From: HyungKyu Song Date: Fri, 15 Feb 2013 15:13:29 +0000 (+0900) Subject: Tizen 2.0 Release X-Git-Tag: accepted/tizen_2.0/20130215.203832^0 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cc04b69772672cb473898b3e6e87012467692d34;p=framework%2Fgraphics%2Ffreetype.git Tizen 2.0 Release --- diff --git a/ChangeLog b/ChangeLog new file mode 100644 index 0000000..9afc1aa --- /dev/null +++ b/ChangeLog @@ -0,0 +1,4076 @@ +2012-03-08 Werner Lemberg + + * Version 2.4.9 released. + ========================= + + + Tag sources with `VER-2-4-9'. + + * docs/CHANGES: Updated. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.4.9. + + * README, Jamfile (RefDoc), + builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, + builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, + builds/win32/vc2010/freetype.vcxproj, builds/win32/vc2010/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj, + builds/win32/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.4.8/2.4.9/, s/248/249/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 9. + + * builds/unix/configure.raw (version_info): Set to 14:1:8. + +2012-03-08 Werner Lemberg + + [bdf] Add missing overflow check. + + * src/bdf/bdflib.c (_bdf_parse_glyphs) : Add threshold for + `glyph->bpr'. + +2012-03-07 Vinnie Falco + + Prepare source code for amalgamation. + + * src\autofit\aferrors.h, src\bdf\bdferror.h, src\bzip2\ftbzip2.c, + src\cache\ftcerror.h, src\cff\cfferrs.h, src\cid\ciderrs.h, + src\gxvalid\gxverror.h, src\gzip\ftgzip.c, src\lzw\ftlzw.c, + src\otvalid\otverror.h, src\pcf\pcferror.h, src\pfr\pfrerror.h, + src\psaux\psauxerr.h, src\pshinter\pshnterr.h, + src\psnames\psnamerr.h, src\raster\rasterrs.h, src\sfnt\sferrors.h, + src\smooth\ftsmerrs.h, src\truetype\tterrors.h, + src\type1\t1errors.h, src\type42\t42error.h, src\winfonts\fnterrs.h: + Add #undef FT_ERR_PREFIX before #define FT_ERR_PREFIX. + +2012-03-03 Werner Lemberg + + Fix Savannah bug #35660. + + For some divisions, we use casts to 32bit entities. Always guard + against division by zero with these casts also. + + * src/base/ftcalc.c (ft_div64by32): Remove redundant cast. + (FT_MulDiv, FT_MulDiv_No_Round): Add 32bit cast. + (FT_DivFix): Add 32bit cast (this omission triggered the bug). + +2012-03-03 Werner Lemberg + + [psaux] Fix handling of track kerning. + + * src/psaux/afmparse.c (afm_parse_track_kern): Don't inverse sign + for `min_kern'. It is indeed quite common that track kerning + *increases* spacing for very small sizes. + +2012-03-02 Werner Lemberg + + [truetype] Fix Savannah bug #35689. + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Check first outline + point. + +2012-03-01 Werner Lemberg + + [bdf] Fix Savannah bug #35656. + + * src/bdf/bdflib.c (_bdf_parse_glyphs) <_BDF_BITMAP>: Check validity + of nibble characters instead of accessing `a2i' array. + +2012-03-01 Werner Lemberg + + [winfonts] Fix Savannah bug #35659. + + * src/winfonts/winfnt.c (FNT_Face_Init): Check number of glyphs. + +2012-03-01 Werner Lemberg + + [bdf] Fix Savannah bug #35658. + + * src/bdf/bdflib.c (_bdf_list_split): Initialize `field' elements + properly. + +2012-03-01 Werner Lemberg + + [psaux] Fix Savannah bug #35657. + + If in function `skip_spaces' the routine `skip_comment' comes to the + end of buffer, `cur' is still increased by one, so we need to check + for `p >= limit' and not `p == limit'. + + * src/psaux/psconv.c (PS_Conv_Strtol, PS_Conv_ToFixed, + PS_Conv_ASCIIHexDecode, PS_Conv_EexecDecode): Fix boundary checking. + +2012-03-01 Werner Lemberg + + [truetype] Fix Savannah bug #35646. + + * src/truetype/ttinterp.c (Ins_MIRP): Typo, present since ages. The + code is now in sync with the other operators (e.g. MSIRP) which + modify twilight points. + +2012-03-01 Werner Lemberg + + [bdf] Fix Savannah bug #35643. + + * src/bdf/bdflib.c (_bdf_list_ensure): Bring code in sync with + comment before `_bdf_list_split', this is, really allocate at least + five `field' elements. + +2012-03-01 Werner Lemberg + + [bdf] Fix Savannah bug #35641. + + * src/bdf/bdflib.c (_bdf_parse_glyphs) : Abort if + _BDF_ENCODING isn't set. We need this because access to the `glyph' + variable might be undefined otherwise. + +2012-03-01 Werner Lemberg + + [truetype] Fix Savannah bug #35640. + + * src/truetype/ttinterp.c (SkipCode, TT_RunIns): Fix boundary check + for NPUSHB and NPUSHW instructions. + +2012-02-29 Werner Lemberg + + [truetype] Fix Savannah bug #35601. + + * src/truetype/ttinterp.c (Ins_SHZ): Use number of points instead of + last point for loop. + Also remove redundant boundary check. + +2012-02-29 Werner Lemberg + + [truetype] Remove redundant check. + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Remove redundant + second check for ordered contour start points. + +2012-02-29 Werner Lemberg + + [truetype] Make SHC instruction behave similar to MS rasterizer. + + * src/truetype/ttinterp.c (Ins_SHC): Handle virtual contour in + twilight zone. + +2012-02-29 Alexei Podtelezhnikov + + Avoid modulo operators against a power-of-two denominator. + + * src/afcjk.c (af_hint_normal_stem), src/base/ftoutln.c + (ft_contour_has), src/cff/cffgload.c (cff_decoder_parse_charstrings) + , + src/gxvalid/gxvcommn.c (GXV_32BIT_ALIGNMENT_VALIDATE), + src/gxvalid/gxvfeat.c (gxv_feat_setting_validate): Replace `%' with + `&' operator. + +2012-02-29 Werner Lemberg + + [autofit] Don't synchronize digit widths for light rendering mode. + + We don't hint horizontally in this mode. + + * src/autofit/afloader.c (af_loader_load_g) : + Implement it. + +2012-02-26 Alexei Podtelezhnikov + + [type42] Minor code optimization (again). + + * src/type42/t42parse.c (t42_parse_sfnts): Simplify previous change. + +2012-02-26 Mateusz Jurczyk + Werner Lemberg + + [smooth] Fix Savannah bug #35604. + + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Use `FT_Pos' + instead of `FT_UInt' for some variables and update comparisons + accordingly. A detailed analysis can be found in the bug report. + +2012-02-26 Alexei Podtelezhnikov + + [type42] Minor code optimization. + + * src/type42/t42parse.c (t42_parse_sfnts): Use bitmask instead of + modulo operator. + +2012-02-26 Werner Lemberg + + * docs/CHANGES: Updated. + +2012-02-26 Werner Lemberg + + [type1] Fix Savannah bug #35608. + + * src/type1/t1parse.c (T1_Get_Private_Dict): Reject too short + dictionaries. + +2012-02-26 Werner Lemberg + + [bdf] Support `ENCODING -1 ' format. + + * src/bdf/bdflib.c (_bdf_parse_glyphs) : Implement it. + +2012-02-26 Werner Lemberg + + [bdf] Fix Savannah bug #35607. + + * src/bdf/bdflib.c (_bdf_parse_glyphs) : Normalize + negative encoding values. + +2012-02-26 Werner Lemberg + + [type1] Fix Savannah bug #35606. + + * src/type1/t1load.c (parse_subrs): Add proper guards for `strncmp'. + + * src/psaux/psobjs.c (ps_parser_skip_PS_token): Emit error message + only if cur < limit. + +2012-02-25 Werner Lemberg + + [pcf] Fix Savannah bug #35603. + + * src/pcf/pcfread.c (pcf_get_properties): Assure final zero byte in + `strings' array. + +2012-02-25 Werner Lemberg + + [type42] Fix Savannah bug #35602. + + * src/type42/t42parse.c (t42_parse_sfnts): Check `string_size' more + thoroughly. + +2012-02-25 Werner Lemberg + + [bdf] Fix Savannah bugs #35599 and #35600. + + * src/bdf/bdflib.c (ACMSG16): New warning message. + (_bdf_parse_glyphs) <_BDF_BITMAP>: Check line length. + +2012-02-24 Werner Lemberg + + [bdf] Fix Savannah bugs #35597 and #35598. + + * src/bdf/bdflib.c (_bdf_is_atom): Fix handling of property value. + +2012-02-24  Vinnie Falco + + Prepare source code for amalgamation (6/6). + + * src/cff/cffdrivr.c: s/Load_Glyph/cff_glyph_load/. + + * src/cid/cidload.c: s/parse_font_matrix/cid_parse_font_matrix/. + s/t1_init_loader/cid_init_loader/. + s/t1_done_loader/cid_done_loader/. + + * src/pxaux/t1cmap.c: s/t1_get_glyph_name/psaux_get_glyph_name/. + + * src/truetype/ttdriver.c: s/Load_Glyph/tt_glyph_load/. + + * src/type1/t1load.c: s/parse_font_matrix/t1_parse_font_matrix/. + +2012-02-24  Vinnie Falco + + Prepare source code for amalgamation (5/6). + + * include/freetype/fterrors.h: Undefine FT_KEEP_ERR_PREFIX after + using it. + +2012-02-22  Vinnie Falco + + Prepare source code for amalgamation (4/6). + + * src/smooth/ftgrays.c, src/raster/ftraster.c: Undefine RAS_ARG, + RAS_ARGS, RAS_VAR, and RAS_VARS before defining it. + + * src/smooth/ftgrays.c: s/TRaster/black_TRaster/, + s/PRaster/black_PRaster/. + * src/raster/ftraster.c: s/TRaster/gray_TRaster/, + s/PRaster/gray_PRaster/. + +2012-02-20  Vinnie Falco + + Prepare source code for amalgamation (3/6). + + * src/smooth/ftgrays.c: s/TWorker/black_TWorker/, + s/PWorker/black_PWorker/. + * src/raster/ftraster.c: s/TWorker/gray_TWorker/, + s/PWorker/gray_PWorker/. + +2012-02-20  Vinnie Falco + + Prepare source code for amalgamation (2/6). + + * src/smooth/ftgrays.c, src/raster/ftraster.c: Undefine FLOOR, + CEILING, TRUNC, and SCALED before defining it. + +2012-02-20  Vinnie Falco + + Prepare source code for amalgamation (1/6). + + See discussion starting at + + http://lists.gnu.org/archive/html/freetype-devel/2012-01/msg00037.html + + * src/smooth/ftgrays.c: s/TBand/gray_TBand/. + * src/raster/ftraster.c: s/TBand/black_TBand/. + +2012-02-17 Alexei Podtelezhnikov + + [autofit] Fix outline flags. + + * src/autofit/afloader.c (af_loader_load_g): Don't reassign + `outline.flags' so that this information is preserved. See + discussion starting at + + http://lists.gnu.org/archive/html/freetype-devel/2012-02/msg00046.html + +2012-02-11 Werner Lemberg + + [truetype] Fix Savannah bug #35466. + + Jump instructions are now bound to the current function. The MS + Windows rasterizer behaves the same, as confirmed by Greg Hitchcock. + + * src/truetype/ttinterp.h (TT_CallRec): Add `Cur_End' element. + * src/truetype/ttobjs.h (TT_DefRecord): Add `end' element. + + * src/truetype/ttinterp.c (DO_JROT, DO_JMPR, DO_JROF): Check upper + bound of jump address. + (Ins_FDEF, Ins_CALL, Ins_LOOPCALL, Ins_UNKNOWN, TT_RunIns): Updated. + +2012-02-11 Werner Lemberg + + We don't use `extensions'. + + * include/freetype/internal/ftobjs.h (FT_DriverRec): Remove + `extensions' field. + +2012-02-11 Werner Lemberg + + Clean up `generic' fields. + + * include/freetype/internal/ftobjs.h (FT_ModuleRec, FT_LibraryRec): + Remove `generic' field since users can't access it. + + * src/base/ftobjs.c (FT_Done_GlyphSlot): Call `generic.finalizer' as + advertised in the documentation of FT_Generic. + (Destroy_Module, FT_Done_Library): Updated to changes in `ftobjs.h'. + +2012-02-07 Werner Lemberg + + [autofit] Harmonize function arguments. + + * src/autofit/afloader.c, src/autofit/afloader.h: Use `FT_Int32' for + `load_flags'. + +2012-02-07 Werner Lemberg + + * src/cff/cffobjs.c (cff_face_init): Remove unnecessary casts. + +2012-01-17 suzuki toshiya + + [gxvalid] Fix Savannah bug #35286. + + Patch submitted by anonymous reporter. + + * src/gxvalid/gxvcommn.c (gxv_XStateTable_subtable_setup): + gxv_set_length_by_ulong_offset() must be called with 3, not 4, + the number of the subtables in the state tables; classTable, + stateArray, entryTable. + +2012-01-17 suzuki toshiya + + [raccess] Modify for PIC build. + + Based on the patch provided by Erik Dahlstrom , + http://lists.gnu.org/archive/html/freetype-devel/2012-01/msg00010.html + + Also `raccess_guess_table[]' and `raccess_rule_by_darwin_vfs()' + are renamed with `ft_' suffixes. + + * src/base/ftbase.h: `raccess_rule_by_darwin_vfs()' is renamed + to `ft_raccess_rule_by_darwin_vfs()'. + * src/base/ftobjs.c: Ditto. + + * src/base/ftrfork.c: Declarations of FT_RFork_Rule, + raccess_guess_rec, are moved to... + * include/freetype/internal/ftrfork.h: Here. + + * include/freetype/internal/ftrfork.h: + FT_RFORK_RULE_ARRAY_{BEGIN,ENTRY,END} macros are defined + to replace raccess_guess_table[] in both of PIC and non-PIC + modes. + * src/base/ftrfork.c: raccess_guess_table[] array is rewritten + by FT_RFORK_RULE_ARRAY_{BEGIN,ENTRY,END}. + + * src/base/basepic.h (BasePIC): Add `ft_raccess_guess_table' + storage. (FT_RACCESS_GUESS_TABLE_GET): New macro to retrieve + the function pointer from `ft_raccess_guess_table' storage in + `BasePIC' structure. + * src/base/ftrfork.c (FT_Raccess_Guess): Rewritten with + FT_RACCESS_GUESS_TABLE_GET. + (raccess_get_rule_type_from_rule_index): Add `library' as the + first argument to the function, to retrieve the storage of + `ft_raccess_guess_table' from it. Also `raccess_guess_table' + is replaced by FT_RACCESS_GUESS_TABLE_GET. + (ft_raccess_rule_by_darwin_vfs): Ditto. + +2012-01-16 suzuki toshiya + + Remove trailing spaces. + +2012-01-16 suzuki toshiya + + Formatting PIC related sources. + + * src/autofit/afpic.c: Harmonize to FT2 coding conventions. + * src/base/basepic.c: Ditto. + * src/base/ftpic.c: Ditto. + * src/cff/cffpic.c: Ditto. + * src/pshinter/pshpic.c: Ditto. + * src/psnames/pspic.c: Ditto. + * src/raster/rastpic.c: Ditto. + * src/sfnt/sfntpic.c: Ditto. + * src/smooth/ftspic.c: Ditto. + * src/truetype/ttpic.c: Ditto. + +2012-01-16 suzuki toshiya + + [autofit] Fix the inclusion of `aflatin2.h' in PIC file. + + * src/autofit/afpic.c: Include `aflatin2.h' when + FT_OPTION_AUTOFIT2 is defined, as afglobal.c does so. + Unconditionally inclusion causes declared but unimplemented + warning by GCC 4.6. + +2012-01-16 suzuki toshiya + + [cff] Remove redundant declarations of cff_cmap_XXX_class_rec. + + * src/cff/cffpic.c: The declarations of + FT_Init_Class_cff_cmap_encoding_class_rec() and + FT_Init_Class_cff_cmap_unicode_class_rec() are removed. + They can be obtained by the inclusion of cffcmap.h. + cffcmap.h invokes FT_DECLARE_CMAP_CLASS() and it declares + FT_Init_Class_cff_cmap_encoding_class_rec() etc in PIC mode. + +2012-01-15 suzuki toshiya + + Fix redundant declaration warning in PIC mode. + + Originally FT_DEFINE_{DRIVER,MODULE,RENDERER}() macros were + designed to declare xxx_pic_{free,init} by themselves. + Because these macros are used at the end of the module + interface (e.g. ttdriver.c) and the wrapper source to build + a module as a single object (e.g. truetype.c) includes + the PIC file (e.g. ttpic.c) before the module interface, + these macros are expanded AFTER xxx_pic_{free,init} body + when the modules are built as single object. + The declaration after the implementation causes the redundant + declaration warnings, so the declarations are moved to module + PIC headers (e.g. ttpic.h). Separating to other header files + are needed for multi build. + + * include/freetype/internal/ftdriver.h (FT_DEFINE_DRIVER): + Remove class_##_pic_free and class_##_pic_init declarations. + * include/freetype/internal/ftobjs.h (FT_DEFINE_RENDERER, + FT_DEFINE_MODULE): Ditto. + + * src/base/basepic.h: Insert a comment and fix coding style. + * src/autofit/afpic.h: Declare autofit_module_class_pic_{free, + init}. + * src/cff/cffpic.h: Declare cff_driver_class_pic_{free,init}. + * src/pshinter/pshpic.h: Declare pshinter_module_class_pic_{free, + init}. + * src/psnames/pspic.h: Declare psnames_module_class_pic_{free, + init}. + * src/raster/rastpic.h: Declare + ft_raster{1,5}_renderer_class_pic_{free,init} + * src/sfnt/sfntpic.h: Declare sfnt_module_class_pic_{free,init}. + * src/smooth/ftspic.h: Declare + ft_smooth_{,lcd_,lcdv_}renderer_class_pic_{free,init}. + * src/truetype/ttpic.h: Declare tt_driver_class_pic_{free,init}. + +2012-01-15 suzuki toshiya + + Make pspic.c to include module error header to fix multi build. + + * src/psnames/pspic.c: Include `psnamerr.h'. + +2012-01-14 suzuki toshiya + + [base] Fix a dereference of uninitialized variable in PIC mode. + + * src/base/ftglyph.c (FT_Glyph_To_Bitmap): `glyph' must be + set before derefering to obtain `library'. The initialization + of `clazz', `glyph', `library' and NULL pointer check are + reordered to minimize PIC conditonals. + +2012-01-14 suzuki toshiya + + [base] Insert explicit cast for GCC 4.6 in PIC mode. + + * src/base/ftinit.c (FT_Add_Default_Modules): Under PIC + configuration, FT_DEFAULT_MODULES_GET returns + FT_Module_Class** pointer, GCC 4.6 warns that + const FT_Module_Class* const* variable is warned as + inappropriate to store it. To calm it, explicit cast is + inserted. Also `library' is checked to prevent the NULL + pointer dereference in FT_DEFAULT_MODULES_GET. + +2012-01-13 suzuki toshiya + + Fix PIC build broken by d9145241fe378104ba4c12a42534549faacc92e6. + + Under PIC configuration, FT_{CFF,PSCMAPS,SFNT,TT}_SERVICES_GET + take no arguments but derefer the variable named `library' + internally. + + * src/cff/cffdrivr.c (cff_get_interface): Declare `library' and + set it if non-NULL driver is passed. + * src/truetype/ttdriver.c (tt_get_interface): Ditto. + + * src/sfnt/sfdriver.c (sfnt_get_interface): Declare `library' + under PIC configuration, and set it if non-NULL module is given. + * src/psnames/psmodule.c (psnames_get_interface): Ditto. + +2012-01-13 suzuki toshiya + + Make PIC files include module error headers, to use the error codes + with per-module prefix. + + * src/autofit/afpic.c: Include `aferrors.h'. + * src/cff/cffpic.c: Include `cfferrs.h'. + * src/pshinter/pshpic.c: Include `pshnterr.h'. + * src/raster/rastpic.c: Include `rasterrs.h'. + * src/sfnt/sfntpic.c: Include `sferrors.h'. + * src/smooth/ftspic.c: Include `ftsmerrs.h'. + * src/truetype/ttpic.c: Include `tterrors.h'. + +2012-01-04 Tobias Ringström + + [truetype] Fix IP instruction if x_ppem != y_ppem. + + * src/truetype/ttinterp.c (Ins_IP): Scale `orus' coordinates + properly. + +2012-01-02 Werner Lemberg + + Fix tracing message for `loca' table. + + * src/truetype/ttpload.c (tt_face_get_location): Don't emit a + warning message if the last `loca' entry references an empty glyph. + +2011-12-10 Werner Lemberg + + Add some variable initializations. + Reported by Richard COOK . + + * src/type1/t1driver.c (t1_ps_get_font_value): Initialize `val'. + * src/smooth/ftgrays.c (gray_render_conic): Initialize `levels' + earlier. + +2011-12-08 Werner Lemberg + + Fix serious scaling bug in `FT_Get_Advances'. + + * src/base/ftadvanc.c (FT_Get_Advances): Advance values returned by + `FT_Load_Glyph' must be simply multiplied by 1024. + +2011-12-08 Werner Lemberg + + * src/bdf/bdflib.c (_bdf_parse_start): Drop redundant error tracing. + +2011-12-02 suzuki toshiya + + [mac] Unify DARWIN_NO_CARBON with FT_MACINTOSH. + + Originally FT_MACINTOSH was a pure auto macro and DARWIN_NO_CARBON + was a configurable macro to disable Carbon-dependent code. Because + now configure script sets DARWIN_NO_CARBON by default and disables + Darwin & Carbon-dependent codes, these macros can be unified. + FT_MACINTOSH (undefined by default) is kept and DARWIN_NO_CARBON + (defined by default) is removed, because DARWIN_NO_CARBON violates + FT_XXX naming convention of public macros, and a macro configured by + default is not portable for the building without configure (e.g. + make devel). + + * builds/unix/configure.raw: Define FT_MACINTOSH if Carbon-based + old Mac font support is requested and Carbon is available. + * builds/unix/ftconfig.in: Undefine FT_MACINTOSH when the support + for Mac OS X without Carbon (e.g. Mac OS X 10.4 for ppc64) is + requested. + * include/freetype/config/ftconfig.in: Ditto. + * builds/vms/ftconfig.h: Ditto. + + * src/base/ftbase.h: Remove DARWIN_NO_CARBON. + * src/base/ftbase.c: Ditto. + * src/base/ftobjs.c: Ditto. + * src/base/ftrfork.c: Ditto. + + * src/base/ftmac.c: Compile the body if FT_MACINTOSH is defined + (same with TT_USE_BYTECODE_INTERPRETER in ttinterp.c). + * builds/mac/ftmac.c: Ditto. + + * builds/mac/FreeType.m68k_cfm.make.txt: Define FT_MACINTOSH. + * builds/mac/FreeType.m68k_far.make.txt: Ditto. + * builds/mac/FreeType.ppc_classic.make.txt: Ditto. + * builds/mac/FreeType.ppc_carbon.make.txt: Ditto. + +2011-11-30 suzuki toshiya + + Fix Savannah bug #34728 (`make devel' on Mac OS X). + + * builds/toplevel.mk: Check `/dev/null' to identify the Unix- + like systems without `init' nor `hurd' (e.g. Mac OS X >= 10.4). + * builds/unix/detect.mk: Ditto. + +2011-11-30 suzuki toshiya + + [apinames] Fix the overflow of signed integer hash. + + * src/tools/apinames.c (names_add): Change the type of `h' from + int to unsigned int, to prevent undefined behaviour in the + overflow of signed integers (overflow of unsigned int is defined + to be wrap around). Found by clang test suggested by Sean + McBride. + +2011-11-30 Werner Lemberg + + [winfonts] Remove casts. + + * src/winfonts/winfnt.c (winfnt_driver_class): Remove all casts and + update affected functions. + (FNT_Size_Select): Fix number of arguments. + +2011-11-30 Werner Lemberg + + [type42] Remove casts. + + * src/type42/t42driver.c (t42_driver_class): Remove all casts and + update affected functions. + + * src/type42/t42objs.c, src/type42/t42objs.h: Updated for t42driver + changes. + +2011-11-30 Werner Lemberg + + [type1] Remove casts. + + * src/type1/t1driver.c (t1_driver_class): Remove all casts and + update affected functions. + + * src/type1/t1gload.c, src/type1/t1gload.h, src/type1/t1objs.c: + Updated for t1driver changes. + src/type1/t1objs.h (T1_Driver): Remove unused typedef. + Updated for t1driver changes. + +2011-11-27 Werner Lemberg + + [bdf] Fix Savannah bug #34896. + + ENCODING now covers the whole Unicode range. + + Note, however, that this change is quite expensive since it + increases the size of three arrays by almost 400kByte in total. The + right fix is to replace the logic with something smarter. + Additionally, there exist very old BDFs for three-byte CCCII + encoding which exceeds the range of Unicode (another reason to have + a smarter logic). + + * src/bdf/bdf.h (bdf_font_t): Increase size of `nmod' and `umod' + arrays. + * src/bdf/bdflib.c (bdf_parse_t): Increase size of `have' array. + +2011-11-27 Werner Lemberg + + [bdf] Improve tracing. + + * src/bdf/bdflib.c (DBGMSG1, DBGMSG2): New macros. + (_bdf_parse_glyphs): Use them. + +2011-11-26 Werner Lemberg + + Improve tracing. + + * src/bdf/bdfdrivr.c (BDF_Face_Done), src/pcf/pcfdrivr.c + (PCF_Face_Done): Remove tracing message. + + * src/bdf/bdfdrivr.c (BDF_Face_Init), src/cff/cffobjs.c + (cff_face_init), src/cid/cidobjs.c (cid_face_init), + src/pfr/pfrobjs.c (pfr_face_init), src/sfnt/sfobjs.c + (sfnt_init_face), src/truetype/ttobjs.c (tt_face_init), + src/type1/t1objs.c (T1_Face_Init), src/type42/t42objs.c + (T42_Face_Init), src/winfonts/winfnt.c (FNT_Face_Init): Add + `greeting' message. + + * src/sfnt/sfobjs.c (sfnt_open_font), src/type42/t42objs.c + (T42_Open_Face): Improve tracing. + +2011-11-26 Werner Lemberg + + [cid] Fix error code. + + * src/cid/cidparse.c (cid_parser_new): Do it. + +2011-11-26 Werner Lemberg + + [cff] Fix error code. + + * src/cff/cffload.c (cff_font_load): Do it. + +2011-11-26 Werner Lemberg + + Add new error code FT_Err_Missing_Module. + + Previously, FreeType misleadingly returned + FT_Err_Unknown_File_Format if a module was missing (or a test was + missing completely). + + * include/freetype/fterrdef.h (FT_Err_Missing_Module): Define. + + * src/cff/cffobjs.c (cff_face_init), src/cff/cffdrivr.c + (cff_get_glyph_name), src/cid/cidobjs.c (cid_face_init), + src/sfnt/sfobjs.c (sfnt_init_face), src/truetype/ttobjs.c + (tt_face_init), src/type1/t1objs.c (T1_Face_Init), + src/type42/t42objs.c (T42_Face_Init, T42_Driver_Init): Updated. + + * src/type1/t1afm.c (T1_Read_Metrics), src/type/t1objs.c + (T1_Face_Init), src/type42/t42objs.c (T42_Face_Init): Remove now + redundant test for `psaux'. + +2011-11-25 Werner Lemberg + + [bdf] Add more error messages. + + * src/bdf/bdflib.c (_bdf_set_default_spacing, _bdf_add_property): + Add line number argument. + Update all callers. + (ERRMSG5, ERRMSG6, ERRMSG7, ERRMSG8, ERRMSG9): New macros. + (_bdf_readstream, _bdf_set_default_spacing, _bdf_add_property, + _bdf_parse_glyphs, _bdf_parse_start): Add error messages. + +2011-11-24 Werner Lemberg + + * include/freetype/fterrors.h: Remove dead code. + +2011-11-15 Werner Lemberg + + * docs/releases: Updated. + +2011-11-15 Werner Lemberg + + * Version 2.4.8 released. + ========================= + + + Tag sources with `VER-2-4-8'. + + * docs/CHANGES: Updated. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.4.8. + + * README, Jamfile (RefDoc), + builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, + builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, + builds/win32/vc2010/freetype.vcxproj, builds/win32/vc2010/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj, + builds/win32/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.4.7/2.4.8/, s/247/248/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 8. + + * builds/unix/configure.raw (version_info): Set to 14:0:8. + +2011-11-13 Chris Liddell + + Add FT_Get_PS_Font_Value() API. + + This allows a Type 1 font face to be interrogated to retrieve most + of the dictionary keys (keys not relevant to FreeType's Type 1 + interpreter are not available). + + * include/freetype/internal/services/svpsinfo.h + (PS_GetFontValueFunc): New typedef. + (PSInfo): Add `ps_get_font_value'. + (FT_DEFINE_SERVICE_PSINFOREC): Updated. + + * include/freetype/internal/t1types.h (T1_EncodingType): Moved to... + * include/freetype/t1tables.h: Here. + (PS_Dict_Keys): New enumeration. + (FT_Get_PS_Font_Value): New declaration. + + * src/base/fttype1.c (FT_Get_PS_Font_Value): New function. + + * src/type1/t1driver.c (t1_ps_get_font_value): This new function + does the real job. + (t1_service_ps_info): Add it. + + * src/cff/cffdrivr.c (cff_service_ps_info), src/cid/cidriver.c + (cid_service_ps_info), src/type42/t42drivr.c (t42_service_ps_info): + Updated. + +2011-11-08 Braden Thomas + + [cid] Various loading fixes. + + * src/cid/cidload.c (cid_load_keyword) , + (parse_font_matrix, parse_expansion_factor): Correctly check number + of dictionaries. + (cid_read_subrs): Protect against invalid values of `num_subrs'. + Assure that the elements of the `offsets' array are ascending. + +2011-11-05 Werner Lemberg + + * README: We use copyright ranges also. + + According to + + http://www.gnu.org/prep/maintain/html_node/Copyright-Notices.html + + this should be mentioned explicitly. + +2011-10-30 suzuki toshiya + + [raccess] Supplement for previous fix. + + * src/base/ftbase.h (raccess_rule_by_darwin_vfs): Do not declare + it on native Mac OS X. + * src/base/ftrfork.c (raccess_get_rule_type_from_rule_index): + Hide raccess_get_rule_type_from_rule_index() on native Mac OS X + too. + +2011-10-30 suzuki toshiya + + [raccess] Hide raccess_rule_by_darwin_vfs() on native Mac OS X. + + * src/base/ftrfork.c (raccess_rule_by_darwin_vfs): Do not + compile on native Mac OS X because it is not used. + +2011-10-25 Werner Lemberg + + [truetype] Fix MD instruction for twilight zone. + + * src/truetype/ttinterp.c (Ins_MD): Without this fix, the MD + instruction applied to original coordinates of twilight points + always returns zero. + +2011-10-18 Werner Lemberg + + * Version 2.4.7 released. + ========================= + + + Tag sources with `VER-2-4-7'. + + * docs/CHANGES: Updated. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.4.7. + + * README, Jamfile (RefDoc), + builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, + builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, + builds/win32/vc2010/freetype.vcxproj, builds/win32/vc2010/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj, + builds/win32/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.4.6/2.4.7/, s/246/247/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 7. + + * builds/unix/configure.raw (version_info): Set to 13:2:7. + +2011-10-15 Kal Conley + + Fix handling of transformations if no renderer is present. + + * src/base/ftobjs.c (FT_Load_Glyph): Thinko. + +2011-10-15 Kal Conley + + Fix conditions for autohinting. + + * src/base/ftobjs.c (FT_Load_Glyph): Handle + FT_LOAD_IGNORE_TRANSFORM. + +2011-10-07 suzuki toshiya + + [gxvalid] Fix a bug to detect too large offset in morx table. + + * src/gxvalid/gxvmorx2.c + (gxv_morx_subtable_type2_ligActionIndex_validate): Fix a bug + that too large positive offset cannot be detected. + +2011-10-01 Braden Thomas + + Handle some border cases. + + * include/freetype/config/ftstdlib.h (FT_USHORT_MAX): New macro. + + * src/base/ftbitmap.c (FT_Bitmap_Convert): Protect against invalid + value of `target->rows'. + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings): Add check for + flex start. + + * src/raster/ftrend1.c (ft_raster1_render): Check `width' and + `height'. + + * src/truetype/ttgxvar.c (TT_Vary_Get_Glyph_Deltas): Protect against + invalid values in `localpoints' array. + +2011-10-01 Werner Lemberg + + [psnames] Handle zapfdingbats. + Problem reported by Nicolas Rougier . + + * src/tools/glnames.py (adobe_glyph_list): Add data from AGL's + `zapfdingbats.txt' file. + + * src/psnames/pstables.h: Regenerated. + +2011-09-27 Simon Bünzli + + Fix Savannah bug #34189. + + * src/type1/t1load.c (T1_Open_Face): Initialize + `face->len_buildchar'. + +2011-09-26 Werner Lemberg + + [cff] Dump SIDs while tracing. + + * src/cff/cffobjs.c (cff_face_init): Do it. + + * src/cff/cffparse.c (cff_parser_run) [FT_DEBUG_LEVEL_TRACE] + : Identify as SID. + +2011-09-17 Werner Lemberg + + Remove unused FT_ALIGNMENT macro. + + * builds/unix/ftconfig.in, builds/vms/ftconfig.h, + include/freetype/config/ftconfig.h: Do it. + +2011-09-17 Alexei Podtelezhnikov + + [smooth] Slightly optimize conic and cubic flatterners. + + * src/smooth/ftgrays.c (gray_render_conic, gray_render_cubic): Move + out some code from the main loop to speed it up. + +2011-09-11 Tomas Hoger + + Slightly improve LZW_CLEAR handling. + + * src/lzw/ftzopen.c (ft_lzwstate_io) : + Ensure that subsequent (modulo garbage byte(s)) LZW_CLEAR codes are + handled as clear codes. This also re-sets old_code and old_char to + predictable values, which is a little better than using `random' + ones if the code following LZW_CLEAR is invalid. + +2011-09-11 Tomas Hoger + + Add explicit LZW decompression stack size limit. + + Stack larger than 1<prefix[code - 256] + when traversing prefix table. Such check is less efficient and + should not be required if prefix table is constructed correctly in + the first place. + + * src/lzw/ftzopen.c (ft_lzwstate_stack_grow): Implement it. + +2011-09-11 Tomas Hoger + + Protect against loops in the prefix table. + + LZW decompressor did not sufficiently check codes read from the + input LZW stream. A specially-crafted or corrupted input could + create a loop in the prefix table, which leads to memory usage + spikes, as there's no decompression stack size limit. + + * src/lzw/ftzopen.c (ft_lzwstate_io) : First + code in valid LZW stream must be 0..255. + : In the special KwKwK case, code == free_ent, + code > free_ent is invalid. + +2011-09-09 Werner Lemberg + + Better tracing of metrics. + + * src/base/ftobjs.c (FT_Request_Size, FT_Select_Size): Decorate with + FT_TRACE. + +2011-09-07 Werner Lemberg + + Fix Savannah bug #33816. + + * src/cff/cfftypes.h (CFF_FontRecDictRec): New member + `has_font_matrix'. + * src/cff/cffparse.c (cff_parse_font_matrix): Set it. + Update tracing output. + * src/cff/cffobjs.c (cff_face_init): Use it so that the heuristics + can be removed. + +2011-08-30 Werner Lemberg + + Better tracing of metrics. + + * src/base/ftobjs.c (FT_Select_Metrics, FT_Request_Metrics): + Decorate with FT_TRACE. + +2011-08-25 Werner Lemberg + + [cff] Better tracing of the parsing process. + + * src/cff/cffload.c (cff_subfont_load, cff_font_load): Decorate with + FT_TRACE. + + * src/cff/cffparse.c (cff_parse_font_matrix, cff_parse_font_bbox, + cff_parse_private_dict, cff_parse_cid_ros): Updated. + (CFF_FIELD_NUM, CFF_FIELD_FIXED, CFF_FIELD_FIXED_1000, + CFF_FIELD_STRING, CFF_FIELD_BOOL, CFF_FIELD_CALLBACK, CFF_FIELD, + CFF_FIELD_DELTA): Add argument for ID. + (cff_parser_run): Decorate with FT_TRACE. + + * src/cff/cffparse.h (CFF_Field_Handler) [FT_DEBUG_LEVEL_TRACE]: Add + `id' member. + + * src/cff/cfftoken.h: Add IDs to all fields. + +2011-08-16 Werner Lemberg + + Fix Savannah bug #34022. + + * README, docs/INSTALL: Remove references to UPGRADE.UNIX. + +2011-08-15 Werner Lemberg + + Fix Savannah bug #34018. + + * docs/UPGRADE.UNIX: Removed. Obsolete. + +2011-08-15 David Bevan + + Fix Savannah bug #33992. + + * src/base/ftstroke.c (FT_Stroker_ParseOutline): Fix border case. + +2011-08-12 Werner Lemberg + + Fix Savannah bug #33975. + + * src/cff/cffparse.c (cff_parse_font_matrix): Fix typo. + +2011-07-29 Werner Lemberg + + * Version 2.4.6 released. + ========================= + + + Tag sources with `VER-2-4-6'. + + * docs/CHANGES: Updated. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.4.6. + + * README, Jamfile (RefDoc), + builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, + builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, + builds/win32/vc2010/freetype.vcxproj, builds/win32/vc2010/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj, + builds/win32/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.4.5/2.4.6/, s/245/246/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 6. + + * builds/unix/configure.raw (version_info): Set to 13:1:7. + +2011-07-29 Werner Lemberg + + [cff] Add some more tracing infos. + + * src/cff/cffparse.c (cff_parse_font_matrix, cff_parse_font_bbox, + cff_parse_cid_ros): Add tracing. + +2011-07-22 Dirk Müller + + [psaux, type1] Fix null pointer dereferences. + + Found with font fuzzying. + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings): Check + `decoder->buildchar'. + + * src/type1/t1load.c (t1_load_keyword): Check `blend->num_designs'. + +2011-07-20 Chris Morgan + + Add FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT. + + Useful for embedded systems which don't need file stream support. + + * src/base/ftsystem.c, src/base/ftobjs.c (FT_Stream_New): Implement + it. + +2011-07-20 Elton Chung + + * src/base/ftpatent.c (FT_Face_SetUnpatentedHinting): Fix typo. + +2011-07-16 Steven Chu + + [truetype] Fix metrics on size request for scalable fonts. + + * src/truetype/ttdriver.c (tt_size_request): Fix copying metrics + from TT_Size to FT_Size if scalable font. + + See + + http://lists.gnu.org/archive/html/freetype-devel/2011-07/msg00049.html + + for some comparison images. + +2011-07-14 Matthias Drochner . + + [psaux] Fix potential sign extension problems. + + When shifting right a signed value, it is not defined by the + C standard whether one gets a sign extension or not. Use a macro to + do an explicit cast from a signed short (assuming that this is + 16bit) to an int. + + * src/psaux/t1decode.c (Fix2Int): New macro. + Use it where appropriate. + +2011-07-14 Werner Lemberg + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings) + : Better handling of subroutine index 0. + From Matthias Drochner . + +2011-07-10 Алексей Подтележников + + [psaux] Optimize previous commit. + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings) + : Move error check down to avoid testing twice for + good cases. + +2011-07-08 Werner Lemberg + + [psaux] Add better argument check for `callothersubr'. + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings) + : Reject negative arguments. + +2011-07-07 Werner Lemberg + + [sfnt] Try harder to find non-zero values for ascender and descender. + + * src/sfnt/sfobjs.c (sfnt_load_face): Consult `OS/2' table in case + the `hhea' table's values are zero. + +2011-07-03 Werner Lemberg + + Fix previous commit. + + We want to unset FT_FACE_FLAG_SCALABLE only if there are bitmap + strikes in the font. + + * src/truetype/ttobjs.c (tt_face_init): Implement it. + + * docs/CHANGES: Updated. + +2011-07-02 Just Fill Bugs + + Fix Savannah bug #33246. + + * src/truetype/ttobjs.c (tt_check_single_notdef): New function. + (tt_face_init): Use it to test FT_FACE_FLAG_SCALABLE. + +2011-07-02 Werner Lemberg + + * docs/CHANGES: Updated. + +2011-07-02 David Bevan + + [ftstroke] Major revision. + + The main problems + ----------------- + + o If FT_STROKER_LINEJOIN_BEVEL was specified, unlimited miter + joins (not bevel joins) were generated. Indeed, the meanings of + `miter' and `bevel' were incorrectly reversed (consistently) in + both the code and comments. + + o The way bevel joins were constructed (whether specified + explicitly, or created as a result of exceeding the miter limit) + did not match what is required for stroked text in PostScript or + PDF. + + The main fixes + -------------- + + o The behaviour of FT_STROKER_LINEJOIN_BEVEL has been corrected. + + o A new line join style, FT_STROKER_LINEJOIN_MITER_FIXED, has been + introduced to support PostScript and PDF miter joins. + + o FT_STROKER_LINEJOIN_MITER_VARIABLE has been introduced as an + alias for FT_STROKER_LINEJOIN_MITER. + + Additionally, a variety of stroking errors have been fixed. These + would cause various artifacts (including points `at infinity'), + especially when stroking poor quality fonts. + + See + + http://lists.gnu.org/archive/html/freetype-devel/2011-07/msg00001.html + + for example documents. The FreeType stroker now produces results + very similar to that produced by GhostScript and Distiller for these + fonts. + + Other problems + -------------- + + The following problems have been resolved: + + o Inside corners could be generated incorrectly. Intersecting the + inside corner could cause a missing triangular area and other + effects. + + The intersection point can only be used if the join is between + two lines and both lines are long enough. The `optimization' + condition in `ft_stroker_inside' has been corrected; this + requires the line length to be passed into various functions and + stored in `FT_StrokerRec'. + + o Incorrect cubic curves could be generated. The angle + calculations in `FT_Stroker_CubicTo' have been corrected to + handle the case of the curve crossing the +/-PI direction. + + o If the border radius was greater than the radius of curvature of + a curve, then the negative sector would end up outside (not + inside) the border. This situation is now recognized and the + negative sector is circumnavigated in the opposite direction. + (If round line joins are being used, this code is disabled + because the line join will always cover the negative sector.) + + o When a curve is split, the arcs may not join smoothly (especially + if the curve turns sharply back on itself). Changes in + direction between adjacent arcs were not handled. A round + corner is now added if the deviation from one arc to the next is + greater than a suitable threshold. + + o The current direction wasn't retained if a the outline contained + a zero length lineto or a curve that was determined to be + `basically a point'. This could cause a spurious join to be + added. + + o Cubics with close control points could be mishandled. All eight + cases are now distinguished correctly. + + Other improvements + ------------------ + + o Borders for cubic curves could be too `flat'. + FT_SMALL_CUBIC_THRESHOLD has been reduced a little to prevent + this. + + o The handling and use of movable points has been simplified a + little. + + o Various values are now computed only if the results are actually + needed. + + o The directions of the outer and inner borders have been swapped, + as recommended by Graham Asher. + + * src/base/ftstroke.c: Revised. + * include/freetype/ftstroke.h: Updated. + +2011-06-30 İsmail Dönmez + + * builds/toplevel.mk: We use git, not CVS, thus skip `.gitignore'. + +2011-06-29 Werner Lemberg + + Fix Savannah bug #33663. + + * src/bdf/bdflib.c (_bdf_parse_glyphs): Handle negative values for + ENCODING correctly. + + * docs/CHANGES: Document it. + +2011-06-24 Werner Lemberg + + * Version 2.4.5 released. + ========================= + + + Tag sources with `VER-2-4-5'. + + * docs/CHANGES: Updated. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.4.5 + + * README, Jamfile (RefDoc), + builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, + builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, + builds/win32/vc2010/freetype.vcxproj, builds/win32/vc2010/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj, + builds/win32/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.4.4/2.4.5/, s/244/245/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 5. + + * builds/unix/configure.raw (version_info): Set to 13:0:7. + +2011-06-20 Werner Lemberg + + * src/autofit/aflatin.c (af_latin_metrics_scale_dim): Fix change + from 2011-05-04. + +2011-06-19 suzuki toshiya + + [gxvalid] make the `prop' validation tracing verbose. + + * src/gxvalid/gxvprop.c: Add tracing messages for errors. + +2011-06-19 suzuki toshiya + + [autogen.sh] Reflect environment variable LIBTOOLIZE. + +2011-06-18 Werner Lemberg + + Update license documentation. + + * docs/GPL.TXT: Renamed to... + * docs/GPLv2.TXT: This. + + * docs/LICENSE.TXT: Updated. + +2011-06-14 suzuki toshiya + + Fix g++4.6 compiler warnings in module drivers. + + The background is same with previous commit. + + * src/truetype/ttgxvar.c (ft_var_readpackedpoints): + Init `points'. (TT_Vary_Get_Glyph_Deltas): Init + `delta_xy'. (TT_Get_MM_Var): Init `mmvar'. + * src/type1/t1load.c (T1_Get_MM_Var): Ditto. + * src/cff/cffdrivr.c (cff_ps_get_font_info): Init + `font_info'. + * src/cff/cffload.c (cff_index_get_pointers): Init `t'. + (cff_font_load): Init `sub'. + * src/cff/cffobjs.c (cff_size_init): Init `internal'. + (cff_face_init): Init `cff'. + * src/pfr/pfrload.c (pfr_extra_item_load_stem_snaps): + Init `snaps'. + * src/pcf/pcfread.c (pcf_get_properties): Init `properties'. + (pcf_get_bitmaps): Init `offsets'. (pcf_get_encodings): + Init `tmpEncoding'. + * src/sfnt/ttload.c (tt_face_load_gasp): Init `gaspranges'. + * src/sfnt/ttsbit.c (Load_SBit_Image): Init `components'. + * src/cache/ftcmru.c (FTC_MruList_New): Init `node'. + * src/gzip/ftgzip.c (FT_Stream_OpenGzip): Init `zip' and + `zip_buff'. + * src/lzw/ftlzw.c (FT_Stream_OpenLZW): Init `zip'. + * src/bzip2/ftbzip2.c (FT_Stream_OpenBzip2): Init `zip'. + +2011-06-14 suzuki toshiya + + [base] Fix g++4.6 compiler warnings in src/base/*.c. + + Passing uninitialized pointer to FT_NEW() families is + not problematic theoretically (as far as the returned + pointer is checked before writing), but g++4.6 dislikes + it and warns by -Wuninitialized. Initialize them by NULL. + + * src/base/ftobjs.c (FT_Stream_New): Init `stream'. + (new_memory_stream): Ditto. + (FT_New_GlyphSlot): Init `slot'. + (FT_CMap_New): Init `cmap'. + (open_face_PS_from_sfnt_stream): Init `sfnt_ps'. + (Mac_Read_POST_Resource): Init `pfb_data'. + (Mac_Read_sfnt_Resource): Init `sfnt_data'. + * src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): + Init `offsets_internal' and `ref'. + (raccess_guess_darwin_hfsplus): Init `newpath'. + (raccess_guess_darwin_newvfs): Ditto. + * src/base/ftbitmap.c (ft_bitmap_assure_buffer): + Init `buffer'. + * src/base/ftstroke.c (FT_Stroker_New): Init `stroker'. + +2011-06-14 suzuki toshiya + + [gxvalid] Cleanup. + + Some invalid, overrunning, unrecommended non-zero values + are cared in paranoid validation mode only. There are + many lines looking like: + + if ( valid->root->level >= FT_VALIDATE_PARANOID ) + FT_INVALID_xxx; + + To simplify them, GXV_SET_ERR_IF_PARANOID( err ) is + introduced for more paranoid validation in future. + + * src/gxvalid/gxvcommn.h (IS_PARANOID_VALIDATION): + New macro to assure valid->root->level is more or + equal to FT_VALIDATE_PARANOID. (GXV_SET_ERR_IF_PARANOID): + New macro to raise an error if in paranoid validation. + * src/gxvalid/gxvcommn.c: Use GXV_SET_ERR_IF_PARANOID(). + * src/gxvalid/gxvfeat.c: Ditto. + * src/gxvalid/gxvjust.c: Ditto. + * src/gxvalid/gxvkern.c: Ditto. + * src/gxvalid/gxvmort.c: Ditto. + * src/gxvalid/gxvmort0.c: Ditto. + * src/gxvalid/gxvmort1.c: Ditto. + * src/gxvalid/gxvmort2.c: Ditto. + * src/gxvalid/gxvmorx1.c: Ditto. + * src/gxvalid/gxvmorx2.c: Ditto. + +2011-06-14 suzuki toshiya + + [gxvalid] Fix gcc4.6 compiler warnings in gxvtrak.c. + + * src/gxvalid/gxvtrak.c (gxv_trak_trackTable_validate): + Check different entries pointing same traking value. + (gxv_trak_validate): Remove unused variable `table_size'. + +2011-06-14 suzuki toshiya + + [gxvalid] Fix gcc4.6 compiler warnings in gxvmorx*.c. + + * src/gxvalid/gxvmorx.c (gxv_morx_subtables_validate): + Conditionalize unvalidated variable `subFeatureFlags'. + (gxv_morx_chain_validate): Conditionalize unvalidated + variable `defaultFlags'. + + * src/gxvalid/gxmorx0.c + (gxv_morx_subtable_type0_entry_validate): + Conditionalize unvalidated variables; `markFirst', + `dontAdvance', `markLast', `verb'. + + * src/gxvalid/gxmorx1.c + (gxv_morx_subtable_type1_entry_validate): Conditionalize + unvalidated variables; `setMark', `dontAdvance'. + + * src/gxvalid/gxvmorx2.c + (gxv_morx_subtable_type2_ligActionOffset_validate): + Conditionalize unvalidated variables; `last', `store'. + Checking for overrunning offset is added. + (gxv_morx_subtable_type2_entry_validate): + Conditionalize unvalidated variables; `setComponent', + `dontAdvance', `performAction'. + (gxv_morx_subtable_type2_ligatureTable_validate): + Check if the GID for ligature does not exceed the + max GID in `maxp' table. + + * src/gxvalid/gxvmort5.c + (gxv_morx_subtable_type5_InsertList_validate): + Conditionalize unvalidated loading of `insert_glyphID' + array. (gxv_morx_subtable_type5_entry_validate): + Conditionalize unvalidated variables; `setMark', + `dontAdvance', `currentIsKashidaLike', + `markedIsKashidaLike', `currentInsertBefore', + `markedInsertBefore'. + +2011-06-14 suzuki toshiya + + [gxvalid] Fix gcc4.6 compiler warnings in gxvmort*.c. + + * src/gxvalid/gxvmort.c (gxv_mort_subtables_validate): + Conditionalize unvalidated variable `subFeatureFlags'. + (gxv_mort_chain_validate): Conditionalize unvalidated + variable `defaultFlags'. + + * src/gxvalid/gxmort0.c + (gxv_mort_subtable_type0_entry_validate): Check the + conflict of the marks for the glyphs. + + * src/gxvalid/gxmort1.c + (gxv_mort_subtable_type1_offset_to_subst_validate): + Local variables `min_gid', `max_gid' are replaced by + variables in the validator. + (gxv_mort_subtable_type1_entry_validate): Conditionalize + unvalidated variables; `setMark', `dontAdvance'. + (gxv_mort_subtable_type1_substTable_validate): + Validate the GID by the min/max GIDs in the validator. + + * src/gxvalid/gxvmort2.c + (gxv_mort_subtable_type2_ligActionOffset_validate): + Conditionalize unvalidated variables; `last', `store'. + Checking for overrunning offset is added. + (gxv_mort_subtable_type2_entry_validate): + Conditionalize unvalidated variables; `setComponent', + `dontAdvance'. + (gxv_mort_subtable_type2_ligatureTable_validate): + Check if the GID for ligature does not exceed the + max GID in `maxp' table. + + * src/gxvalid/gxvmort5.c + (gxv_mort_subtable_type5_InsertList_validate): + Conditionalize unvalidated loading of `insert_glyphID' + array. (gxv_mort_subtable_type5_entry_validate): + Conditionalize unvalidated variables; `setMark', + `dontAdvance', `currentIsKashidaLike', + `markedIsKashidaLike', `currentInsertBefore', + `markedInsertBefore'. + +2011-06-14 suzuki toshiya + + [gxvalid] Fix gcc4.6 compiler warnings in gxvkern.c. + + * src/gxvalid/gxvkern.c + (gxv_kern_subtable_fmt0_pairs_validate): Conditionalize + unvalidated variable `kernValue'. + (gxv_kern_subtable_fmt1_entry_validate): Conditionalize + unvalidated variables; `push', `dontAdvance', `kernAction', + `kernValue'. + (gxv_kern_coverage_new_apple_validate): Conditionalize + trace-only variables; `kernVertical', `kernCrossStream', + `kernVariation'. + (gxv_kern_coverage_classic_apple_validate): Conditionalize + trace-only variables; `horizontal', `cross_stream'. + (gxv_kern_coverage_classic_microsoft_validate): + Conditionalize trace-only variables; `horizontal', + `minimum', `cross_stream', `override'. + (gxv_kern_subtable_validate): Conditionalize trace-only + variables; `version', `tupleIndex'. + +2011-06-14 suzuki toshiya + + [gxvalid] Fix gcc4.6 compiler warnings in gxvjust.c. + + * src/gxvalid/gxvjust.c (gxv_just_check_max_gid): + New function to unify the checks of too large GID. + (gxv_just_wdp_entry_validate): Conditionalize unvalidated + variables; `beforeGrowLimit', `beforeShrinkGrowLimit', + `afterGrowLimit', `afterShrinkGrowLimit', `growFlags', + `shrinkFlags'. Additional check for non-zero values in + unused storage `justClass' is added. + (gxv_just_actSubrecord_type0_validate): Conditionalize + unvalidated variable `order'. GID is checked by + gxv_just_check_max_gid(). Additional check for upside-down + relationship between `lowerLimit' and `upperLimit' is added. + (gxv_just_actSubrecord_type1_validate): GID is checked by + gxv_just_check_max_gid(). + (gxv_just_actSubrecord_type2_validate): Conditionalize + unvalidated variable `substThreshhold'. GID is checked by + gxv_just_check_max_gid(). + (gxv_just_actSubrecord_type5_validate): GID is checked by + gxv_just_check_max_gid(). + (gxv_just_classTable_entry_validate): Conditionalize + unvalidated variables; `setMark', `dontAdvance', + `markClass', `currentClass'. + +2011-06-14 suzuki toshiya + + [gxvalid] Preparation to fix gcc4.6 compiler warnings. + + * src/gxvalid/gxvcommn.h (GXV_LOAD_TRACE_VARS): New macro to + conditionalize the variable which is only used for trace messages. + Automatically set by FT_DEBUG_LEVEL_TRACE. + (GXV_LOAD_UNUSED_VARS): New macro to conditionalize the loading of + unvalidated variables. Undefined by default to calm gcc4.6 warning. + (GXV_ValidatorRec.{min_gid,max_gid}): New variables to hold defined + GID ranges, for the comparison of GID ranges in different subtables. + +2011-06-08 Werner Lemberg + + [autofit] Remove unused structure member. + + * src/autofit/afhints.h (AF_SegmentRec): Remove `contour'. + * src/autofit/aflatin.c (af_latin_hints_compute_segments), + src/autofit/aflatin2.c (af_latin2_hints_compute_segments): Updated. + +2011-05-30 Werner Lemberg + + Fix g++ 4.6 compilation. + + * src/autofit/afhints.c (af_glyph_hints_dump_segments, + af_glyph_hints_dump_edges): Use cast. + +2011-05-30 Werner Lemberg + + Fix gcc 4.6 compiler warnings. + + * src/autofit/afcjk.c (af_cjk_metrics_init_blues): Use casts and + remove unused variables. + * src/autofit/aflatin.c (af_latin_hints_compute_edges): Comment out + `up_dir'. + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Use `height_org' + and `width_org' conditionalized. + +2011-05-28 suzuki toshiya + + [mac] Conditionalize the inclusion of `AvailabilityMacros.h'. + + The native SDK on earliest Mac OS X (10.0-10.1) did not have + `AvailabilityMacros.h'. To prevent the inclusion of missing + header file, ECANCELED (introduced in 10.2) in POSIX header + file is checked to detect the system version. + + * include/freetype/config/ftconfig.h: Conditionalize the + inclusion of `AvailabilityMacros.h'. + * builds/unix/ftconfig.in: Ditto. + * builds/vms/ftconfig.h: Ditto. + +2011-05-27 Werner Lemberg + + [autofit] Improve tracing of hinting process. + + * src/autofit/aflatin.c (af_latin_hint_edges): Add tracing message + `ADJUST'. + +2011-05-26 Werner Lemberg + + [autofit] Fix trace message. + + * src/autofit/aflatin.c (af_latin_hint_edges): Show correct value in + tracing message. + +2011-05-24 Daniel Zimmermann + + Reduce warnings for MS Visual Studio 2010. + + * src/autofit/afhints.c (af_glyph_hints_get_num_segments, + af_glyph_hints_get_segment_offset) [!FT_DEBUG_AUTOFIT]: Provide + return value. + * src/cff/cffgload.c (cff_slot_load): Add cast. + * src/truetype/ttobjs.c (tt_check_trickyness_sfnt_ids): Use proper + loop variable type. + +2011-05-16 suzuki toshiya + + Automake component `builds/unix/install-sh' is removed. + + * builds/unix/install-sh: Removed. It is not needed to + include repository, because autogen.sh installs it. + * builds/unix/.gitignore: Register install-sh. + +2011-05-12 suzuki toshiya + + [autofit] Make trace message for CJK bluezone more verbose. + +2011-05-08 Just Fill Bugs + suzuki toshiya + + [autofit] Add bluezones for CJK Ideographs. + + To remove extremas of vertical strokes of CJK Ideographs at + low resolution and make the top and bottom horizontal stems + aligned, bluezones for CJK Ideographs are calculated from + sample glyphs. At present, vertical bluezones (bluezones + to align vertical stems) are disabled by default. For detail, see + http://lists.gnu.org/archive/html/freetype-devel/2011-04/msg00070.html + http://lists.gnu.org/archive/html/freetype-devel/2011-04/msg00092.html + http://lists.gnu.org/archive/html/freetype-devel/2011-05/msg00001.html + + * include/freetype/internal/fttrace.h: New trace component `afcjk'. + * src/autofit/afcjk.h (AF_CJK{Blue,Axis,Metric}Rec): Add CJK version + for AF_Latin{Blue,Axis,Metric}Rec. + (af_cjk_metrics_check_digits): Ditto, shared with Indic module. + (af_cjk_metrics_init_widths): Ditto. + (af_cjk_metrics_init): Take AF_CJKMetric instead of AF_LatinMetric. + (af_cjk_metrics_scale): Ditto (declaration). + (af_cjk_hints_init): Ditto (declaration). + (af_cjk_hints_apply): Ditto (declaration). + * src/autofit/afcjk.c (af_cjk_metrics_scale): Ditto (body). + (af_cjk_hints_init): Ditto (body). + (af_cjk_hints_apply): Ditto (body). + (af_cjk_metrics_init_widths): Duplicate af_latin_metrics_init_widths. + (af_cjk_metrics_check_digits): Duplicate af_latin_metrics_check_digits. + (af_cjk_metrics_init): Call CJK bluezone initializer. + (af_cjk_metrics_scale_dim): Add code to scale bluezones. + (af_cjk_hints_compute_blue_edges): New function, CJK version of + af_latin_hints_compute_blue_edges. + (af_cjk_metrics_init_blues): New function, CJK version of + af_latin_metrics_init_blues. + (af_cjk_hints_edges): Add code to align the edge stems to blue zones. + + * src/autofit/afindic.c (af_indic_metrics_init): Take AF_CJKMetric + instead of AF_LatinMetric, and initialize as af_cjk_metrics_init. + However bluezones are not initialized. + (af_indic_metrics_scale): Take AF_CJKMetric instead of AF_LatinMetric. + (af_indic_hints_init): Ditto. + (af_indic_hints_apply): Ditto. + + * docs/CHANGES: Note about CJK bluezone support. + +2011-05-06 Werner Lemberg + + [autofit] Remove unused struct member. + + * src/autofit/aflatin.h (AF_LatinAxis): Remove `control_overshoot'. + +2011-05-04 Werner Lemberg + + * src/autofit/aflatin.c (af_latin_metrics_scale_dim): Simplify. + +2011-05-01 Just Fill Bugs + Werner Lemberg + + [autofit] Add more debugging functions. + + * src/autofit/afhints.c (af_glyph_hints_get_num_segments, + af_glyph_hints_get_segment_offset): New functions. + +2011-05-01 suzuki toshiya + + Add new option `--disable-mmap' to configure script. + + * builds/unix/configure.raw: New option `--disable-mmap' + is added. It is for the developers to simulate the systems + without mmap() (like 4.3BSD, minix etc) on POSIX systems. + +2011-04-30 suzuki toshiya + + [truetype] Always recalculate the sfnt table checksum. + + * src/truetype/ttobjs.c (tt_get_sfnt_checksum): Recalculate + the sfnt table checksum even if non-zero value is written in + the TrueType font header. Some bad PDF generators write + wrong values. For details see examples and benchmark tests + of the latency by recalculation: + http://lists.gnu.org/archive/html/freetype-devel/2011-04/msg00091.html + http://lists.gnu.org/archive/html/freetype-devel/2011-04/msg00096.html + +2011-04-30 suzuki toshiya + + [truetype] Register a set of tricky fonts, NEC FA family. + + * src/truetype/ttobjs.c (tt_check_trickyness_sfnt_ids): + Add 8 checksum sets for NEC FA family. For the tricky fonts + without some tables (e.g. NEC FA fonts lack cvt table), + extra check is added to assure that a zero-length table in the + registry is not included in the font. + +2011-04-29 suzuki toshiya + + [truetype] Fix a bug in the sfnt table checksum getter. + + * src/truetype/ttobjs.c (tt_get_sfnt_checksum): Check the + return value of face->goto_table() correctly. + +2011-04-28 Werner Lemberg + + [autofit] Improve tracing messages. + + * src/autofit/aflatin.c (af_latin_metrics_init_blues, + af_latin_align_linked_edge, af_latin_hint_edges): Do it. + +2011-04-25 Kan-Ru Chen + + [truetype] Always check the checksum to identify tricky fonts. + + Because some PDF generators mangle the family name badly, + the trickyness check by the checksum should be invoked always. + For sample PDF, see + http://lists.gnu.org/archive/html/freetype-devel/2011-04/msg00073.html + + * src/truetype/ttobjs.c (tt_check_trickyness): Even when + tt_check_trickyness_family() finds no trickyness, + tt_check_trickyness_sfnt_ids() is invoked. + +2011-04-22 suzuki toshiya + + [autofit] Add more Indic scripts with hanging baseline. + + * src/autofit/afindic.c (af_indic_uniranges): Tibetan, Limbu, + Sundanese, Meetei Mayak, Syloti Nagri and Sharada scripts are + added. + +2011-04-21 Behdad Esfahbod + + Always ignore global advance. + + This makes FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH redundant, + deprecated, and ignored. The new behavior is what every major user + of FreeType has been requesting. Global advance is broken in many + CJK fonts. Just ignoring it by default makes most sense. + + * src/truetype/ttdriver.c (tt_get_advances), + src/truetype/ttgload.c (TT_Get_HMetrics, TT_Get_VMetrics, + tt_get_metrics, compute_glyph_metrics, TT_Load_Glyph), + src/truetype/ttgload.h: Implement it. + + * docs/CHANGES: Updated. + +2011-04-21 rainy6144 + + [autofit] Blur CJK stems if too many to preserve their gaps. + + When there are too many stems to preserve their gaps in the + rasterization of CJK Ideographs at a low resolution, blur the + stems instead of showing clumped stems. See + http://lists.gnu.org/archive/html/freetype-devel/2011-02/msg00011.html + http://lists.gnu.org/archive/html/freetype-devel/2011-04/msg00046.html + for details. + + * src/autofit/afcjk.c (af_cjk_hint_edges): Store the position of + the previous stem by `has_last_stem' and `last_stem_pos', and skip + a stem if the current and previous stem are too near to preserve + the gap. + +2011-04-18 Werner Lemberg + + Integrate autofitter debugging stuff. + + * devel/ftoption.h, include/freetype/config/ftoption.h + (FT_DEBUG_AUTOFIT): New macro. + + * include/freetype/internal/fttrace.h: Add trace components for + autofitter. + + * src/autofit/aftypes.h (AF_LOG): Removed. + (_af_debug): Removed. + + * src/autofit/*: s/AF_DEBUG/FT_DEBUG_AUTOFIT/. + s/AF_LOG/FT_TRACE5/. + Define FT_COMPONENT where necessary. + +2011-04-18 Werner Lemberg + + Synchronize config files. + + * builds/unix/ftconfig.in: Copy missing assembler routines from + include/freetype/config/ftconfig.h. + +2011-04-13 Werner Lemberg + + Fix Savannah bug #33047. + + Patch submitted by anonymous reporter. + + * src/psaux/psobjs.c (ps_table_add): Use FT_PtrDist for pointer + difference. + +2011-04-11 Kan-Ru Chen + + Fix reading of signed integers from files on 64bit platforms. + + Previously, signed integers were converted to unsigned integers, but + this can fail because of sign extension. For example, 0xa344a1eb + becomes 0xffffffffa344a1eb. + + We now do the reverse which is always correct because the integer + size is the same during the cast from unsigned to signed. + + * include/freetype/internal/ftstream.h, src/base/ftstream.c + (FT_Stream_Get*): Replace with... + (FT_Stream_GetU*): Functions which read unsigned integers. + Update all macros accordingly. + + * src/gzip/ftgzip.c (ft_gzip_get_uncompressed_size): Updated. + +2011-04-07 Werner Lemberg + + Update Unicode ranges for CJK autofitter; in particular, add Hangul. + + * src/autofit/afcjk.c (af_cjk_uniranges): Update to Unicode 6.0. + +2011-04-04 Werner Lemberg + + Fix formatting of autofit debug dumps. + + * src/autofit/afhints.c (af_glyph_hints_dump_points, + af_glyph_hints_dump_segments, af_glyph_hints_dump_edges): Adjust + column widths. + +2011-03-30 Werner Lemberg + + * src/autofit/aftypes.h (AF_OutlineRec): Removed, unused. + +2011-03-24 Werner Lemberg + + * src/cff/cfftypes.h (CFF_MAX_CID_FONTS): Increase to 256. + This limit is given on p. 37 of Adobe Technical Note #5014. + +2011-03-23 Werner Lemberg + + * src/truetype/ttpload.c (tt_face_load_loca): Fix mismatch warning. + +2011-03-20 Werner Lemberg + + * src/sfnt/sfobjs.c (sfnt_open_font): Check number of TTC subfonts. + +2011-03-19 Werner Lemberg + + More C++ compilation fixes. + + * src/autofit/afhints.c (af_glyph_hints_dump_points, + af_glyph_hints_dump_segments, af_glyph_hints_dump_edges) + [__cplusplus]: Protect with `extern "C"'. + +2011-03-18 Werner Lemberg + + C++ compilation fixes. + + * src/autofit/aflatin.c (af_latin_hints_apply), src/autofit/afcjk.c + (af_cjk_hints_apply): Use cast for `dim'. + +2011-03-17 Alexei Podtelezhnikov + + A better fix for Savannah bug #32671. + + * src/smooth/ftgrays.c (gray_render_conic): Clean up code and + replace WHILE loop with a more natural DO-WHILE construct. + +2011-03-16 Werner Lemberg . + + * src/base/ftstroke.c (FT_StrokerRec): Remove unused `valid' field. + Suggested by Graham Asher. + +2011-03-09 Werner Lemberg + + Make FT_Sfnt_Table_Info return the number of SFNT tables. + + * src/sfnt/sfdriver.c (sfnt_table_info): Implement it. + * include/freetype/tttables.h: Update documentation. + * docs/CHANGES: Updated. + +2011-03-07 Bram Tassyns + + Fix Savannah bug #27988. + + * src/cff/cffobjs.c (remove_style): New function. + (cff_face_init): Use it to strip off the style part of the family + name. + +2011-03-07 Werner Lemberg + + * docs/CHANGES: Updated. + +2011-03-07 Alexei Podtelezhnikov + + Quick fix for Savannah bug #32671. + + This isn't the optimal solution yet, but it restores the previous + rendering quality (more or less). + + * src/smooth/ftgrays.c (gray_render_conic): Do more splitting. + +2011-03-06 Werner Lemberg + + Fix autohinting fallback. + + * src/base/ftobjs.c (FT_Load_Glyph): Assure that we only check TTFs, + ignoring CFF-based OTFs. + +2011-02-27 Werner Lemberg + + Add AF_CONFIG_OPTION_USE_WARPER to control the autofit warper. + + * devel/ftoption.h, include/freetype/config/ftoption.h + (AF_CONFIG_OPTION_USE_WARPER): New macro. + * src/autofit/aftypes.h (AF_USE_WARPER): Remove. + + * src/autofit/*: s/AF_USE_WARPER/AF_CONFIG_OPTION_USE_WARPER/. + + * src/autofit/afwarp.c [!AF_CONFIG_OPTION_USE_WARPER]: Replace dummy + variable assignment with a typedef. + +2011-02-26 Werner Lemberg + + [autofit] Slight simplifications. + + * src/autofit/aflatin.c (af_latin_hints_link_segments): Remove + test which always returns false. + (af_latin_hints_compute_blue_edges): Remove redundant assignment. + +2011-02-24 Werner Lemberg + + * docs/PROBLEMS: Mention rendering differences on different + platforms. + Suggested and worded by Jason Owen . + +2011-02-24 Werner Lemberg + + [autofit] Comment out unused code. + + * src/autofit/aflatin.c, src/autofit/aflatin2.c + (af_latin_hints_compute_edges): Do it. + +2011-02-24 Werner Lemberg + + * src/autofit/afhints.h (AF_GlyphHints): Remove unused field. + +2011-02-20 suzuki toshiya + + [cache] Fix an off-by-one bug in `FTC_Manager_RemoveFaceID'. + Found by , see detail in + + http://lists.gnu.org/archive/html/freetype/2011-01/msg00023.html + + * src/cache/ftccache.c (FTC_Cache_RemoveFaceID): Check the node + buckets[cache->p + cache->mask] too. + +2011-02-19 Kevin Kofler + + Fall back to autohinting if a TTF/OTF doesn't contain any bytecode. + This is Savannah patch #7471. + + * src/base/ftobjs.c (FT_Load_Glyph): Implement it. + +2011-02-19 John Tytgat + + [cff] Fix subset prefix removal. + This is Savannah patch #7465. + + * src/cff/cffobjs.c (remove_subset_prefix): Update length after + subset prefix removal. + +2011-02-13 Bradley Grainger + + Add inline assembly version of FT_MulFix for MSVC. + + * include/freetype/config/ftconfig.h: Ported the FT_MulFix_i386 + function from GNU inline assembly syntax (see #ifdef __GNUC__ block + above) to MASM syntax for Microsoft Visual C++. + +2011-02-13 Bradley Grainger + + Add project and solution files in Visual Studio 2010 format. + + * builds/win32/.gitignore: Ignore user-specific cache files. + * builds/win32/vc2010/: Add VS2010 project & solution files, created + by upgrading builds/win32/vc2008/freetype.vcproj. + * objs/.gitignore: Ignore Visual Studio output files. + +2011-02-01 Werner Lemberg + + * src/autofit/afdummy.c: Include `aferrors.h'. + Problem reported by Chris Liddell . + +2011-02-01 Werner Lemberg + + [cff] Ignore unknown operators in charstrings. + Patch suggested by Miles.Lau . + + * src/cff/cffgload.c (cff_decoder_parse_charstrings): Emit tracing + message for unknown operators and continue instead of exiting with a + syntax error. + +2011-02-01 Werner Lemberg + + [truetype] FT_LOAD_PEDANTIC now affects `prep' and `fpgm' also. + + * src/truetype/ttgload.c (tt_loader_init): Handle + `FT_LOAD_PEDANTIC'. + * src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep, + tt_size_init_bytecode, tt_size_ready_bytecode): New argument to + handle pedantic mode. + * src/truetype/ttobjs.h: Updated. + +2011-01-31 Werner Lemberg + + [truetype] Protect jump instructions against endless loops. + + * src/truetype/interp.c (DO_JROT, DO_JMPR, DO_JROF): Exit with error + if offset is zero. + +2011-01-31 Werner Lemberg + + [truetype] Improve handling of invalid references. + + * src/truetype/interp.c: Set even more TT_Err_Invalid_Reference + error codes only if pedantic hinting is active. At the same time, + try to provide sane values which hopefully allow useful + continuation. Exception to this is CALL and LOOPCALL – due to + possible stack corruption it is necessary to bail out. + +2011-01-31 Werner Lemberg + + [truetype] Improve handling of stack underflow. + + * src/truetype/ttinterp.c (TT_RunIns, Ins_FLIPPT, Ins_DELTAP, + Ins_DELTAC): Exit with error only if `pedantic_hinting' is set. + Otherwise, try to do something sane. + +2011-01-30 Werner Lemberg + + * src/sfnt/ttmtx.c (tt_face_load_hmtx): Fix tracing message. + +2011-01-30 LIU Sun-Liang + + [truetype]: Fix behaviour of MIAP for invalid arguments. + + * src/truetype/ttinterp.c (Ins_MIAP): Set reference points even in + case of error. + +2011-01-18 Werner Lemberg + + [truetype] Fix handling of MIRP instruction. + + Thanks to Greg Hitchcock who explained the issue. + + * src/truetype/ttinterp.c (Ins_MIRP): Replace a `>=' operator with + `>' since the description in the specification is incorrect. + This fixes, for example, glyph `two' in font `Helvetica Neue LT Com + 65 medium' at 15ppem. + +2011-01-15 suzuki toshiya + + Fix ARM assembly code in include/freetype/config/ftconfig.h. + + * include/freetype/config/ftconfig.h (FT_MulFix_arm): + Copy the maintained code from builds/unix/ftconfig.in. + Old GNU binutils could not accept the reduced syntax + `orr %0, %2, lsl #16'. Un-omitted syntax like RVCT, + `orr %0, %0, %2, lsl #16' is better. Reported by + Johnson Y. Yan. The bug report by Qt developers is + considered too. + + http://bugreports.qt.nokia.com/browse/QTBUG-6521 + +2011-01-15 Werner Lemberg + + [raster] Make bbox handling the same as with Microsoft's rasterizer. + + Right before B/W rasterizing, the bbox gets simply rounded to + integers. This fixes, for example, glyph `three' in font `Helvetica + Neue LT Com 65 Medium' at 11ppem. + + Thanks to Greg Hitchcock who explained this behaviour. + + * src/raster/ftrend1.c (ft_raster1_render): Implement it. + +2011-01-15 suzuki toshiya + + Copy -mcpu=* & -march=* options from CFLAGS to LDFLAGS. + + * builds/unix/configure.raw: Consider recent gcc-standard + flags to specify architecture in CFLAGS & LDFLAGS + harmonization. Requested by Savannah bug #32114, to + support multilib feature of BuildRoot SDK correctly. + +2011-01-15 suzuki toshiya + + Fix off-by-one bug in CFLAGS & LDFLAGS harmonizer. + + * builds/unix/configure.raw: Some important options that + included in CFLAGS but not in LDFLAGS are copied to + LDFLAGS, but the last option in CFLAGS was not checked. + +2011-01-13 Werner Lemberg + + [raster] Add undocumented drop-out rule to the other bbox side also. + + * src/raster/ftraster.c (Vertical_Sweep_Drop, + Horizontal_Sweep_Drop): Implement it. + +2011-01-13 Werner Lemberg + + [raster] Reduce jitter value. + + This catches a rendering problem with glyph `x' from Tahoma at + 10ppem. It seems that the increase of the precision in the change + from 2009-06-11 makes a larger jitter value unnecessary. + + * src/raster/ftraster.c (Set_High_Precision): Implement it. + +2011-01-13 Werner Lemberg + + [raster] Handle drop-outs at glyph borders according to Microsoft. + + If a drop-out rule would switch on a pixel outside of the glyph's + bounding box, use the right (or top) pixel instead. This is an + undocumented feature, but some fonts like `Helvetica Neue LT Com 65 + Medium' heavily rely on it. + + Thanks to Greg Hitchcock who explained this behaviour. + + * src/raster/ftraster.c (Vertical_Sweep_Drop, + Horizontal_Sweep_Drop): Implement it. + +2011-01-09 suzuki toshiya + + [cache] Fix Savannah bug #31923, patch drafted by Harsha. + + When a node comparator changes the cached nodes during the + search of a node matching with queried properties, the + pointers obtained before the function should be updated to + prevent the dereference to freed or reallocated nodes. + To minimize the rescan of the linked list, the update is + executed when the comparator notifies the change of cached + nodes. This change depends previous change: + 38b272ffbbdaae276d636aec4ef84af407d16181 + + * src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP): Rescan the + top node if the cached nodes are changed. + * src/cache/ftccache.c (FTC_Cache_Lookup): Ditto. + +2011-01-09 suzuki toshiya + + [cache] Notice if a cache query induced the node list change. + + Some node comparators (comparing the cache node contents and the + properties specified by the query) can flush the cache node to + prevent the cache inflation. The change may invalidate the pointers + to the node obtained before the node comparison, so it should be + noticed to the caller. The problem caused by the cache node + changing is reported by Harsha, see Savannah bug #31923. + + * src/cache/ftccache.h (FTC_Node_CompareFunc): Add new argument + `FT_Bool* list_changed' to indicate the change of the cached nodes + to the caller. + (FTC_CACHE_LOOKUP_CMP): Watch the change of the cached nodes by + `_list_changed'. + (FTC_CACHE_TRYLOOP_END): Take new macro argument `_list_changed' + and update it when `FTC_Manager_FlushN' flushes any nodes. + + * src/cache/ftccback.h (ftc_snode_compare): Updated to fit with new + FTC_Node_CompareFunc type. + (ftc_gnode_compare): Ditto. + + * src/cache/ftcbasic.c: Include FT_INTERNAL_OBJECTS_H to use + TRUE/FALSE macros. + (ftc_basic_gnode_compare_faceid): New argument `FT_Bool* + list_changed' to indicate the change of the cache nodes (anyway, it + is always FALSE). + + * src/cache/ftccmap.c: Include FT_INTERNAL_OBJECTS_H to use + TRUE/FALSE macros. + (ftc_cmap_node_compare): New argument `FT_Bool* list_changed' to + indicate the change of the cache nodes (anyway, it is always FALSE). + (ftc_cmap_node_remove_faceid): Ditto. + + * src/cache/ftccache.c (FTC_Cache_NewNode): Pass a NULL pointer to + `FTC_CACHE_TRYLOOP_END', because the result is not needed. + (FTC_Cache_Lookup): Watch the change of the cache nodes by + `list_changed'. + (FTC_Cache_RemoveFaceID): Ditto. + + * src/cache/ftcglyph.c: Include FT_INTERNAL_OBJECTS_H to use + TRUE/FALSE macros. + (ftc_gnode_compare): New argument `FT_Bool* list_changed' to + indicate the change of the cache nodes (anyway, it is always FALSE). + (FTC_GNode_Compare): New argument `FT_Bool* list_changed' to be + passed to `ftc_gnode_compare'. + * src/cache/ftcglyph.h (FTC_GNode_Compare): Ditto. + + * src/cache/ftcsbits.c (ftc_snode_compare): New argument `FT_Bool* + list_changed' to indicate the change of the cache nodes, anyway. It + is updated by `FTC_CACHE_TRYLOOP'. + (FTC_SNode_Compare): New argument `FT_Bool* list_changed' to be + passed to `ftc_snode_compare'. + * src/cache/ftcsbits.h (FTC_SNode_Compare): Ditto. + +2011-01-09 suzuki toshiya + + [cache] Fit `FTC_GNode_Compare' to `FTC_Node_CompareFunc'. + + * src/cache/ftcglyph.h (FTC_GNode_Compare): Add the 3rd + argument `FTC_Cache cache' to fit FTC_Node_CompareFunc + prototype. + * src/cache/ftcglyph.c (FTC_GNode_Compare): Ditto. Anyway, + `cache' is not used by its child `ftc_gnode_compare'. + +2011-01-09 suzuki toshiya + + [cache] Deduplicate the code to get the top node by a hash. + + There are several duplicated code fragments getting the top node + from a cache by a given hash, like: + + idx = hash & cache->mask; + if ( idx < cache->p ) + idx = hash & ( cache->mask * 2 + 1 ); + pnode = cache->buckets + idx; + + To remove duplication, a cpp-macro to do same work + `FTC_NODE__TOP_FOR_HASH' is introduced. For non-inlined + configuration, non-`ftc_get_top_node_for_hash' is also introduced. + + * src/cache/ftccache.h (FTC_NODE__TOP_FOR_HASH): Declare + and implement inlined version. + (FTC_CACHE_LOOKUP_CMP): Use `FTC_NODE__TOP_FOR_HASH'. + * src/cache/ftccache.c (ftc_get_top_node_for_hash): Non-inlined + version. + (ftc_node_hash_unlink): Use `FTC_NODE__TOP_FOR_HASH'. + (ftc_node_hash_link): Ditto. + (FTC_Cache_Lookup): Ditto. + +2011-01-09 suzuki toshiya + + [cache] inline-specific functions are conditionalized. + + * src/cache/ftcglyph.c (FTC_GNode_Compare): Conditionalized for + inlined configuration. This function is a thin wrapper of + `ftc_gnode_compare' for inlined `FTC_CACHE_LOOKUP_CMP' (see + `nodecmp' argument). Under non-inlined configuration, + `ftc_gnode_compare' is invoked by `FTC_Cache_Lookup', via + `FTC_Cache->clazz.node_compare'. + + * src/cache/ftcglyph.h (FTC_GNode_Compare): Ditto. + * src/cache/ftcsbits.c (FTC_SNode_Compare): Ditto, for + `ftc_snode_compare'. + * src/cache/ftcsbits.h (FTC_SNode_Compare): Ditto. + +2011-01-09 suzuki toshiya + + [cache] Correct a type mismatch under non-inlined config. + + * src/cache/ftcglyph.h (FTC_GCACHE_LOOKUP_CMP): `FTC_GCache_Lookup' + takes the node via a pointer `FTC_Node*', differently from cpp-macro + `FTC_CACHE_LOOKUP_CMP'. + +2011-01-06 suzuki toshiya + + Update Jamfile to include Bzip2 support. + + * Jamfile: Include src/bzip2 to project. + Comments for lzw, gzip, bzip2 are changed to clarify that + they are for compressed PCF fonts, not others. + (e.g. compressed BDF fonts are not supported yet) + +2011-01-05 suzuki toshiya + + Update Symbian project files to include Bzip2 support. + + Currently, it provides `FT_Stream_OpenBzip2' that returns + unimplemented error always, to prevent unresolved symbol + error for the applications designed for Unix systems. + + * builds/symbian/bld.inf: Include ftbzip2.h. + * builds/symbian/freetype.mmp: Include ftbzip2.c. + +2011-01-05 suzuki toshiya + + Update classic MacOS makefiles to include Bzip2 support. + + Currently, it provides `FT_Stream_OpenBzip2' that returns + unimplemented error always, to prevent unresolved symbol + error for the applications designed for Unix systems. + + * builds/mac/FreeType.m68k_cfm.make.txt: Include ftbzip2.c.o. + * builds/mac/FreeType.m68k_far.make.txt: Ditto. + * builds/mac/FreeType.ppc_carbon.make.txt: Include ftbzip2.c.x. + * builds/mac/FreeType.ppc_classic.make.txt: Ditto. + +2011-01-05 suzuki toshiya + + Update Amiga makefiles to include Bzip2 support. + + Currently, it provides `FT_Stream_OpenBzip2' that returns + unimplemented error always, to prevent unresolved symbol + error for the applications designed for Unix systems. + + * builds/amiga/makefile: Include bzip2.ppc.o built from ftbzip2.c. + * builds/amiga/makefile.os4: Include bzip2.o built from ftbzip2.c. + * builds/amiga/smakefile: Ditto. + +2011-01-05 suzuki toshiya + + Update pkg-config tools to reflect Bzip2 support. + + * builds/unix/freetype-config.in: Include `-lbz2' to + --libs output, if built with Bzip2 support. + * builds/unix/freetype2.in: Ditto. + +2011-01-05 suzuki toshiya + + * builds/unix/configure.raw: Remove `SYSTEM_BZ2LIB' macro. + + SYSTEM_ZLIB is used to switch the builtin zlib source + or system zlib source out of FreeType2. But ftbzip2 + module has no builtin bzip2 library and always requires + system bzip2 library. Thus SYSTEM_BZ2LIB is always yes, + it is not used. + +2011-01-03 Werner Lemberg + + */rules.mk: Handle `*pic.c' files. + +2010-12-31 Werner Lemberg + + * src/cff/cfftypes.h (CFF_MAX_CID_FONTS): Increase to 64. + Problem reported by Tom Bishop . + +2010-12-31 Werner Lemberg + + Improve bzip2 support. + + * include/freetype/ftmoderr.h: Add bzip2. + + * docs/INSTALL.ANY, docs/CHANGES: Updated. + + * src/pcf/README: Updated. + * include/freetype/internal/pcftypes.h: Obsolete, removed. + +2010-12-31 Joel Klinghed + + Add bzip2 compression support to handle *.pcf.bz2 files. + + * builds/unix/configure.raw: Test for libbz2 library. + + * devel/ftoption.h, include/freetype/config/ftoption.h + (FT_CONFIG_OPTION_USE_BZIP2): Define. + * include/freetype/config/ftheader.h (FT_BZIP2_H): Define. + + * include/freetype/ftbzip2.h: New file. + + * src/bzip2/*: New files. + + * src/pcf/pcf.h: s/gzip_/comp_/. + * src/pcf/pcfdrvr.c: Include FT_BZIP2_H. + s/gzip_/comp_/. + (PCF_Face_Init): Handle bzip2 compressed files. + + * docs/formats.txt, modules.cfg: Updated. + +2010-12-25 Harsha + + Apply Savannah patch #7422. + + If we encounter a space in a string then the sbit buffer is NULL, + height and width are 0s. So the check in ftc_snode_compare will + always pass for spaces (comparision with 255). Here the comments + above the condition are proper but the implementation is not. When + we create an snode I think it is the proper way to initialize the + width to 255 and then put a check for being equal to 255 in snode + compare function. + + * src/cache/ftcsbits.c (FTC_SNode_New): Initialize sbit widths with + value 255. + (ftc_snode_compare): Fix condition. + +2010-12-13 Werner Lemberg + + Fix parameter handling of `FT_Set_Renderer'. + Reported by Kirill Tishin . + + * src/base/ftobjs.c (FT_Set_Renderer): Increment `parameters'. + +2010-12-09 Werner Lemberg + + [cff] Allow `hlineto' and `vlineto' without arguments. + + We simply ignore such instructions. This is invalid, but it doesn't + harm; and indeed, there exist such subsetted fonts in PDFs. + + Reported by Albert Astals Cid . + + * src/cff/cffgload.c (cff_decoder_parse_charstrings) + [cff_op_hlineto]: Ignore instruction if there aren't any arguments + on the stack. + +2010-11-28 Werner Lemberg + + * Version 2.4.4 released. + ========================= + + + Tag sources with `VER-2-4-4'. + + * docs/CHANGES: Updated. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.4.4 + + * README, Jamfile (RefDoc), + builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, + builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj, + builds/win32/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.4.3/2.4.4/, s/243/244/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 4. + + * builds/unix/configure.raw (version_info): Set to 12:2:6. + +2010-11-28 Alexei Podtelezhnikov + + [ftsmooth]: Minor code simplification. + + * src/smooth/ftgrays (gray_render_cubic): Do only one comparison + instead of two. + +2010-11-26 Johnson Y. Yan + + [truetype] Better multi-threading support. + + * src/truetype/ttinterp.c (TT_Load_Context): Reset glyph zone + references. + +2010-11-23 John Tytgat + + * src/psaux/t1decode.c (t1_decoder_parse_charstring): Expand + start_point, check_points, add_point, add_point1, close_contour + macros. + Remove add_contour macro. + Return error code from t1_builder_start_point and + t1_builder_check_points when there was one (instead of returning 0). + +2010-11-22 suzuki toshiya + + [truetype] Identify the tricky fonts by cvt/fpgm/prep checksums. + Some Latin TrueType fonts are still expected to be unhinted. + Fix Savannah bug #31645. + + * src/truetype/ttobjs.c (tt_check_trickyness): Divided to... + (tt_check_trickyness_family): this checking family name, and + (tt_check_trickyness_sfnt_ids): this checking cvt/fpgm/prep. + (tt_get_sfnt_checksum): Function to retrieve the sfnt checksum + for specified subtable even if cleared by lazy PDF generators. + (tt_synth_sfnt_checksum): Function to calculate the checksum. + +2010-11-18 Werner Lemberg + + [truetype] Fix `loca' handling for inconsistent number of glyphs. + Reported by Johnson Y. Yan . + + * src/truetype/ttpload.c (tt_face_load_loca): While sanitizing, + handle case where `loca' is the last table in the font. + +2010-11-18 Werner Lemberg + + [sfnt] Ignore all errors while loading `OS/2' table. + Suggested by Johnson Y. Yan . + + * src/sfnt/sfobjs.c (sfnt_load_face): Do it. + +2010-11-18 Johnson Y. Yan + + [type1] Fix matrix normalization. + + * src/type1/t1load.c (parse_font_matrix): Handle sign of scaling + factor. + +2010-11-18 Werner Lemberg + + [type1] Improve guard against malformed data. + Based on a patch submitted by Johnson Y. Yan + + + * src/type1/t1load.c (read_binary_data): Check `size'. + +2010-11-17 Werner Lemberg + + [sfnt] While tracing, output table checksums also. + + * src/sfnt/ttload.c (tt_face_load_font_dir): Do it. + +2010-11-04 suzuki toshiya + + [UVS] Fix `find_variant_selector_charmap', Savannah bug #31545. + + Since 2010-07-04, `find_variant_selector_charmap' returns + the first cmap subtable always under rogue-compatible + configuration, it causes NULL pointer dereference and + make UVS-related functions crashed. + + * src/base/ftobjs.c (Fix find_variant_selector_charmap): + Returns UVS cmap correctly. + +2010-11-01 Alexei Podtelezhnikov + + [ftsmooth] Improve rendering. + + * src/smooth/ftsmooth.c (gray_render_conic): Since version 2.4.3, + cubic deviations have been estimated _after_ UPSCALE, whereas + conic ones have been evaluated _before_ UPSCALE, which produces + inferior rendering results. Fix this. + Partially undo change from 2010-10-15 by using ONE_PIXEL/4; this has + been tested with demo images sent to the mailing list. See + + http://lists.gnu.org/archive/html/freetype-devel/2010-10/msg00055.html + + and later mails in this thread. + +2010-10-28 Werner Lemberg + + [ftraster] Minor fixes. + + Reported by Tom Bishop . + + * src/raster/ftraster.c (ULong): Remove unused typedef. + (TWorker): Remove unused variable `precision_mask'. + +2010-10-28 Werner Lemberg + + [ftraster] Fix rendering. + + Problem reported by Tom Bishop ; see + thread starting with + + http://lists.gnu.org/archive/html/freetype/2010-10/msg00049.html + + * src/raster/ftraster.c (Line_Up): Replace FMulDiv with SMulDiv + since the involved multiplication exceeds 32 bits. + +2010-10-25 suzuki toshiya + + Revert a change of `_idx' type in `FTC_CACHE_LOOKUP_CMP'. + + * src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP): Revert + the type of `_idx' from FT_PtrDist (by previous change) + to original FT_UFast, to match with FT_CacheRec. + +2010-10-24 suzuki toshiya + + [cache] Change the hash types to FT_PtrDist. + + On LLP64 platforms (e.g. Win64), FT_ULong (32-bit) + variables are inappropriate to calculate hash values + from the memory address (64-bit). The hash variables + are extended from FT_ULong to FT_PtrDist and new + hashing macro functions are introduced. The hash + values on 16-bit memory platforms are changed, but + ILP32 and LP64 are not changed. The hash value in + the cache subsystem is not reverted to the memory + address, so using signed type FT_PtrDist is safe. + + * src/cache/ftccache.h (_FTC_FACE_ID_HASH): New hash + function to replace `FTC_FACE_ID_HASH' for portability. + * src/cache/ftcmanag.h (FTC_SCALER_HASH): Replace + `FTC_FACE_ID_HASH' by `_FTC_FACE_ID_HASH'. + * src/cache/ftccmap.c (FTC_CMAP_HASH): Ditto. + + * src/cache/ftccache.h (FTC_NodeRec): The type of the + member `hash' is changed from FT_UInt32 to FT_PtrDist. + + * src/cache/ftccache.h (FTC_Cache_Lookup): The type of the + argument `hash' is changed from FT_UInt32 to FT_PtrDist. + (FTC_Cache_NewNode): Ditto. + * src/cache/ftccache.c (ftc_cache_add): Ditto. + (FTC_Cache_Lookup): Ditto. (FTC_Cache_NewNode): Ditto. + * src/cache/ftcglyph.h (FTC_GCache_Lookup): Ditto. + * src/cache/ftcglyph.c (FTC_GCache_Lookup): Ditto. + + * src/cache/ftcbasic.c (FTC_ImageCache_Lookup): The type + of the internal variable `hash' is changed to FT_PtrDist + from FT_UInt32. (FTC_ImageCache_LookupScaler): Ditto. + (FTC_SBitCache_Lookup): Ditto. + (FTC_SBitCache_LookupScaler): Ditto. + * src/cache/ftccmap.c (FTC_CMapCache_Lookup): Ditto. + * src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP): Ditto. + Also the type of the internal variable `_idx' is changed to + FT_PtrDist from FT_UFast for better pointer calculation. + +2010-10-24 suzuki toshiya + + [cache] Hide internal macros incompatible with LLP64. + + `FT_POINTER_TO_ULONG', `FTC_FACE_ID_HASH', and + `FTC_IMAGE_TYPE_HASH' are enclosed by + FT_CONFIG_OPTION_OLD_INTERNALS and hidden from + normal clients. + + For the history of these macros, see the investigation: + http://lists.gnu.org/archive/html/freetype/2010-10/msg00022.html + +2010-10-24 suzuki toshiya + + Change the type of `FT_MEM_VAL' from FT_ULong to FT_PtrDist. + + On LLP64 platforms (e.g. Win64), unsigned long (32-bit) + cannot cover the memory address (64-bit). `FT_MEM_VAL' is + used for hashing only and not dereferred, so using signed + type FT_PtrDist is safe. + + * src/base/ftdbgmem.c (FT_MEM_VAL): Change the type of the + return value from FT_ULong to FT_PtrDist. + (ft_mem_table_resize): The type of hash is changed to + FT_PtrDist. (ft_mem_table_get_nodep): Ditto. + +2010-10-24 suzuki toshiya + + Replace "%lx" for memory address by "%p", LLP64 platforms. + + On LLP64 platforms (e.g. Win64), long (32-bit) cannot cover + the memory address (64-bit). Also the casts from the pointer + type to long int should be removed to preserve the address + correctly. + + * src/raster/ftraster.c (New_Profile): Replace "%lx" by "%p". + (End_Profile) Ditto. + * src/truetype/ttinterp.c (Init_Context): Ditto. + +2010-10-15 Alexei Podtelezhnikov + + Fix thinko in spline flattening. + + FT_MAX_CURVE_DEVIATION is dependent on the value of ONE_PIXEL. + + * src/smooth/ftgrays.c (FT_MAX_CURVE_DEVIATION): Remove it and + replace it everywhere with ONE_PIXEL/8. + +2010-10-13 suzuki toshiya + + [raccess] Skip unrequired resource access rules by Darwin VFS. + + When a resource fork access rule by Darwin VFS could open the + resource fork but no font is found in it, the rest of rules + by Darwin VFS are skipped. It reduces the warnings of the + deprecated resource fork access method by recent Darwin kernel. + Fix MacPorts ticket #18859: + http://trac.macports.org/ticket/18859 + + * src/base/ftobjs.c (load_face_in_embedded_rfork): + When `FT_Stream_New' returns FT_Err_Cannot_Open_Stream, it + means that the file is possible to be `fopen'-ed but zero-sized. + Also there is a case that the resource fork is not zero-sized, + but no supported font exists in it. If a rule by Darwin VFS + falls into such cases, there is no need to try other Darwin VFS + rules anymore. Such cases are marked by vfs_rfork_has_no_font. + If it is TRUE, the Darwin VFS rules are skipped. + +2010-10-13 suzuki toshiya + + [raccess] Grouping resource access rules based on Darwin VFS. + + MacOS X/Darwin kernel supports a few tricky methods to access + a resource fork via ANSI C or POSIX interface. Current resource + fork accessor tries all possible methods to support all kernels. + But if a method could open a resource fork but no font is found, + there is no need to try other methods older than tested method. + To determine whether the rule index is for Darwin VFS, a local + function `ftrfork.c::raccess_rule_by_darwin_vfs' is introduced. + To use this function in ftobjs.c etc but it should be inlined, + it is exposed by ftbase.h. + + * src/base/ftrfork.c (FT_RFork_Rule): New enum type to identify + the rules to access the resource fork. + (raccess_guess_rec): New structure to bind the rule function and + rule enum type. + (FT_Raccess_Guess): The list of the rule functions is replaced by + (raccess_guess_table): This. This is exposed to be used by other + intra module functions. + (raccess_rule_by_darwin_vfs): A function to return a boolean + if the rule specified by the rule index is based on Darwin VFS. + +2010-10-13 suzuki toshiya + + Prevent to open a FT_Stream for zero-sized file on non-Unix. + + builds/unix/ftsystem.c prevents to open an useless stream from + zero-sized file and returns FT_Err_Cannot_Open_Stream, but the + stream drivers for ANSI C, Amiga and VMS return useless streams. + For cross-platform consistency, all stream drivers should act + same. + + * src/base/ftsystem.c (FT_Stream_Open): If the size of the opened + file is zero, FT_Err_Cannot_Open_Stream is returned. + * builds/amiga/src/base/ftsystem.c (FT_Stream_Open): Ditto. + * src/vms/ftsystem.c (FT_Stream_Open): Ditto. + +2010-10-12 Werner Lemberg + + Fix Savannah bug #31310. + + * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Protect against + invalid `runcnt' values. + +2010-10-08 Chris Liddell + + Fix Savannah bug #31275. + + * src/sfnt/ttpost.c: Include FT_INTERNAL_DEBUG_H. + +2010-10-06 Werner Lemberg + + [truetype] Improve error handling of `SHZ' bytecode instruction. + Problem reported by Chris Evans . + + * src/truetype/ttinterp.c (Ins_SHZ): Check `last_point'. + +2010-10-05 Werner Lemberg + + Fix Savannah bug #31253. + Patch submitted by an anonymous reporter. + + * configure: Use `awk' instead of `sed' to manipulate output of `ls + -id'. + +2010-10-03 Werner Lemberg + + * Version 2.4.3 released. + ========================= + + + Tag sources with `VER-2-4-3'. + + * docs/CHANGES: Updated. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.4.3 + + * README, Jamfile (RefDoc), + builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, + builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj, + builds/win32/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.4.2/2.4.3/, s/242/243/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 3. + + * builds/unix/configure.raw (version_info): Set to 12:1:6. + +2010-10-03 Werner Lemberg + + Avoid `configure' issues with symbolic links. + Based on a patch from Alexander Stohr . + + * configure: Compare directories using `ls -id'. + Check existence of `reference' subdirectory before creating it. + +2010-10-02 Werner Lemberg + + Fix Savannah bug #31088 (sort of). + + * src/sfnt/ttload.c (tt_face_load_maxp): Always allocate at least 64 + function entries. + +2010-10-02 Werner Lemberg + + [smooth] Fix splitting of cubics for negative values. + + Reported by Róbert Márki ; see + http://lists.gnu.org/archive/html/freetype/2010-09/msg00019.html. + + * src/smooth/ftgrays.c (gray_render_cubic): Fix thinko. + +2010-10-01 suzuki toshiya + + Fix Savannah bug #31040. + + * src/truetype/ttinterp.c (free_buffer_in_size): Remove. + (TT_RunIns): Updated. + +2010-09-20 suzuki toshiya + + [sfnt] Make error message filling NULL names less verbose. + + * src/sfnt/ttpost.c (load_format_20): Showing 1 summary message + when we fill `post' names by NULL, instead of per-entry message. + +2010-09-20 Graham Asher + David Bevan + + [smooth] Fix and improve spline flattening. + + This fixes the flattening of cubic, S-shaped curves and speeds up + the handling of both the conic and cubic arcs. + + See the discussions on the freetype-devel mailing list in late + August and September 2010 for details. + + * src/smooth/ftgrays.c (FT_MAX_CURVE_DEVIATION): New macro. + (TWorker): Remove `conic_level' and `cubic_level' elements. + (gray_render_conic): Simplify algorithm. + (gray_render_cubic): New algorithm; details are given in the code + comments. + (gray_convert_glyph): Remove heuristics. + +2010-09-19 Werner Lemberg + + Minor fixes. + + * src/cff/cffload.c (cff_charset_compute_cids): `charset->sids[i]' + is `FT_UShort'. + (cff_index_access_element): Don't use additions in comparison. + * src/sfnt/ttpost.c (load_format_20): Make `post_limit' of type + `FT_Long'. + Don't use additions in comparison. + Improve tracing messages. + (load_format_25, load_post_names): Make `post_limit' of type + `FT_Long'. + +2010-09-19 suzuki toshiya + + [cff] Truncate the element length at the end of the stream. + See Savannah bug #30975. + + * src/cff/cffload.c (cff_index_access_element): `off2', the offset + to the next element is truncated at the end of the stream to prevent + invalid I/O. As `off1', the offset to the requested element has + been checked by `FT_STREAM_SEEK', `off2' should be checked + similarly. + +2010-09-19 suzuki toshiya + + [cff] Ignore CID > 0xFFFFU. + See Savannah bug #30975. + + * src/cff/cffload.c (cff_charset_compute_cids): Ignore CID if + greater than 0xFFFFU. CFF font spec does not mention maximum CID in + the font, but PostScript and PDF spec define that maximum CID is + 0xFFFFU. + +2010-09-19 suzuki toshiya + + [cff] Make trace message in` cff_charset_load' verbose. + See Savannah bug #30975. + + * src/cff/cffload.c (cff_charset_load): Report the original `nleft' + and truncated `nleft'. + +2010-09-19 suzuki toshiya + + [cff] Correct `max_cid' from CID array length to max CID. + See Savannah bug #30975. + + * src/cff/cffload.c (cff_charset_compute_cids): Don't increment + max_cid after detecting max CID. The array CFF_Charset->cids is + allocated by max_cid + 1. + (cff_charset_cid_to_gindex): Permit CID is less than or equal to + CFF_Charset->max_cid. + * src/cff/cffobjs.c (cff_face_init): FT_Face->num_glyphs is + calculated as CFF_Charset->max_cid + 1. + +2010-09-19 suzuki toshiya + + [truetype] Sanitize the broken offsets in `loca'. + See Savannah bug #31040. + + * src/truetype/ttpload.c (tt_face_get_location): If `pos1', the + offset to the requested entry in `glyf' exceeds the end of the + table, return offset=0, length=0. If `pos2', the offset to the next + entry in `glyf' exceeds the end of the table, truncate the entry + length at the end of `glyf' table. + +2010-09-19 suzuki toshiya + + [sfnt] Prevent overrunning in `post' table parser. + See Savannah bug #31040. + + * src/sfnt/ttpost.c (load_post_names): Get the length of `post' + table and pass the limit of `post' table to `load_format_20' and + `load_format_25'. + (load_format_20): Stop the parsing when we reached at the limit of + `post' table. If more glyph names are required, they are filled by + NULL names. + +2010-09-17 suzuki toshiya + + [truetype] Don't duplicate size->twilight structure to be freed. + See Savannah bug #31040 for detail. + + * src/truetype/ttinterp.c (free_buffer_in_size): Don't duplicate + FT_GlyphZoneRec size->twilight to be freed. If duplicated, + `FT_FREE' erases the duplicated pointers only and leave original + pointers. They can cause the double-free crash when the burst + errors occur in TrueType interpreter and `free_buffer_in_size' is + invoked repeatedly. + +2010-09-15 Werner Lemberg + + Make bytecode debugging with FontForge work again. + + * src/truetype/ttinterp.c (TT_RunIns): Don't call + `free_buffer_in_size' in case of error if a debugger is active. + +2010-09-14 Werner Lemberg + + Improve tracing messages. + + * src/truetype/ttinterp.c (TT_RunIns): Improve wording of tracing + message. + * src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): Add + tracing message. + * src/truetype/ttgload.c (tt_loader_init): Add tracing message. + * src/cache/ftcsbits.c (ftc_snode_load): Emit tracing message if + glyph doesn't fit into a small bitmap container. + +2010-09-13 Werner Lemberg + + Fix minor issues reported by . + + * src/autofit/aflatin.c (af_latin_compute_stem_width): Remove + redundant conditional check. + * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Ditto. + * src/cff/cffload.c (cff_encoding_load): Remove conditional check + which always evaluates to `true'. + * src/pshinter/pshalgo.c (ps_glyph_interpolate_strong_points): + Ditto. + * src/truetype/ttinterp.c (Ins_IUP): Ditto. + * src/cid/cidgload.c (cid_slot_load_glyph): Don't check for NULL if + value is already dereferenced. + * src/winfonts/winfnt.c (FNT_Load_Glyph): Fix check of `face'. + +2010-08-31 suzuki toshiya + + Ignore the environmental setting of LIBTOOL. + Patch is suggested by Adrian Bunk, to prevent unexpected + reflection of environmental LIBTOOL. See: + http://savannah.nongnu.org/patch/?7290 + + * builds/unix/unix-cc.in: LIBTOOL is unconditionally set to + $(FT_LIBTOOL_DIR)/libtool. FT_LIBTOOL_DIR is set to $(BUILD_DIR) + by default. + * configure: When configured for the building out of source tee, + FT_LIBTOOL_DIR is set to $(OBJ_DIR). + +2010-08-31 suzuki toshiya + + [truetype] Decrease the trace level catching the interpreter error. + + * src/truetype/ttinterp.c (TT_RunIns): Decrease the trace level + showing the error when the interpreter returns with an error, + from` FT_TRACE7' to `FT_TRACE1'. + +2010-08-30 suzuki toshiya + + [truetype] Prevent bytecode reuse after the interpretation error. + + * src/truetype/ttinterp.c (free_buffer_in_size): New function to + free the buffer allocated during the interpretation of this glyph. + (TT_RunIns): Unset FT_Face->size->{cvt_ready,bytecode_ready} if + an error occurs in the bytecode interpretation. The interpretation + of invalid bytecode may break the function definitions and referring + them in later interpretation is danger. By unsetting these flags, + `fpgm' and `prep' tables are executed again in next interpretation. + + This fixes Savannah bug #30798, reported by Robert Święcki. + +2010-08-29 Werner Lemberg + + [ftraster] Pacify compiler. + + * src/raster/ftraster.c (ft_black_new) [_STANDALONE_]: `memory' is + not used. + +2010-08-29 Werner Lemberg + + [cff] Allow SIDs >= 65000. + + * src/cff/cffload.c (cff_charset_load): Fix change from 2009-03-20: + The threshold for SIDs is not applicable here. I misinterpreted the + `SID values 65000 and above are available for implementation use' + sentence in the CFF specification. + + Problem reported by Ivan Ninčić . + +2010-08-28 suzuki toshiya + + Force hinting when the font lacks its familyname. + + In Type42 or Type11 font embedded in PostScript & PDF, TrueType sfnt + stream may lack `name' table because they are not required. Hinting + for nameless fonts is safer for PDFs including embedded Chinese + fonts. Written by David Bevan, see: + + http://lists.gnu.org/archive/html/freetype-devel/2010-08/msg00021.html + http://lists.freedesktop.org/archives/poppler/2010-August/006310.html + + * src/truetype/ttobjs.c (tt_check_trickyness): If a NULL pointer by + nameless font is given, TRUE is returned to enable hinting. + +2010-08-28 suzuki toshiya + + Register yet another tricky TrueType font. + + * src/truetype/ttobjs.c (tt_check_trickyness): Add `HuaTianKaiTi?', + a Kaishu typeface paired with `HuaTianSongTi?' by Huatian + Information Industry. + +2010-08-17 Teijo Kinnunen + + Fix Savannah bug #30788. + + * src/cache/ftccache.c (FTC_Cache_Clear): Check `cache->buckets' for + NULL too. + +2010-08-10 Werner Lemberg + + Try to fix Savannah bug #30717 (and probably #30719 too). + + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Add another + overflow test for `width' and `height'. + +2010-08-06 Werner Lemberg + + * Version 2.4.2 released. + ========================= + + + Tag sources with `VER-2-4-2'. + + * docs/CHANGES: Updated. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.4.2 + + * README, Jamfile (RefDoc), + builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, + builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj, + builds/win32/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.4.1/2.4.2/, s/241/242/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 2. + + * builds/unix/configure.raw (version_info): Set to 12:0:6. + +2010-08-06 suzuki toshiya + + Fix Savannah bug #30648. + + * src/base/ftobjs.c (FT_Done_Library): Specify the order of font + drivers during the face closing process. Type42 faces should be + closed before TrueType faces, because a Type42 face refers to + another internal TrueType face which is created from sfnt[] array on + the memory. + +2010-08-06 Yuriy Kaminskiy + + [raster] Fix valgrind warning. + + * src/raster/ftraster.c (Decompose_Curve) : Access point[0] + only if we don't hit `limit'. + +2010-08-06 suzuki toshiya + + Fix Savannah bug #30658. + + * src/base/ftobjs.c (Mac_Read_POST_Resource): Check that the total + length of collected POST segments does not overrun the allocated + buffer. + +2010-08-06 Yuriy Kaminskiy + + Fix conditional usage of FT_MulFix_i386. + With -ansi flag, gcc does not define `i386', only `__i386__'. + + * include/freetype/config/ftconfig.h, builds/unix/ftconfig.in: + s/i386/__i386__/. + +2010-08-05 Werner Lemberg + + Fix Savannah bug #30657. + + * src/truetype/ttinterp.c (BOUNDSL): New macro. + Change `BOUNDS' to `BOUNDSL' where appropriate. + + * src/truetype/ttinterp.h (TT_ExecContextRec): Fix type of + `cvtSize'. + +2010-08-05 Werner Lemberg + + Fix Savannah bug #30656. + + * src/type42/t42parse.c (t42_parse_sfnts): Protect against negative + string_size. + Fix comparison. + +2010-08-05 suzuki toshiya + + [cff] Don't use any values in decoder after parsing error. + + * src/cff/cffgload.c (cff_slot_load): Skip the evaluations + of the values in decoder, if `cff_decoder_parse_charstrings' + returns any error. + +2010-08-04 Werner Lemberg + + Fix Savannah bug #30644. + + * src/base/ftstream.c (FT_Stream_EnterFrame): Fix comparison. + +2010-08-04 Werner Lemberg + + `make devel' fails if FT_CONFIG_OPTION_OLD_INTERNALS is set. + + * devel/ftoption.h: Synchronize with + include/freetype/config/ftoption.h. + +2010-08-04 suzuki toshiya + + [cff] Improve stack overflow test. + + * src/cff/cffgload.c (cff_decoder_parse_charstrings): Check stack + after execution of operations too. + +2010-07-18 Werner Lemberg + + Add reference counters and to FT_Library and FT_Face objects. + + * include/freetype/freetype.h (FT_Reference_Face): New function. + * include/freetype/ftmodapi.h (FT_Rererence_Library): New function. + + * include/freetype/internal/ftobjs.h (FT_Face_InternalRec, + FT_LibraryRec): New field `refcount'. + + * src/base/ftobjs.c (FT_Open_Face, FT_New_Library): Handle + `refcount'. + (FT_Reference_Face, FT_Reference_Library): Implement new functions. + (FT_Done_Face, FT_Done_Library): Handle `refcount'. + + * docs/CHANGES: Updated. + +2010-07-18 Werner Lemberg + + * Version 2.4.1 released. + ========================= + + + Tag sources with `VER-2-4-1'. + + * docs/CHANGES: Updated. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.4.1. + + * README, Jamfile (RefDoc), + builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, + builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj, + builds/win32/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.4.0/2.4.1/, s/240/241/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 1. + + * builds/unix/configure.raw (version_info): Set to 11:1:5. + +2010-07-17 Werner Lemberg + + [cff] Final try to fix `hintmask' and `cntrmask' limit check. + + Problem reported by Tobias Wolf . + + * src/cff/cffgload.c (cff_decoder_parse_charstrings) + : Sigh. I'm apparently too silly to fix this + correctly in less than three tries. + +2010-07-12 Werner Lemberg + + * Version 2.4.0 released. + ========================= + + + Tag sources with `VER-2-4-0'. + + * docs/CHANGES: Updated. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.4.0. + + * README, Jamfile (RefDoc), + builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, + builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj, + builds/win32/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.3.12/2.4.0/, s/2312/240/. + + * include/freetype/freetype.h (FREETYPE_MINOR): Set to 4. + (FREETYPE_PATCH): Set to 0. + + * builds/unix/configure.raw (version_info): Set to 11:0:5. + +2010-07-12 Werner Lemberg + + Remove C++ warnings. + + */*: Initialize pointers where necessary to make g++ happy. + +2010-07-12 malc + Richard Henderson + + Fix type-punning issues with C++. + + * include/freetype/internal/ftmemory.h (FT_ASSIGNP) [__cplusplus]: + Emulate a `typeof' operator with an inline template which uses + `static_cast'. + +2010-07-11 Werner Lemberg + + Fix C++ compilation issue. + + * src/tools/apinames.c (names_dump) : Fix + type of `dot' variable. + +2010-07-10 suzuki toshiya + + Fix another case reported in Savannah bug #30373. + Permit a face for Type1, Type42 and CFF without charmap, + patch by Tor Andersson. + + * src/type1/t1objs.c (T1_Face_Init): Reset the error if it + is FT_Err_No_Unicode_Glyph_Name. + * src/type42/t42objs.c (T42_Face_Init): Ditto. + * src/cff/cffobjs.c (cff_face_init): Ditto. + +2010-07-09 suzuki toshiya + + Use defined macros to set {platform,encoding}_id. + + * src/bdf/bdfdrivr.c: Include ttnameid.h and use macros to + set charmap.{platfom,encoding}_id. + * src/pcf/pcfdrivr.c: Ditto. + * src/winfonts/winfnt.c: Ditto. + * src/type1/t1objs.c: Ditto. + * src/type42/t42objs.c: Ditto. + * src/cff/cffobjs.c: Ditto. + * src/pfr/pfrobjs.c: Ditto. + +2010-07-09 suzuki toshiya + + Fix Savannah bug #30373. + Too serious check of errors by `FT_CMap_New' since 2010-07-04 + is fixed. Reported by Tor Andersson. + + * include/freetype/fterrdef.h + (PSnames_Err_No_Unicode_Glyph_Name): New error code to + indicate the Unicode charmap synthesis failed because + no Unicode glyph name is found. + + * src/psnames/psmodule.c (ps_unicodes_init): Return + PSnames_Err_No_Unicode_Glyph_Name when no Unicode glyph name + is found in the font. + * src/cff/cffcmap.c (cff_cmap_unicode_init): Return + CFF_Err_No_Unicode_Glyph_Name when no SID is available. + + * src/type1/t1objs.c (T1_Face_Init): Proceed if `FT_CMap_New' + is failed by the lack of Unicode glyph name. + * src/type42/t42objs.c (T42_Face_Init): Ditto. + * src/cff/cffobjs.c (cff_face_init): Ditto. + +2010-07-09 Ken Sharp + + Make ftraster.c compile in stand-alone mode with MSVC compiler. + + * src/raster/ftmisc.h (FT_Int64) [_WIN32, _WIN64]: Fix typedef + since there is no `inttypes.h' for MSVC. + +2010-07-08 Werner Lemberg + + Fix Savannah bug #30361. + + * src/truetype/ttinterp.c (Ins_IUP): Fix bounds check. + +2010-07-06 Werner Lemberg + + Pacify compiler. + + * src/cff/cffload.c (cff_index_get_pointers): Initialize + `new_bytes'. + +2010-07-05 Eugene A. Shatokhin + + Fix Savannah bug #27648. + + * src/base/ftobjs.c (ft_remove_renderer, FT_Add_Module): Call + `raster_done' only if we have an outline glyph format. + +2010-07-05 Werner Lemberg + + Fix Savannah bug #30030. + + * builds/win32/*/freetype.vcproj: Add ftxf86.c. + +2010-07-05 Werner Lemberg + + [cff] Next try to fix `hintmask' and `cntrmask' limit check. + + Problem reported by malc . + + * src/cff/cffgload.c (cff_decoder_parse_charstrings) + : It is possible that there is just a single byte + after the `hintmask' or `cntrmask', e.g., a `return' instruction. + +2010-07-04 suzuki toshiya + + Restrict the number of the charmaps in a rogue-compatible mode. + Fix for Savannah bug #30059. + + * src/cache/ftccmap.c (FTC_CMapCache_Lookup): Replace `16' the + minimum character code passed by a legacy rogue client by... + * include/freetype/config/ftoption.h (FT_MAX_CHARMAP_CACHEABLE): + This. It is undefined when FT_CONFIG_OPTION_OLD_INTERNALS is + undefined (thus the rogue client compatibility is not required). + + * src/cff/cffobjs.c (cff_face_init): Abort the automatic + selection or synthesis of Unicode cmap subtable when the charmap + index exceeds FT_MAX_CHARMAP_CACHEABLE. + * src/sfnt/ttcmap.c (tt_face_build_cmaps): Issue error message + when the charmap index exceeds FT_MAX_CHARMAP_CACHEABLE. + + * src/base/ftobjs.c (find_unicode_charmap): When Unicode charmap + is found after FT_MAX_CHARMAP_CACHEABLE, ignore it and search + earlier one. + (find_variant_selector_charmap): When UVS charmap is found after + FT_MAX_CHARMAP_CACHEABLE, ignore it and search earlier one. + (FT_Select_Charmap): When a charmap matching with requested + encoding but after FT_MAX_CHARMAP_CACHEABLE, ignore and search + earlier one. + (FT_Set_Charmap): When a charmap matching with requested + charmap but after FT_MAX_CHARMAP_CACHEABLE, ignore and search + earlier one. + (FT_Get_Charmap_Index): When a requested charmap is found + after FT_MAX_CHARMAP_CACHEABLE, return the inverted charmap + index. + +2010-07-04 Werner Lemberg + + TrueType hinting is no longer patented. + + * include/freetype/config/ftoption.h, devel/ftoption.h + (TT_CONFIG_OPTION_BYTECODE_INTERPRETER): Define. + (TT_CONFIG_OPTION_UNPATENTED_HINTING): Undefine. + + * docs/CHANGES, docs/INSTALL, include/freetype/freetype.h: Updated. + * docs/TRUETYPE, docs/PATENTS: Removed. + +2010-07-04 suzuki toshiya + + Check error value by `FT_CMap_New'. + + * src/cff/cffobjs.c (cff_face_init): Check error value by + `FT_CMap_New'. + * src/pfr/pfrobjs.c (pfr_face_init): Ditto. + * src/type1/t1jobjs.c (T1_Face_Init): Ditto. + * src/type42/t42jobjs.c (T42_Face_Init): Ditto. + +2010-07-03 Werner Lemberg + + Make ftgrays.c compile stand-alone again. + + * src/smooth/ftgrays.c [_STANDALONE_]: Include `stddef.h'. + (FT_INT_MAX, FT_PtrDist)[_STANDALONE_]: Define. + +2010-07-02 suzuki toshiya + + Additional fix for Savannah bug #30306. + + * src/base/ftobjs.c (Mac_Read_POST_Resource): If the type of the + POST fragment is 0, the segment is completely ignored. The declared + length of the segment is not cared at all. According to Adobe + Technical Note 5040, type 0 segment is a comment only and should not + be loaded for the interpreter. Reported by Robert Święcki. + +2010-07-01 Werner Lemberg + + [truetype] Protect against code range underflow. + + * src/truetype/ttinterp.c (DO_JROT, DO_JMPR, DO_JROF): Don't allow + negative IP values. + +2010-07-01 Werner Lemberg + + [truetype] Add rudimentary tracing for bytecode instructions. + + * src/truetype/ttinterp.c (opcode_name) [FT_DEBUG_LEVEL_TRACE]: New + array. + (TT_RunIns): Trace opcodes. + +2010-06-30 Werner Lemberg + + Fix Savannah bug #30263. + + * src/smooth/ftgrays.c (gray_render_span): Use cast to `unsigned + int' to avoid integer overflow. + + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Use smaller + threshold values for `width' and `height'. This is not directly + related to the bug fix but makes sense anyway. + +2010-07-01 suzuki toshiya + + Initial fix for Savannah bug #30306. + + * src/base/ftobjs.c (Mac_Read_POST_Resource): Check `rlen', the + length of fragment declared in the POST fragment header, and prevent + an underflow in length calculation. Some fonts set the length to + zero in spite of the existence of a following 16bit `type'. + Reported by Robert Święcki. + +2010-07-01 suzuki toshiya + + Additional fix for Savannah bug #30248 and #30249. + + * src/base/ftobjs.c (Mac_Read_POST_Resource): Check the buffer size + during gathering PFB fragments embedded in LaserWriter PS font for + Macintosh. Reported by Robert Święcki. + +2010-06-30 Alexei Podtelezhnikov + + Minor optimizations by avoiding divisions. + + * src/sfnt/ttkern.c (tt_face_load_kern, tt_face_get_kerning): + Replace divisions with multiplication in comparisons. + +2010-06-29 Werner Lemberg + + Fix minor tracing issues. + + * src/cff/cffgload.c, src/truetype/ttgload.c: Adjust tracing levels. + +2010-06-27 Werner Lemberg + + [cff] Really fix `hintmask' and `cntrmask' limit check. + + * src/cff/cffgload.c (cff_decoder_parse_charstrings) + : Fix thinko and handle tracing also. + +2010-06-27 Werner Lemberg + + Fix valgrind warning. + + * src/base/ftoutln.c (FT_Outline_Get_Orientation): Initialize + `result' array. + +2010-06-27 Werner Lemberg + + [cff] Fix memory leak. + + * src/cff/cffgload.c (cff_operator_seac): Free charstrings even in + case of errors. + +2010-06-27 Werner Lemberg + + [cff] Protect against invalid `hintmask' and `cntrmask' operators. + + * src/cff/cffgload.c (cff_decoder_parse_charstrings) + : Ensure that we don't exceed `limit' while parsing + the bit masks of the `hintmask' and `cntrmask' operators. + +2010-06-26 Werner Lemberg + + Fix PFR change 2010-06-24. + + * src/pfr/pfrgload.c (pfr_glyph_load_simple): Really protect against + invalid indices. + +2010-06-26 Werner Lemberg + + Improve PFR tracing messages. + + * src/pfr/pfrgload.c (pfr_glyph_load_rec): Emit tracing messages for + simple and compound glyph offsets. + +2010-06-26 Werner Lemberg + + Fix last PFR change. + + * src/pfr/pfrobjs.c (pfr_face_init): Fix rejection logic. + +2010-06-26 Werner Lemberg + + Fix Savannah bug #30262. + + * src/sfnt/ttload.c (tt_face_load_maxp): Limit `maxComponentDepth' + arbitrarily to 100 to avoid stack exhaustion. + +2010-06-26 Werner Lemberg + + Add some memory checks (mainly for debugging). + + * src/base/ftstream.c (FT_Stream_EnterFrame): Exit with error + if the frame size is larger than the stream size. + + * src/base/ftsystem.c (ft_ansi_stream_io): Exit with error if + seeking a position larger than the stream size. + +2010-06-25 Werner Lemberg + + Fix Savannah bug #30261. + + * src/pfr/pfrobjs.c (pfr_face_init): Reject fonts which contain + neither outline nor bitmap glyphs. + +2010-06-25 Werner Lemberg + + Fix Savannah bug #30254. + + * src/cff/cffload.c (cff_index_get_pointers): Do sanity check for + first offset also. + +2010-06-25 suzuki toshiya + + Initial fix for Savannah bug #30248 and #30249. + + * src/base/ftobjs.c (Mac_Read_POST_Resource): Check the error during + reading a PFB fragment embedded in LaserWriter PS font for Macintosh. + Reported by Robert Święcki. + +2010-06-24 Werner Lemberg + + Fix Savannah bug #30247. + + * src/pcf/pcfread.c (pcf_get_metrics): Disallow (invalid) fonts with + zero metrics. + +2010-06-24 Graham Asher + + * src/smooth/ftgrays.c (gray_render_cubic): Fix algorithm. + The previous version was too aggressive, as demonstrated in + http://lists.gnu.org/archive/html/freetype-devel/2010-06/msg00020.html. + +2010-06-24 Werner Lemberg + + */*: Use module specific error names where appropriate. + +2010-06-24 Werner Lemberg + + Fix Savannah bug #30236. + + * src/sfnt/ttcmap.c (tt_face_build_cmaps): Improve check for pointer + to `cmap_table'. + +2010-06-24 Werner Lemberg + + Fix Savannah bug #30235. + + * src/pfr/pfrgload.c (pfr_glyph_load_simple): Protect against + invalid indices if there aren't any coordinates for indexing. + +2010-06-24 Werner Lemberg + + [bdf]: Font properties are optional. + + * src/bdf/bdflib.c (_bdf_readstream): Use special error code to + indicate a redo operation. + (_bdf_parse_start): Handle `CHARS' keyword here too and pass current + input line to `_bdf_parse_glyph'. + +2010-06-23 Werner Lemberg + + Fix Savannah bug #30220. + + * include/freetype/fterrdef.h + (BDF_Err_Missing_Fontboundingbox_Field): New error code. + + * src/bdf/bdflib.c (_bdf_parse_start): Check for missing + `FONTBOUNDINGBOX' field. + Avoid memory leak if there are multiple `FONT' lines (which is + invalid but doesn't hurt). + +2010-06-21 Werner Lemberg + + Fix Savannah bug #30168. + + * src/pfr/pfrgload.c (pfr_glyph_load_compound): Limit the number of + subglyphs to avoid endless recursion. + +2010-06-20 Werner Lemberg + + Fix Savannah bug #30145. + + * src/psaux/psobjs.c (t1_builder_add_contour): Protect against + `outline == NULL' which might happen in invalid fonts. + +2010-06-19 Werner Lemberg + + Fix Savannah bug #30135. + + * src/bdf/bdflib.c (_bdf_list_join): Don't modify value in static + string `empty'. + (_bdf_parse_glyph): Avoid memory leak in case of error. + +2010-06-15 Werner Lemberg + + Fix Savannah bug #30108. + + * src/autofit/afglobal.c (af_face_globals_compute_script_coverage): + Properly mask AF_DIGIT bit in comparison. + +2010-06-11 Werner Lemberg + + Fix Savannah bug #30106. + + Point numbers for FreeType's implementation of hinting masks are + collected before the final number of points of a glyph has been + determined; in particular, the code for handling the `endchar' + opcode can reduce the number of points. + + * src/pshinter/pshalgo.c (psh_glyph_find_strong_points): Assure that + `end_point' is not larger than `glyph->num_points'. + +2010-06-11 Werner Lemberg + + [cff]: Improve debugging output. + + * src/cff/cffgload.c (cff_decoder_parse_charstrings) + : Implement it. + +2010-06-10 Graham Asher + + ftgrays: Speed up rendering of small cubic splines. + + * src/smooth/ftgrays.c (gray_render_cubic): Implement new, + simplified algorithm to find out whether the spline can be replaced + with two straight lines. See this thread for more: + + http://lists.gnu.org/archive/html/freetype-devel/2010-06/msg00000.html + +2010-06-09 Werner Lemberg + + Fix Savannah bug #30082. + + * src/cff/cffgload.c (cff_decoder_parse_charstrings) + : Protect against stack underflow. + +2010-06-08 Werner Lemberg + + Fix Savannah bug #30053. + + * src/cff/cffparse.c (cff_parse_real): Handle border case where + `fraction_length' has value 10. + +2010-06-07 Werner Lemberg + + Fix Savannah bug #30052. + This bug has been introduced with commit 2415cbf3. + + * src/base/ftobjs.c (FT_Get_First_Char, FT_Get_Next_Char): Protect + against endless loop in case of corrupted font header data. + +2010-05-26 Werner Lemberg + + Remove unused variable. + Found by Graham. + + * src/autofit/afhints.c (af_glyph_hints_reload): Remove unused + variable `first' in first block. + +2010-05-22 Werner Lemberg + + Fix various memory problems found by linuxtesting.org. + + * src/base/ftgxval.c (FT_TrueTypeGX_Free, FT_ClassicKern_Free), + src/base/ftotval.c (FT_OpenType_Free), src/base/ftpfr.c + (ft_pfr_check): Check `face'. + + * src/base/ftobjs.c (FT_Get_Charmap_Index): Check `charmap' and + `charmap->face'. + (FT_Render_Glyph): Check `slot->face'. + (FT_Get_SubGlyph_Info): Check `glyph->subglyphs'. + +2010-05-22 Werner Lemberg + + autofit: Remove dead code. + Suggested by Graham. + + * src/autofit/afhints.c (af_glyph_hints_compute_inflections): + Removed. + (af_glyph_hints_reload): Remove third argument. + Update all callers. + +2010-05-21 Bram Tassyns + + Fix Savannah bug #27987. + + * src/cff/cffobjs.c (remove_subset_prefix): New function. + (cff_face_init): Use it to adjust `cffface->family_name'. + +2010-05-20 Werner Lemberg + + TrueType: Make FreeType ignore maxSizeOfInstructions in `maxp'. + + Acroread does the same. + + * src/truetype/ttgload.c (TT_Process_Composite_Glyph): Call + `Update_Max' to adjust size of instructions array if necessary and + add a rough safety check. + + (load_truetype_glyph): Save `loader->byte_len' before recursive + call. + + * src/truetype/ttinterp.h, src/truetype/ttinterp.c (Update_Max): + Declare it as FT_LOCAL. + +2010-05-18 Hongbo Ni + + Apply Savannah patch #7196. + + * src/cff/cffgload.c (cff_slot_load): Prevent crash if CFF subfont + index is out of range. + +2010-05-11 Werner Lemberg + + * docs/formats.txt: Give pointer to PCF documentation. + Information provided by Alan Coopersmith + . + +2010-05-10 Ken Sharp + + Fix Savannah bug #29846. + + Previously we discovered fonts which used `setcurrentpoint' to set + the initial point of a contour to 0,0. This caused FreeType to + raise an error, because the `setcurrentpoint' operator is only + supposed to be used with the results from an OtherSubr subroutine. + + This was fixed by simply ignoring the error and carrying on. + + Now we have found a font which uses setcurrentpoint to actually + establish a non-zero point for a contour during the course of a + glyph program. FWIW, these files may be produced by an application + called `Intaglio' on the Mac, when converting TrueType fonts to + Type 1. + + The fix allows the new invalid behaviour, the old invalid behaviour + and real proper usage of the operator to work the same way as Adobe + interpreters apparently do. + + (t1_decoder_parse_charstrings): Make `setcurrentpoint' use the top + two elements of the stack to establish unconditionally the current x + and y coordinates. + + Make the `flex' subroutine handling (OtherSubr 0) put the current + x,y coordinates onto the stack, instead of two dummy uninitialised + values. + +2010-04-14 Ken Sharp + + Fix Savannah bug #29444. + + * src/psaux/psobjs.c (t1_builder_start_point): Accept (invalid) + `lineto' immediately after `hsbw', in accordance with Acrobat, GS, + and others. + +2010-04-14 Michał Cichoń + + Fix Savannah bug #27999. + + * src/cache/ftcmanag.c (FTC_Manager_RemoveFaceID): Only remove + selected entry, not all. + +2010-04-06 Jonathan Kew + + Add overflow check to `fvar' table. + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): Check axis and instance + count. + +2010-04-05 Ken Sharp + + Fix Savannah bug #29335. + + * src/raster/ftraster.c (Line_Up): Use slow multiplication to + prevent overflow. This shouldn't have any serious impact on speed, + however. + +2010-04-05 Werner Lemberg + + Add new function `FT_Library_SetLcdFilterWeights'. + + This is based on code written by Lifter + . It fixes + FreeDesktop bug #27386. + + * src/base/ftlcdfil.c (FT_Library_SetLcdFilterWeights): New + function. + + * include/freetype/ftlcdfil.h: Updated. + + * docs/CHANGES: Updated. + +2010-04-01 John Tytgat + + Fix Savannah bug #29404. + + * src/truetype/ttgload.c: Revert change 2752bd1a (check on bit 1 + of `head' table of TrueType fonts). + +2010-03-14 suzuki toshiya + + Fix `multi build' for Tytgat's CFF driver improvement. + + * src/base/cffload.h (cff_index_get_name): Added. + +2010-03-12 suzuki toshiya + + Remove duplicated inclusion of `FT_OUTLINE_H' in ftobjs.c. + + * src/base/ftobjs.c: Remove 2nd inclusion of `FT_OUTLINE_H'. + +2010-03-11 Chris Liddell + + Fix Savannah bug #27442. + + * src/raster/ftraster.c (ft_black_reset): Fix `buffer_size'. + +2010-03-09 Werner Lemberg + + Remove unused variable. + Reported by Graham. + + * src/cff/cffparse.c (cff_parse_real): Remove `rest'. + +2010-03-02 John Tytgat + + Improve CFF string (especially glyphname) lookup performance. + + We do this by avoiding memory allocation and file I/O. This is + Savannah patch #7104. + + * src/cff/cfftypes.h: Include PS cmaps service and + FT_INTERNAL_POSTSCRIPT_HINTS_H. + (CFF_SubFontRec): Remove `num_local_subrs'. + (CFF_FontRec): Add `num_strings', `strings', and `string_pool' + fields. + Remove `string_index' and `num_global_subrs' fields. + Use real types instead of `void' for `pshinter' and `psnames' fields. + + * src/cff/cffload.c: Don't include PS cmaps service. + (cff_index_get_pointers): Add `pool' parameter which allows to + insert an extra NUL character for each String INDEX entry. + (cff_index_get_name): Make it a local function. + (cff_index_get_string): New function. + (cff_subfont_load): Updated. + (cff_font_load): Initialize `num_strings', `strings', and + `string_pool' fields in the `CFF_FontRec' structure. + (cff_index_get_sid_string): Use `cff_index_get_string' instead of + `cff_index_get_name'. + (cff_font_done): Updated. + + * src/cff/cffload.h: Don't include PS cmaps service. + (cff_index_get_string): Added. + (cff_index_get_sid_string): Updated. + + * src/cff/cffobjs.c: Don't include PS cmaps service and + FT_INTERNAL_POSTSCRIPT_HINTS_H. + (cff_size_get_globals_funcs, cff_slot_init): Updated. + (cff_face_init): Follow `cff_index_get_name', + `cff_index_get_string', and `cff_index_get_sid_string' changes. + + * src/cff/cffcmap.c (cff_sid_free_glyph_name): Removed. + (cff_sid_to_glyph_name): Use `cff_index_get_cid_string'. + (cff_cmap_unicode_init): Updated. + + * src/cff/cffdrivr.c: Don't include PS cmap service. + (cff_get_glyph_name): Avoid unnecessary lookup for POSTSCRIPT_CMAPS + service. + (cff_get_glyph_name, cff_ps_get_font_info, cff_get_ros): Follow API + `cff_index_get_sid_string' change. + (cff_get_name_index): Use `cff_index_get_string' instead of + `cff_index_get_name'. + + * src/cff/cffgload.c: Don't include FT_INTERNAL_POSTSCRIPT_HINTS_H. + (cff_decoder_init, cff_decoder_prepare): Updated. + +2010-02-27 Werner Lemberg + + Simplify code. + Suggested by Behdad. + + * src/base/ftobjs.c (FT_Get_First_Char): Don't use a loop since we + call FT_Get_Next_Char anyway if necessary. + +2010-02-26 Behdad Esfahbod + + Improve handling of invalid glyph indices in char->index functions. + + * src/base/ftobjs.c (FT_Get_First_Char, FT_Get_Next_Char): Use a + loop. + +2010-02-18 Chris Liddell + + Fix Savannah bug #28905. + + Initialize phantom points before calling the incremental interface + to update glyph metrics. + + * src/truetype/ttgload.c (tt_get_metrics_incr_overrides) + [FT_CONFIG_OPTION_INCREMENTAL]: New function, split off from... + (tt_get_metrics): This. + Updated. + (load_truetype_glyph): Use tt_get_metrics_incr_overrides. + +---------------------------------------------------------------------------- + +Copyright 2010-2012 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, modified, +and distributed under the terms of the FreeType project license, +LICENSE.TXT. By continuing to use, modify, or distribute this file you +indicate that you have read the license and understand and accept it +fully. + + +Local Variables: +version-control: never +coding: utf-8 +End: diff --git a/ChangeLog.20 b/ChangeLog.20 new file mode 100644 index 0000000..8fcc5e7 --- /dev/null +++ b/ChangeLog.20 @@ -0,0 +1,2613 @@ +2002-02-09 Werner Lemberg + + * README: Fix typo. + * docs/CHANGES: Minor fixes. + + + * Version 2.0.8 released. + ========================= + + +2002-02-08 David Turner + + * docs/CHANGES: Updating for 2.0.8. + + * include/freetype/freetype.h: Setting `PATCH_LEVEL' to 8 and + removing `FT_Get_Next_Char' from the API (temporarily). + + * include/freetype/freetype.h: Adding comments to FT_Get_Next_Char; + note that this function might temporarily be removed for the 2.0.8 + release. + +2002-02-07 David Turner + + * src/pcf/pcfread.c (pcf_load_font): Removed immature support of + the AVERAGE_WIDTH property. + +2002-02-06 David Turner + + * src/sfnt/sfobjs.c (SFNT_Load_Face): Since many fonts embedded in + PDF documents do not include 'cmap', 'post' and 'name' tables, the + SFNT face loader has been changed to not immediately report an + error if these are not present. + + Note that the specification _requires_ these tables, but Adobe + seems to ignore it completely. + + * src/sfnt/ttcmap.c: Removing compiler warnings. + + * src/pcf/pcfread.c (pcf_read_TOC): Use FT_UInt. + (pcf_parse_metric, pcf_parse_compressed_metric): Removed. Code + is now in ... + (pcf_get_metric): Here. + (pcfSeekToType): Renamed to ... + (pcf_seek_to_table_type): This. + Use FT_Int. + (pcfHasType): Renamed to ... + (pcf_has_table_type): This. + Use FT_Int. + (find_property): Renamed to ... + (pcf_find_property): This. + Use FT_Int. + (pcf_get_bitmaps, pcf_get_encodings): Handle invalid PCF fonts + better (delaying format checks out of FT_Access_Frame .. + FT_Forget_Frame blocks to avoid leaving the stream in an incorrect + state when encountering an invalid PCF font). + + * src/pcf/pcfdriver.c (PCF_Done_Face): Renamed to ... + (PCF_Face_Done): This. + (PCF_Init_Face): Renamed to ... + (PCF_Face_Init): This. + (PCF_Get_Char_Index): Renamed to ... + (PCF_Char_Get_Index): This. + (PCF_Get_Next_Char): Renamed to ... + (PCF_Char_Get_Next): This. + (pcf_driver_class): Updated. + + * src/pcf/pcf.h (PCF_Done_Face): Removed. + +2002-02-06 Detlef Würkner + + * src/pcf/pcfdriver.c (FT_Done_Face): Fixed small memory leak. + + * src/pcf/pcfread.c (pcf_load_font): Now handles the `AVERAGE_WIDTH' + property to return correct character pixel (width/height) pairs for + embedded bitmaps. + +2002-02-04 Keith Packard + + Adding the function `FT_Get_Next_Char', doing the obvious thing + w.r.t. the selected charmap. + + * include/freetype/freetype.h: Add prototype. + * include/freetype/internal/ftdriver.h: Add `FTDriver_getNextChar' + typedef. + (FT_Driver_Class): Use it. + * include/freetype/internal/psnames.h: Add `PS_Next_Unicode_Func' + typedef. + (PSNames_Interface): Use it. + * include/freetype/internal/tttypes.h: Add `TT_CharNext_Func' + typedef. + (TT_CMapTable): Use it. + + * src/base/ftobjs.c (FT_Get_Next_Char): New function, implementing + high-level API. + * src/cff/cffdrivr.c (cff_get_next_char): New function. + (cff_driver_class): Add it. + * src/cid/cidriver.c (Cid_Get_Next_Char): New function. + (t1cid_driver_class): Add it. + * src/pcf/pcfdriver.c (PCF_Get_Next_Char): New function. + (pcf_driver_class): Add it. + * src/psnames/psmodule.c (PS_Next_Unicode): New function. + (psnames_interface): Add it. + * src/sfnt/ttcmap.c (code_to_next0, code_to_next2, code_to_next4, + code_to_next6, code_to_next_8_12, code_to_next_10): New auxiliary + functions. + (TT_CharMap_Load): Use them. + * src/truetype/ttdriver.c (Get_Next_Char): New function. + (tt_driver_class): Add it. + * src/type1/t1driver.c (Get_Next_Char): New function. + (t1_driver_class): Add it. + * src/winfonts/winfnt.c (FNT_Get_Next_Char): New function. + (winfnt_driver_class): Add it. + + * src/pcf/pcfread.c (pcf_load_font): For now, report Unicode for + Unicode and Latin 1 encodings. + +2002-02-02 Keith Packard + + * builds/unix/freetype-config.in: Add missing `fi'. + + + * Version 2.0.7 released. + ========================= + + +2002-02-01 David Turner + + * include/freetype/freetype.h: Increasing FREETYPE_PATCH to 7 + for the new release. + +2002-01-31 David Turner + + * README, README.UNX, docs/CHANGES: Updating documentation for the + 2.0.7 release. + +2002-01-30 David Turner + + * INSTALL: Moved to ... + * docs/INSTALL: Here to avoid conflicts with the `install' script on + Windows, where the filesystem doesn't preserve case. + +2002-01-29 David Turner + + * configure: Fixed the script. It previously didn't accept more + than one argument correctly. For example, when typing: + + ./configure --disable-shared --disable-nls + + the `--disable-nls' was incorrectly sent to the `make' program. + +2002-01-29 Werner Lemberg + + * README.UNX: Fix typo. + * builds/unix/install.mk (uninstall): Fix library name for libtool. + +2002-01-28 Francesco Zappa Nardelli + + * src/pcf/pcfdriver.c (PCF_Done_Face): Fix incorrect destruction of + the face object (face->toc.tables, face->root.family_name, + face->root.available_size, face->charset_encoding, + face->charset_registry are now freed). Thanks to Niels Moseley. + +2002-01-28 Roberto Alameda + + * src/type1/t1load.c (parse_encoding): Set `loader->num_chars'. + +2002-01-28 Werner Lemberg + + * src/type1/t1load.c (parse_subrs, parse_charstrings): Use copy + of `base' string for decrypting to not modify the original data. + Based on a patch by Jakub Bogusz . + +2002-01-27 Giuliano Pochini + + * src/smooth/ftgrays.c (gray_render_scanline): Fix bug which caused + bad rendering of thin lines (less than one pixel thick). + +2002-01-25 Werner Lemberg + + * src/cff/cffdrivr.c (cff_get_name_index): Make last patch work + actually. + +2002-01-25 Martin Zinser + + * src/cache/ftccache.c (ftc_node_done, ftc_node_destroy): Fix + compilation warnings. + * src/base/descrip.mms (OBJS): Add `ftmm.obj'. + * src/cache/descrip.mms (ftcache.obj): Dependencies added. + +2002-01-25 WANG Yi + + * src/cff/cffdrivr.c (cff_get_name_index): Fix deallocation bug. + +2002-01-21 Antoine Leca + + * docs/PATENTS: Typo fixed (thanks to Detlef `Hawkeye' Würkner) in + the URL for the online resource. + +2002-01-18 Ian Brown + + * builds/win32/ftdebug.c: New file. + * builds/win32/visualc/freetype.dsp: Updated. + +2002-01-18 Detlef Würkner + + * builds/amiga/src/base/ftsystem.c: Updated for AmigaOS 3.9. + * builds/amiga/README: Updated. + +2002-01-18 Ian Brown + + * builds/win32/visualc/freetype.dsp: Updated. + +2002-01-13 Werner Lemberg + + * builds/unix/freetype2.a4: The script was still buggy. + * builds/unix/freetype-config.in: Make it really work for any install + prefix. + +2002-01-10 Werner Lemberg + + * builds/unix/freetype2.a4: Fix some serious bugs. + +2002-01-09 David Turner + + * builds/unix/configure.ac: Build top-level Jamfile. + +2002-01-09 Maxim Shemanarev + + * src/smooth/ftgrays.c (gray_render_line): Small optimization to + the smooth anti-aliased renderer that deals with vertical segments. + This results in a 5-7% speedup in rendering speed. + +2002-01-08 David Turner + + Added some wrapper scripts to make the installation more + Unix-friendly. + + * configure, install: New files. + + * INSTALL, README.UNX: Updated installation documentation to use the + new 'configure' and 'install' scripts. + +2002-01-07 David Turner + + + * Version 2.0.6 released. + ========================= + + + * docs/BUGS, docs/CHANGES: Updating documentation for 2.0.6 release. + + * src/tools/docmaker.py: Fixed HTML quoting in sources. + (html_format): Replaced with ... + (html_quote): New function. + (html_quote0): New function. + (DocCode::dump_html): Small improvement. + (DocParagraph::dump, DocBlock::html): Use html_quote0 and html_quote. + + * include/freetype/config/ftoption.h: Setting default options for + a release build (debugging off, bytecode interpreter off). + + * src/base/ftobjs.c, src/base/ftoutln.c, src/cache/ftccmap.c, + src/cff/cffload.c, src/cff/cffobjs.c, src/pshinter/pshalgo2.c, + src/sfnt/ttload.c, src/sfnt/ttsbit.c: Removing small compiler + warnings (in pedantic compilation modes). + +2002-01-05 David Turner + + * src/autohint/ahhint.c (ah_align_linked_edge): Modified computation + of auto-hinted stem widths; this avoids color fringes in + `ClearType-like' rendering. + + * src/truetype/ttgload.c (TT_Load_Glyph_Header, + TT_Load_Simple_Glyph, TT_Load_Composite_Glyph, load_truetype_glyph): + Modified the TrueType loader to make it more paranoid; this avoids + nasty buffer overflows in the case of invalid glyph data (as + encountered in the output of some buggy font converters). + +2002-01-04 David Turner + + * README.UNX: Added special README file for Unix users. + + * builds/unix/ftsystem.c (FT_New_Stream): Fixed typo. + + * src/base/ftobjs.c: Added #include FT_OUTLINE_H to get rid + of compiler warnings. + + * src/base/ftoutln.c (FT_Outline_Check): Remove compiler warning. + +2002-01-03 Werner Lemberg + + * src/type1/t1objs.c (T1_Face_Init): Add cast to avoid compiler + warning. + +2002-01-03 Keith Packard + + * builds/unix/ftsystem.c (FT_New_Stream): Added a fix to ensure that + all FreeType input streams are closed in child processes of a `fork' + on Unix systems. This is important to avoid (potential) access + control issues. + +2002-01-03 David Turner + + * src/type1/t1objs.c (T1_Face_Init): Fixed a bug that crashed the + library when dealing with certain weird fonts like `Stalingrad', in + `sadn.pfb' (this font has no full font name entry). + + * src/base/ftoutln.c, include/freetype/ftoutln.h (FT_Outline_Check): + New function to check the consistency of outline data. + + * src/base/ftobjs.c (FT_Load_Glyph): Use `FT_Outline_Check' to + ensure that loaded glyphs are valid. This allows certain fonts like + `tt1095m_.ttf' to be loaded even though it appears they contain + really funky glyphs. + + There still is a bug there, though. + + * src/truetype/ttgload.c (load_truetype_glyph): Fix error condition. + +2001-12-30 David Turner + + * src/autohint/ahhint.c (ah_hinter_load): Fix advance width + computation of auto-hinted glyphs. This noticeably improves the + spacing of letters in KDE and Gnome. + +2001-12-25 Antoine Leca + + * builds/dos/detect.mk: Correcting the order for Borland compilers: + 16-bit bcc was never selected, always overridden by 32-bit bcc32. + +2001-12-22 Francesco Zappa Nardelli + + * src/pfc/pcfread.c (pcf_load_font): Handle property `POINT_SIZE' + and fix incorrect computation of `available_sizes'. + +2001-12-22 David Turner + + * src/autohint/ahhint.c (ah_hinter_load): Auto-hinted glyphs had an + incorrect glyph advance in the case of mono-width fonts (like + Courier, Andale Mono, and others). + +2001-12-22 Detlef Würkner + + * builds/amiga/*: Adaptations to latest changes. + Support added for MorphOS. + +2001-12-22 Werner Lemberg + + * src/pshinter/pshrec.c (FT_COMPONENT): Redefine to `trace_pshrec'. + (ps_mask_table_merge, ps_hints_open, ps_hints_stem, + ps_hints_t1stem3, ps_hints_t2mask, ps_hints_t2counter): Fix + FT_ERROR messages. + * src/pshinter/pshalgo1.c (FT_COMPONENT): Define as + `trace_pshalgo1'. + * src/pshinter/pshalgo2.c (FT_COMPONENT): Define as + `trace_pshalgo2'. + * include/freetype/internal/ftdebug.h (FT_Trace): Updated. + + * docs/modules.txt: New file. + +2001-12-21 David Turner + + * src/pshinter/pshrec.c (ps_hints_t2mask, ps_hints_t2counter): + Ignore invalid `hintmask' and `cntrmask' operators (instead of + returning an error). Glyph 2028 of the CFF font `MSung-Light-Acro' + couldn't be rendered otherwise (it seems its charstring is buggy, + though this requires more analysis). + (FT_COMPONENT): Define. + + * src/cff/cffgload.c (CFF_Parse_CharStrings), src/psaux/t1decode.c + (T1_Decoder_Parse_Charstrings), src/pshinter/pshalgo2.c (*), Fixed a + bug where the X and Y axis where inverted in the postscript hinter. + This caused problem when displaying on non-square surfaces. + + * src/pshinter/pshalgo2.c: s/vertical/dimension/. + + * src/pshinter/pshglob.c (psh_globals_new): Replaced a floating + point constant with a fixed-float equivalent. For some reasons not + all compilers are capable of directly computing a floating pointer + constant casted to FT_Fixed, and will link a math library instead. + +2001-12-20 Werner Lemberg + + * src/cache/ftccache.c (ftc_node_destroy, ftc_cache_lookup): Fix + tracing strings. + * src/cache/ftccmap.c (ftc_cmap_family_init): Ditto. + * src/cache/ftcmanag.c (ftc_family_table_alloc, + ftc_family_table_free, FTC_Manager_Check): Ditto. + * src/cache/ftcsbits.c (ftc_sbit_node_load): Ditto. + + * src/base/ftobjs.c (FT_Done_Library): Remove compiler warning. + +2001-12-20 David Turner + + Added PostScript hinter support to the CFF and CID drivers. + + * include/freetype/internal/cfftypes.h (CFF_Font): New member + `pshinter'. + * src/cff/cffload.c (CFF_Get_Standard_Encoding): New function. + * src/cff/cffload.h: Updated. + * src/cff/cffgload.c (CFF_Init_Builder): Renamed to ... + (CFF_Builder_Init): This. + Added new argument `hinting'. + (CFF_Done_Builder): Renamed to ... + (CFF_Builder_Done): This. + (CFF_Init_Decoder): Added new argument `hinting'. + (CFF_Parse_CharStrings): Implement vstem support. + (CFF_Load_Glyph): Updated. + Add hinting support. + (cff_lookup_glyph_by_stdcharcode): Use CFF_Get_Standard_Encoding(). + (cff_argument_counts): Updated. + * src/cff/cffgload.h: Updated. + * src/cff/cffobjs.c: Include FT_INTERNAL_POSTSCRIPT_HINTS_H. + (CFF_Size_Get_Globals_Funcs, CFF_Size_Done, CFF_Size_Init, + CFF_Size_Reset, CFF_GlyphSlot_Done, CFF_GLyphSlot_Init): New + functions. + (CFF_Init_Face): Renamed to ... + (CFF_Face_Init): This. + Add hinter support. + (CFF_Done_Face): Renamed to ... + (CFF_Face_Done): This. + (CFF_Init_Driver): Renamed to ... + (CFF_Driver_Init): This. + (CFF_Done_Driver): Renamed to ... + (CFF_Driver_Done): This. + * src/cff/cffobjs.h: Updated. + * src/cff/cffdrivr.c (cff_driver_class): Updated. + + * include/freetype/internal/t1types.h (CID_FaceRec): New member + `pshinter'. + * src/cid/cidgload.c (CID_Load_Glyph): Add hinter support. + * src/cid/cidobjs.c: Include FT_INTERNAL_POSTSCRIPT_HINTS_H. + (CID_GlyphSlot_Done, CID_GlyphSlot_Init, CID_Size_Get_Globals_Funcs, + CID_Size_Done, CID_Size_Init, CID_Size_Reset): New functions. + (CID_Done_Face): Renamed to ... + (CID_Face_Done): This. + (CID_Init_Face): Renamed to ... + (CID_Face_Init): This. + Add hinting support. + (CID_Init_Driver): Renamed to ... + (CID_Driver_Init): This. + (CID_Done_Driver): Renamed to ... + (CID_Driver_Done): This. + * src/cid/cidobjs.h: Updated. + * src/cidriver.c: Updated. + + * src/pshinter/pshrec.c (t2_hint_stems): Fixed. + + * src/base/ftobjs.c (FT_Done_Library): Fixed a stupid bug that + crashed the library on exit. + + * src/type1/t1gload.c (T1_Load_Glyph): Enable font matrix + transformation of hinted glyphs. + + * src/cid/cidload.c (cid_read_subrs): Fix error condition. + + * src/cid/cidobjs.c (CID_Face_Done): Fixed a memory leak; the subrs + routines were never released when CID faces were destroyed. + + * src/cff/cffload.h, src/cff/cffload.c, src/cff/cffgload.c: Updated + to move the definition of encoding tables back within `cffload.c' + instead of making them part of a shared header (causing problems in + `multi' builds). This reverts change 2001-08-08. + + * docs/CHANGES: Updated for 2.0.6 release. + * docs/TODO: Added `stem3 and counter hints support' to the TODO + list for the Postscript hinter. + * docs/BUGS: Closed the AUTOHINT-NO-SBITS bug. + +2001-12-19 David Turner + + * include/freetype/cache/ftcache.h: Added comments to indicate that + some of the exported functions should only be used by applications + that need to implement custom cache types. + + * src/truetype/ttgload.c (cur_to_org, org_to_cur): Fixed a nasty bug + that prevented composites from loading correctly, due to missing + parentheses around macro parameters. + + * src/sfnt/sfobjs.c (SFNT_Load_Face): Make the `post' and `name' + tables optional to load PCL fonts properly. + + * src/truetype/ttgload.c (TT_Load_Glyph), src/base/ftobjs.c + (FT_Load_Glyph), include/freetype/freetype.h (FT_LOAD_SBITS_ONLY): + `Fixed' the bug that prevented embedded bitmaps to be loaded when + the auto-hinter is used. This actually is a hack but will be enough + until the internal re-design scheduled for FreeType 2.1. + + * src/raster/ftrend1.c (ft_raster1_render): Fixed a nasty outline + shifting bug in the monochrome renderer. + + * README: Updated version numbers to 2.0.6. + +2001-12-17 Werner Lemberg + + * src/truetype/ttgload.c (load_truetype_glyph): Fix test for invalid + glyph header. + +2001-12-15 Werner Lemberg + + * src/base/ftglyph.c (FT_Glyph_To_Bitmap): Remove compiler warning. + * include/freetype/ftcache.h (FTC_Node_Unref): Removed. It is + already in ftcmanag.h. + * src/cache/ftcsbits.c (ftc_sbit_node_load): Remove unused variable + `gfam'. + * src/cache/ftcmanag.c (ftc_family_table_alloc, + * ftc_family_table_free): Use FT_EXPORT_DEF. + * include/freetype/cache/ftcmanag.h: Updated. + * src/cache/ftccache.c (ftc_node_destroy): Use FT_EXPORT_DEF. + * src/cache/ftccmap.c (ftc_cmap_node_init): Remove unused variable + `cfam'. + Remove compiler warning. + (FTC_CMapCache_Lookup): Remove compiler warnings. + (ftc_cmap_family_init): Ditto. + (FTC_CMapCache_Lookup): Ditto. + + * builds/unix/configure.ac: Increase `version_info' to 8:0:2. + * builds/unix/configure: Regenerated. + +2001-12-14 Werner Lemberg + + * builds/mac/README: Updated. + +2001-12-14 Scott Long + + * src/truetype/ttgload.c (load_truetype_glyph): Fixing crash when + dealing with invalid fonts (i.e. glyph size < 10 bytes). + +2001-12-14 Sam Latinga + + * builds/mac/freetype.make: A new Makefile to build with MPW on + MacOS classic. + +2001-12-14 David Turner + + * src/truetype/ttgload.c (TT_Load_Glyph), src/type1/t1gload.c + (T1_Load_Glyph), src/cid/cidgload.c (CID_Load_Glyph), + src/cff/cffgload.c (CFF_Load_Glyph): Fixed a serious bug common to + all font drivers (the advance width was never hinted when it + should). + + * include/freetype/freetype.h (FREETYPE_PATCH): New macro. + * src/base/ftdbgmem.c (debug_mem_dummy) [!FT_DEBUG_MEMORY]: Don't + use `extern' keyword. + +2001-12-12 David Turner + + * src/pshinter/pshglob.c (psh_blues_scale_zones, psh_blues_snap_stem + psh_globals_new): Adding correct BlueScale/BlueShift support, plus + family blues processing. + * src/pshinter/pshglob.h (PSH_BluesRec): Updated. + + Started adding support for the Postscript hinter in the CFF module. + + * src/cff/cffgload.c: Include FT_INTERNAL_POSTSCRIPT_HINTS_H. + (CFF_Parse_CharStrings): Implement it. + * src/cff/cffgload.h: Updated. + +2001-12-12 Werner Lemberg + + * builds/unix/freetype2.m4: Some portability fixes. + +2001-12-11 Jouk Jansen + + * src/base/descrip.mms (OBJS): Add ftdebug.obj. + +2001-12-11 Werner Lemberg + + * src/sfnt/ttload.c (TT_Load_Generic_Header): Typos. + +2001-12-11 David Turner + + * builds/unix/freetype-config.in: Modified the script to prevent + passing `-L/usr/lib' to gcc. + + * docs/FTL.TXT: Simple fix (change `LICENSE.TXT' to `FTL.TXT'). + + * builds/unix/freetype2.m4: New file for checking configure paths. + We need to install it in $(prefix)/share/aclocal/freetype2.m4 but I + didn't modify builds/unix/install.mk yet. + + * INSTALL: Updated the instructions to build shared libraries with + Jam. They were simply wrong. + + * src/base/fttrigon.c (FT_Cos): Fixed a small bug that caused + slightly improper results for `FT_Cos' and `FT_Sin' (example: + FT_Sin(0) == -1!). + +2001-12-11 Detlef Würkner + + * include/freetype/internal/ftstream.h (GET_LongLE, GET_ULongLE): + Fixed incorrect argument types. + +2001-12-10 Francesco Zappa Nardelli + + * src/pcf/pcfdriver.c (PCF_Init_Face): Allow Xft to use PCF fonts + by setting the `face->metrics.max_advance' correctly. + +2001-12-07 David Turner + + * include/freetype/cache/ftccmap.h, src/cache/ftccmap.c: Added new + charmap cache. + * src/cache/ftcache.c: Updated. + + * src/autohint/ahhint.c (ah_hinter_hint_edges): s/UNUSED/FT_UNUSED/. + +2001-12-06 Leonard Rosenthol + + Added support for reading .dfont files on Mac OS X. Also added a + new routine which looks up a given font by name in the Mac OS and + returns the disk file where it resides. + + * src/base/ftmac.c: Include and . + (is_dfont): New auxiliary function. + (FT_New_Face_From_dfont): New function. + (FT_GetFile_From_Mac_Name): New exported function. + (FT_New_Face): Updated. + * include/freetype/ftmac.h: Updated. + +2001-12-06 David Turner + + * src/cache/Jamfile, src/cache/rules.mk: Updated. + +2001-12-06 Werner Lemberg + + * INSTALL: Small update. + +2001-12-05 David Turner + + * src/base/ftglyph.c (FT_Glyph_To_Bitmap): Re-ordered code for + debugging purposes. + Comment out use of `origin'. + + * src/smooth/ftsmooth.c (ft_smooth_render): Fixed a nasty hidden bug + where outline shifting wasn't correctly undone after bitmap + rasterization. This created problems with certain glyphs (like '"' + of certain fonts) and the cache system. + + * src/pshinter/pshalgo1.c (psh1_hint_table_init): Fix typo. + * src/pshinter/pshalgo2.c (psh2_hint_table_init): Fix typo. + (ps2_hints_apply): Small fix. + +2001-12-05 David Turner + + * src/pshinter/pshalgo2.c (psh2_hint_table_init), + src/pshinter/pshalgo1.c (psh1_hint_table_init): Removed compiler + warnings. + + * include/freetype/ftcache.h, include/freetype/cache/*, src/cache/*: + Yet another massive rewrite of the caching sub-system in order to + both increase performance and allow simpler cache sub-classing. As + an example, the code for the image and sbit caches is now much + simpler. + + I still need to update the documentation in + www/freetype2/docs/cache.html to reflect the new design though. + + * include/freetype/config/ftheader.h (FT_CACHE_CHARMAP_H): New + macro. + (FT_CACHE_INTERNAL_CACHE_H): Updated. + +2001-12-05 David Krause + + * docs/license.txt: s/X Windows/X Window System/. + +2001-12-04 Werner Lemberg + + * src/raster/ftraster.c: Fix definition condition of MEM_Set(). + * src/smooth/ftgrays.c (M_Y): Change value to 192. + * src/base/ftdbgmem.c (ft_mem_table_destroy): Fix printf() parameter. + Remove unused variable. + * src/cache/ftcimage.c (ftc_image_node_init, + ftc_image_node_compare): Remove unused variables. + * src/cache/ftcsbits.c (ftc_sbit_node_weight): Remove unused + variable. + * src/raster/ftraster.c (MEM_Set): Move definition down to avoid + compiler warning. + * src/autohint/ahhint.c (ah_hinter_hint_edges): Use UNUSED() to + avoid compiler warnings. + * src/pcf/pcfread.c (tableNames): Use `const'. + (pcf_read_TOC): Change counter name to avoid compiler warning. + Use `const'. + * src/pshinter/pshrec.c (ps_hints_close): Remove redundant + declaration. + * src/pshinter/pshalgo1.c (psh1_hint_table_init): Rename variables + to avoid shadowing. + * src/pshinter/pshalgo2.c (psh2_hint_table_activate_mask): Ditto. + * src/type1/t1objs.h: Remove double declarations of `T1_Size_Init()' + and `T1_Size_Done()'. + +2001-11-20 Antoine Leca + + * include/freetype/ttnameid.h: Added some new Microsoft language + codes and LCIDs as found in MSDN (Passport SDK). Also added + comments about the meaning of bit 57 of the `OS/2' table + (TT_UCR_SURROGATES) which (with OpenType v.1.3) now means `there is + a character beyond 0xFFFF in this font'. Thanks to Detlef Würkner + for noticing this. + +2001-11-20 David Turner + + * src/pshinter/{pshalgo2.c, pshalgo1.c}: Fixed stupid bug in sorting + routine that created nasty alignment artefacts. + + * src/pshinter/pshrec.c, tests/gview.c: Debugging updates. + + * src/smooth/ftgrays.c: De-activated experimental gamma support. + Apparently, `optimal' gamma tables depend on the monitor type, + resolution and general karma, so it's better to compute them outside + of the rasterizer itself. + (gray_convert_glyph): Use `volatile' keyword. + +2001-10-29 David Turner + + Adding experimental `gamma' support. This produces smoother glyphs + at small sizes for very little cost. + + * src/smooth/ftgrays.c (grays_init_gamma): New function. + (gray_raster_new): Use it. + + Various fixes to the auto-hinter. They merely improve the output of + sans-serif fonts. Note that there are still problems with serifed + fonts and composites (accented characters). + + * src/autohint/ahglyph.c (ah_outline_load, + ah_outline_link_segments): Implement it. + Fix typos. + (ah_outline_save, ah_outline_compute_segments): Fix typos. + * src/autohint/ahhint.c (ah_align_serif_edge): New argument + `vertical'. Implement improvement. + (ah_hint_edges_3, ah_hinter_hint_edges): Implement it. + Fix typos. + (ah_hinter_align_strong_points, ah_hinter_align_weak_points): Fix + typos. + (ah_hinter_load): Set `ah_debug_hinter' if DEBUG_HINTER is defined. + * src/autohint/ahmodule.c: Implement support for DEBUG_HINTER macro. + * src/autohint/ahtypes.h: Ditto. + (AH_Hinter): Remove `disable_horz_edges' and `disable_vert_edges' + (making them global as `ah_debug_disable_horz' and + `ah_debug_disable_vert'). + Fix typos. + + * tests/gview.c: Updated the debugging glyph viewer to show the + hints generated by the `autohint' module. + +2001-10-27 David Turner + + * src/cache/ftcchunk.c (ftc_chunk_cache_lookup): Fixed a bug that + considerably lowered the performance of the abstract chunk cache. + +2001-10-26 David Turner + + * include/freetype/ftcache.h, include/freetype/cache/*.h, + src/cache/*.c: Major re-design of the cache sub-system to provide + better performance as well as an `Acquire'/`Release' API. Seems to + work well here, but probably needs a bit more testing. + +2001-10-26 Leonard Rosenthol + + * builds/mac/README: Updated to reflect my taking over the project + and that is now being actively maintained. + + * src/base/ftmac.c (parse_fond): Applied patches from Paul Miller + to support loading a face other than the + first from a FOND resource. + (FT_New_Face_From_FOND): Updated. + +2001-10-25 Leonard Rosenthol + + * builds/mac/ftlib.prj: Update of CodeWarrior project file for Mac + OS for latest version (7) of CWPro and for recent changes to the FT + source tree. + +2001-10-25 David Turner + + * include/freetype/config/ftoption.h: Updated comments to explain + precisely how to use project-specific macro definitions without + modifying this file manually. + + (FT_CONFIG_FORCE_INT64): Define. + + (FT_DEBUG_MEMORY): New macro. + +2001-10-24 Tom Kacvinsky + + * builds/unix/ftsystem.c (FT_New_Memory): Added a missing `{'. + +2001-10-23 David Turner + + * include/freetype/internal/ftmemory.h, src/base/ftdbgmem.c: + Improvements to the memory debugger to report more information in + case of errors. Also, some allocations that occurred through REALLOC + couldn't be previously caught correctly. + + * src/autohint/ahglyph.c (ah_outline_compute_segments, + ah_outline_compute_edges), src/raster/ftraster.c (ft_black_new), + src/smooth/ftgrays.c (gray_render_span, gray_raster_new): Replaced + liberal uses of memset() by the MEM_Set() macro. + +2001-10-23 David Turner + + * src/raster/ftraster.c (Update): Removed to be inlined in ... + (Sort): Updated. + +2001-10-22 David Turner + + * builds/unix/ftsystem.c (FT_New_Memory, FT_Done_Memory), + builds/vms/ftsystem.c (FT_New_Memory, FT_Done_Memory), + builds/amiga/ftsystem.c (FT_New_Memory, FT_Done_Memory), + src/base/ftdbgmem.c: Updated the memory debugger and + platform-specific implementations of `ftsystem' in order to be able + to debug memory allocations on Unix, VMS and Amiga too! + + * src/pshinter/pshalgo2.c (psh2_hint_table_record_mask): Removed + some bogus warnings. + + * include/freetype/internal/ftmemory.h, src/base/ftdbgmem.c: + Modified the debugging memory manager to report the location (source + file name + line number) where leaked memory blocks are allocated in + the source file. + + * src/base/ftdbgmem.c: New debugging memory manager. You must + define the FT_DEBUG_MEMORY macro in `ftoption.h' to enable it. It + will record every memory block allocated and report simple errors + like memory leaks and double deletes. + + * src/base/Jamfile: Include ftdbgmem. + * src/base/rules.mk: Ditto. + * src/base/ftbase.c: Include ftdbgmem.c. + + * include/freetype/config/ftoption.h: Added the FT_DEBUG_MEMORY + macro definition. + + * src/base/ftsystem.c (FT_New_Memory, FT_Done_Memory): Modified the + base component to use the debugging memory manager when the macro + FT_DEBUG_MEMORY is defined. + +2001-10-21 Tom Kacvinsky + + * src/cff/cffload.c (CFF_Done_Font): Free subfonts array only if + we are working with a CID keyed CFF font. Otherwise, a variable + that was never allocated memory might freed. This is a correction + to the previous patch for freeing subfonts. + +2001-10-21 Tom Kacvinsky + + * src/cff/cffload.c (CFF_Done_Font): Free the subfonts array to + avoid a memory leak. + +2001-10-21 David Turner + + * src/pshinter/pshalgo2.c, src/pshinter/pshalgo1.c, + src/pshinter/pshglob.c: Removing compiler warnings in pedantic modes + (in multi-object compilation mode, mainly). + +2001-10-20 Tom Kacvinsky + + * src/type1/t1load.c (parse_encoding): Add a test to make sure + that custom encodings (i.e., neither StandardEncoding nor + ExpertEncoding) are not loaded twice when the Type 1 font is + synthetic. + + * src/type1/t1load.c (parse_font_name, parse_subrs): Added a test + for when loading synthetic fonts to make sure that the font name + and subroutines are not loaded twice. This is to remove a memory + leak that occurred because the original memory blocks for these + objects were not deallocated when the objects were parsed the + second time. + +2001-10-19 David Turner + + * src/smooth/ftgrays.c, src/pshinter/pshglob.h, + src/pshinter/pshrec.c, src/pshinter/pshalgo2.c: Getting rid of + compiler warnings. + + * src/pshinter/module.mk, src/pshinter/rules.mk: Adding control + files to build the PostScript hinter with the `old' build system. + +2001-10-19 Jacob Jansen + + * descrip.mms, src/pshinter/descrip.mms: Updates to the VMS build + files. + +2001-10-18 David Turner + + * src/psnames/pstables.h, src/tools/glnames.py: Rewrote the + `glnames.py' script used to generate the `pstables.h' header file. + The old one contained a serious bug that made FreeType return + incorrect glyph names for certain glyphs. + + * src/truetype/ttdriver.c (Set_Char_Sizes): Changing computation of + pixel size from character size to use rounding. This is an + experiment to see whether this gives values similar to Windows for + scaled ascent/descent/etc. + + * src/base/ftcalc.c (FT_Div64by32): Changed the implementation + slightly since the original code was mis-compiled on Mac machines + using the MPW C compiler. + + * src/base/ftobjs.c (FT_Realloc): When a memory block was grown + through FT_Realloc(), the new bytes were not set to 0, which created + some strange bugs in the PostScript hinter. + (destroy_face): Don't deallocate unconditionally. + + * src/cid/cidgload.c (CID_Compute_Max_Advance, CID_Load_Glyph): + Adding support to new PostScript hinter. + + * include/freetype/internal/psglobal.h, + include/freetype/internal/pshints.h, + include/freetype/config/ftmodule.h, src/pshinter/Jamfile, + src/pshinter/pshalgo.h, src/pshinter/pshalgo1.h, + src/pshinter/pshalgo1.c, src/pshinter/pshalgo2.h, + src/pshinter/pshalgo2.c, src/pshinter/pshglob.h, + src/pshinter/pshglob.c, src/pshinter/pshinter.c, + src/pshinter/pshmod.c, src/pshinter/pshmod.h, src/pshinter/pshrec.c, + src/pshinter/pshrec.h: Adding new PostScript hinter module. + + * include/freetype/internal/ftobjs.h, + include/freetype/internal/internal.h, + include/freetype/internal/psaux.h, + include/freetype/internal/t1types.h, src/psaux/psobjs.c, + src/psaux/psobjs.h, src/psaux/t1decode.h, src/psaux/t1decode.c, + src/type1/t1driver.c, src/type1/t1gload.c, src/type1/t1objs.c, + src/type1/t1objs.h: Updates to use the new PostScript hinter. + + * tests/Jamfile, tests/gview.c: Adding a new glyph hinting + viewer/debugger to the source tree. Note that you will _not_ be + able to compile it since it depends on an unavailable graphics + library named `Nirvana' to render vector images. + +2001-10-17 David Turner + + + * Version 2.0.5 released. + ========================= + + + * include/freetype/freetype.h, include/internal/ftobjs.h, + src/base/ftobjs.c, src/type1/t1driver.c: Adding a new function named + 'FT_Get_Postscript_Name' to retrieve the PostScript name of a given + font. Should work with all formats except pure CFF/CEF fonts (this + will be added soon). + + * src/cid/cidriver (cid_get_postscript_name): New function. + (CID_Get_Interface): Handle `postscript_name' interface. + + * src/sfnt/sfdriver.c (get_sfnt_postscript_name): New function. + (SFNT_Get_Interface): Handle `postscript_name' interface. + + * src/type1/t1driver.c (t1_get_ps_name): New function. + (Get_Interface): Handle `postscript_name' interface. + + * README, docs/CHANGES: Updated for 2.0.5 release. + +2001-10-08 David Turner + + Fixed a bug in `glnames.py' that prevented it from generating + correct glyph names tables. This resulted in the unavailability of + certain glyphs like `Cacute', `cacute' and `lslash' in Unicode + charmaps, even if these were present in the font (causing problems + for Polish users). + + * src/tools/glnames.py (mac_standard_names): Fixed. + (t1_standard_strings): Some fixes and renamed to ... + (sid_standard_names): This. + (t1_expert_encoding): Fixed. + (the_adobe_glyph_list): Renamed to ... + (adobe_glyph_names): This. + (the_adobe_glyphs): Renamed to ... + (adobe_glyph_values): This. + (dump_mac_indices, dump_glyph_list, dump_unicode_values, main): + Updated. + * src/psnames/pstables.h: Regenerated. + * src/psnames/psmodule.c (PS_Unicode_Value): Fix offset. + Fix return value. + Use `sid_standard_table' and `ps_names_to_unicode' instead of + `t1_standard_glyphs' and `names_to_unicode'. + (PS_Macintosh_Name): Use `ps_glyph_names' instead of + `standard_glyph_names'. + (PS_Standard_Strings): Use `sid_standard_names' instead of + `t1_standard_glyphs'. + + * doc/BUGS, doc/TODO: New documents. + +2001-10-07 Richard Barber + + * src/cache/ftlru.c (FT_Lru_Lookup_Node): Fixed a bug that prevented + correct LRU behaviour. + +2001-10-07 David Turner + + setjmp() and longjmp() are now used for rollback (i.e. when memory + pool overflow occurs). + + Function names are now all uniformly prefixed with `gray_'. + + * src/smooth/ftgrays.c: Include . + (ErrRaster_MemoryOverflow): New macro. + (TArea): New type to store area values in each cell (using `int' was + too small on 16-bit systems). is included to properly + get the needed data type. + (TCell, TRaster): Use it. + (TRaster): New element `jump_buffer'. + (gray_compute_cbox): Use `RAS_ARG' as the only parameter and get + `outline' from it. + (gray_record_cell): Use longjmp(). + (gray_set_cell): Use gray_record_cell() for error handling. + (gray_render_line, gray_render_conic, gray_render_cubic): Simplify. + (gray_convert_glyph_inner): New function, using setjmp(). + (gray_convert_glyph): Use it. + +2001-10-07 David Turner + + Provide a public API to manage multiple size objects for a given + FT_Face in the new header file `ftsizes.h'. + + * include/freetype/ftsizes.h: New header file, + * include/freetype/internal/ftobjs.h: Use it. + Remove declarations of FT_New_Size and FT_Done_Size (moved to + ftsizes.h). + * include/freetype/config/ftheader.h (FT_SIZES_H): New macro. + * src/base/ftobjs.c (FT_Activate_Size): New function. + * src/cache/ftcmanag.c: Include ftsizes.h. + (ftc_manager_init_size, ftc_manager_flush_size): Use + FT_Activate_Size. + +2001-09-20 Detlef Würkner + + * builds/amiga/*: Added port to Amiga with the SAS/C compiler. + +2001-09-15 Detlef Würkner + + * src/type1/t1afm.c (T1_Done_AFM): Free `afm'. + +2001-09-10 Yao Zhang + + * src/sfnt/ttcmap.c (code_to_index2): Handle code values with + hi-byte == 0 correctly. + +2001-09-10 Werner Lemberg + + * builds/link-std.mk ($(PROJECT_LIBRARY)): Fix typo. + +2001-08-30 Martin Muskens + + * src/type1/t1load.c (parse_font_matrix): A new way to compute the + units per EM with greater accuracy (important for embedded T1 fonts + in PDF documents that were automatically generated from TrueType + ones). + + * src/type1/t1load.c (is_alpha): Now supports `+' in font names; + this is used in embedded fonts. + + * src/psaux/psobjs.c (PS_Table_Add): Fixed a reallocation bug that + generated a dangling pointer reference. + +2001-08-30 Anthony Feik + + * src/type1/t1afm.c (T1_Read_Afm): Now correctly sets the flag + FT_FACE_FLAG_KERNING when appropriate for Type1 + AFM files. + +2001-08-25 Werner Lemberg + + * src/sfnt/ttload.c (TT_Load_CMap): Fix frame length of + `cmap_rec_fields'. + + * include/freetype/fterrors.h [!FT_CONFIG_OPTION_USE_MODULE_ERRORS]: + Undefine FT_ERR_BASE before defining again. + +2001-08-22 Werner Lemberg + + * src/truetype/ttinterp.h: Fix prototype of TT_Move_Func. + +2001-08-21 Werner Lemberg + + * builds/dos/dos-def.mk (NO_OUTPUT): Don't use `&>' but `>'. + +2001-08-21 David Turner + + * include/freetype/config/ftoption.h: Changed the default setting + for FT_CONFIG_OPTION_USE_MODULE_ERRORS to undefined, since it breaks + source compatibility in a few cases. Updated the comment to explain + that too. + +2001-08-17 Martin Muskens + + * src/base/ftcalc.c (FT_MulDiv): Fixed serious typo. + +2001-08-12 Werner Lemberg + + Updating to OpenType 1.3. + + * include/freetype/internal/tttypes.h (TT_CMap0, TT_CMap2, TT_CMap4, + TT_CMap6): Adding field `language'. + (TT_CMapTable): Removing field `language'. + Type of `length' field changed to FT_ULong. + Adding fields for cmaps format 8, 10, and 12. + (TT_CMapGroup): New auxiliary structure. + (TT_CMap8_12, TT_CMap10): New structures. + * include/freetype/tttables.h (TT_HoriHeader, TT_VertHeader): + Removed last element of `Reserved' array. + * include/freetype/ttnameid.h (TT_PLATFORM_CUSTOM, TT_MS_ID_UCS_4, + TT_NAME_ID_CID_FINDFONT_NAME): New macros. + + * src/sfnt/ttcmap.c (TT_CharMap_Load): Updated loading of `language' + field to the new structures. + Fixed freeing of arrays in case of unsuccessful loads. + Added support for loading format 8, 10, and 12 cmaps. + (TT_CharMap_Free): Added support for freeing format 8, 10, and 12 + cmaps. + (code_to_index4): Small improvement. + (code_to_index6): Ditto. + (code_to_index8_12, code_to_index10): New functions. + * src/sfnt/ttload.c (TT_Load_Metrics_Header): Updated to new + structure. + (TT_Load_CMap): Ditto. + + * src/sfnt/sfobjs.c (tt_encodings): Add MS UCS4 table (before MS + Unicode). + +2001-08-11 Werner Lemberg + + * src/type1/t1driver.c (t1_get_name_index): Fix compiler warning. + +2001-08-09 Tom Kacvinsky + + * src/cff/cffdrivr.c (get_cff_glyph_name): Renamed to + cff_get_glyph_name for consistency. + + (cff_get_glyph_index): Minor documentation change. + + * src/type1/t1driver.c (t1_get_name_index): New function used in + Get_Interface as the function returned when the `name_index' + function is requested. + + (get_t1_glyph_name): Renamed to t1_get_glyph_name for consistency. + +2001-08-08 Tom Kacvinsky + + * src/cff/cffload.c: Removed definitions of cff_isoadobe_charset, + cff_expert_charset, cff_expertsubset_charset, cff_standard_encoding, + and cff_expert_encoding arrays to cffload.h. + + * src/cff/cffload.h: Added definitions of cff_isoadobe_charset, + cff_expert_charset, cff_expertsubset_charset, cff_standard_encoding, + and cff_expert_encoding arrays. + + * src/cff/cffdrivr.c (cff_get_name_index): New function, returned + when `cff_get_interface' is called with a request for the + `name_index' function. + + (cff_get_interface): Modified so that it returns the function + `cff_get_name_index' when the `name_index' function is requested. + + * src/base/ftobjs.c (FT_Get_Name_Index): New function, used to + return a glyph index for a given glyph name only if the driver + supports glyph names. + + * include/freetype/internal/ftobjs.h (FT_Name_Index_Requester): + New function pointer type definition used in the function + FT_Get_Name_Index. + + * include/freetype/freetype.h (FT_Get_Name_Index): Added + documentation and prototype. + +2001-07-26 Werner Lemberg + + * builds/cygwin/*: Removed. Use the unix stuff instead. + +2001-07-26 Jouk Jansen + + * builds/vms/ftconfig.h (FT_CALLBACK_DEF): Updated to change dated + 2001-06-27. + +2001-07-17 Werner Lemberg + + * include/freetype/internal/psaux.h (PS_Table): Use FT_Offset for + `cursor' and `capacity'. + * src/psaux/psobjc.c (reallocate_t1_table): Use FT_Long for second + parameter. + (PS_Table_Add): Use FT_Offset for `new_size'. + + Add support for version 0.5 maxp tables. + + * src/sfnt/ttload.c (TT_Load_MaxProfile): Implement it. + (TT_Load_OS2): Initialize some values. + +2001-07-13 Werner Lemberg + + * src/base/ftsynth.c: Include ftcalc.h unconditionally. + +2001-07-07 David Turner + + * src/truetype/ttgload.c, src/truetype/ttinterp.c, src/pcf/pcfread: + Removed pedantic compiler warnings when the bytecode interpreter is + compiled in. + +2001-07-03 Werner Lemberg + + * src/autohint/ahhint.c (ah_hinter_align_weak_points): Remove + unused variable `edges'. + (ah_hinter_load): Remove unused variables `old_width' and + `new_width'. + * src/cid/cidload.c (cid_decrypt): Use `U' for constant (again). + * src/psaux/psobjs.c (T1_Decrypt): Ditto. + * src/type1/t1parse.c (T1_Get_Private_Dict): Ditto. + +2001-06-28 David Turner + + * include/internal/ftstream.h: Modified the definitions + of the FT_GET_XXXX and NEXT_XXXX macros for 16-bit correctness. + +2001-06-26 Werner Lemberg + + * src/cid/cidload.c, src/cid/cidload.h (cid_decrypt): Use FT_Offset + instead of FT_Int as type for `length' parameter. + * include/freetype/internal/psaux.h (PSAux_Interface): Updated. + +2001-06-27 Wolfgang Domröse + + * src/psaux/psobjs.c, src/psaux/psobjs.h (T1_Decrypt): Use FT_Offset + instead of FT_Int as type for `length' parameter. + + + * Version 2.0.4 released. + ========================= + + +2001-06-27 David Turner + + * builds/unix/ftconfig.in: Changed the definition of the + FT_CALLBACK_DEF macro. + + * include/freetype/ftconfig.h, src/*/*.c: Changed the definition and + use of the FT_CALLBACK_DEF macro in order to support 16-bit + compilers. + + * builds/unix/ftconfig.in: Changed the definition of the + FT_CALLBACK_DEF macro. + + * src/sfnt/ttload.c (TT_Load_Kern): The kern table loader now ensures + that the kerning table is correctly sorted (some problem fonts don't + have a correct kern table). + +2001-06-26 Wolfgang Domröse + + * include/freetype/internal/ftstream.h (FT_GET_OFF3_LE): Fix typo. + +2001-06-24 David Turner + + * src/base/ftcalc.c (ft_div64by32): Fixed the source to work + correctly on 16-bit systems. + +2001-06-23 Anthony Fok + + * debian/*: Added Debian package build directory for 2.0.4. + +2001-06-22 David Turner + + * docs/PATENTS: Added patents disclaimer. This one was missing! + + * docs/CHANGES, docs/todo: Updated for the upcoming 2.0.4 release. + +2001-06-20 Werner Lemberg + + * include/freetype/config/ftconfig.h: Add two more `L's to + constants. + Add missing semicolons. + + * builds/toplevel.mk: Do similar change as for + builds/unix/detect.mk. + + * include/freetype/freetype.h (FT_ENC_TAG): New version to make it + easier to redefine. + * include/freetype/ftimage.h (FT_IMAGE_TAG): Ditto. + + * src/pcf/pcfread.c (pcf_get_encodings): Add cast. + +2001-06-19 David Turner + + * builds/win32/visualc/freetype.dsp, builds/win32/visualc/index.html: + Updated the Visual C++ project (for the 2.0.4 release). + + * builds/unix/detect.mk: Added rule for AIX detection (which uses + /usr/sbin/init instead of /sbin/init). + + * include/freetype/fterrors.h, src/*/*err*.h: Updated some of the + error macros to simplify handling of new error scheme. + +2001-06-19 Werner Lemberg + + * include/freetype/fttypes.h (FT_ERROR_MODULE): New macro. + +2001-06-19 David Turner + + Removing _lots_ of compiler warnings when the most pedantic warning + levels of Visual C++ and Borland C++ are used. Too many files to be + listed here, but FT2 now compiles without warnings with VC++ and the + `/W4' warning level (lint-style). + + * include/freetype/freetype.h (FT_New_Memory_Face): Updated + documentation. + * include/freetype/fttypes.h (FT_BOOL): New macro. + * include/freetype/internal/ftdebug.h: Add #pragma for Visual C++ + to suppress warning. + * include/freetype/internal/ftstream.h (FT_GET_SHORT_{BE,LE}, + FT_GET_OFF3_{BE,LE}, FT_GET_LONG_{BE,LE}): New macros. + (NEXT_*): Use them. + * src/autohint/ahglobal.c: Include FT_INTERNAL_DEBUG_H. + (FT_New_Memory_Face): Add `const' to function declaration. + +2001-06-18 Werner Lemberg + + Minor cleanups to remove compiler warnings. + + * include/freetype/cache/ftcmanag.h (FTC_MAX_BYTES_DEFAULT): Use + `L' for constant. + * include/freetype/config/ftoption.h (FT_RENDER_POOL_SIZE): Ditto. + * src/base/ftcalc.c (FT_MulDiv): Use `L' for constant. + * src/base/ftglyph.c (FT_Glyph_Get_CBox): Remove `error' variable. + * src/base/fttrigon.c (ft_trig_arctan_table): Use `L' for constants. + * src/base/ftobjs.c (FT_Done_Size): Fix return value. + (FT_Set_Char_Size, FT_Set_Pixel_Sizes, FT_Get_Kerning): Remove + unused `memory' variable. + * src/autohint/ahglyph.c (ah_get_orientation): Use `L' for constant. + * src/autohint/ahhint.c (ah_hint_edges_3, + ah_hinter_align_edge_points): Remove unused `before' and `after' + variables. + (ah_hinter_align_weak_points): Remove unused `edge_limit' variable. + (ah_hinter_load): Remove unused `new_advance', `start_contour', + and `metrics' variables. + * src/cff/cffload.c (CFF_Load_Encoding): Remove dead code to avoid + compiler warning. + * src/cff/cffobjs.c (CFF_Init_Face): Remove unused `base_offset' + variable. + * src/cff/cffgload.c (CFF_Parse_CharStrings): Remove unused + `outline' variable. + (cff_compute_bias): Use `U' for constant. + * src/cid/cidload.c (cid_decrypt): Ditto. + * src/psaux/psobjs.c (T1_Decrypt): Ditto. + * src/psaux/t1decode.c (T1_Decoder_Parse_CharStrings): Ditto. + * src/sfnt/ttload.c (TT_Load_Kern): Remove unused `version' + variable. + * src/sfnt/ttsbit.c (TT_Load_SBit_Image): Remove unused `top' + variable. + * src/truetype/ttgload.c (load_truetype_glyph): Remove unused + `num_contours' and `ins_offset' variables. + (compute_glyph_metrics): Remove unused `Top' and `x_scale' + variables. + (TT_Load_Glyph): Remove unused `memory' variable. + * src/smooth/ftgrays.c (grays_raster_render): Use `L' for constants. + +2001-06-18 Werner Lemberg + + Make the new error scheme source compatible with older FT versions + by introducing another layer. + + * include/freetype/fterrors.h (FT_ERRORDEF_, FT_NOERRORDEF_): New + macros. + (FT_NOERRORDEF): Removed. + * include/*/*err*.h: Use FT_ERRORDEF_ and FT_NOERRORDEF_. + +2001-06-16 Werner Lemberg + + * include/freetype/freetype.h (FT_ENC_TAG): New macro. + (FT_Encoding_): Use it. + * include/freetype/ftimage.h (FT_IMAGE_TAG): Define it + conditionally. + +2001-06-14 David Turner + + Modified the TrueType interpreter to let it use the new + trigonometric functions provided in `fttrigon.h'. This gets rid of + some old 64-bit computation routines, as well as many warnings when + compiling the library with the `long long' 64-bit integer type. + + * include/freetype/config/ftoption.h: Undefine + FT_CONFIG_OPTION_OLD_CALCS. + * include/freetype/internal/ftcalc.h: Rearrange use of + FT_CONFIG_OPTION_OLD_CALCS. + * src/base/ftcalc.c: Add declaration of FT_Int64 if + FT_CONFIG_OPTION_OLD_CALCS isn't defined. + * src/truetype/ttinterp.c: Use FT_TRIGONOMETRY_H. + (Norm): Add a special version if FT_CONFIG_OPTION_OLD_CALCS isn't + defined. + (Current_Ratio, Normalize): Simplify code. + +2001-06-11 Mike Owens + + * src/base/ftcalc.c (FT_MulDiv, FT_DivFix, FT_Sqrt64): Remove + compiler warnings. + +2001-06-08 Werner Lemberg + + * builds/unix/configure.in: Renamed to ... + * builds/unix/configure.ac: This to make sure that autoconf 2.50 is + needed. + Run `autoupdate' on it. + Increase `version_info' to 7:0:1. + * builds/unix/configure: Regenerated. + +2001-06-08 David Turner + + * src/autohint/ahhint.c (ah_hinter_load_glyph): Fixed a bug that + corrupted transformed glyphs that were auto-hinted (the transform + was applied twice). + + Fixed a bug that returned an invalid linear width for composite + TrueType glyphs. + + * include/internal/tttypes.h (TT_Loader_): Two new elements `linear' + and `linear_def'. + * src/truetype/ttgload.c (load_truetype_glyph, + compute_glyph_metrics): Use it. + + * include/fttypes.h (FT_ERROR_BASE): New macro. + * src/base/ftobjs.c (FT_Open_Face, FT_Render_Glyph_Internal): Use it + to make source code work with the new error scheme implemented by + Werner. + * src/base/ftoutln.c (FT_Outline_Render): Ditto. + +2001-06-07 Werner Lemberg + + Updating to libtool 1.4.0 and autoconf 2.50. + + * builds/unix/ltconfig: Removed. + * builds/unix/ltmain.sh, builds/unix/configure.in, + builds/unix/aclocal.m4: Updated. + * builds/unix/configure: Regenerated. + +2001-06-06 Werner Lemberg + + Complete redesign of error codes. Please check ftmoderr.h for more + details. + + * include/freetype/internal/cfferrs.h, + include/freetype/internal/tterrors.h, + include/freetype/internal/t1errors.h: Removed. Replaced with files + local to the module. All extra error codes have been moved to + `fterrors.h'. + + * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. + + * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, + src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, + src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, + src/smooth/ftsmerrs.h, src/truetype/tterrors.h, + src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the + error names for the module it belongs to. + + * include/freetype/ftmoderr.h: New file, defining the module error + offsets. Its structure is similar to `fterrors.h'. + + * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. + (FT_ERRORDEF): Redefined to use module error offsets. + All internal error codes are now public; unused error codes have + been removed, some are new. + + * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New + macro. + * include/freetype/config/ftoption.h + (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. + + All other source files have been updated to use the new error codes; + some already existing (internal) error codes local to a module have + been renamed to give them the same name as in the base module. + + All make files have been updated to include the local error files. + +2001-06-06 Werner Lemberg + + * src/cid/cidtokens.h: Replaced with... + * src/cid/cidtoken.h: This file for 8+3 consistency. + + * src/raster/ftraster.c: Use macros for header file names. + + * src/include/freetype/tttables.h (TT_HoriHeader_, TT_VertHeader_): + Fix length of `Reserved' array. Note that this isn't the real fix + since recent OpenType specs have introduced a `CaretOffset' field + instead of the first reserved byte. + +2001-05-29 Werner Lemberg + + * INSTALL: Minor fixes. + + + * Version 2.0.3 released. + ========================= + + +2001-05-29 David Turner + + * INSTALL, docs/CHANGES: Updated. + +2001-05-25 David Turner + + Moved several documents from the top-level to the `docs' directory. + + * src/base/ftcalc.c (FT_DivFix): Small fix to return value. + +2001-05-16 David Turner + + * src/truetype/ttgload.c (load_truetype_glyph): Fixed a bug in the + composite loader. Spotted by Keith Packard. + * src/base/ftobjs.c (FT_GlyphLoader_Check_Points, + FT_GlyphLoader_Check_Subglyphs): Ditto. + +2001-05-14 David Turner + + Fixed the incorrect blue zone computations, and improved the + composite support. Note that these changes result in improved + rendering, while sometimes introducing their own artefacts. This is + probably the last big change to the autohinter before the + introduction of a complete replacement. + + * src/autohint/ahglobal.c (sort_values): Fix loop. + * src/autohint/ahglyph.c: Removed some obsolete code. + (ah_outline_compute_edges): Modify code to set the ah_edge_round + flag. + (ah_outline_compute_blue_edges): Add code to compute active blue + zones. + * src/autohint/ahhint.c (ah_hinter_glyph_load): Change load_flags + value. + + * src/base/ftcalc.c (FT_DivFix): Fixed a bug in the 64-bit code that + created incorrect scale factors! + (FT_Round_Fix, FT_CeilFix, FT_FloorFix): Minor improvements. + +2001-05-12 Werner Lemberg + + * include/freetype/ftbbox.h: FTBBOX_H -> __FTBBOX_H__. + * include/freetype/fttrigon.h: __FT_TRIGONOMETRY_H__ -> + __FTTRIGON_H__. + Include FT_FREETYPE_H. + Beautified; added copyright. + * src/base/fttrigon.c: Beautified; added copyright. + +2001-05-11 David Turner + + * src/cff/cffparse.c (cff_parse_font_matrix), src/cid/cidload.c + (parse_font_matrix), src/type1/t1load.c (parse_font_matrix): Fixed + the incorrect EM size computation. + + * include/freetype/fttrigon.h, src/base/fttrigon.c: New files, + adding trigonometric functions to the core API (using Cordic + algorithms). + * src/base/ftbase.c, src/base/Jamfile, src/base/rules.mk: Use them. + + * builds/newline: New file. + * builds/top_level.mk, builds/detect.mk: Use it. This fixes + problems with Make on Windows 2000, as well as problems when `make + distclean' is invoked on a non-Unix platform when there is no + `config.mk' in the current directory. + + * builds/freetype.mk: Fixed a problem with object deletions under + Dos/Windows/OS/2 systems. + + Added new directory to hold tools and test programs. + + * docs/docmaker.py, docs/glnames.py: Moved to... + * src/tools/docmaker.py, src/tools/glnames.py: This place. + * src/tools/cordic.py: New file used to compute arctangent table + needed by fttrigon.c. + * src/tools/test_bbox.c, src/tools/test_trig.c: New test files. + + * src/tools/docmaker.py: Improved the script to add the current date + at the footer of each web page (useful to distinguish between + versions). + + * Jamfile: Fixed incorrect HDRMACRO argument. + + * TODO: Removed the cubic arc bbox computation note, since it has been + fixed recently. + * src/base/ftbbox.c (test_cubic_zero): Renamed to... + (test_cubic_extrema): This function. Use `UL' for unsigned long + constants. + + * include/freetype/t1tables.h, include/freetype/config/ftoption.h: + Formatting. + +2001-05-10 David Turner + + * src/base/ftobjs.c (FT_Open_Face): Fixed a small memory leak + which happened when trying to open 0-size font files! + +2001-05-09 Werner Lemberg + + * include/freetype/internal/ftcalc.h: Move declaration of + FT_SqrtFixed() out of `#ifdef FT_LONG64'. + +2001-05-08 Francesco Zappa Nardelli + + * src/pcfdriver.c (PCF_Load_Glyph): Fixed incorrect bitmap width + computation. + +2001-05-08 David Turner + + * docs/docmaker.py: Updated the DocMaker script in order to add + command line options (--output,--prefix,--title), fix the erroneous + line numbers reported during errors and warnings, and other + formatting issues. + + * src/base/ftcalc.c (FT_MulDiv, FT_MulFix, FT_DivFix): Various tiny + fixes related to rounding in 64-bits routines and + pseudo-`optimizations'. + +2001-04-27 David Turner + + * src/base/ftbbox.c (BBox_Cubic_Check): Fixed the coefficient + normalization algorithm (invalid final bit position, and invalid + shift computation). + +2001-04-26 Werner Lemberg + + * builds/unix/config.guess, builds/unix/config.sub: Updated to + latest versions from gnu.org. + + * builds/compiler/gcc-dev.mk: Add `-Wno-long-long' flag. + + * include/freetype/internal/ftcalc.h: Define FT_SqrtFixed() + unconditionally. + * src/base/ftbbox.c: Include FT_INTERNAL_CALC_H. + Fix compiler warnings. + * src/base/ftcalc.c: Fix (potential) compiler warnings. + +2001-04-26 David Turner + + * src/base/ftcalc.c (FT_SqrtFixed): Corrected/optimized the 32-bit + fixed-point square root computation. It is now used even with + 64-bits integers, as it is _much_ faster than calling FT_Sqrt64 :-) + + * src/base/ftbbox.c: Removed invalid `#include FT_BEZIER_H' line. + +2001-04-25 David Turner + + * src/base/ftbbox.c (BBox_Cubic_Check): Rewrote function to use + direct computations with 16.16 values instead of sub-divisions. It + is now slower, but proves a point :-) + + * src/raster/ftraster.c, src/smooth/ftgrays.c, src/base/ftbbox.c: + Fixed the Bézier stack depths. + + * src/base/ftcalc.c (FT_MulFix): Minor rounding fix. + + * builds/beos: Added BeOS-specific files to the old build system + (no changes were necessary to support BeOS in the Jamfile though). + +2001-04-20 David Turner + + * ftconfig.h, ftoption.h: Updated `ftconfig.h' to detect 64-bit int + types on platforms where Autoconf is not available). Also removed + FTCALC_USE_LONG_LONG and replaced it with + FT_CONFIG_OPTION_FORCE_INT64. + + * builds/win32/freetype.dsp: Updated the Visual C++ project file. + Doesn't create a DLL yet. + + * cffgload.c: Removed a compilation warning. + +2001-04-10 Tom Kacvinsky + + * t1load.c (parse_charstrings): Changed code for placing .notdef + glyph into slot 0 so that we no longer have a memory access + violation. + + * t1load.h: In structure T1_Loader, added swap_table (of type + PS_Table) to facilitate placing the .notdef glyph into slot 0. + +2001-04-10 Francesco Zappa Nardelli + + * src/pcf/pcfdriver.c (PCF_Get_Char_Index): Fix return value. + +2001-04-09 Laurence Withers + + * builds/dos/detect.mk: Add support for bash. + +2001-04-05 Werner Lemberg + + * builds/os2/*.mk: These files have been forgotten to update to + the structure of similar makefiles. + * builds/dos/*.mk: Ditto. + * builds/ansi/*.mk: Ditto. + + * builds/win32/win32-def.mk (BUILD): Fix typo. + + * builds/compiler/*.mk (CLEAN_LIBRARY): Don't use NO_OUTPUT. + This is already used in the link_*.mk files. + +2001-04-03 Werner Lemberg + + * src/*/Jamfile: Slight changes to make files more cryptic. + +2001-04-03 Werner Lemberg + + * Jamfile, src/Jamfile, src/*/Jamfile: Formatted. Slight changes + to give files identical structure. + +2001-04-02 Werner Lemberg + + * CHANGES: Reformatted, minor fixes. + * TODO: Updated. + * README: Formatting. + * include/freetype/freetype.h: Formatting. + + * Jamfile: Fix typo. + + * src/cff/cffparse.c: Move error code #defines to... + * include/freetype/internal/cfferrs.h: This file. + * src/cff/cffdrivr.c, src/cff/cffobjs.c, src/cff/cffload.c: Replaced + `FT_Err_*' with `CFF_Err_*'. + * src/cid/cidparse.c: Replaced `FT_Err_*' with `T1_Err_*'. + * src/psaux/psobjs.c, src/psaux/t1decode.c: Ditto. + * src/sfnt/sfobcs.c, src/sfnt/ttload.c: Replaced `FT_Err_*' with + `TT_Err_*'. + * src/truetype/ttgload.c, src/truetype/ttobjs.c: Ditto. + * src/type1/t1gload.c, src/type1/t1load.c, src/type1/t1objs.c, + src/type1/t1parse.c: Replaced `FT_Err_*' with `T1_Err_*'. + + * include/freetype/internal/cfferrs.h: Add + `CFF_Err_Unknown_File_Format'. + * include/freetype/internal/t1errors.h: Add + `T1_Err_Unknown_File_Format'. + * include/freetype/internal/tterrors.h: Add + `TT_Err_Unknown_File_Format'. + + * src/cff/cffload.h: Add `cff_*_encoding' and `cff_*_charset' + references. + * src/psaux/psobjs.c: Include `FT_INTERNAL_TYPE1_ERRORS_H'. + + * src/cff/cffobjs.c (CFF_Init_Face, CFF_Done_Face): Use + FT_LOCAL_DEF. + * src/cid/cidobjs.c (CID_Done_Driver): Ditto. + * src/trutype/ttobjs.c (TT_Init_Face, TT_Done_Face, TT_Init_Size): + Ditto. + * src/type1/t1objs.c (T1_Done_Driver): Ditto. + * src/pcf/pcfdriver.c (PCF_Done_Face): Ditto. + * src/pcf/pcf.h: Use FT_LOCAL for `PCF_Done_Face'. + +2001-04-02 Tom Kacvinsky + + * src/sfnt/ttload.c (TT_Load_Metrics): Fix an improper pointer + dereference. Submitted by Herbert Duerr . + +2001-03-26 Tom Kacvinsky + + * include/freetype/config/ftconfig.h: Changed hexadecimal + constants to use suffix U to avoid problems with HP-UX's c89 + compiler. Submitted by G.W. Lucas . + +2001-03-24 David Turner + + * Jamrules, Jamfile, src/Jamfile, src/*/Jamfile: Adding jamfiles to + the source tree. See www.freetype.org/jam/index.html for details. + + + * Version 2.0.2 released. + ========================= + + +2001-03-20 Werner Lemberg + + * builds/win32/detekt.mk: Fix .PHONY target for Intel compiler. + +2001-03-20 David Turner + + * include/freetype/config/ftheader.h, include/freetype/ftsnames.h: + Renamed `ftnames.h' to `ftsnames.h', and FT_NAMES_H to + FT_SFNT_NAMES_H. + + * docs/docmaker.py: Added generation of INDEX link in table of + contents. + + * INSTALL, docs/BUILD: Updated documentation to indicate that the + compilation process has changed slightly (no more `src' required in + the include path). + + * builds/*/*-def.mk: Changed the objects directory from `obj' to + `objs'. + + * include/freetype/config/ftheader.h: Removed obsolete macros like + FT_SOURCE_FILE, etc. and added cache-specific macro definitions that + were previously defined in . Added comments to + be included in a new API Reference section. + + * src/*/*: Removed the use of FT_SOURCE_FILE, etc. Now, each + component needs to add its own directory to the include path at + compile time. Modified all `rules.mk' and `descrip.mms' + accordingly. + +2001-03-20 Werner Lemberg + + * builds/unix/configure.in: Add $ft_version. + * builds/unix/freetype-config.in: Use it. + * builds/unix/configure: Updated. + +2001-03-19 Tom Kacvinsky + + * src/type1/t1load.c (parse_font_matrix): Assign the units per em + value an unsigned short value, first by shifting right 16 bits, + then by casting the results to FT_UShort. + + * src/cff/cffparse.c (cff_parse_font_bbox): Assign the units per em + value an unsigned short value, first by shifting right 16 bits, + then by casting the results to FT_UShort. + +2001-03-17 David Turner + + * src/cid/cidobjs.c, src/cid/cidload.c, src/pcf/pcfread.c, + src/type1/t1load.c, src/type1/t1objs.c: Added a few casts to remove + compiler warnings in pedantic modes. + + * include/config/ft2build.h, include/config/ftheader.h: The file + `ft2build.h' was renamed to `ftheader.h' to avoid conflicts with the + top-level . + + * include/config/ftheader.h: Added new section describing the #include + macros. + +2001-03-17 Tom Kacvinsky + + * src/cff/cffparse.c (cff_parse_font_bbox): Obtain rounded FT_Fixed + values for the bounding box numbers. + + * src/cff/cffobjs.c (CFF_Init_Face): When processing a CFF/CEF font, + set `root->ascender' (`root->descender') to the integer part of + `root->bbox.yMax' (`root->bbox.yMin', respectively). + +2001-03-16 Tom Kacvinsky + + * src/cff/cffdrivr.c (get_cff_glyph_name): New function. Used in + cff_get_interface to facilitate getting a glyph name for glyph index + via FT_Get_Glyph_Name(). + + (cff_get_interface): Added support for getting a glyph name via the + `glyph_name' module interface. Uses the new function + get_cff_glyph_name(). + Submitted by Sander van der Wal . + + * src/cff/cffobjs.c (CFF_Init_Face): Logical or the face flags with + FT_FACE_FLAG_GLYPH_NAMES only if FT_CONFIG_OPTION_NO_GLYPH_NAMES is + not defined. This is to add support for getting a glyph name from a + glyph index via FT_Get_Glyph_Name(). + Submitted by Sander van der Wal . + + * src/cff/cffgload.c (CFF_Parse_CharStrings): Added support for + deprecated operator `dotsection'. + Submitted by Sander van der Wal . + +2001-03-12 Werner Lemberg + + * src/psaux/t1decode.c (T1_Decoder_Parse_Charstrings): Fix error + messages. + + * INSTALL, docs/BUILD: We need GNU make 3.78.1 or newer. + +2001-03-12 Tom Kacvinsky + + * include/freetype/internal/psaux.h: Changed the lenIV member of + the T1_Decoder_ struct to be an FT_Int instead of an FT_UInt. + + * src/psaux/t1decode.c (T1_Decoder_Parse_Charstrings): Adjust + for lenIV seed bytes at the start of a decrypted subroutine. + + * src/cid/cidload.c (cid_read_subrs): Decrypt subroutines only + if lenIV >= 0. + + * src/cid/cidgload.c (cid_load_glyph): Decrypt charstrings only + if lenIV >= 0. + +2001-03-11 Werner Lemberg + + * TODO: Updated. + + * src/pcf/pcfread.c: Put READ_Fields() always in a conditional to + avoid compiler warnings. + +2001-03-10 Tom Kacvinsky + + * TODO: New file. + + * include/freetype/freetype.h: Added prototypes and notes for + three new functions: FT_RoundFix, FT_CeilFix, and FT_FloorFix. + * src/base/ftcalc.c (FT_RoundFix, FT_CeilFix, FT_FloorFix): Added + implementation code. + + * src/cid/cidobjs.c (CID_Init_Face): Use calculated units_per_EM, + and if that is not available, default to 1000 units per EM. Changed + assignment code for ascender and descender values. + * src/cid/cidload.c (parse_font_matrix): Added units_per_EM + processing. + (parse_font_bbox): Changed to use FT_Fixed number handling. + + * src/type1/t1objs.c (T1_Init_Face): Changed the assignment code + for ascender, descender, and max_advance_width. + * src/type1/t1load.c (parse_font_bbox): Changed to use FT_Fixed + number handling. + +2001-03-10 Henrik Grubbström + + * src/*/*.c: Added many casts to make code more 64bit-safe. + +2001-03-07 Werner Lemberg + + * INSTALL, docs/BUILD: We need GNU make 3.78 or newer. + +2001-03-07 Tom Kacvinsky + + * src/type1/t1objs.c (T1_Init_Face): Minor correction: We must wait + until parse_font_bbox is changed before we use logical shift rights + in the assignments of `root->ascender', `root->descender', and + `root->max_advance_width'. + + (T1_Done_Face): Free `char_name' table to avoid a memory leak. + Submitted by Sander van der Wal . + +2001-03-05 Tom Kacvinsky + + * src/cff/cffgload.c (CFF_Load_Glyph): Set glyph control data to the + the Type 2 glyph charstring (used by conversion programs). + Submitted by Ha Shao . + +2001-03-04 Antoine Leca + + * include/freetype/ttnameid.h: Correct a stupid typo which prevented + correct compilation (TT_MS_LANGID_TIGRIGNA_ETHIOPIA appeared twice). + +2001-03-04 Werner Lemberg + + * src/autohint/ahtypes.h (AH_Hinter): Add elements + `disable_horz_edges', `disable_vert_edges'. + * src/autohint/ahhint.c (ah_hint_edges_3, ah_hinter_hint_edges): Use + them (and remove static variables with the same names). + * src/pcf/pcfutil.c (BitOrderInvert): Add `const'. + * docs/glnames.py: Updated to latest pstables.h changes. + + * builds/unix/detect.mk: Add test for Hurd. + * builds/hurd/detect.mk: Removed. + +2001-03-04 Sander van der Wal + + * src/psnames/pstables.h: Add more `const'. + * src/pcf/pcfutil.c: Ditto. + +2001-03-04 Werner Lemberg + + * src/base/ftglyph.c (FT_Glyph_To_Bitmap): Fixing typo + (FT_Glyph_Done -> FT_Done_Glyph). + +2001-03-01 Antoine Leca + + * include/freetype/ttnameid.h: Added some new Microsoft language + codes and LCIDs as found in Office Xp. + +2001-02-28 David Turner + + * builds/hurd/detect.mk: New file. Added support to detect the GNU + Hurd operating system as Unix-like. Fix submitted by Anthony Fok + . + + * src/type1/t1gload.c (T1_Load_Glyph): Set glyph control data to the + the Type 1 glyph charstring (used by conversion programs). + Submitted by Ha Shao . + +2001-02-22 David Turner + + * src/base/ftgrays.c (grays_sweep): The function didn't exit + immediately if `num_cells' was 0 as it should. Thanks to Boris for + finding this out. + + * src/base/ftglyph.c (FT_Glyph_To_Bitmap): Fixed memory leak when + bitmap rendering fails (thanks to Graham Asher). + +2001-02-13 Werner Lemberg + + * docs/docmaker.py (DocSection::add_element): Use + `self.print_error()'. + + * builds/unix/config.{guess,sub}: Updated (from ftp.gnu.org). + +2001-02-13 David Turner + + * docs/docmaker.py, include/freetype/*.h: Updated the DocMaker + script to support chapters and section block ordering. Updated the + public header files accordingly. + + * src/base/ftglyph.c (FT_Glyph_Copy): Advance width and glyph format + were not correctly copied. + +2001-02-08 Tom Kacvinsky + + * src/cff/cffparse.c (cff_parse_font_matrix): Removed an + unnecessary fprintf( stderr, ... ). + +2001-02-07 Tom Kacvinsky + + * src/type1/t1objs.c (T1_Init_Face): Added code to get the + units_per_EM from the value assigned in parse_font_matrix, if + available. Default to 1000 if not available. + + * src/cff/cffparse.c (cff_parse_font_matrix): Added logic to get + the units_per_EM from the FontMatrix. + + (cff_parse_fixed_thousand): New function. Gets a real number from + the CFF font, but multiplies by 1000 (this is to avoid rounding + errors when placing this real number into a 16.16 fixed number). + + (cff_parse_real): Added code so that the integer part is moved + into the high sixteen bits of the 16.16 fixed number. + + * src/cff/cffobjs.c (CFF_Init_Face): Added logic to get the units + per EM from the CFF dictionary, if available. + + * include/freetype/internal/cfftypes.h: In struct CFF_Font_Dict_, + added a units_per_em member to facilitate passing of units_per_em + from function cff_parse_font_matrix. + + * src/type1/t1load.c (is_alpha): Make `-' a legal alphanumeric + character. This is so that font names with `-' are fully parsed, + etc... + +2001-02-02 Werner Lemberg + + * src/psaux/psobjs.c (shift_elements): Remove if clause (which is + obsolete now). + + (reallocate_t1_table, PS_Table_Done): Replace REALLOC() with ALLOC() + + MEM_Copy() to avoid a memory bug. + +2001-02-01 David Turner + + * docs/docmaker.py: Improved the index sorting routine to place + capital letters before small ones. Added the `' marker to + section blocks in order to give the order of blocks. + +2001-01-30 Antoine Leca + + * include/freetype/ttnameid.h: Latest updates to Microsoft language + ID codes. + +2001-01-24 Tom Kacvinsky + + * src/cff/t1load.c (parse_font_matrix): Added heuristic to get + units_per_EM from the font matrix. + + (parse_dict): Deleted test to see whether the FontInfo keyword has + been seen. Deletion of this test allows fonts without FontInfo + dictionaries to be parsed by the Type 1 driver. + + (T1_Open_Face): Deleted empty subroutines array test to make sure + fonts with no subroutines still are parsed. + +2001-01-17 Francesco Zappa Nardelli + + * src/pcfread.c (pcf_get_properties, pcf_get_metrics, + pcf_get_bitmaps): Fix compiler errors. + +2001-01-11 David Turner + + * src/pcf/pcfread.c: Removed some compilation warnings related + to comparison of signed vs. unsigned integers. + + * include/freetype/internal/ftdebug.h: Changed the debug trace + constants from trace_t2xxxx to trace_cffxxxx to be able to compile + the CFF driver in debug mode. + +2001-01-11 Matthew Crosby + + * builds/unix/freetype-config.in: Fix problems with separate + --prefix and --exec-prefix. + +2001-01-11 David Turner + + * docs/docmaker.py: Added cross-references generation as well as + more robust handling of pathname wildcard matching. + +2001-01-10 Werner Lemberg + + * docs/docmaker.py: Minor improvements to reduce unwanted spaces + and empty lines in output. + +2001-01-09 David Turner + + * docs/docmaker.py: Improved script to generate table of contents + and index pages. It also supports wildcards on non Unix systems. + + * include/freetype/*.h, include/freetype/cache/*.h: Updated comments + to include section definitions/delimitations for the API Reference + generator. + + * include/freetype/freetype.h: Moved declaration of + `FT_Generic_Finalizer' and the `FT_Generic' structure to... + * include/freetype/fttypes.h: here. + +2001-01-04 Werner Lemberg + + * include/freetype/ttnameid.h: Updated Unicode code range comments. + +2001-01-03 Tom Kacvinsky + + * src/cff/rules.mk: Use cffgload.{c,h} instead of t2gload.{c,h}. + + * include/freetype/internal/internal.h: Changed to use cfftypes.h + (cfferrs.h) instead of t2types.h (t2errors.h, respectively). + + * include/freetype/internal/cfftypes.h: Merged in changes from + t2types.h and made this the canonical `types' header for the CFF + driver. + + * include/freetype/internal/t2types.h: This file was merged with + cfftypes.h and is no longer necessary. + + * include/freetype/internal/t2errors.h: Renamed to cfferrs.h. + + * src/cff/cffobjs.c, src/cff/cffobjs.h, src/cff/cffparse.c, + src/cff/cffdrivr.c, src/cff/cff.c, src/cff/cffload.c, + src/cff/cffgload.c, src/cff/cffgload.h: Changed to use + cffgload.{c,h} instead of t2gload.{c,h}. All occurrences of t2_ + (T2_) were replaced with cff_ (CFF_, respectively). + + * src/cff/t2gload.h: Renamed cffgload.h. + + * src/cff/t2gload.c: Renamed cffgload.c + +2000-01-02 Jouk Jansen + + * builds/vms: Support files for VMS architecture added. + * descrip.mms, src/*/descrip.mms: VMS makefiles added. + * README.VMS: New file. + +2000-01-01 Werner Lemberg + + * LICENSE.TXT: Added info about PCF driver license. + +2001-01-01 Francesco Zappa Nardelli + + * src/pcf/*: New driver module for PCF font format (used in + X Window System). + * include/freetype/internal/ftdebug.h (FT_Trace): Added values for + PCF driver. + * include/freetype/internal/pcftypes.h: New file. + * include/freetype/config/ftmodule.h: Added PCF driver module. + +2001-01-01 Werner Lemberg + + * src/winfonts/winfnt.c (FNT_Get_Char_Index): Fix parameter type. + +2000-12-31 Werner Lemberg + + * builds/modules.mk (clean_module_list): Fixed deletion of module + file in case `make make_module_list' is called before `make setup'. + +2000-12-30 Werner Lemberg + + * src/cff/cffload.c (CFF_Load_Charset): Improved error messages. + (CFF_Load_Charset, CFF_Load_Encoding): Remove unnecessary variable + definition. + +2000-12-30 Tom Kacvinsky + + * include/freetype/internal/t2types.h, + include/freetype/internal/cfftypes.h: Changed the structures for + CFF_Encoding and CFF_Encoding for the new implementations of the + charset and encoding parsers in the CFF driver. + + * src/cff/t2gload.c (t2_lookup_glyph_by_stdcharcode, + t2_operator_seac): Added these functions for use in implementing the + seac emulation provided by the Type 2 endchar operator. + (T2_Parse_CharStrings): Added seac emulation for the endchar + operator. + + * src/cff/cffload.c (CFF_Load_Encoding, CFF_Load_Charset, + CFF_Done_Encoding, CFF_Done_Charset): Extended to load and parse the + charset/encoding tables, and free the memory used by them when the + CFF driver is finished with them. Added tables + + cff_isoadobe_charset + cff_expert_charset + cff_expertsubset_charset + cff_standard_encoding + cff_expert_encoding + + so that the encoding/charset parser can handle predefined encodings and + charsets. + +2000-12-24 Tom Kacvinsky + + * src/cff/t2gload.c (T2_Load_Glyph): Added code so that the font + transform is applied. + + * src/cff/cffparse.c (cff_parse_font_matrix): Added code so that + the font matrix numbers are scaled by 1/(matrix->yy). Also, the + offset vector now contains integer values instead of 16.16 fixed + numbers. + +2000-12-22 Tom Kacvinsky + + * src/autohint/ahhint.c (ah_hinter_load_glyph): + Removed unnecessary comments and commented-out code. + +2000-12-21 David Turner + + * src/cid/cidafm.c, src/cid/cidafm.h: removed un-needed files, + we'll work on supporting CID AFM files later I guess :-) + +2000-12-21 Tom Kacvinsky + + * src/autohint/ahhint.c (ah_hinter_load, ah_hinter_load_glyph): + Changed so that fonts with a non-standard FontMatrix render + correctly. Previously, the first glyph rendered from such a + font did not have the transformation matrix applied. + +2000-12-17 Werner Lemberg + + * *.mk: Added lots of `.PHONY' targets. + +2000-12-17 Karsten Fleischer + + * *.mk: Implemented `platform' target to disable auto-detection. + +2000-12-14 Werner Lemberg + + * docs/design/modules.html: Removed. Covered by design-*.html. + + * INSTALL: Added info about makepp. + +2000-12-14 David Turner + + Added support for clipped direct rendering in the smooth renderer. + This should not break binary compatibility of existing applications. + + * include/freetype/fttypes.h, include/freetype/ftimage.h: Move + definition of the FT_BBox structure from the former to the latter. + * include/freetype/ftimage.h: Add `ft_raster_flag_clip' value to + FT_Raster_Flag enumeration. + Add `clip_box' element to FT_Raster_Params structure. + * src/smooth/ftgrays.c (grays_convert_glyph): Implement it. + + * INSTALL: Updated installation instructions on Win32, listing the + new `make setup list' target used to list supported + compilers/targets. + + * src/raster/ftraster.c (ft_black_render): Test for unsupported + direct rendering before testing arguments. + +2000-12-13 David Turner + + * include/freetype/config/ft2build.h, + include/freetype/internal/internal.h: Fixed header inclusion macros + to use direct definitions. This is the only way to do these things + in a portable way :-( The rest of the code should follow shortly + though everything compiles now. + + * builds/compiler/intelc.mk, builds/compiler/watcom.mk: New files. + + * builds/win32/detect.mk: Added support for the Intel C/C++ + compiler, as well as _preliminary_ (read: doesn't work!) support for + Watcom. Also added a new setup target. Type `make setup list' for + a list of supported command-line compilers on Win32. + + * src/base/ftdebug.c: Added dummy symbol to avoid empty file if + conditionals are off. + +2000-12-13 Werner Lemberg + + * builds/unix/ftsystem.c: Fixed typos. Fixed inclusion of wrong + ftconfig.h file. + +2000-12-12 Werner Lemberg + + * include/freetype/config/ft2build.h (FT2_ROOT, FT2_CONFIG_ROOT): + Removed. ANSI C doesn't (explicitly) allow macro expansion in + arguments using `##'. + (FT2_PUBLIC_FILE, FT2_CONFIG_FILE, FT2_INTERNAL_FILE): Use directory + names directly. Make them configurable. Use `##' to strip leading + and trailing spaces from arguments. + + * builds/unix/ft2unix.h: Adapted. + + * src/base/ftsystem.c (ft_alloc, ft_realloc, ft_free, ft_io_stream, + ft_close_stream): Use FT_CALLBACK_DEF. + + * builds/unix/ftsystem.c: Use new header scheme. + (FT_Done_Memory): Use free() from FT_Memory structure. + + * src/base/ftinit.c, src/base/ftmac.c: Header scheme fixes. + +2000-12-11 Werner Lemberg + + * include/freetype/config/ft2build.h (FT2_CONFIG_ROOT, + FT2_PUBLIC_FILE, FT2_CONFIG_FILE, FT2_INTERNAL_FILE, + FT_SOURCE_FILE): Use `##' operator to be really ANSI C compliant. + +2000-12-09 Werner Lemberg + + * builds/unix/detect.mk: Remove unused USE_CFLAGS variable. + +2000-12-08 Werner Lemberg + + * */*.h: Changed body inclusion macro names to start and end with + `__' (those which haven't converted yet). Fixed minor conversion + issues. + + * src/winfonts/winfnt.c: Updated to new header inclusion scheme. + + * src/truetype/ttinterp.c: Remove unused CALC_Length() macro. + +2000-12-07 David Turner + + * */*.[ch]: Changed source files to adhere to the new + header inclusion scheme. Not completely tested but works for now + here. + + * src/cff/t2driver.c: Renamed and updated to... + * src/cff/cffdrivr.c: New file. + * src/cff/t2driver.h: Renamed and updated to... + * src/cff/cffdrivr.h: New file. + * src/cff/t2load.c: Renamed and updated to... + * src/cff/cffload.c: New file. + * src/cff/t2load.h: Renamed and updated to... + * src/cff/cffload.h: New file. + * src/cff/t2objs.c: Renamed and updated to... + * src/cff/cffobjs.c: New file. + * src/cff/t2objs.h: Renamed and updated to... + * src/cff/cffobjs.h: New file. + * src/cff/t2parse.c: Renamed and updated to... + * src/cff/cffparse.c: New file. + * src/cff/t2parse.h: Renamed and updated to... + * src/cff/cffparse.h: New file. + * src/cff/t2tokens.h: Renamed and updated to... + * src/cff/cfftoken.h: New file. + + * src/cff/cff.c, src/cff/rules.mk: Updated. + +2000-12-06 David Turner + + * src/cache/ftlru.c (FT_Lru_Done): Fixed memory leak. + +2000-12-06 Werner Lemberg + + * builds/module.mk: Replaced `xxx #' with `xxx$(space). + * builds/os2/detekt.mk, builds/win32/detekt.mk: Moved comment to + avoid trailing spaces in variable. + * builds/freetype.mk: Use $(D) instead of $D to make statement more + readable. + + * docs/docmaker.py: Formatting. + +2000-12-05 David Turner + + * src/psaux/psauxmod.c: Fixed a broken inclusion of component + header files (an FT_FLAT_COMPILE test was missing). + + * src/cache/ftcmanag.c (FTC_Manager_Done): Fixed a bug that caused + an occasional crash when the function was called (due to a dangling + pointer). + + * src/base/ftsystem.c (FT_Done_Memory): Fixed an obvious bug: + The ANSI `free()' function was called instead of `memory->free()'. + + * docs/docmaker.py: Added section filtering, multi-page generation + (index page generation is still missing though). + +2000-12-04 David Turner + + * builds/unix/install.mk, builds/unix/ft2unix.h: The file `ft2unix.h' + is now installed as for Unix systems. Note that we + still use the `freetype2/freetype' installation path for now. + + * */*.[ch]: Now using as the default build and setup + configuration file in all public headers. Internal source files + still need some changes though. + + * builds/devel/ft2build.h, builds/devel/ftoption.h: Created a new + directory to hold all development options for both the Unix and + Win32 developer builds. + + * builds/win32/detect.mk, builds/win32/w32-bccd.mk, + builds/win32/w32-dev.mk: Changed the developer build targets to + `devel-gcc' and `devel-bcc' in order to be able to develop with the + Borland C++ compiler. + +2000-12-01 David Turner + + + * Version 2.0.1 released. + ========================= + + + * builds/unix/configure.in, builds/unix/configure, + builds/cygwin/configure.in, builds/cygwin/configure: Setting + `version_info' to 6:1:0 for the 2.0.1 release. + + * CHANGES: Added a summary of changes between 2.0.1 and 2.0. + + * builds/unix/ftconfig.in, builds/cygwin/ftconfig.in: Changes + to allow compilation under Unix with the Unix-specific config + files. + +2000-12-01 Werner Lemberg + + * INSTALL: Revised. + * builds/compiler/bcc-dev.mk, builds/compiler/visualage.mk, + builds/compiler/bcc.mk, builds/win32/w32-bcc.mk, + builds/win32/w32-bccd.mk: Revised. + * include/freetype/config/ftbuild.h, + include/freetype/internal/internal.h: Revised. + * include/freetype/ftimage.h: Updated to new header inclusion scheme. + +2000-11-30 Werner Lemberg + + * builds/toplevel.mk (.PHONY): Adding `distclean'. + * builds/unix/detect.mk (.PHONY): Adding `devel', `unix', `lcc', + `setup'. + +2000-11-30 David Turner + + * INSTALL: Slightly updated the quick starter documentation to + include IDE compilation, prevent against BSD Make, and specify `make + setup' instead of a single `make' for build configuration. + + * include/config/ftbuild.h, include/internal/internal.h: Added new + configuration files used to determine the location of all public, + configuration, and internal header files for FreeType 2. Modified + all headers under `include/freetype' to reflect this change. Note + that we still need to change the library source files themselves + though. + + * builds/compiler/bcc.mk, builds/compiler/bcc-dev.mk, + builds/win32/w32-bcc.mk, builds/win32/w32-bccd.mk, + builds/win32/detect.mk: Added new files to support compilation with + the free Borland C++ command-line compiler. Modified the detection + rules to recognize the new `bcc32' target in `make setup bcc32'. + + * src/sfnt/ttcmap.c, src/sfnt/ttpost.c, src/sfnt/ttsbit.c, + src/truetype/ttobjs.c, src/truetype/ttgload.c, + src/truetype/ttinterp.c: Fixed a few comparisons that Borland C++ + didn't really like. Basically, this compiler complains when FT_UInt + is compared to FT_UShort (apparently, it promotes `UShort' to `Int' + in these cases). + +2000-11-30 Tom Kacvinsky + + * t2objs.c (T2_Init_Face): Added calculation of `face->height' for + pure CFF fonts. + + * t1objs.c (T1_Init_Face): Fixed computation of `face->height'. + +2000-11-29 David Turner + + * src/base/ftbbox.c (BBox_Conic_Check): Fixed a really stupid + bug in the formula used to compute the conic Bézier extrema + of non-monotonous arcs. + +2000-11-29 Werner Lemberg + + * src/base/ftcalc.c (FT_SqrtFixed), src/base/ftobjs.c + (FT_Set_Renderer): Use FT_EXPORT_DEF. + * src/cache/ftcimage.c (FTC_Image_Cache_Lookup), + src/cache/ftcmanag.c (FTC_Manager_Done, FTC_Manager_Reset, + FTC_Manager_Lookup_Face, FTC_Manager_Lookup_Size, + FTC_Manager_Register_Cache), src/cache/ftcsbits.c + (FTC_SBit_Cache_Lookup): Ditto. + + * src/include/freetype/cache/ftcglyph.h (FTC_GlyphNode_Init), + src/include/freetype/ftmac.h (FT_New_Face_From_FOND): Use FT_EXPORT. + +2000-11-29 Werner Lemberg + + * src/sfnt/sfdriver.c: Include ttsbit.h and ttpost.h only + conditionally. + + * src/truetype/ttdriver.c (Set_Char_Sizes, Set_Pixel_Sizes): Set + `size->strike_index' only conditionally. + + * src/type1/t1driver.c, src/type1/t1objs.c: Include t1afm.h only + conditionally. + + * src/winfonts/winfnt.h: Move all type definitions to... + * src/include/freetype/internal/fnttypes.h: New file. + * src/winfonts/winfnt.c: Use it. + +2000-11-29 ??? ??? + + * include/freetype/internal/ftdebug.h: Replaced FT_CAT and FT_XCAT + with a direct solution (which also satisfies picky compilers). + +2000-11-28 YAMANO-UCHI Hidetoshi + + * src/truetype/ttobjs.c (TT_Init_Size): Fix #ifdef's to work with + disabled interpreter also. + + * src/base/ftnames.c (FT_Get_Sfnt_Name_Count): Fix incorrect + parentheses. + +2000-11-26 Tom Kacvinsky + + * src/cff/t2gload.c (T2_Parse_CharStrings): Added logic to glyph + width setting code to take into account even/odd argument counts + and glyph width operand before endchar/hmoveto/vmoveto. + +2000-11-26 Werner Lemberg + + * builds/ansi/ansi.mk: Fix inclusion order of files. + +2000-11-26 Keith Packard + + * src/type1/t1objs.c (T1_Init_Face): Compute style flags. + +2000-11-26 Werner Lemberg + + * builds/compiler/ansi-cc.mk (CLEAN_LIBRARY): Fix rule and + conditional. + +2000-11-23 Werner Lemberg + + * src/type1/t1load.c (parse_subrs, parse_charstrings): Use decrypt + function from PSAux module. + + * src/type1/t1parse.c (T1_Done_Parse): Renamed to... + (T1_Finalize_Parser): New function (to avoid name clash with a + function in the PSAux module). + (T1_Decrypt): Removed since it is duplicated in the PSAux module. + (T1_Get_Private_Dict): Added `psaux' as new parameter; use decrypt + function from PSAux module. + + * src/type1/t1parse.h: Adapted. + +2000-11-22 Tom Kacvinsky + + * src/cff/t2objs.c (T2_Init_Face): For pure CFF fonts, set + `root->num_faces' to `cff->num_faces' and set `units_per_EM' + to 1000. + + * src/cff/t2parse.c (parse_t2_real): Fixed real number parsing + loop. + + * src/cff/t2load.c (T2_Get_String): Called T2_Get_Name with a + sid that was off by one. + +2000-11-16 David Turner + + * src/autohint/ahtypes.h (AH_Hinter): Added new fields to control + auto-hinting of synthetic Type 1 fonts. + + * src/autohint/ahhint.c (ah_hinter_load, ah_hinter_load_glyph): + Added auto-hinting support of synthetic Type 1 fonts. + +2000-11-12 Tom Kacvinsky + + * src/sfnt/ttload.c (TT_LookUp_Table, TT_Load_Generic_Table): Change + tracing output. + + * src/sfnt/sfobjs.c (SFNT_Load_Face): Set boolean variable + `has-outline' to true only if the font has a `glyf' or `CFF ' table. + +2000-11-11 Werner Lemberg + + * builds/win32/visualc/freetype.dsp: Fix raster1->raster and + type1z->type1. + +2000-11-11 Tom Kacvinsky + + * builds/unix/freetype-config.in, builds/cygwin/freetype-config.in: + Added a --libtool option. When freetype-config --libtool is + invoked, the absolute path to the libtool convenience library + is returned. + +2000-11-11 Werner Lemberg + + * builds/cygwin/cygwin-def.in: Same fix as previous. + +2000-11-10 Tom Kacvinsky + + * builds/unix/unix-def.in: Add + + INSTALL_PROGRAM := @INSTALL_PROGRAM@ + INSTALL_SCRIPT := @INSTALL_SCRIPT@ + + so that installation of freetype-config does not fail. + +2000-11-10 Werner Lemberg + + * builds/cygwin/freetype-config.in, builds/unix/freetype-config.in: + Move test down for empty --exec-prefix. + Fix --version. + + * builds/cygwin/install.mk, builds/unix/install.mk: Use + $(INSTALL_SCRIPT) for installation of freetype-config. + + * builds/cygwin/install.mk: Fix clean target names. + +2000-11-09 David Turner + + + * Version 2.0 released. + ======================= + +---------------------------------------------------------------------------- + +Copyright 2000, 2001, 2002, 2007 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, modified, +and distributed under the terms of the FreeType project license, +LICENSE.TXT. By continuing to use, modify, or distribute this file you +indicate that you have read the license and understand and accept it +fully. + + +Local Variables: +version-control: never +coding: utf-8 +End: diff --git a/ChangeLog.21 b/ChangeLog.21 new file mode 100644 index 0000000..d6371d1 --- /dev/null +++ b/ChangeLog.21 @@ -0,0 +1,9439 @@ +2005-06-08 Werner Lemberg + + + * Version 2.1.10 released. + ========================== + + + * src/pcf/readme: Renamed to... + * src/pcf/README: This. + +2005-06-07 Detlef Würkner + + * builds/amiga/*: Added copyright notes, reworked some comments. + +2005-06-05 Werner Lemberg + + * Add copyright notices to all files which don't have one. + + * docs/license.txt: Renamed to... + * docs/LICENSE.TXT: This. + * docs/FTL.txt: Renamed to... + * docs/FTL.TXT: This. + * docs/GPL.txt: Renamed to... + * docs/GPL.TXT: This. + + * docs/PATENTS: Slightly reworded. Suggested by Sylvain Beucler + . + +2005-06-04 Werner Lemberg + + * include/freetype/ftimage.h (FT_Outline_MoveToFunc, + FT_Outline_LineToFunc, FT_Outline_ConicToFunc, + FT_Outline_CubicToFunc, FT_Raster_RenderFunc), + include/freetype/ftrender.h (FT_Glyph_TransformFunc, + FT_Renderer_RenderFunc, FT_Renderer_TransformFunc): Don't use + `const' to stay compatible with FreeType 2.1.9. + +2005-06-01 Adam D. Moss + + * src/base/ftstroke.c (ft_stroker_inside): Revert `sigma' patch from + 2004-07-11; this gives much better results under normal + circumstances. + +2005-05-30 Chia I Wu + + * include/freetype/ftbitmap.h (FT_Bitmap_Embolden): Minor + documentation improvements. + + * include/freetype/ftoutln.h (FT_Outline_Embolden): Fix typos. + + * src/base/ftbitmap.c (FT_Bitmap_Embolden): Add support for bitmap + of pixel_mode FT_PIXEL_MODE_GRAY2 or FT_PIXEL_MODE_GRAY4. + If xstr is larger than 8 and bitmap is of pixel_mode + FT_PIXEL_MODE_MONO, set xstr to 8 instead of returning error. + +2005-05-29 Chia I Wu + + * src/base/ftbitmap.c (FT_Bitmap_Embolden): Fix emboldening bitmap + of mode FT_PIXEL_MODE_GRAY. Also add support for mode + FT_PIXEL_MODE_LCD and FT_PIXEL_MODE_LCD_V. + (ft_bitmap_assure_buffer): FT_PIXEL_MODE_LCD and FT_PIXEL_MODE_LCD_V + should have ppb (pixel per byte) 1. + Zero the padding when there's no need to allocate memory. + + * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Handle slot->advance + too. + More suited emboldening strength. + +2005-05-28 Chia I Wu + + * src/base/ftbitmap.c (FT_Bitmap_Embolden): Handle negative pitch. + Handle FT_PIXEL_MODE_GRAY with num_gray != 256. + Improve speed for FT_PIXEL_MODE_GRAY. + (ft_bitmap_assure_buffer): Accept FT_PIXEL_MODE_LCD and + FT_PIXEL_MODE_LCD_V. + +2005-05-27 Chia I Wu + + * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Initialize `error'. + + * src/base/ftobjs.c (ft_cmap_done_internal): New function. + (FT_CMap_Done): Remove cmap from cmap list. + (destroy_charmaps, FT_CMap_New): Don't call FT_CMap_Done but + ft_cmap_done_internal. + +2005-05-26 Werner Lemberg + + * docs/GPL.txt: Update postal address of FSF. + +2005-05-26 Chia I Wu + + * include/freetype/ftbitmap.h (FT_Bitmap_Embolden): Improve + documentation. + + * src/base/ftsynth.c (FT_BOLD_THRESHOLD): Removed. + (FT_GlyphSlot_Embolden): Check whether slot is bitmap owner. + Always modify the metrics. + +2005-05-24 Werner Lemberg + + * docs/CHANGES: Updated. + +2005-05-24 Chia I Wu + + * include/freetype/ftbitmap.h (FT_Bitmap_Embolden): New declaration. + + * include/freetype/ftoutln.h (FT_Outline_Embolden): New declaration. + + * src/base/ftbitmap.c (ft_bitmap_assure_buffer): New auxiliary + function. + (FT_Bitmap_Embolden): New function. + + * src/base/ftoutln.c (FT_Outline_Embolden): New function. + + * src/base/ftsynth.c: Don't include FT_INTERNAL_CALC_H and + FT_TRIGONOMETRY_H but FT_BITMAP_H. + (FT_GlyphSlot_Embolden): Use FT_Outline_Embolden or + FT_Bitmap_Embolden. + +2005-05-24 Werner Lemberg + + * configure: Always remove config.mk, builds/unix/unix-def.mk, and + builds/unix/unix-cc.mk. This fixes repeated calls of the script. + Reported by Nelson Beebe and Behdad Esfahbod. + + * README.CVS: Mention file permissions. + +2005-05-23 Werner Lemberg + + * builds/amiga/makefile.os4 (WARNINGS), builds/compiler/gcc-dev.mk + (CFLAGS), builds/compiler/gcc.mk (CFLAGS): Remove + -fno-strict-aliasing. + + * src/sfnt/rules.mk (SFNT_DRV_SRC): Don't include ttsbit0.c -- + it is currently loaded from ttsbit.c. + +2005-05-23 Behdad Esfahbod + + Say you have `(Foo*)x' and want to assign, pass, or return it as + `(Bar*)'. If you simply say `x' or `(Bar*)x', then the C compiler + would warn you that type casting incompatible pointer types breaks + strict-aliasing. The solution is to cast to `(void*)' instead which + is the generic pointer type, so the compiler knows that it should + make no strict-aliasing assumption on `x'. But the problem with + `(void*)x' is that seems like in C++, unlike C, `void*' is not a + generic pointer type and assigning `void*' to `Bar*' without a cast + causes an error. The solution is to cast to `Bar*' too, with + `(Bar*)(void*)x' as the result -- this is what the patch does. + + * include/freetype/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP), + include/freetype/cache/ftcmru.h (FTC_MRULIST_LOOKUP_CMP): Remove + cast on lvalue, use a temporary pointer instead. + Cast temporarily to (void*) to not break strict aliasing. + + * include/freetype/internal/ftmemory.h (FT_MEM_ALLOC, + FT_MEM_REALLOC, FT_MEM_QALLOC, FT_MEM_QREALLOC, FT_MEM_FREE), + src/base/ftglyph.c (FT_Glyph_To_Bitmap): Cast temporarily to (void*) + to not break strict aliasing. + + * src/base/ftinit.c (FT_USE_MODULE): Fix wrong type information. + + * builds/unix/configure.ac (XX_CFLAGS): Remove -fno-strict-aliasing. + +2005-05-23 David Turner + + Fix Savannah bug #12213 (incorrect behaviour of the cache sub-system + in low-memory conditions). + + * include/freetype/cache/ftccache.h (FTC_CACHE_TRYLOOP, + FTC_CACHE_TRYLOOP_END): New macros. + + * src/cache/ftccache.c (FTC_Cache_NewNode), src/cache/ftcsbits.c + (ftc_snode_compare): Use FT_CACHE_TRYLOOP and FTC_CACE_TRYLOOP_END. + +2005-05-23 Werner Lemberg + + * src/base/rules.mk (BASE_SRC): Don't add ftsynth.c here but... + (BASE_EXT_SRC): Here. + +2005-05-22 Werner Lemberg + + * src/base/ftrfork.c (raccess_guess_apple_generic): Mark + `version_number' and `entry_length' as unused. + (raccess_guess_linux_double_from_file_name): Remove `memory'. + (raccess_make_file_name): Mark `error' as unused. + + * src/bdf/bdflib.c (_bdf_parse_properties): Remove `memory'. + + * src/cid/cidobjs.c (cid_face_init): Remove `psnames'. + + * src/sfnt/sfobjs.c (sfnt_load_face): Remove `memory'. + + * src/truetype/ttgxvar.c (ft_var_readpackedpoints, + ft_var_readpackeddeltas, ft_var_load_avar): Mark `error' as unused. + + * src/base/rules.mk (BASE_SRC): Add ftsynth.c. + +2005-05-21 David Turner + + * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Fix a bug that + produced unpleasant artefacts when trying to embolden very sharp + corners. + +2005-05-20 Werner Lemberg + + * docs/CHANGES: Updated. + +2005-05-20 Chia I Wu + + * src/base/ftbitmap.c: Don't include FT_FREETYPE_H and FT_IMAGE_H + but FT_BITMAP_H. + (FT_Bitmap_Copy): New function (from ftglyph.c). + + * include/freetype/ftbitmap.h (FT_Bitmap_Copy): New public + definition. + + * src/base/ftglyph.c: Include FT_BITMAP_H. + (ft_bitmap_copy): Move to ftbitmap.c. + (ft_bitmap_glyph_init): Remove `memory' variable. + Create new bitmap object if FT_GLYPH_OWN_BITMAP isn't set. + (ft_bitmap_glyph_copy): Use FT_Bitmap_Copy. + (ft_bitmap_glyph_done): Use FT_Bitmap_Done. + (ft_outline_glyph_init): Use FT_Outline_Copy. + + * src/base/ftoutln.c (FT_Outline_Copy): Handle source == target. + (FT_Outline_Done_Internal): Check for valid `memory' pointer. + (FT_Outline_Translate, FT_Outline_Reverse, FT_Outline_Render, + FT_Outline_Transform): Check for valid `outline' pointer. + + * src/base/ftobjs.c (FT_New_GlyphSlot): Prepend glyph slot to + face->glyph, otherwise a new second glyph slot cannot be created. + (FT_Done_GlyphSlot): Fix memory leak. + (FT_Open_Face): Updated -- face->glyph is already managed by + FT_New_GlyphSlot. + + * src/type42/t42objs.c (T42_GlyphSlot_Done): Updated. + +2005-05-20 Kirill Smelkov + + * include/freetype/ftimage.h (FT_Raster_Params), + include/freetype/ftoutln.h (FT_Outline_Translate, + FT_Outline_Transform), src/base/ftoutln.c (FT_Outline_Translate, + FT_Outline_Transform): Decorate parameters with `const' where + appropriate. + Update all callers. + + * src/raster/ftraster.c (ft_black_reset), src/smooth/ftgrays.c + (gray_raster_reset): Remove `const' from `pool_base' argument. + +2005-05-18 Kirill Smelkov + + * src/raster/ftmisc.h: New file. Only needed if ftraster.c is + compiled as stand-alone. + + * src/raster/ftraster.c: Add comment how to compile as stand-alone. + s/FT_CONFIG_OPTION_STATIC_RASTER/FT_STATIC_RASTER/. + s/TT_STATIC_RASTER/FT_STATIC_RASTER/. + [_STANDALONE_]: Include ftimage.h and ftmisc.h. + (FT_TRACE1, FT_TRACE6, ft_memset, FT_MEM_ZERO): Define + conditionally. + (Render_Glyph, Render_Gray_Glyph): Return Raster_Err_None (or + Raster_Err_Unsupported). + (ft_black_new) [_STANDALONE_]: Fix type of `the_raster'. + (ft_black_init, ft_black_reset, ft_black_set_mode, ft_black_render): + Use `ras', not `raster'. + (ft_black_done): Use FT_UNUSED_RASTER. + (Horizontal_Sweep_Init, Horizontal_Sweep_Step, + Horizontal_Gray_Sweep_Span): Use FT_UNUSED_RASTER. + +2005-05-18 Werner Lemberg + + * docs/announce: Start updating. + + * docs/CHANGES: Updated. + +2005-05-16 Vitaliy Pasternak + + * builds/win32/visualc/freetype.vcproj: Updated. + Exclude debug info for `Release' versions to reduce library size. + +2005-05-16 Werner Lemberg + + * src/base/ftobjs.c (FT_Open_Face): Make it work as documented, this + is, ignore `aface' completely if face_index < 0. Reported by David + Osborn . + +2005-05-16 Kirill Smelkov + + * include/freetype/ftimage.h (FT_Outline_MoveToFunc, + FT_Outline_LineTo_Func, FT_Outline_ConicToFunc, + FT_Outline_CubicToFunc), src/smooth/ftgrays.c (gray_render_conic, + gray_render_cubic, gray_move_to, gray_line_to, gray_conic_to, + gray_cubic_to, gray_render_span, gray_sweep): Decorate parameters + with `const' where appropriate. + +2005-05-11 Kirill Smelkov + + * include/freetype/ftimage.h (FT_Raster_RenderFunc), + include/freetype/ftrender.h (FT_Glyph_TransformFunc, + FT_Renderer_Render_Func, FT_Renderer_TransformFunc), + src/base/ftglyph.c (ft_outline_glyph_transform), + src/raster/ftrend1.c (ft_raster1_transform, ft_raster1_render), + src/smooth/ftgrays.c (FT_Outline_Decompose, gray_raster_render), + src/smooth/ftsmooth.c (ft_smooth_transform, + ft_smooth_render_generic, ft_smooth_render, ft_smooth_render_lcd, + ft_smooth_render_lcd_v): Decorate parameters with `const' where + appropriate. + + * src/raster/ftraster.c (RASTER_RENDER_POOL): Removed. Obsolete. + (ft_black_render): Decorate parameters with `const' where + appropriate. + +2005-05-11 Werner Lemberg + + * src/sfnt/ttcmap.c (tt_cmap4_set_range): Fix typo (FT_PEEK_SHORT -> + FT_PEEK_USHORT) which caused crashes. Reported by Ismail Donmez + . + +2005-05-08 Werner Lemberg + + * include/freetype/internal/ftserv.h (FT_FACE_FIND_GLOBAL_SERVICE) + [__cplusplus]: Fix typo. + +2005-05-07 Werner Lemberg + + Handle unsorted SFNT type 4 cmaps correctly (reported by Dirck + Blaskey ). + + * src/sfnt/ttcmap.h (TT_CMap): Add member `unsorted'. + * src/sfnt/ttcmac.c: Use SFNT_Err_Ok where appropriate. + + (tt_cmap0_validate, tt_cmap2_validate, tt_cmap6_validate, + tt_cmap8_validate, tt_cmap10_validate, tt_cmap12_validate): Use + `FT_Error' as return type. + (tt_cmap4_validate): Use `FT_Error' as return type. + Return error code for unsorted cmap. + (tt_cmap4_char_index, tt_cmap4_char_next): Use old code for unsorted + cmaps. + (tt_face_build_cmaps): Set `unsorted' variable in cmap. + +2005-05-07 Werner Lemberg + + * src/truetype/ttpload.c (tt_face_get_location): Fix typo. + +2005-05-06 Werner Lemberg + + * src/cff/cffobjs.c (cff_face_init): Set ppem value in top + dictionary for SFNT-based CFF. + +2005-05-05 Werner Lemberg + + Handle malformed `loca' table entries. + + * docs/TODO: Add some bugs which should be fixed. + + * include/freetype/internal/tttypes.h (TT_FaceRec): Add `glyf_len' + element. + + * src/truetype/ttpload.c (tt_face_load_loca): Get length of `glyf' + table. + (tt_face_get_location): Fix computation of `asize' for malformed + `loca' entries. + +2005-05-01 David Turner + + * Jamfile: Remove `otvalid' from the list of compiled modules. + + * include/freetype/internal/ftserv.h: Add compiler pragmas to get + rid of annoying warnings with Visual C++ compiler in maximum warning + mode. + + * src/autofit/afhints.c, src/autofit/aflatin.c, src/base/ftstroke.c, + src/bdf/bdfdrivr.c, src/cache/ftcbasic.c, src/cache/ftccmap.c, + src/cache/ftcmanag.c, src/cff/cffload.c, src/cid/cidload.c, + src/lzw/zopen.c, src/otvalid/otvgdef.c, src/pcf/pcfread.c, + src/sfnt/sfobjs.c, src/truetype/ttgxvar.c: Remove compiler warnings. + +2005-04-28 Werner Lemberg + + * docs/TODO: Updated. + +2005-04-24 Werner Lemberg + + * src/otvalid/otvcommn.c + (otv_GSUBGPOS_have_MarkAttachmentType_flag): Handle table == 0. + +2005-04-16 Werner Lemberg + + * src/cff/cffobjs.c (cff_face_init): Set default upem value in top + font dict also. + Handle font matrix settings in subfonts. + + * src/cff/cffgload.c (cff_slot_load): Use the correct font matrix + for CID-keyed fonts with subfonts. + + * docs/formats.txt: Updated. + +2005-04-14 Kirill Smelkov + + * include/freetype/freetype.h (FT_Vector_Transform), + include/freetype/ftimage.h (FT_Raster_Params), + include/freetype/ftoutln.h, src/base/ftoutln.c (FT_Outline_Get_CBox, + FT_Outline_Copy, FT_Outline_Transform, FT_Vector_Transform, + FT_Outline_Get_Bitmap), src/raster/ftraster.c (ft_black_render), + src/smooth/ftgrays.c (gray_raster_render): Decorate parameters with + `const' where appropriate. + +2005-04-14 Werner Lemberg + + * src/type1/t1load.c (parse_charstrings): Catch this non-standard + beginning of the /CharStrings dictionary: + + /CharStrings 118 dict def + Private begin + CharStrings begin + + * src/sfnt/ttsbit0.c (tt_sbit_decoder_load_image): Fix arguments + to call of tt_sbit_decoder_load_bitmap. + +2005-04-13 Werner Lemberg + + * docs/TODO: Updated. + + * autogen.sh: Use `--force' for all commands. + +2005-04-09 Werner Lemberg + + * src/pshinter/pshalgo.c (ps_hints_apply): Change scaling values + only if `fitted' is not zero. + +2005-04-06 Werner Lemberg + + * src/truetype/ttgload.c (tt_face_get_metrics) [FT_OPTIMIZE_MEMORY]: + Fix typo which sometimes causes wrong metrics for the last glyph. + +2005-04-04 David Turner + + * devel/ftoption.h, include/freetype/config/ftoption.h + (FT_OPTIMIZE_MEMORY): Comment out this macro for the upcoming 2.1.10 + release. + (*_CHESTER_*): Removed. No longer used. + + * src/autofit/afhints.c (af_axis_hints_new_segment, + af_axis_hints_new_edge): Small tweak to use less heap memory. + +2005-04-03 Werner Lemberg + + * src/type1/t1parse.c (T1_New_Parser): Relax the check for a valid + first line in the font. + +2005-04-03 Werner Lemberg + + * docs/CHANGES, include/freetype/freetype.h: Improve documentation + of FT_Set_Pixel_Sizes and FT_Set_Char_Size. + +2005-03-26 Detlef Würkner + + * builds/amiga/src/base/ftsystem.c (ft_amiga_stream_io): Fix buffer + offsets after a large read. + +2005-03-26 Werner Lemberg + + * src/autofit/afglobal.c (af_face_globals_get_metrics): + s/index/gidx/. + + * src/sfnt/ttsbit0.c (tt_sbit_decoder_load_image): Fix compiler + warnings. + + * src/sfnt/rules.mk (SFNT_DRV_SRC): Add ttsbit0.c. + + * src/sfnt/ttsbit0.h: Dummy file for build with `make'. + +2005-03-26 Detlef Würkner + + Update of the Amiga port. + + * builds/amiga/makefile, builds/amiga/makefile.os4, + builds/amiga/smakefile: Included the base extension files + (ftbitmap.c, ftotval.c, ftpfr.c, ftstroke.c, ftxf86.c). + +2005-03-25 Detlef Würkner + + Update of the Amiga port. + + * builds/amiga/makefile, builds/amiga/smakefile: Handle new modules. + + * builds/amiga/makefile.os4: Makefile for AmigaOS4 SDK. + + * builds/amiga/README: Updated. + + * builds/amiga/include/freetype/config/ftconfig.h: Handle gcc for + AmigaOS4. + + * builds/amiga/include/freetype/config/ftmodule.h: Handle new + modules. + + * builds/amiga/src/base/ftdebug.c: Updated to current version of + default ftdebug.c. + Add various include files and macros to have proper support for + both AmigaOS4 and older AmigaOS versions. + Don't declare KVPrintF explicitly. + Replace getenv with GetVar. + Actually enable debugging code. + + * builds/amiga/src/base/ftsystem.c: Major rewrite. + +2005-03-23 Werner Lemberg + + * tests/*: Removed. + +2005-03-23 Werner Lemberg + + * docs/CHANGES, docs/INSTALL.ANY: Updated. + + * include/freetype/ftmoderr.h: Replace `Autohint' with `Autofit'. + Add `OTvalid'. + + * src/autofit/aferrors.h: New file. + + * src/autofit/afglobal.c, src/autofit/afhints.c, + src/autofit/aflatin.c, src/autofit/afloader.c: s/FT_Err_/AF_Err_/. + Include aferrors.h. + + * src/autofit/rules.mk (AUTOF_DRV_H): Include aferrors.h. + + * src/otvalid/otverror.h: s/FT_Mod_Err_OTV/FT_Mod_Err_OTvalid/. + +2005-03-22 David Turner + + * src/autohint/*: Removed. + * Jamfile: Updated. + +2005-03-15 David Turner + + * src/bdf/bdflib.c: Remove compiler warnings. + (hash_rehash, hash_init): Don't call FT_MEM_ZERO. + (_bdf_list_t): Add `memory' field. + (_bdf_list_init, _bdf_list_done, _bdf_list_ensure): New functions. + (_bdf_shift, _bdf_join): Rename to... + (_bdf_list_shift, _bdf_list_join): This. + (_bdf_split): Renamed to... + (_bdf_list_split): This. Use new functions. + (bdf_internal_readstream): Removed. + (NO_SKIP): New macro. + (_bdf_readstream): Rewritten. + (bdf_create_property, _bdf_add_comment): Improve allocation. + (_bdf_set_default_spacing, _bdf_parse_glyphs): Updated. Improve + allocation. + (_bdf_parse_properties, _bdf_parse_start): Updated. + (bdf_load_font): Updated to use new functions. + + * src/type1/t1parse.c (check_type1_format): New function. + (T1_New_Parser): Use it to check font header before allocating + anything on the heap. + + * src/type42/t42parse.c (t42_parser_init): Modify functions to check + the font header before allocating anything on the heap. + + * include/freetype/internal/ftmemory.h (FT_ARRAY_MAX, + FT_ARRAY_CHECK): New macros. + + * src/base/ftstream.c (FT_Stream_TryRead): New function. + * include/freetype/internal/ftstream.h: Updated. + + * src/pcf/pcfread.c (pcf_read_TOC), src/pcf/pcfutil.c + (BitOrderInvert, TwoByteSwap, FourByteSwap): Minor fixes and + simplifications. Try to protect the PCF driver from doing stupid + things with broken fonts. + + * src/lzw/ftlzw.c (FT_Stream_OpenLZW): Check the LZW header before + doing anything else. This avoids unnecessary heap allocations + (400KByte of heap memory for the LZW decoder). + + * src/gzip/ftgzip.c (FT_Stream_OpenGZip): Ditto for the gzip + decoder, although the code savings are smaller. + + * docs/CHANGES: Updated. + +2005-03-10 David Turner + + * src/tools/glnames.py: Add comment to explain the compression + being used for the Adobe Glyph List. + +2005-03-10 Werner Lemberg + + * src/truetype/ttpload.c (tt_face_load_cvt, tt_face_load_fpgm): + Fix serious typo which prevented correct TT rendering. + + * include/freetype/internal/ftmemory.h: Undo change from 2005-03-03. + To suppress warnings it is sufficient to use `-fno-strict-aliasing'. + +2005-03-10 Werner Lemberg + + * src/tools/glnames.py: Formatted. + Format output to be in sync with other FreeType code. + Import `re' and `os.path'. + (StringTable) <__init__>: Add parameter to initialize master table + name. + (StringTable) : Don't pass master table name. + (StringTable) : Emit explanatory comment. + Simplify and make output more human readable. + (t1_bias, glyph_list, adobe_glyph_names): Removed. Unused. + (main): Use `basename' for file name in header. + + * src/psnames/pstables.h: Regenerated. + +2005-03-09 David Turner + + * src/tools/glnames.py: Rewrite the generator for the `pstables.h' + header file which contains various constant tables related to glyph + names. It now uses a different, more compact storage scheme that + saves about 20KB. This also closes Savannah bug #12262. + + * src/psnames/pstables.h: Regenerated. + + * src/psnames/psmodule.c (ps_unicode_value): Use + `ft_get_adobe_glyph_index', a new function defined in `pstables.h'. + (ps_get_macintosh_name, ps_get_standard_strings): Updated. + + * src/base/ftobjs.c (FT_Set_Char_Sizes): Handle fractional sizes + more carefully. This fixes Savannah bug #12263. + +2005-03-06 David Turner + + * src/otvalid/otvgsub.c, src/otvalid/otvgpos.c: Make static tables + constant. + + * src/autofit/aflatin.c (af_latin_metrics_init): Fix Savannah bug + #12212 (auto-hinter refuses to work if no Unicode charmap in font). + +2005-03-05 Werner Lemberg + + * autogen.sh: New script for bootstrapping. + + * README.CVS: New file which documents bootstrapping. + + * builds/unix/aclocal.m4, builds/unix/config.guess, + builds/unix/config.sub, builds/unix/configure, + builds/unix/ltmain.sh: Removed. + +2005-03-04 Werner Lemberg + + * src/base/ftutil.c: Include FT_INTERNAL_OBJECTS_H. + +2005-03-03 Werner Lemberg + + Various fixes for C and C++ compiling. + + * src/autofit/*: Add copyright messages. + + * src/autofit/afhints.c (af_glyph_hints_done): Don't use + `AF_Dimension' but `int' for loop counter. + + * src/autofit/aflatin.c (af_latin_metrics_init_widths): Don't use + `AF_Dimension' but `int' for loop counter. + Use proper enumeration value for `render_mode'. + (af_latin_metrics_scale_dim): Don't shadow variables. + (af_latin_hints_compute_segments): Use proper cast for `major_dir' + and `segment_dir'. + (af_latin_align_linked_edge, af_latin_hint_edges): Fix arguments of call to + `af_latin_compute_stem_width'. + (af_latin_hints_apply): Don't use `AF_Dimension' but `int' for loop + counter. + + * src/base/ftdbgmem.c (ft_mem_table_get_source, FT_DumpMemory): Use + proper cast for memory allocation. + + * src/cff/cffdrivr.c (cff_get_kerning): Use proper cast for + initialization of `sfnt'. + + * src/sfnt/sfdriver.c: Include `ttkern.h'. + + * src/sfnt/ttkern.c (tt_face_get_kerning): Don't shadow variables. + + * src/truetype/ttgload.c: Include `ttpload.h'. + +2005-03-03 David Turner + + * include/freetype/internal/ftmemory.h (FT_ALLOC, FT_REALLOC, + FT_QALLOC, FT_QREALLOC) [gcc >= 3.3]: Provide macro versions which + avoid compiler warnings. + (FT_NEW, FT_NEW_ARRAY, FT_RENEW_ARRAY, FT_QNEW, FT_QNEW_ARRAY, + FT_QRENEW_ARRAY, FT_ALLOC_ARRAY, FT_REALLOC_ARRAY): Updated. + + * include/freetype/internal/ftserv.h (FT_FACE_FIND_SERVICE, + FT_FACE_FIND_GLOBAL_SERVICE, FT_FACE_LOOKUP_SERVICE) [__cplusplus]: + Provide macro versions which avoid compiler warnings. + + * src/base/ftutil.c (ft_highpow2): New utility function. + + * include/freetype/internal/ftobjs.h: Updated. + + * src/pfr/pfrload.c (pfr_get_gindex, pfr_compare_kern_pairs, + pfr_sort_kerning_pairs): Don't define if FT_OPTIMIZE_MEMORY is set. + (pfr_phy_font_done): Don't handle `kern_pairs' if FT_OPTIMIZE_MEMORY + is set. + (pfr_phy_font_load): Don't call `pfr_sort_kerning_pairs' if + FT_OPTIMIZE_MEMORY is set. + + * src/pfr/pfrobjs.c (pfr_slot_load): Comment out some code which + doesn't work with broken fonts. + (pfr_face_get_kerning) [FT_OPTIMIZE_MEMORY]: Implement. + + * src/pfr/pfrtypes.h (PFR_KernItemRec): Optimize member types. + (PFR_NEXT_KPAIR): New macro. + (PFR_PhyFontRec): Don't define `kern_pairs' if FT_OPTIMIZE_MEMORY is + set. + + * src/sfnt/ttsbit0.c (tt_sbit_decoder_load_image): Introduce + temporary variable to avoid gcc warning. + (tt_face_load_sbit_image): Mark unused variables with FT_UNUSED. + + * src/truetype/ttpload.c (tt_face_load_loca) [FT_OPTIMIZE_MEMORY]: + Remove redundant variable. + + * include/freetype/config/ftmodule.h: Moving the order of drivers to + speed up font loading. The PCF and BDF loaders are still slow and + consume far too much memory. + +2005-03-03 Werner Lemberg + + * devel/ftoption.h: Updated to recent changes. + +2005-03-02 Werner Lemberg + + * src/autofit/afdummy.c, src/autofit/afdummy.h + (af_dummy_script_class): Fix type. + + * src/autofit/aflatin.c, src/autofit/aflatin.h + (af_latin_script_class): Fix type. + + * src/autofit/rules.mk (AUTOF_DRV_SRC): Fix typo. + +2005-03-01 David Turner + + * src/sfnt/ttkern.c (tt_face_load_kern, tt_face_get_kerning), + src/sfnt/ttsbit0.c (tt_face_load_sbit_strikes, + tt_sbit_decoder_load_byte_aligned, tt_sbit_decoder_load_compound, + tt_sbit_decoder_load_image), src/sfnt/ttload.c + (tt_face_load_metrics): Remove compiler warnings + -- redundant variables, missing initializations, etc. + + * src/sfnt/ttsbit.h: Handle FT_OPTIMIZE_MEMORY. + + * src/autofit/rules.mk, src/autofit/module.mk, + src/autofit/afangles.h: New files. + + * src/autofit/afhints.c (af_axis_hints_new_segment, + af_axis_hints_new_edge): New functions. + (af_glyph_hints_done): Do proper deallocation. + (af_glyph_hints_reload): Only reallocate points array. This + drastically reduces heap usage. + + * src/autofit/afhints.h (AF_PointRec, AF_SegmentRec): Optimize + member types and positions. + (AF_AxisHintsRec): Add `max_segments' and `max_edges'. + (af_axis_hints_new_segment, af_axis_hints_new_edge): New prototypes. + + * src/autofit/aflatin.c (af_latin_metricsc_scale): Don't call + AF_SCALER_EQUAL_SCALES. + (af_latin_hints_compute_segments): Change return type to FT_Error. + Update all callers. + Improve segment allocation. + (af_latin_hints_compute_edges): Change return type to FT_Error. + Update all callers. + Improve edge allocation and link handling. + (af_latin_hints_detect_features): Change return type to FT_Error. + Update all callers. + + * src/autofit/aflatin.h: Updated. + + * src/autofit/afloader.c (af_loader_load_g) + : Assure axis->num_edges > 1. This fixes + a bug with certain fonts. + + * include/freetype/config/ftmodule.h: The auto-fitter is now the + only supported auto-hinting module. + + * include/freetype/config/ftstdlib.h (FT_INT_MAX): New macro. + +2005-02-28 Werner Lemberg + + * src/truetype/ttpload.c (tt_face_load_loca): Fix typo. + + * src/sfnt/ttkern.c: Include `ttkern.h'. + (FT_COMPONENT): Updated. + + * include/freetype/internal/fttrace.h: Add entry for `ttkern'. + + * src/sfnt/ttsbit0.c: s/FT_Err_/SFNT_Err_/. + Decorate constants with `U' and `L' where necessary. + + * src/sfnt/ttcmap.c (tt_cmap4_next): Remove unused variable. + +2005-02-28 David Turner + + * src/base/ftdbgmem.c (FT_DumpMemory): Added sorting of memory + sources according to decreasing maximum cumulative allocations. + (ft_mem_source_compare): New auxiliary function. + + * src/sfnt/ttsbit0.c: New file, implementing a heap-optimized + embedded bitmap loader. + + * src/sfnt/ttsbit.c: Include `ft2build.h', FT_INTERNAL_DEBUG_H, + FT_INTERNAL_STREAM_H, FT_TRUETYPE_TAGS_H. + Load `ttsbit0.c' if FT_OPTIMIZE_MEMORY is set, otherwise use + file contents. + (tt_face_load_sbit_strikes): Set up root fields to indicate the + strikes. This fixes Savannah bug #12107. + Use `static' keyword for `sbit_line_metrics_field', + `strike_start_fields', `strike_end_fields'. + + * include/freetype/internal/tttypes.h (TT_FaceRec): Define + `sbit_table', `sbit_table_size', `sbit_num_strikes' if + FT_OPTIMIZE_MEMORY is set. + Don't define `num_sbit_strikes' and `sbit_strikes' if + FT_OPTIMIZE_MEMORY is set. + + * src/cff/cffobjs.c (sbit_size_reset): Handle FT_OPTIMIZE_MEMORY. + + * src/sfnt/sfobjs.c (sfnt_load_face): Fixed bug that prevented + loading SFNT fonts without a `kern' table. + Properly pass root->face_flags. + Remove code for TT_CONFIG_OPTION_EMBEDDED_BITMAPS. + + * src/sfnt/sfdriver.c (sfnt_interface) + [TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: Don't use `tt_find_sbit_image' + and `tt_load_sbit_metrics'. + + * src/sfnt/ttcmap.c: Optimize linear charmap scanning for Format 4. + (OPT_CMAP4): New macro. + (TT_CMap4Rec) [OPT_CMAP4]: New structure. + (tt_cmap4_init, tt_cmap4_set_range, tt_cmap4_next, tt_cmap4_reset) + [OPT_CMAP4]: New functions. + (tt_cmap4_char_next) [OPT_CMAP4]: Use `tt_cmap4_next' and + `tt_cmap4_reset'. + (tt_cmap4_class_rec) [OPT_CMAP4]: Use `TT_CMap4Rec' and + `tt_cmap4_init'. + + * src/truetype/ttobjs.c (Reset_SBit_Size): Handle + FT_OPTIMIZE_MEMORY. + + * src/autofit/afhints.h (AF_PointRec, AF_SegmentRec, AF_EdgeRec): + Optimize member types. + + * src/autofit/afloader.c (af_loader_done): Call + `af_glyph_hints_done'. + +2005-02-27 David Turner + + * src/sfnt/ttkern.c (tt_face_load_kern): Fix a small bug which + caused invalid (random) return values for the horizontal kerning. + +2005-02-25 David Turner + + Implement several memory optimizations to drastically reduce the + heap usage of FreeType, especially in the case of memory-mapped + files. The idea is to avoid loading and decoding tables in the + heap, and instead access the raw data whenever possible (i.e., when + it doesn't compromise performance). + + This has several benefits: For example, opening vera.ttf now uses + just a small amount of memory (even when the FT_Library footprint is + accounted for), until you start loading glyphs. Even then, you save + at least 20KB compared to the non-optimized case. Performance of + various operations, including open and close, has also been + dramatically improved. + + More optimizations to come, especially for the auto-hinter. + + * include/freetype/internal/sfnt.h (TT_Face_GetKerningFunc): New + function type. + (SFNT_Interface): Add it. + + * include/freetype/internal/tttypes.h (TT_HdmxEntryRec, TT_HdmxRec, + TT_Kern0_PairRec): Don't define if FT_OPTIMIZE_MEMORY is set. + (TT_FaceRec): Define `horz_metrics', `horz_metrics_size', + `vert_metrics', `vert_metrics_size', `hdmx_table', + `hdmx_table_size', `hdmx_record_count', `hdmx_record_size', + `hdmx_record_sizes', `kern_table', `kern_table_size, + `num_kern_tables', `kern_avail_bits', `kern_order_bits' if + FT_OPTIMIZE_MEMORY is set. + Don't define `hdmx', `num_kern_pairs', `kern_table_index', + `kern_pairs' if FT_OPTIMIZE_MEMORY is set. + + * src/base/ftdbgmem.c (ft_mem_table_set): Don't shadow variable. + Fix compiler warning. + + * src/cff/cffdrivr.c (Get_Kerning): Renamed to... + (cff_get_kerning): This. Simplify. + (cff_driver_class): Updated. + + * src/sfnt/Jamfile (_sources): Add `ttkern'. + * src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttkern.c'. + + * src/sfnt/sfdriver.c (sfnt_interface): Add `tt_face_get_kerning'. + + * src/sfnt/sfnt.c: Include `ttkern.c'. + + * src/sfnt/sfobjs.c: Include `ttkern.h'. + (sfnt_load_face): Consider the `kern' and `gasp' table as optional. + (sfnt_done_face): Call `tt_face_done_kern'. + Handle horizontal metrics for FT_OPTIMIZE_MEMORY. + + * src/sfnt/ttkern.c, src/sfnt/ttkern.h: New files. Code has been + taken from `ttload.c' and `ttload.h'. + Provide special versions of `tt_face_load_kern', + `tt_face_get_kerning', and `tt_face_done_kern' for + FT_OPTIMIZE_MEMORY. + + * src/sfnt/ttload.c (tt_face_load_metrics, tt_face_load_hdmx, + tt_face_free_hdmx): Provide version for FT_OPTIMIZE_MEMORY. + (tt_face_load_kern, tt_kern_pair_compare, TT_KERN_INDEX): Moved to + `ttkern.c'. + + * src/sfnt/ttload.h: Updated. + + * src/sfnt/ttsbit.c (sbit_metrics_field): Add `static' keyword. + + * src/truetype/ttdriver.c (Get_Kerning): Renamed to... + (tt_get_kerning): This. Simplify. + (tt_driver_class): Updated. + + * src/truetype/ttgload.c (TT_Get_Metrics): Renamed to... + (tt_face_get_metrics): This. Provide version for FT_OPTIMIZE_MEMORY. + Update all callers. + (Get_Advance_Widths): Replaced with... + (Get_Advance_WidthPtr): This. Provide version for + FT_OPTIMIZE_MEMORY. + Update all callers. + + * src/truetype/ttgload.h: Updated. + +2005-02-22 David Turner + + * src/base/ftdbgmem.c: Partly rewritten. Added the ability to list + all allocation sites in the memory debugger. Also a new function + FT_DumpMemory() was added. It is only available in builds with + FT_DEBUG_MEMORY defined, and you must declare it in your own code to + use it, i.e., with something like: + + extern void FT_DumpMemory( FT_Memory ); + + ... + + FT_DumpMemory( memory ); + + * include/freetype/config/ftoption.h + (TT_CONFIG_OPTION_BYTECODE_INTERPRETER): Comment out definition -- + again. + (FT_OPTIMIZE_MEMORY): New configuration macro to control various + optimizations for reducing the heap footprint of memory-mapped + TrueType files. + + * include/freetype/internal/ftmemory.h (FT_ARRAY_ZERO): New + convenience macro. + + * include/freetype/internal/tttypes.h (TT_FaceRec) + [FT_OPTIMIZE_MEMORY]: Use optimized types for `num_locations' and + `glyph_locations'. + + * src/truetype/ttgload.c (load_truetype_glyph): Call + `tt_face_get_location'. + + * src/truetype/ttobjs.c (tt_face_init) + [FT_CONFIG_OPTION_INCREMENTAL]: Improve error handling. + (tt_face_done): Call `tt_face_done_loca'. + + * src/truetype/ttpload.c (tt_face_get_location, tt_face_done_loca): + New functions. If FT_OPTIMIZE_MEMORY is set, the locations table is + read directly from memory-mapped streams, instead of being decoded + into the heap. + (tt_face_load_loca) [FT_OPTIMIZE_MEMORY]: New implementation. + (tt_face_load_cvt, tt_face_load_fpgm): Only load table if the + bytecode interpreter is compiled in. + + * src/truetype/ttpload.h: Updated. + + * src/autohint/ahglyph.c (ah_outline_load): Improve allocation + logic. + +2005-02-20 Werner Lemberg + + * builds/unix/ltmain.sh: Regenerated with `libtoolize --force + --copy' from libtool 1.5.14. + * builds/unix/aclocal.m4: Regenerated with `aclocal -I .' from + automake 1.9.4. + + * builds/unix/config.guess, builds/unix/config.sub: Updated from + `config' CVS module at subversions.gnu.org. + + * builds/unix/install-sh, builds/unix/mkinstalldirs: Updated from + `texinfo' CVS module at subversions.gnu.org. + +2005-02-14 Werner Lemberg + + * src/cff/cffcmap.c (cff_cmap_unicode_init): Don't try to build + a cmap for a CID-keyed font which doesn't have SIDs. + +2005-02-13 Werner Lemberg + + * src/type1/t1load.c (read_binary_data): Return more meaningful + value. + (parse_encoding, parse_subrs, parse_charstrings, parse_dict): Check + parser error value after call to T1_Skip_PS_Token (where necessary). + + * src/type1/t1parse.c (T1_Get_Private_Dict): Check parser error + value after call to T1_Skip_PS_Token. + + * src/cid/cidparse.c (cid_parser_new): Check parser error value + after call to cid_parser_skip_PS_token. + + * src/type42/t42parse.c (t42_parse_encoding, t42_parse_sfnts, + t42_parse_charstrings, t42_parse_dict): Check parser error value + after call to T1_Skip_PS_Token (where necessary). + + * src/psaux/psobjc.c (skip_string, ps_parser_skip_PS_token, + ps_tobytes): Add error messages. + +2005-02-12 Werner Lemberg + + * configure: Output more variables to the created Makefile so that + it can be used for ft2demos also (if the FT2DEMOS variable is + defined). + +2005-02-10 David Turner + + * src/pfr/pfrgload.c (pfr_glyph_load): Fix an unbounded growing + dynamic array when loading a glyph from a PFR font (Savannah bug + #11921). + + * src/base/ftbitmap.c (FT_Bitmap_Convert): Small improvements to the + conversion function (mainly stupid optimization). + + * src/base/Jamfile: Adding ftbitmap.c to the list of compiled files. + +2005-02-10 Werner Lemberg + + * builds/unix/freetype-config.in: Add new flag `--ftversion' to + return the FreeType version. Suggested by George Williams + . + + * docs/CHANGES: Updated. + +2005-02-09 Werner Lemberg + + * src/otvalid/otvmod.c (otv_validate): Deallocate arrays in case + of error. Reported by YAMANO-UCHI Hidetoshi . + +2005-02-08 Werner Lemberg + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings) + : Accept `T1_Parse_Have_Moveto' state also which can + happen in empty glyphs. Reported by Ian Brown + (Savannah bug #11856). + +2005-02-04 Werner Lemberg + + * src/otlayout/*: Removed. Obsolete. + +2004-12-28 Werner Lemberg + + * builds/unix/ltmain.sh: Regenerated with `libtoolize --force + --copy' from libtool 1.5.10. + * builds/unix/aclocal.m4: Regenerated with `aclocal -I .' from + automake 1.9.4. + * builds/unix/configure: Regenerated with autoconf 2.59b. + + * builds/unix/config.guess, builds/unix/config.sub: Updated from + `config' CVS module at subversions.gnu.org. + + * builds/unix/install-sh: Updated from + `texinfo' CVS module at subversions.gnu.org. + + * builds/unix/ftsystem.c (FT_Stream_Open): Add proper cast for + ft_alloc. + Fix compiler warning. + +2004-12-27 Dirck Blaskey + + * src/cff/cffobjs.c (cff_face_init): Improve computation of + FT_STYLE_BOLD_FLAG. + +2004-12-27 Werner Lemberg + + * src/cff/cffobjs.c (cff_face_init): A CFF within an SFNT can have + only a single font. This is undocumented but has been verified on + the opentype list. + +2004-12-26 Werner Lemberg + + * Jamfile (FT2_COMPONENTS): Add `otvalid'. + +2004-12-25 Werner Lemberg + + * src/base/ftbitmap.c (FT_Bitmap_Convert): Fix compiler warning. + +2004-12-15 Werner Lemberg + + * vms_make.com: Add ftbitmap.obj. + +2004-12-14 Werner Lemberg + + * src/base/ftbitmap.c, include/freetype/ftbitmap.h: New files for + handling various bitmap formats. + + * include/freetype/config/ftheader.h (FT_BITMAP_H): New macro. + + * src/base/rules.mk (BASE_EXT_SRC): Add ftbitmap.c. + + * src/bdf/bdfdrivr.c (BDF_Glyph_Load): Don't convert bitmaps to 8bpp + but return them as-is. + + * docs/CHANGES: Mention new bitmap API. + * include/freetype/ftchapter.s: Updated. + +2004-12-11 Robert Clark + + * src/base/ftobjs.c (FT_Get_Kerning): Make kerning amount + dependent on ppem by scaling down for ppem < 25, then do normal + rounding. This gives slightly better results than rounding towards + zero. + +2004-12-09 Werner Lemberg + + * src/base/ftobjs.c (FT_Get_Kerning): Always round towards zero + for FT_KERNING_DEFAULT. This greatly enhances the kerning for + small ppem values. + +2004-12-08 Werner Lemberg + + * src/base/ftobjs.c (ft_glyphslot_clear): Reset `lsb_delta' and + `rsb_delta'. + +2004-12-05 Werner Lemberg + + * builds/unix/install.mk (install): Use $(OBJ_BUILD) for ftconfig.h. + +2004-12-03 Antoine Leca + + * include/freetype/ttnameid.h: Updated to latest + specifications from Microsoft. + +2004-11-26 Jouk Jansen + + * vms_make.com: Include ftbbox.c. + Fix `ccopt'. + Handle `otvalid' module. + Update `vmslib.dat' default values. + Fixes to `libs.opt'. + +2004-11-23 Anders Kaseorg + + * src/base/ftoutln.c (FT_OrientationExtremumRec, + ft_orientation_extremum_compute): Removed. + (FT_Outline_Get_Orientation): Rewritten, simplified. + + * src/autohint/ahglyph.c: Include FT_OUTLINE_H. + (ah_test_extremum, ah_get_orientation): Removed. + (ah_outline_load): Use FT_Outline_Get_Orientation. + + * src/base/ftsynth.c (ft_test_extrama, ft_get_orientation): Removed. + (FT_GlyphSlot_Embolden): Use FT_Outline_Get_Orientation. + +2004-11-23 Fernando Papa + + * src/truetype/ttinterp.h: Fix typo. + +2004-11-22 Antoine Leca + + * builds/win32/detect.mk: Corrected logic that detects Windows NT to + use the previous change even if win32 is forced. Corrected + detection of win32 on Win9X. + + * builds/dos/detect.mk: Added same correction as for win32 about + COPY on Windows NT. Detection of plain DOS 7.x. + +2004-11-22 Werner Lemberg + + * builds/detect.mk: Undo change from 2004-11-20. + * builds/win32/detect.mk: If the `OS' environment variable contains + `Windows_NT', use `cmd.exe /c copy' for copying files. + +2004-11-20 Werner Lemberg + + * builds/detect.mk (dos_setup): Use `cmd.exe' for copying + $(CONFIG_MK) to force lowercase file name under Windows. + +2004-11-19 Werner Lemberg + + Fix a serious bug in the TT hinter. + + * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Don't shift + points vertically before hinting. + + * docs/CHANGES: Updated. + + * src/cache/ftcglyph.c (FTC_GNode_UnselectFamily, + FTC_GCache_Lookup): A new try to fix comparison with zero. + +2004-11-16 Werner Lemberg + + * builds/unix/configure.ac: Add `-fno-strict-aliasing' if gcc is + used. + * builds/unix/configure: Regenerated. + * builds/unix/config.guess, builds/unix/config.sub: Updated from + `config' CVS module at subversions.gnu.org. + +2004-11-16 Dr. Martin P.J. Zinser + + * src/cache/ftcglyph.c (FTC_GNode_UnselectFamily, + FTC_GCache_Lookup): Fix comparison with zero. + + * docs/INSTALL.VMS: Updated. + + * vms_make.com: Updated. All `descrip.mms' files are now created + automatically. + + * src/*/descrip.mms: Removed. + +2004-11-16 Owen Taylor + + * builds/unix/freetype-config.in: Suppress -L$libdir for + /usr/lib64 as well as /usr/lib. (Reported by Dan Winship - + https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=139199) + +2004-11-11 Werner Lemberg + + * src/cff/cffdrivr.c (cff_service_ps_info): Updated. + * src/cid/cidriver.c (cid_service_ps_info): Updated. + * src/type42/t42drivr.c (t42_ps_get_font_private): New function. + (t42_service_ps_info): Updated. + + * src/type42/t42parse.c (t42_parse_dict): Remove compiler warning. + +2004-11-11 David Bevan + + Add new function FT_Get_PS_Font_Private(). + + * include/freetype/internal/services/svpsinfo.h + (PS_GetFontPrivateFunc): New service function. + + * include/freetype/t1tables.h, src/base/fttype1.c + (FT_Get_PS_Font_Private): New function. + + * src/type1/t1driver.c (t1_ps_get_font_private): New function. + (t1_service_ps_info): Updated. + +2004-10-13 Werner Lemberg + + * include/freetype/config/ftstdlib.h: Include `stddef.h'. + (ft_ptrdiff_t): Define. + + * include/freetype/fttypes.h (FT_PtrDist): Use `ft_ptrdiff_t'. + + * src/cid/cidload.c (cid_parse_dict), src/type1/t1load.c + (parse_dict): Fix compiler warning. + +2004-10-11 Joshua Neal + + * src/sfnt/ttcmap.c (tt_face_build_cmaps): Check for pointer + overflow. + + * src/sfnt/ttload.c (tt_face_load_hdmx): Protect against bad input. + Don't use FT_QNEW_ARRAY but FT_NEW_ARRAY to make deallocation work + in case of failure. + + * src/sfnt/ttsbit.c (Load_SBit_Range): Check range intervals. + (tt_face_load_sbit_strikes): Allocate `strike_sbit_ranges' after + frame test. + + * src/truetype/ttgload.c (TTLoad_Simple_Glyph): Add assertion for + `flag'. + +2004-10-09 Werner Lemberg + + * docs/CHANGES: Updated. + +2004-10-09 Boris Letocha + + Fix handling of NPUSHW if skipped in data stream. + + * src/truetype/ttinterp.c (opcode_length): Set value for NPUSHW + to -2. + (SkipCode, TT_RunIns): Use opcode_length value for computation of + bytes to be skipped. + +2004-09-10 Jouk Jansen + + * vms_make.com: Updated. + +2004-09-09 Werner Lemberg + + Adding OpenType validation module. The code is based on the + (unfinished) `otlayout' module but has been heavily modified to make + it much more compact. + + * src/otvalid/*: New module. + + * include/freetype/ftotval.h, src/base/ftotval.c, + include/freetype/internal/services/svotval.h: New files. + + * include/freetype/config/ftmodule.h: Add otv_module_class. + * include/freetype/config/ftheader.h (FT_OPENTYPE_VALIDATE_H): New + macro. + * include/freetype/internal/ftserv.h + (FT_SERVICE_OPENTYPE_VALIDATE_H): New macro. + * include/freetype/internal/fttrace.h (otvmodule, otvcommon, + otvbase, otvgdef, otvgpos, otvgsub, otvjstf): New trace components. + + * include/freetype/ftchapters.h: Updated. + + * src/base/Jamfile (Library), src/base/descrip.mms (OBJS), + src/base/rules.mk (BASE_EXT_SRC): Updated. + + * docs/CHANGES: Updated. + +2004-09-08 Werner Lemberg + + * src/tools/docmaker/sources.py (re_source_block_format2) : + Use lookahead assertion to not match `*/'. This removes spurious + insertions of `/' in the HTML output. + +2004-09-07 Werner Lemberg + + * src/truetype/ttgxvar.c (TT_Vary_Get_Glyph_Deltas): Fix call to + FT_NEW_ARRAY. + +2004-09-04 Werner Lemberg + + * include/freetype/internal/ftobjs.h: Don't include + FT_CONFIG_STANDARD_LIBRARY_H. + (FT_Validator, FT_ValidationLevel, FT_ValidatorRec, FT_VALIDATOR, + ft_validator_init, ft_validator_run, ft_validator_error, FT_INVALID, + FT_INVALID_TOO_SHORT, FT_INVALID_OFFSET, FT_INVALID_FORMAT, + FT_INVALID_GLYPH_ID, FT_INVALID_DATA): Move to... + + * include/freetype/internal/ftvalid.h: New file. + Make FT_INVALID return module-specific error codes. + + * include/freetype/internal/internal.h (FT_INTERNAL_VALIDATE_H): New + macro. + + * include/freetype/fterrors.h: Undefine FT_ERR_PREFIX only if + FT_KEEP_ERR_PREFIX isn't defined. + + * src/base/ftobjs.c: Include FT_INTERNAL_VALIDATE_H. + + * src/sfnt/ttcmap.h: Don't include FT_INTERNAL_OBJECTS_H but + FT_INTERNAL_VALIDATE_H. + + * src/sfnt/ttcmap.c: Don't include FT_INTERNAL_OBJECTS_H but + FT_INTERNAL_VALIDATE_H. + Include sferrors.h before FT_INTERNAL_VALIDATE_H. + s/FT_Err_Ok/SFNT_Err_Ok/. + + * src/sfnt/sferrors.h: Define FT_KEEP_ERR_PREFIX. + + * src/type1/t1afm.c: Include t1errors.h. + +2004-09-03 Werner Lemberg + + * src/base/ftdebug.c (ft_debug_init): Highest debug level is 7, + not 6. + * docs/DEBUG: Updated. + +2004-08-30 Werner Lemberg + + * include/freetype/tttags.h (TTAG_BASE, TTAG_GDEF, TTAG_GPOS, + TTAG_JSTF): New tags. + + * include/freetype/fttypes.h (FT_Bytes, FT_Tag): New typedefs. + (FT_Int): Add `signed'. + +2004-08-29 Werner Lemberg + + * src/otlayout/otlgpos.c (otl_gpos_subtable_validate): Add argument + to pass number of lookups. + Update all callers. + Don't call otl_lookup_list_validate but otl_lookup_validate. + (otl_gpos_validate): Call otl_lookup_list_validate instead of + otl_gpos_subtable_validate. + + * src/otlayout/otlgpos.h: Updated. + + * src/otlayout/otljstf.c (otl_jstf_max_validate): Add argument to + pass number of lookups. + Update all callers. + + + * src/cff/cffparse.c (cff_parse_real): s/exp/exponent/ to avoid + compiler warning. + + + * src/sfnt/ttcmap0.c, src/sfnt/ttcmap0.h: Renamed to... + * src/sfnt/ttcmap.c, src/sfnt/ttcmap.h: This. + * src/sfnt/Jamfile, src/sfnt/rules.mk, src/sfnt/sfdriver.c, + src/sfnt/sfnt.c, src/sfnt/sfobjs.c: Updated. + + + * builds/compiler/gcc-dev.mk (CFLAGS): Don't add `-Wnested-externs' + if compiler is g++ (v3.3.3 emits a warning otherwise). + +2004-08-28 Werner Lemberg + + * src/otlayout/otlgpos.c (otl_value_length): Return number of bytes, + not number of 16bit entities. + (otl_gpos_lookup2_validate): Check class definition tables for + format 2. + Fix loop for format 2. + (otl_liga_mark2_validate): Fix offset for otl_anchor_validate. + +2004-08-27 Werner Lemberg + + * src/base/ftmac.c: Don't include truetype/ttobjs.h. + Don't include type1/t1objs.h. + (FT_New_Face_From_FSSpec) [!__MWERKS__]: Remove compiler warnings. + +2004-08-27 Mathieu Malaterre + + * src/base/ftmac.c: Handle OS_INLINE for xlc compiler also. + +2004-08-27 Werner Lemberg + + * src/otlayout/otlayout.h: Add copyright. + (OTL_INVALID_OFFSET): Removed. + + * src/otlayout/otlgdef.h: Include otlayout.h. + Comment out inclusion of otltable.h. + + * src/otlayout/otlgpos.c (otl_gpos_lookup4_validate): Fix call + to otl_base_array_validate. + (otl_liga_mark2_validate): Fix `for' loop. + + * src/otlayout/otlgsub.c (otl_ligature_validate): Check `glyph_id', + not components array. + + * src/otlcommn.c (otl_lookup_get_count, otl_feature_get_count): + Comment out. + (otl_lookup_list_get_count, otl_feature_list_get_count): Activate. + (otl_feature_list_validate, otl_gsubgpos_get_lookup_count): + s/otl_lookup_get_count/otl_lookup_list_get_count/. + (otl_script_list_validate): + s/otl_feature_get_count/otl_feature_list_get_count/. + (otl_script_validate): Call otl_lang_validate for default language. + + * src/otlayout/otlcommn.h: Updated. + +2004-08-16 Werner Lemberg + + * src/otlayout/otlgpos.c (otl_gpos_lookup1_validate, + otl_gpos_lookup2_validate, otl_gpos_lookup3_validate, + otl_gpos_lookup4_validate, otl_gpos_lookup5_validate, + otl_gpos_lookup6_validate, otl_gpos_lookup9_validate, + otl_gpos_validate): Update + function arguments. + (otl_gpos_lookup7_validate, otl_gpos_lookup8_validate): Update + function arguments. + Handle NULL offsets correctly. + Check sequence and lookup indices for format 3. + (otl_pos_rule_validate, otl_chain_pos_rule_validate): Add argument + to pass lookup count. + Check sequence and glyph indices. + (otl_gpos_subtable_validate): Update function arguments. + Update callers. + + * src/otlayout/otlgpos.h: Updated. + + * src/otlayout/otlgsub.c (otl_gsub_lookup1_validate, + otl_gsub_lookup3_validate, otl_gsub_lookup8_validate): Update + function arguments. + Add glyph index checks. + (otl_sequence_validate, otl_alternate_set_validate, + otl_ligature_validate): Add argument to pass glyph count. + Update callers. + Add glyph index check. + (otl_gsub_lookup2_validate, otl_gsub_lookup4_validate): Update + function arguments. + (otl_ligature_set_validate): Add argument to pass glyph count. + Update caller. + (otl_sub_class_rule_validate, + otl_sub_class_rule_set_validate): Removed. + (otl_sub_rule_validate, otl_chain_sub_rule_validate): Add argument + to pass lookup count. + Update callers. + Add lookup index check. + (otl_sub_rule_set_validate, otl_chain_sub_rule_set_validate): Add + argument to pass lookup count. + Update callers. + (otl_gsub_lookup5_validate): Update function arguments. + Handle NULL offsets correctly. + Don't call otl_sub_class_rule_set_validate but + otl_sub_rule_set_validate. + Check sequence and lookup indices for format 3. + (otl_gsub_lookup6_validate): Update function arguments. + Handle NULL offsets correctly. + Check sequence and lookup indices for format 3. + (otl_gsub_lookup7_validate, otl_gsub_validate): Update function + arguments. + + * src/otlayout/otlgsub.h: Updated. + + * src/otlayout/otlbase.c (otl_base_validate): Handle NULL offsets + correctly. + + * src/otlayout/otlcommn.c (otl_class_definition_validate): Fix + compiler warning. + (otl_coverage_get_first, otl_coverage_get_last): New functions. + (otl_lookup_validate): Add arguments to pass lookup and glyph + counts. + Update callers. + (otl_lookup_list_validate): Add argument to pass glyph count. + Update callers. + + * src/otlayout/otlcommn.h: Updated. + + * src/otlayout/otljstf.c (otl_jstf_extender_validate, + otl_jstf_max_validate, otl_jstf_script_validate, + otl_jstf_priority_validate, otl_jstf_lang_validate): Add parameter + to validate glyph indices. + Update callers. + (otl_jstf_validate): Add parameter which specifies number of glyphs + in font. + + * src/otlayout/otljstf.h: Updated. + +2004-08-15 Werner Lemberg + + * src/otlayout/otlgpos.c (otl_liga_mark2_validate): Add parameter + to handle possible NULL values properly. + Update all callers. + +2004-08-15 Werner Lemberg + + * src/otlayout/gpos.c: Rename counting variables to be more + meaningful. + Add copyright. + (otl_liga_attach_validate): Renamed to... + (otl_liga_mark2_validate): This. + Update all callers. + (otl_mark2_array_validate): Removed. + (otl_gpos_lookup6_validate): Call otl_liga_mark2_validate, not + otl_mark2_array_validate. + (otl_pos_class_set_validate, otl_pos_class_rule_validate): Removed. + (otl_gpos_lookup7_validate): Complete code for format 2. + (otl_chain_pos_class_rule_validate, + otl_chain_pos_class_set_validate): Removed. + (otl_gpos_lookup8_validate): Don't call + otl_chain_pos_class_set_validate but + otl_chain_pos_rule_set_validate. + Simplify some code. + + * src/otlayout/otlgpos.h: Add copyright. + +2004-08-14 Werner Lemberg + + * src/otlayout/otljstf.c (otl_jstf_gsub_mods_validate): Removed. + (otl_jstf_gpos_mods_validate): Renamed to... + (otl_jstf_gsubgpos_mods_validate): This. + Test whether lookup_count is zero. + (otl_jstf_priority_validate): Use otl_jstf_gsubgpos_mods_validate. + (otl_jstf_validate): Initialize gsub_lookup_count and + gpos_lookup_count if gsub or gpos is zero. + + * src/otlayout/otlgsub.c: Rename counting variables to be more + meaningful. + Add copyright. + (otl_gsub_lookup1_validate): Simplify code. + (otl_gsub_lookup2_validate, otl_gsub_lookup3_validate, + otl_gsub_lookup4_validate, otl_gsub_lookup7_validate): Remove unused + variables. + (otl_gsub_lookup5_validate): Remove unused variable. + Fix call to otl_sub_rule_set_validate and + otl_sub_class_rule_set_validate. + (otl_chain_sub_class_rule_validate, + otl_chain_sub_class_set_validate): Removed. + (otl_gsub_lookup6_validate): Remove unused variable. + Fix call to otl_chain_sub_rule_set_validate. + (otl_gsub_lookup7_validate): Handle lookup type 8 also. + (otl_gsub_lookup8_validate: New function. + (otl_gsub_lookup1_apply, otl_gsub_lookup2_apply, + otl_gsub_lookup3_apply): Commented out. + (otl_gsub_validate_funcs): Add otl_gsub_lookup7_validate and + otl_gsub_lookup8_validate. + (otl_gsub_validate): Updated. + + * src/otlayout/otlgsub.h: Add copyright. + + * src/otlayout/otlcommn.c, src/otlayout/otlcommn.h + (otl_coverage_get_index): Comment out. + +2004-08-13 Werner Lemberg + + * src/otlayout/otlcommn.c (otl_gsubgpos_get_lookup_count): New + function. + * src/otlayout/otlcommn.h: Updated. + + * src/otlayout/otlbase.c: Rename counting variables to be more + meaningful. + Add copyright message. + * src/otlayout/otlbase.h: Add copyright message. + + * src/otlayout/otlgdef.c: Rename counting variables to be more + meaningful. + Add copyright message. + Use OTL_CHECK everywhere. + (otl_caret_value_validate): Remove unused variable. + (otl_gdef_validate): All tables are optional. + * src/otlayout/otlgdef.h: Add copyright message. + + * src/otlayout/otljstf.c: Rename counting variables to be more + meaningful. + Add copyright message. + (otl_jstf_gsub_mods_validate, otl_jstf_gpos_mods_validate): Add + parameter to pass lookup count. + Update all callers. + Check lookup array. + (otl_jstf_max_validate): + s/otl_gpos_subtable_check/otl_gpos_subtable_validate/. + (otl_jstf_priority_validate, otl_jstf_lang_validate, + otl_jstf_script_validate): Add two parameters to pass lookup counts. + Update all callers. + (otl_jstf_validate): Add two parameters to pass GPOS and GSUB + table offsets; use otl_gsubgpos_get_lookup_count to convert extract + lookup counts. + Fix typo. + * src/otlayout/otljstf.h: Updated. + Add copyright message. + + * src/otlayout/otlgpos.c (otl_gpos_subtable_validate): New function. + (otl_gpos_validate): Use it. + * src/otlayout/otlgpos.h: Updated. + +2004-08-13 Werner Lemberg + + * src/otlayout/otcommn.c: Use OTL_CHECK everywhere. + (otl_coverage_validate): Initialize `p', + s/count/num_glyphs/. + s/start_cover/start_coverage/. + (otl_coverage_get_index): Return OTL_Long, not OTL_Int. + Remove unused variables. + (otl_class_definition_validate): s/count/num_glyphs/. + Remove unused variables. + (otl_class_definition_get_value, otl_device_table_get_start, + otl_device_table_get_end, otl_device_table_get_delta, + otl_lookup_get_table, otl_lookup_list_get_count, + otl_lookup_list_get_lookup, otl_lookup_list_get_table, + otl_feature_get_lookups, otl_feature_list_get_count, + otl_feature_list_get_feature, otl_lang_get_count, + otl_lang_get_req_feature, otl_lang_get_features): Commented out + temporarily until we really need it. + (otl_lookup_validate): Removed. + (otl_lookup_table_validate): Renamed to ... + (otl_lookup_validate): This. Update callers. + (otl_lookup_list_validate): Remove already commented out definition + and move the other definition up. + (otl_feature_validate): Add parameter to pass number of lookups. + Update callers. + Check lookup indices. + (otl_feature_list_validate): Add parameter to pass lookup table. + Update callers. + (otl_lang_validate): Add parameter to pass number of features. + Update callers. + Handle req_feature and check feature indices. + (otl_script_validate): Add parameter to pass number of features. + Update callers. + (otl_script_list_validate): Add parameter to pass feature table. + Update callers. + + * src/otlayout/otcommn.h: s/LOCALDEF/LOCAL/. + Comment out the same functions as in otcommn.c. + (otl_script_list_get_script): Removed. + + * src/otlayout/otlgsub.c (otl_gsub_lookup1_apply): Change `index' to + type OTL_Long. + (otl_gsub_lookup2_apply, otl_gsub_lookup3_apply): Change `index' to + type OTL_Long. + Fix test. + (otl_gsub_validate): Fix order of validation. + + * src/otlayout/otlgpos.c (otl_gpos_validate): Fix order of + validation. + +2004-08-12 Werner Lemberg + + Make otlayout module compile (without actually working). + + * src/otlayout/*: s/OTL_Valid/OTL_Validator/. + s/NULL/0/. + + * src/otlayout/otlayout.h: Fix various typos. + (OTL_Bool): New typedef. + (OTL_Int, OTL_Long, OTL_Int16, OTL_Int32): Use `signed' keyword. + (OTL_Err_InvalidArgument): Removed. + (OTL_Err_InvalidData, OTL_Err_InvalidSize): New enum values. + (OTL_MAKE_TAG): Add missing parenthesis. + (OTL_INVALID_DATA): Use OTL_Err_InvalidData. + (OTL_INVALID_TOO_SHORT): Use OTL_Err_InvalidSize. + (OTL_INVALID_FORMAT, OTL_INVALID_OFFSET): New macros. + + * src/otlayout/otlgpos.c: s/FT_/OTL_/. + s/OTL_Short/OTL_Int16/. + (otl_gpos_pairset_validate): Add return type. + (otl_base_array_validate): Fix call to otl_anchor_validate. + (otl_liga_array_validate): Fix call to otl_liga_attach_validate. + (otl_gpos_lookup5_validate): Fix typos. + (otl_gpos_lookup6_validate): Fix call to otl_mark2_array_validate. + (otl_gpos_lookup7_validate): Comment out unfinished code. + Fix typos. + + * src/otlayout/otlgsub.c: Add forward declaration for + otl_gsub_validate_funcs. + (otl_gsub_lookup1_apply, otl_gsub_lookup2_apply, + otl_gsub_lookup3_apply): Fix call to otl_parser_check_property. + s/otl_coverage_lookup/otl_coverage_get_index/. + (otl_ligature_validate): Add missing variable declaration. + (otl_sub_rule_validate): Fix typo. + (otl_sub_class_rule_validate): Add missing variable declaration. + Fix typo. + (otl_gsub_lookup5_validate): Fix typo. + (otl_gsub_lookup6_validate): Fix call to + otl_chain_sub_class_set_validate. + (otl_gsub_validate_funcs): Don't use `const'. + + * src/otlayout/otlcommn.c (otl_class_definition_get_value, + otl_device_table_validate, otl_device_table_get_delta, + otl_lookup_validate, otl_script_validate): Add missing + variable declarations. + (otl_lookup_list_validate): Comment out first definition. + (otl_lookup_list_foreach, otl_feature_list_foreach): Comment out. + (otl_feature_list_validate): + s/otl_feature_table_validate/otl_feature_validate/. + (otl_script_list_validate): + s/otl_script_table_validate/otl_script_validate/. + + * src/otlayout/otlcommn.h: Comment out first declaration. + (otl_lookup_list_foreach, otl_feature_list_foreach): Comment out. + + * src/otlayout/otlbase.c (otl_base_coord_validate): Fix call to + otl_device_table_validate. + (otl_base_script_validate): Add missing variable declarations. + (otl_base_script_list_validate): Fix call to + otl_base_script_validate. + (otl_axis_table_validate): Fix calls to otl_base_tag_list_validate + and otl_base_script_list_validate. + (otl_base_validate): Fix calls to otl_axis_table_validate. + + * src/otlayout/otlgdef.c (otl_attach_list_validate): Fix call to + otl_attach_point_validate. + (otl_caret_value_validate): Add missing variable declaration. + Fix call to otl_device_table_validate. + (otl_ligature_glyph_validate): Fix call to otl_caret_value_validate. + (otl_ligature_caret_list_validate): Fix call to + otl_ligature_glyph_validate. + (otl_gdef_validate): Fix calls to otl_class_definition_validate, + otl_attach_list_validate, otl_ligature_caret_list_validate, and + otl_class_definition_validate. + + * src/otlayout/otltable.h (otl_table_validate, otl_table_init, + otl_table_set_script): Comment out. + + * src/otlayout/otlparse.h (OTL_ParserRec): + s/OTL_Alternate/OTL_GSUB_Alternate/. + (OTL_ParseError): Add OTL_Err_Parser_Memory and + OTL_Err_Parser_Internal. + (otl_parser_error): Fix typo. + (otl_parser_check_property): Remove third argument. + + * src/otlayout/otlparse.c (otl_string_ensure): + s/OTL_Parse_Err_Memory/OTL_Err_Parser_Memory/. + (OTL_STRING_ENSURE, otl_parser_error, otl_parser_get_index, + otl_parser_replace_1, otl_parser_replace_n): Fix typos. + (OTL_PARSER_UNCOVERED): Removed. + (otl_parser_check_property): Remove third argument. + + * src/otlayout/otljstf.c (otl_jstf_priority_validate): Add missing + variable declaration. + + * src/otlayout/otlutils.h (OTL_MEM_REALLOC): Fix typo. + +2004-08-11 Danny + + * src/base/ftstream.c (FT_Stream_Close): Don't reset stream->close + to NULL. This allows custom close functions to delete the FT_STREAM + object. + +2004-08-11 Werner Lemberg + + Add API to get information about SFNT tables. + + * include/freetype/internal/services/svsfnt.h + (FT_SFNT_Table_Info_Func): New typedef. + (SFNT_Table): Add it. + + * src/base/ftobjs (FT_Sfnt_Table_Info): New function. + + * include/freetype/tttables.h: Updated. + + * src/sfnt/sfdriver.c (sfnt_table_info): New function. + (sfnt_service_sfnt_table): Add it. + + * docs/CHANGES: Updated. + + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 10. + + * builds/unix/configure.ac (version_info): Set to 9:8:3. + * builds/unix/configure: Updated. + + * builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj: s/219/2110/, s/2.1.9/2.1.10/. + + * builds/freetype.mk (refdoc), README, Jamfile (RefDoc): + s/2.1.9/2.1.10/. + + * docs/CHANGES, docs/VERSION.DLL: Updated. + +2004-08-11 Detlef Würkner + + * src/base/ftrfork.c (FT_Raccess_Guess) + [!FT_CONFIG_OPTION_GUESSING_EMBEDDED_FORK]: Remove compiler + warnings. + +2004-08-06 Adam Piotrowski + + * src/pfr/pfrload.c (pfr_sort_kerning_pairs): Single-byte + adjustments are unsigned, not signed. + +2004-08-05 David Turner + + `Activate' gray-scale specifing hinting within the TrueType + bytecode interpreter. This is an experimental feature which + should probably be made optional. + + * src/truetype/ttgload.c (TT_Process_Simple_Glyph, + load_truetype_glyph): Move the code to set the pedantic_hinting flag + to... + (TT_Load_Glyph): Here. + Set `grayscale' flag except for `FT_LOAD_TARGET_MONO'. + + * src/truetyep/ttinterp.c (Ins_GETINFO): Return MS rasterizer + version 1.7. + Return rotation and stretching info only if glyph is rotated or + stretched, respectively. + Handle grayscale info. + + * src/truetype/ttinterp.h (TT_ExecContextRec): Add `grayscale' + member. + +2004-08-02 George Williams + + * src/base/ftobjs.c (FT_Attach_File): Initialize `open.stream'. + +2004-08-01 Werner Lemberg + + * docs/CHANGES: Updated. + +2004-08-01 George Williams + + FreeType now can read kerning values from PFM files. + + * src/type1/t1afm.c (T1_Done_AFM): Renamed to... + (T1_Done_Metrics): This. + Update all callers. + (T1_Read_AFM): Make it static. + Don't enter and leave a frame. + (LITTLE_ENDIAN_USHORT, LITTLE_ENDIAN_UINT): New macros. + (T1_Read_PFM): New function. + (T1_Read_Metrics): New higher-level function to be used instead of + T1Read_AFM. + Update all callers. + +2004-07-31 Werner Lemberg + + * src/pcf/pcfread (pcf_load_font), src/bdf/bdfdrivr.c + (BDF_Face_Init), src/truetype/ttgxvar (TT_Get_MM_Var, + tt_face_vary_cvt): Fix compiler warnings. + +2004-07-26 Søren Sandmann + + * src/pcf/pcfread.c (pcf_interpret_style): Always allocate memory for + face->style_name. + * src/pcf/pcfdrivr.c (PCF_Face_Done): Free `style_name'. + +2004-07-26 Darren J Longhorn + + * include/freetype/config/ftconfig.h (FT_SIZEOF_LONG): Recognize + five-byte `long' (which is avoided then). + +2004-07-25 Detlef Würkner + + * src/pcf/pcfdrivr.c (PCF_Set_Pixel_Size): Compare heights, not + ppem values. + (PCF_Set_Point_Size): Don't call PCF_Set_Pixel_Size but provide own + code to compare ppem values. + * src/bdf/bdfdrivr.c (BDF_Set_Pixel_Size): Compare heights, not + ppem values. + (BDF_Set_Point_Size): Don't call BDF_Set_Pixel_Size but provide own + code to compare ppem values. + +2004-07-25 Kornfeld Eliyahu Peter + + * src/sfnt/sfobjs.c (sfnt_load_face): Handle + TT_NAME_ID_PREFERRED_FAMILY and TT_NAME_ID_PREFERRED_SUBFAMILY. + +2004-07-24 Derek B. Noonburg + + * src/cff/cffload.c (cff_font_load): Always create inverse mapping. + Even if the charstring count is the same as the CID count, it is + still possible that the font uses a different CID -> GID mapping. + +2004-07-23 Werner Lemberg + + * src/truetype/ttobjs.c (tt_face_init): Accept 0x00020000 format tag + found in some Arphic fonts made for Chinese version of Windows 3.1. + +2004-07-17 David Turner + + Fixed a dangling pointer bug in the cache code that happened in very + rare cases, i.e., when a new family object was destroyed by an + out-of-memory condition during a glyph node initialization. The + function FTC_Cache_Lookup would flush the cache and restart the + lookup with a bad pointer. + + * include/freetype/cache/ftcglyph.h (FTC_FAMILY_TREE): New macro. + (FTC_GCACHE_LOOKUP_CMP): Use it. + Handle reference count in `num_nodes' correctly. + + * src/cache/ftcglyph.c (FTC_GNode_UnselectFamily): Use + FTC_FAMILY_FREE. + (FTC_GCache_Lookup): Handle reference count in `num_nodes' correctly. + + * src/cache/ftcmanag.c (FTC_Manager_FlushN): Fixed a cache flushing + bug. + + * src/truetype/ttinterp.c (Normalize): Fixed a bug that caused + long and unnecessary delays while normalizing huge vectors. + +2004-07-15 Werner Lemberg + + * docs/CHANGES: Updated. + + * src/base/ftstroke.c (FT_Stroker_ParseOutline): Fix compiler + warning. + +2004-07-15 David Turner + + * src/base/ftstroke.c (FT_Stroker_ParseOutline): Single points + are not stroked, preventing a bug with pala.ttf and other + fonts. + + * include/freetype/ftstroke.h: Updating documentation comments. + +2004-07-13 Werner Lemberg + + * src/base/ftstroke.c (ft_stroke_border_reverse): Removed. Unused. + +2004-07-12 David Turner + + * src/base/ftstroke.c (ft_stroke_border_close): Add second parameter + to indicate reversion of points. + Update all callers. + (ft_stroke_border_reverse): Fix initialization of `point1' and + `tag1'. + + * src/cache/ftcsbits.c (ftc_snode_load): Fixing advance computation + for transformed glyphs. + +2004-07-11 David Turner + + Fix bugs that prevented the stroker to correctly generate stroked + paths from closed paths, i.e., nearly all glyphs in vectorial fonts. + + The code is still _very_ buggy though; treat with special care. + + * src/base/ftstroke.c (FT_STROKE_TAG_BEGIN_END): New macro. + (ft_stroke_border_reverse): New function. + (ft_stroker_inside): Remove local variable `sigma'; use different + threshold. + (ft_stroker_add_reverse_left): Switch begin/end tags if necessary. + (FT_Stroker_EndSubPath): Call ft_stroker_inside and + ft_stroke_border_reverse. + +2004-06-26 Peter Kovar + + * src/truetype/ttgload.c (load_truetype_glyph): Fix typo. + +2004-06-25 Werner Lemberg + + * src/type1/t1afm.c (afm_atoindex): Fix boundary test. Reported + by Dirck Blaskey. + +2004-06-24 David Turner + + + * Version 2.1.9 released. + ========================= + + + * src/truetype/ttgload.c, src/truetype/ttxgvar.c: Removing + compiler warnings. + +2004-06-23 Werner Lemberg + + * include/freetype/internal/ftmemory.h [FT_DEBUG_MEMORY]: Declare + FT_QAlloc_Debug and FT_QRealloc_Debug. + + * src/base/ftutil.c (FT_QAlloc): Fix error and debug messages. + (FT_QRealloc): Call FT_QAlloc if original pointer is NULL. + Fix error message. + +2004-06-23 David Turner + + * include/freetype/internal/ftmemory.h, src/base/ftutil.c + (FT_QAlloc, FT_QRealloc), src/base/ftdbgmem.c (FT_QAlloc_Debug, + FT_QRealloc_Debug): New functions that perform allocation without + zero-ing out the corresponding blocks. + + * include/freetype/internal/ftmemory.h (FT_MEM_QALLOC, + FT_MEM_QREALLOC, FT_MEM_QNEW, FT_MEM_QNEW_ARRAY, + FT_MEM_QRENEW_ARRAY, FT_QALLOC, FT_QREALLOC, FT_QNEW, FT_QNEW_ARRAY, + FT_QRENEW_ARRAY): New macros. + + * src/base/ftstream.c (FT_Stream_EnterFrame): Use FT_QALLOC. + * src/gzip/ftgzip.c (FT_Stream_OpenGzip): Use FT_QNEW_ARRAY. + * src/sfnt/sfobjs.c (tt_face_get_name): Use FT_QNEW_ARRAY. + + * src/sfnt/ttload.c (tt_face_load_directory, tt_face_load_metrics, + tt_face_load_gasp): Use FT_QNEW_ARRAY. + (tt_face_load_kern): Use FT_QNEW_ARRAY. + Small optimization in the kerning table verifier; this speeds up + TrueType face opening by about 7%. + (tt_face_load_hdmx): Use FT_QNEW_ARRAY and FT_QALLOC. + + * include/freetype/config/ftmodule.h: Changed the order of modules, + putting TrueType and Type 1 first. This dramatically improves the + performance of face open/close operations. For example, putting the + TrueType driver first in the list results in a 5x speedup when + opening `Vera.ttf'. + + The very problem is that both the PCF and BDF drivers do a lot more + than necessary to detect that they cannot handle a font file. + +2004-06-22 Werner Lemberg + + * src/pcf/pcfread.c (pcf_read_TOC, pcf_get_properties, + pcf_get_metrics, pcf_get_bitmaps, pcf_get_encodings): Improve + debugging messages. + + * src/pcf/pcfdrivr.c (FT_COMPOMENT): Move up. + (PCF_Face_Init): Simplify code. + + * src/bdf/bdfdrivr.h (BDF_FaceRec): New element `default_glyph'. + + * src/bdf/bdflib.c (_bdf_add_property, _bdf_parse_start), + src/bdf/bdf.h (bdf_font_t): s/default_glyph/default_char/. + + * src/bdf/bdfdrivr.c (BDF_Face_Init): Fix number of glyphs. + Set `default_glyph'. + (BDF_Glyph_Load): Use `default_glyph' for undefined glyph. + + * docs/CHANGES: Updated. + +2004-06-21 Werner Lemberg + + * docs/CHANGES: Updated. + +2004-06-21 David Turner + + * src/truetype/ttgload.c (TT_Process_Simple_Glyph, + load_truetype_glyph): Don't access (unrounded) + `TT_Size.root.metrics' but (rounded) `TT_Size.metrics'. This fixes + a scaling bug that caused incorrect rendering when the bytecode + interpreter was enabled. + +2004-06-14 Huw D M Davies + + * src/winfonts/winfnt.c (FNT_Face_Init): Set x_ppem and y_ppem + based on pixel_width and pixel_height. + (FNT_Size_Set_Pixels): Updated. + +2004-06-14 Werner Lemberg + + * src/lzw/zopen.c: Comment out inclusion of signal.h and unistd.h. + Reported by Hyvärinen Jyrki Juhani. + +2004-06-11 Werner Lemberg + + * docs/CHANGES: Updated. + +2004-06-10 David Turner + + * src/base/ftobject.c, src/base/fthash.c, src/base/ftexcept.c, + src/base/ftsysio.c, src/base/ftsysmem.c, src/base/ftlist.c: Removed. + Obsolete. + + * src/raster/ftraster.c (Alignment, PAlignment): New union to fix + problems with 64bit systems. + (AlignProfileSize): Use it. + +2004-06-08 David Turner + + * include/freetype/freetype.h (FT_GlyphMetrics): Move `lsb_delta' + and `rsb_delta' elements to... + (FT_GlyphSlotRec): Here to retain binary compatibility with older + FreeType versions. + Update all users. + + * src/sfnt/sfobjs.c (tt_face_get_name): Remove compiler warning. + + * src/winfonts/winfnt.c (FNT_Load_Glyph): Add missing initialization + of slot->metrics.width and slot->metrics.height when loading a + Windows FNT glyph. Thanks to Huw Davies. + + * include/freetype/cache/ftcmru.h (FTC_MruNode_CompareFunc): Change + return type to FT_Bool. + + * src/cache/ftbasic.c (ftc_basic_family_compare): Change return + type to FT_Bool. + + * src/cache/ftccache.c (FTC_Cache_Init, ftc_cache_init): Make + the former call the latter, not vice versa. + (FTC_Cache_Done, ftc_cache_done): Ditto. + + * src/cache/ftcglyph.c (FTC_GNode_Compare, ftc_gnode_compare): Make + the former call the latter, not vice versa. + (FTC_GCache_Init, ftc_gcache_init): Ditto. + (FTC_GCache_Done, ftc_gcache_done): Ditto. + + * src/cache/ftcimage.c (FTC_INode_Free, ftc_inode_free): Make the + former call the latter, not vice versa. + (FTC_INode_Weight, ftc_inode_weight): Ditto. + + * src/cache/ftcmanag.c (ftc_size_node_compare, + ftc_size_node_compare_faceid, ftc_face_node_compare): Change return + type to FT_Bool. + + * src/cache/ftcsbits.c (FTC_SNode_Free, ftc_snode_free): Make the + former call the latter, not vice versa. + (FTC_SNode_Weight, ftc_snode_weight): Ditto. + (FTC_SNode_Compare, ftc_snode_compare): Ditto. + + * src/cache/ftcsbits.c: Fix some bugs and inefficiencies in the cache + sub-system. + +2004-06-05 Werner Lemberg + + * src/autofit/afloader.c (af_loader_load_g): Set `lsb_delta' and + `rsb_delta' in slot->metrics and tune side bearings slightly. + +2004-06-04 Werner Lemberg + + * docs/CHANGES: Updated. + +2004-06-04 David Chester + + Improve inter-letter spacing for autohinted glyphs. + + * include/freetype/freetype.h (FT_Glyph_Metrics): Add elements + `lsb_delta' and `rsb_delta'. + + * src/autohint/ahhint.c (ah_hinter_load): Set `lsb_delta' and + `rsb_delta' in slot->metrics and tune side bearings slightly. + +2004-06-04 David Turner + + * src/autofit/*: Important fixes to the auto-fitter. The output + now seems to be 100% equivalent to the auto-hinter, while being + about 2% faster (which proves that script-specific algorithm + selection isn't a performance problem). + + To test it, change `autohint' to `autofit' in + and recompile. + + A few more testing is needed before making this the official + auto-hinting module. + +2004-06-02 Werner Lemberg + + * src/truetype/ttgload.c (compute_glyph_metrics): Fix compiler + warnings. + +2004-06-01 Werner Lemberg + + * src/sfnt/sfobjs.c (tt_face_get_name): Make sure that an English + name record for the Apple platform is preferred to a non-English + entry for the Microsoft platform. Problem reported by HANDA + Ken'ichi. + +2004-05-19 George Williams + + * src/type1/t1load.c (mm_axis_unmap, mm_weights_unmap): New + auxiliary functions. + (T1_Get_MM_Var): Provide axis tags. + Use mm_axis_unmap and mm_weights_unmap to provide default values + for design and normalized axis coordinates. + + * include/freetype/t1tables.h (PS_DesignMapRec): Change type of + `design_points' to FT_Long. + Update all users. + +2004-05-17 Werner Lemberg + + * src/base/ftbbox.c (BBox_Conic_Check): Fix boundary cases. + Reported by Mikey Anbary . + +2004-05-15 Werner Lemberg + + * src/sfnt/sfobjs.c (sfnt_done_face): Free face->postscript_name. + +2004-05-15 George Williams + + * src/sfnt/ttload.c (tt_face_load_max_profile): Always set + face->root.num_glyphs. + +2004-05-14 Masatake YAMATO + George Williams + + * src/sfnt/ttload.c (sfnt_dir_check): Handle `bhed' properly. + +2004-05-14 Werner Lemberg + + * src/cache/ftcbasic.c (ftc_basic_family_compare, + ftc_basic_family_init, ftc_basic_family_get_count, + ftc_basic_family_load_bitmap, ftc_basic_family_load_glyph, + ftc_basic_gnode_compare_faceid): Adjust parameters and return types + to prototypes given in header files from include/freetype/cache. + Use casts to proper types locally. + (ftc_basic_image_family_class, ftc_basic_image_cache_class, + ftc_basic_sbit_family_class, ftc_basic_sbit_cache_class): Remove + casts. + + * src/cache/ftccback.h: Adjust parameters and return types to + prototypes given in header files from include/freetype/cache. + + * src/cache/ftcimage.c (ftc_inode_free, ftc_inode_new, + ftc_inode_weight): Adjust parameters and return types to prototypes + given in header files from include/freetype/cache. Use casts to + proper types locally. + + * src/cache/ftcsbits.c (ftc_snode_free, ftc_snode_new, + ftc_snode_weight, ftc_snode_compare): Adjust parameters and return + types to prototypes given in header files from + include/freetype/cache. Use casts to proper types locally. + + * src/cache/ftccmap.c (ftc_cmap_node_free, ftc_cmap_node_new, + ftc_cmap_node_weight, ftc_cmap_node_compare, + ftc_cmap_node_remove_faceid): Adjust parameters and return types to + prototypes given in header files from include/freetype/cache. Use + casts to proper types locally. + (ftc_cmap_cache_class): Remove casts. + + * src/cache/ftcglyph.c (ftc_gnode_compare, ftc_gcache_init, + ftc_gcache_done): Adjust parameters and return types to prototypes + given in header files from include/freetype/cache. Use casts to + proper types locally. + + * src/cache/ftcmanag.c (ftc_size_node_done, ftc_size_node_compare, + ftc_size_node_init, ftc_size_node_reset, + ftc_size_node_compare_faceid, ftc_face_node_init, + ftc_face_node_done, ftc_face_node_compare: Adjust parameters and + return types to prototypes given in header files from + include/freetype/cache. Use casts to proper types locally. + + (ftc_size_list_class, ftc_face_list_class): Remove casts. + +2004-05-13 Werner Lemberg + + * src/autohint/ahmodule.c (ft_autohinter_init, ft_autohinter_done): + Use FT_Module as parameter and do a cast to FT_AutoHinter locally. + (autohint_module_class): Remove casts. + + * src/base/ftglyph.c (ft_bitmap_glyph_init, ft_bitmap_glyph_copy, + ft_bitmap_glyph_done, ft_bitmap_glyph_bbox, ft_outline_glyph_init, + ft_outline_glyph_done, ft_outline_glyph_copy, + ft_outline_glyph_transform, ft_outline_glyph_bbox, + ft_outline_glyph_prepare): Use FT_Glyph as parameter and do a cast + to FT_XXXGlyph locally. + Use FT_CALLBACK_DEF throughout. + (ft_bitmap_glyph_class, ft_outline_glyph_class): Remove casts. + + * src/bdf/bdfdrivr.c (bdf_cmap_init, bdf_cmap_done, + bdf_cmap_char_index, bdf_cmap_char_next): Use FT_CMap as parameter + and do a cast to BDF_CMap locally. + (bdf_cmap_class): Remove casts. + +2004-05-12 Werner Lemberg + + * src/cff/cffgload.h (CFF_Builder): Remove `error'. + * src/cff/cffgload.c (cff_decoder_parse_charstrings): Replace + `Memory_Error' with `Fail' und update all users. + +2004-05-11 Werner Lemberg + + * include/freetype/internal/psaux.h (T1_ParseState): New + enumeration. + (T1_BuilderRec): Replace `path_begun' with `parse_state'. + Remove `error'. + * src/psaux/t1decode.c (t1_decoder_parse_charstrings): Replace + `Memory_Error' with `Fail' and update all users. + Don't use `builder->error'. + Replace `path_begun' with `parse_state' and check parsing states. + + * src/psaux/psobjs.c (t1_builder_init, t1_builder_start_point): + Replace `path_begun' with `parse_state' and check parsing states. + +2004-05-10 George Williams + + * src/truetype/ttxgvar.c (ft_var_load_avar): Do free arrays in case + of error -- `avar' is optional so we can't rely on tt_done_blend + being called automatically. + +2004-05-09 George Williams + + * src/truetype/ttxgvar.c (ft_var_load_avar, ft_var_load_gvar): Fix + error handling. + +2004-05-07 Werner Lemberg + + * src/pfr/pfrobjs.c, src/pfr/pfrobjs.h (pfr_face_init, + pfr_face_done, pfr_face_get_kerning, pfr_slot_init, pfr_slot_done, + pfr_slot_load): Don't use PFR_XXX but FT_XXX arguments which are + typecast to the proper PFR_XXX types within the function. + Update code accordingly. + + * src/pfr/pfrdrivr.c (pfr_get_kerning, pfr_get_advance, + pfr_get_metrics, pfr_get_service): Don't use PFR_XXX but FT_XXX + arguments which are typecast to the proper PFR_XXX types within the + function. + Update code accordingly. + Use FT_CALLBACK_DEF throughout. + (pfr_metrics_service_rec, pfr_driver_class): Remove casts. + +2004-05-06 Masatake YAMATO + + * src/truetype/ttgxvar.c (ft_var_load_gvar): Use FT_FACE_STREAM. + (*): Rename local variable OffsetToData to offsetToData. + +2004-05-06 Werner Lemberg + + * src/cff/cffobjs.c (cff_size_done, cff_size_init, cff_size_reset, + cff_slot_done, cff_slot_init, cff_face_init, cff_face_done): Access + root fields directly. + * src/cff/cffdrivr.c (Load_Glyph): Access root fields directly. + + * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Save current + frame before calling TT_Vary_Get_Glyph_Deltas. + + * src/pcf/pcfdrivr.c (PCF_CMapRec): Rename `cmap' to `root' for + consistency. + (pcf_cmap_init, pcf_cmap_done, pcf_cmap_char_index, + pcf_cmap_char_next): Don't use PCF_XXX but FT_XXX arguments which + are typecast to the proper PCF_XXX types within the function. + Update code accordingly. + (pcf_cmap_class): Remove casts. + (PCF_Face_Done, PCF_Face_Init, PCF_Set_Pixel_Size): Don't use + PCF_XXX but FT_XXX arguments which are typecast to the proper + PCF_XXX types within the function. + Update code accordingly. + Use FT_CALLBACK_DEF throughout. + (PCF_Set_Point_Size): New wrapper function. + (PCF_Glyph_Load, pcf_driver_requester): Use FT_CALLBACK_DEF. + (pcf_driver_class): Remove casts. + +2004-05-04 Steve Hartwell + + * src/truetype/ttobjs.c (tt_driver_done): Fix typo. + +2004-05-04 Werner Lemberg + + * src/bdf/bdfdrivr.c (BDF_Face_Done, BDF_Face_Init, + BDF_Set_Pixel_Size): Don't use BDF_XXX but FT_XXX arguments which + are typecast to the proper BDF_XXX types within the function. + Update code accordingly. + Use FT_CALLBACK_DEF throughout. + (BDF_Set_Point_Size): New wrapper function. + (bdf_driver_class): Remove casts. + + * src/cff/cffdrivr.c (Get_Kerning, Load_Glyph, cff_get_interface): + Don't use CFF_XXX but FT_XXX arguments which are typecast to the + proper CFF_XXX types within the function. + Update code accordingly. + Use FT_CALLBACK_DEF throughout. + (cff_driver_class): Remove casts. + + * src/cff/cffobjs.h, src/cff/cffobjs.c (cff_size_done, + cff_size_init, cff_size_reset, cff_slot_done, cff_slot_init, + cff_face_init, cff_face_done, cff_driver_init, cff_driver_done): + Don't use CFF_XXX but FT_XXX arguments which are typecast to the + proper CFF_XXX types within the function. + Update code accordingly. + (cff_point_size_reset): New wrapper function. + + * src/cid/cidobjs.h, src/cid/cidobjs.c (cid_slot_done, + cid_slot_init, cid_size_done, cid_size_init, cid_size_reset, + cid_face_done, cid_face_init, cid_driver_init, cid_driver_done): + Don't use CID_XXX but FT_XXX arguments which are typecast to the + proper CID_XXX types within the function. + Update code accordingly. + (cid_point_size_reset): New wrapper function. + + * src/cid/cidgload.c, src/cid/cidgload.h (cid_slot_load_glyph): + Don't use CID_XXX but FT_XXX arguments which are typecast to the + proper CID_XXX types within the function. + Update code accordingly. + + * src/cid/cidriver.c (cid_get_interface): + Don't use CID_XXX but FT_XXX arguments which are typecast to the + proper CID_XXX types within the function. + Update code accordingly. + Use FT_CALLBACK_DEF. + (t1cid_driver_class): Remove casts. + + * src/truetype/ttdriver.c (tt_get_interface): Use FT_CALLBACK_DEF. + * src/truetype/ttgxvar.c (ft_var_load_avar): Don't free non-local + variables (this is done later). + (ft_var_load_avar): Fix call to FT_FRAME_ENTER. + (TT_Get_MM_Var): Fix size for `fvar_fields'. + (TT_Vary_Get_Glyph_Deltas): Handle deallocation of local variables + correctly. + + * src/base/ftdbgmem.c (ft_mem_debug_realloc): Don't abort if + current size is zero. + +2004-05-03 Steve Hartwell + + * src/truetype/ttobjs.h, src/truetype/ttobjs.c (tt_face_init, + tt_face_done, tt_size_init, tt_size_done, tt_driver_init, + tt_driver_done): Don't use TT_XXX but FT_XXX arguments which are + typecast to the proper TT_XXX types within the function. + Update code accordingly. + + * src/truetype/ttdriver.c (Get_Kerning, Set_Char_Sizes, + Set_Pixel_Sizes, Load_Glyph, tt_get_interface): Don't use TT_XXX but + FT_XXX arguments which are typecast to the proper TT_XXX types + within the function. + Update code accordingly. + (tt_driver_class): Remove casts. + +2004-05-02 Werner Lemberg + + * src/sfnt/ttload.c (tt_face_free_names): Check that `table->names' + is not NULL. Reported by Gordon Childs . + +2004-04-29 Werner Lemberg + + * docs/formats.txt: Add more information on PFR format. + +2004-04-28 Werner Lemberg + + * docs/formats.txt: New file. + * docs/CHANGES: Updated. + +2004-04-28 Masatake YAMATO + + * include/freetype/internal/tttypes.h (GX_BlendRec_) + [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Fix a typo. + + * src/truetype/ttgxvar.h (GX_BlendRec_): Fix a typo. + +2004-04-27 Masatake YAMATO + + * src/truetype/ttgxvar.h: Use FT_LOCAL instead of FT_LOCAL_DEF + for function declarations. + +2004-04-25 George Williams + + * src/truetype/ttgxvar.c (ft_var_apply_tuple): Fix typo. + +2004-04-25 Werner Lemberg + + * src/truetype/Jamfile, docs/CHANGES: Updated. + +2004-04-24 Werner Lemberg + + * src/pcf/pcfdrivr.c: Revert change from 2004-04-17. + * src/pcf/pcfutil.c: Use FT_LOCAL_DEF. + * src/pcf/pcfutil.h: Include FT_CONFIG_CONFIG_H. + Use FT_BEGIN_HEADER and FT_END_HEADER. + Use FT_LOCAL. + +2004-04-24 George Williams + + Add support for Apple's distortable font technology (in GX fonts). + + * devel/ftoption.h, include/freetype/config/ftoption.h + (TT_CONFIG_OPTION_GX_VAR_SUPPORT): New macro. + + * include/freetype/ftmm.h (FT_Var_Axis, FT_Var_Named_Style, + FT_MM_Var): New structures. + (FT_Get_MM_Var, FT_Set_Var_Design_Coordinates, + FT_Set_Var_Blend_Coordinates): New function declarations. + + * include/freetype/internal/services/svmm.h (FT_Get_MM_Var_Func, + FT_Set_Var_Design_Func): New typedefs. + Update MultiMasters service. + + * include/freetype/internal/tttypes.h + [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include FT_MULTIPLE_MASTERS_H. + (GX_Blend) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New typedef. + (TT_Face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New members `doblend' + and `blend'. + + * include/freetype/tttags.h (TTAG_avar, TTAG_cvar, TTAG_gvar): New + macros. + + * include/freetype/internal/fttrace.h: Add `ttgxvar'. + + * src/base/ftmm.c (FT_Get_MM_Var, FT_Set_Var_Design_Coordinates, + FT_Set_Var_Blend_Coordinates): New functions. + + * src/sfnt/sfobjs.c (sfnt_load_face) + [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Set FT_FACE_FLAG_MULTIPLE_MASTERS + flag for GX var fonts. + + * src/truetype/ttgxvar.c, src/truetype/ttgxvar.h: New files. + + * src/truetype/truetype.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include + ttgxvar.c. + + * src/truetype/ttdriver.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include + FT_MULTIPLE_MASTERS_H, FT_SERVICE_MULTIPLE_MASTERS_H, and ttgxvar.h. + (tt_service_gx_multi_masters) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: + New service. + (tt_services) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Updated. + + * src/truetype/ttgload.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include + ttgxvar.h. + (TT_Process_Simple_Glyph, load_truetype_glyph) + [TT_CONFIG_OPTION_GX_VAR_SUPPORT] :Support GX var fonts. + + * src/truetype/ttobjs.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include + ttgxvar.h. + (tt_done_face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Call + tt_done_blend. + + * src/truetype/ttpload.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include + ttgxvar.h. + (tt_face_load_cvt) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Call + tt_face_vary_cvt. + + * src/truetype/rules.mk (TT_DRV_SRC): Add ttgxvar.c. + + * src/type1/t1driver.c (t1_service_multi_masters): Add T1_Get_MM_Var + and T1_Set_Var_Design. + + * src/type1/t1load.c (FT_INT_TO_FIXED, FT_FIXED_TO_INT): New macros. + (T1_Get_MM_Var, T1_Set_Var_Design): New functions. + + * src/type1/t1load.h (T1_Get_MM_Var, T1_Set_Var_Design): New + function declarations. + +2004-04-23 Werner Lemberg + + * include/freetype/ftcache.h (FT_Get_CharMap_Index): Rename + declaration and move to... + * include/freetype/freetype.h (FT_Get_Charmap_Index): Here. + (FREETYPE_PATCH): Set to 9. + + * src/base/ftobjs.c (FT_Get_Charmap_Index): New function. + + * builds/unix/configure.ac (version_info): Set to 9:7:3. + * builds/unix/configure: Updated. + + * builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj: s/218/219/. + + * builds/freetype.mk (refdoc), README, Jamfile (RefDoc): + s/2.1.8/2.1.9/. + + * docs/CHANGES, docs/VERSION.DLL: Updated. + +2004-04-21 Werner Lemberg + + * src/cff/cffparse.c (cff_parser_run), src/psaux/psobjs.c + (ps_parser_load_field): Use FT_CHAR_BIT. + +2004-04-21 David Turner + + + * Version 2.1.8 released. + ========================= + + + * src/cff/cffobjs.c (cff_face_init): Fix a small memory leak. + + * src/autofit/afloader.c (af_loader_load_g), src/autofit/afmodule.c + (af_autofitter_load_glyph), src/base/ftdebug.c (FT_Trace_Get_Name): + Remove compiler warnings. + + * src/autofit/aftypes.h: Undefine AF_DEBUG. + + * src/lzw/zopen.c (rmask), src/pcf/pcfdrivr.c (pcf_service_bdf, + pcf_services), src/pcf/pcfread.c (tableNames), src/psaux/psobjs.c + (ft_char_table), src/type42/t42drivr.c (t42_service_glyph_dict, + t42_service_ps_font_name): Decorate data arrays with `const' to + avoid populating the `.data' segment. + + * src/lzw/Jamfile: New file. + +2004-04-20 Werner Lemberg + + * src/psaux/psobjs.c (T1Radix): Renamed to... + (ps_radix): This. + Update current cursor position. + + * docs/CHANGES: Updated. + +2004-04-18 Werner Lemberg + + * src/truetype/ttgload.c, src/truetype/ttgload.h (TT_Load_Glyph), + src/ttdriver.c (Load_Glyph): Change type of `glyph_index' to + FT_UInt. From Lex Warners. + +2004-04-17 Chisato Yamauchi + + * src/sfnt/ttload.c (tt_face_load_sfnt_header): Really fix change + from 2004-03-19. + + * src/bdf/bdfdrivr.c (BDF_Face_Init): Use `ft_strlen'. + + * src/pcf/pcfutil.c, src/pcf/pcfutil.h: Decorate functions with + `static'. + Remove unused function `RepadBitmap'. + * src/pcf/pcfdrivr.c: Don't include pcfutil.h. + +2004-04-16 Werner Lemberg + + * builds/unix/freetype-config.in (usage): Fix and improve usage + information. + +2004-04-15 Werner Lemberg + + * builds/unix/ftconfig.in, builds/vms/ftconfig.h: Define + FT_CHAR_BIT. + + * src/base/ftobjs.c (FT_Load_Glyph): Don't apply autohinting if + glyph is vertically distorted or mirrored. + + * src/cff/cffgload.c (cff_slot_load): Handle zero `size' properly + for embedded bitmaps. + + * docs/CHANGES: Updated. + +2004-04-15 bytesoftware + + * include/freetype/config/ftconfig.h, src/base/ftstream.c + (FT_Stream_ReadFields): More fixes using FT_CHAR_BIT. + +2004-04-14 Werner Lemberg + + * include/freetype/config/ftconfig.h (FT_CHAR_BIT): New macro. + +2004-04-14 Alex Strelnikov + + * src/cache/ftcsbits.c (ftc_snode_load): Initialize `*asize' in case + of error. + +2004-04-14 Werner Lemberg + + * src/base/ftmac.c [__GNUC__]: Define OS_INLINE. + * builds/unix/configure.ac: Don't try to remove `-ansi' compilation + switch on the Mac. + + * builds/unix/ltmain.sh: Regenerated with `libtoolize --force + --copy' from libtool 1.5.6. + * builds/unix/aclocal.m4: Regenerated with `aclocal -I .' from + automake 1.8a. + * builds/unix/configure: Regenerated with autoconf 2.59a. + +2004-04-13 Werner Lemberg + + * include/freetype/config/ftconfig.h: Use CHAR_BIT to define + size of FT_SIZEOF_xxx. + +2004-04-12 Chisato Yamauchi + + * include/freetype/internal/sfnt.h (TT_Find_SBit_Image_Func, + TT_Load_SBit_Metrics_Func): New typedefs. + (SFNT_Interface): Add find_sbit_image and load_sbit_metrics. + + * src/sfnt/sfdriver.c (sfnt_interface): Updated. + * src/sfnt/ttsbit.h (tt_find_sbit_image, tt_load_sbit_metrics): New + declarations. + * src/sfnt/ttsbit.c (find_sbit_image): Renamed to... + (tt_find_sbit_image): This. + Updated all callers. + (load_sbit_metrics): Renamed to... + (tt_load_sbit_metrics): This. + Updated all callers. + +2004-04-12 Werner Lemberg + + * configure: Accept makepp also. + + * builds/unix/detect.mk: Use proper path to unix-def.mk. + * builds/unix/unix-def.in (BUILD_DIR, PLATFORM): Remove. + * builds/unix/unix.mk (BUILD_DIR, PLATFORM): Define. + Use BUILD_DIR. + + * docs/INSTALL, docs/INSTALL.GNU, docs/INSTALL.UNX: Update + documentation on makepp. + +2004-04-11 Werner Lemberg + + * src/lzw/zopen.c: Don't include sys/param.h and sys/stat.h. + +2004-04-10 Werner Lemberg + + * src/lzw/ftlzw.c: Include zopen.h dependent on + FT_CONFIG_OPTION_USE_LZW. + + * src/base/ftdebug.c: s/index/idx/ to avoid compiler warnings. + +2004-04-02 Werner Lemberg + + * builds/unix/ltmain.sh: Regenerated with `libtoolize --force + --copy' from libtool 1.5.2. + * builds/unix/aclocal.m4: Regenerated with `aclocal -I .' from + automake 1.8a. + * builds/unix/configure: Regenerated with autoconf 2.59a. + +2004-04-01 Werner Lemberg + + * builds/unix/ft-munmap.m4 (FT_MUNMAP_PARAM): Fix arguments of + AC_COMPILE_IFELSE. + * builds/unix/aclocal.m4: Regenerated with `aclocal -I .' from + automake 1.8a. + * builds/unix/configure: Regenerated with autoconf 2.59a. + * builds/unix/config.guess, builds/unix/config.sub: Updated from + `config' CVS module at subversions.gnu.org. + * builds/unix/install-sh, builds/unix/mkinstalldirs: Updated from + `texinfo' CVS module at subversions.gnu.org. + * builds/freetype.mk (refdoc): Updated. + +2004-03-31 Werner Lemberg + + Handle broken FNT files which don't have a trailing NULL byte + in the face name string. + + * src/winfonts/winfnt.h (FNT_FontRec): New member `family_name'. + * src/winfonts/winfnt.c (fnt_font_done): Free font->family_name. + (FNT_Face_Init): Append a final zero byte to the font face name. + +2004-03-30 Werner Lemberg + + * src/sfnt/ttload.c (tt_face_load_sfnt_header): Fix change from + 2004-03-19. + +2004-03-27 Werner Lemberg + + * src/base/descrip.mms (OBJS): Add ftbbox.obj. + +2004-03-26 George Williams + + Add vertical phantom points. + + * include/freetype/internal/tttypes.h (TT_LoaderRec): Add + `top_bearing', `vadvance', `pp3', and `pp4'. + + * src/autofit/afloader.c (af_loader_load_g): Handle two more points. + + * src/autohint/ahhint.c (ah_hinter_load): Handle two more points. + * src/truetype/ttgload.c (Get_VMetrics): New function. + (TT_Load_Simple_Glyph, TT_Process_Simple_Glyph): Handle two more + points. + (load_truetype_glyph): Use Get_VMetrics. + Handle two more points. + (compute_glyph_metrics): Thanks to vertical phantom points we now + can always compute `advance_height' and `top_bearing'. + * src/truetype/ttobjs.h (TT_SubglyphRec): Add vertical phantom + points. + + + * src/autohint/ahglyph.c (ah_outline_load): Fix allocation of + `news'. + +2004-03-21 Werner Lemberg + + * src/bdf/bdfdrivr.c (BDF_Glyph_Load): Fix left side bearing. + +2004-03-20 Steve Hartwell + + * src/cache/ftcmru.c (FTC_MruList_RemoveSelection): Handle a NULL + value for `selection' as `select all'. + +2004-03-19 Steve Hartwell + + * src/sfnt/ttload.c (tt_face_load_sfnt_header): Reject face_index + values > 0 if loading non-TTC fonts. + + * src/base/ftmac.c (open_face_from_buffer): Set positive face_index + to zero before calling FT_Open_Face. + + * docs/CHANGES: Updated. + +2004-03-04 Werner Lemberg + + * Jamfile, vms_make.com, builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype/vcproj, include/freetype/ftmoderr.h: + Add LZW module. + + * Jamfile.in: Removed. + + * docs/CHANGES: Updated. + + * include/freetype/internal/ftobjs.h: s/MIN/FT_MIN/, s/MAX/FT_MAX/, + s/ABS/FT_ABS/. Updated all callers. + + * src/type1/t1load.c (parse_dict), src/pcf/pcfdrivr.c + (PCF_Face_Init): Use FT_ERROR_BASE. + +2004-03-04 Albert Chin + + Add support for PCF fonts compressed with LZW (extension .pcf.Z, + created with `compress'). + + * include/freetype/config/ftoption.h, devel/ftoption.h + (FT_CONFIG_OPTION_USE_LZW): New macro. + + * include/freetype/ftlzw.h: New file. + * include/freetype/config/ftheader.h (FT_LZW_H): New macro for + ftlzw.h. + + * src/lzw/*: New files. + + * src/pcf/pcfdrivr.c: Include FT_LZW_H. + (PCF_Face_Init): Try LZW also. + + * src/gzip/ftgzip.c: s/0/Gzip_Err_Ok/ where appropriate. + Beautify. + +2004-03-03 Werner Lemberg + + * src/pshinter/pshalgo.c (psh_hint_table_init): Simplify code. + +2004-03-02 Werner Lemberg + + Add embedded bitmap support to CFF driver. + + * src/cff/cffobjs.h (CFF_SizeRec): New structure. + + * src/cff/cffgload.c (cff_builder_init): Updated. + (cff_slot_load): Updated. + [TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: Load sbit. + + * src/cff/cffobjs.c (sbit_size_reset) + [TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: New function. + (cff_size_get_globals_funcs, cff_size_done, cff_size_init): Updated. + (cff_size_reset): Updated. + [TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: Call sbit_size_reset. + + * src/cff/cffdrivr.c (Load_Glyph): Updated. + (cff_driver_class): Use CFF_SizeRec. + + * docs/CHANGES: Updated. + +2004-03-01 Werner Lemberg + + * src/pshinter/pshglob.c (psh_globals_scale_widths): Don't use + FT_RoundFix but FT_PIX_ROUND. + (psh_blues_snap_stem): Don't use blue_shift but blue_threshold. + + * src/pshinter/pshalgo.c (PSH_STRONG_THRESHOLD_MAXIMUM): New macro. + (psh_glyph_find_string_points): Use PSH_STRONG_THRESHOLD_MAXIMUM. + (psh_glyph_find_blue_points): New function. Needed for fonts like + p052003l.pfb (URW Palladio L Roman) which have flex curves at the + base line within blue zones, but the flex curves aren't covered by + hints. + (ps_hints_apply): Use psh_glyph_find_blue_points. + +2004-02-27 Garrick Meeker + + * builds/unix/configure.ac: Fix compiler flags for + `--with-old-mac-fonts'. + * builds/unix/configure: Regenerated. + + * src/base/ftmac.c: s/TARGET_API_MAC_CARBON/!TARGET_API_MAC_OS8/. + (FT_New_Face_From_Resource): New function. + (FT_New_Face): Use FT_New_Face_From_Resource. + (FT_New_Face_From_FSSpec): Use FT_New_Face_From_Resource. + [__MWERKS__]: Don't include FSp_fopen.h. + +2004-02-26 Werner Lemberg + + * src/pshinter/pshglob.c (psh_globals_new): Fix value of + `dim->stdw.count'. + Don't assign default values to blue scale and blue shift. + +2004-02-25 Werner Lemberg + + * docs/CHANGES: Updated. + +2004-02-25 Garrick Meeker + Steve Hartwell + + Improve MacOS fond support. Provide a new API + `FT_New_Face_From_FSSpec' similar to `FT_New_Face'. + + * src/base/ftmac.c [__MWERKS__]: Include FSp_fpopen.h. + STREAM_FILE [__MWERKS__]: New macro. + (ft_FSp_stream_close, ft_FSp_stream_io) [__MWERKS__]: New functions. + (file_spec_from_path) [__MWERKS__]: Updated #if statement. + (get_file_type, make_lwfn_spec): Use `const' for argument. + (is_dfont) [TARGET_API_MAC_CARBON]: Removed. + (count_face_sfnt, count_faces): New functions. + (parse_fond): Do some range checking. + (read_lwfn): Change type of second argument. + No longer call FSpOpenResFile. + (OpenFileAsResource): New function. + (FT_New_Face_From_LWFN): Use `const' for second argument. + Use OpenFileAsResource. + (FT_New_Face_From_Suitcase): Change type of second argument. + No longer call FSpOpenResFile. + Loop over all resource indices. + (FT_New_Face_From_dfont) [TARGET_API_MAC_CARBON]: Removed. + (FT_GetFile_From_Mac_Name): Use `const' for first argument. + (ResourceForkSize): Removed. + (FT_New_Face): Updated to use new functions. + (FT_New_Face_From_FSSpec): New function. + + * include/freetype/ftmac.h: Updated. + +2004-02-24 Malcolm Taylor + + * src/autohint/ahhint.c (ah_hinter_load) : + Handle case where outline->num_vedges is zero while computing hinted + metrics. + +2004-02-24 Gordon Childs + + * src/cff/cffcmap.c (cff_cmap_unicode_init): Provide correct value + for `count'. + +2004-02-24 Werner Lemberg + + * include/freetype/t1tables.h (PS_PrivateRec): Add + `expansion_factor'. + + * src/pshinter/pshglob (psh_blues_scale_zones): Fix computation + of blues->no_overshoots -- `blues_scale' is stored with a + magnification of 1000, and `scale' returns fractional pixels. + + * src/type1/t1load.c (T1_Open_Face): Initialize `blue_shift', + `blue_fuzz', `expansion_factor', and `blue_scale' according to the + Type 1 specification. + + * src/type1/t1tokens.h: Handle `ExpansionFactor'. + + * docs/CHANGES: Updated. + +2004-02-24 Masatake YAMATO + + Provide generic access to MacOS resource forks. + + * src/base/ftrfork.c, include/freetype/internal/ftrfork.h: New + files. + + * src/base/ftobjs.c: Include FT_INTERNAL_RFORK_H. + (Mac_Read_POST_Resource, Mac_Read_sfnt_Resource): Remove arguments + `resource_listoffset' and `resource_data' and adapt code + accordingly. These values are calculated outside of the function + now. + Add new argument `offsets'. + (IsMacResource): Use `FT_Raccess_Get_HeaderInfo' and + `FT_Raccess_Get_DataOffsets'. + (load_face_in_embedded_rfork): New function. + (load_mac_face): Use load_face_in_embedded_rfork. + (ft_input_stream_new): Renamed to... + (FT_Stream_New): This. Use FT_BASE_DEF. Updated all callers. + (ft_input_stream_free): Renamed to... + (FT_Stream_Free): This. Use FT_BASE_DEF. Updated all callers. + + * src/base/ftbase.c: Include ftrfork.c. + + * src/base/rules.mk (BASE_SRC), src/base/Jamfile: Updated. + + * include/freetype/internal/internal.h (FT_INTERNAL_RFORK_H): + New macro. + + * include/freetype/internal/fttrace.h: Added `rfork' as a new + trace definition. + + * include/freetype/internal/ftstream.h: Declare FT_Stream_New and + FT_Stream_Free. + + * include/freetype/config/ftoption.h, devel/ftoption.h + (FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK): New option. + + * include/freetype/config/ftstdlib.h (ft_strrchr): New macro. + +2004-02-23 Werner Lemberg + + * docs/CHANGES: Updated. + + * include/freetype/internal/ftdebug.h: Include FT_FREETYPE_H. + +2004-02-23 Masatake YAMATO + + Provide a simple API to control FreeType's tracing levels. + + * include/freetype/internal/ftdebug.h (FT_Trace_Get_Count, + FT_Trace_Get_Name): New declarations. + + * src/base/ftdebug.c (FT_Trace_Get_Count, FT_Trace_Get_Name): New + functions. + +2004-02-23 David Turner + + * src/autofit/afhints.c, src/autofit/afhints.h, + src/autofit/aflatin.c, src/autofit/afloader.c, src/types.h: Grave + bugs have been fixed. The auto-fitter works, doesn't crash, but + still produces unexpected results... + +2004-02-21 Werner Lemberg + + * src/pshinter/pshalgo.c (PSH_STRONG_THRESHOLD): Changed to hold + the accepted shift for strong points in fractional pixels (which + is a heuristic value). + (psh_glyph_find_strong_points): Compute threshold for + psh_hint_table_find_strong_points. + (psh_hint_table_find_strong_point): Add parameter to pass threshold. + +2004-02-20 Werner Lemberg + + * src/pshinter/pshrec.c (ps_mask_table_set_bits): Don't call + ps_mask_table_alloc but ps_mask_table_last. + (ps_hints_t2mask): Use correct position and number for vertical + and horizontal hinter mask bits. + + * docs/CHANGES: Updated. + +2004-02-19 Werner Lemberg + + * src/base/ftstroke.c (FT_Glyph_StrokeBorder): Fix enum handling. + * src/cff/cffdrivr.c (cff_get_cmap_info): Remove compiler warning. + +2004-02-18 Werner Lemberg + + * include/freetype/freetype.h: Document FT_LOAD_TARGET_XXX properly. + + * src/base/ftglyph.c (ft_bitmap_glyph_class, + ft_outline_glyph_class): Tag with FT_CALLBACK_TABLE_DEF. + + * src/smooth/ftsmooth.c (ft_smooth_render): Handle + FT_RENDER_MODE_LIGHT. + +2004-02-17 Werner Lemberg + + Fix callback functions in cache module. + + * src/cache/ftccback.h: New file for callback declarations. + + * src/cache/ftcbasic.c (ftc_basic_family_compare, + ftc_basic_family_init, ftc_basic_family_get_count, + ftc_basic_family_load_bitmap, ftc_basic_family_load_glyph, + ftc_basic_gnode_compare_faceid): Use FT_CALLBACK_DEF. + (ftc_basic_image_family_class, ftc_basic_image_cache_class, + ftc_basic_sbit_family_class, ftc_basic_sbit_cache_class): + Use FT_CALLBACK_TABLE_DEF and local wrapper functions. + + * src/cache/ftccache.c: Include ftccback.h. + (ftc_cache_init, ftc_cache_done): New wrapper functions which use + FT_LOCAL_DEF. + + * src/cache/ftccmap.c: Include ftccback.h. + (ftc_cmap_cache_class): Use local wrapper functions. + + * src/cache/ftcglyph.c: Include ftccback.h. + (ftc_gnode_compare, ftc_gcache_init, ftc_gcache_done): New wrapper + functions which use FT_LOCAL_DEF. + + * src/cache/ftcimage.c: Include ftccback.h. + (ftc_inode_free, ftc_inode_new, ftc_inode_weight): New wrapper + functions which use FT_LOCAL_DEF. + + * src/cache/ftcmanag.c (ftc_size_list_class, ftc_face_list_class): + Use FT_CALLBACK_TABLE_DEF. + + * src/cache;/ftcsbits.c: Include ftccback.h. + (ftc_snode_free, ftc_snode_new, ftc_snode_weight, + ftc_snode_compare): New wrapper functions which use FT_LOCAL_DEF. + + * src/cache/rules.mk (CACHE_DRV_H): Add ftccback.h. + +2004-02-17 Masatake YAMATO + + * include/freetype/ftmac.h (FT_GetFile_From_Mac_Name): Fix a typo + (FT_EXPORT_DEF -> FT_EXPORT). + + * include/freetype/ftxf86.h (FT_Get_X11_Font_Format): Ditto. + +2004-02-15 Werner Lemberg + + * src/base/ftobjs.c (FT_Set_Char_Size): Fix typo. + +2004-02-14 Masatake YAMATO + + * builds/unix/ftsystem.c: Include errno.h. + (ft_close_stream): Renamed to... + (ft_close_stream_by_munmap): This. + (ft_close_stream_by_free): New function. + (FT_Stream_Open): Use fallback method if mmap fails. + Use proper function for closing the stream. + +2004-02-14 Werner Lemberg + + * src/type1/t1load.c (parse_dict): Initialize `start_binary'. + +2004-02-13 Robert Etheridge + + * src/type42/t42objs.c (T42_Face_Init), src/type1/t1objs.c + (T1_Face_Init), src/cid/cidobjs.c (cid_face_init): Fix computation + of underline_position and underline_thickness. + +2004-02-12 Werner Lemberg + + * src/base/ftobjs.c (FT_Set_Char_Size): Return immediately if + ppem values don't change. Suggested by Graham Asher. + +2004-02-11 Werner Lemberg + + * src/cid/cidload.c (cid_face_open): Always allocate + face->cid_stream so that we can deallocate it safely. + +2004-02-10 Werner Lemberg + + Make the PS parser more tolerant w.r.t. non-standard font data. In + general, an error is only reported in case of a syntax error; a + wrong type is now simply ignored (if possible). To be independent + of the order of various MM-specific keywords, the parse_shared_dict + routine has been removed -- the PS parser is now capable to skip + this data. It no longer fails on parsing e.g. + + dup /WeightVector exch def + + Since the token following /WeightVector isn't `[' (starting an + array) it is simply ignored. + + * include/freetype/fterrdef.h: Define `FT_Err_Ignore' (0xA2) as a + new internal error value. + + * src/type1/t1load.c (parse_blend_axis_types, + parse_blend_design_positions, parse_blend_design_map): Return + T1_Err_Ignore if no proper array is following the keyword. + (parse_weight_vector): Use T1_ToTokenArray, initializing `blend' + structure, if necessary. + Return T1_Err_Ignore if no proper array is following the keyword. + (parse_shared_dict): Removed. + (parse_encoding): Set parser->root.error to return T1_Err_Ignore + if no result can be obtained. + Check for errors before accessing `elements' array. + (t1_keywords): Remove /shareddict. + (parse_dict): Reset error if t1_load_keyword returns T1_Err_Ignore. + Set keyword_flag only in case of success. + Check error code if skipping an unrecognized token. + (T1_Open_Face) [!T1_CONFIG_OPTION_NO_MM_SUPPORT]: Call T1_Done_Blend + if blend commands haven't set up a proper MM font. + + * src/psaux/psobjs.c (ps_parser_load_field_table): Remove special + code for synthetic fonts. + Return PSaux_Err_Ignore if no proper value has been found. + +2004-02-09 Werner Lemberg + + * src/cff/cffgload.c (cff_decoder_parse_charstrings) + : Preserve glyph width before calling + cff_operator_seac. + +2004-02-09 Martin Muskens + + * src/cff/cffgload.c (cff_decoder_parse_charstrings): Handle special + first argument for `hintmask' and `cntrmask' operators also. + +2004-02-08 Werner Lemberg + + * builds/unix/configure.in: Call AC_SUBST for `enable_shared', + `hardcode_libdir_flag_spec', and `wl'. + * builds/unix/configure: Regenerated. + + * builds/unix/freetype-config.in: Make --prefix and --exec-prefix + actually work. + Report a proper --rpath (or -R) value for --libs argument if a + shared library has been built. + + * docs/CHANGES: Updated. + +2004-02-07 Keith Packard + + * src/bdf/bdfdrivr.c (BDF_Face_Init, BDF_Set_Pixel_Size): Fix + computation of various vertical and horizontal metric values. + + * src/pcfdrivr.c (PCF_Set_Pixel_Size), src/pcfread (pcf_load_font): + Ditto. + +2004-02-07 Werner Lemberg + + * builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.dsw, docs/CHANGES: Updated. + +2004-02-07 Vitaliy Pasternak + + * builds/win32/visualc/freetype.sln, + builds/win32/visualc/freetype.vcproj: New files for VS.NET 2003. + +2004-02-03 Werner Lemberg + + * include/freetype/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP): + Initialize `node'. + * src/type1/t1load.c (parse_dict): Initialize `have_integer'. + +2004-02-02 Werner Lemberg + + * src/type1/t1load.c (parse_dict): Handle `RD' and `-|' commands + outside of /Subrs or /CharStrings. This can happen if there is + additional code manipulating those two arrays so that FreeType + doesn't recognize them properly. + (T1_Open_Face): Improve an error message. + +2004-02-01 Werner Lemberg + + * src/type1/t1load.c (parse_charstrings): Exit immediately if + there are no elements in /CharStrings. This is needed for fonts + like Optima-Oblique which not only define /CharStrings but access it + also. + +2004-02-01 David Turner + + * src/sfnt/Jamfile: Removing `ttcmap' from the list of sources. + + * include/freetype/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP) + : Provide macro version which doesn't use inline code. + * include/freetype/cache/ftcglyph.h (FTC_GCACHE_LOOKUP_CMP) + : Ditto. + Use FTC_MRULIST_LOOKUP_CMP. + * include/freetype/cache/ftcmru.h (FTC_MRULIST_LOOKUP_CMP): New + macro. + (FTC_MRULIST_LOOKUP): Use it. + + * src/cache/Jamfile (_sources), src/cache/descrip.mms: Updated. + * src/cache/ftcbasic.c: Fix compiler warnings. + * src/cache/ftcmanag.c (FTC_Manager_LookupSize, + FTC_Manager_LookupFace) : Use FTC_MRULIST_LOOKUP_CMP. + * src/cache/ftcmru.c (FTC_MruList_Find): Fix a bug (found after + heavy testing). + + * Jamfile: Updating `refdoc' target, and adding `autohint' to the + list of modules to build. Both the autohinter and autofitter will + be built by default. But which one will be used is determined by + the content of `ftmodule.h'. + + * src/autofit/*: Many updates, but the code is still buggy... + +2004-01-31 Werner Lemberg + + * src/cff/cffgload.c (cff_operator_seac): Fix magnitude of + accent offset. + Update code similarly to the seac support for Type 1 fonts. + (cff_decoder_parse_charstrings) : Fix magnitude + of accent offset. + Don't hint glyphs twice if seac is emulated. + : Assign correct point tags. + * docs/CHANGES: Updated. + +2004-01-30 Werner Lemberg + + * src/type1/t1parse.c (T1_Get_Private_Dict): Use FT_MEM_MOVE, not + FT_MEM_COPY, for copying the private dict. + + * src/type1/t1load.c (parse_subrs): Assign number of subrs only + in first run. + (parse_charstrings): Parse /CharStrings in second run without + assigning values. + (parse_dict): Skip all /CharStrings arrays but the first. We need + this for non-standard fonts like `Optima' which have different + outlines depending on the resolution. Note that there is no + guarantee that we get fitting /Subrs and /CharStrings arrays; this + can only be done by a real PS interpreter. + +2004-01-29 Antoine Leca + + * builds/win32/visualc/index.html: New file, giving detailed + explanations about forcing CR+LF line endings for the VC++ project + files. + +2004-01-22 Garrick Meeker + + * src/cff/cffload.c (cff_subfont_load): Initialize `dict'. + +2004-01-22 Werner Lemberg + + Add support for the hexadecimal representation of binary data + started with `StartData' in CID-keyed Type 1 fonts. + + * include/freetype/internal/t1types.h (CID_FaceRec): Add new + members `binary_data' and `cid_stream'. + + * src/cid/cidload.c (cid_read_subrs): Use `face->cid_stream'. + (cid_hex_to_binary): New auxiliary function. + (cid_face_open): Add new argument `face_index' to return quickly + if less than zero. Updated all callers. + Call `cid_hex_to_binary', then open and assign memory stream to + `face->cid_stream' if `parser->binary_length' is non-zero. + * src/cid/cidload.h: Updated. + + * src/cid/cidobjs.c (cid_face_done): Free `binary_data' and + `cid_stream'. + + * src/cid/cidparse.c (cid_parser_new): Check arguments to + `StartData' and set parser->binary_length accordingly. + * src/cid/cidparse.h (CID_Parser): New member `binary_length'. + + * src/cid/cidgload.c (cid_load_glyph): Use `face->cid_stream'. + + * docs/CHANGES: Updated. + +2004-01-21 Werner Lemberg + + include/freetype/config/ftstdlib.h (ft_atoi): Replaced with... + (ft_atol): This. + * src/base/ftdbgmem.c: s/atol/ft_atol/. + * src/type42/t42drivr.c: s/ft_atoi/ft_atol/. + +2004-01-20 Masatake YAMATO + + * include/freetype/ftcache.h: Delete duplicated definition of + FTC_FaceID. + + * src/cff/cffdrivr.c (cff_get_cmap_info): Call sfnt module's TT CMap + Info service function if the cmap comes from sfnt. Return 0 if the + cmap is sythesized in cff module. + +2004-01-20 David Turner + + * src/cache/ftcmanag.c (ftc_size_node_compare): Call + FT_Activate_Size. + +2004-01-20 Werner Lemberg + + * src/type1/t1parse.c (T1_Get_Private_Dict): Skip exactly one + CR, LF, or CR/LF after `eexec'. + +2004-01-18 David Turner + + * src/sfnt/ttsbit.c (tt_face_set_sbit_strike): Remove compiler + warning. + + * src/tools/docmaker/*: Updating beautifier tool. + +2004-01-15 David Turner + + * src/base/ftoutln.c (ft_orientation_extremum_compute): Fix + infinite loop bug. + + * include/freetype/ftstroke.h: Include FT_GLYPH_H. + (FT_Stroker_Rewind, FT_Glyph_Stroke, FT_Glyph_StrokeBorder): New + declarations. + + * src/base/ftstroke.c: Include FT_INTERNAL_OBJECTS_H. + (FT_Outline_GetOutsideBorder): Inverse result. + (FT_Stroker_Rewind, FT_Glyph_Stroke, FT_GlyphStrokeBorder): New + functions. + (FT_Stroker_EndSubPath): Close path if needed. + (FT_Stroker_Set, FT_Stroker_ParseOutline): Use FT_Stroker_Rewind. + + * include/freetype/cache/ftcmanag.h (FTC_ScalerRec, + FTC_Manager_LookupSize): Moved to... + * include/freetype/ftcache.h (FTC_ScalerRec, + FTC_Manager_LookupSize): Here. + + * src/tools/docmaker/docbeauty.py: New file to beautify the + documentation comments (e.g., to convert them to single block border + mode). + * src/tools/docmaker/docmaker.py (file_exists, make_file_list): + Moved to... + * src/tools/docmaker/utils.py (file_exists, make_file_list): Here. + +2004-01-14 David Turner + + * include/freetype/internal/ftmemory.h (FT_ARRAY_COPY, + FT_ARRAY_MOVE): New macros to make copying arrays easier. + Updated all relevant code to use them. + +2004-01-14 Werner Lemberg + + * src/cff/cffload.c (cff_font_load): Load charstrings_index earlier. + Use number of charstrings as argument to CFF_Load_FD_Select (as + documented in the CFF specs). + +2004-01-13 Graham Asher + + * src/pshinter/pshalgo.c (psh_glyph_init): Move assignment of + `glyph->memory' up to free arrays properly in case of failure. + +2004-01-10 Masatake YAMATO + + Make `FT_Get_CMap_Language_ID' work with CFF. Bug reported by + Steve Hartwell . + + * src/cff/cffdrivr.c: Include FT_SERVICE_TT_CMAP_H. + (cff_services): Added an entry for FT_SERVICE_ID_TT_CMAP. + (cff_get_cmap_info): New function. + (cff_service_get_cmap_info) New entry for cff_services. + + * src/sfnt/ttcmap0.c: Exit loop after a format match has been found. + Suggested by Steve Hartwell . + +2004-01-03 Masatake YAMATO + + * src/base/ftobjs.c (destroy_charmaps): New function. + (destroy_face, open_face): Use `destroy_charmaps'. + +2004-01-01 Werner Lemberg + + * docs/CHANGES: Updated. + +2004-01-01 Michael Jansson + + * src/winfonts/winfnt.c (FNT_Size_Set_Pixels): Fix sign of + size->metrics.descender. + +2003-12-31 Wolfgang Domröse + + * src/cff/cffgload.c (cff_decoder_parse_charstrings) + [FT_DEBUG_LEVEL_TRACE]: Use `%ld' in FT_TRACE4. + : Change type of dx and dy to FT_Pos and remove + cast for accessing arguments. + +2003-12-31 Werner Lemberg + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Revert previous + change. It's not necessary. + +2003-12-29 Smith Charles + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Handle `repeated + flags set' correctly. + +2003-12-29 Werner Lemberg + + * src/cff/cffobjs.c (cff_face_init): Fix memory leak by deallocating + `full' and `weight' properly. + * src/cff/cffgload.c (cff_decoder_parse_charstrings) + [FT_DEBUG_LEVEL_TRACE]: Use `0x' as prefix for + tracing output. + +2003-12-26 Werner Lemberg + + * include/freetype/internal/sfnt.h (TT_Set_SBit_Strike_Func): + Use FT_UInt for ppem values. + * src/sfnt/ttsbit.c (tt_face_set_sbit_strike): Use FT_UInt for + ppem values. + * src/sfnt/ttsbit.h: Updated. + + * src/base/ftobjs.c (FT_Set_Pixel_Sizes): Don't allow ppem values + larger than -0FFFF. + +2003-12-25 Werner Lemberg + + * src/base/fttrigon.c, src/base/ftgloadr.c: Inlude + FT_INTERNAL_OBJECTS_H. + + * src/base/ftstroke.c (FT_Outline_GetInsideBorder, + FT_Outline_GetOutsideBorder): s/or/o/ to make it compile with + C++ compilers. + + * src/cache/ftcmru.c, include/freetype/cache/ftcmru.h: + s/select/selection/ to avoid compiler warning. + * src/cff/cffload.h: s/select/ftselect/ to avoid potential + compiler warning. + +2003-12-24 Werner Lemberg + + * src/cache/ftcsbits.c (FTC_SNode_Weight): + s/FTC_SBIT_ITEM_PER_NODE/FTC_SBIT_ITEMS_PER_NODE/. + +2003-12-24 David Turner + + * Fixed compilation problems in the cache sub-system. + + * Partial updates to src/autofit. + + * Jamfile (FT2_COMPONENTS): Add autofit module. + +2003-12-23 Werner Lemberg + + * src/cff/cffgload.c (cff_lookup_glyph_by_stdcharcode): Handle + CID-keyed fonts. + +2003-12-23 David Turner + + * include/freetype/internal/ftobjs.h (FT_PAD_FLOOR, FT_PAD_ROUND, + FT_PAD_CEIL, FT_PIX_FLOOR, FT_PIX_ROUND, FT_CEIL): New macros. They + are used to avoid compiler warnings with very pedantic compilers. + Note that `(x) & -64' causes a warning if (x) is not signed. Use + `(x) & ~63' instead! + Updated all related code. + + Add support for extraction of `inside' and `outside' borders. + + * src/base/ftstroke.c (FT_StrokerBorder): New enumeration. + (FT_Outline_GetInsideBorder, FT_Outline_GetOutsideBorder, + FT_Stroker_GetBorderCounts, FT_Stroker_ExportBorder): New functions. + (FT_StrokeBorderRec): New boolean member `valid'. + (ft_stroke_border_get_counts): Updated. + * include/freetype/ftstroke.h: Updated. + +2003-12-22 Werner Lemberg + + * include/freetype/ftwinfnt.h (FT_WinFNT_ID_*): New definitions + to describe the `charset' field in FT_WinFNT_HeaderRec. + * src/winfonts/winfnt.c (FNT_Face_Init): Set encoding to + FT_ENCODING_NONE except for FT_WinFNT_ID_MAC. + + * include/freetype/freetype.h (FT_Encoding): Improve comment, + based on work by Detlef Würkner . + + * docs/CHANGES: Updated. + +2003-12-22 David Turner + + * include/freetype/ftcache.h, + include/freetype/cache/ftcmanag.h, + include/freetype/cache/ftccache.h, + include/freetype/cache/ftcmanag.h, + include/freetype/cache/ftcmru.h (added), + include/freetype/cache/ftlru.h (removed), + include/freetype/cache/ftcsbits.h, + include/freetype/cache/ftcimage.h, + include/freetype/cache/ftcglyph.h, + src/cache/ftcmru.c, + src/cache/ftcmanag.c, + src/cache/ftccache.c, + src/cache/ftcglyph.c, + src/cache/ftcimage.c, + src/cache/ftcsbits.c, + src/cache/ftccmap.c, + src/cache/ftcbasic.c (added), + src/cache/ftclru.c (removed): + + *Complete* rewrite of the cache sub-system to `solve' the + following points: + + - all public APIs have been moved to FT_CACHE_H, everything + under `include/freetype/cache' is only needed by client + applications that want to implement their own caches + + - a new function named FTC_Manager_RemoveFaceID to deal + with the uninstallation of FaceIDs + + - the image and sbit cache are now abstract classes, that + can be extended much more easily by client applications + + - better performance in certain areas. Further optimizations + to come shortly anyway... + + - the FTC_CMapCache_Lookup function has changed its signature, + charmaps can now only be retrieved by index + + - FTC_Manager_Lookup_Face => FTC_Manager_LookupFace + FTC_Manager_Lookup_Size => FTC_Manager_LookupSize (still in + private header for the moment) + +2003-12-21 Werner Lemberg + + * src/type1/t1load.c (parse_dict): Stop parsing if `eexec' keyword + is encountered. + +2003-12-19 Werner Lemberg + + * src/cff/cfftypes.h (CFF_MAX_CID_FONTS): Increase to 32. For + example, the Japanese Hiragino font already contains 15 subfonts. + + * src/cff/cffload.c (cff_font_load): Deallocate `sids' array for + CID-keyed fonts. + + * devel/ftoption.h: Define FT_DEBUG_MEMORY. + +2003-12-18 Werner Lemberg + + * include/freetype/ttnameid.h (TT_ADOBE_ID_LATIN_1): New macro. + * src/type1/t1objs.c (T1_Face_Init): Use TT_ADOBE_ID* values. + +2003-12-18 Werner Lemberg + + * src/cff/cfftypes.h (CFF_FontRecDictRec): Change type of + `cid_count' to `FT_ULong'. + + * src/cff/cffgload.c (cff_slot_load): Take care of empty `cids' + array. + + * src/cff/cffload.c (cff_charset_done): Free `cids' array. + (cff_font_load): Create cids array only for CID-keyed fonts which + are subsetted. + + * src/cff/cffobjs.c (cff_face_init): Check the availability of + the PSNames modules for non-pure CFFs also. + Set FT_FACE_FLAG_GLYPH_NAMES for a non-pure CFF also if it isn't + CID-keyed. + + * src/cff/rules.mk (CFF_DRV_H): Add cfftypes.h. + +2003-12-17 Werner Lemberg + + * src/sfnt/sfobjs.c (sfnt_init_face): Don't set + FT_FACE_FLAG_GLYPH_NAMES if the font contains a version 3.0 `post' + table. + + * docs/CHANGES: Updated. + +2003-12-17 Masatake YAMATO + + Add new function FT_Get_CMap_Language_ID to extract the language ID + for TrueType/sfnt fonts. + + * include/freetype/internal/services/svttcmap.h: New file. + * include/freetype/internal/ftserv.h (FT_SERVICE_TT_CMAP_H): Add + svttcmap.h. + + * src/sfnt/sfdriver.c: Include ttcmap0.h. + (tt_service_get_cmap_info): New service. + (sfnt_services): Updated. + + * src/sfnt/ttcmap0.c (tt_cmap*_get_info): New functions. + (tt_cmap*_class_rec): Add tt_cmap*_get_info members. + (tt_get_cmap_info): New function. + * src/sfnt/ttcmap0.h: Include FT_SERVICE_TT_CMAP_H. + (TT_CMap_ClassRec): New field `get_cmap_info'. + (tt_get_cmap_info): New declaration. + + * src/base/ftobjs.c: Include FT_SERVICE_TT_CMAP_H. + (FT_Get_CMap_Language_ID): New function implementation. + * include/freetype/tttables.h (FT_Get_CMap_Language_ID): New + function declaration. + +2003-12-16 Werner Lemberg + + * src/sfnt/ttcmap.c, src/sfnt/ttcmap.h: Removed. Obsolete. + + * include/freetype/internal/sfnt.h (SFNT_Interface): Remove + obsolete fields `load_charmap' and `free_charmap'. + (TT_CharMap_Load_Func, TT_CharMap_Free_Func): Removed. + * src/sfnt/sfnt.c: Don't include ttcmap.c. + * src/sfnt/rules.mk (SFNT_DRV_SRC): Don't include ttcmap.c. + * src/sfnt/ttload.c: Don't include ttcmap.h. + * src/sfnt/sfdriver.c: Don't include ttcmap.h. + (sfnt_interface): Updated. + + * include/freetype/internal/tttypes.h (TT_TableDirRec, + TT_CMapDirRec, TT_CMapDirEntryRec, TT_CMap0, TT_CMap2SubHeaderRec, + TT_CMap2Rec, TT_CMap4Segment, TT_CMap4Rec, TT_CMap6, + TT_CMapGroupRec, TT_CMap8_12Rec, TT_CMap10Rec, TT_CharMap_Func, + TT_CharNext_Func, TT_CMapTableRec, TT_CharMapRec): Removed. + Obsolete. + * src/cff/cffobjs.h (CFF_CharMapRec): Removed. Obsolete. + +2003-12-15 Werner Lemberg + + * docs/CHANGES: Updated. + +2003-12-15 Wolfgang Domröse + + * builds/atari/*: New directory for building FreeType 2 on Atari + with the PureC compiler. + +2003-12-12 Wolfgang Domröse + + * src/type1/t1gload.c (T1_Parse_Glyph_And_Get_Char_String): Add + cast. + * src/cff/cffdrivr.c (cff_ps_has_glyph_names): Assure that return + value is either 0 or 1. + +2003-12-12 Werner Lemberg + + * src/cff/cffdrivr.c (cff_get_glyph_name): Improve error message. + (cff_get_name_index): Return if no PSNames service is available. + (cff_ps_has_glyph_names): Handle CID-keyed fonts correctly. + * src/cff/cfftypes.h (CFF_CharsetRec): New field `cids', used for + CID-keyed fonts. This is the inverse mapping of `sids'. + * src/cff/cffload.c (cff_charset_load): New argument `invert'. + Initialize charset->cids if `invert' is set. + (cff_font_load): In call to cff_charset_load, set `invert' to true + for CID-keyed fonts. + * src/cff/cffgload.c (cff_slot_load): Handle glyph index as CID + and map it to the real glyph index. + + * docs/CHANGES: Updated. + +2003-12-11 Werner Lemberg + + * src/cff/cffobjs.c (cff_face_init): Don't set + FT_FACE_FLAG_GLYPH_NAMES for CID-keyed fonts. + Don't construct a cmap for CID-keyed fonts. + +2003-12-10 Werner Lemberg + + Use implementation specific SID value 0xFFFF to indicate that + a dictionary element is missing. + + * src/cff/cffload.c (cff_subfont_load): Initialize all fields + which hold SIDs to 0xFFFF. + (cff_index_get_sid_string): Handle SID value 0xFFFF. + Handle case where `psnames' is zero. + (cff_font_load): Updated. + Don't load encoding for CID-keyed CFFs. + + * src/cff/cffobjs.c (cff_face_init): Updated. + Don't check for PSNames module if font is CID-keyed. + Compute style name properly (using the same algorithm as in the + CID driver). + Fix computation of style flags. + + * src/cff/cfftoken.h: Comment out handling of base_font_name. + Rename `postscript' field to `embedded_postscript' + * src/cff/cfftypes.h (CFF_FontRecDictRec): Remove `base_font_name' + and `postscript'. + +2003-12-10 Detlef Würkner + + * src/pcf/pcfdrivr.c (pcf_get_charset_id): New function (a clone + of the similar BDF function). + (pcf_service_bdf): Use it. + +2003-12-09 Werner Lemberg + + * src/sfnt/sfobjs.c (sfnt_load_face): Set FT_FACE_FLAG_GLYPH_NAMES + only if a `post' table is present. + +2003-12-09 George Williams + + * src/base/ftobjs.c (load_mac_face): Recent versions of Linux + support Mac's HFS+ file system, thus enable code to read /rsrc on + non-Macintosh platforms also. + +2003-12-08 Werner Lemberg + + * include/freetype/internal/psaux.h (PS_TableRec): Change type + of `lengths' to FT_PtrDist. + (T1_DecoderRec): Change type of `subrs_len' to FT_PtrDist. + * include/freetype/internal/t1types.h (T1_FontRec): Change type + of `subrs_len' and `charstrings_len' to FT_PtrDist. + + * src/base/ftobjs.c (Mac_Read_POST_Resource): Replace `junk' + variable with better solution. + (IsMacResource): Remove unused variable `map_len'. + Replace `junk' variable with better solution. + (FT_Open_Face) [!FT_MACINTOSH]: Add conditional + FT_CONFIG_OPTION_MAC_FONTS. + +2003-12-08 Wolfgang Domröse + + * src/autohint/ahhint.c (ah_hinter_hint_edges, + ah_hinter_align_strong_points): Add some casts. + + * src/base/ftoutln.c (FT_OrientationExtremumRec): Change type + of `pos' to FT_Long. + + * src/base/ftobjs.c (Mac_Read_POST_Resource, + Mac_Read_sfnt_Resource): Change type of `len' to FT_Long. + + * src/type42/t42parse.c (t42_parse_dict): Add cast for `n_keywords'. + +2003-12-07 Werner Lemberg + + * docs/raster.txt: New file, taken from FreeType 1 and completely + revised. + +2003-12-04 Masatake YAMATO + + * src/type1/t1driver.c (Get_Interface): Remove FT_UNUSED for + t1_interface. t1_interface is used. + +2003-11-27 David Turner + + * src/pfr/pfrdrivr.c (pfr_get_metrics): Revert incorrect change of + 2003-11-23: For PFR fonts, metrics->x_scale and metrics->y_scale are + the scaling values for outline units, not for metric units. + +2003-11-25 Werner Lemberg + + * src/base/ftcalc.c, include/freetype/internal/ftcalc.h + (FT_MulDiv_No_Round): Surround code with `#ifdef + TT_CONFIG_OPTION_BYTECODE_INTERPRETER ... #endif'. + +2003-11-23 Werner Lemberg + + * src/base/ftcalc.c (FT_MulDiv_No_Round): New function (32 and + 64 bit version). + * include/freetype/internal/ftcalc.h: Updated. + + * src/truetype/ttinterp.c (TT_MULDIV_NO_ROUND): New macro. + (TT_INT64): Removed. + (DO_DIV): Use TT_MULDIV_NO_ROUND. + + * src/pfr/pfrdrivr.c (pfr_get_metrics): Directly use + metrics->x_scale and metrics->y_scale. + +2003-11-22 Rogier van Dalen + + * src/truetype/ttinterp.c (CUR_Func_move_orig): New macro. + (Direct_Move_Orig, Direct_Move_Orig_X, Direct_Move_Orig_Y): New + functions. Similar to Direct_Move, Direct_Move_X, and + Direct_Move_Y but without touching. + (Compute_Funcs): Use new functions. + + (Round_None, Round_To_Grid, Round_To_Half_Grid, Round_Down_To_Grid, + Round_Up_To_Grid, Round_To_Double_Grid, Round_Super, + Round_Super_45): Fix rounding of value zero. + + (DO_DIV): Don't use TT_MULDIV. + + (Ins_SHC): This instruction actually touches the points. + (Ins_MSIRP): Fix undocumented behaviour. + + * src/truetype/ttinterp.h (TT_ExecContextRec): Updated. + +2003-11-22 Werner Lemberg + + * docs/VERSION.DLL, docs/CHANGES: Updated. + + * src/base/ftobjs.c (FT_Set_Char_Size): Make metrics->x_scale and + metrics->y_scale really precise. + + (FT_Load_Glyph): Update computation of linearHoriAdvance and + linearVertAdvance. + + * src/truetype/ttinterp.c (Update_Max): Use FT_REALLOC. + +2003-11-22 David Turner + + * src/autofit/*: More updates. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 8. + * builds/unix/configure.ac (version_info): Set to 9:6:3. + * README: Updated. + +2003-11-13 John A. Boyd Jr. + + * src/bdf/bdfdrivr.c (bdf_interpret_style), src/pcf/pcfread.c + (pcf_interpret_style): Replace spaces with dashes in properties + SETWIDTH_NAME and ADD_STYLE_NAME to simplify parsing. + +2003-11-11 Werner Lemberg + + * docs/CHANGES: Updated. + +2003-11-11 John A. Boyd Jr. + + Handle SETWIDTH_NAME and ADD_STYLE_NAME properties for BDF and PCF + fonts. + + * src/bdf/bdfdrivr.c (bdf_interpret_style): New auxiliary function. + (BDF_Face_Init): Don't handle style properties but call + bdf_interpret_style. + + * src/pcf/pcfread.c (pcf_interpret_style): New auxiliary function. + (pcf_load_font): Don't handle style properties but call + pcf_interpret_style. + +2003-11-07 Werner Lemberg + + + * Version 2.1.7 released. + ========================= + + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 7. + + * builds/unix/ft2unix.h: Fix comments. + + * builds/unix/ftconfig.in: Synchronized with ANSI version. + Use `#undef' in templates as recommended in the autoconf + documentation. + Since real `#undef' lines don't survive during configuration, use + `/undef' instead; the postprocessing facility of the + AC_CONFIG_HEADERS autoconf macro converts them to `#undef'. + + * builds/unix/install.mk (install): Install Unix version of + `ftconfig.h'. + + * builds/unix/unix-cc.in (CFLAGS): Set FT_CONFIG_CONFIG_H macro + to include the correct `ftconfig.h' file. + + * builds/unix/ft-munmap.m4 (FT_MUNMAP_DECL): Removed. + (FT_MUNMAP_PARAM): Updated syntax to autoconf 2.59. + + * builds/unix/freetype2.m4: Updated syntax to autoconf 2.59. + + * builds/unix/configure.ac: Use AC_CONFIG_HEADERS instead of + AC_CONFIG_HEADER to create ftconfig.h, and use second argument + to replace `/undef' with `#undef'. + Don't use FT_MUNMAP_DECL but AC_CHECK_DECLS to check for munmap. + Use AS_HELP_STRING in AC_ARG_WITH. + Update syntax to autoconf 2.59. + + * builds/unix/ltmain.sh: Regenerated with `libtoolize --force + --copy' from libtool 1.5. + * builds/unix/aclocal.m4: Regenerated with `aclocal -I .' from + automake 1.7.8. + * builds/unix/configure: Regenerated with autoconf 2.59. + * builds/unix/config.guess, builds/unix/config.sub: Updated from + `config' CVS module at subversions.gnu.org + * builds/unix/install-sh, builds/unix/mkinstalldirs: Updated from + `texinfo' CVS module at subversions.gnu.org. + + * builds/vms/ftconfig.h: Synchronized with ANSI version. + + * docs/CUSTOMIZE: Fix documentation error. + * docs/CHANGES, docs/VERSION.DLL, docs/release: Updated. + + * builds/freetype.mk (refdoc): Updated --title. + +2003-11-07 David Turner + + + * Version 2.1.6 released. + ========================= + + + * install: Removed. Obsolete. + +2003-11-04 Werner Lemberg + + * src/sfnt/sfdriver.c: Include FT_SERVICE_SFNT_H. + (sfnt_service_sfnt_table): New service. + (sfnt_services): Updated. + + * docs/license.txt: Reworded. + +2003-11-03 Werner Lemberg + + * include/freetype/*: Add a guard to all public header files which + load FT_FREETYPE_H to reject freetype.h from FreeType 1. + +2003-11-02 Patrick Welche + + * builds/unix/freetype2.m4, builds/unix/ft-munmap.m4: Protect + first argument of AC_DEFUN with brackets to avoid possible + expansion. + +2003-11-02 Werner Lemberg + + * include/freetype/cache/ftcglyph.h: Don't include stddef.h. + + * include/freetype/freetype.h: Fix check for ft2build.h. + +2003-11-01 Werner Lemberg + + * include/freetype/freetype.h: Check that ft2build.h has been + loaded first. + + * src/base/fttype1.c (FT_Get_PS_Font_Info): Fix incorrectly applied + patch. + +2003-10-31 Detlef Würkner + + * src/base/fttype1.c (FT_Get_PS_Font_Info, FT_Has_PS_Glyph_Names): + Fix parameter order in calls to FT_FACE_FIND_SERVICE. + +2003-10-31 Werner Lemberg + + * include/freetype/internal/ftserv.h + (FT_SERVICE_POSTSCRIPT_NAMES_H): Removed. Unused. + + * src/type42/t42drivr.c (t42_services): Updated. + +2003-10-29 David Turner + + * include/freetype/internal/bdftypes.h: Removed. Obsolete. + * src/base/ftbdf.c: Updated. + + * include/freetype/internal/cfftypes.h: Moved to... + * src/cff/cfftypes.h: This place since no other module needs to + know about those types. + + * include/freetype/internal/t42types.h: Moved to... + * src/type42/t42types.h: This place since no other module needs to + know about those types. + + * include/freetype/internal/services/svbdf.h: Include FT_BDF_H. + + * include/freetype/internal/services/svpsname.h: Renamed to... + * include/freetype/internal/services/svpscmap.h: This. + Updated `FT_Service_PsNames' -> `FT_Service_PsCMaps' and + `POSTSCRIPT_NAMES' -> `POSTSCRIPT_CMAPS' everywhere. + + * include/freetype/internal/services/svpsinfo.h: New file, providing + PostScript info service. + + * include/freetype/internal/ftserv.h (FT_SERVICE_POSTSCRIPT_CMAPS_H, + FT_SERVICE_POSTSCRIPT_INFO_H): New macros for svpscmap.h and + svpsinfo.h. + * include/freetype/internal/internal.h (FT_INTERNAL_TYPE42_TYPES_H, + FT_INTERNAL_CFF_TYPES_H, FT_INTERNAL_BDF_TYPES_H): Removed. + + * src/base/fttype1.c: Don't include FT_INTERNAL_TYPE1_TYPES_H and + FT_INTERNAL_TYPE42_TYPES_H but FT_INTERNAL_SERVICE_H and + FT_SERVICE_POSTSCRIPT_INFO_H. + (FT_Get_PS_Font_Info, FT_Has_PS_Glyph_Names): Use new + POSTSCRIPT_INFO service. + + * src/cff/cffdrivr.c: Include FT_SERVICE_POSTSCRIPT_INFO_H. + (cff_ps_has_glyph_names): New function. + (cff_service_ps_info): New service. + (cff_services): Updated. + + * src/cff/cffload.h, src/cff/cffobjs.h, src/cff/cffparse.h: Don't + include FT_INTERNAL_CFF_TYPES_H but cfftypes.h directly. + + * src/cif/cidriver.c: Include FT_SERVICE_POSTSCRIPT_INFO_H. + (cid_ps_get_font_info): New function. + (cid_service_ps_info): New service. + (cid_services): Updated. + + * src/type1/t1driver.c: Include FT_SERVICE_POSTSCRIPT_INFO_H. + (t1_ps_get_font_info, t1_ps_has_glyph_names): New functions. + (t1_service_ps_info): New service. + (t1_services): Updated. + + * src/type42/t42drivr.c: Include FT_SERVICE_POSTSCRIPT_INFO_H. + (t42_ps_get_font_info, t42_ps_has_glyph_names): New functions. + (t42_service_ps_info): New service. + + * src/type42/t42objs.h: Don't include FT_INTERNAL_TYPE42_TYPES_H + but t42types.h directly. + + * src/psnames/psmodule.c (psnames_interface, psnames_services): + Renamed to... + (pscmaps_interface, pscmaps_services): This. + Updated all users. + + + * src/gzip/infblock.c (inflate_blocks): Remove compiler warning. + +2003-10-22 Werner Lemberg + + * src/type1/t1load.c (parse_encoding): Handle `/Encoding [ ... ]'. + + * src/type1/t1parse.c (T1_Get_Private_Dict): Test whether `eexec' + is real. + + * src/type42/t42parse.c (t42_parse_encoding): Improve boundary + checking while parsing. + + * docs/CHANGES: Updated. + +2003-10-21 Josselin Mouette + + * include/freetype/internal/t1types.h (T1_FontRec): `paint_type' + and `stroke_width' aren't pointers. + + * src/type42/t42objs.c (T42_Face_Done), src/type1/t1objs.c + (T1_Face_Done): Don't free `paint_type' and `stroke_width'. + +2003-10-20 Graham Asher + + * src/winfonts/winfnt.c (fnt_cmap_class): Fix position of `const'. + +2003-10-19 Werner Lemberg + + * src/autohint/ahhint.c (ah_hinter_load_glyph): Patch from + 2003-08-18 introduced a severe bug (FT_Render_Glyph was called + twice under some circumstances, causing strange results). This + is fixed now by clearing the FT_LOAD_RENDER bit of `load_flags'. + + * src/base/ftpfr.c (FT_Get_PFR_Metrics): Initialize `error'. + * src/psaux/psobjs.c (ps_tobytes): Initialize `n'. + * src/type42/t42parse.c (t42_parse_sfnts): Initialize `string_size'. + +2003-10-16 Werner Lemberg + + Completely revised Type 42 parser. It now handles both fonts + produced with ttftot42 (tested version 0.3.1) and + TrueTypeToType42.ps (tested version May 2001; it is necessary to + fix the broken header comment to be `%!PS-TrueTypeFont...'). + + * src/type42/t42objs.c (T42_GlyphSlot_Load): Change fourth + parameter to `FT_UInt'. + * src/type42/t42objs.h: Updated. + + * src/type42/t42parse.h (T42_ParserRec): Change type of `in_memory' + to FT_Bool. + (T42_Loader): Change type of `num_chars' and `num_glyphs' to + FT_UInt. + Add `swap_table' element. + * src/type42/t42parse.c (T42_KEYWORD_COUNT, T1_ToFixed, + T1_ToCoordArray, T1_ToTokenArray): Removed. + (T1_ToBytes): New macro. + (t42_is_alpha, t42_hexval): Removed. + (t42_is_space): Handle `\0'. + (t42_parse_encoding): Updated to use new PostScript parser routines + from psaux. + Handle `/Encoding [ ... ]' also. + (T42_Load_Status): New enumeration. + (t42_parse_sfnts): Updated to use new PostScript parser routines + from psaux. + (t42_parse_charstrings): Updated to use new PostScript parser + routines from psaux. + Handle `/CharStrings << ... >>' also. + Don't expect that /.notdef is the first element in dictionary. Copy + code from type1 module to handle this. + (t42_parse_dict): Updated to use new PostScript parser routines + from psaux. + Remove code for synthetic fonts (which can't occur in Type 42 + fonts). + (t42_loader_done): Release `swap_table'. + + * src/psaux/psobjs.c (skip_string): Increase `cur' properly. + + * src/type1/t1load.c (parse_charstrings): Make test for `.notdef' + faster. + +2003-10-15 Graham Asher + + * src/autohint/ahglobal.c (blue_chars), src/winfonts/winfnt.c + (fnt_cmap_class_rec, fnt_cmap_class), src/bdf/bdflib.c (empty, + _num_bdf_properties), src/gzip/infutil.c (inflate_mask), + src/gzip/inffixed.h (fixed_bl, fixed_bd, fixed_tl, fixed_td), + src/gzip/inftrees.h (inflate_trees_fixed), srf/gzip/inftrees.c + (inflate_trees_fixed): Decorate with more `const' to avoid + writable global variables which are disallowed on ARM. + +2003-10-08 Werner Lemberg + + * src/type1/t1load.c (parse_font_matrix, parse_charstrings): Remove + code specially for synthetic fonts; this is handled elsewhere. + (parse_encoding): Remove code specially for synthetic fonts; this is + handled elsewhere. + Improve boundary checking while parsing. + (parse_dict): Improve boundary checking while parsing. + Use ft_memcmp to simplify code. + +2003-10-07 Werner Lemberg + + * src/type1/t1load.c (parse_subrs, parse_dict): Handle synthetic + fonts properly. + (parse_charstrings): Copy correct number of characters into + `name_table'. + +2003-10-06 Werner Lemberg + + Heavy modification of the PS parser to handle comments and strings + correctly. This doesn't slow down the loading of PS fonts + significantly since charstrings aren't affected. + + * include/freetype/config/ftstdlib.h (ft_xdigit): Renamed to... + (ft_isxdigit): This. Updated all callers. + (ft_isdigit): New alias to `isdigit'. + + * include/freetype/internal/psaux.h (PS_Parser_FuncsRec): Renamed + `skip_alpha' to `skip_PS_token'. + Add parameter to `to_bytes' and change some argument types. + + * src/psaux/psauxmod.c (ps_parser_funcs): Updated. + * src/psaux/psobjs.c (ft_char_table): New array to map character + codes (ASCII and EBCDIC) of digits to numbers. + (OP): New auxiliary macro holding either `>=' or `<' depending on + the character encoding. + (skip_comment): New function. + (skip_spaces): Use it. + (skip_alpha): Removed. + (skip_literal_string, skip_string): New functions. + (ps_parser_skip_PS_token): New function. This is a better + replacement of... + (ps_parser_skip_alpha): Removed. + (ps_parser_to_token, ps_parser_to_token_array): Updated. + (T1Radix): Rewritten, using `ft_char_table'. + (t1_toint): Renamed to... + (ps_toint): This. Update all callers. + Use `ft_char_table'. + (ps_tobytes): Add parameter to handle delimiters and change some + argument types. + Use `ft_char_table'. + (t1_tofixed): Renamed to... + (ps_tofixed): This. Update all callers. + Use `ft_char_table'. + (t1_tocoordarray): Renamed and updated to... + (ps_tocoordarray): This. Update all callers. + (t1_tofixedarray): Renamed and updated to... + (ps_tofixedarray): This. Update all callers. + (t1_tobool): Renamed to... + (ps_tobool): This. Update all callers. + (ps_parser_load_field): Updated. + (ps_parser_load_field_table): Use `T1_MAX_TABLE_ELEMENTS' + everywhere. + (ps_parser_to_int, ps_parser_to_fixed, ps_parser_to_coord_array, + ps_parser_to_fixed_array): Skip spaces. Updated. + (ps_parser_to_bytes): Add parameter to handle delimiters and change + some argument types. Updated. + * src/psaux/psobjs.h: Updated. + + * src/cid/cidload.c (cid_parse_dict): Updated. + * src/cid/cidparse.c (cid_parser_new): Check whether the `StartData' + token was really found. + * src/cid/cidparse.h (cid_parser_skip_alpha): Updated and renamed + to... + (cid_parser_skip_PS_token): This. + + * src/type1/t1parse.h (T1_ParserRec): Use `FT_Bool' for boolean + fields. + (T1_Skip_Alpha): Replaced with... + (T1_Skip_PS_Token): This new macro. + * src/type1/t1parse.c (hexa_value): Removed. + (T1_Get_Private_Dict): Use `ft_isxdigit' and + `psaux->ps_parser_funcs_to_bytes' for handling ASCII hexadecimal + encoding. + After decrypting, replace the four random bytes at the beginning + with whitespace. + * src/type1/t1load.c (t1_allocate_blend): Use proper error values. + (parser_blend_design_positions, parse_blend_design_map, + parse_weight_vector): Updated. + (is_space): Handle `\f' also. + (is_name_char): Removed. + (read_binary_data): Updated. + (parse_encoding): Use `ft_isdigit'. + Updated. + (parse_subrs): Updated. + (TABLE_EXTEND): New macro. + (parse_charstrings): Updated. + Provide a workaround for buggy fonts which have more entries in the + /CharStrings dictionary then expected; the function now adds some + slots and skips entries which still exceed the new limit. + (parse_dict): Updated. + Terminate on the token `closefile'. + + * src/type42/t42parse.c (T1_Skip_Alpha): Replaced with... + (T1_Skip_PS_Token): This new macro. Updated all callers. + (t42_parse_encoding): Use `ft_isdigit'. + + + * src/base/ftmm.c (ft_face_get_mm_service): Return FT_Err_OK if + success. + +2003-10-05 Werner Lemberg + + * include/freetype/ftmodule.h: Renamed to... + * include/freetype/ftmodapi.h: This to avoid duplicate file names. + * include/freetype/config/ftheader.h (FT_MODULE_H): Updated. + +2003-10-04 Werner Lemberg + + * src/base/ftoutln.c (FT_OrientationExtremumRec, + FT_Outline_Get_Orientation): Trivial typo fixes to make it compile. + +2003-10-02 Markus F.X.J. Oberhumer + + * src/winfonts/winfnt.c (FT_WinFNT_HeaderRec): `color_table_offset' + has four bytes, not two. + Fix all users. + (fnt_font_load, FNT_Load_Glyph): Add more font validity tests. + +2003-10-01 David Turner + + * src/autofit/*: Adding first source files of the new multi-script + `auto-fitter'. + + * include/freetype/ftoutln.h (FT_Orientation): New enumeration. + (FT_Outline_Get_Orientation): New declaration. + + * src/base/ftoutln.c (FT_OrientationExtremumRec): New structure. + (ft_orientation_extremum_compute): New auxiliary function. + (FT_Outline_Get_Orientation): New function to compute the fill + orientation of a given glyph outline. + + * include/freetype/internal/ftserv.h (FT_FACE_LOOKUP_SERVICE): Fixed + trivial bug which could crash the font engine when a cached service + pointer was retrieved. + +2003-09-30 Werner Lemberg + + * src/cid/cidload.c (cid_parse_dict): Skip token if no keyword is + found. + + * src/type1/t1parse.c (IS_T1_WHITESPACE, IS_T1_LINESPACE, + IS_T1_SPACE): Removed. + (PFB_Tag): Removed. + (read_pfb_tag): Don't use PFB_Tag. + + * src/type42/t42parse.c (t42_is_space): Handle `\f' also. + (t42_parse_encoding): Handle synthetic fonts. + +2003-09-29 Werner Lemberg + + * include/freetype/internal/t1types.h: Don't include + FT_INTERNAL_OBJECTS_H but FT_INTERNAL_SERVICE_H. + * src/truetype/ttobjs.c: Don't include + FT_SERVICE_POSTSCRIPT_NAMES_H. + +2003-09-29 David Turner + + Added new service to handle glyph name dictionaries, replacing the + old internal header named `psnames.h' by `services/svpsname.h'. + Note that this is different from `services/svpostnm.h' which only + handles the retrieval of PostScript font names for a given face. + (Should we merge these two services into a single header?) + + * include/freetype/internal/psnames.h: Removed. Most of its + contents is moved to... + * include/freetype/internal/services/svpsname.h: New file. + + * include/freetype/internal/services/svpostnm.h + (FT_SERVICE_ID_POSTSCRIPT_NAME): Replaced with... + (FT_SERVICE_ID_POSTSCRIPT_FONT_NAME): New macro. + (PsName): Service named changed to... + (PsFontName): This. + Updated `FT_Service_PsName' -> `FT_Service_PsFontName' and + `POSTSCRIPT_NAME' -> `POSTSCRIPT_FONT_NAME' everywhere. + + * include/freetype/internal/internal.h + (FT_INTERNAL_POSTSCRIPT_NAMES_H): Removed. + * include/freetype/internal/psaux.h: Include + FT_SERVICE_POSTSCRIPT_NAMES_H. + (T1_DecoderRec): Updated type of `psnames'. + * include/freetype/internal/t1types.h: Don't include + FT_INTERNAL_POSTSCRIPT_NAMES_H but FT_SERVICE_POSTSCRIPT_NAMES_H. + Include FT_INTERNAL_OBJECTS_H. + * include/freetype/internal/t42types.h: Don't include + FT_INTERNAL_POSTSCRIPT_NAMES_H. + * include/freetype/internal/tttypes.h (TT_FaceRec): Updated. + + * include/freetype/internal/ftserv.h (FT_FACE_FIND_SERVICE): Changed + order of parameters. All callers updated. + (FT_FACE_FIND_GLOBAL_SERVICE): New macro to look up a service + globally, checking all modules. + (FT_ServiceCacheRec): Updated. + (FT_SERVICE_POSTSCRIPT_NAMES_H): New macro for accessing + `svpsname.h'. + + * include/freetype/internal/ftobjs.h, src/base/ftobjs.c + (ft_module_get_service): New function. + + * src/cff/cffdrivr.c: Don't include FT_INTERNAL_POSTSCRIPT_NAMES_H + but FT_SERVICE_POSTSCRIPT_NAMES_H. + (cff_get_glyph_name, cff_get_name_index): Use new POSTSCRIPT_NAMES + service. + * src/cff/cffcmap.c (cff_cmap_unicode_init): Updated. + * src/cff/cffload.c, src/cff/cffload.h: Don't include + FT_INTERNAL_POSTSCRIPT_NAMES_H but FT_SERVICE_POSTSCRIPT_NAMES_H. + (cff_index_get_sid_string): Updated. + * src/cff/cffobjs.c: Don't include FT_INTERNAL_POSTSCRIPT_NAMES_H + but FT_SERVICE_POSTSCRIPT_NAMES_H. + (cff_face_init): Use new POSTSCRIPT_NAMES service. + * src/cff/cffobjs.h: Don't include FT_INTERNAL_POSTSCRIPT_NAMES_H + but FT_SERVICE_POSTSCRIPT_NAMES_H. + + * src/cid/cidobjs.c: Don't include FT_INTERNAL_POSTSCRIPT_NAMES_H + but FT_SERVICE_POSTSCRIPT_NAMES_H. + (cid_face_init): Use new POSTSCRIPT_NAMES service. + * src/cid/cidriver.c: Don't include FT_INTERNAL_POSTSCRIPT_NAMES_H. + + * src/psaux/t1cmap.c (t1_cmap_std_init, t1_cmap_unicode_init): Use + new POSTSCRIPT_NAMES service. + * src/psaux/t1decode.h (t1_lookup_glyph_by_stdcharcode, + t1_decode_init): Use new POSTSCRIPT_NAMES service. + * src/psaux/t1cmap.h, src/psaux/t1decode.h: Dont' include + FT_INTERNAL_POSTSCRIPT_NAMES_H. + + * src/psnames/psmodule.c: Don't include + FT_INTERNAL_POSTSCRIPT_NAMES_H but FT_SERVICE_POSTSCRIPT_NAMES_H. + (ps_build_unicode_table): Renamed to... + (ps_unicodes_init): This. + (ps_lookup_unicode): Renamed to... + (ps_unicodes_char_index): This. + (ps_next_unicode): Renamed to... + (ps_unicodes_char_next): This. + (psnames_interface): Updated. + (psnames_services): New services list. + (psnames_get_service): New function. + (psnames_module_class): Updated. + + * src/sfnt/sfobjs.c: Don't include FT_INTERNAL_POSTSCRIPT_NAMES_H + but FT_SERVICE_POSTSCRIPT_NAMES_H. + (sfnt_init_face): Use new POSTSCRIPT_NAMES service. + * src/sfnt/ttpost.c: Don't include FT_INTERNAL_POSTSCRIPT_NAMES_H + but FT_SERVICE_POSTSCRIPT_NAMES_H. + (tt_face_get_ps_name): Updated. + + * src/truetype/ttobjs.c: Don't include + FT_INTERNAL_POSTSCRIPT_NAMES_H but FT_SERVICE_POSTSCRIPT_NAMES_H. + + * src/type1/t1driver.c: Don't include + FT_INTERNAL_POSTSCRIPT_NAMES_H but FT_SERVICE_POSTSCRIPT_NAMES_H. + * src/type1/t1objs.c: Don't include + FT_INTERNAL_POSTSCRIPT_NAMES_H but FT_SERVICE_POSTSCRIPT_NAMES_H. + (T1_Face_Init): Use new POSTSCRIPT_NAMES service. + + * src/type42/t42drivr.c (t42_get_ps_name): Renamed to... + (t42_get_ps_font_name): This. + (t42_service_ps_name): Renamed to... + (t42_service_ps_font_name): This. + (t42_services): Updated. + * src/type42/t42objs.c (T42_Face_Init): Use new POSTSCRIPT_NAMES + service. + * src/type42/t42objs.h: Don't include + FT_INTERNAL_POSTSCRIPT_NAMES_H but FT_SERVICE_POSTSCRIPT_NAMES_H. + + + * src/base/ftglyph.c (FT_Get_Glyph): Don't access `slot' before + testing its validity. Reported by Henry Maddocks + . + +2003-09-21 Werner Lemberg + + * include/freetype/internal/ftserv.h (FT_FACE_FIND_SERVICE): + Fix compilation warning (s/pptr/Pptr/). + + * include/freetype/internal/internal.h (FT_INTERNAL_PFR_H, + FT_INTERNAL_FNT_TYPES_H): Removed. + +2003-09-21 David Turner + + Migrating the PFR and WINFNT drivers to the new service-based + internal API. + + * include/freetype/internal/fnttypes.h: Removed. Most of its data + are moved to winfnt.h and... + * include/freetype/internal/services/svwinfnt.h: New file. + + * include/freetype/internal/pfr.h: Removed. Most of its data are + moved to... + * include/freetype/internal/services/svpfr.h: New file. + + * include/freetype/internal/ftserv.h (FT_FACE_FIND_SERVICE, + FT_FACE_LOOKUP_SERVICE): Simplify fix of 2003-09-16 by removing + pointer type argument. + Updated all callers. + Update macro names of services header files. + + * src/base/ftobjs.c (FT_Get_Name_Index): Simplified code. + + * src/base/ftpfr.c: Include FT_SERVICE_PFR_H instead of + FT_INTERNAL_PFR_H. + (ft_pfr_check, FT_Get_PFR_Metrics, FT_Get_PFR_Kerning, + FT_Get_PFR_Advance): Use services provided in `PFR_METRICS'. + + * src/base/ftwinfnt.c: Include FT_SERVICE_WINFNT_H instead of + FT_INTERNAL_FNT_TYPES_H. + (FT_Get_WinFNT_Header): Use service provided in `WINFNT'. + + * src/pfr/pfrdrivr.c: Include FT_SERVICE_PFR_H and + FT_SERVICE_XFREE86_NAME_H instead of FT_INTERNAL_PFR_H. + (pfr_service_bdf): Updated. + (pfr_services): New services list. + (pfr_get_service): New function. + (pfr_driver_class): Updated. + + * src/winfonts/winfnt.c: Include FT_SERVICE_WINFNT_H and + FT_SERVICE_XFREE86_NAME_H instead of FT_INTERNAL_FNT_TYPES_H. + (winfnt_get_header, winfnt_get_service): New functions. + (winfnt_service_rec): New structure providing WINFNT services. + (winfnt_services): New services list. + (winfnt_driver_class): Updated. + * src/winfonts/winfnt.h: Add most of the removed fnttypes.h data. + + * src/sfnt/sfdriver.c (sfnt_service_ps_name): Fix typo. + + * src/type1/t1driver.c (t1_service_ps_name): Fix typo. + + * src/cff/cffobjs.c, src/cid/cidobjs.c, src/pfr/pfrsbit.c, + src/psaux/psobjs.c, src/sfnt/sfobjs.c, src/truetype/ttobjs.c, + src/type1/t1objs.c, src/type42/t42objs.c: Removing various compiler + warnings. + +2003-09-19 David Bevan + + * src/type1/t1parse.c (pfb_tag_fields): Removed. + (read_pfb_tag): Fix code so that it doesn't fail on end-of-file + indicator (0x8003). + * docs/CHANGES: Updated. + +2003-09-16 Werner Lemberg + + * include/freetype/internal/ftserv.h (FT_FACE_FIND_SERVICE, + FT_FACE_LOOKUP_SERVICE): Add parameter to pass pointer type. + Ugly, I know, but this is needed for compilation with C++ -- + maybe someone knows a better solution? + Updated all callers. + + * src/base/ftobjs.c (FT_Get_Name_Index, FT_Get_Glyph_Name): Remove + C++ compiler warnings. + + * src/base/ftbdf.c (FT_Get_BDF_Charset_ID, FT_Get_BDF_Property): + Fix order of arguments passed to FT_FACE_FIND_SERVICE. + +2003-09-15 Werner Lemberg + + Avoid header files with identical names. + + * include/freetype/internal/services/bdf.h: Renamed to... + * include/freetype/internal/services/svbdf.h: This. + Add copyright notice. + * include/freetype/internal/services/glyfdict.h: Renamed to... + * include/freetype/internal/services/svgldict.h: This. + Add copyright notice. + * include/freetype/internal/services/multmast.h: Renamed to... + * include/freetype/internal/services/svmm.h: This. + Add copyright notice. + Add FT_BEGIN_HEADER and FT_END_HEADER. + * include/freetype/internal/services/sfnt.h: Renamed to... + * include/freetype/internal/services/svsfnt.h: This. + Add copyright notice. + * include/freetype/internal/services/postname.h: Renamed to... + * include/freetype/internal/services/svpostnm.h: This. + Add copyright notice. + * include/freetype/internal/services/xf86name.h: Renamed to... + * include/freetype/internal/services/svxf86nm.h: This. + Add copyright notice. + + * include/freetype/internal/ftserv.h: Add FT_BEGIN_HEADER and + FT_END_HEADER. + Add copyright notice. + Update macro names of services header files. + + * builds/freetype.mk (SERVICES_DIR): New variable. + (BASE_H): Add services header files. + +2003-09-11 Werner Lemberg + + * builds/toplevel.mk (distclean): Remove `builds/unix/freetype2.pc'. + + * src/cff/cffdrivr.c: Don't load headers twice. + + * include/freetype/internal/ftserv.h (FT_SERVICE_SFNT_H): New macro. + * src/base/ftobjs.c: Include FT_SERVICE_SFNT_H. + + * src/cff/cffcmap.c: Include `cfferrs.h'. + * src/pfr/pfrdrivr.c: Include `pfrerror.h'. + * src/sfnt/sfdriver.c: Include `sferrors.h'. + * src/psaux/psobjs.h: Add declaration for `ps_parser_to_bytes'. + +2003-09-11 David Turner + + Introducing the concept of `module services'. This is the first + step towards a massive simplification of the engine's internals, in + order to get rid of various numbers of hacks. + + Note that these changes will break source & binary compatibility for + authors of external font drivers. + + * include/freetype/config/ftconfig.h (FT_BEGIN_STMNT, FT_END_STMNT, + FT_DUMMY_STMNT): New macros. + + * include/freetype/internal/ftserv.h: New file, containing the new + structures and macros to provide `services'. + + * include/freetype/internal/internal.h (FT_INTERNAL_EXTENSION_H, + FT_INTERNAL_EXTEND_H, FT_INTERNAL_HASH_H, FT_INTERNAL_OBJECT_H): + Removed, obsolete. + (FT_INTERNAL_SERVICE_H): New macro for `ftserv.h'. + + * include/freetype/internal/services/bdf.h, + include/freetype/internal/services/glyfdict.h, + include/freetype/internal/services/postname.h, + include/freetype/internal/services/xf86name.h: New files. + + * include/freetype/ftmm.h (FT_Get_MM_Func, FT_Set_MM_Design_Func, + FT_Set_MM_Blend_Func): Function pointers moved (in modified form) + to... + * include/freetype/internal/services/multmast.h: New file. + + * include/freetype/internal/sfnt.h (SFNT_Interface): `get_interface' + is now of type `FT_Module_Requester'. + (SFNT_Get_Interface_Func, SFNT_Load_Table_Func): Function pointers + moved (in modified form) to... + * include/freetype/internal/services/sfnt.h: New file. + + * include/freetype/tttables.h (FT_Get_Sfnt_Table_Func): Function + pointer moved (in modified form) to `services/sfnt.h'. + + * include/freetype/ftmodule.h (FT_Module_Interface): Make it a + a typedef to `FT_Pointer'. + + * include/freetype/internal/tttypes.h (TT_FaceRec): Add + `postscript_name'. + * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Remove + `postscript_name'. + Add `services' element. + (FT_LibraryRec): Remove `meta_class'. + + * src/base/ftbdf.c: Include FT_SERVICE_BDF_H. + (test_font_type): Removed. + (FT_Get_BDF_Charset_ID, FT_Get_BDF_Property): Use services + provided in `FT_SERVICE_ID_BDF'. + + * src/base/ftmm.c: Include FT_SERVICE_MULTIPLE_MASTERS_H. + (ft_face_get_mm_service): New auxiliary function to get services + from `FT_SERVICE_ID_MULTI_MASTERS'. + (FT_Get_Multi_Master, FT_Set_MM_Design_Coordinates, + FT_Set_MM_Blend_Coordinates): Use `ft_face_get_mm_service'. + + * src/base/ftobjs.c: Include FT_SERVICE_POSTSCRIPT_NAME_H and + FT_SERVICE_GLYPH_DICT_H. + (ft_service_list_lookup): New function to get a specific service. + (destroy_face): Updated. + (Mac_Read_POST_Resource): Simplify some code. + (IsMacResource): Fix warnings. + (FT_Get_Name_Index, FT_Get_Glyph_Name): Use services provided in + `FT_SERVICE_ID_GLYPH_DICT'. + (FT_Get_Postscript_Name): Use service provided in + `FT_SERVICE_ID_POSTSCRIPT_NAME'. + (FT_Get_Sfnt_Table, FT_Load_Sfnt_Table): Use services provided in + `FT_SERVICE_ID_SFNT_TABLE'. + + * src/base/ftxf86.c: Include FT_SERVICE_XFREE86_NAME_H. + (FT_Get_X11_Font_Format): Use service provided in + `FT_SERVICE_ID_XF86_NAME'. + + * src/bdf/bdfdrivr.c: Include FT_SERVICE_BDF_H and + FT_SERVICE_XFREE86_NAME_H. + (bdf_get_charset_id): New function. + (bdf_service_bdf): New structure providing BDF services. + (bdf_services): New services list. + (bdf_driver_requester): Use `ft_service_list_lookup'. + + * src/cff/cffdrivr.c: Include FT_SERVICE_XFREE86_NAME_H and + FT_SERVICE_GLYPH_DICT_H. + (cff_service_glyph_dict): New structure providing CFF services. + (cff_services): New services list. + (cff_get_interface): Use `ft_service_list_lookup'. + + * src/cid/cidriver.c: Include FT_SERVICE_POSTSCRIPT_NAME_H and + FT_SERVICE_XFREE86_NAME_H. + (cid_service_ps_name): New structure providing CID services. + (cid_services): New services list. + (cid_get_interface): Use `ft_service_list_lookup'. + + * src/pcf/pcfdrivr.c: Include FT_SERVICE_BDF_H and + FT_SERVICE_XFREE86_NAME_H. + (pcf_service_bdf): New structure providing PCF services. + (pcf_services): New services list. + (pcf_driver_requester): Use `ft_service_list_lookup'. + + * src/sfnt/sfdriver.c: Include FT_SERVICE_GLYPH_DICT_H and + FT_SERVICE_POSTSCRIPT_NAME_H. + (get_sfnt_glyph_name): Renamed to... + (sfnt_get_glyph_name): This. + (get_sfnt_postscript_name): Renamed to... + (sfnt_get_ps_name): This. + Updated. + (sfnt_service_glyph_dict, sfnt_service_ps_name): New structures + providing services. + (sfnt_services): New services list. + (sfnt_get_interface): Use `ft_service_list_lookup'. + + * src/truetype/ttdriver.c: Include FT_SERVICE_XFREE86_NAME_H. + (tt_services): New services list. + (tt_get_interface): Use `ft_service_list_lookup'. + + * src/type1/t1driver.c: Include FT_SERVICE_MULTIPLE_MASTERS_H, + FT_SERVICE_GLYPH_DICT_H, FT_SERVICE_XFREE86_NAME_H, and + FT_SERVICE_POSTSCRIPT_NAME_H. + (t1_service_glyph_dict, t1_service_ps_name, + t1_service_multi_masters): New structures providing Type 1 services. + (t1_services): New services list. + (Get_Interface): Use `ft_service_list_lookup'. + + * src/type42/t42drivr.c: Include FT_SERVICE_XFREE86_NAME_H, + FT_SERVICE_GLYPH_DICT_H, and FT_SERVICE_POSTSCRIPT_NAME_H. + (t42_service_glyph_dict, t42_service_ps_name): New strucures + providing Type 42 services. + (t42_services): New services list. + (T42_Get_Interface): Use `ft_service_list_lookup'. + + + * README, docs/CHANGES: Updating version numbers for 2.1.6, and + removing obsolete warnings in the documentation. + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 6. + * builds/unix/configure.ac (version_info): Set to 9:5:3. + * builds/unix/configure: Regenerated. + + * include/freetype/internal/ftcore.h, + include/freetype/internal/ftexcept.h, + include/freetype/internal/fthash.h, + include/freetype/internal/ftobject.h: Removed. Obsolete. + +2003-09-09 David Turner + + Fixing PFR kerning support. The tables within the font file contain + (charcode,charcode) kerning pairs, we need to convert them to + (gindex,gindex). + + * src/base/ftpfr.c (ft_pfr_check): Fix serious typo. + * src/pfr/prfload.c: Remove dead code. + (pfr_get_gindex, pfr_compare_kern_pairs, pfr_sort_kerning_pairs): + New functions. + (pfr_phy_font_done): Free `kern_pairs'. + (pfr_phy_font_load): Call `pfr_sort_kerning_pairs'. + * src/pfr/pfrobjs.c (pfr_face_get_kerning): Fix kerning extraction. + * src/pfr/pfrtypes.h (PFR_KERN_PAIR_INDEX): New macro. + (PFR_KernPairRec): Make `kerning' an FT_Int. + (PFR_PhyFontRec): New element `kern_pairs'. + (PFR_KernFlags): Values of PFR_KERN_2BYTE_CHAR and + PFR_KERN_2BYTE_ADJ were erroneously reversed. + + * include/freetype/ftoption.h: Commenting out the macro + TT_CONFIG_OPTION_BYTECODE_INTERPRETER. + +2003-09-02 David Turner + + + * Version 2.1.5 released. + ========================= + + +2003-08-31 Manish Singh + + * src/bdf/bdflib.c (_bdf_readstream): Don't use FT_MEM_COPY but + FT_MEM_MOVE. + +2003-08-30 Werner Lemberg + + * include/freetype/freetype.h (FT_ENCODING_SJIS, FT_ENCODING_GB2312, + FT_ENCODING_BIG5, FT_ENCODING_WANSUNG, FT_ENCODING_JOHAB): New + enumerations of FT_Encoding. The FT_ENCODING_MS_* variants except + FT_ENCODING_MS_SYMBOL are now deprecated. + Updated all users. + * docs/CHANGES: Document it. + +2003-08-27 Werner Lemberg + + * src/bdf/bdfdrivr.c (BDF_Face_Init): Accept lowercase characters + for spacing. + +2003-08-27 Mike FABIAN + + * src/pcf/pcfread.c (pcf_load_font), src/bdf/bdfdrivr.c + (BDF_Face_Init): Accept lowercase characters for slant and weight. + +2003-08-18 David Turner + + * include/freetype/config/ftoption.h: Disabling TrueType bytecode + interpreter until the UNPATENTED_HINTING works as advertised. + + * src/autohint/ahhint.c (ah_hinter_load_glyph): Use `|' for + setting `load_flags'. + + * Jamfile: Adding the `refdoc' target to the Jamfile in order to + build the API Reference in `docs/reference' automatically. + + * include/freetype/t1tables.h (PS_FontInfoRec), src/cid/cidtoken.h, + src/type1/t1tokens.h, src/type42/t42parse.c: Resetting the types of + `italic_angle', `underline_position', and `underline_thickness' to + their previous values (i.e., long, short, and ushort) in order to + avoid breaking binary compatibility. + + * include/freetype/ttunpat.h: Fixing documentation comment. + + * include/freetype/config/ftoption.h, devel/ftoption.h + (TT_CONFIG_OPTION_OPTION_COMPILE_UNPATENTED_HINTING): Replaced + with... + (TT_CONFIG_OPTION_UNPATENTED_HINTING): This. Updated all users. + (TT_CONFIG_OPTION_FORCE_UNPATENTED_HINTING): Removed. + + * include/freetype/internal/ftobjs.h (FT_DEBUG_HOOK_TYPE1): Removed. + (FT_DEBUG_HOOK_UNPATENTED_HINTING): New macro. Use this with + `FT_Set_Debug_Hook' to get the same effect as the removed + TT_CONFIG_OPTION_FORCE_UNPATENTED_HINTING. + + * src/truetype/ttobjs.c (tt_face_init): Use + `FT_DEBUG_HOOK_UNPATENTED_HINTING'. + +2003-08-06 Werner Lemberg + + * src/type1/t1gload.c (T1_Load_Glyph), src/cff/cffgload.c + (cff_slot_load), src/cid/cidgload.c (cid_slot_load_glyph): Fix + previous change. + +2003-08-05 Werner Lemberg + + * src/type1/t1gload.c (T1_Load_Glyph), src/cff/cffgload.c + (cff_slot_load), src/cid/cidgload.c (cid_slot_load_glyph): Apply + font matrix to advance width also. + * docs/CHANGES: Updated. + +2003-07-26 Werner Lemberg + + * builds/unix/configure.ac (version_info): Set to 9:4:3. + * builds/unix/configure: Updated. + * docs/CHANGES, docs/VERSION.DLL: Updated. + + * include/freetype/freetype.h (FT_GlyphSlot): Change 2003-06-16 + also breaks binary compatibility. Reintroduce an unsigned integer + at the old position of `flags' called `reserved'. + +2003-07-25 Werner Lemberg + + Make API reference valid HTML 4.01 transitional. + + * src/tools/docmaker/tohtml.py (html_header_1): Add doctype + and charset. + (html_header_2): Fix style elements and add some more. + Fix syntax. + (block_header, block_footer, description_header, description_footer, + marker_header, marker_footer, source_header, source_footer, + chapter_header): Don't use
...
but `align=center' + table attribute. + (chapter_inter, chapter_footer): Add
  • and use special
      + class. + Use double quotes around table widths given in percent. + (keyword_prefix, keyword_suffix): Don't change font colour directly + but use a new class. + (section_synopsis_header, section_synopsis_footer): Don't change + colour. + (code_header, code_footer): Don't change font colour directly but + use a special
       class.
      +	(print_html_field):  gets the `valign' attribute, not .
      +	(print_html_field_list): Ditto.
      +	(index_exit): Don't use 
      ...
      but `align=center' + table attribute. + (section_enter): Ditto. + (toc_exit): Don't emit
      . + (block_enter): Use

      , not

      . + (__init__): Fix tag order in self.html_footer. + +2003-07-25 David Turner + + This change reimplements fix from 2003-05-30 without breaking + binary compatibility. + + * include/freetype/t1tables.h (PS_FontInfoRec): `italic_angle', + `is_fixed_pitch', `underline_position', `underline_thickness' are + reverted to be normal values. + + * include/freetype/internal/psaux.h (T1_FieldType): Remove + `T1_FIELD_TYPE_BOOL_P', `T1_FIELD_TYPE_INTEGER_P', + `T1_FIELD_TYPE_FIXED_P', `T1_FIELD_TYPE_FIXED_1000_P'. + (T1_FIELD_TYPE_BOOL_P, T1_FIELD_NUM_P, T1_FIELD_FIXED_P, + T1_FIELD_FIXED_1000_P): Removed. + (T1_FIELD_TYPE_BOOL): Renamed to... + (T1_FIELD_BOOL): New macro. Updated all callers. + + * src/type42/t42parse.c: `italic_angle', `is_fixed_pitch', + `underline_position', `underline_thickness', `paint_type', + `stroke_width' are reverted to be normal values. + (T42_KEYWORD_COUNT): New macro. + (t42_parse_dict): New array `keyword_flags' to mark that a value has + already been assigned to a dictionary entry. + * src/type42/t42objs.c (T42_Face_Init, T42_Face_Done): Updated. + + * src/cid/cidtoken.h: `italic_angle', `is_fixed_pitch', + `underline_position', `underline_thickness' are reverted to be + normal values. + * src/cid/cidobjs.c (cid_face_done, cid_face_init): Updated. + + * src/psaux/psobjs.c (ps_parser_load_field): Updated. + + * src/type1/t1tokens.h: `italic_angle', `is_fixed_pitch', + `underline_position', `underline_thickness', `paint_type', + `stroke_width' are reverted to be normal values. + * src/type1/t1objs.c (T1_Face_Done, T1_Face_Init): Updated. + * src/type1/t1load.c (T1_FIELD_COUNT): New macro. + (parse_dict): Add parameter for keyword flags. + Record only first instance of a field. + (T1_Open_Face): New array `keyword_flags'. + +2003-07-24 Werner Lemberg + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 5. + * builds/unix/configure.ac (version_info): Set to 10:0:3. + * builds/unix/configure: Updated. + * builds/freetype.mk (refdoc): Fix --title. + + * docs/CHANGES, docs/VERSION.DLL, README: Updated. + + * src/tools/docmaker/sources.py (re_crossref): Fix regular + expression to handle trailing punctuation characters. + * src/tools/docmaker/tohtml.py (make_html_word): Updated. + + * docs/release: New file. + +2003-07-23 YAMANO-UCHI Hidetoshi + + * include/freetype/internal/psaux.h (PS_Parser_FuncsRec): New + member function `to_bytes'. + + * src/psaux/psauxmod.c (ps_parser_funcs): New member + `ps_parser_to_bytes'. + (psaux_module_class): Increase version to 0x20000L. + + * src/psaux/psobjs.c (IS_T1_LINESPACE): Add \f. + (IS_T1_NULLSPACE): New macro. + (IS_T1_SPACE): Add it. + (skip_spaces, skip_alpha): New functions. + (ps_parser_skip_spaces, ps_parser_skip_alpha): Use them. + (ps_tobytes, ps_parser_to_bytes): New functions. + +2003-07-07 Werner Lemberg + + * builds/freetype.mk (DOC_DIR): New variable. + (refdoc): Use *_DIR variables. + (distclean): Remove documentation files. + + * builds/detect.mk (std_setup, dos_setup): Mention `make refdoc'. + + * configure: Set DOC_DIR variable. + +2003-07-07 Patrik Hägglund + + * builds/freetype.mk (refdoc): New target to build the + documentation. + (.PHONY): Updated. + + * include/freetype/freetype.h: Improve documentation of FT_CharMap. + * include/freetype/ftimage,h: Fix documentation of FT_OUTLINE_FLAGS. + * include/freetype/tttables.h: Document FT_Sfnt_Tag. + +2003-07-06 Werner Lemberg + + * src/bdf/bdfdrivr.c (BDF_Face_Init), src/pcf/pcfread.c + (pcf_load_font): Fix computation of height if PIXEL_SIZE property is + missing. + +2003-07-01 Werner Lemberg + + * src/cache/ftcsbits.c (ftc_sbit_node_compare): Only add `size' if + there is no error. Reported by Knut St. Osmundsen + . + +2003-06-30 Werner Lemberg + + A new try to synchronize bitmap font access. + + * include/freetype/freetype.h (FT_Bitmap_Size): `height' is now + defined to return the baseline-to-baseline distance. This was + already the value returned by the BDF and PCF drivers. + + The `width' field now gives the average width. I wasn't able to + find something better. It should be taken as informative only. + + New fields `size', `x_ppem', and `y_ppem'. + + * src/pcf/pcfread.c (pcf_load_font): Updated to properly fill + FT_Bitmap_Size. + Do proper rounding and conversion from 72.27 to 72 points. + + * src/bdf/bdfdrivr.c (BDF_Face_Init): Updated to properly fill + FT_Bitmap_Size. + Do proper rounding and conversion from 72.27 to 72 points. + + * src/sfnt/sfobjs.c (sfnt_load_face): Updated to properly fill + FT_Bitmap_Size. + + * src/winfonts/winfnt.c (FNT_Face_Init): Updated to properly fill + FT_Bitmap_Size. + +2003-06-29 Werner Lemberg + + Redesigning the FNT driver to return multiple faces, not multiple + strikes. At least one font (app850.fon from WinME) contains + different FNT charmaps for its subfonts. Consequently, the previous + design of having multiple bitmap strikes in a single font face fails + since we have only one charmap per face. + + * include/freetype/internal/fnttypes.h (FNT_Size_Rec): Removed. + (FNT_FaceRec): Remove `num_fonts' field and replace `fonts' with + `font'. + + * src/base/ftwinfnt.c (FT_Get_WinFNT_Header): Updated. + + * src/winfonts/winfnt.c (fnt_font_load): Don't set pixel_width equal + to pixel_height. + (fnt_face_done_fonts): Removed. + (fnt_face_get_dll_fonts): Renamed to... + (fnt_face_get_dll_font): This. Add second function argument to + select face index. + Updated to load just one subfont. + (fnt_font_done, FNT_Face_Done): Updated. + (FNT_Face_Init): Handle `face_index'. + Updated. + (FNT_Size_Set_Pixels): Simplified; similar to BDF and PCF, the + bitmap width is now ignored. + (FNT_Load_Glyph): Updated. + Fix glyph index computation. + (winfnt_driver_class): Updated. + +2003-06-25 Owen Taylor + + * src/sfnt/ttload.c (tt_face_load_hdmx): Don't assign + num_records until we actually decide to load the table, + otherwise, we'll segfault in tt_face_free_hdmx. + +2003-06-24 Werner Lemberg + + * src/cff/cffdrivr.c (cff_get_glyph_name): Protect against zero + glyph name pointer. Reported by Mikey Anbary . + +2003-06-23 Werner Lemberg + + * src/tools/glnames.py: Updated to AGL 2.0. + * src/psnames/pstables.h: Regenerated. + +2003-06-22 Werner Lemberg + + * include/freetype/cache/ftcglyph.h, include/freetype/ttnameid.h, + src/base/ftcalc.c, src/base/fttrigon.c, src/cff/cffgload.c, + src/otlayout/otlgsub.c, src/pshinter/pshrec.c, + src/psnames/psmodule.c, src/sfnt/sfobjs.c, src/truetype/ttdriver.c: + Decorate constants with `U' and `L' if appropriate. + + * include/freetype/ftmoderr.h: Updated to include recent module + additions. + + * src/pshinter/pshnterr.h (FT_ERR_BASE): Define as + `FT_Mod_Err_PShinter'. + * src/type42/t42error.h (FT_ERR_BASE): Define as + `FT_Mod_Err_Type42'. + + * src/pshinter/pshrec.h (PS_HINTS_MAGIC): Removed. Not used. + + * include/freetype/config/ftconfig.h [__MWERKS__]: Define FT_LONG64 + and FT_INT64. + +2003-06-21 Werner Lemberg + + * src/winfonts/winfnt.c (FNT_Load_Glyph): Use first_char in + computation of glyph_index. + (FNT_Size_Set_Pixels): To find a strike, first check pixel_height + only, then try to find a better hit by comparing pixel_width also. + Without this fix it isn't possible to access all strikes. + Also compute metrics.max_advance to be in sync with other bitmap + drivers. + + * src/base/ftobjs.c (FT_Set_Char_Size): Remove redundant code. + (FT_Set_Pixel_Size): Assign value to `metrics' after validation of + arguments. + +2003-06-20 Werner Lemberg + + Synchronize computation of height and width for bitmap strikes. The + `width' field in the FT_Bitmap_Size structure is now only useful to + enumerate different strikes. The `max_advance' field of the + FT_Size_Metrics structure should be used to get the (maximum) width + of a strike. + + * src/bdf/bdfdrivr.c (BDF_Face_Init): Don't use AVERAGE_WIDTH for + computing `available_sizes->width' but make it always equal to + `available_sizes->height'. + + * src/pcf/pcfread.c (pcf_load_font): Don't use RESOLUTION_X for + computing `available_sizes->width' but make it always equal to + `available_sizes->height'. + + * src/truetype/ttdriver.c (Set_Pixel_Sizes): Pass only single + argument to function. + + * src/psnames/psmodule.c (ps_unicode_value): Handle `.' after + `uniXXXX' and `uXXXX[X[X]]'. + +2003-06-19 Werner Lemberg + + * src/bdf/bdfdrivr.c: s/FT_Err_/BDF_Err/. + * src/cache/ftccache.c, src/cache/ftcsbits.c, src/cache/ftlru.c: + s/FT_Err_/FTC_Err_/. + * src/cff/cffcmap.c: s/FT_Err_/CFF_Err_/. + * src/pcf/pcfdrivr.c: s/FT_Err_/PCF_Err_/. + * src/psaux/t1cmap.c: Include psauxerr.h. + s/FT_Err_/PSaux_Err_/. + * src/pshinter/pshnterr.h: New file. + * src/pshinter/rules.mk: Updated. + * src/pshinter/pshalgo.c, src/pshinter/pshrec.c: Include pshnterr.h. + s/FT_Err_/PSH_Err_/. + * src/pfr/pfrdrivr.c, src/pfr/pfrobjs.c, src/pfr/pfrsbit.c: + s/FT_Err_/PFR_Err_/. + * src/sfnt/sfdriver.c, src/sfnt/sfobjs.c, src/sfnt/ttcmap0.c, + src/sfnt/ttload.c: s/FT_Err_/SFNT_Err_/. + * src/truetype/ttgload.c: s/FT_Err_/TT_Err_/. + * src/gzip/ftgzip.c: Load FT_MODULE_ERRORS_H and define + FT_ERR_PREFIX and FT_ERR_BASE. + s/FT_Err_/Gzip_Err_/. + +2003-06-19 Dirck Blaskey + + * src/cff/cffload (cff_encoding_load): `nleft' must be FT_UInt, + otherwise adding 1 might wrap the result. + +2003-06-18 Werner Lemberg + + * src/psnames/psmodule.c (ps_unicode_value): Add support to + recognize `uXXXX[X[X]]' glyph names. + Don't handle glyph names starting with `uni' which have more than + four digits. + +2003-06-16 Werner Lemberg + + * include/freetype/freetype.h (FT_Open_Flags): Replaced with + #defines for the constants. + (FT_Open_Args): Change type of `flags' to FT_UInt. + (FT_GlyphSlot): Move `flags' to FT_Slot_Internal. + + * include/freetype/ftimage.h (FT_Outline_Flags, FT_Raster_Flag): + Replaced with #defines for the constants. + + * include/freetype/internal/ftobjs.h (FT_Slot_Internal): New + field `flags' (from FT_GlyphSlot). + Updated all affected source files. + (FT_GLYPH_OWN_BITMAP): New macro (from ftgloadr.h). + + * include/freetype/internal/ftgloadr.h (FT_GLYPH_OWN_BITMAP): Moved + to ftobjs.h. + + * src/base/ftglyph.c (FT_Glyph_To_Bitmap): Use dummy + FT_GlyphSlot_Internal object. + +2003-06-15 Werner Lemberg + + * builds/compiler/gcc.mk, builds/compiler/gcc-dev.mk (CFLAGS): + Add -fno-strict-aliasing to get rid of zillion warnings from gcc + version 3.3. + +2003-06-14 Werner Lemberg + + * include/freetype/ftglyph.h (ft_glyph_bbox_unscaled, + ft_glyph_bbox_subpixels, ft_glyph_bbox_gridfit, + ft_glyph_bbox_truncate, ft_glyph_bbox_pixels): Replaced with + FT_GLYPH_BBOX_UNSCALED, FT_GLYPH_BBOX_SUBPIXELS, + FT_GLYPH_BBIX_GRIDFIT, FT_GLYPH_BBOX_TRUNCATE, FT_GLYPH_BBOX_PIXELS. + The lowercase variants are now (deprecated aliases) to the uppercase + versions. + Updated all other files. + + * include/freetype/ftmodule.h (ft_module_font_driver, + ft_module_renderer, ft_module_hinter, ft_module_styler, + ft_module_driver_scalable, ft_module_driver_no_outlines, + ft_module_driver_has_hinter): Replaced with FT_MODULE_FONT_DRIVER, + FT_MODULE_RENDERER, FT_MODULE_HINTER, FT_MODULE_STYLER, + FT_MODULE_DRIVER_SCALABLE, FT_MODULE_DRIVER_NO_OUTLINES, + FT_MODULE_DRIVER_HAS_HINTER. + The lowercase variants are now (deprecated aliases) to the uppercase + versions. + Updated all other files. + + * src/base/ftglyph.c (FT_Glyph_Get_CBox): Handle bbox_mode better + as enumeration. + + * src/pcf/pcfdrivr.c (pcf_driver_class), src/winfonts/winfnt.c + (winfnt_driver_class), src/bdf/bdfdrivr.c (bdf_driver_class): Add + the FT_MODULE_DRIVER_NO_OUTLINES flag. + +2003-06-13 Detlef Würkner + + * src/pfr/pfrobjs.c (pfr_slot_load): Apply font matrix. + +2003-06-13 Werner Lemberg + + * builds/dos/detect.mk: Test not only for `Dos' but for `DOS' also. + + * builds/dos/dos-emx.mk, builds/compiler/emx.mk: New files for + EMX gcc compiler. + * builds/dos/detect.mk: Add target `emx'. + + * builds/compiler/watcom.mk (LINK_LIBRARY): GNU Make for DOS doesn't + like a trailing semicolon; add a dummy command. + + * src/cid/cidload.c: Remove parse_font_bbox code (already enclosed + with #if 0 ... #endif). + + * src/type1/t1tokens.h: Handle /FontName. + * src/type1/t1load.c (parse_font_name): Removed. + Remove parse_font_bbox code (already enclosed with #if 0 ... + #endif). + + * src/type42/t42parse.c (t42_parse_font_name): Removed. + Remove t42_parse_font_bbox code (already enclosed with #if 0 ... + #endif). + (t42_keywords): Handle /FontName with T1_FIELD_KEY. + +2003-06-12 Werner Lemberg + + * include/freetype/internal/psaux.h (T1_FieldType): Add + T1_FIELD_TYPE_KEY. + (T1_FIELD_KEY): New macro. + * src/psaux/psobjs.c (ps_parser_load_field): Handle + T1_FIELD_TYPE_KEY. + + * src/cid/cidtoken.h: Use T1_FIELD_KEY for /CIDFontName. + +2003-06-11 Alexander Malmberg + + * src/cache/ftlru.c (FT_LruList_Remove_Selection): Decrease + number of nodes. + (FT_LruList_Lookup): Fix assertion for out-of-memory case. + +2003-06-11 Werner Lemberg + + * src/cid/cidload.c (cid_decrypt): Removed. + (cid_read_subrs): Use t1_decrypt from psaux module. + * src/cid/cidload.h: Updated. + * src/cid/cidgload.c (cid_load_glyph): Use t1_decrypt from psaux + module. + +2003-06-10 Werner Lemberg + + * src/cid/cidobjs.c: Apply change 2003-05-31 from . + Compute style flags. + Fix computation of root->height. + * src/cid/cidtoken.h: Handle FontBBox. + * src/cid/cidload.c (cid_load_keyword): Handle + T1_FIELD_LOCATION_BBOX. + (parse_font_bbox): Commented out. + (cid_field_record): Comment out element for parsing FontBBox. + + * src/type42/t42parse.c (t42_parse_font_bbox): Commented out. + (t42_keywords): Handle FontBBox with T1_FIELD_BBOX, not with + T1_FIELD_CALLBACK. + (t42_parse_font_bbox): Commented out. + (t42_load_keyword): Handle T1_FIELD_LOCATION_BBOX. + * src/type42/t42objs.c (T42_Face_Init): Apply change 2003-05-31 + from . + +2003-06-09 George Williams + + * src/truetype/ttinterp.c (SetSuperRound) <0x30>: Follow Apple's + TrueType specification. + (Ins_MDRP, Ins_MIRP): Fix single width cut-in test. + +2003-06-09 Detlef Würkner + + * src/gzip/ftgzip.c: (inflate_mask): Replaced with... + (NO_INFLATE_MASK): This. + * src/gzip/infutil.h: Declare `inflate_mask' conditionally by + NO_INFLATE_MASK. + +2003-06-09 Alexis S. L. Carvalho + + * src/gzip/ftgzip.c (ft_gzip_file_fill_output): Handle Z_STREAM_END + correctly. + +2003-06-09 Wolfgang Domröse + + * src/pshinter/pshglob.c (psh_globals_new): Change calculation of + dim->stdw.count to avoid compiler problem. + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Move the block + variables to the beginning of the function to avoid compiler + problems. + Add casts necessary for 16bit compilers. + +2003-06-09 Werner Lemberg + + * src/pfr/rules.mk (PFR_DRV_SRC): Add pfrsbit.c. + (PFR_DRV_H): Add pfrtypes.h. + + * include/freetype/config/ftconfig.h: s/__MWKS__/__MWERKS__/. + +2003-06-08 Karl Schultz + + * src/pfr/pfrsbit.c (pfr_bitwriter_init): Change type of third + argument to FT_Bool. + (pfr_lookup_bitmap_data): Change type of third and fourth argument + to FT_UInt. Updated caller. + (pfr_load_bitmap_bits): Change type of fourth argument to FT_Bool. + +2003-06-08 Werner Lemberg + + Completely revised FreeType's make management. + + . In all makefiles `/' is used as the path separator. The + conversion to the real path separators is done as late as + possible using $(subst ...). + + . $(HOSTSEP) no longer exists. Now, $(SEP) gives the path separator + for the operating system, and the new $(COMPILER_SEP) the path + separator for the compiler tools. + + . $(BUILD) has been renamed to $(BUILD_DIR). In general, all + directory variables end with `_DIR'. The variants ending in `_' + (like `BASE_' have been removed). + + The following ChangeLog entries only describe changes which are + not related to the redesign. + + * builds/beos/beos-def.mk (BUILD_DIR): Fix typo. + * builds/compiler/watcom.mk (LINK_LIBRARY): Fix linker call to avoid + overlong arguments as suggested by J. Ali Harlow + . + * builds/dos/dos-wat.mk: New file. + * builds/freetype.mk (FREETYPE_H): Include header files from the + `devel' subdirectory. + + * builds/os2/os2-dev.mk, builds/unix/unixddef.mk, + builds/unix/unixddef.mk, builds/win32/w32-bccd.mk, + builds/win32/w32-dev.mk (BUILD_DIR): Fix path. + + * builds/unix/configure.ac, builds/unix/configure: Updated. + * builds/unix/unix-def.in (DISTCLEAN): Add `freetype2.pc'. + +2003-06-07 Werner Lemberg + + * src/base/ftmac.c (FT_New_Face_From_SFNT): s/rlen/sfnt_size/ to + make it compile. + + * devel/ftoption.h: Updated. + +2003-06-07 Detlef Würkner + + * include/freetype/internal/psaux.h, src/truetype/ttgload.h: + s/index/idx/ to fix compiler warnings. + + * src/sfnt/ttcmap0.c (tt_face_build_cmaps): Use more `volatile' to + fix compiler warning. + + * src/gzip/ftgzip.c (BUILDFIXED): Removed. + * src/gzip/inftrees.c (inflate_trees_fixed) [!BUILDFIXED]: Use + FT_UNUSED to remove compiler warning. + +2003-06-06 Werner Lemberg + + * include/freetype/ftstroker.h: Renamed to... + * include/freetype/ftstroke.h: This. + + * src/base/ftstroker.c: Renamed to... + * src/base/ftstroke.c: This. + + * include/freetype/config/ftheader.h (FT_STROKER_H): Updated. + + * src/base/descrip.mms, src/base/Jamfile, src/base/rules.mk: + Updated. + + * src/pcf/pcfdriver.c: Renamed to... + * src/pcf/pcfdrivr.c: This. + * src/pcf/pcfdriver.h: Renamed to... + * src/pcf/pcfdrivr.h: This. + + * src/pcf/Jamfile, src/pcf/rules.mk: Updated. + +2003-06-05 Wenlin Institute (Tom Bishop) + + * src/base/ftmac.c (file_spec_from_path) [TARGET_API_MAC_CARBON]: + Add `#if !defined(__MWERKS__)'. + +2003-06-05 Werner Lemberg + + * include/freetype/internal/psaux.h (T1_FieldType): Add + T1_FIELD_TYPE_FIXED_1000 and T1_FIELD_TYPE_FIXED_1000_P. + (T1_FIELD_FIXED_1000, T1_FIELD_FIXED_1000_P): New macros. + * src/psaux/psobjs.c (ps_parser_load_field): Handle + T1_FIELD_TYPE_FIXED_1000 and T1_FIELD_TYPE_FIXED_1000_P. + + * src/cff/cffparse.c (cff_kind_fixed_thousand): New enumeration. + (CFF_FIELD_FIXED_1000): New macro. + (cff_parser_run): Handle cff_kind_fixed_thousand. + * src/cff/cfftoken.h: Use CFF_FIELD_FIXED_1000 for blue_scale. + * src/cff/cffload (cff_subfont_load): Fix default values of + expansion_factor and blue_scale. + + * src/cif/cidtoken.h, src/type1/t1tokens.h: Use T1_FIELD_FIXED_1000 + for blue_scale. + + * src/pshinter/pshglob.c (psh_globals_new): Fix default value of + blue_scale. + +2003-06-04 Wolfgang Domröse + + * include/freetype/internal/ftdriver.h, + include/freetype/internal/ftobjs.h, + include/freetype/internal/psaux.h, src/cid/cidgload.c, + src/psaux/psobjs.c, src/psaux/t1decode.c, src/psaux/psobjs.h, + src/pshinter/pshrec.c, src/pshinter/pshalgo.c, + src/psnames/psmodule.c, src/raster/ftraster.c, src/sfnt/sfobjs.c, + src/smooth/ftgrays.c, src/smooth/ftsmooth.c, src/truetype/ttobjs.c, + src/truetype/ttdriver.c, src/truetype/ttgload.c, src/type1/t1afm.c, + src/type1/t1gload.c, src/type1/t1gload.h, src/type1/t1load.c, + src/type1/t1objs.c, src/type42/t42parse.c, src/type42/t42parse.h: + Many casts and slight argument type changes to make it work with + a 16bit compiler. + +2003-06-04 Werner Lemberg + + * include/freetype/config/ftoption.h: Defining + TT_CONFIG_OPTION_FORCE_UNPATENTED_HINTING by default is a bad idea + since some fonts (e.g. Arial) produce worse results than without + hinting. Reverted. + +2003-06-04 Werner Lemberg + + * src/truetype/ttgload.c (load_truetype_glyph) + [TT_CONFIG_OPTION_BYTECODE_INTERPRETER]: Call + FT_GlyphLoader_CheckPoints before adding phantom points. This fixes + a segfault bug with fonts (e.g. htst3.ttf) which have nested + subglyphs more than one level deep. Reported by Anthony Fok. + + * include/freetype/config/ftoption.h: Define + TT_CONFIG_OPTION_BYTECODE_INTERPRETER, + TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING, and + TT_CONFIG_OPTION_FORCE_UNPATENTED_HINTING to make it the new + default. + +2003-06-03 Werner Lemberg + + * src/autohint/ahhint.c (ah_hinter_hint_edges): Removed. Just a + wrapper for ah_hint_edges. + (ah_hint_edges): Renamed to... + (ah_hinter_hint_edges): This. + + * src/base/ftobjs.c (FT_Set_Hint_Flags): Removed. Unused. + + * include/freetype/internal/ftobjs.h (FT_Face_InternalRec), + include/freetype/internal/psaux.h (T1_DecoderRec), + src/cff/cffgload.h (CFF_Builder): Remove `hint_flags' field. + Unused. + + * src/cff/cffgload.c (cff_builder_init): Updated. + (cff_decoder_parse_charstrings) : Call hinter->apply + with decoder->hint_mode instead of builder->hint_flags. + * src/psaux/t1decode.c (t1_decoder_init): Updated. + + * src/base/ftstroker.c (ft_stroke_border_export): s/index/idx/. + + * src/sfnt/sfobjs.c (sfnt_load_face): Commented out code which + increased root->height by 15% if the line gap was zero. There exist + fonts (containing e.g. form drawing characters) which intentionally + have a zero line gap value. + + * src/truetype/ttinterp.c (Free_Project, CUR_Func_freeProj): + Removed. Unused. + Updated all callers. + +2003-06-02 Werner Lemberg + + * src/cff/cffobjs.c (cff_face_init): Use symbolic names for + Adobe specific encoding IDs (there was a wrong EID value for custom + encoding). + + * src/cff/cffcmap.h (CFF_CMapStdRec): Remove `count'. + * src/cff/cffcmap.c (cff_cmap_encoding_init, + cff_cmap_encoding_done): Updated. + (cff_cmap_encoding_char_index, cff_cmap_encoding_char_next): Use + 256 as limit for character code. + +2003-06-01 Werner Lemberg + + * src/winfonts/winfnt.c (FNT_Load_Glyph): Revert change from + 2003-03-20. + +2003-05-31 Werner Lemberg + + * include/freetype/fttrigon.h (FT_Vector_Normalize): Removed. + +2003-05-31 + + * src/type1/t1objs.c (T1_Face_Init): Improve algorithm for guessing + the font style by ignoring spaces and hyphens. + + * builds/unix/freetype2.in: Fix `Version' field. + +2003-05-30 Werner Lemberg + + Avoid overwriting of numeric font dictionary entries for synthetic + fonts. Additionally, some entries were handled as `integer' instead + of `number'. + + * include/freetype/internal/psaux.h (T1_FieldType): Add + T1_FIELD_TYPE_BOOL_P, T1_FIELD_TYPE_INTEGER_P, and + T1_FIELD_TYPE_FIXED_P. + (T1_FIELD_BOOL_P, T1_FIELD_NUM_P, T1_FIELD_FIXED_P): New macros. + * src/psaux/psobjs.c (ps_parser_load_field): Handle new field types. + + * include/freetype/internal/cfftypes.h (CFF_FontRecDict), + src/cff/cfftoken.h: Change type of underline_position and + underline_thickness to FT_Fixed. + * src/cff/cffload.c (cff_subfont_load): Fix default values of + underline_position and underline_thickness. + * src/cff/cffobjs.c (cff_face_init): Set underline_position + and underline_thickness in `root'. + + * include/freetype/internal/t1types.h (T1_Font): Change point_type + and stroke_width to pointers. + * include/freetype/t1tables.h (PS_FontInfo): Change italic_angle, + is_fixed_pitch, underline_position, and underline_thickness to + pointers. + * src/type1/t1tokens.h: Change italic_angle, is_fixed_pitch, + underline_position, and underline_thickness to pointers. Change + the type of the latter two to `fixed'. + Change type of stroke_width to `fixed' and make it a pointer. + Change paint_type to pointer. + * src/type1/t1objs.c (T1_Face_Done): Updated. + (T1_Face_Init): Updated. + Fix assignment of underline_position and underline_thickness. + + * src/cid/cidtoken.h: Change italic_angle, is_fixed_pitch, + underline_position, and underline_thickness to pointers. Change + the type of the latter two to `fixed'. + Change type of stroke_width to `fixed'. + * src/cid/cidobjs.c (cid_face_done): Updated. + (cid_face_init): Updated. + Fix assignment of underline_position and underline_thickness. + + * src/type42/t42parse.c: Change italic_angle, is_fixed_pitch, + underline_position, and underline_thickness to pointers. Change the + type of the latter two to `fixed'. + Change type of stroke_width to `fixed' and make it a pointer. + Change paint_type to pointer. + * src/type42/t42objs.c (T42_Face_Init): Updated. + Fix assignment of underline_position and underline_thickness. + (T42_Face_Done): Updated. + + * src/base/ftobjs.c (open_face_from_buffer): Fix compiler warning. + * src/pshinter/pshglob.c, src/pshinter/pshglob.h + (psh_globals_set_scale): Make it a local function. + + * test/gview.c: Fix renaming ps3->ps typo. + Formatting. + +2003-05-29 Werner Lemberg + + * src/pshinter/pshalgo1.[ch], src/pshinter/pshalgo2.[ch]: Removed. + * src/pshinter/pshalgo.h: Removed. + + * src/pshinter/pshalgo3.[ch]: Renamed to... + * src/pshinter/pshalgo.[ch]: New files. + s/PSH3/PSH/. + s/psh3/psh/. + s/ps3/ps/. + + * src/pshinter/pshrec.c, src/pshinter/pshinter.c: Updated. + * src/pshinter/rules.mk, src/pshinter/Jamfile: Updated. + + * src/pshinter/pshglob.[ch] (psh_dimension_snap_width): Commented + out. + + * tests/gview.c: Remove code for pshalgo1 and pshalgo2. + Updated. + +2003-05-28 Martin Zinser + + * vms_make.com: Reworked support for shareable images on VMS. The + first version was kind of a hack; the current implementation of the + procedure to extract the required symbols is much cleaner. + + Reworked creation of MMS files, avoiding a number of temporary files + which were created in the previous version. + + Further work on creating descrip.mms files on the fly. + + * builds/vms/descrip.mms, src/autohint/descrip.mms, + src/type1/descrip.mms: Removed. + +2003-05-28 Werner Lemberg + + * src/pshinter/pshalgo3.c (psh3_glyph_compute_extrema): Skip + contours with only a single point to avoid segfault. + + * src/base/ftglyph.c (FT_Glyph_To_Bitmap): Activate code for + handling `origin'. + +2003-05-24 Werner Lemberg + + * src/autohint/ahtypes.h (AH_OPTION_NO_STRONG_INTERPOLATION): + Removed since unused. + +2003-05-21 Werner Lemberg + + * include/freetype/config/ftstdlib.h (ft_strcat): New wrapper macro + for strcat. + + * src/base/ftmac.c (create_lwfn_name): s/isupper/ft_isupper/. + (parse_font): s/memcpy/ft_memcpy/. + (is_dfont) [TARGET_API_MAC_CARBON]: s/memcmp/ft_memcmp/. + * src/base/ftobjs.c (load_mac_face) [FT_MACINTOSH]: + s/strlen/ft_strlen/. + s/strcat/ft_strcat/. + s/strcpy/ft_strcpy/. + * src/gzip/zutil.h: s/memset/ft_memset/. + s/memcmp/ft_memcmp/. + + * src/bdf/bdfdrivr.c (BDF_Face_Init), src/pcf/pcfdriver.c + (PCF_Face_Init): Test for charset registry case-insensitively. + + * src/gzip/ftgzip.c (ft_gzip_fil_io): Revert change from yesterday; + it has already been fixed differently. + + * src/truetype/ttinterp.c (DO_SFVTL): Add missing braces around + if-clause. + +2003-05-21 Martin Zinser + + * t1load.c (parse_blend_axis_types): Fix compiler warning. + + * descrip.mms: Removed. Now created by... + + * vms_make.com: New file. + +2003-05-21 Weiqi Gao + + * src/gzip/ftgzip.c (ft_gzip_file_io): Avoid zero value of `delta' + to prevent infinite loop. + +2003-05-21 Lars Clausen + + * docs/VERSION.DLL: Provide better autoconf snippet to check + FreeType version. + +2003-05-21 Werner Lemberg + + * src/base/ftobjs.c (open_face): Free `internal' not + `face->internal' in case of error to avoid possible segfault. + + * src/pshinter/pshalgo3.c (ps3_hints_apply): Check whether we + actually have an outline. + +2003-05-20 David Chester + + * src/pshinter/pshalgo3.c (ps3_hints_apply): Try to optimize + y_scale so that the top of non-capital letters is aligned on a pixel + boundary whenever possible. + + * src/autohint/ahhint.c (ah_hint_edges): Make sure that lowercase + m's maintain their symmetry. + +2003-05-20 Werner Lemberg + + * src/autohint/ahhint.c (ah_hinter_load_glyph): Oops! David's + patch from yesterday has been resolved already in a different + way. Reverted. + +2003-05-19 David Chester + + * src/autohint/ahhint.c (ah_hinter_load_glyph): Don't scale + y_scale locally but face->size->metrics.y_scale. + +2003-05-19 David Turner + + * src/sfnt/ttcmap0.c (tt_cmap4_char_next): Select proper start + value for `hi' to avoid infinite loop. + +2003-05-18 Yong Sun + + * src/raster/ftraster.c (Insert_Y_Turn): Fix overflow test. + +2003-05-18 Werner Lemberg + + * include/freetype/config/ftoption.h [FT_CONFIG_OPTION_MAC_FONTS]: + New macro. + * src/base/ftobjs.c: Use it to control mac font support on non-mac + platforms. + +2003-05-17 George Williams + + Implement partial support of Mac fonts on non-Mac platforms. + + * src/base/ftobjs.c (memory_stream_close, new_memory_stream, + open_face_from_buffer, Mac_Read_POST_Resource, + Mac_Read_sfnt_Resource, IsMacResource, IsMacBinary, load_mac_face) + [!FT_MACINTOSH]: New functions. + (FT_Open_Face) [!FT_MACINTOSH]: Use load_mac_face. + +2003-05-17 Werner Lemberg + + * src/base/ftobjs.c (FT_Load_Glyph): Scale linear advance width only + if FT_FACE_FLAG_SCALABLE is set (otherwise we have a division by + zero since FNT and friends don't define `face->units_per_EM'). + +2003-05-15 David Turner + + * src/base/fttrigon.c (FT_Vector_Rotate): Avoid rounding errors + for small values. + +2003-05-15 Werner Lemberg + + * src/autohint/ahtypes.h (AH_PointRec): Remove unused `in_angle' + and `out_angle' fields. + +2003-05-14 George Williams + + * src/base/ftmac.c (FT_New_Face_From_SFNT): Handle CFF files also. + +2003-05-14 Werner Lemberg + + * include/freetype/freetype.h: Fix typo in comment + (FT_HAS_FIXED_SIZES). + +2003-05-10 Dan Williams + + * builds/unix/aclocal.m4: Comment out definition of + `allow_undefined_flag' for Darwin 1.3. + * builds/unix/configure.ac: Add option --with-old-mac-fonts. + * builds/unix/ltmain.sh: Fix version numbering for Darwin 1.3. + * builds/unix/configure: Regenerated. + + * include/freetype/config/ftconfig.h: Fix conditions for defining + `FT_MACINTOSH'. + * src/base/ftbase.c: Include `ftmac.c' conditionally. + * src/base/ftmac.c: Handle __GNUC__. + +2003-05-07 YAMANO-UCHI Hidetoshi + + * src/cid/cidload.c (is_alpha): Removed. + (cid_parse_dict): Use `cid_parser_skip_alpha' instead of `is_alpha'. + +2003-05-07 Werner Lemberg + + * src/autohint/ahoptim.c, src/autohint/ahoptim.h: Obsolete, removed. + +2003-05-07 David Turner + + * src/autohint/ahglyph.c (ah_setup_uv): Exchange `for' loop and + `switch' statement to make it run faster. + (ah_outline_compute_segments): Reset `segment->score' and + `segment->link'. + (ah_outline_link_segments): Provide alternative code which does + the same but runs much faster. + Handle major direction also. + (ah_outline_compute_edges): Scale `edge_distance_threshold' down + after rounding instead of scaling comparison value in loop. + + * src/autohint/ahhint.c (ah_hinter_align_stong_points): Provide + alternative code which runs faster. + Handle `before->scale == 0'. + + * src/autohint/ahtypes.h (AH_SegmentRec): Move some fields down. + (AH_EdgeRec): Move some fields in structure. + New field `scale'. + + * src/sfnt/ttcmap0.c (tt_cmap4_char_next): Use binary search. + +2003-05-02 Werner Lemberg + + * src/autohint/ahoptim.c (LOG): Renamed to... + (AH_OPTIM_LOG): This. + (AH_Dump_Springs): Fix log message format. + + * src/autohint/ahhint.c (ah_hint_edges_3): Renamed to... + (ah_hint_edges): This. + +2002-05-02 Keith Packard + + * src/bdf/bdfdrivr.c (BDF_Set_Pixel_Size): Initialize `max_advance'. + +2003-05-01 Werner Lemberg + + * src/autohint/ahglyph.c (ah_test_extrema): Renamed to... + (ah_test_extremum): This. + +2003-04-28 Werner Lemberg + + * builds/unix/configure.ac: Generate `freetype.pc' from + `freetype.in'. + * builds/unix/configure: Regenerated. + * builds/unix/install.mk (install, uninstall): Handle `freetype.pc'. + +2003-04-28 Gustavo J. A. M. Carneiro + + * builds/unix/freetype2.in: New file. Contains building information + for the `pkg-config' package. + +2003-04-28 David Turner + + * src/base/ftobjs.c (FT_Load_Glyph): Fix boundary check for + `glyph_index'. + +2003-04-25: Graham Asher + + Added the optional unpatented hinting system for TrueType. It + allows typefaces which need hinting to produce correct glyph forms + (e.g., Chinese typefaces from Dynalab) to work acceptably without + infringing Apple patents. This system is compiled only if + TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING is defined in + ftoption.h. + + * include/freetype/ttunpat.h: New file. Defines + FT_PARAM_TAG_UNPATENTED_HINTING. + + * include/freetype/config/ftheader.h (FT_TRUETYPE_UNPATENTED_H): New + macro to use when including ttunpat.h. + + * include/freetype/config/ftoption.h + (TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING, + TT_CONFIG_OPTION_FORCE_UNPATENTED_HINTING): New configuration macros + (not defined, but in comments) for the unpatented hinting system. + + * include/freetype/internal/tttypes.h (TT_FaceRec) + [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING]: New element `FT_Bool + unpatented_hinting'. + + * src/truetype/ttinterp.c (NO_APPLE_PATENT, APPLE_THRESHOLD): + Removed. + (GUESS_VECTOR): New macro. + (TT_Run_Context) [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING]: + Set `both_x_axis'. + (tt_default_graphics_state) + [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING]: Updated. + (Current_Ratio) [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING]: + Handle `unpatented_hinting'. + (Direct_Move) [NO_APPLE_PATENT]: Removed. + [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING]: Insert assertion. + (Project, FreeProject) + [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING]: Insert assertion. + (Compute_Funcs) [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING]: + Implement unpatented hinting. + (DO_SPVTCA, DO_SFVTCA, DO_SPVTL, DO_SFVTL, DO_SPVFS, DO_SFVFS, + Ins_SDPVTL): Call `GUESS_VECTOR'. + (DO_GPV, DO_GFV) [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING]: + Handle `unpatented_hinting'. + (Compute_Point_Displacement) [NO_APPLE_PATENT]: Removed. + [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING]: Implement unpatented + hinting. + (Move_Zp2_Point, Ins_SHPIX, Ins_DELTAP, Ins_DELTAC) + [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING]: Implement unpatented + hinting. + (TT_RunIns): Updated. + + * src/truetype/ttobjs.c + [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING]: Include + FT_TRUETYPE_UNPATENTED_H. + (tt_face_init) [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING, + TT_CONFIG_OPTION_FORCE_UNPATENTED_HINTING]: Check + FT_PARAM_TAG_UNPATENTED_HINTING. + + * src/truetype/ttobjs.h (TT_GraphicsState) + [TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING]: Add `both_x_axis'. + +2003-04-25 Werner Lemberg + + * src/bdf/bdflib.c (hash_bucket, hash_lookup): Use `const' for first + argument. + (bdf_get_font_property): Use `const' for third argument. + Updated all callers. + * src/bdf/bdfdrivr.c (BDF_Face_Init): Set pixel width and height + similar to the PCF driver. + * src/bdf/bdf.h (_hashnode): Use `const' for `key'. + Updated. + + * src/gzip/ftgzip.c: C++ doesn't like that the array `inflate_mask' + is declared twice. It is perhaps better to modify the zlib source + files directly instead of this hack. + (zcalloc, zfree, ft_gzip_stream_close, ft_gzip_stream_io): Add casts + to make build with g++ successful. + +2003-04-24 Manish Singh + + * src/cid/cidobjs.c (cid_face_init), src/type1/t1objs.c + (T1_Face_Init), src/type42/t42objs.c (T42_Face_Init): Split on `-' + also for searching the style name. + +2003-04-24 David Turner + + * src/pcf/pcfread.c (pcf_load_font): Fixed the computation of + face->num_glyphs. We must increase the value by 1 to respect the + convention that glyph index 0 always corresponds to the `missing + glyph'. + +2003-04-24 Werner Lemberg + + * builds/unix/unix-cc.in (CFLAGS): Add @CPPFLAGS@. + +2003-04-24 Dieter Baron + + * builds/unix/freetype-config.in (cflags): Emit FreeType 2's include + files first. Otherwise there are conflicts with FreeType 1 + installed simultaneously. + +2003-04-23 Werner Lemberg + + Fixing bugs reported by Nelson Beebe. + + * src/base/ftstroker.c (FT_Stroker_ParseOutline): Remove unused + variable `in_path'. + + * src/base/ftobjs (ft_glyphslot_set_bitmap): Change type of + second argument to `FT_Byte*'. + * include/freetype/internal/ftobjs.h: Updated. + + * src/bdf/bdflib.c (_bdf_readstream): Remove unused variable `res'. + (_bdf_parse_glyphs): Remove unused variable `next'. + Mark `call_data' as unused. + + * src/cache/ftlru.c (FT_LruList_Lookup): Remove unused variable + `plast'. + + * src/pcf/pcfread.c (pcf_seek_to_table_type): Slight recoding to + actually use `error'. + (pcf_load_font): Remove unused variable `avgw'. + + * src/pfr/pfrobjs.c (pfr_face_get_kerning): Change return type + to `void'. + Mark `error' as unused. + * src/pfr/pfrobjs.h: Updated. + * src/pfr/pfrdrivr.c (pfr_get_kerning): Updated. + + * src/sfnt/ttload.c (sfnt_dir_check): Remove unused variable + `format_tag'. + + * src/sfnt/ttcmap0.c (tt_cmap6_validate, tt_cmap10_validate): Remove + unused variable `start'. + (tt_cmap10_char_next): Remove unused variable `result' + + * src/sfnt/sfobjs.c (tt_face_get_name): Mark `error' as unused. + + * src/sfnt/sfdriver.c (get_sfnt_postscript_name): Mark `error' as + unused. + + * src/type1/t1objs.c (T1_Face_Init): Remove unused variable + `pshinter'. + + * src/type1/t1gload.c (T1_Load_Glyph): Use `glyph_data_loaded' + only for FT_CONFIG_OPTION_INCREMENTAL. + +2003-04-23 Akito Hirai + + * src/sfnt/ttcmap0.c (tt_cmap4_validate): Provide a weak variant + of the glyph ID bounding check if FT_VALIDATE_TIGHT is not active. + Without this change, many CJK fonts from Dynalab are rejected. + +2003-04-23 Joe Marcus Clarke + + * src/base/ftbdf.c (FT_Get_BDF_Property): Check for valid + `get_interface'. + +2003-04-23 Paul Miller + + * src/base/ftmac.c (parse_fond): Fix handling of style names. + +2003-04-23 Werner Lemberg + + * src/pfr/pfrload.c (pfr_extra_item_load_font_id): Use FT_PtrDist + instead of FT_Uint for `len'. + +2003-04-22 Werner Lemberg + + * src/gzip/ftgzip.c (zcalloc) [!FT_CONFIG_OPTION_SYSTEM_ZLIB]: + Convert K&R format to modern C usage. + (FT_Stream_OpenGzip): Use long constant. + +2003-04-21 Werner Lemberg + + * src/cache/ftccache.c (ftc_cache_lookup): Remove shadow declaration + of `manager'. + +2003-04-20 Werner Lemberg + + * doc/INSTALL.UNX: Cleaned up. + +2003-04-09 Torrey Lyons + + * src/base/ftmac.c (open_face_from_buffer): Removed a double-free + bug that had nasty consequences when trying to open an `invalid' + font on a Mac. + +2003-04-09 Mike Fabian + + * src/bdf/bdfdrivr.h (BDF_encoding_el), src/pcf/pcf.h + (PCF_EncodingRec): Changed FT_Short to FT_UShort in order to be able + to access more than 32768 glyphs in fonts. + +2003-04-08 David Turner + + + * Version 2.1.4 released. + ========================= + + +2003-04-03 Martin Muskens + + * src/type1/t1load.c (T1_Open_Face): Fixed the code to make it + handle special cases where a font only contains a `.notdef' glyph + (happens in PDF-embedded fonts). Otherwise, FT_Panic was called. + +2003-03-27 David Turner + + * README: Udpated. + + * README.UNX: Removed (now replaced by docs/INSTALL.UNX). + + * src/pshinter/pshalgo3.c: The hinter now performs as in 2.1.3 and + will ignore stem quantization only when FT_LOAD_TARGET_SMOOTH is + used. + (psh3_dimension_quantize_len): Enabled. + (psh3_hint_align): Enable commented code. + (psh3_hint_align_light): Commented out. + + * src/base/ftobjs.c (FT_Set_Char_Size): Changed the default + computations to include rounding in all cases; this is required to + provide accurate kerning data when native TrueType hinting is + enabled. + + * src/type1/t1load.c (is_name_char): The Type 1 loader now accepts + more general names according to the PostScript specification (the + previous one was too restrictive). + (parse_font_name, parse_encoding, parse_charstrings, parse_dict): + Use `is_name_char'. + (parse_subrs): Handle empty arrays. + +2003-03-20 David Turner + + Serious rewriting of the documentation. + + * docs/BUGS, docs/BUILD: Removed. + * docs/DEBUG.TXT: Renamed to... + * docs/DEBUG: This. + * docs/CUSTOMIZE, docs/TRUETYPE, docs/UPGRADE.UNX: New files. + * docs/INSTALL.ANY, docs/INSTALL.UNX, docs/INSTALL.GNU New files, + containing platform specific information previously in INSTALL. + * docs/readme.vms: Renamed to... + * docs/INSTALL.VMS: This. + + * docs/*: Updated. + + Introduced three new functions to deal with glyph bitmaps within + FT_GlyphSlot objects: + + ft_glyphslot_free_bitmap + ft_glyphslot_alloc_bitmap + ft_glyphslot_set_bitmap + + These functions are much more convenient to use than managing the + FT_GLYPH_OWN_BITMAP flag manually. + + * include/freetype/internal/ftobjs.h (ft_glyphslot_free_bitmap, + ft_glyphslot_alloc_bitmap, ft_glyphslot_set_bitmap): New functions. + * src/base/ftobjs.c: Implement them. + (ft_glyphslot_done): Use ft_glyphslot_free_bitmap. + + * src/bdf/bdfdrivr.c (BDF_Glyph_Load), src/pcf/pcfdriver.c + (PCF_Glyph_Load): Remove unused variable `memory'. + Use `ft_glyphslot_*' functions. + Don't set `FT_GLYPH_OWN_BITMAP'. + + * src/pfr/pfrsbit.c (pfr_slot_load_bitmap): Use + `ft_glyphslot_alloc_bitmap'. + + * src/sfnt/ttsbit.c (Load_SBit_Image): Change 5th argument to type + `FT_GlyphSlot'. + Adding argument `depth' to handle recursive calls. + Use `ft_glyphslot_alloc_bitmap'. + (tt_face_load_sbit_image): Remove unused variable `memory'. + Don't handle `FT_GLYPH_OWN_BITMAP'. + Update call to Load_SBit_Image. + + * src/type42/t42objs.c (ft_glyphslot_clear): Renamed to... + (t42_glyphslot_clear): This. Updated caller. + Call `ft_glyphslot_free_bitmap'. + + * src/winfonts/winfnt.c (FNT_Load_Glyph): Use + `ft_glyphslot_set_bitmap'. + Don't handle `FT_GLYPH_OWN_BITMAP'. + + * src/cache/ftlru.c (FT_LruList_Lookup): Fixed an invalid assertion + check. + + * src/autohint/ahglyph.c (ah_outline_load): Add two scaling + arguments. + * src/autohint/ahglyph.h: Updated. + * src/autohint/ahhint.c (ah_hinter_load): Updated. + * src/autohint/ahglobal.c (ah_hinter_compute_widths): Updated. + + * src/cache/ftccache.c (ftc_family_done): Fixed small bug that could + crash the cache in rare circumstances (mostly with broken fonts). + +2003-03-15 David Turner + + * src/truetype/ttdriver.c (Set_Char_Sizes): Fixed a small rounding + bug. Actually, it seems that previous versions of FreeType didn't + perform TrueType rounding exactly as appropriate. + +2003-03-14 David Turner + + * src/truetype/ttdriver.c (Set_Char_Sizes): Fixing the small + TrueType native rendering glitches; they came from a small rounding + error. + +2003-03-13 David Turner + + Added new environment variables to control memory debugging with + FreeType. See the description of `FT2_DEBUG_MEMORY', + `FT2_ALLOC_TOTAL_MAX' and `FT2_ALLOC_COUNT_MAX' in DEBUG.TXT. + + * src/base/ftdbgmem.c (FT_MemTableRec): Add `alloc_count', + `bound_total', `alloc_total_max', `bound_count', `alloc_count_max'. + (ft_mem_debug_alloc): Handle new variables. + (ft_mem_debug_init): s/FT_DEBUG_MEMORY/FT2_DEBUG_MEMORY/. + Handle new environment variables. + * docs/DEBUG.TXT: Updated. + + Fixed the cache sub-system to correctly deal with out-of-memory + conditions. + + * src/cache/ftccache.c (ftc_node_destroy): Comment out generic + check. + (ftc_cache_lookup): Implement loop. + * src/cache/ftccmap.c: Define FT_COMPONENT. + * src/cache/ftcsbits.c (ftc_sbit_node_load): Handle + FT_Err_Out_Of_Memory. + * src/cache/ftlru.c: Include FT_INTERNAL_DEBUG_H. + (FT_LruList_Lookup): Implement loop. + + * src/pfr/pfrobjs.c (pfr_face_done): Fix memory leak. + (pfr_face_init): Fixing compiler warnings. + + * src/psaux/psobjs.c (reallocate_t1_table): Fixed a bug (memory + leak) that only happened when a try to resize an array would end in + an out-of-memory condition. + + * src/smooth/ftgrays.c (gray_convert_glyph): Removed compiler + warnings / volatile bug. + + * src/truetype/ttobjs.c (tt_glyphzone_done): Removed segmentation + fault that happened in tight memory environments. + +2003-02-28 Pixel + + * src/gzip/ftgzip.c (ft_gzip_file_done): Fixed memory leak: The ZLib + stream was not properly finalized. + +2003-02-25 Anthony Fok + + * src/cache/ftccmap.c: Include FT_TRUETYPE_IDS_H. + (ftc_cmap_family_init): The cmap cache now + supports UCS-4 charmaps when available in Asian fonts. + + * src/sfnt/ttload.c, src/base/ftobjs.c: Changed `asian' to `Asian' + in comments. + +2003-02-25 David Turner + + * src/gzip/ftgzip.c (ft_gzip_file_fill_output): Fixed a bug that + caused FreeType to loop endlessly when trying to read certain + compressed gzip files. The following test reveals the bug: + + touch 0123456789 ; gzip 0123456789 ; ftdump 0123456789.gz + + Several fixes to the PFR font driver: + + - The list of available embedded bitmaps was not correctly set in + the root FT_FaceRec structure describing the face. + + - The glyph loader always tried to load the outlines when + FT_LOAD_SBITS_ONLY was specified. + + - The table loaded now scans for *undocumented* elements of a + physical font's auxiliary data record. This is necessary to + retrieve the `real' family and style names. + + NOTE THAT THESE CHANGES THE FAMILY NAME OF MANY PFR FONTS! + + * src/pfr/pfrload.c (pfr_aux_name_load): New function. + (pfr_phy_font_done): Free `family_name' and `style_name' also. + Remove unused variables. + (pfr_phy_font_load): Extract useful information from the auxiliary + bytes. + + * src/pfr/pfrobjs.c (pfr_face_done): Set pointers to NULL. + (pfr_face_init): Provide fallback values for `family_name' and + `style_name'. + Handle strikes. + (pfr_slot_load): Handle FT_LOAD_SBITS_ONLY. + * src/pfr/pfrtypes.h (PFR_PhyFontRec): Add fields `ascent', + `descent', `leading', `family_name', and `style_name'. + + * src/truetype/ttdriver.c (Set_Char_Sizes): Fixed a rounding bug + when computing the scale factors for a given character size in + points with resolution. + + * devel/ft2build.h, devel/ftoption.h: New files (in a new directory) + which are special development versions of include/ft2build.h and + include/freetype/config/ftoption.h, respectively. + +2003-02-18 David Turner + + Fixing the slight distortion problem that occurred due to the latest + auto-hinter changes. + + * src/base/ftobjs.c (ft_recompute_scaled_metrics): Fix rounding. + + * src/truetype/ttdriver.c (Set_Char_Sizes): New variable `metrics2'. + [!TT_CONFIG_OPTION_BYTECODE_INTERPRETER]: Removed. + + * src/truetype/ttobjs.h (TT_SizeRec): New field `metrics'. + * src/truetype/ttobjs.c (Reset_Outline_Size): Fix initialization of + `metrics'. + [FT_CONFIG_CHESTER_ASCENDER]: Code removed. + (Reset_SBit_Size): Fix initialization of `metrics'. + + * src/truetype/ttinterp.c (TT_Load_Context): Fix initialization of + `exec->metrics'. + + * src/autohint/ahhint.c (ah_hinter_load): Disabled the advance width + `correction' which seemed to provide more trouble than benefits. + +2003-02-13 Graham Asher + + Changed the incremental loading interface in a way that makes it + simpler and allows glyph metrics to be changed (e.g., by adding a + constant, as required by CFF fonts) rather than just overridden. + This was required to make the GhostScript-to-FreeType bridge work. + + * src/cff/cffgload.c (cff_slot_load) [FT_CONFIG_OPTION_INCREMENTAL]: + Allow metrics to be overridden. + * src/cid/cidgload.c (cid_load_glyph) [FT_CONFIG_OPTION_INCREMENTAL]: + Ditto. + + * src/truetype/ttgload.c (load_truetype_glyph) + [FT_CONFIG_OPTION_INCREMENTAL]: Simplify. + (compute_glyph_metrics) [FT_CONFIG_OPTION_INCREMENTAL]: Code block + moved down. + + * src/type1/t1gload.c (T1_Parse_Glyph_And_Get_Char_String) + [FT_CONFIG_OPTION_INCREMENTAL]: Updated. + + * include/freetype/ftincrem.h: Updated. + +2003-01-31 David Turner + + * docs/CHANGES, docs/VERSION.DLL, docs/TODO: Updating documentation + for the 2.1.4 release. + + * builds/win32/visualc/freetype.dsp, + builds/win32/visualc/index.html: Updating the project file for + 2.1.4. + + * src/gzip/adler32.c, src/gzip/ftgzip.c, src/gzip/infblock.c, + src/gzip/infcodes.c, src/gzip/inflate.c, src/gzip/inftrees.c, + src/gzip/infutil.c: Removed old-style (K&R)function definitions. + This avoids warnings with Visual C++ at its most pedantic mode. + + * src/pfr/pfrsbit.c: Removed compiler warnings. + + * src/cache/ftccmap.c (ftc_cmap_family_init): Changed an FT_ERROR + into an FT_TRACE1 since it caused `ftview' and others to dump too + much junk when trying to display a waterfall with a font without a + Unicode charmap (e.g. SYMBOL.TTF). + + Implemented FT_CONFIG_CHESTER_BLUE_SCALE, corresponding to the last + patch from David Chester, but with a much simpler (and saner) + implementation. + + * src/autohint/ahhint.c (ah_hinter_load_glyph) + [FT_CONFIG_CHESTER_BLUE_SCALE]: Try to optimize the y_scale so that + the top of non-capital letters is aligned on a pixel boundary + whenever possible. + + * src/base/ftobjs.c (FT_Set_Char_Size) + [FT_CONFIG_CHESTER_BLUE_SCALE]: Round differently. + * src/truetype/ttdriver.c (Set_Char_Sizes) + [TT_CONFIG_OPTION_BYTECODE_INTERPRETER]: Do some rounding only + if this macro is defined. + + * src/truetype/ttobjs.c (Reset_Outline_Size) + [FT_CONFIG_CHESTER_ASCENDER]: Round differently. + + * src/pshinter/pshalgo3.c: Improved the Postscript hinter. Getting + rid of stem snapping seems to work well here (though the stems are + still slightly moved to increase contrast). + (psh3_dimension_quantize_len): Commented out. + (psh3_hint_align_light): New function. + (psh3_hint_align): Comment out some code. + + THIS IMPROVES ANTI-ALIASED RENDERING, BUT MONOCHROME AND LCD MODES + STILL SUCK. + +2003-01-22 David Chester + + * src/autohint/ahhint.c (ah_compute_stem_width): Small fix to the + stem width optimization. + +2003-01-22 David Turner + + Adding a new API `FT_Get_BDF_Property' to retrieve the BDF + properties of a given PCF or BDF font. + + * include/freetype/ftbdf.h (FT_PropertyType): New enumeration. + (BDF_Property, BDF_PropertyRec): New structure. + FT_Get_BDF_Property): New function. + * include/freetype/internal/bdftypes.h: Include FT_BDF_H. + (BDF_GetPropertyFunc): New function pointer. + + * src/base/ftbdf.c (test_font_type): New helper function. + (FT_Get_BDF_Charset_ID): Use `test_font_type'. + (FT_Get_BDF_Property): New function. + + * src/bdf/bdfdrivr.c: Include FT_BDF_H. + (bdf_get_bdf_property, bdf_driver_requester): New functions. + (bdf_driver_class): Use `bdf_driver_requester'. + + * src/pcf/pcfdrivr.c: Include FT_BDF_H. + (pcf_get_bdf_property, pdc_driver_requester): New functions + (pcf_driver_class): Use `pcf_driver_requester'. + + * src/pcf/pcfread.c: Include `pcfread.h'. + (pcf_find_property): Decorate it with FT_LOCAL_DEF. + * src/pcf/pcfread.h: New file, providing `pcf_find_property'. + + * src/sfnt/ttload.c (sfnt_dir_check): Relaxed the `head' table size + verification to accept a few broken fonts who pad the size + incorrectly (the table should be padded, but its `size' field + shouldn't according to the specification). + +2003-01-18 Werner Lemberg + + * builds/unix/ltmain.sh: Regenerated with `libtoolize --force + --copy' from libtool 1.4.3. + * builds/unix/aclocal.m4: Regenerated with `aclocal -I .' from + automake 1.7.1. + * builds/unix/configure: Regenerated with autoconf 2.54. + * builds/unix/config.guess, builds/unix/config.sub: Updated from + `config' CVS module at subversions.gnu.org. + * builds/unix/install-sh, builds/unix/mkinstalldirs: Updated from + `automake' CVS module at subversions.gnu.org. + +2003-01-15 David Turner + + * include/freetype/freetype.h: Fixed documentation for + FT_Size_Metrics. + +2003-01-15 James Su + + * src/gzip/ftgzip.c (ft_gzip_check_header): Bugfix: couldn't read + certain gzip-ed font files (typo: `&&' -> `&'). + +2003-01-15 Huw D M Davies + + Added a Windows .FNT specific API (mostly for Wine). Also fixed a + nasty bug in the header loader which would cause invalid memory + overwrites. + + * include/freetype/config/ftheader.h (FT_WINFONTS_H): New macro + for ftwinfnt.h. + * include/freetype/internal/fnttypes.h: Include FT_WINFONTS_H. + (FNT_FontRec): Updated. + Move Windows FNT definition to... + * include/freetype/ftwinfnt.h: This new file. + (FT_WinFNT_HeaderRec): Rename `reserved2' to `reserved1'. + * src/base/ftwinfnt.c: New file, providing `FT_Get_WinFNT_Header'. + * src/winfonts/winfnt.c (winfnt_header_fields): Updated. + Rename `reserved2' to `reserved1'. + (fnt_font_load): Updated. + + * src/base/Jamfile, src/base/descrip.mms, src/base/rules.mk: + Updated. + +2003-01-14 Graham Asher + + * include/freetype/ftglyph.h, src/base/ftglyph.c: Added `const' to + the type of the first argument to FT_Matrix_Multiply, which isn't + changed -- this adds documentation and convenience. + +2003-01-13 Graham Asher + + * src/sfnt/ttload.c (tt_face_load_metrics) + [FT_CONFIG_OPTION_INCREMENTAL]: TrueType typefaces without + horizontal metrics (without the `hmtx' table) are now tolerated if + an incremental interface has been specified that has a + get_glyph_metrics function, implying that metrics will be supplied + from outside. This happens for certain Type 42 fonts passed from + GhostScript. + +2003-01-11 David Chester + + Patches to the auto-hinter in order to slightly improve the output. + Note that everything is controlled through the new + FT_CONFIG_OPTION_CHESTER_HINTS defined in `ftoption.h'. There are + also individual FT_CONFIG_CHESTER_XXX macros to control individual + `features'. + + Note that all improvements are enabled by default, but can be + tweaked for optimization and testing purposes. The configuration + macros will most likely disappear in the short future. + + * include/freetype/config/ftoption.h + (FT_CONFIG_OPTION_CHESTER_HINTS): New macro. + (FT_CONFIG_CHESTER_{SMALL_F,ASCENDER,SERIF,STEM,BLUE_SCALE}) + [FT_CONFIG_OPTION_CHESTER_HINTS]: New macros to control individual + features. + + * src/autohint/ahglobal.c (blue_chars) [FT_CONFIG_CHESTER_SMALL_F]: + Add blue zone for `fijkdbh'. + * src/autohint/ahglobal.h (AH_IS_TOP_BLUE) + [FT_CONFIG_CHESTER_SMALL_F]: Use `AH_BLUE_SMALL_F_TOP'. + * src/autohint/ahglyph.c (ah_outline_compute_edges) + [FT_CONFIG_CHESTER_SERIF]: Use `AH_EDGE_SERIF'. + (ah_outline_compute_blue_edges) [FT_CONFIG_CHESTER_SMALL_F]: + Increase threshold for `best_dist'. + * src/autohint/ahhint.c (ah_compute_stem_width) + [FT_CONFIG_CHESTER_SERIF]: Provide new version for improved serif + handling. + (ah_align_linked_edge) [FT_CONFIG_CHESTER_SERIF]: Use special + version of `ah_compute_stem_width'. + (ah_hint_edges_3) [FT_CONFIG_CHESTER_STEM]: A new algorithm for stem + alignment when stem widths are less than 1.5 pixels wide centers the + stem slightly off-center of the center of a pixel (this increases + sharpness and consistency). + [FT_CONFIG_CHESTER_SERIF]: Use special version of + `ah_compute_stem_width'. + * src/autohint/ahtypes.h [FT_CONFIG_CHESTER_SMALL_F]: Add + `AH_BLUE_SMALL_F_TOP'. + +2003-01-11 David Turner + + * include/freetype/internal/fnttypes.h (WinFNT_HeaderRec): Increase + size of `reserved2' to avoid memory overwrites. + +2003-01-08 Huw Davies + + * src/winfonts/winfnt.c (winfnt_header_fields): Read 16 bytes into + `reserved2', not `reserved'. + + * src/base/ftobjs.c (find_unicode_charmap): Fixed the error code + returned when the font doesn't contain a Unicode charmap. This + allows FT2 to load `symbol.ttf' and a few others correctly since the + last release. + (open_face): Fix return value. + +2003-01-08 Owen Taylor + + Implemented the FT_RENDER_MODE_LIGHT hinting mode in the auto and + postscript hinters. + + * src/autohint/ahtypes.h (AH_HinterRec): Add `do_stem_adjust'. + * src/autohint/ahhint.c (ah_compute_stem_width): Handle + hinter->do_stem_adjust. + (ah_hinter_load_glyph): Set hinter->do_stem_adjust. + + * src/pshinter/pshalgo3.h (PSH3_GlyphRec): Add `do_stem_adjust'. + * src/pshinter/pshalgo3.c (psh3_hint_align): Use `do_stem_adjust'. + (ps3_hints_apply): Handle FT_RENDER_MODE_LIGHT. + + * include/freetype/freetype.h (FT_Render_Mode): Add + FT_RENDER_MODE_LIGHT. + + * src/truetype/ttgload.c: Fixing the TrueType loader to handle + invalid composites correctly by limiting the recursion depth. + (TT_MAX_COMPOSITE_RECURSE): New macro. + (load_truetype_glyph): Add argument `recurse_count'. + Load a composite only if the numbers of contours is -1, emit error + otherwise. + (TT_Load_Glyph): Updated. + +2003-01-08 David Turner + + * Jamrules, Jamfile, Jamfile.in, src/*/Jamfile: Small changes to + support the compilation of FreeType 2 as part of larger projects + with their own configuration options (only with Jam). + +2003-01-07 David Turner + + * src/base/ftstroker.c: Probably the last bug-fixes to the stroker; + the API is likely to change, however. + (ft_stroke_border_close): Don't record empty paths. + (ft_stroke_border_get_counts): Increase `num_points' also in for loop. + (ft_stroke_border_export): Don't increase `write' twice in for loops. + (ft_stroker_outside): Handle `phi' together with `theta'. + (FT_Stroker_ParseOutline): New function. + + * src/base/fttrigon.c (FT_Angle_Diff): Fixing function: It returned + invalid values for large negative angle differences (resulting in + incorrect stroker computations, among other things). + + * src/cache/ftccache.c (ftc_node_hash_unlink): Removing incorrect + assertion, and changing code to avoid hash table size contraction. + + * src/base/Jamfile, src/base/rules.mk, src/base/descrip.mms: Adding + `ftstroker' to default build, as optional component. + +2002-12-26 David Turner + + * src/gzip/adler32.c, src/gzip/infblock.c, src/gzip/inflate.c, + src/gzip/inftrees.c, src/gzip/zconf.h, src/gzip/zlib.h, + src/gzip/zutil.h: Updates to allow compilation without compiler + warnings with LCC-Win32. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 4. + * builds/unix/configure.ac (version_info): Increased to 9:3:3. + * builds/unix/configure: Regenerated. + * docs/VERSION.DLL: Updated. + +2002-12-23 Anthony Fok + + * builds/unix/configure.ac, builds/unix/unix-cc.in (LINK_LIBRARY), + builds/unix/unix-def.in (SYSTEM_ZLIB): Small fix to configure + sub-system on Unix to allow other programs to correctly link with + zlib when needed. + +2002-12-19 David Turner + + * include/freetype/internal/sfnt.h (SFNT_Load_Table_Func): New + function pointer. + + * include/freetype/tttables.h (FT_Load_Sfnt_Table): New function. + * src/base/ftobjs.c: Implement it. + + * src/sfnt/sfdriver.c (sfnt_get_interface): Handle `load_sfnt' + module request. + +2002-12-17 David Turner + + * src/base/ftobjs.c (find_unicode_charmap): Added some comments to + better explain what's happening there. + (open_face): Included Graham Asher's fix to prevent faces without + Unicode charmaps from loading. + + * src/winfonts/winfnt.c: Included George Williams's fix to support + version 2 fonts correctly. + (winfnt_header_fields): Updated. + (fnt_font_load): Handle version 2 fonts. + (FNT_Load_Glyph): Updated. + +2002-12-16 David Turner + + * docs/VERSION.DLL: Updating document to better explain the + differences between the three version numbers being used on Unix, as + well as providing an autoconf fragment provided by Lars Clausen. + + * src/smooth/ftgrays.c (gray_render_conic): Fixed small bug that + prevented Bézier arcs with negative vertical coordinates to be + rendered appropriately. + +2002-12-02 Antoine Leca + + * src/base/ftobjs.c: Modified the logic to get Unicode charmaps. + Now it loads UCS-4 charmaps when there is one. + (find_unicode_charmap): New function. + (open_face): Refer to the above one. + (FT_Select_Charmap): Idem. + +2002-11-29 Antoine Leca + + * include/freetype/ftgzip.h: Correct the name of the controlling + macro (was __FTXF86_H__ ...). + +2002-11-27 Vincent Caron + + * builds/unix/unix-def.in, builds/unix/freetype-config.in, + builds/unix/configure.ac, src/gzip/rules.mk, src/gzip/ftgzip.c + [FT_CONFIG_OPTION_SYSTEM_ZLIB]: Adding support for system zlib + installations if available on the target platform (Unix only). + +2002-11-23 David Turner + + * src/cff/cffload.c (cff_charset_load, cff_encoding_load): Modified + charset loader to accept pre-defined charsets, even when the font + contains fewer glyphs. Also enforced more checks to ensure that we + never overflow the character codes array in the encoding. + +2002-11-22 Antoine Leca + + * include/freetype/ttnameid.h: Updated to latest OpenType + specification. + +2002-11-18 David Turner + + + * Version 2.1.3 released. + ========================= + + +2002-11-07 David Turner + + * src/cache/ftcsbit.c (ftc_sbit_node_load): Fixed a small bug that + caused problems with embedded bitmaps. + + * src/otlayout/otlayout.h, src/otlyaout/otlconf.h, + src/otlayout/otlgsub.c, src/otlayout/otlgsub.h, + src/otlayout/otlparse.c, src/otlayout/otlparse.h, + src/otlayout/otlutils.h: Updating the OpenType Layout code, adding + support for the first GSUB lookups. Nothing that really compiles + for now though. + + * src/autohint/ahhint.c (ah_align_serif_edge): Disabled serif stem + width quantization. It produces slightly better shapes though this + is not distinguishable with many fonts. + Remove other dead code. + + * src/Jamfile, src/*/Jamfile: Simplified. + Use $(FT2_SRC_DIR). + +2002-11-06 David Turner + + * include/freetype/freetype.h (FT_LOAD_TARGET_LIGHT): New macro. + (FT_LOAD_TARGET, FT_LOAD_TARGET_MODE): Use `& 15' instead of `& 7'. + +2002-11-05 David Turner + + * include/freetype/config/ftoption.h, src/gzip/ftgzip.c: Added + support for the FT_CONFIG_OPTION_SYSTEM_ZLIB option, used to specify + the use of system-wide zlib. + + Note that this macro, as well as + TT_CONFIG_OPTION_BYTECODE_INTERPRETER, is not #undef-ed anymore. + This allows the build system to define them depending on the + configuration (typically by adding -D flags at compile time). + + * src/sfnt/ttcmap0.c (tt_face_build_cmaps): Removed compiler + warnings in optimized mode relative to the `volatile' local + variables. This was not a compiler bug after all, but the fact that + a pointer to a volatile variable is not the same as a volatile + pointer to a variable :-) + + The fix was to change + `volatile FT_Byte* p' + into + `FT_Byte* volatile p'. + + * src/pfr/pfrload.c (pfr_phy_font_load), src/pfr/pfrdrivr.c + (pfr_get_metrics), src/gzip/inftrees.c: Removed compiler warnings in + optimized modes. + + * src/gzip/*.[hc]: Modified our zlib copy in order to prevent + exporting any zlib function names outside of the component. This + prevents linking problems on some platforms, when applications want + to link FreeType _and_ zlib together. + +2002-11-05 Juliusz + + * src/psaux/psobjs.c (ps_table_add): Modified increment loop in + order to implement exponential behaviour. + +2002-11-01 David Turner + + Added PFR-specific public API. Fixed the kerning retrievel routine + (it returned invalid values when the outline and metrics resolution + differ). + + * include/freetype/ftpfr.h, include/freetype/internal/pfr.h: New + files. + + * include/freetype/internal/internal.h (FT_INTERNAL_PFR_H): New + macro for pfr.h. + + * src/base/ftpfr.c: New file. + * src/base/Jamfile, src/base/descrip.mms: Updated. + + * src/pfr/pfrdrivr.c: Include FT_INTERNAL_PFR_H. + (pfr_get_kerning, pfr_get_advance, pfr_get_metrics): New functions. + (pfr_service_rec): New format interface. + (pfr_driver_class): Use `pfr_service_rec'. + Replace `pfr_face_get_kerning' with `pfr_get_kerning'. + * src/pfr/pfrobjs.c: Remove dead code. + + * src/base/ftobjs.c (ft_glyphslot_clear): Small internal fix to + better support bitmap-based font formats. + + * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Fix handling of + `scale'. + Fix arguments to `FT_Vector_From_Polar'. + +2002-10-31 David Turner + + Add support for automatic handling of gzip-compressed PCF files. + + * src/gzip/*: New files, taken from the zlib package (except + ftgzip.c). + + * include/freetype/ftgzip.h, src/gzip/ftgzip.c: New files. + * include/freetype/config/ftheader.h (FT_GZIP_H): New macro for + `ftgzip.h'. + + * src/pcf/pcfdriver.c: Include FT_GZIP_H and FT_ERRORS_H. + (PCF_Face_Init): If normal open fails, try to open gzip stream. + (PCF_Face_Done): Close gzip stream. + + * include/freetype/internal/pcftypes.h (PCF_Public_FaceRec), + src/pcf/pcf.h (PCF_FaceRec): Add `gzip_stream' and `gzip_source'. + + * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_ZLIB): + New macro. + (T1_CONFIG_OPTION_DISABLE_HINTER, FT_CONFIG_OPTION_USE_CMAPS + FT_CONFIG_OPTION_NO_CONVENIENCE_FUNCS, + FT_CONFIG_OPTION_ALTERNATE_GLYPH_FORMATS): Removed. + + (FT_EXPORT, FT_EXPORT_DEF, FT_DEBUG_LEVEL_ERROR, + FT_DEBUG_LEVEL_TRACE, FT_DEBUG_MEMORY): Comment out definitions so + that platform specific configuration file can override. + + * include/freetype/internal/ftstream.h: Include FT_SYSTEM_H. + +2002-10-30 David Turner + + * FreeType 2.1.3rc3 released. + +2002-10-25 David Turner + + * include/freetype/ftcache.h (FT_POINTER_TO_ULONG): New macro. + (FTC_FACE_ID_HASH): Rewritten, using FT_POINTER_TO_ULONG. + +2002-10-22 Giuseppe Ghibò + + * include/freetype/freetype.h (FT_Encoding): Fix entry for latin-2. + +2002-10-07 Werner Lemberg + + * include/freetype/freetype.h (FT_Open_Face): Use `const' for `args' + (suggested by Graham). + * src/base/ftobjs.c (FT_Open_Face): Updated. + (ft_input_stream_new): Ditto. + +2002-10-05 David Turner + + Adding support for embedded bitmaps to the PFR driver, and rewriting + its kerning loader/handler to use all kerning pairs in a physical + font (and not just the first item). + + * src/pfr/pfr.c: Include `pfrsbit.c'. + * src/pfr/pfrgload.c: Include `pfrsbit.h'. + * src/pfr/pfrload.c (pfr_extra_item_load_kerning_pairs): Rewritten. + (pfr_phy_font_done, pfr_phy_font_load): Updated. + * src/pfr/pfrobks.c: Include `pfrsbit.h'. + (pfr_face_init): Handle kerning and embedded bitmaps. + (pfr_slot_load): Load embedded bitmaps. + (PFR_KERN_INDEX): Removed. + (pfr_face_get_kerning): Rewritten. + * src/pfr/pfrsbit.c, src/pfr/pfrsbit.h: New files. + * src/pfr/pfrtypes.h (PFR_KernItemRec): New structure. + (PFR_KERN_INDEX): New macro. + (PFR_PhyFontRec): Add items for kerning and embedded bitmaps. + * src/pfr/Jamfile (_sources) [FT2_MULTI]: Add `pfrsbit'. + + * src/base/ftobjs.c (FT_Load_Glyph): Don't load bitmap fonts if + FT_LOAD_NO_RECURSE is set. + Load embedded bitmaps only if FT_LOAD_NO_BITMAP isn't set. + + * src/tools/docmaker/content.py, src/tools/docmaker/sources.py, + src/tools/docmaker/tohtml.py: Fixing a few nasty bugs. + + * src/sfnt/ttcmap0.c (tt_cmap4_validate): The validator for format 4 + sub-tables is now capable of dealing with invalid `length' fields at + the start of the sub-table. This allows fonts like `mg______.ttf' + (i.e. Marriage) to return accurate charmaps. + + * docs/CHANGES: Updated. + +2002-10-05 Werner Lemberg + + * src/smooth/ftgrays.c (SUBPIXELS): Add cast to `TPos'. + Update all callers. + (TRUNC): Add cast to `TCoord'. + Update all callers. + (TRaster): Use `TPos' for min_ex, max_ex, min_ey, max_ey, and + last_ey. + Update all casts. + (gray_render_line): Fix casts for `p' and `first'. + +2002-10-02 Detlef Würkner + + * src/bdf/bdflib.c (bdf_load_font): Allocate the _bdf_parse_t + structure with FT_ALLOC instead of using the stack. + +2002-09-27 Werner Lemberg + + * src/include/freetype/internal/tttypes.h (num_sbit_strikes, + num_sbit_scales): Use `FT_ULong'. + * src/sfnt/sfobjs.c (sfnt_load_face): Updated accordingly. + * src/sfnt/ttsbit.c (tt_face_set_sbit_strike): Ditto. + (find_sbit_image): Remove cast. + * src/raster/ftrend1.c (ft_raster1_render): Fix cast. + +2002-09-27 Wolfgang Domröse + + * src/sfnt/ttload.c (tt_face_load_names): Use cast. + * src/sfnt/ttcmap.c (code_to_next2): Use long constant. + (code_to_index4): Use cast. + (code_to_index8_12): Fix cast. + * src/sfnt/ttcmap0.c (tt_cmap4_char_next, tt_cmap8_char_index, + tt_cmap12_char_index): Use cast for `result'. + (tt_face_build_cmaps): Use cast. + * src/sfnt/sfobjs.c (tt_name_entry_ascii_from_ucs4): Use cast for + `code'. + (sfnt_load_face): Use FT_Int32 for `flags'. + + * src/smooth/ftgrays.c (gray_render_scanline, gray_render_line, + gray_compute_cbox, gray_convert_glyph, gray_raster_reset): Add casts + to `TCoord' and `int'. + More 16bit fixes. + s/FT_Pos/TPos/. + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Add casts. + +2002-09-26 Werner Lemberg + + * src/sfnt/ttpost.c (load_post_names, tt_face_free_ps_names, + tt_face_get_ps_name): Replace switch statement with if clauses to + make it more portable. + + * src/cff/cffobjs.c (cff_face_init): Ditto. + + * include/freetype/ftmodule.h (FT_Module_Class): Use `FT_Long' for + `module_size'. + * include/freetype/ftrender.h (FT_Glyph_Class_): Use `FT_Long' for + `glyph_size'. + + * src/base/ftobjs.c (FT_Render_Glyph): Change second parameter to + `FT_Render_Mode'. + (FT_Render_Glyph_Internal): Change third parameter to + `FT_Render_Mode'. + * src/base/ftglyph.c (FT_Glyph_To_Bitmap): Change second parameter + to `FT_Render_Mode'. + + * src/raster/ftrend1.c (ft_raster1_render): Change third parameter + to `FT_Render_Mode'. + * src/smooth/ftsmooth.c (ft_smooth_render, ft_smooth_render_lcd, + ft_smooth_render_lcd_v): Ditto. + (ft_smooth_render_generic): Change third and fifth parameter to + `FT_Render_Mode'. + + * include/freetype/freetype.h, include/freetype/internal/ftobjs.h, + include/freetype/ftglyph.h: Updated. + + * src/cff/cffdrivr.c (Load_Glyph), src/pcf/pcfdriver.c + (PCF_Glyph_Load), src/pfr/pfrobjs.c (pfr_slot_load), + src/winfonts/winfnt.c (FNT_Load_Glyph), src/t42/t42objs.c + (T42_GlyphSlot_Load), src/bdf/bdfdrivr.c (BDF_Glyph_Load): Change + fourth parameter to `FT_Int32'. + + * src/pfr/pfrobjs.c (pfr_face_init): Add two missing parameters + and declare them as unused. + + * src/cid/cidparse.h (CID_Parser): Use FT_Long for `postscript_len'. + + * src/psnames/psnames.h (PS_Unicode_Value_Func): Change return + value to FT_UInt32. + * src/psnames/psmodule.c (ps_unicode_value, ps_build_unicode_table): + Updated accordingly. + +2002-09-26 Wolfgang Domröse + + * src/cff/cffdrivr.c (Get_Kerning): Use FT_Long for `middle'. + (cff_get_glyph_name): Use cast for result of ft_strlen. + * src/cff/cffparse.c (cff_parse_real): User cast for assigning + `exp'. + * src/cff/cffload.c (cff_index_get_pointers): Use FT_ULong for + some local variables. + (cff_charset_load, cff_encoding_load): Use casts to FT_UInt for some + switch statements. + (cff_font_load): Use cast in call to CFF_Load_FD_Select. + * src/cff/cffobjs.c (cff_size_init): Use more casts. + (cff_face_init): Use FT_Int32 for `flags'. + * src/cff/cffgload.c (cff_operator_seac): Use cast for assigning + `adx' and `ady'. + (cff_decoder_parse_charstrings): Use FT_ULong for third parameter. + Use more casts. + * src/cff/cffcmap.c (cff_cmap_unicode_init): Use cast for `count'. + + * src/cid/cidload.c (cid_read_subrs): Use FT_ULong for `len'. + * src/cid/cidgload.c (cid_load_glyph): Add missing cast for + `cid_get_offset'. + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings) <18>: Use + cast for `num_points'. + (t1_decoder_init): Use cast for assigning `decoder->num_glyphs'. + + * src/base/ftdebug.c (ft_debug_init): Use FT_Int. + * include/freetype/internal/ftdriver.h (FT_Slot_LoadFunc): Use + `FT_Int32' for fourth parameter. + * src/base/ftobjs.c (open_face): Use cast for calling + clazz->init_face. + + * src/raster/ftraster.c (Set_High_Precision): Use `1' instead of + `1L'. + (Finalize_Profile_Table, Line_Up, ft_black_init): Use casts. + * src/raster/ftrend1.c (ft_raster1_render): Ditto. + + * src/sfnt/sfnt_dir_check: Compare `magic' with unsigned long + constant. + +2002-09-26 Detlef Würkner + + * builds/amiga/include/freetype/config/ftmodule.h: Updated. + +2002-09-25 David Turner + + * src/autohint/ahtypes.h (AH_HINT_METRICS): Disabling metrics + hinting in the auto-hinter. This produces much better anti-aliased + text. + + * docs/CHANGES: Updating the changes documentation. + +2002-09-25 Anthony Fok + + * src/sfnt/ttcmap0.c (tt_cmap4_validate, tt_cmap4_char_index, + tt_cmap4_char_next): Added support for opens___.ttf (it contains a + charmap that uses offset=0xFFFFU instead of 0x0000 to indicate a + missing glyph). + +2002-09-21 Wolfgang Domröse + + * src/truetype/ttdriver.c (Load_Glyph): Fourth parameter must be + FT_Int32. + * src/truetype/ttgload.c, src/truetype/ttgload.h (TT_Load_Glyph): + Ditto. + +2002-09-19 Wolfgang Domröse + + More 16bit fixes. + + * src/autohint/ahglobal.c (sort_values): Use FT_Pos for `swap'. + (ah_hinter_compute_widths): Use FT_Pos for `dist'. + Use AH_MAX_WIDTHS. + * src/autohint/ahglyph.c (ah_outline_scale_blue_edges): Use FT_Pos + for `delta'. + (ah_outline_compute_edges): Replace some ints with FT_Int and + FT_Pos. + (ah_test_extrema): Clean up code. + (ah_get_orientation): Use 4 FT_Int variables instead of FT_BBox to + hold indices. + * src/autohint/ahtypes.h (AH_SegmentRec): Change type of `score' + to FT_Pos. + +2002-09-19 Werner Lemberg + + * builds/unix/config.guess, builds/unix/config.sub: Updated to + recent versions. + +2002-09-18 David Turner + + * src/base/ftobjs.c (FT_Library_Version): Bugfix. + + * FreeType 2.1.3rc2 (release candidate 2) is released! + +2002-09-17 David Turner + + * include/freetype/freetype.h, include/freetype/ftimage.h, + include/freetype/ftstroker.h, include/freetype/ftsysio.h, + include/freetype/ftsysmem.h, include/freetype/ttnameid.h: Updating + the in-source documentation. + + * src/tools/docmaker/tohtml.py: Updating the HTML formatter in the + DocMaker tool. + + * src/tools/docmaker.py: Removed. + +2002-09-17 Werner Lemberg + + More 16bit fixes. + + * src/psaux/psobjs.c (reallocate_t1_table): Use FT_Long for + second parameter. + +2002-09-16 Werner Lemberg + + 16bit fixes from Wolfgang Domröse. + + * src/type1/t1parse.h (T1_ParserRec): Change type of `base_len' + and `private_len' to FT_Long. + * src/type1/t1parse.c (T1_Get_Private_Dict): Remove cast for + `private_len'. + * src/type1/t1load.c: Use FT_Int cast for most calls of T1_ToInt. + Use FT_PtrDist where appropriate. + (parse_encoding): Use FT_Long for `count' and `n'. + (read_binary_data): Use FT_Long* for second parameter. + * src/type1/t1afm.c (afm_atoindex): Use FT_PtrDist. + + * src/cache/ftcsbits.c (ftc_sbit_node_load): Remove unused label. + * src/pshinter/pshalgo3.c (psh3_hint_align): Remove unused variable. + +2002-09-14 Werner Lemberg + + Making ftgrays.c compile stand-alone again. + + * include/freetype/ftimage.h: Include ft2build.h only if _STANDALONE_ + isn't defined. + * src/smooth/ftgrays.c [_STANDALONE_]: Define ft_memset, + FT_BEGIN_HEADER, FT_END_HEADER. + (FT_MEM_ZERO): Define. + (TRaster) [GRAYS_USE_GAMMA]: Use `unsigned char' instead of FT_Byte. + (gray_render_span, gray_init_gamma): Don't use `FT_UInt'. + Don't cast with `FT_Byte'. + (grays_init_gamma): Don't use `FT_UInt'. + +2002-09-14 Werner Lemberg + + * src/base/ftinit.c (FT_Add_Default_Modules): Improve error message. + * src/pcf/pcfdriver.c (PCF_Face_Done): Improve tracing message. + * include/freetype/config/ftoption.h (FT_MAX_MODULES): Increased + to 32. + +2002-09-10 Werner Lemberg + + * builds/unix/configure.ac (version_info): Set to 9:2:3. + * builds/unix/configure: Regenerated. + * docs/VERSION.DLL: Updated. + +2002-09-09 David Turner + + * src/pshinter/pshalgo2.c (psh2_glyph_find_strong_points), + src/pshinter/pshalgo3.c (psh3_glyph_find_strong_points): Adding fix + to prevent seg fault when hints are provided in an empty glyph. + + * src/cache/ftccache.i (GEN_CACHE_LOOKUP) [FT_DEBUG_LEVEL_ERROR]: + Removed conditional code. This fixes a bug that prevented + compilation in debug mode of template instantiation. + + * include/freetype/ftimage.h: Removed incorrect `zft_' definitions + and updated constants documentation comments. + + * src/cff/cffparse.c (cff_parser_run): Fixed the CFF table loader. + It didn't accept empty arrays, and this prevented the loading of + certain fonts. + + * include/freetype/freetype.h (FT_FaceRec): Updating documentation + comment. The `descender' value is always *negative*, not positive. + +2002-09-09 Owen Taylor + + * src/pcf/pcfdriver.c (PCF_Glyph_Load): Fixing incorrect computation + of bitmap metrics. + +2002-09-08 David Turner + + Various updates to correctly support sub-pixel rendering. + + * include/freetype/config/ftmodule.h: Add two renderers for LCD. + + * src/base/ftobjs.c (FT_Load_Glyph): Updated. + + * src/smooth/ftsmooth.c (ft_smooth_render_lcd, + ft_smooth_render_lcd_v): Set FT_PIXEL_MODE_LCD and + FT_PIXEL_MODE_LCD_V, respectively. + + * include/freetype/cache/ftcimage.h (FTC_ImageTypeRec): New + structure. + Updated all users. + (FTC_ImageDesc): Removed. + (FTC_ImageCache_Lookup): Second parameter is now of type + `FTC_ImageType'. + Updated all users. + (FTC_IMAGE_DESC_COMPARE): Updated and renamed to... + (FTC_IMAGE_TYPE_COMPARE): This. + (FTC_IMAGE_DESC_HASH): Updated and renamed to... + (FTC_IMAGE_TYPE_HASH): This. + + * include/freetype/cache/ftcsbits.h (FTC_SBitRec): Field `num_grays' + replaced with `max_grays'. + `pitch' is now FT_Short. + (FTC_SBitCache_Lookup): Second parameter is now of type + `FTC_ImageType'. + Updated all users. + + * src/cache/ftcimage.c (FTC_ImageQueryRec, FTC_ImageFamilyRec): + Updated. + (ftc_image_node_init): Updated. + Moved code to convert type flags to load flags to... + (FTC_Image_Cache_Lookup): This function. + (ftc_image_family_init): Updated. + + * src/cache/ftcsbit.c (FTC_SBitQueryRec, FTC_SBitFamilyRec): + Updated. + (ftc_sbit_node_load): Updated. + Moved code to convert type flags to load flags to... + (FTC_SBitCache_Lookup): This function. + + * src/autohint/ahtypes.h (AH_HinterRec): Replace `no_*_hints' with + `do_*_snapping'. + Update all users (with negation). + * src/autohint/ahhint.c (ah_compute_stem_width): Fix threshold for + `dist' for `delta' < 40. + + * src/pshinter/pshalgo3.h (PSH3_GlyphRec): Replace `no_*_hints' with + `do_*_snapping'. + Update all users (with negation). + * src/pshinter/pshalgo3.c (psh3_dimension_quantize_len): New + function. + (psh3_hint_align): Use it. + Improve hinting code. + [STRONGER]: Removed. + (STRONGER): Removed. + + * include/freetype/freetype.h (FT_Set_Hint_Flags, FT_HINT_*): + Removed. + +2002-09-05 Werner Lemberg + + * src/cid/cidobjs.c (CID_Size_Init): Renamed to... + (cid_size_init): This. + * src/psaux/psobjs.c (T1_Builder_Add_Point1): Renamed to... + (t1_builder_add_point1): This. + + Updated all affected code. + + * src/pshinter/pshalgo3.c (psh3_hint_align): Fix compiler warnings. + * src/type1/t1gload.c (T1_Compute_Max_Advance): Ditto. + +2002-09-04 David Turner + + * include/freetype/freetype.h: Corrected the definition of + ft_encoding_symbol to be FT_ENCODING_MS_SYMBOL (instead of + the erroneous FT_ENCODING_SYMBOL). + + * builds/unix/unix-def.in (datadir): Initialize it (thanks to + Anthony Fok). + +2002-08-29 David Turner + + Slight modification to the Postscript hinter to slightly increase + the contrast of smooth hinting. This is very similar to what the + auto-hinter does when it comes to stem width computations. However, + it produces better results with well-hinted fonts. + + * include/freetype/internal/psaux.h (T1_Decoder_FuncsRec): Add hint + mode to `init' member function. + (T1_DecoderRec): Add hint mode. + * include/freetype/internal/pshints (T1_Hints_ApplyFunc, + T2_Hints_ApplyFunc): Pass `hint_mode', not `hint_flags'. + * src/psaux/t1decode.c (t1_decoder_init): Add hint mode argument. + * src/pshinter/pshalgo1.c (ps1_hints_apply): Pass hint mode, not + hint flags. + * src/pshinter/pshalgo2.c (ps2_hints_apply): Ditto. + * src/pshinter/pshalgo3.c (ps3_hints_apply): Ditto. + (STRONGER): New macro. + (psh3_hint_align, psh3_hint_table_align_hints): Pass `glyph' instead + of `hint_flags'. + Implement announced changes. + * src/pshinter/pshalgo3.h (PSH3_GlyphRec): Add flags to control + vertical and horizontal hints and snapping. + + * README, docs/CHANGES: Updating for the 2.1.3 release. + +2002-08-27 David Turner + + * Massive re-formatting changes to many, many source files. I don't + want to list them all here. The operations performed were all + logical transformations of the sources: + + - trying to convert all enums and constants to CAPITALIZED_STYLE, + #with define definitions like + + #define my_old_constants MY_NEW_CONSTANT + + - big, big update of the documentation comments + + * include/freetype/freetype.h, src/base/ftobjs.c, + src/smooth/ftsmooth.c, include/freetype/ftimage.h: Adding support + for LCD-optimized rendering though the new constants/enums: + + FT_RENDER_MODE_LCD, FT_RENDER_MODE_LCD_V + FT_PIXEL_MODE_LCD, FT_PIXEL_MODE_LCD_V + + This is still work in progress, don't expect everything to work + correctly though most of the features have been implemented. + + * Adding new FT_LOAD_XXX flags, used to specify both hinting and + rendering targets: + + FT_LOAD_TARGET_NORMAL :: anti-aliased hinting & rendering + FT_LOAD_TARGET_MONO :: monochrome bitmaps + FT_LOAD_TARGET_LCD :: horizontal RGB/BGR decimated + hinting & rendering + FT_LOAD_TARGET_LCD_V :: vertical RGB/BGR decimated + hinting & rendering + + Note that FT_LOAD_TARGET_NORMAL is 0, which means that the default + behaviour of the font engine is _unchanged_. + + * include/freetype/ftimage.h + (FT_Outline_{Move,Line,Conic,Cubic}To_Func): Renamed to... + (FT_Outline_{Move,Line,Conic,Cubic}ToFunc): This. + (FT_Raster_Span_Func): Renamed to ... + (FT_SpanFunc): This. + (FT_Raster_{New,Done,Reset,Set_Mode,Render}_Func): Renamed to ... + (FT_Raster_{New,Done,Reset,SetMode,Render}Func}: This. + + Updated all affected code. + + * include/freetype/ftrender.h + (FT_Glyph_{Init,Done,Transform,BBox,Copy,Prepare}_Func): Renamed + to ... + (FT_Glyph_{Init,Done,Transform,GetBBox,Copy,Prepare}Func): This. + (FTRenderer_{render,transform,getCBox,setMode}): Renamed to ... + (FT_Renderer_{RenderFunc,TransformFunc,GetCBoxFunc,SeteModeFunc}): + This. + + Updated all affected code. + + * src/autohint/ahtypes.h (AH_Point, AH_Segment, AH_Edge, AH_Globals, + AH_Face_Globals, AH_Outline, AH_Hinter): These typedefs are now + pointers to the corresponding `*Rec' structures. All source files + have been updated accordingly. + + * src/cff/cffgload.c (cff_decoder_init): Add hint mode as parameter. + * src/cff/cffgload.h (CFF_Decoder): Add `hint_mode' element. + + * src/cid/cidgload.c (CID_Compute_Max_Advance): Renamed to... + (cid_face_compute_max_advance): This. + (CID_Load_Glyph): Renamed to... + (cid_slot_load_glyph): This. + * src/cid/cidload.c (CID_Open_Face): Renamed to... + (cid_face_open): This. + * src/cid/cidobjs.c (CID_GlyphSlot_{Done,Init}): Renamed to... + (cid_slot_{done,init}): This. + (CID_Size_{Get_Globals_Funcs,Done,Reset): Renamed to... + (cid_size_{get_globals_funcs,done,reset): This. + (CID_Face_{Done,Init}): Renamed to... + (cid_face_{done,init}): This. + (CID_Driver_{Done,Init}: Renamed to... + (cid_driver_{done,init}: This. + * src/cid/cidparse.c (CID_{New,Done}_Parser): Renamed to... + (cid_parser_{new,done}): This. + * src/cid/cidparse.h (CID_Skip_{Spaces,Alpha}): Renamed to... + (cid_parser_skip_{spaces,alpha}): This. + (CID_To{Int,Fixed,CoordArray,FixedArray,Token,TokenArray}): Renamed + to... + (cid_parser_to_{int,fixed,coord_array,fixed_array,token,token_array}): + This. + (CID_Load_{Field,Field_Table): Renamed to... + (cid_parser_load_{field,field_table}): This. + * src/cid/cidriver.c (CID_Get_Interface): Renamed to... + (cid_get_interface): This. + + Updated all affected code. + + * src/psaux/psobjs.c (PS_Table_*): Renamed to... + (ps_table_*): This. + (T1_Builder_*): Renamed to... + (t1_builder_*): This. + * src/psaux/t1decode.c (T1_Decoder_*): Renamed to... + (t1_decoder_*): This. + + * src/psnames/psmodule.c (PS_*): Renamed to... + (ps_*): This. + + Updated all affected code. + + * src/sfnt/sfdriver (SFNT_Get_Interface): Renamed to... + (sfnt_get_interface): This. + * src/sfnt/sfobjs.c (SFNT_*): Renamed to... + (sfnt_*): This. + * src/sfnt/ttcmap.c (TT_CharMap_{Load,Free}): Renamed to... + (tt_face_{load,free}_charmap): This. + * src/sfnt/ttcmap0.c (TT_Build_CMaps): Renamed to... + (tt_face_build_cmaps): This. + * src/sfnt/ttload.c (TT_*): Renamed to... + (tt_face_*): This. + * src/sfnt/ttpost.c (TT_Post_Default_Names): Renamed to... + (tt_post_default_names): This. + (Load_*): Renamed to... + (load_*): This. + (TT_*): Renamed to... + (tt_face_*): This. + * src/sfnt/ttsbit.c (TT_*): Renamed to... + (tt_face_*): This. + ({Find,Load,Crop}_*): Renamed to... + ({find,load,crop}_*): This. + + Updated all affected code. + + * src/smooth/ftsmooth.c (ft_smooth_render): Renamed to... + (ft_smooth_render_generic): This. + Make function more generic by adding vertical and horizontal scaling + factors. + (ft_smooth_render, ft_smooth_render_lcd, ft_smooth_render_lcd_v): + New functions. + + (ft_smooth_locd_renderer_class, ft_smooth_lcdv_renderer_class): New + classes. + + * src/truetype/ttobjs.c (TT_{Done,New}_GlyphZone): Renamed to... + (tt_glyphzone_{done,new}): This. + (TT_{Face,Size,Driver}_*): Renamed to... + (tt_{face,size,driver}_*): This. + * src/truetype/ttpload.c (TT_Load_Locations): Renamed to... + (tt_face_load_loca): This. + (TT_Load_Programs): Renamed to... + (tt_face_load_fpgm): This. + (TT_*): Renamed to... + (tt_face_*): This. + +2002-08-27 Werner Lemberg + + * docs/VERSION.DLL: New file. + +2002-08-23 Graham Asher + + * src/cff/cffgload.c (cff_operator_seac) + [FT_CONFIG_OPTION_INCREMENTAL]: Incremental fonts (actually not + incremental in the case of CFF but just using callbacks to get glyph + recipes) pass the character code, not the glyph index, to the + get_glyph_data function; they have no valid charset table. + + * src/cff/cffload.c (cff_font_load): Removed special cases for + FT_CONFIG_OPTION_INCREMENTAL, which are no longer necessary; CFF + fonts provided via the incremental interface now have to conform + more closely to the CFF font format. + + * src/cff/cffload.h (cff_font_load): Removed argument now unneeded. + + * src/cff/cffobjs.c (cff_face_init): Changed call to cff_font_load + to conform with new signature. + +2002-08-22 David Turner + + * src/base/ftobject.c, src/base/ftsynth.c, src/base/ftstroker.c, + src/bdf/bdfdrivr.c: Removed compiler warnings. + +2002-08-21 Werner Lemberg + + * src/pshinter/pshalgo3.c (psh3_glyph_compute_inflections, + psh3_glyph_compute_extrema, psh3_hint_table_find_strong_point): Fix + compiler warnings and resolve shadowing of local variables. + +2002-08-21 David Turner + + The automatic and Postscript hinter now automatically detect + inflection points in glyph outlines and treats them specially. This + is very useful to prevent nasty effect like the disappearing + diagonals of `S' and `s' in many, many fonts. + + * src/autohint/ahtypes.h (ah_flag_inflection): New macro. + * src/autohint/ahangles.c (ah_angle_diff): New function. + * src/autohint/ahangles.h: Updated. + * src/autohint/ahglyph.c (ah_outline_compute_inflections): New + function. + (ah_outline_detect_features): Use it. + * src/autohint/ahhint.c (ah_hinter_align_strong_points) + [!AH_OPTION_NO_WEAK_INTERPOLATION]: Handle inflection. + + * src/tools/docmaker/docmaker.py, src/tools/docmaker/utils.py, + src/tools/docmaker/tohtml.py: Updating the DocMaker tool. + + * include/freetype/freetype.h: Changing the type of the `load_flags' + parameter from `FT_Int' to `FT_Int32', this in order to support more + options. This should only break binary and/or source compatibility + on 16-bit platforms (Atari?). + (FT_LOAD_NO_AUTOHINT): New macro. + + * src/base/ftobjs.c (FT_Load_Glyph): Updated. + Handle FT_LOAD_NO_AUTOHINT. + (FT_Load_Char): Updated. + + * src/pshinter/pshalgo3.c, src/base/ftobjs.c, src/base/ftobject.c, + src/autohint/ahglyph.c, include/freetype/freetype.h: Fixing typos + and removing compiler warnings. + +2002-08-20 Werner Lemberg + + * src/truetype/ttgload.c (TT_Get_Metrics): Add guard for k = 0. + +2002-08-20 David Turner + + * src/pshinter/pshalgo1.c, src/pshinter/pshalgo2.c, + src/pshinter/pshglob.c, src/pshinter/pshrec.c, + src/autohint/ahmodule.c [DEBUG_HINTER]: Removing compiler warnings + (only used in development builds anyway). + + Improve support of local extrema and stem edge points. + + * src/pshinter/pshalgo3.h (PSH3_Hint_TableRec): Use PSH3_ZoneRec + for `zones'. + (PSH3_DIR_UP, PSH3_DIR_DOWN): Exchange values. + (PSH3_DIR_HORIZONTAL, PSH3_DIR_VERTICAL): New macros. + (PSH3_DIR_COMPARE, PSH3_DIR_IS_HORIZONTAL, PSH3_IS_VERTICAL): New + macros. + (PSH3_POINT_INFLEX): New enum. + (psh3_point_{is,set}_{off,inflex}): New macros. + (PSH3_POINT_{EXTREMUM,POSITIVE,NEGATIVE,EDGE_MIN,EDGE_MAX): New + enum values. + (psh3_point_{is,set}_{extremum,positive,negative,edge_min,edge_max}): + New macros. + (PSH3_PointRec): New members `flags2' and `org_v'. + (PSH3_POINT_EQUAL_ARG, PSH3_POINT_ANGLE): New macros. + + * src/pshinter/pshalgo3.c [DEBUG_HINTER]: Removing compiler + warnings. + (COMPUTE_INFLEXS): New macro. + (psh3_hint_align): Simplify some basic arithmetic computations. + (psh3_point_is_extremum): Removed. + (psh3_glyph_compute_inflections) [COMPUTE_INFLEXS]: New function. + (psh3_glyph_init) [COMPUTE_INFLEXS]: Use it. + (psh3_glyph_compute_extrema): New function. + (PSH3_STRONG_THRESHOLD): Increased to 30. + (psh3_hint_table_find_strong_point): Improved. + (psh3_glyph_find_strong_points, + psh3_glyph_interpolate_strong_points): Updated. + (psh3_hints_apply): Use psh3_glyph_compute_extrema. + + * test/gview.c (draw_ps3_hint, ps3_draw_control_points): New + functions. + Other small updates. + + * Jamfile: Small updates. + +2002-08-18 Arkadiusz Miskiewicz + + * builds/unix/install.mk (install, uninstall): Add $(DESTDIR) to + make life easier for package maintainers. + +2002-08-18 Werner Lemberg + + * src/pcf/pcfdriver.c (PCF_Glyph_Load): Fix computation of + horiBearingX. + * src/bdf/bdfdrivr.c (BDF_GlyphLoad): Fix computation of + horiBearingY. + +2002-08-16 George Williams + + Add support for Apple composite glyphs. + + * include/freetype/config/ftoption.h + (TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED): New macro. + + * src/truetype/ttgload.c (OVERLAP_COMPOUND, SCALED_COMPONENT_OFFSET, + UNSCALED_COMPONENT_OFFSET): New macros for additional OpenType + glyph loading flags. + (load_truetype_glyph): Implement it. + +2002-08-16 Werner Lemberg + + * src/cff/cffgload.c (cff_free_glyph_data), + src/cff/cffload.c (cff_font_load): Use FT_UNUSED. + +2002-08-15 Werner Lemberg + + * src/base/ftglyph.c (FT_Glyph_To_Bitmap): Initialize `error'. + * src/sfnt/sfobjs.c (SFNT_Load_Face): Fix compiler warning. + +2002-08-15 Graham Asher + + Implemented the incremental font loading system for the CFF driver. + Tested using the GhostScript-to-FreeType bridge (under development). + + * src/cff/cffgload.c (cff_get_glyph_data, cff_free_glyph_data): New + functions. + (cff_operator_seac, cff_compute_max_advance, cff_slot_load): Use + them. + * src/cff/cffload.c (cff_font_load): Add `face' parameter. + Load charset and encoding only if there are glyphs. + [FT_CONFIG_OPTION_INCREMENTAL]: Incremental fonts don't need + character recipes. + * src/cff/cffload.h, src/cff/cffobjs.c: Updated. + + * src/cid/cidgload.c (cid_load_glyph) + [FT_CONFIG_OPTION_INCREMENTAL]: Corrected the incremental font + loading implementation to use the new system introduced on + 2002-08-01. + +2002-08-06 Werner Lemberg + + * src/cff/cffcmap.c: Remove compiler warnings. + * src/cache/ftccache.c, src/cache/ftccache.i, + src/pfr/pfrload.c, src/pfr/pfrgload.c: s/index/idx/. + * src/cff/cffload.c: s/select/fdselect/. + * src/raster/ftraster.c: s/wait/waiting/. + +2002-08-01 Graham Asher + + * src/type1/t1load.c (T1_Open_Face): Tolerate a face with no + charstrings if there is an incremental loading interface. Type 1 + faces supplied by PostScript interpreters like GhostScript will + typically not provide any charstrings at load time, so this is + essential if they are to work. + +2002-08-01 Graham Asher + + Modified incremental loading interface to be closer to David's + preferences. The header freetype.h is not now affected, the + interface is specified via an FT_Parameter, the pointer to the + interface is hidden in an internal part of the face record, and all + the definitions are in ftincrem.h. + + * include/freetype/freetype.h [FT_CONFIG_OPTION_INCREMENTAL]: + Removed. + * include/freetype/internal/ftobjs.h [FT_CONFIG_OPTION_INCREMENTAL]: + Include FT_INCREMENTAL_H. + (FT_Face_InternalRec) [FT_CONFIG_OPTION_INCREMENTAL]: Add + `incremental_interface'. + + * src/base/ftobjs.c (open_face, FT_Open_Face) + [FT_CONFIG_OPTION_INCREMENTAL]: Updated. + * src/sfnt/sfobjs.c (SFNT_Load_Face) [FT_CONFIG_OPTION_INCREMENTAL]: + Updated. + + * src/truetype/ttgload.c (load_truetype_glyph) + [FT_CONFIG_OPTION_INCREMENTAL]: Updated. + Free loaded glyph data properly. + (compute_glyph_metrics, TT_Load_Glyph) + [FT_CONFIG_OPTION_INCREMENTAL]: Updated. + * src/truetype/ttobjs.c (TT_Face_Init) + [FT_CONFIG_OPTION_INCREMENTAL]: Updated. + + * src/type1/t1gload.c (T1_Parse_Glyph_And_Get_Char_String) + [FT_CONFIG_OPTION_INCREMENTAL]: Updated. + (T1_Parse_Glyph) [FT_CONFIG_OPTION_INCREMENTAL]: Updated. + Free loaded glyph data properly. + (T1_Load_Glyph): Updated. + [FT_CONFIG_OPTION_INCREMENTAL]: Free loaded glyph data properly. + +2002-07-30 David Turner + + * include/freetype/ftincrem.h: Adding new experimental header file + to demonstrate a `cleaner' API to support incremental font loading. + + * include/freetype/config/ftheader.h (FT_INCREMENTAL_H): New macro. + + * src/tools/docmaker/*: Adding new (more advanced) version of + the DocMaker tool, using Python's sophisticated regexps. + +2002-07-28 Werner Lemberg + + s/ft_memset/FT_MEM_SET/. + s/FT_MEM_SET/FT_MEM_ZERO/ where appropriate. + +2002-07-27 Werner Lemberg + + * src/sfnt/ttload.c (sfnt_dir_check): Make it work with TTCs. + +2002-07-26 Werner Lemberg + + * src/truetype/ttgload.c (load_truetype_glyph) + [FT_CONFIG_OPTION_INCREMENTAL]: s/memset/ft_memset/. + + * src/autohint/ahhint.c (ah_hint_edges_3): Fix compiler warning. + * src/cff/cffload.c (cff_encoding_load): Remove `memory' variable. + * src/cff/cffcmap.c (cff_cmap_encoding_init): Remove `psnames' + variable. + * src/truetype/ttgload.c (load_truetype_glyph): Remove statement + without effect. + * src/truetype/ttdriver (Get_Char_Index, Get_Next_Char): Removed. + + * src/pshinter/pshalgo3.c (psh3_hint_table_record, + psh3_hint_table_init, psh3_hint_table_activate_mask): Fix error + message. + +2002-07-24 Graham Asher + + * src/truetype/ttobjs.c: Fix for bug reported by Sven Neumann + [sven@gimp.org] on the FreeType development forum: `If + FT_CONFIG_OPTION_INCREMENTAL is undefined (this is the default), the + TrueType loader crashes in line 852 of src/truetype/ttgload.c when + it tries to access face->glyph_locations.' + +2002-07-18 Graham Asher + + Added types and structures to support incremental typeface loading. + The FT_Incremental_Interface structure, defined in freetype.h, is + designed to be passed to FT_Open_Face to provide callback functions + to obtain glyph recipes and metrics, for fonts like those passed + from PostScript that do not necessarily provide all, or any, glyph + information, when first opened. + + * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_INCREMENTAL): + New configuration macro to enable incremental face loading. By + default it is not defined. + + * include/freetype/freetype.h (FT_Basic_Glyph_Metrics, + FT_Get_Glyph_Data_Func, FT_Get_Glyph_Metrics_Func, + FT_Incremental_Interface_Funcs, FT_Incremental_Interface) + [FT_CONFIG_OPTION_INCREMENTAL]: New. + (FT_Open_Args, FT_FaceRec) [FT_CONFIG_OPTION_INCREMENTAL]: New field + `incremental_interface'. + (FT_Open_Flags) [FT_CONFIG_OPTION_INCREMENTAL]: New enum + `ft_open_incremental'. + + * include/freetype/fttypes.h: Include FT_CONFIG_CONFIG_H. + (FT_Data): New structure to represent binary data. + + * src/base/ftobjs.c (open_face) [FT_CONFIG_OPTION_INCREMENTAL]: + Add parameter for incremental loading. + (FT_Open_Face) [FT_CONFIG_OPTION_INCREMENTAL]: Use incremental + interface. + + * src/truetype/ttgload.c (load_truetype_glyph) + [FT_CONFIG_OPTION_INCREMENTAL]: Added the incremental loading system + for the TrueType driver. + (compute_glyph_metrics): Return FT_Error. + [FT_CONFIG_OPTION_INCREMENTAL]: Check for overriding metrics. + (TT_Load_Glyph) [FT_CONFIG_OPTION_INCREMENTAL]: Don't look for + the glyph table while handling an incremental font. + Get glyph offset. + + * src/truetype/ttobjs.c (TT_Face_Init) + [FT_CONFIG_OPTION_INCOREMENTAL]: Added the incremental loading + system for the TrueType driver. + + * src/cid/cidgload.c (cid_load_glyph) + [FT_CONFIG_OPTION_INCREMENTAL]: Added the incremental loading system + for the CID driver. + + * src/sfnt/sfobjs.c (SFNT_Load_Face) [FT_CONFIG_OPTION_INCREMENTAL]: + Changes to support incremental Type 42 fonts: Assume a font has + glyphs if it has an incremental interface object. + + * src/type1/t1gload.c (T1_Parse_Glyph): Renamed to... + (T1_Parse_Glyph_And_Get_Char_String): This. + [FT_CONFIG_OPTION_INCREMENTAL]: Added support for incrementally + loaded Type 1 faces. + (T1_Parse_Glyph): New function. + (T1_Load_Glyph): Updated. + +2002-07-17 David Turner + + Cleaning up the cache sub-system code; linear hashing is now the + default. + + * include/freetype/cache/ftccache.h, src/cache/ftccache.i, + src/cache/ftccache.c [!FTC_CACHE_USE_LINEAR_HASHING]: Removed. + (FTC_CACHE_USE_LINEAR_HASHING: Removed also. + + FT_CONFIG_OPTION_USE_CMAPS is now the default. + + * include/freetype/internal/ftdriver.h (FT_Driver_ClassRec): Remove + `get_char_index' and `get_next_char'. + + * include/freetype/config/ftoption.h, + include/freetype/internal/tttypes.h, src/base/ftobjs.c, + src/bdf/bdfdrivr.c, src/cff/cffobjs.c, src/pcf/pcfdrivr.c, + src/pfr/pfrdrivr.c, src/sfnt/sfobjs.c, src/sfnt/ttcmap0.c, + src/sfnt/ttcmap0.h, src/sfnt/ttload.c, src/type1/t1objs.c, + src/type42/t42objs.c, src/winfonts/winfnt.c + [!FT_CONFIG_OPTION_USE_CMAPS]: Removed. The new cmap code is now + the default. + + * src/type42/t42objs.c (T42_CMap_CharIndex, T42_CMap_CharNext): + Removed. + * src/type42/t42objs.h: Updated. + + * src/cid/cidriver.c (Cid_Get_Char_Index, Cid_Get_Next_Char): + Removed. + (t1_cid_driver_class): Updated. + * src/truetype/ttdriver.c (tt_driver_class): Updated. + * src/type1/t1driver.c (Get_Char_Index, Get_Next_Char): Removed + (t1_driver_class): Updated. + * src/type42/t42drivr.c (t42_driver_class): Updated. + + * src/base/ftobjs.c (open_face): Select Unicode cmap by default. + + * src/sfnt/ttload.c (TT_Load_SFNT_Header): Fixed a recent bug that + prevented OpenType fonts to be recognized by FreeType. + +2002-07-11 David Turner + + Changing the SFNT loader to check for SFNT-based font files + differently. We now ignore the range `helper' fields and check the + `head' table's magic number instead. + + * include/freetype/internal/tttypes.h (SFNT_HeaderRec): Add `offset' + field. + + * src/sfnt/ttload.c (sfnt_dir_check): New function. + (TT_Load_SFNT_HeaderRec): Renamed to... + (TT_Load_SFNT_Header): This. + Implement new functionality. + * src/sfnt/ttload.h: Updated. + * src/sfnt/sfdriver.c (sfnt_interface): Updated. + + * src/base/ftobject.c, src/base/fthash.c: Updated object sub-system + and dynamic hash table implementation (still experimental, don't + use). + * include/freetype/internal/fthash.h: Updated. + * include/freetype/internal/ftobjs.h (FT_LibraryRec): New member + `meta_class'. + + Fixing a bug in the Type 1 loader that prevented valid font bounding + boxes to be loaded from multiple master fonts. + + * include/freetype/t1tables.h (PS_BlendRec): Add `bboxes' field. + + * include/freetype/internal/psaux.h (T1_FieldType): Add + `T1_FIELD_TYPE_BBOX'. + (T1_FieldLocation): Add `T1_FIELD_LOCATION_BBOX'. + (T1_FIELD_BBOX): New macro. + + * src/psaux/psobjs.c (PS_Parser_LoadField): Handle T1_FIELD_TYPE_BBOX. + * src/type1/t1load.c (t1_allocate_blend): Create blend->bboxes. + (T1_Done_Blend): Free blend->bboxes. + (t1_load_keyword): Handle T1_FIELD_LOCATION_BBOX. + (parse_font_bbox): Commented out. + (t1_keywords): Comment out `parse_font_bbox'. + * src/type1/t1tokens.h: Define `FontBBox' field. + +2002-07-10 David Turner + + * src/cff/cffobjs.c: Small fix to select the Unicode charmap by + default when needed. + Small fix to allow OpenType fonts to support Adobe charmaps when + needed. + + * src/cff/cffcmap.c, src/cff/cffcmap.h: New files to support + charmaps for CFF fonts. + + * src/cff/cff.c, src/cff/Jamfile, src/cff/rules.mk: Updated. + + * include/freetype/internal/cfftypes.h (CFF_EncodingRec): Use + fixed-length arrays for `sids' and `codes'. Add `count' member. + (CFF_FontRec): Add `psnames' member. + + * src/cff/cffdrivr.c, src/cff/cffload.c, src/cff/cffload.h, + src/cff/cffobjs.c, src/cff/cffobjs.h, src/cff/cffparse.c, + src/cffparse.h, src/cff/cffgload.c, src/cff/cffgload.h: Adding + support for CFF charmaps, reformatting the sources, and removing + some bugs in the Encoding and Charset loaders. + Many fonts renamed to use lowercase only: + + CFF_Builder_Init -> cff_builder_init + CFF_Builder_Done -> cff_builder_done + CFF_Init_Decoder -> cff_decoder_init + CFF_Parse_CharStrings -> cff_decoder_parse_charstrings + CFF_Load_Glyph -> cff_slot_load + CFF_Init_Decoder -> cff_decoder_init + CFF_Prepare_Decoder -> cff_decoder_prepare + CFF_Get_Standard_Encoding -> cff_get_standard_encoding + CFF_Access_Element -> cff_index_access_element + CFF_Forget_Element -> cff_index_forget_element + CFF_Get_Name -> cff_index_get_name + CFF_Get_String -> cff_index_get_sid_string + CFF_Get_FD -> cff_fd_select_get + CFF_Done_Charset -> cff_charset_done + CFF_Load_Charset -> cff_charset_load + CFF_Done_Encoding -> cff_encoding_done + CFF_Load_Encoding -> cff_encoding_load + CFF_Done_SubFont -> cff_subfont_done + CFF_Load_Font -> cff_font_load + CFF_Done_Font -> cff_font_done + CFF_Size_Get_Global_Funcs -> cff_size_get_global_funcs + CFF_Size_Done -> cff_size_done + CFF_Size_Init -> cff_size_init + CFF_Size_Reset -> cff_size_reset + CFF_GlyphSlot_Done -> cff_slot_done + CFF_GlyphSlot_Init -> cff_slot_init + CFF_StrCopy -> cff_strcpy + CFF_Face_Init -> cff_face_init + CFF_Face_Done -> cff_face_done + CFF_Driver_Init -> cff_driver_init + CFF_Driver_Done -> cff_driver_done + CFF_Parser_Init -> cff_parser_init + CFF_Parser_Run -> cff_parser_run + + add_point -> cff_builder_add_point + add_point1 -> cff_builder_add_point1 + add_contour -> cff_builder_add_contour + close_contour -> cff_builder_close_contour + cff_explicit_index -> cff_index_get_pointers + +2002-07-09 Owen Taylor + + * src/pshinter/pshglob.c (psh_globals_new): Fixed a bug that + prevented the hinter from using correct standard width and height + values, resulting in hinting bugs with certain fonts (e.g. Utopia). + +2002-07-07 David Turner + + * src/base/ftglyph.c (FT_Glyph_To_Bitmap): Added code to return + successfully when the function is called with a bitmap glyph (the + previous code simply returned with an error). + + * docs/DEBUG.TXT: Adding debugging support documentation. + + * src/base/ftdebug.c (ft_debug_init), builds/win32/ftdebug.c + (ft_debug_init), builds/amiga/src/ftdebug.c (ft_debug_init): Changed + the syntax of the FT2_DEBUG environment variable used to control + debugging output (i.e. logging and error messages). It must now + look like: + + any:6 memory:4 io:3 or + any:6,memory:4,io:3 or + any:6;memory:4;io:3 + +2002-07-07 Owen Taylor + + * src/pshinter/pshglob.c (psh_blues_snap_stem): Adding support for + blue fuzz. + * src/pshinter/pshglob.h (PSH_BluesRec): Add `blue_fuzz' field. + * src/type1/t1load.c (T1_Open_Face): Initialize `blue_fuzz'. + + Adding support for hinter-specific bit flags, and the new + FT_Set_Hint_Flags high-level API. + + * include/freetype/freetype.h (FT_Set_Hint_Flags): New function. + (FT_HINT_NO_INTEGER_STEM, FT_HINT_NO_HSTEM_ALIGN, + FT_HINT_NO_VSTEM_ALIGN): New macros. + + * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Add + `hint_flags' member. + + * src/base/ftobjs.c (FT_Set_Hint_Flags): New function. + + * include/freetype/internal/psaux.h (T1_DecoderRec): Add `hint_flags' + member. + + * include/freetype/internal/pshints.h (T1_Hints_ApplyFunc, + T2_Hints_ApplyFunc): Add parameter to pass hint flags. + + * src/psaux/t1decode.c (T1_Decoder_Parse_Charstrings, + T1_Decoder_Init): Use decoder->hint_flags. + * src/cff/cffgload.h (CFF_Builder): Add `hint_flags' field. + * src/cff/cffgload.c (CFF_Builder_Init): Set builder->hint_flags. + (CFF_Parse_CharStrings): Updated. + * src/pshinter/pshalgo1.c (ps1_hints_apply): Add parameter to handle + hint flags (unused). + * src/pshinter/pshalgo1.h: Updated. + * src/pshinter/pshalgo2.c (ps2_hints_apply): Add parameter to handle + hint flags (unused). + * src/pshinter/pshalgo2.h: Updated. + * src/pshinter/pshalgo3.c (ps3_hints_apply): Add parameter to handle + hint flags. + * src/pshinter/pshalgo3.h: Updated. + +2002-07-04 David Turner + + * src/pfr/pfrobjs.c (pfr_slot_load): Fixed a small bug that returned + incorrect advances when the outline resolution was different from + the metrics resolution. + + * src/autohint/ahhint.c: Removing compiler warnings. + + * src/autohint/ahglyph.c: s/FT_MEM_SET/FT_ZERO/ where appropriate. + (ah_outline_link_segments): Slight improvements to the serif + detection code. More work is needed though. + +2002-07-03 David Turner + + Small improvements to the automatic hinter. Uneven stem-widths have + now disappeared and everything looks much better, even if there are + still issues with serifed fonts. + + * src/autohint/ahtypes.h (AH_Globals): Added `stds' array. + * src/autohint/ahhint.c (OPTIM_STEM_SNAP): New #define. + (ah_snap_width): Commented out. + (ah_align_linked_edge): Renamed to... + (ah_compute_stem_width): This. + Don't allow uneven stem-widths. + (ah_align_linked_edge): New function. + (ah_align_serifed_edge): Don't strengthen serifs. + (ah_hint_edges_3, ah_hinter_scale_globals): Updated. + +2002-07-03 Owen Taylor + + Adding new algorithm based on Owen Taylor's recent work. + + * src/pshinter/pshalgo3.c, src/pshinter/pshalgo3.h: New files. + * src/pshinter/pshalgo.h: Updated. + Use pshalgo3 by default. + * src/pshinter/pshinter.c: Include pshalgo3.c. + + * src/pshinter/Jamfile, src/pshinter/rules.mk: Updated. + +2002-07-01 Owen Taylor + + * src/pshinter/pshalgo2.c (psh2_glyph_find_strong_points): Fix a bug + where, if a glyph has more than hint mask, the second mask gets + applied to points that should have been covered by the first mask. + +2002-07-01 Keith Packard + + * src/sfnt/ttcmap0.c (tt_cmap8_char_next, tt_cmap12_char_next): + Fixing the cmap 8 and 12 parsing routines. + +2002-07-01 David Turner + + * src/base/ftsynth.c: Include FT_TRIGONOMETRY_H. + (FT_Outline_Embolden): Renamed to... + (FT_GlyphSlot_Embolden): This. + Updated to new trigonometric functions. + (FT_Outline_Oblique): Renamed to... + (FT_GlyphSlot_Oblique): This. + (ft_norm): Removed. + * include/freetype/ftsynth.h: Updated. + +2002-06-26 David Turner + + * include/freetype/internal/ftobject.h: Updating the object + sub-system definitions (still experimental). + + * src/base/fthash.c (ft_hash_remove): Fixing a small reallocation + bug. + + * src/base/fttrigon.c (FT_Vector_From_Polar, FT_Angle_Diff): New + functions. + * include/freetype/fttrigon.h: Updated. + + + Adding path stroker component (work in progress). + + * include/freetype/ftstroker.h, src/base/ftstroker.c: New files. + * src/base/Jamfile: Updated. + + * include/freetype/config/ftheader.h (FT_STROKER_H): New macro. + + + * src/truetype/ttgload.c (TT_Load_Composite_Glyph), + src/base/ftoutln.c (FT_Vector_Transform): Fixed Werner's latest fix. + FT_Vector_Transform wasn't buggy, the TrueType composite loader was. + +2002-06-24 Werner Lemberg + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 3. + +2002-06-21 David Turner + + + * Version 2.1.2 released. + ========================= + + +2002-06-21 Roberto Alameda . + + * include/freetype/internal/t42types.h (T42_Font): Removed since + it is already in t42objs.h. + (T42_Face): Use T1_FontRec. + + * src/base/fttype1.c (FT_Get_PS_Font_Info): Updated. + (FT_Has_PS_Glyph_Names): Check for type42 driver name also. + * src/type42/t42objs.h: Include FT_INTERNAL_TYPE42_TYPES_H. + (T42_Face): Removed since it is already in t42types.h. + +2002-06-21 Detlef Würkner + + * src/pfrgload.c (pfr_glyph_load_compound): Fix loading of composite + glyphs. + +2002-06-21 Sven Neumann + + * src/prf/pfrtypes.h (PFR_KernPair): New structure. + (PFR_PhyFont): Use it. + (PFR_KernFlags): New enumeration. + * src/pfr/pfrload.c (pfr_extra_item_load_kerning_pairs): New + function. + (pfr_phy_font_extra_items): Use it. + (pfr_phy_font_done): Updated. + * src/pfr/pfrobjs.c (pfr_face_init): Set kerning flag conditionally. + (pfr_face_get_kerning): New function. + * src/pfr/pfrobjs.h: Updated. + * src/pfr/pfrdrivr.c (pfr_driver_class): Updated. + +2002-06-21 David Turner + + * README, docs/CHANGES: Preparing the 2.1.2 release. + +2002-06-19 Detlef Würkner + + * src/base/fttype1.c: Include FT_INTERNAL_TYPE42_TYPES_H. + (t1_face_check_cast): Removed. + (FT_Get_PS_Font_Info): Make it work with CID and Type 42 drivers + also. + +2002-06-19 Sebastien BARRE + + * src/type42/t42parse.c (t42_parse_sfnts): Fix compiler warning. + +2002-06-19 Werner Lemberg + + * src/base/ftoutln.c (FT_Vector_Transform): Fix serious typo + (xy <-> yx). + * src/truetype/ttgload.c (load_truetype_glyph): Replace `|' with + `||' to make code easier to read. + +2002-06-18 Roberto Alameda . + + * src/type42/t42objs.c (t42_check_size_change): Removed. + (T42_Size_SetChars, T42_Size_SetPixels): Use FT_Activate_Size + instead. + (T42_GlyphSlot_Load): Remove call to t42_check_size_change. + +2002-06-18 Detlef Würkner + + * src/psaux/t1cmap.c (t1_cmap_custom_char_index, + t1_cmap_custom_char_next): Fix index computation -- indices start + with 0 and not with cmap->first. + + Provide default charmaps. + + * src/bdf/bdfdrivr.c (BDF_Face_Init), src/pcf/pcfdriver.c + (PCF_Face_Init), src/pfr/pfrobjs.c (pfr_face_init), + src/type1/t1objs (T1_Face_Init), src/winfonts/winfnt.c + (FNT_Face_Init): Implement it. + +2002-06-17 Sven Neumann + + * src/pfr/pfrobjs.c (pfr_face_init): Fix typo. + +2002-06-16 Leonard Rosenthol + + Updated Win32/VC++ projects to include the new PFR driver. + + * builds/win32/visualc/freetype.dsp: Updated. + +2002-06-16 Anthony Fok + + Install freetype2.m4. + + * builds/unix/install.mk (install, uninstall): Handle it. + +2002-06-16 Detlef Würkner + + Same fix for PFR driver. + + * src/pfr/pfrcmap.c (pfr_cmap_char_index, pfr_cmap_char_next): + Increase return value by 1. + * src/pfr/pfrobjs.c (pfr_slot_load): Decrease index by 1. + +2002-06-15 Detlef Würkner + + Fix glyph indices to make index zero always the undefined glyph. + + * src/bdf/bdfdrivr.c (bdf_cmap_init): Don't decrease + cmap->num_encodings. + (bdf_cmap_char_index, bdf_cmap_char_next, BDF_Get_Char_Index): + Increase result by 1 for normal cases. + (BDF_Glyph_Load): Decrease index by 1. + + * src/pcf/pcfdriver.c (pcf_cmap_char_index, pcf_cmap_char_next, + PCF_Char_Get_Index): Increase result by 1 for normal cases. + (PCF_Glyph_Load): Decrease index by 1. + * src/pcf/pcfread.c (pcf_get_encodings): Don't decrease j for + allocating `encoding'. + + * src/base/ftobjs.c (FT_Load_Glyph, FT_Get_Glyph_Name): Fix + bounding tests. + +2002-06-14 Detlef Würkner + + Add new cmap support to BDF driver. + + * src/bdf/bdfdrivr.c (BDF_CMapRec) [FT_CONFIG_OPTION_USE_CMAPS]: + New structure. + (bdf_cmap_init, bdf_cmap_done, bdf_cmap_char_index, + bdf_cmap_char_next) [FT_CONFIG_OPTION_USE_CMAPS]: New functions. + (BDF_Get_Char_Index) [!FT_CONFIG_OPTION_USE_CMAPS]: Use only + conditionally. + (BDF_Face_Init): Handle `AVERAGE_WIDTH' and `POINT_SIZE' keywords. + Implement new cmap handling. + (bdf_driver_class): Updated. + +2002-06-14 Werner Lemberg + + * Makefile, configure, */*.mk, builds/unix/unix-def.in, + docs/CHANGES, docs/INSTALL: s/TOP/TOP_DIR/. + +2002-06-12 Werner Lemberg + + * src/bdf/bdflib.c: s/FT_Short/short/ for consistency. + +2002-06-11 David Turner + + * builds/win32/ftdebug.c: Added a missing #endif. + + * src/sfnt/ttload.c, src/bdf/bdflib.c: Removing compiler warnings. + + Removed the bug in Type 42 driver that prevented un-hinted outlines + to be loaded. + + * src/type42/t42objs.c (T42_Face_Init): Call FT_Done_Size. + (T42_Size_Init): Call FT_Activate_Size. + (t42_check_size_change): New function. + (T42_Size_SetChars, T42_Size_SetPixels): Use it. + (ft_glyphslot_clear): Replace FT_MEM_SET with FT_ZERO. + (T42_GlyphSlot_Load): Use t42_check_size_change. + Initialize more fields of `glyph'. + + * builds/win32/visualc/freetype.dsp: Updated. + +2002-06-09 David Turner + + + * Version 2.1.1 released. + ========================= + + +2002-06-08 Juliusz Chroboczek + + * include/freetype/internal/ftobjs.h, src/autohint/ahglyph.c, + src/base/ftobjs.c, src/sfnt/ttcmap0.c, src/smooth/ftgrays.c: Don't + use `setjmp', `longjmp', and `jmp_buf' but `ft_setjmp', `ft_longjmp', + and `ft_jmp_buf'. + Removed direct references to and when + appropriate, to eventually replace them with a + FT_CONFIG_STANDARD_LIBRARY_H. Useful for the XFree86 Font Server + backend based on FT2. + + * src/base/fttype1.c (FT_Has_PS_Glyph_Names): Fix return value. + +2002-06-08 David Turner + + * src/pcf/pcfdriver.c (pcf_cmap_char_next): Fixed a bug that caused + the function to return invalid values. + + * src/cache/ftccache.i: Removing a typo that prevented + the source's compilation. + + * src/cache/ftccache.c (ftc_node_hash_unlink): Fixed a + bug that caused nasty memory overwrites. The hash table's + buckets array wasn't correctly resized when shrunk. + +2002-06-08 Detlef Würkner + + * builds/amiga/smakefile, builds/amiga/makefile: Updated. + +2002-06-08 Werner Lemberg + + * src/cache/ftccache.c (ftc_node_hash_unlink, ftc_node_hash_link) + [FTC_CACHE_USE_LINEAR_HASHING]: Fix returned error code. + Fix debugging messages. + * src/cache/ftccache.i (GEN_CACHE_LOOKUP): Move declaration of + `family' and `hash' up to make it compilable with g++. + + * src/type42/t42error.h: New file. + * src/type42/t42drivr.c, src/type42/t42objs.c, + src/type42/t42parse.c: Use t42 error codes. + * src/type42/rules.mk: Updated. + + * src/base/ftnames.c: Include FT_INTERNAL_STREAM_H. + +2002-06-08 David Turner + + * src/cache/ftccmap.c: GEN_CACHE_FAMILY_COMPARE, + GEN_CACHE_NODE_COMPARE, GEN_CACHE_LOOKUP) [FTC_CACHE_USE_INLINE]: + New macros. + (ftc_cmap_cache_lookup) [!FTC_CACHE_USE_INLINE]: Typedef to + ftc_cache_lookup. + (FTC_CMapCache_Lookup): Updated. + + Adding various experimental optimizations to the cache manager. + + * include/freetype/cache/ftccache.h (FTC_CACHE_USE_INLINE, + FTC_CACHE_USE_LINEAR_HASHING): New options. + (FTC_CacheRec) [FTC_CACHE_USE_LINEAR_HASHING]: New elements `p', + `mask', and `slack'. + + * src/cache/ftccache.c (FTC_HASH_MAX_LOAD, FTC_HASH_MIN_LOAD, + FTC_HASH_SUB_LOAD) [FTC_CACHE_USE_LINEAR_HASHING, + FTC_HASH_INITIAL_SIZE]: New macros. + (ftc_node_mru_link, ftc_node_mru_up): Optimized. + (ftc_node_hash_unlink, ftc_node_hash_link) + [FTC_CACHE_USE_LINEAR_HASHING]: New variants. + (FTC_PRIMES_MIN, FTC_PRIMES_MAX, ftc_primes, ftc_prime_closest, + FTC_CACHE_RESIZE_TEST, ftc_cache_resize) + [!FTC_CACHE_USE_LINEAR_HASHING]: Define it conditionally. + (ftc_cache_init, ftc_cache_clear) [FTC_CACHE_USE_LINEAR_HASHING]: + Updated. + (ftc_cache_lookup) [FTC_CACHE_USE_LINEAR_HASHING]: Implement it. + + * src/cache/ftccache.i: New file. + + * src/cache/ftcsbits.c (GEN_CACHE_FAMILY_COMPARE, + GEN_CACHE_NODE_COMPARE, GEN_CACHE_LOOKUP) [FTC_CACHE_USE_INLINE]: + New macros. + (ftc_sbit_cache_lookup) [!FTC_CACHE_USE_INLINE]: Typedef to + ftc_cache_lookup. + (FTC_SBitCache_Lookup): Updated. + + * src/type42/t42parse.c: Removing duplicate function. + +2002-06-07 Graham Asher + + * src/base/ftobjs.c (FT_Render_Glyph_Internal): Changed definition + from FT_EXPORT_DEF to FT_BASE_DEF. + +2002-06-07 David Turner + + Fixed the bug that prevented the correct display of fonts with + `ftview'. + + * src/type42/t42drivr.c: Split into... + * src/type42/t42drivr.h, src/type42/t42parse.c, + src/type42/t42parse.h, src/type42/t42objs.h, src/type42/t42objs.c, + src/type42/type42.c: New files. + + (t42_get_glyph_name, t42_get_ps_name, t42_get_name_index): Use + `face->type1'. + + (Get_Interface): Renamed to... + (T42_Get_Interface): This. + Updated. + (T42_Open_Face, T42_Face_Done): Updated. + (T42_Face_Init): Add new cmap support. + Updated. + (T42_Driver_Init, T42_Driver_Done, T42_Size_Init, T42_Size_Done, + T42_GlyphSlot_Init, T42_GlyphSlot_Done): Updated. + (Get_Char_Index, Get_Next_Char): Renamed to... + (T42_CMap_CharIndex, T42_CMap_CharNext): This. + Updated. + (T42_Char_Size, T42_Pixel_Size): Renamed to... + (T42_Size_SetChars, T42_Size_SetPixels): This. + (T42_Load_Glyph): Renamed to... + (T42_GlyphSlot_Load): This. + + (t42_init_loader, t42_done_loader): Renamed to... + (t42_loader_init, t42_loader_done): This. + (T42_New_Parser, T42_Finalize_Parser): Renamed to... + (t42_parser_init, t42_parser_done): This. + (parse_dict): Renamed to... + (t42_parse_dict): This. + (is_alpha, is_space, hexval): Renamed to... + (t42_is_alpha, t42_is_space, t42_hexval): This. + (parse_font_name, parse_font_bbox, parse_font_matrix, + parse_encoding, parse_sfnts, parse_charstrings, parse_dict): + Renamed to... + (t42_parse_font_name, t42_parse_font_bbox, t42_parse_font_matrix, + t42_parse_encoding, t42_parse_sfnts, t42_parse_charstrings, + t42_parse_dict): This. + Updated. + + (t42_keywords): Updated. + + * src/type42/Jamfile, src/type42/descrip.mms: Updated. + +2002-06-03 Werner Lemberg + + Add 8bpp support to BDF driver. + + * src/bdf/bdflib.c (_bdf_parse_start): Handle 8bpp. + * src/bdf/bdfdrivr.c (BDF_Glyph_Load): Ditto. + * src/bdf/README: Updated. + +2002-06-02 Detlef Würkner + + * src/pfr/pfrload.c (pfr_phy_font_done): Free `blue_values' array. + +2002-05-29 Detlef Würkner + + * src/bdf/bdflib.c (_bdf_readstream): Allocate `buf' dynamically. + (_bdf_parse_glyphs): Use correct size for allocating + `font->unencoded'. + (bdf_load_font): Free array conditionally. + Return proper error code in case of failure. + * src/bdf/bdfdrivr.c (BDF_Face_Init): Make it more robust against + unusual fonts. + +2002-05-29 Werner Lemberg + + * src/bdf/descrip.mms, src/type42/descrip.mms: New files. + * descrip.mms (all): Updated. + + * src/bdf/bdflib.c (_bdf_parse_glyphs): Fix typo which prevented + compilation. + * src/pshglob.c (psh_blues_scale_zones): Fix compiler warning. + +2002-05-28 Detlef Würkner + + * builds/amiga/makefile, builds/amiga/smakefile, + amiga/include/freetype/config/ftmodule.h: Updated to include + support for BDF and Type42 drivers. + + * docs/modules.txt: Updated. + +2005-05-28 David Turner + + * docs/CHANGES: Updating file for next release (2.1.1). + + * src/bdf/bdflib.c: Removing compiler warnings. + + * include/freetype/ftxf86.h, src/base/ftxf86.c: New files. + They provide a new API (FT_Get_X11_Font_Format) to retrieve an + X11-compatible string describing the font format of a given face. + This was put in a new optional base source file, corresponding to a + new public header (named FT_XFREE86_H since this function should + only be used within the XFree86 font server IMO). + + * include/freetype/config/ftheader.h (FT_XFREE86_H): New macro (not + documented yet). + + * src/base/fttype1.c: New file, providing two new API functions + (FT_Get_PS_Font_Info and FT_Has_PS_Glyph_Names). + * include/freetype/t1tables.h: Updated. + + * src/base/Jamfile, src/base/rules.mk, src/base/descrip.mms: + Updating build control files for the new files `ftxf86.c' and + `fttype1.c' in src/base. + + * src/pshinter/pshglob.c (psh_blues_scale_zones): Fixed a bug that + prevented family blue zones substitution from hapenning correctly. + + * include/freetype/ftbdf.h FT_Get_BDF_Charset_ID): Adding + documentation comment. + +2002-05-28 Werner Lemberg + + * src/base/ftnames.c (FT_Get_Sfnt_Name): Don't use FT_STREAM_READ_AT + but FT_STREAM_READ. + Declare `stream' variable. + + * src/bdf/bdflib.c (_bdf_parse_glyphs): Replace floating point math + with calls to `FT_MulDiv'. + +2002-05-28 David Turner + + Fixing the SFNT name table loader to support various buggy fonts. + It now ignores empty name entries, entries with invalid pointer + Offsets and certain fonts containing tables with broken + `storageOffset' fields. + + Name strings are now loaded on demand, which reduces the memory + requirements for a given FT_Face tremendously (for example, the name + table of Arial.ttf is about 10Kb and contains 70 names). + + This is a temporary fix. The whole name table loader and interface + will be rewritten in a much more cleanly way shortly, once CSEH have + been introduced in the sources. + + * include/freetype/internal/tttypes.h (TT_NameEntryRec): Change + type of `stringOffset' to FT_ULong. + (TT_NameTableRec): Change type of `numNameRecords' and + `storageOffset' to FT_UInt. + Replace `storage' with `stream'. + * src/base/ftnames.c (FT_Get_Sfnt_Name): Load name on demand. + * src/sfnt/sfdriver.c (get_sfnt_postscript_name): Ditto. + Make code more robust. + * src/sfnt/sfobjs.c (TT_NameEntry_ConvertFunc): New typedef. + (tt_face_get_name): Use it. + Make code more robust. + * src/sfnt/ttload.c (TT_Load_Names): Use `static' for arrays. + Handle invalid `storageOffset' data better. + Set length fields to zero for invalid or ignored data. + Remove code within FT_DEBUG_LEVEL_TRACE. + (TT_Free_Names): Updated. + +2002-05-24 Tim Mooney + + * builds/unix/ft-munmap.m4: New file, extracted FT_MUNMAP_DECL and + FT_MUNMAP_PARAM from aclocal.m4 into here, so aclocal.m4 can be + rebuilt from sources. Set macro serial to 1, and use third argument + to AC_DEFINE for our two custom symbols, so ftconfig.in could one day + be rebuilt with autoheader (not recommended now, ftconfig.in is a + custom source file) + +2002-05-22 Werner Lemberg + + * include/freetype/config/ftheader.h (FT_BEZIER_H): Removed. + (FT_BDF_H): New macro for accessing `ftbdf.h'. + + * src/type42/t42drivr.c (hexval): Fix typo. + +2002-05-21 Martin Muskens + + * src/psaux/psobjs.c (T1Radix): New function. + (t1_toint): Use it to handle numbers in radix format. + + * src/psaux/t1decode.c (T1_Decoder_Parse_Charstrings): Add dummy + for undocumented, obsolete opcode 15. + +2002-05-21 David Turner + + * src/bdf/bdflib.c: Removed compiler warning, and changed all tables + to the `static const' storage specifier (instead of simply + `static'). + + * src/type42/t42drivr.c (hexval): Use more efficient code. + Removing compiler warnings. + * src/bdf/bdfdrivr.c: Removing compiler warnings. + + * include/freetype/internal/ftbdf.h, src/base/ftbdf.c, + src/base/descrip.mms, src/base/Jamfile, src/base/rules.mk + (FT_Get_BDF_Charset_ID): New API to retrieve BDF-specific strings + from a face. This is much cleaner than accessing the internal types + `BDF_Public_Face' defined in FT_INTERNAL_BDF_TYPES_H. + +2002-05-21 Werner Lemberg + + * src/bdf/README: Mention Microsoft's SBIT tool. + + * src/cff/cffdrivr.c, src/cid/cidriver.c, src/pcf/pcfdriver.c, + src/truetype/ttdriver.c, src/type1/t1driver.c, + src/winfonts/winfnt.c, src/type42/t42drivr.c, src/bdf/bdfdrivr.c + [FT_CONFIG_OPTION_DYNAMIC_DRIVERS]: Completely removed. It has + been never used. + +2002-05-21 Roberto Alameda . + + * src/type42/t42drivr.c: s/T42_ENCODING_TYPE_/T1_ENCODING_TYPE_/. + (parse_font_matrix): Remove unnecessary code. + (parse_sfnts): Initialize some variables. + (t42_driver_class) [TT_CONFIG_OPTION_BYTECODE_INTERPRETER]: Use + ft_module_driver_has_hinter conditionally. + Moved some type 42 specific structure definitions to... + * include/freetype/internal/t42types.h: New file. + * include/freetype/internal/internal.h (FT_INTERNAL_T42_TYPES_H): + New macro. + +2002-05-20 Werner Lemberg + + * include/freetype/cache/ftcsbits.h (FTC_SBit): Added a new field + `num_grays' for specifying the number of used gray levels. + * src/cache/ftcsbits.c (ftc_sbit_node_load): Initialize it. + +2002-05-19 Werner Lemberg + + Adding a driver for BDF fonts written by Francesco Zappa Nardelli + . Heavily modified by me to + better adapt it to FreeType, removing unneeded stuff. Additionally, + it now supports Mark Leisher's BDF extension for anti-aliased + bitmap glyphs with 2 and 4 bpp. + + * src/bdf/*: New driver. + * include/freetype/internal/bdftypes.h: New file. + * include/freetype/internal/fttrace.h: Added BDF driver components. + * include/freetype/fterrdef.h: Added error codes for BDF driver. + * include/freetype/config/ftmodule.h, src/Jamfile: Updated. + * include/freetype/internal/internal.h (FT_INTERNAL_BDF_TYPES_H): + New macro. + + * include/freetype/config/ftstdlib.h (ft_sprintf): New alias for + sprintf. + +2002-05-18 Werner Lemberg + + * include/freetype/internal/fttrace.h: Added Type 42 driver + component. + * src/type42/t42drivr.c: Use it. + + * include/freetype/internal/internal.h (FT_INTERNAL_PCF_TYPES_H): + New macro. + +2002-05-17 Werner Lemberg + + * src/type42/Jamfile: New file. + +2002-05-14 Werner Lemberg + + Adding a driver for Type42 fonts written by Roberto Alameda + . + + * src/type42/*: New driver. + * include/freetype/config/ftmodule.h, src/Jamfile: Updated. + * include/freetype/config/ftstdlib.h (ft_xdigit, ft_memcmp, + ft_atoi): New aliases for xdigit, memcmp, and atoi, respectively. + +2002-05-12 Owen Taylor + + * src/sfnt/ttload.c (TT_LookUp_Table): Protect against tables + with a zero length value. + +2002-05-12 Michael Pfeiffer + + * builds/beos/beos.mk: Include `link-std.mk'. + +2002-05-12 Werner Lemberg + + * src/type1/t1load.h (T1_Loader): Renamed to... + (T1_LoaderRec): This. + (T1_Loader): Now pointer to T1_LoaderRec. + * src/type1/t1load.c: Updated. + + * include/freetype/internal/t1types.h, src/type1/t1load.c, + src/type1/t1objs.c: + s/T1_ENCODING_TYPE_EXPORT/T1_ENCODING_TYPE_EXPERT/. + +2002-05-06 Werner Lemberg + + * README: Add a note regarding libttf vs. libfreetype. + +2002-05-05 Werner Lemberg + + FreeType 2 can now be built in an external directory with the + configure script also. + + * builds/freetype.mk (INCLUDES): Add `OBJ_DIR'. + + * builds/unix/detect.mk (have_mk): New variable to test for + external build. + (unix-def.mk): Defined according to value of `have_mk'. + * builds/unix/unix.mk (have_mk): New variable to test for + external build. + Select include paths for unix-def.mk and unix-cc.mk according + to value of `have_mk'. + * builds/unix/unix-def.in (OBJ_BUILD): New variable. + (DISTCLEAN): Use it. + * builds/unix/unix-cc.in (LIBTOOL): Define default value only + if not yet defined. + * builds/unix/install.mk (install): Use `OBJ_BUILD' for installing + freetype-config. + + * configure: Don't depend on bash features. + (ft2_dir, abs_curr_dir, abs_ft2_dir): New variables (code + partially taken from Autoconf). + Build a dummy Makefile if not building in source tree. + + * docs/INSTALL: Document it. + +2002-05-04 David Turner + + * src/truetype/ttgload.c (TT_Load_Glyph): Finally fixing the last + bug that prevented FreeType 2.x and FreeType 1.x to produce + bit-by-bit identical monochrome glyph bitmaps with native TrueType + hinting. The culprit was a single-bit flag that wasn't set + correctly by the TrueType glyph loader. + + * src/otlayout/otlayout.h, src/otlayout/otlbase.c, + src/otlayout/otlbase.h, src/otlayout/otlconf.h, + src/otlayout/otlgdef.c, src/otlayout/otlgdef.h, + src/otlayout/otlgpos.c, src/otlayout/otlgpos.h, + src/otlayout/otlgsub.c, src/otlayout/otlgsub.h, + src/otlayout/otljstf.c, src/otlayout/otljstf.h, + src/otlayout/otltable.c, src/otlayout/otltable.h, + src/otlayout/otltags.h: New OpenType Layout source files. The + module is still incomplete. + +2002-05-02 Werner Lemberg + + * src/sfnt/ttcmap0.c (tt_cmap4_char_index): Fix serious typo + (0xFFFU -> 0xFFFFU). + +2002-05-01 Werner Lemberg + + * docs/INSTALL: Fix URL of makepp. + +2002-05-01 David Turner + + * src/sfnt/sfobjs.c (tt_face_get_name): Fixing a bug that caused + FreeType to crash when certain broken fonts (e.g. `hya6gb.ttf') + were opened. + + * src/sfnt/ttload.c (TT_Load_Names): Applied a small work-around to + manage fonts containing a broken name table (e.g. `hya6gb.ttf'). + + * src/sfnt/ttcmap0.c (tt_cmap4_validate): Fixed over-restrictive + validation test. The charmap validator now accepts overlapping + ranges in format 4 charmaps. + + * src/sfnt/ttcmap0.c (tt_cmap4_char_index): Switched to a binary + search algorithm. Certain fonts contain more than 170 distinct + segments! + + * include/freetype/config/ftstdlib.h: Adding an alias for the `exit' + function. This will be used in the near future to panic in case of + unexpected exception (which shouldn't happen in theory). + + * include/freetype/internal/fthash.h, src/base/fthash.c: New files. + This is generic implementation of dynamic hash tables using a linear + algorithm (to get rid of `stalls' during resizes). In the future + this will be used in at least three parts of the library: the cache + sub-system, the object sub-system, and the memory debugger. + + * src/base/Jamfile: Updated. + + * include/freetype/internal/internal.h (FT_INTERNAL_HASH_H, + FT_INTERNAL_OBJECT_H): New macros. + + * include/freetype/internal/ftcore.h: New file to group all new + definitions related to exception handling and memory management. It + is very likely that this file will disappear or be renamed in the + future. + + * include/freetype/internal/ftobject.h, include/freetype/ftsysmem.h: + Adding comments to better explain the object sub-system as well as + the new memory manager interface. + +2002-04-30 Wenlin Institute (Tom Bishop) + + * src/base/ftmac.c (p2c_str): Removed. + (file_spec_from_path) [TARGET_API_MAC_CARBON]: Added support for + OS X. + (is_dfont) [TARGET_API_MAC_CARBON]: Define only for OS X. + Handle `nameLen' <= 6 also. + (parse_fond): Remove unused variable `name_table'. + Use functionality of old p2c_str directly. + Add safety checks. + (read_lwfn): Initialize `size_p'. + Check for size_p == NULL. + (new_memory_stream, open_face_from_buffer): Updated to FreeType 2.1. + (FT_New_Face_From_LWFN): Remove unused variable `memory'. + Remove some dead code. + (FT_New_Face_From_SFNT): Remove unused variable `stream'. + (FT_New_Face_From_dfont) [TARGET_API_MAC_CARBON]: Define only for + OS X. + (FT_New_Face_From_FOND): Remove unused variable `error'. + (ResourceForkSize): New function. + (FT_New_Face): Use it. + Handle empty resource forks. + Conditionalize some code for OS X. + Add code to call normal loader as a fallback. + +2002-04-30 Werner Lemberg + + `interface' is reserved on the Mac. + + * include/freetype/ftoutln.h, include/freetype/internal/sfnt.h, + src/base/ftoutln.c: s/interface/func_interface/. + * src/base/ftbbox.c (FT_Outline_Get_BBox): + s/interface/bbox_interface/. + * src/cff/cffdrivr.c: s/interface/module_interface/. + * src/cff/cffload.c, src/cff/cffload.h: + s/interface/psnames_interface/. + * src/cid/cidriver.c: s/interface/cid_interface/. + * src/sfnt/sfdriver.c: s/interface/module_interface/. + * src/smooth/ftgrays.c: s/interface/func_interface/. + * src/truetype/ttdriver.c: s/interface/tt_interface/. + * src/type1/t1driver.c: s/interface/t1_interface/. + + Some more variable renames to avoid troubles on the Mac. + + * src/raster/ftraster.c: + s/Unknown|Ascending|Descending|Flat/\1_State/. + * src/smooth/ftgrays.c: s/TScan/TCoord/. + + Other changes for the Mac. + + * include/freetype/config/ftconfig.h: Define FT_MACINTOSH for + Mac platforms. + * src/base/ftobjs.c: s/macintosh/FT_MACINTOSH/. + + * src/raster/ftrend1.c (ft_raster1_render): Make `pitch' always + an even number. + +2002-04-29 Jouk Jansen + + * descrip.mms (all): Add pfr driver. + +2002-04-28 Werner Lemberg + + * src/pfr/pfrerror.h: New file. + * include/freetype/ftmoderr.h: Add PFR error codes. + * src/pfr/pfrgload.c: Include pfrerror.h. + Use PCF error codes. + (pfr_extra_item_load_stem_snaps): Fix debug message. + * src/pfr/pfrgload.c: Include pfrerror.h. + Use PCF error codes. + (pfr_extra_item_load_bitmap_info, pfr_glyph_load_simple, + pfr_glyph_load_compound): Fix debug message. + * src/pfr/pfrobjs.c: Include pfrerror.h. + Use PCF error codes. + (pfr_face_init): Return PFR_Err_Unknown_File_Format. + * src/pfr/rules.mk (PFR_DRV_H): Include pfrerror.h. + + * src/pcf/pcfdriver.c (PCF_Face_Init) [!FT_CONFIG_OPTION_USE_CMAPS]: + `root' -> `face->root'. + * src/sfnt/ttcmap0.c (TT_Build_CMaps) [!FT_CONFIG_OPTION_USE_CMAPS]: + Removed. + * src/sfnt/ttcmap0.c: Declare TT_Build_CMaps only for + FT_CONFIG_OPTION_USE_CMAPS. + +2002-04-27 Werner Lemberg + + * src/cache/ftccache.c (ftc_cache_lookup), + src/cache/ftccmap.c (ftc_cmap_family_init), + src/cache/ftcmanag.c (ftc_family_table_alloc), + src/cache/ftcsbits.c (FTC_SBit_Cache_Lookup): Use FTC_Err_*. + src/cache/ftcimage.c (FTC_Image_Cache_Lookup): Use FTC_Err_*. + (FTC_ImageCache_Lookup): Fix handling of invalid arguments. + +2002-04-22 Werner Lemberg + + * builds/unix/configure.ac: Set `version_info' to 9:1:3 (FT2 + version 2.0.9 has 9:0:3). + * builds/unix/configure: Regenerated (using autoconf 2.53). + +2002-04-19 Werner Lemberg + + * src/pfr/pfrload.c (pfr_extra_items_farse): Fix debug message. + (pfr_phy_font_load): s/size/Size/ for local variable to avoid + compiler warning. + * src/pfr/pfrobjs.c (pfr_face_init): Fix debug message. + (pfr_slot_load): Remove redundant local variable. + +2002-04-19 David Turner + + Adding a PFR font driver to the FreeType sources. Note that it + doesn't support embedded bitmaps or kerning tables yet. + + src/pfr/*: New files. + + * include/freetype/config/ftmodule.h, + include/freetype/internal/fttrace.h, src/Jamefile: Updated. + + * src/type1/t1gload.h (T1_Load_Glyph), src/type1/t1gload.c + (T1_Load_Glyph): Fixed incorrect parameter sign-ness in callback + function. + + * include/freetype/internal/ftmemory.h (FT_MEM_ZERO, FT_ZERO): New + macros. + + * include/freetype/internal/ftstream.h (FT_NEXT_OFF3, FT_NEXT_UOFF3, + FT_NEXT_OFF3_LE, FT_NEXT_UOFF3_LE): New macros to parse in-memory + 24-bit integers. + +2002-04-18 David Turner + + * src/base/ftobjs.c, builds/win32/ftdebug.c, + builds/amiga/src/base/ftdebug.c: Version 2.1.0 couldn't be linked + against applications in Win32 and Amiga builds due to changes to + `src/base/ftdebug.c' that were not properly propagated to + `builds/win32' and `builds/amiga'. This has been fixed. + + * include/freetype/internal/ftobject.h, + include/freetype/internal/ftexcept.h, include/freetype/ftsysmem.h, + include/freetype/ftsysio.h, src/base/ftsysmem.c, src/base/ftsysio.c: + New experimental files. + +2002-04-17 David Turner + + + * Version 2.1.0 released. + ========================= + + +2002-04-17 Michael Jansson + + * src/type1/t1gload.c (T1_Compute_Max_Advance): Fixed a small bug + that prevented the function to return the correct value. + +2002-04-16 Francesco Zappa Nardelli + + * src/pcf/pcfread (pcf_get_accell): Fix parsing of accelerator + tables. + +2002-04-15 David Turner + + * docs/FTL.txt: Formatting. + + * include/freetype/config/ftoption.h: Reduce the size of the + render pool from 32kByte to 16kByte. + + * src/pcf/pcfread.c (pcf_seek_to_table_type): Remove compiler + warning. + + * include/freetype/config/ftoption.h (FT_MAX_EXTENSIONS): Removed. + + * docs/CHANGES: Preparing 2.1.0 release. + +2002-04-13 Werner LEMBERG + + * src/cff/cffgload.c (CFF_Parse_CharStrings): s/rand/Rand/ to avoid + compiler warning. + +2002-04-12 David Turner + + * README.UNX: Updated the Unix-specific quick-compilation guide to + warn about the GNU Make requirement at compile time. + + * include/freetype/config/ftstdlib.h, + include/freetype/config/ftconfig.h, + include/freetype/config/ftheader.h, + include/freetype/internal/ftmemory.h, + include/freetype/internal/ftobjs.h, + + src/autohint/ahoptim.c, + + src/base/ftdbgmem.c, src/base/ftdebug.c, src/base/ftmac.c, + src/base/ftobjs.c, src/base/ftsystem.c, + + src/cache/ftcimage.c, src/cache/ftcsbits.c, + + src/cff/cffdriver.c, src/cff/cffload.c, src/cff/cffobjs.c, + + src/cid/cidload.c, src/cid/cidparse.c, src/cid/cidriver.c, + + src/pcf/pcfdriver.c, src/pcf/pcfread.c, + + src/psaux/t1cmap.c, src/psaux/t1decode.c, + + src/pshinter/pshalgo1.c, src/pshinter/pshalgo2.c, + src/pshinter/pshrec.c, + + src/psnames/psmodule.c, + + src/raster/ftraster.c, + + src/sfnt/sfdriver.c, src/sfnt/ttload.c, + + src/smooth/ftgrays.c, + + src/type1/t1afm.c, src/type1/t1driver.c, src/type1/t1gload.c, + src/type1/t1load.c, src/type1/t1objs.c, src/type1/t1parse.c, + + builds/unix/ftconfig.in, builds/vms/ftconfig.h, + + builds/amiga/src/base/ftdebug.c: + + Added the new configuration file `ftstdlib.h' used to define + aliases for all ISO C library functions used by the engine + (e.g. strlen, qsort, setjmp, etc.). + + This eases the porting of FreeType 2 to environments like + XFree86 modules/extensions. + + Also removed many #include , #include , etc. + from the engine's sources where they are not needed. + + * src/sfnt/ttpost.c: Use macro name for psnames.h. + +2002-04-12 Vincent Caron + + * configure, builds/detect.mk: Updated the build system to print + a warning message in case GNU Make isn't used to build the library. + +2002-04-11 David Turner + + * README, docs/CHANGES, Jamfile.in: Updates for the 2.1.0 release. + + * docs/FTL.txt: Updated license text to provide a preferred + disclaimer and adjust copyright dates/extents. + + * include/freetype/cache/ftcglyph.h: Removing obsolete (and + confusing) comment. + + * Jamfile.in: New file. + +2002-04-11 Maxim Shemanarev + + * src/smooth/ftgrays.c (gray_hline): Minor optimization. + +2002-04-02 Werner Lemberg + + Fixes from the stable branch: + + * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_OLD_CALCS): + Removed. + [FT_CONFIG_OPTION_OLD_CALCS]: Removed. + * include/freetype/internal/ftcalc.h, src/base/ftcalc.c + [FT_CONFIG_OPTION_OLD_CALCS]: Removed. + + * src/base/fttrigon.c (FT_Vector_Length): Change algorithm to match + output of FreeType 1. + + * src/pshinter/pshglob.c (psh_globals_scale_widths): Fixed a small + bug that created un-even stem widths when hinting Postscript fonts. + + * src/type1/t1driver.c, src/type1/t1parse.c: 16bit fixes. + +2002-04-01 Werner Lemberg + + * src/truetype/ttgload.c: 16bit fixes. + (TT_Load_Simple_Glyph): Improve debug messages. + (load_truetype_glyph): Remove dead code. + * src/truetype/ttinterp.c: 16bit fixes. + * src/truetype/ttobjs.c: Ditto. + + * include/freetype/ftsnames.h, include/freetype/internal/sfnt.h, + src/cff/cffload.h, src/psaux/psobjs.h, src/truetype/ttinterp.[ch], + src/sfnt/ttpost.h: s/index/idx/. + +2002-03-31 Yao Zhang + + * src/truetype/ttobjs.c (TT_Size_Init): Fix typo. + +2002-03-31 Werner Lemberg + + * src/otlayout/otlcommn.c, src/otlayout/otlcommn.h: s/index/idx/. + * src/psaux/t1cmap.c: Ditto. + * src/sfnt/ttcmap0.c: Ditto. + + * include/freetype/internal/tttypes.h, + include/freetype/internal/sfnt.h (TT_Goto_Table_Func): Renamed to ... + (TT_Loader_GotoTableFunc): This. + * src/psaux/t1decode.c (T1_Decoder_Parse_Charstrings): Fix debug + messages. + * src/psnames/psmodule.c (psnames_interface) + [!FT_CONFIG_OPTION_ADOBE_GLYPH_LIST]: Fix typo. + * src/sfnt/sfdriver.c (get_sfnt_table): 16bit fix. + * src/sfnt/ttcmap.c: 16bit fixes (0xFFFF -> 0xFFFFU). + * src/sfnt/ttcmap0.c: 16bit fixes. + (TT_Build_CMaps): Simplify debug messages. + (tt_cmap12_char_next): Fix offset. + * src/sfnt/ttload.c (TT_Load_Names, TT_Load_CMap): Fix debug + messages. + (TT_Load_OS2): 16bit fix. + +2002-03-30 David Turner + + * include/freetype/internal/tttypes.h: Adding comments to some of + the TT_FaceRec fields. + + * src/sfnt/ttcmap0.c (TT_Build_CMaps): Removed compiler warnings. + + * src/sfnt/sfobjs.c (tt_name_entry_ascii_from_{utf16,ucs4,other}: + New functions. + (tt_face_get_name): Use them to properly extract an ascii font name. + +2002-03-30 Werner Lemberg + + * include/freetype/t1tables.h (t1_blend_max): Fix typo. + * src/base/ftstream.c: Simplify FT_ERROR calls. + * src/cff/cffdrivr.c (cff_get_glyph_name): Fix debug message. + + * src/cff/cffobjs.c (CFF_Driver_Init, CFF_Driver_Done) + [TT_CONFIG_OPTION_EXTEND_ENGINE]: Removed. + * src/cff/sfobjs.c (SFNT_Load_Face) + [TT_CONFIG_OPTION_EXTEND_ENGINE]: Ditto. + * src/truetype/ttobjs.c (TT_Init_Driver, TT_Done_Driver) + [TT_CONFIG_OPTION_EXTEND_ENGINE]: Ditto. + + * src/truetype/ttdriver.c, src/truetype/ttobjs.c, + src/truetype/ttobjs.h: Renaming driver functions to the + FT__ scheme: + + TT_Init_Driver => TT_Driver_Init + TT_Done_Driver => TT_Driver_Done + TT_Init_Face => TT_Face_Init + TT_Done_Face => TT_Face_Done + TT_Init_Size => TT_Size_Init + TT_Done_Size => TT_Size_Done + TT_Reset_Size => TT_Size_Reset + +2002-03-29 Werner Lemberg + + * builds/vms/ftconfig.h: Rename LOCAL_DEF and LOCAL_FUNC to + FT_LOCAL and FT_LOCAL_DEF, respectively, as with other ftconfig.h + files. + * builds/unix/ftconfig.in: Add argument to FT_LOCAL and + FT_LOCAL_DEF. + * src/truetype/ttinterp.c: s/FT_Assert/FT_ASSERT/. + * builds/unix/configure.ac: Temporarily deactivate creation of + ../../Jamfile. + * builds/unix/configure: Updated. + +2002-03-28 KUSANO Takayuki + + * src/sfnt/sfdriver.c (get_sfnt_postscript_name): Fix serious typos. + +2002-03-28 Werner Lemberg + + * include/freetype/internal/psaux.h (PSAux_ServiceRec): Fix + compiler warnings. + * include/freetype/internal/t1types.h (T1_FaceRec): Use `const' for + some members. + * src/base/ftapi.c (FT_New_Memory_Stream): Fix typos. + * src/psaux/t1cmap.c (t1_cmap_std_init, t1_cmap_unicode_init): Add + cast. + (t1_cmap_{standard,expert,custom,unicode}_class_rec): Use + `FT_CALLBACK_TABLE_DEF'. + * src/psaux/t1cmap.h: Updated. + * src/sfnt/ttcmap0.c (TT_Build_CMaps): Use `ft_encoding_none' + instead of zero. + * src/type1/t1objs.c (T1_Face_Init): Use casts. + +2002-03-26 David Turner + + * src/sfnt/sfdriver.c, src/sfnt/sfobjs.c, src/sfnt/ttcmap0.c: + Fixed a small bug in the FT_CMaps support code. + +2002-03-25 David Turner + + * src/truetype/ttinterp.c (Norm): Replaced with... + (TT_VecLen): This. + (TT_MulFix14, TT_DotFix14): New functions. + (Project, Dual_Project, Free_Project, Compute_Point_Displacement, + Ins_SHPIX, Ins_MIAP, Ins_MIRP): Use them. + [FT_CONFIG_OPTION_OLD_CALCS]: Removed all code. + +2002-03-22 David Turner + + * src/base/ftobjs.c, src/sfnt/ttcmap0.c, src/type1/t1objs.c: + Various fixes to make the FT_CMaps support work correctly (more + tests are still needed). + + * include/freetype/internal/ftobjs.h, src/sfnt/Jamfile, + src/sfnt/rules.mk, src/sfnt/sfnt.c, src/sfnt/sfobjs.c, + src/sfnt/ttload.c, src/sfnt/ttcmap0.c, src/sfnt/ttcmap0.h: Updated + the SFNT charmap support to use FT_CMaps. + + * include/freetype/fterrdef.h: New file. + * include/freetype/fterrors.h: Include it. It contains all error + codes. + * include/freetype/config/ftheader.h (FT_ERROR_DEFINITIONS_H): New + macro. + + * include/freetype/internal/ftmemory.h, and a lot of other files: + Changed the names of memory macros. Examples: + + MEM_Set => FT_MEM_SET + MEM_Copy => FT_MEM_COPY + MEM_Move => FT_MEM_MOVE + + ALLOC => FT_ALLOC + FREE => FT_FREE + REALLOC = >FT_REALLOC + + FT_NEW was introduced to allocate a new object from a _typed_ + pointer. + + Note that ALLOC_ARRAY and REALLOC_ARRAY have been replaced by + FT_NEW_ARRAY and FT_RENEW_ARRAY which take _typed_ pointer + arguments. + + This results in _lots_ of sources being changed, but makes the code + more generic and less error-prone. + + * include/freetype/internal/ftstream.h, src/base/ftstream.c, + src/cff/cffload.c, src/pcf/pcfread.c, src/sfnt/ttcmap.c, + src/sfnt/ttcmap0.c, src/sfnt/ttload.c, src/sfnt/ttpost.c, + src/sfnt/ttsbit.c, src/truetype/ttgload.c, src/truetype/ttpload.c, + src/winfonts/winfnt.c: Changed the definitions of stream macros. + Examples: + + NEXT_Byte => FT_NEXT_BYTE + NEXT_Short => FT_NEXT_SHORT + NEXT_UShortLE => FT_NEXT_USHORT_LE + READ_Short => FT_READ_SHORT + GET_Long => FT_GET_LONG + etc. + + Also introduced the FT_PEEK_XXXX functions. + + * src/cff/cffobjs.c (CFF_Build_Unicode_Charmap): Removed commented + out function. + (find_encoding): Removed. + (CFF_Face_Init): Remove charmap support. + + * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_CMAPS, + TT_CONFIG_CMAP_FORMAT{0,2,4,6,8,10,12}): New macros to fine-tune + support of cmaps. + +2002-03-21 David Turner + + * src/base/ftobjs.c, src/pcf/pcfdriver.c, src/pcf/pcfread.c: Updated + to new FT_CMap definitions. + + * src/psaux/t1cmap.h, src/psaux/t1cmap.c, src/type1/t1cmap.h, + src/type1/t1cmap.c: Updating and moving the Type 1 FT_CMap support + from `src/type1' to `src/psaux' since it is going to be shared by + the Type 1 and CID font drivers. + + * src/psaux/Jamfile, src/psaux/psaux.c, src/psaux/psauxmod.c, + src/psaux/rules.mk, include/freetype/internal/psaux.h: Added support + for Type 1 FT_CMaps. + +2002-03-20 David Turner + + * src/base/ftgloadr.c (FT_GlyphLoader_CheckSubGlyphs): Fixed a + memory allocation bug that was due to un-careful renaming of the + FT_SubGlyph type. + + * src/base/ftdbgmem.c (ft_mem_table_destroy): Fixed a small bug that + caused the library to crash with Electric Fence when memory + debugging is used. + + * Renaming stream macros. Examples: + + FILE_Skip => FT_STREAM_SKIP + FILE_Read => FT_STREAM_READ + ACCESS_Frame => FT_FRAME_ENTER + FORGET_Frame => FT_FRAME_EXIT + etc. + + * src/sfnt/sfdriver.c (get_sfnt_postscript_name): Fixed memory leak. + + * include/freetype/internal/ftobjs.h: Changing the definition of + FT_CMap_CharNextFunc slightly. + + * src/cff/*.c: Updating CFF type definitions. + +2002-03-14 David Turner + + * include/freetype/internal/autohint.h, src/autohint/ahmodule.c, + src/base/ftapi.c, src/base/ftobjs.c: Updating the type definitions + for the auto-hinter module. + + FT_AutoHinter_Interface => FT_AutoHinter_ServiceRec + FT_AutoHinter_Interface* => FT_AutoHinter_Service + etc. + + FT_AutoHinter_Get_Global_Func => FT_AutoHinter_GlobalGetFunc + FT_AutoHinter_Done_Global_Func => FT_AutoHinter_GlobalDoneFunc + etc. + + * ahloader.h [_STANDALONE_]: Removed all conditional code. + + * include/freetype/internal/cfftypes.h, src/cff/*.c: Updating the + type definitions of the CFF font driver. + + CFF_Font => CFF_FontRec + CFF_Font* => CFF_Font + etc. + + * include/freetype/internal/fnttypes.h, src/winfonts/*.c: Updating + type definitions of the Windows FNT font driver. + + * include/freetype/internal/ftdriver.h, + include/freetype/internal/ftobjs.h, src/base/ftapi.c, + src/base/ftobjs.c, src/cff/cffdrivr.c, src/cff/cffdrivr.h, + src/cid/cidriver.c, src/cid/cidriver.h, src/pcf/pcfdriver.c, + src/pcf/pcfdriver.h, src/truetype/ttdriver.c, + src/truetype/ttdriver.h, src/type1/t1driver.c, src/type1/t1driver.h, + src/winfonts/winfnt.c, src/winfonts/winfnt.h: Updating type + definitions for font drivers. + + FTDriver_initFace => FT_Face_InitFunc + FTDriver_initGlyphSlot => FT_Slot_InitFunc + etc. + + * src/cid/cidobjs.c (CID_Face_Init): Remove dead code. + + * include/freetype/internal/ftobjs.h, src/base/ftobjs.c: Updated a + few face method definitions: + + FT_PSName_Requester => FT_Face_GetPostscriptNameFunc + FT_Glyph_Name_Requester => FT_Face_GetGlyphNameFunc + FT_Name_Index_Requester => FT_Face_GetGlyphNameIndexFunc + + * src/base/ftapi.c: New file. It contains backwards compatibility + functions. + + * include/freetype/internal/psaux.h, src/cid/cidload.c, + src/cidtoken.h, src/psaux/psobjs.c, src/psaux/psobjs.h, + src/psaux/t1decode.c, stc/type1/t1load.c, src/type1/t1tokens.h: + Updated common PostScript type definitions. + Renamed all enumeration values like to uppercase variants: + + t1_token_any => T1_TOKEN_TYPE_ANY + t1_field_cid_info => T1_FIELD_LOCATION_CID_INFO + etc. + + * include/freetype/internal/psglobals.h: Removed. + * include/freetype/internal/pshints.h, src/pshinter/pshglob.h: + Updated. + + * include/freetype/internal/tttypes.h, + include/freetype/internal/sfnt.h, src/base/ftnames.c, + src/cff/cffdrivr.c, src/sfnt/*.c, src/truetype/*.c: Updated + SFNT/TrueType type definitions. + + * include/freetype/freetype.h, include/freetype/internal/ftgloadr.h: + Updating type definitions for the glyph loader. + +2002-03-13 Antoine Leca + + * include/freetype/config/ftoption.h: Changed the automatic + detection of Microsoft C compilers to automatically support 64-bit + integers only since revision 9.00 (i.e. >= Visual C++ 2.0). + +2002-03-08 Werner Lemberg + + * src/base/ftutil.c (FT_Realloc): Use MEM_Set instead of memset. + +2002-03-07 Werner Lemberg + + * src/base/ftdbgmem.c (ft_mem_table_resize, ft_mem_table_new, + ft_mem_table_set, ft_mem_debug_alloc, ft_mem_debug_free, + ft_mem_debug_realloc, ft_mem_debug_done, FT_Alloc_Debug, + FT_Realloc_Debug, FT_Free_Debug): Fix compiler warnings. + * src/base/ftcalc.c (FT_MulFix): Ditto. + * src/cff/cffdrivr.c (cff_get_name_index): Ditto. + * src/cff/cffobjs.c (CFF_Size_Get_Global_Funcs, CFF_Size_Init, + CFF_GlyphSlot_Init): Ditto. + * src/cid/cidobjs.c (CID_GlyphSlot_Init, + CID_Size_Get_Globals_Funcs): Ditto. + * src/type1/t1objs.c (T1_Size_Get_Globals_Funcs, T1_GlyphSlot_Init): + Ditto. + * src/pshinter/pshmod.c (pshinter_interface): Use `static const'. + * src/winfonts/winfnt.c (FNT_Get_Next_Char): Remove unused + variables. + + * include/freetype/internal/psaux.h (T1_Builder_Funcs): Renamed + to... + (T1_Builder_FuncsRec): This. + (T1_Builder_Funcs): New typedef. + (PSAux_Interface): Remove compiler warnings. + * src/psaux/psauxmod.c (t1_builder_funcs), src/psaux/psobjs.h + (t1_builder_funcs): Updated. + + * src/pshinter/pshglob.h (PSH_Blue_Align): Replaced with ... + (PSH_BLUE_ALIGN_{NONE,TOP,BOT}): New defines. + (PSH_AlignmentRec): Updated. + + * include/freetype/internal/ftstream.h (GET_Char, GET_Byte): Fix + typo. + * include/freetype/internal/ftgloadr.h (FT_SubGlyph): Ditto. + * src/base/ftstream (FT_Get_Char): Rename to... + (FT_Stream_Get_Char): This. + + * src/base/ftnames.c (FT_Get_Sfnt_Name): s/index/idx/ -- `index' is + a built-in function in gcc, causing warning messages with gcc 3.0. + * src/autohint/ahglyph.c (ah_outline_load): Ditto. + * src/autohint/ahglobal.c (ah_hinter_compute_blues): Ditto. + * src/cache/ftcmanag.c (ftc_family_table_alloc, + ftc_family_table_free, FTC_Manager_Done, FTC_Manager_Register_Cache): + Ditto. + * src/cff/cffload.c (cff_new_index, cff_done_index, + cff_explicit_index, CFF_Access_Element, CFF_Forget_Element, + CFF_Get_Name, CFF_Get_String, CFF_Load_SubFont, CFF_Load_Font, + CFF_Done_Font): Ditto. + * src/psaux/psobjs.c (PS_Table_Add, PS_Parser_LoadField): Ditto. + * src/psaux/t1decode.c (T1_Decoder_Parse_Charstrings): Ditto. + * src/pshinter/pshrec.c (ps_mask_test_bit, ps_mask_clear_bit, + ps_mask_set_bit, ps_dimension_add_t1stem, ps_hints_t1stem3, + * src/pshinter/pshalgo1.c (psh1_hint_table_record, + psh1_hint_table_record_mask, psh1_hint_table_activate_mask): Ditto. + * src/pshinter/pshalgo2.c (psh2_hint_table_record, + psh2_hint_table_record_mask, psh2_hint_table_activate_mask): Ditto. + * src/sfnt/ttpost.c (Load_Format_20, Load_Format_25, + TT_Get_PS_Name): Ditto. + * src/truetype/ttgload.c (TT_Get_Metrics, Get_HMetrics, + load_truetype_glyph): Ditto. + * src/type1/t1load.c (parse_subrs, T1_Open_Face): Ditto. + * src/type1/t1afm.c (T1_Get_Kerning): Ditto. + * include/freetype/cache/ftcmanag.h (ftc_family_table_free): Ditto. + +2002-03-06 David Turner + + * src/type1/t1objs.c (T1_Face_Init), src/cid/cidobjs.c + (CID_Face_Init): Fixed another bug related to the + ascender/descender/text height of Postscript fonts. + + * src/pshinter/pshalgo2.c (print_zone): Renamed to ... + (psh2_print_zone): This. + * src/pshinter/pshalgo1.c (print_zone): Renamed to ... + (psh1_print_zone): This. + + * include/freetype/freetype.h, include/freetype/internal/ftobjs.h, + src/base/ftobjs.c: Adding the new FT_Library_Version API to return + the library's current version in dynamic links. + * src/base/ftinit.c (FT_Init_FreeType): Updated. + +2002-03-06 Werner Lemberg + + * src/pshinter/pshglob.h (PSH_DimensionRec): s/std/stdw/. + * src/pshinter/pshglob.c (psh_global_scale_widths, + psh_dimension_snap_width, psh_globals_destroy, psh_globals_new): + Ditto. + +2002-03-05 David Turner + + * src/type1/t1objs.c (T1_Face_Init), src/cff/cffobjs.c + (CFF_Face_Init), src/cid/cidobjs.c (CID_Face_Init): Removing the bug + that returned global BBox values in 16.16 fixed format (instead of + integer font units). + + * src/cid/cidriver.c (cid_get_postscript_name): Fixed a bug that + caused the CID driver to return Postscript font names with a leading + slash (`/') as in `/MOEKai-Regular'. + + * src/sfnt/ttload.c (TT_Load_Names), src/sfnt/sfobjs.c (Get_Name), + src/sfnt/sfdriver.c (get_sfnt_postscript_name): Fixed the loader so + that it accepts broken fonts like `foxjump.ttf', which made FreeType + crash when trying to load them. + + Also improved the name table parser to be able to load + Windows-encoded entries before Macintosh or Unicode ones, since it + seems some fonts don't have reliable values here anyway. + + * include/freetype/internal/psnames.h: Add typedef for + `PSNames_Service'. + +2002-03-05 Werner Lemberg + + * builds/unix/aclocal.m4, builds/unix/ltmain.sh: Update to libtool + 1.4.2. + Apply a small patch for AIX to make shared libraries work (this + patch is already in the CVS version of libtool). + + * builds/unix/config.sub, builds/unix/config.guess: Updated to + recent versions. + + * builds/unix/configure.ac: Fix typo + (AC_CONFIG_FILE->AC_CONFIG_FILES). + + * builds/unix/configure: Regenerated. + +2002-02-28 David Turner + + * include/freetype/ftconfig.h: Changed `FT_LOCAL xxxx' to + `FT_LOCAL( xxxx )' everywhere in the source. The same goes for + `FT_LOCAL_DEF xxxx' which is translated to `FT_LOCAL_DEF( xxxxx )'. + + * include/freetype/freetype.h (FREETYPE_MINOR, FREETYPE_PATCH): + Changing version to 2.1.0 to indicate an unstable branch. + Added the declarations of FT_Get_First_Char and FT_Get_Next_Char. + + * src/base/ftobjs.c: Implement FT_Get_First_Char and + FT_Get_Next_Char. + + * include/freetype/t1tables.h: Renaming structure types. This + + typedef T1_Struct_ + { + } T1_Struct; + + becomes + + typedef PS_StructRec_ + { + } PS_StructRec, *PS_Struct; + + typedef PS_StructRec T1_Struct; /* backwards-compatibility */ + + Hence, we increase the coherency of the source code by effectively + using the `Rec' prefix for structure types. + +2002-02-27 David Turner + + * src/sfnt/ttload.c (TT_Load_Names): Simplifying and securing the + names table loader. Invalid individual name entries are now handled + correctly. This allows the loading of very buggy fonts like + `foxjump.ttf' without allocating tons of memory and causing crashes. + + * src/otlayout/otlcommon.h, src/otlayout/otlcommon.c: Adding (still + experimental) code for OpenType Layout tables validation and + parsing. + + * src/type1/t1cmap.h, src/type1/t1cmap.c: Adding (still + experimental) code for Type 1 charmap processing. + + * src/sfnt/ttcmap0.c: New file. It contains a new, still + experimental SFNT charmap processing support. + + * include/freetype/internal/ftobjs.h: Adding validation support as + well as internal charmap object definitions (FT_CMap != FT_CharMap). + +2002-02-24 David Turner + + * Renaming stream functions to the FT__ scheme: + + FT_Seek_Stream => FT_Stream_Seek + FT_Skip_Stream => FT_Stream_Skip + FT_Read_Stream => FT_Stream_Read + FT_Read_Stream_At => FT_Stream_Read_At + FT_Access_Frame => FT_Stream_Enter_Frame + FT_Forget_Frame => FT_Stream_Exit_Frame + FT_Extract_Frame => FT_Stream_Extract_Frame + FT_Release_Frame => FT_Stream_Release_Frame + FT_Get_XXXX => FT_Stream_Get_XXXX + FT_Read_XXXX => FT_Stream_Read_XXXX + + FT_New_Stream( filename, stream ) => + FT_Stream_Open( stream, filename ) + + (The function doesn't create the FT_Stream structure, it simply + initializes it for reading.) + + FT_New_Memory_Stream( library, FT_Byte* base, size, stream ) => + FT_Stream_Open_Memory( stream, const FT_Byte* base, size ) + + FT_Done_Stream => FT_Stream_Close + FT_Stream_IO => FT_Stream_IOFunc + FT_Stream_Close => FT_Stream_CloseFunc + + ft_close_stream => ft_ansi_stream_close (in base/ftsystem.c only) + ft_io_stream => ft_ansi_stream_io (in base/ftsystem.c only) + + * src/base/ftutil.c: New file. Contains all memory and list + management code (previously in `ftobjs.c' and `ftlist.c', + respectively). + + * include/freetype/internal/ftobjs.h: Moving all code related to + glyph loaders to ... + * include/freetype/internal/ftgloadr.h: This new file. + `FT_GlyphLoader' is now a pointer to the structure + `FT_GlyphLoaderRec'. + (ft_glyph_own_bitmap): Renamed to ... + (FT_GLYPH_OWN_BITMAP): This. + * src/base/ftobjs.c: Moving all code related to glyph loaders + to ... + * src/base/ftgloadr.c: This new file. + +2002-02-22 Werner Lemberg + + * include/freetype/internal/ftdebug.h (FT_Trace): Remove comma in + enum to avoid compiler warnings. + +2002-02-21 David Turner + + Modified the debug sub-system initialization. Trace levels can now + be specified within the `FT2_DEBUG' environment variable. See the + comments within `ftdebug.c' for more details. + + * src/base/ftdebug.c: (FT_SetTraceLevel): Removed. + (ft_debug_init): New function. + (ft_debug_dummy): Removed. + Updated to changes in ftdebug.h + + * include/freetype/internal/ftdebug.h: Always define + FT_DEBUG_LEVEL_ERROR if FT_DEBUG_LEVEL_TRACE is defined. + (FT_Assert): Renamed to ... + (FT_ASSERT): This. + Some stuff from ftdebug.h has been moved to ... + + * include/freetype/internal/fttrace.h: New file, to define the trace + levels used for debugging. It is used both to define enums and + toggle names for FT2_DEBUG. + + * include/freetype/internal/internal.h: Updated. + + * src/base/ftobjs.c, src/base/ftstream.c: Updated. + + * include/freetype/internal/ftextend.h, src/base/ftextend.c: + Removed. Both files are now completely obsolete. + * src/base/Jamfile, src/base/rules.mk: Updated. + + * include/freetype/fterrors.h: Adding `#undef FT_ERR_CAT' and + `#undef FT_ERR_XCAT' to avoid warnings with certain compilers (like + LCC). + + * src/pshinter/pshalgo2.c (print_zone): Renamed to ... + (psh2_print_zone): This to avoid errors during compilation of debug + library. + + * src/smooth/ftgrays.c (FT_COMPONENT): Change definition to as + `trace_smooth'. + +2002-02-20 David Turner + + * README: Adding `devel@freetype.org' address for bug reports. + +2002-02-20 Werner Lemberg + + * builds/unix/install.mk (check): New dummy target. + (.PHONY): Add it. + +2002-02-19 Werner Lemberg + + * builds/freetype.mk (FT_CFLAGS): Use $(INCLUDE_FLAGS) first. + + * src/cache/ftccache.c (ftc_cache_resize): Mark `error' as unused + to avoid compiler warning. + * src/cff/cffload.c (CFF_Get_String): Ditto. + * src/cff/cffobjs.c (CFF_StrCopy): Ditto. + * src/psaux/psobjs.c (PS_Table_Done): Ditto. + * src/pcf/pcfread.c (pcf_seek_to_table_type): Ditto. + * src/sfnt/sfdriver.c (get_sfnt_postscript_name): Ditto. + (pcf_get_bitmaps): The same for `sizebitmaps'. + * src/psaux/t1decode.c (T1_Decode_Parse_Charstrings): The same for + `orig_y'. + (t1operator_seac): Comment out more dead code. + * src/pshinter/pshalgo2.c (ps2_hints_apply): Add `DEBUG_HINTER' + conditional. + * src/truetype/ttgload.c (TT_Process_Simple_Glyph, + load_truetype_glyph): Add `TT_CONFIG_OPTION_BYTECODE_INTERPRETER' + conditional. + +2002-02-18 Werner Lemberg + + * src/autohint/ahglyph.c (ah_outline_link_segments): Remove unused + variables. + * src/autohint/ahhint.c (ah_align_serif_edge): Use FT_UNUSED instead + of UNUSED. + * src/autohint/ahmodule.c (ft_autohinter_reset): Ditto. + * src/pshinter/pshrec.c (ps_mask_table_merge): Fix typo in variable + swapping code. + * src/pshinter/pshglob.h (PSH_Blue_Align): Add PSH_BLUE_ALIGN_NONE. + * src/pshinter/pshglob.c (psh_blues_snap_stem): Use it. + * src/pshinter/pshalgo1.c (psh1_hint_table_optimize): Ditto. + * src/pshinter/pshalgo2.c (psh2_hint_align): Ditto. + * include/freetype/internal/ftobjs.h (UNUSED): Removed. + +2002-02-10 Roberto Alameda + + Add support for ISOLatin1 PS encoding. + + * include/freetype/freetype.h (ft_encoding_latin_1): New tag + (`lat1'). + * include/freetype/internal/t1types.h (T1_Encoding_Type): Add + `t1_encoding_isolatin1'. + * src/type1/t1driver.c (Get_Char_Index, Get_Next_Char): Handle + ft_encoding_latin_1. + * src/type1/t1load.c (parse_encoding): Handle `ISOLatin1Encoding'. + * src/type1/t1objs.c (T1_Face_Init): Handle `t1_encoding_isolatin1'. + +---------------------------------------------------------------------------- + +Copyright 2002, 2003, 2004, 2005, 2007, 2008 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, modified, +and distributed under the terms of the FreeType project license, +LICENSE.TXT. By continuing to use, modify, or distribute this file you +indicate that you have read the license and understand and accept it +fully. + + +Local Variables: +version-control: never +coding: utf-8 +End: diff --git a/ChangeLog.22 b/ChangeLog.22 new file mode 100644 index 0000000..4144288 --- /dev/null +++ b/ChangeLog.22 @@ -0,0 +1,2837 @@ +2006-05-12 Werner Lemberg + + + * Version 2.2.1 released. + ========================= + + + Tag sources with `VER-2-2-1'. + +2006-05-12 Werner Lemberg + + * src/tools/docmaker/sources.py (re_source_keywords): Add word + boundary markers. + * src/tools/docmaker/content.py (re_field): Allow `.' in field names + (but not at the beginning or end). + * src/tools/docmaker/tohtml.py (html_header_1): Use `utf-8' charset. + (block_footer): Split into... + (block_footer_start, block_footer_middle, block_footer_end): This to + add navigation buttons. + (HtmlFormatter::block_exit): Updated. + + * include/freetype/*: Many minor documentation improvements (adding + links, spelling errors, etc.). + +2006-05-11 Werner Lemberg + + * README: Minor updates. + + * include/freetype/*: s/scale/scaling value/ where appropriate. + Many other minor documentation improvements. + + * src/tools/docmaker/sources.py (re_italic, re_bold): Handle + trailing punctuation. + * src/tools/docmaker/tohtml.py (HtmlFormatter::make_html_word): Add + warning message for undefined cross references. + Update handling of re_italic and re_bold. + +2006-05-11 Masatake YAMATO + + * builds/unix/ftsystem.c (FT_Stream_Open): Check errno only if + read system call returns -1. + Remove a redundant parenthesis. + +2006-05-10 Werner Lemberg + + * builds/unix/ftsystem.c (FT_Stream_Open): Avoid infinite loop if + given an empty, un-mmap()able file. Reported and suggested fix in + Savannah bug #16555. + + * builds/freetype.mk (refdoc): Write-protect the `docmaker' + directory to suppress generation of .pyc files. According to the + Python docs there isn't a more elegant solution (currently). + + * builds/toplevel.mk (dist): New target which builds .tar.gz, + .tar.bz2, and .zip files. Note that the version number is still + hard-coded. + (do-dist): Sub-target of `dist'. + (CONFIG_GUESS, CONFIG_SUB): New variables. + (.PHONY): Updated. + +2006-05-09 Rajeev Pahuja + + * builds/win32/visualc/freetype.sln, + builds/win32/visualc/freetype.vcproj: Upgraded to VS.NET 2005 from + VS.NET 2003 + Added files ftbbox.c, fttype1.c, ftwinfnt.c, ftsynth.c. + + * builds/win32/visualc/index.html: Updated. + +2006-05-07 Werner Lemberg + + Put version information into the configure script. Reported by Paul + Watson . + + * builds/unix/configure.ac: Renamed to... + * builds/unix/configure.raw: This which now serves (with appropriate + modifications) as a template for configure.ac. + + * version.sed: New script. + + * autogen.sh: Generate configure.ac from configure.raw, using + FREETYPE_MAJOR, FREETYPE_MINOR, and FREETYPE_PATCH from freetype.h. + +2006-05-06 Werner Lemberg + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 1. + + * builds/unix/configure.ac (version_info): Set to 9:10:3. + + * builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, builds/freetype.mk (refdoc), + Jamfile (RefDoc), README: s/220/221/, s/2.2.0/2.2.1/. + Minor updates. + + * docs/CHANGES, docs/VERSION.DLL, docs/PROBLEMS, README.CVS: + Updated. + + * builds/unix/install-sh: Updated from `texinfo' CVS module at + savannah.gnu.org. + + * devel/ftoption.h: Synchronize with + include/freetype/config/ftoption.h. + +2006-05-04 Werner Lemberg + + * src/lzw/ftlzw2.c: Renamed to... + * src/lzw/ftlzw.c: This. + + * src/lzw/Jamfile, src/lzw/rules.mk: Updated. + + * builds/mac/FreeType.m68k_cfm.make.txt, + builds/mac/FreeType.m68k_far.make.txt, + builds/mac/FreeType.ppc_carbon.make.txt, + builds/mac/FreeType.ppc_classic.make.txt: Updated. + +2006-05-03 David Turner + + Allow compilation again with C++ compilers. + + * include/freetype/internal/ftmemory.h (FT_ASSIGNP, + FT_ASSIGNP_INNER): New macros which do the actual assignment, and + which exist in two variants (for C and C++). + Update callers accordingly. + +2006-05-03 Werner Lemberg + + * include/freetype/config/ftoption.h (FT_STRICT_ALIASING): Removed. + +2006-05-02 Werner Lemberg + + * include/freetype/internal/ftmemory.h: s/new/newsz/ (for C++). + (FT_ALLOC): Remove redundant redefinition. + + * builds/compiler/gcc-dev.mk (CFLAGS) [g++]: Don't use + `-Wstrict-prototypes'. + + * src/base/ftstream.c (FT_Stream_EnterFrame): Add cast. + + * include/freetype/config/ftconfig.h (FT_BASE_DEF) [__cplusplus]: + Remove `extern'. + +2006-05-02 David Turner + + Update the memory management functions and macros to safely deal + with array size buffer overflows. This corresponds to attempts to + allocate arrays that are too large. For an example, consider the + following code: + + count = read_uint32_from_file(); array = malloc( sizeof ( Item ) * + count ); for ( nn = 0; nn < count; nn++ ) + array[nn] = read_item_from_file(); + + If `count' is larger than `FT_UINT_MAX/sizeof(Item)', the + multiplication overflows, and the array allocated os smaller than + the data read from the file. In this case, the heap will be + trashed, and this can be used as a denial-of-service attack, or make + the engine crash later. + + The FT_ARRAY_NEW and FT_ARRAY_RENEW macros now ensure that the new + count is no larger than `FT_INT_MAX/item_size', otherwise a new + error code `FT_Err_Array_Too_Large' will be returned. + + Note that the memory debugger now works again when FT_DEBUG_MEMORY + is defined. FT_STRICT_ALIASING has disappeared; the corresponding + code is now the default. + + + * include/freetype/config/ftconfig.h (FT_BASE_DEF) [!__cplusplus]: + Don't use `extern'. + + * include/freetype/fterrdef.h (FT_Err_Array_Too_Large): New error + code. + + * include/freetype/internal/ftmemory.h (FT_DEBUG_INNER) + [FT_DEBUG_MEMORY]: New macro. + (ft_mem_realloc, ft_mem_qrealloc): Pass new object size count also. + (ft_mem_alloc_debug, ft_mem_qalloc_debug, ft_mem_realloc_debug, + ft_mem_qrealloc_debug, ft_mem_free_debug): Removed. + (FT_MEM_ALLOC, FT_MEM_REALLOC, FT_MEM_QALLOC, FT_MEM_QREALLOC, + FT_MEM_FREE): Redefine. + (FT_MEM_NEW_ARRAY, FT_MEM_RENEW_ARRAY, FT_MEM_QNEW_ARRAY, + FT_MEM_QRENEW_ARRAY): Redefine. + (FT_ALLOC_MULT, FT_REALLOC_MULT, FT_MEM_QALLOC_MULT, + FT_MEM_QREALLOC_MULT): New macros. Update callers where + appropriate. + (FT_MEM_SET_ERROR): Slightly redefine. + + + * src/base/ftdbgmem.c (_ft_debug_file, _ft_debug_lineno) + [FT_DEBUG_MEMORY]: New global variables, replacing... + (FT_MemTable_Rec) [FT_DEBUG_MEMORY]: Remove `filename' and + `line_no'. Update all callers. + (ft_mem_debug_alloc) [FT_DEBUG_MEMORY]: Avoid possible integer + overflow. + (ft_mem_alloc_debug, ft_mem_realloc_debug, ft_mem_qalloc_debug, + ft_mem_qrealloc_debug, ft_mem_free_debug): Removed. + + * src/base/ftmac.c (read_lwfn): Catch integer overflow. + * src/base/ftrfork.c (raccess_guess_darwin_hfsplus): Ditto. + * src/base/ftutil.c: Remove special code for FT_STRICT_ALIASING. + (ft_mem_alloc, ft_mem_realloc, ft_mem_qrealloc): Rewrite. + + + * include/freetype/ftstream.h (FT_FRAME_ENTER, FT_FRAME_EXIT, + FT_FRAME_EXTRACT, FT_FRAME_RELEASE): Use FT_DEBUG_INNER to report the + place where the frames were entered, extracted, exited or released + in the memory debugger. + + * src/base/ftstream.c (FT_Stream_ReleaseFrame) [FT_DEBUG_MEMORY]: + Call ft_mem_free. + (FT_Stream_EnterFrame) [FT_DEBUG_MEMORY]: Use ft_mem_qalloc. + (FT_Stream_ExitFrame) [FT_DEBUG_MEMORY]: Use ft_mem_free. + +2006-04-30 suzuki toshiya + + * src/base/ftobjs.c (Mac_Read_POST_Resource): Correct pfb_pos + initialization, remove extra cast to copy to pfb_lenpos. This fixes + parsing of PFB fonts with MacOS resource fork (bug introduced + 2003-09-11). Patch provided by Huib-Jan Imbens . + +2006-04-29 Werner Lemberg + + Further C library abstraction. Based on a patch from + msn2@bidyut.com. + + * include/freetype/config/ftstdlib.h (FT_CHAR_BIT, FT_FILE, + ft_fopen, ft_fclose, ft_fseek, ft_ftell, ft_fread, ft_smalloc, + ft_scalloc, ft_srealloc, ft_sfree, ft_labs): New wrapper macros for + C library functions. Update all users accordingly (and catch some + other places where the C library function was used instead of the + wrapper functions). + + * src/base/ftsystem.c: Don't include stdio.h and stdlib.h. + * src/gzip/zutil.h [MSDOS && !(__TURBOC__ || __BORLANDC__)]: Don't + include malloc.h. + + + * builds/unix/unix-def.in (datarootdir): Define, for autoconf 2.59c + and forthcoming versions. + +2006-04-28 Werner Lemberg + + * src/lzw/ftlzw.c, src/lzw/zopen.c, src/lzw/zopen.h: Removed, + obsolete. + +2006-04-27 yi luo + + * builds/win32/visualc/freetype.vcproj: Updated. + +2006-04-26 David Turner + + + * Version 2.2 released. + ======================= + + + Tag sources with `VER-2-2-0'. + +2006-04-26 Werner Lemberg + + * src/psaux/psobjs.c (shift_elements): Don't use FT_Long but + FT_PtrDiff for `delta'. Reported by Céline PILLET + . + +2006-04-21 David Turner + + * include/freetype/ftincrem.h: Documentation updates. + (FT_Incremental_Interface): New typedef. + + * include/freetype/ftmodapi.h, include/freetype/ftglyph.h: + Documentation updates. + + * include/freetype/freetype.h: Documentation update. + (FT_HAS_FAST_GLYPHS): Always set to 0. + + * include/freetype/ftstroke.h, src/base/ftstroke.c (FT_Stroker_New): + Take an FT_Library argument instead of FT_Memory. + + * src/sfnt/ttcmap.c: Remove compiler warnings (gcc-4.0.2). + +2006-04-13 David Turner + + * src/autofit/afloader.c (af_loader_init, af_loader_load_g): Remove + superfluous code in the auto-fitter's loader. + +2006-04-05 Detlef Würkner + + * builds/amiga/makefile, builds/amiga/makefile.os4, + builds/amiga/smakefile: Added FT2_BUILD_LIBRARY define. + +2006-04-03 luoyi + + * builds/compiler/intelc.mk (TE): New variable. + (ANSIFLAGS): Updated. + +2006-04-03 Werner Lemberg + + * builds/exports.mk (clean_symbols_list, clean_apinames): Removed. + (CLEAN): Add $(EXPORTS_LIST) and $(APINAMES_EXE). + (.PHONY): Updated. + + * configure.ac: Minor fixes to improve --help output. + + + * docs/PROBLEMS: New file. + +2006-04-01 David Turner + + * docs/CHANGES: Updated. + + * include/freetype/ftcache.h, include/freetype/config/ftheader.h: + Update documentation comments. + +2006-04-01 Werner Lemberg + + * builds/unix/install.mk (uninstall): Don't handle `cache' + directory which no longer exists. + +2006-03-29 Detlef Würkner + + * src/psaux/psconv.c: Changed some variables which are expected to + hold negative values from `char' to `FT_Char' to allow building with + a compiler where `char' is unsigned by default. + +2006-03-27 David Turner + + * src/sfnt/ttkern.c (tt_face_get_kerning): Fix a serious bug that + causes some programs to go into an infinite loop when dealing with + fonts that don't have a properly sorted kerning sub-table. + +2006-03-26 Werner Lemberg + + * src/bdf/bdflib.c (ERRMSG4): New macro. + (_bdf_parse_glyphs): Handle invalid BBX values. + + * include/freetype/fterrdef.h (FT_Err_Bbx_Too_Big): New error + macro. + +2006-03-23 Werner Lemberg + + * docs/CHANGES: Updated. + + + * src/tools/docmaker/tohtml.py (html_header_2): Add horizontal + padding between table elements. + (html_header_1): The `DOCTYPE' comment must be in uppercase. + (make_html_para): Convert `...' quotations into real left and + right single quotes. + Use `para_header' and `para_footer'. + + * src/tools/docmaker/sources.py (re_bold, re_italic): Accept "'" + also. + +2006-03-23 David Turner + + Add FT_Get_SubGlyph_Info API to retrieve subglyph data. Note that + we do not expose the FT_SubGlyphRec structure. + + * include/freetype/internal/ftgloadr.h (FT_SUBGLYPH_FLAGS_*): Moved + to... + * include/freetype/freetype.h (FT_SUBGLYPH_FLAGS_*): Here. + (FT_Get_SybGlyph_Info): New declaration. + + * src/base/ftobjs.c (FT_Get_SubGlyph_Info): New function. + + + * src/autofit/afloader.c (af_loader_load_g): Compute lsb_delta and + rsb_delta correctly in edge cases. + +2006-03-22 Werner Lemberg + + * src/cache/ftccache.c, (ftc_node_mru_up, FTC_Cache_Lookup) + [!FTC_INLINE]: Compile conditionally. + * src/cache/ftccache.h: Updated. + + * src/cache/ftcglyph.c (FTC_GNode_Init, FTC_GNode_UnselectFamily, + FTC_GNode_Done, FTC_GNode_Compare, FTC_Family_Init, FTC_GCache_New): + s/FT_EXPORT/FT_LOCAL/. + (FTC_GCache_Init, FTC_GCache_Done): Commented out. + (FTC_GCache_Lookup) [!FTC_INLINE]: Compile conditionally. + s/FT_EXPORT/FT_LOCAL/. + * src/cache/ftcglyph.h: Updated. + + * src/cache/ftcimage.c (FTC_INode_Free, FTC_INode_New): + s/FT_EXPORT/FT_LOCAL/. + (FTC_INode_Weight): Commented out. + * src/cache/ftcimage.h: Updated. + + * src/cache/ftmanag.c (FTC_Manager_Compress, + FTC_Manager_RegisterCache, FTC_Manager_FlushN): + s/FT_EXPORT/FT_LOCAL/. + * src/cache/ftmanag.h: Updated. + + * src/cache/ftcsbits.c (FTC_SNode_Free, FTC_SNode_New, + FTC_SNode_Compare): s/FT_EXPORT/FT_LOCAL/. + (FTC_SNode_Weight): Commented out. + * src/cache/ftcsbits.h: Updated. + +2006-03-22 Werner Lemberg + + * src/cache/ftccache.c, src/cache/ftccache.h (FTC_Node_Destroy): + Remove, unused. + + * src/cache/ftccmap.h: Remove, unused. + + * src/cache/rules.mk (CACHE_DRV_H): Remove ftccmap.h. + +2006-03-21 Zhe Su + + * src/base/ftoutln.c (FT_Outline_Get_Orientation): Improve + algorithm. + +2006-03-21 Werner Lemberg + + * src/cff/cfftypes.h (CFF_CharsetRec): Add `max_cid' member. + + * src/cff/cffload.c (cff_charset_load): Set `charset->max_cid'. + + * src/cff/cffgload.c (cff_slot_load): Change type of third parameter + to `FT_UInt'. + Check range of `glyph_index'. + * src/cff/cffgload.h: Updated. + + + * src/sfnt/ttcmap.c (tt_face_build_cmaps): Handle invalid offset + correctly. + + + * builds/freetype.mk (refdoc), docs/CHANGES, Jamfile (RefDoc), + README: s/2.1.10/2.2/. + +2006-03-21 David Turner + + * src/autofit/aflatin.c (af_latin_metrics_scale): Fix small bug + that crashes the auto-hinter (introduced by previous patch). + +2006-03-20 Werner Lemberg + + * builds/freetype.mk (CACHE_DIR, CACHE_H): Remove. + (FREETYPE_H): Updated. + + * src/cache/rules.mk (CACHE_H_DIR): Remove. + (CACHE_DRV_H): Updated. + +2006-03-20 David Turner + + * include/freetype/cache/ftccache.h, + include/freetype/cache/ftccmap.h, include/freetype/cache/ftcglyph.h + include/freetype/cache/ftcimage.h include/freetype/cache/ftcmanag.h + include/freetype/cache/ftcmru.h include/freetype/cache/ftcsbits.h: + Move to... + + * src/cache/ftccache.h, src/cache/ftcglyph.h, src/cache/ftcimage.h, + src/cache/ftcsbits.h, src/cache/ftcmanag.h, src/cache/ftccmap.h, + src/cache/ftcmru.h: This new location. + Update declarations according to the changes in the corresponding + source files. + + Note that these files are not used by FreeType clients; all public + APIs of the cache module have been already moved to + `include/freetype/ftcache.h', and all FT_CACHE_INTERNAL_XXXX_H + macros resolve to it. + + Reason for the move is to allow modifications of the internals + without interferences with rogue clients. Note that there are no + known clients that access the cache internals at the moment. + + * builds/unix/install.mk (install): Don't install headers from + $(CACHE_H). + Remove `freetype/cache' from the target directory. + + * include/freetype/config/ftheader.h (FT_CACHE_MANAGER_H, + FT_CACHE_INTERNAL_MRU_H, FT_CACHE_INTERNAL_MANAGER_H, + FT_CACHE_INTERNAL_CACHE_H, FT_CACHE_INTERNAL_GLYPH_H, + FT_CACHE_INTERNAL_IMAGE_H, FT_CACHE_INTERNAL_SBITS_H): Point to + FT_CACHE_H. + + * src/cache/ftcbasic.c, src/cache/ftccache.h, src/cache/ftccback.h, + src/cache/ftccmap.c, src/cache/ftcglyph.c, src/cache/ftcglyph.h, + src/cache/ftcimage.c, src/cache/ftcimage.h, src/cache/ftcmanag.c, + src/cache/ftcmanag.h, src/cache/ftcmru.h, src/cache/ftcsbits.c, + src/cache/ftcsbits.h: Don't use the FT_CACHE_INTERNAL_XXX_H macros + but include the headers directly (which are now in `src/cache'). + + * src/cache/ftccache.c: Don't use the FT_CACHE_INTERNAL_XXX_H + macros but include the headers directly. + (FTC_Cache_Init, FTC_Cache_Done, FTC_Cache_NewNode, + FTC_Cache_Lookup, FTC_Cache_RemoveFaceID): Declare as FT_LOCAL_DEF. + + * src/cache/ftccache.c: Don't use the FT_CACHE_INTERNAL_XXX_H + macros but include the headers directly. + (FTC_MruNode_Prepend, FTC_MruNode_Up, FTC_MruNode_Remove, + FTC_MruList_Init, FTC_MruList_Reset, FTC_MruList_Done, + FTC_MruList_New, FTC_MruList_Remove, FTC_MruList_RemoveSelection): + Declare as FT_LOCAL_DEF. + (FTC_MruListFind, FTC_MruList_Lookup) [!FTC_INLINE]: Compile + conditionally. + Declare as FT_LOCAL_DEF. + + + * builds/win32/visualc/freetype.dsp: Update project file, add + missing base source files (ftstroke.c, ftxf86.c, etc.). + + + * src/autofit/afcjk.c, src/autofit/aflatin.c, src/base/ftobjs.c, + src/cff/cffobjs.c, src/cid/cidobjs.c, src/pfr/pfrobjs.c, + src/sfnt/sfobjs.c, src/sfnt/ttmtx.c, src/type1/t1afm.c, + src/type1/t1objs.c: Remove compiler warnings when building with + Visual C++ 6 and /W4. + + * src/autofit/aflatin.c (af_latin_hints_init): Disable horizontal + hinting for italic/oblique fonts. + + + + * src/truetype/ttpload.c, src/truetype/ttpload.h + (tt_face_get_device_metrics): Change second argument to `FT_UInt'. + +2006-03-06 David Turner + + * src/cache/ftcmanag.c (FTC_Manager_Lookup_Size): Prevent crashes in + Mozilla/FireFox print preview in Ubuntu Hoary. + +2006-02-28 Chia-I Wu + + * src/base/ftutil.c (ft_mem_qalloc) [FT_STRICT_ALIASING]: Do not + return error when size == 0. + +2006-02-28 Chia-I Wu + + * src/base/ftobjs.c (FT_Done_Library): Remove modules in reverse + order so that type42 module is removed before truetype module. This + avoids double free in some occasions. + +2006-02-28 David Turner + + * Release candidate VER-2-2-0-RC4. + ---------------------------------- + + * docs/CHANGES: Documentation updates. + +2006-02-28 suzuki toshiya + + * modules.cfg (BASE_EXTENSIONS): Compile in ftgxval.c by default to + build ftvalid in ft2demos. It works as dummy ABI if gxvalid is not + built. + +2006-02-27 Werner Lemberg + + * include/freetype/cache/ftccache.h + [FT_CONFIG_OPTION_OLD_INTERNALS]: Remove declaration of + ftc_node_done. + + * src/cache/ftccache.c (ftc_node_destroy) + [!FT_CONFIG_OPTION_OLD_INTERNALS]: Mark as FT_LOCAL_DEF. This + should now fix all possible compilation options. + +2006-02-27 David Turner + + * src/base/ftutil.c (ft_mem_alloc, ft_mem_qalloc, ft_mem_realloc, + ft_mem_qrealloc): Return an error if a negative size is passed in + parameters. + + * src/cache/ftccache.c (ftc_node_destroy): Mark as FT_BASE_DEF since + it needs to be exported for rogue clients. + + * src/pshinter/pshglob.c (psh_blues_set_zones_0): Prevent problems + with malformed fonts which have an odd number of blue values (these + are broken according to the specs). + + * src/cff/cffload.c (cff_subfont_load), src/type1/t1load.c + (T1_Open_Face): Modify the loaders to force even-ness of + `num_blue_values'. + + (cff_index_access_element): Ignore invalid entries in index files. + +2006-02-27 Chia-I Wu + + * src/base/ftobjs.c (FT_Set_Char_Size): Check the case where width + or height is 0. + +2006-02-27 suzuki toshiya + + * builds/mac/FreeType.m68k_cfm.make.txt, + builds/mac/FreeType.m68k_far.make.txt, + builds/mac/FreeType.ppc_carbon.make.txt, + builds/mac/FreeType.ppc_classic.make.txt: Update to new header + inclusion introduced on 2006-02-16. + +2006-02-27 Chia-I Wu + + * src/base/ftobjs.c (GRID_FIT_METRICS): New macro. + (ft_glyphslot_grid_fit_metrics, FT_Load_Glyph) [GRID_FIT_METRICS]: + Re-enable glyph metrics grid-fitting. It is now done in the base + layer. + (FT_Set_Char_Size, FT_Set_Pixel_Sizes): Make sure the width and + height are not too small or too large, just like we were doing in + 2.1.10. + + * src/autofit/afloader.c (af_loader_load_g): The vertical metrics + are not scaled. + +2006-02-26 Werner Lemberg + + * docs/release: Minor additions and clarifications. + + * docs/CHANGES: Updated to reflect many fixes for backwards + compatibility. Still incomplete. + +2006-02-26 David Turner + + * src/base/ftobjs.c (ft_recompute_scaled_metrics): Re-enable + conservative rounding of metrics to avoid breaking clients like + Pango (see http://bugzilla.gnome.org/show_bug.cgi?id=327852). + +2006-02-25 Werner Lemberg + + * devel/ftoption.h: Synchronize with + include/freetype/config/ftoption.h. + + * src/cache/ftccache.c (ftc_node_destroy): Use FT_LOCAL_DEF (again). + +2006-02-25 David Turner + + Fix compiler warnings as well as C++ compilation problems. + Add missing prototypes. + + * src/autofit/afcjk.c, src/base/ftobjs.c, src/base/ftutil.c, + src/bdf/bdfdrivr.c, src/cff/cffcmap.c, src/cff/cffobjs.c, + src/psaux/afmparse.c,, src/psaux/t1cmap.c, src/smooth/ftgrays.c + src/tools/apinames.c, src/truetype/ttdriver.c: Add various casts, + initialize variables, and decorate functions with FT_CALLBACK_DEF, + etc., to fix compiler warnings (and C++ compiling errors). + + * src/cache/ftcbasic.c: Fix `-Wmissing-prototypes' warnings with + gcc. + + * builds/unix/ftsystem.c: Don't include FT_INTERNAL_OBJECTS_H but + FT_INTERNAL_STREAM_H. + + * src/base/ftsystem.c: Include FT_INTERNAL_STREAM_H. + + * include/freetype/config/ftheader.h (FT_PFR_H): New macro. + + * include/freetype/config/ftoption.h (FT_STRICT_ALIASING): Don't + define for C++. + + * include/freetype/internal/services/svotval.h: Don't include + FT_OPENTYPE_VALIDATE_H but FT_INTERNAL_VALIDATE_H. + + * include/freetype/internal/services/svpfr.h: Include FT_PFR_H. + + * src/gzip/ftgzip.c: Include FT_GZIP_H. + + * src/lzw/ftlzw.c, src/lzw/ftlzw2.c: Include FT_LZW_H. + + * src/sfnt/ttbdf.c (tt_face_load_bdf_props): Rearrange code. + +2006-02-24 Chia-I Wu + + * src/base/ftoutln.c (FT_OUTLINE_GET_CONTOUR, ft_contour_has, + ft_contour_enclosed, ft_outline_get_orientation): Commented out. We + have to wait until `FT_GlyphSlot_Own_Bitmap' is stabilized. + (FT_Outline_Embolden): Use `FT_Outline_Get_Orientation'. + +2006-02-24 Chia-I Wu + + * include/freetype/ftbitmap.h (FT_Bitmap_Embolden): Update + documentation. + + * include/freetype/ftsynth.h (FT_GlyphSlot_Own_Bitmap), + src/base/ftsynth.c (FT_GlyphSlot_Own_Bitmap): New function to make + sure a glyph slot owns its bitmap. It is also marked experimental + and due to change. + (FT_GlyphSlot_Embolden): Undo the last change. It turns out that + rendering the outline confuses some applications. + +2006-02-24 David Turner + + * Release candidate VER-2-2-0-RC3. + ---------------------------------- + + * src/cache/ftcbasic.c: Correct compatibility hack bug. + +2006-02-24 Chia-I Wu + + * include/freetype/freetype.h (FT_Size_RequestRec): Change the type + of `width' and `height' to `FT_Long'. + (enum FT_Size_Request_Type), src/base/ftobjs.c (FT_Request_Metrics): + New request type `FT_SIZE_REQUEST_TYPE_SCALES' to specify the scales + directly. + +2006-02-23 David Turner + + Two BDF patches from Debian libfreetype6 for 2.1.10. + + * src/bdf/bdflib.c (_bdf_parse_glyphs): Fix a bug with zero-width + glyphs. + Fix a problem with large encodings. + + + Fix binary compatibility issues for gnustep-back (GNUstep backend + module) which still crashes under Sarge. + + * src/cache/ftccmap.c (FTC_OldCMapType, FTC_OldCMapIdRec, + FTC_OldCMapDesc) [FT_CONFIG_OPTION_OLD_INTERNALS]: New data + structures and enumerations. + (FTC_CMapCache_Lookup) [FT_CONFIG_OPTION_OLD_INTERNALS]: New + compatibility code. + + * src/cache/ftcbasic.c: Fix a silly bug that prevented our `hack' to + support rogue clients compiled against 2.1.7 to work correctly. + This probably explains the GNUstep crashes with the second release + candidate. + +2006-02-23 Chia-I Wu + + * include/freetype/ftoutln.h (enum FT_Orientation): New value + `FT_ORIENTATION_NONE'. + + * src/base/ftoutln.c (FT_OUTLINE_GET_CONTOUR, ft_contour_has, + ft_contour_enclosed, ft_outline_get_orientation): Another version of + `FT_Outline_Get_Orientation'. This version differs from the public + one in that each part (contour not enclosed in another contour) of the + outline is checked for orientation. + (FT_Outline_Embolden): Use `ft_outline_get_orientation'. + + * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Render the outline and + use bitmap's embolden routine when the outline one failed. + +2006-02-22 Chia-I Wu + + * modules.cfg: Compile in ftotval.c and ftxf86.c by default for ABI + compatibility. + + * src/sfnt/sfobjs.c (sfnt_done_face): Fix a memory leak. + + * src/sfnt/ttsbit0.c (tt_sbit_decoder_load_bit_aligned, + tt_sbit_decoder_load_byte_aligned) [FT_OPTIMIZE_MEMORY]: Fix sbit + loading. (Only tested with bit aligned sbit with x_pos == 0.) + + * src/truetype/ttpload.c (tt_face_load_hdmx, + tt_face_get_device_metrics) [FT_OPTIMIZE_MEMORY]: `hdmx' is not + actually used. + +2006-02-21 David Turner + + Add a new API named FT_Get_TrueType_Engine_Type to determine whether + we have a patented, unpatented, or unimplemented TrueType bytecode + interpreter. + + The FT_Get_Module_Flags API was removed consequently. + + * include/freetype/ftmodapi.h (FT_Module_Get_Flags): Removed. + Replaced with... + (FT_Get_TrueType_Engine_Type): This. + (FT_TrueTypeEngineType): New enumeration. + + * include/freetype/internal/ftserv.h (FT_SERVICE_TRUETYPE_ENGINE_H): + New macro. + + * src/base/ftobjs.c: Include FT_SERVICE_TRUETYPE_ENGINE_H. + (FT_Module_Get_Flags): Removed. Replaced with... + (FT_Get_TrueType_Engine_Type): This. + + * src/truetype/ttdriver.c: Include FT_SERVICE_TRUETYPE_ENGINE_H. + (tt_service_truetype_engine): New service structure. + (tt_services): Register it. + + * include/freetype/internal/services/svtteng.h: New file. + + + * src/sfnt/sfobjs.c (sfnt_load_face): Fix silly bug that prevented + embedded bitmaps from being correctly listed and used. + + + * src/sfnt/ttmtx.c (tt_face_load_hmtx): Disable memory optimization + if FT_CONFIG_OPTION_OLD_INTERNALS is used. The is necessary because + libXfont is directly accessing the HMTX data, unfortunately. + Fix some compiler warnings. + (tt_face_get_metrics): Ditto. + + + * src/pfr/pfrsbit.c (pfr_slot_load_bitmap): Fix handling of + character advances. + +2006-02-20 David Turner + + Support binary compatibility with the X.Org server's Xfont library. + Note that this change unfortunately prevents memory optimizations + for the embedded bitmap loader. + + * include/freetype/internal/sfnt.h (SFNT_Interface): Move + `set_sbit_strike' and `load_sbit_metrics' fields to the location of + version 2.1.8. + + * src/sfnt/sfdriver.c (tt_face_set_sbit_strike_stub): Call + FT_Size_Request. + (sfnt_interface): Updated. + + * src/sfnt/ttsbit.c [FT_CONFIG_OPTION_OLD_INTERNALS]: Don't load + ttsbit0.c. + (tt_load_sbit_metrics): Make `sbit_small_metrics_fields' static. + + * src/sfnt/ttsbit.h: Updated. + +2006-02-17 David Turner + + * builds/unix/unix-cc.in (LINK_LIBRARY): Don't filter out exported + functions anymore. This ensures that all FT_BASE internal functions + are available for dynamic linking. + + * include/freetype/ftcache.h (FTC_IMAGE_TYPE_COMPARE, + FTC_IMAGE_TYPE_HASH), src/cache/ftcbasic.c (FTC_OldFontRec, + FTC_OldImageDescRec, FTC_ImageCache_Lookup, FTC_Image_Cache_New, + FTC_OldImage_Desc, FTC_OLD_IMAGE_FORMAT, ftc_old_image_xxx, + ftc_image_type_from_old_desc, FTC_Image_Cache_Lookup, + FTC_SBitCache_Lookup, FTC_SBit_Cache_New, FTC_SBit_Cache_Lookup) + [FT_CONFIG_OPTION_OLD_INTERNALS]: Try to revive old functions of the + cache sub-system. We try to recognize old legacy signatures with a + gross hack (hope it works). + +2006-02-17 Werner Lemberg + + * devel/ftoption.h: Synchronize with + include/freetype/config/ftoption.h. + +2006-02-16 David Turner + + Massive changes to the internals to respect the internal object + layouts and exported functions of FreeType 2.1.7. Note that the + cache sub-system cannot be fully retrofitted, unfortunately. + + * include/freetype/config/ftoption.h + (FT_CONFIG_OPTION_OLD_INTERNALS): New macro. + + * include/freetype/ftcache.h, include/freetype/cache/ftccache.h, + include/freetype/cache/ftccmap.h, + include/freetype/internal/ftcalc.h, + include/freetype/internal/ftdriver.h, + include/freetype/internal/ftmemory.h, + include/freetype/internal/ftobjs.h, + include/freetype/internal/psaux.h, include/freetype/internal/sfnt.h, + include/freetype/internal/t1types.h, + include/freetype/internal/tttypes.h, src/base/ftcalc.c, + src/base/ftdbgmem.c, src/base/ftobjs.c, src/base/ftutil.c, + src/bdf/bdfdrivr.c, src/cache/ftccache.c, src/cache/ftccback.h, + src/cache/ftcmanag.c, src/cff/cffdrivr.c, src/cid/cidriver.c, + src/pcf/pcfdrivr.c, src/pfr/pfrdrivr.c, src/psaux/psauxmod.c, + src/sfnt/sfdriver.c, src/truetype/ttdriver.c, src/type1/t1driver.c, + src/type1/t1objs.c, src/type42/t42drivr.c, src/winfonts/winfnt.c: + Use FT_CONFIG_OPTION_OLD_INTERNALS to revive old functions and data + structures. + + Move newly added structure elements to the end of the affected + structure and add stub fields (if FT_CONFIG_OPTION_OLD_INTERNALS is + defined) to assure binary compatibility with older FreeType + versions. + Use FT_CONFIG_OPTION_OLD_INTERNALS to add function stubs for old + functions: + + ft_stub_set_char_sizes + ft_stub_set_pixel_sizes + + Rename the following internal functions to provide the old function + names as stubs: + + FT_Alloc -> ft_mem_alloc + FT_QAlloc -> ft_mem_qalloc + FT_Realloc -> ft_mem_realloc + FT_QRealloc -> ft_mem_qrealloc + FT_Free -> ft_mem_free + FT_Alloc_Debug -> ft_mem_alloc_debug + FT_QAlloc_Debug -> ft_mem_qalloc_debug + FT_Realloc_Debug -> ft_mem_realloc_debug + FT_QRealloc_Debug -> ft_mem_qrealloc_debug + FT_Free_Debug -> ft_mem_free_debug + +2006-02-15 Chia-I Wu + + * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Remove + unused `max_points' and `max_contours'. + + * src/cid/cidobjs.c (cid_face_init), src/type1/t1objs.c + (T1_Face_Init), src/type42/t42objs.c (T42_Face_Init): Update. + + * include/freetype/internal/tttypes.h (TT_FaceRec): Remove unused + `max_components'. + + * src/truetype/ttinterp.h (TT_ExecContextRec): Remove unused + `loadSize' and `loadStack'. + + * src/truetype/ttinterp.c (TT_Done_Context, TT_Load_Context), + src/sfnt/ttload.c (tt_face_load_maxp): Update. + + * src/cff/cffobjs.h (cff_size_select), src/sfnt/sfdriver.c + (sfnt_interface), src/truetype/ttdriver.c (tt_size_request): Fix + compiler errors/warnings when TT_CONFIG_OPTION_EMBEDDED_BITMAPS is not + defined. + + * src/sfnt/ttmtx.c (tt_face_load_hmtx, tt_face_get_metrics): Fix + possible segment faults for the non-FT_OPTIMIZE_MEMORY'ed versions. + (finally!) + + + For most OpenType tables, `tt_face_load_xxxx' simply loads the table + and `face->root' is set later in `sfnt_load_face'. Here, we try to + make this work for _all_ tables. Also improve tracing messages. + + * src/sfnt/ttsbit.c, src/sfnt/ttsbit0.c, src/sfnt/ttload.c, + src/sfnt/ttmtx.c: all `tt_face_load_xxxx' should load the table and + then exit. Error handling or setting face->root is done later in + `sfnt_load_face'. + + * src/sfnt/sfobjs.c (sfnt_load_face): Work harder. + Mac bitmap-only fonts are not scalable. + Check that `face->header.Units_Per_EM' is not zero. + (LOAD_, LOADM_): Emit pretty trace messages. + + * src/sfnt/ttsbit0.c (tt_face_load_strike_metrics): Read metrics + from `eblc'. + + * src/sfnt/ttcmap.c (tt_face_build_cmaps), src/sfnt/ttpost.c + (load_format_20, load_format_25, tt_face_get_ps_name): Use + face->max_profile.numGlyphs, instead of face->root.num_glyphs. + +2006-02-14 Werner Lemberg + + * include/freetype/ftoutln.h (FT_Outline_Embolden): Mention in + documentation that negative strength values are possible. + Give an example call. + + * include/freetype/freetype.h (FT_GlyphSlotRec): Improve + documentation of `outline' field. + + * src/sfnt/sfobjc.s: Inckude FT_INTERNAL_DEBUG_H. + * src/sfnt/sfdriver.c: Include ttmtx.h. + + * src/autofit/afcjk.c: Include aftypes.h and aflatin.h. + +2006-02-14 Chia-I Wu + + * src/sfnt/ttmtx.c (tt_face_get_metrics): Typo. + +2006-02-14 Chia-I Wu + + * src/sfnt/ttmtx.c (tt_face_load_hhea, tt_face_load_hmtx): Simply + return error if table is missing. + Check table length in non-FT_OPTIMIZE_MEMORY'ed `tt_face_load_hmtx'. + + * src/sfnt/sfobjs.c (sfnt_load_face): Take care of missing metrics + tables. The last change makes Mac bitmap-only font not load and + this fixes it. + + * src/truetype/ttgload.c (load_truetype_glyph): Fix compilation + error when FT_CONFIG_OPTION_INCREMENTAL is defined. + +2006-02-13 Chia-I Wu + + Clean up the SFNT_Interface. In this final pass, `load_hmtx' is + split from `load_hhea'. + + * include/freetype/internal/sfnt.h, src/sfnt/sfdriver.c, + src/sfnt/ttmtx.c, src/sfnt/ttmtx.h: Split `hmtx' from `hhea'. + + * src/sfnt/sfobjs.c (sfnt_load_face): Update. + +2006-02-13 Chia-I Wu + + * src/sfnt/ttmtx.h, src/sfnt/ttmtx.c: Why are there two copies of + code... + +2006-02-13 Chia-I Wu + + Clean up the SFNT_Interface. In this pass, we want to treat the + font directory (offset table and table directory) as a normal table + like the others. This also means that TTCs are no longer recognized + there but in `init_face'. + + * include/freetype/internal/sfnt.h (SFNT_Interface), + src/sfnt/sfdriver.c: `load_sfnt_header' and `load_directory' are + combined and renamed to `load_font_dir'. + + * src/sfnt/ttload.h, src/sfnt/ttload.c: + s/sfnt_dir_check/check_table_dir/. + `sfnt_init' is moved to sfobjs.c and renamed to `sfnt_open_font'. + `tt_face_load_sfnt_header' and `tt_face_load_directory' are combined + and renamed to `tt_face_load_font_dir'. + + * src/sfnt/sfobjs.c (sfnt_init_face): Recognize TTC here. + +2006-02-13 Chia-I Wu + + Clean up the SFNT_Interface. Table loading functions are now named + after the tables' tags; `hdmx' is TrueType-specific and thus the + code is moved to the truetype module; `get_metrics' is moved here + from the truetype module so that the code can be shared with the cff + module. + + This pass involves no real changes. That is, the code is moved + verbatim mostly. The only exception is the return value of + `tt_face_get_metrics'. + + * include/freetype/internal/sfnt.h, src/sfnt/rules.mk, + src/sfnt/sfdriver.c, src/sfnt/sfnt.c, src/sfnt/sfobjs.c, + src/sfnt/ttload.c, src/sfnt/ttload.h, src/sfnt/ttsbit.c, + src/sfnt/ttsbit.h, src/sfnt/ttsbit0.c: Clean up the SFNT_Interface. + + * src/sfnt/ttmtx.c, src/sfnt/ttmtx.h: New files. Metrics-related + tables' loading and parsing code is moved to here. + Move `tt_face_get_metrics' here from the truetype module. The + return value is changed from `void' to `FT_Error'. + + * include/freetype/internal/fttrace.h: New trace: ttmtx. + + * src/truetype/ttpload.c, src/truetype/ttpload.h: `hdmx' loading and + parsing code is moved here. + New function `tt_face_load_prep' split from `tt_face_load_fpgm'. + `tt_face_load_fpgm' returns `FT_Err_Ok' if `fpgm' doesn't exist. + + * src/cff/cffgload.c, src/cff/cffobjs.c: Update. + + * src/truetype/ttgload.c, src/truetype/ttobjs.c: Update. + +2006-02-11 Chia-I Wu + + * src/autofit/afcjk.c (af_cjk_metrics_init): Fix a stupid bug... + + * src/autofit/aflatin.c (af_latin_metrics_init_widths): Use + AF_LatinMetricsRec as the dummy metrics because we cast the metrics + to it later in `af_latin_hints_link_segments'. + +2006-02-11 Chia-I Wu + + * include/freetype/config/ftoption.h (AF_CONFIG_OPTION_CJK): #define + to enable autofit CJK script support. (#define'd by default.) + + * src/autofit/aflatin.h (AF_LATIN_CONSTANT): New macro. + + * src/autofit/aflatin.c (af_latin_metrics_init_widths): Make sure + that `edge_distance_threshold' is always set. + (af_latin_hints_link_segments): Potential divide-by-zero bug. + Use latin constant in the scoring formula. + + * src/autofit/afcjk.c: Minor updates due to the above three changes. + + * docs/TODO, docs/CHANGES: Updated. + +2006-02-09 Chia-I Wu + + Introduce experimental autofit CJK module based on akito's autohint + patch. You need to #define AF_MOD_CJK in afcjk.c to enable it. + + * src/autofit/afglobal.c, src/autofit/afcjk.h, src/autofit/afcjk.c, + src/autofit/rules.mk, src/autofit/autofit.c, src/autofit/aftypes.h: + Add CJK module based on akito's autohint patch. + + * src/autofit/afhints.h (AF_SegmentRec): New field `len' for the + overlap length of the segments. + (AF_SEGMENT_LEN, AF_SEGMENT_DIST): New macros. + + * src/autofit/aflatin.h (af_latin_metrics_init_widths), + src/autofit/aflatin.c (af_latin_metrics_init_widths): Made + `FT_LOCAL'. + Use the character given by the caller. + (af_latin_metrics_init_widths, af_latin_hints_link_segments): Scale + the thresholds. + + * src/autofit/afloader.c (af_loader_load_g): Respect + AF_SCALER_FLAG_NO_ADVANCE. + +2006-02-09 Werner Lemberg + + * src/cid/cidparse.c (cid_parse_new): Remove shadowing variable. + +2006-02-09 suzuki toshiya + + * src/cid/cidparse.c (cid_parse_new): Fix for abnormally short or + broken CIDFont. Reported by Taek Kwan(TK) Lee (see ft-devel + 2005-11-02). + +2006-02-08 suzuki toshiya + + * builds/unix/configure.ac: Fix bug for `--with-old-mac-fonts' + option on UNIX platform. It has been broken since 2006-01-11. + +2006-02-01 Werner Lemberg + + * src/otvalid/module.mk: s/otvalid_module_class/otv_module_class/. + * src/gxvalid/module.mk: s/gxvalid_module_class/gxv_module_class/. + + * builds/unix/unixddef.mk: Actually do define PLATFORM (fixing + change from 2006-01-31). + (TOP_DIR, OBJ_DIR): Update. + + * builds/unix/install.mk (install): Fix path for ftmodule.h. + + * Makefile, *.mk, builds/unix/unix-cc.in, builds/unix-def.in: Use + `?=' where appropriate. + + * builds/detect.mk (TOP_DIR), builds/os2/os2-dev.mk (TOP_DIR), + builds/win32/w32-dev.mk (TOP_DIR): Removed. Defined elsewhere. + +2006-01-31 Werner Lemberg + + Implement new, simplified module selection. With GNU make it is now + sufficient to modify a single file, `modules.cfg', to control the + inclusion of modules and base extension files. + + This change also fixes the creation of ftmodule.h; it now depends on + `modules.cfg' and thus is rebuilt only if necessary. + + Finally, a version of `ftoption.h' in OBJ_DIR is preferred over the + default location. + + * modules.cfg: New file. + + * builds/freetype.mk: Don't include `modules.mk'. + Include all `rules.mk' files as specified in `modules.cfg'. + (FTOPTION_FLAG, FTOPTION_H): New variables. + (FT_CFLAGS): Add macro definition for FT_CONFIG_MODULES_H. + Add FTOPTION_FLAG. + ($(FT_INIT_OBJ)): Don't use FT_MODULE_LIST. + (CONFIG_H): Add FTMODULE_H and FTOPTION_H. + (INCLUDES): Add DEVEL_DIR. + (INCLUDE_FLAGS, FTSYS_SRC, FTSYS_OBJ, FTDEBUG_SRC, FTDEBUG_OBJ, + OBJ_M, OBJ_S): Use `:=', not `='. + (remove_ftmodule_h): New phony target to delete `ftmodule.h'. + (distclean): Add remove_ftmodule_h. + + * builds/modules.mk: (MODULE_LIST): Removed. + (make_module_list, clean_module_list): Replace targets + with... + (FTMODULE_H_INIT, FTMODULE_H_CREATE, FTMODULE_H_DONE): New + variables. Reason for the change is that it is not possible to have + a phony prerequisite which is run only if the target file must be + rebuilt (phony prerequisites act like subroutines and are *always* + executed). We only want to rebuild `ftmodule.h' if `module.cfg' is + changed. + Update all callers. + ($FTMODULE_H)): Rule to create `ftmodule.h', depending on + `modules.cfg'. + + * builds/toplevel.mk: Rewrite and simplify module handling. + (MODULES_CFG, FTMODULE_H): New variables. + Include MODULES_CFG. + (MODULES): New variable to include all `module.mk' and `rules.mk' + files. We no longer use make's `wildcard' function for this. + + * Makefile (USE_MODULES): Remove. Update all users. + (OBJ_DIR): Define it here. + + * src/*/module.mk: Change + + make_module_list: foo + foo: ... + + to + + FTMODULE_H_COMMANDS += FOO + define FOO + ... + endef + + in all files. `FTMODULE_H_COMMANDS' is used in `FTMODULE_H_CREATE'. + + * src/base/rules.mk (BASE_EXT_SRC): Use BASE_EXTENSIONS. + + * builds/unix/detect.mk (setup): Always execute `configure' script. + (have_mk): Rename to... + (have_Makefile): This. + Don't use `strip' function. + + * builds/unix/unix.mk: Include `install.mk' only if BUILD_PROJECT is + defined. + (have_mk): Don't use `strip' function. + Test for unix-def.mk in OBJ_DIR, not BUILD_DIR (and invert the test + accordingly). + + * builds/unix/install.mk (install, uninstall): Handle `ftmodule.h'. + + * builds/os2/os2-dev.mk, builds/unix/unix-dev.mk, + builds/win32/w32-bccd.mk, builds/win32/w32-dev.mk: Don't define + BUILD_DIR but DEVEL_DIR for development header files. + + * builds/ansi/ansi-def.mk (TOP_DIR, OBJ_DIR), + builds/beos/beos-def.mk (TOP_DIR, OBJ_DIR), builds/unix/unix-def.in + (TOP_DIR, OBJ_DIR): Removed. Defined elsewhere. + + * builds/dos/dos-def.mk (OBJ_DIR), builds/os2/os2-def.mk (OBJ_DIR), + builds/win32/win32-def.mk (OBJ_DIR): Removed. Defined elsewhere. + + * builds/unix/unixddef.mk: Don't define BUILD_DIR but DEVEL_DIR for + development header files. + Don't define PLATFORM. + + * configure: Copy `modules.cfg' to builddir if builddir != srcdir. + Update snippet taken from autoconf's m4sh.m4 to current CVS version. + Be more verbose. + + * include/freetype/config/ftmodule.h: Add comments -- this file is + no longer used if FreeType is built with GNU make. + + * docs/CHANGES, docs/CUSTOMIZE, docs/INSTALL, docs/INSTALL.ANY, + docs/INSTALL.GNU, docs/INSTALL.UNX: Document new build mechanism. + Other minor updates. + + * modules.txt: Removed. Contents included in `modules.cfg'. + + + * include/freetype/internal/ftmemory.h (FT_QAlloc_Debug, + FT_Free_Debug) [FT_STRICT_ALIASING]: Fix typos. + + * src/base/ftdbgmem.c (FT_Alloc_Debug, FT_Realloc_Debug, + FT_QAlloc_Debug, FT_QRealloc_Debug, FT_Free_Debug) + [FT_STRICT_ALIASING]: Implement. + +2006-01-31 Chia-I Wu + + * src/cff/cffobjs.c (cff_face_init), src/cid/cidobjs.c + (cid_face_init), src/pfr/pfrobjs.c (pfr_face_init), + src/type1/t1objs.c (T1_Face_Init): Set face->height to MAX(1.2 * + units_per_EM, ascender - descender). + +2006-01-31 Chia-I Wu + + * include/freetype/internal/t1types.h (AFM_FontInfo), + src/psaux/afmparse.c, src/tools/test_afm.c: Read `FontBBox', + `Ascender', and `Descender' from an AFM. + + * src/type1/t1afm.c (T1_Read_Metrics): Use the metrics from the AFM. + + * include/freetype/freetype.h (FT_FaceRec): Mention that fields may + be changed after file attachment. + +2006-01-28 Werner Lemberg + + * src/*/module.mk (.PHONY): Add. + +2006-01-27 Werner Lemberg + + * README, docs/FTL.TXT: Fix email address for bug reports. + Other minor formatting. + + * devel/ftoption.h: Synchronize with + include/freetype/config/ftoption.h. + + * src/autofit/module.mk (add_autofit_module), src/bdf/module.mk + (add_bdf_module), src/type42/module.mk (add_type42_driver): Fix + whitespace. + + * src/smooth/module.mk (add_smooth_renderer): Add lcd and lcdv + renderer classes. + +2006-01-27 David Turner + + * builds/unix/configure.ac: Fix build problem on Cygwin. + + * builds/unix/install.mk (install): Don't install the internal + headers, and remove existing ones if found in the target install + directory. + + * src/autofit/afwarp.c: Add simple #ifdef to prevent compilation + if the warp hinter isn't active (it shouldn't, still experimental). + + * Jamfile, include/freetype/config/ftmodule.h: Remove `gxvalid' + and `otvalid' from the list of modules that are linked statically + to a given FreeType library. Functionality has been moved to the + `ftvalid' CVS module. + + Note also that current Make-based build system still compiles the + modules though. + + * include/freetype/config/ftoption.h (FT_STRICT_ALIASING): New macro + which controls the definitions of the memory management functions to + avoid warnings with recent versions of GCC. This macro is only here + to be disabled, in case we detect problems with the new scheme. + + NOTE: Disable macro to use the memory debugger -- this will be fixed + later! + + * include/freetype/internal/ftmemory.h, src/base/ftutil.c (FT_Alloc, + FT_QAlloc, FT_Realloc, FT_QRealloc, FT_Free) [FT_STRICT_ALIASING]: + New versions. + + + * builds/win32/visualc/freetype.dsp: Updating project file to + define FT2_BUILD_LIBRARY, and remove gxvalid + otvalid modules from + compilation. + + + * builds/freetype.mk (FT_CFLAGS), Jamfile (DEFINES): Define the + macro FT2_BUILD_LIBRARY when compiling the library. + + * include/freetype/config/ftheader.h: Remove inclusions of internal + headers except if the macro FT2_BUILD_LIBRARY is defined. + + + * include/freetype/internal/psaux.h (AFM_KernPair, AFM_TrackKern, + AFM_FontInfo): Move structure declarations to... + * include/freetype/internal/t1types.h: This file. + + + * (many files): Fix compiler warnings. + Various minor reorganizations. + + + * src/cff/cffload.c (cff_font_done): Don't free static array + `subfonts'. + + * src/otvalid/otvcommn.c (otv_ClassDef_validate), + src/otvalid/otvgpos.c (otv_x_sxy): Fix debugging information. + + + Get rid of writable static variables (i.e., the string table) in + afmparse, and fix compilation in FT2_MULTI mode. + + * src/psaux/afmparse.c: Include ft2build.h and FT_FREETYPE_H. + (AFM_MAX_ARGUMENTS): Define... + * src/psaux/afmparse.h: Here. + * src/psaux/Jamfile (_sources): Add afmparse. + + * src/psaux/psconv.c: Include psconv.h. + + * src/type1/t1afm.c: Don't include FT_INTERNAL_TYPE1_TYPES_H but + FT_INTERNAL_POSTSCRIPT_AUX_H. + * src/type1/t1afm.h: Include FT_INTERNAL_TYPE1_TYPES_H. + +2006-01-23 Chia-I Wu + + * include/freetype/freetype.h (FT_Select_Size): Rename the second + argument from `idx' to `strike_index'. + (FT_Size_Request_Type): Add FT_SIZE_REQUEST_TYPE_MAX to the end of + this enum. + + * include/freetype/internal/ftobjs.h (FT_REQUEST_WIDTH, + FT_REQUEST_HEIGHT): New macros to get the width and height of a + request, in fractional pixels. + + * include/freetype/internal/ftobjs.h (FT_Select_Metrics, + FT_Request_Metrics), src/base/ftobjs.c (FT_Select_Metrics, + FT_Request_Metrics): New base functions to set the font metrics. They + were part of FT_Select_Size/FT_Request_Size and are made independent + functions so that metrics are not set again and again. + + * src/base/ftobjs.c (FT_Select_Size, FT_Request_Size): Metrics are set + only when driver's size_select/size_request is NULL. That is, drivers + should set the metrics themselves. + (FT_Match_Size): Round before matching. This was what we did and it + does cause some problems without rounding. + + * src/cff/cffobjs.c (cff_size_select), src/truetype/ttdriver.c + (tt_size_select): Set the font metrics. + s/index/strike_index/. + The scaled metrics are always preferred over strikes' metrics, even + when some strike is selected. This is done because the strikes' + metrics are not reliable, e.g., the sign of the descender is wrong for + some fonts. + + * src/cff/cffobjs.c (cff_size_request), src/truetype/ttdriver.c + (tt_size_request): Set the font metrics. + Call cff_size_select/tt_size_select when some strike is matched. + + * src/bdf/bdfdrivr.c, src/cff/cffobjs.c, src/cid/cidobjs.c, + src/pcf/pcfdrivr.c, src/truetype/ttdriver.c, src/type1/t1objs.c, + src/type1/t1objs.h, src/type42/t42objs.c, src/winfonts/winfnt.c: + Set the font metrics. + s/index/strike_index/. + + * src/tools/test_afm.c, src/psaux/psconv.c: Older versions of these + files were committed. Just a catch-up. + (PS_Conv_ToFixed): Remove the `goto'. + (PS_Conv_ASCIIHexDecode, PS_Conv_EexecDecode): Speed up a little. + + * src/sfnt/ttsbit.c (tt_face_load_sbit_strikes, + tt_face_load_strike_metrics), src/sfnt/ttsbit0.c + (tt_face_load_sbit_strikes, tt_face_load_strike_metrics): The + advertised metrics in `available_sizes' are different from those + actually used. + +2006-01-23 Chia-I Wu + + * src/psaux/psaux.c src/psaux/psauxmod.c src/type1/t1driver.c: Make + AFM parser optional, controlled by `T1_CONFIG_OPTION_NO_AFM'. + +2006-01-22 Werner Lemberg + + * builds/unix/install-sh, builds/unix/mkinstalldirs: Updated from + `texinfo' CVS module at savannah.gnu.org. + +2006-01-21 Werner Lemberg + + * src/autofit/rules.mk (AUTOF_DRV_SRC): Add afwarp.c. + + * src/autofit/afloader.c (af_loader_load_g): Move AF_USE_WARPER up + to avoid compiler warnings. + + * src/autofit/afwarp.c (af_warper_compute_line_best): Remove + shadowing variable declarations. + Fix warning parameters and replace printf with AF_LOG. + (af_warper_compute): Remove unused variable. + +2006-01-20 David Turner + + Adding experimental implementation of `warp hinting' (new hinting + algorithm for gray-level and LCD rendering). It is disabled by + default, you need to #define AF_USE_WARPER in aftypes.h. + + * src/autofit/afhints.c (af_glyph_hints_scale_dim) [AF_USE_WARPER]: + New function. + * src/autofit/afhints.h: Updated. + + * src/autofit/aflatin.c [AF_USE_WARPER]: Include afwarp.h. + (af_latin_hints_init) [AF_USE_WARPER]: Reset mode to + FT_RENDER_MODE_NORMAL if an LCD mode is selected. + (af_latin_hints_apply) [AF_USE_WARPER]: Call af_warper_compute + appropriately. + + * src/autofit/afloader.c (af_loader_load_g) [!AF_USER_WARPER]: + Isolate code for adjusting metrics. + + * src/autofit/aftypes.h (AF_USE_WARPER): New macro (commented out by + default). + + * src/autofit/afwarp.c, src/autofit/afwarp.h: New files. + + * src/autofit/autofit.c [AF_USE_WARPER]: Include afwarp.c. + + * src/autofit/Jamfile (_sources): Add afwarp. + +2006-01-19 David Turner + + * src/sfnt/ttsbit0.c (tt_face_load_strike_metrics): Fix small bug + that prevented compilation when FT_OPTIMIZE_MEMORY is defined. + +2006-01-19 Brian Weed + + * builds/win32/visualc/freetype.dsp: Updated. + +2006-01-17 Werner Lemberg + + Use pscmap service in CFF module. + + * src/cff/cffcmap.c (cff_cmap_uni_pair_compare): Removed. + (cff_sid_to_glyph_name): New function. + (cff_cmap_unicode_init, cff_cmap_unicode_done, + cff_cmap_unicode_char_index, cff_cmap_unicode_char next): Use pscmap + service. + (cff_cmap_unicode_class_rec): Updated. + * src/cff/cffcmap.h (CFF_CMapUnicode, CFF_CMap_UniPair): Removed. + + + * src/psnames/psmodule.c (ps_unicodes_char_next): Fix `unicode' + return value. + + + * src/psaux/afmparse.c (afm_parser_read_vals): Use double casting + to avoid compiler warnings regarding type-punning. + +2006-01-16 Chia-I Wu + + * src/psaux/afmparse.c, src/psaux/afmparse.h: New files which + implement an AFM parser. + + * src/psaux/psconv.c, src/psaux/psconv.h: New files to provide + conversion functions (e.g., PS real number => FT_Fixed) for the + PS_Parser and AFM_Parser. Some of the functions are taken, with + some modifications, from the file psobjs.c. + + * src/psaux/psobjs.c: Use functions from psconv.c. + + * include/freetype/internal/psaux.h, src/psaux/psauxmod.c: Add + `AFM_Parser' to the `psaux' service. + + * src/psaux/psaux.c, src/psaux/rules.mk (PSAUX_DRV_SRC): Include + those new files. + + * src/tools/test_afm.c: A test program for AFM parser. + + * include/freetype/internal/services/svkern.h: New file providing a + `Kerning' service. It is currently only used to get the track + kerning information. + + * include/freetype/internal/ftserv.h (FT_SERVICE_KERNING_H): New + macro. + + * src/type1/t1driver.c, src/type1/t1objs.c, src/type1/t1afm.c, + src/type1/t1afm.h: Update to use the AFM parser. + Provide the `Kerning' service. + + * include/freetype/freetype.h, src/base/ftobjs.c: New API + `FT_Get_Track_Kerning'. + +2006-01-15 Chia-I Wu + + * include/freetype/internal/ftobjs.h, src/base/ftobjs.c, + src/bdf/bdfdrivr.c, src/cff/cffgload.c, src/cid/cidgload.c, + src/pcf/pcfdrivr.c, src/type1/t1gload.c, src/winfonts/winfnt.c: + s/ft_fake_vertical_metrics/ft_synthesize_vertical_metrics/. + + * docs/CHANGES: Mention that vertical metrics are synthesized for + fonts not having this info. + +2006-01-15 Chia-I Wu + + * include/freetype/internal/ftobjs.h (ft_fake_vertical_metrics), + src/base/ftobjs.c (ft_fake_vertical_metrics): New function to fake + vertical metrics. + + * src/cff/cffgload.c, src/cid/cidgload.c, src/pcf/pcfdrivr.c, + src/type1/t1gload.c, src/winfonts/winfnt.c: Fake vertical metrics, + which are monotone. + + * src/truetype/ttgload.c (compute_glyph_metrics): Some fixes and + formattings in vertical metrics faking. There is still room for + improvements (and so does the CFF module). + +2006-01-15 Chia-I Wu + + * src/bdf/bdfdrivr.c (BDF_Glyph_Load), src/pcf/pcfdrivr.c + (PCF_Glyph_Load), src/winfonts/winfnt.c (FNT_Load_Glyph): Don't set + the linear advance fields as they are only used by the outline + glyphs. + + * include/freetype/freetype.h: Documentation updates and + clarifications. + The meaning of FT_LOAD_FORCE_AUTOHINT is changed so that no real + change need be made to the code. + + * src/base/ftobjs.c (FT_Load_Glyph): Resolve flag dependencies and + decide whether to use the auto-hinter according to documentation. + There should to be no real difference. + Some checks (e.g., is text height positive?) after the glyph is + loaded. + (FT_Select_Size, FT_Request_Size): Scales are set to wrong values. + Be careful that scales won't be negative. + +2006-01-14 Chia-I Wu + + * docs/CHANGES: Mention the size selection change. + + * src/bdf/bdfdrivr.c (BDF_Size_Request, BDF_Size_Select), + src/pcf/pcfdrivr.c (PCF_Size_Request, PCF_Size_Select), + src/winfonts/winfnt.c (FNT_Size_Request, FNT_Size_Select): Do size + matching for requests of type NOMINAL and REAL_DIM. + + * src/winfonts/winfnt.c (FNT_Face_Init): Print trace message when + `pixel_height' is used for nominal height. + + * src/base/ftobjs.c (FT_Request_Size): Call `FT_Match_Size' if the + face is bitmap only and driver doesn't provide `request_size'. This + is added merely for completion as no driver satisfies the conditions. + +2006-01-13 Chia-I Wu + + Introduce new size selection interface. + + * include/freetype/internal/ftdriver.h (struct FT_Driver_ClassRec): + Replace `set_char_sizes' and `set_pixel_sizes' by `request_size' and + `select_size'. + + * include/freetype/freetype.h (FT_Select_Size, FT_Size_Request_Type, + FT_Size_Request, FT_Request_Size, FT_Select_Size), src/base/ftobjs.c + (FT_Select_Size, FT_Request_Size): API additions to export the new + size selection interface. + + * src/base/ftobjs.c (FT_Set_Char_Size, FT_Set_Pixel_Sizes): Use + `FT_Request_Size'. + + * include/freetype/internal/ftobjs.h (FT_Match_Size), + src/base/ftobjs.c (FT_Match_Size): New function to match a size + request against `available_sizes'. Drivers supporting bitmap strikes + can use this function to implement `request_size'. + + * src/bdf/bdfdrivr.c, src/cid/cidobjs.c, src/cid/cidobjs.h, + src/cid/cidriver.c, src/pcf/pcfdrivr.c, src/type1/t1driver.c, + src/type1/t1objs.c, src/type1/t1objs.h, src/type42/t42drivr.c, + src/type42/t42objs.c, src/type42/t42objs.h, src/winfonts/winfnt.c: + Update to new size selection interface. + + * src/cff/cffdrivr.c, src/cff/cffgload.c, src/cff/cffobjs.c, + src/cff/cffobjs.h, src/truetype/ttdriver.c, src/truetype/ttgload.c, + src/truetype/ttobjs.c, src/truetype/ttobjs.h: Update to new size + selection interface. + Make `strike_index' FT_ULong and always defined. + Use `load_strike_metrics' provided by SFNT interface. + +2006-01-13 Chia-I Wu + + * include/freetype/internal/sfnt.h (SFNT_Interface): New method + `load_strike_metrics' used to load the strike's metrics. + + * src/sfnt/sfdriver.c, src/sfnt/ttsbit.c, src/sfnt/ttsbit.h, + src/sfnt/ttsbit0.c: New function `tt_face_load_strike_metrics'. + + * src/pfr/pfrobjs.c (pfr_face_init): Set FT_Bitmap_Size correctly. + + * src/winfonts/winfnt.c (FNT_Face_Init): Use `nominal_point_size' for + nominal size unless it is obviously incorrect. + + * include/freetype/freetype.h (FT_Bitmap_Size): Update the comments on + FNT driver. + +2006-01-12 Werner Lemberg + + Prepare use of pscmap service within CFF module. + + * include/freetype/internal/services/svpscmap.h: Include + FT_INTERNAL_OBJECTS_H. + (PS_Unicode_Index_Func): Removed. Unused. + (PS_Macintosh_Name_Func): Renamed to... + (PS_Macintosh_NameFunc): This. + Update all callers. + (PS_Adobe_Std_Strings_Func): Renamed to... + (PS_Adobe_Std_StringsFunc): This. + Update all callers. + (PS_UnicodesRec): This is the former `PS_Unicodes' structure. + Add `cmap' member. + Update all callers. + (PS_Unicodes): This is now a typedef'd pointer to PS_UnicodesRec. + Update all callers. + (PS_Glyph_NameFunc): New typedef. + (PS_Unicodes_InitFunc): Change arguments to expect a function + and generic data pointer which returns a glyph name from a given + index. + + * src/psnames/psmodule.c (ps_unicodes_init, ps_unicodes_char_index, + ps_unicodes_char_next, pscmaps_interface): Updated. + + * include/freetype/internal/t1types.h (T1_FaceRec): Updated. + + * src/psaux/t1cmap.h (T1_CmapStdRec): Updated. + (T1_CmapUnicode, T1_CmapUnicodeRec): Removed. + + * src/psaux/t1cmap.c (t1_get_glyph_name): New callback function. + (t1_cmap_unicode_init, t1_cmap_unicode_done, + t1_cmap_unicode_char_index, t1_cmap_unicode_char_next, + t1_cmap_unicode_class_rec): Updated. + + * src/type42/t42types.h (T42_FaceRec): Updated. + +2006-01-11 suzuki toshiya + + * include/freetype/ftmac.h: Add declaration of new functions + FT_New_Face_From_FSRef and FT_GetFile_From_Mac_ATS_Name that + were introduced by the jumbo patch on 2006-01-11. + +2006-01-11 Werner Lemberg + + Fix Savannah bug #15056 and use pscmap service in psaux module. + + * include/freetype/internal/services/svpscmap.h (PS_UniMap): Use + FT_UInt32 for `glyph_index'. + (PS_Unicodes_InitFunc): Use FT_String for `glyph_names'. + (PS_Unicodes_CharIndexFunc): Use FT_UInt32 for `unicode'. + (PS_Unicodes_CharNextFunc): Make second argument a pointer to + FT_UInt32. + + * src/psnames/psmodule.c (VARIANT_BIT, BASE_GLYPH): New macros. + (ps_unicode_value): Set VARIANT_BIT in return value if glyph is a + variant glyph (this is, it has non-leading `.' in its name). + (compare_uni_maps): Sort base glyphs before variant glyphs. + (ps_unicodes_init): Use FT_String for `glyph_names' argument. + Reallocate only if number of used entries is much smaller. + Updated to handle variant glyphs. + (ps_unicodes_char_index, ps_unicodes_char_next): Prefer base glyphs + over variant glyphs. + Simplify code. + + * src/psaux/t1cmap.c (t1_cmap_uni_pair_compare): Removed. + (t1_cmap_unicode_init, t1_cmap_unicode_char_index, + t1_cmap_unicode_char_next): Use pscmap service. + (t1_cmap_unicode_done): Updated. + + * src/psaux/t1cmap.h (T1_CMapUniPair): Removed. + (T1_CMapUnicode): Use PS_Unicodes structure. + +2006-01-11 suzuki toshiya + + Jumbo patch to fix `deprecated' warning of cross-build for Tiger on + Intel, as reported by Sean McBride on + 2005-08-24. + + * src/base/ftmac.c: Heavy change to build without deprecated Carbon + functions on Tiger. + + * builds/unix/configure.ac: Add options and autochecks for Carbon + functions availabilities, for MacOS X. + + * builds/mac/ascii2mpw.py: Add converter for character `\305'. + * builds/mac/FreeType.m68k_{far|cfm}.make.txt: Add conditional + macros to avoid unavailable functions. + ftmac.c must be compiled without `-strict ansi', because it disables + cpp macro to use ToolBox system call. + + * builds/mac/FreeType.ppc_{classic|carbon}.make.txt: Add conditional + macros to avoid unavailable functions. + + * builds/mac/README: Detailed notes on function availabilities. + + * docs/CHANGES: Notes about (possible) incompatibilities. + +2006-01-08 Werner Lemberg + + * docs/CHANGES: Updated. + +2006-01-08 Huw D M Davies + + * include/freetype/ftmodapi.h (FT_Module_Get_Flags): New + declaration. + + * src/base/ftobjs.c (FT_Module_Get_Flags): New function. + +2006-01-07 Werner Lemberg + + * src/pcf/pcfread.c (pcf_get_bitmaps): Remove unused variable + `bitmaps'. Reported by Yu Lei . + + * src/base/ftutil.c (ft_highpow2): s/FT_BASE/FT_BASE_DEF/. + Reported by Niels Boldt . + +2005-12-28 suzuki toshiya + + * src/sfnt/sfnt/ttbdf.c: Add newline '\n' to the end of file, for + MPW compiler. + +2005-12-23 David Turner + + * Jamfile (RefDoc), docs/reference/README: Fix it so that `jam + refdoc' works correctly to generate the API reference in + `docs/reference'. + + * src/tools/docmaker/tohtml.py (print_html_field, + print_html_field_list): Update to output nicer fields lists in the + API reference. + + * src/base/ftobjs.c (FT_Load_Glyph): FT_LOAD_TARGET_LIGHT now + forces auto-hinting. + + * freetype/freetype.h: Updating the documentation for + FT_LOAD_TARGET_XXX and FT_Render_Mode values. + +2005-12-23 suzuki toshiya + + * src/base/ftmac.c (FT_New_Face_From_Suitcase): Count scalable faces + in supported formats (sfnt, LWFN) only, and ignore bitmap faces in + unsupported formats (fbit, NFNT). The number of available faces are + passed via face->num_faces. If bitmap faces are embedded in sfnt + resource, face->num_fixed_size is correctly set. In public API, + FT_New_Face() and FT_New_Face_From_FSSpec() count the faces as + FT_GetFile_From_Mac_Name(), which ignores NFNT resources. + + * doc/CHANGES: Mention the changes. + +2005-12-17 Chia-I Wu + + * src/truetype/ttinterp.c (Update_Max): Set current size of buffer + correctly (so that memory debug system won't panic). + +2005-12-16 Chia-I Wu + + * include/freetype/internal/ftobjs.h (ft_glyphslot_grid_fit_metrics), + src/base/ftobjs.c (ft_glyphslot_grid_fit_metrics): Removed. + + * src/base/ftobjs.c (ft_recompute_scaled_metrics): Do not round. + + * src/cff/cffgload.c (cff_slot_load), src/cid/cidgload.c + (cid_slot_load_glyph), src/truetype/ttgload.c (compute_glyph_metrics), + src/type1/t1gload.c (T1_Load_Glyph): Do not round glyph metrics. + + * doc/CHANGES: Mention the changes. + +2005-12-13 David Turner + + Change the implementation of the LIGHT hinting mode to completely + disable horizontal hinting. This is an experimental effort to + integrate David Chester's latest patch without affecting the other + hinting modes as well. + + Note that this doesn't force auto-hinting for all fonts, however. + + * src/autofit/afhints.c (af_glyph_hints_reload): Don't set + scaler_fiags here but... + (af_glyph_hints_rescale): Here. + + * src/autofit/aflatin.c (af_latin_hints_init): Disable horizontal + hinting for `light' hinting mode. + + + * Jamfile: Small fix to ensure that ftexport.sym is placed into the + same location as other generated objects (i.e., within the `objs' + directory of the current directory). + + + Add support for an embedded `BDF ' table within SFNT-based bitmap + font files. This is used to store atoms & properties from the + original BDF fonts that were used to generate the font file. + + The feature is controlled by TT_CONFIG_OPTION_BDF within + `ftoption.h' and is used to implement FT_Get_BDF_Property for these + font files. + + At the moment, this is still experimental, the BDF table format + isn't cast into stone yet. + + * include/freetype/config/ftoption.h (TT_CONFIG_OPTION_BDF): New + macro. + + * include/freetype/config/ftstdlib.h (ft_memchr): New macro. + + * include/freetype/internal/tttypes.h (TT_BDFRec, TT_BDF) + [TT_CONFIG_OPTION_BDF]: New structure. + (TT_FaceRec) [TT_CONFIG_OPTION_BDF]: New member `bdf'. + + * include/freetype/ttags.h (TTAG_BDF): New macro. + + * src/sfnt/Jamfile (_sources): Add ttbdf. + + * src/sfnt/rules.mk (SFNT_DRV_SRC): Add ttbdf.c. + + * src/sfnt/sfdriver.c [TT_CONFIG_OPTION_BDF]: Include ttbdf.h and + FT_SERVICE_BDF_H. + (sfnt_get_charset_it) [TT_CONFIG_OPTION_BDF]: New function. + (sfnt_service_bdf) [TT_CONFIG_OPTION_BDF]: New service. + (sfnt_services) [TT_CONFIG_OPTION_BDF]: Add sfnt_service_bdf. + + * src/sfnt/sfnt.c [TT_CONFIG_OPTION_BDF]: Include ttbdf.c. + + * src/sfnt/sfobjs.c [TT_CONFIG_OPTION_BDF]: Include ttbdf.h. + (sfnt_done_face) [TT_CONFIG_OPTION_BDF]: Call + tt_face_free_bdf_props. + + * src/sfnt/ttbdf.h, src/sfnt/ttbdf.c: New files. + +2005-12-07 Werner Lemberg + + * src/sfnt/sfobjc.c (sfnt_init_face): Move tag check to... + * src/sfnt/ttload.c (sfnt_init): Here, before handling TTCs. + +2005-12-06 Chia-I Wu + + * src/truetype/ttobjs.c (tt_size_init): size->ttmetrics.valid is + initialized twice. + size->strike_index is not initialized. + +2005-12-02 Taek Kwan(TK) Lee + + * src/type42/t42objs.c (T42_Face_Init): Replace call to + FT_New_Memory_Face with call to FT_Open_Face to pass `params'. + +2005-11-30 Werner Lemberg + + * docs/CHANGES: Document ftdump's `-v' option. + Document latest charmap code changes. + + * src/sfnt/ttcmap.c, src/sfnt/ttcmap.h: + s/TT_CMAP_FLAG_OVERLAPPED/TT_CMAP_FLAG_OVERLAPPING/. + +2005-11-30 Chia-I Wu + + * src/sfnt/ttcmap.c (tt_cmap4_char_map_binary, + tt_cmap12_char_map_binary): Fix compiler warnings. + +2005-11-29 Chia-I Wu + + Major update to distinguish between unsorted and overlapping + segments for cmap format 4. For overlapping but sorted segments, + which is previously considered unsorted, we still use binary search. + + * src/sfnt/ttcmap.h (TT_CMapRec_): Replace `unsorted' by `flags'. + (TT_CMAP_FLAG_UNSORTED, TT_CMAP_FLAG_OVERLAPPED): New macros. + + * src/sfnt/ttcmap.c (OPT_CMAP4): Removed as it is always defined. + (TT_CMap4Rec_): Remove `old_charcode' and `table_length'. + (tt_cmap4_reset): Removed. + (tt_cmap4_init): Updated accordingly. + (tt_cmap4_next): Updated accordingly. + Take care of overlapping segments. + (tt_cmap4_validate): Make sure the subtable is large enough. + Do not check glyph_ids because some fonts set the length wrongly. + Also, if all segments have offset 0, glyph_ids is always invalid. + It does not cause any problem so far only because the check misses + equality. + Distinguish between unsorted and overlapping segments. + (tt_cmap4_char_map_linear, tt_cmap4_char_map_binary): New functions + to do `charcode => glyph index' by linear/binary search. + (tt_cmap4_char_index, tt_cmap4_char_next): Use + tt_cmap4_char_map_linear and tt_cmap4_char_map_binary. + (tt_face_build_cmaps): Treat the return value of validator as flags + for cmap. + +2005-11-29 Chia-I Wu + + * src/sfnt/ttcmap.c (TT_CMap12Rec_, tt_cmap12_init, tt_cmap12_next): + New structures and functions for fast `next char'. + (tt_cmap12_char_map_binary): New function to do `charcode => glyph + index' by binary search. + (tt_cmap12_char_index, tt_cmap12_char_next): Use + tt_cmap12_char_map_binary. + (tt_face_build_cmaps): Check table and offset correctly (equality is + missing). + +2005-11-15 Detlef Würkner + + * builds/amiga/smakefile: Adjusted the compiler options + to the current sources, now really builds the gxvalid, gzip + and psnames modules. + + * builds/amiga/src/base/ftsystem.c: The assumed Seek() position + in the file cache was off by one byte which could cause false + errors in font files. + +2005-11-24 suzuki toshiya + + * builds/mac/FreeType.m68k_far.make.txt, + builds/mac/FreeType.m68k_cfm.make.txt, + builds/mac/FreeType.ppc_classic.make.txt, + builds/mac/FreeType.ppc_carbon.make.txt: + Updated for MPW to build all available modules. + +2005-11-21 HÃ¥vard Wall + + * src/bdf/bdfdrivr.c (bdf_interpret_style, BDF_Face_Done): Fix small + memory leak. + +2005-11-21 Werner Lemberg + + * src/sfnt/ttload.c (sfnt_init): Add tracing message. + +2005-11-21 Chia-I Wu + + * src/sfnt/ttsbit0.c (tt_sbit_decoder_load_image): Image_offset was + added twice to image_start if image_format was 2 or 5. + +2005-11-21 Chia-I Wu + + * src/sfnt/sfobjs.c (sfnt_init_face): Check that format_tag is known + before loading the table directory. + + * src/sfnt/ttload.c (tt_face_load_sfnt_header, + tt_face_load_directory): Delay sfnt_dir_check from + tt_face_load_sfnt_header to tt_face_load_directory. + +2005-11-20 Chia-I Wu + + * src/sfnt/ttload.c (sfnt_dir_check): Clean up and return correct + error code. + (sfnt_init): New function to fill in face->ttc_header. A non-TTC font + is synthesized into a TTC font with one offset table. + (tt_face_load_sfnt_header): Use sfnt_init. + Fix an invalid access if the font is TTC and face_index is -1. + +2005-11-18 Werner Lemberg + + * src/sfnt/ttload.c (tt_face_load_metrics): Ignore excess number + of metrics instead of aborting. Patch suggested by Derek Noonburg. + + * src/cff/cffgload.c (cff_slot_load), src/cid/cidgload.c + (cid_slot_load_glyph), src/type1/t1gload.c (T1_Load_Glyph): Scale + the glyph properly if no hinter is available. + + * docs/CHANGES: Mention scaling bug. + +2005-11-18 susuzki toshiya + + * include/freetype/ftgxval.h, src/base/ftgxval.c + (FT_TrueTypeGX_Free, FT_ClassicKern_Free): New functions to free + buffers allocated by gxvalid module. + * include/freetype/ftotval.h, src/base/ftotval.c + (FT_OpenType_Free): New function to free buffer allocated by + otvalid module. + +2005-11-18 Chia-I Wu + + * builds/unix/ftsystem.c (FT_Stream_Open, FT_New_Memory, + FT_Done_Memory), builds/vms/ftsystem.c (FT_Stream_Open, FT_New_Memory, + FT_Done_Memory), builds/win32/ftdebug.c (FT_Message, FT_Panic): + s/FT_EXPORT/FT_BASE/. + +2005-11-17 Detlef Würkner + + * builds/amiga/src/base/ftdebug.c (FT_Trace_Get_Count, + FT_Trace_Get_Name, FT_Message, FT_Panic), + builds/amiga/src/base/ftsystem.c (FT_New_Memory, FT_Done_Memory, + FT_Stream_Open): s/FT_EXPORT/FT_BASE/. + +2005-11-17 Detlef Würkner + + * builds/amiga/makefile, builds/amiga/makefile.os4, + builds/amiga/smakefile, + builds/amiga/include/freetype/config/ftmodule.h: Updated the Amiga + build files (added support for the gxvalid module). + +2005-11-17 Werner Lemberg + + Add vertical metrics support to OpenType CFF outlines. Based on a + patch from Mike Moening . + + * src/cff/cffgload.c (cff_face_get_vertical_metrics): New function. + (cff_slot_load): Use cff_face_get_vertical_metrics. + + * docs/CHANGES: Updated. + +2005-11-17 Chia-I Wu + + * src/base/ftcalc.c (FT_MulTo64): Commented out. + + * include/freetype/internal/ftcalc.h (FT_SqrtFixed), + src/base/ftcalc.c (FT_SqrtFixed), + include/freetype/internal/ftdebug.h (FT_Trace_Get_Count, + FT_Trace_Get_Name, FT_Message, FT_Panic), src/base/ftdebug.c + (FT_Trace_Get_Count, FT_Trace_Get_Name, FT_Message, FT_Panic), + include/freetype/internal/ftobjs.h (FT_New_Memory, FT_Done_Memory), + include/freetype/internal/ftstream.h (FT_Stream_Open), + src/base/ftsystem.c (FT_New_Memory, FT_Done_Memory, FT_Stream_Open): + s/FT_EXPORT/FT_BASE/. + + * builds/exports.mk: Manually add TT_New_Context to EXPORTS_LIST + too. + +2005-11-15 David Turner + + * src/base/fttrigon.c (ft_trig_prenorm): Fix a bug that created + invalid computations, resulting in very weird bugs in TrueType + bytecode hinted fonts. + + * src/truetype/ttinterp.c (FT_UNUSED_EXEC): Don't perform a + structure copy each time. + +2005-11-11 Werner Lemberg + + * src/cache/ftccache.c (FTC_Cache_Clear), src/cache/ftcmanag.c + (FTC_Manager_Check): Remove FT_EXPORT_DEF tag. + + * src/base/ftcalc.c (FT_Add64): Remove FT_EXPORT_DEF tag. + (FT_Div64by32, FT_Sqrt32): Commented out. Unused. + + * include/freetype/internal/ftcalc.h (SQRT_32): Removed. Unused. + (FT_Sqrt32): Commented out. Unused. + + * include/freetype/cache/ftccache.h: + s/ftc_node_destroy/FTC_Node_Destroy/. + + * src/cache/ftccback.h (ftc_node_destroy): New declaration. + + * src/cache/ftccache.c (ftc_node_destroy): Use FT_LOCAL_DEF tag. + (FTC_Node_Destroy): New exported wrapper function for + ftc_node_destroy. + + * src/cache/ftcmanag.c: Include ftccback.c. + +2005-11-10 Werner Lemberg + + * src/autofit/afangles.c, src/autofit/aftypes.h (af_angle_diff): + Comment out. Unused. + + * builds/exports.mk ($(EXPORTS_LIST)): Add TT_RunIns. + +2005-11-10 Christian Biesinger + + * builds/beos/beos.mk: Call beos-def.mk before anything else to + define the separator. + + * builds/unix/unix-cc.in (LINK_LIBRARY): Add `-no-undefined' flag. + +2005-11-07 Werner Lemberg + + * src/type1/t1afm.c (T1_Read_PFM): Zero offset means `no kerning + table available'. From Sergey Tolstov . + +2005-11-03 Ville Syrjälä + + * src/base/ftobjs.c (FT_Open_Face): Avoid possible memory leak. + +2005-11-02 Werner Lemberg + + Make compiling instructions in docs/CUSTOMIZE work again. + + * builds/unix/unix-cc.in (CPPFLAGS): New variable. + (CFLAGS): Don't include @CPPFLAGS@. + * builds/freetype.mk (FT_CFLAGS): Add CPPFLAGS. + +2005-10-28 David Turner + + Update build system to support the generation of a list of exported + symbols or Windows .DEF files by parsing the public headers with the + `apinames' tool located in src/tools/apinames.c. + + Only tested on Unix at the moment. On Windows, the .DEF file is + generated but isn't used yet to generate a DLL. + + * builds/exports.mk: New file. + + * builds/freetype.mk: Include exports.mk. + (dll): New target. + (clean_project_dos): Fix rule. + + * builds/compiler/visualc.mk (TE), builds/dos/dos-def.mk (E), + builds/os2/os2-def.mk (E), builds/win32/win32-def.mk (E): New + variables for controlling executable extensions. + + * builds/unix/unix-cc.in (EXPORTS_LIST, CCexe), + builds/win32/w32-bcc.mk, builds/win32/w32-gcc.mk, + builds/win32/w32-icc.mk, builds/win32/w32-icc.mk, + builds/win32/w32-mingw32.mk, builds/win32/w32-vcc, + builds/win32/w32-wat.mk (EXPORTS_LIST, EXPORT_OPTIONS, + APINAMES_OPTIONS): New targets for controlling the `apinames' tool. + + * Jamfile (GenExportSymbols): Updated. + + + * src/pfr/pfrtypes.h, src/pfr/pfrload.c, src/pfr/pfrobjs.c + [!FT_OPTIMIZE_MEMORY]: Fold memory optimization code into + FT_OPTIMIZE_MEMORY chunks for better maintainability and simplicity. + + + * src/base/fttrigon.c (ft_trig_prenorm), src/base/ftcalc.c + (FT_MulFix): Performance optimizations. + + + * include/freetype/internal/ftgloadr.h (FT_GLYPHLOADER_CHECK_P, + FT_GLYPHLOADER_CHECK_C, FT_GLYPHLOADER_CHECK_POINTS): New macros for + checking points and contours. Update callers to use + FT_GLYPHLOADER_CHECK_POINTS instead of FT_GlyphLoader_CheckPoints + at profile-detected hot-spots. + + * src/base/ftgloadr.c (FT_GlyphLoader_CheckPoints): Set `adjust' + to 0 to not call `AdjustPoints' every time. + + + * src/autofit/aftypes.h (AF_ANGLE_DIFF): New macro to inline + FT_Angle_Diff. + + * src/autofit/afhints.c (af_direction_compute): Re-implement. + (af_glyph_hints_compute_inflections, af_glyph_hints_reload): Use + AF_ANGLE_DIFF to speed up the detection of inflexions. + + + * src/tools/apinames.c: Include . + (OutputFormat): New enumeration. + (names_dump): Add two parameters to control output format and DLL + name. + (names_dump_windef): Removed. Code folded into `names_dump'. + (read_header_file): Use isalnum, not isalpha. Otherwise function + names with digits aren't read correctly. + (usage): Updated. + (main): New option `-o' to control output file name. + New option `-d' to indicate DLL file name. + Extend `-w' flag to handle Borland and Watcom compilers and linkers. + +2005-10-28 suzuki toshiya + + * builds/mac/ftlib.prj, builds/mac/freetype.mak: Removed. + ftlib.prj is unmaintained and incompatible with current tree. + freetype.mak is unrecoverably broken. + + * builds/mac/ftlib.prj.xml: Added. + Generated by Metrowerks CodeWarrior 9.0. + + * builds/mac/FreeType.m68k_far.make.txt, + builds/mac/FreeType.m68k_cfm.make.txt, + builds/mac/FreeType.ppc_classic.make.txt, + builds/mac/FreeType.ppc_carbon.make.txt: Added. + Skeleton files of MPW makefiles. + + * builds/mac/ascii2mpw.py: Added. + Python script to make MPW makefile from skeleton. + + * builds/mac/README: Updated. + Almost rewritten to use new files. + +2005-10-28 suzuki toshiya + + * src/base/ftmac.c: Fix invalid casts from NULL to integer typed + variables. Advised by David Turner, Masatake YAMATO, Sean McBride, + and George Williams. + +2005-10-27 Werner Lemberg + + * include/freetype/ftsysmem.h, include/freetype/ftsysio.h: Removed. + Obsolete. + +2005-10-25 Werner Lemberg + + * src/sfnt/sfdriver.c (sfnt_interface): Move out + `tt_face_get_kerning' from a #ifdef clause. Reported by Tony J. + Ibbs . + +2005-10-23 Werner Lemberg + + * src/base/ftdbgmem.c (ft_mem_debug_realloc): Make it compile with + C++. + +2005-10-21 David Turner + + * src/base/ftdbgmem.c (ft_mem_table_set, ft_mem_debug_realloc): + Another realloc memory counting bug fix. + + * src/tools/Jamfile: Add missing file. + + * src/lzw/Jamfile: Fix incorrect source file reference. + +2005-10-20 David Turner + + * src/base/ftdbgmem.c (ft_mem_table_set, ft_mem_table_remove, + ft_mem_debug_alloc, ft_mem_debug_free, ft_mem_debug_realloc): Fixes + to better account for memory reallocations. + + * src/lzw/ftlzw2.c, src/lzw/ftzopen.h, src/lzw/ftzopen.c, + src/lzw/rules.mk: First version of LZW loader re-implementation. + Apparently, this saves about 330 KB of heap memory when loading + timR24.pcf.Z. + +2005-10-20 Chia-I Wu + + * include/freetype/ftbitmap.h (FT_Bitmap_Copy, FT_Bitmap_Embolden), + src/base/ftbdf.c (FT_Get_BDF_Property), src/cache/ftcmru.c + (FTC_MruList_Reset, FTC_MruList_Done, FTC_MruList_Lookup): Fix + FT_EXPORT/FT_EXPORT_DEF tagging. + +2005-10-19 Chia-I Wu + + * src/truetype/ttgload.c (TT_Load_Glyph): Allow size->ttmetrics to + be invalid when FT_LOAD_NO_SCALE is set. + +2005-10-17 David Turner + + * src/base/ftobjs.c (FT_Open_Face): Don't call FT_New_GlyphSlot and + FT_New_Size if we are opening a face with face_index < 0 (which is + only used for testing the format). + + * src/gxvalid/gxvmort0.c (gxv_mort_subtable_type0_entry_validate): + Remove compiler warning. + +2005-10-16 David Turner + + * src/tools/apinames.c: Add new tool to extract public API function + names from header files. + +2005-10-05 Werner Lemberg + + Add FT_FACE_FLAG_HINTER to indicate that a specific font driver has + a hinting engine of its own. + + * include/freetype/freetype.h (FT_FACE_FLAG_HINTER): New macro. + + * src/cff/cffobjs.c (cff_face_init), src/cid/cidobjs.c + (cid_face_init), src/truetype/ttobjs.c (tt_face_init) + [TT_CONFIG_OPTION_BYTECODE_INTERPRETER], src/type1/t1objs.c + (T1_Face_Init), src/type42/t42objs.c (T42_Face_Init) + [TT_CONFIG_OPTION_BYTECODE_INTERPRETER]: Update face flags. + + * docs/CHANGES: Document it. + +2005-09-27 Werner Lemberg + + * builds/unix/freetype2.m4: Add license exception so that the file + can be used in any other autoconf script. + +2005-09-26 David Turner + + * src/autofit/aflatin.c (af_latin_compute_stem_width): Fix bad + computation of the `vertical' flag, causing ugly things in LCD mode + and others. + +2005-09-23 David Turner + + * src/autofit/aflatin.c (af_latin_hints_init): Fix a bug that + prevented internal hint mode bitflags from being computed correctly. + + * src/base/Jamfile: Adding src/base/ftgxval.c. + + * src/gxvalid/gxvbsln.c, src/gxvalid/gxvcommn.c, + src/gxvalid/gxvfeat.c, src/gxvalid/gxvjust.c, src/gxvalid/gxvkern.c, + src/gxvalid/gxvlcar.c, src/gxvalid/gxvmort.c, + src/gxvalid/gxvmort0.c, src/gxvalid/gxvmort1.c, + src/gxvalid/gxvmort2.c, src/gxvalid/gxvmort4.c, + src/gxvalid/gxvmort5.c, src/gxvalid/gxvmorx.c, + src/gxvalid/gxvmorx0.c, src/gxvalid/gxvmorx1.c, + src/gxvalid/gxvmorx2.c, src/gxvalid/gxvmorx5.c, + src/gxvalid/gxvopbd.c, src/gxvalid/gxvprop.c, + src/truetype/ttgload.c: Remove _many_ compiler warnings when + compiling with Visual C++ at maximum level (/W4). + + * src/autofit/afangles.c (af_angle_atan): Replaced CORDIC-based + implementation with one using lookup tables. This simple thing + speeds up glyph loading by 18%, according to ftbench! + + * src/sfnt/sfdriver.c (sfnt_get_interface): Don't check for + `get_sfnt' and `load_sfnt' module interfaces. + +2005-09-22 Werner Lemberg + + * docs/CHANGES: Mention SING Glyphlet support. + +2005-09-22 David Turner + + * src/base/Jamfile: Disable compilation of ftgxval module + temporarily. + +2005-09-19 David Somers + + * src/sfnt/ttload.c (sfnt_dir_check): Modified to allow a + font to have no `head' table if tables `SING' and `META' are + present; this is to support `SING Glyphlet'. + + `SING Glyphlet' is an extension to OpenType developed by Adobe + primarily to facilitate adding supplemental glyphs to an OpenType + font (with emphasis on, but not necessarily limited to, gaiji to a + CJK font). A SING Glyphlet Font is an OpenType font that contains + the outline(s), either in a `glyf' or `CFF' table, for a glyph; + `cmap', `BASE', and `GSUB' tables are present with the same format + and functionaliy as a regular OpenType font; there are no `name', + `head', `OS/2', and `post' tables; there are two new tables, `SING' + which contains details about the glyphlet, and `META' which contains + metadata. + + Further information on the SING Glyphlet format can be found at: + + http://www.adobe.com/products/indesign/sing_gaiji.html + + * include/freetype/ttags.h (TTAG_SING, TTAG_META): New macros for + the OpenType tables `SING' and `META'. These two tables are used in + SING Glyphlet Format fonts. + +2005-09-09 Werner Lemberg + + * src/sfnt/sfobjs.c (sfnt_load_face): Reactivate code to set + FT_FACE_FLAG_KERNING which has been commented out erroneously. + + * docs/CHANGES: Document it. + +2005-09-05 Werner Lemberg + + Fixes for `make multi' and using C++ compiler. + + * src/gxvalid/gxvcommn.c (gxv_set_length_by_ushort_offset, + gxv_set_length_by_ulong_offset, gxv_array_getlimits_byte, + gxv_array_getlimits_ushort): Declare with FT_LOCAL_DEF. + (gxv_compare_ranges): Make it static. + (gxv_LookupTable_fmt0_validate, gxv_LookupTable_fmt2_validate, + gxv_LookupTable_fmt4_validate, gxv_LookupTable_fmt6_validate, + gxv_LookupTable_fmt8_validate, gxv_LookupTable_validate): Improve + trace messages. + (gxv_StateArray_validate, gxv_XStateArray_validate): s/class/clazz/. + (GXV_STATETABLE_HEADER_SIZE, GXV_STATEHEADER_SIZE, + GXV_XSTATETABLE_HEADER_SIZE, GXV_XSTATEHEADER_SIZE): Move to + gxvcommn.h. + + * src/gxvalid/gxvcommn.h: Add prototypes for + gxv_StateTable_subtable_setup, gxv_XStateTable_subtable_setup, + gxv_XStateTable_validate, gxv_array_getlimits_byte, + gxv_array_getlimits_ushort, gxv_set_length_by_ushort_offset, + gxv_set_length_by_ulong_offset, gxv_odtect_add_range, + gxv_odtect_validate. + (GXV_STATETABLE_HEADER_SIZE, GXV_STATEHEADER_SIZE, + GXV_XSTATETABLE_HEADER_SIZE, GXV_XSTATEHEADER_SIZE): Moved from + gxvcommn.c. + + * src/gxvalid/gxvbsln.c (gxv_bsln_LookupValue_validate, + gxv_bsln_parts_fmt1_validate): Improve trace messages. + + * src/gxvalid/gxvfeat.c: Split off predefined registry stuff to... + * src/gxvalid/gxvfeat.h: New file. + + * src/gxvalid/gxvjust.c (gxv_just_wdc_entry_validate): Improve trace + message. + + * src/gxvalid/gxvkern.c (GXV_kern_Dialect): Add KERN_DIALECT_UNKNOWN. + (gxv_kern_subtable_fmt1_valueTable_load, + gxv_kern_subtable_fmt1_subtable_setup, + gxv_kern_subtable_fmt1_entry_validate): Fix C++ compiler errors. + (gxv_kern_coverage_validate): Use KERN_DIALECT_UNKWOWN. + Improve trace message. + (gxv_kern_validate_generic): Fix C++ compiler error. + Improve trace message. + (gxv_kern_validate_classic): Fix C++ compiler error. + + * src/gxvalid/gxvmort0.c (gxv_mort_subtable_type0_validate): Declare + with FT_LOCAL_DEF. + + * src/gxvalid/gxvmort1.c + (gxv_mort_subtable_type1_substitutionTable_load, + gxv_mort_subtable_type1_subtable_setup): Fix C++ compiler errors. + (gxv_mort_subtable_type1_substTable_validate): Improve trace + message. + (gxv_mort_subtable_type1_validate): Declare with FT_LOCAL_DEF. + + * src/gxvalid/gxvmort2.c (gxv_mort_subtable_type2_opttable_load, + gxv_mort_subtable_type2_subtable_setup, + gxv_mort_subtable_type2_ligActionOffset_validate, + gxv_mort_subtable_type2_ligatureTable_validate): Fix C++ compiler + errors. + (gxv_mort_subtable_type2_validate): Declare with FT_LOCAL_DEF. + + * src/gxvalid/gxvmort4.c (gxv_mort_subtable_type4_validate): Declare + with FT_LOCAL_DEF. + + * src/gxvalid/gxvmort5.c (gxv_mort_subtable_type5_subtable_setup, + gxv_mort_subtable_type5_InsertList_validate): Fix C++ compiler + errors. + (gxv_mort_subtable_type5_validate): Declare with FT_LOCAL_DEF. + + * src/gxvalid/gxvmort.c: Include gxvfeat.h. + (gxv_mort_featurearray_validate, gxv_mort_coverage_validate): + Declare with FT_LOCAL_DEF. + (gxv_mort_subtables_validate, gxv_mort_validate): Improve trace + messages. + + * src/gxvalid/gxvmort.h (gxv_mort_feature_validate): Remove. + + * src/gxvalid/gxvmorx0.c (gxv_morx_subtable_type0_validate): Declare + with FT_LOCAL_DEF. + + * src/gxvalid/gxvmorx1.c + (gxv_morx_subtable_type1_substitutionTable_load, + gxv_morx_subtable_type1_subtable_setup, + gxv_morx_subtable_type1_entry_validate, + gxv_morx_subtable_type1_substitutionTable_validate): Fix C++ + compiler errors. + (gxv_morx_subtable_type1_validate): Declare with FT_LOCAL_DEF. + + * src/gxvalid/gxvmorx2.c (gxv_morx_subtable_type2_opttable_load, + gxv_morx_subtable_type2_subtable_setup, + gxv_morx_subtable_type2_ligActionIndex_validate, + gxv_morx_subtable_type2_ligatureTable_validate): Fix C++ compiler + errors. + (gxv_morx_subtable_type2_validate): Declare with FT_LOCAL_DEF. + Fix typo. + + * src/gxvalid/gxvmorx4.c (gxv_morx_subtable_type4_validate): Declare + with FT_LOCAL_DEF. + + * src/gxvalid/gxvmorx5.c (gxv_morx_subtable_type5_insertionGlyph_load, + gxv_morx_subtable_type5_subtable_setup): Fix C++ compiler error. + (gxv_morx_subtable_type5_validate): Declare with FT_LOCAL_DEF. + + * src/gxvalid/gxvmorx.c (gxv_morx_subtables_validate, + gxv_morx_validate): Improve trace message. + + * src/gxvalid/gxvopbd.c (gxv_opbd_LookupFmt4_transit): Fix compiler + warnings. + (gxv_opbd_validate): Improve trace message. + + * src/gxvalid/gxvprop.c: Decorate constants with `U' and `L' where + appropriate. + (gxv_prop_zero_advance_validate, gxv_prop_validate): Improve trace + message. + + * src/gxvalid/gxvtrak.c (gxv_trak_trackTable_validate): Remove unused + parameter. Update all callers. + (gxv_trak_validate): Improve trace message. + + * rules.mk (GXV_DRV_H): Add gxvfeat.h. + +2005-09-01 Werner Lemberg + + * src/gxvalid/gxvbsln.c (GXV_BSLN_VALUE_EMPTY): Add `U'. + + * src/gxvalid/gxmort1.c (GXV_MORT_SUBTABLE_TYPE1_HEADER_SIZE), + src/gxvalid/gxmort2.c (GXV_MORT_SUBTABLE_TYPE2_HEADER_SIZE): Fix + typo. + + * src/gxvalid/gxvmorx0.c, src/gxvalid/gxvmorx1.c, + src/gxvalid/gxvmorx2.c, src/gxvalid/gxvmorx4.c, + src/gxvalid/gxvmorx5.c, src/gxvalid/gxvmort.c: Improve trace + messages. + Decorate constants with `U' and `L' where appropriate. + Fix compiler warnings. + +2005-08-31 Werner Lemberg + + * src/truetype/ttgload.c (load_truetype_glyph): Fix typo. + + * src/gxvalid/gxvbsln.c (gxv_bsln_validate): Fix trace message. + + * src/gxvalid/gxvcommn.c (gxv_odtect_add_range): Use `const'. + + * src/gxvalid/gxvfeat.c, src/gxvalid/gxvjust.c, + src/gxvalid/gxvkern.c, src/gxvalid/gxvlcar.c, src/gxvalid/gxvmod.c, + src/gxvalid/gxvmort0.c, src/gxvalid/gxvmort1.c, + src/gxvalid/gxvmort2.c, src/gxvalid/gxvmort4.c, + src/gxvalid/gxvmort5.c, src/gxvalid/gxvmort.c: Improve trace + messages. + Decorate constants with `U' and `L' where appropriate. + Fix compiler warnings. + +2005-08-30 Werner Lemberg + + * src/gxvalid/README: Revised. + * src/gxvalid/gxvbsln.c: Fix compiler warnings. + * src/gxvalid/gxvcommn.c: Fix compiler warnings. + (gxv_XEntryTable_validate, gxv_compare_ranges): Remove unused + parameter. Update all callers. + Improve trace messages. + Some formatting. + +2005-08-29 Werner Lemberg + + * include/freetype/freetype.h, include/freetype/ftchapters.h: Add + a preliminary section with some explanations about user allocation. + + * src/tools/docmaker/tohtml.py (HtmlFormatter.section_enter): + Don't abort if there are no data types, functions, etc., in a + section. + Print synopsis only if we have a data type, function, etc. + + * docs/INSTALL.ANY, docs/INSTALL, docs/INSTALL.UNX, docs/CUSTOMIZE, + docs/INSTALL.GNU, docs/TRUETYPE, docs/DEBUG, docs/UPGRADE.UNX, + docs/VERSION.DLL, docs/formats.txt: Revised, formatted. + +2005-08-28 George Williams + + * src/truetype/ttgload.c [TT_MAX_COMPOSITE_RECURSE]: Removed. + (load_truetype_glyph): Limit recursion depth by `maxComponentDepth'. + +2005-08-25 J. Ali Harlow + + * builds/unix/freetype2.in (CFlags): Add missing directory. + +2005-08-24 Werner Lemberg + + * docs/CHANGES: Mention gxvalid module. + +2005-08-23 Werner Lemberg + + * src/autofit/aflatin.c (af_latin_metrics_scale): Initialize + render mode properly. Reported by chris@dokein.co.uk. + +2005-08-23 suzuki toshiya + + Add gxvalid module to validate TrueType GX/AAT tables. + + Modifications on existing files: + + * Jamfile: Register gxvalid module. + * src/base/Jamfile: Register ftgxval.c. + * src/base/rule.mk: Register ftgxval.c. + * docs/INSTALL.ANY: Register gxvalid/gxvalid.c. + + * include/freetype/config/ftheader.h (FT_GX_VALIDATE_H): New macro + to include gxvalid header file. + * include/freetype/config/ftmodule.h: Register gxv_module_class. + + * include/freetype/ftchapters.h: Add comment about gx_validation. + * include/freetype/ftotval.h: Change keyword FT_VALIDATE_XXX + to FT_VALIDATE_OTXXX to co-exist with gxvalid. + * include/freetype/tttags.h: Add tags for TrueType GX/AAT tables. + + * include/freetype/internal/ftserv.h (FT_SERVICE_GX_VALIDATE_H): New + macro for gxvalid service. + * include/freetype/internal/fttrace.h: Add trace facilities for + gxvalid. + + New files on existing directories: + + * include/freetype/internal/services/svgxval.h: Registration of + validation service for TrueType GX/AAT and classic kern table. + * include/freetype/ftgxval.h: Public API definition to use gxvalid. + * src/base/ftgxval.c: Public API of gxvalid. + + New files under src/gxvalid/: + + * src/gxvalid/Jamfile src/gxvalid/README src/gxvalid/module.mk + src/gxvalid/rules.mk src/gxvalid/gxvalid.c src/gxvalid/gxvalid.h + src/gxvalid/gxvbsln.c src/gxvalid/gxvcommn.c src/gxvalid/gxvcommn.h + src/gxvalid/gxverror.h src/gxvalid/gxvfeat.c src/gxvalid/gxvfgen.c + src/gxvalid/gxvjust.c src/gxvalid/gxvkern.c src/gxvalid/gxvlcar.c + src/gxvalid/gxvmod.c src/gxvalid/gxvmod.h src/gxvalid/gxvmort.c + src/gxvalid/gxvmort.h src/gxvalid/gxvmort0.c src/gxvalid/gxvmort1.c + src/gxvalid/gxvmort2.c src/gxvalid/gxvmort4.c src/gxvalid/gxvmort5.c + src/gxvalid/gxvmorx.c src/gxvalid/gxvmorx.h src/gxvalid/gxvmorx0.c + src/gxvalid/gxvmorx1.c src/gxvalid/gxvmorx2.c src/gxvalid/gxvmorx4.c + src/gxvalid/gxvmorx5.c src/gxvalid/gxvopbd.c src/gxvalid/gxvprop.c + src/gxvalid/gxvtrak.c: New files, gxvalid body. + +2005-08-21 Werner Lemberg + + * src/truetype/ttgload.c (TT_Load_Glyph): Only translate outline + to (0,0) if bit 1 of the `head' table isn't set. This improves + rendering of buggy fonts. + +2005-08-20 Chia I Wu + + * src/truetype/ttdriver.c (Load_Glyph): Don't check the validity of + ttmetrics here. TrueType fonts with only sbits always have + ttmetrics.valid set to false. + + * src/truetype/ttgload.c (TT_Load_Glyph): Check that ttmetrics is + valid before loading outline glyph. + + * src/cache/ftcimage.c (FTC_INode_New): Fix a memory leak. + +2005-08-20 Werner Lemberg + + * src/sfnt/ttload.c (tt_face_load_metrics_header): Ignore missing + `hhea' table for SFNT Mac fonts. Change based on a patch by + mpsuzuki@hiroshima-u.ac.jp. + +2005-08-20 Masatake YAMATO + + * src/otvalid/otvmod.c (otv_validate): Use ft_validator_run instead + of ft_setjmp. + +2005-08-19 Werner Lemberg + + * src/truetype/ttgload.c (load_truetype_glyph): Fix compiler + warnings. + +2005-08-16 Chia I Wu + + * src/truetype/ttinterp.c, src/truetype/ttinterp.h: Update copyright + messages. + +2005-08-16 Chia I Wu + + * src/truetype/ttinterp.c, src/truetype/ttinterp.h: Remove original + TT_Done_Context and rename TT_Destroy_Context to TT_Done_Context + with slight changes. + Update all callers. + (TT_New_Context): Now takes TT_Driver argument directly. + Update all callers. + + * src/truetype/ttobjs.h (tt_slot_init): New function. + * src/truetype/ttobjs.c (tt_driver_init): Initialize execution + context here. + (tt_slot_init): New function to create extra points for the internal + glyph loader. We then use it directly, instead of face's glyph + loader, when loading glyph. + + * src/truetype/ttdriver.c (tt_driver_class): Use tt_slot_init for + glyph slot initialization. + (Load_Glyph): Load flag dependencies are handled here. Return error + if size is NULL. + + * src/truetype/ttgload.c: Heavy cleanup and refactoring. + (org_to_cur): Removed. + (TT_Load_Simple_Glyph): Call FT_GlyphLoader_CheckPoints. + (TT_Hint_Glyph): New function to hint a zone, prepared by caller. + (TT_Process_Simple_Glyph): s/load/loader/. + Use loader->pp values instead of recalculation. + Use TT_Hint_Glyph. + No need to save/restore loader->stream before and after + TT_Vary_Get_Glyph_Deltas now. + (TT_LOADER_SET_PP): New macro to calculate and set the four phantom + points. + (load_truetype_glyph): Never set exec->glyphSize to 0. This closes + Savannah bug #13107. + Forget glyph frame before calling TT_Process_Simple_Glyph. + Use TT_LOADER_SET_PP. + Scale all four phantom points. + Split off some functionality to ... + (TT_Process_Composite_Component, TT_Process_Composite_Glyph): These + new functions. + (TT_Load_Glyph): Set various fields of `glyph' here, not in + load_truetype_glyph and compute_glyph_metrics. + Split off some functionality to ... + (load_sbit_image, tt_loader_init): These new functions. + (compute_glyph_metrics): Call FT_Outline_Get_CBox. + +2005-08-08 Werner Lemberg + + * docs/INSTALL.ANY: Updated. + +2005-08-05 Werner Lemberg + + * src/cff/cffgload.c (cff_builder_close_contour), + src/psaux/psobjs.c (t1_builder_close_contour): Protect against + zero `outline' pointer. + + * src/base/ftgloadr.c (FT_GlyphLoader_Add): Protect against zero + `loader' address. + +2005-08-03 Werner Lemberg + + * src/sfnt/sfdriver.c (sfnt_interface) [FT_OPTIMIZE_MEMORY]: + Reactivate pointers to tt_find_sbit_image and tt_load_sbit_metrics + to make X work again. + +2005-08-02 Werner Lemberg + + * src/otvalid/otvcommn.h: Remove dead code. + +2005-07-31 Chia I Wu + + * src/truetype/ttobjs.h (tt_size_run_fpgm, tt_size_run_prep): New + functions. + + * src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): New + functions. + (tt_size_init): Add 4, instead of 2, (phantom) points to twilight + zone. + Move code that runs fpgm to tt_size_run_fpgm. + (Reset_Outline_Size): Move code that runs prep to tt_size_run_prep. + (tt_glyphzone_new): Allocate right size of arrays. + Set max_points and max_contours properly. + +2005-07-26 Chia I Wu + + * src/truetype/ttdriver.c (Set_Char_Sizes): Avoid unnecessary + computations and clean up. + + * src/truetype/ttobjs.h (struct TT_SizeRec_): Comment on the + internal copy of metrics. + +2005-07-12 Werner Lemberg + + * include/freetype/ftoutln.h (FT_Outline_Embolden): Fix prototype. + Reported by Xerxes. + +2005-07-04 Werner Lemberg + + * include/freetype/internal/ftmemory.h (FT_REALLOC_ARRAY): Fix typo. + Reported by Brett Hutley. + +2005-06-30 David Turner + + * src/sfnt/ftbitmap.c, src/truetype/ttgload.c, src/sfnt/ttcmap.c: + Removing compiler warnings (Visual C++ /W4). + + + Implement a work-around for broken C preprocessor in Visual C++ (it + has been confirmed by the MS developers that it is indeed a bug + which won't be fixed in the very near future). + + * Jamfile (FT2_COMPONENTS): Include otvalid (again). + + * src/otvalid/otvcommn.h (OTV_NAME, OTV_FUNC): New macros. + (OTV_NEST1, OTV_NEST2, OTV_NEST3): Use OTV_NAME and OTV_FUNC to + avoid argument expansion by argument prescan. + Append `Func' to all affected macros and change them to take just a + single argument. Example: `AttachList' is renamed to + `AttachListFunc'. + + * src/otvalid/otvgdef.c, src/otvalid/otvgpos.c, + src/otvalid/otvgsub.c, src/otvjstf.c: Append `Func' to macros + affected by the changes to OTV_NESTx and modify them to take just a + single argument. + +2005-06-20 Chia I Wu + + * include/freetype/internal/ftobjs.h, src/base/ftobjs.c: New function + ft_glyphslot_grid_fit_metrics. + + * src/truetype/ttgload.c (compute_glyph_metrics): Use + ft_glyphslot_grid_fit_metrics. + + * src/cff/cffgload.c (cff_slot_load), src/cid/cidgload.c + (cid_slot_load_glyph), src/type1/t1gload.c (T1_Load_Glyph): Use + ft_glyphslot_grid_fit_metrics. + FT_Outline_Get_CBox is called twice. + + * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Modify metrics to more + reasonable values when emboldening outline glyphs. The theoretic + ones are unrealistic. + +2005-06-16 Chia I Wu + + * src/base/ftoutln.c (FT_Outline_Embolden): Strength should be + halved. + + * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Change the default + strength. + Don't increase slot->advance.y. + +2005-06-16 Werner Lemberg + + * include/freetype/freetype.h (FREETYPE_MINOR): Set to 2. + (FREETYPE_PATCH): Set to 0. + + * builds/unix/configure.ac (version_info): Set to 9:9:3. + Currently, we are still binary compatible. + + * builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj: s/219/2110/, s/2.1.9/2.1.10/. + + * builds/freetype.mk (refdoc), README, Jamfile (RefDoc): + s/2.1.9/2.1.10/. + + * docs/CHANGES, docs/VERSION.DLL: Updated. + + * ChangeLog: Split off older entries into... + * ChangeLog.20, ChangeLog.21: These new files. + +2005-06-15 Kirill Smelkov + + The next release will be 2.2.0, so don't worry about source code + backwards compatibility. + + * include/freetype/ftimage.h (FT_Outline_MoveToFunc, + FT_Outline_LineToFunc, FT_Outline_ConicToFunc, + FT_Outline_CubicToFunc, FT_SpanFunc, FT_Raster_RenderFunc), + include/freetype/ftrender.h (FT_Glyph_TransformFunc, + FT_Renderer_RenderFunc, FT_Renderer_TransformFunc): Decorate + parameters with `const' where appropriate. + +2005-06-15 Chia I Wu + + * src/sfnt/ttsbit.c (tt_face_load_sbit_image): Compute vertBearingY + to make glyphs centered vertically. + + * src/truetype/ttgload.c (compute_glyph_metrics): Compute + vertBearingY to make glyphs centered vertically. + Fix some bugs in vertical metrics: + + . loader->pp3.y and loader->pp4.y are in 26.6 format, not in font + units. + . As we use the glyph's cbox to calculate the top bearing now + there is no need to adjust `top'. + +2005-06-15 Werner Lemberg + + * src/otvalid/otvcommn.h (OTV_OPTIONAL_TABLE): Use FT_UShort to be + in sync with OTV_OPTIONAL_OFFSET. Reported by YAMATO Masatake. + +2005-06-13 Werner Lemberg + + * docs/release: Update. + +---------------------------------------------------------------------------- + +Copyright 2005, 2006, 2007, 2008 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, modified, +and distributed under the terms of the FreeType project license, +LICENSE.TXT. By continuing to use, modify, or distribute this file you +indicate that you have read the license and understand and accept it +fully. + + +Local Variables: +version-control: never +coding: utf-8 +End: diff --git a/ChangeLog.23 b/ChangeLog.23 new file mode 100644 index 0000000..bc46c84 --- /dev/null +++ b/ChangeLog.23 @@ -0,0 +1,7948 @@ +2010-02-13 Werner Lemberg + + * Version 2.3.12 released. + ========================== + + + Tag sources with `VER-2-3-12'. + + * docs/CHANGES: Updated. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.3.12. + + * README, Jamfile (RefDoc), + builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html, + builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj, + builds/win32/visualce/index.html, + builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2005-ce/index.html, + builds/wince/vc2008-ce/freetype.vcproj, + builds/wince/vc2008-ce/index.html: s/2.3.11/2.3.12/, s/2311/2312/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 12. + + * builds/unix/configure.raw (version_info): Set to 10:0:4. + +2010-02-12 suzuki toshiya + + Improve autotool version checking to work with beta releases. + + * autogen.sh (check_tool_version): Improve the extraction of version + number from "tool --version" output. Some beta releases of + autotools have extra strings before version number. + +2010-02-12 suzuki toshiya + + Fix overallocating bug in FT_Outline_New_Internal(). + + * src/base/ftoutln.c (FT_Outline_New_Internal): The length of + FT_Outline->points[] should be numPoints, not 2 * numPoints. + Found by Paul Messmer, see + http://lists.gnu.org/archive/html/freetype-devel/2010-02/msg00003.html + +2010-02-10 Ken Sharp + + Really fix Savannah bug #28678 (part 2). + + Since we consider `sbw' for the horizontal direction only, we still have + to synthesize vertical metrics if the user wants to use the vertical + writing direction. + + * src/cff/cffgload.c (cff_slot_load), src/cid/cidgload.c + (cid_slot_load_glyph), src/type1/t1gload.c (T1_Load_Glyph): + Synthesize vertical metrics (only) if FT_LOAD_VERTICAL_LAYOUT is + set. + +2010-02-10 Ken Sharp + + Really fix Savannah bug #28678 (part 1). + + After long discussion, we now consider the character width vector + (wx,wy) returned by the `sbw' Type 1 operator as being part of *one* + direction only. For example, if you are using the horizontal + writing direction, you get the horizontal and vertical components of + the advance width for this direction. Note that OpenType and CFF fonts + don't have such a vertical component; instead, the GPOS table can be + used to generate two-dimensional advance widths (but this isn't + handled by FreeType). + + * include/freetype/ftincrem.h (FT_Incremental_MetricsRec): Add + `advance_v' field to hold the vertical component of the advance + value. + + * src/truetype/ttgload.c (tt_get_metrics), src/cff/cffgload.c + (cff_slot_load), src/type1/t1gload.c + (T1_Parse_Glyph_And_Get_Char_String), src/cid/cidgload.c + (cid_load_glyph): Use it. + +2010-02-08 Werner Lemberg + + * devel/ftoption.h [FT_CONFIG_OPTION_PIC]: Define. + +2010-02-04 suzuki toshiya + + Prevent NULL pointer dereference passed to FT_Module_Requester. + + * src/sfnt/sfdriver.c (sfnt_get_interface): Don't use `module'. + * src/psnames/psmodule.c (psnames_get_interface): Ditto. + + * src/cff/cffdrivr.c (cff_get_interface): Check NULL `driver'. + * src/truetype/ttdriver.c (tt_get_interface): Ditto. + +2010-01-29 suzuki toshiya + + Fix memory leaks in previous patch. + + * src/sfnt/sfobjs.c (sfnt_load_face): Don't overwrite the strings + allocated for face->root.family_name and style_name. + +2010-01-29 suzuki toshiya + + New parameters for FT_Open_Face() to ignore preferred family names. + + Preferred family names should be used for legacy systems that + can hold only a few faces (<= 4) for a family name. Suggested by + Andreas Heinrich. + http://lists.gnu.org/archive/html/freetype/2010-01/msg00001.html + + * include/freetype/ftsnames.h (FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY, + FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY): Define. + + * src/sfnt/sfobjs.c (sfnt_load_face): Check the arguments and + ignore preferred family and subfamily names if requested. + +2010-01-27 Ken Sharp + + Fix Savannah bug #28678. + + * src/cff/cffgload.c (cff_slot_load), src/cid/cidgload.c + (cid_load_glyph): Handle vertical metrics correctly. + + * src/type1/t1gload.c (T1_Parse_Glyph_And_Get_Char_String): Handle + vertical metrics correctly. + (T1_Load_Glyph): Don't synthesize vertical metrics. + +2010-01-14 Werner Lemberg + + Make FT_Set_Transform work if no renderer is available. + + * src/base/ftobjs.c (FT_Load_Glyph): Apply `standard' transformation + if no renderer is compiled into the library. + +2010-01-14 Werner Lemberg + + Fix compilation warning. + + * src/base/ftbase.h: s/LOCAL_DEF/LOCAL/. + * src/base/ftobjc.s: Include ftbase.h conditionally. + +2010-01-11 Kwang Yul Seo + + Provide inline assembly code for RVCT compiler. + This is Savannah patch #7059. + + * include/freetype/config/ftconfig.h (FT_MULFIX_ASSEMBLER, + FT_MulFix_arm) [__CC_ARM || __ARM_CC]: Define. + +2010-01-08 Ken Sharp + + Fix Savannah bug #28521. + + Issue #28226 involved a work-around for a font which used the + `setcurrentpoint' operator in an invalid way; this operator is only + supposed to be used with the result of OtherSubrs, and the font used + it directly. The supplied patch removed the block of code which + checked this usage entirely. + + This turns out to be a Bad Thing. If `setcurrentpoint' is being + used correctly it should reset the flex flag in the decoder. If we + don't do this then the flag never gets reset and we omit any further + contours from the glyph (at least until we close the path or + similar). + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings) + : Handle `flex_state' correctly. + +2010-01-05 Werner Lemberg + + Apply reports from clang static analyzer. + + * src/lzw/ftlzw.c (ft_lzw_file_init), src/base/ftstroke.c + (FT_Stroker_ParseOutline), src/base/ftsynth.c + (FT_GlyphSlot_Embolden): Remove dead code. + + * src/base/ftpatent.c (_tt_check_patents_in_table): Initialize + `offset_i' and `length_i'. + +2010-01-05 Ralph Giles + + Enable the incremental font interface by default. + + Ghostscript requires the incremental font interface for handling + some Postscript documents. It is moving to using FreeType as its + primary renderer; supporting this in the default build makes it + Ghostscript to be linked against the system FreeType when one is + available. + + * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_INCREMENTAL): + Uncomment. + +2010-01-05 Werner Lemberg + + Fix Savannah bug #28395. + + * src/truetype/ttdriver.c (Load_Glyph), src/type1/t1gload.c + (T1_Loada_Glyph): Don't check `num_glyphs' if incremental interface + is used. + +2010-01-05 Ken Sharp + + Make Type 1 `seac' operator work with incremental interface. + This fixes Savannah bug #28480. + + * src/psaux/t1decode.c (t1operator_seac): Don't check `glyph_names' + if incremental interface is used. + +2010-01-04 Ken Sharp + + Make incremental interface work with TrueType fonts. + This fixes Savannah bug #28478. + + * src/truetype/ttgload.c (load_truetype_glyph): Don't check + `glyf_offset' if incremental interface is used. + +2009-12-31 Lars Abrahamsson + + Make compilation with FT_CONFIG_OPTION_PIC work again. + + * src/base/ftglyph.c (FT_Glyph_To_Bitmap) [FT_CONFIG_OPTION_PIC]: + Declare `library' for FT_BITMAP_GLYPH_CLASS_GET. + + * src/base/ftinit.c (ft_destroy_default_module_classes, + ft_create_default_module_classes): Use proper casts (needed for C++ + compilation). + + * src/sfnt/ttcmap.c (tt_cmap13_class_rec): Use FT_DEFINE_TT_CMAP. + +2009-12-22 Marc Kleine-Budde + + Make freetype-config aware of $SYSROOT. + This is Savannah patch #7040. + + * builds/unix/freetype-config.in: Decorate with ${SYSROOT} where + appropriate. + +2009-12-20 Werner Lemberg + + Fix compiler warning. + Reported by Sean. + + * src/base/ftdbgmem.c [!FT_DEBUG_MEMORY]: ANSI C doesn't like empty + source files; however, some compilers warn about an unused variable + declaration. This is now replaced with a typedef. + +2009-12-18 Werner Lemberg + + Fix Savannah bug #28320. + + There exist corrupt, subsetted fonts (embedded in PDF files) which + contain a private dict that ends with an unterminated floating point + number (no operator following). We now ignore this error (as + acrobat does). + + * src/cff/cffparse.c (cff_parser_run): Don't emit a syntax error for + unterminated floating point numbers. + +2009-12-16 Werner Lemberg + + Really fix compiler warnings. + Reported by Sean. + + * src/truetype/ttgxvar.c (GX_PT_POINTS_ARE_WORDS, + GX_PT_POINT_RUN_COUNT_MASK): Convert enum values to macros. + +2009-12-16 suzuki toshiya + + Improve configure.raw to copy some options from CFLAGS to LDFLAGS. + The linker of Mac OS X 10.6 is sensitive to the architecture. If + the architectures are specified explicitly for the C compiler, the + linker requires the architecture specifications too. + + * builds/unix/configure.raw: Replace `-isysroot' option parser by + more generic argument parser. + +2009-12-15 Werner Lemberg + + Fix compiler warnings. + Reported by Sean. + + * src/truetype/ttgxvar.c (ft_var_readpackeddeltas): Fix counter data + type. + +2009-12-14 Ken Sharp + + Ignore invalid `setcurrentpoint' operations in Type 1 fonts. + This fixes Savannah bug #28226. + + At least two wild PostScript files of unknown provenance contain + Type 1 fonts, apparently converted from TrueType fonts in earlier + PDF versions of the files, which use the `setcurrentpoint' operator + inappropriately. + + FreeType currently throws an error in this case, but Ghostscript and + Adobe Distiller both accept the fonts and ignore the problem. This + commit #ifdefs out the check so PostScript interpreters using + FreeType can render these files. + + The specification says `setcurrentpoint' should only be used to set + the point after a `Subr' call, but these fonts use it to set the + initial point to (0,0). Unnecessarily so, as they correctly use an + `hsbw' operation which implicitly sets the initial point. + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings) + : Comment out code. + +2009-12-14 Bram Tassyns + + Fix parsing of /CIDFontVersion. + This fixes Savannah bug #28287. + + * src/cid/cidtoken.h: `cid_version' in CID_FaceInfoRec (in + t1tables.h) is of type FT_Fixed. + +2009-12-14 Werner Lemberg + + Trace glyph index in CID module. + Suggested in Savannah patch #7023. + + * src/cid/cidgload.c (cid_load_glyph): Add tracing message. + +2009-12-03 Werner Lemberg + + Fix compiler warnings. + + * src/truetype/ttgload.c (tt_get_metrics): Put `Exit' label into the + proper preprocessor conditional. + * src/pfr/pfrobjs.c (pfr_slot_load): Pacify gcc. + +2009-11-25 John Tytgat + + Better handling of start of `eexec' section. + This fixes Savannah bug #28090. + + * src/type1/t1parse.c (T1_Get_Private_Dict): Skip all whitespace + characters before start of `eexec' section. + +2009-11-20 Werner Lemberg + + Fix Savannah bug #27742. + + * src/base/ftstroke.c (ft_stroker_outside): Avoid silent division by + zero, using a threshold for `theta'. + +2009-11-20 Werner Lemberg + + Fix Savannah bug #28036. + + * src/type1/t1afm.c (t1_get_index): Fix comparison. + +2009-11-16 Werner Lemberg + + Fix compiler warnings. + Reported by Kevin Blenkinsopp . + + * src/sfnt/ttload.c (check_table_dir): Use proper data type. + +2009-11-15 Werner Lemberg + + Really fix FreeDesktop bug #21197. + This also fixes Savannah bug #28021. + + * src/autofit/aflatin.c (af_latin_metrics_check_digits), + src/autofit/aflatin2.c (af_latin2_metrics_check_digits): Fix loop. + +2009-11-15 Werner Lemberg + + Add tracing messages for advance values. + + * src/base/ftobjs.c (FT_Load_Glyph), src/truetype/ttgload.c + (TT_Get_HMetrics, TT_Get_VMetrics): Do it. + +2009-11-08 Werner Lemberg + + Fix compiler warning. + Reported by Jeremy Manson . + + * src/truetype/ttgload.c (load_truetype_glyph): Initialize `error'. + +2009-11-04 Werner Lemberg + + Remove compiler warning. + Reported by Sean McBride . + + * src/tools/apinames.c (read_header_file): Use a cast to + `int', as specified in the printf(3) man page. + +2009-11-04 Werner Lemberg + + Fix Savannah bug #27921. + + * src/cff/cffobjs.c (cff_face_init), src/cid/cidobjs.c + (cid_face_init), src/type1/t1afm.c (T1_Read_Metrics), + src/type1/t1objs.c (T1_Face_Init): Don't use unsigned constant + values for rounding if the argument can be negative. + +2009-11-03 Bram Tassyns + + Add basic support for Type1 charstrings in CFF. + This fixes Savannah bug #27922. + + * src/cff/cffgload.c (CFF_Operator, cff_argument_counts): Handle + `seac', `sbw', and `setcurrentpoint' opcodes. + (cff_compute_bias): Add parameter to indicate the charstring type. + Update all callers. + (cff_operator_seac): Add parameter for side bearing. + (cff_decoder_parse_charstrings): Updated for more Type1 support. + +2009-11-03 Werner Lemberg + + Return correct `linearHoriAdvance' value for embedded TT bitmaps too. + Reported by Jeremy Manson . + + src/truetype/ttgload.c (load_truetype_glyph): Add parameter to + quickly load the glyph header only. + Update all callers. + (tt_loader_init): Add parameter to quickly load the `glyf' table + only. + Update all callers. + (TT_Load_Glyph): Compute linear advance values for embedded bitmap + glyphs too. + +2009-11-03 Werner Lemberg + + Improve code readability. + + * src/ttgload.c (load_truetype_glyph): Move metrics calculation + to... + (tt_get_metrics): This new function. + +2009-10-26 Bram Tassyns + + Fix Savannah bug #27811. + + * src/truetype/ttxgvar.c (ft_var_readpackeddeltas): Fix + signed/unsigned mismatch. + +2009-10-19 Ning Dong + + Fix handling of `get' and `put' CFF instructions. + + * src/cff/cffgload.c (cff_decoder_parse_charstrings) : Appendix B of Adobe Technote #5177 limits the number of + elements for the `get' and `put' operators to 32. + * src/cff/cffgload.h (CFF_MAX_TRANS_ELEMENTS): Define. + (CFF_Decoder): Use it for `buildchar' and remove `len_buildchar'. + +2009-10-18 Werner Lemberg + + Fix handling of `dup' CFF instruction. + Problem and solution reported by Ning Dong . + + * src/cff/cffgload.c (cff_decoder_parse_charstrings) : + Increase `args' by 2, not 1. + +2009-10-10 Werner Lemberg + + * Version 2.3.11 released. + ========================== + + + Tag sources with `VER-2-3-11'. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.3.11. + + * README, Jamfile (RefDoc), builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualce/index.html, + builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj: s/2.3.10/2.3.11/, s/2310/2311/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 11. + + * builds/unix/configure.raw (version_info): Set to 9:22:3. + +2009-10-10 Werner Lemberg + + * docs/CHANGES, docs/release: Updated. + +2009-10-10 suzuki toshiya + + * src/pcf/pcfread.c (pcf_get_properties): Fix a bug in the nprops + truncation. Reported by Martin von Gagern and Peter Volkov. + https://bugs.gentoo.org/288357 and https://bugs.gentoo.org/288256 + +2009-10-06 Werner Lemberg + + * Version 2.3.10 released. + ========================== + + + Tag sources with `VER-2-3-10'. + + * builds/toplevel.mk (major, minor, patch): Fix regexp to allow more + than a single digit. + (dist): We now use git. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.3.10. + + * README, Jamfile (RefDoc), builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualce/index.html, + builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj: s/2.3.9/2.3.10/, s/239/2310/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 10. + + * builds/unix/configure.raw (version_info): Set to 9:21:3. + +2009-10-06 Werner Lemberg + + Fix `make multi'. + + * src/cache/ftccache.c, src/cache/ftcsbits.c (FT_COMPONENT): Define. + + * src/sfnt/sfdriver.c: Include FT_INTERNAL_DEBUG_H. + +2009-09-27 suzuki toshiya + + [cache] Fix Savannah bug #27441, clean up Redhat bugzilla #513582. + Tricky casts in FTC_{CACHE,GCACHE,MRULIST}_LOOKUP_CMP() are removed. + Now these functions should be called with FTC_Node or FTC_MruNode + variable, and the caller should cast them to appropriate pointers to + concrete data. These tricky casts can GCC-4.4 optimizer (-O2) + confused and the crashing binaries are generated. + + * src/cache/ftcmru.h (FTC_MRULIST_LOOKUP_CMP): Drop tricky cast. + Now the 4th argument `node' of this function should be typed as + FTC_MruNode. + + * src/cache/ftcglyph.h (FTC_GCACHE_LOOKUP_CMP): For inline + implementation, new temporal variable FTC_MruNode `_mrunode' to take + the pointer from FTC_MRULIST_LOOKUP_CMP(). For non-inline + implementation, tricky cast is dropped. + + * src/cache/ftcmanag.c (FTC_SIZE_NODE): New macro casting + to FTC_SizeNode. + (FTC_Manager_LookupSize): Replace FTC_SizeNode `node' by FTC_MruNode + `mrunode', and FTC_SIZE_NODE() is inserted. + (FTC_FACE_NODE): New macro casting to FTC_FaceNode. + (FTC_Manager_LookupFace) Replace FTC_FaceNode `node' by FTC_MruNode + `mrunode', and FTC_FACE_NODE() is inserted. + + * src/cache/ftcbasic.c (FTC_ImageCache_Lookup): Change the type of + `node' from FTC_INode to FTC_Node. Extra casting macro FTC_NODE() + is dropped. + (FTC_ImageCache_LookupScaler): Ditto. + (FTC_SBitCache_Lookup): Change the type of `node' from FTC_SNode to + FTC_Node. Extra casting macro FTC_NODE() is dropped. FTC_SNODE() + is inserted. + (FTC_SBitCache_LookupScaler): Ditto. + + * src/cache/ftccmap.c (FTC_CMapCache_Lookup): Change the type of + `node' from FTC_CMapNode to FTC_Node. Extra casting macro + FTC_NODE() is dropped, FTC_CMAP_NODE() is inserted. + +2009-09-25 suzuki toshiya + + [cache, psaux, type1] Fix for multi build. + In multi build, some cpp functions are left as unresolved symbols. + + * src/cache/ftcbasic.c: Include FT_INTERNAL_DEBUG_H for FT_TRACE1(). + + * src/psaux/t1decode.c: Include FT_INTERNAL_CALC_H for + FIXED_TO_INT(). + * src/type1/t1gload.c: Ditto. + * src/type1/t1objs.c: Ditto. + +2009-09-25 suzuki toshiya + + [autofit] Fix for multi build. + + * src/autofit/afmodule.h: Include FT_INTERNAL_OBJECTS_H to use + FT_DECLARE_MODULE() macro in multi build. + + * src/autofit/aflatin.c: Include to handle + FT_ADVANCES_H correctly in multi build. + +2009-09-24 suzuki toshiya + + [cache] Check the face filled by FTC_Manager_LookupFace(). + + * src/cache/ftcbasic.c (ftc_basic_family_get_count): Return + immediately if FTC_Manager_LookupFace() fills face by NULL. Such + case can occur when the code is optimized by GCC-4.2.x. + +2009-09-23 Werner Lemberg + + * docs/CHANGES: Updated. + +2009-09-12 Werner Lemberg + + [raster] Fix 5-levels grayscale output. + This was broken since version 2.3.0. + + * src/raster/ftraster.c (count_table): Use pre-2.3.0 values (which + were then computed dynamically). + (Vertical_Gray_Sweep_Step): Updated. + + (ft_black_render): Initialize `worker->gray_lines' (problem found by + valgrind). + + (FT_RASTER_OPTION_ANTI_ALIASING, DEBUG_RASTER): Dont' #undef, just + comment out. + +2009-09-12 suzuki toshiya + + Improve configure.raw for cross build. + + * builds/unix/configure.raw: Remove temporal files created by the + suffix checking for CC_BUILD. Set XX_ANSIFLAGS and XX_CFLAGS when + cross compiler is GCC. AC_PROG_CC checks whether the cross compiler + is GCC, its result is stored in GCC. + +2009-09-12 suzuki toshiya + + [BDF] Modify hash API to take size_t value instead of void *. + + The hash API in BDF driver is designed to be generic, it takes + void * typed data. But BDF driver always gives an unsigned long + integer (the index to a property). To reduce non-essential + casts from unsigned long to void* and from void* to unsigned + long, the hash API is changed to take size_t integer. + The issue of incompatible cast between unsigned long and void* + on LLP64 platform is reported by NightStrike from MinGW-Win64 + project. See + http://lists.gnu.org/archive/html/freetype/2009-09/msg00000.html + + * src/bdf/bdf.h: The type of hashnode->data is changed from + void* to size_t. + + * src/bdf/bdflib.c (hash_insert): Get size_t data, instead of + void* data. + (bdf_create_property): Get the name length of new property by + size_t variable, with a cut-off at FT_ULONG_MAX. + (_bdf_set_default_spacing): Get the name length of the face by + size_t variable, with a cut-off at 256. + (bdf_get_property): Get the property id by size_t variable to + reduce the casts between 32-bit prop ID & hashnode->data during + simple copying. + (_bdf_add_property): Ditto. + (_bdf_parse_start): Calculate the index to the property array + by size_t variable. + (bdf_get_font_property): Drop a cast to unsigned long. + +2009-09-10 suzuki toshiya + + [Win64] Improve the computation of random seed from stack address. + + On LLP64 platform, the conversion from pointer to FT_Fixed need + to drop higher 32-bit. Explict casts are required. Reported by + NightStrike from MinGW-w64 project. See + http://lists.gnu.org/archive/html/freetype/2009-09/msg00000.html + + * src/cff/cffgload.c: Convert the pointers to FT_Fixed explicitly. + + * src/psaux/t1decode.c: Ditto. + + +2009-09-03 Werner Lemberg + + [raster] Improvements for stand-alone mode. + + * src/raster/rules.mk: Don't handle ftmisc.h. It is needed for + stand-alone mode only. + + * src/raster/ftmisc.h (FT_MemoryRec , FT_Alloc_Func, FT_Free_Func, + FT_Realloc_Func): Copy declarations from ftsystem.h. + +2009-09-02 Bram Tassyns + + Improve vertical metrics calculation (Savannah bug #27364). + + The calculation of `vertBearingX' is not defined in the OTF font + spec so FreeType does a `best effort' attempt. However, this value + is defined in the PDF and PostScript specs, and that algorithm is + better than the one FreeType currently uses: + + FreeType: Use the middle of the bounding box as the X coordinate + of the vertical origin. + + Adobe PDF spec: Use the middle of the horizontal advance vector as + the X coordinate of the vertical origin. + + FreeType's algorithm goes wrong if you have a really small glyph + (like the full-width, circle-like dot at the end of the sentence, as + used in CJK scripts) with large bearings. With the FreeType + algorithm this dot gets centered on the baseline; with the PDF + algorithm it gets the correct location (in the top right). Note + that this is a serious issue, it's like printing the dot at the end + of a Roman sentence at the center of the textline instead of on the + baseline like it should. So i believe the PDF spec's algorithm + should be used in FreeType as well. + + The `vertBearingY' value for such small glyphs is also very strange + if no `vmtx' information is present, since the height of the bbox is + not representable for the height of the glyph visually (the + whitespace up to the baseline is part of the glyph). The fix also + includes some code for a better estimate of `vertBearingY'. + + * src/base/ftobjs.c (ft_synthesize_vertical_metrics): `vertBearingX' + is now calculated as described by the Adobe PDF Spec. Estimate for + `vertBearingY' now works better for small glyphs completely above or + below the baseline into account. + + * src/cff/cffgload.c (cff_slot_load): `vertBearingX' is now + calculated as described by the Adobe PDF Spec. Vertical metrics + information was always ignored when FT_CONFIG_OPTION_OLD_INTERNALS + was not defined. + + * src/truetype/ttgload.c (compute_glyph_metrics): `vertBearingX' is + now calculated as described by the Adobe PDF Spec. + +2009-09-01 John Tytgat + + Fix custom cmap for empty Type 1 font (Savannah bug #27294). + + * include/freetype/internal/t1types.h (T1_EncodingRecRec_): Update + comment to reflect revised code_last meaning. + * src/type1/t1load.c (T1_Open_Face), src/type42/t42objs.c + (T42_Open_Face): Assign max_char as highest character code + 1 and + use this for T1_EncodingRecRec_::code_last. + * src/psaux/t1cmap.c (t1_cmap_custom_init): Follow revised + T1_EncodingRecRec_::code_last meaning. + +2009-08-25 Werner Lemberg + + Fix rendering of horizontally compressed CFFs. + Bug reported by Ivan Nincic . + + * src/cff/cffgload.c (cff_slot_load): Thinko: Check `xx' element of + `font_matrix' also. + + * docs/CHANGES: Updated. + +2009-08-03 suyu0925@gmail.com + + Don't call `ft_fseek' every time when executing `ft_fread'. + + * src/base/ftstream.c (FT_Stream_Seek), src/base/ftsystem.c + (ft_ansi_stream_io): Implement it. + +2009-07-31 suzuki toshiya + + sfnt: Cast a charcode to 32-bit in cmap format 14 parser. + + * src/sfnt/ttcmap.c (tt_cmap14_char_var_index, + tt_cmap14_char_var_isdefault, tt_cmap14_char_variants, + tt_cmap14_variant_chars): Correct mismatches from + FT_CMap_CharVarIndexFunc prototype, FT_ULong arguments + are replaced by FT_UInt32 arguments. + +2009-07-31 suzuki toshiya + + sfnt: Cast a charcode to 32-bit in cmap format 12 parser. + + * src/sfnt/ttcmap.c (tt_cmap12_char_next): + Insert explicit cast from FT_UFast to FT_UInt32 + for return value. + +2009-07-31 suzuki toshiya + + psaux: Fix a few casts to FT_Int32 value. + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings): + Fix a few casts setting `value' from FT_Long to FT_Int32, + because `value' is typed as FT_Int32 since 2009-06-22. + +2009-07-31 suzuki toshiya + + sfnt: Fix a data type mismatching with its source. + + * src/sfnt/ttcmap.c (tt_cmap13_char_next): Fix the + type of `gindex' from FT_ULong to FT_UInt because + it is set by FT_UInt tt_cmap13_char_map_binary() or + TT_CMap13->cur_gindex. + +2009-07-31 suzuki toshiya + + sfnt: Extend a few local variables to load 32-bit values. + + * src/sfnt/ttkern.c (tt_face_load_kern): Extend `count' + and `kern' to load 32-bit values. + +2009-07-31 suzuki toshiya + + pfr: Extend `num_aux' to take 32-bit value. + + * src/pfr/pfrload.c (pfr_phy_font_load): Extend + `num_aux' to load 32-bit value. + +2009-07-31 suzuki toshiya + + pcf: Truncate FT_ULong `nprops' to fit to int PCF_Face->nprops. + + * src/pcf/pcfread.c (pcf_get_properties): Load `nprops' + as FT_ULong value from PCF file, but truncate it as + int to fit PCF_Face->nprops. The number of truncated + properties is shown in the trace message. + +2009-07-31 suzuki toshiya + + gxvalid: Extend a few local variables to reduce the casts. + + * src/gxvalid/gxvmorx.c (gxv_morx_subtables_validate): + Extend `type' and `rest' to take FT_ULong values. + +2009-07-31 suzuki toshiya + + gxvalid: Extend `settingTable' to take 32-bit offset. + + * src/gxvalid/gxvfeat.c (gxv_feat_name_validate): + Extend `settingTable' to take 32-bit offset. + +2009-07-31 suzuki toshiya + + autofit: Cast FT_Long glyph_count to compare with FT_UInt GID. + + * src/autofit/afglobal.c (af_face_globals_is_digit, + af_face_globals_compute_script_coverage): Cast FT_Long + globals->glyph_count to FT_ULong, to compare with FT_UInt + gindex. + +2009-07-31 suzuki toshiya + + smooth: Exclude 16-bit system in invalid pitch/height check. + + * src/smooth/ftsmooth.c (ft_smooth_render_generic): + pitch and height are typed as FT_UInt but checked to fit + 16-bit range, to avoid the overflows. On 16-bit system, + this checking inserts a conditional that never occurs. + +2009-07-03 suzuki toshiya + + cff: Type large constants > 0x7FFF as long for 16-bit systems. + + * src/cff/cffload.c (cff_charset_load): Type large + constants > 0x7FFF as long, because normal constants + are typed signed integer that is less than 0x8000 on + 16-bit systems. + +2009-07-31 suzuki toshiya + + base: Remove an unused variable. + + * src/base/ftglyph.c (FT_Glyph_To_Bitmap): Remove an + unused variable `library'. glyph->library is used. + +2009-07-31 suzuki toshiya + + cache: Check higher bits in flags for non ILP32 systems. + + 4 public functions ought to take FT_ULong flags, but take + FT_UInt flags. To keep binary compatibility, we drop higher + bits on non ILP32 platforms, + ILP64 systems: No drop occurs. + LP64 systems: Higher bits are not used. + 16-bit systems: Drop can occur. + See + http://lists.gnu.org/archive/html/freetype-devel/2008-12/msg00065.html + These functions will be refined to take FT_ULong flags in + next bump with incompatible API change. + + * src/cache/ftcbasic.c (FTC_ImageCache_Lookup): + Check `flags' in `type', the 2nd argument. + (FTC_SBitCache_Lookup): Ditto. + (FTC_ImageCache_LookupScaler): Check `load_flags', + the 3rd argument. + (FTC_SBitCache_LookupScaler): Ditto. + +2009-07-31 suzuki toshiya + + sfnt: Ignore invalid GIDs in glyph name lookup. + + * include/freetype/internal/fttrace.h: + New trace module for sfdriver.c is added. + + * src/sfnt/sfdriver.c (sfnt_get_name_index): + Restrict glyph name lookup to FT_UInt GID. + Genuine TrueType can hold 16-bit glyphs. + +2009-07-31 suzuki toshiya + + pcf: Fix a comparison between FT_Long and FT_ULong. + + * src/pcf/pcfread.c (pcf_get_bitmaps): Return an error + if PCF_Face->nemetrics is negative. + +2009-07-31 suzuki toshiya + + gxvalid: Guarantee `nFeatureFlags' size up to 32-bit. + + * src/gxvalid/gxvmort.c (gxv_mort_featurearray_validate): + Extend the 3rd argument `nFeatureFlags' to FT_ULong. + * src/gxvalid/gxvmort.h: Ditto. + +2009-07-31 suzuki toshiya + + sfnt: Insert explicit cast for LP64 system. + + * src/sfnt/ttkern.c (tt_face_load_kern): Insert + cast from unsigned long to FT_UInt32. + +2009-07-31 suzuki toshiya + + gxvalid: Guarantee `just' table size upto 32-bit. + + * src/gxvalid/gxvjust.c (gxv_just_validate): + The type of `offset' is changed from FT_UInt to + FT_Offset, for 16-bit platforms. + +2009-07-31 suzuki toshiya + + gxvalid: Guarantee `trak' table size upto 32-bit. + + * src/gxvalid/gxvtrak.c (gxv_trak_validate): + The type of `offset' is changed from FT_UInt to + FT_Offset, for 16-bit platforms. + +2009-07-31 suzuki toshiya + + type1: Fix a data type mismatching with its source. + + * include/freetype/internal/t1types.h: The type of + T1_Face->buildchar is matched with T1_Decorder->top. + +2009-07-31 suzuki toshiya + + pfr: Fix a data type mismatching with its source. + + * src/pfr/pfrtypes.h: The type of PFR_KernItem->offset + is extended from FT_UInt32 to FT_Offset, because it is + calculated with the pointer difference, in + pfr_extra_item_load_kerning_pairs(). + +2009-07-31 suzuki toshiya + + pfr: Fix a data type mismatching with its source. + + * src/pfr/pfrtypes.h: The type of PFR_PhysFont->chars_offset + is extended from FT_UInt32 to FT_Offset, because it is + calculated with the pointer difference in pfr_phy_font_load(). + +2009-07-31 suzuki toshiya + + pfr: Fix a data type mismatching with its source. + + * src/pfr/pfrtypes.h: The type of PFR_PhyFont->bct_offset + is extended from FT_UInt32 to FT_Long, because it is + loaded by FT_STREAM_POS() in pfr_phy_font_load(). + +2009-07-31 suzuki toshiya + + smooth: Improve the format in debug message. + + * src/smooth/ftgrays.c (gray_dump_cells): Improve the + format specifications to dump variables. + +2009-07-31 suzuki toshiya + + sfnt: Fix a data type mismatching with its source. + + * src/sfnt/sfobjs.c (sfnt_load_face): The type of + local `flags' is matched with FT_Face->face_flags. + +2009-07-31 suzuki toshiya + + psaux: Fix a data type mismatching with its source. + + * include/freetype/internal/psaux.h: The type of + T1_DecorderRec.buildchar is matched with + T1_DecorderRec.top. + +2009-07-31 suzuki toshiya + + truetype: Extend TrueType GX packed deltas to FT_Offset. + + * src/truetype/ttgxvar.c (ft_var_readpackeddeltas): + The type of 2nd argument `delta_cnt' is changed from + FT_Int to FT_Offset, because its source can be cvt + table size calculated from stream position. + +2009-07-31 suzuki toshiya + + truetype: Extend mmvar_len to hold size_t values. + + * src/truetype/ttgxvar.h: The type of + GX_BlendRec.mmvar_len is changed from FT_Int to + FT_Offset, because TT_Get_MM_Var() calculates it + by sizeof() results. + +2009-07-31 suzuki toshiya + + truetype: Check invalid function number in IDEF instruction. + + * src/truetype/ttinterp.c (Ins_IDEF): Check + if the operand fits to 8-bit opcode limitation. + +2009-07-31 suzuki toshiya + + truetype: Check invalid function number in FDEF instruction. + + * src/truetype/ttinterp.c (Ins_FDEF): Check + if the operand fits 16-bit function number. + +2009-07-31 suzuki toshiya + + truetype: Truncate the deltas of composite glyph at 16-bit values. + + * src/truetype/ttgload.c (load_truetype_glyph): + Insert cast from FT_Long (deltas[i].{x,y}) to + FT_Int16 in the summation of deltas[] for composite + glyphs. Because deltas[i] is typed as FT_Pos, + its component x, y are typed as FT_Long, but + their sources are always FT_Int16 when they are + loaded by ft_var_readpackeddeltas(). However, + the limitation about the summed deltas is unclear. + +2009-07-31 suzuki toshiya + + truetype: Truncate the instructions upto 16-bit per a glyph. + + * src/truetype/ttgload.c (TT_Hint_Glyph): Truncate + the instructions upto 16-bit length per a glyph. + +2009-07-31 suzuki toshiya + + truetype: Cast the numerical operands to 32-bit for LP64 systems. + + * src/truetype/ttinterp.c (Ins_SPHIX, INS_MIAP, + Ins_MIRP): Insert cast from long (args[], the + operands passed to TrueType operator) to FT_Int32 + (the argument of TT_MulFix14()). + +2009-07-31 suzuki toshiya + + truetype: Cast the project vector to 32-bit for LP64 system. + + * src/truetype/ttinterp.c (Project, DualProject): + Insert casts from FT_Pos (the arguments `dx', `dy') + to FT_UInt32 (the argument to TT_DotFix14()). + +2009-07-31 suzuki toshiya + + truetype: Cast the scaling params to 32-bit for LP64 system. + + * src/truetype/ttgload.c (TT_Process_Composite_Component): + Insert casts from long (return value of FT_MulFix()) to + FT_Int32 (the argument to FT_SqrtFixed()). + +2009-07-31 suzuki toshiya + + sfnt: Cast a character code to FT_UInt32 for LP64 system. + + * src/sfnt/ttcmap.c (tt_cmap14_char_map_nondef_binary, + tt_cmap14_variants, tt_cmap14_char_variants, + tt_cmap14_def_char_count, tt_cmap14_get_def_chars, + tt_cmap14_get_nondef_chars, tt_cmap14_variant_chars) + Insert casts when FT_UInt32 variable is loaded by + TT_NEXT_{UINT24|ULONG}. Because most of them are + compared with FT_UInt32 values in public API, replacing + FT_UFast is not recommended. + +2009-07-31 suzuki toshiya + + sfnt: Cast a character code to FT_UInt32 for LP64 system. + + * src/sfnt/ttcmap.c (tt_cmap4_init, tt_cmap4_next): + Insert the casts from unsigned long constant to + FT_UInt32. + +2009-07-31 suzuki toshiya + + sfnt: Extend TT_BDF->strings_size to FT_ULong for huge BDF. + + * include/freetype/internal/tttypes.h: The type + of TT_BDF->string_size is extended from FT_UInt32 + to FT_ULong, because BDF specification does not + restrict the length of string. + * src/sfnt/ttbdf.c: The scratch variable `strings' + to load TT_BDF->string_size is matched with + TT_BDF->string_size. + +2009-07-31 suzuki toshiya + + psaux: Handle the string length by FT_Offset variables. + + * src/psaux/afmparse.c (afm_parser_next_key, + afm_tokenize, afm_parse_track_kern, + afm_parse_kern_pairs, afm_parse_kern_data, + afm_parser_skip_section, afm_parser_parse): + The length of key is handled by FT_Offset, + instead of FT_UInt. Although the length of + PostScript strings or name object is 16-bit, + AFM_STREAM_KEY_LEN() calculates the length + from the pointer difference. + + * src/psaux/afmparse.h (afm_parser_next_key): + Ditto. + +2009-07-31 suzuki toshiya + + pcf: Fix some data types mismatching with their sources. + + * src/pcf/pcfread.c (pcf_get_bitmaps): The types + of `nbitmaps', `i', `sizebitmaps' are matched with + the type of area FT_Bitmap.pitch * FT_Bitmap.rows. + +2009-07-31 suzuki toshiya + + pcf: Handle the string length by size_t variables. + + * src/pcf/pcfread.c (pcf_interpret_style): The types + of nn, len, lengths[4] are changed to size_t, because + they are loaded by (or compared with) ft_strlen(). + + * src/pcf/pcfutil.c (BitOrderInvert, TwoByteSwap, + FourByteSwap): The type of the 2nd argument `nbytes' + is changed to size_t, for similarity with ANSI C + string functions. + + * src/pcf/pcfdrivr.c (PCF_Glyph_Load): The type of + `bytes' is changed to FT_Offset, because it is passed + to FT_ALLOC(), via ft_glyphslot_alloc_bitmap(). At + least, using unsigned type is better. + +2009-07-31 suzuki toshiya + + pcf: Fix some data types mismatching with their sources. + + * src/pcf/pcfread.c (pcf_seek_to_table_type, + pcf_has_table_type): The type of 3rd argument + `ntables' is matched with PCF_Toc->count. + +2009-07-31 suzuki toshiya + + otvalid: Truncate the glyph index to 16-bit. + + * src/otvalid/otvalid.c (otv_validate): Checks + face->num_glyphs does not exceed 16-bit limit, + pass FT_UInt num_glyphs to backend functions + otv_{GPOS|GSUB|GDEF|JSTF|MATH}_validate(). + +2009-07-31 suzuki toshiya + + cache: Insert explict casts for LP64 systems. + + * src/cache/ftcbasic.c (FTC_ImageCache_Lookup, + FTC_SBitCache_Lookup): The type of FTC_ImageType->width + is FT_Int, so the cast to unsigned larger type FT_ULong + is introduced for the comparisons with 0x10000L for + LP64 platform. + +2009-07-31 suzuki toshiya + + cache: Fix some data types mismatching with their sources. + + * src/cache/ftccache.h: The type of return value + by FTC_Node_WeightFunc function is changed to + FT_Offset. The type of FTC_CacheClass->cache_size + is changed to FT_Offset, too. + + * src/cache/ftccback.h (ft_inode_weight, + ftc_snode_weight): Ditto. + + * src/cache/ftccmap.c (ftc_cmap_node_weight): Ditto. + + * src/cache/ftcimage.c (ftc_inode_weight, + FTC_INode_Weight): Ditto. + + * src/cache/ftcsbits.c (ftc_snode_weight, + FTC_SNode_Weight): Ditto. + + * src/cache/ftcmru.h: The type of + FTC_MruListClass->node_size is changed to FT_Offset, + because it is passed to FT_ALLOC() to specify the + size of buffer. + +2009-07-31 suzuki toshiya + + XXX_cmap_encoding_char_next() return FT_UInt32 values. + + * include/freetype/internal/services/svpscmap.h: + The size of the charcode value returned by + the function typed PS_Unicodes_CharNextFunc is + matched with its input charcode value. + + * src/cff/cffmap.c (cff_cmap_encoding_char_next, + cff_cmap_unicode_char_next): Ditto. + + * src/pfr/pfrmap.c (pfr_cmap_encoding_char_next): + Ditto. + + * src/psaux/t1cmap.c (t1_cmap_std_char_next, + t1_cmap_custom_char_next, t1_cmap_unicode_char_next): + Ditto. + + * src/psnames/psmodule.c (ps_unicodes_char_next): + Ditto. + + * src/winfonts/winfnt.c (fnt_cmap_char_next): + Ditto. + + * src/sfnt/ttcmap.c (tt_cmap0_char_next, + tt_cmap2_char_next, tt_cmap4_char_next, + tt_cmap6_char_next, tt_cmap10_char_next, + tt_cmap12_char_next, tt_cmap13_char_next): Ditto. + (tt_cmap14_char_variants): Handle base unicode + codepoint by FT_UInt32 variable to avoid overflow + on 16-bit platforms. + (tt_cmap14_ensure): The type of `num_results' is + extend to FT_UInt32, to cover unsigned 32-bit + `numVarSelectorRecords' in cmap14 table header. + +2009-07-31 suzuki toshiya + + truetype: Extend TT_Face->num_locations for broken TTFs. + + * include/freetype/internal/tttypes.h: + TT_Face->num_locations are extended from FT_UInt + to FT_ULong, to stand with broken huge loca table. + Some people insists there are broken TTF including + the glyphs over 16-bit limitation, in PRC market. + * src/truetype/ttpload.c (tt_face_load_loca): + Remove unrequired 16-bit truncation for FT_UInt + TT_Face->num_locations. + +2009-07-31 suzuki toshiya + + smooth: Fix some data types mismatching with their sources. + + * src/smooth/ftgrays.c: The type of `TCoord' is + matched to `TPos', because they are mixed in + gray_set_cell(). The type of TCell->x is extended + to `TPos', because gray_find_cell() sets it by + TWorker.ex. The type of TCell->cover is extended + to `TCoord', because gray_render_scanline() adds + TCoord value to it. The type of TWork.cover is matched + with TCell->cover. The types of + TWork.{max_cells,num_cells} are changed to FT_PtrDist, + because they are calculated from the memory addresses. + The type of TWork.ycount is changed to TPos, because + it is calculated from TPos variables. + (gray_find_cell): The type of `x' is matched with + its initial value ras.ex. + (gray_render_scanline): The types of `mod', `lift' + and `rem' are changed to TCoord, because their values + are set with explicit casts to TCoord. When ras.area + is updated by the differential values including + `delta', they are explicitly cast to TArea, because + the type of `delta' is not TArea but TCoord. + (gray_render_line): The type of `mod' is extended + from int to TCoord, because (TCoord)dy is added to mod. + (gray_hline): The argument `acount' is extended to + TCoord, to match with the parameters in the callers. + +2009-07-31 suzuki toshiya + + cff: Fix some data types mismatching with their sources. + + * src/cff/cffobjs.c (cff_face_init): The type of + `scaling' is matched with the scaling parameter + in FT_Matrix_Multiply_Scaled() and + FT_Vector_Transform_Scaled(). + + * src/cff/cffparse.c (cff_parse_real): The type of + `power_ten', `scaling', `exponent_add', + `integer_length', `fraction_length', + `new_fraction_length' and `shift' are matched with + the type of `exponent' to avoid unexpected truncation. + (cff_parse_fixed_scaled): The type of `scaling' is + matched with the `scaling' argument to + cff_parse_real(). + (cff_parse_fixed_dynamic): Ditto. + (cff_parse_font_matrix): The type of `scaling' is + matched with the `scaling' argument to + cff_parse_dynamic(). + +2009-07-31 suzuki toshiya + + autofit: Fix some data types mismatching with their sources. + + * src/autofit/afglobal.c: Correct the type of + AF_FaceGlobalsRec.glyph_count to match with + FT_Face->num_glyphs. + (af_face_globals_compute_script_coverage): + Insert explicit cast to compare + FT_Long AF_FaceGlobalsRec.glyph_count versus + FT_UInt gindex. The type of `nn' is changed + to scan glyph index upto AF_FaceGlobalsRec.glyph_count. + (af_face_globals_get_metrics): The type of `script_max' + is changed to cover size_t value. Insert explicit cast + to compare FT_Long AF_FaceGlobalsRec.glyph_count versus + FT_UInt gindex. + + * src/autofit/afhints.c (af_axis_hints_new_segment): + Insert explicit cast to calculate `big_max' from + integer and size_t values. + (af_axis_hints_new_edge): Ditto. + + * src/autofit/aflatin.c (af_latin_metrics_init_blues): + The type of `best_y' is matched to FT_Vector.y. + (af_latin_compute_stem_width): The type of `delta' is + matched to `dist' and `org_dist'. + +2009-07-31 suzuki toshiya + + autofit: Count the size of the memory object by ptrdiff_t. + + * src/autofit/afcjk.c (af_cjk_hint_edges): The + number of edges `n_edges' should be counted by + FT_PtrDist variable instead of FT_Int. + + * src/autofit/aflatin.c (af_latin_hint_edges): + Ditto. + + * src/autofit/aftypes.h: In AF_ScriptClassRec, + the size of metric `script_metrics_size' should + be counted by FT_Offset variable instead of FT_UInt. + + * src/autofit/afhints.c + (af_glyph_hints_align_strong_points): The cursors + for the edges `min', `max', `mid' in the memory + buffer should be typed FT_PtrDist. + +2009-07-31 suzuki toshiya + + autofit: Fix for unused variable `first'. + + * src/autofit/afhints.c (af_glyph_hints_reload): Insert + FT_UNUSED() to hide the unused variable warning. + +2009-07-31 suzuki toshiya + + Improve bitmap size or pixel variables for 16-bit systems. + + * include/freetype/config/ftstdlib.h: Introduce + FT_INT_MIN, to use in signed integer overflow in + 16-bit and 64-bit platforms. + + * include/freetype/internal/fttrace.h: Add a tracer + to ftsynth.c. + + * src/base/ftbitmap.c (FT_Bitmap_Embolden): Check + invalid strength causing integer overflow on 16-bit + platform. + + * src/base/ftcalc.c (ft_corner_orientation): Change + the internal calculation from FT_Int to FT_Long, to + avoid an overflow on 16-bit platforms. The caller of + this function should use only the sign of result, + so the cast to FT_Int is acceptable. + + * src/base/ftsynth.c: Introduce a tracer for synth module. + (FT_GlyphSlot_Embolden): Check invalid strength causing + integer overflow on 16-bit platform. + + * src/bdf/bdfdrivr.c (BDF_Face_Init): The glyph index + in FT2 API is typed as FT_UInt, although BDF driver + can handle unsigned long glyph index internally. To + avoid integer overflow on 16-bit platform, too large + glyph index should be excluded. + (BDF_Glyph_Load): The glyph pitch in FT2 is typed as + FT_UInt, although BDF driver can handle unsigned long + glyph pitch internally. To avoid integer overflow on + 16-bit platform, too large glyph pitch should not be + returned. + + * src/pfr/pfrsbit.c (pfr_slot_load_bitmap): The glyph + pitch in FT2 is typed as FT_UInt, although PFR font + format can include huge bitmap glyph with 24-bit pitch + (however, a glyph spends 16.7 pixel, it's not realistic). + To avoid integer overflow on 16-bit platform, huge + bitmap glyph should be excluded. + + * src/smooth/ftgrays.c (gray_hline): As FT_Span.x is + truncated to fit its type (16-bit short), FT_Span.y + should be truncated to fit its type (FT_Int). + + * src/cff/cffdrivr.c (cff_get_ros): CFF specification + defines the supplement in ROS as a real number. + Truncate it to fit public FT2 API. + + * src/cff/cffparse.c (cff_parse_cid_ros): Warn the + supplement if it is truncated or rounded in cff_get_ros(). + + * src/cff/cfftypes.h: Change the type of internal variable + `supplement' from FT_Long to FT_ULong to fit the signedness + to the type in public API. + +2009-07-31 suzuki toshiya + + psaux: Prevent invalid arguments to afm_parser_read_vals(). + + * src/psaux/afmparse.c (afm_parser_read_vals): Change + the type of `n' to prevent negative number how many + arguments should be parsed. + + * src/psaux/afmparse.h (afm_parser_read_vals): Ditto. + +2009-07-31 suzuki toshiya + + base: Prevent some overflows on LP64 systems. + + * src/base/ftadvance.c (FT_Get_Advances): Cast the + unsigned long constant FT_LOAD_ADVANCE_ONLY to FT_UInt32 + for LP64 platforms. + + * src/base/ftcalc.c (FT_Sqrt32): All internal variables + are changed to FT_UInt32 from FT_ULong. + (FT_MulDiv): Insert casts to FT_Int32 for LP64 platforms. + This function is designed for 32-bit integer, although + their arguments and return value are FT_Long. + + * src/base/ftobjs.c (FT_Get_Char_Index): Check `charcode' + is within unsigned 32-bit integer for LP64 platforms. + (FT_Face_GetCharVariantIndex): Check `charcode' and + `variantSelector' are within 32-bit integer for LP64 + platforms. + (FT_Face_GetCharsOfVariant): Check `variantSelector' is + within unsigned 32-bit integer for LP64 platforms. + + * src/base/fttrigon.c (ft_trig_downscale): The FT_Fixed + variable `val' and unsigned long constant FT_TRIG_SCALE + are cast to FT_UInt32, when calculates FT_UInt32. + (FT_Vector_Rotate): The long constant 1L is cast to + FT_Int32 to calculate FT_Int32 `half'. + +2009-07-31 suzuki toshiya + + cff: Cast the long variables to 32-bit for LP64 systems. + + * src/cff/cffdrivr.c (cff_get_advances): Insert + explicit cast to modify a 32-bit flag by unsigned + long constant. + + * src/cff/cffobjs.c (cff_face_init): Ditto. + + * src/cff/cffgload.c (cff_decoder_parse_charstrings): + Replace the casts to FT_Long by the casts to FT_Int32 + for LP64 platforms. + +2009-07-31 suzuki toshiya + + pcf: Improve PCF_PropertyRec.value names on LP64 platforms. + + * src/pcf/pcf.h: In PCF_PropertyRec.value, the member + `integer' is replaced by `l', `cardinal' is replaced + by `ul', to fix the difference between the name and + the types on LP64 platforms. + + * src/pcf/pcfdrivr.c (pcf_get_bdf_property): Reflect + PCF_PropertyRec.value change, with appropriate casts + to FT_Int32/FT_UInt32. Their destinations + BDF_PropertyRec.{integer|cardinal} are public and + explicitly defined as FT_Int32/FT_UInt32. + + * src/pcf/pcfread.c (pcf_get_properties, pcf_load_font): + Reflect PCF_PropertyRec.value change. + +2009-07-31 suzuki toshiya + + pcf: Fix some data types mismatching with their sources. + + * src/pcf/pcfdrivr.c (pcf_cmap_char_index): The type of + `code' is matched to PCF_Encoding->enc. + (pcf_cmap_char_next): The type of `charcode' is matched + to PCF_Encoding->enc. When *acharcode is set by charcode, + an overflow is checked and cast to unsigned 32-bit + integer. + +2009-07-31 suzuki toshiya + + bdf: Improve bdf_property_t.value names for LP64 platforms. + + * src/bdf/bdf.h: In bdf_property_t.value, the member + `int32' is replaced by `l', `card32' is replaced by + `ul', to fix the difference between the name and the + types on LP64 platforms. + + * src/bdf/bdfdrivr.c (BDF_Face_Init): Reflect + bdf_property_t.value change. + (bdf_get_bdf_property): Reflect bdf_property_t.value + change, with appropriate casts to FT_Int32/FT_UInt32. + Their destinations BDF_PropertyRec.{integer|cardinal} + are public and explicitly defined as FT_Int32/FT_UInt32. + + * src/bdf/bdflib.c (_bdf_add_property): Reflect + bdf_property_t.value change. + +2009-07-31 suzuki toshiya + + bdf: Fix some data types mismatching with their sources. + + * src/bdf/bdrdrivr.c (bdf_cmap_char_index): The type + of `code' is matched with BDF_encoding_el->enc. + (bdf_cmap_char_next): The type of `charcode' is + matched with BDF_encoding_el->enc. When *acharcode + is set by charcode, an overflow is checked and + cast to unsigned 32-bit integer. + +2009-07-31 suzuki toshiya + + autofit: Improve Unicode range definitions. + + * src/autofit/aftypes.h (AF_UNIRANGE_REC): New macro + to declare a range by two unsigned 32-bit integer, + to avoid 64-bit range definition on LP64 platforms. + + * src/autofit/aflatin.c (af_latin_uniranges): Ditto. + + * src/autofit/aflatin2.c (af_latin2_uniranges): Ditto. + + * src/autofit/afindic.c (af_indic_uniranges): Ditto. + + * src/autofit/afcjk.c (af_cjk_uniranges): Declare + the ranges by AF_UNIRANGE_REC. + +2009-07-31 suzuki toshiya + + smooth: Fix a data type mismatching with its source. + + * src/smooth/ftgrays.c (gray_sweep): The type of + `area' is matched with the 3rd argument `area' + of gray_hline(). + +2009-07-31 suzuki toshiya + + smooth: Fix a data type mismatching with its source. + + * src/smooth/ftgrays.c (gray_render_line): The type + of `area' is matched with TWorker.area. + +2009-07-31 suzuki toshiya + + cache: Disable the legacy compatibility if 16-bit system. + + * src/cache/ftcbasic.c (FTC_ImageCache_Lookup): Exclude + the legacy behaviour from 16-bit platform, because the + current hack cannot detect the caller uses this function + via legacy convension. + (FTC_SBitCache_Lookup): Ditto. + +2009-07-31 suzuki toshiya + + cache: Check 32-bit glyph index on 16-bit systems. + + * src/cache/ftcbasic.c (ftc_basic_family_get_count): + Check overflow caused by the face including large + number of glyphs > 64k. + +2009-07-31 suzuki toshiya + + cache: Fix some data types mismatching with their sources. + + * src/cache/ftccache.c (ftc_cache_resize): The types of + `p', `mask', `count' are matched with FTC_Cache->{p,mask}. + (FTC_Cache_Clear): The type of `old_index' is matched to + FTC_Cache->{p,mask}. + + * src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP): The type + of `_idx' is matched with FTC_Cache->{p,mask}. + +2009-07-31 suzuki toshiya + + cache: Fix some data types mismatching with their sources. + + * src/cache/ftcsbits.c (ftc_snode_load): The types + of `xadvance' and `yadvance' are matched with + FT_GlyphSlot->advance.{x|y}. + +2009-07-31 suzuki toshiya + + cache: Cast NULL to a required function type explicitly. + + * src/cache/ftcmanag.c (FTC_Manager_RemoveFaceID): + Insert explicit cast from NULL to function type. + +2009-07-31 suzuki toshiya + + fttypes.h: Cast FT_MAKE_TAG output to FT_Tag exlicitly. + + * include/freetype/fttypes.h (FT_MAKE_TAG): + Cast the result to FT_Tag. + +2009-07-31 suzuki toshiya + + psnames: Handle Unicode codepoints by FT_UInt32 variables. + + * src/psnames/psmodule.c (BASE_GLYPH): Cast the result + to unsigned 32-bit integer for LP64 platform. + (ps_unicode_value): Return the value by unsigned 32-bit + integer instead of unsigned long. + +2009-07-31 suzuki toshiya + + psaux: Use size_t variable to pass the buffer size. + + * src/psaux/psaux.h (to_bytes): The type of `max_bytes' + (the argument to pass the buffer size) is changed to + size_t, to match with ANSI C string functions. + + * src/psaux/psconv.h (PS_Conv_StringDecode, + PS_Conv_ASCIIHexDecode, PS_Conv_EexecDecode): Ditto. + + * src/psaux/psconv.c (PS_Conv_StringDecode, + PS_Conv_ASCIIHexDecode, PS_Conv_EexecDecode): Ditto. + + * src/psaux/psobjs.h (ps_parser_to_bytes): Ditto. + + * src/psaux/psobjs.c (ps_parser_to_bytes): Ditto. + +2009-07-31 suzuki toshiya + + type1: Use size_t variable to pass the string length. + + * psaux.h: The type of `len' (the argument to pass + the buffer size to the function in AFM_ParserRec) + is changed to size_t, to match with ANSI C string + functions. + + * t1afm.c (t1_get_index): Ditto. + + * test_afm.c (dummy_get_index): Ditto. + + * afmparse.c (afm_parser_read_vals): To call + AFM_ParserRec.get_index, the length of token + `len' is cast to size_t. + +2009-07-31 suzuki toshiya + + cid: Fix some data types mismatching with their sources. + + * src/cid/cidparse.c (cid_parser_new): The types of + `read_len' and `stream_len' are matched to + FT_Stream->size. Unrequired cast is removed. + +2009-07-31 suzuki toshiya + + cff: Fix for unused variable `rest'. + + * src/cff/cffparse.c (cff_parse_real): Insert + FT_UNUSED() to hide the unused variable warning. + +2009-07-31 suzuki toshiya + + cff: Fix some data types mismatching with their sources. + + * src/cff/cffgload.c (cff_slot_load): The types of + `top_upm' and `sub_upm' are matched with + CFF_FontRecDict->units_per_em. + + * src/cff/cffobjs.c (cff_size_select): Ditto. + (cff_size_request): Ditto. + +2009-07-31 suzuki toshiya + + bdf: Fix some data types mismatching with their sources. + + * bdflib.c (_bdf_list_ensure): The type of `num_items' + is matched with _bdf_list_t.used. Also the types of + `oldsize', `newsize', `bigsize' are matched too. + (_bdf_readstream): `cursor' is used as an offset to + the pointer, it should be typed as FT_Offset. Also + the types of `bytes', `start', `end', `avail' are matched. + + * bdfdrivr.c: The type of BDF_CMap->num_encodings is + matched with FT_CMap->clazz->size. + (bdf_cmap_char_index): The types of `min', `max', `mid' + are matched with BDF_CMap->num_encodings. The type of + `result' is matched with encoding->glyph. + (bdf_cmap_char_next): Ditto, the type of `code' is + matched with BDF_encoding_el.enc. + (bdf_interpret_style): The type of `lengths' is changed + to size_t, to take the value by ft_strlen(). Also the + types of `len', `nn', `mm' are matched. + +2009-07-31 suzuki toshiya + + sfnt: Count the size of the memory object by ptrdiff_t. + + * src/sfnt/ttbdf.c (tt_face_find_bdf_prop): The type of + `peroperty_len' is changed from FT_UInt to FT_Offset, + to match with size_t, which is appropriate type for the + object in the memory buffer. + +2009-07-31 suzuki toshiya + + lzw: Count the size of the memory object by ptrdiff_t. + + * src/lzw/ftzopen.h: The types of FT_LzwState->{buf_total, + stack_size} are changed from FT_UInt to FT_Offset, to match + with size_t, which is appropriate type for the object in + the memory buffer. + + * src/lzw/ftzopen.c (ft_lzwstate_stack_grow): The types of + `old_size' and `new_size' are changed from FT_UInt to + FT_Offset, to match with size_t, which is appropriate type + for the object in the memory buffer. + +2009-07-31 suzuki toshiya + + otvalid: Count the table size on memory by ptrdiff_t. + + * src/otvalid/otvgpos.c (otv_ValueRecord_validate): + Change the type of table size from FT_UInt to + FT_PtrDist because it is calculated by the memory + addresses. + +2009-07-31 suzuki toshiya + + otvalid: Prevent an overflow by GPOS/GSUB 32b-bit offset. + + * src/otvalid/otvgpos.c (otv_ExtensionPos_validate): + Extend ExtensionOffset from FT_UInt to FT_ULong, to + cover 32-bit offset on 16-bit platform. + + * src/otvalid/otvgsub.c (otv_ExtensionSubst_validate): + Ditto. + +2009-07-31 suzuki toshiya + + ftobjs.c: Prevent an overflow in glyph index handling. + + * src/base/ftobjs.c (FT_Face_GetCharsOfVariant): + Improve the cast in comparison to avoid the truncation. + +2009-07-31 suzuki toshiya + + Improve the variable types in raccess_make_file_name(). + + * src/base/ftrfork.c (raccess_make_file_name): + Change the type of cursor variable `tmp' to const char*, + to prevent the unexpected modification of original pathname. + (raccess_make_file_name): Change the type of new_length + to size_t. + +2009-07-31 suzuki toshiya + + ftpatent.c: Fix for unused variable `error'. + + * src/base/ftpatent.c (_tt_check_patents_in_range): + Fix warning for unused variable `error'. + +2009-07-31 suzuki toshiya + + type1: Check invalid string longer than PostScript limit. + + * src/type1/t1afm.c (t1_get_index): Check invalid string + which exceeds the limit of PostScript string/name objects. + +2009-07-31 suzuki toshiya + + gzip: Use FT2 zcalloc() & zfree() in ftgzip.c by default. + + * src/gzip/ftgzip.c (zcalloc, zcfree): Disable all + zcalloc() & zfree() by zlib in zutil.c, those in + ftgzip.c by FT2 are enabled by default. To use + zlib zcalloc() & zfree(), define USE_ZLIB_ZCALLOC. + See discussion: + http://lists.gnu.org/archive/html/freetype-devel/2009-02/msg00000.html + +2009-07-31 suzuki toshiya + + gzip: Distinguish PureC from TurboC on MSDOS. + + * src/gzip/zutil.c (zcalloc, zcfree): Enable only for + MSDOS platform. + +2009-07-31 suzuki toshiya + + gxvalid: Insert PureC pragma to allow unevaluated variables. + + * builds/atari/ATARI.H: Insert PureC pragma not to + warn against set-but-unevaluated variable in gxvalid + module. + +2009-07-31 suzuki toshiya + + gxvalid: Pass the union by the pointer instead of the value. + + * src/gxvalid/gxvcommn.h: + - Declare new type `GXV_LookupValueCPtr'. + - Update the type of the 2nd argument to pass GXV_LookupValueDesc + data to the function prototyped as GXV_Lookup_Value_Validate_Func, + from GXV_LookupValueDesc to GXV_LookupValueCPtr. + - Likewise for the function prototyped as + GXV_Lookup_Fmt4_Transit_Func. + + - Declare new type `GXV_StateTable_GlyphOffsetCPtr'. + - Update the type of the 3rd argument to pass + GXV_StateTable_GlyphOffsetDesc data to the function prototyped + as GXV_StateTable_Entry_Validate_Func, from + GXV_StateTable_GlyphOffsetDesc to GXV_StateTable_GlyphOffsetCPtr. + + - Declare new type `GXV_XStateTable_GlyphOffsetCPtr'. + - Update the type of the 3rd argument to pass + GXV_XStateTable_GlyphOffsetDesc data to the function prototyped + as GXV_XStateTable_Entry_Validate_Func, + from GXV_XStateTable_GlyphOffsetDesc + to GXV_XStateTable_GlyphOffsetCPtr. + + * src/gxvalid/gxvcommn.c (gxv_LookupTable_fmt0_validate, + gxv_XClassTable_lookupval_validate, + gxv_XClassTable_lookupfmt4_transit): + Update from GXV_LookupValueDesc to GXV_LookupValueCPtr. + + * src/gxvalid/gxvbsln.c (gxv_bsln_LookupValue_validate, + gxv_bsln_LookupFmt4_transit): Ditto. + + * src/gxvalid/gxvjust.c + (gxv_just_pcTable_LookupValue_entry_validate, + gxv_just_classTable_entry_validate, + gxv_just_wdcTable_LookupValue_validate): Ditto. + + * src/gxvalid/gxvkern.c + (gxv_kern_subtable_fmt1_entry_validate): Ditto. + + * src/gxvalid/gxvlcar.c (gxv_lcar_LookupValue_validate, + gxv_lcar_LookupFmt4_transit): Ditto. + + * src/gxvalid/gxvopbd.c (gxv_opbd_LookupValue_validate, + gxv_opbd_LookupFmt4_transit): Ditto. + + * src/gxvalid/gxvprop.c (gxv_prop_LookupValue_validate, + gxv_prop_LookupFmt4_transit): Ditto. + + * src/gxvalid/gxvmort4.c + (gxv_mort_subtable_type4_lookupval_validate): Ditto. + + * src/gxvalid/gxvmort0.c + (gxv_mort_subtable_type0_entry_validate): Update + from GXV_StateTable_GlyphOffsetDesc + to GXV_StateTable_GlyphOffsetCPtr. + + * src/gxvalid/gxvmort1.c + (gxv_mort_subtable_type1_entry_validate): Ditto. + + * src/gxvalid/gxvmort2.c + (gxv_mort_subtable_type2_entry_validate): Ditto. + + * src/gxvalid/gxvmort5.c + (gxv_mort_subtable_type5_entry_validate): Ditto. + + * src/gxvalid/gxvmorx2.c + (gxv_morx_subtable_type2_entry_validate): Ditto. + + * src/gxvalid/gxvmorx5.c + (gxv_morx_subtable_type5_entry_validate): Ditto. + + * src/gxvalid/gxvmorx1.c + (gxv_morx_subtable_type1_entry_validate): Ditto. + (gxv_morx_subtable_type1_LookupValue_validate, + gxv_morx_subtable_type1_LookupFmt4_transit): + Update from GXV_LookupValueDesc to GXV_LookupValueCPtr. + + * src/gxvalid/gxvmorx0.c + (gxv_morx_subtable_type0_entry_validate): Update + from GXV_XStateTable_GlyphOffsetDesc + to GXV_XStateTable_GlyphOffsetCPtr. + +2009-07-29 Fabrice Bellet + + Fix Redhat bugzilla #513582 and Savannah bug #26849. + + * src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP) : Fix + aliasing bug. + +2009-07-19 Werner Lemberg + + Document recent library changes. + + * docs/CHANGES: Do it. + +2009-07-17 Werner Lemberg + + Fix Savannah bug #23786. + + * src/truetype/ttobjs.c (tt_size_init_bytecode): Don't reset x_ppem + and y_ppem. Otherwise the `*_CVT_Stretched' functions in ttinterp.c + get never called. + An anonymous guy suggested this change on Savannah, and it seems to + be the right solution. + +2009-07-15 Werner Lemberg + + * docs/release: Updated. + +2009-07-15 Werner Lemberg + + README.CVS -> README.git + + * README.CVS: Renamed to... + * README.git: This. + Updated. + +2009-07-15 suzuki toshiya + + Borland C++ compiler patch proposed by Mirco Babin. + http://lists.gnu.org/archive/html/freetype/2009-07/msg00016.html. + + * builds/exports.mk: Delete unused flags, CCexe_{CFLAGS,LDFLAGS}. + Fix APINAMES_C and APINAMES_EXE pathnames to reflect the platform + specific pathname syntax. + * builds/compiler/bcc.mk: Remove unused flag, CCexe_LDFLAGS. + Define TE = `-e' separately (bcc32 cannot specify the pathname of + binary executable by T = `-o'). + Extend the large page size in linking freetype.lib. + Add extra CLEAN target to delete bcc specific temporary files. + * builds/compiler/bcc-dev.mk: Ditto. + +2009-07-14 Werner Lemberg + + Fix Savannah bug #27026. + + * builds/win32/vc2005/freetype.sln: Use correct version number. + +2009-07-12 suzuki toshiya + + Add a script to check the undefined and unused trace macros. + + * src/tools/chktrcmp.py: A script to check trace_XXXX macros + that are used in C source but undefined in fttrace.h, or + defined in fttrace.h but unused in C sources. See + http://lists.gnu.org/archive/html/freetype-devel/2009-07/msg00013.html. + * docs/DEBUG: Mention on chktrcmp.py. + * docs/release: Ditto. + +2009-07-09 Werner Lemberg + + [ftraster] Make it compile again with -D_STANDALONE_. + + * src/raster/ftraster.c [_STANDALONE_]: Define + FT_CONFIG_STANDARD_LIBRARY_H. + Include `string.h'. + Don't include `rastpic.h'. + Define FT_DEFINE_RASTER_FUNCS. + +2009-07-09 suzuki toshiya + + smooth: Check glyph size by width/height, instead of pitch/height. + Suggested by der Mouse . + + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Improve + the check for too large glyph. Replace the pair of `pitch' and + `height' by the pair of `width' and `height'. `pitch' cannot + be greater than `height'. The required is checking the product + `pitch' * `height' <= FT_ULONG_MAX, but we use cheap checks for + the realistic case only. + +2009-07-09 suzuki toshiya + + Register 2 missing trace components, t1afm and ttbdf. + + * include/freetype/internal/fttrace.h: Add FT_TRACE_DEF( t1afm ) + and FT_TRACE_DEF( ttbdf ). See + http://lists.gnu.org/archive/html/freetype-devel/2009-07/msg00013.html + +2009-07-09 suzuki toshiya + + Register a trace component for ftgloadr.c. + + * include/freetype/internal/fttrace.h: Add FT_TRACE_DEF( gloader ). + The macro `trace_gloader' was already used in the initial version + on 2002-02-24. + +2009-07-08 suzuki toshiya + + Prevent the overflows by a glyph with too many points or contours. + The bug is reported by Boris Letocha . See + http://lists.gnu.org/archive/html/freetype-devel/2009-06/msg00031.html + http://lists.gnu.org/archive/html/freetype-devel/2009-07/msg00002.html + + * include/freetype/ftimage.h (FT_OUTLINE_CONTOURS_MAX, + FT_OUTLINE_POINTS_MAX): New macros to declare the maximum + values of FT_Outline.{n_contours,n_points}. + * src/base/ftgloadr.c (FT_GlyphLoader_CheckPoints): Check the + total numbers of points and contours cause no overflows in + FT_Outline.{n_contours,n_points}. + + * include/freetype/internal/ftgloadr.h (FT_GLYPHLOADER_CHECK_P, + FT_GLYPHLOADER_CHECK_C): Compare the numbers of points and + contours as unsigned long number, instead of signed int, to + prevent the overflows on 16-bit systems. + +2009-07-05 Bram Tassyns + + Improve compatibility to Acroread. + This fixes Savannah bug #26944. + + * src/cff/cffload.c (cff_charset_compute_cids): For multiple GID to + single CID mappings, make the lowest value win. + +2009-06-28 suzuki toshiya + + ftpatent: Fix a bug by wrong usage of service->table_info(). + http://lists.gnu.org/archive/html/freetype-devel/2008-12/msg00039.html + + * include/freetype/internal/services/svsfnt.h: Extend + FT_SFNT_TableInfoFunc() to take new argument to obtain the offset + to the specified table. + * src/sfnt/sfdriver.c (sfnt_table_info): Extend to return the + table-offset to the caller function. + * src/base/ftpatent.c (_tt_check_patents_in_table): Use new + service->table_info(). + * src/base/ftobjs.c (FT_Sfnt_Table_Info): Synchronize to new + service->table_info(). + +2009-06-28 Werner Lemberg + + [psaux, cff] Protect against nested `seac' calls. + + * include/freetype/internal/psaux.h (T1_Decoder), src/cff/cffgload.h + (CFF_Decoder): Add `seac' boolean variable. + + * src/cff/cffgload.c (cff_operator_seac), src/psaux/t1decode.c + (t1operator_seac): Use it. + +2009-06-28 Werner Lemberg + + Thinko. + + * src/psaux/t1decode.c (t1operator_seac) + [FT_CONFIG_OPTION_INCREMENTAL]: Test for existence of incremental + interface. + +2009-06-28 Werner Lemberg + + * devel/ftoption.h [FT_CONFIG_OPTION_INCREMENTAL]: Define. + +2009-06-27 suzuki toshiya + + Add tools to preprocess the source files for AtariST PureC. + + * builds/atari/deflinejoiner.awk: New file to filter C source files + for broken C preprocessor of PureC compiler. + + * builds/atari/gen-purec-patch.sh: New file to generate a patch set + for PureC, by using deflinejoiner.awk. + +2009-06-27 suzuki toshiya + + Keep existing modules.cfg in the building tree. + + * configure: If `configure' is executed outside of the source tree, + an existing `modules.cfg' file in the build directory should be + kept, not overwritten by the version in the source tree. + +2009-06-27 suzuki toshiya + + Filter --srcdir= option before invoking builds/unix/configure. + + * configure: If builds/unix/configure is invoked with --srcdir + option, the option should take `builds/unix' directory instead of + the top source directory. Thus the configure script in the top + directory should modify the --srcdir= option if + `builds/unix/configure' is invoked. + +2009-06-27 suzuki toshiya + + Improve configure.raw for cross-building on exe-suffixed systems. + + * builds/unix/configure.raw: Fix a bug in sed script to extract + native suffix for binary executables, patch by Peter Breitenlohner. + http://lists.gnu.org/archive/html/freetype-devel/2009-04/msg00036.html + +2009-06-26 Werner Lemberg + + [truetype] Remove TT_SubGlyphRec. + + * src/truetype/ttobjs.h (TT_SubGlyphRec): Removed, unused. + +2009-06-26 Werner Lemberg + + * */*: For warning messages, replace FT_ERROR with FT_TRACE0. + + FT_ERROR is now used only if a function produces a non-zero `error' + value. + + Formatting, improving and harmonizing debug strings. + +2009-06-25 Werner Lemberg + + Provide version information better. + + * src/base/ftinit.c (FT_Init_FreeType): Don't set version here + but... + * src/base/ftobjs.c (FT_New_Library): Here. + +2009-06-22 Werner Lemberg + + Use 16.16 format while parsing Type 1 charstrings. + This fixes Savannah bug #26867. + + Previously, only integers have been used which can lead to serious + rounding errors. + + However, fractional values are only used internally; after the + charstrings (of either Type 1 or 2) have been processed, the + resulting coordinates get rounded to integers currently -- before + applying scaling. This should be fixed; at the same time a new load + flag should be introduced, to be used in combination with + FT_LOAD_NO_SCALE, which indicates that font units are returned in + 16.16 format. Similarly, the incremental interface should be + extended to allow fractional values for metrics. + + * include/freetype/internal/psaux.h (T1_BuilderRec): Remove `shift' + field. + * include/freetype/internal/pshints.h (T1_Hints_SetStemFunc, + T1_Hints_SetStem3Func): Use FT_Fixed for coordinates. + + * src/psaux/psobjs.c: Include FT_INTERNAL_CALC_H. + (t1_build_add_point): Always convert fixed to integer. + * src/psaux/t1decode.c (t1_decoder_parse_charstrings): + Use 16.16 format everywhere (except for large integers followed by a + `div'). + [CAN_HANDLE_NON_INTEGRAL_T1_OPERANDS]: Remove #ifdef and activate + code uncoditionally. + Add support for random numbers and update remaining code + accordingly; this should work now. + (t1_operator_seac): Updated. + * src/psaux/pshrec.c: Include FT_INTERNAL_CALC_H. + (ps_hints_t1stem3, t1_hints_stem): Updated. + + * src/cid/cidgload.c: Include FT_INTERNAL_CALC_H. + (cid_load_glyph) [FT_CONFIG_OPTION_INCREMENTAL], + (cid_face_compute_max_advance, cid_slot_load_glyph): Updated. + + * src/type1/t1gload.c (T1_Parse_Glyph_And_Get_Char_String) + [FT_CONFIG_OPTION_INCREMENTAL], (T1_Get_Advances, T1_Load_Glyph): + Updated. + * src/type1/t1load.c: Include FT_INTERNAL_CALC_H. + * src/type1/t1objs.c (T1_Face_Init): Updated. + +2009-06-21 Werner Lemberg + + * src/pshinter/pshrec.c: Use PSH_Err_Ok. + +2009-06-21 Werner Lemberg + + Code beautification. + + * src/type1/t1load.c (FT_INT_TO_FIXED): Removed. + Replace everywhere with INT_TO_FIXED. + (FT_FIXED_TO_INT): Move to ... + * include/freetype/internal/ftcalc.h (FIXED_TO_INT): Here. + Update all users. + +2009-06-20 Werner Lemberg + + Remove unused variables. + + * include/freetype/internal/psaux.h (T1_BuilderRec), + src/cff/cffgload.h (CFF_Builder): Remove `last'. + Update all users. + +2009-06-20 Werner Lemberg + + [psaux] Check large integers while parsing charstrings. + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings): Large + integers must be followed by a `div' operator. + +2009-06-20 Werner Lemberg + + [cff] Revert last change. + + * src/cff/cffgload.c (cff_decoder_parse_charstrings): Do it. + Next time, don't confuse Type 2 charstring opcodes with TOP DICT + values... + +2009-06-20 Werner Lemberg + + * src/autofit/aflatin.c (af_latin_metrics_check_digits): Fix + compiler warning. + +2009-06-20 Werner Lemberg + + * builds/compiler/gcc.mk (CFLAGS): Use -O3, not -O6. + +2009-06-19 Werner Lemberg + + [cff] Fix handling of reserved byte 0xFF. + + * src/cff/cffgload.c (cff_decoder_parse_charstrings): Abort if byte + 0xFF is encountered. + +2009-06-19 Werner Lemberg + + Improve debug messages for Type1 charstrings. + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings): Emit newlines + after instructions. + Prettify output. + +2009-06-19 Werner Lemberg + + More ftgray fixes for FT_STATIC_RASTER. + Problems reported by suyu@cooee.cn. + + * src/smooth/ftgrays.c (gray_move_to, gray_raster_render): Use + RAS_VAR. + +2009-06-18 Werner Lemberg + + * docs/CHANGES: Updated. + +2009-06-18 Werner Lemberg + + Fix B/W rasterization of subglyphs with different drop-out modes. + + Normally, the SCANMODE instruction (if present) to set the drop-out + mode in a TrueType font is located in the `prep' table only and thus + valid for all glyphs. However, there are fonts like `pala.ttf' + which additionally contain this instruction in the hinting code of + some glyphs (but not all). As a result it can happen that a + composite glyph needs multiple drop-out modes for its subglyphs + since the rendering state gets reset for each subglyph. + + FreeType collects the hinted outlines from all subglyphs, then it + sends the data to the rasterizer. It also sends the drop-out mode + -- after hinting has been applied -- and here is the error: It sends + the drop-out mode of the last subglyph only; drop-out modes of all + other subglyphs are lost. + + This patch fixes the problem; it adds a second, alternative + mechanism to pass the drop-out mode: For each contour, the + rasterizer now checks the first `tags' array element. If bit 2 is + set, bits 5-7 contain the contour's drop-out mode, overriding the + global drop-out mode. + + * include/freetype/ftimage.h (FT_CURVE_TAG_HAS_SCANMODE): New macro. + + * src/truetype/ttgload.c (TT_Hint_Glyph): Store drop-out mode in + `tags[0]'. + + * src/raster/ftraster.c (Flow_Up, Overshoot_Top, Overshoot_Bottom): + Use bits 3-5 instead of 0-2. + (New_Profile): Set the drop-out mode in the profile's `flags' field. + (Decompose_Curve): Check `tags[0]' and set `dropOutControl' if + necessary. + (Vertical_Sweep_Drop, Horizontal_Sweep_Drop, + Horizontal_Gray_Sweep_Drop, Draw_Sweep): Use the profile's drop-out + mode. + +2009-06-16 Werner Lemberg + + Improve scan conversion rules 4 and 6. + + Two new constraints are introduced to better identify a `stub' -- a + concept which is only vaguely described in the OpenType + specification. The old code was too rigorous and suppressed more + pixel than it should. + + . The intersection of the two profiles with the scanline is less + than a half pixel. Code related to this was already present in + the sources but has been commented out. + + . The endpoint of the original contour forming a profile has a + distance (`overshoot') less than half a pixel to the scanline. + + Note that the two additional conditions fix almost all differences + to the Windows rasterizer, but some problematic cases remain. + + * src/raster/ftraster.c (Overshoot_Top, Overshoot_Bottom): New + macros for the `flags' field in the `TProfile' structure. + (IS_BOTTOM_OVERSHOOT, IS_TOP_OVERSHOOT): New macros. + (New_Profile, End_Profile): Pass overshoot flag as an argument and + set it accordingly. + Update callers. + (Vertical_Sweep_Drop, Horizontal_Sweep_Drop): Implement the two new + constraints. + +2009-06-11 Werner Lemberg + + Increase precision for B/W rasterizer. + + * src/raster/ftraster.c (Set_High_Precision): Add two more bits to + the precision. This corrects rendering of some small glyphs, for + example, glyph `xi' in verdana.ttf at 13 ppem. Testing with ftbench + on my GNU/Linux box I don't see a performance degradation. + +2009-06-08 Michael Zucchi + + Handle FT_STROKER_LINECAP_BUTT. + This fixes Savannah bug #26757. + + * src/base/ftstroke.c (ft_stroker_cap): Implement it. + +2009-06-07 Harald Fernengel + + Fix some potential out-of-memory crashes. + + * src/base/ftobjs.c (ft_glyphslot_done): Check `slot->internal'. + * src/base/ftstream.c (FT_Stream_ReleaseFrame): Check `stream'. + * src/truetype/ttinterp.c (TT_New_Context): Avoid double-free of + `exec' in case of failure. + +2009-06-07 Werner Lemberg + + Simplify math. + Suggested by Alexei Podtelezhnikov . + + * src/raster/ftraster.c (Vertical_Sweep_Drop, Horizontal_Sweep_Drop, + Horizontal_Gray_Sweep_Drop): Do it. + +2009-06-04 Werner Lemberg + + Preparation for fixing scan conversion rules 4 and 6. + + * src/raster/ftraster.c (TFlow): Replace enumeration with... + (Flow_Up): This macro. + (TProfile): Replace `flow' member with `flags' bit field. + Update all affected code. + +2009-05-29 James Cloos + + Enable autohinting for glyphs rotated by multiples of 90°. + + * src/base/ftobjs.c (FT_Load_Glyph): Alter check for permitted + matrices to allow rotations by multiples of 90°, not only unrotated, + possibly slanted matrices. + +2009-05-28 Werner Lemberg + + Remove compiler warning. + Reported by Krzysztof Kowalczyk . + + * src/autofit/aflatin2.c (af_latin2_hint_edges): Move declaration of + `n_edges' into `#if' block. + +2009-05-28 Werner Lemberg + + Make compilation work with FT_CONFIG_OPTION_USE_ZLIB not defined. + Reported by Krzysztof Kowalczyk . + + * src/pcf/pcfdrivr.c (PCF_Face_Init) [!FT_CONFIG_OPTION_USE_ZLIB]: + Make it work. + Simplify #ifdef logic. + +2009-05-22 Werner Lemberg + + Improve b/w rasterizer. + Problem reported by Krzysztof Kotlenga . + + * src/raster/raster.c (Vertical_Sweep_Drop, Horizontal_Sweep_Drop, + Horizontal_Gray_Sweep_Drop): For smart drop-out mode, if + intersections are equally distant relative to next pixel center, + select the left pixel, not the right one. + +2009-05-19 Werner Lemberg + + Fix Savannah bug #26600. + + * src/type42/t42parse.c (t42_load_keyword): Handle + T1_FIELD_LOCATION_FONT_EXTRA. + +2009-04-30 Werner Lemberg + + Document recent changes to ftview. + + * docs/CHANGES: Do it. + +2009-04-27 Werner Lemberg + + autohinter: Don't change digit widths if all widths are the same. + This fixes FreeDesktop bug #21197. + + * src/autofit/afglobal.c (AF_DIGIT): New macro. + (af_face_globals_compute_script_coverage): Mark ASCII digits in + `glyph_scripts' array. + (af_face_globals_get_metrics): Updated. + (af_face_globals_is_digit): New function. + * src/autofit/afglobal.h: Updated. + (AF_ScriptMetricsRec): Add `digits_have_same_width' flag. + + * src/autofit/aflatin.c: Include FT_ADVANCES_H. + (af_latin_metrics_check_digits): New function. + (af_latin_metrics_init): Use it. + * src/autofit/aflatin.h: Updated. + * src/autofit/afcjk.c (af_cjk_metrics_init): Updated. + + * src/autofit/aflatin2.c: Similar changes as with aflatin.c. + + * src/autofit/afloader.c (af_loader_load_g): Test digit width. + + * docs/CHANGES: Document it. + +2009-04-26 Werner Lemberg + + Make ftgrays compile with _STANDALONE_ and FT_STATIC_RASTER again. + Problems reported by suyu@cooee.cn. + + * src/smooth/ftgrays.c (FT_DEFINE_OUTLINE_FUNCS, + FT_DEFINE_RASTER_FUNCS) [_STANDALONE_]: Define. + [!_STANDALONE_]: Include ftspic.h only here. + (ras): Define/declare after definition of `TWorker'. + Use `RAS_VAR_' where necessary. + +2009-04-21 Karl Berry + + Fix AC_CHECK_FT2. + + * builds/unix/freetype2.m4: Only check PATH for freetype-config if + we did not already find it from a prefix option. + +2009-04-05 Oran Agra + + Add #error to modules and files that do not support PIC yet. + + When FT_CONFIG_OPTION_PIC is defined the following files will + create #error: + * src/bdf/bdfdrivr.h + * src/cache/ftcmanag.c + * src/cid/cidriver.h + * src/gxvalid/gxvmod.h + * src/gzip/ftgzip.c + * src/lzw/ftlzw.c + * src/otvalid/otvmod.h + * src/pcf/pcfdrivr.h + * src/pfr/pfrdrivr.h + * src/psaux/psauxmod.h + * src/type1/t1driver.h + * src/type42/t42drivr.h + * src/winfonts/winfnt.h + +2009-04-05 Oran Agra + + Position Independent Code (PIC) support in autofit module. + + * include/freetype/internal/autohint.h add macros to init + instances of FT_AutoHinter_ServiceRec. + + * src/autofit/afmodule.h declare autofit_module_class + using macros from ftmodapi.h, + when FT_CONFIG_OPTION_PIC is defined create and destroy + functions will be declared. + * src/autofit/afmodule.c when FT_CONFIG_OPTION_PIC is defined + af_autofitter_service and autofit_module_class structs + will have functions to init or create and destroy them + instead of being allocated in the global scope. + And macros will be used from afpic.h in order to access them. + + * src/autofit/aftypes.h add macros to init and declare + instances of AF_ScriptClassRec. + + * src/autofit/afcjk.h declare af_cjk_script_class + using macros from aftypes.h, + when FT_CONFIG_OPTION_PIC is defined init function will be declared. + * src/autofit/afcjk.c when FT_CONFIG_OPTION_PIC is defined + af_cjk_script_class struct will have function to init it instead of + being allocated in the global scope. + + * src/autofit/afdummy.h declare af_dummy_script_class + using macros from aftypes.h, + when FT_CONFIG_OPTION_PIC is defined init function will be declared. + * src/autofit/afdummy.c when FT_CONFIG_OPTION_PIC is defined + af_dummy_script_class struct will have function to init it instead of + being allocated in the global scope. + + * src/autofit/afindic.h declare af_indic_script_class + using macros from aftypes.h, + when FT_CONFIG_OPTION_PIC is defined init function will be declared. + * src/autofit/afindic.c when FT_CONFIG_OPTION_PIC is defined + af_indic_script_class struct will have function to init it instead of + being allocated in the global scope. + + * src/autofit/aflatin.h declare af_latin_script_class + using macros from aftypes.h, + when FT_CONFIG_OPTION_PIC is defined init function will be declared. + * src/autofit/aflatin.c when FT_CONFIG_OPTION_PIC is defined + af_latin_script_class struct will have function to init it instead of + being allocated in the global scope. + Change af_latin_blue_chars to be PIC-compatible by being a two + dimentional array rather than array of pointers. + + + * src/autofit/aflatin2.h declare af_latin2_script_class + using macros from aftypes.h, + when FT_CONFIG_OPTION_PIC is defined init function will be declared. + * src/autofit/aflatin2.c when FT_CONFIG_OPTION_PIC is defined + af_latin2_script_class struct will have function to init it instead of + being allocated in the global scope. + Change af_latin2_blue_chars to be PIC-compatible by being a two + dimentional array rather than array of pointers. + + * src/autofit/afglobal.c when FT_CONFIG_OPTION_PIC is defined + af_script_classes array initialization was moved to afpic.c and + is later refered using macros defeined in afpic.h. + + New Files: + * src/autofit/afpic.h declare struct to hold PIC globals for autofit + module and macros to access them. + * src/autofit/afpic.c implement functions to allocate, destroy and + initialize PIC globals for autofit module. + + * src/autofit/autofit.c add new file to build: afpic.c. + * src/autofit/jamfile add new files to FT2_MULTI build: afpic.c. + +2009-04-05 Oran Agra + + Position Independent Code (PIC) support in pshinter module. + + * include/freetype/internal/pshints.h add macros to init + instances of PSHinter_Interface. + + * src/pshinter/pshmod.h declare pshinter_module_class + using macros from ftmodapi.h, + when FT_CONFIG_OPTION_PIC is defined create and destroy + functions will be declared. + * src/pshinter/pshmod.c when FT_CONFIG_OPTION_PIC is defined + pshinter_interface and pshinter_module_class structs + will have functions to init or create and destroy them + instead of being allocated in the global scope. + And macros will be used from pshpic.h in order to access them. + + New Files: + * src/pshinter/pshpic.h declare struct to hold PIC globals for pshinter + module and macros to access them. + * src/pshinter/pshpic.c implement functions to allocate, destroy and + initialize PIC globals for pshinter module. + + * src/pshinter/pshinter.c add new file to build: pshpic.c. + * src/pshinter/jamfile add new files to FT2_MULTI build: pshpic.c. + +2009-04-05 Oran Agra + + Position Independent Code (PIC) support in psnames module. + + * include/freetype/internal/services/svpscmap.h add macros to init + instances of FT_Service_PsCMapsRec. + + * src/psnames/psmodule.h declare psnames_module_class + using macros from ftmodapi.h, + when FT_CONFIG_OPTION_PIC is defined create and destroy + functions will be declared. + * src/psnames/psmodule.c when FT_CONFIG_OPTION_PIC is defined + pscmaps_interface and pscmaps_services structs + and psnames_module_class array + will have functions to init or create and destroy them + instead of being allocated in the global scope. + And macros will be used from pspic.h in order to access them. + + New Files: + * src/psnames/pspic.h declare struct to hold PIC globals for psnames + module and macros to access them. + * src/psnames/pspic.c implement functions to allocate, destroy and + initialize PIC globals for psnames module. + + * src/psnames/psnames.c add new file to build: pspic.c. + * src/psnames/jamfile add new files to FT2_MULTI build: pspic.c. + +2009-04-05 Oran Agra + + Position Independent Code (PIC) support in raster renderer. + + * src/raster/ftrend1.h declare ft_raster1_renderer_class + and ft_raster5_renderer_class + using macros from ftrender.h, + when FT_CONFIG_OPTION_PIC is defined create and destroy + functions will be declared. + * src/smooth/ftrend1.c when FT_CONFIG_OPTION_PIC is defined + ft_raster1_renderer_class and ft_raster5_renderer_class structs + will have functions to init or create and destroy them + instead of being allocated in the global scope. + Macros will be used from rastpic.h in order to access + ft_standard_raster from the pic_container (allocated in ftraster.c). + In ft_raster1_render when PIC is enabled, the last letter of + module_name is used to verfy the renderer class rather than the + class pointer. + + * src/raster/ftraster.c when FT_CONFIG_OPTION_PIC is defined + ft_standard_raster struct will have function to init it + instead of being allocated in the global scope. + + New Files: + * src/raster/rastpic.h declare struct to hold PIC globals for raster + renderer and macros to access them. + * src/raster/rastpic.c implement functions to allocate, destroy and + initialize PIC globals for raster renderer. + + * src/raster/raster.c add new file to build: rastpic.c. + * src/raster/jamfile add new files to FT2_MULTI build: rastpic.c. + +2009-04-05 Oran Agra + + Position Independent Code (PIC) support in smooth renderer. + + * src/smooth/ftsmooth.h declare ft_smooth_renderer_class, + ft_smooth_lcd_renderer_class and ft_smooth_lcd_v_renderer_class + using macros from ftrender.h, + when FT_CONFIG_OPTION_PIC is defined create and destroy + functions will be declared. + * src/smooth/ftsmooth.c when FT_CONFIG_OPTION_PIC is defined + the following structs: + ft_smooth_renderer_class, ft_smooth_lcd_renderer_class + and ft_smooth_lcd_v_renderer_class + will have functions to init or create and destroy them + instead of being allocated in the global scope. + And macros will be used from ftspic.h in order to access + ft_grays_raster from the pic_container (allocated in ftgrays.c). + + * src/smooth/ftgrays.h include FT_CONFIG_CONFIG_H + * src/smooth/ftgrays.c when FT_CONFIG_OPTION_PIC is NOT defined + func_interface was moved from gray_convert_glyph_inner function + to the global scope. + When FT_CONFIG_OPTION_PIC is defined + func_interface and ft_grays_raster structs + will have functions to init them + instead of being allocated in the global scope. + And func_interface will be allocated on the stack of + gray_convert_glyph_inner. + + New Files: + * src/smooth/ftspic.h declare struct to hold PIC globals for smooth + renderer and macros to access them. + * src/smooth/ftspic.c implement functions to allocate, destroy and + initialize PIC globals for smooth renderer. + + * src/smooth/smooth.c add new file to build: ftspic.c. + * src/smooth/jamfile add new files to FT2_MULTI build: ftspic.c. + +2009-04-05 Oran Agra + + Position Independent Code (PIC) support in cff driver. + + * include/freetype/internal/services/svcid.h add macros to init + instances of FT_Service_CIDRec. + * include/freetype/internal/services/svpsinfo.h add macros to init + instances of FT_Service_PsInfoRec. + + * src/cff/cffcmap.h declare cff_cmap_encoding_class_rec + and cff_cmap_unicode_class_rec using macros from + ftobjs.h, when FT_CONFIG_OPTION_PIC is defined create and destroy + functions will be declared. + * src/cff/cffcmap.c when FT_CONFIG_OPTION_PIC is defined + the following structs: + cff_cmap_encoding_class_rec and cff_cmap_unicode_class_rec + will have functions to init or create and destroy them + instead of being allocated in the global scope. + + * src/cff/cffdrivr.h declare cff_driver_class using macros from + ftdriver.h, when FT_CONFIG_OPTION_PIC is defined create and destroy + functions will be declared. + * src/cff/cffdrivr.c when FT_CONFIG_OPTION_PIC is defined + the following structs: + cff_service_glyph_dict, cff_service_ps_info, cff_service_ps_name + cff_service_get_cmap_info, cff_service_cid_info, cff_driver_class, + and cff_services array + will have functions to init or create and destroy them + instead of being allocated in the global scope. + And macros will be used from cffpic.h in order to access them + from the pic_container. + Use macros from cffpic.h in order to access the + structs allocated in cffcmap.c + + * src/cff/cffobjs.c Use macros from cffpic.h in order to access the + structs allocated in cffcmap.c + + * src/cff/parser.c when FT_CONFIG_OPTION_PIC is defined + implement functions to create and destroy cff_field_handlers array + instead of being allocated in the global scope. + And macros will be used from cffpic.h in order to access it + from the pic_container. + + New Files: + * src/cff/cffpic.h declare struct to hold PIC globals for cff + driver and macros to access them. + * src/cff/cffpic.c implement functions to allocate, destroy and + initialize PIC globals for cff driver. + + * src/cff/cff.c add new file to build: cffpic.c. + * src/cff/jamfile add new files to FT2_MULTI build: cffpic.c. + +2009-04-05 Oran Agra + + Position Independent Code (PIC) support in sfnt driver. + + * include/freetype/internal/services/svbdf.h add macros to init + instances of FT_Service_BDFRec. + * include/freetype/internal/services/svgldict.h add macros to init + instances of FT_Service_GlyphDictRec. + * include/freetype/internal/services/svpostnm.h add macros to init + instances of FT_Service_PsFontNameRec. + * include/freetype/internal/services/svsfnt.h add macros to init + instances of FT_Service_SFNT_TableRec. + * include/freetype/internal/services/svttcmap.h add macros to init + instances of FT_Service_TTCMapsRec. + * include/freetype/internal/sfnt.h add macros to init + instances of SFNT_Interface. + + * src/sfnt/sfdriver.h declare sfnt_module_class using macros from + ftmodapi.h, when FT_CONFIG_OPTION_PIC is defined create and destroy + functions will be declared. + * src/sfnt/sfdriver.c when FT_CONFIG_OPTION_PIC is defined + the following structs: + sfnt_service_sfnt_table, sfnt_service_glyph_dict, sfnt_service_ps_name + tt_service_get_cmap_info, sfnt_service_bdf, sfnt_interface, + sfnt_module_class, and sfnt_services array + will have functions to init or create and destroy them + instead of being allocated in the global scope. + And macros will be used from sfntpic.h in order to access them + from the pic_container. + + * src/sfnt/ttcmap.h add macros to init + instances of TT_CMap_ClassRec. + * src/sfnt/ttcmap.c when FT_CONFIG_OPTION_PIC is defined + the following structs: + tt_cmap0_class_rec, tt_cmap2_class_rec, tt_cmap4_class_rec + tt_cmap6_class_rec, tt_cmap8_class_rec, tt_cmap10_class_rec, + tt_cmap12_class_rec, tt_cmap14_class_rec and tt_cmap_classes array + will have functions to init or create and destroy them + instead of being allocated in the global scope. + And macros will be used from sfntpic.h in order to access them + from the pic_container. + The content of tt_cmap_classes is now described in the + new file 'ttcmapc.h'. + + New Files: + * src/sfnt/sfntpic.h declare struct to hold PIC globals for sfnt + driver and macros to access them. + * src/sfnt/sfntpic.c implement functions to allocate, destroy and + initialize PIC globals for sfnt driver. + * src/sfnt/ttcmapc.h describing the content of + tt_cmap_classes allocated in ttcmap.c + + * src/sfnt/sfnt.c add new file to build: sfntpic.c. + * src/sfnt/jamfile add new files to FT2_MULTI build: sfntpic.c. + +2009-04-05 Oran Agra + + Position Independent Code (PIC) support in truetype driver. + + * include/freetype/internal/services/svmm.h add macros to init + instances of FT_Service_MultiMastersRec. + * include/freetype/internal/services/svttglyf.h add macros to init + instances of FT_Service_TTGlyfRec. + + * src/truetype/ttdriver.h declare tt_driver_class using macros from + ftdriver.h, when FT_CONFIG_OPTION_PIC is defined create and destroy + functions will be declared. + * src/truetype/ttdriver.c when FT_CONFIG_OPTION_PIC is defined + the following structs: + tt_service_gx_multi_masters, tt_service_truetype_glyf, tt_driver_class + and tt_services array, + will have functions to init or create and destroy them + instead of being allocated in the global scope. + And macros will be used from ttpic.h in order to access them + from the pic_container. + * src/truetype/ttobjs.c change trick_names array to be + PIC-compatible by being a two dimentional array rather than array + of pointers. + + New Files: + * src/truetype/ttpic.h declare struct to hold PIC globals for truetype + driver and macros to access them. + * src/truetype/ttpic.c implement functions to allocate, destroy and + initialize PIC globals for truetype driver. + + * src/truetype/truetype.c add new file to build: ttpic.c. + * src/truetype/jamfile add new files to FT2_MULTI build: ttpic.c. + +2009-04-05 Oran Agra + + Position Independent Code (PIC) support and infrastructure in base. + + * include/freetype/config/ftoption.h add FT_CONFIG_OPTION_PIC + * include/freetype/internal/ftobjs.h Add pic_container member to + FT_LibraryRec. + Add macros to declare and init instances of FT_CMap_ClassRec. + Add macros to init instances of FT_Outline_Funcs and FT_Raster_Funcs. + Add macros to declare, allocate and initialize modules + (FT_Module_Class). + Add macros to declare, allocate and initialize renderers + (FT_Renderer_Class). + Add macro to init instances of FT_Glyph_Class. + Add macros to declare, allocate and initialize drivers + (FT_Driver_ClassRec). + * include/freetype/internal/ftpic.h new file to declare the + FT_PIC_Container struct and the functions to allocate and detroy it. + * include/freetype/internal/ftserv.h add macros to allocate and + destory arrays of FT_ServiceDescRec. + * include/freetype/internal/internal.h define macro to include + ftpic.h. + + New Files: + * src/base/ftpic.c implement functions to allocate and destory the + global pic_container. + * src/base/basepic.h declare struct to hold PIC globals for base and + macros to access them. + * src/base/basepic.c implement functions to allocate, destroy and + initialize PIC globals for base. + + * src/base/ftinit.c when FT_CONFIG_OPTION_PIC is defined implement + functions that allocate and destroy ft_default_modules according to + FT_CONFIG_MODULES_H in the pic_container instead of the global scope + and use macro from basepic.h to access it. + * src/base/ftobjs.c add calls to the functions that allocate and + destroy the global pic_container when the library is created and + destroyed. + + * src/base/jamfile add new files to FT2_MULTI build: + ftpic.c and basepic.c. + * src/base/ftbase.c add new files to build: + ftpic.c and basepic.c. + + * src/base/ftglyph.c when FT_CONFIG_OPTION_PIC is defined + ft_bitmap_glyph_class and ft_outline_glyph_class will be allocated + in the pic_container instead of the global scope and use macros from + basepic.h to access them. + * src/base/ftbbox.c allocate bbox_interface stract on the stack + instead of the global scope when FT_CONFIG_OPTION_PIC is defined. + * src/base/ftstroke.c access ft_outline_glyph_class allocated in + ftglyph.c via macros from basepic.h + +2009-04-05 Oran Agra + + Preparing changes in cff parser later needed for PIC version. + + * src/cff/cffload.c, src/cff/cffload.h, src/cff/cffobjs.c, + src/cff/cffparse.c, src/cff/cffparse.h: Add library pointer to + 'CFF_ParserRec' set by `cff_parser_init'. + Route library pointer from 'cff_face_init' to 'cff_subfont_load' + for `cff_parser_init'. + + * src/cff/cffparse.c (CFF_Field_Handler): Move it to... + * src/cff/cffparse.h: This file, to be used by other C files. + +2009-04-05 Oran Agra + + Minor change in ftstroke.c. + + * src/base/ftstroke.c (FT_StrokerRec): Replace `memory' member with + `library' needed for PIC version. + Update all callers. + +2009-04-04 Werner Lemberg + + ftnames.c -> ftsnames.c + + * src/base/ftnames.c: Rename to... + * src/base/ftsnames.c: This. + * src/base/Jamfile, src/base/rules.mk, src/base/ftbase.c: Updated. + +2009-04-04 Werner Lemberg + + Add support for cmap type 13. + + * devel/ftoption.h, include/freetype/config/ftoption.h + (TT_CONFIG_CMAP_FORMAT_13): New macro. + + * src/sfnt/ttcmap.c (TT_CMap13Rec, tt_cmap13_init, + tt_cmap13_validate, tt_cmap13_char_index, tt_cmap13_char_next, + tt_cmap13_get_info, tt_cmap13_char_map_def_binary, + tt_cmap14_class_rec): New functions and structures for cmap 13 + support. + (tt_cmap_classes): Register tt_cmap13_class_rec. + + * docs/CHANGES: Mention cmap 13 support. + +2009-04-01 Werner Lemberg + + Ignore empty contours in CFF glyphs. + + Problem reported by Albert Astals Cid . + + * src/cff/cffgload.c (cff_builder_close_contour): Synchronize with + t1_builder_close_contour. + +2009-03-21 Werner Lemberg + + Another redundant header inclusion. + + * src/truetype/ttgxvar.c: Fix Ghostscript Coverity issue #4041. + +2009-03-21 Werner Lemberg + + Remove redundant header inclusions. + + This covers many Ghostscript Coverity issues. + + * src/*: Do it. + +2009-03-21 Werner Lemberg + + Fix Ghostscript Coverity issue #3904. + + * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Protect against + invalid values of `runcnt'. + +2009-03-20 Werner Lemberg + + Fix `make multi' run. + + * src/smooth/ftsmooth.h: Include FT_INTERNAL_DEBUG_H. + +2009-03-20 Werner Lemberg + + Fix Savannah bug #25923. + + * src/cache/ftccmap.c (FTC_CMAP_HASH): Fix typo. + +2009-03-20 Werner Lemberg + + Protect against too large glyphs. + + Problem reported by Tavis Ormandy . + + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Don't allow + `pitch' or `height' to be larger than 0xFFFF. + +2009-03-20 Werner Lemberg + Tavis Ormandy + + Fix validation for various cmap table formats. + + * src/sfnt/ttcmap.c (tt_cmap8_validate, tt_cmap10_validate, + tt_cmap12_validate): Check `length' correctly. + (tt_cmap_14_validate): Check `length' and `numMappings' correctly. + +2009-03-20 Werner Lemberg + + Protect against malformed compressed data. + + * src/lzw/ftzopen.c (ft_lzwstate_io): Test whether `state->prefix' is + zero. + +2009-03-20 Werner Lemberg + + Protect against invalid SID values in CFFs. + + Problem reported by Tavis Ormandy . + + * src/cff/cffload.c (cff_charset_load): Reject SID values larger + than 64999. + +2009-03-19 Vincent Richomme + + Update WinCE Visual C project files. + + * builds/wince/vc2005-ce/freetype.vcproj, + builds/wince/vc2008-ce/freetype.vcproj: Add missing base extension + files. + +2009-03-19 Werner Lemberg + + Remove unused Win32 code. + + * builds/wince/ftdebug.c: Remove code guarded with `!_WIN32_WCE'. + Since Win32 is handled separately this is no longer needed. + +2009-03-19 Vincent Richomme + + Make `gzip' module compile on WinCE. + + * src/gzip/zconf.h [_WIN32_WCE]: Define NO_ERRNO_H. + +2009-03-19 Werner Lemberg + + Remove unused WinCE code. + + * builds/win32/ftdebug.c: Remove code guarded with `_WIN32_WCE'. + Since WinCE is handled separately this is no longer needed. + +2009-03-16 Werner Lemberg + + docmaker: Don't ignore single-line code blocks. + + * src/tools/docmaker/content.py (DocBlock::_init__): Fix change from + 2009-01-31. + +2009-03-15 Steve Langasek + + Use __asm__ for declaring assembly instead of asm. + + * builds/unix/ftconfig.in (FT_MulFix_arm): Use __asm__ instead of + asm on arm, fixing a build failure on armel with -pedantic. + +2009-03-14 Werner Lemberg + + Fix valgrind warning. + + * src/sfnt/ttsbit0.c (tt_sbit_decoder_load_bit_aligned): Don't read + past the end of the frame. + +2009-03-12 Werner Lemberg + + * Version 2.3.9 released. + ========================= + + + Tag sources with `VER-2-3-9'. + +2009-03-12 Werner Lemberg + + * builds/unix/freetype2.in: Move @FT2_EXTRA_LIBS@ to `Libs.private'. + +2009-03-12 Werner Lemberg + + Fix some FreeType Coverity issues as reported for Ghostscript. + + * src/base/ftobjs.c (FT_New_Face, FT_New_Memory_Face): Initialize + `args.stream' (#3874, #3875). + (open_face_PS_from_sfnt_stream): Improve error management (#3786). + * src/base/ftmm.c (ft_face_get_mm_service): Fix check of `aservice' + (#3870). + * src/base/ftstroke.c (ft_stroke_border_get_counts): Remove dead + code (#3790). + * src/base/ftrfork.c (raccess_guess_apple_generic): Check error + value of `FT_Stream_Skip' (#3784). + + * src/type1/t1gload.c (T1_Load_Glyph): Check `size' before accessing + it (#3872) + + * src/pcf/pcfdrivr.c (PCF_Glyph_Load): Check `face' before accessing + it (#3871). + * src/pcf/pcfread.c (pcf_get_metrics): Handle return value of + `pcf_get_metric' (#3789, #3782). + (pcf_get_properties): Use FT_STREAM_SKIP (#3783). + + * src/cache/ftcmanag.c (FTC_Manager_RegisterCache): Fix check of + `acache' (#3797) + + * src/cff/cffdrivr.c (cff_ps_get_font_info): Fix check of `cff' + (#3796). + * src/cff/cffgload.c (cff_decoder_prepare): Check `size' (#3795). + * src/cff/cffload.c (cff_index_get_pointers): Add comment (#3794). + + * src/bdf/bdflib.c (_bdf_add_property): Check `fp->value.atom' + (#3793). + (_bdf_parse_start): Add comment (#3792). + + * src/raster/ftraster.c (Finalize_Profile_Table): Check + `ras.fProfile' (#3791). + + * src/sfnt/ttsbit.c (Load_SBit_Image): Use FT_STREAM_SKIP (#3785). + + * src/gzip/ftgzip.c (ft_gzip_get_uncompressed_size): Properly ignore + seek error (#3781). + +2009-03-11 Michael Toftdal + + Extend CID service functions to handle CID-keyed CFFs as CID fonts. + + * include/freetype/ftcid.h (FT_Get_CID_Is_Internally_CID_keyed, + FT_Get_CID_From_Glyph_Index): New functions. + + * include/freetype/internal/services/svcid.h + (FT_CID_GetIsInternallyCIDKeyedFunc, + FT_CID_GetCIDFromGlyphIndexFunc): New function typedefs. + (CID Service): Use them. + + * src/base/ftcid.c: Include FT_CID_H. + (FT_Get_CID_Is_Internally_CID_keyed, FT_Get_CID_From_Glyph_Index): + New functions. + + * src/cff/cffdrivr.c (cff_get_is_cid, cff_get_cid_from_glyph_index): + New functions. + (cff_service_cid_info): Add them. + * src/cff/cffload.c (cff_font_load): Don't free `font->charset.sids' + -- it is needed for access as a CID-keyed font. It gets deleted + later on. + + * src/cid/cidriver.c (cid_get_is_cid, cid_get_cid_from_glyph_index): + New functions. + (cid_service_cid_info): Add them. + + * docs/CHANGES: Updated. + +2009-03-11 Bram Tassyns + + Fix Savannah bug #25597. + + * src/cff/cffparse.c (cff_parse_real): Don't allow fraction_length + to become larger than 9. + +2009-03-11 Werner Lemberg + + Fix Savannah bug #25814. + + * builds/unix/freetype2.in: As suggested in the bug report, move + @LIBZ@ to `Libs.private'. + +2009-03-11 Werner Lemberg + + Fix Savannah bug #25781. + We now simply check for a valid `offset', no longer handling `delta + = 1' specially. + + * src/sfnt/ttcmap.c (tt_cmap4_validate): Don't check `delta' for + last segment. + (tt_cmap4_set_range, tt_cmap4_char_map_linear, + tt_cmap4_char_map_binary): Check offset. + +2009-03-11 Werner Lemberg + + * src/base/Jamfile: Fix handling of ftadvanc.c. + Reported by Oran Agra . + +2009-03-10 Vincent Richomme + + Restructure Win32 and Wince compiler support. + + * src/builds/win32: Remove files for WinCE. + Move VC 2005 support to a separate directory. + Add directory for VC 2008 support. + + * src/builds/wince: New directory hierarchy for WinCE compilers + (VC 2005 and VC 2008). + +2009-03-09 Werner Lemberg + + More preparations for 2.3.9 release. + + * docs/CHANGES: Updated. + + * Jamfile, README: s/2.3.8/2.3.9/, s/238/239/. + +2009-03-09 Werner Lemberg + + * src/sfnt/rules.mk (SFNT_DRV_H): Add ttsbit0.c. + +2009-03-09 Alexey Kryukov + + Fix handling of EBDT formats 8 and 9 (part 2). + + This patch fixes the following problems in ttsbit0.c: + + . Bitmaps for compound glyphs were never allocated. + + . `SBitDecoder' refused to load metrics if some other metrics have + already been loaded. This condition certainly makes no sense for + recursive calls, so I've just disabled it. Another possibility + would be resetting `decoder->metrics_loaded' to false before + loading each composite component. However, we must restore the + original metrics after finishing the recursion; otherwise we can + get a misaligned glyph. + + . `tt_sbit_decoder_load_bit_aligned' incorrectly handled `x_pos', + causing some glyph components to be shifted too far to the right + (especially noticeable for small sizes). + + Note that support for grayscale bitmaps (not necessarily compound) is + completely broken in ttsbit0.c. + + * src/sfnt/tt_sbit_decoder_load_metrics: Always load metrics. + (tt_sbit_decoder_load_bit_aligned): Handle `x_pos' correctly in case + of `h == height'. + (tt_sbit_decoder_load_compound): Reset metrics after loading + components. + Allocate bitmap. + +2009-03-09 Werner Lemberg + + * builds/unix/configure.raw (version_info): Set to 9:20:3. + +2009-03-03 David Turner + + Protect SFNT kerning table parser against malformed tables. + + This closes Savannah BUG #25750. + + * src/sfnt/ttkern.c (tt_face_load_kern, tt_face_get_kerning): Fix a + bug where a malformed table would be successfully loaded but later + crash the engine during parsing. + +2009-03-03 David Turner + + Update documentation and bump version number to 2.3.9. + + * include/freetype/freetype.h: Bump patch version to 9. + * docs/CHANGES: Document the ABI break in 2.3.8. + * docs/VERSION.DLL: Update version numbers table for 2.3.9. + +2009-03-03 David Turner + + Remove ABI-breaking field in public PS_InfoFontRec definition. + + Instead, we define a new internal PS_FontExtraRec structure to + hold the additional field, then place it in various internal + positions of the corresponding FT_Face derived objects. + + * include/freetype/t1tables.h (PS_FontInfoRec): Remove the + `fs_type' field from the public structure. + * include/freetype/internal/psaux.h (T1_FieldLocation): New + enumeration `T1_FIELD_LOCATION_FONT_EXTRA'. + * include/freetype/internal/t1types.h (PS_FontExtraRec): New + structure. + (T1_FontRec, CID_FaceRec): Add it. + + * src/cid/cidload.c (cid_load_keyword): Handle + T1_FIELD_LOCATION_FONT_EXTRA. + * src/cid/cidtoken.h, src/type1/t1tokens.h, src/type42/t42parse.c: + Adjust FT_STRUCTURE and T1CODE properly to handle `FSType'. + * src/type1/t1load.c (t1_load_keyword): Handle + T1_FIELD_LOCATION_FONT_EXTRA. + + * include/freetype/internal/services/svpsinfo.h (PsInfo service): + Add `PS_GetFontExtraFunc' function typedef. + + * src/base/ftfstype.c: Include FT_INTERNAL_SERVICE_H and + FT_SERVICE_POSTSCRIPT_INFO_H. + (FT_Get_FSType_Flags): Use POSTSCRIPT_INFO service. + + * src/cff/cffdrivr.c (cff_service_ps_info): Updated. + * src/cid/cidriver.c (cid_ps_get_font_extra): New function. + (cid_service_ps_info): Updated. + * src/type1/t1driver.c (t1_ps_get_font_extra): New function. + (t1_service_ps_info): Updated. + * src/type42/t42drivr.c (t42_ps_get_font_extra): New function. + (t42_service_ps_info): Updated. + +2009-03-02 Alexey Kryukov + + Fix handling of EBDT formats 8 and 9. + + The main cycle in `blit_sbit' makes too many iterations: it actually + needs the count of lines in the source bitmap rather than in the + target image. + + * src/sfnt/ttsbit.c (blit_sbit) [FT_CONFIG_OPTION_OLD_INTERNALS]: + Add parameter `source_height' and use it for main loop. + (Load_SBit_Single) [FT_CONFIG_OPTION_OLD_INTERNALS]: Updated. + +2009-02-23 Werner Lemberg + + Fix Savannah bug #25669. + + * src/base/ftadvanc.h (FT_Get_Advances): Fix serious typo. + + * src/base/ftobjs.c (FT_Select_Metrics, FT_Request_Metrics): Fix + scaling factor for non-scalable fonts. + + * src/cff/cffdrivr.c (cff_get_advances): Use correct advance width + value to prevent incorrect scaling. + + * docs/CHANGES: Document it. + +2009-02-15 Matt Godbolt + + Fix Savannah bug #25588. + + * builds/unix/ftconfig.in (FT_MulFix_arm): Use correct syntax for + `orr' instruction. + +2009-02-11 Werner Lemberg + + * src/truetype/ttobjs.c (tt_check_trickyness): Add `DFKaiShu'. + Reported by David Bevan . + +2009-02-09 Werner Lemberg + + Fix Savannah bug #25495. + + * src/sfnt/sfobjs.c (sfnt_load_face): Test for bitmap strikes before + setting metrics and bbox values. This ensures that the check for a + font with neither a `glyf' table nor bitmap strikes can be performed + early enough to set metrics and bbox values too. + +2009-02-04 Werner Lemberg + + Fix Savannah bug #25480. + + * builds/unix/freetype-config.in: For --ftversion, don't use $prefix + but $includedir. + +2009-01-31 Werner Lemberg + + Minor docmaker improvements. + + * src/tools/docmaker/content.py (DocBlock::__init__): Ignore empty + code blocks. + +2009-01-25 Werner Lemberg + + Fix SCANCTRL handling in TTFs. + Problem reported by Alexey Kryukov . + + * src/truetype/ttinterp.c (Ins_SCANCTRL): Fix threshold handling. + +2009-01-23 Werner Lemberg + + Move FT_Get_FSType_Flags to a separate file. + Problem reported by Mickey Gabel . + + * src/base/ftobjs.c (FT_Get_FSType_Flags): Move to... + * src/base/ftfstype.c: This new file. + + * modules.cfg (BASE_EXTENSION): Add ftfstype.c. + + * docs/INSTALL.ANY: Updated. + + * builds/mac/*.txt, builds/amiga/*makefile*, + builds/win32/{visualc,visualce}/freetype.*, builds/symbian/*: + Updated. + +2009-01-22 suzuki toshiya + + * builds/unix/ftsystem.c (FT_Stream_Open): Fix 2 error + messages ending without "\n". + +2009-01-22 suzuki toshiya + + Fix Savannah bug #25347. + + * src/base/ftobjs.c (open_face_PS_from_sfnt_stream): Rewind + the stream to the original position passed to this function, + when ft_lookup_PS_in_sfnt_stream() failed. + (Mac_Read_sfnt_Resource): Rewind the stream to the head of + sfnt resource body, when open_face_PS_from_sfnt_stream() + failed. + +2009-01-19 Michael Lotz + + Fix Savannah bug #25355. + + * include/freetype/config/ftconfig.h (FT_MulFix_i386): Make + assembler code work with gcc 2.95.3 (as used by the Haiku project). + Add `cc' register to the clobber list. + +2009-01-18 Werner Lemberg + + Protect FT_Get_Next_Char. + + * src/sfnt/ttcmap.c (tt_cmap4_set_range): Apply fix similar to + change from 2008-07-22. + + Patch from Ronen Ghoshal . + +2009-01-18 Werner Lemberg + + Implement FT_Get_Name_Index for SFNT driver. + + * src/sfnt/sfdriver.c (sfnt_get_name_index): New function. + (sfnt_service_glyph_dict): Use it. + + Problem reported by Truc Truong . + +2009-01-18 Werner Lemberg + + * include/freetype/ftstroke.h (FT_Outline_GetInsideBorder): Fix + documentation. Problem reported by Truc Truong . + + * docs/CHANGES: Updated. + +2009-01-14 Werner Lemberg + + * Version 2.3.8 released. + ========================= + + + Tag sources with `VER-2-3-8'. + + * docs/VERSION.DLL: Update documentation and bump version number to + 2.3.8. + + * README, Jamfile (RefDoc), builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualce/index.html, + builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj: s/2.3.7/2.3.8/, s/237/238/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 8. + + * builds/unix/configure.raw (version_info): Set to 9:19:3. + + * docs/release: Updated. + +2009-01-14 Werner Lemberg + + * builds/toplevel.mk (dist): Compress better. + +2009-01-13 Werner Lemberg + + * src/base/ftobjs.c (FT_Get_FSType_Flags): Cast for compilation + with C++. + +2009-01-13 Werner Lemberg + + Don't use stdlib.h and friends directly. + Reported by Mickey Gabel . + + * src/base/ftdbgmem.c: s//FT_CONFIG_STANDARD_LIBRARY_H/. + + * src/gzip/ftgzip.c, src/lzw/ftlzw.c, src/raster/ftmisc.h: + s//FT_CONFIG_STANDARD_LIBRARY_H/. + + * src/autofit/aftypes.h, src/autofit/afhints.c, + src/pshinter/pshalgo.c: s//FT_CONFIG_STANDARD_LIBRARY_H/ + + * src/lzw/ftlzw.c, src/base/ftdbgmem.c: Don't include stdio.h. + +2009-01-12 Werner Lemberg + + Avoid compiler warnings. + + * */*: s/do ; while ( 0 )/do { } while ( 0 )/. + Reported by Sean McBride . + +2009-01-12 Werner Lemberg + + Fix stdlib dependencies. + + Problem reported by Mickey Gabel . + + * include/freetype/config/ftstdlib.h (ft_exit): Removed. Unused. + + * src/autofit/afhints.c, src/base/ftlcdfil.c, src/smooth/ftsmooth.c: + s/memcpy/ft_memcpy/. + * src/psaux/t1decode.c: s/memset/ft_memset/, s/memcpy/ft_memcpy/. + +2009-01-11 Werner Lemberg + + * docs/formats.txt: Add link to PCF specification. + + * include/freetype/ftbdf.h (FT_Get_BDF_Property): Improve + documentation. + +2009-01-09 suzuki toshiya + + * src/base/ftadvanc.c (_ft_face_scale_advances, FT_Get_Advance, + FT_Get_Advances): Change the type of load_flags from FT_UInt32 to + FT_Int32, to match with the flags for FT_Load_Glyph(). + * src/cff/cffdrivr.c (cff_get_advances): Ditto. + * src/truetype/ttdriver.c (tt_get_advances): Ditto. + * include/freetype/ftadvanc.h (FT_Get_Advance, FT_Get_Advances): + Ditto. + * include/freetype/internal/ftdriver.h (FT_Face_GetAdvancesFunc): + Ditto. + +2009-01-09 Daniel Zimmermann + + * src/gxvalid/gxvmort.c (gxv_mort_feature_validate): Fix wrong + length check. From Savannah patch #6682. + +2009-01-09 Werner Lemberg + + Fix problem with T1_FIELD_{NUM,FIXED}_TABLE2. + + * src/psaux/psobjs.c (ps_parser_load_field_table): Don't handle + `count_offset' if it is zero (i.e., unused). Otherwise, the first + element of the structure which holds the data is erroneously + modified. Problem reported by Chi Nguyen . + +2009-01-09 suzuki toshiya + + * src/base/ftadvanc.c (_ft_face_scale_advances, FT_Get_Advance, + FT_Get_Advances): Extend the type of load_flags from FT_UInt to + FT_UInt32, to pass 32-bit flags on 16bit platforms. + * src/cff/cffdrivr.c (cff_get_advances): Ditto. + * src/truetype/ttdriver.c (tt_get_advances): Ditto. + * include/freetype/ftadvanc.h (FT_Get_Advance, FT_Get_Advances): + Ditto. + * include/freetype/internal/ftdriver.h (FT_Face_GetAdvancesFunc): + Ditto. + +2009-01-09 suzuki toshiya + + * src/base/ftobjs.c (FT_Done_Library): Issue an error message when + FT_Done_Face() cannot free all faces. If the list of the opened + faces includes broken face which FT_Done_Face() cannot free, + FT_Done_Library() retries FT_Done_Face() and it can fall into + an endless loop. See the discussion: + http://lists.gnu.org/archive/html/freetype-devel/2008-09/msg00047.html + http://lists.gnu.org/archive/html/freetype-devel/2008-10/msg00000.html + +2009-01-07 Werner Lemberg + + * docs/CHANGES: Document new key `a' in ftdiff. + +2009-01-06 Werner Lemberg + + * autogen.sh: Don't use GNUisms while calling sed. Problem reported + by Sean McBride. + +2009-01-06 Werner Lemberg + + * src/base/ftbitmap.c (FT_Bitmap_Convert): Handle FT_PIXEL_MODE_LCD + and FT_PIXEL_MODE_LCD_V. Problem reported by Chi Nguyen + . + +2009-01-06 Diego Pettenò + + * builds/unix/configure.raw: Don't call AC_CANONICAL_BUILD and + AC_CANONICAL_TARGET and use $host_os only. A nice explanation for + this change can be found at + http://blog.flameeyes.eu/s/canonical-target. + + From Savannah patch #6712. + +2009-01-06 Sean McBride + + * src/base/ftdbgmem.c (_debug_mem_dummy): Make it static. + + * src/base/ftmac.c: Remove some #undefs. + +2008-12-26 Werner Lemberg + + Set `face_index' field in FT_Face for all font formats. + + * cff/cffobjs.c (cff_face_init), winfonts/winfnt.c (FNT_Face_Init), + sfnt/sfobjs.c (sfnt_init_face): Do it. + + * docs/CHANGES: Document it. + +2008-12-22 Steve Grubb + + * builds/unix/ftsystem.c (FT_Stream_Open): Reject zero-length files. + Patch from Savannah bug #25151. + +2008-12-21 Werner Lemberg + + * src/pfr/pfrdrivr.c, src/winfonts/winfnt.c, src/cache/ftcmanag.c, + src/smooth/ftgrays.c, src/base/ftobjc.s, src/sfobjs.c: + s/_Err_Bad_Argument/_Err_Invalid_Argument/. The former is for + errors in the bytecode interpreter only. + +2008-12-21 Werner Lemberg + + * src/base/ftpfr.c (FT_Get_PFR_Metrics): Protect against NULL + arguments. + Fix return value for non-PFR fonts. Both problems reported by Chi + Nguyen . + +2008-12-21 anonymous + + FT_USE_MODULE declares things as: + + extern const FT_Module_Class + + (or similar for C++). However, the actual types of the variables + being declared are often different, e.g., FT_Driver_ClassRec or + FT_Renderer_Class. (Some are, indeed, FT_Module_Class.) + + This works with most C compilers (since those structs begin with an + FT_Module_Class struct), but technically it's undefined behavior. + + To quote the ISO/IEC 9899:TC2 final committee draft, section 6.2.7 + paragraph 2: + + All declarations that refer to the same object or function shall + have compatible type; otherwise, the behavior is undefined. + + (And they are not compatible types.) + + Most C compilers don't reject (or even detect!) code which has this + issue, but the GCC LTO development branch compiler does. (It + outputs the types of the objects while generating .o files, along + with a bunch of other information, then compares them when doing the + final link-time code generation pass.) + + Patch from Savannah bug #25133. + + * src/base/ftinit.c (FT_USE_MODULE): Include variable type. + + * builds/amiga/include/freetype/config/ftmodule.h, + include/freetype/config/ftmodule.h, */module.mk: Updated to declare + pass correct types to FT_USE_MODULE. + +2008-12-21 Hongbo Ni + + * src/autofit/aflatin.c (af_latin_hint_edges), + src/autofit/aflatin2.c (af_latin2_hint_edges), src/autofit/afcjk.c + (af_cjk_hint_edges): Protect against division by zero. This fixes + Savannah bug #25124. + +2008-12-18 Werner Lemberg + + * docs/CHANGES: Updated. + +2008-12-18 Bevan, David + + Provide API for accessing embedding and subsetting restriction + information. + + * include/freetype.h (FT_FSTYPE_INSTALLABLE_EMBEDDING, + FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING, + FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING, FT_FSTYPE_EDITABLE_EMBEDDING, + FT_FSTYPE_NO_SUBSETTING, FT_FSTYPE_BITMAP_EMBEDDING_ONLY): New + macros. + (FT_Get_FSType_Flags): New function declaration. + + * src/base/ftobjs.c (FT_Get_FSType_Flags): New function. + + * src/cid/cidtoken.h, src/type1/t1tokens.h, src/type42/t42parse.c + (t42_keywords): Handle `FSType'. + + * include/freetype/t1tables.h (PS_FontInfoRec): Add `fs_type' field. + +2008-12-17 Werner Lemberg + + * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Don't use internal + macros so that copying the source code into an application works + out of the box. + +2008-12-17 Werner Lemberg + + * include/freetype/ftsynth.h, src/base/ftsynth.c: Move + FT_GlyphSlot_Own_Bitmap to... + * include/freetype/ftbitmap.h, src/base/ftbitmap.c: These files. + + * docs/CHANGES: Document it. + +2008-12-10 Werner Lemberg + + Generalize the concept of `tricky' fonts by introducing + FT_FACE_FLAG_TRICKY to indicate that the font format's hinting + engine is necessary for correct rendering. + + At the same time, slightly modify the behaviour of tricky fonts: + FT_LOAD_NO_HINTING is now ignored. To really force raw loading + of tricky fonts (without hinting), both FT_LOAD_NO_HINTING and + FT_LOAD_NO_AUTOHINT must be used. + + Finally, tricky TrueType fonts always use the bytecode interpreter + even if the patented code is used. + + * include/freetype/freetype.h (FT_FACE_FLAG_TRICKY, FT_IS_TRICKY): + New macros. + + * src/truetype/ttdriver.c (Load_Glyph): Handle new load flags + semantics as described above. + + * src/truetype/ttobjs.c (tt_check_trickyness): New function, using + code of ... + (tt_face_init): This function, now simplified and updated to new + semantics. + + * src/base/ftobjs.c (FT_Load_Glyph): Don't use autohinter for tricky + fonts. + + * docs/CHANGES: Document it. + +2008-12-09 Werner Lemberg + + Really fix Savannah bug #25010: An SFNT font with neither outlines + nor bitmaps can be considered as containing space `glyphs' only. + + * src/truetype/ttpload.c (tt_face_load_loca): Handle the case where + a `glyf' table is missing. + + * src/truetype/ttgload.c (load_truetype_glyph): Abort if we have no + `glyf' table but a non-zero `loca' entry. + (tt_loader_init): Handle missing `glyf' table. + + * src/base/ftobjs.c (FT_Load_Glyph): Undo change 2008-12-05. + + * src/sfnt/sfobjs.c (sfnt_load_face): A font with neither outlines + nor bitmaps is scalable. + +2008-12-05 Werner Lemberg + + * src/autofit/aflatin.c (af_latin_uniranges): Add more ranges. This + fixes Savannah bug #21190 which also provides a basic patch. + +2008-12-05 Werner Lemberg + + * include/freetype/freetype.h (FT_LOAD_ADVANCE_ONLY): Use value + 0x100 instead of 0x10000; the latter value is already occupied by + FT_LOAD_TARGET_LIGHT. Bug reported by James Cloos. + + + Handle SFNT with neither outlines nor bitmaps. This fixes Savannah + bug #25010. + + * src/base/ftobjs.c (FT_Load_Glyph): Reject fonts with neither + outlines nor bitmaps. + + * src/sfnt/sfobjs.c (sfnt_load_face): Don't return an error if there + is no table with glyphs. + + + * src/sfnt/ttload.c (tt_face_lookup_table): Improve debugging + message. + +2008-12-01 Werner Lemberg + + GDEF tables need `glyph_count' too for validation. Problem reported + by Chi Nguyen . + + * src/otvalid/otvgdef.c (otv_GDEF_validate), src/otvalid/otvalid.h + (otv_GDEF_validate), src/otvalid/otvmod.c (otv_validate): Pass + `glyph_count'. + +2008-11-29 Werner Lemberg + + * src/autofit/afcjk.c, src/base/ftoutln.c, src/base/ftrfork.c, + src/bdf/bdfdrivr.c, src/gxvalid/gxvmorx.c, src/otvalid/otvmath.c, + src/pcf/pcfdrivr.c, src/psnames/pstables.h, src/smooth/ftgrays.c, + src/tools/glnames.py, src/truetype/ttinterp.c, src/type1/t1load.c, + src/type42/t42objs.c, src/winfonts/winfnt.c: Fix compiler warnings + (Atari PureC). + +2008-11-29 James Cloos + + * src/type/t1load.c (mm_axis_unmap): Revert previous patch and fix + it correctly by using FT_INT_TO_FIXED (FreeType expects 16.16 values + in the /BlendDesignMap space). + +2008-11-29 James Cloos + + * src/type1/t1load.c (mm_axis_unmap): `blend_points' is FT_Fixed*, + whereas `design_points' is FT_Long*. Therefore, return blend rather + than design points. + +2008-11-27 Werner Lemberg + + * src/cff/cffparse.c (cff_parse_real): Handle more than nine + significant digits correctly. This fixes Savannah bug #24953. + +2008-11-25 Daniel Zimmermann + + * src/base/ftstream.c (FT_Stream_ReadFields): Don't access stream + before the NULL check. From Savannah patch #6681. + +2008-11-24 Werner Lemberg + + Fixes from the gnuwin32 port. + + * src/base/ftlcdfil.c: s/EXPORT/EXPORT_DEF/. + + * src/base/ftotval.c: Include FT_OPENTYPE_VALIDATE_H. + + * src/psaux/psobjs.c (ps_table_add): Check `length'. + +2008-11-15 Werner Lemberg + + * src/truetype/ttinterp.c (tt_default_graphics_state): The default + value for `scan_type' is zero, as confirmed by Greg Hitchcock from + Microsoft. Problem reported by Michal Nowakowski + . + +2008-11-12 Tor Andersson + + * src/cff/cffdrivr.c (cff_get_cmap_info): Initialize `format' field. + This fixes Savannah bug #24819. + +2008-11-08 Werner Lemberg + + * src/sfnt/sfobjs.c (sfnt_load_face): Remove #if 0/#endif guards + since OpenType version 1.5 has been released. + + * include/ttnameid.h (TT_NAME_ID_WWS_FAMILY, + TT_NAME_ID_WWS_SUBFAMILY): New macros for OpenType 1.5. + (TT_URC_COPTIC, TT_URC_VAI, TT_URC_NKO, TT_URC_BALINESE, + TT_URC_PHAGSPA, TT_URC_NON_PLANE_0, TT_URC_PHOENICIAN, + TT_URC_TAI_LE, TT_URC_NEW_TAI_LUE, TT_URC_BUGINESE, + TT_URC_GLAGOLITIC, TT_URC_YIJING, TT_URC_SYLOTI_NAGRI, + TT_URC_LINEAR_B, TT_URC_ANCIENT_GREEK_NUMBERS, TT_URC_UGARITIC, + TT_URC_OLD_PERSIAN, TT_URC_SHAVIAN, TT_URC_OSMANYA, + TT_URC_CYPRIOT_SYLLABARY, TT_URC_KHAROSHTHI, TT_URC_TAI_XUAN_JING, + TT_URC_CUNEIFORM, TT_URC_COUNTING_ROD_NUMERALS, TT_URC_SUNDANESE, + TT_URC_LEPCHA, TT_URC_OL_CHIKI, TT_URC_SAURASHTRA, TT_URC_KAYAH_LI, + TT_URC_REJANG, TT_URC_CHAM, TT_URC_ANCIENT_SYMBOLS, + TT_URC_PHAISTOS_DISC, TT_URC_OLD_ANATOLIAN, TT_URC_GAME_TILES): New + macros for OpenType 1.5. + +2008-11-08 Wenlin Institute + + * src/base/ftobjs.c (ft_glyphslot_free_bitmap): Protect against + slot->internal == NULL. Reported by Graham Asher. + +2008-11-08 Werner Lemberg + + * src/sfnt/sfobjs.c (tt_face_get_name): Modified to return an error + code so that memory allocation problems can be distinguished from + missing table entries. Reported by Graham Asher. + (GET_NAME): New macro. + (sfnt_load_face): Use it. + +2008-11-05 Werner Lemberg + + * devel/ftoption.h, include/freetype/config/ftoption.h + [TT_CONFIG_OPTION_BYTECODE_INTERPRETER]: Undefine + TT_CONFIG_OPTION_UNPATENTED_HINTING. This fixes the return value of + `FT_Get_TrueType_Engine_Type' (and makes it work as documented). + Reported in bug #441638 of bugzilla.novell.com. + + * docs/CHANGES: Document it. + +2008-11-03 Werner Lemberg + + * src/type1/t1load.c (parse_subrs): Use an endless loop. There are + fonts (like HELVI.PFB version 003.001, used on OS/2) which define + some `subrs' elements more than once. Problem reported by Peter + Weilbacher . + +2008-10-15 Graham Asher + + * src/sfnt/ttpost.c (tt_post_default_names): Add `const'. + +2008-10-15 David Turner + + * src/truetype/ttgxvar.c (TT_Set_MM_Blend): Disambiguate for + meddlesome compilers' warning against `for ( ...; ...; ...) ;'. + +2008-10-14 Werner Lemberg + + * src/cff/cffobjs.c (cff_face_init): Remove compiler warning. + Suggested by Bram Tassyns in Savannah patch #6651. + +2008-10-12 Graham Asher + + * src/sfnt/sfobjs.c (sfnt_load_face): Fix computation of + `underline_position'. + +2008-10-12 Werner Lemberg + + * docs/CHANGES: Updated. + +2008-10-09 suzuki toshiya + + Fix Savannah bug #24468. + + According to include/freetype/internal/ftobjs.h, the appropriate + type to interchange single character codepoint is FT_UInt32. It + should be distinguished from FT_UInt which can be 16bit integer. + + * src/sfnt/ttcmap.c (tt_cmap4_char_map_linear): Change the type + of the second argument `pcharcode' from FT_UInt* to FT_UInt32*. + (tt_cmap4_char_map_binary): Ditto. + (tt_cmap14_get_nondef_chars): Change the type of return value + from FT_UInt* to FT_UInt32*. + +2008-10-08 John Tytgat + + Fix Savannah bug #24485. + + * src/type1/t1load.c (parse_charstrings): Assure that we always have + a .notdef glyph. + +2008-10-05 suzuki toshiya + + * src/base/ftmac.c: Include FT_TRUETYPE_TAGS_H for multi build. + * builds/mac/ftmac.c: Ditto. + +2008-10-05 suzuki toshiya + + * include/freetype/tttags.h (TTAG_TYP1, TTAG_typ1): Fix definitions. + * src/base/ftobjs.c: Include FT_TRUETYPE_TAGS_H. + +2008-10-05 suzuki toshiya + + * src/sfnt/sfobjs.c (sfnt_open_font): Allow `typ1' version tag in + the beginning of sfnt container. + * src/sfnt/ttload.c (check_table_dir): Return + `SFNT_Err_Table_Missing' when sfnt table directory structure is + correct but essential tables for TrueType fonts (`head', `bhed' or + `SING') are missing. Other errors are returned by + SFNT_Err_Unknown_File_Format. + + * src/base/ftobjs.c (FT_Open_Face): When TrueType driver returns + `FT_Err_Table_Missing', try `open_face_PS_from_sfnt_stream'. It is + enabled only when old mac font support is configured. + +2008-10-04 suzuki toshiya + + * include/freetype/tttags.h (TTAG_CID, TTAG_FOND, TTAG_LWFN, + TTAG_POST, TTAG_sfnt, TTAG_TYP1, TTAG_typ1): New tags to simplify + the repeated calculations of these values in ftobjs.c and ftmac.c. + * src/base/ftobjs.c: Replace all FT_MAKE_TAG by new tags. + * src/base/ftmac.c: Ditto. + * builds/mac/ftmac.c: Ditto. + +2008-10-04 suzuki toshiya + + * src/base/ftobjs.c (ft_lookup_PS_in_sfnt_stream): Remove wrong + initialization of *is_sfnt_cid. + +2008-10-04 Werner Lemberg + + * src/base/ftobjs.c (open_face_PS_from_sfnt_stream): Remove compiler + warnings. + +2008-10-04 suzuki toshiya + + * src/base/ftobjs.c (ft_lookup_PS_in_sfnt): Replaced by... + (ft_lookup_PS_in_sfnt_stream): This. + (open_face_PS_from_sfnt_stream): New function. It checks whether + the stream is sfnt-wrapped Type1 PS font or sfnt-wrapped CID-keyed + font, then try to open a face for given face_index. + (Mac_Read_sfnt_Resource): Replace the combination of + `ft_lookup_PS_in_sfnt' and `open_face_from_buffer' by + `open_face_PS_from_sfnt_stream'. + * src/base/ftmac.c (FT_New_Face_From_SFNT): Ditto. + * builds/mac/ftmac.c (FT_New_Face_From_SFNT): Ditto. + * src/base/ftbase.h: Remove `ft_lookup_PS_in_sfnt' and add + `open_face_PS_from_sfnt_stream'. + +2008-10-03 suzuki toshiya + + * src/base/ftobjs.c (ft_lookup_PS_in_sfnt): Set *is_sfnt_cid to + FALSE if neither `CID ' nor `TYP1' is found in the sfnt container. + +2008-10-03 suzuki toshiya + + * include/freetype/config/ftconfig.h: Define FT_MACINTOSH when SC or + MrC compiler of MPW is used. These compilers do not define the + macro __APPLE__ by themselves. + * builds/unix/ftconfig.in: Ditto. + * builds/vms/ftconfig.h: Ditto. + * src/base/ftbase.c: Use FT_MACINTOSH instead of __APPLE__, to + include ftmac.c if FreeType 2 is built by MPW. + * src/base/ftobjs.c: Use FT_MACINTOSH instead of __APPLE__, to + enable shared functions for ftmac.c if FreeType 2 is built by MPW. + + * builds/mac/ftmac.c: Include ftbase.h. + (memory_stream_close): Removed. + (new_memory_stream): Ditto. + (open_face_from_buffer): Removed. Use the implementation in + ftobjs.c. + (ft_lookup_PS_in_sfnt): Ditto. + + * builds/mac/FreeType.m68k_far.make.txt: Build ftmac.c as an + included part of ftbase.c, to share the functions in ftobjs.c. The + rule compiling ftmac.c separately is removed and the rule copying + ftbase.c from src/base/ftbase.c to builds/mac/ftbase.c is added. + * builds/mac/FreeType.m68k_cfm.make.txt: Ditto. + * builds/mac/FreeType.ppc_classic.make.txt: Ditto. + * builds/mac/FreeType.ppc_carbon.make.txt: Ditto. + +2008-10-02 Bram Tassyns + + * src/cff/cffgload.c (cff_slot_load): Map CID 0 to GID 0. This + fixes Savannah bug #24430. + +2008-10-02 Werner Lemberg + + * builds/freetype.mk (BASE_H): Rename to... + (INTERNAL_H): This. + (FREETYPE_H): Updated. + * src/base/rules.mk: (BASE_OBJ_S, OBJ_DIR/%.$O): Add BASE_H. + * src/bdf/rules.mk (BDF_DRV_H): Add bdferror.h. + * src/cache/rules.mk (CACHE_DRV_H): Add ftccache.h and ftcsbits.h. + * src/pcf/rules.mk (PCF_DRV_H): Add pcfread.h. + * src/raster/rules.mk (RASTER_DRV_H): Add ftmisc.h. + * src/type42/rules.mk (T42_DRV_H): Add t42types.h. + +2008-10-02 suzuki toshiya + + * src/base/ftbase.h: New file to declare the private utility + functions shared by the sources of base modules. Currently, + `ft_lookup_PS_in_sfnt' and `open_face_from_buffer' are declared to + share between ftobjs.c and ftmac.c. + + * src/base/rule.mk: Add ftbase.h. + + * src/base/ftobjs.c: Include ftbase.h. + (memory_stream_close): Build on any platform when old MacOS font + support is enabled. + (new_memory_stream): Ditto. + (open_face_from_buffer): Build on any platform when old MacOS font + support is enabled. The counting of the face in a font file is + slightly different between Carbon-dependent parser and Carbon-free + parser. They are merged with the platform-specific conditional. + (ft_lookup_PS_in_sfnt): Ditto. + + * src/base/ftmac.c: Include ftbase.h. + (memory_stream_close): Removed. + (new_memory_stream): Ditto. + (open_face_from_buffer): Removed. Use the implementation in + ftobjs.c. + (ft_lookup_PS_in_sfnt): Ditto. + +2008-10-02 Werner Lemberg + + * src/sfnt/sfobjs.c (sfnt_load_face): `psnames_error' is only needed + if TT_CONFIG_OPTION_POSTSCRIPT_NAMES is defined. + +2008-10-01 Werner Lemberg + + * src/truetype/ttobjs.c (tt_face_done), src/cff/cffobjs.c + (cff_face_done), src/pfr/pfrobjs.c (pfr_face_done), + src/pcf/pcfdrivr.c (PCF_Face_Done), src/cid/cidobjs.c + (cid_face_done), src/bdf/bdfdrivr. (BDF_Face_Done), + src/sfnt/sfobjs.c (sfnt_face_done): Protect against face == 0. + Reported by Graham Asher. + +2008-09-30 suzuki toshiya + + * src/base/rules.mk: Add conditional source to BASE_SRC, for `make + multi' on Mac OS X. If the macro $(ftmac_c) is defined, + $(BASE_DIR)/$(ftmac_c) is added to BASE_SRC. In a normal build, the + lack of ftmac.c in BASE_SRC is not serious because ftbase.c includes + ftmac.c. + * builds/unix/unix-def.in: Add a macro definition of $(ftmac_c). + * builds/unix/configure.raw: Add procedure to set up appropriate + value of $(ftmac_c) with the consideration of the availability of + Carbon framework. + +2008-09-30 suzuki toshiya + + * src/base/Jamfile: Add target for multi build by jam on Mac OS X. + * src/base/ftobjs.c (FT_New_Face): Fix the condition to include this + function for MPW building. It is synchronized the condition to + include ftmac.c source into ftbase.c. + +2008-09-22 Werner Lemberg + + * src/cff/cffgload.c (CFF_Operator, cff_argument_counts, + cff_decoder_parse_charstrings): Handle (invalid) + `callothersubr' and `pop' instructions. + +2008-09-22 John Tytgat + + Fix Savannah bug #24307. + + * include/freetype/internal/t1types.h (CID_FaceRec), + src/type42/t42types.h (T42_FaceRec): Comment out `afm_data'. + +2008-09-21 Werner Lemberg + + * src/smooth/ftgrays.c (gray_raster_render): Don't dereference + `target_map' if FT_RASTER_FLAG_DIRECT is set. Problem reported by + Stephan T. Lavavej . + +2008-09-21 suzuki toshiya + + * src/otvalid/Jamfile: Add missing target `otvmath' for multi build + by jam. + * src/sfnt/Jamfile: Add missing target `ttmtx' for multi build by + jam. + +2008-09-20 Werner Lemberg + + * src/smooth/ftgrays.c (gray_find_cell): Fix threshold. The values + passed to this function are already `normalized'. Problem reported + by Stephan T. Lavavej . + + * docs/CHANGES: Document it. + +2008-09-20 Werner Lemberg + + * src/base/ftoutln.c: Include FT_INTERNAL_DEBUG_H. + (FT_Outline_Decompose): Decorate with tracing messages. + + * src/smooth/ftgrays.c [DEBUG_GRAYS]: Replace with + FT_DEBUG_LEVEL_TRACE. + [_STANDALONE_ && FT_DEBUG_LEVEL_TRACE]: Include stdio.h and + stdarg.h. + + (FT_TRACE) [_STANDALONE_]: Remove. + (FT_Message) [_STANDALONE_ && FT_DEBUG_LEVEL_TRACE]: New function. + (FT_TRACE5, FT_TRACE7) [_STANDALONE_]: New macros. + (FT_ERROR) [_STANDALONE_]: Updated. + + (gray_hline) [FT_DEBUG_LEVEL_TRACE]: Fix condition. + Use FT_TRACE7. + (gray_dump_cells): Make it `static void'. + (gray_convert_glyph): Use FT_TRACE7. + + (FT_Outline_Decompose) [_STANDALONE_]: Synchronize with version in + ftoutln.c. + + * src/base/ftadvanc.c (FT_Get_Advance, FT_Get_Advances): Use + FT_ERROR_BASE. + + * docs/formats.txt: Updated. + +2008-09-19 suzuki toshiya + + * src/base/ftmac.c: Import sfnt-wrapped Type1 and sfnt-wrapped + CID-keyed font support. + * builds/mac/ftmac.c: Ditto. + +2008-09-19 suzuki toshiya + + * src/base/ftobjs.c (Mac_Read_sfnt_Resource): Fix double free bug in + sfnt-wrapped Type1 and sfnt-wrapped CID-keyed font support code. + `open_face_from_buffer' frees the passed buffer if it cannot open a + face from the buffer, so the caller must not free it. + +2008-09-19 suzuki toshiya + + * src/base/ftobjs.c (Mac_Read_sfnt_Resource): Add initial support + for sfnt-wrapped Type1 and sfnt-wrapped CID-keyed font. + (ft_lookup_PS_in_sfnt): New function to look up `TYP1' or `CID ' + table in sfnt table directory. It is used before loading TrueType + font driver. + + * docs/CHANGES: Add note about the current status of sfnt-wrapped + Type1 and sfnt-wrapped CID-keyed font support. + +2008-09-18 Werner Lemberg + + * src/base/ftsystem.c (FT_Done_Memory): Use ft_sfree directly for + orthogonality (ft_free and ft_sfree could belong to different memory + pools). This fixes Savannah bug #24297. + +2008-09-18 suzuki toshiya + + * src/cff/cffobjs.c (cff_face_init): Use TTAG_OTTO defined + in ttags.h instead of numerical value 0x4F54544FL. + +2008-09-16 Werner Lemberg + + * src/cff/cffgload.h, src/cff/cffgload.c + (cff_decoder_set_width_only): Eliminate function call. + +2008-09-15 George Williams + + Fix Savannah bug #24179, reported by Bram Tassyns. + + * src/type1/t1load.c (mm_axis_unmap, T1_Get_MM_Var): Fix computation + of default values. + +2008-09-15 Werner Lemberg + + * src/tools/glnames.py (main): Surround `ft_get_adobe_glyph_index' + and `ft_adobe_glyph_list' with FT_CONFIG_OPTION_ADOBE_GLYPH_LIST to + prevent unconditional definition. This fixes Savannah bug #24241. + + * src/psnames/pstables.h: Regenerated. + +2008-09-13 Werner Lemberg + + * autogen.sh, builds/unix/configure.raw, + include/freetype/config/ftconfig.h, builds/unix/ftconfig.in: Minor + beautifying. + + * include/freetype/ftadvanc.h, include/freetype/ftgasp.h, + include/freetype/ftlcdfil.h: Protect against FreeType 1. + Some other minor fixes. + + * devel/ftoption.h: Synchronize with + include/freetype/config/ftoption.h. + +2008-09-11 Werner Lemberg + + * src/base/ftbase.c: Include ftadvanc.c. + +2008-09-11 suzuki toshiya + + * builds/unix/ftconfig.in: Duplicate the cpp computation of + FT_SIZEOF_{INT|LONG} from include/freetype/config/ftconfig.h. + (FT_USE_AUTOCONF_SIZEOF_TYPES): New macro. If defined, the cpp + computation is disabled and the statically configured sizes are + used. This fixes Savannah bug #21250. + + * builds/unix/configure.raw: Add the checks to compare the cpp + computation results of the bit length of int and long versus the + sizes detected by running `configure'. If the results are + different, FT_USE_AUTOCONF_SIZEOF_TYPES is defined to prioritize the + results. + New option --{enable|disable}-biarch-config is added to define or + undefine FT_USE_AUTOCONF_SIZEOF_TYPES manually. + +2008-09-05 suzuki toshiya + + * builds/unix/configure.raw: Clear FT2_EXTRA_LIBS when Carbon or + ApplicationService framework is missing. Although this value is not + used in building of FreeType2, it is written in `freetype2.pc' and + `freetype-config'. + +2008-09-01 david turner + + * src/cache/ftccmap.c (FTC_CMapCache_Lookup): Accept a negative cmap + index to mean `use default cached FT_Face's charmap'. This fixes + Savannah bug #22625. + * include/freetype/ftcache.h: Document it. + + + Make FT_MulFix an inlined function. This is done to speed up + FreeType a little (on x86 3% when loading+hinting, 10% when + rendering, ARM savings are more important though). Disable this by + undefining FT_CONFIG_OPTION_INLINE_MULFIX. + + Use of assembler code can now be controlled with + FT_CONFIG_OPTION_NO_ASSEMBLER. + + * include/freetype/config/ftconfig.h, builds/unix/ftconfig.in + [!FT_CONFIG_OPTION_NO_ASSEMBLER] (FT_MulFix_arm): New assembler + implementation. + [!FT_CONFIG_OPTION_NO_ASSEMBLER] (FT_MulFix_i386): Assembler + implementation taken from `ftcalc.c'. + [!FT_CONFIG_OPTION_NO_ASSEMBLER] (FT_MULFIX_ASSEMBLER): New macro + which is defined to the platform-specific assembler implementation + of FT_MulFix. + [FT_CONFIG_OPTION_INLINE_MULFIX && FT_MULFIX_ASSEMBLER] + (FT_MULFIX_INLINED): New macro. + + * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_NO_ASSEMBLER, + FT_CONFIG_OPTION_INLINE_MULFIX): New macros. + + * include/freetype/freetype.h: Updated to handle FT_MULFIX_INLINED. + + * src/base/ftcalc.c: Updated to use FT_MULFIX_ASSEMBLER and + FT_MULFIX_INLINED. + + + Add a new header named FT_ADVANCES_H declaring some new APIs to + extract the advances of one or more glyphs without necessarily + loading their outlines. Also provide `fast loaders' for the + TrueType, Type1, and CFF font drivers (more to come later). + + * src/base/ftadvanc.c, include/freetype/ftadvanc.h: New files. + + * include/freetype/config/ftheader.h (FT_ADVANCES_H): New macro. + * include/freetype/freetype.h (FT_LOAD_ADVANCE_ONLY): New macro. + + * include/freetype/internal/ftdriver.h (FT_Face_GetAdvancesFunc): + `flags' and `advances' are now of type `FT_UInt' and `FT_Fixed', + respectively. + + * src/base/Jamfile (_sources), src/base/rules.mk (BASE_SRC): Add + ftadvanc.c. + + * src/cff/cffdrivr.c (cff_get_advances): New function. + (cff_driver_class): Register it. + + * src/cff/cffgload.c (cff_decoder_set_width_only): New function. + (cff_decoder_parse_charstrings): Handle `width_only'. + (cff_slot_load): Handle FT_LOAD_ADVANCE_ONLY. + + * src/cff/cffgload.h (cff_decoder): New element `width_only'. + (cff_decoder_set_width_only): New declaration. + + * src/truetype/ttdriver.c (tt_get_advances): New function. + (tt_driver_class): Register it. + + * src/truetype/ttgload.c (Get_HMetrics, Get_VMetrics): Renamed to... + (TT_Get_HMetrics, TT_Get_VMetrics): This. + Update callers. + * src/truetype/ttgload.h: Declare them. + + * src/type1/t1gload.h, src/type1/t1gload.c (T1_Get_Advances): New + function. + * src/type1/t1driver.c (t1_driver_class): Register T1_Get_Advances. + + + Add checks for minimum version of the `autotools' stuff. + + * autogen.sh: Implement it. + (get_major_version, get_minor_version, get_patch_version, + compare_to_minimum_version, check_tool_version): New auxiliary + functions. + + * README.CVS: Document it. + +2008-08-29 suzuki toshiya + + * src/sfnt/sfobjs.c (sfnt_open_font): Use TTAG_OTTO defined in + ttags.h instead of FT_MAKE_TAG( 'O', 'T', 'T', 'O' ). + +2008-08-28 Werner Lemberg + + * src/type1/t1load.c (parse_encoding): Protect against infinite + loop. This fixes Savannah bug #24150 (where a patch has been posted + too). + +2008-08-23 Werner Lemberg + + * src/type/t1afm.c (compare_kern_pairs), src/pxaux/afmparse.c + (afm_compare_kern_pairs): Fix comparison. This fixes Savannah bug + #24119. + +2008-08-19 suzuki toshiya + + * src/base/ftobjs.c (FT_Stream_New): Initialize *astream always, + even if passed library or arguments are invalid. This fixes a bug + that an uninitialized stream is freed when an invalid library handle + is passed. Originally proposed by Mike Fabian, 2008/08/18 on + freetype-devel. + (FT_Open_Face): Ditto (stream). + (load_face_in_embedded_rfork): Ditto (stream2). + +2008-08-18 suzuki toshiya + + * src/base/ftmac.c: Add a fallback to guess the availability of the + `ResourceIndex' type. It is used when built without configure + (e.g., a build with Jam). + * builds/mac/ftmac.c: Ditto. + * builds/unix/configure.raw: Set HAVE_TYPE_RESOURCE_INDEX to 1 or 0 + explicitly, even if `ResourceIndex' is unavailable. + +2008-08-18 suzuki toshiya + + * builds/unix/configure.raw: In checking of Mac OS X features, + all-in-one header file `Carbon.h' is replaced by the minimum + header file `CoreServices.h', similar to current src/base/ftmac.c. + +2008-08-18 suzuki toshiya + + * src/sfnt/ttcmap.c (tt_cmap2_validate): Skip the validation of + sub-header when its code_count is 0. Many Japanese Dynalab fonts + include such an empty sub-header (code_count == 0, first_code == 0 + delta == 0, but offset != 0) as the second sub-header in SJIS cmap. + +2008-08-04 Werner Lemberg + + * src/type1/t1tokens.h: Handle `ForceBold' keyword. This fixes + Savannah bug #23995. + + * src/cid/cidload.c (parse_expansion_factor): New callback function. + (cid_field_records): Use it for `ExpansionFactor'. + * src/cod/cidtoken.h: Handle `ForceBold' keyword. + Don't handle `ExpansionFactor'. + +2008-08-04 Bram Tassyns + + * src/cff/cffparse.c (cff_parse_fixed_scaled): Fix thinko which + resulted in incorrect scaling. This fixes Savannah bug #23973. + +2008-08-04 Werner Lemberg + + Be more tolerant w.r.t. invalid entries in SFNT table directory. + + * src/sfnt/ttload.c (check_table_dir): Ignore invalid entries and + adjust table count. + Add more trace messages. + (tt_face_load_font_dir): Updated. + +2008-07-30 Werner Lemberg + + * src/cff/cffgload.c (cff_decoder_parse_charstrings): No longer + assume that the first argument on the stack is the bottom-most + element. Two reasons: + + o According to people from Adobe it is missing in the Type 2 + specification that pushing of additional, superfluous arguments + on the stack is prohibited. + + o Acroread in general handles fonts differently, namely by popping + the number of arguments needed for a particular operand (as a PS + interpreter would do). In case of buggy fonts this causes a + different interpretation which of the elements on the stack are + superfluous and which not. + + Since there are CFF subfonts (embedded in PDFs) which rely on + Acroread's behaviour, FreeType now does the same. + +2008-07-27 Werner Lemberg + + Add extra mappings for `Tcommaaccent' and `tcommaaccent'. This + fixes Savannah bug #23940. + + * src/psnames/psmodule.c (WGL_EXTRA_LIST_SIZE): Rename to... + (EXTRA_GLYPH_LIST_SIZE): This. + Increase by 2. + (ft_wgl_extra_unicodes): Rename to... + (ft_extra_glyph_unicodes): This. + Add two code values. + (ft_wgl_extra_glyph_names): Rename to... + (ft_extra_glyph_names): This. + Add two glyphs. + (ft_wgl_extra_glyph_name_offsets): Rename to... + (ft_extra_glyph_name_offsets): This. + Add two offsets. + + (ps_check_wgl_name, ps_check_wgl_unicode): Rename to... + (ps_check_extra_glyph_name, ps_check_extra_glyph_unicode): This. + Updated. + (ps_unicodes_init): Updated. + +2008-07-26 Werner Lemberg + + * src/cff/cffgload.c (cff_decoder_prepare, + cff_decoder_parse_charstrings): Improve debug output. + +2008-07-22 Martin McBride + + * src/sfnt/ttcmap.c (tt_cmap4_validate, tt_cmap4_char_map_linear, + tt_cmap4_char_map_binary): Handle fonts which treat the last segment + specially. According to the specification, such fonts would be + invalid but acroread accepts them. + +2008-07-16 Jon Foster + + * src/pfr/pfrdrivr.c (pfr_get_advance): Fix off-by-one error. + + * src/base/ftcalc.c (FT_MulFix): Fix portability issue. + + * src/sfnt/ttpost.c (MAC_NAME) [!FT_CONFIG_OPTION_POSTSCRIPT_NAMES]: + Fix compiler warning. + +2008-07-16 Werner Lemberg + + Handle CID-keyed fonts wrapped in an SFNT (with cmaps) correctly. + + * src/cff/cffload.c (cff_font_load): Pass `pure_cff'. + Invert sids table only if `pure_cff' is set. + * src/cff/cffload.h: Udpated. + + * src/cff/cffobjs.c (cff_face_init): Updated. + Set FT_FACE_FLAG_CID_KEYED only if pure_cff is set. + + * docs/CHANGES: Updated. + +2008-07-09 Werner Lemberg + + * src/truetype/ttpload.c (tt_face_load_loca): Handle buggy fonts + where num_locations < num_glyphs. Problem reported by Ding Li. + +2008-07-05 Werner Lemberg + + Since FreeType uses `$(value ...)', we now need GNU make 3.80 or + newer. This fixes Savannah bug #23648. + + * configure: zsh doesn't like ${1+"$@"}. + Update needed GNU make version. + * builds/toplevel.mk: Check for `$(eval ...)'. + * docs/INSTALL.GNU, docs/INSTALL.CROSS, docs/INSTALL.UNIX: Document + it. + +2008-07-04 Werner Lemberg + + * src/raster/ftraster.c (Draw_Sweep): If span is smaller than one + pixel, only check for dropouts if neither start nor end point lies + on a pixel center. This fixes Savannah bug #23762. + +2008-06-29 Werner Lemberg + + * Version 2.3.7 released. + ========================= + + + Tag sources with `VER-2-3-7'. + + * docs/CHANGES, docs/VERSION.DLL: Update documentation and bump + version number to 2.3.7. + + * README, Jamfile (RefDoc), builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualce/index.html, + builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj: s/2.3.6/2.3.7/, s/236/237/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 7. + + * builds/unix/configure.raw (version_info): Set to 9:18:3. + + * docs/release: Updated. + +2008-06-28 Werner Lemberg + + * src/ftglyph.c (FT_Matrix_Multiply, FT_Matrix_Invert): Move to... + * src/ftcalc.c: Here. This fixes Savannah bug #23729. + +2008-06-27 Werner Lemberg + + * src/raster/ftraster.c (Vertical_Sweep_Drop, Horizontal_Sweep_Drop, + Horizontal_Gray_Sweep_Drop): Test for intersections which + degenerate to a single point can be ignored; this has been confirmed + by Greg Hitchcock from Microsoft. (This was commented out code.) + +2008-06-26 Werner Lemberg + + Improve navigation in API reference. + + * src/tools/docmaker/tohtml.py (html_header_3): Renamed to... + (html_header_6): This. + (html_header_3, html_header_3i, html_header_4, html_header_5, + html_header_5t): New strings. + (toc_footer_start, toc_footer_end): New strings. + (HtmlFormatter::html_header): Updated. + (HtmlFormatter::html_index_header, HtmlFormatter::html_toc_header): + New strings. + (HtmlFormatter::index_enter): Use `html_index_header'. + (HtmlFormatter::index_exit): Print `html_footer'. + (HtmlFormatter::toc_enter): Use `html_toc_header'. + (HtmlFormatter::toc_exit): Print proper footer. + + Convert ~ to non-breakable space. + + * src/tools/docmaker/tohtml.py (make_html_para): Implement it. + Update header files accordingly. + +2008-06-24 suzuki toshiya + + * builds/unix/configure.raw: Check type `ResourceIndex' explicitly + and define HAVE_TYPE_RESOURCE_INDEX if it is defined. Mac OS X 10.5 + bundles 10.4u SDK with MAC_OS_X_VERSION_10_5 macro but without + ResourceIndex type definition. The macro does not inform the type + availability. + * src/base/ftmac.c: More parentheses are inserted to clarify the + conditionals to disable legacy APIs in `10.5 and later' cases. If + HAVE_TYPE_RESOURCE_INDEX is not defined, ResourceIndex is defined. + +2008-06-24 Werner Lemberg + + * src/truetype/ttinterp.c (Ins_SCANTYPE): Don't check rendering + mode. + + * src/raster/ftraster.c (Render_Glyph, Render_Gray_Glyph, + Draw_Sweep): No-dropout mode is value 2, not value 0. + (Draw_Sweep): Really skip dropout handling for no-dropout mode. + +2008-06-24 Werner Lemberg + + * src/psaux/psobjs.c (t1_builder_close_contour): Don't add contour + if it consists of one point only. Based on a patch from Savannah + bug #23683 (from John Tytgat). + +2008-06-22 Werner Lemberg + + * src/truetype/ttgload.c (TT_Load_Glyph): Protect bytecode stuff + with IS_HINTED. + + * docs/CHANGES: Updated. + +2008-06-22 suzuki toshiya + + * builds/unix/configure.raw: If CFLAGS has `-isysroot XXX' option + but LDFLAGS does not, import it to LDFLAGS. The option is used to + specify non-default SDK on Mac OS X (e.g., universal binary SDK for + Mac OS X 10.4 on PowerPC platform). Although Apple TechNote 2137 + recommends to add the option only to CFLAGS, LDFLAGS should include + it because libfreetype.la is built with -no-undefined. This fixes a + bug reported by Ryan Schmidt in MacPorts, + http://trac.macports.org/ticket/15331. + +2008-06-21 Werner Lemberg + + Enable access to the various dropout rules of the B&W rasterizer. + Pass dropout rules from the TT bytecode interpreter to the + rasterizer. + + * include/freetype/ftimage.h (FT_OUTLINE_SMART_DROPOUTS, + FT_OUTLINE_EXCLUDE_STUBS): New flags for FT_Outline. + + * src/raster/ftraster.c (Vertical_Sweep_Drop, Horizontal_Sweep_Drop, + Horizontal_Gray_Sweep_Drop): Use same mode numbers as given in the + OpenType specification. + Fix mode 4 computation. + (Render_Glyph, Render_Gray_Glyph): Handle new outline flags. + + * src/truetype/ttgload.c (TT_Load_Glyph) Convert scan conversion + mode to FT_OUTLINE_XXX flags. + + * src/truetype/ttinterp.c (Ins_SCANCTRL): Enable ppem check. + +2008-06-19 Werner Lemberg + + * src/cff/cffobjs.c (cff_face_init): Compute final + `dict->units_per_em' value before assigning it to + `cffface->units_per_EM'. Otherwise, CFFs without subfonts are + scaled incorrectly if the font matrix is non-standard. This fixes + Savannah bug #23630. + + * docs/CHANGES: Updated. + +2008-06-19 Werner Lemberg + + * src/type/t1objs.c (T1_Face_Init): Slightly improve algorithm fix + from 2008-06-19. + +2008-06-18 Werner Lemberg + + * src/type/t1objs.c (T1_Face_Init): Fix change from 2008-03-21. + Reported by Peter Weilbacher . + + * docs/CHANGES: Updated. + +2008-06-15 George Williams + + * src/otvalid/otvgpos.c (otv_MarkBasePos_validate): Set + `valid->extra2' to 1. This is undocumented in the OpenType 1.5 + specification. + +2008-06-15 Werner Lemberg + + * src/base/ftcalc.c (FT_MulFix) : Protect registers correctly + from clobbering. Patch from Savannah bug report #23556. + + * docs/CHANGES: Document it. + +2008-06-10 Werner Lemberg + + * autogen.sh: Add option `--install' to libtoolize. + +2008-06-10 Werner Lemberg + + * Version 2.3.6 released. + ========================= + + + Tag sources with `VER-2-3-6'. + + * docs/CHANGES, docs/VERSION.DLL: Update documentation and bump + version number to 2.3.6. + + * README, Jamfile (RefDoc), builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualce/index.html, + builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj: s/2.3.5/2.3.6/, s/235/236/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 6. + + * builds/unix/configure.raw (version_info): Set to 9:17:3. + + + * include/freetype/internal/psaux.h (T1_BuilderRec): Remove `scale_x' + and `scale_y'. + * src/cff/cffgload.h (CFF_Builder): Remove `scale_x' and `scale_y'. + + + * src/cff/cffparse.c: Include FT_INTERNAL_DEBUG_H. + * src/cff/cffobjs.h: Include FT_INTERNAL_POSTSCRIPT_HINTS_H. + +2008-06-10 Werner Lemberg + + * src/base/ftobjs.c (open_face): Check `clazz->init_face' and + `clazz->done_face'. + +2008-06-09 VaDiM + + Support debugging on WinCE. From Savannah patch #6536; this fixes + bug #23497. + + * builds/win32/ftdebug.c (OutputDebugStringEx): New function/macro + as a replacement for OutputDebugStringA (which WinCE doesn't have). + Update all callers. + (ft_debug_init) [_WIN32_CE]: WinCE apparently doesn't have + environment variables. + +2008-06-09 Werner Lemberg + + * README.CVS: Updated. + + * builds/unix/configure.raw, builds/unix/freetype-config.in: Updated + for newer versions of autoconf and friends. + +2008-06-08 Werner Lemberg + + * src/type1/t1parse.h (T1_ParserRec): Make `base_len' and + `private_len' unsigned. + + * src/type1/t1parse.c (read_pfb_tag): Make `asize' unsigned and read + it as such. + (T1_New_Parser, T1_Get_Private_Dict): Make `size' unsigned. + + + * src/base/ftstream.c (FT_Stream_Skip): Reject negative values. + + + * src/type1/t1load.c (parse_blend_design_positions): Check `n_axis' + for sane value. + Fix typo. + + + * src/psaux/psobjs.c (ps_table_add): Check `idx' correctly. + + + * src/truetype/ttinterp (Ins_SHC): Use BOUNDS() to check + `last_point'. + + + * src/sfnt/ttload.c (tt_face_load_max_profile): Limit + `maxTwilightPoints'. + +2008-06-06 Werner Lemberg + + * src/truetype/ttinterp.c (Ins_IP): Handle case `org_dist == 0' + correctly. This fixes glyphs `t' and `h' of Arial Narrow at 12ppem. + +2008-06-03 Werner Lemberg + + * include/freetype/ftcache.h (FTC_FaceID): Change type back to + FT_Pointer. Reported by Ian Britten . + +2008-06-02 Werner Lemberg + + Emit header info for defined FreeType objects in reference. + + * src/tools/docmaker/content.py (re_header_macro): New regexp. + (ContentProcessor::__init__): Initialize new dictionary `headers'. + (DocBlock::__init__): Collect macro header definitions. + + * src/tools/docmaker/tohtml.py (header_location_header, + header_location_footer): New strings. + (HtmlFormatter::__init__): Pass `headers' dictionary. + (HtmlFormatter::print_html_field): Don't emit paragraph tags. + (HtmlFormatter::print_html_field_list): Emit empty paragraph. + (HtmlFormatter::block_enter): Emit header info. + +2008-06-01 Werner Lemberg + + * include/freetype/config/ftheader.h (FT_UNPATENTED_HINTING_H, + FT_INCREMENTAL_H): Added. + +2008-05-28 Werner Lemberg + + * src/tools/docmaker/sources.py (SourceBlock::__init__): While + looking for markup tags, return immediately as soon a single one is + found. + +2008-05-28 Werner Lemberg + + * src/truetype/ttinterp.c (Ins_MD): The MD instruction also uses + original, unscaled input values. Confirmed by Greg Hitchcock from + Microsoft. + +2008-05-27 Werner Lemberg + + * src/tools/docmaker/tohtml.py (block_footer_start, + block_footer_middle): Beautify output. + +2008-05-25 Werner Lemberg + + * src/raster/ftraster.c (fc_black_render): Return 0 when we are + trying to render into a zero-width/height bitmap, not an error code. + + * src/truetype/ttgload.c (load_truetype_glyph): Move initialization + of the graphics state for subglyphs to... + (TT_Hint_Glyph): This function. + Hinting instructions for a composite glyph apparently refer to the + just hinted subglyphs, not the unhinted, unscaled outline. This + seems to fix Savannah bugs #20973 and (at least partially) #23310. + +2008-05-20 suzuki toshiya + + * src/base/ftmac.c (FT_New_Face_From_Suitcase): Check if valid + `aface' is returned by FT_New_Face_From_FOND(). The patch was + proposed by an anonymous reporter of Savannah bug #23204. + +2008-05-18 Werner Lemberg + + * src/pshinter/pshalgo.c (ps_hints_apply): Reset scale values after + correction for pixel boundary. Without this patch, the effect can + be cumulative under certain circumstances, making glyphs taller and + taller after each call. This fixes Savannah bug #19976. + +2008-05-18 Werner Lemberg + + * src/base/ftdebug.c (FT_Message, FT_Panic): Send output to stderr. + This fixes Savannah bug #23280. + + * docs/CHANGES: Updated. + +2008-05-18 David Turner + + * src/psnames/psmodule.c (ft_wgl_extra_unicodes, + ft_wgl_extra_glyph_names, ft_wgl_extra_glyph_name_offsets, + ps_check_wgl_name, ps_check_wgl_unicode): Use `static' to make + declarations non-global. + + * src/type1/t1load.c: Add missing comment. + +2008-05-17 Sam Hocevar + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Handle zero-contour + glyphs correctly. Patch from Savannah bug #23277. + +2008-05-16 Werner Lemberg + + * docs/CHANGES: Updated. + +2008-05-16 Sergey Tolstov + + Improve support for WGL4 encoded fonts. + + * src/psnames/psmodule.c (WGL_EXTRA_LIST_SIZE): New macro. + (ft_wgl_extra_unicodes, ft_wgl_extra_glyph_names, + ft_wgl_extra_glyph_name_offsets): New arrays. + (ps_check_wgl_name, ps_check_wgl_unicode): New functions. + (ps_unicodes_init): Use them to add additional Unicode mappings. + +2008-05-15 Werner Lemberg + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings) + : `closepath' without a path is a no-op, not an error + (cf. the PS reference manual). + + Reported by Martin McBride. + +2008-05-15 Werner Lemberg + + * builds/toplevel.mk (CONFIG_GUESS, CONFIG_SUB): Updated. + +2008-05-15 Werner Lemberg + + * src/type1/t1load.c (parse_subrs): Accept fonts with a subrs array + which contains a single but empty entry. This is technically + invalid (since it must end with `return'), but... + + Reported by Martin McBride. + +2008-05-14 Werner Lemberg + + Finish fix of scaling bug of CID-keyed CFF subfonts. + + * include/freetype/internal/ftcalc.h, src/base/ftcalc.c + (FT_Matrix_Multiply_Scaled, FT_Vector_Transform_Scaled): New + functions. + + * src/cff/cffobjs.h (CFF_Internal): New struct. It is used to + provide global hinting data for both the top-font and all subfonts + (with proper scaling). + + * src/cff/cffobjs.c (cff_make_private_dict): New function, using + code from `cff_size_init'. + (cff_size_init, cff_size_done, cff_size_select, cff_size_request): + Use CFF_Internal and handle subfonts. + (cff_face_init): Handle top-dict and subfont matrices correctly; + apply some heuristic in case of unlikely matrix concatenation + results. This has been discussed with people from Adobe (thanks + goes mainly to David Lemon) who confirm that the CFF specs are fuzzy + and not correct. + + * src/cff/cffgload.h (cff_decoder_prepare): Add `size' argument. + + * src/cff/cffgload.c (cff_builder_init): Updated. + (cff_decoder_prepare): Handle hints globals for subfonts. + Update all callers. + (cff_slot_load): Handling scaling of subfonts properly. + + * src/cff/cffparse.c (cff_parse_fixed_dynamic): New function. + (cff_parse_font_matrix): Use it. + + * src/cff/cfftypes.h (CFF_FontDictRec): Make `units_per_em' + FT_ULong. + + * docs/CHANGES: Document it. + +2008-05-13 Werner Lemberg + + * src/winfonts/winfnt.c (fnt_face_get_dll_font, FNT_Face_Init): + Handle case `face_index < 0'. + * docs/CHANGES: Document it. + +2008-05-04 Werner Lemberg + + First steps to fix the scaling bug of CID-keyed CFF subfonts, + reported by Ding Li on 2008/03/28 on freetype-devel. + + * src/base/cff/cffparse.c (power_tens): New array. + (cff_parse_real): Rewritten to introduce a fourth parameter which + returns the `scaling' of the real number so that we have no + precision loss. This is not used yet. + Update all callers. + (cff_parse_fixed_thousand): Replace with... + (cff_parse_fixed_scaled): This function. Update all callers. + +2008-05-03 Werner Lemberg + + * src/base/ftobjs.c (FT_Load_Glyph): Call the auto-hinter without + transformation since it recursively calls FT_Load_Glyph. This fixes + Savannah bug #23143. + +2008-04-26 Werner Lemberg + + * include/freetype/internal/psaux.h (T1_BuilderRec): Mark `scale_x' + and `scale_y' as obsolete since they aren't used. + * src/psaux/psobjs.c (t1_builder_init): Updated. + + * src/cff/cffgload.h (CFF_Builder): Mark `scale_x' and `scale_y' as + obsolete since they aren't used. + * src/cff/cffgload.c (cff_builder_init): Updated. + +2008-04-14 Werner Lemberg + + * src/pcf/pcfdrivr.c (PCF_Face_Init): Protect call to + `FT_Stream_OpenLZW' with `FT_CONFIG_OPTION_USE_LZ'. From Savannah + bug #22909. + +2008-04-13 Werner Lemberg + + * src/psaux/psconv.c (PS_Conv_ToFixed): Increase precision if + integer part is zero. + +2008-04-01 Werner Lemberg + + Fix compilation with g++ 4.1 (with both `single' and `multi' + targets). + + * src/base/ftobjs.c (FT_Open_Face): Don't define a variable in block + which is crossed by a `goto'. + + * src/otvalid/otvalid.h (otv_MATH_validate): Add prototype. + +2008-03-31 Werner Lemberg + + Fix support for subsetted CID-keyed CFFs. + + * include/freetype/freetype.h (FT_FACE_FLAG_CID_KEYED, + FT_IS_CID_KEYED): New macros. + + * src/cff/cffobjs.c (cff_face_init): Set number of glyphs to the + maximum CID value in CID-keyed CFFs. + Handle FT_FACE_FLAG_CID_KEYED flag. + + * docs/CHANGES: Document it. + + + Fix CFF font matrix calculation and improve precision. + + * src/cff/cffparse.c (cff_parse_real): Increase precision if integer + part is zero. + (cff_parse_font_matrix): Simplify computation of `units_per_em'; + this prevents overflow also. + + + Support FT_Get_CID_Registry_Ordering_Supplement for PS CID fonts. + + * src/cid/cidriver.c: Include FT_SERVICE_CID_H. + (cid_get_ros): New function. + (cid_service_cid_info): New service structure. + (cid_services): Register it. + +2008-03-23 Werner Lemberg + + Adjustments for Visual C++ 8.0, as reported by Rainer Deyke. + + * builds/compiler/visualc.mk (CFLAGS): Remove /W5. + (ANSIFLAGS): Add _CRT_SECURE_NO_DEPRECATE. + +2008-03-21 Laurence Darby + + * src/type1/t1objs.c (T1_Face_Init): Use `/Weight'. Patch from + Savannah bug #22675. + +2008-03-13 Derek Clegg + + * src/truetype/ttgxvar.c (TT_Get_MM_Var): Fix named style loop. + Patch from Savannah bug #22541. + +2008-03-03 Masatoshi Kimura + + * src/sfnt/ttcmap.c (tt_cmap14_char_map_nondef_binary, + tt_cmap14_find_variant): Return correct value. + (tt_cmap14_variant_chars): Fix check for `di'. + +2008-02-29 Wermer Lemberg + + * docs/CHANGES: Updated. + +2008-02-29 Wolf + + Add build support for symbian platform. From Savannah bug #22440. + + * builds/symbian/*: New files. + +2008-02-21 suzuki toshiya + + * src/base/ftmac.c (parse_fond): Fix a bug of PostScript font name + synthesis. For any face of a specified FOND, always the name for + the first face was used. Except of a FOND that refers multiple + Type1 font files, wrong synthesized font names are not used at all, + so this is an invisible bug. A few limit checks are added too. + + * builds/mac/ftmac.c: Ditto. + +2008-02-21 suzuki toshiya + + * builds/unix/configure.raw: Split compiler option to link Carbon + frameworks to one option for CoreServices framework and another + option for ApplicationServices framework. The split options can be + managed by GNU libtool to avoid unrequired duplication when FreeType + is linked with other applications. Suggested by Daniel Macks, + Savannah bug #22366. + +2008-02-18 Victor Stinner + + * src/truetype/ttinterp.c (Ins_IUP): Check number of points. Fix + from Savannah bug #22356. + +2008-02-17 Jonathan Blow + + * src/autofit/afloader.c (af_loader_load_g, af_loader_load_glyph): + Check for valid callback pointers. + +2008-02-15 suzuki toshiya + + * src/base/ftmac.c (FT_New_Face_From_SFNT): Check the sfnt resource + handle by its value instead of ResError(), fix provided by Deron + Kazmaier. According to the Resource Manager Reference, + GetResource(), Get1Resource(), GetNamedResource(), + Get1NamedResource() and RGetResource() set noErr but return NULL + handle when they can not find the requested resource. These + functions never return undefined values, so it is sufficient to + check if the handle is not NULL. + + * builds/mac/ftmac.c (FT_New_Face_From_SFNT): Ditto. + +2008-02-14 suzuki toshiya + + * src/base/ftbase.c: is replaced by "ftmac.c" as other + inclusion styles. Now it always includes src/base/ftmac.c; + builds/mac/ftmac.c is never included in any configuration. + + * builds/unix/configure.raw: Print warning if configure is executed + with options to specify Carbon functionalities explicitly. + + * docs/INSTALL.MAC: Note that legacy builds/mac/ftmac.c is not + included automatically and manual replacement is required. + +2008-02-11 Werner Lemberg + + * builds/modules.mk (CLOSE_MODULE, REMOVE_MODULE), builds/detect.mk + (dos_setup), builds/freetype.mk (clean_project_dos, + distclean_project_dos): Don't use \ but $(SEP). Reported by Duncan + Murdoch. + +2008-01-18 Sylvain Pasche + + * src/base/ftlcdfil.c (_ft_lcd_filter_legacy): Updated comment to + mention intra-pixel algorithm. + + * include/freetype/freetype.h (FT_Render_Mode): Mention that + FT_Library_SetLcdFilter can be used to reduce fringes. + +2008-01-16 Werner Lemberg + + * src/raster/ftraster.c (ft_black_render): Check `outline' before + using it. Reported by Allan Yang. + +2008-01-12 Werner Lemberg + + * src/raster/ftraster.c (FT_CONFIG_OPTION_5_GRAY_LEVELS): Remove. + +2008-01-12 Allan Yang, Jian Hua - SH + + * src/raster/ftraster.c (ft_black_init) + [FT_RASTER_OPTION_ANTI_ALIASING]: Fix compilation. + +2008-01-10 Werner Lemberg + + * src/truetype/ttgload.c (load_truetype_glyph): Handle the case + where the number of contours in a simple glyph is zero (and which + does contain an entry in the `glyf' table). This fixes Savannah bug + #21990. + +2008-01-04 suzuki toshiya + + Formatting suggested by Sean McBride. + + * builds/mac/ftmac.c: Formatting (tab expanded). + * src/autofit/afindic.c: Ditto. + * src/base/ftcid.c: Ditto. + * src/base/ftmac.c: Ditto. + +2007-12-30 Werner Lemberg + + * src/smooth/ftgrays.c (gray_raster_render): Check `outline' + correctly. + +2007-12-21 suzuki toshiya + + Improvement of POSIX resource-fork accessor to load unsorted + references in a resource. In HelveLTMM (resource-fork PostScript + Type1 font bundled with Mac OS X since 10.3.x), the appearance order + of PFB chunks is not sorted; sorting the chunks by reference IDs is + required. + + * include/freetype/internal/ftrfork.h (FT_RFork_Ref): New structure + type to store a pair of reference ID and offset to the chunk. + + * src/base/ftrfork.c (ft_raccess_sort_ref_by_id): New function to + sort FT_RFork_Ref by their reference IDs. + + (FT_Raccess_Get_DataOffsets): Returns an array of offsets that is + sorted by reference ID. + +2007-12-14 Werner Lemberg + + * src/cff/cffparse.c (cff_parse_real): Don't apply `power_ten' + division too early; otherwise the most significant digit(s) of the + final result are lost as the value is truncated to an integer. This + fixes Savannah bug #21794 (where the patch has been posted too). + +2007-12-06 Fix <4d876b82@gmail.com> + + Pass options from one configure script to another as-is (not + expanded). This is needed for options like + --includedir='${prefix}/include'. + + * builds/unix/detect.mk, configure: Prevent argument expansion in + call to the (real) `configure' script. + +2007-12-06 Werner Lemberg + + * src/truetype/ttgload.c (load_truetype_glyph): Fix compilation if + TT_USE_BYTECODE_INTERPRETER isn't defined. + +2007-12-06 Werner Lemberg + + There exist CFFs which contain opcodes for the Type 1 operators + `hsbw' and `closepath' which are both invalid in Type 2 charstrings. + However, it doesn't harm to support them. + + * src/cff/cffgload.c (CFF_Operator): Add `cff_op_hsbw' and + `cff_op_closepath.' + (cff_argument_counts): Ditto. + + (cff_decoder_parse_charstrings): Handle Type 1 opcodes 9 (closepath) + and 13 (hsbw) which are invalid in Type 2 charstrings. + +2007-12-06 suzuki toshiya + + * src/base/ftrfork.c (raccess_guess_darwin_newvfs): New function to + support new pathname syntax `..namedfork/rsrc' to access a resource + fork on Mac OS X. The legacy syntax `/rsrc' does not work on + case-sensitive HFS+. + (raccess_guess_darwin_hfsplus): Fix a bug in the calculation of + buffer size to store a pathname. + * include/freetype/internal/ftrfork.h: Increment the number of + resource fork guessing rule. + +2007-12-06 suzuki toshiya + + * builds/unix/configure.raw: Improve the compile tests to search + Carbon functions. + * builds/mac/ftmac.c: Import fixes for Carbon incompatibilities + proposed by Sean McBride from src/base/ftmac.c (see 2007-11-16). + +2007-12-06 suzuki toshiya + + The documents and comments for Mac OS X are improved by Sean + McBride. + + * src/base/ftmac.c: Fix a comment. + * include/freetype/ftmac.h: Ditto. + * docs/INSTALL.MAC: Improve English and add comment on lowest + system version specified by MACOSX_DEPLOYMENT_TARGET. + +2007-12-04 Werner Lemberg + + * src/cff/cffload.c (cff_subfont_load): Don't use logical OR to + concatenate error codes. + * src/sfnt/ttsbit.c (Load_SBit_Range): Ditto. + +2007-12-04 Graham Asher + + * src/truetype/ttobjs.c (tt_face_init): Don't use logical OR to + concatenate error codes. + +2007-12-04 Sean McBride + + * src/pfr/pfrgload.c (pfr_glyph_load_compound): Remove compiler + warning. + +2007-11-20 suzuki toshiya + + Fix MacOS legacy font support by Masatake Yamato on Mac OS X. It is + not working since 2.3.5. In FT_Open_New(), if FT_New_Stream() + cannot mmap() the specified file and cannot seek to head of the + specified file, it returns NULL stream and FT_Open_New() returns the + error immediately. On MacOS, most legacy MacOS fonts fall into such + a scenario because their data forks are zero-sized and cannot be + sought. To proceed to guessing of resource fork fonts, the + functions for legacy MacOS font must properly handle the NULL stream + returned by FT_New_Stream(). + + * src/base/ftobjs.c (IsMacBinary): Return error + FT_Err_Invalid_Stream_Operation immediately when NULL stream is + passed. + (FT_Open_Face): Even when FT_New_Stream() returns an error, proceed + to fallback. Originally, legacy MacOS font is tested in the cases + of FT_Err_Invalid_Stream_Operation (occurs when data fork is empty) + or FT_Err_Unknown_File_Format (occurs when AppleSingle header or + .dfont header is combined). Now the case of + FT_Err_Cannot_Open_Stream is included. + + * src/base/ftrfork.c (FT_Raccess_Guess): When passed stream is NULL, + skip FT_Stream_Seek(), which seeks to the head of stream, and + proceed to unit testing of raccess_guess_XXX(). FT_Stream_Seek() + for a NULL stream causes a Bus error on Mac OS X. + (raccess_guess_apple_double): Return FT_Err_Cannot_Open_Stream + immediately if passed stream is NULL. + (raccess_guess_apple_single): Ditto. + +2007-11-16 suzuki toshiya + + Fix for Carbon incompatibilities since Mac OS X 10.5, + proposed by Sean McBride. + + * doc/INSTALL.MAC: Comment on MACOSX_DEPLOYMENT_TARGET. + + * include/freetype/ftmac.h: Deprecate FT_New_Face_From_FOND and + FT_GetFilePath_From_Mac_ATS_Name. Since Mac OS X 10.5, calling + Carbon functions from a forked process is classified as unsafe + by Apple. All Carbon-dependent functions should be deprecated. + + * src/base/ftmac.c: Use essential header files + and + instead of + all-in-one header file . + + Include and replace HFS_MAXPATHLEN by Apple + genuine macro PATH_MAX. + + Add fallback macro for kATSOptionFlagsUnRestrictedScope which + is not found in Mac OS X 10.0. + + Multi-character constants ('POST', 'sfnt' etc) are replaced by + 64bit constants calculated by FT_MAKE_TAG() macro. + + For the index in the segment of resource fork, new portable + type ResourceIndex is introduced for better compatibility. + This type is since Mac OS X 10.5, so it is defined as short + when built on older platforms. + + (FT_ATSFontGetFileReference): If build target is only the systems + 10.5 and newer, it calls Apple genuine ATSFontGetFileReference(). + + (FT_GetFile_From_Mac_ATS_Name): Return an error if system is 10.5 + and newer or 64bit platform, because legacy type FSSpec type is + removed completely. + + (FT_New_Face_From_FSSpec): Ditto. + +2007-11-01 Werner Lemberg + + * src/sfnt/sfobjs.c (sfnt_done_face): Check `sfnt' everywhere. This + fixes Savannah bug #21485. + +2007-10-29 Daniel Svoboda + + * src/winfonts/winfnt.c (FNT_Face_Init): Check first that the driver + can handle the font at all, then check `face_index'. Otherwise, the + driver might return the wrong error code. This fixes Savannah bug + #21468. + +2007-10-21 Werner Lemberg + + * src/sfnt/sfobjs.c (sfnt_load_face): Support bit 9 and prepare + support for bit 8 of the `fsSelection' field in the `OS/2' table. + MS is already using this; hopefully, this becomes part of OpenType + 1.5. + Prepare also support for `name' IDs 21 (WWS_FAMILY) and 22 + (WWS_SUBFAMILY). + +2007-10-20 Werner Lemberg + + * src/tools/docmaker/tohtml.py (html_header_2): Fix typo. + Add `td.left' element to CSS. + (toc_section_enter): Use it. + +2007-10-18 David Turner + + * include/freetype/freetype.h, src/base/ftobjs.c: Rename API + functions related to cmap type 14 support to the + `FT_Object_ActionName' scheme: + + FT_Get_Char_Variant_index -> FT_Face_GetCharVariantIndex + FT_Get_Char_Variant_IsDefault -> FT_Face_GetCharVariantIsDefault + FT_Get_Variant_Selectors -> FT_Face_GetVariantSelectors + FT_Get_Variants_Of_Char -> FT_Face_GetVariantsOfChar + FT_Get_Chars_Of_Variant -> FT_Face_GetCharsOfVariant + + Update documentation accordingly. + + * src/sfnt/ttcmap.c: Stronger cmap 14 validation. + Make the code a little more consistent with FreeType coding + conventions and modify the cmap14 functions that returned a newly + allocated array to use a persistent vector from the TT_CMap14 object + instead. + + (TT_CMap14Rec): Provide array and auxiliary data for result. + (tt_cmap14_done, tt_cmap14_ensure): New functions. + + (tt_cmap14_init, tt_cmap14_validate, tt_cmap14_char_map_def_binary, + tt_cmap14_char_map_nondef_binary, tt_cmap14_find_variant, + tt_cmap14_char_var_index, tt_cmap14_variants, + tt_cmap14_char_variants, tt_cmap14_def_char_count, + tt_cmap14_get_def_chars, tt_cmap14_get_nondef_chars, + tt_cmap14_variant_chars, tt_cmap14_class_rec): Updated and improved. + +2007-10-15 George Williams + + Add support for cmap type 14. + + * devel/ftoption.h, include/freetype/config/ftoption.h + (TT_CONFIG_CMAP_FORMAT_14): New macro. + + * include/freetype/internal/ftobjs.h (FT_CMap_CharVarIndexFunc, + FT_CMap_CharVarIsDefaultFunc, FT_CMap_VariantListFunc, + FT_CMap_CharVariantListFunc, FT_CMap_VariantCharListFunc): New + support function prototypes. + (FT_CMap_ClassRec): Add them. + Update all users. + + * include/freetype/ttnameid.h (TT_APPLE_ID_VARIANT_SELECTOR): New + macro. + + * include/freetype/freetype.h (FT_Get_Char_Variant_Index, + FT_Get_Char_Variant_IsDefault, FT_Get_Variant_Selectors, + FT_Get_Variants_Of_Char, FT_Get_Chars_Of_Variant): New API + functions. + + * src/base/ftobjs.c (find_variant_selector_charmap): New auxiliary + function. + (FT_Set_Charmap): Disallow cmaps of type 14. + (FT_Get_Char_Variant_Index, FT_Get_Char_Variant_IsDefault, + FT_Get_Variant_Selectors, FT_Get_Variants_Of_Char, + FT_Get_Chars_Of_Variant): New API functions. + + * src/sfnt/ttcmap.c (TT_PEEK_UINT24, TT_NEXT_UINT24): New macros. + + (TT_CMap14Rec, tt_cmap14_init, tt_cmap14_validate, + tt_cmap14_char_index, tt_cmap14_char_next, tt_cmap14_get_info, + tt_cmap14_char_map_def_binary, tt_cmap14_char_map_nondef_binary, + tt_cmap14_find_variant, tt_cmap14_char_var_index, + tt_cmap14_char_var_isdefault, tt_cmap14_variants, + tt_cmap14_char_variants, tt_cmap14_def_char_count, + tt_cmap14_get_def_chars, tt_cmap14_get_nondef_chars, + tt_cmap14_variant_chars, tt_cmap14_class_rec): New functions and + structures for cmap 14 support. + (tt_cmap_classes): Register tt_cmap14_class_rec. + (tt_face_build_cmaps): One more error message. + + * docs/CHANGES: Mention cmap 14 support. + +2007-10-01 Werner Lemberg + + * src/base/ftobjs.c (find_unicode_charmap): If search for a UCS-4 + charmap fails, do the loop again while searching a UCS-2 charmap. + This favours MS charmaps over Apple ones. + +2007-08-29 suzuki toshiya + + * src/base/ftmac.c: Introduction of abstract `short' data types, + ResFileRefNum and ResID. These types were introduced for Copland, + then backported to MPW. The variables exchanged with FileManager + QuickDraw frameworks are redefined by these data types. Patch was + proposed by Sean McBride. + * builds/mac/ftmac.c: Ditto. + +2007-08-18 Werner Lemberg + + * src/otvalid/otvcmmn.c (otv_x_y_ux_sy): Skip context glyphs. Found + by Imran Yousaf. Fixes Savannah bug #20773. + + (otv_Lookup_validate): Correct handling of LookupType. Found by + Imran Yousaf. Fixes Savannah bug #20782. + +2007-08-17 George Williams + + * src/otvalid/otvgsub.c (otv_SingleSubst_validate): Fix handling of + SingleSubstFormat1. + +2007-08-11 suzuki toshiya + + * builds/unix/configure.raw: Fix a bug which sets CC_BUILD by + ${build-gcc} (unchecked) instead of by ${build}-gcc (checked). + Found by Ryan Hill. + +2007-08-11 George Williams + + * src/otvalid/otvcommn.c, src/otvalid/otvcommn.h + (otv_Coverage_validate): Add fourth argument to pass an expected + count value. Update all users. + Check glyph IDs. + (otv_ClassDef_validate): Check `StartGlyph'. + + * src/otvalid/otvgsub.c (otv_SingleSubst_validate): More glyph ID + checks. + + * src/otvalid/otvmath.c (otv_MathConstants_validate): There are only + 56 constants. + (otv_GlyphAssembly_validate, otv_MathGlyphConstruction_validate): + Check glyph IDs. + +2007-08-08 Werner Lemberg + + * src/otvalid/otvbase.c, src/otvalid/otvcommn.c, + src/otvalid/otvgdef.c, src/otvalid/otvgpos.c, src/otvalid/otvgsub.c, + src/otvalid/otvjstf.c: s/FT_INVALID_DATA/FT_INVALID_FORMAT/ where + appropriate. Reported by George. + + * include/freetype/internal/fttrace.h: Define `trace_otvmath'. + + * src/otvalid/rules.mk (OTV_DRV_SRC): Add otvmath.c. + + * docs/CHANGES: Updated. + +2007-08-08 George Williams + + Add `MATH' validating support to otvalid module. + + * include/freetype/tttags.h (TTAG_MATH): New macro. + * include/freetype/ftotval.h (FT_VALIDATE_MATH): New macro. + (FT_VALIDATE_OT): Updated. + + * src/otvalid/otmath.c: New file. + + * src/otvalid/otvalid.c: Include otvmath.c. + * src/otvalid/otvmod.c (otv_validate): Handle `MATH' table. + +2007-08-04 Werner Lemberg + + * builds/unix/configure.raw: Add call to AC_LIBTOOL_WIN32_DLL. + Fixes Savannah bug #20686. + +2007-08-03 Werner Lemberg + + * src/psnames/psmodule.c: Fix usage of + FT_CONFIG_OPTION_POSTSCRIPT_NAMES macro. Reported by Graham Asher. + +2007-07-31 suzuki toshiya + + * src/base/ftmac.c (open_face_from_buffer): The argument + `driver_name' is typed as `const char*' to match with the + callers in FT_New_Face_From_LWFN and FT_New_Face_From_SFNT. + This is same with open_face_from_buffer in src/base/ftobjs.c. + Found and fixed by Sean McBride. + +2007-07-28 Werner Lemberg + + * src/raster/ftraster.c (count_table): Make it conditional. + * src/base/ftobjs.c (FT_New_Library): Check FT_RENDER_POOL_SIZE with + a preprocessor statement. + +2007-07-27 Werner Lemberg + + * src/base/ftoutln.c (FT_Outline_Translate): Check `outline' before + first usage. From Savannah patch #6115. + +2007-07-16 Werner Lemberg + + * docs/CHANGES: Updated. + +2007-07-16 Derek Clegg + + Add new service for getting the ROS from a CID font. + + * include/freetype/config/ftheader.h (FT_CID_H): New macro. + * include/freetype/ftcid.h: New file. + + * include/freetype/internal/ftserv.h (FT_SERVIVE_CID_H): New macro. + * include/freetype/internal/services/svcid.h: New file. + + * src/base/ftcid.c: New file. + + * src/cff/cffdrivr.c: Include FT_SERVICE_CID_H. + (cff_get_ros): New function. + (cff_service_cid_info): New service structure. + (cff_services): Register it. + + * src/cff/cffload.c (cff_font_done): Free registry and ordering. + + * src/cff/cfftypes.h (CFF_FontRec): Add `registry' and `ordering'. + + * modules.cfg (BASE_EXTENSIONS): Add ftcid.c. + +2007-07-11 Derek Clegg + + Add support for postscript name service to CFF driver. + + * src/cff/cffdrivr.c: Include FT_SERVICE_POSTSCRIPT_NAME_H. + (cff_get_ps_name): New function. + (cff_service_ps_name): New service structure. + (cff_services): Register it. + +2007-07-07 Werner Lemberg + + * src/base/ftglyph.c (FT_Glyph_Copy): Fix initialization of + `target'. Reported by Sean McBride. + +2007-07-06 Werner Lemberg + + * src/pfr/pfrcmap.c: Include pfrerror.h. + + * src/autofit/afindic.c: Add some external declarations to pacify + `make multi' compilation. + + * src/cid/cidgload.c (cid_load_glyph): Pacify compiler. + + * src/cff/cffdrivr.c (cff_ps_get_font_info), src/cff/cffobjs.c + (cff_strcpy), include/freetype/internal/ftmemory.h (FT_MEM_STRDUP), + src/autofit/aflatin.c (af_latin_hints_compute_edges), + src/autofit/afcjk.c (af_cjk_hints_compute_edges), src/sfnt/ttmtx.c + (tt_face_get_metrics), src/base/ftobjs.c (open_face) + [FT_CONFIG_OPTION_INCREMENTAL]: Fix compilation with C++ compiler. + + * docs/release: Mention test compilation targets. + +2007-07-04 Werner Lemberg + + * docs/PROBLEMS: Mention that some PS based fonts can't be + handled correctly by FreeType. + + * src/truetype/ttgload.c (load_truetype_glyph): Always allow a + recursion depth of 1. This was the maximum value in TrueType 1.0, + and some older fonts don't set this field correctly. + + * src/gxvalid/gxvmort1.c + (gxv_mort_subtable_type1_substTable_validate): Fix tracing message. + +2007-07-03 Werner Lemberg + + * src/autofit/aflatin.c (af_latin_metrics_init_blues): Initialize + `round' to pacify compiler. + +2007-07-02 Werner Lemberg + + + * Version 2.3.5 released. + ========================= + + + Tag sources with `VER-2-3-5'. + + * docs/CHANGES, docs/VERSION.DLL: Update documentation and bump + version number to 2.3.5. + + * README, Jamfile (RefDoc), builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, + builds/win32/visualce/index.html, + builds/win32/visualce/freetype.dsp, + builds/win32/visualce/freetype.vcproj: s/2.3.4/2.3.5/, s/234/235/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 5. + + * builds/unix/configure.raw (version_info): Set to 9:16:3. + +2007-07-01 David Turner + + * include/freetype/freetype.h, src/base/ftpatent.c + (FT_Face_SetUnpatentedHinting): New function to dynamically change + the setting after a face is created. + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Fix a small bug + that created distortions in the bytecode interpreter results. + +2007-06-30 David Turner + + * src/truetype/ttinterp.c (Ins_IUP): Add missing variable + initialization. + + * src/autofit/aflatin.c (af_latin_metric_init_blues): Get rid of an + infinite loop in the case of degenerate fonts. + +2007-06-26 Rahul Bhalerao + + Add autofit module for Indic scripts. This currently just reuses + the CJK-specific functions. + + * include/freetype/config/ftoption.h (AF_CONFIG_OPTION_INDIC): New + macro. + * devel/ftoption.h: Synchronize with + include/freetype/config/ftoption.h. + + * src/autofit/afindic.c, src/autofit/afindic.h: New files. + + * src/autofit/afglobal.c, src/autofit/aftypes.h, + src/autofit/autofit.c: Updated. + + * src/autofit/Jamfile (_sources), * src/autofit/rules.mk + (AUTOF_DRV_SRC): Updated. + +2007-06-23 David Turner + + * src/truetype/ttgload.c (TT_Load_Simple): Fix change from + 2007-06-16 that prevented the TrueType module from loading most + glyphs. + +2007-06-20 Werner Lemberg + + * src/cff/cffgload.c (cff_slot_load): Fix logic of 2007-05-28 + change. + +2007-06-19 Werner Lemberg + + * src/type1/t1load.c (parse_encoding): Handle one more error. + +2007-06-19 Dmitry Timoshkov + + * src/winfonts/winfnt.c (fnt_face_get_dll_font): Return error + FNT_Err_Invalid_File_Format if file format was recognized but + the file doesn't contain any FNT(NE) or RT_FONT(PE) resources. + Add verbose debug logs to make it easier to debug failing load + attempts. + (FNT_Face_Init): A single FNT font can't contain more than 1 face, + so return an error if requested face index is > 0. + Do not do further attempt to load fonts if a previous attempt has + failed but returned error FNT_Err_Invalid_File_Format, i.e., the + file format has been recognized but no fonts found in the file. + +2007-07-19 suzuki toshiya + + * src/base/ftmac.c: Apply patches proposed by Sean McBride. + (FT_GetFile_From_Mac_Name): Insert FT_UNUSED macros to fix + the compiler warnings against unused arguments. + (FT_ATSFontGetFileReference): Ditto. + (FT_GetFile_From_Mac_ATS_Name): Ditto. + (FT_New_Face_From_FSSpec): Ditto. + (lookup_lwfn_by_fond): Fix wrong comment. + Replace `const StringPtr' by more appropriate type + `ConstStr255Param'. + FSRefMakePathPath always returns UTF8 POSIX pathname in + Mach-O, thus HFS pathname support is dropped. + (count_faces): Remove HLock and HUnlock which is not + required on Mac OS X anymore. + (FT_New_Face_From_SFNT): Ditto. + (FT_New_Face_From_FOND): Ditto. + * builds/mac/ftmac.c: Synchronize to src/base/ftmac.c, + except of HFS pathname support and HLock/HUnlock. + They are required on classic CFM environment. + +2007-06-18 Werner Lemberg + + * src/psaux/psobjs.c (ps_parser_skip_PS_token): Remove incorrect + assertion. + (ps_parser_to_bytes): Fix error message. + + * src/type42/t42objs.c (T42_Open_Face): Handle one more error. + * src/type42/t42parse.c (t42_parse_sfnts): s/alloc/allocated/. + Don't allow mixed binary and hex strings. + Handle string_size == 0 and string_buf == 0. + (t42_parse_encoding): Handle one more error. + +2007-06-18 Werner Lemberg + + * src/psaux/psobjs.c (ps_tofixedarray, ps_tocoordarray): Fix exit + logic. + (ps_parser_load_field) : Skip delimiters + correctly. + (ps_parser_load_field_table): Use `fields->array_max' instead of + T1_MAX_TABLE_ELEMENTS to limit the number of arguments. + + * src/cff/cffgload.c (cff_decoder_prepare): Fix change from + 2007-06-06. + +2007-06-17 Werner Lemberg + + * src/tools/ftrandom.c (font_size): New global variable. + (TestFace): Use it. + (main): Handle new option `--size' to set `font_size'. + (Usage): Updated. + + * src/winfonts/winfnt.c (fnt_face_get_dll_font): Exit in case of + invalid font. + (FNT_Load_Glyph): Protect against invalid bitmap width. + +2007-06-16 David Turner + + * src/smooth/ftgrays.c (gray_find_cell, gray_set_cell, gray_hline): + Prevent integer overflows when rendering very large outlines. + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Check the + well-formedness of the contours array when loading a glyph. + + * src/truetype/ttinterp.c (TT_Load_Context): Initialize `zp0', `zp1', + and `zp2'. + (Ins_IP): Check argument ranges to reject bogus operations properly. + (IUP_WorkerRec): Add `max_points' member. + (_iup_worker_interpolate): Check argument ranges. + (Ins_IUP): Ignore empty outlines. + +2007-06-16 Dmitry Timoshkov + + * src/winfonts/winfnt.h: Add necessary structures for PE resource + parsing. + (WinPE32_HeaderRec): New structure. + (WinPE32_SectionRec): New structure. + (WinPE_RsrcDirRec): New structure. + (WinPE_RsrcDirEntryRec): New structure. + (WinPE_RsrcDataEntryRec): New structure. + (FNT_FontRec): Remove unused `size_shift' field. + + * src/winfonts/winfnt.c (fnt_face_get_dll_font): Add support for + loading bitmap .fon files in PE format. + +2007-06-15 Dmitry Timoshkov + + * builds/win32/ftdebug.c: Unify debug level handling with other + platforms. + +2007-06-14 Dmitry Timoshkov + + * builds/win32/ftdebug.c (FT_Message): Send debug output to the + console as well as to the debugger. + +2007-06-14 Werner Lemberg + + * src/autofit/aflatin.c (af_latin_uniranges): Expand structure to + cover all ranges which could possibly be handled by the aflatin + module (since the default fallback for unknown ranges is now the + afcjk module). It might be necessary to fine-tune this further by + splitting off modules for Greek, Cyrillic, or other blocks. + +2007-06-11 David Turner + + * src/autofit/aflatin.c (af_latin_hints_link_segments): Fix + incorrect segment linking computation. This was the root cause of + Savannah bug #19565. + + + * src/autofit/* [FT_OPTION_AUTOFIT2]: Some very experimental changes + to improve the Latin auto-hinter. Note that the new code is + disabled by default since it is not stabilized yet. + + * src/autofit/aflatin2.c, src/autofit/aflatin2.h: New files + (disabled currently). + + * src/autofit/afhints.c: Remove dead code. + (af_axis_hints_new_edge): Add argument to handle segment directions. + (af_edge_flags_to_string): New function. + (af_glyph_hints_dump_segments, af_glyph_hints_dump_edges): Handle + option flags. + (af_glyph_hints_reload): Add argument to handle inflections. + Simplify. + (af_direction_compute): Fine tuning. + (af_glyph_hints_align_edge_points): Fix logic. + (af_glyph_hints_align_strong_points): Do linear search for small + edge counts. + (af_glyph_hints_align_weak_points): Skip any touched neighbors. + (af_iup_shift): Handle zero `delta'. + + * src/autofit/afhints.h: Updated. + (AF_SORT_SEGMENTS): New macro (disabled). + (AF_AxisHintsRec) [AF_SORT_SEGMENTS]: New member `mid_segments'. + + * src/autofit/afglobal.c (af_face_globals_get_metrics): Add + argument to pass option flags for handling scripts. + * src/autofit/afglobal.h: Updated. + + * src/autofit/afcjk.c: Updated. + * src/autofit/aflatin.c: Updated. + (af_latin_metrics_scale_dim): Don't reduce scale by 2%. + + (af_latin_hints_compute_segments) [AF_HINT_METRICS]: Remove dead code. + (af_latin_hints_compute_edges) [AF_HINT_METRICS]: Remove dead code. + Don't set `edge->dir' + (af_latin_hint_edges): Add more logging. + + * src/autofit/afloader.c: Updated. + +2007-06-11 Werner Lemberg + + * docs/CHANGES: Document FT_Face_CheckTrueTypePatents. + +2007-06-10 David Turner + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Slight speed-up to + the TrueType glyph loader. + + * include/freetype/config/ftoption.h: Clarify documentation + regarding unpatented hinting. + + + Add new `FT_Face_CheckTrueTypePatents' API. + + * include/freetype/freetype.h (FT_Face_CheckTrueTypePatents): New + declaration. + + * include/freetype/internal/services/svttglyf.h, + src/base/ftpatent.c: New files. + + * include/freetype/internal/ftserv.h (FT_SERVICE_TRUETYPE_GLYF_H): + New macro. + + * src/truetype/ttdriver.c: Include FT_SERVICE_TRUETYPE_GLYF_H and + `ttpload.h'. + (tt_service_truetype_glyf): New service structure. + (tt_services): Register it. + + * modules.cfg (BASE_EXTENSIONS), src/base/Jamfile (_sources): Add + `ftpatent.c'. + +2007-06-08 Werner Lemberg + + * src/sfnt/sfobjs.c (sfnt_load_face): Undo change from 2007-04-28. + Fonts without a cmap must be handled correctly by FreeType (anything + else would be a bug). + + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings) + [FT_DEBUG_LEVEL_TRACE]: Improve tracing message. + +2007-06-07 Werner Lemberg + + * src/sfnt/ttsbit0.c (tt_sbit_decoder_init, + tt_sbit_decoder_load_image): Protect against integer overflows. + + + * src/pfr/pfrgload.c (pfr_glyph_load_simple): More bounding checks + for `x_control' and `y_control'. + +2007-06-06 Werner Lemberg + + * src/base/ftoutln.c (FT_Outline_Decompose): Check `last'. + + + * src/pfr/pfrcmap.c (pfr_cmap_init): Convert assertion into normal + FreeType error. + + + * src/winfonts/winfnt.c (fnt_face_get_dll_font): Do a rough check of + `font_count'. + + + * src/type1/t1load.c (parse_font_matrix): Check `temp_scale'. + + + * src/cff/cffgload.c (cff_decoder_prepare): Change return type to + `FT_Error'. + Check `fd_index'. + (cff_slot_load): Updated. + * src/cff/cffgload.h: Updated. + +2007-06-05 Werner Lemberg + + * src/pfr/pfrgload.c (pfr_glyph_done): Comment out unused code. + (pfr_glyph_load_simple): Convert assertion into normal FreeType + error. + Check `idx'. + (pfr_glyph_load_compound, pfr_glyph_curve_to, pfr_glyph_line_to): + Convert assertion into normal FreeType error. + + * src/pfr/pfrtypes.h (PFR_GlyphRec): Comment out unused code. + + + * src/winfonts/winfnt.c (FNT_Face_Init): Check `family_size'. + + + * src/psaux/psobjs.c (ps_tocoordarray, ps_tofixedarray): Return -1 + in case of parsing error. + (ps_parser_load_field): Updated. + + * src/type1/t1load.c (parse_font_matrix): Updated. + +2007-06-04 Werner Lemberg + + * src/cid/cidgload.c (cid_load_glyph): Check `fd_select'. + + * src/tools/ftrandom/Makefile: Depend on `libfreetype.a'. + +2007-06-03 Werner Lemberg + + * src/tools/ftrandom/*: Add the `ftrandom' test program written by + George Williams (with some modifications). + +2007-06-03 Werner Lemberg + + * src/base/ftobjs.c (destroy_charmaps), src/type1/t1objs.c + (T1_Face_Done), src/winfonts/winfnt.c (FNT_Face_Done): Check for + face == NULL. Suggested by Graham Asher. + +2007-06-03 Ismail Dönmez + + * src/base/ftobjs.c (FT_Request_Metrics): Fix compiler warning. + +2007-06-02 Werner Lemberg + + * include/freetype/fterrdef.h (FT_Err_Corrupted_Font_Header, + FT_Err_Corrupted_Font_Glyphs): New error codes for BDF files. + + * src/bdf/bdflib.c (bdf_load_font): Use them. + + * src/bdf/bdflib.c (_bdf_parse_start): Check `FONT' better. + +2007-06-01 Werner Lemberg + + * src/base/ftobjs.c (FT_Request_Metrics), src/cache/ftccmap.c + (FTC_CMapCache_Lookup): Remove unused code. + +2007-06-01 Sean McBride + + * src/truetype/ttinterp.c (Null_Vector, NULL_Vector): Removed, + unused. + +2007-06-01 Werner Lemberg + + * src/cid/cidparse.c (cid_parser_new): Don't continue second search + pass for `StartData' if an error has occurred. + Exit properly if no `StartData' has been seen at all. + + * builds/unix/ftsystem.c (FT_Stream_Open): Don't use ULONG_MAX but + LONG_MAX to avoid compiler warning. Suggested by Sean McBride. + +2007-05-30 Werner Lemberg + + * src/type1/t1load.c (parse_subrs, parse_charstrings): Protect + against too small binary data strings. + + * src/bdf/bdflib.c (_bdf_parse_glyphs): Check `STARTCHAR' better. + +2007-05-28 David Turner + + * src/cff/cffgload.c (cff_slot_load): Do not apply the identity + transformation. This significantly reduces the loading time of CFF + glyphs. + + * docs/CHANGES: Updated. + + * src/autofit/afglobal.c (AF_SCRIPT_LIST_DEFAULT): Change default + hinting script to CJK, since it works well with more scripts than + latin. Thanks to Rahul Bhalerao for pointing + this out! + +2007-05-25 Werner Lemberg + + * docs/CHANGES: Updated. + +2007-05-24 Werner Lemberg + + * src/truetype/ttobjs.h (tt_size_ready_bytecode): Move declaration + into TT_USE_BYTECODE_INTERPRETER preprocessor block. + +2007-05-24 Graham Asher + + * src/truetype/ttobjs.c (tt_size_ready_bytecode) + [!TT_USE_BYTECODE_INTERPRETER]: Removed. Unused. + +2007-05-22 David Turner + + * src/truetype/ttgload.c (load_truetype_glyph): Fix last change to + avoid crashes in case the bytecode interpreter is not used. + + + Avoid heap blowup with very large .Z font files. This fixes + Savannah bug #19910. + + * src/lzw/ftzopen.h (FT_LzwStateRec): Remove `in_cursor', + `in_limit', `pad', `pad_bits', and `in_buff' members. + Add `buf_tab', `buf_offset', `buf_size', `buf_clear', and + `buf_total' members. + + * src/lzw/ftzopen.c (ft_lzwstate_get_code): Rewritten. It now takes + only one argument. + (ft_lzwstate_refill, ft_lzwstate_reset, ft_lzwstate_io): Updated. + +2007-05-20 Ismail Dönmez + + * src/pshinter/pshrec.c (ps_mask_table_set_bits): Add `const'. + (ps_dimension_set_mask_bits): Remove `const'. + +2007-05-19 Werner Lemberg + + * src/sfnt/ttmtx.c (tt_face_get_metrics) + [!FT_CONFIG_OPTION_OLD_INTERNALS]: Another type-punning fix. + +2007-05-19 Derek Clegg + + Savannah patch #5929. + + * include/freetype/tttables.h, src/base/ftobjcs.c + (FT_Get_CMap_Format): New function. + + * include/freetype/internal/services/svttcmap.c (TT_CMapInfo): Add + `format' member. + * src/sfnt/ttcmap.c (tt_cmap{0,2,4,6,8,10,12}_get_info): Set + cmap_info->format. + +2007-05-19 Werner Lemberg + + * src/truetype/ttgload.c (load_truetype_glyph): Save graphics state + before handling subglyphs so that it can be reinitialized each time. + This fixes Savannah bug #19859. + +2007-05-16 Werner Lemberg + + * src/cache/ftccache.c (ftc_node_mru_link, ftc_node_mru_unlink), + src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP), src/cache/ftcglyph.h + (FTC_GCACHE_LOOKUP_CMP), src/pshinter/pshmod.c (ps_hinter_init), + src/sfnt/ttmtx.c (tt_face_load_hmtx, tt_face_load_hhea, + tt_face_get_metrics): Fix type-punning issues. + +2007-05-15 David Turner + + * include/freetype/config/ftstdlib.h, + include/freetype/internal/ftobjs.h: As suggested by Graham Asher, + ensure that ft_isalnum, ft_isdigit, etc., use hard-coded values + instead on relying on the locale-dependent functions provided by + . + +2007-05-15 Graham Asher + + * src/autofit/afcjk.c (af_cjk_hints_compute_edges): Remove unused + variable. + * src/autofit/afloader.c (af_loader_load_g): Ditto. + + * src/base/ftobjs.c (ft_validator_error): Use `ft_jmp_buf'. + (open_face_from_buffer): Initialize `stream'. + (FT_Request_Metrics): Remove unused variable. + Remove redundant `break' statements. + (FT_Get_Track_Kerning): Remove unused variable. + + * src/psaux/afmparse.c (afm_parse_track_kern, afm_parse_kern_pairs, + afm_parse_kern_data): Remove redundant + `break' statements. + (afm_parser_parse): Ditto. + Don't use uninitialized variables. + + * src/psnames/psmodule.c (VARIANT_BIT): Define as unsigned long. + Use `|' operator instead of `^' to set it. + Update all users. + + * src/sfnt/ttcmap.c (tt_face_build_cmaps): Use `ft_jmp_buf'. + * src/sfnt/ttkern.c (tt_face_load_kern): Remove unused variable. + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Remove redundant + comparison. + (TT_Process_Simple_Glyph): Use FT_UInt for `n_points' and `i'. + (TT_Load_Glyph): Remove unused variable. + +2007-05-13 Derek Clegg + + * src/base/ftobjs.c (FT_New_Library): Only allocate rendering pool + if FT_RENDER_POOL_SIZE is > 0. From Savannah patch #5928. + +2007-05-11 David Turner + + * src/cache/ftbasic.c, include/freetype/ftcache.h + (FTC_ImageCache_LookupScaler, FTC_SBit_Cache_LookupScaler): Two new + functions that allow us to look up glyphs using an FTC_Scaler object + to specify the size, making it possible to use fractional pixel + sizes. + + * src/truetype/ttobjs.c (tt_size_ready_bytecode): Set + `size->cvt_ready'. Reported by Boris Letocha. + +2007-05-09 Graham Asher + + * src/truetype/ttinterp.c (Ins_IP), src/autofit/aflatin.c + (af_latin_metrics_scale_dim): Fix compiler warnings. + +2007-05-06 Werner Lemberg + + * builds/win32/visualce/freetype.sln: Removed, as requested by + Vincent. + +2007-05-04 Vincent RICHOMME + + * builds/win32/visualce/*: Add Visual C++ project files for Pocket + PC targets. + + * docs/CHANGES: Document them. + +2007-05-04 + + * builds/unix/ftsystem.c (FT_Stream_Open): Handle return value 0 of + mmap (which might happen on some RTOS). From Savannah patch #5909. + +2007-05-03 Werner Lemberg + + * src/base/ftobjs.c (FT_Set_Char_Size): Simplify code. + * include/freetype/freetype.h (FT_Set_Char_Size): Update + documentation. + +2007-04-28 Victor Stinner + + * src/sfnt/sfobjs.c (sfnt_load_face): Check error code after loading + `cmap'. + +2007-04-27 Werner Lemberg + + * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Check for negative + number of points in contours. Problem reported by Victor Stinner + . + (TT_Process_Simple_Glyph): Synchronize variable types. + +2007-04-26 Werner Lemberg + + * src/base/ftglyph.c (FT_Glyph_Copy): Always set second argument to + zero in case of error. This fixes Savannah bug #19689. + +2007-04-25 Boris Letocha + + * src/truetype/ttobjs.c: Fix a typo that created a speed regression + in the TrueType bytecode loader. + +2007-04-10 Martin Horak + + * src/sfnt/sfobjs.c (sfnt_load_face) [FT_CONFIG_OPTION_INCREMENTAL]: + Ignore `hhea' table. This fixes Savannah bug #19261. + +2007-04-09 Werner Lemberg + + + * Version 2.3.4 released. + ========================= + + + Tag sources with `VER-2-3-4'. + + * docs/CHANGES, docs/VERSION.DLL: Update documentation and bump + version number to 2.3.4. + + * README, Jamfile (RefDoc), builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj: s/2.3.3/2.3.4/, s/233/234/. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 4. + + * builds/unix/configure.raw (version_info): Set to 9:15:3. + +2007-04-09 Martin Horak + + * src/truetype/ttgload.c (load_truetype_glyph): Save and restore + memory stream to avoid a crash with the incremental memory + interface (Savannah bug #19260). + +2007-04-06 David Turner + + * src/base/ftbimap.c (ft_bitmap_assure_buffer): Fix buffer-overwrite bug + (Savannah bug #19536). + +2007-04-04 Werner Lemberg + + + * Version 2.3.3 released. + ========================= + + + Tag sources with `VER-2-3-3'. + + * docs/CHANGES: Mention CVE-2007-1351. + +2007-04-03 David Turner + + * src/base/ftobjs.c (FT_Set_Char_Size): As suggested by James Cloos, + if one of the resolution values is 0, treat it as if it were the + same as the other value. + +2007-04-02 David Turner + + Add special code to detect `extra-light' fonts and do not snap their + stem widths too much to avoid bizarre hinting effects. + + * src/autofit/aflatin.h (AF_LatinAxisRec): Add `standard_width' and + `extra_light' members. + + * src/autofit/aflatin.c (af_latin_metrics_init_widths): Initialize + them. + (af_latin_metrics_scale_dim): Set `extra_light'. + (af_latin_compute_stem_width): Use `extra_light'. + +2007-03-28 David Turner + + * src/base/ftbitmap.c (ft_bitmap_assure_buffer): Fix zero-ing of the + padding. + +2007-03-28 Werner Lemberg + + * src/bdf/bdflib.c (setsbit, sbitset): Handle values >= 128 + gracefully. + (_bdf_set_default_spacing): Increase `name' buffer size to 256 and + issue an error for longer names. This fixes CVE-2007-1351. + (_bdf_parse_glyphs): Limit allowed number of glyphs in font to the + number of code points in Unicode. + + * builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, README: s/2.3.2/2.3.3/, + s/232/233/. + + * docs/CHANGES: Mention ftdiff. + +2007-03-26 David Turner + + * src/truetype/ttinterp.c [FIX_BYTECODE]: Remove it and + corresponding code. + (Ins_MD): Last regression fix. + + * src/autofit/aflatin.c (af_latin_metrics_init_blues): Fix blues + computations in order to ignore single-point contours. These are + never rasterized and correspond in certain fonts to mark-attach + points that are very far from the glyph's real outline, ruining the + computation. + + * src/autofit/afloader.c (af_loader_load_g): In the case of + monospaced fonts, always set `rsb_delta' and `lsb_delta' to 0. + Otherwise code that uses them will most certainly ruin the fixed + advance property. + + * docs/CHANGES, docs/VERSION.DLL, README, Jamfile (RefDoc): Update + documentation and bump version number to 2.3.3. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 3. + + * builds/unix/configure.raw (version_info): Set to 9:14:3. + +2007-03-26 suzuki toshiya + + * builds/unix/ftconfig.in: Disable Carbon framework dependency on + 64bit ABI on Mac OS X 10.4.x (ppc & i386). Found by Sean McBride. + * builds/vms/ftconfig.h: Ditto. + * include/freetype/config/ftconfig.h: Ditto. + +2007-03-22 suzuki toshiya + + * builds/unix/ftsystem.c (FT_Stream_Open): Temporary fix to prevent + 32bit unsigned long overflow by 64bit filesize on LP64 platform, as + proposed by Sean McBride: + http://lists.gnu.org/archive/html/freetype-devel/2007-03/msg00032.html + +2007-03-22 suzuki toshiya + + * builds/unix/ftconfig.in: Suppress SGI compiler's warning against + setjmp, proposed by Sean McBride: + http://lists.gnu.org/archive/html/freetype-devel/2007-03/msg00032.html + +2007-03-19 suzuki toshiya + + * builds/unix/configure.raw: Dequote `OS_INLINE' in comment of + conftest.c, to avoid unexpected shell evaluation. Possibly it is a + bug or undocumented behaviour of autoconf. + +2007-03-18 David Turner + + * src/truetype/ttinterp.c (Ins_MDRP): Another bytecode regression + fix; testing still needed. + + * src/truetype/ttinterp.c (Ins_MD): Another bytecode regression fix. + +2007-03-17 David Turner + + * src/truetype/ttinterp.c (Ins_IP): Fix wrong handling of the + (undocumented) twilight zone special case. + +2007-03-09 Werner Lemberg + + + * Version 2.3.2 released. + ========================= + + + Tag sources with `VER-2-3-2'. + + * builds/win32/visualc/index.html, + builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, README: s/2.3.1/2.3.2/, + s/231/232/. + +2007-03-08 David Turner + + * docs/CHANGES, docs/VERSION.DLL: Updated for upcoming release. + + * builds/unix/configure.raw (version_info): Set to 9:13:3. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 2. + + * README, Jamfile (RefDoc): s/2.3.1/2.3.2/. + + * src/base/ftutil.c (ft_mem_strcpyn): Fix a bug that prevented the + function to work properly, over-writing user-provided buffers in + some cases. Reported by James Cloos . + + +2007-03-05 Werner Lemberg + + * include/freetype/config/ftstdlib.h (ft_strstr): New wrapper + macro for `strstr'. + + * src/truetype/ttobjs.c (tt_face_init): Use ft_strstr for scanning + `trick_names', as suggested by Ivan Nincic. + +2007-03-05 David Turner + + * src/base/ftinit.c (FT_Init_FreeType): Fix a small memory leak in + case FT_Init_FreeType fails for some reason. Problem reported by + Maximilian Schwerin . + + * src/truetype/ttobs.c (tt_size_init_bytecode): Clear the `x_ppem' + and `y_ppem' fields of the `TT_Size.metrics' structure, not those of + `TT_Size.root.metrics'. Problem reported by Daniel Glöckner + . + + * src/type1/t1afm.c (T1_Read_PFM): Read kerning values as 16-bit + signed values, not unsigned ones. Problem reported by Johannes + Walther . + +2007-02-21 David Turner + + * src/pshinter/pshalgo.c (psh_hint_align): Fix a bug in the hinting + of small and ghost stems in the Postscript interpreter. + +2007-02-20 suzuki toshiya + + * src/base/ftmac.c (FT_GetFileRef_From_Mac_ATS_Name): Fix memory + leak, patch by "Jjgod Jiang" . + * builds/mac/ftmac.c (FT_GetFileRef_From_Mac_ATS_Name): Ditto. + +2007-02-16 Werner Lemberg + + * src/truetype/ttinterp.c (Ins_MD): Remove unused variable. + * src/autofit/aflatin.c (af_latin_hints_link_segments): Ditto. + +2007-02-14 David Turner + + It seems that the following changes fix most of the known + interpreter problems with my fonts, but more testing is needed, + though. + + * src/truetype/ttinterp.c (FIX_BYTECODE): Activate. + (TT_MulFix14): Rewrite. + (Ins_MD, Ins_MDRP, Ins_IP) [FIX_BYTECODE]: Improved and updated. + (Ins_MIRP): Ditto. + +2007-02-12 Werner Lemberg + + * src/truetype/ttinterp.c (Project_x, Project_y): Remove compiler + warnings. + + * src/pcf/pcfread.c (pcf_interpret_style), src/bdf/bdfdrivr.c + (bdf_interpret_style): Ditto. + +2007-02-12 David Turner + + Simplify projection and dual-projection code interface. + + * src/truetype/ttinterp.h (TT_Project_Func): Use `FT_Pos', not + FT_Vector' as argument type. + * src/truetype/ttinterp.c (CUR_Func_project, CUR_Func_dualproj): + Updated. + (CUR_fast_project, CUR_fast_dualproj): New macros. + (Project, Dual_Project, Project_x, Project_y): Updated. + (Ins_GC, Ins_SCFS, Ins_MDAP, Ins_MIAP, Ins_IP): Use new `fast' + macros. + + + * src/autofit/afloader.c (af_loader_load_g): Improve spacing + adjustments for the non-light auto-hinted modes. Gets rid of + `inter-letter spacing is too wide' problems. + + * src/autofit/aflatin.c (af_latin_hints_link_segments, + af_latin_hints_compute_edges): Slight optimization of the segment + linker and better handling of serif segments to get rid of broken + `9' in Arial at 9pt (96dpi). + + + Introduce new string functions and the corresponding macros to get + rid of various uses of strcpy and other `evil' functions, as well as + to simplify a few things. + + * include/freetype/internal/ftmemory.h (ft_mem_strdup, ft_mem_dup, + ft_mem_strcpyn): New declarations. + (FT_MEM_STRDUP, FT_STRDUP, FT_MEM_DUP, FT_DUP, FT_STRCPYN): New + macros. + * src/base/ftutil.c (ft_mem_dup, ft_mem_strdup, ft_mem_strcpyn): New + functions. + + * src/bfd/bfddrivr.c (bdf_interpret_style, BDF_Face_Init), + src/bdf/bdflib.c (_bdf_add_property), src/pcf/pcfread.c + (pcf_get_properties, pcf_interpret_style, pcf_load_font), + src/cff/cffdrivr.c (cff_get_glyph_name), src/cff/cffload.c + (cff_index_get_sid_string), src/cff/cffobjs.c (cff_strcpy), + src/sfnt/sfdriver.c (sfnt_get_glyph_name), src/type1/t1driver.c + (t1_get_glyph_name), src/type42/t42drivr.c (t42_get_glyph_name, + t42_get_name_index): Use new functions and simplify code. + + * builds/mac/ftmac.c (FT_FSPathMakeSpec): Don't use FT_MIN. + +2007-02-11 Werner Lemberg + + * src/autofit/afloader.c (af_loader_load_g): Don't change width for + non-spacing glyphs. + +2007-02-07 Tom Parker + + * src/cff/cffdrivr.c (cff_get_name_index): Protect against NULL + pointer. + +2007-02-05 suzuki toshiya + + * include/freetype/ftmac.h (FT_DEPRECATED_ATTRIBUTE): + Introduce __attribute((deprecated))__ to warn functions + which use non-ANSI data types in its interfaces. + (FT_GetFile_From_Mac_Name): Deprecated, using FSSpec. + (FT_GetFile_From_Mac_ATS_Name): Deprecated, using FSSpec. + (FT_New_Face_From_FSSpec): Deprecated, using FSSpec. + (FT_New_Face_From_FSRef): Deprecated, using FSRef. + + * src/base/ftmac.c: Predefine FT_DEPRECATED_ATTRIBUTE as void + to avoid warning in building FreeType. + * builds/mac/ftmac.c: Ditto. + +2007-02-05 suzuki toshiya + + * src/base/ftbase.c: Fix to use builds/mac/ftmac.c, if configured + `--with-fsspec' etc. Replace #include "ftmac.c" with + #include . + +2007-02-05 suzuki toshiya + + * include/freetype/ftmac.h (FT_GetFilePath_From_Mac_ATS_Name): + Introduced as replacement of FT_GetFile_From_Mac_ATS_Name. + * src/base/ftmac.c (FT_GetFilePath_From_Mac_ATS_Name): Ditto. + (FT_GetFile_From_Mac_ATS_Name): Rewritten as wrapper of + FT_GetFilePath_From_Mac_ATS_Name. + * builds/mac/ftmac.c: Ditto. + +2007-02-05 suzuki toshiya + + * include/freetype/ftmac.h: Fixed wrong comment: FSSpec of + FT_GetFile_From_Mac_Name, FT_GetFile_From_Mac_ATS_Name are + for passing to FT_New_Face_From_FSSpec. + +2007-02-05 suzuki toshiya + + * builds/unix/configure.raw: Check whether Mac OS X system headers + can be built under ANSI C mode. + + * src/base/ftmac.c (OS_INLINE): Redefine OS_INLINE by a version + compatible to ANSI C in case system headers are ANSI C incompatible. + * builds/mac/ftmac.c (OS_INLINE): Ditto. + +2007-02-01 Werner Lemberg + + * include/freetype/ttnameid.h (TT_MS_LANGID_DZONGHKA_BHUTAN): + Explain why applications shouldn't use it. Found by Alexei. + +2007-02-01 Alexei Podtelezhnikov + + * builds/unix/freetype2.m4 (AC_CHECK_FT2): Fix spelling of warning + message. + + * src/gxvalid/gxvmort1.c + (gxv_mort_subtable_type1_substTable_validate): Fix debugging + message. + +2007-01-31 Werner Lemberg + + + * Version 2.3.1 released. + ========================= + + + Tag sources with `VER-2-3-1-FINAL'. + + * builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj: s/230/231/. + * builds/win32/visualc/index.html: s/221/231/. + + * vms_make.com: Add `ftgasp'. + +2007-01-30 David Turner + + Tag sources with VER-2-3-1 to prepare release. + + * include/freetype/freetype.h (FREETYPE_PATCH): Set to 1. + + * docs/VERSION.DLL, docs/release, README, Jamfile (RefDoc): + s/2.3.0/2.3.1/. + + * builds/unix/configure.raw (version_info): Set to 9:12:3. + + + * src/autofit/aftypes.h (AF_USE_WARPER), src/autofit/afloader.c + (af_loader_load_g): Disable the warper (i.e., the light hinting + improvements) to make a 2.3.1 bugfix release before introducing a + new feature. This should give us more time to tune and improve the + warper for the next release. + + * docs/CHANGES: Update accordingly. + +2007-01-25 David Turner + + For light auto-hinting, improve glyph advance widths and resurrect + normal/full hinting to its normal quality. + + * src/autofit/afhints.h (AF_GlyphHintsRec): New members `xmin_delta' + and `xmax_delta'. + * src/autofit/afhints.c (af_glyph_hints_reload): Reset `xmin_delta' + and `xmax_delta'. + + * src/autofit/afloader.c (af_loader_load_g) : Replace + preprocessor conditional with if-clause, handling both light and + normal mode. + + * src/autofit/afwarp.c (AF_WarpScore): Fine-tune again. + (af_warper_compute): Handle `xmin_delta' and `xmax_delta'. + +2007-01-25 Werner Lemberg + + * docs/release: Updated -- Savannah uses a new uploading scheme. + +2007-01-25 David Turner + + * src/cff/cffload.c (cff_index_get_pointers): Improve previous fix. + + * src/cff/cffgload.c (cff_decoder_parse_charstrings) + : Fix sanity check for empty + functions. + + * docs/CHANGES: Document light auto-hinting improvement. + +2007-01-25 Werner Lemberg + + * src/cff/cffload.c (cff_index_get_pointers): Handle last entry + correctly in a sanity check. Since this function is only used to + load local and global functions, any charstring that called the last + local/global function would fail otherwise. This fixes Savannah bug + #18867. + + * docs/CHANGES: Document it. + +2007-01-23 David Turner + + * src/truetype/ttobjs.c (tt_size_ready_bytecode): Fix typo that + prevented compilation when disabling both the unpatented and the + bytecode interpreter in the TrueType font driver. + + + Fix and enable the warper to improve `light' hinting mode. This is + not necessarily a final version, but it seems to work well. + + * src/autofit/aflatin.c (af_latin_hints_init) [AF_USE_WARPER]: + Disable code. + (af_latin_hints_apply) [AF_USE_WARPER]: Handle FT_RENDER_MODE_LIGHT. + * src/autofit/aftypes.h: Activate AF_USE_WARPER. + + * src/autofit/afwarp.c (AF_WarpScore): Tune table. + (af_warper_compute_line_best): Fix array size of `scores'. + (af_warper_compute): Better handling of border cases. + * src/autofit/afwarp.h (AF_WarperRec): Remove unused members `X1' + and `X2'. + +2007-01-21 Werner Lemberg + + * ChangeLog: Split off older entries into... + * ChangeLog.22: This new file. + +2007-01-21 Werner Lemberg + + * docs/CHANGES: Document SHZ fix. + +2007-01-21 George Williams + + * src/truetype/ttinterp.c (Ins_SHZ): SHZ doesn't move phantom + points. + +2007-01-21 Werner Lemberg + + * src/sfnt/ttmtx.c (tt_face_get_metrics) + [!FT_CONFIG_OPTION_OLD_INTERNALS]: Fix limit check. + +2007-01-17 Werner Lemberg + + + * Version 2.3.0 released. + ========================= + + + Tag sources with `VER-2-3-0-FINAL'. + +2007-01-17 Werner Lemberg + + * docs/release: Updated. + +2007-01-16 David Turner + + * src/autofit/aflatin.c (af_latin_hints_compute_segments), + src/cff/cffdriver.c (cff_ps_get_font_info), src/truetype/ttobjs.c + (tt_face_init), src/truetype/ttinterp.c (Ins_SHC): Fix compiler + warnings. + +2007-01-15 Detlef Würkner + + * builds/amiga/makefile, builds/amiga/makefile.os4, + builds/amiga/smakefile: Add `ftgasp.c' and `ftlcdfil.c'. + + * builds/amiga/include/freetype/config/ftconfig.h: Synchronize. + +2007-01-14 Detlef Würkner + + Fix various compiler warnings. + + * src/truetype/ttdriver.c (tt_size_select), src/cff/cffobjs.h, + src/cff/cffobjs.c (cff_size_request), src/type42/t42objs.h: + s/index/strike_index/. + * src/base/ftobjs.c (FT_Match_Size): s/index/size_index/. + + * src/gxvalid/gxvmorx5.c + (gxv_morx_subtable_type5_InsertList_validate): s/index/table_index/. + + * src/truetype/ttinterp.c (Compute_Point_Displacement), + src/pcf/pcfread.c (pcf_seek_to_table_type): Avoid possibly + uninitialized variables. + +2007-01-13 suzuki toshiya + + * docs/CHANGES, docs/INSTALL.MAC: Improvements. + +2007-01-13 Werner Lemberg + + * src/type1/t1afm.c (T1_Read_Metrics): MS Windows allows PFM + versions up to 0x3FF without complaining. + +2007-01-13 Derek Clegg + + Add FT_Get_PS_Font_Info interface to CFF driver. + + * src/cff/cfftypes.h: Include FT_TYPE1_TABLES_H. + (CFF_FontRec): Add `font_info' field. + + * src/cff/cffload.c: Include FT_TYPE1_TABLES_H. + (cff_font_done): Free font->font_info if necessary. + + * src/cff/cffdrvr.c (cff_ps_get_font_info): New function. + (cff_service_ps_info): Register cff_ps_get_font_info. + +2007-01-13 Werner Lemberg + + * src/base/ftoutln.c (FT_Outline_Get_Orientation): Fix compilation + with C++ compiler. + + * src/autofit/afhints.c (af_glyph_hints_dump_segments, + af_glyph_hints_dump_edges): Ditto. + + * src/base/rules.mk (BASE_SRC): Remove ftgasp.c (it's already in + `modules.cfg'). + + * src/sfnt/ttsbit0.h: Remove. + + * src/sfnt/rules.mk (SFNT_DRV_SRC): Don't include ttsbit0.c. + +2007-01-12 David Turner + + * src/base/ftbitmap.c (ft_bitmap_assure_buffer): Fix memory stomping + bug in the bitmap emboldener if the pitch of the source bitmap is + much larger than its width. + + * src/truetype/ttinterp.c (Update_Max): Fix aliasing-related + compilation warning. + +2007-01-12 Werner Lemberg + + * builds/unix/install-sh, builds/unix/mkinstalldirs: Updated from + `automake' CVS module from sources.redhat.com. + +2007-01-11 Werner Lemberg + + * src/type1/t1load.c (is_space): Removed. + (parse_encoding, parse_charstrings): Use IS_PS_DELIM. + (parse_charstrings): Use IS_PS_TOKEN. + + + * autogen.sh: Avoid bash specific syntax. + +2007-01-11 David Turner + + * docs/CHANGES: Small update. + + * builds/unix/configure.raw (version_info): Set to 9:11:3. + + * src/base/ftobjs.c (IsMacResource): Fix a small bug that caused a + crash with some Mac OS X .dfont files. Submitted by Masatake + Yamato. + + * autogen.sh: Small fix to get it working on Mac OS X properly: + The issue is that GNU libtool is called `glibtool' on this platform, + and we must call `glibtoolize', since `libtoolize' doesn't exist. + +2007-01-10 David Turner + + * all-sources: Tag all sources with VER-2-3-0-RC1 and + VER-2-3-0. + + * Jamfile (RefDoc), README, builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj, docs/VERSION.DLL: Update + version number to 2.3.0. + + * include/freetype/freetype.h (FREETYPE_MINOR): Set to 3. + (FREETYPE_PATCH): Set to 0. + + * include/freetype/ftchapters.h, include/freetype/ftgasp.h, + include/freetype/ftlcdfil.h: Update reference documentation with + GASP support and LCD filtering sections. + + * src/pshinter/pshalgo.c (psh_glyph_compute_inflections): Fix a typo + which created an endless loop with some malformed font files. + +2007-01-10 Derek Clegg + + * src/type1/t1load.c (T1_Get_MM_Var): Always return fixed point + values. + +2007-01-08 David Turner + + * docs/CHANGES: Updated. + + * include/freetype/ftgasp.h, src/base/ftgasp.c: New files which add + a new API `FT_Get_Gasp' to return entries of the `gasp' table + corresponding to a given character pixel size. + + * src/sfnt/ttload.c (tt_face_load_gasp): Add version check for the + `gasp' table, in order to avoid potential problems with later + versions. + + * include/freetype/config/ftheader.h (FT_GASP_H): New macro for + . + + * src/base/rules.mk (BASE_SRC), src/base/Jamfile (_sources), + modules.cfg (BASE_EXTENSIONS), builds/win32/visualc/freetype.dsp, + builds/win32/visualc/freetype.vcproj: Add src/base/ftgasp.c to the + default build. + +2007-01-07 Werner Lemberg + + * src/cid/cidparse.c (cid_parser_new): Improve error message for + Type 11 fonts. + Scan for `/sfnts' token. + +2007-01-07 Werner Lemberg + + * src/cid/cidparse.c (cid_parser_new): Reject Type 11 fonts. + +2007-01-06 Werner Lemberg + + * src/cff/cffload.c (cff_index_init): Remove unused variable. + (cff_index_read_offset): s/perror/errorp/ to avoid global shadowing. + +2007-01-04 David Turner + + * src/pfr/pfrobjs.c (pfr_face_init): Detect non-scalable fonts + correctly. This fixes Savannah bug #17876. + + + Do not allocate interpreter-specific tables in memory if we are not + going to load glyphs with the bytecode interpreter anyway. + + * src/truetype/ttgload.c (tt_loader_init): Load execution context + only if glyph is hinted. + Updated. + * src/truetype/ttobjs.h (TT_SizeRec): Add members `bytecode_ready' + and `cvs_ready'. + Add `tt_size_ready_bytecode' declaration. + * src/truetype/ttobjs.c (tt_size_done_bytecode, + tt_size_init_bytecode, tt_size_ready_bytecode): New functions. + (tt_size_init): Move most code into `tt_size_init_bytecode'. + (tt_size_done): Move most code into `tt_size_done_bytecode'. + (tt_size_reset): Move some code to `tt_size_ready_bytecode'. + + + Don't extract the metrics table from the SFNT font file. Instead, + reparse it on each glyph load. The runtime difference is not + noticeable, and it can save a lot of heap memory when memory-mapped + files are not used. + + * include/freetype/internal/tttypes.h (TT_FaceRec): Add members + `horz_metrics_offset' and `vert_metrics_ofset'. + * src/sfnt/ttmtx.c (tt_face_load_hmtx, tt_face_get_metrics): + Updated. + + + * src/sfnt/ttcmap.c (tt_cmap4_validate): Slight optimization. + + + Do not load the CFF index offsets into memory, since this wastes a + *lot* of heap memory with large Asian CFF fonts. There is no + significant performance loss. + + * src/cff/cffload.h: Add `cff_charset_cid_to_gindex' declaration. + * src/cff/cfftypes.h (CFF_IndexRec): Add fields `start' and + `data_size'. + (CFF_CharsetRec): Add field `num_glyphs'. + + * src/cff/cffload.c (cff_index_read_offset, cff_index_load_offsets, + cff_charset_cid_to_gindex): New functions. + (cff_new_index): Renamed to... + (cff_index_init): This. Update all callers. + Updated -- some code has been moved to `cff_index_load_offsets'. + (cff_done_index): Renamed to... + (cff_index_done): This. Update all callers. + (cff_index_get_pointers, cff_index_access_element): Updated to use + stream offsets. + (cff_charset_compute_cids): Set `num_glyphs' field. + (cff_encoding_load): Updated. + + * src/cff/cffgload.c (cff_slot_load): Updated. + +2007-01-04 David Turner + + * docs/INSTALL.UNIX: Simplify some parts, add reference to + autogen.sh and pointer to README.CVS. + + * README.CVS: Add common problem description and solution + when running autogen.sh. + + * docs/INSTALL: Add reference to MacOS X. + + * docs/MAKEPP, docs/INSTALL.MAC: New documentation files. + + * docs/TODO: Remove obsolete items. + + * src/raster/ftraster.c: (TRaster_Instance): Replace it with... + (TWorker): This. + Remove `count_table' and `memory'. + Make `grays' a pointer. + (TRaster): New structure. + (count_table): New static array. + (RAS_ARGS, RAS_ARG, RAS_VARS, RAS_VAR, FT_UNUSED_RASTER, cur_ras, + Vertical_Gray_Sweep_Step, ft_black_new, ft_black_done, + ft_black_set_mode, ft_black_render): Updated. + (ft_black_init): Don't initialize `count_table'. + (ft_black_reset): Use the render pool. This saves about 6KB of + heap space for each FT_Library instance. + + * src/smooth/ftgrays.c (TRaster): Replaced with... + (TWorker): This. + Remove `memory'. + (TRaster): New structure. + + (RAS_ARG_, RAS_ARG, RAS_VAR_, RAS_VAR, ras, gray_render_line, + gray_move_to, gray_line_to, gray_conic_to, gray_cubic_to, + gray_render_span, gray_raster_render): Updated. + (gray_raster_reset): Use the render pool. This saves about 6KB of + heap space for each FT_Library instance. + + * src/sfnt/sfobjs.c, src/sfnt/ttkern.c, src/sfnt/ttkern.h, + src/sfnt/ttmtx.c, src/sfnt/ttsbit.c, src/sfnt/ttsbit.h, + src/truetype/ttpload.c, include/freetype/config/ftoption.h: Remove + FT_OPTIMIZE_MEMORY macro (and code for !FT_OPTIMIZE_MEMORY) since + the optimization is no longer experimental. + + * src/pshinter/pshalgo.c (psh_glyph_interpolate_normal_points): + Remove a typo that results in no hinting and a memory leak with some + large Asian CFF fonts. + + * src/base/ftobjs.c (FT_Done_Library): Remove a subtle memory leak + which happens when FT_Done_Library is called with still opened + CFF_Faces in it. We need to close all faces before destroying the + modules, or else some bad things (memory leaks) may happen. + +2007-01-02 Werner Lemberg + + * src/gxvalid/gxvkern.c (gxv_kern_subtable_fmt0_pairs_validate): + Remove compiler warning. + +2007-01-02 David Turner + + * src/sfnt/sfobjs.c: Add documentation comment. + +2006-12-31 Masatake YAMATO + + * src/gxvalid/gxvkern.c (gxv_kern_subtable_fmt0_pairs_validate): New + function. + Check uniqueness of the gid pairs. + (gxv_kern_subtable_fmt0_validate): Move some code to + `gxv_kern_subtable_fmt0_pairs_validate'. + +2006-12-22 David Turner + + * src/autofit/aflatin.c, src/truetype/ttgload.c: Remove compiler + warnings. + + * builds/win32/visualc/freetype.vcproj: Add _CRT_SECURE_NO_DEPRECATE + to avoid deprecation warnings with Visual C++ 8. + +2006-12-16 Anders Kaseorg + + * src/base/ftlcdfil.c (FT_Library_SetLcdFilter) + [FT_FORCE_LIGHT_LCD_FILTER]: Fix typo. + +2006-12-15 suzuki toshiya + + * include/freetype/internal/services/svotval.h: Add `volatile' to + sync with the modification by Jens Claudius on 2006-08-22; cf. + http://cvs.savannah.gnu.org/viewcvs/freetype/freetype2/src/otvalid/otvmod.c?r1=1.4&r2=1.5 + +2006-12-15 suzuki toshiya + + * src/base/ftmac.c: Specialized for Mac OS X only. + * builds/unix/ftconfig.in: Fixed for ppc64 missing Carbon framework. + * builds/unix/configure.raw: Ditto. When explicit switches for + FSSpec/FSRef/QuickDraw/ATS availability are given to configure, + builds/mac/ftmac.c is used instead of default src/base/ftmac.c. + +2006-12-15 suzuki toshiya + + * builds/mac/ftmac.c: Copied src/base/ftmac.c for legacy system. + * builds/mac/FreeType.m68k_cfm.make.txt: Fix to use builds/mac/ftmac.c + instead of src/base/ftmac.c + * builds/mac/FreeType.ppc_carbon.make.txt: Ditto. + * builds/mac/FreeType.ppc_classic.make.txt: Ditto. + * builds/mac/FreeType.m68k_far.make.txt: Ditto, and exclude gxvalid.c + that cannot be built at present. + +2006-12-15 suzuki toshiya + + * src/base/ftobjs.c: Improvement of resource fork handler for + POSIX, cf. + http://lists.gnu.org/archive/html/freetype-devel/2006-10/msg00025.html + (Mac_Read_sfnt_Resource): Count only `sfnt' resource of suitcase font + format or .dfont, to simulate the face index number counted by ftmac.c. + (IsMacResource): Return the number of scalable faces correctly. + +2006-12-10 Werner Lemberg + + * builds/toplevel.mk (version): Protect against `distclean' target. + +2006-12-09 Werner Lemberg + + * builds/*/*def.mk, builds/*/detect.mk (CAT): Define to either `cat' + or `type'. + + * builds/freetype.mk (version): Extracted from freetype.h, using + GNU make's built-in string functions. + (refdoc): Use $(version) instead of static version number. + +2006-12-08 Werner Lemberg + + * builds/toplevel.mk (dist): Extract version number from freetype.h. + +2006-12-08 Vladimir Volovich + + * src/tools/apinames.c (State): Remove final comma in structure -- + xlc v5 under AIX 4.3 doesn't like this. + +2006-12-07 David Turner + + * src/autofit/afloader.c (af_loader_load_g): Small adjustment + to the spacing of auto-fitted glyphs. This only impacts rare + cases (e.g., Arial Bold at rather small character sizes). + +2006-12-03 Werner Lemberg + + * src/sfnt/rules.mk (SFNT_DRV_SRC): Add ttsbit0.c. + +2006-12-01 Werner Lemberg + + * src/sfnt/sfobjs.c (tt_face_get_name): All Unicode strings are + encoded in UTF-16BE. Patch from Rajeev Pahuja . + (tt_name_entry_ascii_from_ucs4): Removed. + + + * include/freetype/ftxf86.h: Fix and extend comment so that it + appears in the documentation. + + * include/freetype/ftchapters.h: Add `font_format' section. + + + * src/tools/docmaker/tohtml.py (HtmlFormatter::index_exit): Add link + to TOC in index page. + +2006-11-28 David Turner + + * src/smooth/ftgrays.c (gray_raster_render): Return 0 when we are + trying to render into a zero-width/height bitmap, not an error code. + + * src/truetype/ttobjs.c (tt_face_init): Fix typo in previous patch. + + * src/smooth/ftgrays.c: Remove hard-coded error values; use FreeType + ones instead. + + * src/autofit/afhints.c (af_glyph_hints_dump_segments): Remove unused + variable. + +2006-11-26 Pierre Hanser + + * src/truetype/ttobjs.c (tt_face_init): Protect against NULL pointer. + +2006-11-25 David Turner + + * src/autofit/afhints.c (af_glyph_hints_dump_points, + af_glyph_hints_dump_segments, af_glyph_hints_dumpedges) [!AF_DEBUG]: + Add stubs to link the `ftgrid' test program when debugging is + disabled in the auto-hinter. + +2006-11-23 David Turner + + * src/autofit/afhints.c, src/autofit/afhints.h, src/autofit/aflatin.c, + src/autofit/aftypes.h: Miscellaneous auto-hinter improvements. + + * src/autofit/afhints.c (af_glyph_hints_dump_segments) [AF_DEBUG]: + Emit more sensible information. + + * src/autofit/afhints.h (AF_SegmentRec): Add `height' member. + + * src/autofit/aflatin.c (af_latin_metrics_scale_dim): Improve + rounding of blue values. + (af_latin_hints_compute_segments): Hint segment heights. + (af_latin_hints_link_segments): Reduce `len_score' value. + (af_latin_hints_compute_edges): Increase `segment_length_threshold' + value and use `height' member for comparisons. + (af_latin_hint_edges): Extend logging message. + Improve handling of remaining edges. + +2006-11-22 Werner Lemberg + + Fix Savannah bug #15553. + + * src/truetype/ttgload.c (tt_loader_init): Re-execute the CVT + program after a change from mono to grayscaling (and vice versa). + Use correct constant for comparison to get `exec->grayscale'. + +2006-11-18 Werner Lemberg + + Because FT_Load_Glyph expects CID values for CID-keyed fonts, the + test for a valid glyph index must be deferred to the font drivers. + This patch fixes Savannah bug #18301. + + * src/base/ftobjs.c (FT_Load_Glyph): Don't check `glyph_index'. + * src/bdf/bdfdrivr.c (BDF_Glyph_Load), src/cff/cffgload.c + (cff_slot_load), src/cid/cidgload.c (cid_slot_load_glyph), + src/pcf/pcfdrivr.c (PCF_Glyph_Load), src/pfr/pfrobjs.c + (pfr_slot_load), src/truetype/ttdriver.c (Load_Glyph), + src/type1/t1gload.c (T1_Load_Glyph), src/winfonts/winfnt.c + (FNT_Load_Glyph): Check validity of `glyph_index'. + +2006-11-13 David Turner + + * src/truetype/ttinterp.c (FIX_BYTECODE): Undefine. The interpreter + `enhancements' are still too buggy for general use. + + * src/base/ftlcdfil.c: Add support for FT_FORCE_LIGHT_LCD_FILTER and + FT_FORCE_LEGACY_LCD_FILTER at compile time. Define these macros + when building the library to change the default LCD filter to be + used. This is only useful for experimentation. + + * include/freetype/ftlcdfil.h: Update documentation. + +2006-11-10 David Turner + + * src/smooth/ftsmooth.c: API change for the LCD + filter. The FT_LcdFilter value is an enumeration describing which + filter to apply, with new values FT_LCD_FILTER_LIGHT and + FT_LCD_FILTER_LEGACY (the latter implements the LibXft original + algorithm which produces strong color fringes for everything + except very-well hinted text). + + * include/freetype/ftlcdfil.h (FT_Library_SetLcdFilter): Change + second parameter to an enum type. + + * src/base/ftlcdfil.c (USE_LEGACY): Define. + (_ft_lcd_filter): Rename to... + (_ft_lcd_filter_fir): This. + Update parameters. + (_ft_lcd_filter_legacy) [USE_LEGACY]: New filter function. + (FT_Library_Set_LcdFilter): Update parameters. + Handle new filter modes. + + * include/internal/ftobjs.h: Include FT_LCD_FILTER_H. + (FT_Bitmap_LcdFilterFunc): Change third argument to `FT_Library'. + (FT_LibraryRec) [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Add filtering + callback and update other fields. + + * src/smooth/ftsmooth.c (ft_smooth_render_generic) + [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Update. + Other minor improvements. + + * src/autofit/aflatin.c: Various tiny improvements that drastically + improve the handling of serif fonts and of LCD/LCD_V hinting modes. + (af_latin_hints_compute_edges): Fix typo. + (af_latin_compute_stem_width): Take better care of diagonal stems. + +2006-11-09 David Turner + + * src/pshinter/pshalgo.c (psh_glyph_compute_inflections): Fix + typo which created a variable-used-before-initialized bug. + +2006-11-07 Zhe Su + + * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Handle vertical layout + also. + +2006-11-03 Werner Lemberg + + * src/base/ftcalc.c: Don't use `long long' but `FT_Int64'. + +2006-11-02 David Turner + + Add a few tweaks to better handle serif fonts. + Add more debugging messages. + + * src/autofit/aflatin.c (af_latin_hints_compute_edges): Ignore + segments that are less than 1.5 pixels high. This gets rid of + *many* corner cases with serifs. + (af_latin_align_linked_edge): Add logging message. + (af_latin_hint_edges): Use AF_HINTS_DO_BLUES. + Add logging messages. + Handle AF_EDGE_FLAG flag specially. + + * src/autofit/afmodule.c [AF_DEBUG]: Add _af_debug, + _af_debug_disable_blue_hints, and _af_debug_hints variables. + + * src/autofit/aftypes.h (AF_LOG) [AF_DEBUG]: Use _af_debug. + Update external declarations. + (af_corner_orientation, af_corner_is_flat): Replaced by... + + * include/freetype/internal/ftcalc.h (ft_corner_orientation, + ft_corner_is_flat): These declarations. + + * src/autofit/afangles.c (af_corner_orientation, af_corner_is_flat): + Comment out. Replaced by... + + * src/base/ftcalc.h (ft_corner_orientation, ft_corner_is_flat): + These functions. Update all callers. + (FT_Add64) [!FT_LONG64]: Simplify. + + * src/autofit/afhints.c: Include FT_INTERNAL_CALC_H. + (af_direction_compute): Add a missing FT_ABS call. This bug caused + production of garbage by missing lots of segments. + + * src/autofit/afhints.h (AF_HINTS_DO_BLUES): New macro. + + * src/autofit/afloader.c (af_loader_init, af_loader_done) + [AF_DEBUG]: Set _af_debug_hints. + + + * src/pshinter/pshalgo.c: Include FT_INTERNAL_CALC_H. + (psh_corner_is_flat, psh_corner_orientation): Use ft_corner_is_flat + and ft_corner_orientation. + + + * src/gzip/inftrees.c (huft_build): Remove compiler warning. + +2006-10-24 Werner Lemberg + + * src/cff/cffload.c (cff_encoding_load): Remove unused variable. + + * src/base/ftobjs.c (FT_Select_Charmap): Disallow FT_ENCODING_NONE + as argument. + +2006-10-23 Zhe Su + + * src/base/ftoutln.c (FT_Outline_Get_Orientation): Re-implement to + better deal with broken Asian fonts with strange glyphs, having + self-intersections and other peculiarities. The used algorithm is + based on the nonzero winding rule. + +2006-10-23 David Turner + + Speed up the CFF font loader. With some large CFF fonts, + FT_Open_Face is now more than three times faster. + + * src/cff/cffload.c (cff_get_offset): Removed. + (cff_new_index): Inline functionality of `cff_get_offset'. + (cff_charset_compute_cids, cff_charset_free_cids): New functions. + (cff_charset_done): Call `cff_charset_free_cids'. + (cff_charset_load): Call `cff_charset_compute_cids'. + (cff_encoding_load) : Ditto, to replace inefficient loop. + + * src/sfnt/ttmtx.c (tt_face_load_hmtx): Replace calls to FT_GET_XXX + with FT_NEXT_XXX. + + + Speed up the Postscript hinter, with more than 100% speed increase + on my machine. + + * src/pshinter/pshalgo.c (psh_corner_is_flat, + psh_corner_orientation): New functions. + (psh_glyph_compute_inflections): Merge loops for efficiency. + Use `psh_corner_orientation'. + (psh_glyph_init): Use `psh_corner_is_flat'. + (psh_hint_table_find_strong_point): Renamed to... + (psh_hint_table_find_strong_points): This. + Rewrite, adding argument to handle all points at once. + Update all callers. + (PSH_MAX_STRONG_INTERNAL): New macro. + (psh_glyph_interpolate_normal_points): Rewrite for efficiency. + +2006-10-15 suzuki toshiya + + * src/base/ftmac.c (FT_New_Face_From_FOND): Initialize variable + `error' with FT_Err_Ok. + +2006-10-14 suzuki toshiya + + * docs/INSTALL.CROSS: New document file for cross-building. + + * builds/unix/configure.raw: Preliminary cross-building support. + Find native C compiler and pass it by CC_BUILD, and + find suffix for native executable and pass it by EXEEXT_BUILD. + Also suffix for target executable is passed by EXEEXT. + + * builds/unix/unix-cc.in (CCraw_build, E_BUILD): New variables to + build `apinames' which runs on building system. They are set by + CC_BUILD and EXEEXT_BUILD. + + * builds/exports.mk (APINAMES_EXE): Change the extension for + apinames from the suffix for target (E) to that for building host + (E_BUILD). + +2006-10-12 Werner Lemberg + + * docs/INSTALL.UNX, docs/UPGRADE.UNX: Renamed to... + * docs/INSTALL.UNIX, docs/UPGRADE.UNIX: This. Update all documents + which reference those files. + +2006-10-12 suzuki toshiya + + * builds/unix/configure.raw (FT2_EXTRA_LIBS): New variable. It is + embedded in freetype2.pc and freetype-config. Use it to record + Carbon dependency of MacOSX. + + * builds/unix/freetype2.in: Embed FT2_EXTRA_LIBS. + + * builds/unix/freetype-config.in: Ditto. + +2006-10-11 Werner Lemberg + + * devel/ftoption.h (FT_CONFIG_OPTION_SUBPIXEL_RENDERING): Define for + development. + +2006-10-03 Jens Claudius + + * include/freetype/config/ftstdlib.h: Cast away volatileness from + argument to ft_setjmp. + + * include/freetype/internal/ftvalid.h: Add comment that + ft_validator_run must not be used. + +2006-10-01 Werner Lemberg + + * src/base/ftbase.c: Undo change from 2006-09-30. + + * src/base/rules.mk (BASE_SRC): Remove `ftlcdfil.c'. + +2006-09-30 David Turner + + * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): + s/unpatented_hinting/ignore_unpatented_hinter/. + Update all callers. + + * src/base/ftobjs.c (FT_Load_Glyph): Refine the algorithm whether + auto-hinting shall be used or not. + + * src/truetype/ttobjs.c (tt_face_init): Ditto. + +2006-09-30 Werner Lemberg + + * src/base/rules.mk (BASE_SRC): Remove `ftapi.c' (which is no longer + in use). + + * src/base/ftbase.c: Include `ftlcdfil.c'. + +2006-09-29 Werner Lemberg + + * src/sfnt/ttcmap.c (tt_cmap4_char_map_binary): Fix algorithm for + overlapping segments. Bug reported by Stefan Koch. + +2006-09-28 David Turner + + Fix a bug in the automatic unpatented hinting support which prevents + normal bytecode hinting to work properly. + + * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): + s/force_autohint/unpatented_hinting/. Update all callers. + + * src/base/ftobjs.c (FT_Load_Glyph): Updated code. + + * src/autofit/aftypes.h (AF_DEBUG): Undefine to get rid of traces. + +2006-09-27 David Turner + + * include/freetype/freetype.h (FT_FREETYPE_PATCH): Set to 2. + + + Add a new API to support color filtering of subpixel glyph bitmaps. + In a default build, the function `FT_Library_SetLcdFilter' returns + `FT_Err_Unimplemented_Feature'; you need to #define + FT_CONFIG_OPTION_SUBPIXEL_RENDERING in ftoption.h to compile the + real implementation. + + * include/freetype/ftlcdfil.h, src/base/ftlcdfil.c: New files. + + * include/freetype/internal/ftobjs.h (FT_Bitmap_LcdFilterFunc): New + typedef. + (FT_LibraryRec) [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: New members + `lcd_filter_weights' and `lcd_filter'. + + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Remove arguments + `hmul' and `vmul'. + + Handle subpixel rendering. + Simplify function. + (ft_smooth_render_lcd): Use `FT_RENDER_MODE_LCD'. + (ft_smooth_render_lcd_v): Use `FT_RENDER_MODE_LCD_V'. + + * include/freetype/config/ftheader.h (FT_LCD_FILTER_H): New macro, + pointing to . + + * src/base/Jamfile (_sources), src/base/rules.mk (BASE_SRC), + vms_make.com: Add `ftlcdfil.c' to the list of compiled source files. + + * modules.cfg (BASE_EXTENSIONS): Add ftlcdfil.c. + +2006-09-26 David Bustin + + * src/pfr/pfrobjs.c (pfr_face_get_kerning): Skip adjustment bytes + correctly. Reported as Savannah bug #17843. + +2006-09-26 David Turner + + * src/autofit/afhints.h (AF_HINTS_DO_HORIZONTAL, + AF_HINTS_DO_VERTICAL, AF_HINTS_DO_ADVANCE): New macros to disable + horizontal and vertical hinting for the purpose of debugging the + auto-fitter. + + * src/autofit/afmodule.c (_af_debug_disable_horz_hints, + _af_debug_disable_vert_hints) [AF_DEBUG]: New global variables. + + * src/autofit/aftypes.h [AF_DEBUG]: Declare above variables. + + * include/freetype/config/ftoption.h, devel/ftoption.h + (FT_CONFIG_OPTION_SUBPIXEL_RENDERING): New macro to control whether + we want to compile LCD-optimized rendering code (à la ClearType) or + not. The macro *must* be disabled in default builds of the library + for patent reasons. + + * src/smooth/ftsmooth.c (ft_smooth_render_generic): Disable + LCD-specific rendering when FT_CONFIG_OPTION_SUBPIXEL_RENDERING + isn't defined at compile time. This only changes the content of the + rendered glyph to match the one of normal gray-level rendering, + hence clients should not need to be modified. + + * docs/CHANGES: Updated. + +2006-09-18 Garrick Meeker + + * src/base/ftmac.c (FT_New_Face_From_FOND): Fall back to SFNT if + LWFN fails and both are available. + +2006-09-11 David Turner + + * src/sfnt/sfobjs.c (tt_face_get_name): Support some fonts which + report their English names through an Apple Roman + (platform,encoding) pair, with language_id != English. + + If the font uses another name entry with language_id == English, it + will be selected correctly, though. + + * src/truetype/ttobjs.c (tt_face_init): Add unpatented hinting + selection for `mingli.ttf'. + +2006-09-05 Werner Lemberg + + * src/truetype/ttpload.c (tt_face_load_hdmx): Handle `record_size' + values which have the upper two bytes set to 0xFF instead of 0x00 + (as it happens in at least two CJKV fonts, `HAN NOM A.ttf' and + `HAN NOM B.ttf'). + + * src/smooth/ftgrays.c [GRAYS_USE_GAMMA]: Really remove all code. + +2006-09-05 David Turner + + Minor source cleanups and optimizations. + + * src/smooth/ftgrays.c (GRAYS_COMPACT): Removed. + (TRaster): Remove `count_ex' and `count_ey'. + (gray_find_cell): Remove 2nd and 3rd argument. + (gray_alloc_cell): Merged with `gray_find_cell'. + (gray_record_cell): Simplify. + (gray_set_cell): Rewrite. + (gray_start_cell): Apply offsets to `ras.ex' and `ras.ey'. + (gray_render_span): Don't use FT_MEM_SET for small values. + (gray_dump_cells) [DEBUG_GRAYS]: New function. + (gray_sweep): Avoid buffer overwrites when to drawing the end of a + bitmap scanline. + (gray_convert_glyph): Fix speed-up. + +2006-09-04 David Turner + + * src/smooth/ftgrays.c (gray_convert_glyphs): Make it work with + 64bit processors. + +2006-09-03 Werner Lemberg + + * devel/ftoption.h: Synchronize with + include/freetype/config/ftoption.h. + + * src/smooth/ftgrays.c (gray_record_cell): Remove shadowing + variable declaration. + (gray_convert_glyph): Fix compiler warnings. + +2006-09-01 David Turner + + * src/truetype/ttobjs.c (tt_face_init): Update the TrueType loader + to recognize a few fonts that require the automatic unpatented + loader. + + * src/smooth/ftgrays.c: Optmize the performance of the anti-aliased + rasterizer. The speed improvement is between 15% and 25%, depending + on the font data. + + (GRAYS_USE_GAMMA, GRAYS_COMPACT): Removed, and all associated code. + (TCell): Redefine. + (TRaster): New members `buffer', `buffer_size', `ycells', `ycount'. + (gray_init_cells): Updated. + (gray_find_cell, gray_alloc_cell): New functions. + (gray_record_cell): Rewritten to use `gray_find_cell' and + `gray_alloc_cell'. + (PACK, LESS_THAN, SWAP_CELLS, DEBUG_SORT, QUICK_SORT, SHELL_SORT, + QSORT_THRESHOLD): + Removed. + (gray_shell_sort, gray_quick_sort, gray_check_sort, + gray_dump_cells): Removed. + (gray_sweep): Rewritten. + (gray_convert_glyph): Rewrite code which used one of the sorting + functions. + (gray_raster_render): Updated. + +2006-08-29 Dr. Werner Fink + + * configure: Make it possible to handle configure options which + have strings containing spaces. + +2006-08-27 David Turner + + * include/freetype/config/ftoption.h (TT_USE_BYTECODE_INTERPRETER): + New macro, defined if either TT_CONFIG_OPTION_BYTECODE_INTERPRETER + or TT_CONFIG_OPTION_UNPATENTED_HINTING is defined. + + * include/freetype/internal/ftcalc.h, src/base/ftcalc.c, + src/truetype/truetype.c, src/truetype/ttdriver.c, + src/truetype/ttgload.c, src/truetype/ttgload.h, + src/truetype/ttinterp.c, src/truetype/ttobjs.c, + src/truetype/ttobjs.h, src/truetype/ttpload.c, src/type42/t42drivr.c: + s/TT_CONFIG_OPTION_BYTECODE_INTERPRETER/TT_USE_BYTECODE_INTERPRETER/. + + * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): New + member `force_autohint'. + + * src/base/ftobjs.c (FT_Load_Glyph): Use `force_autohint'. + + * src/truetype/ttobjs.c (tt_face_init): Prepare code for testing + against a list of font names which need the bytecode interpreter. + +2006-08-27 Jens Claudius + + Fix miscellaneous compiler warnings. + + * include/freetype/internal/ftobjs.h: Close comment with `*/' to + avoid `/* in comment' compiler warning. + + * src/base/ftdbgmem.c (ft_mem_table_get_source): Turn cast + `(FT_UInt32)(void*)' into `(FT_UInt32)(FT_PtrDist)(void*)' since on + 64-bit platforms void* is larger than FT_UInt32. + + * src/base/ftobjs.c (t_validator_error): Cast away + volatileness of argument to ft_longjmp. Spotted by Werner + `Putzfrau' Lemberg. + + * src/bdf/bdflib.c (bdf_load_font): Initialize local + variable `lineno'. + + * src/gxvalid/gxvmod.c (classic_kern_validate): Mark local variable + `error' as volatile. + +2006-08-27 Werner Lemberg + + * builds/unix/ftconfig.in: Synchronize with main ftconfig.h. + Reported by Jens. + +2006-08-22 Jens Claudius + + Fix for previous commit, which caused many compiler warnings/errors + about addresses of volatile objects passed as function arguments as + non-volatile pointers. + + * include/freetype/internal/ftvalid.h: Make FT_Validator typedef a + pointer to a volatile object. + + * src/gxvalid/gxvmod.c (gxv_load_table): Make function argument + `table' a pointer to a volatile object. + + * src/otvalid/otvmod.c (otv_load_table): Make function argument + `table' a pointer to a volatile object. + +2006-08-18 Jens Claudius + + * src/gxvalid/gxvmod.c (GXV_TABLE_DECL): Mark local variable `_sfnt' + as volatile since it must keep its value across a call to ft_setjmp. + (gxv_validate): Same for local variables `memory' and `valid'. + (classic_kern_validate): Same for local variables `memory', + `ckern', and `valid'. + + * src/otvalid/otvmod.c (otv_validate): Same for function parameter + `face' and local variables `base', `gdef', `gpos', `gsub', `jstf', + and 'valid'. + + * src/sfnt/ttcmap.c (tt_face_build_cmaps): Same for local variable + `cmap'. + +2006-08-16 David Turner + + * src/cid/cidgload.c (cid_slot_load_glyph): Remove compiler + warnings. + + * src/base/ftobjs.c (ft_validator_run): Disable function; it is + buggy by design. Always return -1. + + + Improvements to native TrueType hinting. This is a first try, + controlled by the FIX_BYTECODE macro in src/truetype/ttinterp.c. + + * include/freetype/internal/ftgloadr.h (FT_GlyphLoadRec): Add member + `extra_points2'. + + * include/freetype/internal/tttypes.h (TT_GlyphZoneRec): Add member + `orus'. + + * src/base/ftgloadr.c (FT_GlyphLoader_Reset, + FT_GlyphLoader_Adjust_Points, FT_GlyphLoader_CreateExtra, + FT_GlyphLoader_CheckPoints, FT_GlyphLoader_CopyPoints): Updated to + handle `extra_points2'. + + * src/truetype/ttgload.c (tt_prepare_zone): Handle `orus'. + Remove compiler warning. + (cur_to_arg): Remove macro. + (TT_Hint_Glyph): Updated. + (TT_Process_Simple_Glyph): Handle `orus'. + + * src/truetype/ttinterp.c (FIX_BYTECODE): New macro. + (Ins_MD, Ins_MDRP, Ins_IP) [FIX_BYTECODE]: Handle `orus'. + (LOC_Ins_IUP): Renamed to... + (IUP_WorkerRec): This. + Add `orus' member. + (Shift): Renamed to... + (_iup_worker_shift): This. + Updated. + (Interp): Renamed to... + (_iup_worker_interpolate): This. + Updated to handle `orus'. + (Ins_IUP): Updated. + + * src/truetype/ttobjs.c (tt_glyphzone_done, tt_glyphzone_new): + Handle `orus'. + +2006-08-15 suzuki toshiya + + * modules.cfg (BASE_EXTENSIONS): Compile in ftgxval.c by default to + build ftvalid in ft2demos. This has been inadvertedly changed + 2006-08-13. + +2006-08-15 suzuki toshiya + + `ft_validator_run' wrapping `setjmp' can cause a crash, as found by + Jens: + http://lists.gnu.org/archive/html/freetype-devel/2006-08/msg00004.htm. + + * src/otvalid/otvmod.c: Replace `ft_validator_run' by `ft_setjmp'. + It reverts the change introduced on 2005-08-20. + + * src/gxvalid/gxvmod.c: Ditto. + +2006-08-13 Jens Claudius + + * finclude/freetype/internal/psaux.h: (T1_TokenType): Add + T1_TOKEN_TYPE_KEY. + (T1_FieldRec): Add `dict'. + (T1_FIELD_DICT_FONTDICT, T1_FIELD_DICT_PRIVATE): New macros. + (T1_NEW_XXX, T1_FIELD_XXX): Update to take the dictionary where a PS + keyword is expected as an additional argument. + + * src/cid/cidload.c: (cid_field_records): Adjust invocations of + T1_FIELD_XXX. + + * src/cid/cidtoken.h: Adjust invocations of T1_FIELD_XXX. + + * src/psaux/psobjs.c: Add macro FT_COMPONENT for tracing. + (ps_parser_to_token): Report a PostScript key as T1_TOKEN_TYPE_KEY, + not T1_TOKEN_TYPE_ANY. + (ps_parser_load_field): Make sure a token that should be a string or + name is really a string or name. + Avoid memory leak if a keyword has been already encountered and its + value is overwritten. + * src/type1/t1load.c: (t1_keywords): Adjust invocations of + T1_FIELD_XXX. + (parse_dict): Ignore keywords that occur in the wrong dictionary + (e.g., in `Private' instead of `FontDict'). + + * src/type1/t1tokens.h: Adjust invocations of T1_FIELD_XXX. + + * src/type42/t42parse.c: (t42_keywords): Adjust invocations of + T1_FIELD_XXX. + +2006-07-18 Jens Claudius + + Move creation of field `buildchar' of T1_DecoderRec out of + `t1_decoder_init' and let the caller of `t1_decoder_init' take care + of it. + + Call the finisher for T1_Decoder in `cid_face_compute_max_advance' + and `T1_Compute_Max_Advance'. + + * include/freetype/internal/psaux.h (T1_DecoderRec): Remove field + `face', add `len_buildchar'. + + * include/freetype/internal/t1types.h (T1_FaceRec): Add field + `buildchar'. + + * src/cid/cidgload.c (cid_face_compute_max_advance): Call finisher + for T1_Decoder. + (cid_slot_load_glyph): Do not ignore failure when initializing the + T1_Decoder. + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings): Updated. + (t1_decoder_init): Remove initialization of fields `buildchar' and + `len_buildchar'. + (t1_decoder_done): Remove deallocation of field `buildchar'. + + * freetype/src/type1/t1gload.c (T1_Compute_Max_Advance): Initialize + T1_Decoder's `buildchar' and `len_buildchar'; call finisher for + T1_Decoder. + (T1_Load_Glyph): Initialize T1_Decoder's `buildchar' and + `len_buildchar'; make sure to call finisher for T1_Decoder even in + case of error. + + * src/type1/t1load.c (T1_Open_Face): Allocate new field `buildchar' + of T1_FaceRec. + + * src/type1/t1objs.c (T1_Face_Done): Free new field `buildchar' of + T1_FaceRec. + +2006-07-14 Jens Claudius + + * include/freetype/internal/psaux.h: New macros IS_PS_NEWLINE, + IS_PS_SPACE, IS_PS_SPECIAL, IS_PS_DELIM, IS_PS_DIGIT, IS_PS_XDIGIT, + and IS_PS_BASE85 (from src/psaux/psconv.h). + (T1_FieldLocation): Add T1_FIELD_LOCATION_LOADER, + T1_FIELD_LOCATION_FACE, and T1_FIELD_LOCATION_BLEND. + (T1_DecoderRec): New fields `buildchar' and `face'. + (IS_PS_TOKEN): New macro. + + * include/freetype/internal/t1types.h (T1_FaceRec): New fields + `ndv_idx', `cdv_idx', and `len_buildchar'. + + * include/freetype/t1tables.h (PS_BlendRec): New fields + `default_design_vector' and `num_default_design_vector'. + + * src/psaux/psconv.h: Move macros IS_PS_NEWLINE, IS_PS_SPACE, + IS_PS_SPECIAL, IS_PS_DELIM, IS_PS_DIGIT, IS_PS_XDIGIT, and + IS_PS_BASE85 to include/freetype/internal/psaux.h. + + * src/psaux/psobjs.c (ps_parser_to_token_array): Allow `token' + argument to be NULL if we want only to count the number of tokens. + (ps_tocoordarray): Allow `coords' argument to be NULL if we just + want to skip the array. + (ps_tofixedarray): Allow `values' argument to be NULL if we just + want to skip the array. + + * src/psaux/t1decode.c (t1_decoder_parse_charstrings): Add support + for (partially commented out) othersubrs 19-25, 27, and 28. + (t1_decoder_init): Initialize new fields `face' and `buildchar'. + (t1_decoder_done): Release new field `buildchar'. + + * src/type1/t1load.c (parse_buildchar, parse_private): New + functions. + (t1_keywords): Register them. + (t1_allocate_blend): Updated. + (t1_load_keyword): Handle field types T1_FIELD_LOCATION_LOADER, + T1_FIELD_LOCATION_FACE and T1_FIELD_LOCATION_BLEND. + (parse_dict): Remove `keyword_flags' argument. + Use new macro IS_PS_TOKEN. + Changed function so that later PostScript definitions override + earlier ones. + (t1_init_loader): Initialize new field `keywords_encountered'. + (T1_Open_Face): Initialize new fields `ndv_idx', `cdv_idx', and + `len_buildchar'. + Remove `keywords_flags'. + + * src/type1/t1load.h (T1_LoaderRect): New field + `keywords_encountered'. + (T1_PRIVATE, T1_FONTDIR_AFTER_PRIVATE): New macros. + + * src/type1/t1tokens.h [!T1_CONFIG_OPTION_NO_MM_SUPPORT]: New + entries for parsing /NDV, /CDV, and /DesignVector. + +2006-07-07 Werner Lemberg + + Add many checks to protect against malformed PCF files. + + * src/pcf/pcfdrivr.c (PCF_Face_Done): Protect against NULL pointers. + (PCF_Face_Init): Add calls to PCF_Face_Done in case of errors. + + * src/pcf/pcfread.c (pcf_read_TOC): Protect against malformed table + data and check that tables don't overlap (using a simple + bubblesort). + (PCF_METRIC_SIZE, PCF_COMPRESSED_METRIC_SIZE, PCF_PROPERTY_SIZE): + New macros which give the size of data structures in the data + stream. + (pcf_get_properties): Use rough estimates to get array size limits. + Assign `face->nprops' and `face->properties' earlier so that a call + to PCF_Face_Done can do the clean-up in case of error. + Protect against invalid string offsets. + (pcf_get_metrics): Clean up code. + Adjust tracing message levels. + Use rough estimate to get array size limit. + (pcf_get_bitmaps): Clean up code. + Adjust tracing message levels. + Use rough estimates to get offset limits. + (pcf_get_encodings): Adjust tracing message level. + (pcf_get_accel): Clean up code. + +2006-06-26 Werner Lemberg + + * src/bdf/bdfdrivr.c (BDF_Face_Init): Handle fonts correctly which + don't have a POINT_SIZE property. This fixes Savannah bug #16914. + +2006-06-26 Jens Claudius + + * src/psaux/t1decode.c (T1_Operator, t1_args_count): Add opcode 15. + (t1_decoder_parse_charstrings): Operator with + opcode 15 pops its two arguments. + Handle the case where the pops of an othersubr may be part of a + subroutine. + Handle unknown othersubrs gracefully: count their operands and let + the following pop operators push the operands as the results onto + the Type1 stack. + Improve handling of setcurrentpoint opcode. + +2006-06-25 Jens Claudius + + The Type 1 parser now skips over top-level procedures as required + for a `Simplified Parser'. This makes the parser more robust as it + doesn't poke around in PostScript code. Additionally, it makes the + FontDirectory hackery in src/type1/t1load.c unnecessary. + + * src/psaux/psobjs.c (IS_OCTAL_DIGIT): New macro. + (skip_literal_string): Add FT_Error as return value. + Handle escapes better. + (skip_string): Add FT_Error as return value. + Don't set `parser->error' but return error code directly. + (skip_procedure): New function. + (ps_parser_skip_PS_token): Handle procedures. + Update code. + (ps_parser_to_token): Update code. + (ps_parser_load_field_table): Handle bbox entries also. + + * src/type1/t1load.c (parse_dict): Remove FontDirectory hackery. + Add commented-out code for synthetic fonts. + +2006-06-24 Eugeniy Meshcheryakov + + Fix two hinting bugs as reported in + http://lists.gnu.org/archive/html/freetype-devel/2006-06/msg00057.html. + + * include/freetype/internal/tttypes.h (TT_GlyphZoneRec): Add + `first_point' member. + + * src/truetype/ttgload.c (tt_prepare_zone): Initialize + `first_point'. + (TT_Process_Composite_Glyph): Always untouch points. + + * src/truetype/ttinterp.c (Ins_SHC): Fix computation of + `first_point' and `last_point' in case of composite glyphs. + (Ins_IUP): Fix computation of `end_point'. + +2006-06-22 suzuki toshiya + + Insert EndianS16_BtoN and EndianS32_BtoN as workaround for Intel + Mac. The original patch was written by David Sachitano and Lawrence + Coopet, and modified by Sean McBride for MPW compatibility. Only + required data are converted; unused data are left in big endian. + + * src/base/ftmac.c: Include for byteorder macros for non + Mac OS X platforms. + (OS_INLINE): Undefine before definition. + (count_faces_sfnt): Insert EndianS16_BtoN to parse the header of + FontAssociation table in FOND resource. + (count_faces_scalable): Insert EndianS16_BtoN to parse the header + and fontSize at each entry of FontAssociation table in FOND + resource. + (parse_fond): Insert EndianS16_BtoN and EndianS32_BtoN to parse + ffStylOff of FamilyRecord header of FOND resource, the header, + fontSize, fontID at each entry of FontAssociation table, and + StyleMapping table. + (count_faces): Call `HUnlock' after all FOND utilization. + +2006-06-08 suzuki toshiya + + Public API of TrueTypeGX, OpenType, and classic kern table validator + should return `FT_Err_Unimplemented_Feature' if validation service + is unavailable (disabled in `modules.cfg'). It is originally + suggested by David Turner, cf. + http://lists.gnu.org/archive/html/freetype-devel/2005-11/msg00078.html + + * src/base/ftgxval.c (FT_TrueTypeGX_Validate): Return + FT_Err_Unimplemented_Feature if TrueTypeGX validation service is + unavailable. + (FT_ClassicKern_Validate): Return FT_Err_Unimplemented_Feature if + classic kern table validation service is unavailable. + + * src/base/ftotval.c (FT_OpenType_Validate): Return + FT_Err_Unimplemented_Feature if OpenType validation service is + unavailable. + +2006-06-08 Werner Lemberg + + * src/bdf/bdflib.c (bdf_load_font): Fix memory leaks in case of + errors. + +2006-06-07 David Turner + + * src/type1/t1afm.c (KERN_INDEX): Make it more robust. + (T1_Read_Metrics): Fix memory leak which happened when the metrics + file doesn't have kerning pairs. This fixes Savannah bug #16768. + +2006-06-06 David Turner + + Fix memory leak described in Savannah bug #16759. + + We change `ps_unicodes_init' so that it also takes a + `free_glyph_name' callback to release the glyph names returned by + `get_glyph_name' + + * include/freetype/internal/services/svpscmap.h (PS_Glyph_NameFunc): + Renamed to ... + (PS_GetGlyphNameFunc): This. + (PS_FreeGlyphNameFunc): New typedef. + (PS_Unicodes_InitFunc): Add variable for PS_FreeGlyphNameFunc. + + * src/cff/cffcmap.c (cff_sid_to_glyph_name): Use `TT_Face' for first + argument. + (cff_sid_free_glyph_name): New function. + (cff_cmap_unicode_init): Updated. + + * src/psaux/t1cmap.c (t1_cmap_unicode_init): Updated. + + * src/psnames/psmodule.c (ps_unicodes_init): Add variable for + PS_FreeGlyphNameFunc and use it. + + +2006-06-04 David Turner + + * src/base/ftutil.c (ft_mem_qrealloc): Fix the function to accept + `item_size == 0' as well -- though this sounds weird, it can + theoretically happen. This fixes Savannah bug #16669. + + * src/pfr/pfrobjs.c (pfr_face_init): Fix the computation + of `face->num_glyphs' which missed the last glyph, due to + the offset-by-1 computation, since the PFR format doesn't + guarantee that glyph index 0 corresponds to the `missing + glyph. This fixes Savannah bug #16668. + +2006-05-25 Werner Lemberg + + * builds/unix/unix-cc.in (LINK_LIBRARY): Don't comment out + `-no-undefined'. Reported by Christian Biesinger. + +2006-05-19 Brian Weed + + * builds/win32/visualc/freetype.dsp: Release libraries no longer + have debug information, and debug libraries use `C7 compatible' + debug info. + +2006-05-19 suzuki toshiya + + Apply patch by Derek Clegg to fix two memory leaks in the MacOS + resource fork handler. This fixes Savannah bug #16631. + + * src/base/ftobjs.c (load_face_in_embedded_rfork): Replace + `FT_Stream_Close' by `FT_Stream_Free' to fix memory leak. + + * src/base/ftrfrk.c (raccess_guess_linux_double_from_file_name): + Replace `FT_Stream_Close' by `FT_Stream_Free' to fix memory leak. + +2006-05-19 suzuki toshiya + + * build/unix/configure.raw: Add a fallback to disable Carbon + dependency, if configured with no options on Mac OS X. + +2006-05-19 suzuki toshiya + + * src/base/ftmac.c (open_face_from_buffer): Deallocate stream when + its content cannot be parsed as supported font. This fixes + the second part of Savannah bug #16590. + +2006-05-18 Werner Lemberg + + * src/truetype/ttgload.c (TT_Load_Composite_Glyph) + [FT_CONFIG_OPTION_BYTECODE_INTERPRETER]: Make it compilable again. + +2006-05-17 David Turner + + This is a major patch used to drastically improve the performance of + loading glyphs. This both speeds up loading the glyph vectors + themselves and the auto-fitter module. + + We now use inline assembler code with GCC to implement `FT_MulFix', + which is probably the most important function related to the + engine's performance. + + The resulting speed-up is about 25%. + + + * include/freetype/internal/tttypes.h (TT_LoaderRec): Add fields + `cursor' and `limit'. + + * src/autofit/afangles.c (af_corner_is_flat, af_corner_orientation): + New functions. + (AF_ATAN_BITS, af_arctan, af_angle_atan): Comment out. + [TEST]: Remove. + + * src/autofit/afcjk.c (AF_Script_UniRangeRec): Comment out test + code. + + * src/autofit/afhints.c (af_axis_hints_new_segment): Don't call + `FT_ZERO' + (af_direction_compute, af_glyph_hints_compute_inflections): Rewritten. + (af_glyph_hints_reload: Rewrite recognition of weak points. + + * src/autofit/aflatin.c (af_latin_hints_compute_segments): Move + constant values out of the loops. + + * src/autofit/aftypes.h: Updated. + + * src/base/ftcalc.c (FT_MulFix): Use inline assembler code. + + * src/base/ftoutln.c (FT_Outline_Get_Orientation): Use vector + product to get orientation. + + * src/gzip/ftgzip.c (ft_get_uncompressed_size): New function. + (FT_Stream_OpenGzip): Use it to handle small files directly in + memory. + + * src/psaux/psconv.c (PS_Conv_ASCIIHexDecode, PS_ConvEexecDecode): + Improve performance. + + * src/truetype/ttgload.c (TT_Access_Glyph_Frame): Set `cursor' and + `limit'. + + (TT_Load_Glyph_Header, TT_Load_Simple_Glyph, + TT_Load_Composite_Glyph): Updated. Add threshold to protect against + exceedingly large values of number of contours. Speed up by + reducing the number of loops. + + * src/type1/t1gload.c (T1_Load_Glyph): Don't apply unit matrix. + + + * src/cache/ftccmap.c (FTC_CMapCache_Lookup): Change the threshold + used to detect rogue clients from 4 to 16. This is to prevent some + segmentation faults with fonts like `KozMinProVI-Regular.otf' which + comes from the Japanese Adobe Reader Asian Font pack. + +2007-05-17 Werner Lemberg + + * src/cff/cffload.c (cff_font_done): Deallocate subfont array. This + fixes the first part of Savannah bug #16590. + +2006-05-16 Werner Lemberg + + * docs/PROBLEMS: Updated icl issues. + +---------------------------------------------------------------------------- + +Copyright 2006, 2007, 2008, 2009, 2010 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, modified, +and distributed under the terms of the FreeType project license, +LICENSE.TXT. By continuing to use, modify, or distribute this file you +indicate that you have read the license and understand and accept it +fully. + + +Local Variables: +version-control: never +coding: utf-8 +End: diff --git a/Jamfile b/Jamfile new file mode 100644 index 0000000..313bda6 --- /dev/null +++ b/Jamfile @@ -0,0 +1,204 @@ +# FreeType 2 top Jamfile. +# +# Copyright 2001-2011 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# The HDRMACRO is already defined in FTJam and is used to add +# the content of certain macros to the list of included header +# files. +# +# We can compile FreeType 2 with classic Jam however thanks to +# the following code +# +if ! $(JAM_TOOLSET) +{ + rule HDRMACRO + { + # nothing + } +} + + +# We need to invoke a SubDir rule if the FT2 source directory top is not the +# current directory. This allows us to build FreeType 2 as part of a larger +# project easily. +# +if $(FT2_TOP) != $(DOT) +{ + SubDir FT2_TOP ; +} + + +# The following macros define the include directory, the source directory, +# and the final library name (without library extensions). They can be +# replaced by other definitions when the library is compiled as part of +# a larger project. +# + +# Name of FreeType include directory during compilation. +# This is relative to FT2_TOP. +# +FT2_INCLUDE_DIR ?= include ; + +# Name of FreeType source directory during compilation. +# This is relative to FT2_TOP. +# +FT2_SRC_DIR ?= src ; + +# Name of final library, without extension. +# +FT2_LIB ?= $(LIBPREFIX)freetype ; + + +# Define FT2_BUILD_INCLUDE to point to your build-specific directory. +# This is prepended to FT2_INCLUDE_DIR. It can be used to specify +# the location of a custom which will point to custom +# versions of `ftmodule.h' and `ftoption.h', for example. +# +FT2_BUILD_INCLUDE ?= ; + +# The list of modules to compile on any given build of the library. +# By default, this will contain _all_ modules defined in FT2_SRC_DIR. +# +# IMPORTANT: You'll need to change the content of `ftmodule.h' as well +# if you modify this list or provide your own. +# +FT2_COMPONENTS ?= autofit # auto-fitter + base # base component (public APIs) + bdf # BDF font driver + cache # cache sub-system + cff # CFF/CEF font driver + cid # PostScript CID-keyed font driver + pcf # PCF font driver + bzip2 # support for bzip2-compressed PCF font + gzip # support for gzip-compressed PCF font + lzw # support for LZW-compressed PCF font + pfr # PFR/TrueDoc font driver + psaux # common PostScript routines module + pshinter # PostScript hinter module + psnames # PostScript names handling + raster # monochrome rasterizer + smooth # anti-aliased rasterizer + sfnt # SFNT-based format support routines + truetype # TrueType font driver + type1 # PostScript Type 1 font driver + type42 # PostScript Type 42 (embedded TrueType) driver + winfonts # Windows FON/FNT font driver + ; + + +# Don't touch. +# +FT2_INCLUDE = $(FT2_BUILD_INCLUDE) + [ FT2_SubDir $(FT2_INCLUDE_DIR) ] ; + +FT2_SRC = [ FT2_SubDir $(FT2_SRC_DIR) ] ; + +# Location of API Reference Documentation +# +if $(DOC_DIR) +{ + DOC_DIR = $(DOCDIR:T) ; +} +else +{ + DOC_DIR = docs/reference ; +} + + +# Only used by FreeType developers. +# +if $(DEBUG_HINTER) +{ + CCFLAGS += -DDEBUG_HINTER ; +} + + +# We need `freetype2/include' in the current include path in order to +# compile any part of FreeType 2. +#: updating documentation for upcoming release + +HDRS += $(FT2_INCLUDE) ; + + +# We need to #define FT2_BUILD_LIBRARY so that our sources find the +# internal headers +# +DEFINES += FT2_BUILD_LIBRARY ; + +# Uncomment the following line if you want to build individual source files +# for each FreeType 2 module. This is only useful during development, and +# is better defined as an environment variable anyway! +# +# FT2_MULTI = true ; + + +# The file is used to define macros that are +# later used in #include statements. It needs to be parsed in order to +# record these definitions. +# +HDRMACRO [ FT2_SubDir include freetype config ftheader.h ] ; +HDRMACRO [ FT2_SubDir include freetype internal internal.h ] ; + + +# Now include the Jamfile in `freetype2/src', used to drive the compilation +# of each FreeType 2 component and/or module. +# +SubInclude FT2_TOP $(FT2_SRC_DIR) ; + +# Handle the generation of the `ftexport.sym' file which contain the list +# of exported symbols. This can be used on Unix by libtool. +# +SubInclude FT2_TOP $(FT2_SRC_DIR) tools ; + +rule GenExportSymbols +{ + local apinames = apinames$(SUFEXE) ; + local headers = [ Glob $(2) : *.h ] ; + + LOCATE on $(1) = $(ALL_LOCATE_TARGET) ; + + APINAMES on $(1) = apinames$(SUFEXE) ; + + Depends $(1) : $(apinames) $(headers) ; + GenExportSymbols1 $(1) : $(headers) ; + Clean clean : $(1) ; +} + +actions GenExportSymbols1 bind APINAMES +{ + $(APINAMES) $(2) > $(1) +} + +GenExportSymbols ftexport.sym : include/freetype include/freetype/cache ; + +# Test files (hinter debugging). Only used by FreeType developers. +# +if $(DEBUG_HINTER) +{ + SubInclude FT2_TOP tests ; +} + +rule RefDoc +{ + Depends $1 : all ; + NotFile $1 ; + Always $1 ; +} + +actions RefDoc +{ + python $(FT2_SRC)/tools/docmaker/docmaker.py --prefix=ft2 --title=FreeType-2.4.9 --output=$(DOC_DIR) $(FT2_INCLUDE)/freetype/*.h $(FT2_INCLUDE)/freetype/config/*.h +} + +RefDoc refdoc ; + + +# end of top Jamfile diff --git a/Jamrules b/Jamrules new file mode 100644 index 0000000..d8d1c7e --- /dev/null +++ b/Jamrules @@ -0,0 +1,71 @@ +# FreeType 2 JamRules. +# +# Copyright 2001, 2002, 2003 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# This file contains the Jam rules needed to build the FreeType 2 library. +# It is shared by all Jamfiles and is included only once in the build +# process. +# + + +# Call SubDirHdrs on a list of directories. +# +rule AddSubDirHdrs +{ + local x ; + + for x in $(<) + { + SubDirHdrs $(x) ; + } +} + + +# Determine prefix of library file. We must use "libxxxxx" on Unix systems, +# while all other simply use the real name. +# +if $(UNIX) +{ + LIBPREFIX ?= lib ; +} +else +{ + LIBPREFIX ?= "" ; +} + +# FT2_TOP contains the location of the FreeType source directory. You can +# set it to a specific value if you want to compile the library as part of a +# larger project. +# +FT2_TOP ?= $(DOT) ; + +# Define a new rule used to declare a sub directory of the Nirvana source +# tree. +# +rule FT2_SubDir +{ + if $(FT2_TOP) = $(DOT) + { + return [ FDirName $(<) ] ; + } + else + { + return [ FDirName $(FT2_TOP) $(<) ] ; + } +} + +# We also set ALL_LOCATE_TARGET in order to place all object and library +# files in "objs". +# +ALL_LOCATE_TARGET ?= [ FT2_SubDir objs ] ; + + +# end of Jamrules diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..c1fa16c --- /dev/null +++ b/Makefile @@ -0,0 +1,34 @@ +# +# FreeType 2 build system -- top-level Makefile +# + + +# Copyright 1996-2000, 2002, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Project names +# +PROJECT := freetype +PROJECT_TITLE := FreeType + +# The variable TOP_DIR holds the path to the topmost directory in the project +# engine source hierarchy. If it is not defined, default it to `.'. +# +TOP_DIR ?= . + +# The variable OBJ_DIR gives the location where object files and the +# FreeType library are built. +# +OBJ_DIR ?= $(TOP_DIR)/objs + + +include $(TOP_DIR)/builds/toplevel.mk + +# EOF diff --git a/README b/README new file mode 100644 index 0000000..84b1c44 --- /dev/null +++ b/README @@ -0,0 +1,57 @@ + FreeType 2.4.9 + ============== + + Please read the docs/CHANGES file, it contains IMPORTANT + INFORMATION. + + Read the files `docs/INSTALL' for installation instructions. + + See the file `docs/LICENSE.TXT' for the available licenses. Note + that we use ranges (`2008-2010') for copyright years also instead of + listing individual years (`2008, 2009, 2010'). + + The FreeType 2 API reference is located in `docs/reference'; use the + file `ft2-doc.html' as the top entry point. Additional + documentation is available as a separate package from our sites. Go + to + + http://download.savannah.gnu.org/releases/freetype/ + + and download one of the following files. + + freetype-doc-2.4.9.tar.bz2 + freetype-doc-2.4.9.tar.gz + ftdoc249.zip + + + Bugs + ==== + + Please report bugs by e-mail to `freetype-devel@nongnu.org'. Don't + forget to send a detailed explanation of the problem -- there is + nothing worse than receiving a terse message that only says `it + doesn't work'. + + Alternatively, you may submit a bug report at + + https://savannah.nongnu.org/bugs/?group=freetype + + + Enjoy! + + + The FreeType Team + +---------------------------------------------------------------------- + +Copyright 2006-2011 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute +this file you indicate that you have read the license and understand +and accept it fully. + + +--- end of README --- diff --git a/README.git b/README.git new file mode 100644 index 0000000..47cb242 --- /dev/null +++ b/README.git @@ -0,0 +1,46 @@ +The git archive doesn't contain pre-built configuration scripts for +UNIXish platforms. To generate them say + + sh autogen.sh + +which in turn depends on the following packages: + + automake (1.10.1) + libtool (2.2.4) + autoconf (2.62) + +The versions given in parentheses are known to work. Newer versions +should work too, of course. Note that autogen.sh also sets up proper +file permissions for the `configure' and auxiliary scripts. + +The autogen.sh script now checks the version of above three packages +whether they match the numbers above. Otherwise it will complain and +suggest either upgrading or using an environment variable to point to +a more recent version of the required tool(s). + +Note that `aclocal' is provided by the `automake' package on Linux, +and that `libtoolize' is called `glibtoolize' on Darwin (OS X). + + +For static builds which don't use platform specific optimizations, no +configure script is necessary at all; saying + + make setup ansi + make + +should work on all platforms which have GNU make (or makepp). + + +---------------------------------------------------------------------- + +Copyright 2005, 2006, 2007, 2008, 2009, 2010 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute +this file you indicate that you have read the license and understand +and accept it fully. + + +--- end of README.git --- diff --git a/TC/_export_env.sh b/TC/_export_env.sh new file mode 100755 index 0000000..06b6671 --- /dev/null +++ b/TC/_export_env.sh @@ -0,0 +1,9 @@ +#!/bin/sh + +. ./config +export TET_INSTALL_PATH=$TET_INSTALL_HOST_PATH # tetware root path +export TET_TARGET_PATH=$TET_INSTALL_PATH/tetware-target # tetware target path +export PATH=$TET_TARGET_PATH/bin:$PATH +export LD_LIBRARY_PATH=$TET_TARGET_PATH/lib/tet3:$LD_LIBRARY_PATH +export TET_ROOT=$TET_TARGET_PATH +export FT2_TC_ROOT_PATH=/mnt/nfs/DTS/freetype/ft2demos diff --git a/TC/_export_target_env.sh b/TC/_export_target_env.sh new file mode 100755 index 0000000..5ddaa53 --- /dev/null +++ b/TC/_export_target_env.sh @@ -0,0 +1,7 @@ +#!/bin/sh +. ./config +export TET_INSTALL_PATH=$TET_INSTALL_TARGET_PATH # path to path +export TET_TARGET_PATH=$TET_INSTALL_PATH/tetware-target +export PATH=$TET_TARGET_PATH/bin:$PATH +export LD_LIBRARY_PATH=$TET_TARGET_PATH/lib/tet3:$LD_LIBRARY_PATH +export TET_ROOT=$TET_TARGET_PATH diff --git a/TC/build.sh b/TC/build.sh new file mode 100755 index 0000000..72aad6c --- /dev/null +++ b/TC/build.sh @@ -0,0 +1,16 @@ +#!/bin/sh + +. ./_export_env.sh # setting environment variables + +export TET_SUITE_ROOT=`pwd` +FILE_NAME_EXTENSION=`date +%s` + +RESULT_DIR=results +HTML_RESULT=$RESULT_DIR/build-tar-result-$FILE_NAME_EXTENSION.html +JOURNAL_RESULT=$RESULT_DIR/build-tar-result-$FILE_NAME_EXTENSION.journal + +mkdir -p $RESULT_DIR + +tcc -c -p ./ +tcc -b -j $JOURNAL_RESULT -p ./ +grw -c 7 -f chtml -o $HTML_RESULT $JOURNAL_RESULT diff --git a/TC/clean.sh b/TC/clean.sh new file mode 100755 index 0000000..29743e0 --- /dev/null +++ b/TC/clean.sh @@ -0,0 +1,11 @@ +#!/bin/sh + +. ./_export_env.sh # setting environment variables + +export TET_SUITE_ROOT=`pwd` +RESULT_DIR=results + +tcc -c -p ./ # executing tcc, with clean option (-c) +rm -r $RESULT_DIR +rm -r tet_tmp_dir +rm testcase/tet_captured diff --git a/TC/config b/TC/config new file mode 100755 index 0000000..e8c668e --- /dev/null +++ b/TC/config @@ -0,0 +1,2 @@ +TET_INSTALL_HOST_PATH=/view/DTS/TETware +TET_INSTALL_TARGET_PATH=/mnt/nfs/DTS/TETware diff --git a/TC/execute.sh b/TC/execute.sh new file mode 100755 index 0000000..a4f6095 --- /dev/null +++ b/TC/execute.sh @@ -0,0 +1,15 @@ +#!/bin/sh + +. ./_export_target_env.sh # setting environment variables + +export TET_SUITE_ROOT=`pwd` +FILE_NAME_EXTENSION=`date +%s` + +RESULT_DIR=results +HTML_RESULT=$RESULT_DIR/exec-tar-result-$FILE_NAME_EXTENSION.html +JOURNAL_RESULT=$RESULT_DIR/exec-tar-result-$FILE_NAME_EXTENSION.journal + +mkdir -p $RESULT_DIR + +tcc -e -j $JOURNAL_RESULT -p ./ +grw -c 3 -f chtml -o $HTML_RESULT $JOURNAL_RESULT diff --git a/TC/testcase/Makefile b/TC/testcase/Makefile new file mode 100755 index 0000000..7ed8eb3 --- /dev/null +++ b/TC/testcase/Makefile @@ -0,0 +1,24 @@ +CC ?= gcc + +C_FILES = $(shell ls *.c) + +PKGS = freetype2 capi-base-common dlog gthread-2.0 + +LDFLAGS = `pkg-config --libs $(PKGS)` +LDFLAGS += $(TET_ROOT)/lib/tet3/tcm_s.o +LDFLAGS += -L$(TET_ROOT)/lib/tet3 -ltcm_s +LDFLAGS += -L$(TET_ROOT)/lib/tet3 -lapi_s + +CFLAGS = -I. `pkg-config --cflags $(PKGS)` +CFLAGS += -I$(TET_ROOT)/inc/tet3 +CFLAGS += -Wall + +TCS := $(shell ls -1 *.c | cut -d. -f1) + +all: $(TCS) + +%: %.c + $(CC) -o $@ $< $(CFLAGS) $(LDFLAGS) + +clean: + rm -f $(TCS) diff --git a/TC/testcase/tslist b/TC/testcase/tslist new file mode 100755 index 0000000..7f1d607 --- /dev/null +++ b/TC/testcase/tslist @@ -0,0 +1,9 @@ +/testcase/utc_ft_bench +/testcase/utc_ft_diff +/testcase/utc_ft_dump +/testcase/utc_ft_gamma +/testcase/utc_ft_grid +/testcase/utc_ft_lint +/testcase/utc_ft_multi +/testcase/utc_ft_string +/testcase/utc_ft_view diff --git a/TC/testcase/utc_ft_bench.c b/TC/testcase/utc_ft_bench.c new file mode 100755 index 0000000..557375a --- /dev/null +++ b/TC/testcase/utc_ft_bench.c @@ -0,0 +1,36 @@ +#include + +static void startup(void); +static void cleanup(void); + +void (*tet_startup)(void) = startup; +void (*tet_cleanup)(void) = cleanup; + +static void utc_ft_bench(void); + +struct tet_testlist tet_testlist[] = { + { utc_ft_bench, 1 }, + { NULL, 0 }, +}; + +static void startup(void) +{ + /* start of TC */ +} + +static void cleanup(void) +{ + /* end of TC */ +} + +static void utc_ft_bench(void) +{ + char buf[128]; + int ret; + sprintf(buf, "cd %s && ./ftbench /usr/share/fonts/HelveticaNeueRegular.ttf ", getenv("FT2_TC_ROOT_PATH")); + ret = system(buf); + if(WEXITSTATUS(ret) == 0) + dts_pass("utc_ft_bench"); + else + dts_fail("utc_ft_bench"); +} diff --git a/TC/testcase/utc_ft_diff.c b/TC/testcase/utc_ft_diff.c new file mode 100755 index 0000000..9599fc7 --- /dev/null +++ b/TC/testcase/utc_ft_diff.c @@ -0,0 +1,36 @@ +#include + +static void startup(void); +static void cleanup(void); + +void (*tet_startup)(void) = startup; +void (*tet_cleanup)(void) = cleanup; + +static void utc_ft_diff(void); + +struct tet_testlist tet_testlist[] = { + { utc_ft_diff, 1 }, + { NULL, 0 }, +}; + +static void startup(void) +{ + /* start of TC */ +} + +static void cleanup(void) +{ + /* end of TC */ +} + +static void utc_ft_diff(void) +{ + char buf[128]; + int ret; + sprintf(buf, "cd %s && ./ftdiff /usr/share/fonts/HelveticaNeueRegular.ttf ", getenv("FT2_TC_ROOT_PATH")); + ret = system(buf); + if(WEXITSTATUS(ret) == 0) + dts_pass("utc_ft_diff"); + else + dts_fail("utc_ft_diff"); +} diff --git a/TC/testcase/utc_ft_dump.c b/TC/testcase/utc_ft_dump.c new file mode 100755 index 0000000..a0b6a2c --- /dev/null +++ b/TC/testcase/utc_ft_dump.c @@ -0,0 +1,36 @@ +#include + +static void startup(void); +static void cleanup(void); + +void (*tet_startup)(void) = startup; +void (*tet_cleanup)(void) = cleanup; + +static void utc_ft_dump(void); + +struct tet_testlist tet_testlist[] = { + { utc_ft_dump, 1 }, + { NULL, 0 }, +}; + +static void startup(void) +{ + /* start of TC */ +} + +static void cleanup(void) +{ + /* end of TC */ +} + +static void utc_ft_dump(void) +{ + char buf[128]; + int ret; + sprintf(buf, "cd %s && ./ftdump /usr/share/fonts/HelveticaNeueRegular.ttf ", getenv("FT2_TC_ROOT_PATH")); + ret = system(buf); + if(WEXITSTATUS(ret) == 0) + dts_pass("utc_ft_dump"); + else + dts_fail("utc_ft_dump"); +} diff --git a/TC/testcase/utc_ft_gamma.c b/TC/testcase/utc_ft_gamma.c new file mode 100755 index 0000000..6e42a43 --- /dev/null +++ b/TC/testcase/utc_ft_gamma.c @@ -0,0 +1,36 @@ +#include + +static void startup(void); +static void cleanup(void); + +void (*tet_startup)(void) = startup; +void (*tet_cleanup)(void) = cleanup; + +static void utc_ft_gamma(void); + +struct tet_testlist tet_testlist[] = { + { utc_ft_gamma, 1 }, + { NULL, 0 }, +}; + +static void startup(void) +{ + /* start of TC */ +} + +static void cleanup(void) +{ + /* end of TC */ +} + +static void utc_ft_gamma(void) +{ + char buf[128]; + int ret; + sprintf(buf, "cd %s && ./ftgamma", getenv("FT2_TC_ROOT_PATH")); + ret = system(buf); + if(WEXITSTATUS(ret) == 0) + dts_pass("utc_ft_gamma"); + else + dts_fail("utc_ft_gamma"); +} diff --git a/TC/testcase/utc_ft_grid.c b/TC/testcase/utc_ft_grid.c new file mode 100755 index 0000000..bf40ec8 --- /dev/null +++ b/TC/testcase/utc_ft_grid.c @@ -0,0 +1,36 @@ +#include + +static void startup(void); +static void cleanup(void); + +void (*tet_startup)(void) = startup; +void (*tet_cleanup)(void) = cleanup; + +static void utc_ft_grid(void); + +struct tet_testlist tet_testlist[] = { + { utc_ft_grid, 1 }, + { NULL, 0 }, +}; + +static void startup(void) +{ + /* start of TC */ +} + +static void cleanup(void) +{ + /* end of TC */ +} + +static void utc_ft_grid(void) +{ + char buf[128]; + int ret; + sprintf(buf, "cd %s && ./ftgrid 10pt /usr/share/fonts/HelveticaNeueRegular.ttf ", getenv("FT2_TC_ROOT_PATH")); + ret = system(buf); + if(WEXITSTATUS(ret) == 0) + dts_pass("utc_ft_grid"); + else + dts_fail("utc_ft_grid"); +} diff --git a/TC/testcase/utc_ft_lint.c b/TC/testcase/utc_ft_lint.c new file mode 100755 index 0000000..3ce186f --- /dev/null +++ b/TC/testcase/utc_ft_lint.c @@ -0,0 +1,36 @@ +#include + +static void startup(void); +static void cleanup(void); + +void (*tet_startup)(void) = startup; +void (*tet_cleanup)(void) = cleanup; + +static void utc_ft_lint(void); + +struct tet_testlist tet_testlist[] = { + { utc_ft_lint, 1 }, + { NULL, 0 }, +}; + +static void startup(void) +{ + /* start of TC */ +} + +static void cleanup(void) +{ + /* end of TC */ +} + +static void utc_ft_lint(void) +{ + char buf[128]; + int ret; + sprintf(buf, "cd %s && ./ftlint 10ppem /usr/share/fonts/HelveticaNeueRegular.ttf ", getenv("FT2_TC_ROOT_PATH")); + ret = system(buf); + if(WEXITSTATUS(ret) == 0) + dts_pass("utc_ft_lint"); + else + dts_fail("utc_ft_lint"); +} diff --git a/TC/testcase/utc_ft_multi.c b/TC/testcase/utc_ft_multi.c new file mode 100755 index 0000000..e005ceb --- /dev/null +++ b/TC/testcase/utc_ft_multi.c @@ -0,0 +1,36 @@ +#include + +static void startup(void); +static void cleanup(void); + +void (*tet_startup)(void) = startup; +void (*tet_cleanup)(void) = cleanup; + +static void utc_ft_multi(void); + +struct tet_testlist tet_testlist[] = { + { utc_ft_multi, 1 }, + { NULL, 0 }, +}; + +static void startup(void) +{ + /* start of TC */ +} + +static void cleanup(void) +{ + /* end of TC */ +} + +static void utc_ft_multi(void) +{ + char buf[128]; + int ret; + sprintf(buf, "cd %s && ./ftmulti 10ppem /usr/share/fonts/HelveticaNeueRegular.ttf ", getenv("FT2_TC_ROOT_PATH")); + ret = system(buf); + if(WEXITSTATUS(ret) == 0) + dts_pass("utc_ft_multi"); + else + dts_fail("utc_ft_multi"); +} diff --git a/TC/testcase/utc_ft_string.c b/TC/testcase/utc_ft_string.c new file mode 100755 index 0000000..de17b48 --- /dev/null +++ b/TC/testcase/utc_ft_string.c @@ -0,0 +1,36 @@ +#include + +static void startup(void); +static void cleanup(void); + +void (*tet_startup)(void) = startup; +void (*tet_cleanup)(void) = cleanup; + +static void utc_ft_string(void); + +struct tet_testlist tet_testlist[] = { + { utc_ft_string, 1 }, + { NULL, 0 }, +}; + +static void startup(void) +{ + /* start of TC */ +} + +static void cleanup(void) +{ + /* end of TC */ +} + +static void utc_ft_string(void) +{ + char buf[128]; + int ret; + sprintf(buf, "cd %s && ./ftstring 10pt /usr/share/fonts/HelveticaNeueRegular.ttf ", getenv("FT2_TC_ROOT_PATH")); + ret = system(buf); + if(WEXITSTATUS(ret) == 0) + dts_pass("utc_ft_string"); + else + dts_fail("utc_ft_string"); +} diff --git a/TC/testcase/utc_ft_view.c b/TC/testcase/utc_ft_view.c new file mode 100755 index 0000000..33f3c5f --- /dev/null +++ b/TC/testcase/utc_ft_view.c @@ -0,0 +1,36 @@ +#include + +static void startup(void); +static void cleanup(void); + +void (*tet_startup)(void) = startup; +void (*tet_cleanup)(void) = cleanup; + +static void utc_ft_view(void); + +struct tet_testlist tet_testlist[] = { + { utc_ft_view, 1 }, + { NULL, 0 }, +}; + +static void startup(void) +{ + /* start of TC */ +} + +static void cleanup(void) +{ + /* end of TC */ +} + +static void utc_ft_view(void) +{ + char buf[128]; + int ret; + sprintf(buf, "cd %s && ./ftview 10pt /usr/share/fonts/HelveticaNeueRegular.ttf ", getenv("FT2_TC_ROOT_PATH")); + ret = system(buf); + if(WEXITSTATUS(ret) == 0) + dts_pass("utc_ft_view"); + else + dts_fail("utc_ft_view"); +} diff --git a/TC/tet_scen b/TC/tet_scen new file mode 100755 index 0000000..03f029a --- /dev/null +++ b/TC/tet_scen @@ -0,0 +1,7 @@ +all + ^TEST +##### Scenarios for TEST ##### + +# Test scenario +TEST + :include:/testcase/tslist diff --git a/TC/tetbuild.cfg b/TC/tetbuild.cfg new file mode 100755 index 0000000..f7eda55 --- /dev/null +++ b/TC/tetbuild.cfg @@ -0,0 +1,5 @@ +TET_OUTPUT_CAPTURE=True # capture option for build operation checking +TET_BUILD_TOOL=make # build with using make command +TET_BUILD_FILE=-f Makefile # execution file (Makefile) for build +TET_API_COMPLIANT=True # use TET API in Test Case ? +TET_PASS_TC_NAME=True # report passed TC name in Journal file? diff --git a/TC/tetclean.cfg b/TC/tetclean.cfg new file mode 100755 index 0000000..02d7030 --- /dev/null +++ b/TC/tetclean.cfg @@ -0,0 +1,5 @@ +TET_OUTPUT_CAPTURE=True # capture option +TET_CLEAN_TOOL= make clean # clean tool +TET_CLEAN_FILE= Makefile # file for clean +TET_API_COMPLIANT=True # TET API useage +TET_PASS_TC_NAME=True # showing name , passed TC diff --git a/TC/tetexec.cfg b/TC/tetexec.cfg new file mode 100755 index 0000000..ef3e452 --- /dev/null +++ b/TC/tetexec.cfg @@ -0,0 +1,5 @@ +TET_OUTPUT_CAPTURE=True # capturing execution or not +TET_EXEC_TOOL= # ex) exec : execution tool set up/ Optional +TET_EXEC_FILE= # ex) exectool : execution file/ Optional +TET_API_COMPLIANT=True # Test case or Tool usesTET API? +TET_PASS_TC_NAME=True # showing Passed TC name ? diff --git a/autogen.sh b/autogen.sh new file mode 100644 index 0000000..9f2fb6a --- /dev/null +++ b/autogen.sh @@ -0,0 +1,166 @@ +#!/bin/sh + +# Copyright 2005, 2006, 2007, 2008, 2009, 2010 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +run () +{ + echo "running \`$*'" + eval $* + + if test $? != 0 ; then + echo "error while running \`$*'" + exit 1 + fi +} + +get_major_version () +{ + echo $1 | sed -e 's/\([0-9][0-9]*\)\..*/\1/g' +} + +get_minor_version () +{ + echo $1 | sed -e 's/[0-9][0-9]*\.\([0-9][0-9]*\).*/\1/g' +} + +get_patch_version () +{ + # tricky: some version numbers don't include a patch + # separated with a point, but something like 1.4-p6 + patch=`echo $1 | sed -e 's/[0-9][0-9]*\.[0-9][0-9]*\.\([0-9][0-9]*\).*/\1/g'` + if test "$patch" = "$1"; then + patch=`echo $1 | sed -e 's/[0-9][0-9]*\.[0-9][0-9]*\-p\([0-9][0-9]*\).*/\1/g'` + # if there isn't any patch number, default to 0 + if test "$patch" = "$1"; then + patch=0 + fi + fi + echo $patch +} + +# $1: version to check +# $2: minimum version + +compare_to_minimum_version () +{ + MAJOR1=`get_major_version $1` + MAJOR2=`get_major_version $2` + if test $MAJOR1 -lt $MAJOR2; then + echo 0 + return + else + if test $MAJOR1 -gt $MAJOR2; then + echo 1 + return + fi + fi + + MINOR1=`get_minor_version $1` + MINOR2=`get_minor_version $2` + if test $MINOR1 -lt $MINOR2; then + echo 0 + return + else + if test $MINOR1 -gt $MINOR2; then + echo 1 + return + fi + fi + + PATCH1=`get_patch_version $1` + PATCH2=`get_patch_version $2` + if test $PATCH1 -lt $PATCH2; then + echo 0 + else + echo 1 + fi +} + +# check the version of a given tool against a minimum version number +# +# $1: tool path +# $2: tool usual name (e.g. `aclocal') +# $3: tool variable (e.g. `ACLOCAL') +# $4: minimum version to check against +# $5: option field index used to extract the tool version from the +# output of --version + +check_tool_version () +{ + field=$5 + # assume the output of "[TOOL] --version" is "toolname (GNU toolname foo bar) version" + if test "$field"x = x; then + field=3 # default to 3 for all GNU autotools, after filtering enclosed string + fi + version=`$1 --version | head -1 | sed 's/([^)]*)/()/g' | cut -d ' ' -f $field` + version_check=`compare_to_minimum_version $version $4` + if test "$version_check"x = 0x; then + echo "ERROR: Your version of the \`$2' tool is too old." + echo " Minimum version $4 is required (yours is version $version)." + echo " Please upgrade or use the $3 variable to point to a more recent one." + echo "" + exit 1 + fi +} + +if test ! -f ./builds/unix/configure.raw; then + echo "You must be in the same directory as \`autogen.sh'." + echo "Bootstrapping doesn't work if srcdir != builddir." + exit 1 +fi + +# On MacOS X, the GNU libtool is named `glibtool'. +HOSTOS=`uname` +if test "$LIBTOOLIZE"x != x; then + : +elif test "$HOSTOS"x = Darwinx; then + LIBTOOLIZE=glibtoolize +else + LIBTOOLIZE=libtoolize +fi + +if test "$ACLOCAL"x = x; then + ACLOCAL=aclocal +fi + +if test "$AUTOCONF"x = x; then + AUTOCONF=autoconf +fi + +check_tool_version $ACLOCAL aclocal ACLOCAL 1.10.1 +check_tool_version $LIBTOOLIZE libtoolize LIBTOOLIZE 2.2.4 +check_tool_version $AUTOCONF autoconf AUTOCONF 2.62 + +# This sets freetype_major, freetype_minor, and freetype_patch. +eval `sed -nf version.sed include/freetype/freetype.h` + +# We set freetype-patch to an empty value if it is zero. +if test "$freetype_patch" = ".0"; then + freetype_patch= +fi + +cd builds/unix + +echo "generating \`configure.ac'" +sed -e "s;@VERSION@;$freetype_major$freetype_minor$freetype_patch;" \ + < configure.raw > configure.ac + +run aclocal -I . --force +run $LIBTOOLIZE --force --copy --install +run autoconf --force + +chmod +x mkinstalldirs +chmod +x install-sh + +cd ../.. + +chmod +x ./configure + +# EOF diff --git a/builds/amiga/README b/builds/amiga/README new file mode 100644 index 0000000..2b8f8e8 --- /dev/null +++ b/builds/amiga/README @@ -0,0 +1,110 @@ + +README for the builds/amiga subdirectory. + +Copyright 2005 by +Werner Lemberg and Detlef Würkner. + +This file is part of the FreeType project, and may only be used, modified, +and distributed under the terms of the FreeType project license, +LICENSE.TXT. By continuing to use, modify, or distribute this file you +indicate that you have read the license and understand and accept it +fully. + + +The makefile.os4 is for the AmigaOS4 SDK. To use it, type +"make -f makefile.os4", it produces a link library libft2_ppc.a. + +The makefile is for ppc-morphos-gcc-2.95.3-bin.tgz (gcc 2.95.3 hosted on +68k-Amiga producing MorphOS-PPC-binaries from http://www.morphos.de). +To use it, type "make assign", then "make"; it produces a link library +libft2_ppc.a. + +The smakefile is a makefile for Amiga SAS/C 6.58 (no longer available, +latest sold version was 6.50, updates can be found in Aminet). It is +based on the version found in the sourcecode of ttf.library 0.83b for +FreeType 1.3.1 from Richard Griffith (ragriffi@sprynet.com, +http://ragriffi.home.sprynet.com). + +You will also need the latest include files and amiga.lib from the +Amiga web site (http://www.amiga.com/3.9/download/NDK3.9.lha) for +AmigaOS 3.9; the generated code should work under AmigaOS 2.04 and up. + +To use it, call "smake assign" and then "smake" from the builds/amiga +directory. The results are: + +- A link library "ft2_680x0.lib" (where x depends on the setting of + the CPU entry in the smakefile) containing all FreeType2 parts + except of the init code, debugging code, and the system interface + code. + +- ftsystem.o, an object module containing the standard version of the + system interface code which uses fopen() fclose() fread() fseek() + ftell() malloc() realloc() and free() from lib:sc.lib (not pure). + +- ftsystempure.o, an object module containing the pure version of the + system interface code which uses Open() Close() Read() Seek() + ExamineFH() AsmAllocPooled() AsmFreePooled() etc. This version can + be used in both normal programs and in Amiga run-time shared system + librarys (can be linked with lib:libinit.o, no copying of DATA and + BSS hunks for each OpenLibrary() necessary). Source code is in + src/base/ftsystem.c. + +- ftdebug.o, an object module containing the standard version of the + debugging code which uses vprintf() and exit() (not pure). + Debugging can be turned on in FT:include/freetype/config/ftoption.h + and with FT_SetTraceLevel(). + +- ftdebugpure.o, an object module containing the pure version of the + debugging code which uses KVPrintf() from lib:debug.lib and no + exit(). For debugging of Amiga run-time shared system libraries. + Source code is in src/base/ftdebug.c. + +- NO ftinit.o. Because linking with a link library should result in + linking only the needed object modules in it, but standard + ftsystem.o would force ALL FreeType2 modules to be linked to your + program, I decided to use a different scheme: You must #include + FT:src/base/ftinit.c in your sourcecode and specify with #define + statements which modules you need. See + include/freetype/config/ftmodule.h. + + +To use in your own programs: + +- Insert the #define and #include statements from top of + include/freetype/config/ftmodule.h in your source code and uncomment + the #define statements for the FreeType2 modules you need. + +- You can use either PARAMETERS=REGISTER or PARAMETERS=STACK for + calling the FreeType2 functions, because the link library and the + object files are compiled with PARAMETERS=BOTH. + +- "smake assign" (assign "FT:" to the FreeType2 main directory). + +- Compile your program. + +- Link with either ftsystem.o or ftsystempure.o, if debugging enabled + with either ftdebug.o or (ftdebugpure.o and lib:debug.lib), and with + ft2_680x0.lib as link library. + + +To adapt to other compilers: + +- The standard ANSI C maximum length of 31 significant characters in + identifiers is not enough for FreeType2. Check if your compiler has + a minimum length of 40 significant characters or can be switched to + it. "idlen=40" is the option for SAS/C. Setting #define + HAVE_LIMIT_ON_IDENTS in an include file may also work (not tested). + +- Make sure that the include directory in builds/amiga is searched + before the normal FreeType2 include directory, so you are able to + replace problematic include files with your own version (same may be + useful for the src directory). + +- An example of how to replace/workaround a problematic include file + is include/config/ftconfig.h; it changes a #define that would + prevent SAS/C from generating XDEF's where it should do that and + then includes the standard FreeType2 include file. + +Local Variables: +coding: latin-1 +End: diff --git a/builds/amiga/include/freetype/config/ftconfig.h b/builds/amiga/include/freetype/config/ftconfig.h new file mode 100644 index 0000000..c2c2ac8 --- /dev/null +++ b/builds/amiga/include/freetype/config/ftconfig.h @@ -0,0 +1,55 @@ +/***************************************************************************/ +/* */ +/* ftconfig.h */ +/* */ +/* Amiga-specific configuration file (specification only). */ +/* */ +/* Copyright 2005, 2006, 2007 by */ +/* Werner Lemberg and Detlef Würkner. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/* + * This is an example how to override the default FreeType2 header files + * with Amiga-specific changes. When the compiler searches this directory + * before the default directory, we can do some modifications. + * + * Here we must change FT_EXPORT_DEF so that SAS/C does + * generate the needed XDEFs. + */ + +#if 0 +#define FT_EXPORT_DEF( x ) extern x +#endif + +#undef FT_EXPORT_DEF +#define FT_EXPORT_DEF( x ) x + +/* Now include the original file */ +#ifndef __MORPHOS__ +#ifdef __SASC +#include "FT:include/freetype/config/ftconfig.h" +#else +#include "/FT/include/freetype/config/ftconfig.h" +#endif +#else +/* We must define that, it seems that + * lib/gcc-lib/ppc-morphos/2.95.3/include/syslimits.h is missing in + * ppc-morphos-gcc-2.95.3-bin.tgz (gcc for 68k producing MorphOS PPC elf + * binaries from http://www.morphos.de) + */ +#define _LIBC_LIMITS_H_ +#include "/FT/include/freetype/config/ftconfig.h" +#endif + +/* +Local Variables: +coding: latin-1 +End: +*/ diff --git a/builds/amiga/include/freetype/config/ftmodule.h b/builds/amiga/include/freetype/config/ftmodule.h new file mode 100644 index 0000000..5873bab --- /dev/null +++ b/builds/amiga/include/freetype/config/ftmodule.h @@ -0,0 +1,160 @@ +/***************************************************************************/ +/* */ +/* ftmodule.h */ +/* */ +/* Amiga-specific FreeType module selection. */ +/* */ +/* Copyright 2005 by */ +/* Werner Lemberg and Detlef Würkner. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/* + * To avoid that all your programs include all FreeType modules, + * you copy the following piece of source code into your own + * source file and specify which modules you really need in your + * application by uncommenting the appropriate lines. + */ +/* +//#define FT_USE_AUTOFIT // autofitter +//#define FT_USE_RASTER // monochrome rasterizer +//#define FT_USE_SMOOTH // anti-aliasing rasterizer +//#define FT_USE_TT // truetype font driver +//#define FT_USE_T1 // type1 font driver +//#define FT_USE_T42 // type42 font driver +//#define FT_USE_T1CID // cid-keyed type1 font driver // no cmap support +//#define FT_USE_CFF // opentype font driver +//#define FT_USE_BDF // bdf bitmap font driver +//#define FT_USE_PCF // pcf bitmap font driver +//#define FT_USE_PFR // pfr font driver +//#define FT_USE_WINFNT // windows .fnt|.fon bitmap font driver +//#define FT_USE_OTV // opentype validator +//#define FT_USE_GXV // truetype gx validator +#include "FT:src/base/ftinit.c" +*/ + +/* Make sure that the needed support modules are built in. + * Dependencies can be found by searching for FT_Get_Module. + */ + +#ifdef FT_USE_T42 +#define FT_USE_TT +#endif + +#ifdef FT_USE_TT +#define FT_USE_SFNT +#endif + +#ifdef FT_USE_CFF +#define FT_USE_SFNT +#define FT_USE_PSHINT +#define FT_USE_PSNAMES +#endif + +#ifdef FT_USE_T1 +#define FT_USE_PSAUX +#define FT_USE_PSHINT +#define FT_USE_PSNAMES +#endif + +#ifdef FT_USE_T1CID +#define FT_USE_PSAUX +#define FT_USE_PSHINT +#define FT_USE_PSNAMES +#endif + +#ifdef FT_USE_PSAUX +#define FT_USE_PSNAMES +#endif + +#ifdef FT_USE_SFNT +#define FT_USE_PSNAMES +#endif + +/* Now include the modules */ + +#ifdef FT_USE_AUTOFIT +FT_USE_MODULE( FT_Module_Class, autofit_module_class ) +#endif + +#ifdef FT_USE_TT +FT_USE_MODULE( FT_Driver_ClassRec, tt_driver_class ) +#endif + +#ifdef FT_USE_T1 +FT_USE_MODULE( FT_Driver_ClassRec, t1_driver_class ) +#endif + +#ifdef FT_USE_CFF +FT_USE_MODULE( FT_Driver_ClassRec, cff_driver_class ) +#endif + +#ifdef FT_USE_T1CID +FT_USE_MODULE( FT_Driver_ClassRec, t1cid_driver_class ) +#endif + +#ifdef FT_USE_PFR +FT_USE_MODULE( FT_Driver_ClassRec, pfr_driver_class ) +#endif + +#ifdef FT_USE_T42 +FT_USE_MODULE( FT_Driver_ClassRec, t42_driver_class ) +#endif + +#ifdef FT_USE_WINFNT +FT_USE_MODULE( FT_Driver_ClassRec, winfnt_driver_class ) +#endif + +#ifdef FT_USE_PCF +FT_USE_MODULE( FT_Driver_ClassRec, pcf_driver_class ) +#endif + +#ifdef FT_USE_PSAUX +FT_USE_MODULE( FT_Module_Class, psaux_module_class ) +#endif + +#ifdef FT_USE_PSNAMES +FT_USE_MODULE( FT_Module_Class, psnames_module_class ) +#endif + +#ifdef FT_USE_PSHINT +FT_USE_MODULE( FT_Module_Class, pshinter_module_class ) +#endif + +#ifdef FT_USE_RASTER +FT_USE_MODULE( FT_Renderer_Class, ft_raster1_renderer_class ) +#endif + +#ifdef FT_USE_SFNT +FT_USE_MODULE( FT_Module_Class, sfnt_module_class ) +#endif + +#ifdef FT_USE_SMOOTH +FT_USE_MODULE( FT_Renderer_Class, ft_smooth_renderer_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_smooth_lcd_renderer_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_smooth_lcdv_renderer_class ) +#endif + +#ifdef FT_USE_OTV +FT_USE_MODULE( FT_Module_Class, otv_module_class ) +#endif + +#ifdef FT_USE_BDF +FT_USE_MODULE( FT_Driver_ClassRec, bdf_driver_class ) +#endif + +#ifdef FT_USE_GXV +FT_USE_MODULE( FT_Module_Class, gxv_module_class ) +#endif + +/* +Local Variables: +coding: latin-1 +End: +*/ diff --git a/builds/amiga/makefile b/builds/amiga/makefile new file mode 100644 index 0000000..379883d --- /dev/null +++ b/builds/amiga/makefile @@ -0,0 +1,299 @@ +# +# Makefile for FreeType2 link library using ppc-morphos-gcc-2.95.3-bin.tgz +# (gcc 2.95.3 hosted on 68k-Amiga producing MorphOS-PPC-binaries from +# http://www.morphos.de) +# + + +# Copyright 2005, 2006, 2007, 2009 by +# Werner Lemberg and Detlef Würkner. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# +# to build from the builds/amiga directory call +# +# make assign +# make +# +# Your programs source code should start with this +# (uncomment the parts you do not need to keep the program small): +# ---8<--- +#define FT_USE_AUTOFIT // autofitter +#define FT_USE_RASTER // monochrome rasterizer +#define FT_USE_SMOOTH // anti-aliasing rasterizer +#define FT_USE_TT // truetype font driver +#define FT_USE_T1 // type1 font driver +#define FT_USE_T42 // type42 font driver +#define FT_USE_T1CID // cid-keyed type1 font driver +#define FT_USE_CFF // opentype font driver +#define FT_USE_BDF // bdf bitmap font driver +#define FT_USE_PCF // pcf bitmap font driver +#define FT_USE_PFR // pfr font driver +#define FT_USE_WINFNT // windows .fnt|.fon bitmap font driver +#define FT_USE_OTV // opentype validator +#define FT_USE_GXV // truetype gx validator +#include "FT:src/base/ftinit.c" +# ---8<--- +# +# link your programs with libft2_ppc.a and either ftsystem.ppc.o or ftsystempure.ppc.o +# (and either ftdebug.ppc.o or ftdebugpure.ppc.o if you enabled FT_DEBUG_LEVEL_ERROR or +# FT_DEBUG_LEVEL_TRACE in include/freetype/config/ftoption.h). + +all: libft2_ppc.a ftsystem.ppc.o ftsystempure.ppc.o + +assign: + assign FT: // + +FTSRC = /FT/src + +CC = ppc-morphos-gcc +AR = ppc-morphos-ar rc +RANLIB = ppc-morphos-ranlib +LD = ppc-morphos-ld +CFLAGS = -DFT2_BUILD_LIBRARY -O2 -I/emu/emulinclude/includegcc -I/emu/include -Iinclude -I$(FTSRC) -I/FT/include + +# +# FreeType2 library base +# +ftbase.ppc.o: $(FTSRC)/base/ftbase.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftinit.ppc.o: $(FTSRC)/base/ftinit.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftsystem.ppc.o: $(FTSRC)/base/ftsystem.c + $(CC) -c $(CFLAGS) -o $@ $< + +# pure version for use in run-time library etc +ftsystempure.ppc.o: src/base/ftsystem.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftdebug.ppc.o: $(FTSRC)/base/ftdebug.c + $(CC) -c $(CFLAGS) -o $@ $< + +# pure version for use in run-time library etc +ftdebugpure.ppc.o: src/base/ftdebug.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library base extensions +# +ftbbox.ppc.o: $(FTSRC)/base/ftbbox.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftbdf.ppc.o: $(FTSRC)/base/ftbdf.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftbitmap.ppc.o: $(FTSRC)/base/ftbitmap.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftcid.ppc.o: $(FTSRC)/base/ftcid.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftfstype.ppc.o: $(FTSRC)/base/ftfstype.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftgasp.ppc.o: $(FTSRC)/base/ftgasp.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftglyph.ppc.o: $(FTSRC)/base/ftglyph.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftgxval.ppc.o: $(FTSRC)/base/ftgxval.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftlcdfil.ppc.o: $(FTSRC)/base/ftlcdfil.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftmm.ppc.o: $(FTSRC)/base/ftmm.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftotval.ppc.o: $(FTSRC)/base/ftotval.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftpatent.ppc.o: $(FTSRC)/base/ftpatent.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftpfr.ppc.o: $(FTSRC)/base/ftpfr.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftstroke.ppc.o: $(FTSRC)/base/ftstroke.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftsynth.ppc.o: $(FTSRC)/base/ftsynth.c + $(CC) -c $(CFLAGS) -o $@ $< + +fttype1.ppc.o: $(FTSRC)/base/fttype1.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftwinfnt.ppc.o: $(FTSRC)/base/ftwinfnt.c + $(CC) -c $(CFLAGS) -o $@ $< + +ftxf86.ppc.o: $(FTSRC)/base/ftxf86.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library autofitting module +# +autofit.ppc.o: $(FTSRC)/autofit/autofit.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library postscript hinting module +# +pshinter.ppc.o: $(FTSRC)/pshinter/pshinter.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library PS support module +# +psaux.ppc.o: $(FTSRC)/psaux/psaux.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library PS glyph names module +# +psnames.ppc.o: $(FTSRC)/psnames/psnames.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library monochrome raster module +# +raster.ppc.o: $(FTSRC)/raster/raster.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library anti-aliasing raster module +# +smooth.ppc.o: $(FTSRC)/smooth/smooth.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library 'sfnt' module +# +sfnt.ppc.o: $(FTSRC)/sfnt/sfnt.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library glyph and image caching system +# +ftcache.ppc.o: $(FTSRC)/cache/ftcache.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library OpenType font driver +# +cff.ppc.o: $(FTSRC)/cff/cff.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library TrueType font driver +# +truetype.ppc.o: $(FTSRC)/truetype/truetype.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library Type1 font driver +# +type1.ppc.o: $(FTSRC)/type1/type1.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library Type42 font driver +# +type42.ppc.o: $(FTSRC)/type42/type42.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library CID-keyed Type1 font driver +# +type1cid.ppc.o: $(FTSRC)/cid/type1cid.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library BDF bitmap font driver +# +bdf.ppc.o: $(FTSRC)/bdf/bdf.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library PCF bitmap font driver +# +pcf.ppc.o: $(FTSRC)/pcf/pcf.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library gzip support for compressed PCF bitmap fonts +# +gzip.ppc.o: $(FTSRC)/gzip/ftgzip.c + $(CC) -c $(CFLAGS) -o $@ $< + +# FreeType2 library bzip2 support for compressed PCF bitmap fonts +# +bzip2.ppc.o: $(FTSRC)/bzip2/ftbzip2.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library compress support for compressed PCF bitmap fonts +# +lzw.ppc.o: $(FTSRC)/lzw/ftlzw.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library PFR font driver +# +pfr.ppc.o: $(FTSRC)/pfr/pfr.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library Windows FNT/FON bitmap font driver +# +winfnt.ppc.o: $(FTSRC)/winfonts/winfnt.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library TrueTypeGX Validator +# +gxvalid.ppc.o: $(FTSRC)/gxvalid/gxvalid.c + $(CC) -c $(CFLAGS) -o $@ $< + +# +# FreeType2 library OpenType validator +# +otvalid.ppc.o: $(FTSRC)/otvalid/otvalid.c + $(CC) -c $(CFLAGS) -o $@ $< + +BASEPPC = ftbase.ppc.o ftbbox.ppc.o ftbdf.ppc.o ftbitmap.ppc.o ftcid.ppc.o \ + ftfstype.ppc.o ftgasp.ppc.o ftglyph.ppc.o ftgxval.ppc.o \ + ftlcdfil.ppc.o ftmm.ppc.o ftotval.ppc.o ftpatent.ppc.o ftpfr.ppc.o \ + ftstroke.ppc.o ftsynth.ppc.o fttype1.ppc.o ftwinfnt.ppc.o \ + ftxf86.ppc.o + +DEBUGPPC = ftdebug.ppc.o ftdebugpure.ppc.o + +AFITPPC = autofit.ppc.o + +GXVPPC = gxvalid.ppc.o + +OTVPPC = otvalid.ppc.o + +PSPPC = psaux.ppc.o psnames.ppc.o pshinter.ppc.o + +RASTERPPC = raster.ppc.o smooth.ppc.o + +FONTDPPC = cff.ppc.o type1.ppc.o type42.ppc.o type1cid.ppc.o truetype.ppc.o\ + bdf.ppc.o pcf.ppc.o pfr.ppc.o winfnt.ppc.o + +libft2_ppc.a: $(BASEPPC) $(AFITPPC) $(GXVPPC) $(OTVPPC) $(PSPPC) $(RASTERPPC) sfnt.ppc.o ftcache.ppc.o $(FONTDPPC) gzip.ppc.o bzip2.ppc.o lzw.ppc.o + $(AR) $@ $(BASEPPC) $(AFITPPC) $(GXVPPC) $(OTVPPC) $(PSPPC) $(RASTERPPC) sfnt.ppc.o ftcache.ppc.o $(FONTDPPC) gzip.ppc.o bzip2.ppc.o lzw.ppc.o + -@ ($(RANLIB) $@ || true) >/dev/null 2>&1 + +#Local Variables: +#coding: latin-1 +#End: diff --git a/builds/amiga/makefile.os4 b/builds/amiga/makefile.os4 new file mode 100644 index 0000000..13758bc --- /dev/null +++ b/builds/amiga/makefile.os4 @@ -0,0 +1,303 @@ +# +# Makefile for FreeType2 link library using gcc 4.0.3 from the +# AmigaOS4 SDK +# + + +# Copyright 2005, 2006, 2007, 2009 by +# Werner Lemberg and Detlef Würkner. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# to build from the builds/amiga directory call +# +# make -f makefile.os4 +# +# Your programs source code should start with this +# (uncomment the parts you do not need to keep the program small): +# ---8<--- +#define FT_USE_AUTOFIT // autofitter +#define FT_USE_RASTER // monochrome rasterizer +#define FT_USE_SMOOTH // anti-aliasing rasterizer +#define FT_USE_TT // truetype font driver +#define FT_USE_T1 // type1 font driver +#define FT_USE_T42 // type42 font driver +#define FT_USE_T1CID // cid-keyed type1 font driver +#define FT_USE_CFF // opentype font driver +#define FT_USE_BDF // bdf bitmap font driver +#define FT_USE_PCF // pcf bitmap font driver +#define FT_USE_PFR // pfr font driver +#define FT_USE_WINFNT // windows .fnt|.fon bitmap font driver +#define FT_USE_OTV // opentype validator +#define FT_USE_GXV // truetype gx validator +#include "FT:src/base/ftinit.c" +# ---8<--- +# +# link your programs with libft2_ppc.a and either ftsystem.ppc.o or ftsystempure.ppc.o +# (and either ftdebug.ppc.o or ftdebugpure.ppc.o if you enabled FT_DEBUG_LEVEL_ERROR or +# FT_DEBUG_LEVEL_TRACE in include/freetype/config/ftoption.h). + +all: assign libft2_ppc.a ftsystem.ppc.o ftsystempure.ppc.o + +assign: + assign FT: // + +CC = ppc-amigaos-gcc +AR = ppc-amigaos-ar +RANLIB = ppc-amigaos-ranlib + +DIRFLAGS = -Iinclude -I/FT/src -I/FT/include -I/SDK/include + +WARNINGS = -Wall -W -Wundef -Wpointer-arith -Wbad-function-cast \ + -Waggregate-return -Wwrite-strings -Wshadow + +OPTIONS = -DFT2_BUILD_LIBRARY -DNDEBUG -fno-builtin +OPTIMIZE = -O2 -fomit-frame-pointer -fstrength-reduce -finline-functions + +CFLAGS = -mcrt=clib2 $(DIRFLAGS) $(WARNINGS) $(FT2FLAGS) $(OPTIONS) $(OPTIMIZE) + +# +# FreeType2 library base +# +ftbase.ppc.o: FT:src/base/ftbase.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftbase.c + +ftinit.ppc.o: FT:src/base/ftinit.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftinit.c + +ftsystem.ppc.o: FT:src/base/ftsystem.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftsystem.c + +# pure version for use in run-time library etc +ftsystempure.ppc.o: src/base/ftsystem.c + $(CC) -c $(CFLAGS) -o $@ src/base/ftsystem.c + +# +# FreeType2 library base extensions +# +ftbbox.ppc.o: FT:src/base/ftbbox.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftbbox.c + +ftbdf.ppc.o: FT:src/base/ftbdf.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftbdf.c + +ftbitmap.ppc.o: FT:src/base/ftbitmap.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftbitmap.c + +ftcid.ppc.o: FT:src/base/ftcid.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftcid.c + +ftdebug.ppc.o: FT:src/base/ftdebug.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftdebug.c + +# pure version for use in run-time library etc +ftdebugpure.ppc.o: src/base/ftdebug.c + $(CC) -c $(CFLAGS) -o $@ src/base/ftdebug.c + +ftfstype.ppc.o: FT:src/base/ftfstype.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftfstype.c + +ftgasp.ppc.o: FT:src/base/ftgasp.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftgasp.c + +ftglyph.ppc.o: FT:src/base/ftglyph.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftglyph.c + +ftgxval.ppc.o: FT:src/base/ftgxval.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftgxval.c + +ftlcdfil.ppc.o: FT:src/base/ftlcdfil.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftlcdfil.c + +ftmm.ppc.o: FT:src/base/ftmm.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftmm.c + +ftotval.ppc.o: FT:src/base/ftotval.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftotval.c + +ftpatent.ppc.o: FT:src/base/ftpatent.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftpatent.c + +ftpfr.ppc.o: FT:src/base/ftpfr.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftpfr.c + +ftstroke.ppc.o: FT:src/base/ftstroke.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftstroke.c + +ftsynth.ppc.o: FT:src/base/ftsynth.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftsynth.c + +fttype1.ppc.o: FT:src/base/fttype1.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/fttype1.c + +ftwinfnt.ppc.o: FT:src/base/ftwinfnt.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftwinfnt.c + +ftxf86.ppc.o: FT:src/base/ftxf86.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/base/ftxf86.c + +# +# FreeType2 library autofitting module +# +autofit.ppc.o: FT:src/autofit/autofit.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/autofit/autofit.c + +# +# FreeType2 library postscript hinting module +# +pshinter.ppc.o: FT:src/pshinter/pshinter.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/pshinter/pshinter.c + +# +# FreeType2 library PS support module +# +psaux.ppc.o: FT:src/psaux/psaux.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/psaux/psaux.c + +# +# FreeType2 library PS glyph names module +# +psnames.ppc.o: FT:src/psnames/psnames.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/psnames/psnames.c + +# +# FreeType2 library monochrome raster module +# +raster.ppc.o: FT:src/raster/raster.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/raster/raster.c + +# +# FreeType2 library anti-aliasing raster module +# +smooth.ppc.o: FT:src/smooth/smooth.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/smooth/smooth.c + +# +# FreeType2 library 'sfnt' module +# +sfnt.ppc.o: FT:src/sfnt/sfnt.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/sfnt/sfnt.c + +# +# FreeType2 library glyph and image caching system +# +ftcache.ppc.o: FT:src/cache/ftcache.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/cache/ftcache.c + +# +# FreeType2 library OpenType font driver +# +cff.ppc.o: FT:src/cff/cff.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/cff/cff.c + +# +# FreeType2 library TrueType font driver +# +truetype.ppc.o: FT:src/truetype/truetype.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/truetype/truetype.c + +# +# FreeType2 library Type1 font driver +# +type1.ppc.o: FT:src/type1/type1.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/type1/type1.c + +# +# FreeType2 library Type42 font driver +# +type42.ppc.o: FT:src/type42/type42.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/type42/type42.c + +# +# FreeType2 library CID-keyed Type1 font driver +# +type1cid.ppc.o: FT:src/cid/type1cid.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/cid/type1cid.c + +# +# FreeType2 library BDF bitmap font driver +# +bdf.ppc.o: FT:src/bdf/bdf.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/bdf/bdf.c + +# +# FreeType2 library PCF bitmap font driver +# +pcf.ppc.o: FT:src/pcf/pcf.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/pcf/pcf.c + +# +# FreeType2 library gzip support for compressed PCF bitmap fonts +# +gzip.ppc.o: FT:src/gzip/ftgzip.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/gzip/ftgzip.c + +# +# FreeType2 library bzip2 support for compressed PCF bitmap fonts +# +bzip2.ppc.o: FT:src/bzip2/ftbzip2.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/bzip2/ftbzip2.c + +# +# FreeType2 library compress support for compressed PCF bitmap fonts +# +lzw.ppc.o: FT:src/lzw/ftlzw.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/lzw/ftlzw.c + +# +# FreeType2 library PFR font driver +# +pfr.ppc.o: FT:src/pfr/pfr.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/pfr/pfr.c + +# +# FreeType2 library Windows FNT/FON bitmap font driver +# +winfnt.ppc.o: FT:src/winfonts/winfnt.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/winfonts/winfnt.c + +# +# FreeType2 library TrueTypeGX Validator +# +gxvalid.ppc.o: FT:src/gxvalid/gxvalid.c + $(CC) -c $(CFLAGS) -Wno-aggregate-return -o $@ /FT/src/gxvalid/gxvalid.c + +# +# FreeType2 library OpenType validator +# +otvalid.ppc.o: FT:src/otvalid/otvalid.c + $(CC) -c $(CFLAGS) -o $@ /FT/src/otvalid/otvalid.c + +BASE = ftbase.ppc.o ftbbox.ppc.o ftbdf.ppc.o ftbitmap.ppc.o ftcid.ppc.o \ + ftfstype.ppc.o ftgasp.ppc.o ftglyph.ppc.o ftgxval.ppc.o \ + ftlcdfil.ppc.o ftmm.ppc.o ftotval.ppc.o ftpatent.ppc.o ftpfr.ppc.o \ + ftstroke.ppc.o ftsynth.ppc.o fttype1.ppc.o ftwinfnt.ppc.o \ + ftxf86.ppc.o + +DEBUG = ftdebug.ppc.o ftdebugpure.ppc.o + +AFIT = autofit.ppc.o + +GXV = gxvalid.ppc.o + +OTV = otvalid.ppc.o + +PS = psaux.ppc.o psnames.ppc.o pshinter.ppc.o + +RASTER = raster.ppc.o smooth.ppc.o + +FONTD = cff.ppc.o type1.ppc.o type42.ppc.o type1cid.ppc.o truetype.ppc.o\ + bdf.ppc.o pcf.ppc.o pfr.ppc.o winfnt.ppc.o + +libft2_ppc.a: $(BASE) $(AFIT) $(GXV) $(OTV) $(PS) $(RASTER) sfnt.ppc.o ftcache.ppc.o $(FONTD) gzip.ppc.o lzw.ppc.o + $(AR) r $@ $(BASE) $(AFIT) $(GXV) $(OTV) $(PS) $(RASTER) sfnt.ppc.o ftcache.ppc.o $(FONTD) gzip.ppc.o lzw.ppc.o + $(RANLIB) $@ + +#Local Variables: +#coding: latin-1 +#End: diff --git a/builds/amiga/smakefile b/builds/amiga/smakefile new file mode 100644 index 0000000..097aec9 --- /dev/null +++ b/builds/amiga/smakefile @@ -0,0 +1,303 @@ +# +# Makefile for FreeType2 link library using Amiga SAS/C 6.58 +# + + +# Copyright 2005,2006, 2007, 2009 by +# Werner Lemberg and Detlef Würkner. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# to build from the builds/amiga directory call +# +# smake assign +# smake +# +# Your programs source code should start with this +# (uncomment the parts you do not need to keep the program small): +# ---8<--- +#define FT_USE_AUTOFIT // autofitter +#define FT_USE_RASTER // monochrome rasterizer +#define FT_USE_SMOOTH // anti-aliasing rasterizer +#define FT_USE_TT // truetype font driver +#define FT_USE_T1 // type1 font driver +#define FT_USE_T42 // type42 font driver +#define FT_USE_T1CID // cid-keyed type1 font driver +#define FT_USE_CFF // opentype font driver +#define FT_USE_BDF // bdf bitmap font driver +#define FT_USE_PCF // pcf bitmap font driver +#define FT_USE_PFR // pfr font driver +#define FT_USE_WINFNT // windows .fnt|.fon bitmap font driver +#define FT_USE_OTV // opentype validator +#define FT_USE_GXV // truetype gx validator +#include "FT:src/base/ftinit.c" +# ---8<--- +# +# link your programs with ft2_680x0.lib and either ftsystem.o or ftsystempure.o +# (and either ftdebug.o or ftdebugpure.o if you enabled FT_DEBUG_LEVEL_ERROR or +# FT_DEBUG_LEVEL_TRACE in include/freetype/config/ftoption.h). + +OBJBASE = ftbase.o ftbbox.o ftbdf.o ftbitmap.o ftcid.o ftfstype.o ftgasp.o \ + ftglyph.o ftgxval.o ftlcdfil.o ftmm.o ftotval.o ftpatent.o ftpfr.o \ + ftstroke.o ftsynth.o fttype1.o ftwinfnt.o ftxf86.o + +OBJSYSTEM = ftsystem.o ftsystempure.o + +OBJDEBUG = ftdebug.o ftdebugpure.o + +OBJAFIT = autofit.o + +OBJGXV = gxvalid.o + +OBJOTV = otvalid.o + +OBJPS = psaux.o psnames.o pshinter.o + +OBJRASTER = raster.o smooth.o + +OBJSFNT = sfnt.o + +OBJCACHE = ftcache.o + +OBJFONTD = cff.o type1.o type42.o type1cid.o\ + truetype.o winfnt.o bdf.o pcf.o pfr.o + +CORE = FT:src/ + +CPU = 68000 +#CPU = 68020 +#CPU = 68030 +#CPU = 68040 +#CPU = 68060 + +OPTIMIZER = optinlocal + +SCFLAGS = optimize opttime optsched strmerge data=faronly idlen=50 cpu=$(CPU)\ + idir=include/ idir=$(CORE) idir=FT:include/ nostackcheck nochkabort\ + noicons ignore=79,85,110,306 parameters=both define=FT2_BUILD_LIBRARY + +LIB = ft2_$(CPU).lib + +# sample linker options +OPTS = link lib=$(LIB),lib:sc.lib,lib:amiga.lib,lib:debug.lib\ + smallcode smalldata noicons utillib + +# sample program entry +#myprog: myprog.c ftsystem.o $(LIB) +# sc $< programname=$@ ftsystem.o $(SCFLAGS) $(OPTS) + +all: $(LIB) $(OBJSYSTEM) $(OBJDEBUG) + +assign: + assign FT: // + +# uses separate object modules in lib to make for easier debugging +# also, can make smaller programs if entire engine is not used +ft2_$(CPU).lib: $(OBJBASE) $(OBJAFIT) $(OBJOTV) $(OBJPS) $(OBJRASTER) $(OBJSFNT) $(OBJCACHE) $(OBJFONTD) lzw.o gzip.o bzip2.o + oml $@ r $(OBJBASE) $(OBJAFIT) $(OBJOTV) $(OBJPS) $(OBJRASTER) $(OBJSFNT) $(OBJCACHE) $(OBJFONTD) lzw.o gzip.o bzip2.o + +clean: + -delete \#?.o + +realclean: clean + -delete ft2$(CPU).lib + +# +# freetype library base +# +ftbase.o: $(CORE)base/ftbase.c + sc $(SCFLAGS) objname=$@ $< +ftinit.o: $(CORE)base/ftinit.c + sc $(SCFLAGS) objname=$@ $< +ftsystem.o: $(CORE)base/ftsystem.c + sc $(SCFLAGS) objname=$@ $< +ftsystempure.o: src/base/ftsystem.c ## pure version for use in run-time library etc + sc $(SCFLAGS) objname=$@ $< +ftdebug.o: $(CORE)base/ftdebug.c + sc $(SCFLAGS) objname=$@ $< +ftdebugpure.o: src/base/ftdebug.c ## pure version for use in run-time library etc + sc $(SCFLAGS) objname=$@ $< +# +# freetype library base extensions +# +ftbbox.o: $(CORE)base/ftbbox.c + sc $(SCFLAGS) objname=$@ $< +ftbdf.o: $(CORE)base/ftbdf.c + sc $(SCFLAGS) objname=$@ $< +ftbitmap.o: $(CORE)base/ftbitmap.c + sc $(SCFLAGS) objname=$@ $< +ftcid.o: $(CORE)base/ftcid.c + sc $(SCFLAGS) objname=$@ $< +ftfstype.o: $(CORE)base/ftfstype.c + sc $(SCFLAGS) objname=$@ $< +ftgasp.o: $(CORE)base/ftgasp.c + sc $(SCFLAGS) objname=$@ $< +ftglyph.o: $(CORE)base/ftglyph.c + sc $(SCFLAGS) objname=$@ $< +ftgxval.o: $(CORE)base/ftgxval.c + sc $(SCFLAGS) objname=$@ $< +ftlcdfil.o: $(CORE)base/ftlcdfil.c + sc $(SCFLAGS) objname=$@ $< +ftmm.o: $(CORE)base/ftmm.c + sc $(SCFLAGS) objname=$@ $< +ftotval.o: $(CORE)base/ftotval.c + sc $(SCFLAGS) objname=$@ $< +ftpatent.o: $(CORE)base/ftpatent.c + sc $(SCFLAGS) objname=$@ $< +ftpfr.o: $(CORE)base/ftpfr.c + sc $(SCFLAGS) objname=$@ $< +ftstroke.o: $(CORE)base/ftstroke.c + sc $(SCFLAGS) objname=$@ $< +ftsynth.o: $(CORE)base/ftsynth.c + sc $(SCFLAGS) objname=$@ $< +fttype1.o: $(CORE)base/fttype1.c + sc $(SCFLAGS) objname=$@ $< +ftwinfnt.o: $(CORE)base/ftwinfnt.c + sc $(SCFLAGS) objname=$@ $< +ftxf86.o: $(CORE)base/ftxf86.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library autofitter module +# +autofit.o: $(CORE)autofit/autofit.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library PS hinting module +# +pshinter.o: $(CORE)pshinter/pshinter.c + sc $(SCFLAGS) objname=$@ $< +# +# freetype library PS support module +# +psaux.o: $(CORE)psaux/psaux.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library PS glyph names module +# +psnames.o: $(CORE)psnames/psnames.c + sc $(SCFLAGS) code=far objname=$@ $< + +# +# freetype library monochrome raster module +# +raster.o: $(CORE)raster/raster.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library anti-aliasing raster module +# +smooth.o: $(CORE)smooth/smooth.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library 'sfnt' module +# +sfnt.o: $(CORE)sfnt/sfnt.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library glyph and image caching system (still experimental) +# +ftcache.o: $(CORE)cache/ftcache.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library OpenType font driver +# +cff.o: $(CORE)cff/cff.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library TrueType font driver +# +truetype.o: $(CORE)truetype/truetype.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library Type1 font driver +# +type1.o: $(CORE)type1/type1.c + sc $(SCFLAGS) objname=$@ $< + +# +# FreeType2 library Type42 font driver +# +type42.o: $(CORE)type42/type42.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library CID-keyed Type1 font driver +# +type1cid.o: $(CORE)cid/type1cid.c + sc $(SCFLAGS) objname=$@ $< +# +# freetype library CID-keyed Type1 font driver extensions +# +#cidafm.o: $(CORE)cid/cidafm.c +# sc $(SCFLAGS) objname=$@ $< + +# +# freetype library BDF bitmap font driver +# +bdf.o: $(CORE)bdf/bdf.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library PCF bitmap font driver +# +pcf.o: $(CORE)pcf/pcf.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library gzip support for compressed PCF bitmap fonts +# +gzip.o: $(CORE)gzip/ftgzip.c + sc $(SCFLAGS) define FAR objname=$@ $< + +# +# freetype library bzip2 support for compressed PCF bitmap fonts +# +bzip2.o: $(CORE)bzip2/ftbzip2.c + sc $(SCFLAGS) define FAR objname=$@ $< + +# +# freetype library compress support for compressed PCF bitmap fonts +# +lzw.o: $(CORE)lzw/ftlzw.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library PFR font driver +# +pfr.o: $(CORE)pfr/pfr.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library Windows FNT/FON bitmap font driver +# +winfnt.o: $(CORE)winfonts/winfnt.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library TrueTypeGX validator +# +gxvalid.o: $(CORE)gxvalid/gxvalid.c + sc $(SCFLAGS) objname=$@ $< + +# +# freetype library OpenType validator +# +otvalid.o: $(CORE)otvalid/otvalid.c + sc $(SCFLAGS) objname=$@ $< + +#Local Variables: +#coding: latin-1 +#End: diff --git a/builds/amiga/src/base/ftdebug.c b/builds/amiga/src/base/ftdebug.c new file mode 100644 index 0000000..5284e69 --- /dev/null +++ b/builds/amiga/src/base/ftdebug.c @@ -0,0 +1,279 @@ +/***************************************************************************/ +/* */ +/* ftdebug.c */ +/* */ +/* Debugging and logging component (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2005 by */ +/* David Turner, Robert Wilhelm, Werner Lemberg and Detlef Würkner. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This component contains various macros and functions used to ease the */ + /* debugging of the FreeType engine. Its main purpose is in assertion */ + /* checking, tracing, and error detection. */ + /* */ + /* There are now three debugging modes: */ + /* */ + /* - trace mode */ + /* */ + /* Error and trace messages are sent to the log file (which can be the */ + /* standard error output). */ + /* */ + /* - error mode */ + /* */ + /* Only error messages are generated. */ + /* */ + /* - release mode: */ + /* */ + /* No error message is sent or generated. The code is free from any */ + /* debugging parts. */ + /* */ + /*************************************************************************/ + + +/* + * Based on the default ftdebug.c, + * replaced vprintf() with KVPrintF(), + * commented out exit(), + * replaced getenv() with GetVar(). + */ + +#include +#include +#include +#include +#define __NOLIBBASE__ +#define __NOLOBALIFACE__ +#define __USE_INLINE__ +#include +#include + +#ifndef __amigaos4__ +extern struct Library *DOSBase; +#else +extern struct DOSIFace *IDOS; +#endif + + +#include +#include FT_FREETYPE_H +#include FT_INTERNAL_DEBUG_H + + +#if defined( FT_DEBUG_LEVEL_ERROR ) + + /* documentation is in ftdebug.h */ + + FT_BASE_DEF( void ) + FT_Message( const char* fmt, ... ) + { + va_list ap; + + + va_start( ap, fmt ); +/* vprintf( fmt, ap ); */ + KVPrintF( fmt, ap ); + va_end( ap ); + } + + + /* documentation is in ftdebug.h */ + + FT_BASE_DEF( void ) + FT_Panic( const char* fmt, ... ) + { + va_list ap; + + + va_start( ap, fmt ); +/* vprintf( fmt, ap ); */ + KVPrintF( fmt, ap ); + va_end( ap ); + +/* exit( EXIT_FAILURE ); */ + } + +#endif /* FT_DEBUG_LEVEL_ERROR */ + + + +#ifdef FT_DEBUG_LEVEL_TRACE + + /* array of trace levels, initialized to 0 */ + int ft_trace_levels[trace_count]; + + + /* define array of trace toggle names */ +#define FT_TRACE_DEF( x ) #x , + + static const char* ft_trace_toggles[trace_count + 1] = + { +#include FT_INTERNAL_TRACE_H + NULL + }; + +#undef FT_TRACE_DEF + + + /* documentation is in ftdebug.h */ + + FT_BASE_DEF( FT_Int ) + FT_Trace_Get_Count( void ) + { + return trace_count; + } + + + /* documentation is in ftdebug.h */ + + FT_BASE_DEF( const char * ) + FT_Trace_Get_Name( FT_Int idx ) + { + int max = FT_Trace_Get_Count(); + + + if ( idx < max ) + return ft_trace_toggles[idx]; + else + return NULL; + } + + + /*************************************************************************/ + /* */ + /* Initialize the tracing sub-system. This is done by retrieving the */ + /* value of the `FT2_DEBUG' environment variable. It must be a list of */ + /* toggles, separated by spaces, `;', or `,'. Example: */ + /* */ + /* export FT2_DEBUG="any:3 memory:7 stream:5" */ + /* */ + /* This requests that all levels be set to 3, except the trace level for */ + /* the memory and stream components which are set to 7 and 5, */ + /* respectively. */ + /* */ + /* See the file for details of the */ + /* available toggle names. */ + /* */ + /* The level must be between 0 and 7; 0 means quiet (except for serious */ + /* runtime errors), and 7 means _very_ verbose. */ + /* */ + FT_BASE_DEF( void ) + ft_debug_init( void ) + { +/* const char* ft2_debug = getenv( "FT2_DEBUG" ); */ + char buf[256]; + const char* ft2_debug = &buf[0]; + + +/* if ( ft2_debug ) */ + if ( GetVar( "FT2_DEBUG", (STRPTR)ft2_debug, 256, LV_VAR ) > 0 ) + { + const char* p = ft2_debug; + const char* q; + + + for ( ; *p; p++ ) + { + /* skip leading whitespace and separators */ + if ( *p == ' ' || *p == '\t' || *p == ',' || *p == ';' || *p == '=' ) + continue; + + /* read toggle name, followed by ':' */ + q = p; + while ( *p && *p != ':' ) + p++; + + if ( *p == ':' && p > q ) + { + FT_Int n, i, len = (FT_Int)( p - q ); + FT_Int level = -1, found = -1; + + + for ( n = 0; n < trace_count; n++ ) + { + const char* toggle = ft_trace_toggles[n]; + + + for ( i = 0; i < len; i++ ) + { + if ( toggle[i] != q[i] ) + break; + } + + if ( i == len && toggle[i] == 0 ) + { + found = n; + break; + } + } + + /* read level */ + p++; + if ( *p ) + { + level = *p++ - '0'; + if ( level < 0 || level > 7 ) + level = -1; + } + + if ( found >= 0 && level >= 0 ) + { + if ( found == trace_any ) + { + /* special case for `any' */ + for ( n = 0; n < trace_count; n++ ) + ft_trace_levels[n] = level; + } + else + ft_trace_levels[found] = level; + } + } + } + } + } + + +#else /* !FT_DEBUG_LEVEL_TRACE */ + + + FT_BASE_DEF( void ) + ft_debug_init( void ) + { + /* nothing */ + } + + + FT_BASE_DEF( FT_Int ) + FT_Trace_Get_Count( void ) + { + return 0; + } + + + FT_BASE_DEF( const char * ) + FT_Trace_Get_Name( FT_Int idx ) + { + FT_UNUSED( idx ); + + return NULL; + } + + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + +/* +Local Variables: +coding: latin-1 +End: +*/ +/* END */ diff --git a/builds/amiga/src/base/ftsystem.c b/builds/amiga/src/base/ftsystem.c new file mode 100644 index 0000000..6f9eac1 --- /dev/null +++ b/builds/amiga/src/base/ftsystem.c @@ -0,0 +1,530 @@ +/***************************************************************************/ +/* */ +/* ftsystem.c */ +/* */ +/* Amiga-specific FreeType low-level system interface (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2006, 2007, 2010 by */ +/* David Turner, Robert Wilhelm, Werner Lemberg and Detlef Würkner. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* This file contains the Amiga interface used by FreeType to access */ + /* low-level, i.e. memory management, i/o access as well as thread */ + /* synchronisation. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Maintained by Detlef Würkner */ + /* */ + /* Based on the original ftsystem.c, */ + /* modified to avoid fopen(), fclose(), fread(), fseek(), ftell(), */ + /* malloc(), realloc(), and free(). */ + /* */ + /* Those C library functions are often not thread-safe or cant be */ + /* used in a shared Amiga library. If that's not a problem for you, */ + /* you can of course use the default ftsystem.c with C library calls */ + /* instead. */ + /* */ + /* This implementation needs exec V39+ because it uses AllocPooled() etc */ + /* */ + /*************************************************************************/ + +#define __NOLIBBASE__ +#define __NOGLOBALIFACE__ +#define __USE_INLINE__ +#include +#include +#include +#ifdef __amigaos4__ +extern struct ExecIFace *IExec; +extern struct DOSIFace *IDOS; +#else +extern struct Library *SysBase; +extern struct Library *DOSBase; +#endif + +#define IOBUF_SIZE 512 + +/* structure that helps us to avoid + * useless calls of Seek() and Read() + */ +struct SysFile +{ + BPTR file; + ULONG iobuf_start; + ULONG iobuf_end; + UBYTE iobuf[IOBUF_SIZE]; +}; + +#ifndef __amigaos4__ +/* C implementation of AllocVecPooled (see autodoc exec/AllocPooled) */ +APTR +Alloc_VecPooled( APTR poolHeader, + ULONG memSize ) +{ + ULONG newSize = memSize + sizeof ( ULONG ); + ULONG *mem = AllocPooled( poolHeader, newSize ); + + if ( !mem ) + return NULL; + *mem = newSize; + return mem + 1; +} + +/* C implementation of FreeVecPooled (see autodoc exec/AllocPooled) */ +void +Free_VecPooled( APTR poolHeader, + APTR memory ) +{ + ULONG *realmem = (ULONG *)memory - 1; + + FreePooled( poolHeader, realmem, *realmem ); +} +#endif + +#include +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_DEBUG_H +#include FT_SYSTEM_H +#include FT_ERRORS_H +#include FT_TYPES_H + +#include +#include +#include + + + /*************************************************************************/ + /* */ + /* MEMORY MANAGEMENT INTERFACE */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* It is not necessary to do any error checking for the */ + /* allocation-related functions. This is done by the higher level */ + /* routines like ft_mem_alloc() or ft_mem_realloc(). */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* ft_alloc */ + /* */ + /* */ + /* The memory allocation function. */ + /* */ + /* */ + /* memory :: A pointer to the memory object. */ + /* */ + /* size :: The requested size in bytes. */ + /* */ + /* */ + /* The address of newly allocated block. */ + /* */ + FT_CALLBACK_DEF( void* ) + ft_alloc( FT_Memory memory, + long size ) + { +#ifdef __amigaos4__ + return AllocVecPooled( memory->user, size ); +#else + return Alloc_VecPooled( memory->user, size ); +#endif + } + + + /*************************************************************************/ + /* */ + /* */ + /* ft_realloc */ + /* */ + /* */ + /* The memory reallocation function. */ + /* */ + /* */ + /* memory :: A pointer to the memory object. */ + /* */ + /* cur_size :: The current size of the allocated memory block. */ + /* */ + /* new_size :: The newly requested size in bytes. */ + /* */ + /* block :: The current address of the block in memory. */ + /* */ + /* */ + /* The address of the reallocated memory block. */ + /* */ + FT_CALLBACK_DEF( void* ) + ft_realloc( FT_Memory memory, + long cur_size, + long new_size, + void* block ) + { + void* new_block; + +#ifdef __amigaos4__ + new_block = AllocVecPooled ( memory->user, new_size ); +#else + new_block = Alloc_VecPooled ( memory->user, new_size ); +#endif + if ( new_block != NULL ) + { + CopyMem ( block, new_block, + ( new_size > cur_size ) ? cur_size : new_size ); +#ifdef __amigaos4__ + FreeVecPooled ( memory->user, block ); +#else + Free_VecPooled ( memory->user, block ); +#endif + } + return new_block; + } + + + /*************************************************************************/ + /* */ + /* */ + /* ft_free */ + /* */ + /* */ + /* The memory release function. */ + /* */ + /* */ + /* memory :: A pointer to the memory object. */ + /* */ + /* block :: The address of block in memory to be freed. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_free( FT_Memory memory, + void* block ) + { +#ifdef __amigaos4__ + FreeVecPooled( memory->user, block ); +#else + Free_VecPooled( memory->user, block ); +#endif + } + + + /*************************************************************************/ + /* */ + /* RESOURCE MANAGEMENT INTERFACE */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_io + + /* We use the macro STREAM_FILE for convenience to extract the */ + /* system-specific stream handle from a given FreeType stream object */ +#define STREAM_FILE( stream ) ( (struct SysFile *)stream->descriptor.pointer ) + + + /*************************************************************************/ + /* */ + /* */ + /* ft_amiga_stream_close */ + /* */ + /* */ + /* The function to close a stream. */ + /* */ + /* */ + /* stream :: A pointer to the stream object. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_amiga_stream_close( FT_Stream stream ) + { + struct SysFile* sysfile; + + sysfile = STREAM_FILE( stream ); + Close ( sysfile->file ); + FreeMem ( sysfile, sizeof ( struct SysFile )); + + stream->descriptor.pointer = NULL; + stream->size = 0; + stream->base = 0; + } + + + /*************************************************************************/ + /* */ + /* */ + /* ft_amiga_stream_io */ + /* */ + /* */ + /* The function to open a stream. */ + /* */ + /* */ + /* stream :: A pointer to the stream object. */ + /* */ + /* offset :: The position in the data stream to start reading. */ + /* */ + /* buffer :: The address of buffer to store the read data. */ + /* */ + /* count :: The number of bytes to read from the stream. */ + /* */ + /* */ + /* The number of bytes actually read. */ + /* */ + FT_CALLBACK_DEF( unsigned long ) + ft_amiga_stream_io( FT_Stream stream, + unsigned long offset, + unsigned char* buffer, + unsigned long count ) + { + struct SysFile* sysfile; + unsigned long read_bytes; + + if ( count != 0 ) + { + sysfile = STREAM_FILE( stream ); + + /* handle the seek */ + if ( (offset < sysfile->iobuf_start) || (offset + count > sysfile->iobuf_end) ) + { + /* requested offset implies we need a buffer refill */ + if ( !sysfile->iobuf_end || offset != sysfile->iobuf_end ) + { + /* a physical seek is necessary */ + Seek( sysfile->file, offset, OFFSET_BEGINNING ); + } + sysfile->iobuf_start = offset; + sysfile->iobuf_end = 0; /* trigger a buffer refill */ + } + + /* handle the read */ + if ( offset + count <= sysfile->iobuf_end ) + { + /* we have buffer and requested bytes are all inside our buffer */ + CopyMem( &sysfile->iobuf[offset - sysfile->iobuf_start], buffer, count ); + read_bytes = count; + } + else + { + /* (re)fill buffer */ + if ( count <= IOBUF_SIZE ) + { + /* requested bytes is a subset of the buffer */ + read_bytes = Read( sysfile->file, sysfile->iobuf, IOBUF_SIZE ); + if ( read_bytes == -1UL ) + { + /* error */ + read_bytes = 0; + } + else + { + sysfile->iobuf_end = offset + read_bytes; + CopyMem( sysfile->iobuf, buffer, count ); + if ( read_bytes > count ) + { + read_bytes = count; + } + } + } + else + { + /* we actually need more than our buffer can hold, so we decide + ** to do a single big read, and then copy the last IOBUF_SIZE + ** bytes of that to our internal buffer for later use */ + read_bytes = Read( sysfile->file, buffer, count ); + if ( read_bytes == -1UL ) + { + /* error */ + read_bytes = 0; + } + else + { + ULONG bufsize; + + bufsize = ( read_bytes > IOBUF_SIZE ) ? IOBUF_SIZE : read_bytes; + sysfile->iobuf_end = offset + read_bytes; + sysfile->iobuf_start = sysfile->iobuf_end - bufsize; + CopyMem( &buffer[read_bytes - bufsize] , sysfile->iobuf, bufsize ); + } + } + } + } + else + { + read_bytes = 0; + } + + return read_bytes; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Error ) + FT_Stream_Open( FT_Stream stream, + const char* filepathname ) + { + struct FileInfoBlock* fib; + struct SysFile* sysfile; + + + if ( !stream ) + return FT_Err_Invalid_Stream_Handle; + +#ifdef __amigaos4__ + sysfile = AllocMem ( sizeof (struct SysFile ), MEMF_SHARED ); +#else + sysfile = AllocMem ( sizeof (struct SysFile ), MEMF_PUBLIC ); +#endif + if ( !sysfile ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not open `%s'\n", filepathname )); + + return FT_Err_Cannot_Open_Resource; + } + sysfile->file = Open( (STRPTR)filepathname, MODE_OLDFILE ); + if ( !sysfile->file ) + { + FreeMem ( sysfile, sizeof ( struct SysFile )); + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not open `%s'\n", filepathname )); + + return FT_Err_Cannot_Open_Resource; + } + + fib = AllocDosObject( DOS_FIB, NULL ); + if ( !fib ) + { + Close ( sysfile->file ); + FreeMem ( sysfile, sizeof ( struct SysFile )); + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not open `%s'\n", filepathname )); + + return FT_Err_Cannot_Open_Resource; + } + if ( !( ExamineFH( sysfile->file, fib ) ) ) + { + FreeDosObject( DOS_FIB, fib ); + Close ( sysfile->file ); + FreeMem ( sysfile, sizeof ( struct SysFile )); + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not open `%s'\n", filepathname )); + + return FT_Err_Cannot_Open_Resource; + } + stream->size = fib->fib_Size; + FreeDosObject( DOS_FIB, fib ); + + stream->descriptor.pointer = (void *)sysfile; + stream->pathname.pointer = (char*)filepathname; + sysfile->iobuf_start = 0; + sysfile->iobuf_end = 0; + stream->pos = 0; + + stream->read = ft_amiga_stream_io; + stream->close = ft_amiga_stream_close; + + if ( !stream->size ) + { + ft_amiga_stream_close( stream ); + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " opened `%s' but zero-sized\n", filepathname )); + return FT_Err_Cannot_Open_Stream;; + } + + FT_TRACE1(( "FT_Stream_Open:" )); + FT_TRACE1(( " opened `%s' (%ld bytes) successfully\n", + filepathname, stream->size )); + + return FT_Err_Ok; + } + + +#ifdef FT_DEBUG_MEMORY + + extern FT_Int + ft_mem_debug_init( FT_Memory memory ); + + extern void + ft_mem_debug_done( FT_Memory memory ); + +#endif + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Memory ) + FT_New_Memory( void ) + { + FT_Memory memory; + + +#ifdef __amigaos4__ + memory = (FT_Memory)AllocVec( sizeof ( *memory ), MEMF_SHARED ); +#else + memory = (FT_Memory)AllocVec( sizeof ( *memory ), MEMF_PUBLIC ); +#endif + if ( memory ) + { +#ifdef __amigaos4__ + memory->user = CreatePool( MEMF_SHARED, 16384, 16384 ); +#else + memory->user = CreatePool( MEMF_PUBLIC, 16384, 16384 ); +#endif + if ( memory->user == NULL ) + { + FreeVec( memory ); + memory = NULL; + } + else + { + memory->alloc = ft_alloc; + memory->realloc = ft_realloc; + memory->free = ft_free; +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_init( memory ); +#endif + } + } + + return memory; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( void ) + FT_Done_Memory( FT_Memory memory ) + { +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_done( memory ); +#endif + + DeletePool( memory->user ); + FreeVec( memory ); + } + +/* +Local Variables: +coding: latin-1 +End: +*/ +/* END */ diff --git a/builds/ansi/ansi-def.mk b/builds/ansi/ansi-def.mk new file mode 100644 index 0000000..2c58572 --- /dev/null +++ b/builds/ansi/ansi-def.mk @@ -0,0 +1,74 @@ +# +# FreeType 2 configuration rules for a `normal' ANSI system +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +DELETE := rm -f +CAT := cat +SEP := / +BUILD_DIR := $(TOP_DIR)/builds/ansi +PLATFORM := ansi + + +# The directory where all library files are placed. +# +# By default, this is the same as $(OBJ_DIR); however, this can be changed +# to suit particular needs. +# +LIB_DIR := $(OBJ_DIR) + + +# The name of the final library file. Note that the DOS-specific Makefile +# uses a shorter (8.3) name. +# +LIBRARY := lib$(PROJECT) + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := -I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := -D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := -l + + +# Target flag. +# +T := -o$(space) + + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +CFLAGS ?= -c + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +ANSIFLAGS := + + +# EOF diff --git a/builds/ansi/ansi.mk b/builds/ansi/ansi.mk new file mode 100644 index 0000000..32b3bac --- /dev/null +++ b/builds/ansi/ansi.mk @@ -0,0 +1,21 @@ +# +# FreeType 2 configuration rules for a `normal' pseudo ANSI compiler/system +# + + +# Copyright 1996-2000 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +include $(TOP_DIR)/builds/ansi/ansi-def.mk +include $(TOP_DIR)/builds/compiler/ansi-cc.mk +include $(TOP_DIR)/builds/link_std.mk + + +# EOF diff --git a/builds/atari/ATARI.H b/builds/atari/ATARI.H new file mode 100644 index 0000000..9f78c92 --- /dev/null +++ b/builds/atari/ATARI.H @@ -0,0 +1,20 @@ +#if defined( __GXVALID_H__ ) +#pragma warn -aus /* too many unevaluated variables in gxvalid */ +#endif + +#ifndef ATARI_H +#define ATARI_H + +#pragma warn -stu + +/* PureC doesn't like 32bit enumerations */ + +#ifndef FT_IMAGE_TAG +#define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) value +#endif /* FT_IMAGE_TAG */ + +#ifndef FT_ENC_TAG +#define FT_ENC_TAG( value, a, b, c, d ) value +#endif /* FT_ENC_TAG */ + +#endif /* ATARI_H */ diff --git a/builds/atari/FNames.SIC b/builds/atari/FNames.SIC new file mode 100644 index 0000000..f365717 --- /dev/null +++ b/builds/atari/FNames.SIC @@ -0,0 +1,37 @@ +/* the following changes file names for PureC projects */ + +if (argc > 0) +{ + ordner = argv[0]; + if (basename(ordner) == "") /* ist Ordner */ + { + ChangeFilenames(ordner); + } +} + +proc ChangeFilenames(folder) +local i,entries,directory,file; +{ + entries = filelist(directory,folder); + for (i = 0; i < entries; ++i) + { + file = directory[i,0]; + if ((directory[i,3]&16) > 0) /* subdirectory */ + { + ChangeFilenames(folder+file+"\\"); + } + else + { + if ((stricmp(suffix(file),".h")==0)|(stricmp(suffix(file),".c")==0)) + ChangeFilename(folder,file); + } + } +} + +proc ChangeFilename(path,datei) +local newfile,err; +{ + newfile=datei; + newfile[0]=(newfile[0] | 32) ^ 32; + err=files.rename("-q",path+datei,newfile); +} diff --git a/builds/atari/FREETYPE.PRJ b/builds/atari/FREETYPE.PRJ new file mode 100644 index 0000000..4776a5b --- /dev/null +++ b/builds/atari/FREETYPE.PRJ @@ -0,0 +1,32 @@ +;FreeType project file + +FREETYPE.LIB + +.C [-K -P -R -A] +.L [-J -V] +.S + += + +..\..\src\base\ftsystem.c +..\..\src\base\ftdebug.c + +..\..\src\base\ftinit.c +..\..\src\base\ftglyph.c +..\..\src\base\ftmm +..\..\src\base\ftbbox + +..\..\src\base\ftbase.c +..\..\src\autohint\autohint.c +;..\..\src\cache\ftcache.c +..\..\src\cff\cff.c +..\..\src\cid\type1cid.c +..\..\src\psaux\psaux.c +..\..\src\pshinter\pshinter.c +..\..\src\psnames\psnames.c +..\..\src\raster\raster.c +..\..\src\sfnt\sfnt.c +..\..\src\smooth\smooth.c +..\..\src\truetype\truetype.c +..\..\src\type1\type1.c +..\..\src\type42\type42.c diff --git a/builds/atari/README.TXT b/builds/atari/README.TXT new file mode 100644 index 0000000..04eec63 --- /dev/null +++ b/builds/atari/README.TXT @@ -0,0 +1,51 @@ +Compiling FreeType 2 with PureC compiler +======================================== + +[See below for a German version.] + +To compile FreeType 2 as a library the following changes must be applied: + +- All *.c files must start with an uppercase letter. + (In case GEMSCRIPT is available: + Simply drag the whole FreeType 2 directory to the file `FNames.SIC'.) + +- You have to change the INCLUDE directory in PureC's compiler options + to contain both the `INCLUDE' and `freetype2\include' directory. + Example: + + INCLUDE;E:\freetype2\include + +- The file `freetype2/include/Ft2build.h' must be patched as follows to + include ATARI.H: + + #ifndef __FT2_BUILD_GENERIC_H__ + #define __FT2_BUILD_GENERIC_H__ + + #include "ATARI.H" + + + +Compilieren von FreeType 2 mit PureC +==================================== + +Um FreeType 2 als eine Bibliothek (library) zu compilieren, muss folgendes +ge„ndert werden: + +- Alle *.c-files mssen mit einem GROSSBUCHSTABEN beginnen. + (Falls GEMSCRIPT zur Verfgung steht: + Den kompletten Ordner freetype2 auf die Datei `FNames.SIC' draggen.) + +- In den Compiler-Optionen von PureC muss das INCLUDE directory auf INCLUDE + und freetype2\include verweisen. Z.B.: + + INCLUDE;E:\freetype2\include + +- In der Datei freetype2/include/Ft2build.h muss zu Beginn + ein #include "ATARI.H" wie folgt eingefgt werden: + + #ifndef __FT2_BUILD_GENERIC_H__ + #define __FT2_BUILD_GENERIC_H__ + + #include "ATARI.H" + +--- end of README.TXT --- diff --git a/builds/atari/deflinejoiner.awk b/builds/atari/deflinejoiner.awk new file mode 100644 index 0000000..c872a70 --- /dev/null +++ b/builds/atari/deflinejoiner.awk @@ -0,0 +1,181 @@ +#!/usr/bin/env awk + + +function shift( array, \ + junk, elm0, l ) +{ + elm0 = array[0] + for ( l = 0; l < asorti( array, junk ) - 1; l++ ) + array[l] = array[l+1]; + delete array[l] + return elm0 +} + + +function init_cpp_src_line() +{ + logical_line = "" + delete break_pos +} + + +function shift_valid_bp( array, \ + junk, elm ) +{ + elm = -1 + + if ( 0 < asorti( array, junk ) ) + do { + elm = shift( array ) + } while ( 0 > elm ); + + return elm +} + + +function check_cpp_src_line_break_pos( \ + i, junk ) +{ + printf( "break_pos:" ) + for ( i = 0; i < asorti( break_pos, junk ); i++ ) + printf( " %d", break_pos[i] ); + printf( "\n" ) +} + + +function check_cpp_src_line() +{ + printf( "logical_line[%s]\n", logical_line ) + check_cpp_src_line_break_pos() +} + + +function append_line( phys_line, \ + filt_line, bp_len ) +{ + filt_line = phys_line + sub( /\\$/, " ", filt_line ) + logical_line = logical_line filt_line + bp_len = asorti( break_pos, junk ) + break_pos[bp_len] = length( logical_line ) - 1 +} + + +function print_line( \ + c0, c1, i, junk, part_str ) +{ + c0 = 0 + + while( asorti( break_pos, junk ) > 1 ) + { + if ( ( c1 = shift_valid_bp( break_pos ) ) < 1 ) + { + part_str = substr( logical_line, c0 + 1 ) + printf( "%s\n", part_str ) + return + } + + part_str = substr( logical_line, c0 + 1, c1 - c0 + 1 ) + gsub( / $/, "\\", part_str ) + printf( "%s\n", part_str ) + c0 = c1 + 1 + } + + part_str = substr( logical_line, c0 + 1 ) + printf( "%s\n", part_str ) +} + + +function shrink_spaces( pos, \ + tail, removed_length, k ) +{ + tail = substr( logical_line, pos ) + sub( /^[ \t]+/, " ", tail ) + removed_length = length( logical_line ) - pos - length( tail ) + 1 + logical_line = substr( logical_line, 0, pos - 1 ) tail + + + for ( k = 0; k < asorti( break_pos, junk ); k++ ) + if ( ( pos + removed_length ) <= break_pos[k] ) + break_pos[k] = break_pos[k] - removed_length; + else if ( pos <= break_pos[k] ) + break_pos[k] = -1; + + return removed_length +} + + +function shrink_spaces_to_linebreak( pos, \ + junk, part_str, removed_length, i ) +{ + for ( i = 0; i < asorti( break_pos, junk ) && break_pos[i] < pos ; i++ ) + ; + + if ( break_pos[i] < 1 ) + return; + + part_str = substr( logical_line, pos, break_pos[i] - pos + 1 ) + sub( /^[ \t]+/, " ", part_str ) + removed_length = ( break_pos[i] - pos + 1 ) - length( part_str ) + + tail = substr( logical_line, pos + removed_length ) + logical_line = substr( logical_line, 0, pos - 1 ) tail + + for ( ; i < asorti( break_pos, junk ); i++ ) + break_pos[i] -= removed_length; + + return removed_length +} + + +function delete_linebreaks_in_2nd_token( \ + tail, paren_depth, junk, i, j, k, l ) +{ + if ( logical_line ~ /^[ \t]*#[ \t]*define[ \t]+[0-9A-Za-z_]+\(/ ) + { + tail = logical_line + sub( /^[ \t]*#[ \t]*define[ \t]+[0-9A-Za-z_]+/, "", tail ) + + paren_depth = 0 + l = 0 + i = length( logical_line ) - length( tail ) + 1 # seek to the 1st op paren + j = i + do { + if ( substr( logical_line, j, 2 ) ~ /[ \t][ \t]/ ) + l = shrink_spaces( j ); + else if ( substr( logical_line, j, 1 ) == "(" ) + paren_depth += 1; + else if ( substr( logical_line, j, 1 ) == ")" ) + paren_depth -= 1; + j += 1 + } while ( j < length( logical_line ) && paren_depth != 0 ) + + for ( k = 0; k < asorti( break_pos, junk ); k++ ) + if ( i <= break_pos[k] && break_pos[k] < j ) + break_pos[k] = -1; + + if ( l > 0 ) + shrink_spaces_to_linebreak( j ); + } +} + + +BEGIN{ + init_cpp_src_line() +} +{ + append_line( $0 ) + if ( $0 !~ /\\$/ ) + { + delete_linebreaks_in_2nd_token() + print_line() + init_cpp_src_line() + } +} +END{ + if ( 0 < length( logical_line ) ) + { + delete_linebreaks_in_2nd_token() + print_line() + } +} diff --git a/builds/atari/gen-purec-patch.sh b/builds/atari/gen-purec-patch.sh new file mode 100755 index 0000000..1ec050c --- /dev/null +++ b/builds/atari/gen-purec-patch.sh @@ -0,0 +1,40 @@ +#!/bin/sh + +TOP_DIR=. +OBJ_DIR=. + +for x in "$@" +do + case x"$x" in + x--srcdir=* | x--topdir=* ) + TOP_DIR=`echo $x | sed 's/^--[a-z]*dir=//'` + ;; + x--builddir=* | x--objdir=* ) + OBJ_DIR=`echo $x | sed 's/^--[a-z]*dir=//'` + ;; + esac +done + +mkdir -p ${OBJ_DIR}/builds/atari/tmp/orig + +( cd ${TOP_DIR} && find . -name '*.[CHch]' -type f | fgrep -v builds/atari/tmp | cpio -o ) | \ +( cd ${OBJ_DIR}/builds/atari/tmp/orig && cpio -idum ) +cp ${TOP_DIR}/builds/atari/deflinejoiner.awk ${OBJ_DIR}/builds/atari/tmp + +pushd ${OBJ_DIR}/builds/atari/tmp + + cp -pr orig purec + for f in `cd orig && find . -type f` + do + echo filter $f + env LANG=C awk -f deflinejoiner.awk < orig/$f > purec/$f + done + + echo '#define FT2_BUILD_LIBRARY' > purec/include/ft2build.h + echo '#include "ATARI.H"' >> purec/include/ft2build.h + env LANG=C awk -f deflinejoiner.awk < orig/include/ft2build.h >> purec/include/ft2build.h + + env LANG=C diff -ur orig purec > ../purec.diff + +popd +rm -rf ${OBJ_DIR}/builds/atari/tmp diff --git a/builds/beos/beos-def.mk b/builds/beos/beos-def.mk new file mode 100644 index 0000000..4371a30 --- /dev/null +++ b/builds/beos/beos-def.mk @@ -0,0 +1,76 @@ +# +# FreeType 2 configuration rules for a BeOS system +# +# this is similar to the "ansi-def.mk" file, except for BUILD and PLATFORM +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +DELETE := rm -f +CAT := cat +SEP := / +BUILD_DIR := $(TOP_DIR)/builds/beos +PLATFORM := beos + + +# The directory where all library files are placed. +# +# By default, this is the same as $(OBJ_DIR); however, this can be changed +# to suit particular needs. +# +LIB_DIR := $(OBJ_DIR) + + +# The name of the final library file. Note that the DOS-specific Makefile +# uses a shorter (8.3) name. +# +LIBRARY := lib$(PROJECT) + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := -I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := -D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := -l + + +# Target flag. +# +T := -o$(space) + + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +CFLAGS ?= -c + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +ANSIFLAGS := + + +# EOF diff --git a/builds/beos/beos.mk b/builds/beos/beos.mk new file mode 100644 index 0000000..b5c8bda --- /dev/null +++ b/builds/beos/beos.mk @@ -0,0 +1,19 @@ +# +# FreeType 2 configuration rules for a BeOS system +# + +# Copyright 1996-2000, 2002, 2005 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +include $(TOP_DIR)/builds/beos/beos-def.mk +include $(TOP_DIR)/builds/compiler/ansi-cc.mk +include $(TOP_DIR)/builds/link_std.mk + + +# EOF diff --git a/builds/beos/detect.mk b/builds/beos/detect.mk new file mode 100644 index 0000000..24a0878 --- /dev/null +++ b/builds/beos/detect.mk @@ -0,0 +1,41 @@ +# +# FreeType 2 configuration file to detect an BeOS host platform. +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +.PHONY: setup + + +ifeq ($(PLATFORM),ansi) + + ifdef BE_HOST_CPU + + PLATFORM := beos + + endif # test MACHTYPE beos +endif + +ifeq ($(PLATFORM),beos) + + DELETE := rm -f + CAT := cat + SEP := / + BUILD_DIR := $(TOP_DIR)/builds/beos + CONFIG_FILE := beos.mk + + setup: std_setup + +endif # test PLATFORM beos + + +# EOF diff --git a/builds/compiler/ansi-cc.mk b/builds/compiler/ansi-cc.mk new file mode 100644 index 0000000..3b668e2 --- /dev/null +++ b/builds/compiler/ansi-cc.mk @@ -0,0 +1,80 @@ +# +# FreeType 2 generic pseudo ANSI compiler +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Compiler command line name +# +CC := cc +COMPILER_SEP := $(SEP) + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := o +SO := o + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := a +SA := a + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := -I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := -D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := -l + + +# Target flag. +# +T := -o$(space) + + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +CFLAGS ?= -c + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +# we assume the compiler is already strictly ANSI +# +ANSIFLAGS := + + +# Library linking +# +CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY)) +LINK_LIBRARY = $(AR) -r $@ $(subst /,$(COMPILER_SEP),$(OBJECTS_LIST)) + + +# EOF diff --git a/builds/compiler/bcc-dev.mk b/builds/compiler/bcc-dev.mk new file mode 100644 index 0000000..63a46ad --- /dev/null +++ b/builds/compiler/bcc-dev.mk @@ -0,0 +1,86 @@ +# +# FreeType 2 Borland C++-specific with NO OPTIMIZATIONS + DEBUGGING +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Compiler command line name +# +CC := bcc32 +COMPILER_SEP := $(SEP) + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := obj +SO := obj + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := lib +SA := lib + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := -I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := -D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := + + +# Target flag -- no trailing space. +# +T := -o +TE := -e + + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +CFLAGS ?= -q -c -y -d -v -Od -w-par -w-ccc -w-rch -w-pro -w-aus + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +ANSIFLAGS := -A + + +# Library linking +# +CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY)) +LINK_LIBRARY = tlib /u /P128 $(subst /,$(COMPILER_SEP),$@ $(OBJECTS_LIST:%=+%)) + + +# Borland C++ specific temporary files +# +CLEAN += \ + $(subst /,$(SEP),$(TOP_DIR)/apinames.$(O)) \ + $(subst /,$(SEP),$(OBJ_DIR)/apinames.tds) + + +# EOF diff --git a/builds/compiler/bcc.mk b/builds/compiler/bcc.mk new file mode 100644 index 0000000..855edad --- /dev/null +++ b/builds/compiler/bcc.mk @@ -0,0 +1,86 @@ +# +# FreeType 2 Borland C++-specific rules +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Compiler command line name +# +CC := bcc32 +COMPILER_SEP := $(SEP) + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := obj +SO := obj + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := lib +SA := lib + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := -I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := -D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := + + +# Target flag -- no trailing space. +# +T := -o +TE := -e + + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +CFLAGS ?= -c -q -y -d -v -Od -w-par -w-ccc -w-rch -w-pro -w-aus + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +ANSIFLAGS := -A + + +# Library linking +# +CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY)) +LINK_LIBRARY = tlib /u /P128 $(subst /,$(COMPILER_SEP),$@ $(OBJECTS_LIST:%=+%)) + + +# Borland C++ specific temporary files +# +CLEAN += \ + $(subst /,$(SEP),$(TOP_DIR)/apinames.$(O)) \ + $(subst /,$(SEP),$(OBJ_DIR)/apinames.tds) + + +# EOF diff --git a/builds/compiler/emx.mk b/builds/compiler/emx.mk new file mode 100644 index 0000000..c237005 --- /dev/null +++ b/builds/compiler/emx.mk @@ -0,0 +1,77 @@ +# +# FreeType 2 emx-specific definitions +# + + +# Copyright 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Compiler command line name +# +CC := set GCCOPT="-ansi -pedantic"; gcc +COMPILER_SEP := / + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := o +SO := o + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := a +SA := a + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := -I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := -D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := -l + + +# Target flag. +# +T := -o$(space) + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +CFLAGS ?= -c -g -O6 -Wall + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +ANSIFLAGS := + + +# Library linking +# +CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY)) +LINK_LIBRARY = $(foreach m,$(OBJECTS_LIST),$(AR) -r $@ $(m);) echo > nul + + +# EOF diff --git a/builds/compiler/gcc-dev.mk b/builds/compiler/gcc-dev.mk new file mode 100644 index 0000000..c63e126 --- /dev/null +++ b/builds/compiler/gcc-dev.mk @@ -0,0 +1,95 @@ +# +# FreeType 2 gcc-specific with NO OPTIMIZATIONS + DEBUGGING +# + + +# Copyright 1996-2000, 2003, 2004, 2005, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Compiler command line name +# +CC := gcc +COMPILER_SEP := / + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := o +SO := o + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := a +SA := a + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := -I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := -D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := -l + + +# Target flag. +# +T := -o$(space) + + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +ifndef CFLAGS + ifeq ($(findstring g++,$(CC)),) + nested_externs := -Wnested-externs + strict_prototypes := -Wstrict-prototypes + endif + + CFLAGS := -c -g -O0 \ + -Wall \ + -W \ + -Wundef \ + -Wshadow \ + -Wpointer-arith \ + -Wwrite-strings \ + -Wredundant-decls \ + -Wno-long-long \ + $(nested_externs) \ + $(strict_prototypes) +endif + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +ANSIFLAGS := -ansi -pedantic + + +# Library linking +# +CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY)) +LINK_LIBRARY = $(AR) -r $@ $(OBJECTS_LIST) + + +# EOF diff --git a/builds/compiler/gcc.mk b/builds/compiler/gcc.mk new file mode 100644 index 0000000..f6b7101 --- /dev/null +++ b/builds/compiler/gcc.mk @@ -0,0 +1,77 @@ +# +# FreeType 2 gcc-specific definitions +# + + +# Copyright 1996-2000, 2003, 2005, 2006, 2009 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Compiler command line name +# +CC := gcc +COMPILER_SEP := / + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := o +SO := o + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := a +SA := a + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := -I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := -D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := -l + + +# Target flag. +# +T := -o$(space) + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +CFLAGS ?= -c -g -O3 -Wall + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +ANSIFLAGS := -ansi -pedantic + + +# Library linking +# +CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY)) +LINK_LIBRARY = $(AR) -r $@ $(OBJECTS_LIST) + + +# EOF diff --git a/builds/compiler/intelc.mk b/builds/compiler/intelc.mk new file mode 100644 index 0000000..413ce5b --- /dev/null +++ b/builds/compiler/intelc.mk @@ -0,0 +1,85 @@ +# +# FreeType 2 Intel C/C++ definitions (VC++ compatibility mode) +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# compiler command line name +# +CC := icl +COMPILER_SEP := $(SEP) + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := obj +SO := obj + + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := lib +SA := lib + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := /I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := /D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := /Fl + + +# Target flag. +# +T := /Fo +TE := /Fe + + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +# Note that the Intel C/C++ compiler version 4.5 complains about +# the use of FT_FIELD_OFFSET with "value must be arithmetic type"! +# This really looks like a bug in the compiler because the macro +# _does_ compute an arithmetic value, so we disable this warning +# with "/Qwd32". +# +CFLAGS ?= /nologo /c /Ox /G5 /W3 /Qwd32 + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +ANSIFLAGS := /Qansi_alias /Za + +# Library linking +# +#CLEAN_LIBRARY = +LINK_LIBRARY = lib /nologo /out:$(subst /,$(COMPILER_SEP),$@ $(OBJECTS_LIST)) + + +# EOF diff --git a/builds/compiler/unix-lcc.mk b/builds/compiler/unix-lcc.mk new file mode 100644 index 0000000..d79f508 --- /dev/null +++ b/builds/compiler/unix-lcc.mk @@ -0,0 +1,83 @@ +# +# FreeType 2 Unix LCC specific definitions +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Command line name +# +CC := lcc +COMPILER_SEP := $(SEP) + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := o +SO := o + + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := a +SA := a + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := -I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := -D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := -l + + +# Target flag. +# +T := -o$(space) + + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +CFLAGS ?= -c -g + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +# LCC is pure ANSI anyway! +# +# the "-A" flag simply increments verbosity about non ANSI code +# +ANSIFLAGS := -A + + +# library linking +# +CLEAN_LIBRARY ?= $(DELETE) $(PROJECT_LIBRARY) +LINK_LIBRARY = $(AR) -r $@ $(OBJECTS_LIST) + + +# EOF diff --git a/builds/compiler/visualage.mk b/builds/compiler/visualage.mk new file mode 100644 index 0000000..c109659 --- /dev/null +++ b/builds/compiler/visualage.mk @@ -0,0 +1,76 @@ +# +# FreeType 2 Visual Age C++ specific definitions +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# command line compiler name +# +CC := icc +COMPILER_SEP := $(SEP) + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := obj +SO := obj + + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := lib +SA := lib + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := /I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := /D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := /Fl + + +# Target flag. +# +T := /Fo + + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +CFLAGS ?= /Q- /Gd+ /O2 /G5 /W3 /C + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +ANSI_FLAGS := /Sa + + +# Library linking +# +#CLEAN_LIBRARY := +LINK_LIBRARY = lib /nologo /out:$(subst /,$(COMPILER_SEP),$@ $(OBJECTS_LIST)) + + +# EOF diff --git a/builds/compiler/visualc.mk b/builds/compiler/visualc.mk new file mode 100644 index 0000000..2e19ef8 --- /dev/null +++ b/builds/compiler/visualc.mk @@ -0,0 +1,82 @@ +# +# FreeType 2 Visual C++ definitions +# + + +# Copyright 1996-2000, 2003, 2005, 2006, 2008 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# compiler command line name +# +CC := cl +COMPILER_SEP := $(SEP) + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := obj +SO := obj + + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := lib +SA := lib + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := /I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := /D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := /Fl + + +# Target flag. +# +T := /Fo + +# Target executable flag +# +TE := /Fe + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +CFLAGS ?= /nologo /c /Ox /W3 /WX + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +ANSIFLAGS := /Za /D_CRT_SECURE_NO_DEPRECATE + + +# Library linking +# +#CLEAN_LIBRARY = +LINK_LIBRARY = lib /nologo /out:$(subst /,$(COMPILER_SEP),$@ $(OBJECTS_LIST)) + + +# EOF diff --git a/builds/compiler/watcom.mk b/builds/compiler/watcom.mk new file mode 100644 index 0000000..4db1e7f --- /dev/null +++ b/builds/compiler/watcom.mk @@ -0,0 +1,81 @@ +# +# FreeType 2 Watcom-specific definitions +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Compiler command line name +# +CC := wcc386 +COMPILER_SEP := $(SEP) + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := obj +SO := obj + + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := lib +SA := lib + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := -I= + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := -D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := -l + + +# Target flag. +# +T := -FO= + + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +CFLAGS ?= -zq + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +ANSIFLAGS := -za + + +# Library linking +# +CLEAN_LIBRARY ?= $(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY)) +LINK_LIBRARY = $(subst /,$(COMPILER_SEP), \ + wlib -q -n $@; \ + $(foreach m, $(OBJECTS_LIST), wlib -q $@ +$(m);) \ + echo > nul) + +# EOF diff --git a/builds/compiler/win-lcc.mk b/builds/compiler/win-lcc.mk new file mode 100644 index 0000000..5d02d82 --- /dev/null +++ b/builds/compiler/win-lcc.mk @@ -0,0 +1,81 @@ +# +# FreeType 2 Win32-LCC specific definitions +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Command line name +# +CC := lcc +COMPILER_SEP := $(SEP) + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := obj +SO := obj + + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := lib +SA := lib + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := -I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := -D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := -Fl + + +# Target flag. +# +T := -Fo + + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +CFLAGS ?= -c -g2 -O + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +# LCC is pure ANSI anyway! +# +ANSIFLAGS := + + +# library linking +# +#CLEAN_LIBRARY := +LINK_LIBRARY = lcclib /out:$(subst /,$(COMPILER_SEP),$@ $(OBJECTS_LIST)) + + +# EOF diff --git a/builds/detect.mk b/builds/detect.mk new file mode 100644 index 0000000..987ae51 --- /dev/null +++ b/builds/detect.mk @@ -0,0 +1,154 @@ +# +# FreeType 2 host platform detection rules +# + + +# Copyright 1996-2000, 2001, 2002, 2003, 2006, 2008 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# This sub-Makefile is in charge of detecting the current platform. It sets +# the following variables: +# +# BUILD_DIR The configuration and system-specific directory. Usually +# `freetype/builds/$(PLATFORM)' but can be different for +# custom builds of the library. +# +# The following variables must be defined in system specific `detect.mk' +# files: +# +# PLATFORM The detected platform. This will default to `ansi' if +# auto-detection fails. +# CONFIG_FILE The configuration sub-makefile to use. This usually depends +# on the compiler defined in the `CC' environment variable. +# DELETE The shell command used to remove a given file. +# COPY The shell command used to copy one file. +# SEP The platform-specific directory separator. +# COMPILER_SEP The separator used in arguments of the compilation tools. +# CC The compiler to use. +# +# You need to set the following variable(s) before calling it: +# +# TOP_DIR The top-most directory in the FreeType library source +# hierarchy. If not defined, it will default to `.'. + +# Set auto-detection default to `ansi' resp. UNIX-like operating systems. +# +PLATFORM := ansi +DELETE := $(RM) +COPY := cp +CAT := cat +SEP := / + +BUILD_CONFIG := $(TOP_DIR)/builds + +# These two assignments must be delayed. +BUILD_DIR = $(BUILD_CONFIG)/$(PLATFORM) +CONFIG_RULES = $(BUILD_DIR)/$(CONFIG_FILE) + +# We define the BACKSLASH variable to hold a single back-slash character. +# This is needed because a line like +# +# SEP := \ +# +# does not work with GNU Make (the backslash is interpreted as a line +# continuation). While a line like +# +# SEP := \\ +# +# really defines $(SEP) as `\' on Unix, and `\\' on Dos and Windows! +# +BACKSLASH := $(strip \ ) + +# Find all auto-detectable platforms. +# +PLATFORMS := $(notdir $(subst /detect.mk,,$(wildcard $(BUILD_CONFIG)/*/detect.mk))) +.PHONY: $(PLATFORMS) ansi + +# Filter out platform specified as setup target. +# +PLATFORM := $(firstword $(filter $(MAKECMDGOALS),$(PLATFORMS))) + +# If no setup target platform was specified, enable auto-detection/ +# default platform. +# +ifeq ($(PLATFORM),) + PLATFORM := ansi +endif + +# If the user has explicitly asked for `ansi' on the command line, +# disable auto-detection. +# +ifeq ($(findstring ansi,$(MAKECMDGOALS)),) + # Now, include all detection rule files found in the `builds/' + # directories. Note that the calling order of the various `detect.mk' + # files isn't predictable. + # + include $(wildcard $(BUILD_CONFIG)/*/detect.mk) +endif + +# In case no detection rule file was successful, use the default. +# +ifndef CONFIG_FILE + CONFIG_FILE := ansi.mk + setup: std_setup + .PHONY: setup +endif + +# The following targets are equivalent, with the exception that they use +# a slightly different syntax for the `echo' command. +# +# std_setup: defined for most (i.e. Unix-like) platforms +# dos_setup: defined for Dos-ish platforms like Dos, Windows & OS/2 +# +.PHONY: std_setup dos_setup + +std_setup: + @echo "" + @echo "$(PROJECT_TITLE) build system -- automatic system detection" + @echo "" + @echo "The following settings are used:" + @echo "" + @echo " platform $(PLATFORM)" + @echo " compiler $(CC)" + @echo " configuration directory $(BUILD_DIR)" + @echo " configuration rules $(CONFIG_RULES)" + @echo "" + @echo "If this does not correspond to your system or settings please remove the file" + @echo "\`$(CONFIG_MK)' from this directory then read the INSTALL file for help." + @echo "" + @echo "Otherwise, simply type \`$(MAKE)' again to build the library," + @echo "or \`$(MAKE) refdoc' to build the API reference (the latter needs python)." + @echo "" + @$(COPY) $(CONFIG_RULES) $(CONFIG_MK) + + +# Special case for Dos, Windows, OS/2, where echo "" doesn't work correctly! +# +dos_setup: + @type builds$(SEP)newline + @echo $(PROJECT_TITLE) build system -- automatic system detection + @type builds$(SEP)newline + @echo The following settings are used: + @type builds$(SEP)newline + @echo platformÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ$(PLATFORM) + @echo compilerÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ$(CC) + @echo configuration directoryÿÿÿÿÿÿ$(subst /,$(SEP),$(BUILD_DIR)) + @echo configuration rulesÿÿÿÿÿÿÿÿÿÿ$(subst /,$(SEP),$(CONFIG_RULES)) + @type builds$(SEP)newline + @echo If this does not correspond to your system or settings please remove the file + @echo '$(CONFIG_MK)' from this directory then read the INSTALL file for help. + @type builds$(SEP)newline + @echo Otherwise, simply type 'make' again to build the library. + @echo or 'make refdoc' to build the API reference (the latter needs python). + @type builds$(SEP)newline + @$(COPY) $(subst /,$(SEP),$(CONFIG_RULES) $(CONFIG_MK)) > nul + + +# EOF diff --git a/builds/dos/detect.mk b/builds/dos/detect.mk new file mode 100644 index 0000000..700a122 --- /dev/null +++ b/builds/dos/detect.mk @@ -0,0 +1,142 @@ +# +# FreeType 2 configuration file to detect a DOS host platform. +# + + +# Copyright 1996-2000, 2003, 2004, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +.PHONY: setup + + +ifeq ($(PLATFORM),ansi) + + # Test for DJGPP by checking the DJGPP environment variable, which must be + # set in order to use the system (ie. it will always be present when the + # `make' utility is run). + # + # We test for the COMSPEC environment variable, then run the `ver' + # command-line program to see if its output contains the word `Dos' or + # `DOS'. + # + # If this is true, we are running a Dos-ish platform (or an emulation). + # + ifdef DJGPP + PLATFORM := dos + else + ifdef COMSPEC + is_dos := $(findstring DOS,$(subst Dos,DOS,$(shell ver))) + + # We try to recognize a Dos session under OS/2. The `ver' command + # returns `Operating System/2 ...' there, so `is_dos' should be empty. + # + # To recognize a Dos session under OS/2, we check COMSPEC for the + # substring `MDOS\COMMAND' + # + ifeq ($(is_dos),) + is_dos := $(findstring MDOS\COMMAND,$(COMSPEC)) + endif + + # We also try to recognize Dos 7.x without Windows 9X launched. + # See builds/win32/detect.mk for explanations about the logic. + # + ifeq ($(is_dos),) + ifdef winbootdir +#ifneq ($(OS),Windows_NT) + # If win32 is available, do not trigger this test. + ifndef windir + is_dos := $(findstring Windows,$(strip $(shell ver))) + endif +#endif + endif + endif + + endif # test COMSPEC + + ifneq ($(is_dos),) + + PLATFORM := dos + + endif # test Dos + endif # test DJGPP +endif # test PLATFORM ansi + +ifeq ($(PLATFORM),dos) + + # Use DJGPP (i.e. gcc) by default. + # + CONFIG_FILE := dos-gcc.mk + CC ?= gcc + + # additionally, we provide hooks for various other compilers + # + ifneq ($(findstring emx,$(MAKECMDGOALS)),) # EMX gcc + CONFIG_FILE := dos-emx.mk + CC := gcc + emx: setup + .PHONY: emx + endif + + ifneq ($(findstring turboc,$(MAKECMDGOALS)),) # Turbo C + CONFIG_FILE := dos-tcc.mk + CC := tcc + turboc: setup + .PHONY: turboc + endif + + ifneq ($(findstring watcom,$(MAKECMDGOALS)),) # Watcom C/C++ + CONFIG_FILE := dos-wat.mk + CC := wcc386 + watcom: setup + .PHONY: watcom + endif + + ifneq ($(findstring borlandc,$(MAKECMDGOALS)),) # Borland C/C++ 32-bit + CONFIG_FILE := dos-bcc.mk + CC := bcc32 + borlandc: setup + .PHONY: borlandc + endif + + ifneq ($(findstring borlandc16,$(MAKECMDGOALS)),) # Borland C/C++ 16-bit + CONFIG_FILE := dos-bcc.mk + CC := bcc + borlandc16: setup + .PHONY: borlandc16 + endif + + ifneq ($(findstring bash,$(SHELL)),) # check for bash + SEP := / + DELETE := rm + COPY := cp + CAT := cat + setup: std_setup + else + SEP := $(BACKSLASH) + DELETE := del + CAT := type + + # Setting COPY is a bit trickier. We can be running DJGPP on some + # Windows NT derivatives, like XP. See builds/win32/detect.mk for + # explanations why we need hacking here. + # + ifeq ($(OS),Windows_NT) + COPY := cmd.exe /c copy + else + COPY := copy + endif # test NT + + setup: dos_setup + endif + +endif # test PLATFORM dos + + +# EOF diff --git a/builds/dos/dos-def.mk b/builds/dos/dos-def.mk new file mode 100644 index 0000000..950f581 --- /dev/null +++ b/builds/dos/dos-def.mk @@ -0,0 +1,45 @@ +# +# FreeType 2 DOS specific definitions +# + + +# Copyright 1996-2000, 2003, 2005, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +DELETE := del +CAT := type +SEP := $(strip \ ) +BUILD_DIR := $(TOP_DIR)/builds/dos +PLATFORM := dos + + +# The executable file extension (for tools), *with* leading dot. +# +E := .exe + +# The directory where all library files are placed. +# +# By default, this is the same as $(OBJ_DIR); however, this can be changed +# to suit particular needs. +# +LIB_DIR := $(OBJ_DIR) + +# The name of the final library file. Note that the DOS-specific Makefile +# uses a shorter (8.3) name. +# +LIBRARY := $(PROJECT) + + +# The NO_OUTPUT macro is used to ignore the output of commands. +# +NO_OUTPUT = > nul + + +# EOF diff --git a/builds/dos/dos-emx.mk b/builds/dos/dos-emx.mk new file mode 100644 index 0000000..6ea8f6d --- /dev/null +++ b/builds/dos/dos-emx.mk @@ -0,0 +1,21 @@ +# +# FreeType 2 configuration rules for the EMX gcc compiler +# + + +# Copyright 2003 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +include $(TOP_DIR)/builds/dos/dos-def.mk +include $(TOP_DIR)/builds/compiler/emx.mk +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/dos/dos-gcc.mk b/builds/dos/dos-gcc.mk new file mode 100644 index 0000000..e14255c --- /dev/null +++ b/builds/dos/dos-gcc.mk @@ -0,0 +1,21 @@ +# +# FreeType 2 configuration rules for the DJGPP compiler +# + + +# Copyright 1996-2000, 2003 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +include $(TOP_DIR)/builds/dos/dos-def.mk +include $(TOP_DIR)/builds/compiler/gcc.mk +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/dos/dos-wat.mk b/builds/dos/dos-wat.mk new file mode 100644 index 0000000..c763b16 --- /dev/null +++ b/builds/dos/dos-wat.mk @@ -0,0 +1,20 @@ +# +# FreeType 2 configuration rules for the Watcom C/C++ compiler +# + + +# Copyright 2003 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +include $(TOP_DIR)/builds/dos/dos-def.mk +include $(TOP_DIR)/builds/compiler/watcom.mk +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/exports.mk b/builds/exports.mk new file mode 100644 index 0000000..52f2912 --- /dev/null +++ b/builds/exports.mk @@ -0,0 +1,76 @@ +# +# FreeType 2 exports sub-Makefile +# + + +# Copyright 2005, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# DO NOT INVOKE THIS MAKEFILE DIRECTLY! IT IS MEANT TO BE INCLUDED BY +# OTHER MAKEFILES. + + +# This sub-Makefile is used to compute the list of exported symbols whenever +# the EXPORTS_LIST variable is defined by one of the platform or compiler +# specific build files. +# +# EXPORTS_LIST contains the name of the `list' file, for example a Windows +# .DEF file. +# +ifneq ($(EXPORTS_LIST),) + + # CCexe is the compiler used to compile the `apinames' tool program + # on the host machine. This isn't necessarily the same as the compiler + # which can be a cross-compiler for a different architecture, for example. + # + ifeq ($(CCexe),) + CCexe := $(CC) + endif + + # TE acts like T, but for executables instead of object files. + ifeq ($(TE),) + TE := $T + endif + + # The list of public headers we're going to parse. + PUBLIC_HEADERS := $(wildcard $(PUBLIC_DIR)/*.h) + + # The `apinames' source and executable. We use $E_BUILD as the host + # executable suffix, which *includes* the final dot. + # + # Note that $(APINAMES_OPTIONS) is empty, except for Windows compilers. + # + APINAMES_SRC := $(subst /,$(SEP),$(TOP_DIR)/src/tools/apinames.c) + APINAMES_EXE := $(subst /,$(SEP),$(OBJ_DIR)/apinames$(E_BUILD)) + + $(APINAMES_EXE): $(APINAMES_SRC) + $(CCexe) $(TE)$@ $< + + .PHONY: symbols_list + + symbols_list: $(EXPORTS_LIST) + + # We manually add TT_New_Context and TT_RunIns, which are needed by TT + # debuggers, to the EXPORTS_LIST. + # + $(EXPORTS_LIST): $(APINAMES_EXE) $(PUBLIC_HEADERS) + $(subst /,$(SEP),$(APINAMES_EXE)) -o$@ $(APINAMES_OPTIONS) $(PUBLIC_HEADERS) + @echo TT_New_Context >> $(EXPORTS_LIST) + @echo TT_RunIns >> $(EXPORTS_LIST) + + $(PROJECT_LIBRARY): $(EXPORTS_LIST) + + CLEAN += $(EXPORTS_LIST) \ + $(APINAMES_EXE) + +endif + + +# EOF diff --git a/builds/freetype.mk b/builds/freetype.mk new file mode 100644 index 0000000..7a89c8e --- /dev/null +++ b/builds/freetype.mk @@ -0,0 +1,361 @@ +# +# FreeType 2 library sub-Makefile +# + + +# Copyright 1996-2000, 2001, 2002, 2003, 2004, 2005, 2006, 2008 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# DO NOT INVOKE THIS MAKEFILE DIRECTLY! IT IS MEANT TO BE INCLUDED BY +# OTHER MAKEFILES. + + +# The following variables (set by other Makefile components, in the +# environment, or on the command line) are used: +# +# BUILD_DIR The architecture dependent directory, +# e.g. `$(TOP_DIR)/builds/unix'. Added to INCLUDES also. +# +# OBJ_DIR The directory in which object files are created. +# +# LIB_DIR The directory in which the library is created. +# +# DOC_DIR The directory in which the API reference is created. +# +# INCLUDES A list of directories to be included additionally. +# +# DEVEL_DIR Development directory which is added to the INCLUDES +# variable before the standard include directories. +# +# CFLAGS Compilation flags. This overrides the default settings +# in the platform-specific configuration files. +# +# FTSYS_SRC If set, its value is used as the name of a replacement +# file for `src/base/ftsystem.c'. +# +# FTDEBUG_SRC If set, its value is used as the name of a replacement +# file for `src/base/ftdebug.c'. [For a normal build, this +# file does nothing.] +# +# FTMODULE_H The file which contains the list of module classes for +# the current build. Usually, this is automatically +# created by `modules.mk'. +# +# BASE_OBJ_S +# BASE_OBJ_M A list of base objects (for single object and multiple +# object builds, respectively). Set up in +# `src/base/rules.mk'. +# +# BASE_EXT_OBJ A list of base extension objects. Set up in +# `src/base/rules.mk'. +# +# DRV_OBJ_S +# DRV_OBJ_M A list of driver objects (for single object and multiple +# object builds, respectively). Set up cumulatively in +# `src//rules.mk'. +# +# CLEAN +# DISTCLEAN The sub-makefiles can append additional stuff to these two +# variables which is to be removed for the `clean' resp. +# `distclean' target. +# +# TOP_DIR, SEP, +# COMPILER_SEP, +# LIBRARY, CC, +# A, I, O, T Check `config.mk' for details. + + +# The targets `objects' and `library' are defined at the end of this +# Makefile after all other rules have been included. +# +.PHONY: single multi objects library refdoc + +# default target -- build single objects and library +# +single: objects library + +# `multi' target -- build multiple objects and library +# +multi: objects library + + +# The FreeType source directory, usually `./src'. +# +SRC_DIR := $(TOP_DIR)/src + +# The directory where the base layer components are placed, usually +# `./src/base'. +# +BASE_DIR := $(SRC_DIR)/base + +# Other derived directories. +# +PUBLIC_DIR := $(TOP_DIR)/include/freetype +INTERNAL_DIR := $(PUBLIC_DIR)/internal +SERVICES_DIR := $(INTERNAL_DIR)/services +CONFIG_DIR := $(PUBLIC_DIR)/config + +# The documentation directory. +# +DOC_DIR ?= $(TOP_DIR)/docs/reference + +# The final name of the library file. +# +PROJECT_LIBRARY := $(LIB_DIR)/$(LIBRARY).$A + + +# include paths +# +# IMPORTANT NOTE: The architecture-dependent directory must ALWAYS be placed +# before the standard include list. Porters are then able to +# put their own version of some of the FreeType components +# in the `freetype/builds/' directory, as these +# files will override the default sources. +# +INCLUDES := $(subst /,$(COMPILER_SEP),$(OBJ_DIR) \ + $(DEVEL_DIR) \ + $(BUILD_DIR) \ + $(TOP_DIR)/include) + +INCLUDE_FLAGS := $(INCLUDES:%=$I%) + + +# C flags used for the compilation of an object file. This must include at +# least the paths for the `base' and `builds/' directories; +# debug/optimization/warning flags + ansi compliance if needed. +# +# $(INCLUDE_FLAGS) should come before $(CFLAGS) to avoid problems with +# old FreeType versions. +# +# Note what we also define the macro FT2_BUILD_LIBRARY when building +# FreeType. This is required to let our sources include the internal +# headers (something forbidden by clients). +# +# Finally, we define FT_CONFIG_MODULES_H so that the compiler uses the +# generated version of `ftmodule.h' in $(OBJ_DIR). If there is an +# `ftoption.h' files in $(OBJ_DIR), define FT_CONFIG_OPTIONS_H too. +# +ifneq ($(wildcard $(OBJ_DIR)/ftoption.h),) + FTOPTION_H := $(OBJ_DIR)/ftoption.h + FTOPTION_FLAG := $DFT_CONFIG_OPTIONS_H="" +endif + +FT_CFLAGS = $(CPPFLAGS) \ + $(INCLUDE_FLAGS) \ + $(CFLAGS) \ + $DFT2_BUILD_LIBRARY \ + $DFT_CONFIG_MODULES_H="" \ + $(FTOPTION_FLAG) +FT_CC = $(CC) $(FT_CFLAGS) +FT_COMPILE = $(CC) $(ANSIFLAGS) $(FT_CFLAGS) + + +# Include the `exports' rules file. +# +include $(TOP_DIR)/builds/exports.mk + + +# Initialize the list of objects. +# +OBJECTS_LIST := + + +# Define $(PUBLIC_H) as the list of all public header files located in +# `$(TOP_DIR)/include/freetype'. $(INTERNAL_H), and $(CONFIG_H) are defined +# similarly. +# +# This is used to simplify the dependency rules -- if one of these files +# changes, the whole library is recompiled. +# +PUBLIC_H := $(wildcard $(PUBLIC_DIR)/*.h) +INTERNAL_H := $(wildcard $(INTERNAL_DIR)/*.h) \ + $(wildcard $(SERVICES_DIR)/*.h) +CONFIG_H := $(wildcard $(CONFIG_DIR)/*.h) \ + $(wildcard $(BUILD_DIR)/freetype/config/*.h) \ + $(FTMODULE_H) \ + $(FTOPTION_H) +DEVEL_H := $(wildcard $(TOP_DIR)/devel/*.h) + +FREETYPE_H := $(PUBLIC_H) $(INTERNAL_H) $(CONFIG_H) $(DEVEL_H) + + +# ftsystem component +# +FTSYS_SRC ?= $(BASE_DIR)/ftsystem.c + +FTSYS_OBJ := $(OBJ_DIR)/ftsystem.$O + +OBJECTS_LIST += $(FTSYS_OBJ) + +$(FTSYS_OBJ): $(FTSYS_SRC) $(FREETYPE_H) + $(FT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# ftdebug component +# +FTDEBUG_SRC ?= $(BASE_DIR)/ftdebug.c + +FTDEBUG_OBJ := $(OBJ_DIR)/ftdebug.$O + +OBJECTS_LIST += $(FTDEBUG_OBJ) + +$(FTDEBUG_OBJ): $(FTDEBUG_SRC) $(FREETYPE_H) + $(FT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# Include all rule files from FreeType components. +# +include $(SRC_DIR)/base/rules.mk +include $(patsubst %,$(SRC_DIR)/%/rules.mk,$(MODULES)) + + +# ftinit component +# +# The C source `ftinit.c' contains the FreeType initialization routines. +# It is able to automatically register one or more drivers when the API +# function FT_Init_FreeType() is called. +# +# The set of initial drivers is determined by the driver Makefiles +# includes above. Each driver Makefile updates the FTINIT_xxx lists +# which contain additional include paths and macros used to compile the +# single `ftinit.c' source. +# +FTINIT_SRC := $(BASE_DIR)/ftinit.c +FTINIT_OBJ := $(OBJ_DIR)/ftinit.$O + +OBJECTS_LIST += $(FTINIT_OBJ) + +$(FTINIT_OBJ): $(FTINIT_SRC) $(FREETYPE_H) + $(FT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# All FreeType library objects. +# +OBJ_M := $(BASE_OBJ_M) $(BASE_EXT_OBJ) $(DRV_OBJS_M) +OBJ_S := $(BASE_OBJ_S) $(BASE_EXT_OBJ) $(DRV_OBJS_S) + + +# The target `multi' on the Make command line indicates that we want to +# compile each source file independently. +# +# Otherwise, each module/driver is compiled in a single object file through +# source file inclusion (see `src/base/ftbase.c' or +# `src/truetype/truetype.c' for examples). +# +BASE_OBJECTS := $(OBJECTS_LIST) + +ifneq ($(findstring multi,$(MAKECMDGOALS)),) + OBJECTS_LIST += $(OBJ_M) +else + OBJECTS_LIST += $(OBJ_S) +endif + +objects: $(OBJECTS_LIST) + +library: $(PROJECT_LIBRARY) + +dll: $(PROJECT_LIBRARY) exported_symbols + +.c.$O: + $(FT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +ifneq ($(findstring refdoc,$(MAKECMDGOALS)),) + # poor man's `sed' emulation with make's built-in string functions + work := $(strip $(shell $(CAT) $(PUBLIC_DIR)/freetype.h)) + work := $(subst |,x,$(work)) + work := $(subst $(space),|,$(work)) + work := $(subst \#define|FREETYPE_MAJOR|,$(space),$(work)) + work := $(word 2,$(work)) + major := $(subst |,$(space),$(work)) + major := $(firstword $(major)) + + work := $(subst \#define|FREETYPE_MINOR|,$(space),$(work)) + work := $(word 2,$(work)) + minor := $(subst |,$(space),$(work)) + minor := $(firstword $(minor)) + + work := $(subst \#define|FREETYPE_PATCH|,$(space),$(work)) + work := $(word 2,$(work)) + patch := $(subst |,$(space),$(work)) + patch := $(firstword $(patch)) + + version := $(major).$(minor).$(patch) +endif + +# We write-protect the docmaker directory to suppress generation +# of .pyc files. +# +refdoc: + -chmod -w $(SRC_DIR)/tools/docmaker + python $(SRC_DIR)/tools/docmaker/docmaker.py \ + --prefix=ft2 \ + --title=FreeType-$(version) \ + --output=$(DOC_DIR) \ + $(PUBLIC_DIR)/*.h \ + $(PUBLIC_DIR)/config/*.h \ + $(PUBLIC_DIR)/cache/*.h + -chmod +w $(SRC_DIR)/tools/docmaker + + +.PHONY: clean_project_std distclean_project_std + +# Standard cleaning and distclean rules. These are not accepted +# on all systems though. +# +clean_project_std: + -$(DELETE) $(BASE_OBJECTS) $(OBJ_M) $(OBJ_S) $(CLEAN) + +distclean_project_std: clean_project_std + -$(DELETE) $(PROJECT_LIBRARY) + -$(DELETE) *.orig *~ core *.core $(DISTCLEAN) + + +.PHONY: clean_project_dos distclean_project_dos + +# The Dos command shell does not support very long list of arguments, so +# we are stuck with wildcards. +# +# Don't break the command lines with \; this prevents the "del" command from +# working correctly on Win9x. +# +clean_project_dos: + -$(DELETE) $(subst /,$(SEP),$(OBJ_DIR)/*.$O $(CLEAN) $(NO_OUTPUT)) + +distclean_project_dos: clean_project_dos + -$(DELETE) $(subst /,$(SEP),$(PROJECT_LIBRARY) $(DISTCLEAN) $(NO_OUTPUT)) + + +.PHONY: remove_config_mk remove_ftmodule_h + +# Remove configuration file (used for distclean). +# +remove_config_mk: + -$(DELETE) $(subst /,$(SEP),$(CONFIG_MK) $(NO_OUTPUT)) + +# Remove module list (used for distclean). +# +remove_ftmodule_h: + -$(DELETE) $(subst /,$(SEP),$(FTMODULE_H) $(NO_OUTPUT)) + + +.PHONY: clean distclean + +# The `config.mk' file must define `clean_freetype' and +# `distclean_freetype'. Implementations may use to relay these to either +# the `std' or `dos' versions from above, or simply provide their own +# implementation. +# +clean: clean_project +distclean: distclean_project remove_config_mk remove_ftmodule_h + -$(DELETE) $(subst /,$(SEP),$(DOC_DIR)/*.html $(NO_OUTPUT)) + + +# EOF diff --git a/builds/link_dos.mk b/builds/link_dos.mk new file mode 100644 index 0000000..c37ac7e --- /dev/null +++ b/builds/link_dos.mk @@ -0,0 +1,42 @@ +# +# Link instructions for Dos-like systems (Dos, Win32, OS/2) +# + + +# Copyright 1996-2000 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +ifdef BUILD_PROJECT + + .PHONY: clean_project distclean_project + + # Now include the main sub-makefile. It contains all the rules used to + # build the library with the previous variables defined. + # + include $(TOP_DIR)/builds/$(PROJECT).mk + + # The cleanup targets. + # + clean_project: clean_project_dos + distclean_project: distclean_project_dos + + # This final rule is used to link all object files into a single library. + # this is compiler-specific + # + $(PROJECT_LIBRARY): $(OBJECTS_LIST) + ifdef CLEAN_LIBRARY + -$(CLEAN_LIBRARY) $(NO_OUTPUT) + endif + $(LINK_LIBRARY) + +endif + + +# EOF diff --git a/builds/link_std.mk b/builds/link_std.mk new file mode 100644 index 0000000..0bd2163 --- /dev/null +++ b/builds/link_std.mk @@ -0,0 +1,42 @@ +# +# Link instructions for standard systems +# + + +# Copyright 1996-2000 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +ifdef BUILD_PROJECT + + .PHONY: clean_project distclean_project + + # Now include the main sub-makefile. It contains all the rules used to + # build the library with the previous variables defined. + # + include $(TOP_DIR)/builds/$(PROJECT).mk + + # The cleanup targets. + # + clean_project: clean_project_std + distclean_project: distclean_project_std + + # This final rule is used to link all object files into a single library. + # this is compiler-specific + # + $(PROJECT_LIBRARY): $(OBJECTS_LIST) + ifdef CLEAN_LIBRARY + -$(CLEAN_LIBRARY) $(NO_OUTPUT) + endif + $(LINK_LIBRARY) + +endif + + +# EOF diff --git a/builds/mac/FreeType.m68k_cfm.make.txt b/builds/mac/FreeType.m68k_cfm.make.txt new file mode 100644 index 0000000..425f9f9 --- /dev/null +++ b/builds/mac/FreeType.m68k_cfm.make.txt @@ -0,0 +1,212 @@ +# File: FreeType.m68k_cfm.make +# Target: FreeType.m68k_cfm +# Created: Thursday, October 27, 2005 09:23:25 PM + + +MAKEFILE = FreeType.m68k_cfm.make +\xA5MondoBuild\xA5 = {MAKEFILE} # Make blank to avoid rebuilds when makefile is modified + +ObjDir = :objs: +Includes = \xB6 + -ansi strict \xB6 + -includes unix \xB6 + -i :include: \xB6 + -i :src: \xB6 + -i :include:freetype:config: + +Sym-68K = -sym off + +COptions = \xB6 + -d FT_MACINTOSH=1 \xB6 + -d HAVE_FSSPEC=1 \xB6 + -d HAVE_FSREF=0 \xB6 + -d HAVE_QUICKDRAW_TOOLBOX=1 \xB6 + -d HAVE_QUICKDRAW_CARBON=0 \xB6 + -d HAVE_ATS=0 \xB6 + -d FT2_BUILD_LIBRARY \xB6 + -d FT_CONFIG_CONFIG_H="" \xB6 + -d FT_CONFIG_MODULES_H="" \xB6 + {Includes} {Sym-68K} -model cfmseg + + +### Source Files ### + +SrcFiles = \xB6 + :src:autofit:autofit.c \xB6 + :builds:mac:ftbase.c \xB6 + :src:base:ftbbox.c \xB6 + :src:base:ftbdf.c \xB6 + :src:base:ftbitmap.c \xB6 + :src:base:ftdebug.c \xB6 + :src:base:ftfstype.c \xB6 + :src:base:ftglyph.c \xB6 + :src:base:ftgxval.c \xB6 + :src:base:ftinit.c \xB6 + :src:base:ftmm.c \xB6 + :src:base:ftotval.c \xB6 + :src:base:ftpfr.c \xB6 + :src:base:ftstroke.c \xB6 + :src:base:ftsynth.c \xB6 + :src:base:ftsystem.c \xB6 + :src:base:fttype1.c \xB6 + :src:base:ftwinfnt.c \xB6 + :src:base:ftxf86.c \xB6 + :src:cache:ftcache.c \xB6 + :src:bdf:bdf.c \xB6 + :src:cff:cff.c \xB6 + :src:cid:type1cid.c \xB6 +# :src:gxvalid:gxvalid.c \xB6 + :src:gzip:ftgzip.c \xB6 + :src:bzip2:ftbzip2.c \xB6 + :src:lzw:ftlzw.c \xB6 + :src:otvalid:otvalid.c \xB6 + :src:pcf:pcf.c \xB6 + :src:pfr:pfr.c \xB6 + :src:psaux:psaux.c \xB6 + :src:pshinter:pshinter.c \xB6 + :src:psnames:psmodule.c \xB6 + :src:raster:raster.c \xB6 + :src:sfnt:sfnt.c \xB6 + :src:smooth:smooth.c \xB6 + :src:truetype:truetype.c \xB6 + :src:type1:type1.c \xB6 + :src:type42:type42.c \xB6 + :src:winfonts:winfnt.c + + +### Object Files ### + +ObjFiles-68K = \xB6 + "{ObjDir}autofit.c.o" \xB6 + "{ObjDir}ftbase.c.o" \xB6 + "{ObjDir}ftbbox.c.o" \xB6 + "{ObjDir}ftbdf.c.o" \xB6 + "{ObjDir}ftbitmap.c.o" \xB6 + "{ObjDir}ftdebug.c.o" \xB6 + "{ObjDir}ftfstype.c.o" \xB6 + "{ObjDir}ftglyph.c.o" \xB6 + "{ObjDir}ftgxval.c.o" \xB6 + "{ObjDir}ftinit.c.o" \xB6 + "{ObjDir}ftmm.c.o" \xB6 + "{ObjDir}ftotval.c.o" \xB6 + "{ObjDir}ftpfr.c.o" \xB6 + "{ObjDir}ftstroke.c.o" \xB6 + "{ObjDir}ftsynth.c.o" \xB6 + "{ObjDir}ftsystem.c.o" \xB6 + "{ObjDir}fttype1.c.o" \xB6 + "{ObjDir}ftwinfnt.c.o" \xB6 + "{ObjDir}ftxf86.c.o" \xB6 + "{ObjDir}ftcache.c.o" \xB6 + "{ObjDir}bdf.c.o" \xB6 + "{ObjDir}cff.c.o" \xB6 + "{ObjDir}type1cid.c.o" \xB6 +# "{ObjDir}gxvalid.c.o" \xB6 + "{ObjDir}ftgzip.c.o" \xB6 + "{ObjDir}ftbzip2.c.o" \xB6 + "{ObjDir}ftlzw.c.o" \xB6 + "{ObjDir}otvalid.c.o" \xB6 + "{ObjDir}pcf.c.o" \xB6 + "{ObjDir}pfr.c.o" \xB6 + "{ObjDir}psaux.c.o" \xB6 + "{ObjDir}pshinter.c.o" \xB6 + "{ObjDir}psmodule.c.o" \xB6 + "{ObjDir}raster.c.o" \xB6 + "{ObjDir}sfnt.c.o" \xB6 + "{ObjDir}smooth.c.o" \xB6 + "{ObjDir}truetype.c.o" \xB6 + "{ObjDir}type1.c.o" \xB6 + "{ObjDir}type42.c.o" \xB6 + "{ObjDir}winfnt.c.o" + + +### Libraries ### + +LibFiles-68K = + + +### Default Rules ### + +.c.o \xC4 .c {\xA5MondoBuild\xA5} + {C} {depDir}{default}.c -o {targDir}{default}.c.o {COptions} + + +### Build Rules ### + +:builds:mac:ftbase.c \xC4\xC4 :src:base:ftbase.c + Duplicate :src:base:ftbase.c :builds:mac:ftbase.c + +"{ObjDir}ftbase.c.o" \xC4\xC4 :builds:mac:ftbase.c + {C} :builds:mac:ftbase.c -o "{ObjDir}ftbase.c.o" \xB6 + -i :builds:mac: \xB6 + -i :src:base: \xB6 + {COptions} + +FreeType.m68k_cfm \xC4\xC4 FreeType.m68k_cfm.o + +FreeType.m68k_cfm.o \xC4\xC4 {ObjFiles-68K} {LibFiles-68K} {\xA5MondoBuild\xA5} + Lib \xB6 + -o {Targ} \xB6 + {ObjFiles-68K} \xB6 + {LibFiles-68K} \xB6 + {Sym-68K} \xB6 + -mf -d + + + +### Required Dependencies ### + +"{ObjDir}autofit.c.o" \xC4 :src:autofit:autofit.c +# "{ObjDir}ftbase.c.o" \xC4 :src:base:ftbase.c +"{ObjDir}ftbbox.c.o" \xC4 :src:base:ftbbox.c +"{ObjDir}ftbdf.c.o" \xC4 :src:base:ftbdf.c +"{ObjDir}ftbitmap.c.o" \xC4 :src:base:ftbitmap.c +"{ObjDir}ftdebug.c.o" \xC4 :src:base:ftdebug.c +"{ObjDir}ftfstype.c.o" \xC4 :src:base:ftfstype.c +"{ObjDir}ftglyph.c.o" \xC4 :src:base:ftglyph.c +"{ObjDir}ftgxval.c.o" \xC4 :src:base:ftgxval.c +"{ObjDir}ftinit.c.o" \xC4 :src:base:ftinit.c +"{ObjDir}ftmm.c.o" \xC4 :src:base:ftmm.c +"{ObjDir}ftotval.c.o" \xC4 :src:base:ftotval.c +"{ObjDir}ftpfr.c.o" \xC4 :src:base:ftpfr.c +"{ObjDir}ftstroke.c.o" \xC4 :src:base:ftstroke.c +"{ObjDir}ftsynth.c.o" \xC4 :src:base:ftsynth.c +"{ObjDir}ftsystem.c.o" \xC4 :src:base:ftsystem.c +"{ObjDir}fttype1.c.o" \xC4 :src:base:fttype1.c +"{ObjDir}ftwinfnt.c.o" \xC4 :src:base:ftwinfnt.c +"{ObjDir}ftxf86.c.o" \xC4 :src:base:ftxf86.c +"{ObjDir}ftcache.c.o" \xC4 :src:cache:ftcache.c +"{ObjDir}bdf.c.o" \xC4 :src:bdf:bdf.c +"{ObjDir}cff.c.o" \xC4 :src:cff:cff.c +"{ObjDir}type1cid.c.o" \xC4 :src:cid:type1cid.c +# "{ObjDir}gxvalid.c.o" \xC4 :src:gxvalid:gxvalid.c +"{ObjDir}ftgzip.c.o" \xC4 :src:gzip:ftgzip.c +"{ObjDir}ftbzip2.c.o" \xC4 :src:bzip2:ftbzip2.c +"{ObjDir}ftlzw.c.o" \xC4 :src:lzw:ftlzw.c +"{ObjDir}otvalid.c.o" \xC4 :src:otvalid:otvalid.c +"{ObjDir}pcf.c.o" \xC4 :src:pcf:pcf.c +"{ObjDir}pfr.c.o" \xC4 :src:pfr:pfr.c +"{ObjDir}psaux.c.o" \xC4 :src:psaux:psaux.c +"{ObjDir}pshinter.c.o" \xC4 :src:pshinter:pshinter.c +"{ObjDir}psmodule.c.o" \xC4 :src:psnames:psmodule.c +"{ObjDir}raster.c.o" \xC4 :src:raster:raster.c +"{ObjDir}sfnt.c.o" \xC4 :src:sfnt:sfnt.c +"{ObjDir}smooth.c.o" \xC4 :src:smooth:smooth.c +"{ObjDir}truetype.c.o" \xC4 :src:truetype:truetype.c +"{ObjDir}type1.c.o" \xC4 :src:type1:type1.c +"{ObjDir}type42.c.o" \xC4 :src:type42:type42.c +"{ObjDir}winfnt.c.o" \xC4 :src:winfonts:winfnt.c + + +### Optional Dependencies ### +### Build this target to generate "include file" dependencies. ### + +Dependencies \xC4 $OutOfDate + MakeDepend \xB6 + -append {MAKEFILE} \xB6 + -ignore "{CIncludes}" \xB6 + -objdir "{ObjDir}" \xB6 + -objext .o \xB6 + {Includes} \xB6 + {SrcFiles} + + diff --git a/builds/mac/FreeType.m68k_far.make.txt b/builds/mac/FreeType.m68k_far.make.txt new file mode 100644 index 0000000..ebf5a1b --- /dev/null +++ b/builds/mac/FreeType.m68k_far.make.txt @@ -0,0 +1,211 @@ +# File: FreeType.m68k_far.make +# Target: FreeType.m68k_far +# Created: Tuesday, October 25, 2005 03:34:05 PM + + +MAKEFILE = FreeType.m68k_far.make +\xA5MondoBuild\xA5 = {MAKEFILE} # Make blank to avoid rebuilds when makefile is modified + +ObjDir = :objs: +Includes = \xB6 + -includes unix \xB6 + -i :include: \xB6 + -i :src: \xB6 + -i :include:freetype:config: + +Sym-68K = -sym off + +COptions = \xB6 + -d FT_MACINTOSH=1 \xB6 + -d HAVE_FSSPEC=1 \xB6 + -d HAVE_FSREF=0 \xB6 + -d HAVE_QUICKDRAW_TOOLBOX=1 \xB6 + -d HAVE_QUICKDRAW_CARBON=0 \xB6 + -d HAVE_ATS=0 \xB6 + -d FT2_BUILD_LIBRARY \xB6 + -d FT_CONFIG_CONFIG_H="" \xB6 + -d FT_CONFIG_MODULES_H="" \xB6 + {Includes} {Sym-68K} -model far + + +### Source Files ### + +SrcFiles = \xB6 + :src:autofit:autofit.c \xB6 + :builds:mac:ftbase.c \xB6 + :src:base:ftbbox.c \xB6 + :src:base:ftbdf.c \xB6 + :src:base:ftbitmap.c \xB6 + :src:base:ftdebug.c \xB6 + :src:base:ftfstype.c \xB6 + :src:base:ftglyph.c \xB6 + :src:base:ftgxval.c \xB6 + :src:base:ftinit.c \xB6 + :src:base:ftmm.c \xB6 + :src:base:ftotval.c \xB6 + :src:base:ftpfr.c \xB6 + :src:base:ftstroke.c \xB6 + :src:base:ftsynth.c \xB6 + :src:base:ftsystem.c \xB6 + :src:base:fttype1.c \xB6 + :src:base:ftwinfnt.c \xB6 + :src:base:ftxf86.c \xB6 + :src:cache:ftcache.c \xB6 + :src:bdf:bdf.c \xB6 + :src:cff:cff.c \xB6 + :src:cid:type1cid.c \xB6 + :src:gxvalid:gxvalid.c \xB6 + :src:gzip:ftgzip.c \xB6 + :src:bzip2:ftbzip2.c \xB6 + :src:lzw:ftlzw.c \xB6 + :src:otvalid:otvalid.c \xB6 + :src:pcf:pcf.c \xB6 + :src:pfr:pfr.c \xB6 + :src:psaux:psaux.c \xB6 + :src:pshinter:pshinter.c \xB6 + :src:psnames:psmodule.c \xB6 + :src:raster:raster.c \xB6 + :src:sfnt:sfnt.c \xB6 + :src:smooth:smooth.c \xB6 + :src:truetype:truetype.c \xB6 + :src:type1:type1.c \xB6 + :src:type42:type42.c \xB6 + :src:winfonts:winfnt.c + + +### Object Files ### + +ObjFiles-68K = \xB6 + "{ObjDir}autofit.c.o" \xB6 + "{ObjDir}ftbase.c.o" \xB6 + "{ObjDir}ftbbox.c.o" \xB6 + "{ObjDir}ftbdf.c.o" \xB6 + "{ObjDir}ftbitmap.c.o" \xB6 + "{ObjDir}ftdebug.c.o" \xB6 + "{ObjDir}ftfstype.c.o" \xB6 + "{ObjDir}ftglyph.c.o" \xB6 + "{ObjDir}ftgxval.c.o" \xB6 + "{ObjDir}ftinit.c.o" \xB6 + "{ObjDir}ftmm.c.o" \xB6 + "{ObjDir}ftotval.c.o" \xB6 + "{ObjDir}ftpfr.c.o" \xB6 + "{ObjDir}ftstroke.c.o" \xB6 + "{ObjDir}ftsynth.c.o" \xB6 + "{ObjDir}ftsystem.c.o" \xB6 + "{ObjDir}fttype1.c.o" \xB6 + "{ObjDir}ftwinfnt.c.o" \xB6 + "{ObjDir}ftxf86.c.o" \xB6 + "{ObjDir}ftcache.c.o" \xB6 + "{ObjDir}bdf.c.o" \xB6 + "{ObjDir}cff.c.o" \xB6 + "{ObjDir}type1cid.c.o" \xB6 + "{ObjDir}gxvalid.c.o" \xB6 + "{ObjDir}ftgzip.c.o" \xB6 + "{ObjDir}ftbzip2.c.o" \xB6 + "{ObjDir}ftlzw.c.o" \xB6 + "{ObjDir}otvalid.c.o" \xB6 + "{ObjDir}pcf.c.o" \xB6 + "{ObjDir}pfr.c.o" \xB6 + "{ObjDir}psaux.c.o" \xB6 + "{ObjDir}pshinter.c.o" \xB6 + "{ObjDir}psmodule.c.o" \xB6 + "{ObjDir}raster.c.o" \xB6 + "{ObjDir}sfnt.c.o" \xB6 + "{ObjDir}smooth.c.o" \xB6 + "{ObjDir}truetype.c.o" \xB6 + "{ObjDir}type1.c.o" \xB6 + "{ObjDir}type42.c.o" \xB6 + "{ObjDir}winfnt.c.o" + + +### Libraries ### + +LibFiles-68K = + + +### Default Rules ### + +.c.o \xC4 .c {\xA5MondoBuild\xA5} + {C} {depDir}{default}.c -o {targDir}{default}.c.o {COptions} \xB6 + -ansi strict + +### Build Rules ### + +:builds:mac:ftbase.c \xC4\xC4 :src:base:ftbase.c + Duplicate :src:base:ftbase.c :builds:mac:ftbase.c + +"{ObjDir}ftbase.c.o" \xC4\xC4 :builds:mac:ftbase.c + {C} :builds:mac:ftbase.c -o "{ObjDir}ftbase.c.o" \xB6 + -i :builds:mac: \xB6 + -i :src:base: \xB6 + {COptions} + +FreeType.m68k_far \xC4\xC4 FreeType.m68k_far.o + +FreeType.m68k_far.o \xC4\xC4 {ObjFiles-68K} {LibFiles-68K} {\xA5MondoBuild\xA5} + Lib \xB6 + -o {Targ} \xB6 + {ObjFiles-68K} \xB6 + {LibFiles-68K} \xB6 + {Sym-68K} \xB6 + -mf -d + + + +### Required Dependencies ### + +"{ObjDir}autofit.c.o" \xC4 :src:autofit:autofit.c +# "{ObjDir}ftbase.c.o" \xC4 :src:base:ftbase.c +"{ObjDir}ftbbox.c.o" \xC4 :src:base:ftbbox.c +"{ObjDir}ftbdf.c.o" \xC4 :src:base:ftbdf.c +"{ObjDir}ftbitmap.c.o" \xC4 :src:base:ftbitmap.c +"{ObjDir}ftdebug.c.o" \xC4 :src:base:ftdebug.c +"{ObjDir}ftfstype.c.o" \xC4 :src:base:ftfstype.c +"{ObjDir}ftglyph.c.o" \xC4 :src:base:ftglyph.c +"{ObjDir}ftgxval.c.o" \xC4 :src:base:ftgxval.c +"{ObjDir}ftinit.c.o" \xC4 :src:base:ftinit.c +"{ObjDir}ftmm.c.o" \xC4 :src:base:ftmm.c +"{ObjDir}ftotval.c.o" \xC4 :src:base:ftotval.c +"{ObjDir}ftpfr.c.o" \xC4 :src:base:ftpfr.c +"{ObjDir}ftstroke.c.o" \xC4 :src:base:ftstroke.c +"{ObjDir}ftsynth.c.o" \xC4 :src:base:ftsynth.c +"{ObjDir}ftsystem.c.o" \xC4 :src:base:ftsystem.c +"{ObjDir}fttype1.c.o" \xC4 :src:base:fttype1.c +"{ObjDir}ftwinfnt.c.o" \xC4 :src:base:ftwinfnt.c +"{ObjDir}ftxf86.c.o" \xC4 :src:base:ftxf86.c +"{ObjDir}ftcache.c.o" \xC4 :src:cache:ftcache.c +"{ObjDir}bdf.c.o" \xC4 :src:bdf:bdf.c +"{ObjDir}cff.c.o" \xC4 :src:cff:cff.c +"{ObjDir}type1cid.c.o" \xC4 :src:cid:type1cid.c +"{ObjDir}gxvalid.c.o" \xC4 :src:gxvalid:gxvalid.c +"{ObjDir}ftgzip.c.o" \xC4 :src:gzip:ftgzip.c +"{ObjDir}ftbzip2.c.o" \xC4 :src:bzip2:ftbzip2.c +"{ObjDir}ftlzw.c.o" \xC4 :src:lzw:ftlzw.c +"{ObjDir}otvalid.c.o" \xC4 :src:otvalid:otvalid.c +"{ObjDir}pcf.c.o" \xC4 :src:pcf:pcf.c +"{ObjDir}pfr.c.o" \xC4 :src:pfr:pfr.c +"{ObjDir}psaux.c.o" \xC4 :src:psaux:psaux.c +"{ObjDir}pshinter.c.o" \xC4 :src:pshinter:pshinter.c +"{ObjDir}psmodule.c.o" \xC4 :src:psnames:psmodule.c +"{ObjDir}raster.c.o" \xC4 :src:raster:raster.c +"{ObjDir}sfnt.c.o" \xC4 :src:sfnt:sfnt.c +"{ObjDir}smooth.c.o" \xC4 :src:smooth:smooth.c +"{ObjDir}truetype.c.o" \xC4 :src:truetype:truetype.c +"{ObjDir}type1.c.o" \xC4 :src:type1:type1.c +"{ObjDir}type42.c.o" \xC4 :src:type42:type42.c +"{ObjDir}winfnt.c.o" \xC4 :src:winfonts:winfnt.c + + +### Optional Dependencies ### +### Build this target to generate "include file" dependencies. ### + +Dependencies \xC4 $OutOfDate + MakeDepend \xB6 + -append {MAKEFILE} \xB6 + -ignore "{CIncludes}" \xB6 + -objdir "{ObjDir}" \xB6 + -objext .o \xB6 + {Includes} \xB6 + {SrcFiles} + + diff --git a/builds/mac/FreeType.ppc_carbon.make.txt b/builds/mac/FreeType.ppc_carbon.make.txt new file mode 100644 index 0000000..2926413 --- /dev/null +++ b/builds/mac/FreeType.ppc_carbon.make.txt @@ -0,0 +1,215 @@ +# File: FreeType.ppc_carbon.make +# Target: FreeType.ppc_carbon +# Created: Friday, October 28, 2005 03:40:06 PM + + +MAKEFILE = FreeType.ppc_carbon.make +\xA5MondoBuild\xA5 = {MAKEFILE} # Make blank to avoid rebuilds when makefile is modified + +ObjDir = :objs: +Includes = \xB6 + -ansi strict \xB6 + -includes unix \xB6 + -i :include: \xB6 + -i :src: \xB6 + -i :include:freetype:config: + +Sym-PPC = -sym off + +PPCCOptions = \xB6 + -d FT_MACINTOSH=1 \xB6 + -d HAVE_FSSPEC=1 \xB6 + -d HAVE_FSREF=1 \xB6 + -d HAVE_QUICKDRAW_TOOLBOX=1 \xB6 + -d HAVE_QUICKDRAW_CARBON=1 \xB6 + -d HAVE_ATS=0 \xB6 + -d FT2_BUILD_LIBRARY \xB6 + -d FT_CONFIG_CONFIG_H="" \xB6 + -d FT_CONFIG_MODULES_H="" \xB6 + {Includes} {Sym-PPC} -d TARGET_API_MAC_CARBON=1 + + +### Source Files ### + +SrcFiles = \xB6 + :src:autofit:autofit.c \xB6 + :builds:mac:ftbase.c \xB6 + :src:base:ftbbox.c \xB6 + :src:base:ftbdf.c \xB6 + :src:base:ftbitmap.c \xB6 + :src:base:ftdebug.c \xB6 + :src:base:ftfstype.c \xB6 + :src:base:ftglyph.c \xB6 + :src:base:ftgxval.c \xB6 + :src:base:ftinit.c \xB6 + :src:base:ftmm.c \xB6 + :src:base:ftotval.c \xB6 + :src:base:ftpfr.c \xB6 + :src:base:ftstroke.c \xB6 + :src:base:ftsynth.c \xB6 + :src:base:ftsystem.c \xB6 + :src:base:fttype1.c \xB6 + :src:base:ftwinfnt.c \xB6 + :src:base:ftxf86.c \xB6 + :src:cache:ftcache.c \xB6 + :src:bdf:bdf.c \xB6 + :src:cff:cff.c \xB6 + :src:cid:type1cid.c \xB6 + :src:gxvalid:gxvalid.c \xB6 + :src:gzip:ftgzip.c \xB6 + :src:bzip2:ftbzip2.c \xB6 + :src:lzw:ftlzw.c \xB6 + :src:otvalid:otvalid.c \xB6 + :src:pcf:pcf.c \xB6 + :src:pfr:pfr.c \xB6 + :src:psaux:psaux.c \xB6 + :src:pshinter:pshinter.c \xB6 + :src:psnames:psmodule.c \xB6 + :src:raster:raster.c \xB6 + :src:sfnt:sfnt.c \xB6 + :src:smooth:smooth.c \xB6 + :src:truetype:truetype.c \xB6 + :src:type1:type1.c \xB6 + :src:type42:type42.c \xB6 + :src:winfonts:winfnt.c + + +### Object Files ### + +ObjFiles-PPC = \xB6 + "{ObjDir}autofit.c.x" \xB6 + "{ObjDir}ftbase.c.x" \xB6 + "{ObjDir}ftbbox.c.x" \xB6 + "{ObjDir}ftbdf.c.x" \xB6 + "{ObjDir}ftbitmap.c.x" \xB6 + "{ObjDir}ftdebug.c.x" \xB6 + "{ObjDir}ftfstype.c.x" \xB6 + "{ObjDir}ftglyph.c.x" \xB6 + "{ObjDir}ftgxval.c.x" \xB6 + "{ObjDir}ftinit.c.x" \xB6 + "{ObjDir}ftmm.c.x" \xB6 + "{ObjDir}ftotval.c.x" \xB6 + "{ObjDir}ftpfr.c.x" \xB6 + "{ObjDir}ftstroke.c.x" \xB6 + "{ObjDir}ftsynth.c.x" \xB6 + "{ObjDir}ftsystem.c.x" \xB6 + "{ObjDir}fttype1.c.x" \xB6 + "{ObjDir}ftwinfnt.c.x" \xB6 + "{ObjDir}ftxf86.c.x" \xB6 + "{ObjDir}ftcache.c.x" \xB6 + "{ObjDir}bdf.c.x" \xB6 + "{ObjDir}cff.c.x" \xB6 + "{ObjDir}type1cid.c.x" \xB6 + "{ObjDir}gxvalid.c.x" \xB6 + "{ObjDir}ftgzip.c.x" \xB6 + "{ObjDir}ftbzip2.c.x" \xB6 + "{ObjDir}ftlzw.c.x" \xB6 + "{ObjDir}otvalid.c.x" \xB6 + "{ObjDir}pcf.c.x" \xB6 + "{ObjDir}pfr.c.x" \xB6 + "{ObjDir}psaux.c.x" \xB6 + "{ObjDir}pshinter.c.x" \xB6 + "{ObjDir}psmodule.c.x" \xB6 + "{ObjDir}raster.c.x" \xB6 + "{ObjDir}sfnt.c.x" \xB6 + "{ObjDir}smooth.c.x" \xB6 + "{ObjDir}truetype.c.x" \xB6 + "{ObjDir}type1.c.x" \xB6 + "{ObjDir}type42.c.x" \xB6 + "{ObjDir}winfnt.c.x" + + +### Libraries ### + +LibFiles-PPC = + + +### Default Rules ### + +.c.x \xC4 .c {\xA5MondoBuild\xA5} + {PPCC} {depDir}{default}.c -o {targDir}{default}.c.x {PPCCOptions} + + +### Build Rules ### + +:builds:mac:ftbase.c \xC4\xC4 :src:base:ftbase.c + Duplicate :src:base:ftbase.c :builds:mac:ftbase.c + +"{ObjDir}ftbase.c.x" \xC4\xC4 :builds:mac:ftbase.c + {PPCC} :builds:mac:ftbase.c -o {ObjDir}ftbase.c.x \xB6 + -i :builds:mac: \xB6 + -i :src:base: \xB6 + {PPCCOptions} + +FreeType.ppc_carbon \xC4\xC4 FreeType.ppc_carbon.o + +FreeType.ppc_carbon.o \xC4\xC4 {ObjFiles-PPC} {LibFiles-PPC} {\xA5MondoBuild\xA5} + PPCLink \xB6 + -o {Targ} \xB6 + {ObjFiles-PPC} \xB6 + {LibFiles-PPC} \xB6 + {Sym-PPC} \xB6 + -mf -d \xB6 + -t 'XCOF' \xB6 + -c 'MPS ' \xB6 + -xm l + + + +### Required Dependencies ### + +"{ObjDir}autofit.c.x" \xC4 :src:autofit:autofit.c +# "{ObjDir}ftbase.c.x" \xC4 :builds:mac:ftbase.c +"{ObjDir}ftbbox.c.x" \xC4 :src:base:ftbbox.c +"{ObjDir}ftbdf.c.x" \xC4 :src:base:ftbdf.c +"{ObjDir}ftbitmap.c.x" \xC4 :src:base:ftbitmap.c +"{ObjDir}ftdebug.c.x" \xC4 :src:base:ftdebug.c +"{ObjDir}ftfstype.c.x" \xC4 :src:base:ftfstype.c +"{ObjDir}ftglyph.c.x" \xC4 :src:base:ftglyph.c +"{ObjDir}ftgxval.c.x" \xC4 :src:base:ftgxval.c +"{ObjDir}ftinit.c.x" \xC4 :src:base:ftinit.c +"{ObjDir}ftmm.c.x" \xC4 :src:base:ftmm.c +"{ObjDir}ftotval.c.x" \xC4 :src:base:ftotval.c +"{ObjDir}ftpfr.c.x" \xC4 :src:base:ftpfr.c +"{ObjDir}ftstroke.c.x" \xC4 :src:base:ftstroke.c +"{ObjDir}ftsynth.c.x" \xC4 :src:base:ftsynth.c +"{ObjDir}ftsystem.c.x" \xC4 :src:base:ftsystem.c +"{ObjDir}fttype1.c.x" \xC4 :src:base:fttype1.c +"{ObjDir}ftwinfnt.c.x" \xC4 :src:base:ftwinfnt.c +"{ObjDir}ftxf86.c.x" \xC4 :src:base:ftxf86.c +"{ObjDir}ftcache.c.x" \xC4 :src:cache:ftcache.c +"{ObjDir}bdf.c.x" \xC4 :src:bdf:bdf.c +"{ObjDir}cff.c.x" \xC4 :src:cff:cff.c +"{ObjDir}type1cid.c.x" \xC4 :src:cid:type1cid.c +"{ObjDir}gxvalid.c.x" \xC4 :src:gxvalid:gxvalid.c +"{ObjDir}ftgzip.c.x" \xC4 :src:gzip:ftgzip.c +"{ObjDir}ftbzip2.c.x" \xC4 :src:bzip2:ftbzip2.c +"{ObjDir}ftlzw.c.x" \xC4 :src:lzw:ftlzw.c +"{ObjDir}otvalid.c.x" \xC4 :src:otvalid:otvalid.c +"{ObjDir}pcf.c.x" \xC4 :src:pcf:pcf.c +"{ObjDir}pfr.c.x" \xC4 :src:pfr:pfr.c +"{ObjDir}psaux.c.x" \xC4 :src:psaux:psaux.c +"{ObjDir}pshinter.c.x" \xC4 :src:pshinter:pshinter.c +"{ObjDir}psmodule.c.x" \xC4 :src:psnames:psmodule.c +"{ObjDir}raster.c.x" \xC4 :src:raster:raster.c +"{ObjDir}sfnt.c.x" \xC4 :src:sfnt:sfnt.c +"{ObjDir}smooth.c.x" \xC4 :src:smooth:smooth.c +"{ObjDir}truetype.c.x" \xC4 :src:truetype:truetype.c +"{ObjDir}type1.c.x" \xC4 :src:type1:type1.c +"{ObjDir}type42.c.x" \xC4 :src:type42:type42.c +"{ObjDir}winfnt.c.x" \xC4 :src:winfonts:winfnt.c + + +### Optional Dependencies ### +### Build this target to generate "include file" dependencies. ### + +Dependencies \xC4 $OutOfDate + MakeDepend \xB6 + -append {MAKEFILE} \xB6 + -ignore "{CIncludes}" \xB6 + -objdir "{ObjDir}" \xB6 + -objext .x \xB6 + {Includes} \xB6 + {SrcFiles} + + diff --git a/builds/mac/FreeType.ppc_classic.make.txt b/builds/mac/FreeType.ppc_classic.make.txt new file mode 100644 index 0000000..377de9a --- /dev/null +++ b/builds/mac/FreeType.ppc_classic.make.txt @@ -0,0 +1,216 @@ +# File: FreeType.ppc_classic.make +# Target: FreeType.ppc_classic +# Created: Thursday, October 27, 2005 07:42:43 PM + + +MAKEFILE = FreeType.ppc_classic.make +\xA5MondoBuild\xA5 = {MAKEFILE} # Make blank to avoid rebuilds when makefile is modified + +ObjDir = :objs: +Includes = \xB6 + -ansi strict \xB6 + -includes unix \xB6 + -i :include: \xB6 + -i :src: \xB6 + -i :include:freetype:config: + +Sym-PPC = -sym off + +PPCCOptions = \xB6 + -d FT_MACINTOSH=1 \xB6 + -d HAVE_FSSPEC=1 \xB6 + -d HAVE_FSREF=0 \xB6 + -d HAVE_QUICKDRAW_TOOLBOX=1 \xB6 + -d HAVE_QUICKDRAW_CARBON=0 \xB6 + -d HAVE_ATS=0 \xB6 + -d FT2_BUILD_LIBRARY \xB6 + -d FT_CONFIG_CONFIG_H="" \xB6 + -d FT_CONFIG_MODULES_H="" \xB6 + {Includes} {Sym-PPC} + + +### Source Files ### + +SrcFiles = \xB6 + :src:autofit:autofit.c \xB6 + :builds:mac:ftbase.c \xB6 + :src:base:ftbbox.c \xB6 + :src:base:ftbdf.c \xB6 + :src:base:ftbitmap.c \xB6 + :src:base:ftdebug.c \xB6 + :src:base:ftfstype.c \xB6 + :src:base:ftglyph.c \xB6 + :src:base:ftgxval.c \xB6 + :src:base:ftinit.c \xB6 + :src:base:ftmm.c \xB6 + :src:base:ftotval.c \xB6 + :src:base:ftpfr.c \xB6 + :src:base:ftstroke.c \xB6 + :src:base:ftsynth.c \xB6 + :src:base:ftsystem.c \xB6 + :src:base:fttype1.c \xB6 + :src:base:ftwinfnt.c \xB6 + :src:base:ftxf86.c \xB6 + :src:cache:ftcache.c \xB6 + :src:bdf:bdf.c \xB6 + :src:cff:cff.c \xB6 + :src:cid:type1cid.c \xB6 + :src:gxvalid:gxvalid.c \xB6 + :src:gzip:ftgzip.c \xB6 + :src:bzip2:ftbzip2.c \xB6 + :src:lzw:ftlzw.c \xB6 + :src:otvalid:otvalid.c \xB6 + :src:pcf:pcf.c \xB6 + :src:pfr:pfr.c \xB6 + :src:psaux:psaux.c \xB6 + :src:pshinter:pshinter.c \xB6 + :src:psnames:psmodule.c \xB6 + :src:raster:raster.c \xB6 + :src:sfnt:sfnt.c \xB6 + :src:smooth:smooth.c \xB6 + :src:truetype:truetype.c \xB6 + :src:type1:type1.c \xB6 + :src:type42:type42.c \xB6 + :src:winfonts:winfnt.c + + +### Object Files ### + +ObjFiles-PPC = \xB6 + "{ObjDir}autofit.c.x" \xB6 + "{ObjDir}ftbase.c.x" \xB6 + "{ObjDir}ftbbox.c.x" \xB6 + "{ObjDir}ftbdf.c.x" \xB6 + "{ObjDir}ftbitmap.c.x" \xB6 + "{ObjDir}ftdebug.c.x" \xB6 + "{ObjDir}ftfstype.c.x" \xB6 + "{ObjDir}ftglyph.c.x" \xB6 + "{ObjDir}ftgxval.c.x" \xB6 + "{ObjDir}ftinit.c.x" \xB6 + "{ObjDir}ftmm.c.x" \xB6 + "{ObjDir}ftotval.c.x" \xB6 + "{ObjDir}ftpfr.c.x" \xB6 + "{ObjDir}ftstroke.c.x" \xB6 + "{ObjDir}ftsynth.c.x" \xB6 + "{ObjDir}ftsystem.c.x" \xB6 + "{ObjDir}fttype1.c.x" \xB6 + "{ObjDir}ftwinfnt.c.x" \xB6 + "{ObjDir}ftxf86.c.x" \xB6 + "{ObjDir}ftcache.c.x" \xB6 + "{ObjDir}bdf.c.x" \xB6 + "{ObjDir}cff.c.x" \xB6 + "{ObjDir}type1cid.c.x" \xB6 + "{ObjDir}gxvalid.c.x" \xB6 + "{ObjDir}ftgzip.c.x" \xB6 + "{ObjDir}ftbzip2.c.x" \xB6 + "{ObjDir}ftlzw.c.x" \xB6 + "{ObjDir}otvalid.c.x" \xB6 + "{ObjDir}pcf.c.x" \xB6 + "{ObjDir}pfr.c.x" \xB6 + "{ObjDir}psaux.c.x" \xB6 + "{ObjDir}pshinter.c.x" \xB6 + "{ObjDir}psmodule.c.x" \xB6 + "{ObjDir}raster.c.x" \xB6 + "{ObjDir}sfnt.c.x" \xB6 + "{ObjDir}smooth.c.x" \xB6 + "{ObjDir}truetype.c.x" \xB6 + "{ObjDir}type1.c.x" \xB6 + "{ObjDir}type42.c.x" \xB6 + "{ObjDir}winfnt.c.x" + + +### Libraries ### + +LibFiles-PPC = + + +### Default Rules ### + +.c.x \xC4 .c {\xA5MondoBuild\xA5} + {PPCC} {depDir}{default}.c -o {targDir}{default}.c.x {PPCCOptions} + + +### Build Rules ### + +:builds:mac:ftbase.c \xC4\xC4 :src:base:ftbase.c + Duplicate :src:base:ftbase.c :builds:mac:ftbase.c + +"{ObjDir}ftbase.c.x" \xC4\xC4 :builds:mac:ftbase.c + {PPCC} :builds:mac:ftbase.c -o "{ObjDir}ftbase.c.x" \xB6 + -i :builds:mac: \xB6 + -i :src:base: \xB6 + {PPCCOptions} + +FreeType.ppc_classic \xC4\xC4 FreeType.ppc_classic.o + +FreeType.ppc_classic.o \xC4\xC4 {ObjFiles-PPC} {LibFiles-PPC} {\xA5MondoBuild\xA5} + PPCLink \xB6 + -o {Targ} \xB6 + {ObjFiles-PPC} \xB6 + {LibFiles-PPC} \xB6 + {Sym-PPC} \xB6 + -mf -d \xB6 + -t 'XCOF' \xB6 + -c 'MPS ' \xB6 + -xm l + + + +### Required Dependencies ### + +"{ObjDir}autofit.c.x" \xC4 :src:autofit:autofit.c +# "{ObjDir}ftbase.c.x" \xC4 :builds:mac:ftbase.c +"{ObjDir}ftbbox.c.x" \xC4 :src:base:ftbbox.c +"{ObjDir}ftbdf.c.x" \xC4 :src:base:ftbdf.c +"{ObjDir}ftbitmap.c.x" \xC4 :src:base:ftbitmap.c +"{ObjDir}ftdebug.c.x" \xC4 :src:base:ftdebug.c +"{ObjDir}ftfstype.c.x" \xC4 :src:base:ftfstype.c +"{ObjDir}ftglyph.c.x" \xC4 :src:base:ftglyph.c +"{ObjDir}ftgxval.c.x" \xC4 :src:base:ftgxval.c +"{ObjDir}ftinit.c.x" \xC4 :src:base:ftinit.c +"{ObjDir}ftmm.c.x" \xC4 :src:base:ftmm.c +"{ObjDir}ftotval.c.x" \xC4 :src:base:ftotval.c +"{ObjDir}ftpfr.c.x" \xC4 :src:base:ftpfr.c +"{ObjDir}ftstroke.c.x" \xC4 :src:base:ftstroke.c +"{ObjDir}ftsynth.c.x" \xC4 :src:base:ftsynth.c +"{ObjDir}ftsystem.c.x" \xC4 :src:base:ftsystem.c +"{ObjDir}fttype1.c.x" \xC4 :src:base:fttype1.c +"{ObjDir}ftwinfnt.c.x" \xC4 :src:base:ftwinfnt.c +"{ObjDir}ftxf86.c.x" \xC4 :src:base:ftxf86.c +"{ObjDir}ftcache.c.x" \xC4 :src:cache:ftcache.c +"{ObjDir}bdf.c.x" \xC4 :src:bdf:bdf.c +"{ObjDir}cff.c.x" \xC4 :src:cff:cff.c +"{ObjDir}type1cid.c.x" \xC4 :src:cid:type1cid.c +"{ObjDir}gxvalid.c.x" \xC4 :src:gxvalid:gxvalid.c +"{ObjDir}ftgzip.c.x" \xC4 :src:gzip:ftgzip.c +"{ObjDir}ftbzip2.c.x" \xC4 :src:bzip2:ftbzip2.c +"{ObjDir}ftlzw.c.x" \xC4 :src:lzw:ftlzw.c +"{ObjDir}otvalid.c.x" \xC4 :src:otvalid:otvalid.c +"{ObjDir}pcf.c.x" \xC4 :src:pcf:pcf.c +"{ObjDir}pfr.c.x" \xC4 :src:pfr:pfr.c +"{ObjDir}psaux.c.x" \xC4 :src:psaux:psaux.c +"{ObjDir}pshinter.c.x" \xC4 :src:pshinter:pshinter.c +"{ObjDir}psmodule.c.x" \xC4 :src:psnames:psmodule.c +"{ObjDir}raster.c.x" \xC4 :src:raster:raster.c +"{ObjDir}sfnt.c.x" \xC4 :src:sfnt:sfnt.c +"{ObjDir}smooth.c.x" \xC4 :src:smooth:smooth.c +"{ObjDir}truetype.c.x" \xC4 :src:truetype:truetype.c +"{ObjDir}type1.c.x" \xC4 :src:type1:type1.c +"{ObjDir}type42.c.x" \xC4 :src:type42:type42.c +"{ObjDir}winfnt.c.x" \xC4 :src:winfonts:winfnt.c + + + +### Optional Dependencies ### +### Build this target to generate "include file" dependencies. ### + +Dependencies \xC4 $OutOfDate + MakeDepend \xB6 + -append {MAKEFILE} \xB6 + -ignore "{CIncludes}" \xB6 + -objdir "{ObjDir}" \xB6 + -objext .x \xB6 + {Includes} \xB6 + {SrcFiles} + + diff --git a/builds/mac/README b/builds/mac/README new file mode 100644 index 0000000..bd3df8a --- /dev/null +++ b/builds/mac/README @@ -0,0 +1,403 @@ +This folder contains + + * Makefile skeltons for Apple MPW (Macintosh's Programmers Workshop) + + * Python script to generate MPW makefile from skelton + + * Metrowerks CodeWarrior 9.0 project file in XML format + +------------------------------------------------------------ + +1. What is this +--------------- + +Files in this directory are designed to build FreeType +running on classic MacOS. To build FreeType running on +Mac OS X, build as the system is UNIX. + +However, Mac OS X is most useful to manipulate files in +vanilla FreeType to fit classic MacOS. + +The information about MacOS specific API is written in +appendix of this document. + +2. Requirement +-------------- + +You can use MPW: a free-charged developer environment +by Apple, or CodeWarrior: a commercial developer +environment by Metrowerks. GCC for MPW and Symantec +"Think C" are not tested at present. + + + 2-1. Apple MPW + -------------- + + Following C compilers are tested: + + m68k target: Apple SC 8.9.0d3e1 + ppc target: Apple MrC 5.0.0d3c1 + + The final MPW-GM (official release on 1999/Dec) is too + old and cannot compile FreeType, because bundled C + compilers cannot search header files in sub directories. + Updating by the final MPW-PR (pre-release on 2001/Feb) + is required. + + Required files are downloadable from: + + http://developer.apple.com/tools/mpw-tools/index.html + + Also you can find documents how to update by MPW-PR. + + Python is required to restore MPW makefiles from the + skeltons. Python bundled to Mac OS X is enough. For + classic MacOS, MacPython is available: + + http://homepages.cwi.nl/~jack/macpython/ + + MPW requires all files are typed by resource fork. + ResEdit bundled to MPW is enough. In Mac OS X, + /Developer/Tools/SetFile of DevTool is useful to + manipulate from commandline. + + 2-2. Metrowerks CodeWarrior + --------------------------- + + XML project file is generated and tested by + CodeWarrior 9.0. Older versions are not tested + at all. At present, static library for ppc target + is available in the project file. + + +3. How to build +--------------- + + 3-1. Apple MPW + -------------- + Detailed building procedure by Apple MPW is + described in following. + + 3-1-1. Generate MPW makefiles from the skeltons + ------------------------------------------------ + + Here are 4 skeltons for following targets are + included. + + - FreeType.m68k_far.make.txt + Ancient 32bit binary executable format for + m68k MacOS: System 6, with 32bit addressing + mode (far-pointer-model) So-called "Toolbox" + API is used. + + - FreeType.m68k_cfm.make.txt + CFM binary executable format for m68k MacOS: + System 7. So-called "Toolbox" API is used. + + - FreeType.ppc_classic.make.txt + CFM binary executable format for ppc MacOS: + System 7, MacOS 8, MacOS 9. So-called "Toolbox" + API is used. + + - FreeType.ppc_carbon.make.txt + CFM binary executable format for ppc MacOS: + MacOS 9. Carbon API is used. + + At present, static library is only supported, + although targets except of m68k_far are capable + to use shared library. + + MPW makefile syntax uses 8bit characters. To keep + from violating them during version control, here + we store skeltons in pure ASCII format. You must + generate MPW makefile by Python script ascii2mpw.py. + + In Mac OS X terminal, you can convert as: + + python builds/mac/ascii2mpw.py \ + < builds/mac/FreeType.m68k_far.make.txt \ + > FreeType.m68k_far.make + + The skeltons are designed to use in the top + directory where there are builds, include, src etc. + You must name the generated MPW makefile by removing + ".txt" from source skelton name. + + 3-1-2. Add resource forks to related files + ------------------------------------------ + + MPW's Make and C compilers cannot recognize files + without resource fork. You have to add resource + fork to the files that MPW uses. In Mac OS X + terminal of the system, you can do as: + + find . -name '*.[ch]' -exec \ + /Developer/Tools/SetFile -a l -c "MPS " -t TEXT \{\} \; + + find . -name '*.make' -exec \ + /Developer/Tools/SetFile -a l -c "MPS " -t TEXT \{\} \; + + + 3-1-3. Open MPW shell and build + ------------------------------- + + Open MPW shell and go to the top directory that + FreeType sources are extracted (MPW makefile must + be located in there), from "Set Directory" in + "Directory" menu. + + Choose "Build" from "Build" menu, and type the + name of project by removing ".make" from MPW + makefile, as: FreeType.m68k_far + + If building is successfully finished, you can find + built library in objs/ directory. + + + 3-2. Metrowerks CodeWarrior + --------------------------- + + Detailed building procedure by Metrowerks + CodeWarrior (CW) 9.0 is described in following. + + 3-2-1. Import XML project file + ------------------------------ + + CW XML project file is not ready for double- + click. Start CodeWarrior IDE, and choose + "Import project" in "File" menu. Choose XML + project file: builds/mac/ftlib.prj.xml. + In next, you will be asked where to save CW + native project file: you must choose + "builds/mac/ftlib.prj". The project file is + designed with relative path from there. After + CW native project file is generated, it is + automatically loaded, small project window + titled "ftlib.prj" is displayed. + + 3-2-2. Building + --------------- + Choose "Make" from "Project" menu. If building + is successfully finished, you can find built + library at objs/FreeTypeLib. + +4. TODO +------- + + 4-1. All modules should be included + ----------------------------------- + + At present, MPW makefiles and CW project file are + just updated versions of these by Leonard. Some + modules are added after the last maintenance, they + are not included. + + 4-2. Working test with ftdemos + ------------------------------ + + At present, MPW makefiles and CW project file can + build FreeType for classic MacOS. But their working + behaviours are not tested at all. Building ftdemos + for classic MacOS and working test is required. + + 4-3. Porting Jam onto MPW + ------------------------- + + FreeType uses Jam (and FT-Jam) for unified cross- + platform building tool. At present, Jam is not ported + to MPW. To update classic MacOS support easily, + building by Jam is expected on MPW. + + +APPENDIX I +---------- + + A-1. Framework dependencies + --------------------------- + + src/base/ftmac.c adds two Mac-specific features to + FreeType. These features are based on MacOS libraries. + + * accessing resource-fork font + The fonts for classic MacOS store their graphical data + in resource forks which cannot be accessed via ANSI C + functions. FreeType2 provides functions to handle such + resource fork fonts, they are based on File Manager + framework of MacOS. In addition, HFS and HFS+ file + system driver of Linux is supported. Following + functions are for this purpose. + + FT_New_Face_From_Resource() + FT_New_Face_From_FSSpec() + FT_New_Face_From_FSRef() + + * resolving font name to font file + The font menu of MacOS application prefers font name + written in FOND resource than sfnt resource. FreeType2 + provides functions to find font file by name in MacOS + application, they are based on QuickDraw Font Manager + and Apple Type Service framework of MacOS. + + FT_GetFile_From_Mac_Name() + FT_GetFile_From_Mac_ATS_Name() + + Working functions for each MacOS are summarized as + following. + + upto MacOS 6: + not tested (you have to obtain MPW 2.x) + + MacOS 7.x, 8.x, 9.x (without CarbonLib): + FT_GetFile_From_Mac_Name() + FT_New_Face_From_Resource() + FT_New_Face_From_FSSpec() + + MacOS 9.x (with CarbonLib): + FT_GetFile_From_Mac_Name() + FT_New_Face_From_Resource() + FT_New_Face_From_FSSpec() + FT_New_Face_From_FSRef() + + Mac OS X upto 10.4.x: + FT_GetFile_From_Mac_Name() deprecated + FT_New_Face_From_FSSpec() deprecated + FT_GetFile_From_Mac_ATS_Name() deprecated? + FT_New_Face_From_FSRef() + + A-2. Deprecated Functions + ------------------------- + + A-2-1. FileManager + ------------------ + + For convenience to write MacOS application, ftmac.c + provides functions to specify a file by FSSpec and FSRef, + because the file identification pathname had ever been + unrecommended method in MacOS programming. + + Toward to MacOS X 10.4 & 5, Carbon functions using FSSpec + datatype is noticed as deprecated, and recommended to + migrate to FSRef datatype. The big differences of FSRef + against FSSpec are explained in Apple TechNotes 2078. + + http://developer.apple.com/technotes/tn2002/tn2078.html + + - filename length: the max length of file + name of FSRef is 255 chars (it is limit of HFS+), + that of FSSpec is 31 chars (it is limit of HFS). + + - filename encoding: FSSpec is localized by + legacy encoding for each language system, + FSRef is Unicode enabled. + + A-2-2. FontManager + ------------------ + + Following functions receive QuickDraw fontname: + + FT_GetFile_From_Mac_Name() + + QuickDraw is deprecated and replaced by Quartz + since Mac OS X 10.4. They are still kept for + backward compatibility. By undefinition of + HAVE_QUICKDRAW in building, you can change these + functions to return FT_Err_Unimplemented always. + + Replacement functions are added for migration. + + FT_GetFile_From_Mac_ATS_Name() + + They are usable on Mac OS X only. On older systems, + these functions return FT_Err_Unimplemented always. + + The detailed incompatibilities and possibility + of FontManager emulation without QuickDraw is + explained in + + http://www.gyve.org/~mpsuzuki/ats_benchmark.html + + A-3. Framework Availabilities + ----------------------------- + + The framework of MacOS are often revised, especially + when new format of binary executable is introduced. + Following table is the minimum version of frameworks + to use functions used in FreeType2. The table is + extracted from MPW header files for assembly language. + + *** NOTE *** + The conditional definition of available data type + in MPW compiler is insufficient. You can compile + program using FSRef data type for older systems + (MacOS 7, 8) that don't know FSRef data type. + + + +-------------------+-----------------------------+ + CPU | mc680x0 | PowerPC | + +---------+---------+---------+---------+---------+ + Binary Executable Format | Classic | 68K-CFM | CFM | CFM | Mach-O | + +---------+---------+---------+---------+---------+ + Framework API | Toolbox | Toolbox | Toolbox | Carbon | Carbon | + +---------+---------+---------+---------+---------+ + + +---------+---------+---------+---------+---------+ + | ?(*) |Interface|Interface|CarbonLib|Mac OS X | + | |Lib |Lib | | | +* Files.h +---------+---------+---------+---------+---------+ +PBGetFCBInfoSync() | o | 7.1- | 7.1- | 1.0- | o | +FSMakeFSSpec() | o | 7.1- | 7.1- | 1.0- | o | +FSGetForkCBInfo() | o | (**) | 9.0- | 1.0- | o | +FSpMakeFSRef() | o | (**) | 9.0- | 1.0- | o | +FSGetCatalogInfo() | o | (**) | 9.0- | 1.0- | -10.3 | +FSPathMakeRef() | x | x | x | 1.1- | -10.3 | + +---------+---------+---------+---------+---------+ + + +---------+---------+---------+---------+---------+ + | ?(*) |Font |Font |CarbonLib|Mac OS X | + | |Manager |Manager | | | +* Fonts.h +---------+---------+---------+---------+---------+ +FMCreateFontFamilyIterator() | x | x | 9.0- | 1.0- | -10.3 | +FMDisposeFontFamilyIterator() | x | x | 9.0- | 1.0- | -10.3 | +FMGetNextFontFamily() | x | x | 9.0- | 1.0- | -10.3 | +FMGetFontFamilyName() | x | x | 9.0- | 1.0- | -10.3 | +FMCreateFontFamilyInstanceIterator() | x | x | 9.0- | 1.0- | -10.3 | +FMDisposeFontFamilyInstanceIterator() | x | x | 9.0- | 1.0- | -10.3 | +FMGetNextFontFamilyInstance() | x | x | 9.0- | 1.0- | -10.3 | + +---------+---------+---------+---------+---------+ + + +---------+---------+---------+---------+---------+ + | - | - | - |CarbonLib|Mac OS X | +* ATSFont.h (***) +---------+---------+---------+---------+---------+ +ATSFontFindFromName() | x | x | x | x | o | +ATSFontGetFileSpecification() | x | x | x | x | o | + +---------+---------+---------+---------+---------+ + + (*) + In the "Classic": the original binary executable + format, these framework functions are directly + transformed to MacOS system call. Therefore, the + exact availability should be checked by running + system. + + (**) + InterfaceLib is bundled to MacOS and its version + is usually equal to MacOS. There's no separate + update for InterfaceLib. It is supposed that + there's no InterfaceLib 9.x for m68k platforms. + In fact, these functions are FSRef dependent. + + (***) + ATSUI framework is available on ATSUnicode 8.5 on + ppc Toolbox CFM, CarbonLib 1.0 too. But its base: + ATS font manager is not published in these versions. + +------------------------------------------------------------ +Last update: 2009-Jul-25. + +Currently maintained by + suzuki toshiya, +Originally prepared by + Leonard Rosenthol, + Just van Rossum, + +This directory is now actively maintained as part of the FreeType Project. diff --git a/builds/mac/ascii2mpw.py b/builds/mac/ascii2mpw.py new file mode 100755 index 0000000..ad32b21 --- /dev/null +++ b/builds/mac/ascii2mpw.py @@ -0,0 +1,24 @@ +#!/usr/bin/env python +import sys +import string + +if len( sys.argv ) == 1 : + for asc_line in sys.stdin.readlines(): + mpw_line = string.replace(asc_line, "\\xA5", "\245") + mpw_line = string.replace(mpw_line, "\\xB6", "\266") + mpw_line = string.replace(mpw_line, "\\xC4", "\304") + mpw_line = string.replace(mpw_line, "\\xC5", "\305") + mpw_line = string.replace(mpw_line, "\\xFF", "\377") + mpw_line = string.replace(mpw_line, "\n", "\r") + mpw_line = string.replace(mpw_line, "\\n", "\n") + sys.stdout.write(mpw_line) +elif sys.argv[1] == "-r" : + for mpw_line in sys.stdin.readlines(): + asc_line = string.replace(mpw_line, "\n", "\\n") + asc_line = string.replace(asc_line, "\r", "\n") + asc_line = string.replace(asc_line, "\245", "\\xA5") + asc_line = string.replace(asc_line, "\266", "\\xB6") + asc_line = string.replace(asc_line, "\304", "\\xC4") + asc_line = string.replace(asc_line, "\305", "\\xC5") + asc_line = string.replace(asc_line, "\377", "\\xFF") + sys.stdout.write(asc_line) diff --git a/builds/mac/ftlib.prj.xml b/builds/mac/ftlib.prj.xml new file mode 100644 index 0000000..cbbc45e --- /dev/null +++ b/builds/mac/ftlib.prj.xml @@ -0,0 +1,1194 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +]> + + + + + FreeTypeLib + + + + UserSourceTrees + + + AlwaysSearchUserPathstrue + InterpretDOSAndUnixPathstrue + RequireFrameworkStyleIncludesfalse + SourceRelativeIncludesfalse + UserSearchPaths + + SearchPath + Path: + PathFormatMacOS + PathRootProject + + Recursivetrue + FrameworkPathfalse + HostFlagsAll + + + SearchPath + Path:::include: + PathFormatMacOS + PathRootProject + + Recursivetrue + FrameworkPathfalse + HostFlagsAll + + + SearchPath + Path:::src: + PathFormatMacOS + PathRootProject + + Recursivetrue + FrameworkPathfalse + HostFlagsAll + + + SearchPath + Path:: + PathFormatMacOS + PathRootProject + + Recursivetrue + FrameworkPathfalse + HostFlagsAll + + + SystemSearchPaths + + SearchPath + Path: + PathFormatMacOS + PathRootCodeWarrior + + Recursivetrue + FrameworkPathfalse + HostFlagsAll + + + + + MWRuntimeSettings_WorkingDirectory + MWRuntimeSettings_CommandLine + MWRuntimeSettings_HostApplication + Path + PathFormatGeneric + PathRootAbsolute + + MWRuntimeSettings_EnvVars + + + LinkerMacOS PPC Linker + PreLinker + PostLinker + TargetnameFreeTypeLib + OutputDirectory + Path:::objs: + PathFormatMacOS + PathRootProject + + SaveEntriesUsingRelativePathsfalse + + + FileMappings + + FileTypeAPPL + FileExtension + Compiler + EditLanguage + Precompilefalse + Launchabletrue + ResourceFiletrue + IgnoredByMakefalse + + + FileTypeAppl + FileExtension + Compiler + EditLanguage + Precompilefalse + Launchabletrue + ResourceFiletrue + IgnoredByMakefalse + + + FileTypeMMLB + FileExtension + CompilerLib Import PPC + EditLanguage + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeMPLF + FileExtension + CompilerLib Import PPC + EditLanguage + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeMWCD + FileExtension + Compiler + EditLanguage + Precompilefalse + Launchabletrue + ResourceFiletrue + IgnoredByMakefalse + + + FileTypeRSRC + FileExtension + Compiler + EditLanguage + Precompilefalse + Launchabletrue + ResourceFiletrue + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.bh + CompilerBalloon Help + EditLanguage + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.c + CompilerMW C/C++ PPC + EditLanguageC/C++ + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.c++ + CompilerMW C/C++ PPC + EditLanguageC/C++ + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.cc + CompilerMW C/C++ PPC + EditLanguageC/C++ + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.cp + CompilerMW C/C++ PPC + EditLanguageC/C++ + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.cpp + CompilerMW C/C++ PPC + EditLanguageC/C++ + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.exp + Compiler + EditLanguage + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.h + CompilerMW C/C++ PPC + EditLanguageC/C++ + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMaketrue + + + FileTypeTEXT + FileExtension.p + CompilerMW Pascal PPC + EditLanguage + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.pas + CompilerMW Pascal PPC + EditLanguage + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.pch + CompilerMW C/C++ PPC + EditLanguageC/C++ + Precompiletrue + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.pch++ + CompilerMW C/C++ PPC + EditLanguageC/C++ + Precompiletrue + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.ppu + CompilerMW Pascal PPC + EditLanguage + Precompiletrue + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.r + CompilerRez + EditLanguageRez + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeTEXT + FileExtension.s + CompilerPPCAsm + EditLanguage + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypeXCOF + FileExtension + CompilerXCOFF Import PPC + EditLanguage + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypedocu + FileExtension + Compiler + EditLanguage + Precompilefalse + Launchabletrue + ResourceFiletrue + IgnoredByMakefalse + + + FileTypersrc + FileExtension + Compiler + EditLanguage + Precompilefalse + Launchabletrue + ResourceFiletrue + IgnoredByMakefalse + + + FileTypeshlb + FileExtension + CompilerPEF Import PPC + EditLanguage + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileTypestub + FileExtension + CompilerPEF Import PPC + EditLanguage + Precompilefalse + Launchablefalse + ResourceFilefalse + IgnoredByMakefalse + + + FileExtension.doc + Compiler + EditLanguage + Precompilefalse 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MWProject_MacOSX_flatrsrc0 + MWProject_MacOSX_flatrsrcfilename + MWProject_MacOSX_flatrsrcoutputdir + Path: + PathFormatMacOS + PathRootProject + + MWProject_MacOSX_installpath./ + MWProject_MacOSX_dont_prebind0 + MWProject_MacOSX_flat_namespace0 + MWProject_MacOSX_frameworkversionA + MWProject_MacOSX_currentversion0 + MWProject_MacOSX_flat_oldimpversion0 + MWProject_MacOSX_AddrMode1 + + + MWPEF_exportsNone + MWPEF_libfolder0 + MWPEF_sortcodeNone + MWPEF_expandbss0 + MWPEF_sharedata0 + MWPEF_olddefversion0 + MWPEF_oldimpversion0 + MWPEF_currentversion0 + MWPEF_fragmentname + MWPEF_collapsereloads0 + + + MWProject_PPC_typeLibrary + MWProject_PPC_outfileFreeTypeLib + MWProject_PPC_filecreator???? + MWProject_PPC_filetype???? + MWProject_PPC_size0 + MWProject_PPC_minsize0 + MWProject_PPC_stacksize0 + MWProject_PPC_flags0 + MWProject_PPC_symfilename + MWProject_PPC_rsrcname + MWProject_PPC_rsrcheaderNative + MWProject_PPC_rsrctype???? + MWProject_PPC_rsrcid0 + MWProject_PPC_rsrcflags0 + MWProject_PPC_rsrcstore0 + MWProject_PPC_rsrcmerge0 + MWProject_PPC_flatrsrc0 + MWProject_PPC_flatrsrcoutputdir + Path: + PathFormatMacOS + PathRootProject + + MWProject_PPC_flatrsrcfilename + + + MWAssembler_PPC_auxheader0 + MWAssembler_PPC_symmodeMac + MWAssembler_PPC_dialectPPC + MWAssembler_PPC_prefixfile + MWAssembler_PPC_typecheck0 + MWAssembler_PPC_warnings0 + MWAssembler_PPC_casesensitive0 + + + PList_OutputTypeFile + PList_OutputEncodingUTF-8 + PList_PListVersion1.0 + PList_Prefix + PList_FileFilenameInfo.plist + PList_FileDirectory + Path: + PathFormatMacOS + PathRootProject + + PList_ResourceTypeplst + PList_ResourceID0 + PList_ResourceName + + + MWRez_Language_maxwidth80 + MWRez_Language_scriptRoman + MWRez_Language_alignmentAlign1 + MWRez_Language_filtermodeFilterSkip + MWRez_Language_suppresswarnings0 + MWRez_Language_escapecontrolchars1 + MWRez_Language_prefixname + MWRez_Language_filteredtypes'CODE' 'DATA' 'PICT' + + + + Name + ftsystem.c + MacOS + Text + Debug + + + 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smooth.c + MacOS + + + FreeTypeLib + Name + truetype.c + MacOS + + + FreeTypeLib + Name + type1cid.c + MacOS + + + FreeTypeLib + Name + winfnt.c + MacOS + + + FreeTypeLib + Name + type1.c + MacOS + + + FreeTypeLib + Name + pshinter.c + MacOS + + + FreeTypeLib + Name + pcf.c + MacOS + + + FreeTypeLib + Name + ftraster.c + MacOS + + + FreeTypeLib + Name + ftrend1.c + MacOS + + + + + diff --git a/builds/mac/ftmac.c b/builds/mac/ftmac.c new file mode 100644 index 0000000..719dd0c --- /dev/null +++ b/builds/mac/ftmac.c @@ -0,0 +1,1534 @@ +/***************************************************************************/ +/* */ +/* ftmac.c */ +/* */ +/* Mac FOND support. Written by just@letterror.com. */ +/* Heavily Fixed by mpsuzuki, George Williams and Sean McBride */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by */ +/* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* + Notes + + Mac suitcase files can (and often do!) contain multiple fonts. To + support this I use the face_index argument of FT_(Open|New)_Face() + functions, and pretend the suitcase file is a collection. + + Warning: fbit and NFNT bitmap resources are not supported yet. In old + sfnt fonts, bitmap glyph data for each size is stored in each `NFNT' + resources instead of the `bdat' table in the sfnt resource. Therefore, + face->num_fixed_sizes is set to 0, because bitmap data in `NFNT' + resource is unavailable at present. + + The Mac FOND support works roughly like this: + + - Check whether the offered stream points to a Mac suitcase file. This + is done by checking the file type: it has to be 'FFIL' or 'tfil'. The + stream that gets passed to our init_face() routine is a stdio stream, + which isn't usable for us, since the FOND resources live in the + resource fork. So we just grab the stream->pathname field. + + - Read the FOND resource into memory, then check whether there is a + TrueType font and/or(!) a Type 1 font available. + + - If there is a Type 1 font available (as a separate `LWFN' file), read + its data into memory, massage it slightly so it becomes PFB data, wrap + it into a memory stream, load the Type 1 driver and delegate the rest + of the work to it by calling FT_Open_Face(). (XXX TODO: after this + has been done, the kerning data from the FOND resource should be + appended to the face: On the Mac there are usually no AFM files + available. However, this is tricky since we need to map Mac char + codes to ps glyph names to glyph ID's...) + + - If there is a TrueType font (an `sfnt' resource), read it into memory, + wrap it into a memory stream, load the TrueType driver and delegate + the rest of the work to it, by calling FT_Open_Face(). + + - Some suitcase fonts (notably Onyx) might point the `LWFN' file to + itself, even though it doesn't contains `POST' resources. To handle + this special case without opening the file an extra time, we just + ignore errors from the `LWFN' and fallback to the `sfnt' if both are + available. + */ + + +#include +#include FT_FREETYPE_H +#include FT_TRUETYPE_TAGS_H +#include FT_INTERNAL_STREAM_H +#include "ftbase.h" + +#if defined( __GNUC__ ) || defined( __IBMC__ ) + /* This is for Mac OS X. Without redefinition, OS_INLINE */ + /* expands to `static inline' which doesn't survive the */ + /* -ansi compilation flag of GCC. */ +#if !HAVE_ANSI_OS_INLINE +#undef OS_INLINE +#define OS_INLINE static __inline__ +#endif +#include +#include +#include /* PATH_MAX */ +#else +#include +#include +#include +#include +#include +#include +#endif + +#ifndef PATH_MAX +#define PATH_MAX 1024 /* same with Mac OS X's syslimits.h */ +#endif + +#if defined( __MWERKS__ ) && !TARGET_RT_MAC_MACHO +#include +#endif + +#define FT_DEPRECATED_ATTRIBUTE + +#include FT_MAC_H + + /* undefine blocking-macros in ftmac.h */ +#undef FT_GetFile_From_Mac_Name +#undef FT_GetFile_From_Mac_ATS_Name +#undef FT_New_Face_From_FOND +#undef FT_New_Face_From_FSSpec +#undef FT_New_Face_From_FSRef + + + /* FSSpec functions are deprecated since Mac OS X 10.4 */ +#ifndef HAVE_FSSPEC +#if TARGET_API_MAC_OS8 || TARGET_API_MAC_CARBON +#define HAVE_FSSPEC 1 +#else +#define HAVE_FSSPEC 0 +#endif +#endif + + /* most FSRef functions were introduced since Mac OS 9 */ +#ifndef HAVE_FSREF +#if TARGET_API_MAC_OSX +#define HAVE_FSREF 1 +#else +#define HAVE_FSREF 0 +#endif +#endif + + /* QuickDraw is deprecated since Mac OS X 10.4 */ +#ifndef HAVE_QUICKDRAW_CARBON +#if TARGET_API_MAC_OS8 || TARGET_API_MAC_CARBON +#define HAVE_QUICKDRAW_CARBON 1 +#else +#define HAVE_QUICKDRAW_CARBON 0 +#endif +#endif + + /* AppleTypeService is available since Mac OS X */ +#ifndef HAVE_ATS +#if TARGET_API_MAC_OSX +#define HAVE_ATS 1 +#ifndef kATSOptionFlagsUnRestrictedScope /* since Mac OS X 10.1 */ +#define kATSOptionFlagsUnRestrictedScope kATSOptionFlagsDefault +#endif +#else +#define HAVE_ATS 0 +#endif +#endif + + /* `configure' checks the availability of `ResourceIndex' strictly */ + /* and sets HAVE_TYPE_RESOURCE_INDEX to 1 or 0 always. If it is */ + /* not set (e.g., a build without `configure'), the availability */ + /* is guessed from the SDK version. */ +#ifndef HAVE_TYPE_RESOURCE_INDEX +#if !defined( MAC_OS_X_VERSION_10_5 ) || \ + ( MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5 ) +#define HAVE_TYPE_RESOURCE_INDEX 0 +#else +#define HAVE_TYPE_RESOURCE_INDEX 1 +#endif +#endif /* !HAVE_TYPE_RESOURCE_INDEX */ + +#if ( HAVE_TYPE_RESOURCE_INDEX == 0 ) +typedef short ResourceIndex; +#endif + + /* Set PREFER_LWFN to 1 if LWFN (Type 1) is preferred over + TrueType in case *both* are available (this is not common, + but it *is* possible). */ +#ifndef PREFER_LWFN +#define PREFER_LWFN 1 +#endif + +#ifdef FT_MACINTOSH + +#if !HAVE_QUICKDRAW_CARBON /* QuickDraw is deprecated since Mac OS X 10.4 */ + + FT_EXPORT_DEF( FT_Error ) + FT_GetFile_From_Mac_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + { + FT_UNUSED( fontName ); + FT_UNUSED( pathSpec ); + FT_UNUSED( face_index ); + + return FT_Err_Unimplemented_Feature; + } + +#else + + FT_EXPORT_DEF( FT_Error ) + FT_GetFile_From_Mac_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + { + OptionBits options = kFMUseGlobalScopeOption; + + FMFontFamilyIterator famIter; + OSStatus status = FMCreateFontFamilyIterator( NULL, NULL, + options, + &famIter ); + FMFont the_font = 0; + FMFontFamily family = 0; + + + *face_index = 0; + while ( status == 0 && !the_font ) + { + status = FMGetNextFontFamily( &famIter, &family ); + if ( status == 0 ) + { + int stat2; + FMFontFamilyInstanceIterator instIter; + Str255 famNameStr; + char famName[256]; + + + /* get the family name */ + FMGetFontFamilyName( family, famNameStr ); + CopyPascalStringToC( famNameStr, famName ); + + /* iterate through the styles */ + FMCreateFontFamilyInstanceIterator( family, &instIter ); + + *face_index = 0; + stat2 = 0; + + while ( stat2 == 0 && !the_font ) + { + FMFontStyle style; + FMFontSize size; + FMFont font; + + + stat2 = FMGetNextFontFamilyInstance( &instIter, &font, + &style, &size ); + if ( stat2 == 0 && size == 0 ) + { + char fullName[256]; + + + /* build up a complete face name */ + ft_strcpy( fullName, famName ); + if ( style & bold ) + ft_strcat( fullName, " Bold" ); + if ( style & italic ) + ft_strcat( fullName, " Italic" ); + + /* compare with the name we are looking for */ + if ( ft_strcmp( fullName, fontName ) == 0 ) + { + /* found it! */ + the_font = font; + } + else + ++(*face_index); + } + } + + FMDisposeFontFamilyInstanceIterator( &instIter ); + } + } + + FMDisposeFontFamilyIterator( &famIter ); + + if ( the_font ) + { + FMGetFontContainer( the_font, pathSpec ); + return FT_Err_Ok; + } + else + return FT_Err_Unknown_File_Format; + } + +#endif /* HAVE_QUICKDRAW_CARBON */ + + +#if HAVE_ATS + + /* Private function. */ + /* The FSSpec type has been discouraged for a long time, */ + /* unfortunately an FSRef replacement API for */ + /* ATSFontGetFileSpecification() is only available in */ + /* Mac OS X 10.5 and later. */ + static OSStatus + FT_ATSFontGetFileReference( ATSFontRef ats_font_id, + FSRef* ats_font_ref ) + { + OSStatus err; + +#if !defined( MAC_OS_X_VERSION_10_5 ) || \ + MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5 + FSSpec spec; + + + err = ATSFontGetFileSpecification( ats_font_id, &spec ); + if ( noErr == err ) + err = FSpMakeFSRef( &spec, ats_font_ref ); +#else + err = ATSFontGetFileReference( ats_font_id, ats_font_ref ); +#endif + + return err; + } + + + static FT_Error + FT_GetFileRef_From_Mac_ATS_Name( const char* fontName, + FSRef* ats_font_ref, + FT_Long* face_index ) + { + CFStringRef cf_fontName; + ATSFontRef ats_font_id; + + + *face_index = 0; + + cf_fontName = CFStringCreateWithCString( NULL, fontName, + kCFStringEncodingMacRoman ); + ats_font_id = ATSFontFindFromName( cf_fontName, + kATSOptionFlagsUnRestrictedScope ); + CFRelease( cf_fontName ); + + if ( ats_font_id == 0 || ats_font_id == 0xFFFFFFFFUL ) + return FT_Err_Unknown_File_Format; + + if ( noErr != FT_ATSFontGetFileReference( ats_font_id, ats_font_ref ) ) + return FT_Err_Unknown_File_Format; + + /* face_index calculation by searching preceding fontIDs */ + /* with same FSRef */ + { + ATSFontRef id2 = ats_font_id - 1; + FSRef ref2; + + + while ( id2 > 0 ) + { + if ( noErr != FT_ATSFontGetFileReference( id2, &ref2 ) ) + break; + if ( noErr != FSCompareFSRefs( ats_font_ref, &ref2 ) ) + break; + + id2--; + } + *face_index = ats_font_id - ( id2 + 1 ); + } + + return FT_Err_Ok; + } + +#endif + +#if !HAVE_ATS + + FT_EXPORT_DEF( FT_Error ) + FT_GetFilePath_From_Mac_ATS_Name( const char* fontName, + UInt8* path, + UInt32 maxPathSize, + FT_Long* face_index ) + { + FT_UNUSED( fontName ); + FT_UNUSED( path ); + FT_UNUSED( maxPathSize ); + FT_UNUSED( face_index ); + + return FT_Err_Unimplemented_Feature; + } + +#else + + FT_EXPORT_DEF( FT_Error ) + FT_GetFilePath_From_Mac_ATS_Name( const char* fontName, + UInt8* path, + UInt32 maxPathSize, + FT_Long* face_index ) + { + FSRef ref; + FT_Error err; + + + err = FT_GetFileRef_From_Mac_ATS_Name( fontName, &ref, face_index ); + if ( FT_Err_Ok != err ) + return err; + + if ( noErr != FSRefMakePath( &ref, path, maxPathSize ) ) + return FT_Err_Unknown_File_Format; + + return FT_Err_Ok; + } + +#endif /* HAVE_ATS */ + + +#if !HAVE_FSSPEC || !HAVE_ATS + + FT_EXPORT_DEF( FT_Error ) + FT_GetFile_From_Mac_ATS_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + { + FT_UNUSED( fontName ); + FT_UNUSED( pathSpec ); + FT_UNUSED( face_index ); + + return FT_Err_Unimplemented_Feature; + } + +#else + + /* This function is deprecated because FSSpec is deprecated in Mac OS X. */ + FT_EXPORT_DEF( FT_Error ) + FT_GetFile_From_Mac_ATS_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + { + FSRef ref; + FT_Error err; + + + err = FT_GetFileRef_From_Mac_ATS_Name( fontName, &ref, face_index ); + if ( FT_Err_Ok != err ) + return err; + + if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, NULL, NULL, + pathSpec, NULL ) ) + return FT_Err_Unknown_File_Format; + + return FT_Err_Ok; + } + +#endif + + +#if defined( __MWERKS__ ) && !TARGET_RT_MAC_MACHO + +#define STREAM_FILE( stream ) ( (FT_FILE*)stream->descriptor.pointer ) + + + FT_CALLBACK_DEF( void ) + ft_FSp_stream_close( FT_Stream stream ) + { + ft_fclose( STREAM_FILE( stream ) ); + + stream->descriptor.pointer = NULL; + stream->size = 0; + stream->base = 0; + } + + + FT_CALLBACK_DEF( unsigned long ) + ft_FSp_stream_io( FT_Stream stream, + unsigned long offset, + unsigned char* buffer, + unsigned long count ) + { + FT_FILE* file; + + + file = STREAM_FILE( stream ); + + ft_fseek( file, offset, SEEK_SET ); + + return (unsigned long)ft_fread( buffer, 1, count, file ); + } + +#endif /* __MWERKS__ && !TARGET_RT_MAC_MACHO */ + + +#if HAVE_FSSPEC && !HAVE_FSREF + + /* isDirectory is a dummy to synchronize API with FSPathMakeRef() */ + static OSErr + FT_FSPathMakeSpec( const UInt8* pathname, + FSSpec* spec_p, + Boolean isDirectory ) + { + const char *p, *q; + short vRefNum; + long dirID; + Str255 nodeName; + OSErr err; + FT_UNUSED( isDirectory ); + + + p = q = (const char *)pathname; + dirID = 0; + vRefNum = 0; + + while ( 1 ) + { + int len = ft_strlen( p ); + + + if ( len > 255 ) + len = 255; + + q = p + len; + + if ( q == p ) + return 0; + + if ( 255 < ft_strlen( (char *)pathname ) ) + { + while ( p < q && *q != ':' ) + q--; + } + + if ( p < q ) + *(char *)nodeName = q - p; + else if ( ft_strlen( p ) < 256 ) + *(char *)nodeName = ft_strlen( p ); + else + return errFSNameTooLong; + + ft_strncpy( (char *)nodeName + 1, (char *)p, *(char *)nodeName ); + err = FSMakeFSSpec( vRefNum, dirID, nodeName, spec_p ); + if ( err || '\0' == *q ) + return err; + + vRefNum = spec_p->vRefNum; + dirID = spec_p->parID; + + p = q; + } + } + + + static OSErr + FT_FSpMakePath( const FSSpec* spec_p, + UInt8* path, + UInt32 maxPathSize ) + { + OSErr err; + FSSpec spec = *spec_p; + short vRefNum; + long dirID; + Str255 parDir_name; + + + FT_MEM_SET( path, 0, maxPathSize ); + while ( 1 ) + { + int child_namelen = ft_strlen( (char *)path ); + unsigned char node_namelen = spec.name[0]; + unsigned char* node_name = spec.name + 1; + + + if ( node_namelen + child_namelen > maxPathSize ) + return errFSNameTooLong; + + FT_MEM_MOVE( path + node_namelen + 1, path, child_namelen ); + FT_MEM_COPY( path, node_name, node_namelen ); + if ( child_namelen > 0 ) + path[node_namelen] = ':'; + + vRefNum = spec.vRefNum; + dirID = spec.parID; + parDir_name[0] = '\0'; + err = FSMakeFSSpec( vRefNum, dirID, parDir_name, &spec ); + if ( noErr != err || dirID == spec.parID ) + break; + } + return noErr; + } + +#endif /* HAVE_FSSPEC && !HAVE_FSREF */ + + + static OSErr + FT_FSPathMakeRes( const UInt8* pathname, + ResFileRefNum* res ) + { + +#if HAVE_FSREF + + OSErr err; + FSRef ref; + + + if ( noErr != FSPathMakeRef( pathname, &ref, FALSE ) ) + return FT_Err_Cannot_Open_Resource; + + /* at present, no support for dfont format */ + err = FSOpenResourceFile( &ref, 0, NULL, fsRdPerm, res ); + if ( noErr == err ) + return err; + + /* fallback to original resource-fork font */ + *res = FSOpenResFile( &ref, fsRdPerm ); + err = ResError(); + +#else + + OSErr err; + FSSpec spec; + + + if ( noErr != FT_FSPathMakeSpec( pathname, &spec, FALSE ) ) + return FT_Err_Cannot_Open_Resource; + + /* at present, no support for dfont format without FSRef */ + /* (see above), try original resource-fork font */ + *res = FSpOpenResFile( &spec, fsRdPerm ); + err = ResError(); + +#endif /* HAVE_FSREF */ + + return err; + } + + + /* Return the file type for given pathname */ + static OSType + get_file_type_from_path( const UInt8* pathname ) + { + +#if HAVE_FSREF + + FSRef ref; + FSCatalogInfo info; + + + if ( noErr != FSPathMakeRef( pathname, &ref, FALSE ) ) + return ( OSType ) 0; + + if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoFinderInfo, &info, + NULL, NULL, NULL ) ) + return ( OSType ) 0; + + return ((FInfo *)(info.finderInfo))->fdType; + +#else + + FSSpec spec; + FInfo finfo; + + + if ( noErr != FT_FSPathMakeSpec( pathname, &spec, FALSE ) ) + return ( OSType ) 0; + + if ( noErr != FSpGetFInfo( &spec, &finfo ) ) + return ( OSType ) 0; + + return finfo.fdType; + +#endif /* HAVE_FSREF */ + + } + + + /* Given a PostScript font name, create the Macintosh LWFN file name. */ + static void + create_lwfn_name( char* ps_name, + Str255 lwfn_file_name ) + { + int max = 5, count = 0; + FT_Byte* p = lwfn_file_name; + FT_Byte* q = (FT_Byte*)ps_name; + + + lwfn_file_name[0] = 0; + + while ( *q ) + { + if ( ft_isupper( *q ) ) + { + if ( count ) + max = 3; + count = 0; + } + if ( count < max && ( ft_isalnum( *q ) || *q == '_' ) ) + { + *++p = *q; + lwfn_file_name[0]++; + count++; + } + q++; + } + } + + + static short + count_faces_sfnt( char* fond_data ) + { + /* The count is 1 greater than the value in the FOND. */ + /* Isn't that cute? :-) */ + + return EndianS16_BtoN( *( (short*)( fond_data + + sizeof ( FamRec ) ) ) ) + 1; + } + + + static short + count_faces_scalable( char* fond_data ) + { + AsscEntry* assoc; + FamRec* fond; + short i, face, face_all; + + + fond = (FamRec*)fond_data; + face_all = EndianS16_BtoN( *( (short *)( fond_data + + sizeof ( FamRec ) ) ) ) + 1; + assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 ); + face = 0; + + for ( i = 0; i < face_all; i++ ) + { + if ( 0 == EndianS16_BtoN( assoc[i].fontSize ) ) + face++; + } + return face; + } + + + /* Look inside the FOND data, answer whether there should be an SFNT + resource, and answer the name of a possible LWFN Type 1 file. + + Thanks to Paul Miller (paulm@profoundeffects.com) for the fix + to load a face OTHER than the first one in the FOND! + */ + + static void + parse_fond( char* fond_data, + short* have_sfnt, + ResID* sfnt_id, + Str255 lwfn_file_name, + short face_index ) + { + AsscEntry* assoc; + AsscEntry* base_assoc; + FamRec* fond; + + + *sfnt_id = 0; + *have_sfnt = 0; + lwfn_file_name[0] = 0; + + fond = (FamRec*)fond_data; + assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 ); + base_assoc = assoc; + + /* the maximum faces in a FOND is 48, size of StyleTable.indexes[] */ + if ( 47 < face_index ) + return; + + /* Let's do a little range checking before we get too excited here */ + if ( face_index < count_faces_sfnt( fond_data ) ) + { + assoc += face_index; /* add on the face_index! */ + + /* if the face at this index is not scalable, + fall back to the first one (old behavior) */ + if ( EndianS16_BtoN( assoc->fontSize ) == 0 ) + { + *have_sfnt = 1; + *sfnt_id = EndianS16_BtoN( assoc->fontID ); + } + else if ( base_assoc->fontSize == 0 ) + { + *have_sfnt = 1; + *sfnt_id = EndianS16_BtoN( base_assoc->fontID ); + } + } + + if ( EndianS32_BtoN( fond->ffStylOff ) ) + { + unsigned char* p = (unsigned char*)fond_data; + StyleTable* style; + unsigned short string_count; + char ps_name[256]; + unsigned char* names[64]; + int i; + + + p += EndianS32_BtoN( fond->ffStylOff ); + style = (StyleTable*)p; + p += sizeof ( StyleTable ); + string_count = EndianS16_BtoN( *(short*)(p) ); + p += sizeof ( short ); + + for ( i = 0; i < string_count && i < 64; i++ ) + { + names[i] = p; + p += names[i][0]; + p++; + } + + { + size_t ps_name_len = (size_t)names[0][0]; + + + if ( ps_name_len != 0 ) + { + ft_memcpy(ps_name, names[0] + 1, ps_name_len); + ps_name[ps_name_len] = 0; + } + if ( style->indexes[face_index] > 1 && + style->indexes[face_index] <= FT_MIN( string_count, 64 ) ) + { + unsigned char* suffixes = names[style->indexes[face_index] - 1]; + + + for ( i = 1; i <= suffixes[0]; i++ ) + { + unsigned char* s; + size_t j = suffixes[i] - 1; + + + if ( j < string_count && ( s = names[j] ) != NULL ) + { + size_t s_len = (size_t)s[0]; + + + if ( s_len != 0 && ps_name_len + s_len < sizeof ( ps_name ) ) + { + ft_memcpy( ps_name + ps_name_len, s + 1, s_len ); + ps_name_len += s_len; + ps_name[ps_name_len] = 0; + } + } + } + } + } + + create_lwfn_name( ps_name, lwfn_file_name ); + } + } + + + static FT_Error + lookup_lwfn_by_fond( const UInt8* path_fond, + ConstStr255Param base_lwfn, + UInt8* path_lwfn, + int path_size ) + { + +#if HAVE_FSREF + + FSRef ref, par_ref; + int dirname_len; + + + /* Pathname for FSRef can be in various formats: HFS, HFS+, and POSIX. */ + /* We should not extract parent directory by string manipulation. */ + + if ( noErr != FSPathMakeRef( path_fond, &ref, FALSE ) ) + return FT_Err_Invalid_Argument; + + if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, + NULL, NULL, NULL, &par_ref ) ) + return FT_Err_Invalid_Argument; + + if ( noErr != FSRefMakePath( &par_ref, path_lwfn, path_size ) ) + return FT_Err_Invalid_Argument; + + if ( ft_strlen( (char *)path_lwfn ) + 1 + base_lwfn[0] > path_size ) + return FT_Err_Invalid_Argument; + + /* now we have absolute dirname in path_lwfn */ + if ( path_lwfn[0] == '/' ) + ft_strcat( (char *)path_lwfn, "/" ); + else + ft_strcat( (char *)path_lwfn, ":" ); + + dirname_len = ft_strlen( (char *)path_lwfn ); + ft_strcat( (char *)path_lwfn, (char *)base_lwfn + 1 ); + path_lwfn[dirname_len + base_lwfn[0]] = '\0'; + + if ( noErr != FSPathMakeRef( path_lwfn, &ref, FALSE ) ) + return FT_Err_Cannot_Open_Resource; + + if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, + NULL, NULL, NULL, NULL ) ) + return FT_Err_Cannot_Open_Resource; + + return FT_Err_Ok; + +#else + + int i; + FSSpec spec; + + + /* pathname for FSSpec is always HFS format */ + if ( ft_strlen( (char *)path_fond ) > path_size ) + return FT_Err_Invalid_Argument; + + ft_strcpy( (char *)path_lwfn, (char *)path_fond ); + + i = ft_strlen( (char *)path_lwfn ) - 1; + while ( i > 0 && ':' != path_lwfn[i] ) + i--; + + if ( i + 1 + base_lwfn[0] > path_size ) + return FT_Err_Invalid_Argument; + + if ( ':' == path_lwfn[i] ) + { + ft_strcpy( (char *)path_lwfn + i + 1, (char *)base_lwfn + 1 ); + path_lwfn[i + 1 + base_lwfn[0]] = '\0'; + } + else + { + ft_strcpy( (char *)path_lwfn, (char *)base_lwfn + 1 ); + path_lwfn[base_lwfn[0]] = '\0'; + } + + if ( noErr != FT_FSPathMakeSpec( path_lwfn, &spec, FALSE ) ) + return FT_Err_Cannot_Open_Resource; + + return FT_Err_Ok; + +#endif /* HAVE_FSREF */ + + } + + + static short + count_faces( Handle fond, + const UInt8* pathname ) + { + ResID sfnt_id; + short have_sfnt, have_lwfn; + Str255 lwfn_file_name; + UInt8 buff[PATH_MAX]; + FT_Error err; + short num_faces; + + + have_sfnt = have_lwfn = 0; + + HLock( fond ); + parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, 0 ); + + if ( lwfn_file_name[0] ) + { + err = lookup_lwfn_by_fond( pathname, lwfn_file_name, + buff, sizeof ( buff ) ); + if ( FT_Err_Ok == err ) + have_lwfn = 1; + } + + if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) ) + num_faces = 1; + else + num_faces = count_faces_scalable( *fond ); + + HUnlock( fond ); + return num_faces; + } + + + /* Read Type 1 data from the POST resources inside the LWFN file, + return a PFB buffer. This is somewhat convoluted because the FT2 + PFB parser wants the ASCII header as one chunk, and the LWFN + chunks are often not organized that way, so we glue chunks + of the same type together. */ + static FT_Error + read_lwfn( FT_Memory memory, + ResFileRefNum res, + FT_Byte** pfb_data, + FT_ULong* size ) + { + FT_Error error = FT_Err_Ok; + ResID res_id; + unsigned char *buffer, *p, *size_p = NULL; + FT_ULong total_size = 0; + FT_ULong old_total_size = 0; + FT_ULong post_size, pfb_chunk_size; + Handle post_data; + char code, last_code; + + + UseResFile( res ); + + /* First pass: load all POST resources, and determine the size of */ + /* the output buffer. */ + res_id = 501; + last_code = -1; + + for (;;) + { + post_data = Get1Resource( TTAG_POST, res_id++ ); + if ( post_data == NULL ) + break; /* we are done */ + + code = (*post_data)[0]; + + if ( code != last_code ) + { + if ( code == 5 ) + total_size += 2; /* just the end code */ + else + total_size += 6; /* code + 4 bytes chunk length */ + } + + total_size += GetHandleSize( post_data ) - 2; + last_code = code; + + /* detect integer overflows */ + if ( total_size < old_total_size ) + { + error = FT_Err_Array_Too_Large; + goto Error; + } + + old_total_size = total_size; + } + + if ( FT_ALLOC( buffer, (FT_Long)total_size ) ) + goto Error; + + /* Second pass: append all POST data to the buffer, add PFB fields. */ + /* Glue all consecutive chunks of the same type together. */ + p = buffer; + res_id = 501; + last_code = -1; + pfb_chunk_size = 0; + + for (;;) + { + post_data = Get1Resource( TTAG_POST, res_id++ ); + if ( post_data == NULL ) + break; /* we are done */ + + post_size = (FT_ULong)GetHandleSize( post_data ) - 2; + code = (*post_data)[0]; + + if ( code != last_code ) + { + if ( last_code != -1 ) + { + /* we are done adding a chunk, fill in the size field */ + if ( size_p != NULL ) + { + *size_p++ = (FT_Byte)( pfb_chunk_size & 0xFF ); + *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 8 ) & 0xFF ); + *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 16 ) & 0xFF ); + *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 24 ) & 0xFF ); + } + pfb_chunk_size = 0; + } + + *p++ = 0x80; + if ( code == 5 ) + *p++ = 0x03; /* the end */ + else if ( code == 2 ) + *p++ = 0x02; /* binary segment */ + else + *p++ = 0x01; /* ASCII segment */ + + if ( code != 5 ) + { + size_p = p; /* save for later */ + p += 4; /* make space for size field */ + } + } + + ft_memcpy( p, *post_data + 2, post_size ); + pfb_chunk_size += post_size; + p += post_size; + last_code = code; + } + + *pfb_data = buffer; + *size = total_size; + + Error: + CloseResFile( res ); + return error; + } + + + /* Create a new FT_Face from a file spec to an LWFN file. */ + static FT_Error + FT_New_Face_From_LWFN( FT_Library library, + const UInt8* pathname, + FT_Long face_index, + FT_Face* aface ) + { + FT_Byte* pfb_data; + FT_ULong pfb_size; + FT_Error error; + ResFileRefNum res; + + + if ( noErr != FT_FSPathMakeRes( pathname, &res ) ) + return FT_Err_Cannot_Open_Resource; + + pfb_data = NULL; + pfb_size = 0; + error = read_lwfn( library->memory, res, &pfb_data, &pfb_size ); + CloseResFile( res ); /* PFB is already loaded, useless anymore */ + if ( error ) + return error; + + return open_face_from_buffer( library, + pfb_data, + pfb_size, + face_index, + "type1", + aface ); + } + + + /* Create a new FT_Face from an SFNT resource, specified by res ID. */ + static FT_Error + FT_New_Face_From_SFNT( FT_Library library, + ResID sfnt_id, + FT_Long face_index, + FT_Face* aface ) + { + Handle sfnt = NULL; + FT_Byte* sfnt_data; + size_t sfnt_size; + FT_Error error = FT_Err_Ok; + FT_Memory memory = library->memory; + int is_cff, is_sfnt_ps; + + + sfnt = GetResource( TTAG_sfnt, sfnt_id ); + if ( sfnt == NULL ) + return FT_Err_Invalid_Handle; + + sfnt_size = (FT_ULong)GetHandleSize( sfnt ); + if ( FT_ALLOC( sfnt_data, (FT_Long)sfnt_size ) ) + { + ReleaseResource( sfnt ); + return error; + } + + HLock( sfnt ); + ft_memcpy( sfnt_data, *sfnt, sfnt_size ); + HUnlock( sfnt ); + ReleaseResource( sfnt ); + + is_cff = sfnt_size > 4 && !ft_memcmp( sfnt_data, "OTTO", 4 ); + is_sfnt_ps = sfnt_size > 4 && !ft_memcmp( sfnt_data, "typ1", 4 ); + + if ( is_sfnt_ps ) + { + FT_Stream stream; + + + if ( FT_NEW( stream ) ) + goto Try_OpenType; + + FT_Stream_OpenMemory( stream, sfnt_data, sfnt_size ); + if ( !open_face_PS_from_sfnt_stream( library, + stream, + face_index, + 0, NULL, + aface ) ) + { + FT_Stream_Close( stream ); + FT_FREE( stream ); + FT_FREE( sfnt_data ); + goto Exit; + } + + FT_FREE( stream ); + } + Try_OpenType: + error = open_face_from_buffer( library, + sfnt_data, + sfnt_size, + face_index, + is_cff ? "cff" : "truetype", + aface ); + Exit: + return error; + } + + + /* Create a new FT_Face from a file spec to a suitcase file. */ + static FT_Error + FT_New_Face_From_Suitcase( FT_Library library, + const UInt8* pathname, + FT_Long face_index, + FT_Face* aface ) + { + FT_Error error = FT_Err_Cannot_Open_Resource; + ResFileRefNum res_ref; + ResourceIndex res_index; + Handle fond; + short num_faces_in_res, num_faces_in_fond; + + + if ( noErr != FT_FSPathMakeRes( pathname, &res_ref ) ) + return FT_Err_Cannot_Open_Resource; + + UseResFile( res_ref ); + if ( ResError() ) + return FT_Err_Cannot_Open_Resource; + + num_faces_in_res = 0; + for ( res_index = 1; ; ++res_index ) + { + fond = Get1IndResource( TTAG_FOND, res_index ); + if ( ResError() ) + break; + + num_faces_in_fond = count_faces( fond, pathname ); + num_faces_in_res += num_faces_in_fond; + + if ( 0 <= face_index && face_index < num_faces_in_fond && error ) + error = FT_New_Face_From_FOND( library, fond, face_index, aface ); + + face_index -= num_faces_in_fond; + } + + CloseResFile( res_ref ); + if ( FT_Err_Ok == error && NULL != aface ) + (*aface)->num_faces = num_faces_in_res; + return error; + } + + + /* documentation is in ftmac.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Face_From_FOND( FT_Library library, + Handle fond, + FT_Long face_index, + FT_Face* aface ) + { + short have_sfnt, have_lwfn = 0; + ResID sfnt_id, fond_id; + OSType fond_type; + Str255 fond_name; + Str255 lwfn_file_name; + UInt8 path_lwfn[PATH_MAX]; + OSErr err; + FT_Error error = FT_Err_Ok; + + + GetResInfo( fond, &fond_id, &fond_type, fond_name ); + if ( ResError() != noErr || fond_type != TTAG_FOND ) + return FT_Err_Invalid_File_Format; + + HLock( fond ); + parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, face_index ); + HUnlock( fond ); + + if ( lwfn_file_name[0] ) + { + ResFileRefNum res; + + + res = HomeResFile( fond ); + if ( noErr != ResError() ) + goto found_no_lwfn_file; + +#if HAVE_FSREF + + { + UInt8 path_fond[PATH_MAX]; + FSRef ref; + + + err = FSGetForkCBInfo( res, kFSInvalidVolumeRefNum, + NULL, NULL, NULL, &ref, NULL ); + if ( noErr != err ) + goto found_no_lwfn_file; + + err = FSRefMakePath( &ref, path_fond, sizeof ( path_fond ) ); + if ( noErr != err ) + goto found_no_lwfn_file; + + error = lookup_lwfn_by_fond( path_fond, lwfn_file_name, + path_lwfn, sizeof ( path_lwfn ) ); + if ( FT_Err_Ok == error ) + have_lwfn = 1; + } + +#elif HAVE_FSSPEC + + { + UInt8 path_fond[PATH_MAX]; + FCBPBRec pb; + Str255 fond_file_name; + FSSpec spec; + + + FT_MEM_SET( &spec, 0, sizeof ( FSSpec ) ); + FT_MEM_SET( &pb, 0, sizeof ( FCBPBRec ) ); + + pb.ioNamePtr = fond_file_name; + pb.ioVRefNum = 0; + pb.ioRefNum = res; + pb.ioFCBIndx = 0; + + err = PBGetFCBInfoSync( &pb ); + if ( noErr != err ) + goto found_no_lwfn_file; + + err = FSMakeFSSpec( pb.ioFCBVRefNum, pb.ioFCBParID, + fond_file_name, &spec ); + if ( noErr != err ) + goto found_no_lwfn_file; + + err = FT_FSpMakePath( &spec, path_fond, sizeof ( path_fond ) ); + if ( noErr != err ) + goto found_no_lwfn_file; + + error = lookup_lwfn_by_fond( path_fond, lwfn_file_name, + path_lwfn, sizeof ( path_lwfn ) ); + if ( FT_Err_Ok == error ) + have_lwfn = 1; + } + +#endif /* HAVE_FSREF, HAVE_FSSPEC */ + + } + + if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) ) + error = FT_New_Face_From_LWFN( library, + path_lwfn, + face_index, + aface ); + else + error = FT_Err_Unknown_File_Format; + + found_no_lwfn_file: + if ( have_sfnt && FT_Err_Ok != error ) + error = FT_New_Face_From_SFNT( library, + sfnt_id, + face_index, + aface ); + + return error; + } + + + /* Common function to load a new FT_Face from a resource file. */ + static FT_Error + FT_New_Face_From_Resource( FT_Library library, + const UInt8* pathname, + FT_Long face_index, + FT_Face* aface ) + { + OSType file_type; + FT_Error error; + + + /* LWFN is a (very) specific file format, check for it explicitly */ + file_type = get_file_type_from_path( pathname ); + if ( file_type == TTAG_LWFN ) + return FT_New_Face_From_LWFN( library, pathname, face_index, aface ); + + /* Otherwise the file type doesn't matter (there are more than */ + /* `FFIL' and `tfil'). Just try opening it as a font suitcase; */ + /* if it works, fine. */ + + error = FT_New_Face_From_Suitcase( library, pathname, face_index, aface ); + if ( error == 0 ) + return error; + + /* let it fall through to normal loader (.ttf, .otf, etc.); */ + /* we signal this by returning no error and no FT_Face */ + *aface = NULL; + return 0; + } + + + /*************************************************************************/ + /* */ + /* */ + /* FT_New_Face */ + /* */ + /* */ + /* This is the Mac-specific implementation of FT_New_Face. In */ + /* addition to the standard FT_New_Face() functionality, it also */ + /* accepts pathnames to Mac suitcase files. For further */ + /* documentation see the original FT_New_Face() in freetype.h. */ + /* */ + FT_EXPORT_DEF( FT_Error ) + FT_New_Face( FT_Library library, + const char* pathname, + FT_Long face_index, + FT_Face* aface ) + { + FT_Open_Args args; + FT_Error error; + + + /* test for valid `library' and `aface' delayed to FT_Open_Face() */ + if ( !pathname ) + return FT_Err_Invalid_Argument; + + error = FT_Err_Ok; + *aface = NULL; + + /* try resourcefork based font: LWFN, FFIL */ + error = FT_New_Face_From_Resource( library, (UInt8 *)pathname, + face_index, aface ); + if ( error != 0 || *aface != NULL ) + return error; + + /* let it fall through to normal loader (.ttf, .otf, etc.) */ + args.flags = FT_OPEN_PATHNAME; + args.pathname = (char*)pathname; + return FT_Open_Face( library, &args, face_index, aface ); + } + + + /*************************************************************************/ + /* */ + /* */ + /* FT_New_Face_From_FSRef */ + /* */ + /* */ + /* FT_New_Face_From_FSRef is identical to FT_New_Face except it */ + /* accepts an FSRef instead of a path. */ + /* */ + /* This function is deprecated because Carbon data types (FSRef) */ + /* are not cross-platform, and thus not suitable for the freetype API. */ + FT_EXPORT_DEF( FT_Error ) + FT_New_Face_From_FSRef( FT_Library library, + const FSRef* ref, + FT_Long face_index, + FT_Face* aface ) + { + +#if !HAVE_FSREF + + FT_UNUSED( library ); + FT_UNUSED( ref ); + FT_UNUSED( face_index ); + FT_UNUSED( aface ); + + return FT_Err_Unimplemented_Feature; + +#else + + FT_Error error; + FT_Open_Args args; + OSErr err; + UInt8 pathname[PATH_MAX]; + + + if ( !ref ) + return FT_Err_Invalid_Argument; + + err = FSRefMakePath( ref, pathname, sizeof ( pathname ) ); + if ( err ) + error = FT_Err_Cannot_Open_Resource; + + error = FT_New_Face_From_Resource( library, pathname, face_index, aface ); + if ( error != 0 || *aface != NULL ) + return error; + + /* fallback to datafork font */ + args.flags = FT_OPEN_PATHNAME; + args.pathname = (char*)pathname; + return FT_Open_Face( library, &args, face_index, aface ); + +#endif /* HAVE_FSREF */ + + } + + + /*************************************************************************/ + /* */ + /* */ + /* FT_New_Face_From_FSSpec */ + /* */ + /* */ + /* FT_New_Face_From_FSSpec is identical to FT_New_Face except it */ + /* accepts an FSSpec instead of a path. */ + /* */ + /* This function is deprecated because Carbon data types (FSSpec) */ + /* are not cross-platform, and thus not suitable for the freetype API. */ + FT_EXPORT_DEF( FT_Error ) + FT_New_Face_From_FSSpec( FT_Library library, + const FSSpec* spec, + FT_Long face_index, + FT_Face* aface ) + { + +#if HAVE_FSREF + + FSRef ref; + + + if ( !spec || FSpMakeFSRef( spec, &ref ) != noErr ) + return FT_Err_Invalid_Argument; + else + return FT_New_Face_From_FSRef( library, &ref, face_index, aface ); + +#elif HAVE_FSSPEC + + FT_Error error; + FT_Open_Args args; + OSErr err; + UInt8 pathname[PATH_MAX]; + + + if ( !spec ) + return FT_Err_Invalid_Argument; + + err = FT_FSpMakePath( spec, pathname, sizeof ( pathname ) ); + if ( err ) + error = FT_Err_Cannot_Open_Resource; + + error = FT_New_Face_From_Resource( library, pathname, face_index, aface ); + if ( error != 0 || *aface != NULL ) + return error; + + /* fallback to datafork font */ + args.flags = FT_OPEN_PATHNAME; + args.pathname = (char*)pathname; + return FT_Open_Face( library, &args, face_index, aface ); + +#else + + FT_UNUSED( library ); + FT_UNUSED( spec ); + FT_UNUSED( face_index ); + FT_UNUSED( aface ); + + return FT_Err_Unimplemented_Feature; + +#endif /* HAVE_FSREF, HAVE_FSSPEC */ + + } + +#endif /* FT_MACINTOSH */ + + +/* END */ diff --git a/builds/modules.mk b/builds/modules.mk new file mode 100644 index 0000000..c4a882c --- /dev/null +++ b/builds/modules.mk @@ -0,0 +1,79 @@ +# +# FreeType 2 modules sub-Makefile +# + + +# Copyright 1996-2000, 2003, 2006, 2008 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# DO NOT INVOKE THIS MAKEFILE DIRECTLY! IT IS MEANT TO BE INCLUDED BY +# OTHER MAKEFILES. + + +# This file is in charge of handling the generation of the modules list +# file. + + +# Build the modules list. +# +$(FTMODULE_H): $(MODULES_CFG) + $(FTMODULE_H_INIT) + $(FTMODULE_H_CREATE) + $(FTMODULE_H_DONE) + +ifneq ($(findstring $(PLATFORM),dos win32 win16 os2),) + OPEN_MODULE := @echo$(space) + CLOSE_MODULE := >> $(subst /,$(SEP),$(FTMODULE_H)) + REMOVE_MODULE := @-$(DELETE) $(subst /,$(SEP),$(FTMODULE_H)) +else + OPEN_MODULE := @echo " + CLOSE_MODULE := " >> $(FTMODULE_H) + REMOVE_MODULE := @-$(DELETE) $(FTMODULE_H) +endif + + +define FTMODULE_H_INIT +$(REMOVE_MODULE) +@-echo Generating modules list in $(FTMODULE_H)... +$(OPEN_MODULE)/* This is a generated file. */$(CLOSE_MODULE) +endef + +# It is no mistake that the final closing parenthesis is on the +# next line -- it produces proper newlines during the expansion +# of `foreach'. +# +define FTMODULE_H_CREATE +$(foreach COMMAND,$(FTMODULE_H_COMMANDS),$($(COMMAND)) +) +endef + +define FTMODULE_H_DONE +$(OPEN_MODULE)/* EOF */$(CLOSE_MODULE) +@echo done. +endef + + +# $(OPEN_DRIVER) & $(CLOSE_DRIVER) are used to specify a given font driver +# in the `module.mk' rules file. +# +OPEN_DRIVER := $(OPEN_MODULE)FT_USE_MODULE( +CLOSE_DRIVER := )$(CLOSE_MODULE) + +ECHO_DRIVER := @echo "* module:$(space) +ECHO_DRIVER_DESC := ( +ECHO_DRIVER_DONE := )" + +# Each `module.mk' in the `src/*' subdirectories adds a variable with +# commands to $(FTMODULE_H_COMMANDS). Note that we can't use SRC_DIR here. +# +-include $(patsubst %,$(TOP_DIR)/src/%/module.mk,$(MODULES)) + + +# EOF diff --git a/builds/newline b/builds/newline new file mode 100644 index 0000000..8b13789 --- /dev/null +++ b/builds/newline @@ -0,0 +1 @@ + diff --git a/builds/os2/detect.mk b/builds/os2/detect.mk new file mode 100644 index 0000000..47a40a2 --- /dev/null +++ b/builds/os2/detect.mk @@ -0,0 +1,73 @@ +# +# FreeType 2 configuration file to detect an OS/2 host platform. +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +.PHONY: setup + + +ifeq ($(PLATFORM),ansi) + + ifdef OS2_SHELL + + PLATFORM := os2 + + endif # test OS2_SHELL +endif + +ifeq ($(PLATFORM),os2) + + COPY := copy + DELETE := del + CAT := type + SEP := $(BACKSLASH) + + # gcc-emx by default + CONFIG_FILE := os2-gcc.mk + + # additionally, we provide hooks for various other compilers + # + ifneq ($(findstring visualage,$(MAKECMDGOALS)),) # Visual Age C++ + CONFIG_FILE := os2-icc.mk + CC := icc + visualage: setup + .PHONY: visualage + endif + + ifneq ($(findstring watcom,$(MAKECMDGOALS)),) # Watcom C/C++ + CONFIG_FILE := os2-wat.mk + CC := wcc386 + watcom: setup + .PHONY: watcom + endif + + ifneq ($(findstring borlandc,$(MAKECMDGOALS)),) # Borland C++ 32-bit + CONFIG_FILE := os2-bcc.mk + CC := bcc32 + borlandc: setup + .PHONY: borlandc + endif + + ifneq ($(findstring devel,$(MAKECMDGOALS)),) # development target + CONFIG_FILE := os2-dev.mk + CC := gcc + devel: setup + .PHONY: devel + endif + + setup: dos_setup + +endif # test PLATFORM os2 + + +# EOF diff --git a/builds/os2/os2-def.mk b/builds/os2/os2-def.mk new file mode 100644 index 0000000..01cda92 --- /dev/null +++ b/builds/os2/os2-def.mk @@ -0,0 +1,44 @@ +# +# FreeType 2 OS/2 specific definitions +# + + +# Copyright 1996-2000, 2003, 2005, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +DELETE := del +CAT := type +SEP := $(strip \ ) +BUILD_DIR := $(TOP_DIR)/builds/os2 +PLATFORM := os2 + +# The executable file extension (for tools), *with* leading dot. +# +E := .exe + +# The directory where all library files are placed. +# +# By default, this is the same as $(OBJ_DIR); however, this can be changed +# to suit particular needs. +# +LIB_DIR := $(OBJ_DIR) + +# The name of the final library file. Note that the DOS-specific Makefile +# uses a shorter (8.3) name. +# +LIBRARY := $(PROJECT) + + +# The NO_OUTPUT macro is used to ignore the output of commands. +# +NO_OUTPUT = 2> nul + + +# EOF diff --git a/builds/os2/os2-dev.mk b/builds/os2/os2-dev.mk new file mode 100644 index 0000000..83da8de --- /dev/null +++ b/builds/os2/os2-dev.mk @@ -0,0 +1,30 @@ +# +# FreeType 2 configuration rules for OS/2 + GCC +# +# Development version without optimizations. +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +DEVEL_DIR := $(TOP_DIR)/devel + +# include OS/2-specific definitions +include $(TOP_DIR)/builds/os2/os2-def.mk + +# include gcc-specific definitions +include $(TOP_DIR)/builds/compiler/gcc-dev.mk + +# include linking instructions +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/os2/os2-gcc.mk b/builds/os2/os2-gcc.mk new file mode 100644 index 0000000..446073e --- /dev/null +++ b/builds/os2/os2-gcc.mk @@ -0,0 +1,26 @@ +# +# FreeType 2 configuration rules for the OS/2 + gcc +# + + +# Copyright 1996-2000 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# include OS/2-specific definitions +include $(TOP_DIR)/builds/os2/os2-def.mk + +# include gcc-specific definitions +include $(TOP_DIR)/builds/compiler/gcc.mk + +# include linking instructions +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/symbian/bld.inf b/builds/symbian/bld.inf new file mode 100644 index 0000000..dd5f559 --- /dev/null +++ b/builds/symbian/bld.inf @@ -0,0 +1,66 @@ +// +// FreeType 2 project for the symbian platform +// + +// Copyright 2008, 2009 by +// David Turner, Robert Wilhelm, and Werner Lemberg. +// +// This file is part of the FreeType project, and may only be used, modified, +// and distributed under the terms of the FreeType project license, +// LICENSE.TXT. By continuing to use, modify, or distribute this file you +// indicate that you have read the license and understand and accept it +// fully. + +PRJ_PLATFORMS +DEFAULT + +PRJ_MMPFILES +freetype.mmp + +PRJ_EXPORTS +../../include/ft2build.h +../../include/freetype/config/ftconfig.h freetype/config/ftconfig.h +../../include/freetype/config/ftheader.h freetype/config/ftheader.h +../../include/freetype/config/ftmodule.h freetype/config/ftmodule.h +../../include/freetype/config/ftoption.h freetype/config/ftoption.h +../../include/freetype/config/ftstdlib.h freetype/config/ftstdlib.h +../../include/freetype/freetype.h freetype/freetype.h +../../include/freetype/ftbbox.h freetype/ftbbox.h +../../include/freetype/ftbdf.h freetype/ftbdf.h +../../include/freetype/ftbitmap.h freetype/ftbitmap.h +../../include/freetype/ftcache.h freetype/ftcache.h +../../include/freetype/ftcid.h freetype/ftcid.h +../../include/freetype/fterrdef.h freetype/fterrdef.h +../../include/freetype/fterrors.h freetype/fterrors.h +../../include/freetype/ftgasp.h freetype/ftgasp.h +../../include/freetype/ftglyph.h freetype/ftglyph.h +../../include/freetype/ftgxval.h freetype/ftgxval.h +../../include/freetype/ftgzip.h freetype/ftgzip.h +../../include/freetype/ftbzip2.h freetype/ftbzip2.h +../../include/freetype/ftimage.h freetype/ftimage.h +../../include/freetype/ftincrem.h freetype/ftincrem.h +../../include/freetype/ftlcdfil.h freetype/ftlcdfil.h +../../include/freetype/ftlist.h freetype/ftlist.h +../../include/freetype/ftlzw.h freetype/ftlzw.h +../../include/freetype/ftmac.h freetype/ftmac.h +../../include/freetype/ftmm.h freetype/ftmm.h +../../include/freetype/ftmodapi.h freetype/ftmodapi.h +../../include/freetype/ftmoderr.h freetype/ftmoderr.h +../../include/freetype/ftotval.h freetype/ftotval.h +../../include/freetype/ftoutln.h freetype/ftoutln.h +../../include/freetype/ftpfr.h freetype/ftpfr.h +../../include/freetype/ftrender.h freetype/ftrender.h +../../include/freetype/ftsizes.h freetype/ftsizes.h +../../include/freetype/ftsnames.h freetype/ftsnames.h +../../include/freetype/ftstroke.h freetype/ftstroke.h +../../include/freetype/ftsynth.h freetype/ftsynth.h +../../include/freetype/ftsystem.h freetype/ftsystem.h +../../include/freetype/fttrigon.h freetype/fttrigon.h +../../include/freetype/fttypes.h freetype/fttypes.h +../../include/freetype/ftwinfnt.h freetype/ftwinfnt.h +../../include/freetype/ftxf86.h freetype/ftxf86.h +../../include/freetype/t1tables.h freetype/t1tables.h +../../include/freetype/ttnameid.h freetype/ttnameid.h +../../include/freetype/tttables.h freetype/tttables.h +../../include/freetype/tttags.h freetype/tttags.h +../../include/freetype/ttunpat.h freetype/ttunpat.h diff --git a/builds/symbian/freetype.mmp b/builds/symbian/freetype.mmp new file mode 100644 index 0000000..cb0008c --- /dev/null +++ b/builds/symbian/freetype.mmp @@ -0,0 +1,147 @@ +// +// FreeType 2 makefile for the symbian platform +// + +// Copyright 2008, 2009 by +// David Turner, Robert Wilhelm, and Werner Lemberg. +// +// This file is part of the FreeType project, and may only be used, modified, +// and distributed under the terms of the FreeType project license, +// LICENSE.TXT. By continuing to use, modify, or distribute this file you +// indicate that you have read the license and understand and accept it +// fully. + +target freetype.lib +targettype lib + +macro NDEBUG +macro FT2_BUILD_LIBRARY + +sourcepath ..\..\src\autofit + +source autofit.c + +sourcepath ..\..\src\base + +source ftbase.c +source ftbbox.c +source ftbdf.c +source ftbitmap.c +source ftcid.c +source ftfstype.c +source ftgasp.c +source ftglyph.c +source ftgxval.c +source ftinit.c +source ftlcdfil.c +source ftmm.c +source ftotval.c +source ftpatent.c +source ftpfr.c +source ftstroke.c +source ftsynth.c +source ftsystem.c +source fttype1.c +source ftwinfnt.c + +sourcepath ..\..\src\bdf + +source bdf.c + +sourcepath ..\..\src\cache + +source ftcache.c + +sourcepath ..\..\src\cff + +source cff.c + +sourcepath ..\..\src\cid + +source type1cid.c + +sourcepath ..\..\src\gzip + +source ftgzip.c + +sourcepath ..\..\src\bzip2 + +source ftbzip2.c + +sourcepath ..\..\src\lzw + +source ftlzw.c + +sourcepath ..\..\src\pcf + +source pcf.c + +sourcepath ..\..\src\pfr + +source pfr.c + +sourcepath ..\..\src\psaux + +source psaux.c + +sourcepath ..\..\src\pshinter + +source pshinter.c + +sourcepath ..\..\src\psnames + +source psmodule.c + +sourcepath ..\..\src\raster + +source raster.c + +sourcepath ..\..\src\sfnt + +source sfnt.c + +sourcepath ..\..\src\smooth + +source smooth.c + +sourcepath ..\..\src\truetype + +source truetype.c + +sourcepath ..\..\src\type1 + +source type1.c + +sourcepath ..\..\src\type42 + +source type42.c + +sourcepath ..\..\src\winfonts + +source winfnt.c + + +systeminclude ..\..\include +systeminclude \epoc32\include\stdapis +userinclude ..\..\src\autofit +userinclude ..\..\src\bdf +userinclude ..\..\src\cache +userinclude ..\..\src\cff +userinclude ..\..\src\cid +userinclude ..\..\src\gxvalid +userinclude ..\..\src\gzip +userinclude ..\..\src\bzip2 +userinclude ..\..\src\lzw +userinclude ..\..\src\otvalid +userinclude ..\..\src\pcf +userinclude ..\..\src\pfr +userinclude ..\..\src\psaux +userinclude ..\..\src\pshinter +userinclude ..\..\src\psnames +userinclude ..\..\src\raster +userinclude ..\..\src\sfnt +userinclude ..\..\src\smooth +userinclude ..\..\src\truetype +userinclude ..\..\src\type1 +userinclude ..\..\src\type42 +userinclude ..\..\src\winfonts diff --git a/builds/toplevel.mk b/builds/toplevel.mk new file mode 100644 index 0000000..18bcef2 --- /dev/null +++ b/builds/toplevel.mk @@ -0,0 +1,257 @@ +# +# FreeType build system -- top-level sub-Makefile +# + + +# Copyright 1996-2000, 2001, 2003, 2006, 2008, 2009, 2010 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# This file is designed for GNU Make, do not use it with another Make tool! +# +# It works as follows: +# +# - When invoked for the first time, this Makefile includes the rules found +# in `PROJECT/builds/detect.mk'. They are in charge of detecting the +# current platform. +# +# A summary of the detection is displayed, and the file `config.mk' is +# created in the current directory. +# +# - When invoked later, this Makefile includes the rules found in +# `config.mk'. This sub-Makefile defines some system-specific variables +# (like compiler, compilation flags, object suffix, etc.), then includes +# the rules found in `PROJECT/builds/PROJECT.mk', used to build the +# library. +# +# See the comments in `builds/detect.mk' and `builds/PROJECT.mk' for more +# details on host platform detection and library builds. + + +# First of all, check whether we have `$(value ...)'. We do this by testing +# for `$(eval ...)' which has been introduced in the same GNU make version. + +eval_available := +$(eval eval_available := T) +ifneq ($(eval_available),T) + $(error FreeType's build system needs a Make program which supports $$(value)) +endif + + +.PHONY: all dist distclean modules setup + + +# The `space' variable is used to avoid trailing spaces in defining the +# `T' variable later. +# +empty := +space := $(empty) $(empty) + + +# The main configuration file, defining the `XXX_MODULES' variables. We +# prefer a `modules.cfg' file in OBJ_DIR over TOP_DIR. +# +ifndef MODULES_CFG + MODULES_CFG := $(TOP_DIR)/modules.cfg + ifneq ($(wildcard $(OBJ_DIR)/modules.cfg),) + MODULES_CFG := $(OBJ_DIR)/modules.cfg + endif +endif + + +# FTMODULE_H, as its name suggests, indicates where the FreeType module +# class file resides. +# +FTMODULE_H ?= $(OBJ_DIR)/ftmodule.h + + +include $(MODULES_CFG) + + +# The list of modules we are using. +# +MODULES := $(FONT_MODULES) \ + $(HINTING_MODULES) \ + $(RASTER_MODULES) \ + $(AUX_MODULES) + + +CONFIG_MK ?= config.mk + +# If no configuration sub-makefile is present, or if `setup' is the target +# to be built, run the auto-detection rules to figure out which +# configuration rules file to use. +# +# Note that the configuration file is put in the current directory, which is +# not necessarily $(TOP_DIR). + +# If `config.mk' is not present, set `check_platform'. +# +ifeq ($(wildcard $(CONFIG_MK)),) + check_platform := 1 +endif + +# If `setup' is one of the targets requested, set `check_platform'. +# +ifneq ($(findstring setup,$(MAKECMDGOALS)),) + check_platform := 1 +endif + +# Include the automatic host platform detection rules when we need to +# check the platform. +# +ifdef check_platform + + all modules: setup + + include $(TOP_DIR)/builds/detect.mk + + # This rule makes sense for Unix only to remove files created by a run + # of the configure script which hasn't been successful (so that no + # `config.mk' has been created). It uses the built-in $(RM) command of + # GNU make. Similarly, `nul' is created if e.g. `make setup win32' has + # been erroneously used. + # + # Note: This test is duplicated in `builds/unix/detect.mk'. + # + is_unix := $(strip $(wildcard /sbin/init) \ + $(wildcard /usr/sbin/init) \ + $(wildcard /dev/null) \ + $(wildcard /hurd/auth)) + ifneq ($(is_unix),) + + distclean: + $(RM) builds/unix/config.cache + $(RM) builds/unix/config.log + $(RM) builds/unix/config.status + $(RM) builds/unix/unix-def.mk + $(RM) builds/unix/unix-cc.mk + $(RM) builds/unix/freetype2.pc + $(RM) nul + + endif # test is_unix + + # IMPORTANT: + # + # `setup' must be defined by the host platform detection rules to create + # the `config.mk' file in the current directory. + +else + + # A configuration sub-Makefile is present -- simply run it. + # + all: single + + BUILD_PROJECT := yes + include $(CONFIG_MK) + +endif # test check_platform + + +# We always need the list of modules in ftmodule.h. +# +all setup: $(FTMODULE_H) + + +# The `modules' target unconditionally rebuilds the module list. +# +modules: + $(FTMODULE_H_INIT) + $(FTMODULE_H_CREATE) + $(FTMODULE_H_DONE) + +include $(TOP_DIR)/builds/modules.mk + + +# This target builds the tarballs. +# +# Not to be run by a normal user -- there are no attempts to make it +# generic. + +# we check for `dist', not `distclean' +ifneq ($(findstring distx,$(MAKECMDGOALS)x),) + FT_H := include/freetype/freetype.h + + major := $(shell sed -n 's/.*FREETYPE_MAJOR[^0-9]*\([0-9]\+\)/\1/p' < $(FT_H)) + minor := $(shell sed -n 's/.*FREETYPE_MINOR[^0-9]*\([0-9]\+\)/\1/p' < $(FT_H)) + patch := $(shell sed -n 's/.*FREETYPE_PATCH[^0-9]*\([0-9]\+\)/\1/p' < $(FT_H)) + + version := $(major).$(minor).$(patch) + winversion := $(major)$(minor)$(patch) +endif + +dist: + -rm -rf tmp + rm -f freetype-$(version).tar.gz + rm -f freetype-$(version).tar.bz2 + rm -f ft$(winversion).zip + + for d in `find . -wholename '*/.git' -prune \ + -o -type f \ + -o -print` ; do \ + mkdir -p tmp/$$d ; \ + done ; + + currdir=`pwd` ; \ + for f in `find . -wholename '*/.git' -prune \ + -o -name .gitignore \ + -o -type d \ + -o -print` ; do \ + ln -s $$currdir/$$f tmp/$$f ; \ + done + + @# Prevent generation of .pyc files. Python follows (soft) links if + @# the link's directory is write protected, so we have temporarily + @# disable write access here too. + chmod -w src/tools/docmaker + + cd tmp ; \ + $(MAKE) devel ; \ + $(MAKE) do-dist + + chmod +w src/tools/docmaker + + mv tmp freetype-$(version) + + tar cfh - freetype-$(version) \ + | gzip -9 -c > freetype-$(version).tar.gz + tar cfh - freetype-$(version) \ + | bzip2 -c > freetype-$(version).tar.bz2 + + @# Use CR/LF for zip files. + zip -lr9 ft$(winversion).zip freetype-$(version) + + rm -fr freetype-$(version) + + +# The locations of the latest `config.guess' and `config.sub' versions (from +# GNU `config' git repository), relative to the `tmp' directory used during +# `make dist'. +# +CONFIG_GUESS = ~/git/config/config.guess +CONFIG_SUB = ~/git/config/config.sub + + +# Don't say `make do-dist'. Always use `make dist' instead. +# +.PHONY: do-dist + +do-dist: distclean refdoc + @# Without removing the files, `autoconf' and friends follow links. + rm -f builds/unix/aclocal.m4 + rm -f builds/unix/configure.ac + rm -f builds/unix/configure + + sh autogen.sh + rm -rf builds/unix/autom4te.cache + + cp $(CONFIG_GUESS) builds/unix + cp $(CONFIG_SUB) builds/unix + +# EOF diff --git a/builds/unix/.gitignore b/builds/unix/.gitignore new file mode 100644 index 0000000..86b8c40 --- /dev/null +++ b/builds/unix/.gitignore @@ -0,0 +1,16 @@ +aclocal.m4 +autom4te.cache +config.cache +config.guess +config.log +config.status +config.sub +configure +configure.ac +freetype2.pc +freetype-config +ftconfig.h +libtool +ltmain.sh +unix-cc.mk +unix-def.mk diff --git a/builds/unix/configure.raw b/builds/unix/configure.raw new file mode 100644 index 0000000..111dbab --- /dev/null +++ b/builds/unix/configure.raw @@ -0,0 +1,707 @@ +# This file is part of the FreeType project. +# +# Process this file with autoconf to produce a configure script. +# +# Copyright 2001-2012 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +AC_INIT([FreeType], [@VERSION@], [freetype@nongnu.org], [freetype]) +AC_CONFIG_SRCDIR([ftconfig.in]) + + +# Don't forget to update docs/VERSION.DLL! + +version_info='14:1:8' +AC_SUBST([version_info]) +ft_version=`echo $version_info | tr : .` +AC_SUBST([ft_version]) + + +# checks for system type + +AC_CANONICAL_HOST + + +# checks for programs + +AC_PROG_CC +AC_PROG_CPP +AC_SUBST(EXEEXT) + + +# checks for native programs to generate building tool + +if test ${cross_compiling} = yes; then + AC_CHECK_PROG(CC_BUILD, ${build}-gcc, ${build}-gcc) + test -z "${CC_BUILD}" && AC_CHECK_PROG(CC_BUILD, gcc, gcc) + test -z "${CC_BUILD}" && AC_CHECK_PROG(CC_BUILD, cc, cc, , , /usr/ucb/cc) + test -z "${CC_BUILD}" && AC_MSG_ERROR([cannot find native C compiler]) + + AC_MSG_CHECKING([for suffix of native executables]) + rm -f a.* b.* a_out.exe conftest.* + echo > conftest.c "int main() { return 0;}" + ${CC_BUILD} conftest.c || AC_MSG_ERROR([native C compiler is not working]) + rm -f conftest.c + if test -x a.out -o -x b.out -o -x conftest; then + EXEEXT_BUILD="" + elif test -x a_out.exe -o -x conftest.exe; then + EXEEXT_BUILD=".exe" + elif test -x conftest.*; then + EXEEXT_BUILD=`echo conftest.* | sed -n '1s/^.*\././'` + fi + rm -f a.* b.* a_out.exe conftest.* + AC_MSG_RESULT($EXEEXT_BUILD) +else + CC_BUILD=${CC} + EXEEXT_BUILD=${EXEEXT} +fi + +AC_SUBST(CC_BUILD) +AC_SUBST(EXEEXT_BUILD) + + + +# get compiler flags right + +if test "x$GCC" = xyes; then + XX_CFLAGS="-Wall" + XX_ANSIFLAGS="-pedantic -ansi" +else + case "$host" in + *-dec-osf*) + CFLAGS= + XX_CFLAGS="-std1 -g3" + XX_ANSIFLAGS= + ;; + *) + XX_CFLAGS= + XX_ANSIFLAGS= + ;; + esac +fi +AC_SUBST([XX_CFLAGS]) +AC_SUBST([XX_ANSIFLAGS]) + + +# auxiliary programs + +AC_CHECK_PROG([RMF], [rm], [rm -f]) +AC_CHECK_PROG([RMDIR], [rmdir], [rmdir]) + + +# Since this file will be finally moved to another directory we make +# the path of the install script absolute. This small code snippet has +# been taken from automake's `ylwrap' script. + +AC_PROG_INSTALL +case "$INSTALL" in +/*) + ;; +*/*) + INSTALL="`pwd`/$INSTALL" + ;; +esac + + +# checks for header files + +AC_HEADER_STDC +AC_CHECK_HEADERS([fcntl.h unistd.h]) + + +# checks for typedefs, structures, and compiler characteristics + +AC_C_CONST +AC_CHECK_SIZEOF([int]) +AC_CHECK_SIZEOF([long]) + + +# check whether cpp computation of size of int and long in ftconfig.in works + +AC_MSG_CHECKING([whether cpp computation of bit length in ftconfig.in works]) +orig_CPPFLAGS="${CPPFLAGS}" +CPPFLAGS="-I${srcdir} -I. ${CPPFLAGS}" +ac_clean_files="ft2build.h ftoption.h ftstdlib.h" +touch ft2build.h ftoption.h ftstdlib.h + +cat > conftest.c <<\_ACEOF +#include +#define FT_CONFIG_OPTIONS_H "ftoption.h" +#define FT_CONFIG_STANDARD_LIBRARY_H "ftstdlib.h" +#define FT_UINT_MAX UINT_MAX +#define FT_ULONG_MAX ULONG_MAX +#include "ftconfig.in" +_ACEOF +echo >> conftest.c "#if FT_SIZEOF_INT == "${ac_cv_sizeof_int} +echo >> conftest.c "ac_cpp_ft_sizeof_int="${ac_cv_sizeof_int} +echo >> conftest.c "#endif" +echo >> conftest.c "#if FT_SIZEOF_LONG == "${ac_cv_sizeof_long} +echo >> conftest.c "ac_cpp_ft_sizeof_long="${ac_cv_sizeof_long} +echo >> conftest.c "#endif" + +${CPP} ${CPPFLAGS} conftest.c | ${GREP} ac_cpp_ft > conftest.sh +eval `cat conftest.sh` +${RMF} conftest.c conftest.sh confft2build.h ftoption.h ftstdlib.h + +if test x != "x${ac_cpp_ft_sizeof_int}" \ + -a x != x"${ac_cpp_ft_sizeof_long}"; then + unset ft_use_autoconf_sizeof_types +else + ft_use_autoconf_sizeof_types=yes +fi + +AC_ARG_ENABLE(biarch-config, +[ --enable-biarch-config install biarch ftconfig.h to support multiple + architectures by single file], [], []) + +case :${ft_use_autoconf_sizeof_types}:${enable_biarch_config}: in + :yes:yes:) + AC_MSG_RESULT([broken but use it]) + unset ft_use_autoconf_sizeof_types + ;; + ::no:) + AC_MSG_RESULT([works but ignore it]) + ft_use_autoconf_sizeof_types=yes + ;; + ::yes: | :::) + AC_MSG_RESULT([yes]) + unset ft_use_autoconf_sizeof_types + ;; + *) + AC_MSG_RESULT([no]) + ft_use_autoconf_sizeof_types=yes + ;; +esac + +if test x"${ft_use_autoconf_sizeof_types}" = xyes; then + AC_DEFINE([FT_USE_AUTOCONF_SIZEOF_TYPES]) +fi + +CPPFLAGS="${orig_CPPFLAGS}" + + +# checks for library functions + +# Here we check whether we can use our mmap file component. + +AC_ARG_ENABLE([mmap], + AS_HELP_STRING([--disable-mmap], + [do not check mmap() and do not use]), + [enable_mmap="no"],[enable_mmap="yes"]) +if test "x${enable_mmap}" != "xno"; then + AC_FUNC_MMAP +fi +if test "x${enable_mmap}" = "xno" \ + -o "$ac_cv_func_mmap_fixed_mapped" != "yes"; then + FTSYS_SRC='$(BASE_DIR)/ftsystem.c' +else + FTSYS_SRC='$(BUILD_DIR)/ftsystem.c' + + AC_CHECK_DECLS([munmap], + [], + [], + [ + +#ifdef HAVE_UNISTD_H +#include +#endif +#include + + ]) + + FT_MUNMAP_PARAM +fi +AC_SUBST([FTSYS_SRC]) + +AC_CHECK_FUNCS([memcpy memmove]) + + +# check for system zlib + +# don't quote AS_HELP_STRING! +AC_ARG_WITH([zlib], + AS_HELP_STRING([--without-zlib], + [use internal zlib instead of system-wide])) +if test x$with_zlib != xno && test -z "$LIBZ"; then + AC_CHECK_LIB([z], [gzsetparams], [AC_CHECK_HEADER([zlib.h], [LIBZ='-lz'])]) +fi +if test x$with_zlib != xno && test -n "$LIBZ"; then + CFLAGS="$CFLAGS -DFT_CONFIG_OPTION_SYSTEM_ZLIB" + LDFLAGS="$LDFLAGS $LIBZ" + SYSTEM_ZLIB=yes +fi + +# check for system libbz2 + +# don't quote AS_HELP_STRING! +AC_ARG_WITH([bzip2], + AS_HELP_STRING([--without-bzip2], + [do not support bzip2 compressed fonts])) +if test x$with_bzip2 != xno && test -z "$LIBBZ2"; then + AC_CHECK_LIB([bz2], [BZ2_bzDecompress], [AC_CHECK_HEADER([bzlib.h], [LIBBZ2='-lbz2'])]) +fi +if test x$with_bzip2 != xno && test -n "$LIBBZ2"; then + CFLAGS="$CFLAGS -DFT_CONFIG_OPTION_USE_BZIP2" + LDFLAGS="$LDFLAGS $LIBBZ2" +fi + +# Some options handling SDKs/archs in CFLAGS should be copied +# to LDFLAGS. Apple TechNote 2137 recommends to include these +# options in CFLAGS but not in LDFLAGS. + +save_config_args=$* +set dummy ${CFLAGS} +i=1 +while test $i -le $# +do + c=$1 + + case "${c}" in + -isysroot|-arch) # options taking 1 argument + a=$2 + AC_MSG_CHECKING([whether CFLAGS and LDFLAGS share ${c} ${a}]) + if expr " ${LDFLAGS} " : ".* ${c} *${a}.*" > /dev/null + then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no, copy to LDFLAGS]) + LDFLAGS="${LDFLAGS} ${c} ${a}" + fi + shift 1 + ;; + -m32|-m64|-march=*|-mcpu=*) # options taking no argument + AC_MSG_RESULT([whether CFLAGS and LDFLAGS share ${c}]) + if expr " ${LDFLAGS} " : ".* ${c} *${a}.*" > /dev/null + then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no, copy to LDFLAGS]) + LDFLAGS="${LDFLAGS} ${c}" + fi + ;; + # *) + # AC_MSG_RESULT([${c} is not copied to LDFLAGS]) + # ;; + esac + + shift 1 +done +set ${save_config_args} + + +# Whether to use Mac OS resource-based fonts. + +ftmac_c="" # src/base/ftmac.c should not be included in makefiles by default + +# don't quote AS_HELP_STRING! +AC_ARG_WITH([old-mac-fonts], + AS_HELP_STRING([--with-old-mac-fonts], + [allow Mac resource-based fonts to be used])) +if test x$with_old_mac_fonts = xyes; then + orig_LDFLAGS="${LDFLAGS}" + AC_MSG_CHECKING([CoreServices & ApplicationServices of Mac OS X]) + FT2_EXTRA_LIBS="-Wl,-framework,CoreServices -Wl,-framework,ApplicationServices" + LDFLAGS="$LDFLAGS $FT2_EXTRA_LIBS" + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([ + +#if defined(__GNUC__) && defined(__APPLE_CC__) +# include +# include +#else +# include +# include +#endif + + ], + [ + + short res = 0; + + + UseResFile( res ); + + ])], + [AC_MSG_RESULT([ok]) + ftmac_c='ftmac.c' + AC_MSG_CHECKING([whether OS_INLINE macro is ANSI compatible]) + orig_CFLAGS="$CFLAGS -DFT_MACINTOSH" + CFLAGS="$CFLAGS $XX_CFLAGS $XX_ANSIFLAGS" + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([ + +#if defined(__GNUC__) && defined(__APPLE_CC__) +# include +# include +#else +# include +# include +#endif + + ], + [ + + /* OSHostByteOrder() is typed as OS_INLINE */ + int32_t os_byte_order = OSHostByteOrder(); + + + if ( OSBigEndian != os_byte_order ) + return 1; + + ])], + [AC_MSG_RESULT([ok]) + CFLAGS="$orig_CFLAGS" + CFLAGS="$CFLAGS -DHAVE_ANSI_OS_INLINE=1" + ], + [AC_MSG_RESULT([no, ANSI incompatible]) + CFLAGS="$orig_CFLAGS" + ]) + AC_MSG_CHECKING([type ResourceIndex]) + orig_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $XX_CFLAGS $XX_ANSIFLAGS" + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([ + +#if defined(__GNUC__) && defined(__APPLE_CC__) +# include +# include +#else +# include +# include +# include +#endif + + ], + [ + + ResourceIndex i = 0; + return i; + + ])], + [AC_MSG_RESULT([ok]) + CFLAGS="$orig_CFLAGS" + CFLAGS="$CFLAGS -DHAVE_TYPE_RESOURCE_INDEX=1" + ], + [AC_MSG_RESULT([no]) + CFLAGS="$orig_CFLAGS" + CFLAGS="$CFLAGS -DHAVE_TYPE_RESOURCE_INDEX=0" + ])], + [AC_MSG_RESULT([not found]) + FT2_EXTRA_LIBS="" + LDFLAGS="${orig_LDFLAGS}" + CFLAGS="$CFLAGS -DDARWIN_NO_CARBON"]) +else + case x$host_os in + xdarwin*) + dnl AC_MSG_WARN([host system is MacOS but configured to build without Carbon]) + CFLAGS="$CFLAGS -DDARWIN_NO_CARBON" + ;; + *) + ;; + esac +fi + + +# Whether to use FileManager which is deprecated since Mac OS X 10.4. + +AC_ARG_WITH([fsspec], + AS_HELP_STRING([--with-fsspec], + [use obsolete FSSpec API of MacOS, if available (default=yes)])) +if test x$with_fsspec = xno; then + CFLAGS="$CFLAGS -DHAVE_FSSPEC=0" +elif test x$with_old_mac_fonts = xyes -a x$with_fsspec != x; then + AC_MSG_CHECKING([FSSpec-based FileManager]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([ + +#if defined(__GNUC__) && defined(__APPLE_CC__) +# include +# include +#else +# include +# include +#endif + + ], + [ + + FCBPBPtr paramBlock; + short vRefNum; + long dirID; + ConstStr255Param fileName; + FSSpec* spec; + + + /* FSSpec functions: deprecated since Mac OS X 10.4 */ + PBGetFCBInfoSync( paramBlock ); + FSMakeFSSpec( vRefNum, dirID, fileName, spec ); + + ])], + [AC_MSG_RESULT([ok]) + CFLAGS="$CFLAGS -DHAVE_FSSPEC=1"], + [AC_MSG_RESULT([not found]) + CFLAGS="$CFLAGS -DHAVE_FSSPEC=0"]) +fi + + +# Whether to use FileManager in Carbon since MacOS 9.x. + +AC_ARG_WITH([fsref], + AS_HELP_STRING([--with-fsref], + [use Carbon FSRef API of MacOS, if available (default=yes)])) +if test x$with_fsref = xno; then + AC_MSG_WARN([ +*** WARNING + FreeType2 built without FSRef API cannot load + data-fork fonts on MacOS, except of XXX.dfont. + ]) + CFLAGS="$CFLAGS -DHAVE_FSREF=0" +elif test x$with_old_mac_fonts = xyes -a x$with_fsref != x; then + AC_MSG_CHECKING([FSRef-based FileManager]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([ + +#if defined(__GNUC__) && defined(__APPLE_CC__) +# include +# include +#else +# include +# include +#endif + + ], + [ + + short vRefNum; + long dirID; + ConstStr255Param fileName; + + Boolean* isDirectory; + UInt8* path; + SInt16 desiredRefNum; + SInt16* iterator; + SInt16* actualRefNum; + HFSUniStr255* outForkName; + FSVolumeRefNum volume; + FSCatalogInfoBitmap whichInfo; + FSCatalogInfo* catalogInfo; + FSForkInfo* forkInfo; + FSRef* ref; + +#if HAVE_FSSPEC + FSSpec* spec; +#endif + + /* FSRef functions: no need to check? */ + FSGetForkCBInfo( desiredRefNum, volume, iterator, + actualRefNum, forkInfo, ref, + outForkName ); + FSPathMakeRef( path, ref, isDirectory ); + +#if HAVE_FSSPEC + FSpMakeFSRef ( spec, ref ); + FSGetCatalogInfo( ref, whichInfo, catalogInfo, + outForkName, spec, ref ); +#endif + ])], + [AC_MSG_RESULT([ok]) + CFLAGS="$CFLAGS -DHAVE_FSREF=1"], + [AC_MSG_RESULT([not found]) + CFLAGS="$CFLAGS -DHAVE_FSREF=0"]) +fi + + +# Whether to use QuickDraw API in ToolBox which is deprecated since +# Mac OS X 10.4. + +AC_ARG_WITH([quickdraw-toolbox], + AS_HELP_STRING([--with-quickdraw-toolbox], + [use MacOS QuickDraw in ToolBox, if available (default=yes)])) +if test x$with_quickdraw_toolbox = xno; then + CFLAGS="$CFLAGS -DHAVE_QUICKDRAW_TOOLBOX=0" +elif test x$with_old_mac_fonts = xyes -a x$with_quickdraw_toolbox != x; then + AC_MSG_CHECKING([QuickDraw FontManager functions in ToolBox]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([ + +#if defined(__GNUC__) && defined(__APPLE_CC__) +# include +# include +#else +# include +# include +#endif + + ], + [ + + Str255 familyName; + SInt16 familyID = 0; + FMInput* fmIn = NULL; + FMOutput* fmOut = NULL; + + + GetFontName( familyID, familyName ); + GetFNum( familyName, &familyID ); + fmOut = FMSwapFont( fmIn ); + + ])], + [AC_MSG_RESULT([ok]) + CFLAGS="$CFLAGS -DHAVE_QUICKDRAW_TOOLBOX=1"], + [AC_MSG_RESULT([not found]) + CFLAGS="$CFLAGS -DHAVE_QUICKDRAW_TOOLBOX=0"]) +fi + + +# Whether to use QuickDraw API in Carbon which is deprecated since +# Mac OS X 10.4. + +AC_ARG_WITH([quickdraw-carbon], + AS_HELP_STRING([--with-quickdraw-carbon], + [use MacOS QuickDraw in Carbon, if available (default=yes)])) +if test x$with_quickdraw_carbon = xno; then + CFLAGS="$CFLAGS -DHAVE_QUICKDRAW_CARBON=0" +elif test x$with_old_mac_fonts = xyes -a x$with_quickdraw_carbon != x; then + AC_MSG_CHECKING([QuickDraw FontManager functions in Carbon]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([ + +#if defined(__GNUC__) && defined(__APPLE_CC__) +# include +# include +#else +# include +# include +#endif + + ], + [ + + FMFontFamilyIterator famIter; + FMFontFamily family; + Str255 famNameStr; + FMFontFamilyInstanceIterator instIter; + FMFontStyle style; + FMFontSize size; + FMFont font; + FSSpec* pathSpec; + + + FMCreateFontFamilyIterator( NULL, NULL, kFMUseGlobalScopeOption, + &famIter ); + FMGetNextFontFamily( &famIter, &family ); + FMGetFontFamilyName( family, famNameStr ); + FMCreateFontFamilyInstanceIterator( family, &instIter ); + FMGetNextFontFamilyInstance( &instIter, &font, &style, &size ); + FMDisposeFontFamilyInstanceIterator( &instIter ); + FMDisposeFontFamilyIterator( &famIter ); + FMGetFontContainer( font, pathSpec ); + + ])], + [AC_MSG_RESULT([ok]) + CFLAGS="$CFLAGS -DHAVE_QUICKDRAW_CARBON=1"], + [AC_MSG_RESULT([not found]) + CFLAGS="$CFLAGS -DHAVE_QUICKDRAW_CARBON=0"]) +fi + + +# Whether to use AppleTypeService since Mac OS X. + +# don't quote AS_HELP_STRING! +AC_ARG_WITH([ats], + AS_HELP_STRING([--with-ats], + [use AppleTypeService, if available (default=yes)])) +if test x$with_ats = xno; then + CFLAGS="$CFLAGS -DHAVE_ATS=0" +elif test x$with_old_mac_fonts = xyes -a x$with_ats != x; then + AC_MSG_CHECKING([AppleTypeService functions]) + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([ + +#if defined(__GNUC__) && defined(__APPLE_CC__) +# include +# include +#else +# include +# include +#endif + + ], + [ + + FSSpec* pathSpec; + + + ATSFontFindFromName( NULL, kATSOptionFlagsUnRestrictedScope ); +#if HAVE_FSSPEC + ATSFontGetFileSpecification( 0, pathSpec ); +#endif + + ])], + [AC_MSG_RESULT([ok]) + CFLAGS="$CFLAGS -DHAVE_ATS=1"], + [AC_MSG_RESULT([not found]) + CFLAGS="$CFLAGS -DHAVE_ATS=0"]) +fi + +case "$CFLAGS" in + *HAVE_FSSPEC* | *HAVE_FSREF* | *HAVE_QUICKDRAW* | *HAVE_ATS* ) + AC_MSG_WARN([ +*** WARNING + FSSpec/FSRef/QuickDraw/ATS options are explicitly given, + thus it is recommended to replace src/base/ftmac.c by builds/mac/ftmac.c. + ]) + CFLAGS="$CFLAGS "'-I$(TOP_DIR)/builds/mac/' + ;; + *) + ;; +esac + + +AC_SUBST([ftmac_c]) +AC_SUBST([LIBZ]) +AC_SUBST([LIBBZ2]) +AC_SUBST([CFLAGS]) +AC_SUBST([LDFLAGS]) +AC_SUBST([FT2_EXTRA_LIBS]) +AC_SUBST([SYSTEM_ZLIB]) + + +LT_INIT(win32-dll) + +AC_SUBST([hardcode_libdir_flag_spec]) +AC_SUBST([wl]) +AC_SUBST([build_libtool_libs]) + + +# configuration file -- stay in 8.3 limit +# +# since #undef doesn't survive in configuration header files we replace +# `/undef' with `#undef' after creating the output file + +AC_CONFIG_HEADERS([ftconfig.h:ftconfig.in], + [mv ftconfig.h ftconfig.tmp + sed 's|/undef|#undef|' < ftconfig.tmp > ftconfig.h + rm ftconfig.tmp]) + +# create the Unix-specific sub-Makefiles `builds/unix/unix-def.mk' +# and `builds/unix/unix-cc.mk' that will be used by the build system +# +AC_CONFIG_FILES([unix-cc.mk:unix-cc.in + unix-def.mk:unix-def.in + freetype-config + freetype2.pc:freetype2.in]) + +# re-generate the Jamfile to use libtool now +# +# AC_CONFIG_FILES([../../Jamfile:../../Jamfile.in]) + +AC_OUTPUT + +# end of configure.raw diff --git a/builds/unix/detect.mk b/builds/unix/detect.mk new file mode 100644 index 0000000..b2ae4f4 --- /dev/null +++ b/builds/unix/detect.mk @@ -0,0 +1,92 @@ +# +# FreeType 2 configuration file to detect a UNIX host platform. +# + + +# Copyright 1996-2000, 2002, 2003, 2004, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +.PHONY: setup + +ifeq ($(PLATFORM),ansi) + + # Note: this test is duplicated in "builds/toplevel.mk". + # + is_unix := $(strip $(wildcard /sbin/init) \ + $(wildcard /usr/sbin/init) \ + $(wildcard /dev/null) \ + $(wildcard /hurd/auth)) + ifneq ($(is_unix),) + + PLATFORM := unix + + endif # test is_unix +endif # test PLATFORM ansi + +ifeq ($(PLATFORM),unix) + COPY := cp + DELETE := rm -f + CAT := cat + + # If `devel' is the requested target, we use a special configuration + # file named `unix-dev.mk'. It disables optimization and libtool. + # + ifneq ($(findstring devel,$(MAKECMDGOALS)),) + CONFIG_FILE := unix-dev.mk + CC := gcc + devel: setup + .PHONY: devel + else + + # If `lcc' is the requested target, we use a special configuration + # file named `unix-lcc.mk'. It disables libtool for LCC. + # + ifneq ($(findstring lcc,$(MAKECMDGOALS)),) + CONFIG_FILE := unix-lcc.mk + CC := lcc + lcc: setup + .PHONY: lcc + else + + # If a Unix platform is detected, the configure script is called and + # `unix-def.mk' together with `unix-cc.mk' is created. + # + # Arguments to `configure' should be in the CFG variable. Example: + # + # make CFG="--prefix=/usr --disable-static" + # + # If you need to set CFLAGS or LDFLAGS, do it here also. + # + # Feel free to add support for other platform specific compilers in + # this directory (e.g. solaris.mk + changes here to detect the + # platform). + # + CONFIG_FILE := unix.mk + unix: setup + must_configure := 1 + .PHONY: unix + endif + endif + + have_Makefile := $(wildcard $(OBJ_DIR)/Makefile) + + setup: std_setup + ifdef must_configure + ifneq ($(have_Makefile),) + # we are building FT2 not in the src tree + $(TOP_DIR)/builds/unix/configure $(value CFG) + else + cd builds/unix; ./configure $(value CFG) + endif + endif + +endif # test PLATFORM unix + + +# EOF diff --git a/builds/unix/freetype-config.in b/builds/unix/freetype-config.in new file mode 100644 index 0000000..815367b --- /dev/null +++ b/builds/unix/freetype-config.in @@ -0,0 +1,160 @@ +#! /bin/sh +# +# Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +prefix=@prefix@ +exec_prefix=@exec_prefix@ +exec_prefix_set=no +includedir=@includedir@ +libdir=@libdir@ +enable_shared=@build_libtool_libs@ +wl=@wl@ +hardcode_libdir_flag_spec='@hardcode_libdir_flag_spec@' + +usage() +{ + cat <&2 +fi + +while test $# -gt 0 ; do + case "$1" in + -*=*) + optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` + ;; + *) + optarg= + ;; + esac + + case $1 in + --prefix=*) + prefix=$optarg + local_prefix=yes + ;; + --prefix) + echo_prefix=yes + ;; + --exec-prefix=*) + exec_prefix=$optarg + exec_prefix_set=yes + local_prefix=yes + ;; + --exec-prefix) + echo_exec_prefix=yes + ;; + --version) + echo @ft_version@ + exit 0 + ;; + --ftversion) + echo_ft_version=yes + ;; + --cflags) + echo_cflags=yes + ;; + --libs) + echo_libs=yes + ;; + --libtool) + echo_libtool=yes + ;; + *) + usage 1 1>&2 + ;; + esac + shift +done + +if test "$local_prefix" = "yes" ; then + if test "$exec_prefix_set" != "yes" ; then + exec_prefix=$prefix + fi +fi + +if test "$echo_prefix" = "yes" ; then + echo ${SYSROOT}$prefix +fi + +if test "$echo_exec_prefix" = "yes" ; then + echo ${SYSROOT}$exec_prefix +fi + +if test "$exec_prefix_set" = "yes" ; then + libdir=$exec_prefix/lib +else + if test "$local_prefix" = "yes" ; then + includedir=$prefix/include + libdir=$prefix/lib + fi +fi + +if test "$echo_ft_version" = "yes" ; then + major=`grep define ${SYSROOT}$includedir/freetype2/freetype/freetype.h \ + | grep FREETYPE_MAJOR \ + | sed 's/.*[ ]\([0-9][0-9]*\).*/\1/'` + minor=`grep define ${SYSROOT}$includedir/freetype2/freetype/freetype.h \ + | grep FREETYPE_MINOR \ + | sed 's/.*[ ]\([0-9][0-9]*\).*/\1/'` + patch=`grep define ${SYSROOT}$includedir/freetype2/freetype/freetype.h \ + | grep FREETYPE_PATCH \ + | sed 's/.*[ ]\([0-9][0-9]*\).*/\1/'` + echo $major.$minor.$patch +fi + +if test "$echo_cflags" = "yes" ; then + cflags="-I${SYSROOT}$includedir/freetype2" + if test "${SYSROOT}$includedir" != "/usr/include" ; then + echo $cflags -I${SYSROOT}$includedir + else + echo $cflags + fi +fi + +if test "$echo_libs" = "yes" ; then + rpath= + if test "$enable_shared" = "yes" ; then + eval "rpath=\"$hardcode_libdir_flag_spec\"" + fi + libs="-lfreetype @LIBZ@ @LIBBZ2@ @FT2_EXTRA_LIBS@" + if test "${SYSROOT}$libdir" != "/usr/lib" && test "${SYSROOT}$libdir" != "/usr/lib64"; then + echo -L${SYSROOT}$libdir $libs + else + echo $libs + fi +fi + +if test "$echo_libtool" = "yes" ; then + convlib="libfreetype.la" + echo ${SYSROOT}$libdir/$convlib +fi + +# EOF diff --git a/builds/unix/freetype2.in b/builds/unix/freetype2.in new file mode 100644 index 0000000..b731800 --- /dev/null +++ b/builds/unix/freetype2.in @@ -0,0 +1,12 @@ +prefix=@prefix@ +exec_prefix=@exec_prefix@ +libdir=@libdir@ +includedir=@includedir@ + +Name: FreeType 2 +Description: A free, high-quality, and portable font engine. +Version: @ft_version@ +Requires: +Libs: -L${libdir} -lfreetype +Libs.private: @LIBZ@ @LIBBZ2@ @FT2_EXTRA_LIBS@ +Cflags: -I${includedir}/freetype2 -I${includedir} diff --git a/builds/unix/freetype2.m4 b/builds/unix/freetype2.m4 new file mode 100644 index 0000000..3d0ecb3 --- /dev/null +++ b/builds/unix/freetype2.m4 @@ -0,0 +1,194 @@ +# Configure paths for FreeType2 +# Marcelo Magallon 2001-10-26, based on gtk.m4 by Owen Taylor +# +# Copyright 2001, 2003, 2007, 2009 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. +# +# As a special exception to the FreeType project license, this file may be +# distributed as part of a program that contains a configuration script +# generated by Autoconf, under the same distribution terms as the rest of +# that program. +# +# serial 3 + +# AC_CHECK_FT2([MINIMUM-VERSION [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) +# Test for FreeType 2, and define FT2_CFLAGS and FT2_LIBS. +# MINIMUM-VERSION is what libtool reports; the default is `7.0.1' (this is +# FreeType 2.0.4). +# +AC_DEFUN([AC_CHECK_FT2], + [# Get the cflags and libraries from the freetype-config script + # + AC_ARG_WITH([ft-prefix], + dnl don't quote AS_HELP_STRING! + AS_HELP_STRING([--with-ft-prefix=PREFIX], + [Prefix where FreeType is installed (optional)]), + [ft_config_prefix="$withval"], + [ft_config_prefix=""]) + + AC_ARG_WITH([ft-exec-prefix], + dnl don't quote AS_HELP_STRING! + AS_HELP_STRING([--with-ft-exec-prefix=PREFIX], + [Exec prefix where FreeType is installed (optional)]), + [ft_config_exec_prefix="$withval"], + [ft_config_exec_prefix=""]) + + AC_ARG_ENABLE([freetypetest], + dnl don't quote AS_HELP_STRING! + AS_HELP_STRING([--disable-freetypetest], + [Do not try to compile and run a test FreeType program]), + [], + [enable_fttest=yes]) + + if test x$ft_config_exec_prefix != x ; then + ft_config_args="$ft_config_args --exec-prefix=$ft_config_exec_prefix" + if test x${FT2_CONFIG+set} != xset ; then + FT2_CONFIG=$ft_config_exec_prefix/bin/freetype-config + fi + fi + + if test x$ft_config_prefix != x ; then + ft_config_args="$ft_config_args --prefix=$ft_config_prefix" + if test x${FT2_CONFIG+set} != xset ; then + FT2_CONFIG=$ft_config_prefix/bin/freetype-config + fi + fi + + if test "x$FT2_CONFIG" = x ; then + AC_PATH_PROG([FT2_CONFIG], [freetype-config], [no]) + fi + + min_ft_version=m4_if([$1], [], [7.0.1], [$1]) + AC_MSG_CHECKING([for FreeType -- version >= $min_ft_version]) + no_ft="" + if test "$FT2_CONFIG" = "no" ; then + no_ft=yes + else + FT2_CFLAGS=`$FT2_CONFIG $ft_config_args --cflags` + FT2_LIBS=`$FT2_CONFIG $ft_config_args --libs` + ft_config_major_version=`$FT2_CONFIG $ft_config_args --version | \ + sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` + ft_config_minor_version=`$FT2_CONFIG $ft_config_args --version | \ + sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` + ft_config_micro_version=`$FT2_CONFIG $ft_config_args --version | \ + sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` + ft_min_major_version=`echo $min_ft_version | \ + sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` + ft_min_minor_version=`echo $min_ft_version | \ + sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` + ft_min_micro_version=`echo $min_ft_version | \ + sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` + if test x$enable_fttest = xyes ; then + ft_config_is_lt="" + if test $ft_config_major_version -lt $ft_min_major_version ; then + ft_config_is_lt=yes + else + if test $ft_config_major_version -eq $ft_min_major_version ; then + if test $ft_config_minor_version -lt $ft_min_minor_version ; then + ft_config_is_lt=yes + else + if test $ft_config_minor_version -eq $ft_min_minor_version ; then + if test $ft_config_micro_version -lt $ft_min_micro_version ; then + ft_config_is_lt=yes + fi + fi + fi + fi + fi + if test x$ft_config_is_lt = xyes ; then + no_ft=yes + else + ac_save_CFLAGS="$CFLAGS" + ac_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $FT2_CFLAGS" + LIBS="$FT2_LIBS $LIBS" + + # + # Sanity checks for the results of freetype-config to some extent. + # + AC_RUN_IFELSE([ + AC_LANG_SOURCE([[ + +#include +#include FT_FREETYPE_H +#include +#include + +int +main() +{ + FT_Library library; + FT_Error error; + + error = FT_Init_FreeType(&library); + + if (error) + return 1; + else + { + FT_Done_FreeType(library); + return 0; + } +} + + ]]) + ], + [], + [no_ft=yes], + [echo $ECHO_N "cross compiling; assuming OK... $ECHO_C"]) + + CFLAGS="$ac_save_CFLAGS" + LIBS="$ac_save_LIBS" + fi # test $ft_config_version -lt $ft_min_version + fi # test x$enable_fttest = xyes + fi # test "$FT2_CONFIG" = "no" + + if test x$no_ft = x ; then + AC_MSG_RESULT([yes]) + m4_if([$2], [], [:], [$2]) + else + AC_MSG_RESULT([no]) + if test "$FT2_CONFIG" = "no" ; then + AC_MSG_WARN([ + + The freetype-config script installed by FreeType 2 could not be found. + If FreeType 2 was installed in PREFIX, make sure PREFIX/bin is in + your path, or set the FT2_CONFIG environment variable to the + full path to freetype-config. + ]) + else + if test x$ft_config_is_lt = xyes ; then + AC_MSG_WARN([ + + Your installed version of the FreeType 2 library is too old. + If you have different versions of FreeType 2, make sure that + correct values for --with-ft-prefix or --with-ft-exec-prefix + are used, or set the FT2_CONFIG environment variable to the + full path to freetype-config. + ]) + else + AC_MSG_WARN([ + + The FreeType test program failed to run. If your system uses + shared libraries and they are installed outside the normal + system library path, make sure the variable LD_LIBRARY_PATH + (or whatever is appropriate for your system) is correctly set. + ]) + fi + fi + + FT2_CFLAGS="" + FT2_LIBS="" + m4_if([$3], [], [:], [$3]) + fi + + AC_SUBST([FT2_CFLAGS]) + AC_SUBST([FT2_LIBS])]) + +# end of freetype2.m4 diff --git a/builds/unix/ft-munmap.m4 b/builds/unix/ft-munmap.m4 new file mode 100644 index 0000000..68b3361 --- /dev/null +++ b/builds/unix/ft-munmap.m4 @@ -0,0 +1,32 @@ +## FreeType specific autoconf tests +# +# Copyright 2002, 2003, 2004 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +# serial 2 + +AC_DEFUN([FT_MUNMAP_PARAM], + [AC_MSG_CHECKING([for munmap's first parameter type]) + AC_COMPILE_IFELSE([ + AC_LANG_SOURCE([[ + +#include +#include +int munmap(void *, size_t); + + ]]) + ], + [AC_MSG_RESULT([void *]) + AC_DEFINE([MUNMAP_USES_VOIDP], + [], + [Define to 1 if the first argument of munmap is of type void *])], + [AC_MSG_RESULT([char *])]) + ]) + +# end of ft-munmap.m4 diff --git a/builds/unix/ft2unix.h b/builds/unix/ft2unix.h new file mode 100644 index 0000000..6a3b8d9 --- /dev/null +++ b/builds/unix/ft2unix.h @@ -0,0 +1,61 @@ +/***************************************************************************/ +/* */ +/* ft2build.h */ +/* */ +/* Build macros of the FreeType 2 library. */ +/* */ +/* Copyright 1996-2001, 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This is a Unix-specific version of that should be used */ + /* exclusively *after* installation of the library. */ + /* */ + /* It assumes that `/usr/local/include/freetype2' (or whatever is */ + /* returned by the `freetype-config --cflags' or `pkg-config --cflags' */ + /* command) is in your compilation include path. */ + /* */ + /* We don't need to do anything special in this release. However, for */ + /* a future FreeType 2 release, the following installation changes will */ + /* be performed: */ + /* */ + /* - The contents of `freetype-2.x/include/freetype' will be installed */ + /* to `/usr/local/include/freetype2' instead of */ + /* `/usr/local/include/freetype2/freetype'. */ + /* */ + /* - This file will #include , instead */ + /* of . */ + /* */ + /* - The contents of `ftheader.h' will be processed with `sed' to */ + /* replace all `' with `'. */ + /* */ + /* - Adding `/usr/local/include/freetype2' to your compilation include */ + /* path will not be necessary anymore. */ + /* */ + /* These changes will be transparent to client applications which use */ + /* freetype-config (or pkg-config). No modifications will be necessary */ + /* to compile with the new scheme. */ + /* */ + /*************************************************************************/ + + +#ifndef __FT2_BUILD_UNIX_H__ +#define __FT2_BUILD_UNIX_H__ + + /* `/include/freetype2' must be in your current inclusion path */ +#include + +#endif /* __FT2_BUILD_UNIX_H__ */ + + +/* END */ diff --git a/builds/unix/ftconfig.in b/builds/unix/ftconfig.in new file mode 100644 index 0000000..9531afd --- /dev/null +++ b/builds/unix/ftconfig.in @@ -0,0 +1,544 @@ +/***************************************************************************/ +/* */ +/* ftconfig.in */ +/* */ +/* UNIX-specific configuration file (specification only). */ +/* */ +/* Copyright 1996-2004, 2006-2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This header file contains a number of macro definitions that are used */ + /* by the rest of the engine. Most of the macros here are automatically */ + /* determined at compile time, and you should not need to change it to */ + /* port FreeType, except to compile the library with a non-ANSI */ + /* compiler. */ + /* */ + /* Note however that if some specific modifications are needed, we */ + /* advise you to place a modified copy in your build directory. */ + /* */ + /* The build directory is usually `freetype/builds/', and */ + /* contains system-specific files that are always included first when */ + /* building the library. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTCONFIG_H__ +#define __FTCONFIG_H__ + +#include +#include FT_CONFIG_OPTIONS_H +#include FT_CONFIG_STANDARD_LIBRARY_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* PLATFORM-SPECIFIC CONFIGURATION MACROS */ + /* */ + /* These macros can be toggled to suit a specific system. The current */ + /* ones are defaults used to compile FreeType in an ANSI C environment */ + /* (16bit compilers are also supported). Copy this file to your own */ + /* `freetype/builds/' directory, and edit it to port the engine. */ + /* */ + /*************************************************************************/ + + +#undef HAVE_UNISTD_H +#undef HAVE_FCNTL_H +#undef HAVE_STDINT_H + + + /* There are systems (like the Texas Instruments 'C54x) where a `char' */ + /* has 16 bits. ANSI C says that sizeof(char) is always 1. Since an */ + /* `int' has 16 bits also for this system, sizeof(int) gives 1 which */ + /* is probably unexpected. */ + /* */ + /* `CHAR_BIT' (defined in limits.h) gives the number of bits in a */ + /* `char' type. */ + +#ifndef FT_CHAR_BIT +#define FT_CHAR_BIT CHAR_BIT +#endif + + +#undef FT_USE_AUTOCONF_SIZEOF_TYPES +#ifdef FT_USE_AUTOCONF_SIZEOF_TYPES + +#undef SIZEOF_INT +#undef SIZEOF_LONG +#define FT_SIZEOF_INT SIZEOF_INT +#define FT_SIZEOF_LONG SIZEOF_LONG + +#else /* !FT_USE_AUTOCONF_SIZEOF_TYPES */ + + /* Following cpp computation of the bit length of int and long */ + /* is copied from default include/freetype/config/ftconfig.h. */ + /* If any improvement is required for this file, it should be */ + /* applied to the original header file for the builders that */ + /* does not use configure script. */ + + /* The size of an `int' type. */ +#if FT_UINT_MAX == 0xFFFFUL +#define FT_SIZEOF_INT (16 / FT_CHAR_BIT) +#elif FT_UINT_MAX == 0xFFFFFFFFUL +#define FT_SIZEOF_INT (32 / FT_CHAR_BIT) +#elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL +#define FT_SIZEOF_INT (64 / FT_CHAR_BIT) +#else +#error "Unsupported size of `int' type!" +#endif + + /* The size of a `long' type. A five-byte `long' (as used e.g. on the */ + /* DM642) is recognized but avoided. */ +#if FT_ULONG_MAX == 0xFFFFFFFFUL +#define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) +#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL +#define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) +#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL +#define FT_SIZEOF_LONG (64 / FT_CHAR_BIT) +#else +#error "Unsupported size of `long' type!" +#endif + +#endif /* !FT_USE_AUTOCONF_SIZEOF_TYPES */ + + + /* FT_UNUSED is a macro used to indicate that a given parameter is not */ + /* used -- this is only used to get rid of unpleasant compiler warnings */ +#ifndef FT_UNUSED +#define FT_UNUSED( arg ) ( (arg) = (arg) ) +#endif + + + /*************************************************************************/ + /* */ + /* AUTOMATIC CONFIGURATION MACROS */ + /* */ + /* These macros are computed from the ones defined above. Don't touch */ + /* their definition, unless you know precisely what you are doing. No */ + /* porter should need to mess with them. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Mac support */ + /* */ + /* This is the only necessary change, so it is defined here instead */ + /* providing a new configuration file. */ + /* */ +#if defined( __APPLE__ ) || ( defined( __MWERKS__ ) && defined( macintosh ) ) + /* no Carbon frameworks for 64bit 10.4.x */ + /* AvailabilityMacros.h is available since Mac OS X 10.2, */ + /* so guess the system version by maximum errno before inclusion */ +#include +#ifdef ECANCELED /* defined since 10.2 */ +#include "AvailabilityMacros.h" +#endif +#if defined( __LP64__ ) && \ + ( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 ) +/undef FT_MACINTOSH +#endif + +#elif defined( __SC__ ) || defined( __MRC__ ) + /* Classic MacOS compilers */ +#include "ConditionalMacros.h" +#if TARGET_OS_MAC +#define FT_MACINTOSH 1 +#endif + +#endif + + + /* Fix compiler warning with sgi compiler */ +#if defined( __sgi ) && !defined( __GNUC__ ) +#if defined( _COMPILER_VERSION ) && ( _COMPILER_VERSION >= 730 ) +#pragma set woff 3505 +#endif +#endif + + + /*************************************************************************/ + /* */ + /* IntN types */ + /* */ + /* Used to guarantee the size of some specific integers. */ + /* */ + typedef signed short FT_Int16; + typedef unsigned short FT_UInt16; + +#if FT_SIZEOF_INT == 4 + + typedef signed int FT_Int32; + typedef unsigned int FT_UInt32; + +#elif FT_SIZEOF_LONG == 4 + + typedef signed long FT_Int32; + typedef unsigned long FT_UInt32; + +#else +#error "no 32bit type found -- please check your configuration files" +#endif + + + /* look up an integer type that is at least 32 bits */ +#if FT_SIZEOF_INT >= 4 + + typedef int FT_Fast; + typedef unsigned int FT_UFast; + +#elif FT_SIZEOF_LONG >= 4 + + typedef long FT_Fast; + typedef unsigned long FT_UFast; + +#endif + + + /* determine whether we have a 64-bit int type for platforms without */ + /* Autoconf */ +#if FT_SIZEOF_LONG == 8 + + /* FT_LONG64 must be defined if a 64-bit type is available */ +#define FT_LONG64 +#define FT_INT64 long + +#elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */ + + /* this compiler provides the __int64 type */ +#define FT_LONG64 +#define FT_INT64 __int64 + +#elif defined( __BORLANDC__ ) /* Borland C++ */ + + /* XXXX: We should probably check the value of __BORLANDC__ in order */ + /* to test the compiler version. */ + + /* this compiler provides the __int64 type */ +#define FT_LONG64 +#define FT_INT64 __int64 + +#elif defined( __WATCOMC__ ) /* Watcom C++ */ + + /* Watcom doesn't provide 64-bit data types */ + +#elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */ + +#define FT_LONG64 +#define FT_INT64 long long int + +#elif defined( __GNUC__ ) + + /* GCC provides the `long long' type */ +#define FT_LONG64 +#define FT_INT64 long long int + +#endif /* FT_SIZEOF_LONG == 8 */ + + + /*************************************************************************/ + /* */ + /* A 64-bit data type will create compilation problems if you compile */ + /* in strict ANSI mode. To avoid them, we disable its use if __STDC__ */ + /* is defined. You can however ignore this rule by defining the */ + /* FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */ + /* */ +#if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 ) + +#ifdef __STDC__ + + /* Undefine the 64-bit macros in strict ANSI compilation mode. */ + /* Since `#undef' doesn't survive in configuration header files */ + /* we use the postprocessing facility of AC_CONFIG_HEADERS to */ + /* replace the leading `/' with `#'. */ +/undef FT_LONG64 +/undef FT_INT64 + +#endif /* __STDC__ */ + +#endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */ + + +#define FT_BEGIN_STMNT do { +#define FT_END_STMNT } while ( 0 ) +#define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT + + +#ifndef FT_CONFIG_OPTION_NO_ASSEMBLER + /* Provide assembler fragments for performance-critical functions. */ + /* These must be defined `static __inline__' with GCC. */ + +#if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */ +#define FT_MULFIX_ASSEMBLER FT_MulFix_arm + + /* documentation is in freetype.h */ + + static __inline FT_Int32 + FT_MulFix_arm( FT_Int32 a, + FT_Int32 b ) + { + register FT_Int32 t, t2; + + + __asm + { + smull t2, t, b, a /* (lo=t2,hi=t) = a*b */ + mov a, t, asr #31 /* a = (hi >> 31) */ + add a, a, #0x8000 /* a += 0x8000 */ + adds t2, t2, a /* t2 += a */ + adc t, t, #0 /* t += carry */ + mov a, t2, lsr #16 /* a = t2 >> 16 */ + orr a, a, t, lsl #16 /* a |= t << 16 */ + } + return a; + } + +#endif /* __CC_ARM || __ARMCC__ */ + + +#ifdef __GNUC__ + +#if defined( __arm__ ) && !defined( __thumb__ ) && \ + !( defined( __CC_ARM ) || defined( __ARMCC__ ) ) +#define FT_MULFIX_ASSEMBLER FT_MulFix_arm + + /* documentation is in freetype.h */ + + static __inline__ FT_Int32 + FT_MulFix_arm( FT_Int32 a, + FT_Int32 b ) + { + register FT_Int32 t, t2; + + + __asm__ __volatile__ ( + "smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */ + "mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */ + "add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */ + "adds %1, %1, %0\n\t" /* %1 += %0 */ + "adc %2, %2, #0\n\t" /* %2 += carry */ + "mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */ + "orr %0, %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */ + : "=r"(a), "=&r"(t2), "=&r"(t) + : "r"(a), "r"(b) ); + return a; + } + +#endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */ + +#if defined( __i386__ ) +#define FT_MULFIX_ASSEMBLER FT_MulFix_i386 + + /* documentation is in freetype.h */ + + static __inline__ FT_Int32 + FT_MulFix_i386( FT_Int32 a, + FT_Int32 b ) + { + register FT_Int32 result; + + + __asm__ __volatile__ ( + "imul %%edx\n" + "movl %%edx, %%ecx\n" + "sarl $31, %%ecx\n" + "addl $0x8000, %%ecx\n" + "addl %%ecx, %%eax\n" + "adcl $0, %%edx\n" + "shrl $16, %%eax\n" + "shll $16, %%edx\n" + "addl %%edx, %%eax\n" + : "=a"(result), "=d"(b) + : "a"(a), "d"(b) + : "%ecx", "cc" ); + return result; + } + +#endif /* i386 */ + +#endif /* __GNUC__ */ + + +#ifdef _MSC_VER /* Visual C++ */ + +#ifdef _M_IX86 + +#define FT_MULFIX_ASSEMBLER FT_MulFix_i386 + + /* documentation is in freetype.h */ + + static __inline FT_Int32 + FT_MulFix_i386( FT_Int32 a, + FT_Int32 b ) + { + register FT_Int32 result; + + __asm + { + mov eax, a + mov edx, b + imul edx + mov ecx, edx + sar ecx, 31 + add ecx, 8000h + add eax, ecx + adc edx, 0 + shr eax, 16 + shl edx, 16 + add eax, edx + mov result, eax + } + return result; + } + +#endif /* _M_IX86 */ + +#endif /* _MSC_VER */ + +#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */ + + +#ifdef FT_CONFIG_OPTION_INLINE_MULFIX +#ifdef FT_MULFIX_ASSEMBLER +#define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER +#endif +#endif + + +#ifdef FT_MAKE_OPTION_SINGLE_OBJECT + +#define FT_LOCAL( x ) static x +#define FT_LOCAL_DEF( x ) static x + +#else + +#ifdef __cplusplus +#define FT_LOCAL( x ) extern "C" x +#define FT_LOCAL_DEF( x ) extern "C" x +#else +#define FT_LOCAL( x ) extern x +#define FT_LOCAL_DEF( x ) x +#endif + +#endif /* FT_MAKE_OPTION_SINGLE_OBJECT */ + + +#ifndef FT_BASE + +#ifdef __cplusplus +#define FT_BASE( x ) extern "C" x +#else +#define FT_BASE( x ) extern x +#endif + +#endif /* !FT_BASE */ + + +#ifndef FT_BASE_DEF + +#ifdef __cplusplus +#define FT_BASE_DEF( x ) x +#else +#define FT_BASE_DEF( x ) x +#endif + +#endif /* !FT_BASE_DEF */ + + +#ifndef FT_EXPORT + +#ifdef __cplusplus +#define FT_EXPORT( x ) extern "C" x +#else +#define FT_EXPORT( x ) extern x +#endif + +#endif /* !FT_EXPORT */ + + +#ifndef FT_EXPORT_DEF + +#ifdef __cplusplus +#define FT_EXPORT_DEF( x ) extern "C" x +#else +#define FT_EXPORT_DEF( x ) extern x +#endif + +#endif /* !FT_EXPORT_DEF */ + + +#ifndef FT_EXPORT_VAR + +#ifdef __cplusplus +#define FT_EXPORT_VAR( x ) extern "C" x +#else +#define FT_EXPORT_VAR( x ) extern x +#endif + +#endif /* !FT_EXPORT_VAR */ + + /* The following macros are needed to compile the library with a */ + /* C++ compiler and with 16bit compilers. */ + /* */ + + /* This is special. Within C++, you must specify `extern "C"' for */ + /* functions which are used via function pointers, and you also */ + /* must do that for structures which contain function pointers to */ + /* assure C linkage -- it's not possible to have (local) anonymous */ + /* functions which are accessed by (global) function pointers. */ + /* */ + /* */ + /* FT_CALLBACK_DEF is used to _define_ a callback function. */ + /* */ + /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ + /* contains pointers to callback functions. */ + /* */ + /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */ + /* that contains pointers to callback functions. */ + /* */ + /* */ + /* Some 16bit compilers have to redefine these macros to insert */ + /* the infamous `_cdecl' or `__fastcall' declarations. */ + /* */ +#ifndef FT_CALLBACK_DEF +#ifdef __cplusplus +#define FT_CALLBACK_DEF( x ) extern "C" x +#else +#define FT_CALLBACK_DEF( x ) static x +#endif +#endif /* FT_CALLBACK_DEF */ + +#ifndef FT_CALLBACK_TABLE +#ifdef __cplusplus +#define FT_CALLBACK_TABLE extern "C" +#define FT_CALLBACK_TABLE_DEF extern "C" +#else +#define FT_CALLBACK_TABLE extern +#define FT_CALLBACK_TABLE_DEF /* nothing */ +#endif +#endif /* FT_CALLBACK_TABLE */ + + +FT_END_HEADER + + +#endif /* __FTCONFIG_H__ */ + + +/* END */ diff --git a/builds/unix/ftsystem.c b/builds/unix/ftsystem.c new file mode 100644 index 0000000..95f8271 --- /dev/null +++ b/builds/unix/ftsystem.c @@ -0,0 +1,419 @@ +/***************************************************************************/ +/* */ +/* ftsystem.c */ +/* */ +/* Unix-specific FreeType low-level system interface (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include + /* we use our special ftconfig.h file, not the standard one */ +#include +#include FT_INTERNAL_DEBUG_H +#include FT_SYSTEM_H +#include FT_ERRORS_H +#include FT_TYPES_H +#include FT_INTERNAL_STREAM_H + + /* memory-mapping includes and definitions */ +#ifdef HAVE_UNISTD_H +#include +#endif + +#include +#ifndef MAP_FILE +#define MAP_FILE 0x00 +#endif + +#ifdef MUNMAP_USES_VOIDP +#define MUNMAP_ARG_CAST void * +#else +#define MUNMAP_ARG_CAST char * +#endif + +#ifdef NEED_MUNMAP_DECL + +#ifdef __cplusplus + extern "C" +#else + extern +#endif + int + munmap( char* addr, + int len ); + +#define MUNMAP_ARG_CAST char * + +#endif /* NEED_DECLARATION_MUNMAP */ + + +#include +#include + +#ifdef HAVE_FCNTL_H +#include +#endif + +#include +#include +#include +#include + + + /*************************************************************************/ + /* */ + /* MEMORY MANAGEMENT INTERFACE */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* ft_alloc */ + /* */ + /* */ + /* The memory allocation function. */ + /* */ + /* */ + /* memory :: A pointer to the memory object. */ + /* */ + /* size :: The requested size in bytes. */ + /* */ + /* */ + /* The address of newly allocated block. */ + /* */ + FT_CALLBACK_DEF( void* ) + ft_alloc( FT_Memory memory, + long size ) + { + FT_UNUSED( memory ); + + return malloc( size ); + } + + + /*************************************************************************/ + /* */ + /* */ + /* ft_realloc */ + /* */ + /* */ + /* The memory reallocation function. */ + /* */ + /* */ + /* memory :: A pointer to the memory object. */ + /* */ + /* cur_size :: The current size of the allocated memory block. */ + /* */ + /* new_size :: The newly requested size in bytes. */ + /* */ + /* block :: The current address of the block in memory. */ + /* */ + /* */ + /* The address of the reallocated memory block. */ + /* */ + FT_CALLBACK_DEF( void* ) + ft_realloc( FT_Memory memory, + long cur_size, + long new_size, + void* block ) + { + FT_UNUSED( memory ); + FT_UNUSED( cur_size ); + + return realloc( block, new_size ); + } + + + /*************************************************************************/ + /* */ + /* */ + /* ft_free */ + /* */ + /* */ + /* The memory release function. */ + /* */ + /* */ + /* memory :: A pointer to the memory object. */ + /* */ + /* block :: The address of block in memory to be freed. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_free( FT_Memory memory, + void* block ) + { + FT_UNUSED( memory ); + + free( block ); + } + + + /*************************************************************************/ + /* */ + /* RESOURCE MANAGEMENT INTERFACE */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_io + + /* We use the macro STREAM_FILE for convenience to extract the */ + /* system-specific stream handle from a given FreeType stream object */ +#define STREAM_FILE( stream ) ( (FILE*)stream->descriptor.pointer ) + + + /*************************************************************************/ + /* */ + /* */ + /* ft_close_stream_by_munmap */ + /* */ + /* */ + /* The function to close a stream which is opened by mmap. */ + /* */ + /* */ + /* stream :: A pointer to the stream object. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_close_stream_by_munmap( FT_Stream stream ) + { + munmap( (MUNMAP_ARG_CAST)stream->descriptor.pointer, stream->size ); + + stream->descriptor.pointer = NULL; + stream->size = 0; + stream->base = 0; + } + + + /*************************************************************************/ + /* */ + /* */ + /* ft_close_stream_by_free */ + /* */ + /* */ + /* The function to close a stream which is created by ft_alloc. */ + /* */ + /* */ + /* stream :: A pointer to the stream object. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_close_stream_by_free( FT_Stream stream ) + { + ft_free( NULL, stream->descriptor.pointer ); + + stream->descriptor.pointer = NULL; + stream->size = 0; + stream->base = 0; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Error ) + FT_Stream_Open( FT_Stream stream, + const char* filepathname ) + { + int file; + struct stat stat_buf; + + + if ( !stream ) + return FT_Err_Invalid_Stream_Handle; + + /* open the file */ + file = open( filepathname, O_RDONLY ); + if ( file < 0 ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not open `%s'\n", filepathname )); + return FT_Err_Cannot_Open_Resource; + } + + /* Here we ensure that a "fork" will _not_ duplicate */ + /* our opened input streams on Unix. This is critical */ + /* since it avoids some (possible) access control */ + /* issues and cleans up the kernel file table a bit. */ + /* */ +#ifdef F_SETFD +#ifdef FD_CLOEXEC + (void)fcntl( file, F_SETFD, FD_CLOEXEC ); +#else + (void)fcntl( file, F_SETFD, 1 ); +#endif /* FD_CLOEXEC */ +#endif /* F_SETFD */ + + if ( fstat( file, &stat_buf ) < 0 ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not `fstat' file `%s'\n", filepathname )); + goto Fail_Map; + } + + /* XXX: TODO -- real 64bit platform support */ + /* */ + /* `stream->size' is typedef'd to unsigned long (in */ + /* freetype/ftsystem.h); `stat_buf.st_size', however, is usually */ + /* typedef'd to off_t (in sys/stat.h). */ + /* On some platforms, the former is 32bit and the latter is 64bit. */ + /* To avoid overflow caused by fonts in huge files larger than */ + /* 2GB, do a test. Temporary fix proposed by Sean McBride. */ + /* */ + if ( stat_buf.st_size > LONG_MAX ) + { + FT_ERROR(( "FT_Stream_Open: file is too big\n" )); + goto Fail_Map; + } + else if ( stat_buf.st_size == 0 ) + { + FT_ERROR(( "FT_Stream_Open: zero-length file\n" )); + goto Fail_Map; + } + + /* This cast potentially truncates a 64bit to 32bit! */ + stream->size = (unsigned long)stat_buf.st_size; + stream->pos = 0; + stream->base = (unsigned char *)mmap( NULL, + stream->size, + PROT_READ, + MAP_FILE | MAP_PRIVATE, + file, + 0 ); + + /* on some RTOS, mmap might return 0 */ + if ( (long)stream->base != -1 && stream->base != NULL ) + stream->close = ft_close_stream_by_munmap; + else + { + ssize_t total_read_count; + + + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not `mmap' file `%s'\n", filepathname )); + + stream->base = (unsigned char*)ft_alloc( NULL, stream->size ); + + if ( !stream->base ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not `alloc' memory\n" )); + goto Fail_Map; + } + + total_read_count = 0; + do { + ssize_t read_count; + + + read_count = read( file, + stream->base + total_read_count, + stream->size - total_read_count ); + + if ( read_count <= 0 ) + { + if ( read_count == -1 && errno == EINTR ) + continue; + + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " error while `read'ing file `%s'\n", filepathname )); + goto Fail_Read; + } + + total_read_count += read_count; + + } while ( (unsigned long)total_read_count != stream->size ); + + stream->close = ft_close_stream_by_free; + } + + close( file ); + + stream->descriptor.pointer = stream->base; + stream->pathname.pointer = (char*)filepathname; + + stream->read = 0; + + FT_TRACE1(( "FT_Stream_Open:" )); + FT_TRACE1(( " opened `%s' (%d bytes) successfully\n", + filepathname, stream->size )); + + return FT_Err_Ok; + + Fail_Read: + ft_free( NULL, stream->base ); + + Fail_Map: + close( file ); + + stream->base = NULL; + stream->size = 0; + stream->pos = 0; + + return FT_Err_Cannot_Open_Stream; + } + + +#ifdef FT_DEBUG_MEMORY + + extern FT_Int + ft_mem_debug_init( FT_Memory memory ); + + extern void + ft_mem_debug_done( FT_Memory memory ); + +#endif + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Memory ) + FT_New_Memory( void ) + { + FT_Memory memory; + + + memory = (FT_Memory)malloc( sizeof ( *memory ) ); + if ( memory ) + { + memory->user = 0; + memory->alloc = ft_alloc; + memory->realloc = ft_realloc; + memory->free = ft_free; +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_init( memory ); +#endif + } + + return memory; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( void ) + FT_Done_Memory( FT_Memory memory ) + { +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_done( memory ); +#endif + memory->free( memory, memory ); + } + + +/* END */ diff --git a/builds/unix/install-sh b/builds/unix/install-sh new file mode 100755 index 0000000..a9244eb --- /dev/null +++ b/builds/unix/install-sh @@ -0,0 +1,527 @@ +#!/bin/sh +# install - install a program, script, or datafile + +scriptversion=2011-01-19.21; # UTC + +# This originates from X11R5 (mit/util/scripts/install.sh), which was +# later released in X11R6 (xc/config/util/install.sh) with the +# following copyright and license. +# +# Copyright (C) 1994 X Consortium +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to +# deal in the Software without restriction, including without limitation the +# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +# sell copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- +# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +# +# Except as contained in this notice, the name of the X Consortium shall not +# be used in advertising or otherwise to promote the sale, use or other deal- +# ings in this Software without prior written authorization from the X Consor- +# tium. +# +# +# FSF changes to this file are in the public domain. +# +# Calling this script install-sh is preferred over install.sh, to prevent +# `make' implicit rules from creating a file called install from it +# when there is no Makefile. +# +# This script is compatible with the BSD install script, but was written +# from scratch. + +nl=' +' +IFS=" "" $nl" + +# set DOITPROG to echo to test this script + +# Don't use :- since 4.3BSD and earlier shells don't like it. +doit=${DOITPROG-} +if test -z "$doit"; then + doit_exec=exec +else + doit_exec=$doit +fi + +# Put in absolute file names if you don't have them in your path; +# or use environment vars. + +chgrpprog=${CHGRPPROG-chgrp} +chmodprog=${CHMODPROG-chmod} +chownprog=${CHOWNPROG-chown} +cmpprog=${CMPPROG-cmp} +cpprog=${CPPROG-cp} +mkdirprog=${MKDIRPROG-mkdir} +mvprog=${MVPROG-mv} +rmprog=${RMPROG-rm} +stripprog=${STRIPPROG-strip} + +posix_glob='?' +initialize_posix_glob=' + test "$posix_glob" != "?" || { + if (set -f) 2>/dev/null; then + posix_glob= + else + posix_glob=: + fi + } +' + +posix_mkdir= + +# Desired mode of installed file. +mode=0755 + +chgrpcmd= +chmodcmd=$chmodprog +chowncmd= +mvcmd=$mvprog +rmcmd="$rmprog -f" +stripcmd= + +src= +dst= +dir_arg= +dst_arg= + +copy_on_change=false +no_target_directory= + +usage="\ +Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE + or: $0 [OPTION]... SRCFILES... DIRECTORY + or: $0 [OPTION]... -t DIRECTORY SRCFILES... + or: $0 [OPTION]... -d DIRECTORIES... + +In the 1st form, copy SRCFILE to DSTFILE. +In the 2nd and 3rd, copy all SRCFILES to DIRECTORY. +In the 4th, create DIRECTORIES. + +Options: + --help display this help and exit. + --version display version info and exit. + + -c (ignored) + -C install only if different (preserve the last data modification time) + -d create directories instead of installing files. + -g GROUP $chgrpprog installed files to GROUP. + -m MODE $chmodprog installed files to MODE. + -o USER $chownprog installed files to USER. + -s $stripprog installed files. + -t DIRECTORY install into DIRECTORY. + -T report an error if DSTFILE is a directory. + +Environment variables override the default commands: + CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG + RMPROG STRIPPROG +" + +while test $# -ne 0; do + case $1 in + -c) ;; + + -C) copy_on_change=true;; + + -d) dir_arg=true;; + + -g) chgrpcmd="$chgrpprog $2" + shift;; + + --help) echo "$usage"; exit $?;; + + -m) mode=$2 + case $mode in + *' '* | *' '* | *' +'* | *'*'* | *'?'* | *'['*) + echo "$0: invalid mode: $mode" >&2 + exit 1;; + esac + shift;; + + -o) chowncmd="$chownprog $2" + shift;; + + -s) stripcmd=$stripprog;; + + -t) dst_arg=$2 + # Protect names problematic for `test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + shift;; + + -T) no_target_directory=true;; + + --version) echo "$0 $scriptversion"; exit $?;; + + --) shift + break;; + + -*) echo "$0: invalid option: $1" >&2 + exit 1;; + + *) break;; + esac + shift +done + +if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then + # When -d is used, all remaining arguments are directories to create. + # When -t is used, the destination is already specified. + # Otherwise, the last argument is the destination. Remove it from $@. + for arg + do + if test -n "$dst_arg"; then + # $@ is not empty: it contains at least $arg. + set fnord "$@" "$dst_arg" + shift # fnord + fi + shift # arg + dst_arg=$arg + # Protect names problematic for `test' and other utilities. + case $dst_arg in + -* | [=\(\)!]) dst_arg=./$dst_arg;; + esac + done +fi + +if test $# -eq 0; then + if test -z "$dir_arg"; then + echo "$0: no input file specified." >&2 + exit 1 + fi + # It's OK to call `install-sh -d' without argument. + # This can happen when creating conditional directories. + exit 0 +fi + +if test -z "$dir_arg"; then + do_exit='(exit $ret); exit $ret' + trap "ret=129; $do_exit" 1 + trap "ret=130; $do_exit" 2 + trap "ret=141; $do_exit" 13 + trap "ret=143; $do_exit" 15 + + # Set umask so as not to create temps with too-generous modes. + # However, 'strip' requires both read and write access to temps. + case $mode in + # Optimize common cases. + *644) cp_umask=133;; + *755) cp_umask=22;; + + *[0-7]) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw='% 200' + fi + cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;; + *) + if test -z "$stripcmd"; then + u_plus_rw= + else + u_plus_rw=,u+rw + fi + cp_umask=$mode$u_plus_rw;; + esac +fi + +for src +do + # Protect names problematic for `test' and other utilities. + case $src in + -* | [=\(\)!]) src=./$src;; + esac + + if test -n "$dir_arg"; then + dst=$src + dstdir=$dst + test -d "$dstdir" + dstdir_status=$? + else + + # Waiting for this to be detected by the "$cpprog $src $dsttmp" command + # might cause directories to be created, which would be especially bad + # if $src (and thus $dsttmp) contains '*'. + if test ! -f "$src" && test ! -d "$src"; then + echo "$0: $src does not exist." >&2 + exit 1 + fi + + if test -z "$dst_arg"; then + echo "$0: no destination specified." >&2 + exit 1 + fi + dst=$dst_arg + + # If destination is a directory, append the input filename; won't work + # if double slashes aren't ignored. + if test -d "$dst"; then + if test -n "$no_target_directory"; then + echo "$0: $dst_arg: Is a directory" >&2 + exit 1 + fi + dstdir=$dst + dst=$dstdir/`basename "$src"` + dstdir_status=0 + else + # Prefer dirname, but fall back on a substitute if dirname fails. + dstdir=` + (dirname "$dst") 2>/dev/null || + expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$dst" : 'X\(//\)[^/]' \| \ + X"$dst" : 'X\(//\)$' \| \ + X"$dst" : 'X\(/\)' \| . 2>/dev/null || + echo X"$dst" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q' + ` + + test -d "$dstdir" + dstdir_status=$? + fi + fi + + obsolete_mkdir_used=false + + if test $dstdir_status != 0; then + case $posix_mkdir in + '') + # Create intermediate dirs using mode 755 as modified by the umask. + # This is like FreeBSD 'install' as of 1997-10-28. + umask=`umask` + case $stripcmd.$umask in + # Optimize common cases. + *[2367][2367]) mkdir_umask=$umask;; + .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;; + + *[0-7]) + mkdir_umask=`expr $umask + 22 \ + - $umask % 100 % 40 + $umask % 20 \ + - $umask % 10 % 4 + $umask % 2 + `;; + *) mkdir_umask=$umask,go-w;; + esac + + # With -d, create the new directory with the user-specified mode. + # Otherwise, rely on $mkdir_umask. + if test -n "$dir_arg"; then + mkdir_mode=-m$mode + else + mkdir_mode= + fi + + posix_mkdir=false + case $umask in + *[123567][0-7][0-7]) + # POSIX mkdir -p sets u+wx bits regardless of umask, which + # is incompatible with FreeBSD 'install' when (umask & 300) != 0. + ;; + *) + tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$ + trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0 + + if (umask $mkdir_umask && + exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1 + then + if test -z "$dir_arg" || { + # Check for POSIX incompatibilities with -m. + # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or + # other-writeable bit of parent directory when it shouldn't. + # FreeBSD 6.1 mkdir -m -p sets mode of existing directory. + ls_ld_tmpdir=`ls -ld "$tmpdir"` + case $ls_ld_tmpdir in + d????-?r-*) different_mode=700;; + d????-?--*) different_mode=755;; + *) false;; + esac && + $mkdirprog -m$different_mode -p -- "$tmpdir" && { + ls_ld_tmpdir_1=`ls -ld "$tmpdir"` + test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1" + } + } + then posix_mkdir=: + fi + rmdir "$tmpdir/d" "$tmpdir" + else + # Remove any dirs left behind by ancient mkdir implementations. + rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null + fi + trap '' 0;; + esac;; + esac + + if + $posix_mkdir && ( + umask $mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir" + ) + then : + else + + # The umask is ridiculous, or mkdir does not conform to POSIX, + # or it failed possibly due to a race condition. Create the + # directory the slow way, step by step, checking for races as we go. + + case $dstdir in + /*) prefix='/';; + [-=\(\)!]*) prefix='./';; + *) prefix='';; + esac + + eval "$initialize_posix_glob" + + oIFS=$IFS + IFS=/ + $posix_glob set -f + set fnord $dstdir + shift + $posix_glob set +f + IFS=$oIFS + + prefixes= + + for d + do + test X"$d" = X && continue + + prefix=$prefix$d + if test -d "$prefix"; then + prefixes= + else + if $posix_mkdir; then + (umask=$mkdir_umask && + $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break + # Don't fail if two instances are running concurrently. + test -d "$prefix" || exit 1 + else + case $prefix in + *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;; + *) qprefix=$prefix;; + esac + prefixes="$prefixes '$qprefix'" + fi + fi + prefix=$prefix/ + done + + if test -n "$prefixes"; then + # Don't fail if two instances are running concurrently. + (umask $mkdir_umask && + eval "\$doit_exec \$mkdirprog $prefixes") || + test -d "$dstdir" || exit 1 + obsolete_mkdir_used=true + fi + fi + fi + + if test -n "$dir_arg"; then + { test -z "$chowncmd" || $doit $chowncmd "$dst"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } && + { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false || + test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1 + else + + # Make a couple of temp file names in the proper directory. + dsttmp=$dstdir/_inst.$$_ + rmtmp=$dstdir/_rm.$$_ + + # Trap to clean up those temp files at exit. + trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 + + # Copy the file name to the temp name. + (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && + + # and set any options; do chmod last to preserve setuid bits. + # + # If any of these fail, we abort the whole thing. If we want to + # ignore errors from any of these, just make sure not to ignore + # errors from the above "$doit $cpprog $src $dsttmp" command. + # + { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } && + { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } && + { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } && + { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } && + + # If -C, don't bother to copy if it wouldn't change the file. + if $copy_on_change && + old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` && + new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` && + + eval "$initialize_posix_glob" && + $posix_glob set -f && + set X $old && old=:$2:$4:$5:$6 && + set X $new && new=:$2:$4:$5:$6 && + $posix_glob set +f && + + test "$old" = "$new" && + $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1 + then + rm -f "$dsttmp" + else + # Rename the file to the real destination. + $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || + + # The rename failed, perhaps because mv can't rename something else + # to itself, or perhaps because mv is so ancient that it does not + # support -f. + { + # Now remove or move aside any old file at destination location. + # We try this two ways since rm can't unlink itself on some + # systems and the destination file might be busy for other + # reasons. In this case, the final cleanup might fail but the new + # file should still install successfully. + { + test ! -f "$dst" || + $doit $rmcmd -f "$dst" 2>/dev/null || + { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && + { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } + } || + { echo "$0: cannot unlink or rename $dst" >&2 + (exit 1); exit 1 + } + } && + + # Now rename the file to the real destination. + $doit $mvcmd "$dsttmp" "$dst" + } + fi || exit 1 + + trap '' 0 + fi +done + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-time-zone: "UTC" +# time-stamp-end: "; # UTC" +# End: diff --git a/builds/unix/install.mk b/builds/unix/install.mk new file mode 100644 index 0000000..2e5ef08 --- /dev/null +++ b/builds/unix/install.mk @@ -0,0 +1,97 @@ +# +# FreeType 2 installation instructions for Unix systems +# + + +# Copyright 1996-2000, 2002, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +# If you say +# +# make install DESTDIR=/tmp/somewhere/ +# +# don't forget the final backslash (this command is mainly for package +# maintainers). + + +.PHONY: install uninstall check + +# Unix installation and deinstallation targets. +# +# Note that we no longer install internal headers, and we remove any +# `internal' subdirectory found in `$(includedir)/freetype2/freetype'. +# +install: $(PROJECT_LIBRARY) + $(MKINSTALLDIRS) $(DESTDIR)$(libdir) \ + $(DESTDIR)$(libdir)/pkgconfig \ + $(DESTDIR)$(includedir)/freetype2/freetype/config \ + $(DESTDIR)$(includedir)/freetype2/freetype/cache \ + $(DESTDIR)$(bindir) \ + $(DESTDIR)$(datadir)/aclocal + $(LIBTOOL) --mode=install $(INSTALL) \ + $(PROJECT_LIBRARY) $(DESTDIR)$(libdir) + -for P in $(PUBLIC_H) ; do \ + $(INSTALL_DATA) \ + $$P $(DESTDIR)$(includedir)/freetype2/freetype ; \ + done + -for P in $(CONFIG_H) ; do \ + $(INSTALL_DATA) \ + $$P $(DESTDIR)$(includedir)/freetype2/freetype/config ; \ + done + -$(DELETE) $(DESTDIR)$(includedir)/freetype2/freetype/cache/* + -$(DELDIR) $(DESTDIR)$(includedir)/freetype2/freetype/cache + -$(DELETE) $(DESTDIR)$(includedir)/freetype2/freetype/internal/* + -$(DELDIR) $(DESTDIR)$(includedir)/freetype2/freetype/internal + $(INSTALL_DATA) $(BUILD_DIR)/ft2unix.h \ + $(DESTDIR)$(includedir)/ft2build.h + $(INSTALL_DATA) $(OBJ_BUILD)/ftconfig.h \ + $(DESTDIR)$(includedir)/freetype2/freetype/config/ftconfig.h + $(INSTALL_DATA) $(OBJ_DIR)/ftmodule.h \ + $(DESTDIR)$(includedir)/freetype2/freetype/config/ftmodule.h + $(INSTALL_SCRIPT) -m 755 $(OBJ_BUILD)/freetype-config \ + $(DESTDIR)$(bindir)/freetype-config + $(INSTALL_SCRIPT) -m 644 $(BUILD_DIR)/freetype2.m4 \ + $(DESTDIR)$(datadir)/aclocal/freetype2.m4 + $(INSTALL_SCRIPT) -m 644 $(OBJ_BUILD)/freetype2.pc \ + $(DESTDIR)$(libdir)/pkgconfig/freetype2.pc + + +uninstall: + -$(LIBTOOL) --mode=uninstall $(RM) $(DESTDIR)$(libdir)/$(LIBRARY).$A + -$(DELETE) $(DESTDIR)$(includedir)/freetype2/freetype/config/* + -$(DELDIR) $(DESTDIR)$(includedir)/freetype2/freetype/config + -$(DELETE) $(DESTDIR)$(includedir)/freetype2/freetype/* + -$(DELDIR) $(DESTDIR)$(includedir)/freetype2/freetype + -$(DELDIR) $(DESTDIR)$(includedir)/freetype2 + -$(DELETE) $(DESTDIR)$(includedir)/ft2build.h + -$(DELETE) $(DESTDIR)$(bindir)/freetype-config + -$(DELETE) $(DESTDIR)$(datadir)/aclocal/freetype2.m4 + -$(DELETE) $(DESTDIR)$(libdir)/pkgconfig/freetype2.pc + + +check: + @echo There is no validation suite for this package. + + +.PHONY: clean_project_unix distclean_project_unix + +# Unix cleaning and distclean rules. +# +clean_project_unix: + -$(DELETE) $(BASE_OBJECTS) $(OBJ_M) $(OBJ_S) + -$(DELETE) $(patsubst %.$O,%.$(SO),$(BASE_OBJECTS) $(OBJ_M) $(OBJ_S)) \ + $(CLEAN) + +distclean_project_unix: clean_project_unix + -$(DELETE) $(PROJECT_LIBRARY) + -$(DELETE) $(OBJ_DIR)/.libs/* + -$(DELDIR) $(OBJ_DIR)/.libs + -$(DELETE) *.orig *~ core *.core $(DISTCLEAN) + +# EOF diff --git a/builds/unix/mkinstalldirs b/builds/unix/mkinstalldirs new file mode 100755 index 0000000..ef7e16f --- /dev/null +++ b/builds/unix/mkinstalldirs @@ -0,0 +1,161 @@ +#! /bin/sh +# mkinstalldirs --- make directory hierarchy + +scriptversion=2006-05-11.19 + +# Original author: Noah Friedman +# Created: 1993-05-16 +# Public domain. +# +# This file is maintained in Automake, please report +# bugs to or send patches to +# . + +nl=' +' +IFS=" "" $nl" +errstatus=0 +dirmode= + +usage="\ +Usage: mkinstalldirs [-h] [--help] [--version] [-m MODE] DIR ... + +Create each directory DIR (with mode MODE, if specified), including all +leading file name components. + +Report bugs to ." + +# process command line arguments +while test $# -gt 0 ; do + case $1 in + -h | --help | --h*) # -h for help + echo "$usage" + exit $? + ;; + -m) # -m PERM arg + shift + test $# -eq 0 && { echo "$usage" 1>&2; exit 1; } + dirmode=$1 + shift + ;; + --version) + echo "$0 $scriptversion" + exit $? + ;; + --) # stop option processing + shift + break + ;; + -*) # unknown option + echo "$usage" 1>&2 + exit 1 + ;; + *) # first non-opt arg + break + ;; + esac +done + +for file +do + if test -d "$file"; then + shift + else + break + fi +done + +case $# in + 0) exit 0 ;; +esac + +# Solaris 8's mkdir -p isn't thread-safe. If you mkdir -p a/b and +# mkdir -p a/c at the same time, both will detect that a is missing, +# one will create a, then the other will try to create a and die with +# a "File exists" error. This is a problem when calling mkinstalldirs +# from a parallel make. We use --version in the probe to restrict +# ourselves to GNU mkdir, which is thread-safe. +case $dirmode in + '') + if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then + echo "mkdir -p -- $*" + exec mkdir -p -- "$@" + else + # On NextStep and OpenStep, the `mkdir' command does not + # recognize any option. It will interpret all options as + # directories to create, and then abort because `.' already + # exists. + test -d ./-p && rmdir ./-p + test -d ./--version && rmdir ./--version + fi + ;; + *) + if mkdir -m "$dirmode" -p --version . >/dev/null 2>&1 && + test ! -d ./--version; then + echo "mkdir -m $dirmode -p -- $*" + exec mkdir -m "$dirmode" -p -- "$@" + else + # Clean up after NextStep and OpenStep mkdir. + for d in ./-m ./-p ./--version "./$dirmode"; + do + test -d $d && rmdir $d + done + fi + ;; +esac + +for file +do + case $file in + /*) pathcomp=/ ;; + *) pathcomp= ;; + esac + oIFS=$IFS + IFS=/ + set fnord $file + shift + IFS=$oIFS + + for d + do + test "x$d" = x && continue + + pathcomp=$pathcomp$d + case $pathcomp in + -*) pathcomp=./$pathcomp ;; + esac + + if test ! -d "$pathcomp"; then + echo "mkdir $pathcomp" + + mkdir "$pathcomp" || lasterr=$? + + if test ! -d "$pathcomp"; then + errstatus=$lasterr + else + if test ! -z "$dirmode"; then + echo "chmod $dirmode $pathcomp" + lasterr= + chmod "$dirmode" "$pathcomp" || lasterr=$? + + if test ! -z "$lasterr"; then + errstatus=$lasterr + fi + fi + fi + fi + + pathcomp=$pathcomp/ + done +done + +exit $errstatus + +# Local Variables: +# mode: shell-script +# sh-indentation: 2 +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "scriptversion=" +# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-end: "$" +# End: diff --git a/builds/unix/unix-cc.in b/builds/unix/unix-cc.in new file mode 100644 index 0000000..b84bc5d --- /dev/null +++ b/builds/unix/unix-cc.in @@ -0,0 +1,114 @@ +# +# FreeType 2 template for Unix-specific compiler definitions +# + +# Copyright 1996-2000, 2002, 2003, 2005, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CC := @CC@ +COMPILER_SEP := $(SEP) +FT_LIBTOOL_DIR ?= $(BUILD_DIR) + +LIBTOOL := $(FT_LIBTOOL_DIR)/libtool + + +# The object file extension (for standard and static libraries). This can be +# .o, .tco, .obj, etc., depending on the platform. +# +O := lo +SO := o + + +# The executable file extension. Although most Unix platforms use no +# extension, we copy the extension detected by autoconf. Useful for cross +# building on Unix systems for non-Unix systems. +# +E := @EXEEXT@ + + +# The library file extension (for standard and static libraries). This can +# be .a, .lib, etc., depending on the platform. +# +A := la +SA := a + + +# The name of the final library file. Note that the DOS-specific Makefile +# uses a shorter (8.3) name. +# +LIBRARY := lib$(PROJECT) + + +# Path inclusion flag. Some compilers use a different flag than `-I' to +# specify an additional include path. Examples are `/i=' or `-J'. +# +I := -I + + +# C flag used to define a macro before the compilation of a given source +# object. Usually it is `-D' like in `-DDEBUG'. +# +D := -D + + +# The link flag used to specify a given library file on link. Note that +# this is only used to compile the demo programs, not the library itself. +# +L := -l + + +# Target flag. +# +T := -o$(space) + + +# C flags +# +# These should concern: debug output, optimization & warnings. +# +# Use the ANSIFLAGS variable to define the compiler flags used to enfore +# ANSI compliance. +# +# We use our own FreeType configuration file. +# +CPPFLAGS := @CPPFLAGS@ +CFLAGS := -c @XX_CFLAGS@ @CFLAGS@ -DFT_CONFIG_CONFIG_H="" + +# ANSIFLAGS: Put there the flags used to make your compiler ANSI-compliant. +# +ANSIFLAGS := @XX_ANSIFLAGS@ + +# C compiler to use -- we use libtool! +# +# +CCraw := $(CC) +CC := $(LIBTOOL) --mode=compile $(CCraw) + +# Linker flags. +# +LDFLAGS := @LDFLAGS@ + + +# export symbols +# +CCraw_build := @CC_BUILD@ # native CC of building system +E_BUILD := @EXEEXT_BUILD@ # extension for exexutable on building system +EXPORTS_LIST := $(OBJ_DIR)/ftexport.sym +CCexe := $(CCraw_build) # used to compile `apinames' only + + +# Library linking +# +LINK_LIBRARY = $(LIBTOOL) --mode=link $(CCraw) -o $@ $(OBJECTS_LIST) \ + -rpath $(libdir) -version-info $(version_info) \ + $(LDFLAGS) -no-undefined \ + # -export-symbols $(EXPORTS_LIST) + +# EOF diff --git a/builds/unix/unix-def.in b/builds/unix/unix-def.in new file mode 100644 index 0000000..e0a7a3a --- /dev/null +++ b/builds/unix/unix-def.in @@ -0,0 +1,85 @@ +# +# FreeType 2 configuration rules templates for Unix + configure +# + + +# Copyright 1996-2000, 2002, 2004, 2006, 2008 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +TOP_DIR := $(shell cd $(TOP_DIR); pwd) + +DELETE := @RMF@ +DELDIR := @RMDIR@ +CAT := cat +SEP := / + +# this is used for `make distclean' and `make install' +OBJ_BUILD ?= $(BUILD_DIR) + +# don't use `:=' here since the path stuff will be included after this file +# +FTSYS_SRC = @FTSYS_SRC@ + +INSTALL := @INSTALL@ +INSTALL_DATA := @INSTALL_DATA@ +INSTALL_PROGRAM := @INSTALL_PROGRAM@ +INSTALL_SCRIPT := @INSTALL_SCRIPT@ +MKINSTALLDIRS := $(BUILD_DIR)/mkinstalldirs + +DISTCLEAN += $(OBJ_BUILD)/config.cache \ + $(OBJ_BUILD)/config.log \ + $(OBJ_BUILD)/config.status \ + $(OBJ_BUILD)/unix-def.mk \ + $(OBJ_BUILD)/unix-cc.mk \ + $(OBJ_BUILD)/ftconfig.h \ + $(OBJ_BUILD)/freetype-config \ + $(OBJ_BUILD)/freetype2.pc \ + $(LIBTOOL) \ + $(OBJ_BUILD)/Makefile + + +# Standard installation variables. +# +prefix := @prefix@ +exec_prefix := @exec_prefix@ +libdir := @libdir@ +bindir := @bindir@ +includedir := @includedir@ +datarootdir := @datarootdir@ +datadir := @datadir@ + +version_info := @version_info@ + + +# The directory where all library files are placed. +# +# By default, this is the same as $(OBJ_DIR); however, this can be changed +# to suit particular needs. +# +LIB_DIR := $(OBJ_DIR) + +# The BASE_SRC macro lists all source files that should be included in +# src/base/ftbase.c. When configure sets up CFLAGS to build ftmac.c, +# ftmac.c should be added to BASE_SRC. +ftmac_c := @ftmac_c@ + +# The SYSTEM_ZLIB macro is defined if the user wishes to link dynamically +# with its system wide zlib. If SYSTEM_ZLIB is 'yes', the zlib part of the +# ftgzip module is not compiled in. +SYSTEM_ZLIB := @SYSTEM_ZLIB@ + + +# The NO_OUTPUT macro is appended to command lines in order to ignore +# the output of some programs. +# +NO_OUTPUT := 2> /dev/null + + +# EOF diff --git a/builds/unix/unix-dev.mk b/builds/unix/unix-dev.mk new file mode 100644 index 0000000..76bae38 --- /dev/null +++ b/builds/unix/unix-dev.mk @@ -0,0 +1,26 @@ +# +# FreeType 2 Configuration rules for Unix + GCC +# +# Development version without optimizations & libtool +# and no installation. +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +DEVEL_DIR := $(TOP_DIR)/devel + +include $(TOP_DIR)/builds/unix/unixddef.mk +include $(TOP_DIR)/builds/compiler/gcc-dev.mk +include $(TOP_DIR)/builds/link_std.mk + + +# EOF diff --git a/builds/unix/unix-lcc.mk b/builds/unix/unix-lcc.mk new file mode 100644 index 0000000..6038e52 --- /dev/null +++ b/builds/unix/unix-lcc.mk @@ -0,0 +1,24 @@ +# +# FreeType 2 Configuration rules for Unix + LCC +# +# Development version without optimizations & libtool +# and no installation. +# + + +# Copyright 1996-2000 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +include $(TOP_DIR)/builds/unix/unixddef.mk +include $(TOP_DIR)/builds/compiler/unix-lcc.mk +include $(TOP_DIR)/builds/link_std.mk + + +# EOF diff --git a/builds/unix/unix.mk b/builds/unix/unix.mk new file mode 100644 index 0000000..7f9d9a3 --- /dev/null +++ b/builds/unix/unix.mk @@ -0,0 +1,62 @@ +# +# FreeType 2 configuration rules for UNIX platforms +# + + +# Copyright 1996-2000, 2002, 2004, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +# We need these declarations here since unix-def.mk is a generated file. +BUILD_DIR := $(TOP_DIR)/builds/unix +PLATFORM := unix + +have_mk := $(wildcard $(OBJ_DIR)/unix-def.mk) +ifneq ($(have_mk),) + # We are building FreeType 2 not in the src tree. + include $(OBJ_DIR)/unix-def.mk + include $(OBJ_DIR)/unix-cc.mk +else + include $(BUILD_DIR)/unix-def.mk + include $(BUILD_DIR)/unix-cc.mk +endif + +ifdef BUILD_PROJECT + + .PHONY: clean_project distclean_project + + # Now include the main sub-makefile. It contains all the rules used to + # build the library with the previous variables defined. + # + include $(TOP_DIR)/builds/$(PROJECT).mk + + + # The cleanup targets. + # + clean_project: clean_project_unix + distclean_project: distclean_project_unix + + + # This final rule is used to link all object files into a single library. + # It is part of the system-specific sub-Makefile because not all + # librarians accept a simple syntax like + # + # librarian library_file {list of object files} + # + $(PROJECT_LIBRARY): $(OBJECTS_LIST) + ifdef CLEAN_LIBRARY + -$(CLEAN_LIBRARY) $(NO_OUTPUT) + endif + $(LINK_LIBRARY) + + include $(TOP_DIR)/builds/unix/install.mk + +endif + + +# EOF diff --git a/builds/unix/unixddef.mk b/builds/unix/unixddef.mk new file mode 100644 index 0000000..130d6b0 --- /dev/null +++ b/builds/unix/unixddef.mk @@ -0,0 +1,45 @@ +# +# FreeType 2 configuration rules templates for +# development under Unix with no configure script (gcc only) +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +TOP_DIR := $(shell cd $(TOP_DIR); pwd) +OBJ_DIR := $(shell cd $(OBJ_DIR); pwd) + +PLATFORM := unix + +DELETE := rm -f +CAT := cat +SEP := / + +# we use a special devel ftoption.h +DEVEL_DIR := $(TOP_DIR)/devel + + +# library file name +# +LIBRARY := lib$(PROJECT) + + +# The directory where all library files are placed. +# +# By default, this is the same as $(OBJ_DIR); however, this can be changed +# to suit particular needs. +# +LIB_DIR := $(OBJ_DIR) + + +NO_OUTPUT := 2> /dev/null + +# EOF diff --git a/builds/vms/ftconfig.h b/builds/vms/ftconfig.h new file mode 100644 index 0000000..62fadac --- /dev/null +++ b/builds/vms/ftconfig.h @@ -0,0 +1,344 @@ +/***************************************************************************/ +/* */ +/* ftconfig.h */ +/* */ +/* VMS-specific configuration file (specification only). */ +/* */ +/* Copyright 1996-2004, 2006-2008, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This header file contains a number of macro definitions that are used */ + /* by the rest of the engine. Most of the macros here are automatically */ + /* determined at compile time, and you should not need to change it to */ + /* port FreeType, except to compile the library with a non-ANSI */ + /* compiler. */ + /* */ + /* Note however that if some specific modifications are needed, we */ + /* advise you to place a modified copy in your build directory. */ + /* */ + /* The build directory is usually `freetype/builds/', and */ + /* contains system-specific files that are always included first when */ + /* building the library. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTCONFIG_H__ +#define __FTCONFIG_H__ + + + /* Include the header file containing all developer build options */ +#include +#include FT_CONFIG_OPTIONS_H +#include FT_CONFIG_STANDARD_LIBRARY_H + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /* */ + /* PLATFORM-SPECIFIC CONFIGURATION MACROS */ + /* */ + /* These macros can be toggled to suit a specific system. The current */ + /* ones are defaults used to compile FreeType in an ANSI C environment */ + /* (16bit compilers are also supported). Copy this file to your own */ + /* `freetype/builds/' directory, and edit it to port the engine. */ + /* */ + /*************************************************************************/ + + +#define HAVE_UNISTD_H 1 +#define HAVE_FCNTL_H 1 + +#define SIZEOF_INT 4 +#define SIZEOF_LONG 4 + +#define FT_SIZEOF_INT 4 +#define FT_SIZEOF_LONG 4 + +#define FT_CHAR_BIT 8 + + + /* FT_UNUSED is a macro used to indicate that a given parameter is not */ + /* used -- this is only used to get rid of unpleasant compiler warnings */ +#ifndef FT_UNUSED +#define FT_UNUSED( arg ) ( (arg) = (arg) ) +#endif + + + /*************************************************************************/ + /* */ + /* AUTOMATIC CONFIGURATION MACROS */ + /* */ + /* These macros are computed from the ones defined above. Don't touch */ + /* their definition, unless you know precisely what you are doing. No */ + /* porter should need to mess with them. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Mac support */ + /* */ + /* This is the only necessary change, so it is defined here instead */ + /* providing a new configuration file. */ + /* */ +#if defined( __APPLE__ ) || ( defined( __MWERKS__ ) && defined( macintosh ) ) + /* no Carbon frameworks for 64bit 10.4.x */ + /* AvailabilityMacros.h is available since Mac OS X 10.2, */ + /* so guess the system version by maximum errno before inclusion */ +#include +#ifdef ECANCELED /* defined since 10.2 */ +#include "AvailabilityMacros.h" +#endif +#if defined( __LP64__ ) && \ + ( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 ) +#undef FT_MACINTOSH +#endif + +#elif defined( __SC__ ) || defined( __MRC__ ) + /* Classic MacOS compilers */ +#include "ConditionalMacros.h" +#if TARGET_OS_MAC +#define FT_MACINTOSH 1 +#endif + +#endif + + + /*************************************************************************/ + /* */ + /* IntN types */ + /* */ + /* Used to guarantee the size of some specific integers. */ + /* */ + typedef signed short FT_Int16; + typedef unsigned short FT_UInt16; + +#if FT_SIZEOF_INT == 4 + + typedef signed int FT_Int32; + typedef unsigned int FT_UInt32; + +#elif FT_SIZEOF_LONG == 4 + + typedef signed long FT_Int32; + typedef unsigned long FT_UInt32; + +#else +#error "no 32bit type found -- please check your configuration files" +#endif + + /* look up an integer type that is at least 32 bits */ +#if FT_SIZEOF_INT >= 4 + + typedef int FT_Fast; + typedef unsigned int FT_UFast; + +#elif FT_SIZEOF_LONG >= 4 + + typedef long FT_Fast; + typedef unsigned long FT_UFast; + +#endif + + + /* determine whether we have a 64-bit int type for platforms without */ + /* Autoconf */ +#if FT_SIZEOF_LONG == 8 + + /* FT_LONG64 must be defined if a 64-bit type is available */ +#define FT_LONG64 +#define FT_INT64 long + +#elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */ + + /* this compiler provides the __int64 type */ +#define FT_LONG64 +#define FT_INT64 __int64 + +#elif defined( __BORLANDC__ ) /* Borland C++ */ + + /* XXXX: We should probably check the value of __BORLANDC__ in order */ + /* to test the compiler version. */ + + /* this compiler provides the __int64 type */ +#define FT_LONG64 +#define FT_INT64 __int64 + +#elif defined( __WATCOMC__ ) /* Watcom C++ */ + + /* Watcom doesn't provide 64-bit data types */ + +#elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */ + +#define FT_LONG64 +#define FT_INT64 long long int + +#elif defined( __GNUC__ ) + + /* GCC provides the `long long' type */ +#define FT_LONG64 +#define FT_INT64 long long int + +#endif /* FT_SIZEOF_LONG == 8 */ + + +#define FT_BEGIN_STMNT do { +#define FT_END_STMNT } while ( 0 ) +#define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT + + + /*************************************************************************/ + /* */ + /* A 64-bit data type will create compilation problems if you compile */ + /* in strict ANSI mode. To avoid them, we disable their use if */ + /* __STDC__ is defined. You can however ignore this rule by */ + /* defining the FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */ + /* */ +#if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 ) + +#ifdef __STDC__ + + /* undefine the 64-bit macros in strict ANSI compilation mode */ +#undef FT_LONG64 +#undef FT_INT64 + +#endif /* __STDC__ */ + +#endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */ + + +#ifdef FT_MAKE_OPTION_SINGLE_OBJECT + +#define FT_LOCAL( x ) static x +#define FT_LOCAL_DEF( x ) static x + +#else + +#ifdef __cplusplus +#define FT_LOCAL( x ) extern "C" x +#define FT_LOCAL_DEF( x ) extern "C" x +#else +#define FT_LOCAL( x ) extern x +#define FT_LOCAL_DEF( x ) x +#endif + +#endif /* FT_MAKE_OPTION_SINGLE_OBJECT */ + + +#ifndef FT_BASE + +#ifdef __cplusplus +#define FT_BASE( x ) extern "C" x +#else +#define FT_BASE( x ) extern x +#endif + +#endif /* !FT_BASE */ + + +#ifndef FT_BASE_DEF + +#ifdef __cplusplus +#define FT_BASE_DEF( x ) extern "C" x +#else +#define FT_BASE_DEF( x ) extern x +#endif + +#endif /* !FT_BASE_DEF */ + + +#ifndef FT_EXPORT + +#ifdef __cplusplus +#define FT_EXPORT( x ) extern "C" x +#else +#define FT_EXPORT( x ) extern x +#endif + +#endif /* !FT_EXPORT */ + + +#ifndef FT_EXPORT_DEF + +#ifdef __cplusplus +#define FT_EXPORT_DEF( x ) extern "C" x +#else +#define FT_EXPORT_DEF( x ) extern x +#endif + +#endif /* !FT_EXPORT_DEF */ + + +#ifndef FT_EXPORT_VAR + +#ifdef __cplusplus +#define FT_EXPORT_VAR( x ) extern "C" x +#else +#define FT_EXPORT_VAR( x ) extern x +#endif + +#endif /* !FT_EXPORT_VAR */ + + /* The following macros are needed to compile the library with a */ + /* C++ compiler and with 16bit compilers. */ + /* */ + + /* This is special. Within C++, you must specify `extern "C"' for */ + /* functions which are used via function pointers, and you also */ + /* must do that for structures which contain function pointers to */ + /* assure C linkage -- it's not possible to have (local) anonymous */ + /* functions which are accessed by (global) function pointers. */ + /* */ + /* */ + /* FT_CALLBACK_DEF is used to _define_ a callback function. */ + /* */ + /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ + /* contains pointers to callback functions. */ + /* */ + /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */ + /* that contains pointers to callback functions. */ + /* */ + /* */ + /* Some 16bit compilers have to redefine these macros to insert */ + /* the infamous `_cdecl' or `__fastcall' declarations. */ + /* */ +#ifndef FT_CALLBACK_DEF +#ifdef __cplusplus +#define FT_CALLBACK_DEF( x ) extern "C" x +#else +#define FT_CALLBACK_DEF( x ) static x +#endif +#endif /* FT_CALLBACK_DEF */ + +#ifndef FT_CALLBACK_TABLE +#ifdef __cplusplus +#define FT_CALLBACK_TABLE extern "C" +#define FT_CALLBACK_TABLE_DEF extern "C" +#else +#define FT_CALLBACK_TABLE extern +#define FT_CALLBACK_TABLE_DEF /* nothing */ +#endif +#endif /* FT_CALLBACK_TABLE */ + + +FT_END_HEADER + + +#endif /* __FTCONFIG_H__ */ + + +/* END */ diff --git a/builds/vms/ftsystem.c b/builds/vms/ftsystem.c new file mode 100644 index 0000000..fb35967 --- /dev/null +++ b/builds/vms/ftsystem.c @@ -0,0 +1,328 @@ +/***************************************************************************/ +/* */ +/* ftsystem.c */ +/* */ +/* VMS-specific FreeType low-level system interface (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include + /* we use our special ftconfig.h file, not the standard one */ +#include +#include FT_INTERNAL_DEBUG_H +#include FT_SYSTEM_H +#include FT_ERRORS_H +#include FT_TYPES_H +#include FT_INTERNAL_OBJECTS_H + + /* memory-mapping includes and definitions */ +#ifdef HAVE_UNISTD_H +#include +#endif + +#include +#ifndef MAP_FILE +#define MAP_FILE 0x00 +#endif + +#ifdef MUNMAP_USES_VOIDP +#define MUNMAP_ARG_CAST void * +#else +#define MUNMAP_ARG_CAST char * +#endif + +#ifdef NEED_MUNMAP_DECL + +#ifdef __cplusplus + extern "C" +#else + extern +#endif + int + munmap( char* addr, + int len ); + +#define MUNMAP_ARG_CAST char * + +#endif /* NEED_DECLARATION_MUNMAP */ + + +#include +#include + +#ifdef HAVE_FCNTL_H +#include +#endif + +#include +#include +#include + + + /*************************************************************************/ + /* */ + /* MEMORY MANAGEMENT INTERFACE */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* ft_alloc */ + /* */ + /* */ + /* The memory allocation function. */ + /* */ + /* */ + /* memory :: A pointer to the memory object. */ + /* */ + /* size :: The requested size in bytes. */ + /* */ + /* */ + /* The address of newly allocated block. */ + /* */ + FT_CALLBACK_DEF( void* ) + ft_alloc( FT_Memory memory, + long size ) + { + FT_UNUSED( memory ); + + return malloc( size ); + } + + + /*************************************************************************/ + /* */ + /* */ + /* ft_realloc */ + /* */ + /* */ + /* The memory reallocation function. */ + /* */ + /* */ + /* memory :: A pointer to the memory object. */ + /* */ + /* cur_size :: The current size of the allocated memory block. */ + /* */ + /* new_size :: The newly requested size in bytes. */ + /* */ + /* block :: The current address of the block in memory. */ + /* */ + /* */ + /* The address of the reallocated memory block. */ + /* */ + FT_CALLBACK_DEF( void* ) + ft_realloc( FT_Memory memory, + long cur_size, + long new_size, + void* block ) + { + FT_UNUSED( memory ); + FT_UNUSED( cur_size ); + + return realloc( block, new_size ); + } + + + /*************************************************************************/ + /* */ + /* */ + /* ft_free */ + /* */ + /* */ + /* The memory release function. */ + /* */ + /* */ + /* memory :: A pointer to the memory object. */ + /* */ + /* block :: The address of block in memory to be freed. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_free( FT_Memory memory, + void* block ) + { + FT_UNUSED( memory ); + + free( block ); + } + + + /*************************************************************************/ + /* */ + /* RESOURCE MANAGEMENT INTERFACE */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_io + + /* We use the macro STREAM_FILE for convenience to extract the */ + /* system-specific stream handle from a given FreeType stream object */ +#define STREAM_FILE( stream ) ( (FILE*)stream->descriptor.pointer ) + + + /*************************************************************************/ + /* */ + /* */ + /* ft_close_stream */ + /* */ + /* */ + /* The function to close a stream. */ + /* */ + /* */ + /* stream :: A pointer to the stream object. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_close_stream( FT_Stream stream ) + { + munmap( (MUNMAP_ARG_CAST)stream->descriptor.pointer, stream->size ); + + stream->descriptor.pointer = NULL; + stream->size = 0; + stream->base = 0; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Error ) + FT_Stream_Open( FT_Stream stream, + const char* filepathname ) + { + int file; + struct stat stat_buf; + + + if ( !stream ) + return FT_Err_Invalid_Stream_Handle; + + /* open the file */ + file = open( filepathname, O_RDONLY ); + if ( file < 0 ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not open `%s'\n", filepathname )); + return FT_Err_Cannot_Open_Resource; + } + + if ( fstat( file, &stat_buf ) < 0 ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not `fstat' file `%s'\n", filepathname )); + goto Fail_Map; + } + + stream->size = stat_buf.st_size; + if ( !stream->size ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " opened `%s' but zero-sized\n", filepathname )); + goto Fail_Map; + } + + stream->pos = 0; + stream->base = (unsigned char *)mmap( NULL, + stream->size, + PROT_READ, + MAP_FILE | MAP_PRIVATE, + file, + 0 ); + + if ( (long)stream->base == -1 ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not `mmap' file `%s'\n", filepathname )); + goto Fail_Map; + } + + close( file ); + + stream->descriptor.pointer = stream->base; + stream->pathname.pointer = (char*)filepathname; + + stream->close = ft_close_stream; + stream->read = 0; + + FT_TRACE1(( "FT_Stream_Open:" )); + FT_TRACE1(( " opened `%s' (%d bytes) successfully\n", + filepathname, stream->size )); + + return FT_Err_Ok; + + Fail_Map: + close( file ); + + stream->base = NULL; + stream->size = 0; + stream->pos = 0; + + return FT_Err_Cannot_Open_Stream; + } + + +#ifdef FT_DEBUG_MEMORY + + extern FT_Int + ft_mem_debug_init( FT_Memory memory ); + + extern void + ft_mem_debug_done( FT_Memory memory ); + +#endif + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Memory ) + FT_New_Memory( void ) + { + FT_Memory memory; + + + memory = (FT_Memory)malloc( sizeof ( *memory ) ); + if ( memory ) + { + memory->user = 0; + memory->alloc = ft_alloc; + memory->realloc = ft_realloc; + memory->free = ft_free; +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_init( memory ); +#endif + } + + return memory; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( void ) + FT_Done_Memory( FT_Memory memory ) + { +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_done( memory ); +#endif + memory->free( memory, memory ); + } + + +/* END */ diff --git a/builds/win32/detect.mk b/builds/win32/detect.mk new file mode 100644 index 0000000..1906539 --- /dev/null +++ b/builds/win32/detect.mk @@ -0,0 +1,183 @@ +# +# FreeType 2 configuration file to detect a Win32 host platform. +# + + +# Copyright 1996-2000, 2003, 2004, 2006, 2007 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +.PHONY: setup + + +ifeq ($(PLATFORM),ansi) + + # Detecting Windows NT is easy, as the OS variable must be defined and + # contains `Windows_NT'. This also works with Windows 2000 and XP. + # + ifeq ($(OS),Windows_NT) + + PLATFORM := win32 + + else + + # Detecting Windows 9X + + # We used to run the `ver' command to see if its output contains the + # word `Windows'. If this is true, we are running Windows 95 or later: + # + # ifdef COMSPEC + # # First, check if we have the COMSPEC environment variable, which + # # indicates we can use COMMAND.COM's internal commands + # is_windows := $(findstring Windows,$(strip $(shell ver))) + # endif + # + # Unfortunately, this also detects the case when one is running + # DOS 7.x (the MS-DOS version that lies below Windows) without actually + # launching the GUI. + # + # A better test is to check whether there are both the environment + # variables `winbootdir' and `windir'. The first indicates an + # underlying DOS 7.x, while the second is set only if win32 is available. + # + # Note that on Windows NT, such an environment variable will not be seen + # from DOS-based tools like DJGPP's make; this is not actually a problem + # since NT is detected independently above. But do not try to be clever! + # + ifdef winbootdir + ifdef windir + + PLATFORM := win32 + + endif + endif + + endif # test NT + +endif # test PLATFORM ansi + +ifeq ($(PLATFORM),win32) + + DELETE := del + CAT := type + SEP := $(BACKSLASH) + + # Setting COPY is a bit trickier. Plain COPY on NT will not work + # correctly, because it will uppercase 8.3 filenames, creating a + # `CONFIG.MK' file which isn't found later on by `make'. + # Since we do not want that, we need to force execution of CMD.EXE. + # Unfortunately, CMD.EXE is not available on Windows 9X. + # So we need to hack. + # + # Kudos to Eli Zaretskii (DJGPP guru) that helped debug it. + # Details are available in threads of the freetype mailing list + # (2004-11-11), and then in the devel mailing list (2004-11-20 to -23). + # + ifeq ($(OS),Windows_NT) + COPY := cmd.exe /c copy + else + COPY := copy + endif # test NT + + + # gcc Makefile by default + CONFIG_FILE := w32-gcc.mk + ifeq ($(firstword $(CC)),cc) + CC := gcc + endif + + ifneq ($(findstring list,$(MAKECMDGOALS)),) # test for the "list" target + dump_target_list: + @echo ÿ + @echo $(PROJECT_TITLE) build system -- supported compilers + @echo ÿ + @echo Several command-line compilers are supported on Win32: + @echo ÿ + @echo ÿÿmake setupÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿgcc (with Mingw) + @echo ÿÿmake setup visualcÿÿÿÿÿÿÿÿÿÿÿÿÿMicrosoft Visual C++ + @echo ÿÿmake setup bcc32ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿBorland C/C++ + @echo ÿÿmake setup lccÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿWin32-LCC + @echo ÿÿmake setup intelcÿÿÿÿÿÿÿÿÿÿÿÿÿÿIntel C/C++ + @echo ÿ + + setup: dump_target_list + .PHONY: dump_target_list list + else + setup: dos_setup + endif + + # additionally, we provide hooks for various other compilers + # + ifneq ($(findstring visualc,$(MAKECMDGOALS)),) # Visual C/C++ + CONFIG_FILE := w32-vcc.mk + CC := cl + visualc: setup + .PHONY: visualc + endif + + ifneq ($(findstring intelc,$(MAKECMDGOALS)),) # Intel C/C++ + CONFIG_FILE := w32-intl.mk + CC := cl + visualc: setup + .PHONY: intelc + endif + + ifneq ($(findstring watcom,$(MAKECMDGOALS)),) # Watcom C/C++ + CONFIG_FILE := w32-wat.mk + CC := wcc386 + watcom: setup + .PHONY: watcom + endif + + ifneq ($(findstring visualage,$(MAKECMDGOALS)),) # Visual Age C++ + CONFIG_FILE := w32-icc.mk + CC := icc + visualage: setup + .PHONY: visualage + endif + + ifneq ($(findstring lcc,$(MAKECMDGOALS)),) # LCC-Win32 + CONFIG_FILE := w32-lcc.mk + CC := lcc + lcc: setup + .PHONY: lcc + endif + + ifneq ($(findstring mingw32,$(MAKECMDGOALS)),) # mingw32 + CONFIG_FILE := w32-mingw32.mk + CC := gcc + mingw32: setup + .PHONY: mingw32 + endif + + ifneq ($(findstring bcc32,$(MAKECMDGOALS)),) # Borland C++ + CONFIG_FILE := w32-bcc.mk + CC := bcc32 + bcc32: setup + .PHONY: bcc32 + endif + + ifneq ($(findstring devel-bcc,$(MAKECMDGOALS)),) # development target + CONFIG_FILE := w32-bccd.mk + CC := bcc32 + devel-bcc: setup + .PHONY: devel-bcc + endif + + ifneq ($(findstring devel-gcc,$(MAKECMDGOALS)),) # development target + CONFIG_FILE := w32-dev.mk + CC := gcc + devel-gcc: setup + .PHONY: devel-gcc + endif + +endif # test PLATFORM win32 + + +# EOF diff --git a/builds/win32/ftdebug.c b/builds/win32/ftdebug.c new file mode 100644 index 0000000..d1ca15a --- /dev/null +++ b/builds/win32/ftdebug.c @@ -0,0 +1,214 @@ +/***************************************************************************/ +/* */ +/* ftdebug.c */ +/* */ +/* Debugging and logging component for Win32 (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This component contains various macros and functions used to ease the */ + /* debugging of the FreeType engine. Its main purpose is in assertion */ + /* checking, tracing, and error detection. */ + /* */ + /* There are now three debugging modes: */ + /* */ + /* - trace mode */ + /* */ + /* Error and trace messages are sent to the log file (which can be the */ + /* standard error output). */ + /* */ + /* - error mode */ + /* */ + /* Only error messages are generated. */ + /* */ + /* - release mode: */ + /* */ + /* No error message is sent or generated. The code is free from any */ + /* debugging parts. */ + /* */ + /*************************************************************************/ + + +#include +#include FT_INTERNAL_DEBUG_H + + +#ifdef FT_DEBUG_LEVEL_ERROR + + +#include +#include +#include + +#include + + + FT_BASE_DEF( void ) + FT_Message( const char* fmt, ... ) + { + static char buf[8192]; + va_list ap; + + + va_start( ap, fmt ); + vprintf( fmt, ap ); + /* send the string to the debugger as well */ + vsprintf( buf, fmt, ap ); + OutputDebugStringA( buf ); + va_end( ap ); + } + + + FT_BASE_DEF( void ) + FT_Panic( const char* fmt, ... ) + { + static char buf[8192]; + va_list ap; + + + va_start( ap, fmt ); + vsprintf( buf, fmt, ap ); + OutputDebugStringA( buf ); + va_end( ap ); + + exit( EXIT_FAILURE ); + } + + +#ifdef FT_DEBUG_LEVEL_TRACE + + + /* array of trace levels, initialized to 0 */ + int ft_trace_levels[trace_count]; + + /* define array of trace toggle names */ +#define FT_TRACE_DEF( x ) #x , + + static const char* ft_trace_toggles[trace_count + 1] = + { +#include FT_INTERNAL_TRACE_H + NULL + }; + +#undef FT_TRACE_DEF + + + /*************************************************************************/ + /* */ + /* Initialize the tracing sub-system. This is done by retrieving the */ + /* value of the "FT2_DEBUG" environment variable. It must be a list of */ + /* toggles, separated by spaces, `;' or `,'. Example: */ + /* */ + /* "any:3 memory:6 stream:5" */ + /* */ + /* This will request that all levels be set to 3, except the trace level */ + /* for the memory and stream components which are set to 6 and 5, */ + /* respectively. */ + /* */ + /* See the file for details of the */ + /* available toggle names. */ + /* */ + /* The level must be between 0 and 6; 0 means quiet (except for serious */ + /* runtime errors), and 6 means _very_ verbose. */ + /* */ + FT_BASE_DEF( void ) + ft_debug_init( void ) + { + const char* ft2_debug = getenv( "FT2_DEBUG" ); + + + if ( ft2_debug ) + { + const char* p = ft2_debug; + const char* q; + + + for ( ; *p; p++ ) + { + /* skip leading whitespace and separators */ + if ( *p == ' ' || *p == '\t' || *p == ',' || *p == ';' || *p == '=' ) + continue; + + /* read toggle name, followed by ':' */ + q = p; + while ( *p && *p != ':' ) + p++; + + if ( *p == ':' && p > q ) + { + int n, i, len = p - q; + int level = -1, found = -1; + + + for ( n = 0; n < trace_count; n++ ) + { + const char* toggle = ft_trace_toggles[n]; + + + for ( i = 0; i < len; i++ ) + { + if ( toggle[i] != q[i] ) + break; + } + + if ( i == len && toggle[i] == 0 ) + { + found = n; + break; + } + } + + /* read level */ + p++; + if ( *p ) + { + level = *p++ - '0'; + if ( level < 0 || level > 7 ) + level = -1; + } + + if ( found >= 0 && level >= 0 ) + { + if ( found == trace_any ) + { + /* special case for "any" */ + for ( n = 0; n < trace_count; n++ ) + ft_trace_levels[n] = level; + } + else + ft_trace_levels[found] = level; + } + } + } + } + } + + +#else /* !FT_DEBUG_LEVEL_TRACE */ + + + FT_BASE_DEF( void ) + ft_debug_init( void ) + { + /* nothing */ + } + + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + +#endif /* FT_DEBUG_LEVEL_ERROR */ + + +/* END */ diff --git a/builds/win32/vc2005/freetype.sln b/builds/win32/vc2005/freetype.sln new file mode 100644 index 0000000..ec3345d --- /dev/null +++ b/builds/win32/vc2005/freetype.sln @@ -0,0 +1,31 @@ +Microsoft Visual Studio Solution File, Format Version 9.00 +# Visual Studio 2005 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "freetype", "freetype.vcproj", "{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + LIB Debug Multithreaded|Win32 = LIB Debug Multithreaded|Win32 + LIB Debug Singlethreaded|Win32 = LIB Debug Singlethreaded|Win32 + LIB Debug|Win32 = LIB Debug|Win32 + LIB Release Multithreaded|Win32 = LIB Release Multithreaded|Win32 + LIB Release Singlethreaded|Win32 = LIB Release Singlethreaded|Win32 + LIB Release|Win32 = LIB Release|Win32 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Win32.ActiveCfg = Debug Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Win32.Build.0 = Debug Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Win32.ActiveCfg = Debug Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Win32.Build.0 = Debug Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Win32.ActiveCfg = Debug|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Win32.Build.0 = Debug|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Win32.ActiveCfg = Release Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Win32.Build.0 = Release Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Win32.ActiveCfg = Release Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Win32.Build.0 = Release Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Win32.ActiveCfg = Release|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Win32.Build.0 = Release|Win32 + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection +EndGlobal diff --git a/builds/win32/vc2005/freetype.vcproj b/builds/win32/vc2005/freetype.vcproj new file mode 100644 index 0000000..6f17352 --- /dev/null +++ b/builds/win32/vc2005/freetype.vcproj @@ -0,0 +1,646 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/builds/win32/vc2005/index.html b/builds/win32/vc2005/index.html new file mode 100644 index 0000000..bc4291c --- /dev/null +++ b/builds/win32/vc2005/index.html @@ -0,0 +1,37 @@ + +
      + + FreeType 2 Project Files for VS.NET 2005 + + + +

      + FreeType 2 Project Files for VS.NET 2005 +

      + +

      This directory contains project files for Visual C++, named +freetype.vcproj, and Visual Studio, called freetype.sln. It +compiles the following libraries from the FreeType 2.4.9 sources:

      + +
        +
        +    freetype249.lib     - release build; single threaded
        +    freetype249_D.lib   - debug build;   single threaded
        +    freetype249MT.lib   - release build; multi-threaded
        +    freetype249MT_D.lib - debug build;   multi-threaded
        +
      + +

      Be sure to extract the files with the Windows (CR+LF) line endings. ZIP +archives are already stored this way, so no further action is required. If +you use some .tar.*z archives, be sure to configure your extracting +tool to convert the line endings. For example, with WinZip, you should activate the TAR +file smart CR/LF Conversion option. Alternatively, you may consider +using the unix2dos or u2d utilities that are floating +around, which specifically deal with this particular problem. + +

      Build directories are placed in the top-level objs +directory.

      + + + diff --git a/builds/win32/vc2008/freetype.sln b/builds/win32/vc2008/freetype.sln new file mode 100644 index 0000000..6c522f9 --- /dev/null +++ b/builds/win32/vc2008/freetype.sln @@ -0,0 +1,31 @@ +Microsoft Visual Studio Solution File, Format Version 10.00 +# Visual Studio 2008 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "freetype", "freetype.vcproj", "{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + LIB Debug Multithreaded|Win32 = LIB Debug Multithreaded|Win32 + LIB Debug Singlethreaded|Win32 = LIB Debug Singlethreaded|Win32 + LIB Debug|Win32 = LIB Debug|Win32 + LIB Release Multithreaded|Win32 = LIB Release Multithreaded|Win32 + LIB Release Singlethreaded|Win32 = LIB Release Singlethreaded|Win32 + LIB Release|Win32 = LIB Release|Win32 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Win32.ActiveCfg = Debug Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Win32.Build.0 = Debug Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Win32.ActiveCfg = Debug Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Win32.Build.0 = Debug Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Win32.ActiveCfg = Debug|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Win32.Build.0 = Debug|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Win32.ActiveCfg = Release Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Win32.Build.0 = Release Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Win32.ActiveCfg = Release Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Win32.Build.0 = Release Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Win32.ActiveCfg = Release|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Win32.Build.0 = Release|Win32 + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection +EndGlobal diff --git a/builds/win32/vc2008/freetype.vcproj b/builds/win32/vc2008/freetype.vcproj new file mode 100644 index 0000000..897c5e5 --- /dev/null +++ b/builds/win32/vc2008/freetype.vcproj @@ -0,0 +1,2180 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/builds/win32/vc2008/index.html b/builds/win32/vc2008/index.html new file mode 100644 index 0000000..9ad33ea --- /dev/null +++ b/builds/win32/vc2008/index.html @@ -0,0 +1,37 @@ + +
      + + FreeType 2 Project Files for VS.NET 2008 + + + +

      + FreeType 2 Project Files for VS.NET 2008 +

      + +

      This directory contains project files for Visual C++, named +freetype.vcproj, and Visual Studio, called freetype.sln. It +compiles the following libraries from the FreeType 2.4.9 sources:

      + +
        +
        +    freetype249.lib     - release build; single threaded
        +    freetype249_D.lib   - debug build;   single threaded
        +    freetype249MT.lib   - release build; multi-threaded
        +    freetype249MT_D.lib - debug build;   multi-threaded
        +
      + +

      Be sure to extract the files with the Windows (CR+LF) line endings. ZIP +archives are already stored this way, so no further action is required. If +you use some .tar.*z archives, be sure to configure your extracting +tool to convert the line endings. For example, with WinZip, you should activate the TAR +file smart CR/LF Conversion option. Alternatively, you may consider +using the unix2dos or u2d utilities that are floating +around, which specifically deal with this particular problem. + +

      Build directories are placed in the top-level objs +directory.

      + + + diff --git a/builds/win32/vc2010/freetype.sln b/builds/win32/vc2010/freetype.sln new file mode 100644 index 0000000..3439f62 --- /dev/null +++ b/builds/win32/vc2010/freetype.sln @@ -0,0 +1,32 @@ + +Microsoft Visual Studio Solution File, Format Version 11.00 +# Visual Studio 2010 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "freetype", "freetype.vcxproj", "{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug Multithreaded|Win32 = Debug Multithreaded|Win32 + Debug Singlethreaded|Win32 = Debug Singlethreaded|Win32 + Debug|Win32 = Debug|Win32 + Release Multithreaded|Win32 = Release Multithreaded|Win32 + Release Singlethreaded|Win32 = Release Singlethreaded|Win32 + Release|Win32 = Release|Win32 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Multithreaded|Win32.ActiveCfg = Debug Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Multithreaded|Win32.Build.0 = Debug Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Singlethreaded|Win32.ActiveCfg = Debug Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Singlethreaded|Win32.Build.0 = Debug Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|Win32.ActiveCfg = Debug|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|Win32.Build.0 = Debug|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Multithreaded|Win32.ActiveCfg = Release Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Multithreaded|Win32.Build.0 = Release Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Singlethreaded|Win32.ActiveCfg = Release Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Singlethreaded|Win32.Build.0 = Release Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|Win32.ActiveCfg = Release|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|Win32.Build.0 = Release|Win32 + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection +EndGlobal diff --git a/builds/win32/vc2010/freetype.vcxproj b/builds/win32/vc2010/freetype.vcxproj new file mode 100644 index 0000000..e88c45f --- /dev/null +++ b/builds/win32/vc2010/freetype.vcxproj @@ -0,0 +1,832 @@ + + + + + Debug Multithreaded + Win32 + + + Debug Singlethreaded + Win32 + + + Debug + Win32 + + + Release Multithreaded + Win32 + + + Release Singlethreaded + Win32 + + + Release + Win32 + + + + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B} + + + + StaticLibrary + false + MultiByte + + + StaticLibrary + false + MultiByte + + + StaticLibrary + false + MultiByte + + + StaticLibrary + false + MultiByte + + + StaticLibrary + false + MultiByte + + + StaticLibrary + false + MultiByte + + + + + + <_ProjectFileVersion>10.0.30319.1 + .\..\..\..\objs\win32\vc2010\ + .\..\..\..\objs\release\ + 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      + + FreeType 2 Project Files for VS.NET 2010 + + + +

      + FreeType 2 Project Files for VS.NET 2010 +

      + +

      This directory contains a project file for Visual C++, named +freetype.vcxproj, and Visual Studio, called freetype.sln. It +compiles the following libraries from the FreeType 2.4.9 sources:

      + +
        +
        +    freetype249.lib     - release build; single threaded
        +    freetype249_D.lib   - debug build;   single threaded
        +    freetype249MT.lib   - release build; multi-threaded
        +    freetype249MT_D.lib - debug build;   multi-threaded
        +
      + +

      Be sure to extract the files with the Windows (CR+LF) line endings. ZIP +archives are already stored this way, so no further action is required. If +you use some .tar.*z archives, be sure to configure your extracting +tool to convert the line endings. For example, with WinZip, you should activate the TAR +file smart CR/LF Conversion option. Alternatively, you may consider +using the unix2dos or u2d utilities that are floating +around, which specifically deal with this particular problem. + +

      Build directories are placed in the top-level objs +directory.

      + + + diff --git a/builds/win32/visualc/freetype.dsp b/builds/win32/visualc/freetype.dsp new file mode 100644 index 0000000..274a763 --- /dev/null +++ b/builds/win32/visualc/freetype.dsp @@ -0,0 +1,400 @@ +# Microsoft Developer Studio Project File - Name="freetype" - Package Owner=<4> +# Microsoft Developer Studio Generated Build File, Format Version 6.00 +# ** DO NOT EDIT ** + +# TARGTYPE "Win32 (x86) Static Library" 0x0104 + +CFG=freetype - Win32 Debug Singlethreaded +!MESSAGE This is not a valid makefile. To build this project using NMAKE, +!MESSAGE use the Export Makefile command and run +!MESSAGE +!MESSAGE NMAKE /f "freetype.mak". +!MESSAGE +!MESSAGE You can specify a configuration when running NMAKE +!MESSAGE by defining the macro CFG on the command line. For example: +!MESSAGE +!MESSAGE NMAKE /f "freetype.mak" CFG="freetype - Win32 Debug Singlethreaded" +!MESSAGE +!MESSAGE Possible choices for configuration are: +!MESSAGE +!MESSAGE "freetype - Win32 Release" (based on "Win32 (x86) Static Library") +!MESSAGE "freetype - Win32 Debug" (based on "Win32 (x86) Static Library") +!MESSAGE "freetype - Win32 Debug Multithreaded" (based on "Win32 (x86) Static Library") +!MESSAGE "freetype - Win32 Release Multithreaded" (based on "Win32 (x86) Static Library") +!MESSAGE "freetype - Win32 Release Singlethreaded" (based on "Win32 (x86) Static Library") +!MESSAGE "freetype - Win32 Debug Singlethreaded" (based on "Win32 (x86) Static Library") +!MESSAGE + +# Begin Project +# PROP AllowPerConfigDependencies 0 +# PROP Scc_ProjName "" +# PROP Scc_LocalPath "" +CPP=cl.exe +RSC=rc.exe + +!IF "$(CFG)" == "freetype - Win32 Release" + +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 0 +# PROP BASE Output_Dir "Release" +# PROP BASE Intermediate_Dir "Release" +# PROP BASE Target_Dir "" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 0 +# PROP Output_Dir "..\..\..\objs\release" +# PROP Intermediate_Dir "..\..\..\objs\release" +# PROP Target_Dir "" +# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_MBCS" /D "_LIB" /YX /FD /c +# ADD CPP /MD /Za /W4 /GX /O2 /I "..\..\..\include" /D "NDEBUG" /D "WIN32" /D "_MBCS" /D "_LIB" /D "FT2_BUILD_LIBRARY" /FD /c +# SUBTRACT CPP /nologo /Z /YX +# ADD BASE RSC /l 0x409 /d "NDEBUG" +# ADD RSC /l 0x409 /d "NDEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LIB32=link.exe -lib +# ADD BASE LIB32 /nologo +# ADD LIB32 /nologo /out:"..\..\..\objs\freetype249.lib" + +!ELSEIF "$(CFG)" == "freetype - Win32 Debug" + +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 1 +# PROP BASE Output_Dir "Debug" +# PROP BASE Intermediate_Dir "Debug" +# PROP BASE Target_Dir "" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 1 +# PROP Output_Dir "..\..\..\objs\debug" +# PROP Intermediate_Dir "..\..\..\objs\debug" +# PROP Target_Dir "" +# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /YX /FD /GZ /c +# ADD CPP /MDd /Za /W4 /GX /Z7 /Od /I "..\..\..\include" /D "_DEBUG" /D "FT_DEBUG_LEVEL_ERROR" /D "FT_DEBUG_LEVEL_TRACE" /D "WIN32" /D "_MBCS" /D "_LIB" /D "FT2_BUILD_LIBRARY" /FD /GZ /c +# SUBTRACT CPP /nologo /X /YX +# ADD BASE RSC /l 0x409 /d "_DEBUG" +# ADD RSC /l 0x409 /d "_DEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LIB32=link.exe -lib +# ADD BASE LIB32 /nologo +# ADD LIB32 /nologo /out:"..\..\..\objs\freetype249_D.lib" + +!ELSEIF "$(CFG)" == "freetype - Win32 Debug Multithreaded" + +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 1 +# PROP BASE Output_Dir "freetype___Win32_Debug_Multithreaded" +# PROP BASE Intermediate_Dir "freetype___Win32_Debug_Multithreaded" +# PROP BASE Target_Dir "" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 1 +# PROP Output_Dir "..\..\..\objs\debug_mt" +# PROP Intermediate_Dir "..\..\..\objs\debug_mt" +# PROP Target_Dir "" +# ADD BASE CPP /nologo /Za /W3 /Gm /GX /ZI /Od /I "..\freetype\include\\" /D "_DEBUG" /D "WIN32" /D "_MBCS" /D "_LIB" /D "FT_FLAT_COMPILE" /YX /FD /GZ /c +# SUBTRACT BASE CPP /X +# ADD CPP /MTd /Za /W4 /GX /Z7 /Od /I "..\..\..\include" /D "_DEBUG" /D "FT_DEBUG_LEVEL_ERROR" /D "FT_DEBUG_LEVEL_TRACE" /D "WIN32" /D "_MBCS" /D "_LIB" /D "FT2_BUILD_LIBRARY" /FD /GZ /c +# SUBTRACT CPP /nologo /X /YX +# ADD BASE RSC /l 0x409 /d "_DEBUG" +# ADD RSC /l 0x409 /d "_DEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LIB32=link.exe -lib +# ADD BASE LIB32 /nologo /out:"lib\freetype249_D.lib" +# ADD LIB32 /nologo /out:"..\..\..\objs\freetype249MT_D.lib" + +!ELSEIF "$(CFG)" == "freetype - Win32 Release Multithreaded" + +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 0 +# PROP BASE Output_Dir "freetype___Win32_Release_Multithreaded" +# PROP BASE Intermediate_Dir "freetype___Win32_Release_Multithreaded" +# PROP BASE Target_Dir "" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 0 +# PROP Output_Dir "..\..\..\objs\release_mt" +# PROP Intermediate_Dir "..\..\..\objs\release_mt" +# PROP Target_Dir "" +# ADD BASE CPP /nologo /Za /W3 /GX /O2 /I "..\freetype\include\\" /D "NDEBUG" /D "WIN32" /D "_MBCS" /D "_LIB" /D "FT_FLAT_COMPILE" /YX /FD /c +# ADD CPP /MT /Za /W4 /GX /O2 /I "..\..\..\include" /D "NDEBUG" /D "WIN32" /D "_MBCS" /D "_LIB" /D "FT2_BUILD_LIBRARY" /FD /c +# SUBTRACT CPP /nologo /Z /YX +# ADD BASE RSC /l 0x409 /d "NDEBUG" +# ADD RSC /l 0x409 /d "NDEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LIB32=link.exe -lib +# ADD BASE LIB32 /nologo /out:"lib\freetype249.lib" +# ADD LIB32 /nologo /out:"..\..\..\objs\freetype249MT.lib" + +!ELSEIF "$(CFG)" == "freetype - Win32 Release Singlethreaded" + +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 0 +# PROP BASE Output_Dir "freetype___Win32_Release_Singlethreaded" +# PROP BASE Intermediate_Dir "freetype___Win32_Release_Singlethreaded" +# PROP BASE Target_Dir "" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 0 +# PROP Output_Dir "..\..\..\objs\release_st" +# PROP Intermediate_Dir "..\..\..\objs\release_st" +# PROP Target_Dir "" +# ADD BASE CPP /nologo /MD /Za /W4 /GX /Zi /O2 /I "..\..\..\include" /D "NDEBUG" /D "WIN32" /D "_MBCS" /D "_LIB" /FD /c +# SUBTRACT BASE CPP /YX +# ADD CPP /Za /W4 /GX /O2 /I "..\..\..\include" /D "NDEBUG" /D "WIN32" /D "_MBCS" /D "_LIB" /D "FT2_BUILD_LIBRARY" /FD /c +# SUBTRACT CPP /nologo /Z /YX +# ADD BASE RSC /l 0x409 /d "NDEBUG" +# ADD RSC /l 0x409 /d "NDEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LIB32=link.exe -lib +# ADD BASE LIB32 /nologo /out:"..\..\..\objs\freetype249.lib" +# ADD LIB32 /out:"..\..\..\objs\freetype249ST.lib" +# SUBTRACT LIB32 /nologo + +!ELSEIF "$(CFG)" == "freetype - 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Win32 Release" +# Name "freetype - Win32 Debug" +# Name "freetype - Win32 Debug Multithreaded" +# Name "freetype - Win32 Release Multithreaded" +# Name "freetype - Win32 Release Singlethreaded" +# Name "freetype - Win32 Debug Singlethreaded" +# Begin Group "Source Files" + +# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat" +# Begin Source File + +SOURCE=..\..\..\src\autofit\autofit.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\bdf\bdf.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\cff\cff.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftbase.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftbbox.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftbdf.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftbitmap.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftfstype.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftgasp.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\cache\ftcache.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\ftdebug.c +# ADD CPP /Ze +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftglyph.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftgxval.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\gzip\ftgzip.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftinit.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\lzw\ftlzw.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftmm.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftotval.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftpfr.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftstroke.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftsynth.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftsystem.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\fttype1.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftwinfnt.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftxf86.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\pcf\pcf.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\pfr\pfr.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\psaux\psaux.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\pshinter\pshinter.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\psnames\psmodule.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\raster\raster.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\sfnt\sfnt.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\smooth\smooth.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\truetype\truetype.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\type1\type1.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\cid\type1cid.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\type42\type42.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\winfonts\winfnt.c +# SUBTRACT CPP /Fr +# End Source File +# End Group +# Begin Group "Header Files" + +# PROP Default_Filter "h;hpp;hxx;hm;inl" +# Begin Source File + +SOURCE=..\..\..\include\ft2build.h +# End Source File +# Begin Source File + +SOURCE=..\..\..\include\freetype\config\ftconfig.h +# End Source File +# Begin Source File + +SOURCE=..\..\..\include\freetype\config\ftheader.h +# End Source File +# Begin Source File + +SOURCE=..\..\..\include\freetype\config\ftmodule.h +# End Source File +# Begin Source File + +SOURCE=..\..\..\include\freetype\config\ftoption.h +# End Source File +# Begin Source File + +SOURCE=..\..\..\include\freetype\config\ftstdlib.h +# End Source File +# End Group +# End Target +# End Project diff --git a/builds/win32/visualc/freetype.dsw b/builds/win32/visualc/freetype.dsw new file mode 100644 index 0000000..b149e76 --- /dev/null +++ b/builds/win32/visualc/freetype.dsw @@ -0,0 +1,29 @@ +Microsoft Developer Studio Workspace File, Format Version 6.00 +# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE! + +############################################################################### + +Project: "freetype"=.\freetype.dsp - Package Owner=<4> + +Package=<5> +{{{ +}}} + +Package=<4> +{{{ +}}} + +############################################################################### + +Global: + +Package=<5> +{{{ +}}} + +Package=<3> +{{{ +}}} + +############################################################################### + diff --git a/builds/win32/visualc/freetype.sln b/builds/win32/visualc/freetype.sln new file mode 100644 index 0000000..1f64be2 --- /dev/null +++ b/builds/win32/visualc/freetype.sln @@ -0,0 +1,31 @@ +Microsoft Visual Studio Solution File, Format Version 9.00 +# Visual Studio 2005 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "freetype", "freetype.vcproj", "{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug Multithreaded|Win32 = Debug Multithreaded|Win32 + Debug Singlethreaded|Win32 = Debug Singlethreaded|Win32 + Debug|Win32 = Debug|Win32 + Release Multithreaded|Win32 = Release Multithreaded|Win32 + Release Singlethreaded|Win32 = Release Singlethreaded|Win32 + Release|Win32 = Release|Win32 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Multithreaded|Win32.ActiveCfg = Debug Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Multithreaded|Win32.Build.0 = Debug Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Singlethreaded|Win32.ActiveCfg = Debug Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Singlethreaded|Win32.Build.0 = Debug Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|Win32.ActiveCfg = Debug|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|Win32.Build.0 = Debug|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Multithreaded|Win32.ActiveCfg = Release Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Multithreaded|Win32.Build.0 = Release Multithreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Singlethreaded|Win32.ActiveCfg = Release Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Singlethreaded|Win32.Build.0 = Release Singlethreaded|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|Win32.ActiveCfg = Release|Win32 + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|Win32.Build.0 = Release|Win32 + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection +EndGlobal diff --git a/builds/win32/visualc/freetype.vcproj b/builds/win32/visualc/freetype.vcproj new file mode 100644 index 0000000..f0638da --- /dev/null +++ b/builds/win32/visualc/freetype.vcproj @@ -0,0 +1,2179 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/builds/win32/visualc/index.html b/builds/win32/visualc/index.html new file mode 100644 index 0000000..a32c95f --- /dev/null +++ b/builds/win32/visualc/index.html @@ -0,0 +1,37 @@ + +
      + + FreeType 2 Project Files for Visual C++ and VS.NET 2005 + + + +

      + FreeType 2 Project Files for Visual C++ and VS.NET 2005 +

      + +

      This directory contains project files for Visual C++, named +freetype.dsp, and Visual Studio, called freetype.sln. It +compiles the following libraries from the FreeType 2.4.9 sources:

      + +
        +
        +    freetype249.lib     - release build; single threaded
        +    freetype249_D.lib   - debug build;   single threaded
        +    freetype249MT.lib   - release build; multi-threaded
        +    freetype249MT_D.lib - debug build;   multi-threaded
        +
      + +

      Be sure to extract the files with the Windows (CR+LF) line endings. ZIP +archives are already stored this way, so no further action is required. If +you use some .tar.*z archives, be sure to configure your extracting +tool to convert the line endings. For example, with WinZip, you should activate the TAR +file smart CR/LF Conversion option. Alternatively, you may consider +using the unix2dos or u2d utilities that are floating +around, which specifically deal with this particular problem. + +

      Build directories are placed in the top-level objs +directory.

      + + + diff --git a/builds/win32/visualce/freetype.dsp b/builds/win32/visualce/freetype.dsp new file mode 100644 index 0000000..274a763 --- /dev/null +++ b/builds/win32/visualce/freetype.dsp @@ -0,0 +1,400 @@ +# Microsoft Developer Studio Project File - Name="freetype" - Package Owner=<4> +# Microsoft Developer Studio Generated Build File, Format Version 6.00 +# ** DO NOT EDIT ** + +# TARGTYPE "Win32 (x86) Static Library" 0x0104 + +CFG=freetype - Win32 Debug Singlethreaded +!MESSAGE This is not a valid makefile. To build this project using NMAKE, +!MESSAGE use the Export Makefile command and run +!MESSAGE +!MESSAGE NMAKE /f "freetype.mak". +!MESSAGE +!MESSAGE You can specify a configuration when running NMAKE +!MESSAGE by defining the macro CFG on the command line. For example: +!MESSAGE +!MESSAGE NMAKE /f "freetype.mak" CFG="freetype - Win32 Debug Singlethreaded" +!MESSAGE +!MESSAGE Possible choices for configuration are: +!MESSAGE +!MESSAGE "freetype - Win32 Release" (based on "Win32 (x86) Static Library") +!MESSAGE "freetype - Win32 Debug" (based on "Win32 (x86) Static Library") +!MESSAGE "freetype - Win32 Debug Multithreaded" (based on "Win32 (x86) Static Library") +!MESSAGE "freetype - Win32 Release Multithreaded" (based on "Win32 (x86) Static Library") +!MESSAGE "freetype - Win32 Release Singlethreaded" (based on "Win32 (x86) Static Library") +!MESSAGE "freetype - Win32 Debug Singlethreaded" (based on "Win32 (x86) Static Library") +!MESSAGE + +# Begin Project +# PROP AllowPerConfigDependencies 0 +# PROP Scc_ProjName "" +# PROP Scc_LocalPath "" +CPP=cl.exe +RSC=rc.exe + +!IF "$(CFG)" == "freetype - Win32 Release" + +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 0 +# PROP BASE Output_Dir "Release" +# PROP BASE Intermediate_Dir "Release" +# PROP BASE Target_Dir "" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 0 +# PROP Output_Dir "..\..\..\objs\release" +# PROP Intermediate_Dir "..\..\..\objs\release" +# PROP Target_Dir "" +# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_MBCS" /D "_LIB" /YX /FD /c +# ADD CPP /MD /Za /W4 /GX /O2 /I "..\..\..\include" /D "NDEBUG" /D "WIN32" /D "_MBCS" /D "_LIB" /D "FT2_BUILD_LIBRARY" /FD /c +# SUBTRACT CPP /nologo /Z /YX +# ADD BASE RSC /l 0x409 /d "NDEBUG" +# ADD RSC /l 0x409 /d "NDEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LIB32=link.exe -lib +# ADD BASE LIB32 /nologo +# ADD LIB32 /nologo /out:"..\..\..\objs\freetype249.lib" + +!ELSEIF "$(CFG)" == "freetype - Win32 Debug" + +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 1 +# PROP BASE Output_Dir "Debug" +# PROP BASE Intermediate_Dir "Debug" +# PROP BASE Target_Dir "" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 1 +# PROP Output_Dir "..\..\..\objs\debug" +# PROP Intermediate_Dir "..\..\..\objs\debug" +# PROP Target_Dir "" +# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /YX /FD /GZ /c +# ADD CPP /MDd /Za /W4 /GX /Z7 /Od /I "..\..\..\include" /D "_DEBUG" /D "FT_DEBUG_LEVEL_ERROR" /D "FT_DEBUG_LEVEL_TRACE" /D "WIN32" /D "_MBCS" /D "_LIB" /D "FT2_BUILD_LIBRARY" /FD /GZ /c +# SUBTRACT CPP /nologo /X /YX +# ADD BASE RSC /l 0x409 /d "_DEBUG" +# ADD RSC /l 0x409 /d "_DEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LIB32=link.exe -lib +# ADD BASE LIB32 /nologo +# ADD LIB32 /nologo /out:"..\..\..\objs\freetype249_D.lib" + +!ELSEIF "$(CFG)" == "freetype - Win32 Debug Multithreaded" + +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 1 +# PROP BASE Output_Dir "freetype___Win32_Debug_Multithreaded" +# PROP BASE Intermediate_Dir "freetype___Win32_Debug_Multithreaded" +# PROP BASE Target_Dir "" +# PROP Use_MFC 0 +# PROP Use_Debug_Libraries 1 +# PROP Output_Dir "..\..\..\objs\debug_mt" +# PROP Intermediate_Dir "..\..\..\objs\debug_mt" +# PROP Target_Dir "" +# ADD BASE CPP /nologo /Za /W3 /Gm /GX /ZI /Od /I "..\freetype\include\\" /D "_DEBUG" /D "WIN32" /D "_MBCS" /D "_LIB" /D "FT_FLAT_COMPILE" /YX /FD /GZ /c +# SUBTRACT BASE CPP /X +# ADD CPP /MTd /Za /W4 /GX /Z7 /Od /I "..\..\..\include" /D "_DEBUG" /D "FT_DEBUG_LEVEL_ERROR" /D "FT_DEBUG_LEVEL_TRACE" /D "WIN32" /D "_MBCS" /D "_LIB" /D "FT2_BUILD_LIBRARY" /FD /GZ /c +# SUBTRACT CPP /nologo /X /YX +# ADD BASE RSC /l 0x409 /d "_DEBUG" +# ADD RSC /l 0x409 /d "_DEBUG" +BSC32=bscmake.exe +# ADD BASE BSC32 /nologo +# ADD BSC32 /nologo +LIB32=link.exe -lib +# ADD BASE LIB32 /nologo /out:"lib\freetype249_D.lib" +# ADD LIB32 /nologo /out:"..\..\..\objs\freetype249MT_D.lib" + +!ELSEIF "$(CFG)" == "freetype - Win32 Release Multithreaded" + +# PROP BASE Use_MFC 0 +# PROP BASE Use_Debug_Libraries 0 +# PROP BASE Output_Dir "freetype___Win32_Release_Multithreaded" +# PROP BASE Intermediate_Dir "freetype___Win32_Release_Multithreaded" 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/out:"..\..\..\objs\freetype249ST_D.lib" + +!ENDIF + +# Begin Target + +# Name "freetype - Win32 Release" +# Name "freetype - Win32 Debug" +# Name "freetype - Win32 Debug Multithreaded" +# Name "freetype - Win32 Release Multithreaded" +# Name "freetype - Win32 Release Singlethreaded" +# Name "freetype - Win32 Debug Singlethreaded" +# Begin Group "Source Files" + +# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat" +# Begin Source File + +SOURCE=..\..\..\src\autofit\autofit.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\bdf\bdf.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\cff\cff.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftbase.c +# SUBTRACT CPP /Fr +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftbbox.c +# End Source File +# Begin Source File + +SOURCE=..\..\..\src\base\ftbdf.c +# End Source File +# Begin Source File + 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+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/builds/win32/visualce/index.html b/builds/win32/visualce/index.html new file mode 100644 index 0000000..eec6d61 --- /dev/null +++ b/builds/win32/visualce/index.html @@ -0,0 +1,47 @@ + +
      + + FreeType 2 Project Files for Visual C++ and VS.NET 2005 + (Pocket PC) + + + +

      + FreeType 2 Project Files for Visual C++ and VS.NET 2005 + (Pocket PC) +

      + +

      This directory contains project files for Visual C++, named +freetype.dsp, and Visual Studio, called freetype.sln for +the following targets: + +

        +
      • PPC/SP 2003 (Pocket PC 2003)
      • +
      • PPC/SP WM5 (Windows Mobile 5)
      • +
      • PPC/SP WM6 (Windows Mobile 6)
      • +
      + +It compiles the following libraries from the FreeType 2.4.9 sources:

      + +
        +
        +    freetype249.lib     - release build; single threaded
        +    freetype249_D.lib   - debug build;   single threaded
        +    freetype249MT.lib   - release build; multi-threaded
        +    freetype249MT_D.lib - debug build;   multi-threaded
        +
      + +

      Be sure to extract the files with the Windows (CR+LF) line endings. ZIP +archives are already stored this way, so no further action is required. If +you use some .tar.*z archives, be sure to configure your extracting +tool to convert the line endings. For example, with WinZip, you should activate the TAR +file smart CR/LF Conversion option. Alternatively, you may consider +using the unix2dos or u2d utilities that are floating +around, which specifically deal with this particular problem. + +

      Build directories are placed in the top-level objs +directory.

      + + + diff --git a/builds/win32/w32-bcc.mk b/builds/win32/w32-bcc.mk new file mode 100644 index 0000000..a9f48fc --- /dev/null +++ b/builds/win32/w32-bcc.mk @@ -0,0 +1,28 @@ +# +# FreeType 2 Borland C++ on Win32 +# + + +# Copyright 1996-2000, 2003, 2005 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +# default definitions of the export list +# +EXPORTS_LIST = $(OBJ_DIR)/freetype.def +EXPORTS_OPTIONS = /DEF:$(EXPORTS_LIST) +APINAMES_OPTIONS := -dfreetype.dll -wB + +include $(TOP_DIR)/builds/win32/win32-def.mk +include $(TOP_DIR)/builds/compiler/bcc.mk + +# include linking instructions +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/win32/w32-bccd.mk b/builds/win32/w32-bccd.mk new file mode 100644 index 0000000..51b15d9 --- /dev/null +++ b/builds/win32/w32-bccd.mk @@ -0,0 +1,26 @@ +# +# FreeType 2 Borland C++ on Win32 + debugging +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +DEVEL_DIR := $(TOP_DIR)/devel + +include $(TOP_DIR)/builds/win32/win32-def.mk + +include $(TOP_DIR)/builds/compiler/bcc-dev.mk + +# include linking instructions +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/win32/w32-dev.mk b/builds/win32/w32-dev.mk new file mode 100644 index 0000000..00cacb0 --- /dev/null +++ b/builds/win32/w32-dev.mk @@ -0,0 +1,32 @@ +# +# FreeType 2 configuration rules for Win32 + GCC +# +# Development version without optimizations. +# + + +# Copyright 1996-2000, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# NOTE: This version requires that GNU Make is invoked from the Windows +# Shell (_not_ Cygwin BASH)! +# + +DEVEL_DIR := $(TOP_DIR)/devel + +include $(TOP_DIR)/builds/win32/win32-def.mk + +include $(TOP_DIR)/builds/compiler/gcc-dev.mk + +# include linking instructions +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/win32/w32-gcc.mk b/builds/win32/w32-gcc.mk new file mode 100644 index 0000000..580afc5 --- /dev/null +++ b/builds/win32/w32-gcc.mk @@ -0,0 +1,31 @@ +# +# FreeType 2 configuration rules for Win32 + GCC +# + + +# Copyright 1996-2000, 2003, 2005 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +# default definitions of the export list +# +EXPORTS_LIST = $(OBJ_DIR)/freetype.def +EXPORTS_OPTIONS = $(EXPORTS_LIST) +APINAMES_OPTIONS := -dfreetype.dll -w + +# include Win32-specific definitions +include $(TOP_DIR)/builds/win32/win32-def.mk + +# include gcc-specific definitions +include $(TOP_DIR)/builds/compiler/gcc.mk + +# include linking instructions +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/win32/w32-icc.mk b/builds/win32/w32-icc.mk new file mode 100644 index 0000000..8819a1f --- /dev/null +++ b/builds/win32/w32-icc.mk @@ -0,0 +1,28 @@ +# +# FreeType 2 configuration rules for Win32 + IBM Visual Age C++ +# + + +# Copyright 1996-2000, 2005 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +# default definitions of the export list +# +EXPORTS_LIST = $(OBJ_DIR)/freetype.def +EXPORTS_OPTIONS = /DEF:$(EXPORTS_LIST) +APINAMES_OPTIONS := -dfreetype.dll -w + +include $(TOP_DIR)/builds/win32/win32-def.mk +include $(TOP_DIR)/builds/compiler/visualage.mk + +# include linking instructions +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/win32/w32-intl.mk b/builds/win32/w32-intl.mk new file mode 100644 index 0000000..ae62e1b --- /dev/null +++ b/builds/win32/w32-intl.mk @@ -0,0 +1,28 @@ +# +# FreeType 2 configuration rules for Intel C/C++ on Win32 +# + + +# Copyright 1996-2000, 2003, 2005 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +# default definitions of the export list +# +EXPORTS_LIST = $(OBJ_DIR)/freetype.def +EXPORTS_OPTIONS = /DEF:$(EXPORTS_LIST) +APINAMES_OPTIONS := -dfreetype.dll -w + +include $(TOP_DIR)/builds/win32/win32-def.mk +include $(TOP_DIR)/builds/compiler/intelc.mk + +# include linking instructions +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/win32/w32-lcc.mk b/builds/win32/w32-lcc.mk new file mode 100644 index 0000000..a147c4c --- /dev/null +++ b/builds/win32/w32-lcc.mk @@ -0,0 +1,24 @@ +# +# FreeType 2 configuration rules for Win32 + LCC +# + + +# Copyright 1996-2000 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +SEP := / +include $(TOP_DIR)/builds/win32/win32-def.mk +include $(TOP_DIR)/builds/compiler/win-lcc.mk + +# include linking instructions +include $(TOP_DIR)/builds/link_dos.mk + +# EOF + diff --git a/builds/win32/w32-mingw32.mk b/builds/win32/w32-mingw32.mk new file mode 100644 index 0000000..04e9e21 --- /dev/null +++ b/builds/win32/w32-mingw32.mk @@ -0,0 +1,33 @@ +# +# FreeType 2 configuration rules for mingw32 +# + + +# Copyright 1996-2000, 2003, 2005 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +# default definitions of the export list +# +EXPORTS_LIST = $(OBJ_DIR)/freetype.def +EXPORTS_OPTIONS = $(EXPORTS_LIST) +APINAMES_OPTIONS := -dfreetype.dll -w + +# include Win32-specific definitions +include $(TOP_DIR)/builds/win32/win32-def.mk + +LIBRARY := lib$(PROJECT) + +# include gcc-specific definitions +include $(TOP_DIR)/builds/compiler/gcc.mk + +# include linking instructions +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/win32/w32-vcc.mk b/builds/win32/w32-vcc.mk new file mode 100644 index 0000000..7fb8794 --- /dev/null +++ b/builds/win32/w32-vcc.mk @@ -0,0 +1,28 @@ +# +# FreeType 2 Visual C++ on Win32 +# + + +# Copyright 1996-2000, 2003, 2005 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +# definitions of the export list +# +EXPORTS_LIST = $(OBJ_DIR)/freetype.def +EXPORTS_OPTIONS = /DEF:$(EXPORTS_LIST) +APINAMES_OPTIONS := -dfreetype.dll -w + +include $(TOP_DIR)/builds/win32/win32-def.mk +include $(TOP_DIR)/builds/compiler/visualc.mk + +# include linking instructions +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/win32/w32-wat.mk b/builds/win32/w32-wat.mk new file mode 100644 index 0000000..820b817 --- /dev/null +++ b/builds/win32/w32-wat.mk @@ -0,0 +1,28 @@ +# +# FreeType 2 configuration rules for Watcom C/C++ +# + + +# Copyright 1996-2000, 2003, 2005 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +# redefine export symbol definitions +# +EXPORTS_LIST = $(OBJ_DIR)/watcom-ftexports.lbc +EXPORTS_OPTIONS = -\"export @$(EXPORTS_LIST)\"- +APINAMES_OPTIONS := -wW + +include $(TOP_DIR)/builds/win32/win32-def.mk +include $(TOP_DIR)/builds/compiler/watcom.mk + +# include linking instructions +include $(TOP_DIR)/builds/link_dos.mk + + +# EOF diff --git a/builds/win32/win32-def.mk b/builds/win32/win32-def.mk new file mode 100644 index 0000000..e6ae31c --- /dev/null +++ b/builds/win32/win32-def.mk @@ -0,0 +1,47 @@ +# +# FreeType 2 Win32 specific definitions +# + + +# Copyright 1996-2000, 2003, 2005, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +DELETE := del +CAT := type +SEP := $(strip \ ) +BUILD_DIR := $(TOP_DIR)/builds/win32 +PLATFORM := win32 + +# The executable file extension (for tools). NOTE: WE INCLUDE THE DOT HERE !! +# +E := .exe +E_BUILD := .exe + + +# The directory where all library files are placed. +# +# By default, this is the same as $(OBJ_DIR); however, this can be changed +# to suit particular needs. +# +LIB_DIR := $(OBJ_DIR) + + +# The name of the final library file. Note that the DOS-specific Makefile +# uses a shorter (8.3) name. +# +LIBRARY := $(PROJECT) + + +# The NO_OUTPUT macro is used to ignore the output of commands. +# +NO_OUTPUT = 2> nul + + +# EOF diff --git a/builds/wince/ftdebug.c b/builds/wince/ftdebug.c new file mode 100644 index 0000000..272415d --- /dev/null +++ b/builds/wince/ftdebug.c @@ -0,0 +1,236 @@ +/***************************************************************************/ +/* */ +/* ftdebug.c */ +/* */ +/* Debugging and logging component for WinCE (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This component contains various macros and functions used to ease the */ + /* debugging of the FreeType engine. Its main purpose is in assertion */ + /* checking, tracing, and error detection. */ + /* */ + /* There are now three debugging modes: */ + /* */ + /* - trace mode */ + /* */ + /* Error and trace messages are sent to the log file (which can be the */ + /* standard error output). */ + /* */ + /* - error mode */ + /* */ + /* Only error messages are generated. */ + /* */ + /* - release mode: */ + /* */ + /* No error message is sent or generated. The code is free from any */ + /* debugging parts. */ + /* */ + /*************************************************************************/ + + +#include +#include FT_INTERNAL_DEBUG_H + + +#ifdef FT_DEBUG_LEVEL_ERROR + + +#include +#include +#include + +#include + + + void + OutputDebugStringEx( const char* str ) + { + static WCHAR buf[8192]; + + + int sz = MultiByteToWideChar( CP_ACP, 0, str, -1, buf, + sizeof ( buf ) / sizeof ( *buf ) ); + if ( !sz ) + lstrcpyW( buf, L"OutputDebugStringEx: MultiByteToWideChar failed" ); + + OutputDebugStringW( buf ); + } + + + FT_BASE_DEF( void ) + FT_Message( const char* fmt, ... ) + { + static char buf[8192]; + va_list ap; + + + va_start( ap, fmt ); + vprintf( fmt, ap ); + /* send the string to the debugger as well */ + vsprintf( buf, fmt, ap ); + OutputDebugStringEx( buf ); + va_end( ap ); + } + + + FT_BASE_DEF( void ) + FT_Panic( const char* fmt, ... ) + { + static char buf[8192]; + va_list ap; + + + va_start( ap, fmt ); + vsprintf( buf, fmt, ap ); + OutputDebugStringEx( buf ); + va_end( ap ); + + exit( EXIT_FAILURE ); + } + + +#ifdef FT_DEBUG_LEVEL_TRACE + + + /* array of trace levels, initialized to 0 */ + int ft_trace_levels[trace_count]; + + /* define array of trace toggle names */ +#define FT_TRACE_DEF( x ) #x , + + static const char* ft_trace_toggles[trace_count + 1] = + { +#include FT_INTERNAL_TRACE_H + NULL + }; + +#undef FT_TRACE_DEF + + + /*************************************************************************/ + /* */ + /* Initialize the tracing sub-system. This is done by retrieving the */ + /* value of the "FT2_DEBUG" environment variable. It must be a list of */ + /* toggles, separated by spaces, `;' or `,'. Example: */ + /* */ + /* "any:3 memory:6 stream:5" */ + /* */ + /* This will request that all levels be set to 3, except the trace level */ + /* for the memory and stream components which are set to 6 and 5, */ + /* respectively. */ + /* */ + /* See the file for details of the */ + /* available toggle names. */ + /* */ + /* The level must be between 0 and 6; 0 means quiet (except for serious */ + /* runtime errors), and 6 means _very_ verbose. */ + /* */ + FT_BASE_DEF( void ) + ft_debug_init( void ) + { + /* Windows Mobile doesn't have environment API: */ + /* GetEnvironmentStrings, GetEnvironmentVariable, getenv. */ + /* */ + /* FIXME!!! How to set debug mode? */ + + /* const char* ft2_debug = getenv( "FT2_DEBUG" ); */ + + const char* ft2_debug = 0; + + + if ( ft2_debug ) + { + const char* p = ft2_debug; + const char* q; + + + for ( ; *p; p++ ) + { + /* skip leading whitespace and separators */ + if ( *p == ' ' || *p == '\t' || *p == ',' || *p == ';' || *p == '=' ) + continue; + + /* read toggle name, followed by ':' */ + q = p; + while ( *p && *p != ':' ) + p++; + + if ( *p == ':' && p > q ) + { + int n, i, len = p - q; + int level = -1, found = -1; + + + for ( n = 0; n < trace_count; n++ ) + { + const char* toggle = ft_trace_toggles[n]; + + + for ( i = 0; i < len; i++ ) + { + if ( toggle[i] != q[i] ) + break; + } + + if ( i == len && toggle[i] == 0 ) + { + found = n; + break; + } + } + + /* read level */ + p++; + if ( *p ) + { + level = *p++ - '0'; + if ( level < 0 || level > 7 ) + level = -1; + } + + if ( found >= 0 && level >= 0 ) + { + if ( found == trace_any ) + { + /* special case for "any" */ + for ( n = 0; n < trace_count; n++ ) + ft_trace_levels[n] = level; + } + else + ft_trace_levels[found] = level; + } + } + } + } + } + + +#else /* !FT_DEBUG_LEVEL_TRACE */ + + + FT_BASE_DEF( void ) + ft_debug_init( void ) + { + /* nothing */ + } + + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + +#endif /* FT_DEBUG_LEVEL_ERROR */ + + +/* END */ diff --git a/builds/wince/vc2005-ce/freetype.sln b/builds/wince/vc2005-ce/freetype.sln new file mode 100644 index 0000000..76e52d8 --- /dev/null +++ b/builds/wince/vc2005-ce/freetype.sln @@ -0,0 +1,158 @@ + +Microsoft Visual Studio Solution File, Format Version 9.00 +# Visual Studio 2005 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "freetype", "freetype.vcproj", "{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + LIB Debug Multithreaded|Pocket PC 2003 (ARMV4) = LIB Debug Multithreaded|Pocket PC 2003 (ARMV4) + LIB Debug Multithreaded|Smartphone 2003 (ARMV4) = LIB Debug Multithreaded|Smartphone 2003 (ARMV4) + LIB Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) = LIB Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + LIB Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) = LIB Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + LIB Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) = LIB Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + LIB Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) = LIB Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + LIB Debug Singlethreaded|Pocket PC 2003 (ARMV4) = LIB Debug Singlethreaded|Pocket PC 2003 (ARMV4) + LIB Debug Singlethreaded|Smartphone 2003 (ARMV4) = LIB Debug Singlethreaded|Smartphone 2003 (ARMV4) + LIB Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) = LIB Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + LIB Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) = LIB Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + LIB Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) = LIB Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + LIB Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) = LIB Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + LIB Debug|Pocket PC 2003 (ARMV4) = LIB Debug|Pocket PC 2003 (ARMV4) + LIB Debug|Smartphone 2003 (ARMV4) = LIB Debug|Smartphone 2003 (ARMV4) + LIB Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) = LIB Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + LIB Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I) = LIB Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + LIB Debug|Windows Mobile 6 Professional SDK (ARMV4I) = LIB Debug|Windows Mobile 6 Professional SDK (ARMV4I) + LIB Debug|Windows Mobile 6 Standard SDK (ARMV4I) = LIB Debug|Windows Mobile 6 Standard SDK (ARMV4I) + LIB Release Multithreaded|Pocket PC 2003 (ARMV4) = LIB Release Multithreaded|Pocket PC 2003 (ARMV4) + LIB Release Multithreaded|Smartphone 2003 (ARMV4) = LIB Release Multithreaded|Smartphone 2003 (ARMV4) + LIB Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) = LIB Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + LIB Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) = LIB Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + LIB Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) = LIB Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + LIB Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) = LIB Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + LIB Release Singlethreaded|Pocket PC 2003 (ARMV4) = LIB Release Singlethreaded|Pocket PC 2003 (ARMV4) + LIB Release Singlethreaded|Smartphone 2003 (ARMV4) = LIB Release Singlethreaded|Smartphone 2003 (ARMV4) + LIB Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) = LIB Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + LIB Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) = LIB Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + LIB Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) = LIB Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + LIB Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) = LIB Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + LIB Release|Pocket PC 2003 (ARMV4) = LIB Release|Pocket PC 2003 (ARMV4) + LIB Release|Smartphone 2003 (ARMV4) = LIB Release|Smartphone 2003 (ARMV4) + LIB Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) = LIB Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + LIB Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I) = LIB Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + LIB Release|Windows Mobile 6 Professional SDK (ARMV4I) = LIB Release|Windows Mobile 6 Professional SDK (ARMV4I) + LIB Release|Windows Mobile 6 Standard SDK (ARMV4I) = LIB Release|Windows Mobile 6 Standard SDK (ARMV4I) + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Pocket PC 2003 (ARMV4).ActiveCfg = Debug Multithreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Pocket PC 2003 (ARMV4).Build.0 = Debug Multithreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Pocket PC 2003 (ARMV4).Deploy.0 = Debug Multithreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Smartphone 2003 (ARMV4).ActiveCfg = Debug Multithreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Smartphone 2003 (ARMV4).Build.0 = Debug Multithreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Smartphone 2003 (ARMV4).Deploy.0 = Debug Multithreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).ActiveCfg = Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Build.0 = Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Deploy.0 = Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).ActiveCfg = Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Build.0 = Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Deploy.0 = Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I).ActiveCfg = Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I).Build.0 = Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I).Deploy.0 = Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I).ActiveCfg = Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I).Build.0 = Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I).Deploy.0 = Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Pocket PC 2003 (ARMV4).ActiveCfg = Debug Singlethreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Pocket PC 2003 (ARMV4).Build.0 = Debug Singlethreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Pocket PC 2003 (ARMV4).Deploy.0 = Debug Singlethreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Smartphone 2003 (ARMV4).ActiveCfg = Debug Singlethreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Smartphone 2003 (ARMV4).Build.0 = Debug Singlethreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Smartphone 2003 (ARMV4).Deploy.0 = Debug Singlethreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).ActiveCfg = Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Build.0 = Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Deploy.0 = Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).ActiveCfg = Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Build.0 = Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Deploy.0 = Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I).ActiveCfg = Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I).Build.0 = Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I).Deploy.0 = Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I).ActiveCfg = Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I).Build.0 = Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I).Deploy.0 = Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Pocket PC 2003 (ARMV4).ActiveCfg = Debug|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Pocket PC 2003 (ARMV4).Build.0 = Debug|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Pocket PC 2003 (ARMV4).Deploy.0 = Debug|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Smartphone 2003 (ARMV4).ActiveCfg = Debug|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Smartphone 2003 (ARMV4).Build.0 = Debug|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Smartphone 2003 (ARMV4).Deploy.0 = Debug|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).ActiveCfg = Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Build.0 = Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Deploy.0 = Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I).ActiveCfg = Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Build.0 = Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Deploy.0 = Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 6 Professional SDK (ARMV4I).ActiveCfg = Debug|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 6 Professional SDK (ARMV4I).Build.0 = Debug|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 6 Professional SDK (ARMV4I).Deploy.0 = Debug|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 6 Standard SDK (ARMV4I).ActiveCfg = Debug|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 6 Standard SDK (ARMV4I).Build.0 = Debug|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 6 Standard SDK (ARMV4I).Deploy.0 = Debug|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Pocket PC 2003 (ARMV4).ActiveCfg = Release Multithreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Pocket PC 2003 (ARMV4).Build.0 = Release Multithreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Pocket PC 2003 (ARMV4).Deploy.0 = Release Multithreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Smartphone 2003 (ARMV4).ActiveCfg = Release Multithreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Smartphone 2003 (ARMV4).Build.0 = Release Multithreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Smartphone 2003 (ARMV4).Deploy.0 = Release Multithreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).ActiveCfg = Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Build.0 = Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Deploy.0 = Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).ActiveCfg = Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Build.0 = Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Deploy.0 = Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I).ActiveCfg = Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I).Build.0 = Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I).Deploy.0 = Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I).ActiveCfg = Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I).Build.0 = Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I).Deploy.0 = Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Pocket PC 2003 (ARMV4).ActiveCfg = Release Singlethreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Pocket PC 2003 (ARMV4).Build.0 = Release Singlethreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Pocket PC 2003 (ARMV4).Deploy.0 = Release Singlethreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Smartphone 2003 (ARMV4).ActiveCfg = Release Singlethreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Smartphone 2003 (ARMV4).Build.0 = Release Singlethreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Smartphone 2003 (ARMV4).Deploy.0 = Release Singlethreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).ActiveCfg = Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Build.0 = Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Deploy.0 = Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).ActiveCfg = Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Build.0 = Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Deploy.0 = Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I).ActiveCfg = Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I).Build.0 = Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I).Deploy.0 = Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I).ActiveCfg = Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I).Build.0 = Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I).Deploy.0 = Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Pocket PC 2003 (ARMV4).ActiveCfg = Release|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Pocket PC 2003 (ARMV4).Build.0 = Release|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Pocket PC 2003 (ARMV4).Deploy.0 = Release|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Smartphone 2003 (ARMV4).ActiveCfg = Release|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Smartphone 2003 (ARMV4).Build.0 = Release|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Smartphone 2003 (ARMV4).Deploy.0 = Release|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).ActiveCfg = Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Build.0 = Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Deploy.0 = Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I).ActiveCfg = Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Build.0 = Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Deploy.0 = Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 6 Professional SDK (ARMV4I).ActiveCfg = Release|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 6 Professional SDK (ARMV4I).Build.0 = Release|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Releaase|Windows Mobile 6 Professional SDK (ARMV4I).Deploy.0 = Release|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 6 Standard SDK (ARMV4I).ActiveCfg = Release|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 6 Standard SDK (ARMV4I).Build.0 = Release|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 6 Standard SDK (ARMV4I).Deploy.0 = Release|Windows Mobile 6 Standard SDK (ARMV4I) + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection +EndGlobal diff --git a/builds/wince/vc2005-ce/freetype.vcproj b/builds/wince/vc2005-ce/freetype.vcproj new file mode 100644 index 0000000..fa0e986 --- /dev/null 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+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/builds/wince/vc2005-ce/index.html b/builds/wince/vc2005-ce/index.html new file mode 100644 index 0000000..cffa8cb --- /dev/null +++ b/builds/wince/vc2005-ce/index.html @@ -0,0 +1,47 @@ + +
      + + FreeType 2 Project Files for VS.NET 2005 + (Pocket PC) + + + +

      + FreeType 2 Project Files for VS.NET 2005 + (Pocket PC) +

      + +

      This directory contains project files for Visual C++, named +freetype.vcproj, and Visual Studio, called freetype.sln for +the following targets: + +

        +
      • PPC/SP 2003 (Pocket PC 2003)
      • +
      • PPC/SP WM5 (Windows Mobile 5)
      • +
      • PPC/SP WM6 (Windows Mobile 6)
      • +
      + +It compiles the following libraries from the FreeType 2.4.9 sources:

      + +
        +
        +    freetype249.lib     - release build; single threaded
        +    freetype249_D.lib   - debug build;   single threaded
        +    freetype249MT.lib   - release build; multi-threaded
        +    freetype249MT_D.lib - debug build;   multi-threaded
        +
      + +

      Be sure to extract the files with the Windows (CR+LF) line endings. ZIP +archives are already stored this way, so no further action is required. If +you use some .tar.*z archives, be sure to configure your extracting +tool to convert the line endings. For example, with WinZip, you should activate the TAR +file smart CR/LF Conversion option. Alternatively, you may consider +using the unix2dos or u2d utilities that are floating +around, which specifically deal with this particular problem. + +

      Build directories are placed in the top-level objs +directory.

      + + + diff --git a/builds/wince/vc2008-ce/freetype.sln b/builds/wince/vc2008-ce/freetype.sln new file mode 100644 index 0000000..d8efd96 --- /dev/null +++ b/builds/wince/vc2008-ce/freetype.sln @@ -0,0 +1,158 @@ + +Microsoft Visual Studio Solution File, Format Version 10.00 +# Visual Studio 2008 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "freetype", "freetype.vcproj", "{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + LIB Debug Multithreaded|Pocket PC 2003 (ARMV4) = LIB Debug Multithreaded|Pocket PC 2003 (ARMV4) + LIB Debug Multithreaded|Smartphone 2003 (ARMV4) = LIB Debug Multithreaded|Smartphone 2003 (ARMV4) + LIB Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) = LIB Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + LIB Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) = LIB Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + LIB Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) = LIB Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + LIB Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) = LIB Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + LIB Debug Singlethreaded|Pocket PC 2003 (ARMV4) = LIB Debug Singlethreaded|Pocket PC 2003 (ARMV4) + LIB Debug Singlethreaded|Smartphone 2003 (ARMV4) = LIB Debug Singlethreaded|Smartphone 2003 (ARMV4) + LIB Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) = LIB Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + LIB Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) = LIB Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + LIB Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) = LIB Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + LIB Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) = LIB Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + LIB Debug|Pocket PC 2003 (ARMV4) = LIB Debug|Pocket PC 2003 (ARMV4) + LIB Debug|Smartphone 2003 (ARMV4) = LIB Debug|Smartphone 2003 (ARMV4) + LIB Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) = LIB Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + LIB Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I) = LIB Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + LIB Debug|Windows Mobile 6 Professional SDK (ARMV4I) = LIB Debug|Windows Mobile 6 Professional SDK (ARMV4I) + LIB Debug|Windows Mobile 6 Standard SDK (ARMV4I) = LIB Debug|Windows Mobile 6 Standard SDK (ARMV4I) + LIB Release Multithreaded|Pocket PC 2003 (ARMV4) = LIB Release Multithreaded|Pocket PC 2003 (ARMV4) + LIB Release Multithreaded|Smartphone 2003 (ARMV4) = LIB Release Multithreaded|Smartphone 2003 (ARMV4) + LIB Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) = LIB Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + LIB Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) = LIB Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + LIB Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) = LIB Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + LIB Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) = LIB Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + LIB Release Singlethreaded|Pocket PC 2003 (ARMV4) = LIB Release Singlethreaded|Pocket PC 2003 (ARMV4) + LIB Release Singlethreaded|Smartphone 2003 (ARMV4) = LIB Release Singlethreaded|Smartphone 2003 (ARMV4) + LIB Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) = LIB Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + LIB Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) = LIB Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + LIB Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) = LIB Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + LIB Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) = LIB Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + LIB Release|Pocket PC 2003 (ARMV4) = LIB Release|Pocket PC 2003 (ARMV4) + LIB Release|Smartphone 2003 (ARMV4) = LIB Release|Smartphone 2003 (ARMV4) + LIB Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) = LIB Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + LIB Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I) = LIB Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + LIB Release|Windows Mobile 6 Professional SDK (ARMV4I) = LIB Release|Windows Mobile 6 Professional SDK (ARMV4I) + LIB Release|Windows Mobile 6 Standard SDK (ARMV4I) = LIB Release|Windows Mobile 6 Standard SDK (ARMV4I) + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Pocket PC 2003 (ARMV4).ActiveCfg = Debug Multithreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Pocket PC 2003 (ARMV4).Build.0 = Debug Multithreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Pocket PC 2003 (ARMV4).Deploy.0 = Debug Multithreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Smartphone 2003 (ARMV4).ActiveCfg = Debug Multithreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Smartphone 2003 (ARMV4).Build.0 = Debug Multithreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Smartphone 2003 (ARMV4).Deploy.0 = Debug Multithreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).ActiveCfg = Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Build.0 = Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Deploy.0 = Debug Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).ActiveCfg = Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Build.0 = Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Deploy.0 = Debug Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I).ActiveCfg = Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I).Build.0 = Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I).Deploy.0 = Debug Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I).ActiveCfg = Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I).Build.0 = Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I).Deploy.0 = Debug Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Pocket PC 2003 (ARMV4).ActiveCfg = Debug Singlethreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Pocket PC 2003 (ARMV4).Build.0 = Debug Singlethreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Pocket PC 2003 (ARMV4).Deploy.0 = Debug Singlethreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Smartphone 2003 (ARMV4).ActiveCfg = Debug Singlethreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Smartphone 2003 (ARMV4).Build.0 = Debug Singlethreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Smartphone 2003 (ARMV4).Deploy.0 = Debug Singlethreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).ActiveCfg = Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Build.0 = Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Deploy.0 = Debug Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).ActiveCfg = Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Build.0 = Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Deploy.0 = Debug Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I).ActiveCfg = Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I).Build.0 = Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I).Deploy.0 = Debug Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I).ActiveCfg = Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I).Build.0 = Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I).Deploy.0 = Debug Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Pocket PC 2003 (ARMV4).ActiveCfg = Debug|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Pocket PC 2003 (ARMV4).Build.0 = Debug|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Pocket PC 2003 (ARMV4).Deploy.0 = Debug|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Smartphone 2003 (ARMV4).ActiveCfg = Debug|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Smartphone 2003 (ARMV4).Build.0 = Debug|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Smartphone 2003 (ARMV4).Deploy.0 = Debug|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).ActiveCfg = Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Build.0 = Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Deploy.0 = Debug|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I).ActiveCfg = Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Build.0 = Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Deploy.0 = Debug|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 6 Professional SDK (ARMV4I).ActiveCfg = Debug|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 6 Professional SDK (ARMV4I).Build.0 = Debug|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 6 Professional SDK (ARMV4I).Deploy.0 = Debug|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 6 Standard SDK (ARMV4I).ActiveCfg = Debug|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 6 Standard SDK (ARMV4I).Build.0 = Debug|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Debug|Windows Mobile 6 Standard SDK (ARMV4I).Deploy.0 = Debug|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Pocket PC 2003 (ARMV4).ActiveCfg = Release Multithreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Pocket PC 2003 (ARMV4).Build.0 = Release Multithreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Pocket PC 2003 (ARMV4).Deploy.0 = Release Multithreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Smartphone 2003 (ARMV4).ActiveCfg = Release Multithreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Smartphone 2003 (ARMV4).Build.0 = Release Multithreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Smartphone 2003 (ARMV4).Deploy.0 = Release Multithreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).ActiveCfg = Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Build.0 = Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Deploy.0 = Release Multithreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).ActiveCfg = Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Build.0 = Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Deploy.0 = Release Multithreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I).ActiveCfg = Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I).Build.0 = Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I).Deploy.0 = Release Multithreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I).ActiveCfg = Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I).Build.0 = Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I).Deploy.0 = Release Multithreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Pocket PC 2003 (ARMV4).ActiveCfg = Release Singlethreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Pocket PC 2003 (ARMV4).Build.0 = Release Singlethreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Pocket PC 2003 (ARMV4).Deploy.0 = Release Singlethreaded|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Smartphone 2003 (ARMV4).ActiveCfg = Release Singlethreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Smartphone 2003 (ARMV4).Build.0 = Release Singlethreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Smartphone 2003 (ARMV4).Deploy.0 = Release Singlethreaded|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).ActiveCfg = Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Build.0 = Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Deploy.0 = Release Singlethreaded|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).ActiveCfg = Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Build.0 = Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Deploy.0 = Release Singlethreaded|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I).ActiveCfg = Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I).Build.0 = Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I).Deploy.0 = Release Singlethreaded|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I).ActiveCfg = Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I).Build.0 = Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I).Deploy.0 = Release Singlethreaded|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Pocket PC 2003 (ARMV4).ActiveCfg = Release|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Pocket PC 2003 (ARMV4).Build.0 = Release|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Pocket PC 2003 (ARMV4).Deploy.0 = Release|Pocket PC 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Smartphone 2003 (ARMV4).ActiveCfg = Release|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Smartphone 2003 (ARMV4).Build.0 = Release|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Smartphone 2003 (ARMV4).Deploy.0 = Release|Smartphone 2003 (ARMV4) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).ActiveCfg = Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Build.0 = Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I).Deploy.0 = Release|Windows Mobile 5.0 Pocket PC SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I).ActiveCfg = Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Build.0 = Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I).Deploy.0 = Release|Windows Mobile 5.0 Smartphone SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 6 Professional SDK (ARMV4I).ActiveCfg = Release|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 6 Professional SDK (ARMV4I).Build.0 = Release|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 6 Professional SDK (ARMV4I).Deploy.0 = Release|Windows Mobile 6 Professional SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 6 Standard SDK (ARMV4I).ActiveCfg = Release|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 6 Standard SDK (ARMV4I).Build.0 = Release|Windows Mobile 6 Standard SDK (ARMV4I) + {78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.LIB Release|Windows Mobile 6 Standard SDK (ARMV4I).Deploy.0 = Release|Windows Mobile 6 Standard SDK (ARMV4I) + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection +EndGlobal diff --git a/builds/wince/vc2008-ce/freetype.vcproj b/builds/wince/vc2008-ce/freetype.vcproj new file mode 100644 index 0000000..1f052c1 --- /dev/null +++ b/builds/wince/vc2008-ce/freetype.vcproj @@ -0,0 +1,13495 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 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+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/builds/wince/vc2008-ce/index.html b/builds/wince/vc2008-ce/index.html new file mode 100644 index 0000000..0c636b6 --- /dev/null +++ b/builds/wince/vc2008-ce/index.html @@ -0,0 +1,47 @@ + +
      + + FreeType 2 Project Files for VS.NET 2008 + (Pocket PC) + + + +

      + FreeType 2 Project Files for VS.NET 2008 + (Pocket PC) +

      + +

      This directory contains project files for Visual C++, named +freetype.dsp, and Visual Studio, called freetype.sln for +the following targets: + +

        +
      • PPC/SP 2003 (Pocket PC 2003)
      • +
      • PPC/SP WM5 (Windows Mobile 5)
      • +
      • PPC/SP WM6 (Windows Mobile 6)
      • +
      + +It compiles the following libraries from the FreeType 2.4.9 sources:

      + +
        +
        +    freetype249.lib     - release build; single threaded
        +    freetype249_D.lib   - debug build;   single threaded
        +    freetype249MT.lib   - release build; multi-threaded
        +    freetype249MT_D.lib - debug build;   multi-threaded
        +
      + +

      Be sure to extract the files with the Windows (CR+LF) line endings. ZIP +archives are already stored this way, so no further action is required. If +you use some .tar.*z archives, be sure to configure your extracting +tool to convert the line endings. For example, with WinZip, you should activate the TAR +file smart CR/LF Conversion option. Alternatively, you may consider +using the unix2dos or u2d utilities that are floating +around, which specifically deal with this particular problem. + +

      Build directories are placed in the top-level objs +directory.

      + + + diff --git a/configure b/configure new file mode 100755 index 0000000..55a24fd --- /dev/null +++ b/configure @@ -0,0 +1,125 @@ +#!/bin/sh +# +# Copyright 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2010 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. +# +# +# Call the `configure' script located in `builds/unix'. +# + +rm -f config.mk builds/unix/unix-def.mk builds/unix/unix-cc.mk + +if test "x$GNUMAKE" = x; then + GNUMAKE=make +fi + +if test -z "`$GNUMAKE -v 2>/dev/null | grep GNU`"; then + if test -z "`$GNUMAKE -v 2>/dev/null | grep makepp`"; then + echo "GNU make (>= 3.80) or makepp (>= 1.19) is required to build FreeType2." >&2 + echo "Please try" >&2 + echo " \`GNUMAKE= $0'." >&2 + echo "or >&2" + echo " \`GNUMAKE=\"makepp --norc-substitution\" $0'." >&2 + exit 1 + fi +fi + +# Get `dirname' functionality. This is taken and adapted from autoconf's +# m4sh.m4 (_AS_EXPR_PREPARE, AS_DIRNAME_EXPR, and AS_DIRNAME_SED). + +if expr a : '\(a\)' >/dev/null 2>&1; then + ft_expr=expr +else + ft_expr=false +fi + +ft2_dir=`(dirname "$0") 2>/dev/null || + $ft_expr X"$0" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$0" : 'X\(//\)[^/]' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| \ + . : '\(.\)' 2>/dev/null || + echo X"$0" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +abs_curr_dir=`pwd` +abs_ft2_dir=`cd "$ft2_dir" && pwd` + +# `--srcdir=' option can override abs_ft2_dir + +if test $# -gt 0; then + for x in "$@"; do + case x"$x" in + x--srcdir=*) + abs_ft2_dir=`echo $x | sed 's/^--srcdir=//'` ;; + esac + done +fi + +# build a dummy Makefile if we are not building in the source tree; +# we use inodes to avoid issues with symbolic links +inode_src=`ls -id $abs_ft2_dir | awk '{print $1}'` +inode_dst=`ls -id $abs_curr_dir | awk '{print $1}'` + +if test $inode_src -ne $inode_dst; then + if test ! -d reference; then + mkdir reference + fi + if test ! -r $abs_curr_dir/modules.cfg; then + echo "Copying \`modules.cfg'" + cp $abs_ft2_dir/modules.cfg $abs_curr_dir + fi + echo "Generating \`Makefile'" + echo "TOP_DIR := $abs_ft2_dir" > Makefile + echo "OBJ_DIR := $abs_curr_dir" >> Makefile + echo "OBJ_BUILD := \$(OBJ_DIR)" >> Makefile + echo "DOC_DIR := \$(OBJ_DIR)/reference" >> Makefile + echo "FT_LIBTOOL_DIR := \$(OBJ_DIR)" >> Makefile + echo "ifndef FT2DEMOS" >> Makefile + echo " include \$(TOP_DIR)/Makefile" >> Makefile + echo "else" >> Makefile + echo " TOP_DIR_2 := \$(TOP_DIR)/../ft2demos" >> Makefile + echo " PROJECT := freetype" >> Makefile + echo " CONFIG_MK := \$(OBJ_DIR)/config.mk" >> Makefile + echo " include \$(TOP_DIR_2)/Makefile" >> Makefile + echo "endif" >> Makefile +fi + +# call make + +CFG= +# work around zsh bug which doesn't like `${1+"$@"}' +case $# in +0) ;; +*) for x in "$@"; do + case x"$x" in + x--srcdir=* ) CFG="$CFG '$x'/builds/unix" ;; + *) CFG="$CFG '$x'" ;; + esac + done ;; +esac +CFG=$CFG $GNUMAKE setup unix + +# eof diff --git a/debian/changelog b/debian/changelog new file mode 100644 index 0000000..13476fd --- /dev/null +++ b/debian/changelog @@ -0,0 +1,104 @@ +freetype (2.4.9-slp2+1) unstable; urgency=low + + * FT2 version upgrade from 2.4.3 to 2.4.9 + * Git: 165.213.180.234:/slp/unmodified/freetype + * Tag: freetype_2.4.9-slp2+1 + -- Deokjin Kim Wed, 30 May 2012 15:18:41 +0900 + +freetype (2.4.3-6slp2+1) unstable; urgency=low + + * Fix text display bug in m.etnews.com + * Git: 165.213.180.234:/slp/unmodified/freetype + * Tag: freetype_2.4.3-6slp2+1 + + -- Deokjin Kim Thu, 20 Oct 2011 16:17:50 +0900 + +freetype (2.4.3-5slp4) unstable; urgency=low + + * Packag Rollback + * Git: 165.213.180.234:/slp/unmodified/freetype + * Tag: freetype_2.4.3-5slp4 + + -- WooHyun Jung Mon, 11 Apr 2011 12:16:22 +0900 + +freetype (2.4.3-5slp3) unstable; urgency=low + + * Rollback pkgs + * Git: 165.213.180.234:/slp/unmodified/freetype + * Tag: freetype_2.4.3-5slp3 + + -- WooHyun Jung Mon, 11 Apr 2011 11:56:46 +0900 + +freetype (2.4.3-5slp2) unstable; urgency=low + + * Removed unused modules + * Git: 165.213.180.234:slp/unmodified/freetype + * Tag: freetype_2.4.3-5slp2 + + -- Deokjin Kim Tue, 05 Apr 2011 10:51:07 +0900 + +freetype (2.4.3-4slp2) unstable; urgency=low + + * Rollback removing API + * Git: 165.213.180.234:slp/unmodified/freetype + * Tag: freetype_2.4.3-4slp2 + + -- Deokjin Kim Wed, 02 Mar 2011 14:11:53 +0900 + +freetype (2.4.3-3slp2) unstable; urgency=low + + * Reduce amount of memory usage + * Git: 165.213.180.234:slp/unmodified/freetype + * Tag: freetype_2.4.3-3slp2 + + -- Deokjin Kim Fri, 18 Feb 2011 11:14:20 +0900 + +freetype (2.4.3-2slp2) unstable; urgency=low + + * Add debug package + * Git: 165.213.180.234:/git/slp/unmodified/freetype + * Tag: freetype_2.4.3-2slp2 + + -- Deokjin Kim Thu, 18 Nov 2010 14:58:43 +0900 + +freetype (2.4.3-1slp2) unstable; urgency=low + + * Freetype version upgrade (from 2.3.5 to 2.4.3) + * Git: 165.213.180.234:/git/slp/unmodified/freetype + * Tag: freetype_2.4.3-1slp2 + + -- Deokjin Kim Tue, 09 Nov 2010 16:54:10 +0900 + +freetype (2.3.5-5slp2) unstable; urgency=low + + * Change maintainer + + -- Jihoon Kim Tue, 20 Apr 2010 11:06:10 +0900 + +freetype (2.3.5-4slp2) unstable; urgency=low + + * Change revision + + -- Sung-Jin Park Thu, 25 Mar 2010 19:34:16 +0900 + +freetype (2.3.5-3) unstable; urgency=low + + [ Kyu Young Kim ] + * modify debian files + + [ root ] + * - + + -- root Thu, 25 Mar 2010 19:34:13 +0900 + +freetype (2.3.5-2) unstable; urgency=low + + * install modify + + -- Kyu Young Kim Thu, 12 Nov 2009 15:45:39 +0900 + +freetype (2.3.5) unstable; urgency=low + + * Initial Release. + + -- Kyu Young Kim Thu, 12 Nov 2009 13:27:46 +0900 diff --git a/debian/compat b/debian/compat new file mode 100644 index 0000000..7ed6ff8 --- /dev/null +++ b/debian/compat @@ -0,0 +1 @@ +5 diff --git a/debian/control b/debian/control new file mode 100644 index 0000000..f14499e --- /dev/null +++ b/debian/control @@ -0,0 +1,68 @@ +Source: freetype +Section: libs +Priority: optional +Uploaders: Deokjin Kim +Maintainer: Deokjin Kim , Inpyo Kang +Build-Depends: debhelper (>= 5), autotools-dev +Standards-Version: 3.7.2 + +Package: libfreetype6 +Architecture: any +Section: libs +Depends: ${shlibs:Depends}, ${misc:Depends} +Conflicts: freetype, xpdf-reader (<< 1.00-4) +Description: FreeType 2 font engine, shared library files + The FreeType project is a team of volunteers who develop free, + portable and high-quality software solutions for digital typography. + They specifically target embedded systems and focus on bringing small, + efficient and ubiquitous products. + . + The FreeType 2 library is their new software font engine. It has been + designed to provide the following important features: + * A universal and simple API to manage font files + * Support for several font formats through loadable modules + * High-quality anti-aliasing + * High portability & performance + . + Supported font formats include: + * TrueType files (.ttf) and collections (.ttc) + * Type 1 font files both in ASCII (.pfa) or binary (.pfb) format + * Type 1 Multiple Master fonts. The FreeType 2 API also provides + routines to manage design instances easily + * Type 1 CID-keyed fonts + * OpenType/CFF (.otf) fonts + * CFF/Type 2 fonts + * Adobe CEF fonts (.cef), used to embed fonts in SVG documents with + the Adobe SVG viewer plugin. + * Windows FNT/FON bitmap fonts + +Package: libfreetype6-dev +Architecture: any +Section: libdevel +Depends: libfreetype6 (= ${binary:Version}), libc6-dev | libc-dev, zlib1g-dev | libz-dev +Conflicts: freetype0-dev, freetype1 (<= 1.0.0.1998-03-22-1), freetype1-dev +Replaces: freetype0-dev, freetype1-dev +Description: FreeType 2 font engine, development files + The FreeType project is a team of volunteers who develop free, + portable and high-quality software solutions for digital typography. + They specifically target embedded systems and focus on bringing small, + efficient and ubiquitous products. + . + This package contains all supplementary files (static library, headers + and documentation) you need to develop your own programs using the + FreeType 2 library. + +Package: libfreetype6-dbg +Section: debug +Priority: extra +Architecture: any +Depends: ${misc:Depends}, + libfreetype6 (= ${binary:Version}) +Conflicts: libfreetype6-dbg +Replaces: libfreetype6-dbg +Description: FreeType 2 font engine, debugging symbols + The FreeType project is a team of volunteers who develop free, + portable and high-quality software solutions for digital typography. + They specifically target embedded systems and focus on bringing small, + efficient and ubiquitous products. + . diff --git a/debian/copyright b/debian/copyright new file mode 100644 index 0000000..761470d --- /dev/null +++ b/debian/copyright @@ -0,0 +1,22 @@ +This is libfreetype6, written and maintained by Se Mun Lee +on Fri, 13 Nov 2009 14:08:22 +0900. + +The original source can always be found at: + ftp://slp.samsung.net/dists/unstable/main/source/ + +Copyright Holder: Se Mun Lee + +License: + samsung + +/* + * SLP2.0 + * Copyright (c) 2008 Samsung Electronics, Inc. + * All rights reserved. + * + * This software is a confidential and proprietary information + * of Samsung Electronics, Inc. ("Confidential Information"). You + * shall not disclose such Confidential Information and shall use + * it only in accordance with the terms of the license agreement + * you entered into with Samsung Electronics. + */ diff --git a/debian/dirs b/debian/dirs new file mode 100644 index 0000000..ca882bb --- /dev/null +++ b/debian/dirs @@ -0,0 +1,2 @@ +usr/bin +usr/sbin diff --git a/debian/docs b/debian/docs new file mode 100644 index 0000000..cb7384d --- /dev/null +++ b/debian/docs @@ -0,0 +1,6 @@ +README +README.git +ChangeLog.20 +ChangeLog.21 +ChangeLog.22 +ChangeLog.23 diff --git a/debian/libfreetype6-dev.install.in b/debian/libfreetype6-dev.install.in new file mode 100644 index 0000000..fa49e27 --- /dev/null +++ b/debian/libfreetype6-dev.install.in @@ -0,0 +1,7 @@ +@PREFIX@/bin/freetype-config +@PREFIX@/include/ +@PREFIX@/lib/*.so +@PREFIX@/lib/*.la +@PREFIX@/lib/*.a +@PREFIX@/lib/pkgconfig/ +@PREFIX@/share/aclocal/ diff --git a/debian/libfreetype6.install.in b/debian/libfreetype6.install.in new file mode 100644 index 0000000..a7c24c5 --- /dev/null +++ b/debian/libfreetype6.install.in @@ -0,0 +1 @@ +@PREFIX@/lib/*.so.* diff --git a/debian/rules b/debian/rules new file mode 100755 index 0000000..c88e6cc --- /dev/null +++ b/debian/rules @@ -0,0 +1,119 @@ +#!/usr/bin/make -f +# -*- makefile -*- +# Sample debian/rules that uses debhelper. +# This file was originally written by Joey Hess and Craig Small. +# As a special exception, when this file is copied by dh-make into a +# dh-make output file, you may use that output file without restriction. +# This special exception was added by Craig Small in version 0.37 of dh-make. + +# Uncomment this to turn on verbose mode. +#export DH_VERBOSE=1 + + +# These are used for cross-compiling and for saving the configure script +# from having to guess our platform (since we know it already) +DEB_HOST_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE) +DEB_BUILD_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE) + +CFLAGS ?= -Wall -g +LDFLAGS ?= +PREFIX ?= /usr +DATADIR ?= /opt + +ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS))) + CFLAGS += -O0 +else + CFLAGS += -O2 +endif + +LDFLAGS += -Wl,--rpath=$(PREFIX)/lib -Wl,--as-needed + +config.status: configure + dh_testdir + # Add here commands to configure the package. + CFLAGS="$(CFLAGS)" LDFLAGS="$(LDFLAGS)" ./configure --prefix=$(PREFIX) + +build: build-stamp + +build-stamp: config.status + dh_testdir + + # Add here commands to compile the package. + $(MAKE) + #docbook-to-man debian/ncurses.sgml > ncurses.1 + + for f in `find $(CURDIR)/debian/ -name "*.in"`; do \ + cat $$f > $${f%.in}; \ + sed -i -e "s#@PREFIX@#$(PREFIX)#g" $${f%.in}; \ + sed -i -e "s#@DATADIR@#$(DATADIR)#g" $${f%.in}; \ + done + + touch $@ + +clean: + dh_testdir + dh_testroot + rm -f build-stamp + + # Add here commands to clean up after the build process. + -$(MAKE) distclean +ifneq "$(wildcard /usr/share/misc/config.sub)" "" + cp -f /usr/share/misc/config.sub config.sub +endif +ifneq "$(wildcard /usr/share/misc/config.guess)" "" + cp -f /usr/share/misc/config.guess config.guess +endif + + for f in `find $(CURDIR)/debian/ -name "*.in"`; do \ + rm -f $${f%.in}; \ + done + + dh_clean + +install: build + dh_testdir + dh_testroot + dh_clean -k + dh_installdirs + + # Add here commands to install the package into debian/ncurses. + $(MAKE) DESTDIR=$(CURDIR)/debian/tmp install + + +# Build architecture-independent files here. +binary-indep: build install +# We have nothing to do by default. + +# Build architecture-dependent files here. +binary-arch: build install + dh_testdir + dh_testroot + dh_installchangelogs + dh_installdocs + dh_installexamples + dh_install --sourcedir=debian/tmp +# dh_installmenu +# dh_installdebconf +# dh_installlogrotate +# dh_installemacsen +# dh_installpam +# dh_installmime +# dh_python +# dh_installinit +# dh_installcron +# dh_installinfo + dh_installman + dh_link + dh_strip --dbg-package=libfreetype6-dbg + dh_compress + dh_fixperms +# dh_perl + dh_makeshlibs + dh_installdeb + dh_shlibdeps + dh_gencontrol + dh_md5sums + dh_builddeb + +binary: binary-indep binary-arch +.PHONY: build clean binary-indep binary-arch binary install diff --git a/devel/ft2build.h b/devel/ft2build.h new file mode 100644 index 0000000..c1d38c3 --- /dev/null +++ b/devel/ft2build.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* ft2build.h */ +/* */ +/* FreeType 2 build and setup macros. */ +/* (Generic version) */ +/* */ +/* Copyright 1996-2001, 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* + * This is a development version of that is used + * to build the library in debug mode. Its only difference with + * the reference is that it forces the use of the local `ftoption.h' + * which contains different settings for all configuration macros. + * + * To use it, you must define the environment variable FT2_BUILD_INCLUDE + * to point to the directory containing these two files (`ft2build.h' and + * `ftoption.h'), then invoke Jam as usual. + */ + +#ifndef __FT2_BUILD_DEVEL_H__ +#define __FT2_BUILD_DEVEL_H__ + +#define FT_CONFIG_OPTIONS_H + +#include + +#endif /* __FT2_BUILD_DEVEL_H__ */ + + +/* END */ diff --git a/devel/ftoption.h b/devel/ftoption.h new file mode 100644 index 0000000..4da0221 --- /dev/null +++ b/devel/ftoption.h @@ -0,0 +1,805 @@ +/***************************************************************************/ +/* */ +/* ftoption.h (for development) */ +/* */ +/* User-selectable configuration macros (specification only). */ +/* */ +/* Copyright 1996-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTOPTION_H__ +#define __FTOPTION_H__ + + +#include + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /* */ + /* USER-SELECTABLE CONFIGURATION MACROS */ + /* */ + /* This file contains the default configuration macro definitions for */ + /* a standard build of the FreeType library. There are three ways to */ + /* use this file to build project-specific versions of the library: */ + /* */ + /* - You can modify this file by hand, but this is not recommended in */ + /* cases where you would like to build several versions of the */ + /* library from a single source directory. */ + /* */ + /* - You can put a copy of this file in your build directory, more */ + /* precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD' */ + /* is the name of a directory that is included _before_ the FreeType */ + /* include path during compilation. */ + /* */ + /* The default FreeType Makefiles and Jamfiles use the build */ + /* directory `builds/' by default, but you can easily change */ + /* that for your own projects. */ + /* */ + /* - Copy the file to `$BUILD/ft2build.h' and modify it */ + /* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to */ + /* locate this file during the build. For example, */ + /* */ + /* #define FT_CONFIG_OPTIONS_H */ + /* #include */ + /* */ + /* will use `$BUILD/myftoptions.h' instead of this file for macro */ + /* definitions. */ + /* */ + /* Note also that you can similarly pre-define the macro */ + /* FT_CONFIG_MODULES_H used to locate the file listing of the modules */ + /* that are statically linked to the library at compile time. By */ + /* default, this file is . */ + /* */ + /* We highly recommend using the third method whenever possible. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** G E N E R A L F R E E T Y P E 2 C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Uncomment the line below if you want to activate sub-pixel rendering */ + /* (a.k.a. LCD rendering, or ClearType) in this build of the library. */ + /* */ + /* Note that this feature is covered by several Microsoft patents */ + /* and should not be activated in any default build of the library. */ + /* */ + /* This macro has no impact on the FreeType API, only on its */ + /* _implementation_. For example, using FT_RENDER_MODE_LCD when calling */ + /* FT_Render_Glyph still generates a bitmap that is 3 times wider than */ + /* the original size in case this macro isn't defined; however, each */ + /* triplet of subpixels has R=G=B. */ + /* */ + /* This is done to allow FreeType clients to run unmodified, forcing */ + /* them to display normal gray-level anti-aliased glyphs. */ + /* */ +#define FT_CONFIG_OPTION_SUBPIXEL_RENDERING + + + /*************************************************************************/ + /* */ + /* Many compilers provide a non-ANSI 64-bit data type that can be used */ + /* by FreeType to speed up some computations. However, this will create */ + /* some problems when compiling the library in strict ANSI mode. */ + /* */ + /* For this reason, the use of 64-bit integers is normally disabled when */ + /* the __STDC__ macro is defined. You can however disable this by */ + /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */ + /* */ + /* For most compilers, this will only create compilation warnings when */ + /* building the library. */ + /* */ + /* ObNote: The compiler-specific 64-bit integers are detected in the */ + /* file `ftconfig.h' either statically or through the */ + /* `configure' script on supported platforms. */ + /* */ +#undef FT_CONFIG_OPTION_FORCE_INT64 + + + /*************************************************************************/ + /* */ + /* If this macro is defined, do not try to use an assembler version of */ + /* performance-critical functions (e.g. FT_MulFix). You should only do */ + /* that to verify that the assembler function works properly, or to */ + /* execute benchmark tests of the various implementations. */ +/* #define FT_CONFIG_OPTION_NO_ASSEMBLER */ + + + /*************************************************************************/ + /* */ + /* If this macro is defined, try to use an inlined assembler version of */ + /* the `FT_MulFix' function, which is a `hotspot' when loading and */ + /* hinting glyphs, and which should be executed as fast as possible. */ + /* */ + /* Note that if your compiler or CPU is not supported, this will default */ + /* to the standard and portable implementation found in `ftcalc.c'. */ + /* */ +#define FT_CONFIG_OPTION_INLINE_MULFIX + + + /*************************************************************************/ + /* */ + /* LZW-compressed file support. */ + /* */ + /* FreeType now handles font files that have been compressed with the */ + /* `compress' program. This is mostly used to parse many of the PCF */ + /* files that come with various X11 distributions. The implementation */ + /* uses NetBSD's `zopen' to partially uncompress the file on the fly */ + /* (see src/lzw/ftgzip.c). */ + /* */ + /* Define this macro if you want to enable this `feature'. */ + /* */ +#define FT_CONFIG_OPTION_USE_LZW + + + /*************************************************************************/ + /* */ + /* Gzip-compressed file support. */ + /* */ + /* FreeType now handles font files that have been compressed with the */ + /* `gzip' program. This is mostly used to parse many of the PCF files */ + /* that come with XFree86. The implementation uses `zlib' to */ + /* partially uncompress the file on the fly (see src/gzip/ftgzip.c). */ + /* */ + /* Define this macro if you want to enable this `feature'. See also */ + /* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */ + /* */ +#define FT_CONFIG_OPTION_USE_ZLIB + + + /*************************************************************************/ + /* */ + /* ZLib library selection */ + /* */ + /* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined. */ + /* It allows FreeType's `ftgzip' component to link to the system's */ + /* installation of the ZLib library. This is useful on systems like */ + /* Unix or VMS where it generally is already available. */ + /* */ + /* If you let it undefined, the component will use its own copy */ + /* of the zlib sources instead. These have been modified to be */ + /* included directly within the component and *not* export external */ + /* function names. This allows you to link any program with FreeType */ + /* _and_ ZLib without linking conflicts. */ + /* */ + /* Do not #undef this macro here since the build system might define */ + /* it for certain configurations only. */ + /* */ +/* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */ + + + /*************************************************************************/ + /* */ + /* Bzip2-compressed file support. */ + /* */ + /* FreeType now handles font files that have been compressed with the */ + /* `bzip2' program. This is mostly used to parse many of the PCF */ + /* files that come with XFree86. The implementation uses `libbz2' to */ + /* partially uncompress the file on the fly (see src/bzip2/ftbzip2.c). */ + /* Contrary to gzip, bzip2 currently is not included and need to use */ + /* the system available bzip2 implementation. */ + /* */ + /* Define this macro if you want to enable this `feature'. */ + /* */ +#define FT_CONFIG_OPTION_USE_BZIP2 + + + /*************************************************************************/ + /* */ + /* Define to disable the use of file stream functions and types, FILE, */ + /* fopen() etc. Enables the use of smaller system libraries on embedded */ + /* systems that have multiple system libraries, some with or without */ + /* file stream support, in the cases where file stream support is not */ + /* necessary such as memory loading of font files. */ + /* */ +/* #define FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */ + + + /*************************************************************************/ + /* */ + /* DLL export compilation */ + /* */ + /* When compiling FreeType as a DLL, some systems/compilers need a */ + /* special keyword in front OR after the return type of function */ + /* declarations. */ + /* */ + /* Two macros are used within the FreeType source code to define */ + /* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */ + /* */ + /* FT_EXPORT( return_type ) */ + /* */ + /* is used in a function declaration, as in */ + /* */ + /* FT_EXPORT( FT_Error ) */ + /* FT_Init_FreeType( FT_Library* alibrary ); */ + /* */ + /* */ + /* FT_EXPORT_DEF( return_type ) */ + /* */ + /* is used in a function definition, as in */ + /* */ + /* FT_EXPORT_DEF( FT_Error ) */ + /* FT_Init_FreeType( FT_Library* alibrary ) */ + /* { */ + /* ... some code ... */ + /* return FT_Err_Ok; */ + /* } */ + /* */ + /* You can provide your own implementation of FT_EXPORT and */ + /* FT_EXPORT_DEF here if you want. If you leave them undefined, they */ + /* will be later automatically defined as `extern return_type' to */ + /* allow normal compilation. */ + /* */ + /* Do not #undef these macros here since the build system might define */ + /* them for certain configurations only. */ + /* */ +/* #define FT_EXPORT(x) extern x */ +/* #define FT_EXPORT_DEF(x) x */ + + + /*************************************************************************/ + /* */ + /* Glyph Postscript Names handling */ + /* */ + /* By default, FreeType 2 is compiled with the `psnames' module. This */ + /* module is in charge of converting a glyph name string into a */ + /* Unicode value, or return a Macintosh standard glyph name for the */ + /* use with the TrueType `post' table. */ + /* */ + /* Undefine this macro if you do not want `psnames' compiled in your */ + /* build of FreeType. This has the following effects: */ + /* */ + /* - The TrueType driver will provide its own set of glyph names, */ + /* if you build it to support postscript names in the TrueType */ + /* `post' table. */ + /* */ + /* - The Type 1 driver will not be able to synthesize a Unicode */ + /* charmap out of the glyphs found in the fonts. */ + /* */ + /* You would normally undefine this configuration macro when building */ + /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */ + /* */ +#define FT_CONFIG_OPTION_POSTSCRIPT_NAMES + + + /*************************************************************************/ + /* */ + /* Postscript Names to Unicode Values support */ + /* */ + /* By default, FreeType 2 is built with the `PSNames' module compiled */ + /* in. Among other things, the module is used to convert a glyph name */ + /* into a Unicode value. This is especially useful in order to */ + /* synthesize on the fly a Unicode charmap from the CFF/Type 1 driver */ + /* through a big table named the `Adobe Glyph List' (AGL). */ + /* */ + /* Undefine this macro if you do not want the Adobe Glyph List */ + /* compiled in your `PSNames' module. The Type 1 driver will not be */ + /* able to synthesize a Unicode charmap out of the glyphs found in the */ + /* fonts. */ + /* */ +#define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST + + + /*************************************************************************/ + /* */ + /* Support for Mac fonts */ + /* */ + /* Define this macro if you want support for outline fonts in Mac */ + /* format (mac dfont, mac resource, macbinary containing a mac */ + /* resource) on non-Mac platforms. */ + /* */ + /* Note that the `FOND' resource isn't checked. */ + /* */ +#define FT_CONFIG_OPTION_MAC_FONTS + + + /*************************************************************************/ + /* */ + /* Guessing methods to access embedded resource forks */ + /* */ + /* Enable extra Mac fonts support on non-Mac platforms (e.g. */ + /* GNU/Linux). */ + /* */ + /* Resource forks which include fonts data are stored sometimes in */ + /* locations which users or developers don't expected. In some cases, */ + /* resource forks start with some offset from the head of a file. In */ + /* other cases, the actual resource fork is stored in file different */ + /* from what the user specifies. If this option is activated, */ + /* FreeType tries to guess whether such offsets or different file */ + /* names must be used. */ + /* */ + /* Note that normal, direct access of resource forks is controlled via */ + /* the FT_CONFIG_OPTION_MAC_FONTS option. */ + /* */ +#ifdef FT_CONFIG_OPTION_MAC_FONTS +#define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK +#endif + + + /*************************************************************************/ + /* */ + /* Allow the use of FT_Incremental_Interface to load typefaces that */ + /* contain no glyph data, but supply it via a callback function. */ + /* This is required by clients supporting document formats which */ + /* supply font data incrementally as the document is parsed, such */ + /* as the Ghostscript interpreter for the PostScript language. */ + /* */ +#define FT_CONFIG_OPTION_INCREMENTAL + + + /*************************************************************************/ + /* */ + /* The size in bytes of the render pool used by the scan-line converter */ + /* to do all of its work. */ + /* */ + /* This must be greater than 4KByte if you use FreeType to rasterize */ + /* glyphs; otherwise, you may set it to zero to avoid unnecessary */ + /* allocation of the render pool. */ + /* */ +#define FT_RENDER_POOL_SIZE 16384L + + + /*************************************************************************/ + /* */ + /* FT_MAX_MODULES */ + /* */ + /* The maximum number of modules that can be registered in a single */ + /* FreeType library object. 32 is the default. */ + /* */ +#define FT_MAX_MODULES 32 + + + /*************************************************************************/ + /* */ + /* Debug level */ + /* */ + /* FreeType can be compiled in debug or trace mode. In debug mode, */ + /* errors are reported through the `ftdebug' component. In trace */ + /* mode, additional messages are sent to the standard output during */ + /* execution. */ + /* */ + /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */ + /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */ + /* */ + /* Don't define any of these macros to compile in `release' mode! */ + /* */ + /* Do not #undef these macros here since the build system might define */ + /* them for certain configurations only. */ + /* */ +#define FT_DEBUG_LEVEL_ERROR +#define FT_DEBUG_LEVEL_TRACE + + + /*************************************************************************/ + /* */ + /* Autofitter debugging */ + /* */ + /* If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to */ + /* control the autofitter behaviour for debugging purposes with global */ + /* boolean variables (consequently, you should *never* enable this */ + /* while compiling in `release' mode): */ + /* */ + /* _af_debug_disable_horz_hints */ + /* _af_debug_disable_vert_hints */ + /* _af_debug_disable_blue_hints */ + /* */ + /* Additionally, the following functions provide dumps of various */ + /* internal autofit structures to stdout (using `printf'): */ + /* */ + /* af_glyph_hints_dump_points */ + /* af_glyph_hints_dump_segments */ + /* af_glyph_hints_dump_edges */ + /* */ + /* As an argument, they use another global variable: */ + /* */ + /* _af_debug_hints */ + /* */ + /* Please have a look at the `ftgrid' demo program to see how those */ + /* variables and macros should be used. */ + /* */ + /* Do not #undef these macros here since the build system might define */ + /* them for certain configurations only. */ + /* */ +#define FT_DEBUG_AUTOFIT + + + /*************************************************************************/ + /* */ + /* Memory Debugging */ + /* */ + /* FreeType now comes with an integrated memory debugger that is */ + /* capable of detecting simple errors like memory leaks or double */ + /* deletes. To compile it within your build of the library, you */ + /* should define FT_DEBUG_MEMORY here. */ + /* */ + /* Note that the memory debugger is only activated at runtime when */ + /* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */ + /* */ + /* Do not #undef this macro here since the build system might define */ + /* it for certain configurations only. */ + /* */ +#define FT_DEBUG_MEMORY + + + /*************************************************************************/ + /* */ + /* Module errors */ + /* */ + /* If this macro is set (which is _not_ the default), the higher byte */ + /* of an error code gives the module in which the error has occurred, */ + /* while the lower byte is the real error code. */ + /* */ + /* Setting this macro makes sense for debugging purposes only, since */ + /* it would break source compatibility of certain programs that use */ + /* FreeType 2. */ + /* */ + /* More details can be found in the files ftmoderr.h and fterrors.h. */ + /* */ +#undef FT_CONFIG_OPTION_USE_MODULE_ERRORS + + + /*************************************************************************/ + /* */ + /* Position Independent Code */ + /* */ + /* If this macro is set (which is _not_ the default), FreeType2 will */ + /* avoid creating constants that require address fixups. Instead the */ + /* constants will be moved into a struct and additional intialization */ + /* code will be used. */ + /* */ + /* Setting this macro is needed for systems that prohibit address */ + /* fixups, such as BREW. */ + /* */ +/* #define FT_CONFIG_OPTION_PIC */ + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** S F N T D R I V E R C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */ + /* embedded bitmaps in all formats using the SFNT module (namely */ + /* TrueType & OpenType). */ + /* */ +#define TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */ + /* load and enumerate the glyph Postscript names in a TrueType or */ + /* OpenType file. */ + /* */ + /* Note that when you do not compile the `PSNames' module by undefining */ + /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */ + /* contain additional code used to read the PS Names table from a font. */ + /* */ + /* (By default, the module uses `PSNames' to extract glyph names.) */ + /* */ +#define TT_CONFIG_OPTION_POSTSCRIPT_NAMES + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */ + /* access the internal name table in a SFNT-based format like TrueType */ + /* or OpenType. The name table contains various strings used to */ + /* describe the font, like family name, copyright, version, etc. It */ + /* does not contain any glyph name though. */ + /* */ + /* Accessing SFNT names is done through the functions declared in */ + /* `freetype/ftsnames.h'. */ + /* */ +#define TT_CONFIG_OPTION_SFNT_NAMES + + + /*************************************************************************/ + /* */ + /* TrueType CMap support */ + /* */ + /* Here you can fine-tune which TrueType CMap table format shall be */ + /* supported. */ +#define TT_CONFIG_CMAP_FORMAT_0 +#define TT_CONFIG_CMAP_FORMAT_2 +#define TT_CONFIG_CMAP_FORMAT_4 +#define TT_CONFIG_CMAP_FORMAT_6 +#define TT_CONFIG_CMAP_FORMAT_8 +#define TT_CONFIG_CMAP_FORMAT_10 +#define TT_CONFIG_CMAP_FORMAT_12 +#define TT_CONFIG_CMAP_FORMAT_13 +#define TT_CONFIG_CMAP_FORMAT_14 + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** T R U E T Y P E D R I V E R C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */ + /* a bytecode interpreter in the TrueType driver. */ + /* */ + /* By undefining this, you will only compile the code necessary to load */ + /* TrueType glyphs without hinting. */ + /* */ + /* Do not #undef this macro here, since the build system might */ + /* define it for certain configurations only. */ + /* */ +#define TT_CONFIG_OPTION_BYTECODE_INTERPRETER + + + /*************************************************************************/ + /* */ + /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */ + /* of the TrueType bytecode interpreter is used that doesn't implement */ + /* any of the patented opcodes and algorithms. The patents related to */ + /* TrueType hinting have expired worldwide since May 2010; this option */ + /* is now deprecated. */ + /* */ + /* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* */ + /* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, */ + /* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or */ + /* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time. */ + /* */ + /* This macro is only useful for a small number of font files (mostly */ + /* for Asian scripts) that require bytecode interpretation to properly */ + /* load glyphs. For all other fonts, this produces unpleasant results, */ + /* thus the unpatented interpreter is never used to load glyphs from */ + /* TrueType fonts unless one of the following two options is used. */ + /* */ + /* - The unpatented interpreter is explicitly activated by the user */ + /* through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag */ + /* when opening the FT_Face. */ + /* */ + /* - FreeType detects that the FT_Face corresponds to one of the */ + /* `trick' fonts (e.g., `Mingliu') it knows about. The font engine */ + /* contains a hard-coded list of font names and other matching */ + /* parameters (see function `tt_face_init' in file */ + /* `src/truetype/ttobjs.c'). */ + /* */ + /* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */ + /* */ + /* { */ + /* FT_Parameter parameter; */ + /* FT_Open_Args open_args; */ + /* */ + /* */ + /* parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING; */ + /* */ + /* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; */ + /* open_args.pathname = my_font_pathname; */ + /* open_args.num_params = 1; */ + /* open_args.params = ¶meter; */ + /* */ + /* error = FT_Open_Face( library, &open_args, index, &face ); */ + /* ... */ + /* } */ + /* */ +/* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */ + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */ + /* bytecode interpreter with a huge switch statement, rather than a call */ + /* table. This results in smaller and faster code for a number of */ + /* architectures. */ + /* */ + /* Note however that on some compiler/processor combinations, undefining */ + /* this macro will generate faster, though larger, code. */ + /* */ +#define TT_CONFIG_OPTION_INTERPRETER_SWITCH + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */ + /* TrueType glyph loader to use Apple's definition of how to handle */ + /* component offsets in composite glyphs. */ + /* */ + /* Apple and MS disagree on the default behavior of component offsets */ + /* in composites. Apple says that they should be scaled by the scaling */ + /* factors in the transformation matrix (roughly, it's more complex) */ + /* while MS says they should not. OpenType defines two bits in the */ + /* composite flags array which can be used to disambiguate, but old */ + /* fonts will not have them. */ + /* */ + /* http://www.microsoft.com/typography/otspec/glyf.htm */ + /* http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html */ + /* */ +#undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */ + /* support for Apple's distortable font technology (fvar, gvar, cvar, */ + /* and avar tables). This has many similarities to Type 1 Multiple */ + /* Masters support. */ + /* */ +#define TT_CONFIG_OPTION_GX_VAR_SUPPORT + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_BDF if you want to include support for */ + /* an embedded `BDF ' table within SFNT-based bitmap formats. */ + /* */ +#define TT_CONFIG_OPTION_BDF + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and */ + /* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */ + /* required. */ + /* */ +#define T1_MAX_DICT_DEPTH 5 + + + /*************************************************************************/ + /* */ + /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ + /* calls during glyph loading. */ + /* */ +#define T1_MAX_SUBRS_CALLS 16 + + + /*************************************************************************/ + /* */ + /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ + /* minimum of 16 is required. */ + /* */ + /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */ + /* */ +#define T1_MAX_CHARSTRINGS_OPERANDS 256 + + + /*************************************************************************/ + /* */ + /* Define this configuration macro if you want to prevent the */ + /* compilation of `t1afm', which is in charge of reading Type 1 AFM */ + /* files into an existing face. Note that if set, the T1 driver will be */ + /* unable to produce kerning distances. */ + /* */ +#undef T1_CONFIG_OPTION_NO_AFM + + + /*************************************************************************/ + /* */ + /* Define this configuration macro if you want to prevent the */ + /* compilation of the Multiple Masters font support in the Type 1 */ + /* driver. */ + /* */ +#undef T1_CONFIG_OPTION_NO_MM_SUPPORT + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** A U T O F I T M O D U L E C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Compile autofit module with CJK (Chinese, Japanese, Korean) script */ + /* support. */ + /* */ +#define AF_CONFIG_OPTION_CJK + + /*************************************************************************/ + /* */ + /* Compile autofit module with Indic script support. */ + /* */ +#define AF_CONFIG_OPTION_INDIC + + /*************************************************************************/ + /* */ + /* Compile autofit module with warp hinting. The idea of the warping */ + /* code is to slightly scale and shift a glyph within a single dimension */ + /* so that as much of its segments are aligned (more or less) on the */ + /* grid. To find out the optimal scaling and shifting value, various */ + /* parameter combinations are tried and scored. */ + /* */ + /* This experimental option is only active if the render mode is */ + /* FT_RENDER_MODE_LIGHT. */ + /* */ +#define AF_CONFIG_OPTION_USE_WARPER + + /* */ + + + /* + * Define this variable if you want to keep the layout of internal + * structures that was used prior to FreeType 2.2. This also compiles in + * a few obsolete functions to avoid linking problems on typical Unix + * distributions. + * + * For embedded systems or building a new distribution from scratch, it + * is recommended to disable the macro since it reduces the library's code + * size and activates a few memory-saving optimizations as well. + */ +#define FT_CONFIG_OPTION_OLD_INTERNALS + + + /* + * To detect legacy cache-lookup call from a rogue client (<= 2.1.7), + * we restrict the number of charmaps in a font. The current API of + * FTC_CMapCache_Lookup() takes cmap_index & charcode, but old API + * takes charcode only. To determine the passed value is for cmap_index + * or charcode, the possible cmap_index is restricted not to exceed + * the minimum possible charcode by a rogue client. It is also very + * unlikely that a rogue client is interested in Unicode values 0 to 15. + * + * NOTE: The original threshold was 4 deduced from popular number of + * cmap subtables in UCS-4 TrueType fonts, but now it is not + * irregular for OpenType fonts to have more than 4 subtables, + * because variation selector subtables are available for Apple + * and Microsoft platforms. + */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS +#define FT_MAX_CHARMAP_CACHEABLE 15 +#endif + + + /* + * This macro is defined if either unpatented or native TrueType + * hinting is requested by the definitions above. + */ +#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER +#define TT_USE_BYTECODE_INTERPRETER +#undef TT_CONFIG_OPTION_UNPATENTED_HINTING +#elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING +#define TT_USE_BYTECODE_INTERPRETER +#endif + +FT_END_HEADER + + +#endif /* __FTOPTION_H__ */ + + +/* END */ diff --git a/docs/CHANGES b/docs/CHANGES new file mode 100644 index 0000000..ae57932 --- /dev/null +++ b/docs/CHANGES @@ -0,0 +1,3647 @@ + +CHANGES BETWEEN 2.4.8 and 2.4.9 + + I. IMPORTANT BUG FIXES + + - Another round of fixes to better handle invalid fonts. Many of + them are vulnerabilities (see CVE-2012-1126 up to CVE-2012-1144 + and SA48320) so all users should upgrade. + + + II. MISCELLANEOUS + + - The `ENCODING -1 ' format of BDF fonts is now supported. + + - For BDF fonts, support for the whole Unicode encoding range has + been added. + + - Better TTF support for x_ppem != y_ppem. + + - `FT_Get_Advances' sometimes returned bogus values. + + - The demo programs no longer recognize and handle default + suffixes; you now have to always specify the complete font name. + + - Better rendering and LCD mode cycling added to ftview. + + +====================================================================== + +CHANGES BETWEEN 2.4.7 and 2.4.8 + + I. IMPORTANT BUG FIXES + + - Some vulnerabilities in handling CID-keyed PostScript fonts have + been fixed; see CVE-2011-3439. + + + II. MISCELLANEOUS + + - Chris Liddell contributed a new API, `FT_Get_PS_Font_Value', to + retrieve most of the dictionary keys in Type 1 fonts. + + +====================================================================== + +CHANGES BETWEEN 2.4.6 and 2.4.7 + + I. IMPORTANT BUG FIXES + + - Some vulnerabilities in handling Type 1 fonts have been fixed; + see CVE-2011-3256. + + + II. MISCELLANEOUS + + - FreeType now properly handles ZapfDingbats glyph names while + constructing a Unicode character map (for fonts which don't have + one). + + +====================================================================== + +CHANGES BETWEEN 2.4.5 and 2.4.6 + + I. IMPORTANT BUG FIXES + + - For TrueType based fonts, the ascender and descender values were + incorrect sometimes (off by a pixel if the ppem value was not a + multiple of 5). Depending on the use you might now experience + a different layout; the change should result in better, more + consistent line spacing. + + - Fix CVE-2011-0226 which causes a vulnerability while handling + Type 1 fonts. + + - BDF fonts containing glyphs with negative values for ENCODING + were incorrectly rejected. This bug has been introduced in + FreeType version 2.2.0. + + - David Bevan contributed a major revision of the FreeType stroker + code: + + . The behaviour of FT_STROKER_LINEJOIN_BEVEL has been corrected. + + . A new line join style, FT_STROKER_LINEJOIN_MITER_FIXED, has + been introduced to support PostScript and PDF miter joins. + + . FT_STROKER_LINEJOIN_MITER_VARIABLE has been introduced as an + alias for FT_STROKER_LINEJOIN_MITER. + + . Various stroking glitches has been fixed. + + + II. MISCELLANEOUS + + - SFNT bitmap fonts which contain an outline glyph for `.notdef' + only no longer set the FT_FACE_FLAG_SCALABLE flag. + + +====================================================================== + +CHANGES BETWEEN 2.4.4 and 2.4.5 + + I. IMPORTANT BUG FIXES + + - A rendering regression for second-order Bézier curves has been + fixed, introduced in 2.4.3. + + + II. IMPORTANT CHANGES + + - If autohinting is not explicitly disabled, FreeType now uses + the autohinter if a TrueType based font doesn't contain native + hints. + + - The load flag FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH has been made + redundant and is simply ignored; this means that FreeType now + ignores the global advance width value in TrueType fonts. + + + III. MISCELLANEOUS + + - `FT_Sfnt_Table_Info' can now return the number of SFNT tables of + a font. + + - Support for PCF files compressed with bzip2 has been contributed + by Joel Klinghed. To make this work, the OS must provide a + bzip2 library. + + - Bradley Grainger contributed project and solution files in + Visual Studio 2010 format. + + - Again some fixes to better handle broken fonts. + + - Some improvements to the B/W rasterizer. + + - Fixes to the cache module to improve robustness. + + - Just Fill Bugs contributed (experimental) code to compute blue + zones for CJK Ideographs, improving the alignment of horizontal + stems at the top or bottom edges. + + - The `ftgrid' demo program can now display autohinter segments, + to be toggled on and off with key `s'. + + +====================================================================== + +CHANGES BETWEEN 2.4.3 and 2.4.4 + + I. IMPORTANT BUG FIXES + + - UVS support (TrueType/OpenType cmap format 14) support is fixed. + This regression has been introduced in version 2.4.0. + + + II. MISCELLANEOUS + + - Detect tricky fonts (e.g. MingLiU) by the lengths and checksums + of Type42-persistent subtables (`cvt ', `fpgm', and `prep') when + a TrueType font without family name is given. The previous fix, + introduced in 2.4.3, was too rigorous, causing many subsetted + fonts (mainly from PDF files) displayed badly because FreeType + forced rendering with the TrueType bytecode engine instead of + the autohinter. + + - Better support for 64bit platforms. + + - More fixes to improve handling of broken fonts. + + +====================================================================== + +CHANGES BETWEEN 2.4.2 and 2.4.3 + + I. IMPORTANT BUG FIXES + + - Fix rendering of certain cubic, S-shaped arcs. This regression + has been introduced in version 2.4.0. + + + II. MISCELLANEOUS + + - To fix the above mentioned rendering issue, a new spline + flattening algorithm has been introduced which speeds up both + conic and cubic arcs. + + - Handling of broken fonts has been further improved. + + +====================================================================== + +CHANGES BETWEEN 2.4.1 and 2.4.2 + + I. IMPORTANT BUG FIXES + + - A stack overflow in CFF Type2 CharStrings interpreter is fixed. + + - Handling Type 42 font deallocation was broken; additionally, the + library is now more robust against malformed Type 42 fonts. + + + II. MISCELLANEOUS + + - Two new functions, `FT_Reference_Library' (in FT_MODULE_H) and + `FT_Reference_Face' (in FT_FREETYPE_H), have been added to + simplify life-cycle management. A counter gets initialized to 1 + at the time an FT_Library (or FT_Face) structure is created. + The two new functions increment the respective counter. + `FT_Done_Library' and `FT_Done_Face' then only destroy a library + or face if the counter is 1, otherwise they simply decrement the + counter. + + +====================================================================== + +CHANGES BETWEEN 2.4.0 and 2.4.1 + + I. IMPORTANT CHANGES + + - A serious bug in the CFF font module prevented display of many + glyphs in CFF fonts like `MinionPro-Regular.otf'. + + +====================================================================== + +CHANGES BETWEEN 2.3.12 and 2.4.0 + + I. IMPORTANT CHANGES + + - Since May 2010, all patents regarding the TrueType bytecode + interpreter have expired worldwide. Consequently, we now define + TT_CONFIG_OPTION_BYTECODE_INTERPRETER by default (and undefine + TT_CONFIG_OPTION_UNPATENTED_HINTING). + + - A new function `FT_Library_SetLcdFilterWeights' is available to + adjust the filter weights set by `FT_Library_SetLcdFilter'. + + + II. MISCELLANEOUS + + - Thanks to many reports from Robert Święcki, FreeType's stability + in handling broken or damaged fonts is much improved. + + - Support for LCD filter control has been added to the demo + programs `ftdiff' and `ftview'. + + +====================================================================== + +CHANGES BETWEEN 2.3.11 and 2.3.12 + + I. IMPORTANT CHANGES + + - For `FT_Open_Face', new parameters are available to ignore + preferred family names: FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY and + FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY. + + + II. MISCELLANEOUS + + - Support for incremental font loading (controlled with the + FT_CONFIG_OPTION_INCREMENTAL macro) is now active by default. + + - Better support for vertical metrics. + + - Various minor bug fixes. + + +====================================================================== + +CHANGES BETWEEN 2.3.10 and 2.3.11 + + I. IMPORTANT BUG FIXES + + - Version 2.3.10 broke PCF support. + + +====================================================================== + +CHANGES BETWEEN 2.3.10 and 2.3.9 + + I. IMPORTANT BUG FIXES + + - If all ASCII digits in a font have the same (unscaled) width, + the autohinter respects this and won't change it. + + - TrueType fonts are now rasterized correctly if the horizontal + and vertical resolution differ. + + - Type 1 fonts are now handled with increased precision internally + to avoid serious rounding issues if non-integral coordinates are + encountered. + + - Horizontally condensed CFF fonts (using the font matrix) were + rendered incorrectly. This bug has been introduced after + release 2.3.5. + + + II. IMPORTANT CHANGES + + - Support for the SFNT cmap 13 table format (as defined by the new + OpenType 1.6 specification) has been added. + + - B/W rasterization of well-hinted TrueType fonts at small sizes + has been greatly improved. + + - Calculation of vertical metrics in OpenType fonts has been + improved. + + + III. MISCELLANEOUS + + - It is now possible to change the emboldening factor in the + `ftview' demo program with keys `e' and `E'. + + - It is now possible to change the slant value in the `ftview' + demo program with keys `s' and `S'. + + - The 5-levels grayscale mode of the `ftraster' module (which + FreeType doesn't use by default) was broken since version 2.3.0. + + - Compilation of the `ftgrays' and `ftraster' modules was broken + in stand-alone mode. + + - Various fixes for compilation on 64bit and 16bit architectures. + + +====================================================================== + +CHANGES BETWEEN 2.3.9 and 2.3.8 + + I. IMPORTANT BUG FIXES + + - Very unfortunately, FreeType 2.3.8 contained a change that broke + its official ABI. The end result is that programs compiled + against previous versions of the library, but dynamically linked + to 2.3.8 can experience memory corruption if they call the + `FT_Get_PS_Font_Info' function. + + We recommend all users to upgrade to 2.3.9 as soon as possible, + or to downgrade to a previous release of the library if this is + not an option. + + The origin of the bug is that a new field was added to the + publicly defined `PS_FontInfoRec' structure. Unfortunately, + objects of this type can be stack or heap allocated by callers + of `FT_Get_PS_Font_Info', resulting in a memory buffer + overwrite with its implementation in 2.3.8. + + If you want to know whether your code is vulnerable to this + issue, simply search for the substrings `PS_FontInfo' and + `PS_Font_Info' in your source code. If none is found, your code + is safe and is not affected. + + The FreeType team apologizes for the problem. + + - The POSIX support of MacOS resource-fork fonts (Suitcase fonts + and LaserWriter Type1 PostScript fonts) was broken in 2.3.8. If + FreeType2 is built without Carbon framework, these fonts are not + handled correctly. Version 2.3.7 didn't have this bug. + + - `FT_Get_Advance' (and `FT_Get_Advances') returned bad values for + almost all font formats except TrueType fonts. + + - Fix a bug in the SFNT kerning table loader/parser which could + crash the engine if certain malformed tables were encountered. + + - Composite SFNT bitmaps are now handled correctly. + + + II. IMPORTANT CHANGES + + - The new functions `FT_Get_CID_Is_Internally_CID_keyed' and + `FT_Get_CID_From_Glyph_Index' can be used to access CID-keyed + CFF fonts via CID values. This code has been contributed by + Michael Toftdal. + + + III. MISCELLANEOUS + + - `FT_Outline_Get_InsideBorder' returns FT_STROKER_BORDER_RIGHT + for empty outlines. This was incorrectly documented. + + - The `ftview' demo program now supports UTF-8 encoded strings. + + +====================================================================== + +CHANGES BETWEEN 2.3.8 and 2.3.7 + + I. IMPORTANT BUG FIXES + + - CID-keyed fonts in an SFNT wrapper were not handled correctly. + + - The smooth renderer produced truncated images (on the right) for + outline parts with negative horizontal values. Most fonts don't + contain outlines left to the y coordinate axis, but the effect + was very noticeable for outlines processed with FT_Glyph_Stroke, + using thick strokes. + + - `FT_Get_TrueType_Engine_Type' returned a wrong value if both + configuration macros TT_CONFIG_OPTION_BYTECODE_INTERPRETER and + TT_CONFIG_OPTION_UNPATENTED_HINTING were defined. + + - The `face_index' field in the `FT_Face' structure wasn't + initialized properly after calling FT_Open_Face and friends with + a positive face index for CFFs, WinFNTs, and, most importantly, + for TrueType Collections (TTCs). + + + II. IMPORTANT CHANGES + + - Rudimentary support for Type 1 fonts and CID-keyed Type 1 fonts + in an SFNT wrapper has been added -- such fonts are used on the + Mac. The core SFNT tables `TYP1' and `CID ' are passed to the + PS Type 1 and CID-keyed PS font drivers; other tables (`ALMX', + `BBOX', etc.) are not supported yet. + + - A new interface to extract advance values of glyphs without + loading their outlines has been added. The functions are called + `FT_Get_Advance' and `FT_Get_Advances'; they are defined in file + `ftadvanc.h' (to be accessed as FT_ADVANCES_H). + + - A new function `FT_Get_FSType_Flags' (in FT_FREETYPE_H) has been + contributed by David Bevan to access the embedding and + subsetting restriction information of fonts. + + + III. MISCELLANEOUS + + - FT_MulFix is now an inlined function; by default, assembler code + is provided for x86 and ARM. See FT_CONFIG_OPTION_INLINE_MULFIX + and FT_CONFIG_OPTION_NO_ASSEMBLER (in ftoption.h) for more. + + - The handling of `tricky' fonts (this is, fonts which don't work + with the autohinter, needing the font format's hinting engine) + has been generalized and changed slightly: + + . A new face flag FT_FACE_FLAG_TRICKY indicates that the font + format's hinting engine is necessary for correct rendering. + The macro FT_IS_TRICKY can be used to check this flag. + + . FT_LOAD_NO_HINTING is now ignored for tricky fonts. To really + force raw loading of such fonts (without hinting), both + FT_LOAD_NO_HINTING and FT_LOAD_NO_AUTOHINT must be used -- + this is something which you probably never want to do. + + . Tricky TrueType fonts always use the bytecode interpreter, + either the patented or unpatented version. + + - The function `FT_GlyphSlot_Own_Bitmap' has been moved from + FT_SYNTHESIS_H to FT_BITMAP_H; it is now part of the `official' + API. (The functions in FT_SYNTHESIS_H are still subject to + change, however.) + + - In the `ftdiff' demo program you can now toggle the use of + FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH with key `a'. + + +====================================================================== + +CHANGES BETWEEN 2.3.7 and 2.3.6 + + I. IMPORTANT BUG FIXES + + - If the library was compiled on an i386 platform using gcc, and + compiler option -O3 was given, `FT_MulFix' sometimes returned + incorrect results which could have caused problems with + `FT_Request_Metrics' and `FT_Select_Metrics', returning an + incorrect descender size. + + - Pure CFFs without subfonts were scaled incorrectly if the font + matrix was non-standard. This bug has been introduced in + version 2.3.6. + + - The `style_name' field in the `FT_FaceRec' structure often + contained a wrong value for Type 1 fonts. This misbehaviour + has been introduced in version 2.3.6 while trying to fix + another problem. [Note, however, that this value is + informative only since the used algorithm to extract it is + very simplistic.] + + + II. IMPORTANT CHANGES + + - Two new macros, FT_OUTLINE_SMART_DROPOUTS and + FT_OUTLINE_EXCLUDE_STUBS, have been introduced. Together with + FT_OUTLINE_IGNORE_DROPOUTS (which was ignored previously) it is + now possible to control the dropout mode of the `raster' module + (for B&W rasterization), using the `flags' field in the + `FT_Outline' structure. + + - The TrueType bytecode interpreter now passes the dropout mode to + the B&W rasterizer. This greatly increases the output for small + ppem values of many fonts like `pala.ttf'. + + +====================================================================== + +CHANGES BETWEEN 2.3.6 and 2.3.5 + + I. IMPORTANT BUG FIXES + + - A bunch of potential security problems have been found. All + users should update. + + - Microsoft Unicode cmaps in TrueType fonts are now always + preferred over Apple cmaps. This is not a bug per se, but there + exist some buggy fonts created for MS which have broken Apple + cmaps. This affects only the automatic selection of FreeType; + it's always possible to manually select an Apple Unicode cmap if + desired. + + - Many bug fixes to the TrueType bytecode interpreter. + + - Improved Mac support. + + - Subsetted CID-keyed CFFs are now supported correctly. + + - CID-keyed CFFs with subfonts which are scaled in a non-standard + way are now handled correctly. + + - A call to FT_Open_Face with `face_index' < 0 crashed FreeType if + the font was a Windows (bitmap) FNT/FON. + + + II. IMPORTANT CHANGES + + - The new function `FT_Get_CID_Registry_Ordering_Supplement' gives + access to those fields in a CID-keyed font. The code has been + contributed by Derek Clegg. + + - George Williams contributed code to validate the new `MATH' + OpenType table (within the `otvalid' module). The `ftvalid' + demo program has been extended accordingly. + + - An API for cmap 14 support (for Unicode Variant Selectors, UVS) + has been contributed by George Williams. + + - A new face flag FT_FACE_FLAG_CID_KEYED has been added, together + with a macro FT_IS_CID_KEYED which evaluates to 1 if the font is + CID-keyed. + + + III. MISCELLANEOUS + + - Build support for symbian has been contributed. + + - Better WGL4 glyph name support, contributed by Sergey Tolstov. + + - Debugging output of the various FT_TRACEX macros is now sent to + stderr. + + - The `ftview' demo program now provides artificial slanting too. + + - The `ftvalid' demo program has a new option `-f' to select the + font index. + + +====================================================================== + +CHANGES BETWEEN 2.3.5 and 2.3.4 + + I. IMPORTANT BUG FIXES + + - Some subglyphs in TrueType fonts were handled incorrectly due to + a missing graphics state reinitialization. + + - Large .Z files (as distributed with some X11 packages) weren't + handled correctly, making FreeType increase the heap stack in an + endless loop. + + - A large number of bugs have been fixed to avoid crashes and + endless loops with invalid fonts. + + + II. IMPORTANT CHANGES + + - The two new cache functions `FTC_ImageCache_LookupScaler' and + `FTC_SBit_Cache_LookupScaler' have been added to allow lookup of + glyphs using an `FTC_Scaler' object; this makes it possible to + use fractional pixel sizes in the cache. The demo programs have + been updated accordingly to use this feature. + + - A new API `FT_Get_CMap_Format' has been added to get the cmap + format of a TrueType font. This is useful in handling PDF + files. The code has been contributed by Derek Clegg. + + - The auto-hinter now produces better output by default for + non-Latin scripts like Indic. This was done by using the CJK + hinting module as the default instead of the Latin one. Thanks + to Rahul Bhalerao for this suggestion. + + - A new API `FT_Face_CheckTrueTypePatents' has been added to find + out whether a given TrueType font uses patented bytecode + instructions. The `ft2demos' bundle contains a new program + called `ftpatchk' which demonstrates its usage. + + - A new API `FT_Face_SetUnpatentedHinting' has been added to + enable or disable the unpatented hinter. + + - Support for Windows FON files in PE format has been contributed + by Dmitry Timoshkov. + + + III. MISCELLANEOUS + + - Vincent Richomme contributed Visual C++ project files for Pocket + PCs. + + +====================================================================== + +CHANGES BETWEEN 2.3.4 and 2.3.3 + + I. IMPORTANT BUG FIXES + + - A serious bug in the handling of bitmap fonts (and bitmap + strikes of outline fonts) has been introduced in 2.3.3. + + +====================================================================== + +CHANGES BETWEEN 2.3.3 and 2.3.2 + + I. IMPORTANT BUG FIXES + + - Remove a serious regression in the TrueType bytecode interpreter + that was introduced in version 2.3.2. Note that this does not + disable the improvements introduced to the interpreter in + version 2.3.2, only some ill cases that occurred with certain + fonts (though a few popular ones). + + - The auto-hinter now ignores single-point contours for computing + blue zones. This bug created `wavy' baselines when rendering + text with various fonts that use these contours to model + mark-attach points (these are points that are never rasterized + and are placed outside of the glyph's real outline). + + - The `rsb_delta' and `lsb_delta' glyph slot fields are now set to + zero for mono-spaced fonts. Otherwise code that uses them would + essentially ruin the fixed-advance property. + + - Fix CVE-2007-1351 which can cause an integer overflow while + parsing BDF fonts, leading to a potentially exploitable heap + overflow condition. + + + II. MISCELLANEOUS + + - Fixed compilation issues on some 64-bit platforms (see ChangeLog + for details). + + - A new demo program `ftdiff' has been added to compare TrueType + hinting, FreeType's auto hinting, and rendering without hinting + in three columns. + + +====================================================================== + +CHANGES BETWEEN 2.3.2 and 2.3.1 + + I. IMPORTANT BUG FIXES + + - FreeType returned incorrect kerning information from TrueType + fonts when the bytecode interpreter was enabled. This happened + due to a typo introduced in version 2.3.0. + + - Negative kerning values from PFM files are now reported + correctly (they were read as 16-bit unsigned values from the + file). + + - Fixed a small memory leak when `FT_Init_FreeType' failed for + some reason. + + - The Postscript hinter placed and sized very thin and ghost stems + incorrectly. + + - The TrueType bytecode interpreter has been fixed to get rid of + most of the rare differences seen in comparison to the Windows + font loader. + + + II. IMPORTANT CHANGES + + - The auto-hinter now better deals with serifs and corner cases + (e.g., glyph '9' in Arial at 9pt, 96dpi). It also improves + spacing adjustments and doesn't change widths for non-spacing + glyphs. + + - Many Mac-specific functions are deprecated (but still + available); modern replacements have been provided for them. + See the documentation in file `ftmac.h'. + + +====================================================================== + +CHANGES BETWEEN 2.3.1 and 2.3.0 + + I. IMPORTANT BUG FIXES + + - The TrueType interpreter sometimes returned incorrect horizontal + metrics due to a bug in the handling of the SHZ instruction. + + - A typo in a security check introduced after version 2.2.1 + prevented FreeType to render some glyphs in CFF fonts. + + +====================================================================== + +CHANGES BETWEEN 2.3.0 and 2.2.1 + + I. IMPORTANT BUG FIXES + + - The PCF font loader is now much more robust while loading + malformed font files. + + - Various memory leaks have been found and fixed. + + - The TrueType name loader now deals properly with some fonts that + encode their names in UTF-16 (the specification was vague, and + the code incorrectly assumed UCS-4). + + - Fixed the TrueType bytecode loader to deal properly with subtle + monochrome/gray issues when scaling the CVT. Some fonts + exhibited bad rendering artifacts otherwise. + + - `FT_GlyphSlot_Embolden' now supports vertical layouts correctly + (it mangled the vertical advance height). + + - Fixed byte endian issues of `ftmac.c' to support Mac OS X on + i386. + + - The PFR font loader no longer erroneously tags font files + without any outlines as FT_FACE_FLAG_SCALABLE. + + + II. NEW API FUNCTIONS + + - `FT_Library_SetLcdFilter' allows you to select a special filter + to be applied to the bitmaps generated by `FT_Render_Glyph' if + one of the FT_RENDER_MODE_LCD and FT_RENDER_MODE_LCD_V modes has + been selected. This filter is used to reduce color fringes; + several settings are available through the FT_LCD_FILTER_XXX + enumeration. + + Its declaration and documentation can be found in file + `include/freetype/ftlcdfil.h' (to be accessed with macro + FT_LCD_FILTER_H). + + *IMPORTANT*: This function returns an error + (FT_Err_Unimplemented_Feature) in default builds of the library + for patent reasons. See below. + + - `FT_Get_Gasp' allows you to query the flags of the TrueType + `gasp' table for a given character pixel size. This is useful + to duplicate the text rendering of MS Windows when the native + bytecode interpreter is enabled (which isn't the default for + other patent reasons). + + Its declaration and documentation can be found in file + `include/freetype/ftgasp.h' (to be accessed with macro + FT_GASP_H). + + + III. IMPORTANT CHANGES + + - The auto-hinter has been tuned a lot to improve its results with + serif fonts, resulting in much better font rendering of many web + pages. + + - The unpatented hinter is now part of the default build of the + library; we have added code to automatically support `tricky' + fonts that need it. + + This means that FreeType should `just work' with certain Asian + fonts, like MingLiU, which cannot properly be loaded without a + bytecode interpreter, but which fortunately do not use any of + the patented bytecode opcodes. We detect these fonts by name, + so please report any font file that doesn't seem to work with + FreeType, and we shall do what we can to support it in a next + release. + + Note that the API hasn't changed, so you can still force + unpatented hinting with a special parameter to `FT_Open_Face' as + well. This might be useful in same cases; for example, a PDF + reader might present a user option to activate it to deal with + certain `tricky' embedded fonts which cannot be clearly + identified. + + If you are a developer for embedded systems, you might want to + *disable* the feature to save code space by undefining + TT_CONFIG_OPTION_UNPATENTED_HINTING in file `ftoption.h'. + + - LCD-optimized rendering is now *disabled* in all default builds + of the library, mainly due to patent issues. For more + information see: + + http://lists.gnu.org/archive/html/freetype/2006-09/msg00064.html + + A new configuration macro FT_CONFIG_OPTION_SUBPIXEL_RENDERING + has been introduced in `ftoption.h'; manually define it in this + file if you want to re-enable the feature. + + The change only affects the implementation, not the FreeType + API. This means that clients don't need to be modified, because + the library still generates LCD decimated bitmaps, but with the + added constraint that R=G=B on each triplet. + + The displayed result should be equal to normal anti-aliased + rendering. + + Additionally, if FT_CONFIG_OPTION_SUBPIXEL_RENDERING is not + defined, the new `FT_Library_SetLcdFilter' function returns the + FT_Err_Unimplemented_Feature error code. + + - Some computation bugs in the TrueType bytecode interpreter were + found, which allow us to get rid of very subtle and rare + differences we had experienced with the Windows renderer. + + - It is now possible to cross-compile the library easily. See the + file `docs/INSTALL.CROSS' for details. + + - The file `src/base/ftmac.c' now contains code for Mac OS X only; + its deprecated function `FT_GetFile_From_Mac_Font_Name' always + returns an error even if the QuickDraw framework is available. + The previous version has been moved to `builds/mac/ftmac.c'. + + Selecting configure option `--with-quickdraw-carbon' makes the + build process use the original `ftmac.c' file instead of the Mac + OS X-only version. + + + IV. MISCELLANEOUS + + - Various performance and memory footprint optimizations have been + performed on the TrueType and CFF font loaders, sometimes with + very drastic benefits (e.g., the TrueType loader is now about + 25% faster; FreeType should use less heap memory under nearly + all conditions). + + - The anti-aliased rasterizer has been optimized and is now 15% to + 25% percent faster than in previous versions, depending on + content. + + - The Type 1 loader has been improved; as an example, it now skips + top-level dictionaries properly. + + - Better support for Mac fonts on POSIX systems, plus compilation + fixes for Mac OS X on ppc64 where `ftmac.c' cannot be built. + + - Configuration without `--with-old-mac-fonts' does not include + `ftmac.c' (this was the behaviour in FreeType version 2.1.10). + + - The TrueTypeGX validator (gxvalid) checks the order of glyph IDs + in the kern table. + + +====================================================================== + +CHANGES BETWEEN 2.2.1 and 2.2 + + I. IMPORTANT BUG FIXES + + - Various integer overflows have been fixed. + + - PFB fonts with MacOS resource fork weren't handled correctly on + non-MacOS platforms. + + +====================================================================== + +CHANGES BETWEEN 2.2 and 2.1.10 + +(not released officially) + + I. IMPORTANT BUG FIXES + + - Vertical metrics for SFNT fonts were incorrect sometimes. + + - The FT_HAS_KERNING macro always returned 0. + + - CFF OpenType fonts didn't return correct vertical metrics for + glyphs with outlines. + + - If FreeType was compiled without hinters, all font formats based + on PS outlines weren't scaled correctly. + + + II. IMPORTANT CHANGES + + - Version 2.2 no longer exposes its internals, this is, the header + files located in the `include/freetype/internal' directory of + the source package are not copied anymore by the `make install' + command. Consequently, a number of rogue clients which directly + access FreeType's internal functions and structures won't + compile without modification. + + We provide patches for most of those rogue clients. See the + following page for more information: + + http://www.freetype.org/freetype2/patches/rogue-patches.html + + Note that, as a convenience to our Unix desktop users, version + 2.2 is *binary* compatible with FreeType 2.1.7, which means that + installing this release on an existing distribution shall not + break any working desktop. + + - FreeType's build mechanism has been redesigned. With GNU make + it is now sufficient in most cases to edit two files: + `modules.cfg', to select the library components, and the + configuration file `include/freetype/config/ftoption.h' (which + can be copied to the objects directory). Removing unused module + directories to prevent its compilation and editing + `include/freetype/config/ftmodule.h' is no longer necessary. + + - The LIGHT hinting algorithm produces more pleasant results. + Also, using the FT_LOAD_TARGET_LIGHT flags within FT_Load_Glyph + always forces auto-hinting, as a special exception. This allows + you to experiment with it even if you have enabled the TrueType + bytecode interpreter in your build. + + - The auto hinter now employs a new algorithm for CJK fonts, based + on Akito Hirai's patch. Note that this only works for fonts + with a Unicode charmap at the moment. + + - The following callback function types have changed slightly (by + adding the `const' keyword where appropriate): + + FT_Outline_MoveToFunc + FT_Outline_LineToFunc + FT_Outline_ConicToFunc + FT_Outline_CubicToFunc + FT_SpanFunc + FT_Raster_RenderFunc + + FT_Glyph_TransformFunc + FT_Renderer_RenderFunc + FT_Renderer_TransformFunc + + Note that this doesn't affect binary backward compatibility. + + - On MacOS, new APIs have been added as replacements for legacy + APIs: `FT_New_Face_From_FSRef' for `FT_New_Face_From_FSSpec', + and `FT_GetFile_From_Mac_ATS_Name' for + `FT_GetFile_From_Mac_Name'. Legacy APIs are still available, if + FreeType is built without disabling them. + + - A new API `FT_Select_Size' has been added to select a bitmap + strike by its index. Code using other functions to select + bitmap strikes should be updated to use this function. + + - A new API `FT_Get_SubGlyph_Info' has been added to retrieve + subglyph data. This can be used by rogue clients which used to + access the internal headers to get the corresponding data. + + - In 2.1.10, the behaviour of `FT_Set_Pixel_Sizes' was changed for + BDF/PCF fonts, and only for them. This causes inconsistency. + In this release, we undo the change. The intent of the change + in 2.1.10 is to allow size selection through real dimensions, + which can now be done through `FT_Request_Size'. + + - Some security issues were discovered and fixed in the CFF and + Type 1 loader, causing crashes of FreeType by malformed font + files. + + + III. MISCELLANEOUS + + - The documentation for FT_LOAD_TARGET_XXX and FT_RENDER_MODE_XXX + values now better reflects its usage and differences: One set is + used to specify the hinting algorithm, the other to specify the + pixel rendering mode. + + - `FT_New_Face' and `FT_New_Face_From_FSSpec' in ftmac.c have been + changed to count supported scalable faces (sfnt, LWFN) only, and + to return the number of available faces via face->num_faces. + Unsupported bitmap faces (fbit, NFNT) are ignored. + + - builds/unix/configure has been improved for MacOS X. It now + automatically checks available functions in Carbon library, and + prepare to use newest functions by default. Options to specify + the dependencies of each Carbon APIs (FSSpec, FSRef, old/new + QuickDraw, ATS) are available too. By manual disabling of all + QuickDraw functionality, FreeType can be built without + `deprecated function' warnings on MacOS 10.4.x, but + FT_GetFile_Mac_Name in ftmac.c then is changed to a dummy + function, and returns an `unimplemented' error. For details see + builds/mac/README. + + - SFNT cmap handling has been improved, mainly to run much faster + with CJK fonts. + + - A new function `FT_Get_TrueType_Engine_Type (declared in + `FT_MODULE_H') is provided to determine the status of the + TrueType bytecode interpreter compiled into the library + (patented, unpatented, unimplemented). + + - Vertical metrics of glyphs are synthesized if the font does not + provide such information. You can tell whether the metrics are + synthesized or not by checking the FT_FACE_FLAG_VERTICAL flag of + the face. + + - The demo programs `ftview' and `ftstring' have been rewritten + for better readability. `ftview' has a new switch `-p' to test + FT_New_Memory_Face (instead of FT_New_Face). + + - FreeType now honours bit 1 in the `head' table of TrueType fonts + (meaning `left sidebearing point at x=0'). This helps with some + buggy fonts. + + - Rudimentary support for Adobe's new `SING Glyphlet' format. See + + http://www.adobe.com/products/indesign/sing_gaiji.html + + for more information. + + - The `ftdump' program from the `ft2demos' bundle now shows some + information about charmaps. It also supports a new switch `-v' + to increase verbosity. + + - Better AFM support. This includes track kerning support. + + +====================================================================== + +CHANGES BETWEEN 2.1.10 and 2.1.9 + + I. IMPORTANT BUG FIXES + + - The size comparison for BDF and PCF files could fail sometimes. + + - Some CFF files were still not loaded correctly. Patch from + Derek Noonburg. + + - The stroker still had some serious bugs. + + - Boris Letocha fixed a bug in the TrueType interpreter: The + NPUSHW instruction wasn't skipped correctly in IF clauses. Some + fonts like `Helvetica 75 Bold' failed. + + - Another serious bug in handling TrueType hints caused many + distortions. It has been introduced in version 2.1.8, and it is + highly recommended to upgrade. + + - FreeType didn't properly parse empty Type 1 glyphs. + + - An unbound dynamic buffer growth was fixed in the PFR loader. + + - Several bugs have been fixed in the cache sub-system. + + - FreeType behaved incorrectly when resizing two distinct but very + close character pixel sizes through `FT_Set_Char_Size' (Savannah + bug #12263). + + - The auto-hinter didn't work properly for fonts without a Unicode + charmap -- it even refused to load the glyphs. + + + II. IMPORTANT CHANGES + + - Many fixes have been applied to drastically reduce the amount of + heap memory used by FreeType, especially when using + memory-mapped font files (which is the default on Unix systems + which support them). + + - The auto-hinter has been replaced with a new module, called the + `auto-fitter'. It consumes less memory than its predecessor, + and it is prepared to support non-latin scripts better in next + releases. + + - George Williams contributed code to read kerning data from PFM + files. + + - FreeType now uses the TT_NAME_ID_PREFERRED_FAMILY and + TT_NAME_ID_PREFERRED_SUBFAMILY strings (if available) for + setting family and style in SFNT fonts (patch from Kornfeld + Eliyahu Peter). + + - A new API `FT_Sfnt_Table_Info' (in FT_TRUETYPE_TABLES_H) has + been added to retrieve name and size information of SFNT tables. + + - A new API `FT_OpenType_Validate' (in FT_OPENTYPE_VALIDATE_H) has + been added to validate OpenType tables (BASE, GDEF, GPOS, GSUB, + JSTF). After validation it is no longer necessary to check + for errors in those tables while accessing them. + + Note that this module might be moved to another library in the + future to avoid a tight dependency between FreeType and the + OpenType specification. + + - A new API in FT_BITMAP_H (`FT_Bitmap_New', `FT_Bitmap_Convert', + `FT_Bitmap_Copy', `FT_Bitmap_Embolden', `FT_Bitmap_Done') has + been added. Its use is to convert an FT_Bitmap structure in + 1bpp, 2bpp, 4bpp, or 8bpp format into another 8bpp FT_Bitmap, + probably using a different pitch, and to further manipulate it. + + - A new API `FT_Outline_Embolden' (in FT_OUTLINE_H) gives finer + control how outlines are embolded. + + - `FT_GlyphSlot_Embolden' (in FT_SYNTHESIS_H) now handles bitmaps + also (code contributed by Chia I Wu). Note that this function + is still experimental and may be replaced with a better API. + + - The method how BDF and PCF bitmap fonts are accessed has been + refined. Formerly, FT_Set_Pixel_Sizes and FT_Set_Char_Size + were synonyms in FreeType's BDF and PCF interface. This has + changed now. FT_Set_Pixel_Sizes should be used to select the + actual font dimensions (the `strike', which is the sum of the + `FONT_ASCENT' and `FONT_DESCENT' properties), while + FT_Set_Char_Size selects the `nominal' size (the `PIXELSIZE' + property). In both functions, the width parameter is ignored. + + + III. MISCELLANEOUS + + - The BDF driver no longer converts all returned bitmaps with a + depth of 2bpp or 4bpp to a depth of 8bpp. The documentation has + not mentioned this explicitly, but implementors might have + relied on this after looking into the source files. + + - A new option `--ftversion' has been added to freetype-config to + return the FreeType version. + + - The memory debugger has been updated to dump allocation + statistics on all allocation sources in the library. This is + useful to spot greedy allocations when loading and processing + fonts. + + - We removed a huge array of constant pointers to constant strings + in the `psnames' module. The problem was that compilations in + PIC mode (i.e., when generating a Unix shared object/dll) put + the array into the non-shared writable section of the library + since absolute pointers are not relocatable by nature. + + This reduces the memory consumption by approximately 16KByte per + process linked to FreeType. We now also store the array in a + compressed form (as a trie) which saves about 20KByte of code as + well. + + - Kirill Smelkov provided patches to make src/raster/ftraster.c + compile stand-alone again. + + +====================================================================== + +CHANGES BETWEEN 2.1.9 and 2.1.8 + + I. IMPORTANT BUG FIXES + + - The function `FT_Get_CharMap_Index' was only declared, without + any real code. For consistency, it has been renamed to + `FT_Get_Charmap_Index'. (This function is needed to implement + cmap caches.) + + - `FT_Outline_Get_BBox' sometimes returned incorrect values for + conic outlines (e.g., for TrueType fonts). + + - Handling of `bhed' table has been fixed. + + - The TrueType driver with enabled byte code interpreter sometimes + returned artifacts due to incorrect rounding. This bug has been + introduced after version 2.1.4. + + - The BDF driver dropped the last glyph in the font. + + - The BDF driver now uses the DEFAULT_CHAR property (if available) + to select a glyph shape for the undefined glyph. + + - The stroker failed for closed outlines and single points. + + + II. IMPORTANT CHANGES + + - George Williams contributed code to handle Apple's font + distortion technology found in GX fonts (`avar', `cvar', `fvar', + and `gvar' tables; the Multiple Masters API has been slightly + extended to cope with the new functionality). + + - The `FT_GlyphSlotRec' structure has been extended: The elements + `lsb_delta' and `rsb_delta' give the difference between hinted + and unhinted left and right side bearings if autohinting is + active. Using those values can improve the inter-letter spacing + considerably. See the documentation of `FT_GlyphSlotRec' and + the `ftstring' demo program how to use it. + + - Loading TrueType and Type 1 fonts has been made much faster. + + - The stroker is no longer experimental (but the cache subsystem + still is). + + + III. MISCELLANEOUS + + - A new documentation file `formats.txt' describes various font + formats supported (and not supported) by FreeType. + + +====================================================================== + +CHANGES BETWEEN 2.1.8 and 2.1.7 + + I. IMPORTANT BUG FIXES + + - The native TrueType hinter contained some bugs which prevented + some fonts to be rendered correctly, most notably Legendum.otf. + + - The PostScript hinter now produces improved results. + + - The linear advance width and height values were incorrectly + rounded, making them virtually unusable if not loaded with + FT_LOAD_LINEAR_DESIGN. + + - Indexing CID-keyed CFF fonts is now working: The glyph index is + correctly treated as a CID, similar to FreeType's CID driver + module. Note that CID CMap support is still missing. + + - The FT_FACE_FLAGS_GLYPH_NAMES flag is now set correctly for all + font formats. + + - Some subsetted Type 1 fonts weren't parsed correctly. This bug + has been introduced in 2.1.7. In summary, the Type 1 parser has + become more robust. + + - Non-decimal numbers weren't parsed correctly in PS fonts. + + - The WinFNT driver now correctly reports FT_ENCODING_NONE for all + but one encoding. Use the new FT_WinFNT_ID_XXX values together + with `FT_Get_WinFNT_Header' to get the WinFNT charset ID. + + - The descender metrics (face->size->metrics.descender) for WinFNT + bitmap fonts had the wrong sign. + + - The (emulated) `seac' support for CFF fonts was broken. + + - The `flex' operator didn't work for CFF fonts. + + - PS glyphs which use the `hintmask' operator haven't been + rendered correctly in some cases. + + - Metrics for BDF and PCF bitmap font formats have been fixed. + + - Autohinting is now disabled for glyphs which are vertically + distorted or mirrored (using a transformation matrix). This + fixes a bug which produced zero-height glyphs. + + - The `freetype-config' script now handles --prefix and + --exec-prefix correctly; it also returns the proper --rpath (or + -R) value if FreeType has been built as a shared library. + + + II. IMPORTANT CHANGES + + - Both PCF and BDF drivers now handle the SETWIDTH_NAME and + ADD_STYLE_NAME properties. Values are appended to + face->style_name; example: `Bold SemiCondensed'. + + - The PCF driver now handles bitmap fonts compressed with the LZW + algorithm (extension .pcf.Z, compressed with `compress'). + + - A new API function `FT_Get_CMap_Language_ID' (declared in + `tttables.h') is available to get the language ID of a + TrueType/SFNT cmap. + + - The hexadecimal format of data after the `StartData' command in + CID-keyed Type 1 fonts is now supported. While this can't occur + in file-based fonts, it can happen in document-embedded + resources of PostScript documents. + + - Embedded bitmaps in SFNT-based CFF fonts are now supported. + + - A simple API is now available to control FreeType's tracing + mechanism if compiled with FT_DEBUG_LEVEL_TRACE. See the file + `ftdebug.h' for more details. + + - YAMATO Masatake contributed improved handling of MacOS resource + forks on non-MacOS platforms (for example, Linux can mount MacOS + file systems). + + - Support for MacOS has been improved; there is now a new function + `FT_New_Face_From_FSSpec' similar to `FT_New_Face' except that + it accepts an FSSpec instead of a path. + + - The cache sub-system has been rewritten. + + - There is now support for deinstallation of faces. + + - A new API function `FTC_Manager_RemoveFaceID' has been added + to delete all `idle' nodes that correspond to a given + FTC_FaceID. All `locked' nodes (i.e., those with a reference + count > 0), will be modified to prevent them from appearing in + further lookups (they will be cleaned normally when their + reference count reaches 0). + + - There is now support for point scaling (i.e., providing + character sizes in points + dpis, instead of pixels). + + - Three abstract cache classes are now available: + + FTC_GCache: Used to store one glyph item per cache node, + with the ability to group common attributes into + `families'. This replaces the old + FTC_GlyphCache class. + + FTC_ICache: Used to store one FT_Glyph per cache node. This + extends FTC_GCache. Family definition, family + comparison, and glyph loading are however left + to sub-classes. + + FTC_SCache: Used to store up to 16 small bitmaps per cache + node. This extends FTC_GCache. Family + definition, family comparison and glyph loading + are however left to sub-classes. + + - The file `src/cache/ftcbasic.c' implements: + + FTC_ImageCache: Extends FTC_ICache; implements family + definitions and glyph loading similar to the + old API. + + FTC_SBitCache: Extends FTC_SCache, implements family + definitions and glyph loading similar to the + old API + + Client applications should be able to extend FTC_GCache, + FTC_ICache, or FTC_SCache much more easily (i.e., less code to + write, and less callbacks). For example, one could envision + caches that are capable of storing transformed (obliqued), + stroked, emboldened, or colored glyph images. Use + `ftcbasic.c' as an example. + + - All public APIs are now in `include/freetype/ftcache.h', (to + be accessed as `FT_CACHE_H'). The contents of + `include/freetype/cache/' is only needed by applications that + wish to implement their own caches. + + - There were some major performance improvements through the use + of various programming tricks. Cache hits are up to 70% + faster than in the old code. + + - The FTC_CMapCache has been simplified. Charmaps can only be + accessed by index right now. There is also a new API named + `FT_Charmap_GetIndex' for this purpose. + + - The demo programs have been updated to the new code. The + previous versions will not work with the current one. + + - Using an invalid face index in FT_Open_Face and friends now + causes an error even if the font contains a single face only. + + + III. MISCELLANEOUS + + - Wolfgang Domröse contributed support files for building FreeType + on the Atari using the PureC compiler. Note that the Atari is a + 16bit platform. + + - Vitaliy Pasternak contributed project files for VS.NET 2003. + + +====================================================================== + +CHANGES BETWEEN 2.1.7 and 2.1.6 + + I. IMPORTANT BUG FIXES + + - Updated to newest libtool version, fixing build problems on + various platforms. + + - On Unix platforms, `make install' didn't copy the correct + `ftconfig.h' file. + + Note that version 2.1.7 contains the same library C source code as + version 2.1.6. + + +====================================================================== + +CHANGES BETWEEN 2.1.6 and 2.1.5 + + I. IMPORTANT BUG FIXES + + - The PFR font driver didn't load kerning tables correctly, and + the functions in FT_PFR_H didn't work at all. + + - Type 1 font files in binary format (PFB) with an end-of-file + indicator weren't accepted by the FreeType engine. + + - Fonts which contain /PaintType and /StrokeWidth no longer cause + a segfault. This bug has been introduced in version 2.1.5. + + - Fonts loaded with FT_LOAD_RENDER no longer cause strange + results. This bug has been introduced in version 2.1.5. + + - Some Windows (bitmap) FNT/FON files couldn't be handled + correctly. + + + II. IMPORTANT CHANGES + + - The internal module API has been heavily changed in favor of + massive simplifications within the font engine. This also means + that authors of third-party modules must adapt their code to the + new scheme. + + NOTE: THE NEW SCHEME IS NOT COMPLETED YET. PLEASE WAIT UNTIL A + FINAL ANNOUNCEMENT! + + - The PostScript parser has been enhanced to handle comments and + strings correctly. Additionally, more syntax forms are + recognized. + + - Added the optional unpatented hinting system for TrueType. It + allows typefaces which need hinting to produce correct glyph + forms (e.g., Chinese typefaces from Dynalab) to work acceptably + without infringing Apple patents. This system is compiled only + if TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING is defined in + ftoption.h (activated by default). + + + III. MISCELLANEOUS + + - There is now a guard in the public header files to protect + against inclusion of freetype.h from FreeType 1. + + - Direct inclusion of freetype.h and other public header files no + longer works. You have to use the documented scheme + + #include + #include FT_FREETYPE_H + + to load freetype.h with a symbolic name. This protects against + renaming of public header files (which shouldn't happen but + actually has, avoiding two public header files with the same + name). + + +====================================================================== + +CHANGES BETWEEN 2.1.5 and 2.1.4 + + I. IMPORTANT BUG FIXES + + - Parsing the /CIDFontName field now removes the leading slash to + be in sync with other font drivers. + + - gzip support was buggy. Some fonts could not be read. + + - Fonts which have nested subglyphs more than one level deep no + longer cause a segfault. + + - Creation of synthetic cmaps for fonts in CFF format was broken + partially. + + - Numeric font dictionary entries for synthetic fonts are no + longer overwritten. + + - The font matrix wasn't applied to the advance width for Type1, + CID, and CFF fonts. This caused problems when loading certain + synthetic Type 1 fonts like `Helvetica Narrow'. + + - The test for the charset registry in BDF and PCF fonts is now + case-insensitive. + + - FT_Vector_Rotate sometimes returned strange values due to + rounding errors. + + - The PCF driver now returns the correct number of glyphs + (including an artificial `notdef' glyph at index 0). + + - FreeType now supports buggy CMaps which are contained in many + CJK fonts from Dynalab. + + - Opening an invalid font on a Mac caused a segfault due to + double-freeing memory. + + - BDF fonts with more than 32768 glyphs weren't supported + properly. + + + II. IMPORTANT CHANGES + + - Accessing bitmap font formats has been synchronized. To do that + the FT_Bitmap_Size structure has been extended to contain new + fields `size', `x_ppem', and `y_ppem'. + + - The FNT driver now returns multiple faces, not multiple strikes. + + - The `psnames' module has been updated to the Adobe Glyph List + version 2.0. + + - The `psnames' module now understands `uXXXX[X[X]]' glyph names. + + - The algorithm for guessing the font style has been improved. + + - For fonts in SFNT format, root->height is no longer increased if + the line gap is zero. There exist fonts (containing e.g. form + drawing characters) which intentionally have a zero line gap + value. + + - ft_glyph_bbox_xxx flags are now deprecated in favour of + FT_GLYPH_BBOX_XXX. + + - ft_module_xxx flags are now deprecated in favour of + FT_MODULE_XXX. + + - FT_ENCODING_MS_{SJIS,GB2312,BIG5,WANSUNG,JOHAB} are now + deprecated in favour of + FT_ENCODING_{SJIS,GB2312,GIB5,WANSONG,JOHAB} -- those encodings + are not specific to Microsoft. + + + III. MISCELLANEOUS + + - The autohinter has been further improved; for example, `m' + glyphs now retain its vertical symmetry. + + - Partial support of Mac fonts on non-Mac platforms. + + - `make refdoc' (after first `make') builds the HTML + documentation. You need Python for this. + + - The make build system should now work more reliably on DOS-like + platforms. + + - Support for EMX gcc and Watson C/C++ compilers on MS-DOS has + been added. + + - Better VMS build support. + + - Support for the pkg-config package by providing a `freetype.pc' + file. + + - New configure option --with-old-mac-fonts for Darwin. + + - Some source files have been renamed (mainly to fit into the 8.3 + naming scheme). + + +====================================================================== + +CHANGES BETWEEN 2.1.4 and 2.1.3 + + I. IMPORTANT BUG FIXES + + - Updated to newest libtool version, fixing build problems on + various platforms. + + - A fix in the Gzip stream reader: It couldn't read certain .gz + files properly due to a small typo. In certain cases, FreeType + could also loop endlessly when trying to load tiny gzipped + files. + + - The configure script now tries to use the system-wide zlib when + it finds one (instead of the copy found in src/gzip). And + `freetype-config' has been updated to return relevant flags in + this case when invoked with `--libs' (e.g. `-lzlib'). + + - Certain fonts couldn't be loaded by 2.1.3 because they lacked a + Unicode charmap (e.g. SYMBOL.TTF). FreeType erroneously + rejected them. + + - The CFF loader was modified to accept fonts which only contain a + subset of their reference charset. This prevented the correct + use of PDF-embedded fonts. + + - The logic to detect Unicode charmaps has been modified. This is + required to support fonts which include both 16-bit and 32-bit + charmaps (like very recent asian ones) using the new 10 and 12 + SFNT formats. + + - The TrueType loader now limits the depth of composite glyphs. + This is necessary to prevent broken fonts to break the engine by + blowing the stack with recursive glyph definitions. + + - The CMap cache is now capable of managing UCS-4 character codes + that are mapped through extended charmaps in recent + TrueType/OpenType fonts. + + - The cache sub-system now properly manages out-of-memory + conditions instead of blindly reporting them to the caller. + This means that it will try to empty the cache before restarting + its allocations to see if that can help. + + - The PFR driver didn't return the list of available embedded + bitmaps properly. + + - There was a nasty memory leak when using embedded bitmaps in + certain font formats. + + + II. IMPORTANT CHANGES + + - David Chester contributed some enhancements to the auto-hinter + that significantly increase the quality of its output. The + Postscript hinter was also improved in several ways. + + - The FT_RENDER_MODE_LIGHT render mode was implemented. + + - A new API function called `FT_Get_BDF_Property' has been added + to FT_BDF_H to retrieve BDF properties from BDF _and_ PCF font + files. THIS IS STILL EXPERIMENTAL, since it hasn't been + properly tested yet. + + - A Windows FNT specific API has been added, mostly to access font + headers. This is used by Wine. + + - TrueType tables without an `hmtx' table are now tolerated when + an incremental interface is used. This happens for certain + Type42 fonts passed from Ghostscript to FreeType. + + - The PFR font driver is now capable of returning the font family + and style names when they are available (instead of the sole + `FontID'). This is performed by parsing an *undocumented* + portion of the font file! + + + III. MISCELLANEOUS + + - The path stroker in FT_STROKER_H has entered beta stage. It now + works very well, but its interface might change a bit in the + future. More on this in later releases. + + - The documentation for FT_Size_Metrics didn't appear properly in + the API reference. + + - The file docs/VERSION.DLL has been updated to explain versioning + with FreeType (i.e., comparing release/libtool/so numbers, and + how to use them in autoconf scripts). + + - The installation documentation has been seriously revamped. + Everything is now in the `docs' directory. + + +====================================================================== + +CHANGES BETWEEN 2.1.3 and 2.1.2 + + I. IMPORTANT BUG FIXES + + - FT_Vector_Transform had been incorrectly modified in 2.1.2, + resulting in incorrect transformations being applied (for + example, rotations were processed in opposite angles). + + - The format 8 and 12 TrueType charmap enumeration routines have + been fixed (FT_Get_Next_Char returned invalid values). + + - The PFR font driver returned incorrect advance widths if the + outline and metrics resolution defined in the font file were + different. + + - FT_Glyph_To_Bitmap now returns successfully when called with an + FT_BitmapGlyph argument (it previously returned an error). + + - A bug in the Type 1 loader that prevented valid font bounding + boxes to be loaded from multiple master fonts. + + - The SFNT validation code has been rewritten. FreeType can now + load `broken' fonts that were usable on Windows, but not with + previous versions of the library. + + - The computation of bearings in the BDF driver has been fixed. + + - The Postscript hinter crashed when trying to hint certain glyphs + (more precisely, when trying to apply hints to an empty glyph + outline). + + - The TrueType glyph loader now supports composites in `Apple + format' (they differ slightly from Microsoft/OpenType ones in + the way transformation offsets are computed). + + - FreeType was very slow at opening certain asian CID/CFF fonts, + due to fixed increment in dynamic array re-allocations. This + has been changed to exponential behaviour to get acceptable + performance. + + + + II. IMPORTANT CHANGES + + - The PCF driver now supports gzip-compressed font files natively. + This means that you will be able to use all these bitmap fonts + that come with XFree86 with FreeType (and libXft/libXft2, by + extension). + + - The automatic and postscript hinters have both been updated. + This results in a relatively important increase of rendering + quality since many nasty defaults have been suppressed. Please + visit the web page: + + http://www.freetype.org/hinting/smooth-hinting.html + + for additional details on this topic. + + - The `load_flags' parameter of `FT_Load_Glyph' is now an FT_Int32 + (instead of just being an FT_Int). This breaks source and + binary compatibility for 16bit systems only, while retaining + both of them for 32 and 64 bit ones. + + Some new flags have been added consequently: + + FT_LOAD_NO_AUTOHINT :: Disable the use of the auto-hinter + (but not native format hinters). + + FT_LOAD_TARGET_NORMAL :: Hint and render for normal + anti-aliased displays. + + FT_LOAD_TARGET_MONO :: Hint and render for 1-bit displays. + + FT_LOAD_TARGET_LCD :: Hint and render for horizontal RGB or + BGR sub-pixel displays (like LCD + screens). THIS IS STILL + EXPERIMENTAL! + + FT_LOAD_TARGET_LCD_V :: Same as FT_LOAD_TARGET_LCD, for + vertical sub-pixel displays (like + rotated LCD screens). THIS IS STILL + EXPERIMENTAL! + + FT_LOAD_MONOCHROME is still supported, but only affects + rendering, not the hinting. + + Note that the `ftview' demo program available in the `ft2demos' + package has been updated to support LCD-optimized display on + non-paletted displays (under Win32 and X11). + + - The PFR driver now supports embedded bitmaps (all formats + supported), and returns correct kerning metrics for all glyphs. + + - The TrueType charmap loader now supports certain `broken' fonts + that load under Windows without problems. + + - The cache API has been slightly modified (it's still a beta!): + + - The type FTC_ImageDesc has been removed; it is now replaced + by FTC_ImageTypeRec. Note that one of its fields is a + `load_flag' parameter for FT_Load_Glyph. + + - The field `num_grays' of FT_SBitRec has been changed to + `max_grays' in order to fit within a single byte. Its + maximum value is thus 255 (instead of 256 as previously). + + + III. MISCELLANEOUS + + - Added support for the DESTDIR variable during `make install'. + This simplifies packaging of FreeType. + + - Included modified copies of the ZLib sources in `src/gzip' in + order to support gzip-compressed PCF fonts. We do not use the + system-provided zlib for now, though this is a probable + enhancement for future releases. + + - The DocMaker tool used to generate the on-line API reference has + been completely rewritten. It is now located in + `src/tools/docmaker/docmaker.py'. Features: + + - better cross-referenced output + - more polished output + - uses Python regular expressions (though it didn't speed the + program) + - much more modular structure, which allows for different + `backends' in order to generate HTML, XML, or whatever + format. + + One can regenerate the API reference by calling: + + python src/tools/docmaker/docmaker.py \ + --prefix=ft2 \ + --title=FreeType-2.1.3 \ + --output= + include/freetype/*.h \ + include/freetype/config/*.h \ + include/freetype/cache/*.h + + - A new, experimental, support for incremental font loading (i.e., + loading of fonts where the glyphs are not in the font file + itself, but provided by an external component, like a Postscript + interpreter) has been added by Graham Asher. This is still work + in progress, however. + + - A new, EXPERIMENTAL, path stroker has been added. It doesn't + suffer from severe rounding errors and treat bezier arcs + directly. Still work in progress (i.e. not part of the official + API). See the file for some of the + details. + + - The massive re-formatting of sources and internal re-design is + still under-way. Many internal functions, constants, and types + have been renamed. + + +====================================================================== + +CHANGES BETWEEN 2.1.2 and 2.1.1 + + I. IMPORTANT BUG FIXES + + - Many font drivers didn't select a Unicode charmap by default + when a new face was opened (with the FT_CONFIG_OPTION_USE_CMAPS + options enabled), causing many applications to not be able to + display text correctly with the 2.1.x releases. + + - The PFR driver had a bug in its composite loading code that + produces incorrectly placed accents with many fonts. + + - The Type42 driver crashed sometimes due to a nasty bug. + + - The Type 1 custom encoding charmap didn't handle the case where + the first glyph index wasn't 0. + + - A serious typo in the TrueType composite loader produced + incorrectly placed glyphs in fonts like `Wingdings' and a few + others. + + + II. MISCELLANEOUS + + - The Win32 Visual C++ project file has been updated to include + the PFR driver as well. + + - `freetype.m4' is now installed by default by `make install' on + Unix systems. + + - The function FT_Get_PS_Font_Info now works with CID and Type42 + fonts as well. + + +====================================================================== + +CHANGES BETWEEN 2.1.1 and 2.1.0 + + I. IMPORTANT BUG FIXES + + - The `version_info' returned by `freetype-config' in 2.1.0 + returned an invalid value. It now returns 9:1:3 (2.0.9 returned + 9:0:3). + + - Version 2.1.0 couldn't be linked against applications on Win32 + and Amiga systems due to a new debug function that wasn't + properly propagated to the system-specific directory in + `builds'. + + - Various MacOS and Mac OS X specific fixes. + + - Fixed a bug in the TrueType charmap validation routines that + made version 2.1.0 too restrictive -- many popular fonts have + been rejected. + + - There was still a very small difference between the monochrome + glyph bitmaps produced by FreeType 1.x and FreeType 2.x with the + bytecode interpreter enabled. This was caused by an invalid + flag setting in the TrueType glyph loader, making the rasterizer + change its drop-out control mode. Now the results should + _really_ be completely identical. + + - The TrueType name table loader has been improved to support many + popular though buggy Asian fonts. It now ignores empty name + entries, invalid pointer offsets and a few other incorrect + subtleties. Moreover, name strings are now loaded on demand, + which reduces the memory load of many faces (e.g. the ARIAL.TTF + font file contains a 10kByte name table with 70 names). + + - Fixed a bug in the Postscript hinter that prevented family blues + substitution to happen correctly. + + + II. NEW FEATURES + + - Three new font drivers in this release: + + * A BDF font driver, contributed by Franco Zappa Nardelli, + heavily modified by Werner Lemberg. It also supports + anti-aliased bitmaps (using a slightly extended BDF format). + + * A Type42 font driver, contributed by Roberto Alameda. It is + still experimental but seems to work relatively well. + + * A PFR font driver, contributed by David Turner himself. It + doesn't support PFR hinting -- note that BitStream has at + least two patents on this format! + + + III. MISCELLANEOUS + + - The cache sub-system has been optimized in important ways. + Cache hits are now significantly faster. For example, using the + CMap cache is about twice faster than calling FT_Get_Char_Index + on most platforms. Similarly, using an SBit cache is about five + times faster than loading the bitmaps from a bitmap file, and + 300 to 500 times faster than generating them from a scalable + format. + + Note that you should recompile your sources if you designed a + custom cache class for the FT2 Cache subsystem, since the + changes performed are source, but not binary, compatible. + + +====================================================================== + +CHANGES BETWEEN 2.1.0 and 2.0.9 + + I. IMPORTANT BUG FIXES + + - The TrueType bytecode interpreter has been fixed to produce + _exactly_ the same output as FreeType 1.x. Previous differences + were due to slightly distinct fixed-point computation routines + used to perform dot products and vector length measurements. + + It seems that native TrueType hinting is _extremely_ sensitive + to rounding errors. The required vector computation routines + have been optimized and placed within the `ttinterp.c' file. + + - Fixed the parsing of accelerator tables in the PCF font driver. + + - Fixed the Type1 glyph loader routine used to compute the font's + maximum advance width. + + + II. NEW FEATURES + + - The `configure' script used on Unix systems has been modified to + check that GNU Make is being used to build the library. + Otherwise, it will display a message proposing to use the + GNUMAKE environment variable to name it. + + The Unix-specific file README.UNX has been modified accordingly. + + + III. MISCELLANEOUS + + - The FreeType License in `docs/FTL.TXT' has been updated to + include a proposed preferred disclaimer. If you are using + FreeType in your products, you are encouraged (but not mandated) + to use the following text in your documentation: + + """ + Portions of this software are copyright © 1996-2002 The + FreeType Project (www.freetype.org). All rights reserved. + """ + + - The default size of the render pool has been reduced to 16kByte. + This shouldn't result in any noticeable performance penalty, + unless you are using the engine as-is to render very large and + complex glyphs. + + - The FreeType 2 redesign has begun. More information can be + found at this URL: + + http://www.freetype.org/freetype2/redesign.html + + The following internal changes have been performed within the + sources of this release: + + - Many internal types have been renamed to increase + consistency. The following should be true, except for + public types: + + * All structure types have a name ending in `Rec' (short + for `record'). + + * A pointer-to-structure type has the same name as the + structure, _without_ the `Rec' suffix. + + Example: + + typedef struct FooRec_ + { + ... + + } FooRec, *Foo; + + - Many internal macros have been renamed to increase + consistency. The following should be true: + + * All macros have a name beginning with `FT_'. This + required a few changes like + + ALLOC => FT_ALLOC + FREE => FT_FREE + REALLOC => FT_REALLOC + + * All macros are completely UPPERCASE. This required a + few changes like: + + READ_Short => FT_READ_SHORT + NEXT_Short => FT_NEXT_SHORT + GET_ULongLE => FT_GET_ULONG_LE + MEM_Set => FT_MEM_SET + MEM_Copy => FT_MEM_COPY + etc. + + * Whenever possible, all macro names follow the + FT__ pattern. For example + + ACCESS_Frame => FT_FRAME_ENTER + FORGET_Frame => FT_FRAME_EXIT + EXTRACT_Frame => FT_FRAME_EXTRACT + RELEASE_Frame => FT_FRAME_RELEASE + + FILE_Pos => FT_STREAM_POS + FILE_Seek => FT_STREAM_SEEK + FILE_Read => FT_STREAM_READ + FILE_ReadAt => FT_STREAM_READ_AT + READ_Fields => FT_STREAM_READ_FIELDS + + - Many internal functions have been renamed to follow the + FT__ pattern. For example: + + FT_Seek_Stream => FT_Stream_Seek + FT_Read_Stream_At => FT_Stream_ReadAt + FT_Done_Stream => FT_Stream_Close + FT_New_Stream => FT_Stream_Open + FT_New_Memory_Stream => FT_Stream_OpenMemory + FT_Extract_Frame => FT_Stream_ExtractFrame + + Note that method names do not contain `_'. + + - The FT_ALLOC_ARRAY and FT_REALLOC_ARRAY have been replaced + with FT_NEW_ARRAY and FT_RENEW_ARRAY which do not take a + type as the fourth argument. Instead, the array element + type size is computed automatically from the type of the + target pointer used. + + - A new object class, FT_CMap, has been introduced. These + internal objects are used to model character maps. This + eases the support of additional charmap types within the + engine. + + - A new configuration file named `ftstdlib.h' has been added + to `include/freetype/config'. It is used to define aliases + for _every_ routine of the ISO C library that the font + engine uses. Each aliases has a `ft_' prefix + (e.g. `ft_strlen' is an alias for `strlen'). + + This is used to ease the porting of FreeType 2 to exotic + runtime environments where the ISO C Library isn't available + (e.g. XFree86 extension modules). + + More details are available in the `ChangeLog' file. + + +====================================================================== + +CHANGES BETWEEN 2.0.9 and 2.0.8 + + I. IMPORTANT BUG FIXES + + - Certain fonts like `foxjump.ttf' contain broken name tables with + invalid entries and wild offsets. This caused FreeType to crash + when trying to load them. + + The SFNT `name' table loader has been fixed to be able to + support these strange fonts. + + Moreover, the code in charge of processing this table has been + changed to always favour Windows-formatted entries over other + ones. Hence, a font that works on Windows but not on the Mac + will load cleanly in FreeType and report accurate values for + Family & PostScript names. + + - The CID font driver has been fixed. It unfortunately returned a + Postscript Font name with a leading slash, as in + `/MunhwaGothic-Regular'. + + - FreeType 2 should now compile fine on AIX 4.3.3 as a shared + library. + + - A bug in the Postscript hinter has been found and fixed, + removing un-even stem widths at small pixel sizes (like 14-17). + + This improves the quality of a certain number of Postscript + fonts. + + + II. NEW FEATURES + + - A new function named `FT_Library_Version' has been added to + return the current library's major, minor, and patch version + numbers. This is important since the macros FREETYPE_MAJOR, + FREETYPE_MINOR, and FREETYPE_PATCH cannot be used when the + library is dynamically linked by a program. + + - Two new APIs have been added: `FT_Get_First_Char' and + `FT_Get_Next_Char'. + + Together, these can be used to iterate efficiently over the + currently selected charmap of a given face. Read the API + reference for more details. + + + III. MISCELLANEOUS + + - The FreeType sources are under heavy internal re-factoring. As + a consequence, we have created a branch named `STABLE' on the + CVS to hold all future releases/fixes in the 2.0.x family. + + The HEAD branch now contains the re-factored sources and + shouldn't be used for testing or packaging new releases. In + case you would like to access the 2.0.9 sources from our CVS + repository, use the tag `VER-2-0-9'. + + +====================================================================== + +CHANGES BETWEEN 2.0.8 and 2.0.7 + + I. IMPORTANT BUG FIXES + + - There was a small but nasty bug in `freetype-config.in' which + caused the `freetype-config' script to fail on Unix. + + This didn't prevent the installation of the library or even its + execution, but caused problems when trying to compile many Unix + packages that depend on it. + + - Some TrueType or OpenType fonts embedded in PDF documents do not + have a 'cmap', 'post' and 'name' as is required by the + specification. FreeType no longer refuses to load such fonts. + + - Various fixes to the PCF font driver. + + +====================================================================== + +CHANGES BETWEEN 2.0.7 and 2.0.6 + + I. IMPORTANT BUG FIXES + + - Fixed two bugs in the Type 1 font driver. The first one + resulted in a memory leak in subtle cases. The other one caused + FreeType to crash when trying to load `.gsf' files (Ghostscript + so-called Postscript fonts). + + (This made _many_ KDE applications crash on certain systems. + FreeType _is_ becoming a critical system component on Linux :-) + + - Fixed a memory leak in the CFF font driver. + + - Fixed a memory leak in the PCF font driver. + + - Fixed the Visual C++ project file + `builds/win32/visualc/freetype.dsp' since it didn't include the + Postscript hinter component, causing errors at build time. + + - Fixed a small rendering bug in the anti-aliased renderer that + only occurred when trying to draw thin (less than 1 pixel) + strokes. + + - Fixed `builds/unix/freetype2.a4' which is used to generate a + valid `freetype2.m4' for use with autoconf. + + - Fixed the OpenVMS Makefiles. + + + II. MISCELLANEOUS + + - Added `configure' and `install' scripts to the top-level + directory. A GNU-style installation is thus now easily possible + with + + ./configure + make + make install + + +====================================================================== + +CHANGES BETWEEN 2.0.6 and 2.0.5 + + I. IMPORTANT BUG FIXES + + - It wasn't possible to load embedded bitmaps when the auto-hinter + was used. This is now fixed. + + - The TrueType font driver didn't load some composites properly + (the sub-glyphs were slightly shifted, and this was only + noticeable when using monochrome rendering). + + - Various fixes to the auto-hinter. They merely improve the + output of sans-serif fonts. Note that there are still problems + with serifed fonts and composites (accented characters). + + - All scalable font drivers erroneously returned un-fitted glyph + advances when hinting was requested. This created problems for + a number of layout applications. This is a very old bug that + got undetected mainly because most test/demo program perform + rounding explicitly or implicitly (through the cache). + + - `FT_Glyph_To_Bitmap' did erroneously modify the source glyph in + certain cases. + + - `glnames.py' still contained a bug that made FreeType return + invalid names for certain glyphs. + + - The library crashed when loading certain Type 1 fonts like + `sadn.pfb' (`Stalingrad Normal'), which appear to contain + pathetic font info dictionaries. + + - The TrueType glyph loader is now much more paranoid and checks + everything when loading a given glyph image. This was necessary + to avoid problems (crashes and/or memory overwrites) with broken + fonts that came from a really buggy automatic font converter. + + + II. IMPORTANT UPDATES AND NEW FEATURES + + - Important updates to the Mac-specific parts of the library. + + - The caching sub-system has been completely re-designed, and its + API has evolved (the old one is still supported for backward + compatibility). + + The documentation for it is not yet completed, sorry. For now, + you are encouraged to continue using the old API. However, the + ftview demo program in the ft2demos package has already been + updated to use the new caching functions. + + - A new charmap cache is provided too. See `FTC_CMapCache'. This + is useful to perform character code -> glyph index translations + quickly, without the need for an opened FT_Face. + + - A NEW POSTSCRIPT HINTER module has been added to support native + hints in the following formats: PostScript Type 1, PostScript + CID, and CFF/CEF. + + Please test! Note that the auto-hinter produces better results + for a number of badly-hinted fonts (mostly auto-generated ones) + though. + + - A memory debugger is now part of the standard FreeType sources. + To enable it, define FT_DEBUG_MEMORY in + , and recompile the library. + + Additionally, define the _environment_ variable FT_DEBUG_MEMORY + and run any program using FreeType. When the library is exited, + a summary of memory footprints and possible leaks will be + displayed. + + This works transparently with _any_ program that uses FreeType. + However, you will need a lot of memory to use this (allocated + blocks are never released to the heap to detect double deletes + easily). + + + III. MISCELLANEOUS + + - We are aware of subtle differences between the output of + FreeType versions 1 and 2 when it comes to monochrome + TrueType-hinted glyphs. These are most probably due to small + differences in the monochrome rasterizers and will be worked out + in an upcoming release. + + - We have decided to fork the sources in a `stable' branch, and an + `unstable' one, since FreeType is becoming a critical component + of many Unix systems. + + The next bug-fix releases of the library will be named 2.0.7, + 2.0.8, etc., while the `2.1' branch will contain a version of + the sources where we will start major reworking of the library's + internals, in order to produce FreeType 2.2.0 (or even 3.0) in a + more distant future. + + We also hope that this scheme will allow much more frequent + releases than in the past. + + +====================================================================== + +CHANGES BETWEEN 2.0.5 and 2.0.4 + + NOTE THAT 2.0.5 DOES NOT CONTAIN THE POSTSCRIPT HINTER. THIS MODULE + WILL BE PART OF THE NEXT RELEASE (EITHER 2.0.6 or 2.1) + + - Fixed a bug that made certain glyphs, like `Cacute', `cacute' and + `lslash' unavailable from Unicode charmaps of Postscript fonts. + This prevented the correct display of Polish text, for example. + + - The kerning table of Type 1 fonts was loaded by FreeType, when its + AFM file was attached to its face, but the + FT_FACE_FLAG_HAS_KERNING bit flags was not set correctly, + preventing FT_Get_Kerning to return meaningful values. + + - Improved SFNT (TrueType & OpenType) charmap support. Slightly + better performance, as well as support for the new formats defined + by the OpenType 1.3 specification (8, 10, and 12) + + - Fixed a serious typo in `src/base/ftcalc.c' which caused invalid + computations in certain rare cases, producing ugly artefacts. + + - The size of the EM square is computed with a more accurate + algorithm for Postscript fonts. The old one caused slight errors + with embedded fonts found in PDF documents. + + - Fixed a bug in the cache manager that prevented normal LRU + behaviour within the cache manager, causing unnecessary reloads + (for FT_Face and FT_Size objects only). + + - Added a new function named `FT_Get_Name_Index' to retrieve the + glyph index of a given glyph name, when found in a face. + + - Added a new function named `FT_Get_Postscript_Name' to retrieve + the `unique' Postscript font name of a given face. + + - Added a new public header size named FT_SIZES_H (or + ) providing new FT_Size-management functions: + FT_New_Size, FT_Activate_Size, FT_Done_Size. + + - Fixed a reallocation bug that generated a dangling pointer (and + possibly memory leaks) with Postscript fonts (in + src/psaux/psobjs.c). + + - Many fixes for 16-bit correctness. + + - Removed many pedantic compiler warnings from the sources. + + - Added an Amiga build directory in `builds/amiga'. + + +====================================================================== + +CHANGES BETWEEN 2.0.4 and 2.0.3 + + - Fixed a rather annoying bug that was introduced in 2.0.3. Namely, + the font transformation set through FT_Set_Transform was applied + twice to auto-hinted glyphs, resulting in incorrectly rotated text + output. + + - Fixed _many_ compiler warnings. FT2 should now compile cleanly + with Visual C++'s most pedantic warning level (/W4). It already + compiled fine with GCC and a few other compilers. + + - Fixed a bug that prevented the linear advance width of composite + TrueType glyphs to be correctly returned. + + - Fixed the Visual C++ project files located in + `builds/win32/visualc' (previous versions used older names of the + library). + + - Many 32-bit constants have an `L' appended to their value, in + order to improve the 16-bitness of the code. Someone is actually + trying to use FT2 on an Atari ST machine! + + - Updated the `builds/detect.mk' file in order to automatically + build FT2 on AIX systems. AIX uses `/usr/sbin/init' instead of + `/sbin/init' and wasn't previously detected as a Unix platform by + the FreeType build system. + + - Updated the Unix-specific portions of the build system (new + libtool version, etc.). + + - The SFNT kerning loader now ensures that the table is sorted + (since some problem fonts do not meet this requirement). + + +======================================================================= + +CHANGES BETWEEN 2.0.3 and 2.0.2 + + I. CHANGES TO THE MODULES / FONT DRIVERS + + - THE AUTO-HINTER HAS BEEN SLIGHTLY IMPROVED, in order to fix + several annoying artefacts, mainly: + + - Blue zone alignment of horizontal stems wasn't performed + correctly, resulting in artefacts like the `d' being placed + one pixel below the `b' in some fonts like Time New Roman. + + - Overshoot thresholding wasn't performed correctly, creating + unpleasant artefacts at large character pixel sizes. + + - Composite glyph loading has been simplified. This gets rid + of various artefacts where the components of a composite + glyphs were not correctly spaced. + + These are the last changes to the current auto-hinting module. + A new hinting sub-system is currently in the work in order to + support native hints in Type 1 / CFF / OpenType fonts, as well + as globally improve rendering. + + - The PCF driver has been fixed. It reported invalid glyph + dimensions for the fonts available on Solaris. + + - The Type 1, CID and CFF drivers have been modified to fix the + computation of the EM size. + + - The Type 1 driver has been fixed to avoid a dangerous bug that + crashed the library with non-conforming fonts (i.e. ones that do + not place the .notdef glyph at position 0). + + - The TrueType driver had a rather subtle bug (dangling pointer + when loading composite glyphs) that could crash the library in + rare occasions! + + + II. HIGH-LEVEL API CHANGES + + - The error code enumeration values have been changed. An error + value is decomposed in a generic error code, and a module + number. see for details. + + - A new public header file has been introduced, named + FT_TRIGONOMETRY_H (include/freetype/fttrig.h), providing + trigonometric functions to compute sines, cosines, arctangents, + etc. with 16.16 fixed precision. The implementation is based on + the CORDIC algorithm and is very fast while being sufficiently + accurate. + + + III. INTERNALS + + - Added BeOS-specific files in the old build sub-system. Note + that no changes were required to compile the library with Jam. + + - The configuration is now capable of automatically detecting + 64-bit integers on a set of predefined compilers (GCC, Visual + C++, Borland C++) and will use them by default. This provides a + small performance boost. + + - A small memory leak that happened when opening 0-sized files + (duh!) have been fixed. + + - Fixed bezier stack depth bug in the routines provided by the + FT_BBOX_H header file. Also fixed similar bugs in the + rasterizers. + + - The outline bounding box code has been rewritten to use direct + computations, instead of bezier sub-division, to compute the + exact bounding box of glyphs. This is slightly slower but more + accurate. + + - The build system has been improved and fixed, mainly to support + `make' on Windows 2000 correctly, avoid problems with `make + distclean' on non Unix systems, etc. + + - Hexadecimal constants have been suffixed with `U' to avoid + problems with certain compilers on 64-bit platforms. + + - A new directory named `src/tools' has been created. It contains + Python scripts and simple unit test programs used to develop the + library. + + - The DocMaker tool has been moved from `docs' to `src/tools' and + has been updated with the following: + + - Now accepts the `--title=XXXX' or `-t XXXX' option from the + command line to set the project's name in the generated API + reference. + + - Now accepts the `--output=DIR' or `-o DIR' option from the + command line to set the output directory for all generated + HTML files. + + - Now accepts the `--prefix=XXXX' or `-p XXX' option from the + command line to set the file prefix to use for all + generated HTML files. + + - Now generates the current time/data on each generated page + in order to distinguish between versions. + + DocMaker can be used with other projects now, not only FT2 + (e.g. MLib, FTLayout, etc.). + + +====================================================================== + +CHANGES BETWEEN 2.0.2 and 2.0.1 + + I. CHANGES TO THE MODULES / FONT DRIVERS + + - THE TRUETYPE BYTECODE INTERPRETER IS NOW TURNED OFF, in order to + avoid legal problems with the Apple patents. It seems that we + mistakenly turned this option on in previous releases of the + build. + + Note that if you want to use the bytecode interpreter in order + to get high-quality TrueType rendering, you will need to toggle + by hand the definition of the + TT_CONFIG_OPTION_BYTECODE_INTERPRETER macro in the file + `include/freetype/config/ftoption.h'. + + - The CFF driver has been improved by Tom Kacvinsky and Sander van + der Wal: + + * Support for `seac' emulation. + * Support for `dotsection'. + * Support for retrieving glyph names through + `FT_Get_Glyph_Name'. + + The first two items are necessary to correctly a large number of + Type 1 fonts converted to the CFF formats by Adobe Acrobat. + + - The Type 1 driver was also improved by Tom & others: + + * Better EM size computation. + * Better support for synthetic (transformed) fonts. + * The Type 1 driver returns the charstrings corresponding to + each glyph in the `glyph->control_data' field after a call to + `FT_Load_Glyph' (thanks Ha Shao). + + - Various other bugfixes, including the following: + + * Fixed a nasty memory leak in the Type 1 driver. + * The autohinter and the pcf driver used static writable data + when they shouldn't. + * Many casts were added to make the code more 64-bits safe. It + also now compiles on Windows XP 64-bits without warnings. + * Some incorrect writable statics were removed in the `autohint' + and `pcf' drivers. FreeType 2 now compiles on Epoc again. + + + II. CHANGES TO THE HIGH-LEVEL API + + - The library header files inclusion scheme has been changed. The + old scheme looked like: + + #include + #include + #include + #include + + Now you should use: + + #include + #include FT_FREETYPE_H + #include FT_GLYPH_H + #include FT_CACHE_H + #include FT_CACHE_IMAGE_H + + NOTE THAT THE OLD INCLUSION SCHEME WILL STILL WORK WITH THIS + RELEASE. HOWEVER, WE DO NOT GUARANTEE THAT THIS WILL STILL BE + TRUE IN THE NEXT ONE (A.K.A. FREETYPE 2.1). + + The file is used to define the header filename + macros. The complete and commented list of macros is available + in the API reference under the section name `Header File Macros' + in Chapter I. + + For more information, see section I of the following document: + + http://www.freetype.org/ + freetype2/docs/tutorial/step1.html + + or + + http://freetype.sourceforge.net/ + freetype2/docs/tutorial/step1.html + + - Many, many comments have been added to the public source file in + order to automatically generate the API Reference through the + `docmaker.py' Python script. + + The latter has been updated to support the grouping of sections + in chapters and better index sort. See: + + http://www.freetype.org/freetype2/docs/reference/ft2-toc.html + + + III. CHANGES TO THE BUILD PROCESS + + - If you are not building FreeType 2 with its own build system + (but with your own Makefiles or project files), you will need to + be aware that the build process has changed a little bit. + + You don't need to put the `src' directory in the include path + when compiling any FT2 component. Instead, simply put the + component's directory in the current include path. + + So, if you were doing something like: + + cc -c -Iinclude -Isrc src/base/ftbase.c + + change the line to: + + cc -c -Iinclude -Isrc/base src/base/ftbase.c + + If you were doing something like: + + cd src/base + cc -c -I../../include -I.. ftbase.c + + change it to: + + cd src/base + cc -c -I../../include ftbase.c + + +====================================================================== + +CHANGES BETWEEN 2.0.1 and 2.0 + + 2.0.1 introduces a few changes: + + - Fixed many bugs related to the support of CFF / OpenType fonts. + These formats are now much better supported though there is + still work planned to deal with charset tables and PDF-embedded + CFF files that use the old `seac' command. + + - The library could not be compiled in debug mode with a very + small number of C compilers whose pre-processors didn't + implement the `##' directive correctly (i.e. per se the ANSI C + specification!) An elegant fix was found. + + - Added support for the free Borland command-line C++ Builder + compiler. Use `make setup bcc32'. Also fixed a few source + lines that generated new warnings with BCC32. + + - Fixed a bug in FT_Outline_Get_BBox when computing the extrema of + a conic Bezier arc. + + - Updated the INSTALL file to add IDE compilation. + + - Other minor bug fixes, from invalid Type 1 style flags to + correct support of synthetic (obliqued) fonts in the + auto-hinter, better support for embedded bitmaps in a SFNT font. + + - Fixed some problems with `freetype-config'. + + Finally, the `standard' scheme for including FreeType headers is now + gradually changing, but this will be explained in a later release + (probably 2.0.2). + + And very special thanks to Tom Kacvinsky and YAMANO-UCHI Hidetoshi + for their contributions! + + +====================================================================== + +CHANGES BETWEEN beta8 and 2.0 + + - Changed the default installation path for public headers from + `include/freetype' to `include/freetype2'. + + Also added a new `freetype-config' that is automatically generated + and installed on Unix and Cygwin systems. The script itself is + used to retrieve the current install path, C compilation flags as + well as linker flags. + + - Fixed several small bugs: + + * Incorrect max advance width for fixed-pitch Type 1 fonts. + * Incorrect glyph names for certain TrueType fonts. + * The glyph advance was not copied when FT_Glyph_To_Bitmap was + called. + * The linearHoriAdvance and linearVertAdvance fields were not + correctly returned for glyphs processed by the auto-hinter. + * `type1z' renamed back to `type1'; the old `type1' module has + been removed. + + - Revamped the build system to make it a lot more generic. This + will allow us to re-use nearly un-modified in lots of other + projects (including FreeType Layout). + + - Changed `cid' to use `psaux' too. + + - Added the cache sub-system. See as well as + the sources in `src/cache'. Note that it compiles but is still + untested for now. + + - Updated `docs/docmaker.py', a draft API reference is available at + http://www.freetype.org/ft2api.html. + + - Changed `type1' to use `psaux'. + + - Created a new module named `psaux' to hold the Type 1 & Type 2 + parsing routines. It should be used by `type1', `cid', and `cff' + in the future. + + - Fixed an important bug in `FT_Glyph_Get_CBox'. + + - Fixed some compiler warnings that happened since the TrueType + bytecode decoder was deactivated by default. + + - Fixed two memory leaks: + + * The memory manager (16 bytes) isn't released in + FT_Done_FreeType! + * Using custom input streams, the copy of the original stream was + never released. + + - Fixed the auto-hinter by performing automatic computation of the + `filling direction' of each glyph. This is done through a simple + and fast approximation, and seems to work (problems spotted by + Werner though). The Arphic fonts are a lot nicer though there are + still a lot of things to do to handle Asian fonts correctly. + + +====================================================================== + +BETA-8 (RELEASE CANDIDATE) CHANGES + + - Deactivated the TrueType bytecode interpreter by default. + + - Deactivated the `src/type1' font driver. Now `src/type1z' is used + by default. + + - Updates to the build system. We now compile the library correctly + under Unix system through `configure' which is automatically + called on the first `make' invocation. + + - Added the auto-hinting module! Fixing some bugs here and there. + + - Found some bugs in the composite loader (seac) of the Type1-based + font drivers. + + - Renamed the directory `freetype2/config' to `freetype2/builds' and + updated all relevant files. + + - Found a memory leak in the `type1' driver. + + - Incorporated Tom's patches to support flex operators correctly in + OpenType/CFF fonts. Now all I need is to support pure CFF and CEF + fonts to be done with this driver :-) + + - Added the Windows FNT/FON driver in `src/winfonts'. For now, it + always `simulates' a Unicode charmap, so it shouldn't be + considered completed right now. + + It is there to be more a proof of concept than anything else + anyway. The driver is a single C source file, that compiles to 3 + Kb of code. + + I'm still working on the PCF/BDF drivers, but I'm too lazy to + finish them now. + + - CHANGES TO THE HIGH-LEVEL API + + * FT_Get_Kerning has a new parameter that allows you to select the + coordinates of the kerning vector (font units, scaled, scaled + + grid-fitted). + * The outline functions are now in and not + part of anymore. + * now contains declarations for + FT_New_Library, FT_Done_Library, FT_Add_Default_Modules. + * The so-called convenience functions have moved from `ftoutln.c' + to `ftglyph.c', and are thus available with this optional + component of the library. They are declared in + now. + * Anti-aliased rendering is now the default for FT_Render_Glyph + (i.e. corresponds to render_mode == 0 == ft_render_mode_normal). + To generate a monochrome bitmap, use ft_render_mode_mono, or the + FT_LOAD_MONOCHROME flag in FT_Load_Glyph/FT_Load_Char. + FT_LOAD_ANTI_ALIAS is still defined, but values to 0. + * now include , + solving a few headaches :-) + * The type FT_GlyphSlotRec has now a `library' field. + + - CHANGES TO THE `ftglyph.h' API + + This API has been severely modified in order to make it simpler, + clearer, and more efficient. It certainly now looks like a real + `glyph factory' object, and allows client applications to manage + (i.e. transform, bbox and render) glyph images without ever + knowing their original format. + + - Added support for CID-keyed fonts to the CFF driver. Maybe + support for pure CFF + CEF fonts should come in? + + - Cleaned up source code in order to avoid two functions with the + same name. Also changed the names of the files in `type1z' from + `t1XXXX' to `z1XXXX' in order to avoid any conflicts. + + `make multi' now works well :-) + + Also removed the use of `cidafm' for now, even if the source files + are still there. This functionality will certainly go into a + specific module. + + - ADDED SUPPORT FOR THE AUTO-HINTER + + It works :-) I have a demo program which simply is a copy of + `ftview' that does a `FT_Add_Module(library, + &autohinter_module_class)' after library initialization, and Type + 1 & OpenType/CFF fonts are now hinted. + + CID fonts are not hinted, as they include no charmap and the + auto-hinter doesn't include `generic' global metrics computations + yet. + + Now, I need to release this thing to the FreeType 2 source. + + - CHANGES TO THE RENDERER MODULES + + The monochrome and smooth renderers are now in two distinct + directories, namely `src/raster1' and `src/smooth'. Note that the + old `src/renderer' is now gone. + + I ditched the 5-gray-levels renderers. Basically, it involved a + simple #define toggle in 'src/raster1/ftraster.c'. + + FT_Render_Glyph, FT_Outline_Render & FT_Outline_Get_Bitmap now + select the best renderer available, depending on render mode. If + the current renderer for a given glyph image format isn't capable + of supporting the render mode, another one will be found in the + library's list. This means that client applications do not need + to switch or set the renderers themselves (as in the latest + change), they'll get what they want automatically. At last. + + Changed the demo programs accordingly. + + - MAJOR INTERNAL REDESIGN: + + A lot of internal modifications have been performed lately on the + source in order to provide the following enhancements: + + * More generic module support: + + The FT_Module type is now defined to represent a handle to a + given module. The file contains the + FT_Module_Class definition, as well as the module-loading public + API. + + The FT_Driver type is still defined, and still represents a + pointer to a font driver. Note that FT_Add_Driver is replaced + by FT_Add_Module, FT_Get_Driver by FT_Get_Module, etc. + + * Support for generic glyph image types: + + The FT_Renderer type is a pointer to a module used to perform + various operations on glyph image. + + Each renderer is capable of handling images in a single format + (e.g. ft_glyph_format_outline). Its functions are used to: + + - transform an glyph image + - render a glyph image into a bitmap + - return the control box (dimensions) of a given glyph image + + The scan converters `ftraster.c' and `ftgrays.c' have been moved + to the new directory `src/renderer', and are used to provide two + default renderer modules. + + One corresponds to the `standard' scan-converter, the other to + the `smooth' one. + + he current renderer can be set through the new function + FT_Set_Renderer. + + The old raster-related function FT_Set_Raster, FT_Get_Raster and + FT_Set_Raster_Mode have now disappeared, in favor of the new: + + FT_Get_Renderer + FT_Set_Renderer + + See the file for more details. + + These changes were necessary to properly support different + scalable formats in the future, like bi-color glyphs, etc. + + * Glyph loader object: + + A new internal object, called a 'glyph loader' has been + introduced in the base layer. It is used by all scalable format + font drivers to load glyphs and composites. + + This object has been created to reduce the code size of each + driver, as each one of them basically re-implemented its + functionality. + + See and the FT_GlyphLoader type for + more information. + + * FT_GlyphSlot has new fields: + + In order to support extended features (see below), the + FT_GlyphSlot structure has a few new fields: + + linearHoriAdvance: + + This field gives the linearly scaled (i.e. scaled but + unhinted) advance width for the glyph, expressed as a 16.16 + fixed pixel value. This is useful to perform WYSIWYG text. + + linearVertAdvance: + This field gives the linearly scaled advance height for the + glyph (relevant in vertical glyph layouts only). This is + useful to perform WYSIWYG text. + + Note that the two above field replace the removed `metrics2' + field in the glyph slot. + + advance: + This field is a vector that gives the transformed advance for + the glyph. By default, it corresponds to the advance width, + unless FT_LOAD_VERTICAL_LAYOUT was specified when calling + FT_Load_Glyph or FT_Load_Char. + + bitmap_left: + This field gives the distance in integer pixels from the + current pen position to the left-most pixel of a glyph image + IF IT IS A BITMAP. It is only valid when the `format' field + is set to `ft_glyph_format_bitmap', for example, after calling + the new function FT_Render_Glyph. + + bitmap_top: + This field gives the distance in integer pixels from the + current pen position (located on the baseline) to the top-most + pixel of the glyph image IF IT IS A BITMAP. Positive values + correspond to upwards Y. + + loader: + This is a new private field for the glyph slot. Client + applications should not touch it. + + + * Support for transforms and direct rendering in FT_Load_Glyph: + + Most of the functionality found in has been + moved to the core library. Hence, the following: + + - A transform can be specified for a face through + FT_Set_Transform. this transform is applied by FT_Load_Glyph + to scalable glyph images (i.e. NOT TO BITMAPS) before the + function returns, unless the bit flag FT_LOAD_IGNORE_TRANSFORM + was set in the load flags. + + - Once a glyph image has been loaded, it can be directly + converted to a bitmap by using the new FT_Render_Glyph + function. Note that this function takes the glyph image from + the glyph slot, and converts it to a bitmap whose properties + are returned in `face.glyph.bitmap', `face.glyph.bitmap_left' + and `face.glyph.bitmap_top'. The original native image might + be lost after the conversion. + + - When using the new bit flag FT_LOAD_RENDER, the FT_Load_Glyph + and FT_Load_Char functions will call FT_Render_Glyph + automatically when needed. + + - Reformatted all modules source code in order to get rid of the + basic data types redifinitions (i.e. `TT_Int' instead of `FT_Int', + `T1_Fixed' instead of `FT_Fixed'). Hence the format-specific + prefixes like `TT_', `T1_', `T2_' and `CID_' are only used for + relevant structures. + + +====================================================================== + +OLD CHANGES FOR BETA 7 + + - bug-fixed the OpenType/CFF parser. It now loads and displays my + two fonts nicely, but I'm pretty certain that more testing is + needed :-) + + - fixed the crummy Type 1 hinter, it now handles accented characters + correctly (well, the accent is not always well placed, but that's + another problem..) + + - added the CID-keyed Type 1 driver in `src/cid'. Works pretty well + for only 13 Kb of code ;-) Doesn't read AFM files though, nor the + really useful CMAP files.. + + - fixed two bugs in the smooth renderer (src/base/ftgrays.c). + Thanks to Boris Letocha for spotting them and providing a fix. + + - fixed potential `divide by zero' bugs in ftcalc.c. + + - added source code for the OpenType/CFF driver (still incomplete + though..) + + - modified the SFNT driver slightly to perform more robust header + checks in TT_Load_SFNT_Header. This prevents certain font files + (e.g. some Type 1 Multiple Masters) from being incorrectly + `recognized' as TrueType font files.. + + - moved a lot of stuff from the TrueType driver to the SFNT module, + this allows greater code re-use between font drivers + (e.g. TrueType, OpenType, Compact-TrueType, etc..) + + - added a tiny segment cache to the SFNT Charmap 4 decoder, in order + to minimally speed it up.. + + - added support for Multiple Master fonts in `type1z'. There is + also a new file named which defines functions to + manage them from client applications. + + The new file `src/base/ftmm.c' is also optional to the engine.. + + - various formatting changes (e.g. EXPORT_DEF -> FT_EXPORT_DEF) + + small bug fixes in FT_Load_Glyph, the `type1' driver, etc.. + + - a minor fix to the Type 1 driver to let them apply the font matrix + correctly (used for many oblique fonts..) + + - some fixes for 64-bit systems (mainly changing some FT_TRACE calls + to use %p instead of %lx). Thanks to Karl Robillard. + + - fixed some bugs in the sbit loader (src/base/sfnt/ttsbit.c) + + added a new flag, FT_LOAD_CROP_BITMAP to query that bitmaps be + cropped when loaded from a file (maybe I should move the bitmap + cropper to the base layer ??). + + - changed the default number of gray levels of the smooth renderer + to 256 (instead of the previous 128). Of course, the human eye + can't see any difference ;-) + + - removed TT_MAX_SUBGLYPHS, there is no static limit on the number + of subglyphs in a TrueType font now.. + + +====================================================================== + +OLD CHANGES 16 May 2000 + + - tagged `BETA-6' in the CVS tree. This one is a serious release + candidate even though it doesn't incorporate the auto-hinter yet.. + + - various obsolete files were removed, and copyright header updated + + - finally updated the standard raster to fix the monochrome + rendering bug + re-enable support for 5-gray levels anti-aliasing + (suck, suck..) + + - created new header files, and modified sources accordingly: + + + - simple FreeType types, without the API + + - definition of memory-management macros + + - added the `DSIG' (OpenType Digital Signature) tag to + + + - light update/cleaning of the build system + changes to the sources + in order to get rid of _all_ compiler warnings with three + compilers, i.e: + + gcc with `-ansi -pedantic -Wall -W', Visual C++ with `/W3 /WX' and + LCC + + IMPORTANT NOTE FOR WIN32-LCC USERS: + | + | It seems the C pre-processor that comes with LCC is broken, it + | doesn't recognize the ANSI standard directives # and ## + | correctly when one of the argument is a macro. Also, + | something like: + | + | #define F(x) print##x + | + | F(("hello")) + | + | will get incorrectly translated to: + | + | print "hello") + | + | by its pre-processor. For this reason, you simply cannot build + | FreeType 2 in debug mode with this compiler.. + + - yet another massive grunt work. I've changed the definition of + the EXPORT_DEF, EXPORT_FUNC, BASE_DEF & BASE_FUNC macros. These + now take an argument, which is the function's return value type. + + This is necessary to compile FreeType as a DLL on Windows and + OS/2. Depending on the compiler used, a compiler-specific keyword + like __export or __system must be placed before (VisualC++) or + after (BorlandC++) the type.. + + Of course, this needed a lot of changes throughout the source code + to make it compile again... All cleaned up now, apparently.. + + Note also that there is a new EXPORT_VAR macro defined to allow + the _declaration_ of an exportable public (constant) + variable. This is the case of the raster interfaces (see + ftraster.h and ftgrays.h), as well as each module's interface (see + sfdriver.h, psdriver.h, etc..) + + - new feature: it is now possible to pass extra parameters to font + drivers when creating a new face object. For now, + this capability is unused. It could however prove to + be useful in a near future.. + + the FT_Open_Args structure was changes, as well as the internal + driver interface (the specific `init_face' module function has + now a different signature). + + - updated the tutorial (not finished though). + + - updated the top-level BUILD document + + - fixed a potential memory leak that could occur when loading + embedded bitmaps. + + - added the declaration of FT_New_Memory_Face in + , as it was missing from the public header + (the implementation was already in `ftobjs.c'). + + - the file has been seriously updated in order + to allow the automatic generation of error message tables. See + the comments within it for more information. + + - major directory hierarchy re-organisation. This was done for two + things: + + * first, to ease the `manual' compilation of the library by + requiring at lot less include paths :-) + + * second, to allow external programs to effectively access + internal data fields. For example, this can be extremely + useful if someone wants to write a font producer or a font + manager on top of FreeType. + + Basically, you should now use the 'freetype/' prefix for header + inclusion, as in: + + #include + #include + + Some new include sub-directories are available: + + a. the `freetype/config' directory, contains two files used to + configure the build of the library. Client applications + should not need to look at these normally, but they can if + they want. + + #include + #include + + b. the `freetype/internal' directory, contains header files that + describes library internals. These are the header files that + were previously found in the `src/base' and `src/shared' + directories. + + + As usual, the build system and the demos have been updated to + reflect the change.. + + Here's a layout of the new directory hierarchy: + + TOP_DIR + include/ + freetype/ + freetype.h + ... + config/ + ftoption.h + ftconfig.h + ftmodule.h + + internal/ + ftobjs.h + ftstream.h + ftcalc.h + ... + + src/ + base/ + ... + + sfnt/ + psnames/ + truetype/ + type1/ + type1z/ + + + Compiling a module is now much easier, for example, the following + should work when in the TOP_DIR directory on an ANSI build: + + gcc -c -I./include -I./src/base src/base/ftbase.c + gcc -c -I./include -I./src/sfnt src/sfnt/sfnt.c + etc.. + + (of course, using -Iconfig/ if you provide system-specific + configuration files). + + - updated the structure of FT_Outline_Funcs in order to allow direct + coordinate scaling within the outline decomposition routine (this + is important for virtual `on' points with TrueType outlines) + + updates to the rasters to support this.. + + - updated the OS/2 table loading code in `src/sfnt/ttload.c' in + order to support version 2 of the table (see OpenType 1.2 spec) + + - created `include/tttables.h' and `include/t1tables.h' to allow + client applications to access some of the SFNT and T1 tables of a + face with a procedural interface (see `FT_Get_Sfnt_Table') + + updates to internal source files to reflect the change.. + + - some cleanups in the source code to get rid of warnings when + compiling with the `-Wall -W -ansi -pedantic' options in gcc. + + - debugged and moved the smooth renderer to `src/base/ftgrays.c' and + its header to `include/ftgrays.h' + + - updated TT_MAX_SUBGLYPHS to 96 as some CJK fonts have composites + with up to 80 sub-glyphs !! Thanks to Werner + + +====================================================================== + +OLD CHANGES - 14-apr-2000 + + - fixed a bug in the TrueType glyph loader that prevented the + correct loading of some CJK glyphs in mingli.ttf + + - improved the standard Type 1 hinter in `src/type1' + + - fixed two bugs in the experimental Type 1 driver in `src/type1z' + to handle the new XFree86 4.0 fonts (and a few other ones..) + + - the smooth renderer is now complete and supports sub-banding to + render large glyphs at high speed. However, it is still located + in `demos/src/ftgrays.c' and should move to the library itself in + the next beta. NOTE: The smooth renderer doesn't compile in + stand-alone mode anymore, but this should be fixed RSN.. + + - introduced convenience functions to more easily deal with glyph + images, see `include/ftglyph.h' for more details, as well as the + new demo program named `demos/src/ftstring.c' that demonstrates + its use + + - implemented FT_LOAD_NO_RECURSE in both the TrueType and Type 1 + drivers (this is required by the auto-hinter to improve its + results). + + - changed the raster interface, in order to allow client + applications to provide their own span-drawing callbacks. + However, only the smooth renderer supports this. See + `FT_Raster_Params' in the file `include/ftimage.h'. + + - fixed a small bug in FT_MulFix that caused incorrect transform + computation! + + - Note: The tutorial is out-of-date. + + +====================================================================== + +OLD CHANGES - 12-mar-2000 + + - changed the layout of configuration files : now, all ANSI + configuration files are located in + `freetype2/config'. System-specific over-rides can be placed in + `freetype2/config/'. + + - moved all configuration macros to `config/ftoption.h' + + - improvements in the Type 1 driver with AFM support + + - changed the fields in the FT_Outline structure : the old `flags' + array is re-named `tags', while all ancient flags are encoded into + a single unsigned int named `flags'. + + - introduced new flags in FT_Outline.flags (see + ft_outline_.... enums in `ftimage.h'). + + - changed outline functions to `FT_Outline_' syntax + + - added a smooth anti-alias renderer to the demonstration programs + + - added Mac graphics driver (thanks Just) + + - FT_Open_Face changed in order to received a pointer to a + FT_Open_Args descriptor.. + + - various cleanups, a few more API functions implemented (see + FT_Attach_File) + + - updated some docs + + +====================================================================== + +OLD CHANGES - 22-feb-2000 + + - introduced the `psnames' module. It is used to: + + o convert a Postscript glyph name into the equivalent Unicode + character code (used by the Type 1 driver(s) to synthesize on + the fly a Unicode charmap). + + o provide an interface to retrieve the Postscript names of the + Macintosh, Adobe Standard & Adobe Expert character codes. + (the Macintosh names are used by the SFNT-module postscript + names support routines, while the other two tables are used by + the Type 1 driver(s)). + + - introduced the `type1z' alternate Type 1 driver. This is a (still + experimental) driver for the Type 1 format that will ultimately + replace the one in `src/type1'. It uses pattern matching to load + data from the font, instead of a finite state analyzer. It works + much better than the `old' driver with `broken' fonts. It is also + much smaller (under 15 Kb). + + - the Type 1 drivers (both in `src/type1' and `src/type1z') are + nearly complete. They both provide automatic Unicode charmap + synthesis through the `psnames' module. No re-encoding vector is + needed. (note that they still leak memory due to some code + missing, and I'm getting lazy). + + Trivial AFM support has been added to read kerning information but + wasn't exactly tested as it should ;-) + + - The TrueType glyph loader has been seriously rewritten (see the + file `src/truetype/ttgload.c'. It is now much, much simpler as + well as easier to read, maintain and understand :-) Preliminary + versions introduced a memory leak that has been reported by Jack + Davis, and is now fixed.. + + - introduced the new `ft_glyph_format_plotter', used to represent + stroked outlines like Windows `Vector' fonts, and certain Type 1 + fonts like `Hershey'. The corresponding raster will be written + soon. + + - FT_New_Memory_Face is gone. Likewise, FT_Open_Face has a new + interface that uses a structure to describe the input stream, the + driver (if required), etc.. + + +TODO + + - Write FT_Get_Glyph_Bitmap and FT_Load_Glyph_Bitmap + + - Add a function like FT_Load_Character(face, char_code, load_flags) + that would really embed a call to FT_Get_Char_Index then + FT_Load_Glyph to ease developer's work. + + - Update the tutorial! + + - consider adding support for Multiple Master fonts in the Type 1 + drivers. + + - Test the AFM routines of the Type 1 drivers to check that kerning + information is returned correctly. + + - write a decent auto-gridding component !! We need this to release + FreeType 2.0 gold ! + + +less urgent needs: + + - add a CFF/Type2 driver + - add a BDF driver + - add a FNT/PCF/HBF driver + - add a Speedo driver from the X11 sources + + +====================================================================== + +OLDER CHANGES - 27-jan-2000 + + - updated the `sfnt' module interface to allow several SFNT-based + drivers to co-exist peacefully + + - updated the `T1_Face' type to better separate Postscript font + content from the rest of the FT_Face structure. Might be used + later by the CFF/Type2 driver.. + + - added an experimental replacement Type 1 driver featuring advanced + (and speedy) pattern matching to retrieve the data from postscript + fonts. + + - very minor changes in the implementation of FT_Set_Char_Size and + FT_Set_Pixel_Sizes (they now implement default to lighten the font + driver's code). + + +====================================================================== + +OLD MESSAGE + +This file summarizes the changes that occurred since the last `beta' +of FreeType 2. Because the list is important, it has been divided into +separate sections: + +Table Of Contents: + + I High-Level Interface (easier !) + II Directory Structure + III Glyph Image Formats + IV Build System + V Portability + VI Font Drivers + + +---------------------------------------------------------------------- + +High-Level Interface: + + The high-level API has been considerably simplified. Here is how: + + - resource objects have disappeared. this means that face objects + can now be created with a single function call (see FT_New_Face + and FT_Open_Face) + + - when calling either FT_New_Face & FT_Open_Face, a size object + and a glyph slot object are automatically created for the face, + and can be accessed through `face->glyph' and `face->size' if + one really needs to. In most cases, there's no need to call + FT_New_Size or FT_New_Glyph. + + - similarly, FT_Load_Glyph now only takes a `face' argument + (instead of a glyph slot and a size). Also, its `result' + parameter is gone, as the glyph image type is returned in the + field `face->glyph.format' + + - the list of available charmaps is directly accessible through + `face->charmaps', counting `face->num_charmaps' elements. Each + charmap has an 'encoding' field which specifies which known + encoding it deals with. Valid values are, for example: + + ft_encoding_unicode (for ASCII, Latin-1 and Unicode) + ft_encoding_apple_roman + ft_encoding_sjis + ft_encoding_adobe_standard + ft_encoding_adobe_expert + + other values may be added in the future. Each charmap still + holds its `platform_id' and `encoding_id' values in case the + encoding is too exotic for the current library + + +---------------------------------------------------------------------- + +Directory Structure: + + Should seem obvious to most of you: + + freetype/ + config/ -- configuration sub-makefiles + ansi/ + unix/ -- platform-specific configuration files + win32/ + os2/ + msdos/ + + include/ -- public header files, those to be included + directly by client apps + + src/ -- sources of the library + base/ -- the base layer + sfnt/ -- the sfnt `driver' (see the drivers section + below) + truetype/ -- the truetype driver + type1/ -- the type1 driver + shared/ -- some header files shared between drivers + + demos/ -- demos/tools + + docs/ -- documentation (a bit empty for now) + + +---------------------------------------------------------------------- + +Glyph Image Formats: + + Drivers are now able to register new glyph image formats within the + library. For now, the base layer supports of course bitmaps and + vector outlines, but one could imagine something different like + colored bitmaps, bi-color vectors or whatever else (Metafonts anyone + ??). + + See the file `include/ftimage.h'. Note also that the type + FT_Raster_Map is gone, and is now replaced by FT_Bitmap, which + should encompass all known bitmap types. + + Each new image format must provide at least one `raster', i.e. a + module capable of transforming the glyph image into a bitmap. It's + also possible to change the default raster used for a given glyph + image format. + + The default outline scan-converter now uses 128 levels of grays by + default, which tends to smooth many things. Note that the demo + programs have been updated significantly in order to display these.. + + +---------------------------------------------------------------------- + +Build system: + + You still need GNU Make to build the library. The build system has + been very seriously re-vamped in order to provide things like : + + - automatic host platform detection (reverting to 'config/ansi' if + it is not detected, with pseudo-standard compilation flags) + + - the ability to compile from the Makefiles with very different and + exotic compilers. Note that linking the library can be difficult + for some platforms. + + For example, the file `config/win32/lcclib.bat' is invoked by the + build system to create the `.lib' file with LCC-Win32 because its + librarian has too many flaws to be invoked directly from the + Makefile. + + Here's how it works: + + - the first time you type `make', the build system runs a series of + sub-makefiles in order to detect your host platform. It then + dumps what it found, and creates a file called `config.mk' in the + current directory. This is a sub-Makefile used to define many + important Make variables used to build the library. + + - the second time, the build system detects the `config.mk' then use + it to build the library. All object files go into 'obj' by + default, as well as the library file, but this can easily be + changed. + + Note that you can run `make setup' to force another host platform + detection even if a `config.mk' is present in the current + directory. Another solution is simply to delete the file, then + re-run make. + + Finally, the default compiler for all platforms is gcc (for now, + this will hopefully changed in the future). You can however specify + a different compiler by specifying it after the 'setup' target as + in: + + gnumake setup lcc on Win32 to use the LCC compiler + gnumake setup visualc on Win32 to use Visual C++ + + See the file `config//detect.mk' for a list of supported + compilers for your platforms. + + It should be relatively easy to write new detection rules files and + config.mk.. + + Finally, to build the demo programs, go to `demos' and launch GNU + Make, it will use the `config.mk' in the top directory to build the + test programs.. + + +---------------------------------------------------------------------- + +Portability: + + In the previous beta, a single FT_System object was used to + encompass all low-level operations like thread synchronisation, + memory management and i/o access. This has been greatly simplified: + + - thread synchronisation has been dropped, for the simple reason + that the library is already re-entrant, and that if you really + need two threads accessing the same FT_Library, you should + really synchronize access to it yourself with a simple mutex. + + - memory management is performed through a very simple object + called `FT_Memory', which really is a table containing a table + of pointers to functions like malloc, realloc and free as well + as some user data (closure). + + - resources have disappeared (they created more problems than they + solved), and i/o management have been simplified greatly as a + result. Streams are defined through FT_Stream objects, which + can be either memory-based or disk-based. + + Note that each face has its own stream, which is closed only + when the face object is destroyed. Hence, a function like + TT_Flush_Face in 1.x cannot be directly supported. However, if + you really need something like this, you can easily tailor your + own streams to achieve the same feature at a lower level (and + use FT_Open_Face instead of FT_New_Face to create the face). + + See the file `include/ftsystem.h' for more details, as well as the + implementations found in `config/unix' and `config/ansi'. + + +---------------------------------------------------------------------- + +Font Drivers: + + The Font Driver interface has been modified in order to support + extensions & versioning. + + + The list of the font drivers that are statically linked to the + library at compile time is managed through a new configuration file + called `config//ftmodule.h'. + + This file is autogenerated when invoking `make modules'. This + target will parse all sub-directories of 'src', looking for a + `module.mk' rules file, used to describe the driver to the build + system. + + Hence, one should call `make modules' each time a font driver is + added or removed from the `src' directory. + + Finally, this version provides a `pseudo-driver' in `src/sfnt'. + This driver doesn't support font files directly, but provides + services used by all TrueType-like font drivers. Hence, its code is + shared between the TrueType & OpenType font formats, and possibly + more formats to come if we're lucky.. + + +---------------------------------------------------------------------- + +Extensions support: + + The extensions support is inspired by the one found in 1.x. + + Now, each font driver has its own `extension registry', which lists + which extensions are available for the font faces managed by the + driver. + + Extension ids are now strings, rather than 4-byte tags, as this is + usually more readable. + + Each extension has: + - some data, associated to each face object + - an interface (table of function pointers) + + An extension that is format-specific should simply register itself + to the correct font driver. Here is some example code: + + // Registering an extensions + // + FT_Error FT_Init_XXXX_Extension( FT_Library library ) + { + FT_DriverInterface* tt_driver; + + driver = FT_Get_Driver( library, "truetype" ); + if (!driver) return FT_Err_Unimplemented_Feature; + + return FT_Register_Extension( driver, &extension_class ); + } + + + // Implementing the extensions + // + FT_Error FT_Proceed_Extension_XXX( FT_Face face ) + { + FT_XXX_Extension ext; + FT_XXX_Extension_Interface ext_interface; + + ext = FT_Get_Extension( face, "extensionid", &ext_interface ); + if (!ext) return error; + + return ext_interface->do_it(ext); + } + +------------------------------------------------------------------------ + +Copyright 2000-2012 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute this +file you indicate that you have read the license and understand and +accept it fully. + + +Local Variables: +version-control: never +coding: utf-8 +End: + +--- end of CHANGES --- diff --git a/docs/CUSTOMIZE b/docs/CUSTOMIZE new file mode 100644 index 0000000..7d7d474 --- /dev/null +++ b/docs/CUSTOMIZE @@ -0,0 +1,150 @@ +How to customize the compilation of the library +=============================================== + + FreeType is highly customizable to fit various needs, and this + document describes how it is possible to select options and + components at compilation time. + + +I. Configuration macros + + The file found in `include/freetype/config/ftoption.h' contains a + list of commented configuration macros that can be toggled by + developers to indicate which features should be active while + building the library. + + These options range from debug level to availability of certain + features, like native TrueType hinting through a bytecode + interpreter. + + We invite you to read this file for more information. You can + change the file's content to suit your needs, or override it with + one of the techniques described below. + + +II. Modules list + + If you use GNU make please edit the top-level file `modules.cfg'. + It contains a list of available FreeType modules and extensions to + be compiled. Change it to suit your own preferences. Be aware that + certain modules depend on others, as described in the file. GNU + make uses `modules.cfg' to generate `ftmodule.h' (in the object + directory). + + If you don't use GNU make you have to manually edit the file + `include/freetype/config/ftmodule.h' (which is *not* used with if + compiled with GNU make) to add or remove the drivers and components + you want to compile into the library. See `INSTALL.ANY' for more + information. + + +III. System interface + + FreeType's default interface to the system (i.e., the parts that + deal with memory management and i/o streams) is located in + `src/base/ftsystem.c'. + + The current implementation uses standard C library calls to manage + memory and to read font files. It is however possible to write + custom implementations to suit specific systems. + + To tell the GNU Make-based build system to use a custom system + interface, you have to define the environment variable FTSYS_SRC to + point to the relevant implementation: + + on Unix: + + ./configure + export FTSYS_SRC=foo/my_ftsystem.c + make + make install + + on Windows: + + make setup + set FTSYS_SRC=foo/my_ftsystem.c + make + + +IV. Overriding default configuration and module headers + + It is possible to override the default configuration and module + headers without changing the original files. There are three ways + to do that: + + + 1. With GNU make + + [This is actually a combination of method 2 and 3.] + + Just put your custom `ftoption.h' file into the objects directory + (normally `/objs'), which GNU make prefers over the + standard location. No action is needed for `ftmodule.h' because + it is generated automatically in the objects directory. + + + 2. Using the C include path + + Use the C include path to ensure that your own versions of the + files are used at compile time when the lines + + #include FT_CONFIG_OPTIONS_H + #include FT_CONFIG_MODULES_H + + are compiled. Their default values being + and , you + can do something like: + + custom/ + freetype/ + config/ + ftoption.h => custom options header + ftmodule.h => custom modules list + + include/ => normal FreeType 2 include + freetype/ + ... + + then change the C include path to always give the path to `custom' + before the FreeType 2 `include'. + + + 3. Redefining FT_CONFIG_OPTIONS_H and FT_CONFIG_MODULES_H + + Another way to do the same thing is to redefine the macros used to + name the configuration headers. To do so, you need a custom + `ft2build.h' whose content can be as simple as: + + #ifndef __FT2_BUILD_MY_PLATFORM_H__ + #define __FT2_BUILD_MY_PLATFORM_H__ + + #define FT_CONFIG_OPTIONS_H + #define FT_CONFIG_MODULES_H + + #include + + #endif /* __FT2_BUILD_MY_PLATFORM_H__ */ + + Place those files in a separate directory, e.g., + + custom/ + ft2build.h => custom version described above + my-ftoption.h => custom options header + my-ftmodule.h => custom modules list header + + and change the C include path to ensure that `custom' is always + placed before the FT2 `include' during compilation. + +---------------------------------------------------------------------- + +Copyright 2003, 2005, 2006 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute +this file you indicate that you have read the license and understand +and accept it fully. + + +--- end of CUSTOMIZE --- diff --git a/docs/DEBUG b/docs/DEBUG new file mode 100644 index 0000000..3d6acd3 --- /dev/null +++ b/docs/DEBUG @@ -0,0 +1,202 @@ +Debugging within the FreeType sources +===================================== + +I. Configuration macros +----------------------- + +There are several ways to enable debugging features in a FreeType 2 +builds. This is controlled through the definition of special macros +located in the file `ftoptions.h'. The macros are: + + + FT_DEBUG_LEVEL_ERROR + + #define this macro if you want to compile the FT_ERROR macro calls + to print error messages during program execution. This will not + stop the program. Very useful to spot invalid fonts during + development and to code workarounds for them. + + FT_DEBUG_LEVEL_TRACE + + #define this macro if you want to compile both macros FT_ERROR and + FT_TRACE. This also includes the variants FT_TRACE0, FT_TRACE1, + FT_TRACE2, ..., FT_TRACE7. + + The trace macros are used to send debugging messages when an + appropriate `debug level' is configured at runtime through the + FT2_DEBUG environment variable (more on this later). + + FT_DEBUG_MEMORY + + If this macro is #defined, the FreeType engine is linked with a + small but effective debugging memory manager that tracks all + allocations and frees that are performed within the font engine. + + When the FT2_DEBUG_MEMORY environment variable is defined at + runtime, a call to FT_Done_FreeType will dump memory statistics, + including the list of leaked memory blocks with the source locations + where these were allocated. It is always a very good idea to define + this in development builds. This works with _any_ program linked to + FreeType, but requires a big deal of memory (the debugging memory + manager never frees the blocks to the heap in order to detect double + frees). + + When FT2_DEBUG_MEMORY isn't defined at runtime, the debugging memory + manager is ignored, and performance is unaffected. + + +II. Debugging macros +-------------------- + +Several macros can be used within the FreeType sources to help debugging +its code: + + + 1. FT_ERROR(( ... )) + + This macro is used to send debug messages that indicate relatively + serious errors (like broken font files), but will not stop the + execution of the running program. Its code is compiled only when + either FT_DEBUG_LEVEL_ERROR or FT_DEBUG_LEVEL_TRACE are defined in + `ftoption.h'. + + Note that you have to use a printf-like signature, but with double + parentheses, like in + + FT_ERROR(( "your %s is not %s\n", "foo", "bar" )); + + + 2. FT_ASSERT( condition ) + + This macro is used to check strong assertions at runtime. If its + condition isn't TRUE, the program will abort with a panic message. + Its code is compiled when either FT_DEBUG_LEVEL_ERROR or + FT_DEBUG_LEVEL_TRACE are defined. You don't need double parentheses + here. For example + + FT_ASSERT( ptr != NULL ); + + + 3. FT_TRACE( level, (message...) ) + + The FT_TRACE macro is used to send general-purpose debugging + messages during program execution. This macro uses an *implicit* + macro named FT_COMPONENT used to name the current FreeType component + being run. + + The developer should always define FT_COMPONENT as appropriate, for + example as in + + #undef FT_COMPONENT + #define FT_COMPONENT trace_io + + The value of the FT_COMPONENT macro is an enumeration named + trace_XXXX where XXXX is one of the component names defined in the + internal file `freetype/internal/fttrace.h'. If you modify FreeType + source and insert new trace_XXXX macro, you must register it in + fttrace.h. If you insert or remove many trace macros, you can check + the undefined or the unused trace macro by src/tools/chktrcmp.py. + + Each such component is assigned a `debug level', ranging from 0 + to 7, through the use of the FT2_DEBUG environment variable + (described below) when a program linked with FreeType starts. + + When FT_TRACE is called, its level is compared to the one of the + corresponding component. Messages with trace levels *higher* than + the corresponding component level are filtered and never printed. + + This means that trace messages with level 0 are always printed, + those with level 2 are only printed when the component level is *at + least* 2. + + The second parameter to FT_TRACE must contain parentheses and + correspond to a printf-like call, as in + + FT_TRACE( 2, ( "your %s is not %s\n", "foo", "bar" ) ) + + The shortcut macros FT_TRACE0, FT_TRACE1, FT_TRACE2, ..., FT_TRACE7 + can be used with constant level indices, and are much cleaner to + use, as in + + FT_TRACE2(( "your %s is not %s\n", "foo", "bar" )); + + +III. Environment variables +-------------------------- + +The following environment variables control debugging output and +behaviour of FreeType at runtime. + + + FT2_DEBUG + + This variable is only used when FreeType is built with + FT_DEBUG_LEVEL_TRACE defined. It contains a list of component level + definitions, following this format: + + component1:level1 component2:level2 component3:level3 ... + + where `componentX' is the name of a tracing component, as defined in + `fttrace.h', but without the `trace_' prefix. `levelX' is the + corresponding level to use at runtime. + + `any' is a special component name that will be interpreted as + `any/all components'. For example, the following definitions + + set FT2_DEBUG=any:2 memory:5 io:4 (on Windows) + export FT2_DEBUG="any:2 memory:5 io:4" (on Linux with bash) + + both stipulate that all components should have level 2, except for + the memory and io components which will be set to trace levels 5 and + 4, respectively. + + + FT2_DEBUG_MEMORY + + This environment variable, when defined, tells FreeType to use a + debugging memory manager that will track leaking memory blocks as + well as other common errors like double frees. It is also capable + of reporting _where_ the leaking blocks were allocated, which + considerably saves time when debugging new additions to the library. + + This code is only compiled when FreeType is built with the + FT_DEBUG_MEMORY macro #defined in `ftoption.h' though, it will be + ignored in other builds. + + + FT2_ALLOC_TOTAL_MAX + + This variable is ignored if FT2_DEBUG_MEMORY is not defined. It + allows you to specify a maximum heap size for all memory allocations + performed by FreeType. This is very useful to test the robustness + of the font engine and programs that use it in tight memory + conditions. + + If it is undefined, or if its value is not strictly positive, then + no allocation bounds are checked at runtime. + + + FT2_ALLOC_COUNT_MAX + + This variable is ignored if FT2_DEBUG_MEMORY is not defined. It + allows you to specify a maximum number of memory allocations + performed by FreeType before returning the error + FT_Err_Out_Of_Memory. This is useful for debugging and testing the + engine's robustness. + + If it is undefined, or if its value is not strictly positive, then + no allocation bounds are checked at runtime. + +------------------------------------------------------------------------ + +Copyright 2002, 2003, 2004, 2005, 2009 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute this +file you indicate that you have read the license and understand and +accept it fully. + + +--- end of DEBUG --- diff --git a/docs/FTL.TXT b/docs/FTL.TXT new file mode 100644 index 0000000..bbaba33 --- /dev/null +++ b/docs/FTL.TXT @@ -0,0 +1,169 @@ + The FreeType Project LICENSE + ---------------------------- + + 2006-Jan-27 + + Copyright 1996-2002, 2006 by + David Turner, Robert Wilhelm, and Werner Lemberg + + + +Introduction +============ + + The FreeType Project is distributed in several archive packages; + some of them may contain, in addition to the FreeType font engine, + various tools and contributions which rely on, or relate to, the + FreeType Project. + + This license applies to all files found in such packages, and + which do not fall under their own explicit license. The license + affects thus the FreeType font engine, the test programs, + documentation and makefiles, at the very least. + + This license was inspired by the BSD, Artistic, and IJG + (Independent JPEG Group) licenses, which all encourage inclusion + and use of free software in commercial and freeware products + alike. As a consequence, its main points are that: + + o We don't promise that this software works. However, we will be + interested in any kind of bug reports. (`as is' distribution) + + o You can use this software for whatever you want, in parts or + full form, without having to pay us. (`royalty-free' usage) + + o You may not pretend that you wrote this software. If you use + it, or only parts of it, in a program, you must acknowledge + somewhere in your documentation that you have used the + FreeType code. (`credits') + + We specifically permit and encourage the inclusion of this + software, with or without modifications, in commercial products. + We disclaim all warranties covering The FreeType Project and + assume no liability related to The FreeType Project. + + + Finally, many people asked us for a preferred form for a + credit/disclaimer to use in compliance with this license. We thus + encourage you to use the following text: + + """ + Portions of this software are copyright © The FreeType + Project (www.freetype.org). All rights reserved. + """ + + Please replace with the value from the FreeType version you + actually use. + + +Legal Terms +=========== + +0. Definitions +-------------- + + Throughout this license, the terms `package', `FreeType Project', + and `FreeType archive' refer to the set of files originally + distributed by the authors (David Turner, Robert Wilhelm, and + Werner Lemberg) as the `FreeType Project', be they named as alpha, + beta or final release. + + `You' refers to the licensee, or person using the project, where + `using' is a generic term including compiling the project's source + code as well as linking it to form a `program' or `executable'. + This program is referred to as `a program using the FreeType + engine'. + + This license applies to all files distributed in the original + FreeType Project, including all source code, binaries and + documentation, unless otherwise stated in the file in its + original, unmodified form as distributed in the original archive. + If you are unsure whether or not a particular file is covered by + this license, you must contact us to verify this. + + The FreeType Project is copyright (C) 1996-2000 by David Turner, + Robert Wilhelm, and Werner Lemberg. All rights reserved except as + specified below. + +1. No Warranty +-------------- + + THE FREETYPE PROJECT IS PROVIDED `AS IS' WITHOUT WARRANTY OF ANY + KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, + WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE. IN NO EVENT WILL ANY OF THE AUTHORS OR COPYRIGHT HOLDERS + BE LIABLE FOR ANY DAMAGES CAUSED BY THE USE OR THE INABILITY TO + USE, OF THE FREETYPE PROJECT. + +2. Redistribution +----------------- + + This license grants a worldwide, royalty-free, perpetual and + irrevocable right and license to use, execute, perform, compile, + display, copy, create derivative works of, distribute and + sublicense the FreeType Project (in both source and object code + forms) and derivative works thereof for any purpose; and to + authorize others to exercise some or all of the rights granted + herein, subject to the following conditions: + + o Redistribution of source code must retain this license file + (`FTL.TXT') unaltered; any additions, deletions or changes to + the original files must be clearly indicated in accompanying + documentation. The copyright notices of the unaltered, + original files must be preserved in all copies of source + files. + + o Redistribution in binary form must provide a disclaimer that + states that the software is based in part of the work of the + FreeType Team, in the distribution documentation. We also + encourage you to put an URL to the FreeType web page in your + documentation, though this isn't mandatory. + + These conditions apply to any software derived from or based on + the FreeType Project, not just the unmodified files. If you use + our work, you must acknowledge us. However, no fee need be paid + to us. + +3. Advertising +-------------- + + Neither the FreeType authors and contributors nor you shall use + the name of the other for commercial, advertising, or promotional + purposes without specific prior written permission. + + We suggest, but do not require, that you use one or more of the + following phrases to refer to this software in your documentation + or advertising materials: `FreeType Project', `FreeType Engine', + `FreeType library', or `FreeType Distribution'. + + As you have not signed this license, you are not required to + accept it. However, as the FreeType Project is copyrighted + material, only this license, or another one contracted with the + authors, grants you the right to use, distribute, and modify it. + Therefore, by using, distributing, or modifying the FreeType + Project, you indicate that you understand and accept all the terms + of this license. + +4. Contacts +----------- + + There are two mailing lists related to FreeType: + + o freetype@nongnu.org + + Discusses general use and applications of FreeType, as well as + future and wanted additions to the library and distribution. + If you are looking for support, start in this list if you + haven't found anything to help you in the documentation. + + o freetype-devel@nongnu.org + + Discusses bugs, as well as engine internals, design issues, + specific licenses, porting, etc. + + Our home page can be found at + + http://www.freetype.org + + +--- end of FTL.TXT --- diff --git a/docs/GPLv2.TXT b/docs/GPLv2.TXT new file mode 100644 index 0000000..b2fe7b6 --- /dev/null +++ b/docs/GPLv2.TXT @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + + We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + + Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. (This alternative is + allowed only for noncommercial distribution and only if you + received the program in object code or executable form with such + an offer, in accord with Subsection b above.) + +The source code for a work means the preferred form of the work for +making modifications to it. For an executable work, complete source +code means all the source code for all modules it contains, plus any +associated interface definition files, plus the scripts used to +control compilation and installation of the executable. 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Any attempt +otherwise to copy, modify, sublicense or distribute the Program is +void, and will automatically terminate your rights under this License. +However, parties who have received copies, or rights, from you under +this License will not have their licenses terminated so long as such +parties remain in full compliance. + + 5. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Program or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Program (or any work based on the +Program), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Program or works based on it. + + 6. Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +any particular circumstance, the balance of the section is intended to +apply and the section as a whole is intended to apply in other +circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system, which is +implemented by public license practices. Many people have made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + + 8. If the distribution and/or use of the Program is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Program under this License +may add an explicit geographical distribution limitation excluding +those countries, so that distribution is permitted only in or among +countries not thus excluded. In such case, this License incorporates +the limitation as if written in the body of this License. + + 9. The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/docs/INSTALL b/docs/INSTALL new file mode 100644 index 0000000..fc699a8 --- /dev/null +++ b/docs/INSTALL @@ -0,0 +1,83 @@ + +There are several ways to build the FreeType library, depending on +your system and the level of customization you need. Here is a short +overview of the documentation available: + + +I. Normal installation and upgrades +=================================== + + 1. Unix Systems (including Mac OS X, Cygwin, and MSys on Windows) + + Please read `INSTALL.UNIX' to install or upgrade FreeType 2 on a + Unix system. Note that you *need* GNU Make for automatic + compilation, since other make tools won't work (this includes BSD + Make). + + GNU Make VERSION 3.80 OR NEWER IS NEEDED! + + + 2. On VMS with the `mms' build tool + + See `INSTALL.VMS' for installation instructions on this platform. + + + 3. Other systems using GNU Make + + On non-Unix platforms, it is possible to build the library using + GNU Make utility. Note that *NO OTHER MAKE TOOL WILL WORK*[1]! + This methods supports several compilers on Windows, OS/2, and + BeOS, including MinGW, Visual C++, Borland C++, and more. + + Instructions are provided in the file `INSTALL.GNU'. + + + 4. With an IDE Project File (e.g., for Visual Studio or CodeWarrior) + + We provide a small number of `project files' for various IDEs to + automatically build the library as well. Note that these files + are not supported and only sporadically maintained by FreeType + developers, so don't expect them to work in each release. + + To find them, have a look at the content of the `builds/' + directory, where stands for your OS or environment. + + + 5. From you own IDE, or own Makefiles + + If you want to create your own project file, follow the + instructions given in the `INSTALL.ANY' document of this + directory. + + +II. Custom builds of the library +================================ + + Customizing the compilation of FreeType is easy, and allows you to + select only the components of the font engine that you really need. + For more details read the file `CUSTOMIZE'. + + +---------------------------------------------------------------------- + +[1] make++, a make tool written in Perl, has sufficient support of GNU + make extensions to build FreeType. See + + http://makepp.sourceforge.net + + for more information; you need version 1.19 or newer, and you must + pass option `--norc-substitution'. + +---------------------------------------------------------------------- + +Copyright 2000-2008, 2010-2011 +by David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute +this file you indicate that you have read the license and understand +and accept it fully. + + +--- end of INSTALL --- diff --git a/docs/INSTALL.ANY b/docs/INSTALL.ANY new file mode 100644 index 0000000..80f161c --- /dev/null +++ b/docs/INSTALL.ANY @@ -0,0 +1,156 @@ +Instructions on how to build FreeType with your own build tool +============================================================== + +See the file `CUSTOMIZE' to learn how to customize FreeType to +specific environments. + + +I. Standard procedure +--------------------- + + * DISABLE PRE-COMPILED HEADERS! This is very important for Visual + C++, because FreeType uses lines like: + + #include FT_FREETYPE_H + + which are not correctly supported by this compiler while being ISO + C compliant! + + * You need to add the directories `freetype2/include' to your + include path when compiling the library. + + * FreeType 2 is made of several components; each of them is located + in a subdirectory of `freetype2/src'. For example, + `freetype2/src/truetype/' contains the TrueType font driver. + + * DO NOT COMPILE ALL C FILES! Rather, compile the following ones. + + -- base components (required) + + src/base/ftsystem.c + src/base/ftinit.c + src/base/ftdebug.c + + src/base/ftbase.c + + src/base/ftbbox.c -- recommended, see + src/base/ftglyph.c -- recommended, see + + src/base/ftbdf.c -- optional, see + src/base/ftbitmap.c -- optional, see + src/base/ftcid.c -- optional, see + src/base/ftfstype.c -- optional + src/base/ftgasp.c -- optional, see + src/base/ftgxval.c -- optional, see + src/base/ftlcdfil.c -- optional, see + src/base/ftmm.c -- optional, see + src/base/ftotval.c -- optional, see + src/base/ftpatent.c -- optional + src/base/ftpfr.c -- optional, see + src/base/ftstroke.c -- optional, see + src/base/ftsynth.c -- optional, see + src/base/fttype1.c -- optional, see + src/base/ftwinfnt.c -- optional, see + src/base/ftxf86.c -- optional, see + + src/base/ftmac.c -- only on the Macintosh + + -- font drivers (optional; at least one is needed) + + src/bdf/bdf.c -- BDF font driver + src/cff/cff.c -- CFF/OpenType font driver + src/cid/type1cid.c -- Type 1 CID-keyed font driver + src/pcf/pcf.c -- PCF font driver + src/pfr/pfr.c -- PFR/TrueDoc font driver + src/sfnt/sfnt.c -- SFNT files support + (TrueType & OpenType) + src/truetype/truetype.c -- TrueType font driver + src/type1/type1.c -- Type 1 font driver + src/type42/type42.c -- Type 42 font driver + src/winfonts/winfnt.c -- Windows FONT / FNT font driver + + -- rasterizers (optional; at least one is needed for vector + formats) + + src/raster/raster.c -- monochrome rasterizer + src/smooth/smooth.c -- anti-aliasing rasterizer + + -- auxiliary modules (optional) + + src/autofit/autofit.c -- auto hinting module + src/cache/ftcache.c -- cache sub-system (in beta) + src/gzip/ftgzip.c -- support for compressed fonts (.gz) + src/lzw/ftlzw.c -- support for compressed fonts (.Z) + src/bzip2/ftbzip2.c -- support for compressed fonts (.bz2) + src/gxvalid/gxvalid.c -- TrueTypeGX/AAT table validation + src/otvalid/otvalid.c -- OpenType table validation + src/psaux/psaux.c -- PostScript Type 1 parsing + src/pshinter/pshinter.c -- PS hinting module + src/psnames/psnames.c -- PostScript glyph names support + + + Notes: + + `ftcache.c' needs `ftglyph.c' + `ftfstype.c' needs `fttype1.c' + `ftglyph.c' needs `ftbitmap.c' + `ftstroke.c' needs `ftglyph.c' + `ftsynth.c' needs `ftbitmap.c' + + `cff.c' needs `sfnt.c', `pshinter.c', and `psnames.c' + `truetype.c' needs `sfnt.c' and `psnames.c' + `type1.c' needs `psaux.c' `pshinter.c', and `psnames.c' + `type1cid.c' needs `psaux.c', `pshinter.c', and `psnames.c' + `type42.c' needs `truetype.c' + + To use `ftbzip2.c', an application must be linked with a library + which implements bzip2 support (and the bzip2 header files must + be available also during compilation). + + + Read the file `CUSTOMIZE' in case you want to compile only a subset + of the drivers, renderers, and optional modules; a detailed + description of the various base extension is given in the top-level + file `modules.cfg'. + + You are done. In case of problems, see the archives of the FreeType + development mailing list. + + +II. Support for flat-directory compilation +------------------------------------------ + + It is possible to put all FreeType 2 source files into a single + directory, with the *exception* of the `include' hierarchy. + + 1. Copy all files in current directory + + cp freetype2/src/base/*.[hc] . + cp freetype2/src/raster1/*.[hc] . + cp freetype2/src/smooth/*.[hc] . + etc. + + 2. Compile sources + + cc -c -Ifreetype2/include -DFT2_BUILD_LIBRARY ftsystem.c + cc -c -Ifreetype2/include -DFT2_BUILD_LIBRARY ftinit.c + cc -c -Ifreetype2/include -DFT2_BUILD_LIBRARY ftdebug.c + cc -c -Ifreetype2/include -DFT2_BUILD_LIBRARY ftbase.c + etc. + + You don't need to define the FT_FLAT_COMPILATION macro (as this + was required in previous releases of FreeType 2). + +---------------------------------------------------------------------- + +Copyright 2003, 2005, 2006, 2009, 2010 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute +this file you indicate that you have read the license and understand +and accept it fully. + + +--- end of INSTALL.ANY --- diff --git a/docs/INSTALL.CROSS b/docs/INSTALL.CROSS new file mode 100644 index 0000000..3def12c --- /dev/null +++ b/docs/INSTALL.CROSS @@ -0,0 +1,135 @@ +This document contains instructions on how to cross-build the FreeType +library on Unix systems, for example, building binaries for Linux/MIPS +on FreeBSD/i386. Before reading this document, please consult +INSTALL.UNIX for required tools and the basic self-building procedure. + + + 1. Required Tools + ----------------- + + For self-building the FreeType library on a Unix system, GNU Make + 3.80 or newer is required. INSTALL.UNIX contains hints how to + check the installed `make'. + + The GNU C compiler to cross-build the target system is required. + At present, using non-GNU cross compiler is not tested. The cross + compiler is expected to be installed with a system prefix. For + example, if your building system is FreeBSD/i386 and the target + system is Linux/MIPS, the cross compiler should be installed with + the name `mips-ip22-linuxelf-gcc'. + + A C compiler for a self-build is required also, to build a tool + that is executed during the building procedure. Non-GNU self + compilers are acceptable, but such a setup is not tested yet. + + + 2. Configuration + ---------------- + + 2.1. Building and target system + + To configure for cross-build, the options `--host=' and + `--build=' must be passed to configure. For example, if + your building system is FreeBSD/i386 and the target system is + Linux/MIPS, say + + ./configure \ + --build=i386-unknown-freebsd \ + --host=mips-ip22-linuxelf \ + [other options] + + It should be noted that `--host=' specifies the system + where the built binaries will be executed, not the system where + the build actually happens. Older versions of GNU autoconf use + the option pair `--host=' and `--target='. This is broken and + doesn't work. Similarly, an explicit CC specification like + + env CC=mips-ip22-linux-gcc ./configure + + or + + env CC=/usr/local/mips-ip22-linux/bin/gcc ./configure + + doesn't work either; such a configuration confuses the + `configure' script while trying to find the cross and native C + compilers. + + + 2.2. The prefix to install FreeType2 + + Setting `--prefix=' properly is important. The prefix + to install FreeType2 is written into the freetype-config script + and freetype2.pc configuration file. + + If the built FreeType 2 library is used as a part of the + cross-building system, the prefix is expected to be different + from the self-building system. For example, configuration with + `--prefix=/usr/local' installs binaries into the system wide + `/usr/local' directory which then can't be executed. This + causes confusion in configuration of all applications which use + FreeType2. Instead, use a prefix to install the cross-build + into a separate system tree, for example, + `--prefix=/usr/local/mips-ip22-linux/'. + + On the other hand, if the built FreeType2 is used as a part of + the target system, the prefix to install should reflect the file + system structure of the target system. + + + 3. Building command + ------------------- + + If the configuration finishes successfully, invoking GNU make + builds FreeType2. Just say + + make + + or + + gmake + + depending on the name the GNU make binary actually has. + + + 4. Installation + --------------- + + Saying + + make install + + as usual to install FreeType2 into the directory tree specified by + the argument of the `--prefix' option. + + As noted in section 2.2, FreeType2 is sometimes configured to be + installed into the system directory of the target system, and + should not be installed in the cross-building system. In such + cases, the make variable `DESTDIR' is useful to change the root + directory in the installation. For example, after + + make DESTDIR=/mnt/target_system_root/ install + + the built FreeType2 library files are installed into the directory + `/mnt/target_system_root//lib'. + + + 5. TODO + ------- + + Cross building between Cygwin (or MSys) and Unix must be tested. + + +---------------------------------------------------------------------- + +Copyright 2006, 2008 by suzuki toshiya +David Turner, Robert Wilhelm, and Werner Lemberg. + + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute +this file you indicate that you have read the license and understand +and accept it fully. + + +--- end of INSTALL.CROSS --- diff --git a/docs/INSTALL.GNU b/docs/INSTALL.GNU new file mode 100644 index 0000000..72df50a --- /dev/null +++ b/docs/INSTALL.GNU @@ -0,0 +1,159 @@ +This document contains instructions how to build the FreeType library +on non-Unix systems with the help of GNU Make. Note that if you are +running Cygwin or MSys in Windows, you should follow the instructions +in the file INSTALL.UNIX instead. + + + FreeType 2 includes a powerful and flexible build system that allows + you to easily compile it on a great variety of platforms from the + command line. To do so, just follow these simple instructions. + + 1. Install GNU Make + ------------------- + + Because GNU Make is the only Make tool supported to compile + FreeType 2, you should install it on your machine. + + The FreeType 2 build system relies on many features special to GNU + Make. + + NEARLY ALL OTHER MAKE TOOLS FAIL, INCLUDING `BSD MAKE', SO REALLY + INSTALL A RECENT VERSION OF GNU MAKE ON YOUR SYSTEM! + + Note that make++, a make tool written in Perl, supports enough + features of GNU make to compile FreeType. See + + http://makepp.sourceforge.net + + for more information; you need version 1.19 or newer, and you must + pass option `--norc-substitution'. + + Make sure that you are invoking GNU Make from the command line, by + typing something like: + + make -v + + to display its version number. + + VERSION 3.80 OR NEWER IS NEEDED! + + + 2. Invoke `make' + ---------------- + + Go to the root directory of FreeType 2, then simply invoke GNU + Make from the command line. This will launch the FreeType 2 host + platform detection routines. A summary will be displayed, for + example, on Win32. + + + ============================================================== + FreeType build system -- automatic system detection + + The following settings are used: + + platform win32 + compiler gcc + configuration directory .\builds\win32 + configuration rules .\builds\win32\w32-gcc.mk + + If this does not correspond to your system or settings please + remove the file 'config.mk' from this directory then read the + INSTALL file for help. + + Otherwise, simply type 'make' again to build the library + or 'make refdoc' to build the API reference (the latter needs + python). + ============================================================= + + + If the detected settings correspond to your platform and compiler, + skip to step 5. Note that if your platform is completely alien to + the build system, the detected platform will be `ansi'. + + + 3. Configure the build system for a different compiler + ------------------------------------------------------ + + If the build system correctly detected your platform, but you want + to use a different compiler than the one specified in the summary + (for most platforms, gcc is the default compiler), invoke GNU Make + with + + make setup + + Examples: + + to use Visual C++ on Win32, type: `make setup visualc' + to use Borland C++ on Win32, type `make setup bcc32' + to use Watcom C++ on Win32, type `make setup watcom' + to use Intel C++ on Win32, type `make setup intelc' + to use LCC-Win32 on Win32, type: `make setup lcc' + to use Watcom C++ on OS/2, type `make setup watcom' + to use VisualAge C++ on OS/2, type `make setup visualage' + + The name to use is platform-dependent. The list of + available compilers for your system is available in the file + `builds//detect.mk'. + + If you are satisfied by the new configuration summary, skip to + step 5. + + + 4. Configure the build system for an unknown platform/compiler + -------------------------------------------------------------- + + The auto-detection/setup phase of the build system copies a file + to the current directory under the name `config.mk'. + + For example, on OS/2+gcc, it would simply copy + `builds/os2/os2-gcc.mk' to `./config.mk'. + + If for some reason your platform isn't correctly detected, copy + manually the configuration sub-makefile to `./config.mk' and go to + step 5. + + Note that this file is a sub-Makefile used to specify Make + variables for compiler and linker invocation during the build. + You can easily create your own version from one of the existing + configuration files, then copy it to the current directory under + the name `./config.mk'. + + + 5. Build the library + -------------------- + + The auto-detection/setup phase should have copied a file in the + current directory, called `./config.mk'. This file contains + definitions of various Make variables used to invoke the compiler + and linker during the build. [It has also generated a file called + `ftmodule.h' in the objects directory (which is normally + `/objs/'); please read the file `docs/CUSTOMIZE' for + customization of FreeType.] + + To launch the build, simply invoke GNU Make again: The top + Makefile will detect the configuration file and run the build with + it. + + + Final note + + The build system builds a statically linked library of the font + engine in the `objs' directory. It does _not_ support the build + of DLLs on Windows and OS/2. If you need these, you have to + either use an IDE-specific project file, or follow the + instructions in `INSTALL.ANY' to create your own Makefiles. + +---------------------------------------------------------------------- + +Copyright 2003, 2004, 2005, 2006, 2008 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute +this file you indicate that you have read the license and understand +and accept it fully. + + +--- end of INSTALL.GNU --- diff --git a/docs/INSTALL.MAC b/docs/INSTALL.MAC new file mode 100644 index 0000000..42bb0d8 --- /dev/null +++ b/docs/INSTALL.MAC @@ -0,0 +1,32 @@ +Please follow the instructions in INSTALL.UNIX to install FreeType on +Mac OS X. + +Currently FreeType2 functions based on some deprecated Carbon APIs +return FT_Err_Unimplemented_Feature always, even if FreeType2 is +configured and built on the system that deprecated Carbon APIs are +available. To enable deprecated FreeType2 functions as far as possible, +replace src/base/ftmac.c by builds/mac/ftmac.c. + +Starting with Mac OS X 10.5, gcc defaults the deployment target +to 10.5. In previous versions of Mac OS X, this defaulted to 10.1. +If you want your built binaries to run only on 10.5, this change +does not concern you. If you want them to also run on older versions +of Mac OS X, then you must either set the MACOSX_DEPLOYMENT_TARGET +environment variable or pass -mmacosx-version-min to gcc. You should +specify the oldest version of Mac OS you want the code to run on. +For example, if you use Bourne shell: + + export MACOSX_DEPLOYMENT_TARGET=10.2 + +or, if you use C shell: + + setenv MACOSX_DEPLOYMENT_TARGET 10.2 + +Alternatively, you could pass "-mmacosx-version-min=10.2" to gcc. + +Here the number 10.2 is the lowest version that the built binaries +can run on. In the cases in above, the built binaries will run on +Mac OS X 10.2 and later, but _not_ earlier. If you want to run on +earlier, you have to set lower version, e.g. 10.0. + +For classic Mac OS (Mac OS 7, 8, 9) please refer to builds/mac/README. diff --git a/docs/INSTALL.UNIX b/docs/INSTALL.UNIX new file mode 100644 index 0000000..5dc0764 --- /dev/null +++ b/docs/INSTALL.UNIX @@ -0,0 +1,96 @@ +This document contains instructions on how to build the FreeType +library on Unix systems. This also works for emulations like Cygwin +or MSys on Win32: + + + 1. Ensure that you are using GNU Make + ------------------------------------- + + The FreeType build system _exclusively_ works with GNU Make. You + will not be able to compile the library with the instructions + below using any other alternative (including BSD Make). + + Check that you have GNU make by running the command: + + make -v + + This should dump some text that begins with: + + GNU Make + Copyright (C) Free Software Foundation Inc. + + Note that version 3.80 or higher is *required* or the build will + fail. + + It is also fine to have GNU Make under another name (e.g. 'gmake') + if you use the GNUMAKE variable as described below. + + As a special exception, 'makepp' can also be used to build + FreeType 2. See the file docs/MAKEPP for details. + + + 2. Regenerate the configure script if needed + -------------------------------------------- + + This only applies if you are building a git snapshot or checkout, + *not* if you grabbed the sources of an official release. + + You need to invoke the `autogen.sh' script in the top-level + directory in order to create the `configure' script for your + platform. Normally, this simply means typing: + + sh autogen.sh + + In case of problems, you may need to install or upgrade Automake, + Autoconf or Libtool. See README.git in the top-level directory + for more information. + + + 3. Build and install the library + -------------------------------- + + The following should work on all Unix systems where the `make' + command invokes GNU Make: + + ./configure [options] + make + make install (as root) + + The default installation path is `/usr/local'. It can be changed + with the `--prefix=' option. Example: + + ./configure --prefix=/usr + + When using a different command to invoke GNU Make, use the GNUMAKE + variable. For example, if `gmake' is the command to use on your + system, do something like: + + GNUMAKE=gmake ./configure [options] + gmake + gmake install (as root) + + If this still doesn't work, there must be a problem with your + system (e.g., you are using a very old version of GNU Make). + + It is possible to compile FreeType in a different directory. + Assuming the FreeType source files in directory `/src/freetype' a + compilation in directory `foo' works as follows: + + cd foo + /src/freetype/configure [options] + make + make install + +---------------------------------------------------------------------- + +Copyright 2003, 2004, 2005, 2006, 2007 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute +this file you indicate that you have read the license and understand +and accept it fully. + + +--- end of INSTALL.UNIX --- diff --git a/docs/INSTALL.VMS b/docs/INSTALL.VMS new file mode 100644 index 0000000..994e566 --- /dev/null +++ b/docs/INSTALL.VMS @@ -0,0 +1,62 @@ +How to build the freetype2 library on VMS +----------------------------------------- + +It is actually very straightforward to install the Freetype2 library. +Just execute vms_make.com from the toplevel directory to build the +library. This procedure currently accepts the following options: + +DEBUG + Build the library with debug information and without optimization. + +lopts= + Options to pass to the link command e.g. lopts=/traceback + +ccopt= + Options to pass to the C compiler e.g. ccopt=/float=ieee + +In case you did download the demos, place them in a separate directory +sharing the same toplevel as the directory of Freetype2 and follow the +same instructions as above for the demos from there. The build +process relies on this to figure the location of the Freetype2 include +files. + + +To rebuild the sources it is necessary to have MMS/MMK installed on +the system. + +The library is available in the directory + + [.LIB] + +To compile applications using FreeType 2 you have to define the +logical FREETYPE pointing to the directory + + [.INCLUDE.FREETYPE] + +i.e., if the directory in which this INSTALL.VMS file is located is +$disk:[freetype] then define the logical with + + define freetype $disk:[freetype.include.freetype] + +This version has been tested with Compaq C V6.2-006 on OpenVMS Alpha +V7.2-1. + + + Any problems can be reported to + + Jouk Jansen or + Martin P.J. Zinser + +------------------------------------------------------------------------ + +Copyright 2000, 2004 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute this +file you indicate that you have read the license and understand and +accept it fully. + + +--- end of INSTALL.VMS --- diff --git a/docs/LICENSE.TXT b/docs/LICENSE.TXT new file mode 100644 index 0000000..62945c8 --- /dev/null +++ b/docs/LICENSE.TXT @@ -0,0 +1,34 @@ + +The FreeType 2 font engine is copyrighted work and cannot be used +legally without a software license. In order to make this project +usable to a vast majority of developers, we distribute it under two +mutually exclusive open-source licenses. + +This means that *you* must choose *one* of the two licenses described +below, then obey all its terms and conditions when using FreeType 2 in +any of your projects or products. + + - The FreeType License, found in the file `FTL.TXT', which is similar + to the original BSD license *with* an advertising clause that forces + you to explicitly cite the FreeType project in your product's + documentation. All details are in the license file. This license + is suited to products which don't use the GNU General Public + License. + + Note that this license is compatible to the GNU General Public + License version 3, but not version 2. + + - The GNU General Public License version 2, found in `GPLv2.TXT' (any + later version can be used also), for programs which already use the + GPL. Note that the FTL is incompatible with GPLv2 due to its + advertisement clause. + +The contributed BDF and PCF drivers come with a license similar to that +of the X Window System. It is compatible to the above two licenses (see +file src/bdf/README and src/pcf/README). + +The gzip module uses the zlib license (see src/gzip/zlib.h) which too is +compatible to the above two licenses. + + +--- end of LICENSE.TXT --- diff --git a/docs/MAKEPP b/docs/MAKEPP new file mode 100644 index 0000000..58eaf55 --- /dev/null +++ b/docs/MAKEPP @@ -0,0 +1,5 @@ +As a special exception, FreeType can also be built with the 'makepp' +build tool, available from http://makepp.sourceforge.net. + +Note, however. that you will need at least version 1.19 and pass the +option --norc-substitution to have it work correctly. diff --git a/docs/PROBLEMS b/docs/PROBLEMS new file mode 100644 index 0000000..40bdc35 --- /dev/null +++ b/docs/PROBLEMS @@ -0,0 +1,90 @@ +This file describes various problems that have been encountered in +compiling, installing and running FreeType 2. Suggestions for +additions or other improvements to this file are welcome. + +---------------------------------------------------------------------- + +Running Problems +================ + + +* Some Type 1, Multiple Masters, and CID-keyed PostScript fonts aren't + handled correctly. + +----- + +Of course, there might be bugs in FreeType, but some fonts based on +the PostScript format can't be handled indeed. The reason is that +FreeType doesn't contain a full PostScript interpreter but applies +pattern matching instead. In case a font doesn't follow the standard +structure of the given font format, FreeType fails. A typical example +is Adobe's `Optima' font family which contains extra code to switch +between low and high resolution versions of the glyphs. + +It might be possible to patch FreeType in some situations, though. +Please report failing fonts so that we investigate the problem and set +up a list of such problematic fonts. + + +* Why do identical FreeType versions render differently on different + platforms? + +----- + +Different distributions compile FreeType with different options. The +developer version of a distribution's FreeType package, which is +needed to compile your program against FreeType, includes the file +ftoption.h. Compare each platform's copy of ftoption.h to find the +differences. + + +---------------------------------------------------------------------- + + +Compilation Problems +==================== + + +* I get an `internal compilation error' (ICE) while compiling FreeType + 2.2.1 with Intel C++. + + This has been reported for the following compiler version: + + Intel(R) C++ Compiler for 32-bit applications, + Version 9.0 Build 20050430Z Package ID: W_CC_P_9.0.019 + +----- + +The best solution is to update the compiler to version + + Intel(R) C++ Compiler for 32-bit applications, + Version 9.1 Build 20060323Z Package ID: W_CC_P_9.1.022 + +or newer. If this isn't feasible, apply the following patch. + + +--- src/cache/ftcbasic.c 20 Mar 2006 12:10:24 -0000 1.20 ++++ src/cache/ftcbasic.c.patched 15 May 2006 02:51:02 -0000 +@@ -252,7 +252,7 @@ + */ + + FT_CALLBACK_TABLE_DEF +- const FTC_IFamilyClassRec ftc_basic_image_family_class = ++ FTC_IFamilyClassRec ftc_basic_image_family_class = + { + { + sizeof ( FTC_BasicFamilyRec ), +@@ -266,7 +266,7 @@ + + + FT_CALLBACK_TABLE_DEF +- const FTC_GCacheClassRec ftc_basic_image_cache_class = ++ FTC_GCacheClassRec ftc_basic_image_cache_class = + { + { + ftc_inode_new, + + +---------------------------------------------------------------------- + +--- end of PROBLEMS --- diff --git a/docs/TODO b/docs/TODO new file mode 100644 index 0000000..be60d6f --- /dev/null +++ b/docs/TODO @@ -0,0 +1,40 @@ +Here is a list of items that need to be addressed in FreeType 2 +--------------------------------------------------------------- + +* Implement stem3/counter hints properly in the Postscript hinter. + +* Add CIDCMap support to the CID driver. + +* Add track kerning support to the PFR driver. + +* Add kerning (AFM file) support to the CID driver. + + +Here is a list of bugs which should be handled +---------------------------------------------- + +Other bugs have been registered at the savannah bugzilla of FreeType. + +* CID driver: + Handle the case where a CID font has a top-level font matrix also + (see PLRM, 5.11.3, Type 0 CIDFonts). Since CID_FaceInfoRec lacks + a font_matrix entry we have to directly apply it to all subfont + matrices. + +* CID driver: + Use top-level font matrix entry for setting the upem value, not the + entries in the FDarray. If absent, use 1000. + +------------------------------------------------------------------------ + +Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute this +file you indicate that you have read the license and understand and +accept it fully. + + +--- end of TODO --- diff --git a/docs/VERSION.DLL b/docs/VERSION.DLL new file mode 100644 index 0000000..1dfc8c1 --- /dev/null +++ b/docs/VERSION.DLL @@ -0,0 +1,148 @@ +Due to our use of `libtool' to generate and install the FreeType 2 +libraries on Unix systems, as well as other historical events, it is +generally very difficult to know precisely which release of the font +engine is installed on a given system. + +This file tries to explain why and to document ways to properly detect +FreeType on Unix. + + +1. Version and Release numbers +------------------------------ + +For each new public release of FreeType 2, there are generally *three* +distinct `version' numbers to consider: + + * The official FreeType 2 release number, like 2.0.9 or 2.1.3. + + * The libtool (and Unix) specific version number, like 9.2.3. This is + what `freetype-config --version' returns. + + * The platform-specific shared object number, used for example when + the library is installed as `/usr/lib/libfreetype.so.6.3.2'. + +The platform-specific number is, unsurprisingly, platform-specific and +varies with the operating system you are using (several variants of +Linux, FreeBSD, Solaris, etc.). You should thus _never_ use it, even +for simple tests. + +The libtool-specific number does not equal the release number but is +tied to it. + +The release number is available at *compile* time through the following +macros defined in FT_FREETYPE_H: + + - FREETYPE_MAJOR: major release number + - FREETYPE_MINOR: minor release number + - FREETYPE_PATCH: patch release number + +See below for a small autoconf fragment. + +The release number is also available at *runtime* through the +`FT_Library_Version' API. Unfortunately, this one wasn't available or +working correctly before the 2.1.3 official release. + + +2. History +---------- + +The following table gives, for each official release, the corresponding +libtool number, as well as the shared object number found on _most_ +systems, but not all of them: + + + release libtool so + ------------------------------- + 2.4.9 14.1.8 6.8.1 + 2.4.8 14.0.8 6.8.0 + 2.4.7 13.2.7 6.7.2 + 2.4.6 13.1.7 6.7.1 + 2.4.5 13.0.7 6.7.0 + 2.4.4 12.2.6 6.6.2 + 2.4.3 12.1.6 6.6.1 + 2.4.2 12.0.6 6.6.0 + 2.4.1 11.1.5 6.5.1 + 2.4.0 11.0.5 6.5.0 + 2.3.12 10.0.4 6.4.0 + 2.3.11 9.22.3 6.3.22 + 2.3.10 9.21.3 6.3.21 + 2.3.9 9.20.3 6.3.20 + 2.3.8 9.19.3 6.3.19 + 2.3.7 9.18.3 6.3.18 + 2.3.6 9.17.3 6.3.17 + 2.3.5 9.16.3 6.3.16 + 2.3.4 9.15.3 6.3.15 + 2.3.3 9.14.3 6.3.14 + 2.3.2 9.13.3 6.3.13 + 2.3.1 9.12.3 6.3.12 + 2.3.0 9.11.3 6.3.11 + 2.2.1 9.10.3 6.3.10 + 2.2.0 9.9.3 6.3.9 + 2.1.10 9.8.3 6.3.8 + 2.1.9 9.7.3 6.3.7 + 2.1.8 9.6.3 6.3.6 + 2.1.7 9.5.3 6.3.5 + 2.1.6 9.5.3 6.3.5 + 2.1.5 9.4.3 6.3.4 + 2.1.4 9.3.3 6.3.3 + 2.1.3 9.2.3 6.3.2 + 2.1.2 9.1.3 6.3.1 + 2.1.1 9.0.3 ? + 2.1.0 8.0.2 ? + 2.0.9 9.0.3 ? + 2.0.8 8.0.2 ? + 2.0.4 7.0.1 ? + 2.0.1 6.1.0 ? + +The libtool numbers are a bit inconsistent due to the library's history: + + - 2.1.0 was created as a development branch from 2.0.8 (hence the same + libtool numbers). + + - 2.0.9 was a bug-fix release of the `stable' branch, and we + incorrectly increased its libtool number. + + - 2.1.4 was a development version, however it was stable enough to be + the basis of the 2.2.0 release. + + +3. Autoconf Code Fragment +------------------------- + +Lars Clausen contributed the following autoconf fragment to detect which +version of FreeType is installed on a system. This one tests for a +version that is at least 2.0.9; you should change it to check against +other release numbers. + + + AC_MSG_CHECKING([whether FreeType version is 2.0.9 or higher]) + old_CPPFLAGS="$CPPFLAGS" + CPPFLAGS=`freetype-config --cflags` + AC_TRY_CPP([ + +#include +#include FT_FREETYPE_H +#if (FREETYPE_MAJOR*1000 + FREETYPE_MINOR)*1000 + FREETYPE_PATCH < 2000009 +#error Freetype version too low. +#endif + ], + [AC_MSG_RESULT(yes) + FREETYPE_LIBS=`freetype-config --libs` + AC_SUBST(FREETYPE_LIBS) + AC_DEFINE(HAVE_FREETYPE,1,[Define if you have the FreeType2 library]) + CPPFLAGS="$old_CPPFLAGS"], + [AC_MSG_ERROR([Need FreeType library version 2.0.9 or higher])]) + +------------------------------------------------------------------------ + +Copyright 2002-2012 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute this +file you indicate that you have read the license and understand and +accept it fully. + + +--- end of VERSION.DLL --- diff --git a/docs/formats.txt b/docs/formats.txt new file mode 100644 index 0000000..827c894 --- /dev/null +++ b/docs/formats.txt @@ -0,0 +1,174 @@ +This file contains a list of various font formats. It gives the +reference document and whether it is supported in FreeType 2. + + + file type: + The only special case is `MAC'; on older Mac OS versions, a `file' + is stored as a data and a resource fork, this is, within two + separate data chunks. In all other cases, the font data is stored + in a single file. + + wrapper format: + The format used to represent the font data. In the table below it + is used only if the font format differs. Possible values are `SFNT' + (binary), `PS' (a text header, followed by binary or text data), + `LZW' (compressed with either `gzip' or `compress'), and + `BZ2' (compressed with `bzip2`). + + font format: + How the font is to be accessed, possibly after converting the file + type and wrapper format into a generic form. Bitmap formats are + `BDF', `PCF', and one form of `WINFNT'; all others are vector + formats. + + font type: + Sub-formats of the font format. `SBIT' and `MACSBIT' are bitmap + formats, `MM' and `VAR' support optical axes. + + glyph access: + If not specified, the glyph access is `standard' to the font format. + Values are `CID' for CID-keyed fonts, `SYNTHETIC' for fonts which + are modified versions of other fonts by means of a transformation + matrix, `COLLECTION' for collecting multiple fonts (sharing most of + the data) into a single file, and `TYPE_0' for PS fonts which are to + be accessed in a tree-like structure. + + FreeType driver: + The module in the FreeType library which handles the specific font + format. A missing entry means that FreeType doesn't support the + font format (yet). + + +Please send additions and/or corrections to wl@gnu.org or to the +FreeType developer's list at freetype-devel@nongnu.org (for subscribers +only). If you can provide a font example for a format which isn't +supported yet please send a mail too. + + +file wrapper font font glyph FreeType reference +type format format type access driver documents +---------------------------------------------------------------------------- + +--- --- BDF --- --- bdf 5005.BDF_Spec.pdf, X11 + + +--- SFNT PS TYPE_1 --- type1 Type 1 GX Font Format + (for the Mac) [3] +MAC SFNT PS TYPE_1 --- type1 Type 1 GX Font Format + (for the Mac) [3] +--- SFNT PS TYPE_1 CID cid 5180.sfnt.pdf (for the Mac) + [3] +MAC SFNT PS TYPE_1 CID cid 5180.sfnt.pdf (for the Mac) + [3] +--- SFNT PS CFF --- cff OT spec, 5176.CFF.pdf + (`OTTO' format) +MAC SFNT PS CFF --- cff OT spec, 5176.CFF.pdf + (`OTTO' format) +--- SFNT PS CFF CID cff OT spec, 5176.CFF.pdf +MAC SFNT PS CFF CID cff OT spec, 5176.CFF.pdf +--- SFNT PS CFF SYNTHETIC --- OT spec, 5176.CFF.pdf +MAC SFNT PS CFF SYNTHETIC --- OT spec, 5176.CFF.pdf +--- SFNT TT SBIT --- sfnt XFree86 (bitmaps only; + with `head' table) +--- SFNT TT MACSBIT --- sfnt OT spec (for the Mac; + bitmaps only; `bhed' table) +MAC SFNT TT MACSBIT --- sfnt OT spec (for the Mac; + bitmaps only; `bhed' table) +--- SFNT TT --- --- truetype OT spec (`normal' TT font) +MAC SFNT TT --- --- truetype OT spec (`normal' TT font) +MAC SFNT TT VAR --- truetype GX spec (`?var' tables) +--- SFNT TT --- COLLECTION truetype OT spec (this can't be CFF) +MAC SFNT TT --- COLLECTION truetype OT spec (this can't be CFF) + + +--- --- PS TYPE_1 --- type1 T1_SPEC.pdf + (`normal' Type 1 font) +MAC --- PS TYPE_1 --- type1 T1_SPEC.pdf + (`normal' Type 1 font) +--- --- PS TYPE_1 CID cid PLRM.pdf (CID Font Type 0; + Type 9 font) +--- --- PS MM --- type1 5015.Type1_Supp.pdf + (Multiple Masters) +--- --- PS CFF --- cff 5176.CFF.pdf (`pure' CFF) +--- --- PS CFF CID cff 5176.CFF.pdf (`pure' CFF) +--- --- PS CFF SYNTHETIC --- 5176.CFF.pdf (`pure' CFF) +--- PS PS CFF --- --- PLRM.pdf (Type 2) [1] +--- PS PS CFF CID --- PLRM.pdf (Type 2) [1] +--- PS PS CFF SYNTHETIC --- PLRM.pdf (Type 2) [1] +--- --- PS --- TYPE_0 --- PLRM.pdf +--- --- PS TYPE_3 --- --- PLRM.pdf (never supported) +--- --- PS TYPE_3 CID --- PLRM.pdf (CID Font Type 1; + Type 10 font; never supported) +--- PS PS TYPE_14 --- --- PLRM.pdf (Chameleon font; + Type 14 font; never supported?) +--- --- PS TYPE_32 CID --- PLRM.pdf (CID Font Type 4; + Type 32 font; never supported?) +--- PS TT --- --- type42 5012.Type42_Spec.pdf + (Type 42 font) +--- PS TT --- CID --- PLRM.pdf (CID Font Type 2; + Type 11 font) + + +--- ? ? CEF ? cff ? + + +--- --- PCF --- --- pcf X11 [4] +--- LZW PCF --- --- pcf X11 [4] +--- BZ2 PCF --- --- pcf X11 [4] + + +--- --- PFR PFR0 --- pfr [2] +--- --- PFR PFR1 --- --- (undocumented, proprietary; + probably never supported) + + +--- --- WINFNT --- --- winfonts MS Windows 3 Developer's Notes +--- --- WINFNT VECTOR --- --- MS Windows 3 Developer's Notes + + +[1] Support should be rather simple since this is identical to `CFF' but + in a PS wrapper. + +[2] Official PFR specification: + + http://www.bitstream.com/categories/developer/truedoc/pfrspec.html + http://www.bitstream.com/categories/developer/truedoc/pfrspec1.2.pdf + + The syntax of the auxiliary data is not defined there, but is + partially defined in MHP 1.0.3 (also called ETSI TS 101812 V1.3.1) + section 7.4. + + http://www.etsi.org/ + http://webapp.etsi.org/workprogram/Report_WorkItem.asp?WKI_ID=18799 + + (free registration required). + +[3] Support is rudimentary currently; some tables are not loaded yet. + +[4] See + + THE X WINDOW SYSTEM SERVER: X VERSION 11, RELEASE 5 + Elias Israel, Erik Fortune, Digital Press, 1992 + ISBN 1-55558-096-3 + + for a specification given in Appendix D on pgs. 436-450. However, + this information might be out of date; unfortunately, there is no + PCF specification available online, and this book is out of print. + George Williams deduced the font format from the X11 sources and + documented it for his FontForge font editor: + + http://fontforge.sourceforge.net/pcf-format.html + +------------------------------------------------------------------------ + +Copyright 2004, 2005, 2008, 2009, 2010 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute this +file you indicate that you have read the license and understand and +accept it fully. + + +--- end of formats.txt --- diff --git a/docs/raster.txt b/docs/raster.txt new file mode 100644 index 0000000..95d9e24 --- /dev/null +++ b/docs/raster.txt @@ -0,0 +1,635 @@ + + How FreeType's rasterizer work + + by David Turner + + Revised 2007-Feb-01 + + +This file is an attempt to explain the internals of the FreeType +rasterizer. The rasterizer is of quite general purpose and could +easily be integrated into other programs. + + + I. Introduction + + II. Rendering Technology + 1. Requirements + 2. Profiles and Spans + a. Sweeping the Shape + b. Decomposing Outlines into Profiles + c. The Render Pool + d. Computing Profiles Extents + e. Computing Profiles Coordinates + f. Sweeping and Sorting the Spans + + +I. Introduction +=============== + + A rasterizer is a library in charge of converting a vectorial + representation of a shape into a bitmap. The FreeType rasterizer + has been originally developed to render the glyphs found in + TrueType files, made up of segments and second-order Béziers. + Meanwhile it has been extended to render third-order Bézier curves + also. This document is an explanation of its design and + implementation. + + While these explanations start from the basics, a knowledge of + common rasterization techniques is assumed. + + +II. Rendering Technology +======================== + +1. Requirements +--------------- + + We assume that all scaling, rotating, hinting, etc., has been + already done. The glyph is thus described by a list of points in + the device space. + + - All point coordinates are in the 26.6 fixed float format. The + used orientation is: + + + ^ y + | reference orientation + | + *----> x + 0 + + + `26.6' means that 26 bits are used for the integer part of a + value and 6 bits are used for the fractional part. + Consequently, the `distance' between two neighbouring pixels is + 64 `units' (1 unit = 1/64th of a pixel). + + Note that, for the rasterizer, pixel centers are located at + integer coordinates. The TrueType bytecode interpreter, + however, assumes that the lower left edge of a pixel (which is + taken to be a square with a length of 1 unit) has integer + coordinates. + + + ^ y ^ y + | | + | (1,1) | (0.5,0.5) + +-----------+ +-----+-----+ + | | | | | + | | | | | + | | | o-----+-----> x + | | | (0,0) | + | | | | + o-----------+-----> x +-----------+ + (0,0) (-0.5,-0.5) + + TrueType bytecode interpreter FreeType rasterizer + + + A pixel line in the target bitmap is called a `scanline'. + + - A glyph is usually made of several contours, also called + `outlines'. A contour is simply a closed curve that delimits an + outer or inner region of the glyph. It is described by a series + of successive points of the points table. + + Each point of the glyph has an associated flag that indicates + whether it is `on' or `off' the curve. Two successive `on' + points indicate a line segment joining the two points. + + One `off' point amidst two `on' points indicates a second-degree + (conic) Bézier parametric arc, defined by these three points + (the `off' point being the control point, and the `on' ones the + start and end points). Similarly, a third-degree (cubic) Bézier + curve is described by four points (two `off' control points + between two `on' points). + + Finally, for second-order curves only, two successive `off' + points forces the rasterizer to create, during rendering, an + `on' point amidst them, at their exact middle. This greatly + facilitates the definition of successive Bézier arcs. + + The parametric form of a second-order Bézier curve is: + + P(t) = (1-t)^2*P1 + 2*t*(1-t)*P2 + t^2*P3 + + (P1 and P3 are the end points, P2 the control point.) + + The parametric form of a third-order Bézier curve is: + + P(t) = (1-t)^3*P1 + 3*t*(1-t)^2*P2 + 3*t^2*(1-t)*P3 + t^3*P4 + + (P1 and P4 are the end points, P2 and P3 the control points.) + + For both formulae, t is a real number in the range [0..1]. + + Note that the rasterizer does not use these formulae directly. + They exhibit, however, one very useful property of Bézier arcs: + Each point of the curve is a weighted average of the control + points. + + As all weights are positive and always sum up to 1, whatever the + value of t, each arc point lies within the triangle (polygon) + defined by the arc's three (four) control points. + + In the following, only second-order curves are discussed since + rasterization of third-order curves is completely identical. + + Here some samples for second-order curves. + + + * # on curve + * off curve + __---__ + #-__ _-- -_ + --__ _- - + --__ # \ + --__ # + -# + Two `on' points + Two `on' points and one `off' point + between them + + * + # __ Two `on' points with two `off' + \ - - points between them. The point + \ / \ marked `0' is the middle of the + - 0 \ `off' points, and is a `virtual + -_ _- # on' point where the curve passes. + -- It does not appear in the point + * list. + + +2. Profiles and Spans +--------------------- + + The following is a basic explanation of the _kind_ of computations + made by the rasterizer to build a bitmap from a vector + representation. Note that the actual implementation is slightly + different, due to performance tuning and other factors. + + However, the following ideas remain in the same category, and are + more convenient to understand. + + + a. Sweeping the Shape + + The best way to fill a shape is to decompose it into a number of + simple horizontal segments, then turn them on in the target + bitmap. These segments are called `spans'. + + __---__ + _-- -_ + _- - + - \ + / \ + / \ + | \ + + __---__ Example: filling a shape + _----------_ with spans. + _-------------- + ----------------\ + /-----------------\ This is typically done from the top + / \ to the bottom of the shape, in a + | | \ movement called a `sweep'. + V + + __---__ + _----------_ + _-------------- + ----------------\ + /-----------------\ + /-------------------\ + |---------------------\ + + + In order to draw a span, the rasterizer must compute its + coordinates, which are simply the x coordinates of the shape's + contours, taken on the y scanlines. + + + /---/ |---| Note that there are usually + /---/ |---| several spans per scanline. + | /---/ |---| + | /---/_______|---| When rendering this shape to the + V /----------------| current scanline y, we must + /-----------------| compute the x values of the + a /----| |---| points a, b, c, and d. + - - - * * - - - - * * - - y - + / / b c| |d + + + /---/ |---| + /---/ |---| And then turn on the spans a-b + /---/ |---| and c-d. + /---/_______|---| + /----------------| + /-----------------| + a /----| |---| + - - - ####### - - - - ##### - - y - + / / b c| |d + + + b. Decomposing Outlines into Profiles + + For each scanline during the sweep, we need the following + information: + + o The number of spans on the current scanline, given by the + number of shape points intersecting the scanline (these are + the points a, b, c, and d in the above example). + + o The x coordinates of these points. + + x coordinates are computed before the sweep, in a phase called + `decomposition' which converts the glyph into *profiles*. + + Put it simply, a `profile' is a contour's portion that can only + be either ascending or descending, i.e., it is monotonic in the + vertical direction (we also say y-monotonic). There is no such + thing as a horizontal profile, as we shall see. + + Here are a few examples: + + + this square + 1 2 + ---->---- is made of two + | | | | + | | profiles | | + ^ v ^ + v + | | | | + | | | | + ----<---- + + up down + + + this triangle + + P2 1 2 + + |\ is made of two | \ + ^ | \ \ | \ + | | \ \ profiles | \ | + | | \ v ^ | \ | + | \ | | + \ v + | \ | | \ + P1 ---___ \ ---___ \ + ---_\ ---_ \ + <--__ P3 up down + + + + A more general contour can be made of more than two profiles: + + __ ^ + / | / ___ / | + / | / | / | / | + | | / / => | v / / + | | | | | | ^ | + ^ | |___| | | ^ + | + | + v + | | | v | | + | | | up | + |___________| | down | + + <-- up down + + + Successive profiles are always joined by horizontal segments + that are not part of the profiles themselves. + + For the rasterizer, a profile is simply an *array* that + associates one horizontal *pixel* coordinate to each bitmap + *scanline* crossed by the contour's section containing the + profile. Note that profiles are *oriented* up or down along the + glyph's original flow orientation. + + In other graphics libraries, profiles are also called `edges' or + `edgelists'. + + + c. The Render Pool + + FreeType has been designed to be able to run well on _very_ + light systems, including embedded systems with very few memory. + + A render pool will be allocated once; the rasterizer uses this + pool for all its needs by managing this memory directly in it. + The algorithms that are used for profile computation make it + possible to use the pool as a simple growing heap. This means + that this memory management is actually quite easy and faster + than any kind of malloc()/free() combination. + + Moreover, we'll see later that the rasterizer is able, when + dealing with profiles too large and numerous to lie all at once + in the render pool, to immediately decompose recursively the + rendering process into independent sub-tasks, each taking less + memory to be performed (see `sub-banding' below). + + The render pool doesn't need to be large. A 4KByte pool is + enough for nearly all renditions, though nearly 100% slower than + a more comfortable 16KByte or 32KByte pool (that was tested with + complex glyphs at sizes over 500 pixels). + + + d. Computing Profiles Extents + + Remember that a profile is an array, associating a _scanline_ to + the x pixel coordinate of its intersection with a contour. + + Though it's not exactly how the FreeType rasterizer works, it is + convenient to think that we need a profile's height before + allocating it in the pool and computing its coordinates. + + The profile's height is the number of scanlines crossed by the + y-monotonic section of a contour. We thus need to compute these + sections from the vectorial description. In order to do that, + we are obliged to compute all (local and global) y extrema of + the glyph (minima and maxima). + + + P2 For instance, this triangle has only + two y-extrema, which are simply + |\ + | \ P2.y as a vertical maximum + | \ P3.y as a vertical minimum + | \ + | \ P1.y is not a vertical extremum (though + | \ it is a horizontal minimum, which we + P1 ---___ \ don't need). + ---_\ + P3 + + + Note that the extrema are expressed in pixel units, not in + scanlines. The triangle's height is certainly (P3.y-P2.y+1) + pixel units, but its profiles' heights are computed in + scanlines. The exact conversion is simple: + + - min scanline = FLOOR ( min y ) + - max scanline = CEILING( max y ) + + A problem arises with Bézier Arcs. While a segment is always + necessarily y-monotonic (i.e., flat, ascending, or descending), + which makes extrema computations easy, the ascent of an arc can + vary between its control points. + + + P2 + * + # on curve + * off curve + __-x--_ + _-- -_ + P1 _- - A non y-monotonic Bézier arc. + # \ + - The arc goes from P1 to P3. + \ + \ P3 + # + + + We first need to be able to easily detect non-monotonic arcs, + according to their control points. I will state here, without + proof, that the monotony condition can be expressed as: + + P1.y <= P2.y <= P3.y for an ever-ascending arc + + P1.y >= P2.y >= P3.y for an ever-descending arc + + with the special case of + + P1.y = P2.y = P3.y where the arc is said to be `flat'. + + As you can see, these conditions can be very easily tested. + They are, however, extremely important, as any arc that does not + satisfy them necessarily contains an extremum. + + Note also that a monotonic arc can contain an extremum too, + which is then one of its `on' points: + + + P1 P2 + #---__ * P1P2P3 is ever-descending, but P1 + -_ is an y-extremum. + - + ---_ \ + -> \ + \ P3 + # + + + Let's go back to our previous example: + + + P2 + * + # on curve + * off curve + __-x--_ + _-- -_ + P1 _- - A non-y-monotonic Bézier arc. + # \ + - Here we have + \ P2.y >= P1.y && + \ P3 P2.y >= P3.y (!) + # + + + We need to compute the vertical maximum of this arc to be able + to compute a profile's height (the point marked by an `x'). The + arc's equation indicates that a direct computation is possible, + but we rely on a different technique, which use will become + apparent soon. + + Bézier arcs have the special property of being very easily + decomposed into two sub-arcs, which are themselves Bézier arcs. + Moreover, it is easy to prove that there is at most one vertical + extremum on each Bézier arc (for second-degree curves; similar + conditions can be found for third-order arcs). + + For instance, the following arc P1P2P3 can be decomposed into + two sub-arcs Q1Q2Q3 and R1R2R3: + + + P2 + * + # on curve + * off curve + + + original Bézier arc P1P2P3. + __---__ + _-- --_ + _- -_ + - - + / \ + / \ + # # + P1 P3 + + + + P2 + * + + + + Q3 Decomposed into two subarcs + Q2 R2 Q1Q2Q3 and R1R2R3 + * __-#-__ * + _-- --_ + _- R1 -_ Q1 = P1 R3 = P3 + - - Q2 = (P1+P2)/2 R2 = (P2+P3)/2 + / \ + / \ Q3 = R1 = (Q2+R2)/2 + # # + Q1 R3 Note that Q2, R2, and Q3=R1 + are on a single line which is + tangent to the curve. + + + We have then decomposed a non-y-monotonic Bézier curve into two + smaller sub-arcs. Note that in the above drawing, both sub-arcs + are monotonic, and that the extremum is then Q3=R1. However, in + a more general case, only one sub-arc is guaranteed to be + monotonic. Getting back to our former example: + + + Q2 + * + + __-x--_ R1 + _-- #_ + Q1 _- Q3 - R2 + # \ * + - + \ + \ R3 + # + + + Here, we see that, though Q1Q2Q3 is still non-monotonic, R1R2R3 + is ever descending: We thus know that it doesn't contain the + extremum. We can then re-subdivide Q1Q2Q3 into two sub-arcs and + go on recursively, stopping when we encounter two monotonic + subarcs, or when the subarcs become simply too small. + + We will finally find the vertical extremum. Note that the + iterative process of finding an extremum is called `flattening'. + + + e. Computing Profiles Coordinates + + Once we have the height of each profile, we are able to allocate + it in the render pool. The next task is to compute coordinates + for each scanline. + + In the case of segments, the computation is straightforward, + using the Euclidean algorithm (also known as Bresenham). + However, for Bézier arcs, the job is a little more complicated. + + We assume that all Béziers that are part of a profile are the + result of flattening the curve, which means that they are all + y-monotonic (ascending or descending, and never flat). We now + have to compute the intersections of arcs with the profile's + scanlines. One way is to use a similar scheme to flattening + called `stepping'. + + + Consider this arc, going from P1 to + --------------------- P3. Suppose that we need to + compute its intersections with the + drawn scanlines. As already + --------------------- mentioned this can be done + directly, but the involved + * P2 _---# P3 algorithm is far too slow. + ------------- _-- -- + _- + _/ Instead, it is still possible to + ---------/----------- use the decomposition property in + / the same recursive way, i.e., + | subdivide the arc into subarcs + ------|-------------- until these get too small to cross + | more than one scanline! + | + -----|--------------- This is very easily done using a + | rasterizer-managed stack of + | subarcs. + # P1 + + + f. Sweeping and Sorting the Spans + + Once all our profiles have been computed, we begin the sweep to + build (and fill) the spans. + + As both the TrueType and Type 1 specifications use the winding + fill rule (but with opposite directions), we place, on each + scanline, the present profiles in two separate lists. + + One list, called the `left' one, only contains ascending + profiles, while the other `right' list contains the descending + profiles. + + As each glyph is made of closed curves, a simple geometric + property ensures that the two lists contain the same number of + elements. + + Creating spans is thus straightforward: + + 1. We sort each list in increasing horizontal order. + + 2. We pair each value of the left list with its corresponding + value in the right list. + + + / / | | For example, we have here + / / | | four profiles. Two of + >/ / | | | them are ascending (1 & + 1// / ^ | | | 2 3), while the two others + // // 3| | | v are descending (2 & 4). + / //4 | | | On the given scanline, + a / /< | | the left list is (1,3), + - - - *-----* - - - - *---* - - y - and the right one is + / / b c| |d (4,2) (sorted). + + There are then two spans, joining + 1 to 4 (i.e. a-b) and 3 to 2 + (i.e. c-d)! + + + Sorting doesn't necessarily take much time, as in 99 cases out + of 100, the lists' order is kept from one scanline to the next. + We can thus implement it with two simple singly-linked lists, + sorted by a classic bubble-sort, which takes a minimum amount of + time when the lists are already sorted. + + A previous version of the rasterizer used more elaborate + structures, like arrays to perform `faster' sorting. It turned + out that this old scheme is not faster than the one described + above. + + Once the spans have been `created', we can simply draw them in + the target bitmap. + +------------------------------------------------------------------------ + +Copyright 2003, 2007 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute this +file you indicate that you have read the license and understand and +accept it fully. + + +--- end of raster.txt --- + +Local Variables: +coding: utf-8 +End: diff --git a/docs/reference/.gitignore b/docs/reference/.gitignore new file mode 100644 index 0000000..2d19fc7 --- /dev/null +++ b/docs/reference/.gitignore @@ -0,0 +1 @@ +*.html diff --git a/docs/reference/README b/docs/reference/README new file mode 100644 index 0000000..51b04d6 --- /dev/null +++ b/docs/reference/README @@ -0,0 +1,5 @@ +After saying `make refdoc' this directory contains the FreeType API +reference. You need python to make this target. + +This also works with Jam: Just type `jam refdoc' in the main directory. + diff --git a/docs/release b/docs/release new file mode 100644 index 0000000..28a8235 --- /dev/null +++ b/docs/release @@ -0,0 +1,209 @@ +How to prepare a new release +---------------------------- + +. include/freetype/freetype.h: Update FREETYPE_MAJOR, FREETYPE_MINOR, + and FREETYPE_PATCH. + +. Update version numbers in all files where necessary (for example, do + a grep for both `2.3.1' and `231' for release 2.3.1). + +. builds/unix/configure.raw: Update `version_info'. + +. docs/CHANGES: Document differences to last release. + +. README: Update. + +. docs/VERSION.DLL: Document changed `version_info'. + +. ChangeLog: Announce new release (both in the freetype2 and + freetype2-demos modules). + +. Clone the git archive to another directory with + + git clone -l -s . ../freetype2.test + + or something like this and run + + make distclean; make devel; make + make distclean; make devel; make multi + make distclean; make devel CC=g++; make CC=g++ + make distclean; make devel CC=g++; make multi CC=g++ + + sh autogen.sh + make distclean; ./configure; make + make distclean; ./configure CC=g++; make + + in the cloned repository to test compilation with both gcc and g++. + +. Test C++ compilation for freetype2-demos too (using `git clone' as + above). + +. Run src/tools/chktrcmp.py and check that there are no undefined + trace_XXXX macros. + +. Tag the git repositories (freetype2, freetype2-demos) with + + git tag VER- -m "" -u + + and push the tags with + + git push --tags + + TODO: Tag the home page CVS on savannah.nongnu.org. + +. Say `make dist' in both the freetype2 and freetype2-demos modules + to generate the .tar.gz, .tar.bz2, and .zip files. + +. Create the doc bundles (freetype-doc-.tar.gz, + freetype-doc-.tar.bz2, ftdoc.zip). This is + everything below + + freetype.freedesktop.org:/srv/freetype.freedesktop.org/www/freetype2/docs/ + + except the `reference' subdirectory. Do *not* use option `-l' from + zip! + +. Run the following script (with updated `$VERSION', `$SAVANNAH_USER', + and $SOURCEFORGE_USER variables) to sign and upload the bundles to + both Savannah and SourceForge. The signing code has been taken from + the `gnupload' script (part of the automake bundle). + + #!/bin/sh + + VERSION=2.4.8 + SAVANNAH_USER=wl + SOURCEFORGE_USER=wlemb + + ##################################################################### + + GPG='/usr/bin/gpg --batch --no-tty' + + version=`echo $VERSION | sed "s/\\.//g"` + + FREETYPE_PACKAGES="freetype-$VERSION.tar.gz \ + freetype-$VERSION.tar.bz2 \ + ft$version.zip" + FT2DEMOS_PACKAGES="ft2demos-$VERSION.tar.gz \ + ft2demos-$VERSION.tar.bz2 \ + ftdmo$version.zip" + FTDOC_PACKAGES="freetype-doc-$VERSION.tar.gz \ + freetype-doc-$VERSION.tar.bz2 \ + ftdoc$version.zip" + + PACKAGE_LIST="$FREETYPE_PACKAGES \ + $FT2DEMOS_PACKAGES \ + $FTDOC_PACKAGES" + + set -e + unset passphrase + + PATH=/empty echo -n "Enter GPG passphrase: " + stty -echo + read -r passphrase + stty echo + echo + + for f in $PACKAGE_LIST; do + if test ! -f $f; then + echo "$0: Cannot find \`$f'" 1>&2 + exit 1 + else + : + fi + done + + for f in $PACKAGE_LIST; do + echo "Signing $f..." + rm -f $f.sig + echo $passphrase | $GPG --passphrase-fd 0 -ba -o $f.sig $f + done + + FREETYPE_SIGNATURES= + for i in $FREETYPE_PACKAGES; do + FREETYPE_SIGNATURES="$FREETYPE_SIGNATURES $i.sig" + done + + FT2DEMOS_SIGNATURES= + for i in $FT2DEMOS_PACKAGES; do + FT2DEMOS_SIGNATURES="$FT2DEMOS_SIGNATURES $i.sig" + done + + FTDOC_SIGNATURES= + for i in $FTDOC_PACKAGES; do + FTDOC_SIGNATURES="$FTDOC_SIGNATURES $i.sig" + done + + SIGNATURE_LIST="$FREETYPE_SIGNATURES \ + $FT2DEMOS_SIGNATURES \ + $FTDOC_SIGNATURES" + + scp $PACKAGE_LIST $SIGNATURE_LIST \ + $SAVANNAH_USER@dl.sv.nongnu.org:/releases/freetype/ + + rsync -avP -e ssh $FREETYPE_PACKAGES $FREETYPE_SIGNATURES \ + $SOURCEFORGE_USER,freetype@frs.sf.net:/home/frs/project/f/fr/freetype/freetype2/$VERSION/ + rsync -avP -e ssh $FT2DEMOS_PACKAGES $FT2DEMOS_SIGNATURES \ + $SOURCEFORGE_USER,freetype@frs.sf.net:/home/frs/project/f/fr/freetype/freetype-demos/$VERSION/ + rsync -avP -e ssh $FTDOC_PACKAGES $FTDOC_SIGNATURES \ + $SOURCEFORGE_USER,freetype@frs.sf.net:/home/frs/project/f/fr/freetype/freetype-docs/$VERSION/ + + # EOF + +. Prepare a README for SourceForge and upload it with the following + script (with updated `$VERSION' and $SOURCEFORGE_USER variables). + + #!/bin/sh + + VERSION=2.4.8 + SOURCEFORGE_USER=wlemb + + ##################################################################### + + rsync -avP -e ssh README \ + $SOURCEFORGE_USER,freetype@frs.sf.net:/home/frs/project/f/fr/freetype/freetype2/$VERSION/ + + # EOF + +. On SourceForge, tag the just uploaded `ftXXXX.zip' and + `freetype-XXX.tar.bz2' files as the default files to download for + `Windows' and `Others', respectively. + +. Copy the reference files (generated by `make dist') to + + freetype.freedesktop.org:/srv/freetype.freedesktop.org/www/freetype2/docs/reference + + and + + shell.sf.net:/home/groups/f/fr/freetype/htdocs/freetype2/docs/reference + + TODO: Create FreeType home page CVS on savannah.nongnu.org and + update it accordingly. + + Write script to automatically do this. + + Mirror FreeType's savannah home page everywhere. + +. Update + + freetype.freedesktop.org:/srv/freetype.freedesktop.org/www/index2.html + + and copy it to + + shell.sf.net:/home/groups/f/fr/freetype/htdocs/index2.html + +. Announce new release on freetype-announce@nongnu.org and to relevant + newsgroups. + +---------------------------------------------------------------------- + +Copyright 2003, 2005-2007, 2009, 2011 by +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute +this file you indicate that you have read the license and understand +and accept it fully. + + +--- end of release --- diff --git a/ft2demos/ftbench b/ft2demos/ftbench new file mode 100755 index 0000000..a53d002 Binary files /dev/null and b/ft2demos/ftbench differ diff --git a/ft2demos/ftdiff b/ft2demos/ftdiff new file mode 100755 index 0000000..e25e76a Binary files /dev/null and b/ft2demos/ftdiff differ diff --git a/ft2demos/ftdump b/ft2demos/ftdump new file mode 100755 index 0000000..45a3572 Binary files /dev/null and b/ft2demos/ftdump differ diff --git a/ft2demos/ftgamma b/ft2demos/ftgamma new file mode 100755 index 0000000..46015e8 Binary files /dev/null and b/ft2demos/ftgamma differ diff --git a/ft2demos/ftgrid b/ft2demos/ftgrid new file mode 100755 index 0000000..a11e773 Binary files /dev/null and b/ft2demos/ftgrid differ diff --git a/ft2demos/ftlint b/ft2demos/ftlint new file mode 100755 index 0000000..d6482b2 Binary files /dev/null and b/ft2demos/ftlint differ diff --git a/ft2demos/ftmulti b/ft2demos/ftmulti new file mode 100755 index 0000000..3e48474 Binary files /dev/null and b/ft2demos/ftmulti differ diff --git a/ft2demos/ftstring b/ft2demos/ftstring new file mode 100755 index 0000000..a02606f Binary files /dev/null and b/ft2demos/ftstring differ diff --git a/ft2demos/ftview b/ft2demos/ftview new file mode 100755 index 0000000..91e725d Binary files /dev/null and b/ft2demos/ftview differ diff --git a/include/freetype/config/ftconfig.h b/include/freetype/config/ftconfig.h new file mode 100644 index 0000000..5628569 --- /dev/null +++ b/include/freetype/config/ftconfig.h @@ -0,0 +1,563 @@ +/***************************************************************************/ +/* */ +/* ftconfig.h */ +/* */ +/* ANSI-specific configuration file (specification only). */ +/* */ +/* Copyright 1996-2004, 2006-2008, 2010-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This header file contains a number of macro definitions that are used */ + /* by the rest of the engine. Most of the macros here are automatically */ + /* determined at compile time, and you should not need to change it to */ + /* port FreeType, except to compile the library with a non-ANSI */ + /* compiler. */ + /* */ + /* Note however that if some specific modifications are needed, we */ + /* advise you to place a modified copy in your build directory. */ + /* */ + /* The build directory is usually `freetype/builds/', and */ + /* contains system-specific files that are always included first when */ + /* building the library. */ + /* */ + /* This ANSI version should stay in `include/freetype/config'. */ + /* */ + /*************************************************************************/ + +#ifndef __FTCONFIG_H__ +#define __FTCONFIG_H__ + +#include +#include FT_CONFIG_OPTIONS_H +#include FT_CONFIG_STANDARD_LIBRARY_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* PLATFORM-SPECIFIC CONFIGURATION MACROS */ + /* */ + /* These macros can be toggled to suit a specific system. The current */ + /* ones are defaults used to compile FreeType in an ANSI C environment */ + /* (16bit compilers are also supported). Copy this file to your own */ + /* `freetype/builds/' directory, and edit it to port the engine. */ + /* */ + /*************************************************************************/ + + + /* There are systems (like the Texas Instruments 'C54x) where a `char' */ + /* has 16 bits. ANSI C says that sizeof(char) is always 1. Since an */ + /* `int' has 16 bits also for this system, sizeof(int) gives 1 which */ + /* is probably unexpected. */ + /* */ + /* `CHAR_BIT' (defined in limits.h) gives the number of bits in a */ + /* `char' type. */ + +#ifndef FT_CHAR_BIT +#define FT_CHAR_BIT CHAR_BIT +#endif + + + /* The size of an `int' type. */ +#if FT_UINT_MAX == 0xFFFFUL +#define FT_SIZEOF_INT (16 / FT_CHAR_BIT) +#elif FT_UINT_MAX == 0xFFFFFFFFUL +#define FT_SIZEOF_INT (32 / FT_CHAR_BIT) +#elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL +#define FT_SIZEOF_INT (64 / FT_CHAR_BIT) +#else +#error "Unsupported size of `int' type!" +#endif + + /* The size of a `long' type. A five-byte `long' (as used e.g. on the */ + /* DM642) is recognized but avoided. */ +#if FT_ULONG_MAX == 0xFFFFFFFFUL +#define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) +#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL +#define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) +#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL +#define FT_SIZEOF_LONG (64 / FT_CHAR_BIT) +#else +#error "Unsupported size of `long' type!" +#endif + + + /* FT_UNUSED is a macro used to indicate that a given parameter is not */ + /* used -- this is only used to get rid of unpleasant compiler warnings */ +#ifndef FT_UNUSED +#define FT_UNUSED( arg ) ( (arg) = (arg) ) +#endif + + + /*************************************************************************/ + /* */ + /* AUTOMATIC CONFIGURATION MACROS */ + /* */ + /* These macros are computed from the ones defined above. Don't touch */ + /* their definition, unless you know precisely what you are doing. No */ + /* porter should need to mess with them. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Mac support */ + /* */ + /* This is the only necessary change, so it is defined here instead */ + /* providing a new configuration file. */ + /* */ +#if defined( __APPLE__ ) || ( defined( __MWERKS__ ) && defined( macintosh ) ) + /* no Carbon frameworks for 64bit 10.4.x */ + /* AvailabilityMacros.h is available since Mac OS X 10.2, */ + /* so guess the system version by maximum errno before inclusion */ +#include +#ifdef ECANCELED /* defined since 10.2 */ +#include "AvailabilityMacros.h" +#endif +#if defined( __LP64__ ) && \ + ( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 ) +#undef FT_MACINTOSH +#endif + +#elif defined( __SC__ ) || defined( __MRC__ ) + /* Classic MacOS compilers */ +#include "ConditionalMacros.h" +#if TARGET_OS_MAC +#define FT_MACINTOSH 1 +#endif + +#endif + + + /*************************************************************************/ + /* */ + /*
      */ + /* basic_types */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* FT_Int16 */ + /* */ + /* */ + /* A typedef for a 16bit signed integer type. */ + /* */ + typedef signed short FT_Int16; + + + /*************************************************************************/ + /* */ + /* */ + /* FT_UInt16 */ + /* */ + /* */ + /* A typedef for a 16bit unsigned integer type. */ + /* */ + typedef unsigned short FT_UInt16; + + /* */ + + + /* this #if 0 ... #endif clause is for documentation purposes */ +#if 0 + + /*************************************************************************/ + /* */ + /* */ + /* FT_Int32 */ + /* */ + /* */ + /* A typedef for a 32bit signed integer type. The size depends on */ + /* the configuration. */ + /* */ + typedef signed XXX FT_Int32; + + + /*************************************************************************/ + /* */ + /* */ + /* FT_UInt32 */ + /* */ + /* A typedef for a 32bit unsigned integer type. The size depends on */ + /* the configuration. */ + /* */ + typedef unsigned XXX FT_UInt32; + + /* */ + +#endif + +#if FT_SIZEOF_INT == (32 / FT_CHAR_BIT) + + typedef signed int FT_Int32; + typedef unsigned int FT_UInt32; + +#elif FT_SIZEOF_LONG == (32 / FT_CHAR_BIT) + + typedef signed long FT_Int32; + typedef unsigned long FT_UInt32; + +#else +#error "no 32bit type found -- please check your configuration files" +#endif + + + /* look up an integer type that is at least 32 bits */ +#if FT_SIZEOF_INT >= (32 / FT_CHAR_BIT) + + typedef int FT_Fast; + typedef unsigned int FT_UFast; + +#elif FT_SIZEOF_LONG >= (32 / FT_CHAR_BIT) + + typedef long FT_Fast; + typedef unsigned long FT_UFast; + +#endif + + + /* determine whether we have a 64-bit int type for platforms without */ + /* Autoconf */ +#if FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) + + /* FT_LONG64 must be defined if a 64-bit type is available */ +#define FT_LONG64 +#define FT_INT64 long + +#elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */ + + /* this compiler provides the __int64 type */ +#define FT_LONG64 +#define FT_INT64 __int64 + +#elif defined( __BORLANDC__ ) /* Borland C++ */ + + /* XXXX: We should probably check the value of __BORLANDC__ in order */ + /* to test the compiler version. */ + + /* this compiler provides the __int64 type */ +#define FT_LONG64 +#define FT_INT64 __int64 + +#elif defined( __WATCOMC__ ) /* Watcom C++ */ + + /* Watcom doesn't provide 64-bit data types */ + +#elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */ + +#define FT_LONG64 +#define FT_INT64 long long int + +#elif defined( __GNUC__ ) + + /* GCC provides the `long long' type */ +#define FT_LONG64 +#define FT_INT64 long long int + +#endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */ + + + /*************************************************************************/ + /* */ + /* A 64-bit data type will create compilation problems if you compile */ + /* in strict ANSI mode. To avoid them, we disable its use if __STDC__ */ + /* is defined. You can however ignore this rule by defining the */ + /* FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */ + /* */ +#if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 ) + +#ifdef __STDC__ + + /* undefine the 64-bit macros in strict ANSI compilation mode */ +#undef FT_LONG64 +#undef FT_INT64 + +#endif /* __STDC__ */ + +#endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */ + + +#define FT_BEGIN_STMNT do { +#define FT_END_STMNT } while ( 0 ) +#define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT + + +#ifndef FT_CONFIG_OPTION_NO_ASSEMBLER + /* Provide assembler fragments for performance-critical functions. */ + /* These must be defined `static __inline__' with GCC. */ + +#if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */ +#define FT_MULFIX_ASSEMBLER FT_MulFix_arm + + /* documentation is in freetype.h */ + + static __inline FT_Int32 + FT_MulFix_arm( FT_Int32 a, + FT_Int32 b ) + { + register FT_Int32 t, t2; + + + __asm + { + smull t2, t, b, a /* (lo=t2,hi=t) = a*b */ + mov a, t, asr #31 /* a = (hi >> 31) */ + add a, a, #0x8000 /* a += 0x8000 */ + adds t2, t2, a /* t2 += a */ + adc t, t, #0 /* t += carry */ + mov a, t2, lsr #16 /* a = t2 >> 16 */ + orr a, a, t, lsl #16 /* a |= t << 16 */ + } + return a; + } + +#endif /* __CC_ARM || __ARMCC__ */ + + +#ifdef __GNUC__ + +#if defined( __arm__ ) && !defined( __thumb__ ) && \ + !( defined( __CC_ARM ) || defined( __ARMCC__ ) ) +#define FT_MULFIX_ASSEMBLER FT_MulFix_arm + + /* documentation is in freetype.h */ + + static __inline__ FT_Int32 + FT_MulFix_arm( FT_Int32 a, + FT_Int32 b ) + { + register FT_Int32 t, t2; + + + __asm__ __volatile__ ( + "smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */ + "mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */ + "add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */ + "adds %1, %1, %0\n\t" /* %1 += %0 */ + "adc %2, %2, #0\n\t" /* %2 += carry */ + "mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */ + "orr %0, %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */ + : "=r"(a), "=&r"(t2), "=&r"(t) + : "r"(a), "r"(b) ); + return a; + } + +#endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */ + +#if defined( __i386__ ) +#define FT_MULFIX_ASSEMBLER FT_MulFix_i386 + + /* documentation is in freetype.h */ + + static __inline__ FT_Int32 + FT_MulFix_i386( FT_Int32 a, + FT_Int32 b ) + { + register FT_Int32 result; + + + __asm__ __volatile__ ( + "imul %%edx\n" + "movl %%edx, %%ecx\n" + "sarl $31, %%ecx\n" + "addl $0x8000, %%ecx\n" + "addl %%ecx, %%eax\n" + "adcl $0, %%edx\n" + "shrl $16, %%eax\n" + "shll $16, %%edx\n" + "addl %%edx, %%eax\n" + : "=a"(result), "=d"(b) + : "a"(a), "d"(b) + : "%ecx", "cc" ); + return result; + } + +#endif /* i386 */ + +#endif /* __GNUC__ */ + + +#ifdef _MSC_VER /* Visual C++ */ + +#ifdef _M_IX86 + +#define FT_MULFIX_ASSEMBLER FT_MulFix_i386 + + /* documentation is in freetype.h */ + + static __inline FT_Int32 + FT_MulFix_i386( FT_Int32 a, + FT_Int32 b ) + { + register FT_Int32 result; + + __asm + { + mov eax, a + mov edx, b + imul edx + mov ecx, edx + sar ecx, 31 + add ecx, 8000h + add eax, ecx + adc edx, 0 + shr eax, 16 + shl edx, 16 + add eax, edx + mov result, eax + } + return result; + } + +#endif /* _M_IX86 */ + +#endif /* _MSC_VER */ + +#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */ + + +#ifdef FT_CONFIG_OPTION_INLINE_MULFIX +#ifdef FT_MULFIX_ASSEMBLER +#define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER +#endif +#endif + + +#ifdef FT_MAKE_OPTION_SINGLE_OBJECT + +#define FT_LOCAL( x ) static x +#define FT_LOCAL_DEF( x ) static x + +#else + +#ifdef __cplusplus +#define FT_LOCAL( x ) extern "C" x +#define FT_LOCAL_DEF( x ) extern "C" x +#else +#define FT_LOCAL( x ) extern x +#define FT_LOCAL_DEF( x ) x +#endif + +#endif /* FT_MAKE_OPTION_SINGLE_OBJECT */ + + +#ifndef FT_BASE + +#ifdef __cplusplus +#define FT_BASE( x ) extern "C" x +#else +#define FT_BASE( x ) extern x +#endif + +#endif /* !FT_BASE */ + + +#ifndef FT_BASE_DEF + +#ifdef __cplusplus +#define FT_BASE_DEF( x ) x +#else +#define FT_BASE_DEF( x ) x +#endif + +#endif /* !FT_BASE_DEF */ + + +#ifndef FT_EXPORT + +#ifdef __cplusplus +#define FT_EXPORT( x ) extern "C" x +#else +#define FT_EXPORT( x ) extern x +#endif + +#endif /* !FT_EXPORT */ + + +#ifndef FT_EXPORT_DEF + +#ifdef __cplusplus +#define FT_EXPORT_DEF( x ) extern "C" x +#else +#define FT_EXPORT_DEF( x ) extern x +#endif + +#endif /* !FT_EXPORT_DEF */ + + +#ifndef FT_EXPORT_VAR + +#ifdef __cplusplus +#define FT_EXPORT_VAR( x ) extern "C" x +#else +#define FT_EXPORT_VAR( x ) extern x +#endif + +#endif /* !FT_EXPORT_VAR */ + + /* The following macros are needed to compile the library with a */ + /* C++ compiler and with 16bit compilers. */ + /* */ + + /* This is special. Within C++, you must specify `extern "C"' for */ + /* functions which are used via function pointers, and you also */ + /* must do that for structures which contain function pointers to */ + /* assure C linkage -- it's not possible to have (local) anonymous */ + /* functions which are accessed by (global) function pointers. */ + /* */ + /* */ + /* FT_CALLBACK_DEF is used to _define_ a callback function. */ + /* */ + /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ + /* contains pointers to callback functions. */ + /* */ + /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */ + /* that contains pointers to callback functions. */ + /* */ + /* */ + /* Some 16bit compilers have to redefine these macros to insert */ + /* the infamous `_cdecl' or `__fastcall' declarations. */ + /* */ +#ifndef FT_CALLBACK_DEF +#ifdef __cplusplus +#define FT_CALLBACK_DEF( x ) extern "C" x +#else +#define FT_CALLBACK_DEF( x ) static x +#endif +#endif /* FT_CALLBACK_DEF */ + +#ifndef FT_CALLBACK_TABLE +#ifdef __cplusplus +#define FT_CALLBACK_TABLE extern "C" +#define FT_CALLBACK_TABLE_DEF extern "C" +#else +#define FT_CALLBACK_TABLE extern +#define FT_CALLBACK_TABLE_DEF /* nothing */ +#endif +#endif /* FT_CALLBACK_TABLE */ + + +FT_END_HEADER + + +#endif /* __FTCONFIG_H__ */ + + +/* END */ diff --git a/include/freetype/config/ftheader.h b/include/freetype/config/ftheader.h new file mode 100644 index 0000000..2a7b8c4 --- /dev/null +++ b/include/freetype/config/ftheader.h @@ -0,0 +1,793 @@ +/***************************************************************************/ +/* */ +/* ftheader.h */ +/* */ +/* Build macros of the FreeType 2 library. */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#ifndef __FT_HEADER_H__ +#define __FT_HEADER_H__ + + + /*@***********************************************************************/ + /* */ + /* */ + /* FT_BEGIN_HEADER */ + /* */ + /* */ + /* This macro is used in association with @FT_END_HEADER in header */ + /* files to ensure that the declarations within are properly */ + /* encapsulated in an `extern "C" { .. }' block when included from a */ + /* C++ compiler. */ + /* */ +#ifdef __cplusplus +#define FT_BEGIN_HEADER extern "C" { +#else +#define FT_BEGIN_HEADER /* nothing */ +#endif + + + /*@***********************************************************************/ + /* */ + /* */ + /* FT_END_HEADER */ + /* */ + /* */ + /* This macro is used in association with @FT_BEGIN_HEADER in header */ + /* files to ensure that the declarations within are properly */ + /* encapsulated in an `extern "C" { .. }' block when included from a */ + /* C++ compiler. */ + /* */ +#ifdef __cplusplus +#define FT_END_HEADER } +#else +#define FT_END_HEADER /* nothing */ +#endif + + + /*************************************************************************/ + /* */ + /* Aliases for the FreeType 2 public and configuration files. */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /*
      */ + /* header_file_macros */ + /* */ + /* */ + /* Header File Macros */ + /* */ + /* <Abstract> */ + /* Macro definitions used to #include specific header files. */ + /* */ + /* <Description> */ + /* The following macros are defined to the name of specific */ + /* FreeType~2 header files. They can be used directly in #include */ + /* statements as in: */ + /* */ + /* { */ + /* #include FT_FREETYPE_H */ + /* #include FT_MULTIPLE_MASTERS_H */ + /* #include FT_GLYPH_H */ + /* } */ + /* */ + /* There are several reasons why we are now using macros to name */ + /* public header files. The first one is that such macros are not */ + /* limited to the infamous 8.3~naming rule required by DOS (and */ + /* `FT_MULTIPLE_MASTERS_H' is a lot more meaningful than `ftmm.h'). */ + /* */ + /* The second reason is that it allows for more flexibility in the */ + /* way FreeType~2 is installed on a given system. */ + /* */ + /*************************************************************************/ + + + /* configuration files */ + + /************************************************************************* + * + * @macro: + * FT_CONFIG_CONFIG_H + * + * @description: + * A macro used in #include statements to name the file containing + * FreeType~2 configuration data. + * + */ +#ifndef FT_CONFIG_CONFIG_H +#define FT_CONFIG_CONFIG_H <freetype/config/ftconfig.h> +#endif + + + /************************************************************************* + * + * @macro: + * FT_CONFIG_STANDARD_LIBRARY_H + * + * @description: + * A macro used in #include statements to name the file containing + * FreeType~2 interface to the standard C library functions. + * + */ +#ifndef FT_CONFIG_STANDARD_LIBRARY_H +#define FT_CONFIG_STANDARD_LIBRARY_H <freetype/config/ftstdlib.h> +#endif + + + /************************************************************************* + * + * @macro: + * FT_CONFIG_OPTIONS_H + * + * @description: + * A macro used in #include statements to name the file containing + * FreeType~2 project-specific configuration options. + * + */ +#ifndef FT_CONFIG_OPTIONS_H +#define FT_CONFIG_OPTIONS_H <freetype/config/ftoption.h> +#endif + + + /************************************************************************* + * + * @macro: + * FT_CONFIG_MODULES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * list of FreeType~2 modules that are statically linked to new library + * instances in @FT_Init_FreeType. + * + */ +#ifndef FT_CONFIG_MODULES_H +#define FT_CONFIG_MODULES_H <freetype/config/ftmodule.h> +#endif + + /* */ + + /* public headers */ + + /************************************************************************* + * + * @macro: + * FT_FREETYPE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * base FreeType~2 API. + * + */ +#define FT_FREETYPE_H <freetype/freetype.h> + + + /************************************************************************* + * + * @macro: + * FT_ERRORS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * list of FreeType~2 error codes (and messages). + * + * It is included by @FT_FREETYPE_H. + * + */ +#define FT_ERRORS_H <freetype/fterrors.h> + + + /************************************************************************* + * + * @macro: + * FT_MODULE_ERRORS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * list of FreeType~2 module error offsets (and messages). + * + */ +#define FT_MODULE_ERRORS_H <freetype/ftmoderr.h> + + + /************************************************************************* + * + * @macro: + * FT_SYSTEM_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 interface to low-level operations (i.e., memory management + * and stream i/o). + * + * It is included by @FT_FREETYPE_H. + * + */ +#define FT_SYSTEM_H <freetype/ftsystem.h> + + + /************************************************************************* + * + * @macro: + * FT_IMAGE_H + * + * @description: + * A macro used in #include statements to name the file containing type + * definitions related to glyph images (i.e., bitmaps, outlines, + * scan-converter parameters). + * + * It is included by @FT_FREETYPE_H. + * + */ +#define FT_IMAGE_H <freetype/ftimage.h> + + + /************************************************************************* + * + * @macro: + * FT_TYPES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * basic data types defined by FreeType~2. + * + * It is included by @FT_FREETYPE_H. + * + */ +#define FT_TYPES_H <freetype/fttypes.h> + + + /************************************************************************* + * + * @macro: + * FT_LIST_H + * + * @description: + * A macro used in #include statements to name the file containing the + * list management API of FreeType~2. + * + * (Most applications will never need to include this file.) + * + */ +#define FT_LIST_H <freetype/ftlist.h> + + + /************************************************************************* + * + * @macro: + * FT_OUTLINE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * scalable outline management API of FreeType~2. + * + */ +#define FT_OUTLINE_H <freetype/ftoutln.h> + + + /************************************************************************* + * + * @macro: + * FT_SIZES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * API which manages multiple @FT_Size objects per face. + * + */ +#define FT_SIZES_H <freetype/ftsizes.h> + + + /************************************************************************* + * + * @macro: + * FT_MODULE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * module management API of FreeType~2. + * + */ +#define FT_MODULE_H <freetype/ftmodapi.h> + + + /************************************************************************* + * + * @macro: + * FT_RENDER_H + * + * @description: + * A macro used in #include statements to name the file containing the + * renderer module management API of FreeType~2. + * + */ +#define FT_RENDER_H <freetype/ftrender.h> + + + /************************************************************************* + * + * @macro: + * FT_TYPE1_TABLES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * types and API specific to the Type~1 format. + * + */ +#define FT_TYPE1_TABLES_H <freetype/t1tables.h> + + + /************************************************************************* + * + * @macro: + * FT_TRUETYPE_IDS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * enumeration values which identify name strings, languages, encodings, + * etc. This file really contains a _large_ set of constant macro + * definitions, taken from the TrueType and OpenType specifications. + * + */ +#define FT_TRUETYPE_IDS_H <freetype/ttnameid.h> + + + /************************************************************************* + * + * @macro: + * FT_TRUETYPE_TABLES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * types and API specific to the TrueType (as well as OpenType) format. + * + */ +#define FT_TRUETYPE_TABLES_H <freetype/tttables.h> + + + /************************************************************************* + * + * @macro: + * FT_TRUETYPE_TAGS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of TrueType four-byte `tags' which identify blocks in + * SFNT-based font formats (i.e., TrueType and OpenType). + * + */ +#define FT_TRUETYPE_TAGS_H <freetype/tttags.h> + + + /************************************************************************* + * + * @macro: + * FT_BDF_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of an API which accesses BDF-specific strings from a + * face. + * + */ +#define FT_BDF_H <freetype/ftbdf.h> + + + /************************************************************************* + * + * @macro: + * FT_CID_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of an API which access CID font information from a + * face. + * + */ +#define FT_CID_H <freetype/ftcid.h> + + + /************************************************************************* + * + * @macro: + * FT_GZIP_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of an API which supports gzip-compressed files. + * + */ +#define FT_GZIP_H <freetype/ftgzip.h> + + + /************************************************************************* + * + * @macro: + * FT_LZW_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of an API which supports LZW-compressed files. + * + */ +#define FT_LZW_H <freetype/ftlzw.h> + + + /************************************************************************* + * + * @macro: + * FT_BZIP2_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of an API which supports bzip2-compressed files. + * + */ +#define FT_BZIP2_H <freetype/ftbzip2.h> + + + /************************************************************************* + * + * @macro: + * FT_WINFONTS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * definitions of an API which supports Windows FNT files. + * + */ +#define FT_WINFONTS_H <freetype/ftwinfnt.h> + + + /************************************************************************* + * + * @macro: + * FT_GLYPH_H + * + * @description: + * A macro used in #include statements to name the file containing the + * API of the optional glyph management component. + * + */ +#define FT_GLYPH_H <freetype/ftglyph.h> + + + /************************************************************************* + * + * @macro: + * FT_BITMAP_H + * + * @description: + * A macro used in #include statements to name the file containing the + * API of the optional bitmap conversion component. + * + */ +#define FT_BITMAP_H <freetype/ftbitmap.h> + + + /************************************************************************* + * + * @macro: + * FT_BBOX_H + * + * @description: + * A macro used in #include statements to name the file containing the + * API of the optional exact bounding box computation routines. + * + */ +#define FT_BBOX_H <freetype/ftbbox.h> + + + /************************************************************************* + * + * @macro: + * FT_CACHE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * API of the optional FreeType~2 cache sub-system. + * + */ +#define FT_CACHE_H <freetype/ftcache.h> + + + /************************************************************************* + * + * @macro: + * FT_CACHE_IMAGE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * `glyph image' API of the FreeType~2 cache sub-system. + * + * It is used to define a cache for @FT_Glyph elements. You can also + * use the API defined in @FT_CACHE_SMALL_BITMAPS_H if you only need to + * store small glyph bitmaps, as it will use less memory. + * + * This macro is deprecated. Simply include @FT_CACHE_H to have all + * glyph image-related cache declarations. + * + */ +#define FT_CACHE_IMAGE_H FT_CACHE_H + + + /************************************************************************* + * + * @macro: + * FT_CACHE_SMALL_BITMAPS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * `small bitmaps' API of the FreeType~2 cache sub-system. + * + * It is used to define a cache for small glyph bitmaps in a relatively + * memory-efficient way. You can also use the API defined in + * @FT_CACHE_IMAGE_H if you want to cache arbitrary glyph images, + * including scalable outlines. + * + * This macro is deprecated. Simply include @FT_CACHE_H to have all + * small bitmaps-related cache declarations. + * + */ +#define FT_CACHE_SMALL_BITMAPS_H FT_CACHE_H + + + /************************************************************************* + * + * @macro: + * FT_CACHE_CHARMAP_H + * + * @description: + * A macro used in #include statements to name the file containing the + * `charmap' API of the FreeType~2 cache sub-system. + * + * This macro is deprecated. Simply include @FT_CACHE_H to have all + * charmap-based cache declarations. + * + */ +#define FT_CACHE_CHARMAP_H FT_CACHE_H + + + /************************************************************************* + * + * @macro: + * FT_MAC_H + * + * @description: + * A macro used in #include statements to name the file containing the + * Macintosh-specific FreeType~2 API. The latter is used to access + * fonts embedded in resource forks. + * + * This header file must be explicitly included by client applications + * compiled on the Mac (note that the base API still works though). + * + */ +#define FT_MAC_H <freetype/ftmac.h> + + + /************************************************************************* + * + * @macro: + * FT_MULTIPLE_MASTERS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * optional multiple-masters management API of FreeType~2. + * + */ +#define FT_MULTIPLE_MASTERS_H <freetype/ftmm.h> + + + /************************************************************************* + * + * @macro: + * FT_SFNT_NAMES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * optional FreeType~2 API which accesses embedded `name' strings in + * SFNT-based font formats (i.e., TrueType and OpenType). + * + */ +#define FT_SFNT_NAMES_H <freetype/ftsnames.h> + + + /************************************************************************* + * + * @macro: + * FT_OPENTYPE_VALIDATE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * optional FreeType~2 API which validates OpenType tables (BASE, GDEF, + * GPOS, GSUB, JSTF). + * + */ +#define FT_OPENTYPE_VALIDATE_H <freetype/ftotval.h> + + + /************************************************************************* + * + * @macro: + * FT_GX_VALIDATE_H + * + * @description: + * A macro used in #include statements to name the file containing the + * optional FreeType~2 API which validates TrueTypeGX/AAT tables (feat, + * mort, morx, bsln, just, kern, opbd, trak, prop). + * + */ +#define FT_GX_VALIDATE_H <freetype/ftgxval.h> + + + /************************************************************************* + * + * @macro: + * FT_PFR_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which accesses PFR-specific data. + * + */ +#define FT_PFR_H <freetype/ftpfr.h> + + + /************************************************************************* + * + * @macro: + * FT_STROKER_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which provides functions to stroke outline paths. + */ +#define FT_STROKER_H <freetype/ftstroke.h> + + + /************************************************************************* + * + * @macro: + * FT_SYNTHESIS_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which performs artificial obliquing and emboldening. + */ +#define FT_SYNTHESIS_H <freetype/ftsynth.h> + + + /************************************************************************* + * + * @macro: + * FT_XFREE86_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which provides functions specific to the XFree86 and + * X.Org X11 servers. + */ +#define FT_XFREE86_H <freetype/ftxf86.h> + + + /************************************************************************* + * + * @macro: + * FT_TRIGONOMETRY_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which performs trigonometric computations (e.g., + * cosines and arc tangents). + */ +#define FT_TRIGONOMETRY_H <freetype/fttrigon.h> + + + /************************************************************************* + * + * @macro: + * FT_LCD_FILTER_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which performs color filtering for subpixel rendering. + */ +#define FT_LCD_FILTER_H <freetype/ftlcdfil.h> + + + /************************************************************************* + * + * @macro: + * FT_UNPATENTED_HINTING_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which performs color filtering for subpixel rendering. + */ +#define FT_UNPATENTED_HINTING_H <freetype/ttunpat.h> + + + /************************************************************************* + * + * @macro: + * FT_INCREMENTAL_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which performs color filtering for subpixel rendering. + */ +#define FT_INCREMENTAL_H <freetype/ftincrem.h> + + + /************************************************************************* + * + * @macro: + * FT_GASP_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which returns entries from the TrueType GASP table. + */ +#define FT_GASP_H <freetype/ftgasp.h> + + + /************************************************************************* + * + * @macro: + * FT_ADVANCES_H + * + * @description: + * A macro used in #include statements to name the file containing the + * FreeType~2 API which returns individual and ranged glyph advances. + */ +#define FT_ADVANCES_H <freetype/ftadvanc.h> + + + /* */ + +#define FT_ERROR_DEFINITIONS_H <freetype/fterrdef.h> + + + /* The internals of the cache sub-system are no longer exposed. We */ + /* default to FT_CACHE_H at the moment just in case, but we know of */ + /* no rogue client that uses them. */ + /* */ +#define FT_CACHE_MANAGER_H <freetype/ftcache.h> +#define FT_CACHE_INTERNAL_MRU_H <freetype/ftcache.h> +#define FT_CACHE_INTERNAL_MANAGER_H <freetype/ftcache.h> +#define FT_CACHE_INTERNAL_CACHE_H <freetype/ftcache.h> +#define FT_CACHE_INTERNAL_GLYPH_H <freetype/ftcache.h> +#define FT_CACHE_INTERNAL_IMAGE_H <freetype/ftcache.h> +#define FT_CACHE_INTERNAL_SBITS_H <freetype/ftcache.h> + + +#define FT_INCREMENTAL_H <freetype/ftincrem.h> + +#define FT_TRUETYPE_UNPATENTED_H <freetype/ttunpat.h> + + + /* + * Include internal headers definitions from <freetype/internal/...> + * only when building the library. + */ +#ifdef FT2_BUILD_LIBRARY +#define FT_INTERNAL_INTERNAL_H <freetype/internal/internal.h> +#include FT_INTERNAL_INTERNAL_H +#endif /* FT2_BUILD_LIBRARY */ + + +#endif /* __FT2_BUILD_H__ */ + + +/* END */ diff --git a/include/freetype/config/ftmodule.h b/include/freetype/config/ftmodule.h new file mode 100644 index 0000000..76d271a --- /dev/null +++ b/include/freetype/config/ftmodule.h @@ -0,0 +1,32 @@ +/* + * This file registers the FreeType modules compiled into the library. + * + * If you use GNU make, this file IS NOT USED! Instead, it is created in + * the objects directory (normally `<topdir>/objs/') based on information + * from `<topdir>/modules.cfg'. + * + * Please read `docs/INSTALL.ANY' and `docs/CUSTOMIZE' how to compile + * FreeType without GNU make. + * + */ + +FT_USE_MODULE( FT_Module_Class, autofit_module_class ) +FT_USE_MODULE( FT_Driver_ClassRec, tt_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, t1_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, cff_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, t1cid_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, pfr_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, t42_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, winfnt_driver_class ) +FT_USE_MODULE( FT_Driver_ClassRec, pcf_driver_class ) +FT_USE_MODULE( FT_Module_Class, psaux_module_class ) +FT_USE_MODULE( FT_Module_Class, psnames_module_class ) +FT_USE_MODULE( FT_Module_Class, pshinter_module_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_raster1_renderer_class ) +FT_USE_MODULE( FT_Module_Class, sfnt_module_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_smooth_renderer_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_smooth_lcd_renderer_class ) +FT_USE_MODULE( FT_Renderer_Class, ft_smooth_lcdv_renderer_class ) +FT_USE_MODULE( FT_Driver_ClassRec, bdf_driver_class ) + +/* EOF */ diff --git a/include/freetype/config/ftoption.h b/include/freetype/config/ftoption.h new file mode 100644 index 0000000..041e24a --- /dev/null +++ b/include/freetype/config/ftoption.h @@ -0,0 +1,805 @@ +/***************************************************************************/ +/* */ +/* ftoption.h */ +/* */ +/* User-selectable configuration macros (specification only). */ +/* */ +/* Copyright 1996-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTOPTION_H__ +#define __FTOPTION_H__ + + +#include <ft2build.h> + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /* */ + /* USER-SELECTABLE CONFIGURATION MACROS */ + /* */ + /* This file contains the default configuration macro definitions for */ + /* a standard build of the FreeType library. There are three ways to */ + /* use this file to build project-specific versions of the library: */ + /* */ + /* - You can modify this file by hand, but this is not recommended in */ + /* cases where you would like to build several versions of the */ + /* library from a single source directory. */ + /* */ + /* - You can put a copy of this file in your build directory, more */ + /* precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD' */ + /* is the name of a directory that is included _before_ the FreeType */ + /* include path during compilation. */ + /* */ + /* The default FreeType Makefiles and Jamfiles use the build */ + /* directory `builds/<system>' by default, but you can easily change */ + /* that for your own projects. */ + /* */ + /* - Copy the file <ft2build.h> to `$BUILD/ft2build.h' and modify it */ + /* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to */ + /* locate this file during the build. For example, */ + /* */ + /* #define FT_CONFIG_OPTIONS_H <myftoptions.h> */ + /* #include <freetype/config/ftheader.h> */ + /* */ + /* will use `$BUILD/myftoptions.h' instead of this file for macro */ + /* definitions. */ + /* */ + /* Note also that you can similarly pre-define the macro */ + /* FT_CONFIG_MODULES_H used to locate the file listing of the modules */ + /* that are statically linked to the library at compile time. By */ + /* default, this file is <freetype/config/ftmodule.h>. */ + /* */ + /* We highly recommend using the third method whenever possible. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** G E N E R A L F R E E T Y P E 2 C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Uncomment the line below if you want to activate sub-pixel rendering */ + /* (a.k.a. LCD rendering, or ClearType) in this build of the library. */ + /* */ + /* Note that this feature is covered by several Microsoft patents */ + /* and should not be activated in any default build of the library. */ + /* */ + /* This macro has no impact on the FreeType API, only on its */ + /* _implementation_. For example, using FT_RENDER_MODE_LCD when calling */ + /* FT_Render_Glyph still generates a bitmap that is 3 times wider than */ + /* the original size in case this macro isn't defined; however, each */ + /* triplet of subpixels has R=G=B. */ + /* */ + /* This is done to allow FreeType clients to run unmodified, forcing */ + /* them to display normal gray-level anti-aliased glyphs. */ + /* */ +/* #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ + + + /*************************************************************************/ + /* */ + /* Many compilers provide a non-ANSI 64-bit data type that can be used */ + /* by FreeType to speed up some computations. However, this will create */ + /* some problems when compiling the library in strict ANSI mode. */ + /* */ + /* For this reason, the use of 64-bit integers is normally disabled when */ + /* the __STDC__ macro is defined. You can however disable this by */ + /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */ + /* */ + /* For most compilers, this will only create compilation warnings when */ + /* building the library. */ + /* */ + /* ObNote: The compiler-specific 64-bit integers are detected in the */ + /* file `ftconfig.h' either statically or through the */ + /* `configure' script on supported platforms. */ + /* */ +#undef FT_CONFIG_OPTION_FORCE_INT64 + + + /*************************************************************************/ + /* */ + /* If this macro is defined, do not try to use an assembler version of */ + /* performance-critical functions (e.g. FT_MulFix). You should only do */ + /* that to verify that the assembler function works properly, or to */ + /* execute benchmark tests of the various implementations. */ +/* #define FT_CONFIG_OPTION_NO_ASSEMBLER */ + + + /*************************************************************************/ + /* */ + /* If this macro is defined, try to use an inlined assembler version of */ + /* the `FT_MulFix' function, which is a `hotspot' when loading and */ + /* hinting glyphs, and which should be executed as fast as possible. */ + /* */ + /* Note that if your compiler or CPU is not supported, this will default */ + /* to the standard and portable implementation found in `ftcalc.c'. */ + /* */ +#define FT_CONFIG_OPTION_INLINE_MULFIX + + + /*************************************************************************/ + /* */ + /* LZW-compressed file support. */ + /* */ + /* FreeType now handles font files that have been compressed with the */ + /* `compress' program. This is mostly used to parse many of the PCF */ + /* files that come with various X11 distributions. The implementation */ + /* uses NetBSD's `zopen' to partially uncompress the file on the fly */ + /* (see src/lzw/ftgzip.c). */ + /* */ + /* Define this macro if you want to enable this `feature'. */ + /* */ +#define FT_CONFIG_OPTION_USE_LZW + + + /*************************************************************************/ + /* */ + /* Gzip-compressed file support. */ + /* */ + /* FreeType now handles font files that have been compressed with the */ + /* `gzip' program. This is mostly used to parse many of the PCF files */ + /* that come with XFree86. The implementation uses `zlib' to */ + /* partially uncompress the file on the fly (see src/gzip/ftgzip.c). */ + /* */ + /* Define this macro if you want to enable this `feature'. See also */ + /* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */ + /* */ +#define FT_CONFIG_OPTION_USE_ZLIB + + + /*************************************************************************/ + /* */ + /* ZLib library selection */ + /* */ + /* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined. */ + /* It allows FreeType's `ftgzip' component to link to the system's */ + /* installation of the ZLib library. This is useful on systems like */ + /* Unix or VMS where it generally is already available. */ + /* */ + /* If you let it undefined, the component will use its own copy */ + /* of the zlib sources instead. These have been modified to be */ + /* included directly within the component and *not* export external */ + /* function names. This allows you to link any program with FreeType */ + /* _and_ ZLib without linking conflicts. */ + /* */ + /* Do not #undef this macro here since the build system might define */ + /* it for certain configurations only. */ + /* */ +/* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */ + + + /*************************************************************************/ + /* */ + /* Bzip2-compressed file support. */ + /* */ + /* FreeType now handles font files that have been compressed with the */ + /* `bzip2' program. This is mostly used to parse many of the PCF */ + /* files that come with XFree86. The implementation uses `libbz2' to */ + /* partially uncompress the file on the fly (see src/bzip2/ftbzip2.c). */ + /* Contrary to gzip, bzip2 currently is not included and need to use */ + /* the system available bzip2 implementation. */ + /* */ + /* Define this macro if you want to enable this `feature'. */ + /* */ +/* #define FT_CONFIG_OPTION_USE_BZIP2 */ + + + /*************************************************************************/ + /* */ + /* Define to disable the use of file stream functions and types, FILE, */ + /* fopen() etc. Enables the use of smaller system libraries on embedded */ + /* systems that have multiple system libraries, some with or without */ + /* file stream support, in the cases where file stream support is not */ + /* necessary such as memory loading of font files. */ + /* */ +/* #define FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */ + + + /*************************************************************************/ + /* */ + /* DLL export compilation */ + /* */ + /* When compiling FreeType as a DLL, some systems/compilers need a */ + /* special keyword in front OR after the return type of function */ + /* declarations. */ + /* */ + /* Two macros are used within the FreeType source code to define */ + /* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */ + /* */ + /* FT_EXPORT( return_type ) */ + /* */ + /* is used in a function declaration, as in */ + /* */ + /* FT_EXPORT( FT_Error ) */ + /* FT_Init_FreeType( FT_Library* alibrary ); */ + /* */ + /* */ + /* FT_EXPORT_DEF( return_type ) */ + /* */ + /* is used in a function definition, as in */ + /* */ + /* FT_EXPORT_DEF( FT_Error ) */ + /* FT_Init_FreeType( FT_Library* alibrary ) */ + /* { */ + /* ... some code ... */ + /* return FT_Err_Ok; */ + /* } */ + /* */ + /* You can provide your own implementation of FT_EXPORT and */ + /* FT_EXPORT_DEF here if you want. If you leave them undefined, they */ + /* will be later automatically defined as `extern return_type' to */ + /* allow normal compilation. */ + /* */ + /* Do not #undef these macros here since the build system might define */ + /* them for certain configurations only. */ + /* */ +/* #define FT_EXPORT(x) extern x */ +/* #define FT_EXPORT_DEF(x) x */ + + + /*************************************************************************/ + /* */ + /* Glyph Postscript Names handling */ + /* */ + /* By default, FreeType 2 is compiled with the `psnames' module. This */ + /* module is in charge of converting a glyph name string into a */ + /* Unicode value, or return a Macintosh standard glyph name for the */ + /* use with the TrueType `post' table. */ + /* */ + /* Undefine this macro if you do not want `psnames' compiled in your */ + /* build of FreeType. This has the following effects: */ + /* */ + /* - The TrueType driver will provide its own set of glyph names, */ + /* if you build it to support postscript names in the TrueType */ + /* `post' table. */ + /* */ + /* - The Type 1 driver will not be able to synthesize a Unicode */ + /* charmap out of the glyphs found in the fonts. */ + /* */ + /* You would normally undefine this configuration macro when building */ + /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */ + /* */ +#define FT_CONFIG_OPTION_POSTSCRIPT_NAMES + + + /*************************************************************************/ + /* */ + /* Postscript Names to Unicode Values support */ + /* */ + /* By default, FreeType 2 is built with the `PSNames' module compiled */ + /* in. Among other things, the module is used to convert a glyph name */ + /* into a Unicode value. This is especially useful in order to */ + /* synthesize on the fly a Unicode charmap from the CFF/Type 1 driver */ + /* through a big table named the `Adobe Glyph List' (AGL). */ + /* */ + /* Undefine this macro if you do not want the Adobe Glyph List */ + /* compiled in your `PSNames' module. The Type 1 driver will not be */ + /* able to synthesize a Unicode charmap out of the glyphs found in the */ + /* fonts. */ + /* */ +#define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST + + + /*************************************************************************/ + /* */ + /* Support for Mac fonts */ + /* */ + /* Define this macro if you want support for outline fonts in Mac */ + /* format (mac dfont, mac resource, macbinary containing a mac */ + /* resource) on non-Mac platforms. */ + /* */ + /* Note that the `FOND' resource isn't checked. */ + /* */ +#define FT_CONFIG_OPTION_MAC_FONTS + + + /*************************************************************************/ + /* */ + /* Guessing methods to access embedded resource forks */ + /* */ + /* Enable extra Mac fonts support on non-Mac platforms (e.g. */ + /* GNU/Linux). */ + /* */ + /* Resource forks which include fonts data are stored sometimes in */ + /* locations which users or developers don't expected. In some cases, */ + /* resource forks start with some offset from the head of a file. In */ + /* other cases, the actual resource fork is stored in file different */ + /* from what the user specifies. If this option is activated, */ + /* FreeType tries to guess whether such offsets or different file */ + /* names must be used. */ + /* */ + /* Note that normal, direct access of resource forks is controlled via */ + /* the FT_CONFIG_OPTION_MAC_FONTS option. */ + /* */ +#ifdef FT_CONFIG_OPTION_MAC_FONTS +#define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK +#endif + + + /*************************************************************************/ + /* */ + /* Allow the use of FT_Incremental_Interface to load typefaces that */ + /* contain no glyph data, but supply it via a callback function. */ + /* This is required by clients supporting document formats which */ + /* supply font data incrementally as the document is parsed, such */ + /* as the Ghostscript interpreter for the PostScript language. */ + /* */ +#define FT_CONFIG_OPTION_INCREMENTAL + + + /*************************************************************************/ + /* */ + /* The size in bytes of the render pool used by the scan-line converter */ + /* to do all of its work. */ + /* */ + /* This must be greater than 4KByte if you use FreeType to rasterize */ + /* glyphs; otherwise, you may set it to zero to avoid unnecessary */ + /* allocation of the render pool. */ + /* */ +#define FT_RENDER_POOL_SIZE 16384L + + + /*************************************************************************/ + /* */ + /* FT_MAX_MODULES */ + /* */ + /* The maximum number of modules that can be registered in a single */ + /* FreeType library object. 32 is the default. */ + /* */ +#define FT_MAX_MODULES 32 + + + /*************************************************************************/ + /* */ + /* Debug level */ + /* */ + /* FreeType can be compiled in debug or trace mode. In debug mode, */ + /* errors are reported through the `ftdebug' component. In trace */ + /* mode, additional messages are sent to the standard output during */ + /* execution. */ + /* */ + /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */ + /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */ + /* */ + /* Don't define any of these macros to compile in `release' mode! */ + /* */ + /* Do not #undef these macros here since the build system might define */ + /* them for certain configurations only. */ + /* */ +/* #define FT_DEBUG_LEVEL_ERROR */ +/* #define FT_DEBUG_LEVEL_TRACE */ + + + /*************************************************************************/ + /* */ + /* Autofitter debugging */ + /* */ + /* If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to */ + /* control the autofitter behaviour for debugging purposes with global */ + /* boolean variables (consequently, you should *never* enable this */ + /* while compiling in `release' mode): */ + /* */ + /* _af_debug_disable_horz_hints */ + /* _af_debug_disable_vert_hints */ + /* _af_debug_disable_blue_hints */ + /* */ + /* Additionally, the following functions provide dumps of various */ + /* internal autofit structures to stdout (using `printf'): */ + /* */ + /* af_glyph_hints_dump_points */ + /* af_glyph_hints_dump_segments */ + /* af_glyph_hints_dump_edges */ + /* */ + /* As an argument, they use another global variable: */ + /* */ + /* _af_debug_hints */ + /* */ + /* Please have a look at the `ftgrid' demo program to see how those */ + /* variables and macros should be used. */ + /* */ + /* Do not #undef these macros here since the build system might define */ + /* them for certain configurations only. */ + /* */ +/* #define FT_DEBUG_AUTOFIT */ + + + /*************************************************************************/ + /* */ + /* Memory Debugging */ + /* */ + /* FreeType now comes with an integrated memory debugger that is */ + /* capable of detecting simple errors like memory leaks or double */ + /* deletes. To compile it within your build of the library, you */ + /* should define FT_DEBUG_MEMORY here. */ + /* */ + /* Note that the memory debugger is only activated at runtime when */ + /* when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */ + /* */ + /* Do not #undef this macro here since the build system might define */ + /* it for certain configurations only. */ + /* */ +/* #define FT_DEBUG_MEMORY */ + + + /*************************************************************************/ + /* */ + /* Module errors */ + /* */ + /* If this macro is set (which is _not_ the default), the higher byte */ + /* of an error code gives the module in which the error has occurred, */ + /* while the lower byte is the real error code. */ + /* */ + /* Setting this macro makes sense for debugging purposes only, since */ + /* it would break source compatibility of certain programs that use */ + /* FreeType 2. */ + /* */ + /* More details can be found in the files ftmoderr.h and fterrors.h. */ + /* */ +#undef FT_CONFIG_OPTION_USE_MODULE_ERRORS + + + /*************************************************************************/ + /* */ + /* Position Independent Code */ + /* */ + /* If this macro is set (which is _not_ the default), FreeType2 will */ + /* avoid creating constants that require address fixups. Instead the */ + /* constants will be moved into a struct and additional intialization */ + /* code will be used. */ + /* */ + /* Setting this macro is needed for systems that prohibit address */ + /* fixups, such as BREW. */ + /* */ +/* #define FT_CONFIG_OPTION_PIC */ + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** S F N T D R I V E R C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */ + /* embedded bitmaps in all formats using the SFNT module (namely */ + /* TrueType & OpenType). */ + /* */ +#define TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */ + /* load and enumerate the glyph Postscript names in a TrueType or */ + /* OpenType file. */ + /* */ + /* Note that when you do not compile the `PSNames' module by undefining */ + /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */ + /* contain additional code used to read the PS Names table from a font. */ + /* */ + /* (By default, the module uses `PSNames' to extract glyph names.) */ + /* */ +#define TT_CONFIG_OPTION_POSTSCRIPT_NAMES + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */ + /* access the internal name table in a SFNT-based format like TrueType */ + /* or OpenType. The name table contains various strings used to */ + /* describe the font, like family name, copyright, version, etc. It */ + /* does not contain any glyph name though. */ + /* */ + /* Accessing SFNT names is done through the functions declared in */ + /* `freetype/ftsnames.h'. */ + /* */ +#define TT_CONFIG_OPTION_SFNT_NAMES + + + /*************************************************************************/ + /* */ + /* TrueType CMap support */ + /* */ + /* Here you can fine-tune which TrueType CMap table format shall be */ + /* supported. */ +#define TT_CONFIG_CMAP_FORMAT_0 +#define TT_CONFIG_CMAP_FORMAT_2 +#define TT_CONFIG_CMAP_FORMAT_4 +#define TT_CONFIG_CMAP_FORMAT_6 +#define TT_CONFIG_CMAP_FORMAT_8 +#define TT_CONFIG_CMAP_FORMAT_10 +#define TT_CONFIG_CMAP_FORMAT_12 +#define TT_CONFIG_CMAP_FORMAT_13 +#define TT_CONFIG_CMAP_FORMAT_14 + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** T R U E T Y P E D R I V E R C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */ + /* a bytecode interpreter in the TrueType driver. */ + /* */ + /* By undefining this, you will only compile the code necessary to load */ + /* TrueType glyphs without hinting. */ + /* */ + /* Do not #undef this macro here, since the build system might */ + /* define it for certain configurations only. */ + /* */ +#define TT_CONFIG_OPTION_BYTECODE_INTERPRETER + + + /*************************************************************************/ + /* */ + /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */ + /* of the TrueType bytecode interpreter is used that doesn't implement */ + /* any of the patented opcodes and algorithms. The patents related to */ + /* TrueType hinting have expired worldwide since May 2010; this option */ + /* is now deprecated. */ + /* */ + /* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* */ + /* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, */ + /* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or */ + /* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time. */ + /* */ + /* This macro is only useful for a small number of font files (mostly */ + /* for Asian scripts) that require bytecode interpretation to properly */ + /* load glyphs. For all other fonts, this produces unpleasant results, */ + /* thus the unpatented interpreter is never used to load glyphs from */ + /* TrueType fonts unless one of the following two options is used. */ + /* */ + /* - The unpatented interpreter is explicitly activated by the user */ + /* through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag */ + /* when opening the FT_Face. */ + /* */ + /* - FreeType detects that the FT_Face corresponds to one of the */ + /* `trick' fonts (e.g., `Mingliu') it knows about. The font engine */ + /* contains a hard-coded list of font names and other matching */ + /* parameters (see function `tt_face_init' in file */ + /* `src/truetype/ttobjs.c'). */ + /* */ + /* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */ + /* */ + /* { */ + /* FT_Parameter parameter; */ + /* FT_Open_Args open_args; */ + /* */ + /* */ + /* parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING; */ + /* */ + /* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; */ + /* open_args.pathname = my_font_pathname; */ + /* open_args.num_params = 1; */ + /* open_args.params = ¶meter; */ + /* */ + /* error = FT_Open_Face( library, &open_args, index, &face ); */ + /* ... */ + /* } */ + /* */ +/* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */ + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */ + /* bytecode interpreter with a huge switch statement, rather than a call */ + /* table. This results in smaller and faster code for a number of */ + /* architectures. */ + /* */ + /* Note however that on some compiler/processor combinations, undefining */ + /* this macro will generate faster, though larger, code. */ + /* */ +#define TT_CONFIG_OPTION_INTERPRETER_SWITCH + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */ + /* TrueType glyph loader to use Apple's definition of how to handle */ + /* component offsets in composite glyphs. */ + /* */ + /* Apple and MS disagree on the default behavior of component offsets */ + /* in composites. Apple says that they should be scaled by the scaling */ + /* factors in the transformation matrix (roughly, it's more complex) */ + /* while MS says they should not. OpenType defines two bits in the */ + /* composite flags array which can be used to disambiguate, but old */ + /* fonts will not have them. */ + /* */ + /* http://www.microsoft.com/typography/otspec/glyf.htm */ + /* http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html */ + /* */ +#undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */ + /* support for Apple's distortable font technology (fvar, gvar, cvar, */ + /* and avar tables). This has many similarities to Type 1 Multiple */ + /* Masters support. */ + /* */ +#define TT_CONFIG_OPTION_GX_VAR_SUPPORT + + + /*************************************************************************/ + /* */ + /* Define TT_CONFIG_OPTION_BDF if you want to include support for */ + /* an embedded `BDF ' table within SFNT-based bitmap formats. */ + /* */ +#define TT_CONFIG_OPTION_BDF + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and */ + /* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */ + /* required. */ + /* */ +#define T1_MAX_DICT_DEPTH 5 + + + /*************************************************************************/ + /* */ + /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ + /* calls during glyph loading. */ + /* */ +#define T1_MAX_SUBRS_CALLS 16 + + + /*************************************************************************/ + /* */ + /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ + /* minimum of 16 is required. */ + /* */ + /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */ + /* */ +#define T1_MAX_CHARSTRINGS_OPERANDS 256 + + + /*************************************************************************/ + /* */ + /* Define this configuration macro if you want to prevent the */ + /* compilation of `t1afm', which is in charge of reading Type 1 AFM */ + /* files into an existing face. Note that if set, the T1 driver will be */ + /* unable to produce kerning distances. */ + /* */ +#undef T1_CONFIG_OPTION_NO_AFM + + + /*************************************************************************/ + /* */ + /* Define this configuration macro if you want to prevent the */ + /* compilation of the Multiple Masters font support in the Type 1 */ + /* driver. */ + /* */ +#undef T1_CONFIG_OPTION_NO_MM_SUPPORT + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** A U T O F I T M O D U L E C O N F I G U R A T I O N ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Compile autofit module with CJK (Chinese, Japanese, Korean) script */ + /* support. */ + /* */ +#define AF_CONFIG_OPTION_CJK + + /*************************************************************************/ + /* */ + /* Compile autofit module with Indic script support. */ + /* */ +#define AF_CONFIG_OPTION_INDIC + + /*************************************************************************/ + /* */ + /* Compile autofit module with warp hinting. The idea of the warping */ + /* code is to slightly scale and shift a glyph within a single dimension */ + /* so that as much of its segments are aligned (more or less) on the */ + /* grid. To find out the optimal scaling and shifting value, various */ + /* parameter combinations are tried and scored. */ + /* */ + /* This experimental option is only active if the render mode is */ + /* FT_RENDER_MODE_LIGHT. */ + /* */ +/* #define AF_CONFIG_OPTION_USE_WARPER */ + + /* */ + + + /* + * Define this variable if you want to keep the layout of internal + * structures that was used prior to FreeType 2.2. This also compiles in + * a few obsolete functions to avoid linking problems on typical Unix + * distributions. + * + * For embedded systems or building a new distribution from scratch, it + * is recommended to disable the macro since it reduces the library's code + * size and activates a few memory-saving optimizations as well. + */ +#define FT_CONFIG_OPTION_OLD_INTERNALS + + + /* + * To detect legacy cache-lookup call from a rogue client (<= 2.1.7), + * we restrict the number of charmaps in a font. The current API of + * FTC_CMapCache_Lookup() takes cmap_index & charcode, but old API + * takes charcode only. To determine the passed value is for cmap_index + * or charcode, the possible cmap_index is restricted not to exceed + * the minimum possible charcode by a rogue client. It is also very + * unlikely that a rogue client is interested in Unicode values 0 to 15. + * + * NOTE: The original threshold was 4 deduced from popular number of + * cmap subtables in UCS-4 TrueType fonts, but now it is not + * irregular for OpenType fonts to have more than 4 subtables, + * because variation selector subtables are available for Apple + * and Microsoft platforms. + */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS +#define FT_MAX_CHARMAP_CACHEABLE 15 +#endif + + + /* + * This macro is defined if either unpatented or native TrueType + * hinting is requested by the definitions above. + */ +#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER +#define TT_USE_BYTECODE_INTERPRETER +#undef TT_CONFIG_OPTION_UNPATENTED_HINTING +#elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING +#define TT_USE_BYTECODE_INTERPRETER +#endif + +FT_END_HEADER + + +#endif /* __FTOPTION_H__ */ + + +/* END */ diff --git a/include/freetype/config/ftstdlib.h b/include/freetype/config/ftstdlib.h new file mode 100644 index 0000000..11d5d0e --- /dev/null +++ b/include/freetype/config/ftstdlib.h @@ -0,0 +1,174 @@ +/***************************************************************************/ +/* */ +/* ftstdlib.h */ +/* */ +/* ANSI-specific library and header configuration file (specification */ +/* only). */ +/* */ +/* Copyright 2002-2007, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to group all #includes to the ANSI C library that */ + /* FreeType normally requires. It also defines macros to rename the */ + /* standard functions within the FreeType source code. */ + /* */ + /* Load a file which defines __FTSTDLIB_H__ before this one to override */ + /* it. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTSTDLIB_H__ +#define __FTSTDLIB_H__ + + +#include <stddef.h> + +#define ft_ptrdiff_t ptrdiff_t + + + /**********************************************************************/ + /* */ + /* integer limits */ + /* */ + /* UINT_MAX and ULONG_MAX are used to automatically compute the size */ + /* of `int' and `long' in bytes at compile-time. So far, this works */ + /* for all platforms the library has been tested on. */ + /* */ + /* Note that on the extremely rare platforms that do not provide */ + /* integer types that are _exactly_ 16 and 32 bits wide (e.g. some */ + /* old Crays where `int' is 36 bits), we do not make any guarantee */ + /* about the correct behaviour of FT2 with all fonts. */ + /* */ + /* In these case, `ftconfig.h' will refuse to compile anyway with a */ + /* message like `couldn't find 32-bit type' or something similar. */ + /* */ + /**********************************************************************/ + + +#include <limits.h> + +#define FT_CHAR_BIT CHAR_BIT +#define FT_USHORT_MAX USHRT_MAX +#define FT_INT_MAX INT_MAX +#define FT_INT_MIN INT_MIN +#define FT_UINT_MAX UINT_MAX +#define FT_ULONG_MAX ULONG_MAX + + + /**********************************************************************/ + /* */ + /* character and string processing */ + /* */ + /**********************************************************************/ + + +#include <string.h> + +#define ft_memchr memchr +#define ft_memcmp memcmp +#define ft_memcpy memcpy +#define ft_memmove memmove +#define ft_memset memset +#define ft_strcat strcat +#define ft_strcmp strcmp +#define ft_strcpy strcpy +#define ft_strlen strlen +#define ft_strncmp strncmp +#define ft_strncpy strncpy +#define ft_strrchr strrchr +#define ft_strstr strstr + + + /**********************************************************************/ + /* */ + /* file handling */ + /* */ + /**********************************************************************/ + + +#include <stdio.h> + +#define FT_FILE FILE +#define ft_fclose fclose +#define ft_fopen fopen +#define ft_fread fread +#define ft_fseek fseek +#define ft_ftell ftell +#define ft_sprintf sprintf + + + /**********************************************************************/ + /* */ + /* sorting */ + /* */ + /**********************************************************************/ + + +#include <stdlib.h> + +#define ft_qsort qsort + + + /**********************************************************************/ + /* */ + /* memory allocation */ + /* */ + /**********************************************************************/ + + +#define ft_scalloc calloc +#define ft_sfree free +#define ft_smalloc malloc +#define ft_srealloc realloc + + + /**********************************************************************/ + /* */ + /* miscellaneous */ + /* */ + /**********************************************************************/ + + +#define ft_atol atol +#define ft_labs labs + + + /**********************************************************************/ + /* */ + /* execution control */ + /* */ + /**********************************************************************/ + + +#include <setjmp.h> + +#define ft_jmp_buf jmp_buf /* note: this cannot be a typedef since */ + /* jmp_buf is defined as a macro */ + /* on certain platforms */ + +#define ft_longjmp longjmp +#define ft_setjmp( b ) setjmp( *(jmp_buf*) &(b) ) /* same thing here */ + + + /* the following is only used for debugging purposes, i.e., if */ + /* FT_DEBUG_LEVEL_ERROR or FT_DEBUG_LEVEL_TRACE are defined */ + +#include <stdarg.h> + + +#endif /* __FTSTDLIB_H__ */ + + +/* END */ diff --git a/include/freetype/freetype.h b/include/freetype/freetype.h new file mode 100644 index 0000000..63c291a --- /dev/null +++ b/include/freetype/freetype.h @@ -0,0 +1,3945 @@ +/***************************************************************************/ +/* */ +/* freetype.h */ +/* */ +/* FreeType high-level API and common types (specification only). */ +/* */ +/* Copyright 1996-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef FT_FREETYPE_H +#error "`ft2build.h' hasn't been included yet!" +#error "Please always use macros to include FreeType header files." +#error "Example:" +#error " #include <ft2build.h>" +#error " #include FT_FREETYPE_H" +#endif + + +#ifndef __FREETYPE_H__ +#define __FREETYPE_H__ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_ERRORS_H +#include FT_TYPES_H + + +FT_BEGIN_HEADER + + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* user_allocation */ + /* */ + /* <Title> */ + /* User allocation */ + /* */ + /* <Abstract> */ + /* How client applications should allocate FreeType data structures. */ + /* */ + /* <Description> */ + /* FreeType assumes that structures allocated by the user and passed */ + /* as arguments are zeroed out except for the actual data. In other */ + /* words, it is recommended to use `calloc' (or variants of it) */ + /* instead of `malloc' for allocation. */ + /* */ + /*************************************************************************/ + + + + /*************************************************************************/ + /*************************************************************************/ + /* */ + /* B A S I C T Y P E S */ + /* */ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* base_interface */ + /* */ + /* <Title> */ + /* Base Interface */ + /* */ + /* <Abstract> */ + /* The FreeType~2 base font interface. */ + /* */ + /* <Description> */ + /* This section describes the public high-level API of FreeType~2. */ + /* */ + /* <Order> */ + /* FT_Library */ + /* FT_Face */ + /* FT_Size */ + /* FT_GlyphSlot */ + /* FT_CharMap */ + /* FT_Encoding */ + /* */ + /* FT_FaceRec */ + /* */ + /* FT_FACE_FLAG_SCALABLE */ + /* FT_FACE_FLAG_FIXED_SIZES */ + /* FT_FACE_FLAG_FIXED_WIDTH */ + /* FT_FACE_FLAG_HORIZONTAL */ + /* FT_FACE_FLAG_VERTICAL */ + /* FT_FACE_FLAG_SFNT */ + /* FT_FACE_FLAG_KERNING */ + /* FT_FACE_FLAG_MULTIPLE_MASTERS */ + /* FT_FACE_FLAG_GLYPH_NAMES */ + /* FT_FACE_FLAG_EXTERNAL_STREAM */ + /* FT_FACE_FLAG_FAST_GLYPHS */ + /* FT_FACE_FLAG_HINTER */ + /* */ + /* FT_STYLE_FLAG_BOLD */ + /* FT_STYLE_FLAG_ITALIC */ + /* */ + /* FT_SizeRec */ + /* FT_Size_Metrics */ + /* */ + /* FT_GlyphSlotRec */ + /* FT_Glyph_Metrics */ + /* FT_SubGlyph */ + /* */ + /* FT_Bitmap_Size */ + /* */ + /* FT_Init_FreeType */ + /* FT_Done_FreeType */ + /* */ + /* FT_New_Face */ + /* FT_Done_Face */ + /* FT_New_Memory_Face */ + /* FT_Open_Face */ + /* FT_Open_Args */ + /* FT_Parameter */ + /* FT_Attach_File */ + /* FT_Attach_Stream */ + /* */ + /* FT_Set_Char_Size */ + /* FT_Set_Pixel_Sizes */ + /* FT_Request_Size */ + /* FT_Select_Size */ + /* FT_Size_Request_Type */ + /* FT_Size_Request */ + /* FT_Set_Transform */ + /* FT_Load_Glyph */ + /* FT_Get_Char_Index */ + /* FT_Get_Name_Index */ + /* FT_Load_Char */ + /* */ + /* FT_OPEN_MEMORY */ + /* FT_OPEN_STREAM */ + /* FT_OPEN_PATHNAME */ + /* FT_OPEN_DRIVER */ + /* FT_OPEN_PARAMS */ + /* */ + /* FT_LOAD_DEFAULT */ + /* FT_LOAD_RENDER */ + /* FT_LOAD_MONOCHROME */ + /* FT_LOAD_LINEAR_DESIGN */ + /* FT_LOAD_NO_SCALE */ + /* FT_LOAD_NO_HINTING */ + /* FT_LOAD_NO_BITMAP */ + /* FT_LOAD_CROP_BITMAP */ + /* */ + /* FT_LOAD_VERTICAL_LAYOUT */ + /* FT_LOAD_IGNORE_TRANSFORM */ + /* FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH */ + /* FT_LOAD_FORCE_AUTOHINT */ + /* FT_LOAD_NO_RECURSE */ + /* FT_LOAD_PEDANTIC */ + /* */ + /* FT_LOAD_TARGET_NORMAL */ + /* FT_LOAD_TARGET_LIGHT */ + /* FT_LOAD_TARGET_MONO */ + /* FT_LOAD_TARGET_LCD */ + /* FT_LOAD_TARGET_LCD_V */ + /* */ + /* FT_Render_Glyph */ + /* FT_Render_Mode */ + /* FT_Get_Kerning */ + /* FT_Kerning_Mode */ + /* FT_Get_Track_Kerning */ + /* FT_Get_Glyph_Name */ + /* FT_Get_Postscript_Name */ + /* */ + /* FT_CharMapRec */ + /* FT_Select_Charmap */ + /* FT_Set_Charmap */ + /* FT_Get_Charmap_Index */ + /* */ + /* FT_FSTYPE_INSTALLABLE_EMBEDDING */ + /* FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING */ + /* FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING */ + /* FT_FSTYPE_EDITABLE_EMBEDDING */ + /* FT_FSTYPE_NO_SUBSETTING */ + /* FT_FSTYPE_BITMAP_EMBEDDING_ONLY */ + /* */ + /* FT_Get_FSType_Flags */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Glyph_Metrics */ + /* */ + /* <Description> */ + /* A structure used to model the metrics of a single glyph. The */ + /* values are expressed in 26.6 fractional pixel format; if the flag */ + /* @FT_LOAD_NO_SCALE has been used while loading the glyph, values */ + /* are expressed in font units instead. */ + /* */ + /* <Fields> */ + /* width :: */ + /* The glyph's width. */ + /* */ + /* height :: */ + /* The glyph's height. */ + /* */ + /* horiBearingX :: */ + /* Left side bearing for horizontal layout. */ + /* */ + /* horiBearingY :: */ + /* Top side bearing for horizontal layout. */ + /* */ + /* horiAdvance :: */ + /* Advance width for horizontal layout. */ + /* */ + /* vertBearingX :: */ + /* Left side bearing for vertical layout. */ + /* */ + /* vertBearingY :: */ + /* Top side bearing for vertical layout. Larger positive values */ + /* mean further below the vertical glyph origin. */ + /* */ + /* vertAdvance :: */ + /* Advance height for vertical layout. Positive values mean the */ + /* glyph has a positive advance downward. */ + /* */ + /* <Note> */ + /* If not disabled with @FT_LOAD_NO_HINTING, the values represent */ + /* dimensions of the hinted glyph (in case hinting is applicable). */ + /* */ + typedef struct FT_Glyph_Metrics_ + { + FT_Pos width; + FT_Pos height; + + FT_Pos horiBearingX; + FT_Pos horiBearingY; + FT_Pos horiAdvance; + + FT_Pos vertBearingX; + FT_Pos vertBearingY; + FT_Pos vertAdvance; + + } FT_Glyph_Metrics; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Bitmap_Size */ + /* */ + /* <Description> */ + /* This structure models the metrics of a bitmap strike (i.e., a set */ + /* of glyphs for a given point size and resolution) in a bitmap font. */ + /* It is used for the `available_sizes' field of @FT_Face. */ + /* */ + /* <Fields> */ + /* height :: The vertical distance, in pixels, between two */ + /* consecutive baselines. It is always positive. */ + /* */ + /* width :: The average width, in pixels, of all glyphs in the */ + /* strike. */ + /* */ + /* size :: The nominal size of the strike in 26.6 fractional */ + /* points. This field is not very useful. */ + /* */ + /* x_ppem :: The horizontal ppem (nominal width) in 26.6 fractional */ + /* pixels. */ + /* */ + /* y_ppem :: The vertical ppem (nominal height) in 26.6 fractional */ + /* pixels. */ + /* */ + /* <Note> */ + /* Windows FNT: */ + /* The nominal size given in a FNT font is not reliable. Thus when */ + /* the driver finds it incorrect, it sets `size' to some calculated */ + /* values and sets `x_ppem' and `y_ppem' to the pixel width and */ + /* height given in the font, respectively. */ + /* */ + /* TrueType embedded bitmaps: */ + /* `size', `width', and `height' values are not contained in the */ + /* bitmap strike itself. They are computed from the global font */ + /* parameters. */ + /* */ + typedef struct FT_Bitmap_Size_ + { + FT_Short height; + FT_Short width; + + FT_Pos size; + + FT_Pos x_ppem; + FT_Pos y_ppem; + + } FT_Bitmap_Size; + + + /*************************************************************************/ + /*************************************************************************/ + /* */ + /* O B J E C T C L A S S E S */ + /* */ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Library */ + /* */ + /* <Description> */ + /* A handle to a FreeType library instance. Each `library' is */ + /* completely independent from the others; it is the `root' of a set */ + /* of objects like fonts, faces, sizes, etc. */ + /* */ + /* It also embeds a memory manager (see @FT_Memory), as well as a */ + /* scan-line converter object (see @FT_Raster). */ + /* */ + /* For multi-threading applications each thread should have its own */ + /* FT_Library object. */ + /* */ + /* <Note> */ + /* Library objects are normally created by @FT_Init_FreeType, and */ + /* destroyed with @FT_Done_FreeType. */ + /* */ + typedef struct FT_LibraryRec_ *FT_Library; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Module */ + /* */ + /* <Description> */ + /* A handle to a given FreeType module object. Each module can be a */ + /* font driver, a renderer, or anything else that provides services */ + /* to the formers. */ + /* */ + typedef struct FT_ModuleRec_* FT_Module; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Driver */ + /* */ + /* <Description> */ + /* A handle to a given FreeType font driver object. Each font driver */ + /* is a special module capable of creating faces from font files. */ + /* */ + typedef struct FT_DriverRec_* FT_Driver; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Renderer */ + /* */ + /* <Description> */ + /* A handle to a given FreeType renderer. A renderer is a special */ + /* module in charge of converting a glyph image to a bitmap, when */ + /* necessary. Each renderer supports a given glyph image format, and */ + /* one or more target surface depths. */ + /* */ + typedef struct FT_RendererRec_* FT_Renderer; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Face */ + /* */ + /* <Description> */ + /* A handle to a given typographic face object. A face object models */ + /* a given typeface, in a given style. */ + /* */ + /* <Note> */ + /* Each face object also owns a single @FT_GlyphSlot object, as well */ + /* as one or more @FT_Size objects. */ + /* */ + /* Use @FT_New_Face or @FT_Open_Face to create a new face object from */ + /* a given filepathname or a custom input stream. */ + /* */ + /* Use @FT_Done_Face to destroy it (along with its slot and sizes). */ + /* */ + /* <Also> */ + /* See @FT_FaceRec for the publicly accessible fields of a given face */ + /* object. */ + /* */ + typedef struct FT_FaceRec_* FT_Face; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Size */ + /* */ + /* <Description> */ + /* A handle to an object used to model a face scaled to a given */ + /* character size. */ + /* */ + /* <Note> */ + /* Each @FT_Face has an _active_ @FT_Size object that is used by */ + /* functions like @FT_Load_Glyph to determine the scaling */ + /* transformation which is used to load and hint glyphs and metrics. */ + /* */ + /* You can use @FT_Set_Char_Size, @FT_Set_Pixel_Sizes, */ + /* @FT_Request_Size or even @FT_Select_Size to change the content */ + /* (i.e., the scaling values) of the active @FT_Size. */ + /* */ + /* You can use @FT_New_Size to create additional size objects for a */ + /* given @FT_Face, but they won't be used by other functions until */ + /* you activate it through @FT_Activate_Size. Only one size can be */ + /* activated at any given time per face. */ + /* */ + /* <Also> */ + /* See @FT_SizeRec for the publicly accessible fields of a given size */ + /* object. */ + /* */ + typedef struct FT_SizeRec_* FT_Size; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_GlyphSlot */ + /* */ + /* <Description> */ + /* A handle to a given `glyph slot'. A slot is a container where it */ + /* is possible to load any of the glyphs contained in its parent */ + /* face. */ + /* */ + /* In other words, each time you call @FT_Load_Glyph or */ + /* @FT_Load_Char, the slot's content is erased by the new glyph data, */ + /* i.e., the glyph's metrics, its image (bitmap or outline), and */ + /* other control information. */ + /* */ + /* <Also> */ + /* See @FT_GlyphSlotRec for the publicly accessible glyph fields. */ + /* */ + typedef struct FT_GlyphSlotRec_* FT_GlyphSlot; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_CharMap */ + /* */ + /* <Description> */ + /* A handle to a given character map. A charmap is used to translate */ + /* character codes in a given encoding into glyph indexes for its */ + /* parent's face. Some font formats may provide several charmaps per */ + /* font. */ + /* */ + /* Each face object owns zero or more charmaps, but only one of them */ + /* can be `active' and used by @FT_Get_Char_Index or @FT_Load_Char. */ + /* */ + /* The list of available charmaps in a face is available through the */ + /* `face->num_charmaps' and `face->charmaps' fields of @FT_FaceRec. */ + /* */ + /* The currently active charmap is available as `face->charmap'. */ + /* You should call @FT_Set_Charmap to change it. */ + /* */ + /* <Note> */ + /* When a new face is created (either through @FT_New_Face or */ + /* @FT_Open_Face), the library looks for a Unicode charmap within */ + /* the list and automatically activates it. */ + /* */ + /* <Also> */ + /* See @FT_CharMapRec for the publicly accessible fields of a given */ + /* character map. */ + /* */ + typedef struct FT_CharMapRec_* FT_CharMap; + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_ENC_TAG */ + /* */ + /* <Description> */ + /* This macro converts four-letter tags into an unsigned long. It is */ + /* used to define `encoding' identifiers (see @FT_Encoding). */ + /* */ + /* <Note> */ + /* Since many 16-bit compilers don't like 32-bit enumerations, you */ + /* should redefine this macro in case of problems to something like */ + /* this: */ + /* */ + /* { */ + /* #define FT_ENC_TAG( value, a, b, c, d ) value */ + /* } */ + /* */ + /* to get a simple enumeration without assigning special numbers. */ + /* */ + +#ifndef FT_ENC_TAG +#define FT_ENC_TAG( value, a, b, c, d ) \ + value = ( ( (FT_UInt32)(a) << 24 ) | \ + ( (FT_UInt32)(b) << 16 ) | \ + ( (FT_UInt32)(c) << 8 ) | \ + (FT_UInt32)(d) ) + +#endif /* FT_ENC_TAG */ + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Encoding */ + /* */ + /* <Description> */ + /* An enumeration used to specify character sets supported by */ + /* charmaps. Used in the @FT_Select_Charmap API function. */ + /* */ + /* <Note> */ + /* Despite the name, this enumeration lists specific character */ + /* repertories (i.e., charsets), and not text encoding methods (e.g., */ + /* UTF-8, UTF-16, etc.). */ + /* */ + /* Other encodings might be defined in the future. */ + /* */ + /* <Values> */ + /* FT_ENCODING_NONE :: */ + /* The encoding value~0 is reserved. */ + /* */ + /* FT_ENCODING_UNICODE :: */ + /* Corresponds to the Unicode character set. This value covers */ + /* all versions of the Unicode repertoire, including ASCII and */ + /* Latin-1. Most fonts include a Unicode charmap, but not all */ + /* of them. */ + /* */ + /* For example, if you want to access Unicode value U+1F028 (and */ + /* the font contains it), use value 0x1F028 as the input value for */ + /* @FT_Get_Char_Index. */ + /* */ + /* FT_ENCODING_MS_SYMBOL :: */ + /* Corresponds to the Microsoft Symbol encoding, used to encode */ + /* mathematical symbols in the 32..255 character code range. For */ + /* more information, see `http://www.ceviz.net/symbol.htm'. */ + /* */ + /* FT_ENCODING_SJIS :: */ + /* Corresponds to Japanese SJIS encoding. More info at */ + /* at `http://langsupport.japanreference.com/encoding.shtml'. */ + /* See note on multi-byte encodings below. */ + /* */ + /* FT_ENCODING_GB2312 :: */ + /* Corresponds to an encoding system for Simplified Chinese as used */ + /* used in mainland China. */ + /* */ + /* FT_ENCODING_BIG5 :: */ + /* Corresponds to an encoding system for Traditional Chinese as */ + /* used in Taiwan and Hong Kong. */ + /* */ + /* FT_ENCODING_WANSUNG :: */ + /* Corresponds to the Korean encoding system known as Wansung. */ + /* For more information see */ + /* `http://www.microsoft.com/typography/unicode/949.txt'. */ + /* */ + /* FT_ENCODING_JOHAB :: */ + /* The Korean standard character set (KS~C 5601-1992), which */ + /* corresponds to MS Windows code page 1361. This character set */ + /* includes all possible Hangeul character combinations. */ + /* */ + /* FT_ENCODING_ADOBE_LATIN_1 :: */ + /* Corresponds to a Latin-1 encoding as defined in a Type~1 */ + /* PostScript font. It is limited to 256 character codes. */ + /* */ + /* FT_ENCODING_ADOBE_STANDARD :: */ + /* Corresponds to the Adobe Standard encoding, as found in Type~1, */ + /* CFF, and OpenType/CFF fonts. It is limited to 256 character */ + /* codes. */ + /* */ + /* FT_ENCODING_ADOBE_EXPERT :: */ + /* Corresponds to the Adobe Expert encoding, as found in Type~1, */ + /* CFF, and OpenType/CFF fonts. It is limited to 256 character */ + /* codes. */ + /* */ + /* FT_ENCODING_ADOBE_CUSTOM :: */ + /* Corresponds to a custom encoding, as found in Type~1, CFF, and */ + /* OpenType/CFF fonts. It is limited to 256 character codes. */ + /* */ + /* FT_ENCODING_APPLE_ROMAN :: */ + /* Corresponds to the 8-bit Apple roman encoding. Many TrueType */ + /* and OpenType fonts contain a charmap for this encoding, since */ + /* older versions of Mac OS are able to use it. */ + /* */ + /* FT_ENCODING_OLD_LATIN_2 :: */ + /* This value is deprecated and was never used nor reported by */ + /* FreeType. Don't use or test for it. */ + /* */ + /* FT_ENCODING_MS_SJIS :: */ + /* Same as FT_ENCODING_SJIS. Deprecated. */ + /* */ + /* FT_ENCODING_MS_GB2312 :: */ + /* Same as FT_ENCODING_GB2312. Deprecated. */ + /* */ + /* FT_ENCODING_MS_BIG5 :: */ + /* Same as FT_ENCODING_BIG5. Deprecated. */ + /* */ + /* FT_ENCODING_MS_WANSUNG :: */ + /* Same as FT_ENCODING_WANSUNG. Deprecated. */ + /* */ + /* FT_ENCODING_MS_JOHAB :: */ + /* Same as FT_ENCODING_JOHAB. Deprecated. */ + /* */ + /* <Note> */ + /* By default, FreeType automatically synthesizes a Unicode charmap */ + /* for PostScript fonts, using their glyph names dictionaries. */ + /* However, it also reports the encodings defined explicitly in the */ + /* font file, for the cases when they are needed, with the Adobe */ + /* values as well. */ + /* */ + /* FT_ENCODING_NONE is set by the BDF and PCF drivers if the charmap */ + /* is neither Unicode nor ISO-8859-1 (otherwise it is set to */ + /* FT_ENCODING_UNICODE). Use @FT_Get_BDF_Charset_ID to find out */ + /* which encoding is really present. If, for example, the */ + /* `cs_registry' field is `KOI8' and the `cs_encoding' field is `R', */ + /* the font is encoded in KOI8-R. */ + /* */ + /* FT_ENCODING_NONE is always set (with a single exception) by the */ + /* winfonts driver. Use @FT_Get_WinFNT_Header and examine the */ + /* `charset' field of the @FT_WinFNT_HeaderRec structure to find out */ + /* which encoding is really present. For example, */ + /* @FT_WinFNT_ID_CP1251 (204) means Windows code page 1251 (for */ + /* Russian). */ + /* */ + /* FT_ENCODING_NONE is set if `platform_id' is @TT_PLATFORM_MACINTOSH */ + /* and `encoding_id' is not @TT_MAC_ID_ROMAN (otherwise it is set to */ + /* FT_ENCODING_APPLE_ROMAN). */ + /* */ + /* If `platform_id' is @TT_PLATFORM_MACINTOSH, use the function */ + /* @FT_Get_CMap_Language_ID to query the Mac language ID which may */ + /* be needed to be able to distinguish Apple encoding variants. See */ + /* */ + /* http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/README.TXT */ + /* */ + /* to get an idea how to do that. Basically, if the language ID */ + /* is~0, don't use it, otherwise subtract 1 from the language ID. */ + /* Then examine `encoding_id'. If, for example, `encoding_id' is */ + /* @TT_MAC_ID_ROMAN and the language ID (minus~1) is */ + /* `TT_MAC_LANGID_GREEK', it is the Greek encoding, not Roman. */ + /* @TT_MAC_ID_ARABIC with `TT_MAC_LANGID_FARSI' means the Farsi */ + /* variant the Arabic encoding. */ + /* */ + typedef enum FT_Encoding_ + { + FT_ENC_TAG( FT_ENCODING_NONE, 0, 0, 0, 0 ), + + FT_ENC_TAG( FT_ENCODING_MS_SYMBOL, 's', 'y', 'm', 'b' ), + FT_ENC_TAG( FT_ENCODING_UNICODE, 'u', 'n', 'i', 'c' ), + + FT_ENC_TAG( FT_ENCODING_SJIS, 's', 'j', 'i', 's' ), + FT_ENC_TAG( FT_ENCODING_GB2312, 'g', 'b', ' ', ' ' ), + FT_ENC_TAG( FT_ENCODING_BIG5, 'b', 'i', 'g', '5' ), + FT_ENC_TAG( FT_ENCODING_WANSUNG, 'w', 'a', 'n', 's' ), + FT_ENC_TAG( FT_ENCODING_JOHAB, 'j', 'o', 'h', 'a' ), + + /* for backwards compatibility */ + FT_ENCODING_MS_SJIS = FT_ENCODING_SJIS, + FT_ENCODING_MS_GB2312 = FT_ENCODING_GB2312, + FT_ENCODING_MS_BIG5 = FT_ENCODING_BIG5, + FT_ENCODING_MS_WANSUNG = FT_ENCODING_WANSUNG, + FT_ENCODING_MS_JOHAB = FT_ENCODING_JOHAB, + + FT_ENC_TAG( FT_ENCODING_ADOBE_STANDARD, 'A', 'D', 'O', 'B' ), + FT_ENC_TAG( FT_ENCODING_ADOBE_EXPERT, 'A', 'D', 'B', 'E' ), + FT_ENC_TAG( FT_ENCODING_ADOBE_CUSTOM, 'A', 'D', 'B', 'C' ), + FT_ENC_TAG( FT_ENCODING_ADOBE_LATIN_1, 'l', 'a', 't', '1' ), + + FT_ENC_TAG( FT_ENCODING_OLD_LATIN_2, 'l', 'a', 't', '2' ), + + FT_ENC_TAG( FT_ENCODING_APPLE_ROMAN, 'a', 'r', 'm', 'n' ) + + } FT_Encoding; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* ft_encoding_xxx */ + /* */ + /* <Description> */ + /* These constants are deprecated; use the corresponding @FT_Encoding */ + /* values instead. */ + /* */ +#define ft_encoding_none FT_ENCODING_NONE +#define ft_encoding_unicode FT_ENCODING_UNICODE +#define ft_encoding_symbol FT_ENCODING_MS_SYMBOL +#define ft_encoding_latin_1 FT_ENCODING_ADOBE_LATIN_1 +#define ft_encoding_latin_2 FT_ENCODING_OLD_LATIN_2 +#define ft_encoding_sjis FT_ENCODING_SJIS +#define ft_encoding_gb2312 FT_ENCODING_GB2312 +#define ft_encoding_big5 FT_ENCODING_BIG5 +#define ft_encoding_wansung FT_ENCODING_WANSUNG +#define ft_encoding_johab FT_ENCODING_JOHAB + +#define ft_encoding_adobe_standard FT_ENCODING_ADOBE_STANDARD +#define ft_encoding_adobe_expert FT_ENCODING_ADOBE_EXPERT +#define ft_encoding_adobe_custom FT_ENCODING_ADOBE_CUSTOM +#define ft_encoding_apple_roman FT_ENCODING_APPLE_ROMAN + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_CharMapRec */ + /* */ + /* <Description> */ + /* The base charmap structure. */ + /* */ + /* <Fields> */ + /* face :: A handle to the parent face object. */ + /* */ + /* encoding :: An @FT_Encoding tag identifying the charmap. Use */ + /* this with @FT_Select_Charmap. */ + /* */ + /* platform_id :: An ID number describing the platform for the */ + /* following encoding ID. This comes directly from */ + /* the TrueType specification and should be emulated */ + /* for other formats. */ + /* */ + /* encoding_id :: A platform specific encoding number. This also */ + /* comes from the TrueType specification and should be */ + /* emulated similarly. */ + /* */ + typedef struct FT_CharMapRec_ + { + FT_Face face; + FT_Encoding encoding; + FT_UShort platform_id; + FT_UShort encoding_id; + + } FT_CharMapRec; + + + /*************************************************************************/ + /*************************************************************************/ + /* */ + /* B A S E O B J E C T C L A S S E S */ + /* */ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Face_Internal */ + /* */ + /* <Description> */ + /* An opaque handle to an `FT_Face_InternalRec' structure, used to */ + /* model private data of a given @FT_Face object. */ + /* */ + /* This structure might change between releases of FreeType~2 and is */ + /* not generally available to client applications. */ + /* */ + typedef struct FT_Face_InternalRec_* FT_Face_Internal; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_FaceRec */ + /* */ + /* <Description> */ + /* FreeType root face class structure. A face object models a */ + /* typeface in a font file. */ + /* */ + /* <Fields> */ + /* num_faces :: The number of faces in the font file. Some */ + /* font formats can have multiple faces in */ + /* a font file. */ + /* */ + /* face_index :: The index of the face in the font file. It */ + /* is set to~0 if there is only one face in */ + /* the font file. */ + /* */ + /* face_flags :: A set of bit flags that give important */ + /* information about the face; see */ + /* @FT_FACE_FLAG_XXX for the details. */ + /* */ + /* style_flags :: A set of bit flags indicating the style of */ + /* the face; see @FT_STYLE_FLAG_XXX for the */ + /* details. */ + /* */ + /* num_glyphs :: The number of glyphs in the face. If the */ + /* face is scalable and has sbits (see */ + /* `num_fixed_sizes'), it is set to the number */ + /* of outline glyphs. */ + /* */ + /* For CID-keyed fonts, this value gives the */ + /* highest CID used in the font. */ + /* */ + /* family_name :: The face's family name. This is an ASCII */ + /* string, usually in English, which describes */ + /* the typeface's family (like `Times New */ + /* Roman', `Bodoni', `Garamond', etc). This */ + /* is a least common denominator used to list */ + /* fonts. Some formats (TrueType & OpenType) */ + /* provide localized and Unicode versions of */ + /* this string. Applications should use the */ + /* format specific interface to access them. */ + /* Can be NULL (e.g., in fonts embedded in a */ + /* PDF file). */ + /* */ + /* style_name :: The face's style name. This is an ASCII */ + /* string, usually in English, which describes */ + /* the typeface's style (like `Italic', */ + /* `Bold', `Condensed', etc). Not all font */ + /* formats provide a style name, so this field */ + /* is optional, and can be set to NULL. As */ + /* for `family_name', some formats provide */ + /* localized and Unicode versions of this */ + /* string. Applications should use the format */ + /* specific interface to access them. */ + /* */ + /* num_fixed_sizes :: The number of bitmap strikes in the face. */ + /* Even if the face is scalable, there might */ + /* still be bitmap strikes, which are called */ + /* `sbits' in that case. */ + /* */ + /* available_sizes :: An array of @FT_Bitmap_Size for all bitmap */ + /* strikes in the face. It is set to NULL if */ + /* there is no bitmap strike. */ + /* */ + /* num_charmaps :: The number of charmaps in the face. */ + /* */ + /* charmaps :: An array of the charmaps of the face. */ + /* */ + /* generic :: A field reserved for client uses. See the */ + /* @FT_Generic type description. */ + /* */ + /* bbox :: The font bounding box. Coordinates are */ + /* expressed in font units (see */ + /* `units_per_EM'). The box is large enough */ + /* to contain any glyph from the font. Thus, */ + /* `bbox.yMax' can be seen as the `maximal */ + /* ascender', and `bbox.yMin' as the `minimal */ + /* descender'. Only relevant for scalable */ + /* formats. */ + /* */ + /* Note that the bounding box might be off by */ + /* (at least) one pixel for hinted fonts. See */ + /* @FT_Size_Metrics for further discussion. */ + /* */ + /* units_per_EM :: The number of font units per EM square for */ + /* this face. This is typically 2048 for */ + /* TrueType fonts, and 1000 for Type~1 fonts. */ + /* Only relevant for scalable formats. */ + /* */ + /* ascender :: The typographic ascender of the face, */ + /* expressed in font units. For font formats */ + /* not having this information, it is set to */ + /* `bbox.yMax'. Only relevant for scalable */ + /* formats. */ + /* */ + /* descender :: The typographic descender of the face, */ + /* expressed in font units. For font formats */ + /* not having this information, it is set to */ + /* `bbox.yMin'. Note that this field is */ + /* usually negative. Only relevant for */ + /* scalable formats. */ + /* */ + /* height :: The height is the vertical distance */ + /* between two consecutive baselines, */ + /* expressed in font units. It is always */ + /* positive. Only relevant for scalable */ + /* formats. */ + /* */ + /* max_advance_width :: The maximal advance width, in font units, */ + /* for all glyphs in this face. This can be */ + /* used to make word wrapping computations */ + /* faster. Only relevant for scalable */ + /* formats. */ + /* */ + /* max_advance_height :: The maximal advance height, in font units, */ + /* for all glyphs in this face. This is only */ + /* relevant for vertical layouts, and is set */ + /* to `height' for fonts that do not provide */ + /* vertical metrics. Only relevant for */ + /* scalable formats. */ + /* */ + /* underline_position :: The position, in font units, of the */ + /* underline line for this face. It is the */ + /* center of the underlining stem. Only */ + /* relevant for scalable formats. */ + /* */ + /* underline_thickness :: The thickness, in font units, of the */ + /* underline for this face. Only relevant for */ + /* scalable formats. */ + /* */ + /* glyph :: The face's associated glyph slot(s). */ + /* */ + /* size :: The current active size for this face. */ + /* */ + /* charmap :: The current active charmap for this face. */ + /* */ + /* <Note> */ + /* Fields may be changed after a call to @FT_Attach_File or */ + /* @FT_Attach_Stream. */ + /* */ + typedef struct FT_FaceRec_ + { + FT_Long num_faces; + FT_Long face_index; + + FT_Long face_flags; + FT_Long style_flags; + + FT_Long num_glyphs; + + FT_String* family_name; + FT_String* style_name; + + FT_Int num_fixed_sizes; + FT_Bitmap_Size* available_sizes; + + FT_Int num_charmaps; + FT_CharMap* charmaps; + + FT_Generic generic; + + /*# The following member variables (down to `underline_thickness') */ + /*# are only relevant to scalable outlines; cf. @FT_Bitmap_Size */ + /*# for bitmap fonts. */ + FT_BBox bbox; + + FT_UShort units_per_EM; + FT_Short ascender; + FT_Short descender; + FT_Short height; + + FT_Short max_advance_width; + FT_Short max_advance_height; + + FT_Short underline_position; + FT_Short underline_thickness; + + FT_GlyphSlot glyph; + FT_Size size; + FT_CharMap charmap; + + /*@private begin */ + + FT_Driver driver; + FT_Memory memory; + FT_Stream stream; + + FT_ListRec sizes_list; + + FT_Generic autohint; /* face-specific auto-hinter data */ + void* extensions; /* unused */ + + FT_Face_Internal internal; + + /*@private end */ + + } FT_FaceRec; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_FACE_FLAG_XXX */ + /* */ + /* <Description> */ + /* A list of bit flags used in the `face_flags' field of the */ + /* @FT_FaceRec structure. They inform client applications of */ + /* properties of the corresponding face. */ + /* */ + /* <Values> */ + /* FT_FACE_FLAG_SCALABLE :: */ + /* Indicates that the face contains outline glyphs. This doesn't */ + /* prevent bitmap strikes, i.e., a face can have both this and */ + /* and @FT_FACE_FLAG_FIXED_SIZES set. */ + /* */ + /* FT_FACE_FLAG_FIXED_SIZES :: */ + /* Indicates that the face contains bitmap strikes. See also the */ + /* `num_fixed_sizes' and `available_sizes' fields of @FT_FaceRec. */ + /* */ + /* FT_FACE_FLAG_FIXED_WIDTH :: */ + /* Indicates that the face contains fixed-width characters (like */ + /* Courier, Lucido, MonoType, etc.). */ + /* */ + /* FT_FACE_FLAG_SFNT :: */ + /* Indicates that the face uses the `sfnt' storage scheme. For */ + /* now, this means TrueType and OpenType. */ + /* */ + /* FT_FACE_FLAG_HORIZONTAL :: */ + /* Indicates that the face contains horizontal glyph metrics. This */ + /* should be set for all common formats. */ + /* */ + /* FT_FACE_FLAG_VERTICAL :: */ + /* Indicates that the face contains vertical glyph metrics. This */ + /* is only available in some formats, not all of them. */ + /* */ + /* FT_FACE_FLAG_KERNING :: */ + /* Indicates that the face contains kerning information. If set, */ + /* the kerning distance can be retrieved through the function */ + /* @FT_Get_Kerning. Otherwise the function always return the */ + /* vector (0,0). Note that FreeType doesn't handle kerning data */ + /* from the `GPOS' table (as present in some OpenType fonts). */ + /* */ + /* FT_FACE_FLAG_FAST_GLYPHS :: */ + /* THIS FLAG IS DEPRECATED. DO NOT USE OR TEST IT. */ + /* */ + /* FT_FACE_FLAG_MULTIPLE_MASTERS :: */ + /* Indicates that the font contains multiple masters and is capable */ + /* of interpolating between them. See the multiple-masters */ + /* specific API for details. */ + /* */ + /* FT_FACE_FLAG_GLYPH_NAMES :: */ + /* Indicates that the font contains glyph names that can be */ + /* retrieved through @FT_Get_Glyph_Name. Note that some TrueType */ + /* fonts contain broken glyph name tables. Use the function */ + /* @FT_Has_PS_Glyph_Names when needed. */ + /* */ + /* FT_FACE_FLAG_EXTERNAL_STREAM :: */ + /* Used internally by FreeType to indicate that a face's stream was */ + /* provided by the client application and should not be destroyed */ + /* when @FT_Done_Face is called. Don't read or test this flag. */ + /* */ + /* FT_FACE_FLAG_HINTER :: */ + /* Set if the font driver has a hinting machine of its own. For */ + /* example, with TrueType fonts, it makes sense to use data from */ + /* the SFNT `gasp' table only if the native TrueType hinting engine */ + /* (with the bytecode interpreter) is available and active. */ + /* */ + /* FT_FACE_FLAG_CID_KEYED :: */ + /* Set if the font is CID-keyed. In that case, the font is not */ + /* accessed by glyph indices but by CID values. For subsetted */ + /* CID-keyed fonts this has the consequence that not all index */ + /* values are a valid argument to FT_Load_Glyph. Only the CID */ + /* values for which corresponding glyphs in the subsetted font */ + /* exist make FT_Load_Glyph return successfully; in all other cases */ + /* you get an `FT_Err_Invalid_Argument' error. */ + /* */ + /* Note that CID-keyed fonts which are in an SFNT wrapper don't */ + /* have this flag set since the glyphs are accessed in the normal */ + /* way (using contiguous indices); the `CID-ness' isn't visible to */ + /* the application. */ + /* */ + /* FT_FACE_FLAG_TRICKY :: */ + /* Set if the font is `tricky', this is, it always needs the */ + /* font format's native hinting engine to get a reasonable result. */ + /* A typical example is the Chinese font `mingli.ttf' which uses */ + /* TrueType bytecode instructions to move and scale all of its */ + /* subglyphs. */ + /* */ + /* It is not possible to autohint such fonts using */ + /* @FT_LOAD_FORCE_AUTOHINT; it will also ignore */ + /* @FT_LOAD_NO_HINTING. You have to set both @FT_LOAD_NO_HINTING */ + /* and @FT_LOAD_NO_AUTOHINT to really disable hinting; however, you */ + /* probably never want this except for demonstration purposes. */ + /* */ + /* Currently, there are about a dozen TrueType fonts in the list of */ + /* tricky fonts; they are hard-coded in file `ttobjs.c'. */ + /* */ +#define FT_FACE_FLAG_SCALABLE ( 1L << 0 ) +#define FT_FACE_FLAG_FIXED_SIZES ( 1L << 1 ) +#define FT_FACE_FLAG_FIXED_WIDTH ( 1L << 2 ) +#define FT_FACE_FLAG_SFNT ( 1L << 3 ) +#define FT_FACE_FLAG_HORIZONTAL ( 1L << 4 ) +#define FT_FACE_FLAG_VERTICAL ( 1L << 5 ) +#define FT_FACE_FLAG_KERNING ( 1L << 6 ) +#define FT_FACE_FLAG_FAST_GLYPHS ( 1L << 7 ) +#define FT_FACE_FLAG_MULTIPLE_MASTERS ( 1L << 8 ) +#define FT_FACE_FLAG_GLYPH_NAMES ( 1L << 9 ) +#define FT_FACE_FLAG_EXTERNAL_STREAM ( 1L << 10 ) +#define FT_FACE_FLAG_HINTER ( 1L << 11 ) +#define FT_FACE_FLAG_CID_KEYED ( 1L << 12 ) +#define FT_FACE_FLAG_TRICKY ( 1L << 13 ) + + + /************************************************************************* + * + * @macro: + * FT_HAS_HORIZONTAL( face ) + * + * @description: + * A macro that returns true whenever a face object contains + * horizontal metrics (this is true for all font formats though). + * + * @also: + * @FT_HAS_VERTICAL can be used to check for vertical metrics. + * + */ +#define FT_HAS_HORIZONTAL( face ) \ + ( face->face_flags & FT_FACE_FLAG_HORIZONTAL ) + + + /************************************************************************* + * + * @macro: + * FT_HAS_VERTICAL( face ) + * + * @description: + * A macro that returns true whenever a face object contains vertical + * metrics. + * + */ +#define FT_HAS_VERTICAL( face ) \ + ( face->face_flags & FT_FACE_FLAG_VERTICAL ) + + + /************************************************************************* + * + * @macro: + * FT_HAS_KERNING( face ) + * + * @description: + * A macro that returns true whenever a face object contains kerning + * data that can be accessed with @FT_Get_Kerning. + * + */ +#define FT_HAS_KERNING( face ) \ + ( face->face_flags & FT_FACE_FLAG_KERNING ) + + + /************************************************************************* + * + * @macro: + * FT_IS_SCALABLE( face ) + * + * @description: + * A macro that returns true whenever a face object contains a scalable + * font face (true for TrueType, Type~1, Type~42, CID, OpenType/CFF, + * and PFR font formats. + * + */ +#define FT_IS_SCALABLE( face ) \ + ( face->face_flags & FT_FACE_FLAG_SCALABLE ) + + + /************************************************************************* + * + * @macro: + * FT_IS_SFNT( face ) + * + * @description: + * A macro that returns true whenever a face object contains a font + * whose format is based on the SFNT storage scheme. This usually + * means: TrueType fonts, OpenType fonts, as well as SFNT-based embedded + * bitmap fonts. + * + * If this macro is true, all functions defined in @FT_SFNT_NAMES_H and + * @FT_TRUETYPE_TABLES_H are available. + * + */ +#define FT_IS_SFNT( face ) \ + ( face->face_flags & FT_FACE_FLAG_SFNT ) + + + /************************************************************************* + * + * @macro: + * FT_IS_FIXED_WIDTH( face ) + * + * @description: + * A macro that returns true whenever a face object contains a font face + * that contains fixed-width (or `monospace', `fixed-pitch', etc.) + * glyphs. + * + */ +#define FT_IS_FIXED_WIDTH( face ) \ + ( face->face_flags & FT_FACE_FLAG_FIXED_WIDTH ) + + + /************************************************************************* + * + * @macro: + * FT_HAS_FIXED_SIZES( face ) + * + * @description: + * A macro that returns true whenever a face object contains some + * embedded bitmaps. See the `available_sizes' field of the + * @FT_FaceRec structure. + * + */ +#define FT_HAS_FIXED_SIZES( face ) \ + ( face->face_flags & FT_FACE_FLAG_FIXED_SIZES ) + + + /************************************************************************* + * + * @macro: + * FT_HAS_FAST_GLYPHS( face ) + * + * @description: + * Deprecated. + * + */ +#define FT_HAS_FAST_GLYPHS( face ) 0 + + + /************************************************************************* + * + * @macro: + * FT_HAS_GLYPH_NAMES( face ) + * + * @description: + * A macro that returns true whenever a face object contains some glyph + * names that can be accessed through @FT_Get_Glyph_Name. + * + */ +#define FT_HAS_GLYPH_NAMES( face ) \ + ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) + + + /************************************************************************* + * + * @macro: + * FT_HAS_MULTIPLE_MASTERS( face ) + * + * @description: + * A macro that returns true whenever a face object contains some + * multiple masters. The functions provided by @FT_MULTIPLE_MASTERS_H + * are then available to choose the exact design you want. + * + */ +#define FT_HAS_MULTIPLE_MASTERS( face ) \ + ( face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS ) + + + /************************************************************************* + * + * @macro: + * FT_IS_CID_KEYED( face ) + * + * @description: + * A macro that returns true whenever a face object contains a CID-keyed + * font. See the discussion of @FT_FACE_FLAG_CID_KEYED for more + * details. + * + * If this macro is true, all functions defined in @FT_CID_H are + * available. + * + */ +#define FT_IS_CID_KEYED( face ) \ + ( face->face_flags & FT_FACE_FLAG_CID_KEYED ) + + + /************************************************************************* + * + * @macro: + * FT_IS_TRICKY( face ) + * + * @description: + * A macro that returns true whenever a face represents a `tricky' font. + * See the discussion of @FT_FACE_FLAG_TRICKY for more details. + * + */ +#define FT_IS_TRICKY( face ) \ + ( face->face_flags & FT_FACE_FLAG_TRICKY ) + + + /*************************************************************************/ + /* */ + /* <Const> */ + /* FT_STYLE_FLAG_XXX */ + /* */ + /* <Description> */ + /* A list of bit-flags used to indicate the style of a given face. */ + /* These are used in the `style_flags' field of @FT_FaceRec. */ + /* */ + /* <Values> */ + /* FT_STYLE_FLAG_ITALIC :: */ + /* Indicates that a given face style is italic or oblique. */ + /* */ + /* FT_STYLE_FLAG_BOLD :: */ + /* Indicates that a given face is bold. */ + /* */ + /* <Note> */ + /* The style information as provided by FreeType is very basic. More */ + /* details are beyond the scope and should be done on a higher level */ + /* (for example, by analyzing various fields of the `OS/2' table in */ + /* SFNT based fonts). */ + /* */ +#define FT_STYLE_FLAG_ITALIC ( 1 << 0 ) +#define FT_STYLE_FLAG_BOLD ( 1 << 1 ) + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Size_Internal */ + /* */ + /* <Description> */ + /* An opaque handle to an `FT_Size_InternalRec' structure, used to */ + /* model private data of a given @FT_Size object. */ + /* */ + typedef struct FT_Size_InternalRec_* FT_Size_Internal; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Size_Metrics */ + /* */ + /* <Description> */ + /* The size metrics structure gives the metrics of a size object. */ + /* */ + /* <Fields> */ + /* x_ppem :: The width of the scaled EM square in pixels, hence */ + /* the term `ppem' (pixels per EM). It is also */ + /* referred to as `nominal width'. */ + /* */ + /* y_ppem :: The height of the scaled EM square in pixels, */ + /* hence the term `ppem' (pixels per EM). It is also */ + /* referred to as `nominal height'. */ + /* */ + /* x_scale :: A 16.16 fractional scaling value used to convert */ + /* horizontal metrics from font units to 26.6 */ + /* fractional pixels. Only relevant for scalable */ + /* font formats. */ + /* */ + /* y_scale :: A 16.16 fractional scaling value used to convert */ + /* vertical metrics from font units to 26.6 */ + /* fractional pixels. Only relevant for scalable */ + /* font formats. */ + /* */ + /* ascender :: The ascender in 26.6 fractional pixels. See */ + /* @FT_FaceRec for the details. */ + /* */ + /* descender :: The descender in 26.6 fractional pixels. See */ + /* @FT_FaceRec for the details. */ + /* */ + /* height :: The height in 26.6 fractional pixels. See */ + /* @FT_FaceRec for the details. */ + /* */ + /* max_advance :: The maximal advance width in 26.6 fractional */ + /* pixels. See @FT_FaceRec for the details. */ + /* */ + /* <Note> */ + /* The scaling values, if relevant, are determined first during a */ + /* size changing operation. The remaining fields are then set by the */ + /* driver. For scalable formats, they are usually set to scaled */ + /* values of the corresponding fields in @FT_FaceRec. */ + /* */ + /* Note that due to glyph hinting, these values might not be exact */ + /* for certain fonts. Thus they must be treated as unreliable */ + /* with an error margin of at least one pixel! */ + /* */ + /* Indeed, the only way to get the exact metrics is to render _all_ */ + /* glyphs. As this would be a definite performance hit, it is up to */ + /* client applications to perform such computations. */ + /* */ + /* The FT_Size_Metrics structure is valid for bitmap fonts also. */ + /* */ + typedef struct FT_Size_Metrics_ + { + FT_UShort x_ppem; /* horizontal pixels per EM */ + FT_UShort y_ppem; /* vertical pixels per EM */ + + FT_Fixed x_scale; /* scaling values used to convert font */ + FT_Fixed y_scale; /* units to 26.6 fractional pixels */ + + FT_Pos ascender; /* ascender in 26.6 frac. pixels */ + FT_Pos descender; /* descender in 26.6 frac. pixels */ + FT_Pos height; /* text height in 26.6 frac. pixels */ + FT_Pos max_advance; /* max horizontal advance, in 26.6 pixels */ + + } FT_Size_Metrics; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_SizeRec */ + /* */ + /* <Description> */ + /* FreeType root size class structure. A size object models a face */ + /* object at a given size. */ + /* */ + /* <Fields> */ + /* face :: Handle to the parent face object. */ + /* */ + /* generic :: A typeless pointer, which is unused by the FreeType */ + /* library or any of its drivers. It can be used by */ + /* client applications to link their own data to each size */ + /* object. */ + /* */ + /* metrics :: Metrics for this size object. This field is read-only. */ + /* */ + typedef struct FT_SizeRec_ + { + FT_Face face; /* parent face object */ + FT_Generic generic; /* generic pointer for client uses */ + FT_Size_Metrics metrics; /* size metrics */ + FT_Size_Internal internal; + + } FT_SizeRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_SubGlyph */ + /* */ + /* <Description> */ + /* The subglyph structure is an internal object used to describe */ + /* subglyphs (for example, in the case of composites). */ + /* */ + /* <Note> */ + /* The subglyph implementation is not part of the high-level API, */ + /* hence the forward structure declaration. */ + /* */ + /* You can however retrieve subglyph information with */ + /* @FT_Get_SubGlyph_Info. */ + /* */ + typedef struct FT_SubGlyphRec_* FT_SubGlyph; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Slot_Internal */ + /* */ + /* <Description> */ + /* An opaque handle to an `FT_Slot_InternalRec' structure, used to */ + /* model private data of a given @FT_GlyphSlot object. */ + /* */ + typedef struct FT_Slot_InternalRec_* FT_Slot_Internal; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_GlyphSlotRec */ + /* */ + /* <Description> */ + /* FreeType root glyph slot class structure. A glyph slot is a */ + /* container where individual glyphs can be loaded, be they in */ + /* outline or bitmap format. */ + /* */ + /* <Fields> */ + /* library :: A handle to the FreeType library instance */ + /* this slot belongs to. */ + /* */ + /* face :: A handle to the parent face object. */ + /* */ + /* next :: In some cases (like some font tools), several */ + /* glyph slots per face object can be a good */ + /* thing. As this is rare, the glyph slots are */ + /* listed through a direct, single-linked list */ + /* using its `next' field. */ + /* */ + /* generic :: A typeless pointer which is unused by the */ + /* FreeType library or any of its drivers. It */ + /* can be used by client applications to link */ + /* their own data to each glyph slot object. */ + /* */ + /* metrics :: The metrics of the last loaded glyph in the */ + /* slot. The returned values depend on the last */ + /* load flags (see the @FT_Load_Glyph API */ + /* function) and can be expressed either in 26.6 */ + /* fractional pixels or font units. */ + /* */ + /* Note that even when the glyph image is */ + /* transformed, the metrics are not. */ + /* */ + /* linearHoriAdvance :: The advance width of the unhinted glyph. */ + /* Its value is expressed in 16.16 fractional */ + /* pixels, unless @FT_LOAD_LINEAR_DESIGN is set */ + /* when loading the glyph. This field can be */ + /* important to perform correct WYSIWYG layout. */ + /* Only relevant for outline glyphs. */ + /* */ + /* linearVertAdvance :: The advance height of the unhinted glyph. */ + /* Its value is expressed in 16.16 fractional */ + /* pixels, unless @FT_LOAD_LINEAR_DESIGN is set */ + /* when loading the glyph. This field can be */ + /* important to perform correct WYSIWYG layout. */ + /* Only relevant for outline glyphs. */ + /* */ + /* advance :: This shorthand is, depending on */ + /* @FT_LOAD_IGNORE_TRANSFORM, the transformed */ + /* advance width for the glyph (in 26.6 */ + /* fractional pixel format). As specified with */ + /* @FT_LOAD_VERTICAL_LAYOUT, it uses either the */ + /* `horiAdvance' or the `vertAdvance' value of */ + /* `metrics' field. */ + /* */ + /* format :: This field indicates the format of the image */ + /* contained in the glyph slot. Typically */ + /* @FT_GLYPH_FORMAT_BITMAP, */ + /* @FT_GLYPH_FORMAT_OUTLINE, or */ + /* @FT_GLYPH_FORMAT_COMPOSITE, but others are */ + /* possible. */ + /* */ + /* bitmap :: This field is used as a bitmap descriptor */ + /* when the slot format is */ + /* @FT_GLYPH_FORMAT_BITMAP. Note that the */ + /* address and content of the bitmap buffer can */ + /* change between calls of @FT_Load_Glyph and a */ + /* few other functions. */ + /* */ + /* bitmap_left :: This is the bitmap's left bearing expressed */ + /* in integer pixels. Of course, this is only */ + /* valid if the format is */ + /* @FT_GLYPH_FORMAT_BITMAP. */ + /* */ + /* bitmap_top :: This is the bitmap's top bearing expressed in */ + /* integer pixels. Remember that this is the */ + /* distance from the baseline to the top-most */ + /* glyph scanline, upwards y~coordinates being */ + /* *positive*. */ + /* */ + /* outline :: The outline descriptor for the current glyph */ + /* image if its format is */ + /* @FT_GLYPH_FORMAT_OUTLINE. Once a glyph is */ + /* loaded, `outline' can be transformed, */ + /* distorted, embolded, etc. However, it must */ + /* not be freed. */ + /* */ + /* num_subglyphs :: The number of subglyphs in a composite glyph. */ + /* This field is only valid for the composite */ + /* glyph format that should normally only be */ + /* loaded with the @FT_LOAD_NO_RECURSE flag. */ + /* For now this is internal to FreeType. */ + /* */ + /* subglyphs :: An array of subglyph descriptors for */ + /* composite glyphs. There are `num_subglyphs' */ + /* elements in there. Currently internal to */ + /* FreeType. */ + /* */ + /* control_data :: Certain font drivers can also return the */ + /* control data for a given glyph image (e.g. */ + /* TrueType bytecode, Type~1 charstrings, etc.). */ + /* This field is a pointer to such data. */ + /* */ + /* control_len :: This is the length in bytes of the control */ + /* data. */ + /* */ + /* other :: Really wicked formats can use this pointer to */ + /* present their own glyph image to client */ + /* applications. Note that the application */ + /* needs to know about the image format. */ + /* */ + /* lsb_delta :: The difference between hinted and unhinted */ + /* left side bearing while autohinting is */ + /* active. Zero otherwise. */ + /* */ + /* rsb_delta :: The difference between hinted and unhinted */ + /* right side bearing while autohinting is */ + /* active. Zero otherwise. */ + /* */ + /* <Note> */ + /* If @FT_Load_Glyph is called with default flags (see */ + /* @FT_LOAD_DEFAULT) the glyph image is loaded in the glyph slot in */ + /* its native format (e.g., an outline glyph for TrueType and Type~1 */ + /* formats). */ + /* */ + /* This image can later be converted into a bitmap by calling */ + /* @FT_Render_Glyph. This function finds the current renderer for */ + /* the native image's format, then invokes it. */ + /* */ + /* The renderer is in charge of transforming the native image through */ + /* the slot's face transformation fields, then converting it into a */ + /* bitmap that is returned in `slot->bitmap'. */ + /* */ + /* Note that `slot->bitmap_left' and `slot->bitmap_top' are also used */ + /* to specify the position of the bitmap relative to the current pen */ + /* position (e.g., coordinates (0,0) on the baseline). Of course, */ + /* `slot->format' is also changed to @FT_GLYPH_FORMAT_BITMAP. */ + /* */ + /* <Note> */ + /* Here a small pseudo code fragment which shows how to use */ + /* `lsb_delta' and `rsb_delta': */ + /* */ + /* { */ + /* FT_Pos origin_x = 0; */ + /* FT_Pos prev_rsb_delta = 0; */ + /* */ + /* */ + /* for all glyphs do */ + /* <compute kern between current and previous glyph and add it to */ + /* `origin_x'> */ + /* */ + /* <load glyph with `FT_Load_Glyph'> */ + /* */ + /* if ( prev_rsb_delta - face->glyph->lsb_delta >= 32 ) */ + /* origin_x -= 64; */ + /* else if ( prev_rsb_delta - face->glyph->lsb_delta < -32 ) */ + /* origin_x += 64; */ + /* */ + /* prev_rsb_delta = face->glyph->rsb_delta; */ + /* */ + /* <save glyph image, or render glyph, or ...> */ + /* */ + /* origin_x += face->glyph->advance.x; */ + /* endfor */ + /* } */ + /* */ + typedef struct FT_GlyphSlotRec_ + { + FT_Library library; + FT_Face face; + FT_GlyphSlot next; + FT_UInt reserved; /* retained for binary compatibility */ + FT_Generic generic; + + FT_Glyph_Metrics metrics; + FT_Fixed linearHoriAdvance; + FT_Fixed linearVertAdvance; + FT_Vector advance; + + FT_Glyph_Format format; + + FT_Bitmap bitmap; + FT_Int bitmap_left; + FT_Int bitmap_top; + + FT_Outline outline; + + FT_UInt num_subglyphs; + FT_SubGlyph subglyphs; + + void* control_data; + long control_len; + + FT_Pos lsb_delta; + FT_Pos rsb_delta; + + void* other; + + FT_Slot_Internal internal; + + } FT_GlyphSlotRec; + + + /*************************************************************************/ + /*************************************************************************/ + /* */ + /* F U N C T I O N S */ + /* */ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Init_FreeType */ + /* */ + /* <Description> */ + /* Initialize a new FreeType library object. The set of modules */ + /* that are registered by this function is determined at build time. */ + /* */ + /* <Output> */ + /* alibrary :: A handle to a new library object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* In case you want to provide your own memory allocating routines, */ + /* use @FT_New_Library instead, followed by a call to */ + /* @FT_Add_Default_Modules (or a series of calls to @FT_Add_Module). */ + /* */ + /* For multi-threading applications each thread should have its own */ + /* FT_Library object. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Init_FreeType( FT_Library *alibrary ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_FreeType */ + /* */ + /* <Description> */ + /* Destroy a given FreeType library object and all of its children, */ + /* including resources, drivers, faces, sizes, etc. */ + /* */ + /* <Input> */ + /* library :: A handle to the target library object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Done_FreeType( FT_Library library ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_OPEN_XXX */ + /* */ + /* <Description> */ + /* A list of bit-field constants used within the `flags' field of the */ + /* @FT_Open_Args structure. */ + /* */ + /* <Values> */ + /* FT_OPEN_MEMORY :: This is a memory-based stream. */ + /* */ + /* FT_OPEN_STREAM :: Copy the stream from the `stream' field. */ + /* */ + /* FT_OPEN_PATHNAME :: Create a new input stream from a C~path */ + /* name. */ + /* */ + /* FT_OPEN_DRIVER :: Use the `driver' field. */ + /* */ + /* FT_OPEN_PARAMS :: Use the `num_params' and `params' fields. */ + /* */ + /* ft_open_memory :: Deprecated; use @FT_OPEN_MEMORY instead. */ + /* */ + /* ft_open_stream :: Deprecated; use @FT_OPEN_STREAM instead. */ + /* */ + /* ft_open_pathname :: Deprecated; use @FT_OPEN_PATHNAME instead. */ + /* */ + /* ft_open_driver :: Deprecated; use @FT_OPEN_DRIVER instead. */ + /* */ + /* ft_open_params :: Deprecated; use @FT_OPEN_PARAMS instead. */ + /* */ + /* <Note> */ + /* The `FT_OPEN_MEMORY', `FT_OPEN_STREAM', and `FT_OPEN_PATHNAME' */ + /* flags are mutually exclusive. */ + /* */ +#define FT_OPEN_MEMORY 0x1 +#define FT_OPEN_STREAM 0x2 +#define FT_OPEN_PATHNAME 0x4 +#define FT_OPEN_DRIVER 0x8 +#define FT_OPEN_PARAMS 0x10 + +#define ft_open_memory FT_OPEN_MEMORY /* deprecated */ +#define ft_open_stream FT_OPEN_STREAM /* deprecated */ +#define ft_open_pathname FT_OPEN_PATHNAME /* deprecated */ +#define ft_open_driver FT_OPEN_DRIVER /* deprecated */ +#define ft_open_params FT_OPEN_PARAMS /* deprecated */ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Parameter */ + /* */ + /* <Description> */ + /* A simple structure used to pass more or less generic parameters to */ + /* @FT_Open_Face. */ + /* */ + /* <Fields> */ + /* tag :: A four-byte identification tag. */ + /* */ + /* data :: A pointer to the parameter data. */ + /* */ + /* <Note> */ + /* The ID and function of parameters are driver-specific. See the */ + /* various FT_PARAM_TAG_XXX flags for more information. */ + /* */ + typedef struct FT_Parameter_ + { + FT_ULong tag; + FT_Pointer data; + + } FT_Parameter; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Open_Args */ + /* */ + /* <Description> */ + /* A structure used to indicate how to open a new font file or */ + /* stream. A pointer to such a structure can be used as a parameter */ + /* for the functions @FT_Open_Face and @FT_Attach_Stream. */ + /* */ + /* <Fields> */ + /* flags :: A set of bit flags indicating how to use the */ + /* structure. */ + /* */ + /* memory_base :: The first byte of the file in memory. */ + /* */ + /* memory_size :: The size in bytes of the file in memory. */ + /* */ + /* pathname :: A pointer to an 8-bit file pathname. */ + /* */ + /* stream :: A handle to a source stream object. */ + /* */ + /* driver :: This field is exclusively used by @FT_Open_Face; */ + /* it simply specifies the font driver to use to open */ + /* the face. If set to~0, FreeType tries to load the */ + /* face with each one of the drivers in its list. */ + /* */ + /* num_params :: The number of extra parameters. */ + /* */ + /* params :: Extra parameters passed to the font driver when */ + /* opening a new face. */ + /* */ + /* <Note> */ + /* The stream type is determined by the contents of `flags' which */ + /* are tested in the following order by @FT_Open_Face: */ + /* */ + /* If the `FT_OPEN_MEMORY' bit is set, assume that this is a */ + /* memory file of `memory_size' bytes, located at `memory_address'. */ + /* The data are are not copied, and the client is responsible for */ + /* releasing and destroying them _after_ the corresponding call to */ + /* @FT_Done_Face. */ + /* */ + /* Otherwise, if the `FT_OPEN_STREAM' bit is set, assume that a */ + /* custom input stream `stream' is used. */ + /* */ + /* Otherwise, if the `FT_OPEN_PATHNAME' bit is set, assume that this */ + /* is a normal file and use `pathname' to open it. */ + /* */ + /* If the `FT_OPEN_DRIVER' bit is set, @FT_Open_Face only tries to */ + /* open the file with the driver whose handler is in `driver'. */ + /* */ + /* If the `FT_OPEN_PARAMS' bit is set, the parameters given by */ + /* `num_params' and `params' is used. They are ignored otherwise. */ + /* */ + /* Ideally, both the `pathname' and `params' fields should be tagged */ + /* as `const'; this is missing for API backwards compatibility. In */ + /* other words, applications should treat them as read-only. */ + /* */ + typedef struct FT_Open_Args_ + { + FT_UInt flags; + const FT_Byte* memory_base; + FT_Long memory_size; + FT_String* pathname; + FT_Stream stream; + FT_Module driver; + FT_Int num_params; + FT_Parameter* params; + + } FT_Open_Args; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face */ + /* */ + /* <Description> */ + /* This function calls @FT_Open_Face to open a font by its pathname. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library resource. */ + /* */ + /* <Input> */ + /* pathname :: A path to the font file. */ + /* */ + /* face_index :: The index of the face within the font. The first */ + /* face has index~0. */ + /* */ + /* <Output> */ + /* aface :: A handle to a new face object. If `face_index' is */ + /* greater than or equal to zero, it must be non-NULL. */ + /* See @FT_Open_Face for more details. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Face( FT_Library library, + const char* filepathname, + FT_Long face_index, + FT_Face *aface ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Memory_Face */ + /* */ + /* <Description> */ + /* This function calls @FT_Open_Face to open a font which has been */ + /* loaded into memory. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library resource. */ + /* */ + /* <Input> */ + /* file_base :: A pointer to the beginning of the font data. */ + /* */ + /* file_size :: The size of the memory chunk used by the font data. */ + /* */ + /* face_index :: The index of the face within the font. The first */ + /* face has index~0. */ + /* */ + /* <Output> */ + /* aface :: A handle to a new face object. If `face_index' is */ + /* greater than or equal to zero, it must be non-NULL. */ + /* See @FT_Open_Face for more details. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* You must not deallocate the memory before calling @FT_Done_Face. */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Memory_Face( FT_Library library, + const FT_Byte* file_base, + FT_Long file_size, + FT_Long face_index, + FT_Face *aface ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Open_Face */ + /* */ + /* <Description> */ + /* Create a face object from a given resource described by */ + /* @FT_Open_Args. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library resource. */ + /* */ + /* <Input> */ + /* args :: A pointer to an `FT_Open_Args' structure which must */ + /* be filled by the caller. */ + /* */ + /* face_index :: The index of the face within the font. The first */ + /* face has index~0. */ + /* */ + /* <Output> */ + /* aface :: A handle to a new face object. If `face_index' is */ + /* greater than or equal to zero, it must be non-NULL. */ + /* See note below. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* Unlike FreeType 1.x, this function automatically creates a glyph */ + /* slot for the face object which can be accessed directly through */ + /* `face->glyph'. */ + /* */ + /* FT_Open_Face can be used to quickly check whether the font */ + /* format of a given font resource is supported by FreeType. If the */ + /* `face_index' field is negative, the function's return value is~0 */ + /* if the font format is recognized, or non-zero otherwise; */ + /* the function returns a more or less empty face handle in `*aface' */ + /* (if `aface' isn't NULL). The only useful field in this special */ + /* case is `face->num_faces' which gives the number of faces within */ + /* the font file. After examination, the returned @FT_Face structure */ + /* should be deallocated with a call to @FT_Done_Face. */ + /* */ + /* Each new face object created with this function also owns a */ + /* default @FT_Size object, accessible as `face->size'. */ + /* */ + /* One @FT_Library instance can have multiple face objects, this is, */ + /* @FT_Open_Face and its siblings can be called multiple times using */ + /* the same `library' argument. */ + /* */ + /* See the discussion of reference counters in the description of */ + /* @FT_Reference_Face. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Open_Face( FT_Library library, + const FT_Open_Args* args, + FT_Long face_index, + FT_Face *aface ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Attach_File */ + /* */ + /* <Description> */ + /* This function calls @FT_Attach_Stream to attach a file. */ + /* */ + /* <InOut> */ + /* face :: The target face object. */ + /* */ + /* <Input> */ + /* filepathname :: The pathname. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Attach_File( FT_Face face, + const char* filepathname ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Attach_Stream */ + /* */ + /* <Description> */ + /* `Attach' data to a face object. Normally, this is used to read */ + /* additional information for the face object. For example, you can */ + /* attach an AFM file that comes with a Type~1 font to get the */ + /* kerning values and other metrics. */ + /* */ + /* <InOut> */ + /* face :: The target face object. */ + /* */ + /* <Input> */ + /* parameters :: A pointer to @FT_Open_Args which must be filled by */ + /* the caller. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The meaning of the `attach' (i.e., what really happens when the */ + /* new file is read) is not fixed by FreeType itself. It really */ + /* depends on the font format (and thus the font driver). */ + /* */ + /* Client applications are expected to know what they are doing */ + /* when invoking this function. Most drivers simply do not implement */ + /* file attachments. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Attach_Stream( FT_Face face, + FT_Open_Args* parameters ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Reference_Face */ + /* */ + /* <Description> */ + /* A counter gets initialized to~1 at the time an @FT_Face structure */ + /* is created. This function increments the counter. @FT_Done_Face */ + /* then only destroys a face if the counter is~1, otherwise it simply */ + /* decrements the counter. */ + /* */ + /* This function helps in managing life-cycles of structures which */ + /* reference @FT_Face objects. */ + /* */ + /* <Input> */ + /* face :: A handle to a target face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Since> */ + /* 2.4.2 */ + /* */ + FT_EXPORT( FT_Error ) + FT_Reference_Face( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_Face */ + /* */ + /* <Description> */ + /* Discard a given face object, as well as all of its child slots and */ + /* sizes. */ + /* */ + /* <Input> */ + /* face :: A handle to a target face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* See the discussion of reference counters in the description of */ + /* @FT_Reference_Face. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Done_Face( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Select_Size */ + /* */ + /* <Description> */ + /* Select a bitmap strike. */ + /* */ + /* <InOut> */ + /* face :: A handle to a target face object. */ + /* */ + /* <Input> */ + /* strike_index :: The index of the bitmap strike in the */ + /* `available_sizes' field of @FT_FaceRec structure. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Select_Size( FT_Face face, + FT_Int strike_index ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Size_Request_Type */ + /* */ + /* <Description> */ + /* An enumeration type that lists the supported size request types. */ + /* */ + /* <Values> */ + /* FT_SIZE_REQUEST_TYPE_NOMINAL :: */ + /* The nominal size. The `units_per_EM' field of @FT_FaceRec is */ + /* used to determine both scaling values. */ + /* */ + /* FT_SIZE_REQUEST_TYPE_REAL_DIM :: */ + /* The real dimension. The sum of the the `ascender' and (minus */ + /* of) the `descender' fields of @FT_FaceRec are used to determine */ + /* both scaling values. */ + /* */ + /* FT_SIZE_REQUEST_TYPE_BBOX :: */ + /* The font bounding box. The width and height of the `bbox' field */ + /* of @FT_FaceRec are used to determine the horizontal and vertical */ + /* scaling value, respectively. */ + /* */ + /* FT_SIZE_REQUEST_TYPE_CELL :: */ + /* The `max_advance_width' field of @FT_FaceRec is used to */ + /* determine the horizontal scaling value; the vertical scaling */ + /* value is determined the same way as */ + /* @FT_SIZE_REQUEST_TYPE_REAL_DIM does. Finally, both scaling */ + /* values are set to the smaller one. This type is useful if you */ + /* want to specify the font size for, say, a window of a given */ + /* dimension and 80x24 cells. */ + /* */ + /* FT_SIZE_REQUEST_TYPE_SCALES :: */ + /* Specify the scaling values directly. */ + /* */ + /* <Note> */ + /* The above descriptions only apply to scalable formats. For bitmap */ + /* formats, the behaviour is up to the driver. */ + /* */ + /* See the note section of @FT_Size_Metrics if you wonder how size */ + /* requesting relates to scaling values. */ + /* */ + typedef enum FT_Size_Request_Type_ + { + FT_SIZE_REQUEST_TYPE_NOMINAL, + FT_SIZE_REQUEST_TYPE_REAL_DIM, + FT_SIZE_REQUEST_TYPE_BBOX, + FT_SIZE_REQUEST_TYPE_CELL, + FT_SIZE_REQUEST_TYPE_SCALES, + + FT_SIZE_REQUEST_TYPE_MAX + + } FT_Size_Request_Type; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Size_RequestRec */ + /* */ + /* <Description> */ + /* A structure used to model a size request. */ + /* */ + /* <Fields> */ + /* type :: See @FT_Size_Request_Type. */ + /* */ + /* width :: The desired width. */ + /* */ + /* height :: The desired height. */ + /* */ + /* horiResolution :: The horizontal resolution. If set to zero, */ + /* `width' is treated as a 26.6 fractional pixel */ + /* value. */ + /* */ + /* vertResolution :: The vertical resolution. If set to zero, */ + /* `height' is treated as a 26.6 fractional pixel */ + /* value. */ + /* */ + /* <Note> */ + /* If `width' is zero, then the horizontal scaling value is set equal */ + /* to the vertical scaling value, and vice versa. */ + /* */ + typedef struct FT_Size_RequestRec_ + { + FT_Size_Request_Type type; + FT_Long width; + FT_Long height; + FT_UInt horiResolution; + FT_UInt vertResolution; + + } FT_Size_RequestRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Size_Request */ + /* */ + /* <Description> */ + /* A handle to a size request structure. */ + /* */ + typedef struct FT_Size_RequestRec_ *FT_Size_Request; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Request_Size */ + /* */ + /* <Description> */ + /* Resize the scale of the active @FT_Size object in a face. */ + /* */ + /* <InOut> */ + /* face :: A handle to a target face object. */ + /* */ + /* <Input> */ + /* req :: A pointer to a @FT_Size_RequestRec. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* Although drivers may select the bitmap strike matching the */ + /* request, you should not rely on this if you intend to select a */ + /* particular bitmap strike. Use @FT_Select_Size instead in that */ + /* case. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Request_Size( FT_Face face, + FT_Size_Request req ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Char_Size */ + /* */ + /* <Description> */ + /* This function calls @FT_Request_Size to request the nominal size */ + /* (in points). */ + /* */ + /* <InOut> */ + /* face :: A handle to a target face object. */ + /* */ + /* <Input> */ + /* char_width :: The nominal width, in 26.6 fractional points. */ + /* */ + /* char_height :: The nominal height, in 26.6 fractional points. */ + /* */ + /* horz_resolution :: The horizontal resolution in dpi. */ + /* */ + /* vert_resolution :: The vertical resolution in dpi. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* If either the character width or height is zero, it is set equal */ + /* to the other value. */ + /* */ + /* If either the horizontal or vertical resolution is zero, it is set */ + /* equal to the other value. */ + /* */ + /* A character width or height smaller than 1pt is set to 1pt; if */ + /* both resolution values are zero, they are set to 72dpi. */ + /* */ + /* Don't use this function if you are using the FreeType cache API. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_Char_Size( FT_Face face, + FT_F26Dot6 char_width, + FT_F26Dot6 char_height, + FT_UInt horz_resolution, + FT_UInt vert_resolution ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Pixel_Sizes */ + /* */ + /* <Description> */ + /* This function calls @FT_Request_Size to request the nominal size */ + /* (in pixels). */ + /* */ + /* <InOut> */ + /* face :: A handle to the target face object. */ + /* */ + /* <Input> */ + /* pixel_width :: The nominal width, in pixels. */ + /* */ + /* pixel_height :: The nominal height, in pixels. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_Pixel_Sizes( FT_Face face, + FT_UInt pixel_width, + FT_UInt pixel_height ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Load_Glyph */ + /* */ + /* <Description> */ + /* A function used to load a single glyph into the glyph slot of a */ + /* face object. */ + /* */ + /* <InOut> */ + /* face :: A handle to the target face object where the glyph */ + /* is loaded. */ + /* */ + /* <Input> */ + /* glyph_index :: The index of the glyph in the font file. For */ + /* CID-keyed fonts (either in PS or in CFF format) */ + /* this argument specifies the CID value. */ + /* */ + /* load_flags :: A flag indicating what to load for this glyph. The */ + /* @FT_LOAD_XXX constants can be used to control the */ + /* glyph loading process (e.g., whether the outline */ + /* should be scaled, whether to load bitmaps or not, */ + /* whether to hint the outline, etc). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The loaded glyph may be transformed. See @FT_Set_Transform for */ + /* the details. */ + /* */ + /* For subsetted CID-keyed fonts, `FT_Err_Invalid_Argument' is */ + /* returned for invalid CID values (this is, for CID values which */ + /* don't have a corresponding glyph in the font). See the discussion */ + /* of the @FT_FACE_FLAG_CID_KEYED flag for more details. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Load_Glyph( FT_Face face, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Load_Char */ + /* */ + /* <Description> */ + /* A function used to load a single glyph into the glyph slot of a */ + /* face object, according to its character code. */ + /* */ + /* <InOut> */ + /* face :: A handle to a target face object where the glyph */ + /* is loaded. */ + /* */ + /* <Input> */ + /* char_code :: The glyph's character code, according to the */ + /* current charmap used in the face. */ + /* */ + /* load_flags :: A flag indicating what to load for this glyph. The */ + /* @FT_LOAD_XXX constants can be used to control the */ + /* glyph loading process (e.g., whether the outline */ + /* should be scaled, whether to load bitmaps or not, */ + /* whether to hint the outline, etc). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* This function simply calls @FT_Get_Char_Index and @FT_Load_Glyph. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Load_Char( FT_Face face, + FT_ULong char_code, + FT_Int32 load_flags ); + + + /************************************************************************* + * + * @enum: + * FT_LOAD_XXX + * + * @description: + * A list of bit-field constants used with @FT_Load_Glyph to indicate + * what kind of operations to perform during glyph loading. + * + * @values: + * FT_LOAD_DEFAULT :: + * Corresponding to~0, this value is used as the default glyph load + * operation. In this case, the following happens: + * + * 1. FreeType looks for a bitmap for the glyph corresponding to the + * face's current size. If one is found, the function returns. + * The bitmap data can be accessed from the glyph slot (see note + * below). + * + * 2. If no embedded bitmap is searched or found, FreeType looks for a + * scalable outline. If one is found, it is loaded from the font + * file, scaled to device pixels, then `hinted' to the pixel grid + * in order to optimize it. The outline data can be accessed from + * the glyph slot (see note below). + * + * Note that by default, the glyph loader doesn't render outlines into + * bitmaps. The following flags are used to modify this default + * behaviour to more specific and useful cases. + * + * FT_LOAD_NO_SCALE :: + * Don't scale the outline glyph loaded, but keep it in font units. + * + * This flag implies @FT_LOAD_NO_HINTING and @FT_LOAD_NO_BITMAP, and + * unsets @FT_LOAD_RENDER. + * + * FT_LOAD_NO_HINTING :: + * Disable hinting. This generally generates `blurrier' bitmap glyph + * when the glyph is rendered in any of the anti-aliased modes. See + * also the note below. + * + * This flag is implied by @FT_LOAD_NO_SCALE. + * + * FT_LOAD_RENDER :: + * Call @FT_Render_Glyph after the glyph is loaded. By default, the + * glyph is rendered in @FT_RENDER_MODE_NORMAL mode. This can be + * overridden by @FT_LOAD_TARGET_XXX or @FT_LOAD_MONOCHROME. + * + * This flag is unset by @FT_LOAD_NO_SCALE. + * + * FT_LOAD_NO_BITMAP :: + * Ignore bitmap strikes when loading. Bitmap-only fonts ignore this + * flag. + * + * @FT_LOAD_NO_SCALE always sets this flag. + * + * FT_LOAD_VERTICAL_LAYOUT :: + * Load the glyph for vertical text layout. _Don't_ use it as it is + * problematic currently. + * + * FT_LOAD_FORCE_AUTOHINT :: + * Indicates that the auto-hinter is preferred over the font's native + * hinter. See also the note below. + * + * FT_LOAD_CROP_BITMAP :: + * Indicates that the font driver should crop the loaded bitmap glyph + * (i.e., remove all space around its black bits). Not all drivers + * implement this. + * + * FT_LOAD_PEDANTIC :: + * Indicates that the font driver should perform pedantic verifications + * during glyph loading. This is mostly used to detect broken glyphs + * in fonts. By default, FreeType tries to handle broken fonts also. + * + * In particular, errors from the TrueType bytecode engine are not + * passed to the application if this flag is not set; this might + * result in partially hinted or distorted glyphs in case a glyph's + * bytecode is buggy. + * + * FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH :: + * Ignored. Deprecated. + * + * FT_LOAD_NO_RECURSE :: + * This flag is only used internally. It merely indicates that the + * font driver should not load composite glyphs recursively. Instead, + * it should set the `num_subglyph' and `subglyphs' values of the + * glyph slot accordingly, and set `glyph->format' to + * @FT_GLYPH_FORMAT_COMPOSITE. + * + * The description of sub-glyphs is not available to client + * applications for now. + * + * This flag implies @FT_LOAD_NO_SCALE and @FT_LOAD_IGNORE_TRANSFORM. + * + * FT_LOAD_IGNORE_TRANSFORM :: + * Indicates that the transform matrix set by @FT_Set_Transform should + * be ignored. + * + * FT_LOAD_MONOCHROME :: + * This flag is used with @FT_LOAD_RENDER to indicate that you want to + * render an outline glyph to a 1-bit monochrome bitmap glyph, with + * 8~pixels packed into each byte of the bitmap data. + * + * Note that this has no effect on the hinting algorithm used. You + * should rather use @FT_LOAD_TARGET_MONO so that the + * monochrome-optimized hinting algorithm is used. + * + * FT_LOAD_LINEAR_DESIGN :: + * Indicates that the `linearHoriAdvance' and `linearVertAdvance' + * fields of @FT_GlyphSlotRec should be kept in font units. See + * @FT_GlyphSlotRec for details. + * + * FT_LOAD_NO_AUTOHINT :: + * Disable auto-hinter. See also the note below. + * + * @note: + * By default, hinting is enabled and the font's native hinter (see + * @FT_FACE_FLAG_HINTER) is preferred over the auto-hinter. You can + * disable hinting by setting @FT_LOAD_NO_HINTING or change the + * precedence by setting @FT_LOAD_FORCE_AUTOHINT. You can also set + * @FT_LOAD_NO_AUTOHINT in case you don't want the auto-hinter to be + * used at all. + * + * See the description of @FT_FACE_FLAG_TRICKY for a special exception + * (affecting only a handful of Asian fonts). + * + * Besides deciding which hinter to use, you can also decide which + * hinting algorithm to use. See @FT_LOAD_TARGET_XXX for details. + * + */ +#define FT_LOAD_DEFAULT 0x0 +#define FT_LOAD_NO_SCALE ( 1L << 0 ) +#define FT_LOAD_NO_HINTING ( 1L << 1 ) +#define FT_LOAD_RENDER ( 1L << 2 ) +#define FT_LOAD_NO_BITMAP ( 1L << 3 ) +#define FT_LOAD_VERTICAL_LAYOUT ( 1L << 4 ) +#define FT_LOAD_FORCE_AUTOHINT ( 1L << 5 ) +#define FT_LOAD_CROP_BITMAP ( 1L << 6 ) +#define FT_LOAD_PEDANTIC ( 1L << 7 ) +#define FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ( 1L << 9 ) +#define FT_LOAD_NO_RECURSE ( 1L << 10 ) +#define FT_LOAD_IGNORE_TRANSFORM ( 1L << 11 ) +#define FT_LOAD_MONOCHROME ( 1L << 12 ) +#define FT_LOAD_LINEAR_DESIGN ( 1L << 13 ) +#define FT_LOAD_NO_AUTOHINT ( 1L << 15 ) + + /* */ + + /* used internally only by certain font drivers! */ +#define FT_LOAD_ADVANCE_ONLY ( 1L << 8 ) +#define FT_LOAD_SBITS_ONLY ( 1L << 14 ) + + + /************************************************************************** + * + * @enum: + * FT_LOAD_TARGET_XXX + * + * @description: + * A list of values that are used to select a specific hinting algorithm + * to use by the hinter. You should OR one of these values to your + * `load_flags' when calling @FT_Load_Glyph. + * + * Note that font's native hinters may ignore the hinting algorithm you + * have specified (e.g., the TrueType bytecode interpreter). You can set + * @FT_LOAD_FORCE_AUTOHINT to ensure that the auto-hinter is used. + * + * Also note that @FT_LOAD_TARGET_LIGHT is an exception, in that it + * always implies @FT_LOAD_FORCE_AUTOHINT. + * + * @values: + * FT_LOAD_TARGET_NORMAL :: + * This corresponds to the default hinting algorithm, optimized for + * standard gray-level rendering. For monochrome output, use + * @FT_LOAD_TARGET_MONO instead. + * + * FT_LOAD_TARGET_LIGHT :: + * A lighter hinting algorithm for non-monochrome modes. Many + * generated glyphs are more fuzzy but better resemble its original + * shape. A bit like rendering on Mac OS~X. + * + * As a special exception, this target implies @FT_LOAD_FORCE_AUTOHINT. + * + * FT_LOAD_TARGET_MONO :: + * Strong hinting algorithm that should only be used for monochrome + * output. The result is probably unpleasant if the glyph is rendered + * in non-monochrome modes. + * + * FT_LOAD_TARGET_LCD :: + * A variant of @FT_LOAD_TARGET_NORMAL optimized for horizontally + * decimated LCD displays. + * + * FT_LOAD_TARGET_LCD_V :: + * A variant of @FT_LOAD_TARGET_NORMAL optimized for vertically + * decimated LCD displays. + * + * @note: + * You should use only _one_ of the FT_LOAD_TARGET_XXX values in your + * `load_flags'. They can't be ORed. + * + * If @FT_LOAD_RENDER is also set, the glyph is rendered in the + * corresponding mode (i.e., the mode which matches the used algorithm + * best) unless @FT_LOAD_MONOCHROME is set. + * + * You can use a hinting algorithm that doesn't correspond to the same + * rendering mode. As an example, it is possible to use the `light' + * hinting algorithm and have the results rendered in horizontal LCD + * pixel mode, with code like + * + * { + * FT_Load_Glyph( face, glyph_index, + * load_flags | FT_LOAD_TARGET_LIGHT ); + * + * FT_Render_Glyph( face->glyph, FT_RENDER_MODE_LCD ); + * } + * + */ +#define FT_LOAD_TARGET_( x ) ( (FT_Int32)( (x) & 15 ) << 16 ) + +#define FT_LOAD_TARGET_NORMAL FT_LOAD_TARGET_( FT_RENDER_MODE_NORMAL ) +#define FT_LOAD_TARGET_LIGHT FT_LOAD_TARGET_( FT_RENDER_MODE_LIGHT ) +#define FT_LOAD_TARGET_MONO FT_LOAD_TARGET_( FT_RENDER_MODE_MONO ) +#define FT_LOAD_TARGET_LCD FT_LOAD_TARGET_( FT_RENDER_MODE_LCD ) +#define FT_LOAD_TARGET_LCD_V FT_LOAD_TARGET_( FT_RENDER_MODE_LCD_V ) + + + /************************************************************************** + * + * @macro: + * FT_LOAD_TARGET_MODE + * + * @description: + * Return the @FT_Render_Mode corresponding to a given + * @FT_LOAD_TARGET_XXX value. + * + */ +#define FT_LOAD_TARGET_MODE( x ) ( (FT_Render_Mode)( ( (x) >> 16 ) & 15 ) ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Transform */ + /* */ + /* <Description> */ + /* A function used to set the transformation that is applied to glyph */ + /* images when they are loaded into a glyph slot through */ + /* @FT_Load_Glyph. */ + /* */ + /* <InOut> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Input> */ + /* matrix :: A pointer to the transformation's 2x2 matrix. Use~0 for */ + /* the identity matrix. */ + /* delta :: A pointer to the translation vector. Use~0 for the null */ + /* vector. */ + /* */ + /* <Note> */ + /* The transformation is only applied to scalable image formats after */ + /* the glyph has been loaded. It means that hinting is unaltered by */ + /* the transformation and is performed on the character size given in */ + /* the last call to @FT_Set_Char_Size or @FT_Set_Pixel_Sizes. */ + /* */ + /* Note that this also transforms the `face.glyph.advance' field, but */ + /* *not* the values in `face.glyph.metrics'. */ + /* */ + FT_EXPORT( void ) + FT_Set_Transform( FT_Face face, + FT_Matrix* matrix, + FT_Vector* delta ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Render_Mode */ + /* */ + /* <Description> */ + /* An enumeration type that lists the render modes supported by */ + /* FreeType~2. Each mode corresponds to a specific type of scanline */ + /* conversion performed on the outline. */ + /* */ + /* For bitmap fonts and embedded bitmaps the `bitmap->pixel_mode' */ + /* field in the @FT_GlyphSlotRec structure gives the format of the */ + /* returned bitmap. */ + /* */ + /* All modes except @FT_RENDER_MODE_MONO use 256 levels of opacity. */ + /* */ + /* <Values> */ + /* FT_RENDER_MODE_NORMAL :: */ + /* This is the default render mode; it corresponds to 8-bit */ + /* anti-aliased bitmaps. */ + /* */ + /* FT_RENDER_MODE_LIGHT :: */ + /* This is equivalent to @FT_RENDER_MODE_NORMAL. It is only */ + /* defined as a separate value because render modes are also used */ + /* indirectly to define hinting algorithm selectors. See */ + /* @FT_LOAD_TARGET_XXX for details. */ + /* */ + /* FT_RENDER_MODE_MONO :: */ + /* This mode corresponds to 1-bit bitmaps (with 2~levels of */ + /* opacity). */ + /* */ + /* FT_RENDER_MODE_LCD :: */ + /* This mode corresponds to horizontal RGB and BGR sub-pixel */ + /* displays like LCD screens. It produces 8-bit bitmaps that are */ + /* 3~times the width of the original glyph outline in pixels, and */ + /* which use the @FT_PIXEL_MODE_LCD mode. */ + /* */ + /* FT_RENDER_MODE_LCD_V :: */ + /* This mode corresponds to vertical RGB and BGR sub-pixel displays */ + /* (like PDA screens, rotated LCD displays, etc.). It produces */ + /* 8-bit bitmaps that are 3~times the height of the original */ + /* glyph outline in pixels and use the @FT_PIXEL_MODE_LCD_V mode. */ + /* */ + /* <Note> */ + /* The LCD-optimized glyph bitmaps produced by FT_Render_Glyph can be */ + /* filtered to reduce color-fringes by using @FT_Library_SetLcdFilter */ + /* (not active in the default builds). It is up to the caller to */ + /* either call @FT_Library_SetLcdFilter (if available) or do the */ + /* filtering itself. */ + /* */ + /* The selected render mode only affects vector glyphs of a font. */ + /* Embedded bitmaps often have a different pixel mode like */ + /* @FT_PIXEL_MODE_MONO. You can use @FT_Bitmap_Convert to transform */ + /* them into 8-bit pixmaps. */ + /* */ + typedef enum FT_Render_Mode_ + { + FT_RENDER_MODE_NORMAL = 0, + FT_RENDER_MODE_LIGHT, + FT_RENDER_MODE_MONO, + FT_RENDER_MODE_LCD, + FT_RENDER_MODE_LCD_V, + + FT_RENDER_MODE_MAX + + } FT_Render_Mode; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* ft_render_mode_xxx */ + /* */ + /* <Description> */ + /* These constants are deprecated. Use the corresponding */ + /* @FT_Render_Mode values instead. */ + /* */ + /* <Values> */ + /* ft_render_mode_normal :: see @FT_RENDER_MODE_NORMAL */ + /* ft_render_mode_mono :: see @FT_RENDER_MODE_MONO */ + /* */ +#define ft_render_mode_normal FT_RENDER_MODE_NORMAL +#define ft_render_mode_mono FT_RENDER_MODE_MONO + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Render_Glyph */ + /* */ + /* <Description> */ + /* Convert a given glyph image to a bitmap. It does so by inspecting */ + /* the glyph image format, finding the relevant renderer, and */ + /* invoking it. */ + /* */ + /* <InOut> */ + /* slot :: A handle to the glyph slot containing the image to */ + /* convert. */ + /* */ + /* <Input> */ + /* render_mode :: This is the render mode used to render the glyph */ + /* image into a bitmap. See @FT_Render_Mode for a */ + /* list of possible values. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Render_Glyph( FT_GlyphSlot slot, + FT_Render_Mode render_mode ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Kerning_Mode */ + /* */ + /* <Description> */ + /* An enumeration used to specify which kerning values to return in */ + /* @FT_Get_Kerning. */ + /* */ + /* <Values> */ + /* FT_KERNING_DEFAULT :: Return scaled and grid-fitted kerning */ + /* distances (value is~0). */ + /* */ + /* FT_KERNING_UNFITTED :: Return scaled but un-grid-fitted kerning */ + /* distances. */ + /* */ + /* FT_KERNING_UNSCALED :: Return the kerning vector in original font */ + /* units. */ + /* */ + typedef enum FT_Kerning_Mode_ + { + FT_KERNING_DEFAULT = 0, + FT_KERNING_UNFITTED, + FT_KERNING_UNSCALED + + } FT_Kerning_Mode; + + + /*************************************************************************/ + /* */ + /* <Const> */ + /* ft_kerning_default */ + /* */ + /* <Description> */ + /* This constant is deprecated. Please use @FT_KERNING_DEFAULT */ + /* instead. */ + /* */ +#define ft_kerning_default FT_KERNING_DEFAULT + + + /*************************************************************************/ + /* */ + /* <Const> */ + /* ft_kerning_unfitted */ + /* */ + /* <Description> */ + /* This constant is deprecated. Please use @FT_KERNING_UNFITTED */ + /* instead. */ + /* */ +#define ft_kerning_unfitted FT_KERNING_UNFITTED + + + /*************************************************************************/ + /* */ + /* <Const> */ + /* ft_kerning_unscaled */ + /* */ + /* <Description> */ + /* This constant is deprecated. Please use @FT_KERNING_UNSCALED */ + /* instead. */ + /* */ +#define ft_kerning_unscaled FT_KERNING_UNSCALED + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Kerning */ + /* */ + /* <Description> */ + /* Return the kerning vector between two glyphs of a same face. */ + /* */ + /* <Input> */ + /* face :: A handle to a source face object. */ + /* */ + /* left_glyph :: The index of the left glyph in the kern pair. */ + /* */ + /* right_glyph :: The index of the right glyph in the kern pair. */ + /* */ + /* kern_mode :: See @FT_Kerning_Mode for more information. */ + /* Determines the scale and dimension of the returned */ + /* kerning vector. */ + /* */ + /* <Output> */ + /* akerning :: The kerning vector. This is either in font units */ + /* or in pixels (26.6 format) for scalable formats, */ + /* and in pixels for fixed-sizes formats. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* Only horizontal layouts (left-to-right & right-to-left) are */ + /* supported by this method. Other layouts, or more sophisticated */ + /* kernings, are out of the scope of this API function -- they can be */ + /* implemented through format-specific interfaces. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Kerning( FT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_UInt kern_mode, + FT_Vector *akerning ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Track_Kerning */ + /* */ + /* <Description> */ + /* Return the track kerning for a given face object at a given size. */ + /* */ + /* <Input> */ + /* face :: A handle to a source face object. */ + /* */ + /* point_size :: The point size in 16.16 fractional points. */ + /* */ + /* degree :: The degree of tightness. Increasingly negative */ + /* values represent tighter track kerning, while */ + /* increasingly positive values represent looser track */ + /* kerning. Value zero means no track kerning. */ + /* */ + /* <Output> */ + /* akerning :: The kerning in 16.16 fractional points, to be */ + /* uniformly applied between all glyphs. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* Currently, only the Type~1 font driver supports track kerning, */ + /* using data from AFM files (if attached with @FT_Attach_File or */ + /* @FT_Attach_Stream). */ + /* */ + /* Only very few AFM files come with track kerning data; please refer */ + /* to the Adobe's AFM specification for more details. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Track_Kerning( FT_Face face, + FT_Fixed point_size, + FT_Int degree, + FT_Fixed* akerning ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Glyph_Name */ + /* */ + /* <Description> */ + /* Retrieve the ASCII name of a given glyph in a face. This only */ + /* works for those faces where @FT_HAS_GLYPH_NAMES(face) returns~1. */ + /* */ + /* <Input> */ + /* face :: A handle to a source face object. */ + /* */ + /* glyph_index :: The glyph index. */ + /* */ + /* buffer_max :: The maximal number of bytes available in the */ + /* buffer. */ + /* */ + /* <Output> */ + /* buffer :: A pointer to a target buffer where the name is */ + /* copied to. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* An error is returned if the face doesn't provide glyph names or if */ + /* the glyph index is invalid. In all cases of failure, the first */ + /* byte of `buffer' is set to~0 to indicate an empty name. */ + /* */ + /* The glyph name is truncated to fit within the buffer if it is too */ + /* long. The returned string is always zero-terminated. */ + /* */ + /* Be aware that FreeType reorders glyph indices internally so that */ + /* glyph index~0 always corresponds to the `missing glyph' (called */ + /* `.notdef'). */ + /* */ + /* This function is not compiled within the library if the config */ + /* macro `FT_CONFIG_OPTION_NO_GLYPH_NAMES' is defined in */ + /* `include/freetype/config/ftoptions.h'. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Glyph_Name( FT_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Postscript_Name */ + /* */ + /* <Description> */ + /* Retrieve the ASCII PostScript name of a given face, if available. */ + /* This only works with PostScript and TrueType fonts. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Return> */ + /* A pointer to the face's PostScript name. NULL if unavailable. */ + /* */ + /* <Note> */ + /* The returned pointer is owned by the face and is destroyed with */ + /* it. */ + /* */ + FT_EXPORT( const char* ) + FT_Get_Postscript_Name( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Select_Charmap */ + /* */ + /* <Description> */ + /* Select a given charmap by its encoding tag (as listed in */ + /* `freetype.h'). */ + /* */ + /* <InOut> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Input> */ + /* encoding :: A handle to the selected encoding. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* This function returns an error if no charmap in the face */ + /* corresponds to the encoding queried here. */ + /* */ + /* Because many fonts contain more than a single cmap for Unicode */ + /* encoding, this function has some special code to select the one */ + /* which covers Unicode best (`best' in the sense that a UCS-4 cmap */ + /* is preferred to a UCS-2 cmap). It is thus preferable to */ + /* @FT_Set_Charmap in this case. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Select_Charmap( FT_Face face, + FT_Encoding encoding ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Charmap */ + /* */ + /* <Description> */ + /* Select a given charmap for character code to glyph index mapping. */ + /* */ + /* <InOut> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Input> */ + /* charmap :: A handle to the selected charmap. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* This function returns an error if the charmap is not part of */ + /* the face (i.e., if it is not listed in the `face->charmaps' */ + /* table). */ + /* */ + /* It also fails if a type~14 charmap is selected. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_Charmap( FT_Face face, + FT_CharMap charmap ); + + + /************************************************************************* + * + * @function: + * FT_Get_Charmap_Index + * + * @description: + * Retrieve index of a given charmap. + * + * @input: + * charmap :: + * A handle to a charmap. + * + * @return: + * The index into the array of character maps within the face to which + * `charmap' belongs. If an error occurs, -1 is returned. + * + */ + FT_EXPORT( FT_Int ) + FT_Get_Charmap_Index( FT_CharMap charmap ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Char_Index */ + /* */ + /* <Description> */ + /* Return the glyph index of a given character code. This function */ + /* uses a charmap object to do the mapping. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* charcode :: The character code. */ + /* */ + /* <Return> */ + /* The glyph index. 0~means `undefined character code'. */ + /* */ + /* <Note> */ + /* If you use FreeType to manipulate the contents of font files */ + /* directly, be aware that the glyph index returned by this function */ + /* doesn't always correspond to the internal indices used within */ + /* the file. This is done to ensure that value~0 always corresponds */ + /* to the `missing glyph'. */ + /* */ + FT_EXPORT( FT_UInt ) + FT_Get_Char_Index( FT_Face face, + FT_ULong charcode ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_First_Char */ + /* */ + /* <Description> */ + /* This function is used to return the first character code in the */ + /* current charmap of a given face. It also returns the */ + /* corresponding glyph index. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Output> */ + /* agindex :: Glyph index of first character code. 0~if charmap is */ + /* empty. */ + /* */ + /* <Return> */ + /* The charmap's first character code. */ + /* */ + /* <Note> */ + /* You should use this function with @FT_Get_Next_Char to be able to */ + /* parse all character codes available in a given charmap. The code */ + /* should look like this: */ + /* */ + /* { */ + /* FT_ULong charcode; */ + /* FT_UInt gindex; */ + /* */ + /* */ + /* charcode = FT_Get_First_Char( face, &gindex ); */ + /* while ( gindex != 0 ) */ + /* { */ + /* ... do something with (charcode,gindex) pair ... */ + /* */ + /* charcode = FT_Get_Next_Char( face, charcode, &gindex ); */ + /* } */ + /* } */ + /* */ + /* Note that `*agindex' is set to~0 if the charmap is empty. The */ + /* result itself can be~0 in two cases: if the charmap is empty or */ + /* if the value~0 is the first valid character code. */ + /* */ + FT_EXPORT( FT_ULong ) + FT_Get_First_Char( FT_Face face, + FT_UInt *agindex ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Next_Char */ + /* */ + /* <Description> */ + /* This function is used to return the next character code in the */ + /* current charmap of a given face following the value `char_code', */ + /* as well as the corresponding glyph index. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* char_code :: The starting character code. */ + /* */ + /* <Output> */ + /* agindex :: Glyph index of next character code. 0~if charmap */ + /* is empty. */ + /* */ + /* <Return> */ + /* The charmap's next character code. */ + /* */ + /* <Note> */ + /* You should use this function with @FT_Get_First_Char to walk */ + /* over all character codes available in a given charmap. See the */ + /* note for this function for a simple code example. */ + /* */ + /* Note that `*agindex' is set to~0 when there are no more codes in */ + /* the charmap. */ + /* */ + FT_EXPORT( FT_ULong ) + FT_Get_Next_Char( FT_Face face, + FT_ULong char_code, + FT_UInt *agindex ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Name_Index */ + /* */ + /* <Description> */ + /* Return the glyph index of a given glyph name. This function uses */ + /* driver specific objects to do the translation. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* glyph_name :: The glyph name. */ + /* */ + /* <Return> */ + /* The glyph index. 0~means `undefined character code'. */ + /* */ + FT_EXPORT( FT_UInt ) + FT_Get_Name_Index( FT_Face face, + FT_String* glyph_name ); + + + /************************************************************************* + * + * @macro: + * FT_SUBGLYPH_FLAG_XXX + * + * @description: + * A list of constants used to describe subglyphs. Please refer to the + * TrueType specification for the meaning of the various flags. + * + * @values: + * FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS :: + * FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES :: + * FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID :: + * FT_SUBGLYPH_FLAG_SCALE :: + * FT_SUBGLYPH_FLAG_XY_SCALE :: + * FT_SUBGLYPH_FLAG_2X2 :: + * FT_SUBGLYPH_FLAG_USE_MY_METRICS :: + * + */ +#define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1 +#define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2 +#define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4 +#define FT_SUBGLYPH_FLAG_SCALE 8 +#define FT_SUBGLYPH_FLAG_XY_SCALE 0x40 +#define FT_SUBGLYPH_FLAG_2X2 0x80 +#define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200 + + + /************************************************************************* + * + * @func: + * FT_Get_SubGlyph_Info + * + * @description: + * Retrieve a description of a given subglyph. Only use it if + * `glyph->format' is @FT_GLYPH_FORMAT_COMPOSITE; an error is + * returned otherwise. + * + * @input: + * glyph :: + * The source glyph slot. + * + * sub_index :: + * The index of the subglyph. Must be less than + * `glyph->num_subglyphs'. + * + * @output: + * p_index :: + * The glyph index of the subglyph. + * + * p_flags :: + * The subglyph flags, see @FT_SUBGLYPH_FLAG_XXX. + * + * p_arg1 :: + * The subglyph's first argument (if any). + * + * p_arg2 :: + * The subglyph's second argument (if any). + * + * p_transform :: + * The subglyph transformation (if any). + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The values of `*p_arg1', `*p_arg2', and `*p_transform' must be + * interpreted depending on the flags returned in `*p_flags'. See the + * TrueType specification for details. + * + */ + FT_EXPORT( FT_Error ) + FT_Get_SubGlyph_Info( FT_GlyphSlot glyph, + FT_UInt sub_index, + FT_Int *p_index, + FT_UInt *p_flags, + FT_Int *p_arg1, + FT_Int *p_arg2, + FT_Matrix *p_transform ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_FSTYPE_XXX */ + /* */ + /* <Description> */ + /* A list of bit flags used in the `fsType' field of the OS/2 table */ + /* in a TrueType or OpenType font and the `FSType' entry in a */ + /* PostScript font. These bit flags are returned by */ + /* @FT_Get_FSType_Flags; they inform client applications of embedding */ + /* and subsetting restrictions associated with a font. */ + /* */ + /* See http://www.adobe.com/devnet/acrobat/pdfs/FontPolicies.pdf for */ + /* more details. */ + /* */ + /* <Values> */ + /* FT_FSTYPE_INSTALLABLE_EMBEDDING :: */ + /* Fonts with no fsType bit set may be embedded and permanently */ + /* installed on the remote system by an application. */ + /* */ + /* FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING :: */ + /* Fonts that have only this bit set must not be modified, embedded */ + /* or exchanged in any manner without first obtaining permission of */ + /* the font software copyright owner. */ + /* */ + /* FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING :: */ + /* If this bit is set, the font may be embedded and temporarily */ + /* loaded on the remote system. Documents containing Preview & */ + /* Print fonts must be opened `read-only'; no edits can be applied */ + /* to the document. */ + /* */ + /* FT_FSTYPE_EDITABLE_EMBEDDING :: */ + /* If this bit is set, the font may be embedded but must only be */ + /* installed temporarily on other systems. In contrast to Preview */ + /* & Print fonts, documents containing editable fonts may be opened */ + /* for reading, editing is permitted, and changes may be saved. */ + /* */ + /* FT_FSTYPE_NO_SUBSETTING :: */ + /* If this bit is set, the font may not be subsetted prior to */ + /* embedding. */ + /* */ + /* FT_FSTYPE_BITMAP_EMBEDDING_ONLY :: */ + /* If this bit is set, only bitmaps contained in the font may be */ + /* embedded; no outline data may be embedded. If there are no */ + /* bitmaps available in the font, then the font is unembeddable. */ + /* */ + /* <Note> */ + /* While the fsType flags can indicate that a font may be embedded, a */ + /* license with the font vendor may be separately required to use the */ + /* font in this way. */ + /* */ +#define FT_FSTYPE_INSTALLABLE_EMBEDDING 0x0000 +#define FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING 0x0002 +#define FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING 0x0004 +#define FT_FSTYPE_EDITABLE_EMBEDDING 0x0008 +#define FT_FSTYPE_NO_SUBSETTING 0x0100 +#define FT_FSTYPE_BITMAP_EMBEDDING_ONLY 0x0200 + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_FSType_Flags */ + /* */ + /* <Description> */ + /* Return the fsType flags for a font. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* <Return> */ + /* The fsType flags, @FT_FSTYPE_XXX. */ + /* */ + /* <Note> */ + /* Use this function rather than directly reading the `fs_type' field */ + /* in the @PS_FontInfoRec structure which is only guaranteed to */ + /* return the correct results for Type~1 fonts. */ + /* */ + /* <Since> */ + /* 2.3.8 */ + /* */ + FT_EXPORT( FT_UShort ) + FT_Get_FSType_Flags( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* glyph_variants */ + /* */ + /* <Title> */ + /* Glyph Variants */ + /* */ + /* <Abstract> */ + /* The FreeType~2 interface to Unicode Ideographic Variation */ + /* Sequences (IVS), using the SFNT cmap format~14. */ + /* */ + /* <Description> */ + /* Many CJK characters have variant forms. They are a sort of grey */ + /* area somewhere between being totally irrelevant and semantically */ + /* distinct; for this reason, the Unicode consortium decided to */ + /* introduce Ideographic Variation Sequences (IVS), consisting of a */ + /* Unicode base character and one of 240 variant selectors */ + /* (U+E0100-U+E01EF), instead of further extending the already huge */ + /* code range for CJK characters. */ + /* */ + /* An IVS is registered and unique; for further details please refer */ + /* to Unicode Technical Report #37, the Ideographic Variation */ + /* Database. To date (October 2007), the character with the most */ + /* variants is U+908A, having 8~such IVS. */ + /* */ + /* Adobe and MS decided to support IVS with a new cmap subtable */ + /* (format~14). It is an odd subtable because it is not a mapping of */ + /* input code points to glyphs, but contains lists of all variants */ + /* supported by the font. */ + /* */ + /* A variant may be either `default' or `non-default'. A default */ + /* variant is the one you will get for that code point if you look it */ + /* up in the standard Unicode cmap. A non-default variant is a */ + /* different glyph. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_GetCharVariantIndex */ + /* */ + /* <Description> */ + /* Return the glyph index of a given character code as modified by */ + /* the variation selector. */ + /* */ + /* <Input> */ + /* face :: */ + /* A handle to the source face object. */ + /* */ + /* charcode :: */ + /* The character code point in Unicode. */ + /* */ + /* variantSelector :: */ + /* The Unicode code point of the variation selector. */ + /* */ + /* <Return> */ + /* The glyph index. 0~means either `undefined character code', or */ + /* `undefined selector code', or `no variation selector cmap */ + /* subtable', or `current CharMap is not Unicode'. */ + /* */ + /* <Note> */ + /* If you use FreeType to manipulate the contents of font files */ + /* directly, be aware that the glyph index returned by this function */ + /* doesn't always correspond to the internal indices used within */ + /* the file. This is done to ensure that value~0 always corresponds */ + /* to the `missing glyph'. */ + /* */ + /* This function is only meaningful if */ + /* a) the font has a variation selector cmap sub table, */ + /* and */ + /* b) the current charmap has a Unicode encoding. */ + /* */ + /* <Since> */ + /* 2.3.6 */ + /* */ + FT_EXPORT( FT_UInt ) + FT_Face_GetCharVariantIndex( FT_Face face, + FT_ULong charcode, + FT_ULong variantSelector ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_GetCharVariantIsDefault */ + /* */ + /* <Description> */ + /* Check whether this variant of this Unicode character is the one to */ + /* be found in the `cmap'. */ + /* */ + /* <Input> */ + /* face :: */ + /* A handle to the source face object. */ + /* */ + /* charcode :: */ + /* The character codepoint in Unicode. */ + /* */ + /* variantSelector :: */ + /* The Unicode codepoint of the variation selector. */ + /* */ + /* <Return> */ + /* 1~if found in the standard (Unicode) cmap, 0~if found in the */ + /* variation selector cmap, or -1 if it is not a variant. */ + /* */ + /* <Note> */ + /* This function is only meaningful if the font has a variation */ + /* selector cmap subtable. */ + /* */ + /* <Since> */ + /* 2.3.6 */ + /* */ + FT_EXPORT( FT_Int ) + FT_Face_GetCharVariantIsDefault( FT_Face face, + FT_ULong charcode, + FT_ULong variantSelector ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_GetVariantSelectors */ + /* */ + /* <Description> */ + /* Return a zero-terminated list of Unicode variant selectors found */ + /* in the font. */ + /* */ + /* <Input> */ + /* face :: */ + /* A handle to the source face object. */ + /* */ + /* <Return> */ + /* A pointer to an array of selector code points, or NULL if there is */ + /* no valid variant selector cmap subtable. */ + /* */ + /* <Note> */ + /* The last item in the array is~0; the array is owned by the */ + /* @FT_Face object but can be overwritten or released on the next */ + /* call to a FreeType function. */ + /* */ + /* <Since> */ + /* 2.3.6 */ + /* */ + FT_EXPORT( FT_UInt32* ) + FT_Face_GetVariantSelectors( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_GetVariantsOfChar */ + /* */ + /* <Description> */ + /* Return a zero-terminated list of Unicode variant selectors found */ + /* for the specified character code. */ + /* */ + /* <Input> */ + /* face :: */ + /* A handle to the source face object. */ + /* */ + /* charcode :: */ + /* The character codepoint in Unicode. */ + /* */ + /* <Return> */ + /* A pointer to an array of variant selector code points which are */ + /* active for the given character, or NULL if the corresponding list */ + /* is empty. */ + /* */ + /* <Note> */ + /* The last item in the array is~0; the array is owned by the */ + /* @FT_Face object but can be overwritten or released on the next */ + /* call to a FreeType function. */ + /* */ + /* <Since> */ + /* 2.3.6 */ + /* */ + FT_EXPORT( FT_UInt32* ) + FT_Face_GetVariantsOfChar( FT_Face face, + FT_ULong charcode ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_GetCharsOfVariant */ + /* */ + /* <Description> */ + /* Return a zero-terminated list of Unicode character codes found for */ + /* the specified variant selector. */ + /* */ + /* <Input> */ + /* face :: */ + /* A handle to the source face object. */ + /* */ + /* variantSelector :: */ + /* The variant selector code point in Unicode. */ + /* */ + /* <Return> */ + /* A list of all the code points which are specified by this selector */ + /* (both default and non-default codes are returned) or NULL if there */ + /* is no valid cmap or the variant selector is invalid. */ + /* */ + /* <Note> */ + /* The last item in the array is~0; the array is owned by the */ + /* @FT_Face object but can be overwritten or released on the next */ + /* call to a FreeType function. */ + /* */ + /* <Since> */ + /* 2.3.6 */ + /* */ + FT_EXPORT( FT_UInt32* ) + FT_Face_GetCharsOfVariant( FT_Face face, + FT_ULong variantSelector ); + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* computations */ + /* */ + /* <Title> */ + /* Computations */ + /* */ + /* <Abstract> */ + /* Crunching fixed numbers and vectors. */ + /* */ + /* <Description> */ + /* This section contains various functions used to perform */ + /* computations on 16.16 fixed-float numbers or 2d vectors. */ + /* */ + /* <Order> */ + /* FT_MulDiv */ + /* FT_MulFix */ + /* FT_DivFix */ + /* FT_RoundFix */ + /* FT_CeilFix */ + /* FT_FloorFix */ + /* FT_Vector_Transform */ + /* FT_Matrix_Multiply */ + /* FT_Matrix_Invert */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_MulDiv */ + /* */ + /* <Description> */ + /* A very simple function used to perform the computation `(a*b)/c' */ + /* with maximal accuracy (it uses a 64-bit intermediate integer */ + /* whenever necessary). */ + /* */ + /* This function isn't necessarily as fast as some processor specific */ + /* operations, but is at least completely portable. */ + /* */ + /* <Input> */ + /* a :: The first multiplier. */ + /* b :: The second multiplier. */ + /* c :: The divisor. */ + /* */ + /* <Return> */ + /* The result of `(a*b)/c'. This function never traps when trying to */ + /* divide by zero; it simply returns `MaxInt' or `MinInt' depending */ + /* on the signs of `a' and `b'. */ + /* */ + FT_EXPORT( FT_Long ) + FT_MulDiv( FT_Long a, + FT_Long b, + FT_Long c ); + + + /* */ + + /* The following #if 0 ... #endif is for the documentation formatter, */ + /* hiding the internal `FT_MULFIX_INLINED' macro. */ + +#if 0 + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_MulFix */ + /* */ + /* <Description> */ + /* A very simple function used to perform the computation */ + /* `(a*b)/0x10000' with maximal accuracy. Most of the time this is */ + /* used to multiply a given value by a 16.16 fixed float factor. */ + /* */ + /* <Input> */ + /* a :: The first multiplier. */ + /* b :: The second multiplier. Use a 16.16 factor here whenever */ + /* possible (see note below). */ + /* */ + /* <Return> */ + /* The result of `(a*b)/0x10000'. */ + /* */ + /* <Note> */ + /* This function has been optimized for the case where the absolute */ + /* value of `a' is less than 2048, and `b' is a 16.16 scaling factor. */ + /* As this happens mainly when scaling from notional units to */ + /* fractional pixels in FreeType, it resulted in noticeable speed */ + /* improvements between versions 2.x and 1.x. */ + /* */ + /* As a conclusion, always try to place a 16.16 factor as the */ + /* _second_ argument of this function; this can make a great */ + /* difference. */ + /* */ + FT_EXPORT( FT_Long ) + FT_MulFix( FT_Long a, + FT_Long b ); + + /* */ +#endif + +#ifdef FT_MULFIX_INLINED +#define FT_MulFix( a, b ) FT_MULFIX_INLINED( a, b ) +#else + FT_EXPORT( FT_Long ) + FT_MulFix( FT_Long a, + FT_Long b ); +#endif + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_DivFix */ + /* */ + /* <Description> */ + /* A very simple function used to perform the computation */ + /* `(a*0x10000)/b' with maximal accuracy. Most of the time, this is */ + /* used to divide a given value by a 16.16 fixed float factor. */ + /* */ + /* <Input> */ + /* a :: The first multiplier. */ + /* b :: The second multiplier. Use a 16.16 factor here whenever */ + /* possible (see note below). */ + /* */ + /* <Return> */ + /* The result of `(a*0x10000)/b'. */ + /* */ + /* <Note> */ + /* The optimization for FT_DivFix() is simple: If (a~<<~16) fits in */ + /* 32~bits, then the division is computed directly. Otherwise, we */ + /* use a specialized version of @FT_MulDiv. */ + /* */ + FT_EXPORT( FT_Long ) + FT_DivFix( FT_Long a, + FT_Long b ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_RoundFix */ + /* */ + /* <Description> */ + /* A very simple function used to round a 16.16 fixed number. */ + /* */ + /* <Input> */ + /* a :: The number to be rounded. */ + /* */ + /* <Return> */ + /* The result of `(a + 0x8000) & -0x10000'. */ + /* */ + FT_EXPORT( FT_Fixed ) + FT_RoundFix( FT_Fixed a ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_CeilFix */ + /* */ + /* <Description> */ + /* A very simple function used to compute the ceiling function of a */ + /* 16.16 fixed number. */ + /* */ + /* <Input> */ + /* a :: The number for which the ceiling function is to be computed. */ + /* */ + /* <Return> */ + /* The result of `(a + 0x10000 - 1) & -0x10000'. */ + /* */ + FT_EXPORT( FT_Fixed ) + FT_CeilFix( FT_Fixed a ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_FloorFix */ + /* */ + /* <Description> */ + /* A very simple function used to compute the floor function of a */ + /* 16.16 fixed number. */ + /* */ + /* <Input> */ + /* a :: The number for which the floor function is to be computed. */ + /* */ + /* <Return> */ + /* The result of `a & -0x10000'. */ + /* */ + FT_EXPORT( FT_Fixed ) + FT_FloorFix( FT_Fixed a ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Vector_Transform */ + /* */ + /* <Description> */ + /* Transform a single vector through a 2x2 matrix. */ + /* */ + /* <InOut> */ + /* vector :: The target vector to transform. */ + /* */ + /* <Input> */ + /* matrix :: A pointer to the source 2x2 matrix. */ + /* */ + /* <Note> */ + /* The result is undefined if either `vector' or `matrix' is invalid. */ + /* */ + FT_EXPORT( void ) + FT_Vector_Transform( FT_Vector* vec, + const FT_Matrix* matrix ); + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* version */ + /* */ + /* <Title> */ + /* FreeType Version */ + /* */ + /* <Abstract> */ + /* Functions and macros related to FreeType versions. */ + /* */ + /* <Description> */ + /* Note that those functions and macros are of limited use because */ + /* even a new release of FreeType with only documentation changes */ + /* increases the version number. */ + /* */ + /*************************************************************************/ + + + /************************************************************************* + * + * @enum: + * FREETYPE_XXX + * + * @description: + * These three macros identify the FreeType source code version. + * Use @FT_Library_Version to access them at runtime. + * + * @values: + * FREETYPE_MAJOR :: The major version number. + * FREETYPE_MINOR :: The minor version number. + * FREETYPE_PATCH :: The patch level. + * + * @note: + * The version number of FreeType if built as a dynamic link library + * with the `libtool' package is _not_ controlled by these three + * macros. + * + */ +#define FREETYPE_MAJOR 2 +#define FREETYPE_MINOR 4 +#define FREETYPE_PATCH 9 + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Library_Version */ + /* */ + /* <Description> */ + /* Return the version of the FreeType library being used. This is */ + /* useful when dynamically linking to the library, since one cannot */ + /* use the macros @FREETYPE_MAJOR, @FREETYPE_MINOR, and */ + /* @FREETYPE_PATCH. */ + /* */ + /* <Input> */ + /* library :: A source library handle. */ + /* */ + /* <Output> */ + /* amajor :: The major version number. */ + /* */ + /* aminor :: The minor version number. */ + /* */ + /* apatch :: The patch version number. */ + /* */ + /* <Note> */ + /* The reason why this function takes a `library' argument is because */ + /* certain programs implement library initialization in a custom way */ + /* that doesn't use @FT_Init_FreeType. */ + /* */ + /* In such cases, the library version might not be available before */ + /* the library object has been created. */ + /* */ + FT_EXPORT( void ) + FT_Library_Version( FT_Library library, + FT_Int *amajor, + FT_Int *aminor, + FT_Int *apatch ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_CheckTrueTypePatents */ + /* */ + /* <Description> */ + /* Parse all bytecode instructions of a TrueType font file to check */ + /* whether any of the patented opcodes are used. This is only useful */ + /* if you want to be able to use the unpatented hinter with */ + /* fonts that do *not* use these opcodes. */ + /* */ + /* Note that this function parses *all* glyph instructions in the */ + /* font file, which may be slow. */ + /* */ + /* <Input> */ + /* face :: A face handle. */ + /* */ + /* <Return> */ + /* 1~if this is a TrueType font that uses one of the patented */ + /* opcodes, 0~otherwise. */ + /* */ + /* <Note> */ + /* Since May 2010, TrueType hinting is no longer patented. */ + /* */ + /* <Since> */ + /* 2.3.5 */ + /* */ + FT_EXPORT( FT_Bool ) + FT_Face_CheckTrueTypePatents( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Face_SetUnpatentedHinting */ + /* */ + /* <Description> */ + /* Enable or disable the unpatented hinter for a given face. */ + /* Only enable it if you have determined that the face doesn't */ + /* use any patented opcodes (see @FT_Face_CheckTrueTypePatents). */ + /* */ + /* <Input> */ + /* face :: A face handle. */ + /* */ + /* value :: New boolean setting. */ + /* */ + /* <Return> */ + /* The old setting value. This will always be false if this is not */ + /* an SFNT font, or if the unpatented hinter is not compiled in this */ + /* instance of the library. */ + /* */ + /* <Note> */ + /* Since May 2010, TrueType hinting is no longer patented. */ + /* */ + /* <Since> */ + /* 2.3.5 */ + /* */ + FT_EXPORT( FT_Bool ) + FT_Face_SetUnpatentedHinting( FT_Face face, + FT_Bool value ); + + /* */ + + +FT_END_HEADER + +#endif /* __FREETYPE_H__ */ + + +/* END */ diff --git a/include/freetype/ftadvanc.h b/include/freetype/ftadvanc.h new file mode 100644 index 0000000..b2451be --- /dev/null +++ b/include/freetype/ftadvanc.h @@ -0,0 +1,179 @@ +/***************************************************************************/ +/* */ +/* ftadvanc.h */ +/* */ +/* Quick computation of advance widths (specification only). */ +/* */ +/* Copyright 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTADVANC_H__ +#define __FTADVANC_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /************************************************************************** + * + * @section: + * quick_advance + * + * @title: + * Quick retrieval of advance values + * + * @abstract: + * Retrieve horizontal and vertical advance values without processing + * glyph outlines, if possible. + * + * @description: + * This section contains functions to quickly extract advance values + * without handling glyph outlines, if possible. + */ + + + /*************************************************************************/ + /* */ + /* <Const> */ + /* FT_ADVANCE_FLAG_FAST_ONLY */ + /* */ + /* <Description> */ + /* A bit-flag to be OR-ed with the `flags' parameter of the */ + /* @FT_Get_Advance and @FT_Get_Advances functions. */ + /* */ + /* If set, it indicates that you want these functions to fail if the */ + /* corresponding hinting mode or font driver doesn't allow for very */ + /* quick advance computation. */ + /* */ + /* Typically, glyphs which are either unscaled, unhinted, bitmapped, */ + /* or light-hinted can have their advance width computed very */ + /* quickly. */ + /* */ + /* Normal and bytecode hinted modes, which require loading, scaling, */ + /* and hinting of the glyph outline, are extremely slow by */ + /* comparison. */ + /* */ +#define FT_ADVANCE_FLAG_FAST_ONLY 0x20000000UL + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Advance */ + /* */ + /* <Description> */ + /* Retrieve the advance value of a given glyph outline in an */ + /* @FT_Face. By default, the unhinted advance is returned in font */ + /* units. */ + /* */ + /* <Input> */ + /* face :: The source @FT_Face handle. */ + /* */ + /* gindex :: The glyph index. */ + /* */ + /* load_flags :: A set of bit flags similar to those used when */ + /* calling @FT_Load_Glyph, used to determine what kind */ + /* of advances you need. */ + /* <Output> */ + /* padvance :: The advance value, in either font units or 16.16 */ + /* format. */ + /* */ + /* If @FT_LOAD_VERTICAL_LAYOUT is set, this is the */ + /* vertical advance corresponding to a vertical layout. */ + /* Otherwise, it is the horizontal advance in a */ + /* horizontal layout. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and */ + /* if the corresponding font backend doesn't have a quick way to */ + /* retrieve the advances. */ + /* */ + /* A scaled advance is returned in 16.16 format but isn't transformed */ + /* by the affine transformation specified by @FT_Set_Transform. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Advance( FT_Face face, + FT_UInt gindex, + FT_Int32 load_flags, + FT_Fixed *padvance ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Advances */ + /* */ + /* <Description> */ + /* Retrieve the advance values of several glyph outlines in an */ + /* @FT_Face. By default, the unhinted advances are returned in font */ + /* units. */ + /* */ + /* <Input> */ + /* face :: The source @FT_Face handle. */ + /* */ + /* start :: The first glyph index. */ + /* */ + /* count :: The number of advance values you want to retrieve. */ + /* */ + /* load_flags :: A set of bit flags similar to those used when */ + /* calling @FT_Load_Glyph. */ + /* */ + /* <Output> */ + /* padvance :: The advances, in either font units or 16.16 format. */ + /* This array must contain at least `count' elements. */ + /* */ + /* If @FT_LOAD_VERTICAL_LAYOUT is set, these are the */ + /* vertical advances corresponding to a vertical layout. */ + /* Otherwise, they are the horizontal advances in a */ + /* horizontal layout. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and */ + /* if the corresponding font backend doesn't have a quick way to */ + /* retrieve the advances. */ + /* */ + /* Scaled advances are returned in 16.16 format but aren't */ + /* transformed by the affine transformation specified by */ + /* @FT_Set_Transform. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Advances( FT_Face face, + FT_UInt start, + FT_UInt count, + FT_Int32 load_flags, + FT_Fixed *padvances ); + +/* */ + + +FT_END_HEADER + +#endif /* __FTADVANC_H__ */ + + +/* END */ diff --git a/include/freetype/ftbbox.h b/include/freetype/ftbbox.h new file mode 100644 index 0000000..9766919 --- /dev/null +++ b/include/freetype/ftbbox.h @@ -0,0 +1,102 @@ +/***************************************************************************/ +/* */ +/* ftbbox.h */ +/* */ +/* FreeType exact bbox computation (specification). */ +/* */ +/* Copyright 1996-2001, 2003, 2007, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This component has a _single_ role: to compute exact outline bounding */ + /* boxes. */ + /* */ + /* It is separated from the rest of the engine for various technical */ + /* reasons. It may well be integrated in `ftoutln' later. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTBBOX_H__ +#define __FTBBOX_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* outline_processing */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Get_BBox */ + /* */ + /* <Description> */ + /* Compute the exact bounding box of an outline. This is slower */ + /* than computing the control box. However, it uses an advanced */ + /* algorithm which returns _very_ quickly when the two boxes */ + /* coincide. Otherwise, the outline Bézier arcs are traversed to */ + /* extract their extrema. */ + /* */ + /* <Input> */ + /* outline :: A pointer to the source outline. */ + /* */ + /* <Output> */ + /* abbox :: The outline's exact bounding box. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* If the font is tricky and the glyph has been loaded with */ + /* @FT_LOAD_NO_SCALE, the resulting BBox is meaningless. To get */ + /* reasonable values for the BBox it is necessary to load the glyph */ + /* at a large ppem value (so that the hinting instructions can */ + /* properly shift and scale the subglyphs), then extracting the BBox */ + /* which can be eventually converted back to font units. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Get_BBox( FT_Outline* outline, + FT_BBox *abbox ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTBBOX_H__ */ + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/include/freetype/ftbdf.h b/include/freetype/ftbdf.h new file mode 100644 index 0000000..4f8baf8 --- /dev/null +++ b/include/freetype/ftbdf.h @@ -0,0 +1,209 @@ +/***************************************************************************/ +/* */ +/* ftbdf.h */ +/* */ +/* FreeType API for accessing BDF-specific strings (specification). */ +/* */ +/* Copyright 2002, 2003, 2004, 2006, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTBDF_H__ +#define __FTBDF_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* bdf_fonts */ + /* */ + /* <Title> */ + /* BDF and PCF Files */ + /* */ + /* <Abstract> */ + /* BDF and PCF specific API. */ + /* */ + /* <Description> */ + /* This section contains the declaration of functions specific to BDF */ + /* and PCF fonts. */ + /* */ + /*************************************************************************/ + + + /********************************************************************** + * + * @enum: + * FT_PropertyType + * + * @description: + * A list of BDF property types. + * + * @values: + * BDF_PROPERTY_TYPE_NONE :: + * Value~0 is used to indicate a missing property. + * + * BDF_PROPERTY_TYPE_ATOM :: + * Property is a string atom. + * + * BDF_PROPERTY_TYPE_INTEGER :: + * Property is a 32-bit signed integer. + * + * BDF_PROPERTY_TYPE_CARDINAL :: + * Property is a 32-bit unsigned integer. + */ + typedef enum BDF_PropertyType_ + { + BDF_PROPERTY_TYPE_NONE = 0, + BDF_PROPERTY_TYPE_ATOM = 1, + BDF_PROPERTY_TYPE_INTEGER = 2, + BDF_PROPERTY_TYPE_CARDINAL = 3 + + } BDF_PropertyType; + + + /********************************************************************** + * + * @type: + * BDF_Property + * + * @description: + * A handle to a @BDF_PropertyRec structure to model a given + * BDF/PCF property. + */ + typedef struct BDF_PropertyRec_* BDF_Property; + + + /********************************************************************** + * + * @struct: + * BDF_PropertyRec + * + * @description: + * This structure models a given BDF/PCF property. + * + * @fields: + * type :: + * The property type. + * + * u.atom :: + * The atom string, if type is @BDF_PROPERTY_TYPE_ATOM. + * + * u.integer :: + * A signed integer, if type is @BDF_PROPERTY_TYPE_INTEGER. + * + * u.cardinal :: + * An unsigned integer, if type is @BDF_PROPERTY_TYPE_CARDINAL. + */ + typedef struct BDF_PropertyRec_ + { + BDF_PropertyType type; + union { + const char* atom; + FT_Int32 integer; + FT_UInt32 cardinal; + + } u; + + } BDF_PropertyRec; + + + /********************************************************************** + * + * @function: + * FT_Get_BDF_Charset_ID + * + * @description: + * Retrieve a BDF font character set identity, according to + * the BDF specification. + * + * @input: + * face :: + * A handle to the input face. + * + * @output: + * acharset_encoding :: + * Charset encoding, as a C~string, owned by the face. + * + * acharset_registry :: + * Charset registry, as a C~string, owned by the face. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with BDF faces, returning an error otherwise. + */ + FT_EXPORT( FT_Error ) + FT_Get_BDF_Charset_ID( FT_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ); + + + /********************************************************************** + * + * @function: + * FT_Get_BDF_Property + * + * @description: + * Retrieve a BDF property from a BDF or PCF font file. + * + * @input: + * face :: A handle to the input face. + * + * name :: The property name. + * + * @output: + * aproperty :: The property. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function works with BDF _and_ PCF fonts. It returns an error + * otherwise. It also returns an error if the property is not in the + * font. + * + * A `property' is a either key-value pair within the STARTPROPERTIES + * ... ENDPROPERTIES block of a BDF font or a key-value pair from the + * `info->props' array within a `FontRec' structure of a PCF font. + * + * Integer properties are always stored as `signed' within PCF fonts; + * consequently, @BDF_PROPERTY_TYPE_CARDINAL is a possible return value + * for BDF fonts only. + * + * In case of error, `aproperty->type' is always set to + * @BDF_PROPERTY_TYPE_NONE. + */ + FT_EXPORT( FT_Error ) + FT_Get_BDF_Property( FT_Face face, + const char* prop_name, + BDF_PropertyRec *aproperty ); + + /* */ + +FT_END_HEADER + +#endif /* __FTBDF_H__ */ + + +/* END */ diff --git a/include/freetype/ftbitmap.h b/include/freetype/ftbitmap.h new file mode 100644 index 0000000..9274236 --- /dev/null +++ b/include/freetype/ftbitmap.h @@ -0,0 +1,227 @@ +/***************************************************************************/ +/* */ +/* ftbitmap.h */ +/* */ +/* FreeType utility functions for bitmaps (specification). */ +/* */ +/* Copyright 2004, 2005, 2006, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTBITMAP_H__ +#define __FTBITMAP_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* bitmap_handling */ + /* */ + /* <Title> */ + /* Bitmap Handling */ + /* */ + /* <Abstract> */ + /* Handling FT_Bitmap objects. */ + /* */ + /* <Description> */ + /* This section contains functions for converting FT_Bitmap objects. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Bitmap_New */ + /* */ + /* <Description> */ + /* Initialize a pointer to an @FT_Bitmap structure. */ + /* */ + /* <InOut> */ + /* abitmap :: A pointer to the bitmap structure. */ + /* */ + FT_EXPORT( void ) + FT_Bitmap_New( FT_Bitmap *abitmap ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Bitmap_Copy */ + /* */ + /* <Description> */ + /* Copy a bitmap into another one. */ + /* */ + /* <Input> */ + /* library :: A handle to a library object. */ + /* */ + /* source :: A handle to the source bitmap. */ + /* */ + /* <Output> */ + /* target :: A handle to the target bitmap. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Bitmap_Copy( FT_Library library, + const FT_Bitmap *source, + FT_Bitmap *target); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Bitmap_Embolden */ + /* */ + /* <Description> */ + /* Embolden a bitmap. The new bitmap will be about `xStrength' */ + /* pixels wider and `yStrength' pixels higher. The left and bottom */ + /* borders are kept unchanged. */ + /* */ + /* <Input> */ + /* library :: A handle to a library object. */ + /* */ + /* xStrength :: How strong the glyph is emboldened horizontally. */ + /* Expressed in 26.6 pixel format. */ + /* */ + /* yStrength :: How strong the glyph is emboldened vertically. */ + /* Expressed in 26.6 pixel format. */ + /* */ + /* <InOut> */ + /* bitmap :: A handle to the target bitmap. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The current implementation restricts `xStrength' to be less than */ + /* or equal to~8 if bitmap is of pixel_mode @FT_PIXEL_MODE_MONO. */ + /* */ + /* If you want to embolden the bitmap owned by a @FT_GlyphSlotRec, */ + /* you should call @FT_GlyphSlot_Own_Bitmap on the slot first. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Bitmap_Embolden( FT_Library library, + FT_Bitmap* bitmap, + FT_Pos xStrength, + FT_Pos yStrength ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Bitmap_Convert */ + /* */ + /* <Description> */ + /* Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, or 8bpp to a */ + /* bitmap object with depth 8bpp, making the number of used bytes per */ + /* line (a.k.a. the `pitch') a multiple of `alignment'. */ + /* */ + /* <Input> */ + /* library :: A handle to a library object. */ + /* */ + /* source :: The source bitmap. */ + /* */ + /* alignment :: The pitch of the bitmap is a multiple of this */ + /* parameter. Common values are 1, 2, or 4. */ + /* */ + /* <Output> */ + /* target :: The target bitmap. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* It is possible to call @FT_Bitmap_Convert multiple times without */ + /* calling @FT_Bitmap_Done (the memory is simply reallocated). */ + /* */ + /* Use @FT_Bitmap_Done to finally remove the bitmap object. */ + /* */ + /* The `library' argument is taken to have access to FreeType's */ + /* memory handling functions. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Bitmap_Convert( FT_Library library, + const FT_Bitmap *source, + FT_Bitmap *target, + FT_Int alignment ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_GlyphSlot_Own_Bitmap */ + /* */ + /* <Description> */ + /* Make sure that a glyph slot owns `slot->bitmap'. */ + /* */ + /* <Input> */ + /* slot :: The glyph slot. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* This function is to be used in combination with */ + /* @FT_Bitmap_Embolden. */ + /* */ + FT_EXPORT( FT_Error ) + FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot slot ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Bitmap_Done */ + /* */ + /* <Description> */ + /* Destroy a bitmap object created with @FT_Bitmap_New. */ + /* */ + /* <Input> */ + /* library :: A handle to a library object. */ + /* */ + /* bitmap :: The bitmap object to be freed. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The `library' argument is taken to have access to FreeType's */ + /* memory handling functions. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Bitmap_Done( FT_Library library, + FT_Bitmap *bitmap ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTBITMAP_H__ */ + + +/* END */ diff --git a/include/freetype/ftbzip2.h b/include/freetype/ftbzip2.h new file mode 100644 index 0000000..1bf81b1 --- /dev/null +++ b/include/freetype/ftbzip2.h @@ -0,0 +1,102 @@ +/***************************************************************************/ +/* */ +/* ftbzip2.h */ +/* */ +/* Bzip2-compressed stream support. */ +/* */ +/* Copyright 2010 by */ +/* Joel Klinghed. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTBZIP2_H__ +#define __FTBZIP2_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /* */ + /* <Section> */ + /* bzip2 */ + /* */ + /* <Title> */ + /* BZIP2 Streams */ + /* */ + /* <Abstract> */ + /* Using bzip2-compressed font files. */ + /* */ + /* <Description> */ + /* This section contains the declaration of Bzip2-specific functions. */ + /* */ + /*************************************************************************/ + + + /************************************************************************ + * + * @function: + * FT_Stream_OpenBzip2 + * + * @description: + * Open a new stream to parse bzip2-compressed font files. This is + * mainly used to support the compressed `*.pcf.bz2' fonts that come + * with XFree86. + * + * @input: + * stream :: + * The target embedding stream. + * + * source :: + * The source stream. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The source stream must be opened _before_ calling this function. + * + * Calling the internal function `FT_Stream_Close' on the new stream will + * *not* call `FT_Stream_Close' on the source stream. None of the stream + * objects will be released to the heap. + * + * The stream implementation is very basic and resets the decompression + * process each time seeking backwards is needed within the stream. + * + * In certain builds of the library, bzip2 compression recognition is + * automatically handled when calling @FT_New_Face or @FT_Open_Face. + * This means that if no font driver is capable of handling the raw + * compressed file, the library will try to open a bzip2 compressed stream + * from it and re-open the face with it. + * + * This function may return `FT_Err_Unimplemented_Feature' if your build + * of FreeType was not compiled with bzip2 support. + */ + FT_EXPORT( FT_Error ) + FT_Stream_OpenBzip2( FT_Stream stream, + FT_Stream source ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTBZIP2_H__ */ + + +/* END */ diff --git a/include/freetype/ftcache.h b/include/freetype/ftcache.h new file mode 100644 index 0000000..6af5306 --- /dev/null +++ b/include/freetype/ftcache.h @@ -0,0 +1,1140 @@ +/***************************************************************************/ +/* */ +/* ftcache.h */ +/* */ +/* FreeType Cache subsystem (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTCACHE_H__ +#define __FTCACHE_H__ + + +#include <ft2build.h> +#include FT_GLYPH_H + + +FT_BEGIN_HEADER + + + /************************************************************************* + * + * <Section> + * cache_subsystem + * + * <Title> + * Cache Sub-System + * + * <Abstract> + * How to cache face, size, and glyph data with FreeType~2. + * + * <Description> + * This section describes the FreeType~2 cache sub-system, which is used + * to limit the number of concurrently opened @FT_Face and @FT_Size + * objects, as well as caching information like character maps and glyph + * images while limiting their maximum memory usage. + * + * Note that all types and functions begin with the `FTC_' prefix. + * + * The cache is highly portable and thus doesn't know anything about the + * fonts installed on your system, or how to access them. This implies + * the following scheme: + * + * First, available or installed font faces are uniquely identified by + * @FTC_FaceID values, provided to the cache by the client. Note that + * the cache only stores and compares these values, and doesn't try to + * interpret them in any way. + * + * Second, the cache calls, only when needed, a client-provided function + * to convert an @FTC_FaceID into a new @FT_Face object. The latter is + * then completely managed by the cache, including its termination + * through @FT_Done_Face. To monitor termination of face objects, the + * finalizer callback in the `generic' field of the @FT_Face object can + * be used, which might also be used to store the @FTC_FaceID of the + * face. + * + * Clients are free to map face IDs to anything else. The most simple + * usage is to associate them to a (pathname,face_index) pair that is + * used to call @FT_New_Face. However, more complex schemes are also + * possible. + * + * Note that for the cache to work correctly, the face ID values must be + * *persistent*, which means that the contents they point to should not + * change at runtime, or that their value should not become invalid. + * + * If this is unavoidable (e.g., when a font is uninstalled at runtime), + * you should call @FTC_Manager_RemoveFaceID as soon as possible, to let + * the cache get rid of any references to the old @FTC_FaceID it may + * keep internally. Failure to do so will lead to incorrect behaviour + * or even crashes. + * + * To use the cache, start with calling @FTC_Manager_New to create a new + * @FTC_Manager object, which models a single cache instance. You can + * then look up @FT_Face and @FT_Size objects with + * @FTC_Manager_LookupFace and @FTC_Manager_LookupSize, respectively. + * + * If you want to use the charmap caching, call @FTC_CMapCache_New, then + * later use @FTC_CMapCache_Lookup to perform the equivalent of + * @FT_Get_Char_Index, only much faster. + * + * If you want to use the @FT_Glyph caching, call @FTC_ImageCache, then + * later use @FTC_ImageCache_Lookup to retrieve the corresponding + * @FT_Glyph objects from the cache. + * + * If you need lots of small bitmaps, it is much more memory efficient + * to call @FTC_SBitCache_New followed by @FTC_SBitCache_Lookup. This + * returns @FTC_SBitRec structures, which are used to store small + * bitmaps directly. (A small bitmap is one whose metrics and + * dimensions all fit into 8-bit integers). + * + * We hope to also provide a kerning cache in the near future. + * + * + * <Order> + * FTC_Manager + * FTC_FaceID + * FTC_Face_Requester + * + * FTC_Manager_New + * FTC_Manager_Reset + * FTC_Manager_Done + * FTC_Manager_LookupFace + * FTC_Manager_LookupSize + * FTC_Manager_RemoveFaceID + * + * FTC_Node + * FTC_Node_Unref + * + * FTC_ImageCache + * FTC_ImageCache_New + * FTC_ImageCache_Lookup + * + * FTC_SBit + * FTC_SBitCache + * FTC_SBitCache_New + * FTC_SBitCache_Lookup + * + * FTC_CMapCache + * FTC_CMapCache_New + * FTC_CMapCache_Lookup + * + *************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BASIC TYPE DEFINITIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /************************************************************************* + * + * @type: FTC_FaceID + * + * @description: + * An opaque pointer type that is used to identity face objects. The + * contents of such objects is application-dependent. + * + * These pointers are typically used to point to a user-defined + * structure containing a font file path, and face index. + * + * @note: + * Never use NULL as a valid @FTC_FaceID. + * + * Face IDs are passed by the client to the cache manager, which calls, + * when needed, the @FTC_Face_Requester to translate them into new + * @FT_Face objects. + * + * If the content of a given face ID changes at runtime, or if the value + * becomes invalid (e.g., when uninstalling a font), you should + * immediately call @FTC_Manager_RemoveFaceID before any other cache + * function. + * + * Failure to do so will result in incorrect behaviour or even + * memory leaks and crashes. + */ + typedef FT_Pointer FTC_FaceID; + + + /************************************************************************ + * + * @functype: + * FTC_Face_Requester + * + * @description: + * A callback function provided by client applications. It is used by + * the cache manager to translate a given @FTC_FaceID into a new valid + * @FT_Face object, on demand. + * + * <Input> + * face_id :: + * The face ID to resolve. + * + * library :: + * A handle to a FreeType library object. + * + * req_data :: + * Application-provided request data (see note below). + * + * <Output> + * aface :: + * A new @FT_Face handle. + * + * <Return> + * FreeType error code. 0~means success. + * + * <Note> + * The third parameter `req_data' is the same as the one passed by the + * client when @FTC_Manager_New is called. + * + * The face requester should not perform funny things on the returned + * face object, like creating a new @FT_Size for it, or setting a + * transformation through @FT_Set_Transform! + */ + typedef FT_Error + (*FTC_Face_Requester)( FTC_FaceID face_id, + FT_Library library, + FT_Pointer request_data, + FT_Face* aface ); + + /* */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* these macros are incompatible with LLP64, should not be used */ + +#define FT_POINTER_TO_ULONG( p ) ( (FT_ULong)(FT_Pointer)(p) ) + +#define FTC_FACE_ID_HASH( i ) \ + ((FT_UInt32)(( FT_POINTER_TO_ULONG( i ) >> 3 ) ^ \ + ( FT_POINTER_TO_ULONG( i ) << 7 ) ) ) + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CACHE MANAGER OBJECT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FTC_Manager */ + /* */ + /* <Description> */ + /* This object corresponds to one instance of the cache-subsystem. */ + /* It is used to cache one or more @FT_Face objects, along with */ + /* corresponding @FT_Size objects. */ + /* */ + /* The manager intentionally limits the total number of opened */ + /* @FT_Face and @FT_Size objects to control memory usage. See the */ + /* `max_faces' and `max_sizes' parameters of @FTC_Manager_New. */ + /* */ + /* The manager is also used to cache `nodes' of various types while */ + /* limiting their total memory usage. */ + /* */ + /* All limitations are enforced by keeping lists of managed objects */ + /* in most-recently-used order, and flushing old nodes to make room */ + /* for new ones. */ + /* */ + typedef struct FTC_ManagerRec_* FTC_Manager; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FTC_Node */ + /* */ + /* <Description> */ + /* An opaque handle to a cache node object. Each cache node is */ + /* reference-counted. A node with a count of~0 might be flushed */ + /* out of a full cache whenever a lookup request is performed. */ + /* */ + /* If you look up nodes, you have the ability to `acquire' them, */ + /* i.e., to increment their reference count. This will prevent the */ + /* node from being flushed out of the cache until you explicitly */ + /* `release' it (see @FTC_Node_Unref). */ + /* */ + /* See also @FTC_SBitCache_Lookup and @FTC_ImageCache_Lookup. */ + /* */ + typedef struct FTC_NodeRec_* FTC_Node; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Manager_New */ + /* */ + /* <Description> */ + /* Create a new cache manager. */ + /* */ + /* <Input> */ + /* library :: The parent FreeType library handle to use. */ + /* */ + /* max_faces :: Maximum number of opened @FT_Face objects managed by */ + /* this cache instance. Use~0 for defaults. */ + /* */ + /* max_sizes :: Maximum number of opened @FT_Size objects managed by */ + /* this cache instance. Use~0 for defaults. */ + /* */ + /* max_bytes :: Maximum number of bytes to use for cached data nodes. */ + /* Use~0 for defaults. Note that this value does not */ + /* account for managed @FT_Face and @FT_Size objects. */ + /* */ + /* requester :: An application-provided callback used to translate */ + /* face IDs into real @FT_Face objects. */ + /* */ + /* req_data :: A generic pointer that is passed to the requester */ + /* each time it is called (see @FTC_Face_Requester). */ + /* */ + /* <Output> */ + /* amanager :: A handle to a new manager object. 0~in case of */ + /* failure. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FTC_Manager_New( FT_Library library, + FT_UInt max_faces, + FT_UInt max_sizes, + FT_ULong max_bytes, + FTC_Face_Requester requester, + FT_Pointer req_data, + FTC_Manager *amanager ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Manager_Reset */ + /* */ + /* <Description> */ + /* Empty a given cache manager. This simply gets rid of all the */ + /* currently cached @FT_Face and @FT_Size objects within the manager. */ + /* */ + /* <InOut> */ + /* manager :: A handle to the manager. */ + /* */ + FT_EXPORT( void ) + FTC_Manager_Reset( FTC_Manager manager ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Manager_Done */ + /* */ + /* <Description> */ + /* Destroy a given manager after emptying it. */ + /* */ + /* <Input> */ + /* manager :: A handle to the target cache manager object. */ + /* */ + FT_EXPORT( void ) + FTC_Manager_Done( FTC_Manager manager ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Manager_LookupFace */ + /* */ + /* <Description> */ + /* Retrieve the @FT_Face object that corresponds to a given face ID */ + /* through a cache manager. */ + /* */ + /* <Input> */ + /* manager :: A handle to the cache manager. */ + /* */ + /* face_id :: The ID of the face object. */ + /* */ + /* <Output> */ + /* aface :: A handle to the face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The returned @FT_Face object is always owned by the manager. You */ + /* should never try to discard it yourself. */ + /* */ + /* The @FT_Face object doesn't necessarily have a current size object */ + /* (i.e., face->size can be 0). If you need a specific `font size', */ + /* use @FTC_Manager_LookupSize instead. */ + /* */ + /* Never change the face's transformation matrix (i.e., never call */ + /* the @FT_Set_Transform function) on a returned face! If you need */ + /* to transform glyphs, do it yourself after glyph loading. */ + /* */ + /* When you perform a lookup, out-of-memory errors are detected */ + /* _within_ the lookup and force incremental flushes of the cache */ + /* until enough memory is released for the lookup to succeed. */ + /* */ + /* If a lookup fails with `FT_Err_Out_Of_Memory' the cache has */ + /* already been completely flushed, and still no memory was available */ + /* for the operation. */ + /* */ + FT_EXPORT( FT_Error ) + FTC_Manager_LookupFace( FTC_Manager manager, + FTC_FaceID face_id, + FT_Face *aface ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FTC_ScalerRec */ + /* */ + /* <Description> */ + /* A structure used to describe a given character size in either */ + /* pixels or points to the cache manager. See */ + /* @FTC_Manager_LookupSize. */ + /* */ + /* <Fields> */ + /* face_id :: The source face ID. */ + /* */ + /* width :: The character width. */ + /* */ + /* height :: The character height. */ + /* */ + /* pixel :: A Boolean. If 1, the `width' and `height' fields are */ + /* interpreted as integer pixel character sizes. */ + /* Otherwise, they are expressed as 1/64th of points. */ + /* */ + /* x_res :: Only used when `pixel' is value~0 to indicate the */ + /* horizontal resolution in dpi. */ + /* */ + /* y_res :: Only used when `pixel' is value~0 to indicate the */ + /* vertical resolution in dpi. */ + /* */ + /* <Note> */ + /* This type is mainly used to retrieve @FT_Size objects through the */ + /* cache manager. */ + /* */ + typedef struct FTC_ScalerRec_ + { + FTC_FaceID face_id; + FT_UInt width; + FT_UInt height; + FT_Int pixel; + FT_UInt x_res; + FT_UInt y_res; + + } FTC_ScalerRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FTC_Scaler */ + /* */ + /* <Description> */ + /* A handle to an @FTC_ScalerRec structure. */ + /* */ + typedef struct FTC_ScalerRec_* FTC_Scaler; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Manager_LookupSize */ + /* */ + /* <Description> */ + /* Retrieve the @FT_Size object that corresponds to a given */ + /* @FTC_ScalerRec pointer through a cache manager. */ + /* */ + /* <Input> */ + /* manager :: A handle to the cache manager. */ + /* */ + /* scaler :: A scaler handle. */ + /* */ + /* <Output> */ + /* asize :: A handle to the size object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The returned @FT_Size object is always owned by the manager. You */ + /* should never try to discard it by yourself. */ + /* */ + /* You can access the parent @FT_Face object simply as `size->face' */ + /* if you need it. Note that this object is also owned by the */ + /* manager. */ + /* */ + /* <Note> */ + /* When you perform a lookup, out-of-memory errors are detected */ + /* _within_ the lookup and force incremental flushes of the cache */ + /* until enough memory is released for the lookup to succeed. */ + /* */ + /* If a lookup fails with `FT_Err_Out_Of_Memory' the cache has */ + /* already been completely flushed, and still no memory is available */ + /* for the operation. */ + /* */ + FT_EXPORT( FT_Error ) + FTC_Manager_LookupSize( FTC_Manager manager, + FTC_Scaler scaler, + FT_Size *asize ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Node_Unref */ + /* */ + /* <Description> */ + /* Decrement a cache node's internal reference count. When the count */ + /* reaches 0, it is not destroyed but becomes eligible for subsequent */ + /* cache flushes. */ + /* */ + /* <Input> */ + /* node :: The cache node handle. */ + /* */ + /* manager :: The cache manager handle. */ + /* */ + FT_EXPORT( void ) + FTC_Node_Unref( FTC_Node node, + FTC_Manager manager ); + + + /************************************************************************* + * + * @function: + * FTC_Manager_RemoveFaceID + * + * @description: + * A special function used to indicate to the cache manager that + * a given @FTC_FaceID is no longer valid, either because its + * content changed, or because it was deallocated or uninstalled. + * + * @input: + * manager :: + * The cache manager handle. + * + * face_id :: + * The @FTC_FaceID to be removed. + * + * @note: + * This function flushes all nodes from the cache corresponding to this + * `face_id', with the exception of nodes with a non-null reference + * count. + * + * Such nodes are however modified internally so as to never appear + * in later lookups with the same `face_id' value, and to be immediately + * destroyed when released by all their users. + * + */ + FT_EXPORT( void ) + FTC_Manager_RemoveFaceID( FTC_Manager manager, + FTC_FaceID face_id ); + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* cache_subsystem */ + /* */ + /*************************************************************************/ + + /************************************************************************* + * + * @type: + * FTC_CMapCache + * + * @description: + * An opaque handle used to model a charmap cache. This cache is to + * hold character codes -> glyph indices mappings. + * + */ + typedef struct FTC_CMapCacheRec_* FTC_CMapCache; + + + /************************************************************************* + * + * @function: + * FTC_CMapCache_New + * + * @description: + * Create a new charmap cache. + * + * @input: + * manager :: + * A handle to the cache manager. + * + * @output: + * acache :: + * A new cache handle. NULL in case of error. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * Like all other caches, this one will be destroyed with the cache + * manager. + * + */ + FT_EXPORT( FT_Error ) + FTC_CMapCache_New( FTC_Manager manager, + FTC_CMapCache *acache ); + + + /************************************************************************ + * + * @function: + * FTC_CMapCache_Lookup + * + * @description: + * Translate a character code into a glyph index, using the charmap + * cache. + * + * @input: + * cache :: + * A charmap cache handle. + * + * face_id :: + * The source face ID. + * + * cmap_index :: + * The index of the charmap in the source face. Any negative value + * means to use the cache @FT_Face's default charmap. + * + * char_code :: + * The character code (in the corresponding charmap). + * + * @return: + * Glyph index. 0~means `no glyph'. + * + */ + FT_EXPORT( FT_UInt ) + FTC_CMapCache_Lookup( FTC_CMapCache cache, + FTC_FaceID face_id, + FT_Int cmap_index, + FT_UInt32 char_code ); + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* cache_subsystem */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** IMAGE CACHE OBJECT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /************************************************************************* + * + * @struct: + * FTC_ImageTypeRec + * + * @description: + * A structure used to model the type of images in a glyph cache. + * + * @fields: + * face_id :: + * The face ID. + * + * width :: + * The width in pixels. + * + * height :: + * The height in pixels. + * + * flags :: + * The load flags, as in @FT_Load_Glyph. + * + */ + typedef struct FTC_ImageTypeRec_ + { + FTC_FaceID face_id; + FT_Int width; + FT_Int height; + FT_Int32 flags; + + } FTC_ImageTypeRec; + + + /************************************************************************* + * + * @type: + * FTC_ImageType + * + * @description: + * A handle to an @FTC_ImageTypeRec structure. + * + */ + typedef struct FTC_ImageTypeRec_* FTC_ImageType; + + + /* */ + + +#define FTC_IMAGE_TYPE_COMPARE( d1, d2 ) \ + ( (d1)->face_id == (d2)->face_id && \ + (d1)->width == (d2)->width && \ + (d1)->flags == (d2)->flags ) + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* this macro is incompatible with LLP64, should not be used */ + +#define FTC_IMAGE_TYPE_HASH( d ) \ + (FT_UFast)( FTC_FACE_ID_HASH( (d)->face_id ) ^ \ + ( (d)->width << 8 ) ^ (d)->height ^ \ + ( (d)->flags << 4 ) ) + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FTC_ImageCache */ + /* */ + /* <Description> */ + /* A handle to an glyph image cache object. They are designed to */ + /* hold many distinct glyph images while not exceeding a certain */ + /* memory threshold. */ + /* */ + typedef struct FTC_ImageCacheRec_* FTC_ImageCache; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_ImageCache_New */ + /* */ + /* <Description> */ + /* Create a new glyph image cache. */ + /* */ + /* <Input> */ + /* manager :: The parent manager for the image cache. */ + /* */ + /* <Output> */ + /* acache :: A handle to the new glyph image cache object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FTC_ImageCache_New( FTC_Manager manager, + FTC_ImageCache *acache ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_ImageCache_Lookup */ + /* */ + /* <Description> */ + /* Retrieve a given glyph image from a glyph image cache. */ + /* */ + /* <Input> */ + /* cache :: A handle to the source glyph image cache. */ + /* */ + /* type :: A pointer to a glyph image type descriptor. */ + /* */ + /* gindex :: The glyph index to retrieve. */ + /* */ + /* <Output> */ + /* aglyph :: The corresponding @FT_Glyph object. 0~in case of */ + /* failure. */ + /* */ + /* anode :: Used to return the address of of the corresponding cache */ + /* node after incrementing its reference count (see note */ + /* below). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The returned glyph is owned and managed by the glyph image cache. */ + /* Never try to transform or discard it manually! You can however */ + /* create a copy with @FT_Glyph_Copy and modify the new one. */ + /* */ + /* If `anode' is _not_ NULL, it receives the address of the cache */ + /* node containing the glyph image, after increasing its reference */ + /* count. This ensures that the node (as well as the @FT_Glyph) will */ + /* always be kept in the cache until you call @FTC_Node_Unref to */ + /* `release' it. */ + /* */ + /* If `anode' is NULL, the cache node is left unchanged, which means */ + /* that the @FT_Glyph could be flushed out of the cache on the next */ + /* call to one of the caching sub-system APIs. Don't assume that it */ + /* is persistent! */ + /* */ + FT_EXPORT( FT_Error ) + FTC_ImageCache_Lookup( FTC_ImageCache cache, + FTC_ImageType type, + FT_UInt gindex, + FT_Glyph *aglyph, + FTC_Node *anode ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_ImageCache_LookupScaler */ + /* */ + /* <Description> */ + /* A variant of @FTC_ImageCache_Lookup that uses an @FTC_ScalerRec */ + /* to specify the face ID and its size. */ + /* */ + /* <Input> */ + /* cache :: A handle to the source glyph image cache. */ + /* */ + /* scaler :: A pointer to a scaler descriptor. */ + /* */ + /* load_flags :: The corresponding load flags. */ + /* */ + /* gindex :: The glyph index to retrieve. */ + /* */ + /* <Output> */ + /* aglyph :: The corresponding @FT_Glyph object. 0~in case of */ + /* failure. */ + /* */ + /* anode :: Used to return the address of of the corresponding */ + /* cache node after incrementing its reference count */ + /* (see note below). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The returned glyph is owned and managed by the glyph image cache. */ + /* Never try to transform or discard it manually! You can however */ + /* create a copy with @FT_Glyph_Copy and modify the new one. */ + /* */ + /* If `anode' is _not_ NULL, it receives the address of the cache */ + /* node containing the glyph image, after increasing its reference */ + /* count. This ensures that the node (as well as the @FT_Glyph) will */ + /* always be kept in the cache until you call @FTC_Node_Unref to */ + /* `release' it. */ + /* */ + /* If `anode' is NULL, the cache node is left unchanged, which means */ + /* that the @FT_Glyph could be flushed out of the cache on the next */ + /* call to one of the caching sub-system APIs. Don't assume that it */ + /* is persistent! */ + /* */ + /* Calls to @FT_Set_Char_Size and friends have no effect on cached */ + /* glyphs; you should always use the FreeType cache API instead. */ + /* */ + FT_EXPORT( FT_Error ) + FTC_ImageCache_LookupScaler( FTC_ImageCache cache, + FTC_Scaler scaler, + FT_ULong load_flags, + FT_UInt gindex, + FT_Glyph *aglyph, + FTC_Node *anode ); + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FTC_SBit */ + /* */ + /* <Description> */ + /* A handle to a small bitmap descriptor. See the @FTC_SBitRec */ + /* structure for details. */ + /* */ + typedef struct FTC_SBitRec_* FTC_SBit; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FTC_SBitRec */ + /* */ + /* <Description> */ + /* A very compact structure used to describe a small glyph bitmap. */ + /* */ + /* <Fields> */ + /* width :: The bitmap width in pixels. */ + /* */ + /* height :: The bitmap height in pixels. */ + /* */ + /* left :: The horizontal distance from the pen position to the */ + /* left bitmap border (a.k.a. `left side bearing', or */ + /* `lsb'). */ + /* */ + /* top :: The vertical distance from the pen position (on the */ + /* baseline) to the upper bitmap border (a.k.a. `top */ + /* side bearing'). The distance is positive for upwards */ + /* y~coordinates. */ + /* */ + /* format :: The format of the glyph bitmap (monochrome or gray). */ + /* */ + /* max_grays :: Maximum gray level value (in the range 1 to~255). */ + /* */ + /* pitch :: The number of bytes per bitmap line. May be positive */ + /* or negative. */ + /* */ + /* xadvance :: The horizontal advance width in pixels. */ + /* */ + /* yadvance :: The vertical advance height in pixels. */ + /* */ + /* buffer :: A pointer to the bitmap pixels. */ + /* */ + typedef struct FTC_SBitRec_ + { + FT_Byte width; + FT_Byte height; + FT_Char left; + FT_Char top; + + FT_Byte format; + FT_Byte max_grays; + FT_Short pitch; + FT_Char xadvance; + FT_Char yadvance; + + FT_Byte* buffer; + + } FTC_SBitRec; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FTC_SBitCache */ + /* */ + /* <Description> */ + /* A handle to a small bitmap cache. These are special cache objects */ + /* used to store small glyph bitmaps (and anti-aliased pixmaps) in a */ + /* much more efficient way than the traditional glyph image cache */ + /* implemented by @FTC_ImageCache. */ + /* */ + typedef struct FTC_SBitCacheRec_* FTC_SBitCache; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_SBitCache_New */ + /* */ + /* <Description> */ + /* Create a new cache to store small glyph bitmaps. */ + /* */ + /* <Input> */ + /* manager :: A handle to the source cache manager. */ + /* */ + /* <Output> */ + /* acache :: A handle to the new sbit cache. NULL in case of error. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FTC_SBitCache_New( FTC_Manager manager, + FTC_SBitCache *acache ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_SBitCache_Lookup */ + /* */ + /* <Description> */ + /* Look up a given small glyph bitmap in a given sbit cache and */ + /* `lock' it to prevent its flushing from the cache until needed. */ + /* */ + /* <Input> */ + /* cache :: A handle to the source sbit cache. */ + /* */ + /* type :: A pointer to the glyph image type descriptor. */ + /* */ + /* gindex :: The glyph index. */ + /* */ + /* <Output> */ + /* sbit :: A handle to a small bitmap descriptor. */ + /* */ + /* anode :: Used to return the address of of the corresponding cache */ + /* node after incrementing its reference count (see note */ + /* below). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The small bitmap descriptor and its bit buffer are owned by the */ + /* cache and should never be freed by the application. They might */ + /* as well disappear from memory on the next cache lookup, so don't */ + /* treat them as persistent data. */ + /* */ + /* The descriptor's `buffer' field is set to~0 to indicate a missing */ + /* glyph bitmap. */ + /* */ + /* If `anode' is _not_ NULL, it receives the address of the cache */ + /* node containing the bitmap, after increasing its reference count. */ + /* This ensures that the node (as well as the image) will always be */ + /* kept in the cache until you call @FTC_Node_Unref to `release' it. */ + /* */ + /* If `anode' is NULL, the cache node is left unchanged, which means */ + /* that the bitmap could be flushed out of the cache on the next */ + /* call to one of the caching sub-system APIs. Don't assume that it */ + /* is persistent! */ + /* */ + FT_EXPORT( FT_Error ) + FTC_SBitCache_Lookup( FTC_SBitCache cache, + FTC_ImageType type, + FT_UInt gindex, + FTC_SBit *sbit, + FTC_Node *anode ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_SBitCache_LookupScaler */ + /* */ + /* <Description> */ + /* A variant of @FTC_SBitCache_Lookup that uses an @FTC_ScalerRec */ + /* to specify the face ID and its size. */ + /* */ + /* <Input> */ + /* cache :: A handle to the source sbit cache. */ + /* */ + /* scaler :: A pointer to the scaler descriptor. */ + /* */ + /* load_flags :: The corresponding load flags. */ + /* */ + /* gindex :: The glyph index. */ + /* */ + /* <Output> */ + /* sbit :: A handle to a small bitmap descriptor. */ + /* */ + /* anode :: Used to return the address of of the corresponding */ + /* cache node after incrementing its reference count */ + /* (see note below). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The small bitmap descriptor and its bit buffer are owned by the */ + /* cache and should never be freed by the application. They might */ + /* as well disappear from memory on the next cache lookup, so don't */ + /* treat them as persistent data. */ + /* */ + /* The descriptor's `buffer' field is set to~0 to indicate a missing */ + /* glyph bitmap. */ + /* */ + /* If `anode' is _not_ NULL, it receives the address of the cache */ + /* node containing the bitmap, after increasing its reference count. */ + /* This ensures that the node (as well as the image) will always be */ + /* kept in the cache until you call @FTC_Node_Unref to `release' it. */ + /* */ + /* If `anode' is NULL, the cache node is left unchanged, which means */ + /* that the bitmap could be flushed out of the cache on the next */ + /* call to one of the caching sub-system APIs. Don't assume that it */ + /* is persistent! */ + /* */ + FT_EXPORT( FT_Error ) + FTC_SBitCache_LookupScaler( FTC_SBitCache cache, + FTC_Scaler scaler, + FT_ULong load_flags, + FT_UInt gindex, + FTC_SBit *sbit, + FTC_Node *anode ); + + + /* */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /*@***********************************************************************/ + /* */ + /* <Struct> */ + /* FTC_FontRec */ + /* */ + /* <Description> */ + /* A simple structure used to describe a given `font' to the cache */ + /* manager. Note that a `font' is the combination of a given face */ + /* with a given character size. */ + /* */ + /* <Fields> */ + /* face_id :: The ID of the face to use. */ + /* */ + /* pix_width :: The character width in integer pixels. */ + /* */ + /* pix_height :: The character height in integer pixels. */ + /* */ + typedef struct FTC_FontRec_ + { + FTC_FaceID face_id; + FT_UShort pix_width; + FT_UShort pix_height; + + } FTC_FontRec; + + + /* */ + + +#define FTC_FONT_COMPARE( f1, f2 ) \ + ( (f1)->face_id == (f2)->face_id && \ + (f1)->pix_width == (f2)->pix_width && \ + (f1)->pix_height == (f2)->pix_height ) + + /* this macro is incompatible with LLP64, should not be used */ +#define FTC_FONT_HASH( f ) \ + (FT_UInt32)( FTC_FACE_ID_HASH((f)->face_id) ^ \ + ((f)->pix_width << 8) ^ \ + ((f)->pix_height) ) + + typedef FTC_FontRec* FTC_Font; + + + FT_EXPORT( FT_Error ) + FTC_Manager_Lookup_Face( FTC_Manager manager, + FTC_FaceID face_id, + FT_Face *aface ); + + FT_EXPORT( FT_Error ) + FTC_Manager_Lookup_Size( FTC_Manager manager, + FTC_Font font, + FT_Face *aface, + FT_Size *asize ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /* */ + +FT_END_HEADER + +#endif /* __FTCACHE_H__ */ + + +/* END */ diff --git a/include/freetype/ftchapters.h b/include/freetype/ftchapters.h new file mode 100644 index 0000000..6cdf54e --- /dev/null +++ b/include/freetype/ftchapters.h @@ -0,0 +1,104 @@ +/***************************************************************************/ +/* */ +/* This file defines the structure of the FreeType reference. */ +/* It is used by the python script which generates the HTML files. */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* <Chapter> */ +/* general_remarks */ +/* */ +/* <Title> */ +/* General Remarks */ +/* */ +/* <Sections> */ +/* user_allocation */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* <Chapter> */ +/* core_api */ +/* */ +/* <Title> */ +/* Core API */ +/* */ +/* <Sections> */ +/* version */ +/* basic_types */ +/* base_interface */ +/* glyph_variants */ +/* glyph_management */ +/* mac_specific */ +/* sizes_management */ +/* header_file_macros */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* <Chapter> */ +/* format_specific */ +/* */ +/* <Title> */ +/* Format-Specific API */ +/* */ +/* <Sections> */ +/* multiple_masters */ +/* truetype_tables */ +/* type1_tables */ +/* sfnt_names */ +/* bdf_fonts */ +/* cid_fonts */ +/* pfr_fonts */ +/* winfnt_fonts */ +/* font_formats */ +/* gasp_table */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* <Chapter> */ +/* cache_subsystem */ +/* */ +/* <Title> */ +/* Cache Sub-System */ +/* */ +/* <Sections> */ +/* cache_subsystem */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* <Chapter> */ +/* support_api */ +/* */ +/* <Title> */ +/* Support API */ +/* */ +/* <Sections> */ +/* computations */ +/* list_processing */ +/* outline_processing */ +/* quick_advance */ +/* bitmap_handling */ +/* raster */ +/* glyph_stroker */ +/* system_interface */ +/* module_management */ +/* gzip */ +/* lzw */ +/* bzip2 */ +/* lcd_filtering */ +/* */ +/***************************************************************************/ diff --git a/include/freetype/ftcid.h b/include/freetype/ftcid.h new file mode 100644 index 0000000..203a30c --- /dev/null +++ b/include/freetype/ftcid.h @@ -0,0 +1,166 @@ +/***************************************************************************/ +/* */ +/* ftcid.h */ +/* */ +/* FreeType API for accessing CID font information (specification). */ +/* */ +/* Copyright 2007, 2009 by Dereg Clegg, Michael Toftdal. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTCID_H__ +#define __FTCID_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* cid_fonts */ + /* */ + /* <Title> */ + /* CID Fonts */ + /* */ + /* <Abstract> */ + /* CID-keyed font specific API. */ + /* */ + /* <Description> */ + /* This section contains the declaration of CID-keyed font specific */ + /* functions. */ + /* */ + /*************************************************************************/ + + + /********************************************************************** + * + * @function: + * FT_Get_CID_Registry_Ordering_Supplement + * + * @description: + * Retrieve the Registry/Ordering/Supplement triple (also known as the + * "R/O/S") from a CID-keyed font. + * + * @input: + * face :: + * A handle to the input face. + * + * @output: + * registry :: + * The registry, as a C~string, owned by the face. + * + * ordering :: + * The ordering, as a C~string, owned by the face. + * + * supplement :: + * The supplement. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with CID faces, returning an error + * otherwise. + * + * @since: + * 2.3.6 + */ + FT_EXPORT( FT_Error ) + FT_Get_CID_Registry_Ordering_Supplement( FT_Face face, + const char* *registry, + const char* *ordering, + FT_Int *supplement); + + + /********************************************************************** + * + * @function: + * FT_Get_CID_Is_Internally_CID_Keyed + * + * @description: + * Retrieve the type of the input face, CID keyed or not. In + * constrast to the @FT_IS_CID_KEYED macro this function returns + * successfully also for CID-keyed fonts in an SNFT wrapper. + * + * @input: + * face :: + * A handle to the input face. + * + * @output: + * is_cid :: + * The type of the face as an @FT_Bool. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with CID faces and OpenType fonts, + * returning an error otherwise. + * + * @since: + * 2.3.9 + */ + FT_EXPORT( FT_Error ) + FT_Get_CID_Is_Internally_CID_Keyed( FT_Face face, + FT_Bool *is_cid ); + + + /********************************************************************** + * + * @function: + * FT_Get_CID_From_Glyph_Index + * + * @description: + * Retrieve the CID of the input glyph index. + * + * @input: + * face :: + * A handle to the input face. + * + * glyph_index :: + * The input glyph index. + * + * @output: + * cid :: + * The CID as an @FT_UInt. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with CID faces and OpenType fonts, + * returning an error otherwise. + * + * @since: + * 2.3.9 + */ + FT_EXPORT( FT_Error ) + FT_Get_CID_From_Glyph_Index( FT_Face face, + FT_UInt glyph_index, + FT_UInt *cid ); + + /* */ + +FT_END_HEADER + +#endif /* __FTCID_H__ */ + + +/* END */ diff --git a/include/freetype/fterrdef.h b/include/freetype/fterrdef.h new file mode 100644 index 0000000..fb4b53b --- /dev/null +++ b/include/freetype/fterrdef.h @@ -0,0 +1,245 @@ +/***************************************************************************/ +/* */ +/* fterrdef.h */ +/* */ +/* FreeType error codes (specification). */ +/* */ +/* Copyright 2002, 2004, 2006, 2007, 2010-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*******************************************************************/ + /*******************************************************************/ + /***** *****/ + /***** LIST OF ERROR CODES/MESSAGES *****/ + /***** *****/ + /*******************************************************************/ + /*******************************************************************/ + + + /* You need to define both FT_ERRORDEF_ and FT_NOERRORDEF_ before */ + /* including this file. */ + + + /* generic errors */ + + FT_NOERRORDEF_( Ok, 0x00, \ + "no error" ) + + FT_ERRORDEF_( Cannot_Open_Resource, 0x01, \ + "cannot open resource" ) + FT_ERRORDEF_( Unknown_File_Format, 0x02, \ + "unknown file format" ) + FT_ERRORDEF_( Invalid_File_Format, 0x03, \ + "broken file" ) + FT_ERRORDEF_( Invalid_Version, 0x04, \ + "invalid FreeType version" ) + FT_ERRORDEF_( Lower_Module_Version, 0x05, \ + "module version is too low" ) + FT_ERRORDEF_( Invalid_Argument, 0x06, \ + "invalid argument" ) + FT_ERRORDEF_( Unimplemented_Feature, 0x07, \ + "unimplemented feature" ) + FT_ERRORDEF_( Invalid_Table, 0x08, \ + "broken table" ) + FT_ERRORDEF_( Invalid_Offset, 0x09, \ + "broken offset within table" ) + FT_ERRORDEF_( Array_Too_Large, 0x0A, \ + "array allocation size too large" ) + FT_ERRORDEF_( Missing_Module, 0x0B, \ + "missing module" ) + + /* glyph/character errors */ + + FT_ERRORDEF_( Invalid_Glyph_Index, 0x10, \ + "invalid glyph index" ) + FT_ERRORDEF_( Invalid_Character_Code, 0x11, \ + "invalid character code" ) + FT_ERRORDEF_( Invalid_Glyph_Format, 0x12, \ + "unsupported glyph image format" ) + FT_ERRORDEF_( Cannot_Render_Glyph, 0x13, \ + "cannot render this glyph format" ) + FT_ERRORDEF_( Invalid_Outline, 0x14, \ + "invalid outline" ) + FT_ERRORDEF_( Invalid_Composite, 0x15, \ + "invalid composite glyph" ) + FT_ERRORDEF_( Too_Many_Hints, 0x16, \ + "too many hints" ) + FT_ERRORDEF_( Invalid_Pixel_Size, 0x17, \ + "invalid pixel size" ) + + /* handle errors */ + + FT_ERRORDEF_( Invalid_Handle, 0x20, \ + "invalid object handle" ) + FT_ERRORDEF_( Invalid_Library_Handle, 0x21, \ + "invalid library handle" ) + FT_ERRORDEF_( Invalid_Driver_Handle, 0x22, \ + "invalid module handle" ) + FT_ERRORDEF_( Invalid_Face_Handle, 0x23, \ + "invalid face handle" ) + FT_ERRORDEF_( Invalid_Size_Handle, 0x24, \ + "invalid size handle" ) + FT_ERRORDEF_( Invalid_Slot_Handle, 0x25, \ + "invalid glyph slot handle" ) + FT_ERRORDEF_( Invalid_CharMap_Handle, 0x26, \ + "invalid charmap handle" ) + FT_ERRORDEF_( Invalid_Cache_Handle, 0x27, \ + "invalid cache manager handle" ) + FT_ERRORDEF_( Invalid_Stream_Handle, 0x28, \ + "invalid stream handle" ) + + /* driver errors */ + + FT_ERRORDEF_( Too_Many_Drivers, 0x30, \ + "too many modules" ) + FT_ERRORDEF_( Too_Many_Extensions, 0x31, \ + "too many extensions" ) + + /* memory errors */ + + FT_ERRORDEF_( Out_Of_Memory, 0x40, \ + "out of memory" ) + FT_ERRORDEF_( Unlisted_Object, 0x41, \ + "unlisted object" ) + + /* stream errors */ + + FT_ERRORDEF_( Cannot_Open_Stream, 0x51, \ + "cannot open stream" ) + FT_ERRORDEF_( Invalid_Stream_Seek, 0x52, \ + "invalid stream seek" ) + FT_ERRORDEF_( Invalid_Stream_Skip, 0x53, \ + "invalid stream skip" ) + FT_ERRORDEF_( Invalid_Stream_Read, 0x54, \ + "invalid stream read" ) + FT_ERRORDEF_( Invalid_Stream_Operation, 0x55, \ + "invalid stream operation" ) + FT_ERRORDEF_( Invalid_Frame_Operation, 0x56, \ + "invalid frame operation" ) + FT_ERRORDEF_( Nested_Frame_Access, 0x57, \ + "nested frame access" ) + FT_ERRORDEF_( Invalid_Frame_Read, 0x58, \ + "invalid frame read" ) + + /* raster errors */ + + FT_ERRORDEF_( Raster_Uninitialized, 0x60, \ + "raster uninitialized" ) + FT_ERRORDEF_( Raster_Corrupted, 0x61, \ + "raster corrupted" ) + FT_ERRORDEF_( Raster_Overflow, 0x62, \ + "raster overflow" ) + FT_ERRORDEF_( Raster_Negative_Height, 0x63, \ + "negative height while rastering" ) + + /* cache errors */ + + FT_ERRORDEF_( Too_Many_Caches, 0x70, \ + "too many registered caches" ) + + /* TrueType and SFNT errors */ + + FT_ERRORDEF_( Invalid_Opcode, 0x80, \ + "invalid opcode" ) + FT_ERRORDEF_( Too_Few_Arguments, 0x81, \ + "too few arguments" ) + FT_ERRORDEF_( Stack_Overflow, 0x82, \ + "stack overflow" ) + FT_ERRORDEF_( Code_Overflow, 0x83, \ + "code overflow" ) + FT_ERRORDEF_( Bad_Argument, 0x84, \ + "bad argument" ) + FT_ERRORDEF_( Divide_By_Zero, 0x85, \ + "division by zero" ) + FT_ERRORDEF_( Invalid_Reference, 0x86, \ + "invalid reference" ) + FT_ERRORDEF_( Debug_OpCode, 0x87, \ + "found debug opcode" ) + FT_ERRORDEF_( ENDF_In_Exec_Stream, 0x88, \ + "found ENDF opcode in execution stream" ) + FT_ERRORDEF_( Nested_DEFS, 0x89, \ + "nested DEFS" ) + FT_ERRORDEF_( Invalid_CodeRange, 0x8A, \ + "invalid code range" ) + FT_ERRORDEF_( Execution_Too_Long, 0x8B, \ + "execution context too long" ) + FT_ERRORDEF_( Too_Many_Function_Defs, 0x8C, \ + "too many function definitions" ) + FT_ERRORDEF_( Too_Many_Instruction_Defs, 0x8D, \ + "too many instruction definitions" ) + FT_ERRORDEF_( Table_Missing, 0x8E, \ + "SFNT font table missing" ) + FT_ERRORDEF_( Horiz_Header_Missing, 0x8F, \ + "horizontal header (hhea) table missing" ) + FT_ERRORDEF_( Locations_Missing, 0x90, \ + "locations (loca) table missing" ) + FT_ERRORDEF_( Name_Table_Missing, 0x91, \ + "name table missing" ) + FT_ERRORDEF_( CMap_Table_Missing, 0x92, \ + "character map (cmap) table missing" ) + FT_ERRORDEF_( Hmtx_Table_Missing, 0x93, \ + "horizontal metrics (hmtx) table missing" ) + FT_ERRORDEF_( Post_Table_Missing, 0x94, \ + "PostScript (post) table missing" ) + FT_ERRORDEF_( Invalid_Horiz_Metrics, 0x95, \ + "invalid horizontal metrics" ) + FT_ERRORDEF_( Invalid_CharMap_Format, 0x96, \ + "invalid character map (cmap) format" ) + FT_ERRORDEF_( Invalid_PPem, 0x97, \ + "invalid ppem value" ) + FT_ERRORDEF_( Invalid_Vert_Metrics, 0x98, \ + "invalid vertical metrics" ) + FT_ERRORDEF_( Could_Not_Find_Context, 0x99, \ + "could not find context" ) + FT_ERRORDEF_( Invalid_Post_Table_Format, 0x9A, \ + "invalid PostScript (post) table format" ) + FT_ERRORDEF_( Invalid_Post_Table, 0x9B, \ + "invalid PostScript (post) table" ) + + /* CFF, CID, and Type 1 errors */ + + FT_ERRORDEF_( Syntax_Error, 0xA0, \ + "opcode syntax error" ) + FT_ERRORDEF_( Stack_Underflow, 0xA1, \ + "argument stack underflow" ) + FT_ERRORDEF_( Ignore, 0xA2, \ + "ignore" ) + FT_ERRORDEF_( No_Unicode_Glyph_Name, 0xA3, \ + "no Unicode glyph name found" ) + + /* BDF errors */ + + FT_ERRORDEF_( Missing_Startfont_Field, 0xB0, \ + "`STARTFONT' field missing" ) + FT_ERRORDEF_( Missing_Font_Field, 0xB1, \ + "`FONT' field missing" ) + FT_ERRORDEF_( Missing_Size_Field, 0xB2, \ + "`SIZE' field missing" ) + FT_ERRORDEF_( Missing_Fontboundingbox_Field, 0xB3, \ + "`FONTBOUNDINGBOX' field missing" ) + FT_ERRORDEF_( Missing_Chars_Field, 0xB4, \ + "`CHARS' field missing" ) + FT_ERRORDEF_( Missing_Startchar_Field, 0xB5, \ + "`STARTCHAR' field missing" ) + FT_ERRORDEF_( Missing_Encoding_Field, 0xB6, \ + "`ENCODING' field missing" ) + FT_ERRORDEF_( Missing_Bbx_Field, 0xB7, \ + "`BBX' field missing" ) + FT_ERRORDEF_( Bbx_Too_Big, 0xB8, \ + "`BBX' too big" ) + FT_ERRORDEF_( Corrupted_Font_Header, 0xB9, \ + "Font header corrupted or missing fields" ) + FT_ERRORDEF_( Corrupted_Font_Glyphs, 0xBA, \ + "Font glyphs corrupted or missing fields" ) + + +/* END */ diff --git a/include/freetype/fterrors.h b/include/freetype/fterrors.h new file mode 100644 index 0000000..a54699f --- /dev/null +++ b/include/freetype/fterrors.h @@ -0,0 +1,207 @@ +/***************************************************************************/ +/* */ +/* fterrors.h */ +/* */ +/* FreeType error code handling (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This special header file is used to define the handling of FT2 */ + /* enumeration constants. It can also be used to generate error message */ + /* strings with a small macro trick explained below. */ + /* */ + /* I - Error Formats */ + /* ----------------- */ + /* */ + /* The configuration macro FT_CONFIG_OPTION_USE_MODULE_ERRORS can be */ + /* defined in ftoption.h in order to make the higher byte indicate */ + /* the module where the error has happened (this is not compatible */ + /* with standard builds of FreeType 2). You can then use the macro */ + /* FT_ERROR_BASE macro to extract the generic error code from an */ + /* FT_Error value. */ + /* */ + /* */ + /* II - Error Message strings */ + /* -------------------------- */ + /* */ + /* The error definitions below are made through special macros that */ + /* allow client applications to build a table of error message strings */ + /* if they need it. The strings are not included in a normal build of */ + /* FreeType 2 to save space (most client applications do not use */ + /* them). */ + /* */ + /* To do so, you have to define the following macros before including */ + /* this file: */ + /* */ + /* FT_ERROR_START_LIST :: */ + /* This macro is called before anything else to define the start of */ + /* the error list. It is followed by several FT_ERROR_DEF calls */ + /* (see below). */ + /* */ + /* FT_ERROR_DEF( e, v, s ) :: */ + /* This macro is called to define one single error. */ + /* `e' is the error code identifier (e.g. FT_Err_Invalid_Argument). */ + /* `v' is the error numerical value. */ + /* `s' is the corresponding error string. */ + /* */ + /* FT_ERROR_END_LIST :: */ + /* This macro ends the list. */ + /* */ + /* Additionally, you have to undefine __FTERRORS_H__ before #including */ + /* this file. */ + /* */ + /* Here is a simple example: */ + /* */ + /* { */ + /* #undef __FTERRORS_H__ */ + /* #define FT_ERRORDEF( e, v, s ) { e, s }, */ + /* #define FT_ERROR_START_LIST { */ + /* #define FT_ERROR_END_LIST { 0, 0 } }; */ + /* */ + /* const struct */ + /* { */ + /* int err_code; */ + /* const char* err_msg; */ + /* } ft_errors[] = */ + /* */ + /* #include FT_ERRORS_H */ + /* } */ + /* */ + /*************************************************************************/ + + +#ifndef __FTERRORS_H__ +#define __FTERRORS_H__ + + + /* include module base error codes */ +#include FT_MODULE_ERRORS_H + + + /*******************************************************************/ + /*******************************************************************/ + /***** *****/ + /***** SETUP MACROS *****/ + /***** *****/ + /*******************************************************************/ + /*******************************************************************/ + + +#undef FT_NEED_EXTERN_C + +#undef FT_ERR_XCAT +#undef FT_ERR_CAT + +#define FT_ERR_XCAT( x, y ) x ## y +#define FT_ERR_CAT( x, y ) FT_ERR_XCAT( x, y ) + + + /* FT_ERR_PREFIX is used as a prefix for error identifiers. */ + /* By default, we use `FT_Err_'. */ + /* */ +#ifndef FT_ERR_PREFIX +#define FT_ERR_PREFIX FT_Err_ +#endif + + + /* FT_ERR_BASE is used as the base for module-specific errors. */ + /* */ +#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS + +#ifndef FT_ERR_BASE +#define FT_ERR_BASE FT_Mod_Err_Base +#endif + +#else + +#undef FT_ERR_BASE +#define FT_ERR_BASE 0 + +#endif /* FT_CONFIG_OPTION_USE_MODULE_ERRORS */ + + + /* If FT_ERRORDEF is not defined, we need to define a simple */ + /* enumeration type. */ + /* */ +#ifndef FT_ERRORDEF + +#define FT_ERRORDEF( e, v, s ) e = v, +#define FT_ERROR_START_LIST enum { +#define FT_ERROR_END_LIST FT_ERR_CAT( FT_ERR_PREFIX, Max ) }; + +#ifdef __cplusplus +#define FT_NEED_EXTERN_C + extern "C" { +#endif + +#endif /* !FT_ERRORDEF */ + + + /* this macro is used to define an error */ +#define FT_ERRORDEF_( e, v, s ) \ + FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v + FT_ERR_BASE, s ) + + /* this is only used for <module>_Err_Ok, which must be 0! */ +#define FT_NOERRORDEF_( e, v, s ) \ + FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v, s ) + + +#ifdef FT_ERROR_START_LIST + FT_ERROR_START_LIST +#endif + + + /* now include the error codes */ +#include FT_ERROR_DEFINITIONS_H + + +#ifdef FT_ERROR_END_LIST + FT_ERROR_END_LIST +#endif + + + /*******************************************************************/ + /*******************************************************************/ + /***** *****/ + /***** SIMPLE CLEANUP *****/ + /***** *****/ + /*******************************************************************/ + /*******************************************************************/ + +#ifdef FT_NEED_EXTERN_C + } +#endif + +#undef FT_ERROR_START_LIST +#undef FT_ERROR_END_LIST + +#undef FT_ERRORDEF +#undef FT_ERRORDEF_ +#undef FT_NOERRORDEF_ + +#undef FT_NEED_EXTERN_C +#undef FT_ERR_BASE + + /* FT_KEEP_ERR_PREFIX is needed for ftvalid.h */ +#ifndef FT_KEEP_ERR_PREFIX +#undef FT_ERR_PREFIX +#else +#undef FT_KEEP_ERR_PREFIX +#endif + +#endif /* __FTERRORS_H__ */ + + +/* END */ diff --git a/include/freetype/ftgasp.h b/include/freetype/ftgasp.h new file mode 100644 index 0000000..453d4fa --- /dev/null +++ b/include/freetype/ftgasp.h @@ -0,0 +1,128 @@ +/***************************************************************************/ +/* */ +/* ftgasp.h */ +/* */ +/* Access of TrueType's `gasp' table (specification). */ +/* */ +/* Copyright 2007, 2008, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef _FT_GASP_H_ +#define _FT_GASP_H_ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + + /*************************************************************************** + * + * @section: + * gasp_table + * + * @title: + * Gasp Table + * + * @abstract: + * Retrieving TrueType `gasp' table entries. + * + * @description: + * The function @FT_Get_Gasp can be used to query a TrueType or OpenType + * font for specific entries in its `gasp' table, if any. This is + * mainly useful when implementing native TrueType hinting with the + * bytecode interpreter to duplicate the Windows text rendering results. + */ + + /************************************************************************* + * + * @enum: + * FT_GASP_XXX + * + * @description: + * A list of values and/or bit-flags returned by the @FT_Get_Gasp + * function. + * + * @values: + * FT_GASP_NO_TABLE :: + * This special value means that there is no GASP table in this face. + * It is up to the client to decide what to do. + * + * FT_GASP_DO_GRIDFIT :: + * Grid-fitting and hinting should be performed at the specified ppem. + * This *really* means TrueType bytecode interpretation. If this bit + * is not set, no hinting gets applied. + * + * FT_GASP_DO_GRAY :: + * Anti-aliased rendering should be performed at the specified ppem. + * If not set, do monochrome rendering. + * + * FT_GASP_SYMMETRIC_SMOOTHING :: + * If set, smoothing along multiple axes must be used with ClearType. + * + * FT_GASP_SYMMETRIC_GRIDFIT :: + * Grid-fitting must be used with ClearType's symmetric smoothing. + * + * @note: + * The bit-flags `FT_GASP_DO_GRIDFIT' and `FT_GASP_DO_GRAY' are to be + * used for standard font rasterization only. Independently of that, + * `FT_GASP_SYMMETRIC_SMOOTHING' and `FT_GASP_SYMMETRIC_GRIDFIT' are to + * be used if ClearType is enabled (and `FT_GASP_DO_GRIDFIT' and + * `FT_GASP_DO_GRAY' are consequently ignored). + * + * `ClearType' is Microsoft's implementation of LCD rendering, partly + * protected by patents. + * + * @since: + * 2.3.0 + */ +#define FT_GASP_NO_TABLE -1 +#define FT_GASP_DO_GRIDFIT 0x01 +#define FT_GASP_DO_GRAY 0x02 +#define FT_GASP_SYMMETRIC_SMOOTHING 0x08 +#define FT_GASP_SYMMETRIC_GRIDFIT 0x10 + + + /************************************************************************* + * + * @func: + * FT_Get_Gasp + * + * @description: + * Read the `gasp' table from a TrueType or OpenType font file and + * return the entry corresponding to a given character pixel size. + * + * @input: + * face :: The source face handle. + * ppem :: The vertical character pixel size. + * + * @return: + * Bit flags (see @FT_GASP_XXX), or @FT_GASP_NO_TABLE if there is no + * `gasp' table in the face. + * + * @since: + * 2.3.0 + */ + FT_EXPORT( FT_Int ) + FT_Get_Gasp( FT_Face face, + FT_UInt ppem ); + +/* */ + +#endif /* _FT_GASP_H_ */ + + +/* END */ diff --git a/include/freetype/ftglyph.h b/include/freetype/ftglyph.h new file mode 100644 index 0000000..3de69f7 --- /dev/null +++ b/include/freetype/ftglyph.h @@ -0,0 +1,620 @@ +/***************************************************************************/ +/* */ +/* ftglyph.h */ +/* */ +/* FreeType convenience functions to handle glyphs (specification). */ +/* */ +/* Copyright 1996-2003, 2006, 2008, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file contains the definition of several convenience functions */ + /* that can be used by client applications to easily retrieve glyph */ + /* bitmaps and outlines from a given face. */ + /* */ + /* These functions should be optional if you are writing a font server */ + /* or text layout engine on top of FreeType. However, they are pretty */ + /* handy for many other simple uses of the library. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTGLYPH_H__ +#define __FTGLYPH_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* glyph_management */ + /* */ + /* <Title> */ + /* Glyph Management */ + /* */ + /* <Abstract> */ + /* Generic interface to manage individual glyph data. */ + /* */ + /* <Description> */ + /* This section contains definitions used to manage glyph data */ + /* through generic FT_Glyph objects. Each of them can contain a */ + /* bitmap, a vector outline, or even images in other formats. */ + /* */ + /*************************************************************************/ + + + /* forward declaration to a private type */ + typedef struct FT_Glyph_Class_ FT_Glyph_Class; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Glyph */ + /* */ + /* <Description> */ + /* Handle to an object used to model generic glyph images. It is a */ + /* pointer to the @FT_GlyphRec structure and can contain a glyph */ + /* bitmap or pointer. */ + /* */ + /* <Note> */ + /* Glyph objects are not owned by the library. You must thus release */ + /* them manually (through @FT_Done_Glyph) _before_ calling */ + /* @FT_Done_FreeType. */ + /* */ + typedef struct FT_GlyphRec_* FT_Glyph; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_GlyphRec */ + /* */ + /* <Description> */ + /* The root glyph structure contains a given glyph image plus its */ + /* advance width in 16.16 fixed float format. */ + /* */ + /* <Fields> */ + /* library :: A handle to the FreeType library object. */ + /* */ + /* clazz :: A pointer to the glyph's class. Private. */ + /* */ + /* format :: The format of the glyph's image. */ + /* */ + /* advance :: A 16.16 vector that gives the glyph's advance width. */ + /* */ + typedef struct FT_GlyphRec_ + { + FT_Library library; + const FT_Glyph_Class* clazz; + FT_Glyph_Format format; + FT_Vector advance; + + } FT_GlyphRec; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_BitmapGlyph */ + /* */ + /* <Description> */ + /* A handle to an object used to model a bitmap glyph image. This is */ + /* a sub-class of @FT_Glyph, and a pointer to @FT_BitmapGlyphRec. */ + /* */ + typedef struct FT_BitmapGlyphRec_* FT_BitmapGlyph; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_BitmapGlyphRec */ + /* */ + /* <Description> */ + /* A structure used for bitmap glyph images. This really is a */ + /* `sub-class' of @FT_GlyphRec. */ + /* */ + /* <Fields> */ + /* root :: The root @FT_Glyph fields. */ + /* */ + /* left :: The left-side bearing, i.e., the horizontal distance */ + /* from the current pen position to the left border of the */ + /* glyph bitmap. */ + /* */ + /* top :: The top-side bearing, i.e., the vertical distance from */ + /* the current pen position to the top border of the glyph */ + /* bitmap. This distance is positive for upwards~y! */ + /* */ + /* bitmap :: A descriptor for the bitmap. */ + /* */ + /* <Note> */ + /* You can typecast an @FT_Glyph to @FT_BitmapGlyph if you have */ + /* `glyph->format == FT_GLYPH_FORMAT_BITMAP'. This lets you access */ + /* the bitmap's contents easily. */ + /* */ + /* The corresponding pixel buffer is always owned by @FT_BitmapGlyph */ + /* and is thus created and destroyed with it. */ + /* */ + typedef struct FT_BitmapGlyphRec_ + { + FT_GlyphRec root; + FT_Int left; + FT_Int top; + FT_Bitmap bitmap; + + } FT_BitmapGlyphRec; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_OutlineGlyph */ + /* */ + /* <Description> */ + /* A handle to an object used to model an outline glyph image. This */ + /* is a sub-class of @FT_Glyph, and a pointer to @FT_OutlineGlyphRec. */ + /* */ + typedef struct FT_OutlineGlyphRec_* FT_OutlineGlyph; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_OutlineGlyphRec */ + /* */ + /* <Description> */ + /* A structure used for outline (vectorial) glyph images. This */ + /* really is a `sub-class' of @FT_GlyphRec. */ + /* */ + /* <Fields> */ + /* root :: The root @FT_Glyph fields. */ + /* */ + /* outline :: A descriptor for the outline. */ + /* */ + /* <Note> */ + /* You can typecast an @FT_Glyph to @FT_OutlineGlyph if you have */ + /* `glyph->format == FT_GLYPH_FORMAT_OUTLINE'. This lets you access */ + /* the outline's content easily. */ + /* */ + /* As the outline is extracted from a glyph slot, its coordinates are */ + /* expressed normally in 26.6 pixels, unless the flag */ + /* @FT_LOAD_NO_SCALE was used in @FT_Load_Glyph() or @FT_Load_Char(). */ + /* */ + /* The outline's tables are always owned by the object and are */ + /* destroyed with it. */ + /* */ + typedef struct FT_OutlineGlyphRec_ + { + FT_GlyphRec root; + FT_Outline outline; + + } FT_OutlineGlyphRec; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Glyph */ + /* */ + /* <Description> */ + /* A function used to extract a glyph image from a slot. Note that */ + /* the created @FT_Glyph object must be released with @FT_Done_Glyph. */ + /* */ + /* <Input> */ + /* slot :: A handle to the source glyph slot. */ + /* */ + /* <Output> */ + /* aglyph :: A handle to the glyph object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Glyph( FT_GlyphSlot slot, + FT_Glyph *aglyph ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Glyph_Copy */ + /* */ + /* <Description> */ + /* A function used to copy a glyph image. Note that the created */ + /* @FT_Glyph object must be released with @FT_Done_Glyph. */ + /* */ + /* <Input> */ + /* source :: A handle to the source glyph object. */ + /* */ + /* <Output> */ + /* target :: A handle to the target glyph object. 0~in case of */ + /* error. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Glyph_Copy( FT_Glyph source, + FT_Glyph *target ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Glyph_Transform */ + /* */ + /* <Description> */ + /* Transform a glyph image if its format is scalable. */ + /* */ + /* <InOut> */ + /* glyph :: A handle to the target glyph object. */ + /* */ + /* <Input> */ + /* matrix :: A pointer to a 2x2 matrix to apply. */ + /* */ + /* delta :: A pointer to a 2d vector to apply. Coordinates are */ + /* expressed in 1/64th of a pixel. */ + /* */ + /* <Return> */ + /* FreeType error code (if not 0, the glyph format is not scalable). */ + /* */ + /* <Note> */ + /* The 2x2 transformation matrix is also applied to the glyph's */ + /* advance vector. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Glyph_Transform( FT_Glyph glyph, + FT_Matrix* matrix, + FT_Vector* delta ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Glyph_BBox_Mode */ + /* */ + /* <Description> */ + /* The mode how the values of @FT_Glyph_Get_CBox are returned. */ + /* */ + /* <Values> */ + /* FT_GLYPH_BBOX_UNSCALED :: */ + /* Return unscaled font units. */ + /* */ + /* FT_GLYPH_BBOX_SUBPIXELS :: */ + /* Return unfitted 26.6 coordinates. */ + /* */ + /* FT_GLYPH_BBOX_GRIDFIT :: */ + /* Return grid-fitted 26.6 coordinates. */ + /* */ + /* FT_GLYPH_BBOX_TRUNCATE :: */ + /* Return coordinates in integer pixels. */ + /* */ + /* FT_GLYPH_BBOX_PIXELS :: */ + /* Return grid-fitted pixel coordinates. */ + /* */ + typedef enum FT_Glyph_BBox_Mode_ + { + FT_GLYPH_BBOX_UNSCALED = 0, + FT_GLYPH_BBOX_SUBPIXELS = 0, + FT_GLYPH_BBOX_GRIDFIT = 1, + FT_GLYPH_BBOX_TRUNCATE = 2, + FT_GLYPH_BBOX_PIXELS = 3 + + } FT_Glyph_BBox_Mode; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* ft_glyph_bbox_xxx */ + /* */ + /* <Description> */ + /* These constants are deprecated. Use the corresponding */ + /* @FT_Glyph_BBox_Mode values instead. */ + /* */ + /* <Values> */ + /* ft_glyph_bbox_unscaled :: See @FT_GLYPH_BBOX_UNSCALED. */ + /* ft_glyph_bbox_subpixels :: See @FT_GLYPH_BBOX_SUBPIXELS. */ + /* ft_glyph_bbox_gridfit :: See @FT_GLYPH_BBOX_GRIDFIT. */ + /* ft_glyph_bbox_truncate :: See @FT_GLYPH_BBOX_TRUNCATE. */ + /* ft_glyph_bbox_pixels :: See @FT_GLYPH_BBOX_PIXELS. */ + /* */ +#define ft_glyph_bbox_unscaled FT_GLYPH_BBOX_UNSCALED +#define ft_glyph_bbox_subpixels FT_GLYPH_BBOX_SUBPIXELS +#define ft_glyph_bbox_gridfit FT_GLYPH_BBOX_GRIDFIT +#define ft_glyph_bbox_truncate FT_GLYPH_BBOX_TRUNCATE +#define ft_glyph_bbox_pixels FT_GLYPH_BBOX_PIXELS + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Glyph_Get_CBox */ + /* */ + /* <Description> */ + /* Return a glyph's `control box'. The control box encloses all the */ + /* outline's points, including Bézier control points. Though it */ + /* coincides with the exact bounding box for most glyphs, it can be */ + /* slightly larger in some situations (like when rotating an outline */ + /* which contains Bézier outside arcs). */ + /* */ + /* Computing the control box is very fast, while getting the bounding */ + /* box can take much more time as it needs to walk over all segments */ + /* and arcs in the outline. To get the latter, you can use the */ + /* `ftbbox' component which is dedicated to this single task. */ + /* */ + /* <Input> */ + /* glyph :: A handle to the source glyph object. */ + /* */ + /* mode :: The mode which indicates how to interpret the returned */ + /* bounding box values. */ + /* */ + /* <Output> */ + /* acbox :: The glyph coordinate bounding box. Coordinates are */ + /* expressed in 1/64th of pixels if it is grid-fitted. */ + /* */ + /* <Note> */ + /* Coordinates are relative to the glyph origin, using the y~upwards */ + /* convention. */ + /* */ + /* If the glyph has been loaded with @FT_LOAD_NO_SCALE, `bbox_mode' */ + /* must be set to @FT_GLYPH_BBOX_UNSCALED to get unscaled font */ + /* units in 26.6 pixel format. The value @FT_GLYPH_BBOX_SUBPIXELS */ + /* is another name for this constant. */ + /* */ + /* If the font is tricky and the glyph has been loaded with */ + /* @FT_LOAD_NO_SCALE, the resulting CBox is meaningless. To get */ + /* reasonable values for the CBox it is necessary to load the glyph */ + /* at a large ppem value (so that the hinting instructions can */ + /* properly shift and scale the subglyphs), then extracting the CBox */ + /* which can be eventually converted back to font units. */ + /* */ + /* Note that the maximum coordinates are exclusive, which means that */ + /* one can compute the width and height of the glyph image (be it in */ + /* integer or 26.6 pixels) as: */ + /* */ + /* { */ + /* width = bbox.xMax - bbox.xMin; */ + /* height = bbox.yMax - bbox.yMin; */ + /* } */ + /* */ + /* Note also that for 26.6 coordinates, if `bbox_mode' is set to */ + /* @FT_GLYPH_BBOX_GRIDFIT, the coordinates will also be grid-fitted, */ + /* which corresponds to: */ + /* */ + /* { */ + /* bbox.xMin = FLOOR(bbox.xMin); */ + /* bbox.yMin = FLOOR(bbox.yMin); */ + /* bbox.xMax = CEILING(bbox.xMax); */ + /* bbox.yMax = CEILING(bbox.yMax); */ + /* } */ + /* */ + /* To get the bbox in pixel coordinates, set `bbox_mode' to */ + /* @FT_GLYPH_BBOX_TRUNCATE. */ + /* */ + /* To get the bbox in grid-fitted pixel coordinates, set `bbox_mode' */ + /* to @FT_GLYPH_BBOX_PIXELS. */ + /* */ + FT_EXPORT( void ) + FT_Glyph_Get_CBox( FT_Glyph glyph, + FT_UInt bbox_mode, + FT_BBox *acbox ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Glyph_To_Bitmap */ + /* */ + /* <Description> */ + /* Convert a given glyph object to a bitmap glyph object. */ + /* */ + /* <InOut> */ + /* the_glyph :: A pointer to a handle to the target glyph. */ + /* */ + /* <Input> */ + /* render_mode :: An enumeration that describes how the data is */ + /* rendered. */ + /* */ + /* origin :: A pointer to a vector used to translate the glyph */ + /* image before rendering. Can be~0 (if no */ + /* translation). The origin is expressed in */ + /* 26.6 pixels. */ + /* */ + /* destroy :: A boolean that indicates that the original glyph */ + /* image should be destroyed by this function. It is */ + /* never destroyed in case of error. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* This function does nothing if the glyph format isn't scalable. */ + /* */ + /* The glyph image is translated with the `origin' vector before */ + /* rendering. */ + /* */ + /* The first parameter is a pointer to an @FT_Glyph handle, that will */ + /* be _replaced_ by this function (with newly allocated data). */ + /* Typically, you would use (omitting error handling): */ + /* */ + /* */ + /* { */ + /* FT_Glyph glyph; */ + /* FT_BitmapGlyph glyph_bitmap; */ + /* */ + /* */ + /* // load glyph */ + /* error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAUT ); */ + /* */ + /* // extract glyph image */ + /* error = FT_Get_Glyph( face->glyph, &glyph ); */ + /* */ + /* // convert to a bitmap (default render mode + destroying old) */ + /* if ( glyph->format != FT_GLYPH_FORMAT_BITMAP ) */ + /* { */ + /* error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL, */ + /* 0, 1 ); */ + /* if ( error ) // `glyph' unchanged */ + /* ... */ + /* } */ + /* */ + /* // access bitmap content by typecasting */ + /* glyph_bitmap = (FT_BitmapGlyph)glyph; */ + /* */ + /* // do funny stuff with it, like blitting/drawing */ + /* ... */ + /* */ + /* // discard glyph image (bitmap or not) */ + /* FT_Done_Glyph( glyph ); */ + /* } */ + /* */ + /* */ + /* Here another example, again without error handling: */ + /* */ + /* */ + /* { */ + /* FT_Glyph glyphs[MAX_GLYPHS] */ + /* */ + /* */ + /* ... */ + /* */ + /* for ( idx = 0; i < MAX_GLYPHS; i++ ) */ + /* error = FT_Load_Glyph( face, idx, FT_LOAD_DEFAULT ) || */ + /* FT_Get_Glyph ( face->glyph, &glyph[idx] ); */ + /* */ + /* ... */ + /* */ + /* for ( idx = 0; i < MAX_GLYPHS; i++ ) */ + /* { */ + /* FT_Glyph bitmap = glyphs[idx]; */ + /* */ + /* */ + /* ... */ + /* */ + /* // after this call, `bitmap' no longer points into */ + /* // the `glyphs' array (and the old value isn't destroyed) */ + /* FT_Glyph_To_Bitmap( &bitmap, FT_RENDER_MODE_MONO, 0, 0 ); */ + /* */ + /* ... */ + /* */ + /* FT_Done_Glyph( bitmap ); */ + /* } */ + /* */ + /* ... */ + /* */ + /* for ( idx = 0; i < MAX_GLYPHS; i++ ) */ + /* FT_Done_Glyph( glyphs[idx] ); */ + /* } */ + /* */ + FT_EXPORT( FT_Error ) + FT_Glyph_To_Bitmap( FT_Glyph* the_glyph, + FT_Render_Mode render_mode, + FT_Vector* origin, + FT_Bool destroy ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_Glyph */ + /* */ + /* <Description> */ + /* Destroy a given glyph. */ + /* */ + /* <Input> */ + /* glyph :: A handle to the target glyph object. */ + /* */ + FT_EXPORT( void ) + FT_Done_Glyph( FT_Glyph glyph ); + + /* */ + + + /* other helpful functions */ + + /*************************************************************************/ + /* */ + /* <Section> */ + /* computations */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Matrix_Multiply */ + /* */ + /* <Description> */ + /* Perform the matrix operation `b = a*b'. */ + /* */ + /* <Input> */ + /* a :: A pointer to matrix `a'. */ + /* */ + /* <InOut> */ + /* b :: A pointer to matrix `b'. */ + /* */ + /* <Note> */ + /* The result is undefined if either `a' or `b' is zero. */ + /* */ + FT_EXPORT( void ) + FT_Matrix_Multiply( const FT_Matrix* a, + FT_Matrix* b ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Matrix_Invert */ + /* */ + /* <Description> */ + /* Invert a 2x2 matrix. Return an error if it can't be inverted. */ + /* */ + /* <InOut> */ + /* matrix :: A pointer to the target matrix. Remains untouched in */ + /* case of error. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Matrix_Invert( FT_Matrix* matrix ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTGLYPH_H__ */ + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/include/freetype/ftgxval.h b/include/freetype/ftgxval.h new file mode 100644 index 0000000..497015c --- /dev/null +++ b/include/freetype/ftgxval.h @@ -0,0 +1,358 @@ +/***************************************************************************/ +/* */ +/* ftgxval.h */ +/* */ +/* FreeType API for validating TrueTypeGX/AAT tables (specification). */ +/* */ +/* Copyright 2004, 2005, 2006 by */ +/* Masatake YAMATO, Redhat K.K, */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTGXVAL_H__ +#define __FTGXVAL_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* gx_validation */ + /* */ + /* <Title> */ + /* TrueTypeGX/AAT Validation */ + /* */ + /* <Abstract> */ + /* An API to validate TrueTypeGX/AAT tables. */ + /* */ + /* <Description> */ + /* This section contains the declaration of functions to validate */ + /* some TrueTypeGX tables (feat, mort, morx, bsln, just, kern, opbd, */ + /* trak, prop, lcar). */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* Warning: Use FT_VALIDATE_XXX to validate a table. */ + /* Following definitions are for gxvalid developers. */ + /* */ + /* */ + /*************************************************************************/ + +#define FT_VALIDATE_feat_INDEX 0 +#define FT_VALIDATE_mort_INDEX 1 +#define FT_VALIDATE_morx_INDEX 2 +#define FT_VALIDATE_bsln_INDEX 3 +#define FT_VALIDATE_just_INDEX 4 +#define FT_VALIDATE_kern_INDEX 5 +#define FT_VALIDATE_opbd_INDEX 6 +#define FT_VALIDATE_trak_INDEX 7 +#define FT_VALIDATE_prop_INDEX 8 +#define FT_VALIDATE_lcar_INDEX 9 +#define FT_VALIDATE_GX_LAST_INDEX FT_VALIDATE_lcar_INDEX + + + /************************************************************************* + * + * @macro: + * FT_VALIDATE_GX_LENGTH + * + * @description: + * The number of tables checked in this module. Use it as a parameter + * for the `table-length' argument of function @FT_TrueTypeGX_Validate. + */ +#define FT_VALIDATE_GX_LENGTH (FT_VALIDATE_GX_LAST_INDEX + 1) + + /* */ + + /* Up to 0x1000 is used by otvalid. + Ox2xxx is reserved for feature OT extension. */ +#define FT_VALIDATE_GX_START 0x4000 +#define FT_VALIDATE_GX_BITFIELD( tag ) \ + ( FT_VALIDATE_GX_START << FT_VALIDATE_##tag##_INDEX ) + + + /********************************************************************** + * + * @enum: + * FT_VALIDATE_GXXXX + * + * @description: + * A list of bit-field constants used with @FT_TrueTypeGX_Validate to + * indicate which TrueTypeGX/AAT Type tables should be validated. + * + * @values: + * FT_VALIDATE_feat :: + * Validate `feat' table. + * + * FT_VALIDATE_mort :: + * Validate `mort' table. + * + * FT_VALIDATE_morx :: + * Validate `morx' table. + * + * FT_VALIDATE_bsln :: + * Validate `bsln' table. + * + * FT_VALIDATE_just :: + * Validate `just' table. + * + * FT_VALIDATE_kern :: + * Validate `kern' table. + * + * FT_VALIDATE_opbd :: + * Validate `opbd' table. + * + * FT_VALIDATE_trak :: + * Validate `trak' table. + * + * FT_VALIDATE_prop :: + * Validate `prop' table. + * + * FT_VALIDATE_lcar :: + * Validate `lcar' table. + * + * FT_VALIDATE_GX :: + * Validate all TrueTypeGX tables (feat, mort, morx, bsln, just, kern, + * opbd, trak, prop and lcar). + * + */ + +#define FT_VALIDATE_feat FT_VALIDATE_GX_BITFIELD( feat ) +#define FT_VALIDATE_mort FT_VALIDATE_GX_BITFIELD( mort ) +#define FT_VALIDATE_morx FT_VALIDATE_GX_BITFIELD( morx ) +#define FT_VALIDATE_bsln FT_VALIDATE_GX_BITFIELD( bsln ) +#define FT_VALIDATE_just FT_VALIDATE_GX_BITFIELD( just ) +#define FT_VALIDATE_kern FT_VALIDATE_GX_BITFIELD( kern ) +#define FT_VALIDATE_opbd FT_VALIDATE_GX_BITFIELD( opbd ) +#define FT_VALIDATE_trak FT_VALIDATE_GX_BITFIELD( trak ) +#define FT_VALIDATE_prop FT_VALIDATE_GX_BITFIELD( prop ) +#define FT_VALIDATE_lcar FT_VALIDATE_GX_BITFIELD( lcar ) + +#define FT_VALIDATE_GX ( FT_VALIDATE_feat | \ + FT_VALIDATE_mort | \ + FT_VALIDATE_morx | \ + FT_VALIDATE_bsln | \ + FT_VALIDATE_just | \ + FT_VALIDATE_kern | \ + FT_VALIDATE_opbd | \ + FT_VALIDATE_trak | \ + FT_VALIDATE_prop | \ + FT_VALIDATE_lcar ) + + + /* */ + + /********************************************************************** + * + * @function: + * FT_TrueTypeGX_Validate + * + * @description: + * Validate various TrueTypeGX tables to assure that all offsets and + * indices are valid. The idea is that a higher-level library which + * actually does the text layout can access those tables without + * error checking (which can be quite time consuming). + * + * @input: + * face :: + * A handle to the input face. + * + * validation_flags :: + * A bit field which specifies the tables to be validated. See + * @FT_VALIDATE_GXXXX for possible values. + * + * table_length :: + * The size of the `tables' array. Normally, @FT_VALIDATE_GX_LENGTH + * should be passed. + * + * @output: + * tables :: + * The array where all validated sfnt tables are stored. + * The array itself must be allocated by a client. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with TrueTypeGX fonts, returning an error + * otherwise. + * + * After use, the application should deallocate the buffers pointed to by + * each `tables' element, by calling @FT_TrueTypeGX_Free. A NULL value + * indicates that the table either doesn't exist in the font, the + * application hasn't asked for validation, or the validator doesn't have + * the ability to validate the sfnt table. + */ + FT_EXPORT( FT_Error ) + FT_TrueTypeGX_Validate( FT_Face face, + FT_UInt validation_flags, + FT_Bytes tables[FT_VALIDATE_GX_LENGTH], + FT_UInt table_length ); + + + /* */ + + /********************************************************************** + * + * @function: + * FT_TrueTypeGX_Free + * + * @description: + * Free the buffer allocated by TrueTypeGX validator. + * + * @input: + * face :: + * A handle to the input face. + * + * table :: + * The pointer to the buffer allocated by + * @FT_TrueTypeGX_Validate. + * + * @note: + * This function must be used to free the buffer allocated by + * @FT_TrueTypeGX_Validate only. + */ + FT_EXPORT( void ) + FT_TrueTypeGX_Free( FT_Face face, + FT_Bytes table ); + + + /* */ + + /********************************************************************** + * + * @enum: + * FT_VALIDATE_CKERNXXX + * + * @description: + * A list of bit-field constants used with @FT_ClassicKern_Validate + * to indicate the classic kern dialect or dialects. If the selected + * type doesn't fit, @FT_ClassicKern_Validate regards the table as + * invalid. + * + * @values: + * FT_VALIDATE_MS :: + * Handle the `kern' table as a classic Microsoft kern table. + * + * FT_VALIDATE_APPLE :: + * Handle the `kern' table as a classic Apple kern table. + * + * FT_VALIDATE_CKERN :: + * Handle the `kern' as either classic Apple or Microsoft kern table. + */ +#define FT_VALIDATE_MS ( FT_VALIDATE_GX_START << 0 ) +#define FT_VALIDATE_APPLE ( FT_VALIDATE_GX_START << 1 ) + +#define FT_VALIDATE_CKERN ( FT_VALIDATE_MS | FT_VALIDATE_APPLE ) + + + /* */ + + /********************************************************************** + * + * @function: + * FT_ClassicKern_Validate + * + * @description: + * Validate classic (16-bit format) kern table to assure that the offsets + * and indices are valid. The idea is that a higher-level library which + * actually does the text layout can access those tables without error + * checking (which can be quite time consuming). + * + * The `kern' table validator in @FT_TrueTypeGX_Validate deals with both + * the new 32-bit format and the classic 16-bit format, while + * FT_ClassicKern_Validate only supports the classic 16-bit format. + * + * @input: + * face :: + * A handle to the input face. + * + * validation_flags :: + * A bit field which specifies the dialect to be validated. See + * @FT_VALIDATE_CKERNXXX for possible values. + * + * @output: + * ckern_table :: + * A pointer to the kern table. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * After use, the application should deallocate the buffers pointed to by + * `ckern_table', by calling @FT_ClassicKern_Free. A NULL value + * indicates that the table doesn't exist in the font. + */ + FT_EXPORT( FT_Error ) + FT_ClassicKern_Validate( FT_Face face, + FT_UInt validation_flags, + FT_Bytes *ckern_table ); + + + /* */ + + /********************************************************************** + * + * @function: + * FT_ClassicKern_Free + * + * @description: + * Free the buffer allocated by classic Kern validator. + * + * @input: + * face :: + * A handle to the input face. + * + * table :: + * The pointer to the buffer that is allocated by + * @FT_ClassicKern_Validate. + * + * @note: + * This function must be used to free the buffer allocated by + * @FT_ClassicKern_Validate only. + */ + FT_EXPORT( void ) + FT_ClassicKern_Free( FT_Face face, + FT_Bytes table ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTGXVAL_H__ */ + + +/* END */ diff --git a/include/freetype/ftgzip.h b/include/freetype/ftgzip.h new file mode 100644 index 0000000..acbc4f0 --- /dev/null +++ b/include/freetype/ftgzip.h @@ -0,0 +1,102 @@ +/***************************************************************************/ +/* */ +/* ftgzip.h */ +/* */ +/* Gzip-compressed stream support. */ +/* */ +/* Copyright 2002, 2003, 2004, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTGZIP_H__ +#define __FTGZIP_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /* */ + /* <Section> */ + /* gzip */ + /* */ + /* <Title> */ + /* GZIP Streams */ + /* */ + /* <Abstract> */ + /* Using gzip-compressed font files. */ + /* */ + /* <Description> */ + /* This section contains the declaration of Gzip-specific functions. */ + /* */ + /*************************************************************************/ + + + /************************************************************************ + * + * @function: + * FT_Stream_OpenGzip + * + * @description: + * Open a new stream to parse gzip-compressed font files. This is + * mainly used to support the compressed `*.pcf.gz' fonts that come + * with XFree86. + * + * @input: + * stream :: + * The target embedding stream. + * + * source :: + * The source stream. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The source stream must be opened _before_ calling this function. + * + * Calling the internal function `FT_Stream_Close' on the new stream will + * *not* call `FT_Stream_Close' on the source stream. None of the stream + * objects will be released to the heap. + * + * The stream implementation is very basic and resets the decompression + * process each time seeking backwards is needed within the stream. + * + * In certain builds of the library, gzip compression recognition is + * automatically handled when calling @FT_New_Face or @FT_Open_Face. + * This means that if no font driver is capable of handling the raw + * compressed file, the library will try to open a gzipped stream from + * it and re-open the face with it. + * + * This function may return `FT_Err_Unimplemented_Feature' if your build + * of FreeType was not compiled with zlib support. + */ + FT_EXPORT( FT_Error ) + FT_Stream_OpenGzip( FT_Stream stream, + FT_Stream source ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTGZIP_H__ */ + + +/* END */ diff --git a/include/freetype/ftimage.h b/include/freetype/ftimage.h new file mode 100644 index 0000000..04b5e04 --- /dev/null +++ b/include/freetype/ftimage.h @@ -0,0 +1,1313 @@ +/***************************************************************************/ +/* */ +/* ftimage.h */ +/* */ +/* FreeType glyph image formats and default raster interface */ +/* (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ +/* 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* Note: A `raster' is simply a scan-line converter, used to render */ + /* FT_Outlines into FT_Bitmaps. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTIMAGE_H__ +#define __FTIMAGE_H__ + + + /* _STANDALONE_ is from ftgrays.c */ +#ifndef _STANDALONE_ +#include <ft2build.h> +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* basic_types */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Pos */ + /* */ + /* <Description> */ + /* The type FT_Pos is used to store vectorial coordinates. Depending */ + /* on the context, these can represent distances in integer font */ + /* units, or 16.16, or 26.6 fixed float pixel coordinates. */ + /* */ + typedef signed long FT_Pos; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Vector */ + /* */ + /* <Description> */ + /* A simple structure used to store a 2D vector; coordinates are of */ + /* the FT_Pos type. */ + /* */ + /* <Fields> */ + /* x :: The horizontal coordinate. */ + /* y :: The vertical coordinate. */ + /* */ + typedef struct FT_Vector_ + { + FT_Pos x; + FT_Pos y; + + } FT_Vector; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_BBox */ + /* */ + /* <Description> */ + /* A structure used to hold an outline's bounding box, i.e., the */ + /* coordinates of its extrema in the horizontal and vertical */ + /* directions. */ + /* */ + /* <Fields> */ + /* xMin :: The horizontal minimum (left-most). */ + /* */ + /* yMin :: The vertical minimum (bottom-most). */ + /* */ + /* xMax :: The horizontal maximum (right-most). */ + /* */ + /* yMax :: The vertical maximum (top-most). */ + /* */ + /* <Note> */ + /* The bounding box is specified with the coordinates of the lower */ + /* left and the upper right corner. In PostScript, those values are */ + /* often called (llx,lly) and (urx,ury), respectively. */ + /* */ + /* If `yMin' is negative, this value gives the glyph's descender. */ + /* Otherwise, the glyph doesn't descend below the baseline. */ + /* Similarly, if `ymax' is positive, this value gives the glyph's */ + /* ascender. */ + /* */ + /* `xMin' gives the horizontal distance from the glyph's origin to */ + /* the left edge of the glyph's bounding box. If `xMin' is negative, */ + /* the glyph extends to the left of the origin. */ + /* */ + typedef struct FT_BBox_ + { + FT_Pos xMin, yMin; + FT_Pos xMax, yMax; + + } FT_BBox; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Pixel_Mode */ + /* */ + /* <Description> */ + /* An enumeration type used to describe the format of pixels in a */ + /* given bitmap. Note that additional formats may be added in the */ + /* future. */ + /* */ + /* <Values> */ + /* FT_PIXEL_MODE_NONE :: */ + /* Value~0 is reserved. */ + /* */ + /* FT_PIXEL_MODE_MONO :: */ + /* A monochrome bitmap, using 1~bit per pixel. Note that pixels */ + /* are stored in most-significant order (MSB), which means that */ + /* the left-most pixel in a byte has value 128. */ + /* */ + /* FT_PIXEL_MODE_GRAY :: */ + /* An 8-bit bitmap, generally used to represent anti-aliased glyph */ + /* images. Each pixel is stored in one byte. Note that the number */ + /* of `gray' levels is stored in the `num_grays' field of the */ + /* @FT_Bitmap structure (it generally is 256). */ + /* */ + /* FT_PIXEL_MODE_GRAY2 :: */ + /* A 2-bit per pixel bitmap, used to represent embedded */ + /* anti-aliased bitmaps in font files according to the OpenType */ + /* specification. We haven't found a single font using this */ + /* format, however. */ + /* */ + /* FT_PIXEL_MODE_GRAY4 :: */ + /* A 4-bit per pixel bitmap, representing embedded anti-aliased */ + /* bitmaps in font files according to the OpenType specification. */ + /* We haven't found a single font using this format, however. */ + /* */ + /* FT_PIXEL_MODE_LCD :: */ + /* An 8-bit bitmap, representing RGB or BGR decimated glyph images */ + /* used for display on LCD displays; the bitmap is three times */ + /* wider than the original glyph image. See also */ + /* @FT_RENDER_MODE_LCD. */ + /* */ + /* FT_PIXEL_MODE_LCD_V :: */ + /* An 8-bit bitmap, representing RGB or BGR decimated glyph images */ + /* used for display on rotated LCD displays; the bitmap is three */ + /* times taller than the original glyph image. See also */ + /* @FT_RENDER_MODE_LCD_V. */ + /* */ + typedef enum FT_Pixel_Mode_ + { + FT_PIXEL_MODE_NONE = 0, + FT_PIXEL_MODE_MONO, + FT_PIXEL_MODE_GRAY, + FT_PIXEL_MODE_GRAY2, + FT_PIXEL_MODE_GRAY4, + FT_PIXEL_MODE_LCD, + FT_PIXEL_MODE_LCD_V, + + FT_PIXEL_MODE_MAX /* do not remove */ + + } FT_Pixel_Mode; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* ft_pixel_mode_xxx */ + /* */ + /* <Description> */ + /* A list of deprecated constants. Use the corresponding */ + /* @FT_Pixel_Mode values instead. */ + /* */ + /* <Values> */ + /* ft_pixel_mode_none :: See @FT_PIXEL_MODE_NONE. */ + /* ft_pixel_mode_mono :: See @FT_PIXEL_MODE_MONO. */ + /* ft_pixel_mode_grays :: See @FT_PIXEL_MODE_GRAY. */ + /* ft_pixel_mode_pal2 :: See @FT_PIXEL_MODE_GRAY2. */ + /* ft_pixel_mode_pal4 :: See @FT_PIXEL_MODE_GRAY4. */ + /* */ +#define ft_pixel_mode_none FT_PIXEL_MODE_NONE +#define ft_pixel_mode_mono FT_PIXEL_MODE_MONO +#define ft_pixel_mode_grays FT_PIXEL_MODE_GRAY +#define ft_pixel_mode_pal2 FT_PIXEL_MODE_GRAY2 +#define ft_pixel_mode_pal4 FT_PIXEL_MODE_GRAY4 + + /* */ + +#if 0 + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Palette_Mode */ + /* */ + /* <Description> */ + /* THIS TYPE IS DEPRECATED. DO NOT USE IT! */ + /* */ + /* An enumeration type to describe the format of a bitmap palette, */ + /* used with ft_pixel_mode_pal4 and ft_pixel_mode_pal8. */ + /* */ + /* <Values> */ + /* ft_palette_mode_rgb :: The palette is an array of 3-byte RGB */ + /* records. */ + /* */ + /* ft_palette_mode_rgba :: The palette is an array of 4-byte RGBA */ + /* records. */ + /* */ + /* <Note> */ + /* As ft_pixel_mode_pal2, pal4 and pal8 are currently unused by */ + /* FreeType, these types are not handled by the library itself. */ + /* */ + typedef enum FT_Palette_Mode_ + { + ft_palette_mode_rgb = 0, + ft_palette_mode_rgba, + + ft_palette_mode_max /* do not remove */ + + } FT_Palette_Mode; + + /* */ + +#endif + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Bitmap */ + /* */ + /* <Description> */ + /* A structure used to describe a bitmap or pixmap to the raster. */ + /* Note that we now manage pixmaps of various depths through the */ + /* `pixel_mode' field. */ + /* */ + /* <Fields> */ + /* rows :: The number of bitmap rows. */ + /* */ + /* width :: The number of pixels in bitmap row. */ + /* */ + /* pitch :: The pitch's absolute value is the number of bytes */ + /* taken by one bitmap row, including padding. */ + /* However, the pitch is positive when the bitmap has */ + /* a `down' flow, and negative when it has an `up' */ + /* flow. In all cases, the pitch is an offset to add */ + /* to a bitmap pointer in order to go down one row. */ + /* */ + /* Note that `padding' means the alignment of a */ + /* bitmap to a byte border, and FreeType functions */ + /* normally align to the smallest possible integer */ + /* value. */ + /* */ + /* For the B/W rasterizer, `pitch' is always an even */ + /* number. */ + /* */ + /* To change the pitch of a bitmap (say, to make it a */ + /* multiple of 4), use @FT_Bitmap_Convert. */ + /* Alternatively, you might use callback functions to */ + /* directly render to the application's surface; see */ + /* the file `example2.cpp' in the tutorial for a */ + /* demonstration. */ + /* */ + /* buffer :: A typeless pointer to the bitmap buffer. This */ + /* value should be aligned on 32-bit boundaries in */ + /* most cases. */ + /* */ + /* num_grays :: This field is only used with */ + /* @FT_PIXEL_MODE_GRAY; it gives the number of gray */ + /* levels used in the bitmap. */ + /* */ + /* pixel_mode :: The pixel mode, i.e., how pixel bits are stored. */ + /* See @FT_Pixel_Mode for possible values. */ + /* */ + /* palette_mode :: This field is intended for paletted pixel modes; */ + /* it indicates how the palette is stored. Not */ + /* used currently. */ + /* */ + /* palette :: A typeless pointer to the bitmap palette; this */ + /* field is intended for paletted pixel modes. Not */ + /* used currently. */ + /* */ + /* <Note> */ + /* For now, the only pixel modes supported by FreeType are mono and */ + /* grays. However, drivers might be added in the future to support */ + /* more `colorful' options. */ + /* */ + typedef struct FT_Bitmap_ + { + int rows; + int width; + int pitch; + unsigned char* buffer; + short num_grays; + char pixel_mode; + char palette_mode; + void* palette; + + } FT_Bitmap; + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* outline_processing */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Outline */ + /* */ + /* <Description> */ + /* This structure is used to describe an outline to the scan-line */ + /* converter. */ + /* */ + /* <Fields> */ + /* n_contours :: The number of contours in the outline. */ + /* */ + /* n_points :: The number of points in the outline. */ + /* */ + /* points :: A pointer to an array of `n_points' @FT_Vector */ + /* elements, giving the outline's point coordinates. */ + /* */ + /* tags :: A pointer to an array of `n_points' chars, giving */ + /* each outline point's type. */ + /* */ + /* If bit~0 is unset, the point is `off' the curve, */ + /* i.e., a Bézier control point, while it is `on' if */ + /* set. */ + /* */ + /* Bit~1 is meaningful for `off' points only. If set, */ + /* it indicates a third-order Bézier arc control point; */ + /* and a second-order control point if unset. */ + /* */ + /* If bit~2 is set, bits 5-7 contain the drop-out mode */ + /* (as defined in the OpenType specification; the value */ + /* is the same as the argument to the SCANMODE */ + /* instruction). */ + /* */ + /* Bits 3 and~4 are reserved for internal purposes. */ + /* */ + /* contours :: An array of `n_contours' shorts, giving the end */ + /* point of each contour within the outline. For */ + /* example, the first contour is defined by the points */ + /* `0' to `contours[0]', the second one is defined by */ + /* the points `contours[0]+1' to `contours[1]', etc. */ + /* */ + /* flags :: A set of bit flags used to characterize the outline */ + /* and give hints to the scan-converter and hinter on */ + /* how to convert/grid-fit it. See @FT_OUTLINE_FLAGS. */ + /* */ + /* <Note> */ + /* The B/W rasterizer only checks bit~2 in the `tags' array for the */ + /* first point of each contour. The drop-out mode as given with */ + /* @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, and */ + /* @FT_OUTLINE_INCLUDE_STUBS in `flags' is then overridden. */ + /* */ + typedef struct FT_Outline_ + { + short n_contours; /* number of contours in glyph */ + short n_points; /* number of points in the glyph */ + + FT_Vector* points; /* the outline's points */ + char* tags; /* the points flags */ + short* contours; /* the contour end points */ + + int flags; /* outline masks */ + + } FT_Outline; + + /* Following limits must be consistent with */ + /* FT_Outline.{n_contours,n_points} */ +#define FT_OUTLINE_CONTOURS_MAX SHRT_MAX +#define FT_OUTLINE_POINTS_MAX SHRT_MAX + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_OUTLINE_FLAGS */ + /* */ + /* <Description> */ + /* A list of bit-field constants use for the flags in an outline's */ + /* `flags' field. */ + /* */ + /* <Values> */ + /* FT_OUTLINE_NONE :: */ + /* Value~0 is reserved. */ + /* */ + /* FT_OUTLINE_OWNER :: */ + /* If set, this flag indicates that the outline's field arrays */ + /* (i.e., `points', `flags', and `contours') are `owned' by the */ + /* outline object, and should thus be freed when it is destroyed. */ + /* */ + /* FT_OUTLINE_EVEN_ODD_FILL :: */ + /* By default, outlines are filled using the non-zero winding rule. */ + /* If set to 1, the outline will be filled using the even-odd fill */ + /* rule (only works with the smooth rasterizer). */ + /* */ + /* FT_OUTLINE_REVERSE_FILL :: */ + /* By default, outside contours of an outline are oriented in */ + /* clock-wise direction, as defined in the TrueType specification. */ + /* This flag is set if the outline uses the opposite direction */ + /* (typically for Type~1 fonts). This flag is ignored by the scan */ + /* converter. */ + /* */ + /* FT_OUTLINE_IGNORE_DROPOUTS :: */ + /* By default, the scan converter will try to detect drop-outs in */ + /* an outline and correct the glyph bitmap to ensure consistent */ + /* shape continuity. If set, this flag hints the scan-line */ + /* converter to ignore such cases. See below for more information. */ + /* */ + /* FT_OUTLINE_SMART_DROPOUTS :: */ + /* Select smart dropout control. If unset, use simple dropout */ + /* control. Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set. See */ + /* below for more information. */ + /* */ + /* FT_OUTLINE_INCLUDE_STUBS :: */ + /* If set, turn pixels on for `stubs', otherwise exclude them. */ + /* Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set. See below for */ + /* more information. */ + /* */ + /* FT_OUTLINE_HIGH_PRECISION :: */ + /* This flag indicates that the scan-line converter should try to */ + /* convert this outline to bitmaps with the highest possible */ + /* quality. It is typically set for small character sizes. Note */ + /* that this is only a hint that might be completely ignored by a */ + /* given scan-converter. */ + /* */ + /* FT_OUTLINE_SINGLE_PASS :: */ + /* This flag is set to force a given scan-converter to only use a */ + /* single pass over the outline to render a bitmap glyph image. */ + /* Normally, it is set for very large character sizes. It is only */ + /* a hint that might be completely ignored by a given */ + /* scan-converter. */ + /* */ + /* <Note> */ + /* The flags @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, */ + /* and @FT_OUTLINE_INCLUDE_STUBS are ignored by the smooth */ + /* rasterizer. */ + /* */ + /* There exists a second mechanism to pass the drop-out mode to the */ + /* B/W rasterizer; see the `tags' field in @FT_Outline. */ + /* */ + /* Please refer to the description of the `SCANTYPE' instruction in */ + /* the OpenType specification (in file `ttinst1.doc') how simple */ + /* drop-outs, smart drop-outs, and stubs are defined. */ + /* */ +#define FT_OUTLINE_NONE 0x0 +#define FT_OUTLINE_OWNER 0x1 +#define FT_OUTLINE_EVEN_ODD_FILL 0x2 +#define FT_OUTLINE_REVERSE_FILL 0x4 +#define FT_OUTLINE_IGNORE_DROPOUTS 0x8 +#define FT_OUTLINE_SMART_DROPOUTS 0x10 +#define FT_OUTLINE_INCLUDE_STUBS 0x20 + +#define FT_OUTLINE_HIGH_PRECISION 0x100 +#define FT_OUTLINE_SINGLE_PASS 0x200 + + + /************************************************************************* + * + * @enum: + * ft_outline_flags + * + * @description: + * These constants are deprecated. Please use the corresponding + * @FT_OUTLINE_FLAGS values. + * + * @values: + * ft_outline_none :: See @FT_OUTLINE_NONE. + * ft_outline_owner :: See @FT_OUTLINE_OWNER. + * ft_outline_even_odd_fill :: See @FT_OUTLINE_EVEN_ODD_FILL. + * ft_outline_reverse_fill :: See @FT_OUTLINE_REVERSE_FILL. + * ft_outline_ignore_dropouts :: See @FT_OUTLINE_IGNORE_DROPOUTS. + * ft_outline_high_precision :: See @FT_OUTLINE_HIGH_PRECISION. + * ft_outline_single_pass :: See @FT_OUTLINE_SINGLE_PASS. + */ +#define ft_outline_none FT_OUTLINE_NONE +#define ft_outline_owner FT_OUTLINE_OWNER +#define ft_outline_even_odd_fill FT_OUTLINE_EVEN_ODD_FILL +#define ft_outline_reverse_fill FT_OUTLINE_REVERSE_FILL +#define ft_outline_ignore_dropouts FT_OUTLINE_IGNORE_DROPOUTS +#define ft_outline_high_precision FT_OUTLINE_HIGH_PRECISION +#define ft_outline_single_pass FT_OUTLINE_SINGLE_PASS + + /* */ + +#define FT_CURVE_TAG( flag ) ( flag & 3 ) + +#define FT_CURVE_TAG_ON 1 +#define FT_CURVE_TAG_CONIC 0 +#define FT_CURVE_TAG_CUBIC 2 + +#define FT_CURVE_TAG_HAS_SCANMODE 4 + +#define FT_CURVE_TAG_TOUCH_X 8 /* reserved for the TrueType hinter */ +#define FT_CURVE_TAG_TOUCH_Y 16 /* reserved for the TrueType hinter */ + +#define FT_CURVE_TAG_TOUCH_BOTH ( FT_CURVE_TAG_TOUCH_X | \ + FT_CURVE_TAG_TOUCH_Y ) + +#define FT_Curve_Tag_On FT_CURVE_TAG_ON +#define FT_Curve_Tag_Conic FT_CURVE_TAG_CONIC +#define FT_Curve_Tag_Cubic FT_CURVE_TAG_CUBIC +#define FT_Curve_Tag_Touch_X FT_CURVE_TAG_TOUCH_X +#define FT_Curve_Tag_Touch_Y FT_CURVE_TAG_TOUCH_Y + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Outline_MoveToFunc */ + /* */ + /* <Description> */ + /* A function pointer type used to describe the signature of a `move */ + /* to' function during outline walking/decomposition. */ + /* */ + /* A `move to' is emitted to start a new contour in an outline. */ + /* */ + /* <Input> */ + /* to :: A pointer to the target point of the `move to'. */ + /* */ + /* user :: A typeless pointer which is passed from the caller of the */ + /* decomposition function. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + typedef int + (*FT_Outline_MoveToFunc)( const FT_Vector* to, + void* user ); + +#define FT_Outline_MoveTo_Func FT_Outline_MoveToFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Outline_LineToFunc */ + /* */ + /* <Description> */ + /* A function pointer type used to describe the signature of a `line */ + /* to' function during outline walking/decomposition. */ + /* */ + /* A `line to' is emitted to indicate a segment in the outline. */ + /* */ + /* <Input> */ + /* to :: A pointer to the target point of the `line to'. */ + /* */ + /* user :: A typeless pointer which is passed from the caller of the */ + /* decomposition function. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + typedef int + (*FT_Outline_LineToFunc)( const FT_Vector* to, + void* user ); + +#define FT_Outline_LineTo_Func FT_Outline_LineToFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Outline_ConicToFunc */ + /* */ + /* <Description> */ + /* A function pointer type used to describe the signature of a `conic */ + /* to' function during outline walking or decomposition. */ + /* */ + /* A `conic to' is emitted to indicate a second-order Bézier arc in */ + /* the outline. */ + /* */ + /* <Input> */ + /* control :: An intermediate control point between the last position */ + /* and the new target in `to'. */ + /* */ + /* to :: A pointer to the target end point of the conic arc. */ + /* */ + /* user :: A typeless pointer which is passed from the caller of */ + /* the decomposition function. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + typedef int + (*FT_Outline_ConicToFunc)( const FT_Vector* control, + const FT_Vector* to, + void* user ); + +#define FT_Outline_ConicTo_Func FT_Outline_ConicToFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Outline_CubicToFunc */ + /* */ + /* <Description> */ + /* A function pointer type used to describe the signature of a `cubic */ + /* to' function during outline walking or decomposition. */ + /* */ + /* A `cubic to' is emitted to indicate a third-order Bézier arc. */ + /* */ + /* <Input> */ + /* control1 :: A pointer to the first Bézier control point. */ + /* */ + /* control2 :: A pointer to the second Bézier control point. */ + /* */ + /* to :: A pointer to the target end point. */ + /* */ + /* user :: A typeless pointer which is passed from the caller of */ + /* the decomposition function. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + typedef int + (*FT_Outline_CubicToFunc)( const FT_Vector* control1, + const FT_Vector* control2, + const FT_Vector* to, + void* user ); + +#define FT_Outline_CubicTo_Func FT_Outline_CubicToFunc + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Outline_Funcs */ + /* */ + /* <Description> */ + /* A structure to hold various function pointers used during outline */ + /* decomposition in order to emit segments, conic, and cubic Béziers. */ + /* */ + /* <Fields> */ + /* move_to :: The `move to' emitter. */ + /* */ + /* line_to :: The segment emitter. */ + /* */ + /* conic_to :: The second-order Bézier arc emitter. */ + /* */ + /* cubic_to :: The third-order Bézier arc emitter. */ + /* */ + /* shift :: The shift that is applied to coordinates before they */ + /* are sent to the emitter. */ + /* */ + /* delta :: The delta that is applied to coordinates before they */ + /* are sent to the emitter, but after the shift. */ + /* */ + /* <Note> */ + /* The point coordinates sent to the emitters are the transformed */ + /* version of the original coordinates (this is important for high */ + /* accuracy during scan-conversion). The transformation is simple: */ + /* */ + /* { */ + /* x' = (x << shift) - delta */ + /* y' = (x << shift) - delta */ + /* } */ + /* */ + /* Set the values of `shift' and `delta' to~0 to get the original */ + /* point coordinates. */ + /* */ + typedef struct FT_Outline_Funcs_ + { + FT_Outline_MoveToFunc move_to; + FT_Outline_LineToFunc line_to; + FT_Outline_ConicToFunc conic_to; + FT_Outline_CubicToFunc cubic_to; + + int shift; + FT_Pos delta; + + } FT_Outline_Funcs; + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* basic_types */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_IMAGE_TAG */ + /* */ + /* <Description> */ + /* This macro converts four-letter tags to an unsigned long type. */ + /* */ + /* <Note> */ + /* Since many 16-bit compilers don't like 32-bit enumerations, you */ + /* should redefine this macro in case of problems to something like */ + /* this: */ + /* */ + /* { */ + /* #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) value */ + /* } */ + /* */ + /* to get a simple enumeration without assigning special numbers. */ + /* */ +#ifndef FT_IMAGE_TAG +#define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) \ + value = ( ( (unsigned long)_x1 << 24 ) | \ + ( (unsigned long)_x2 << 16 ) | \ + ( (unsigned long)_x3 << 8 ) | \ + (unsigned long)_x4 ) +#endif /* FT_IMAGE_TAG */ + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Glyph_Format */ + /* */ + /* <Description> */ + /* An enumeration type used to describe the format of a given glyph */ + /* image. Note that this version of FreeType only supports two image */ + /* formats, even though future font drivers will be able to register */ + /* their own format. */ + /* */ + /* <Values> */ + /* FT_GLYPH_FORMAT_NONE :: */ + /* The value~0 is reserved. */ + /* */ + /* FT_GLYPH_FORMAT_COMPOSITE :: */ + /* The glyph image is a composite of several other images. This */ + /* format is _only_ used with @FT_LOAD_NO_RECURSE, and is used to */ + /* report compound glyphs (like accented characters). */ + /* */ + /* FT_GLYPH_FORMAT_BITMAP :: */ + /* The glyph image is a bitmap, and can be described as an */ + /* @FT_Bitmap. You generally need to access the `bitmap' field of */ + /* the @FT_GlyphSlotRec structure to read it. */ + /* */ + /* FT_GLYPH_FORMAT_OUTLINE :: */ + /* The glyph image is a vectorial outline made of line segments */ + /* and Bézier arcs; it can be described as an @FT_Outline; you */ + /* generally want to access the `outline' field of the */ + /* @FT_GlyphSlotRec structure to read it. */ + /* */ + /* FT_GLYPH_FORMAT_PLOTTER :: */ + /* The glyph image is a vectorial path with no inside and outside */ + /* contours. Some Type~1 fonts, like those in the Hershey family, */ + /* contain glyphs in this format. These are described as */ + /* @FT_Outline, but FreeType isn't currently capable of rendering */ + /* them correctly. */ + /* */ + typedef enum FT_Glyph_Format_ + { + FT_IMAGE_TAG( FT_GLYPH_FORMAT_NONE, 0, 0, 0, 0 ), + + FT_IMAGE_TAG( FT_GLYPH_FORMAT_COMPOSITE, 'c', 'o', 'm', 'p' ), + FT_IMAGE_TAG( FT_GLYPH_FORMAT_BITMAP, 'b', 'i', 't', 's' ), + FT_IMAGE_TAG( FT_GLYPH_FORMAT_OUTLINE, 'o', 'u', 't', 'l' ), + FT_IMAGE_TAG( FT_GLYPH_FORMAT_PLOTTER, 'p', 'l', 'o', 't' ) + + } FT_Glyph_Format; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* ft_glyph_format_xxx */ + /* */ + /* <Description> */ + /* A list of deprecated constants. Use the corresponding */ + /* @FT_Glyph_Format values instead. */ + /* */ + /* <Values> */ + /* ft_glyph_format_none :: See @FT_GLYPH_FORMAT_NONE. */ + /* ft_glyph_format_composite :: See @FT_GLYPH_FORMAT_COMPOSITE. */ + /* ft_glyph_format_bitmap :: See @FT_GLYPH_FORMAT_BITMAP. */ + /* ft_glyph_format_outline :: See @FT_GLYPH_FORMAT_OUTLINE. */ + /* ft_glyph_format_plotter :: See @FT_GLYPH_FORMAT_PLOTTER. */ + /* */ +#define ft_glyph_format_none FT_GLYPH_FORMAT_NONE +#define ft_glyph_format_composite FT_GLYPH_FORMAT_COMPOSITE +#define ft_glyph_format_bitmap FT_GLYPH_FORMAT_BITMAP +#define ft_glyph_format_outline FT_GLYPH_FORMAT_OUTLINE +#define ft_glyph_format_plotter FT_GLYPH_FORMAT_PLOTTER + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** R A S T E R D E F I N I T I O N S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* A raster is a scan converter, in charge of rendering an outline into */ + /* a a bitmap. This section contains the public API for rasters. */ + /* */ + /* Note that in FreeType 2, all rasters are now encapsulated within */ + /* specific modules called `renderers'. See `freetype/ftrender.h' for */ + /* more details on renderers. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* raster */ + /* */ + /* <Title> */ + /* Scanline Converter */ + /* */ + /* <Abstract> */ + /* How vectorial outlines are converted into bitmaps and pixmaps. */ + /* */ + /* <Description> */ + /* This section contains technical definitions. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Raster */ + /* */ + /* <Description> */ + /* A handle (pointer) to a raster object. Each object can be used */ + /* independently to convert an outline into a bitmap or pixmap. */ + /* */ + typedef struct FT_RasterRec_* FT_Raster; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Span */ + /* */ + /* <Description> */ + /* A structure used to model a single span of gray (or black) pixels */ + /* when rendering a monochrome or anti-aliased bitmap. */ + /* */ + /* <Fields> */ + /* x :: The span's horizontal start position. */ + /* */ + /* len :: The span's length in pixels. */ + /* */ + /* coverage :: The span color/coverage, ranging from 0 (background) */ + /* to 255 (foreground). Only used for anti-aliased */ + /* rendering. */ + /* */ + /* <Note> */ + /* This structure is used by the span drawing callback type named */ + /* @FT_SpanFunc which takes the y~coordinate of the span as a */ + /* a parameter. */ + /* */ + /* The coverage value is always between 0 and 255. If you want less */ + /* gray values, the callback function has to reduce them. */ + /* */ + typedef struct FT_Span_ + { + short x; + unsigned short len; + unsigned char coverage; + + } FT_Span; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_SpanFunc */ + /* */ + /* <Description> */ + /* A function used as a call-back by the anti-aliased renderer in */ + /* order to let client applications draw themselves the gray pixel */ + /* spans on each scan line. */ + /* */ + /* <Input> */ + /* y :: The scanline's y~coordinate. */ + /* */ + /* count :: The number of spans to draw on this scanline. */ + /* */ + /* spans :: A table of `count' spans to draw on the scanline. */ + /* */ + /* user :: User-supplied data that is passed to the callback. */ + /* */ + /* <Note> */ + /* This callback allows client applications to directly render the */ + /* gray spans of the anti-aliased bitmap to any kind of surfaces. */ + /* */ + /* This can be used to write anti-aliased outlines directly to a */ + /* given background bitmap, and even perform translucency. */ + /* */ + /* Note that the `count' field cannot be greater than a fixed value */ + /* defined by the `FT_MAX_GRAY_SPANS' configuration macro in */ + /* `ftoption.h'. By default, this value is set to~32, which means */ + /* that if there are more than 32~spans on a given scanline, the */ + /* callback is called several times with the same `y' parameter in */ + /* order to draw all callbacks. */ + /* */ + /* Otherwise, the callback is only called once per scan-line, and */ + /* only for those scanlines that do have `gray' pixels on them. */ + /* */ + typedef void + (*FT_SpanFunc)( int y, + int count, + const FT_Span* spans, + void* user ); + +#define FT_Raster_Span_Func FT_SpanFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_BitTest_Func */ + /* */ + /* <Description> */ + /* THIS TYPE IS DEPRECATED. DO NOT USE IT. */ + /* */ + /* A function used as a call-back by the monochrome scan-converter */ + /* to test whether a given target pixel is already set to the drawing */ + /* `color'. These tests are crucial to implement drop-out control */ + /* per-se the TrueType spec. */ + /* */ + /* <Input> */ + /* y :: The pixel's y~coordinate. */ + /* */ + /* x :: The pixel's x~coordinate. */ + /* */ + /* user :: User-supplied data that is passed to the callback. */ + /* */ + /* <Return> */ + /* 1~if the pixel is `set', 0~otherwise. */ + /* */ + typedef int + (*FT_Raster_BitTest_Func)( int y, + int x, + void* user ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_BitSet_Func */ + /* */ + /* <Description> */ + /* THIS TYPE IS DEPRECATED. DO NOT USE IT. */ + /* */ + /* A function used as a call-back by the monochrome scan-converter */ + /* to set an individual target pixel. This is crucial to implement */ + /* drop-out control according to the TrueType specification. */ + /* */ + /* <Input> */ + /* y :: The pixel's y~coordinate. */ + /* */ + /* x :: The pixel's x~coordinate. */ + /* */ + /* user :: User-supplied data that is passed to the callback. */ + /* */ + /* <Return> */ + /* 1~if the pixel is `set', 0~otherwise. */ + /* */ + typedef void + (*FT_Raster_BitSet_Func)( int y, + int x, + void* user ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_RASTER_FLAG_XXX */ + /* */ + /* <Description> */ + /* A list of bit flag constants as used in the `flags' field of a */ + /* @FT_Raster_Params structure. */ + /* */ + /* <Values> */ + /* FT_RASTER_FLAG_DEFAULT :: This value is 0. */ + /* */ + /* FT_RASTER_FLAG_AA :: This flag is set to indicate that an */ + /* anti-aliased glyph image should be */ + /* generated. Otherwise, it will be */ + /* monochrome (1-bit). */ + /* */ + /* FT_RASTER_FLAG_DIRECT :: This flag is set to indicate direct */ + /* rendering. In this mode, client */ + /* applications must provide their own span */ + /* callback. This lets them directly */ + /* draw or compose over an existing bitmap. */ + /* If this bit is not set, the target */ + /* pixmap's buffer _must_ be zeroed before */ + /* rendering. */ + /* */ + /* Note that for now, direct rendering is */ + /* only possible with anti-aliased glyphs. */ + /* */ + /* FT_RASTER_FLAG_CLIP :: This flag is only used in direct */ + /* rendering mode. If set, the output will */ + /* be clipped to a box specified in the */ + /* `clip_box' field of the */ + /* @FT_Raster_Params structure. */ + /* */ + /* Note that by default, the glyph bitmap */ + /* is clipped to the target pixmap, except */ + /* in direct rendering mode where all spans */ + /* are generated if no clipping box is set. */ + /* */ +#define FT_RASTER_FLAG_DEFAULT 0x0 +#define FT_RASTER_FLAG_AA 0x1 +#define FT_RASTER_FLAG_DIRECT 0x2 +#define FT_RASTER_FLAG_CLIP 0x4 + + /* deprecated */ +#define ft_raster_flag_default FT_RASTER_FLAG_DEFAULT +#define ft_raster_flag_aa FT_RASTER_FLAG_AA +#define ft_raster_flag_direct FT_RASTER_FLAG_DIRECT +#define ft_raster_flag_clip FT_RASTER_FLAG_CLIP + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Raster_Params */ + /* */ + /* <Description> */ + /* A structure to hold the arguments used by a raster's render */ + /* function. */ + /* */ + /* <Fields> */ + /* target :: The target bitmap. */ + /* */ + /* source :: A pointer to the source glyph image (e.g., an */ + /* @FT_Outline). */ + /* */ + /* flags :: The rendering flags. */ + /* */ + /* gray_spans :: The gray span drawing callback. */ + /* */ + /* black_spans :: The black span drawing callback. UNIMPLEMENTED! */ + /* */ + /* bit_test :: The bit test callback. UNIMPLEMENTED! */ + /* */ + /* bit_set :: The bit set callback. UNIMPLEMENTED! */ + /* */ + /* user :: User-supplied data that is passed to each drawing */ + /* callback. */ + /* */ + /* clip_box :: An optional clipping box. It is only used in */ + /* direct rendering mode. Note that coordinates here */ + /* should be expressed in _integer_ pixels (and not in */ + /* 26.6 fixed-point units). */ + /* */ + /* <Note> */ + /* An anti-aliased glyph bitmap is drawn if the @FT_RASTER_FLAG_AA */ + /* bit flag is set in the `flags' field, otherwise a monochrome */ + /* bitmap is generated. */ + /* */ + /* If the @FT_RASTER_FLAG_DIRECT bit flag is set in `flags', the */ + /* raster will call the `gray_spans' callback to draw gray pixel */ + /* spans, in the case of an aa glyph bitmap, it will call */ + /* `black_spans', and `bit_test' and `bit_set' in the case of a */ + /* monochrome bitmap. This allows direct composition over a */ + /* pre-existing bitmap through user-provided callbacks to perform the */ + /* span drawing/composition. */ + /* */ + /* Note that the `bit_test' and `bit_set' callbacks are required when */ + /* rendering a monochrome bitmap, as they are crucial to implement */ + /* correct drop-out control as defined in the TrueType specification. */ + /* */ + typedef struct FT_Raster_Params_ + { + const FT_Bitmap* target; + const void* source; + int flags; + FT_SpanFunc gray_spans; + FT_SpanFunc black_spans; /* doesn't work! */ + FT_Raster_BitTest_Func bit_test; /* doesn't work! */ + FT_Raster_BitSet_Func bit_set; /* doesn't work! */ + void* user; + FT_BBox clip_box; + + } FT_Raster_Params; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_NewFunc */ + /* */ + /* <Description> */ + /* A function used to create a new raster object. */ + /* */ + /* <Input> */ + /* memory :: A handle to the memory allocator. */ + /* */ + /* <Output> */ + /* raster :: A handle to the new raster object. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + /* <Note> */ + /* The `memory' parameter is a typeless pointer in order to avoid */ + /* un-wanted dependencies on the rest of the FreeType code. In */ + /* practice, it is an @FT_Memory object, i.e., a handle to the */ + /* standard FreeType memory allocator. However, this field can be */ + /* completely ignored by a given raster implementation. */ + /* */ + typedef int + (*FT_Raster_NewFunc)( void* memory, + FT_Raster* raster ); + +#define FT_Raster_New_Func FT_Raster_NewFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_DoneFunc */ + /* */ + /* <Description> */ + /* A function used to destroy a given raster object. */ + /* */ + /* <Input> */ + /* raster :: A handle to the raster object. */ + /* */ + typedef void + (*FT_Raster_DoneFunc)( FT_Raster raster ); + +#define FT_Raster_Done_Func FT_Raster_DoneFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_ResetFunc */ + /* */ + /* <Description> */ + /* FreeType provides an area of memory called the `render pool', */ + /* available to all registered rasters. This pool can be freely used */ + /* during a given scan-conversion but is shared by all rasters. Its */ + /* content is thus transient. */ + /* */ + /* This function is called each time the render pool changes, or just */ + /* after a new raster object is created. */ + /* */ + /* <Input> */ + /* raster :: A handle to the new raster object. */ + /* */ + /* pool_base :: The address in memory of the render pool. */ + /* */ + /* pool_size :: The size in bytes of the render pool. */ + /* */ + /* <Note> */ + /* Rasters can ignore the render pool and rely on dynamic memory */ + /* allocation if they want to (a handle to the memory allocator is */ + /* passed to the raster constructor). However, this is not */ + /* recommended for efficiency purposes. */ + /* */ + typedef void + (*FT_Raster_ResetFunc)( FT_Raster raster, + unsigned char* pool_base, + unsigned long pool_size ); + +#define FT_Raster_Reset_Func FT_Raster_ResetFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_SetModeFunc */ + /* */ + /* <Description> */ + /* This function is a generic facility to change modes or attributes */ + /* in a given raster. This can be used for debugging purposes, or */ + /* simply to allow implementation-specific `features' in a given */ + /* raster module. */ + /* */ + /* <Input> */ + /* raster :: A handle to the new raster object. */ + /* */ + /* mode :: A 4-byte tag used to name the mode or property. */ + /* */ + /* args :: A pointer to the new mode/property to use. */ + /* */ + typedef int + (*FT_Raster_SetModeFunc)( FT_Raster raster, + unsigned long mode, + void* args ); + +#define FT_Raster_Set_Mode_Func FT_Raster_SetModeFunc + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Raster_RenderFunc */ + /* */ + /* <Description> */ + /* Invoke a given raster to scan-convert a given glyph image into a */ + /* target bitmap. */ + /* */ + /* <Input> */ + /* raster :: A handle to the raster object. */ + /* */ + /* params :: A pointer to an @FT_Raster_Params structure used to */ + /* store the rendering parameters. */ + /* */ + /* <Return> */ + /* Error code. 0~means success. */ + /* */ + /* <Note> */ + /* The exact format of the source image depends on the raster's glyph */ + /* format defined in its @FT_Raster_Funcs structure. It can be an */ + /* @FT_Outline or anything else in order to support a large array of */ + /* glyph formats. */ + /* */ + /* Note also that the render function can fail and return a */ + /* `FT_Err_Unimplemented_Feature' error code if the raster used does */ + /* not support direct composition. */ + /* */ + /* XXX: For now, the standard raster doesn't support direct */ + /* composition but this should change for the final release (see */ + /* the files `demos/src/ftgrays.c' and `demos/src/ftgrays2.c' */ + /* for examples of distinct implementations which support direct */ + /* composition). */ + /* */ + typedef int + (*FT_Raster_RenderFunc)( FT_Raster raster, + const FT_Raster_Params* params ); + +#define FT_Raster_Render_Func FT_Raster_RenderFunc + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Raster_Funcs */ + /* */ + /* <Description> */ + /* A structure used to describe a given raster class to the library. */ + /* */ + /* <Fields> */ + /* glyph_format :: The supported glyph format for this raster. */ + /* */ + /* raster_new :: The raster constructor. */ + /* */ + /* raster_reset :: Used to reset the render pool within the raster. */ + /* */ + /* raster_render :: A function to render a glyph into a given bitmap. */ + /* */ + /* raster_done :: The raster destructor. */ + /* */ + typedef struct FT_Raster_Funcs_ + { + FT_Glyph_Format glyph_format; + FT_Raster_NewFunc raster_new; + FT_Raster_ResetFunc raster_reset; + FT_Raster_SetModeFunc raster_set_mode; + FT_Raster_RenderFunc raster_render; + FT_Raster_DoneFunc raster_done; + + } FT_Raster_Funcs; + + + /* */ + + +FT_END_HEADER + +#endif /* __FTIMAGE_H__ */ + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/include/freetype/ftincrem.h b/include/freetype/ftincrem.h new file mode 100644 index 0000000..aaf689f --- /dev/null +++ b/include/freetype/ftincrem.h @@ -0,0 +1,353 @@ +/***************************************************************************/ +/* */ +/* ftincrem.h */ +/* */ +/* FreeType incremental loading (specification). */ +/* */ +/* Copyright 2002, 2003, 2006, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTINCREM_H__ +#define __FTINCREM_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /*************************************************************************** + * + * @section: + * incremental + * + * @title: + * Incremental Loading + * + * @abstract: + * Custom Glyph Loading. + * + * @description: + * This section contains various functions used to perform so-called + * `incremental' glyph loading. This is a mode where all glyphs loaded + * from a given @FT_Face are provided by the client application, + * + * Apart from that, all other tables are loaded normally from the font + * file. This mode is useful when FreeType is used within another + * engine, e.g., a PostScript Imaging Processor. + * + * To enable this mode, you must use @FT_Open_Face, passing an + * @FT_Parameter with the @FT_PARAM_TAG_INCREMENTAL tag and an + * @FT_Incremental_Interface value. See the comments for + * @FT_Incremental_InterfaceRec for an example. + * + */ + + + /*************************************************************************** + * + * @type: + * FT_Incremental + * + * @description: + * An opaque type describing a user-provided object used to implement + * `incremental' glyph loading within FreeType. This is used to support + * embedded fonts in certain environments (e.g., PostScript interpreters), + * where the glyph data isn't in the font file, or must be overridden by + * different values. + * + * @note: + * It is up to client applications to create and implement @FT_Incremental + * objects, as long as they provide implementations for the methods + * @FT_Incremental_GetGlyphDataFunc, @FT_Incremental_FreeGlyphDataFunc + * and @FT_Incremental_GetGlyphMetricsFunc. + * + * See the description of @FT_Incremental_InterfaceRec to understand how + * to use incremental objects with FreeType. + * + */ + typedef struct FT_IncrementalRec_* FT_Incremental; + + + /*************************************************************************** + * + * @struct: + * FT_Incremental_MetricsRec + * + * @description: + * A small structure used to contain the basic glyph metrics returned + * by the @FT_Incremental_GetGlyphMetricsFunc method. + * + * @fields: + * bearing_x :: + * Left bearing, in font units. + * + * bearing_y :: + * Top bearing, in font units. + * + * advance :: + * Horizontal component of glyph advance, in font units. + * + * advance_v :: + * Vertical component of glyph advance, in font units. + * + * @note: + * These correspond to horizontal or vertical metrics depending on the + * value of the `vertical' argument to the function + * @FT_Incremental_GetGlyphMetricsFunc. + * + */ + typedef struct FT_Incremental_MetricsRec_ + { + FT_Long bearing_x; + FT_Long bearing_y; + FT_Long advance; + FT_Long advance_v; /* since 2.3.12 */ + + } FT_Incremental_MetricsRec; + + + /*************************************************************************** + * + * @struct: + * FT_Incremental_Metrics + * + * @description: + * A handle to an @FT_Incremental_MetricsRec structure. + * + */ + typedef struct FT_Incremental_MetricsRec_* FT_Incremental_Metrics; + + + /*************************************************************************** + * + * @type: + * FT_Incremental_GetGlyphDataFunc + * + * @description: + * A function called by FreeType to access a given glyph's data bytes + * during @FT_Load_Glyph or @FT_Load_Char if incremental loading is + * enabled. + * + * Note that the format of the glyph's data bytes depends on the font + * file format. For TrueType, it must correspond to the raw bytes within + * the `glyf' table. For PostScript formats, it must correspond to the + * *unencrypted* charstring bytes, without any `lenIV' header. It is + * undefined for any other format. + * + * @input: + * incremental :: + * Handle to an opaque @FT_Incremental handle provided by the client + * application. + * + * glyph_index :: + * Index of relevant glyph. + * + * @output: + * adata :: + * A structure describing the returned glyph data bytes (which will be + * accessed as a read-only byte block). + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * If this function returns successfully the method + * @FT_Incremental_FreeGlyphDataFunc will be called later to release + * the data bytes. + * + * Nested calls to @FT_Incremental_GetGlyphDataFunc can happen for + * compound glyphs. + * + */ + typedef FT_Error + (*FT_Incremental_GetGlyphDataFunc)( FT_Incremental incremental, + FT_UInt glyph_index, + FT_Data* adata ); + + + /*************************************************************************** + * + * @type: + * FT_Incremental_FreeGlyphDataFunc + * + * @description: + * A function used to release the glyph data bytes returned by a + * successful call to @FT_Incremental_GetGlyphDataFunc. + * + * @input: + * incremental :: + * A handle to an opaque @FT_Incremental handle provided by the client + * application. + * + * data :: + * A structure describing the glyph data bytes (which will be accessed + * as a read-only byte block). + * + */ + typedef void + (*FT_Incremental_FreeGlyphDataFunc)( FT_Incremental incremental, + FT_Data* data ); + + + /*************************************************************************** + * + * @type: + * FT_Incremental_GetGlyphMetricsFunc + * + * @description: + * A function used to retrieve the basic metrics of a given glyph index + * before accessing its data. This is necessary because, in certain + * formats like TrueType, the metrics are stored in a different place from + * the glyph images proper. + * + * @input: + * incremental :: + * A handle to an opaque @FT_Incremental handle provided by the client + * application. + * + * glyph_index :: + * Index of relevant glyph. + * + * vertical :: + * If true, return vertical metrics. + * + * ametrics :: + * This parameter is used for both input and output. + * The original glyph metrics, if any, in font units. If metrics are + * not available all the values must be set to zero. + * + * @output: + * ametrics :: + * The replacement glyph metrics in font units. + * + */ + typedef FT_Error + (*FT_Incremental_GetGlyphMetricsFunc) + ( FT_Incremental incremental, + FT_UInt glyph_index, + FT_Bool vertical, + FT_Incremental_MetricsRec *ametrics ); + + + /************************************************************************** + * + * @struct: + * FT_Incremental_FuncsRec + * + * @description: + * A table of functions for accessing fonts that load data + * incrementally. Used in @FT_Incremental_InterfaceRec. + * + * @fields: + * get_glyph_data :: + * The function to get glyph data. Must not be null. + * + * free_glyph_data :: + * The function to release glyph data. Must not be null. + * + * get_glyph_metrics :: + * The function to get glyph metrics. May be null if the font does + * not provide overriding glyph metrics. + * + */ + typedef struct FT_Incremental_FuncsRec_ + { + FT_Incremental_GetGlyphDataFunc get_glyph_data; + FT_Incremental_FreeGlyphDataFunc free_glyph_data; + FT_Incremental_GetGlyphMetricsFunc get_glyph_metrics; + + } FT_Incremental_FuncsRec; + + + /*************************************************************************** + * + * @struct: + * FT_Incremental_InterfaceRec + * + * @description: + * A structure to be used with @FT_Open_Face to indicate that the user + * wants to support incremental glyph loading. You should use it with + * @FT_PARAM_TAG_INCREMENTAL as in the following example: + * + * { + * FT_Incremental_InterfaceRec inc_int; + * FT_Parameter parameter; + * FT_Open_Args open_args; + * + * + * // set up incremental descriptor + * inc_int.funcs = my_funcs; + * inc_int.object = my_object; + * + * // set up optional parameter + * parameter.tag = FT_PARAM_TAG_INCREMENTAL; + * parameter.data = &inc_int; + * + * // set up FT_Open_Args structure + * open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; + * open_args.pathname = my_font_pathname; + * open_args.num_params = 1; + * open_args.params = ¶meter; // we use one optional argument + * + * // open the font + * error = FT_Open_Face( library, &open_args, index, &face ); + * ... + * } + * + */ + typedef struct FT_Incremental_InterfaceRec_ + { + const FT_Incremental_FuncsRec* funcs; + FT_Incremental object; + + } FT_Incremental_InterfaceRec; + + + /*************************************************************************** + * + * @type: + * FT_Incremental_Interface + * + * @description: + * A pointer to an @FT_Incremental_InterfaceRec structure. + * + */ + typedef FT_Incremental_InterfaceRec* FT_Incremental_Interface; + + + /*************************************************************************** + * + * @constant: + * FT_PARAM_TAG_INCREMENTAL + * + * @description: + * A constant used as the tag of @FT_Parameter structures to indicate + * an incremental loading object to be used by FreeType. + * + */ +#define FT_PARAM_TAG_INCREMENTAL FT_MAKE_TAG( 'i', 'n', 'c', 'r' ) + + /* */ + +FT_END_HEADER + +#endif /* __FTINCREM_H__ */ + + +/* END */ diff --git a/include/freetype/ftlcdfil.h b/include/freetype/ftlcdfil.h new file mode 100644 index 0000000..0b55ebe --- /dev/null +++ b/include/freetype/ftlcdfil.h @@ -0,0 +1,213 @@ +/***************************************************************************/ +/* */ +/* ftlcdfil.h */ +/* */ +/* FreeType API for color filtering of subpixel bitmap glyphs */ +/* (specification). */ +/* */ +/* Copyright 2006, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FT_LCD_FILTER_H__ +#define __FT_LCD_FILTER_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /*************************************************************************** + * + * @section: + * lcd_filtering + * + * @title: + * LCD Filtering + * + * @abstract: + * Reduce color fringes of LCD-optimized bitmaps. + * + * @description: + * The @FT_Library_SetLcdFilter API can be used to specify a low-pass + * filter which is then applied to LCD-optimized bitmaps generated + * through @FT_Render_Glyph. This is useful to reduce color fringes + * which would occur with unfiltered rendering. + * + * Note that no filter is active by default, and that this function is + * *not* implemented in default builds of the library. You need to + * #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING in your `ftoption.h' file + * in order to activate it. + */ + + + /**************************************************************************** + * + * @enum: + * FT_LcdFilter + * + * @description: + * A list of values to identify various types of LCD filters. + * + * @values: + * FT_LCD_FILTER_NONE :: + * Do not perform filtering. When used with subpixel rendering, this + * results in sometimes severe color fringes. + * + * FT_LCD_FILTER_DEFAULT :: + * The default filter reduces color fringes considerably, at the cost + * of a slight blurriness in the output. + * + * FT_LCD_FILTER_LIGHT :: + * The light filter is a variant that produces less blurriness at the + * cost of slightly more color fringes than the default one. It might + * be better, depending on taste, your monitor, or your personal vision. + * + * FT_LCD_FILTER_LEGACY :: + * This filter corresponds to the original libXft color filter. It + * provides high contrast output but can exhibit really bad color + * fringes if glyphs are not extremely well hinted to the pixel grid. + * In other words, it only works well if the TrueType bytecode + * interpreter is enabled *and* high-quality hinted fonts are used. + * + * This filter is only provided for comparison purposes, and might be + * disabled or stay unsupported in the future. + * + * @since: + * 2.3.0 + */ + typedef enum FT_LcdFilter_ + { + FT_LCD_FILTER_NONE = 0, + FT_LCD_FILTER_DEFAULT = 1, + FT_LCD_FILTER_LIGHT = 2, + FT_LCD_FILTER_LEGACY = 16, + + FT_LCD_FILTER_MAX /* do not remove */ + + } FT_LcdFilter; + + + /************************************************************************** + * + * @func: + * FT_Library_SetLcdFilter + * + * @description: + * This function is used to apply color filtering to LCD decimated + * bitmaps, like the ones used when calling @FT_Render_Glyph with + * @FT_RENDER_MODE_LCD or @FT_RENDER_MODE_LCD_V. + * + * @input: + * library :: + * A handle to the target library instance. + * + * filter :: + * The filter type. + * + * You can use @FT_LCD_FILTER_NONE here to disable this feature, or + * @FT_LCD_FILTER_DEFAULT to use a default filter that should work + * well on most LCD screens. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This feature is always disabled by default. Clients must make an + * explicit call to this function with a `filter' value other than + * @FT_LCD_FILTER_NONE in order to enable it. + * + * Due to *PATENTS* covering subpixel rendering, this function doesn't + * do anything except returning `FT_Err_Unimplemented_Feature' if the + * configuration macro FT_CONFIG_OPTION_SUBPIXEL_RENDERING is not + * defined in your build of the library, which should correspond to all + * default builds of FreeType. + * + * The filter affects glyph bitmaps rendered through @FT_Render_Glyph, + * @FT_Outline_Get_Bitmap, @FT_Load_Glyph, and @FT_Load_Char. + * + * It does _not_ affect the output of @FT_Outline_Render and + * @FT_Outline_Get_Bitmap. + * + * If this feature is activated, the dimensions of LCD glyph bitmaps are + * either larger or taller than the dimensions of the corresponding + * outline with regards to the pixel grid. For example, for + * @FT_RENDER_MODE_LCD, the filter adds up to 3~pixels to the left, and + * up to 3~pixels to the right. + * + * The bitmap offset values are adjusted correctly, so clients shouldn't + * need to modify their layout and glyph positioning code when enabling + * the filter. + * + * @since: + * 2.3.0 + */ + FT_EXPORT( FT_Error ) + FT_Library_SetLcdFilter( FT_Library library, + FT_LcdFilter filter ); + + + /************************************************************************** + * + * @func: + * FT_Library_SetLcdFilterWeights + * + * @description: + * Use this function to override the filter weights selected by + * @FT_Library_SetLcdFilter. By default, FreeType uses the quintuple + * (0x00, 0x55, 0x56, 0x55, 0x00) for FT_LCD_FILTER_LIGHT, and (0x10, + * 0x40, 0x70, 0x40, 0x10) for FT_LCD_FILTER_DEFAULT and + * FT_LCD_FILTER_LEGACY. + * + * @input: + * library :: + * A handle to the target library instance. + * + * weights :: + * A pointer to an array; the function copies the first five bytes and + * uses them to specify the filter weights. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * Due to *PATENTS* covering subpixel rendering, this function doesn't + * do anything except returning `FT_Err_Unimplemented_Feature' if the + * configuration macro FT_CONFIG_OPTION_SUBPIXEL_RENDERING is not + * defined in your build of the library, which should correspond to all + * default builds of FreeType. + * + * This function must be called after @FT_Library_SetLcdFilter to have + * any effect. + * + * @since: + * 2.4.0 + */ + FT_EXPORT( FT_Error ) + FT_Library_SetLcdFilterWeights( FT_Library library, + unsigned char *weights ); + + /* */ + + +FT_END_HEADER + +#endif /* __FT_LCD_FILTER_H__ */ + + +/* END */ diff --git a/include/freetype/ftlist.h b/include/freetype/ftlist.h new file mode 100644 index 0000000..bb6f7f1 --- /dev/null +++ b/include/freetype/ftlist.h @@ -0,0 +1,277 @@ +/***************************************************************************/ +/* */ +/* ftlist.h */ +/* */ +/* Generic list support for FreeType (specification). */ +/* */ +/* Copyright 1996-2001, 2003, 2007, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file implements functions relative to list processing. Its */ + /* data structures are defined in `freetype.h'. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTLIST_H__ +#define __FTLIST_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* list_processing */ + /* */ + /* <Title> */ + /* List Processing */ + /* */ + /* <Abstract> */ + /* Simple management of lists. */ + /* */ + /* <Description> */ + /* This section contains various definitions related to list */ + /* processing using doubly-linked nodes. */ + /* */ + /* <Order> */ + /* FT_List */ + /* FT_ListNode */ + /* FT_ListRec */ + /* FT_ListNodeRec */ + /* */ + /* FT_List_Add */ + /* FT_List_Insert */ + /* FT_List_Find */ + /* FT_List_Remove */ + /* FT_List_Up */ + /* FT_List_Iterate */ + /* FT_List_Iterator */ + /* FT_List_Finalize */ + /* FT_List_Destructor */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Find */ + /* */ + /* <Description> */ + /* Find the list node for a given listed object. */ + /* */ + /* <Input> */ + /* list :: A pointer to the parent list. */ + /* data :: The address of the listed object. */ + /* */ + /* <Return> */ + /* List node. NULL if it wasn't found. */ + /* */ + FT_EXPORT( FT_ListNode ) + FT_List_Find( FT_List list, + void* data ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Add */ + /* */ + /* <Description> */ + /* Append an element to the end of a list. */ + /* */ + /* <InOut> */ + /* list :: A pointer to the parent list. */ + /* node :: The node to append. */ + /* */ + FT_EXPORT( void ) + FT_List_Add( FT_List list, + FT_ListNode node ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Insert */ + /* */ + /* <Description> */ + /* Insert an element at the head of a list. */ + /* */ + /* <InOut> */ + /* list :: A pointer to parent list. */ + /* node :: The node to insert. */ + /* */ + FT_EXPORT( void ) + FT_List_Insert( FT_List list, + FT_ListNode node ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Remove */ + /* */ + /* <Description> */ + /* Remove a node from a list. This function doesn't check whether */ + /* the node is in the list! */ + /* */ + /* <Input> */ + /* node :: The node to remove. */ + /* */ + /* <InOut> */ + /* list :: A pointer to the parent list. */ + /* */ + FT_EXPORT( void ) + FT_List_Remove( FT_List list, + FT_ListNode node ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Up */ + /* */ + /* <Description> */ + /* Move a node to the head/top of a list. Used to maintain LRU */ + /* lists. */ + /* */ + /* <InOut> */ + /* list :: A pointer to the parent list. */ + /* node :: The node to move. */ + /* */ + FT_EXPORT( void ) + FT_List_Up( FT_List list, + FT_ListNode node ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_List_Iterator */ + /* */ + /* <Description> */ + /* An FT_List iterator function which is called during a list parse */ + /* by @FT_List_Iterate. */ + /* */ + /* <Input> */ + /* node :: The current iteration list node. */ + /* */ + /* user :: A typeless pointer passed to @FT_List_Iterate. */ + /* Can be used to point to the iteration's state. */ + /* */ + typedef FT_Error + (*FT_List_Iterator)( FT_ListNode node, + void* user ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Iterate */ + /* */ + /* <Description> */ + /* Parse a list and calls a given iterator function on each element. */ + /* Note that parsing is stopped as soon as one of the iterator calls */ + /* returns a non-zero value. */ + /* */ + /* <Input> */ + /* list :: A handle to the list. */ + /* iterator :: An iterator function, called on each node of the list. */ + /* user :: A user-supplied field which is passed as the second */ + /* argument to the iterator. */ + /* */ + /* <Return> */ + /* The result (a FreeType error code) of the last iterator call. */ + /* */ + FT_EXPORT( FT_Error ) + FT_List_Iterate( FT_List list, + FT_List_Iterator iterator, + void* user ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_List_Destructor */ + /* */ + /* <Description> */ + /* An @FT_List iterator function which is called during a list */ + /* finalization by @FT_List_Finalize to destroy all elements in a */ + /* given list. */ + /* */ + /* <Input> */ + /* system :: The current system object. */ + /* */ + /* data :: The current object to destroy. */ + /* */ + /* user :: A typeless pointer passed to @FT_List_Iterate. It can */ + /* be used to point to the iteration's state. */ + /* */ + typedef void + (*FT_List_Destructor)( FT_Memory memory, + void* data, + void* user ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_List_Finalize */ + /* */ + /* <Description> */ + /* Destroy all elements in the list as well as the list itself. */ + /* */ + /* <Input> */ + /* list :: A handle to the list. */ + /* */ + /* destroy :: A list destructor that will be applied to each element */ + /* of the list. */ + /* */ + /* memory :: The current memory object which handles deallocation. */ + /* */ + /* user :: A user-supplied field which is passed as the last */ + /* argument to the destructor. */ + /* */ + /* <Note> */ + /* This function expects that all nodes added by @FT_List_Add or */ + /* @FT_List_Insert have been dynamically allocated. */ + /* */ + FT_EXPORT( void ) + FT_List_Finalize( FT_List list, + FT_List_Destructor destroy, + FT_Memory memory, + void* user ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTLIST_H__ */ + + +/* END */ diff --git a/include/freetype/ftlzw.h b/include/freetype/ftlzw.h new file mode 100644 index 0000000..00d4016 --- /dev/null +++ b/include/freetype/ftlzw.h @@ -0,0 +1,99 @@ +/***************************************************************************/ +/* */ +/* ftlzw.h */ +/* */ +/* LZW-compressed stream support. */ +/* */ +/* Copyright 2004, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTLZW_H__ +#define __FTLZW_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /* */ + /* <Section> */ + /* lzw */ + /* */ + /* <Title> */ + /* LZW Streams */ + /* */ + /* <Abstract> */ + /* Using LZW-compressed font files. */ + /* */ + /* <Description> */ + /* This section contains the declaration of LZW-specific functions. */ + /* */ + /*************************************************************************/ + + /************************************************************************ + * + * @function: + * FT_Stream_OpenLZW + * + * @description: + * Open a new stream to parse LZW-compressed font files. This is + * mainly used to support the compressed `*.pcf.Z' fonts that come + * with XFree86. + * + * @input: + * stream :: The target embedding stream. + * + * source :: The source stream. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The source stream must be opened _before_ calling this function. + * + * Calling the internal function `FT_Stream_Close' on the new stream will + * *not* call `FT_Stream_Close' on the source stream. None of the stream + * objects will be released to the heap. + * + * The stream implementation is very basic and resets the decompression + * process each time seeking backwards is needed within the stream + * + * In certain builds of the library, LZW compression recognition is + * automatically handled when calling @FT_New_Face or @FT_Open_Face. + * This means that if no font driver is capable of handling the raw + * compressed file, the library will try to open a LZW stream from it + * and re-open the face with it. + * + * This function may return `FT_Err_Unimplemented_Feature' if your build + * of FreeType was not compiled with LZW support. + */ + FT_EXPORT( FT_Error ) + FT_Stream_OpenLZW( FT_Stream stream, + FT_Stream source ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTLZW_H__ */ + + +/* END */ diff --git a/include/freetype/ftmac.h b/include/freetype/ftmac.h new file mode 100644 index 0000000..ab5bab5 --- /dev/null +++ b/include/freetype/ftmac.h @@ -0,0 +1,274 @@ +/***************************************************************************/ +/* */ +/* ftmac.h */ +/* */ +/* Additional Mac-specific API. */ +/* */ +/* Copyright 1996-2001, 2004, 2006, 2007 by */ +/* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* NOTE: Include this file after <freetype/freetype.h> and after any */ +/* Mac-specific headers (because this header uses Mac types such as */ +/* Handle, FSSpec, FSRef, etc.) */ +/* */ +/***************************************************************************/ + + +#ifndef __FTMAC_H__ +#define __FTMAC_H__ + + +#include <ft2build.h> + + +FT_BEGIN_HEADER + + +/* gcc-3.4.1 and later can warn about functions tagged as deprecated */ +#ifndef FT_DEPRECATED_ATTRIBUTE +#if defined(__GNUC__) && \ + ((__GNUC__ >= 4) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1))) +#define FT_DEPRECATED_ATTRIBUTE __attribute__((deprecated)) +#else +#define FT_DEPRECATED_ATTRIBUTE +#endif +#endif + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* mac_specific */ + /* */ + /* <Title> */ + /* Mac Specific Interface */ + /* */ + /* <Abstract> */ + /* Only available on the Macintosh. */ + /* */ + /* <Description> */ + /* The following definitions are only available if FreeType is */ + /* compiled on a Macintosh. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face_From_FOND */ + /* */ + /* <Description> */ + /* Create a new face object from a FOND resource. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library resource. */ + /* */ + /* <Input> */ + /* fond :: A FOND resource. */ + /* */ + /* face_index :: Only supported for the -1 `sanity check' special */ + /* case. */ + /* */ + /* <Output> */ + /* aface :: A handle to a new face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Notes> */ + /* This function can be used to create @FT_Face objects from fonts */ + /* that are installed in the system as follows. */ + /* */ + /* { */ + /* fond = GetResource( 'FOND', fontName ); */ + /* error = FT_New_Face_From_FOND( library, fond, 0, &face ); */ + /* } */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Face_From_FOND( FT_Library library, + Handle fond, + FT_Long face_index, + FT_Face *aface ) + FT_DEPRECATED_ATTRIBUTE; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_GetFile_From_Mac_Name */ + /* */ + /* <Description> */ + /* Return an FSSpec for the disk file containing the named font. */ + /* */ + /* <Input> */ + /* fontName :: Mac OS name of the font (e.g., Times New Roman */ + /* Bold). */ + /* */ + /* <Output> */ + /* pathSpec :: FSSpec to the file. For passing to */ + /* @FT_New_Face_From_FSSpec. */ + /* */ + /* face_index :: Index of the face. For passing to */ + /* @FT_New_Face_From_FSSpec. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_GetFile_From_Mac_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + FT_DEPRECATED_ATTRIBUTE; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_GetFile_From_Mac_ATS_Name */ + /* */ + /* <Description> */ + /* Return an FSSpec for the disk file containing the named font. */ + /* */ + /* <Input> */ + /* fontName :: Mac OS name of the font in ATS framework. */ + /* */ + /* <Output> */ + /* pathSpec :: FSSpec to the file. For passing to */ + /* @FT_New_Face_From_FSSpec. */ + /* */ + /* face_index :: Index of the face. For passing to */ + /* @FT_New_Face_From_FSSpec. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_GetFile_From_Mac_ATS_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + FT_DEPRECATED_ATTRIBUTE; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_GetFilePath_From_Mac_ATS_Name */ + /* */ + /* <Description> */ + /* Return a pathname of the disk file and face index for given font */ + /* name which is handled by ATS framework. */ + /* */ + /* <Input> */ + /* fontName :: Mac OS name of the font in ATS framework. */ + /* */ + /* <Output> */ + /* path :: Buffer to store pathname of the file. For passing */ + /* to @FT_New_Face. The client must allocate this */ + /* buffer before calling this function. */ + /* */ + /* maxPathSize :: Lengths of the buffer `path' that client allocated. */ + /* */ + /* face_index :: Index of the face. For passing to @FT_New_Face. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_GetFilePath_From_Mac_ATS_Name( const char* fontName, + UInt8* path, + UInt32 maxPathSize, + FT_Long* face_index ) + FT_DEPRECATED_ATTRIBUTE; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face_From_FSSpec */ + /* */ + /* <Description> */ + /* Create a new face object from a given resource and typeface index */ + /* using an FSSpec to the font file. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library resource. */ + /* */ + /* <Input> */ + /* spec :: FSSpec to the font file. */ + /* */ + /* face_index :: The index of the face within the resource. The */ + /* first face has index~0. */ + /* <Output> */ + /* aface :: A handle to a new face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* @FT_New_Face_From_FSSpec is identical to @FT_New_Face except */ + /* it accepts an FSSpec instead of a path. */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Face_From_FSSpec( FT_Library library, + const FSSpec *spec, + FT_Long face_index, + FT_Face *aface ) + FT_DEPRECATED_ATTRIBUTE; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face_From_FSRef */ + /* */ + /* <Description> */ + /* Create a new face object from a given resource and typeface index */ + /* using an FSRef to the font file. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library resource. */ + /* */ + /* <Input> */ + /* spec :: FSRef to the font file. */ + /* */ + /* face_index :: The index of the face within the resource. The */ + /* first face has index~0. */ + /* <Output> */ + /* aface :: A handle to a new face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* @FT_New_Face_From_FSRef is identical to @FT_New_Face except */ + /* it accepts an FSRef instead of a path. */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Face_From_FSRef( FT_Library library, + const FSRef *ref, + FT_Long face_index, + FT_Face *aface ) + FT_DEPRECATED_ATTRIBUTE; + + /* */ + + +FT_END_HEADER + + +#endif /* __FTMAC_H__ */ + + +/* END */ diff --git a/include/freetype/ftmm.h b/include/freetype/ftmm.h new file mode 100644 index 0000000..3aefb9e --- /dev/null +++ b/include/freetype/ftmm.h @@ -0,0 +1,378 @@ +/***************************************************************************/ +/* */ +/* ftmm.h */ +/* */ +/* FreeType Multiple Master font interface (specification). */ +/* */ +/* Copyright 1996-2001, 2003, 2004, 2006, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTMM_H__ +#define __FTMM_H__ + + +#include <ft2build.h> +#include FT_TYPE1_TABLES_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* multiple_masters */ + /* */ + /* <Title> */ + /* Multiple Masters */ + /* */ + /* <Abstract> */ + /* How to manage Multiple Masters fonts. */ + /* */ + /* <Description> */ + /* The following types and functions are used to manage Multiple */ + /* Master fonts, i.e., the selection of specific design instances by */ + /* setting design axis coordinates. */ + /* */ + /* George Williams has extended this interface to make it work with */ + /* both Type~1 Multiple Masters fonts and GX distortable (var) */ + /* fonts. Some of these routines only work with MM fonts, others */ + /* will work with both types. They are similar enough that a */ + /* consistent interface makes sense. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_MM_Axis */ + /* */ + /* <Description> */ + /* A simple structure used to model a given axis in design space for */ + /* Multiple Masters fonts. */ + /* */ + /* This structure can't be used for GX var fonts. */ + /* */ + /* <Fields> */ + /* name :: The axis's name. */ + /* */ + /* minimum :: The axis's minimum design coordinate. */ + /* */ + /* maximum :: The axis's maximum design coordinate. */ + /* */ + typedef struct FT_MM_Axis_ + { + FT_String* name; + FT_Long minimum; + FT_Long maximum; + + } FT_MM_Axis; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Multi_Master */ + /* */ + /* <Description> */ + /* A structure used to model the axes and space of a Multiple Masters */ + /* font. */ + /* */ + /* This structure can't be used for GX var fonts. */ + /* */ + /* <Fields> */ + /* num_axis :: Number of axes. Cannot exceed~4. */ + /* */ + /* num_designs :: Number of designs; should be normally 2^num_axis */ + /* even though the Type~1 specification strangely */ + /* allows for intermediate designs to be present. This */ + /* number cannot exceed~16. */ + /* */ + /* axis :: A table of axis descriptors. */ + /* */ + typedef struct FT_Multi_Master_ + { + FT_UInt num_axis; + FT_UInt num_designs; + FT_MM_Axis axis[T1_MAX_MM_AXIS]; + + } FT_Multi_Master; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Var_Axis */ + /* */ + /* <Description> */ + /* A simple structure used to model a given axis in design space for */ + /* Multiple Masters and GX var fonts. */ + /* */ + /* <Fields> */ + /* name :: The axis's name. */ + /* Not always meaningful for GX. */ + /* */ + /* minimum :: The axis's minimum design coordinate. */ + /* */ + /* def :: The axis's default design coordinate. */ + /* FreeType computes meaningful default values for MM; it */ + /* is then an integer value, not in 16.16 format. */ + /* */ + /* maximum :: The axis's maximum design coordinate. */ + /* */ + /* tag :: The axis's tag (the GX equivalent to `name'). */ + /* FreeType provides default values for MM if possible. */ + /* */ + /* strid :: The entry in `name' table (another GX version of */ + /* `name'). */ + /* Not meaningful for MM. */ + /* */ + typedef struct FT_Var_Axis_ + { + FT_String* name; + + FT_Fixed minimum; + FT_Fixed def; + FT_Fixed maximum; + + FT_ULong tag; + FT_UInt strid; + + } FT_Var_Axis; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Var_Named_Style */ + /* */ + /* <Description> */ + /* A simple structure used to model a named style in a GX var font. */ + /* */ + /* This structure can't be used for MM fonts. */ + /* */ + /* <Fields> */ + /* coords :: The design coordinates for this style. */ + /* This is an array with one entry for each axis. */ + /* */ + /* strid :: The entry in `name' table identifying this style. */ + /* */ + typedef struct FT_Var_Named_Style_ + { + FT_Fixed* coords; + FT_UInt strid; + + } FT_Var_Named_Style; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_MM_Var */ + /* */ + /* <Description> */ + /* A structure used to model the axes and space of a Multiple Masters */ + /* or GX var distortable font. */ + /* */ + /* Some fields are specific to one format and not to the other. */ + /* */ + /* <Fields> */ + /* num_axis :: The number of axes. The maximum value is~4 for */ + /* MM; no limit in GX. */ + /* */ + /* num_designs :: The number of designs; should be normally */ + /* 2^num_axis for MM fonts. Not meaningful for GX */ + /* (where every glyph could have a different */ + /* number of designs). */ + /* */ + /* num_namedstyles :: The number of named styles; only meaningful for */ + /* GX which allows certain design coordinates to */ + /* have a string ID (in the `name' table) */ + /* associated with them. The font can tell the */ + /* user that, for example, Weight=1.5 is `Bold'. */ + /* */ + /* axis :: A table of axis descriptors. */ + /* GX fonts contain slightly more data than MM. */ + /* */ + /* namedstyles :: A table of named styles. */ + /* Only meaningful with GX. */ + /* */ + typedef struct FT_MM_Var_ + { + FT_UInt num_axis; + FT_UInt num_designs; + FT_UInt num_namedstyles; + FT_Var_Axis* axis; + FT_Var_Named_Style* namedstyle; + + } FT_MM_Var; + + + /* */ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Multi_Master */ + /* */ + /* <Description> */ + /* Retrieve the Multiple Master descriptor of a given font. */ + /* */ + /* This function can't be used with GX fonts. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face. */ + /* */ + /* <Output> */ + /* amaster :: The Multiple Masters descriptor. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Multi_Master( FT_Face face, + FT_Multi_Master *amaster ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_MM_Var */ + /* */ + /* <Description> */ + /* Retrieve the Multiple Master/GX var descriptor of a given font. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face. */ + /* */ + /* <Output> */ + /* amaster :: The Multiple Masters/GX var descriptor. */ + /* Allocates a data structure, which the user must free */ + /* (a single call to FT_FREE will do it). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_MM_Var( FT_Face face, + FT_MM_Var* *amaster ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_MM_Design_Coordinates */ + /* */ + /* <Description> */ + /* For Multiple Masters fonts, choose an interpolated font design */ + /* through design coordinates. */ + /* */ + /* This function can't be used with GX fonts. */ + /* */ + /* <InOut> */ + /* face :: A handle to the source face. */ + /* */ + /* <Input> */ + /* num_coords :: The number of design coordinates (must be equal to */ + /* the number of axes in the font). */ + /* */ + /* coords :: An array of design coordinates. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_MM_Design_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Long* coords ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Var_Design_Coordinates */ + /* */ + /* <Description> */ + /* For Multiple Master or GX Var fonts, choose an interpolated font */ + /* design through design coordinates. */ + /* */ + /* <InOut> */ + /* face :: A handle to the source face. */ + /* */ + /* <Input> */ + /* num_coords :: The number of design coordinates (must be equal to */ + /* the number of axes in the font). */ + /* */ + /* coords :: An array of design coordinates. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_Var_Design_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_MM_Blend_Coordinates */ + /* */ + /* <Description> */ + /* For Multiple Masters and GX var fonts, choose an interpolated font */ + /* design through normalized blend coordinates. */ + /* */ + /* <InOut> */ + /* face :: A handle to the source face. */ + /* */ + /* <Input> */ + /* num_coords :: The number of design coordinates (must be equal to */ + /* the number of axes in the font). */ + /* */ + /* coords :: The design coordinates array (each element must be */ + /* between 0 and 1.0). */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_MM_Blend_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Var_Blend_Coordinates */ + /* */ + /* <Description> */ + /* This is another name of @FT_Set_MM_Blend_Coordinates. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_Var_Blend_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTMM_H__ */ + + +/* END */ diff --git a/include/freetype/ftmodapi.h b/include/freetype/ftmodapi.h new file mode 100644 index 0000000..8f2e017 --- /dev/null +++ b/include/freetype/ftmodapi.h @@ -0,0 +1,483 @@ +/***************************************************************************/ +/* */ +/* ftmodapi.h */ +/* */ +/* FreeType modules public interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2006, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTMODAPI_H__ +#define __FTMODAPI_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* module_management */ + /* */ + /* <Title> */ + /* Module Management */ + /* */ + /* <Abstract> */ + /* How to add, upgrade, and remove modules from FreeType. */ + /* */ + /* <Description> */ + /* The definitions below are used to manage modules within FreeType. */ + /* Modules can be added, upgraded, and removed at runtime. */ + /* */ + /*************************************************************************/ + + + /* module bit flags */ +#define FT_MODULE_FONT_DRIVER 1 /* this module is a font driver */ +#define FT_MODULE_RENDERER 2 /* this module is a renderer */ +#define FT_MODULE_HINTER 4 /* this module is a glyph hinter */ +#define FT_MODULE_STYLER 8 /* this module is a styler */ + +#define FT_MODULE_DRIVER_SCALABLE 0x100 /* the driver supports */ + /* scalable fonts */ +#define FT_MODULE_DRIVER_NO_OUTLINES 0x200 /* the driver does not */ + /* support vector outlines */ +#define FT_MODULE_DRIVER_HAS_HINTER 0x400 /* the driver provides its */ + /* own hinter */ + + + /* deprecated values */ +#define ft_module_font_driver FT_MODULE_FONT_DRIVER +#define ft_module_renderer FT_MODULE_RENDERER +#define ft_module_hinter FT_MODULE_HINTER +#define ft_module_styler FT_MODULE_STYLER + +#define ft_module_driver_scalable FT_MODULE_DRIVER_SCALABLE +#define ft_module_driver_no_outlines FT_MODULE_DRIVER_NO_OUTLINES +#define ft_module_driver_has_hinter FT_MODULE_DRIVER_HAS_HINTER + + + typedef FT_Pointer FT_Module_Interface; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Module_Constructor */ + /* */ + /* <Description> */ + /* A function used to initialize (not create) a new module object. */ + /* */ + /* <Input> */ + /* module :: The module to initialize. */ + /* */ + typedef FT_Error + (*FT_Module_Constructor)( FT_Module module ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Module_Destructor */ + /* */ + /* <Description> */ + /* A function used to finalize (not destroy) a given module object. */ + /* */ + /* <Input> */ + /* module :: The module to finalize. */ + /* */ + typedef void + (*FT_Module_Destructor)( FT_Module module ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Module_Requester */ + /* */ + /* <Description> */ + /* A function used to query a given module for a specific interface. */ + /* */ + /* <Input> */ + /* module :: The module to finalize. */ + /* */ + /* name :: The name of the interface in the module. */ + /* */ + typedef FT_Module_Interface + (*FT_Module_Requester)( FT_Module module, + const char* name ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Module_Class */ + /* */ + /* <Description> */ + /* The module class descriptor. */ + /* */ + /* <Fields> */ + /* module_flags :: Bit flags describing the module. */ + /* */ + /* module_size :: The size of one module object/instance in */ + /* bytes. */ + /* */ + /* module_name :: The name of the module. */ + /* */ + /* module_version :: The version, as a 16.16 fixed number */ + /* (major.minor). */ + /* */ + /* module_requires :: The version of FreeType this module requires, */ + /* as a 16.16 fixed number (major.minor). Starts */ + /* at version 2.0, i.e., 0x20000. */ + /* */ + /* module_init :: The initializing function. */ + /* */ + /* module_done :: The finalizing function. */ + /* */ + /* get_interface :: The interface requesting function. */ + /* */ + typedef struct FT_Module_Class_ + { + FT_ULong module_flags; + FT_Long module_size; + const FT_String* module_name; + FT_Fixed module_version; + FT_Fixed module_requires; + + const void* module_interface; + + FT_Module_Constructor module_init; + FT_Module_Destructor module_done; + FT_Module_Requester get_interface; + + } FT_Module_Class; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Add_Module */ + /* */ + /* <Description> */ + /* Add a new module to a given library instance. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library object. */ + /* */ + /* <Input> */ + /* clazz :: A pointer to class descriptor for the module. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* An error will be returned if a module already exists by that name, */ + /* or if the module requires a version of FreeType that is too great. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Add_Module( FT_Library library, + const FT_Module_Class* clazz ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Module */ + /* */ + /* <Description> */ + /* Find a module by its name. */ + /* */ + /* <Input> */ + /* library :: A handle to the library object. */ + /* */ + /* module_name :: The module's name (as an ASCII string). */ + /* */ + /* <Return> */ + /* A module handle. 0~if none was found. */ + /* */ + /* <Note> */ + /* FreeType's internal modules aren't documented very well, and you */ + /* should look up the source code for details. */ + /* */ + FT_EXPORT( FT_Module ) + FT_Get_Module( FT_Library library, + const char* module_name ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Remove_Module */ + /* */ + /* <Description> */ + /* Remove a given module from a library instance. */ + /* */ + /* <InOut> */ + /* library :: A handle to a library object. */ + /* */ + /* <Input> */ + /* module :: A handle to a module object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The module object is destroyed by the function in case of success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Remove_Module( FT_Library library, + FT_Module module ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Reference_Library */ + /* */ + /* <Description> */ + /* A counter gets initialized to~1 at the time an @FT_Library */ + /* structure is created. This function increments the counter. */ + /* @FT_Done_Library then only destroys a library if the counter is~1, */ + /* otherwise it simply decrements the counter. */ + /* */ + /* This function helps in managing life-cycles of structures which */ + /* reference @FT_Library objects. */ + /* */ + /* <Input> */ + /* library :: A handle to a target library object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Since> */ + /* 2.4.2 */ + /* */ + FT_EXPORT( FT_Error ) + FT_Reference_Library( FT_Library library ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Library */ + /* */ + /* <Description> */ + /* This function is used to create a new FreeType library instance */ + /* from a given memory object. It is thus possible to use libraries */ + /* with distinct memory allocators within the same program. */ + /* */ + /* Normally, you would call this function (followed by a call to */ + /* @FT_Add_Default_Modules or a series of calls to @FT_Add_Module) */ + /* instead of @FT_Init_FreeType to initialize the FreeType library. */ + /* */ + /* Don't use @FT_Done_FreeType but @FT_Done_Library to destroy a */ + /* library instance. */ + /* */ + /* <Input> */ + /* memory :: A handle to the original memory object. */ + /* */ + /* <Output> */ + /* alibrary :: A pointer to handle of a new library object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* See the discussion of reference counters in the description of */ + /* @FT_Reference_Library. */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Library( FT_Memory memory, + FT_Library *alibrary ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_Library */ + /* */ + /* <Description> */ + /* Discard a given library object. This closes all drivers and */ + /* discards all resource objects. */ + /* */ + /* <Input> */ + /* library :: A handle to the target library. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* See the discussion of reference counters in the description of */ + /* @FT_Reference_Library. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Done_Library( FT_Library library ); + +/* */ + + typedef void + (*FT_DebugHook_Func)( void* arg ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Debug_Hook */ + /* */ + /* <Description> */ + /* Set a debug hook function for debugging the interpreter of a font */ + /* format. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library object. */ + /* */ + /* <Input> */ + /* hook_index :: The index of the debug hook. You should use the */ + /* values defined in `ftobjs.h', e.g., */ + /* `FT_DEBUG_HOOK_TRUETYPE'. */ + /* */ + /* debug_hook :: The function used to debug the interpreter. */ + /* */ + /* <Note> */ + /* Currently, four debug hook slots are available, but only two (for */ + /* the TrueType and the Type~1 interpreter) are defined. */ + /* */ + /* Since the internal headers of FreeType are no longer installed, */ + /* the symbol `FT_DEBUG_HOOK_TRUETYPE' isn't available publicly. */ + /* This is a bug and will be fixed in a forthcoming release. */ + /* */ + FT_EXPORT( void ) + FT_Set_Debug_Hook( FT_Library library, + FT_UInt hook_index, + FT_DebugHook_Func debug_hook ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Add_Default_Modules */ + /* */ + /* <Description> */ + /* Add the set of default drivers to a given library object. */ + /* This is only useful when you create a library object with */ + /* @FT_New_Library (usually to plug a custom memory manager). */ + /* */ + /* <InOut> */ + /* library :: A handle to a new library object. */ + /* */ + FT_EXPORT( void ) + FT_Add_Default_Modules( FT_Library library ); + + + + /************************************************************************** + * + * @section: + * truetype_engine + * + * @title: + * The TrueType Engine + * + * @abstract: + * TrueType bytecode support. + * + * @description: + * This section contains a function used to query the level of TrueType + * bytecode support compiled in this version of the library. + * + */ + + + /************************************************************************** + * + * @enum: + * FT_TrueTypeEngineType + * + * @description: + * A list of values describing which kind of TrueType bytecode + * engine is implemented in a given FT_Library instance. It is used + * by the @FT_Get_TrueType_Engine_Type function. + * + * @values: + * FT_TRUETYPE_ENGINE_TYPE_NONE :: + * The library doesn't implement any kind of bytecode interpreter. + * + * FT_TRUETYPE_ENGINE_TYPE_UNPATENTED :: + * The library implements a bytecode interpreter that doesn't + * support the patented operations of the TrueType virtual machine. + * + * Its main use is to load certain Asian fonts which position and + * scale glyph components with bytecode instructions. It produces + * bad output for most other fonts. + * + * FT_TRUETYPE_ENGINE_TYPE_PATENTED :: + * The library implements a bytecode interpreter that covers + * the full instruction set of the TrueType virtual machine (this + * was governed by patents until May 2010, hence the name). + * + * @since: + * 2.2 + * + */ + typedef enum FT_TrueTypeEngineType_ + { + FT_TRUETYPE_ENGINE_TYPE_NONE = 0, + FT_TRUETYPE_ENGINE_TYPE_UNPATENTED, + FT_TRUETYPE_ENGINE_TYPE_PATENTED + + } FT_TrueTypeEngineType; + + + /************************************************************************** + * + * @func: + * FT_Get_TrueType_Engine_Type + * + * @description: + * Return an @FT_TrueTypeEngineType value to indicate which level of + * the TrueType virtual machine a given library instance supports. + * + * @input: + * library :: + * A library instance. + * + * @return: + * A value indicating which level is supported. + * + * @since: + * 2.2 + * + */ + FT_EXPORT( FT_TrueTypeEngineType ) + FT_Get_TrueType_Engine_Type( FT_Library library ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTMODAPI_H__ */ + + +/* END */ diff --git a/include/freetype/ftmoderr.h b/include/freetype/ftmoderr.h new file mode 100644 index 0000000..1bf3b38 --- /dev/null +++ b/include/freetype/ftmoderr.h @@ -0,0 +1,156 @@ +/***************************************************************************/ +/* */ +/* ftmoderr.h */ +/* */ +/* FreeType module error offsets (specification). */ +/* */ +/* Copyright 2001, 2002, 2003, 2004, 2005, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the FreeType module error offsets. */ + /* */ + /* The lower byte gives the error code, the higher byte gives the */ + /* module. The base module has error offset 0. For example, the error */ + /* `FT_Err_Invalid_File_Format' has value 0x003, the error */ + /* `TT_Err_Invalid_File_Format' has value 0x1103, the error */ + /* `T1_Err_Invalid_File_Format' has value 0x1203, etc. */ + /* */ + /* Undefine the macro FT_CONFIG_OPTION_USE_MODULE_ERRORS in ftoption.h */ + /* to make the higher byte always zero (disabling the module error */ + /* mechanism). */ + /* */ + /* It can also be used to create a module error message table easily */ + /* with something like */ + /* */ + /* { */ + /* #undef __FTMODERR_H__ */ + /* #define FT_MODERRDEF( e, v, s ) { FT_Mod_Err_ ## e, s }, */ + /* #define FT_MODERR_START_LIST { */ + /* #define FT_MODERR_END_LIST { 0, 0 } }; */ + /* */ + /* const struct */ + /* { */ + /* int mod_err_offset; */ + /* const char* mod_err_msg */ + /* } ft_mod_errors[] = */ + /* */ + /* #include FT_MODULE_ERRORS_H */ + /* } */ + /* */ + /* To use such a table, all errors must be ANDed with 0xFF00 to remove */ + /* the error code. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTMODERR_H__ +#define __FTMODERR_H__ + + + /*******************************************************************/ + /*******************************************************************/ + /***** *****/ + /***** SETUP MACROS *****/ + /***** *****/ + /*******************************************************************/ + /*******************************************************************/ + + +#undef FT_NEED_EXTERN_C + +#ifndef FT_MODERRDEF + +#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS +#define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = v, +#else +#define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = 0, +#endif + +#define FT_MODERR_START_LIST enum { +#define FT_MODERR_END_LIST FT_Mod_Err_Max }; + +#ifdef __cplusplus +#define FT_NEED_EXTERN_C + extern "C" { +#endif + +#endif /* !FT_MODERRDEF */ + + + /*******************************************************************/ + /*******************************************************************/ + /***** *****/ + /***** LIST MODULE ERROR BASES *****/ + /***** *****/ + /*******************************************************************/ + /*******************************************************************/ + + +#ifdef FT_MODERR_START_LIST + FT_MODERR_START_LIST +#endif + + + FT_MODERRDEF( Base, 0x000, "base module" ) + FT_MODERRDEF( Autofit, 0x100, "autofitter module" ) + FT_MODERRDEF( BDF, 0x200, "BDF module" ) + FT_MODERRDEF( Bzip2, 0x300, "Bzip2 module" ) + FT_MODERRDEF( Cache, 0x400, "cache module" ) + FT_MODERRDEF( CFF, 0x500, "CFF module" ) + FT_MODERRDEF( CID, 0x600, "CID module" ) + FT_MODERRDEF( Gzip, 0x700, "Gzip module" ) + FT_MODERRDEF( LZW, 0x800, "LZW module" ) + FT_MODERRDEF( OTvalid, 0x900, "OpenType validation module" ) + FT_MODERRDEF( PCF, 0xA00, "PCF module" ) + FT_MODERRDEF( PFR, 0xB00, "PFR module" ) + FT_MODERRDEF( PSaux, 0xC00, "PS auxiliary module" ) + FT_MODERRDEF( PShinter, 0xD00, "PS hinter module" ) + FT_MODERRDEF( PSnames, 0xE00, "PS names module" ) + FT_MODERRDEF( Raster, 0xF00, "raster module" ) + FT_MODERRDEF( SFNT, 0x1000, "SFNT module" ) + FT_MODERRDEF( Smooth, 0x1100, "smooth raster module" ) + FT_MODERRDEF( TrueType, 0x1200, "TrueType module" ) + FT_MODERRDEF( Type1, 0x1300, "Type 1 module" ) + FT_MODERRDEF( Type42, 0x1400, "Type 42 module" ) + FT_MODERRDEF( Winfonts, 0x1500, "Windows FON/FNT module" ) + + +#ifdef FT_MODERR_END_LIST + FT_MODERR_END_LIST +#endif + + + /*******************************************************************/ + /*******************************************************************/ + /***** *****/ + /***** CLEANUP *****/ + /***** *****/ + /*******************************************************************/ + /*******************************************************************/ + + +#ifdef FT_NEED_EXTERN_C + } +#endif + +#undef FT_MODERR_START_LIST +#undef FT_MODERR_END_LIST +#undef FT_MODERRDEF +#undef FT_NEED_EXTERN_C + + +#endif /* __FTMODERR_H__ */ + + +/* END */ diff --git a/include/freetype/ftotval.h b/include/freetype/ftotval.h new file mode 100644 index 0000000..027f2e8 --- /dev/null +++ b/include/freetype/ftotval.h @@ -0,0 +1,203 @@ +/***************************************************************************/ +/* */ +/* ftotval.h */ +/* */ +/* FreeType API for validating OpenType tables (specification). */ +/* */ +/* Copyright 2004, 2005, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* */ +/* Warning: This module might be moved to a different library in the */ +/* future to avoid a tight dependency between FreeType and the */ +/* OpenType specification. */ +/* */ +/* */ +/***************************************************************************/ + + +#ifndef __FTOTVAL_H__ +#define __FTOTVAL_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* ot_validation */ + /* */ + /* <Title> */ + /* OpenType Validation */ + /* */ + /* <Abstract> */ + /* An API to validate OpenType tables. */ + /* */ + /* <Description> */ + /* This section contains the declaration of functions to validate */ + /* some OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH). */ + /* */ + /*************************************************************************/ + + + /********************************************************************** + * + * @enum: + * FT_VALIDATE_OTXXX + * + * @description: + * A list of bit-field constants used with @FT_OpenType_Validate to + * indicate which OpenType tables should be validated. + * + * @values: + * FT_VALIDATE_BASE :: + * Validate BASE table. + * + * FT_VALIDATE_GDEF :: + * Validate GDEF table. + * + * FT_VALIDATE_GPOS :: + * Validate GPOS table. + * + * FT_VALIDATE_GSUB :: + * Validate GSUB table. + * + * FT_VALIDATE_JSTF :: + * Validate JSTF table. + * + * FT_VALIDATE_MATH :: + * Validate MATH table. + * + * FT_VALIDATE_OT :: + * Validate all OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH). + * + */ +#define FT_VALIDATE_BASE 0x0100 +#define FT_VALIDATE_GDEF 0x0200 +#define FT_VALIDATE_GPOS 0x0400 +#define FT_VALIDATE_GSUB 0x0800 +#define FT_VALIDATE_JSTF 0x1000 +#define FT_VALIDATE_MATH 0x2000 + +#define FT_VALIDATE_OT FT_VALIDATE_BASE | \ + FT_VALIDATE_GDEF | \ + FT_VALIDATE_GPOS | \ + FT_VALIDATE_GSUB | \ + FT_VALIDATE_JSTF | \ + FT_VALIDATE_MATH + + /* */ + + /********************************************************************** + * + * @function: + * FT_OpenType_Validate + * + * @description: + * Validate various OpenType tables to assure that all offsets and + * indices are valid. The idea is that a higher-level library which + * actually does the text layout can access those tables without + * error checking (which can be quite time consuming). + * + * @input: + * face :: + * A handle to the input face. + * + * validation_flags :: + * A bit field which specifies the tables to be validated. See + * @FT_VALIDATE_OTXXX for possible values. + * + * @output: + * BASE_table :: + * A pointer to the BASE table. + * + * GDEF_table :: + * A pointer to the GDEF table. + * + * GPOS_table :: + * A pointer to the GPOS table. + * + * GSUB_table :: + * A pointer to the GSUB table. + * + * JSTF_table :: + * A pointer to the JSTF table. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with OpenType fonts, returning an error + * otherwise. + * + * After use, the application should deallocate the five tables with + * @FT_OpenType_Free. A NULL value indicates that the table either + * doesn't exist in the font, or the application hasn't asked for + * validation. + */ + FT_EXPORT( FT_Error ) + FT_OpenType_Validate( FT_Face face, + FT_UInt validation_flags, + FT_Bytes *BASE_table, + FT_Bytes *GDEF_table, + FT_Bytes *GPOS_table, + FT_Bytes *GSUB_table, + FT_Bytes *JSTF_table ); + + /* */ + + /********************************************************************** + * + * @function: + * FT_OpenType_Free + * + * @description: + * Free the buffer allocated by OpenType validator. + * + * @input: + * face :: + * A handle to the input face. + * + * table :: + * The pointer to the buffer that is allocated by + * @FT_OpenType_Validate. + * + * @note: + * This function must be used to free the buffer allocated by + * @FT_OpenType_Validate only. + */ + FT_EXPORT( void ) + FT_OpenType_Free( FT_Face face, + FT_Bytes table ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTOTVAL_H__ */ + + +/* END */ diff --git a/include/freetype/ftoutln.h b/include/freetype/ftoutln.h new file mode 100644 index 0000000..1cf3c3f --- /dev/null +++ b/include/freetype/ftoutln.h @@ -0,0 +1,540 @@ +/***************************************************************************/ +/* */ +/* ftoutln.h */ +/* */ +/* Support for the FT_Outline type used to store glyph shapes of */ +/* most scalable font formats (specification). */ +/* */ +/* Copyright 1996-2003, 2005-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTOUTLN_H__ +#define __FTOUTLN_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* outline_processing */ + /* */ + /* <Title> */ + /* Outline Processing */ + /* */ + /* <Abstract> */ + /* Functions to create, transform, and render vectorial glyph images. */ + /* */ + /* <Description> */ + /* This section contains routines used to create and destroy scalable */ + /* glyph images known as `outlines'. These can also be measured, */ + /* transformed, and converted into bitmaps and pixmaps. */ + /* */ + /* <Order> */ + /* FT_Outline */ + /* FT_OUTLINE_FLAGS */ + /* FT_Outline_New */ + /* FT_Outline_Done */ + /* FT_Outline_Copy */ + /* FT_Outline_Translate */ + /* FT_Outline_Transform */ + /* FT_Outline_Embolden */ + /* FT_Outline_Reverse */ + /* FT_Outline_Check */ + /* */ + /* FT_Outline_Get_CBox */ + /* FT_Outline_Get_BBox */ + /* */ + /* FT_Outline_Get_Bitmap */ + /* FT_Outline_Render */ + /* */ + /* FT_Outline_Decompose */ + /* FT_Outline_Funcs */ + /* FT_Outline_MoveTo_Func */ + /* FT_Outline_LineTo_Func */ + /* FT_Outline_ConicTo_Func */ + /* FT_Outline_CubicTo_Func */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Decompose */ + /* */ + /* <Description> */ + /* Walk over an outline's structure to decompose it into individual */ + /* segments and Bézier arcs. This function also emits `move to' */ + /* operations to indicate the start of new contours in the outline. */ + /* */ + /* <Input> */ + /* outline :: A pointer to the source target. */ + /* */ + /* func_interface :: A table of `emitters', i.e., function pointers */ + /* called during decomposition to indicate path */ + /* operations. */ + /* */ + /* <InOut> */ + /* user :: A typeless pointer which is passed to each */ + /* emitter during the decomposition. It can be */ + /* used to store the state during the */ + /* decomposition. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Decompose( FT_Outline* outline, + const FT_Outline_Funcs* func_interface, + void* user ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_New */ + /* */ + /* <Description> */ + /* Create a new outline of a given size. */ + /* */ + /* <Input> */ + /* library :: A handle to the library object from where the */ + /* outline is allocated. Note however that the new */ + /* outline will *not* necessarily be *freed*, when */ + /* destroying the library, by @FT_Done_FreeType. */ + /* */ + /* numPoints :: The maximal number of points within the outline. */ + /* */ + /* numContours :: The maximal number of contours within the outline. */ + /* */ + /* <Output> */ + /* anoutline :: A handle to the new outline. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The reason why this function takes a `library' parameter is simply */ + /* to use the library's memory allocator. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_New( FT_Library library, + FT_UInt numPoints, + FT_Int numContours, + FT_Outline *anoutline ); + + + FT_EXPORT( FT_Error ) + FT_Outline_New_Internal( FT_Memory memory, + FT_UInt numPoints, + FT_Int numContours, + FT_Outline *anoutline ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Done */ + /* */ + /* <Description> */ + /* Destroy an outline created with @FT_Outline_New. */ + /* */ + /* <Input> */ + /* library :: A handle of the library object used to allocate the */ + /* outline. */ + /* */ + /* outline :: A pointer to the outline object to be discarded. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* If the outline's `owner' field is not set, only the outline */ + /* descriptor will be released. */ + /* */ + /* The reason why this function takes an `library' parameter is */ + /* simply to use ft_mem_free(). */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Done( FT_Library library, + FT_Outline* outline ); + + + FT_EXPORT( FT_Error ) + FT_Outline_Done_Internal( FT_Memory memory, + FT_Outline* outline ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Check */ + /* */ + /* <Description> */ + /* Check the contents of an outline descriptor. */ + /* */ + /* <Input> */ + /* outline :: A handle to a source outline. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Check( FT_Outline* outline ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Get_CBox */ + /* */ + /* <Description> */ + /* Return an outline's `control box'. The control box encloses all */ + /* the outline's points, including Bézier control points. Though it */ + /* coincides with the exact bounding box for most glyphs, it can be */ + /* slightly larger in some situations (like when rotating an outline */ + /* which contains Bézier outside arcs). */ + /* */ + /* Computing the control box is very fast, while getting the bounding */ + /* box can take much more time as it needs to walk over all segments */ + /* and arcs in the outline. To get the latter, you can use the */ + /* `ftbbox' component which is dedicated to this single task. */ + /* */ + /* <Input> */ + /* outline :: A pointer to the source outline descriptor. */ + /* */ + /* <Output> */ + /* acbox :: The outline's control box. */ + /* */ + /* <Note> */ + /* See @FT_Glyph_Get_CBox for a discussion of tricky fonts. */ + /* */ + FT_EXPORT( void ) + FT_Outline_Get_CBox( const FT_Outline* outline, + FT_BBox *acbox ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Translate */ + /* */ + /* <Description> */ + /* Apply a simple translation to the points of an outline. */ + /* */ + /* <InOut> */ + /* outline :: A pointer to the target outline descriptor. */ + /* */ + /* <Input> */ + /* xOffset :: The horizontal offset. */ + /* */ + /* yOffset :: The vertical offset. */ + /* */ + FT_EXPORT( void ) + FT_Outline_Translate( const FT_Outline* outline, + FT_Pos xOffset, + FT_Pos yOffset ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Copy */ + /* */ + /* <Description> */ + /* Copy an outline into another one. Both objects must have the */ + /* same sizes (number of points & number of contours) when this */ + /* function is called. */ + /* */ + /* <Input> */ + /* source :: A handle to the source outline. */ + /* */ + /* <Output> */ + /* target :: A handle to the target outline. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Copy( const FT_Outline* source, + FT_Outline *target ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Transform */ + /* */ + /* <Description> */ + /* Apply a simple 2x2 matrix to all of an outline's points. Useful */ + /* for applying rotations, slanting, flipping, etc. */ + /* */ + /* <InOut> */ + /* outline :: A pointer to the target outline descriptor. */ + /* */ + /* <Input> */ + /* matrix :: A pointer to the transformation matrix. */ + /* */ + /* <Note> */ + /* You can use @FT_Outline_Translate if you need to translate the */ + /* outline's points. */ + /* */ + FT_EXPORT( void ) + FT_Outline_Transform( const FT_Outline* outline, + const FT_Matrix* matrix ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Embolden */ + /* */ + /* <Description> */ + /* Embolden an outline. The new outline will be at most 4~times */ + /* `strength' pixels wider and higher. You may think of the left and */ + /* bottom borders as unchanged. */ + /* */ + /* Negative `strength' values to reduce the outline thickness are */ + /* possible also. */ + /* */ + /* <InOut> */ + /* outline :: A handle to the target outline. */ + /* */ + /* <Input> */ + /* strength :: How strong the glyph is emboldened. Expressed in */ + /* 26.6 pixel format. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The used algorithm to increase or decrease the thickness of the */ + /* glyph doesn't change the number of points; this means that certain */ + /* situations like acute angles or intersections are sometimes */ + /* handled incorrectly. */ + /* */ + /* If you need `better' metrics values you should call */ + /* @FT_Outline_Get_CBox or @FT_Outline_Get_BBox. */ + /* */ + /* Example call: */ + /* */ + /* { */ + /* FT_Load_Glyph( face, index, FT_LOAD_DEFAULT ); */ + /* if ( face->slot->format == FT_GLYPH_FORMAT_OUTLINE ) */ + /* FT_Outline_Embolden( &face->slot->outline, strength ); */ + /* } */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Embolden( FT_Outline* outline, + FT_Pos strength ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Reverse */ + /* */ + /* <Description> */ + /* Reverse the drawing direction of an outline. This is used to */ + /* ensure consistent fill conventions for mirrored glyphs. */ + /* */ + /* <InOut> */ + /* outline :: A pointer to the target outline descriptor. */ + /* */ + /* <Note> */ + /* This function toggles the bit flag @FT_OUTLINE_REVERSE_FILL in */ + /* the outline's `flags' field. */ + /* */ + /* It shouldn't be used by a normal client application, unless it */ + /* knows what it is doing. */ + /* */ + FT_EXPORT( void ) + FT_Outline_Reverse( FT_Outline* outline ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Get_Bitmap */ + /* */ + /* <Description> */ + /* Render an outline within a bitmap. The outline's image is simply */ + /* OR-ed to the target bitmap. */ + /* */ + /* <Input> */ + /* library :: A handle to a FreeType library object. */ + /* */ + /* outline :: A pointer to the source outline descriptor. */ + /* */ + /* <InOut> */ + /* abitmap :: A pointer to the target bitmap descriptor. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* This function does NOT CREATE the bitmap, it only renders an */ + /* outline image within the one you pass to it! Consequently, the */ + /* various fields in `abitmap' should be set accordingly. */ + /* */ + /* It will use the raster corresponding to the default glyph format. */ + /* */ + /* The value of the `num_grays' field in `abitmap' is ignored. If */ + /* you select the gray-level rasterizer, and you want less than 256 */ + /* gray levels, you have to use @FT_Outline_Render directly. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Get_Bitmap( FT_Library library, + FT_Outline* outline, + const FT_Bitmap *abitmap ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Render */ + /* */ + /* <Description> */ + /* Render an outline within a bitmap using the current scan-convert. */ + /* This function uses an @FT_Raster_Params structure as an argument, */ + /* allowing advanced features like direct composition, translucency, */ + /* etc. */ + /* */ + /* <Input> */ + /* library :: A handle to a FreeType library object. */ + /* */ + /* outline :: A pointer to the source outline descriptor. */ + /* */ + /* <InOut> */ + /* params :: A pointer to an @FT_Raster_Params structure used to */ + /* describe the rendering operation. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* You should know what you are doing and how @FT_Raster_Params works */ + /* to use this function. */ + /* */ + /* The field `params.source' will be set to `outline' before the scan */ + /* converter is called, which means that the value you give to it is */ + /* actually ignored. */ + /* */ + /* The gray-level rasterizer always uses 256 gray levels. If you */ + /* want less gray levels, you have to provide your own span callback. */ + /* See the @FT_RASTER_FLAG_DIRECT value of the `flags' field in the */ + /* @FT_Raster_Params structure for more details. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Outline_Render( FT_Library library, + FT_Outline* outline, + FT_Raster_Params* params ); + + + /************************************************************************** + * + * @enum: + * FT_Orientation + * + * @description: + * A list of values used to describe an outline's contour orientation. + * + * The TrueType and PostScript specifications use different conventions + * to determine whether outline contours should be filled or unfilled. + * + * @values: + * FT_ORIENTATION_TRUETYPE :: + * According to the TrueType specification, clockwise contours must + * be filled, and counter-clockwise ones must be unfilled. + * + * FT_ORIENTATION_POSTSCRIPT :: + * According to the PostScript specification, counter-clockwise contours + * must be filled, and clockwise ones must be unfilled. + * + * FT_ORIENTATION_FILL_RIGHT :: + * This is identical to @FT_ORIENTATION_TRUETYPE, but is used to + * remember that in TrueType, everything that is to the right of + * the drawing direction of a contour must be filled. + * + * FT_ORIENTATION_FILL_LEFT :: + * This is identical to @FT_ORIENTATION_POSTSCRIPT, but is used to + * remember that in PostScript, everything that is to the left of + * the drawing direction of a contour must be filled. + * + * FT_ORIENTATION_NONE :: + * The orientation cannot be determined. That is, different parts of + * the glyph have different orientation. + * + */ + typedef enum FT_Orientation_ + { + FT_ORIENTATION_TRUETYPE = 0, + FT_ORIENTATION_POSTSCRIPT = 1, + FT_ORIENTATION_FILL_RIGHT = FT_ORIENTATION_TRUETYPE, + FT_ORIENTATION_FILL_LEFT = FT_ORIENTATION_POSTSCRIPT, + FT_ORIENTATION_NONE + + } FT_Orientation; + + + /************************************************************************** + * + * @function: + * FT_Outline_Get_Orientation + * + * @description: + * This function analyzes a glyph outline and tries to compute its + * fill orientation (see @FT_Orientation). This is done by computing + * the direction of each global horizontal and/or vertical extrema + * within the outline. + * + * Note that this will return @FT_ORIENTATION_TRUETYPE for empty + * outlines. + * + * @input: + * outline :: + * A handle to the source outline. + * + * @return: + * The orientation. + * + */ + FT_EXPORT( FT_Orientation ) + FT_Outline_Get_Orientation( FT_Outline* outline ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTOUTLN_H__ */ + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/include/freetype/ftpfr.h b/include/freetype/ftpfr.h new file mode 100644 index 0000000..0b7b7d4 --- /dev/null +++ b/include/freetype/ftpfr.h @@ -0,0 +1,172 @@ +/***************************************************************************/ +/* */ +/* ftpfr.h */ +/* */ +/* FreeType API for accessing PFR-specific data (specification only). */ +/* */ +/* Copyright 2002, 2003, 2004, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTPFR_H__ +#define __FTPFR_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* pfr_fonts */ + /* */ + /* <Title> */ + /* PFR Fonts */ + /* */ + /* <Abstract> */ + /* PFR/TrueDoc specific API. */ + /* */ + /* <Description> */ + /* This section contains the declaration of PFR-specific functions. */ + /* */ + /*************************************************************************/ + + + /********************************************************************** + * + * @function: + * FT_Get_PFR_Metrics + * + * @description: + * Return the outline and metrics resolutions of a given PFR face. + * + * @input: + * face :: Handle to the input face. It can be a non-PFR face. + * + * @output: + * aoutline_resolution :: + * Outline resolution. This is equivalent to `face->units_per_EM' + * for non-PFR fonts. Optional (parameter can be NULL). + * + * ametrics_resolution :: + * Metrics resolution. This is equivalent to `outline_resolution' + * for non-PFR fonts. Optional (parameter can be NULL). + * + * ametrics_x_scale :: + * A 16.16 fixed-point number used to scale distance expressed + * in metrics units to device sub-pixels. This is equivalent to + * `face->size->x_scale', but for metrics only. Optional (parameter + * can be NULL). + * + * ametrics_y_scale :: + * Same as `ametrics_x_scale' but for the vertical direction. + * optional (parameter can be NULL). + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * If the input face is not a PFR, this function will return an error. + * However, in all cases, it will return valid values. + */ + FT_EXPORT( FT_Error ) + FT_Get_PFR_Metrics( FT_Face face, + FT_UInt *aoutline_resolution, + FT_UInt *ametrics_resolution, + FT_Fixed *ametrics_x_scale, + FT_Fixed *ametrics_y_scale ); + + + /********************************************************************** + * + * @function: + * FT_Get_PFR_Kerning + * + * @description: + * Return the kerning pair corresponding to two glyphs in a PFR face. + * The distance is expressed in metrics units, unlike the result of + * @FT_Get_Kerning. + * + * @input: + * face :: A handle to the input face. + * + * left :: Index of the left glyph. + * + * right :: Index of the right glyph. + * + * @output: + * avector :: A kerning vector. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function always return distances in original PFR metrics + * units. This is unlike @FT_Get_Kerning with the @FT_KERNING_UNSCALED + * mode, which always returns distances converted to outline units. + * + * You can use the value of the `x_scale' and `y_scale' parameters + * returned by @FT_Get_PFR_Metrics to scale these to device sub-pixels. + */ + FT_EXPORT( FT_Error ) + FT_Get_PFR_Kerning( FT_Face face, + FT_UInt left, + FT_UInt right, + FT_Vector *avector ); + + + /********************************************************************** + * + * @function: + * FT_Get_PFR_Advance + * + * @description: + * Return a given glyph advance, expressed in original metrics units, + * from a PFR font. + * + * @input: + * face :: A handle to the input face. + * + * gindex :: The glyph index. + * + * @output: + * aadvance :: The glyph advance in metrics units. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * You can use the `x_scale' or `y_scale' results of @FT_Get_PFR_Metrics + * to convert the advance to device sub-pixels (i.e., 1/64th of pixels). + */ + FT_EXPORT( FT_Error ) + FT_Get_PFR_Advance( FT_Face face, + FT_UInt gindex, + FT_Pos *aadvance ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTPFR_H__ */ + + +/* END */ diff --git a/include/freetype/ftrender.h b/include/freetype/ftrender.h new file mode 100644 index 0000000..dd0229b --- /dev/null +++ b/include/freetype/ftrender.h @@ -0,0 +1,238 @@ +/***************************************************************************/ +/* */ +/* ftrender.h */ +/* */ +/* FreeType renderer modules public interface (specification). */ +/* */ +/* Copyright 1996-2001, 2005, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTRENDER_H__ +#define __FTRENDER_H__ + + +#include <ft2build.h> +#include FT_MODULE_H +#include FT_GLYPH_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* module_management */ + /* */ + /*************************************************************************/ + + + /* create a new glyph object */ + typedef FT_Error + (*FT_Glyph_InitFunc)( FT_Glyph glyph, + FT_GlyphSlot slot ); + + /* destroys a given glyph object */ + typedef void + (*FT_Glyph_DoneFunc)( FT_Glyph glyph ); + + typedef void + (*FT_Glyph_TransformFunc)( FT_Glyph glyph, + const FT_Matrix* matrix, + const FT_Vector* delta ); + + typedef void + (*FT_Glyph_GetBBoxFunc)( FT_Glyph glyph, + FT_BBox* abbox ); + + typedef FT_Error + (*FT_Glyph_CopyFunc)( FT_Glyph source, + FT_Glyph target ); + + typedef FT_Error + (*FT_Glyph_PrepareFunc)( FT_Glyph glyph, + FT_GlyphSlot slot ); + +/* deprecated */ +#define FT_Glyph_Init_Func FT_Glyph_InitFunc +#define FT_Glyph_Done_Func FT_Glyph_DoneFunc +#define FT_Glyph_Transform_Func FT_Glyph_TransformFunc +#define FT_Glyph_BBox_Func FT_Glyph_GetBBoxFunc +#define FT_Glyph_Copy_Func FT_Glyph_CopyFunc +#define FT_Glyph_Prepare_Func FT_Glyph_PrepareFunc + + + struct FT_Glyph_Class_ + { + FT_Long glyph_size; + FT_Glyph_Format glyph_format; + FT_Glyph_InitFunc glyph_init; + FT_Glyph_DoneFunc glyph_done; + FT_Glyph_CopyFunc glyph_copy; + FT_Glyph_TransformFunc glyph_transform; + FT_Glyph_GetBBoxFunc glyph_bbox; + FT_Glyph_PrepareFunc glyph_prepare; + }; + + + typedef FT_Error + (*FT_Renderer_RenderFunc)( FT_Renderer renderer, + FT_GlyphSlot slot, + FT_UInt mode, + const FT_Vector* origin ); + + typedef FT_Error + (*FT_Renderer_TransformFunc)( FT_Renderer renderer, + FT_GlyphSlot slot, + const FT_Matrix* matrix, + const FT_Vector* delta ); + + + typedef void + (*FT_Renderer_GetCBoxFunc)( FT_Renderer renderer, + FT_GlyphSlot slot, + FT_BBox* cbox ); + + + typedef FT_Error + (*FT_Renderer_SetModeFunc)( FT_Renderer renderer, + FT_ULong mode_tag, + FT_Pointer mode_ptr ); + +/* deprecated identifiers */ +#define FTRenderer_render FT_Renderer_RenderFunc +#define FTRenderer_transform FT_Renderer_TransformFunc +#define FTRenderer_getCBox FT_Renderer_GetCBoxFunc +#define FTRenderer_setMode FT_Renderer_SetModeFunc + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Renderer_Class */ + /* */ + /* <Description> */ + /* The renderer module class descriptor. */ + /* */ + /* <Fields> */ + /* root :: The root @FT_Module_Class fields. */ + /* */ + /* glyph_format :: The glyph image format this renderer handles. */ + /* */ + /* render_glyph :: A method used to render the image that is in a */ + /* given glyph slot into a bitmap. */ + /* */ + /* transform_glyph :: A method used to transform the image that is in */ + /* a given glyph slot. */ + /* */ + /* get_glyph_cbox :: A method used to access the glyph's cbox. */ + /* */ + /* set_mode :: A method used to pass additional parameters. */ + /* */ + /* raster_class :: For @FT_GLYPH_FORMAT_OUTLINE renderers only. */ + /* This is a pointer to its raster's class. */ + /* */ + typedef struct FT_Renderer_Class_ + { + FT_Module_Class root; + + FT_Glyph_Format glyph_format; + + FT_Renderer_RenderFunc render_glyph; + FT_Renderer_TransformFunc transform_glyph; + FT_Renderer_GetCBoxFunc get_glyph_cbox; + FT_Renderer_SetModeFunc set_mode; + + FT_Raster_Funcs* raster_class; + + } FT_Renderer_Class; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Renderer */ + /* */ + /* <Description> */ + /* Retrieve the current renderer for a given glyph format. */ + /* */ + /* <Input> */ + /* library :: A handle to the library object. */ + /* */ + /* format :: The glyph format. */ + /* */ + /* <Return> */ + /* A renderer handle. 0~if none found. */ + /* */ + /* <Note> */ + /* An error will be returned if a module already exists by that name, */ + /* or if the module requires a version of FreeType that is too great. */ + /* */ + /* To add a new renderer, simply use @FT_Add_Module. To retrieve a */ + /* renderer by its name, use @FT_Get_Module. */ + /* */ + FT_EXPORT( FT_Renderer ) + FT_Get_Renderer( FT_Library library, + FT_Glyph_Format format ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Set_Renderer */ + /* */ + /* <Description> */ + /* Set the current renderer to use, and set additional mode. */ + /* */ + /* <InOut> */ + /* library :: A handle to the library object. */ + /* */ + /* <Input> */ + /* renderer :: A handle to the renderer object. */ + /* */ + /* num_params :: The number of additional parameters. */ + /* */ + /* parameters :: Additional parameters. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* In case of success, the renderer will be used to convert glyph */ + /* images in the renderer's known format into bitmaps. */ + /* */ + /* This doesn't change the current renderer for other formats. */ + /* */ + /* Currently, only the B/W renderer, if compiled with */ + /* FT_RASTER_OPTION_ANTI_ALIASING (providing a 5-levels */ + /* anti-aliasing mode; this option must be set directly in */ + /* `ftraster.c' and is undefined by default) accepts a single tag */ + /* `pal5' to set its gray palette as a character string with */ + /* 5~elements. Consequently, the third and fourth argument are zero */ + /* normally. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Set_Renderer( FT_Library library, + FT_Renderer renderer, + FT_UInt num_params, + FT_Parameter* parameters ); + + + /* */ + + +FT_END_HEADER + +#endif /* __FTRENDER_H__ */ + + +/* END */ diff --git a/include/freetype/ftsizes.h b/include/freetype/ftsizes.h new file mode 100644 index 0000000..3e548cc --- /dev/null +++ b/include/freetype/ftsizes.h @@ -0,0 +1,159 @@ +/***************************************************************************/ +/* */ +/* ftsizes.h */ +/* */ +/* FreeType size objects management (specification). */ +/* */ +/* Copyright 1996-2001, 2003, 2004, 2006, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Typical application would normally not need to use these functions. */ + /* However, they have been placed in a public API for the rare cases */ + /* where they are needed. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTSIZES_H__ +#define __FTSIZES_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* sizes_management */ + /* */ + /* <Title> */ + /* Size Management */ + /* */ + /* <Abstract> */ + /* Managing multiple sizes per face. */ + /* */ + /* <Description> */ + /* When creating a new face object (e.g., with @FT_New_Face), an */ + /* @FT_Size object is automatically created and used to store all */ + /* pixel-size dependent information, available in the `face->size' */ + /* field. */ + /* */ + /* It is however possible to create more sizes for a given face, */ + /* mostly in order to manage several character pixel sizes of the */ + /* same font family and style. See @FT_New_Size and @FT_Done_Size. */ + /* */ + /* Note that @FT_Set_Pixel_Sizes and @FT_Set_Char_Size only */ + /* modify the contents of the current `active' size; you thus need */ + /* to use @FT_Activate_Size to change it. */ + /* */ + /* 99% of applications won't need the functions provided here, */ + /* especially if they use the caching sub-system, so be cautious */ + /* when using these. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Size */ + /* */ + /* <Description> */ + /* Create a new size object from a given face object. */ + /* */ + /* <Input> */ + /* face :: A handle to a parent face object. */ + /* */ + /* <Output> */ + /* asize :: A handle to a new size object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* You need to call @FT_Activate_Size in order to select the new size */ + /* for upcoming calls to @FT_Set_Pixel_Sizes, @FT_Set_Char_Size, */ + /* @FT_Load_Glyph, @FT_Load_Char, etc. */ + /* */ + FT_EXPORT( FT_Error ) + FT_New_Size( FT_Face face, + FT_Size* size ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_Size */ + /* */ + /* <Description> */ + /* Discard a given size object. Note that @FT_Done_Face */ + /* automatically discards all size objects allocated with */ + /* @FT_New_Size. */ + /* */ + /* <Input> */ + /* size :: A handle to a target size object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Done_Size( FT_Size size ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Activate_Size */ + /* */ + /* <Description> */ + /* Even though it is possible to create several size objects for a */ + /* given face (see @FT_New_Size for details), functions like */ + /* @FT_Load_Glyph or @FT_Load_Char only use the one which has been */ + /* activated last to determine the `current character pixel size'. */ + /* */ + /* This function can be used to `activate' a previously created size */ + /* object. */ + /* */ + /* <Input> */ + /* size :: A handle to a target size object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* If `face' is the size's parent face object, this function changes */ + /* the value of `face->size' to the input size handle. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Activate_Size( FT_Size size ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTSIZES_H__ */ + + +/* END */ diff --git a/include/freetype/ftsnames.h b/include/freetype/ftsnames.h new file mode 100644 index 0000000..485e4e1 --- /dev/null +++ b/include/freetype/ftsnames.h @@ -0,0 +1,200 @@ +/***************************************************************************/ +/* */ +/* ftsnames.h */ +/* */ +/* Simple interface to access SFNT name tables (which are used */ +/* to hold font names, copyright info, notices, etc.) (specification). */ +/* */ +/* This is _not_ used to retrieve glyph names! */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2006, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FT_SFNT_NAMES_H__ +#define __FT_SFNT_NAMES_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* sfnt_names */ + /* */ + /* <Title> */ + /* SFNT Names */ + /* */ + /* <Abstract> */ + /* Access the names embedded in TrueType and OpenType files. */ + /* */ + /* <Description> */ + /* The TrueType and OpenType specifications allow the inclusion of */ + /* a special `names table' in font files. This table contains */ + /* textual (and internationalized) information regarding the font, */ + /* like family name, copyright, version, etc. */ + /* */ + /* The definitions below are used to access them if available. */ + /* */ + /* Note that this has nothing to do with glyph names! */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_SfntName */ + /* */ + /* <Description> */ + /* A structure used to model an SFNT `name' table entry. */ + /* */ + /* <Fields> */ + /* platform_id :: The platform ID for `string'. */ + /* */ + /* encoding_id :: The encoding ID for `string'. */ + /* */ + /* language_id :: The language ID for `string'. */ + /* */ + /* name_id :: An identifier for `string'. */ + /* */ + /* string :: The `name' string. Note that its format differs */ + /* depending on the (platform,encoding) pair. It can */ + /* be a Pascal String, a UTF-16 one, etc. */ + /* */ + /* Generally speaking, the string is not */ + /* zero-terminated. Please refer to the TrueType */ + /* specification for details. */ + /* */ + /* string_len :: The length of `string' in bytes. */ + /* */ + /* <Note> */ + /* Possible values for `platform_id', `encoding_id', `language_id', */ + /* and `name_id' are given in the file `ttnameid.h'. For details */ + /* please refer to the TrueType or OpenType specification. */ + /* */ + /* See also @TT_PLATFORM_XXX, @TT_APPLE_ID_XXX, @TT_MAC_ID_XXX, */ + /* @TT_ISO_ID_XXX, and @TT_MS_ID_XXX. */ + /* */ + typedef struct FT_SfntName_ + { + FT_UShort platform_id; + FT_UShort encoding_id; + FT_UShort language_id; + FT_UShort name_id; + + FT_Byte* string; /* this string is *not* null-terminated! */ + FT_UInt string_len; /* in bytes */ + + } FT_SfntName; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Sfnt_Name_Count */ + /* */ + /* <Description> */ + /* Retrieve the number of name strings in the SFNT `name' table. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face. */ + /* */ + /* <Return> */ + /* The number of strings in the `name' table. */ + /* */ + FT_EXPORT( FT_UInt ) + FT_Get_Sfnt_Name_Count( FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Sfnt_Name */ + /* */ + /* <Description> */ + /* Retrieve a string of the SFNT `name' table for a given index. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face. */ + /* */ + /* idx :: The index of the `name' string. */ + /* */ + /* <Output> */ + /* aname :: The indexed @FT_SfntName structure. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + /* <Note> */ + /* The `string' array returned in the `aname' structure is not */ + /* null-terminated. The application should deallocate it if it is no */ + /* longer in use. */ + /* */ + /* Use @FT_Get_Sfnt_Name_Count to get the total number of available */ + /* `name' table entries, then do a loop until you get the right */ + /* platform, encoding, and name ID. */ + /* */ + FT_EXPORT( FT_Error ) + FT_Get_Sfnt_Name( FT_Face face, + FT_UInt idx, + FT_SfntName *aname ); + + + /*************************************************************************** + * + * @constant: + * FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY + * + * @description: + * A constant used as the tag of @FT_Parameter structures to make + * FT_Open_Face() ignore preferred family subfamily names in `name' + * table since OpenType version 1.4. For backwards compatibility with + * legacy systems which has 4-face-per-family restriction. + * + */ +#define FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY FT_MAKE_TAG( 'i', 'g', 'p', 'f' ) + + + /*************************************************************************** + * + * @constant: + * FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY + * + * @description: + * A constant used as the tag of @FT_Parameter structures to make + * FT_Open_Face() ignore preferred subfamily names in `name' table since + * OpenType version 1.4. For backwards compatibility with legacy + * systems which has 4-face-per-family restriction. + * + */ +#define FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY FT_MAKE_TAG( 'i', 'g', 'p', 's' ) + + /* */ + + +FT_END_HEADER + +#endif /* __FT_SFNT_NAMES_H__ */ + + +/* END */ diff --git a/include/freetype/ftstroke.h b/include/freetype/ftstroke.h new file mode 100644 index 0000000..49ae2bc --- /dev/null +++ b/include/freetype/ftstroke.h @@ -0,0 +1,741 @@ +/***************************************************************************/ +/* */ +/* ftstroke.h */ +/* */ +/* FreeType path stroker (specification). */ +/* */ +/* Copyright 2002-2006, 2008, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FT_STROKE_H__ +#define __FT_STROKE_H__ + +#include <ft2build.h> +#include FT_OUTLINE_H +#include FT_GLYPH_H + + +FT_BEGIN_HEADER + + + /************************************************************************ + * + * @section: + * glyph_stroker + * + * @title: + * Glyph Stroker + * + * @abstract: + * Generating bordered and stroked glyphs. + * + * @description: + * This component generates stroked outlines of a given vectorial + * glyph. It also allows you to retrieve the `outside' and/or the + * `inside' borders of the stroke. + * + * This can be useful to generate `bordered' glyph, i.e., glyphs + * displayed with a coloured (and anti-aliased) border around their + * shape. + */ + + + /************************************************************** + * + * @type: + * FT_Stroker + * + * @description: + * Opaque handler to a path stroker object. + */ + typedef struct FT_StrokerRec_* FT_Stroker; + + + /************************************************************** + * + * @enum: + * FT_Stroker_LineJoin + * + * @description: + * These values determine how two joining lines are rendered + * in a stroker. + * + * @values: + * FT_STROKER_LINEJOIN_ROUND :: + * Used to render rounded line joins. Circular arcs are used + * to join two lines smoothly. + * + * FT_STROKER_LINEJOIN_BEVEL :: + * Used to render beveled line joins. The outer corner of + * the joined lines is filled by enclosing the triangular + * region of the corner with a straight line between the + * outer corners of each stroke. + * + * FT_STROKER_LINEJOIN_MITER_FIXED :: + * Used to render mitered line joins, with fixed bevels if the + * miter limit is exceeded. The outer edges of the strokes + * for the two segments are extended until they meet at an + * angle. If the segments meet at too sharp an angle (such + * that the miter would extend from the intersection of the + * segments a distance greater than the product of the miter + * limit value and the border radius), then a bevel join (see + * above) is used instead. This prevents long spikes being + * created. FT_STROKER_LINEJOIN_MITER_FIXED generates a miter + * line join as used in PostScript and PDF. + * + * FT_STROKER_LINEJOIN_MITER_VARIABLE :: + * FT_STROKER_LINEJOIN_MITER :: + * Used to render mitered line joins, with variable bevels if + * the miter limit is exceeded. The intersection of the + * strokes is clipped at a line perpendicular to the bisector + * of the angle between the strokes, at the distance from the + * intersection of the segments equal to the product of the + * miter limit value and the border radius. This prevents + * long spikes being created. + * FT_STROKER_LINEJOIN_MITER_VARIABLE generates a mitered line + * join as used in XPS. FT_STROKER_LINEJOIN_MITER is an alias + * for FT_STROKER_LINEJOIN_MITER_VARIABLE, retained for + * backwards compatibility. + */ + typedef enum FT_Stroker_LineJoin_ + { + FT_STROKER_LINEJOIN_ROUND = 0, + FT_STROKER_LINEJOIN_BEVEL = 1, + FT_STROKER_LINEJOIN_MITER_VARIABLE = 2, + FT_STROKER_LINEJOIN_MITER = FT_STROKER_LINEJOIN_MITER_VARIABLE, + FT_STROKER_LINEJOIN_MITER_FIXED = 3 + + } FT_Stroker_LineJoin; + + + /************************************************************** + * + * @enum: + * FT_Stroker_LineCap + * + * @description: + * These values determine how the end of opened sub-paths are + * rendered in a stroke. + * + * @values: + * FT_STROKER_LINECAP_BUTT :: + * The end of lines is rendered as a full stop on the last + * point itself. + * + * FT_STROKER_LINECAP_ROUND :: + * The end of lines is rendered as a half-circle around the + * last point. + * + * FT_STROKER_LINECAP_SQUARE :: + * The end of lines is rendered as a square around the + * last point. + */ + typedef enum FT_Stroker_LineCap_ + { + FT_STROKER_LINECAP_BUTT = 0, + FT_STROKER_LINECAP_ROUND, + FT_STROKER_LINECAP_SQUARE + + } FT_Stroker_LineCap; + + + /************************************************************** + * + * @enum: + * FT_StrokerBorder + * + * @description: + * These values are used to select a given stroke border + * in @FT_Stroker_GetBorderCounts and @FT_Stroker_ExportBorder. + * + * @values: + * FT_STROKER_BORDER_LEFT :: + * Select the left border, relative to the drawing direction. + * + * FT_STROKER_BORDER_RIGHT :: + * Select the right border, relative to the drawing direction. + * + * @note: + * Applications are generally interested in the `inside' and `outside' + * borders. However, there is no direct mapping between these and the + * `left' and `right' ones, since this really depends on the glyph's + * drawing orientation, which varies between font formats. + * + * You can however use @FT_Outline_GetInsideBorder and + * @FT_Outline_GetOutsideBorder to get these. + */ + typedef enum FT_StrokerBorder_ + { + FT_STROKER_BORDER_LEFT = 0, + FT_STROKER_BORDER_RIGHT + + } FT_StrokerBorder; + + + /************************************************************** + * + * @function: + * FT_Outline_GetInsideBorder + * + * @description: + * Retrieve the @FT_StrokerBorder value corresponding to the + * `inside' borders of a given outline. + * + * @input: + * outline :: + * The source outline handle. + * + * @return: + * The border index. @FT_STROKER_BORDER_RIGHT for empty or invalid + * outlines. + */ + FT_EXPORT( FT_StrokerBorder ) + FT_Outline_GetInsideBorder( FT_Outline* outline ); + + + /************************************************************** + * + * @function: + * FT_Outline_GetOutsideBorder + * + * @description: + * Retrieve the @FT_StrokerBorder value corresponding to the + * `outside' borders of a given outline. + * + * @input: + * outline :: + * The source outline handle. + * + * @return: + * The border index. @FT_STROKER_BORDER_LEFT for empty or invalid + * outlines. + */ + FT_EXPORT( FT_StrokerBorder ) + FT_Outline_GetOutsideBorder( FT_Outline* outline ); + + + /************************************************************** + * + * @function: + * FT_Stroker_New + * + * @description: + * Create a new stroker object. + * + * @input: + * library :: + * FreeType library handle. + * + * @output: + * astroker :: + * A new stroker object handle. NULL in case of error. + * + * @return: + * FreeType error code. 0~means success. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_New( FT_Library library, + FT_Stroker *astroker ); + + + /************************************************************** + * + * @function: + * FT_Stroker_Set + * + * @description: + * Reset a stroker object's attributes. + * + * @input: + * stroker :: + * The target stroker handle. + * + * radius :: + * The border radius. + * + * line_cap :: + * The line cap style. + * + * line_join :: + * The line join style. + * + * miter_limit :: + * The miter limit for the FT_STROKER_LINEJOIN_MITER_FIXED and + * FT_STROKER_LINEJOIN_MITER_VARIABLE line join styles, + * expressed as 16.16 fixed point value. + * + * @note: + * The radius is expressed in the same units as the outline + * coordinates. + */ + FT_EXPORT( void ) + FT_Stroker_Set( FT_Stroker stroker, + FT_Fixed radius, + FT_Stroker_LineCap line_cap, + FT_Stroker_LineJoin line_join, + FT_Fixed miter_limit ); + + + /************************************************************** + * + * @function: + * FT_Stroker_Rewind + * + * @description: + * Reset a stroker object without changing its attributes. + * You should call this function before beginning a new + * series of calls to @FT_Stroker_BeginSubPath or + * @FT_Stroker_EndSubPath. + * + * @input: + * stroker :: + * The target stroker handle. + */ + FT_EXPORT( void ) + FT_Stroker_Rewind( FT_Stroker stroker ); + + + /************************************************************** + * + * @function: + * FT_Stroker_ParseOutline + * + * @description: + * A convenience function used to parse a whole outline with + * the stroker. The resulting outline(s) can be retrieved + * later by functions like @FT_Stroker_GetCounts and @FT_Stroker_Export. + * + * @input: + * stroker :: + * The target stroker handle. + * + * outline :: + * The source outline. + * + * opened :: + * A boolean. If~1, the outline is treated as an open path instead + * of a closed one. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * If `opened' is~0 (the default), the outline is treated as a closed + * path, and the stroker generates two distinct `border' outlines. + * + * If `opened' is~1, the outline is processed as an open path, and the + * stroker generates a single `stroke' outline. + * + * This function calls @FT_Stroker_Rewind automatically. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_ParseOutline( FT_Stroker stroker, + FT_Outline* outline, + FT_Bool opened ); + + + /************************************************************** + * + * @function: + * FT_Stroker_BeginSubPath + * + * @description: + * Start a new sub-path in the stroker. + * + * @input: + * stroker :: + * The target stroker handle. + * + * to :: + * A pointer to the start vector. + * + * open :: + * A boolean. If~1, the sub-path is treated as an open one. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function is useful when you need to stroke a path that is + * not stored as an @FT_Outline object. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_BeginSubPath( FT_Stroker stroker, + FT_Vector* to, + FT_Bool open ); + + + /************************************************************** + * + * @function: + * FT_Stroker_EndSubPath + * + * @description: + * Close the current sub-path in the stroker. + * + * @input: + * stroker :: + * The target stroker handle. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * You should call this function after @FT_Stroker_BeginSubPath. + * If the subpath was not `opened', this function `draws' a + * single line segment to the start position when needed. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_EndSubPath( FT_Stroker stroker ); + + + /************************************************************** + * + * @function: + * FT_Stroker_LineTo + * + * @description: + * `Draw' a single line segment in the stroker's current sub-path, + * from the last position. + * + * @input: + * stroker :: + * The target stroker handle. + * + * to :: + * A pointer to the destination point. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * You should call this function between @FT_Stroker_BeginSubPath and + * @FT_Stroker_EndSubPath. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_LineTo( FT_Stroker stroker, + FT_Vector* to ); + + + /************************************************************** + * + * @function: + * FT_Stroker_ConicTo + * + * @description: + * `Draw' a single quadratic Bézier in the stroker's current sub-path, + * from the last position. + * + * @input: + * stroker :: + * The target stroker handle. + * + * control :: + * A pointer to a Bézier control point. + * + * to :: + * A pointer to the destination point. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * You should call this function between @FT_Stroker_BeginSubPath and + * @FT_Stroker_EndSubPath. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_ConicTo( FT_Stroker stroker, + FT_Vector* control, + FT_Vector* to ); + + + /************************************************************** + * + * @function: + * FT_Stroker_CubicTo + * + * @description: + * `Draw' a single cubic Bézier in the stroker's current sub-path, + * from the last position. + * + * @input: + * stroker :: + * The target stroker handle. + * + * control1 :: + * A pointer to the first Bézier control point. + * + * control2 :: + * A pointer to second Bézier control point. + * + * to :: + * A pointer to the destination point. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * You should call this function between @FT_Stroker_BeginSubPath and + * @FT_Stroker_EndSubPath. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_CubicTo( FT_Stroker stroker, + FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to ); + + + /************************************************************** + * + * @function: + * FT_Stroker_GetBorderCounts + * + * @description: + * Call this function once you have finished parsing your paths + * with the stroker. It returns the number of points and + * contours necessary to export one of the `border' or `stroke' + * outlines generated by the stroker. + * + * @input: + * stroker :: + * The target stroker handle. + * + * border :: + * The border index. + * + * @output: + * anum_points :: + * The number of points. + * + * anum_contours :: + * The number of contours. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * When an outline, or a sub-path, is `closed', the stroker generates + * two independent `border' outlines, named `left' and `right'. + * + * When the outline, or a sub-path, is `opened', the stroker merges + * the `border' outlines with caps. The `left' border receives all + * points, while the `right' border becomes empty. + * + * Use the function @FT_Stroker_GetCounts instead if you want to + * retrieve the counts associated to both borders. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_GetBorderCounts( FT_Stroker stroker, + FT_StrokerBorder border, + FT_UInt *anum_points, + FT_UInt *anum_contours ); + + + /************************************************************** + * + * @function: + * FT_Stroker_ExportBorder + * + * @description: + * Call this function after @FT_Stroker_GetBorderCounts to + * export the corresponding border to your own @FT_Outline + * structure. + * + * Note that this function appends the border points and + * contours to your outline, but does not try to resize its + * arrays. + * + * @input: + * stroker :: + * The target stroker handle. + * + * border :: + * The border index. + * + * outline :: + * The target outline handle. + * + * @note: + * Always call this function after @FT_Stroker_GetBorderCounts to + * get sure that there is enough room in your @FT_Outline object to + * receive all new data. + * + * When an outline, or a sub-path, is `closed', the stroker generates + * two independent `border' outlines, named `left' and `right' + * + * When the outline, or a sub-path, is `opened', the stroker merges + * the `border' outlines with caps. The `left' border receives all + * points, while the `right' border becomes empty. + * + * Use the function @FT_Stroker_Export instead if you want to + * retrieve all borders at once. + */ + FT_EXPORT( void ) + FT_Stroker_ExportBorder( FT_Stroker stroker, + FT_StrokerBorder border, + FT_Outline* outline ); + + + /************************************************************** + * + * @function: + * FT_Stroker_GetCounts + * + * @description: + * Call this function once you have finished parsing your paths + * with the stroker. It returns the number of points and + * contours necessary to export all points/borders from the stroked + * outline/path. + * + * @input: + * stroker :: + * The target stroker handle. + * + * @output: + * anum_points :: + * The number of points. + * + * anum_contours :: + * The number of contours. + * + * @return: + * FreeType error code. 0~means success. + */ + FT_EXPORT( FT_Error ) + FT_Stroker_GetCounts( FT_Stroker stroker, + FT_UInt *anum_points, + FT_UInt *anum_contours ); + + + /************************************************************** + * + * @function: + * FT_Stroker_Export + * + * @description: + * Call this function after @FT_Stroker_GetBorderCounts to + * export all borders to your own @FT_Outline structure. + * + * Note that this function appends the border points and + * contours to your outline, but does not try to resize its + * arrays. + * + * @input: + * stroker :: + * The target stroker handle. + * + * outline :: + * The target outline handle. + */ + FT_EXPORT( void ) + FT_Stroker_Export( FT_Stroker stroker, + FT_Outline* outline ); + + + /************************************************************** + * + * @function: + * FT_Stroker_Done + * + * @description: + * Destroy a stroker object. + * + * @input: + * stroker :: + * A stroker handle. Can be NULL. + */ + FT_EXPORT( void ) + FT_Stroker_Done( FT_Stroker stroker ); + + + /************************************************************** + * + * @function: + * FT_Glyph_Stroke + * + * @description: + * Stroke a given outline glyph object with a given stroker. + * + * @inout: + * pglyph :: + * Source glyph handle on input, new glyph handle on output. + * + * @input: + * stroker :: + * A stroker handle. + * + * destroy :: + * A Boolean. If~1, the source glyph object is destroyed + * on success. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The source glyph is untouched in case of error. + */ + FT_EXPORT( FT_Error ) + FT_Glyph_Stroke( FT_Glyph *pglyph, + FT_Stroker stroker, + FT_Bool destroy ); + + + /************************************************************** + * + * @function: + * FT_Glyph_StrokeBorder + * + * @description: + * Stroke a given outline glyph object with a given stroker, but + * only return either its inside or outside border. + * + * @inout: + * pglyph :: + * Source glyph handle on input, new glyph handle on output. + * + * @input: + * stroker :: + * A stroker handle. + * + * inside :: + * A Boolean. If~1, return the inside border, otherwise + * the outside border. + * + * destroy :: + * A Boolean. If~1, the source glyph object is destroyed + * on success. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The source glyph is untouched in case of error. + */ + FT_EXPORT( FT_Error ) + FT_Glyph_StrokeBorder( FT_Glyph *pglyph, + FT_Stroker stroker, + FT_Bool inside, + FT_Bool destroy ); + + /* */ + +FT_END_HEADER + +#endif /* __FT_STROKE_H__ */ + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/include/freetype/ftsynth.h b/include/freetype/ftsynth.h new file mode 100644 index 0000000..a068b79 --- /dev/null +++ b/include/freetype/ftsynth.h @@ -0,0 +1,80 @@ +/***************************************************************************/ +/* */ +/* ftsynth.h */ +/* */ +/* FreeType synthesizing code for emboldening and slanting */ +/* (specification). */ +/* */ +/* Copyright 2000-2001, 2003, 2006, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********* *********/ + /********* WARNING, THIS IS ALPHA CODE! THIS API *********/ + /********* IS DUE TO CHANGE UNTIL STRICTLY NOTIFIED BY THE *********/ + /********* FREETYPE DEVELOPMENT TEAM *********/ + /********* *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* Main reason for not lifting the functions in this module to a */ + /* `standard' API is that the used parameters for emboldening and */ + /* slanting are not configurable. Consider the functions as a */ + /* code resource which should be copied into the application and */ + /* adapted to the particular needs. */ + + +#ifndef __FTSYNTH_H__ +#define __FTSYNTH_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /* Embolden a glyph by a `reasonable' value (which is highly a matter of */ + /* taste). This function is actually a convenience function, providing */ + /* a wrapper for @FT_Outline_Embolden and @FT_Bitmap_Embolden. */ + /* */ + /* For emboldened outlines the metrics are estimates only; if you need */ + /* precise values you should call @FT_Outline_Get_CBox. */ + FT_EXPORT( void ) + FT_GlyphSlot_Embolden( FT_GlyphSlot slot ); + + /* Slant an outline glyph to the right by about 12 degrees. */ + FT_EXPORT( void ) + FT_GlyphSlot_Oblique( FT_GlyphSlot slot ); + + /* */ + +FT_END_HEADER + +#endif /* __FTSYNTH_H__ */ + + +/* END */ diff --git a/include/freetype/ftsystem.h b/include/freetype/ftsystem.h new file mode 100644 index 0000000..e07460c --- /dev/null +++ b/include/freetype/ftsystem.h @@ -0,0 +1,347 @@ +/***************************************************************************/ +/* */ +/* ftsystem.h */ +/* */ +/* FreeType low-level system interface definition (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTSYSTEM_H__ +#define __FTSYSTEM_H__ + + +#include <ft2build.h> + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* system_interface */ + /* */ + /* <Title> */ + /* System Interface */ + /* */ + /* <Abstract> */ + /* How FreeType manages memory and i/o. */ + /* */ + /* <Description> */ + /* This section contains various definitions related to memory */ + /* management and i/o access. You need to understand this */ + /* information if you want to use a custom memory manager or you own */ + /* i/o streams. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* M E M O R Y M A N A G E M E N T */ + /* */ + /*************************************************************************/ + + + /************************************************************************* + * + * @type: + * FT_Memory + * + * @description: + * A handle to a given memory manager object, defined with an + * @FT_MemoryRec structure. + * + */ + typedef struct FT_MemoryRec_* FT_Memory; + + + /************************************************************************* + * + * @functype: + * FT_Alloc_Func + * + * @description: + * A function used to allocate `size' bytes from `memory'. + * + * @input: + * memory :: + * A handle to the source memory manager. + * + * size :: + * The size in bytes to allocate. + * + * @return: + * Address of new memory block. 0~in case of failure. + * + */ + typedef void* + (*FT_Alloc_Func)( FT_Memory memory, + long size ); + + + /************************************************************************* + * + * @functype: + * FT_Free_Func + * + * @description: + * A function used to release a given block of memory. + * + * @input: + * memory :: + * A handle to the source memory manager. + * + * block :: + * The address of the target memory block. + * + */ + typedef void + (*FT_Free_Func)( FT_Memory memory, + void* block ); + + + /************************************************************************* + * + * @functype: + * FT_Realloc_Func + * + * @description: + * A function used to re-allocate a given block of memory. + * + * @input: + * memory :: + * A handle to the source memory manager. + * + * cur_size :: + * The block's current size in bytes. + * + * new_size :: + * The block's requested new size. + * + * block :: + * The block's current address. + * + * @return: + * New block address. 0~in case of memory shortage. + * + * @note: + * In case of error, the old block must still be available. + * + */ + typedef void* + (*FT_Realloc_Func)( FT_Memory memory, + long cur_size, + long new_size, + void* block ); + + + /************************************************************************* + * + * @struct: + * FT_MemoryRec + * + * @description: + * A structure used to describe a given memory manager to FreeType~2. + * + * @fields: + * user :: + * A generic typeless pointer for user data. + * + * alloc :: + * A pointer type to an allocation function. + * + * free :: + * A pointer type to an memory freeing function. + * + * realloc :: + * A pointer type to a reallocation function. + * + */ + struct FT_MemoryRec_ + { + void* user; + FT_Alloc_Func alloc; + FT_Free_Func free; + FT_Realloc_Func realloc; + }; + + + /*************************************************************************/ + /* */ + /* I / O M A N A G E M E N T */ + /* */ + /*************************************************************************/ + + + /************************************************************************* + * + * @type: + * FT_Stream + * + * @description: + * A handle to an input stream. + * + */ + typedef struct FT_StreamRec_* FT_Stream; + + + /************************************************************************* + * + * @struct: + * FT_StreamDesc + * + * @description: + * A union type used to store either a long or a pointer. This is used + * to store a file descriptor or a `FILE*' in an input stream. + * + */ + typedef union FT_StreamDesc_ + { + long value; + void* pointer; + + } FT_StreamDesc; + + + /************************************************************************* + * + * @functype: + * FT_Stream_IoFunc + * + * @description: + * A function used to seek and read data from a given input stream. + * + * @input: + * stream :: + * A handle to the source stream. + * + * offset :: + * The offset of read in stream (always from start). + * + * buffer :: + * The address of the read buffer. + * + * count :: + * The number of bytes to read from the stream. + * + * @return: + * The number of bytes effectively read by the stream. + * + * @note: + * This function might be called to perform a seek or skip operation + * with a `count' of~0. A non-zero return value then indicates an + * error. + * + */ + typedef unsigned long + (*FT_Stream_IoFunc)( FT_Stream stream, + unsigned long offset, + unsigned char* buffer, + unsigned long count ); + + + /************************************************************************* + * + * @functype: + * FT_Stream_CloseFunc + * + * @description: + * A function used to close a given input stream. + * + * @input: + * stream :: + * A handle to the target stream. + * + */ + typedef void + (*FT_Stream_CloseFunc)( FT_Stream stream ); + + + /************************************************************************* + * + * @struct: + * FT_StreamRec + * + * @description: + * A structure used to describe an input stream. + * + * @input: + * base :: + * For memory-based streams, this is the address of the first stream + * byte in memory. This field should always be set to NULL for + * disk-based streams. + * + * size :: + * The stream size in bytes. + * + * pos :: + * The current position within the stream. + * + * descriptor :: + * This field is a union that can hold an integer or a pointer. It is + * used by stream implementations to store file descriptors or `FILE*' + * pointers. + * + * pathname :: + * This field is completely ignored by FreeType. However, it is often + * useful during debugging to use it to store the stream's filename + * (where available). + * + * read :: + * The stream's input function. + * + * close :: + * The stream's close function. + * + * memory :: + * The memory manager to use to preload frames. This is set + * internally by FreeType and shouldn't be touched by stream + * implementations. + * + * cursor :: + * This field is set and used internally by FreeType when parsing + * frames. + * + * limit :: + * This field is set and used internally by FreeType when parsing + * frames. + * + */ + typedef struct FT_StreamRec_ + { + unsigned char* base; + unsigned long size; + unsigned long pos; + + FT_StreamDesc descriptor; + FT_StreamDesc pathname; + FT_Stream_IoFunc read; + FT_Stream_CloseFunc close; + + FT_Memory memory; + unsigned char* cursor; + unsigned char* limit; + + } FT_StreamRec; + + + /* */ + + +FT_END_HEADER + +#endif /* __FTSYSTEM_H__ */ + + +/* END */ diff --git a/include/freetype/fttrigon.h b/include/freetype/fttrigon.h new file mode 100644 index 0000000..6b77d2e --- /dev/null +++ b/include/freetype/fttrigon.h @@ -0,0 +1,350 @@ +/***************************************************************************/ +/* */ +/* fttrigon.h */ +/* */ +/* FreeType trigonometric functions (specification). */ +/* */ +/* Copyright 2001, 2003, 2005, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTTRIGON_H__ +#define __FTTRIGON_H__ + +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* computations */ + /* */ + /*************************************************************************/ + + + /************************************************************************* + * + * @type: + * FT_Angle + * + * @description: + * This type is used to model angle values in FreeType. Note that the + * angle is a 16.16 fixed float value expressed in degrees. + * + */ + typedef FT_Fixed FT_Angle; + + + /************************************************************************* + * + * @macro: + * FT_ANGLE_PI + * + * @description: + * The angle pi expressed in @FT_Angle units. + * + */ +#define FT_ANGLE_PI ( 180L << 16 ) + + + /************************************************************************* + * + * @macro: + * FT_ANGLE_2PI + * + * @description: + * The angle 2*pi expressed in @FT_Angle units. + * + */ +#define FT_ANGLE_2PI ( FT_ANGLE_PI * 2 ) + + + /************************************************************************* + * + * @macro: + * FT_ANGLE_PI2 + * + * @description: + * The angle pi/2 expressed in @FT_Angle units. + * + */ +#define FT_ANGLE_PI2 ( FT_ANGLE_PI / 2 ) + + + /************************************************************************* + * + * @macro: + * FT_ANGLE_PI4 + * + * @description: + * The angle pi/4 expressed in @FT_Angle units. + * + */ +#define FT_ANGLE_PI4 ( FT_ANGLE_PI / 4 ) + + + /************************************************************************* + * + * @function: + * FT_Sin + * + * @description: + * Return the sinus of a given angle in fixed point format. + * + * @input: + * angle :: + * The input angle. + * + * @return: + * The sinus value. + * + * @note: + * If you need both the sinus and cosinus for a given angle, use the + * function @FT_Vector_Unit. + * + */ + FT_EXPORT( FT_Fixed ) + FT_Sin( FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * FT_Cos + * + * @description: + * Return the cosinus of a given angle in fixed point format. + * + * @input: + * angle :: + * The input angle. + * + * @return: + * The cosinus value. + * + * @note: + * If you need both the sinus and cosinus for a given angle, use the + * function @FT_Vector_Unit. + * + */ + FT_EXPORT( FT_Fixed ) + FT_Cos( FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * FT_Tan + * + * @description: + * Return the tangent of a given angle in fixed point format. + * + * @input: + * angle :: + * The input angle. + * + * @return: + * The tangent value. + * + */ + FT_EXPORT( FT_Fixed ) + FT_Tan( FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * FT_Atan2 + * + * @description: + * Return the arc-tangent corresponding to a given vector (x,y) in + * the 2d plane. + * + * @input: + * x :: + * The horizontal vector coordinate. + * + * y :: + * The vertical vector coordinate. + * + * @return: + * The arc-tangent value (i.e. angle). + * + */ + FT_EXPORT( FT_Angle ) + FT_Atan2( FT_Fixed x, + FT_Fixed y ); + + + /************************************************************************* + * + * @function: + * FT_Angle_Diff + * + * @description: + * Return the difference between two angles. The result is always + * constrained to the ]-PI..PI] interval. + * + * @input: + * angle1 :: + * First angle. + * + * angle2 :: + * Second angle. + * + * @return: + * Constrained value of `value2-value1'. + * + */ + FT_EXPORT( FT_Angle ) + FT_Angle_Diff( FT_Angle angle1, + FT_Angle angle2 ); + + + /************************************************************************* + * + * @function: + * FT_Vector_Unit + * + * @description: + * Return the unit vector corresponding to a given angle. After the + * call, the value of `vec.x' will be `sin(angle)', and the value of + * `vec.y' will be `cos(angle)'. + * + * This function is useful to retrieve both the sinus and cosinus of a + * given angle quickly. + * + * @output: + * vec :: + * The address of target vector. + * + * @input: + * angle :: + * The address of angle. + * + */ + FT_EXPORT( void ) + FT_Vector_Unit( FT_Vector* vec, + FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * FT_Vector_Rotate + * + * @description: + * Rotate a vector by a given angle. + * + * @inout: + * vec :: + * The address of target vector. + * + * @input: + * angle :: + * The address of angle. + * + */ + FT_EXPORT( void ) + FT_Vector_Rotate( FT_Vector* vec, + FT_Angle angle ); + + + /************************************************************************* + * + * @function: + * FT_Vector_Length + * + * @description: + * Return the length of a given vector. + * + * @input: + * vec :: + * The address of target vector. + * + * @return: + * The vector length, expressed in the same units that the original + * vector coordinates. + * + */ + FT_EXPORT( FT_Fixed ) + FT_Vector_Length( FT_Vector* vec ); + + + /************************************************************************* + * + * @function: + * FT_Vector_Polarize + * + * @description: + * Compute both the length and angle of a given vector. + * + * @input: + * vec :: + * The address of source vector. + * + * @output: + * length :: + * The vector length. + * + * angle :: + * The vector angle. + * + */ + FT_EXPORT( void ) + FT_Vector_Polarize( FT_Vector* vec, + FT_Fixed *length, + FT_Angle *angle ); + + + /************************************************************************* + * + * @function: + * FT_Vector_From_Polar + * + * @description: + * Compute vector coordinates from a length and angle. + * + * @output: + * vec :: + * The address of source vector. + * + * @input: + * length :: + * The vector length. + * + * angle :: + * The vector angle. + * + */ + FT_EXPORT( void ) + FT_Vector_From_Polar( FT_Vector* vec, + FT_Fixed length, + FT_Angle angle ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTTRIGON_H__ */ + + +/* END */ diff --git a/include/freetype/fttypes.h b/include/freetype/fttypes.h new file mode 100644 index 0000000..3255527 --- /dev/null +++ b/include/freetype/fttypes.h @@ -0,0 +1,588 @@ +/***************************************************************************/ +/* */ +/* fttypes.h */ +/* */ +/* FreeType simple types definitions (specification only). */ +/* */ +/* Copyright 1996-2002, 2004, 2006-2009, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTTYPES_H__ +#define __FTTYPES_H__ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_SYSTEM_H +#include FT_IMAGE_H + +#include <stddef.h> + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* basic_types */ + /* */ + /* <Title> */ + /* Basic Data Types */ + /* */ + /* <Abstract> */ + /* The basic data types defined by the library. */ + /* */ + /* <Description> */ + /* This section contains the basic data types defined by FreeType~2, */ + /* ranging from simple scalar types to bitmap descriptors. More */ + /* font-specific structures are defined in a different section. */ + /* */ + /* <Order> */ + /* FT_Byte */ + /* FT_Bytes */ + /* FT_Char */ + /* FT_Int */ + /* FT_UInt */ + /* FT_Int16 */ + /* FT_UInt16 */ + /* FT_Int32 */ + /* FT_UInt32 */ + /* FT_Short */ + /* FT_UShort */ + /* FT_Long */ + /* FT_ULong */ + /* FT_Bool */ + /* FT_Offset */ + /* FT_PtrDist */ + /* FT_String */ + /* FT_Tag */ + /* FT_Error */ + /* FT_Fixed */ + /* FT_Pointer */ + /* FT_Pos */ + /* FT_Vector */ + /* FT_BBox */ + /* FT_Matrix */ + /* FT_FWord */ + /* FT_UFWord */ + /* FT_F2Dot14 */ + /* FT_UnitVector */ + /* FT_F26Dot6 */ + /* */ + /* */ + /* FT_Generic */ + /* FT_Generic_Finalizer */ + /* */ + /* FT_Bitmap */ + /* FT_Pixel_Mode */ + /* FT_Palette_Mode */ + /* FT_Glyph_Format */ + /* FT_IMAGE_TAG */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Bool */ + /* */ + /* <Description> */ + /* A typedef of unsigned char, used for simple booleans. As usual, */ + /* values 1 and~0 represent true and false, respectively. */ + /* */ + typedef unsigned char FT_Bool; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_FWord */ + /* */ + /* <Description> */ + /* A signed 16-bit integer used to store a distance in original font */ + /* units. */ + /* */ + typedef signed short FT_FWord; /* distance in FUnits */ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_UFWord */ + /* */ + /* <Description> */ + /* An unsigned 16-bit integer used to store a distance in original */ + /* font units. */ + /* */ + typedef unsigned short FT_UFWord; /* unsigned distance */ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Char */ + /* */ + /* <Description> */ + /* A simple typedef for the _signed_ char type. */ + /* */ + typedef signed char FT_Char; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Byte */ + /* */ + /* <Description> */ + /* A simple typedef for the _unsigned_ char type. */ + /* */ + typedef unsigned char FT_Byte; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Bytes */ + /* */ + /* <Description> */ + /* A typedef for constant memory areas. */ + /* */ + typedef const FT_Byte* FT_Bytes; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Tag */ + /* */ + /* <Description> */ + /* A typedef for 32-bit tags (as used in the SFNT format). */ + /* */ + typedef FT_UInt32 FT_Tag; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_String */ + /* */ + /* <Description> */ + /* A simple typedef for the char type, usually used for strings. */ + /* */ + typedef char FT_String; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Short */ + /* */ + /* <Description> */ + /* A typedef for signed short. */ + /* */ + typedef signed short FT_Short; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_UShort */ + /* */ + /* <Description> */ + /* A typedef for unsigned short. */ + /* */ + typedef unsigned short FT_UShort; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Int */ + /* */ + /* <Description> */ + /* A typedef for the int type. */ + /* */ + typedef signed int FT_Int; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_UInt */ + /* */ + /* <Description> */ + /* A typedef for the unsigned int type. */ + /* */ + typedef unsigned int FT_UInt; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Long */ + /* */ + /* <Description> */ + /* A typedef for signed long. */ + /* */ + typedef signed long FT_Long; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_ULong */ + /* */ + /* <Description> */ + /* A typedef for unsigned long. */ + /* */ + typedef unsigned long FT_ULong; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_F2Dot14 */ + /* */ + /* <Description> */ + /* A signed 2.14 fixed float type used for unit vectors. */ + /* */ + typedef signed short FT_F2Dot14; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_F26Dot6 */ + /* */ + /* <Description> */ + /* A signed 26.6 fixed float type used for vectorial pixel */ + /* coordinates. */ + /* */ + typedef signed long FT_F26Dot6; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Fixed */ + /* */ + /* <Description> */ + /* This type is used to store 16.16 fixed float values, like scaling */ + /* values or matrix coefficients. */ + /* */ + typedef signed long FT_Fixed; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Error */ + /* */ + /* <Description> */ + /* The FreeType error code type. A value of~0 is always interpreted */ + /* as a successful operation. */ + /* */ + typedef int FT_Error; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Pointer */ + /* */ + /* <Description> */ + /* A simple typedef for a typeless pointer. */ + /* */ + typedef void* FT_Pointer; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Offset */ + /* */ + /* <Description> */ + /* This is equivalent to the ANSI~C `size_t' type, i.e., the largest */ + /* _unsigned_ integer type used to express a file size or position, */ + /* or a memory block size. */ + /* */ + typedef size_t FT_Offset; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_PtrDist */ + /* */ + /* <Description> */ + /* This is equivalent to the ANSI~C `ptrdiff_t' type, i.e., the */ + /* largest _signed_ integer type used to express the distance */ + /* between two pointers. */ + /* */ + typedef ft_ptrdiff_t FT_PtrDist; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_UnitVector */ + /* */ + /* <Description> */ + /* A simple structure used to store a 2D vector unit vector. Uses */ + /* FT_F2Dot14 types. */ + /* */ + /* <Fields> */ + /* x :: Horizontal coordinate. */ + /* */ + /* y :: Vertical coordinate. */ + /* */ + typedef struct FT_UnitVector_ + { + FT_F2Dot14 x; + FT_F2Dot14 y; + + } FT_UnitVector; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Matrix */ + /* */ + /* <Description> */ + /* A simple structure used to store a 2x2 matrix. Coefficients are */ + /* in 16.16 fixed float format. The computation performed is: */ + /* */ + /* { */ + /* x' = x*xx + y*xy */ + /* y' = x*yx + y*yy */ + /* } */ + /* */ + /* <Fields> */ + /* xx :: Matrix coefficient. */ + /* */ + /* xy :: Matrix coefficient. */ + /* */ + /* yx :: Matrix coefficient. */ + /* */ + /* yy :: Matrix coefficient. */ + /* */ + typedef struct FT_Matrix_ + { + FT_Fixed xx, xy; + FT_Fixed yx, yy; + + } FT_Matrix; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Data */ + /* */ + /* <Description> */ + /* Read-only binary data represented as a pointer and a length. */ + /* */ + /* <Fields> */ + /* pointer :: The data. */ + /* */ + /* length :: The length of the data in bytes. */ + /* */ + typedef struct FT_Data_ + { + const FT_Byte* pointer; + FT_Int length; + + } FT_Data; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Generic_Finalizer */ + /* */ + /* <Description> */ + /* Describe a function used to destroy the `client' data of any */ + /* FreeType object. See the description of the @FT_Generic type for */ + /* details of usage. */ + /* */ + /* <Input> */ + /* The address of the FreeType object which is under finalization. */ + /* Its client data is accessed through its `generic' field. */ + /* */ + typedef void (*FT_Generic_Finalizer)(void* object); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Generic */ + /* */ + /* <Description> */ + /* Client applications often need to associate their own data to a */ + /* variety of FreeType core objects. For example, a text layout API */ + /* might want to associate a glyph cache to a given size object. */ + /* */ + /* Some FreeType object contains a `generic' field, of type */ + /* FT_Generic, which usage is left to client applications and font */ + /* servers. */ + /* */ + /* It can be used to store a pointer to client-specific data, as well */ + /* as the address of a `finalizer' function, which will be called by */ + /* FreeType when the object is destroyed (for example, the previous */ + /* client example would put the address of the glyph cache destructor */ + /* in the `finalizer' field). */ + /* */ + /* <Fields> */ + /* data :: A typeless pointer to any client-specified data. This */ + /* field is completely ignored by the FreeType library. */ + /* */ + /* finalizer :: A pointer to a `generic finalizer' function, which */ + /* will be called when the object is destroyed. If this */ + /* field is set to NULL, no code will be called. */ + /* */ + typedef struct FT_Generic_ + { + void* data; + FT_Generic_Finalizer finalizer; + + } FT_Generic; + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_MAKE_TAG */ + /* */ + /* <Description> */ + /* This macro converts four-letter tags which are used to label */ + /* TrueType tables into an unsigned long to be used within FreeType. */ + /* */ + /* <Note> */ + /* The produced values *must* be 32-bit integers. Don't redefine */ + /* this macro. */ + /* */ +#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \ + (FT_Tag) \ + ( ( (FT_ULong)_x1 << 24 ) | \ + ( (FT_ULong)_x2 << 16 ) | \ + ( (FT_ULong)_x3 << 8 ) | \ + (FT_ULong)_x4 ) + + + /*************************************************************************/ + /*************************************************************************/ + /* */ + /* L I S T M A N A G E M E N T */ + /* */ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* list_processing */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_ListNode */ + /* */ + /* <Description> */ + /* Many elements and objects in FreeType are listed through an */ + /* @FT_List record (see @FT_ListRec). As its name suggests, an */ + /* FT_ListNode is a handle to a single list element. */ + /* */ + typedef struct FT_ListNodeRec_* FT_ListNode; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_List */ + /* */ + /* <Description> */ + /* A handle to a list record (see @FT_ListRec). */ + /* */ + typedef struct FT_ListRec_* FT_List; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_ListNodeRec */ + /* */ + /* <Description> */ + /* A structure used to hold a single list element. */ + /* */ + /* <Fields> */ + /* prev :: The previous element in the list. NULL if first. */ + /* */ + /* next :: The next element in the list. NULL if last. */ + /* */ + /* data :: A typeless pointer to the listed object. */ + /* */ + typedef struct FT_ListNodeRec_ + { + FT_ListNode prev; + FT_ListNode next; + void* data; + + } FT_ListNodeRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_ListRec */ + /* */ + /* <Description> */ + /* A structure used to hold a simple doubly-linked list. These are */ + /* used in many parts of FreeType. */ + /* */ + /* <Fields> */ + /* head :: The head (first element) of doubly-linked list. */ + /* */ + /* tail :: The tail (last element) of doubly-linked list. */ + /* */ + typedef struct FT_ListRec_ + { + FT_ListNode head; + FT_ListNode tail; + + } FT_ListRec; + + + /* */ + +#define FT_IS_EMPTY( list ) ( (list).head == 0 ) + + /* return base error code (without module-specific prefix) */ +#define FT_ERROR_BASE( x ) ( (x) & 0xFF ) + + /* return module error code */ +#define FT_ERROR_MODULE( x ) ( (x) & 0xFF00U ) + +#define FT_BOOL( x ) ( (FT_Bool)( x ) ) + +FT_END_HEADER + +#endif /* __FTTYPES_H__ */ + + +/* END */ diff --git a/include/freetype/ftwinfnt.h b/include/freetype/ftwinfnt.h new file mode 100644 index 0000000..ea33353 --- /dev/null +++ b/include/freetype/ftwinfnt.h @@ -0,0 +1,274 @@ +/***************************************************************************/ +/* */ +/* ftwinfnt.h */ +/* */ +/* FreeType API for accessing Windows fnt-specific data. */ +/* */ +/* Copyright 2003, 2004, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTWINFNT_H__ +#define __FTWINFNT_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* winfnt_fonts */ + /* */ + /* <Title> */ + /* Window FNT Files */ + /* */ + /* <Abstract> */ + /* Windows FNT specific API. */ + /* */ + /* <Description> */ + /* This section contains the declaration of Windows FNT specific */ + /* functions. */ + /* */ + /*************************************************************************/ + + + /************************************************************************* + * + * @enum: + * FT_WinFNT_ID_XXX + * + * @description: + * A list of valid values for the `charset' byte in + * @FT_WinFNT_HeaderRec. Exact mapping tables for the various cpXXXX + * encodings (except for cp1361) can be found at ftp://ftp.unicode.org + * in the MAPPINGS/VENDORS/MICSFT/WINDOWS subdirectory. cp1361 is + * roughly a superset of MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT. + * + * @values: + * FT_WinFNT_ID_DEFAULT :: + * This is used for font enumeration and font creation as a + * `don't care' value. Valid font files don't contain this value. + * When querying for information about the character set of the font + * that is currently selected into a specified device context, this + * return value (of the related Windows API) simply denotes failure. + * + * FT_WinFNT_ID_SYMBOL :: + * There is no known mapping table available. + * + * FT_WinFNT_ID_MAC :: + * Mac Roman encoding. + * + * FT_WinFNT_ID_OEM :: + * From Michael Pöttgen <michael@poettgen.de>: + * + * The `Windows Font Mapping' article says that FT_WinFNT_ID_OEM + * is used for the charset of vector fonts, like `modern.fon', + * `roman.fon', and `script.fon' on Windows. + * + * The `CreateFont' documentation says: The FT_WinFNT_ID_OEM value + * specifies a character set that is operating-system dependent. + * + * The `IFIMETRICS' documentation from the `Windows Driver + * Development Kit' says: This font supports an OEM-specific + * character set. The OEM character set is system dependent. + * + * In general OEM, as opposed to ANSI (i.e., cp1252), denotes the + * second default codepage that most international versions of + * Windows have. It is one of the OEM codepages from + * + * http://www.microsoft.com/globaldev/reference/cphome.mspx, + * + * and is used for the `DOS boxes', to support legacy applications. + * A German Windows version for example usually uses ANSI codepage + * 1252 and OEM codepage 850. + * + * FT_WinFNT_ID_CP874 :: + * A superset of Thai TIS 620 and ISO 8859-11. + * + * FT_WinFNT_ID_CP932 :: + * A superset of Japanese Shift-JIS (with minor deviations). + * + * FT_WinFNT_ID_CP936 :: + * A superset of simplified Chinese GB 2312-1980 (with different + * ordering and minor deviations). + * + * FT_WinFNT_ID_CP949 :: + * A superset of Korean Hangul KS~C 5601-1987 (with different + * ordering and minor deviations). + * + * FT_WinFNT_ID_CP950 :: + * A superset of traditional Chinese Big~5 ETen (with different + * ordering and minor deviations). + * + * FT_WinFNT_ID_CP1250 :: + * A superset of East European ISO 8859-2 (with slightly different + * ordering). + * + * FT_WinFNT_ID_CP1251 :: + * A superset of Russian ISO 8859-5 (with different ordering). + * + * FT_WinFNT_ID_CP1252 :: + * ANSI encoding. A superset of ISO 8859-1. + * + * FT_WinFNT_ID_CP1253 :: + * A superset of Greek ISO 8859-7 (with minor modifications). + * + * FT_WinFNT_ID_CP1254 :: + * A superset of Turkish ISO 8859-9. + * + * FT_WinFNT_ID_CP1255 :: + * A superset of Hebrew ISO 8859-8 (with some modifications). + * + * FT_WinFNT_ID_CP1256 :: + * A superset of Arabic ISO 8859-6 (with different ordering). + * + * FT_WinFNT_ID_CP1257 :: + * A superset of Baltic ISO 8859-13 (with some deviations). + * + * FT_WinFNT_ID_CP1258 :: + * For Vietnamese. This encoding doesn't cover all necessary + * characters. + * + * FT_WinFNT_ID_CP1361 :: + * Korean (Johab). + */ + +#define FT_WinFNT_ID_CP1252 0 +#define FT_WinFNT_ID_DEFAULT 1 +#define FT_WinFNT_ID_SYMBOL 2 +#define FT_WinFNT_ID_MAC 77 +#define FT_WinFNT_ID_CP932 128 +#define FT_WinFNT_ID_CP949 129 +#define FT_WinFNT_ID_CP1361 130 +#define FT_WinFNT_ID_CP936 134 +#define FT_WinFNT_ID_CP950 136 +#define FT_WinFNT_ID_CP1253 161 +#define FT_WinFNT_ID_CP1254 162 +#define FT_WinFNT_ID_CP1258 163 +#define FT_WinFNT_ID_CP1255 177 +#define FT_WinFNT_ID_CP1256 178 +#define FT_WinFNT_ID_CP1257 186 +#define FT_WinFNT_ID_CP1251 204 +#define FT_WinFNT_ID_CP874 222 +#define FT_WinFNT_ID_CP1250 238 +#define FT_WinFNT_ID_OEM 255 + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_WinFNT_HeaderRec */ + /* */ + /* <Description> */ + /* Windows FNT Header info. */ + /* */ + typedef struct FT_WinFNT_HeaderRec_ + { + FT_UShort version; + FT_ULong file_size; + FT_Byte copyright[60]; + FT_UShort file_type; + FT_UShort nominal_point_size; + FT_UShort vertical_resolution; + FT_UShort horizontal_resolution; + FT_UShort ascent; + FT_UShort internal_leading; + FT_UShort external_leading; + FT_Byte italic; + FT_Byte underline; + FT_Byte strike_out; + FT_UShort weight; + FT_Byte charset; + FT_UShort pixel_width; + FT_UShort pixel_height; + FT_Byte pitch_and_family; + FT_UShort avg_width; + FT_UShort max_width; + FT_Byte first_char; + FT_Byte last_char; + FT_Byte default_char; + FT_Byte break_char; + FT_UShort bytes_per_row; + FT_ULong device_offset; + FT_ULong face_name_offset; + FT_ULong bits_pointer; + FT_ULong bits_offset; + FT_Byte reserved; + FT_ULong flags; + FT_UShort A_space; + FT_UShort B_space; + FT_UShort C_space; + FT_UShort color_table_offset; + FT_ULong reserved1[4]; + + } FT_WinFNT_HeaderRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_WinFNT_Header */ + /* */ + /* <Description> */ + /* A handle to an @FT_WinFNT_HeaderRec structure. */ + /* */ + typedef struct FT_WinFNT_HeaderRec_* FT_WinFNT_Header; + + + /********************************************************************** + * + * @function: + * FT_Get_WinFNT_Header + * + * @description: + * Retrieve a Windows FNT font info header. + * + * @input: + * face :: A handle to the input face. + * + * @output: + * aheader :: The WinFNT header. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * This function only works with Windows FNT faces, returning an error + * otherwise. + */ + FT_EXPORT( FT_Error ) + FT_Get_WinFNT_Header( FT_Face face, + FT_WinFNT_HeaderRec *aheader ); + + + /* */ + +FT_END_HEADER + +#endif /* __FTWINFNT_H__ */ + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/include/freetype/ftxf86.h b/include/freetype/ftxf86.h new file mode 100644 index 0000000..8c68afd --- /dev/null +++ b/include/freetype/ftxf86.h @@ -0,0 +1,83 @@ +/***************************************************************************/ +/* */ +/* ftxf86.h */ +/* */ +/* Support functions for X11. */ +/* */ +/* Copyright 2002, 2003, 2004, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTXF86_H__ +#define __FTXF86_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* font_formats */ + /* */ + /* <Title> */ + /* Font Formats */ + /* */ + /* <Abstract> */ + /* Getting the font format. */ + /* */ + /* <Description> */ + /* The single function in this section can be used to get the font */ + /* format. Note that this information is not needed normally; */ + /* however, there are special cases (like in PDF devices) where it is */ + /* important to differentiate, in spite of FreeType's uniform API. */ + /* */ + /* This function is in the X11/xf86 namespace for historical reasons */ + /* and in no way depends on that windowing system. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_X11_Font_Format */ + /* */ + /* <Description> */ + /* Return a string describing the format of a given face, using values */ + /* which can be used as an X11 FONT_PROPERTY. Possible values are */ + /* `TrueType', `Type~1', `BDF', `PCF', `Type~42', `CID~Type~1', `CFF', */ + /* `PFR', and `Windows~FNT'. */ + /* */ + /* <Input> */ + /* face :: */ + /* Input face handle. */ + /* */ + /* <Return> */ + /* Font format string. NULL in case of error. */ + /* */ + FT_EXPORT( const char* ) + FT_Get_X11_Font_Format( FT_Face face ); + + /* */ + +FT_END_HEADER + +#endif /* __FTXF86_H__ */ diff --git a/include/freetype/internal/autohint.h b/include/freetype/internal/autohint.h new file mode 100644 index 0000000..231bdd4 --- /dev/null +++ b/include/freetype/internal/autohint.h @@ -0,0 +1,231 @@ +/***************************************************************************/ +/* */ +/* autohint.h */ +/* */ +/* High-level `autohint' module-specific interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* The auto-hinter is used to load and automatically hint glyphs if a */ + /* format-specific hinter isn't available. */ + /* */ + /*************************************************************************/ + + +#ifndef __AUTOHINT_H__ +#define __AUTOHINT_H__ + + + /*************************************************************************/ + /* */ + /* A small technical note regarding automatic hinting in order to */ + /* clarify this module interface. */ + /* */ + /* An automatic hinter might compute two kinds of data for a given face: */ + /* */ + /* - global hints: Usually some metrics that describe global properties */ + /* of the face. It is computed by scanning more or less */ + /* aggressively the glyphs in the face, and thus can be */ + /* very slow to compute (even if the size of global */ + /* hints is really small). */ + /* */ + /* - glyph hints: These describe some important features of the glyph */ + /* outline, as well as how to align them. They are */ + /* generally much faster to compute than global hints. */ + /* */ + /* The current FreeType auto-hinter does a pretty good job while */ + /* performing fast computations for both global and glyph hints. */ + /* However, we might be interested in introducing more complex and */ + /* powerful algorithms in the future, like the one described in the John */ + /* D. Hobby paper, which unfortunately requires a lot more horsepower. */ + /* */ + /* Because a sufficiently sophisticated font management system would */ + /* typically implement an LRU cache of opened face objects to reduce */ + /* memory usage, it is a good idea to be able to avoid recomputing */ + /* global hints every time the same face is re-opened. */ + /* */ + /* We thus provide the ability to cache global hints outside of the face */ + /* object, in order to speed up font re-opening time. Of course, this */ + /* feature is purely optional, so most client programs won't even notice */ + /* it. */ + /* */ + /* I initially thought that it would be a good idea to cache the glyph */ + /* hints too. However, my general idea now is that if you really need */ + /* to cache these too, you are simply in need of a new font format, */ + /* where all this information could be stored within the font file and */ + /* decoded on the fly. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H + + +FT_BEGIN_HEADER + + + typedef struct FT_AutoHinterRec_ *FT_AutoHinter; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_AutoHinter_GlobalGetFunc */ + /* */ + /* <Description> */ + /* Retrieves the global hints computed for a given face object the */ + /* resulting data is dissociated from the face and will survive a */ + /* call to FT_Done_Face(). It must be discarded through the API */ + /* FT_AutoHinter_GlobalDoneFunc(). */ + /* */ + /* <Input> */ + /* hinter :: A handle to the source auto-hinter. */ + /* */ + /* face :: A handle to the source face object. */ + /* */ + /* <Output> */ + /* global_hints :: A typeless pointer to the global hints. */ + /* */ + /* global_len :: The size in bytes of the global hints. */ + /* */ + typedef void + (*FT_AutoHinter_GlobalGetFunc)( FT_AutoHinter hinter, + FT_Face face, + void** global_hints, + long* global_len ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_AutoHinter_GlobalDoneFunc */ + /* */ + /* <Description> */ + /* Discards the global hints retrieved through */ + /* FT_AutoHinter_GlobalGetFunc(). This is the only way these hints */ + /* are freed from memory. */ + /* */ + /* <Input> */ + /* hinter :: A handle to the auto-hinter module. */ + /* */ + /* global :: A pointer to retrieved global hints to discard. */ + /* */ + typedef void + (*FT_AutoHinter_GlobalDoneFunc)( FT_AutoHinter hinter, + void* global ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_AutoHinter_GlobalResetFunc */ + /* */ + /* <Description> */ + /* This function is used to recompute the global metrics in a given */ + /* font. This is useful when global font data changes (e.g. Multiple */ + /* Masters fonts where blend coordinates change). */ + /* */ + /* <Input> */ + /* hinter :: A handle to the source auto-hinter. */ + /* */ + /* face :: A handle to the face. */ + /* */ + typedef void + (*FT_AutoHinter_GlobalResetFunc)( FT_AutoHinter hinter, + FT_Face face ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_AutoHinter_GlyphLoadFunc */ + /* */ + /* <Description> */ + /* This function is used to load, scale, and automatically hint a */ + /* glyph from a given face. */ + /* */ + /* <Input> */ + /* face :: A handle to the face. */ + /* */ + /* glyph_index :: The glyph index. */ + /* */ + /* load_flags :: The load flags. */ + /* */ + /* <Note> */ + /* This function is capable of loading composite glyphs by hinting */ + /* each sub-glyph independently (which improves quality). */ + /* */ + /* It will call the font driver with FT_Load_Glyph(), with */ + /* FT_LOAD_NO_SCALE set. */ + /* */ + typedef FT_Error + (*FT_AutoHinter_GlyphLoadFunc)( FT_AutoHinter hinter, + FT_GlyphSlot slot, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_AutoHinter_ServiceRec */ + /* */ + /* <Description> */ + /* The auto-hinter module's interface. */ + /* */ + typedef struct FT_AutoHinter_ServiceRec_ + { + FT_AutoHinter_GlobalResetFunc reset_face; + FT_AutoHinter_GlobalGetFunc get_global_hints; + FT_AutoHinter_GlobalDoneFunc done_global_hints; + FT_AutoHinter_GlyphLoadFunc load_glyph; + + } FT_AutoHinter_ServiceRec, *FT_AutoHinter_Service; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_AUTOHINTER_SERVICE(class_, reset_face_, get_global_hints_, \ + done_global_hints_, load_glyph_) \ + FT_CALLBACK_TABLE_DEF \ + const FT_AutoHinter_ServiceRec class_ = \ + { \ + reset_face_, get_global_hints_, done_global_hints_, load_glyph_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_AUTOHINTER_SERVICE(class_, reset_face_, get_global_hints_, \ + done_global_hints_, load_glyph_) \ + void \ + FT_Init_Class_##class_( FT_Library library, \ + FT_AutoHinter_ServiceRec* clazz) \ + { \ + FT_UNUSED(library); \ + clazz->reset_face = reset_face_; \ + clazz->get_global_hints = get_global_hints_; \ + clazz->done_global_hints = done_global_hints_; \ + clazz->load_glyph = load_glyph_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + +FT_END_HEADER + +#endif /* __AUTOHINT_H__ */ + + +/* END */ diff --git a/include/freetype/internal/ftcalc.h b/include/freetype/internal/ftcalc.h new file mode 100644 index 0000000..f8b4324 --- /dev/null +++ b/include/freetype/internal/ftcalc.h @@ -0,0 +1,179 @@ +/***************************************************************************/ +/* */ +/* ftcalc.h */ +/* */ +/* Arithmetic computations (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTCALC_H__ +#define __FTCALC_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_FixedSqrt */ + /* */ + /* <Description> */ + /* Computes the square root of a 16.16 fixed point value. */ + /* */ + /* <Input> */ + /* x :: The value to compute the root for. */ + /* */ + /* <Return> */ + /* The result of `sqrt(x)'. */ + /* */ + /* <Note> */ + /* This function is not very fast. */ + /* */ + FT_BASE( FT_Int32 ) + FT_SqrtFixed( FT_Int32 x ); + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Sqrt32 */ + /* */ + /* <Description> */ + /* Computes the square root of an Int32 integer (which will be */ + /* handled as an unsigned long value). */ + /* */ + /* <Input> */ + /* x :: The value to compute the root for. */ + /* */ + /* <Return> */ + /* The result of `sqrt(x)'. */ + /* */ + FT_EXPORT( FT_Int32 ) + FT_Sqrt32( FT_Int32 x ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /*************************************************************************/ + /* */ + /* FT_MulDiv() and FT_MulFix() are declared in freetype.h. */ + /* */ + /*************************************************************************/ + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_MulDiv_No_Round */ + /* */ + /* <Description> */ + /* A very simple function used to perform the computation `(a*b)/c' */ + /* (without rounding) with maximal accuracy (it uses a 64-bit */ + /* intermediate integer whenever necessary). */ + /* */ + /* This function isn't necessarily as fast as some processor specific */ + /* operations, but is at least completely portable. */ + /* */ + /* <Input> */ + /* a :: The first multiplier. */ + /* b :: The second multiplier. */ + /* c :: The divisor. */ + /* */ + /* <Return> */ + /* The result of `(a*b)/c'. This function never traps when trying to */ + /* divide by zero; it simply returns `MaxInt' or `MinInt' depending */ + /* on the signs of `a' and `b'. */ + /* */ + FT_BASE( FT_Long ) + FT_MulDiv_No_Round( FT_Long a, + FT_Long b, + FT_Long c ); + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + /* + * A variant of FT_Matrix_Multiply which scales its result afterwards. + * The idea is that both `a' and `b' are scaled by factors of 10 so that + * the values are as precise as possible to get a correct result during + * the 64bit multiplication. Let `sa' and `sb' be the scaling factors of + * `a' and `b', respectively, then the scaling factor of the result is + * `sa*sb'. + */ + FT_BASE( void ) + FT_Matrix_Multiply_Scaled( const FT_Matrix* a, + FT_Matrix *b, + FT_Long scaling ); + + + /* + * A variant of FT_Vector_Transform. See comments for + * FT_Matrix_Multiply_Scaled. + */ + + FT_BASE( void ) + FT_Vector_Transform_Scaled( FT_Vector* vector, + const FT_Matrix* matrix, + FT_Long scaling ); + + + /* + * Return -1, 0, or +1, depending on the orientation of a given corner. + * We use the Cartesian coordinate system, with positive vertical values + * going upwards. The function returns +1 if the corner turns to the + * left, -1 to the right, and 0 for undecidable cases. + */ + FT_BASE( FT_Int ) + ft_corner_orientation( FT_Pos in_x, + FT_Pos in_y, + FT_Pos out_x, + FT_Pos out_y ); + + /* + * Return TRUE if a corner is flat or nearly flat. This is equivalent to + * saying that the angle difference between the `in' and `out' vectors is + * very small. + */ + FT_BASE( FT_Int ) + ft_corner_is_flat( FT_Pos in_x, + FT_Pos in_y, + FT_Pos out_x, + FT_Pos out_y ); + + +#define INT_TO_F26DOT6( x ) ( (FT_Long)(x) << 6 ) +#define INT_TO_F2DOT14( x ) ( (FT_Long)(x) << 14 ) +#define INT_TO_FIXED( x ) ( (FT_Long)(x) << 16 ) +#define F2DOT14_TO_FIXED( x ) ( (FT_Long)(x) << 2 ) +#define FLOAT_TO_FIXED( x ) ( (FT_Long)( x * 65536.0 ) ) +#define FIXED_TO_INT( x ) ( FT_RoundFix( x ) >> 16 ) + +#define ROUND_F26DOT6( x ) ( x >= 0 ? ( ( (x) + 32 ) & -64 ) \ + : ( -( ( 32 - (x) ) & -64 ) ) ) + + +FT_END_HEADER + +#endif /* __FTCALC_H__ */ + + +/* END */ diff --git a/include/freetype/internal/ftdebug.h b/include/freetype/internal/ftdebug.h new file mode 100644 index 0000000..7baae35 --- /dev/null +++ b/include/freetype/internal/ftdebug.h @@ -0,0 +1,250 @@ +/***************************************************************************/ +/* */ +/* ftdebug.h */ +/* */ +/* Debugging and logging component (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2006, 2007, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/* */ +/* IMPORTANT: A description of FreeType's debugging support can be */ +/* found in `docs/DEBUG.TXT'. Read it if you need to use or */ +/* understand this code. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTDEBUG_H__ +#define __FTDEBUG_H__ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_FREETYPE_H + + +FT_BEGIN_HEADER + + + /* force the definition of FT_DEBUG_LEVEL_ERROR if FT_DEBUG_LEVEL_TRACE */ + /* is already defined; this simplifies the following #ifdefs */ + /* */ +#ifdef FT_DEBUG_LEVEL_TRACE +#undef FT_DEBUG_LEVEL_ERROR +#define FT_DEBUG_LEVEL_ERROR +#endif + + + /*************************************************************************/ + /* */ + /* Define the trace enums as well as the trace levels array when they */ + /* are needed. */ + /* */ + /*************************************************************************/ + +#ifdef FT_DEBUG_LEVEL_TRACE + +#define FT_TRACE_DEF( x ) trace_ ## x , + + /* defining the enumeration */ + typedef enum FT_Trace_ + { +#include FT_INTERNAL_TRACE_H + trace_count + + } FT_Trace; + + + /* defining the array of trace levels, provided by `src/base/ftdebug.c' */ + extern int ft_trace_levels[trace_count]; + +#undef FT_TRACE_DEF + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + + /*************************************************************************/ + /* */ + /* Define the FT_TRACE macro */ + /* */ + /* IMPORTANT! */ + /* */ + /* Each component must define the macro FT_COMPONENT to a valid FT_Trace */ + /* value before using any TRACE macro. */ + /* */ + /*************************************************************************/ + +#ifdef FT_DEBUG_LEVEL_TRACE + +#define FT_TRACE( level, varformat ) \ + do \ + { \ + if ( ft_trace_levels[FT_COMPONENT] >= level ) \ + FT_Message varformat; \ + } while ( 0 ) + +#else /* !FT_DEBUG_LEVEL_TRACE */ + +#define FT_TRACE( level, varformat ) do { } while ( 0 ) /* nothing */ + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Trace_Get_Count */ + /* */ + /* <Description> */ + /* Return the number of available trace components. */ + /* */ + /* <Return> */ + /* The number of trace components. 0 if FreeType 2 is not built with */ + /* FT_DEBUG_LEVEL_TRACE definition. */ + /* */ + /* <Note> */ + /* This function may be useful if you want to access elements of */ + /* the internal `ft_trace_levels' array by an index. */ + /* */ + FT_BASE( FT_Int ) + FT_Trace_Get_Count( void ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Trace_Get_Name */ + /* */ + /* <Description> */ + /* Return the name of a trace component. */ + /* */ + /* <Input> */ + /* The index of the trace component. */ + /* */ + /* <Return> */ + /* The name of the trace component. This is a statically allocated */ + /* C string, so do not free it after use. NULL if FreeType 2 is not */ + /* built with FT_DEBUG_LEVEL_TRACE definition. */ + /* */ + /* <Note> */ + /* Use @FT_Trace_Get_Count to get the number of available trace */ + /* components. */ + /* */ + /* This function may be useful if you want to control FreeType 2's */ + /* debug level in your application. */ + /* */ + FT_BASE( const char * ) + FT_Trace_Get_Name( FT_Int idx ); + + + /*************************************************************************/ + /* */ + /* You need two opening and closing parentheses! */ + /* */ + /* Example: FT_TRACE0(( "Value is %i", foo )) */ + /* */ + /* Output of the FT_TRACEX macros is sent to stderr. */ + /* */ + /*************************************************************************/ + +#define FT_TRACE0( varformat ) FT_TRACE( 0, varformat ) +#define FT_TRACE1( varformat ) FT_TRACE( 1, varformat ) +#define FT_TRACE2( varformat ) FT_TRACE( 2, varformat ) +#define FT_TRACE3( varformat ) FT_TRACE( 3, varformat ) +#define FT_TRACE4( varformat ) FT_TRACE( 4, varformat ) +#define FT_TRACE5( varformat ) FT_TRACE( 5, varformat ) +#define FT_TRACE6( varformat ) FT_TRACE( 6, varformat ) +#define FT_TRACE7( varformat ) FT_TRACE( 7, varformat ) + + + /*************************************************************************/ + /* */ + /* Define the FT_ERROR macro. */ + /* */ + /* Output of this macro is sent to stderr. */ + /* */ + /*************************************************************************/ + +#ifdef FT_DEBUG_LEVEL_ERROR + +#define FT_ERROR( varformat ) FT_Message varformat + +#else /* !FT_DEBUG_LEVEL_ERROR */ + +#define FT_ERROR( varformat ) do { } while ( 0 ) /* nothing */ + +#endif /* !FT_DEBUG_LEVEL_ERROR */ + + + /*************************************************************************/ + /* */ + /* Define the FT_ASSERT macro. */ + /* */ + /*************************************************************************/ + +#ifdef FT_DEBUG_LEVEL_ERROR + +#define FT_ASSERT( condition ) \ + do \ + { \ + if ( !( condition ) ) \ + FT_Panic( "assertion failed on line %d of file %s\n", \ + __LINE__, __FILE__ ); \ + } while ( 0 ) + +#else /* !FT_DEBUG_LEVEL_ERROR */ + +#define FT_ASSERT( condition ) do { } while ( 0 ) + +#endif /* !FT_DEBUG_LEVEL_ERROR */ + + + /*************************************************************************/ + /* */ + /* Define `FT_Message' and `FT_Panic' when needed. */ + /* */ + /*************************************************************************/ + +#ifdef FT_DEBUG_LEVEL_ERROR + +#include "stdio.h" /* for vfprintf() */ + + /* print a message */ + FT_BASE( void ) + FT_Message( const char* fmt, + ... ); + + /* print a message and exit */ + FT_BASE( void ) + FT_Panic( const char* fmt, + ... ); + +#endif /* FT_DEBUG_LEVEL_ERROR */ + + + FT_BASE( void ) + ft_debug_init( void ); + + +#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */ + + /* We disable the warning `conditional expression is constant' here */ + /* in order to compile cleanly with the maximum level of warnings. */ +#pragma warning( disable : 4127 ) + +#endif /* _MSC_VER */ + + +FT_END_HEADER + +#endif /* __FTDEBUG_H__ */ + + +/* END */ diff --git a/include/freetype/internal/ftdriver.h b/include/freetype/internal/ftdriver.h new file mode 100644 index 0000000..6f6b206 --- /dev/null +++ b/include/freetype/internal/ftdriver.h @@ -0,0 +1,421 @@ +/***************************************************************************/ +/* */ +/* ftdriver.h */ +/* */ +/* FreeType font driver interface (specification). */ +/* */ +/* Copyright 1996-2003, 2006, 2008, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTDRIVER_H__ +#define __FTDRIVER_H__ + + +#include <ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + + + typedef FT_Error + (*FT_Face_InitFunc)( FT_Stream stream, + FT_Face face, + FT_Int typeface_index, + FT_Int num_params, + FT_Parameter* parameters ); + + typedef void + (*FT_Face_DoneFunc)( FT_Face face ); + + + typedef FT_Error + (*FT_Size_InitFunc)( FT_Size size ); + + typedef void + (*FT_Size_DoneFunc)( FT_Size size ); + + + typedef FT_Error + (*FT_Slot_InitFunc)( FT_GlyphSlot slot ); + + typedef void + (*FT_Slot_DoneFunc)( FT_GlyphSlot slot ); + + + typedef FT_Error + (*FT_Size_RequestFunc)( FT_Size size, + FT_Size_Request req ); + + typedef FT_Error + (*FT_Size_SelectFunc)( FT_Size size, + FT_ULong size_index ); + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + typedef FT_Error + (*FT_Size_ResetPointsFunc)( FT_Size size, + FT_F26Dot6 char_width, + FT_F26Dot6 char_height, + FT_UInt horz_resolution, + FT_UInt vert_resolution ); + + typedef FT_Error + (*FT_Size_ResetPixelsFunc)( FT_Size size, + FT_UInt pixel_width, + FT_UInt pixel_height ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + typedef FT_Error + (*FT_Slot_LoadFunc)( FT_GlyphSlot slot, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + + typedef FT_UInt + (*FT_CharMap_CharIndexFunc)( FT_CharMap charmap, + FT_Long charcode ); + + typedef FT_Long + (*FT_CharMap_CharNextFunc)( FT_CharMap charmap, + FT_Long charcode ); + + + typedef FT_Error + (*FT_Face_GetKerningFunc)( FT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_Vector* kerning ); + + + typedef FT_Error + (*FT_Face_AttachFunc)( FT_Face face, + FT_Stream stream ); + + + typedef FT_Error + (*FT_Face_GetAdvancesFunc)( FT_Face face, + FT_UInt first, + FT_UInt count, + FT_Int32 flags, + FT_Fixed* advances ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Driver_ClassRec */ + /* */ + /* <Description> */ + /* The font driver class. This structure mostly contains pointers to */ + /* driver methods. */ + /* */ + /* <Fields> */ + /* root :: The parent module. */ + /* */ + /* face_object_size :: The size of a face object in bytes. */ + /* */ + /* size_object_size :: The size of a size object in bytes. */ + /* */ + /* slot_object_size :: The size of a glyph object in bytes. */ + /* */ + /* init_face :: The format-specific face constructor. */ + /* */ + /* done_face :: The format-specific face destructor. */ + /* */ + /* init_size :: The format-specific size constructor. */ + /* */ + /* done_size :: The format-specific size destructor. */ + /* */ + /* init_slot :: The format-specific slot constructor. */ + /* */ + /* done_slot :: The format-specific slot destructor. */ + /* */ + /* */ + /* load_glyph :: A function handle to load a glyph to a slot. */ + /* This field is mandatory! */ + /* */ + /* get_kerning :: A function handle to return the unscaled */ + /* kerning for a given pair of glyphs. Can be */ + /* set to 0 if the format doesn't support */ + /* kerning. */ + /* */ + /* attach_file :: This function handle is used to read */ + /* additional data for a face from another */ + /* file/stream. For example, this can be used to */ + /* add data from AFM or PFM files on a Type 1 */ + /* face, or a CIDMap on a CID-keyed face. */ + /* */ + /* get_advances :: A function handle used to return advance */ + /* widths of `count' glyphs (in font units), */ + /* starting at `first'. The `vertical' flag must */ + /* be set to get vertical advance heights. The */ + /* `advances' buffer is caller-allocated. */ + /* The idea of this function is to be able to */ + /* perform device-independent text layout without */ + /* loading a single glyph image. */ + /* */ + /* request_size :: A handle to a function used to request the new */ + /* character size. Can be set to 0 if the */ + /* scaling done in the base layer suffices. */ + /* */ + /* select_size :: A handle to a function used to select a new */ + /* fixed size. It is used only if */ + /* @FT_FACE_FLAG_FIXED_SIZES is set. Can be set */ + /* to 0 if the scaling done in the base layer */ + /* suffices. */ + /* <Note> */ + /* Most function pointers, with the exception of `load_glyph', can be */ + /* set to 0 to indicate a default behaviour. */ + /* */ + typedef struct FT_Driver_ClassRec_ + { + FT_Module_Class root; + + FT_Long face_object_size; + FT_Long size_object_size; + FT_Long slot_object_size; + + FT_Face_InitFunc init_face; + FT_Face_DoneFunc done_face; + + FT_Size_InitFunc init_size; + FT_Size_DoneFunc done_size; + + FT_Slot_InitFunc init_slot; + FT_Slot_DoneFunc done_slot; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_Size_ResetPointsFunc set_char_sizes; + FT_Size_ResetPixelsFunc set_pixel_sizes; + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + FT_Slot_LoadFunc load_glyph; + + FT_Face_GetKerningFunc get_kerning; + FT_Face_AttachFunc attach_file; + FT_Face_GetAdvancesFunc get_advances; + + /* since version 2.2 */ + FT_Size_RequestFunc request_size; + FT_Size_SelectFunc select_size; + + } FT_Driver_ClassRec, *FT_Driver_Class; + + + /* + * The following functions are used as stubs for `set_char_sizes' and + * `set_pixel_sizes'; the code uses `request_size' and `select_size' + * functions instead. + * + * Implementation is in `src/base/ftobjs.c'. + */ +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_BASE( FT_Error ) + ft_stub_set_char_sizes( FT_Size size, + FT_F26Dot6 width, + FT_F26Dot6 height, + FT_UInt horz_res, + FT_UInt vert_res ); + + FT_BASE( FT_Error ) + ft_stub_set_pixel_sizes( FT_Size size, + FT_UInt width, + FT_UInt height ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DECLARE_DRIVER */ + /* */ + /* <Description> */ + /* Used to create a forward declaration of a */ + /* FT_Driver_ClassRec stract instance. */ + /* */ + /* <Macro> */ + /* FT_DEFINE_DRIVER */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Driver_ClassRec struct. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */ + /* to called with a pointer where the allocated stracture is returned.*/ + /* And when it is no longer needed a Destroy function needs */ + /* to be called to release that allocation. */ + /* fcinit.c (ft_create_default_module_classes) already contains */ + /* a mechanism to call these functions for the default modules */ + /* described in ftmodule.h */ + /* */ + /* Notice that the created Create and Destroy functions call */ + /* pic_init and pic_free function to allow you to manually allocate */ + /* and initialize any additional global data, like module specific */ + /* interface, and put them in the global pic container defined in */ + /* ftpic.h. if you don't need them just implement the functions as */ + /* empty to resolve the link error. Also the pic_init and pic_free */ + /* functions should be declared in pic.h, to be referred by driver */ + /* definition calling FT_DEFINE_DRIVER() in following. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS +#define FT_DEFINE_DRIVERS_OLD_INTERNALS(a_,b_) \ + a_, b_, +#else + #define FT_DEFINE_DRIVERS_OLD_INTERNALS(a_,b_) +#endif + +#define FT_DECLARE_DRIVER(class_) \ + FT_CALLBACK_TABLE \ + const FT_Driver_ClassRec class_; + +#define FT_DEFINE_DRIVER(class_, \ + flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_, \ + face_object_size_, size_object_size_, \ + slot_object_size_, init_face_, done_face_, \ + init_size_, done_size_, init_slot_, done_slot_, \ + old_set_char_sizes_, old_set_pixel_sizes_, \ + load_glyph_, get_kerning_, attach_file_, \ + get_advances_, request_size_, select_size_ ) \ + FT_CALLBACK_TABLE_DEF \ + const FT_Driver_ClassRec class_ = \ + { \ + FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_,interface_, \ + init_,done_,get_interface_) \ + \ + face_object_size_, \ + size_object_size_, \ + slot_object_size_, \ + \ + init_face_, \ + done_face_, \ + \ + init_size_, \ + done_size_, \ + \ + init_slot_, \ + done_slot_, \ + \ + FT_DEFINE_DRIVERS_OLD_INTERNALS(old_set_char_sizes_, old_set_pixel_sizes_) \ + \ + load_glyph_, \ + \ + get_kerning_, \ + attach_file_, \ + get_advances_, \ + \ + request_size_, \ + select_size_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS +#define FT_DEFINE_DRIVERS_OLD_INTERNALS(a_,b_) \ + clazz->set_char_sizes = a_; \ + clazz->set_pixel_sizes = b_; +#else + #define FT_DEFINE_DRIVERS_OLD_INTERNALS(a_,b_) +#endif + +#define FT_DECLARE_DRIVER(class_) FT_DECLARE_MODULE(class_) + +#define FT_DEFINE_DRIVER(class_, \ + flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_, \ + face_object_size_, size_object_size_, \ + slot_object_size_, init_face_, done_face_, \ + init_size_, done_size_, init_slot_, done_slot_, \ + old_set_char_sizes_, old_set_pixel_sizes_, \ + load_glyph_, get_kerning_, attach_file_, \ + get_advances_, request_size_, select_size_ ) \ + \ + void \ + FT_Destroy_Class_##class_( FT_Library library, \ + FT_Module_Class* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + FT_Driver_Class dclazz = (FT_Driver_Class)clazz; \ + class_##_pic_free( library ); \ + if ( dclazz ) \ + FT_FREE( dclazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_##class_( FT_Library library, \ + FT_Module_Class** output_class ) \ + { \ + FT_Driver_Class clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \ + return error; \ + \ + error = class_##_pic_init( library ); \ + if(error) \ + { \ + FT_FREE( clazz ); \ + return error; \ + } \ + \ + FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_,interface_, \ + init_,done_,get_interface_) \ + \ + clazz->face_object_size = face_object_size_; \ + clazz->size_object_size = size_object_size_; \ + clazz->slot_object_size = slot_object_size_; \ + \ + clazz->init_face = init_face_; \ + clazz->done_face = done_face_; \ + \ + clazz->init_size = init_size_; \ + clazz->done_size = done_size_; \ + \ + clazz->init_slot = init_slot_; \ + clazz->done_slot = done_slot_; \ + \ + FT_DEFINE_DRIVERS_OLD_INTERNALS(old_set_char_sizes_, old_set_pixel_sizes_) \ + \ + clazz->load_glyph = load_glyph_; \ + \ + clazz->get_kerning = get_kerning_; \ + clazz->attach_file = attach_file_; \ + clazz->get_advances = get_advances_; \ + \ + clazz->request_size = request_size_; \ + clazz->select_size = select_size_; \ + \ + *output_class = (FT_Module_Class*)clazz; \ + return FT_Err_Ok; \ + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + +FT_END_HEADER + +#endif /* __FTDRIVER_H__ */ + + +/* END */ diff --git a/include/freetype/internal/ftgloadr.h b/include/freetype/internal/ftgloadr.h new file mode 100644 index 0000000..ce4dc6c --- /dev/null +++ b/include/freetype/internal/ftgloadr.h @@ -0,0 +1,168 @@ +/***************************************************************************/ +/* */ +/* ftgloadr.h */ +/* */ +/* The FreeType glyph loader (specification). */ +/* */ +/* Copyright 2002, 2003, 2005, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTGLOADR_H__ +#define __FTGLOADR_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_GlyphLoader */ + /* */ + /* <Description> */ + /* The glyph loader is an internal object used to load several glyphs */ + /* together (for example, in the case of composites). */ + /* */ + /* <Note> */ + /* The glyph loader implementation is not part of the high-level API, */ + /* hence the forward structure declaration. */ + /* */ + typedef struct FT_GlyphLoaderRec_* FT_GlyphLoader ; + + +#if 0 /* moved to freetype.h in version 2.2 */ +#define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1 +#define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2 +#define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4 +#define FT_SUBGLYPH_FLAG_SCALE 8 +#define FT_SUBGLYPH_FLAG_XY_SCALE 0x40 +#define FT_SUBGLYPH_FLAG_2X2 0x80 +#define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200 +#endif + + + typedef struct FT_SubGlyphRec_ + { + FT_Int index; + FT_UShort flags; + FT_Int arg1; + FT_Int arg2; + FT_Matrix transform; + + } FT_SubGlyphRec; + + + typedef struct FT_GlyphLoadRec_ + { + FT_Outline outline; /* outline */ + FT_Vector* extra_points; /* extra points table */ + FT_Vector* extra_points2; /* second extra points table */ + FT_UInt num_subglyphs; /* number of subglyphs */ + FT_SubGlyph subglyphs; /* subglyphs */ + + } FT_GlyphLoadRec, *FT_GlyphLoad; + + + typedef struct FT_GlyphLoaderRec_ + { + FT_Memory memory; + FT_UInt max_points; + FT_UInt max_contours; + FT_UInt max_subglyphs; + FT_Bool use_extra; + + FT_GlyphLoadRec base; + FT_GlyphLoadRec current; + + void* other; /* for possible future extension? */ + + } FT_GlyphLoaderRec; + + + /* create new empty glyph loader */ + FT_BASE( FT_Error ) + FT_GlyphLoader_New( FT_Memory memory, + FT_GlyphLoader *aloader ); + + /* add an extra points table to a glyph loader */ + FT_BASE( FT_Error ) + FT_GlyphLoader_CreateExtra( FT_GlyphLoader loader ); + + /* destroy a glyph loader */ + FT_BASE( void ) + FT_GlyphLoader_Done( FT_GlyphLoader loader ); + + /* reset a glyph loader (frees everything int it) */ + FT_BASE( void ) + FT_GlyphLoader_Reset( FT_GlyphLoader loader ); + + /* rewind a glyph loader */ + FT_BASE( void ) + FT_GlyphLoader_Rewind( FT_GlyphLoader loader ); + + /* check that there is enough space to add `n_points' and `n_contours' */ + /* to the glyph loader */ + FT_BASE( FT_Error ) + FT_GlyphLoader_CheckPoints( FT_GlyphLoader loader, + FT_UInt n_points, + FT_UInt n_contours ); + + +#define FT_GLYPHLOADER_CHECK_P( _loader, _count ) \ + ( (_count) == 0 || ((_loader)->base.outline.n_points + \ + (_loader)->current.outline.n_points + \ + (unsigned long)(_count)) <= (_loader)->max_points ) + +#define FT_GLYPHLOADER_CHECK_C( _loader, _count ) \ + ( (_count) == 0 || ((_loader)->base.outline.n_contours + \ + (_loader)->current.outline.n_contours + \ + (unsigned long)(_count)) <= (_loader)->max_contours ) + +#define FT_GLYPHLOADER_CHECK_POINTS( _loader, _points,_contours ) \ + ( ( FT_GLYPHLOADER_CHECK_P( _loader, _points ) && \ + FT_GLYPHLOADER_CHECK_C( _loader, _contours ) ) \ + ? 0 \ + : FT_GlyphLoader_CheckPoints( (_loader), (_points), (_contours) ) ) + + + /* check that there is enough space to add `n_subs' sub-glyphs to */ + /* a glyph loader */ + FT_BASE( FT_Error ) + FT_GlyphLoader_CheckSubGlyphs( FT_GlyphLoader loader, + FT_UInt n_subs ); + + /* prepare a glyph loader, i.e. empty the current glyph */ + FT_BASE( void ) + FT_GlyphLoader_Prepare( FT_GlyphLoader loader ); + + /* add the current glyph to the base glyph */ + FT_BASE( void ) + FT_GlyphLoader_Add( FT_GlyphLoader loader ); + + /* copy points from one glyph loader to another */ + FT_BASE( FT_Error ) + FT_GlyphLoader_CopyPoints( FT_GlyphLoader target, + FT_GlyphLoader source ); + + /* */ + + +FT_END_HEADER + +#endif /* __FTGLOADR_H__ */ + + +/* END */ diff --git a/include/freetype/internal/ftmemory.h b/include/freetype/internal/ftmemory.h new file mode 100644 index 0000000..026aa63 --- /dev/null +++ b/include/freetype/internal/ftmemory.h @@ -0,0 +1,380 @@ +/***************************************************************************/ +/* */ +/* ftmemory.h */ +/* */ +/* The FreeType memory management macros (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTMEMORY_H__ +#define __FTMEMORY_H__ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_TYPES_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_SET_ERROR */ + /* */ + /* <Description> */ + /* This macro is used to set an implicit `error' variable to a given */ + /* expression's value (usually a function call), and convert it to a */ + /* boolean which is set whenever the value is != 0. */ + /* */ +#undef FT_SET_ERROR +#define FT_SET_ERROR( expression ) \ + ( ( error = (expression) ) != 0 ) + + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** M E M O R Y ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* + * C++ refuses to handle statements like p = (void*)anything, with `p' a + * typed pointer. Since we don't have a `typeof' operator in standard + * C++, we have to use a template to emulate it. + */ + +#ifdef __cplusplus + + extern "C++" + template <typename T> inline T* + cplusplus_typeof( T*, + void *v ) + { + return static_cast <T*> ( v ); + } + +#define FT_ASSIGNP( p, val ) (p) = cplusplus_typeof( (p), (val) ) + +#else + +#define FT_ASSIGNP( p, val ) (p) = (val) + +#endif + + + +#ifdef FT_DEBUG_MEMORY + + FT_BASE( const char* ) _ft_debug_file; + FT_BASE( long ) _ft_debug_lineno; + +#define FT_DEBUG_INNER( exp ) ( _ft_debug_file = __FILE__, \ + _ft_debug_lineno = __LINE__, \ + (exp) ) + +#define FT_ASSIGNP_INNER( p, exp ) ( _ft_debug_file = __FILE__, \ + _ft_debug_lineno = __LINE__, \ + FT_ASSIGNP( p, exp ) ) + +#else /* !FT_DEBUG_MEMORY */ + +#define FT_DEBUG_INNER( exp ) (exp) +#define FT_ASSIGNP_INNER( p, exp ) FT_ASSIGNP( p, exp ) + +#endif /* !FT_DEBUG_MEMORY */ + + + /* + * The allocation functions return a pointer, and the error code + * is written to through the `p_error' parameter. See below for + * for documentation. + */ + + FT_BASE( FT_Pointer ) + ft_mem_alloc( FT_Memory memory, + FT_Long size, + FT_Error *p_error ); + + FT_BASE( FT_Pointer ) + ft_mem_qalloc( FT_Memory memory, + FT_Long size, + FT_Error *p_error ); + + FT_BASE( FT_Pointer ) + ft_mem_realloc( FT_Memory memory, + FT_Long item_size, + FT_Long cur_count, + FT_Long new_count, + void* block, + FT_Error *p_error ); + + FT_BASE( FT_Pointer ) + ft_mem_qrealloc( FT_Memory memory, + FT_Long item_size, + FT_Long cur_count, + FT_Long new_count, + void* block, + FT_Error *p_error ); + + FT_BASE( void ) + ft_mem_free( FT_Memory memory, + const void* P ); + + +#define FT_MEM_ALLOC( ptr, size ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_alloc( memory, (size), &error ) ) + +#define FT_MEM_FREE( ptr ) \ + FT_BEGIN_STMNT \ + ft_mem_free( memory, (ptr) ); \ + (ptr) = NULL; \ + FT_END_STMNT + +#define FT_MEM_NEW( ptr ) \ + FT_MEM_ALLOC( ptr, sizeof ( *(ptr) ) ) + +#define FT_MEM_REALLOC( ptr, cursz, newsz ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, 1, \ + (cursz), (newsz), \ + (ptr), &error ) ) + +#define FT_MEM_QALLOC( ptr, size ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qalloc( memory, (size), &error ) ) + +#define FT_MEM_QNEW( ptr ) \ + FT_MEM_QALLOC( ptr, sizeof ( *(ptr) ) ) + +#define FT_MEM_QREALLOC( ptr, cursz, newsz ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, 1, \ + (cursz), (newsz), \ + (ptr), &error ) ) + +#define FT_MEM_QRENEW_ARRAY( ptr, cursz, newsz ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, sizeof ( *(ptr) ), \ + (cursz), (newsz), \ + (ptr), &error ) ) + +#define FT_MEM_ALLOC_MULT( ptr, count, item_size ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, (item_size), \ + 0, (count), \ + NULL, &error ) ) + +#define FT_MEM_REALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, (itmsz), \ + (oldcnt), (newcnt), \ + (ptr), &error ) ) + +#define FT_MEM_QALLOC_MULT( ptr, count, item_size ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, (item_size), \ + 0, (count), \ + NULL, &error ) ) + +#define FT_MEM_QREALLOC_MULT( ptr, oldcnt, newcnt, itmsz) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, (itmsz), \ + (oldcnt), (newcnt), \ + (ptr), &error ) ) + + +#define FT_MEM_SET_ERROR( cond ) ( (cond), error != 0 ) + + +#define FT_MEM_SET( dest, byte, count ) ft_memset( dest, byte, count ) + +#define FT_MEM_COPY( dest, source, count ) ft_memcpy( dest, source, count ) + +#define FT_MEM_MOVE( dest, source, count ) ft_memmove( dest, source, count ) + + +#define FT_MEM_ZERO( dest, count ) FT_MEM_SET( dest, 0, count ) + +#define FT_ZERO( p ) FT_MEM_ZERO( p, sizeof ( *(p) ) ) + + +#define FT_ARRAY_ZERO( dest, count ) \ + FT_MEM_ZERO( dest, (count) * sizeof ( *(dest) ) ) + +#define FT_ARRAY_COPY( dest, source, count ) \ + FT_MEM_COPY( dest, source, (count) * sizeof ( *(dest) ) ) + +#define FT_ARRAY_MOVE( dest, source, count ) \ + FT_MEM_MOVE( dest, source, (count) * sizeof ( *(dest) ) ) + + + /* + * Return the maximum number of addressable elements in an array. + * We limit ourselves to INT_MAX, rather than UINT_MAX, to avoid + * any problems. + */ +#define FT_ARRAY_MAX( ptr ) ( FT_INT_MAX / sizeof ( *(ptr) ) ) + +#define FT_ARRAY_CHECK( ptr, count ) ( (count) <= FT_ARRAY_MAX( ptr ) ) + + + /*************************************************************************/ + /* */ + /* The following functions macros expect that their pointer argument is */ + /* _typed_ in order to automatically compute array element sizes. */ + /* */ + +#define FT_MEM_NEW_ARRAY( ptr, count ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, sizeof ( *(ptr) ), \ + 0, (count), \ + NULL, &error ) ) + +#define FT_MEM_RENEW_ARRAY( ptr, cursz, newsz ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, sizeof ( *(ptr) ), \ + (cursz), (newsz), \ + (ptr), &error ) ) + +#define FT_MEM_QNEW_ARRAY( ptr, count ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, sizeof ( *(ptr) ), \ + 0, (count), \ + NULL, &error ) ) + +#define FT_MEM_QRENEW_ARRAY( ptr, cursz, newsz ) \ + FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, sizeof ( *(ptr) ), \ + (cursz), (newsz), \ + (ptr), &error ) ) + + +#define FT_ALLOC( ptr, size ) \ + FT_MEM_SET_ERROR( FT_MEM_ALLOC( ptr, size ) ) + +#define FT_REALLOC( ptr, cursz, newsz ) \ + FT_MEM_SET_ERROR( FT_MEM_REALLOC( ptr, cursz, newsz ) ) + +#define FT_ALLOC_MULT( ptr, count, item_size ) \ + FT_MEM_SET_ERROR( FT_MEM_ALLOC_MULT( ptr, count, item_size ) ) + +#define FT_REALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \ + FT_MEM_SET_ERROR( FT_MEM_REALLOC_MULT( ptr, oldcnt, \ + newcnt, itmsz ) ) + +#define FT_QALLOC( ptr, size ) \ + FT_MEM_SET_ERROR( FT_MEM_QALLOC( ptr, size ) ) + +#define FT_QREALLOC( ptr, cursz, newsz ) \ + FT_MEM_SET_ERROR( FT_MEM_QREALLOC( ptr, cursz, newsz ) ) + +#define FT_QALLOC_MULT( ptr, count, item_size ) \ + FT_MEM_SET_ERROR( FT_MEM_QALLOC_MULT( ptr, count, item_size ) ) + +#define FT_QREALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \ + FT_MEM_SET_ERROR( FT_MEM_QREALLOC_MULT( ptr, oldcnt, \ + newcnt, itmsz ) ) + +#define FT_FREE( ptr ) FT_MEM_FREE( ptr ) + +#define FT_NEW( ptr ) FT_MEM_SET_ERROR( FT_MEM_NEW( ptr ) ) + +#define FT_NEW_ARRAY( ptr, count ) \ + FT_MEM_SET_ERROR( FT_MEM_NEW_ARRAY( ptr, count ) ) + +#define FT_RENEW_ARRAY( ptr, curcnt, newcnt ) \ + FT_MEM_SET_ERROR( FT_MEM_RENEW_ARRAY( ptr, curcnt, newcnt ) ) + +#define FT_QNEW( ptr ) \ + FT_MEM_SET_ERROR( FT_MEM_QNEW( ptr ) ) + +#define FT_QNEW_ARRAY( ptr, count ) \ + FT_MEM_SET_ERROR( FT_MEM_NEW_ARRAY( ptr, count ) ) + +#define FT_QRENEW_ARRAY( ptr, curcnt, newcnt ) \ + FT_MEM_SET_ERROR( FT_MEM_RENEW_ARRAY( ptr, curcnt, newcnt ) ) + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_BASE( FT_Error ) + FT_Alloc( FT_Memory memory, + FT_Long size, + void* *P ); + + FT_BASE( FT_Error ) + FT_QAlloc( FT_Memory memory, + FT_Long size, + void* *p ); + + FT_BASE( FT_Error ) + FT_Realloc( FT_Memory memory, + FT_Long current, + FT_Long size, + void* *P ); + + FT_BASE( FT_Error ) + FT_QRealloc( FT_Memory memory, + FT_Long current, + FT_Long size, + void* *p ); + + FT_BASE( void ) + FT_Free( FT_Memory memory, + void* *P ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + FT_BASE( FT_Pointer ) + ft_mem_strdup( FT_Memory memory, + const char* str, + FT_Error *p_error ); + + FT_BASE( FT_Pointer ) + ft_mem_dup( FT_Memory memory, + const void* address, + FT_ULong size, + FT_Error *p_error ); + +#define FT_MEM_STRDUP( dst, str ) \ + (dst) = (char*)ft_mem_strdup( memory, (const char*)(str), &error ) + +#define FT_STRDUP( dst, str ) \ + FT_MEM_SET_ERROR( FT_MEM_STRDUP( dst, str ) ) + +#define FT_MEM_DUP( dst, address, size ) \ + (dst) = ft_mem_dup( memory, (address), (FT_ULong)(size), &error ) + +#define FT_DUP( dst, address, size ) \ + FT_MEM_SET_ERROR( FT_MEM_DUP( dst, address, size ) ) + + + /* Return >= 1 if a truncation occurs. */ + /* Return 0 if the source string fits the buffer. */ + /* This is *not* the same as strlcpy(). */ + FT_BASE( FT_Int ) + ft_mem_strcpyn( char* dst, + const char* src, + FT_ULong size ); + +#define FT_STRCPYN( dst, src, size ) \ + ft_mem_strcpyn( (char*)dst, (const char*)(src), (FT_ULong)(size) ) + + /* */ + + +FT_END_HEADER + +#endif /* __FTMEMORY_H__ */ + + +/* END */ diff --git a/include/freetype/internal/ftobjs.h b/include/freetype/internal/ftobjs.h new file mode 100644 index 0000000..fc18275 --- /dev/null +++ b/include/freetype/internal/ftobjs.h @@ -0,0 +1,1413 @@ +/***************************************************************************/ +/* */ +/* ftobjs.h */ +/* */ +/* The FreeType private base classes (specification). */ +/* */ +/* Copyright 1996-2006, 2008, 2010, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file contains the definition of all internal FreeType classes. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTOBJS_H__ +#define __FTOBJS_H__ + +#include <ft2build.h> +#include FT_RENDER_H +#include FT_SIZES_H +#include FT_LCD_FILTER_H +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_GLYPH_LOADER_H +#include FT_INTERNAL_DRIVER_H +#include FT_INTERNAL_AUTOHINT_H +#include FT_INTERNAL_SERVICE_H +#include FT_INTERNAL_PIC_H + +#ifdef FT_CONFIG_OPTION_INCREMENTAL +#include FT_INCREMENTAL_H +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* Some generic definitions. */ + /* */ +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + +#ifndef NULL +#define NULL (void*)0 +#endif + + + /*************************************************************************/ + /* */ + /* The min and max functions missing in C. As usual, be careful not to */ + /* write things like FT_MIN( a++, b++ ) to avoid side effects. */ + /* */ +#define FT_MIN( a, b ) ( (a) < (b) ? (a) : (b) ) +#define FT_MAX( a, b ) ( (a) > (b) ? (a) : (b) ) + +#define FT_ABS( a ) ( (a) < 0 ? -(a) : (a) ) + + +#define FT_PAD_FLOOR( x, n ) ( (x) & ~((n)-1) ) +#define FT_PAD_ROUND( x, n ) FT_PAD_FLOOR( (x) + ((n)/2), n ) +#define FT_PAD_CEIL( x, n ) FT_PAD_FLOOR( (x) + ((n)-1), n ) + +#define FT_PIX_FLOOR( x ) ( (x) & ~63 ) +#define FT_PIX_ROUND( x ) FT_PIX_FLOOR( (x) + 32 ) +#define FT_PIX_CEIL( x ) FT_PIX_FLOOR( (x) + 63 ) + + + /* + * Return the highest power of 2 that is <= value; this correspond to + * the highest bit in a given 32-bit value. + */ + FT_BASE( FT_UInt32 ) + ft_highpow2( FT_UInt32 value ); + + + /* + * character classification functions -- since these are used to parse + * font files, we must not use those in <ctypes.h> which are + * locale-dependent + */ +#define ft_isdigit( x ) ( ( (unsigned)(x) - '0' ) < 10U ) + +#define ft_isxdigit( x ) ( ( (unsigned)(x) - '0' ) < 10U || \ + ( (unsigned)(x) - 'a' ) < 6U || \ + ( (unsigned)(x) - 'A' ) < 6U ) + + /* the next two macros assume ASCII representation */ +#define ft_isupper( x ) ( ( (unsigned)(x) - 'A' ) < 26U ) +#define ft_islower( x ) ( ( (unsigned)(x) - 'a' ) < 26U ) + +#define ft_isalpha( x ) ( ft_isupper( x ) || ft_islower( x ) ) +#define ft_isalnum( x ) ( ft_isdigit( x ) || ft_isalpha( x ) ) + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** C H A R M A P S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* handle to internal charmap object */ + typedef struct FT_CMapRec_* FT_CMap; + + /* handle to charmap class structure */ + typedef const struct FT_CMap_ClassRec_* FT_CMap_Class; + + /* internal charmap object structure */ + typedef struct FT_CMapRec_ + { + FT_CharMapRec charmap; + FT_CMap_Class clazz; + + } FT_CMapRec; + + /* typecase any pointer to a charmap handle */ +#define FT_CMAP( x ) ((FT_CMap)( x )) + + /* obvious macros */ +#define FT_CMAP_PLATFORM_ID( x ) FT_CMAP( x )->charmap.platform_id +#define FT_CMAP_ENCODING_ID( x ) FT_CMAP( x )->charmap.encoding_id +#define FT_CMAP_ENCODING( x ) FT_CMAP( x )->charmap.encoding +#define FT_CMAP_FACE( x ) FT_CMAP( x )->charmap.face + + + /* class method definitions */ + typedef FT_Error + (*FT_CMap_InitFunc)( FT_CMap cmap, + FT_Pointer init_data ); + + typedef void + (*FT_CMap_DoneFunc)( FT_CMap cmap ); + + typedef FT_UInt + (*FT_CMap_CharIndexFunc)( FT_CMap cmap, + FT_UInt32 char_code ); + + typedef FT_UInt + (*FT_CMap_CharNextFunc)( FT_CMap cmap, + FT_UInt32 *achar_code ); + + typedef FT_UInt + (*FT_CMap_CharVarIndexFunc)( FT_CMap cmap, + FT_CMap unicode_cmap, + FT_UInt32 char_code, + FT_UInt32 variant_selector ); + + typedef FT_Bool + (*FT_CMap_CharVarIsDefaultFunc)( FT_CMap cmap, + FT_UInt32 char_code, + FT_UInt32 variant_selector ); + + typedef FT_UInt32 * + (*FT_CMap_VariantListFunc)( FT_CMap cmap, + FT_Memory mem ); + + typedef FT_UInt32 * + (*FT_CMap_CharVariantListFunc)( FT_CMap cmap, + FT_Memory mem, + FT_UInt32 char_code ); + + typedef FT_UInt32 * + (*FT_CMap_VariantCharListFunc)( FT_CMap cmap, + FT_Memory mem, + FT_UInt32 variant_selector ); + + + typedef struct FT_CMap_ClassRec_ + { + FT_ULong size; + FT_CMap_InitFunc init; + FT_CMap_DoneFunc done; + FT_CMap_CharIndexFunc char_index; + FT_CMap_CharNextFunc char_next; + + /* Subsequent entries are special ones for format 14 -- the variant */ + /* selector subtable which behaves like no other */ + + FT_CMap_CharVarIndexFunc char_var_index; + FT_CMap_CharVarIsDefaultFunc char_var_default; + FT_CMap_VariantListFunc variant_list; + FT_CMap_CharVariantListFunc charvariant_list; + FT_CMap_VariantCharListFunc variantchar_list; + + } FT_CMap_ClassRec; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DECLARE_CMAP_CLASS(class_) \ + FT_CALLBACK_TABLE const FT_CMap_ClassRec class_; + +#define FT_DEFINE_CMAP_CLASS(class_, size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_, variantchar_list_) \ + FT_CALLBACK_TABLE_DEF \ + const FT_CMap_ClassRec class_ = \ + { \ + size_, init_, done_, char_index_, char_next_, char_var_index_, \ + char_var_default_, variant_list_, charvariant_list_, variantchar_list_ \ + }; +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DECLARE_CMAP_CLASS(class_) \ + void FT_Init_Class_##class_( FT_Library library, FT_CMap_ClassRec* clazz); + +#define FT_DEFINE_CMAP_CLASS(class_, size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_, variantchar_list_) \ + void \ + FT_Init_Class_##class_( FT_Library library, \ + FT_CMap_ClassRec* clazz) \ + { \ + FT_UNUSED(library); \ + clazz->size = size_; \ + clazz->init = init_; \ + clazz->done = done_; \ + clazz->char_index = char_index_; \ + clazz->char_next = char_next_; \ + clazz->char_var_index = char_var_index_; \ + clazz->char_var_default = char_var_default_; \ + clazz->variant_list = variant_list_; \ + clazz->charvariant_list = charvariant_list_; \ + clazz->variantchar_list = variantchar_list_; \ + } +#endif /* FT_CONFIG_OPTION_PIC */ + + /* create a new charmap and add it to charmap->face */ + FT_BASE( FT_Error ) + FT_CMap_New( FT_CMap_Class clazz, + FT_Pointer init_data, + FT_CharMap charmap, + FT_CMap *acmap ); + + /* destroy a charmap and remove it from face's list */ + FT_BASE( void ) + FT_CMap_Done( FT_CMap cmap ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Face_InternalRec */ + /* */ + /* <Description> */ + /* This structure contains the internal fields of each FT_Face */ + /* object. These fields may change between different releases of */ + /* FreeType. */ + /* */ + /* <Fields> */ + /* max_points :: */ + /* The maximal number of points used to store the vectorial outline */ + /* of any glyph in this face. If this value cannot be known in */ + /* advance, or if the face isn't scalable, this should be set to 0. */ + /* Only relevant for scalable formats. */ + /* */ + /* max_contours :: */ + /* The maximal number of contours used to store the vectorial */ + /* outline of any glyph in this face. If this value cannot be */ + /* known in advance, or if the face isn't scalable, this should be */ + /* set to 0. Only relevant for scalable formats. */ + /* */ + /* transform_matrix :: */ + /* A 2x2 matrix of 16.16 coefficients used to transform glyph */ + /* outlines after they are loaded from the font. Only used by the */ + /* convenience functions. */ + /* */ + /* transform_delta :: */ + /* A translation vector used to transform glyph outlines after they */ + /* are loaded from the font. Only used by the convenience */ + /* functions. */ + /* */ + /* transform_flags :: */ + /* Some flags used to classify the transform. Only used by the */ + /* convenience functions. */ + /* */ + /* services :: */ + /* A cache for frequently used services. It should be only */ + /* accessed with the macro `FT_FACE_LOOKUP_SERVICE'. */ + /* */ + /* incremental_interface :: */ + /* If non-null, the interface through which glyph data and metrics */ + /* are loaded incrementally for faces that do not provide all of */ + /* this data when first opened. This field exists only if */ + /* @FT_CONFIG_OPTION_INCREMENTAL is defined. */ + /* */ + /* ignore_unpatented_hinter :: */ + /* This boolean flag instructs the glyph loader to ignore the */ + /* native font hinter, if one is found. This is exclusively used */ + /* in the case when the unpatented hinter is compiled within the */ + /* library. */ + /* */ + /* refcount :: */ + /* A counter initialized to~1 at the time an @FT_Face structure is */ + /* created. @FT_Reference_Face increments this counter, and */ + /* @FT_Done_Face only destroys a face if the counter is~1, */ + /* otherwise it simply decrements it. */ + /* */ + typedef struct FT_Face_InternalRec_ + { +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_UShort reserved1; + FT_Short reserved2; +#endif + FT_Matrix transform_matrix; + FT_Vector transform_delta; + FT_Int transform_flags; + + FT_ServiceCacheRec services; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + FT_Incremental_InterfaceRec* incremental_interface; +#endif + + FT_Bool ignore_unpatented_hinter; + FT_UInt refcount; + + } FT_Face_InternalRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Slot_InternalRec */ + /* */ + /* <Description> */ + /* This structure contains the internal fields of each FT_GlyphSlot */ + /* object. These fields may change between different releases of */ + /* FreeType. */ + /* */ + /* <Fields> */ + /* loader :: The glyph loader object used to load outlines */ + /* into the glyph slot. */ + /* */ + /* flags :: Possible values are zero or */ + /* FT_GLYPH_OWN_BITMAP. The latter indicates */ + /* that the FT_GlyphSlot structure owns the */ + /* bitmap buffer. */ + /* */ + /* glyph_transformed :: Boolean. Set to TRUE when the loaded glyph */ + /* must be transformed through a specific */ + /* font transformation. This is _not_ the same */ + /* as the face transform set through */ + /* FT_Set_Transform(). */ + /* */ + /* glyph_matrix :: The 2x2 matrix corresponding to the glyph */ + /* transformation, if necessary. */ + /* */ + /* glyph_delta :: The 2d translation vector corresponding to */ + /* the glyph transformation, if necessary. */ + /* */ + /* glyph_hints :: Format-specific glyph hints management. */ + /* */ + +#define FT_GLYPH_OWN_BITMAP 0x1 + + typedef struct FT_Slot_InternalRec_ + { + FT_GlyphLoader loader; + FT_UInt flags; + FT_Bool glyph_transformed; + FT_Matrix glyph_matrix; + FT_Vector glyph_delta; + void* glyph_hints; + + } FT_GlyphSlot_InternalRec; + + +#if 0 + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_Size_InternalRec */ + /* */ + /* <Description> */ + /* This structure contains the internal fields of each FT_Size */ + /* object. Currently, it's empty. */ + /* */ + /*************************************************************************/ + + typedef struct FT_Size_InternalRec_ + { + /* empty */ + + } FT_Size_InternalRec; + +#endif + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** M O D U L E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_ModuleRec */ + /* */ + /* <Description> */ + /* A module object instance. */ + /* */ + /* <Fields> */ + /* clazz :: A pointer to the module's class. */ + /* */ + /* library :: A handle to the parent library object. */ + /* */ + /* memory :: A handle to the memory manager. */ + /* */ + typedef struct FT_ModuleRec_ + { + FT_Module_Class* clazz; + FT_Library library; + FT_Memory memory; + + } FT_ModuleRec; + + + /* typecast an object to an FT_Module */ +#define FT_MODULE( x ) ((FT_Module)( x )) +#define FT_MODULE_CLASS( x ) FT_MODULE( x )->clazz +#define FT_MODULE_LIBRARY( x ) FT_MODULE( x )->library +#define FT_MODULE_MEMORY( x ) FT_MODULE( x )->memory + + +#define FT_MODULE_IS_DRIVER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_FONT_DRIVER ) + +#define FT_MODULE_IS_RENDERER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_RENDERER ) + +#define FT_MODULE_IS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_HINTER ) + +#define FT_MODULE_IS_STYLER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_STYLER ) + +#define FT_DRIVER_IS_SCALABLE( x ) ( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_DRIVER_SCALABLE ) + +#define FT_DRIVER_USES_OUTLINES( x ) !( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_DRIVER_NO_OUTLINES ) + +#define FT_DRIVER_HAS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \ + FT_MODULE_DRIVER_HAS_HINTER ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Module_Interface */ + /* */ + /* <Description> */ + /* Finds a module and returns its specific interface as a typeless */ + /* pointer. */ + /* */ + /* <Input> */ + /* library :: A handle to the library object. */ + /* */ + /* module_name :: The module's name (as an ASCII string). */ + /* */ + /* <Return> */ + /* A module-specific interface if available, 0 otherwise. */ + /* */ + /* <Note> */ + /* You should better be familiar with FreeType internals to know */ + /* which module to look for, and what its interface is :-) */ + /* */ + FT_BASE( const void* ) + FT_Get_Module_Interface( FT_Library library, + const char* mod_name ); + + FT_BASE( FT_Pointer ) + ft_module_get_service( FT_Module module, + const char* service_id ); + + /* */ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** FACE, SIZE & GLYPH SLOT OBJECTS ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* a few macros used to perform easy typecasts with minimal brain damage */ + +#define FT_FACE( x ) ((FT_Face)(x)) +#define FT_SIZE( x ) ((FT_Size)(x)) +#define FT_SLOT( x ) ((FT_GlyphSlot)(x)) + +#define FT_FACE_DRIVER( x ) FT_FACE( x )->driver +#define FT_FACE_LIBRARY( x ) FT_FACE_DRIVER( x )->root.library +#define FT_FACE_MEMORY( x ) FT_FACE( x )->memory +#define FT_FACE_STREAM( x ) FT_FACE( x )->stream + +#define FT_SIZE_FACE( x ) FT_SIZE( x )->face +#define FT_SLOT_FACE( x ) FT_SLOT( x )->face + +#define FT_FACE_SLOT( x ) FT_FACE( x )->glyph +#define FT_FACE_SIZE( x ) FT_FACE( x )->size + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_GlyphSlot */ + /* */ + /* <Description> */ + /* It is sometimes useful to have more than one glyph slot for a */ + /* given face object. This function is used to create additional */ + /* slots. All of them are automatically discarded when the face is */ + /* destroyed. */ + /* */ + /* <Input> */ + /* face :: A handle to a parent face object. */ + /* */ + /* <Output> */ + /* aslot :: A handle to a new glyph slot object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_BASE( FT_Error ) + FT_New_GlyphSlot( FT_Face face, + FT_GlyphSlot *aslot ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_GlyphSlot */ + /* */ + /* <Description> */ + /* Destroys a given glyph slot. Remember however that all slots are */ + /* automatically destroyed with its parent. Using this function is */ + /* not always mandatory. */ + /* */ + /* <Input> */ + /* slot :: A handle to a target glyph slot. */ + /* */ + FT_BASE( void ) + FT_Done_GlyphSlot( FT_GlyphSlot slot ); + + /* */ + +#define FT_REQUEST_WIDTH( req ) \ + ( (req)->horiResolution \ + ? (FT_Pos)( (req)->width * (req)->horiResolution + 36 ) / 72 \ + : (req)->width ) + +#define FT_REQUEST_HEIGHT( req ) \ + ( (req)->vertResolution \ + ? (FT_Pos)( (req)->height * (req)->vertResolution + 36 ) / 72 \ + : (req)->height ) + + + /* Set the metrics according to a bitmap strike. */ + FT_BASE( void ) + FT_Select_Metrics( FT_Face face, + FT_ULong strike_index ); + + + /* Set the metrics according to a size request. */ + FT_BASE( void ) + FT_Request_Metrics( FT_Face face, + FT_Size_Request req ); + + + /* Match a size request against `available_sizes'. */ + FT_BASE( FT_Error ) + FT_Match_Size( FT_Face face, + FT_Size_Request req, + FT_Bool ignore_width, + FT_ULong* size_index ); + + + /* Use the horizontal metrics to synthesize the vertical metrics. */ + /* If `advance' is zero, it is also synthesized. */ + FT_BASE( void ) + ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics, + FT_Pos advance ); + + + /* Free the bitmap of a given glyphslot when needed (i.e., only when it */ + /* was allocated with ft_glyphslot_alloc_bitmap). */ + FT_BASE( void ) + ft_glyphslot_free_bitmap( FT_GlyphSlot slot ); + + + /* Allocate a new bitmap buffer in a glyph slot. */ + FT_BASE( FT_Error ) + ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot, + FT_ULong size ); + + + /* Set the bitmap buffer in a glyph slot to a given pointer. The buffer */ + /* will not be freed by a later call to ft_glyphslot_free_bitmap. */ + FT_BASE( void ) + ft_glyphslot_set_bitmap( FT_GlyphSlot slot, + FT_Byte* buffer ); + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** R E N D E R E R S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#define FT_RENDERER( x ) ((FT_Renderer)( x )) +#define FT_GLYPH( x ) ((FT_Glyph)( x )) +#define FT_BITMAP_GLYPH( x ) ((FT_BitmapGlyph)( x )) +#define FT_OUTLINE_GLYPH( x ) ((FT_OutlineGlyph)( x )) + + + typedef struct FT_RendererRec_ + { + FT_ModuleRec root; + FT_Renderer_Class* clazz; + FT_Glyph_Format glyph_format; + FT_Glyph_Class glyph_class; + + FT_Raster raster; + FT_Raster_Render_Func raster_render; + FT_Renderer_RenderFunc render; + + } FT_RendererRec; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** F O N T D R I V E R S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* typecast a module into a driver easily */ +#define FT_DRIVER( x ) ((FT_Driver)(x)) + + /* typecast a module as a driver, and get its driver class */ +#define FT_DRIVER_CLASS( x ) FT_DRIVER( x )->clazz + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_DriverRec */ + /* */ + /* <Description> */ + /* The root font driver class. A font driver is responsible for */ + /* managing and loading font files of a given format. */ + /* */ + /* <Fields> */ + /* root :: Contains the fields of the root module class. */ + /* */ + /* clazz :: A pointer to the font driver's class. Note that */ + /* this is NOT root.clazz. `class' wasn't used */ + /* as it is a reserved word in C++. */ + /* */ + /* faces_list :: The list of faces currently opened by this */ + /* driver. */ + /* */ + /* glyph_loader :: The glyph loader for all faces managed by this */ + /* driver. This object isn't defined for unscalable */ + /* formats. */ + /* */ + typedef struct FT_DriverRec_ + { + FT_ModuleRec root; + FT_Driver_Class clazz; + FT_ListRec faces_list; + FT_GlyphLoader glyph_loader; + + } FT_DriverRec; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** L I B R A R I E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* This hook is used by the TrueType debugger. It must be set to an */ + /* alternate truetype bytecode interpreter function. */ +#define FT_DEBUG_HOOK_TRUETYPE 0 + + + /* Set this debug hook to a non-null pointer to force unpatented hinting */ + /* for all faces when both TT_USE_BYTECODE_INTERPRETER and */ + /* TT_CONFIG_OPTION_UNPATENTED_HINTING are defined. This is only used */ + /* during debugging. */ +#define FT_DEBUG_HOOK_UNPATENTED_HINTING 1 + + + typedef void (*FT_Bitmap_LcdFilterFunc)( FT_Bitmap* bitmap, + FT_Render_Mode render_mode, + FT_Library library ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* FT_LibraryRec */ + /* */ + /* <Description> */ + /* The FreeType library class. This is the root of all FreeType */ + /* data. Use FT_New_Library() to create a library object, and */ + /* FT_Done_Library() to discard it and all child objects. */ + /* */ + /* <Fields> */ + /* memory :: The library's memory object. Manages memory */ + /* allocation. */ + /* */ + /* version_major :: The major version number of the library. */ + /* */ + /* version_minor :: The minor version number of the library. */ + /* */ + /* version_patch :: The current patch level of the library. */ + /* */ + /* num_modules :: The number of modules currently registered */ + /* within this library. This is set to 0 for new */ + /* libraries. New modules are added through the */ + /* FT_Add_Module() API function. */ + /* */ + /* modules :: A table used to store handles to the currently */ + /* registered modules. Note that each font driver */ + /* contains a list of its opened faces. */ + /* */ + /* renderers :: The list of renderers currently registered */ + /* within the library. */ + /* */ + /* cur_renderer :: The current outline renderer. This is a */ + /* shortcut used to avoid parsing the list on */ + /* each call to FT_Outline_Render(). It is a */ + /* handle to the current renderer for the */ + /* FT_GLYPH_FORMAT_OUTLINE format. */ + /* */ + /* auto_hinter :: XXX */ + /* */ + /* raster_pool :: The raster object's render pool. This can */ + /* ideally be changed dynamically at run-time. */ + /* */ + /* raster_pool_size :: The size of the render pool in bytes. */ + /* */ + /* debug_hooks :: XXX */ + /* */ + /* lcd_filter :: If subpixel rendering is activated, the */ + /* selected LCD filter mode. */ + /* */ + /* lcd_extra :: If subpixel rendering is activated, the number */ + /* of extra pixels needed for the LCD filter. */ + /* */ + /* lcd_weights :: If subpixel rendering is activated, the LCD */ + /* filter weights, if any. */ + /* */ + /* lcd_filter_func :: If subpixel rendering is activated, the LCD */ + /* filtering callback function. */ + /* */ + /* pic_container :: Contains global structs and tables, instead */ + /* of defining them globallly. */ + /* */ + /* refcount :: A counter initialized to~1 at the time an */ + /* @FT_Library structure is created. */ + /* @FT_Reference_Library increments this counter, */ + /* and @FT_Done_Library only destroys a library */ + /* if the counter is~1, otherwise it simply */ + /* decrements it. */ + /* */ + typedef struct FT_LibraryRec_ + { + FT_Memory memory; /* library's memory manager */ + + FT_Int version_major; + FT_Int version_minor; + FT_Int version_patch; + + FT_UInt num_modules; + FT_Module modules[FT_MAX_MODULES]; /* module objects */ + + FT_ListRec renderers; /* list of renderers */ + FT_Renderer cur_renderer; /* current outline renderer */ + FT_Module auto_hinter; + + FT_Byte* raster_pool; /* scan-line conversion */ + /* render pool */ + FT_ULong raster_pool_size; /* size of render pool in bytes */ + + FT_DebugHook_Func debug_hooks[4]; + +#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING + FT_LcdFilter lcd_filter; + FT_Int lcd_extra; /* number of extra pixels */ + FT_Byte lcd_weights[7]; /* filter weights, if any */ + FT_Bitmap_LcdFilterFunc lcd_filter_func; /* filtering callback */ +#endif + +#ifdef FT_CONFIG_OPTION_PIC + FT_PIC_Container pic_container; +#endif + + FT_UInt refcount; + + } FT_LibraryRec; + + + FT_BASE( FT_Renderer ) + FT_Lookup_Renderer( FT_Library library, + FT_Glyph_Format format, + FT_ListNode* node ); + + FT_BASE( FT_Error ) + FT_Render_Glyph_Internal( FT_Library library, + FT_GlyphSlot slot, + FT_Render_Mode render_mode ); + + typedef const char* + (*FT_Face_GetPostscriptNameFunc)( FT_Face face ); + + typedef FT_Error + (*FT_Face_GetGlyphNameFunc)( FT_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ); + + typedef FT_UInt + (*FT_Face_GetGlyphNameIndexFunc)( FT_Face face, + FT_String* glyph_name ); + + +#ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Memory */ + /* */ + /* <Description> */ + /* Creates a new memory object. */ + /* */ + /* <Return> */ + /* A pointer to the new memory object. 0 in case of error. */ + /* */ + FT_BASE( FT_Memory ) + FT_New_Memory( void ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Done_Memory */ + /* */ + /* <Description> */ + /* Discards memory manager. */ + /* */ + /* <Input> */ + /* memory :: A handle to the memory manager. */ + /* */ + FT_BASE( void ) + FT_Done_Memory( FT_Memory memory ); + +#endif /* !FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */ + + + /* Define default raster's interface. The default raster is located in */ + /* `src/base/ftraster.c'. */ + /* */ + /* Client applications can register new rasters through the */ + /* FT_Set_Raster() API. */ + +#ifndef FT_NO_DEFAULT_RASTER + FT_EXPORT_VAR( FT_Raster_Funcs ) ft_default_raster; +#endif + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** PIC-Support Macros for ftimage.h ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DEFINE_OUTLINE_FUNCS */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Outline_Funcs struct. */ + /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */ + /* called with a pre-allocated stracture to be filled. */ + /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_OUTLINE_FUNCS(class_, move_to_, line_to_, conic_to_, \ + cubic_to_, shift_, delta_) \ + static const FT_Outline_Funcs class_ = \ + { \ + move_to_, line_to_, conic_to_, cubic_to_, shift_, delta_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_OUTLINE_FUNCS(class_, move_to_, line_to_, conic_to_, \ + cubic_to_, shift_, delta_) \ + static FT_Error \ + Init_Class_##class_( FT_Outline_Funcs* clazz ) \ + { \ + clazz->move_to = move_to_; \ + clazz->line_to = line_to_; \ + clazz->conic_to = conic_to_; \ + clazz->cubic_to = cubic_to_; \ + clazz->shift = shift_; \ + clazz->delta = delta_; \ + return FT_Err_Ok; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DEFINE_RASTER_FUNCS */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Raster_Funcs struct. */ + /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */ + /* called with a pre-allocated stracture to be filled. */ + /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_RASTER_FUNCS(class_, glyph_format_, raster_new_, \ + raster_reset_, raster_set_mode_, \ + raster_render_, raster_done_) \ + const FT_Raster_Funcs class_ = \ + { \ + glyph_format_, raster_new_, raster_reset_, \ + raster_set_mode_, raster_render_, raster_done_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_RASTER_FUNCS(class_, glyph_format_, raster_new_, \ + raster_reset_, raster_set_mode_, raster_render_, raster_done_) \ + void \ + FT_Init_Class_##class_( FT_Raster_Funcs* clazz ) \ + { \ + clazz->glyph_format = glyph_format_; \ + clazz->raster_new = raster_new_; \ + clazz->raster_reset = raster_reset_; \ + clazz->raster_set_mode = raster_set_mode_; \ + clazz->raster_render = raster_render_; \ + clazz->raster_done = raster_done_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** PIC-Support Macros for ftrender.h ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DEFINE_GLYPH */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Glyph_Class struct. */ + /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */ + /* called with a pre-allocated stracture to be filled. */ + /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_GLYPH(class_, size_, format_, init_, done_, copy_, \ + transform_, bbox_, prepare_) \ + FT_CALLBACK_TABLE_DEF \ + const FT_Glyph_Class class_ = \ + { \ + size_, format_, init_, done_, copy_, transform_, bbox_, prepare_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_GLYPH(class_, size_, format_, init_, done_, copy_, \ + transform_, bbox_, prepare_) \ + void \ + FT_Init_Class_##class_( FT_Glyph_Class* clazz ) \ + { \ + clazz->glyph_size = size_; \ + clazz->glyph_format = format_; \ + clazz->glyph_init = init_; \ + clazz->glyph_done = done_; \ + clazz->glyph_copy = copy_; \ + clazz->glyph_transform = transform_; \ + clazz->glyph_bbox = bbox_; \ + clazz->glyph_prepare = prepare_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DECLARE_RENDERER */ + /* */ + /* <Description> */ + /* Used to create a forward declaration of a */ + /* FT_Renderer_Class stract instance. */ + /* */ + /* <Macro> */ + /* FT_DEFINE_RENDERER */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Renderer_Class struct. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */ + /* to called with a pointer where the allocated stracture is returned.*/ + /* And when it is no longer needed a Destroy function needs */ + /* to be called to release that allocation. */ + /* fcinit.c (ft_create_default_module_classes) already contains */ + /* a mechanism to call these functions for the default modules */ + /* described in ftmodule.h */ + /* */ + /* Notice that the created Create and Destroy functions call */ + /* pic_init and pic_free function to allow you to manually allocate */ + /* and initialize any additional global data, like module specific */ + /* interface, and put them in the global pic container defined in */ + /* ftpic.h. if you don't need them just implement the functions as */ + /* empty to resolve the link error. Also the pic_init and pic_free */ + /* functions should be declared in pic.h, to be referred by renderer */ + /* definition calling FT_DEFINE_RENDERER() in following. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DECLARE_RENDERER(class_) \ + FT_EXPORT_VAR( const FT_Renderer_Class ) class_; + +#define FT_DEFINE_RENDERER(class_, \ + flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_, \ + glyph_format_, render_glyph_, transform_glyph_, \ + get_glyph_cbox_, set_mode_, raster_class_ ) \ + FT_CALLBACK_TABLE_DEF \ + const FT_Renderer_Class class_ = \ + { \ + FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_, \ + interface_,init_,done_,get_interface_) \ + glyph_format_, \ + \ + render_glyph_, \ + transform_glyph_, \ + get_glyph_cbox_, \ + set_mode_, \ + \ + raster_class_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DECLARE_RENDERER(class_) FT_DECLARE_MODULE(class_) + +#define FT_DEFINE_RENDERER(class_, \ + flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_, \ + glyph_format_, render_glyph_, transform_glyph_, \ + get_glyph_cbox_, set_mode_, raster_class_ ) \ + \ + void \ + FT_Destroy_Class_##class_( FT_Library library, \ + FT_Module_Class* clazz ) \ + { \ + FT_Renderer_Class* rclazz = (FT_Renderer_Class*)clazz; \ + FT_Memory memory = library->memory; \ + class_##_pic_free( library ); \ + if ( rclazz ) \ + FT_FREE( rclazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_##class_( FT_Library library, \ + FT_Module_Class** output_class ) \ + { \ + FT_Renderer_Class* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \ + return error; \ + \ + error = class_##_pic_init( library ); \ + if(error) \ + { \ + FT_FREE( clazz ); \ + return error; \ + } \ + \ + FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_, \ + interface_,init_,done_,get_interface_) \ + \ + clazz->glyph_format = glyph_format_; \ + \ + clazz->render_glyph = render_glyph_; \ + clazz->transform_glyph = transform_glyph_; \ + clazz->get_glyph_cbox = get_glyph_cbox_; \ + clazz->set_mode = set_mode_; \ + \ + clazz->raster_class = raster_class_; \ + \ + *output_class = (FT_Module_Class*)clazz; \ + return FT_Err_Ok; \ + } + + + +#endif /* FT_CONFIG_OPTION_PIC */ + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** PIC-Support Macros for ftmodapi.h ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#ifdef FT_CONFIG_OPTION_PIC + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Module_Creator */ + /* */ + /* <Description> */ + /* A function used to create (allocate) a new module class object. */ + /* The object's members are initialized, but the module itself is */ + /* not. */ + /* */ + /* <Input> */ + /* memory :: A handle to the memory manager. */ + /* output_class :: Initialized with the newly allocated class. */ + /* */ + typedef FT_Error + (*FT_Module_Creator)( FT_Memory memory, + FT_Module_Class** output_class ); + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* FT_Module_Destroyer */ + /* */ + /* <Description> */ + /* A function used to destroy (deallocate) a module class object. */ + /* */ + /* <Input> */ + /* memory :: A handle to the memory manager. */ + /* clazz :: Module class to destroy. */ + /* */ + typedef void + (*FT_Module_Destroyer)( FT_Memory memory, + FT_Module_Class* clazz ); + +#endif + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DECLARE_MODULE */ + /* */ + /* <Description> */ + /* Used to create a forward declaration of a */ + /* FT_Module_Class stract instance. */ + /* */ + /* <Macro> */ + /* FT_DEFINE_MODULE */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Module_Class struct. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */ + /* to called with a pointer where the allocated stracture is returned.*/ + /* And when it is no longer needed a Destroy function needs */ + /* to be called to release that allocation. */ + /* fcinit.c (ft_create_default_module_classes) already contains */ + /* a mechanism to call these functions for the default modules */ + /* described in ftmodule.h */ + /* */ + /* Notice that the created Create and Destroy functions call */ + /* pic_init and pic_free function to allow you to manually allocate */ + /* and initialize any additional global data, like module specific */ + /* interface, and put them in the global pic container defined in */ + /* ftpic.h. if you don't need them just implement the functions as */ + /* empty to resolve the link error. Also the pic_init and pic_free */ + /* functions should be declared in pic.h, to be referred by module */ + /* definition calling FT_DEFINE_MODULE() in following. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */ + /* allocated in the global scope (or the scope where the macro */ + /* is used). */ + /* */ + /* <Macro> */ + /* FT_DEFINE_ROOT_MODULE */ + /* */ + /* <Description> */ + /* Used to initialize an instance of FT_Module_Class struct inside */ + /* another stract that contains it or in a function that initializes */ + /* that containing stract */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DECLARE_MODULE(class_) \ + FT_CALLBACK_TABLE \ + const FT_Module_Class class_; \ + +#define FT_DEFINE_ROOT_MODULE(flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_) \ + { \ + flags_, \ + size_, \ + \ + name_, \ + version_, \ + requires_, \ + \ + interface_, \ + \ + init_, \ + done_, \ + get_interface_, \ + }, + +#define FT_DEFINE_MODULE(class_, flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_) \ + FT_CALLBACK_TABLE_DEF \ + const FT_Module_Class class_ = \ + { \ + flags_, \ + size_, \ + \ + name_, \ + version_, \ + requires_, \ + \ + interface_, \ + \ + init_, \ + done_, \ + get_interface_, \ + }; + + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DECLARE_MODULE(class_) \ + FT_Error FT_Create_Class_##class_( FT_Library library, \ + FT_Module_Class** output_class ); \ + void FT_Destroy_Class_##class_( FT_Library library, \ + FT_Module_Class* clazz ); + +#define FT_DEFINE_ROOT_MODULE(flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_) \ + clazz->root.module_flags = flags_; \ + clazz->root.module_size = size_; \ + clazz->root.module_name = name_; \ + clazz->root.module_version = version_; \ + clazz->root.module_requires = requires_; \ + \ + clazz->root.module_interface = interface_; \ + \ + clazz->root.module_init = init_; \ + clazz->root.module_done = done_; \ + clazz->root.get_interface = get_interface_; + +#define FT_DEFINE_MODULE(class_, flags_, size_, name_, version_, requires_, \ + interface_, init_, done_, get_interface_) \ + \ + void \ + FT_Destroy_Class_##class_( FT_Library library, \ + FT_Module_Class* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + class_##_pic_free( library ); \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_##class_( FT_Library library, \ + FT_Module_Class** output_class ) \ + { \ + FT_Memory memory = library->memory; \ + FT_Module_Class* clazz; \ + FT_Error error; \ + \ + if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \ + return error; \ + error = class_##_pic_init( library ); \ + if(error) \ + { \ + FT_FREE( clazz ); \ + return error; \ + } \ + \ + clazz->module_flags = flags_; \ + clazz->module_size = size_; \ + clazz->module_name = name_; \ + clazz->module_version = version_; \ + clazz->module_requires = requires_; \ + \ + clazz->module_interface = interface_; \ + \ + clazz->module_init = init_; \ + clazz->module_done = done_; \ + clazz->get_interface = get_interface_; \ + \ + *output_class = clazz; \ + return FT_Err_Ok; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +FT_END_HEADER + +#endif /* __FTOBJS_H__ */ + + +/* END */ diff --git a/include/freetype/internal/ftpic.h b/include/freetype/internal/ftpic.h new file mode 100644 index 0000000..5b674e6 --- /dev/null +++ b/include/freetype/internal/ftpic.h @@ -0,0 +1,67 @@ +/***************************************************************************/ +/* */ +/* ftpic.h */ +/* */ +/* The FreeType position independent code services (declaration). */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* Modules that ordinarily have const global data that need address */ + /* can instead define pointers here. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTPIC_H__ +#define __FTPIC_H__ + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC + + typedef struct FT_PIC_Container_ + { + /* pic containers for base */ + void* base; + /* pic containers for modules */ + void* autofit; + void* cff; + void* pshinter; + void* psnames; + void* raster; + void* sfnt; + void* smooth; + void* truetype; + } FT_PIC_Container; + + /* Initialize the various function tables, structs, etc. stored in the container. */ + FT_BASE( FT_Error ) + ft_pic_container_init( FT_Library library ); + + + /* Destroy the contents of the container. */ + FT_BASE( void ) + ft_pic_container_destroy( FT_Library library ); + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __FTPIC_H__ */ + + +/* END */ diff --git a/include/freetype/internal/ftrfork.h b/include/freetype/internal/ftrfork.h new file mode 100644 index 0000000..77e1020 --- /dev/null +++ b/include/freetype/internal/ftrfork.h @@ -0,0 +1,247 @@ +/***************************************************************************/ +/* */ +/* ftrfork.h */ +/* */ +/* Embedded resource forks accessor (specification). */ +/* */ +/* Copyright 2004, 2006, 2007 by */ +/* Masatake YAMATO and Redhat K.K. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* Development of the code in this file is support of */ +/* Information-technology Promotion Agency, Japan. */ +/***************************************************************************/ + + +#ifndef __FTRFORK_H__ +#define __FTRFORK_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H + + +FT_BEGIN_HEADER + + + /* Number of guessing rules supported in `FT_Raccess_Guess'. */ + /* Don't forget to increment the number if you add a new guessing rule. */ +#define FT_RACCESS_N_RULES 9 + + + /* A structure to describe a reference in a resource by its resource ID */ + /* and internal offset. The `POST' resource expects to be concatenated */ + /* by the order of resource IDs instead of its appearance in the file. */ + + typedef struct FT_RFork_Ref_ + { + FT_UShort res_id; + FT_ULong offset; + + } FT_RFork_Ref; + +#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK + typedef FT_Error + (*ft_raccess_guess_func)( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + typedef enum FT_RFork_Rule_ { + FT_RFork_Rule_invalid = -2, + FT_RFork_Rule_uknown, /* -1 */ + FT_RFork_Rule_apple_double, + FT_RFork_Rule_apple_single, + FT_RFork_Rule_darwin_ufs_export, + FT_RFork_Rule_darwin_newvfs, + FT_RFork_Rule_darwin_hfsplus, + FT_RFork_Rule_vfat, + FT_RFork_Rule_linux_cap, + FT_RFork_Rule_linux_double, + FT_RFork_Rule_linux_netatalk + } FT_RFork_Rule; + + /* For fast translation between rule index and rule type, + * the macros FT_RFORK_xxx should be kept consistent with + * the raccess_guess_funcs table + */ + typedef struct ft_raccess_guess_rec_ { + ft_raccess_guess_func func; + FT_RFork_Rule type; + } ft_raccess_guess_rec; + +#ifndef FT_CONFIG_OPTION_PIC + /* this array is a storage in non-PIC mode, so ; is needed in END */ +#define CONST_FT_RFORK_RULE_ARRAY_BEGIN( name, type ) \ + const type name[] = { +#define CONST_FT_RFORK_RULE_ARRAY_ENTRY( func_suffix, type_suffix ) \ + { raccess_guess_##func_suffix, FT_RFork_Rule_##type_suffix }, +#define CONST_FT_RFORK_RULE_ARRAY_END }; +#else /* FT_CONFIG_OPTION_PIC */ + /* this array is a function in PIC mode, so no ; is needed in END */ +#define CONST_FT_RFORK_RULE_ARRAY_BEGIN( name, type ) \ + void FT_Init_##name ( type* storage ) { \ + type *local = storage; \ + int i = 0; +#define CONST_FT_RFORK_RULE_ARRAY_ENTRY( func_suffix, type_suffix ) \ + local[i].func = raccess_guess_##func_suffix; \ + local[i].type = FT_RFork_Rule_##type_suffix; \ + i++; +#define CONST_FT_RFORK_RULE_ARRAY_END } +#endif /* FT_CONFIG_OPTION_PIC */ +#endif /* FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */ + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Raccess_Guess */ + /* */ + /* <Description> */ + /* Guess a file name and offset where the actual resource fork is */ + /* stored. The macro FT_RACCESS_N_RULES holds the number of */ + /* guessing rules; the guessed result for the Nth rule is */ + /* represented as a triplet: a new file name (new_names[N]), a file */ + /* offset (offsets[N]), and an error code (errors[N]). */ + /* */ + /* <Input> */ + /* library :: */ + /* A FreeType library instance. */ + /* */ + /* stream :: */ + /* A file stream containing the resource fork. */ + /* */ + /* base_name :: */ + /* The (base) file name of the resource fork used for some */ + /* guessing rules. */ + /* */ + /* <Output> */ + /* new_names :: */ + /* An array of guessed file names in which the resource forks may */ + /* exist. If `new_names[N]' is NULL, the guessed file name is */ + /* equal to `base_name'. */ + /* */ + /* offsets :: */ + /* An array of guessed file offsets. `offsets[N]' holds the file */ + /* offset of the possible start of the resource fork in file */ + /* `new_names[N]'. */ + /* */ + /* errors :: */ + /* An array of FreeType error codes. `errors[N]' is the error */ + /* code of Nth guessing rule function. If `errors[N]' is not */ + /* FT_Err_Ok, `new_names[N]' and `offsets[N]' are meaningless. */ + /* */ + FT_BASE( void ) + FT_Raccess_Guess( FT_Library library, + FT_Stream stream, + char* base_name, + char** new_names, + FT_Long* offsets, + FT_Error* errors ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Raccess_Get_HeaderInfo */ + /* */ + /* <Description> */ + /* Get the information from the header of resource fork. The */ + /* information includes the file offset where the resource map */ + /* starts, and the file offset where the resource data starts. */ + /* `FT_Raccess_Get_DataOffsets' requires these two data. */ + /* */ + /* <Input> */ + /* library :: */ + /* A FreeType library instance. */ + /* */ + /* stream :: */ + /* A file stream containing the resource fork. */ + /* */ + /* rfork_offset :: */ + /* The file offset where the resource fork starts. */ + /* */ + /* <Output> */ + /* map_offset :: */ + /* The file offset where the resource map starts. */ + /* */ + /* rdata_pos :: */ + /* The file offset where the resource data starts. */ + /* */ + /* <Return> */ + /* FreeType error code. FT_Err_Ok means success. */ + /* */ + FT_BASE( FT_Error ) + FT_Raccess_Get_HeaderInfo( FT_Library library, + FT_Stream stream, + FT_Long rfork_offset, + FT_Long *map_offset, + FT_Long *rdata_pos ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Raccess_Get_DataOffsets */ + /* */ + /* <Description> */ + /* Get the data offsets for a tag in a resource fork. Offsets are */ + /* stored in an array because, in some cases, resources in a resource */ + /* fork have the same tag. */ + /* */ + /* <Input> */ + /* library :: */ + /* A FreeType library instance. */ + /* */ + /* stream :: */ + /* A file stream containing the resource fork. */ + /* */ + /* map_offset :: */ + /* The file offset where the resource map starts. */ + /* */ + /* rdata_pos :: */ + /* The file offset where the resource data starts. */ + /* */ + /* tag :: */ + /* The resource tag. */ + /* */ + /* <Output> */ + /* offsets :: */ + /* The stream offsets for the resource data specified by `tag'. */ + /* This array is allocated by the function, so you have to call */ + /* @ft_mem_free after use. */ + /* */ + /* count :: */ + /* The length of offsets array. */ + /* */ + /* <Return> */ + /* FreeType error code. FT_Err_Ok means success. */ + /* */ + /* <Note> */ + /* Normally you should use `FT_Raccess_Get_HeaderInfo' to get the */ + /* value for `map_offset' and `rdata_pos'. */ + /* */ + FT_BASE( FT_Error ) + FT_Raccess_Get_DataOffsets( FT_Library library, + FT_Stream stream, + FT_Long map_offset, + FT_Long rdata_pos, + FT_Long tag, + FT_Long **offsets, + FT_Long *count ); + + +FT_END_HEADER + +#endif /* __FTRFORK_H__ */ + + +/* END */ diff --git a/include/freetype/internal/ftserv.h b/include/freetype/internal/ftserv.h new file mode 100644 index 0000000..4f481db --- /dev/null +++ b/include/freetype/internal/ftserv.h @@ -0,0 +1,688 @@ +/***************************************************************************/ +/* */ +/* ftserv.h */ +/* */ +/* The FreeType services (specification only). */ +/* */ +/* Copyright 2003-2007, 2009, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* Each module can export one or more `services'. Each service is */ + /* identified by a constant string and modeled by a pointer; the latter */ + /* generally corresponds to a structure containing function pointers. */ + /* */ + /* Note that a service's data cannot be a mere function pointer because */ + /* in C it is possible that function pointers might be implemented */ + /* differently than data pointers (e.g. 48 bits instead of 32). */ + /* */ + /*************************************************************************/ + + +#ifndef __FTSERV_H__ +#define __FTSERV_H__ + + +FT_BEGIN_HEADER + +#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */ + + /* we disable the warning `conditional expression is constant' here */ + /* in order to compile cleanly with the maximum level of warnings */ +#pragma warning( disable : 4127 ) + +#endif /* _MSC_VER */ + + /* + * @macro: + * FT_FACE_FIND_SERVICE + * + * @description: + * This macro is used to look up a service from a face's driver module. + * + * @input: + * face :: + * The source face handle. + * + * id :: + * A string describing the service as defined in the service's + * header files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to + * `multi-masters'). It is automatically prefixed with + * `FT_SERVICE_ID_'. + * + * @output: + * ptr :: + * A variable that receives the service pointer. Will be NULL + * if not found. + */ +#ifdef __cplusplus + +#define FT_FACE_FIND_SERVICE( face, ptr, id ) \ + FT_BEGIN_STMNT \ + FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \ + FT_Pointer _tmp_ = NULL; \ + FT_Pointer* _pptr_ = (FT_Pointer*)&(ptr); \ + \ + \ + if ( module->clazz->get_interface ) \ + _tmp_ = module->clazz->get_interface( module, FT_SERVICE_ID_ ## id ); \ + *_pptr_ = _tmp_; \ + FT_END_STMNT + +#else /* !C++ */ + +#define FT_FACE_FIND_SERVICE( face, ptr, id ) \ + FT_BEGIN_STMNT \ + FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \ + FT_Pointer _tmp_ = NULL; \ + \ + if ( module->clazz->get_interface ) \ + _tmp_ = module->clazz->get_interface( module, FT_SERVICE_ID_ ## id ); \ + ptr = _tmp_; \ + FT_END_STMNT + +#endif /* !C++ */ + + /* + * @macro: + * FT_FACE_FIND_GLOBAL_SERVICE + * + * @description: + * This macro is used to look up a service from all modules. + * + * @input: + * face :: + * The source face handle. + * + * id :: + * A string describing the service as defined in the service's + * header files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to + * `multi-masters'). It is automatically prefixed with + * `FT_SERVICE_ID_'. + * + * @output: + * ptr :: + * A variable that receives the service pointer. Will be NULL + * if not found. + */ +#ifdef __cplusplus + +#define FT_FACE_FIND_GLOBAL_SERVICE( face, ptr, id ) \ + FT_BEGIN_STMNT \ + FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \ + FT_Pointer _tmp_; \ + FT_Pointer* _pptr_ = (FT_Pointer*)&(ptr); \ + \ + \ + _tmp_ = ft_module_get_service( module, FT_SERVICE_ID_ ## id ); \ + *_pptr_ = _tmp_; \ + FT_END_STMNT + +#else /* !C++ */ + +#define FT_FACE_FIND_GLOBAL_SERVICE( face, ptr, id ) \ + FT_BEGIN_STMNT \ + FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \ + FT_Pointer _tmp_; \ + \ + \ + _tmp_ = ft_module_get_service( module, FT_SERVICE_ID_ ## id ); \ + ptr = _tmp_; \ + FT_END_STMNT + +#endif /* !C++ */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** S E R V I C E D E S C R I P T O R S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * The following structure is used to _describe_ a given service + * to the library. This is useful to build simple static service lists. + */ + typedef struct FT_ServiceDescRec_ + { + const char* serv_id; /* service name */ + const void* serv_data; /* service pointer/data */ + + } FT_ServiceDescRec; + + typedef const FT_ServiceDescRec* FT_ServiceDesc; + + + /*************************************************************************/ + /* */ + /* <Macro> */ + /* FT_DEFINE_SERVICEDESCREC1 .. FT_DEFINE_SERVICEDESCREC6 */ + /* */ + /* <Description> */ + /* Used to initialize an array of FT_ServiceDescRec structures. */ + /* */ + /* When FT_CONFIG_OPTION_PIC is defined a `create' function needs to */ + /* be called with a pointer to return an allocated array. As soon as */ + /* it is no longer needed, a `destroy' function needs to be called to */ + /* release that allocation. */ + /* */ + /* These functions should be manually called from the `pic_init' and */ + /* `pic_free' functions of your module (see FT_DEFINE_MODULE). */ + /* */ + /* When FT_CONFIG_OPTION_PIC is not defined the array will be */ + /* allocated in the global scope (or the scope where the macro is */ + /* used). */ + /* */ +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICEDESCREC1( class_, \ + serv_id_1, serv_data_1 ) \ + static const FT_ServiceDescRec class_[] = \ + { \ + { serv_id_1, serv_data_1 }, \ + { NULL, NULL } \ + }; + +#define FT_DEFINE_SERVICEDESCREC2( class_, \ + serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2 ) \ + static const FT_ServiceDescRec class_[] = \ + { \ + { serv_id_1, serv_data_1 }, \ + { serv_id_2, serv_data_2 }, \ + { NULL, NULL } \ + }; + +#define FT_DEFINE_SERVICEDESCREC3( class_, \ + serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, \ + serv_id_3, serv_data_3 ) \ + static const FT_ServiceDescRec class_[] = \ + { \ + { serv_id_1, serv_data_1 }, \ + { serv_id_2, serv_data_2 }, \ + { serv_id_3, serv_data_3 }, \ + { NULL, NULL } \ + }; + +#define FT_DEFINE_SERVICEDESCREC4( class_, \ + serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, \ + serv_id_3, serv_data_3, \ + serv_id_4, serv_data_4 ) \ + static const FT_ServiceDescRec class_[] = \ + { \ + { serv_id_1, serv_data_1 }, \ + { serv_id_2, serv_data_2 }, \ + { serv_id_3, serv_data_3 }, \ + { serv_id_4, serv_data_4 }, \ + { NULL, NULL } \ + }; + +#define FT_DEFINE_SERVICEDESCREC5( class_, \ + serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, \ + serv_id_3, serv_data_3, \ + serv_id_4, serv_data_4, \ + serv_id_5, serv_data_5 ) \ + static const FT_ServiceDescRec class_[] = \ + { \ + { serv_id_1, serv_data_1 }, \ + { serv_id_2, serv_data_2 }, \ + { serv_id_3, serv_data_3 }, \ + { serv_id_4, serv_data_4 }, \ + { serv_id_5, serv_data_5 }, \ + { NULL, NULL } \ + }; + +#define FT_DEFINE_SERVICEDESCREC6( class_, \ + serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, \ + serv_id_3, serv_data_3, \ + serv_id_4, serv_data_4, \ + serv_id_5, serv_data_5, \ + serv_id_6, serv_data_6 ) \ + static const FT_ServiceDescRec class_[] = \ + { \ + { serv_id_1, serv_data_1 }, \ + { serv_id_2, serv_data_2 }, \ + { serv_id_3, serv_data_3 }, \ + { serv_id_4, serv_data_4 }, \ + { serv_id_5, serv_data_5 }, \ + { serv_id_6, serv_data_6 }, \ + { NULL, NULL } \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICEDESCREC1( class_, \ + serv_id_1, serv_data_1 ) \ + void \ + FT_Destroy_Class_ ## class_( FT_Library library, \ + FT_ServiceDescRec* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + \ + \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_ ## class_( FT_Library library, \ + FT_ServiceDescRec** output_class ) \ + { \ + FT_ServiceDescRec* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + \ + if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 2 ) ) \ + return error; \ + \ + clazz[0].serv_id = serv_id_1; \ + clazz[0].serv_data = serv_data_1; \ + clazz[1].serv_id = NULL; \ + clazz[1].serv_data = NULL; \ + \ + *output_class = clazz; \ + \ + return FT_Err_Ok; \ + } + +#define FT_DEFINE_SERVICEDESCREC2( class_, \ + serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2 ) \ + void \ + FT_Destroy_Class_ ## class_( FT_Library library, \ + FT_ServiceDescRec* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + \ + \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_ ## class_( FT_Library library, \ + FT_ServiceDescRec** output_class ) \ + { \ + FT_ServiceDescRec* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + \ + if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 3 ) ) \ + return error; \ + \ + clazz[0].serv_id = serv_id_1; \ + clazz[0].serv_data = serv_data_1; \ + clazz[1].serv_id = serv_id_2; \ + clazz[1].serv_data = serv_data_2; \ + clazz[2].serv_id = NULL; \ + clazz[2].serv_data = NULL; \ + \ + *output_class = clazz; \ + \ + return FT_Err_Ok; \ + } + +#define FT_DEFINE_SERVICEDESCREC3( class_, \ + serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, \ + serv_id_3, serv_data_3 ) \ + void \ + FT_Destroy_Class_ ## class_( FT_Library library, \ + FT_ServiceDescRec* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + \ + \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_ ## class_( FT_Library library, \ + FT_ServiceDescRec** output_class ) \ + { \ + FT_ServiceDescRec* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + \ + if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 4 ) ) \ + return error; \ + \ + clazz[0].serv_id = serv_id_1; \ + clazz[0].serv_data = serv_data_1; \ + clazz[1].serv_id = serv_id_2; \ + clazz[1].serv_data = serv_data_2; \ + clazz[2].serv_id = serv_id_3; \ + clazz[2].serv_data = serv_data_3; \ + clazz[3].serv_id = NULL; \ + clazz[3].serv_data = NULL; \ + \ + *output_class = clazz; \ + \ + return FT_Err_Ok; \ + } + +#define FT_DEFINE_SERVICEDESCREC4( class_, \ + serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, \ + serv_id_3, serv_data_3, \ + serv_id_4, serv_data_4 ) \ + void \ + FT_Destroy_Class_ ## class_( FT_Library library, \ + FT_ServiceDescRec* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + \ + \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_ ## class_( FT_Library library, \ + FT_ServiceDescRec** output_class ) \ + { \ + FT_ServiceDescRec* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + \ + if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 5 ) ) \ + return error; \ + \ + clazz[0].serv_id = serv_id_1; \ + clazz[0].serv_data = serv_data_1; \ + clazz[1].serv_id = serv_id_2; \ + clazz[1].serv_data = serv_data_2; \ + clazz[2].serv_id = serv_id_3; \ + clazz[2].serv_data = serv_data_3; \ + clazz[3].serv_id = serv_id_4; \ + clazz[3].serv_data = serv_data_4; \ + clazz[4].serv_id = NULL; \ + clazz[4].serv_data = NULL; \ + \ + *output_class = clazz; \ + \ + return FT_Err_Ok; \ + } + +#define FT_DEFINE_SERVICEDESCREC5( class_, \ + serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, \ + serv_id_3, serv_data_3, \ + serv_id_4, serv_data_4, \ + serv_id_5, serv_data_5 ) \ + void \ + FT_Destroy_Class_ ## class_( FT_Library library, \ + FT_ServiceDescRec* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + \ + \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_ ## class_( FT_Library library, \ + FT_ServiceDescRec** output_class ) \ + { \ + FT_ServiceDescRec* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + \ + if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 6 ) ) \ + return error; \ + \ + clazz[0].serv_id = serv_id_1; \ + clazz[0].serv_data = serv_data_1; \ + clazz[1].serv_id = serv_id_2; \ + clazz[1].serv_data = serv_data_2; \ + clazz[2].serv_id = serv_id_3; \ + clazz[2].serv_data = serv_data_3; \ + clazz[3].serv_id = serv_id_4; \ + clazz[3].serv_data = serv_data_4; \ + clazz[4].serv_id = serv_id_5; \ + clazz[4].serv_data = serv_data_5; \ + clazz[5].serv_id = NULL; \ + clazz[5].serv_data = NULL; \ + \ + *output_class = clazz; \ + \ + return FT_Err_Ok; \ + } + +#define FT_DEFINE_SERVICEDESCREC6( class_, \ + serv_id_1, serv_data_1, \ + serv_id_2, serv_data_2, \ + serv_id_3, serv_data_3, \ + serv_id_4, serv_data_4, \ + serv_id_5, serv_data_5, \ + serv_id_6, serv_data_6 ) \ + void \ + FT_Destroy_Class_ ## class_( FT_Library library, \ + FT_ServiceDescRec* clazz ) \ + { \ + FT_Memory memory = library->memory; \ + \ + \ + if ( clazz ) \ + FT_FREE( clazz ); \ + } \ + \ + FT_Error \ + FT_Create_Class_ ## class_( FT_Library library, \ + FT_ServiceDescRec** output_class) \ + { \ + FT_ServiceDescRec* clazz; \ + FT_Error error; \ + FT_Memory memory = library->memory; \ + \ + \ + if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 7 ) ) \ + return error; \ + \ + clazz[0].serv_id = serv_id_1; \ + clazz[0].serv_data = serv_data_1; \ + clazz[1].serv_id = serv_id_2; \ + clazz[1].serv_data = serv_data_2; \ + clazz[2].serv_id = serv_id_3; \ + clazz[2].serv_data = serv_data_3; \ + clazz[3].serv_id = serv_id_4; \ + clazz[3].serv_data = serv_data_4; \ + clazz[4].serv_id = serv_id_5; \ + clazz[4].serv_data = serv_data_5; \ + clazz[5].serv_id = serv_id_6; \ + clazz[5].serv_data = serv_data_6; \ + clazz[6].serv_id = NULL; \ + clazz[6].serv_data = NULL; \ + \ + *output_class = clazz; \ + \ + return FT_Err_Ok; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + + /* + * Parse a list of FT_ServiceDescRec descriptors and look for + * a specific service by ID. Note that the last element in the + * array must be { NULL, NULL }, and that the function should + * return NULL if the service isn't available. + * + * This function can be used by modules to implement their + * `get_service' method. + */ + FT_BASE( FT_Pointer ) + ft_service_list_lookup( FT_ServiceDesc service_descriptors, + const char* service_id ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** S E R V I C E S C A C H E *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * This structure is used to store a cache for several frequently used + * services. It is the type of `face->internal->services'. You + * should only use FT_FACE_LOOKUP_SERVICE to access it. + * + * All fields should have the type FT_Pointer to relax compilation + * dependencies. We assume the developer isn't completely stupid. + * + * Each field must be named `service_XXXX' where `XXX' corresponds to + * the correct FT_SERVICE_ID_XXXX macro. See the definition of + * FT_FACE_LOOKUP_SERVICE below how this is implemented. + * + */ + typedef struct FT_ServiceCacheRec_ + { + FT_Pointer service_POSTSCRIPT_FONT_NAME; + FT_Pointer service_MULTI_MASTERS; + FT_Pointer service_GLYPH_DICT; + FT_Pointer service_PFR_METRICS; + FT_Pointer service_WINFNT; + + } FT_ServiceCacheRec, *FT_ServiceCache; + + + /* + * A magic number used within the services cache. + */ +#define FT_SERVICE_UNAVAILABLE ((FT_Pointer)-2) /* magic number */ + + + /* + * @macro: + * FT_FACE_LOOKUP_SERVICE + * + * @description: + * This macro is used to lookup a service from a face's driver module + * using its cache. + * + * @input: + * face:: + * The source face handle containing the cache. + * + * field :: + * The field name in the cache. + * + * id :: + * The service ID. + * + * @output: + * ptr :: + * A variable receiving the service data. NULL if not available. + */ +#ifdef __cplusplus + +#define FT_FACE_LOOKUP_SERVICE( face, ptr, id ) \ + FT_BEGIN_STMNT \ + FT_Pointer svc; \ + FT_Pointer* Pptr = (FT_Pointer*)&(ptr); \ + \ + \ + svc = FT_FACE( face )->internal->services. service_ ## id; \ + if ( svc == FT_SERVICE_UNAVAILABLE ) \ + svc = NULL; \ + else if ( svc == NULL ) \ + { \ + FT_FACE_FIND_SERVICE( face, svc, id ); \ + \ + FT_FACE( face )->internal->services. service_ ## id = \ + (FT_Pointer)( svc != NULL ? svc \ + : FT_SERVICE_UNAVAILABLE ); \ + } \ + *Pptr = svc; \ + FT_END_STMNT + +#else /* !C++ */ + +#define FT_FACE_LOOKUP_SERVICE( face, ptr, id ) \ + FT_BEGIN_STMNT \ + FT_Pointer svc; \ + \ + \ + svc = FT_FACE( face )->internal->services. service_ ## id; \ + if ( svc == FT_SERVICE_UNAVAILABLE ) \ + svc = NULL; \ + else if ( svc == NULL ) \ + { \ + FT_FACE_FIND_SERVICE( face, svc, id ); \ + \ + FT_FACE( face )->internal->services. service_ ## id = \ + (FT_Pointer)( svc != NULL ? svc \ + : FT_SERVICE_UNAVAILABLE ); \ + } \ + ptr = svc; \ + FT_END_STMNT + +#endif /* !C++ */ + + /* + * A macro used to define new service structure types. + */ + +#define FT_DEFINE_SERVICE( name ) \ + typedef struct FT_Service_ ## name ## Rec_ \ + FT_Service_ ## name ## Rec ; \ + typedef struct FT_Service_ ## name ## Rec_ \ + const * FT_Service_ ## name ; \ + struct FT_Service_ ## name ## Rec_ + + /* */ + + /* + * The header files containing the services. + */ + +#define FT_SERVICE_BDF_H <freetype/internal/services/svbdf.h> +#define FT_SERVICE_CID_H <freetype/internal/services/svcid.h> +#define FT_SERVICE_GLYPH_DICT_H <freetype/internal/services/svgldict.h> +#define FT_SERVICE_GX_VALIDATE_H <freetype/internal/services/svgxval.h> +#define FT_SERVICE_KERNING_H <freetype/internal/services/svkern.h> +#define FT_SERVICE_MULTIPLE_MASTERS_H <freetype/internal/services/svmm.h> +#define FT_SERVICE_OPENTYPE_VALIDATE_H <freetype/internal/services/svotval.h> +#define FT_SERVICE_PFR_H <freetype/internal/services/svpfr.h> +#define FT_SERVICE_POSTSCRIPT_CMAPS_H <freetype/internal/services/svpscmap.h> +#define FT_SERVICE_POSTSCRIPT_INFO_H <freetype/internal/services/svpsinfo.h> +#define FT_SERVICE_POSTSCRIPT_NAME_H <freetype/internal/services/svpostnm.h> +#define FT_SERVICE_SFNT_H <freetype/internal/services/svsfnt.h> +#define FT_SERVICE_TRUETYPE_ENGINE_H <freetype/internal/services/svtteng.h> +#define FT_SERVICE_TT_CMAP_H <freetype/internal/services/svttcmap.h> +#define FT_SERVICE_WINFNT_H <freetype/internal/services/svwinfnt.h> +#define FT_SERVICE_XFREE86_NAME_H <freetype/internal/services/svxf86nm.h> +#define FT_SERVICE_TRUETYPE_GLYF_H <freetype/internal/services/svttglyf.h> + + /* */ + +FT_END_HEADER + +#endif /* __FTSERV_H__ */ + + +/* END */ diff --git a/include/freetype/internal/ftstream.h b/include/freetype/internal/ftstream.h new file mode 100644 index 0000000..8b18500 --- /dev/null +++ b/include/freetype/internal/ftstream.h @@ -0,0 +1,539 @@ +/***************************************************************************/ +/* */ +/* ftstream.h */ +/* */ +/* Stream handling (specification). */ +/* */ +/* Copyright 1996-2002, 2004-2006, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTSTREAM_H__ +#define __FTSTREAM_H__ + + +#include <ft2build.h> +#include FT_SYSTEM_H +#include FT_INTERNAL_OBJECTS_H + + +FT_BEGIN_HEADER + + + /* format of an 8-bit frame_op value: */ + /* */ + /* bit 76543210 */ + /* xxxxxxes */ + /* */ + /* s is set to 1 if the value is signed. */ + /* e is set to 1 if the value is little-endian. */ + /* xxx is a command. */ + +#define FT_FRAME_OP_SHIFT 2 +#define FT_FRAME_OP_SIGNED 1 +#define FT_FRAME_OP_LITTLE 2 +#define FT_FRAME_OP_COMMAND( x ) ( x >> FT_FRAME_OP_SHIFT ) + +#define FT_MAKE_FRAME_OP( command, little, sign ) \ + ( ( command << FT_FRAME_OP_SHIFT ) | ( little << 1 ) | sign ) + +#define FT_FRAME_OP_END 0 +#define FT_FRAME_OP_START 1 /* start a new frame */ +#define FT_FRAME_OP_BYTE 2 /* read 1-byte value */ +#define FT_FRAME_OP_SHORT 3 /* read 2-byte value */ +#define FT_FRAME_OP_LONG 4 /* read 4-byte value */ +#define FT_FRAME_OP_OFF3 5 /* read 3-byte value */ +#define FT_FRAME_OP_BYTES 6 /* read a bytes sequence */ + + + typedef enum FT_Frame_Op_ + { + ft_frame_end = 0, + ft_frame_start = FT_MAKE_FRAME_OP( FT_FRAME_OP_START, 0, 0 ), + + ft_frame_byte = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTE, 0, 0 ), + ft_frame_schar = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTE, 0, 1 ), + + ft_frame_ushort_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 0, 0 ), + ft_frame_short_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 0, 1 ), + ft_frame_ushort_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 1, 0 ), + ft_frame_short_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 1, 1 ), + + ft_frame_ulong_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 0, 0 ), + ft_frame_long_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 0, 1 ), + ft_frame_ulong_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 1, 0 ), + ft_frame_long_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 1, 1 ), + + ft_frame_uoff3_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 0, 0 ), + ft_frame_off3_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 0, 1 ), + ft_frame_uoff3_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 1, 0 ), + ft_frame_off3_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 1, 1 ), + + ft_frame_bytes = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTES, 0, 0 ), + ft_frame_skip = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTES, 0, 1 ) + + } FT_Frame_Op; + + + typedef struct FT_Frame_Field_ + { + FT_Byte value; + FT_Byte size; + FT_UShort offset; + + } FT_Frame_Field; + + + /* Construct an FT_Frame_Field out of a structure type and a field name. */ + /* The structure type must be set in the FT_STRUCTURE macro before */ + /* calling the FT_FRAME_START() macro. */ + /* */ +#define FT_FIELD_SIZE( f ) \ + (FT_Byte)sizeof ( ((FT_STRUCTURE*)0)->f ) + +#define FT_FIELD_SIZE_DELTA( f ) \ + (FT_Byte)sizeof ( ((FT_STRUCTURE*)0)->f[0] ) + +#define FT_FIELD_OFFSET( f ) \ + (FT_UShort)( offsetof( FT_STRUCTURE, f ) ) + +#define FT_FRAME_FIELD( frame_op, field ) \ + { \ + frame_op, \ + FT_FIELD_SIZE( field ), \ + FT_FIELD_OFFSET( field ) \ + } + +#define FT_MAKE_EMPTY_FIELD( frame_op ) { frame_op, 0, 0 } + +#define FT_FRAME_START( size ) { ft_frame_start, 0, size } +#define FT_FRAME_END { ft_frame_end, 0, 0 } + +#define FT_FRAME_LONG( f ) FT_FRAME_FIELD( ft_frame_long_be, f ) +#define FT_FRAME_ULONG( f ) FT_FRAME_FIELD( ft_frame_ulong_be, f ) +#define FT_FRAME_SHORT( f ) FT_FRAME_FIELD( ft_frame_short_be, f ) +#define FT_FRAME_USHORT( f ) FT_FRAME_FIELD( ft_frame_ushort_be, f ) +#define FT_FRAME_OFF3( f ) FT_FRAME_FIELD( ft_frame_off3_be, f ) +#define FT_FRAME_UOFF3( f ) FT_FRAME_FIELD( ft_frame_uoff3_be, f ) +#define FT_FRAME_BYTE( f ) FT_FRAME_FIELD( ft_frame_byte, f ) +#define FT_FRAME_CHAR( f ) FT_FRAME_FIELD( ft_frame_schar, f ) + +#define FT_FRAME_LONG_LE( f ) FT_FRAME_FIELD( ft_frame_long_le, f ) +#define FT_FRAME_ULONG_LE( f ) FT_FRAME_FIELD( ft_frame_ulong_le, f ) +#define FT_FRAME_SHORT_LE( f ) FT_FRAME_FIELD( ft_frame_short_le, f ) +#define FT_FRAME_USHORT_LE( f ) FT_FRAME_FIELD( ft_frame_ushort_le, f ) +#define FT_FRAME_OFF3_LE( f ) FT_FRAME_FIELD( ft_frame_off3_le, f ) +#define FT_FRAME_UOFF3_LE( f ) FT_FRAME_FIELD( ft_frame_uoff3_le, f ) + +#define FT_FRAME_SKIP_LONG { ft_frame_long_be, 0, 0 } +#define FT_FRAME_SKIP_SHORT { ft_frame_short_be, 0, 0 } +#define FT_FRAME_SKIP_BYTE { ft_frame_byte, 0, 0 } + +#define FT_FRAME_BYTES( field, count ) \ + { \ + ft_frame_bytes, \ + count, \ + FT_FIELD_OFFSET( field ) \ + } + +#define FT_FRAME_SKIP_BYTES( count ) { ft_frame_skip, count, 0 } + + + /*************************************************************************/ + /* */ + /* Integer extraction macros -- the `buffer' parameter must ALWAYS be of */ + /* type `char*' or equivalent (1-byte elements). */ + /* */ + +#define FT_BYTE_( p, i ) ( ((const FT_Byte*)(p))[(i)] ) +#define FT_INT8_( p, i ) ( ((const FT_Char*)(p))[(i)] ) + +#define FT_INT16( x ) ( (FT_Int16)(x) ) +#define FT_UINT16( x ) ( (FT_UInt16)(x) ) +#define FT_INT32( x ) ( (FT_Int32)(x) ) +#define FT_UINT32( x ) ( (FT_UInt32)(x) ) + +#define FT_BYTE_I16( p, i, s ) ( FT_INT16( FT_BYTE_( p, i ) ) << (s) ) +#define FT_BYTE_U16( p, i, s ) ( FT_UINT16( FT_BYTE_( p, i ) ) << (s) ) +#define FT_BYTE_I32( p, i, s ) ( FT_INT32( FT_BYTE_( p, i ) ) << (s) ) +#define FT_BYTE_U32( p, i, s ) ( FT_UINT32( FT_BYTE_( p, i ) ) << (s) ) + +#define FT_INT8_I16( p, i, s ) ( FT_INT16( FT_INT8_( p, i ) ) << (s) ) +#define FT_INT8_U16( p, i, s ) ( FT_UINT16( FT_INT8_( p, i ) ) << (s) ) +#define FT_INT8_I32( p, i, s ) ( FT_INT32( FT_INT8_( p, i ) ) << (s) ) +#define FT_INT8_U32( p, i, s ) ( FT_UINT32( FT_INT8_( p, i ) ) << (s) ) + + +#define FT_PEEK_SHORT( p ) FT_INT16( FT_INT8_I16( p, 0, 8) | \ + FT_BYTE_I16( p, 1, 0) ) + +#define FT_PEEK_USHORT( p ) FT_UINT16( FT_BYTE_U16( p, 0, 8 ) | \ + FT_BYTE_U16( p, 1, 0 ) ) + +#define FT_PEEK_LONG( p ) FT_INT32( FT_INT8_I32( p, 0, 24 ) | \ + FT_BYTE_I32( p, 1, 16 ) | \ + FT_BYTE_I32( p, 2, 8 ) | \ + FT_BYTE_I32( p, 3, 0 ) ) + +#define FT_PEEK_ULONG( p ) FT_UINT32( FT_BYTE_U32( p, 0, 24 ) | \ + FT_BYTE_U32( p, 1, 16 ) | \ + FT_BYTE_U32( p, 2, 8 ) | \ + FT_BYTE_U32( p, 3, 0 ) ) + +#define FT_PEEK_OFF3( p ) FT_INT32( FT_INT8_I32( p, 0, 16 ) | \ + FT_BYTE_I32( p, 1, 8 ) | \ + FT_BYTE_I32( p, 2, 0 ) ) + +#define FT_PEEK_UOFF3( p ) FT_UINT32( FT_BYTE_U32( p, 0, 16 ) | \ + FT_BYTE_U32( p, 1, 8 ) | \ + FT_BYTE_U32( p, 2, 0 ) ) + +#define FT_PEEK_SHORT_LE( p ) FT_INT16( FT_INT8_I16( p, 1, 8 ) | \ + FT_BYTE_I16( p, 0, 0 ) ) + +#define FT_PEEK_USHORT_LE( p ) FT_UINT16( FT_BYTE_U16( p, 1, 8 ) | \ + FT_BYTE_U16( p, 0, 0 ) ) + +#define FT_PEEK_LONG_LE( p ) FT_INT32( FT_INT8_I32( p, 3, 24 ) | \ + FT_BYTE_I32( p, 2, 16 ) | \ + FT_BYTE_I32( p, 1, 8 ) | \ + FT_BYTE_I32( p, 0, 0 ) ) + +#define FT_PEEK_ULONG_LE( p ) FT_UINT32( FT_BYTE_U32( p, 3, 24 ) | \ + FT_BYTE_U32( p, 2, 16 ) | \ + FT_BYTE_U32( p, 1, 8 ) | \ + FT_BYTE_U32( p, 0, 0 ) ) + +#define FT_PEEK_OFF3_LE( p ) FT_INT32( FT_INT8_I32( p, 2, 16 ) | \ + FT_BYTE_I32( p, 1, 8 ) | \ + FT_BYTE_I32( p, 0, 0 ) ) + +#define FT_PEEK_UOFF3_LE( p ) FT_UINT32( FT_BYTE_U32( p, 2, 16 ) | \ + FT_BYTE_U32( p, 1, 8 ) | \ + FT_BYTE_U32( p, 0, 0 ) ) + + +#define FT_NEXT_CHAR( buffer ) \ + ( (signed char)*buffer++ ) + +#define FT_NEXT_BYTE( buffer ) \ + ( (unsigned char)*buffer++ ) + +#define FT_NEXT_SHORT( buffer ) \ + ( (short)( buffer += 2, FT_PEEK_SHORT( buffer - 2 ) ) ) + +#define FT_NEXT_USHORT( buffer ) \ + ( (unsigned short)( buffer += 2, FT_PEEK_USHORT( buffer - 2 ) ) ) + +#define FT_NEXT_OFF3( buffer ) \ + ( (long)( buffer += 3, FT_PEEK_OFF3( buffer - 3 ) ) ) + +#define FT_NEXT_UOFF3( buffer ) \ + ( (unsigned long)( buffer += 3, FT_PEEK_UOFF3( buffer - 3 ) ) ) + +#define FT_NEXT_LONG( buffer ) \ + ( (long)( buffer += 4, FT_PEEK_LONG( buffer - 4 ) ) ) + +#define FT_NEXT_ULONG( buffer ) \ + ( (unsigned long)( buffer += 4, FT_PEEK_ULONG( buffer - 4 ) ) ) + + +#define FT_NEXT_SHORT_LE( buffer ) \ + ( (short)( buffer += 2, FT_PEEK_SHORT_LE( buffer - 2 ) ) ) + +#define FT_NEXT_USHORT_LE( buffer ) \ + ( (unsigned short)( buffer += 2, FT_PEEK_USHORT_LE( buffer - 2 ) ) ) + +#define FT_NEXT_OFF3_LE( buffer ) \ + ( (long)( buffer += 3, FT_PEEK_OFF3_LE( buffer - 3 ) ) ) + +#define FT_NEXT_UOFF3_LE( buffer ) \ + ( (unsigned long)( buffer += 3, FT_PEEK_UOFF3_LE( buffer - 3 ) ) ) + +#define FT_NEXT_LONG_LE( buffer ) \ + ( (long)( buffer += 4, FT_PEEK_LONG_LE( buffer - 4 ) ) ) + +#define FT_NEXT_ULONG_LE( buffer ) \ + ( (unsigned long)( buffer += 4, FT_PEEK_ULONG_LE( buffer - 4 ) ) ) + + + /*************************************************************************/ + /* */ + /* Each GET_xxxx() macro uses an implicit `stream' variable. */ + /* */ +#if 0 +#define FT_GET_MACRO( type ) FT_NEXT_ ## type ( stream->cursor ) + +#define FT_GET_CHAR() FT_GET_MACRO( CHAR ) +#define FT_GET_BYTE() FT_GET_MACRO( BYTE ) +#define FT_GET_SHORT() FT_GET_MACRO( SHORT ) +#define FT_GET_USHORT() FT_GET_MACRO( USHORT ) +#define FT_GET_OFF3() FT_GET_MACRO( OFF3 ) +#define FT_GET_UOFF3() FT_GET_MACRO( UOFF3 ) +#define FT_GET_LONG() FT_GET_MACRO( LONG ) +#define FT_GET_ULONG() FT_GET_MACRO( ULONG ) +#define FT_GET_TAG4() FT_GET_MACRO( ULONG ) + +#define FT_GET_SHORT_LE() FT_GET_MACRO( SHORT_LE ) +#define FT_GET_USHORT_LE() FT_GET_MACRO( USHORT_LE ) +#define FT_GET_LONG_LE() FT_GET_MACRO( LONG_LE ) +#define FT_GET_ULONG_LE() FT_GET_MACRO( ULONG_LE ) + +#else +#define FT_GET_MACRO( func, type ) ( (type)func( stream ) ) + +#define FT_GET_CHAR() FT_GET_MACRO( FT_Stream_GetChar, FT_Char ) +#define FT_GET_BYTE() FT_GET_MACRO( FT_Stream_GetChar, FT_Byte ) +#define FT_GET_SHORT() FT_GET_MACRO( FT_Stream_GetUShort, FT_Short ) +#define FT_GET_USHORT() FT_GET_MACRO( FT_Stream_GetUShort, FT_UShort ) +#define FT_GET_OFF3() FT_GET_MACRO( FT_Stream_GetUOffset, FT_Long ) +#define FT_GET_UOFF3() FT_GET_MACRO( FT_Stream_GetUOffset, FT_ULong ) +#define FT_GET_LONG() FT_GET_MACRO( FT_Stream_GetULong, FT_Long ) +#define FT_GET_ULONG() FT_GET_MACRO( FT_Stream_GetULong, FT_ULong ) +#define FT_GET_TAG4() FT_GET_MACRO( FT_Stream_GetULong, FT_ULong ) + +#define FT_GET_SHORT_LE() FT_GET_MACRO( FT_Stream_GetUShortLE, FT_Short ) +#define FT_GET_USHORT_LE() FT_GET_MACRO( FT_Stream_GetUShortLE, FT_UShort ) +#define FT_GET_LONG_LE() FT_GET_MACRO( FT_Stream_GetULongLE, FT_Long ) +#define FT_GET_ULONG_LE() FT_GET_MACRO( FT_Stream_GetULongLE, FT_ULong ) +#endif + +#define FT_READ_MACRO( func, type, var ) \ + ( var = (type)func( stream, &error ), \ + error != FT_Err_Ok ) + +#define FT_READ_BYTE( var ) FT_READ_MACRO( FT_Stream_ReadChar, FT_Byte, var ) +#define FT_READ_CHAR( var ) FT_READ_MACRO( FT_Stream_ReadChar, FT_Char, var ) +#define FT_READ_SHORT( var ) FT_READ_MACRO( FT_Stream_ReadUShort, FT_Short, var ) +#define FT_READ_USHORT( var ) FT_READ_MACRO( FT_Stream_ReadUShort, FT_UShort, var ) +#define FT_READ_OFF3( var ) FT_READ_MACRO( FT_Stream_ReadUOffset, FT_Long, var ) +#define FT_READ_UOFF3( var ) FT_READ_MACRO( FT_Stream_ReadUOffset, FT_ULong, var ) +#define FT_READ_LONG( var ) FT_READ_MACRO( FT_Stream_ReadULong, FT_Long, var ) +#define FT_READ_ULONG( var ) FT_READ_MACRO( FT_Stream_ReadULong, FT_ULong, var ) + +#define FT_READ_SHORT_LE( var ) FT_READ_MACRO( FT_Stream_ReadUShortLE, FT_Short, var ) +#define FT_READ_USHORT_LE( var ) FT_READ_MACRO( FT_Stream_ReadUShortLE, FT_UShort, var ) +#define FT_READ_LONG_LE( var ) FT_READ_MACRO( FT_Stream_ReadULongLE, FT_Long, var ) +#define FT_READ_ULONG_LE( var ) FT_READ_MACRO( FT_Stream_ReadULongLE, FT_ULong, var ) + + +#ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM + + /* initialize a stream for reading a regular system stream */ + FT_BASE( FT_Error ) + FT_Stream_Open( FT_Stream stream, + const char* filepathname ); + +#endif /* FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */ + + + /* create a new (input) stream from an FT_Open_Args structure */ + FT_BASE( FT_Error ) + FT_Stream_New( FT_Library library, + const FT_Open_Args* args, + FT_Stream *astream ); + + /* free a stream */ + FT_BASE( void ) + FT_Stream_Free( FT_Stream stream, + FT_Int external ); + + /* initialize a stream for reading in-memory data */ + FT_BASE( void ) + FT_Stream_OpenMemory( FT_Stream stream, + const FT_Byte* base, + FT_ULong size ); + + /* close a stream (does not destroy the stream structure) */ + FT_BASE( void ) + FT_Stream_Close( FT_Stream stream ); + + + /* seek within a stream. position is relative to start of stream */ + FT_BASE( FT_Error ) + FT_Stream_Seek( FT_Stream stream, + FT_ULong pos ); + + /* skip bytes in a stream */ + FT_BASE( FT_Error ) + FT_Stream_Skip( FT_Stream stream, + FT_Long distance ); + + /* return current stream position */ + FT_BASE( FT_Long ) + FT_Stream_Pos( FT_Stream stream ); + + /* read bytes from a stream into a user-allocated buffer, returns an */ + /* error if not all bytes could be read. */ + FT_BASE( FT_Error ) + FT_Stream_Read( FT_Stream stream, + FT_Byte* buffer, + FT_ULong count ); + + /* read bytes from a stream at a given position */ + FT_BASE( FT_Error ) + FT_Stream_ReadAt( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ); + + /* try to read bytes at the end of a stream; return number of bytes */ + /* really available */ + FT_BASE( FT_ULong ) + FT_Stream_TryRead( FT_Stream stream, + FT_Byte* buffer, + FT_ULong count ); + + /* Enter a frame of `count' consecutive bytes in a stream. Returns an */ + /* error if the frame could not be read/accessed. The caller can use */ + /* the FT_Stream_Get_XXX functions to retrieve frame data without */ + /* error checks. */ + /* */ + /* You must _always_ call FT_Stream_ExitFrame() once you have entered */ + /* a stream frame! */ + /* */ + FT_BASE( FT_Error ) + FT_Stream_EnterFrame( FT_Stream stream, + FT_ULong count ); + + /* exit a stream frame */ + FT_BASE( void ) + FT_Stream_ExitFrame( FT_Stream stream ); + + /* Extract a stream frame. If the stream is disk-based, a heap block */ + /* is allocated and the frame bytes are read into it. If the stream */ + /* is memory-based, this function simply set a pointer to the data. */ + /* */ + /* Useful to optimize access to memory-based streams transparently. */ + /* */ + /* All extracted frames must be `freed' with a call to the function */ + /* FT_Stream_ReleaseFrame(). */ + /* */ + FT_BASE( FT_Error ) + FT_Stream_ExtractFrame( FT_Stream stream, + FT_ULong count, + FT_Byte** pbytes ); + + /* release an extract frame (see FT_Stream_ExtractFrame) */ + FT_BASE( void ) + FT_Stream_ReleaseFrame( FT_Stream stream, + FT_Byte** pbytes ); + + /* read a byte from an entered frame */ + FT_BASE( FT_Char ) + FT_Stream_GetChar( FT_Stream stream ); + + /* read a 16-bit big-endian unsigned integer from an entered frame */ + FT_BASE( FT_UShort ) + FT_Stream_GetUShort( FT_Stream stream ); + + /* read a 24-bit big-endian unsigned integer from an entered frame */ + FT_BASE( FT_ULong ) + FT_Stream_GetUOffset( FT_Stream stream ); + + /* read a 32-bit big-endian unsigned integer from an entered frame */ + FT_BASE( FT_ULong ) + FT_Stream_GetULong( FT_Stream stream ); + + /* read a 16-bit little-endian unsigned integer from an entered frame */ + FT_BASE( FT_UShort ) + FT_Stream_GetUShortLE( FT_Stream stream ); + + /* read a 32-bit little-endian unsigned integer from an entered frame */ + FT_BASE( FT_ULong ) + FT_Stream_GetULongLE( FT_Stream stream ); + + + /* read a byte from a stream */ + FT_BASE( FT_Char ) + FT_Stream_ReadChar( FT_Stream stream, + FT_Error* error ); + + /* read a 16-bit big-endian unsigned integer from a stream */ + FT_BASE( FT_UShort ) + FT_Stream_ReadUShort( FT_Stream stream, + FT_Error* error ); + + /* read a 24-bit big-endian unsigned integer from a stream */ + FT_BASE( FT_ULong ) + FT_Stream_ReadUOffset( FT_Stream stream, + FT_Error* error ); + + /* read a 32-bit big-endian integer from a stream */ + FT_BASE( FT_ULong ) + FT_Stream_ReadULong( FT_Stream stream, + FT_Error* error ); + + /* read a 16-bit little-endian unsigned integer from a stream */ + FT_BASE( FT_UShort ) + FT_Stream_ReadUShortLE( FT_Stream stream, + FT_Error* error ); + + /* read a 32-bit little-endian unsigned integer from a stream */ + FT_BASE( FT_ULong ) + FT_Stream_ReadULongLE( FT_Stream stream, + FT_Error* error ); + + /* Read a structure from a stream. The structure must be described */ + /* by an array of FT_Frame_Field records. */ + FT_BASE( FT_Error ) + FT_Stream_ReadFields( FT_Stream stream, + const FT_Frame_Field* fields, + void* structure ); + + +#define FT_STREAM_POS() \ + FT_Stream_Pos( stream ) + +#define FT_STREAM_SEEK( position ) \ + FT_SET_ERROR( FT_Stream_Seek( stream, position ) ) + +#define FT_STREAM_SKIP( distance ) \ + FT_SET_ERROR( FT_Stream_Skip( stream, distance ) ) + +#define FT_STREAM_READ( buffer, count ) \ + FT_SET_ERROR( FT_Stream_Read( stream, \ + (FT_Byte*)buffer, \ + count ) ) + +#define FT_STREAM_READ_AT( position, buffer, count ) \ + FT_SET_ERROR( FT_Stream_ReadAt( stream, \ + position, \ + (FT_Byte*)buffer, \ + count ) ) + +#define FT_STREAM_READ_FIELDS( fields, object ) \ + FT_SET_ERROR( FT_Stream_ReadFields( stream, fields, object ) ) + + +#define FT_FRAME_ENTER( size ) \ + FT_SET_ERROR( \ + FT_DEBUG_INNER( FT_Stream_EnterFrame( stream, size ) ) ) + +#define FT_FRAME_EXIT() \ + FT_DEBUG_INNER( FT_Stream_ExitFrame( stream ) ) + +#define FT_FRAME_EXTRACT( size, bytes ) \ + FT_SET_ERROR( \ + FT_DEBUG_INNER( FT_Stream_ExtractFrame( stream, size, \ + (FT_Byte**)&(bytes) ) ) ) + +#define FT_FRAME_RELEASE( bytes ) \ + FT_DEBUG_INNER( FT_Stream_ReleaseFrame( stream, \ + (FT_Byte**)&(bytes) ) ) + + +FT_END_HEADER + +#endif /* __FTSTREAM_H__ */ + + +/* END */ diff --git a/include/freetype/internal/fttrace.h b/include/freetype/internal/fttrace.h new file mode 100644 index 0000000..fbefdbd --- /dev/null +++ b/include/freetype/internal/fttrace.h @@ -0,0 +1,144 @@ +/***************************************************************************/ +/* */ +/* fttrace.h */ +/* */ +/* Tracing handling (specification only). */ +/* */ +/* Copyright 2002, 2004-2007, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* definitions of trace levels for FreeType 2 */ + + /* the first level must always be `trace_any' */ +FT_TRACE_DEF( any ) + + /* base components */ +FT_TRACE_DEF( calc ) /* calculations (ftcalc.c) */ +FT_TRACE_DEF( memory ) /* memory manager (ftobjs.c) */ +FT_TRACE_DEF( stream ) /* stream manager (ftstream.c) */ +FT_TRACE_DEF( io ) /* i/o interface (ftsystem.c) */ +FT_TRACE_DEF( list ) /* list management (ftlist.c) */ +FT_TRACE_DEF( init ) /* initialization (ftinit.c) */ +FT_TRACE_DEF( objs ) /* base objects (ftobjs.c) */ +FT_TRACE_DEF( outline ) /* outline management (ftoutln.c) */ +FT_TRACE_DEF( glyph ) /* glyph management (ftglyph.c) */ +FT_TRACE_DEF( gloader ) /* glyph loader (ftgloadr.c) */ + +FT_TRACE_DEF( raster ) /* monochrome rasterizer (ftraster.c) */ +FT_TRACE_DEF( smooth ) /* anti-aliasing raster (ftgrays.c) */ +FT_TRACE_DEF( mm ) /* MM interface (ftmm.c) */ +FT_TRACE_DEF( raccess ) /* resource fork accessor (ftrfork.c) */ +FT_TRACE_DEF( synth ) /* bold/slant synthesizer (ftsynth.c) */ + + /* Cache sub-system */ +FT_TRACE_DEF( cache ) /* cache sub-system (ftcache.c, etc.) */ + + /* SFNT driver components */ +FT_TRACE_DEF( sfdriver ) /* SFNT font driver (sfdriver.c) */ +FT_TRACE_DEF( sfobjs ) /* SFNT object handler (sfobjs.c) */ +FT_TRACE_DEF( ttcmap ) /* charmap handler (ttcmap.c) */ +FT_TRACE_DEF( ttkern ) /* kerning handler (ttkern.c) */ +FT_TRACE_DEF( ttload ) /* basic TrueType tables (ttload.c) */ +FT_TRACE_DEF( ttmtx ) /* metrics-related tables (ttmtx.c) */ +FT_TRACE_DEF( ttpost ) /* PS table processing (ttpost.c) */ +FT_TRACE_DEF( ttsbit ) /* TrueType sbit handling (ttsbit.c) */ +FT_TRACE_DEF( ttbdf ) /* TrueType embedded BDF (ttbdf.c) */ + + /* TrueType driver components */ +FT_TRACE_DEF( ttdriver ) /* TT font driver (ttdriver.c) */ +FT_TRACE_DEF( ttgload ) /* TT glyph loader (ttgload.c) */ +FT_TRACE_DEF( ttinterp ) /* bytecode interpreter (ttinterp.c) */ +FT_TRACE_DEF( ttobjs ) /* TT objects manager (ttobjs.c) */ +FT_TRACE_DEF( ttpload ) /* TT data/program loader (ttpload.c) */ +FT_TRACE_DEF( ttgxvar ) /* TrueType GX var handler (ttgxvar.c) */ + + /* Type 1 driver components */ +FT_TRACE_DEF( t1afm ) +FT_TRACE_DEF( t1driver ) +FT_TRACE_DEF( t1gload ) +FT_TRACE_DEF( t1hint ) +FT_TRACE_DEF( t1load ) +FT_TRACE_DEF( t1objs ) +FT_TRACE_DEF( t1parse ) + + /* PostScript helper module `psaux' */ +FT_TRACE_DEF( t1decode ) +FT_TRACE_DEF( psobjs ) + + /* PostScript hinting module `pshinter' */ +FT_TRACE_DEF( pshrec ) +FT_TRACE_DEF( pshalgo1 ) +FT_TRACE_DEF( pshalgo2 ) + + /* Type 2 driver components */ +FT_TRACE_DEF( cffdriver ) +FT_TRACE_DEF( cffgload ) +FT_TRACE_DEF( cffload ) +FT_TRACE_DEF( cffobjs ) +FT_TRACE_DEF( cffparse ) + + /* Type 42 driver component */ +FT_TRACE_DEF( t42 ) + + /* CID driver components */ +FT_TRACE_DEF( cidafm ) +FT_TRACE_DEF( ciddriver ) +FT_TRACE_DEF( cidgload ) +FT_TRACE_DEF( cidload ) +FT_TRACE_DEF( cidobjs ) +FT_TRACE_DEF( cidparse ) + + /* Windows font component */ +FT_TRACE_DEF( winfnt ) + + /* PCF font components */ +FT_TRACE_DEF( pcfdriver ) +FT_TRACE_DEF( pcfread ) + + /* BDF font components */ +FT_TRACE_DEF( bdfdriver ) +FT_TRACE_DEF( bdflib ) + + /* PFR font component */ +FT_TRACE_DEF( pfr ) + + /* OpenType validation components */ +FT_TRACE_DEF( otvmodule ) +FT_TRACE_DEF( otvcommon ) +FT_TRACE_DEF( otvbase ) +FT_TRACE_DEF( otvgdef ) +FT_TRACE_DEF( otvgpos ) +FT_TRACE_DEF( otvgsub ) +FT_TRACE_DEF( otvjstf ) +FT_TRACE_DEF( otvmath ) + + /* TrueTypeGX/AAT validation components */ +FT_TRACE_DEF( gxvmodule ) +FT_TRACE_DEF( gxvcommon ) +FT_TRACE_DEF( gxvfeat ) +FT_TRACE_DEF( gxvmort ) +FT_TRACE_DEF( gxvmorx ) +FT_TRACE_DEF( gxvbsln ) +FT_TRACE_DEF( gxvjust ) +FT_TRACE_DEF( gxvkern ) +FT_TRACE_DEF( gxvopbd ) +FT_TRACE_DEF( gxvtrak ) +FT_TRACE_DEF( gxvprop ) +FT_TRACE_DEF( gxvlcar ) + + /* autofit components */ +FT_TRACE_DEF( afcjk ) +FT_TRACE_DEF( aflatin ) +FT_TRACE_DEF( aflatin2 ) +FT_TRACE_DEF( afwarp ) + +/* END */ diff --git a/include/freetype/internal/ftvalid.h b/include/freetype/internal/ftvalid.h new file mode 100644 index 0000000..00cd85e --- /dev/null +++ b/include/freetype/internal/ftvalid.h @@ -0,0 +1,150 @@ +/***************************************************************************/ +/* */ +/* ftvalid.h */ +/* */ +/* FreeType validation support (specification). */ +/* */ +/* Copyright 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTVALID_H__ +#define __FTVALID_H__ + +#include <ft2build.h> +#include FT_CONFIG_STANDARD_LIBRARY_H /* for ft_setjmp and ft_longjmp */ + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** V A L I D A T I O N ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* handle to a validation object */ + typedef struct FT_ValidatorRec_ volatile* FT_Validator; + + + /*************************************************************************/ + /* */ + /* There are three distinct validation levels defined here: */ + /* */ + /* FT_VALIDATE_DEFAULT :: */ + /* A table that passes this validation level can be used reliably by */ + /* FreeType. It generally means that all offsets have been checked to */ + /* prevent out-of-bound reads, that array counts are correct, etc. */ + /* */ + /* FT_VALIDATE_TIGHT :: */ + /* A table that passes this validation level can be used reliably and */ + /* doesn't contain invalid data. For example, a charmap table that */ + /* returns invalid glyph indices will not pass, even though it can */ + /* be used with FreeType in default mode (the library will simply */ + /* return an error later when trying to load the glyph). */ + /* */ + /* It also checks that fields which must be a multiple of 2, 4, or 8, */ + /* don't have incorrect values, etc. */ + /* */ + /* FT_VALIDATE_PARANOID :: */ + /* Only for font debugging. Checks that a table follows the */ + /* specification by 100%. Very few fonts will be able to pass this */ + /* level anyway but it can be useful for certain tools like font */ + /* editors/converters. */ + /* */ + typedef enum FT_ValidationLevel_ + { + FT_VALIDATE_DEFAULT = 0, + FT_VALIDATE_TIGHT, + FT_VALIDATE_PARANOID + + } FT_ValidationLevel; + + + /* validator structure */ + typedef struct FT_ValidatorRec_ + { + const FT_Byte* base; /* address of table in memory */ + const FT_Byte* limit; /* `base' + sizeof(table) in memory */ + FT_ValidationLevel level; /* validation level */ + FT_Error error; /* error returned. 0 means success */ + + ft_jmp_buf jump_buffer; /* used for exception handling */ + + } FT_ValidatorRec; + + +#define FT_VALIDATOR( x ) ((FT_Validator)( x )) + + + FT_BASE( void ) + ft_validator_init( FT_Validator valid, + const FT_Byte* base, + const FT_Byte* limit, + FT_ValidationLevel level ); + + /* Do not use this. It's broken and will cause your validator to crash */ + /* if you run it on an invalid font. */ + FT_BASE( FT_Int ) + ft_validator_run( FT_Validator valid ); + + /* Sets the error field in a validator, then calls `longjmp' to return */ + /* to high-level caller. Using `setjmp/longjmp' avoids many stupid */ + /* error checks within the validation routines. */ + /* */ + FT_BASE( void ) + ft_validator_error( FT_Validator valid, + FT_Error error ); + + + /* Calls ft_validate_error. Assumes that the `valid' local variable */ + /* holds a pointer to the current validator object. */ + /* */ + /* Use preprocessor prescan to pass FT_ERR_PREFIX. */ + /* */ +#define FT_INVALID( _prefix, _error ) FT_INVALID_( _prefix, _error ) +#define FT_INVALID_( _prefix, _error ) \ + ft_validator_error( valid, _prefix ## _error ) + + /* called when a broken table is detected */ +#define FT_INVALID_TOO_SHORT \ + FT_INVALID( FT_ERR_PREFIX, Invalid_Table ) + + /* called when an invalid offset is detected */ +#define FT_INVALID_OFFSET \ + FT_INVALID( FT_ERR_PREFIX, Invalid_Offset ) + + /* called when an invalid format/value is detected */ +#define FT_INVALID_FORMAT \ + FT_INVALID( FT_ERR_PREFIX, Invalid_Table ) + + /* called when an invalid glyph index is detected */ +#define FT_INVALID_GLYPH_ID \ + FT_INVALID( FT_ERR_PREFIX, Invalid_Glyph_Index ) + + /* called when an invalid field value is detected */ +#define FT_INVALID_DATA \ + FT_INVALID( FT_ERR_PREFIX, Invalid_Table ) + + +FT_END_HEADER + +#endif /* __FTVALID_H__ */ + + +/* END */ diff --git a/include/freetype/internal/internal.h b/include/freetype/internal/internal.h new file mode 100644 index 0000000..f500a65 --- /dev/null +++ b/include/freetype/internal/internal.h @@ -0,0 +1,51 @@ +/***************************************************************************/ +/* */ +/* internal.h */ +/* */ +/* Internal header files (specification only). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is automatically included by `ft2build.h'. */ + /* Do not include it manually! */ + /* */ + /*************************************************************************/ + + +#define FT_INTERNAL_OBJECTS_H <freetype/internal/ftobjs.h> +#define FT_INTERNAL_PIC_H <freetype/internal/ftpic.h> +#define FT_INTERNAL_STREAM_H <freetype/internal/ftstream.h> +#define FT_INTERNAL_MEMORY_H <freetype/internal/ftmemory.h> +#define FT_INTERNAL_DEBUG_H <freetype/internal/ftdebug.h> +#define FT_INTERNAL_CALC_H <freetype/internal/ftcalc.h> +#define FT_INTERNAL_DRIVER_H <freetype/internal/ftdriver.h> +#define FT_INTERNAL_TRACE_H <freetype/internal/fttrace.h> +#define FT_INTERNAL_GLYPH_LOADER_H <freetype/internal/ftgloadr.h> +#define FT_INTERNAL_SFNT_H <freetype/internal/sfnt.h> +#define FT_INTERNAL_SERVICE_H <freetype/internal/ftserv.h> +#define FT_INTERNAL_RFORK_H <freetype/internal/ftrfork.h> +#define FT_INTERNAL_VALIDATE_H <freetype/internal/ftvalid.h> + +#define FT_INTERNAL_TRUETYPE_TYPES_H <freetype/internal/tttypes.h> +#define FT_INTERNAL_TYPE1_TYPES_H <freetype/internal/t1types.h> + +#define FT_INTERNAL_POSTSCRIPT_AUX_H <freetype/internal/psaux.h> +#define FT_INTERNAL_POSTSCRIPT_HINTS_H <freetype/internal/pshints.h> +#define FT_INTERNAL_POSTSCRIPT_GLOBALS_H <freetype/internal/psglobal.h> + +#define FT_INTERNAL_AUTOHINT_H <freetype/internal/autohint.h> + + +/* END */ diff --git a/include/freetype/internal/psaux.h b/include/freetype/internal/psaux.h new file mode 100644 index 0000000..a96e0df --- /dev/null +++ b/include/freetype/internal/psaux.h @@ -0,0 +1,873 @@ +/***************************************************************************/ +/* */ +/* psaux.h */ +/* */ +/* Auxiliary functions and data structures related to PostScript fonts */ +/* (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSAUX_H__ +#define __PSAUX_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_TYPE1_TYPES_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1_TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + typedef struct PS_TableRec_* PS_Table; + typedef const struct PS_Table_FuncsRec_* PS_Table_Funcs; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_Table_FuncsRec */ + /* */ + /* <Description> */ + /* A set of function pointers to manage PS_Table objects. */ + /* */ + /* <Fields> */ + /* table_init :: Used to initialize a table. */ + /* */ + /* table_done :: Finalizes resp. destroy a given table. */ + /* */ + /* table_add :: Adds a new object to a table. */ + /* */ + /* table_release :: Releases table data, then finalizes it. */ + /* */ + typedef struct PS_Table_FuncsRec_ + { + FT_Error + (*init)( PS_Table table, + FT_Int count, + FT_Memory memory ); + + void + (*done)( PS_Table table ); + + FT_Error + (*add)( PS_Table table, + FT_Int idx, + void* object, + FT_PtrDist length ); + + void + (*release)( PS_Table table ); + + } PS_Table_FuncsRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_TableRec */ + /* */ + /* <Description> */ + /* A PS_Table is a simple object used to store an array of objects in */ + /* a single memory block. */ + /* */ + /* <Fields> */ + /* block :: The address in memory of the growheap's block. This */ + /* can change between two object adds, due to */ + /* reallocation. */ + /* */ + /* cursor :: The current top of the grow heap within its block. */ + /* */ + /* capacity :: The current size of the heap block. Increments by */ + /* 1kByte chunks. */ + /* */ + /* max_elems :: The maximum number of elements in table. */ + /* */ + /* num_elems :: The current number of elements in table. */ + /* */ + /* elements :: A table of element addresses within the block. */ + /* */ + /* lengths :: A table of element sizes within the block. */ + /* */ + /* memory :: The object used for memory operations */ + /* (alloc/realloc). */ + /* */ + /* funcs :: A table of method pointers for this object. */ + /* */ + typedef struct PS_TableRec_ + { + FT_Byte* block; /* current memory block */ + FT_Offset cursor; /* current cursor in memory block */ + FT_Offset capacity; /* current size of memory block */ + FT_Long init; + + FT_Int max_elems; + FT_Int num_elems; + FT_Byte** elements; /* addresses of table elements */ + FT_PtrDist* lengths; /* lengths of table elements */ + + FT_Memory memory; + PS_Table_FuncsRec funcs; + + } PS_TableRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 FIELDS & TOKENS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct PS_ParserRec_* PS_Parser; + + typedef struct T1_TokenRec_* T1_Token; + + typedef struct T1_FieldRec_* T1_Field; + + + /* simple enumeration type used to identify token types */ + typedef enum T1_TokenType_ + { + T1_TOKEN_TYPE_NONE = 0, + T1_TOKEN_TYPE_ANY, + T1_TOKEN_TYPE_STRING, + T1_TOKEN_TYPE_ARRAY, + T1_TOKEN_TYPE_KEY, /* aka `name' */ + + /* do not remove */ + T1_TOKEN_TYPE_MAX + + } T1_TokenType; + + + /* a simple structure used to identify tokens */ + typedef struct T1_TokenRec_ + { + FT_Byte* start; /* first character of token in input stream */ + FT_Byte* limit; /* first character after the token */ + T1_TokenType type; /* type of token */ + + } T1_TokenRec; + + + /* enumeration type used to identify object fields */ + typedef enum T1_FieldType_ + { + T1_FIELD_TYPE_NONE = 0, + T1_FIELD_TYPE_BOOL, + T1_FIELD_TYPE_INTEGER, + T1_FIELD_TYPE_FIXED, + T1_FIELD_TYPE_FIXED_1000, + T1_FIELD_TYPE_STRING, + T1_FIELD_TYPE_KEY, + T1_FIELD_TYPE_BBOX, + T1_FIELD_TYPE_INTEGER_ARRAY, + T1_FIELD_TYPE_FIXED_ARRAY, + T1_FIELD_TYPE_CALLBACK, + + /* do not remove */ + T1_FIELD_TYPE_MAX + + } T1_FieldType; + + + typedef enum T1_FieldLocation_ + { + T1_FIELD_LOCATION_CID_INFO, + T1_FIELD_LOCATION_FONT_DICT, + T1_FIELD_LOCATION_FONT_EXTRA, + T1_FIELD_LOCATION_FONT_INFO, + T1_FIELD_LOCATION_PRIVATE, + T1_FIELD_LOCATION_BBOX, + T1_FIELD_LOCATION_LOADER, + T1_FIELD_LOCATION_FACE, + T1_FIELD_LOCATION_BLEND, + + /* do not remove */ + T1_FIELD_LOCATION_MAX + + } T1_FieldLocation; + + + typedef void + (*T1_Field_ParseFunc)( FT_Face face, + FT_Pointer parser ); + + + /* structure type used to model object fields */ + typedef struct T1_FieldRec_ + { + const char* ident; /* field identifier */ + T1_FieldLocation location; + T1_FieldType type; /* type of field */ + T1_Field_ParseFunc reader; + FT_UInt offset; /* offset of field in object */ + FT_Byte size; /* size of field in bytes */ + FT_UInt array_max; /* maximal number of elements for */ + /* array */ + FT_UInt count_offset; /* offset of element count for */ + /* arrays; must not be zero if in */ + /* use -- in other words, a */ + /* `num_FOO' element must not */ + /* start the used structure if we */ + /* parse a `FOO' array */ + FT_UInt dict; /* where we expect it */ + } T1_FieldRec; + +#define T1_FIELD_DICT_FONTDICT ( 1 << 0 ) /* also FontInfo and FDArray */ +#define T1_FIELD_DICT_PRIVATE ( 1 << 1 ) + + + +#define T1_NEW_SIMPLE_FIELD( _ident, _type, _fname, _dict ) \ + { \ + _ident, T1CODE, _type, \ + 0, \ + FT_FIELD_OFFSET( _fname ), \ + FT_FIELD_SIZE( _fname ), \ + 0, 0, \ + _dict \ + }, + +#define T1_NEW_CALLBACK_FIELD( _ident, _reader, _dict ) \ + { \ + _ident, T1CODE, T1_FIELD_TYPE_CALLBACK, \ + (T1_Field_ParseFunc)_reader, \ + 0, 0, \ + 0, 0, \ + _dict \ + }, + +#define T1_NEW_TABLE_FIELD( _ident, _type, _fname, _max, _dict ) \ + { \ + _ident, T1CODE, _type, \ + 0, \ + FT_FIELD_OFFSET( _fname ), \ + FT_FIELD_SIZE_DELTA( _fname ), \ + _max, \ + FT_FIELD_OFFSET( num_ ## _fname ), \ + _dict \ + }, + +#define T1_NEW_TABLE_FIELD2( _ident, _type, _fname, _max, _dict ) \ + { \ + _ident, T1CODE, _type, \ + 0, \ + FT_FIELD_OFFSET( _fname ), \ + FT_FIELD_SIZE_DELTA( _fname ), \ + _max, 0, \ + _dict \ + }, + + +#define T1_FIELD_BOOL( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BOOL, _fname, _dict ) + +#define T1_FIELD_NUM( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER, _fname, _dict ) + +#define T1_FIELD_FIXED( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED, _fname, _dict ) + +#define T1_FIELD_FIXED_1000( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_1000, _fname, \ + _dict ) + +#define T1_FIELD_STRING( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_STRING, _fname, _dict ) + +#define T1_FIELD_KEY( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_KEY, _fname, _dict ) + +#define T1_FIELD_BBOX( _ident, _fname, _dict ) \ + T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BBOX, _fname, _dict ) + + +#define T1_FIELD_NUM_TABLE( _ident, _fname, _fmax, _dict ) \ + T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \ + _fname, _fmax, _dict ) + +#define T1_FIELD_FIXED_TABLE( _ident, _fname, _fmax, _dict ) \ + T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \ + _fname, _fmax, _dict ) + +#define T1_FIELD_NUM_TABLE2( _ident, _fname, _fmax, _dict ) \ + T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \ + _fname, _fmax, _dict ) + +#define T1_FIELD_FIXED_TABLE2( _ident, _fname, _fmax, _dict ) \ + T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \ + _fname, _fmax, _dict ) + +#define T1_FIELD_CALLBACK( _ident, _name, _dict ) \ + T1_NEW_CALLBACK_FIELD( _ident, _name, _dict ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 PARSER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef const struct PS_Parser_FuncsRec_* PS_Parser_Funcs; + + typedef struct PS_Parser_FuncsRec_ + { + void + (*init)( PS_Parser parser, + FT_Byte* base, + FT_Byte* limit, + FT_Memory memory ); + + void + (*done)( PS_Parser parser ); + + void + (*skip_spaces)( PS_Parser parser ); + void + (*skip_PS_token)( PS_Parser parser ); + + FT_Long + (*to_int)( PS_Parser parser ); + FT_Fixed + (*to_fixed)( PS_Parser parser, + FT_Int power_ten ); + + FT_Error + (*to_bytes)( PS_Parser parser, + FT_Byte* bytes, + FT_Offset max_bytes, + FT_Long* pnum_bytes, + FT_Bool delimiters ); + + FT_Int + (*to_coord_array)( PS_Parser parser, + FT_Int max_coords, + FT_Short* coords ); + FT_Int + (*to_fixed_array)( PS_Parser parser, + FT_Int max_values, + FT_Fixed* values, + FT_Int power_ten ); + + void + (*to_token)( PS_Parser parser, + T1_Token token ); + void + (*to_token_array)( PS_Parser parser, + T1_Token tokens, + FT_UInt max_tokens, + FT_Int* pnum_tokens ); + + FT_Error + (*load_field)( PS_Parser parser, + const T1_Field field, + void** objects, + FT_UInt max_objects, + FT_ULong* pflags ); + + FT_Error + (*load_field_table)( PS_Parser parser, + const T1_Field field, + void** objects, + FT_UInt max_objects, + FT_ULong* pflags ); + + } PS_Parser_FuncsRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_ParserRec */ + /* */ + /* <Description> */ + /* A PS_Parser is an object used to parse a Type 1 font very quickly. */ + /* */ + /* <Fields> */ + /* cursor :: The current position in the text. */ + /* */ + /* base :: Start of the processed text. */ + /* */ + /* limit :: End of the processed text. */ + /* */ + /* error :: The last error returned. */ + /* */ + /* memory :: The object used for memory operations (alloc/realloc). */ + /* */ + /* funcs :: A table of functions for the parser. */ + /* */ + typedef struct PS_ParserRec_ + { + FT_Byte* cursor; + FT_Byte* base; + FT_Byte* limit; + FT_Error error; + FT_Memory memory; + + PS_Parser_FuncsRec funcs; + + } PS_ParserRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 BUILDER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + typedef struct T1_BuilderRec_* T1_Builder; + + + typedef FT_Error + (*T1_Builder_Check_Points_Func)( T1_Builder builder, + FT_Int count ); + + typedef void + (*T1_Builder_Add_Point_Func)( T1_Builder builder, + FT_Pos x, + FT_Pos y, + FT_Byte flag ); + + typedef FT_Error + (*T1_Builder_Add_Point1_Func)( T1_Builder builder, + FT_Pos x, + FT_Pos y ); + + typedef FT_Error + (*T1_Builder_Add_Contour_Func)( T1_Builder builder ); + + typedef FT_Error + (*T1_Builder_Start_Point_Func)( T1_Builder builder, + FT_Pos x, + FT_Pos y ); + + typedef void + (*T1_Builder_Close_Contour_Func)( T1_Builder builder ); + + + typedef const struct T1_Builder_FuncsRec_* T1_Builder_Funcs; + + typedef struct T1_Builder_FuncsRec_ + { + void + (*init)( T1_Builder builder, + FT_Face face, + FT_Size size, + FT_GlyphSlot slot, + FT_Bool hinting ); + + void + (*done)( T1_Builder builder ); + + T1_Builder_Check_Points_Func check_points; + T1_Builder_Add_Point_Func add_point; + T1_Builder_Add_Point1_Func add_point1; + T1_Builder_Add_Contour_Func add_contour; + T1_Builder_Start_Point_Func start_point; + T1_Builder_Close_Contour_Func close_contour; + + } T1_Builder_FuncsRec; + + + /* an enumeration type to handle charstring parsing states */ + typedef enum T1_ParseState_ + { + T1_Parse_Start, + T1_Parse_Have_Width, + T1_Parse_Have_Moveto, + T1_Parse_Have_Path + + } T1_ParseState; + + + /*************************************************************************/ + /* */ + /* <Structure> */ + /* T1_BuilderRec */ + /* */ + /* <Description> */ + /* A structure used during glyph loading to store its outline. */ + /* */ + /* <Fields> */ + /* memory :: The current memory object. */ + /* */ + /* face :: The current face object. */ + /* */ + /* glyph :: The current glyph slot. */ + /* */ + /* loader :: XXX */ + /* */ + /* base :: The base glyph outline. */ + /* */ + /* current :: The current glyph outline. */ + /* */ + /* max_points :: maximum points in builder outline */ + /* */ + /* max_contours :: Maximal number of contours in builder outline. */ + /* */ + /* pos_x :: The horizontal translation (if composite glyph). */ + /* */ + /* pos_y :: The vertical translation (if composite glyph). */ + /* */ + /* left_bearing :: The left side bearing point. */ + /* */ + /* advance :: The horizontal advance vector. */ + /* */ + /* bbox :: Unused. */ + /* */ + /* parse_state :: An enumeration which controls the charstring */ + /* parsing state. */ + /* */ + /* load_points :: If this flag is not set, no points are loaded. */ + /* */ + /* no_recurse :: Set but not used. */ + /* */ + /* metrics_only :: A boolean indicating that we only want to compute */ + /* the metrics of a given glyph, not load all of its */ + /* points. */ + /* */ + /* funcs :: An array of function pointers for the builder. */ + /* */ + typedef struct T1_BuilderRec_ + { + FT_Memory memory; + FT_Face face; + FT_GlyphSlot glyph; + FT_GlyphLoader loader; + FT_Outline* base; + FT_Outline* current; + + FT_Pos pos_x; + FT_Pos pos_y; + + FT_Vector left_bearing; + FT_Vector advance; + + FT_BBox bbox; /* bounding box */ + T1_ParseState parse_state; + FT_Bool load_points; + FT_Bool no_recurse; + + FT_Bool metrics_only; + + void* hints_funcs; /* hinter-specific */ + void* hints_globals; /* hinter-specific */ + + T1_Builder_FuncsRec funcs; + + } T1_BuilderRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 DECODER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#if 0 + + /*************************************************************************/ + /* */ + /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ + /* calls during glyph loading. */ + /* */ +#define T1_MAX_SUBRS_CALLS 8 + + + /*************************************************************************/ + /* */ + /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ + /* minimum of 16 is required. */ + /* */ +#define T1_MAX_CHARSTRINGS_OPERANDS 32 + +#endif /* 0 */ + + + typedef struct T1_Decoder_ZoneRec_ + { + FT_Byte* cursor; + FT_Byte* base; + FT_Byte* limit; + + } T1_Decoder_ZoneRec, *T1_Decoder_Zone; + + + typedef struct T1_DecoderRec_* T1_Decoder; + typedef const struct T1_Decoder_FuncsRec_* T1_Decoder_Funcs; + + + typedef FT_Error + (*T1_Decoder_Callback)( T1_Decoder decoder, + FT_UInt glyph_index ); + + + typedef struct T1_Decoder_FuncsRec_ + { + FT_Error + (*init)( T1_Decoder decoder, + FT_Face face, + FT_Size size, + FT_GlyphSlot slot, + FT_Byte** glyph_names, + PS_Blend blend, + FT_Bool hinting, + FT_Render_Mode hint_mode, + T1_Decoder_Callback callback ); + + void + (*done)( T1_Decoder decoder ); + + FT_Error + (*parse_charstrings)( T1_Decoder decoder, + FT_Byte* base, + FT_UInt len ); + + } T1_Decoder_FuncsRec; + + + typedef struct T1_DecoderRec_ + { + T1_BuilderRec builder; + + FT_Long stack[T1_MAX_CHARSTRINGS_OPERANDS]; + FT_Long* top; + + T1_Decoder_ZoneRec zones[T1_MAX_SUBRS_CALLS + 1]; + T1_Decoder_Zone zone; + + FT_Service_PsCMaps psnames; /* for seac */ + FT_UInt num_glyphs; + FT_Byte** glyph_names; + + FT_Int lenIV; /* internal for sub routine calls */ + FT_UInt num_subrs; + FT_Byte** subrs; + FT_PtrDist* subrs_len; /* array of subrs length (optional) */ + + FT_Matrix font_matrix; + FT_Vector font_offset; + + FT_Int flex_state; + FT_Int num_flex_vectors; + FT_Vector flex_vectors[7]; + + PS_Blend blend; /* for multiple master support */ + + FT_Render_Mode hint_mode; + + T1_Decoder_Callback parse_callback; + T1_Decoder_FuncsRec funcs; + + FT_Long* buildchar; + FT_UInt len_buildchar; + + FT_Bool seac; + + } T1_DecoderRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** AFM PARSER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct AFM_ParserRec_* AFM_Parser; + + typedef struct AFM_Parser_FuncsRec_ + { + FT_Error + (*init)( AFM_Parser parser, + FT_Memory memory, + FT_Byte* base, + FT_Byte* limit ); + + void + (*done)( AFM_Parser parser ); + + FT_Error + (*parse)( AFM_Parser parser ); + + } AFM_Parser_FuncsRec; + + + typedef struct AFM_StreamRec_* AFM_Stream; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* AFM_ParserRec */ + /* */ + /* <Description> */ + /* An AFM_Parser is a parser for the AFM files. */ + /* */ + /* <Fields> */ + /* memory :: The object used for memory operations (alloc and */ + /* realloc). */ + /* */ + /* stream :: This is an opaque object. */ + /* */ + /* FontInfo :: The result will be stored here. */ + /* */ + /* get_index :: A user provided function to get a glyph index by its */ + /* name. */ + /* */ + typedef struct AFM_ParserRec_ + { + FT_Memory memory; + AFM_Stream stream; + + AFM_FontInfo FontInfo; + + FT_Int + (*get_index)( const char* name, + FT_Offset len, + void* user_data ); + + void* user_data; + + } AFM_ParserRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 CHARMAPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef const struct T1_CMap_ClassesRec_* T1_CMap_Classes; + + typedef struct T1_CMap_ClassesRec_ + { + FT_CMap_Class standard; + FT_CMap_Class expert; + FT_CMap_Class custom; + FT_CMap_Class unicode; + + } T1_CMap_ClassesRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PSAux Module Interface *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct PSAux_ServiceRec_ + { + /* don't use `PS_Table_Funcs' and friends to avoid compiler warnings */ + const PS_Table_FuncsRec* ps_table_funcs; + const PS_Parser_FuncsRec* ps_parser_funcs; + const T1_Builder_FuncsRec* t1_builder_funcs; + const T1_Decoder_FuncsRec* t1_decoder_funcs; + + void + (*t1_decrypt)( FT_Byte* buffer, + FT_Offset length, + FT_UShort seed ); + + T1_CMap_Classes t1_cmap_classes; + + /* fields after this comment line were added after version 2.1.10 */ + const AFM_Parser_FuncsRec* afm_parser_funcs; + + } PSAux_ServiceRec, *PSAux_Service; + + /* backwards-compatible type definition */ + typedef PSAux_ServiceRec PSAux_Interface; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Some convenience functions *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define IS_PS_NEWLINE( ch ) \ + ( (ch) == '\r' || \ + (ch) == '\n' ) + +#define IS_PS_SPACE( ch ) \ + ( (ch) == ' ' || \ + IS_PS_NEWLINE( ch ) || \ + (ch) == '\t' || \ + (ch) == '\f' || \ + (ch) == '\0' ) + +#define IS_PS_SPECIAL( ch ) \ + ( (ch) == '/' || \ + (ch) == '(' || (ch) == ')' || \ + (ch) == '<' || (ch) == '>' || \ + (ch) == '[' || (ch) == ']' || \ + (ch) == '{' || (ch) == '}' || \ + (ch) == '%' ) + +#define IS_PS_DELIM( ch ) \ + ( IS_PS_SPACE( ch ) || \ + IS_PS_SPECIAL( ch ) ) + +#define IS_PS_DIGIT( ch ) \ + ( (ch) >= '0' && (ch) <= '9' ) + +#define IS_PS_XDIGIT( ch ) \ + ( IS_PS_DIGIT( ch ) || \ + ( (ch) >= 'A' && (ch) <= 'F' ) || \ + ( (ch) >= 'a' && (ch) <= 'f' ) ) + +#define IS_PS_BASE85( ch ) \ + ( (ch) >= '!' && (ch) <= 'u' ) + +#define IS_PS_TOKEN( cur, limit, token ) \ + ( (char)(cur)[0] == (token)[0] && \ + ( (cur) + sizeof ( (token) ) == (limit) || \ + ( (cur) + sizeof( (token) ) < (limit) && \ + IS_PS_DELIM( (cur)[sizeof ( (token) ) - 1] ) ) ) && \ + ft_strncmp( (char*)(cur), (token), sizeof ( (token) ) - 1 ) == 0 ) + + +FT_END_HEADER + +#endif /* __PSAUX_H__ */ + + +/* END */ diff --git a/include/freetype/internal/pshints.h b/include/freetype/internal/pshints.h new file mode 100644 index 0000000..5b7b698 --- /dev/null +++ b/include/freetype/internal/pshints.h @@ -0,0 +1,712 @@ +/***************************************************************************/ +/* */ +/* pshints.h */ +/* */ +/* Interface to Postscript-specific (Type 1 and Type 2) hints */ +/* recorders (specification only). These are used to support native */ +/* T1/T2 hints in the `type1', `cid', and `cff' font drivers. */ +/* */ +/* Copyright 2001, 2002, 2003, 2005, 2006, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSHINTS_H__ +#define __PSHINTS_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_TYPE1_TABLES_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** INTERNAL REPRESENTATION OF GLOBALS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct PSH_GlobalsRec_* PSH_Globals; + + typedef FT_Error + (*PSH_Globals_NewFunc)( FT_Memory memory, + T1_Private* private_dict, + PSH_Globals* aglobals ); + + typedef FT_Error + (*PSH_Globals_SetScaleFunc)( PSH_Globals globals, + FT_Fixed x_scale, + FT_Fixed y_scale, + FT_Fixed x_delta, + FT_Fixed y_delta ); + + typedef void + (*PSH_Globals_DestroyFunc)( PSH_Globals globals ); + + + typedef struct PSH_Globals_FuncsRec_ + { + PSH_Globals_NewFunc create; + PSH_Globals_SetScaleFunc set_scale; + PSH_Globals_DestroyFunc destroy; + + } PSH_Globals_FuncsRec, *PSH_Globals_Funcs; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PUBLIC TYPE 1 HINTS RECORDER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /************************************************************************* + * + * @type: + * T1_Hints + * + * @description: + * This is a handle to an opaque structure used to record glyph hints + * from a Type 1 character glyph character string. + * + * The methods used to operate on this object are defined by the + * @T1_Hints_FuncsRec structure. Recording glyph hints is normally + * achieved through the following scheme: + * + * - Open a new hint recording session by calling the `open' method. + * This rewinds the recorder and prepare it for new input. + * + * - For each hint found in the glyph charstring, call the corresponding + * method (`stem', `stem3', or `reset'). Note that these functions do + * not return an error code. + * + * - Close the recording session by calling the `close' method. It + * returns an error code if the hints were invalid or something + * strange happened (e.g., memory shortage). + * + * The hints accumulated in the object can later be used by the + * PostScript hinter. + * + */ + typedef struct T1_HintsRec_* T1_Hints; + + + /************************************************************************* + * + * @type: + * T1_Hints_Funcs + * + * @description: + * A pointer to the @T1_Hints_FuncsRec structure that defines the API of + * a given @T1_Hints object. + * + */ + typedef const struct T1_Hints_FuncsRec_* T1_Hints_Funcs; + + + /************************************************************************* + * + * @functype: + * T1_Hints_OpenFunc + * + * @description: + * A method of the @T1_Hints class used to prepare it for a new Type 1 + * hints recording session. + * + * @input: + * hints :: + * A handle to the Type 1 hints recorder. + * + * @note: + * You should always call the @T1_Hints_CloseFunc method in order to + * close an opened recording session. + * + */ + typedef void + (*T1_Hints_OpenFunc)( T1_Hints hints ); + + + /************************************************************************* + * + * @functype: + * T1_Hints_SetStemFunc + * + * @description: + * A method of the @T1_Hints class used to record a new horizontal or + * vertical stem. This corresponds to the Type 1 `hstem' and `vstem' + * operators. + * + * @input: + * hints :: + * A handle to the Type 1 hints recorder. + * + * dimension :: + * 0 for horizontal stems (hstem), 1 for vertical ones (vstem). + * + * coords :: + * Array of 2 coordinates in 16.16 format, used as (position,length) + * stem descriptor. + * + * @note: + * Use vertical coordinates (y) for horizontal stems (dim=0). Use + * horizontal coordinates (x) for vertical stems (dim=1). + * + * `coords[0]' is the absolute stem position (lowest coordinate); + * `coords[1]' is the length. + * + * The length can be negative, in which case it must be either -20 or + * -21. It is interpreted as a `ghost' stem, according to the Type 1 + * specification. + * + * If the length is -21 (corresponding to a bottom ghost stem), then + * the real stem position is `coords[0]+coords[1]'. + * + */ + typedef void + (*T1_Hints_SetStemFunc)( T1_Hints hints, + FT_UInt dimension, + FT_Fixed* coords ); + + + /************************************************************************* + * + * @functype: + * T1_Hints_SetStem3Func + * + * @description: + * A method of the @T1_Hints class used to record three + * counter-controlled horizontal or vertical stems at once. + * + * @input: + * hints :: + * A handle to the Type 1 hints recorder. + * + * dimension :: + * 0 for horizontal stems, 1 for vertical ones. + * + * coords :: + * An array of 6 values in 16.16 format, holding 3 (position,length) + * pairs for the counter-controlled stems. + * + * @note: + * Use vertical coordinates (y) for horizontal stems (dim=0). Use + * horizontal coordinates (x) for vertical stems (dim=1). + * + * The lengths cannot be negative (ghost stems are never + * counter-controlled). + * + */ + typedef void + (*T1_Hints_SetStem3Func)( T1_Hints hints, + FT_UInt dimension, + FT_Fixed* coords ); + + + /************************************************************************* + * + * @functype: + * T1_Hints_ResetFunc + * + * @description: + * A method of the @T1_Hints class used to reset the stems hints in a + * recording session. + * + * @input: + * hints :: + * A handle to the Type 1 hints recorder. + * + * end_point :: + * The index of the last point in the input glyph in which the + * previously defined hints apply. + * + */ + typedef void + (*T1_Hints_ResetFunc)( T1_Hints hints, + FT_UInt end_point ); + + + /************************************************************************* + * + * @functype: + * T1_Hints_CloseFunc + * + * @description: + * A method of the @T1_Hints class used to close a hint recording + * session. + * + * @input: + * hints :: + * A handle to the Type 1 hints recorder. + * + * end_point :: + * The index of the last point in the input glyph. + * + * @return: + * FreeType error code. 0 means success. + * + * @note: + * The error code is set to indicate that an error occurred during the + * recording session. + * + */ + typedef FT_Error + (*T1_Hints_CloseFunc)( T1_Hints hints, + FT_UInt end_point ); + + + /************************************************************************* + * + * @functype: + * T1_Hints_ApplyFunc + * + * @description: + * A method of the @T1_Hints class used to apply hints to the + * corresponding glyph outline. Must be called once all hints have been + * recorded. + * + * @input: + * hints :: + * A handle to the Type 1 hints recorder. + * + * outline :: + * A pointer to the target outline descriptor. + * + * globals :: + * The hinter globals for this font. + * + * hint_mode :: + * Hinting information. + * + * @return: + * FreeType error code. 0 means success. + * + * @note: + * On input, all points within the outline are in font coordinates. On + * output, they are in 1/64th of pixels. + * + * The scaling transformation is taken from the `globals' object which + * must correspond to the same font as the glyph. + * + */ + typedef FT_Error + (*T1_Hints_ApplyFunc)( T1_Hints hints, + FT_Outline* outline, + PSH_Globals globals, + FT_Render_Mode hint_mode ); + + + /************************************************************************* + * + * @struct: + * T1_Hints_FuncsRec + * + * @description: + * The structure used to provide the API to @T1_Hints objects. + * + * @fields: + * hints :: + * A handle to the T1 Hints recorder. + * + * open :: + * The function to open a recording session. + * + * close :: + * The function to close a recording session. + * + * stem :: + * The function to set a simple stem. + * + * stem3 :: + * The function to set counter-controlled stems. + * + * reset :: + * The function to reset stem hints. + * + * apply :: + * The function to apply the hints to the corresponding glyph outline. + * + */ + typedef struct T1_Hints_FuncsRec_ + { + T1_Hints hints; + T1_Hints_OpenFunc open; + T1_Hints_CloseFunc close; + T1_Hints_SetStemFunc stem; + T1_Hints_SetStem3Func stem3; + T1_Hints_ResetFunc reset; + T1_Hints_ApplyFunc apply; + + } T1_Hints_FuncsRec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PUBLIC TYPE 2 HINTS RECORDER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /************************************************************************* + * + * @type: + * T2_Hints + * + * @description: + * This is a handle to an opaque structure used to record glyph hints + * from a Type 2 character glyph character string. + * + * The methods used to operate on this object are defined by the + * @T2_Hints_FuncsRec structure. Recording glyph hints is normally + * achieved through the following scheme: + * + * - Open a new hint recording session by calling the `open' method. + * This rewinds the recorder and prepare it for new input. + * + * - For each hint found in the glyph charstring, call the corresponding + * method (`stems', `hintmask', `counters'). Note that these + * functions do not return an error code. + * + * - Close the recording session by calling the `close' method. It + * returns an error code if the hints were invalid or something + * strange happened (e.g., memory shortage). + * + * The hints accumulated in the object can later be used by the + * Postscript hinter. + * + */ + typedef struct T2_HintsRec_* T2_Hints; + + + /************************************************************************* + * + * @type: + * T2_Hints_Funcs + * + * @description: + * A pointer to the @T2_Hints_FuncsRec structure that defines the API of + * a given @T2_Hints object. + * + */ + typedef const struct T2_Hints_FuncsRec_* T2_Hints_Funcs; + + + /************************************************************************* + * + * @functype: + * T2_Hints_OpenFunc + * + * @description: + * A method of the @T2_Hints class used to prepare it for a new Type 2 + * hints recording session. + * + * @input: + * hints :: + * A handle to the Type 2 hints recorder. + * + * @note: + * You should always call the @T2_Hints_CloseFunc method in order to + * close an opened recording session. + * + */ + typedef void + (*T2_Hints_OpenFunc)( T2_Hints hints ); + + + /************************************************************************* + * + * @functype: + * T2_Hints_StemsFunc + * + * @description: + * A method of the @T2_Hints class used to set the table of stems in + * either the vertical or horizontal dimension. Equivalent to the + * `hstem', `vstem', `hstemhm', and `vstemhm' Type 2 operators. + * + * @input: + * hints :: + * A handle to the Type 2 hints recorder. + * + * dimension :: + * 0 for horizontal stems (hstem), 1 for vertical ones (vstem). + * + * count :: + * The number of stems. + * + * coords :: + * An array of `count' (position,length) pairs in 16.16 format. + * + * @note: + * Use vertical coordinates (y) for horizontal stems (dim=0). Use + * horizontal coordinates (x) for vertical stems (dim=1). + * + * There are `2*count' elements in the `coords' array. Each even + * element is an absolute position in font units, each odd element is a + * length in font units. + * + * A length can be negative, in which case it must be either -20 or + * -21. It is interpreted as a `ghost' stem, according to the Type 1 + * specification. + * + */ + typedef void + (*T2_Hints_StemsFunc)( T2_Hints hints, + FT_UInt dimension, + FT_UInt count, + FT_Fixed* coordinates ); + + + /************************************************************************* + * + * @functype: + * T2_Hints_MaskFunc + * + * @description: + * A method of the @T2_Hints class used to set a given hintmask (this + * corresponds to the `hintmask' Type 2 operator). + * + * @input: + * hints :: + * A handle to the Type 2 hints recorder. + * + * end_point :: + * The glyph index of the last point to which the previously defined + * or activated hints apply. + * + * bit_count :: + * The number of bits in the hint mask. + * + * bytes :: + * An array of bytes modelling the hint mask. + * + * @note: + * If the hintmask starts the charstring (before any glyph point + * definition), the value of `end_point' should be 0. + * + * `bit_count' is the number of meaningful bits in the `bytes' array; it + * must be equal to the total number of hints defined so far (i.e., + * horizontal+verticals). + * + * The `bytes' array can come directly from the Type 2 charstring and + * respects the same format. + * + */ + typedef void + (*T2_Hints_MaskFunc)( T2_Hints hints, + FT_UInt end_point, + FT_UInt bit_count, + const FT_Byte* bytes ); + + + /************************************************************************* + * + * @functype: + * T2_Hints_CounterFunc + * + * @description: + * A method of the @T2_Hints class used to set a given counter mask + * (this corresponds to the `hintmask' Type 2 operator). + * + * @input: + * hints :: + * A handle to the Type 2 hints recorder. + * + * end_point :: + * A glyph index of the last point to which the previously defined or + * active hints apply. + * + * bit_count :: + * The number of bits in the hint mask. + * + * bytes :: + * An array of bytes modelling the hint mask. + * + * @note: + * If the hintmask starts the charstring (before any glyph point + * definition), the value of `end_point' should be 0. + * + * `bit_count' is the number of meaningful bits in the `bytes' array; it + * must be equal to the total number of hints defined so far (i.e., + * horizontal+verticals). + * + * The `bytes' array can come directly from the Type 2 charstring and + * respects the same format. + * + */ + typedef void + (*T2_Hints_CounterFunc)( T2_Hints hints, + FT_UInt bit_count, + const FT_Byte* bytes ); + + + /************************************************************************* + * + * @functype: + * T2_Hints_CloseFunc + * + * @description: + * A method of the @T2_Hints class used to close a hint recording + * session. + * + * @input: + * hints :: + * A handle to the Type 2 hints recorder. + * + * end_point :: + * The index of the last point in the input glyph. + * + * @return: + * FreeType error code. 0 means success. + * + * @note: + * The error code is set to indicate that an error occurred during the + * recording session. + * + */ + typedef FT_Error + (*T2_Hints_CloseFunc)( T2_Hints hints, + FT_UInt end_point ); + + + /************************************************************************* + * + * @functype: + * T2_Hints_ApplyFunc + * + * @description: + * A method of the @T2_Hints class used to apply hints to the + * corresponding glyph outline. Must be called after the `close' + * method. + * + * @input: + * hints :: + * A handle to the Type 2 hints recorder. + * + * outline :: + * A pointer to the target outline descriptor. + * + * globals :: + * The hinter globals for this font. + * + * hint_mode :: + * Hinting information. + * + * @return: + * FreeType error code. 0 means success. + * + * @note: + * On input, all points within the outline are in font coordinates. On + * output, they are in 1/64th of pixels. + * + * The scaling transformation is taken from the `globals' object which + * must correspond to the same font than the glyph. + * + */ + typedef FT_Error + (*T2_Hints_ApplyFunc)( T2_Hints hints, + FT_Outline* outline, + PSH_Globals globals, + FT_Render_Mode hint_mode ); + + + /************************************************************************* + * + * @struct: + * T2_Hints_FuncsRec + * + * @description: + * The structure used to provide the API to @T2_Hints objects. + * + * @fields: + * hints :: + * A handle to the T2 hints recorder object. + * + * open :: + * The function to open a recording session. + * + * close :: + * The function to close a recording session. + * + * stems :: + * The function to set the dimension's stems table. + * + * hintmask :: + * The function to set hint masks. + * + * counter :: + * The function to set counter masks. + * + * apply :: + * The function to apply the hints on the corresponding glyph outline. + * + */ + typedef struct T2_Hints_FuncsRec_ + { + T2_Hints hints; + T2_Hints_OpenFunc open; + T2_Hints_CloseFunc close; + T2_Hints_StemsFunc stems; + T2_Hints_MaskFunc hintmask; + T2_Hints_CounterFunc counter; + T2_Hints_ApplyFunc apply; + + } T2_Hints_FuncsRec; + + + /* */ + + + typedef struct PSHinter_Interface_ + { + PSH_Globals_Funcs (*get_globals_funcs)( FT_Module module ); + T1_Hints_Funcs (*get_t1_funcs) ( FT_Module module ); + T2_Hints_Funcs (*get_t2_funcs) ( FT_Module module ); + + } PSHinter_Interface; + + typedef PSHinter_Interface* PSHinter_Service; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_PSHINTER_INTERFACE(class_, get_globals_funcs_, \ + get_t1_funcs_, get_t2_funcs_) \ + static const PSHinter_Interface class_ = \ + { \ + get_globals_funcs_, get_t1_funcs_, get_t2_funcs_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_PSHINTER_INTERFACE(class_, get_globals_funcs_, \ + get_t1_funcs_, get_t2_funcs_) \ + void \ + FT_Init_Class_##class_( FT_Library library, \ + PSHinter_Interface* clazz) \ + { \ + FT_UNUSED(library); \ + clazz->get_globals_funcs = get_globals_funcs_; \ + clazz->get_t1_funcs = get_t1_funcs_; \ + clazz->get_t2_funcs = get_t2_funcs_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + +FT_END_HEADER + +#endif /* __PSHINTS_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svbdf.h b/include/freetype/internal/services/svbdf.h new file mode 100644 index 0000000..0974752 --- /dev/null +++ b/include/freetype/internal/services/svbdf.h @@ -0,0 +1,82 @@ +/***************************************************************************/ +/* */ +/* svbdf.h */ +/* */ +/* The FreeType BDF services (specification). */ +/* */ +/* Copyright 2003, 2009, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVBDF_H__ +#define __SVBDF_H__ + +#include FT_BDF_H +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_BDF "bdf" + + typedef FT_Error + (*FT_BDF_GetCharsetIdFunc)( FT_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ); + + typedef FT_Error + (*FT_BDF_GetPropertyFunc)( FT_Face face, + const char* prop_name, + BDF_PropertyRec *aproperty ); + + + FT_DEFINE_SERVICE( BDF ) + { + FT_BDF_GetCharsetIdFunc get_charset_id; + FT_BDF_GetPropertyFunc get_property; + }; + + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_BDFRec( class_, \ + get_charset_id_, \ + get_property_ ) \ + static const FT_Service_BDFRec class_ = \ + { \ + get_charset_id_, get_property_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_BDFRec( class_, \ + get_charset_id_, \ + get_property_ ) \ + void \ + FT_Init_Class_ ## class_( FT_Service_BDFRec* clazz ) \ + { \ + clazz->get_charset_id = get_charset_id_; \ + clazz->get_property = get_property_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVBDF_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svcid.h b/include/freetype/internal/services/svcid.h new file mode 100644 index 0000000..6be3f93 --- /dev/null +++ b/include/freetype/internal/services/svcid.h @@ -0,0 +1,89 @@ +/***************************************************************************/ +/* */ +/* svcid.h */ +/* */ +/* The FreeType CID font services (specification). */ +/* */ +/* Copyright 2007, 2009, 2012 by Derek Clegg, Michael Toftdal. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVCID_H__ +#define __SVCID_H__ + +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_CID "CID" + + typedef FT_Error + (*FT_CID_GetRegistryOrderingSupplementFunc)( FT_Face face, + const char* *registry, + const char* *ordering, + FT_Int *supplement ); + typedef FT_Error + (*FT_CID_GetIsInternallyCIDKeyedFunc)( FT_Face face, + FT_Bool *is_cid ); + typedef FT_Error + (*FT_CID_GetCIDFromGlyphIndexFunc)( FT_Face face, + FT_UInt glyph_index, + FT_UInt *cid ); + + FT_DEFINE_SERVICE( CID ) + { + FT_CID_GetRegistryOrderingSupplementFunc get_ros; + FT_CID_GetIsInternallyCIDKeyedFunc get_is_cid; + FT_CID_GetCIDFromGlyphIndexFunc get_cid_from_glyph_index; + }; + + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_CIDREC( class_, \ + get_ros_, \ + get_is_cid_, \ + get_cid_from_glyph_index_ ) \ + static const FT_Service_CIDRec class_ = \ + { \ + get_ros_, get_is_cid_, get_cid_from_glyph_index_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_CIDREC( class_, \ + get_ros_, \ + get_is_cid_, \ + get_cid_from_glyph_index_ ) \ + void \ + FT_Init_Class_ ## class_( FT_Library library, \ + FT_Service_CIDRec* clazz ) \ + { \ + FT_UNUSED( library ); \ + \ + clazz->get_ros = get_ros_; \ + clazz->get_is_cid = get_is_cid_; \ + clazz->get_cid_from_glyph_index = get_cid_from_glyph_index_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVCID_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svgldict.h b/include/freetype/internal/services/svgldict.h new file mode 100644 index 0000000..1d12534 --- /dev/null +++ b/include/freetype/internal/services/svgldict.h @@ -0,0 +1,88 @@ +/***************************************************************************/ +/* */ +/* svgldict.h */ +/* */ +/* The FreeType glyph dictionary services (specification). */ +/* */ +/* Copyright 2003, 2009, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVGLDICT_H__ +#define __SVGLDICT_H__ + +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + + /* + * A service used to retrieve glyph names, as well as to find the + * index of a given glyph name in a font. + * + */ + +#define FT_SERVICE_ID_GLYPH_DICT "glyph-dict" + + + typedef FT_Error + (*FT_GlyphDict_GetNameFunc)( FT_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ); + + typedef FT_UInt + (*FT_GlyphDict_NameIndexFunc)( FT_Face face, + FT_String* glyph_name ); + + + FT_DEFINE_SERVICE( GlyphDict ) + { + FT_GlyphDict_GetNameFunc get_name; + FT_GlyphDict_NameIndexFunc name_index; /* optional */ + }; + + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_GLYPHDICTREC( class_, \ + get_name_, \ + name_index_) \ + static const FT_Service_GlyphDictRec class_ = \ + { \ + get_name_, name_index_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_GLYPHDICTREC( class_, \ + get_name_, \ + name_index_) \ + void \ + FT_Init_Class_ ## class_( FT_Library library, \ + FT_Service_GlyphDictRec* clazz ) \ + { \ + FT_UNUSED( library ); \ + \ + clazz->get_name = get_name_; \ + clazz->name_index = name_index_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVGLDICT_H__ */ diff --git a/include/freetype/internal/services/svgxval.h b/include/freetype/internal/services/svgxval.h new file mode 100644 index 0000000..2cdab50 --- /dev/null +++ b/include/freetype/internal/services/svgxval.h @@ -0,0 +1,72 @@ +/***************************************************************************/ +/* */ +/* svgxval.h */ +/* */ +/* FreeType API for validating TrueTypeGX/AAT tables (specification). */ +/* */ +/* Copyright 2004, 2005 by */ +/* Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVGXVAL_H__ +#define __SVGXVAL_H__ + +#include FT_GX_VALIDATE_H +#include FT_INTERNAL_VALIDATE_H + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_GX_VALIDATE "truetypegx-validate" +#define FT_SERVICE_ID_CLASSICKERN_VALIDATE "classickern-validate" + + typedef FT_Error + (*gxv_validate_func)( FT_Face face, + FT_UInt gx_flags, + FT_Bytes tables[FT_VALIDATE_GX_LENGTH], + FT_UInt table_length ); + + + typedef FT_Error + (*ckern_validate_func)( FT_Face face, + FT_UInt ckern_flags, + FT_Bytes *ckern_table ); + + + FT_DEFINE_SERVICE( GXvalidate ) + { + gxv_validate_func validate; + }; + + FT_DEFINE_SERVICE( CKERNvalidate ) + { + ckern_validate_func validate; + }; + + /* */ + + +FT_END_HEADER + + +#endif /* __SVGXVAL_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svkern.h b/include/freetype/internal/services/svkern.h new file mode 100644 index 0000000..1488adf --- /dev/null +++ b/include/freetype/internal/services/svkern.h @@ -0,0 +1,51 @@ +/***************************************************************************/ +/* */ +/* svkern.h */ +/* */ +/* The FreeType Kerning service (specification). */ +/* */ +/* Copyright 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVKERN_H__ +#define __SVKERN_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_TRUETYPE_TABLES_H + + +FT_BEGIN_HEADER + +#define FT_SERVICE_ID_KERNING "kerning" + + + typedef FT_Error + (*FT_Kerning_TrackGetFunc)( FT_Face face, + FT_Fixed point_size, + FT_Int degree, + FT_Fixed* akerning ); + + FT_DEFINE_SERVICE( Kerning ) + { + FT_Kerning_TrackGetFunc get_track; + }; + + /* */ + + +FT_END_HEADER + + +#endif /* __SVKERN_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svmm.h b/include/freetype/internal/services/svmm.h new file mode 100644 index 0000000..b08a663 --- /dev/null +++ b/include/freetype/internal/services/svmm.h @@ -0,0 +1,113 @@ +/***************************************************************************/ +/* */ +/* svmm.h */ +/* */ +/* The FreeType Multiple Masters and GX var services (specification). */ +/* */ +/* Copyright 2003, 2004, 2009, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVMM_H__ +#define __SVMM_H__ + +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + + /* + * A service used to manage multiple-masters data in a given face. + * + * See the related APIs in `ftmm.h' (FT_MULTIPLE_MASTERS_H). + * + */ + +#define FT_SERVICE_ID_MULTI_MASTERS "multi-masters" + + + typedef FT_Error + (*FT_Get_MM_Func)( FT_Face face, + FT_Multi_Master* master ); + + typedef FT_Error + (*FT_Get_MM_Var_Func)( FT_Face face, + FT_MM_Var* *master ); + + typedef FT_Error + (*FT_Set_MM_Design_Func)( FT_Face face, + FT_UInt num_coords, + FT_Long* coords ); + + typedef FT_Error + (*FT_Set_Var_Design_Func)( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + typedef FT_Error + (*FT_Set_MM_Blend_Func)( FT_Face face, + FT_UInt num_coords, + FT_Long* coords ); + + + FT_DEFINE_SERVICE( MultiMasters ) + { + FT_Get_MM_Func get_mm; + FT_Set_MM_Design_Func set_mm_design; + FT_Set_MM_Blend_Func set_mm_blend; + FT_Get_MM_Var_Func get_mm_var; + FT_Set_Var_Design_Func set_var_design; + }; + + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_MULTIMASTERSREC( class_, \ + get_mm_, \ + set_mm_design_, \ + set_mm_blend_, \ + get_mm_var_, \ + set_var_design_ ) \ + static const FT_Service_MultiMastersRec class_ = \ + { \ + get_mm_, set_mm_design_, set_mm_blend_, get_mm_var_, set_var_design_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_MULTIMASTERSREC( class_, \ + get_mm_, \ + set_mm_design_, \ + set_mm_blend_, \ + get_mm_var_, \ + set_var_design_ ) \ + void \ + FT_Init_Class_ ## class_( FT_Service_MultiMastersRec* clazz ) \ + { \ + clazz->get_mm = get_mm_; \ + clazz->set_mm_design = set_mm_design_; \ + clazz->set_mm_blend = set_mm_blend_; \ + clazz->get_mm_var = get_mm_var_; \ + clazz->set_var_design = set_var_design_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + +#endif /* __SVMM_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svotval.h b/include/freetype/internal/services/svotval.h new file mode 100644 index 0000000..970bbd5 --- /dev/null +++ b/include/freetype/internal/services/svotval.h @@ -0,0 +1,55 @@ +/***************************************************************************/ +/* */ +/* svotval.h */ +/* */ +/* The FreeType OpenType validation service (specification). */ +/* */ +/* Copyright 2004, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVOTVAL_H__ +#define __SVOTVAL_H__ + +#include FT_OPENTYPE_VALIDATE_H +#include FT_INTERNAL_VALIDATE_H + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_OPENTYPE_VALIDATE "opentype-validate" + + + typedef FT_Error + (*otv_validate_func)( FT_Face volatile face, + FT_UInt ot_flags, + FT_Bytes *base, + FT_Bytes *gdef, + FT_Bytes *gpos, + FT_Bytes *gsub, + FT_Bytes *jstf ); + + + FT_DEFINE_SERVICE( OTvalidate ) + { + otv_validate_func validate; + }; + + /* */ + + +FT_END_HEADER + + +#endif /* __SVOTVAL_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svpfr.h b/include/freetype/internal/services/svpfr.h new file mode 100644 index 0000000..462786f --- /dev/null +++ b/include/freetype/internal/services/svpfr.h @@ -0,0 +1,66 @@ +/***************************************************************************/ +/* */ +/* svpfr.h */ +/* */ +/* Internal PFR service functions (specification). */ +/* */ +/* Copyright 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVPFR_H__ +#define __SVPFR_H__ + +#include FT_PFR_H +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_PFR_METRICS "pfr-metrics" + + + typedef FT_Error + (*FT_PFR_GetMetricsFunc)( FT_Face face, + FT_UInt *aoutline, + FT_UInt *ametrics, + FT_Fixed *ax_scale, + FT_Fixed *ay_scale ); + + typedef FT_Error + (*FT_PFR_GetKerningFunc)( FT_Face face, + FT_UInt left, + FT_UInt right, + FT_Vector *avector ); + + typedef FT_Error + (*FT_PFR_GetAdvanceFunc)( FT_Face face, + FT_UInt gindex, + FT_Pos *aadvance ); + + + FT_DEFINE_SERVICE( PfrMetrics ) + { + FT_PFR_GetMetricsFunc get_metrics; + FT_PFR_GetKerningFunc get_kerning; + FT_PFR_GetAdvanceFunc get_advance; + + }; + + /* */ + +FT_END_HEADER + +#endif /* __SVPFR_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svpostnm.h b/include/freetype/internal/services/svpostnm.h new file mode 100644 index 0000000..a76b4fe --- /dev/null +++ b/include/freetype/internal/services/svpostnm.h @@ -0,0 +1,81 @@ +/***************************************************************************/ +/* */ +/* svpostnm.h */ +/* */ +/* The FreeType PostScript name services (specification). */ +/* */ +/* Copyright 2003, 2007, 2009, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVPOSTNM_H__ +#define __SVPOSTNM_H__ + +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + /* + * A trivial service used to retrieve the PostScript name of a given + * font when available. The `get_name' field should never be NULL. + * + * The corresponding function can return NULL to indicate that the + * PostScript name is not available. + * + * The name is owned by the face and will be destroyed with it. + */ + +#define FT_SERVICE_ID_POSTSCRIPT_FONT_NAME "postscript-font-name" + + + typedef const char* + (*FT_PsName_GetFunc)( FT_Face face ); + + + FT_DEFINE_SERVICE( PsFontName ) + { + FT_PsName_GetFunc get_ps_font_name; + }; + + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_PSFONTNAMEREC( class_, get_ps_font_name_ ) \ + static const FT_Service_PsFontNameRec class_ = \ + { \ + get_ps_font_name_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_PSFONTNAMEREC( class_, get_ps_font_name_ ) \ + void \ + FT_Init_Class_ ## class_( FT_Library library, \ + FT_Service_PsFontNameRec* clazz ) \ + { \ + FT_UNUSED( library ); \ + \ + clazz->get_ps_font_name = get_ps_font_name_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVPOSTNM_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svpscmap.h b/include/freetype/internal/services/svpscmap.h new file mode 100644 index 0000000..030948e --- /dev/null +++ b/include/freetype/internal/services/svpscmap.h @@ -0,0 +1,177 @@ +/***************************************************************************/ +/* */ +/* svpscmap.h */ +/* */ +/* The FreeType PostScript charmap service (specification). */ +/* */ +/* Copyright 2003, 2006, 2009, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVPSCMAP_H__ +#define __SVPSCMAP_H__ + +#include FT_INTERNAL_OBJECTS_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_POSTSCRIPT_CMAPS "postscript-cmaps" + + + /* + * Adobe glyph name to unicode value. + */ + typedef FT_UInt32 + (*PS_Unicode_ValueFunc)( const char* glyph_name ); + + /* + * Macintosh name id to glyph name. NULL if invalid index. + */ + typedef const char* + (*PS_Macintosh_NameFunc)( FT_UInt name_index ); + + /* + * Adobe standard string ID to glyph name. NULL if invalid index. + */ + typedef const char* + (*PS_Adobe_Std_StringsFunc)( FT_UInt string_index ); + + + /* + * Simple unicode -> glyph index charmap built from font glyph names + * table. + */ + typedef struct PS_UniMap_ + { + FT_UInt32 unicode; /* bit 31 set: is glyph variant */ + FT_UInt glyph_index; + + } PS_UniMap; + + + typedef struct PS_UnicodesRec_* PS_Unicodes; + + typedef struct PS_UnicodesRec_ + { + FT_CMapRec cmap; + FT_UInt num_maps; + PS_UniMap* maps; + + } PS_UnicodesRec; + + + /* + * A function which returns a glyph name for a given index. Returns + * NULL if invalid index. + */ + typedef const char* + (*PS_GetGlyphNameFunc)( FT_Pointer data, + FT_UInt string_index ); + + /* + * A function used to release the glyph name returned by + * PS_GetGlyphNameFunc, when needed + */ + typedef void + (*PS_FreeGlyphNameFunc)( FT_Pointer data, + const char* name ); + + typedef FT_Error + (*PS_Unicodes_InitFunc)( FT_Memory memory, + PS_Unicodes unicodes, + FT_UInt num_glyphs, + PS_GetGlyphNameFunc get_glyph_name, + PS_FreeGlyphNameFunc free_glyph_name, + FT_Pointer glyph_data ); + + typedef FT_UInt + (*PS_Unicodes_CharIndexFunc)( PS_Unicodes unicodes, + FT_UInt32 unicode ); + + typedef FT_UInt32 + (*PS_Unicodes_CharNextFunc)( PS_Unicodes unicodes, + FT_UInt32 *unicode ); + + + FT_DEFINE_SERVICE( PsCMaps ) + { + PS_Unicode_ValueFunc unicode_value; + + PS_Unicodes_InitFunc unicodes_init; + PS_Unicodes_CharIndexFunc unicodes_char_index; + PS_Unicodes_CharNextFunc unicodes_char_next; + + PS_Macintosh_NameFunc macintosh_name; + PS_Adobe_Std_StringsFunc adobe_std_strings; + const unsigned short* adobe_std_encoding; + const unsigned short* adobe_expert_encoding; + }; + + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_PSCMAPSREC( class_, \ + unicode_value_, \ + unicodes_init_, \ + unicodes_char_index_, \ + unicodes_char_next_, \ + macintosh_name_, \ + adobe_std_strings_, \ + adobe_std_encoding_, \ + adobe_expert_encoding_ ) \ + static const FT_Service_PsCMapsRec class_ = \ + { \ + unicode_value_, unicodes_init_, \ + unicodes_char_index_, unicodes_char_next_, macintosh_name_, \ + adobe_std_strings_, adobe_std_encoding_, adobe_expert_encoding_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_PSCMAPSREC( class_, \ + unicode_value_, \ + unicodes_init_, \ + unicodes_char_index_, \ + unicodes_char_next_, \ + macintosh_name_, \ + adobe_std_strings_, \ + adobe_std_encoding_, \ + adobe_expert_encoding_ ) \ + void \ + FT_Init_Class_ ## class_( FT_Library library, \ + FT_Service_PsCMapsRec* clazz ) \ + { \ + FT_UNUSED( library ); \ + \ + clazz->unicode_value = unicode_value_; \ + clazz->unicodes_init = unicodes_init_; \ + clazz->unicodes_char_index = unicodes_char_index_; \ + clazz->unicodes_char_next = unicodes_char_next_; \ + clazz->macintosh_name = macintosh_name_; \ + clazz->adobe_std_strings = adobe_std_strings_; \ + clazz->adobe_std_encoding = adobe_std_encoding_; \ + clazz->adobe_expert_encoding = adobe_expert_encoding_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVPSCMAP_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svpsinfo.h b/include/freetype/internal/services/svpsinfo.h new file mode 100644 index 0000000..4bfb506 --- /dev/null +++ b/include/freetype/internal/services/svpsinfo.h @@ -0,0 +1,111 @@ +/***************************************************************************/ +/* */ +/* svpsinfo.h */ +/* */ +/* The FreeType PostScript info service (specification). */ +/* */ +/* Copyright 2003, 2004, 2009, 2011, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVPSINFO_H__ +#define __SVPSINFO_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_INTERNAL_TYPE1_TYPES_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_POSTSCRIPT_INFO "postscript-info" + + + typedef FT_Error + (*PS_GetFontInfoFunc)( FT_Face face, + PS_FontInfoRec* afont_info ); + + typedef FT_Error + (*PS_GetFontExtraFunc)( FT_Face face, + PS_FontExtraRec* afont_extra ); + + typedef FT_Int + (*PS_HasGlyphNamesFunc)( FT_Face face ); + + typedef FT_Error + (*PS_GetFontPrivateFunc)( FT_Face face, + PS_PrivateRec* afont_private ); + + typedef FT_Long + (*PS_GetFontValueFunc)( FT_Face face, + PS_Dict_Keys key, + FT_UInt idx, + void *value, + FT_Long value_len ); + + + FT_DEFINE_SERVICE( PsInfo ) + { + PS_GetFontInfoFunc ps_get_font_info; + PS_GetFontExtraFunc ps_get_font_extra; + PS_HasGlyphNamesFunc ps_has_glyph_names; + PS_GetFontPrivateFunc ps_get_font_private; + PS_GetFontValueFunc ps_get_font_value; + }; + + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_PSINFOREC( class_, \ + get_font_info_, \ + ps_get_font_extra_, \ + has_glyph_names_, \ + get_font_private_, \ + get_font_value_ ) \ + static const FT_Service_PsInfoRec class_ = \ + { \ + get_font_info_, ps_get_font_extra_, has_glyph_names_, \ + get_font_private_, get_font_value_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_PSINFOREC( class_, \ + get_font_info_, \ + ps_get_font_extra_, \ + has_glyph_names_, \ + get_font_private_, \ + get_font_value_ ) \ + void \ + FT_Init_Class_ ## class_( FT_Library library, \ + FT_Service_PsInfoRec* clazz ) \ + { \ + FT_UNUSED( library ); \ + \ + clazz->ps_get_font_info = get_font_info_; \ + clazz->ps_get_font_extra = ps_get_font_extra_; \ + clazz->ps_has_glyph_names = has_glyph_names_; \ + clazz->ps_get_font_private = get_font_private_; \ + clazz->ps_get_font_value = get_font_value_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVPSINFO_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svsfnt.h b/include/freetype/internal/services/svsfnt.h new file mode 100644 index 0000000..d3835aa --- /dev/null +++ b/include/freetype/internal/services/svsfnt.h @@ -0,0 +1,103 @@ +/***************************************************************************/ +/* */ +/* svsfnt.h */ +/* */ +/* The FreeType SFNT table loading service (specification). */ +/* */ +/* Copyright 2003, 2004, 2009, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVSFNT_H__ +#define __SVSFNT_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_TRUETYPE_TABLES_H + + +FT_BEGIN_HEADER + + + /* + * SFNT table loading service. + */ + +#define FT_SERVICE_ID_SFNT_TABLE "sfnt-table" + + + /* + * Used to implement FT_Load_Sfnt_Table(). + */ + typedef FT_Error + (*FT_SFNT_TableLoadFunc)( FT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte* buffer, + FT_ULong* length ); + + /* + * Used to implement FT_Get_Sfnt_Table(). + */ + typedef void* + (*FT_SFNT_TableGetFunc)( FT_Face face, + FT_Sfnt_Tag tag ); + + + /* + * Used to implement FT_Sfnt_Table_Info(). + */ + typedef FT_Error + (*FT_SFNT_TableInfoFunc)( FT_Face face, + FT_UInt idx, + FT_ULong *tag, + FT_ULong *offset, + FT_ULong *length ); + + + FT_DEFINE_SERVICE( SFNT_Table ) + { + FT_SFNT_TableLoadFunc load_table; + FT_SFNT_TableGetFunc get_table; + FT_SFNT_TableInfoFunc table_info; + }; + + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_SFNT_TABLEREC( class_, load_, get_, info_ ) \ + static const FT_Service_SFNT_TableRec class_ = \ + { \ + load_, get_, info_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_SFNT_TABLEREC( class_, load_, get_, info_ ) \ + void \ + FT_Init_Class_ ## class_( FT_Service_SFNT_TableRec* clazz ) \ + { \ + clazz->load_table = load_; \ + clazz->get_table = get_; \ + clazz->table_info = info_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + + +#endif /* __SVSFNT_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svttcmap.h b/include/freetype/internal/services/svttcmap.h new file mode 100644 index 0000000..83994aa --- /dev/null +++ b/include/freetype/internal/services/svttcmap.h @@ -0,0 +1,107 @@ +/***************************************************************************/ +/* */ +/* svttcmap.h */ +/* */ +/* The FreeType TrueType/sfnt cmap extra information service. */ +/* */ +/* Copyright 2003 by */ +/* Masatake YAMATO, Redhat K.K. */ +/* */ +/* Copyright 2003, 2008, 2009, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/* Development of this service is support of + Information-technology Promotion Agency, Japan. */ + +#ifndef __SVTTCMAP_H__ +#define __SVTTCMAP_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_TRUETYPE_TABLES_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_TT_CMAP "tt-cmaps" + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_CMapInfo */ + /* */ + /* <Description> */ + /* A structure used to store TrueType/sfnt specific cmap information */ + /* which is not covered by the generic @FT_CharMap structure. This */ + /* structure can be accessed with the @FT_Get_TT_CMap_Info function. */ + /* */ + /* <Fields> */ + /* language :: */ + /* The language ID used in Mac fonts. Definitions of values are in */ + /* freetype/ttnameid.h. */ + /* */ + /* format :: */ + /* The cmap format. OpenType 1.5 defines the formats 0 (byte */ + /* encoding table), 2~(high-byte mapping through table), 4~(segment */ + /* mapping to delta values), 6~(trimmed table mapping), 8~(mixed */ + /* 16-bit and 32-bit coverage), 10~(trimmed array), 12~(segmented */ + /* coverage), and 14 (Unicode Variation Sequences). */ + /* */ + typedef struct TT_CMapInfo_ + { + FT_ULong language; + FT_Long format; + + } TT_CMapInfo; + + + typedef FT_Error + (*TT_CMap_Info_GetFunc)( FT_CharMap charmap, + TT_CMapInfo *cmap_info ); + + + FT_DEFINE_SERVICE( TTCMaps ) + { + TT_CMap_Info_GetFunc get_cmap_info; + }; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_TTCMAPSREC( class_, get_cmap_info_ ) \ + static const FT_Service_TTCMapsRec class_ = \ + { \ + get_cmap_info_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_TTCMAPSREC( class_, get_cmap_info_ ) \ + void \ + FT_Init_Class_ ## class_( FT_Library library, \ + FT_Service_TTCMapsRec* clazz ) \ + { \ + FT_UNUSED( library ); \ + \ + clazz->get_cmap_info = get_cmap_info_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + +#endif /* __SVTTCMAP_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svtteng.h b/include/freetype/internal/services/svtteng.h new file mode 100644 index 0000000..58e02a6 --- /dev/null +++ b/include/freetype/internal/services/svtteng.h @@ -0,0 +1,53 @@ +/***************************************************************************/ +/* */ +/* svtteng.h */ +/* */ +/* The FreeType TrueType engine query service (specification). */ +/* */ +/* Copyright 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVTTENG_H__ +#define __SVTTENG_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_MODULE_H + + +FT_BEGIN_HEADER + + + /* + * SFNT table loading service. + */ + +#define FT_SERVICE_ID_TRUETYPE_ENGINE "truetype-engine" + + /* + * Used to implement FT_Get_TrueType_Engine_Type + */ + + FT_DEFINE_SERVICE( TrueTypeEngine ) + { + FT_TrueTypeEngineType engine_type; + }; + + /* */ + + +FT_END_HEADER + + +#endif /* __SVTTENG_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svttglyf.h b/include/freetype/internal/services/svttglyf.h new file mode 100644 index 0000000..369eb84 --- /dev/null +++ b/include/freetype/internal/services/svttglyf.h @@ -0,0 +1,68 @@ +/***************************************************************************/ +/* */ +/* svttglyf.h */ +/* */ +/* The FreeType TrueType glyph service. */ +/* */ +/* Copyright 2007, 2009, 2012 by David Turner. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#ifndef __SVTTGLYF_H__ +#define __SVTTGLYF_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_TRUETYPE_TABLES_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_TT_GLYF "tt-glyf" + + + typedef FT_ULong + (*TT_Glyf_GetLocationFunc)( FT_Face face, + FT_UInt gindex, + FT_ULong *psize ); + + FT_DEFINE_SERVICE( TTGlyf ) + { + TT_Glyf_GetLocationFunc get_location; + }; + + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_SERVICE_TTGLYFREC( class_, get_location_ ) \ + static const FT_Service_TTGlyfRec class_ = \ + { \ + get_location_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_SERVICE_TTGLYFREC( class_, get_location_ ) \ + void \ + FT_Init_Class_ ## class_( FT_Service_TTGlyfRec* clazz ) \ + { \ + clazz->get_location = get_location_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + + +FT_END_HEADER + +#endif /* __SVTTGLYF_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svwinfnt.h b/include/freetype/internal/services/svwinfnt.h new file mode 100644 index 0000000..57f7765 --- /dev/null +++ b/include/freetype/internal/services/svwinfnt.h @@ -0,0 +1,50 @@ +/***************************************************************************/ +/* */ +/* svwinfnt.h */ +/* */ +/* The FreeType Windows FNT/FONT service (specification). */ +/* */ +/* Copyright 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVWINFNT_H__ +#define __SVWINFNT_H__ + +#include FT_INTERNAL_SERVICE_H +#include FT_WINFONTS_H + + +FT_BEGIN_HEADER + + +#define FT_SERVICE_ID_WINFNT "winfonts" + + typedef FT_Error + (*FT_WinFnt_GetHeaderFunc)( FT_Face face, + FT_WinFNT_HeaderRec *aheader ); + + + FT_DEFINE_SERVICE( WinFnt ) + { + FT_WinFnt_GetHeaderFunc get_header; + }; + + /* */ + + +FT_END_HEADER + + +#endif /* __SVWINFNT_H__ */ + + +/* END */ diff --git a/include/freetype/internal/services/svxf86nm.h b/include/freetype/internal/services/svxf86nm.h new file mode 100644 index 0000000..ca5d884 --- /dev/null +++ b/include/freetype/internal/services/svxf86nm.h @@ -0,0 +1,55 @@ +/***************************************************************************/ +/* */ +/* svxf86nm.h */ +/* */ +/* The FreeType XFree86 services (specification only). */ +/* */ +/* Copyright 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SVXF86NM_H__ +#define __SVXF86NM_H__ + +#include FT_INTERNAL_SERVICE_H + + +FT_BEGIN_HEADER + + + /* + * A trivial service used to return the name of a face's font driver, + * according to the XFree86 nomenclature. Note that the service data + * is a simple constant string pointer. + */ + +#define FT_SERVICE_ID_XF86_NAME "xf86-driver-name" + +#define FT_XF86_FORMAT_TRUETYPE "TrueType" +#define FT_XF86_FORMAT_TYPE_1 "Type 1" +#define FT_XF86_FORMAT_BDF "BDF" +#define FT_XF86_FORMAT_PCF "PCF" +#define FT_XF86_FORMAT_TYPE_42 "Type 42" +#define FT_XF86_FORMAT_CID "CID Type 1" +#define FT_XF86_FORMAT_CFF "CFF" +#define FT_XF86_FORMAT_PFR "PFR" +#define FT_XF86_FORMAT_WINFNT "Windows FNT" + + /* */ + + +FT_END_HEADER + + +#endif /* __SVXF86NM_H__ */ + + +/* END */ diff --git a/include/freetype/internal/sfnt.h b/include/freetype/internal/sfnt.h new file mode 100644 index 0000000..905ca8c --- /dev/null +++ b/include/freetype/internal/sfnt.h @@ -0,0 +1,897 @@ +/***************************************************************************/ +/* */ +/* sfnt.h */ +/* */ +/* High-level `sfnt' driver interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SFNT_H__ +#define __SFNT_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_DRIVER_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Init_Face_Func */ + /* */ + /* <Description> */ + /* First part of the SFNT face object initialization. This finds */ + /* the face in a SFNT file or collection, and load its format tag in */ + /* face->format_tag. */ + /* */ + /* <Input> */ + /* stream :: The input stream. */ + /* */ + /* face :: A handle to the target face object. */ + /* */ + /* face_index :: The index of the TrueType font, if we are opening a */ + /* collection. */ + /* */ + /* num_params :: The number of additional parameters. */ + /* */ + /* params :: Optional additional parameters. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be at the font file's origin. */ + /* */ + /* This function recognizes fonts embedded in a `TrueType */ + /* collection'. */ + /* */ + /* Once the format tag has been validated by the font driver, it */ + /* should then call the TT_Load_Face_Func() callback to read the rest */ + /* of the SFNT tables in the object. */ + /* */ + typedef FT_Error + (*TT_Init_Face_Func)( FT_Stream stream, + TT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_Face_Func */ + /* */ + /* <Description> */ + /* Second part of the SFNT face object initialization. This loads */ + /* the common SFNT tables (head, OS/2, maxp, metrics, etc.) in the */ + /* face object. */ + /* */ + /* <Input> */ + /* stream :: The input stream. */ + /* */ + /* face :: A handle to the target face object. */ + /* */ + /* face_index :: The index of the TrueType font, if we are opening a */ + /* collection. */ + /* */ + /* num_params :: The number of additional parameters. */ + /* */ + /* params :: Optional additional parameters. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* This function must be called after TT_Init_Face_Func(). */ + /* */ + typedef FT_Error + (*TT_Load_Face_Func)( FT_Stream stream, + TT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Done_Face_Func */ + /* */ + /* <Description> */ + /* A callback used to delete the common SFNT data from a face. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* <Note> */ + /* This function does NOT destroy the face object. */ + /* */ + typedef void + (*TT_Done_Face_Func)( TT_Face face ); + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_SFNT_HeaderRec_Func */ + /* */ + /* <Description> */ + /* Loads the header of a SFNT font file. Supports collections. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* face_index :: The index of the TrueType font, if we are opening a */ + /* collection. */ + /* */ + /* <Output> */ + /* sfnt :: The SFNT header. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be at the font file's origin. */ + /* */ + /* This function recognizes fonts embedded in a `TrueType */ + /* collection'. */ + /* */ + /* This function checks that the header is valid by looking at the */ + /* values of `search_range', `entry_selector', and `range_shift'. */ + /* */ + typedef FT_Error + (*TT_Load_SFNT_HeaderRec_Func)( TT_Face face, + FT_Stream stream, + FT_Long face_index, + SFNT_Header sfnt ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_Directory_Func */ + /* */ + /* <Description> */ + /* Loads the table directory into a face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* sfnt :: The SFNT header. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be on the first byte after the 4-byte font */ + /* format tag. This is the case just after a call to */ + /* TT_Load_Format_Tag(). */ + /* */ + typedef FT_Error + (*TT_Load_Directory_Func)( TT_Face face, + FT_Stream stream, + SFNT_Header sfnt ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_Any_Func */ + /* */ + /* <Description> */ + /* Load any font table into client memory. */ + /* */ + /* <Input> */ + /* face :: The face object to look for. */ + /* */ + /* tag :: The tag of table to load. Use the value 0 if you want */ + /* to access the whole font file, else set this parameter */ + /* to a valid TrueType table tag that you can forge with */ + /* the MAKE_TT_TAG macro. */ + /* */ + /* offset :: The starting offset in the table (or the file if */ + /* tag == 0). */ + /* */ + /* length :: The address of the decision variable: */ + /* */ + /* If length == NULL: */ + /* Loads the whole table. Returns an error if */ + /* `offset' == 0! */ + /* */ + /* If *length == 0: */ + /* Exits immediately; returning the length of the given */ + /* table or of the font file, depending on the value of */ + /* `tag'. */ + /* */ + /* If *length != 0: */ + /* Loads the next `length' bytes of table or font, */ + /* starting at offset `offset' (in table or font too). */ + /* */ + /* <Output> */ + /* buffer :: The address of target buffer. */ + /* */ + /* <Return> */ + /* TrueType error code. 0 means success. */ + /* */ + typedef FT_Error + (*TT_Load_Any_Func)( TT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte *buffer, + FT_ULong* length ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Find_SBit_Image_Func */ + /* */ + /* <Description> */ + /* Check whether an embedded bitmap (an `sbit') exists for a given */ + /* glyph, at a given strike. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* glyph_index :: The glyph index. */ + /* */ + /* strike_index :: The current strike index. */ + /* */ + /* <Output> */ + /* arange :: The SBit range containing the glyph index. */ + /* */ + /* astrike :: The SBit strike containing the glyph index. */ + /* */ + /* aglyph_offset :: The offset of the glyph data in `EBDT' table. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns */ + /* SFNT_Err_Invalid_Argument if no sbit exists for the requested */ + /* glyph. */ + /* */ + typedef FT_Error + (*TT_Find_SBit_Image_Func)( TT_Face face, + FT_UInt glyph_index, + FT_ULong strike_index, + TT_SBit_Range *arange, + TT_SBit_Strike *astrike, + FT_ULong *aglyph_offset ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_SBit_Metrics_Func */ + /* */ + /* <Description> */ + /* Get the big metrics for a given embedded bitmap. */ + /* */ + /* <Input> */ + /* stream :: The input stream. */ + /* */ + /* range :: The SBit range containing the glyph. */ + /* */ + /* <Output> */ + /* big_metrics :: A big SBit metrics structure for the glyph. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be positioned at the glyph's offset within */ + /* the `EBDT' table before the call. */ + /* */ + /* If the image format uses variable metrics, the stream cursor is */ + /* positioned just after the metrics header in the `EBDT' table on */ + /* function exit. */ + /* */ + typedef FT_Error + (*TT_Load_SBit_Metrics_Func)( FT_Stream stream, + TT_SBit_Range range, + TT_SBit_Metrics metrics ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_SBit_Image_Func */ + /* */ + /* <Description> */ + /* Load a given glyph sbit image from the font resource. This also */ + /* returns its metrics. */ + /* */ + /* <Input> */ + /* face :: */ + /* The target face object. */ + /* */ + /* strike_index :: */ + /* The strike index. */ + /* */ + /* glyph_index :: */ + /* The current glyph index. */ + /* */ + /* load_flags :: */ + /* The current load flags. */ + /* */ + /* stream :: */ + /* The input stream. */ + /* */ + /* <Output> */ + /* amap :: */ + /* The target pixmap. */ + /* */ + /* ametrics :: */ + /* A big sbit metrics structure for the glyph image. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns an error if no */ + /* glyph sbit exists for the index. */ + /* */ + /* <Note> */ + /* The `map.buffer' field is always freed before the glyph is loaded. */ + /* */ + typedef FT_Error + (*TT_Load_SBit_Image_Func)( TT_Face face, + FT_ULong strike_index, + FT_UInt glyph_index, + FT_UInt load_flags, + FT_Stream stream, + FT_Bitmap *amap, + TT_SBit_MetricsRec *ametrics ); + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Set_SBit_Strike_OldFunc */ + /* */ + /* <Description> */ + /* Select an sbit strike for a given size request. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* req :: The size request. */ + /* */ + /* <Output> */ + /* astrike_index :: The index of the sbit strike. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns an error if no */ + /* sbit strike exists for the selected ppem values. */ + /* */ + typedef FT_Error + (*TT_Set_SBit_Strike_OldFunc)( TT_Face face, + FT_UInt x_ppem, + FT_UInt y_ppem, + FT_ULong* astrike_index ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_CharMap_Load_Func */ + /* */ + /* <Description> */ + /* Loads a given TrueType character map into memory. */ + /* */ + /* <Input> */ + /* face :: A handle to the parent face object. */ + /* */ + /* stream :: A handle to the current stream object. */ + /* */ + /* <InOut> */ + /* cmap :: A pointer to a cmap object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The function assumes that the stream is already in use (i.e., */ + /* opened). In case of error, all partially allocated tables are */ + /* released. */ + /* */ + typedef FT_Error + (*TT_CharMap_Load_Func)( TT_Face face, + void* cmap, + FT_Stream input ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_CharMap_Free_Func */ + /* */ + /* <Description> */ + /* Destroys a character mapping table. */ + /* */ + /* <Input> */ + /* face :: A handle to the parent face object. */ + /* */ + /* cmap :: A handle to a cmap object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + typedef FT_Error + (*TT_CharMap_Free_Func)( TT_Face face, + void* cmap ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Set_SBit_Strike_Func */ + /* */ + /* <Description> */ + /* Select an sbit strike for a given size request. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* req :: The size request. */ + /* */ + /* <Output> */ + /* astrike_index :: The index of the sbit strike. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns an error if no */ + /* sbit strike exists for the selected ppem values. */ + /* */ + typedef FT_Error + (*TT_Set_SBit_Strike_Func)( TT_Face face, + FT_Size_Request req, + FT_ULong* astrike_index ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_Strike_Metrics_Func */ + /* */ + /* <Description> */ + /* Load the metrics of a given strike. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* strike_index :: The strike index. */ + /* */ + /* <Output> */ + /* metrics :: the metrics of the strike. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns an error if no */ + /* such sbit strike exists. */ + /* */ + typedef FT_Error + (*TT_Load_Strike_Metrics_Func)( TT_Face face, + FT_ULong strike_index, + FT_Size_Metrics* metrics ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Get_PS_Name_Func */ + /* */ + /* <Description> */ + /* Get the PostScript glyph name of a glyph. */ + /* */ + /* <Input> */ + /* idx :: The glyph index. */ + /* */ + /* PSname :: The address of a string pointer. Will be NULL in case */ + /* of error, otherwise it is a pointer to the glyph name. */ + /* */ + /* You must not modify the returned string! */ + /* */ + /* <Output> */ + /* FreeType error code. 0 means success. */ + /* */ + typedef FT_Error + (*TT_Get_PS_Name_Func)( TT_Face face, + FT_UInt idx, + FT_String** PSname ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_Metrics_Func */ + /* */ + /* <Description> */ + /* Load a metrics table, which is a table with a horizontal and a */ + /* vertical version. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* vertical :: A boolean flag. If set, load the vertical one. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + typedef FT_Error + (*TT_Load_Metrics_Func)( TT_Face face, + FT_Stream stream, + FT_Bool vertical ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Get_Metrics_Func */ + /* */ + /* <Description> */ + /* Load the horizontal or vertical header in a face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* vertical :: A boolean flag. If set, load vertical metrics. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + typedef FT_Error + (*TT_Get_Metrics_Func)( TT_Face face, + FT_Bool vertical, + FT_UInt gindex, + FT_Short* abearing, + FT_UShort* aadvance ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Load_Table_Func */ + /* */ + /* <Description> */ + /* Load a given TrueType table. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The function uses `face->goto_table' to seek the stream to the */ + /* start of the table, except while loading the font directory. */ + /* */ + typedef FT_Error + (*TT_Load_Table_Func)( TT_Face face, + FT_Stream stream ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Free_Table_Func */ + /* */ + /* <Description> */ + /* Free a given TrueType table. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + typedef void + (*TT_Free_Table_Func)( TT_Face face ); + + + /* + * @functype: + * TT_Face_GetKerningFunc + * + * @description: + * Return the horizontal kerning value between two glyphs. + * + * @input: + * face :: A handle to the source face object. + * left_glyph :: The left glyph index. + * right_glyph :: The right glyph index. + * + * @return: + * The kerning value in font units. + */ + typedef FT_Int + (*TT_Face_GetKerningFunc)( TT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph ); + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* SFNT_Interface */ + /* */ + /* <Description> */ + /* This structure holds pointers to the functions used to load and */ + /* free the basic tables that are required in a `sfnt' font file. */ + /* */ + /* <Fields> */ + /* Check the various xxx_Func() descriptions for details. */ + /* */ + typedef struct SFNT_Interface_ + { + TT_Loader_GotoTableFunc goto_table; + + TT_Init_Face_Func init_face; + TT_Load_Face_Func load_face; + TT_Done_Face_Func done_face; + FT_Module_Requester get_interface; + + TT_Load_Any_Func load_any; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + TT_Load_SFNT_HeaderRec_Func load_sfnt_header; + TT_Load_Directory_Func load_directory; +#endif + + /* these functions are called by `load_face' but they can also */ + /* be called from external modules, if there is a need to do so */ + TT_Load_Table_Func load_head; + TT_Load_Metrics_Func load_hhea; + TT_Load_Table_Func load_cmap; + TT_Load_Table_Func load_maxp; + TT_Load_Table_Func load_os2; + TT_Load_Table_Func load_post; + + TT_Load_Table_Func load_name; + TT_Free_Table_Func free_name; + + /* optional tables */ +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + TT_Load_Table_Func load_hdmx_stub; + TT_Free_Table_Func free_hdmx_stub; +#endif + + /* this field was called `load_kerning' up to version 2.1.10 */ + TT_Load_Table_Func load_kern; + + TT_Load_Table_Func load_gasp; + TT_Load_Table_Func load_pclt; + + /* see `ttload.h'; this field was called `load_bitmap_header' up to */ + /* version 2.1.10 */ + TT_Load_Table_Func load_bhed; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* see `ttsbit.h' */ + TT_Set_SBit_Strike_OldFunc set_sbit_strike_stub; + TT_Load_Table_Func load_sbits_stub; + + /* + * The following two fields appeared in version 2.1.8, and were placed + * between `load_sbits' and `load_sbit_image'. We support them as a + * special exception since they are used by Xfont library within the + * X.Org xserver, and because the probability that other rogue clients + * use the other version 2.1.7 fields below is _extremely_ low. + * + * Note that this forces us to disable an interesting memory-saving + * optimization though... + */ + + TT_Find_SBit_Image_Func find_sbit_image; + TT_Load_SBit_Metrics_Func load_sbit_metrics; + +#endif + + TT_Load_SBit_Image_Func load_sbit_image; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + TT_Free_Table_Func free_sbits_stub; +#endif + + /* see `ttpost.h' */ + TT_Get_PS_Name_Func get_psname; + TT_Free_Table_Func free_psnames; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + TT_CharMap_Load_Func load_charmap_stub; + TT_CharMap_Free_Func free_charmap_stub; +#endif + + /* starting here, the structure differs from version 2.1.7 */ + + /* this field was introduced in version 2.1.8, named `get_psname' */ + TT_Face_GetKerningFunc get_kerning; + + /* new elements introduced after version 2.1.10 */ + + /* load the font directory, i.e., the offset table and */ + /* the table directory */ + TT_Load_Table_Func load_font_dir; + TT_Load_Metrics_Func load_hmtx; + + TT_Load_Table_Func load_eblc; + TT_Free_Table_Func free_eblc; + + TT_Set_SBit_Strike_Func set_sbit_strike; + TT_Load_Strike_Metrics_Func load_strike_metrics; + + TT_Get_Metrics_Func get_metrics; + + } SFNT_Interface; + + + /* transitional */ + typedef SFNT_Interface* SFNT_Service; + +#ifndef FT_CONFIG_OPTION_PIC + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS +#define FT_DEFINE_DRIVERS_OLD_INTERNAL(a) \ + a, +#else + #define FT_DEFINE_DRIVERS_OLD_INTERNAL(a) +#endif +#define FT_INTERNAL(a) \ + a, + +#define FT_DEFINE_SFNT_INTERFACE(class_, \ + goto_table_, init_face_, load_face_, done_face_, get_interface_, \ + load_any_, load_sfnt_header_, load_directory_, load_head_, \ + load_hhea_, load_cmap_, load_maxp_, load_os2_, load_post_, \ + load_name_, free_name_, load_hdmx_stub_, free_hdmx_stub_, \ + load_kern_, load_gasp_, load_pclt_, load_bhed_, \ + set_sbit_strike_stub_, load_sbits_stub_, find_sbit_image_, \ + load_sbit_metrics_, load_sbit_image_, free_sbits_stub_, \ + get_psname_, free_psnames_, load_charmap_stub_, free_charmap_stub_, \ + get_kerning_, load_font_dir_, load_hmtx_, load_eblc_, free_eblc_, \ + set_sbit_strike_, load_strike_metrics_, get_metrics_ ) \ + static const SFNT_Interface class_ = \ + { \ + FT_INTERNAL(goto_table_) \ + FT_INTERNAL(init_face_) \ + FT_INTERNAL(load_face_) \ + FT_INTERNAL(done_face_) \ + FT_INTERNAL(get_interface_) \ + FT_INTERNAL(load_any_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_sfnt_header_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_directory_) \ + FT_INTERNAL(load_head_) \ + FT_INTERNAL(load_hhea_) \ + FT_INTERNAL(load_cmap_) \ + FT_INTERNAL(load_maxp_) \ + FT_INTERNAL(load_os2_) \ + FT_INTERNAL(load_post_) \ + FT_INTERNAL(load_name_) \ + FT_INTERNAL(free_name_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_hdmx_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(free_hdmx_stub_) \ + FT_INTERNAL(load_kern_) \ + FT_INTERNAL(load_gasp_) \ + FT_INTERNAL(load_pclt_) \ + FT_INTERNAL(load_bhed_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(set_sbit_strike_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_sbits_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(find_sbit_image_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_sbit_metrics_) \ + FT_INTERNAL(load_sbit_image_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(free_sbits_stub_) \ + FT_INTERNAL(get_psname_) \ + FT_INTERNAL(free_psnames_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_charmap_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(free_charmap_stub_) \ + FT_INTERNAL(get_kerning_) \ + FT_INTERNAL(load_font_dir_) \ + FT_INTERNAL(load_hmtx_) \ + FT_INTERNAL(load_eblc_) \ + FT_INTERNAL(free_eblc_) \ + FT_INTERNAL(set_sbit_strike_) \ + FT_INTERNAL(load_strike_metrics_) \ + FT_INTERNAL(get_metrics_) \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS +#define FT_DEFINE_DRIVERS_OLD_INTERNAL(a, a_) \ + clazz->a = a_; +#else + #define FT_DEFINE_DRIVERS_OLD_INTERNAL(a, a_) +#endif +#define FT_INTERNAL(a, a_) \ + clazz->a = a_; + +#define FT_DEFINE_SFNT_INTERFACE(class_, \ + goto_table_, init_face_, load_face_, done_face_, get_interface_, \ + load_any_, load_sfnt_header_, load_directory_, load_head_, \ + load_hhea_, load_cmap_, load_maxp_, load_os2_, load_post_, \ + load_name_, free_name_, load_hdmx_stub_, free_hdmx_stub_, \ + load_kern_, load_gasp_, load_pclt_, load_bhed_, \ + set_sbit_strike_stub_, load_sbits_stub_, find_sbit_image_, \ + load_sbit_metrics_, load_sbit_image_, free_sbits_stub_, \ + get_psname_, free_psnames_, load_charmap_stub_, free_charmap_stub_, \ + get_kerning_, load_font_dir_, load_hmtx_, load_eblc_, free_eblc_, \ + set_sbit_strike_, load_strike_metrics_, get_metrics_ ) \ + void \ + FT_Init_Class_##class_( FT_Library library, SFNT_Interface* clazz ) \ + { \ + FT_UNUSED(library); \ + FT_INTERNAL(goto_table,goto_table_) \ + FT_INTERNAL(init_face,init_face_) \ + FT_INTERNAL(load_face,load_face_) \ + FT_INTERNAL(done_face,done_face_) \ + FT_INTERNAL(get_interface,get_interface_) \ + FT_INTERNAL(load_any,load_any_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_sfnt_header,load_sfnt_header_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_directory,load_directory_) \ + FT_INTERNAL(load_head,load_head_) \ + FT_INTERNAL(load_hhea,load_hhea_) \ + FT_INTERNAL(load_cmap,load_cmap_) \ + FT_INTERNAL(load_maxp,load_maxp_) \ + FT_INTERNAL(load_os2,load_os2_) \ + FT_INTERNAL(load_post,load_post_) \ + FT_INTERNAL(load_name,load_name_) \ + FT_INTERNAL(free_name,free_name_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_hdmx_stub,load_hdmx_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(free_hdmx_stub,free_hdmx_stub_) \ + FT_INTERNAL(load_kern,load_kern_) \ + FT_INTERNAL(load_gasp,load_gasp_) \ + FT_INTERNAL(load_pclt,load_pclt_) \ + FT_INTERNAL(load_bhed,load_bhed_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(set_sbit_strike_stub,set_sbit_strike_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_sbits_stub,load_sbits_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(find_sbit_image,find_sbit_image_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_sbit_metrics,load_sbit_metrics_) \ + FT_INTERNAL(load_sbit_image,load_sbit_image_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(free_sbits_stub,free_sbits_stub_) \ + FT_INTERNAL(get_psname,get_psname_) \ + FT_INTERNAL(free_psnames,free_psnames_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(load_charmap_stub,load_charmap_stub_) \ + FT_DEFINE_DRIVERS_OLD_INTERNAL(free_charmap_stub,free_charmap_stub_) \ + FT_INTERNAL(get_kerning,get_kerning_) \ + FT_INTERNAL(load_font_dir,load_font_dir_) \ + FT_INTERNAL(load_hmtx,load_hmtx_) \ + FT_INTERNAL(load_eblc,load_eblc_) \ + FT_INTERNAL(free_eblc,free_eblc_) \ + FT_INTERNAL(set_sbit_strike,set_sbit_strike_) \ + FT_INTERNAL(load_strike_metrics,load_strike_metrics_) \ + FT_INTERNAL(get_metrics,get_metrics_) \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + +FT_END_HEADER + +#endif /* __SFNT_H__ */ + + +/* END */ diff --git a/include/freetype/internal/t1types.h b/include/freetype/internal/t1types.h new file mode 100644 index 0000000..f859de2 --- /dev/null +++ b/include/freetype/internal/t1types.h @@ -0,0 +1,259 @@ +/***************************************************************************/ +/* */ +/* t1types.h */ +/* */ +/* Basic Type1/Type2 type definitions and interface (specification */ +/* only). */ +/* */ +/* Copyright 1996-2004, 2006, 2008, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1TYPES_H__ +#define __T1TYPES_H__ + + +#include <ft2build.h> +#include FT_TYPE1_TABLES_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H +#include FT_INTERNAL_SERVICE_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** REQUIRED TYPE1/TYPE2 TABLES DEFINITIONS ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* T1_EncodingRec */ + /* */ + /* <Description> */ + /* A structure modeling a custom encoding. */ + /* */ + /* <Fields> */ + /* num_chars :: The number of character codes in the encoding. */ + /* Usually 256. */ + /* */ + /* code_first :: The lowest valid character code in the encoding. */ + /* */ + /* code_last :: The highest valid character code in the encoding */ + /* + 1. When equal to code_first there are no valid */ + /* character codes. */ + /* */ + /* char_index :: An array of corresponding glyph indices. */ + /* */ + /* char_name :: An array of corresponding glyph names. */ + /* */ + typedef struct T1_EncodingRecRec_ + { + FT_Int num_chars; + FT_Int code_first; + FT_Int code_last; + + FT_UShort* char_index; + FT_String** char_name; + + } T1_EncodingRec, *T1_Encoding; + + + /* used to hold extra data of PS_FontInfoRec that + * cannot be stored in the publicly defined structure. + * + * Note these can't be blended with multiple-masters. + */ + typedef struct PS_FontExtraRec_ + { + FT_UShort fs_type; + + } PS_FontExtraRec; + + + typedef struct T1_FontRec_ + { + PS_FontInfoRec font_info; /* font info dictionary */ + PS_FontExtraRec font_extra; /* font info extra fields */ + PS_PrivateRec private_dict; /* private dictionary */ + FT_String* font_name; /* top-level dictionary */ + + T1_EncodingType encoding_type; + T1_EncodingRec encoding; + + FT_Byte* subrs_block; + FT_Byte* charstrings_block; + FT_Byte* glyph_names_block; + + FT_Int num_subrs; + FT_Byte** subrs; + FT_PtrDist* subrs_len; + + FT_Int num_glyphs; + FT_String** glyph_names; /* array of glyph names */ + FT_Byte** charstrings; /* array of glyph charstrings */ + FT_PtrDist* charstrings_len; + + FT_Byte paint_type; + FT_Byte font_type; + FT_Matrix font_matrix; + FT_Vector font_offset; + FT_BBox font_bbox; + FT_Long font_id; + + FT_Fixed stroke_width; + + } T1_FontRec, *T1_Font; + + + typedef struct CID_SubrsRec_ + { + FT_UInt num_subrs; + FT_Byte** code; + + } CID_SubrsRec, *CID_Subrs; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** AFM FONT INFORMATION STRUCTURES ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct AFM_TrackKernRec_ + { + FT_Int degree; + FT_Fixed min_ptsize; + FT_Fixed min_kern; + FT_Fixed max_ptsize; + FT_Fixed max_kern; + + } AFM_TrackKernRec, *AFM_TrackKern; + + typedef struct AFM_KernPairRec_ + { + FT_Int index1; + FT_Int index2; + FT_Int x; + FT_Int y; + + } AFM_KernPairRec, *AFM_KernPair; + + typedef struct AFM_FontInfoRec_ + { + FT_Bool IsCIDFont; + FT_BBox FontBBox; + FT_Fixed Ascender; + FT_Fixed Descender; + AFM_TrackKern TrackKerns; /* free if non-NULL */ + FT_Int NumTrackKern; + AFM_KernPair KernPairs; /* free if non-NULL */ + FT_Int NumKernPair; + + } AFM_FontInfoRec, *AFM_FontInfo; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** ORIGINAL T1_FACE CLASS DEFINITION ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + typedef struct T1_FaceRec_* T1_Face; + typedef struct CID_FaceRec_* CID_Face; + + + typedef struct T1_FaceRec_ + { + FT_FaceRec root; + T1_FontRec type1; + const void* psnames; + const void* psaux; + const void* afm_data; + FT_CharMapRec charmaprecs[2]; + FT_CharMap charmaps[2]; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + PS_Unicodes unicode_map; +#endif + + /* support for Multiple Masters fonts */ + PS_Blend blend; + + /* undocumented, optional: indices of subroutines that express */ + /* the NormalizeDesignVector and the ConvertDesignVector procedure, */ + /* respectively, as Type 2 charstrings; -1 if keywords not present */ + FT_Int ndv_idx; + FT_Int cdv_idx; + + /* undocumented, optional: has the same meaning as len_buildchar */ + /* for Type 2 fonts; manipulated by othersubrs 19, 24, and 25 */ + FT_UInt len_buildchar; + FT_Long* buildchar; + + /* since version 2.1 - interface to PostScript hinter */ + const void* pshinter; + + } T1_FaceRec; + + + typedef struct CID_FaceRec_ + { + FT_FaceRec root; + void* psnames; + void* psaux; + CID_FaceInfoRec cid; + PS_FontExtraRec font_extra; +#if 0 + void* afm_data; +#endif + CID_Subrs subrs; + + /* since version 2.1 - interface to PostScript hinter */ + void* pshinter; + + /* since version 2.1.8, but was originally positioned after `afm_data' */ + FT_Byte* binary_data; /* used if hex data has been converted */ + FT_Stream cid_stream; + + } CID_FaceRec; + + +FT_END_HEADER + +#endif /* __T1TYPES_H__ */ + + +/* END */ diff --git a/include/freetype/internal/tttypes.h b/include/freetype/internal/tttypes.h new file mode 100644 index 0000000..57b1731 --- /dev/null +++ b/include/freetype/internal/tttypes.h @@ -0,0 +1,1543 @@ +/***************************************************************************/ +/* */ +/* tttypes.h */ +/* */ +/* Basic SFNT/TrueType type definitions and interface (specification */ +/* only). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTTYPES_H__ +#define __TTTYPES_H__ + + +#include <ft2build.h> +#include FT_TRUETYPE_TABLES_H +#include FT_INTERNAL_OBJECTS_H + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include FT_MULTIPLE_MASTERS_H +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** REQUIRED TRUETYPE/OPENTYPE TABLES DEFINITIONS ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TTC_HeaderRec */ + /* */ + /* <Description> */ + /* TrueType collection header. This table contains the offsets of */ + /* the font headers of each distinct TrueType face in the file. */ + /* */ + /* <Fields> */ + /* tag :: Must be `ttc ' to indicate a TrueType collection. */ + /* */ + /* version :: The version number. */ + /* */ + /* count :: The number of faces in the collection. The */ + /* specification says this should be an unsigned long, but */ + /* we use a signed long since we need the value -1 for */ + /* specific purposes. */ + /* */ + /* offsets :: The offsets of the font headers, one per face. */ + /* */ + typedef struct TTC_HeaderRec_ + { + FT_ULong tag; + FT_Fixed version; + FT_Long count; + FT_ULong* offsets; + + } TTC_HeaderRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* SFNT_HeaderRec */ + /* */ + /* <Description> */ + /* SFNT file format header. */ + /* */ + /* <Fields> */ + /* format_tag :: The font format tag. */ + /* */ + /* num_tables :: The number of tables in file. */ + /* */ + /* search_range :: Must be `16 * (max power of 2 <= num_tables)'. */ + /* */ + /* entry_selector :: Must be log2 of `search_range / 16'. */ + /* */ + /* range_shift :: Must be `num_tables * 16 - search_range'. */ + /* */ + typedef struct SFNT_HeaderRec_ + { + FT_ULong format_tag; + FT_UShort num_tables; + FT_UShort search_range; + FT_UShort entry_selector; + FT_UShort range_shift; + + FT_ULong offset; /* not in file */ + + } SFNT_HeaderRec, *SFNT_Header; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_TableRec */ + /* */ + /* <Description> */ + /* This structure describes a given table of a TrueType font. */ + /* */ + /* <Fields> */ + /* Tag :: A four-bytes tag describing the table. */ + /* */ + /* CheckSum :: The table checksum. This value can be ignored. */ + /* */ + /* Offset :: The offset of the table from the start of the TrueType */ + /* font in its resource. */ + /* */ + /* Length :: The table length (in bytes). */ + /* */ + typedef struct TT_TableRec_ + { + FT_ULong Tag; /* table type */ + FT_ULong CheckSum; /* table checksum */ + FT_ULong Offset; /* table file offset */ + FT_ULong Length; /* table length */ + + } TT_TableRec, *TT_Table; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_LongMetricsRec */ + /* */ + /* <Description> */ + /* A structure modeling the long metrics of the `hmtx' and `vmtx' */ + /* TrueType tables. The values are expressed in font units. */ + /* */ + /* <Fields> */ + /* advance :: The advance width or height for the glyph. */ + /* */ + /* bearing :: The left-side or top-side bearing for the glyph. */ + /* */ + typedef struct TT_LongMetricsRec_ + { + FT_UShort advance; + FT_Short bearing; + + } TT_LongMetricsRec, *TT_LongMetrics; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* TT_ShortMetrics */ + /* */ + /* <Description> */ + /* A simple type to model the short metrics of the `hmtx' and `vmtx' */ + /* tables. */ + /* */ + typedef FT_Short TT_ShortMetrics; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_NameEntryRec */ + /* */ + /* <Description> */ + /* A structure modeling TrueType name records. Name records are used */ + /* to store important strings like family name, style name, */ + /* copyright, etc. in _localized_ versions (i.e., language, encoding, */ + /* etc). */ + /* */ + /* <Fields> */ + /* platformID :: The ID of the name's encoding platform. */ + /* */ + /* encodingID :: The platform-specific ID for the name's encoding. */ + /* */ + /* languageID :: The platform-specific ID for the name's language. */ + /* */ + /* nameID :: The ID specifying what kind of name this is. */ + /* */ + /* stringLength :: The length of the string in bytes. */ + /* */ + /* stringOffset :: The offset to the string in the `name' table. */ + /* */ + /* string :: A pointer to the string's bytes. Note that these */ + /* are usually UTF-16 encoded characters. */ + /* */ + typedef struct TT_NameEntryRec_ + { + FT_UShort platformID; + FT_UShort encodingID; + FT_UShort languageID; + FT_UShort nameID; + FT_UShort stringLength; + FT_ULong stringOffset; + + /* this last field is not defined in the spec */ + /* but used by the FreeType engine */ + + FT_Byte* string; + + } TT_NameEntryRec, *TT_NameEntry; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_NameTableRec */ + /* */ + /* <Description> */ + /* A structure modeling the TrueType name table. */ + /* */ + /* <Fields> */ + /* format :: The format of the name table. */ + /* */ + /* numNameRecords :: The number of names in table. */ + /* */ + /* storageOffset :: The offset of the name table in the `name' */ + /* TrueType table. */ + /* */ + /* names :: An array of name records. */ + /* */ + /* stream :: the file's input stream. */ + /* */ + typedef struct TT_NameTableRec_ + { + FT_UShort format; + FT_UInt numNameRecords; + FT_UInt storageOffset; + TT_NameEntryRec* names; + FT_Stream stream; + + } TT_NameTableRec, *TT_NameTable; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** OPTIONAL TRUETYPE/OPENTYPE TABLES DEFINITIONS ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_GaspRangeRec */ + /* */ + /* <Description> */ + /* A tiny structure used to model a gasp range according to the */ + /* TrueType specification. */ + /* */ + /* <Fields> */ + /* maxPPEM :: The maximum ppem value to which `gaspFlag' applies. */ + /* */ + /* gaspFlag :: A flag describing the grid-fitting and anti-aliasing */ + /* modes to be used. */ + /* */ + typedef struct TT_GaspRangeRec_ + { + FT_UShort maxPPEM; + FT_UShort gaspFlag; + + } TT_GaspRangeRec, *TT_GaspRange; + + +#define TT_GASP_GRIDFIT 0x01 +#define TT_GASP_DOGRAY 0x02 + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_GaspRec */ + /* */ + /* <Description> */ + /* A structure modeling the TrueType `gasp' table used to specify */ + /* grid-fitting and anti-aliasing behaviour. */ + /* */ + /* <Fields> */ + /* version :: The version number. */ + /* */ + /* numRanges :: The number of gasp ranges in table. */ + /* */ + /* gaspRanges :: An array of gasp ranges. */ + /* */ + typedef struct TT_Gasp_ + { + FT_UShort version; + FT_UShort numRanges; + TT_GaspRange gaspRanges; + + } TT_GaspRec; + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_HdmxEntryRec */ + /* */ + /* <Description> */ + /* A small structure used to model the pre-computed widths of a given */ + /* size. They are found in the `hdmx' table. */ + /* */ + /* <Fields> */ + /* ppem :: The pixels per EM value at which these metrics apply. */ + /* */ + /* max_width :: The maximum advance width for this metric. */ + /* */ + /* widths :: An array of widths. Note: These are 8-bit bytes. */ + /* */ + typedef struct TT_HdmxEntryRec_ + { + FT_Byte ppem; + FT_Byte max_width; + FT_Byte* widths; + + } TT_HdmxEntryRec, *TT_HdmxEntry; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_HdmxRec */ + /* */ + /* <Description> */ + /* A structure used to model the `hdmx' table, which contains */ + /* pre-computed widths for a set of given sizes/dimensions. */ + /* */ + /* <Fields> */ + /* version :: The version number. */ + /* */ + /* num_records :: The number of hdmx records. */ + /* */ + /* records :: An array of hdmx records. */ + /* */ + typedef struct TT_HdmxRec_ + { + FT_UShort version; + FT_Short num_records; + TT_HdmxEntry records; + + } TT_HdmxRec, *TT_Hdmx; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_Kern0_PairRec */ + /* */ + /* <Description> */ + /* A structure used to model a kerning pair for the kerning table */ + /* format 0. The engine now loads this table if it finds one in the */ + /* font file. */ + /* */ + /* <Fields> */ + /* left :: The index of the left glyph in pair. */ + /* */ + /* right :: The index of the right glyph in pair. */ + /* */ + /* value :: The kerning distance. A positive value spaces the */ + /* glyphs, a negative one makes them closer. */ + /* */ + typedef struct TT_Kern0_PairRec_ + { + FT_UShort left; /* index of left glyph in pair */ + FT_UShort right; /* index of right glyph in pair */ + FT_FWord value; /* kerning value */ + + } TT_Kern0_PairRec, *TT_Kern0_Pair; + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** EMBEDDED BITMAPS SUPPORT ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_MetricsRec */ + /* */ + /* <Description> */ + /* A structure used to hold the big metrics of a given glyph bitmap */ + /* in a TrueType or OpenType font. These are usually found in the */ + /* `EBDT' (Microsoft) or `bloc' (Apple) table. */ + /* */ + /* <Fields> */ + /* height :: The glyph height in pixels. */ + /* */ + /* width :: The glyph width in pixels. */ + /* */ + /* horiBearingX :: The horizontal left bearing. */ + /* */ + /* horiBearingY :: The horizontal top bearing. */ + /* */ + /* horiAdvance :: The horizontal advance. */ + /* */ + /* vertBearingX :: The vertical left bearing. */ + /* */ + /* vertBearingY :: The vertical top bearing. */ + /* */ + /* vertAdvance :: The vertical advance. */ + /* */ + typedef struct TT_SBit_MetricsRec_ + { + FT_Byte height; + FT_Byte width; + + FT_Char horiBearingX; + FT_Char horiBearingY; + FT_Byte horiAdvance; + + FT_Char vertBearingX; + FT_Char vertBearingY; + FT_Byte vertAdvance; + + } TT_SBit_MetricsRec, *TT_SBit_Metrics; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_SmallMetricsRec */ + /* */ + /* <Description> */ + /* A structure used to hold the small metrics of a given glyph bitmap */ + /* in a TrueType or OpenType font. These are usually found in the */ + /* `EBDT' (Microsoft) or the `bdat' (Apple) table. */ + /* */ + /* <Fields> */ + /* height :: The glyph height in pixels. */ + /* */ + /* width :: The glyph width in pixels. */ + /* */ + /* bearingX :: The left-side bearing. */ + /* */ + /* bearingY :: The top-side bearing. */ + /* */ + /* advance :: The advance width or height. */ + /* */ + typedef struct TT_SBit_Small_Metrics_ + { + FT_Byte height; + FT_Byte width; + + FT_Char bearingX; + FT_Char bearingY; + FT_Byte advance; + + } TT_SBit_SmallMetricsRec, *TT_SBit_SmallMetrics; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_LineMetricsRec */ + /* */ + /* <Description> */ + /* A structure used to describe the text line metrics of a given */ + /* bitmap strike, for either a horizontal or vertical layout. */ + /* */ + /* <Fields> */ + /* ascender :: The ascender in pixels. */ + /* */ + /* descender :: The descender in pixels. */ + /* */ + /* max_width :: The maximum glyph width in pixels. */ + /* */ + /* caret_slope_enumerator :: Rise of the caret slope, typically set */ + /* to 1 for non-italic fonts. */ + /* */ + /* caret_slope_denominator :: Rise of the caret slope, typically set */ + /* to 0 for non-italic fonts. */ + /* */ + /* caret_offset :: Offset in pixels to move the caret for */ + /* proper positioning. */ + /* */ + /* min_origin_SB :: Minimum of horiBearingX (resp. */ + /* vertBearingY). */ + /* min_advance_SB :: Minimum of */ + /* */ + /* horizontal advance - */ + /* ( horiBearingX + width ) */ + /* */ + /* resp. */ + /* */ + /* vertical advance - */ + /* ( vertBearingY + height ) */ + /* */ + /* max_before_BL :: Maximum of horiBearingY (resp. */ + /* vertBearingY). */ + /* */ + /* min_after_BL :: Minimum of */ + /* */ + /* horiBearingY - height */ + /* */ + /* resp. */ + /* */ + /* vertBearingX - width */ + /* */ + /* pads :: Unused (to make the size of the record */ + /* a multiple of 32 bits. */ + /* */ + typedef struct TT_SBit_LineMetricsRec_ + { + FT_Char ascender; + FT_Char descender; + FT_Byte max_width; + FT_Char caret_slope_numerator; + FT_Char caret_slope_denominator; + FT_Char caret_offset; + FT_Char min_origin_SB; + FT_Char min_advance_SB; + FT_Char max_before_BL; + FT_Char min_after_BL; + FT_Char pads[2]; + + } TT_SBit_LineMetricsRec, *TT_SBit_LineMetrics; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_RangeRec */ + /* */ + /* <Description> */ + /* A TrueType/OpenType subIndexTable as defined in the `EBLC' */ + /* (Microsoft) or `bloc' (Apple) tables. */ + /* */ + /* <Fields> */ + /* first_glyph :: The first glyph index in the range. */ + /* */ + /* last_glyph :: The last glyph index in the range. */ + /* */ + /* index_format :: The format of index table. Valid values are 1 */ + /* to 5. */ + /* */ + /* image_format :: The format of `EBDT' image data. */ + /* */ + /* image_offset :: The offset to image data in `EBDT'. */ + /* */ + /* image_size :: For index formats 2 and 5. This is the size in */ + /* bytes of each glyph bitmap. */ + /* */ + /* big_metrics :: For index formats 2 and 5. This is the big */ + /* metrics for each glyph bitmap. */ + /* */ + /* num_glyphs :: For index formats 4 and 5. This is the number of */ + /* glyphs in the code array. */ + /* */ + /* glyph_offsets :: For index formats 1 and 3. */ + /* */ + /* glyph_codes :: For index formats 4 and 5. */ + /* */ + /* table_offset :: The offset of the index table in the `EBLC' */ + /* table. Only used during strike loading. */ + /* */ + typedef struct TT_SBit_RangeRec_ + { + FT_UShort first_glyph; + FT_UShort last_glyph; + + FT_UShort index_format; + FT_UShort image_format; + FT_ULong image_offset; + + FT_ULong image_size; + TT_SBit_MetricsRec metrics; + FT_ULong num_glyphs; + + FT_ULong* glyph_offsets; + FT_UShort* glyph_codes; + + FT_ULong table_offset; + + } TT_SBit_RangeRec, *TT_SBit_Range; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_StrikeRec */ + /* */ + /* <Description> */ + /* A structure used describe a given bitmap strike in the `EBLC' */ + /* (Microsoft) or `bloc' (Apple) tables. */ + /* */ + /* <Fields> */ + /* num_index_ranges :: The number of index ranges. */ + /* */ + /* index_ranges :: An array of glyph index ranges. */ + /* */ + /* color_ref :: Unused. `color_ref' is put in for future */ + /* enhancements, but these fields are already */ + /* in use by other platforms (e.g. Newton). */ + /* For details, please see */ + /* */ + /* http://fonts.apple.com/ */ + /* TTRefMan/RM06/Chap6bloc.html */ + /* */ + /* hori :: The line metrics for horizontal layouts. */ + /* */ + /* vert :: The line metrics for vertical layouts. */ + /* */ + /* start_glyph :: The lowest glyph index for this strike. */ + /* */ + /* end_glyph :: The highest glyph index for this strike. */ + /* */ + /* x_ppem :: The number of horizontal pixels per EM. */ + /* */ + /* y_ppem :: The number of vertical pixels per EM. */ + /* */ + /* bit_depth :: The bit depth. Valid values are 1, 2, 4, */ + /* and 8. */ + /* */ + /* flags :: Is this a vertical or horizontal strike? For */ + /* details, please see */ + /* */ + /* http://fonts.apple.com/ */ + /* TTRefMan/RM06/Chap6bloc.html */ + /* */ + typedef struct TT_SBit_StrikeRec_ + { + FT_Int num_ranges; + TT_SBit_Range sbit_ranges; + FT_ULong ranges_offset; + + FT_ULong color_ref; + + TT_SBit_LineMetricsRec hori; + TT_SBit_LineMetricsRec vert; + + FT_UShort start_glyph; + FT_UShort end_glyph; + + FT_Byte x_ppem; + FT_Byte y_ppem; + + FT_Byte bit_depth; + FT_Char flags; + + } TT_SBit_StrikeRec, *TT_SBit_Strike; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_ComponentRec */ + /* */ + /* <Description> */ + /* A simple structure to describe a compound sbit element. */ + /* */ + /* <Fields> */ + /* glyph_code :: The element's glyph index. */ + /* */ + /* x_offset :: The element's left bearing. */ + /* */ + /* y_offset :: The element's top bearing. */ + /* */ + typedef struct TT_SBit_ComponentRec_ + { + FT_UShort glyph_code; + FT_Char x_offset; + FT_Char y_offset; + + } TT_SBit_ComponentRec, *TT_SBit_Component; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_SBit_ScaleRec */ + /* */ + /* <Description> */ + /* A structure used describe a given bitmap scaling table, as defined */ + /* in the `EBSC' table. */ + /* */ + /* <Fields> */ + /* hori :: The horizontal line metrics. */ + /* */ + /* vert :: The vertical line metrics. */ + /* */ + /* x_ppem :: The number of horizontal pixels per EM. */ + /* */ + /* y_ppem :: The number of vertical pixels per EM. */ + /* */ + /* x_ppem_substitute :: Substitution x_ppem value. */ + /* */ + /* y_ppem_substitute :: Substitution y_ppem value. */ + /* */ + typedef struct TT_SBit_ScaleRec_ + { + TT_SBit_LineMetricsRec hori; + TT_SBit_LineMetricsRec vert; + + FT_Byte x_ppem; + FT_Byte y_ppem; + + FT_Byte x_ppem_substitute; + FT_Byte y_ppem_substitute; + + } TT_SBit_ScaleRec, *TT_SBit_Scale; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** POSTSCRIPT GLYPH NAMES SUPPORT ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_Post_20Rec */ + /* */ + /* <Description> */ + /* Postscript names sub-table, format 2.0. Stores the PS name of */ + /* each glyph in the font face. */ + /* */ + /* <Fields> */ + /* num_glyphs :: The number of named glyphs in the table. */ + /* */ + /* num_names :: The number of PS names stored in the table. */ + /* */ + /* glyph_indices :: The indices of the glyphs in the names arrays. */ + /* */ + /* glyph_names :: The PS names not in Mac Encoding. */ + /* */ + typedef struct TT_Post_20Rec_ + { + FT_UShort num_glyphs; + FT_UShort num_names; + FT_UShort* glyph_indices; + FT_Char** glyph_names; + + } TT_Post_20Rec, *TT_Post_20; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_Post_25Rec */ + /* */ + /* <Description> */ + /* Postscript names sub-table, format 2.5. Stores the PS name of */ + /* each glyph in the font face. */ + /* */ + /* <Fields> */ + /* num_glyphs :: The number of glyphs in the table. */ + /* */ + /* offsets :: An array of signed offsets in a normal Mac */ + /* Postscript name encoding. */ + /* */ + typedef struct TT_Post_25_ + { + FT_UShort num_glyphs; + FT_Char* offsets; + + } TT_Post_25Rec, *TT_Post_25; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_Post_NamesRec */ + /* */ + /* <Description> */ + /* Postscript names table, either format 2.0 or 2.5. */ + /* */ + /* <Fields> */ + /* loaded :: A flag to indicate whether the PS names are loaded. */ + /* */ + /* format_20 :: The sub-table used for format 2.0. */ + /* */ + /* format_25 :: The sub-table used for format 2.5. */ + /* */ + typedef struct TT_Post_NamesRec_ + { + FT_Bool loaded; + + union + { + TT_Post_20Rec format_20; + TT_Post_25Rec format_25; + + } names; + + } TT_Post_NamesRec, *TT_Post_Names; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** GX VARIATION TABLE SUPPORT ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + typedef struct GX_BlendRec_ *GX_Blend; +#endif + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** EMBEDDED BDF PROPERTIES TABLE SUPPORT ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * These types are used to support a `BDF ' table that isn't part of the + * official TrueType specification. It is mainly used in SFNT-based + * bitmap fonts that were generated from a set of BDF fonts. + * + * The format of the table is as follows. + * + * USHORT version `BDF ' table version number, should be 0x0001. + * USHORT strikeCount Number of strikes (bitmap sizes) in this table. + * ULONG stringTable Offset (from start of BDF table) to string + * table. + * + * This is followed by an array of `strikeCount' descriptors, having the + * following format. + * + * USHORT ppem Vertical pixels per EM for this strike. + * USHORT numItems Number of items for this strike (properties and + * atoms). Maximum is 255. + * + * This array in turn is followed by `strikeCount' value sets. Each + * `value set' is an array of `numItems' items with the following format. + * + * ULONG item_name Offset in string table to item name. + * USHORT item_type The item type. Possible values are + * 0 => string (e.g., COMMENT) + * 1 => atom (e.g., FONT or even SIZE) + * 2 => int32 + * 3 => uint32 + * 0x10 => A flag to indicate a properties. This + * is ORed with the above values. + * ULONG item_value For strings => Offset into string table without + * the corresponding double quotes. + * For atoms => Offset into string table. + * For integers => Direct value. + * + * All strings in the string table consist of bytes and are + * zero-terminated. + * + */ + +#ifdef TT_CONFIG_OPTION_BDF + + typedef struct TT_BDFRec_ + { + FT_Byte* table; + FT_Byte* table_end; + FT_Byte* strings; + FT_ULong strings_size; + FT_UInt num_strikes; + FT_Bool loaded; + + } TT_BDFRec, *TT_BDF; + +#endif /* TT_CONFIG_OPTION_BDF */ + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** ***/ + /*** ORIGINAL TT_FACE CLASS DEFINITION ***/ + /*** ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This structure/class is defined here because it is common to the */ + /* following formats: TTF, OpenType-TT, and OpenType-CFF. */ + /* */ + /* Note, however, that the classes TT_Size and TT_GlyphSlot are not */ + /* shared between font drivers, and are thus defined in `ttobjs.h'. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* TT_Face */ + /* */ + /* <Description> */ + /* A handle to a TrueType face/font object. A TT_Face encapsulates */ + /* the resolution and scaling independent parts of a TrueType font */ + /* resource. */ + /* */ + /* <Note> */ + /* The TT_Face structure is also used as a `parent class' for the */ + /* OpenType-CFF class (T2_Face). */ + /* */ + typedef struct TT_FaceRec_* TT_Face; + + + /* a function type used for the truetype bytecode interpreter hooks */ + typedef FT_Error + (*TT_Interpreter)( void* exec_context ); + + /* forward declaration */ + typedef struct TT_LoaderRec_* TT_Loader; + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Loader_GotoTableFunc */ + /* */ + /* <Description> */ + /* Seeks a stream to the start of a given TrueType table. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* tag :: A 4-byte tag used to name the table. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Output> */ + /* length :: The length of the table in bytes. Set to 0 if not */ + /* needed. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be at the font file's origin. */ + /* */ + typedef FT_Error + (*TT_Loader_GotoTableFunc)( TT_Face face, + FT_ULong tag, + FT_Stream stream, + FT_ULong* length ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Loader_StartGlyphFunc */ + /* */ + /* <Description> */ + /* Seeks a stream to the start of a given glyph element, and opens a */ + /* frame for it. */ + /* */ + /* <Input> */ + /* loader :: The current TrueType glyph loader object. */ + /* */ + /* glyph index :: The index of the glyph to access. */ + /* */ + /* offset :: The offset of the glyph according to the */ + /* `locations' table. */ + /* */ + /* byte_count :: The size of the frame in bytes. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* This function is normally equivalent to FT_STREAM_SEEK(offset) */ + /* followed by FT_FRAME_ENTER(byte_count) with the loader's stream, */ + /* but alternative formats (e.g. compressed ones) might use something */ + /* different. */ + /* */ + typedef FT_Error + (*TT_Loader_StartGlyphFunc)( TT_Loader loader, + FT_UInt glyph_index, + FT_ULong offset, + FT_UInt byte_count ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Loader_ReadGlyphFunc */ + /* */ + /* <Description> */ + /* Reads one glyph element (its header, a simple glyph, or a */ + /* composite) from the loader's current stream frame. */ + /* */ + /* <Input> */ + /* loader :: The current TrueType glyph loader object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + typedef FT_Error + (*TT_Loader_ReadGlyphFunc)( TT_Loader loader ); + + + /*************************************************************************/ + /* */ + /* <FuncType> */ + /* TT_Loader_EndGlyphFunc */ + /* */ + /* <Description> */ + /* Closes the current loader stream frame for the glyph. */ + /* */ + /* <Input> */ + /* loader :: The current TrueType glyph loader object. */ + /* */ + typedef void + (*TT_Loader_EndGlyphFunc)( TT_Loader loader ); + + + /*************************************************************************/ + /* */ + /* TrueType Face Type */ + /* */ + /* <Struct> */ + /* TT_Face */ + /* */ + /* <Description> */ + /* The TrueType face class. These objects model the resolution and */ + /* point-size independent data found in a TrueType font file. */ + /* */ + /* <Fields> */ + /* root :: The base FT_Face structure, managed by the */ + /* base layer. */ + /* */ + /* ttc_header :: The TrueType collection header, used when */ + /* the file is a `ttc' rather than a `ttf'. */ + /* For ordinary font files, the field */ + /* `ttc_header.count' is set to 0. */ + /* */ + /* format_tag :: The font format tag. */ + /* */ + /* num_tables :: The number of TrueType tables in this font */ + /* file. */ + /* */ + /* dir_tables :: The directory of TrueType tables for this */ + /* font file. */ + /* */ + /* header :: The font's font header (`head' table). */ + /* Read on font opening. */ + /* */ + /* horizontal :: The font's horizontal header (`hhea' */ + /* table). This field also contains the */ + /* associated horizontal metrics table */ + /* (`hmtx'). */ + /* */ + /* max_profile :: The font's maximum profile table. Read on */ + /* font opening. Note that some maximum */ + /* values cannot be taken directly from this */ + /* table. We thus define additional fields */ + /* below to hold the computed maxima. */ + /* */ + /* vertical_info :: A boolean which is set when the font file */ + /* contains vertical metrics. If not, the */ + /* value of the `vertical' field is */ + /* undefined. */ + /* */ + /* vertical :: The font's vertical header (`vhea' table). */ + /* This field also contains the associated */ + /* vertical metrics table (`vmtx'), if found. */ + /* IMPORTANT: The contents of this field is */ + /* undefined if the `verticalInfo' field is */ + /* unset. */ + /* */ + /* num_names :: The number of name records within this */ + /* TrueType font. */ + /* */ + /* name_table :: The table of name records (`name'). */ + /* */ + /* os2 :: The font's OS/2 table (`OS/2'). */ + /* */ + /* postscript :: The font's PostScript table (`post' */ + /* table). The PostScript glyph names are */ + /* not loaded by the driver on face opening. */ + /* See the `ttpost' module for more details. */ + /* */ + /* cmap_table :: Address of the face's `cmap' SFNT table */ + /* in memory (it's an extracted frame). */ + /* */ + /* cmap_size :: The size in bytes of the `cmap_table' */ + /* described above. */ + /* */ + /* goto_table :: A function called by each TrueType table */ + /* loader to position a stream's cursor to */ + /* the start of a given table according to */ + /* its tag. It defaults to TT_Goto_Face but */ + /* can be different for strange formats (e.g. */ + /* Type 42). */ + /* */ + /* access_glyph_frame :: A function used to access the frame of a */ + /* given glyph within the face's font file. */ + /* */ + /* forget_glyph_frame :: A function used to forget the frame of a */ + /* given glyph when all data has been loaded. */ + /* */ + /* read_glyph_header :: A function used to read a glyph header. */ + /* It must be called between an `access' and */ + /* `forget'. */ + /* */ + /* read_simple_glyph :: A function used to read a simple glyph. */ + /* It must be called after the header was */ + /* read, and before the `forget'. */ + /* */ + /* read_composite_glyph :: A function used to read a composite glyph. */ + /* It must be called after the header was */ + /* read, and before the `forget'. */ + /* */ + /* sfnt :: A pointer to the SFNT service. */ + /* */ + /* psnames :: A pointer to the PostScript names service. */ + /* */ + /* hdmx :: The face's horizontal device metrics */ + /* (`hdmx' table). This table is optional in */ + /* TrueType/OpenType fonts. */ + /* */ + /* gasp :: The grid-fitting and scaling properties */ + /* table (`gasp'). This table is optional in */ + /* TrueType/OpenType fonts. */ + /* */ + /* pclt :: The `pclt' SFNT table. */ + /* */ + /* num_sbit_strikes :: The number of sbit strikes, i.e., bitmap */ + /* sizes, embedded in this font. */ + /* */ + /* sbit_strikes :: An array of sbit strikes embedded in this */ + /* font. This table is optional in a */ + /* TrueType/OpenType font. */ + /* */ + /* num_sbit_scales :: The number of sbit scales for this font. */ + /* */ + /* sbit_scales :: Array of sbit scales embedded in this */ + /* font. This table is optional in a */ + /* TrueType/OpenType font. */ + /* */ + /* postscript_names :: A table used to store the Postscript names */ + /* of the glyphs for this font. See the */ + /* file `ttconfig.h' for comments on the */ + /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES option. */ + /* */ + /* num_locations :: The number of glyph locations in this */ + /* TrueType file. This should be */ + /* identical to the number of glyphs. */ + /* Ignored for Type 2 fonts. */ + /* */ + /* glyph_locations :: An array of longs. These are offsets to */ + /* glyph data within the `glyf' table. */ + /* Ignored for Type 2 font faces. */ + /* */ + /* glyf_len :: The length of the `glyf' table. Needed */ + /* for malformed `loca' tables. */ + /* */ + /* font_program_size :: Size in bytecodes of the face's font */ + /* program. 0 if none defined. Ignored for */ + /* Type 2 fonts. */ + /* */ + /* font_program :: The face's font program (bytecode stream) */ + /* executed at load time, also used during */ + /* glyph rendering. Comes from the `fpgm' */ + /* table. Ignored for Type 2 font fonts. */ + /* */ + /* cvt_program_size :: The size in bytecodes of the face's cvt */ + /* program. Ignored for Type 2 fonts. */ + /* */ + /* cvt_program :: The face's cvt program (bytecode stream) */ + /* executed each time an instance/size is */ + /* changed/reset. Comes from the `prep' */ + /* table. Ignored for Type 2 fonts. */ + /* */ + /* cvt_size :: Size of the control value table (in */ + /* entries). Ignored for Type 2 fonts. */ + /* */ + /* cvt :: The face's original control value table. */ + /* Coordinates are expressed in unscaled font */ + /* units. Comes from the `cvt ' table. */ + /* Ignored for Type 2 fonts. */ + /* */ + /* num_kern_pairs :: The number of kerning pairs present in the */ + /* font file. The engine only loads the */ + /* first horizontal format 0 kern table it */ + /* finds in the font file. Ignored for */ + /* Type 2 fonts. */ + /* */ + /* kern_table_index :: The index of the kerning table in the font */ + /* kerning directory. Ignored for Type 2 */ + /* fonts. */ + /* */ + /* interpreter :: A pointer to the TrueType bytecode */ + /* interpreters field is also used to hook */ + /* the debugger in `ttdebug'. */ + /* */ + /* unpatented_hinting :: If true, use only unpatented methods in */ + /* the bytecode interpreter. */ + /* */ + /* doblend :: A boolean which is set if the font should */ + /* be blended (this is for GX var). */ + /* */ + /* blend :: Contains the data needed to control GX */ + /* variation tables (rather like Multiple */ + /* Master data). */ + /* */ + /* extra :: Reserved for third-party font drivers. */ + /* */ + /* postscript_name :: The PS name of the font. Used by the */ + /* postscript name service. */ + /* */ + typedef struct TT_FaceRec_ + { + FT_FaceRec root; + + TTC_HeaderRec ttc_header; + + FT_ULong format_tag; + FT_UShort num_tables; + TT_Table dir_tables; + + TT_Header header; /* TrueType header table */ + TT_HoriHeader horizontal; /* TrueType horizontal header */ + + TT_MaxProfile max_profile; +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_ULong max_components; /* stubbed to 0 */ +#endif + + FT_Bool vertical_info; + TT_VertHeader vertical; /* TT Vertical header, if present */ + + FT_UShort num_names; /* number of name records */ + TT_NameTableRec name_table; /* name table */ + + TT_OS2 os2; /* TrueType OS/2 table */ + TT_Postscript postscript; /* TrueType Postscript table */ + + FT_Byte* cmap_table; /* extracted `cmap' table */ + FT_ULong cmap_size; + + TT_Loader_GotoTableFunc goto_table; + + TT_Loader_StartGlyphFunc access_glyph_frame; + TT_Loader_EndGlyphFunc forget_glyph_frame; + TT_Loader_ReadGlyphFunc read_glyph_header; + TT_Loader_ReadGlyphFunc read_simple_glyph; + TT_Loader_ReadGlyphFunc read_composite_glyph; + + /* a typeless pointer to the SFNT_Interface table used to load */ + /* the basic TrueType tables in the face object */ + void* sfnt; + + /* a typeless pointer to the FT_Service_PsCMapsRec table used to */ + /* handle glyph names <-> unicode & Mac values */ + void* psnames; + + + /***********************************************************************/ + /* */ + /* Optional TrueType/OpenType tables */ + /* */ + /***********************************************************************/ + + /* horizontal device metrics */ +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + TT_HdmxRec hdmx; +#endif + + /* grid-fitting and scaling table */ + TT_GaspRec gasp; /* the `gasp' table */ + + /* PCL 5 table */ + TT_PCLT pclt; + + /* embedded bitmaps support */ +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_ULong num_sbit_strikes; + TT_SBit_Strike sbit_strikes; +#endif + + FT_ULong num_sbit_scales; + TT_SBit_Scale sbit_scales; + + /* postscript names table */ + TT_Post_NamesRec postscript_names; + + + /***********************************************************************/ + /* */ + /* TrueType-specific fields (ignored by the OTF-Type2 driver) */ + /* */ + /***********************************************************************/ + + /* the glyph locations */ +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_UShort num_locations_stub; + FT_Long* glyph_locations_stub; +#endif + + /* the font program, if any */ + FT_ULong font_program_size; + FT_Byte* font_program; + + /* the cvt program, if any */ + FT_ULong cvt_program_size; + FT_Byte* cvt_program; + + /* the original, unscaled, control value table */ + FT_ULong cvt_size; + FT_Short* cvt; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + /* the format 0 kerning table, if any */ + FT_Int num_kern_pairs; + FT_Int kern_table_index; + TT_Kern0_Pair kern_pairs; +#endif + + /* A pointer to the bytecode interpreter to use. This is also */ + /* used to hook the debugger for the `ttdebug' utility. */ + TT_Interpreter interpreter; + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + /* Use unpatented hinting only. */ + FT_Bool unpatented_hinting; +#endif + + /***********************************************************************/ + /* */ + /* Other tables or fields. This is used by derivative formats like */ + /* OpenType. */ + /* */ + /***********************************************************************/ + + FT_Generic extra; + + const char* postscript_name; + + /* since version 2.1.8, but was originally placed after */ + /* `glyph_locations_stub' */ + FT_ULong glyf_len; + + /* since version 2.1.8, but was originally placed before `extra' */ +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_Bool doblend; + GX_Blend blend; +#endif + + /* since version 2.2 */ + + FT_Byte* horz_metrics; + FT_ULong horz_metrics_size; + + FT_Byte* vert_metrics; + FT_ULong vert_metrics_size; + + FT_ULong num_locations; /* in broken TTF, gid > 0xFFFF */ + FT_Byte* glyph_locations; + + FT_Byte* hdmx_table; + FT_ULong hdmx_table_size; + FT_UInt hdmx_record_count; + FT_ULong hdmx_record_size; + FT_Byte* hdmx_record_sizes; + + FT_Byte* sbit_table; + FT_ULong sbit_table_size; + FT_UInt sbit_num_strikes; + + FT_Byte* kern_table; + FT_ULong kern_table_size; + FT_UInt num_kern_tables; + FT_UInt32 kern_avail_bits; + FT_UInt32 kern_order_bits; + +#ifdef TT_CONFIG_OPTION_BDF + TT_BDFRec bdf; +#endif /* TT_CONFIG_OPTION_BDF */ + + /* since 2.3.0 */ + FT_ULong horz_metrics_offset; + FT_ULong vert_metrics_offset; + + } TT_FaceRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_GlyphZoneRec */ + /* */ + /* <Description> */ + /* A glyph zone is used to load, scale and hint glyph outline */ + /* coordinates. */ + /* */ + /* <Fields> */ + /* memory :: A handle to the memory manager. */ + /* */ + /* max_points :: The maximal size in points of the zone. */ + /* */ + /* max_contours :: Max size in links contours of the zone. */ + /* */ + /* n_points :: The current number of points in the zone. */ + /* */ + /* n_contours :: The current number of contours in the zone. */ + /* */ + /* org :: The original glyph coordinates (font */ + /* units/scaled). */ + /* */ + /* cur :: The current glyph coordinates (scaled/hinted). */ + /* */ + /* tags :: The point control tags. */ + /* */ + /* contours :: The contours end points. */ + /* */ + /* first_point :: Offset of the current subglyph's first point. */ + /* */ + typedef struct TT_GlyphZoneRec_ + { + FT_Memory memory; + FT_UShort max_points; + FT_UShort max_contours; + FT_UShort n_points; /* number of points in zone */ + FT_Short n_contours; /* number of contours */ + + FT_Vector* org; /* original point coordinates */ + FT_Vector* cur; /* current point coordinates */ + FT_Vector* orus; /* original (unscaled) point coordinates */ + + FT_Byte* tags; /* current touch flags */ + FT_UShort* contours; /* contour end points */ + + FT_UShort first_point; /* offset of first (#0) point */ + + } TT_GlyphZoneRec, *TT_GlyphZone; + + + /* handle to execution context */ + typedef struct TT_ExecContextRec_* TT_ExecContext; + + /* glyph loader structure */ + typedef struct TT_LoaderRec_ + { + FT_Face face; + FT_Size size; + FT_GlyphSlot glyph; + FT_GlyphLoader gloader; + + FT_ULong load_flags; + FT_UInt glyph_index; + + FT_Stream stream; + FT_Int byte_len; + + FT_Short n_contours; + FT_BBox bbox; + FT_Int left_bearing; + FT_Int advance; + FT_Int linear; + FT_Bool linear_def; + FT_Bool preserve_pps; + FT_Vector pp1; + FT_Vector pp2; + + FT_ULong glyf_offset; + + /* the zone where we load our glyphs */ + TT_GlyphZoneRec base; + TT_GlyphZoneRec zone; + + TT_ExecContext exec; + FT_Byte* instructions; + FT_ULong ins_pos; + + /* for possible extensibility in other formats */ + void* other; + + /* since version 2.1.8 */ + FT_Int top_bearing; + FT_Int vadvance; + FT_Vector pp3; + FT_Vector pp4; + + /* since version 2.2.1 */ + FT_Byte* cursor; + FT_Byte* limit; + + } TT_LoaderRec; + + +FT_END_HEADER + +#endif /* __TTTYPES_H__ */ + + +/* END */ diff --git a/include/freetype/t1tables.h b/include/freetype/t1tables.h new file mode 100644 index 0000000..a14255e --- /dev/null +++ b/include/freetype/t1tables.h @@ -0,0 +1,662 @@ +/***************************************************************************/ +/* */ +/* t1tables.h */ +/* */ +/* Basic Type 1/Type 2 tables definitions and interface (specification */ +/* only). */ +/* */ +/* Copyright 1996-2004, 2006, 2008, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1TABLES_H__ +#define __T1TABLES_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* type1_tables */ + /* */ + /* <Title> */ + /* Type 1 Tables */ + /* */ + /* <Abstract> */ + /* Type~1 (PostScript) specific font tables. */ + /* */ + /* <Description> */ + /* This section contains the definition of Type 1-specific tables, */ + /* including structures related to other PostScript font formats. */ + /* */ + /*************************************************************************/ + + + /* Note that we separate font data in PS_FontInfoRec and PS_PrivateRec */ + /* structures in order to support Multiple Master fonts. */ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_FontInfoRec */ + /* */ + /* <Description> */ + /* A structure used to model a Type~1 or Type~2 FontInfo dictionary. */ + /* Note that for Multiple Master fonts, each instance has its own */ + /* FontInfo dictionary. */ + /* */ + typedef struct PS_FontInfoRec_ + { + FT_String* version; + FT_String* notice; + FT_String* full_name; + FT_String* family_name; + FT_String* weight; + FT_Long italic_angle; + FT_Bool is_fixed_pitch; + FT_Short underline_position; + FT_UShort underline_thickness; + + } PS_FontInfoRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_FontInfo */ + /* */ + /* <Description> */ + /* A handle to a @PS_FontInfoRec structure. */ + /* */ + typedef struct PS_FontInfoRec_* PS_FontInfo; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* T1_FontInfo */ + /* */ + /* <Description> */ + /* This type is equivalent to @PS_FontInfoRec. It is deprecated but */ + /* kept to maintain source compatibility between various versions of */ + /* FreeType. */ + /* */ + typedef PS_FontInfoRec T1_FontInfo; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_PrivateRec */ + /* */ + /* <Description> */ + /* A structure used to model a Type~1 or Type~2 private dictionary. */ + /* Note that for Multiple Master fonts, each instance has its own */ + /* Private dictionary. */ + /* */ + typedef struct PS_PrivateRec_ + { + FT_Int unique_id; + FT_Int lenIV; + + FT_Byte num_blue_values; + FT_Byte num_other_blues; + FT_Byte num_family_blues; + FT_Byte num_family_other_blues; + + FT_Short blue_values[14]; + FT_Short other_blues[10]; + + FT_Short family_blues [14]; + FT_Short family_other_blues[10]; + + FT_Fixed blue_scale; + FT_Int blue_shift; + FT_Int blue_fuzz; + + FT_UShort standard_width[1]; + FT_UShort standard_height[1]; + + FT_Byte num_snap_widths; + FT_Byte num_snap_heights; + FT_Bool force_bold; + FT_Bool round_stem_up; + + FT_Short snap_widths [13]; /* including std width */ + FT_Short snap_heights[13]; /* including std height */ + + FT_Fixed expansion_factor; + + FT_Long language_group; + FT_Long password; + + FT_Short min_feature[2]; + + } PS_PrivateRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* PS_Private */ + /* */ + /* <Description> */ + /* A handle to a @PS_PrivateRec structure. */ + /* */ + typedef struct PS_PrivateRec_* PS_Private; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* T1_Private */ + /* */ + /* <Description> */ + /* This type is equivalent to @PS_PrivateRec. It is deprecated but */ + /* kept to maintain source compatibility between various versions of */ + /* FreeType. */ + /* */ + typedef PS_PrivateRec T1_Private; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* T1_Blend_Flags */ + /* */ + /* <Description> */ + /* A set of flags used to indicate which fields are present in a */ + /* given blend dictionary (font info or private). Used to support */ + /* Multiple Masters fonts. */ + /* */ + typedef enum T1_Blend_Flags_ + { + /*# required fields in a FontInfo blend dictionary */ + T1_BLEND_UNDERLINE_POSITION = 0, + T1_BLEND_UNDERLINE_THICKNESS, + T1_BLEND_ITALIC_ANGLE, + + /*# required fields in a Private blend dictionary */ + T1_BLEND_BLUE_VALUES, + T1_BLEND_OTHER_BLUES, + T1_BLEND_STANDARD_WIDTH, + T1_BLEND_STANDARD_HEIGHT, + T1_BLEND_STEM_SNAP_WIDTHS, + T1_BLEND_STEM_SNAP_HEIGHTS, + T1_BLEND_BLUE_SCALE, + T1_BLEND_BLUE_SHIFT, + T1_BLEND_FAMILY_BLUES, + T1_BLEND_FAMILY_OTHER_BLUES, + T1_BLEND_FORCE_BOLD, + + /*# never remove */ + T1_BLEND_MAX + + } T1_Blend_Flags; + + /* */ + + + /*# backwards compatible definitions */ +#define t1_blend_underline_position T1_BLEND_UNDERLINE_POSITION +#define t1_blend_underline_thickness T1_BLEND_UNDERLINE_THICKNESS +#define t1_blend_italic_angle T1_BLEND_ITALIC_ANGLE +#define t1_blend_blue_values T1_BLEND_BLUE_VALUES +#define t1_blend_other_blues T1_BLEND_OTHER_BLUES +#define t1_blend_standard_widths T1_BLEND_STANDARD_WIDTH +#define t1_blend_standard_height T1_BLEND_STANDARD_HEIGHT +#define t1_blend_stem_snap_widths T1_BLEND_STEM_SNAP_WIDTHS +#define t1_blend_stem_snap_heights T1_BLEND_STEM_SNAP_HEIGHTS +#define t1_blend_blue_scale T1_BLEND_BLUE_SCALE +#define t1_blend_blue_shift T1_BLEND_BLUE_SHIFT +#define t1_blend_family_blues T1_BLEND_FAMILY_BLUES +#define t1_blend_family_other_blues T1_BLEND_FAMILY_OTHER_BLUES +#define t1_blend_force_bold T1_BLEND_FORCE_BOLD +#define t1_blend_max T1_BLEND_MAX + + + /* maximum number of Multiple Masters designs, as defined in the spec */ +#define T1_MAX_MM_DESIGNS 16 + + /* maximum number of Multiple Masters axes, as defined in the spec */ +#define T1_MAX_MM_AXIS 4 + + /* maximum number of elements in a design map */ +#define T1_MAX_MM_MAP_POINTS 20 + + + /* this structure is used to store the BlendDesignMap entry for an axis */ + typedef struct PS_DesignMap_ + { + FT_Byte num_points; + FT_Long* design_points; + FT_Fixed* blend_points; + + } PS_DesignMapRec, *PS_DesignMap; + + /* backwards-compatible definition */ + typedef PS_DesignMapRec T1_DesignMap; + + + typedef struct PS_BlendRec_ + { + FT_UInt num_designs; + FT_UInt num_axis; + + FT_String* axis_names[T1_MAX_MM_AXIS]; + FT_Fixed* design_pos[T1_MAX_MM_DESIGNS]; + PS_DesignMapRec design_map[T1_MAX_MM_AXIS]; + + FT_Fixed* weight_vector; + FT_Fixed* default_weight_vector; + + PS_FontInfo font_infos[T1_MAX_MM_DESIGNS + 1]; + PS_Private privates [T1_MAX_MM_DESIGNS + 1]; + + FT_ULong blend_bitflags; + + FT_BBox* bboxes [T1_MAX_MM_DESIGNS + 1]; + + /* since 2.3.0 */ + + /* undocumented, optional: the default design instance; */ + /* corresponds to default_weight_vector -- */ + /* num_default_design_vector == 0 means it is not present */ + /* in the font and associated metrics files */ + FT_UInt default_design_vector[T1_MAX_MM_DESIGNS]; + FT_UInt num_default_design_vector; + + } PS_BlendRec, *PS_Blend; + + + /* backwards-compatible definition */ + typedef PS_BlendRec T1_Blend; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CID_FaceDictRec */ + /* */ + /* <Description> */ + /* A structure used to represent data in a CID top-level dictionary. */ + /* */ + typedef struct CID_FaceDictRec_ + { + PS_PrivateRec private_dict; + + FT_UInt len_buildchar; + FT_Fixed forcebold_threshold; + FT_Pos stroke_width; + FT_Fixed expansion_factor; + + FT_Byte paint_type; + FT_Byte font_type; + FT_Matrix font_matrix; + FT_Vector font_offset; + + FT_UInt num_subrs; + FT_ULong subrmap_offset; + FT_Int sd_bytes; + + } CID_FaceDictRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CID_FaceDict */ + /* */ + /* <Description> */ + /* A handle to a @CID_FaceDictRec structure. */ + /* */ + typedef struct CID_FaceDictRec_* CID_FaceDict; + + /* */ + + + /* backwards-compatible definition */ + typedef CID_FaceDictRec CID_FontDict; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CID_FaceInfoRec */ + /* */ + /* <Description> */ + /* A structure used to represent CID Face information. */ + /* */ + typedef struct CID_FaceInfoRec_ + { + FT_String* cid_font_name; + FT_Fixed cid_version; + FT_Int cid_font_type; + + FT_String* registry; + FT_String* ordering; + FT_Int supplement; + + PS_FontInfoRec font_info; + FT_BBox font_bbox; + FT_ULong uid_base; + + FT_Int num_xuid; + FT_ULong xuid[16]; + + FT_ULong cidmap_offset; + FT_Int fd_bytes; + FT_Int gd_bytes; + FT_ULong cid_count; + + FT_Int num_dicts; + CID_FaceDict font_dicts; + + FT_ULong data_offset; + + } CID_FaceInfoRec; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CID_FaceInfo */ + /* */ + /* <Description> */ + /* A handle to a @CID_FaceInfoRec structure. */ + /* */ + typedef struct CID_FaceInfoRec_* CID_FaceInfo; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CID_Info */ + /* */ + /* <Description> */ + /* This type is equivalent to @CID_FaceInfoRec. It is deprecated but */ + /* kept to maintain source compatibility between various versions of */ + /* FreeType. */ + /* */ + typedef CID_FaceInfoRec CID_Info; + + + /************************************************************************ + * + * @function: + * FT_Has_PS_Glyph_Names + * + * @description: + * Return true if a given face provides reliable PostScript glyph + * names. This is similar to using the @FT_HAS_GLYPH_NAMES macro, + * except that certain fonts (mostly TrueType) contain incorrect + * glyph name tables. + * + * When this function returns true, the caller is sure that the glyph + * names returned by @FT_Get_Glyph_Name are reliable. + * + * @input: + * face :: + * face handle + * + * @return: + * Boolean. True if glyph names are reliable. + * + */ + FT_EXPORT( FT_Int ) + FT_Has_PS_Glyph_Names( FT_Face face ); + + + /************************************************************************ + * + * @function: + * FT_Get_PS_Font_Info + * + * @description: + * Retrieve the @PS_FontInfoRec structure corresponding to a given + * PostScript font. + * + * @input: + * face :: + * PostScript face handle. + * + * @output: + * afont_info :: + * Output font info structure pointer. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The string pointers within the font info structure are owned by + * the face and don't need to be freed by the caller. + * + * If the font's format is not PostScript-based, this function will + * return the `FT_Err_Invalid_Argument' error code. + * + */ + FT_EXPORT( FT_Error ) + FT_Get_PS_Font_Info( FT_Face face, + PS_FontInfo afont_info ); + + + /************************************************************************ + * + * @function: + * FT_Get_PS_Font_Private + * + * @description: + * Retrieve the @PS_PrivateRec structure corresponding to a given + * PostScript font. + * + * @input: + * face :: + * PostScript face handle. + * + * @output: + * afont_private :: + * Output private dictionary structure pointer. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * The string pointers within the @PS_PrivateRec structure are owned by + * the face and don't need to be freed by the caller. + * + * If the font's format is not PostScript-based, this function returns + * the `FT_Err_Invalid_Argument' error code. + * + */ + FT_EXPORT( FT_Error ) + FT_Get_PS_Font_Private( FT_Face face, + PS_Private afont_private ); + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* T1_EncodingType */ + /* */ + /* <Description> */ + /* An enumeration describing the `Encoding' entry in a Type 1 */ + /* dictionary. */ + /* */ + typedef enum T1_EncodingType_ + { + T1_ENCODING_TYPE_NONE = 0, + T1_ENCODING_TYPE_ARRAY, + T1_ENCODING_TYPE_STANDARD, + T1_ENCODING_TYPE_ISOLATIN1, + T1_ENCODING_TYPE_EXPERT + + } T1_EncodingType; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* PS_Dict_Keys */ + /* */ + /* <Description> */ + /* An enumeration used in calls to @FT_Get_PS_Font_Value to identify */ + /* the Type~1 dictionary entry to retrieve. */ + /* */ + typedef enum PS_Dict_Keys_ + { + /* conventionally in the font dictionary */ + PS_DICT_FONT_TYPE, /* FT_Byte */ + PS_DICT_FONT_MATRIX, /* FT_Fixed */ + PS_DICT_FONT_BBOX, /* FT_Fixed */ + PS_DICT_PAINT_TYPE, /* FT_Byte */ + PS_DICT_FONT_NAME, /* FT_String* */ + PS_DICT_UNIQUE_ID, /* FT_Int */ + PS_DICT_NUM_CHAR_STRINGS, /* FT_Int */ + PS_DICT_CHAR_STRING_KEY, /* FT_String* */ + PS_DICT_CHAR_STRING, /* FT_String* */ + PS_DICT_ENCODING_TYPE, /* T1_EncodingType */ + PS_DICT_ENCODING_ENTRY, /* FT_String* */ + + /* conventionally in the font Private dictionary */ + PS_DICT_NUM_SUBRS, /* FT_Int */ + PS_DICT_SUBR, /* FT_String* */ + PS_DICT_STD_HW, /* FT_UShort */ + PS_DICT_STD_VW, /* FT_UShort */ + PS_DICT_NUM_BLUE_VALUES, /* FT_Byte */ + PS_DICT_BLUE_VALUE, /* FT_Short */ + PS_DICT_BLUE_FUZZ, /* FT_Int */ + PS_DICT_NUM_OTHER_BLUES, /* FT_Byte */ + PS_DICT_OTHER_BLUE, /* FT_Short */ + PS_DICT_NUM_FAMILY_BLUES, /* FT_Byte */ + PS_DICT_FAMILY_BLUE, /* FT_Short */ + PS_DICT_NUM_FAMILY_OTHER_BLUES, /* FT_Byte */ + PS_DICT_FAMILY_OTHER_BLUE, /* FT_Short */ + PS_DICT_BLUE_SCALE, /* FT_Fixed */ + PS_DICT_BLUE_SHIFT, /* FT_Int */ + PS_DICT_NUM_STEM_SNAP_H, /* FT_Byte */ + PS_DICT_STEM_SNAP_H, /* FT_Short */ + PS_DICT_NUM_STEM_SNAP_V, /* FT_Byte */ + PS_DICT_STEM_SNAP_V, /* FT_Short */ + PS_DICT_FORCE_BOLD, /* FT_Bool */ + PS_DICT_RND_STEM_UP, /* FT_Bool */ + PS_DICT_MIN_FEATURE, /* FT_Short */ + PS_DICT_LEN_IV, /* FT_Int */ + PS_DICT_PASSWORD, /* FT_Long */ + PS_DICT_LANGUAGE_GROUP, /* FT_Long */ + + /* conventionally in the font FontInfo dictionary */ + PS_DICT_VERSION, /* FT_String* */ + PS_DICT_NOTICE, /* FT_String* */ + PS_DICT_FULL_NAME, /* FT_String* */ + PS_DICT_FAMILY_NAME, /* FT_String* */ + PS_DICT_WEIGHT, /* FT_String* */ + PS_DICT_IS_FIXED_PITCH, /* FT_Bool */ + PS_DICT_UNDERLINE_POSITION, /* FT_Short */ + PS_DICT_UNDERLINE_THICKNESS, /* FT_UShort */ + PS_DICT_FS_TYPE, /* FT_UShort */ + PS_DICT_ITALIC_ANGLE, /* FT_Long */ + + PS_DICT_MAX = PS_DICT_ITALIC_ANGLE + + } PS_Dict_Keys; + + + /************************************************************************ + * + * @function: + * FT_Get_PS_Font_Value + * + * @description: + * Retrieve the value for the supplied key from a PostScript font. + * + * @input: + * face :: + * PostScript face handle. + * + * key :: + * An enumeration value representing the dictionary key to retrieve. + * + * idx :: + * For array values, this specifies the index to be returned. + * + * value :: + * A pointer to memory into which to write the value. + * + * valen_len :: + * The size, in bytes, of the memory supplied for the value. + * + * @output: + * value :: + * The value matching the above key, if it exists. + * + * @return: + * The amount of memory (in bytes) required to hold the requested + * value (if it exists, -1 otherwise). + * + * @note: + * The values returned are not pointers into the internal structures of + * the face, but are `fresh' copies, so that the memory containing them + * belongs to the calling application. This also enforces the + * `read-only' nature of these values, i.e., this function cannot be + * used to manipulate the face. + * + * `value' is a void pointer because the values returned can be of + * various types. + * + * If either `value' is NULL or `value_len' is too small, just the + * required memory size for the requested entry is returned. + * + * The `idx' parameter is used, not only to retrieve elements of, for + * example, the FontMatrix or FontBBox, but also to retrieve name keys + * from the CharStrings dictionary, and the charstrings themselves. It + * is ignored for atomic values. + * + * PS_DICT_BLUE_SCALE returns a value that is scaled up by 1000. To + * get the value as in the font stream, you need to divide by + * 65536000.0 (to remove the FT_Fixed scale, and the x1000 scale). + * + * IMPORTANT: Only key/value pairs read by the FreeType interpreter can + * be retrieved. So, for example, PostScript procedures such as NP, + * ND, and RD are not available. Arbitrary keys are, obviously, not be + * available either. + * + * If the font's format is not PostScript-based, this function returns + * the `FT_Err_Invalid_Argument' error code. + * + */ + FT_EXPORT( FT_Long ) + FT_Get_PS_Font_Value( FT_Face face, + PS_Dict_Keys key, + FT_UInt idx, + void *value, + FT_Long value_len ); + + /* */ + +FT_END_HEADER + +#endif /* __T1TABLES_H__ */ + + +/* END */ diff --git a/include/freetype/ttnameid.h b/include/freetype/ttnameid.h new file mode 100644 index 0000000..66aef04 --- /dev/null +++ b/include/freetype/ttnameid.h @@ -0,0 +1,1247 @@ +/***************************************************************************/ +/* */ +/* ttnameid.h */ +/* */ +/* TrueType name ID definitions (specification only). */ +/* */ +/* Copyright 1996-2002, 2003, 2004, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTNAMEID_H__ +#define __TTNAMEID_H__ + + +#include <ft2build.h> + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* truetype_tables */ + /* */ + + + /*************************************************************************/ + /* */ + /* Possible values for the `platform' identifier code in the name */ + /* records of the TTF `name' table. */ + /* */ + /*************************************************************************/ + + + /*********************************************************************** + * + * @enum: + * TT_PLATFORM_XXX + * + * @description: + * A list of valid values for the `platform_id' identifier code in + * @FT_CharMapRec and @FT_SfntName structures. + * + * @values: + * TT_PLATFORM_APPLE_UNICODE :: + * Used by Apple to indicate a Unicode character map and/or name entry. + * See @TT_APPLE_ID_XXX for corresponding `encoding_id' values. Note + * that name entries in this format are coded as big-endian UCS-2 + * character codes _only_. + * + * TT_PLATFORM_MACINTOSH :: + * Used by Apple to indicate a MacOS-specific charmap and/or name entry. + * See @TT_MAC_ID_XXX for corresponding `encoding_id' values. Note that + * most TrueType fonts contain an Apple roman charmap to be usable on + * MacOS systems (even if they contain a Microsoft charmap as well). + * + * TT_PLATFORM_ISO :: + * This value was used to specify ISO/IEC 10646 charmaps. It is however + * now deprecated. See @TT_ISO_ID_XXX for a list of corresponding + * `encoding_id' values. + * + * TT_PLATFORM_MICROSOFT :: + * Used by Microsoft to indicate Windows-specific charmaps. See + * @TT_MS_ID_XXX for a list of corresponding `encoding_id' values. + * Note that most fonts contain a Unicode charmap using + * (TT_PLATFORM_MICROSOFT, @TT_MS_ID_UNICODE_CS). + * + * TT_PLATFORM_CUSTOM :: + * Used to indicate application-specific charmaps. + * + * TT_PLATFORM_ADOBE :: + * This value isn't part of any font format specification, but is used + * by FreeType to report Adobe-specific charmaps in an @FT_CharMapRec + * structure. See @TT_ADOBE_ID_XXX. + */ + +#define TT_PLATFORM_APPLE_UNICODE 0 +#define TT_PLATFORM_MACINTOSH 1 +#define TT_PLATFORM_ISO 2 /* deprecated */ +#define TT_PLATFORM_MICROSOFT 3 +#define TT_PLATFORM_CUSTOM 4 +#define TT_PLATFORM_ADOBE 7 /* artificial */ + + + /*********************************************************************** + * + * @enum: + * TT_APPLE_ID_XXX + * + * @description: + * A list of valid values for the `encoding_id' for + * @TT_PLATFORM_APPLE_UNICODE charmaps and name entries. + * + * @values: + * TT_APPLE_ID_DEFAULT :: + * Unicode version 1.0. + * + * TT_APPLE_ID_UNICODE_1_1 :: + * Unicode 1.1; specifies Hangul characters starting at U+34xx. + * + * TT_APPLE_ID_ISO_10646 :: + * Deprecated (identical to preceding). + * + * TT_APPLE_ID_UNICODE_2_0 :: + * Unicode 2.0 and beyond (UTF-16 BMP only). + * + * TT_APPLE_ID_UNICODE_32 :: + * Unicode 3.1 and beyond, using UTF-32. + * + * TT_APPLE_ID_VARIANT_SELECTOR :: + * From Adobe, not Apple. Not a normal cmap. Specifies variations + * on a real cmap. + */ + +#define TT_APPLE_ID_DEFAULT 0 /* Unicode 1.0 */ +#define TT_APPLE_ID_UNICODE_1_1 1 /* specify Hangul at U+34xx */ +#define TT_APPLE_ID_ISO_10646 2 /* deprecated */ +#define TT_APPLE_ID_UNICODE_2_0 3 /* or later */ +#define TT_APPLE_ID_UNICODE_32 4 /* 2.0 or later, full repertoire */ +#define TT_APPLE_ID_VARIANT_SELECTOR 5 /* variation selector data */ + + + /*********************************************************************** + * + * @enum: + * TT_MAC_ID_XXX + * + * @description: + * A list of valid values for the `encoding_id' for + * @TT_PLATFORM_MACINTOSH charmaps and name entries. + * + * @values: + * TT_MAC_ID_ROMAN :: + * TT_MAC_ID_JAPANESE :: + * TT_MAC_ID_TRADITIONAL_CHINESE :: + * TT_MAC_ID_KOREAN :: + * TT_MAC_ID_ARABIC :: + * TT_MAC_ID_HEBREW :: + * TT_MAC_ID_GREEK :: + * TT_MAC_ID_RUSSIAN :: + * TT_MAC_ID_RSYMBOL :: + * TT_MAC_ID_DEVANAGARI :: + * TT_MAC_ID_GURMUKHI :: + * TT_MAC_ID_GUJARATI :: + * TT_MAC_ID_ORIYA :: + * TT_MAC_ID_BENGALI :: + * TT_MAC_ID_TAMIL :: + * TT_MAC_ID_TELUGU :: + * TT_MAC_ID_KANNADA :: + * TT_MAC_ID_MALAYALAM :: + * TT_MAC_ID_SINHALESE :: + * TT_MAC_ID_BURMESE :: + * TT_MAC_ID_KHMER :: + * TT_MAC_ID_THAI :: + * TT_MAC_ID_LAOTIAN :: + * TT_MAC_ID_GEORGIAN :: + * TT_MAC_ID_ARMENIAN :: + * TT_MAC_ID_MALDIVIAN :: + * TT_MAC_ID_SIMPLIFIED_CHINESE :: + * TT_MAC_ID_TIBETAN :: + * TT_MAC_ID_MONGOLIAN :: + * TT_MAC_ID_GEEZ :: + * TT_MAC_ID_SLAVIC :: + * TT_MAC_ID_VIETNAMESE :: + * TT_MAC_ID_SINDHI :: + * TT_MAC_ID_UNINTERP :: + */ + +#define TT_MAC_ID_ROMAN 0 +#define TT_MAC_ID_JAPANESE 1 +#define TT_MAC_ID_TRADITIONAL_CHINESE 2 +#define TT_MAC_ID_KOREAN 3 +#define TT_MAC_ID_ARABIC 4 +#define TT_MAC_ID_HEBREW 5 +#define TT_MAC_ID_GREEK 6 +#define TT_MAC_ID_RUSSIAN 7 +#define TT_MAC_ID_RSYMBOL 8 +#define TT_MAC_ID_DEVANAGARI 9 +#define TT_MAC_ID_GURMUKHI 10 +#define TT_MAC_ID_GUJARATI 11 +#define TT_MAC_ID_ORIYA 12 +#define TT_MAC_ID_BENGALI 13 +#define TT_MAC_ID_TAMIL 14 +#define TT_MAC_ID_TELUGU 15 +#define TT_MAC_ID_KANNADA 16 +#define TT_MAC_ID_MALAYALAM 17 +#define TT_MAC_ID_SINHALESE 18 +#define TT_MAC_ID_BURMESE 19 +#define TT_MAC_ID_KHMER 20 +#define TT_MAC_ID_THAI 21 +#define TT_MAC_ID_LAOTIAN 22 +#define TT_MAC_ID_GEORGIAN 23 +#define TT_MAC_ID_ARMENIAN 24 +#define TT_MAC_ID_MALDIVIAN 25 +#define TT_MAC_ID_SIMPLIFIED_CHINESE 25 +#define TT_MAC_ID_TIBETAN 26 +#define TT_MAC_ID_MONGOLIAN 27 +#define TT_MAC_ID_GEEZ 28 +#define TT_MAC_ID_SLAVIC 29 +#define TT_MAC_ID_VIETNAMESE 30 +#define TT_MAC_ID_SINDHI 31 +#define TT_MAC_ID_UNINTERP 32 + + + /*********************************************************************** + * + * @enum: + * TT_ISO_ID_XXX + * + * @description: + * A list of valid values for the `encoding_id' for + * @TT_PLATFORM_ISO charmaps and name entries. + * + * Their use is now deprecated. + * + * @values: + * TT_ISO_ID_7BIT_ASCII :: + * ASCII. + * TT_ISO_ID_10646 :: + * ISO/10646. + * TT_ISO_ID_8859_1 :: + * Also known as Latin-1. + */ + +#define TT_ISO_ID_7BIT_ASCII 0 +#define TT_ISO_ID_10646 1 +#define TT_ISO_ID_8859_1 2 + + + /*********************************************************************** + * + * @enum: + * TT_MS_ID_XXX + * + * @description: + * A list of valid values for the `encoding_id' for + * @TT_PLATFORM_MICROSOFT charmaps and name entries. + * + * @values: + * TT_MS_ID_SYMBOL_CS :: + * Corresponds to Microsoft symbol encoding. See + * @FT_ENCODING_MS_SYMBOL. + * + * TT_MS_ID_UNICODE_CS :: + * Corresponds to a Microsoft WGL4 charmap, matching Unicode. See + * @FT_ENCODING_UNICODE. + * + * TT_MS_ID_SJIS :: + * Corresponds to SJIS Japanese encoding. See @FT_ENCODING_SJIS. + * + * TT_MS_ID_GB2312 :: + * Corresponds to Simplified Chinese as used in Mainland China. See + * @FT_ENCODING_GB2312. + * + * TT_MS_ID_BIG_5 :: + * Corresponds to Traditional Chinese as used in Taiwan and Hong Kong. + * See @FT_ENCODING_BIG5. + * + * TT_MS_ID_WANSUNG :: + * Corresponds to Korean Wansung encoding. See @FT_ENCODING_WANSUNG. + * + * TT_MS_ID_JOHAB :: + * Corresponds to Johab encoding. See @FT_ENCODING_JOHAB. + * + * TT_MS_ID_UCS_4 :: + * Corresponds to UCS-4 or UTF-32 charmaps. This has been added to + * the OpenType specification version 1.4 (mid-2001.) + */ + +#define TT_MS_ID_SYMBOL_CS 0 +#define TT_MS_ID_UNICODE_CS 1 +#define TT_MS_ID_SJIS 2 +#define TT_MS_ID_GB2312 3 +#define TT_MS_ID_BIG_5 4 +#define TT_MS_ID_WANSUNG 5 +#define TT_MS_ID_JOHAB 6 +#define TT_MS_ID_UCS_4 10 + + + /*********************************************************************** + * + * @enum: + * TT_ADOBE_ID_XXX + * + * @description: + * A list of valid values for the `encoding_id' for + * @TT_PLATFORM_ADOBE charmaps. This is a FreeType-specific extension! + * + * @values: + * TT_ADOBE_ID_STANDARD :: + * Adobe standard encoding. + * TT_ADOBE_ID_EXPERT :: + * Adobe expert encoding. + * TT_ADOBE_ID_CUSTOM :: + * Adobe custom encoding. + * TT_ADOBE_ID_LATIN_1 :: + * Adobe Latin~1 encoding. + */ + +#define TT_ADOBE_ID_STANDARD 0 +#define TT_ADOBE_ID_EXPERT 1 +#define TT_ADOBE_ID_CUSTOM 2 +#define TT_ADOBE_ID_LATIN_1 3 + + + /*************************************************************************/ + /* */ + /* Possible values of the language identifier field in the name records */ + /* of the TTF `name' table if the `platform' identifier code is */ + /* TT_PLATFORM_MACINTOSH. */ + /* */ + /* The canonical source for the Apple assigned Language ID's is at */ + /* */ + /* http://fonts.apple.com/TTRefMan/RM06/Chap6name.html */ + /* */ +#define TT_MAC_LANGID_ENGLISH 0 +#define TT_MAC_LANGID_FRENCH 1 +#define TT_MAC_LANGID_GERMAN 2 +#define TT_MAC_LANGID_ITALIAN 3 +#define TT_MAC_LANGID_DUTCH 4 +#define TT_MAC_LANGID_SWEDISH 5 +#define TT_MAC_LANGID_SPANISH 6 +#define TT_MAC_LANGID_DANISH 7 +#define TT_MAC_LANGID_PORTUGUESE 8 +#define TT_MAC_LANGID_NORWEGIAN 9 +#define TT_MAC_LANGID_HEBREW 10 +#define TT_MAC_LANGID_JAPANESE 11 +#define TT_MAC_LANGID_ARABIC 12 +#define TT_MAC_LANGID_FINNISH 13 +#define TT_MAC_LANGID_GREEK 14 +#define TT_MAC_LANGID_ICELANDIC 15 +#define TT_MAC_LANGID_MALTESE 16 +#define TT_MAC_LANGID_TURKISH 17 +#define TT_MAC_LANGID_CROATIAN 18 +#define TT_MAC_LANGID_CHINESE_TRADITIONAL 19 +#define TT_MAC_LANGID_URDU 20 +#define TT_MAC_LANGID_HINDI 21 +#define TT_MAC_LANGID_THAI 22 +#define TT_MAC_LANGID_KOREAN 23 +#define TT_MAC_LANGID_LITHUANIAN 24 +#define TT_MAC_LANGID_POLISH 25 +#define TT_MAC_LANGID_HUNGARIAN 26 +#define TT_MAC_LANGID_ESTONIAN 27 +#define TT_MAC_LANGID_LETTISH 28 +#define TT_MAC_LANGID_SAAMISK 29 +#define TT_MAC_LANGID_FAEROESE 30 +#define TT_MAC_LANGID_FARSI 31 +#define TT_MAC_LANGID_RUSSIAN 32 +#define TT_MAC_LANGID_CHINESE_SIMPLIFIED 33 +#define TT_MAC_LANGID_FLEMISH 34 +#define TT_MAC_LANGID_IRISH 35 +#define TT_MAC_LANGID_ALBANIAN 36 +#define TT_MAC_LANGID_ROMANIAN 37 +#define TT_MAC_LANGID_CZECH 38 +#define TT_MAC_LANGID_SLOVAK 39 +#define TT_MAC_LANGID_SLOVENIAN 40 +#define TT_MAC_LANGID_YIDDISH 41 +#define TT_MAC_LANGID_SERBIAN 42 +#define TT_MAC_LANGID_MACEDONIAN 43 +#define TT_MAC_LANGID_BULGARIAN 44 +#define TT_MAC_LANGID_UKRAINIAN 45 +#define TT_MAC_LANGID_BYELORUSSIAN 46 +#define TT_MAC_LANGID_UZBEK 47 +#define TT_MAC_LANGID_KAZAKH 48 +#define TT_MAC_LANGID_AZERBAIJANI 49 +#define TT_MAC_LANGID_AZERBAIJANI_CYRILLIC_SCRIPT 49 +#define TT_MAC_LANGID_AZERBAIJANI_ARABIC_SCRIPT 50 +#define TT_MAC_LANGID_ARMENIAN 51 +#define TT_MAC_LANGID_GEORGIAN 52 +#define TT_MAC_LANGID_MOLDAVIAN 53 +#define TT_MAC_LANGID_KIRGHIZ 54 +#define TT_MAC_LANGID_TAJIKI 55 +#define TT_MAC_LANGID_TURKMEN 56 +#define TT_MAC_LANGID_MONGOLIAN 57 +#define TT_MAC_LANGID_MONGOLIAN_MONGOLIAN_SCRIPT 57 +#define TT_MAC_LANGID_MONGOLIAN_CYRILLIC_SCRIPT 58 +#define TT_MAC_LANGID_PASHTO 59 +#define TT_MAC_LANGID_KURDISH 60 +#define TT_MAC_LANGID_KASHMIRI 61 +#define TT_MAC_LANGID_SINDHI 62 +#define TT_MAC_LANGID_TIBETAN 63 +#define TT_MAC_LANGID_NEPALI 64 +#define TT_MAC_LANGID_SANSKRIT 65 +#define TT_MAC_LANGID_MARATHI 66 +#define TT_MAC_LANGID_BENGALI 67 +#define TT_MAC_LANGID_ASSAMESE 68 +#define TT_MAC_LANGID_GUJARATI 69 +#define TT_MAC_LANGID_PUNJABI 70 +#define TT_MAC_LANGID_ORIYA 71 +#define TT_MAC_LANGID_MALAYALAM 72 +#define TT_MAC_LANGID_KANNADA 73 +#define TT_MAC_LANGID_TAMIL 74 +#define TT_MAC_LANGID_TELUGU 75 +#define TT_MAC_LANGID_SINHALESE 76 +#define TT_MAC_LANGID_BURMESE 77 +#define TT_MAC_LANGID_KHMER 78 +#define TT_MAC_LANGID_LAO 79 +#define TT_MAC_LANGID_VIETNAMESE 80 +#define TT_MAC_LANGID_INDONESIAN 81 +#define TT_MAC_LANGID_TAGALOG 82 +#define TT_MAC_LANGID_MALAY_ROMAN_SCRIPT 83 +#define TT_MAC_LANGID_MALAY_ARABIC_SCRIPT 84 +#define TT_MAC_LANGID_AMHARIC 85 +#define TT_MAC_LANGID_TIGRINYA 86 +#define TT_MAC_LANGID_GALLA 87 +#define TT_MAC_LANGID_SOMALI 88 +#define TT_MAC_LANGID_SWAHILI 89 +#define TT_MAC_LANGID_RUANDA 90 +#define TT_MAC_LANGID_RUNDI 91 +#define TT_MAC_LANGID_CHEWA 92 +#define TT_MAC_LANGID_MALAGASY 93 +#define TT_MAC_LANGID_ESPERANTO 94 +#define TT_MAC_LANGID_WELSH 128 +#define TT_MAC_LANGID_BASQUE 129 +#define TT_MAC_LANGID_CATALAN 130 +#define TT_MAC_LANGID_LATIN 131 +#define TT_MAC_LANGID_QUECHUA 132 +#define TT_MAC_LANGID_GUARANI 133 +#define TT_MAC_LANGID_AYMARA 134 +#define TT_MAC_LANGID_TATAR 135 +#define TT_MAC_LANGID_UIGHUR 136 +#define TT_MAC_LANGID_DZONGKHA 137 +#define TT_MAC_LANGID_JAVANESE 138 +#define TT_MAC_LANGID_SUNDANESE 139 + + +#if 0 /* these seem to be errors that have been dropped */ + +#define TT_MAC_LANGID_SCOTTISH_GAELIC 140 +#define TT_MAC_LANGID_IRISH_GAELIC 141 + +#endif + + + /* The following codes are new as of 2000-03-10 */ +#define TT_MAC_LANGID_GALICIAN 140 +#define TT_MAC_LANGID_AFRIKAANS 141 +#define TT_MAC_LANGID_BRETON 142 +#define TT_MAC_LANGID_INUKTITUT 143 +#define TT_MAC_LANGID_SCOTTISH_GAELIC 144 +#define TT_MAC_LANGID_MANX_GAELIC 145 +#define TT_MAC_LANGID_IRISH_GAELIC 146 +#define TT_MAC_LANGID_TONGAN 147 +#define TT_MAC_LANGID_GREEK_POLYTONIC 148 +#define TT_MAC_LANGID_GREELANDIC 149 +#define TT_MAC_LANGID_AZERBAIJANI_ROMAN_SCRIPT 150 + + + /*************************************************************************/ + /* */ + /* Possible values of the language identifier field in the name records */ + /* of the TTF `name' table if the `platform' identifier code is */ + /* TT_PLATFORM_MICROSOFT. */ + /* */ + /* The canonical source for the MS assigned LCID's (seems to) be at */ + /* */ + /* http://www.microsoft.com/globaldev/reference/lcid-all.mspx */ + /* */ + /* It used to be at various places, among them */ + /* */ + /* http://www.microsoft.com/typography/OTSPEC/lcid-cp.txt */ + /* http://www.microsoft.com/globaldev/reference/loclanghome.asp */ + /* http://support.microsoft.com/support/kb/articles/Q224/8/04.ASP */ + /* http://msdn.microsoft.com/library/en-us/passport25/ */ + /* NET_Passport_VBScript_Documentation/Single_Sign_In/ */ + /* Advanced_Single_Sign_In/Localization_and_LCIDs.asp */ + /* */ + /* Hopefully, it seems now that the Globaldev site prevails... */ + /* (updated by Antoine, 2004-02-17) */ + +#define TT_MS_LANGID_ARABIC_GENERAL 0x0001 +#define TT_MS_LANGID_ARABIC_SAUDI_ARABIA 0x0401 +#define TT_MS_LANGID_ARABIC_IRAQ 0x0801 +#define TT_MS_LANGID_ARABIC_EGYPT 0x0c01 +#define TT_MS_LANGID_ARABIC_LIBYA 0x1001 +#define TT_MS_LANGID_ARABIC_ALGERIA 0x1401 +#define TT_MS_LANGID_ARABIC_MOROCCO 0x1801 +#define TT_MS_LANGID_ARABIC_TUNISIA 0x1c01 +#define TT_MS_LANGID_ARABIC_OMAN 0x2001 +#define TT_MS_LANGID_ARABIC_YEMEN 0x2401 +#define TT_MS_LANGID_ARABIC_SYRIA 0x2801 +#define TT_MS_LANGID_ARABIC_JORDAN 0x2c01 +#define TT_MS_LANGID_ARABIC_LEBANON 0x3001 +#define TT_MS_LANGID_ARABIC_KUWAIT 0x3401 +#define TT_MS_LANGID_ARABIC_UAE 0x3801 +#define TT_MS_LANGID_ARABIC_BAHRAIN 0x3c01 +#define TT_MS_LANGID_ARABIC_QATAR 0x4001 +#define TT_MS_LANGID_BULGARIAN_BULGARIA 0x0402 +#define TT_MS_LANGID_CATALAN_SPAIN 0x0403 +#define TT_MS_LANGID_CHINESE_GENERAL 0x0004 +#define TT_MS_LANGID_CHINESE_TAIWAN 0x0404 +#define TT_MS_LANGID_CHINESE_PRC 0x0804 +#define TT_MS_LANGID_CHINESE_HONG_KONG 0x0c04 +#define TT_MS_LANGID_CHINESE_SINGAPORE 0x1004 + +#if 1 /* this looks like the correct value */ +#define TT_MS_LANGID_CHINESE_MACAU 0x1404 +#else /* but beware, Microsoft may change its mind... + the most recent Word reference has the following: */ +#define TT_MS_LANGID_CHINESE_MACAU TT_MS_LANGID_CHINESE_HONG_KONG +#endif + +#if 0 /* used only with .NET `cultures'; commented out */ +#define TT_MS_LANGID_CHINESE_TRADITIONAL 0x7C04 +#endif + +#define TT_MS_LANGID_CZECH_CZECH_REPUBLIC 0x0405 +#define TT_MS_LANGID_DANISH_DENMARK 0x0406 +#define TT_MS_LANGID_GERMAN_GERMANY 0x0407 +#define TT_MS_LANGID_GERMAN_SWITZERLAND 0x0807 +#define TT_MS_LANGID_GERMAN_AUSTRIA 0x0c07 +#define TT_MS_LANGID_GERMAN_LUXEMBOURG 0x1007 +#define TT_MS_LANGID_GERMAN_LIECHTENSTEI 0x1407 +#define TT_MS_LANGID_GREEK_GREECE 0x0408 + + /* don't ask what this one means... It is commented out currently. */ +#if 0 +#define TT_MS_LANGID_GREEK_GREECE2 0x2008 +#endif + +#define TT_MS_LANGID_ENGLISH_GENERAL 0x0009 +#define TT_MS_LANGID_ENGLISH_UNITED_STATES 0x0409 +#define TT_MS_LANGID_ENGLISH_UNITED_KINGDOM 0x0809 +#define TT_MS_LANGID_ENGLISH_AUSTRALIA 0x0c09 +#define TT_MS_LANGID_ENGLISH_CANADA 0x1009 +#define TT_MS_LANGID_ENGLISH_NEW_ZEALAND 0x1409 +#define TT_MS_LANGID_ENGLISH_IRELAND 0x1809 +#define TT_MS_LANGID_ENGLISH_SOUTH_AFRICA 0x1c09 +#define TT_MS_LANGID_ENGLISH_JAMAICA 0x2009 +#define TT_MS_LANGID_ENGLISH_CARIBBEAN 0x2409 +#define TT_MS_LANGID_ENGLISH_BELIZE 0x2809 +#define TT_MS_LANGID_ENGLISH_TRINIDAD 0x2c09 +#define TT_MS_LANGID_ENGLISH_ZIMBABWE 0x3009 +#define TT_MS_LANGID_ENGLISH_PHILIPPINES 0x3409 +#define TT_MS_LANGID_ENGLISH_INDONESIA 0x3809 +#define TT_MS_LANGID_ENGLISH_HONG_KONG 0x3c09 +#define TT_MS_LANGID_ENGLISH_INDIA 0x4009 +#define TT_MS_LANGID_ENGLISH_MALAYSIA 0x4409 +#define TT_MS_LANGID_ENGLISH_SINGAPORE 0x4809 +#define TT_MS_LANGID_SPANISH_SPAIN_TRADITIONAL_SORT 0x040a +#define TT_MS_LANGID_SPANISH_MEXICO 0x080a +#define TT_MS_LANGID_SPANISH_SPAIN_INTERNATIONAL_SORT 0x0c0a +#define TT_MS_LANGID_SPANISH_GUATEMALA 0x100a +#define TT_MS_LANGID_SPANISH_COSTA_RICA 0x140a +#define TT_MS_LANGID_SPANISH_PANAMA 0x180a +#define TT_MS_LANGID_SPANISH_DOMINICAN_REPUBLIC 0x1c0a +#define TT_MS_LANGID_SPANISH_VENEZUELA 0x200a +#define TT_MS_LANGID_SPANISH_COLOMBIA 0x240a +#define TT_MS_LANGID_SPANISH_PERU 0x280a +#define TT_MS_LANGID_SPANISH_ARGENTINA 0x2c0a +#define TT_MS_LANGID_SPANISH_ECUADOR 0x300a +#define TT_MS_LANGID_SPANISH_CHILE 0x340a +#define TT_MS_LANGID_SPANISH_URUGUAY 0x380a +#define TT_MS_LANGID_SPANISH_PARAGUAY 0x3c0a +#define TT_MS_LANGID_SPANISH_BOLIVIA 0x400a +#define TT_MS_LANGID_SPANISH_EL_SALVADOR 0x440a +#define TT_MS_LANGID_SPANISH_HONDURAS 0x480a +#define TT_MS_LANGID_SPANISH_NICARAGUA 0x4c0a +#define TT_MS_LANGID_SPANISH_PUERTO_RICO 0x500a +#define TT_MS_LANGID_SPANISH_UNITED_STATES 0x540a + /* The following ID blatantly violate MS specs by using a */ + /* sublanguage > 0x1F. */ +#define TT_MS_LANGID_SPANISH_LATIN_AMERICA 0xE40aU +#define TT_MS_LANGID_FINNISH_FINLAND 0x040b +#define TT_MS_LANGID_FRENCH_FRANCE 0x040c +#define TT_MS_LANGID_FRENCH_BELGIUM 0x080c +#define TT_MS_LANGID_FRENCH_CANADA 0x0c0c +#define TT_MS_LANGID_FRENCH_SWITZERLAND 0x100c +#define TT_MS_LANGID_FRENCH_LUXEMBOURG 0x140c +#define TT_MS_LANGID_FRENCH_MONACO 0x180c +#define TT_MS_LANGID_FRENCH_WEST_INDIES 0x1c0c +#define TT_MS_LANGID_FRENCH_REUNION 0x200c +#define TT_MS_LANGID_FRENCH_CONGO 0x240c + /* which was formerly: */ +#define TT_MS_LANGID_FRENCH_ZAIRE TT_MS_LANGID_FRENCH_CONGO +#define TT_MS_LANGID_FRENCH_SENEGAL 0x280c +#define TT_MS_LANGID_FRENCH_CAMEROON 0x2c0c +#define TT_MS_LANGID_FRENCH_COTE_D_IVOIRE 0x300c +#define TT_MS_LANGID_FRENCH_MALI 0x340c +#define TT_MS_LANGID_FRENCH_MOROCCO 0x380c +#define TT_MS_LANGID_FRENCH_HAITI 0x3c0c + /* and another violation of the spec (see 0xE40aU) */ +#define TT_MS_LANGID_FRENCH_NORTH_AFRICA 0xE40cU +#define TT_MS_LANGID_HEBREW_ISRAEL 0x040d +#define TT_MS_LANGID_HUNGARIAN_HUNGARY 0x040e +#define TT_MS_LANGID_ICELANDIC_ICELAND 0x040f +#define TT_MS_LANGID_ITALIAN_ITALY 0x0410 +#define TT_MS_LANGID_ITALIAN_SWITZERLAND 0x0810 +#define TT_MS_LANGID_JAPANESE_JAPAN 0x0411 +#define TT_MS_LANGID_KOREAN_EXTENDED_WANSUNG_KOREA 0x0412 +#define TT_MS_LANGID_KOREAN_JOHAB_KOREA 0x0812 +#define TT_MS_LANGID_DUTCH_NETHERLANDS 0x0413 +#define TT_MS_LANGID_DUTCH_BELGIUM 0x0813 +#define TT_MS_LANGID_NORWEGIAN_NORWAY_BOKMAL 0x0414 +#define TT_MS_LANGID_NORWEGIAN_NORWAY_NYNORSK 0x0814 +#define TT_MS_LANGID_POLISH_POLAND 0x0415 +#define TT_MS_LANGID_PORTUGUESE_BRAZIL 0x0416 +#define TT_MS_LANGID_PORTUGUESE_PORTUGAL 0x0816 +#define TT_MS_LANGID_RHAETO_ROMANIC_SWITZERLAND 0x0417 +#define TT_MS_LANGID_ROMANIAN_ROMANIA 0x0418 +#define TT_MS_LANGID_MOLDAVIAN_MOLDAVIA 0x0818 +#define TT_MS_LANGID_RUSSIAN_RUSSIA 0x0419 +#define TT_MS_LANGID_RUSSIAN_MOLDAVIA 0x0819 +#define TT_MS_LANGID_CROATIAN_CROATIA 0x041a +#define TT_MS_LANGID_SERBIAN_SERBIA_LATIN 0x081a +#define TT_MS_LANGID_SERBIAN_SERBIA_CYRILLIC 0x0c1a + +#if 0 /* this used to be this value, but it looks like we were wrong */ +#define TT_MS_LANGID_BOSNIAN_BOSNIA_HERZEGOVINA 0x101a +#else /* current sources say */ +#define TT_MS_LANGID_CROATIAN_BOSNIA_HERZEGOVINA 0x101a +#define TT_MS_LANGID_BOSNIAN_BOSNIA_HERZEGOVINA 0x141a + /* and XPsp2 Platform SDK added (2004-07-26) */ + /* Names are shortened to be significant within 40 chars. */ +#define TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_LATIN 0x181a +#define TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_CYRILLIC 0x181a +#endif + +#define TT_MS_LANGID_SLOVAK_SLOVAKIA 0x041b +#define TT_MS_LANGID_ALBANIAN_ALBANIA 0x041c +#define TT_MS_LANGID_SWEDISH_SWEDEN 0x041d +#define TT_MS_LANGID_SWEDISH_FINLAND 0x081d +#define TT_MS_LANGID_THAI_THAILAND 0x041e +#define TT_MS_LANGID_TURKISH_TURKEY 0x041f +#define TT_MS_LANGID_URDU_PAKISTAN 0x0420 +#define TT_MS_LANGID_URDU_INDIA 0x0820 +#define TT_MS_LANGID_INDONESIAN_INDONESIA 0x0421 +#define TT_MS_LANGID_UKRAINIAN_UKRAINE 0x0422 +#define TT_MS_LANGID_BELARUSIAN_BELARUS 0x0423 +#define TT_MS_LANGID_SLOVENE_SLOVENIA 0x0424 +#define TT_MS_LANGID_ESTONIAN_ESTONIA 0x0425 +#define TT_MS_LANGID_LATVIAN_LATVIA 0x0426 +#define TT_MS_LANGID_LITHUANIAN_LITHUANIA 0x0427 +#define TT_MS_LANGID_CLASSIC_LITHUANIAN_LITHUANIA 0x0827 +#define TT_MS_LANGID_TAJIK_TAJIKISTAN 0x0428 +#define TT_MS_LANGID_FARSI_IRAN 0x0429 +#define TT_MS_LANGID_VIETNAMESE_VIET_NAM 0x042a +#define TT_MS_LANGID_ARMENIAN_ARMENIA 0x042b +#define TT_MS_LANGID_AZERI_AZERBAIJAN_LATIN 0x042c +#define TT_MS_LANGID_AZERI_AZERBAIJAN_CYRILLIC 0x082c +#define TT_MS_LANGID_BASQUE_SPAIN 0x042d +#define TT_MS_LANGID_SORBIAN_GERMANY 0x042e +#define TT_MS_LANGID_MACEDONIAN_MACEDONIA 0x042f +#define TT_MS_LANGID_SUTU_SOUTH_AFRICA 0x0430 +#define TT_MS_LANGID_TSONGA_SOUTH_AFRICA 0x0431 +#define TT_MS_LANGID_TSWANA_SOUTH_AFRICA 0x0432 +#define TT_MS_LANGID_VENDA_SOUTH_AFRICA 0x0433 +#define TT_MS_LANGID_XHOSA_SOUTH_AFRICA 0x0434 +#define TT_MS_LANGID_ZULU_SOUTH_AFRICA 0x0435 +#define TT_MS_LANGID_AFRIKAANS_SOUTH_AFRICA 0x0436 +#define TT_MS_LANGID_GEORGIAN_GEORGIA 0x0437 +#define TT_MS_LANGID_FAEROESE_FAEROE_ISLANDS 0x0438 +#define TT_MS_LANGID_HINDI_INDIA 0x0439 +#define TT_MS_LANGID_MALTESE_MALTA 0x043a + /* Added by XPsp2 Platform SDK (2004-07-26) */ +#define TT_MS_LANGID_SAMI_NORTHERN_NORWAY 0x043b +#define TT_MS_LANGID_SAMI_NORTHERN_SWEDEN 0x083b +#define TT_MS_LANGID_SAMI_NORTHERN_FINLAND 0x0C3b +#define TT_MS_LANGID_SAMI_LULE_NORWAY 0x103b +#define TT_MS_LANGID_SAMI_LULE_SWEDEN 0x143b +#define TT_MS_LANGID_SAMI_SOUTHERN_NORWAY 0x183b +#define TT_MS_LANGID_SAMI_SOUTHERN_SWEDEN 0x1C3b +#define TT_MS_LANGID_SAMI_SKOLT_FINLAND 0x203b +#define TT_MS_LANGID_SAMI_INARI_FINLAND 0x243b + /* ... and we also keep our old identifier... */ +#define TT_MS_LANGID_SAAMI_LAPONIA 0x043b + +#if 0 /* this seems to be a previous inversion */ +#define TT_MS_LANGID_IRISH_GAELIC_IRELAND 0x043c +#define TT_MS_LANGID_SCOTTISH_GAELIC_UNITED_KINGDOM 0x083c +#else +#define TT_MS_LANGID_SCOTTISH_GAELIC_UNITED_KINGDOM 0x083c +#define TT_MS_LANGID_IRISH_GAELIC_IRELAND 0x043c +#endif + +#define TT_MS_LANGID_YIDDISH_GERMANY 0x043d +#define TT_MS_LANGID_MALAY_MALAYSIA 0x043e +#define TT_MS_LANGID_MALAY_BRUNEI_DARUSSALAM 0x083e +#define TT_MS_LANGID_KAZAK_KAZAKSTAN 0x043f +#define TT_MS_LANGID_KIRGHIZ_KIRGHIZSTAN /* Cyrillic*/ 0x0440 + /* alias declared in Windows 2000 */ +#define TT_MS_LANGID_KIRGHIZ_KIRGHIZ_REPUBLIC \ + TT_MS_LANGID_KIRGHIZ_KIRGHIZSTAN + +#define TT_MS_LANGID_SWAHILI_KENYA 0x0441 +#define TT_MS_LANGID_TURKMEN_TURKMENISTAN 0x0442 +#define TT_MS_LANGID_UZBEK_UZBEKISTAN_LATIN 0x0443 +#define TT_MS_LANGID_UZBEK_UZBEKISTAN_CYRILLIC 0x0843 +#define TT_MS_LANGID_TATAR_TATARSTAN 0x0444 +#define TT_MS_LANGID_BENGALI_INDIA 0x0445 +#define TT_MS_LANGID_BENGALI_BANGLADESH 0x0845 +#define TT_MS_LANGID_PUNJABI_INDIA 0x0446 +#define TT_MS_LANGID_PUNJABI_ARABIC_PAKISTAN 0x0846 +#define TT_MS_LANGID_GUJARATI_INDIA 0x0447 +#define TT_MS_LANGID_ORIYA_INDIA 0x0448 +#define TT_MS_LANGID_TAMIL_INDIA 0x0449 +#define TT_MS_LANGID_TELUGU_INDIA 0x044a +#define TT_MS_LANGID_KANNADA_INDIA 0x044b +#define TT_MS_LANGID_MALAYALAM_INDIA 0x044c +#define TT_MS_LANGID_ASSAMESE_INDIA 0x044d +#define TT_MS_LANGID_MARATHI_INDIA 0x044e +#define TT_MS_LANGID_SANSKRIT_INDIA 0x044f +#define TT_MS_LANGID_MONGOLIAN_MONGOLIA /* Cyrillic */ 0x0450 +#define TT_MS_LANGID_MONGOLIAN_MONGOLIA_MONGOLIAN 0x0850 +#define TT_MS_LANGID_TIBETAN_CHINA 0x0451 + /* Don't use the next constant! It has */ + /* (1) the wrong spelling (Dzonghka) */ + /* (2) Microsoft doesn't officially define it -- */ + /* at least it is not in the List of Local */ + /* ID Values. */ + /* (3) Dzongkha is not the same language as */ + /* Tibetan, so merging it is wrong anyway. */ + /* */ + /* TT_MS_LANGID_TIBETAN_BHUTAN is correct, BTW. */ +#define TT_MS_LANGID_DZONGHKA_BHUTAN 0x0851 + +#if 0 + /* the following used to be defined */ +#define TT_MS_LANGID_TIBETAN_BHUTAN 0x0451 + /* ... but it was changed; */ +#else + /* So we will continue to #define it, but with the correct value */ +#define TT_MS_LANGID_TIBETAN_BHUTAN TT_MS_LANGID_DZONGHKA_BHUTAN +#endif + +#define TT_MS_LANGID_WELSH_WALES 0x0452 +#define TT_MS_LANGID_KHMER_CAMBODIA 0x0453 +#define TT_MS_LANGID_LAO_LAOS 0x0454 +#define TT_MS_LANGID_BURMESE_MYANMAR 0x0455 +#define TT_MS_LANGID_GALICIAN_SPAIN 0x0456 +#define TT_MS_LANGID_KONKANI_INDIA 0x0457 +#define TT_MS_LANGID_MANIPURI_INDIA /* Bengali */ 0x0458 +#define TT_MS_LANGID_SINDHI_INDIA /* Arabic */ 0x0459 +#define TT_MS_LANGID_SINDHI_PAKISTAN 0x0859 + /* Missing a LCID for Sindhi in Devanagari script */ +#define TT_MS_LANGID_SYRIAC_SYRIA 0x045a +#define TT_MS_LANGID_SINHALESE_SRI_LANKA 0x045b +#define TT_MS_LANGID_CHEROKEE_UNITED_STATES 0x045c +#define TT_MS_LANGID_INUKTITUT_CANADA 0x045d +#define TT_MS_LANGID_AMHARIC_ETHIOPIA 0x045e +#define TT_MS_LANGID_TAMAZIGHT_MOROCCO /* Arabic */ 0x045f +#define TT_MS_LANGID_TAMAZIGHT_MOROCCO_LATIN 0x085f + /* Missing a LCID for Tifinagh script */ +#define TT_MS_LANGID_KASHMIRI_PAKISTAN /* Arabic */ 0x0460 + /* Spelled this way by XPsp2 Platform SDK (2004-07-26) */ + /* script is yet unclear... might be Arabic, Nagari or Sharada */ +#define TT_MS_LANGID_KASHMIRI_SASIA 0x0860 + /* ... and aliased (by MS) for compatibility reasons. */ +#define TT_MS_LANGID_KASHMIRI_INDIA TT_MS_LANGID_KASHMIRI_SASIA +#define TT_MS_LANGID_NEPALI_NEPAL 0x0461 +#define TT_MS_LANGID_NEPALI_INDIA 0x0861 +#define TT_MS_LANGID_FRISIAN_NETHERLANDS 0x0462 +#define TT_MS_LANGID_PASHTO_AFGHANISTAN 0x0463 +#define TT_MS_LANGID_FILIPINO_PHILIPPINES 0x0464 +#define TT_MS_LANGID_DHIVEHI_MALDIVES 0x0465 + /* alias declared in Windows 2000 */ +#define TT_MS_LANGID_DIVEHI_MALDIVES TT_MS_LANGID_DHIVEHI_MALDIVES +#define TT_MS_LANGID_EDO_NIGERIA 0x0466 +#define TT_MS_LANGID_FULFULDE_NIGERIA 0x0467 +#define TT_MS_LANGID_HAUSA_NIGERIA 0x0468 +#define TT_MS_LANGID_IBIBIO_NIGERIA 0x0469 +#define TT_MS_LANGID_YORUBA_NIGERIA 0x046a +#define TT_MS_LANGID_QUECHUA_BOLIVIA 0x046b +#define TT_MS_LANGID_QUECHUA_ECUADOR 0x086b +#define TT_MS_LANGID_QUECHUA_PERU 0x0c6b +#define TT_MS_LANGID_SEPEDI_SOUTH_AFRICA 0x046c + /* Also spelled by XPsp2 Platform SDK (2004-07-26) */ +#define TT_MS_LANGID_SOTHO_SOUTHERN_SOUTH_AFRICA \ + TT_MS_LANGID_SEPEDI_SOUTH_AFRICA + /* language codes 0x046d, 0x046e and 0x046f are (still) unknown. */ +#define TT_MS_LANGID_IGBO_NIGERIA 0x0470 +#define TT_MS_LANGID_KANURI_NIGERIA 0x0471 +#define TT_MS_LANGID_OROMO_ETHIOPIA 0x0472 +#define TT_MS_LANGID_TIGRIGNA_ETHIOPIA 0x0473 +#define TT_MS_LANGID_TIGRIGNA_ERYTHREA 0x0873 + /* also spelled in the `Passport SDK' list as: */ +#define TT_MS_LANGID_TIGRIGNA_ERYTREA TT_MS_LANGID_TIGRIGNA_ERYTHREA +#define TT_MS_LANGID_GUARANI_PARAGUAY 0x0474 +#define TT_MS_LANGID_HAWAIIAN_UNITED_STATES 0x0475 +#define TT_MS_LANGID_LATIN 0x0476 +#define TT_MS_LANGID_SOMALI_SOMALIA 0x0477 + /* Note: Yi does not have a (proper) ISO 639-2 code, since it is mostly */ + /* not written (but OTOH the peculiar writing system is worth */ + /* studying). */ +#define TT_MS_LANGID_YI_CHINA 0x0478 +#define TT_MS_LANGID_PAPIAMENTU_NETHERLANDS_ANTILLES 0x0479 + /* language codes from 0x047a to 0x047f are (still) unknown. */ +#define TT_MS_LANGID_UIGHUR_CHINA 0x0480 +#define TT_MS_LANGID_MAORI_NEW_ZEALAND 0x0481 + +#if 0 /* not deemed useful for fonts */ +#define TT_MS_LANGID_HUMAN_INTERFACE_DEVICE 0x04ff +#endif + + + /*************************************************************************/ + /* */ + /* Possible values of the `name' identifier field in the name records of */ + /* the TTF `name' table. These values are platform independent. */ + /* */ +#define TT_NAME_ID_COPYRIGHT 0 +#define TT_NAME_ID_FONT_FAMILY 1 +#define TT_NAME_ID_FONT_SUBFAMILY 2 +#define TT_NAME_ID_UNIQUE_ID 3 +#define TT_NAME_ID_FULL_NAME 4 +#define TT_NAME_ID_VERSION_STRING 5 +#define TT_NAME_ID_PS_NAME 6 +#define TT_NAME_ID_TRADEMARK 7 + + /* the following values are from the OpenType spec */ +#define TT_NAME_ID_MANUFACTURER 8 +#define TT_NAME_ID_DESIGNER 9 +#define TT_NAME_ID_DESCRIPTION 10 +#define TT_NAME_ID_VENDOR_URL 11 +#define TT_NAME_ID_DESIGNER_URL 12 +#define TT_NAME_ID_LICENSE 13 +#define TT_NAME_ID_LICENSE_URL 14 + /* number 15 is reserved */ +#define TT_NAME_ID_PREFERRED_FAMILY 16 +#define TT_NAME_ID_PREFERRED_SUBFAMILY 17 +#define TT_NAME_ID_MAC_FULL_NAME 18 + + /* The following code is new as of 2000-01-21 */ +#define TT_NAME_ID_SAMPLE_TEXT 19 + + /* This is new in OpenType 1.3 */ +#define TT_NAME_ID_CID_FINDFONT_NAME 20 + + /* This is new in OpenType 1.5 */ +#define TT_NAME_ID_WWS_FAMILY 21 +#define TT_NAME_ID_WWS_SUBFAMILY 22 + + + /*************************************************************************/ + /* */ + /* Bit mask values for the Unicode Ranges from the TTF `OS2 ' table. */ + /* */ + /* Updated 08-Nov-2008. */ + /* */ + + /* Bit 0 Basic Latin */ +#define TT_UCR_BASIC_LATIN (1L << 0) /* U+0020-U+007E */ + /* Bit 1 C1 Controls and Latin-1 Supplement */ +#define TT_UCR_LATIN1_SUPPLEMENT (1L << 1) /* U+0080-U+00FF */ + /* Bit 2 Latin Extended-A */ +#define TT_UCR_LATIN_EXTENDED_A (1L << 2) /* U+0100-U+017F */ + /* Bit 3 Latin Extended-B */ +#define TT_UCR_LATIN_EXTENDED_B (1L << 3) /* U+0180-U+024F */ + /* Bit 4 IPA Extensions */ + /* Phonetic Extensions */ + /* Phonetic Extensions Supplement */ +#define TT_UCR_IPA_EXTENSIONS (1L << 4) /* U+0250-U+02AF */ + /* U+1D00-U+1D7F */ + /* U+1D80-U+1DBF */ + /* Bit 5 Spacing Modifier Letters */ + /* Modifier Tone Letters */ +#define TT_UCR_SPACING_MODIFIER (1L << 5) /* U+02B0-U+02FF */ + /* U+A700-U+A71F */ + /* Bit 6 Combining Diacritical Marks */ + /* Combining Diacritical Marks Supplement */ +#define TT_UCR_COMBINING_DIACRITICS (1L << 6) /* U+0300-U+036F */ + /* U+1DC0-U+1DFF */ + /* Bit 7 Greek and Coptic */ +#define TT_UCR_GREEK (1L << 7) /* U+0370-U+03FF */ + /* Bit 8 Coptic */ +#define TT_UCR_COPTIC (1L << 8) /* U+2C80-U+2CFF */ + /* Bit 9 Cyrillic */ + /* Cyrillic Supplement */ + /* Cyrillic Extended-A */ + /* Cyrillic Extended-B */ +#define TT_UCR_CYRILLIC (1L << 9) /* U+0400-U+04FF */ + /* U+0500-U+052F */ + /* U+2DE0-U+2DFF */ + /* U+A640-U+A69F */ + /* Bit 10 Armenian */ +#define TT_UCR_ARMENIAN (1L << 10) /* U+0530-U+058F */ + /* Bit 11 Hebrew */ +#define TT_UCR_HEBREW (1L << 11) /* U+0590-U+05FF */ + /* Bit 12 Vai */ +#define TT_UCR_VAI (1L << 12) /* U+A500-U+A63F */ + /* Bit 13 Arabic */ + /* Arabic Supplement */ +#define TT_UCR_ARABIC (1L << 13) /* U+0600-U+06FF */ + /* U+0750-U+077F */ + /* Bit 14 NKo */ +#define TT_UCR_NKO (1L << 14) /* U+07C0-U+07FF */ + /* Bit 15 Devanagari */ +#define TT_UCR_DEVANAGARI (1L << 15) /* U+0900-U+097F */ + /* Bit 16 Bengali */ +#define TT_UCR_BENGALI (1L << 16) /* U+0980-U+09FF */ + /* Bit 17 Gurmukhi */ +#define TT_UCR_GURMUKHI (1L << 17) /* U+0A00-U+0A7F */ + /* Bit 18 Gujarati */ +#define TT_UCR_GUJARATI (1L << 18) /* U+0A80-U+0AFF */ + /* Bit 19 Oriya */ +#define TT_UCR_ORIYA (1L << 19) /* U+0B00-U+0B7F */ + /* Bit 20 Tamil */ +#define TT_UCR_TAMIL (1L << 20) /* U+0B80-U+0BFF */ + /* Bit 21 Telugu */ +#define TT_UCR_TELUGU (1L << 21) /* U+0C00-U+0C7F */ + /* Bit 22 Kannada */ +#define TT_UCR_KANNADA (1L << 22) /* U+0C80-U+0CFF */ + /* Bit 23 Malayalam */ +#define TT_UCR_MALAYALAM (1L << 23) /* U+0D00-U+0D7F */ + /* Bit 24 Thai */ +#define TT_UCR_THAI (1L << 24) /* U+0E00-U+0E7F */ + /* Bit 25 Lao */ +#define TT_UCR_LAO (1L << 25) /* U+0E80-U+0EFF */ + /* Bit 26 Georgian */ + /* Georgian Supplement */ +#define TT_UCR_GEORGIAN (1L << 26) /* U+10A0-U+10FF */ + /* U+2D00-U+2D2F */ + /* Bit 27 Balinese */ +#define TT_UCR_BALINESE (1L << 27) /* U+1B00-U+1B7F */ + /* Bit 28 Hangul Jamo */ +#define TT_UCR_HANGUL_JAMO (1L << 28) /* U+1100-U+11FF */ + /* Bit 29 Latin Extended Additional */ + /* Latin Extended-C */ + /* Latin Extended-D */ +#define TT_UCR_LATIN_EXTENDED_ADDITIONAL (1L << 29) /* U+1E00-U+1EFF */ + /* U+2C60-U+2C7F */ + /* U+A720-U+A7FF */ + /* Bit 30 Greek Extended */ +#define TT_UCR_GREEK_EXTENDED (1L << 30) /* U+1F00-U+1FFF */ + /* Bit 31 General Punctuation */ + /* Supplemental Punctuation */ +#define TT_UCR_GENERAL_PUNCTUATION (1L << 31) /* U+2000-U+206F */ + /* U+2E00-U+2E7F */ + /* Bit 32 Superscripts And Subscripts */ +#define TT_UCR_SUPERSCRIPTS_SUBSCRIPTS (1L << 0) /* U+2070-U+209F */ + /* Bit 33 Currency Symbols */ +#define TT_UCR_CURRENCY_SYMBOLS (1L << 1) /* U+20A0-U+20CF */ + /* Bit 34 Combining Diacritical Marks For Symbols */ +#define TT_UCR_COMBINING_DIACRITICS_SYMB (1L << 2) /* U+20D0-U+20FF */ + /* Bit 35 Letterlike Symbols */ +#define TT_UCR_LETTERLIKE_SYMBOLS (1L << 3) /* U+2100-U+214F */ + /* Bit 36 Number Forms */ +#define TT_UCR_NUMBER_FORMS (1L << 4) /* U+2150-U+218F */ + /* Bit 37 Arrows */ + /* Supplemental Arrows-A */ + /* Supplemental Arrows-B */ + /* Miscellaneous Symbols and Arrows */ +#define TT_UCR_ARROWS (1L << 5) /* U+2190-U+21FF */ + /* U+27F0-U+27FF */ + /* U+2900-U+297F */ + /* U+2B00-U+2BFF */ + /* Bit 38 Mathematical Operators */ + /* Supplemental Mathematical Operators */ + /* Miscellaneous Mathematical Symbols-A */ + /* Miscellaneous Mathematical Symbols-B */ +#define TT_UCR_MATHEMATICAL_OPERATORS (1L << 6) /* U+2200-U+22FF */ + /* U+2A00-U+2AFF */ + /* U+27C0-U+27EF */ + /* U+2980-U+29FF */ + /* Bit 39 Miscellaneous Technical */ +#define TT_UCR_MISCELLANEOUS_TECHNICAL (1L << 7) /* U+2300-U+23FF */ + /* Bit 40 Control Pictures */ +#define TT_UCR_CONTROL_PICTURES (1L << 8) /* U+2400-U+243F */ + /* Bit 41 Optical Character Recognition */ +#define TT_UCR_OCR (1L << 9) /* U+2440-U+245F */ + /* Bit 42 Enclosed Alphanumerics */ +#define TT_UCR_ENCLOSED_ALPHANUMERICS (1L << 10) /* U+2460-U+24FF */ + /* Bit 43 Box Drawing */ +#define TT_UCR_BOX_DRAWING (1L << 11) /* U+2500-U+257F */ + /* Bit 44 Block Elements */ +#define TT_UCR_BLOCK_ELEMENTS (1L << 12) /* U+2580-U+259F */ + /* Bit 45 Geometric Shapes */ +#define TT_UCR_GEOMETRIC_SHAPES (1L << 13) /* U+25A0-U+25FF */ + /* Bit 46 Miscellaneous Symbols */ +#define TT_UCR_MISCELLANEOUS_SYMBOLS (1L << 14) /* U+2600-U+26FF */ + /* Bit 47 Dingbats */ +#define TT_UCR_DINGBATS (1L << 15) /* U+2700-U+27BF */ + /* Bit 48 CJK Symbols and Punctuation */ +#define TT_UCR_CJK_SYMBOLS (1L << 16) /* U+3000-U+303F */ + /* Bit 49 Hiragana */ +#define TT_UCR_HIRAGANA (1L << 17) /* U+3040-U+309F */ + /* Bit 50 Katakana */ + /* Katakana Phonetic Extensions */ +#define TT_UCR_KATAKANA (1L << 18) /* U+30A0-U+30FF */ + /* U+31F0-U+31FF */ + /* Bit 51 Bopomofo */ + /* Bopomofo Extended */ +#define TT_UCR_BOPOMOFO (1L << 19) /* U+3100-U+312F */ + /* U+31A0-U+31BF */ + /* Bit 52 Hangul Compatibility Jamo */ +#define TT_UCR_HANGUL_COMPATIBILITY_JAMO (1L << 20) /* U+3130-U+318F */ + /* Bit 53 Phags-Pa */ +#define TT_UCR_CJK_MISC (1L << 21) /* U+A840-U+A87F */ +#define TT_UCR_KANBUN TT_UCR_CJK_MISC /* deprecated */ +#define TT_UCR_PHAGSPA + /* Bit 54 Enclosed CJK Letters and Months */ +#define TT_UCR_ENCLOSED_CJK_LETTERS_MONTHS (1L << 22) /* U+3200-U+32FF */ + /* Bit 55 CJK Compatibility */ +#define TT_UCR_CJK_COMPATIBILITY (1L << 23) /* U+3300-U+33FF */ + /* Bit 56 Hangul Syllables */ +#define TT_UCR_HANGUL (1L << 24) /* U+AC00-U+D7A3 */ + /* Bit 57 High Surrogates */ + /* High Private Use Surrogates */ + /* Low Surrogates */ + /* */ + /* According to OpenType specs v.1.3+, */ + /* setting bit 57 implies that there is */ + /* at least one codepoint beyond the */ + /* Basic Multilingual Plane that is */ + /* supported by this font. So it really */ + /* means >= U+10000 */ +#define TT_UCR_SURROGATES (1L << 25) /* U+D800-U+DB7F */ + /* U+DB80-U+DBFF */ + /* U+DC00-U+DFFF */ +#define TT_UCR_NON_PLANE_0 TT_UCR_SURROGATES + /* Bit 58 Phoenician */ +#define TT_UCR_PHOENICIAN (1L << 26) /*U+10900-U+1091F*/ + /* Bit 59 CJK Unified Ideographs */ + /* CJK Radicals Supplement */ + /* Kangxi Radicals */ + /* Ideographic Description Characters */ + /* CJK Unified Ideographs Extension A */ + /* CJK Unified Ideographs Extension B */ + /* Kanbun */ +#define TT_UCR_CJK_UNIFIED_IDEOGRAPHS (1L << 27) /* U+4E00-U+9FFF */ + /* U+2E80-U+2EFF */ + /* U+2F00-U+2FDF */ + /* U+2FF0-U+2FFF */ + /* U+3400-U+4DB5 */ + /*U+20000-U+2A6DF*/ + /* U+3190-U+319F */ + /* Bit 60 Private Use */ +#define TT_UCR_PRIVATE_USE (1L << 28) /* U+E000-U+F8FF */ + /* Bit 61 CJK Strokes */ + /* CJK Compatibility Ideographs */ + /* CJK Compatibility Ideographs Supplement */ +#define TT_UCR_CJK_COMPATIBILITY_IDEOGRAPHS (1L << 29) /* U+31C0-U+31EF */ + /* U+F900-U+FAFF */ + /*U+2F800-U+2FA1F*/ + /* Bit 62 Alphabetic Presentation Forms */ +#define TT_UCR_ALPHABETIC_PRESENTATION_FORMS (1L << 30) /* U+FB00-U+FB4F */ + /* Bit 63 Arabic Presentation Forms-A */ +#define TT_UCR_ARABIC_PRESENTATIONS_A (1L << 31) /* U+FB50-U+FDFF */ + /* Bit 64 Combining Half Marks */ +#define TT_UCR_COMBINING_HALF_MARKS (1L << 0) /* U+FE20-U+FE2F */ + /* Bit 65 Vertical forms */ + /* CJK Compatibility Forms */ +#define TT_UCR_CJK_COMPATIBILITY_FORMS (1L << 1) /* U+FE10-U+FE1F */ + /* U+FE30-U+FE4F */ + /* Bit 66 Small Form Variants */ +#define TT_UCR_SMALL_FORM_VARIANTS (1L << 2) /* U+FE50-U+FE6F */ + /* Bit 67 Arabic Presentation Forms-B */ +#define TT_UCR_ARABIC_PRESENTATIONS_B (1L << 3) /* U+FE70-U+FEFE */ + /* Bit 68 Halfwidth and Fullwidth Forms */ +#define TT_UCR_HALFWIDTH_FULLWIDTH_FORMS (1L << 4) /* U+FF00-U+FFEF */ + /* Bit 69 Specials */ +#define TT_UCR_SPECIALS (1L << 5) /* U+FFF0-U+FFFD */ + /* Bit 70 Tibetan */ +#define TT_UCR_TIBETAN (1L << 6) /* U+0F00-U+0FFF */ + /* Bit 71 Syriac */ +#define TT_UCR_SYRIAC (1L << 7) /* U+0700-U+074F */ + /* Bit 72 Thaana */ +#define TT_UCR_THAANA (1L << 8) /* U+0780-U+07BF */ + /* Bit 73 Sinhala */ +#define TT_UCR_SINHALA (1L << 9) /* U+0D80-U+0DFF */ + /* Bit 74 Myanmar */ +#define TT_UCR_MYANMAR (1L << 10) /* U+1000-U+109F */ + /* Bit 75 Ethiopic */ + /* Ethiopic Supplement */ + /* Ethiopic Extended */ +#define TT_UCR_ETHIOPIC (1L << 11) /* U+1200-U+137F */ + /* U+1380-U+139F */ + /* U+2D80-U+2DDF */ + /* Bit 76 Cherokee */ +#define TT_UCR_CHEROKEE (1L << 12) /* U+13A0-U+13FF */ + /* Bit 77 Unified Canadian Aboriginal Syllabics */ +#define TT_UCR_CANADIAN_ABORIGINAL_SYLLABICS (1L << 13) /* U+1400-U+167F */ + /* Bit 78 Ogham */ +#define TT_UCR_OGHAM (1L << 14) /* U+1680-U+169F */ + /* Bit 79 Runic */ +#define TT_UCR_RUNIC (1L << 15) /* U+16A0-U+16FF */ + /* Bit 80 Khmer */ + /* Khmer Symbols */ +#define TT_UCR_KHMER (1L << 16) /* U+1780-U+17FF */ + /* U+19E0-U+19FF */ + /* Bit 81 Mongolian */ +#define TT_UCR_MONGOLIAN (1L << 17) /* U+1800-U+18AF */ + /* Bit 82 Braille Patterns */ +#define TT_UCR_BRAILLE (1L << 18) /* U+2800-U+28FF */ + /* Bit 83 Yi Syllables */ + /* Yi Radicals */ +#define TT_UCR_YI (1L << 19) /* U+A000-U+A48F */ + /* U+A490-U+A4CF */ + /* Bit 84 Tagalog */ + /* Hanunoo */ + /* Buhid */ + /* Tagbanwa */ +#define TT_UCR_PHILIPPINE (1L << 20) /* U+1700-U+171F */ + /* U+1720-U+173F */ + /* U+1740-U+175F */ + /* U+1760-U+177F */ + /* Bit 85 Old Italic */ +#define TT_UCR_OLD_ITALIC (1L << 21) /*U+10300-U+1032F*/ + /* Bit 86 Gothic */ +#define TT_UCR_GOTHIC (1L << 22) /*U+10330-U+1034F*/ + /* Bit 87 Deseret */ +#define TT_UCR_DESERET (1L << 23) /*U+10400-U+1044F*/ + /* Bit 88 Byzantine Musical Symbols */ + /* Musical Symbols */ + /* Ancient Greek Musical Notation */ +#define TT_UCR_MUSICAL_SYMBOLS (1L << 24) /*U+1D000-U+1D0FF*/ + /*U+1D100-U+1D1FF*/ + /*U+1D200-U+1D24F*/ + /* Bit 89 Mathematical Alphanumeric Symbols */ +#define TT_UCR_MATH_ALPHANUMERIC_SYMBOLS (1L << 25) /*U+1D400-U+1D7FF*/ + /* Bit 90 Private Use (plane 15) */ + /* Private Use (plane 16) */ +#define TT_UCR_PRIVATE_USE_SUPPLEMENTARY (1L << 26) /*U+F0000-U+FFFFD*/ + /*U+100000-U+10FFFD*/ + /* Bit 91 Variation Selectors */ + /* Variation Selectors Supplement */ +#define TT_UCR_VARIATION_SELECTORS (1L << 27) /* U+FE00-U+FE0F */ + /*U+E0100-U+E01EF*/ + /* Bit 92 Tags */ +#define TT_UCR_TAGS (1L << 28) /*U+E0000-U+E007F*/ + /* Bit 93 Limbu */ +#define TT_UCR_LIMBU (1L << 29) /* U+1900-U+194F */ + /* Bit 94 Tai Le */ +#define TT_UCR_TAI_LE (1L << 30) /* U+1950-U+197F */ + /* Bit 95 New Tai Lue */ +#define TT_UCR_NEW_TAI_LUE (1L << 31) /* U+1980-U+19DF */ + /* Bit 96 Buginese */ +#define TT_UCR_BUGINESE (1L << 0) /* U+1A00-U+1A1F */ + /* Bit 97 Glagolitic */ +#define TT_UCR_GLAGOLITIC (1L << 1) /* U+2C00-U+2C5F */ + /* Bit 98 Tifinagh */ +#define TT_UCR_TIFINAGH (1L << 2) /* U+2D30-U+2D7F */ + /* Bit 99 Yijing Hexagram Symbols */ +#define TT_UCR_YIJING (1L << 3) /* U+4DC0-U+4DFF */ + /* Bit 100 Syloti Nagri */ +#define TT_UCR_SYLOTI_NAGRI (1L << 4) /* U+A800-U+A82F */ + /* Bit 101 Linear B Syllabary */ + /* Linear B Ideograms */ + /* Aegean Numbers */ +#define TT_UCR_LINEAR_B (1L << 5) /*U+10000-U+1007F*/ + /*U+10080-U+100FF*/ + /*U+10100-U+1013F*/ + /* Bit 102 Ancient Greek Numbers */ +#define TT_UCR_ANCIENT_GREEK_NUMBERS (1L << 6) /*U+10140-U+1018F*/ + /* Bit 103 Ugaritic */ +#define TT_UCR_UGARITIC (1L << 7) /*U+10380-U+1039F*/ + /* Bit 104 Old Persian */ +#define TT_UCR_OLD_PERSIAN (1L << 8) /*U+103A0-U+103DF*/ + /* Bit 105 Shavian */ +#define TT_UCR_SHAVIAN (1L << 9) /*U+10450-U+1047F*/ + /* Bit 106 Osmanya */ +#define TT_UCR_OSMANYA (1L << 10) /*U+10480-U+104AF*/ + /* Bit 107 Cypriot Syllabary */ +#define TT_UCR_CYPRIOT_SYLLABARY (1L << 11) /*U+10800-U+1083F*/ + /* Bit 108 Kharoshthi */ +#define TT_UCR_KHAROSHTHI (1L << 12) /*U+10A00-U+10A5F*/ + /* Bit 109 Tai Xuan Jing Symbols */ +#define TT_UCR_TAI_XUAN_JING (1L << 13) /*U+1D300-U+1D35F*/ + /* Bit 110 Cuneiform */ + /* Cuneiform Numbers and Punctuation */ +#define TT_UCR_CUNEIFORM (1L << 14) /*U+12000-U+123FF*/ + /*U+12400-U+1247F*/ + /* Bit 111 Counting Rod Numerals */ +#define TT_UCR_COUNTING_ROD_NUMERALS (1L << 15) /*U+1D360-U+1D37F*/ + /* Bit 112 Sundanese */ +#define TT_UCR_SUNDANESE (1L << 16) /* U+1B80-U+1BBF */ + /* Bit 113 Lepcha */ +#define TT_UCR_LEPCHA (1L << 17) /* U+1C00-U+1C4F */ + /* Bit 114 Ol Chiki */ +#define TT_UCR_OL_CHIKI (1L << 18) /* U+1C50-U+1C7F */ + /* Bit 115 Saurashtra */ +#define TT_UCR_SAURASHTRA (1L << 19) /* U+A880-U+A8DF */ + /* Bit 116 Kayah Li */ +#define TT_UCR_KAYAH_LI (1L << 20) /* U+A900-U+A92F */ + /* Bit 117 Rejang */ +#define TT_UCR_REJANG (1L << 21) /* U+A930-U+A95F */ + /* Bit 118 Cham */ +#define TT_UCR_CHAM (1L << 22) /* U+AA00-U+AA5F */ + /* Bit 119 Ancient Symbols */ +#define TT_UCR_ANCIENT_SYMBOLS (1L << 23) /*U+10190-U+101CF*/ + /* Bit 120 Phaistos Disc */ +#define TT_UCR_PHAISTOS_DISC (1L << 24) /*U+101D0-U+101FF*/ + /* Bit 121 Carian */ + /* Lycian */ + /* Lydian */ +#define TT_UCR_OLD_ANATOLIAN (1L << 25) /*U+102A0-U+102DF*/ + /*U+10280-U+1029F*/ + /*U+10920-U+1093F*/ + /* Bit 122 Domino Tiles */ + /* Mahjong Tiles */ +#define TT_UCR_GAME_TILES (1L << 26) /*U+1F030-U+1F09F*/ + /*U+1F000-U+1F02F*/ + /* Bit 123-127 Reserved for process-internal usage */ + + + /*************************************************************************/ + /* */ + /* Some compilers have a very limited length of identifiers. */ + /* */ +#if defined( __TURBOC__ ) && __TURBOC__ < 0x0410 || defined( __PACIFIC__ ) +#define HAVE_LIMIT_ON_IDENTS +#endif + + +#ifndef HAVE_LIMIT_ON_IDENTS + + + /*************************************************************************/ + /* */ + /* Here some alias #defines in order to be clearer. */ + /* */ + /* These are not always #defined to stay within the 31~character limit */ + /* which some compilers have. */ + /* */ + /* Credits go to Dave Hoo <dhoo@flash.net> for pointing out that modern */ + /* Borland compilers (read: from BC++ 3.1 on) can increase this limit. */ + /* If you get a warning with such a compiler, use the -i40 switch. */ + /* */ +#define TT_UCR_ARABIC_PRESENTATION_FORMS_A \ + TT_UCR_ARABIC_PRESENTATIONS_A +#define TT_UCR_ARABIC_PRESENTATION_FORMS_B \ + TT_UCR_ARABIC_PRESENTATIONS_B + +#define TT_UCR_COMBINING_DIACRITICAL_MARKS \ + TT_UCR_COMBINING_DIACRITICS +#define TT_UCR_COMBINING_DIACRITICAL_MARKS_SYMB \ + TT_UCR_COMBINING_DIACRITICS_SYMB + + +#endif /* !HAVE_LIMIT_ON_IDENTS */ + + +FT_END_HEADER + +#endif /* __TTNAMEID_H__ */ + + +/* END */ diff --git a/include/freetype/tttables.h b/include/freetype/tttables.h new file mode 100644 index 0000000..02236c2 --- /dev/null +++ b/include/freetype/tttables.h @@ -0,0 +1,763 @@ +/***************************************************************************/ +/* */ +/* tttables.h */ +/* */ +/* Basic SFNT/TrueType tables definitions and interface */ +/* (specification only). */ +/* */ +/* Copyright 1996-2005, 2008-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTTABLES_H__ +#define __TTTABLES_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /* */ + /* <Section> */ + /* truetype_tables */ + /* */ + /* <Title> */ + /* TrueType Tables */ + /* */ + /* <Abstract> */ + /* TrueType specific table types and functions. */ + /* */ + /* <Description> */ + /* This section contains the definition of TrueType-specific tables */ + /* as well as some routines used to access and process them. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_Header */ + /* */ + /* <Description> */ + /* A structure used to model a TrueType font header table. All */ + /* fields follow the TrueType specification. */ + /* */ + typedef struct TT_Header_ + { + FT_Fixed Table_Version; + FT_Fixed Font_Revision; + + FT_Long CheckSum_Adjust; + FT_Long Magic_Number; + + FT_UShort Flags; + FT_UShort Units_Per_EM; + + FT_Long Created [2]; + FT_Long Modified[2]; + + FT_Short xMin; + FT_Short yMin; + FT_Short xMax; + FT_Short yMax; + + FT_UShort Mac_Style; + FT_UShort Lowest_Rec_PPEM; + + FT_Short Font_Direction; + FT_Short Index_To_Loc_Format; + FT_Short Glyph_Data_Format; + + } TT_Header; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_HoriHeader */ + /* */ + /* <Description> */ + /* A structure used to model a TrueType horizontal header, the `hhea' */ + /* table, as well as the corresponding horizontal metrics table, */ + /* i.e., the `hmtx' table. */ + /* */ + /* <Fields> */ + /* Version :: The table version. */ + /* */ + /* Ascender :: The font's ascender, i.e., the distance */ + /* from the baseline to the top-most of all */ + /* glyph points found in the font. */ + /* */ + /* This value is invalid in many fonts, as */ + /* it is usually set by the font designer, */ + /* and often reflects only a portion of the */ + /* glyphs found in the font (maybe ASCII). */ + /* */ + /* You should use the `sTypoAscender' field */ + /* of the OS/2 table instead if you want */ + /* the correct one. */ + /* */ + /* Descender :: The font's descender, i.e., the distance */ + /* from the baseline to the bottom-most of */ + /* all glyph points found in the font. It */ + /* is negative. */ + /* */ + /* This value is invalid in many fonts, as */ + /* it is usually set by the font designer, */ + /* and often reflects only a portion of the */ + /* glyphs found in the font (maybe ASCII). */ + /* */ + /* You should use the `sTypoDescender' */ + /* field of the OS/2 table instead if you */ + /* want the correct one. */ + /* */ + /* Line_Gap :: The font's line gap, i.e., the distance */ + /* to add to the ascender and descender to */ + /* get the BTB, i.e., the */ + /* baseline-to-baseline distance for the */ + /* font. */ + /* */ + /* advance_Width_Max :: This field is the maximum of all advance */ + /* widths found in the font. It can be */ + /* used to compute the maximum width of an */ + /* arbitrary string of text. */ + /* */ + /* min_Left_Side_Bearing :: The minimum left side bearing of all */ + /* glyphs within the font. */ + /* */ + /* min_Right_Side_Bearing :: The minimum right side bearing of all */ + /* glyphs within the font. */ + /* */ + /* xMax_Extent :: The maximum horizontal extent (i.e., the */ + /* `width' of a glyph's bounding box) for */ + /* all glyphs in the font. */ + /* */ + /* caret_Slope_Rise :: The rise coefficient of the cursor's */ + /* slope of the cursor (slope=rise/run). */ + /* */ + /* caret_Slope_Run :: The run coefficient of the cursor's */ + /* slope. */ + /* */ + /* Reserved :: 8~reserved bytes. */ + /* */ + /* metric_Data_Format :: Always~0. */ + /* */ + /* number_Of_HMetrics :: Number of HMetrics entries in the `hmtx' */ + /* table -- this value can be smaller than */ + /* the total number of glyphs in the font. */ + /* */ + /* long_metrics :: A pointer into the `hmtx' table. */ + /* */ + /* short_metrics :: A pointer into the `hmtx' table. */ + /* */ + /* <Note> */ + /* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */ + /* be identical except for the names of their fields which */ + /* are different. */ + /* */ + /* This ensures that a single function in the `ttload' */ + /* module is able to read both the horizontal and vertical */ + /* headers. */ + /* */ + typedef struct TT_HoriHeader_ + { + FT_Fixed Version; + FT_Short Ascender; + FT_Short Descender; + FT_Short Line_Gap; + + FT_UShort advance_Width_Max; /* advance width maximum */ + + FT_Short min_Left_Side_Bearing; /* minimum left-sb */ + FT_Short min_Right_Side_Bearing; /* minimum right-sb */ + FT_Short xMax_Extent; /* xmax extents */ + FT_Short caret_Slope_Rise; + FT_Short caret_Slope_Run; + FT_Short caret_Offset; + + FT_Short Reserved[4]; + + FT_Short metric_Data_Format; + FT_UShort number_Of_HMetrics; + + /* The following fields are not defined by the TrueType specification */ + /* but they are used to connect the metrics header to the relevant */ + /* `HMTX' table. */ + + void* long_metrics; + void* short_metrics; + + } TT_HoriHeader; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_VertHeader */ + /* */ + /* <Description> */ + /* A structure used to model a TrueType vertical header, the `vhea' */ + /* table, as well as the corresponding vertical metrics table, i.e., */ + /* the `vmtx' table. */ + /* */ + /* <Fields> */ + /* Version :: The table version. */ + /* */ + /* Ascender :: The font's ascender, i.e., the distance */ + /* from the baseline to the top-most of */ + /* all glyph points found in the font. */ + /* */ + /* This value is invalid in many fonts, as */ + /* it is usually set by the font designer, */ + /* and often reflects only a portion of */ + /* the glyphs found in the font (maybe */ + /* ASCII). */ + /* */ + /* You should use the `sTypoAscender' */ + /* field of the OS/2 table instead if you */ + /* want the correct one. */ + /* */ + /* Descender :: The font's descender, i.e., the */ + /* distance from the baseline to the */ + /* bottom-most of all glyph points found */ + /* in the font. It is negative. */ + /* */ + /* This value is invalid in many fonts, as */ + /* it is usually set by the font designer, */ + /* and often reflects only a portion of */ + /* the glyphs found in the font (maybe */ + /* ASCII). */ + /* */ + /* You should use the `sTypoDescender' */ + /* field of the OS/2 table instead if you */ + /* want the correct one. */ + /* */ + /* Line_Gap :: The font's line gap, i.e., the distance */ + /* to add to the ascender and descender to */ + /* get the BTB, i.e., the */ + /* baseline-to-baseline distance for the */ + /* font. */ + /* */ + /* advance_Height_Max :: This field is the maximum of all */ + /* advance heights found in the font. It */ + /* can be used to compute the maximum */ + /* height of an arbitrary string of text. */ + /* */ + /* min_Top_Side_Bearing :: The minimum top side bearing of all */ + /* glyphs within the font. */ + /* */ + /* min_Bottom_Side_Bearing :: The minimum bottom side bearing of all */ + /* glyphs within the font. */ + /* */ + /* yMax_Extent :: The maximum vertical extent (i.e., the */ + /* `height' of a glyph's bounding box) for */ + /* all glyphs in the font. */ + /* */ + /* caret_Slope_Rise :: The rise coefficient of the cursor's */ + /* slope of the cursor (slope=rise/run). */ + /* */ + /* caret_Slope_Run :: The run coefficient of the cursor's */ + /* slope. */ + /* */ + /* caret_Offset :: The cursor's offset for slanted fonts. */ + /* This value is `reserved' in vmtx */ + /* version 1.0. */ + /* */ + /* Reserved :: 8~reserved bytes. */ + /* */ + /* metric_Data_Format :: Always~0. */ + /* */ + /* number_Of_HMetrics :: Number of VMetrics entries in the */ + /* `vmtx' table -- this value can be */ + /* smaller than the total number of glyphs */ + /* in the font. */ + /* */ + /* long_metrics :: A pointer into the `vmtx' table. */ + /* */ + /* short_metrics :: A pointer into the `vmtx' table. */ + /* */ + /* <Note> */ + /* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */ + /* be identical except for the names of their fields which */ + /* are different. */ + /* */ + /* This ensures that a single function in the `ttload' */ + /* module is able to read both the horizontal and vertical */ + /* headers. */ + /* */ + typedef struct TT_VertHeader_ + { + FT_Fixed Version; + FT_Short Ascender; + FT_Short Descender; + FT_Short Line_Gap; + + FT_UShort advance_Height_Max; /* advance height maximum */ + + FT_Short min_Top_Side_Bearing; /* minimum left-sb or top-sb */ + FT_Short min_Bottom_Side_Bearing; /* minimum right-sb or bottom-sb */ + FT_Short yMax_Extent; /* xmax or ymax extents */ + FT_Short caret_Slope_Rise; + FT_Short caret_Slope_Run; + FT_Short caret_Offset; + + FT_Short Reserved[4]; + + FT_Short metric_Data_Format; + FT_UShort number_Of_VMetrics; + + /* The following fields are not defined by the TrueType specification */ + /* but they're used to connect the metrics header to the relevant */ + /* `HMTX' or `VMTX' table. */ + + void* long_metrics; + void* short_metrics; + + } TT_VertHeader; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_OS2 */ + /* */ + /* <Description> */ + /* A structure used to model a TrueType OS/2 table. This is the long */ + /* table version. All fields comply to the TrueType specification. */ + /* */ + /* Note that we now support old Mac fonts which do not include an */ + /* OS/2 table. In this case, the `version' field is always set to */ + /* 0xFFFF. */ + /* */ + typedef struct TT_OS2_ + { + FT_UShort version; /* 0x0001 - more or 0xFFFF */ + FT_Short xAvgCharWidth; + FT_UShort usWeightClass; + FT_UShort usWidthClass; + FT_Short fsType; + FT_Short ySubscriptXSize; + FT_Short ySubscriptYSize; + FT_Short ySubscriptXOffset; + FT_Short ySubscriptYOffset; + FT_Short ySuperscriptXSize; + FT_Short ySuperscriptYSize; + FT_Short ySuperscriptXOffset; + FT_Short ySuperscriptYOffset; + FT_Short yStrikeoutSize; + FT_Short yStrikeoutPosition; + FT_Short sFamilyClass; + + FT_Byte panose[10]; + + FT_ULong ulUnicodeRange1; /* Bits 0-31 */ + FT_ULong ulUnicodeRange2; /* Bits 32-63 */ + FT_ULong ulUnicodeRange3; /* Bits 64-95 */ + FT_ULong ulUnicodeRange4; /* Bits 96-127 */ + + FT_Char achVendID[4]; + + FT_UShort fsSelection; + FT_UShort usFirstCharIndex; + FT_UShort usLastCharIndex; + FT_Short sTypoAscender; + FT_Short sTypoDescender; + FT_Short sTypoLineGap; + FT_UShort usWinAscent; + FT_UShort usWinDescent; + + /* only version 1 tables: */ + + FT_ULong ulCodePageRange1; /* Bits 0-31 */ + FT_ULong ulCodePageRange2; /* Bits 32-63 */ + + /* only version 2 tables: */ + + FT_Short sxHeight; + FT_Short sCapHeight; + FT_UShort usDefaultChar; + FT_UShort usBreakChar; + FT_UShort usMaxContext; + + } TT_OS2; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_Postscript */ + /* */ + /* <Description> */ + /* A structure used to model a TrueType PostScript table. All fields */ + /* comply to the TrueType specification. This structure does not */ + /* reference the PostScript glyph names, which can be nevertheless */ + /* accessed with the `ttpost' module. */ + /* */ + typedef struct TT_Postscript_ + { + FT_Fixed FormatType; + FT_Fixed italicAngle; + FT_Short underlinePosition; + FT_Short underlineThickness; + FT_ULong isFixedPitch; + FT_ULong minMemType42; + FT_ULong maxMemType42; + FT_ULong minMemType1; + FT_ULong maxMemType1; + + /* Glyph names follow in the file, but we don't */ + /* load them by default. See the ttpost.c file. */ + + } TT_Postscript; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_PCLT */ + /* */ + /* <Description> */ + /* A structure used to model a TrueType PCLT table. All fields */ + /* comply to the TrueType specification. */ + /* */ + typedef struct TT_PCLT_ + { + FT_Fixed Version; + FT_ULong FontNumber; + FT_UShort Pitch; + FT_UShort xHeight; + FT_UShort Style; + FT_UShort TypeFamily; + FT_UShort CapHeight; + FT_UShort SymbolSet; + FT_Char TypeFace[16]; + FT_Char CharacterComplement[8]; + FT_Char FileName[6]; + FT_Char StrokeWeight; + FT_Char WidthType; + FT_Byte SerifStyle; + FT_Byte Reserved; + + } TT_PCLT; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* TT_MaxProfile */ + /* */ + /* <Description> */ + /* The maximum profile is a table containing many max values which */ + /* can be used to pre-allocate arrays. This ensures that no memory */ + /* allocation occurs during a glyph load. */ + /* */ + /* <Fields> */ + /* version :: The version number. */ + /* */ + /* numGlyphs :: The number of glyphs in this TrueType */ + /* font. */ + /* */ + /* maxPoints :: The maximum number of points in a */ + /* non-composite TrueType glyph. See also */ + /* the structure element */ + /* `maxCompositePoints'. */ + /* */ + /* maxContours :: The maximum number of contours in a */ + /* non-composite TrueType glyph. See also */ + /* the structure element */ + /* `maxCompositeContours'. */ + /* */ + /* maxCompositePoints :: The maximum number of points in a */ + /* composite TrueType glyph. See also the */ + /* structure element `maxPoints'. */ + /* */ + /* maxCompositeContours :: The maximum number of contours in a */ + /* composite TrueType glyph. See also the */ + /* structure element `maxContours'. */ + /* */ + /* maxZones :: The maximum number of zones used for */ + /* glyph hinting. */ + /* */ + /* maxTwilightPoints :: The maximum number of points in the */ + /* twilight zone used for glyph hinting. */ + /* */ + /* maxStorage :: The maximum number of elements in the */ + /* storage area used for glyph hinting. */ + /* */ + /* maxFunctionDefs :: The maximum number of function */ + /* definitions in the TrueType bytecode for */ + /* this font. */ + /* */ + /* maxInstructionDefs :: The maximum number of instruction */ + /* definitions in the TrueType bytecode for */ + /* this font. */ + /* */ + /* maxStackElements :: The maximum number of stack elements used */ + /* during bytecode interpretation. */ + /* */ + /* maxSizeOfInstructions :: The maximum number of TrueType opcodes */ + /* used for glyph hinting. */ + /* */ + /* maxComponentElements :: The maximum number of simple (i.e., non- */ + /* composite) glyphs in a composite glyph. */ + /* */ + /* maxComponentDepth :: The maximum nesting depth of composite */ + /* glyphs. */ + /* */ + /* <Note> */ + /* This structure is only used during font loading. */ + /* */ + typedef struct TT_MaxProfile_ + { + FT_Fixed version; + FT_UShort numGlyphs; + FT_UShort maxPoints; + FT_UShort maxContours; + FT_UShort maxCompositePoints; + FT_UShort maxCompositeContours; + FT_UShort maxZones; + FT_UShort maxTwilightPoints; + FT_UShort maxStorage; + FT_UShort maxFunctionDefs; + FT_UShort maxInstructionDefs; + FT_UShort maxStackElements; + FT_UShort maxSizeOfInstructions; + FT_UShort maxComponentElements; + FT_UShort maxComponentDepth; + + } TT_MaxProfile; + + + /*************************************************************************/ + /* */ + /* <Enum> */ + /* FT_Sfnt_Tag */ + /* */ + /* <Description> */ + /* An enumeration used to specify the index of an SFNT table. */ + /* Used in the @FT_Get_Sfnt_Table API function. */ + /* */ + typedef enum FT_Sfnt_Tag_ + { + ft_sfnt_head = 0, /* TT_Header */ + ft_sfnt_maxp = 1, /* TT_MaxProfile */ + ft_sfnt_os2 = 2, /* TT_OS2 */ + ft_sfnt_hhea = 3, /* TT_HoriHeader */ + ft_sfnt_vhea = 4, /* TT_VertHeader */ + ft_sfnt_post = 5, /* TT_Postscript */ + ft_sfnt_pclt = 6, /* TT_PCLT */ + + sfnt_max /* internal end mark */ + + } FT_Sfnt_Tag; + + /* */ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_Sfnt_Table */ + /* */ + /* <Description> */ + /* Return a pointer to a given SFNT table within a face. */ + /* */ + /* <Input> */ + /* face :: A handle to the source. */ + /* */ + /* tag :: The index of the SFNT table. */ + /* */ + /* <Return> */ + /* A type-less pointer to the table. This will be~0 in case of */ + /* error, or if the corresponding table was not found *OR* loaded */ + /* from the file. */ + /* */ + /* Use a typecast according to `tag' to access the structure */ + /* elements. */ + /* */ + /* <Note> */ + /* The table is owned by the face object and disappears with it. */ + /* */ + /* This function is only useful to access SFNT tables that are loaded */ + /* by the sfnt, truetype, and opentype drivers. See @FT_Sfnt_Tag for */ + /* a list. */ + /* */ + FT_EXPORT( void* ) + FT_Get_Sfnt_Table( FT_Face face, + FT_Sfnt_Tag tag ); + + + /************************************************************************** + * + * @function: + * FT_Load_Sfnt_Table + * + * @description: + * Load any font table into client memory. + * + * @input: + * face :: + * A handle to the source face. + * + * tag :: + * The four-byte tag of the table to load. Use the value~0 if you want + * to access the whole font file. Otherwise, you can use one of the + * definitions found in the @FT_TRUETYPE_TAGS_H file, or forge a new + * one with @FT_MAKE_TAG. + * + * offset :: + * The starting offset in the table (or file if tag == 0). + * + * @output: + * buffer :: + * The target buffer address. The client must ensure that the memory + * array is big enough to hold the data. + * + * @inout: + * length :: + * If the `length' parameter is NULL, then try to load the whole table. + * Return an error code if it fails. + * + * Else, if `*length' is~0, exit immediately while returning the + * table's (or file) full size in it. + * + * Else the number of bytes to read from the table or file, from the + * starting offset. + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * If you need to determine the table's length you should first call this + * function with `*length' set to~0, as in the following example: + * + * { + * FT_ULong length = 0; + * + * + * error = FT_Load_Sfnt_Table( face, tag, 0, NULL, &length ); + * if ( error ) { ... table does not exist ... } + * + * buffer = malloc( length ); + * if ( buffer == NULL ) { ... not enough memory ... } + * + * error = FT_Load_Sfnt_Table( face, tag, 0, buffer, &length ); + * if ( error ) { ... could not load table ... } + * } + */ + FT_EXPORT( FT_Error ) + FT_Load_Sfnt_Table( FT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte* buffer, + FT_ULong* length ); + + + /************************************************************************** + * + * @function: + * FT_Sfnt_Table_Info + * + * @description: + * Return information on an SFNT table. + * + * @input: + * face :: + * A handle to the source face. + * + * table_index :: + * The index of an SFNT table. The function returns + * FT_Err_Table_Missing for an invalid value. + * + * @inout: + * tag :: + * The name tag of the SFNT table. If the value is NULL, `table_index' + * is ignored, and `length' returns the number of SFNT tables in the + * font. + * + * @output: + * length :: + * The length of the SFNT table (or the number of SFNT tables, depending + * on `tag'). + * + * @return: + * FreeType error code. 0~means success. + * + * @note: + * SFNT tables with length zero are treated as missing. + * + */ + FT_EXPORT( FT_Error ) + FT_Sfnt_Table_Info( FT_Face face, + FT_UInt table_index, + FT_ULong *tag, + FT_ULong *length ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_CMap_Language_ID */ + /* */ + /* <Description> */ + /* Return TrueType/sfnt specific cmap language ID. Definitions of */ + /* language ID values are in `freetype/ttnameid.h'. */ + /* */ + /* <Input> */ + /* charmap :: */ + /* The target charmap. */ + /* */ + /* <Return> */ + /* The language ID of `charmap'. If `charmap' doesn't belong to a */ + /* TrueType/sfnt face, just return~0 as the default value. */ + /* */ + FT_EXPORT( FT_ULong ) + FT_Get_CMap_Language_ID( FT_CharMap charmap ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Get_CMap_Format */ + /* */ + /* <Description> */ + /* Return TrueType/sfnt specific cmap format. */ + /* */ + /* <Input> */ + /* charmap :: */ + /* The target charmap. */ + /* */ + /* <Return> */ + /* The format of `charmap'. If `charmap' doesn't belong to a */ + /* TrueType/sfnt face, return -1. */ + /* */ + FT_EXPORT( FT_Long ) + FT_Get_CMap_Format( FT_CharMap charmap ); + + /* */ + + +FT_END_HEADER + +#endif /* __TTTABLES_H__ */ + + +/* END */ diff --git a/include/freetype/tttags.h b/include/freetype/tttags.h new file mode 100644 index 0000000..307ce4b --- /dev/null +++ b/include/freetype/tttags.h @@ -0,0 +1,107 @@ +/***************************************************************************/ +/* */ +/* tttags.h */ +/* */ +/* Tags for TrueType and OpenType tables (specification only). */ +/* */ +/* Copyright 1996-2001, 2004, 2005, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTAGS_H__ +#define __TTAGS_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + +#define TTAG_avar FT_MAKE_TAG( 'a', 'v', 'a', 'r' ) +#define TTAG_BASE FT_MAKE_TAG( 'B', 'A', 'S', 'E' ) +#define TTAG_bdat FT_MAKE_TAG( 'b', 'd', 'a', 't' ) +#define TTAG_BDF FT_MAKE_TAG( 'B', 'D', 'F', ' ' ) +#define TTAG_bhed FT_MAKE_TAG( 'b', 'h', 'e', 'd' ) +#define TTAG_bloc FT_MAKE_TAG( 'b', 'l', 'o', 'c' ) +#define TTAG_bsln FT_MAKE_TAG( 'b', 's', 'l', 'n' ) +#define TTAG_CFF FT_MAKE_TAG( 'C', 'F', 'F', ' ' ) +#define TTAG_CID FT_MAKE_TAG( 'C', 'I', 'D', ' ' ) +#define TTAG_cmap FT_MAKE_TAG( 'c', 'm', 'a', 'p' ) +#define TTAG_cvar FT_MAKE_TAG( 'c', 'v', 'a', 'r' ) +#define TTAG_cvt FT_MAKE_TAG( 'c', 'v', 't', ' ' ) +#define TTAG_DSIG FT_MAKE_TAG( 'D', 'S', 'I', 'G' ) +#define TTAG_EBDT FT_MAKE_TAG( 'E', 'B', 'D', 'T' ) +#define TTAG_EBLC FT_MAKE_TAG( 'E', 'B', 'L', 'C' ) +#define TTAG_EBSC FT_MAKE_TAG( 'E', 'B', 'S', 'C' ) +#define TTAG_feat FT_MAKE_TAG( 'f', 'e', 'a', 't' ) +#define TTAG_FOND FT_MAKE_TAG( 'F', 'O', 'N', 'D' ) +#define TTAG_fpgm FT_MAKE_TAG( 'f', 'p', 'g', 'm' ) +#define TTAG_fvar FT_MAKE_TAG( 'f', 'v', 'a', 'r' ) +#define TTAG_gasp FT_MAKE_TAG( 'g', 'a', 's', 'p' ) +#define TTAG_GDEF FT_MAKE_TAG( 'G', 'D', 'E', 'F' ) +#define TTAG_glyf FT_MAKE_TAG( 'g', 'l', 'y', 'f' ) +#define TTAG_GPOS FT_MAKE_TAG( 'G', 'P', 'O', 'S' ) +#define TTAG_GSUB FT_MAKE_TAG( 'G', 'S', 'U', 'B' ) +#define TTAG_gvar FT_MAKE_TAG( 'g', 'v', 'a', 'r' ) +#define TTAG_hdmx FT_MAKE_TAG( 'h', 'd', 'm', 'x' ) +#define TTAG_head FT_MAKE_TAG( 'h', 'e', 'a', 'd' ) +#define TTAG_hhea FT_MAKE_TAG( 'h', 'h', 'e', 'a' ) +#define TTAG_hmtx FT_MAKE_TAG( 'h', 'm', 't', 'x' ) +#define TTAG_JSTF FT_MAKE_TAG( 'J', 'S', 'T', 'F' ) +#define TTAG_just FT_MAKE_TAG( 'j', 'u', 's', 't' ) +#define TTAG_kern FT_MAKE_TAG( 'k', 'e', 'r', 'n' ) +#define TTAG_lcar FT_MAKE_TAG( 'l', 'c', 'a', 'r' ) +#define TTAG_loca FT_MAKE_TAG( 'l', 'o', 'c', 'a' ) +#define TTAG_LTSH FT_MAKE_TAG( 'L', 'T', 'S', 'H' ) +#define TTAG_LWFN FT_MAKE_TAG( 'L', 'W', 'F', 'N' ) +#define TTAG_MATH FT_MAKE_TAG( 'M', 'A', 'T', 'H' ) +#define TTAG_maxp FT_MAKE_TAG( 'm', 'a', 'x', 'p' ) +#define TTAG_META FT_MAKE_TAG( 'M', 'E', 'T', 'A' ) +#define TTAG_MMFX FT_MAKE_TAG( 'M', 'M', 'F', 'X' ) +#define TTAG_MMSD FT_MAKE_TAG( 'M', 'M', 'S', 'D' ) +#define TTAG_mort FT_MAKE_TAG( 'm', 'o', 'r', 't' ) +#define TTAG_morx FT_MAKE_TAG( 'm', 'o', 'r', 'x' ) +#define TTAG_name FT_MAKE_TAG( 'n', 'a', 'm', 'e' ) +#define TTAG_opbd FT_MAKE_TAG( 'o', 'p', 'b', 'd' ) +#define TTAG_OS2 FT_MAKE_TAG( 'O', 'S', '/', '2' ) +#define TTAG_OTTO FT_MAKE_TAG( 'O', 'T', 'T', 'O' ) +#define TTAG_PCLT FT_MAKE_TAG( 'P', 'C', 'L', 'T' ) +#define TTAG_POST FT_MAKE_TAG( 'P', 'O', 'S', 'T' ) +#define TTAG_post FT_MAKE_TAG( 'p', 'o', 's', 't' ) +#define TTAG_prep FT_MAKE_TAG( 'p', 'r', 'e', 'p' ) +#define TTAG_prop FT_MAKE_TAG( 'p', 'r', 'o', 'p' ) +#define TTAG_sfnt FT_MAKE_TAG( 's', 'f', 'n', 't' ) +#define TTAG_SING FT_MAKE_TAG( 'S', 'I', 'N', 'G' ) +#define TTAG_trak FT_MAKE_TAG( 't', 'r', 'a', 'k' ) +#define TTAG_true FT_MAKE_TAG( 't', 'r', 'u', 'e' ) +#define TTAG_ttc FT_MAKE_TAG( 't', 't', 'c', ' ' ) +#define TTAG_ttcf FT_MAKE_TAG( 't', 't', 'c', 'f' ) +#define TTAG_TYP1 FT_MAKE_TAG( 'T', 'Y', 'P', '1' ) +#define TTAG_typ1 FT_MAKE_TAG( 't', 'y', 'p', '1' ) +#define TTAG_VDMX FT_MAKE_TAG( 'V', 'D', 'M', 'X' ) +#define TTAG_vhea FT_MAKE_TAG( 'v', 'h', 'e', 'a' ) +#define TTAG_vmtx FT_MAKE_TAG( 'v', 'm', 't', 'x' ) + + +FT_END_HEADER + +#endif /* __TTAGS_H__ */ + + +/* END */ diff --git a/include/freetype/ttunpat.h b/include/freetype/ttunpat.h new file mode 100644 index 0000000..a016275 --- /dev/null +++ b/include/freetype/ttunpat.h @@ -0,0 +1,59 @@ +/***************************************************************************/ +/* */ +/* ttunpat.h */ +/* */ +/* Definitions for the unpatented TrueType hinting system */ +/* */ +/* Copyright 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* Written by Graham Asher <graham.asher@btinternet.com> */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTUNPAT_H__ +#define __TTUNPAT_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + + +FT_BEGIN_HEADER + + + /*************************************************************************** + * + * @constant: + * FT_PARAM_TAG_UNPATENTED_HINTING + * + * @description: + * A constant used as the tag of an @FT_Parameter structure to indicate + * that unpatented methods only should be used by the TrueType bytecode + * interpreter for a typeface opened by @FT_Open_Face. + * + */ +#define FT_PARAM_TAG_UNPATENTED_HINTING FT_MAKE_TAG( 'u', 'n', 'p', 'a' ) + + /* */ + +FT_END_HEADER + + +#endif /* __TTUNPAT_H__ */ + + +/* END */ diff --git a/include/ft2build.h b/include/ft2build.h new file mode 100644 index 0000000..923d887 --- /dev/null +++ b/include/ft2build.h @@ -0,0 +1,39 @@ +/***************************************************************************/ +/* */ +/* ft2build.h */ +/* */ +/* FreeType 2 build and setup macros. */ +/* (Generic version) */ +/* */ +/* Copyright 1996-2001, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file corresponds to the default `ft2build.h' file for */ + /* FreeType 2. It uses the `freetype' include root. */ + /* */ + /* Note that specific platforms might use a different configuration. */ + /* See builds/unix/ft2unix.h for an example. */ + /* */ + /*************************************************************************/ + + +#ifndef __FT2_BUILD_GENERIC_H__ +#define __FT2_BUILD_GENERIC_H__ + +#include <freetype/config/ftheader.h> + +#endif /* __FT2_BUILD_GENERIC_H__ */ + + +/* END */ diff --git a/modules.cfg b/modules.cfg new file mode 100644 index 0000000..a85378e --- /dev/null +++ b/modules.cfg @@ -0,0 +1,255 @@ +# modules.cfg +# +# Copyright 2005-2007, 2009-2011 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. +# +# +# In case you compile the FreeType library with GNU make or makepp, this +# file controls which components are built into the library. Otherwise, +# please read this file for information on the various modules and its +# dependencies, then follow the instructions in the file `docs/INSTALL.ANY'. +# +# To deactivate a module, simply comment out the corresponding line. To +# activate a module, remove the comment character. +# +# Note that many modules and components are further controlled with macros +# in the file `include/freetype/config/ftoption.h'. + + +#### +#### font modules -- at least one is required +#### +#### The order given here (from top to down) is the order used for testing +#### font formats in the compiled library. +#### + +# TrueType font driver. +# +# This driver needs the `sfnt' module. +FONT_MODULES += truetype + +# PostScript Type 1 font driver. +# +# This driver needs the `psaux', `pshinter', and `psnames' modules. +FONT_MODULES += type1 + +# CFF/OpenType font driver. +# +# This driver needs the `sfnt', `pshinter', and `psnames' modules. +FONT_MODULES += cff + +# Type 1 CID-keyed font driver. +# +# This driver needs the `psaux', `pshinter', and `psnames' modules. +FONT_MODULES += cid + +# PFR/TrueDoc font driver. See optional extension ftpfr.c below also. +FONT_MODULES += pfr + +# PostScript Type 42 font driver. +# +# This driver needs the `truetype' and `psaux' modules. +FONT_MODULES += type42 + +# Windows FONT/FNT font driver. See optional extension ftwinfnt.c below +# also. +FONT_MODULES += winfonts + +# PCF font driver. +FONT_MODULES += pcf + +# BDF font driver. See optional extension ftbdf.c below also. +FONT_MODULES += bdf + +# SFNT files support. If used without `truetype' or `cff', it supports +# bitmap-only fonts within an SFNT wrapper. +# +# This driver needs the `psnames' module. +FONT_MODULES += sfnt + + +#### +#### hinting modules +#### + +# FreeType's auto hinter. +HINTING_MODULES += autofit + +# PostScript hinter. +HINTING_MODULES += pshinter + +# The TrueType hinting engine doesn't have a module of its own but is +# controlled in file include/freetype/config/ftoption.h +# (TT_CONFIG_OPTION_BYTECODE_INTERPRETER and friends). + + +#### +#### raster modules -- at least one is required for vector font formats +#### + +# Monochrome rasterizer. +RASTER_MODULES += raster + +# Anti-aliasing rasterizer. +RASTER_MODULES += smooth + + +#### +#### auxiliary modules +#### + +# FreeType's cache sub-system (quite stable but still in beta -- this means +# that its public API is subject to change if necessary). See +# include/freetype/ftcache.h. Needs ftglyph.c. +AUX_MODULES += cache + +# TrueType GX/AAT table validation. Needs ftgxval.c below. +# AUX_MODULES += gxvalid + +# Support for streams compressed with gzip (files with suffix .gz). +# +# See include/freetype/ftgzip.h for the API. +AUX_MODULES += gzip + +# Support for streams compressed with LZW (files with suffix .Z). +# +# See include/freetype/ftlzw.h for the API. +AUX_MODULES += lzw + +# Support for streams compressed with bzip2 (files with suffix .bz2). +# +# See include/freetype/ftbzip2.h for the API. +AUX_MODULES += bzip2 + +# OpenType table validation. Needs ftotval.c below. +# +# AUX_MODULES += otvalid + +# Auxiliary PostScript driver component to share common code. +# +# This module depends on `psnames'. +AUX_MODULES += psaux + +# Support for PostScript glyph names. +# +# This module can be controlled in ftconfig.h +# (FT_CONFIG_OPTION_POSTSCRIPT_NAMES). +AUX_MODULES += psnames + + +#### +#### base module extensions +#### + +# Exact bounding box calculation. +# +# See include/freetype/ftbbox.h for the API. +BASE_EXTENSIONS += ftbbox.c + +# Access BDF-specific strings. Needs BDF font driver. +# +# See include/freetype/ftbdf.h for the API. +BASE_EXTENSIONS += ftbdf.c + +# Utility functions for converting 1bpp, 2bpp, 4bpp, and 8bpp bitmaps into +# 8bpp format, and for emboldening of bitmap glyphs. +# +# See include/freetype/ftbitmap.h for the API. +BASE_EXTENSIONS += ftbitmap.c + +# Access CID font information. +# +# See include/freetype/ftcid.h for the API. +BASE_EXTENSIONS += ftcid.c + +# Access FSType information. Needs fttype1.c. +# +# See include/freetype/freetype.h for the API. +BASE_EXTENSIONS += ftfstype.c + +# Support for GASP table queries. +# +# See include/freetype/ftgasp.h for the API. +BASE_EXTENSIONS += ftgasp.c + +# Convenience functions to handle glyphs. Needs ftbitmap.c. +# +# See include/freetype/ftglyph.h for the API. +BASE_EXTENSIONS += ftglyph.c + +# Interface for gxvalid module. +# +# See include/freetype/ftgxval.h for the API. +BASE_EXTENSIONS += ftgxval.c + +# Support for LCD color filtering of subpixel bitmaps. +# +# See include/freetype/ftlcdfil.h for the API. +BASE_EXTENSIONS += ftlcdfil.c + +# Multiple Master font interface. +# +# See include/freetype/ftmm.h for the API. +BASE_EXTENSIONS += ftmm.c + +# Interface for otvalid module. +# +# See include/freetype/ftotval.h for the API. +BASE_EXTENSIONS += ftotval.c + +# Support for FT_Face_CheckTrueTypePatents. +# +# See include/freetype/freetype.h for the API. +BASE_EXTENSIONS += ftpatent.c + +# Interface for accessing PFR-specific data. Needs PFR font driver. +# +# See include/freetype/ftpfr.h for the API. +BASE_EXTENSIONS += ftpfr.c + +# Path stroker. Needs ftglyph.c. +# +# See include/freetype/ftstroke.h for the API. +BASE_EXTENSIONS += ftstroke.c + +# Support for synthetic embolding and slanting of fonts. Needs ftbitmap.c. +# +# See include/freetype/ftsynth.h for the API. +BASE_EXTENSIONS += ftsynth.c + +# Interface to access data specific to PostScript Type 1 and Type 2 (CFF) +# fonts. +# +# See include/freetype/t1tables.h for the API. +BASE_EXTENSIONS += fttype1.c + +# Interface for accessing data specific to Windows FNT files. Needs winfnt +# driver. +# +# See include/freetype/ftwinfnt.h for the API. +BASE_EXTENSIONS += ftwinfnt.c + +# Support functions for X11. +# +# See include/freetype/ftxf86.h for the API. +BASE_EXTENSIONS += ftxf86.c + +#### +#### The components `ftsystem.c' (for memory allocation and stream I/O +#### management) and `ftdebug.c' (for emitting debug messages to the user) +#### are controlled with the following variables. +#### +#### ftsystem.c: $(FTSYS_SRC) +#### ftdebug.c: $(FTDEBUG_SRC) +#### +#### Please refer to docs/CUSTOMIZE for details. +#### + + +# EOF diff --git a/objs/.gitignore b/objs/.gitignore new file mode 100644 index 0000000..ad264ce --- /dev/null +++ b/objs/.gitignore @@ -0,0 +1,9 @@ +apinames +freetype.def +freetype.lib +ftexport.sym +ftmodule.h +ftoption.h +libfreetype.la +.libs +*.lo diff --git a/objs/README b/objs/README new file mode 100644 index 0000000..befb63e --- /dev/null +++ b/objs/README @@ -0,0 +1,2 @@ +This directory contains all the object files created when building the +library. diff --git a/packaging/freetype.manifest b/packaging/freetype.manifest new file mode 100644 index 0000000..97e8c31 --- /dev/null +++ b/packaging/freetype.manifest @@ -0,0 +1,5 @@ +<manifest> + <request> + <domain name="_"/> + </request> +</manifest> diff --git a/packaging/freetype.spec b/packaging/freetype.spec new file mode 100644 index 0000000..675e916 --- /dev/null +++ b/packaging/freetype.spec @@ -0,0 +1,106 @@ +Name: freetype +Summary: A free and portable font rendering engine +Version: 2.4.9 +Release: 1 +Group: System/Libraries +License: FTL or GPLv2+ +URL: http://www.freetype.org +Source0: http://download.savannah.gnu.org/releases-noredirect/freetype/freetype-%{version}.tar.gz +Source1001: packaging/freetype.manifest +Requires(post): /sbin/ldconfig +Requires(postun): /sbin/ldconfig +Provides: %{name}-bytecode + + +%description +The FreeType engine is a free and portable font rendering +engine, developed to provide advanced font support for a variety of +platforms and environments. FreeType is a library which can open and +manages font files as well as efficiently load, hint and render +individual glyphs. FreeType is not a font server or a complete +text-rendering library. + + + +%package devel +Summary: FreeType development libraries and header files +Group: Development/Libraries +Requires: %{name} = %{version}-%{release} +Requires: zlib-devel +Requires: pkgconfig + +%description devel +The freetype-devel package includes the static libraries and header files +for the FreeType font rendering engine. + +Install freetype-devel if you want to develop programs which will use +FreeType. + + + +%prep +%setup -q + +%build +cp %{SOURCE1001} . + +%configure --disable-static +sed -i 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g' builds/unix/libtool +sed -i 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' builds/unix/libtool +make %{?_smp_mflags} + +%install +rm -rf %{buildroot} + +%makeinstall gnulocaledir=$RPM_BUILD_ROOT%{_datadir}/locale + + +# fix multilib issues +%ifarch x86_64 s390x ia64 ppc64 alpha sparc64 +%define wordsize 64 +%else +%define wordsize 32 +%endif + +mv $RPM_BUILD_ROOT%{_includedir}/freetype2/freetype/config/ftconfig.h \ +$RPM_BUILD_ROOT%{_includedir}/freetype2/freetype/config/ftconfig-%{wordsize}.h +cat >$RPM_BUILD_ROOT%{_includedir}/freetype2/freetype/config/ftconfig.h <<EOF +#ifndef __FTCONFIG_H__MULTILIB +#define __FTCONFIG_H__MULTILIB + +#include <bits/wordsize.h> + +#if __WORDSIZE == 32 +# include "ftconfig-32.h" +#elif __WORDSIZE == 64 +# include "ftconfig-64.h" +#else +# error "unexpected value for __WORDSIZE macro" +#endif + +#endif +EOF + +# Don't package static a or .la files +rm -f $RPM_BUILD_ROOT%{_libdir}/*.{a,la} + + +%post -p /sbin/ldconfig + +%postun -p /sbin/ldconfig + +%files +%manifest freetype.manifest +%defattr(-,root,root,-) +%{_libdir}/libfreetype.so.* + +%files devel +%defattr(-,root,root,-) +%dir %{_includedir}/freetype2 +%{_datadir}/aclocal/freetype2.m4 +%{_includedir}/freetype2/* +%{_includedir}/*.h +%{_libdir}/libfreetype.so +%{_bindir}/freetype-config +%{_libdir}/pkgconfig/*.pc + diff --git a/src/Jamfile b/src/Jamfile new file mode 100644 index 0000000..76ee0f4 --- /dev/null +++ b/src/Jamfile @@ -0,0 +1,25 @@ +# FreeType 2 src Jamfile +# +# Copyright 2001, 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) ; + +# The file <freetype/internal/internal.h> is used to define macros that are +# later used in #include statements. It needs to be parsed in order to +# record these definitions. +# +HDRMACRO [ FT2_SubDir $(FT2_INCLUDE_DIR) internal internal.h ] ; + +for xx in $(FT2_COMPONENTS) +{ + SubInclude FT2_TOP $(FT2_SRC_DIR) $(xx) ; +} + +# end of src Jamfile diff --git a/src/autofit/Jamfile b/src/autofit/Jamfile new file mode 100644 index 0000000..2714765 --- /dev/null +++ b/src/autofit/Jamfile @@ -0,0 +1,39 @@ +# FreeType 2 src/autofit Jamfile +# +# Copyright 2003, 2004, 2005, 2006, 2007, 2009 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP src autofit ; + +{ + local _sources ; + + # define FT2_AUTOFIT2 to enable experimental latin hinter replacement + if $(FT2_AUTOFIT2) + { + DEFINES += FT_OPTION_AUTOFIT2 ; + } + if $(FT2_MULTI) + { + _sources = afangles afglobal afhints aflatin afcjk afindic afloader afmodule afdummy afwarp afpic ; + + if $(FT2_AUTOFIT2) + { + _sources += aflatin2 ; + } + } + else + { + _sources = autofit ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/autofit Jamfile diff --git a/src/autofit/afangles.c b/src/autofit/afangles.c new file mode 100644 index 0000000..790af17 --- /dev/null +++ b/src/autofit/afangles.c @@ -0,0 +1,292 @@ +/***************************************************************************/ +/* */ +/* afangles.c */ +/* */ +/* Routines used to compute vector angles with limited accuracy */ +/* and very high speed. It also contains sorting routines (body). */ +/* */ +/* Copyright 2003-2006, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "aftypes.h" + + +#if 0 + + FT_LOCAL_DEF( FT_Int ) + af_corner_is_flat( FT_Pos x_in, + FT_Pos y_in, + FT_Pos x_out, + FT_Pos y_out ) + { + FT_Pos ax = x_in; + FT_Pos ay = y_in; + + FT_Pos d_in, d_out, d_corner; + + + if ( ax < 0 ) + ax = -ax; + if ( ay < 0 ) + ay = -ay; + d_in = ax + ay; + + ax = x_out; + if ( ax < 0 ) + ax = -ax; + ay = y_out; + if ( ay < 0 ) + ay = -ay; + d_out = ax + ay; + + ax = x_out + x_in; + if ( ax < 0 ) + ax = -ax; + ay = y_out + y_in; + if ( ay < 0 ) + ay = -ay; + d_corner = ax + ay; + + return ( d_in + d_out - d_corner ) < ( d_corner >> 4 ); + } + + + FT_LOCAL_DEF( FT_Int ) + af_corner_orientation( FT_Pos x_in, + FT_Pos y_in, + FT_Pos x_out, + FT_Pos y_out ) + { + FT_Pos delta; + + + delta = x_in * y_out - y_in * x_out; + + if ( delta == 0 ) + return 0; + else + return 1 - 2 * ( delta < 0 ); + } + +#endif /* 0 */ + + + /* + * We are not using `af_angle_atan' anymore, but we keep the source + * code below just in case... + */ + + +#if 0 + + + /* + * The trick here is to realize that we don't need a very accurate angle + * approximation. We are going to use the result of `af_angle_atan' to + * only compare the sign of angle differences, or check whether its + * magnitude is very small. + * + * The approximation + * + * dy * PI / (|dx|+|dy|) + * + * should be enough, and much faster to compute. + */ + FT_LOCAL_DEF( AF_Angle ) + af_angle_atan( FT_Fixed dx, + FT_Fixed dy ) + { + AF_Angle angle; + FT_Fixed ax = dx; + FT_Fixed ay = dy; + + + if ( ax < 0 ) + ax = -ax; + if ( ay < 0 ) + ay = -ay; + + ax += ay; + + if ( ax == 0 ) + angle = 0; + else + { + angle = ( AF_ANGLE_PI2 * dy ) / ( ax + ay ); + if ( dx < 0 ) + { + if ( angle >= 0 ) + angle = AF_ANGLE_PI - angle; + else + angle = -AF_ANGLE_PI - angle; + } + } + + return angle; + } + + +#elif 0 + + + /* the following table has been automatically generated with */ + /* the `mather.py' Python script */ + +#define AF_ATAN_BITS 8 + + static const FT_Byte af_arctan[1L << AF_ATAN_BITS] = + { + 0, 0, 1, 1, 1, 2, 2, 2, + 3, 3, 3, 3, 4, 4, 4, 5, + 5, 5, 6, 6, 6, 7, 7, 7, + 8, 8, 8, 9, 9, 9, 10, 10, + 10, 10, 11, 11, 11, 12, 12, 12, + 13, 13, 13, 14, 14, 14, 14, 15, + 15, 15, 16, 16, 16, 17, 17, 17, + 18, 18, 18, 18, 19, 19, 19, 20, + 20, 20, 21, 21, 21, 21, 22, 22, + 22, 23, 23, 23, 24, 24, 24, 24, + 25, 25, 25, 26, 26, 26, 26, 27, + 27, 27, 28, 28, 28, 28, 29, 29, + 29, 30, 30, 30, 30, 31, 31, 31, + 31, 32, 32, 32, 33, 33, 33, 33, + 34, 34, 34, 34, 35, 35, 35, 35, + 36, 36, 36, 36, 37, 37, 37, 38, + 38, 38, 38, 39, 39, 39, 39, 40, + 40, 40, 40, 41, 41, 41, 41, 42, + 42, 42, 42, 42, 43, 43, 43, 43, + 44, 44, 44, 44, 45, 45, 45, 45, + 46, 46, 46, 46, 46, 47, 47, 47, + 47, 48, 48, 48, 48, 48, 49, 49, + 49, 49, 50, 50, 50, 50, 50, 51, + 51, 51, 51, 51, 52, 52, 52, 52, + 52, 53, 53, 53, 53, 53, 54, 54, + 54, 54, 54, 55, 55, 55, 55, 55, + 56, 56, 56, 56, 56, 57, 57, 57, + 57, 57, 57, 58, 58, 58, 58, 58, + 59, 59, 59, 59, 59, 59, 60, 60, + 60, 60, 60, 61, 61, 61, 61, 61, + 61, 62, 62, 62, 62, 62, 62, 63, + 63, 63, 63, 63, 63, 64, 64, 64 + }; + + + FT_LOCAL_DEF( AF_Angle ) + af_angle_atan( FT_Fixed dx, + FT_Fixed dy ) + { + AF_Angle angle; + + + /* check trivial cases */ + if ( dy == 0 ) + { + angle = 0; + if ( dx < 0 ) + angle = AF_ANGLE_PI; + return angle; + } + else if ( dx == 0 ) + { + angle = AF_ANGLE_PI2; + if ( dy < 0 ) + angle = -AF_ANGLE_PI2; + return angle; + } + + angle = 0; + if ( dx < 0 ) + { + dx = -dx; + dy = -dy; + angle = AF_ANGLE_PI; + } + + if ( dy < 0 ) + { + FT_Pos tmp; + + + tmp = dx; + dx = -dy; + dy = tmp; + angle -= AF_ANGLE_PI2; + } + + if ( dx == 0 && dy == 0 ) + return 0; + + if ( dx == dy ) + angle += AF_ANGLE_PI4; + else if ( dx > dy ) + angle += af_arctan[FT_DivFix( dy, dx ) >> ( 16 - AF_ATAN_BITS )]; + else + angle += AF_ANGLE_PI2 - + af_arctan[FT_DivFix( dx, dy ) >> ( 16 - AF_ATAN_BITS )]; + + if ( angle > AF_ANGLE_PI ) + angle -= AF_ANGLE_2PI; + + return angle; + } + + +#endif /* 0 */ + + + FT_LOCAL_DEF( void ) + af_sort_pos( FT_UInt count, + FT_Pos* table ) + { + FT_UInt i, j; + FT_Pos swap; + + + for ( i = 1; i < count; i++ ) + { + for ( j = i; j > 0; j-- ) + { + if ( table[j] > table[j - 1] ) + break; + + swap = table[j]; + table[j] = table[j - 1]; + table[j - 1] = swap; + } + } + } + + + FT_LOCAL_DEF( void ) + af_sort_widths( FT_UInt count, + AF_Width table ) + { + FT_UInt i, j; + AF_WidthRec swap; + + + for ( i = 1; i < count; i++ ) + { + for ( j = i; j > 0; j-- ) + { + if ( table[j].org > table[j - 1].org ) + break; + + swap = table[j]; + table[j] = table[j - 1]; + table[j - 1] = swap; + } + } + } + + +/* END */ diff --git a/src/autofit/afangles.h b/src/autofit/afangles.h new file mode 100644 index 0000000..f33f9e1 --- /dev/null +++ b/src/autofit/afangles.h @@ -0,0 +1,7 @@ +/* + * afangles.h + * + * This is a dummy file, used to please the build system. It is never + * included by the auto-fitter sources. + * + */ diff --git a/src/autofit/afcjk.c b/src/autofit/afcjk.c new file mode 100644 index 0000000..8e407c8 --- /dev/null +++ b/src/autofit/afcjk.c @@ -0,0 +1,2267 @@ +/***************************************************************************/ +/* */ +/* afcjk.c */ +/* */ +/* Auto-fitter hinting routines for CJK script (body). */ +/* */ +/* Copyright 2006-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /* + * The algorithm is based on akito's autohint patch, available here: + * + * http://www.kde.gr.jp/~akito/patch/freetype2/ + * + */ + +#include <ft2build.h> +#include FT_ADVANCES_H +#include FT_INTERNAL_DEBUG_H + +#include "aftypes.h" +#include "aflatin.h" + + +#ifdef AF_CONFIG_OPTION_CJK + +#undef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT + +#include "afcjk.h" +#include "aferrors.h" + + +#ifdef AF_CONFIG_OPTION_USE_WARPER +#include "afwarp.h" +#endif + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_afcjk + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** C J K G L O B A L M E T R I C S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* Basically the Latin version with AF_CJKMetrics */ + /* to replace AF_LatinMetrics. */ + + FT_LOCAL_DEF( void ) + af_cjk_metrics_init_widths( AF_CJKMetrics metrics, + FT_Face face, + FT_ULong charcode ) + { + /* scan the array of segments in each direction */ + AF_GlyphHintsRec hints[1]; + + + af_glyph_hints_init( hints, face->memory ); + + metrics->axis[AF_DIMENSION_HORZ].width_count = 0; + metrics->axis[AF_DIMENSION_VERT].width_count = 0; + + { + FT_Error error; + FT_UInt glyph_index; + int dim; + AF_CJKMetricsRec dummy[1]; + AF_Scaler scaler = &dummy->root.scaler; + + + glyph_index = FT_Get_Char_Index( face, charcode ); + if ( glyph_index == 0 ) + goto Exit; + + error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); + if ( error || face->glyph->outline.n_points <= 0 ) + goto Exit; + + FT_ZERO( dummy ); + + dummy->units_per_em = metrics->units_per_em; + + scaler->x_scale = 0x10000L; + scaler->y_scale = 0x10000L; + scaler->x_delta = 0; + scaler->y_delta = 0; + + scaler->face = face; + scaler->render_mode = FT_RENDER_MODE_NORMAL; + scaler->flags = 0; + + af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy ); + + error = af_glyph_hints_reload( hints, &face->glyph->outline ); + if ( error ) + goto Exit; + + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_CJKAxis axis = &metrics->axis[dim]; + AF_AxisHints axhints = &hints->axis[dim]; + AF_Segment seg, limit, link; + FT_UInt num_widths = 0; + + + error = af_latin_hints_compute_segments( hints, (AF_Dimension)dim ); + if ( error ) + goto Exit; + + af_latin_hints_link_segments( hints, (AF_Dimension)dim ); + + seg = axhints->segments; + limit = seg + axhints->num_segments; + + for ( ; seg < limit; seg++ ) + { + link = seg->link; + + /* we only consider stem segments there! */ + if ( link && link->link == seg && link > seg ) + { + FT_Pos dist; + + + dist = seg->pos - link->pos; + if ( dist < 0 ) + dist = -dist; + + if ( num_widths < AF_CJK_MAX_WIDTHS ) + axis->widths[num_widths++].org = dist; + } + } + + af_sort_widths( num_widths, axis->widths ); + axis->width_count = num_widths; + } + + Exit: + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_CJKAxis axis = &metrics->axis[dim]; + FT_Pos stdw; + + + stdw = ( axis->width_count > 0 ) ? axis->widths[0].org + : AF_LATIN_CONSTANT( metrics, 50 ); + + /* let's try 20% of the smallest width */ + axis->edge_distance_threshold = stdw / 5; + axis->standard_width = stdw; + axis->extra_light = 0; + } + } + + af_glyph_hints_done( hints ); + } + + +#define AF_CJK_MAX_TEST_CHARACTERS 32 + + + /* Each blue zone has two types of fill and unfill, this is, */ + /* filling the entire glyph square or not. */ + + enum + { + AF_CJK_BLUE_TYPE_FILL, + AF_CJK_BLUE_TYPE_UNFILL, + AF_CJK_BLUE_TYPE_MAX + }; + + + /* Put some common and representative Han Ideographs characters here. */ + static const FT_ULong af_cjk_hani_blue_chars[AF_CJK_BLUE_MAX] + [AF_CJK_BLUE_TYPE_MAX] + [AF_CJK_MAX_TEST_CHARACTERS] = + { + { + { + 0x4ED6, 0x4EEC, 0x4F60, 0x4F86, 0x5011, 0x5230, 0x548C, 0x5730, + 0x5BF9, 0x5C0D, 0x5C31, 0x5E2D, 0x6211, 0x65F6, 0x6642, 0x6703, + 0x6765, 0x70BA, 0x80FD, 0x8230, 0x8AAA, 0x8BF4, 0x8FD9, 0x9019, + 0x9F4A /* top fill */ + }, + { + 0x519B, 0x540C, 0x5DF2, 0x613F, 0x65E2, 0x661F, 0x662F, 0x666F, + 0x6C11, 0x7167, 0x73B0, 0x73FE, 0x7406, 0x7528, 0x7F6E, 0x8981, + 0x8ECD, 0x90A3, 0x914D, 0x91CC, 0x958B, 0x96F7, 0x9732, 0x9762, + 0x987E /* top unfill */ + } + }, + { + { + 0x4E2A, 0x4E3A, 0x4EBA, 0x4ED6, 0x4EE5, 0x4EEC, 0x4F60, 0x4F86, + 0x500B, 0x5011, 0x5230, 0x548C, 0x5927, 0x5BF9, 0x5C0D, 0x5C31, + 0x6211, 0x65F6, 0x6642, 0x6709, 0x6765, 0x70BA, 0x8981, 0x8AAA, + 0x8BF4 /* bottom fill */ + }, + { + 0x4E3B, 0x4E9B, 0x56E0, 0x5B83, 0x60F3, 0x610F, 0x7406, 0x751F, + 0x7576, 0x770B, 0x7740, 0x7F6E, 0x8005, 0x81EA, 0x8457, 0x88E1, + 0x8FC7, 0x8FD8, 0x8FDB, 0x9032, 0x904E, 0x9053, 0x9084, 0x91CC, + 0x9762 /* bottom unfill */ + } + }, +#ifndef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT + { {0x0000}, {0x0000} }, + { {0x0000}, {0x0000} } +#else + { + { + 0x4E9B, 0x4EEC, 0x4F60, 0x4F86, 0x5011, 0x5230, 0x548C, 0x5730, + 0x5979, 0x5C06, 0x5C07, 0x5C31, 0x5E74, 0x5F97, 0x60C5, 0x6700, + 0x6837, 0x6A23, 0x7406, 0x80FD, 0x8AAA, 0x8BF4, 0x8FD9, 0x9019, + 0x901A /* left fill */ + }, + { + 0x5373, 0x5417, 0x5427, 0x542C, 0x5462, 0x54C1, 0x54CD, 0x55CE, + 0x5E08, 0x5E2B, 0x6536, 0x65AD, 0x65B7, 0x660E, 0x773C, 0x9593, + 0x95F4, 0x9645, 0x9648, 0x9650, 0x9664, 0x9673, 0x968F, 0x969B, + 0x96A8 /* left unfill */ + } + }, + { + { + 0x4E8B, 0x524D, 0x5B78, 0x5C06, 0x5C07, 0x60C5, 0x60F3, 0x6216, + 0x653F, 0x65AF, 0x65B0, 0x6837, 0x6A23, 0x6C11, 0x6C92, 0x6CA1, + 0x7136, 0x7279, 0x73B0, 0x73FE, 0x7403, 0x7B2C, 0x7D93, 0x8C01, + 0x8D77 /* right fill */ + }, + { + 0x4F8B, 0x5225, 0x522B, 0x5236, 0x52A8, 0x52D5, 0x5417, 0x55CE, + 0x589E, 0x6307, 0x660E, 0x671D, 0x671F, 0x6784, 0x7269, 0x786E, + 0x79CD, 0x8ABF, 0x8C03, 0x8CBB, 0x8D39, 0x90A3, 0x90FD, 0x9593, + 0x95F4 /* right unfill */ + } + } +#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */ + }; + + + /* Calculate blue zones for all the CJK_BLUE_XXX's. */ + + static void + af_cjk_metrics_init_blues( AF_CJKMetrics metrics, + FT_Face face, + const FT_ULong blue_chars + [AF_CJK_BLUE_MAX] + [AF_CJK_BLUE_TYPE_MAX] + [AF_CJK_MAX_TEST_CHARACTERS] ) + { + FT_Pos fills[AF_CJK_MAX_TEST_CHARACTERS]; + FT_Pos flats[AF_CJK_MAX_TEST_CHARACTERS]; + + FT_Int num_fills; + FT_Int num_flats; + + FT_Int bb; + AF_CJKBlue blue; + FT_Error error; + AF_CJKAxis axis; + FT_GlyphSlot glyph = face->glyph; + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_String* cjk_blue_name[AF_CJK_BLUE_MAX] = { + (FT_String*)"top", + (FT_String*)"bottom", + (FT_String*)"left", + (FT_String*)"right" + }; + FT_String* cjk_blue_type_name[AF_CJK_BLUE_TYPE_MAX] = { + (FT_String*)"filled", + (FT_String*)"unfilled" + }; +#endif + + + /* We compute the blues simply by loading each character from the */ + /* `blue_chars[blues]' string, then computing its extreme points */ + /* (depending blue zone type etc.). */ + + FT_TRACE5(( "cjk blue zones computation\n" )); + FT_TRACE5(( "------------------------------------------------\n" )); + + for ( bb = 0; bb < AF_CJK_BLUE_MAX; bb++ ) + { + FT_Int fill_type; + FT_Pos* blue_ref; + FT_Pos* blue_shoot; + + + num_fills = 0; + num_flats = 0; + + for ( fill_type = 0; fill_type < AF_CJK_BLUE_TYPE_MAX; fill_type++ ) + { + const FT_ULong* p = blue_chars[bb][fill_type]; + const FT_ULong* limit = p + AF_CJK_MAX_TEST_CHARACTERS; + FT_Bool fill = FT_BOOL( + fill_type == AF_CJK_BLUE_TYPE_FILL ); + + + FT_TRACE5(( "cjk blue %s/%s\n", cjk_blue_name[bb], + cjk_blue_type_name[fill_type] )); + + + for ( ; p < limit && *p; p++ ) + { + FT_UInt glyph_index; + FT_Pos best_pos; /* same as points.y */ + FT_Int best_point; + FT_Vector* points; + + + FT_TRACE5(( " U+%lX...", *p )); + + /* load the character in the face -- skip unknown or empty ones */ + glyph_index = FT_Get_Char_Index( face, *p ); + if ( glyph_index == 0 ) + { + FT_TRACE5(( "unavailable\n" )); + continue; + } + + error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); + if ( error || glyph->outline.n_points <= 0 ) + { + FT_TRACE5(( "no outline\n" )); + continue; + } + + /* now compute min or max point indices and coordinates */ + points = glyph->outline.points; + best_point = -1; + best_pos = 0; /* make compiler happy */ + + { + FT_Int nn; + FT_Int first = 0; + FT_Int last = -1; + + + for ( nn = 0; + nn < glyph->outline.n_contours; + first = last + 1, nn++ ) + { + FT_Int pp; + + + last = glyph->outline.contours[nn]; + + /* Avoid single-point contours since they are never */ + /* rasterized. In some fonts, they correspond to mark */ + /* attachment points which are way outside of the glyph's */ + /* real outline. */ + if ( last <= first ) + continue; + + switch ( bb ) + { + case AF_CJK_BLUE_TOP: + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].y > best_pos ) + { + best_point = pp; + best_pos = points[pp].y; + } + break; + + case AF_CJK_BLUE_BOTTOM: + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].y < best_pos ) + { + best_point = pp; + best_pos = points[pp].y; + } + break; + + case AF_CJK_BLUE_LEFT: + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].x < best_pos ) + { + best_point = pp; + best_pos = points[pp].x; + } + break; + + case AF_CJK_BLUE_RIGHT: + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].x > best_pos ) + { + best_point = pp; + best_pos = points[pp].x; + } + break; + + default: + ; + } + } + FT_TRACE5(( "best_pos=%5ld\n", best_pos )); + } + + if ( fill ) + fills[num_fills++] = best_pos; + else + flats[num_flats++] = best_pos; + } + } + + if ( num_flats == 0 && num_fills == 0 ) + { + /* + * we couldn't find a single glyph to compute this blue zone, + * we will simply ignore it then + */ + FT_TRACE5(( "empty\n" )); + continue; + } + + /* we have computed the contents of the `fill' and `flats' tables, */ + /* now determine the reference position of the blue -- */ + /* we simply take the median value after a simple sort */ + af_sort_pos( num_flats, flats ); + af_sort_pos( num_fills, fills ); + + if ( AF_CJK_BLUE_TOP == bb || AF_CJK_BLUE_BOTTOM == bb ) + axis = &metrics->axis[AF_DIMENSION_VERT]; + else + axis = &metrics->axis[AF_DIMENSION_HORZ]; + + blue = & axis->blues[axis->blue_count]; + blue_ref = & blue->ref.org; + blue_shoot = & blue->shoot.org; + + axis->blue_count++; + if ( num_flats == 0 ) + { + *blue_ref = fills[num_fills / 2]; + *blue_shoot = fills[num_fills / 2]; + } + else if ( num_fills == 0 ) + { + *blue_ref = flats[num_flats / 2]; + *blue_shoot = flats[num_flats / 2]; + } + else + { + *blue_ref = fills[num_fills / 2]; + *blue_shoot = flats[num_flats / 2]; + } + + /* make sure blue_ref >= blue_shoot for top/right or */ + /* vice versa for bottom/left */ + if ( *blue_shoot != *blue_ref ) + { + FT_Pos ref = *blue_ref; + FT_Pos shoot = *blue_shoot; + FT_Bool under_ref = FT_BOOL( shoot < ref ); + + + if ( (AF_CJK_BLUE_TOP == bb || AF_CJK_BLUE_RIGHT == bb) ^ under_ref ) + *blue_shoot = *blue_ref = ( shoot + ref ) / 2; + } + + blue->flags = 0; + if ( AF_CJK_BLUE_TOP == bb ) + blue->flags |= AF_CJK_BLUE_IS_TOP; + else if ( AF_CJK_BLUE_RIGHT == bb ) + blue->flags |= AF_CJK_BLUE_IS_RIGHT; + + FT_TRACE5(( "-- cjk %s bluezone ref = %ld shoot = %ld\n", + cjk_blue_name[bb], *blue_ref, *blue_shoot )); + } + + return; + } + + + /* Basically the Latin version with type AF_CJKMetrics for metrics. */ + FT_LOCAL_DEF( void ) + af_cjk_metrics_check_digits( AF_CJKMetrics metrics, + FT_Face face ) + { + FT_UInt i; + FT_Bool started = 0, same_width = 1; + FT_Fixed advance, old_advance = 0; + + + /* check whether all ASCII digits have the same advance width; */ + /* digit `0' is 0x30 in all supported charmaps */ + for ( i = 0x30; i <= 0x39; i++ ) + { + FT_UInt glyph_index; + + + glyph_index = FT_Get_Char_Index( face, i ); + if ( glyph_index == 0 ) + continue; + + if ( FT_Get_Advance( face, glyph_index, + FT_LOAD_NO_SCALE | + FT_LOAD_NO_HINTING | + FT_LOAD_IGNORE_TRANSFORM, + &advance ) ) + continue; + + if ( started ) + { + if ( advance != old_advance ) + { + same_width = 0; + break; + } + } + else + { + old_advance = advance; + started = 1; + } + } + + metrics->root.digits_have_same_width = same_width; + } + + + FT_LOCAL_DEF( FT_Error ) + af_cjk_metrics_init( AF_CJKMetrics metrics, + FT_Face face ) + { + FT_CharMap oldmap = face->charmap; + + + metrics->units_per_em = face->units_per_EM; + + if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) ) + face->charmap = NULL; + else + { + af_cjk_metrics_init_widths( metrics, face, 0x7530 ); + af_cjk_metrics_init_blues( metrics, face, af_cjk_hani_blue_chars ); + af_cjk_metrics_check_digits( metrics, face ); + } + + FT_Set_Charmap( face, oldmap ); + + return AF_Err_Ok; + } + + + static void + af_cjk_metrics_scale_dim( AF_CJKMetrics metrics, + AF_Scaler scaler, + AF_Dimension dim ) + { + FT_Fixed scale; + FT_Pos delta; + AF_CJKAxis axis; + FT_UInt nn; + + + axis = &metrics->axis[dim]; + + if ( dim == AF_DIMENSION_HORZ ) + { + scale = scaler->x_scale; + delta = scaler->x_delta; + } + else + { + scale = scaler->y_scale; + delta = scaler->y_delta; + } + + if ( axis->org_scale == scale && axis->org_delta == delta ) + return; + + axis->org_scale = scale; + axis->org_delta = delta; + + axis->scale = scale; + axis->delta = delta; + + /* scale the blue zones */ + for ( nn = 0; nn < axis->blue_count; nn++ ) + { + AF_CJKBlue blue = &axis->blues[nn]; + FT_Pos dist; + + + blue->ref.cur = FT_MulFix( blue->ref.org, scale ) + delta; + blue->ref.fit = blue->ref.cur; + blue->shoot.cur = FT_MulFix( blue->shoot.org, scale ) + delta; + blue->shoot.fit = blue->shoot.cur; + blue->flags &= ~AF_CJK_BLUE_ACTIVE; + + /* a blue zone is only active if it is less than 3/4 pixels tall */ + dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale ); + if ( dist <= 48 && dist >= -48 ) + { + FT_Pos delta1, delta2; + + + blue->ref.fit = FT_PIX_ROUND( blue->ref.cur ); + + /* shoot is under shoot for cjk */ + delta1 = FT_DivFix( blue->ref.fit, scale ) - blue->shoot.org; + delta2 = delta1; + if ( delta1 < 0 ) + delta2 = -delta2; + + delta2 = FT_MulFix( delta2, scale ); + + FT_TRACE5(( "delta: %d", delta1 )); + if ( delta2 < 32 ) + delta2 = 0; +#if 0 + else if ( delta2 < 64 ) + delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 ); +#endif + else + delta2 = FT_PIX_ROUND( delta2 ); + FT_TRACE5(( "/%d\n", delta2 )); + + if ( delta1 < 0 ) + delta2 = -delta2; + + blue->shoot.fit = blue->ref.fit - delta2; + + FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]: " + "ref: cur=%.2f fit=%.2f shoot: cur=%.2f fit=%.2f\n", + ( dim == AF_DIMENSION_HORZ ) ? 'H' : 'V', + nn, blue->ref.org, blue->shoot.org, + blue->ref.cur / 64.0, blue->ref.fit / 64.0, + blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 )); + + blue->flags |= AF_CJK_BLUE_ACTIVE; + } + } + } + + + FT_LOCAL_DEF( void ) + af_cjk_metrics_scale( AF_CJKMetrics metrics, + AF_Scaler scaler ) + { + metrics->root.scaler = *scaler; + + af_cjk_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ ); + af_cjk_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** C J K G L Y P H A N A L Y S I S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + af_cjk_hints_compute_segments( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + FT_Error error; + AF_Segment seg; + + + error = af_latin_hints_compute_segments( hints, dim ); + if ( error ) + return error; + + /* a segment is round if it doesn't have successive */ + /* on-curve points. */ + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Point pt = seg->first; + AF_Point last = seg->last; + AF_Flags f0 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL); + AF_Flags f1; + + + seg->flags &= ~AF_EDGE_ROUND; + + for ( ; pt != last; f0 = f1 ) + { + pt = pt->next; + f1 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL); + + if ( !f0 && !f1 ) + break; + + if ( pt == last ) + seg->flags |= AF_EDGE_ROUND; + } + } + + return AF_Err_Ok; + } + + + static void + af_cjk_hints_link_segments( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + AF_Direction major_dir = axis->major_dir; + AF_Segment seg1, seg2; + FT_Pos len_threshold; + FT_Pos dist_threshold; + + + len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 ); + + dist_threshold = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale + : hints->y_scale; + dist_threshold = FT_DivFix( 64 * 3, dist_threshold ); + + /* now compare each segment to the others */ + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + /* the fake segments are for metrics hinting only */ + if ( seg1->first == seg1->last ) + continue; + + if ( seg1->dir != major_dir ) + continue; + + for ( seg2 = segments; seg2 < segment_limit; seg2++ ) + if ( seg2 != seg1 && seg1->dir + seg2->dir == 0 ) + { + FT_Pos dist = seg2->pos - seg1->pos; + + + if ( dist < 0 ) + continue; + + { + FT_Pos min = seg1->min_coord; + FT_Pos max = seg1->max_coord; + FT_Pos len; + + + if ( min < seg2->min_coord ) + min = seg2->min_coord; + + if ( max > seg2->max_coord ) + max = seg2->max_coord; + + len = max - min; + if ( len >= len_threshold ) + { + if ( dist * 8 < seg1->score * 9 && + ( dist * 8 < seg1->score * 7 || seg1->len < len ) ) + { + seg1->score = dist; + seg1->len = len; + seg1->link = seg2; + } + + if ( dist * 8 < seg2->score * 9 && + ( dist * 8 < seg2->score * 7 || seg2->len < len ) ) + { + seg2->score = dist; + seg2->len = len; + seg2->link = seg1; + } + } + } + } + } + + /* + * now compute the `serif' segments + * + * In Hanzi, some strokes are wider on one or both of the ends. + * We either identify the stems on the ends as serifs or remove + * the linkage, depending on the length of the stems. + * + */ + + { + AF_Segment link1, link2; + + + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + link1 = seg1->link; + if ( !link1 || link1->link != seg1 || link1->pos <= seg1->pos ) + continue; + + if ( seg1->score >= dist_threshold ) + continue; + + for ( seg2 = segments; seg2 < segment_limit; seg2++ ) + { + if ( seg2->pos > seg1->pos || seg1 == seg2 ) + continue; + + link2 = seg2->link; + if ( !link2 || link2->link != seg2 || link2->pos < link1->pos ) + continue; + + if ( seg1->pos == seg2->pos && link1->pos == link2->pos ) + continue; + + if ( seg2->score <= seg1->score || seg1->score * 4 <= seg2->score ) + continue; + + /* seg2 < seg1 < link1 < link2 */ + + if ( seg1->len >= seg2->len * 3 ) + { + AF_Segment seg; + + + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Segment link = seg->link; + + + if ( link == seg2 ) + { + seg->link = 0; + seg->serif = link1; + } + else if ( link == link2 ) + { + seg->link = 0; + seg->serif = seg1; + } + } + } + else + { + seg1->link = link1->link = 0; + + break; + } + } + } + } + + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + seg2 = seg1->link; + + if ( seg2 ) + { + seg2->num_linked++; + if ( seg2->link != seg1 ) + { + seg1->link = 0; + + if ( seg2->score < dist_threshold || seg1->score < seg2->score * 4 ) + seg1->serif = seg2->link; + else + seg2->num_linked--; + } + } + } + } + + + static FT_Error + af_cjk_hints_compute_edges( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + FT_Error error = AF_Err_Ok; + FT_Memory memory = hints->memory; + AF_CJKAxis laxis = &((AF_CJKMetrics)hints->metrics)->axis[dim]; + + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + AF_Segment seg; + + FT_Fixed scale; + FT_Pos edge_distance_threshold; + + + axis->num_edges = 0; + + scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale + : hints->y_scale; + + /*********************************************************************/ + /* */ + /* We begin by generating a sorted table of edges for the current */ + /* direction. To do so, we simply scan each segment and try to find */ + /* an edge in our table that corresponds to its position. */ + /* */ + /* If no edge is found, we create and insert a new edge in the */ + /* sorted table. Otherwise, we simply add the segment to the edge's */ + /* list which is then processed in the second step to compute the */ + /* edge's properties. */ + /* */ + /* Note that the edges table is sorted along the segment/edge */ + /* position. */ + /* */ + /*********************************************************************/ + + edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold, + scale ); + if ( edge_distance_threshold > 64 / 4 ) + edge_distance_threshold = FT_DivFix( 64 / 4, scale ); + else + edge_distance_threshold = laxis->edge_distance_threshold; + + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Edge found = 0; + FT_Pos best = 0xFFFFU; + FT_Int ee; + + + /* look for an edge corresponding to the segment */ + for ( ee = 0; ee < axis->num_edges; ee++ ) + { + AF_Edge edge = axis->edges + ee; + FT_Pos dist; + + + if ( edge->dir != seg->dir ) + continue; + + dist = seg->pos - edge->fpos; + if ( dist < 0 ) + dist = -dist; + + if ( dist < edge_distance_threshold && dist < best ) + { + AF_Segment link = seg->link; + + + /* check whether all linked segments of the candidate edge */ + /* can make a single edge. */ + if ( link ) + { + AF_Segment seg1 = edge->first; + AF_Segment link1; + FT_Pos dist2 = 0; + + + do + { + link1 = seg1->link; + if ( link1 ) + { + dist2 = AF_SEGMENT_DIST( link, link1 ); + if ( dist2 >= edge_distance_threshold ) + break; + } + + } while ( ( seg1 = seg1->edge_next ) != edge->first ); + + if ( dist2 >= edge_distance_threshold ) + continue; + } + + best = dist; + found = edge; + } + } + + if ( !found ) + { + AF_Edge edge; + + + /* insert a new edge in the list and */ + /* sort according to the position */ + error = af_axis_hints_new_edge( axis, seg->pos, + (AF_Direction)seg->dir, + memory, &edge ); + if ( error ) + goto Exit; + + /* add the segment to the new edge's list */ + FT_ZERO( edge ); + + edge->first = seg; + edge->last = seg; + edge->fpos = seg->pos; + edge->opos = edge->pos = FT_MulFix( seg->pos, scale ); + seg->edge_next = seg; + edge->dir = seg->dir; + } + else + { + /* if an edge was found, simply add the segment to the edge's */ + /* list */ + seg->edge_next = found->first; + found->last->edge_next = seg; + found->last = seg; + } + } + + /*********************************************************************/ + /* */ + /* Good, we now compute each edge's properties according to segments */ + /* found on its position. Basically, these are as follows. */ + /* */ + /* - edge's main direction */ + /* - stem edge, serif edge or both (which defaults to stem then) */ + /* - rounded edge, straight or both (which defaults to straight) */ + /* - link for edge */ + /* */ + /*********************************************************************/ + + /* first of all, set the `edge' field in each segment -- this is */ + /* required in order to compute edge links */ + /* */ + /* Note that removing this loop and setting the `edge' field of each */ + /* segment directly in the code above slows down execution speed for */ + /* some reasons on platforms like the Sun. */ + + { + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + AF_Edge edge; + + + for ( edge = edges; edge < edge_limit; edge++ ) + { + seg = edge->first; + if ( seg ) + do + { + seg->edge = edge; + seg = seg->edge_next; + + } while ( seg != edge->first ); + } + + /* now compute each edge properties */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + FT_Int is_round = 0; /* does it contain round segments? */ + FT_Int is_straight = 0; /* does it contain straight segments? */ + + + seg = edge->first; + + do + { + FT_Bool is_serif; + + + /* check for roundness of segment */ + if ( seg->flags & AF_EDGE_ROUND ) + is_round++; + else + is_straight++; + + /* check for links -- if seg->serif is set, then seg->link must */ + /* be ignored */ + is_serif = (FT_Bool)( seg->serif && seg->serif->edge != edge ); + + if ( seg->link || is_serif ) + { + AF_Edge edge2; + AF_Segment seg2; + + + edge2 = edge->link; + seg2 = seg->link; + + if ( is_serif ) + { + seg2 = seg->serif; + edge2 = edge->serif; + } + + if ( edge2 ) + { + FT_Pos edge_delta; + FT_Pos seg_delta; + + + edge_delta = edge->fpos - edge2->fpos; + if ( edge_delta < 0 ) + edge_delta = -edge_delta; + + seg_delta = AF_SEGMENT_DIST( seg, seg2 ); + + if ( seg_delta < edge_delta ) + edge2 = seg2->edge; + } + else + edge2 = seg2->edge; + + if ( is_serif ) + { + edge->serif = edge2; + edge2->flags |= AF_EDGE_SERIF; + } + else + edge->link = edge2; + } + + seg = seg->edge_next; + + } while ( seg != edge->first ); + + /* set the round/straight flags */ + edge->flags = AF_EDGE_NORMAL; + + if ( is_round > 0 && is_round >= is_straight ) + edge->flags |= AF_EDGE_ROUND; + + /* get rid of serifs if link is set */ + /* XXX: This gets rid of many unpleasant artefacts! */ + /* Example: the `c' in cour.pfa at size 13 */ + + if ( edge->serif && edge->link ) + edge->serif = 0; + } + } + + Exit: + return error; + } + + + static FT_Error + af_cjk_hints_detect_features( AF_GlyphHints hints, + AF_Dimension dim ) + { + FT_Error error; + + + error = af_cjk_hints_compute_segments( hints, dim ); + if ( !error ) + { + af_cjk_hints_link_segments( hints, dim ); + + error = af_cjk_hints_compute_edges( hints, dim ); + } + return error; + } + + + FT_LOCAL_DEF( void ) + af_cjk_hints_compute_blue_edges( AF_GlyphHints hints, + AF_CJKMetrics metrics, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Edge edge = axis->edges; + AF_Edge edge_limit = edge + axis->num_edges; + AF_CJKAxis cjk = &metrics->axis[dim]; + FT_Fixed scale = cjk->scale; + FT_Pos best_dist0; /* initial threshold */ + + + /* compute the initial threshold as a fraction of the EM size */ + best_dist0 = FT_MulFix( metrics->units_per_em / 40, scale ); + + if ( best_dist0 > 64 / 2 ) /* maximum 1/2 pixel */ + best_dist0 = 64 / 2; + + /* compute which blue zones are active, i.e. have their scaled */ + /* size < 3/4 pixels */ + + /* If the distant between an edge and a blue zone is shorter than */ + /* best_dist0, set the blue zone for the edge. Then search for */ + /* the blue zone with the smallest best_dist to the edge. */ + + for ( ; edge < edge_limit; edge++ ) + { + FT_UInt bb; + AF_Width best_blue = NULL; + FT_Pos best_dist = best_dist0; + + + for ( bb = 0; bb < cjk->blue_count; bb++ ) + { + AF_CJKBlue blue = cjk->blues + bb; + FT_Bool is_top_right_blue, is_major_dir; + + + /* skip inactive blue zones (i.e., those that are too small) */ + if ( !( blue->flags & AF_CJK_BLUE_ACTIVE ) ) + continue; + + /* if it is a top zone, check for right edges -- if it is a bottom */ + /* zone, check for left edges */ + /* */ + /* of course, that's for TrueType */ + is_top_right_blue = + FT_BOOL( ( ( blue->flags & AF_CJK_BLUE_IS_TOP ) != 0 ) || + ( ( blue->flags & AF_CJK_BLUE_IS_RIGHT ) != 0 ) ); + is_major_dir = FT_BOOL( edge->dir == axis->major_dir ); + + /* if it is a top zone, the edge must be against the major */ + /* direction; if it is a bottom zone, it must be in the major */ + /* direction */ + if ( is_top_right_blue ^ is_major_dir ) + { + FT_Pos dist; + AF_Width compare; + + + /* Compare the edge to the closest blue zone type */ + if ( FT_ABS( edge->fpos - blue->ref.org ) > + FT_ABS( edge->fpos - blue->shoot.org ) ) + compare = &blue->shoot; + else + compare = &blue->ref; + + dist = edge->fpos - compare->org; + if ( dist < 0 ) + dist = -dist; + + dist = FT_MulFix( dist, scale ); + if ( dist < best_dist ) + { + best_dist = dist; + best_blue = compare; + } + } + } + + if ( best_blue ) + edge->blue_edge = best_blue; + } + } + + + FT_LOCAL_DEF( FT_Error ) + af_cjk_hints_init( AF_GlyphHints hints, + AF_CJKMetrics metrics ) + { + FT_Render_Mode mode; + FT_UInt32 scaler_flags, other_flags; + + + af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics ); + + /* + * correct x_scale and y_scale when needed, since they may have + * been modified af_cjk_scale_dim above + */ + hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale; + hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta; + hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale; + hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta; + + /* compute flags depending on render mode, etc. */ + mode = metrics->root.scaler.render_mode; + +#ifdef AF_CONFIG_OPTION_USE_WARPER + if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V ) + metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL; +#endif + + scaler_flags = hints->scaler_flags; + other_flags = 0; + + /* + * We snap the width of vertical stems for the monochrome and + * horizontal LCD rendering targets only. + */ + if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD ) + other_flags |= AF_LATIN_HINTS_HORZ_SNAP; + + /* + * We snap the width of horizontal stems for the monochrome and + * vertical LCD rendering targets only. + */ + if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V ) + other_flags |= AF_LATIN_HINTS_VERT_SNAP; + + /* + * We adjust stems to full pixels only if we don't use the `light' mode. + */ + if ( mode != FT_RENDER_MODE_LIGHT ) + other_flags |= AF_LATIN_HINTS_STEM_ADJUST; + + if ( mode == FT_RENDER_MODE_MONO ) + other_flags |= AF_LATIN_HINTS_MONO; + + scaler_flags |= AF_SCALER_FLAG_NO_ADVANCE; + + hints->scaler_flags = scaler_flags; + hints->other_flags = other_flags; + + return 0; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** C J K G L Y P H G R I D - F I T T I N G *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* snap a given width in scaled coordinates to one of the */ + /* current standard widths */ + + static FT_Pos + af_cjk_snap_width( AF_Width widths, + FT_Int count, + FT_Pos width ) + { + int n; + FT_Pos best = 64 + 32 + 2; + FT_Pos reference = width; + FT_Pos scaled; + + + for ( n = 0; n < count; n++ ) + { + FT_Pos w; + FT_Pos dist; + + + w = widths[n].cur; + dist = width - w; + if ( dist < 0 ) + dist = -dist; + if ( dist < best ) + { + best = dist; + reference = w; + } + } + + scaled = FT_PIX_ROUND( reference ); + + if ( width >= reference ) + { + if ( width < scaled + 48 ) + width = reference; + } + else + { + if ( width > scaled - 48 ) + width = reference; + } + + return width; + } + + + /* compute the snapped width of a given stem */ + + static FT_Pos + af_cjk_compute_stem_width( AF_GlyphHints hints, + AF_Dimension dim, + FT_Pos width, + AF_Edge_Flags base_flags, + AF_Edge_Flags stem_flags ) + { + AF_CJKMetrics metrics = (AF_CJKMetrics) hints->metrics; + AF_CJKAxis axis = & metrics->axis[dim]; + FT_Pos dist = width; + FT_Int sign = 0; + FT_Bool vertical = FT_BOOL( dim == AF_DIMENSION_VERT ); + + FT_UNUSED( base_flags ); + FT_UNUSED( stem_flags ); + + + if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ) + return width; + + if ( dist < 0 ) + { + dist = -width; + sign = 1; + } + + if ( ( vertical && !AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) || + ( !vertical && !AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) ) + { + /* smooth hinting process: very lightly quantize the stem width */ + + if ( axis->width_count > 0 ) + { + if ( FT_ABS( dist - axis->widths[0].cur ) < 40 ) + { + dist = axis->widths[0].cur; + if ( dist < 48 ) + dist = 48; + + goto Done_Width; + } + } + + if ( dist < 54 ) + dist += ( 54 - dist ) / 2 ; + else if ( dist < 3 * 64 ) + { + FT_Pos delta; + + + delta = dist & 63; + dist &= -64; + + if ( delta < 10 ) + dist += delta; + else if ( delta < 22 ) + dist += 10; + else if ( delta < 42 ) + dist += delta; + else if ( delta < 54 ) + dist += 54; + else + dist += delta; + } + } + else + { + /* strong hinting process: snap the stem width to integer pixels */ + + dist = af_cjk_snap_width( axis->widths, axis->width_count, dist ); + + if ( vertical ) + { + /* in the case of vertical hinting, always round */ + /* the stem heights to integer pixels */ + + if ( dist >= 64 ) + dist = ( dist + 16 ) & ~63; + else + dist = 64; + } + else + { + if ( AF_LATIN_HINTS_DO_MONO( hints ) ) + { + /* monochrome horizontal hinting: snap widths to integer pixels */ + /* with a different threshold */ + + if ( dist < 64 ) + dist = 64; + else + dist = ( dist + 32 ) & ~63; + } + else + { + /* for horizontal anti-aliased hinting, we adopt a more subtle */ + /* approach: we strengthen small stems, round stems whose size */ + /* is between 1 and 2 pixels to an integer, otherwise nothing */ + + if ( dist < 48 ) + dist = ( dist + 64 ) >> 1; + + else if ( dist < 128 ) + dist = ( dist + 22 ) & ~63; + else + /* round otherwise to prevent color fringes in LCD mode */ + dist = ( dist + 32 ) & ~63; + } + } + } + + Done_Width: + if ( sign ) + dist = -dist; + + return dist; + } + + + /* align one stem edge relative to the previous stem edge */ + + static void + af_cjk_align_linked_edge( AF_GlyphHints hints, + AF_Dimension dim, + AF_Edge base_edge, + AF_Edge stem_edge ) + { + FT_Pos dist = stem_edge->opos - base_edge->opos; + + FT_Pos fitted_width = af_cjk_compute_stem_width( + hints, dim, dist, + (AF_Edge_Flags)base_edge->flags, + (AF_Edge_Flags)stem_edge->flags ); + + + stem_edge->pos = base_edge->pos + fitted_width; + } + + + static void + af_cjk_align_serif_edge( AF_GlyphHints hints, + AF_Edge base, + AF_Edge serif ) + { + FT_UNUSED( hints ); + + serif->pos = base->pos + ( serif->opos - base->opos ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** E D G E H I N T I N G ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#define AF_LIGHT_MODE_MAX_HORZ_GAP 9 +#define AF_LIGHT_MODE_MAX_VERT_GAP 15 +#define AF_LIGHT_MODE_MAX_DELTA_ABS 14 + + + static FT_Pos + af_hint_normal_stem( AF_GlyphHints hints, + AF_Edge edge, + AF_Edge edge2, + FT_Pos anchor, + AF_Dimension dim ) + { + FT_Pos org_len, cur_len, org_center; + FT_Pos cur_pos1, cur_pos2; + FT_Pos d_off1, u_off1, d_off2, u_off2, delta; + FT_Pos offset; + FT_Pos threshold = 64; + + + if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ) + { + if ( ( edge->flags & AF_EDGE_ROUND ) && + ( edge2->flags & AF_EDGE_ROUND ) ) + { + if ( dim == AF_DIMENSION_VERT ) + threshold = 64 - AF_LIGHT_MODE_MAX_HORZ_GAP; + else + threshold = 64 - AF_LIGHT_MODE_MAX_VERT_GAP; + } + else + { + if ( dim == AF_DIMENSION_VERT ) + threshold = 64 - AF_LIGHT_MODE_MAX_HORZ_GAP / 3; + else + threshold = 64 - AF_LIGHT_MODE_MAX_VERT_GAP / 3; + } + } + + org_len = edge2->opos - edge->opos; + cur_len = af_cjk_compute_stem_width( hints, dim, org_len, + (AF_Edge_Flags)edge->flags, + (AF_Edge_Flags)edge2->flags ); + + org_center = ( edge->opos + edge2->opos ) / 2 + anchor; + cur_pos1 = org_center - cur_len / 2; + cur_pos2 = cur_pos1 + cur_len; + d_off1 = cur_pos1 - FT_PIX_FLOOR( cur_pos1 ); + d_off2 = cur_pos2 - FT_PIX_FLOOR( cur_pos2 ); + u_off1 = 64 - d_off1; + u_off2 = 64 - d_off2; + delta = 0; + + + if ( d_off1 == 0 || d_off2 == 0 ) + goto Exit; + + if ( cur_len <= threshold ) + { + if ( d_off2 < cur_len ) + { + if ( u_off1 <= d_off2 ) + delta = u_off1; + else + delta = -d_off2; + } + + goto Exit; + } + + if ( threshold < 64 ) + { + if ( d_off1 >= threshold || u_off1 >= threshold || + d_off2 >= threshold || u_off2 >= threshold ) + goto Exit; + } + + offset = cur_len & 63; + + if ( offset < 32 ) + { + if ( u_off1 <= offset || d_off2 <= offset ) + goto Exit; + } + else + offset = 64 - threshold; + + d_off1 = threshold - u_off1; + u_off1 = u_off1 - offset; + u_off2 = threshold - d_off2; + d_off2 = d_off2 - offset; + + if ( d_off1 <= u_off1 ) + u_off1 = -d_off1; + + if ( d_off2 <= u_off2 ) + u_off2 = -d_off2; + + if ( FT_ABS( u_off1 ) <= FT_ABS( u_off2 ) ) + delta = u_off1; + else + delta = u_off2; + + Exit: + +#if 1 + if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ) + { + if ( delta > AF_LIGHT_MODE_MAX_DELTA_ABS ) + delta = AF_LIGHT_MODE_MAX_DELTA_ABS; + else if ( delta < -AF_LIGHT_MODE_MAX_DELTA_ABS ) + delta = -AF_LIGHT_MODE_MAX_DELTA_ABS; + } +#endif + + cur_pos1 += delta; + + if ( edge->opos < edge2->opos ) + { + edge->pos = cur_pos1; + edge2->pos = cur_pos1 + cur_len; + } + else + { + edge->pos = cur_pos1 + cur_len; + edge2->pos = cur_pos1; + } + + return delta; + } + + + static void + af_cjk_hint_edges( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + FT_PtrDist n_edges; + AF_Edge edge; + AF_Edge anchor = 0; + FT_Pos delta = 0; + FT_Int skipped = 0; + FT_Bool has_last_stem = FALSE; + FT_Pos last_stem_pos = 0; + + + /* we begin by aligning all stems relative to the blue zone */ + FT_TRACE5(( "==== cjk hinting %s edges =====\n", + dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" )); + + if ( AF_HINTS_DO_BLUES( hints ) ) + { + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Width blue; + AF_Edge edge1, edge2; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + blue = edge->blue_edge; + edge1 = NULL; + edge2 = edge->link; + + if ( blue ) + { + edge1 = edge; + } + else if ( edge2 && edge2->blue_edge ) + { + blue = edge2->blue_edge; + edge1 = edge2; + edge2 = edge; + } + + if ( !edge1 ) + continue; + + FT_TRACE5(( "CJKBLUE: edge %d @%d (opos=%.2f) snapped to (%.2f), " + "was (%.2f)\n", + edge1-edges, edge1->fpos, edge1->opos / 64.0, blue->fit / 64.0, + edge1->pos / 64.0 )); + + edge1->pos = blue->fit; + edge1->flags |= AF_EDGE_DONE; + + if ( edge2 && !edge2->blue_edge ) + { + af_cjk_align_linked_edge( hints, dim, edge1, edge2 ); + edge2->flags |= AF_EDGE_DONE; + } + + if ( !anchor ) + anchor = edge; + } + } + + /* now we align all stem edges. */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Edge edge2; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + /* skip all non-stem edges */ + edge2 = edge->link; + if ( !edge2 ) + { + skipped++; + continue; + } + + /* Some CJK characters have so many stems that + * the hinter is likely to merge two adjacent ones. + * To solve this problem, if either edge of a stem + * is too close to the previous one, we avoid + * aligning the two edges, but rather interpolate + * their locations at the end of this function in + * order to preserve the space between the stems. + */ + if ( has_last_stem && + ( edge->pos < last_stem_pos + 64 || + edge2->pos < last_stem_pos + 64 ) ) + { + skipped++; + continue; + } + + /* now align the stem */ + /* this should not happen, but it's better to be safe */ + if ( edge2->blue_edge ) + { + FT_TRACE5(( "ASSERTION FAILED for edge %d\n", edge2-edges )); + + af_cjk_align_linked_edge( hints, dim, edge2, edge ); + edge->flags |= AF_EDGE_DONE; + continue; + } + + if ( edge2 < edge ) + { + af_cjk_align_linked_edge( hints, dim, edge2, edge ); + edge->flags |= AF_EDGE_DONE; + /* We rarely reaches here it seems; + * usually the two edges belonging + * to one stem are marked as DONE together + */ + has_last_stem = TRUE; + last_stem_pos = edge->pos; + continue; + } + + if ( dim != AF_DIMENSION_VERT && !anchor ) + { + +#if 0 + if ( fixedpitch ) + { + AF_Edge left = edge; + AF_Edge right = edge_limit - 1; + AF_EdgeRec left1, left2, right1, right2; + FT_Pos target, center1, center2; + FT_Pos delta1, delta2, d1, d2; + + + while ( right > left && !right->link ) + right--; + + left1 = *left; + left2 = *left->link; + right1 = *right->link; + right2 = *right; + + delta = ( ( ( hinter->pp2.x + 32 ) & -64 ) - hinter->pp2.x ) / 2; + target = left->opos + ( right->opos - left->opos ) / 2 + delta - 16; + + delta1 = delta; + delta1 += af_hint_normal_stem( hints, left, left->link, + delta1, 0 ); + + if ( left->link != right ) + af_hint_normal_stem( hints, right->link, right, delta1, 0 ); + + center1 = left->pos + ( right->pos - left->pos ) / 2; + + if ( center1 >= target ) + delta2 = delta - 32; + else + delta2 = delta + 32; + + delta2 += af_hint_normal_stem( hints, &left1, &left2, delta2, 0 ); + + if ( delta1 != delta2 ) + { + if ( left->link != right ) + af_hint_normal_stem( hints, &right1, &right2, delta2, 0 ); + + center2 = left1.pos + ( right2.pos - left1.pos ) / 2; + + d1 = center1 - target; + d2 = center2 - target; + + if ( FT_ABS( d2 ) < FT_ABS( d1 ) ) + { + left->pos = left1.pos; + left->link->pos = left2.pos; + + if ( left->link != right ) + { + right->link->pos = right1.pos; + right->pos = right2.pos; + } + + delta1 = delta2; + } + } + + delta = delta1; + right->link->flags |= AF_EDGE_DONE; + right->flags |= AF_EDGE_DONE; + } + else + +#endif /* 0 */ + + delta = af_hint_normal_stem( hints, edge, edge2, 0, + AF_DIMENSION_HORZ ); + } + else + af_hint_normal_stem( hints, edge, edge2, delta, dim ); + +#if 0 + printf( "stem (%d,%d) adjusted (%.1f,%.1f)\n", + edge - edges, edge2 - edges, + ( edge->pos - edge->opos ) / 64.0, + ( edge2->pos - edge2->opos ) / 64.0 ); +#endif + + anchor = edge; + edge->flags |= AF_EDGE_DONE; + edge2->flags |= AF_EDGE_DONE; + has_last_stem = TRUE; + last_stem_pos = edge2->pos; + } + + /* make sure that lowercase m's maintain their symmetry */ + + /* In general, lowercase m's have six vertical edges if they are sans */ + /* serif, or twelve if they are with serifs. This implementation is */ + /* based on that assumption, and seems to work very well with most */ + /* faces. However, if for a certain face this assumption is not */ + /* true, the m is just rendered like before. In addition, any stem */ + /* correction will only be applied to symmetrical glyphs (even if the */ + /* glyph is not an m), so the potential for unwanted distortion is */ + /* relatively low. */ + + /* We don't handle horizontal edges since we can't easily assure that */ + /* the third (lowest) stem aligns with the base line; it might end up */ + /* one pixel higher or lower. */ + + n_edges = edge_limit - edges; + if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) ) + { + AF_Edge edge1, edge2, edge3; + FT_Pos dist1, dist2, span; + + + if ( n_edges == 6 ) + { + edge1 = edges; + edge2 = edges + 2; + edge3 = edges + 4; + } + else + { + edge1 = edges + 1; + edge2 = edges + 5; + edge3 = edges + 9; + } + + dist1 = edge2->opos - edge1->opos; + dist2 = edge3->opos - edge2->opos; + + span = dist1 - dist2; + if ( span < 0 ) + span = -span; + + if ( edge1->link == edge1 + 1 && + edge2->link == edge2 + 1 && + edge3->link == edge3 + 1 && span < 8 ) + { + delta = edge3->pos - ( 2 * edge2->pos - edge1->pos ); + edge3->pos -= delta; + if ( edge3->link ) + edge3->link->pos -= delta; + + /* move the serifs along with the stem */ + if ( n_edges == 12 ) + { + ( edges + 8 )->pos -= delta; + ( edges + 11 )->pos -= delta; + } + + edge3->flags |= AF_EDGE_DONE; + if ( edge3->link ) + edge3->link->flags |= AF_EDGE_DONE; + } + } + + if ( !skipped ) + return; + + /* + * now hint the remaining edges (serifs and single) in order + * to complete our processing + */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + if ( edge->flags & AF_EDGE_DONE ) + continue; + + if ( edge->serif ) + { + af_cjk_align_serif_edge( hints, edge->serif, edge ); + edge->flags |= AF_EDGE_DONE; + skipped--; + } + } + + if ( !skipped ) + return; + + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Edge before, after; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + before = after = edge; + + while ( --before >= edges ) + if ( before->flags & AF_EDGE_DONE ) + break; + + while ( ++after < edge_limit ) + if ( after->flags & AF_EDGE_DONE ) + break; + + if ( before >= edges || after < edge_limit ) + { + if ( before < edges ) + af_cjk_align_serif_edge( hints, after, edge ); + else if ( after >= edge_limit ) + af_cjk_align_serif_edge( hints, before, edge ); + else + { + if ( after->fpos == before->fpos ) + edge->pos = before->pos; + else + edge->pos = before->pos + + FT_MulDiv( edge->fpos - before->fpos, + after->pos - before->pos, + after->fpos - before->fpos ); + } + } + } + } + + + static void + af_cjk_align_edge_points( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = & hints->axis[dim]; + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + AF_Edge edge; + FT_Bool snapping; + + + snapping = FT_BOOL( ( dim == AF_DIMENSION_HORZ && + AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) || + ( dim == AF_DIMENSION_VERT && + AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) ); + + for ( edge = edges; edge < edge_limit; edge++ ) + { + /* move the points of each segment */ + /* in each edge to the edge's position */ + AF_Segment seg = edge->first; + + + if ( snapping ) + { + do + { + AF_Point point = seg->first; + + + for (;;) + { + if ( dim == AF_DIMENSION_HORZ ) + { + point->x = edge->pos; + point->flags |= AF_FLAG_TOUCH_X; + } + else + { + point->y = edge->pos; + point->flags |= AF_FLAG_TOUCH_Y; + } + + if ( point == seg->last ) + break; + + point = point->next; + } + + seg = seg->edge_next; + + } while ( seg != edge->first ); + } + else + { + FT_Pos delta = edge->pos - edge->opos; + + + do + { + AF_Point point = seg->first; + + + for (;;) + { + if ( dim == AF_DIMENSION_HORZ ) + { + point->x += delta; + point->flags |= AF_FLAG_TOUCH_X; + } + else + { + point->y += delta; + point->flags |= AF_FLAG_TOUCH_Y; + } + + if ( point == seg->last ) + break; + + point = point->next; + } + + seg = seg->edge_next; + + } while ( seg != edge->first ); + } + } + } + + + FT_LOCAL_DEF( FT_Error ) + af_cjk_hints_apply( AF_GlyphHints hints, + FT_Outline* outline, + AF_CJKMetrics metrics ) + { + FT_Error error; + int dim; + + FT_UNUSED( metrics ); + + + error = af_glyph_hints_reload( hints, outline ); + if ( error ) + goto Exit; + + /* analyze glyph outline */ + if ( AF_HINTS_DO_HORIZONTAL( hints ) ) + { + error = af_cjk_hints_detect_features( hints, AF_DIMENSION_HORZ ); + if ( error ) + goto Exit; + + af_cjk_hints_compute_blue_edges( hints, metrics, AF_DIMENSION_HORZ ); + } + + if ( AF_HINTS_DO_VERTICAL( hints ) ) + { + error = af_cjk_hints_detect_features( hints, AF_DIMENSION_VERT ); + if ( error ) + goto Exit; + + af_cjk_hints_compute_blue_edges( hints, metrics, AF_DIMENSION_VERT ); + } + + /* grid-fit the outline */ + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) || + ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) ) + { + +#ifdef AF_CONFIG_OPTION_USE_WARPER + if ( dim == AF_DIMENSION_HORZ && + metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL ) + { + AF_WarperRec warper; + FT_Fixed scale; + FT_Pos delta; + + + af_warper_compute( &warper, hints, (AF_Dimension)dim, + &scale, &delta ); + af_glyph_hints_scale_dim( hints, (AF_Dimension)dim, + scale, delta ); + continue; + } +#endif /* AF_CONFIG_OPTION_USE_WARPER */ + + af_cjk_hint_edges( hints, (AF_Dimension)dim ); + af_cjk_align_edge_points( hints, (AF_Dimension)dim ); + af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim ); + af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim ); + } + } + +#if 0 + af_glyph_hints_dump_points( hints ); + af_glyph_hints_dump_segments( hints ); + af_glyph_hints_dump_edges( hints ); +#endif + + af_glyph_hints_save( hints, outline ); + + Exit: + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** C J K S C R I P T C L A S S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* this corresponds to Unicode 6.0 */ + + static const AF_Script_UniRangeRec af_cjk_uniranges[] = + { + AF_UNIRANGE_REC( 0x2E80UL, 0x2EFFUL ), /* CJK Radicals Supplement */ + AF_UNIRANGE_REC( 0x2F00UL, 0x2FDFUL ), /* Kangxi Radicals */ + AF_UNIRANGE_REC( 0x2FF0UL, 0x2FFFUL ), /* Ideographic Description Characters */ + AF_UNIRANGE_REC( 0x3000UL, 0x303FUL ), /* CJK Symbols and Punctuation */ + AF_UNIRANGE_REC( 0x3040UL, 0x309FUL ), /* Hiragana */ + AF_UNIRANGE_REC( 0x30A0UL, 0x30FFUL ), /* Katakana */ + AF_UNIRANGE_REC( 0x3100UL, 0x312FUL ), /* Bopomofo */ + AF_UNIRANGE_REC( 0x3130UL, 0x318FUL ), /* Hangul Compatibility Jamo */ + AF_UNIRANGE_REC( 0x3190UL, 0x319FUL ), /* Kanbun */ + AF_UNIRANGE_REC( 0x31A0UL, 0x31BFUL ), /* Bopomofo Extended */ + AF_UNIRANGE_REC( 0x31C0UL, 0x31EFUL ), /* CJK Strokes */ + AF_UNIRANGE_REC( 0x31F0UL, 0x31FFUL ), /* Katakana Phonetic Extensions */ + AF_UNIRANGE_REC( 0x3200UL, 0x32FFUL ), /* Enclosed CJK Letters and Months */ + AF_UNIRANGE_REC( 0x3300UL, 0x33FFUL ), /* CJK Compatibility */ + AF_UNIRANGE_REC( 0x3400UL, 0x4DBFUL ), /* CJK Unified Ideographs Extension A */ + AF_UNIRANGE_REC( 0x4DC0UL, 0x4DFFUL ), /* Yijing Hexagram Symbols */ + AF_UNIRANGE_REC( 0x4E00UL, 0x9FFFUL ), /* CJK Unified Ideographs */ + AF_UNIRANGE_REC( 0xA960UL, 0xA97FUL ), /* Hangul Jamo Extended-A */ + AF_UNIRANGE_REC( 0xAC00UL, 0xD7AFUL ), /* Hangul Syllables */ + AF_UNIRANGE_REC( 0xD7B0UL, 0xD7FFUL ), /* Hangul Jamo Extended-B */ + AF_UNIRANGE_REC( 0xF900UL, 0xFAFFUL ), /* CJK Compatibility Ideographs */ + AF_UNIRANGE_REC( 0xFE10UL, 0xFE1FUL ), /* Vertical forms */ + AF_UNIRANGE_REC( 0xFE30UL, 0xFE4FUL ), /* CJK Compatibility Forms */ + AF_UNIRANGE_REC( 0xFF00UL, 0xFFEFUL ), /* Halfwidth and Fullwidth Forms */ + AF_UNIRANGE_REC( 0x1B000UL, 0x1B0FFUL ), /* Kana Supplement */ + AF_UNIRANGE_REC( 0x1D300UL, 0x1D35FUL ), /* Tai Xuan Hing Symbols */ + AF_UNIRANGE_REC( 0x1F200UL, 0x1F2FFUL ), /* Enclosed Ideographic Supplement */ + AF_UNIRANGE_REC( 0x20000UL, 0x2A6DFUL ), /* CJK Unified Ideographs Extension B */ + AF_UNIRANGE_REC( 0x2A700UL, 0x2B73FUL ), /* CJK Unified Ideographs Extension C */ + AF_UNIRANGE_REC( 0x2B740UL, 0x2B81FUL ), /* CJK Unified Ideographs Extension D */ + AF_UNIRANGE_REC( 0x2F800UL, 0x2FA1FUL ), /* CJK Compatibility Ideographs Supplement */ + AF_UNIRANGE_REC( 0UL, 0UL ) + }; + + + AF_DEFINE_SCRIPT_CLASS( af_cjk_script_class, + AF_SCRIPT_CJK, + af_cjk_uniranges, + + sizeof ( AF_CJKMetricsRec ), + + (AF_Script_InitMetricsFunc) af_cjk_metrics_init, + (AF_Script_ScaleMetricsFunc)af_cjk_metrics_scale, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) af_cjk_hints_init, + (AF_Script_ApplyHintsFunc) af_cjk_hints_apply + ) + +#else /* !AF_CONFIG_OPTION_CJK */ + + static const AF_Script_UniRangeRec af_cjk_uniranges[] = + { + AF_UNIRANGE_REC( 0UL, 0UL ) + }; + + + AF_DEFINE_SCRIPT_CLASS( af_cjk_script_class, + AF_SCRIPT_CJK, + af_cjk_uniranges, + + sizeof ( AF_CJKMetricsRec ), + + (AF_Script_InitMetricsFunc) NULL, + (AF_Script_ScaleMetricsFunc)NULL, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) NULL, + (AF_Script_ApplyHintsFunc) NULL + ) + +#endif /* !AF_CONFIG_OPTION_CJK */ + + +/* END */ diff --git a/src/autofit/afcjk.h b/src/autofit/afcjk.h new file mode 100644 index 0000000..8416c0d --- /dev/null +++ b/src/autofit/afcjk.h @@ -0,0 +1,141 @@ +/***************************************************************************/ +/* */ +/* afcjk.h */ +/* */ +/* Auto-fitter hinting routines for CJK script (specification). */ +/* */ +/* Copyright 2006, 2007, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFCJK_H__ +#define __AFCJK_H__ + +#include "afhints.h" +#include "aflatin.h" + + +FT_BEGIN_HEADER + + + /* the CJK-specific script class */ + + AF_DECLARE_SCRIPT_CLASS(af_cjk_script_class) + + /* CJK (global) metrics management */ + + /* + * CJK glyphs tend to fill the square. So we have both vertical and + * horizontal blue zones. But some glyphs have flat bounding strokes that + * leave some space between neighbour glyphs. + */ + enum + { + AF_CJK_BLUE_TOP, + AF_CJK_BLUE_BOTTOM, + AF_CJK_BLUE_LEFT, + AF_CJK_BLUE_RIGHT, + + AF_CJK_BLUE_MAX + }; + + +#define AF_CJK_MAX_WIDTHS 16 +#define AF_CJK_MAX_BLUES AF_CJK_BLUE_MAX + + + enum + { + AF_CJK_BLUE_ACTIVE = 1 << 0, + AF_CJK_BLUE_IS_TOP = 1 << 1, + AF_CJK_BLUE_IS_RIGHT = 1 << 2, + AF_CJK_BLUE_ADJUSTMENT = 1 << 3, /* used for scale adjustment */ + /* optimization */ + AF_CJK_BLUE_FLAG_MAX + }; + + + typedef struct AF_CJKBlueRec_ + { + AF_WidthRec ref; + AF_WidthRec shoot; /* undershoot */ + FT_UInt flags; + + } AF_CJKBlueRec, *AF_CJKBlue; + + + typedef struct AF_CJKAxisRec_ + { + FT_Fixed scale; + FT_Pos delta; + + FT_UInt width_count; + AF_WidthRec widths[AF_CJK_MAX_WIDTHS]; + FT_Pos edge_distance_threshold; + FT_Pos standard_width; + FT_Bool extra_light; + + /* used for horizontal metrics too for CJK */ + FT_Bool control_overshoot; + FT_UInt blue_count; + AF_CJKBlueRec blues[AF_CJK_BLUE_MAX]; + + FT_Fixed org_scale; + FT_Pos org_delta; + + } AF_CJKAxisRec, *AF_CJKAxis; + + + typedef struct AF_CJKMetricsRec_ + { + AF_ScriptMetricsRec root; + FT_UInt units_per_em; + AF_CJKAxisRec axis[AF_DIMENSION_MAX]; + + } AF_CJKMetricsRec, *AF_CJKMetrics; + + + FT_LOCAL( FT_Error ) + af_cjk_metrics_init( AF_CJKMetrics metrics, + FT_Face face ); + + FT_LOCAL( void ) + af_cjk_metrics_scale( AF_CJKMetrics metrics, + AF_Scaler scaler ); + + FT_LOCAL( FT_Error ) + af_cjk_hints_init( AF_GlyphHints hints, + AF_CJKMetrics metrics ); + + FT_LOCAL( FT_Error ) + af_cjk_hints_apply( AF_GlyphHints hints, + FT_Outline* outline, + AF_CJKMetrics metrics ); + + /* Shared. called from afindic.c */ + FT_LOCAL( void ) + af_cjk_metrics_check_digits( AF_CJKMetrics metrics, + FT_Face face ); + + FT_LOCAL( void ) + af_cjk_metrics_init_widths( AF_CJKMetrics metrics, + FT_Face face, + FT_ULong charcode ); + + +/* */ + +FT_END_HEADER + +#endif /* __AFCJK_H__ */ + + +/* END */ diff --git a/src/autofit/afdummy.c b/src/autofit/afdummy.c new file mode 100644 index 0000000..4bf278c --- /dev/null +++ b/src/autofit/afdummy.c @@ -0,0 +1,61 @@ +/***************************************************************************/ +/* */ +/* afdummy.c */ +/* */ +/* Auto-fitter dummy routines to be used if no hinting should be */ +/* performed (body). */ +/* */ +/* Copyright 2003-2005, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "afdummy.h" +#include "afhints.h" +#include "aferrors.h" + + + static FT_Error + af_dummy_hints_init( AF_GlyphHints hints, + AF_ScriptMetrics metrics ) + { + af_glyph_hints_rescale( hints, + metrics ); + return AF_Err_Ok; + } + + + static FT_Error + af_dummy_hints_apply( AF_GlyphHints hints, + FT_Outline* outline ) + { + FT_UNUSED( hints ); + FT_UNUSED( outline ); + + return AF_Err_Ok; + } + + + AF_DEFINE_SCRIPT_CLASS( af_dummy_script_class, + AF_SCRIPT_NONE, + NULL, + + sizeof ( AF_ScriptMetricsRec ), + + (AF_Script_InitMetricsFunc) NULL, + (AF_Script_ScaleMetricsFunc)NULL, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) af_dummy_hints_init, + (AF_Script_ApplyHintsFunc) af_dummy_hints_apply + ) + + +/* END */ diff --git a/src/autofit/afdummy.h b/src/autofit/afdummy.h new file mode 100644 index 0000000..95d8f8c --- /dev/null +++ b/src/autofit/afdummy.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* afdummy.h */ +/* */ +/* Auto-fitter dummy routines to be used if no hinting should be */ +/* performed (specification). */ +/* */ +/* Copyright 2003-2005, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFDUMMY_H__ +#define __AFDUMMY_H__ + +#include "aftypes.h" + + +FT_BEGIN_HEADER + + /* A dummy script metrics class used when no hinting should + * be performed. This is the default for non-latin glyphs! + */ + + AF_DECLARE_SCRIPT_CLASS( af_dummy_script_class ) + +/* */ + +FT_END_HEADER + + +#endif /* __AFDUMMY_H__ */ + + +/* END */ diff --git a/src/autofit/aferrors.h b/src/autofit/aferrors.h new file mode 100644 index 0000000..50e1a22 --- /dev/null +++ b/src/autofit/aferrors.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* aferrors.h */ +/* */ +/* Autofitter error codes (specification only). */ +/* */ +/* Copyright 2005, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the Autofitter error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __AFERRORS_H__ +#define __AFERRORS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX AF_Err_ +#define FT_ERR_BASE FT_Mod_Err_Autofit + +#include FT_ERRORS_H + +#endif /* __AFERRORS_H__ */ + +/* END */ diff --git a/src/autofit/afglobal.c b/src/autofit/afglobal.c new file mode 100644 index 0000000..3e0c02d --- /dev/null +++ b/src/autofit/afglobal.c @@ -0,0 +1,319 @@ +/***************************************************************************/ +/* */ +/* afglobal.c */ +/* */ +/* Auto-fitter routines to compute global hinting values (body). */ +/* */ +/* Copyright 2003-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "afglobal.h" +#include "afdummy.h" +#include "aflatin.h" +#include "afcjk.h" +#include "afindic.h" +#include "afpic.h" + +#include "aferrors.h" + +#ifdef FT_OPTION_AUTOFIT2 +#include "aflatin2.h" +#endif + +#ifndef FT_CONFIG_OPTION_PIC + + /* when updating this table, don't forget to update */ + /* AF_SCRIPT_CLASSES_COUNT and autofit_module_class_pic_init */ + + /* populate this list when you add new scripts */ + static AF_ScriptClass const af_script_classes[] = + { + &af_dummy_script_class, +#ifdef FT_OPTION_AUTOFIT2 + &af_latin2_script_class, +#endif + &af_latin_script_class, + &af_cjk_script_class, + &af_indic_script_class, + NULL /* do not remove */ + }; + +#endif /* !FT_CONFIG_OPTION_PIC */ + + /* index of default script in `af_script_classes' */ +#define AF_SCRIPT_LIST_DEFAULT 2 + /* a bit mask indicating an uncovered glyph */ +#define AF_SCRIPT_LIST_NONE 0x7F + /* if this flag is set, we have an ASCII digit */ +#define AF_DIGIT 0x80 + + + /* + * Note that glyph_scripts[] is used to map each glyph into + * an index into the `af_script_classes' array. + * + */ + typedef struct AF_FaceGlobalsRec_ + { + FT_Face face; + FT_Long glyph_count; /* same as face->num_glyphs */ + FT_Byte* glyph_scripts; + + AF_ScriptMetrics metrics[AF_SCRIPT_MAX]; + + } AF_FaceGlobalsRec; + + + /* Compute the script index of each glyph within a given face. */ + + static FT_Error + af_face_globals_compute_script_coverage( AF_FaceGlobals globals ) + { + FT_Error error = AF_Err_Ok; + FT_Face face = globals->face; + FT_CharMap old_charmap = face->charmap; + FT_Byte* gscripts = globals->glyph_scripts; + FT_UInt ss, i; + + + /* the value AF_SCRIPT_LIST_NONE means `uncovered glyph' */ + FT_MEM_SET( globals->glyph_scripts, + AF_SCRIPT_LIST_NONE, + globals->glyph_count ); + + error = FT_Select_Charmap( face, FT_ENCODING_UNICODE ); + if ( error ) + { + /* + * Ignore this error; we simply use the default script. + * XXX: Shouldn't we rather disable hinting? + */ + error = AF_Err_Ok; + goto Exit; + } + + /* scan each script in a Unicode charmap */ + for ( ss = 0; AF_SCRIPT_CLASSES_GET[ss]; ss++ ) + { + AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[ss]; + AF_Script_UniRange range; + + + if ( clazz->script_uni_ranges == NULL ) + continue; + + /* + * Scan all unicode points in the range and set the corresponding + * glyph script index. + */ + for ( range = clazz->script_uni_ranges; range->first != 0; range++ ) + { + FT_ULong charcode = range->first; + FT_UInt gindex; + + + gindex = FT_Get_Char_Index( face, charcode ); + + if ( gindex != 0 && + gindex < (FT_ULong)globals->glyph_count && + gscripts[gindex] == AF_SCRIPT_LIST_NONE ) + gscripts[gindex] = (FT_Byte)ss; + + for (;;) + { + charcode = FT_Get_Next_Char( face, charcode, &gindex ); + + if ( gindex == 0 || charcode > range->last ) + break; + + if ( gindex < (FT_ULong)globals->glyph_count && + gscripts[gindex] == AF_SCRIPT_LIST_NONE ) + gscripts[gindex] = (FT_Byte)ss; + } + } + } + + /* mark ASCII digits */ + for ( i = 0x30; i <= 0x39; i++ ) + { + FT_UInt gindex = FT_Get_Char_Index( face, i ); + + + if ( gindex != 0 && gindex < (FT_ULong)globals->glyph_count ) + gscripts[gindex] |= AF_DIGIT; + } + + Exit: + /* + * By default, all uncovered glyphs are set to the latin script. + * XXX: Shouldn't we disable hinting or do something similar? + */ + { + FT_Long nn; + + + for ( nn = 0; nn < globals->glyph_count; nn++ ) + { + if ( ( gscripts[nn] & ~AF_DIGIT ) == AF_SCRIPT_LIST_NONE ) + { + gscripts[nn] &= ~AF_SCRIPT_LIST_NONE; + gscripts[nn] |= AF_SCRIPT_LIST_DEFAULT; + } + } + } + + FT_Set_Charmap( face, old_charmap ); + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + af_face_globals_new( FT_Face face, + AF_FaceGlobals *aglobals ) + { + FT_Error error; + FT_Memory memory; + AF_FaceGlobals globals = NULL; + + + memory = face->memory; + + if ( !FT_ALLOC( globals, sizeof ( *globals ) + + face->num_glyphs * sizeof ( FT_Byte ) ) ) + { + globals->face = face; + globals->glyph_count = face->num_glyphs; + globals->glyph_scripts = (FT_Byte*)( globals + 1 ); + + error = af_face_globals_compute_script_coverage( globals ); + if ( error ) + { + af_face_globals_free( globals ); + globals = NULL; + } + } + + *aglobals = globals; + return error; + } + + + FT_LOCAL_DEF( void ) + af_face_globals_free( AF_FaceGlobals globals ) + { + if ( globals ) + { + FT_Memory memory = globals->face->memory; + FT_UInt nn; + + + for ( nn = 0; nn < AF_SCRIPT_MAX; nn++ ) + { + if ( globals->metrics[nn] ) + { + AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[nn]; + + + FT_ASSERT( globals->metrics[nn]->clazz == clazz ); + + if ( clazz->script_metrics_done ) + clazz->script_metrics_done( globals->metrics[nn] ); + + FT_FREE( globals->metrics[nn] ); + } + } + + globals->glyph_count = 0; + globals->glyph_scripts = NULL; /* no need to free this one! */ + globals->face = NULL; + + FT_FREE( globals ); + } + } + + + FT_LOCAL_DEF( FT_Error ) + af_face_globals_get_metrics( AF_FaceGlobals globals, + FT_UInt gindex, + FT_UInt options, + AF_ScriptMetrics *ametrics ) + { + AF_ScriptMetrics metrics = NULL; + FT_UInt gidx; + AF_ScriptClass clazz; + FT_UInt script = options & 15; + const FT_Offset script_max = sizeof ( AF_SCRIPT_CLASSES_GET ) / + sizeof ( AF_SCRIPT_CLASSES_GET[0] ); + FT_Error error = AF_Err_Ok; + + + if ( gindex >= (FT_ULong)globals->glyph_count ) + { + error = AF_Err_Invalid_Argument; + goto Exit; + } + + gidx = script; + if ( gidx == 0 || gidx + 1 >= script_max ) + gidx = globals->glyph_scripts[gindex] & AF_SCRIPT_LIST_NONE; + + clazz = AF_SCRIPT_CLASSES_GET[gidx]; + if ( script == 0 ) + script = clazz->script; + + metrics = globals->metrics[clazz->script]; + if ( metrics == NULL ) + { + /* create the global metrics object when needed */ + FT_Memory memory = globals->face->memory; + + + if ( FT_ALLOC( metrics, clazz->script_metrics_size ) ) + goto Exit; + + metrics->clazz = clazz; + + if ( clazz->script_metrics_init ) + { + error = clazz->script_metrics_init( metrics, globals->face ); + if ( error ) + { + if ( clazz->script_metrics_done ) + clazz->script_metrics_done( metrics ); + + FT_FREE( metrics ); + goto Exit; + } + } + + globals->metrics[clazz->script] = metrics; + } + + Exit: + *ametrics = metrics; + + return error; + } + + + FT_LOCAL_DEF( FT_Bool ) + af_face_globals_is_digit( AF_FaceGlobals globals, + FT_UInt gindex ) + { + if ( gindex < (FT_ULong)globals->glyph_count ) + return (FT_Bool)( globals->glyph_scripts[gindex] & AF_DIGIT ); + + return (FT_Bool)0; + } + + +/* END */ diff --git a/src/autofit/afglobal.h b/src/autofit/afglobal.h new file mode 100644 index 0000000..cc6860b --- /dev/null +++ b/src/autofit/afglobal.h @@ -0,0 +1,71 @@ +/***************************************************************************/ +/* */ +/* afglobal.h */ +/* */ +/* Auto-fitter routines to compute global hinting values */ +/* (specification). */ +/* */ +/* Copyright 2003-2005, 2007, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFGLOBAL_H__ +#define __AFGLOBAL_H__ + + +#include "aftypes.h" + + +FT_BEGIN_HEADER + + + /************************************************************************/ + /************************************************************************/ + /***** *****/ + /***** F A C E G L O B A L S *****/ + /***** *****/ + /************************************************************************/ + /************************************************************************/ + + + /* + * model the global hints data for a given face, decomposed into + * script-specific items + */ + typedef struct AF_FaceGlobalsRec_* AF_FaceGlobals; + + + FT_LOCAL( FT_Error ) + af_face_globals_new( FT_Face face, + AF_FaceGlobals *aglobals ); + + FT_LOCAL( FT_Error ) + af_face_globals_get_metrics( AF_FaceGlobals globals, + FT_UInt gindex, + FT_UInt options, + AF_ScriptMetrics *ametrics ); + + FT_LOCAL( void ) + af_face_globals_free( AF_FaceGlobals globals ); + + FT_LOCAL_DEF( FT_Bool ) + af_face_globals_is_digit( AF_FaceGlobals globals, + FT_UInt gindex ); + + /* */ + + +FT_END_HEADER + +#endif /* __AFGLOBAL_H__ */ + + +/* END */ diff --git a/src/autofit/afhints.c b/src/autofit/afhints.c new file mode 100644 index 0000000..f51066f --- /dev/null +++ b/src/autofit/afhints.c @@ -0,0 +1,1299 @@ +/***************************************************************************/ +/* */ +/* afhints.c */ +/* */ +/* Auto-fitter hinting routines (body). */ +/* */ +/* Copyright 2003-2007, 2009-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "afhints.h" +#include "aferrors.h" +#include FT_INTERNAL_CALC_H + + + /* Get new segment for given axis. */ + + FT_LOCAL_DEF( FT_Error ) + af_axis_hints_new_segment( AF_AxisHints axis, + FT_Memory memory, + AF_Segment *asegment ) + { + FT_Error error = AF_Err_Ok; + AF_Segment segment = NULL; + + + if ( axis->num_segments >= axis->max_segments ) + { + FT_Int old_max = axis->max_segments; + FT_Int new_max = old_max; + FT_Int big_max = (FT_Int)( FT_INT_MAX / sizeof ( *segment ) ); + + + if ( old_max >= big_max ) + { + error = AF_Err_Out_Of_Memory; + goto Exit; + } + + new_max += ( new_max >> 2 ) + 4; + if ( new_max < old_max || new_max > big_max ) + new_max = big_max; + + if ( FT_RENEW_ARRAY( axis->segments, old_max, new_max ) ) + goto Exit; + + axis->max_segments = new_max; + } + + segment = axis->segments + axis->num_segments++; + + Exit: + *asegment = segment; + return error; + } + + + /* Get new edge for given axis, direction, and position. */ + + FT_LOCAL( FT_Error ) + af_axis_hints_new_edge( AF_AxisHints axis, + FT_Int fpos, + AF_Direction dir, + FT_Memory memory, + AF_Edge *aedge ) + { + FT_Error error = AF_Err_Ok; + AF_Edge edge = NULL; + AF_Edge edges; + + + if ( axis->num_edges >= axis->max_edges ) + { + FT_Int old_max = axis->max_edges; + FT_Int new_max = old_max; + FT_Int big_max = (FT_Int)( FT_INT_MAX / sizeof ( *edge ) ); + + + if ( old_max >= big_max ) + { + error = AF_Err_Out_Of_Memory; + goto Exit; + } + + new_max += ( new_max >> 2 ) + 4; + if ( new_max < old_max || new_max > big_max ) + new_max = big_max; + + if ( FT_RENEW_ARRAY( axis->edges, old_max, new_max ) ) + goto Exit; + + axis->max_edges = new_max; + } + + edges = axis->edges; + edge = edges + axis->num_edges; + + while ( edge > edges ) + { + if ( edge[-1].fpos < fpos ) + break; + + /* we want the edge with same position and minor direction */ + /* to appear before those in the major one in the list */ + if ( edge[-1].fpos == fpos && dir == axis->major_dir ) + break; + + edge[0] = edge[-1]; + edge--; + } + + axis->num_edges++; + + FT_ZERO( edge ); + edge->fpos = (FT_Short)fpos; + edge->dir = (FT_Char)dir; + + Exit: + *aedge = edge; + return error; + } + + +#ifdef FT_DEBUG_AUTOFIT + +#include FT_CONFIG_STANDARD_LIBRARY_H + + static const char* + af_dir_str( AF_Direction dir ) + { + const char* result; + + + switch ( dir ) + { + case AF_DIR_UP: + result = "up"; + break; + case AF_DIR_DOWN: + result = "down"; + break; + case AF_DIR_LEFT: + result = "left"; + break; + case AF_DIR_RIGHT: + result = "right"; + break; + default: + result = "none"; + } + + return result; + } + + +#define AF_INDEX_NUM( ptr, base ) ( (ptr) ? ( (ptr) - (base) ) : -1 ) + + +#ifdef __cplusplus + extern "C" { +#endif + void + af_glyph_hints_dump_points( AF_GlyphHints hints ) + { + AF_Point points = hints->points; + AF_Point limit = points + hints->num_points; + AF_Point point; + + + printf( "Table of points:\n" ); + printf( " [ index | xorg | yorg | xscale | yscale" + " | xfit | yfit | flags ]\n" ); + + for ( point = points; point < limit; point++ ) + { + printf( " [ %5d | %5d | %5d | %6.2f | %6.2f" + " | %5.2f | %5.2f | %c%c%c%c%c%c ]\n", + point - points, + point->fx, + point->fy, + point->ox / 64.0, + point->oy / 64.0, + point->x / 64.0, + point->y / 64.0, + ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) ? 'w' : ' ', + ( point->flags & AF_FLAG_INFLECTION ) ? 'i' : ' ', + ( point->flags & AF_FLAG_EXTREMA_X ) ? '<' : ' ', + ( point->flags & AF_FLAG_EXTREMA_Y ) ? 'v' : ' ', + ( point->flags & AF_FLAG_ROUND_X ) ? '(' : ' ', + ( point->flags & AF_FLAG_ROUND_Y ) ? 'u' : ' '); + } + printf( "\n" ); + } +#ifdef __cplusplus + } +#endif + + + static const char* + af_edge_flags_to_string( AF_Edge_Flags flags ) + { + static char temp[32]; + int pos = 0; + + + if ( flags & AF_EDGE_ROUND ) + { + ft_memcpy( temp + pos, "round", 5 ); + pos += 5; + } + if ( flags & AF_EDGE_SERIF ) + { + if ( pos > 0 ) + temp[pos++] = ' '; + ft_memcpy( temp + pos, "serif", 5 ); + pos += 5; + } + if ( pos == 0 ) + return "normal"; + + temp[pos] = 0; + + return temp; + } + + + /* Dump the array of linked segments. */ + +#ifdef __cplusplus + extern "C" { +#endif + void + af_glyph_hints_dump_segments( AF_GlyphHints hints ) + { + FT_Int dimension; + + + for ( dimension = 1; dimension >= 0; dimension-- ) + { + AF_AxisHints axis = &hints->axis[dimension]; + AF_Segment segments = axis->segments; + AF_Segment limit = segments + axis->num_segments; + AF_Segment seg; + + + printf ( "Table of %s segments:\n", + dimension == AF_DIMENSION_HORZ ? "vertical" : "horizontal" ); + printf ( " [ index | pos | dir | link | serif |" + " height | extra | flags ]\n" ); + + for ( seg = segments; seg < limit; seg++ ) + { + printf ( " [ %5d | %5.2g | %5s | %4d | %5d | %6d | %5d | %11s ]\n", + seg - segments, + dimension == AF_DIMENSION_HORZ ? (int)seg->first->ox / 64.0 + : (int)seg->first->oy / 64.0, + af_dir_str( (AF_Direction)seg->dir ), + AF_INDEX_NUM( seg->link, segments ), + AF_INDEX_NUM( seg->serif, segments ), + seg->height, + seg->height - ( seg->max_coord - seg->min_coord ), + af_edge_flags_to_string( (AF_Edge_Flags)seg->flags ) ); + } + printf( "\n" ); + } + } +#ifdef __cplusplus + } +#endif + + + /* Fetch number of segments. */ + +#ifdef __cplusplus + extern "C" { +#endif + FT_Error + af_glyph_hints_get_num_segments( AF_GlyphHints hints, + FT_Int dimension, + FT_Int* num_segments ) + { + AF_Dimension dim; + AF_AxisHints axis; + + + dim = ( dimension == 0 ) ? AF_DIMENSION_HORZ : AF_DIMENSION_VERT; + + axis = &hints->axis[dim]; + *num_segments = axis->num_segments; + + return AF_Err_Ok; + } +#ifdef __cplusplus + } +#endif + + + /* Fetch offset of segments into user supplied offset array. */ + +#ifdef __cplusplus + extern "C" { +#endif + FT_Error + af_glyph_hints_get_segment_offset( AF_GlyphHints hints, + FT_Int dimension, + FT_Int idx, + FT_Pos* offset ) + { + AF_Dimension dim; + AF_AxisHints axis; + AF_Segment seg; + + + if ( !offset ) + return AF_Err_Invalid_Argument; + + dim = ( dimension == 0 ) ? AF_DIMENSION_HORZ : AF_DIMENSION_VERT; + + axis = &hints->axis[dim]; + + if ( idx < 0 || idx >= axis->num_segments ) + return AF_Err_Invalid_Argument; + + seg = &axis->segments[idx]; + *offset = (dim == AF_DIMENSION_HORZ) ? seg->first->ox + : seg->first->oy; + + return AF_Err_Ok; + } +#ifdef __cplusplus + } +#endif + + + /* Dump the array of linked edges. */ + +#ifdef __cplusplus + extern "C" { +#endif + void + af_glyph_hints_dump_edges( AF_GlyphHints hints ) + { + FT_Int dimension; + + + for ( dimension = 1; dimension >= 0; dimension-- ) + { + AF_AxisHints axis = &hints->axis[dimension]; + AF_Edge edges = axis->edges; + AF_Edge limit = edges + axis->num_edges; + AF_Edge edge; + + + /* + * note: AF_DIMENSION_HORZ corresponds to _vertical_ edges + * since they have a constant X coordinate. + */ + printf ( "Table of %s edges:\n", + dimension == AF_DIMENSION_HORZ ? "vertical" : "horizontal" ); + printf ( " [ index | pos | dir | link |" + " serif | blue | opos | pos | flags ]\n" ); + + for ( edge = edges; edge < limit; edge++ ) + { + printf ( " [ %5d | %5.2g | %5s | %4d |" + " %5d | %c | %5.2f | %5.2f | %11s ]\n", + edge - edges, + (int)edge->opos / 64.0, + af_dir_str( (AF_Direction)edge->dir ), + AF_INDEX_NUM( edge->link, edges ), + AF_INDEX_NUM( edge->serif, edges ), + edge->blue_edge ? 'y' : 'n', + edge->opos / 64.0, + edge->pos / 64.0, + af_edge_flags_to_string( (AF_Edge_Flags)edge->flags ) ); + } + printf( "\n" ); + } + } +#ifdef __cplusplus + } +#endif + +#else /* !FT_DEBUG_AUTOFIT */ + + /* these empty stubs are only used to link the `ftgrid' test program */ + /* if debugging is disabled */ + +#ifdef __cplusplus + extern "C" { +#endif + + void + af_glyph_hints_dump_points( AF_GlyphHints hints ) + { + FT_UNUSED( hints ); + } + + + void + af_glyph_hints_dump_segments( AF_GlyphHints hints ) + { + FT_UNUSED( hints ); + } + + + FT_Error + af_glyph_hints_get_num_segments( AF_GlyphHints hints, + FT_Int dimension, + FT_Int* num_segments ) + { + FT_UNUSED( hints ); + FT_UNUSED( dimension ); + FT_UNUSED( num_segments ); + + return 0; + } + + + FT_Error + af_glyph_hints_get_segment_offset( AF_GlyphHints hints, + FT_Int dimension, + FT_Int idx, + FT_Pos* offset ) + { + FT_UNUSED( hints ); + FT_UNUSED( dimension ); + FT_UNUSED( idx ); + FT_UNUSED( offset ); + + return 0; + } + + + void + af_glyph_hints_dump_edges( AF_GlyphHints hints ) + { + FT_UNUSED( hints ); + } + +#ifdef __cplusplus + } +#endif + +#endif /* !FT_DEBUG_AUTOFIT */ + + + /* Compute the direction value of a given vector. */ + + FT_LOCAL_DEF( AF_Direction ) + af_direction_compute( FT_Pos dx, + FT_Pos dy ) + { + FT_Pos ll, ss; /* long and short arm lengths */ + AF_Direction dir; /* candidate direction */ + + + if ( dy >= dx ) + { + if ( dy >= -dx ) + { + dir = AF_DIR_UP; + ll = dy; + ss = dx; + } + else + { + dir = AF_DIR_LEFT; + ll = -dx; + ss = dy; + } + } + else /* dy < dx */ + { + if ( dy >= -dx ) + { + dir = AF_DIR_RIGHT; + ll = dx; + ss = dy; + } + else + { + dir = AF_DIR_DOWN; + ll = dy; + ss = dx; + } + } + + /* return no direction if arm lengths differ too much */ + /* (value 14 is heuristic) */ + ss *= 14; + if ( FT_ABS( ll ) <= FT_ABS( ss ) ) + dir = AF_DIR_NONE; + + return dir; + } + + + FT_LOCAL_DEF( void ) + af_glyph_hints_init( AF_GlyphHints hints, + FT_Memory memory ) + { + FT_ZERO( hints ); + hints->memory = memory; + } + + + FT_LOCAL_DEF( void ) + af_glyph_hints_done( AF_GlyphHints hints ) + { + if ( hints && hints->memory ) + { + FT_Memory memory = hints->memory; + int dim; + + + /* + * note that we don't need to free the segment and edge + * buffers since they are really within the hints->points array + */ + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_AxisHints axis = &hints->axis[dim]; + + + axis->num_segments = 0; + axis->max_segments = 0; + FT_FREE( axis->segments ); + + axis->num_edges = 0; + axis->max_edges = 0; + FT_FREE( axis->edges ); + } + + FT_FREE( hints->contours ); + hints->max_contours = 0; + hints->num_contours = 0; + + FT_FREE( hints->points ); + hints->num_points = 0; + hints->max_points = 0; + + hints->memory = NULL; + } + } + + + /* Reset metrics. */ + + FT_LOCAL_DEF( void ) + af_glyph_hints_rescale( AF_GlyphHints hints, + AF_ScriptMetrics metrics ) + { + hints->metrics = metrics; + hints->scaler_flags = metrics->scaler.flags; + } + + + /* Recompute all AF_Point in AF_GlyphHints from the definitions */ + /* in a source outline. */ + + FT_LOCAL_DEF( FT_Error ) + af_glyph_hints_reload( AF_GlyphHints hints, + FT_Outline* outline ) + { + FT_Error error = AF_Err_Ok; + AF_Point points; + FT_UInt old_max, new_max; + FT_Fixed x_scale = hints->x_scale; + FT_Fixed y_scale = hints->y_scale; + FT_Pos x_delta = hints->x_delta; + FT_Pos y_delta = hints->y_delta; + FT_Memory memory = hints->memory; + + + hints->num_points = 0; + hints->num_contours = 0; + + hints->axis[0].num_segments = 0; + hints->axis[0].num_edges = 0; + hints->axis[1].num_segments = 0; + hints->axis[1].num_edges = 0; + + /* first of all, reallocate the contours array if necessary */ + new_max = (FT_UInt)outline->n_contours; + old_max = hints->max_contours; + if ( new_max > old_max ) + { + new_max = ( new_max + 3 ) & ~3; /* round up to a multiple of 4 */ + + if ( FT_RENEW_ARRAY( hints->contours, old_max, new_max ) ) + goto Exit; + + hints->max_contours = new_max; + } + + /* + * then reallocate the points arrays if necessary -- + * note that we reserve two additional point positions, used to + * hint metrics appropriately + */ + new_max = (FT_UInt)( outline->n_points + 2 ); + old_max = hints->max_points; + if ( new_max > old_max ) + { + new_max = ( new_max + 2 + 7 ) & ~7; /* round up to a multiple of 8 */ + + if ( FT_RENEW_ARRAY( hints->points, old_max, new_max ) ) + goto Exit; + + hints->max_points = new_max; + } + + hints->num_points = outline->n_points; + hints->num_contours = outline->n_contours; + + /* We can't rely on the value of `FT_Outline.flags' to know the fill */ + /* direction used for a glyph, given that some fonts are broken (e.g., */ + /* the Arphic ones). We thus recompute it each time we need to. */ + /* */ + hints->axis[AF_DIMENSION_HORZ].major_dir = AF_DIR_UP; + hints->axis[AF_DIMENSION_VERT].major_dir = AF_DIR_LEFT; + + if ( FT_Outline_Get_Orientation( outline ) == FT_ORIENTATION_POSTSCRIPT ) + { + hints->axis[AF_DIMENSION_HORZ].major_dir = AF_DIR_DOWN; + hints->axis[AF_DIMENSION_VERT].major_dir = AF_DIR_RIGHT; + } + + hints->x_scale = x_scale; + hints->y_scale = y_scale; + hints->x_delta = x_delta; + hints->y_delta = y_delta; + + hints->xmin_delta = 0; + hints->xmax_delta = 0; + + points = hints->points; + if ( hints->num_points == 0 ) + goto Exit; + + { + AF_Point point; + AF_Point point_limit = points + hints->num_points; + + + /* compute coordinates & Bezier flags, next and prev */ + { + FT_Vector* vec = outline->points; + char* tag = outline->tags; + AF_Point end = points + outline->contours[0]; + AF_Point prev = end; + FT_Int contour_index = 0; + + + for ( point = points; point < point_limit; point++, vec++, tag++ ) + { + point->fx = (FT_Short)vec->x; + point->fy = (FT_Short)vec->y; + point->ox = point->x = FT_MulFix( vec->x, x_scale ) + x_delta; + point->oy = point->y = FT_MulFix( vec->y, y_scale ) + y_delta; + + switch ( FT_CURVE_TAG( *tag ) ) + { + case FT_CURVE_TAG_CONIC: + point->flags = AF_FLAG_CONIC; + break; + case FT_CURVE_TAG_CUBIC: + point->flags = AF_FLAG_CUBIC; + break; + default: + point->flags = AF_FLAG_NONE; + } + + point->prev = prev; + prev->next = point; + prev = point; + + if ( point == end ) + { + if ( ++contour_index < outline->n_contours ) + { + end = points + outline->contours[contour_index]; + prev = end; + } + } + } + } + + /* set up the contours array */ + { + AF_Point* contour = hints->contours; + AF_Point* contour_limit = contour + hints->num_contours; + short* end = outline->contours; + short idx = 0; + + + for ( ; contour < contour_limit; contour++, end++ ) + { + contour[0] = points + idx; + idx = (short)( end[0] + 1 ); + } + } + + /* compute directions of in & out vectors */ + { + AF_Point first = points; + AF_Point prev = NULL; + FT_Pos in_x = 0; + FT_Pos in_y = 0; + AF_Direction in_dir = AF_DIR_NONE; + + + for ( point = points; point < point_limit; point++ ) + { + AF_Point next; + FT_Pos out_x, out_y; + + + if ( point == first ) + { + prev = first->prev; + in_x = first->fx - prev->fx; + in_y = first->fy - prev->fy; + in_dir = af_direction_compute( in_x, in_y ); + first = prev + 1; + } + + point->in_dir = (FT_Char)in_dir; + + next = point->next; + out_x = next->fx - point->fx; + out_y = next->fy - point->fy; + + in_dir = af_direction_compute( out_x, out_y ); + point->out_dir = (FT_Char)in_dir; + + /* check for weak points */ + + if ( point->flags & ( AF_FLAG_CONIC | AF_FLAG_CUBIC ) ) + { + Is_Weak_Point: + point->flags |= AF_FLAG_WEAK_INTERPOLATION; + } + else if ( point->out_dir == point->in_dir ) + { + if ( point->out_dir != AF_DIR_NONE ) + goto Is_Weak_Point; + + if ( ft_corner_is_flat( in_x, in_y, out_x, out_y ) ) + goto Is_Weak_Point; + } + else if ( point->in_dir == -point->out_dir ) + goto Is_Weak_Point; + + in_x = out_x; + in_y = out_y; + prev = point; + } + } + } + + Exit: + return error; + } + + + /* Store the hinted outline in an FT_Outline structure. */ + + FT_LOCAL_DEF( void ) + af_glyph_hints_save( AF_GlyphHints hints, + FT_Outline* outline ) + { + AF_Point point = hints->points; + AF_Point limit = point + hints->num_points; + FT_Vector* vec = outline->points; + char* tag = outline->tags; + + + for ( ; point < limit; point++, vec++, tag++ ) + { + vec->x = point->x; + vec->y = point->y; + + if ( point->flags & AF_FLAG_CONIC ) + tag[0] = FT_CURVE_TAG_CONIC; + else if ( point->flags & AF_FLAG_CUBIC ) + tag[0] = FT_CURVE_TAG_CUBIC; + else + tag[0] = FT_CURVE_TAG_ON; + } + } + + + /**************************************************************** + * + * EDGE POINT GRID-FITTING + * + ****************************************************************/ + + + /* Align all points of an edge to the same coordinate value, */ + /* either horizontally or vertically. */ + + FT_LOCAL_DEF( void ) + af_glyph_hints_align_edge_points( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = & hints->axis[dim]; + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + AF_Segment seg; + + + if ( dim == AF_DIMENSION_HORZ ) + { + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Edge edge = seg->edge; + AF_Point point, first, last; + + + if ( edge == NULL ) + continue; + + first = seg->first; + last = seg->last; + point = first; + for (;;) + { + point->x = edge->pos; + point->flags |= AF_FLAG_TOUCH_X; + + if ( point == last ) + break; + + point = point->next; + } + } + } + else + { + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Edge edge = seg->edge; + AF_Point point, first, last; + + + if ( edge == NULL ) + continue; + + first = seg->first; + last = seg->last; + point = first; + for (;;) + { + point->y = edge->pos; + point->flags |= AF_FLAG_TOUCH_Y; + + if ( point == last ) + break; + + point = point->next; + } + } + } + } + + + /**************************************************************** + * + * STRONG POINT INTERPOLATION + * + ****************************************************************/ + + + /* Hint the strong points -- this is equivalent to the TrueType `IP' */ + /* hinting instruction. */ + + FT_LOCAL_DEF( void ) + af_glyph_hints_align_strong_points( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_Point points = hints->points; + AF_Point point_limit = points + hints->num_points; + AF_AxisHints axis = &hints->axis[dim]; + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + AF_Flags touch_flag; + + + if ( dim == AF_DIMENSION_HORZ ) + touch_flag = AF_FLAG_TOUCH_X; + else + touch_flag = AF_FLAG_TOUCH_Y; + + if ( edges < edge_limit ) + { + AF_Point point; + AF_Edge edge; + + + for ( point = points; point < point_limit; point++ ) + { + FT_Pos u, ou, fu; /* point position */ + FT_Pos delta; + + + if ( point->flags & touch_flag ) + continue; + + /* if this point is candidate to weak interpolation, we */ + /* interpolate it after all strong points have been processed */ + + if ( ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) && + !( point->flags & AF_FLAG_INFLECTION ) ) + continue; + + if ( dim == AF_DIMENSION_VERT ) + { + u = point->fy; + ou = point->oy; + } + else + { + u = point->fx; + ou = point->ox; + } + + fu = u; + + /* is the point before the first edge? */ + edge = edges; + delta = edge->fpos - u; + if ( delta >= 0 ) + { + u = edge->pos - ( edge->opos - ou ); + goto Store_Point; + } + + /* is the point after the last edge? */ + edge = edge_limit - 1; + delta = u - edge->fpos; + if ( delta >= 0 ) + { + u = edge->pos + ( ou - edge->opos ); + goto Store_Point; + } + + { + FT_PtrDist min, max, mid; + FT_Pos fpos; + + + /* find enclosing edges */ + min = 0; + max = edge_limit - edges; + +#if 1 + /* for a small number of edges, a linear search is better */ + if ( max <= 8 ) + { + FT_PtrDist nn; + + + for ( nn = 0; nn < max; nn++ ) + if ( edges[nn].fpos >= u ) + break; + + if ( edges[nn].fpos == u ) + { + u = edges[nn].pos; + goto Store_Point; + } + min = nn; + } + else +#endif + while ( min < max ) + { + mid = ( max + min ) >> 1; + edge = edges + mid; + fpos = edge->fpos; + + if ( u < fpos ) + max = mid; + else if ( u > fpos ) + min = mid + 1; + else + { + /* we are on the edge */ + u = edge->pos; + goto Store_Point; + } + } + + /* point is not on an edge */ + { + AF_Edge before = edges + min - 1; + AF_Edge after = edges + min + 0; + + + /* assert( before && after && before != after ) */ + if ( before->scale == 0 ) + before->scale = FT_DivFix( after->pos - before->pos, + after->fpos - before->fpos ); + + u = before->pos + FT_MulFix( fu - before->fpos, + before->scale ); + } + } + + Store_Point: + /* save the point position */ + if ( dim == AF_DIMENSION_HORZ ) + point->x = u; + else + point->y = u; + + point->flags |= touch_flag; + } + } + } + + + /**************************************************************** + * + * WEAK POINT INTERPOLATION + * + ****************************************************************/ + + + /* Shift the original coordinates of all points between `p1' and */ + /* `p2' to get hinted coordinates, using the same difference as */ + /* given by `ref'. */ + + static void + af_iup_shift( AF_Point p1, + AF_Point p2, + AF_Point ref ) + { + AF_Point p; + FT_Pos delta = ref->u - ref->v; + + + if ( delta == 0 ) + return; + + for ( p = p1; p < ref; p++ ) + p->u = p->v + delta; + + for ( p = ref + 1; p <= p2; p++ ) + p->u = p->v + delta; + } + + + /* Interpolate the original coordinates of all points between `p1' and */ + /* `p2' to get hinted coordinates, using `ref1' and `ref2' as the */ + /* reference points. The `u' and `v' members are the current and */ + /* original coordinate values, respectively. */ + /* */ + /* Details can be found in the TrueType bytecode specification. */ + + static void + af_iup_interp( AF_Point p1, + AF_Point p2, + AF_Point ref1, + AF_Point ref2 ) + { + AF_Point p; + FT_Pos u; + FT_Pos v1 = ref1->v; + FT_Pos v2 = ref2->v; + FT_Pos d1 = ref1->u - v1; + FT_Pos d2 = ref2->u - v2; + + + if ( p1 > p2 ) + return; + + if ( v1 == v2 ) + { + for ( p = p1; p <= p2; p++ ) + { + u = p->v; + + if ( u <= v1 ) + u += d1; + else + u += d2; + + p->u = u; + } + return; + } + + if ( v1 < v2 ) + { + for ( p = p1; p <= p2; p++ ) + { + u = p->v; + + if ( u <= v1 ) + u += d1; + else if ( u >= v2 ) + u += d2; + else + u = ref1->u + FT_MulDiv( u - v1, ref2->u - ref1->u, v2 - v1 ); + + p->u = u; + } + } + else + { + for ( p = p1; p <= p2; p++ ) + { + u = p->v; + + if ( u <= v2 ) + u += d2; + else if ( u >= v1 ) + u += d1; + else + u = ref1->u + FT_MulDiv( u - v1, ref2->u - ref1->u, v2 - v1 ); + + p->u = u; + } + } + } + + + /* Hint the weak points -- this is equivalent to the TrueType `IUP' */ + /* hinting instruction. */ + + FT_LOCAL_DEF( void ) + af_glyph_hints_align_weak_points( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_Point points = hints->points; + AF_Point point_limit = points + hints->num_points; + AF_Point* contour = hints->contours; + AF_Point* contour_limit = contour + hints->num_contours; + AF_Flags touch_flag; + AF_Point point; + AF_Point end_point; + AF_Point first_point; + + + /* PASS 1: Move segment points to edge positions */ + + if ( dim == AF_DIMENSION_HORZ ) + { + touch_flag = AF_FLAG_TOUCH_X; + + for ( point = points; point < point_limit; point++ ) + { + point->u = point->x; + point->v = point->ox; + } + } + else + { + touch_flag = AF_FLAG_TOUCH_Y; + + for ( point = points; point < point_limit; point++ ) + { + point->u = point->y; + point->v = point->oy; + } + } + + point = points; + + for ( ; contour < contour_limit; contour++ ) + { + AF_Point first_touched, last_touched; + + + point = *contour; + end_point = point->prev; + first_point = point; + + /* find first touched point */ + for (;;) + { + if ( point > end_point ) /* no touched point in contour */ + goto NextContour; + + if ( point->flags & touch_flag ) + break; + + point++; + } + + first_touched = point; + last_touched = point; + + for (;;) + { + FT_ASSERT( point <= end_point && + ( point->flags & touch_flag ) != 0 ); + + /* skip any touched neighbours */ + while ( point < end_point && + ( point[1].flags & touch_flag ) != 0 ) + point++; + + last_touched = point; + + /* find the next touched point, if any */ + point++; + for (;;) + { + if ( point > end_point ) + goto EndContour; + + if ( ( point->flags & touch_flag ) != 0 ) + break; + + point++; + } + + /* interpolate between last_touched and point */ + af_iup_interp( last_touched + 1, point - 1, + last_touched, point ); + } + + EndContour: + /* special case: only one point was touched */ + if ( last_touched == first_touched ) + af_iup_shift( first_point, end_point, first_touched ); + + else /* interpolate the last part */ + { + if ( last_touched < end_point ) + af_iup_interp( last_touched + 1, end_point, + last_touched, first_touched ); + + if ( first_touched > points ) + af_iup_interp( first_point, first_touched - 1, + last_touched, first_touched ); + } + + NextContour: + ; + } + + /* now save the interpolated values back to x/y */ + if ( dim == AF_DIMENSION_HORZ ) + { + for ( point = points; point < point_limit; point++ ) + point->x = point->u; + } + else + { + for ( point = points; point < point_limit; point++ ) + point->y = point->u; + } + } + + +#ifdef AF_CONFIG_OPTION_USE_WARPER + + /* Apply (small) warp scale and warp delta for given dimension. */ + + FT_LOCAL_DEF( void ) + af_glyph_hints_scale_dim( AF_GlyphHints hints, + AF_Dimension dim, + FT_Fixed scale, + FT_Pos delta ) + { + AF_Point points = hints->points; + AF_Point points_limit = points + hints->num_points; + AF_Point point; + + + if ( dim == AF_DIMENSION_HORZ ) + { + for ( point = points; point < points_limit; point++ ) + point->x = FT_MulFix( point->fx, scale ) + delta; + } + else + { + for ( point = points; point < points_limit; point++ ) + point->y = FT_MulFix( point->fy, scale ) + delta; + } + } + +#endif /* AF_CONFIG_OPTION_USE_WARPER */ + +/* END */ diff --git a/src/autofit/afhints.h b/src/autofit/afhints.h new file mode 100644 index 0000000..1c52e0d --- /dev/null +++ b/src/autofit/afhints.h @@ -0,0 +1,467 @@ +/***************************************************************************/ +/* */ +/* afhints.h */ +/* */ +/* Auto-fitter hinting routines (specification). */ +/* */ +/* Copyright 2003-2008, 2010-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFHINTS_H__ +#define __AFHINTS_H__ + +#include "aftypes.h" + +#define xxAF_SORT_SEGMENTS + +FT_BEGIN_HEADER + + /* + * The definition of outline glyph hints. These are shared by all + * script analysis routines (until now). + */ + + typedef enum AF_Dimension_ + { + AF_DIMENSION_HORZ = 0, /* x coordinates, */ + /* i.e., vertical segments & edges */ + AF_DIMENSION_VERT = 1, /* y coordinates, */ + /* i.e., horizontal segments & edges */ + + AF_DIMENSION_MAX /* do not remove */ + + } AF_Dimension; + + + /* hint directions -- the values are computed so that two vectors are */ + /* in opposite directions iff `dir1 + dir2 == 0' */ + typedef enum AF_Direction_ + { + AF_DIR_NONE = 4, + AF_DIR_RIGHT = 1, + AF_DIR_LEFT = -1, + AF_DIR_UP = 2, + AF_DIR_DOWN = -2 + + } AF_Direction; + + + /* + * The following explanations are mostly taken from the article + * + * Real-Time Grid Fitting of Typographic Outlines + * + * by David Turner and Werner Lemberg + * + * http://www.tug.org/TUGboat/Articles/tb24-3/lemberg.pdf + * + * + * Segments + * + * `af_{cjk,latin,...}_hints_compute_segments' are the functions to + * find segments in an outline. A segment is a series of consecutive + * points that are approximately aligned along a coordinate axis. The + * analysis to do so is specific to a script. + * + * A segment must have at least two points, except in the case of + * `fake' segments that are generated to hint metrics appropriately, + * and which consist of a single point. + * + * + * Edges + * + * As soon as segments are defined, the auto-hinter groups them into + * edges. An edge corresponds to a single position on the main + * dimension that collects one or more segments (allowing for a small + * threshold). + * + * The auto-hinter first tries to grid fit edges, then to align + * segments on the edges unless it detects that they form a serif. + * + * `af_{cjk,latin,...}_hints_compute_edges' are the functions to find + * edges; they are specific to a script. + * + * + * A H + * | | + * | | + * | | + * | | + * C | | F + * +------<-----+ +-----<------+ + * | B G | + * | | + * | | + * +--------------->------------------+ + * D E + * + * + * Stems + * + * Segments need to be `linked' to other ones in order to detect stems. + * A stem is made of two segments that face each other in opposite + * directions and that are sufficiently close to each other. Using + * vocabulary from the TrueType specification, stem segments form a + * `black distance'. + * + * In the above ASCII drawing, the horizontal segments are BC, DE, and + * FG; the vertical segments are AB, CD, EF, and GH. + * + * Each segment has at most one `best' candidate to form a black + * distance, or no candidate at all. Notice that two distinct segments + * can have the same candidate, which frequently means a serif. + * + * A stem is recognized by the following condition: + * + * best segment_1 = segment_2 && best segment_2 = segment_1 + * + * The best candidate is stored in field `link' in structure + * `AF_Segment'. + * + * Stems are detected by `af_{cjk,latin,...}_hint_edges'. + * + * In the above ASCII drawing, the best candidate for both AB and CD is + * GH, while the best candidate for GH is AB. Similarly, the best + * candidate for EF and GH is AB, while the best candidate for AB is + * GH. + * + * + * Serifs + * + * On the opposite, a serif has + * + * best segment_1 = segment_2 && best segment_2 != segment_1 + * + * where segment_1 corresponds to the serif segment (CD and EF in the + * above ASCII drawing). + * + * The best candidate is stored in field `serif' in structure + * `AF_Segment' (and `link' is set to NULL). + * + * Serifs are detected by `af_{cjk,latin,...}_hint_edges'. + * + * + * Touched points + * + * A point is called `touched' if it has been processed somehow by the + * auto-hinter. It basically means that it shouldn't be moved again + * (or moved only under certain constraints to preserve the already + * applied processing). + * + * + * Flat and round segments + * + * Segments are `round' or `flat', depending on the series of points + * that define them. A segment is round if the next and previous point + * of an extremum (which can be either a single point or sequence of + * points) are both conic or cubic control points. Otherwise, a + * segment with an extremum is flat. + * + * + * Strong Points + * + * Experience has shown that points which are not part of an edge need + * to be interpolated linearly between their two closest edges, even if + * these are not part of the contour of those particular points. + * Typical candidates for this are + * + * - angle points (i.e., points where the `in' and `out' direction + * differ greatly) + * + * - inflection points (i.e., where the `in' and `out' angles are the + * same, but the curvature changes sign) + * + * `af_glyph_hints_align_strong_points' is the function which takes + * care of such situations; it is equivalent to the TrueType `IP' + * hinting instruction. + * + * + * Weak Points + * + * Other points in the outline must be interpolated using the + * coordinates of their previous and next unfitted contour neighbours. + * These are called `weak points' and are touched by the function + * `af_glyph_hints_align_weak_points', equivalent to the TrueType `IUP' + * hinting instruction. Typical candidates are control points and + * points on the contour without a major direction. + * + * The major effect is to reduce possible distortion caused by + * alignment of edges and strong points, thus weak points are processed + * after strong points. + */ + + + /* point hint flags */ + typedef enum AF_Flags_ + { + AF_FLAG_NONE = 0, + + /* point type flags */ + AF_FLAG_CONIC = 1 << 0, + AF_FLAG_CUBIC = 1 << 1, + AF_FLAG_CONTROL = AF_FLAG_CONIC | AF_FLAG_CUBIC, + + /* point extremum flags */ + AF_FLAG_EXTREMA_X = 1 << 2, + AF_FLAG_EXTREMA_Y = 1 << 3, + + /* point roundness flags */ + AF_FLAG_ROUND_X = 1 << 4, + AF_FLAG_ROUND_Y = 1 << 5, + + /* point touch flags */ + AF_FLAG_TOUCH_X = 1 << 6, + AF_FLAG_TOUCH_Y = 1 << 7, + + /* candidates for weak interpolation have this flag set */ + AF_FLAG_WEAK_INTERPOLATION = 1 << 8, + + /* all inflection points in the outline have this flag set */ + AF_FLAG_INFLECTION = 1 << 9 + + } AF_Flags; + + + /* edge hint flags */ + typedef enum AF_Edge_Flags_ + { + AF_EDGE_NORMAL = 0, + AF_EDGE_ROUND = 1 << 0, + AF_EDGE_SERIF = 1 << 1, + AF_EDGE_DONE = 1 << 2 + + } AF_Edge_Flags; + + + typedef struct AF_PointRec_* AF_Point; + typedef struct AF_SegmentRec_* AF_Segment; + typedef struct AF_EdgeRec_* AF_Edge; + + + typedef struct AF_PointRec_ + { + FT_UShort flags; /* point flags used by hinter */ + FT_Char in_dir; /* direction of inwards vector */ + FT_Char out_dir; /* direction of outwards vector */ + + FT_Pos ox, oy; /* original, scaled position */ + FT_Short fx, fy; /* original, unscaled position (font units) */ + FT_Pos x, y; /* current position */ + FT_Pos u, v; /* current (x,y) or (y,x) depending on context */ + + AF_Point next; /* next point in contour */ + AF_Point prev; /* previous point in contour */ + + } AF_PointRec; + + + typedef struct AF_SegmentRec_ + { + FT_Byte flags; /* edge/segment flags for this segment */ + FT_Char dir; /* segment direction */ + FT_Short pos; /* position of segment */ + FT_Short min_coord; /* minimum coordinate of segment */ + FT_Short max_coord; /* maximum coordinate of segment */ + FT_Short height; /* the hinted segment height */ + + AF_Edge edge; /* the segment's parent edge */ + AF_Segment edge_next; /* link to next segment in parent edge */ + + AF_Segment link; /* (stem) link segment */ + AF_Segment serif; /* primary segment for serifs */ + FT_Pos num_linked; /* number of linked segments */ + FT_Pos score; /* used during stem matching */ + FT_Pos len; /* used during stem matching */ + + AF_Point first; /* first point in edge segment */ + AF_Point last; /* last point in edge segment */ + + } AF_SegmentRec; + + + typedef struct AF_EdgeRec_ + { + FT_Short fpos; /* original, unscaled position (font units) */ + FT_Pos opos; /* original, scaled position */ + FT_Pos pos; /* current position */ + + FT_Byte flags; /* edge flags */ + FT_Char dir; /* edge direction */ + FT_Fixed scale; /* used to speed up interpolation between edges */ + AF_Width blue_edge; /* non-NULL if this is a blue edge */ + + AF_Edge link; /* link edge */ + AF_Edge serif; /* primary edge for serifs */ + FT_Short num_linked; /* number of linked edges */ + FT_Int score; /* used during stem matching */ + + AF_Segment first; /* first segment in edge */ + AF_Segment last; /* last segment in edge */ + + } AF_EdgeRec; + + + typedef struct AF_AxisHintsRec_ + { + FT_Int num_segments; /* number of used segments */ + FT_Int max_segments; /* number of allocated segments */ + AF_Segment segments; /* segments array */ +#ifdef AF_SORT_SEGMENTS + FT_Int mid_segments; +#endif + + FT_Int num_edges; /* number of used edges */ + FT_Int max_edges; /* number of allocated edges */ + AF_Edge edges; /* edges array */ + + AF_Direction major_dir; /* either vertical or horizontal */ + + } AF_AxisHintsRec, *AF_AxisHints; + + + typedef struct AF_GlyphHintsRec_ + { + FT_Memory memory; + + FT_Fixed x_scale; + FT_Pos x_delta; + + FT_Fixed y_scale; + FT_Pos y_delta; + + FT_Int max_points; /* number of allocated points */ + FT_Int num_points; /* number of used points */ + AF_Point points; /* points array */ + + FT_Int max_contours; /* number of allocated contours */ + FT_Int num_contours; /* number of used contours */ + AF_Point* contours; /* contours array */ + + AF_AxisHintsRec axis[AF_DIMENSION_MAX]; + + FT_UInt32 scaler_flags; /* copy of scaler flags */ + FT_UInt32 other_flags; /* free for script-specific */ + /* implementations */ + AF_ScriptMetrics metrics; + + FT_Pos xmin_delta; /* used for warping */ + FT_Pos xmax_delta; + + } AF_GlyphHintsRec; + + +#define AF_HINTS_TEST_SCALER( h, f ) ( (h)->scaler_flags & (f) ) +#define AF_HINTS_TEST_OTHER( h, f ) ( (h)->other_flags & (f) ) + + +#ifdef FT_DEBUG_AUTOFIT + +#define AF_HINTS_DO_HORIZONTAL( h ) \ + ( !_af_debug_disable_horz_hints && \ + !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_HORIZONTAL ) ) + +#define AF_HINTS_DO_VERTICAL( h ) \ + ( !_af_debug_disable_vert_hints && \ + !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_VERTICAL ) ) + +#define AF_HINTS_DO_ADVANCE( h ) \ + !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_ADVANCE ) + +#define AF_HINTS_DO_BLUES( h ) ( !_af_debug_disable_blue_hints ) + +#else /* !FT_DEBUG_AUTOFIT */ + +#define AF_HINTS_DO_HORIZONTAL( h ) \ + !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_HORIZONTAL ) + +#define AF_HINTS_DO_VERTICAL( h ) \ + !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_VERTICAL ) + +#define AF_HINTS_DO_ADVANCE( h ) \ + !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_ADVANCE ) + +#define AF_HINTS_DO_BLUES( h ) 1 + +#endif /* !FT_DEBUG_AUTOFIT */ + + + FT_LOCAL( AF_Direction ) + af_direction_compute( FT_Pos dx, + FT_Pos dy ); + + + FT_LOCAL( FT_Error ) + af_axis_hints_new_segment( AF_AxisHints axis, + FT_Memory memory, + AF_Segment *asegment ); + + FT_LOCAL( FT_Error) + af_axis_hints_new_edge( AF_AxisHints axis, + FT_Int fpos, + AF_Direction dir, + FT_Memory memory, + AF_Edge *edge ); + + FT_LOCAL( void ) + af_glyph_hints_init( AF_GlyphHints hints, + FT_Memory memory ); + + FT_LOCAL( void ) + af_glyph_hints_rescale( AF_GlyphHints hints, + AF_ScriptMetrics metrics ); + + FT_LOCAL( FT_Error ) + af_glyph_hints_reload( AF_GlyphHints hints, + FT_Outline* outline ); + + FT_LOCAL( void ) + af_glyph_hints_save( AF_GlyphHints hints, + FT_Outline* outline ); + + FT_LOCAL( void ) + af_glyph_hints_align_edge_points( AF_GlyphHints hints, + AF_Dimension dim ); + + FT_LOCAL( void ) + af_glyph_hints_align_strong_points( AF_GlyphHints hints, + AF_Dimension dim ); + + FT_LOCAL( void ) + af_glyph_hints_align_weak_points( AF_GlyphHints hints, + AF_Dimension dim ); + +#ifdef AF_CONFIG_OPTION_USE_WARPER + FT_LOCAL( void ) + af_glyph_hints_scale_dim( AF_GlyphHints hints, + AF_Dimension dim, + FT_Fixed scale, + FT_Pos delta ); +#endif + + FT_LOCAL( void ) + af_glyph_hints_done( AF_GlyphHints hints ); + +/* */ + +#define AF_SEGMENT_LEN( seg ) ( (seg)->max_coord - (seg)->min_coord ) + +#define AF_SEGMENT_DIST( seg1, seg2 ) ( ( (seg1)->pos > (seg2)->pos ) \ + ? (seg1)->pos - (seg2)->pos \ + : (seg2)->pos - (seg1)->pos ) + + +FT_END_HEADER + +#endif /* __AFHINTS_H__ */ + + +/* END */ diff --git a/src/autofit/afindic.c b/src/autofit/afindic.c new file mode 100644 index 0000000..9c74838 --- /dev/null +++ b/src/autofit/afindic.c @@ -0,0 +1,155 @@ +/***************************************************************************/ +/* */ +/* afindic.c */ +/* */ +/* Auto-fitter hinting routines for Indic scripts (body). */ +/* */ +/* Copyright 2007, 2011 by */ +/* Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "aftypes.h" +#include "aflatin.h" + + +#ifdef AF_CONFIG_OPTION_INDIC + +#include "afindic.h" +#include "aferrors.h" +#include "afcjk.h" + + +#ifdef AF_CONFIG_OPTION_USE_WARPER +#include "afwarp.h" +#endif + + + static FT_Error + af_indic_metrics_init( AF_CJKMetrics metrics, + FT_Face face ) + { + /* skip blue zone init in CJK routines */ + FT_CharMap oldmap = face->charmap; + + + metrics->units_per_em = face->units_per_EM; + + if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) ) + face->charmap = NULL; + else + { + af_cjk_metrics_init_widths( metrics, face, 0x7530 ); +#if 0 + /* either need indic specific blue_chars[] or just skip blue zones */ + af_cjk_metrics_init_blues( metrics, face, af_cjk_blue_chars ); +#endif + af_cjk_metrics_check_digits( metrics, face ); + } + + FT_Set_Charmap( face, oldmap ); + + return AF_Err_Ok; + } + + + static void + af_indic_metrics_scale( AF_CJKMetrics metrics, + AF_Scaler scaler ) + { + /* use CJK routines */ + af_cjk_metrics_scale( metrics, scaler ); + } + + + static FT_Error + af_indic_hints_init( AF_GlyphHints hints, + AF_CJKMetrics metrics ) + { + /* use CJK routines */ + return af_cjk_hints_init( hints, metrics ); + } + + + static FT_Error + af_indic_hints_apply( AF_GlyphHints hints, + FT_Outline* outline, + AF_CJKMetrics metrics ) + { + /* use CJK routines */ + return af_cjk_hints_apply( hints, outline, metrics ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** I N D I C S C R I P T C L A S S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + static const AF_Script_UniRangeRec af_indic_uniranges[] = + { +#if 0 + AF_UNIRANGE_REC( 0x0100UL, 0xFFFFUL ), /* why this? */ +#endif + AF_UNIRANGE_REC( 0x0900UL, 0x0DFFUL), /* Indic Range */ + AF_UNIRANGE_REC( 0x0F00UL, 0x0FFFUL), /* Tibetan */ + AF_UNIRANGE_REC( 0x1900UL, 0x194FUL), /* Limbu */ + AF_UNIRANGE_REC( 0x1B80UL, 0x1BBFUL), /* Sundanese */ + AF_UNIRANGE_REC( 0x1C80UL, 0x1CDFUL), /* Meetei Mayak */ + AF_UNIRANGE_REC( 0xA800UL, 0xA82FUL), /* Syloti Nagri */ + AF_UNIRANGE_REC( 0x11800UL, 0x118DFUL), /* Sharada */ + AF_UNIRANGE_REC( 0UL, 0UL) + }; + + + AF_DEFINE_SCRIPT_CLASS( af_indic_script_class, + AF_SCRIPT_INDIC, + af_indic_uniranges, + + sizeof ( AF_CJKMetricsRec ), + + (AF_Script_InitMetricsFunc) af_indic_metrics_init, + (AF_Script_ScaleMetricsFunc)af_indic_metrics_scale, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) af_indic_hints_init, + (AF_Script_ApplyHintsFunc) af_indic_hints_apply + ) + +#else /* !AF_CONFIG_OPTION_INDIC */ + + static const AF_Script_UniRangeRec af_indic_uniranges[] = + { + { 0, 0 } + }; + + + AF_DEFINE_SCRIPT_CLASS( af_indic_script_class, + AF_SCRIPT_INDIC, + af_indic_uniranges, + + sizeof ( AF_CJKMetricsRec ), + + (AF_Script_InitMetricsFunc) NULL, + (AF_Script_ScaleMetricsFunc)NULL, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) NULL, + (AF_Script_ApplyHintsFunc) NULL + ) + +#endif /* !AF_CONFIG_OPTION_INDIC */ + + +/* END */ diff --git a/src/autofit/afindic.h b/src/autofit/afindic.h new file mode 100644 index 0000000..662a982 --- /dev/null +++ b/src/autofit/afindic.h @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* afindic.h */ +/* */ +/* Auto-fitter hinting routines for Indic scripts (specification). */ +/* */ +/* Copyright 2007 by */ +/* Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFINDIC_H__ +#define __AFINDIC_H__ + +#include "afhints.h" + + +FT_BEGIN_HEADER + + + /* the Indic-specific script class */ + + AF_DECLARE_SCRIPT_CLASS(af_indic_script_class) + + +/* */ + +FT_END_HEADER + +#endif /* __AFINDIC_H__ */ + + +/* END */ diff --git a/src/autofit/aflatin.c b/src/autofit/aflatin.c new file mode 100644 index 0000000..30145a2 --- /dev/null +++ b/src/autofit/aflatin.c @@ -0,0 +1,2359 @@ +/***************************************************************************/ +/* */ +/* aflatin.c */ +/* */ +/* Auto-fitter hinting routines for latin script (body). */ +/* */ +/* Copyright 2003-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_ADVANCES_H +#include FT_INTERNAL_DEBUG_H + +#include "aflatin.h" +#include "aferrors.h" + + +#ifdef AF_CONFIG_OPTION_USE_WARPER +#include "afwarp.h" +#endif + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_aflatin + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L O B A L M E T R I C S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* Find segments and links, compute all stem widths, and initialize */ + /* standard width and height for the glyph with given charcode. */ + + FT_LOCAL_DEF( void ) + af_latin_metrics_init_widths( AF_LatinMetrics metrics, + FT_Face face, + FT_ULong charcode ) + { + /* scan the array of segments in each direction */ + AF_GlyphHintsRec hints[1]; + + + af_glyph_hints_init( hints, face->memory ); + + metrics->axis[AF_DIMENSION_HORZ].width_count = 0; + metrics->axis[AF_DIMENSION_VERT].width_count = 0; + + { + FT_Error error; + FT_UInt glyph_index; + int dim; + AF_LatinMetricsRec dummy[1]; + AF_Scaler scaler = &dummy->root.scaler; + + + glyph_index = FT_Get_Char_Index( face, charcode ); + if ( glyph_index == 0 ) + goto Exit; + + error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); + if ( error || face->glyph->outline.n_points <= 0 ) + goto Exit; + + FT_ZERO( dummy ); + + dummy->units_per_em = metrics->units_per_em; + + scaler->x_scale = 0x10000L; + scaler->y_scale = 0x10000L; + scaler->x_delta = 0; + scaler->y_delta = 0; + + scaler->face = face; + scaler->render_mode = FT_RENDER_MODE_NORMAL; + scaler->flags = 0; + + af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy ); + + error = af_glyph_hints_reload( hints, &face->glyph->outline ); + if ( error ) + goto Exit; + + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_LatinAxis axis = &metrics->axis[dim]; + AF_AxisHints axhints = &hints->axis[dim]; + AF_Segment seg, limit, link; + FT_UInt num_widths = 0; + + + error = af_latin_hints_compute_segments( hints, + (AF_Dimension)dim ); + if ( error ) + goto Exit; + + af_latin_hints_link_segments( hints, + (AF_Dimension)dim ); + + seg = axhints->segments; + limit = seg + axhints->num_segments; + + for ( ; seg < limit; seg++ ) + { + link = seg->link; + + /* we only consider stem segments there! */ + if ( link && link->link == seg && link > seg ) + { + FT_Pos dist; + + + dist = seg->pos - link->pos; + if ( dist < 0 ) + dist = -dist; + + if ( num_widths < AF_LATIN_MAX_WIDTHS ) + axis->widths[num_widths++].org = dist; + } + } + + af_sort_widths( num_widths, axis->widths ); + axis->width_count = num_widths; + } + + Exit: + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_LatinAxis axis = &metrics->axis[dim]; + FT_Pos stdw; + + + stdw = ( axis->width_count > 0 ) + ? axis->widths[0].org + : AF_LATIN_CONSTANT( metrics, 50 ); + + /* let's try 20% of the smallest width */ + axis->edge_distance_threshold = stdw / 5; + axis->standard_width = stdw; + axis->extra_light = 0; + } + } + + af_glyph_hints_done( hints ); + } + + + +#define AF_LATIN_MAX_TEST_CHARACTERS 12 + + + static const char af_latin_blue_chars[AF_LATIN_MAX_BLUES] + [AF_LATIN_MAX_TEST_CHARACTERS + 1] = + { + "THEZOCQS", + "HEZLOCUS", + "fijkdbh", + "xzroesc", + "xzroesc", + "pqgjy" + }; + + + /* Find all blue zones. Flat segments give the reference points, */ + /* round segments the overshoot positions. */ + + static void + af_latin_metrics_init_blues( AF_LatinMetrics metrics, + FT_Face face ) + { + FT_Pos flats [AF_LATIN_MAX_TEST_CHARACTERS]; + FT_Pos rounds[AF_LATIN_MAX_TEST_CHARACTERS]; + FT_Int num_flats; + FT_Int num_rounds; + FT_Int bb; + AF_LatinBlue blue; + FT_Error error; + AF_LatinAxis axis = &metrics->axis[AF_DIMENSION_VERT]; + FT_GlyphSlot glyph = face->glyph; + + + /* we compute the blues simply by loading each character from the */ + /* `af_latin_blue_chars[blues]' string, then finding its top-most or */ + /* bottom-most points (depending on `AF_IS_TOP_BLUE') */ + + FT_TRACE5(( "blue zones computation\n" )); + FT_TRACE5(( "------------------------------------------------\n" )); + + for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ ) + { + const char* p = af_latin_blue_chars[bb]; + const char* limit = p + AF_LATIN_MAX_TEST_CHARACTERS; + FT_Pos* blue_ref; + FT_Pos* blue_shoot; + + + FT_TRACE5(( "blue %3d: ", bb )); + + num_flats = 0; + num_rounds = 0; + + for ( ; p < limit && *p; p++ ) + { + FT_UInt glyph_index; + FT_Pos best_y; /* same as points.y */ + FT_Int best_point, best_first, best_last; + FT_Vector* points; + FT_Bool round = 0; + + + FT_TRACE5(( "'%c'", *p )); + + /* load the character in the face -- skip unknown or empty ones */ + glyph_index = FT_Get_Char_Index( face, (FT_UInt)*p ); + if ( glyph_index == 0 ) + continue; + + error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); + if ( error || glyph->outline.n_points <= 0 ) + continue; + + /* now compute min or max point indices and coordinates */ + points = glyph->outline.points; + best_point = -1; + best_y = 0; /* make compiler happy */ + best_first = 0; /* ditto */ + best_last = 0; /* ditto */ + + { + FT_Int nn; + FT_Int first = 0; + FT_Int last = -1; + + + for ( nn = 0; + nn < glyph->outline.n_contours; + first = last + 1, nn++ ) + { + FT_Int old_best_point = best_point; + FT_Int pp; + + + last = glyph->outline.contours[nn]; + + /* Avoid single-point contours since they are never rasterized. */ + /* In some fonts, they correspond to mark attachment points */ + /* which are way outside of the glyph's real outline. */ + if ( last <= first ) + continue; + + if ( AF_LATIN_IS_TOP_BLUE( bb ) ) + { + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].y > best_y ) + { + best_point = pp; + best_y = points[pp].y; + } + } + else + { + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].y < best_y ) + { + best_point = pp; + best_y = points[pp].y; + } + } + + if ( best_point != old_best_point ) + { + best_first = first; + best_last = last; + } + } + FT_TRACE5(( "%5d", best_y )); + } + + /* now check whether the point belongs to a straight or round */ + /* segment; we first need to find in which contour the extremum */ + /* lies, then inspect its previous and next points */ + if ( best_point >= 0 ) + { + FT_Int prev, next; + FT_Pos dist; + + + /* now look for the previous and next points that are not on the */ + /* same Y coordinate. Threshold the `closeness'... */ + prev = best_point; + next = prev; + + do + { + if ( prev > best_first ) + prev--; + else + prev = best_last; + + dist = points[prev].y - best_y; + if ( dist < -5 || dist > 5 ) + break; + + } while ( prev != best_point ); + + do + { + if ( next < best_last ) + next++; + else + next = best_first; + + dist = points[next].y - best_y; + if ( dist < -5 || dist > 5 ) + break; + + } while ( next != best_point ); + + /* now set the `round' flag depending on the segment's kind */ + round = FT_BOOL( + FT_CURVE_TAG( glyph->outline.tags[prev] ) != FT_CURVE_TAG_ON || + FT_CURVE_TAG( glyph->outline.tags[next] ) != FT_CURVE_TAG_ON ); + + FT_TRACE5(( "%c ", round ? 'r' : 'f' )); + } + + if ( round ) + rounds[num_rounds++] = best_y; + else + flats[num_flats++] = best_y; + } + + FT_TRACE5(( "\n" )); + + if ( num_flats == 0 && num_rounds == 0 ) + { + /* + * we couldn't find a single glyph to compute this blue zone, + * we will simply ignore it then + */ + FT_TRACE5(( "empty\n" )); + continue; + } + + /* we have computed the contents of the `rounds' and `flats' tables, */ + /* now determine the reference and overshoot position of the blue -- */ + /* we simply take the median value after a simple sort */ + af_sort_pos( num_rounds, rounds ); + af_sort_pos( num_flats, flats ); + + blue = &axis->blues[axis->blue_count]; + blue_ref = &blue->ref.org; + blue_shoot = &blue->shoot.org; + + axis->blue_count++; + + if ( num_flats == 0 ) + { + *blue_ref = + *blue_shoot = rounds[num_rounds / 2]; + } + else if ( num_rounds == 0 ) + { + *blue_ref = + *blue_shoot = flats[num_flats / 2]; + } + else + { + *blue_ref = flats[num_flats / 2]; + *blue_shoot = rounds[num_rounds / 2]; + } + + /* there are sometimes problems: if the overshoot position of top */ + /* zones is under its reference position, or the opposite for bottom */ + /* zones. We must thus check everything there and correct the errors */ + if ( *blue_shoot != *blue_ref ) + { + FT_Pos ref = *blue_ref; + FT_Pos shoot = *blue_shoot; + FT_Bool over_ref = FT_BOOL( shoot > ref ); + + + if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref ) + *blue_ref = + *blue_shoot = ( shoot + ref ) / 2; + } + + blue->flags = 0; + if ( AF_LATIN_IS_TOP_BLUE( bb ) ) + blue->flags |= AF_LATIN_BLUE_TOP; + + /* + * The following flag is used later to adjust the y and x scales + * in order to optimize the pixel grid alignment of the top of small + * letters. + */ + if ( bb == AF_LATIN_BLUE_SMALL_TOP ) + blue->flags |= AF_LATIN_BLUE_ADJUSTMENT; + + FT_TRACE5(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot )); + } + + FT_TRACE5(( "\n" )); + + return; + } + + + /* Check whether all ASCII digits have the same advance width. */ + + FT_LOCAL_DEF( void ) + af_latin_metrics_check_digits( AF_LatinMetrics metrics, + FT_Face face ) + { + FT_UInt i; + FT_Bool started = 0, same_width = 1; + FT_Fixed advance, old_advance = 0; + + + /* digit `0' is 0x30 in all supported charmaps */ + for ( i = 0x30; i <= 0x39; i++ ) + { + FT_UInt glyph_index; + + + glyph_index = FT_Get_Char_Index( face, i ); + if ( glyph_index == 0 ) + continue; + + if ( FT_Get_Advance( face, glyph_index, + FT_LOAD_NO_SCALE | + FT_LOAD_NO_HINTING | + FT_LOAD_IGNORE_TRANSFORM, + &advance ) ) + continue; + + if ( started ) + { + if ( advance != old_advance ) + { + same_width = 0; + break; + } + } + else + { + old_advance = advance; + started = 1; + } + } + + metrics->root.digits_have_same_width = same_width; + } + + + /* Initialize global metrics. */ + + FT_LOCAL_DEF( FT_Error ) + af_latin_metrics_init( AF_LatinMetrics metrics, + FT_Face face ) + { + FT_Error error = AF_Err_Ok; + FT_CharMap oldmap = face->charmap; + FT_UInt ee; + + static const FT_Encoding latin_encodings[] = + { + FT_ENCODING_UNICODE, + FT_ENCODING_APPLE_ROMAN, + FT_ENCODING_ADOBE_STANDARD, + FT_ENCODING_ADOBE_LATIN_1, + + FT_ENCODING_NONE /* end of list */ + }; + + + metrics->units_per_em = face->units_per_EM; + + /* do we have a latin charmap in there? */ + for ( ee = 0; latin_encodings[ee] != FT_ENCODING_NONE; ee++ ) + { + error = FT_Select_Charmap( face, latin_encodings[ee] ); + if ( !error ) + break; + } + + if ( !error ) + { + /* For now, compute the standard width and height from the `o'. */ + af_latin_metrics_init_widths( metrics, face, 'o' ); + af_latin_metrics_init_blues( metrics, face ); + af_latin_metrics_check_digits( metrics, face ); + } + + FT_Set_Charmap( face, oldmap ); + return AF_Err_Ok; + } + + + /* Adjust scaling value, then scale and shift widths */ + /* and blue zones (if applicable) for given dimension. */ + + static void + af_latin_metrics_scale_dim( AF_LatinMetrics metrics, + AF_Scaler scaler, + AF_Dimension dim ) + { + FT_Fixed scale; + FT_Pos delta; + AF_LatinAxis axis; + FT_UInt nn; + + + if ( dim == AF_DIMENSION_HORZ ) + { + scale = scaler->x_scale; + delta = scaler->x_delta; + } + else + { + scale = scaler->y_scale; + delta = scaler->y_delta; + } + + axis = &metrics->axis[dim]; + + if ( axis->org_scale == scale && axis->org_delta == delta ) + return; + + axis->org_scale = scale; + axis->org_delta = delta; + + /* + * correct X and Y scale to optimize the alignment of the top of small + * letters to the pixel grid + */ + { + AF_LatinAxis Axis = &metrics->axis[AF_DIMENSION_VERT]; + AF_LatinBlue blue = NULL; + + + for ( nn = 0; nn < Axis->blue_count; nn++ ) + { + if ( Axis->blues[nn].flags & AF_LATIN_BLUE_ADJUSTMENT ) + { + blue = &Axis->blues[nn]; + break; + } + } + + if ( blue ) + { + FT_Pos scaled = FT_MulFix( blue->shoot.org, scaler->y_scale ); + FT_Pos fitted = ( scaled + 40 ) & ~63; + + + if ( scaled != fitted ) + { +#if 0 + if ( dim == AF_DIMENSION_HORZ ) + { + if ( fitted < scaled ) + scale -= scale / 50; /* scale *= 0.98 */ + } + else +#endif + if ( dim == AF_DIMENSION_VERT ) + scale = FT_MulDiv( scale, fitted, scaled ); + } + } + } + + axis->scale = scale; + axis->delta = delta; + + if ( dim == AF_DIMENSION_HORZ ) + { + metrics->root.scaler.x_scale = scale; + metrics->root.scaler.x_delta = delta; + } + else + { + metrics->root.scaler.y_scale = scale; + metrics->root.scaler.y_delta = delta; + } + + /* scale the widths */ + for ( nn = 0; nn < axis->width_count; nn++ ) + { + AF_Width width = axis->widths + nn; + + + width->cur = FT_MulFix( width->org, scale ); + width->fit = width->cur; + } + + /* an extra-light axis corresponds to a standard width that is */ + /* smaller than 5/8 pixels */ + axis->extra_light = + (FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 ); + + if ( dim == AF_DIMENSION_VERT ) + { + /* scale the blue zones */ + for ( nn = 0; nn < axis->blue_count; nn++ ) + { + AF_LatinBlue blue = &axis->blues[nn]; + FT_Pos dist; + + + blue->ref.cur = FT_MulFix( blue->ref.org, scale ) + delta; + blue->ref.fit = blue->ref.cur; + blue->shoot.cur = FT_MulFix( blue->shoot.org, scale ) + delta; + blue->shoot.fit = blue->shoot.cur; + blue->flags &= ~AF_LATIN_BLUE_ACTIVE; + + /* a blue zone is only active if it is less than 3/4 pixels tall */ + dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale ); + if ( dist <= 48 && dist >= -48 ) + { +#if 0 + FT_Pos delta1; +#endif + FT_Pos delta2; + + + /* use discrete values for blue zone widths */ + +#if 0 + + /* generic, original code */ + delta1 = blue->shoot.org - blue->ref.org; + delta2 = delta1; + if ( delta1 < 0 ) + delta2 = -delta2; + + delta2 = FT_MulFix( delta2, scale ); + + if ( delta2 < 32 ) + delta2 = 0; + else if ( delta2 < 64 ) + delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 ); + else + delta2 = FT_PIX_ROUND( delta2 ); + + if ( delta1 < 0 ) + delta2 = -delta2; + + blue->ref.fit = FT_PIX_ROUND( blue->ref.cur ); + blue->shoot.fit = blue->ref.fit + delta2; + +#else + + /* simplified version due to abs(dist) <= 48 */ + delta2 = dist; + if ( dist < 0 ) + delta2 = -delta2; + + if ( delta2 < 32 ) + delta2 = 0; + else if ( delta < 48 ) + delta2 = 32; + else + delta2 = 64; + + if ( dist < 0 ) + delta2 = -delta2; + + blue->ref.fit = FT_PIX_ROUND( blue->ref.cur ); + blue->shoot.fit = blue->ref.fit - delta2; + +#endif + + blue->flags |= AF_LATIN_BLUE_ACTIVE; + } + } + } + } + + + /* Scale global values in both directions. */ + + FT_LOCAL_DEF( void ) + af_latin_metrics_scale( AF_LatinMetrics metrics, + AF_Scaler scaler ) + { + metrics->root.scaler.render_mode = scaler->render_mode; + metrics->root.scaler.face = scaler->face; + + af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ ); + af_latin_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L Y P H A N A L Y S I S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* Walk over all contours and compute its segments. */ + + FT_LOCAL_DEF( FT_Error ) + af_latin_hints_compute_segments( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + FT_Memory memory = hints->memory; + FT_Error error = AF_Err_Ok; + AF_Segment segment = NULL; + AF_SegmentRec seg0; + AF_Point* contour = hints->contours; + AF_Point* contour_limit = contour + hints->num_contours; + AF_Direction major_dir, segment_dir; + + + FT_ZERO( &seg0 ); + seg0.score = 32000; + seg0.flags = AF_EDGE_NORMAL; + + major_dir = (AF_Direction)FT_ABS( axis->major_dir ); + segment_dir = major_dir; + + axis->num_segments = 0; + + /* set up (u,v) in each point */ + if ( dim == AF_DIMENSION_HORZ ) + { + AF_Point point = hints->points; + AF_Point limit = point + hints->num_points; + + + for ( ; point < limit; point++ ) + { + point->u = point->fx; + point->v = point->fy; + } + } + else + { + AF_Point point = hints->points; + AF_Point limit = point + hints->num_points; + + + for ( ; point < limit; point++ ) + { + point->u = point->fy; + point->v = point->fx; + } + } + + /* do each contour separately */ + for ( ; contour < contour_limit; contour++ ) + { + AF_Point point = contour[0]; + AF_Point last = point->prev; + int on_edge = 0; + FT_Pos min_pos = 32000; /* minimum segment pos != min_coord */ + FT_Pos max_pos = -32000; /* maximum segment pos != max_coord */ + FT_Bool passed; + + + if ( point == last ) /* skip singletons -- just in case */ + continue; + + if ( FT_ABS( last->out_dir ) == major_dir && + FT_ABS( point->out_dir ) == major_dir ) + { + /* we are already on an edge, try to locate its start */ + last = point; + + for (;;) + { + point = point->prev; + if ( FT_ABS( point->out_dir ) != major_dir ) + { + point = point->next; + break; + } + if ( point == last ) + break; + } + } + + last = point; + passed = 0; + + for (;;) + { + FT_Pos u, v; + + + if ( on_edge ) + { + u = point->u; + if ( u < min_pos ) + min_pos = u; + if ( u > max_pos ) + max_pos = u; + + if ( point->out_dir != segment_dir || point == last ) + { + /* we are just leaving an edge; record a new segment! */ + segment->last = point; + segment->pos = (FT_Short)( ( min_pos + max_pos ) >> 1 ); + + /* a segment is round if either its first or last point */ + /* is a control point */ + if ( ( segment->first->flags | point->flags ) & + AF_FLAG_CONTROL ) + segment->flags |= AF_EDGE_ROUND; + + /* compute segment size */ + min_pos = max_pos = point->v; + + v = segment->first->v; + if ( v < min_pos ) + min_pos = v; + if ( v > max_pos ) + max_pos = v; + + segment->min_coord = (FT_Short)min_pos; + segment->max_coord = (FT_Short)max_pos; + segment->height = (FT_Short)( segment->max_coord - + segment->min_coord ); + + on_edge = 0; + segment = NULL; + /* fallthrough */ + } + } + + /* now exit if we are at the start/end point */ + if ( point == last ) + { + if ( passed ) + break; + passed = 1; + } + + if ( !on_edge && FT_ABS( point->out_dir ) == major_dir ) + { + /* this is the start of a new segment! */ + segment_dir = (AF_Direction)point->out_dir; + + /* clear all segment fields */ + error = af_axis_hints_new_segment( axis, memory, &segment ); + if ( error ) + goto Exit; + + segment[0] = seg0; + segment->dir = (FT_Char)segment_dir; + min_pos = max_pos = point->u; + segment->first = point; + segment->last = point; + on_edge = 1; + } + + point = point->next; + } + + } /* contours */ + + + /* now slightly increase the height of segments when this makes */ + /* sense -- this is used to better detect and ignore serifs */ + { + AF_Segment segments = axis->segments; + AF_Segment segments_end = segments + axis->num_segments; + + + for ( segment = segments; segment < segments_end; segment++ ) + { + AF_Point first = segment->first; + AF_Point last = segment->last; + FT_Pos first_v = first->v; + FT_Pos last_v = last->v; + + + if ( first == last ) + continue; + + if ( first_v < last_v ) + { + AF_Point p; + + + p = first->prev; + if ( p->v < first_v ) + segment->height = (FT_Short)( segment->height + + ( ( first_v - p->v ) >> 1 ) ); + + p = last->next; + if ( p->v > last_v ) + segment->height = (FT_Short)( segment->height + + ( ( p->v - last_v ) >> 1 ) ); + } + else + { + AF_Point p; + + + p = first->prev; + if ( p->v > first_v ) + segment->height = (FT_Short)( segment->height + + ( ( p->v - first_v ) >> 1 ) ); + + p = last->next; + if ( p->v < last_v ) + segment->height = (FT_Short)( segment->height + + ( ( last_v - p->v ) >> 1 ) ); + } + } + } + + Exit: + return error; + } + + + /* Link segments to form stems and serifs. */ + + FT_LOCAL_DEF( void ) + af_latin_hints_link_segments( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + FT_Pos len_threshold, len_score; + AF_Segment seg1, seg2; + + + len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 ); + if ( len_threshold == 0 ) + len_threshold = 1; + + len_score = AF_LATIN_CONSTANT( hints->metrics, 6000 ); + + /* now compare each segment to the others */ + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + /* the fake segments are introduced to hint the metrics -- */ + /* we must never link them to anything */ + if ( seg1->dir != axis->major_dir || seg1->first == seg1->last ) + continue; + + /* search for stems having opposite directions, */ + /* with seg1 to the `left' of seg2 */ + for ( seg2 = segments; seg2 < segment_limit; seg2++ ) + { + FT_Pos pos1 = seg1->pos; + FT_Pos pos2 = seg2->pos; + + + if ( seg1->dir + seg2->dir == 0 && pos2 > pos1 ) + { + /* compute distance between the two segments */ + FT_Pos dist = pos2 - pos1; + FT_Pos min = seg1->min_coord; + FT_Pos max = seg1->max_coord; + FT_Pos len, score; + + + if ( min < seg2->min_coord ) + min = seg2->min_coord; + + if ( max > seg2->max_coord ) + max = seg2->max_coord; + + /* compute maximum coordinate difference of the two segments */ + len = max - min; + if ( len >= len_threshold ) + { + /* small coordinate differences cause a higher score, and */ + /* segments with a greater distance cause a higher score also */ + score = dist + len_score / len; + + /* and we search for the smallest score */ + /* of the sum of the two values */ + if ( score < seg1->score ) + { + seg1->score = score; + seg1->link = seg2; + } + + if ( score < seg2->score ) + { + seg2->score = score; + seg2->link = seg1; + } + } + } + } + } + + /* now compute the `serif' segments, cf. explanations in `afhints.h' */ + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + seg2 = seg1->link; + + if ( seg2 ) + { + if ( seg2->link != seg1 ) + { + seg1->link = 0; + seg1->serif = seg2->link; + } + } + } + } + + + /* Link segments to edges, using feature analysis for selection. */ + + FT_LOCAL_DEF( FT_Error ) + af_latin_hints_compute_edges( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + FT_Error error = AF_Err_Ok; + FT_Memory memory = hints->memory; + AF_LatinAxis laxis = &((AF_LatinMetrics)hints->metrics)->axis[dim]; + + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + AF_Segment seg; + +#if 0 + AF_Direction up_dir; +#endif + FT_Fixed scale; + FT_Pos edge_distance_threshold; + FT_Pos segment_length_threshold; + + + axis->num_edges = 0; + + scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale + : hints->y_scale; + +#if 0 + up_dir = ( dim == AF_DIMENSION_HORZ ) ? AF_DIR_UP + : AF_DIR_RIGHT; +#endif + + /* + * We ignore all segments that are less than 1 pixel in length + * to avoid many problems with serif fonts. We compute the + * corresponding threshold in font units. + */ + if ( dim == AF_DIMENSION_HORZ ) + segment_length_threshold = FT_DivFix( 64, hints->y_scale ); + else + segment_length_threshold = 0; + + /*********************************************************************/ + /* */ + /* We begin by generating a sorted table of edges for the current */ + /* direction. To do so, we simply scan each segment and try to find */ + /* an edge in our table that corresponds to its position. */ + /* */ + /* If no edge is found, we create and insert a new edge in the */ + /* sorted table. Otherwise, we simply add the segment to the edge's */ + /* list which gets processed in the second step to compute the */ + /* edge's properties. */ + /* */ + /* Note that the table of edges is sorted along the segment/edge */ + /* position. */ + /* */ + /*********************************************************************/ + + /* assure that edge distance threshold is at most 0.25px */ + edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold, + scale ); + if ( edge_distance_threshold > 64 / 4 ) + edge_distance_threshold = 64 / 4; + + edge_distance_threshold = FT_DivFix( edge_distance_threshold, + scale ); + + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Edge found = NULL; + FT_Int ee; + + + if ( seg->height < segment_length_threshold ) + continue; + + /* A special case for serif edges: If they are smaller than */ + /* 1.5 pixels we ignore them. */ + if ( seg->serif && + 2 * seg->height < 3 * segment_length_threshold ) + continue; + + /* look for an edge corresponding to the segment */ + for ( ee = 0; ee < axis->num_edges; ee++ ) + { + AF_Edge edge = axis->edges + ee; + FT_Pos dist; + + + dist = seg->pos - edge->fpos; + if ( dist < 0 ) + dist = -dist; + + if ( dist < edge_distance_threshold && edge->dir == seg->dir ) + { + found = edge; + break; + } + } + + if ( !found ) + { + AF_Edge edge; + + + /* insert a new edge in the list and */ + /* sort according to the position */ + error = af_axis_hints_new_edge( axis, seg->pos, + (AF_Direction)seg->dir, + memory, &edge ); + if ( error ) + goto Exit; + + /* add the segment to the new edge's list */ + FT_ZERO( edge ); + + edge->first = seg; + edge->last = seg; + edge->dir = seg->dir; + edge->fpos = seg->pos; + edge->opos = FT_MulFix( seg->pos, scale ); + edge->pos = edge->opos; + seg->edge_next = seg; + } + else + { + /* if an edge was found, simply add the segment to the edge's */ + /* list */ + seg->edge_next = found->first; + found->last->edge_next = seg; + found->last = seg; + } + } + + + /*********************************************************************/ + /* */ + /* Good, we will now compute each edge's properties according to */ + /* the segments found on its position. Basically, these are */ + /* */ + /* - the edge's main direction */ + /* - stem edge, serif edge or both (which defaults to stem then) */ + /* - rounded edge, straight or both (which defaults to straight) */ + /* - link for edge */ + /* */ + /*********************************************************************/ + + /* first of all, set the `edge' field in each segment -- this is */ + /* required in order to compute edge links */ + + /* + * Note that removing this loop and setting the `edge' field of each + * segment directly in the code above slows down execution speed for + * some reasons on platforms like the Sun. + */ + { + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + AF_Edge edge; + + + for ( edge = edges; edge < edge_limit; edge++ ) + { + seg = edge->first; + if ( seg ) + do + { + seg->edge = edge; + seg = seg->edge_next; + + } while ( seg != edge->first ); + } + + /* now compute each edge properties */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + FT_Int is_round = 0; /* does it contain round segments? */ + FT_Int is_straight = 0; /* does it contain straight segments? */ +#if 0 + FT_Pos ups = 0; /* number of upwards segments */ + FT_Pos downs = 0; /* number of downwards segments */ +#endif + + + seg = edge->first; + + do + { + FT_Bool is_serif; + + + /* check for roundness of segment */ + if ( seg->flags & AF_EDGE_ROUND ) + is_round++; + else + is_straight++; + +#if 0 + /* check for segment direction */ + if ( seg->dir == up_dir ) + ups += seg->max_coord - seg->min_coord; + else + downs += seg->max_coord - seg->min_coord; +#endif + + /* check for links -- if seg->serif is set, then seg->link must */ + /* be ignored */ + is_serif = (FT_Bool)( seg->serif && + seg->serif->edge && + seg->serif->edge != edge ); + + if ( ( seg->link && seg->link->edge != NULL ) || is_serif ) + { + AF_Edge edge2; + AF_Segment seg2; + + + edge2 = edge->link; + seg2 = seg->link; + + if ( is_serif ) + { + seg2 = seg->serif; + edge2 = edge->serif; + } + + if ( edge2 ) + { + FT_Pos edge_delta; + FT_Pos seg_delta; + + + edge_delta = edge->fpos - edge2->fpos; + if ( edge_delta < 0 ) + edge_delta = -edge_delta; + + seg_delta = seg->pos - seg2->pos; + if ( seg_delta < 0 ) + seg_delta = -seg_delta; + + if ( seg_delta < edge_delta ) + edge2 = seg2->edge; + } + else + edge2 = seg2->edge; + + if ( is_serif ) + { + edge->serif = edge2; + edge2->flags |= AF_EDGE_SERIF; + } + else + edge->link = edge2; + } + + seg = seg->edge_next; + + } while ( seg != edge->first ); + + /* set the round/straight flags */ + edge->flags = AF_EDGE_NORMAL; + + if ( is_round > 0 && is_round >= is_straight ) + edge->flags |= AF_EDGE_ROUND; + +#if 0 + /* set the edge's main direction */ + edge->dir = AF_DIR_NONE; + + if ( ups > downs ) + edge->dir = (FT_Char)up_dir; + + else if ( ups < downs ) + edge->dir = (FT_Char)-up_dir; + + else if ( ups == downs ) + edge->dir = 0; /* both up and down! */ +#endif + + /* get rid of serifs if link is set */ + /* XXX: This gets rid of many unpleasant artefacts! */ + /* Example: the `c' in cour.pfa at size 13 */ + + if ( edge->serif && edge->link ) + edge->serif = 0; + } + } + + Exit: + return error; + } + + + /* Detect segments and edges for given dimension. */ + + FT_LOCAL_DEF( FT_Error ) + af_latin_hints_detect_features( AF_GlyphHints hints, + AF_Dimension dim ) + { + FT_Error error; + + + error = af_latin_hints_compute_segments( hints, dim ); + if ( !error ) + { + af_latin_hints_link_segments( hints, dim ); + + error = af_latin_hints_compute_edges( hints, dim ); + } + + return error; + } + + + /* Compute all edges which lie within blue zones. */ + + FT_LOCAL_DEF( void ) + af_latin_hints_compute_blue_edges( AF_GlyphHints hints, + AF_LatinMetrics metrics ) + { + AF_AxisHints axis = &hints->axis[AF_DIMENSION_VERT]; + AF_Edge edge = axis->edges; + AF_Edge edge_limit = edge + axis->num_edges; + AF_LatinAxis latin = &metrics->axis[AF_DIMENSION_VERT]; + FT_Fixed scale = latin->scale; + + + /* compute which blue zones are active, i.e. have their scaled */ + /* size < 3/4 pixels */ + + /* for each horizontal edge search the blue zone which is closest */ + for ( ; edge < edge_limit; edge++ ) + { + FT_Int bb; + AF_Width best_blue = NULL; + FT_Pos best_dist; /* initial threshold */ + + + /* compute the initial threshold as a fraction of the EM size */ + /* (the value 40 is heuristic) */ + best_dist = FT_MulFix( metrics->units_per_em / 40, scale ); + + /* assure a minimum distance of 0.5px */ + if ( best_dist > 64 / 2 ) + best_dist = 64 / 2; + + for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ ) + { + AF_LatinBlue blue = latin->blues + bb; + FT_Bool is_top_blue, is_major_dir; + + + /* skip inactive blue zones (i.e., those that are too large) */ + if ( !( blue->flags & AF_LATIN_BLUE_ACTIVE ) ) + continue; + + /* if it is a top zone, check for right edges -- if it is a bottom */ + /* zone, check for left edges */ + /* */ + /* of course, that's for TrueType */ + is_top_blue = (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_TOP ) != 0 ); + is_major_dir = FT_BOOL( edge->dir == axis->major_dir ); + + /* if it is a top zone, the edge must be against the major */ + /* direction; if it is a bottom zone, it must be in the major */ + /* direction */ + if ( is_top_blue ^ is_major_dir ) + { + FT_Pos dist; + + + /* first of all, compare it to the reference position */ + dist = edge->fpos - blue->ref.org; + if ( dist < 0 ) + dist = -dist; + + dist = FT_MulFix( dist, scale ); + if ( dist < best_dist ) + { + best_dist = dist; + best_blue = &blue->ref; + } + + /* now compare it to the overshoot position and check whether */ + /* the edge is rounded, and whether the edge is over the */ + /* reference position of a top zone, or under the reference */ + /* position of a bottom zone */ + if ( edge->flags & AF_EDGE_ROUND && dist != 0 ) + { + FT_Bool is_under_ref = FT_BOOL( edge->fpos < blue->ref.org ); + + + if ( is_top_blue ^ is_under_ref ) + { + dist = edge->fpos - blue->shoot.org; + if ( dist < 0 ) + dist = -dist; + + dist = FT_MulFix( dist, scale ); + if ( dist < best_dist ) + { + best_dist = dist; + best_blue = &blue->shoot; + } + } + } + } + } + + if ( best_blue ) + edge->blue_edge = best_blue; + } + } + + + /* Initalize hinting engine. */ + + static FT_Error + af_latin_hints_init( AF_GlyphHints hints, + AF_LatinMetrics metrics ) + { + FT_Render_Mode mode; + FT_UInt32 scaler_flags, other_flags; + FT_Face face = metrics->root.scaler.face; + + + af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics ); + + /* + * correct x_scale and y_scale if needed, since they may have + * been modified by `af_latin_metrics_scale_dim' above + */ + hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale; + hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta; + hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale; + hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta; + + /* compute flags depending on render mode, etc. */ + mode = metrics->root.scaler.render_mode; + +#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */ + if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V ) + { + metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL; + } +#endif + + scaler_flags = hints->scaler_flags; + other_flags = 0; + + /* + * We snap the width of vertical stems for the monochrome and + * horizontal LCD rendering targets only. + */ + if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD ) + other_flags |= AF_LATIN_HINTS_HORZ_SNAP; + + /* + * We snap the width of horizontal stems for the monochrome and + * vertical LCD rendering targets only. + */ + if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V ) + other_flags |= AF_LATIN_HINTS_VERT_SNAP; + + /* + * We adjust stems to full pixels only if we don't use the `light' mode. + */ + if ( mode != FT_RENDER_MODE_LIGHT ) + other_flags |= AF_LATIN_HINTS_STEM_ADJUST; + + if ( mode == FT_RENDER_MODE_MONO ) + other_flags |= AF_LATIN_HINTS_MONO; + + /* + * In `light' hinting mode we disable horizontal hinting completely. + * We also do it if the face is italic. + */ + if ( mode == FT_RENDER_MODE_LIGHT || + ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0 ) + scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL; + + hints->scaler_flags = scaler_flags; + hints->other_flags = other_flags; + + return AF_Err_Ok; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L Y P H G R I D - F I T T I N G *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* Snap a given width in scaled coordinates to one of the */ + /* current standard widths. */ + + static FT_Pos + af_latin_snap_width( AF_Width widths, + FT_Int count, + FT_Pos width ) + { + int n; + FT_Pos best = 64 + 32 + 2; + FT_Pos reference = width; + FT_Pos scaled; + + + for ( n = 0; n < count; n++ ) + { + FT_Pos w; + FT_Pos dist; + + + w = widths[n].cur; + dist = width - w; + if ( dist < 0 ) + dist = -dist; + if ( dist < best ) + { + best = dist; + reference = w; + } + } + + scaled = FT_PIX_ROUND( reference ); + + if ( width >= reference ) + { + if ( width < scaled + 48 ) + width = reference; + } + else + { + if ( width > scaled - 48 ) + width = reference; + } + + return width; + } + + + /* Compute the snapped width of a given stem, ignoring very thin ones. */ + /* There is a lot of voodoo in this function; changing the hard-coded */ + /* parameters influence the whole hinting process. */ + + static FT_Pos + af_latin_compute_stem_width( AF_GlyphHints hints, + AF_Dimension dim, + FT_Pos width, + AF_Edge_Flags base_flags, + AF_Edge_Flags stem_flags ) + { + AF_LatinMetrics metrics = (AF_LatinMetrics) hints->metrics; + AF_LatinAxis axis = & metrics->axis[dim]; + FT_Pos dist = width; + FT_Int sign = 0; + FT_Int vertical = ( dim == AF_DIMENSION_VERT ); + + + if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) || + axis->extra_light ) + return width; + + if ( dist < 0 ) + { + dist = -width; + sign = 1; + } + + if ( ( vertical && !AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) || + ( !vertical && !AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) ) + { + /* smooth hinting process: very lightly quantize the stem width */ + + /* leave the widths of serifs alone */ + if ( ( stem_flags & AF_EDGE_SERIF ) && + vertical && + ( dist < 3 * 64 ) ) + goto Done_Width; + + else if ( base_flags & AF_EDGE_ROUND ) + { + if ( dist < 80 ) + dist = 64; + } + else if ( dist < 56 ) + dist = 56; + + if ( axis->width_count > 0 ) + { + FT_Pos delta; + + + /* compare to standard width */ + delta = dist - axis->widths[0].cur; + + if ( delta < 0 ) + delta = -delta; + + if ( delta < 40 ) + { + dist = axis->widths[0].cur; + if ( dist < 48 ) + dist = 48; + + goto Done_Width; + } + + if ( dist < 3 * 64 ) + { + delta = dist & 63; + dist &= -64; + + if ( delta < 10 ) + dist += delta; + + else if ( delta < 32 ) + dist += 10; + + else if ( delta < 54 ) + dist += 54; + + else + dist += delta; + } + else + dist = ( dist + 32 ) & ~63; + } + } + else + { + /* strong hinting process: snap the stem width to integer pixels */ + + FT_Pos org_dist = dist; + + + dist = af_latin_snap_width( axis->widths, axis->width_count, dist ); + + if ( vertical ) + { + /* in the case of vertical hinting, always round */ + /* the stem heights to integer pixels */ + + if ( dist >= 64 ) + dist = ( dist + 16 ) & ~63; + else + dist = 64; + } + else + { + if ( AF_LATIN_HINTS_DO_MONO( hints ) ) + { + /* monochrome horizontal hinting: snap widths to integer pixels */ + /* with a different threshold */ + + if ( dist < 64 ) + dist = 64; + else + dist = ( dist + 32 ) & ~63; + } + else + { + /* for horizontal anti-aliased hinting, we adopt a more subtle */ + /* approach: we strengthen small stems, round stems whose size */ + /* is between 1 and 2 pixels to an integer, otherwise nothing */ + + if ( dist < 48 ) + dist = ( dist + 64 ) >> 1; + + else if ( dist < 128 ) + { + /* We only round to an integer width if the corresponding */ + /* distortion is less than 1/4 pixel. Otherwise this */ + /* makes everything worse since the diagonals, which are */ + /* not hinted, appear a lot bolder or thinner than the */ + /* vertical stems. */ + + FT_Pos delta; + + + dist = ( dist + 22 ) & ~63; + delta = dist - org_dist; + if ( delta < 0 ) + delta = -delta; + + if (delta >= 16) + { + dist = org_dist; + if ( dist < 48 ) + dist = ( dist + 64 ) >> 1; + } + } + else + /* round otherwise to prevent color fringes in LCD mode */ + dist = ( dist + 32 ) & ~63; + } + } + } + + Done_Width: + if ( sign ) + dist = -dist; + + return dist; + } + + + /* Align one stem edge relative to the previous stem edge. */ + + static void + af_latin_align_linked_edge( AF_GlyphHints hints, + AF_Dimension dim, + AF_Edge base_edge, + AF_Edge stem_edge ) + { + FT_Pos dist = stem_edge->opos - base_edge->opos; + + FT_Pos fitted_width = af_latin_compute_stem_width( + hints, dim, dist, + (AF_Edge_Flags)base_edge->flags, + (AF_Edge_Flags)stem_edge->flags ); + + + stem_edge->pos = base_edge->pos + fitted_width; + + FT_TRACE5(( " LINK: edge %d (opos=%.2f) linked to (%.2f)," + " dist was %.2f, now %.2f\n", + stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0, + stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 )); + } + + + /* Shift the coordinates of the `serif' edge by the same amount */ + /* as the corresponding `base' edge has been moved already. */ + + static void + af_latin_align_serif_edge( AF_GlyphHints hints, + AF_Edge base, + AF_Edge serif ) + { + FT_UNUSED( hints ); + + serif->pos = base->pos + ( serif->opos - base->opos ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** E D G E H I N T I N G ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* The main grid-fitting routine. */ + + FT_LOCAL_DEF( void ) + af_latin_hint_edges( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + FT_PtrDist n_edges; + AF_Edge edge; + AF_Edge anchor = NULL; + FT_Int has_serifs = 0; + + + FT_TRACE5(("%s edge hinting\n", dim == AF_DIMENSION_VERT ? "horizontal" + : "vertical")); + + /* we begin by aligning all stems relative to the blue zone */ + /* if needed -- that's only for horizontal edges */ + + if ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_BLUES( hints ) ) + { + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Width blue; + AF_Edge edge1, edge2; /* these edges form the stem to check */ + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + blue = edge->blue_edge; + edge1 = NULL; + edge2 = edge->link; + + if ( blue ) + edge1 = edge; + + /* flip edges if the other stem is aligned to a blue zone */ + else if ( edge2 && edge2->blue_edge ) + { + blue = edge2->blue_edge; + edge1 = edge2; + edge2 = edge; + } + + if ( !edge1 ) + continue; + + FT_TRACE5(( " BLUE: edge %d (opos=%.2f) snapped to (%.2f)," + " was (%.2f)\n", + edge1 - edges, edge1->opos / 64.0, blue->fit / 64.0, + edge1->pos / 64.0 )); + + edge1->pos = blue->fit; + edge1->flags |= AF_EDGE_DONE; + + if ( edge2 && !edge2->blue_edge ) + { + af_latin_align_linked_edge( hints, dim, edge1, edge2 ); + edge2->flags |= AF_EDGE_DONE; + } + + if ( !anchor ) + anchor = edge; + } + } + + /* now we align all other stem edges, trying to maintain the */ + /* relative order of stems in the glyph */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Edge edge2; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + /* skip all non-stem edges */ + edge2 = edge->link; + if ( !edge2 ) + { + has_serifs++; + continue; + } + + /* now align the stem */ + + /* this should not happen, but it's better to be safe */ + if ( edge2->blue_edge ) + { + FT_TRACE5(( " ASSERTION FAILED for edge %d\n", edge2-edges )); + + af_latin_align_linked_edge( hints, dim, edge2, edge ); + edge->flags |= AF_EDGE_DONE; + continue; + } + + if ( !anchor ) + { + /* if we reach this if clause, no stem has been aligned yet */ + + FT_Pos org_len, org_center, cur_len; + FT_Pos cur_pos1, error1, error2, u_off, d_off; + + + org_len = edge2->opos - edge->opos; + cur_len = af_latin_compute_stem_width( + hints, dim, org_len, + (AF_Edge_Flags)edge->flags, + (AF_Edge_Flags)edge2->flags ); + + /* some voodoo to specially round edges for small stem widths; */ + /* the idea is to align the center of a stem, then shifting */ + /* the stem edges to suitable positions */ + if ( cur_len <= 64 ) + { + /* width <= 1px */ + u_off = 32; + d_off = 32; + } + else + { + /* 1px < width < 1.5px */ + u_off = 38; + d_off = 26; + } + + if ( cur_len < 96 ) + { + org_center = edge->opos + ( org_len >> 1 ); + cur_pos1 = FT_PIX_ROUND( org_center ); + + error1 = org_center - ( cur_pos1 - u_off ); + if ( error1 < 0 ) + error1 = -error1; + + error2 = org_center - ( cur_pos1 + d_off ); + if ( error2 < 0 ) + error2 = -error2; + + if ( error1 < error2 ) + cur_pos1 -= u_off; + else + cur_pos1 += d_off; + + edge->pos = cur_pos1 - cur_len / 2; + edge2->pos = edge->pos + cur_len; + } + else + edge->pos = FT_PIX_ROUND( edge->opos ); + + FT_TRACE5(( " ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)" + " snapped to (%.2f) (%.2f)\n", + edge - edges, edge->opos / 64.0, + edge2 - edges, edge2->opos / 64.0, + edge->pos / 64.0, edge2->pos / 64.0 )); + anchor = edge; + + edge->flags |= AF_EDGE_DONE; + + af_latin_align_linked_edge( hints, dim, edge, edge2 ); + } + else + { + FT_Pos org_pos, org_len, org_center, cur_len; + FT_Pos cur_pos1, cur_pos2, delta1, delta2; + + + org_pos = anchor->pos + ( edge->opos - anchor->opos ); + org_len = edge2->opos - edge->opos; + org_center = org_pos + ( org_len >> 1 ); + + cur_len = af_latin_compute_stem_width( + hints, dim, org_len, + (AF_Edge_Flags)edge->flags, + (AF_Edge_Flags)edge2->flags ); + + if ( edge2->flags & AF_EDGE_DONE ) + { + FT_TRACE5(( " ADJUST: edge %d (pos=%.2f) moved to %.2f\n", + edge - edges, edge->pos / 64.0, + ( edge2->pos - cur_len ) / 64.0 )); + + edge->pos = edge2->pos - cur_len; + } + + else if ( cur_len < 96 ) + { + FT_Pos u_off, d_off; + + + cur_pos1 = FT_PIX_ROUND( org_center ); + + if (cur_len <= 64 ) + { + u_off = 32; + d_off = 32; + } + else + { + u_off = 38; + d_off = 26; + } + + delta1 = org_center - ( cur_pos1 - u_off ); + if ( delta1 < 0 ) + delta1 = -delta1; + + delta2 = org_center - ( cur_pos1 + d_off ); + if ( delta2 < 0 ) + delta2 = -delta2; + + if ( delta1 < delta2 ) + cur_pos1 -= u_off; + else + cur_pos1 += d_off; + + edge->pos = cur_pos1 - cur_len / 2; + edge2->pos = cur_pos1 + cur_len / 2; + + FT_TRACE5(( " STEM: %d (opos=%.2f) to %d (opos=%.2f)" + " snapped to (%.2f) and (%.2f)\n", + edge - edges, edge->opos / 64.0, + edge2 - edges, edge2->opos / 64.0, + edge->pos / 64.0, edge2->pos / 64.0 )); + } + else + { + org_pos = anchor->pos + ( edge->opos - anchor->opos ); + org_len = edge2->opos - edge->opos; + org_center = org_pos + ( org_len >> 1 ); + + cur_len = af_latin_compute_stem_width( + hints, dim, org_len, + (AF_Edge_Flags)edge->flags, + (AF_Edge_Flags)edge2->flags ); + + cur_pos1 = FT_PIX_ROUND( org_pos ); + delta1 = cur_pos1 + ( cur_len >> 1 ) - org_center; + if ( delta1 < 0 ) + delta1 = -delta1; + + cur_pos2 = FT_PIX_ROUND( org_pos + org_len ) - cur_len; + delta2 = cur_pos2 + ( cur_len >> 1 ) - org_center; + if ( delta2 < 0 ) + delta2 = -delta2; + + edge->pos = ( delta1 < delta2 ) ? cur_pos1 : cur_pos2; + edge2->pos = edge->pos + cur_len; + + FT_TRACE5(( " STEM: %d (opos=%.2f) to %d (opos=%.2f)" + " snapped to (%.2f) and (%.2f)\n", + edge - edges, edge->opos / 64.0, + edge2 - edges, edge2->opos / 64.0, + edge->pos / 64.0, edge2->pos / 64.0 )); + } + + edge->flags |= AF_EDGE_DONE; + edge2->flags |= AF_EDGE_DONE; + + if ( edge > edges && edge->pos < edge[-1].pos ) + { + FT_TRACE5(( " BOUND: %d (pos=%.2f) to (%.2f)\n", + edge - edges, edge->pos / 64.0, edge[-1].pos / 64.0 )); + edge->pos = edge[-1].pos; + } + } + } + + /* make sure that lowercase m's maintain their symmetry */ + + /* In general, lowercase m's have six vertical edges if they are sans */ + /* serif, or twelve if they are with serifs. This implementation is */ + /* based on that assumption, and seems to work very well with most */ + /* faces. However, if for a certain face this assumption is not */ + /* true, the m is just rendered like before. In addition, any stem */ + /* correction will only be applied to symmetrical glyphs (even if the */ + /* glyph is not an m), so the potential for unwanted distortion is */ + /* relatively low. */ + + /* We don't handle horizontal edges since we can't easily assure that */ + /* the third (lowest) stem aligns with the base line; it might end up */ + /* one pixel higher or lower. */ + + n_edges = edge_limit - edges; + if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) ) + { + AF_Edge edge1, edge2, edge3; + FT_Pos dist1, dist2, span, delta; + + + if ( n_edges == 6 ) + { + edge1 = edges; + edge2 = edges + 2; + edge3 = edges + 4; + } + else + { + edge1 = edges + 1; + edge2 = edges + 5; + edge3 = edges + 9; + } + + dist1 = edge2->opos - edge1->opos; + dist2 = edge3->opos - edge2->opos; + + span = dist1 - dist2; + if ( span < 0 ) + span = -span; + + if ( span < 8 ) + { + delta = edge3->pos - ( 2 * edge2->pos - edge1->pos ); + edge3->pos -= delta; + if ( edge3->link ) + edge3->link->pos -= delta; + + /* move the serifs along with the stem */ + if ( n_edges == 12 ) + { + ( edges + 8 )->pos -= delta; + ( edges + 11 )->pos -= delta; + } + + edge3->flags |= AF_EDGE_DONE; + if ( edge3->link ) + edge3->link->flags |= AF_EDGE_DONE; + } + } + + if ( has_serifs || !anchor ) + { + /* + * now hint the remaining edges (serifs and single) in order + * to complete our processing + */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + FT_Pos delta; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + delta = 1000; + + if ( edge->serif ) + { + delta = edge->serif->opos - edge->opos; + if ( delta < 0 ) + delta = -delta; + } + + if ( delta < 64 + 16 ) + { + af_latin_align_serif_edge( hints, edge->serif, edge ); + FT_TRACE5(( " SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)" + " aligned to (%.2f)\n", + edge - edges, edge->opos / 64.0, + edge->serif - edges, edge->serif->opos / 64.0, + edge->pos / 64.0 )); + } + else if ( !anchor ) + { + edge->pos = FT_PIX_ROUND( edge->opos ); + anchor = edge; + FT_TRACE5(( " SERIF_ANCHOR: edge %d (opos=%.2f)" + " snapped to (%.2f)\n", + edge-edges, edge->opos / 64.0, edge->pos / 64.0 )); + } + else + { + AF_Edge before, after; + + + for ( before = edge - 1; before >= edges; before-- ) + if ( before->flags & AF_EDGE_DONE ) + break; + + for ( after = edge + 1; after < edge_limit; after++ ) + if ( after->flags & AF_EDGE_DONE ) + break; + + if ( before >= edges && before < edge && + after < edge_limit && after > edge ) + { + if ( after->opos == before->opos ) + edge->pos = before->pos; + else + edge->pos = before->pos + + FT_MulDiv( edge->opos - before->opos, + after->pos - before->pos, + after->opos - before->opos ); + + FT_TRACE5(( " SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f)" + " from %d (opos=%.2f)\n", + edge - edges, edge->opos / 64.0, + edge->pos / 64.0, + before - edges, before->opos / 64.0 )); + } + else + { + edge->pos = anchor->pos + + ( ( edge->opos - anchor->opos + 16 ) & ~31 ); + + FT_TRACE5(( " SERIF_LINK2: edge %d (opos=%.2f)" + " snapped to (%.2f)\n", + edge - edges, edge->opos / 64.0, edge->pos / 64.0 )); + } + } + + edge->flags |= AF_EDGE_DONE; + + if ( edge > edges && edge->pos < edge[-1].pos ) + edge->pos = edge[-1].pos; + + if ( edge + 1 < edge_limit && + edge[1].flags & AF_EDGE_DONE && + edge->pos > edge[1].pos ) + edge->pos = edge[1].pos; + } + } + + FT_TRACE5(( "\n" )); + } + + + /* Apply the complete hinting algorithm to a latin glyph. */ + + static FT_Error + af_latin_hints_apply( AF_GlyphHints hints, + FT_Outline* outline, + AF_LatinMetrics metrics ) + { + FT_Error error; + int dim; + + + error = af_glyph_hints_reload( hints, outline ); + if ( error ) + goto Exit; + + /* analyze glyph outline */ +#ifdef AF_CONFIG_OPTION_USE_WARPER + if ( metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT || + AF_HINTS_DO_HORIZONTAL( hints ) ) +#else + if ( AF_HINTS_DO_HORIZONTAL( hints ) ) +#endif + { + error = af_latin_hints_detect_features( hints, AF_DIMENSION_HORZ ); + if ( error ) + goto Exit; + } + + if ( AF_HINTS_DO_VERTICAL( hints ) ) + { + error = af_latin_hints_detect_features( hints, AF_DIMENSION_VERT ); + if ( error ) + goto Exit; + + af_latin_hints_compute_blue_edges( hints, metrics ); + } + + /* grid-fit the outline */ + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { +#ifdef AF_CONFIG_OPTION_USE_WARPER + if ( dim == AF_DIMENSION_HORZ && + metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ) + { + AF_WarperRec warper; + FT_Fixed scale; + FT_Pos delta; + + + af_warper_compute( &warper, hints, (AF_Dimension)dim, + &scale, &delta ); + af_glyph_hints_scale_dim( hints, (AF_Dimension)dim, + scale, delta ); + continue; + } +#endif + + if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) || + ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) ) + { + af_latin_hint_edges( hints, (AF_Dimension)dim ); + af_glyph_hints_align_edge_points( hints, (AF_Dimension)dim ); + af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim ); + af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim ); + } + } + af_glyph_hints_save( hints, outline ); + + Exit: + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N S C R I P T C L A S S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* XXX: this should probably fine tuned to differentiate better between */ + /* scripts... */ + + static const AF_Script_UniRangeRec af_latin_uniranges[] = + { + AF_UNIRANGE_REC( 0x0020UL, 0x007FUL ), /* Basic Latin (no control chars) */ + AF_UNIRANGE_REC( 0x00A0UL, 0x00FFUL ), /* Latin-1 Supplement (no control chars) */ + AF_UNIRANGE_REC( 0x0100UL, 0x017FUL ), /* Latin Extended-A */ + AF_UNIRANGE_REC( 0x0180UL, 0x024FUL ), /* Latin Extended-B */ + AF_UNIRANGE_REC( 0x0250UL, 0x02AFUL ), /* IPA Extensions */ + AF_UNIRANGE_REC( 0x02B0UL, 0x02FFUL ), /* Spacing Modifier Letters */ + AF_UNIRANGE_REC( 0x0300UL, 0x036FUL ), /* Combining Diacritical Marks */ + AF_UNIRANGE_REC( 0x0370UL, 0x03FFUL ), /* Greek and Coptic */ + AF_UNIRANGE_REC( 0x0400UL, 0x04FFUL ), /* Cyrillic */ + AF_UNIRANGE_REC( 0x0500UL, 0x052FUL ), /* Cyrillic Supplement */ + AF_UNIRANGE_REC( 0x1D00UL, 0x1D7FUL ), /* Phonetic Extensions */ + AF_UNIRANGE_REC( 0x1D80UL, 0x1DBFUL ), /* Phonetic Extensions Supplement */ + AF_UNIRANGE_REC( 0x1DC0UL, 0x1DFFUL ), /* Combining Diacritical Marks Supplement */ + AF_UNIRANGE_REC( 0x1E00UL, 0x1EFFUL ), /* Latin Extended Additional */ + AF_UNIRANGE_REC( 0x1F00UL, 0x1FFFUL ), /* Greek Extended */ + AF_UNIRANGE_REC( 0x2000UL, 0x206FUL ), /* General Punctuation */ + AF_UNIRANGE_REC( 0x2070UL, 0x209FUL ), /* Superscripts and Subscripts */ + AF_UNIRANGE_REC( 0x20A0UL, 0x20CFUL ), /* Currency Symbols */ + AF_UNIRANGE_REC( 0x2150UL, 0x218FUL ), /* Number Forms */ + AF_UNIRANGE_REC( 0x2460UL, 0x24FFUL ), /* Enclosed Alphanumerics */ + AF_UNIRANGE_REC( 0x2C60UL, 0x2C7FUL ), /* Latin Extended-C */ + AF_UNIRANGE_REC( 0x2DE0UL, 0x2DFFUL ), /* Cyrillic Extended-A */ + AF_UNIRANGE_REC( 0xA640UL, 0xA69FUL ), /* Cyrillic Extended-B */ + AF_UNIRANGE_REC( 0xA720UL, 0xA7FFUL ), /* Latin Extended-D */ + AF_UNIRANGE_REC( 0xFB00UL, 0xFB06UL ), /* Alphab. Present. Forms (Latin Ligs) */ + AF_UNIRANGE_REC( 0x1D400UL, 0x1D7FFUL ), /* Mathematical Alphanumeric Symbols */ + AF_UNIRANGE_REC( 0UL, 0UL ) + }; + + + AF_DEFINE_SCRIPT_CLASS( af_latin_script_class, + AF_SCRIPT_LATIN, + af_latin_uniranges, + + sizeof ( AF_LatinMetricsRec ), + + (AF_Script_InitMetricsFunc) af_latin_metrics_init, + (AF_Script_ScaleMetricsFunc)af_latin_metrics_scale, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) af_latin_hints_init, + (AF_Script_ApplyHintsFunc) af_latin_hints_apply + ) + + +/* END */ diff --git a/src/autofit/aflatin.h b/src/autofit/aflatin.h new file mode 100644 index 0000000..c5c2d13 --- /dev/null +++ b/src/autofit/aflatin.h @@ -0,0 +1,211 @@ +/***************************************************************************/ +/* */ +/* aflatin.h */ +/* */ +/* Auto-fitter hinting routines for latin script (specification). */ +/* */ +/* Copyright 2003-2007, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFLATIN_H__ +#define __AFLATIN_H__ + +#include "afhints.h" + + +FT_BEGIN_HEADER + + + /* the latin-specific script class */ + + AF_DECLARE_SCRIPT_CLASS(af_latin_script_class) + + + /* constants are given with units_per_em == 2048 in mind */ +#define AF_LATIN_CONSTANT( metrics, c ) \ + ( ( (c) * (FT_Long)( (AF_LatinMetrics)(metrics) )->units_per_em ) / 2048 ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L O B A L M E T R I C S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* + * The following declarations could be embedded in the file `aflatin.c'; + * they have been made semi-public to allow alternate script hinters to + * re-use some of them. + */ + + + /* Latin (global) metrics management */ + + enum + { + AF_LATIN_BLUE_CAPITAL_TOP, + AF_LATIN_BLUE_CAPITAL_BOTTOM, + AF_LATIN_BLUE_SMALL_F_TOP, + AF_LATIN_BLUE_SMALL_TOP, + AF_LATIN_BLUE_SMALL_BOTTOM, + AF_LATIN_BLUE_SMALL_MINOR, + + AF_LATIN_BLUE_MAX + }; + + +#define AF_LATIN_IS_TOP_BLUE( b ) ( (b) == AF_LATIN_BLUE_CAPITAL_TOP || \ + (b) == AF_LATIN_BLUE_SMALL_F_TOP || \ + (b) == AF_LATIN_BLUE_SMALL_TOP ) + +#define AF_LATIN_MAX_WIDTHS 16 +#define AF_LATIN_MAX_BLUES AF_LATIN_BLUE_MAX + + + enum + { + AF_LATIN_BLUE_ACTIVE = 1 << 0, /* set if zone height is <= 3/4px */ + AF_LATIN_BLUE_TOP = 1 << 1, /* result of AF_LATIN_IS_TOP_BLUE */ + AF_LATIN_BLUE_ADJUSTMENT = 1 << 2, /* used for scale adjustment */ + /* optimization */ + AF_LATIN_BLUE_FLAG_MAX + }; + + + typedef struct AF_LatinBlueRec_ + { + AF_WidthRec ref; + AF_WidthRec shoot; + FT_UInt flags; + + } AF_LatinBlueRec, *AF_LatinBlue; + + + typedef struct AF_LatinAxisRec_ + { + FT_Fixed scale; + FT_Pos delta; + + FT_UInt width_count; /* number of used widths */ + AF_WidthRec widths[AF_LATIN_MAX_WIDTHS]; /* widths array */ + FT_Pos edge_distance_threshold; /* used for creating edges */ + FT_Pos standard_width; /* the default stem thickness */ + FT_Bool extra_light; /* is standard width very light? */ + + /* ignored for horizontal metrics */ + FT_UInt blue_count; + AF_LatinBlueRec blues[AF_LATIN_BLUE_MAX]; + + FT_Fixed org_scale; + FT_Pos org_delta; + + } AF_LatinAxisRec, *AF_LatinAxis; + + + typedef struct AF_LatinMetricsRec_ + { + AF_ScriptMetricsRec root; + FT_UInt units_per_em; + AF_LatinAxisRec axis[AF_DIMENSION_MAX]; + + } AF_LatinMetricsRec, *AF_LatinMetrics; + + + FT_LOCAL( FT_Error ) + af_latin_metrics_init( AF_LatinMetrics metrics, + FT_Face face ); + + FT_LOCAL( void ) + af_latin_metrics_scale( AF_LatinMetrics metrics, + AF_Scaler scaler ); + + FT_LOCAL( void ) + af_latin_metrics_init_widths( AF_LatinMetrics metrics, + FT_Face face, + FT_ULong charcode ); + + FT_LOCAL( void ) + af_latin_metrics_check_digits( AF_LatinMetrics metrics, + FT_Face face ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L Y P H A N A L Y S I S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + enum + { + AF_LATIN_HINTS_HORZ_SNAP = 1 << 0, /* enable stem width snapping */ + AF_LATIN_HINTS_VERT_SNAP = 1 << 1, /* enable stem height snapping */ + AF_LATIN_HINTS_STEM_ADJUST = 1 << 2, /* enable stem width/height */ + /* adjustment */ + AF_LATIN_HINTS_MONO = 1 << 3 /* indicate monochrome */ + /* rendering */ + }; + + +#define AF_LATIN_HINTS_DO_HORZ_SNAP( h ) \ + AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_HORZ_SNAP ) + +#define AF_LATIN_HINTS_DO_VERT_SNAP( h ) \ + AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_VERT_SNAP ) + +#define AF_LATIN_HINTS_DO_STEM_ADJUST( h ) \ + AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_STEM_ADJUST ) + +#define AF_LATIN_HINTS_DO_MONO( h ) \ + AF_HINTS_TEST_OTHER( h, AF_LATIN_HINTS_MONO ) + + + /* + * This shouldn't normally be exported. However, other scripts might + * like to use this function as-is. + */ + FT_LOCAL( FT_Error ) + af_latin_hints_compute_segments( AF_GlyphHints hints, + AF_Dimension dim ); + + /* + * This shouldn't normally be exported. However, other scripts might + * want to use this function as-is. + */ + FT_LOCAL( void ) + af_latin_hints_link_segments( AF_GlyphHints hints, + AF_Dimension dim ); + + /* + * This shouldn't normally be exported. However, other scripts might + * want to use this function as-is. + */ + FT_LOCAL( FT_Error ) + af_latin_hints_compute_edges( AF_GlyphHints hints, + AF_Dimension dim ); + + FT_LOCAL( FT_Error ) + af_latin_hints_detect_features( AF_GlyphHints hints, + AF_Dimension dim ); + +/* */ + +FT_END_HEADER + +#endif /* __AFLATIN_H__ */ + + +/* END */ diff --git a/src/autofit/aflatin2.c b/src/autofit/aflatin2.c new file mode 100644 index 0000000..ea6af8d --- /dev/null +++ b/src/autofit/aflatin2.c @@ -0,0 +1,2374 @@ +/***************************************************************************/ +/* */ +/* aflatin2.c */ +/* */ +/* Auto-fitter hinting routines for latin script (body). */ +/* */ +/* Copyright 2003-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include FT_ADVANCES_H + +#include "aflatin.h" +#include "aflatin2.h" +#include "aferrors.h" + + +#ifdef AF_CONFIG_OPTION_USE_WARPER +#include "afwarp.h" +#endif + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_aflatin2 + + + FT_LOCAL_DEF( FT_Error ) + af_latin2_hints_compute_segments( AF_GlyphHints hints, + AF_Dimension dim ); + + FT_LOCAL_DEF( void ) + af_latin2_hints_link_segments( AF_GlyphHints hints, + AF_Dimension dim ); + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L O B A L M E T R I C S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + af_latin2_metrics_init_widths( AF_LatinMetrics metrics, + FT_Face face, + FT_ULong charcode ) + { + /* scan the array of segments in each direction */ + AF_GlyphHintsRec hints[1]; + + + af_glyph_hints_init( hints, face->memory ); + + metrics->axis[AF_DIMENSION_HORZ].width_count = 0; + metrics->axis[AF_DIMENSION_VERT].width_count = 0; + + { + FT_Error error; + FT_UInt glyph_index; + int dim; + AF_LatinMetricsRec dummy[1]; + AF_Scaler scaler = &dummy->root.scaler; + + + glyph_index = FT_Get_Char_Index( face, charcode ); + if ( glyph_index == 0 ) + goto Exit; + + error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); + if ( error || face->glyph->outline.n_points <= 0 ) + goto Exit; + + FT_ZERO( dummy ); + + dummy->units_per_em = metrics->units_per_em; + scaler->x_scale = scaler->y_scale = 0x10000L; + scaler->x_delta = scaler->y_delta = 0; + scaler->face = face; + scaler->render_mode = FT_RENDER_MODE_NORMAL; + scaler->flags = 0; + + af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy ); + + error = af_glyph_hints_reload( hints, &face->glyph->outline ); + if ( error ) + goto Exit; + + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_LatinAxis axis = &metrics->axis[dim]; + AF_AxisHints axhints = &hints->axis[dim]; + AF_Segment seg, limit, link; + FT_UInt num_widths = 0; + + + error = af_latin2_hints_compute_segments( hints, + (AF_Dimension)dim ); + if ( error ) + goto Exit; + + af_latin2_hints_link_segments( hints, + (AF_Dimension)dim ); + + seg = axhints->segments; + limit = seg + axhints->num_segments; + + for ( ; seg < limit; seg++ ) + { + link = seg->link; + + /* we only consider stem segments there! */ + if ( link && link->link == seg && link > seg ) + { + FT_Pos dist; + + + dist = seg->pos - link->pos; + if ( dist < 0 ) + dist = -dist; + + if ( num_widths < AF_LATIN_MAX_WIDTHS ) + axis->widths[num_widths++].org = dist; + } + } + + af_sort_widths( num_widths, axis->widths ); + axis->width_count = num_widths; + } + + Exit: + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { + AF_LatinAxis axis = &metrics->axis[dim]; + FT_Pos stdw; + + + stdw = ( axis->width_count > 0 ) + ? axis->widths[0].org + : AF_LATIN_CONSTANT( metrics, 50 ); + + /* let's try 20% of the smallest width */ + axis->edge_distance_threshold = stdw / 5; + axis->standard_width = stdw; + axis->extra_light = 0; + } + } + + af_glyph_hints_done( hints ); + } + + + +#define AF_LATIN_MAX_TEST_CHARACTERS 12 + + + static const char af_latin2_blue_chars[AF_LATIN_MAX_BLUES] + [AF_LATIN_MAX_TEST_CHARACTERS+1] = + { + "THEZOCQS", + "HEZLOCUS", + "fijkdbh", + "xzroesc", + "xzroesc", + "pqgjy" + }; + + + static void + af_latin2_metrics_init_blues( AF_LatinMetrics metrics, + FT_Face face ) + { + FT_Pos flats [AF_LATIN_MAX_TEST_CHARACTERS]; + FT_Pos rounds[AF_LATIN_MAX_TEST_CHARACTERS]; + FT_Int num_flats; + FT_Int num_rounds; + FT_Int bb; + AF_LatinBlue blue; + FT_Error error; + AF_LatinAxis axis = &metrics->axis[AF_DIMENSION_VERT]; + FT_GlyphSlot glyph = face->glyph; + + + /* we compute the blues simply by loading each character from the */ + /* 'af_latin2_blue_chars[blues]' string, then compute its top-most or */ + /* bottom-most points (depending on `AF_IS_TOP_BLUE') */ + + FT_TRACE5(( "blue zones computation\n" )); + FT_TRACE5(( "------------------------------------------------\n" )); + + for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ ) + { + const char* p = af_latin2_blue_chars[bb]; + const char* limit = p + AF_LATIN_MAX_TEST_CHARACTERS; + FT_Pos* blue_ref; + FT_Pos* blue_shoot; + + + FT_TRACE5(( "blue %3d: ", bb )); + + num_flats = 0; + num_rounds = 0; + + for ( ; p < limit && *p; p++ ) + { + FT_UInt glyph_index; + FT_Int best_point, best_y, best_first, best_last; + FT_Vector* points; + FT_Bool round; + + + FT_TRACE5(( "'%c'", *p )); + + /* load the character in the face -- skip unknown or empty ones */ + glyph_index = FT_Get_Char_Index( face, (FT_UInt)*p ); + if ( glyph_index == 0 ) + continue; + + error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); + if ( error || glyph->outline.n_points <= 0 ) + continue; + + /* now compute min or max point indices and coordinates */ + points = glyph->outline.points; + best_point = -1; + best_y = 0; /* make compiler happy */ + best_first = 0; /* ditto */ + best_last = 0; /* ditto */ + + { + FT_Int nn; + FT_Int first = 0; + FT_Int last = -1; + + + for ( nn = 0; nn < glyph->outline.n_contours; first = last+1, nn++ ) + { + FT_Int old_best_point = best_point; + FT_Int pp; + + + last = glyph->outline.contours[nn]; + + /* Avoid single-point contours since they are never rasterized. */ + /* In some fonts, they correspond to mark attachment points */ + /* which are way outside of the glyph's real outline. */ + if ( last == first ) + continue; + + if ( AF_LATIN_IS_TOP_BLUE( bb ) ) + { + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].y > best_y ) + { + best_point = pp; + best_y = points[pp].y; + } + } + else + { + for ( pp = first; pp <= last; pp++ ) + if ( best_point < 0 || points[pp].y < best_y ) + { + best_point = pp; + best_y = points[pp].y; + } + } + + if ( best_point != old_best_point ) + { + best_first = first; + best_last = last; + } + } + FT_TRACE5(( "%5d", best_y )); + } + + /* now check whether the point belongs to a straight or round */ + /* segment; we first need to find in which contour the extremum */ + /* lies, then inspect its previous and next points */ + { + FT_Int start, end, prev, next; + FT_Pos dist; + + + /* now look for the previous and next points that are not on the */ + /* same Y coordinate. Threshold the `closeness'... */ + start = end = best_point; + + do + { + prev = start-1; + if ( prev < best_first ) + prev = best_last; + + dist = points[prev].y - best_y; + if ( dist < -5 || dist > 5 ) + break; + + start = prev; + + } while ( start != best_point ); + + do + { + next = end+1; + if ( next > best_last ) + next = best_first; + + dist = points[next].y - best_y; + if ( dist < -5 || dist > 5 ) + break; + + end = next; + + } while ( end != best_point ); + + /* now, set the `round' flag depending on the segment's kind */ + round = FT_BOOL( + FT_CURVE_TAG( glyph->outline.tags[start] ) != FT_CURVE_TAG_ON || + FT_CURVE_TAG( glyph->outline.tags[ end ] ) != FT_CURVE_TAG_ON ); + + FT_TRACE5(( "%c ", round ? 'r' : 'f' )); + } + + if ( round ) + rounds[num_rounds++] = best_y; + else + flats[num_flats++] = best_y; + } + + FT_TRACE5(( "\n" )); + + if ( num_flats == 0 && num_rounds == 0 ) + { + /* + * we couldn't find a single glyph to compute this blue zone, + * we will simply ignore it then + */ + FT_TRACE5(( "empty\n" )); + continue; + } + + /* we have computed the contents of the `rounds' and `flats' tables, */ + /* now determine the reference and overshoot position of the blue -- */ + /* we simply take the median value after a simple sort */ + af_sort_pos( num_rounds, rounds ); + af_sort_pos( num_flats, flats ); + + blue = & axis->blues[axis->blue_count]; + blue_ref = & blue->ref.org; + blue_shoot = & blue->shoot.org; + + axis->blue_count++; + + if ( num_flats == 0 ) + { + *blue_ref = + *blue_shoot = rounds[num_rounds / 2]; + } + else if ( num_rounds == 0 ) + { + *blue_ref = + *blue_shoot = flats[num_flats / 2]; + } + else + { + *blue_ref = flats[num_flats / 2]; + *blue_shoot = rounds[num_rounds / 2]; + } + + /* there are sometimes problems: if the overshoot position of top */ + /* zones is under its reference position, or the opposite for bottom */ + /* zones. We must thus check everything there and correct the errors */ + if ( *blue_shoot != *blue_ref ) + { + FT_Pos ref = *blue_ref; + FT_Pos shoot = *blue_shoot; + FT_Bool over_ref = FT_BOOL( shoot > ref ); + + + if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref ) + *blue_shoot = *blue_ref = ( shoot + ref ) / 2; + } + + blue->flags = 0; + if ( AF_LATIN_IS_TOP_BLUE( bb ) ) + blue->flags |= AF_LATIN_BLUE_TOP; + + /* + * The following flags is used later to adjust the y and x scales + * in order to optimize the pixel grid alignment of the top of small + * letters. + */ + if ( bb == AF_LATIN_BLUE_SMALL_TOP ) + blue->flags |= AF_LATIN_BLUE_ADJUSTMENT; + + FT_TRACE5(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot )); + } + + return; + } + + + FT_LOCAL_DEF( void ) + af_latin2_metrics_check_digits( AF_LatinMetrics metrics, + FT_Face face ) + { + FT_UInt i; + FT_Bool started = 0, same_width = 1; + FT_Fixed advance, old_advance = 0; + + + /* check whether all ASCII digits have the same advance width; */ + /* digit `0' is 0x30 in all supported charmaps */ + for ( i = 0x30; i <= 0x39; i++ ) + { + FT_UInt glyph_index; + + + glyph_index = FT_Get_Char_Index( face, i ); + if ( glyph_index == 0 ) + continue; + + if ( FT_Get_Advance( face, glyph_index, + FT_LOAD_NO_SCALE | + FT_LOAD_NO_HINTING | + FT_LOAD_IGNORE_TRANSFORM, + &advance ) ) + continue; + + if ( started ) + { + if ( advance != old_advance ) + { + same_width = 0; + break; + } + } + else + { + old_advance = advance; + started = 1; + } + } + + metrics->root.digits_have_same_width = same_width; + } + + + FT_LOCAL_DEF( FT_Error ) + af_latin2_metrics_init( AF_LatinMetrics metrics, + FT_Face face ) + { + FT_Error error = AF_Err_Ok; + FT_CharMap oldmap = face->charmap; + FT_UInt ee; + + static const FT_Encoding latin_encodings[] = + { + FT_ENCODING_UNICODE, + FT_ENCODING_APPLE_ROMAN, + FT_ENCODING_ADOBE_STANDARD, + FT_ENCODING_ADOBE_LATIN_1, + FT_ENCODING_NONE /* end of list */ + }; + + + metrics->units_per_em = face->units_per_EM; + + /* do we have a latin charmap in there? */ + for ( ee = 0; latin_encodings[ee] != FT_ENCODING_NONE; ee++ ) + { + error = FT_Select_Charmap( face, latin_encodings[ee] ); + if ( !error ) + break; + } + + if ( !error ) + { + /* For now, compute the standard width and height from the `o'. */ + af_latin2_metrics_init_widths( metrics, face, 'o' ); + af_latin2_metrics_init_blues( metrics, face ); + af_latin2_metrics_check_digits( metrics, face ); + } + + FT_Set_Charmap( face, oldmap ); + return AF_Err_Ok; + } + + + static void + af_latin2_metrics_scale_dim( AF_LatinMetrics metrics, + AF_Scaler scaler, + AF_Dimension dim ) + { + FT_Fixed scale; + FT_Pos delta; + AF_LatinAxis axis; + FT_UInt nn; + + + if ( dim == AF_DIMENSION_HORZ ) + { + scale = scaler->x_scale; + delta = scaler->x_delta; + } + else + { + scale = scaler->y_scale; + delta = scaler->y_delta; + } + + axis = &metrics->axis[dim]; + + if ( axis->org_scale == scale && axis->org_delta == delta ) + return; + + axis->org_scale = scale; + axis->org_delta = delta; + + /* + * correct Y scale to optimize the alignment of the top of small + * letters to the pixel grid + */ + if ( dim == AF_DIMENSION_VERT ) + { + AF_LatinAxis vaxis = &metrics->axis[AF_DIMENSION_VERT]; + AF_LatinBlue blue = NULL; + + + for ( nn = 0; nn < vaxis->blue_count; nn++ ) + { + if ( vaxis->blues[nn].flags & AF_LATIN_BLUE_ADJUSTMENT ) + { + blue = &vaxis->blues[nn]; + break; + } + } + + if ( blue ) + { + FT_Pos scaled = FT_MulFix( blue->shoot.org, scaler->y_scale ); + FT_Pos fitted = ( scaled + 40 ) & ~63; + +#if 1 + if ( scaled != fitted ) + { + scale = FT_MulDiv( scale, fitted, scaled ); + FT_TRACE5(( "== scaled x-top = %.2g" + " fitted = %.2g, scaling = %.4g\n", + scaled / 64.0, fitted / 64.0, + ( fitted * 1.0 ) / scaled )); + } +#endif + } + } + + axis->scale = scale; + axis->delta = delta; + + if ( dim == AF_DIMENSION_HORZ ) + { + metrics->root.scaler.x_scale = scale; + metrics->root.scaler.x_delta = delta; + } + else + { + metrics->root.scaler.y_scale = scale; + metrics->root.scaler.y_delta = delta; + } + + /* scale the standard widths */ + for ( nn = 0; nn < axis->width_count; nn++ ) + { + AF_Width width = axis->widths + nn; + + + width->cur = FT_MulFix( width->org, scale ); + width->fit = width->cur; + } + + /* an extra-light axis corresponds to a standard width that is */ + /* smaller than 5/8 pixels */ + axis->extra_light = + (FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 ); + + if ( dim == AF_DIMENSION_VERT ) + { + /* scale the blue zones */ + for ( nn = 0; nn < axis->blue_count; nn++ ) + { + AF_LatinBlue blue = &axis->blues[nn]; + FT_Pos dist; + + + blue->ref.cur = FT_MulFix( blue->ref.org, scale ) + delta; + blue->ref.fit = blue->ref.cur; + blue->shoot.cur = FT_MulFix( blue->shoot.org, scale ) + delta; + blue->shoot.fit = blue->shoot.cur; + blue->flags &= ~AF_LATIN_BLUE_ACTIVE; + + /* a blue zone is only active if it is less than 3/4 pixels tall */ + dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale ); + if ( dist <= 48 && dist >= -48 ) + { + FT_Pos delta1, delta2; + + delta1 = blue->shoot.org - blue->ref.org; + delta2 = delta1; + if ( delta1 < 0 ) + delta2 = -delta2; + + delta2 = FT_MulFix( delta2, scale ); + + if ( delta2 < 32 ) + delta2 = 0; + else if ( delta2 < 64 ) + delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 ); + else + delta2 = FT_PIX_ROUND( delta2 ); + + if ( delta1 < 0 ) + delta2 = -delta2; + + blue->ref.fit = FT_PIX_ROUND( blue->ref.cur ); + blue->shoot.fit = blue->ref.fit + delta2; + + FT_TRACE5(( ">> activating blue zone %d:" + " ref.cur=%.2g ref.fit=%.2g" + " shoot.cur=%.2g shoot.fit=%.2g\n", + nn, blue->ref.cur / 64.0, blue->ref.fit / 64.0, + blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 )); + + blue->flags |= AF_LATIN_BLUE_ACTIVE; + } + } + } + } + + + FT_LOCAL_DEF( void ) + af_latin2_metrics_scale( AF_LatinMetrics metrics, + AF_Scaler scaler ) + { + metrics->root.scaler.render_mode = scaler->render_mode; + metrics->root.scaler.face = scaler->face; + + af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ ); + af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L Y P H A N A L Y S I S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define SORT_SEGMENTS + + FT_LOCAL_DEF( FT_Error ) + af_latin2_hints_compute_segments( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + FT_Memory memory = hints->memory; + FT_Error error = AF_Err_Ok; + AF_Segment segment = NULL; + AF_SegmentRec seg0; + AF_Point* contour = hints->contours; + AF_Point* contour_limit = contour + hints->num_contours; + AF_Direction major_dir, segment_dir; + + + FT_ZERO( &seg0 ); + seg0.score = 32000; + seg0.flags = AF_EDGE_NORMAL; + + major_dir = (AF_Direction)FT_ABS( axis->major_dir ); + segment_dir = major_dir; + + axis->num_segments = 0; + + /* set up (u,v) in each point */ + if ( dim == AF_DIMENSION_HORZ ) + { + AF_Point point = hints->points; + AF_Point limit = point + hints->num_points; + + + for ( ; point < limit; point++ ) + { + point->u = point->fx; + point->v = point->fy; + } + } + else + { + AF_Point point = hints->points; + AF_Point limit = point + hints->num_points; + + + for ( ; point < limit; point++ ) + { + point->u = point->fy; + point->v = point->fx; + } + } + + /* do each contour separately */ + for ( ; contour < contour_limit; contour++ ) + { + AF_Point point = contour[0]; + AF_Point start = point; + AF_Point last = point->prev; + + + if ( point == last ) /* skip singletons -- just in case */ + continue; + + /* already on an edge ?, backtrack to find its start */ + if ( FT_ABS( point->in_dir ) == major_dir ) + { + point = point->prev; + + while ( point->in_dir == start->in_dir ) + point = point->prev; + } + else /* otherwise, find first segment start, if any */ + { + while ( FT_ABS( point->out_dir ) != major_dir ) + { + point = point->next; + + if ( point == start ) + goto NextContour; + } + } + + start = point; + + for (;;) + { + AF_Point first; + FT_Pos min_u, min_v, max_u, max_v; + + /* we're at the start of a new segment */ + FT_ASSERT( FT_ABS( point->out_dir ) == major_dir && + point->in_dir != point->out_dir ); + first = point; + + min_u = max_u = point->u; + min_v = max_v = point->v; + + point = point->next; + + while ( point->out_dir == first->out_dir ) + { + point = point->next; + + if ( point->u < min_u ) + min_u = point->u; + + if ( point->u > max_u ) + max_u = point->u; + } + + if ( point->v < min_v ) + min_v = point->v; + + if ( point->v > max_v ) + max_v = point->v; + + /* record new segment */ + error = af_axis_hints_new_segment( axis, memory, &segment ); + if ( error ) + goto Exit; + + segment[0] = seg0; + segment->dir = first->out_dir; + segment->first = first; + segment->last = point; + segment->pos = (FT_Short)(( min_u + max_u ) >> 1); + segment->min_coord = (FT_Short) min_v; + segment->max_coord = (FT_Short) max_v; + segment->height = (FT_Short)(max_v - min_v); + + /* a segment is round if it doesn't have successive */ + /* on-curve points. */ + { + AF_Point pt = first; + AF_Point last = point; + AF_Flags f0 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL); + AF_Flags f1; + + + segment->flags &= ~AF_EDGE_ROUND; + + for ( ; pt != last; f0 = f1 ) + { + pt = pt->next; + f1 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL); + + if ( !f0 && !f1 ) + break; + + if ( pt == last ) + segment->flags |= AF_EDGE_ROUND; + } + } + + /* this can happen in the case of a degenerate contour + * e.g. a 2-point vertical contour + */ + if ( point == start ) + break; + + /* jump to the start of the next segment, if any */ + while ( FT_ABS(point->out_dir) != major_dir ) + { + point = point->next; + + if ( point == start ) + goto NextContour; + } + } + + NextContour: + ; + } /* contours */ + + /* now slightly increase the height of segments when this makes */ + /* sense -- this is used to better detect and ignore serifs */ + { + AF_Segment segments = axis->segments; + AF_Segment segments_end = segments + axis->num_segments; + + + for ( segment = segments; segment < segments_end; segment++ ) + { + AF_Point first = segment->first; + AF_Point last = segment->last; + AF_Point p; + FT_Pos first_v = first->v; + FT_Pos last_v = last->v; + + + if ( first == last ) + continue; + + if ( first_v < last_v ) + { + p = first->prev; + if ( p->v < first_v ) + segment->height = (FT_Short)( segment->height + + ( ( first_v - p->v ) >> 1 ) ); + + p = last->next; + if ( p->v > last_v ) + segment->height = (FT_Short)( segment->height + + ( ( p->v - last_v ) >> 1 ) ); + } + else + { + p = first->prev; + if ( p->v > first_v ) + segment->height = (FT_Short)( segment->height + + ( ( p->v - first_v ) >> 1 ) ); + + p = last->next; + if ( p->v < last_v ) + segment->height = (FT_Short)( segment->height + + ( ( last_v - p->v ) >> 1 ) ); + } + } + } + +#ifdef AF_SORT_SEGMENTS + /* place all segments with a negative direction to the start + * of the array, used to speed up segment linking later... + */ + { + AF_Segment segments = axis->segments; + FT_UInt count = axis->num_segments; + FT_UInt ii, jj; + + for (ii = 0; ii < count; ii++) + { + if ( segments[ii].dir > 0 ) + { + for (jj = ii+1; jj < count; jj++) + { + if ( segments[jj].dir < 0 ) + { + AF_SegmentRec tmp; + + tmp = segments[ii]; + segments[ii] = segments[jj]; + segments[jj] = tmp; + + break; + } + } + + if ( jj == count ) + break; + } + } + axis->mid_segments = ii; + } +#endif + + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + af_latin2_hints_link_segments( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; +#ifdef AF_SORT_SEGMENTS + AF_Segment segment_mid = segments + axis->mid_segments; +#endif + FT_Pos len_threshold, len_score; + AF_Segment seg1, seg2; + + + len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 ); + if ( len_threshold == 0 ) + len_threshold = 1; + + len_score = AF_LATIN_CONSTANT( hints->metrics, 6000 ); + +#ifdef AF_SORT_SEGMENTS + for ( seg1 = segments; seg1 < segment_mid; seg1++ ) + { + if ( seg1->dir != axis->major_dir || seg1->first == seg1->last ) + continue; + + for ( seg2 = segment_mid; seg2 < segment_limit; seg2++ ) +#else + /* now compare each segment to the others */ + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + /* the fake segments are introduced to hint the metrics -- */ + /* we must never link them to anything */ + if ( seg1->dir != axis->major_dir || seg1->first == seg1->last ) + continue; + + for ( seg2 = segments; seg2 < segment_limit; seg2++ ) + if ( seg1->dir + seg2->dir == 0 && seg2->pos > seg1->pos ) +#endif + { + FT_Pos pos1 = seg1->pos; + FT_Pos pos2 = seg2->pos; + FT_Pos dist = pos2 - pos1; + + + if ( dist < 0 ) + continue; + + { + FT_Pos min = seg1->min_coord; + FT_Pos max = seg1->max_coord; + FT_Pos len, score; + + + if ( min < seg2->min_coord ) + min = seg2->min_coord; + + if ( max > seg2->max_coord ) + max = seg2->max_coord; + + len = max - min; + if ( len >= len_threshold ) + { + score = dist + len_score / len; + if ( score < seg1->score ) + { + seg1->score = score; + seg1->link = seg2; + } + + if ( score < seg2->score ) + { + seg2->score = score; + seg2->link = seg1; + } + } + } + } + } +#if 0 + } +#endif + + /* now, compute the `serif' segments */ + for ( seg1 = segments; seg1 < segment_limit; seg1++ ) + { + seg2 = seg1->link; + + if ( seg2 ) + { + if ( seg2->link != seg1 ) + { + seg1->link = 0; + seg1->serif = seg2->link; + } + } + } + } + + + FT_LOCAL_DEF( FT_Error ) + af_latin2_hints_compute_edges( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + FT_Error error = AF_Err_Ok; + FT_Memory memory = hints->memory; + AF_LatinAxis laxis = &((AF_LatinMetrics)hints->metrics)->axis[dim]; + + AF_Segment segments = axis->segments; + AF_Segment segment_limit = segments + axis->num_segments; + AF_Segment seg; + + AF_Direction up_dir; + FT_Fixed scale; + FT_Pos edge_distance_threshold; + FT_Pos segment_length_threshold; + + + axis->num_edges = 0; + + scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale + : hints->y_scale; + + up_dir = ( dim == AF_DIMENSION_HORZ ) ? AF_DIR_UP + : AF_DIR_RIGHT; + + /* + * We want to ignore very small (mostly serif) segments, we do that + * by ignoring those that whose length is less than a given fraction + * of the standard width. If there is no standard width, we ignore + * those that are less than a given size in pixels + * + * also, unlink serif segments that are linked to segments farther + * than 50% of the standard width + */ + if ( dim == AF_DIMENSION_HORZ ) + { + if ( laxis->width_count > 0 ) + segment_length_threshold = (laxis->standard_width * 10 ) >> 4; + else + segment_length_threshold = FT_DivFix( 64, hints->y_scale ); + } + else + segment_length_threshold = 0; + + /*********************************************************************/ + /* */ + /* We will begin by generating a sorted table of edges for the */ + /* current direction. To do so, we simply scan each segment and try */ + /* to find an edge in our table that corresponds to its position. */ + /* */ + /* If no edge is found, we create and insert a new edge in the */ + /* sorted table. Otherwise, we simply add the segment to the edge's */ + /* list which will be processed in the second step to compute the */ + /* edge's properties. */ + /* */ + /* Note that the edges table is sorted along the segment/edge */ + /* position. */ + /* */ + /*********************************************************************/ + + edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold, + scale ); + if ( edge_distance_threshold > 64 / 4 ) + edge_distance_threshold = 64 / 4; + + edge_distance_threshold = FT_DivFix( edge_distance_threshold, + scale ); + + for ( seg = segments; seg < segment_limit; seg++ ) + { + AF_Edge found = 0; + FT_Int ee; + + + if ( seg->height < segment_length_threshold ) + continue; + + /* A special case for serif edges: If they are smaller than */ + /* 1.5 pixels we ignore them. */ + if ( seg->serif ) + { + FT_Pos dist = seg->serif->pos - seg->pos; + + if (dist < 0) + dist = -dist; + + if (dist >= laxis->standard_width >> 1) + { + /* unlink this serif, it is too distant from its reference stem */ + seg->serif = NULL; + } + else if ( 2*seg->height < 3 * segment_length_threshold ) + continue; + } + + /* look for an edge corresponding to the segment */ + for ( ee = 0; ee < axis->num_edges; ee++ ) + { + AF_Edge edge = axis->edges + ee; + FT_Pos dist; + + + dist = seg->pos - edge->fpos; + if ( dist < 0 ) + dist = -dist; + + if ( dist < edge_distance_threshold && edge->dir == seg->dir ) + { + found = edge; + break; + } + } + + if ( !found ) + { + AF_Edge edge; + + + /* insert a new edge in the list and */ + /* sort according to the position */ + error = af_axis_hints_new_edge( axis, seg->pos, seg->dir, + memory, &edge ); + if ( error ) + goto Exit; + + /* add the segment to the new edge's list */ + FT_ZERO( edge ); + + edge->first = seg; + edge->last = seg; + edge->fpos = seg->pos; + edge->dir = seg->dir; + edge->opos = edge->pos = FT_MulFix( seg->pos, scale ); + seg->edge_next = seg; + } + else + { + /* if an edge was found, simply add the segment to the edge's */ + /* list */ + seg->edge_next = found->first; + found->last->edge_next = seg; + found->last = seg; + } + } + + + /*********************************************************************/ + /* */ + /* Good, we will now compute each edge's properties according to */ + /* segments found on its position. Basically, these are: */ + /* */ + /* - edge's main direction */ + /* - stem edge, serif edge or both (which defaults to stem then) */ + /* - rounded edge, straight or both (which defaults to straight) */ + /* - link for edge */ + /* */ + /*********************************************************************/ + + /* first of all, set the `edge' field in each segment -- this is */ + /* required in order to compute edge links */ + + /* + * Note that removing this loop and setting the `edge' field of each + * segment directly in the code above slows down execution speed for + * some reasons on platforms like the Sun. + */ + { + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + AF_Edge edge; + + + for ( edge = edges; edge < edge_limit; edge++ ) + { + seg = edge->first; + if ( seg ) + do + { + seg->edge = edge; + seg = seg->edge_next; + + } while ( seg != edge->first ); + } + + /* now, compute each edge properties */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + FT_Int is_round = 0; /* does it contain round segments? */ + FT_Int is_straight = 0; /* does it contain straight segments? */ +#if 0 + FT_Pos ups = 0; /* number of upwards segments */ + FT_Pos downs = 0; /* number of downwards segments */ +#endif + + + seg = edge->first; + + do + { + FT_Bool is_serif; + + + /* check for roundness of segment */ + if ( seg->flags & AF_EDGE_ROUND ) + is_round++; + else + is_straight++; + +#if 0 + /* check for segment direction */ + if ( seg->dir == up_dir ) + ups += seg->max_coord-seg->min_coord; + else + downs += seg->max_coord-seg->min_coord; +#endif + + /* check for links -- if seg->serif is set, then seg->link must */ + /* be ignored */ + is_serif = (FT_Bool)( seg->serif && + seg->serif->edge && + seg->serif->edge != edge ); + + if ( ( seg->link && seg->link->edge != NULL ) || is_serif ) + { + AF_Edge edge2; + AF_Segment seg2; + + + edge2 = edge->link; + seg2 = seg->link; + + if ( is_serif ) + { + seg2 = seg->serif; + edge2 = edge->serif; + } + + if ( edge2 ) + { + FT_Pos edge_delta; + FT_Pos seg_delta; + + + edge_delta = edge->fpos - edge2->fpos; + if ( edge_delta < 0 ) + edge_delta = -edge_delta; + + seg_delta = seg->pos - seg2->pos; + if ( seg_delta < 0 ) + seg_delta = -seg_delta; + + if ( seg_delta < edge_delta ) + edge2 = seg2->edge; + } + else + edge2 = seg2->edge; + + if ( is_serif ) + { + edge->serif = edge2; + edge2->flags |= AF_EDGE_SERIF; + } + else + edge->link = edge2; + } + + seg = seg->edge_next; + + } while ( seg != edge->first ); + + /* set the round/straight flags */ + edge->flags = AF_EDGE_NORMAL; + + if ( is_round > 0 && is_round >= is_straight ) + edge->flags |= AF_EDGE_ROUND; + +#if 0 + /* set the edge's main direction */ + edge->dir = AF_DIR_NONE; + + if ( ups > downs ) + edge->dir = (FT_Char)up_dir; + + else if ( ups < downs ) + edge->dir = (FT_Char)-up_dir; + + else if ( ups == downs ) + edge->dir = 0; /* both up and down! */ +#endif + + /* gets rid of serifs if link is set */ + /* XXX: This gets rid of many unpleasant artefacts! */ + /* Example: the `c' in cour.pfa at size 13 */ + + if ( edge->serif && edge->link ) + edge->serif = 0; + } + } + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + af_latin2_hints_detect_features( AF_GlyphHints hints, + AF_Dimension dim ) + { + FT_Error error; + + + error = af_latin2_hints_compute_segments( hints, dim ); + if ( !error ) + { + af_latin2_hints_link_segments( hints, dim ); + + error = af_latin2_hints_compute_edges( hints, dim ); + } + return error; + } + + + FT_LOCAL_DEF( void ) + af_latin2_hints_compute_blue_edges( AF_GlyphHints hints, + AF_LatinMetrics metrics ) + { + AF_AxisHints axis = &hints->axis[AF_DIMENSION_VERT]; + AF_Edge edge = axis->edges; + AF_Edge edge_limit = edge + axis->num_edges; + AF_LatinAxis latin = &metrics->axis[AF_DIMENSION_VERT]; + FT_Fixed scale = latin->scale; + FT_Pos best_dist0; /* initial threshold */ + + + /* compute the initial threshold as a fraction of the EM size */ + best_dist0 = FT_MulFix( metrics->units_per_em / 40, scale ); + + if ( best_dist0 > 64 / 2 ) + best_dist0 = 64 / 2; + + /* compute which blue zones are active, i.e. have their scaled */ + /* size < 3/4 pixels */ + + /* for each horizontal edge search the blue zone which is closest */ + for ( ; edge < edge_limit; edge++ ) + { + FT_Int bb; + AF_Width best_blue = NULL; + FT_Pos best_dist = best_dist0; + + for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ ) + { + AF_LatinBlue blue = latin->blues + bb; + FT_Bool is_top_blue, is_major_dir; + + + /* skip inactive blue zones (i.e., those that are too small) */ + if ( !( blue->flags & AF_LATIN_BLUE_ACTIVE ) ) + continue; + + /* if it is a top zone, check for right edges -- if it is a bottom */ + /* zone, check for left edges */ + /* */ + /* of course, that's for TrueType */ + is_top_blue = (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_TOP ) != 0 ); + is_major_dir = FT_BOOL( edge->dir == axis->major_dir ); + + /* if it is a top zone, the edge must be against the major */ + /* direction; if it is a bottom zone, it must be in the major */ + /* direction */ + if ( is_top_blue ^ is_major_dir ) + { + FT_Pos dist; + AF_Width compare; + + + /* if it's a rounded edge, compare it to the overshoot position */ + /* if it's a flat edge, compare it to the reference position */ + if ( edge->flags & AF_EDGE_ROUND ) + compare = &blue->shoot; + else + compare = &blue->ref; + + dist = edge->fpos - compare->org; + if (dist < 0) + dist = -dist; + + dist = FT_MulFix( dist, scale ); + if ( dist < best_dist ) + { + best_dist = dist; + best_blue = compare; + } + +#if 0 + /* now, compare it to the overshoot position if the edge is */ + /* rounded, and if the edge is over the reference position of a */ + /* top zone, or under the reference position of a bottom zone */ + if ( edge->flags & AF_EDGE_ROUND && dist != 0 ) + { + FT_Bool is_under_ref = FT_BOOL( edge->fpos < blue->ref.org ); + + + if ( is_top_blue ^ is_under_ref ) + { + blue = latin->blues + bb; + dist = edge->fpos - blue->shoot.org; + if ( dist < 0 ) + dist = -dist; + + dist = FT_MulFix( dist, scale ); + if ( dist < best_dist ) + { + best_dist = dist; + best_blue = & blue->shoot; + } + } + } +#endif + } + } + + if ( best_blue ) + edge->blue_edge = best_blue; + } + } + + + static FT_Error + af_latin2_hints_init( AF_GlyphHints hints, + AF_LatinMetrics metrics ) + { + FT_Render_Mode mode; + FT_UInt32 scaler_flags, other_flags; + FT_Face face = metrics->root.scaler.face; + + + af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics ); + + /* + * correct x_scale and y_scale if needed, since they may have + * been modified `af_latin2_metrics_scale_dim' above + */ + hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale; + hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta; + hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale; + hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta; + + /* compute flags depending on render mode, etc. */ + mode = metrics->root.scaler.render_mode; + +#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */ + if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V ) + { + metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL; + } +#endif + + scaler_flags = hints->scaler_flags; + other_flags = 0; + + /* + * We snap the width of vertical stems for the monochrome and + * horizontal LCD rendering targets only. + */ + if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD ) + other_flags |= AF_LATIN_HINTS_HORZ_SNAP; + + /* + * We snap the width of horizontal stems for the monochrome and + * vertical LCD rendering targets only. + */ + if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V ) + other_flags |= AF_LATIN_HINTS_VERT_SNAP; + + /* + * We adjust stems to full pixels only if we don't use the `light' mode. + */ + if ( mode != FT_RENDER_MODE_LIGHT ) + other_flags |= AF_LATIN_HINTS_STEM_ADJUST; + + if ( mode == FT_RENDER_MODE_MONO ) + other_flags |= AF_LATIN_HINTS_MONO; + + /* + * In `light' hinting mode we disable horizontal hinting completely. + * We also do it if the face is italic. + */ + if ( mode == FT_RENDER_MODE_LIGHT || + (face->style_flags & FT_STYLE_FLAG_ITALIC) != 0 ) + scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL; + + hints->scaler_flags = scaler_flags; + hints->other_flags = other_flags; + + return 0; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N G L Y P H G R I D - F I T T I N G *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* snap a given width in scaled coordinates to one of the */ + /* current standard widths */ + + static FT_Pos + af_latin2_snap_width( AF_Width widths, + FT_Int count, + FT_Pos width ) + { + int n; + FT_Pos best = 64 + 32 + 2; + FT_Pos reference = width; + FT_Pos scaled; + + + for ( n = 0; n < count; n++ ) + { + FT_Pos w; + FT_Pos dist; + + + w = widths[n].cur; + dist = width - w; + if ( dist < 0 ) + dist = -dist; + if ( dist < best ) + { + best = dist; + reference = w; + } + } + + scaled = FT_PIX_ROUND( reference ); + + if ( width >= reference ) + { + if ( width < scaled + 48 ) + width = reference; + } + else + { + if ( width > scaled - 48 ) + width = reference; + } + + return width; + } + + + /* compute the snapped width of a given stem */ + + static FT_Pos + af_latin2_compute_stem_width( AF_GlyphHints hints, + AF_Dimension dim, + FT_Pos width, + AF_Edge_Flags base_flags, + AF_Edge_Flags stem_flags ) + { + AF_LatinMetrics metrics = (AF_LatinMetrics) hints->metrics; + AF_LatinAxis axis = & metrics->axis[dim]; + FT_Pos dist = width; + FT_Int sign = 0; + FT_Int vertical = ( dim == AF_DIMENSION_VERT ); + + + FT_UNUSED(base_flags); + + if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) || + axis->extra_light ) + return width; + + if ( dist < 0 ) + { + dist = -width; + sign = 1; + } + + if ( ( vertical && !AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) || + ( !vertical && !AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) ) + { + /* smooth hinting process: very lightly quantize the stem width */ + + /* leave the widths of serifs alone */ + + if ( ( stem_flags & AF_EDGE_SERIF ) && vertical && ( dist < 3 * 64 ) ) + goto Done_Width; + +#if 0 + else if ( ( base_flags & AF_EDGE_ROUND ) ) + { + if ( dist < 80 ) + dist = 64; + } + else if ( dist < 56 ) + dist = 56; +#endif + if ( axis->width_count > 0 ) + { + FT_Pos delta; + + + /* compare to standard width */ + if ( axis->width_count > 0 ) + { + delta = dist - axis->widths[0].cur; + + if ( delta < 0 ) + delta = -delta; + + if ( delta < 40 ) + { + dist = axis->widths[0].cur; + if ( dist < 48 ) + dist = 48; + + goto Done_Width; + } + } + + if ( dist < 3 * 64 ) + { + delta = dist & 63; + dist &= -64; + + if ( delta < 10 ) + dist += delta; + + else if ( delta < 32 ) + dist += 10; + + else if ( delta < 54 ) + dist += 54; + + else + dist += delta; + } + else + dist = ( dist + 32 ) & ~63; + } + } + else + { + /* strong hinting process: snap the stem width to integer pixels */ + FT_Pos org_dist = dist; + + + dist = af_latin2_snap_width( axis->widths, axis->width_count, dist ); + + if ( vertical ) + { + /* in the case of vertical hinting, always round */ + /* the stem heights to integer pixels */ + + if ( dist >= 64 ) + dist = ( dist + 16 ) & ~63; + else + dist = 64; + } + else + { + if ( AF_LATIN_HINTS_DO_MONO( hints ) ) + { + /* monochrome horizontal hinting: snap widths to integer pixels */ + /* with a different threshold */ + + if ( dist < 64 ) + dist = 64; + else + dist = ( dist + 32 ) & ~63; + } + else + { + /* for horizontal anti-aliased hinting, we adopt a more subtle */ + /* approach: we strengthen small stems, round stems whose size */ + /* is between 1 and 2 pixels to an integer, otherwise nothing */ + + if ( dist < 48 ) + dist = ( dist + 64 ) >> 1; + + else if ( dist < 128 ) + { + /* We only round to an integer width if the corresponding */ + /* distortion is less than 1/4 pixel. Otherwise this */ + /* makes everything worse since the diagonals, which are */ + /* not hinted, appear a lot bolder or thinner than the */ + /* vertical stems. */ + + FT_Int delta; + + + dist = ( dist + 22 ) & ~63; + delta = dist - org_dist; + if ( delta < 0 ) + delta = -delta; + + if (delta >= 16) + { + dist = org_dist; + if ( dist < 48 ) + dist = ( dist + 64 ) >> 1; + } + } + else + /* round otherwise to prevent color fringes in LCD mode */ + dist = ( dist + 32 ) & ~63; + } + } + } + + Done_Width: + if ( sign ) + dist = -dist; + + return dist; + } + + + /* align one stem edge relative to the previous stem edge */ + + static void + af_latin2_align_linked_edge( AF_GlyphHints hints, + AF_Dimension dim, + AF_Edge base_edge, + AF_Edge stem_edge ) + { + FT_Pos dist = stem_edge->opos - base_edge->opos; + + FT_Pos fitted_width = af_latin2_compute_stem_width( + hints, dim, dist, + (AF_Edge_Flags)base_edge->flags, + (AF_Edge_Flags)stem_edge->flags ); + + + stem_edge->pos = base_edge->pos + fitted_width; + + FT_TRACE5(( "LINK: edge %d (opos=%.2f) linked to (%.2f), " + "dist was %.2f, now %.2f\n", + stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0, + stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 )); + } + + + static void + af_latin2_align_serif_edge( AF_GlyphHints hints, + AF_Edge base, + AF_Edge serif ) + { + FT_UNUSED( hints ); + + serif->pos = base->pos + (serif->opos - base->opos); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** E D G E H I N T I N G ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( void ) + af_latin2_hint_edges( AF_GlyphHints hints, + AF_Dimension dim ) + { + AF_AxisHints axis = &hints->axis[dim]; + AF_Edge edges = axis->edges; + AF_Edge edge_limit = edges + axis->num_edges; + AF_Edge edge; + AF_Edge anchor = 0; + FT_Int has_serifs = 0; + FT_Pos anchor_drift = 0; + + + + FT_TRACE5(( "==== hinting %s edges =====\n", + dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" )); + + /* we begin by aligning all stems relative to the blue zone */ + /* if needed -- that's only for horizontal edges */ + + if ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_BLUES( hints ) ) + { + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Width blue; + AF_Edge edge1, edge2; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + blue = edge->blue_edge; + edge1 = NULL; + edge2 = edge->link; + + if ( blue ) + { + edge1 = edge; + } + else if ( edge2 && edge2->blue_edge ) + { + blue = edge2->blue_edge; + edge1 = edge2; + edge2 = edge; + } + + if ( !edge1 ) + continue; + + FT_TRACE5(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), " + "was (%.2f)\n", + edge1-edges, edge1->opos / 64.0, blue->fit / 64.0, + edge1->pos / 64.0 )); + + edge1->pos = blue->fit; + edge1->flags |= AF_EDGE_DONE; + + if ( edge2 && !edge2->blue_edge ) + { + af_latin2_align_linked_edge( hints, dim, edge1, edge2 ); + edge2->flags |= AF_EDGE_DONE; + } + + if ( !anchor ) + { + anchor = edge; + + anchor_drift = (anchor->pos - anchor->opos); + if (edge2) + anchor_drift = (anchor_drift + (edge2->pos - edge2->opos)) >> 1; + } + } + } + + /* now we will align all stem edges, trying to maintain the */ + /* relative order of stems in the glyph */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + AF_Edge edge2; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + /* skip all non-stem edges */ + edge2 = edge->link; + if ( !edge2 ) + { + has_serifs++; + continue; + } + + /* now align the stem */ + + /* this should not happen, but it's better to be safe */ + if ( edge2->blue_edge ) + { + FT_TRACE5(( "ASSERTION FAILED for edge %d\n", edge2-edges )); + + af_latin2_align_linked_edge( hints, dim, edge2, edge ); + edge->flags |= AF_EDGE_DONE; + continue; + } + + if ( !anchor ) + { + FT_Pos org_len, org_center, cur_len; + FT_Pos cur_pos1, error1, error2, u_off, d_off; + + + org_len = edge2->opos - edge->opos; + cur_len = af_latin2_compute_stem_width( + hints, dim, org_len, + (AF_Edge_Flags)edge->flags, + (AF_Edge_Flags)edge2->flags ); + if ( cur_len <= 64 ) + u_off = d_off = 32; + else + { + u_off = 38; + d_off = 26; + } + + if ( cur_len < 96 ) + { + org_center = edge->opos + ( org_len >> 1 ); + + cur_pos1 = FT_PIX_ROUND( org_center ); + + error1 = org_center - ( cur_pos1 - u_off ); + if ( error1 < 0 ) + error1 = -error1; + + error2 = org_center - ( cur_pos1 + d_off ); + if ( error2 < 0 ) + error2 = -error2; + + if ( error1 < error2 ) + cur_pos1 -= u_off; + else + cur_pos1 += d_off; + + edge->pos = cur_pos1 - cur_len / 2; + edge2->pos = edge->pos + cur_len; + } + else + edge->pos = FT_PIX_ROUND( edge->opos ); + + FT_TRACE5(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)" + " snapped to (%.2f) (%.2f)\n", + edge-edges, edge->opos / 64.0, + edge2-edges, edge2->opos / 64.0, + edge->pos / 64.0, edge2->pos / 64.0 )); + anchor = edge; + + edge->flags |= AF_EDGE_DONE; + + af_latin2_align_linked_edge( hints, dim, edge, edge2 ); + + edge2->flags |= AF_EDGE_DONE; + + anchor_drift = ( (anchor->pos - anchor->opos) + + (edge2->pos - edge2->opos)) >> 1; + + FT_TRACE5(( "DRIFT: %.2f\n", anchor_drift/64.0 )); + } + else + { + FT_Pos org_pos, org_len, org_center, cur_center, cur_len; + FT_Pos org_left, org_right; + + + org_pos = edge->opos + anchor_drift; + org_len = edge2->opos - edge->opos; + org_center = org_pos + ( org_len >> 1 ); + + cur_len = af_latin2_compute_stem_width( + hints, dim, org_len, + (AF_Edge_Flags)edge->flags, + (AF_Edge_Flags)edge2->flags ); + + org_left = org_pos + ((org_len - cur_len) >> 1); + org_right = org_pos + ((org_len + cur_len) >> 1); + + FT_TRACE5(( "ALIGN: left=%.2f right=%.2f ", + org_left / 64.0, org_right / 64.0 )); + cur_center = org_center; + + if ( edge2->flags & AF_EDGE_DONE ) + { + FT_TRACE5(( "\n" )); + edge->pos = edge2->pos - cur_len; + } + else + { + /* we want to compare several displacement, and choose + * the one that increases fitness while minimizing + * distortion as well + */ + FT_Pos displacements[6], scores[6], org, fit, delta; + FT_UInt count = 0; + + /* note: don't even try to fit tiny stems */ + if ( cur_len < 32 ) + { + FT_TRACE5(( "tiny stem\n" )); + goto AlignStem; + } + + /* if the span is within a single pixel, don't touch it */ + if ( FT_PIX_FLOOR(org_left) == FT_PIX_CEIL(org_right) ) + { + FT_TRACE5(( "single pixel stem\n" )); + goto AlignStem; + } + + if (cur_len <= 96) + { + /* we want to avoid the absolute worst case which is + * when the left and right edges of the span each represent + * about 50% of the gray. we'd better want to change this + * to 25/75%, since this is much more pleasant to the eye with + * very acceptable distortion + */ + FT_Pos frac_left = (org_left) & 63; + FT_Pos frac_right = (org_right) & 63; + + if ( frac_left >= 22 && frac_left <= 42 && + frac_right >= 22 && frac_right <= 42 ) + { + org = frac_left; + fit = (org <= 32) ? 16 : 48; + delta = FT_ABS(fit - org); + displacements[count] = fit - org; + scores[count++] = delta; + FT_TRACE5(( "dispA=%.2f (%d) ", (fit - org) / 64.0, delta )); + + org = frac_right; + fit = (org <= 32) ? 16 : 48; + delta = FT_ABS(fit - org); + displacements[count] = fit - org; + scores[count++] = delta; + FT_TRACE5(( "dispB=%.2f (%d) ", (fit - org) / 64.0, delta )); + } + } + + /* snapping the left edge to the grid */ + org = org_left; + fit = FT_PIX_ROUND(org); + delta = FT_ABS(fit - org); + displacements[count] = fit - org; + scores[count++] = delta; + FT_TRACE5(( "dispC=%.2f (%d) ", (fit - org) / 64.0, delta )); + + /* snapping the right edge to the grid */ + org = org_right; + fit = FT_PIX_ROUND(org); + delta = FT_ABS(fit - org); + displacements[count] = fit - org; + scores[count++] = delta; + FT_TRACE5(( "dispD=%.2f (%d) ", (fit - org) / 64.0, delta )); + + /* now find the best displacement */ + { + FT_Pos best_score = scores[0]; + FT_Pos best_disp = displacements[0]; + FT_UInt nn; + + for (nn = 1; nn < count; nn++) + { + if (scores[nn] < best_score) + { + best_score = scores[nn]; + best_disp = displacements[nn]; + } + } + + cur_center = org_center + best_disp; + } + FT_TRACE5(( "\n" )); + } + + AlignStem: + edge->pos = cur_center - (cur_len >> 1); + edge2->pos = edge->pos + cur_len; + + FT_TRACE5(( "STEM1: %d (opos=%.2f) to %d (opos=%.2f)" + " snapped to (%.2f) and (%.2f)," + " org_len=%.2f cur_len=%.2f\n", + edge-edges, edge->opos / 64.0, + edge2-edges, edge2->opos / 64.0, + edge->pos / 64.0, edge2->pos / 64.0, + org_len / 64.0, cur_len / 64.0 )); + + edge->flags |= AF_EDGE_DONE; + edge2->flags |= AF_EDGE_DONE; + + if ( edge > edges && edge->pos < edge[-1].pos ) + { + FT_TRACE5(( "BOUND: %d (pos=%.2f) to (%.2f)\n", + edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 )); + edge->pos = edge[-1].pos; + } + } + } + + /* make sure that lowercase m's maintain their symmetry */ + + /* In general, lowercase m's have six vertical edges if they are sans */ + /* serif, or twelve if they are with serifs. This implementation is */ + /* based on that assumption, and seems to work very well with most */ + /* faces. However, if for a certain face this assumption is not */ + /* true, the m is just rendered like before. In addition, any stem */ + /* correction will only be applied to symmetrical glyphs (even if the */ + /* glyph is not an m), so the potential for unwanted distortion is */ + /* relatively low. */ + + /* We don't handle horizontal edges since we can't easily assure that */ + /* the third (lowest) stem aligns with the base line; it might end up */ + /* one pixel higher or lower. */ + +#if 0 + { + FT_Int n_edges = edge_limit - edges; + + + if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) ) + { + AF_Edge edge1, edge2, edge3; + FT_Pos dist1, dist2, span, delta; + + + if ( n_edges == 6 ) + { + edge1 = edges; + edge2 = edges + 2; + edge3 = edges + 4; + } + else + { + edge1 = edges + 1; + edge2 = edges + 5; + edge3 = edges + 9; + } + + dist1 = edge2->opos - edge1->opos; + dist2 = edge3->opos - edge2->opos; + + span = dist1 - dist2; + if ( span < 0 ) + span = -span; + + if ( span < 8 ) + { + delta = edge3->pos - ( 2 * edge2->pos - edge1->pos ); + edge3->pos -= delta; + if ( edge3->link ) + edge3->link->pos -= delta; + + /* move the serifs along with the stem */ + if ( n_edges == 12 ) + { + ( edges + 8 )->pos -= delta; + ( edges + 11 )->pos -= delta; + } + + edge3->flags |= AF_EDGE_DONE; + if ( edge3->link ) + edge3->link->flags |= AF_EDGE_DONE; + } + } + } +#endif + + if ( has_serifs || !anchor ) + { + /* + * now hint the remaining edges (serifs and single) in order + * to complete our processing + */ + for ( edge = edges; edge < edge_limit; edge++ ) + { + FT_Pos delta; + + + if ( edge->flags & AF_EDGE_DONE ) + continue; + + delta = 1000; + + if ( edge->serif ) + { + delta = edge->serif->opos - edge->opos; + if ( delta < 0 ) + delta = -delta; + } + + if ( delta < 64 + 16 ) + { + af_latin2_align_serif_edge( hints, edge->serif, edge ); + FT_TRACE5(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)" + " aligned to (%.2f)\n", + edge-edges, edge->opos / 64.0, + edge->serif - edges, edge->serif->opos / 64.0, + edge->pos / 64.0 )); + } + else if ( !anchor ) + { + FT_TRACE5(( "SERIF_ANCHOR: edge %d (opos=%.2f)" + " snapped to (%.2f)\n", + edge-edges, edge->opos / 64.0, edge->pos / 64.0 )); + edge->pos = FT_PIX_ROUND( edge->opos ); + anchor = edge; + } + else + { + AF_Edge before, after; + + + for ( before = edge - 1; before >= edges; before-- ) + if ( before->flags & AF_EDGE_DONE ) + break; + + for ( after = edge + 1; after < edge_limit; after++ ) + if ( after->flags & AF_EDGE_DONE ) + break; + + if ( before >= edges && before < edge && + after < edge_limit && after > edge ) + { + if ( after->opos == before->opos ) + edge->pos = before->pos; + else + edge->pos = before->pos + + FT_MulDiv( edge->opos - before->opos, + after->pos - before->pos, + after->opos - before->opos ); + FT_TRACE5(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f)" + " from %d (opos=%.2f)\n", + edge-edges, edge->opos / 64.0, edge->pos / 64.0, + before - edges, before->opos / 64.0 )); + } + else + { + edge->pos = anchor->pos + + ( ( edge->opos - anchor->opos + 16 ) & ~31 ); + + FT_TRACE5(( "SERIF_LINK2: edge %d (opos=%.2f)" + " snapped to (%.2f)\n", + edge-edges, edge->opos / 64.0, edge->pos / 64.0 )); + } + } + + edge->flags |= AF_EDGE_DONE; + + if ( edge > edges && edge->pos < edge[-1].pos ) + edge->pos = edge[-1].pos; + + if ( edge + 1 < edge_limit && + edge[1].flags & AF_EDGE_DONE && + edge->pos > edge[1].pos ) + edge->pos = edge[1].pos; + } + } + } + + + static FT_Error + af_latin2_hints_apply( AF_GlyphHints hints, + FT_Outline* outline, + AF_LatinMetrics metrics ) + { + FT_Error error; + int dim; + + + error = af_glyph_hints_reload( hints, outline ); + if ( error ) + goto Exit; + + /* analyze glyph outline */ +#ifdef AF_CONFIG_OPTION_USE_WARPER + if ( metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT || + AF_HINTS_DO_HORIZONTAL( hints ) ) +#else + if ( AF_HINTS_DO_HORIZONTAL( hints ) ) +#endif + { + error = af_latin2_hints_detect_features( hints, AF_DIMENSION_HORZ ); + if ( error ) + goto Exit; + } + + if ( AF_HINTS_DO_VERTICAL( hints ) ) + { + error = af_latin2_hints_detect_features( hints, AF_DIMENSION_VERT ); + if ( error ) + goto Exit; + + af_latin2_hints_compute_blue_edges( hints, metrics ); + } + + /* grid-fit the outline */ + for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) + { +#ifdef AF_CONFIG_OPTION_USE_WARPER + if ( ( dim == AF_DIMENSION_HORZ && + metrics->root.scaler.render_mode == FT_RENDER_MODE_LIGHT ) ) + { + AF_WarperRec warper; + FT_Fixed scale; + FT_Pos delta; + + + af_warper_compute( &warper, hints, dim, &scale, &delta ); + af_glyph_hints_scale_dim( hints, dim, scale, delta ); + continue; + } +#endif + + if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) || + ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) ) + { + af_latin2_hint_edges( hints, (AF_Dimension)dim ); + af_glyph_hints_align_edge_points( hints, (AF_Dimension)dim ); + af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim ); + af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim ); + } + } + af_glyph_hints_save( hints, outline ); + + Exit: + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** L A T I N S C R I P T C L A S S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + static const AF_Script_UniRangeRec af_latin2_uniranges[] = + { + AF_UNIRANGE_REC( 32UL, 127UL ), /* TODO: Add new Unicode ranges here! */ + AF_UNIRANGE_REC( 160UL, 255UL ), + AF_UNIRANGE_REC( 0UL, 0UL ) + }; + + + AF_DEFINE_SCRIPT_CLASS( af_latin2_script_class, + AF_SCRIPT_LATIN2, + af_latin2_uniranges, + + sizeof ( AF_LatinMetricsRec ), + + (AF_Script_InitMetricsFunc) af_latin2_metrics_init, + (AF_Script_ScaleMetricsFunc)af_latin2_metrics_scale, + (AF_Script_DoneMetricsFunc) NULL, + + (AF_Script_InitHintsFunc) af_latin2_hints_init, + (AF_Script_ApplyHintsFunc) af_latin2_hints_apply + ) + + +/* END */ diff --git a/src/autofit/aflatin2.h b/src/autofit/aflatin2.h new file mode 100644 index 0000000..925c621 --- /dev/null +++ b/src/autofit/aflatin2.h @@ -0,0 +1,39 @@ +/***************************************************************************/ +/* */ +/* aflatin2.h */ +/* */ +/* Auto-fitter hinting routines for latin script (specification). */ +/* */ +/* Copyright 2003, 2004, 2005, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFLATIN2_H__ +#define __AFLATIN2_H__ + +#include "afhints.h" + + +FT_BEGIN_HEADER + + + /* the latin-specific script class */ + + AF_DECLARE_SCRIPT_CLASS(af_latin2_script_class) + +/* */ + +FT_END_HEADER + +#endif /* __AFLATIN_H__ */ + + +/* END */ diff --git a/src/autofit/afloader.c b/src/autofit/afloader.c new file mode 100644 index 0000000..34ef9d8 --- /dev/null +++ b/src/autofit/afloader.c @@ -0,0 +1,554 @@ +/***************************************************************************/ +/* */ +/* afloader.c */ +/* */ +/* Auto-fitter glyph loading routines (body). */ +/* */ +/* Copyright 2003-2009, 2011-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "afloader.h" +#include "afhints.h" +#include "afglobal.h" +#include "aferrors.h" + + + /* Initialize glyph loader. */ + + FT_LOCAL_DEF( FT_Error ) + af_loader_init( AF_Loader loader, + FT_Memory memory ) + { + FT_ZERO( loader ); + + af_glyph_hints_init( &loader->hints, memory ); +#ifdef FT_DEBUG_AUTOFIT + _af_debug_hints = &loader->hints; +#endif + return FT_GlyphLoader_New( memory, &loader->gloader ); + } + + + /* Reset glyph loader and compute globals if necessary. */ + + FT_LOCAL_DEF( FT_Error ) + af_loader_reset( AF_Loader loader, + FT_Face face ) + { + FT_Error error = AF_Err_Ok; + + + loader->face = face; + loader->globals = (AF_FaceGlobals)face->autohint.data; + + FT_GlyphLoader_Rewind( loader->gloader ); + + if ( loader->globals == NULL ) + { + error = af_face_globals_new( face, &loader->globals ); + if ( !error ) + { + face->autohint.data = + (FT_Pointer)loader->globals; + face->autohint.finalizer = + (FT_Generic_Finalizer)af_face_globals_free; + } + } + + return error; + } + + + /* Finalize glyph loader. */ + + FT_LOCAL_DEF( void ) + af_loader_done( AF_Loader loader ) + { + af_glyph_hints_done( &loader->hints ); + + loader->face = NULL; + loader->globals = NULL; + +#ifdef FT_DEBUG_AUTOFIT + _af_debug_hints = NULL; +#endif + FT_GlyphLoader_Done( loader->gloader ); + loader->gloader = NULL; + } + + + /* Load a single glyph component. This routine calls itself */ + /* recursively, if necessary, and does the main work of */ + /* `af_loader_load_glyph.' */ + + static FT_Error + af_loader_load_g( AF_Loader loader, + AF_Scaler scaler, + FT_UInt glyph_index, + FT_Int32 load_flags, + FT_UInt depth ) + { + FT_Error error; + FT_Face face = loader->face; + FT_GlyphLoader gloader = loader->gloader; + AF_ScriptMetrics metrics = loader->metrics; + AF_GlyphHints hints = &loader->hints; + FT_GlyphSlot slot = face->glyph; + FT_Slot_Internal internal = slot->internal; + + + error = FT_Load_Glyph( face, glyph_index, load_flags ); + if ( error ) + goto Exit; + + loader->transformed = internal->glyph_transformed; + if ( loader->transformed ) + { + FT_Matrix inverse; + + + loader->trans_matrix = internal->glyph_matrix; + loader->trans_delta = internal->glyph_delta; + + inverse = loader->trans_matrix; + FT_Matrix_Invert( &inverse ); + FT_Vector_Transform( &loader->trans_delta, &inverse ); + } + + /* set linear metrics */ + slot->linearHoriAdvance = slot->metrics.horiAdvance; + slot->linearVertAdvance = slot->metrics.vertAdvance; + + switch ( slot->format ) + { + case FT_GLYPH_FORMAT_OUTLINE: + /* translate the loaded glyph when an internal transform is needed */ + if ( loader->transformed ) + FT_Outline_Translate( &slot->outline, + loader->trans_delta.x, + loader->trans_delta.y ); + + /* copy the outline points in the loader's current */ + /* extra points which is used to keep original glyph coordinates */ + error = FT_GLYPHLOADER_CHECK_POINTS( gloader, + slot->outline.n_points + 4, + slot->outline.n_contours ); + if ( error ) + goto Exit; + + FT_ARRAY_COPY( gloader->current.outline.points, + slot->outline.points, + slot->outline.n_points ); + + FT_ARRAY_COPY( gloader->current.outline.contours, + slot->outline.contours, + slot->outline.n_contours ); + + FT_ARRAY_COPY( gloader->current.outline.tags, + slot->outline.tags, + slot->outline.n_points ); + + gloader->current.outline.n_points = slot->outline.n_points; + gloader->current.outline.n_contours = slot->outline.n_contours; + + /* compute original horizontal phantom points (and ignore */ + /* vertical ones) */ + loader->pp1.x = hints->x_delta; + loader->pp1.y = hints->y_delta; + loader->pp2.x = FT_MulFix( slot->metrics.horiAdvance, + hints->x_scale ) + hints->x_delta; + loader->pp2.y = hints->y_delta; + + /* be sure to check for spacing glyphs */ + if ( slot->outline.n_points == 0 ) + goto Hint_Metrics; + + /* now load the slot image into the auto-outline and run the */ + /* automatic hinting process */ + if ( metrics->clazz->script_hints_apply ) + metrics->clazz->script_hints_apply( hints, + &gloader->current.outline, + metrics ); + + /* we now need to adjust the metrics according to the change in */ + /* width/positioning that occurred during the hinting process */ + if ( scaler->render_mode != FT_RENDER_MODE_LIGHT ) + { + FT_Pos old_rsb, old_lsb, new_lsb; + FT_Pos pp1x_uh, pp2x_uh; + AF_AxisHints axis = &hints->axis[AF_DIMENSION_HORZ]; + AF_Edge edge1 = axis->edges; /* leftmost edge */ + AF_Edge edge2 = edge1 + + axis->num_edges - 1; /* rightmost edge */ + + + if ( axis->num_edges > 1 && AF_HINTS_DO_ADVANCE( hints ) ) + { + old_rsb = loader->pp2.x - edge2->opos; + old_lsb = edge1->opos; + new_lsb = edge1->pos; + + /* remember unhinted values to later account */ + /* for rounding errors */ + + pp1x_uh = new_lsb - old_lsb; + pp2x_uh = edge2->pos + old_rsb; + + /* prefer too much space over too little space */ + /* for very small sizes */ + + if ( old_lsb < 24 ) + pp1x_uh -= 8; + + if ( old_rsb < 24 ) + pp2x_uh += 8; + + loader->pp1.x = FT_PIX_ROUND( pp1x_uh ); + loader->pp2.x = FT_PIX_ROUND( pp2x_uh ); + + if ( loader->pp1.x >= new_lsb && old_lsb > 0 ) + loader->pp1.x -= 64; + + if ( loader->pp2.x <= edge2->pos && old_rsb > 0 ) + loader->pp2.x += 64; + + slot->lsb_delta = loader->pp1.x - pp1x_uh; + slot->rsb_delta = loader->pp2.x - pp2x_uh; + } + else + { + FT_Pos pp1x = loader->pp1.x; + FT_Pos pp2x = loader->pp2.x; + + + loader->pp1.x = FT_PIX_ROUND( pp1x ); + loader->pp2.x = FT_PIX_ROUND( pp2x ); + + slot->lsb_delta = loader->pp1.x - pp1x; + slot->rsb_delta = loader->pp2.x - pp2x; + } + } + else + { + FT_Pos pp1x = loader->pp1.x; + FT_Pos pp2x = loader->pp2.x; + + + loader->pp1.x = FT_PIX_ROUND( pp1x + hints->xmin_delta ); + loader->pp2.x = FT_PIX_ROUND( pp2x + hints->xmax_delta ); + + slot->lsb_delta = loader->pp1.x - pp1x; + slot->rsb_delta = loader->pp2.x - pp2x; + } + + /* good, we simply add the glyph to our loader's base */ + FT_GlyphLoader_Add( gloader ); + break; + + case FT_GLYPH_FORMAT_COMPOSITE: + { + FT_UInt nn, num_subglyphs = slot->num_subglyphs; + FT_UInt num_base_subgs, start_point; + FT_SubGlyph subglyph; + + + start_point = gloader->base.outline.n_points; + + /* first of all, copy the subglyph descriptors in the glyph loader */ + error = FT_GlyphLoader_CheckSubGlyphs( gloader, num_subglyphs ); + if ( error ) + goto Exit; + + FT_ARRAY_COPY( gloader->current.subglyphs, + slot->subglyphs, + num_subglyphs ); + + gloader->current.num_subglyphs = num_subglyphs; + num_base_subgs = gloader->base.num_subglyphs; + + /* now read each subglyph independently */ + for ( nn = 0; nn < num_subglyphs; nn++ ) + { + FT_Vector pp1, pp2; + FT_Pos x, y; + FT_UInt num_points, num_new_points, num_base_points; + + + /* gloader.current.subglyphs can change during glyph loading due */ + /* to re-allocation -- we must recompute the current subglyph on */ + /* each iteration */ + subglyph = gloader->base.subglyphs + num_base_subgs + nn; + + pp1 = loader->pp1; + pp2 = loader->pp2; + + num_base_points = gloader->base.outline.n_points; + + error = af_loader_load_g( loader, scaler, subglyph->index, + load_flags, depth + 1 ); + if ( error ) + goto Exit; + + /* recompute subglyph pointer */ + subglyph = gloader->base.subglyphs + num_base_subgs + nn; + + if ( subglyph->flags & FT_SUBGLYPH_FLAG_USE_MY_METRICS ) + { + pp1 = loader->pp1; + pp2 = loader->pp2; + } + else + { + loader->pp1 = pp1; + loader->pp2 = pp2; + } + + num_points = gloader->base.outline.n_points; + num_new_points = num_points - num_base_points; + + /* now perform the transformation required for this subglyph */ + + if ( subglyph->flags & ( FT_SUBGLYPH_FLAG_SCALE | + FT_SUBGLYPH_FLAG_XY_SCALE | + FT_SUBGLYPH_FLAG_2X2 ) ) + { + FT_Vector* cur = gloader->base.outline.points + + num_base_points; + FT_Vector* limit = cur + num_new_points; + + + for ( ; cur < limit; cur++ ) + FT_Vector_Transform( cur, &subglyph->transform ); + } + + /* apply offset */ + + if ( !( subglyph->flags & FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES ) ) + { + FT_Int k = subglyph->arg1; + FT_UInt l = subglyph->arg2; + FT_Vector* p1; + FT_Vector* p2; + + + if ( start_point + k >= num_base_points || + l >= (FT_UInt)num_new_points ) + { + error = AF_Err_Invalid_Composite; + goto Exit; + } + + l += num_base_points; + + /* for now, only use the current point coordinates; */ + /* we may consider another approach in the near future */ + p1 = gloader->base.outline.points + start_point + k; + p2 = gloader->base.outline.points + start_point + l; + + x = p1->x - p2->x; + y = p1->y - p2->y; + } + else + { + x = FT_MulFix( subglyph->arg1, hints->x_scale ) + hints->x_delta; + y = FT_MulFix( subglyph->arg2, hints->y_scale ) + hints->y_delta; + + x = FT_PIX_ROUND( x ); + y = FT_PIX_ROUND( y ); + } + + { + FT_Outline dummy = gloader->base.outline; + + + dummy.points += num_base_points; + dummy.n_points = (short)num_new_points; + + FT_Outline_Translate( &dummy, x, y ); + } + } + } + break; + + default: + /* we don't support other formats (yet?) */ + error = AF_Err_Unimplemented_Feature; + } + + Hint_Metrics: + if ( depth == 0 ) + { + FT_BBox bbox; + FT_Vector vvector; + + + vvector.x = slot->metrics.vertBearingX - slot->metrics.horiBearingX; + vvector.y = slot->metrics.vertBearingY - slot->metrics.horiBearingY; + vvector.x = FT_MulFix( vvector.x, metrics->scaler.x_scale ); + vvector.y = FT_MulFix( vvector.y, metrics->scaler.y_scale ); + + /* transform the hinted outline if needed */ + if ( loader->transformed ) + { + FT_Outline_Transform( &gloader->base.outline, &loader->trans_matrix ); + FT_Vector_Transform( &vvector, &loader->trans_matrix ); + } +#if 1 + /* we must translate our final outline by -pp1.x and compute */ + /* the new metrics */ + if ( loader->pp1.x ) + FT_Outline_Translate( &gloader->base.outline, -loader->pp1.x, 0 ); +#endif + FT_Outline_Get_CBox( &gloader->base.outline, &bbox ); + + bbox.xMin = FT_PIX_FLOOR( bbox.xMin ); + bbox.yMin = FT_PIX_FLOOR( bbox.yMin ); + bbox.xMax = FT_PIX_CEIL( bbox.xMax ); + bbox.yMax = FT_PIX_CEIL( bbox.yMax ); + + slot->metrics.width = bbox.xMax - bbox.xMin; + slot->metrics.height = bbox.yMax - bbox.yMin; + slot->metrics.horiBearingX = bbox.xMin; + slot->metrics.horiBearingY = bbox.yMax; + + slot->metrics.vertBearingX = FT_PIX_FLOOR( bbox.xMin + vvector.x ); + slot->metrics.vertBearingY = FT_PIX_FLOOR( bbox.yMax + vvector.y ); + + /* for mono-width fonts (like Andale, Courier, etc.) we need */ + /* to keep the original rounded advance width; ditto for */ + /* digits if all have the same advance width */ +#if 0 + if ( !FT_IS_FIXED_WIDTH( slot->face ) ) + slot->metrics.horiAdvance = loader->pp2.x - loader->pp1.x; + else + slot->metrics.horiAdvance = FT_MulFix( slot->metrics.horiAdvance, + x_scale ); +#else + if ( scaler->render_mode != FT_RENDER_MODE_LIGHT && + ( FT_IS_FIXED_WIDTH( slot->face ) || + ( af_face_globals_is_digit( loader->globals, glyph_index ) && + metrics->digits_have_same_width ) ) ) + { + slot->metrics.horiAdvance = FT_MulFix( slot->metrics.horiAdvance, + metrics->scaler.x_scale ); + + /* Set delta values to 0. Otherwise code that uses them is */ + /* going to ruin the fixed advance width. */ + slot->lsb_delta = 0; + slot->rsb_delta = 0; + } + else + { + /* non-spacing glyphs must stay as-is */ + if ( slot->metrics.horiAdvance ) + slot->metrics.horiAdvance = loader->pp2.x - loader->pp1.x; + } +#endif + + slot->metrics.vertAdvance = FT_MulFix( slot->metrics.vertAdvance, + metrics->scaler.y_scale ); + + slot->metrics.horiAdvance = FT_PIX_ROUND( slot->metrics.horiAdvance ); + slot->metrics.vertAdvance = FT_PIX_ROUND( slot->metrics.vertAdvance ); + + /* now copy outline into glyph slot */ + FT_GlyphLoader_Rewind( internal->loader ); + error = FT_GlyphLoader_CopyPoints( internal->loader, gloader ); + if ( error ) + goto Exit; + + /* reassign all outline fields except flags to protect them */ + slot->outline.n_contours = internal->loader->base.outline.n_contours; + slot->outline.n_points = internal->loader->base.outline.n_points; + slot->outline.points = internal->loader->base.outline.points; + slot->outline.tags = internal->loader->base.outline.tags; + slot->outline.contours = internal->loader->base.outline.contours; + + slot->format = FT_GLYPH_FORMAT_OUTLINE; + } + + Exit: + return error; + } + + + /* Load a glyph. */ + + FT_LOCAL_DEF( FT_Error ) + af_loader_load_glyph( AF_Loader loader, + FT_Face face, + FT_UInt gindex, + FT_Int32 load_flags ) + { + FT_Error error; + FT_Size size = face->size; + AF_ScalerRec scaler; + + + if ( !size ) + return AF_Err_Invalid_Argument; + + FT_ZERO( &scaler ); + + scaler.face = face; + scaler.x_scale = size->metrics.x_scale; + scaler.x_delta = 0; /* XXX: TODO: add support for sub-pixel hinting */ + scaler.y_scale = size->metrics.y_scale; + scaler.y_delta = 0; /* XXX: TODO: add support for sub-pixel hinting */ + + scaler.render_mode = FT_LOAD_TARGET_MODE( load_flags ); + scaler.flags = 0; /* XXX: fix this */ + + error = af_loader_reset( loader, face ); + if ( !error ) + { + AF_ScriptMetrics metrics; + FT_UInt options = 0; + + +#ifdef FT_OPTION_AUTOFIT2 + /* XXX: undocumented hook to activate the latin2 hinter */ + if ( load_flags & ( 1UL << 20 ) ) + options = 2; +#endif + + error = af_face_globals_get_metrics( loader->globals, gindex, + options, &metrics ); + if ( !error ) + { + loader->metrics = metrics; + + if ( metrics->clazz->script_metrics_scale ) + metrics->clazz->script_metrics_scale( metrics, &scaler ); + else + metrics->scaler = scaler; + + load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_IGNORE_TRANSFORM; + load_flags &= ~FT_LOAD_RENDER; + + if ( metrics->clazz->script_hints_init ) + { + error = metrics->clazz->script_hints_init( &loader->hints, + metrics ); + if ( error ) + goto Exit; + } + + error = af_loader_load_g( loader, &scaler, gindex, load_flags, 0 ); + } + } + Exit: + return error; + } + + +/* END */ diff --git a/src/autofit/afloader.h b/src/autofit/afloader.h new file mode 100644 index 0000000..eec0e92 --- /dev/null +++ b/src/autofit/afloader.h @@ -0,0 +1,73 @@ +/***************************************************************************/ +/* */ +/* afloader.h */ +/* */ +/* Auto-fitter glyph loading routines (specification). */ +/* */ +/* Copyright 2003-2005, 2011-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFLOADER_H__ +#define __AFLOADER_H__ + +#include "afhints.h" +#include "afglobal.h" + + +FT_BEGIN_HEADER + + typedef struct AF_LoaderRec_ + { + FT_Face face; /* current face */ + AF_FaceGlobals globals; /* current face globals */ + FT_GlyphLoader gloader; /* glyph loader */ + AF_GlyphHintsRec hints; + AF_ScriptMetrics metrics; + FT_Bool transformed; + FT_Matrix trans_matrix; + FT_Vector trans_delta; + FT_Vector pp1; + FT_Vector pp2; + /* we don't handle vertical phantom points */ + + } AF_LoaderRec, *AF_Loader; + + + FT_LOCAL( FT_Error ) + af_loader_init( AF_Loader loader, + FT_Memory memory ); + + + FT_LOCAL( FT_Error ) + af_loader_reset( AF_Loader loader, + FT_Face face ); + + + FT_LOCAL( void ) + af_loader_done( AF_Loader loader ); + + + FT_LOCAL( FT_Error ) + af_loader_load_glyph( AF_Loader loader, + FT_Face face, + FT_UInt gindex, + FT_Int32 load_flags ); + +/* */ + + +FT_END_HEADER + +#endif /* __AFLOADER_H__ */ + + +/* END */ diff --git a/src/autofit/afmodule.c b/src/autofit/afmodule.c new file mode 100644 index 0000000..20b6218 --- /dev/null +++ b/src/autofit/afmodule.c @@ -0,0 +1,93 @@ +/***************************************************************************/ +/* */ +/* afmodule.c */ +/* */ +/* Auto-fitter module implementation (body). */ +/* */ +/* Copyright 2003-2006, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "afmodule.h" +#include "afloader.h" +#include "afpic.h" + +#ifdef FT_DEBUG_AUTOFIT + int _af_debug_disable_horz_hints; + int _af_debug_disable_vert_hints; + int _af_debug_disable_blue_hints; + void* _af_debug_hints; +#endif + +#include FT_INTERNAL_OBJECTS_H + + + typedef struct FT_AutofitterRec_ + { + FT_ModuleRec root; + AF_LoaderRec loader[1]; + + } FT_AutofitterRec, *FT_Autofitter; + + + FT_CALLBACK_DEF( FT_Error ) + af_autofitter_init( FT_Autofitter module ) + { + return af_loader_init( module->loader, module->root.library->memory ); + } + + + FT_CALLBACK_DEF( void ) + af_autofitter_done( FT_Autofitter module ) + { + af_loader_done( module->loader ); + } + + + FT_CALLBACK_DEF( FT_Error ) + af_autofitter_load_glyph( FT_Autofitter module, + FT_GlyphSlot slot, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FT_UNUSED( size ); + + return af_loader_load_glyph( module->loader, slot->face, + glyph_index, load_flags ); + } + + + FT_DEFINE_AUTOHINTER_SERVICE( + af_autofitter_service, + NULL, + NULL, + NULL, + (FT_AutoHinter_GlyphLoadFunc)af_autofitter_load_glyph ) + + FT_DEFINE_MODULE( + autofit_module_class, + + FT_MODULE_HINTER, + sizeof ( FT_AutofitterRec ), + + "autofitter", + 0x10000L, /* version 1.0 of the autofitter */ + 0x20000L, /* requires FreeType 2.0 or above */ + + (const void*)&AF_AF_AUTOFITTER_SERVICE_GET, + + (FT_Module_Constructor)af_autofitter_init, + (FT_Module_Destructor) af_autofitter_done, + (FT_Module_Requester) NULL ) + + +/* END */ diff --git a/src/autofit/afmodule.h b/src/autofit/afmodule.h new file mode 100644 index 0000000..d979239 --- /dev/null +++ b/src/autofit/afmodule.h @@ -0,0 +1,37 @@ +/***************************************************************************/ +/* */ +/* afmodule.h */ +/* */ +/* Auto-fitter module implementation (specification). */ +/* */ +/* Copyright 2003, 2004, 2005 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFMODULE_H__ +#define __AFMODULE_H__ + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_MODULE_H + + +FT_BEGIN_HEADER + +FT_DECLARE_MODULE(autofit_module_class) + + +FT_END_HEADER + +#endif /* __AFMODULE_H__ */ + + +/* END */ diff --git a/src/autofit/afpic.c b/src/autofit/afpic.c new file mode 100644 index 0000000..87074af --- /dev/null +++ b/src/autofit/afpic.c @@ -0,0 +1,110 @@ +/***************************************************************************/ +/* */ +/* afpic.c */ +/* */ +/* The FreeType position independent code services for autofit module. */ +/* */ +/* Copyright 2009, 2010, 2011 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "afpic.h" +#include "aferrors.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from afmodule.c */ + void FT_Init_Class_af_autofitter_service( + FT_Library library, + FT_AutoHinter_ServiceRec* clazz ); + + /* forward declaration of PIC init functions from script classes */ +#include "aflatin.h" +#ifdef FT_OPTION_AUTOFIT2 +#include "aflatin2.h" +#endif +#include "afcjk.h" +#include "afdummy.h" +#include "afindic.h" + + void + autofit_module_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + + + if ( pic_container->autofit ) + { + FT_FREE( pic_container->autofit ); + pic_container->autofit = NULL; + } + } + + + FT_Error + autofit_module_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_UInt ss; + FT_Error error = AF_Err_Ok; + AFModulePIC* container; + FT_Memory memory = library->memory; + + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->autofit = container; + + /* initialize pointer table - */ + /* this is how the module usually expects this data */ + for ( ss = 0 ; ss < AF_SCRIPT_CLASSES_REC_COUNT ; ss++ ) + { + container->af_script_classes[ss] = + &container->af_script_classes_rec[ss]; + } + container->af_script_classes[AF_SCRIPT_CLASSES_COUNT - 1] = NULL; + + /* add call to initialization function when you add new scripts */ + ss = 0; + FT_Init_Class_af_dummy_script_class( + &container->af_script_classes_rec[ss++] ); +#ifdef FT_OPTION_AUTOFIT2 + FT_Init_Class_af_latin2_script_class( + &container->af_script_classes_rec[ss++] ); +#endif + FT_Init_Class_af_latin_script_class( + &container->af_script_classes_rec[ss++] ); + FT_Init_Class_af_cjk_script_class( + &container->af_script_classes_rec[ss++] ); + FT_Init_Class_af_indic_script_class( + &container->af_script_classes_rec[ss++] ); + + FT_Init_Class_af_autofitter_service( + library, &container->af_autofitter_service ); + +/* Exit: */ + + if ( error ) + autofit_module_class_pic_free( library ); + return error; + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/src/autofit/afpic.h b/src/autofit/afpic.h new file mode 100644 index 0000000..21b0ff9 --- /dev/null +++ b/src/autofit/afpic.h @@ -0,0 +1,76 @@ +/***************************************************************************/ +/* */ +/* afpic.h */ +/* */ +/* The FreeType position independent code services for autofit module. */ +/* */ +/* Copyright 2009, 2011 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFPIC_H__ +#define __AFPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC + +#define AF_SCRIPT_CLASSES_GET af_script_classes +#define AF_AF_AUTOFITTER_SERVICE_GET af_autofitter_service + +#else /* FT_CONFIG_OPTION_PIC */ + +#include "aftypes.h" + + /* increase these when you add new scripts, */ + /* and update autofit_module_class_pic_init */ +#ifdef FT_OPTION_AUTOFIT2 +#define AF_SCRIPT_CLASSES_COUNT 6 +#else +#define AF_SCRIPT_CLASSES_COUNT 5 +#endif +#define AF_SCRIPT_CLASSES_REC_COUNT ( AF_SCRIPT_CLASSES_COUNT - 1 ) + + typedef struct AFModulePIC_ + { + AF_ScriptClass af_script_classes[AF_SCRIPT_CLASSES_COUNT]; + AF_ScriptClassRec af_script_classes_rec[AF_SCRIPT_CLASSES_REC_COUNT]; + FT_AutoHinter_ServiceRec af_autofitter_service; + + } AFModulePIC; + +#define GET_PIC( lib ) \ + ( (AFModulePIC*)((lib)->pic_container.autofit) ) +#define AF_SCRIPT_CLASSES_GET \ + ( GET_PIC( FT_FACE_LIBRARY(globals->face) )->af_script_classes ) +#define AF_AF_AUTOFITTER_SERVICE_GET \ + ( GET_PIC( library )->af_autofitter_service ) + + /* see afpic.c for the implementation */ + void + autofit_module_class_pic_free( FT_Library library ); + + FT_Error + autofit_module_class_pic_init( FT_Library library ); + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __AFPIC_H__ */ + + +/* END */ diff --git a/src/autofit/aftypes.h b/src/autofit/aftypes.h new file mode 100644 index 0000000..21e442c --- /dev/null +++ b/src/autofit/aftypes.h @@ -0,0 +1,370 @@ +/***************************************************************************/ +/* */ +/* aftypes.h */ +/* */ +/* Auto-fitter types (specification only). */ +/* */ +/* Copyright 2003-2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /************************************************************************* + * + * The auto-fitter is a complete rewrite of the old auto-hinter. + * Its main feature is the ability to differentiate between different + * scripts in order to apply language-specific rules. + * + * The code has also been compartmentized into several entities that + * should make algorithmic experimentation easier than with the old + * code. + * + * Finally, we get rid of the Catharon license, since this code is + * released under the FreeType one. + * + *************************************************************************/ + + +#ifndef __AFTYPES_H__ +#define __AFTYPES_H__ + +#include <ft2build.h> + +#include FT_FREETYPE_H +#include FT_OUTLINE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H + + +FT_BEGIN_HEADER + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** D E B U G G I N G *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#ifdef FT_DEBUG_AUTOFIT + +#include FT_CONFIG_STANDARD_LIBRARY_H + +extern int _af_debug_disable_horz_hints; +extern int _af_debug_disable_vert_hints; +extern int _af_debug_disable_blue_hints; +extern void* _af_debug_hints; + +#endif /* FT_DEBUG_AUTOFIT */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** U T I L I T Y S T U F F *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct AF_WidthRec_ + { + FT_Pos org; /* original position/width in font units */ + FT_Pos cur; /* current/scaled position/width in device sub-pixels */ + FT_Pos fit; /* current/fitted position/width in device sub-pixels */ + + } AF_WidthRec, *AF_Width; + + + FT_LOCAL( void ) + af_sort_pos( FT_UInt count, + FT_Pos* table ); + + FT_LOCAL( void ) + af_sort_widths( FT_UInt count, + AF_Width widths ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** A N G L E T Y P E S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * The auto-fitter doesn't need a very high angular accuracy; + * this allows us to speed up some computations considerably with a + * light Cordic algorithm (see afangles.c). + */ + + typedef FT_Int AF_Angle; + + +#define AF_ANGLE_PI 256 +#define AF_ANGLE_2PI ( AF_ANGLE_PI * 2 ) +#define AF_ANGLE_PI2 ( AF_ANGLE_PI / 2 ) +#define AF_ANGLE_PI4 ( AF_ANGLE_PI / 4 ) + + +#if 0 + /* + * compute the angle of a given 2-D vector + */ + FT_LOCAL( AF_Angle ) + af_angle_atan( FT_Pos dx, + FT_Pos dy ); + + + /* + * compute `angle2 - angle1'; the result is always within + * the range [-AF_ANGLE_PI .. AF_ANGLE_PI - 1] + */ + FT_LOCAL( AF_Angle ) + af_angle_diff( AF_Angle angle1, + AF_Angle angle2 ); +#endif /* 0 */ + + +#define AF_ANGLE_DIFF( result, angle1, angle2 ) \ + FT_BEGIN_STMNT \ + AF_Angle _delta = (angle2) - (angle1); \ + \ + \ + _delta %= AF_ANGLE_2PI; \ + if ( _delta < 0 ) \ + _delta += AF_ANGLE_2PI; \ + \ + if ( _delta > AF_ANGLE_PI ) \ + _delta -= AF_ANGLE_2PI; \ + \ + result = _delta; \ + FT_END_STMNT + + + /* opaque handle to glyph-specific hints -- see `afhints.h' for more + * details + */ + typedef struct AF_GlyphHintsRec_* AF_GlyphHints; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** S C A L E R S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * A scaler models the target pixel device that will receive the + * auto-hinted glyph image. + */ + + typedef enum AF_ScalerFlags_ + { + AF_SCALER_FLAG_NO_HORIZONTAL = 1, /* disable horizontal hinting */ + AF_SCALER_FLAG_NO_VERTICAL = 2, /* disable vertical hinting */ + AF_SCALER_FLAG_NO_ADVANCE = 4 /* disable advance hinting */ + + } AF_ScalerFlags; + + + typedef struct AF_ScalerRec_ + { + FT_Face face; /* source font face */ + FT_Fixed x_scale; /* from font units to 1/64th device pixels */ + FT_Fixed y_scale; /* from font units to 1/64th device pixels */ + FT_Pos x_delta; /* in 1/64th device pixels */ + FT_Pos y_delta; /* in 1/64th device pixels */ + FT_Render_Mode render_mode; /* monochrome, anti-aliased, LCD, etc. */ + FT_UInt32 flags; /* additional control flags, see above */ + + } AF_ScalerRec, *AF_Scaler; + + +#define AF_SCALER_EQUAL_SCALES( a, b ) \ + ( (a)->x_scale == (b)->x_scale && \ + (a)->y_scale == (b)->y_scale && \ + (a)->x_delta == (b)->x_delta && \ + (a)->y_delta == (b)->y_delta ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** S C R I P T S *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * The list of known scripts. Each different script corresponds to the + * following information: + * + * - A set of Unicode ranges to test whether the face supports the + * script. + * + * - A specific global analyzer that will compute global metrics + * specific to the script. + * + * - A specific glyph analyzer that will compute segments and + * edges for each glyph covered by the script. + * + * - A specific grid-fitting algorithm that will distort the + * scaled glyph outline according to the results of the glyph + * analyzer. + * + * Note that a given analyzer and/or grid-fitting algorithm can be + * used by more than one script. + */ + + typedef enum AF_Script_ + { + AF_SCRIPT_NONE = 0, + AF_SCRIPT_LATIN = 1, + AF_SCRIPT_CJK = 2, + AF_SCRIPT_INDIC = 3, +#ifdef FT_OPTION_AUTOFIT2 + AF_SCRIPT_LATIN2, +#endif + + /* add new scripts here. Don't forget to update the list in */ + /* `afglobal.c'. */ + + AF_SCRIPT_MAX /* do not remove */ + + } AF_Script; + + + typedef struct AF_ScriptClassRec_ const* AF_ScriptClass; + + typedef struct AF_ScriptMetricsRec_ + { + AF_ScriptClass clazz; + AF_ScalerRec scaler; + FT_Bool digits_have_same_width; + + } AF_ScriptMetricsRec, *AF_ScriptMetrics; + + + /* This function parses an FT_Face to compute global metrics for + * a specific script. + */ + typedef FT_Error + (*AF_Script_InitMetricsFunc)( AF_ScriptMetrics metrics, + FT_Face face ); + + typedef void + (*AF_Script_ScaleMetricsFunc)( AF_ScriptMetrics metrics, + AF_Scaler scaler ); + + typedef void + (*AF_Script_DoneMetricsFunc)( AF_ScriptMetrics metrics ); + + + typedef FT_Error + (*AF_Script_InitHintsFunc)( AF_GlyphHints hints, + AF_ScriptMetrics metrics ); + + typedef void + (*AF_Script_ApplyHintsFunc)( AF_GlyphHints hints, + FT_Outline* outline, + AF_ScriptMetrics metrics ); + + + typedef struct AF_Script_UniRangeRec_ + { + FT_UInt32 first; + FT_UInt32 last; + + } AF_Script_UniRangeRec; + +#define AF_UNIRANGE_REC( a, b ) { (FT_UInt32)(a), (FT_UInt32)(b) } + + typedef const AF_Script_UniRangeRec *AF_Script_UniRange; + + + typedef struct AF_ScriptClassRec_ + { + AF_Script script; + AF_Script_UniRange script_uni_ranges; /* last must be { 0, 0 } */ + + FT_Offset script_metrics_size; + AF_Script_InitMetricsFunc script_metrics_init; + AF_Script_ScaleMetricsFunc script_metrics_scale; + AF_Script_DoneMetricsFunc script_metrics_done; + + AF_Script_InitHintsFunc script_hints_init; + AF_Script_ApplyHintsFunc script_hints_apply; + + } AF_ScriptClassRec; + + + /* Declare and define vtables for classes */ +#ifndef FT_CONFIG_OPTION_PIC + +#define AF_DECLARE_SCRIPT_CLASS( script_class ) \ + FT_CALLBACK_TABLE const AF_ScriptClassRec \ + script_class; + +#define AF_DEFINE_SCRIPT_CLASS( script_class, script_, ranges, m_size, \ + m_init, m_scale, m_done, h_init, h_apply ) \ + FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec \ + script_class = \ + { \ + script_, \ + ranges, \ + \ + m_size, \ + \ + m_init, \ + m_scale, \ + m_done, \ + \ + h_init, \ + h_apply \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define AF_DECLARE_SCRIPT_CLASS( script_class ) \ + FT_LOCAL( void ) \ + FT_Init_Class_##script_class( AF_ScriptClassRec* ac ); + +#define AF_DEFINE_SCRIPT_CLASS( script_class, script_, ranges, m_size, \ + m_init, m_scale, m_done, h_init, h_apply ) \ + FT_LOCAL_DEF( void ) \ + FT_Init_Class_##script_class( AF_ScriptClassRec* ac ) \ + { \ + ac->script = script_; \ + ac->script_uni_ranges = ranges; \ + \ + ac->script_metrics_size = m_size; \ + \ + ac->script_metrics_init = m_init; \ + ac->script_metrics_scale = m_scale; \ + ac->script_metrics_done = m_done; \ + \ + ac->script_hints_init = h_init; \ + ac->script_hints_apply = h_apply; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* */ + +FT_END_HEADER + +#endif /* __AFTYPES_H__ */ + + +/* END */ diff --git a/src/autofit/afwarp.c b/src/autofit/afwarp.c new file mode 100644 index 0000000..34a97ff --- /dev/null +++ b/src/autofit/afwarp.c @@ -0,0 +1,374 @@ +/***************************************************************************/ +/* */ +/* afwarp.c */ +/* */ +/* Auto-fitter warping algorithm (body). */ +/* */ +/* Copyright 2006, 2007, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* + * The idea of the warping code is to slightly scale and shift a glyph + * within a single dimension so that as much of its segments are aligned + * (more or less) on the grid. To find out the optimal scaling and + * shifting value, various parameter combinations are tried and scored. + */ + +#include "afwarp.h" + +#ifdef AF_CONFIG_OPTION_USE_WARPER + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_afwarp + + + /* The weights cover the range 0/64 - 63/64 of a pixel. Obviously, */ + /* values around a half pixel (which means exactly between two grid */ + /* lines) gets the worst weight. */ +#if 1 + static const AF_WarpScore + af_warper_weights[64] = + { + 35, 32, 30, 25, 20, 15, 12, 10, 5, 1, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, -1, -2, -5, -8,-10,-10,-20,-20,-30,-30, + + -30,-30,-20,-20,-10,-10, -8, -5, -2, -1, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 1, 5, 10, 12, 15, 20, 25, 30, 32, + }; +#else + static const AF_WarpScore + af_warper_weights[64] = + { + 30, 20, 10, 5, 4, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, -1, -2, -2, -5, -5,-10,-10,-15,-20, + + -20,-15,-15,-10,-10, -5, -5, -2, -2, -1, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 10, 20, + }; +#endif + + + /* Score segments for a given `scale' and `delta' in the range */ + /* `xx1' to `xx2', and store the best result in `warper'. If */ + /* the new best score is equal to the old one, prefer the */ + /* value with a smaller distortion (around `base_distort'). */ + + static void + af_warper_compute_line_best( AF_Warper warper, + FT_Fixed scale, + FT_Pos delta, + FT_Pos xx1, + FT_Pos xx2, + AF_WarpScore base_distort, + AF_Segment segments, + FT_UInt num_segments ) + { + FT_Int idx_min, idx_max, idx0; + FT_UInt nn; + AF_WarpScore scores[65]; + + + for ( nn = 0; nn < 65; nn++ ) + scores[nn] = 0; + + idx0 = xx1 - warper->t1; + + /* compute minimum and maximum indices */ + { + FT_Pos xx1min = warper->x1min; + FT_Pos xx1max = warper->x1max; + FT_Pos w = xx2 - xx1; + + + if ( xx1min + w < warper->x2min ) + xx1min = warper->x2min - w; + + xx1max = warper->x1max; + if ( xx1max + w > warper->x2max ) + xx1max = warper->x2max - w; + + idx_min = xx1min - warper->t1; + idx_max = xx1max - warper->t1; + + if ( idx_min < 0 || idx_min > idx_max || idx_max > 64 ) + { + FT_TRACE5(( "invalid indices:\n" + " min=%d max=%d, xx1=%ld xx2=%ld,\n" + " x1min=%ld x1max=%ld, x2min=%ld x2max=%ld\n", + idx_min, idx_max, xx1, xx2, + warper->x1min, warper->x1max, + warper->x2min, warper->x2max )); + return; + } + } + + for ( nn = 0; nn < num_segments; nn++ ) + { + FT_Pos len = segments[nn].max_coord - segments[nn].min_coord; + FT_Pos y0 = FT_MulFix( segments[nn].pos, scale ) + delta; + FT_Pos y = y0 + ( idx_min - idx0 ); + FT_Int idx; + + + /* score the length of the segments for the given range */ + for ( idx = idx_min; idx <= idx_max; idx++, y++ ) + scores[idx] += af_warper_weights[y & 63] * len; + } + + /* find best score */ + { + FT_Int idx; + + + for ( idx = idx_min; idx <= idx_max; idx++ ) + { + AF_WarpScore score = scores[idx]; + AF_WarpScore distort = base_distort + ( idx - idx0 ); + + + if ( score > warper->best_score || + ( score == warper->best_score && + distort < warper->best_distort ) ) + { + warper->best_score = score; + warper->best_distort = distort; + warper->best_scale = scale; + warper->best_delta = delta + ( idx - idx0 ); + } + } + } + } + + + /* Compute optimal scaling and delta values for a given glyph and */ + /* dimension. */ + + FT_LOCAL_DEF( void ) + af_warper_compute( AF_Warper warper, + AF_GlyphHints hints, + AF_Dimension dim, + FT_Fixed *a_scale, + FT_Pos *a_delta ) + { + AF_AxisHints axis; + AF_Point points; + + FT_Fixed org_scale; + FT_Pos org_delta; + + FT_UInt nn, num_points, num_segments; + FT_Int X1, X2; + FT_Int w; + + AF_WarpScore base_distort; + AF_Segment segments; + + + /* get original scaling transformation */ + if ( dim == AF_DIMENSION_VERT ) + { + org_scale = hints->y_scale; + org_delta = hints->y_delta; + } + else + { + org_scale = hints->x_scale; + org_delta = hints->x_delta; + } + + warper->best_scale = org_scale; + warper->best_delta = org_delta; + warper->best_score = INT_MIN; + warper->best_distort = 0; + + axis = &hints->axis[dim]; + segments = axis->segments; + num_segments = axis->num_segments; + points = hints->points; + num_points = hints->num_points; + + *a_scale = org_scale; + *a_delta = org_delta; + + /* get X1 and X2, minimum and maximum in original coordinates */ + if ( num_segments < 1 ) + return; + +#if 1 + X1 = X2 = points[0].fx; + for ( nn = 1; nn < num_points; nn++ ) + { + FT_Int X = points[nn].fx; + + + if ( X < X1 ) + X1 = X; + if ( X > X2 ) + X2 = X; + } +#else + X1 = X2 = segments[0].pos; + for ( nn = 1; nn < num_segments; nn++ ) + { + FT_Int X = segments[nn].pos; + + + if ( X < X1 ) + X1 = X; + if ( X > X2 ) + X2 = X; + } +#endif + + if ( X1 >= X2 ) + return; + + warper->x1 = FT_MulFix( X1, org_scale ) + org_delta; + warper->x2 = FT_MulFix( X2, org_scale ) + org_delta; + + warper->t1 = AF_WARPER_FLOOR( warper->x1 ); + warper->t2 = AF_WARPER_CEIL( warper->x2 ); + + /* examine a half pixel wide range around the maximum coordinates */ + warper->x1min = warper->x1 & ~31; + warper->x1max = warper->x1min + 32; + warper->x2min = warper->x2 & ~31; + warper->x2max = warper->x2min + 32; + + if ( warper->x1max > warper->x2 ) + warper->x1max = warper->x2; + + if ( warper->x2min < warper->x1 ) + warper->x2min = warper->x1; + + warper->w0 = warper->x2 - warper->x1; + + if ( warper->w0 <= 64 ) + { + warper->x1max = warper->x1; + warper->x2min = warper->x2; + } + + /* examine (at most) a pixel wide range around the natural width */ + warper->wmin = warper->x2min - warper->x1max; + warper->wmax = warper->x2max - warper->x1min; + +#if 1 + /* some heuristics to reduce the number of widths to be examined */ + { + int margin = 16; + + + if ( warper->w0 <= 128 ) + { + margin = 8; + if ( warper->w0 <= 96 ) + margin = 4; + } + + if ( warper->wmin < warper->w0 - margin ) + warper->wmin = warper->w0 - margin; + + if ( warper->wmax > warper->w0 + margin ) + warper->wmax = warper->w0 + margin; + } + + if ( warper->wmin < warper->w0 * 3 / 4 ) + warper->wmin = warper->w0 * 3 / 4; + + if ( warper->wmax > warper->w0 * 5 / 4 ) + warper->wmax = warper->w0 * 5 / 4; +#else + /* no scaling, just translation */ + warper->wmin = warper->wmax = warper->w0; +#endif + + for ( w = warper->wmin; w <= warper->wmax; w++ ) + { + FT_Fixed new_scale; + FT_Pos new_delta; + FT_Pos xx1, xx2; + + + /* compute min and max positions for given width, */ + /* assuring that they stay within the coordinate ranges */ + xx1 = warper->x1; + xx2 = warper->x2; + if ( w >= warper->w0 ) + { + xx1 -= w - warper->w0; + if ( xx1 < warper->x1min ) + { + xx2 += warper->x1min - xx1; + xx1 = warper->x1min; + } + } + else + { + xx1 -= w - warper->w0; + if ( xx1 > warper->x1max ) + { + xx2 -= xx1 - warper->x1max; + xx1 = warper->x1max; + } + } + + if ( xx1 < warper->x1 ) + base_distort = warper->x1 - xx1; + else + base_distort = xx1 - warper->x1; + + if ( xx2 < warper->x2 ) + base_distort += warper->x2 - xx2; + else + base_distort += xx2 - warper->x2; + + /* give base distortion a greater weight while scoring */ + base_distort *= 10; + + new_scale = org_scale + FT_DivFix( w - warper->w0, X2 - X1 ); + new_delta = xx1 - FT_MulFix( X1, new_scale ); + + af_warper_compute_line_best( warper, new_scale, new_delta, xx1, xx2, + base_distort, + segments, num_segments ); + } + + { + FT_Fixed best_scale = warper->best_scale; + FT_Pos best_delta = warper->best_delta; + + + hints->xmin_delta = FT_MulFix( X1, best_scale - org_scale ) + + best_delta; + hints->xmax_delta = FT_MulFix( X2, best_scale - org_scale ) + + best_delta; + + *a_scale = best_scale; + *a_delta = best_delta; + } + } + +#else /* !AF_CONFIG_OPTION_USE_WARPER */ + + /* ANSI C doesn't like empty source files */ + typedef int _af_warp_dummy; + +#endif /* !AF_CONFIG_OPTION_USE_WARPER */ + +/* END */ diff --git a/src/autofit/afwarp.h b/src/autofit/afwarp.h new file mode 100644 index 0000000..7343fdd --- /dev/null +++ b/src/autofit/afwarp.h @@ -0,0 +1,64 @@ +/***************************************************************************/ +/* */ +/* afwarp.h */ +/* */ +/* Auto-fitter warping algorithm (specification). */ +/* */ +/* Copyright 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFWARP_H__ +#define __AFWARP_H__ + +#include "afhints.h" + +FT_BEGIN_HEADER + +#define AF_WARPER_SCALE + +#define AF_WARPER_FLOOR( x ) ( (x) & ~63 ) +#define AF_WARPER_CEIL( x ) AF_WARPER_FLOOR( (x) + 63 ) + + + typedef FT_Int32 AF_WarpScore; + + typedef struct AF_WarperRec_ + { + FT_Pos x1, x2; + FT_Pos t1, t2; + FT_Pos x1min, x1max; + FT_Pos x2min, x2max; + FT_Pos w0, wmin, wmax; + + FT_Fixed best_scale; + FT_Pos best_delta; + AF_WarpScore best_score; + AF_WarpScore best_distort; + + } AF_WarperRec, *AF_Warper; + + + FT_LOCAL( void ) + af_warper_compute( AF_Warper warper, + AF_GlyphHints hints, + AF_Dimension dim, + FT_Fixed *a_scale, + FT_Fixed *a_delta ); + + +FT_END_HEADER + + +#endif /* __AFWARP_H__ */ + + +/* END */ diff --git a/src/autofit/autofit.c b/src/autofit/autofit.c new file mode 100644 index 0000000..3883a0a --- /dev/null +++ b/src/autofit/autofit.c @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* autofit.c */ +/* */ +/* Auto-fitter module (body). */ +/* */ +/* Copyright 2003-2007, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT +#include <ft2build.h> +#include "afpic.c" +#include "afangles.c" +#include "afglobal.c" +#include "afhints.c" + +#include "afdummy.c" +#include "aflatin.c" +#ifdef FT_OPTION_AUTOFIT2 +#include "aflatin2.c" +#endif +#include "afcjk.c" +#include "afindic.c" + +#include "afloader.c" +#include "afmodule.c" + +#ifdef AF_CONFIG_OPTION_USE_WARPER +#include "afwarp.c" +#endif + +/* END */ diff --git a/src/autofit/module.mk b/src/autofit/module.mk new file mode 100644 index 0000000..6ec6091 --- /dev/null +++ b/src/autofit/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 auto-fitter module definition +# + + +# Copyright 2003, 2004, 2005, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += AUTOFIT_MODULE + +define AUTOFIT_MODULE +$(OPEN_DRIVER) FT_Module_Class, autofit_module_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)autofit $(ECHO_DRIVER_DESC)automatic hinting module$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/autofit/rules.mk b/src/autofit/rules.mk new file mode 100644 index 0000000..b76bb79 --- /dev/null +++ b/src/autofit/rules.mk @@ -0,0 +1,79 @@ +# +# FreeType 2 auto-fitter module configuration rules +# + + +# Copyright 2003, 2004, 2005, 2006, 2007, 2011 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# AUTOF driver directory +# +AUTOF_DIR := $(SRC_DIR)/autofit + + +# compilation flags for the driver +# +AUTOF_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(AUTOF_DIR)) + + +# AUTOF driver sources (i.e., C files) +# +AUTOF_DRV_SRC := $(AUTOF_DIR)/afangles.c \ + $(AUTOF_DIR)/afcjk.c \ + $(AUTOF_DIR)/afdummy.c \ + $(AUTOF_DIR)/afglobal.c \ + $(AUTOF_DIR)/afhints.c \ + $(AUTOF_DIR)/afindic.c \ + $(AUTOF_DIR)/aflatin.c \ + $(AUTOF_DIR)/afloader.c \ + $(AUTOF_DIR)/afmodule.c \ + $(AUTOF_DIR)/afpic.c \ + $(AUTOF_DIR)/afwarp.c + +# AUTOF driver headers +# +AUTOF_DRV_H := $(AUTOF_DRV_SRC:%c=%h) \ + $(AUTOF_DIR)/aferrors.h \ + $(AUTOF_DIR)/aftypes.h + + +# AUTOF driver object(s) +# +# AUTOF_DRV_OBJ_M is used during `multi' builds. +# AUTOF_DRV_OBJ_S is used during `single' builds. +# +AUTOF_DRV_OBJ_M := $(AUTOF_DRV_SRC:$(AUTOF_DIR)/%.c=$(OBJ_DIR)/%.$O) +AUTOF_DRV_OBJ_S := $(OBJ_DIR)/autofit.$O + +# AUTOF driver source file for single build +# +AUTOF_DRV_SRC_S := $(AUTOF_DIR)/autofit.c + + +# AUTOF driver - single object +# +$(AUTOF_DRV_OBJ_S): $(AUTOF_DRV_SRC_S) $(AUTOF_DRV_SRC) \ + $(FREETYPE_H) $(AUTOF_DRV_H) + $(AUTOF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(AUTOF_DRV_SRC_S)) + + +# AUTOF driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(AUTOF_DIR)/%.c $(FREETYPE_H) $(AUTOF_DRV_H) + $(AUTOF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(AUTOF_DRV_OBJ_S) +DRV_OBJS_M += $(AUTOF_DRV_OBJ_M) + + +# EOF diff --git a/src/base/Jamfile b/src/base/Jamfile new file mode 100644 index 0000000..832e8b8 --- /dev/null +++ b/src/base/Jamfile @@ -0,0 +1,60 @@ +# FreeType 2 src/base Jamfile +# +# Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) base ; + + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = ftadvanc ftcalc ftdbgmem ftgloadr + ftobjs ftoutln ftrfork ftsnames + ftstream fttrigon ftutil + basepic ftpic + ; + } + else + { + _sources = ftbase ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# Add the optional/replaceable files. +# +{ + local _sources = bbox bdf bitmap debug gasp + glyph gxval init lcdfil mm + otval pfr stroke synth system + type1 winfnt xf86 patent + ; + + Library $(FT2_LIB) : ft$(_sources).c ; +} + +# Add Macintosh-specific file to the library when necessary. +# +if $(MAC) +{ + Library $(FT2_LIB) : ftmac.c ; +} +else if $(OS) = MACOSX +{ + if $(FT2_MULTI) + { + Library $(FT2_LIB) : ftmac.c ; + } +} + +# end of src/base Jamfile diff --git a/src/base/basepic.c b/src/base/basepic.c new file mode 100644 index 0000000..d754eb1 --- /dev/null +++ b/src/base/basepic.c @@ -0,0 +1,93 @@ +/***************************************************************************/ +/* */ +/* basepic.c */ +/* */ +/* The FreeType position independent code services for base. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "basepic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from ftglyph.c */ + void FT_Init_Class_ft_outline_glyph_class( FT_Glyph_Class* clazz ); + void FT_Init_Class_ft_bitmap_glyph_class( FT_Glyph_Class* clazz ); + + /* forward declaration of PIC init function from ftrfork.c (not modularized) */ + void FT_Init_Table_raccess_guess_table( ft_raccess_guess_rec* record ); + + /* forward declaration of PIC init functions from ftinit.c */ + FT_Error + ft_create_default_module_classes( FT_Library library ); + + void + ft_destroy_default_module_classes( FT_Library library ); + + void + ft_base_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + if ( pic_container->base ) + { + /* Destroy default module classes (in case FT_Add_Default_Modules was used) */ + ft_destroy_default_module_classes( library ); + + FT_FREE( pic_container->base ); + pic_container->base = NULL; + } + } + + + FT_Error + ft_base_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = FT_Err_Ok; + BasePIC* container; + FT_Memory memory = library->memory; + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->base = container; + + /* initialize default modules list and pointers */ + error = ft_create_default_module_classes( library ); + if ( error ) + goto Exit; + + /* initialize pointer table - this is how the module usually expects this data */ + FT_Init_Class_ft_outline_glyph_class( + &container->ft_outline_glyph_class ); + FT_Init_Class_ft_bitmap_glyph_class( + &container->ft_bitmap_glyph_class ); + FT_Init_Table_raccess_guess_table( + (ft_raccess_guess_rec*)&container->ft_raccess_guess_table); + +Exit: + if( error ) + ft_base_pic_free( library ); + return error; + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/src/base/basepic.h b/src/base/basepic.h new file mode 100644 index 0000000..bf90bef --- /dev/null +++ b/src/base/basepic.h @@ -0,0 +1,77 @@ +/***************************************************************************/ +/* */ +/* basepic.h */ +/* */ +/* The FreeType position independent code services for base. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __BASEPIC_H__ +#define __BASEPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC +#define FT_OUTLINE_GLYPH_CLASS_GET &ft_outline_glyph_class +#define FT_BITMAP_GLYPH_CLASS_GET &ft_bitmap_glyph_class +#define FT_DEFAULT_MODULES_GET ft_default_modules +#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK +#define FT_RACCESS_GUESS_TABLE_GET ft_raccess_guess_table +#endif + +#else /* FT_CONFIG_OPTION_PIC */ + +#include FT_GLYPH_H + +#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK +#include FT_INTERNAL_RFORK_H +#endif + + + typedef struct BasePIC_ + { + FT_Module_Class** default_module_classes; + FT_Glyph_Class ft_outline_glyph_class; + FT_Glyph_Class ft_bitmap_glyph_class; +#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK + ft_raccess_guess_rec ft_raccess_guess_table[FT_RACCESS_N_RULES]; +#endif + } BasePIC; + +#define GET_PIC(lib) ((BasePIC*)((lib)->pic_container.base)) +#define FT_OUTLINE_GLYPH_CLASS_GET (&GET_PIC(library)->ft_outline_glyph_class) +#define FT_BITMAP_GLYPH_CLASS_GET (&GET_PIC(library)->ft_bitmap_glyph_class) +#define FT_DEFAULT_MODULES_GET (GET_PIC(library)->default_module_classes) +#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK +#define FT_RACCESS_GUESS_TABLE_GET (GET_PIC(library)->ft_raccess_guess_table) +#endif + + /* see basepic.c for the implementation. */ + void + ft_base_pic_free( FT_Library library ); + + FT_Error + ft_base_pic_init( FT_Library library ); + +#endif /* FT_CONFIG_OPTION_PIC */ + /* */ + +FT_END_HEADER + +#endif /* __BASEPIC_H__ */ + + +/* END */ diff --git a/src/base/ftadvanc.c b/src/base/ftadvanc.c new file mode 100644 index 0000000..a8bb43d --- /dev/null +++ b/src/base/ftadvanc.c @@ -0,0 +1,160 @@ +/***************************************************************************/ +/* */ +/* ftadvanc.c */ +/* */ +/* Quick computation of advance widths (body). */ +/* */ +/* Copyright 2008, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_ADVANCES_H +#include FT_INTERNAL_OBJECTS_H + + + static FT_Error + _ft_face_scale_advances( FT_Face face, + FT_Fixed* advances, + FT_UInt count, + FT_Int32 flags ) + { + FT_Fixed scale; + FT_UInt nn; + + + if ( flags & FT_LOAD_NO_SCALE ) + return FT_Err_Ok; + + if ( face->size == NULL ) + return FT_Err_Invalid_Size_Handle; + + if ( flags & FT_LOAD_VERTICAL_LAYOUT ) + scale = face->size->metrics.y_scale; + else + scale = face->size->metrics.x_scale; + + /* this must be the same scaling as to get linear{Hori,Vert}Advance */ + /* (see `FT_Load_Glyph' implementation in src/base/ftobjs.c) */ + + for ( nn = 0; nn < count; nn++ ) + advances[nn] = FT_MulDiv( advances[nn], scale, 64 ); + + return FT_Err_Ok; + } + + + /* at the moment, we can perform fast advance retrieval only in */ + /* the following cases: */ + /* */ + /* - unscaled load */ + /* - unhinted load */ + /* - light-hinted load */ + +#define LOAD_ADVANCE_FAST_CHECK( flags ) \ + ( flags & ( FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING ) || \ + FT_LOAD_TARGET_MODE( flags ) == FT_RENDER_MODE_LIGHT ) + + + /* documentation is in ftadvanc.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Advance( FT_Face face, + FT_UInt gindex, + FT_Int32 flags, + FT_Fixed *padvance ) + { + FT_Face_GetAdvancesFunc func; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( gindex >= (FT_UInt)face->num_glyphs ) + return FT_Err_Invalid_Glyph_Index; + + func = face->driver->clazz->get_advances; + if ( func && LOAD_ADVANCE_FAST_CHECK( flags ) ) + { + FT_Error error; + + + error = func( face, gindex, 1, flags, padvance ); + if ( !error ) + return _ft_face_scale_advances( face, padvance, 1, flags ); + + if ( error != FT_ERROR_BASE( FT_Err_Unimplemented_Feature ) ) + return error; + } + + return FT_Get_Advances( face, gindex, 1, flags, padvance ); + } + + + /* documentation is in ftadvanc.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Advances( FT_Face face, + FT_UInt start, + FT_UInt count, + FT_Int32 flags, + FT_Fixed *padvances ) + { + FT_Face_GetAdvancesFunc func; + FT_UInt num, end, nn; + FT_Error error = FT_Err_Ok; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + num = (FT_UInt)face->num_glyphs; + end = start + count; + if ( start >= num || end < start || end > num ) + return FT_Err_Invalid_Glyph_Index; + + if ( count == 0 ) + return FT_Err_Ok; + + func = face->driver->clazz->get_advances; + if ( func && LOAD_ADVANCE_FAST_CHECK( flags ) ) + { + error = func( face, start, count, flags, padvances ); + if ( !error ) + return _ft_face_scale_advances( face, padvances, count, flags ); + + if ( error != FT_ERROR_BASE( FT_Err_Unimplemented_Feature ) ) + return error; + } + + error = FT_Err_Ok; + + if ( flags & FT_ADVANCE_FLAG_FAST_ONLY ) + return FT_Err_Unimplemented_Feature; + + flags |= (FT_UInt32)FT_LOAD_ADVANCE_ONLY; + for ( nn = 0; nn < count; nn++ ) + { + error = FT_Load_Glyph( face, start + nn, flags ); + if ( error ) + break; + + /* scale from 26.6 to 16.16 */ + padvances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT ) + ? face->glyph->advance.y << 10 + : face->glyph->advance.x << 10; + } + + return error; + } + + +/* END */ diff --git a/src/base/ftapi.c b/src/base/ftapi.c new file mode 100644 index 0000000..8914d1f --- /dev/null +++ b/src/base/ftapi.c @@ -0,0 +1,121 @@ +/***************************************************************************/ +/* */ +/* ftapi.c */ +/* */ +/* The FreeType compatibility functions (body). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_LIST_H +#include FT_OUTLINE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TABLES_H +#include FT_OUTLINE_H + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** C O M P A T I B I L I T Y ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* backwards compatibility API */ + + FT_BASE_DEF( void ) + FT_New_Memory_Stream( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Stream stream ) + { + FT_UNUSED( library ); + + FT_Stream_OpenMemory( stream, base, size ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Seek_Stream( FT_Stream stream, + FT_ULong pos ) + { + return FT_Stream_Seek( stream, pos ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Skip_Stream( FT_Stream stream, + FT_Long distance ) + { + return FT_Stream_Skip( stream, distance ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Read_Stream( FT_Stream stream, + FT_Byte* buffer, + FT_ULong count ) + { + return FT_Stream_Read( stream, buffer, count ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Read_Stream_At( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + return FT_Stream_ReadAt( stream, pos, buffer, count ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Extract_Frame( FT_Stream stream, + FT_ULong count, + FT_Byte** pbytes ) + { + return FT_Stream_ExtractFrame( stream, count, pbytes ); + } + + + FT_BASE_DEF( void ) + FT_Release_Frame( FT_Stream stream, + FT_Byte** pbytes ) + { + FT_Stream_ReleaseFrame( stream, pbytes ); + } + + FT_BASE_DEF( FT_Error ) + FT_Access_Frame( FT_Stream stream, + FT_ULong count ) + { + return FT_Stream_EnterFrame( stream, count ); + } + + + FT_BASE_DEF( void ) + FT_Forget_Frame( FT_Stream stream ) + { + FT_Stream_ExitFrame( stream ); + } + + +/* END */ diff --git a/src/base/ftbase.c b/src/base/ftbase.c new file mode 100644 index 0000000..5e5d70e --- /dev/null +++ b/src/base/ftbase.c @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* ftbase.c */ +/* */ +/* Single object library component (body only). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include "ftpic.c" +#include "basepic.c" +#include "ftadvanc.c" +#include "ftcalc.c" +#include "ftdbgmem.c" +#include "ftgloadr.c" +#include "ftobjs.c" +#include "ftoutln.c" +#include "ftrfork.c" +#include "ftsnames.c" +#include "ftstream.c" +#include "fttrigon.c" +#include "ftutil.c" + +#ifdef FT_MACINTOSH +#include "ftmac.c" +#endif + +/* END */ diff --git a/src/base/ftbase.h b/src/base/ftbase.h new file mode 100644 index 0000000..51a1db1 --- /dev/null +++ b/src/base/ftbase.h @@ -0,0 +1,69 @@ +/***************************************************************************/ +/* */ +/* ftbase.h */ +/* */ +/* The FreeType private functions used in base module (specification). */ +/* */ +/* Copyright 2008, 2010 by */ +/* David Turner, Robert Wilhelm, Werner Lemberg, and suzuki toshiya. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTBASE_H__ +#define __FTBASE_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H + + +FT_BEGIN_HEADER + + + /* Assume the stream is sfnt-wrapped PS Type1 or sfnt-wrapped CID-keyed */ + /* font, and try to load a face specified by the face_index. */ + FT_LOCAL( FT_Error ) + open_face_PS_from_sfnt_stream( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Int num_params, + FT_Parameter *params, + FT_Face *aface ); + + + /* Create a new FT_Face given a buffer and a driver name. */ + /* From ftmac.c. */ + FT_LOCAL( FT_Error ) + open_face_from_buffer( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Long face_index, + const char* driver_name, + FT_Face *aface ); + + +#if defined( FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK ) && \ + !defined( FT_MACINTOSH ) + /* Mac OS X/Darwin kernel often changes recommended method to access */ + /* the resource fork and older methods makes the kernel issue the */ + /* warning of deprecated method. To calm it down, the methods based */ + /* on Darwin VFS should be grouped and skip the rest methods after */ + /* the case the resource is opened but found to lack a font in it. */ + FT_LOCAL( FT_Bool ) + ft_raccess_rule_by_darwin_vfs( FT_Library library, FT_UInt rule_index ); +#endif + + +FT_END_HEADER + +#endif /* __FTBASE_H__ */ + + +/* END */ diff --git a/src/base/ftbbox.c b/src/base/ftbbox.c new file mode 100644 index 0000000..4b8e911 --- /dev/null +++ b/src/base/ftbbox.c @@ -0,0 +1,662 @@ +/***************************************************************************/ +/* */ +/* ftbbox.c */ +/* */ +/* FreeType bbox computation (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used */ +/* modified and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This component has a _single_ role: to compute exact outline bounding */ + /* boxes. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_BBOX_H +#include FT_IMAGE_H +#include FT_OUTLINE_H +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_OBJECTS_H + + + typedef struct TBBox_Rec_ + { + FT_Vector last; + FT_BBox bbox; + + } TBBox_Rec; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Move_To */ + /* */ + /* <Description> */ + /* This function is used as a `move_to' and `line_to' emitter during */ + /* FT_Outline_Decompose(). It simply records the destination point */ + /* in `user->last'; no further computations are necessary since we */ + /* use the cbox as the starting bbox which must be refined. */ + /* */ + /* <Input> */ + /* to :: A pointer to the destination vector. */ + /* */ + /* <InOut> */ + /* user :: A pointer to the current walk context. */ + /* */ + /* <Return> */ + /* Always 0. Needed for the interface only. */ + /* */ + static int + BBox_Move_To( FT_Vector* to, + TBBox_Rec* user ) + { + user->last = *to; + + return 0; + } + + +#define CHECK_X( p, bbox ) \ + ( p->x < bbox.xMin || p->x > bbox.xMax ) + +#define CHECK_Y( p, bbox ) \ + ( p->y < bbox.yMin || p->y > bbox.yMax ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Conic_Check */ + /* */ + /* <Description> */ + /* Finds the extrema of a 1-dimensional conic Bezier curve and update */ + /* a bounding range. This version uses direct computation, as it */ + /* doesn't need square roots. */ + /* */ + /* <Input> */ + /* y1 :: The start coordinate. */ + /* */ + /* y2 :: The coordinate of the control point. */ + /* */ + /* y3 :: The end coordinate. */ + /* */ + /* <InOut> */ + /* min :: The address of the current minimum. */ + /* */ + /* max :: The address of the current maximum. */ + /* */ + static void + BBox_Conic_Check( FT_Pos y1, + FT_Pos y2, + FT_Pos y3, + FT_Pos* min, + FT_Pos* max ) + { + if ( y1 <= y3 && y2 == y1 ) /* flat arc */ + goto Suite; + + if ( y1 < y3 ) + { + if ( y2 >= y1 && y2 <= y3 ) /* ascending arc */ + goto Suite; + } + else + { + if ( y2 >= y3 && y2 <= y1 ) /* descending arc */ + { + y2 = y1; + y1 = y3; + y3 = y2; + goto Suite; + } + } + + y1 = y3 = y1 - FT_MulDiv( y2 - y1, y2 - y1, y1 - 2*y2 + y3 ); + + Suite: + if ( y1 < *min ) *min = y1; + if ( y3 > *max ) *max = y3; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Conic_To */ + /* */ + /* <Description> */ + /* This function is used as a `conic_to' emitter during */ + /* FT_Outline_Decompose(). It checks a conic Bezier curve with the */ + /* current bounding box, and computes its extrema if necessary to */ + /* update it. */ + /* */ + /* <Input> */ + /* control :: A pointer to a control point. */ + /* */ + /* to :: A pointer to the destination vector. */ + /* */ + /* <InOut> */ + /* user :: The address of the current walk context. */ + /* */ + /* <Return> */ + /* Always 0. Needed for the interface only. */ + /* */ + /* <Note> */ + /* In the case of a non-monotonous arc, we compute directly the */ + /* extremum coordinates, as it is sufficiently fast. */ + /* */ + static int + BBox_Conic_To( FT_Vector* control, + FT_Vector* to, + TBBox_Rec* user ) + { + /* we don't need to check `to' since it is always an `on' point, thus */ + /* within the bbox */ + + if ( CHECK_X( control, user->bbox ) ) + BBox_Conic_Check( user->last.x, + control->x, + to->x, + &user->bbox.xMin, + &user->bbox.xMax ); + + if ( CHECK_Y( control, user->bbox ) ) + BBox_Conic_Check( user->last.y, + control->y, + to->y, + &user->bbox.yMin, + &user->bbox.yMax ); + + user->last = *to; + + return 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Cubic_Check */ + /* */ + /* <Description> */ + /* Finds the extrema of a 1-dimensional cubic Bezier curve and */ + /* updates a bounding range. This version uses splitting because we */ + /* don't want to use square roots and extra accuracy. */ + /* */ + /* <Input> */ + /* p1 :: The start coordinate. */ + /* */ + /* p2 :: The coordinate of the first control point. */ + /* */ + /* p3 :: The coordinate of the second control point. */ + /* */ + /* p4 :: The end coordinate. */ + /* */ + /* <InOut> */ + /* min :: The address of the current minimum. */ + /* */ + /* max :: The address of the current maximum. */ + /* */ + +#if 0 + + static void + BBox_Cubic_Check( FT_Pos p1, + FT_Pos p2, + FT_Pos p3, + FT_Pos p4, + FT_Pos* min, + FT_Pos* max ) + { + FT_Pos stack[32*3 + 1], *arc; + + + arc = stack; + + arc[0] = p1; + arc[1] = p2; + arc[2] = p3; + arc[3] = p4; + + do + { + FT_Pos y1 = arc[0]; + FT_Pos y2 = arc[1]; + FT_Pos y3 = arc[2]; + FT_Pos y4 = arc[3]; + + + if ( y1 == y4 ) + { + if ( y1 == y2 && y1 == y3 ) /* flat */ + goto Test; + } + else if ( y1 < y4 ) + { + if ( y2 >= y1 && y2 <= y4 && y3 >= y1 && y3 <= y4 ) /* ascending */ + goto Test; + } + else + { + if ( y2 >= y4 && y2 <= y1 && y3 >= y4 && y3 <= y1 ) /* descending */ + { + y2 = y1; + y1 = y4; + y4 = y2; + goto Test; + } + } + + /* unknown direction -- split the arc in two */ + arc[6] = y4; + arc[1] = y1 = ( y1 + y2 ) / 2; + arc[5] = y4 = ( y4 + y3 ) / 2; + y2 = ( y2 + y3 ) / 2; + arc[2] = y1 = ( y1 + y2 ) / 2; + arc[4] = y4 = ( y4 + y2 ) / 2; + arc[3] = ( y1 + y4 ) / 2; + + arc += 3; + goto Suite; + + Test: + if ( y1 < *min ) *min = y1; + if ( y4 > *max ) *max = y4; + arc -= 3; + + Suite: + ; + } while ( arc >= stack ); + } + +#else + + static void + test_cubic_extrema( FT_Pos y1, + FT_Pos y2, + FT_Pos y3, + FT_Pos y4, + FT_Fixed u, + FT_Pos* min, + FT_Pos* max ) + { + /* FT_Pos a = y4 - 3*y3 + 3*y2 - y1; */ + FT_Pos b = y3 - 2*y2 + y1; + FT_Pos c = y2 - y1; + FT_Pos d = y1; + FT_Pos y; + FT_Fixed uu; + + FT_UNUSED ( y4 ); + + + /* The polynomial is */ + /* */ + /* P(x) = a*x^3 + 3b*x^2 + 3c*x + d , */ + /* */ + /* dP/dx = 3a*x^2 + 6b*x + 3c . */ + /* */ + /* However, we also have */ + /* */ + /* dP/dx(u) = 0 , */ + /* */ + /* which implies by subtraction that */ + /* */ + /* P(u) = b*u^2 + 2c*u + d . */ + + if ( u > 0 && u < 0x10000L ) + { + uu = FT_MulFix( u, u ); + y = d + FT_MulFix( c, 2*u ) + FT_MulFix( b, uu ); + + if ( y < *min ) *min = y; + if ( y > *max ) *max = y; + } + } + + + static void + BBox_Cubic_Check( FT_Pos y1, + FT_Pos y2, + FT_Pos y3, + FT_Pos y4, + FT_Pos* min, + FT_Pos* max ) + { + /* always compare first and last points */ + if ( y1 < *min ) *min = y1; + else if ( y1 > *max ) *max = y1; + + if ( y4 < *min ) *min = y4; + else if ( y4 > *max ) *max = y4; + + /* now, try to see if there are split points here */ + if ( y1 <= y4 ) + { + /* flat or ascending arc test */ + if ( y1 <= y2 && y2 <= y4 && y1 <= y3 && y3 <= y4 ) + return; + } + else /* y1 > y4 */ + { + /* descending arc test */ + if ( y1 >= y2 && y2 >= y4 && y1 >= y3 && y3 >= y4 ) + return; + } + + /* There are some split points. Find them. */ + { + FT_Pos a = y4 - 3*y3 + 3*y2 - y1; + FT_Pos b = y3 - 2*y2 + y1; + FT_Pos c = y2 - y1; + FT_Pos d; + FT_Fixed t; + + + /* We need to solve `ax^2+2bx+c' here, without floating points! */ + /* The trick is to normalize to a different representation in order */ + /* to use our 16.16 fixed point routines. */ + /* */ + /* We compute FT_MulFix(b,b) and FT_MulFix(a,c) after normalization. */ + /* These values must fit into a single 16.16 value. */ + /* */ + /* We normalize a, b, and c to `8.16' fixed float values to ensure */ + /* that its product is held in a `16.16' value. */ + + { + FT_ULong t1, t2; + int shift = 0; + + + /* The following computation is based on the fact that for */ + /* any value `y', if `n' is the position of the most */ + /* significant bit of `abs(y)' (starting from 0 for the */ + /* least significant bit), then `y' is in the range */ + /* */ + /* -2^n..2^n-1 */ + /* */ + /* We want to shift `a', `b', and `c' concurrently in order */ + /* to ensure that they all fit in 8.16 values, which maps */ + /* to the integer range `-2^23..2^23-1'. */ + /* */ + /* Necessarily, we need to shift `a', `b', and `c' so that */ + /* the most significant bit of its absolute values is at */ + /* _most_ at position 23. */ + /* */ + /* We begin by computing `t1' as the bitwise `OR' of the */ + /* absolute values of `a', `b', `c'. */ + + t1 = (FT_ULong)( ( a >= 0 ) ? a : -a ); + t2 = (FT_ULong)( ( b >= 0 ) ? b : -b ); + t1 |= t2; + t2 = (FT_ULong)( ( c >= 0 ) ? c : -c ); + t1 |= t2; + + /* Now we can be sure that the most significant bit of `t1' */ + /* is the most significant bit of either `a', `b', or `c', */ + /* depending on the greatest integer range of the particular */ + /* variable. */ + /* */ + /* Next, we compute the `shift', by shifting `t1' as many */ + /* times as necessary to move its MSB to position 23. This */ + /* corresponds to a value of `t1' that is in the range */ + /* 0x40_0000..0x7F_FFFF. */ + /* */ + /* Finally, we shift `a', `b', and `c' by the same amount. */ + /* This ensures that all values are now in the range */ + /* -2^23..2^23, i.e., they are now expressed as 8.16 */ + /* fixed-float numbers. This also means that we are using */ + /* 24 bits of precision to compute the zeros, independently */ + /* of the range of the original polynomial coefficients. */ + /* */ + /* This algorithm should ensure reasonably accurate values */ + /* for the zeros. Note that they are only expressed with */ + /* 16 bits when computing the extrema (the zeros need to */ + /* be in 0..1 exclusive to be considered part of the arc). */ + + if ( t1 == 0 ) /* all coefficients are 0! */ + return; + + if ( t1 > 0x7FFFFFUL ) + { + do + { + shift++; + t1 >>= 1; + + } while ( t1 > 0x7FFFFFUL ); + + /* this loses some bits of precision, but we use 24 of them */ + /* for the computation anyway */ + a >>= shift; + b >>= shift; + c >>= shift; + } + else if ( t1 < 0x400000UL ) + { + do + { + shift++; + t1 <<= 1; + + } while ( t1 < 0x400000UL ); + + a <<= shift; + b <<= shift; + c <<= shift; + } + } + + /* handle a == 0 */ + if ( a == 0 ) + { + if ( b != 0 ) + { + t = - FT_DivFix( c, b ) / 2; + test_cubic_extrema( y1, y2, y3, y4, t, min, max ); + } + } + else + { + /* solve the equation now */ + d = FT_MulFix( b, b ) - FT_MulFix( a, c ); + if ( d < 0 ) + return; + + if ( d == 0 ) + { + /* there is a single split point at -b/a */ + t = - FT_DivFix( b, a ); + test_cubic_extrema( y1, y2, y3, y4, t, min, max ); + } + else + { + /* there are two solutions; we need to filter them */ + d = FT_SqrtFixed( (FT_Int32)d ); + t = - FT_DivFix( b - d, a ); + test_cubic_extrema( y1, y2, y3, y4, t, min, max ); + + t = - FT_DivFix( b + d, a ); + test_cubic_extrema( y1, y2, y3, y4, t, min, max ); + } + } + } + } + +#endif + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Cubic_To */ + /* */ + /* <Description> */ + /* This function is used as a `cubic_to' emitter during */ + /* FT_Outline_Decompose(). It checks a cubic Bezier curve with the */ + /* current bounding box, and computes its extrema if necessary to */ + /* update it. */ + /* */ + /* <Input> */ + /* control1 :: A pointer to the first control point. */ + /* */ + /* control2 :: A pointer to the second control point. */ + /* */ + /* to :: A pointer to the destination vector. */ + /* */ + /* <InOut> */ + /* user :: The address of the current walk context. */ + /* */ + /* <Return> */ + /* Always 0. Needed for the interface only. */ + /* */ + /* <Note> */ + /* In the case of a non-monotonous arc, we don't compute directly */ + /* extremum coordinates, we subdivide instead. */ + /* */ + static int + BBox_Cubic_To( FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to, + TBBox_Rec* user ) + { + /* we don't need to check `to' since it is always an `on' point, thus */ + /* within the bbox */ + + if ( CHECK_X( control1, user->bbox ) || + CHECK_X( control2, user->bbox ) ) + BBox_Cubic_Check( user->last.x, + control1->x, + control2->x, + to->x, + &user->bbox.xMin, + &user->bbox.xMax ); + + if ( CHECK_Y( control1, user->bbox ) || + CHECK_Y( control2, user->bbox ) ) + BBox_Cubic_Check( user->last.y, + control1->y, + control2->y, + to->y, + &user->bbox.yMin, + &user->bbox.yMax ); + + user->last = *to; + + return 0; + } + +FT_DEFINE_OUTLINE_FUNCS(bbox_interface, + (FT_Outline_MoveTo_Func) BBox_Move_To, + (FT_Outline_LineTo_Func) BBox_Move_To, + (FT_Outline_ConicTo_Func)BBox_Conic_To, + (FT_Outline_CubicTo_Func)BBox_Cubic_To, + 0, 0 + ) + + /* documentation is in ftbbox.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Get_BBox( FT_Outline* outline, + FT_BBox *abbox ) + { + FT_BBox cbox; + FT_BBox bbox; + FT_Vector* vec; + FT_UShort n; + + + if ( !abbox ) + return FT_Err_Invalid_Argument; + + if ( !outline ) + return FT_Err_Invalid_Outline; + + /* if outline is empty, return (0,0,0,0) */ + if ( outline->n_points == 0 || outline->n_contours <= 0 ) + { + abbox->xMin = abbox->xMax = 0; + abbox->yMin = abbox->yMax = 0; + return 0; + } + + /* We compute the control box as well as the bounding box of */ + /* all `on' points in the outline. Then, if the two boxes */ + /* coincide, we exit immediately. */ + + vec = outline->points; + bbox.xMin = bbox.xMax = cbox.xMin = cbox.xMax = vec->x; + bbox.yMin = bbox.yMax = cbox.yMin = cbox.yMax = vec->y; + vec++; + + for ( n = 1; n < outline->n_points; n++ ) + { + FT_Pos x = vec->x; + FT_Pos y = vec->y; + + + /* update control box */ + if ( x < cbox.xMin ) cbox.xMin = x; + if ( x > cbox.xMax ) cbox.xMax = x; + + if ( y < cbox.yMin ) cbox.yMin = y; + if ( y > cbox.yMax ) cbox.yMax = y; + + if ( FT_CURVE_TAG( outline->tags[n] ) == FT_CURVE_TAG_ON ) + { + /* update bbox for `on' points only */ + if ( x < bbox.xMin ) bbox.xMin = x; + if ( x > bbox.xMax ) bbox.xMax = x; + + if ( y < bbox.yMin ) bbox.yMin = y; + if ( y > bbox.yMax ) bbox.yMax = y; + } + + vec++; + } + + /* test two boxes for equality */ + if ( cbox.xMin < bbox.xMin || cbox.xMax > bbox.xMax || + cbox.yMin < bbox.yMin || cbox.yMax > bbox.yMax ) + { + /* the two boxes are different, now walk over the outline to */ + /* get the Bezier arc extrema. */ + + FT_Error error; + TBBox_Rec user; + +#ifdef FT_CONFIG_OPTION_PIC + FT_Outline_Funcs bbox_interface; + Init_Class_bbox_interface(&bbox_interface); +#endif + + user.bbox = bbox; + + error = FT_Outline_Decompose( outline, &bbox_interface, &user ); + if ( error ) + return error; + + *abbox = user.bbox; + } + else + *abbox = bbox; + + return FT_Err_Ok; + } + + +/* END */ diff --git a/src/base/ftbdf.c b/src/base/ftbdf.c new file mode 100644 index 0000000..d29adf0 --- /dev/null +++ b/src/base/ftbdf.c @@ -0,0 +1,88 @@ +/***************************************************************************/ +/* */ +/* ftbdf.c */ +/* */ +/* FreeType API for accessing BDF-specific strings (body). */ +/* */ +/* Copyright 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_BDF_H + + + /* documentation is in ftbdf.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_BDF_Charset_ID( FT_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ) + { + FT_Error error; + const char* encoding = NULL; + const char* registry = NULL; + + + error = FT_Err_Invalid_Argument; + + if ( face ) + { + FT_Service_BDF service; + + + FT_FACE_FIND_SERVICE( face, service, BDF ); + + if ( service && service->get_charset_id ) + error = service->get_charset_id( face, &encoding, ®istry ); + } + + if ( acharset_encoding ) + *acharset_encoding = encoding; + + if ( acharset_registry ) + *acharset_registry = registry; + + return error; + } + + + /* documentation is in ftbdf.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_BDF_Property( FT_Face face, + const char* prop_name, + BDF_PropertyRec *aproperty ) + { + FT_Error error; + + + error = FT_Err_Invalid_Argument; + + aproperty->type = BDF_PROPERTY_TYPE_NONE; + + if ( face ) + { + FT_Service_BDF service; + + + FT_FACE_FIND_SERVICE( face, service, BDF ); + + if ( service && service->get_property ) + error = service->get_property( face, prop_name, aproperty ); + } + + return error; + } + + +/* END */ diff --git a/src/base/ftbitmap.c b/src/base/ftbitmap.c new file mode 100644 index 0000000..84fa322 --- /dev/null +++ b/src/base/ftbitmap.c @@ -0,0 +1,667 @@ +/***************************************************************************/ +/* */ +/* ftbitmap.c */ +/* */ +/* FreeType utility functions for bitmaps (body). */ +/* */ +/* Copyright 2004-2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_BITMAP_H +#include FT_IMAGE_H +#include FT_INTERNAL_OBJECTS_H + + + static + const FT_Bitmap null_bitmap = { 0, 0, 0, 0, 0, 0, 0, 0 }; + + + /* documentation is in ftbitmap.h */ + + FT_EXPORT_DEF( void ) + FT_Bitmap_New( FT_Bitmap *abitmap ) + { + *abitmap = null_bitmap; + } + + + /* documentation is in ftbitmap.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Bitmap_Copy( FT_Library library, + const FT_Bitmap *source, + FT_Bitmap *target) + { + FT_Memory memory = library->memory; + FT_Error error = FT_Err_Ok; + FT_Int pitch = source->pitch; + FT_ULong size; + + + if ( source == target ) + return FT_Err_Ok; + + if ( source->buffer == NULL ) + { + *target = *source; + + return FT_Err_Ok; + } + + if ( pitch < 0 ) + pitch = -pitch; + size = (FT_ULong)( pitch * source->rows ); + + if ( target->buffer ) + { + FT_Int target_pitch = target->pitch; + FT_ULong target_size; + + + if ( target_pitch < 0 ) + target_pitch = -target_pitch; + target_size = (FT_ULong)( target_pitch * target->rows ); + + if ( target_size != size ) + (void)FT_QREALLOC( target->buffer, target_size, size ); + } + else + (void)FT_QALLOC( target->buffer, size ); + + if ( !error ) + { + unsigned char *p; + + + p = target->buffer; + *target = *source; + target->buffer = p; + + FT_MEM_COPY( target->buffer, source->buffer, size ); + } + + return error; + } + + + static FT_Error + ft_bitmap_assure_buffer( FT_Memory memory, + FT_Bitmap* bitmap, + FT_UInt xpixels, + FT_UInt ypixels ) + { + FT_Error error; + int pitch; + int new_pitch; + FT_UInt bpp; + FT_Int i, width, height; + unsigned char* buffer = NULL; + + + width = bitmap->width; + height = bitmap->rows; + pitch = bitmap->pitch; + if ( pitch < 0 ) + pitch = -pitch; + + switch ( bitmap->pixel_mode ) + { + case FT_PIXEL_MODE_MONO: + bpp = 1; + new_pitch = ( width + xpixels + 7 ) >> 3; + break; + case FT_PIXEL_MODE_GRAY2: + bpp = 2; + new_pitch = ( width + xpixels + 3 ) >> 2; + break; + case FT_PIXEL_MODE_GRAY4: + bpp = 4; + new_pitch = ( width + xpixels + 1 ) >> 1; + break; + case FT_PIXEL_MODE_GRAY: + case FT_PIXEL_MODE_LCD: + case FT_PIXEL_MODE_LCD_V: + bpp = 8; + new_pitch = ( width + xpixels ); + break; + default: + return FT_Err_Invalid_Glyph_Format; + } + + /* if no need to allocate memory */ + if ( ypixels == 0 && new_pitch <= pitch ) + { + /* zero the padding */ + FT_Int bit_width = pitch * 8; + FT_Int bit_last = ( width + xpixels ) * bpp; + + + if ( bit_last < bit_width ) + { + FT_Byte* line = bitmap->buffer + ( bit_last >> 3 ); + FT_Byte* end = bitmap->buffer + pitch; + FT_Int shift = bit_last & 7; + FT_UInt mask = 0xFF00U >> shift; + FT_Int count = height; + + + for ( ; count > 0; count--, line += pitch, end += pitch ) + { + FT_Byte* write = line; + + + if ( shift > 0 ) + { + write[0] = (FT_Byte)( write[0] & mask ); + write++; + } + if ( write < end ) + FT_MEM_ZERO( write, end-write ); + } + } + + return FT_Err_Ok; + } + + if ( FT_QALLOC_MULT( buffer, new_pitch, bitmap->rows + ypixels ) ) + return error; + + if ( bitmap->pitch > 0 ) + { + FT_Int len = ( width * bpp + 7 ) >> 3; + + + for ( i = 0; i < bitmap->rows; i++ ) + FT_MEM_COPY( buffer + new_pitch * ( ypixels + i ), + bitmap->buffer + pitch * i, len ); + } + else + { + FT_Int len = ( width * bpp + 7 ) >> 3; + + + for ( i = 0; i < bitmap->rows; i++ ) + FT_MEM_COPY( buffer + new_pitch * i, + bitmap->buffer + pitch * i, len ); + } + + FT_FREE( bitmap->buffer ); + bitmap->buffer = buffer; + + if ( bitmap->pitch < 0 ) + new_pitch = -new_pitch; + + /* set pitch only, width and height are left untouched */ + bitmap->pitch = new_pitch; + + return FT_Err_Ok; + } + + + /* documentation is in ftbitmap.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Bitmap_Embolden( FT_Library library, + FT_Bitmap* bitmap, + FT_Pos xStrength, + FT_Pos yStrength ) + { + FT_Error error; + unsigned char* p; + FT_Int i, x, y, pitch; + FT_Int xstr, ystr; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !bitmap || !bitmap->buffer ) + return FT_Err_Invalid_Argument; + + if ( ( ( FT_PIX_ROUND( xStrength ) >> 6 ) > FT_INT_MAX ) || + ( ( FT_PIX_ROUND( yStrength ) >> 6 ) > FT_INT_MAX ) ) + return FT_Err_Invalid_Argument; + + xstr = (FT_Int)FT_PIX_ROUND( xStrength ) >> 6; + ystr = (FT_Int)FT_PIX_ROUND( yStrength ) >> 6; + + if ( xstr == 0 && ystr == 0 ) + return FT_Err_Ok; + else if ( xstr < 0 || ystr < 0 ) + return FT_Err_Invalid_Argument; + + switch ( bitmap->pixel_mode ) + { + case FT_PIXEL_MODE_GRAY2: + case FT_PIXEL_MODE_GRAY4: + { + FT_Bitmap tmp; + FT_Int align; + + + if ( bitmap->pixel_mode == FT_PIXEL_MODE_GRAY2 ) + align = ( bitmap->width + xstr + 3 ) / 4; + else + align = ( bitmap->width + xstr + 1 ) / 2; + + FT_Bitmap_New( &tmp ); + + error = FT_Bitmap_Convert( library, bitmap, &tmp, align ); + if ( error ) + return error; + + FT_Bitmap_Done( library, bitmap ); + *bitmap = tmp; + } + break; + + case FT_PIXEL_MODE_MONO: + if ( xstr > 8 ) + xstr = 8; + break; + + case FT_PIXEL_MODE_LCD: + xstr *= 3; + break; + + case FT_PIXEL_MODE_LCD_V: + ystr *= 3; + break; + } + + error = ft_bitmap_assure_buffer( library->memory, bitmap, xstr, ystr ); + if ( error ) + return error; + + pitch = bitmap->pitch; + if ( pitch > 0 ) + p = bitmap->buffer + pitch * ystr; + else + { + pitch = -pitch; + p = bitmap->buffer + pitch * ( bitmap->rows - 1 ); + } + + /* for each row */ + for ( y = 0; y < bitmap->rows ; y++ ) + { + /* + * Horizontally: + * + * From the last pixel on, make each pixel or'ed with the + * `xstr' pixels before it. + */ + for ( x = pitch - 1; x >= 0; x-- ) + { + unsigned char tmp; + + + tmp = p[x]; + for ( i = 1; i <= xstr; i++ ) + { + if ( bitmap->pixel_mode == FT_PIXEL_MODE_MONO ) + { + p[x] |= tmp >> i; + + /* the maximum value of 8 for `xstr' comes from here */ + if ( x > 0 ) + p[x] |= p[x - 1] << ( 8 - i ); + +#if 0 + if ( p[x] == 0xff ) + break; +#endif + } + else + { + if ( x - i >= 0 ) + { + if ( p[x] + p[x - i] > bitmap->num_grays - 1 ) + { + p[x] = (unsigned char)(bitmap->num_grays - 1); + break; + } + else + { + p[x] = (unsigned char)(p[x] + p[x-i]); + if ( p[x] == bitmap->num_grays - 1 ) + break; + } + } + else + break; + } + } + } + + /* + * Vertically: + * + * Make the above `ystr' rows or'ed with it. + */ + for ( x = 1; x <= ystr; x++ ) + { + unsigned char* q; + + + q = p - bitmap->pitch * x; + for ( i = 0; i < pitch; i++ ) + q[i] |= p[i]; + } + + p += bitmap->pitch; + } + + bitmap->width += xstr; + bitmap->rows += ystr; + + return FT_Err_Ok; + } + + + /* documentation is in ftbitmap.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Bitmap_Convert( FT_Library library, + const FT_Bitmap *source, + FT_Bitmap *target, + FT_Int alignment ) + { + FT_Error error = FT_Err_Ok; + FT_Memory memory; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + memory = library->memory; + + switch ( source->pixel_mode ) + { + case FT_PIXEL_MODE_MONO: + case FT_PIXEL_MODE_GRAY: + case FT_PIXEL_MODE_GRAY2: + case FT_PIXEL_MODE_GRAY4: + case FT_PIXEL_MODE_LCD: + case FT_PIXEL_MODE_LCD_V: + { + FT_Int pad; + FT_Long old_size; + + + old_size = target->rows * target->pitch; + if ( old_size < 0 ) + old_size = -old_size; + + target->pixel_mode = FT_PIXEL_MODE_GRAY; + target->rows = source->rows; + target->width = source->width; + + pad = 0; + if ( alignment > 0 ) + { + pad = source->width % alignment; + if ( pad != 0 ) + pad = alignment - pad; + } + + target->pitch = source->width + pad; + + if ( target->pitch > 0 && + (FT_ULong)target->rows > FT_ULONG_MAX / target->pitch ) + return FT_Err_Invalid_Argument; + + if ( target->rows * target->pitch > old_size && + FT_QREALLOC( target->buffer, + old_size, target->rows * target->pitch ) ) + return error; + } + break; + + default: + error = FT_Err_Invalid_Argument; + } + + switch ( source->pixel_mode ) + { + case FT_PIXEL_MODE_MONO: + { + FT_Byte* s = source->buffer; + FT_Byte* t = target->buffer; + FT_Int i; + + + target->num_grays = 2; + + for ( i = source->rows; i > 0; i-- ) + { + FT_Byte* ss = s; + FT_Byte* tt = t; + FT_Int j; + + + /* get the full bytes */ + for ( j = source->width >> 3; j > 0; j-- ) + { + FT_Int val = ss[0]; /* avoid a byte->int cast on each line */ + + + tt[0] = (FT_Byte)( ( val & 0x80 ) >> 7 ); + tt[1] = (FT_Byte)( ( val & 0x40 ) >> 6 ); + tt[2] = (FT_Byte)( ( val & 0x20 ) >> 5 ); + tt[3] = (FT_Byte)( ( val & 0x10 ) >> 4 ); + tt[4] = (FT_Byte)( ( val & 0x08 ) >> 3 ); + tt[5] = (FT_Byte)( ( val & 0x04 ) >> 2 ); + tt[6] = (FT_Byte)( ( val & 0x02 ) >> 1 ); + tt[7] = (FT_Byte)( val & 0x01 ); + + tt += 8; + ss += 1; + } + + /* get remaining pixels (if any) */ + j = source->width & 7; + if ( j > 0 ) + { + FT_Int val = *ss; + + + for ( ; j > 0; j-- ) + { + tt[0] = (FT_Byte)( ( val & 0x80 ) >> 7); + val <<= 1; + tt += 1; + } + } + + s += source->pitch; + t += target->pitch; + } + } + break; + + + case FT_PIXEL_MODE_GRAY: + case FT_PIXEL_MODE_LCD: + case FT_PIXEL_MODE_LCD_V: + { + FT_Int width = source->width; + FT_Byte* s = source->buffer; + FT_Byte* t = target->buffer; + FT_Int s_pitch = source->pitch; + FT_Int t_pitch = target->pitch; + FT_Int i; + + + target->num_grays = 256; + + for ( i = source->rows; i > 0; i-- ) + { + FT_ARRAY_COPY( t, s, width ); + + s += s_pitch; + t += t_pitch; + } + } + break; + + + case FT_PIXEL_MODE_GRAY2: + { + FT_Byte* s = source->buffer; + FT_Byte* t = target->buffer; + FT_Int i; + + + target->num_grays = 4; + + for ( i = source->rows; i > 0; i-- ) + { + FT_Byte* ss = s; + FT_Byte* tt = t; + FT_Int j; + + + /* get the full bytes */ + for ( j = source->width >> 2; j > 0; j-- ) + { + FT_Int val = ss[0]; + + + tt[0] = (FT_Byte)( ( val & 0xC0 ) >> 6 ); + tt[1] = (FT_Byte)( ( val & 0x30 ) >> 4 ); + tt[2] = (FT_Byte)( ( val & 0x0C ) >> 2 ); + tt[3] = (FT_Byte)( ( val & 0x03 ) ); + + ss += 1; + tt += 4; + } + + j = source->width & 3; + if ( j > 0 ) + { + FT_Int val = ss[0]; + + + for ( ; j > 0; j-- ) + { + tt[0] = (FT_Byte)( ( val & 0xC0 ) >> 6 ); + val <<= 2; + tt += 1; + } + } + + s += source->pitch; + t += target->pitch; + } + } + break; + + + case FT_PIXEL_MODE_GRAY4: + { + FT_Byte* s = source->buffer; + FT_Byte* t = target->buffer; + FT_Int i; + + + target->num_grays = 16; + + for ( i = source->rows; i > 0; i-- ) + { + FT_Byte* ss = s; + FT_Byte* tt = t; + FT_Int j; + + + /* get the full bytes */ + for ( j = source->width >> 1; j > 0; j-- ) + { + FT_Int val = ss[0]; + + + tt[0] = (FT_Byte)( ( val & 0xF0 ) >> 4 ); + tt[1] = (FT_Byte)( ( val & 0x0F ) ); + + ss += 1; + tt += 2; + } + + if ( source->width & 1 ) + tt[0] = (FT_Byte)( ( ss[0] & 0xF0 ) >> 4 ); + + s += source->pitch; + t += target->pitch; + } + } + break; + + + default: + ; + } + + return error; + } + + + /* documentation is in ftbitmap.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot slot ) + { + if ( slot && slot->format == FT_GLYPH_FORMAT_BITMAP && + !( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) ) + { + FT_Bitmap bitmap; + FT_Error error; + + + FT_Bitmap_New( &bitmap ); + error = FT_Bitmap_Copy( slot->library, &slot->bitmap, &bitmap ); + if ( error ) + return error; + + slot->bitmap = bitmap; + slot->internal->flags |= FT_GLYPH_OWN_BITMAP; + } + + return FT_Err_Ok; + } + + + /* documentation is in ftbitmap.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Bitmap_Done( FT_Library library, + FT_Bitmap *bitmap ) + { + FT_Memory memory; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !bitmap ) + return FT_Err_Invalid_Argument; + + memory = library->memory; + + FT_FREE( bitmap->buffer ); + *bitmap = null_bitmap; + + return FT_Err_Ok; + } + + +/* END */ diff --git a/src/base/ftcalc.c b/src/base/ftcalc.c new file mode 100644 index 0000000..2aeea04 --- /dev/null +++ b/src/base/ftcalc.c @@ -0,0 +1,958 @@ +/***************************************************************************/ +/* */ +/* ftcalc.c */ +/* */ +/* Arithmetic computations (body). */ +/* */ +/* Copyright 1996-2006, 2008, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* Support for 1-complement arithmetic has been totally dropped in this */ + /* release. You can still write your own code if you need it. */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* Implementing basic computation routines. */ + /* */ + /* FT_MulDiv(), FT_MulFix(), FT_DivFix(), FT_RoundFix(), FT_CeilFix(), */ + /* and FT_FloorFix() are declared in freetype.h. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_GLYPH_H +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H + +#ifdef FT_MULFIX_INLINED +#undef FT_MulFix +#endif + +/* we need to define a 64-bits data type here */ + +#ifdef FT_LONG64 + + typedef FT_INT64 FT_Int64; + +#else + + typedef struct FT_Int64_ + { + FT_UInt32 lo; + FT_UInt32 hi; + + } FT_Int64; + +#endif /* FT_LONG64 */ + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_calc + + + /* The following three functions are available regardless of whether */ + /* FT_LONG64 is defined. */ + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_RoundFix( FT_Fixed a ) + { + return ( a >= 0 ) ? ( a + 0x8000L ) & ~0xFFFFL + : -((-a + 0x8000L ) & ~0xFFFFL ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_CeilFix( FT_Fixed a ) + { + return ( a >= 0 ) ? ( a + 0xFFFFL ) & ~0xFFFFL + : -((-a + 0xFFFFL ) & ~0xFFFFL ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_FloorFix( FT_Fixed a ) + { + return ( a >= 0 ) ? a & ~0xFFFFL + : -((-a) & ~0xFFFFL ); + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* documentation is in ftcalc.h */ + + FT_EXPORT_DEF( FT_Int32 ) + FT_Sqrt32( FT_Int32 x ) + { + FT_UInt32 val, root, newroot, mask; + + + root = 0; + mask = (FT_UInt32)0x40000000UL; + val = (FT_UInt32)x; + + do + { + newroot = root + mask; + if ( newroot <= val ) + { + val -= newroot; + root = newroot + mask; + } + + root >>= 1; + mask >>= 2; + + } while ( mask != 0 ); + + return root; + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + +#ifdef FT_LONG64 + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_MulDiv( FT_Long a, + FT_Long b, + FT_Long c ) + { + FT_Int s; + FT_Long d; + + + s = 1; + if ( a < 0 ) { a = -a; s = -1; } + if ( b < 0 ) { b = -b; s = -s; } + if ( c < 0 ) { c = -c; s = -s; } + + d = (FT_Long)( c > 0 ? ( (FT_Int64)a * b + ( c >> 1 ) ) / c + : 0x7FFFFFFFL ); + + return ( s > 0 ) ? d : -d; + } + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( FT_Long ) + FT_MulDiv_No_Round( FT_Long a, + FT_Long b, + FT_Long c ) + { + FT_Int s; + FT_Long d; + + + s = 1; + if ( a < 0 ) { a = -a; s = -1; } + if ( b < 0 ) { b = -b; s = -s; } + if ( c < 0 ) { c = -c; s = -s; } + + d = (FT_Long)( c > 0 ? (FT_Int64)a * b / c + : 0x7FFFFFFFL ); + + return ( s > 0 ) ? d : -d; + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_MulFix( FT_Long a, + FT_Long b ) + { +#ifdef FT_MULFIX_ASSEMBLER + + return FT_MULFIX_ASSEMBLER( a, b ); + +#else + + FT_Int s = 1; + FT_Long c; + + + if ( a < 0 ) + { + a = -a; + s = -1; + } + + if ( b < 0 ) + { + b = -b; + s = -s; + } + + c = (FT_Long)( ( (FT_Int64)a * b + 0x8000L ) >> 16 ); + + return ( s > 0 ) ? c : -c; + +#endif /* FT_MULFIX_ASSEMBLER */ + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_DivFix( FT_Long a, + FT_Long b ) + { + FT_Int32 s; + FT_UInt32 q; + + s = 1; + if ( a < 0 ) { a = -a; s = -1; } + if ( b < 0 ) { b = -b; s = -s; } + + if ( b == 0 ) + /* check for division by 0 */ + q = 0x7FFFFFFFL; + else + /* compute result directly */ + q = (FT_UInt32)( ( ( (FT_Int64)a << 16 ) + ( b >> 1 ) ) / b ); + + return ( s < 0 ? -(FT_Long)q : (FT_Long)q ); + } + + +#else /* !FT_LONG64 */ + + + static void + ft_multo64( FT_UInt32 x, + FT_UInt32 y, + FT_Int64 *z ) + { + FT_UInt32 lo1, hi1, lo2, hi2, lo, hi, i1, i2; + + + lo1 = x & 0x0000FFFFU; hi1 = x >> 16; + lo2 = y & 0x0000FFFFU; hi2 = y >> 16; + + lo = lo1 * lo2; + i1 = lo1 * hi2; + i2 = lo2 * hi1; + hi = hi1 * hi2; + + /* Check carry overflow of i1 + i2 */ + i1 += i2; + hi += (FT_UInt32)( i1 < i2 ) << 16; + + hi += i1 >> 16; + i1 = i1 << 16; + + /* Check carry overflow of i1 + lo */ + lo += i1; + hi += ( lo < i1 ); + + z->lo = lo; + z->hi = hi; + } + + + static FT_UInt32 + ft_div64by32( FT_UInt32 hi, + FT_UInt32 lo, + FT_UInt32 y ) + { + FT_UInt32 r, q; + FT_Int i; + + + q = 0; + r = hi; + + if ( r >= y ) + return (FT_UInt32)0x7FFFFFFFL; + + i = 32; + do + { + r <<= 1; + q <<= 1; + r |= lo >> 31; + + if ( r >= y ) + { + r -= y; + q |= 1; + } + lo <<= 1; + } while ( --i ); + + return q; + } + + + static void + FT_Add64( FT_Int64* x, + FT_Int64* y, + FT_Int64 *z ) + { + register FT_UInt32 lo, hi; + + + lo = x->lo + y->lo; + hi = x->hi + y->hi + ( lo < x->lo ); + + z->lo = lo; + z->hi = hi; + } + + + /* documentation is in freetype.h */ + + /* The FT_MulDiv function has been optimized thanks to ideas from */ + /* Graham Asher. The trick is to optimize computation when everything */ + /* fits within 32-bits (a rather common case). */ + /* */ + /* we compute 'a*b+c/2', then divide it by 'c'. (positive values) */ + /* */ + /* 46340 is FLOOR(SQRT(2^31-1)). */ + /* */ + /* if ( a <= 46340 && b <= 46340 ) then ( a*b <= 0x7FFEA810 ) */ + /* */ + /* 0x7FFFFFFF - 0x7FFEA810 = 0x157F0 */ + /* */ + /* if ( c < 0x157F0*2 ) then ( a*b+c/2 <= 0x7FFFFFFF ) */ + /* */ + /* and 2*0x157F0 = 176096 */ + /* */ + + FT_EXPORT_DEF( FT_Long ) + FT_MulDiv( FT_Long a, + FT_Long b, + FT_Long c ) + { + long s; + + + /* XXX: this function does not allow 64-bit arguments */ + if ( a == 0 || b == c ) + return a; + + s = a; a = FT_ABS( a ); + s ^= b; b = FT_ABS( b ); + s ^= c; c = FT_ABS( c ); + + if ( a <= 46340L && b <= 46340L && c <= 176095L && c > 0 ) + a = ( a * b + ( c >> 1 ) ) / c; + + else if ( (FT_Int32)c > 0 ) + { + FT_Int64 temp, temp2; + + + ft_multo64( (FT_Int32)a, (FT_Int32)b, &temp ); + + temp2.hi = 0; + temp2.lo = (FT_UInt32)(c >> 1); + FT_Add64( &temp, &temp2, &temp ); + a = ft_div64by32( temp.hi, temp.lo, (FT_Int32)c ); + } + else + a = 0x7FFFFFFFL; + + return ( s < 0 ? -a : a ); + } + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_BASE_DEF( FT_Long ) + FT_MulDiv_No_Round( FT_Long a, + FT_Long b, + FT_Long c ) + { + long s; + + + if ( a == 0 || b == c ) + return a; + + s = a; a = FT_ABS( a ); + s ^= b; b = FT_ABS( b ); + s ^= c; c = FT_ABS( c ); + + if ( a <= 46340L && b <= 46340L && c > 0 ) + a = a * b / c; + + else if ( (FT_Int32)c > 0 ) + { + FT_Int64 temp; + + + ft_multo64( (FT_Int32)a, (FT_Int32)b, &temp ); + a = ft_div64by32( temp.hi, temp.lo, (FT_Int32)c ); + } + else + a = 0x7FFFFFFFL; + + return ( s < 0 ? -a : a ); + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_MulFix( FT_Long a, + FT_Long b ) + { +#ifdef FT_MULFIX_ASSEMBLER + + return FT_MULFIX_ASSEMBLER( a, b ); + +#elif 0 + + /* + * This code is nonportable. See comment below. + * + * However, on a platform where right-shift of a signed quantity fills + * the leftmost bits by copying the sign bit, it might be faster. + */ + + FT_Long sa, sb; + FT_ULong ua, ub; + + + if ( a == 0 || b == 0x10000L ) + return a; + + /* + * This is a clever way of converting a signed number `a' into its + * absolute value (stored back into `a') and its sign. The sign is + * stored in `sa'; 0 means `a' was positive or zero, and -1 means `a' + * was negative. (Similarly for `b' and `sb'). + * + * Unfortunately, it doesn't work (at least not portably). + * + * It makes the assumption that right-shift on a negative signed value + * fills the leftmost bits by copying the sign bit. This is wrong. + * According to K&R 2nd ed, section `A7.8 Shift Operators' on page 206, + * the result of right-shift of a negative signed value is + * implementation-defined. At least one implementation fills the + * leftmost bits with 0s (i.e., it is exactly the same as an unsigned + * right shift). This means that when `a' is negative, `sa' ends up + * with the value 1 rather than -1. After that, everything else goes + * wrong. + */ + sa = ( a >> ( sizeof ( a ) * 8 - 1 ) ); + a = ( a ^ sa ) - sa; + sb = ( b >> ( sizeof ( b ) * 8 - 1 ) ); + b = ( b ^ sb ) - sb; + + ua = (FT_ULong)a; + ub = (FT_ULong)b; + + if ( ua <= 2048 && ub <= 1048576L ) + ua = ( ua * ub + 0x8000U ) >> 16; + else + { + FT_ULong al = ua & 0xFFFFU; + + + ua = ( ua >> 16 ) * ub + al * ( ub >> 16 ) + + ( ( al * ( ub & 0xFFFFU ) + 0x8000U ) >> 16 ); + } + + sa ^= sb, + ua = (FT_ULong)(( ua ^ sa ) - sa); + + return (FT_Long)ua; + +#else /* 0 */ + + FT_Long s; + FT_ULong ua, ub; + + + if ( a == 0 || b == 0x10000L ) + return a; + + s = a; a = FT_ABS( a ); + s ^= b; b = FT_ABS( b ); + + ua = (FT_ULong)a; + ub = (FT_ULong)b; + + if ( ua <= 2048 && ub <= 1048576L ) + ua = ( ua * ub + 0x8000UL ) >> 16; + else + { + FT_ULong al = ua & 0xFFFFUL; + + + ua = ( ua >> 16 ) * ub + al * ( ub >> 16 ) + + ( ( al * ( ub & 0xFFFFUL ) + 0x8000UL ) >> 16 ); + } + + return ( s < 0 ? -(FT_Long)ua : (FT_Long)ua ); + +#endif /* 0 */ + + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_DivFix( FT_Long a, + FT_Long b ) + { + FT_Int32 s; + FT_UInt32 q; + + + /* XXX: this function does not allow 64-bit arguments */ + s = (FT_Int32)a; a = FT_ABS( a ); + s ^= (FT_Int32)b; b = FT_ABS( b ); + + if ( (FT_UInt32)b == 0 ) + { + /* check for division by 0 */ + q = (FT_UInt32)0x7FFFFFFFL; + } + else if ( ( a >> 16 ) == 0 ) + { + /* compute result directly */ + q = (FT_UInt32)( ( a << 16 ) + ( b >> 1 ) ) / (FT_UInt32)b; + } + else + { + /* we need more bits; we have to do it by hand */ + FT_Int64 temp, temp2; + + + temp.hi = (FT_Int32) ( a >> 16 ); + temp.lo = (FT_UInt32)( a << 16 ); + temp2.hi = 0; + temp2.lo = (FT_UInt32)( b >> 1 ); + FT_Add64( &temp, &temp2, &temp ); + q = ft_div64by32( temp.hi, temp.lo, (FT_Int32)b ); + } + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + + +#if 0 + + /* documentation is in ftcalc.h */ + + FT_EXPORT_DEF( void ) + FT_MulTo64( FT_Int32 x, + FT_Int32 y, + FT_Int64 *z ) + { + FT_Int32 s; + + + s = x; x = FT_ABS( x ); + s ^= y; y = FT_ABS( y ); + + ft_multo64( x, y, z ); + + if ( s < 0 ) + { + z->lo = (FT_UInt32)-(FT_Int32)z->lo; + z->hi = ~z->hi + !( z->lo ); + } + } + + + /* apparently, the second version of this code is not compiled correctly */ + /* on Mac machines with the MPW C compiler.. tsk, tsk, tsk... */ + +#if 1 + + FT_EXPORT_DEF( FT_Int32 ) + FT_Div64by32( FT_Int64* x, + FT_Int32 y ) + { + FT_Int32 s; + FT_UInt32 q, r, i, lo; + + + s = x->hi; + if ( s < 0 ) + { + x->lo = (FT_UInt32)-(FT_Int32)x->lo; + x->hi = ~x->hi + !x->lo; + } + s ^= y; y = FT_ABS( y ); + + /* Shortcut */ + if ( x->hi == 0 ) + { + if ( y > 0 ) + q = x->lo / y; + else + q = 0x7FFFFFFFL; + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + + r = x->hi; + lo = x->lo; + + if ( r >= (FT_UInt32)y ) /* we know y is to be treated as unsigned here */ + return ( s < 0 ? 0x80000001UL : 0x7FFFFFFFUL ); + /* Return Max/Min Int32 if division overflow. */ + /* This includes division by zero! */ + q = 0; + for ( i = 0; i < 32; i++ ) + { + r <<= 1; + q <<= 1; + r |= lo >> 31; + + if ( r >= (FT_UInt32)y ) + { + r -= y; + q |= 1; + } + lo <<= 1; + } + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + +#else /* 0 */ + + FT_EXPORT_DEF( FT_Int32 ) + FT_Div64by32( FT_Int64* x, + FT_Int32 y ) + { + FT_Int32 s; + FT_UInt32 q; + + + s = x->hi; + if ( s < 0 ) + { + x->lo = (FT_UInt32)-(FT_Int32)x->lo; + x->hi = ~x->hi + !x->lo; + } + s ^= y; y = FT_ABS( y ); + + /* Shortcut */ + if ( x->hi == 0 ) + { + if ( y > 0 ) + q = ( x->lo + ( y >> 1 ) ) / y; + else + q = 0x7FFFFFFFL; + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + + q = ft_div64by32( x->hi, x->lo, y ); + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + +#endif /* 0 */ + +#endif /* 0 */ + + +#endif /* FT_LONG64 */ + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( void ) + FT_Matrix_Multiply( const FT_Matrix* a, + FT_Matrix *b ) + { + FT_Fixed xx, xy, yx, yy; + + + if ( !a || !b ) + return; + + xx = FT_MulFix( a->xx, b->xx ) + FT_MulFix( a->xy, b->yx ); + xy = FT_MulFix( a->xx, b->xy ) + FT_MulFix( a->xy, b->yy ); + yx = FT_MulFix( a->yx, b->xx ) + FT_MulFix( a->yy, b->yx ); + yy = FT_MulFix( a->yx, b->xy ) + FT_MulFix( a->yy, b->yy ); + + b->xx = xx; b->xy = xy; + b->yx = yx; b->yy = yy; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Matrix_Invert( FT_Matrix* matrix ) + { + FT_Pos delta, xx, yy; + + + if ( !matrix ) + return FT_Err_Invalid_Argument; + + /* compute discriminant */ + delta = FT_MulFix( matrix->xx, matrix->yy ) - + FT_MulFix( matrix->xy, matrix->yx ); + + if ( !delta ) + return FT_Err_Invalid_Argument; /* matrix can't be inverted */ + + matrix->xy = - FT_DivFix( matrix->xy, delta ); + matrix->yx = - FT_DivFix( matrix->yx, delta ); + + xx = matrix->xx; + yy = matrix->yy; + + matrix->xx = FT_DivFix( yy, delta ); + matrix->yy = FT_DivFix( xx, delta ); + + return FT_Err_Ok; + } + + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( void ) + FT_Matrix_Multiply_Scaled( const FT_Matrix* a, + FT_Matrix *b, + FT_Long scaling ) + { + FT_Fixed xx, xy, yx, yy; + + FT_Long val = 0x10000L * scaling; + + + if ( !a || !b ) + return; + + xx = FT_MulDiv( a->xx, b->xx, val ) + FT_MulDiv( a->xy, b->yx, val ); + xy = FT_MulDiv( a->xx, b->xy, val ) + FT_MulDiv( a->xy, b->yy, val ); + yx = FT_MulDiv( a->yx, b->xx, val ) + FT_MulDiv( a->yy, b->yx, val ); + yy = FT_MulDiv( a->yx, b->xy, val ) + FT_MulDiv( a->yy, b->yy, val ); + + b->xx = xx; b->xy = xy; + b->yx = yx; b->yy = yy; + } + + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( void ) + FT_Vector_Transform_Scaled( FT_Vector* vector, + const FT_Matrix* matrix, + FT_Long scaling ) + { + FT_Pos xz, yz; + + FT_Long val = 0x10000L * scaling; + + + if ( !vector || !matrix ) + return; + + xz = FT_MulDiv( vector->x, matrix->xx, val ) + + FT_MulDiv( vector->y, matrix->xy, val ); + + yz = FT_MulDiv( vector->x, matrix->yx, val ) + + FT_MulDiv( vector->y, matrix->yy, val ); + + vector->x = xz; + vector->y = yz; + } + + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( FT_Int32 ) + FT_SqrtFixed( FT_Int32 x ) + { + FT_UInt32 root, rem_hi, rem_lo, test_div; + FT_Int count; + + + root = 0; + + if ( x > 0 ) + { + rem_hi = 0; + rem_lo = x; + count = 24; + do + { + rem_hi = ( rem_hi << 2 ) | ( rem_lo >> 30 ); + rem_lo <<= 2; + root <<= 1; + test_div = ( root << 1 ) + 1; + + if ( rem_hi >= test_div ) + { + rem_hi -= test_div; + root += 1; + } + } while ( --count ); + } + + return (FT_Int32)root; + } + + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( FT_Int ) + ft_corner_orientation( FT_Pos in_x, + FT_Pos in_y, + FT_Pos out_x, + FT_Pos out_y ) + { + FT_Long result; /* avoid overflow on 16-bit system */ + + + /* deal with the trivial cases quickly */ + if ( in_y == 0 ) + { + if ( in_x >= 0 ) + result = out_y; + else + result = -out_y; + } + else if ( in_x == 0 ) + { + if ( in_y >= 0 ) + result = -out_x; + else + result = out_x; + } + else if ( out_y == 0 ) + { + if ( out_x >= 0 ) + result = in_y; + else + result = -in_y; + } + else if ( out_x == 0 ) + { + if ( out_y >= 0 ) + result = -in_x; + else + result = in_x; + } + else /* general case */ + { +#ifdef FT_LONG64 + + FT_Int64 delta = (FT_Int64)in_x * out_y - (FT_Int64)in_y * out_x; + + + if ( delta == 0 ) + result = 0; + else + result = 1 - 2 * ( delta < 0 ); + +#else + + FT_Int64 z1, z2; + + + /* XXX: this function does not allow 64-bit arguments */ + ft_multo64( (FT_Int32)in_x, (FT_Int32)out_y, &z1 ); + ft_multo64( (FT_Int32)in_y, (FT_Int32)out_x, &z2 ); + + if ( z1.hi > z2.hi ) + result = +1; + else if ( z1.hi < z2.hi ) + result = -1; + else if ( z1.lo > z2.lo ) + result = +1; + else if ( z1.lo < z2.lo ) + result = -1; + else + result = 0; + +#endif + } + + /* XXX: only the sign of return value, +1/0/-1 must be used */ + return (FT_Int)result; + } + + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( FT_Int ) + ft_corner_is_flat( FT_Pos in_x, + FT_Pos in_y, + FT_Pos out_x, + FT_Pos out_y ) + { + FT_Pos ax = in_x; + FT_Pos ay = in_y; + + FT_Pos d_in, d_out, d_corner; + + + if ( ax < 0 ) + ax = -ax; + if ( ay < 0 ) + ay = -ay; + d_in = ax + ay; + + ax = out_x; + if ( ax < 0 ) + ax = -ax; + ay = out_y; + if ( ay < 0 ) + ay = -ay; + d_out = ax + ay; + + ax = out_x + in_x; + if ( ax < 0 ) + ax = -ax; + ay = out_y + in_y; + if ( ay < 0 ) + ay = -ay; + d_corner = ax + ay; + + return ( d_in + d_out - d_corner ) < ( d_corner >> 4 ); + } + + +/* END */ diff --git a/src/base/ftcid.c b/src/base/ftcid.c new file mode 100644 index 0000000..733aae1 --- /dev/null +++ b/src/base/ftcid.c @@ -0,0 +1,117 @@ +/***************************************************************************/ +/* */ +/* ftcid.c */ +/* */ +/* FreeType API for accessing CID font information. */ +/* */ +/* Copyright 2007, 2009 by Derek Clegg, Michael Toftdal. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_CID_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_CID_H + + + /* documentation is in ftcid.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_CID_Registry_Ordering_Supplement( FT_Face face, + const char* *registry, + const char* *ordering, + FT_Int *supplement) + { + FT_Error error; + const char* r = NULL; + const char* o = NULL; + FT_Int s = 0; + + + error = FT_Err_Invalid_Argument; + + if ( face ) + { + FT_Service_CID service; + + + FT_FACE_FIND_SERVICE( face, service, CID ); + + if ( service && service->get_ros ) + error = service->get_ros( face, &r, &o, &s ); + } + + if ( registry ) + *registry = r; + + if ( ordering ) + *ordering = o; + + if ( supplement ) + *supplement = s; + + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Get_CID_Is_Internally_CID_Keyed( FT_Face face, + FT_Bool *is_cid ) + { + FT_Error error = FT_Err_Invalid_Argument; + FT_Bool ic = 0; + + + if ( face ) + { + FT_Service_CID service; + + + FT_FACE_FIND_SERVICE( face, service, CID ); + + if ( service && service->get_is_cid ) + error = service->get_is_cid( face, &ic); + } + + if ( is_cid ) + *is_cid = ic; + + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Get_CID_From_Glyph_Index( FT_Face face, + FT_UInt glyph_index, + FT_UInt *cid ) + { + FT_Error error = FT_Err_Invalid_Argument; + FT_UInt c = 0; + + + if ( face ) + { + FT_Service_CID service; + + + FT_FACE_FIND_SERVICE( face, service, CID ); + + if ( service && service->get_cid_from_glyph_index ) + error = service->get_cid_from_glyph_index( face, glyph_index, &c); + } + + if ( cid ) + *cid = c; + + return error; + } + + +/* END */ diff --git a/src/base/ftdbgmem.c b/src/base/ftdbgmem.c new file mode 100644 index 0000000..12fed04 --- /dev/null +++ b/src/base/ftdbgmem.c @@ -0,0 +1,997 @@ +/***************************************************************************/ +/* */ +/* ftdbgmem.c */ +/* */ +/* Memory debugger (body). */ +/* */ +/* Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_MEMORY_H +#include FT_SYSTEM_H +#include FT_ERRORS_H +#include FT_TYPES_H + + +#ifdef FT_DEBUG_MEMORY + +#define KEEPALIVE /* `Keep alive' means that freed blocks aren't released + * to the heap. This is useful to detect double-frees + * or weird heap corruption, but it uses large amounts of + * memory, however. + */ + +#include FT_CONFIG_STANDARD_LIBRARY_H + + FT_BASE_DEF( const char* ) _ft_debug_file = 0; + FT_BASE_DEF( long ) _ft_debug_lineno = 0; + + extern void + FT_DumpMemory( FT_Memory memory ); + + + typedef struct FT_MemSourceRec_* FT_MemSource; + typedef struct FT_MemNodeRec_* FT_MemNode; + typedef struct FT_MemTableRec_* FT_MemTable; + + +#define FT_MEM_VAL( addr ) ((FT_PtrDist)(FT_Pointer)( addr )) + + /* + * This structure holds statistics for a single allocation/release + * site. This is useful to know where memory operations happen the + * most. + */ + typedef struct FT_MemSourceRec_ + { + const char* file_name; + long line_no; + + FT_Long cur_blocks; /* current number of allocated blocks */ + FT_Long max_blocks; /* max. number of allocated blocks */ + FT_Long all_blocks; /* total number of blocks allocated */ + + FT_Long cur_size; /* current cumulative allocated size */ + FT_Long max_size; /* maximum cumulative allocated size */ + FT_Long all_size; /* total cumulative allocated size */ + + FT_Long cur_max; /* current maximum allocated size */ + + FT_UInt32 hash; + FT_MemSource link; + + } FT_MemSourceRec; + + + /* + * We don't need a resizable array for the memory sources, because + * their number is pretty limited within FreeType. + */ +#define FT_MEM_SOURCE_BUCKETS 128 + + /* + * This structure holds information related to a single allocated + * memory block. If KEEPALIVE is defined, blocks that are freed by + * FreeType are never released to the system. Instead, their `size' + * field is set to -size. This is mainly useful to detect double frees, + * at the price of large memory footprint during execution. + */ + typedef struct FT_MemNodeRec_ + { + FT_Byte* address; + FT_Long size; /* < 0 if the block was freed */ + + FT_MemSource source; + +#ifdef KEEPALIVE + const char* free_file_name; + FT_Long free_line_no; +#endif + + FT_MemNode link; + + } FT_MemNodeRec; + + + /* + * The global structure, containing compound statistics and all hash + * tables. + */ + typedef struct FT_MemTableRec_ + { + FT_ULong size; + FT_ULong nodes; + FT_MemNode* buckets; + + FT_ULong alloc_total; + FT_ULong alloc_current; + FT_ULong alloc_max; + FT_ULong alloc_count; + + FT_Bool bound_total; + FT_ULong alloc_total_max; + + FT_Bool bound_count; + FT_ULong alloc_count_max; + + FT_MemSource sources[FT_MEM_SOURCE_BUCKETS]; + + FT_Bool keep_alive; + + FT_Memory memory; + FT_Pointer memory_user; + FT_Alloc_Func alloc; + FT_Free_Func free; + FT_Realloc_Func realloc; + + } FT_MemTableRec; + + +#define FT_MEM_SIZE_MIN 7 +#define FT_MEM_SIZE_MAX 13845163 + +#define FT_FILENAME( x ) ((x) ? (x) : "unknown file") + + + /* + * Prime numbers are ugly to handle. It would be better to implement + * L-Hashing, which is 10% faster and doesn't require divisions. + */ + static const FT_UInt ft_mem_primes[] = + { + 7, + 11, + 19, + 37, + 73, + 109, + 163, + 251, + 367, + 557, + 823, + 1237, + 1861, + 2777, + 4177, + 6247, + 9371, + 14057, + 21089, + 31627, + 47431, + 71143, + 106721, + 160073, + 240101, + 360163, + 540217, + 810343, + 1215497, + 1823231, + 2734867, + 4102283, + 6153409, + 9230113, + 13845163, + }; + + + static FT_ULong + ft_mem_closest_prime( FT_ULong num ) + { + FT_UInt i; + + + for ( i = 0; + i < sizeof ( ft_mem_primes ) / sizeof ( ft_mem_primes[0] ); i++ ) + if ( ft_mem_primes[i] > num ) + return ft_mem_primes[i]; + + return FT_MEM_SIZE_MAX; + } + + + extern void + ft_mem_debug_panic( const char* fmt, + ... ) + { + va_list ap; + + + printf( "FreeType.Debug: " ); + + va_start( ap, fmt ); + vprintf( fmt, ap ); + va_end( ap ); + + printf( "\n" ); + exit( EXIT_FAILURE ); + } + + + static FT_Pointer + ft_mem_table_alloc( FT_MemTable table, + FT_Long size ) + { + FT_Memory memory = table->memory; + FT_Pointer block; + + + memory->user = table->memory_user; + block = table->alloc( memory, size ); + memory->user = table; + + return block; + } + + + static void + ft_mem_table_free( FT_MemTable table, + FT_Pointer block ) + { + FT_Memory memory = table->memory; + + + memory->user = table->memory_user; + table->free( memory, block ); + memory->user = table; + } + + + static void + ft_mem_table_resize( FT_MemTable table ) + { + FT_ULong new_size; + + + new_size = ft_mem_closest_prime( table->nodes ); + if ( new_size != table->size ) + { + FT_MemNode* new_buckets; + FT_ULong i; + + + new_buckets = (FT_MemNode *) + ft_mem_table_alloc( table, + new_size * sizeof ( FT_MemNode ) ); + if ( new_buckets == NULL ) + return; + + FT_ARRAY_ZERO( new_buckets, new_size ); + + for ( i = 0; i < table->size; i++ ) + { + FT_MemNode node, next, *pnode; + FT_PtrDist hash; + + + node = table->buckets[i]; + while ( node ) + { + next = node->link; + hash = FT_MEM_VAL( node->address ) % new_size; + pnode = new_buckets + hash; + + node->link = pnode[0]; + pnode[0] = node; + + node = next; + } + } + + if ( table->buckets ) + ft_mem_table_free( table, table->buckets ); + + table->buckets = new_buckets; + table->size = new_size; + } + } + + + static FT_MemTable + ft_mem_table_new( FT_Memory memory ) + { + FT_MemTable table; + + + table = (FT_MemTable)memory->alloc( memory, sizeof ( *table ) ); + if ( table == NULL ) + goto Exit; + + FT_ZERO( table ); + + table->size = FT_MEM_SIZE_MIN; + table->nodes = 0; + + table->memory = memory; + + table->memory_user = memory->user; + + table->alloc = memory->alloc; + table->realloc = memory->realloc; + table->free = memory->free; + + table->buckets = (FT_MemNode *) + memory->alloc( memory, + table->size * sizeof ( FT_MemNode ) ); + if ( table->buckets ) + FT_ARRAY_ZERO( table->buckets, table->size ); + else + { + memory->free( memory, table ); + table = NULL; + } + + Exit: + return table; + } + + + static void + ft_mem_table_destroy( FT_MemTable table ) + { + FT_ULong i; + + + FT_DumpMemory( table->memory ); + + if ( table ) + { + FT_Long leak_count = 0; + FT_ULong leaks = 0; + + + /* remove all blocks from the table, revealing leaked ones */ + for ( i = 0; i < table->size; i++ ) + { + FT_MemNode *pnode = table->buckets + i, next, node = *pnode; + + + while ( node ) + { + next = node->link; + node->link = 0; + + if ( node->size > 0 ) + { + printf( + "leaked memory block at address %p, size %8ld in (%s:%ld)\n", + node->address, node->size, + FT_FILENAME( node->source->file_name ), + node->source->line_no ); + + leak_count++; + leaks += node->size; + + ft_mem_table_free( table, node->address ); + } + + node->address = NULL; + node->size = 0; + + ft_mem_table_free( table, node ); + node = next; + } + table->buckets[i] = 0; + } + + ft_mem_table_free( table, table->buckets ); + table->buckets = NULL; + + table->size = 0; + table->nodes = 0; + + /* remove all sources */ + for ( i = 0; i < FT_MEM_SOURCE_BUCKETS; i++ ) + { + FT_MemSource source, next; + + + for ( source = table->sources[i]; source != NULL; source = next ) + { + next = source->link; + ft_mem_table_free( table, source ); + } + + table->sources[i] = NULL; + } + + printf( + "FreeType: total memory allocations = %ld\n", table->alloc_total ); + printf( + "FreeType: maximum memory footprint = %ld\n", table->alloc_max ); + + ft_mem_table_free( table, table ); + + if ( leak_count > 0 ) + ft_mem_debug_panic( + "FreeType: %ld bytes of memory leaked in %ld blocks\n", + leaks, leak_count ); + + printf( "FreeType: no memory leaks detected\n" ); + } + } + + + static FT_MemNode* + ft_mem_table_get_nodep( FT_MemTable table, + FT_Byte* address ) + { + FT_PtrDist hash; + FT_MemNode *pnode, node; + + + hash = FT_MEM_VAL( address ); + pnode = table->buckets + ( hash % table->size ); + + for (;;) + { + node = pnode[0]; + if ( !node ) + break; + + if ( node->address == address ) + break; + + pnode = &node->link; + } + return pnode; + } + + + static FT_MemSource + ft_mem_table_get_source( FT_MemTable table ) + { + FT_UInt32 hash; + FT_MemSource node, *pnode; + + + /* cast to FT_PtrDist first since void* can be larger */ + /* than FT_UInt32 and GCC 4.1.1 emits a warning */ + hash = (FT_UInt32)(FT_PtrDist)(void*)_ft_debug_file + + (FT_UInt32)( 5 * _ft_debug_lineno ); + pnode = &table->sources[hash % FT_MEM_SOURCE_BUCKETS]; + + for ( ;; ) + { + node = *pnode; + if ( node == NULL ) + break; + + if ( node->file_name == _ft_debug_file && + node->line_no == _ft_debug_lineno ) + goto Exit; + + pnode = &node->link; + } + + node = (FT_MemSource)ft_mem_table_alloc( table, sizeof ( *node ) ); + if ( node == NULL ) + ft_mem_debug_panic( + "not enough memory to perform memory debugging\n" ); + + node->file_name = _ft_debug_file; + node->line_no = _ft_debug_lineno; + + node->cur_blocks = 0; + node->max_blocks = 0; + node->all_blocks = 0; + + node->cur_size = 0; + node->max_size = 0; + node->all_size = 0; + + node->cur_max = 0; + + node->link = NULL; + node->hash = hash; + *pnode = node; + + Exit: + return node; + } + + + static void + ft_mem_table_set( FT_MemTable table, + FT_Byte* address, + FT_ULong size, + FT_Long delta ) + { + FT_MemNode *pnode, node; + + + if ( table ) + { + FT_MemSource source; + + + pnode = ft_mem_table_get_nodep( table, address ); + node = *pnode; + if ( node ) + { + if ( node->size < 0 ) + { + /* This block was already freed. Our memory is now completely */ + /* corrupted! */ + /* This can only happen in keep-alive mode. */ + ft_mem_debug_panic( + "memory heap corrupted (allocating freed block)" ); + } + else + { + /* This block was already allocated. This means that our memory */ + /* is also corrupted! */ + ft_mem_debug_panic( + "memory heap corrupted (re-allocating allocated block at" + " %p, of size %ld)\n" + "org=%s:%d new=%s:%d\n", + node->address, node->size, + FT_FILENAME( node->source->file_name ), node->source->line_no, + FT_FILENAME( _ft_debug_file ), _ft_debug_lineno ); + } + } + + /* we need to create a new node in this table */ + node = (FT_MemNode)ft_mem_table_alloc( table, sizeof ( *node ) ); + if ( node == NULL ) + ft_mem_debug_panic( "not enough memory to run memory tests" ); + + node->address = address; + node->size = size; + node->source = source = ft_mem_table_get_source( table ); + + if ( delta == 0 ) + { + /* this is an allocation */ + source->all_blocks++; + source->cur_blocks++; + if ( source->cur_blocks > source->max_blocks ) + source->max_blocks = source->cur_blocks; + } + + if ( size > (FT_ULong)source->cur_max ) + source->cur_max = size; + + if ( delta != 0 ) + { + /* we are growing or shrinking a reallocated block */ + source->cur_size += delta; + table->alloc_current += delta; + } + else + { + /* we are allocating a new block */ + source->cur_size += size; + table->alloc_current += size; + } + + source->all_size += size; + + if ( source->cur_size > source->max_size ) + source->max_size = source->cur_size; + + node->free_file_name = NULL; + node->free_line_no = 0; + + node->link = pnode[0]; + + pnode[0] = node; + table->nodes++; + + table->alloc_total += size; + + if ( table->alloc_current > table->alloc_max ) + table->alloc_max = table->alloc_current; + + if ( table->nodes * 3 < table->size || + table->size * 3 < table->nodes ) + ft_mem_table_resize( table ); + } + } + + + static void + ft_mem_table_remove( FT_MemTable table, + FT_Byte* address, + FT_Long delta ) + { + if ( table ) + { + FT_MemNode *pnode, node; + + + pnode = ft_mem_table_get_nodep( table, address ); + node = *pnode; + if ( node ) + { + FT_MemSource source; + + + if ( node->size < 0 ) + ft_mem_debug_panic( + "freeing memory block at %p more than once at (%s:%ld)\n" + "block allocated at (%s:%ld) and released at (%s:%ld)", + address, + FT_FILENAME( _ft_debug_file ), _ft_debug_lineno, + FT_FILENAME( node->source->file_name ), node->source->line_no, + FT_FILENAME( node->free_file_name ), node->free_line_no ); + + /* scramble the node's content for additional safety */ + FT_MEM_SET( address, 0xF3, node->size ); + + if ( delta == 0 ) + { + source = node->source; + + source->cur_blocks--; + source->cur_size -= node->size; + + table->alloc_current -= node->size; + } + + if ( table->keep_alive ) + { + /* we simply invert the node's size to indicate that the node */ + /* was freed. */ + node->size = -node->size; + node->free_file_name = _ft_debug_file; + node->free_line_no = _ft_debug_lineno; + } + else + { + table->nodes--; + + *pnode = node->link; + + node->size = 0; + node->source = NULL; + + ft_mem_table_free( table, node ); + + if ( table->nodes * 3 < table->size || + table->size * 3 < table->nodes ) + ft_mem_table_resize( table ); + } + } + else + ft_mem_debug_panic( + "trying to free unknown block at %p in (%s:%ld)\n", + address, + FT_FILENAME( _ft_debug_file ), _ft_debug_lineno ); + } + } + + + extern FT_Pointer + ft_mem_debug_alloc( FT_Memory memory, + FT_Long size ) + { + FT_MemTable table = (FT_MemTable)memory->user; + FT_Byte* block; + + + if ( size <= 0 ) + ft_mem_debug_panic( "negative block size allocation (%ld)", size ); + + /* return NULL if the maximum number of allocations was reached */ + if ( table->bound_count && + table->alloc_count >= table->alloc_count_max ) + return NULL; + + /* return NULL if this allocation would overflow the maximum heap size */ + if ( table->bound_total && + table->alloc_total_max - table->alloc_current > (FT_ULong)size ) + return NULL; + + block = (FT_Byte *)ft_mem_table_alloc( table, size ); + if ( block ) + { + ft_mem_table_set( table, block, (FT_ULong)size, 0 ); + + table->alloc_count++; + } + + _ft_debug_file = "<unknown>"; + _ft_debug_lineno = 0; + + return (FT_Pointer)block; + } + + + extern void + ft_mem_debug_free( FT_Memory memory, + FT_Pointer block ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( block == NULL ) + ft_mem_debug_panic( "trying to free NULL in (%s:%ld)", + FT_FILENAME( _ft_debug_file ), + _ft_debug_lineno ); + + ft_mem_table_remove( table, (FT_Byte*)block, 0 ); + + if ( !table->keep_alive ) + ft_mem_table_free( table, block ); + + table->alloc_count--; + + _ft_debug_file = "<unknown>"; + _ft_debug_lineno = 0; + } + + + extern FT_Pointer + ft_mem_debug_realloc( FT_Memory memory, + FT_Long cur_size, + FT_Long new_size, + FT_Pointer block ) + { + FT_MemTable table = (FT_MemTable)memory->user; + FT_MemNode node, *pnode; + FT_Pointer new_block; + FT_Long delta; + + const char* file_name = FT_FILENAME( _ft_debug_file ); + FT_Long line_no = _ft_debug_lineno; + + + /* unlikely, but possible */ + if ( new_size == cur_size ) + return block; + + /* the following is valid according to ANSI C */ +#if 0 + if ( block == NULL || cur_size == 0 ) + ft_mem_debug_panic( "trying to reallocate NULL in (%s:%ld)", + file_name, line_no ); +#endif + + /* while the following is allowed in ANSI C also, we abort since */ + /* such case should be handled by FreeType. */ + if ( new_size <= 0 ) + ft_mem_debug_panic( + "trying to reallocate %p to size 0 (current is %ld) in (%s:%ld)", + block, cur_size, file_name, line_no ); + + /* check `cur_size' value */ + pnode = ft_mem_table_get_nodep( table, (FT_Byte*)block ); + node = *pnode; + if ( !node ) + ft_mem_debug_panic( + "trying to reallocate unknown block at %p in (%s:%ld)", + block, file_name, line_no ); + + if ( node->size <= 0 ) + ft_mem_debug_panic( + "trying to reallocate freed block at %p in (%s:%ld)", + block, file_name, line_no ); + + if ( node->size != cur_size ) + ft_mem_debug_panic( "invalid ft_realloc request for %p. cur_size is " + "%ld instead of %ld in (%s:%ld)", + block, cur_size, node->size, file_name, line_no ); + + /* return NULL if the maximum number of allocations was reached */ + if ( table->bound_count && + table->alloc_count >= table->alloc_count_max ) + return NULL; + + delta = (FT_Long)( new_size - cur_size ); + + /* return NULL if this allocation would overflow the maximum heap size */ + if ( delta > 0 && + table->bound_total && + table->alloc_current + (FT_ULong)delta > table->alloc_total_max ) + return NULL; + + new_block = (FT_Byte *)ft_mem_table_alloc( table, new_size ); + if ( new_block == NULL ) + return NULL; + + ft_mem_table_set( table, (FT_Byte*)new_block, new_size, delta ); + + ft_memcpy( new_block, block, cur_size < new_size ? cur_size : new_size ); + + ft_mem_table_remove( table, (FT_Byte*)block, delta ); + + _ft_debug_file = "<unknown>"; + _ft_debug_lineno = 0; + + if ( !table->keep_alive ) + ft_mem_table_free( table, block ); + + return new_block; + } + + + extern FT_Int + ft_mem_debug_init( FT_Memory memory ) + { + FT_MemTable table; + FT_Int result = 0; + + + if ( getenv( "FT2_DEBUG_MEMORY" ) ) + { + table = ft_mem_table_new( memory ); + if ( table ) + { + const char* p; + + + memory->user = table; + memory->alloc = ft_mem_debug_alloc; + memory->realloc = ft_mem_debug_realloc; + memory->free = ft_mem_debug_free; + + p = getenv( "FT2_ALLOC_TOTAL_MAX" ); + if ( p != NULL ) + { + FT_Long total_max = ft_atol( p ); + + + if ( total_max > 0 ) + { + table->bound_total = 1; + table->alloc_total_max = (FT_ULong)total_max; + } + } + + p = getenv( "FT2_ALLOC_COUNT_MAX" ); + if ( p != NULL ) + { + FT_Long total_count = ft_atol( p ); + + + if ( total_count > 0 ) + { + table->bound_count = 1; + table->alloc_count_max = (FT_ULong)total_count; + } + } + + p = getenv( "FT2_KEEP_ALIVE" ); + if ( p != NULL ) + { + FT_Long keep_alive = ft_atol( p ); + + + if ( keep_alive > 0 ) + table->keep_alive = 1; + } + + result = 1; + } + } + return result; + } + + + extern void + ft_mem_debug_done( FT_Memory memory ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( table ) + { + memory->free = table->free; + memory->realloc = table->realloc; + memory->alloc = table->alloc; + + ft_mem_table_destroy( table ); + memory->user = NULL; + } + } + + + + static int + ft_mem_source_compare( const void* p1, + const void* p2 ) + { + FT_MemSource s1 = *(FT_MemSource*)p1; + FT_MemSource s2 = *(FT_MemSource*)p2; + + + if ( s2->max_size > s1->max_size ) + return 1; + else if ( s2->max_size < s1->max_size ) + return -1; + else + return 0; + } + + + extern void + FT_DumpMemory( FT_Memory memory ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( table ) + { + FT_MemSource* bucket = table->sources; + FT_MemSource* limit = bucket + FT_MEM_SOURCE_BUCKETS; + FT_MemSource* sources; + FT_UInt nn, count; + const char* fmt; + + + count = 0; + for ( ; bucket < limit; bucket++ ) + { + FT_MemSource source = *bucket; + + + for ( ; source; source = source->link ) + count++; + } + + sources = (FT_MemSource*)ft_mem_table_alloc( + table, sizeof ( *sources ) * count ); + + count = 0; + for ( bucket = table->sources; bucket < limit; bucket++ ) + { + FT_MemSource source = *bucket; + + + for ( ; source; source = source->link ) + sources[count++] = source; + } + + ft_qsort( sources, count, sizeof ( *sources ), ft_mem_source_compare ); + + printf( "FreeType Memory Dump: " + "current=%ld max=%ld total=%ld count=%ld\n", + table->alloc_current, table->alloc_max, + table->alloc_total, table->alloc_count ); + printf( " block block sizes sizes sizes source\n" ); + printf( " count high sum highsum max location\n" ); + printf( "-------------------------------------------------\n" ); + + fmt = "%6ld %6ld %8ld %8ld %8ld %s:%d\n"; + + for ( nn = 0; nn < count; nn++ ) + { + FT_MemSource source = sources[nn]; + + + printf( fmt, + source->cur_blocks, source->max_blocks, + source->cur_size, source->max_size, source->cur_max, + FT_FILENAME( source->file_name ), + source->line_no ); + } + printf( "------------------------------------------------\n" ); + + ft_mem_table_free( table, sources ); + } + } + +#else /* !FT_DEBUG_MEMORY */ + + /* ANSI C doesn't like empty source files */ + typedef int _debug_mem_dummy; + +#endif /* !FT_DEBUG_MEMORY */ + + +/* END */ diff --git a/src/base/ftdebug.c b/src/base/ftdebug.c new file mode 100644 index 0000000..2adbeab --- /dev/null +++ b/src/base/ftdebug.c @@ -0,0 +1,246 @@ +/***************************************************************************/ +/* */ +/* ftdebug.c */ +/* */ +/* Debugging and logging component (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This component contains various macros and functions used to ease the */ + /* debugging of the FreeType engine. Its main purpose is in assertion */ + /* checking, tracing, and error detection. */ + /* */ + /* There are now three debugging modes: */ + /* */ + /* - trace mode */ + /* */ + /* Error and trace messages are sent to the log file (which can be the */ + /* standard error output). */ + /* */ + /* - error mode */ + /* */ + /* Only error messages are generated. */ + /* */ + /* - release mode: */ + /* */ + /* No error message is sent or generated. The code is free from any */ + /* debugging parts. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_DEBUG_H + + +#ifdef FT_DEBUG_LEVEL_ERROR + + /* documentation is in ftdebug.h */ + + FT_BASE_DEF( void ) + FT_Message( const char* fmt, ... ) + { + va_list ap; + + + va_start( ap, fmt ); + vfprintf( stderr, fmt, ap ); + va_end( ap ); + } + + + /* documentation is in ftdebug.h */ + + FT_BASE_DEF( void ) + FT_Panic( const char* fmt, ... ) + { + va_list ap; + + + va_start( ap, fmt ); + vfprintf( stderr, fmt, ap ); + va_end( ap ); + + exit( EXIT_FAILURE ); + } + +#endif /* FT_DEBUG_LEVEL_ERROR */ + + + +#ifdef FT_DEBUG_LEVEL_TRACE + + /* array of trace levels, initialized to 0 */ + int ft_trace_levels[trace_count]; + + + /* define array of trace toggle names */ +#define FT_TRACE_DEF( x ) #x , + + static const char* ft_trace_toggles[trace_count + 1] = + { +#include FT_INTERNAL_TRACE_H + NULL + }; + +#undef FT_TRACE_DEF + + + /* documentation is in ftdebug.h */ + + FT_BASE_DEF( FT_Int ) + FT_Trace_Get_Count( void ) + { + return trace_count; + } + + + /* documentation is in ftdebug.h */ + + FT_BASE_DEF( const char * ) + FT_Trace_Get_Name( FT_Int idx ) + { + int max = FT_Trace_Get_Count(); + + + if ( idx < max ) + return ft_trace_toggles[idx]; + else + return NULL; + } + + + /*************************************************************************/ + /* */ + /* Initialize the tracing sub-system. This is done by retrieving the */ + /* value of the `FT2_DEBUG' environment variable. It must be a list of */ + /* toggles, separated by spaces, `;', or `,'. Example: */ + /* */ + /* export FT2_DEBUG="any:3 memory:7 stream:5" */ + /* */ + /* This requests that all levels be set to 3, except the trace level for */ + /* the memory and stream components which are set to 7 and 5, */ + /* respectively. */ + /* */ + /* See the file <include/freetype/internal/fttrace.h> for details of the */ + /* available toggle names. */ + /* */ + /* The level must be between 0 and 7; 0 means quiet (except for serious */ + /* runtime errors), and 7 means _very_ verbose. */ + /* */ + FT_BASE_DEF( void ) + ft_debug_init( void ) + { + const char* ft2_debug = getenv( "FT2_DEBUG" ); + + + if ( ft2_debug ) + { + const char* p = ft2_debug; + const char* q; + + + for ( ; *p; p++ ) + { + /* skip leading whitespace and separators */ + if ( *p == ' ' || *p == '\t' || *p == ',' || *p == ';' || *p == '=' ) + continue; + + /* read toggle name, followed by ':' */ + q = p; + while ( *p && *p != ':' ) + p++; + + if ( *p == ':' && p > q ) + { + FT_Int n, i, len = (FT_Int)( p - q ); + FT_Int level = -1, found = -1; + + + for ( n = 0; n < trace_count; n++ ) + { + const char* toggle = ft_trace_toggles[n]; + + + for ( i = 0; i < len; i++ ) + { + if ( toggle[i] != q[i] ) + break; + } + + if ( i == len && toggle[i] == 0 ) + { + found = n; + break; + } + } + + /* read level */ + p++; + if ( *p ) + { + level = *p++ - '0'; + if ( level < 0 || level > 7 ) + level = -1; + } + + if ( found >= 0 && level >= 0 ) + { + if ( found == trace_any ) + { + /* special case for `any' */ + for ( n = 0; n < trace_count; n++ ) + ft_trace_levels[n] = level; + } + else + ft_trace_levels[found] = level; + } + } + } + } + } + + +#else /* !FT_DEBUG_LEVEL_TRACE */ + + + FT_BASE_DEF( void ) + ft_debug_init( void ) + { + /* nothing */ + } + + + FT_BASE_DEF( FT_Int ) + FT_Trace_Get_Count( void ) + { + return 0; + } + + + FT_BASE_DEF( const char * ) + FT_Trace_Get_Name( FT_Int idx ) + { + FT_UNUSED( idx ); + + return NULL; + } + + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + + +/* END */ diff --git a/src/base/ftfstype.c b/src/base/ftfstype.c new file mode 100644 index 0000000..d0ef7b7 --- /dev/null +++ b/src/base/ftfstype.c @@ -0,0 +1,62 @@ +/***************************************************************************/ +/* */ +/* ftfstype.c */ +/* */ +/* FreeType utility file to access FSType data (body). */ +/* */ +/* Copyright 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <ft2build.h> +#include FT_TYPE1_TABLES_H +#include FT_TRUETYPE_TABLES_H +#include FT_INTERNAL_SERVICE_H +#include FT_SERVICE_POSTSCRIPT_INFO_H + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UShort ) + FT_Get_FSType_Flags( FT_Face face ) + { + TT_OS2* os2; + + + /* first, try to get the fs_type directly from the font */ + if ( face ) + { + FT_Service_PsInfo service = NULL; + + + FT_FACE_FIND_SERVICE( face, service, POSTSCRIPT_INFO ); + + if ( service && service->ps_get_font_extra ) + { + PS_FontExtraRec extra; + + + if ( !service->ps_get_font_extra( face, &extra ) && + extra.fs_type != 0 ) + return extra.fs_type; + } + } + + /* look at FSType before fsType for Type42 */ + + if ( ( os2 = (TT_OS2*)FT_Get_Sfnt_Table( face, ft_sfnt_os2 ) ) != NULL && + os2->version != 0xFFFFU ) + return os2->fsType; + + return 0; + } + + +/* END */ diff --git a/src/base/ftgasp.c b/src/base/ftgasp.c new file mode 100644 index 0000000..8485d29 --- /dev/null +++ b/src/base/ftgasp.c @@ -0,0 +1,61 @@ +/***************************************************************************/ +/* */ +/* ftgasp.c */ +/* */ +/* Access of TrueType's `gasp' table (body). */ +/* */ +/* Copyright 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_GASP_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + + FT_EXPORT_DEF( FT_Int ) + FT_Get_Gasp( FT_Face face, + FT_UInt ppem ) + { + FT_Int result = FT_GASP_NO_TABLE; + + + if ( face && FT_IS_SFNT( face ) ) + { + TT_Face ttface = (TT_Face)face; + + + if ( ttface->gasp.numRanges > 0 ) + { + TT_GaspRange range = ttface->gasp.gaspRanges; + TT_GaspRange range_end = range + ttface->gasp.numRanges; + + + while ( ppem > range->maxPPEM ) + { + range++; + if ( range >= range_end ) + goto Exit; + } + + result = range->gaspFlag; + + /* ensure that we don't have spurious bits */ + if ( ttface->gasp.version == 0 ) + result &= 3; + } + } + Exit: + return result; + } + + +/* END */ diff --git a/src/base/ftgloadr.c b/src/base/ftgloadr.c new file mode 100644 index 0000000..8483450 --- /dev/null +++ b/src/base/ftgloadr.c @@ -0,0 +1,401 @@ +/***************************************************************************/ +/* */ +/* ftgloadr.c */ +/* */ +/* The FreeType glyph loader (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_GLYPH_LOADER_H +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_OBJECTS_H + +#undef FT_COMPONENT +#define FT_COMPONENT trace_gloader + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** *****/ + /***** G L Y P H L O A D E R *****/ + /***** *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* The glyph loader is a simple object which is used to load a set of */ + /* glyphs easily. It is critical for the correct loading of composites. */ + /* */ + /* Ideally, one can see it as a stack of abstract `glyph' objects. */ + /* */ + /* loader.base Is really the bottom of the stack. It describes a */ + /* single glyph image made of the juxtaposition of */ + /* several glyphs (those `in the stack'). */ + /* */ + /* loader.current Describes the top of the stack, on which a new */ + /* glyph can be loaded. */ + /* */ + /* Rewind Clears the stack. */ + /* Prepare Set up `loader.current' for addition of a new glyph */ + /* image. */ + /* Add Add the `current' glyph image to the `base' one, */ + /* and prepare for another one. */ + /* */ + /* The glyph loader is now a base object. Each driver used to */ + /* re-implement it in one way or the other, which wasted code and */ + /* energy. */ + /* */ + /*************************************************************************/ + + + /* create a new glyph loader */ + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_New( FT_Memory memory, + FT_GlyphLoader *aloader ) + { + FT_GlyphLoader loader = NULL; + FT_Error error; + + + if ( !FT_NEW( loader ) ) + { + loader->memory = memory; + *aloader = loader; + } + return error; + } + + + /* rewind the glyph loader - reset counters to 0 */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Rewind( FT_GlyphLoader loader ) + { + FT_GlyphLoad base = &loader->base; + FT_GlyphLoad current = &loader->current; + + + base->outline.n_points = 0; + base->outline.n_contours = 0; + base->num_subglyphs = 0; + + *current = *base; + } + + + /* reset the glyph loader, frees all allocated tables */ + /* and starts from zero */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Reset( FT_GlyphLoader loader ) + { + FT_Memory memory = loader->memory; + + + FT_FREE( loader->base.outline.points ); + FT_FREE( loader->base.outline.tags ); + FT_FREE( loader->base.outline.contours ); + FT_FREE( loader->base.extra_points ); + FT_FREE( loader->base.subglyphs ); + + loader->base.extra_points2 = NULL; + + loader->max_points = 0; + loader->max_contours = 0; + loader->max_subglyphs = 0; + + FT_GlyphLoader_Rewind( loader ); + } + + + /* delete a glyph loader */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Done( FT_GlyphLoader loader ) + { + if ( loader ) + { + FT_Memory memory = loader->memory; + + + FT_GlyphLoader_Reset( loader ); + FT_FREE( loader ); + } + } + + + /* re-adjust the `current' outline fields */ + static void + FT_GlyphLoader_Adjust_Points( FT_GlyphLoader loader ) + { + FT_Outline* base = &loader->base.outline; + FT_Outline* current = &loader->current.outline; + + + current->points = base->points + base->n_points; + current->tags = base->tags + base->n_points; + current->contours = base->contours + base->n_contours; + + /* handle extra points table - if any */ + if ( loader->use_extra ) + { + loader->current.extra_points = loader->base.extra_points + + base->n_points; + + loader->current.extra_points2 = loader->base.extra_points2 + + base->n_points; + } + } + + + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_CreateExtra( FT_GlyphLoader loader ) + { + FT_Error error; + FT_Memory memory = loader->memory; + + + if ( !FT_NEW_ARRAY( loader->base.extra_points, 2 * loader->max_points ) ) + { + loader->use_extra = 1; + loader->base.extra_points2 = loader->base.extra_points + + loader->max_points; + + FT_GlyphLoader_Adjust_Points( loader ); + } + return error; + } + + + /* re-adjust the `current' subglyphs field */ + static void + FT_GlyphLoader_Adjust_Subglyphs( FT_GlyphLoader loader ) + { + FT_GlyphLoad base = &loader->base; + FT_GlyphLoad current = &loader->current; + + + current->subglyphs = base->subglyphs + base->num_subglyphs; + } + + + /* Ensure that we can add `n_points' and `n_contours' to our glyph. */ + /* This function reallocates its outline tables if necessary. Note that */ + /* it DOESN'T change the number of points within the loader! */ + /* */ + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_CheckPoints( FT_GlyphLoader loader, + FT_UInt n_points, + FT_UInt n_contours ) + { + FT_Memory memory = loader->memory; + FT_Error error = FT_Err_Ok; + FT_Outline* base = &loader->base.outline; + FT_Outline* current = &loader->current.outline; + FT_Bool adjust = 0; + + FT_UInt new_max, old_max; + + + /* check points & tags */ + new_max = base->n_points + current->n_points + n_points; + old_max = loader->max_points; + + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 8 ); + + if ( new_max > FT_OUTLINE_POINTS_MAX ) + return FT_Err_Array_Too_Large; + + if ( FT_RENEW_ARRAY( base->points, old_max, new_max ) || + FT_RENEW_ARRAY( base->tags, old_max, new_max ) ) + goto Exit; + + if ( loader->use_extra ) + { + if ( FT_RENEW_ARRAY( loader->base.extra_points, + old_max * 2, new_max * 2 ) ) + goto Exit; + + FT_ARRAY_MOVE( loader->base.extra_points + new_max, + loader->base.extra_points + old_max, + old_max ); + + loader->base.extra_points2 = loader->base.extra_points + new_max; + } + + adjust = 1; + loader->max_points = new_max; + } + + /* check contours */ + old_max = loader->max_contours; + new_max = base->n_contours + current->n_contours + + n_contours; + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 4 ); + + if ( new_max > FT_OUTLINE_CONTOURS_MAX ) + return FT_Err_Array_Too_Large; + + if ( FT_RENEW_ARRAY( base->contours, old_max, new_max ) ) + goto Exit; + + adjust = 1; + loader->max_contours = new_max; + } + + if ( adjust ) + FT_GlyphLoader_Adjust_Points( loader ); + + Exit: + return error; + } + + + /* Ensure that we can add `n_subglyphs' to our glyph. this function */ + /* reallocates its subglyphs table if necessary. Note that it DOES */ + /* NOT change the number of subglyphs within the loader! */ + /* */ + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_CheckSubGlyphs( FT_GlyphLoader loader, + FT_UInt n_subs ) + { + FT_Memory memory = loader->memory; + FT_Error error = FT_Err_Ok; + FT_UInt new_max, old_max; + + FT_GlyphLoad base = &loader->base; + FT_GlyphLoad current = &loader->current; + + + new_max = base->num_subglyphs + current->num_subglyphs + n_subs; + old_max = loader->max_subglyphs; + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 2 ); + if ( FT_RENEW_ARRAY( base->subglyphs, old_max, new_max ) ) + goto Exit; + + loader->max_subglyphs = new_max; + + FT_GlyphLoader_Adjust_Subglyphs( loader ); + } + + Exit: + return error; + } + + + /* prepare loader for the addition of a new glyph on top of the base one */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Prepare( FT_GlyphLoader loader ) + { + FT_GlyphLoad current = &loader->current; + + + current->outline.n_points = 0; + current->outline.n_contours = 0; + current->num_subglyphs = 0; + + FT_GlyphLoader_Adjust_Points ( loader ); + FT_GlyphLoader_Adjust_Subglyphs( loader ); + } + + + /* add current glyph to the base image - and prepare for another */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Add( FT_GlyphLoader loader ) + { + FT_GlyphLoad base; + FT_GlyphLoad current; + + FT_UInt n_curr_contours; + FT_UInt n_base_points; + FT_UInt n; + + + if ( !loader ) + return; + + base = &loader->base; + current = &loader->current; + + n_curr_contours = current->outline.n_contours; + n_base_points = base->outline.n_points; + + base->outline.n_points = + (short)( base->outline.n_points + current->outline.n_points ); + base->outline.n_contours = + (short)( base->outline.n_contours + current->outline.n_contours ); + + base->num_subglyphs += current->num_subglyphs; + + /* adjust contours count in newest outline */ + for ( n = 0; n < n_curr_contours; n++ ) + current->outline.contours[n] = + (short)( current->outline.contours[n] + n_base_points ); + + /* prepare for another new glyph image */ + FT_GlyphLoader_Prepare( loader ); + } + + + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_CopyPoints( FT_GlyphLoader target, + FT_GlyphLoader source ) + { + FT_Error error; + FT_UInt num_points = source->base.outline.n_points; + FT_UInt num_contours = source->base.outline.n_contours; + + + error = FT_GlyphLoader_CheckPoints( target, num_points, num_contours ); + if ( !error ) + { + FT_Outline* out = &target->base.outline; + FT_Outline* in = &source->base.outline; + + + FT_ARRAY_COPY( out->points, in->points, + num_points ); + FT_ARRAY_COPY( out->tags, in->tags, + num_points ); + FT_ARRAY_COPY( out->contours, in->contours, + num_contours ); + + /* do we need to copy the extra points? */ + if ( target->use_extra && source->use_extra ) + { + FT_ARRAY_COPY( target->base.extra_points, source->base.extra_points, + num_points ); + FT_ARRAY_COPY( target->base.extra_points2, source->base.extra_points2, + num_points ); + } + + out->n_points = (short)num_points; + out->n_contours = (short)num_contours; + + FT_GlyphLoader_Adjust_Points( target ); + } + + return error; + } + + +/* END */ diff --git a/src/base/ftglyph.c b/src/base/ftglyph.c new file mode 100644 index 0000000..591b57a --- /dev/null +++ b/src/base/ftglyph.c @@ -0,0 +1,627 @@ +/***************************************************************************/ +/* */ +/* ftglyph.c */ +/* */ +/* FreeType convenience functions to handle glyphs (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* This file contains the definition of several convenience functions */ + /* that can be used by client applications to easily retrieve glyph */ + /* bitmaps and outlines from a given face. */ + /* */ + /* These functions should be optional if you are writing a font server */ + /* or text layout engine on top of FreeType. However, they are pretty */ + /* handy for many other simple uses of the library. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_GLYPH_H +#include FT_OUTLINE_H +#include FT_BITMAP_H +#include FT_INTERNAL_OBJECTS_H + +#include "basepic.h" + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_glyph + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** FT_BitmapGlyph support ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_CALLBACK_DEF( FT_Error ) + ft_bitmap_glyph_init( FT_Glyph bitmap_glyph, + FT_GlyphSlot slot ) + { + FT_BitmapGlyph glyph = (FT_BitmapGlyph)bitmap_glyph; + FT_Error error = FT_Err_Ok; + FT_Library library = FT_GLYPH( glyph )->library; + + + if ( slot->format != FT_GLYPH_FORMAT_BITMAP ) + { + error = FT_Err_Invalid_Glyph_Format; + goto Exit; + } + + glyph->left = slot->bitmap_left; + glyph->top = slot->bitmap_top; + + /* do lazy copying whenever possible */ + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + { + glyph->bitmap = slot->bitmap; + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + else + { + FT_Bitmap_New( &glyph->bitmap ); + error = FT_Bitmap_Copy( library, &slot->bitmap, &glyph->bitmap ); + } + + Exit: + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + ft_bitmap_glyph_copy( FT_Glyph bitmap_source, + FT_Glyph bitmap_target ) + { + FT_Library library = bitmap_source->library; + FT_BitmapGlyph source = (FT_BitmapGlyph)bitmap_source; + FT_BitmapGlyph target = (FT_BitmapGlyph)bitmap_target; + + + target->left = source->left; + target->top = source->top; + + return FT_Bitmap_Copy( library, &source->bitmap, &target->bitmap ); + } + + + FT_CALLBACK_DEF( void ) + ft_bitmap_glyph_done( FT_Glyph bitmap_glyph ) + { + FT_BitmapGlyph glyph = (FT_BitmapGlyph)bitmap_glyph; + FT_Library library = FT_GLYPH( glyph )->library; + + + FT_Bitmap_Done( library, &glyph->bitmap ); + } + + + FT_CALLBACK_DEF( void ) + ft_bitmap_glyph_bbox( FT_Glyph bitmap_glyph, + FT_BBox* cbox ) + { + FT_BitmapGlyph glyph = (FT_BitmapGlyph)bitmap_glyph; + + + cbox->xMin = glyph->left << 6; + cbox->xMax = cbox->xMin + ( glyph->bitmap.width << 6 ); + cbox->yMax = glyph->top << 6; + cbox->yMin = cbox->yMax - ( glyph->bitmap.rows << 6 ); + } + + + FT_DEFINE_GLYPH(ft_bitmap_glyph_class, + sizeof ( FT_BitmapGlyphRec ), + FT_GLYPH_FORMAT_BITMAP, + + ft_bitmap_glyph_init, + ft_bitmap_glyph_done, + ft_bitmap_glyph_copy, + 0, /* FT_Glyph_TransformFunc */ + ft_bitmap_glyph_bbox, + 0 /* FT_Glyph_PrepareFunc */ + ) + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** FT_OutlineGlyph support ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_CALLBACK_DEF( FT_Error ) + ft_outline_glyph_init( FT_Glyph outline_glyph, + FT_GlyphSlot slot ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + FT_Error error = FT_Err_Ok; + FT_Library library = FT_GLYPH( glyph )->library; + FT_Outline* source = &slot->outline; + FT_Outline* target = &glyph->outline; + + + /* check format in glyph slot */ + if ( slot->format != FT_GLYPH_FORMAT_OUTLINE ) + { + error = FT_Err_Invalid_Glyph_Format; + goto Exit; + } + + /* allocate new outline */ + error = FT_Outline_New( library, source->n_points, source->n_contours, + &glyph->outline ); + if ( error ) + goto Exit; + + FT_Outline_Copy( source, target ); + + Exit: + return error; + } + + + FT_CALLBACK_DEF( void ) + ft_outline_glyph_done( FT_Glyph outline_glyph ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + + + FT_Outline_Done( FT_GLYPH( glyph )->library, &glyph->outline ); + } + + + FT_CALLBACK_DEF( FT_Error ) + ft_outline_glyph_copy( FT_Glyph outline_source, + FT_Glyph outline_target ) + { + FT_OutlineGlyph source = (FT_OutlineGlyph)outline_source; + FT_OutlineGlyph target = (FT_OutlineGlyph)outline_target; + FT_Error error; + FT_Library library = FT_GLYPH( source )->library; + + + error = FT_Outline_New( library, source->outline.n_points, + source->outline.n_contours, &target->outline ); + if ( !error ) + FT_Outline_Copy( &source->outline, &target->outline ); + + return error; + } + + + FT_CALLBACK_DEF( void ) + ft_outline_glyph_transform( FT_Glyph outline_glyph, + const FT_Matrix* matrix, + const FT_Vector* delta ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + + + if ( matrix ) + FT_Outline_Transform( &glyph->outline, matrix ); + + if ( delta ) + FT_Outline_Translate( &glyph->outline, delta->x, delta->y ); + } + + + FT_CALLBACK_DEF( void ) + ft_outline_glyph_bbox( FT_Glyph outline_glyph, + FT_BBox* bbox ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + + + FT_Outline_Get_CBox( &glyph->outline, bbox ); + } + + + FT_CALLBACK_DEF( FT_Error ) + ft_outline_glyph_prepare( FT_Glyph outline_glyph, + FT_GlyphSlot slot ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + + + slot->format = FT_GLYPH_FORMAT_OUTLINE; + slot->outline = glyph->outline; + slot->outline.flags &= ~FT_OUTLINE_OWNER; + + return FT_Err_Ok; + } + + + FT_DEFINE_GLYPH( ft_outline_glyph_class, + sizeof ( FT_OutlineGlyphRec ), + FT_GLYPH_FORMAT_OUTLINE, + + ft_outline_glyph_init, + ft_outline_glyph_done, + ft_outline_glyph_copy, + ft_outline_glyph_transform, + ft_outline_glyph_bbox, + ft_outline_glyph_prepare + ) + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** FT_Glyph class and API ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + ft_new_glyph( FT_Library library, + const FT_Glyph_Class* clazz, + FT_Glyph* aglyph ) + { + FT_Memory memory = library->memory; + FT_Error error; + FT_Glyph glyph = NULL; + + + *aglyph = 0; + + if ( !FT_ALLOC( glyph, clazz->glyph_size ) ) + { + glyph->library = library; + glyph->clazz = clazz; + glyph->format = clazz->glyph_format; + + *aglyph = glyph; + } + + return error; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_Copy( FT_Glyph source, + FT_Glyph *target ) + { + FT_Glyph copy; + FT_Error error; + const FT_Glyph_Class* clazz; + + + /* check arguments */ + if ( !target ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + *target = 0; + + if ( !source || !source->clazz ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + clazz = source->clazz; + error = ft_new_glyph( source->library, clazz, © ); + if ( error ) + goto Exit; + + copy->advance = source->advance; + copy->format = source->format; + + if ( clazz->glyph_copy ) + error = clazz->glyph_copy( source, copy ); + + if ( error ) + FT_Done_Glyph( copy ); + else + *target = copy; + + Exit: + return error; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Glyph( FT_GlyphSlot slot, + FT_Glyph *aglyph ) + { + FT_Library library; + FT_Error error; + FT_Glyph glyph; + + const FT_Glyph_Class* clazz = 0; + + + if ( !slot ) + return FT_Err_Invalid_Slot_Handle; + + library = slot->library; + + if ( !aglyph ) + return FT_Err_Invalid_Argument; + + /* if it is a bitmap, that's easy :-) */ + if ( slot->format == FT_GLYPH_FORMAT_BITMAP ) + clazz = FT_BITMAP_GLYPH_CLASS_GET; + + /* if it is an outline */ + else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) + clazz = FT_OUTLINE_GLYPH_CLASS_GET; + + else + { + /* try to find a renderer that supports the glyph image format */ + FT_Renderer render = FT_Lookup_Renderer( library, slot->format, 0 ); + + + if ( render ) + clazz = &render->glyph_class; + } + + if ( !clazz ) + { + error = FT_Err_Invalid_Glyph_Format; + goto Exit; + } + + /* create FT_Glyph object */ + error = ft_new_glyph( library, clazz, &glyph ); + if ( error ) + goto Exit; + + /* copy advance while converting it to 16.16 format */ + glyph->advance.x = slot->advance.x << 10; + glyph->advance.y = slot->advance.y << 10; + + /* now import the image from the glyph slot */ + error = clazz->glyph_init( glyph, slot ); + + /* if an error occurred, destroy the glyph */ + if ( error ) + FT_Done_Glyph( glyph ); + else + *aglyph = glyph; + + Exit: + return error; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_Transform( FT_Glyph glyph, + FT_Matrix* matrix, + FT_Vector* delta ) + { + const FT_Glyph_Class* clazz; + FT_Error error = FT_Err_Ok; + + + if ( !glyph || !glyph->clazz ) + error = FT_Err_Invalid_Argument; + else + { + clazz = glyph->clazz; + if ( clazz->glyph_transform ) + { + /* transform glyph image */ + clazz->glyph_transform( glyph, matrix, delta ); + + /* transform advance vector */ + if ( matrix ) + FT_Vector_Transform( &glyph->advance, matrix ); + } + else + error = FT_Err_Invalid_Glyph_Format; + } + return error; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( void ) + FT_Glyph_Get_CBox( FT_Glyph glyph, + FT_UInt bbox_mode, + FT_BBox *acbox ) + { + const FT_Glyph_Class* clazz; + + + if ( !acbox ) + return; + + acbox->xMin = acbox->yMin = acbox->xMax = acbox->yMax = 0; + + if ( !glyph || !glyph->clazz ) + return; + else + { + clazz = glyph->clazz; + if ( !clazz->glyph_bbox ) + return; + else + { + /* retrieve bbox in 26.6 coordinates */ + clazz->glyph_bbox( glyph, acbox ); + + /* perform grid fitting if needed */ + if ( bbox_mode == FT_GLYPH_BBOX_GRIDFIT || + bbox_mode == FT_GLYPH_BBOX_PIXELS ) + { + acbox->xMin = FT_PIX_FLOOR( acbox->xMin ); + acbox->yMin = FT_PIX_FLOOR( acbox->yMin ); + acbox->xMax = FT_PIX_CEIL( acbox->xMax ); + acbox->yMax = FT_PIX_CEIL( acbox->yMax ); + } + + /* convert to integer pixels if needed */ + if ( bbox_mode == FT_GLYPH_BBOX_TRUNCATE || + bbox_mode == FT_GLYPH_BBOX_PIXELS ) + { + acbox->xMin >>= 6; + acbox->yMin >>= 6; + acbox->xMax >>= 6; + acbox->yMax >>= 6; + } + } + } + return; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_To_Bitmap( FT_Glyph* the_glyph, + FT_Render_Mode render_mode, + FT_Vector* origin, + FT_Bool destroy ) + { + FT_GlyphSlotRec dummy; + FT_GlyphSlot_InternalRec dummy_internal; + FT_Error error = FT_Err_Ok; + FT_Glyph glyph; + FT_BitmapGlyph bitmap = NULL; + const FT_Glyph_Class* clazz; + + /* FT_BITMAP_GLYPH_CLASS_GET derefers `library' in PIC mode */ + FT_Library library; + + + /* check argument */ + if ( !the_glyph ) + goto Bad; + glyph = *the_glyph; + if ( !glyph ) + goto Bad; + + clazz = glyph->clazz; + library = glyph->library; + if ( !library || !clazz ) + goto Bad; + + /* when called with a bitmap glyph, do nothing and return successfully */ + if ( clazz == FT_BITMAP_GLYPH_CLASS_GET ) + goto Exit; + + if ( !clazz->glyph_prepare ) + goto Bad; + + /* we render the glyph into a glyph bitmap using a `dummy' glyph slot */ + /* then calling FT_Render_Glyph_Internal() */ + + FT_MEM_ZERO( &dummy, sizeof ( dummy ) ); + FT_MEM_ZERO( &dummy_internal, sizeof ( dummy_internal ) ); + dummy.internal = &dummy_internal; + dummy.library = library; + dummy.format = clazz->glyph_format; + + /* create result bitmap glyph */ + error = ft_new_glyph( library, FT_BITMAP_GLYPH_CLASS_GET, + (FT_Glyph*)(void*)&bitmap ); + if ( error ) + goto Exit; + +#if 1 + /* if `origin' is set, translate the glyph image */ + if ( origin ) + FT_Glyph_Transform( glyph, 0, origin ); +#else + FT_UNUSED( origin ); +#endif + + /* prepare dummy slot for rendering */ + error = clazz->glyph_prepare( glyph, &dummy ); + if ( !error ) + error = FT_Render_Glyph_Internal( glyph->library, &dummy, render_mode ); + +#if 1 + if ( !destroy && origin ) + { + FT_Vector v; + + + v.x = -origin->x; + v.y = -origin->y; + FT_Glyph_Transform( glyph, 0, &v ); + } +#endif + + if ( error ) + goto Exit; + + /* in case of success, copy the bitmap to the glyph bitmap */ + error = ft_bitmap_glyph_init( (FT_Glyph)bitmap, &dummy ); + if ( error ) + goto Exit; + + /* copy advance */ + bitmap->root.advance = glyph->advance; + + if ( destroy ) + FT_Done_Glyph( glyph ); + + *the_glyph = FT_GLYPH( bitmap ); + + Exit: + if ( error && bitmap ) + FT_Done_Glyph( FT_GLYPH( bitmap ) ); + + return error; + + Bad: + error = FT_Err_Invalid_Argument; + goto Exit; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( void ) + FT_Done_Glyph( FT_Glyph glyph ) + { + if ( glyph ) + { + FT_Memory memory = glyph->library->memory; + const FT_Glyph_Class* clazz = glyph->clazz; + + + if ( clazz->glyph_done ) + clazz->glyph_done( glyph ); + + FT_FREE( glyph ); + } + } + + +/* END */ diff --git a/src/base/ftgxval.c b/src/base/ftgxval.c new file mode 100644 index 0000000..aeeb8ce --- /dev/null +++ b/src/base/ftgxval.c @@ -0,0 +1,140 @@ +/***************************************************************************/ +/* */ +/* ftgxval.c */ +/* */ +/* FreeType API for validating TrueTyepGX/AAT tables (body). */ +/* */ +/* Copyright 2004, 2005, 2006, 2010 by */ +/* Masatake YAMATO, Redhat K.K, */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_GX_VALIDATE_H + + + /* documentation is in ftgxval.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_TrueTypeGX_Validate( FT_Face face, + FT_UInt validation_flags, + FT_Bytes tables[FT_VALIDATE_GX_LENGTH], + FT_UInt table_length ) + { + FT_Service_GXvalidate service; + FT_Error error; + + + if ( !face ) + { + error = FT_Err_Invalid_Face_Handle; + goto Exit; + } + + if ( tables == NULL ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + FT_FACE_FIND_GLOBAL_SERVICE( face, service, GX_VALIDATE ); + + if ( service ) + error = service->validate( face, + validation_flags, + tables, + table_length ); + else + error = FT_Err_Unimplemented_Feature; + + Exit: + return error; + } + + + FT_EXPORT_DEF( void ) + FT_TrueTypeGX_Free( FT_Face face, + FT_Bytes table ) + { + FT_Memory memory; + + + if ( !face ) + return; + + memory = FT_FACE_MEMORY( face ); + + FT_FREE( table ); + } + + + FT_EXPORT_DEF( FT_Error ) + FT_ClassicKern_Validate( FT_Face face, + FT_UInt validation_flags, + FT_Bytes *ckern_table ) + { + FT_Service_CKERNvalidate service; + FT_Error error; + + + if ( !face ) + { + error = FT_Err_Invalid_Face_Handle; + goto Exit; + } + + if ( ckern_table == NULL ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + FT_FACE_FIND_GLOBAL_SERVICE( face, service, CLASSICKERN_VALIDATE ); + + if ( service ) + error = service->validate( face, + validation_flags, + ckern_table ); + else + error = FT_Err_Unimplemented_Feature; + + Exit: + return error; + } + + + FT_EXPORT_DEF( void ) + FT_ClassicKern_Free( FT_Face face, + FT_Bytes table ) + { + FT_Memory memory; + + + if ( !face ) + return; + + memory = FT_FACE_MEMORY( face ); + + + FT_FREE( table ); + } + + +/* END */ diff --git a/src/base/ftinit.c b/src/base/ftinit.c new file mode 100644 index 0000000..91f8e2a --- /dev/null +++ b/src/base/ftinit.c @@ -0,0 +1,282 @@ +/***************************************************************************/ +/* */ +/* ftinit.c */ +/* */ +/* FreeType initialization layer (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2007, 2009, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* The purpose of this file is to implement the following two */ + /* functions: */ + /* */ + /* FT_Add_Default_Modules(): */ + /* This function is used to add the set of default modules to a */ + /* fresh new library object. The set is taken from the header file */ + /* `freetype/config/ftmodule.h'. See the document `FreeType 2.0 */ + /* Build System' for more information. */ + /* */ + /* FT_Init_FreeType(): */ + /* This function creates a system object for the current platform, */ + /* builds a library out of it, then calls FT_Default_Drivers(). */ + /* */ + /* Note that even if FT_Init_FreeType() uses the implementation of the */ + /* system object defined at build time, client applications are still */ + /* able to provide their own `ftsystem.c'. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_MODULE_H +#include "basepic.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_init + + +#ifndef FT_CONFIG_OPTION_PIC + + +#undef FT_USE_MODULE +#ifdef __cplusplus +#define FT_USE_MODULE( type, x ) extern "C" const type x; +#else +#define FT_USE_MODULE( type, x ) extern const type x; +#endif + +#include FT_CONFIG_MODULES_H + +#undef FT_USE_MODULE +#define FT_USE_MODULE( type, x ) (const FT_Module_Class*)&(x), + + static + const FT_Module_Class* const ft_default_modules[] = + { +#include FT_CONFIG_MODULES_H + 0 + }; + + +#else /* FT_CONFIG_OPTION_PIC */ + + +#ifdef __cplusplus +#define FT_EXTERNC extern "C" +#else +#define FT_EXTERNC extern +#endif + + /* declare the module's class creation/destruction functions */ +#undef FT_USE_MODULE +#define FT_USE_MODULE( type, x ) \ + FT_EXTERNC FT_Error \ + FT_Create_Class_ ## x( FT_Library library, \ + FT_Module_Class* *output_class ); \ + FT_EXTERNC void \ + FT_Destroy_Class_ ## x( FT_Library library, \ + FT_Module_Class* clazz ); + +#include FT_CONFIG_MODULES_H + + /* count all module classes */ +#undef FT_USE_MODULE +#define FT_USE_MODULE( type, x ) MODULE_CLASS_ ## x, + + enum + { +#include FT_CONFIG_MODULES_H + FT_NUM_MODULE_CLASSES + }; + + /* destroy all module classes */ +#undef FT_USE_MODULE +#define FT_USE_MODULE( type, x ) \ + if ( classes[i] ) \ + { \ + FT_Destroy_Class_ ## x( library, classes[i] ); \ + } \ + i++; + + + FT_BASE_DEF( void ) + ft_destroy_default_module_classes( FT_Library library ) + { + FT_Module_Class* *classes; + FT_Memory memory; + FT_UInt i; + BasePIC* pic_container = (BasePIC*)library->pic_container.base; + + + if ( !pic_container->default_module_classes ) + return; + + memory = library->memory; + classes = pic_container->default_module_classes; + i = 0; + +#include FT_CONFIG_MODULES_H + + FT_FREE( classes ); + pic_container->default_module_classes = 0; + } + + + /* initialize all module classes and the pointer table */ +#undef FT_USE_MODULE +#define FT_USE_MODULE( type, x ) \ + error = FT_Create_Class_ ## x( library, &clazz ); \ + if ( error ) \ + goto Exit; \ + classes[i++] = clazz; + + + FT_BASE_DEF( FT_Error ) + ft_create_default_module_classes( FT_Library library ) + { + FT_Error error; + FT_Memory memory; + FT_Module_Class* *classes; + FT_Module_Class* clazz; + FT_UInt i; + BasePIC* pic_container = (BasePIC*)library->pic_container.base; + + + memory = library->memory; + + pic_container->default_module_classes = 0; + + if ( FT_ALLOC( classes, sizeof ( FT_Module_Class* ) * + ( FT_NUM_MODULE_CLASSES + 1 ) ) ) + return error; + + /* initialize all pointers to 0, especially the last one */ + for ( i = 0; i < FT_NUM_MODULE_CLASSES; i++ ) + classes[i] = 0; + classes[FT_NUM_MODULE_CLASSES] = 0; + + i = 0; + +#include FT_CONFIG_MODULES_H + + Exit: + if ( error ) + ft_destroy_default_module_classes( library ); + else + pic_container->default_module_classes = classes; + + return error; + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( void ) + FT_Add_Default_Modules( FT_Library library ) + { + FT_Error error; + const FT_Module_Class* const* cur; + + + /* FT_DEFAULT_MODULES_GET dereferences `library' in PIC mode */ +#ifdef FT_CONFIG_OPTION_PIC + if ( !library ) + return; +#endif + + /* GCC 4.6 warns the type difference: + * FT_Module_Class** != const FT_Module_Class* const* + */ + cur = (const FT_Module_Class* const*)FT_DEFAULT_MODULES_GET; + + /* test for valid `library' delayed to FT_Add_Module() */ + while ( *cur ) + { + error = FT_Add_Module( library, *cur ); + /* notify errors, but don't stop */ + if ( error ) + FT_TRACE0(( "FT_Add_Default_Module:" + " Cannot install `%s', error = 0x%x\n", + (*cur)->module_name, error )); + cur++; + } + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Init_FreeType( FT_Library *alibrary ) + { + FT_Error error; + FT_Memory memory; + + + /* First of all, allocate a new system object -- this function is part */ + /* of the system-specific component, i.e. `ftsystem.c'. */ + + memory = FT_New_Memory(); + if ( !memory ) + { + FT_ERROR(( "FT_Init_FreeType: cannot find memory manager\n" )); + return FT_Err_Unimplemented_Feature; + } + + /* build a library out of it, then fill it with the set of */ + /* default drivers. */ + + error = FT_New_Library( memory, alibrary ); + if ( error ) + FT_Done_Memory( memory ); + else + FT_Add_Default_Modules( *alibrary ); + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Done_FreeType( FT_Library library ) + { + if ( library ) + { + FT_Memory memory = library->memory; + + + /* Discard the library object */ + FT_Done_Library( library ); + + /* discard memory manager */ + FT_Done_Memory( memory ); + } + + return FT_Err_Ok; + } + + +/* END */ diff --git a/src/base/ftlcdfil.c b/src/base/ftlcdfil.c new file mode 100644 index 0000000..0da4ba1 --- /dev/null +++ b/src/base/ftlcdfil.c @@ -0,0 +1,376 @@ +/***************************************************************************/ +/* */ +/* ftlcdfil.c */ +/* */ +/* FreeType API for color filtering of subpixel bitmap glyphs (body). */ +/* */ +/* Copyright 2006, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_LCD_FILTER_H +#include FT_IMAGE_H +#include FT_INTERNAL_OBJECTS_H + + +#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING + +/* define USE_LEGACY to implement the legacy filter */ +#define USE_LEGACY + + /* FIR filter used by the default and light filters */ + static void + _ft_lcd_filter_fir( FT_Bitmap* bitmap, + FT_Render_Mode mode, + FT_Library library ) + { + FT_Byte* weights = library->lcd_weights; + FT_UInt width = (FT_UInt)bitmap->width; + FT_UInt height = (FT_UInt)bitmap->rows; + + + /* horizontal in-place FIR filter */ + if ( mode == FT_RENDER_MODE_LCD && width >= 4 ) + { + FT_Byte* line = bitmap->buffer; + + + for ( ; height > 0; height--, line += bitmap->pitch ) + { + FT_UInt fir[5]; + FT_UInt val1, xx; + + + val1 = line[0]; + fir[0] = weights[2] * val1; + fir[1] = weights[3] * val1; + fir[2] = weights[4] * val1; + fir[3] = 0; + fir[4] = 0; + + val1 = line[1]; + fir[0] += weights[1] * val1; + fir[1] += weights[2] * val1; + fir[2] += weights[3] * val1; + fir[3] += weights[4] * val1; + + for ( xx = 2; xx < width; xx++ ) + { + FT_UInt val, pix; + + + val = line[xx]; + pix = fir[0] + weights[0] * val; + fir[0] = fir[1] + weights[1] * val; + fir[1] = fir[2] + weights[2] * val; + fir[2] = fir[3] + weights[3] * val; + fir[3] = weights[4] * val; + + pix >>= 8; + pix |= -( pix >> 8 ); + line[xx - 2] = (FT_Byte)pix; + } + + { + FT_UInt pix; + + + pix = fir[0] >> 8; + pix |= -( pix >> 8 ); + line[xx - 2] = (FT_Byte)pix; + + pix = fir[1] >> 8; + pix |= -( pix >> 8 ); + line[xx - 1] = (FT_Byte)pix; + } + } + } + + /* vertical in-place FIR filter */ + else if ( mode == FT_RENDER_MODE_LCD_V && height >= 4 ) + { + FT_Byte* column = bitmap->buffer; + FT_Int pitch = bitmap->pitch; + + + for ( ; width > 0; width--, column++ ) + { + FT_Byte* col = column; + FT_UInt fir[5]; + FT_UInt val1, yy; + + + val1 = col[0]; + fir[0] = weights[2] * val1; + fir[1] = weights[3] * val1; + fir[2] = weights[4] * val1; + fir[3] = 0; + fir[4] = 0; + col += pitch; + + val1 = col[0]; + fir[0] += weights[1] * val1; + fir[1] += weights[2] * val1; + fir[2] += weights[3] * val1; + fir[3] += weights[4] * val1; + col += pitch; + + for ( yy = 2; yy < height; yy++ ) + { + FT_UInt val, pix; + + + val = col[0]; + pix = fir[0] + weights[0] * val; + fir[0] = fir[1] + weights[1] * val; + fir[1] = fir[2] + weights[2] * val; + fir[2] = fir[3] + weights[3] * val; + fir[3] = weights[4] * val; + + pix >>= 8; + pix |= -( pix >> 8 ); + col[-2 * pitch] = (FT_Byte)pix; + col += pitch; + } + + { + FT_UInt pix; + + + pix = fir[0] >> 8; + pix |= -( pix >> 8 ); + col[-2 * pitch] = (FT_Byte)pix; + + pix = fir[1] >> 8; + pix |= -( pix >> 8 ); + col[-pitch] = (FT_Byte)pix; + } + } + } + } + + +#ifdef USE_LEGACY + + /* intra-pixel filter used by the legacy filter */ + static void + _ft_lcd_filter_legacy( FT_Bitmap* bitmap, + FT_Render_Mode mode, + FT_Library library ) + { + FT_UInt width = (FT_UInt)bitmap->width; + FT_UInt height = (FT_UInt)bitmap->rows; + FT_Int pitch = bitmap->pitch; + + static const int filters[3][3] = + { + { 65538 * 9/13, 65538 * 1/6, 65538 * 1/13 }, + { 65538 * 3/13, 65538 * 4/6, 65538 * 3/13 }, + { 65538 * 1/13, 65538 * 1/6, 65538 * 9/13 } + }; + + FT_UNUSED( library ); + + + /* horizontal in-place intra-pixel filter */ + if ( mode == FT_RENDER_MODE_LCD && width >= 3 ) + { + FT_Byte* line = bitmap->buffer; + + + for ( ; height > 0; height--, line += pitch ) + { + FT_UInt xx; + + + for ( xx = 0; xx < width; xx += 3 ) + { + FT_UInt r = 0; + FT_UInt g = 0; + FT_UInt b = 0; + FT_UInt p; + + + p = line[xx]; + r += filters[0][0] * p; + g += filters[0][1] * p; + b += filters[0][2] * p; + + p = line[xx + 1]; + r += filters[1][0] * p; + g += filters[1][1] * p; + b += filters[1][2] * p; + + p = line[xx + 2]; + r += filters[2][0] * p; + g += filters[2][1] * p; + b += filters[2][2] * p; + + line[xx] = (FT_Byte)( r / 65536 ); + line[xx + 1] = (FT_Byte)( g / 65536 ); + line[xx + 2] = (FT_Byte)( b / 65536 ); + } + } + } + else if ( mode == FT_RENDER_MODE_LCD_V && height >= 3 ) + { + FT_Byte* column = bitmap->buffer; + + + for ( ; width > 0; width--, column++ ) + { + FT_Byte* col = column; + FT_Byte* col_end = col + height * pitch; + + + for ( ; col < col_end; col += 3 * pitch ) + { + FT_UInt r = 0; + FT_UInt g = 0; + FT_UInt b = 0; + FT_UInt p; + + + p = col[0]; + r += filters[0][0] * p; + g += filters[0][1] * p; + b += filters[0][2] * p; + + p = col[pitch]; + r += filters[1][0] * p; + g += filters[1][1] * p; + b += filters[1][2] * p; + + p = col[pitch * 2]; + r += filters[2][0] * p; + g += filters[2][1] * p; + b += filters[2][2] * p; + + col[0] = (FT_Byte)( r / 65536 ); + col[pitch] = (FT_Byte)( g / 65536 ); + col[2 * pitch] = (FT_Byte)( b / 65536 ); + } + } + } + } + +#endif /* USE_LEGACY */ + + + FT_EXPORT_DEF( FT_Error ) + FT_Library_SetLcdFilterWeights( FT_Library library, + unsigned char *weights ) + { + if ( !library || !weights ) + return FT_Err_Invalid_Argument; + + ft_memcpy( library->lcd_weights, weights, 5 ); + + return FT_Err_Ok; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Library_SetLcdFilter( FT_Library library, + FT_LcdFilter filter ) + { + static const FT_Byte light_filter[5] = + { 0x00, 0x55, 0x56, 0x55, 0x00 }; + /* the values here sum up to a value larger than 256, */ + /* providing a cheap gamma correction */ + static const FT_Byte default_filter[5] = + { 0x10, 0x40, 0x70, 0x40, 0x10 }; + + + if ( !library ) + return FT_Err_Invalid_Argument; + + switch ( filter ) + { + case FT_LCD_FILTER_NONE: + library->lcd_filter_func = NULL; + library->lcd_extra = 0; + break; + + case FT_LCD_FILTER_DEFAULT: +#if defined( FT_FORCE_LEGACY_LCD_FILTER ) + + library->lcd_filter_func = _ft_lcd_filter_legacy; + library->lcd_extra = 0; + +#elif defined( FT_FORCE_LIGHT_LCD_FILTER ) + + ft_memcpy( library->lcd_weights, light_filter, 5 ); + library->lcd_filter_func = _ft_lcd_filter_fir; + library->lcd_extra = 2; + +#else + + ft_memcpy( library->lcd_weights, default_filter, 5 ); + library->lcd_filter_func = _ft_lcd_filter_fir; + library->lcd_extra = 2; + +#endif + + break; + + case FT_LCD_FILTER_LIGHT: + ft_memcpy( library->lcd_weights, light_filter, 5 ); + library->lcd_filter_func = _ft_lcd_filter_fir; + library->lcd_extra = 2; + break; + +#ifdef USE_LEGACY + + case FT_LCD_FILTER_LEGACY: + library->lcd_filter_func = _ft_lcd_filter_legacy; + library->lcd_extra = 0; + break; + +#endif + + default: + return FT_Err_Invalid_Argument; + } + + library->lcd_filter = filter; + + return FT_Err_Ok; + } + +#else /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ + + FT_EXPORT_DEF( FT_Error ) + FT_Library_SetLcdFilterWeights( FT_Library library, + unsigned char *weights ) + { + FT_UNUSED( library ); + FT_UNUSED( weights ); + + return FT_Err_Unimplemented_Feature; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Library_SetLcdFilter( FT_Library library, + FT_LcdFilter filter ) + { + FT_UNUSED( library ); + FT_UNUSED( filter ); + + return FT_Err_Unimplemented_Feature; + } + +#endif /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ + + +/* END */ diff --git a/src/base/ftmac.c b/src/base/ftmac.c new file mode 100644 index 0000000..f200748 --- /dev/null +++ b/src/base/ftmac.c @@ -0,0 +1,1061 @@ +/***************************************************************************/ +/* */ +/* ftmac.c */ +/* */ +/* Mac FOND support. Written by just@letterror.com. */ +/* Heavily modified by mpsuzuki, George Williams, and Sean McBride. */ +/* */ +/* This file is for Mac OS X only; see builds/mac/ftoldmac.c for */ +/* classic platforms built by MPW. */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, */ +/* 2009 by */ +/* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* + Notes + + Mac suitcase files can (and often do!) contain multiple fonts. To + support this I use the face_index argument of FT_(Open|New)_Face() + functions, and pretend the suitcase file is a collection. + + Warning: fbit and NFNT bitmap resources are not supported yet. In old + sfnt fonts, bitmap glyph data for each size is stored in each `NFNT' + resources instead of the `bdat' table in the sfnt resource. Therefore, + face->num_fixed_sizes is set to 0, because bitmap data in `NFNT' + resource is unavailable at present. + + The Mac FOND support works roughly like this: + + - Check whether the offered stream points to a Mac suitcase file. This + is done by checking the file type: it has to be 'FFIL' or 'tfil'. The + stream that gets passed to our init_face() routine is a stdio stream, + which isn't usable for us, since the FOND resources live in the + resource fork. So we just grab the stream->pathname field. + + - Read the FOND resource into memory, then check whether there is a + TrueType font and/or(!) a Type 1 font available. + + - If there is a Type 1 font available (as a separate `LWFN' file), read + its data into memory, massage it slightly so it becomes PFB data, wrap + it into a memory stream, load the Type 1 driver and delegate the rest + of the work to it by calling FT_Open_Face(). (XXX TODO: after this + has been done, the kerning data from the FOND resource should be + appended to the face: On the Mac there are usually no AFM files + available. However, this is tricky since we need to map Mac char + codes to ps glyph names to glyph ID's...) + + - If there is a TrueType font (an `sfnt' resource), read it into memory, + wrap it into a memory stream, load the TrueType driver and delegate + the rest of the work to it, by calling FT_Open_Face(). + + - Some suitcase fonts (notably Onyx) might point the `LWFN' file to + itself, even though it doesn't contains `POST' resources. To handle + this special case without opening the file an extra time, we just + ignore errors from the `LWFN' and fallback to the `sfnt' if both are + available. + */ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_TRUETYPE_TAGS_H +#include FT_INTERNAL_STREAM_H +#include "ftbase.h" + + /* This is for Mac OS X. Without redefinition, OS_INLINE */ + /* expands to `static inline' which doesn't survive the */ + /* -ansi compilation flag of GCC. */ +#if !HAVE_ANSI_OS_INLINE +#undef OS_INLINE +#define OS_INLINE static __inline__ +#endif + + /* `configure' checks the availability of `ResourceIndex' strictly */ + /* and sets HAVE_TYPE_RESOURCE_INDEX 1 or 0 always. If it is */ + /* not set (e.g., a build without `configure'), the availability */ + /* is guessed from the SDK version. */ +#ifndef HAVE_TYPE_RESOURCE_INDEX +#if !defined( MAC_OS_X_VERSION_10_5 ) || \ + ( MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5 ) +#define HAVE_TYPE_RESOURCE_INDEX 0 +#else +#define HAVE_TYPE_RESOURCE_INDEX 1 +#endif +#endif /* !HAVE_TYPE_RESOURCE_INDEX */ + +#if ( HAVE_TYPE_RESOURCE_INDEX == 0 ) + typedef short ResourceIndex; +#endif + +#include <CoreServices/CoreServices.h> +#include <ApplicationServices/ApplicationServices.h> +#include <sys/syslimits.h> /* PATH_MAX */ + + /* Don't want warnings about our own use of deprecated functions. */ +#define FT_DEPRECATED_ATTRIBUTE + +#include FT_MAC_H + +#ifndef kATSOptionFlagsUnRestrictedScope /* since Mac OS X 10.1 */ +#define kATSOptionFlagsUnRestrictedScope kATSOptionFlagsDefault +#endif + + + /* Set PREFER_LWFN to 1 if LWFN (Type 1) is preferred over + TrueType in case *both* are available (this is not common, + but it *is* possible). */ +#ifndef PREFER_LWFN +#define PREFER_LWFN 1 +#endif + + +#ifdef FT_MACINTOSH + + /* This function is deprecated because FSSpec is deprecated in Mac OS X */ + FT_EXPORT_DEF( FT_Error ) + FT_GetFile_From_Mac_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + { + FT_UNUSED( fontName ); + FT_UNUSED( pathSpec ); + FT_UNUSED( face_index ); + + return FT_Err_Unimplemented_Feature; + } + + + /* Private function. */ + /* The FSSpec type has been discouraged for a long time, */ + /* unfortunately an FSRef replacement API for */ + /* ATSFontGetFileSpecification() is only available in */ + /* Mac OS X 10.5 and later. */ + static OSStatus + FT_ATSFontGetFileReference( ATSFontRef ats_font_id, + FSRef* ats_font_ref ) + { +#if defined( MAC_OS_X_VERSION_10_5 ) && \ + ( MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 ) + + OSStatus err; + + err = ATSFontGetFileReference( ats_font_id, ats_font_ref ); + + return err; +#elif __LP64__ /* No 64bit Carbon API on legacy platforms */ + FT_UNUSED( ats_font_id ); + FT_UNUSED( ats_font_ref ); + + + return fnfErr; +#else /* 32bit Carbon API on legacy platforms */ + OSStatus err; + FSSpec spec; + + + err = ATSFontGetFileSpecification( ats_font_id, &spec ); + if ( noErr == err ) + err = FSpMakeFSRef( &spec, ats_font_ref ); + + return err; +#endif + } + + + static FT_Error + FT_GetFileRef_From_Mac_ATS_Name( const char* fontName, + FSRef* ats_font_ref, + FT_Long* face_index ) + { + CFStringRef cf_fontName; + ATSFontRef ats_font_id; + + + *face_index = 0; + + cf_fontName = CFStringCreateWithCString( NULL, fontName, + kCFStringEncodingMacRoman ); + ats_font_id = ATSFontFindFromName( cf_fontName, + kATSOptionFlagsUnRestrictedScope ); + CFRelease( cf_fontName ); + + if ( ats_font_id == 0 || ats_font_id == 0xFFFFFFFFUL ) + return FT_Err_Unknown_File_Format; + + if ( noErr != FT_ATSFontGetFileReference( ats_font_id, ats_font_ref ) ) + return FT_Err_Unknown_File_Format; + + /* face_index calculation by searching preceding fontIDs */ + /* with same FSRef */ + { + ATSFontRef id2 = ats_font_id - 1; + FSRef ref2; + + + while ( id2 > 0 ) + { + if ( noErr != FT_ATSFontGetFileReference( id2, &ref2 ) ) + break; + if ( noErr != FSCompareFSRefs( ats_font_ref, &ref2 ) ) + break; + + id2 --; + } + *face_index = ats_font_id - ( id2 + 1 ); + } + + return FT_Err_Ok; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_GetFilePath_From_Mac_ATS_Name( const char* fontName, + UInt8* path, + UInt32 maxPathSize, + FT_Long* face_index ) + { + FSRef ref; + FT_Error err; + + + err = FT_GetFileRef_From_Mac_ATS_Name( fontName, &ref, face_index ); + if ( FT_Err_Ok != err ) + return err; + + if ( noErr != FSRefMakePath( &ref, path, maxPathSize ) ) + return FT_Err_Unknown_File_Format; + + return FT_Err_Ok; + } + + + /* This function is deprecated because FSSpec is deprecated in Mac OS X */ + FT_EXPORT_DEF( FT_Error ) + FT_GetFile_From_Mac_ATS_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + { +#if ( __LP64__ ) || ( defined( MAC_OS_X_VERSION_10_5 ) && \ + ( MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 ) ) + FT_UNUSED( fontName ); + FT_UNUSED( pathSpec ); + FT_UNUSED( face_index ); + + return FT_Err_Unimplemented_Feature; +#else + FSRef ref; + FT_Error err; + + + err = FT_GetFileRef_From_Mac_ATS_Name( fontName, &ref, face_index ); + if ( FT_Err_Ok != err ) + return err; + + if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, NULL, NULL, + pathSpec, NULL ) ) + return FT_Err_Unknown_File_Format; + + return FT_Err_Ok; +#endif + } + + + static OSErr + FT_FSPathMakeRes( const UInt8* pathname, + ResFileRefNum* res ) + { + OSErr err; + FSRef ref; + + + if ( noErr != FSPathMakeRef( pathname, &ref, FALSE ) ) + return FT_Err_Cannot_Open_Resource; + + /* at present, no support for dfont format */ + err = FSOpenResourceFile( &ref, 0, NULL, fsRdPerm, res ); + if ( noErr == err ) + return err; + + /* fallback to original resource-fork font */ + *res = FSOpenResFile( &ref, fsRdPerm ); + err = ResError(); + + return err; + } + + + /* Return the file type for given pathname */ + static OSType + get_file_type_from_path( const UInt8* pathname ) + { + FSRef ref; + FSCatalogInfo info; + + + if ( noErr != FSPathMakeRef( pathname, &ref, FALSE ) ) + return ( OSType ) 0; + + if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoFinderInfo, &info, + NULL, NULL, NULL ) ) + return ( OSType ) 0; + + return ((FInfo *)(info.finderInfo))->fdType; + } + + + /* Given a PostScript font name, create the Macintosh LWFN file name. */ + static void + create_lwfn_name( char* ps_name, + Str255 lwfn_file_name ) + { + int max = 5, count = 0; + FT_Byte* p = lwfn_file_name; + FT_Byte* q = (FT_Byte*)ps_name; + + + lwfn_file_name[0] = 0; + + while ( *q ) + { + if ( ft_isupper( *q ) ) + { + if ( count ) + max = 3; + count = 0; + } + if ( count < max && ( ft_isalnum( *q ) || *q == '_' ) ) + { + *++p = *q; + lwfn_file_name[0]++; + count++; + } + q++; + } + } + + + static short + count_faces_sfnt( char* fond_data ) + { + /* The count is 1 greater than the value in the FOND. */ + /* Isn't that cute? :-) */ + + return EndianS16_BtoN( *( (short*)( fond_data + + sizeof ( FamRec ) ) ) ) + 1; + } + + + static short + count_faces_scalable( char* fond_data ) + { + AsscEntry* assoc; + FamRec* fond; + short i, face, face_all; + + + fond = (FamRec*)fond_data; + face_all = EndianS16_BtoN( *( (short *)( fond_data + + sizeof ( FamRec ) ) ) ) + 1; + assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 ); + face = 0; + + for ( i = 0; i < face_all; i++ ) + { + if ( 0 == EndianS16_BtoN( assoc[i].fontSize ) ) + face++; + } + return face; + } + + + /* Look inside the FOND data, answer whether there should be an SFNT + resource, and answer the name of a possible LWFN Type 1 file. + + Thanks to Paul Miller (paulm@profoundeffects.com) for the fix + to load a face OTHER than the first one in the FOND! + */ + + + static void + parse_fond( char* fond_data, + short* have_sfnt, + ResID* sfnt_id, + Str255 lwfn_file_name, + short face_index ) + { + AsscEntry* assoc; + AsscEntry* base_assoc; + FamRec* fond; + + + *sfnt_id = 0; + *have_sfnt = 0; + lwfn_file_name[0] = 0; + + fond = (FamRec*)fond_data; + assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 ); + base_assoc = assoc; + + /* the maximum faces in a FOND is 48, size of StyleTable.indexes[] */ + if ( 47 < face_index ) + return; + + /* Let's do a little range checking before we get too excited here */ + if ( face_index < count_faces_sfnt( fond_data ) ) + { + assoc += face_index; /* add on the face_index! */ + + /* if the face at this index is not scalable, + fall back to the first one (old behavior) */ + if ( EndianS16_BtoN( assoc->fontSize ) == 0 ) + { + *have_sfnt = 1; + *sfnt_id = EndianS16_BtoN( assoc->fontID ); + } + else if ( base_assoc->fontSize == 0 ) + { + *have_sfnt = 1; + *sfnt_id = EndianS16_BtoN( base_assoc->fontID ); + } + } + + if ( EndianS32_BtoN( fond->ffStylOff ) ) + { + unsigned char* p = (unsigned char*)fond_data; + StyleTable* style; + unsigned short string_count; + char ps_name[256]; + unsigned char* names[64]; + int i; + + + p += EndianS32_BtoN( fond->ffStylOff ); + style = (StyleTable*)p; + p += sizeof ( StyleTable ); + string_count = EndianS16_BtoN( *(short*)(p) ); + p += sizeof ( short ); + + for ( i = 0; i < string_count && i < 64; i++ ) + { + names[i] = p; + p += names[i][0]; + p++; + } + + { + size_t ps_name_len = (size_t)names[0][0]; + + + if ( ps_name_len != 0 ) + { + ft_memcpy(ps_name, names[0] + 1, ps_name_len); + ps_name[ps_name_len] = 0; + } + if ( style->indexes[face_index] > 1 && + style->indexes[face_index] <= FT_MIN( string_count, 64 ) ) + { + unsigned char* suffixes = names[style->indexes[face_index] - 1]; + + + for ( i = 1; i <= suffixes[0]; i++ ) + { + unsigned char* s; + size_t j = suffixes[i] - 1; + + + if ( j < string_count && ( s = names[j] ) != NULL ) + { + size_t s_len = (size_t)s[0]; + + + if ( s_len != 0 && ps_name_len + s_len < sizeof ( ps_name ) ) + { + ft_memcpy( ps_name + ps_name_len, s + 1, s_len ); + ps_name_len += s_len; + ps_name[ps_name_len] = 0; + } + } + } + } + } + + create_lwfn_name( ps_name, lwfn_file_name ); + } + } + + + static FT_Error + lookup_lwfn_by_fond( const UInt8* path_fond, + ConstStr255Param base_lwfn, + UInt8* path_lwfn, + size_t path_size ) + { + FSRef ref, par_ref; + size_t dirname_len; + + + /* Pathname for FSRef can be in various formats: HFS, HFS+, and POSIX. */ + /* We should not extract parent directory by string manipulation. */ + + if ( noErr != FSPathMakeRef( path_fond, &ref, FALSE ) ) + return FT_Err_Invalid_Argument; + + if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, + NULL, NULL, NULL, &par_ref ) ) + return FT_Err_Invalid_Argument; + + if ( noErr != FSRefMakePath( &par_ref, path_lwfn, path_size ) ) + return FT_Err_Invalid_Argument; + + if ( ft_strlen( (char *)path_lwfn ) + 1 + base_lwfn[0] > path_size ) + return FT_Err_Invalid_Argument; + + /* now we have absolute dirname in path_lwfn */ + ft_strcat( (char *)path_lwfn, "/" ); + dirname_len = ft_strlen( (char *)path_lwfn ); + ft_strcat( (char *)path_lwfn, (char *)base_lwfn + 1 ); + path_lwfn[dirname_len + base_lwfn[0]] = '\0'; + + if ( noErr != FSPathMakeRef( path_lwfn, &ref, FALSE ) ) + return FT_Err_Cannot_Open_Resource; + + if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, + NULL, NULL, NULL, NULL ) ) + return FT_Err_Cannot_Open_Resource; + + return FT_Err_Ok; + } + + + static short + count_faces( Handle fond, + const UInt8* pathname ) + { + ResID sfnt_id; + short have_sfnt, have_lwfn; + Str255 lwfn_file_name; + UInt8 buff[PATH_MAX]; + FT_Error err; + short num_faces; + + + have_sfnt = have_lwfn = 0; + + parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, 0 ); + + if ( lwfn_file_name[0] ) + { + err = lookup_lwfn_by_fond( pathname, lwfn_file_name, + buff, sizeof ( buff ) ); + if ( FT_Err_Ok == err ) + have_lwfn = 1; + } + + if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) ) + num_faces = 1; + else + num_faces = count_faces_scalable( *fond ); + + return num_faces; + } + + + /* Read Type 1 data from the POST resources inside the LWFN file, + return a PFB buffer. This is somewhat convoluted because the FT2 + PFB parser wants the ASCII header as one chunk, and the LWFN + chunks are often not organized that way, so we glue chunks + of the same type together. */ + static FT_Error + read_lwfn( FT_Memory memory, + ResFileRefNum res, + FT_Byte** pfb_data, + FT_ULong* size ) + { + FT_Error error = FT_Err_Ok; + ResID res_id; + unsigned char *buffer, *p, *size_p = NULL; + FT_ULong total_size = 0; + FT_ULong old_total_size = 0; + FT_ULong post_size, pfb_chunk_size; + Handle post_data; + char code, last_code; + + + UseResFile( res ); + + /* First pass: load all POST resources, and determine the size of */ + /* the output buffer. */ + res_id = 501; + last_code = -1; + + for (;;) + { + post_data = Get1Resource( TTAG_POST, res_id++ ); + if ( post_data == NULL ) + break; /* we are done */ + + code = (*post_data)[0]; + + if ( code != last_code ) + { + if ( code == 5 ) + total_size += 2; /* just the end code */ + else + total_size += 6; /* code + 4 bytes chunk length */ + } + + total_size += GetHandleSize( post_data ) - 2; + last_code = code; + + /* detect integer overflows */ + if ( total_size < old_total_size ) + { + error = FT_Err_Array_Too_Large; + goto Error; + } + + old_total_size = total_size; + } + + if ( FT_ALLOC( buffer, (FT_Long)total_size ) ) + goto Error; + + /* Second pass: append all POST data to the buffer, add PFB fields. */ + /* Glue all consecutive chunks of the same type together. */ + p = buffer; + res_id = 501; + last_code = -1; + pfb_chunk_size = 0; + + for (;;) + { + post_data = Get1Resource( TTAG_POST, res_id++ ); + if ( post_data == NULL ) + break; /* we are done */ + + post_size = (FT_ULong)GetHandleSize( post_data ) - 2; + code = (*post_data)[0]; + + if ( code != last_code ) + { + if ( last_code != -1 ) + { + /* we are done adding a chunk, fill in the size field */ + if ( size_p != NULL ) + { + *size_p++ = (FT_Byte)( pfb_chunk_size & 0xFF ); + *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 8 ) & 0xFF ); + *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 16 ) & 0xFF ); + *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 24 ) & 0xFF ); + } + pfb_chunk_size = 0; + } + + *p++ = 0x80; + if ( code == 5 ) + *p++ = 0x03; /* the end */ + else if ( code == 2 ) + *p++ = 0x02; /* binary segment */ + else + *p++ = 0x01; /* ASCII segment */ + + if ( code != 5 ) + { + size_p = p; /* save for later */ + p += 4; /* make space for size field */ + } + } + + ft_memcpy( p, *post_data + 2, post_size ); + pfb_chunk_size += post_size; + p += post_size; + last_code = code; + } + + *pfb_data = buffer; + *size = total_size; + + Error: + CloseResFile( res ); + return error; + } + + + /* Create a new FT_Face from a file path to an LWFN file. */ + static FT_Error + FT_New_Face_From_LWFN( FT_Library library, + const UInt8* pathname, + FT_Long face_index, + FT_Face* aface ) + { + FT_Byte* pfb_data; + FT_ULong pfb_size; + FT_Error error; + ResFileRefNum res; + + + if ( noErr != FT_FSPathMakeRes( pathname, &res ) ) + return FT_Err_Cannot_Open_Resource; + + pfb_data = NULL; + pfb_size = 0; + error = read_lwfn( library->memory, res, &pfb_data, &pfb_size ); + CloseResFile( res ); /* PFB is already loaded, useless anymore */ + if ( error ) + return error; + + return open_face_from_buffer( library, + pfb_data, + pfb_size, + face_index, + "type1", + aface ); + } + + + /* Create a new FT_Face from an SFNT resource, specified by res ID. */ + static FT_Error + FT_New_Face_From_SFNT( FT_Library library, + ResID sfnt_id, + FT_Long face_index, + FT_Face* aface ) + { + Handle sfnt = NULL; + FT_Byte* sfnt_data; + size_t sfnt_size; + FT_Error error = FT_Err_Ok; + FT_Memory memory = library->memory; + int is_cff, is_sfnt_ps; + + + sfnt = GetResource( TTAG_sfnt, sfnt_id ); + if ( sfnt == NULL ) + return FT_Err_Invalid_Handle; + + sfnt_size = (FT_ULong)GetHandleSize( sfnt ); + if ( FT_ALLOC( sfnt_data, (FT_Long)sfnt_size ) ) + { + ReleaseResource( sfnt ); + return error; + } + + ft_memcpy( sfnt_data, *sfnt, sfnt_size ); + ReleaseResource( sfnt ); + + is_cff = sfnt_size > 4 && !ft_memcmp( sfnt_data, "OTTO", 4 ); + is_sfnt_ps = sfnt_size > 4 && !ft_memcmp( sfnt_data, "typ1", 4 ); + + if ( is_sfnt_ps ) + { + FT_Stream stream; + + + if ( FT_NEW( stream ) ) + goto Try_OpenType; + + FT_Stream_OpenMemory( stream, sfnt_data, sfnt_size ); + if ( !open_face_PS_from_sfnt_stream( library, + stream, + face_index, + 0, NULL, + aface ) ) + { + FT_Stream_Close( stream ); + FT_FREE( stream ); + FT_FREE( sfnt_data ); + goto Exit; + } + + FT_FREE( stream ); + } + Try_OpenType: + error = open_face_from_buffer( library, + sfnt_data, + sfnt_size, + face_index, + is_cff ? "cff" : "truetype", + aface ); + Exit: + return error; + } + + + /* Create a new FT_Face from a file path to a suitcase file. */ + static FT_Error + FT_New_Face_From_Suitcase( FT_Library library, + const UInt8* pathname, + FT_Long face_index, + FT_Face* aface ) + { + FT_Error error = FT_Err_Cannot_Open_Resource; + ResFileRefNum res_ref; + ResourceIndex res_index; + Handle fond; + short num_faces_in_res, num_faces_in_fond; + + + if ( noErr != FT_FSPathMakeRes( pathname, &res_ref ) ) + return FT_Err_Cannot_Open_Resource; + + UseResFile( res_ref ); + if ( ResError() ) + return FT_Err_Cannot_Open_Resource; + + num_faces_in_res = 0; + for ( res_index = 1; ; ++res_index ) + { + fond = Get1IndResource( TTAG_FOND, res_index ); + if ( ResError() ) + break; + + num_faces_in_fond = count_faces( fond, pathname ); + num_faces_in_res += num_faces_in_fond; + + if ( 0 <= face_index && face_index < num_faces_in_fond && error ) + error = FT_New_Face_From_FOND( library, fond, face_index, aface ); + + face_index -= num_faces_in_fond; + } + + CloseResFile( res_ref ); + if ( FT_Err_Ok == error && NULL != aface && NULL != *aface ) + (*aface)->num_faces = num_faces_in_res; + return error; + } + + + /* documentation is in ftmac.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Face_From_FOND( FT_Library library, + Handle fond, + FT_Long face_index, + FT_Face* aface ) + { + short have_sfnt, have_lwfn = 0; + ResID sfnt_id, fond_id; + OSType fond_type; + Str255 fond_name; + Str255 lwfn_file_name; + UInt8 path_lwfn[PATH_MAX]; + OSErr err; + FT_Error error = FT_Err_Ok; + + + GetResInfo( fond, &fond_id, &fond_type, fond_name ); + if ( ResError() != noErr || fond_type != TTAG_FOND ) + return FT_Err_Invalid_File_Format; + + parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, face_index ); + + if ( lwfn_file_name[0] ) + { + ResFileRefNum res; + + + res = HomeResFile( fond ); + if ( noErr != ResError() ) + goto found_no_lwfn_file; + + { + UInt8 path_fond[PATH_MAX]; + FSRef ref; + + + err = FSGetForkCBInfo( res, kFSInvalidVolumeRefNum, + NULL, NULL, NULL, &ref, NULL ); + if ( noErr != err ) + goto found_no_lwfn_file; + + err = FSRefMakePath( &ref, path_fond, sizeof ( path_fond ) ); + if ( noErr != err ) + goto found_no_lwfn_file; + + error = lookup_lwfn_by_fond( path_fond, lwfn_file_name, + path_lwfn, sizeof ( path_lwfn ) ); + if ( FT_Err_Ok == error ) + have_lwfn = 1; + } + } + + if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) ) + error = FT_New_Face_From_LWFN( library, + path_lwfn, + face_index, + aface ); + else + error = FT_Err_Unknown_File_Format; + + found_no_lwfn_file: + if ( have_sfnt && FT_Err_Ok != error ) + error = FT_New_Face_From_SFNT( library, + sfnt_id, + face_index, + aface ); + + return error; + } + + + /* Common function to load a new FT_Face from a resource file. */ + static FT_Error + FT_New_Face_From_Resource( FT_Library library, + const UInt8* pathname, + FT_Long face_index, + FT_Face* aface ) + { + OSType file_type; + FT_Error error; + + + /* LWFN is a (very) specific file format, check for it explicitly */ + file_type = get_file_type_from_path( pathname ); + if ( file_type == TTAG_LWFN ) + return FT_New_Face_From_LWFN( library, pathname, face_index, aface ); + + /* Otherwise the file type doesn't matter (there are more than */ + /* `FFIL' and `tfil'). Just try opening it as a font suitcase; */ + /* if it works, fine. */ + + error = FT_New_Face_From_Suitcase( library, pathname, face_index, aface ); + if ( error == 0 ) + return error; + + /* let it fall through to normal loader (.ttf, .otf, etc.); */ + /* we signal this by returning no error and no FT_Face */ + *aface = NULL; + return 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face */ + /* */ + /* <Description> */ + /* This is the Mac-specific implementation of FT_New_Face. In */ + /* addition to the standard FT_New_Face() functionality, it also */ + /* accepts pathnames to Mac suitcase files. For further */ + /* documentation see the original FT_New_Face() in freetype.h. */ + /* */ + FT_EXPORT_DEF( FT_Error ) + FT_New_Face( FT_Library library, + const char* pathname, + FT_Long face_index, + FT_Face* aface ) + { + FT_Open_Args args; + FT_Error error; + + + /* test for valid `library' and `aface' delayed to FT_Open_Face() */ + if ( !pathname ) + return FT_Err_Invalid_Argument; + + error = FT_Err_Ok; + *aface = NULL; + + /* try resourcefork based font: LWFN, FFIL */ + error = FT_New_Face_From_Resource( library, (UInt8 *)pathname, + face_index, aface ); + if ( error != 0 || *aface != NULL ) + return error; + + /* let it fall through to normal loader (.ttf, .otf, etc.) */ + args.flags = FT_OPEN_PATHNAME; + args.pathname = (char*)pathname; + return FT_Open_Face( library, &args, face_index, aface ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face_From_FSRef */ + /* */ + /* <Description> */ + /* FT_New_Face_From_FSRef is identical to FT_New_Face except it */ + /* accepts an FSRef instead of a path. */ + /* */ + /* This function is deprecated because Carbon data types (FSRef) */ + /* are not cross-platform, and thus not suitable for the freetype API. */ + FT_EXPORT_DEF( FT_Error ) + FT_New_Face_From_FSRef( FT_Library library, + const FSRef* ref, + FT_Long face_index, + FT_Face* aface ) + { + FT_Error error; + FT_Open_Args args; + OSErr err; + UInt8 pathname[PATH_MAX]; + + + if ( !ref ) + return FT_Err_Invalid_Argument; + + err = FSRefMakePath( ref, pathname, sizeof ( pathname ) ); + if ( err ) + error = FT_Err_Cannot_Open_Resource; + + error = FT_New_Face_From_Resource( library, pathname, face_index, aface ); + if ( error != 0 || *aface != NULL ) + return error; + + /* fallback to datafork font */ + args.flags = FT_OPEN_PATHNAME; + args.pathname = (char*)pathname; + return FT_Open_Face( library, &args, face_index, aface ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face_From_FSSpec */ + /* */ + /* <Description> */ + /* FT_New_Face_From_FSSpec is identical to FT_New_Face except it */ + /* accepts an FSSpec instead of a path. */ + /* */ + /* This function is deprecated because FSSpec is deprecated in Mac OS X */ + FT_EXPORT_DEF( FT_Error ) + FT_New_Face_From_FSSpec( FT_Library library, + const FSSpec* spec, + FT_Long face_index, + FT_Face* aface ) + { +#if ( __LP64__ ) || ( defined( MAC_OS_X_VERSION_10_5 ) && \ + ( MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 ) ) + FT_UNUSED( library ); + FT_UNUSED( spec ); + FT_UNUSED( face_index ); + FT_UNUSED( aface ); + + return FT_Err_Unimplemented_Feature; +#else + FSRef ref; + + + if ( !spec || FSpMakeFSRef( spec, &ref ) != noErr ) + return FT_Err_Invalid_Argument; + else + return FT_New_Face_From_FSRef( library, &ref, face_index, aface ); +#endif + } + +#endif /* FT_MACINTOSH */ + + +/* END */ diff --git a/src/base/ftmm.c b/src/base/ftmm.c new file mode 100644 index 0000000..0307729 --- /dev/null +++ b/src/base/ftmm.c @@ -0,0 +1,202 @@ +/***************************************************************************/ +/* */ +/* ftmm.c */ +/* */ +/* Multiple Master font support (body). */ +/* */ +/* Copyright 1996-2001, 2003, 2004, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_MULTIPLE_MASTERS_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_MULTIPLE_MASTERS_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_mm + + + static FT_Error + ft_face_get_mm_service( FT_Face face, + FT_Service_MultiMasters *aservice ) + { + FT_Error error; + + + *aservice = NULL; + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + error = FT_Err_Invalid_Argument; + + if ( FT_HAS_MULTIPLE_MASTERS( face ) ) + { + FT_FACE_LOOKUP_SERVICE( face, + *aservice, + MULTI_MASTERS ); + + if ( *aservice ) + error = FT_Err_Ok; + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Multi_Master( FT_Face face, + FT_Multi_Master *amaster ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->get_mm ) + error = service->get_mm( face, amaster ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_MM_Var( FT_Face face, + FT_MM_Var* *amaster ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->get_mm_var ) + error = service->get_mm_var( face, amaster ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_MM_Design_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Long* coords ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->set_mm_design ) + error = service->set_mm_design( face, num_coords, coords ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Var_Design_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->set_var_design ) + error = service->set_var_design( face, num_coords, coords ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_MM_Blend_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->set_mm_blend ) + error = service->set_mm_blend( face, num_coords, coords ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + /* This is exactly the same as the previous function. It exists for */ + /* orthogonality. */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Var_Blend_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->set_mm_blend ) + error = service->set_mm_blend( face, num_coords, coords ); + } + + return error; + } + + +/* END */ diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c new file mode 100644 index 0000000..36ee797 --- /dev/null +++ b/src/base/ftobjs.c @@ -0,0 +1,4751 @@ +/***************************************************************************/ +/* */ +/* ftobjs.c */ +/* */ +/* The FreeType private base classes (body). */ +/* */ +/* Copyright 1996-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_LIST_H +#include FT_OUTLINE_H +#include FT_INTERNAL_VALIDATE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_RFORK_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H /* for SFNT_Load_Table_Func */ +#include FT_TRUETYPE_TABLES_H +#include FT_TRUETYPE_TAGS_H +#include FT_TRUETYPE_IDS_H + +#include FT_SERVICE_SFNT_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_GLYPH_DICT_H +#include FT_SERVICE_TT_CMAP_H +#include FT_SERVICE_KERNING_H +#include FT_SERVICE_TRUETYPE_ENGINE_H + +#ifdef FT_CONFIG_OPTION_MAC_FONTS +#include "ftbase.h" +#endif + +#define GRID_FIT_METRICS + + + FT_BASE_DEF( FT_Pointer ) + ft_service_list_lookup( FT_ServiceDesc service_descriptors, + const char* service_id ) + { + FT_Pointer result = NULL; + FT_ServiceDesc desc = service_descriptors; + + + if ( desc && service_id ) + { + for ( ; desc->serv_id != NULL; desc++ ) + { + if ( ft_strcmp( desc->serv_id, service_id ) == 0 ) + { + result = (FT_Pointer)desc->serv_data; + break; + } + } + } + + return result; + } + + + FT_BASE_DEF( void ) + ft_validator_init( FT_Validator valid, + const FT_Byte* base, + const FT_Byte* limit, + FT_ValidationLevel level ) + { + valid->base = base; + valid->limit = limit; + valid->level = level; + valid->error = FT_Err_Ok; + } + + + FT_BASE_DEF( FT_Int ) + ft_validator_run( FT_Validator valid ) + { + /* This function doesn't work! None should call it. */ + FT_UNUSED( valid ); + + return -1; + } + + + FT_BASE_DEF( void ) + ft_validator_error( FT_Validator valid, + FT_Error error ) + { + /* since the cast below also disables the compiler's */ + /* type check, we introduce a dummy variable, which */ + /* will be optimized away */ + volatile ft_jmp_buf* jump_buffer = &valid->jump_buffer; + + + valid->error = error; + + /* throw away volatileness; use `jump_buffer' or the */ + /* compiler may warn about an unused local variable */ + ft_longjmp( *(ft_jmp_buf*) jump_buffer, 1 ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** S T R E A M ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* create a new input stream from an FT_Open_Args structure */ + /* */ + FT_BASE_DEF( FT_Error ) + FT_Stream_New( FT_Library library, + const FT_Open_Args* args, + FT_Stream *astream ) + { + FT_Error error; + FT_Memory memory; + FT_Stream stream = NULL; + + + *astream = 0; + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !args ) + return FT_Err_Invalid_Argument; + + memory = library->memory; + + if ( FT_NEW( stream ) ) + goto Exit; + + stream->memory = memory; + + if ( args->flags & FT_OPEN_MEMORY ) + { + /* create a memory-based stream */ + FT_Stream_OpenMemory( stream, + (const FT_Byte*)args->memory_base, + args->memory_size ); + } + +#ifndef FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT + + else if ( args->flags & FT_OPEN_PATHNAME ) + { + /* create a normal system stream */ + error = FT_Stream_Open( stream, args->pathname ); + stream->pathname.pointer = args->pathname; + } + else if ( ( args->flags & FT_OPEN_STREAM ) && args->stream ) + { + /* use an existing, user-provided stream */ + + /* in this case, we do not need to allocate a new stream object */ + /* since the caller is responsible for closing it himself */ + FT_FREE( stream ); + stream = args->stream; + } + +#endif + + else + error = FT_Err_Invalid_Argument; + + if ( error ) + FT_FREE( stream ); + else + stream->memory = memory; /* just to be certain */ + + *astream = stream; + + Exit: + return error; + } + + + FT_BASE_DEF( void ) + FT_Stream_Free( FT_Stream stream, + FT_Int external ) + { + if ( stream ) + { + FT_Memory memory = stream->memory; + + + FT_Stream_Close( stream ); + + if ( !external ) + FT_FREE( stream ); + } + } + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_objs + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** FACE, SIZE & GLYPH SLOT OBJECTS ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + static FT_Error + ft_glyphslot_init( FT_GlyphSlot slot ) + { + FT_Driver driver = slot->face->driver; + FT_Driver_Class clazz = driver->clazz; + FT_Memory memory = driver->root.memory; + FT_Error error = FT_Err_Ok; + FT_Slot_Internal internal = NULL; + + + slot->library = driver->root.library; + + if ( FT_NEW( internal ) ) + goto Exit; + + slot->internal = internal; + + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + error = FT_GlyphLoader_New( memory, &internal->loader ); + + if ( !error && clazz->init_slot ) + error = clazz->init_slot( slot ); + + Exit: + return error; + } + + + FT_BASE_DEF( void ) + ft_glyphslot_free_bitmap( FT_GlyphSlot slot ) + { + if ( slot->internal && ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) ) + { + FT_Memory memory = FT_FACE_MEMORY( slot->face ); + + + FT_FREE( slot->bitmap.buffer ); + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + else + { + /* assume that the bitmap buffer was stolen or not */ + /* allocated from the heap */ + slot->bitmap.buffer = NULL; + } + } + + + FT_BASE_DEF( void ) + ft_glyphslot_set_bitmap( FT_GlyphSlot slot, + FT_Byte* buffer ) + { + ft_glyphslot_free_bitmap( slot ); + + slot->bitmap.buffer = buffer; + + FT_ASSERT( (slot->internal->flags & FT_GLYPH_OWN_BITMAP) == 0 ); + } + + + FT_BASE_DEF( FT_Error ) + ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot, + FT_ULong size ) + { + FT_Memory memory = FT_FACE_MEMORY( slot->face ); + FT_Error error; + + + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + FT_FREE( slot->bitmap.buffer ); + else + slot->internal->flags |= FT_GLYPH_OWN_BITMAP; + + (void)FT_ALLOC( slot->bitmap.buffer, size ); + return error; + } + + + static void + ft_glyphslot_clear( FT_GlyphSlot slot ) + { + /* free bitmap if needed */ + ft_glyphslot_free_bitmap( slot ); + + /* clear all public fields in the glyph slot */ + FT_ZERO( &slot->metrics ); + FT_ZERO( &slot->outline ); + + slot->bitmap.width = 0; + slot->bitmap.rows = 0; + slot->bitmap.pitch = 0; + slot->bitmap.pixel_mode = 0; + /* `slot->bitmap.buffer' has been handled by ft_glyphslot_free_bitmap */ + + slot->bitmap_left = 0; + slot->bitmap_top = 0; + slot->num_subglyphs = 0; + slot->subglyphs = 0; + slot->control_data = 0; + slot->control_len = 0; + slot->other = 0; + slot->format = FT_GLYPH_FORMAT_NONE; + + slot->linearHoriAdvance = 0; + slot->linearVertAdvance = 0; + slot->lsb_delta = 0; + slot->rsb_delta = 0; + } + + + static void + ft_glyphslot_done( FT_GlyphSlot slot ) + { + FT_Driver driver = slot->face->driver; + FT_Driver_Class clazz = driver->clazz; + FT_Memory memory = driver->root.memory; + + + if ( clazz->done_slot ) + clazz->done_slot( slot ); + + /* free bitmap buffer if needed */ + ft_glyphslot_free_bitmap( slot ); + + /* slot->internal might be NULL in out-of-memory situations */ + if ( slot->internal ) + { + /* free glyph loader */ + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + { + FT_GlyphLoader_Done( slot->internal->loader ); + slot->internal->loader = 0; + } + + FT_FREE( slot->internal ); + } + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Error ) + FT_New_GlyphSlot( FT_Face face, + FT_GlyphSlot *aslot ) + { + FT_Error error; + FT_Driver driver; + FT_Driver_Class clazz; + FT_Memory memory; + FT_GlyphSlot slot = NULL; + + + if ( !face || !face->driver ) + return FT_Err_Invalid_Argument; + + driver = face->driver; + clazz = driver->clazz; + memory = driver->root.memory; + + FT_TRACE4(( "FT_New_GlyphSlot: Creating new slot object\n" )); + if ( !FT_ALLOC( slot, clazz->slot_object_size ) ) + { + slot->face = face; + + error = ft_glyphslot_init( slot ); + if ( error ) + { + ft_glyphslot_done( slot ); + FT_FREE( slot ); + goto Exit; + } + + slot->next = face->glyph; + face->glyph = slot; + + if ( aslot ) + *aslot = slot; + } + else if ( aslot ) + *aslot = 0; + + + Exit: + FT_TRACE4(( "FT_New_GlyphSlot: Return %d\n", error )); + return error; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( void ) + FT_Done_GlyphSlot( FT_GlyphSlot slot ) + { + if ( slot ) + { + FT_Driver driver = slot->face->driver; + FT_Memory memory = driver->root.memory; + FT_GlyphSlot prev; + FT_GlyphSlot cur; + + + /* Remove slot from its parent face's list */ + prev = NULL; + cur = slot->face->glyph; + + while ( cur ) + { + if ( cur == slot ) + { + if ( !prev ) + slot->face->glyph = cur->next; + else + prev->next = cur->next; + + /* finalize client-specific data */ + if ( slot->generic.finalizer ) + slot->generic.finalizer( slot ); + + ft_glyphslot_done( slot ); + FT_FREE( slot ); + break; + } + prev = cur; + cur = cur->next; + } + } + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( void ) + FT_Set_Transform( FT_Face face, + FT_Matrix* matrix, + FT_Vector* delta ) + { + FT_Face_Internal internal; + + + if ( !face ) + return; + + internal = face->internal; + + internal->transform_flags = 0; + + if ( !matrix ) + { + internal->transform_matrix.xx = 0x10000L; + internal->transform_matrix.xy = 0; + internal->transform_matrix.yx = 0; + internal->transform_matrix.yy = 0x10000L; + matrix = &internal->transform_matrix; + } + else + internal->transform_matrix = *matrix; + + /* set transform_flags bit flag 0 if `matrix' isn't the identity */ + if ( ( matrix->xy | matrix->yx ) || + matrix->xx != 0x10000L || + matrix->yy != 0x10000L ) + internal->transform_flags |= 1; + + if ( !delta ) + { + internal->transform_delta.x = 0; + internal->transform_delta.y = 0; + delta = &internal->transform_delta; + } + else + internal->transform_delta = *delta; + + /* set transform_flags bit flag 1 if `delta' isn't the null vector */ + if ( delta->x | delta->y ) + internal->transform_flags |= 2; + } + + + static FT_Renderer + ft_lookup_glyph_renderer( FT_GlyphSlot slot ); + + +#ifdef GRID_FIT_METRICS + static void + ft_glyphslot_grid_fit_metrics( FT_GlyphSlot slot, + FT_Bool vertical ) + { + FT_Glyph_Metrics* metrics = &slot->metrics; + FT_Pos right, bottom; + + + if ( vertical ) + { + metrics->horiBearingX = FT_PIX_FLOOR( metrics->horiBearingX ); + metrics->horiBearingY = FT_PIX_CEIL ( metrics->horiBearingY ); + + right = FT_PIX_CEIL( metrics->vertBearingX + metrics->width ); + bottom = FT_PIX_CEIL( metrics->vertBearingY + metrics->height ); + + metrics->vertBearingX = FT_PIX_FLOOR( metrics->vertBearingX ); + metrics->vertBearingY = FT_PIX_FLOOR( metrics->vertBearingY ); + + metrics->width = right - metrics->vertBearingX; + metrics->height = bottom - metrics->vertBearingY; + } + else + { + metrics->vertBearingX = FT_PIX_FLOOR( metrics->vertBearingX ); + metrics->vertBearingY = FT_PIX_FLOOR( metrics->vertBearingY ); + + right = FT_PIX_CEIL ( metrics->horiBearingX + metrics->width ); + bottom = FT_PIX_FLOOR( metrics->horiBearingY - metrics->height ); + + metrics->horiBearingX = FT_PIX_FLOOR( metrics->horiBearingX ); + metrics->horiBearingY = FT_PIX_CEIL ( metrics->horiBearingY ); + + metrics->width = right - metrics->horiBearingX; + metrics->height = metrics->horiBearingY - bottom; + } + + metrics->horiAdvance = FT_PIX_ROUND( metrics->horiAdvance ); + metrics->vertAdvance = FT_PIX_ROUND( metrics->vertAdvance ); + } +#endif /* GRID_FIT_METRICS */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Load_Glyph( FT_Face face, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FT_Error error; + FT_Driver driver; + FT_GlyphSlot slot; + FT_Library library; + FT_Bool autohint = FALSE; + FT_Module hinter; + TT_Face ttface = (TT_Face)face; + + + if ( !face || !face->size || !face->glyph ) + return FT_Err_Invalid_Face_Handle; + + /* The validity test for `glyph_index' is performed by the */ + /* font drivers. */ + + slot = face->glyph; + ft_glyphslot_clear( slot ); + + driver = face->driver; + library = driver->root.library; + hinter = library->auto_hinter; + + /* resolve load flags dependencies */ + + if ( load_flags & FT_LOAD_NO_RECURSE ) + load_flags |= FT_LOAD_NO_SCALE | + FT_LOAD_IGNORE_TRANSFORM; + + if ( load_flags & FT_LOAD_NO_SCALE ) + { + load_flags |= FT_LOAD_NO_HINTING | + FT_LOAD_NO_BITMAP; + + load_flags &= ~FT_LOAD_RENDER; + } + + /* + * Determine whether we need to auto-hint or not. + * The general rules are: + * + * - Do only auto-hinting if we have a hinter module, a scalable font + * format dealing with outlines, and no transforms except simple + * slants and/or rotations by integer multiples of 90 degrees. + * + * - Then, auto-hint if FT_LOAD_FORCE_AUTOHINT is set or if we don't + * have a native font hinter. + * + * - Otherwise, auto-hint for LIGHT hinting mode or if there isn't + * any hinting bytecode in the TrueType/OpenType font. + * + * - Exception: The font is `tricky' and requires the native hinter to + * load properly. + */ + + if ( hinter && + !( load_flags & FT_LOAD_NO_HINTING ) && + !( load_flags & FT_LOAD_NO_AUTOHINT ) && + FT_DRIVER_IS_SCALABLE( driver ) && + FT_DRIVER_USES_OUTLINES( driver ) && + !FT_IS_TRICKY( face ) && + ( ( load_flags & FT_LOAD_IGNORE_TRANSFORM ) || + ( face->internal->transform_matrix.yx == 0 && + face->internal->transform_matrix.xx != 0 ) || + ( face->internal->transform_matrix.xx == 0 && + face->internal->transform_matrix.yx != 0 ) ) ) + { + if ( ( load_flags & FT_LOAD_FORCE_AUTOHINT ) || + !FT_DRIVER_HAS_HINTER( driver ) ) + autohint = TRUE; + else + { + FT_Render_Mode mode = FT_LOAD_TARGET_MODE( load_flags ); + + + /* the check for `num_locations' assures that we actually */ + /* test for instructions in a TTF and not in a CFF-based OTF */ + if ( mode == FT_RENDER_MODE_LIGHT || + face->internal->ignore_unpatented_hinter || + ( FT_IS_SFNT( face ) && + ttface->num_locations && + ttface->max_profile.maxSizeOfInstructions == 0 ) ) + autohint = TRUE; + } + } + + if ( autohint ) + { + FT_AutoHinter_Service hinting; + + + /* try to load embedded bitmaps first if available */ + /* */ + /* XXX: This is really a temporary hack that should disappear */ + /* promptly with FreeType 2.1! */ + /* */ + if ( FT_HAS_FIXED_SIZES( face ) && + ( load_flags & FT_LOAD_NO_BITMAP ) == 0 ) + { + error = driver->clazz->load_glyph( slot, face->size, + glyph_index, + load_flags | FT_LOAD_SBITS_ONLY ); + + if ( !error && slot->format == FT_GLYPH_FORMAT_BITMAP ) + goto Load_Ok; + } + + { + FT_Face_Internal internal = face->internal; + FT_Int transform_flags = internal->transform_flags; + + + /* since the auto-hinter calls FT_Load_Glyph by itself, */ + /* make sure that glyphs aren't transformed */ + internal->transform_flags = 0; + + /* load auto-hinted outline */ + hinting = (FT_AutoHinter_Service)hinter->clazz->module_interface; + + error = hinting->load_glyph( (FT_AutoHinter)hinter, + slot, face->size, + glyph_index, load_flags ); + + internal->transform_flags = transform_flags; + } + } + else + { + error = driver->clazz->load_glyph( slot, + face->size, + glyph_index, + load_flags ); + if ( error ) + goto Exit; + + if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) + { + /* check that the loaded outline is correct */ + error = FT_Outline_Check( &slot->outline ); + if ( error ) + goto Exit; + +#ifdef GRID_FIT_METRICS + if ( !( load_flags & FT_LOAD_NO_HINTING ) ) + ft_glyphslot_grid_fit_metrics( slot, + FT_BOOL( load_flags & FT_LOAD_VERTICAL_LAYOUT ) ); +#endif + } + } + + Load_Ok: + /* compute the advance */ + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + slot->advance.x = 0; + slot->advance.y = slot->metrics.vertAdvance; + } + else + { + slot->advance.x = slot->metrics.horiAdvance; + slot->advance.y = 0; + } + + /* compute the linear advance in 16.16 pixels */ + if ( ( load_flags & FT_LOAD_LINEAR_DESIGN ) == 0 && + ( FT_IS_SCALABLE( face ) ) ) + { + FT_Size_Metrics* metrics = &face->size->metrics; + + + /* it's tricky! */ + slot->linearHoriAdvance = FT_MulDiv( slot->linearHoriAdvance, + metrics->x_scale, 64 ); + + slot->linearVertAdvance = FT_MulDiv( slot->linearVertAdvance, + metrics->y_scale, 64 ); + } + + if ( ( load_flags & FT_LOAD_IGNORE_TRANSFORM ) == 0 ) + { + FT_Face_Internal internal = face->internal; + + + /* now, transform the glyph image if needed */ + if ( internal->transform_flags ) + { + /* get renderer */ + FT_Renderer renderer = ft_lookup_glyph_renderer( slot ); + + + if ( renderer ) + error = renderer->clazz->transform_glyph( + renderer, slot, + &internal->transform_matrix, + &internal->transform_delta ); + else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) + { + /* apply `standard' transformation if no renderer is available */ + if ( internal->transform_flags & 1 ) + FT_Outline_Transform( &slot->outline, + &internal->transform_matrix ); + + if ( internal->transform_flags & 2 ) + FT_Outline_Translate( &slot->outline, + internal->transform_delta.x, + internal->transform_delta.y ); + } + + /* transform advance */ + FT_Vector_Transform( &slot->advance, &internal->transform_matrix ); + } + } + + FT_TRACE5(( " x advance: %d\n" , slot->advance.x )); + FT_TRACE5(( " y advance: %d\n" , slot->advance.y )); + + FT_TRACE5(( " linear x advance: %d\n" , slot->linearHoriAdvance )); + FT_TRACE5(( " linear y advance: %d\n" , slot->linearVertAdvance )); + + /* do we need to render the image now? */ + if ( !error && + slot->format != FT_GLYPH_FORMAT_BITMAP && + slot->format != FT_GLYPH_FORMAT_COMPOSITE && + load_flags & FT_LOAD_RENDER ) + { + FT_Render_Mode mode = FT_LOAD_TARGET_MODE( load_flags ); + + + if ( mode == FT_RENDER_MODE_NORMAL && + (load_flags & FT_LOAD_MONOCHROME ) ) + mode = FT_RENDER_MODE_MONO; + + error = FT_Render_Glyph( slot, mode ); + } + + Exit: + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Load_Char( FT_Face face, + FT_ULong char_code, + FT_Int32 load_flags ) + { + FT_UInt glyph_index; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + glyph_index = (FT_UInt)char_code; + if ( face->charmap ) + glyph_index = FT_Get_Char_Index( face, char_code ); + + return FT_Load_Glyph( face, glyph_index, load_flags ); + } + + + /* destructor for sizes list */ + static void + destroy_size( FT_Memory memory, + FT_Size size, + FT_Driver driver ) + { + /* finalize client-specific data */ + if ( size->generic.finalizer ) + size->generic.finalizer( size ); + + /* finalize format-specific stuff */ + if ( driver->clazz->done_size ) + driver->clazz->done_size( size ); + + FT_FREE( size->internal ); + FT_FREE( size ); + } + + + static void + ft_cmap_done_internal( FT_CMap cmap ); + + + static void + destroy_charmaps( FT_Face face, + FT_Memory memory ) + { + FT_Int n; + + + if ( !face ) + return; + + for ( n = 0; n < face->num_charmaps; n++ ) + { + FT_CMap cmap = FT_CMAP( face->charmaps[n] ); + + + ft_cmap_done_internal( cmap ); + + face->charmaps[n] = NULL; + } + + FT_FREE( face->charmaps ); + face->num_charmaps = 0; + } + + + /* destructor for faces list */ + static void + destroy_face( FT_Memory memory, + FT_Face face, + FT_Driver driver ) + { + FT_Driver_Class clazz = driver->clazz; + + + /* discard auto-hinting data */ + if ( face->autohint.finalizer ) + face->autohint.finalizer( face->autohint.data ); + + /* Discard glyph slots for this face. */ + /* Beware! FT_Done_GlyphSlot() changes the field `face->glyph' */ + while ( face->glyph ) + FT_Done_GlyphSlot( face->glyph ); + + /* discard all sizes for this face */ + FT_List_Finalize( &face->sizes_list, + (FT_List_Destructor)destroy_size, + memory, + driver ); + face->size = 0; + + /* now discard client data */ + if ( face->generic.finalizer ) + face->generic.finalizer( face ); + + /* discard charmaps */ + destroy_charmaps( face, memory ); + + /* finalize format-specific stuff */ + if ( clazz->done_face ) + clazz->done_face( face ); + + /* close the stream for this face if needed */ + FT_Stream_Free( + face->stream, + ( face->face_flags & FT_FACE_FLAG_EXTERNAL_STREAM ) != 0 ); + + face->stream = 0; + + /* get rid of it */ + if ( face->internal ) + { + FT_FREE( face->internal ); + } + FT_FREE( face ); + } + + + static void + Destroy_Driver( FT_Driver driver ) + { + FT_List_Finalize( &driver->faces_list, + (FT_List_Destructor)destroy_face, + driver->root.memory, + driver ); + + /* check whether we need to drop the driver's glyph loader */ + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + FT_GlyphLoader_Done( driver->glyph_loader ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* find_unicode_charmap */ + /* */ + /* <Description> */ + /* This function finds a Unicode charmap, if there is one. */ + /* And if there is more than one, it tries to favour the more */ + /* extensive one, i.e., one that supports UCS-4 against those which */ + /* are limited to the BMP (said UCS-2 encoding.) */ + /* */ + /* This function is called from open_face() (just below), and also */ + /* from FT_Select_Charmap( ..., FT_ENCODING_UNICODE ). */ + /* */ + static FT_Error + find_unicode_charmap( FT_Face face ) + { + FT_CharMap* first; + FT_CharMap* cur; + + + /* caller should have already checked that `face' is valid */ + FT_ASSERT( face ); + + first = face->charmaps; + + if ( !first ) + return FT_Err_Invalid_CharMap_Handle; + + /* + * The original TrueType specification(s) only specified charmap + * formats that are capable of mapping 8 or 16 bit character codes to + * glyph indices. + * + * However, recent updates to the Apple and OpenType specifications + * introduced new formats that are capable of mapping 32-bit character + * codes as well. And these are already used on some fonts, mainly to + * map non-BMP Asian ideographs as defined in Unicode. + * + * For compatibility purposes, these fonts generally come with + * *several* Unicode charmaps: + * + * - One of them in the "old" 16-bit format, that cannot access + * all glyphs in the font. + * + * - Another one in the "new" 32-bit format, that can access all + * the glyphs. + * + * This function has been written to always favor a 32-bit charmap + * when found. Otherwise, a 16-bit one is returned when found. + */ + + /* Since the `interesting' table, with IDs (3,10), is normally the */ + /* last one, we loop backwards. This loses with type1 fonts with */ + /* non-BMP characters (<.0001%), this wins with .ttf with non-BMP */ + /* chars (.01% ?), and this is the same about 99.99% of the time! */ + + cur = first + face->num_charmaps; /* points after the last one */ + + for ( ; --cur >= first; ) + { + if ( cur[0]->encoding == FT_ENCODING_UNICODE ) + { + /* XXX If some new encodings to represent UCS-4 are added, */ + /* they should be added here. */ + if ( ( cur[0]->platform_id == TT_PLATFORM_MICROSOFT && + cur[0]->encoding_id == TT_MS_ID_UCS_4 ) || + ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE && + cur[0]->encoding_id == TT_APPLE_ID_UNICODE_32 ) ) + { +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( cur - first > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "find_unicode_charmap: UCS-4 cmap is found " + "at too late position (%d)\n", cur - first )); + continue; + } +#endif + face->charmap = cur[0]; + return FT_Err_Ok; + } + } + } + + /* We do not have any UCS-4 charmap. */ + /* Do the loop again and search for UCS-2 charmaps. */ + cur = first + face->num_charmaps; + + for ( ; --cur >= first; ) + { + if ( cur[0]->encoding == FT_ENCODING_UNICODE ) + { +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( cur - first > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "find_unicode_charmap: UCS-2 cmap is found " + "at too late position (%d)\n", cur - first )); + continue; + } +#endif + face->charmap = cur[0]; + return FT_Err_Ok; + } + } + + return FT_Err_Invalid_CharMap_Handle; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* find_variant_selector_charmap */ + /* */ + /* <Description> */ + /* This function finds the variant selector charmap, if there is one. */ + /* There can only be one (platform=0, specific=5, format=14). */ + /* */ + static FT_CharMap + find_variant_selector_charmap( FT_Face face ) + { + FT_CharMap* first; + FT_CharMap* end; + FT_CharMap* cur; + + + /* caller should have already checked that `face' is valid */ + FT_ASSERT( face ); + + first = face->charmaps; + + if ( !first ) + return NULL; + + end = first + face->num_charmaps; /* points after the last one */ + + for ( cur = first; cur < end; ++cur ) + { + if ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE && + cur[0]->encoding_id == TT_APPLE_ID_VARIANT_SELECTOR && + FT_Get_CMap_Format( cur[0] ) == 14 ) + { +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( cur - first > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "find_unicode_charmap: UVS cmap is found " + "at too late position (%d)\n", cur - first )); + continue; + } +#endif + return cur[0]; + } + } + + return NULL; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* open_face */ + /* */ + /* <Description> */ + /* This function does some work for FT_Open_Face(). */ + /* */ + static FT_Error + open_face( FT_Driver driver, + FT_Stream stream, + FT_Long face_index, + FT_Int num_params, + FT_Parameter* params, + FT_Face *aface ) + { + FT_Memory memory; + FT_Driver_Class clazz; + FT_Face face = 0; + FT_Error error, error2; + FT_Face_Internal internal = NULL; + + + clazz = driver->clazz; + memory = driver->root.memory; + + /* allocate the face object and perform basic initialization */ + if ( FT_ALLOC( face, clazz->face_object_size ) ) + goto Fail; + + if ( FT_NEW( internal ) ) + goto Fail; + + face->internal = internal; + + face->driver = driver; + face->memory = memory; + face->stream = stream; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + { + int i; + + + face->internal->incremental_interface = 0; + for ( i = 0; i < num_params && !face->internal->incremental_interface; + i++ ) + if ( params[i].tag == FT_PARAM_TAG_INCREMENTAL ) + face->internal->incremental_interface = + (FT_Incremental_Interface)params[i].data; + } +#endif + + if ( clazz->init_face ) + error = clazz->init_face( stream, + face, + (FT_Int)face_index, + num_params, + params ); + if ( error ) + goto Fail; + + /* select Unicode charmap by default */ + error2 = find_unicode_charmap( face ); + + /* if no Unicode charmap can be found, FT_Err_Invalid_CharMap_Handle */ + /* is returned. */ + + /* no error should happen, but we want to play safe */ + if ( error2 && error2 != FT_Err_Invalid_CharMap_Handle ) + { + error = error2; + goto Fail; + } + + *aface = face; + + Fail: + if ( error ) + { + destroy_charmaps( face, memory ); + if ( clazz->done_face ) + clazz->done_face( face ); + FT_FREE( internal ); + FT_FREE( face ); + *aface = 0; + } + + return error; + } + + + /* there's a Mac-specific extended implementation of FT_New_Face() */ + /* in src/base/ftmac.c */ + +#ifndef FT_MACINTOSH + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Face( FT_Library library, + const char* pathname, + FT_Long face_index, + FT_Face *aface ) + { + FT_Open_Args args; + + + /* test for valid `library' and `aface' delayed to FT_Open_Face() */ + if ( !pathname ) + return FT_Err_Invalid_Argument; + + args.flags = FT_OPEN_PATHNAME; + args.pathname = (char*)pathname; + args.stream = NULL; + + return FT_Open_Face( library, &args, face_index, aface ); + } + +#endif + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Memory_Face( FT_Library library, + const FT_Byte* file_base, + FT_Long file_size, + FT_Long face_index, + FT_Face *aface ) + { + FT_Open_Args args; + + + /* test for valid `library' and `face' delayed to FT_Open_Face() */ + if ( !file_base ) + return FT_Err_Invalid_Argument; + + args.flags = FT_OPEN_MEMORY; + args.memory_base = file_base; + args.memory_size = file_size; + args.stream = NULL; + + return FT_Open_Face( library, &args, face_index, aface ); + } + + +#ifdef FT_CONFIG_OPTION_MAC_FONTS + + /* The behavior here is very similar to that in base/ftmac.c, but it */ + /* is designed to work on non-mac systems, so no mac specific calls. */ + /* */ + /* We look at the file and determine if it is a mac dfont file or a mac */ + /* resource file, or a macbinary file containing a mac resource file. */ + /* */ + /* Unlike ftmac I'm not going to look at a `FOND'. I don't really see */ + /* the point, especially since there may be multiple `FOND' resources. */ + /* Instead I'll just look for `sfnt' and `POST' resources, ordered as */ + /* they occur in the file. */ + /* */ + /* Note that multiple `POST' resources do not mean multiple postscript */ + /* fonts; they all get jammed together to make what is essentially a */ + /* pfb file. */ + /* */ + /* We aren't interested in `NFNT' or `FONT' bitmap resources. */ + /* */ + /* As soon as we get an `sfnt' load it into memory and pass it off to */ + /* FT_Open_Face. */ + /* */ + /* If we have a (set of) `POST' resources, massage them into a (memory) */ + /* pfb file and pass that to FT_Open_Face. (As with ftmac.c I'm not */ + /* going to try to save the kerning info. After all that lives in the */ + /* `FOND' which isn't in the file containing the `POST' resources so */ + /* we don't really have access to it. */ + + + /* Finalizer for a memory stream; gets called by FT_Done_Face(). */ + /* It frees the memory it uses. */ + /* From ftmac.c. */ + static void + memory_stream_close( FT_Stream stream ) + { + FT_Memory memory = stream->memory; + + + FT_FREE( stream->base ); + + stream->size = 0; + stream->base = 0; + stream->close = 0; + } + + + /* Create a new memory stream from a buffer and a size. */ + /* From ftmac.c. */ + static FT_Error + new_memory_stream( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Stream_CloseFunc close, + FT_Stream *astream ) + { + FT_Error error; + FT_Memory memory; + FT_Stream stream = NULL; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !base ) + return FT_Err_Invalid_Argument; + + *astream = 0; + memory = library->memory; + if ( FT_NEW( stream ) ) + goto Exit; + + FT_Stream_OpenMemory( stream, base, size ); + + stream->close = close; + + *astream = stream; + + Exit: + return error; + } + + + /* Create a new FT_Face given a buffer and a driver name. */ + /* from ftmac.c */ + FT_LOCAL_DEF( FT_Error ) + open_face_from_buffer( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Long face_index, + const char* driver_name, + FT_Face *aface ) + { + FT_Open_Args args; + FT_Error error; + FT_Stream stream = NULL; + FT_Memory memory = library->memory; + + + error = new_memory_stream( library, + base, + size, + memory_stream_close, + &stream ); + if ( error ) + { + FT_FREE( base ); + return error; + } + + args.flags = FT_OPEN_STREAM; + args.stream = stream; + if ( driver_name ) + { + args.flags = args.flags | FT_OPEN_DRIVER; + args.driver = FT_Get_Module( library, driver_name ); + } + +#ifdef FT_MACINTOSH + /* At this point, face_index has served its purpose; */ + /* whoever calls this function has already used it to */ + /* locate the correct font data. We should not propagate */ + /* this index to FT_Open_Face() (unless it is negative). */ + + if ( face_index > 0 ) + face_index = 0; +#endif + + error = FT_Open_Face( library, &args, face_index, aface ); + + if ( error == FT_Err_Ok ) + (*aface)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM; + else +#ifdef FT_MACINTOSH + FT_Stream_Free( stream, 0 ); +#else + { + FT_Stream_Close( stream ); + FT_FREE( stream ); + } +#endif + + return error; + } + + + /* Look up `TYP1' or `CID ' table from sfnt table directory. */ + /* `offset' and `length' must exclude the binary header in tables. */ + + /* Type 1 and CID-keyed font drivers should recognize sfnt-wrapped */ + /* format too. Here, since we can't expect that the TrueType font */ + /* driver is loaded unconditially, we must parse the font by */ + /* ourselves. We are only interested in the name of the table and */ + /* the offset. */ + + static FT_Error + ft_lookup_PS_in_sfnt_stream( FT_Stream stream, + FT_Long face_index, + FT_ULong* offset, + FT_ULong* length, + FT_Bool* is_sfnt_cid ) + { + FT_Error error; + FT_UShort numTables; + FT_Long pstable_index; + FT_ULong tag; + int i; + + + *offset = 0; + *length = 0; + *is_sfnt_cid = FALSE; + + /* TODO: support for sfnt-wrapped PS/CID in TTC format */ + + /* version check for 'typ1' (should be ignored?) */ + if ( FT_READ_ULONG( tag ) ) + return error; + if ( tag != TTAG_typ1 ) + return FT_Err_Unknown_File_Format; + + if ( FT_READ_USHORT( numTables ) ) + return error; + if ( FT_STREAM_SKIP( 2 * 3 ) ) /* skip binary search header */ + return error; + + pstable_index = -1; + *is_sfnt_cid = FALSE; + + for ( i = 0; i < numTables; i++ ) + { + if ( FT_READ_ULONG( tag ) || FT_STREAM_SKIP( 4 ) || + FT_READ_ULONG( *offset ) || FT_READ_ULONG( *length ) ) + return error; + + if ( tag == TTAG_CID ) + { + pstable_index++; + *offset += 22; + *length -= 22; + *is_sfnt_cid = TRUE; + if ( face_index < 0 ) + return FT_Err_Ok; + } + else if ( tag == TTAG_TYP1 ) + { + pstable_index++; + *offset += 24; + *length -= 24; + *is_sfnt_cid = FALSE; + if ( face_index < 0 ) + return FT_Err_Ok; + } + if ( face_index >= 0 && pstable_index == face_index ) + return FT_Err_Ok; + } + return FT_Err_Table_Missing; + } + + + FT_LOCAL_DEF( FT_Error ) + open_face_PS_from_sfnt_stream( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Int num_params, + FT_Parameter *params, + FT_Face *aface ) + { + FT_Error error; + FT_Memory memory = library->memory; + FT_ULong offset, length; + FT_Long pos; + FT_Bool is_sfnt_cid; + FT_Byte* sfnt_ps = NULL; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + + + pos = FT_Stream_Pos( stream ); + + error = ft_lookup_PS_in_sfnt_stream( stream, + face_index, + &offset, + &length, + &is_sfnt_cid ); + if ( error ) + goto Exit; + + if ( FT_Stream_Seek( stream, pos + offset ) ) + goto Exit; + + if ( FT_ALLOC( sfnt_ps, (FT_Long)length ) ) + goto Exit; + + error = FT_Stream_Read( stream, (FT_Byte *)sfnt_ps, length ); + if ( error ) + goto Exit; + + error = open_face_from_buffer( library, + sfnt_ps, + length, + face_index < 0 ? face_index : 0, + is_sfnt_cid ? "cid" : "type1", + aface ); + Exit: + { + FT_Error error1; + + + if ( error == FT_Err_Unknown_File_Format ) + { + error1 = FT_Stream_Seek( stream, pos ); + if ( error1 ) + return error1; + } + + return error; + } + } + + +#ifndef FT_MACINTOSH + + /* The resource header says we've got resource_cnt `POST' (type1) */ + /* resources in this file. They all need to be coalesced into */ + /* one lump which gets passed on to the type1 driver. */ + /* Here can be only one PostScript font in a file so face_index */ + /* must be 0 (or -1). */ + /* */ + static FT_Error + Mac_Read_POST_Resource( FT_Library library, + FT_Stream stream, + FT_Long *offsets, + FT_Long resource_cnt, + FT_Long face_index, + FT_Face *aface ) + { + FT_Error error = FT_Err_Cannot_Open_Resource; + FT_Memory memory = library->memory; + FT_Byte* pfb_data = NULL; + int i, type, flags; + FT_Long len; + FT_Long pfb_len, pfb_pos, pfb_lenpos; + FT_Long rlen, temp; + + + if ( face_index == -1 ) + face_index = 0; + if ( face_index != 0 ) + return error; + + /* Find the length of all the POST resources, concatenated. Assume */ + /* worst case (each resource in its own section). */ + pfb_len = 0; + for ( i = 0; i < resource_cnt; ++i ) + { + error = FT_Stream_Seek( stream, offsets[i] ); + if ( error ) + goto Exit; + if ( FT_READ_LONG( temp ) ) + goto Exit; + pfb_len += temp + 6; + } + + if ( FT_ALLOC( pfb_data, (FT_Long)pfb_len + 2 ) ) + goto Exit; + + pfb_data[0] = 0x80; + pfb_data[1] = 1; /* Ascii section */ + pfb_data[2] = 0; /* 4-byte length, fill in later */ + pfb_data[3] = 0; + pfb_data[4] = 0; + pfb_data[5] = 0; + pfb_pos = 6; + pfb_lenpos = 2; + + len = 0; + type = 1; + for ( i = 0; i < resource_cnt; ++i ) + { + error = FT_Stream_Seek( stream, offsets[i] ); + if ( error ) + goto Exit2; + if ( FT_READ_LONG( rlen ) ) + goto Exit; + if ( FT_READ_USHORT( flags ) ) + goto Exit; + FT_TRACE3(( "POST fragment[%d]: offsets=0x%08x, rlen=0x%08x, flags=0x%04x\n", + i, offsets[i], rlen, flags )); + + /* postpone the check of rlen longer than buffer until FT_Stream_Read() */ + if ( ( flags >> 8 ) == 0 ) /* Comment, should not be loaded */ + continue; + + /* the flags are part of the resource, so rlen >= 2. */ + /* but some fonts declare rlen = 0 for empty fragment */ + if ( rlen > 2 ) + rlen -= 2; + else + rlen = 0; + + if ( ( flags >> 8 ) == type ) + len += rlen; + else + { + if ( pfb_lenpos + 3 > pfb_len + 2 ) + goto Exit2; + pfb_data[pfb_lenpos ] = (FT_Byte)( len ); + pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 ); + pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 ); + pfb_data[pfb_lenpos + 3] = (FT_Byte)( len >> 24 ); + + if ( ( flags >> 8 ) == 5 ) /* End of font mark */ + break; + + if ( pfb_pos + 6 > pfb_len + 2 ) + goto Exit2; + pfb_data[pfb_pos++] = 0x80; + + type = flags >> 8; + len = rlen; + + pfb_data[pfb_pos++] = (FT_Byte)type; + pfb_lenpos = pfb_pos; + pfb_data[pfb_pos++] = 0; /* 4-byte length, fill in later */ + pfb_data[pfb_pos++] = 0; + pfb_data[pfb_pos++] = 0; + pfb_data[pfb_pos++] = 0; + } + + error = FT_Err_Cannot_Open_Resource; + if ( pfb_pos > pfb_len || pfb_pos + rlen > pfb_len ) + goto Exit2; + + error = FT_Stream_Read( stream, (FT_Byte *)pfb_data + pfb_pos, rlen ); + if ( error ) + goto Exit2; + pfb_pos += rlen; + } + + if ( pfb_pos + 2 > pfb_len + 2 ) + goto Exit2; + pfb_data[pfb_pos++] = 0x80; + pfb_data[pfb_pos++] = 3; + + if ( pfb_lenpos + 3 > pfb_len + 2 ) + goto Exit2; + pfb_data[pfb_lenpos ] = (FT_Byte)( len ); + pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 ); + pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 ); + pfb_data[pfb_lenpos + 3] = (FT_Byte)( len >> 24 ); + + return open_face_from_buffer( library, + pfb_data, + pfb_pos, + face_index, + "type1", + aface ); + + Exit2: + FT_FREE( pfb_data ); + + Exit: + return error; + } + + + /* The resource header says we've got resource_cnt `sfnt' */ + /* (TrueType/OpenType) resources in this file. Look through */ + /* them for the one indicated by face_index, load it into mem, */ + /* pass it on the the truetype driver and return it. */ + /* */ + static FT_Error + Mac_Read_sfnt_Resource( FT_Library library, + FT_Stream stream, + FT_Long *offsets, + FT_Long resource_cnt, + FT_Long face_index, + FT_Face *aface ) + { + FT_Memory memory = library->memory; + FT_Byte* sfnt_data = NULL; + FT_Error error; + FT_Long flag_offset; + FT_Long rlen; + int is_cff; + FT_Long face_index_in_resource = 0; + + + if ( face_index == -1 ) + face_index = 0; + if ( face_index >= resource_cnt ) + return FT_Err_Cannot_Open_Resource; + + flag_offset = offsets[face_index]; + error = FT_Stream_Seek( stream, flag_offset ); + if ( error ) + goto Exit; + + if ( FT_READ_LONG( rlen ) ) + goto Exit; + if ( rlen == -1 ) + return FT_Err_Cannot_Open_Resource; + + error = open_face_PS_from_sfnt_stream( library, + stream, + face_index, + 0, NULL, + aface ); + if ( !error ) + goto Exit; + + /* rewind sfnt stream before open_face_PS_from_sfnt_stream() */ + if ( FT_Stream_Seek( stream, flag_offset + 4 ) ) + goto Exit; + + if ( FT_ALLOC( sfnt_data, (FT_Long)rlen ) ) + return error; + error = FT_Stream_Read( stream, (FT_Byte *)sfnt_data, rlen ); + if ( error ) + goto Exit; + + is_cff = rlen > 4 && !ft_memcmp( sfnt_data, "OTTO", 4 ); + error = open_face_from_buffer( library, + sfnt_data, + rlen, + face_index_in_resource, + is_cff ? "cff" : "truetype", + aface ); + + Exit: + return error; + } + + + /* Check for a valid resource fork header, or a valid dfont */ + /* header. In a resource fork the first 16 bytes are repeated */ + /* at the location specified by bytes 4-7. In a dfont bytes */ + /* 4-7 point to 16 bytes of zeroes instead. */ + /* */ + static FT_Error + IsMacResource( FT_Library library, + FT_Stream stream, + FT_Long resource_offset, + FT_Long face_index, + FT_Face *aface ) + { + FT_Memory memory = library->memory; + FT_Error error; + FT_Long map_offset, rdara_pos; + FT_Long *data_offsets; + FT_Long count; + + + error = FT_Raccess_Get_HeaderInfo( library, stream, resource_offset, + &map_offset, &rdara_pos ); + if ( error ) + return error; + + error = FT_Raccess_Get_DataOffsets( library, stream, + map_offset, rdara_pos, + TTAG_POST, + &data_offsets, &count ); + if ( !error ) + { + error = Mac_Read_POST_Resource( library, stream, data_offsets, count, + face_index, aface ); + FT_FREE( data_offsets ); + /* POST exists in an LWFN providing a single face */ + if ( !error ) + (*aface)->num_faces = 1; + return error; + } + + error = FT_Raccess_Get_DataOffsets( library, stream, + map_offset, rdara_pos, + TTAG_sfnt, + &data_offsets, &count ); + if ( !error ) + { + FT_Long face_index_internal = face_index % count; + + + error = Mac_Read_sfnt_Resource( library, stream, data_offsets, count, + face_index_internal, aface ); + FT_FREE( data_offsets ); + if ( !error ) + (*aface)->num_faces = count; + } + + return error; + } + + + /* Check for a valid macbinary header, and if we find one */ + /* check that the (flattened) resource fork in it is valid. */ + /* */ + static FT_Error + IsMacBinary( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Face *aface ) + { + unsigned char header[128]; + FT_Error error; + FT_Long dlen, offset; + + + if ( NULL == stream ) + return FT_Err_Invalid_Stream_Operation; + + error = FT_Stream_Seek( stream, 0 ); + if ( error ) + goto Exit; + + error = FT_Stream_Read( stream, (FT_Byte*)header, 128 ); + if ( error ) + goto Exit; + + if ( header[ 0] != 0 || + header[74] != 0 || + header[82] != 0 || + header[ 1] == 0 || + header[ 1] > 33 || + header[63] != 0 || + header[2 + header[1]] != 0 ) + return FT_Err_Unknown_File_Format; + + dlen = ( header[0x53] << 24 ) | + ( header[0x54] << 16 ) | + ( header[0x55] << 8 ) | + header[0x56]; +#if 0 + rlen = ( header[0x57] << 24 ) | + ( header[0x58] << 16 ) | + ( header[0x59] << 8 ) | + header[0x5a]; +#endif /* 0 */ + offset = 128 + ( ( dlen + 127 ) & ~127 ); + + return IsMacResource( library, stream, offset, face_index, aface ); + + Exit: + return error; + } + + + static FT_Error + load_face_in_embedded_rfork( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Face *aface, + const FT_Open_Args *args ) + { + +#undef FT_COMPONENT +#define FT_COMPONENT trace_raccess + + FT_Memory memory = library->memory; + FT_Error error = FT_Err_Unknown_File_Format; + int i; + + char * file_names[FT_RACCESS_N_RULES]; + FT_Long offsets[FT_RACCESS_N_RULES]; + FT_Error errors[FT_RACCESS_N_RULES]; + FT_Bool is_darwin_vfs, vfs_rfork_has_no_font = FALSE; /* not tested */ + + FT_Open_Args args2; + FT_Stream stream2 = 0; + + + FT_Raccess_Guess( library, stream, + args->pathname, file_names, offsets, errors ); + + for ( i = 0; i < FT_RACCESS_N_RULES; i++ ) + { + is_darwin_vfs = ft_raccess_rule_by_darwin_vfs( library, i ); + if ( is_darwin_vfs && vfs_rfork_has_no_font ) + { + FT_TRACE3(( "Skip rule %d: darwin vfs resource fork" + " is already checked and" + " no font is found\n", i )); + continue; + } + + if ( errors[i] ) + { + FT_TRACE3(( "Error[%d] has occurred in rule %d\n", errors[i], i )); + continue; + } + + args2.flags = FT_OPEN_PATHNAME; + args2.pathname = file_names[i] ? file_names[i] : args->pathname; + + FT_TRACE3(( "Try rule %d: %s (offset=%d) ...", + i, args2.pathname, offsets[i] )); + + error = FT_Stream_New( library, &args2, &stream2 ); + if ( is_darwin_vfs && error == FT_Err_Cannot_Open_Stream ) + vfs_rfork_has_no_font = TRUE; + + if ( error ) + { + FT_TRACE3(( "failed\n" )); + continue; + } + + error = IsMacResource( library, stream2, offsets[i], + face_index, aface ); + FT_Stream_Free( stream2, 0 ); + + FT_TRACE3(( "%s\n", error ? "failed": "successful" )); + + if ( !error ) + break; + else if ( is_darwin_vfs ) + vfs_rfork_has_no_font = TRUE; + } + + for (i = 0; i < FT_RACCESS_N_RULES; i++) + { + if ( file_names[i] ) + FT_FREE( file_names[i] ); + } + + /* Caller (load_mac_face) requires FT_Err_Unknown_File_Format. */ + if ( error ) + error = FT_Err_Unknown_File_Format; + + return error; + +#undef FT_COMPONENT +#define FT_COMPONENT trace_objs + + } + + + /* Check for some macintosh formats without Carbon framework. */ + /* Is this a macbinary file? If so look at the resource fork. */ + /* Is this a mac dfont file? */ + /* Is this an old style resource fork? (in data) */ + /* Else call load_face_in_embedded_rfork to try extra rules */ + /* (defined in `ftrfork.c'). */ + /* */ + static FT_Error + load_mac_face( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Face *aface, + const FT_Open_Args *args ) + { + FT_Error error; + FT_UNUSED( args ); + + + error = IsMacBinary( library, stream, face_index, aface ); + if ( FT_ERROR_BASE( error ) == FT_Err_Unknown_File_Format ) + { + +#undef FT_COMPONENT +#define FT_COMPONENT trace_raccess + + FT_TRACE3(( "Try as dfont: %s ...", args->pathname )); + + error = IsMacResource( library, stream, 0, face_index, aface ); + + FT_TRACE3(( "%s\n", error ? "failed" : "successful" )); + +#undef FT_COMPONENT +#define FT_COMPONENT trace_objs + + } + + if ( ( FT_ERROR_BASE( error ) == FT_Err_Unknown_File_Format || + FT_ERROR_BASE( error ) == FT_Err_Invalid_Stream_Operation ) && + ( args->flags & FT_OPEN_PATHNAME ) ) + error = load_face_in_embedded_rfork( library, stream, + face_index, aface, args ); + return error; + } +#endif + +#endif /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Open_Face( FT_Library library, + const FT_Open_Args* args, + FT_Long face_index, + FT_Face *aface ) + { + FT_Error error; + FT_Driver driver; + FT_Memory memory; + FT_Stream stream = NULL; + FT_Face face = NULL; + FT_ListNode node = NULL; + FT_Bool external_stream; + FT_Module* cur; + FT_Module* limit; + + + /* test for valid `library' delayed to */ + /* FT_Stream_New() */ + + if ( ( !aface && face_index >= 0 ) || !args ) + return FT_Err_Invalid_Argument; + + external_stream = FT_BOOL( ( args->flags & FT_OPEN_STREAM ) && + args->stream ); + + /* create input stream */ + error = FT_Stream_New( library, args, &stream ); + if ( error ) + goto Fail3; + + memory = library->memory; + + /* If the font driver is specified in the `args' structure, use */ + /* it. Otherwise, we scan the list of registered drivers. */ + if ( ( args->flags & FT_OPEN_DRIVER ) && args->driver ) + { + driver = FT_DRIVER( args->driver ); + + /* not all modules are drivers, so check... */ + if ( FT_MODULE_IS_DRIVER( driver ) ) + { + FT_Int num_params = 0; + FT_Parameter* params = 0; + + + if ( args->flags & FT_OPEN_PARAMS ) + { + num_params = args->num_params; + params = args->params; + } + + error = open_face( driver, stream, face_index, + num_params, params, &face ); + if ( !error ) + goto Success; + } + else + error = FT_Err_Invalid_Handle; + + FT_Stream_Free( stream, external_stream ); + goto Fail; + } + else + { + /* check each font driver for an appropriate format */ + cur = library->modules; + limit = cur + library->num_modules; + + + for ( ; cur < limit; cur++ ) + { + /* not all modules are font drivers, so check... */ + if ( FT_MODULE_IS_DRIVER( cur[0] ) ) + { + FT_Int num_params = 0; + FT_Parameter* params = 0; + + + driver = FT_DRIVER( cur[0] ); + + if ( args->flags & FT_OPEN_PARAMS ) + { + num_params = args->num_params; + params = args->params; + } + + error = open_face( driver, stream, face_index, + num_params, params, &face ); + if ( !error ) + goto Success; + +#ifdef FT_CONFIG_OPTION_MAC_FONTS + if ( ft_strcmp( cur[0]->clazz->module_name, "truetype" ) == 0 && + FT_ERROR_BASE( error ) == FT_Err_Table_Missing ) + { + /* TrueType but essential tables are missing */ + if ( FT_Stream_Seek( stream, 0 ) ) + break; + + error = open_face_PS_from_sfnt_stream( library, + stream, + face_index, + num_params, + params, + aface ); + if ( !error ) + { + FT_Stream_Free( stream, external_stream ); + return error; + } + } +#endif + + if ( FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format ) + goto Fail3; + } + } + + Fail3: + /* If we are on the mac, and we get an FT_Err_Invalid_Stream_Operation */ + /* it may be because we have an empty data fork, so we need to check */ + /* the resource fork. */ + if ( FT_ERROR_BASE( error ) != FT_Err_Cannot_Open_Stream && + FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format && + FT_ERROR_BASE( error ) != FT_Err_Invalid_Stream_Operation ) + goto Fail2; + +#if !defined( FT_MACINTOSH ) && defined( FT_CONFIG_OPTION_MAC_FONTS ) + error = load_mac_face( library, stream, face_index, aface, args ); + if ( !error ) + { + /* We don't want to go to Success here. We've already done that. */ + /* On the other hand, if we succeeded we still need to close this */ + /* stream (we opened a different stream which extracted the */ + /* interesting information out of this stream here. That stream */ + /* will still be open and the face will point to it). */ + FT_Stream_Free( stream, external_stream ); + return error; + } + + if ( FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format ) + goto Fail2; +#endif /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */ + + /* no driver is able to handle this format */ + error = FT_Err_Unknown_File_Format; + + Fail2: + FT_Stream_Free( stream, external_stream ); + goto Fail; + } + + Success: + FT_TRACE4(( "FT_Open_Face: New face object, adding to list\n" )); + + /* set the FT_FACE_FLAG_EXTERNAL_STREAM bit for FT_Done_Face */ + if ( external_stream ) + face->face_flags |= FT_FACE_FLAG_EXTERNAL_STREAM; + + /* add the face object to its driver's list */ + if ( FT_NEW( node ) ) + goto Fail; + + node->data = face; + /* don't assume driver is the same as face->driver, so use */ + /* face->driver instead. */ + FT_List_Add( &face->driver->faces_list, node ); + + /* now allocate a glyph slot object for the face */ + FT_TRACE4(( "FT_Open_Face: Creating glyph slot\n" )); + + if ( face_index >= 0 ) + { + error = FT_New_GlyphSlot( face, NULL ); + if ( error ) + goto Fail; + + /* finally, allocate a size object for the face */ + { + FT_Size size; + + + FT_TRACE4(( "FT_Open_Face: Creating size object\n" )); + + error = FT_New_Size( face, &size ); + if ( error ) + goto Fail; + + face->size = size; + } + } + + /* some checks */ + + if ( FT_IS_SCALABLE( face ) ) + { + if ( face->height < 0 ) + face->height = (FT_Short)-face->height; + + if ( !FT_HAS_VERTICAL( face ) ) + face->max_advance_height = (FT_Short)face->height; + } + + if ( FT_HAS_FIXED_SIZES( face ) ) + { + FT_Int i; + + + for ( i = 0; i < face->num_fixed_sizes; i++ ) + { + FT_Bitmap_Size* bsize = face->available_sizes + i; + + + if ( bsize->height < 0 ) + bsize->height = (FT_Short)-bsize->height; + if ( bsize->x_ppem < 0 ) + bsize->x_ppem = (FT_Short)-bsize->x_ppem; + if ( bsize->y_ppem < 0 ) + bsize->y_ppem = -bsize->y_ppem; + } + } + + /* initialize internal face data */ + { + FT_Face_Internal internal = face->internal; + + + internal->transform_matrix.xx = 0x10000L; + internal->transform_matrix.xy = 0; + internal->transform_matrix.yx = 0; + internal->transform_matrix.yy = 0x10000L; + + internal->transform_delta.x = 0; + internal->transform_delta.y = 0; + + internal->refcount = 1; + } + + if ( aface ) + *aface = face; + else + FT_Done_Face( face ); + + goto Exit; + + Fail: + FT_Done_Face( face ); + + Exit: + FT_TRACE4(( "FT_Open_Face: Return %d\n", error )); + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Attach_File( FT_Face face, + const char* filepathname ) + { + FT_Open_Args open; + + + /* test for valid `face' delayed to FT_Attach_Stream() */ + + if ( !filepathname ) + return FT_Err_Invalid_Argument; + + open.stream = NULL; + open.flags = FT_OPEN_PATHNAME; + open.pathname = (char*)filepathname; + + return FT_Attach_Stream( face, &open ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Attach_Stream( FT_Face face, + FT_Open_Args* parameters ) + { + FT_Stream stream; + FT_Error error; + FT_Driver driver; + + FT_Driver_Class clazz; + + + /* test for valid `parameters' delayed to FT_Stream_New() */ + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + driver = face->driver; + if ( !driver ) + return FT_Err_Invalid_Driver_Handle; + + error = FT_Stream_New( driver->root.library, parameters, &stream ); + if ( error ) + goto Exit; + + /* we implement FT_Attach_Stream in each driver through the */ + /* `attach_file' interface */ + + error = FT_Err_Unimplemented_Feature; + clazz = driver->clazz; + if ( clazz->attach_file ) + error = clazz->attach_file( face, stream ); + + /* close the attached stream */ + FT_Stream_Free( stream, + (FT_Bool)( parameters->stream && + ( parameters->flags & FT_OPEN_STREAM ) ) ); + + Exit: + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Reference_Face( FT_Face face ) + { + face->internal->refcount++; + + return FT_Err_Ok; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Done_Face( FT_Face face ) + { + FT_Error error; + FT_Driver driver; + FT_Memory memory; + FT_ListNode node; + + + error = FT_Err_Invalid_Face_Handle; + if ( face && face->driver ) + { + face->internal->refcount--; + if ( face->internal->refcount > 0 ) + error = FT_Err_Ok; + else + { + driver = face->driver; + memory = driver->root.memory; + + /* find face in driver's list */ + node = FT_List_Find( &driver->faces_list, face ); + if ( node ) + { + /* remove face object from the driver's list */ + FT_List_Remove( &driver->faces_list, node ); + FT_FREE( node ); + + /* now destroy the object proper */ + destroy_face( memory, face, driver ); + error = FT_Err_Ok; + } + } + } + + return error; + } + + + /* documentation is in ftobjs.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Size( FT_Face face, + FT_Size *asize ) + { + FT_Error error; + FT_Memory memory; + FT_Driver driver; + FT_Driver_Class clazz; + + FT_Size size = 0; + FT_ListNode node = 0; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( !asize ) + return FT_Err_Invalid_Size_Handle; + + if ( !face->driver ) + return FT_Err_Invalid_Driver_Handle; + + *asize = 0; + + driver = face->driver; + clazz = driver->clazz; + memory = face->memory; + + /* Allocate new size object and perform basic initialisation */ + if ( FT_ALLOC( size, clazz->size_object_size ) || FT_NEW( node ) ) + goto Exit; + + size->face = face; + + /* for now, do not use any internal fields in size objects */ + size->internal = 0; + + if ( clazz->init_size ) + error = clazz->init_size( size ); + + /* in case of success, add to the face's list */ + if ( !error ) + { + *asize = size; + node->data = size; + FT_List_Add( &face->sizes_list, node ); + } + + Exit: + if ( error ) + { + FT_FREE( node ); + FT_FREE( size ); + } + + return error; + } + + + /* documentation is in ftobjs.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Done_Size( FT_Size size ) + { + FT_Error error; + FT_Driver driver; + FT_Memory memory; + FT_Face face; + FT_ListNode node; + + + if ( !size ) + return FT_Err_Invalid_Size_Handle; + + face = size->face; + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + driver = face->driver; + if ( !driver ) + return FT_Err_Invalid_Driver_Handle; + + memory = driver->root.memory; + + error = FT_Err_Ok; + node = FT_List_Find( &face->sizes_list, size ); + if ( node ) + { + FT_List_Remove( &face->sizes_list, node ); + FT_FREE( node ); + + if ( face->size == size ) + { + face->size = 0; + if ( face->sizes_list.head ) + face->size = (FT_Size)(face->sizes_list.head->data); + } + + destroy_size( memory, size, driver ); + } + else + error = FT_Err_Invalid_Size_Handle; + + return error; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Error ) + FT_Match_Size( FT_Face face, + FT_Size_Request req, + FT_Bool ignore_width, + FT_ULong* size_index ) + { + FT_Int i; + FT_Long w, h; + + + if ( !FT_HAS_FIXED_SIZES( face ) ) + return FT_Err_Invalid_Face_Handle; + + /* FT_Bitmap_Size doesn't provide enough info... */ + if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL ) + return FT_Err_Unimplemented_Feature; + + w = FT_REQUEST_WIDTH ( req ); + h = FT_REQUEST_HEIGHT( req ); + + if ( req->width && !req->height ) + h = w; + else if ( !req->width && req->height ) + w = h; + + w = FT_PIX_ROUND( w ); + h = FT_PIX_ROUND( h ); + + for ( i = 0; i < face->num_fixed_sizes; i++ ) + { + FT_Bitmap_Size* bsize = face->available_sizes + i; + + + if ( h != FT_PIX_ROUND( bsize->y_ppem ) ) + continue; + + if ( w == FT_PIX_ROUND( bsize->x_ppem ) || ignore_width ) + { + if ( size_index ) + *size_index = (FT_ULong)i; + + return FT_Err_Ok; + } + } + + return FT_Err_Invalid_Pixel_Size; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( void ) + ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics, + FT_Pos advance ) + { + FT_Pos height = metrics->height; + + + /* compensate for glyph with bbox above/below the baseline */ + if ( metrics->horiBearingY < 0 ) + { + if ( height < metrics->horiBearingY ) + height = metrics->horiBearingY; + } + else if ( metrics->horiBearingY > 0 ) + height -= metrics->horiBearingY; + + /* the factor 1.2 is a heuristical value */ + if ( !advance ) + advance = height * 12 / 10; + + metrics->vertBearingX = metrics->horiBearingX - metrics->horiAdvance / 2; + metrics->vertBearingY = ( advance - height ) / 2; + metrics->vertAdvance = advance; + } + + + static void + ft_recompute_scaled_metrics( FT_Face face, + FT_Size_Metrics* metrics ) + { + /* Compute root ascender, descender, test height, and max_advance */ + +#ifdef GRID_FIT_METRICS + metrics->ascender = FT_PIX_CEIL( FT_MulFix( face->ascender, + metrics->y_scale ) ); + + metrics->descender = FT_PIX_FLOOR( FT_MulFix( face->descender, + metrics->y_scale ) ); + + metrics->height = FT_PIX_ROUND( FT_MulFix( face->height, + metrics->y_scale ) ); + + metrics->max_advance = FT_PIX_ROUND( FT_MulFix( face->max_advance_width, + metrics->x_scale ) ); +#else /* !GRID_FIT_METRICS */ + metrics->ascender = FT_MulFix( face->ascender, + metrics->y_scale ); + + metrics->descender = FT_MulFix( face->descender, + metrics->y_scale ); + + metrics->height = FT_MulFix( face->height, + metrics->y_scale ); + + metrics->max_advance = FT_MulFix( face->max_advance_width, + metrics->x_scale ); +#endif /* !GRID_FIT_METRICS */ + } + + + FT_BASE_DEF( void ) + FT_Select_Metrics( FT_Face face, + FT_ULong strike_index ) + { + FT_Size_Metrics* metrics; + FT_Bitmap_Size* bsize; + + + metrics = &face->size->metrics; + bsize = face->available_sizes + strike_index; + + metrics->x_ppem = (FT_UShort)( ( bsize->x_ppem + 32 ) >> 6 ); + metrics->y_ppem = (FT_UShort)( ( bsize->y_ppem + 32 ) >> 6 ); + + if ( FT_IS_SCALABLE( face ) ) + { + metrics->x_scale = FT_DivFix( bsize->x_ppem, + face->units_per_EM ); + metrics->y_scale = FT_DivFix( bsize->y_ppem, + face->units_per_EM ); + + ft_recompute_scaled_metrics( face, metrics ); + } + else + { + metrics->x_scale = 1L << 16; + metrics->y_scale = 1L << 16; + metrics->ascender = bsize->y_ppem; + metrics->descender = 0; + metrics->height = bsize->height << 6; + metrics->max_advance = bsize->x_ppem; + } + + FT_TRACE5(( "FT_Select_Metrics:\n" )); + FT_TRACE5(( " x scale: %d (%f)\n", + metrics->x_scale, metrics->x_scale / 65536.0 )); + FT_TRACE5(( " y scale: %d (%f)\n", + metrics->y_scale, metrics->y_scale / 65536.0 )); + FT_TRACE5(( " ascender: %f\n", metrics->ascender / 64.0 )); + FT_TRACE5(( " descender: %f\n", metrics->descender / 64.0 )); + FT_TRACE5(( " height: %f\n", metrics->height / 64.0 )); + FT_TRACE5(( " max advance: %f\n", metrics->max_advance / 64.0 )); + FT_TRACE5(( " x ppem: %d\n", metrics->x_ppem )); + FT_TRACE5(( " y ppem: %d\n", metrics->y_ppem )); + } + + + FT_BASE_DEF( void ) + FT_Request_Metrics( FT_Face face, + FT_Size_Request req ) + { + FT_Size_Metrics* metrics; + + + metrics = &face->size->metrics; + + if ( FT_IS_SCALABLE( face ) ) + { + FT_Long w = 0, h = 0, scaled_w = 0, scaled_h = 0; + + + switch ( req->type ) + { + case FT_SIZE_REQUEST_TYPE_NOMINAL: + w = h = face->units_per_EM; + break; + + case FT_SIZE_REQUEST_TYPE_REAL_DIM: + w = h = face->ascender - face->descender; + break; + + case FT_SIZE_REQUEST_TYPE_BBOX: + w = face->bbox.xMax - face->bbox.xMin; + h = face->bbox.yMax - face->bbox.yMin; + break; + + case FT_SIZE_REQUEST_TYPE_CELL: + w = face->max_advance_width; + h = face->ascender - face->descender; + break; + + case FT_SIZE_REQUEST_TYPE_SCALES: + metrics->x_scale = (FT_Fixed)req->width; + metrics->y_scale = (FT_Fixed)req->height; + if ( !metrics->x_scale ) + metrics->x_scale = metrics->y_scale; + else if ( !metrics->y_scale ) + metrics->y_scale = metrics->x_scale; + goto Calculate_Ppem; + + case FT_SIZE_REQUEST_TYPE_MAX: + break; + } + + /* to be on the safe side */ + if ( w < 0 ) + w = -w; + + if ( h < 0 ) + h = -h; + + scaled_w = FT_REQUEST_WIDTH ( req ); + scaled_h = FT_REQUEST_HEIGHT( req ); + + /* determine scales */ + if ( req->width ) + { + metrics->x_scale = FT_DivFix( scaled_w, w ); + + if ( req->height ) + { + metrics->y_scale = FT_DivFix( scaled_h, h ); + + if ( req->type == FT_SIZE_REQUEST_TYPE_CELL ) + { + if ( metrics->y_scale > metrics->x_scale ) + metrics->y_scale = metrics->x_scale; + else + metrics->x_scale = metrics->y_scale; + } + } + else + { + metrics->y_scale = metrics->x_scale; + scaled_h = FT_MulDiv( scaled_w, h, w ); + } + } + else + { + metrics->x_scale = metrics->y_scale = FT_DivFix( scaled_h, h ); + scaled_w = FT_MulDiv( scaled_h, w, h ); + } + + Calculate_Ppem: + /* calculate the ppems */ + if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL ) + { + scaled_w = FT_MulFix( face->units_per_EM, metrics->x_scale ); + scaled_h = FT_MulFix( face->units_per_EM, metrics->y_scale ); + } + + metrics->x_ppem = (FT_UShort)( ( scaled_w + 32 ) >> 6 ); + metrics->y_ppem = (FT_UShort)( ( scaled_h + 32 ) >> 6 ); + + ft_recompute_scaled_metrics( face, metrics ); + } + else + { + FT_ZERO( metrics ); + metrics->x_scale = 1L << 16; + metrics->y_scale = 1L << 16; + } + + FT_TRACE5(( "FT_Request_Metrics:\n" )); + FT_TRACE5(( " x scale: %d (%f)\n", + metrics->x_scale, metrics->x_scale / 65536.0 )); + FT_TRACE5(( " y scale: %d (%f)\n", + metrics->y_scale, metrics->y_scale / 65536.0 )); + FT_TRACE5(( " ascender: %f\n", metrics->ascender / 64.0 )); + FT_TRACE5(( " descender: %f\n", metrics->descender / 64.0 )); + FT_TRACE5(( " height: %f\n", metrics->height / 64.0 )); + FT_TRACE5(( " max advance: %f\n", metrics->max_advance / 64.0 )); + FT_TRACE5(( " x ppem: %d\n", metrics->x_ppem )); + FT_TRACE5(( " y ppem: %d\n", metrics->y_ppem )); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Select_Size( FT_Face face, + FT_Int strike_index ) + { + FT_Driver_Class clazz; + + + if ( !face || !FT_HAS_FIXED_SIZES( face ) ) + return FT_Err_Invalid_Face_Handle; + + if ( strike_index < 0 || strike_index >= face->num_fixed_sizes ) + return FT_Err_Invalid_Argument; + + clazz = face->driver->clazz; + + if ( clazz->select_size ) + { + FT_Error error; + + + error = clazz->select_size( face->size, (FT_ULong)strike_index ); + +#ifdef FT_DEBUG_LEVEL_TRACE + { + FT_Size_Metrics* metrics = &face->size->metrics; + + + FT_TRACE5(( "FT_Select_Size (font driver's `select_size'):\n" )); + FT_TRACE5(( " x scale: %d (%f)\n", + metrics->x_scale, metrics->x_scale / 65536.0 )); + FT_TRACE5(( " y scale: %d (%f)\n", + metrics->y_scale, metrics->y_scale / 65536.0 )); + FT_TRACE5(( " ascender: %f\n", metrics->ascender / 64.0 )); + FT_TRACE5(( " descender: %f\n", metrics->descender / 64.0 )); + FT_TRACE5(( " height: %f\n", metrics->height / 64.0 )); + FT_TRACE5(( " max advance: %f\n", metrics->max_advance / 64.0 )); + FT_TRACE5(( " x ppem: %d\n", metrics->x_ppem )); + FT_TRACE5(( " y ppem: %d\n", metrics->y_ppem )); + } +#endif + + return error; + } + + FT_Select_Metrics( face, (FT_ULong)strike_index ); + + return FT_Err_Ok; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Request_Size( FT_Face face, + FT_Size_Request req ) + { + FT_Driver_Class clazz; + FT_ULong strike_index; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( !req || req->width < 0 || req->height < 0 || + req->type >= FT_SIZE_REQUEST_TYPE_MAX ) + return FT_Err_Invalid_Argument; + + clazz = face->driver->clazz; + + if ( clazz->request_size ) + { + FT_Error error; + + + error = clazz->request_size( face->size, req ); + +#ifdef FT_DEBUG_LEVEL_TRACE + { + FT_Size_Metrics* metrics = &face->size->metrics; + + + FT_TRACE5(( "FT_Request_Size (font driver's `request_size'):\n" )); + FT_TRACE5(( " x scale: %d (%f)\n", + metrics->x_scale, metrics->x_scale / 65536.0 )); + FT_TRACE5(( " y scale: %d (%f)\n", + metrics->y_scale, metrics->y_scale / 65536.0 )); + FT_TRACE5(( " ascender: %f\n", metrics->ascender / 64.0 )); + FT_TRACE5(( " descender: %f\n", metrics->descender / 64.0 )); + FT_TRACE5(( " height: %f\n", metrics->height / 64.0 )); + FT_TRACE5(( " max advance: %f\n", metrics->max_advance / 64.0 )); + FT_TRACE5(( " x ppem: %d\n", metrics->x_ppem )); + FT_TRACE5(( " y ppem: %d\n", metrics->y_ppem )); + } +#endif + + return error; + } + + /* + * The reason that a driver doesn't have `request_size' defined is + * either that the scaling here suffices or that the supported formats + * are bitmap-only and size matching is not implemented. + * + * In the latter case, a simple size matching is done. + */ + if ( !FT_IS_SCALABLE( face ) && FT_HAS_FIXED_SIZES( face ) ) + { + FT_Error error; + + + error = FT_Match_Size( face, req, 0, &strike_index ); + if ( error ) + return error; + + FT_TRACE3(( "FT_Request_Size: bitmap strike %lu matched\n", + strike_index )); + + return FT_Select_Size( face, (FT_Int)strike_index ); + } + + FT_Request_Metrics( face, req ); + + return FT_Err_Ok; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Char_Size( FT_Face face, + FT_F26Dot6 char_width, + FT_F26Dot6 char_height, + FT_UInt horz_resolution, + FT_UInt vert_resolution ) + { + FT_Size_RequestRec req; + + + if ( !char_width ) + char_width = char_height; + else if ( !char_height ) + char_height = char_width; + + if ( !horz_resolution ) + horz_resolution = vert_resolution; + else if ( !vert_resolution ) + vert_resolution = horz_resolution; + + if ( char_width < 1 * 64 ) + char_width = 1 * 64; + if ( char_height < 1 * 64 ) + char_height = 1 * 64; + + if ( !horz_resolution ) + horz_resolution = vert_resolution = 72; + + req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; + req.width = char_width; + req.height = char_height; + req.horiResolution = horz_resolution; + req.vertResolution = vert_resolution; + + return FT_Request_Size( face, &req ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Pixel_Sizes( FT_Face face, + FT_UInt pixel_width, + FT_UInt pixel_height ) + { + FT_Size_RequestRec req; + + + if ( pixel_width == 0 ) + pixel_width = pixel_height; + else if ( pixel_height == 0 ) + pixel_height = pixel_width; + + if ( pixel_width < 1 ) + pixel_width = 1; + if ( pixel_height < 1 ) + pixel_height = 1; + + /* use `>=' to avoid potential compiler warning on 16bit platforms */ + if ( pixel_width >= 0xFFFFU ) + pixel_width = 0xFFFFU; + if ( pixel_height >= 0xFFFFU ) + pixel_height = 0xFFFFU; + + req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; + req.width = pixel_width << 6; + req.height = pixel_height << 6; + req.horiResolution = 0; + req.vertResolution = 0; + + return FT_Request_Size( face, &req ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Kerning( FT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_UInt kern_mode, + FT_Vector *akerning ) + { + FT_Error error = FT_Err_Ok; + FT_Driver driver; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( !akerning ) + return FT_Err_Invalid_Argument; + + driver = face->driver; + + akerning->x = 0; + akerning->y = 0; + + if ( driver->clazz->get_kerning ) + { + error = driver->clazz->get_kerning( face, + left_glyph, + right_glyph, + akerning ); + if ( !error ) + { + if ( kern_mode != FT_KERNING_UNSCALED ) + { + akerning->x = FT_MulFix( akerning->x, face->size->metrics.x_scale ); + akerning->y = FT_MulFix( akerning->y, face->size->metrics.y_scale ); + + if ( kern_mode != FT_KERNING_UNFITTED ) + { + /* we scale down kerning values for small ppem values */ + /* to avoid that rounding makes them too big. */ + /* `25' has been determined heuristically. */ + if ( face->size->metrics.x_ppem < 25 ) + akerning->x = FT_MulDiv( akerning->x, + face->size->metrics.x_ppem, 25 ); + if ( face->size->metrics.y_ppem < 25 ) + akerning->y = FT_MulDiv( akerning->y, + face->size->metrics.y_ppem, 25 ); + + akerning->x = FT_PIX_ROUND( akerning->x ); + akerning->y = FT_PIX_ROUND( akerning->y ); + } + } + } + } + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Track_Kerning( FT_Face face, + FT_Fixed point_size, + FT_Int degree, + FT_Fixed* akerning ) + { + FT_Service_Kerning service; + FT_Error error = FT_Err_Ok; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( !akerning ) + return FT_Err_Invalid_Argument; + + FT_FACE_FIND_SERVICE( face, service, KERNING ); + if ( !service ) + return FT_Err_Unimplemented_Feature; + + error = service->get_track( face, + point_size, + degree, + akerning ); + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Select_Charmap( FT_Face face, + FT_Encoding encoding ) + { + FT_CharMap* cur; + FT_CharMap* limit; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( encoding == FT_ENCODING_NONE ) + return FT_Err_Invalid_Argument; + + /* FT_ENCODING_UNICODE is special. We try to find the `best' Unicode */ + /* charmap available, i.e., one with UCS-4 characters, if possible. */ + /* */ + /* This is done by find_unicode_charmap() above, to share code. */ + if ( encoding == FT_ENCODING_UNICODE ) + return find_unicode_charmap( face ); + + cur = face->charmaps; + if ( !cur ) + return FT_Err_Invalid_CharMap_Handle; + + limit = cur + face->num_charmaps; + + for ( ; cur < limit; cur++ ) + { + if ( cur[0]->encoding == encoding ) + { +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( cur - face->charmaps > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "FT_Select_Charmap: requested charmap is found (%d), " + "but in too late position to cache\n", + cur - face->charmaps )); + continue; + } +#endif + face->charmap = cur[0]; + return 0; + } + } + + return FT_Err_Invalid_Argument; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Charmap( FT_Face face, + FT_CharMap charmap ) + { + FT_CharMap* cur; + FT_CharMap* limit; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + cur = face->charmaps; + if ( !cur ) + return FT_Err_Invalid_CharMap_Handle; + if ( FT_Get_CMap_Format( charmap ) == 14 ) + return FT_Err_Invalid_Argument; + + limit = cur + face->num_charmaps; + + for ( ; cur < limit; cur++ ) + { + if ( cur[0] == charmap ) + { +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( cur - face->charmaps > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "FT_Set_Charmap: requested charmap is found (%d), " + "but in too late position to cache\n", + cur - face->charmaps )); + continue; + } +#endif + face->charmap = cur[0]; + return 0; + } + } + return FT_Err_Invalid_Argument; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Int ) + FT_Get_Charmap_Index( FT_CharMap charmap ) + { + FT_Int i; + + + if ( !charmap || !charmap->face ) + return -1; + + for ( i = 0; i < charmap->face->num_charmaps; i++ ) + if ( charmap->face->charmaps[i] == charmap ) + break; + + FT_ASSERT( i < charmap->face->num_charmaps ); + +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( i > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "FT_Get_Charmap_Index: requested charmap is found (%d), " + "but in too late position to cache\n", + i )); + return -i; + } +#endif + return i; + } + + + static void + ft_cmap_done_internal( FT_CMap cmap ) + { + FT_CMap_Class clazz = cmap->clazz; + FT_Face face = cmap->charmap.face; + FT_Memory memory = FT_FACE_MEMORY(face); + + + if ( clazz->done ) + clazz->done( cmap ); + + FT_FREE( cmap ); + } + + + FT_BASE_DEF( void ) + FT_CMap_Done( FT_CMap cmap ) + { + if ( cmap ) + { + FT_Face face = cmap->charmap.face; + FT_Memory memory = FT_FACE_MEMORY( face ); + FT_Error error; + FT_Int i, j; + + + for ( i = 0; i < face->num_charmaps; i++ ) + { + if ( (FT_CMap)face->charmaps[i] == cmap ) + { + FT_CharMap last_charmap = face->charmaps[face->num_charmaps - 1]; + + + if ( FT_RENEW_ARRAY( face->charmaps, + face->num_charmaps, + face->num_charmaps - 1 ) ) + return; + + /* remove it from our list of charmaps */ + for ( j = i + 1; j < face->num_charmaps; j++ ) + { + if ( j == face->num_charmaps - 1 ) + face->charmaps[j - 1] = last_charmap; + else + face->charmaps[j - 1] = face->charmaps[j]; + } + + face->num_charmaps--; + + if ( (FT_CMap)face->charmap == cmap ) + face->charmap = NULL; + + ft_cmap_done_internal( cmap ); + + break; + } + } + } + } + + + FT_BASE_DEF( FT_Error ) + FT_CMap_New( FT_CMap_Class clazz, + FT_Pointer init_data, + FT_CharMap charmap, + FT_CMap *acmap ) + { + FT_Error error = FT_Err_Ok; + FT_Face face; + FT_Memory memory; + FT_CMap cmap = NULL; + + + if ( clazz == NULL || charmap == NULL || charmap->face == NULL ) + return FT_Err_Invalid_Argument; + + face = charmap->face; + memory = FT_FACE_MEMORY( face ); + + if ( !FT_ALLOC( cmap, clazz->size ) ) + { + cmap->charmap = *charmap; + cmap->clazz = clazz; + + if ( clazz->init ) + { + error = clazz->init( cmap, init_data ); + if ( error ) + goto Fail; + } + + /* add it to our list of charmaps */ + if ( FT_RENEW_ARRAY( face->charmaps, + face->num_charmaps, + face->num_charmaps + 1 ) ) + goto Fail; + + face->charmaps[face->num_charmaps++] = (FT_CharMap)cmap; + } + + Exit: + if ( acmap ) + *acmap = cmap; + + return error; + + Fail: + ft_cmap_done_internal( cmap ); + cmap = NULL; + goto Exit; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt ) + FT_Get_Char_Index( FT_Face face, + FT_ULong charcode ) + { + FT_UInt result = 0; + + + if ( face && face->charmap ) + { + FT_CMap cmap = FT_CMAP( face->charmap ); + + + if ( charcode > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large charcode" )); + FT_TRACE1(( " 0x%x is truncated\n", charcode )); + } + result = cmap->clazz->char_index( cmap, (FT_UInt32)charcode ); + } + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_ULong ) + FT_Get_First_Char( FT_Face face, + FT_UInt *agindex ) + { + FT_ULong result = 0; + FT_UInt gindex = 0; + + + if ( face && face->charmap && face->num_glyphs ) + { + gindex = FT_Get_Char_Index( face, 0 ); + if ( gindex == 0 || gindex >= (FT_UInt)face->num_glyphs ) + result = FT_Get_Next_Char( face, 0, &gindex ); + } + + if ( agindex ) + *agindex = gindex; + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_ULong ) + FT_Get_Next_Char( FT_Face face, + FT_ULong charcode, + FT_UInt *agindex ) + { + FT_ULong result = 0; + FT_UInt gindex = 0; + + + if ( face && face->charmap && face->num_glyphs ) + { + FT_UInt32 code = (FT_UInt32)charcode; + FT_CMap cmap = FT_CMAP( face->charmap ); + + + do { + gindex = cmap->clazz->char_next( cmap, &code ); + } while ( gindex >= (FT_UInt)face->num_glyphs ); + + result = ( gindex == 0 ) ? 0 : code; + } + + if ( agindex ) + *agindex = gindex; + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt ) + FT_Face_GetCharVariantIndex( FT_Face face, + FT_ULong charcode, + FT_ULong variantSelector ) + { + FT_UInt result = 0; + + + if ( face && face->charmap && + face->charmap->encoding == FT_ENCODING_UNICODE ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + FT_CMap ucmap = FT_CMAP( face->charmap ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + + + if ( charcode > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large charcode" )); + FT_TRACE1(( " 0x%x is truncated\n", charcode )); + } + if ( variantSelector > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" )); + FT_TRACE1(( " 0x%x is truncated\n", variantSelector )); + } + + result = vcmap->clazz->char_var_index( vcmap, ucmap, + (FT_UInt32)charcode, + (FT_UInt32)variantSelector ); + } + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Int ) + FT_Face_GetCharVariantIsDefault( FT_Face face, + FT_ULong charcode, + FT_ULong variantSelector ) + { + FT_Int result = -1; + + + if ( face ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + + + if ( charcode > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large charcode" )); + FT_TRACE1(( " 0x%x is truncated\n", charcode )); + } + if ( variantSelector > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" )); + FT_TRACE1(( " 0x%x is truncated\n", variantSelector )); + } + + result = vcmap->clazz->char_var_default( vcmap, + (FT_UInt32)charcode, + (FT_UInt32)variantSelector ); + } + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt32* ) + FT_Face_GetVariantSelectors( FT_Face face ) + { + FT_UInt32 *result = NULL; + + + if ( face ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + result = vcmap->clazz->variant_list( vcmap, memory ); + } + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt32* ) + FT_Face_GetVariantsOfChar( FT_Face face, + FT_ULong charcode ) + { + FT_UInt32 *result = NULL; + + + if ( face ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + if ( charcode > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large charcode" )); + FT_TRACE1(( " 0x%x is truncated\n", charcode )); + } + + result = vcmap->clazz->charvariant_list( vcmap, memory, + (FT_UInt32)charcode ); + } + } + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt32* ) + FT_Face_GetCharsOfVariant( FT_Face face, + FT_ULong variantSelector ) + { + FT_UInt32 *result = NULL; + + + if ( face ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + if ( variantSelector > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" )); + FT_TRACE1(( " 0x%x is truncated\n", variantSelector )); + } + + result = vcmap->clazz->variantchar_list( vcmap, memory, + (FT_UInt32)variantSelector ); + } + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt ) + FT_Get_Name_Index( FT_Face face, + FT_String* glyph_name ) + { + FT_UInt result = 0; + + + if ( face && FT_HAS_GLYPH_NAMES( face ) ) + { + FT_Service_GlyphDict service; + + + FT_FACE_LOOKUP_SERVICE( face, + service, + GLYPH_DICT ); + + if ( service && service->name_index ) + result = service->name_index( face, glyph_name ); + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Glyph_Name( FT_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + /* clean up buffer */ + if ( buffer && buffer_max > 0 ) + ((FT_Byte*)buffer)[0] = 0; + + if ( face && + (FT_Long)glyph_index <= face->num_glyphs && + FT_HAS_GLYPH_NAMES( face ) ) + { + FT_Service_GlyphDict service; + + + FT_FACE_LOOKUP_SERVICE( face, + service, + GLYPH_DICT ); + + if ( service && service->get_name ) + error = service->get_name( face, glyph_index, buffer, buffer_max ); + } + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( const char* ) + FT_Get_Postscript_Name( FT_Face face ) + { + const char* result = NULL; + + + if ( !face ) + goto Exit; + + if ( !result ) + { + FT_Service_PsFontName service; + + + FT_FACE_LOOKUP_SERVICE( face, + service, + POSTSCRIPT_FONT_NAME ); + + if ( service && service->get_ps_font_name ) + result = service->get_ps_font_name( face ); + } + + Exit: + return result; + } + + + /* documentation is in tttables.h */ + + FT_EXPORT_DEF( void* ) + FT_Get_Sfnt_Table( FT_Face face, + FT_Sfnt_Tag tag ) + { + void* table = 0; + FT_Service_SFNT_Table service; + + + if ( face && FT_IS_SFNT( face ) ) + { + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE ); + if ( service != NULL ) + table = service->get_table( face, tag ); + } + + return table; + } + + + /* documentation is in tttables.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Load_Sfnt_Table( FT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte* buffer, + FT_ULong* length ) + { + FT_Service_SFNT_Table service; + + + if ( !face || !FT_IS_SFNT( face ) ) + return FT_Err_Invalid_Face_Handle; + + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE ); + if ( service == NULL ) + return FT_Err_Unimplemented_Feature; + + return service->load_table( face, tag, offset, buffer, length ); + } + + + /* documentation is in tttables.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Sfnt_Table_Info( FT_Face face, + FT_UInt table_index, + FT_ULong *tag, + FT_ULong *length ) + { + FT_Service_SFNT_Table service; + FT_ULong offset; + + + if ( !face || !FT_IS_SFNT( face ) ) + return FT_Err_Invalid_Face_Handle; + + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE ); + if ( service == NULL ) + return FT_Err_Unimplemented_Feature; + + return service->table_info( face, table_index, tag, &offset, length ); + } + + + /* documentation is in tttables.h */ + + FT_EXPORT_DEF( FT_ULong ) + FT_Get_CMap_Language_ID( FT_CharMap charmap ) + { + FT_Service_TTCMaps service; + FT_Face face; + TT_CMapInfo cmap_info; + + + if ( !charmap || !charmap->face ) + return 0; + + face = charmap->face; + FT_FACE_FIND_SERVICE( face, service, TT_CMAP ); + if ( service == NULL ) + return 0; + if ( service->get_cmap_info( charmap, &cmap_info )) + return 0; + + return cmap_info.language; + } + + + /* documentation is in tttables.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_Get_CMap_Format( FT_CharMap charmap ) + { + FT_Service_TTCMaps service; + FT_Face face; + TT_CMapInfo cmap_info; + + + if ( !charmap || !charmap->face ) + return -1; + + face = charmap->face; + FT_FACE_FIND_SERVICE( face, service, TT_CMAP ); + if ( service == NULL ) + return -1; + if ( service->get_cmap_info( charmap, &cmap_info )) + return -1; + + return cmap_info.format; + } + + + /* documentation is in ftsizes.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Activate_Size( FT_Size size ) + { + FT_Face face; + + + if ( size == NULL ) + return FT_Err_Invalid_Argument; + + face = size->face; + if ( face == NULL || face->driver == NULL ) + return FT_Err_Invalid_Argument; + + /* we don't need anything more complex than that; all size objects */ + /* are already listed by the face */ + face->size = size; + + return FT_Err_Ok; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** R E N D E R E R S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* lookup a renderer by glyph format in the library's list */ + FT_BASE_DEF( FT_Renderer ) + FT_Lookup_Renderer( FT_Library library, + FT_Glyph_Format format, + FT_ListNode* node ) + { + FT_ListNode cur; + FT_Renderer result = 0; + + + if ( !library ) + goto Exit; + + cur = library->renderers.head; + + if ( node ) + { + if ( *node ) + cur = (*node)->next; + *node = 0; + } + + while ( cur ) + { + FT_Renderer renderer = FT_RENDERER( cur->data ); + + + if ( renderer->glyph_format == format ) + { + if ( node ) + *node = cur; + + result = renderer; + break; + } + cur = cur->next; + } + + Exit: + return result; + } + + + static FT_Renderer + ft_lookup_glyph_renderer( FT_GlyphSlot slot ) + { + FT_Face face = slot->face; + FT_Library library = FT_FACE_LIBRARY( face ); + FT_Renderer result = library->cur_renderer; + + + if ( !result || result->glyph_format != slot->format ) + result = FT_Lookup_Renderer( library, slot->format, 0 ); + + return result; + } + + + static void + ft_set_current_renderer( FT_Library library ) + { + FT_Renderer renderer; + + + renderer = FT_Lookup_Renderer( library, FT_GLYPH_FORMAT_OUTLINE, 0 ); + library->cur_renderer = renderer; + } + + + static FT_Error + ft_add_renderer( FT_Module module ) + { + FT_Library library = module->library; + FT_Memory memory = library->memory; + FT_Error error; + FT_ListNode node = NULL; + + + if ( FT_NEW( node ) ) + goto Exit; + + { + FT_Renderer render = FT_RENDERER( module ); + FT_Renderer_Class* clazz = (FT_Renderer_Class*)module->clazz; + + + render->clazz = clazz; + render->glyph_format = clazz->glyph_format; + + /* allocate raster object if needed */ + if ( clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE && + clazz->raster_class->raster_new ) + { + error = clazz->raster_class->raster_new( memory, &render->raster ); + if ( error ) + goto Fail; + + render->raster_render = clazz->raster_class->raster_render; + render->render = clazz->render_glyph; + } + + /* add to list */ + node->data = module; + FT_List_Add( &library->renderers, node ); + + ft_set_current_renderer( library ); + } + + Fail: + if ( error ) + FT_FREE( node ); + + Exit: + return error; + } + + + static void + ft_remove_renderer( FT_Module module ) + { + FT_Library library = module->library; + FT_Memory memory = library->memory; + FT_ListNode node; + + + node = FT_List_Find( &library->renderers, module ); + if ( node ) + { + FT_Renderer render = FT_RENDERER( module ); + + + /* release raster object, if any */ + if ( render->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE && + render->raster ) + render->clazz->raster_class->raster_done( render->raster ); + + /* remove from list */ + FT_List_Remove( &library->renderers, node ); + FT_FREE( node ); + + ft_set_current_renderer( library ); + } + } + + + /* documentation is in ftrender.h */ + + FT_EXPORT_DEF( FT_Renderer ) + FT_Get_Renderer( FT_Library library, + FT_Glyph_Format format ) + { + /* test for valid `library' delayed to FT_Lookup_Renderer() */ + + return FT_Lookup_Renderer( library, format, 0 ); + } + + + /* documentation is in ftrender.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Renderer( FT_Library library, + FT_Renderer renderer, + FT_UInt num_params, + FT_Parameter* parameters ) + { + FT_ListNode node; + FT_Error error = FT_Err_Ok; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !renderer ) + return FT_Err_Invalid_Argument; + + node = FT_List_Find( &library->renderers, renderer ); + if ( !node ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + FT_List_Up( &library->renderers, node ); + + if ( renderer->glyph_format == FT_GLYPH_FORMAT_OUTLINE ) + library->cur_renderer = renderer; + + if ( num_params > 0 ) + { + FT_Renderer_SetModeFunc set_mode = renderer->clazz->set_mode; + + + for ( ; num_params > 0; num_params-- ) + { + error = set_mode( renderer, parameters->tag, parameters->data ); + if ( error ) + break; + parameters++; + } + } + + Exit: + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_Render_Glyph_Internal( FT_Library library, + FT_GlyphSlot slot, + FT_Render_Mode render_mode ) + { + FT_Error error = FT_Err_Ok; + FT_Renderer renderer; + + + /* if it is already a bitmap, no need to do anything */ + switch ( slot->format ) + { + case FT_GLYPH_FORMAT_BITMAP: /* already a bitmap, don't do anything */ + break; + + default: + { + FT_ListNode node = 0; + FT_Bool update = 0; + + + /* small shortcut for the very common case */ + if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) + { + renderer = library->cur_renderer; + node = library->renderers.head; + } + else + renderer = FT_Lookup_Renderer( library, slot->format, &node ); + + error = FT_Err_Unimplemented_Feature; + while ( renderer ) + { + error = renderer->render( renderer, slot, render_mode, NULL ); + if ( !error || + FT_ERROR_BASE( error ) != FT_Err_Cannot_Render_Glyph ) + break; + + /* FT_Err_Cannot_Render_Glyph is returned if the render mode */ + /* is unsupported by the current renderer for this glyph image */ + /* format. */ + + /* now, look for another renderer that supports the same */ + /* format. */ + renderer = FT_Lookup_Renderer( library, slot->format, &node ); + update = 1; + } + + /* if we changed the current renderer for the glyph image format */ + /* we need to select it as the next current one */ + if ( !error && update && renderer ) + FT_Set_Renderer( library, renderer, 0, 0 ); + } + } + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Render_Glyph( FT_GlyphSlot slot, + FT_Render_Mode render_mode ) + { + FT_Library library; + + + if ( !slot || !slot->face ) + return FT_Err_Invalid_Argument; + + library = FT_FACE_LIBRARY( slot->face ); + + return FT_Render_Glyph_Internal( library, slot, render_mode ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** M O D U L E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Destroy_Module */ + /* */ + /* <Description> */ + /* Destroys a given module object. For drivers, this also destroys */ + /* all child faces. */ + /* */ + /* <InOut> */ + /* module :: A handle to the target driver object. */ + /* */ + /* <Note> */ + /* The driver _must_ be LOCKED! */ + /* */ + static void + Destroy_Module( FT_Module module ) + { + FT_Memory memory = module->memory; + FT_Module_Class* clazz = module->clazz; + FT_Library library = module->library; + + + if ( library && library->auto_hinter == module ) + library->auto_hinter = 0; + + /* if the module is a renderer */ + if ( FT_MODULE_IS_RENDERER( module ) ) + ft_remove_renderer( module ); + + /* if the module is a font driver, add some steps */ + if ( FT_MODULE_IS_DRIVER( module ) ) + Destroy_Driver( FT_DRIVER( module ) ); + + /* finalize the module object */ + if ( clazz->module_done ) + clazz->module_done( module ); + + /* discard it */ + FT_FREE( module ); + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Add_Module( FT_Library library, + const FT_Module_Class* clazz ) + { + FT_Error error; + FT_Memory memory; + FT_Module module; + FT_UInt nn; + + +#define FREETYPE_VER_FIXED ( ( (FT_Long)FREETYPE_MAJOR << 16 ) | \ + FREETYPE_MINOR ) + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !clazz ) + return FT_Err_Invalid_Argument; + + /* check freetype version */ + if ( clazz->module_requires > FREETYPE_VER_FIXED ) + return FT_Err_Invalid_Version; + + /* look for a module with the same name in the library's table */ + for ( nn = 0; nn < library->num_modules; nn++ ) + { + module = library->modules[nn]; + if ( ft_strcmp( module->clazz->module_name, clazz->module_name ) == 0 ) + { + /* this installed module has the same name, compare their versions */ + if ( clazz->module_version <= module->clazz->module_version ) + return FT_Err_Lower_Module_Version; + + /* remove the module from our list, then exit the loop to replace */ + /* it by our new version.. */ + FT_Remove_Module( library, module ); + break; + } + } + + memory = library->memory; + error = FT_Err_Ok; + + if ( library->num_modules >= FT_MAX_MODULES ) + { + error = FT_Err_Too_Many_Drivers; + goto Exit; + } + + /* allocate module object */ + if ( FT_ALLOC( module, clazz->module_size ) ) + goto Exit; + + /* base initialization */ + module->library = library; + module->memory = memory; + module->clazz = (FT_Module_Class*)clazz; + + /* check whether the module is a renderer - this must be performed */ + /* before the normal module initialization */ + if ( FT_MODULE_IS_RENDERER( module ) ) + { + /* add to the renderers list */ + error = ft_add_renderer( module ); + if ( error ) + goto Fail; + } + + /* is the module a auto-hinter? */ + if ( FT_MODULE_IS_HINTER( module ) ) + library->auto_hinter = module; + + /* if the module is a font driver */ + if ( FT_MODULE_IS_DRIVER( module ) ) + { + /* allocate glyph loader if needed */ + FT_Driver driver = FT_DRIVER( module ); + + + driver->clazz = (FT_Driver_Class)module->clazz; + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + { + error = FT_GlyphLoader_New( memory, &driver->glyph_loader ); + if ( error ) + goto Fail; + } + } + + if ( clazz->module_init ) + { + error = clazz->module_init( module ); + if ( error ) + goto Fail; + } + + /* add module to the library's table */ + library->modules[library->num_modules++] = module; + + Exit: + return error; + + Fail: + if ( FT_MODULE_IS_DRIVER( module ) ) + { + FT_Driver driver = FT_DRIVER( module ); + + + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + FT_GlyphLoader_Done( driver->glyph_loader ); + } + + if ( FT_MODULE_IS_RENDERER( module ) ) + { + FT_Renderer renderer = FT_RENDERER( module ); + + + if ( renderer->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE && + renderer->raster ) + renderer->clazz->raster_class->raster_done( renderer->raster ); + } + + FT_FREE( module ); + goto Exit; + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_Module ) + FT_Get_Module( FT_Library library, + const char* module_name ) + { + FT_Module result = 0; + FT_Module* cur; + FT_Module* limit; + + + if ( !library || !module_name ) + return result; + + cur = library->modules; + limit = cur + library->num_modules; + + for ( ; cur < limit; cur++ ) + if ( ft_strcmp( cur[0]->clazz->module_name, module_name ) == 0 ) + { + result = cur[0]; + break; + } + + return result; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( const void* ) + FT_Get_Module_Interface( FT_Library library, + const char* mod_name ) + { + FT_Module module; + + + /* test for valid `library' delayed to FT_Get_Module() */ + + module = FT_Get_Module( library, mod_name ); + + return module ? module->clazz->module_interface : 0; + } + + + FT_BASE_DEF( FT_Pointer ) + ft_module_get_service( FT_Module module, + const char* service_id ) + { + FT_Pointer result = NULL; + + if ( module ) + { + FT_ASSERT( module->clazz && module->clazz->get_interface ); + + /* first, look for the service in the module + */ + if ( module->clazz->get_interface ) + result = module->clazz->get_interface( module, service_id ); + + if ( result == NULL ) + { + /* we didn't find it, look in all other modules then + */ + FT_Library library = module->library; + FT_Module* cur = library->modules; + FT_Module* limit = cur + library->num_modules; + + + for ( ; cur < limit; cur++ ) + { + if ( cur[0] != module ) + { + FT_ASSERT( cur[0]->clazz ); + + if ( cur[0]->clazz->get_interface ) + { + result = cur[0]->clazz->get_interface( cur[0], service_id ); + if ( result != NULL ) + break; + } + } + } + } + } + + return result; + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Remove_Module( FT_Library library, + FT_Module module ) + { + /* try to find the module from the table, then remove it from there */ + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( module ) + { + FT_Module* cur = library->modules; + FT_Module* limit = cur + library->num_modules; + + + for ( ; cur < limit; cur++ ) + { + if ( cur[0] == module ) + { + /* remove it from the table */ + library->num_modules--; + limit--; + while ( cur < limit ) + { + cur[0] = cur[1]; + cur++; + } + limit[0] = 0; + + /* destroy the module */ + Destroy_Module( module ); + + return FT_Err_Ok; + } + } + } + return FT_Err_Invalid_Driver_Handle; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** L I B R A R Y ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Reference_Library( FT_Library library ) + { + library->refcount++; + + return FT_Err_Ok; + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Library( FT_Memory memory, + FT_Library *alibrary ) + { + FT_Library library = NULL; + FT_Error error; + + + if ( !memory ) + return FT_Err_Invalid_Argument; + +#ifdef FT_DEBUG_LEVEL_ERROR + /* init debugging support */ + ft_debug_init(); +#endif + + /* first of all, allocate the library object */ + if ( FT_NEW( library ) ) + return error; + + library->memory = memory; + +#ifdef FT_CONFIG_OPTION_PIC + /* initialize position independent code containers */ + error = ft_pic_container_init( library ); + if ( error ) + goto Fail; +#endif + + /* allocate the render pool */ + library->raster_pool_size = FT_RENDER_POOL_SIZE; +#if FT_RENDER_POOL_SIZE > 0 + if ( FT_ALLOC( library->raster_pool, FT_RENDER_POOL_SIZE ) ) + goto Fail; +#endif + + library->version_major = FREETYPE_MAJOR; + library->version_minor = FREETYPE_MINOR; + library->version_patch = FREETYPE_PATCH; + + library->refcount = 1; + + /* That's ok now */ + *alibrary = library; + + return FT_Err_Ok; + + Fail: +#ifdef FT_CONFIG_OPTION_PIC + ft_pic_container_destroy( library ); +#endif + FT_FREE( library ); + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( void ) + FT_Library_Version( FT_Library library, + FT_Int *amajor, + FT_Int *aminor, + FT_Int *apatch ) + { + FT_Int major = 0; + FT_Int minor = 0; + FT_Int patch = 0; + + + if ( library ) + { + major = library->version_major; + minor = library->version_minor; + patch = library->version_patch; + } + + if ( amajor ) + *amajor = major; + + if ( aminor ) + *aminor = minor; + + if ( apatch ) + *apatch = patch; + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Done_Library( FT_Library library ) + { + FT_Memory memory; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + library->refcount--; + if ( library->refcount > 0 ) + goto Exit; + + memory = library->memory; + + /* + * Close all faces in the library. If we don't do this, we can have + * some subtle memory leaks. + * + * Example: + * + * - the cff font driver uses the pshinter module in cff_size_done + * - if the pshinter module is destroyed before the cff font driver, + * opened FT_Face objects managed by the driver are not properly + * destroyed, resulting in a memory leak + * + * Some faces are dependent on other faces, like Type42 faces that + * depend on TrueType faces synthesized internally. + * + * The order of drivers should be specified in driver_name[]. + */ + { + FT_UInt m, n; + const char* driver_name[] = { "type42", NULL }; + + + for ( m = 0; + m < sizeof ( driver_name ) / sizeof ( driver_name[0] ); + m++ ) + { + for ( n = 0; n < library->num_modules; n++ ) + { + FT_Module module = library->modules[n]; + const char* module_name = module->clazz->module_name; + FT_List faces; + + + if ( driver_name[m] && + ft_strcmp( module_name, driver_name[m] ) != 0 ) + continue; + + if ( ( module->clazz->module_flags & FT_MODULE_FONT_DRIVER ) == 0 ) + continue; + + FT_TRACE7(( "FT_Done_Library: close faces for %s\n", module_name )); + + faces = &FT_DRIVER( module )->faces_list; + while ( faces->head ) + { + FT_Done_Face( FT_FACE( faces->head->data ) ); + if ( faces->head ) + FT_TRACE0(( "FT_Done_Library: failed to free some faces\n" )); + } + } + } + } + + /* Close all other modules in the library */ +#if 1 + /* XXX Modules are removed in the reversed order so that */ + /* type42 module is removed before truetype module. This */ + /* avoids double free in some occasions. It is a hack. */ + while ( library->num_modules > 0 ) + FT_Remove_Module( library, + library->modules[library->num_modules - 1] ); +#else + { + FT_UInt n; + + + for ( n = 0; n < library->num_modules; n++ ) + { + FT_Module module = library->modules[n]; + + + if ( module ) + { + Destroy_Module( module ); + library->modules[n] = 0; + } + } + } +#endif + + /* Destroy raster objects */ + FT_FREE( library->raster_pool ); + library->raster_pool_size = 0; + +#ifdef FT_CONFIG_OPTION_PIC + /* Destroy pic container contents */ + ft_pic_container_destroy( library ); +#endif + + FT_FREE( library ); + + Exit: + return FT_Err_Ok; + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( void ) + FT_Set_Debug_Hook( FT_Library library, + FT_UInt hook_index, + FT_DebugHook_Func debug_hook ) + { + if ( library && debug_hook && + hook_index < + ( sizeof ( library->debug_hooks ) / sizeof ( void* ) ) ) + library->debug_hooks[hook_index] = debug_hook; + } + + + /* documentation is in ftmodapi.h */ + + FT_EXPORT_DEF( FT_TrueTypeEngineType ) + FT_Get_TrueType_Engine_Type( FT_Library library ) + { + FT_TrueTypeEngineType result = FT_TRUETYPE_ENGINE_TYPE_NONE; + + + if ( library ) + { + FT_Module module = FT_Get_Module( library, "truetype" ); + + + if ( module ) + { + FT_Service_TrueTypeEngine service; + + + service = (FT_Service_TrueTypeEngine) + ft_module_get_service( module, + FT_SERVICE_ID_TRUETYPE_ENGINE ); + if ( service ) + result = service->engine_type; + } + } + + return result; + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_BASE_DEF( FT_Error ) + ft_stub_set_char_sizes( FT_Size size, + FT_F26Dot6 width, + FT_F26Dot6 height, + FT_UInt horz_res, + FT_UInt vert_res ) + { + FT_Size_RequestRec req; + FT_Driver driver = size->face->driver; + + + if ( driver->clazz->request_size ) + { + req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; + req.width = width; + req.height = height; + + if ( horz_res == 0 ) + horz_res = vert_res; + + if ( vert_res == 0 ) + vert_res = horz_res; + + if ( horz_res == 0 ) + horz_res = vert_res = 72; + + req.horiResolution = horz_res; + req.vertResolution = vert_res; + + return driver->clazz->request_size( size, &req ); + } + + return 0; + } + + + FT_BASE_DEF( FT_Error ) + ft_stub_set_pixel_sizes( FT_Size size, + FT_UInt width, + FT_UInt height ) + { + FT_Size_RequestRec req; + FT_Driver driver = size->face->driver; + + + if ( driver->clazz->request_size ) + { + req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; + req.width = width << 6; + req.height = height << 6; + req.horiResolution = 0; + req.vertResolution = 0; + + return driver->clazz->request_size( size, &req ); + } + + return 0; + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_SubGlyph_Info( FT_GlyphSlot glyph, + FT_UInt sub_index, + FT_Int *p_index, + FT_UInt *p_flags, + FT_Int *p_arg1, + FT_Int *p_arg2, + FT_Matrix *p_transform ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + if ( glyph && + glyph->subglyphs && + glyph->format == FT_GLYPH_FORMAT_COMPOSITE && + sub_index < glyph->num_subglyphs ) + { + FT_SubGlyph subg = glyph->subglyphs + sub_index; + + + *p_index = subg->index; + *p_flags = subg->flags; + *p_arg1 = subg->arg1; + *p_arg2 = subg->arg2; + *p_transform = subg->transform; + } + + return error; + } + + +/* END */ diff --git a/src/base/ftotval.c b/src/base/ftotval.c new file mode 100644 index 0000000..694fd2b --- /dev/null +++ b/src/base/ftotval.c @@ -0,0 +1,89 @@ +/***************************************************************************/ +/* */ +/* ftotval.c */ +/* */ +/* FreeType API for validating OpenType tables (body). */ +/* */ +/* Copyright 2004, 2006, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_OPENTYPE_VALIDATE_H +#include FT_OPENTYPE_VALIDATE_H + + + /* documentation is in ftotval.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_OpenType_Validate( FT_Face face, + FT_UInt validation_flags, + FT_Bytes *BASE_table, + FT_Bytes *GDEF_table, + FT_Bytes *GPOS_table, + FT_Bytes *GSUB_table, + FT_Bytes *JSTF_table ) + { + FT_Service_OTvalidate service; + FT_Error error; + + + if ( !face ) + { + error = FT_Err_Invalid_Face_Handle; + goto Exit; + } + + if ( !( BASE_table && + GDEF_table && + GPOS_table && + GSUB_table && + JSTF_table ) ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + FT_FACE_FIND_GLOBAL_SERVICE( face, service, OPENTYPE_VALIDATE ); + + if ( service ) + error = service->validate( face, + validation_flags, + BASE_table, + GDEF_table, + GPOS_table, + GSUB_table, + JSTF_table ); + else + error = FT_Err_Unimplemented_Feature; + + Exit: + return error; + } + + + FT_EXPORT_DEF( void ) + FT_OpenType_Free( FT_Face face, + FT_Bytes table ) + { + FT_Memory memory; + + + if ( !face ) + return; + + memory = FT_FACE_MEMORY( face ); + + FT_FREE( table ); + } + + +/* END */ diff --git a/src/base/ftoutln.c b/src/base/ftoutln.c new file mode 100644 index 0000000..9ae276d --- /dev/null +++ b/src/base/ftoutln.c @@ -0,0 +1,1129 @@ +/***************************************************************************/ +/* */ +/* ftoutln.c */ +/* */ +/* FreeType outline management (body). */ +/* */ +/* Copyright 1996-2008, 2010, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* All functions are declared in freetype.h. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_OUTLINE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_TRIGONOMETRY_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_outline + + + static + const FT_Outline null_outline = { 0, 0, 0, 0, 0, 0 }; + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Decompose( FT_Outline* outline, + const FT_Outline_Funcs* func_interface, + void* user ) + { +#undef SCALED +#define SCALED( x ) ( ( (x) << shift ) - delta ) + + FT_Vector v_last; + FT_Vector v_control; + FT_Vector v_start; + + FT_Vector* point; + FT_Vector* limit; + char* tags; + + FT_Error error; + + FT_Int n; /* index of contour in outline */ + FT_UInt first; /* index of first point in contour */ + FT_Int tag; /* current point's state */ + + FT_Int shift; + FT_Pos delta; + + + if ( !outline || !func_interface ) + return FT_Err_Invalid_Argument; + + shift = func_interface->shift; + delta = func_interface->delta; + first = 0; + + for ( n = 0; n < outline->n_contours; n++ ) + { + FT_Int last; /* index of last point in contour */ + + + FT_TRACE5(( "FT_Outline_Decompose: Outline %d\n", n )); + + last = outline->contours[n]; + if ( last < 0 ) + goto Invalid_Outline; + limit = outline->points + last; + + v_start = outline->points[first]; + v_start.x = SCALED( v_start.x ); + v_start.y = SCALED( v_start.y ); + + v_last = outline->points[last]; + v_last.x = SCALED( v_last.x ); + v_last.y = SCALED( v_last.y ); + + v_control = v_start; + + point = outline->points + first; + tags = outline->tags + first; + tag = FT_CURVE_TAG( tags[0] ); + + /* A contour cannot start with a cubic control point! */ + if ( tag == FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + /* check first point to determine origin */ + if ( tag == FT_CURVE_TAG_CONIC ) + { + /* first point is conic control. Yes, this happens. */ + if ( FT_CURVE_TAG( outline->tags[last] ) == FT_CURVE_TAG_ON ) + { + /* start at last point if it is on the curve */ + v_start = v_last; + limit--; + } + else + { + /* if both first and last points are conic, */ + /* start at their middle and record its position */ + /* for closure */ + v_start.x = ( v_start.x + v_last.x ) / 2; + v_start.y = ( v_start.y + v_last.y ) / 2; + + v_last = v_start; + } + point--; + tags--; + } + + FT_TRACE5(( " move to (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0 )); + error = func_interface->move_to( &v_start, user ); + if ( error ) + goto Exit; + + while ( point < limit ) + { + point++; + tags++; + + tag = FT_CURVE_TAG( tags[0] ); + switch ( tag ) + { + case FT_CURVE_TAG_ON: /* emit a single line_to */ + { + FT_Vector vec; + + + vec.x = SCALED( point->x ); + vec.y = SCALED( point->y ); + + FT_TRACE5(( " line to (%.2f, %.2f)\n", + vec.x / 64.0, vec.y / 64.0 )); + error = func_interface->line_to( &vec, user ); + if ( error ) + goto Exit; + continue; + } + + case FT_CURVE_TAG_CONIC: /* consume conic arcs */ + v_control.x = SCALED( point->x ); + v_control.y = SCALED( point->y ); + + Do_Conic: + if ( point < limit ) + { + FT_Vector vec; + FT_Vector v_middle; + + + point++; + tags++; + tag = FT_CURVE_TAG( tags[0] ); + + vec.x = SCALED( point->x ); + vec.y = SCALED( point->y ); + + if ( tag == FT_CURVE_TAG_ON ) + { + FT_TRACE5(( " conic to (%.2f, %.2f)" + " with control (%.2f, %.2f)\n", + vec.x / 64.0, vec.y / 64.0, + v_control.x / 64.0, v_control.y / 64.0 )); + error = func_interface->conic_to( &v_control, &vec, user ); + if ( error ) + goto Exit; + continue; + } + + if ( tag != FT_CURVE_TAG_CONIC ) + goto Invalid_Outline; + + v_middle.x = ( v_control.x + vec.x ) / 2; + v_middle.y = ( v_control.y + vec.y ) / 2; + + FT_TRACE5(( " conic to (%.2f, %.2f)" + " with control (%.2f, %.2f)\n", + v_middle.x / 64.0, v_middle.y / 64.0, + v_control.x / 64.0, v_control.y / 64.0 )); + error = func_interface->conic_to( &v_control, &v_middle, user ); + if ( error ) + goto Exit; + + v_control = vec; + goto Do_Conic; + } + + FT_TRACE5(( " conic to (%.2f, %.2f)" + " with control (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0, + v_control.x / 64.0, v_control.y / 64.0 )); + error = func_interface->conic_to( &v_control, &v_start, user ); + goto Close; + + default: /* FT_CURVE_TAG_CUBIC */ + { + FT_Vector vec1, vec2; + + + if ( point + 1 > limit || + FT_CURVE_TAG( tags[1] ) != FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + point += 2; + tags += 2; + + vec1.x = SCALED( point[-2].x ); + vec1.y = SCALED( point[-2].y ); + + vec2.x = SCALED( point[-1].x ); + vec2.y = SCALED( point[-1].y ); + + if ( point <= limit ) + { + FT_Vector vec; + + + vec.x = SCALED( point->x ); + vec.y = SCALED( point->y ); + + FT_TRACE5(( " cubic to (%.2f, %.2f)" + " with controls (%.2f, %.2f) and (%.2f, %.2f)\n", + vec.x / 64.0, vec.y / 64.0, + vec1.x / 64.0, vec1.y / 64.0, + vec2.x / 64.0, vec2.y / 64.0 )); + error = func_interface->cubic_to( &vec1, &vec2, &vec, user ); + if ( error ) + goto Exit; + continue; + } + + FT_TRACE5(( " cubic to (%.2f, %.2f)" + " with controls (%.2f, %.2f) and (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0, + vec1.x / 64.0, vec1.y / 64.0, + vec2.x / 64.0, vec2.y / 64.0 )); + error = func_interface->cubic_to( &vec1, &vec2, &v_start, user ); + goto Close; + } + } + } + + /* close the contour with a line segment */ + FT_TRACE5(( " line to (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0 )); + error = func_interface->line_to( &v_start, user ); + + Close: + if ( error ) + goto Exit; + + first = last + 1; + } + + FT_TRACE5(( "FT_Outline_Decompose: Done\n", n )); + return FT_Err_Ok; + + Exit: + FT_TRACE5(( "FT_Outline_Decompose: Error %d\n", error )); + return error; + + Invalid_Outline: + return FT_Err_Invalid_Outline; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_New_Internal( FT_Memory memory, + FT_UInt numPoints, + FT_Int numContours, + FT_Outline *anoutline ) + { + FT_Error error; + + + if ( !anoutline || !memory ) + return FT_Err_Invalid_Argument; + + *anoutline = null_outline; + + if ( FT_NEW_ARRAY( anoutline->points, numPoints ) || + FT_NEW_ARRAY( anoutline->tags, numPoints ) || + FT_NEW_ARRAY( anoutline->contours, numContours ) ) + goto Fail; + + anoutline->n_points = (FT_UShort)numPoints; + anoutline->n_contours = (FT_Short)numContours; + anoutline->flags |= FT_OUTLINE_OWNER; + + return FT_Err_Ok; + + Fail: + anoutline->flags |= FT_OUTLINE_OWNER; + FT_Outline_Done_Internal( memory, anoutline ); + + return error; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_New( FT_Library library, + FT_UInt numPoints, + FT_Int numContours, + FT_Outline *anoutline ) + { + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + return FT_Outline_New_Internal( library->memory, numPoints, + numContours, anoutline ); + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Check( FT_Outline* outline ) + { + if ( outline ) + { + FT_Int n_points = outline->n_points; + FT_Int n_contours = outline->n_contours; + FT_Int end0, end; + FT_Int n; + + + /* empty glyph? */ + if ( n_points == 0 && n_contours == 0 ) + return 0; + + /* check point and contour counts */ + if ( n_points <= 0 || n_contours <= 0 ) + goto Bad; + + end0 = end = -1; + for ( n = 0; n < n_contours; n++ ) + { + end = outline->contours[n]; + + /* note that we don't accept empty contours */ + if ( end <= end0 || end >= n_points ) + goto Bad; + + end0 = end; + } + + if ( end != n_points - 1 ) + goto Bad; + + /* XXX: check the tags array */ + return 0; + } + + Bad: + return FT_Err_Invalid_Argument; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Copy( const FT_Outline* source, + FT_Outline *target ) + { + FT_Int is_owner; + + + if ( !source || !target || + source->n_points != target->n_points || + source->n_contours != target->n_contours ) + return FT_Err_Invalid_Argument; + + if ( source == target ) + return FT_Err_Ok; + + FT_ARRAY_COPY( target->points, source->points, source->n_points ); + + FT_ARRAY_COPY( target->tags, source->tags, source->n_points ); + + FT_ARRAY_COPY( target->contours, source->contours, source->n_contours ); + + /* copy all flags, except the `FT_OUTLINE_OWNER' one */ + is_owner = target->flags & FT_OUTLINE_OWNER; + target->flags = source->flags; + + target->flags &= ~FT_OUTLINE_OWNER; + target->flags |= is_owner; + + return FT_Err_Ok; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Done_Internal( FT_Memory memory, + FT_Outline* outline ) + { + if ( memory && outline ) + { + if ( outline->flags & FT_OUTLINE_OWNER ) + { + FT_FREE( outline->points ); + FT_FREE( outline->tags ); + FT_FREE( outline->contours ); + } + *outline = null_outline; + + return FT_Err_Ok; + } + else + return FT_Err_Invalid_Argument; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Done( FT_Library library, + FT_Outline* outline ) + { + /* check for valid `outline' in FT_Outline_Done_Internal() */ + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + return FT_Outline_Done_Internal( library->memory, outline ); + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( void ) + FT_Outline_Get_CBox( const FT_Outline* outline, + FT_BBox *acbox ) + { + FT_Pos xMin, yMin, xMax, yMax; + + + if ( outline && acbox ) + { + if ( outline->n_points == 0 ) + { + xMin = 0; + yMin = 0; + xMax = 0; + yMax = 0; + } + else + { + FT_Vector* vec = outline->points; + FT_Vector* limit = vec + outline->n_points; + + + xMin = xMax = vec->x; + yMin = yMax = vec->y; + vec++; + + for ( ; vec < limit; vec++ ) + { + FT_Pos x, y; + + + x = vec->x; + if ( x < xMin ) xMin = x; + if ( x > xMax ) xMax = x; + + y = vec->y; + if ( y < yMin ) yMin = y; + if ( y > yMax ) yMax = y; + } + } + acbox->xMin = xMin; + acbox->xMax = xMax; + acbox->yMin = yMin; + acbox->yMax = yMax; + } + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( void ) + FT_Outline_Translate( const FT_Outline* outline, + FT_Pos xOffset, + FT_Pos yOffset ) + { + FT_UShort n; + FT_Vector* vec; + + + if ( !outline ) + return; + + vec = outline->points; + + for ( n = 0; n < outline->n_points; n++ ) + { + vec->x += xOffset; + vec->y += yOffset; + vec++; + } + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( void ) + FT_Outline_Reverse( FT_Outline* outline ) + { + FT_UShort n; + FT_Int first, last; + + + if ( !outline ) + return; + + first = 0; + + for ( n = 0; n < outline->n_contours; n++ ) + { + last = outline->contours[n]; + + /* reverse point table */ + { + FT_Vector* p = outline->points + first; + FT_Vector* q = outline->points + last; + FT_Vector swap; + + + while ( p < q ) + { + swap = *p; + *p = *q; + *q = swap; + p++; + q--; + } + } + + /* reverse tags table */ + { + char* p = outline->tags + first; + char* q = outline->tags + last; + char swap; + + + while ( p < q ) + { + swap = *p; + *p = *q; + *q = swap; + p++; + q--; + } + } + + first = last + 1; + } + + outline->flags ^= FT_OUTLINE_REVERSE_FILL; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Render( FT_Library library, + FT_Outline* outline, + FT_Raster_Params* params ) + { + FT_Error error; + FT_Bool update = FALSE; + FT_Renderer renderer; + FT_ListNode node; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !outline || !params ) + return FT_Err_Invalid_Argument; + + renderer = library->cur_renderer; + node = library->renderers.head; + + params->source = (void*)outline; + + error = FT_Err_Cannot_Render_Glyph; + while ( renderer ) + { + error = renderer->raster_render( renderer->raster, params ); + if ( !error || FT_ERROR_BASE( error ) != FT_Err_Cannot_Render_Glyph ) + break; + + /* FT_Err_Cannot_Render_Glyph is returned if the render mode */ + /* is unsupported by the current renderer for this glyph image */ + /* format */ + + /* now, look for another renderer that supports the same */ + /* format */ + renderer = FT_Lookup_Renderer( library, FT_GLYPH_FORMAT_OUTLINE, + &node ); + update = TRUE; + } + + /* if we changed the current renderer for the glyph image format */ + /* we need to select it as the next current one */ + if ( !error && update && renderer ) + FT_Set_Renderer( library, renderer, 0, 0 ); + + return error; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Get_Bitmap( FT_Library library, + FT_Outline* outline, + const FT_Bitmap *abitmap ) + { + FT_Raster_Params params; + + + if ( !abitmap ) + return FT_Err_Invalid_Argument; + + /* other checks are delayed to FT_Outline_Render() */ + + params.target = abitmap; + params.flags = 0; + + if ( abitmap->pixel_mode == FT_PIXEL_MODE_GRAY || + abitmap->pixel_mode == FT_PIXEL_MODE_LCD || + abitmap->pixel_mode == FT_PIXEL_MODE_LCD_V ) + params.flags |= FT_RASTER_FLAG_AA; + + return FT_Outline_Render( library, outline, ¶ms ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_Transform( FT_Vector* vector, + const FT_Matrix* matrix ) + { + FT_Pos xz, yz; + + + if ( !vector || !matrix ) + return; + + xz = FT_MulFix( vector->x, matrix->xx ) + + FT_MulFix( vector->y, matrix->xy ); + + yz = FT_MulFix( vector->x, matrix->yx ) + + FT_MulFix( vector->y, matrix->yy ); + + vector->x = xz; + vector->y = yz; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( void ) + FT_Outline_Transform( const FT_Outline* outline, + const FT_Matrix* matrix ) + { + FT_Vector* vec; + FT_Vector* limit; + + + if ( !outline || !matrix ) + return; + + vec = outline->points; + limit = vec + outline->n_points; + + for ( ; vec < limit; vec++ ) + FT_Vector_Transform( vec, matrix ); + } + + +#if 0 + +#define FT_OUTLINE_GET_CONTOUR( outline, c, first, last ) \ + do { \ + (first) = ( c > 0 ) ? (outline)->points + \ + (outline)->contours[c - 1] + 1 \ + : (outline)->points; \ + (last) = (outline)->points + (outline)->contours[c]; \ + } while ( 0 ) + + + /* Is a point in some contour? */ + /* */ + /* We treat every point of the contour as if it */ + /* it were ON. That is, we allow false positives, */ + /* but disallow false negatives. (XXX really?) */ + static FT_Bool + ft_contour_has( FT_Outline* outline, + FT_Short c, + FT_Vector* point ) + { + FT_Vector* first; + FT_Vector* last; + FT_Vector* a; + FT_Vector* b; + FT_UInt n = 0; + + + FT_OUTLINE_GET_CONTOUR( outline, c, first, last ); + + for ( a = first; a <= last; a++ ) + { + FT_Pos x; + FT_Int intersect; + + + b = ( a == last ) ? first : a + 1; + + intersect = ( a->y - point->y ) ^ ( b->y - point->y ); + + /* a and b are on the same side */ + if ( intersect >= 0 ) + { + if ( intersect == 0 && a->y == point->y ) + { + if ( ( a->x <= point->x && b->x >= point->x ) || + ( a->x >= point->x && b->x <= point->x ) ) + return 1; + } + + continue; + } + + x = a->x + ( b->x - a->x ) * (point->y - a->y ) / ( b->y - a->y ); + + if ( x < point->x ) + n++; + else if ( x == point->x ) + return 1; + } + + return n & 1; + } + + + static FT_Bool + ft_contour_enclosed( FT_Outline* outline, + FT_UShort c ) + { + FT_Vector* first; + FT_Vector* last; + FT_Short i; + + + FT_OUTLINE_GET_CONTOUR( outline, c, first, last ); + + for ( i = 0; i < outline->n_contours; i++ ) + { + if ( i != c && ft_contour_has( outline, i, first ) ) + { + FT_Vector* pt; + + + for ( pt = first + 1; pt <= last; pt++ ) + if ( !ft_contour_has( outline, i, pt ) ) + return 0; + + return 1; + } + } + + return 0; + } + + + /* This version differs from the public one in that each */ + /* part (contour not enclosed in another contour) of the */ + /* outline is checked for orientation. This is */ + /* necessary for some buggy CJK fonts. */ + static FT_Orientation + ft_outline_get_orientation( FT_Outline* outline ) + { + FT_Short i; + FT_Vector* first; + FT_Vector* last; + FT_Orientation orient = FT_ORIENTATION_NONE; + + + first = outline->points; + for ( i = 0; i < outline->n_contours; i++, first = last + 1 ) + { + FT_Vector* point; + FT_Vector* xmin_point; + FT_Pos xmin; + + + last = outline->points + outline->contours[i]; + + /* skip degenerate contours */ + if ( last < first + 2 ) + continue; + + if ( ft_contour_enclosed( outline, i ) ) + continue; + + xmin = first->x; + xmin_point = first; + + for ( point = first + 1; point <= last; point++ ) + { + if ( point->x < xmin ) + { + xmin = point->x; + xmin_point = point; + } + } + + /* check the orientation of the contour */ + { + FT_Vector* prev; + FT_Vector* next; + FT_Orientation o; + + + prev = ( xmin_point == first ) ? last : xmin_point - 1; + next = ( xmin_point == last ) ? first : xmin_point + 1; + + if ( FT_Atan2( prev->x - xmin_point->x, prev->y - xmin_point->y ) > + FT_Atan2( next->x - xmin_point->x, next->y - xmin_point->y ) ) + o = FT_ORIENTATION_POSTSCRIPT; + else + o = FT_ORIENTATION_TRUETYPE; + + if ( orient == FT_ORIENTATION_NONE ) + orient = o; + else if ( orient != o ) + return FT_ORIENTATION_NONE; + } + } + + return orient; + } + +#endif /* 0 */ + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Embolden( FT_Outline* outline, + FT_Pos strength ) + { + FT_Vector* points; + FT_Vector v_prev, v_first, v_next, v_cur; + FT_Angle rotate, angle_in, angle_out; + FT_Int c, n, first; + FT_Int orientation; + + + if ( !outline ) + return FT_Err_Invalid_Argument; + + strength /= 2; + if ( strength == 0 ) + return FT_Err_Ok; + + orientation = FT_Outline_Get_Orientation( outline ); + if ( orientation == FT_ORIENTATION_NONE ) + { + if ( outline->n_contours ) + return FT_Err_Invalid_Argument; + else + return FT_Err_Ok; + } + + if ( orientation == FT_ORIENTATION_TRUETYPE ) + rotate = -FT_ANGLE_PI2; + else + rotate = FT_ANGLE_PI2; + + points = outline->points; + + first = 0; + for ( c = 0; c < outline->n_contours; c++ ) + { + int last = outline->contours[c]; + + + v_first = points[first]; + v_prev = points[last]; + v_cur = v_first; + + for ( n = first; n <= last; n++ ) + { + FT_Vector in, out; + FT_Angle angle_diff; + FT_Pos d; + FT_Fixed scale; + + + if ( n < last ) + v_next = points[n + 1]; + else + v_next = v_first; + + /* compute the in and out vectors */ + in.x = v_cur.x - v_prev.x; + in.y = v_cur.y - v_prev.y; + + out.x = v_next.x - v_cur.x; + out.y = v_next.y - v_cur.y; + + angle_in = FT_Atan2( in.x, in.y ); + angle_out = FT_Atan2( out.x, out.y ); + angle_diff = FT_Angle_Diff( angle_in, angle_out ); + scale = FT_Cos( angle_diff / 2 ); + + if ( scale < 0x4000L && scale > -0x4000L ) + in.x = in.y = 0; + else + { + d = FT_DivFix( strength, scale ); + + FT_Vector_From_Polar( &in, d, angle_in + angle_diff / 2 - rotate ); + } + + outline->points[n].x = v_cur.x + strength + in.x; + outline->points[n].y = v_cur.y + strength + in.y; + + v_prev = v_cur; + v_cur = v_next; + } + + first = last + 1; + } + + return FT_Err_Ok; + } + + + /* documentation is in ftoutln.h */ + + FT_EXPORT_DEF( FT_Orientation ) + FT_Outline_Get_Orientation( FT_Outline* outline ) + { + FT_Pos xmin = 32768L; + FT_Pos xmin_ymin = 32768L; + FT_Pos xmin_ymax = -32768L; + FT_Vector* xmin_first = NULL; + FT_Vector* xmin_last = NULL; + + short* contour; + + FT_Vector* first; + FT_Vector* last; + FT_Vector* prev; + FT_Vector* point; + + int i; + FT_Pos ray_y[3]; + FT_Orientation result[3] = + { FT_ORIENTATION_NONE, FT_ORIENTATION_NONE, FT_ORIENTATION_NONE }; + + + if ( !outline || outline->n_points <= 0 ) + return FT_ORIENTATION_TRUETYPE; + + /* We use the nonzero winding rule to find the orientation. */ + /* Since glyph outlines behave much more `regular' than arbitrary */ + /* cubic or quadratic curves, this test deals with the polygon */ + /* only which is spanned up by the control points. */ + + first = outline->points; + for ( contour = outline->contours; + contour < outline->contours + outline->n_contours; + contour++, first = last + 1 ) + { + FT_Pos contour_xmin = 32768L; + FT_Pos contour_xmax = -32768L; + FT_Pos contour_ymin = 32768L; + FT_Pos contour_ymax = -32768L; + + + last = outline->points + *contour; + + /* skip degenerate contours */ + if ( last < first + 2 ) + continue; + + for ( point = first; point <= last; ++point ) + { + if ( point->x < contour_xmin ) + contour_xmin = point->x; + + if ( point->x > contour_xmax ) + contour_xmax = point->x; + + if ( point->y < contour_ymin ) + contour_ymin = point->y; + + if ( point->y > contour_ymax ) + contour_ymax = point->y; + } + + if ( contour_xmin < xmin && + contour_xmin != contour_xmax && + contour_ymin != contour_ymax ) + { + xmin = contour_xmin; + xmin_ymin = contour_ymin; + xmin_ymax = contour_ymax; + xmin_first = first; + xmin_last = last; + } + } + + if ( xmin == 32768L ) + return FT_ORIENTATION_TRUETYPE; + + ray_y[0] = ( xmin_ymin * 3 + xmin_ymax ) >> 2; + ray_y[1] = ( xmin_ymin + xmin_ymax ) >> 1; + ray_y[2] = ( xmin_ymin + xmin_ymax * 3 ) >> 2; + + for ( i = 0; i < 3; i++ ) + { + FT_Pos left_x; + FT_Pos right_x; + FT_Vector* left1; + FT_Vector* left2; + FT_Vector* right1; + FT_Vector* right2; + + + RedoRay: + left_x = 32768L; + right_x = -32768L; + + left1 = left2 = right1 = right2 = NULL; + + prev = xmin_last; + for ( point = xmin_first; point <= xmin_last; prev = point, ++point ) + { + FT_Pos tmp_x; + + + if ( point->y == ray_y[i] || prev->y == ray_y[i] ) + { + ray_y[i]++; + goto RedoRay; + } + + if ( ( point->y < ray_y[i] && prev->y < ray_y[i] ) || + ( point->y > ray_y[i] && prev->y > ray_y[i] ) ) + continue; + + tmp_x = FT_MulDiv( point->x - prev->x, + ray_y[i] - prev->y, + point->y - prev->y ) + prev->x; + + if ( tmp_x < left_x ) + { + left_x = tmp_x; + left1 = prev; + left2 = point; + } + + if ( tmp_x > right_x ) + { + right_x = tmp_x; + right1 = prev; + right2 = point; + } + } + + if ( left1 && right1 ) + { + if ( left1->y < left2->y && right1->y > right2->y ) + result[i] = FT_ORIENTATION_TRUETYPE; + else if ( left1->y > left2->y && right1->y < right2->y ) + result[i] = FT_ORIENTATION_POSTSCRIPT; + else + result[i] = FT_ORIENTATION_NONE; + } + } + + if ( result[0] != FT_ORIENTATION_NONE && + ( result[0] == result[1] || result[0] == result[2] ) ) + return result[0]; + + if ( result[1] != FT_ORIENTATION_NONE && result[1] == result[2] ) + return result[1]; + + return FT_ORIENTATION_TRUETYPE; + } + + +/* END */ diff --git a/src/base/ftpatent.c b/src/base/ftpatent.c new file mode 100644 index 0000000..82b42f0 --- /dev/null +++ b/src/base/ftpatent.c @@ -0,0 +1,286 @@ +/***************************************************************************/ +/* */ +/* ftpatent.c */ +/* */ +/* FreeType API for checking patented TrueType bytecode instructions */ +/* (body). */ +/* */ +/* Copyright 2007, 2008, 2010 by David Turner. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_TRUETYPE_TAGS_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_STREAM_H +#include FT_SERVICE_SFNT_H +#include FT_SERVICE_TRUETYPE_GLYF_H + + + static FT_Bool + _tt_check_patents_in_range( FT_Stream stream, + FT_ULong size ) + { + FT_Bool result = FALSE; + FT_Error error; + FT_Bytes p, end; + + + if ( FT_FRAME_ENTER( size ) ) + return 0; + + p = stream->cursor; + end = p + size; + + while ( p < end ) + { + switch (p[0]) + { + case 0x06: /* SPvTL // */ + case 0x07: /* SPvTL + */ + case 0x08: /* SFvTL // */ + case 0x09: /* SFvTL + */ + case 0x0A: /* SPvFS */ + case 0x0B: /* SFvFS */ + result = TRUE; + goto Exit; + + case 0x40: + if ( p + 1 >= end ) + goto Exit; + + p += p[1] + 2; + break; + + case 0x41: + if ( p + 1 >= end ) + goto Exit; + + p += p[1] * 2 + 2; + break; + + case 0x71: /* DELTAP2 */ + case 0x72: /* DELTAP3 */ + case 0x73: /* DELTAC0 */ + case 0x74: /* DELTAC1 */ + case 0x75: /* DELTAC2 */ + result = TRUE; + goto Exit; + + case 0xB0: + case 0xB1: + case 0xB2: + case 0xB3: + case 0xB4: + case 0xB5: + case 0xB6: + case 0xB7: + p += ( p[0] - 0xB0 ) + 2; + break; + + case 0xB8: + case 0xB9: + case 0xBA: + case 0xBB: + case 0xBC: + case 0xBD: + case 0xBE: + case 0xBF: + p += ( p[0] - 0xB8 ) * 2 + 3; + break; + + default: + p += 1; + break; + } + } + + Exit: + FT_UNUSED( error ); + FT_FRAME_EXIT(); + return result; + } + + + static FT_Bool + _tt_check_patents_in_table( FT_Face face, + FT_ULong tag ) + { + FT_Stream stream = face->stream; + FT_Error error = FT_Err_Ok; + FT_Service_SFNT_Table service; + FT_Bool result = FALSE; + + + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE ); + + if ( service ) + { + FT_UInt i = 0; + FT_ULong tag_i = 0, offset_i = 0, length_i = 0; + + + for ( i = 0; !error && tag_i != tag ; i++ ) + error = service->table_info( face, i, + &tag_i, &offset_i, &length_i ); + + if ( error || + FT_STREAM_SEEK( offset_i ) ) + goto Exit; + + result = _tt_check_patents_in_range( stream, length_i ); + } + + Exit: + return result; + } + + + static FT_Bool + _tt_face_check_patents( FT_Face face ) + { + FT_Stream stream = face->stream; + FT_UInt gindex; + FT_Error error; + FT_Bool result; + + FT_Service_TTGlyf service; + + + result = _tt_check_patents_in_table( face, TTAG_fpgm ); + if ( result ) + goto Exit; + + result = _tt_check_patents_in_table( face, TTAG_prep ); + if ( result ) + goto Exit; + + FT_FACE_FIND_SERVICE( face, service, TT_GLYF ); + if ( service == NULL ) + goto Exit; + + for ( gindex = 0; gindex < (FT_UInt)face->num_glyphs; gindex++ ) + { + FT_ULong offset, num_ins, size; + FT_Int num_contours; + + + offset = service->get_location( face, gindex, &size ); + if ( size == 0 ) + continue; + + if ( FT_STREAM_SEEK( offset ) || + FT_READ_SHORT( num_contours ) ) + continue; + + if ( num_contours >= 0 ) /* simple glyph */ + { + if ( FT_STREAM_SKIP( 8 + num_contours * 2 ) ) + continue; + } + else /* compound glyph */ + { + FT_Bool has_instr = 0; + + + if ( FT_STREAM_SKIP( 8 ) ) + continue; + + /* now read each component */ + for (;;) + { + FT_UInt flags, toskip; + + + if( FT_READ_USHORT( flags ) ) + break; + + toskip = 2 + 1 + 1; + + if ( ( flags & ( 1 << 0 ) ) != 0 ) /* ARGS_ARE_WORDS */ + toskip += 2; + + if ( ( flags & ( 1 << 3 ) ) != 0 ) /* WE_HAVE_A_SCALE */ + toskip += 2; + else if ( ( flags & ( 1 << 6 ) ) != 0 ) /* WE_HAVE_X_Y_SCALE */ + toskip += 4; + else if ( ( flags & ( 1 << 7 ) ) != 0 ) /* WE_HAVE_A_2x2 */ + toskip += 8; + + if ( ( flags & ( 1 << 8 ) ) != 0 ) /* WE_HAVE_INSTRUCTIONS */ + has_instr = 1; + + if ( FT_STREAM_SKIP( toskip ) ) + goto NextGlyph; + + if ( ( flags & ( 1 << 5 ) ) == 0 ) /* MORE_COMPONENTS */ + break; + } + + if ( !has_instr ) + goto NextGlyph; + } + + if ( FT_READ_USHORT( num_ins ) ) + continue; + + result = _tt_check_patents_in_range( stream, num_ins ); + if ( result ) + goto Exit; + + NextGlyph: + ; + } + + Exit: + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Bool ) + FT_Face_CheckTrueTypePatents( FT_Face face ) + { + FT_Bool result = FALSE; + + + if ( face && FT_IS_SFNT( face ) ) + result = _tt_face_check_patents( face ); + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Bool ) + FT_Face_SetUnpatentedHinting( FT_Face face, + FT_Bool value ) + { + FT_Bool result = FALSE; + + +#if defined( TT_CONFIG_OPTION_UNPATENTED_HINTING ) && \ + !defined( TT_CONFIG_OPTION_BYTECODE_INTERPRETER ) + if ( face && FT_IS_SFNT( face ) ) + { + result = !face->internal->ignore_unpatented_hinter; + face->internal->ignore_unpatented_hinter = !value; + } +#else + FT_UNUSED( face ); + FT_UNUSED( value ); +#endif + + return result; + } + +/* END */ diff --git a/src/base/ftpfr.c b/src/base/ftpfr.c new file mode 100644 index 0000000..3a0f92d --- /dev/null +++ b/src/base/ftpfr.c @@ -0,0 +1,144 @@ +/***************************************************************************/ +/* */ +/* ftpfr.c */ +/* */ +/* FreeType API for accessing PFR-specific data (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_PFR_H + + + /* check the format */ + static FT_Service_PfrMetrics + ft_pfr_check( FT_Face face ) + { + FT_Service_PfrMetrics service = NULL; + + + if ( face ) + FT_FACE_LOOKUP_SERVICE( face, service, PFR_METRICS ); + + return service; + } + + + /* documentation is in ftpfr.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PFR_Metrics( FT_Face face, + FT_UInt *aoutline_resolution, + FT_UInt *ametrics_resolution, + FT_Fixed *ametrics_x_scale, + FT_Fixed *ametrics_y_scale ) + { + FT_Error error = FT_Err_Ok; + FT_Service_PfrMetrics service; + + + if ( !face ) + return FT_Err_Invalid_Argument; + + service = ft_pfr_check( face ); + if ( service ) + { + error = service->get_metrics( face, + aoutline_resolution, + ametrics_resolution, + ametrics_x_scale, + ametrics_y_scale ); + } + else + { + FT_Fixed x_scale, y_scale; + + + /* this is not a PFR font */ + if ( aoutline_resolution ) + *aoutline_resolution = face->units_per_EM; + + if ( ametrics_resolution ) + *ametrics_resolution = face->units_per_EM; + + x_scale = y_scale = 0x10000L; + if ( face->size ) + { + x_scale = face->size->metrics.x_scale; + y_scale = face->size->metrics.y_scale; + } + + if ( ametrics_x_scale ) + *ametrics_x_scale = x_scale; + + if ( ametrics_y_scale ) + *ametrics_y_scale = y_scale; + + error = FT_Err_Unknown_File_Format; + } + + return error; + } + + + /* documentation is in ftpfr.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PFR_Kerning( FT_Face face, + FT_UInt left, + FT_UInt right, + FT_Vector *avector ) + { + FT_Error error; + FT_Service_PfrMetrics service; + + + if ( !face ) + return FT_Err_Invalid_Argument; + + service = ft_pfr_check( face ); + if ( service ) + error = service->get_kerning( face, left, right, avector ); + else + error = FT_Get_Kerning( face, left, right, + FT_KERNING_UNSCALED, avector ); + + return error; + } + + + /* documentation is in ftpfr.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PFR_Advance( FT_Face face, + FT_UInt gindex, + FT_Pos *aadvance ) + { + FT_Error error; + FT_Service_PfrMetrics service; + + + service = ft_pfr_check( face ); + if ( service ) + { + error = service->get_advance( face, gindex, aadvance ); + } + else + /* XXX: TODO: PROVIDE ADVANCE-LOADING METHOD TO ALL FONT DRIVERS */ + error = FT_Err_Invalid_Argument; + + return error; + } + + +/* END */ diff --git a/src/base/ftpic.c b/src/base/ftpic.c new file mode 100644 index 0000000..b74e90d --- /dev/null +++ b/src/base/ftpic.c @@ -0,0 +1,54 @@ +/***************************************************************************/ +/* */ +/* ftpic.c */ +/* */ +/* The FreeType position independent code services (body). */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "basepic.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* documentation is in ftpic.h */ + + FT_BASE_DEF( FT_Error ) + ft_pic_container_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = FT_Err_Ok; + + FT_MEM_SET( pic_container, 0, sizeof ( *pic_container ) ); + + error = ft_base_pic_init( library ); + if ( error ) + return error; + + return FT_Err_Ok; + } + + + /* Destroy the contents of the container. */ + FT_BASE_DEF( void ) + ft_pic_container_destroy( FT_Library library ) + { + ft_base_pic_free( library ); + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/src/base/ftrfork.c b/src/base/ftrfork.c new file mode 100644 index 0000000..01d8625 --- /dev/null +++ b/src/base/ftrfork.c @@ -0,0 +1,849 @@ +/***************************************************************************/ +/* */ +/* ftrfork.c */ +/* */ +/* Embedded resource forks accessor (body). */ +/* */ +/* Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010 by */ +/* Masatake YAMATO and Redhat K.K. */ +/* */ +/* FT_Raccess_Get_HeaderInfo() and raccess_guess_darwin_hfsplus() are */ +/* derived from ftobjs.c. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* Development of the code in this file is support of */ +/* Information-technology Promotion Agency, Japan. */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_RFORK_H +#include "basepic.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_raccess + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** Resource fork directory access ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + FT_BASE_DEF( FT_Error ) + FT_Raccess_Get_HeaderInfo( FT_Library library, + FT_Stream stream, + FT_Long rfork_offset, + FT_Long *map_offset, + FT_Long *rdata_pos ) + { + FT_Error error; + unsigned char head[16], head2[16]; + FT_Long map_pos, rdata_len; + int allzeros, allmatch, i; + FT_Long type_list; + + FT_UNUSED( library ); + + + error = FT_Stream_Seek( stream, rfork_offset ); + if ( error ) + return error; + + error = FT_Stream_Read( stream, (FT_Byte *)head, 16 ); + if ( error ) + return error; + + *rdata_pos = rfork_offset + ( ( head[0] << 24 ) | + ( head[1] << 16 ) | + ( head[2] << 8 ) | + head[3] ); + map_pos = rfork_offset + ( ( head[4] << 24 ) | + ( head[5] << 16 ) | + ( head[6] << 8 ) | + head[7] ); + rdata_len = ( head[ 8] << 24 ) | + ( head[ 9] << 16 ) | + ( head[10] << 8 ) | + head[11]; + + /* map_len = head[12] .. head[15] */ + + if ( *rdata_pos + rdata_len != map_pos || map_pos == rfork_offset ) + return FT_Err_Unknown_File_Format; + + error = FT_Stream_Seek( stream, map_pos ); + if ( error ) + return error; + + head2[15] = (FT_Byte)( head[15] + 1 ); /* make it be different */ + + error = FT_Stream_Read( stream, (FT_Byte*)head2, 16 ); + if ( error ) + return error; + + allzeros = 1; + allmatch = 1; + for ( i = 0; i < 16; ++i ) + { + if ( head2[i] != 0 ) + allzeros = 0; + if ( head2[i] != head[i] ) + allmatch = 0; + } + if ( !allzeros && !allmatch ) + return FT_Err_Unknown_File_Format; + + /* If we have reached this point then it is probably a mac resource */ + /* file. Now, does it contain any interesting resources? */ + /* Skip handle to next resource map, the file resource number, and */ + /* attributes. */ + (void)FT_STREAM_SKIP( 4 /* skip handle to next resource map */ + + 2 /* skip file resource number */ + + 2 ); /* skip attributes */ + + if ( FT_READ_USHORT( type_list ) ) + return error; + if ( type_list == -1 ) + return FT_Err_Unknown_File_Format; + + error = FT_Stream_Seek( stream, map_pos + type_list ); + if ( error ) + return error; + + *map_offset = map_pos + type_list; + return FT_Err_Ok; + } + + + static int + ft_raccess_sort_ref_by_id( FT_RFork_Ref* a, + FT_RFork_Ref* b ) + { + if ( a->res_id < b->res_id ) + return -1; + else if ( a->res_id > b->res_id ) + return 1; + else + return 0; + } + + + FT_BASE_DEF( FT_Error ) + FT_Raccess_Get_DataOffsets( FT_Library library, + FT_Stream stream, + FT_Long map_offset, + FT_Long rdata_pos, + FT_Long tag, + FT_Long **offsets, + FT_Long *count ) + { + FT_Error error; + int i, j, cnt, subcnt; + FT_Long tag_internal, rpos; + FT_Memory memory = library->memory; + FT_Long temp; + FT_Long *offsets_internal = NULL; + FT_RFork_Ref *ref = NULL; + + + error = FT_Stream_Seek( stream, map_offset ); + if ( error ) + return error; + + if ( FT_READ_USHORT( cnt ) ) + return error; + cnt++; + + for ( i = 0; i < cnt; ++i ) + { + if ( FT_READ_LONG( tag_internal ) || + FT_READ_USHORT( subcnt ) || + FT_READ_USHORT( rpos ) ) + return error; + + FT_TRACE2(( "Resource tags: %c%c%c%c\n", + (char)( 0xff & ( tag_internal >> 24 ) ), + (char)( 0xff & ( tag_internal >> 16 ) ), + (char)( 0xff & ( tag_internal >> 8 ) ), + (char)( 0xff & ( tag_internal >> 0 ) ) )); + + if ( tag_internal == tag ) + { + *count = subcnt + 1; + rpos += map_offset; + + error = FT_Stream_Seek( stream, rpos ); + if ( error ) + return error; + + if ( FT_NEW_ARRAY( ref, *count ) ) + return error; + + for ( j = 0; j < *count; ++j ) + { + if ( FT_READ_USHORT( ref[j].res_id ) ) + goto Exit; + if ( FT_STREAM_SKIP( 2 ) ) /* resource name */ + goto Exit; + if ( FT_READ_LONG( temp ) ) + goto Exit; + if ( FT_STREAM_SKIP( 4 ) ) /* mbz */ + goto Exit; + + ref[j].offset = temp & 0xFFFFFFL; + } + + ft_qsort( ref, *count, sizeof ( FT_RFork_Ref ), + ( int(*)(const void*, const void*) ) + ft_raccess_sort_ref_by_id ); + + if ( FT_NEW_ARRAY( offsets_internal, *count ) ) + goto Exit; + + /* XXX: duplicated reference ID, + * gap between reference IDs are acceptable? + * further investigation on Apple implementation is needed. + */ + for ( j = 0; j < *count; ++j ) + offsets_internal[j] = rdata_pos + ref[j].offset; + + *offsets = offsets_internal; + error = FT_Err_Ok; + + Exit: + FT_FREE( ref ); + return error; + } + } + + return FT_Err_Cannot_Open_Resource; + } + + +#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** Guessing functions ****/ + /**** ****/ + /**** When you add a new guessing function, ****/ + /**** update FT_RACCESS_N_RULES in ftrfork.h. ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + raccess_guess_apple_double( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_apple_single( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_darwin_ufs_export( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_darwin_newvfs( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_darwin_hfsplus( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_vfat( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_linux_cap( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_linux_double( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_linux_netatalk( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + + CONST_FT_RFORK_RULE_ARRAY_BEGIN(ft_raccess_guess_table, + ft_raccess_guess_rec) + CONST_FT_RFORK_RULE_ARRAY_ENTRY(apple_double, apple_double) + CONST_FT_RFORK_RULE_ARRAY_ENTRY(apple_single, apple_single) + CONST_FT_RFORK_RULE_ARRAY_ENTRY(darwin_ufs_export, darwin_ufs_export) + CONST_FT_RFORK_RULE_ARRAY_ENTRY(darwin_newvfs, darwin_newvfs) + CONST_FT_RFORK_RULE_ARRAY_ENTRY(darwin_hfsplus, darwin_hfsplus) + CONST_FT_RFORK_RULE_ARRAY_ENTRY(vfat, vfat) + CONST_FT_RFORK_RULE_ARRAY_ENTRY(linux_cap, linux_cap) + CONST_FT_RFORK_RULE_ARRAY_ENTRY(linux_double, linux_double) + CONST_FT_RFORK_RULE_ARRAY_ENTRY(linux_netatalk, linux_netatalk) + CONST_FT_RFORK_RULE_ARRAY_END + + + /*************************************************************************/ + /**** ****/ + /**** Helper functions ****/ + /**** ****/ + /*************************************************************************/ + + static FT_Error + raccess_guess_apple_generic( FT_Library library, + FT_Stream stream, + char *base_file_name, + FT_Int32 magic, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_linux_double_from_file_name( FT_Library library, + char * file_name, + FT_Long *result_offset ); + + static char * + raccess_make_file_name( FT_Memory memory, + const char *original_name, + const char *insertion ); + + FT_BASE_DEF( void ) + FT_Raccess_Guess( FT_Library library, + FT_Stream stream, + char* base_name, + char **new_names, + FT_Long *offsets, + FT_Error *errors ) + { + FT_Long i; + + + for ( i = 0; i < FT_RACCESS_N_RULES; i++ ) + { + new_names[i] = NULL; + if ( NULL != stream ) + errors[i] = FT_Stream_Seek( stream, 0 ); + else + errors[i] = FT_Err_Ok; + + if ( errors[i] ) + continue ; + + errors[i] = (FT_RACCESS_GUESS_TABLE_GET[i].func)( library, + stream, base_name, + &(new_names[i]), + &(offsets[i]) ); + } + + return; + } + + +#ifndef FT_MACINTOSH + static FT_RFork_Rule + raccess_get_rule_type_from_rule_index( FT_Library library, + FT_UInt rule_index ) + { + FT_UNUSED( library ); + + if ( rule_index >= FT_RACCESS_N_RULES ) + return FT_RFork_Rule_invalid; + + return FT_RACCESS_GUESS_TABLE_GET[rule_index].type; + } + + + /* + * For this function, refer ftbase.h. + */ + FT_LOCAL_DEF( FT_Bool ) + ft_raccess_rule_by_darwin_vfs( FT_Library library, + FT_UInt rule_index ) + { + switch( raccess_get_rule_type_from_rule_index( library, rule_index ) ) + { + case FT_RFork_Rule_darwin_newvfs: + case FT_RFork_Rule_darwin_hfsplus: + return TRUE; + + default: + return FALSE; + } + } +#endif + + + static FT_Error + raccess_guess_apple_double( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + FT_Int32 magic = ( 0x00 << 24 ) | + ( 0x05 << 16 ) | + ( 0x16 << 8 ) | + 0x07; + + + *result_file_name = NULL; + if ( NULL == stream ) + return FT_Err_Cannot_Open_Stream; + + return raccess_guess_apple_generic( library, stream, base_file_name, + magic, result_offset ); + } + + + static FT_Error + raccess_guess_apple_single( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + FT_Int32 magic = ( 0x00 << 24 ) | + ( 0x05 << 16 ) | + ( 0x16 << 8 ) | + 0x00; + + + *result_file_name = NULL; + if ( NULL == stream ) + return FT_Err_Cannot_Open_Stream; + + return raccess_guess_apple_generic( library, stream, base_file_name, + magic, result_offset ); + } + + + static FT_Error + raccess_guess_darwin_ufs_export( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Error error; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + newpath = raccess_make_file_name( memory, base_file_name, "._" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + error = raccess_guess_linux_double_from_file_name( library, newpath, + result_offset ); + if ( !error ) + *result_file_name = newpath; + else + FT_FREE( newpath ); + + return error; + } + + + static FT_Error + raccess_guess_darwin_hfsplus( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + /* + Only meaningful on systems with hfs+ drivers (or Macs). + */ + FT_Error error; + char* newpath = NULL; + FT_Memory memory; + FT_Long base_file_len = ft_strlen( base_file_name ); + + FT_UNUSED( stream ); + + + memory = library->memory; + + if ( base_file_len + 6 > FT_INT_MAX ) + return FT_Err_Array_Too_Large; + + if ( FT_ALLOC( newpath, base_file_len + 6 ) ) + return error; + + FT_MEM_COPY( newpath, base_file_name, base_file_len ); + FT_MEM_COPY( newpath + base_file_len, "/rsrc", 6 ); + + *result_file_name = newpath; + *result_offset = 0; + + return FT_Err_Ok; + } + + + static FT_Error + raccess_guess_darwin_newvfs( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + /* + Only meaningful on systems with Mac OS X (> 10.1). + */ + FT_Error error; + char* newpath = NULL; + FT_Memory memory; + FT_Long base_file_len = ft_strlen( base_file_name ); + + FT_UNUSED( stream ); + + + memory = library->memory; + + if ( base_file_len + 18 > FT_INT_MAX ) + return FT_Err_Array_Too_Large; + + if ( FT_ALLOC( newpath, base_file_len + 18 ) ) + return error; + + FT_MEM_COPY( newpath, base_file_name, base_file_len ); + FT_MEM_COPY( newpath + base_file_len, "/..namedfork/rsrc", 18 ); + + *result_file_name = newpath; + *result_offset = 0; + + return FT_Err_Ok; + } + + + static FT_Error + raccess_guess_vfat( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + newpath = raccess_make_file_name( memory, base_file_name, + "resource.frk/" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + *result_file_name = newpath; + *result_offset = 0; + + return FT_Err_Ok; + } + + + static FT_Error + raccess_guess_linux_cap( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + newpath = raccess_make_file_name( memory, base_file_name, ".resource/" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + *result_file_name = newpath; + *result_offset = 0; + + return FT_Err_Ok; + } + + + static FT_Error + raccess_guess_linux_double( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Error error; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + newpath = raccess_make_file_name( memory, base_file_name, "%" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + error = raccess_guess_linux_double_from_file_name( library, newpath, + result_offset ); + if ( !error ) + *result_file_name = newpath; + else + FT_FREE( newpath ); + + return error; + } + + + static FT_Error + raccess_guess_linux_netatalk( FT_Library library, + FT_Stream stream, + char *base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Error error; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + newpath = raccess_make_file_name( memory, base_file_name, + ".AppleDouble/" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + error = raccess_guess_linux_double_from_file_name( library, newpath, + result_offset ); + if ( !error ) + *result_file_name = newpath; + else + FT_FREE( newpath ); + + return error; + } + + + static FT_Error + raccess_guess_apple_generic( FT_Library library, + FT_Stream stream, + char *base_file_name, + FT_Int32 magic, + FT_Long *result_offset ) + { + FT_Int32 magic_from_stream; + FT_Error error; + FT_Int32 version_number = 0; + FT_UShort n_of_entries; + + int i; + FT_UInt32 entry_id, entry_offset, entry_length = 0; + + const FT_UInt32 resource_fork_entry_id = 0x2; + + FT_UNUSED( library ); + FT_UNUSED( base_file_name ); + FT_UNUSED( version_number ); + FT_UNUSED( entry_length ); + + + if ( FT_READ_LONG( magic_from_stream ) ) + return error; + if ( magic_from_stream != magic ) + return FT_Err_Unknown_File_Format; + + if ( FT_READ_LONG( version_number ) ) + return error; + + /* filler */ + error = FT_Stream_Skip( stream, 16 ); + if ( error ) + return error; + + if ( FT_READ_USHORT( n_of_entries ) ) + return error; + if ( n_of_entries == 0 ) + return FT_Err_Unknown_File_Format; + + for ( i = 0; i < n_of_entries; i++ ) + { + if ( FT_READ_LONG( entry_id ) ) + return error; + if ( entry_id == resource_fork_entry_id ) + { + if ( FT_READ_LONG( entry_offset ) || + FT_READ_LONG( entry_length ) ) + continue; + *result_offset = entry_offset; + + return FT_Err_Ok; + } + else + { + error = FT_Stream_Skip( stream, 4 + 4 ); /* offset + length */ + if ( error ) + return error; + } + } + + return FT_Err_Unknown_File_Format; + } + + + static FT_Error + raccess_guess_linux_double_from_file_name( FT_Library library, + char *file_name, + FT_Long *result_offset ) + { + FT_Open_Args args2; + FT_Stream stream2; + char * nouse = NULL; + FT_Error error; + + + args2.flags = FT_OPEN_PATHNAME; + args2.pathname = file_name; + error = FT_Stream_New( library, &args2, &stream2 ); + if ( error ) + return error; + + error = raccess_guess_apple_double( library, stream2, file_name, + &nouse, result_offset ); + + FT_Stream_Free( stream2, 0 ); + + return error; + } + + + static char* + raccess_make_file_name( FT_Memory memory, + const char *original_name, + const char *insertion ) + { + char* new_name = NULL; + const char* tmp; + const char* slash; + size_t new_length; + FT_Error error = FT_Err_Ok; + + FT_UNUSED( error ); + + + new_length = ft_strlen( original_name ) + ft_strlen( insertion ); + if ( FT_ALLOC( new_name, new_length + 1 ) ) + return NULL; + + tmp = ft_strrchr( original_name, '/' ); + if ( tmp ) + { + ft_strncpy( new_name, original_name, tmp - original_name + 1 ); + new_name[tmp - original_name + 1] = '\0'; + slash = tmp + 1; + } + else + { + slash = original_name; + new_name[0] = '\0'; + } + + ft_strcat( new_name, insertion ); + ft_strcat( new_name, slash ); + + return new_name; + } + + +#else /* !FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */ + + + /*************************************************************************/ + /* Dummy function; just sets errors */ + /*************************************************************************/ + + FT_BASE_DEF( void ) + FT_Raccess_Guess( FT_Library library, + FT_Stream stream, + char *base_name, + char **new_names, + FT_Long *offsets, + FT_Error *errors ) + { + int i; + + FT_UNUSED( library ); + FT_UNUSED( stream ); + FT_UNUSED( base_name ); + + + for ( i = 0; i < FT_RACCESS_N_RULES; i++ ) + { + new_names[i] = NULL; + offsets[i] = 0; + errors[i] = FT_Err_Unimplemented_Feature; + } + } + + +#endif /* !FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */ + + +/* END */ diff --git a/src/base/ftsnames.c b/src/base/ftsnames.c new file mode 100644 index 0000000..3447888 --- /dev/null +++ b/src/base/ftsnames.c @@ -0,0 +1,94 @@ +/***************************************************************************/ +/* */ +/* ftsnames.c */ +/* */ +/* Simple interface to access SFNT name tables (which are used */ +/* to hold font names, copyright info, notices, etc.) (body). */ +/* */ +/* This is _not_ used to retrieve glyph names! */ +/* */ +/* Copyright 1996-2001, 2002, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_SFNT_NAMES_H +#include FT_INTERNAL_TRUETYPE_TYPES_H +#include FT_INTERNAL_STREAM_H + + +#ifdef TT_CONFIG_OPTION_SFNT_NAMES + + + /* documentation is in ftsnames.h */ + + FT_EXPORT_DEF( FT_UInt ) + FT_Get_Sfnt_Name_Count( FT_Face face ) + { + return ( face && FT_IS_SFNT( face ) ) ? ((TT_Face)face)->num_names : 0; + } + + + /* documentation is in ftsnames.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Sfnt_Name( FT_Face face, + FT_UInt idx, + FT_SfntName *aname ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + if ( aname && face && FT_IS_SFNT( face ) ) + { + TT_Face ttface = (TT_Face)face; + + + if ( idx < (FT_UInt)ttface->num_names ) + { + TT_NameEntryRec* entry = ttface->name_table.names + idx; + + + /* load name on demand */ + if ( entry->stringLength > 0 && entry->string == NULL ) + { + FT_Memory memory = face->memory; + FT_Stream stream = face->stream; + + + if ( FT_NEW_ARRAY ( entry->string, entry->stringLength ) || + FT_STREAM_SEEK( entry->stringOffset ) || + FT_STREAM_READ( entry->string, entry->stringLength ) ) + { + FT_FREE( entry->string ); + entry->stringLength = 0; + } + } + + aname->platform_id = entry->platformID; + aname->encoding_id = entry->encodingID; + aname->language_id = entry->languageID; + aname->name_id = entry->nameID; + aname->string = (FT_Byte*)entry->string; + aname->string_len = entry->stringLength; + + error = FT_Err_Ok; + } + } + + return error; + } + + +#endif /* TT_CONFIG_OPTION_SFNT_NAMES */ + + +/* END */ diff --git a/src/base/ftstream.c b/src/base/ftstream.c new file mode 100644 index 0000000..fc2868e --- /dev/null +++ b/src/base/ftstream.c @@ -0,0 +1,864 @@ +/***************************************************************************/ +/* */ +/* ftstream.c */ +/* */ +/* I/O stream support (body). */ +/* */ +/* Copyright 2000-2002, 2004-2006, 2008-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_stream + + + FT_BASE_DEF( void ) + FT_Stream_OpenMemory( FT_Stream stream, + const FT_Byte* base, + FT_ULong size ) + { + stream->base = (FT_Byte*) base; + stream->size = size; + stream->pos = 0; + stream->cursor = 0; + stream->read = 0; + stream->close = 0; + } + + + FT_BASE_DEF( void ) + FT_Stream_Close( FT_Stream stream ) + { + if ( stream && stream->close ) + stream->close( stream ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_Seek( FT_Stream stream, + FT_ULong pos ) + { + FT_Error error = FT_Err_Ok; + + + if ( stream->read ) + { + if ( stream->read( stream, pos, 0, 0 ) ) + { + FT_ERROR(( "FT_Stream_Seek:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + pos, stream->size )); + + error = FT_Err_Invalid_Stream_Operation; + } + } + /* note that seeking to the first position after the file is valid */ + else if ( pos > stream->size ) + { + FT_ERROR(( "FT_Stream_Seek:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + pos, stream->size )); + + error = FT_Err_Invalid_Stream_Operation; + } + + if ( !error ) + stream->pos = pos; + + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_Skip( FT_Stream stream, + FT_Long distance ) + { + if ( distance < 0 ) + return FT_Err_Invalid_Stream_Operation; + + return FT_Stream_Seek( stream, (FT_ULong)( stream->pos + distance ) ); + } + + + FT_BASE_DEF( FT_Long ) + FT_Stream_Pos( FT_Stream stream ) + { + return stream->pos; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_Read( FT_Stream stream, + FT_Byte* buffer, + FT_ULong count ) + { + return FT_Stream_ReadAt( stream, stream->pos, buffer, count ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_ReadAt( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_Error error = FT_Err_Ok; + FT_ULong read_bytes; + + + if ( pos >= stream->size ) + { + FT_ERROR(( "FT_Stream_ReadAt:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + pos, stream->size )); + + return FT_Err_Invalid_Stream_Operation; + } + + if ( stream->read ) + read_bytes = stream->read( stream, pos, buffer, count ); + else + { + read_bytes = stream->size - pos; + if ( read_bytes > count ) + read_bytes = count; + + FT_MEM_COPY( buffer, stream->base + pos, read_bytes ); + } + + stream->pos = pos + read_bytes; + + if ( read_bytes < count ) + { + FT_ERROR(( "FT_Stream_ReadAt:" + " invalid read; expected %lu bytes, got %lu\n", + count, read_bytes )); + + error = FT_Err_Invalid_Stream_Operation; + } + + return error; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_TryRead( FT_Stream stream, + FT_Byte* buffer, + FT_ULong count ) + { + FT_ULong read_bytes = 0; + + + if ( stream->pos >= stream->size ) + goto Exit; + + if ( stream->read ) + read_bytes = stream->read( stream, stream->pos, buffer, count ); + else + { + read_bytes = stream->size - stream->pos; + if ( read_bytes > count ) + read_bytes = count; + + FT_MEM_COPY( buffer, stream->base + stream->pos, read_bytes ); + } + + stream->pos += read_bytes; + + Exit: + return read_bytes; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_ExtractFrame( FT_Stream stream, + FT_ULong count, + FT_Byte** pbytes ) + { + FT_Error error; + + + error = FT_Stream_EnterFrame( stream, count ); + if ( !error ) + { + *pbytes = (FT_Byte*)stream->cursor; + + /* equivalent to FT_Stream_ExitFrame(), with no memory block release */ + stream->cursor = 0; + stream->limit = 0; + } + + return error; + } + + + FT_BASE_DEF( void ) + FT_Stream_ReleaseFrame( FT_Stream stream, + FT_Byte** pbytes ) + { + if ( stream && stream->read ) + { + FT_Memory memory = stream->memory; + +#ifdef FT_DEBUG_MEMORY + ft_mem_free( memory, *pbytes ); + *pbytes = NULL; +#else + FT_FREE( *pbytes ); +#endif + } + *pbytes = 0; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_EnterFrame( FT_Stream stream, + FT_ULong count ) + { + FT_Error error = FT_Err_Ok; + FT_ULong read_bytes; + + + /* check for nested frame access */ + FT_ASSERT( stream && stream->cursor == 0 ); + + if ( stream->read ) + { + /* allocate the frame in memory */ + FT_Memory memory = stream->memory; + + + /* simple sanity check */ + if ( count > stream->size ) + { + FT_ERROR(( "FT_Stream_EnterFrame:" + " frame size (%lu) larger than stream size (%lu)\n", + count, stream->size )); + + error = FT_Err_Invalid_Stream_Operation; + goto Exit; + } + +#ifdef FT_DEBUG_MEMORY + /* assume _ft_debug_file and _ft_debug_lineno are already set */ + stream->base = (unsigned char*)ft_mem_qalloc( memory, count, &error ); + if ( error ) + goto Exit; +#else + if ( FT_QALLOC( stream->base, count ) ) + goto Exit; +#endif + /* read it */ + read_bytes = stream->read( stream, stream->pos, + stream->base, count ); + if ( read_bytes < count ) + { + FT_ERROR(( "FT_Stream_EnterFrame:" + " invalid read; expected %lu bytes, got %lu\n", + count, read_bytes )); + + FT_FREE( stream->base ); + error = FT_Err_Invalid_Stream_Operation; + } + stream->cursor = stream->base; + stream->limit = stream->cursor + count; + stream->pos += read_bytes; + } + else + { + /* check current and new position */ + if ( stream->pos >= stream->size || + stream->size - stream->pos < count ) + { + FT_ERROR(( "FT_Stream_EnterFrame:" + " invalid i/o; pos = 0x%lx, count = %lu, size = 0x%lx\n", + stream->pos, count, stream->size )); + + error = FT_Err_Invalid_Stream_Operation; + goto Exit; + } + + /* set cursor */ + stream->cursor = stream->base + stream->pos; + stream->limit = stream->cursor + count; + stream->pos += count; + } + + Exit: + return error; + } + + + FT_BASE_DEF( void ) + FT_Stream_ExitFrame( FT_Stream stream ) + { + /* IMPORTANT: The assertion stream->cursor != 0 was removed, given */ + /* that it is possible to access a frame of length 0 in */ + /* some weird fonts (usually, when accessing an array of */ + /* 0 records, like in some strange kern tables). */ + /* */ + /* In this case, the loader code handles the 0-length table */ + /* gracefully; however, stream.cursor is really set to 0 by the */ + /* FT_Stream_EnterFrame() call, and this is not an error. */ + /* */ + FT_ASSERT( stream ); + + if ( stream->read ) + { + FT_Memory memory = stream->memory; + +#ifdef FT_DEBUG_MEMORY + ft_mem_free( memory, stream->base ); + stream->base = NULL; +#else + FT_FREE( stream->base ); +#endif + } + stream->cursor = 0; + stream->limit = 0; + } + + + FT_BASE_DEF( FT_Char ) + FT_Stream_GetChar( FT_Stream stream ) + { + FT_Char result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + if ( stream->cursor < stream->limit ) + result = *stream->cursor++; + + return result; + } + + + FT_BASE_DEF( FT_UShort ) + FT_Stream_GetUShort( FT_Stream stream ) + { + FT_Byte* p; + FT_Short result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 1 < stream->limit ) + result = FT_NEXT_USHORT( p ); + stream->cursor = p; + + return result; + } + + + FT_BASE_DEF( FT_UShort ) + FT_Stream_GetUShortLE( FT_Stream stream ) + { + FT_Byte* p; + FT_Short result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 1 < stream->limit ) + result = FT_NEXT_USHORT_LE( p ); + stream->cursor = p; + + return result; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_GetUOffset( FT_Stream stream ) + { + FT_Byte* p; + FT_Long result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 2 < stream->limit ) + result = FT_NEXT_UOFF3( p ); + stream->cursor = p; + return result; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_GetULong( FT_Stream stream ) + { + FT_Byte* p; + FT_Long result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 3 < stream->limit ) + result = FT_NEXT_ULONG( p ); + stream->cursor = p; + return result; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_GetULongLE( FT_Stream stream ) + { + FT_Byte* p; + FT_Long result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 3 < stream->limit ) + result = FT_NEXT_ULONG_LE( p ); + stream->cursor = p; + return result; + } + + + FT_BASE_DEF( FT_Char ) + FT_Stream_ReadChar( FT_Stream stream, + FT_Error* error ) + { + FT_Byte result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, &result, 1L ) != 1L ) + goto Fail; + } + else + { + if ( stream->pos < stream->size ) + result = stream->base[stream->pos]; + else + goto Fail; + } + stream->pos++; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadChar:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_UShort ) + FT_Stream_ReadUShort( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[2]; + FT_Byte* p = 0; + FT_Short result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 1 < stream->size ) + { + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, reads, 2L ) != 2L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_USHORT( p ); + } + else + goto Fail; + + stream->pos += 2; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadUShort:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_UShort ) + FT_Stream_ReadUShortLE( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[2]; + FT_Byte* p = 0; + FT_Short result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 1 < stream->size ) + { + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, reads, 2L ) != 2L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_USHORT_LE( p ); + } + else + goto Fail; + + stream->pos += 2; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadUShortLE:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_ReadUOffset( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[3]; + FT_Byte* p = 0; + FT_Long result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 2 < stream->size ) + { + if ( stream->read ) + { + if (stream->read( stream, stream->pos, reads, 3L ) != 3L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_UOFF3( p ); + } + else + goto Fail; + + stream->pos += 3; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadUOffset:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_ReadULong( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[4]; + FT_Byte* p = 0; + FT_Long result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 3 < stream->size ) + { + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, reads, 4L ) != 4L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_ULONG( p ); + } + else + goto Fail; + + stream->pos += 4; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadULong:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_ULong ) + FT_Stream_ReadULongLE( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[4]; + FT_Byte* p = 0; + FT_Long result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 3 < stream->size ) + { + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, reads, 4L ) != 4L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_ULONG_LE( p ); + } + else + goto Fail; + + stream->pos += 4; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadULongLE:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_ReadFields( FT_Stream stream, + const FT_Frame_Field* fields, + void* structure ) + { + FT_Error error; + FT_Bool frame_accessed = 0; + FT_Byte* cursor; + + if ( !fields || !stream ) + return FT_Err_Invalid_Argument; + + cursor = stream->cursor; + + error = FT_Err_Ok; + do + { + FT_ULong value; + FT_Int sign_shift; + FT_Byte* p; + + + switch ( fields->value ) + { + case ft_frame_start: /* access a new frame */ + error = FT_Stream_EnterFrame( stream, fields->offset ); + if ( error ) + goto Exit; + + frame_accessed = 1; + cursor = stream->cursor; + fields++; + continue; /* loop! */ + + case ft_frame_bytes: /* read a byte sequence */ + case ft_frame_skip: /* skip some bytes */ + { + FT_UInt len = fields->size; + + + if ( cursor + len > stream->limit ) + { + error = FT_Err_Invalid_Stream_Operation; + goto Exit; + } + + if ( fields->value == ft_frame_bytes ) + { + p = (FT_Byte*)structure + fields->offset; + FT_MEM_COPY( p, cursor, len ); + } + cursor += len; + fields++; + continue; + } + + case ft_frame_byte: + case ft_frame_schar: /* read a single byte */ + value = FT_NEXT_BYTE(cursor); + sign_shift = 24; + break; + + case ft_frame_short_be: + case ft_frame_ushort_be: /* read a 2-byte big-endian short */ + value = FT_NEXT_USHORT(cursor); + sign_shift = 16; + break; + + case ft_frame_short_le: + case ft_frame_ushort_le: /* read a 2-byte little-endian short */ + value = FT_NEXT_USHORT_LE(cursor); + sign_shift = 16; + break; + + case ft_frame_long_be: + case ft_frame_ulong_be: /* read a 4-byte big-endian long */ + value = FT_NEXT_ULONG(cursor); + sign_shift = 0; + break; + + case ft_frame_long_le: + case ft_frame_ulong_le: /* read a 4-byte little-endian long */ + value = FT_NEXT_ULONG_LE(cursor); + sign_shift = 0; + break; + + case ft_frame_off3_be: + case ft_frame_uoff3_be: /* read a 3-byte big-endian long */ + value = FT_NEXT_UOFF3(cursor); + sign_shift = 8; + break; + + case ft_frame_off3_le: + case ft_frame_uoff3_le: /* read a 3-byte little-endian long */ + value = FT_NEXT_UOFF3_LE(cursor); + sign_shift = 8; + break; + + default: + /* otherwise, exit the loop */ + stream->cursor = cursor; + goto Exit; + } + + /* now, compute the signed value is necessary */ + if ( fields->value & FT_FRAME_OP_SIGNED ) + value = (FT_ULong)( (FT_Int32)( value << sign_shift ) >> sign_shift ); + + /* finally, store the value in the object */ + + p = (FT_Byte*)structure + fields->offset; + switch ( fields->size ) + { + case (8 / FT_CHAR_BIT): + *(FT_Byte*)p = (FT_Byte)value; + break; + + case (16 / FT_CHAR_BIT): + *(FT_UShort*)p = (FT_UShort)value; + break; + + case (32 / FT_CHAR_BIT): + *(FT_UInt32*)p = (FT_UInt32)value; + break; + + default: /* for 64-bit systems */ + *(FT_ULong*)p = (FT_ULong)value; + } + + /* go to next field */ + fields++; + } + while ( 1 ); + + Exit: + /* close the frame if it was opened by this read */ + if ( frame_accessed ) + FT_Stream_ExitFrame( stream ); + + return error; + } + + +/* END */ diff --git a/src/base/ftstroke.c b/src/base/ftstroke.c new file mode 100644 index 0000000..5399efe --- /dev/null +++ b/src/base/ftstroke.c @@ -0,0 +1,2419 @@ +/***************************************************************************/ +/* */ +/* ftstroke.c */ +/* */ +/* FreeType path stroker (body). */ +/* */ +/* Copyright 2002-2006, 2008-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_STROKER_H +#include FT_TRIGONOMETRY_H +#include FT_OUTLINE_H +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_StrokerBorder ) + FT_Outline_GetInsideBorder( FT_Outline* outline ) + { + FT_Orientation o = FT_Outline_Get_Orientation( outline ); + + + return o == FT_ORIENTATION_TRUETYPE ? FT_STROKER_BORDER_RIGHT + : FT_STROKER_BORDER_LEFT; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_StrokerBorder ) + FT_Outline_GetOutsideBorder( FT_Outline* outline ) + { + FT_Orientation o = FT_Outline_Get_Orientation( outline ); + + + return o == FT_ORIENTATION_TRUETYPE ? FT_STROKER_BORDER_LEFT + : FT_STROKER_BORDER_RIGHT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BEZIER COMPUTATIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define FT_SMALL_CONIC_THRESHOLD ( FT_ANGLE_PI / 6 ) +#define FT_SMALL_CUBIC_THRESHOLD ( FT_ANGLE_PI / 8 ) + +#define FT_EPSILON 2 + +#define FT_IS_SMALL( x ) ( (x) > -FT_EPSILON && (x) < FT_EPSILON ) + + + static FT_Pos + ft_pos_abs( FT_Pos x ) + { + return x >= 0 ? x : -x; + } + + + static void + ft_conic_split( FT_Vector* base ) + { + FT_Pos a, b; + + + base[4].x = base[2].x; + b = base[1].x; + a = base[3].x = ( base[2].x + b ) / 2; + b = base[1].x = ( base[0].x + b ) / 2; + base[2].x = ( a + b ) / 2; + + base[4].y = base[2].y; + b = base[1].y; + a = base[3].y = ( base[2].y + b ) / 2; + b = base[1].y = ( base[0].y + b ) / 2; + base[2].y = ( a + b ) / 2; + } + + + static FT_Bool + ft_conic_is_small_enough( FT_Vector* base, + FT_Angle *angle_in, + FT_Angle *angle_out ) + { + FT_Vector d1, d2; + FT_Angle theta; + FT_Int close1, close2; + + + d1.x = base[1].x - base[2].x; + d1.y = base[1].y - base[2].y; + d2.x = base[0].x - base[1].x; + d2.y = base[0].y - base[1].y; + + close1 = FT_IS_SMALL( d1.x ) && FT_IS_SMALL( d1.y ); + close2 = FT_IS_SMALL( d2.x ) && FT_IS_SMALL( d2.y ); + + if ( close1 ) + { + if ( close2 ) + { + /* basically a point; */ + /* do nothing to retain original direction */ + } + else + { + *angle_in = + *angle_out = FT_Atan2( d2.x, d2.y ); + } + } + else /* !close1 */ + { + if ( close2 ) + { + *angle_in = + *angle_out = FT_Atan2( d1.x, d1.y ); + } + else + { + *angle_in = FT_Atan2( d1.x, d1.y ); + *angle_out = FT_Atan2( d2.x, d2.y ); + } + } + + theta = ft_pos_abs( FT_Angle_Diff( *angle_in, *angle_out ) ); + + return FT_BOOL( theta < FT_SMALL_CONIC_THRESHOLD ); + } + + + static void + ft_cubic_split( FT_Vector* base ) + { + FT_Pos a, b, c, d; + + + base[6].x = base[3].x; + c = base[1].x; + d = base[2].x; + base[1].x = a = ( base[0].x + c ) / 2; + base[5].x = b = ( base[3].x + d ) / 2; + c = ( c + d ) / 2; + base[2].x = a = ( a + c ) / 2; + base[4].x = b = ( b + c ) / 2; + base[3].x = ( a + b ) / 2; + + base[6].y = base[3].y; + c = base[1].y; + d = base[2].y; + base[1].y = a = ( base[0].y + c ) / 2; + base[5].y = b = ( base[3].y + d ) / 2; + c = ( c + d ) / 2; + base[2].y = a = ( a + c ) / 2; + base[4].y = b = ( b + c ) / 2; + base[3].y = ( a + b ) / 2; + } + + + /* Return the average of `angle1' and `angle2'. */ + /* This gives correct result even if `angle1' and `angle2' */ + /* have opposite signs. */ + static FT_Angle + ft_angle_mean( FT_Angle angle1, + FT_Angle angle2 ) + { + return angle1 + FT_Angle_Diff( angle1, angle2 ) / 2; + } + + + static FT_Bool + ft_cubic_is_small_enough( FT_Vector* base, + FT_Angle *angle_in, + FT_Angle *angle_mid, + FT_Angle *angle_out ) + { + FT_Vector d1, d2, d3; + FT_Angle theta1, theta2; + FT_Int close1, close2, close3; + + + d1.x = base[2].x - base[3].x; + d1.y = base[2].y - base[3].y; + d2.x = base[1].x - base[2].x; + d2.y = base[1].y - base[2].y; + d3.x = base[0].x - base[1].x; + d3.y = base[0].y - base[1].y; + + close1 = FT_IS_SMALL( d1.x ) && FT_IS_SMALL( d1.y ); + close2 = FT_IS_SMALL( d2.x ) && FT_IS_SMALL( d2.y ); + close3 = FT_IS_SMALL( d3.x ) && FT_IS_SMALL( d3.y ); + + if ( close1 ) + { + if ( close2 ) + { + if ( close3 ) + { + /* basically a point; */ + /* do nothing to retain original direction */ + } + else /* !close3 */ + { + *angle_in = + *angle_mid = + *angle_out = FT_Atan2( d3.x, d3.y ); + } + } + else /* !close2 */ + { + if ( close3 ) + { + *angle_in = + *angle_mid = + *angle_out = FT_Atan2( d2.x, d2.y ); + } + else /* !close3 */ + { + *angle_in = + *angle_mid = FT_Atan2( d2.x, d2.y ); + *angle_out = FT_Atan2( d3.x, d3.y ); + } + } + } + else /* !close1 */ + { + if ( close2 ) + { + if ( close3 ) + { + *angle_in = + *angle_mid = + *angle_out = FT_Atan2( d1.x, d1.y ); + } + else /* !close3 */ + { + *angle_in = FT_Atan2( d1.x, d1.y ); + *angle_out = FT_Atan2( d3.x, d3.y ); + *angle_mid = ft_angle_mean( *angle_in, *angle_out ); + } + } + else /* !close2 */ + { + if ( close3 ) + { + *angle_in = FT_Atan2( d1.x, d1.y ); + *angle_mid = + *angle_out = FT_Atan2( d2.x, d2.y ); + } + else /* !close3 */ + { + *angle_in = FT_Atan2( d1.x, d1.y ); + *angle_mid = FT_Atan2( d2.x, d2.y ); + *angle_out = FT_Atan2( d3.x, d3.y ); + } + } + } + + theta1 = ft_pos_abs( FT_Angle_Diff( *angle_in, *angle_mid ) ); + theta2 = ft_pos_abs( FT_Angle_Diff( *angle_mid, *angle_out ) ); + + return FT_BOOL( theta1 < FT_SMALL_CUBIC_THRESHOLD && + theta2 < FT_SMALL_CUBIC_THRESHOLD ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** STROKE BORDERS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef enum FT_StrokeTags_ + { + FT_STROKE_TAG_ON = 1, /* on-curve point */ + FT_STROKE_TAG_CUBIC = 2, /* cubic off-point */ + FT_STROKE_TAG_BEGIN = 4, /* sub-path start */ + FT_STROKE_TAG_END = 8 /* sub-path end */ + + } FT_StrokeTags; + +#define FT_STROKE_TAG_BEGIN_END ( FT_STROKE_TAG_BEGIN | FT_STROKE_TAG_END ) + + typedef struct FT_StrokeBorderRec_ + { + FT_UInt num_points; + FT_UInt max_points; + FT_Vector* points; + FT_Byte* tags; + FT_Bool movable; /* TRUE for ends of lineto borders */ + FT_Int start; /* index of current sub-path start point */ + FT_Memory memory; + FT_Bool valid; + + } FT_StrokeBorderRec, *FT_StrokeBorder; + + + static FT_Error + ft_stroke_border_grow( FT_StrokeBorder border, + FT_UInt new_points ) + { + FT_UInt old_max = border->max_points; + FT_UInt new_max = border->num_points + new_points; + FT_Error error = FT_Err_Ok; + + + if ( new_max > old_max ) + { + FT_UInt cur_max = old_max; + FT_Memory memory = border->memory; + + + while ( cur_max < new_max ) + cur_max += ( cur_max >> 1 ) + 16; + + if ( FT_RENEW_ARRAY( border->points, old_max, cur_max ) || + FT_RENEW_ARRAY( border->tags, old_max, cur_max ) ) + goto Exit; + + border->max_points = cur_max; + } + + Exit: + return error; + } + + + static void + ft_stroke_border_close( FT_StrokeBorder border, + FT_Bool reverse ) + { + FT_UInt start = border->start; + FT_UInt count = border->num_points; + + + FT_ASSERT( border->start >= 0 ); + + /* don't record empty paths! */ + if ( count <= start + 1U ) + border->num_points = start; + else + { + /* copy the last point to the start of this sub-path, since */ + /* it contains the `adjusted' starting coordinates */ + border->num_points = --count; + border->points[start] = border->points[count]; + + if ( reverse ) + { + /* reverse the points */ + { + FT_Vector* vec1 = border->points + start + 1; + FT_Vector* vec2 = border->points + count - 1; + + + for ( ; vec1 < vec2; vec1++, vec2-- ) + { + FT_Vector tmp; + + + tmp = *vec1; + *vec1 = *vec2; + *vec2 = tmp; + } + } + + /* then the tags */ + { + FT_Byte* tag1 = border->tags + start + 1; + FT_Byte* tag2 = border->tags + count - 1; + + + for ( ; tag1 < tag2; tag1++, tag2-- ) + { + FT_Byte tmp; + + + tmp = *tag1; + *tag1 = *tag2; + *tag2 = tmp; + } + } + } + + border->tags[start ] |= FT_STROKE_TAG_BEGIN; + border->tags[count - 1] |= FT_STROKE_TAG_END; + } + + border->start = -1; + border->movable = FALSE; + } + + + static FT_Error + ft_stroke_border_lineto( FT_StrokeBorder border, + FT_Vector* to, + FT_Bool movable ) + { + FT_Error error = FT_Err_Ok; + + + FT_ASSERT( border->start >= 0 ); + + if ( border->movable ) + { + /* move last point */ + border->points[border->num_points - 1] = *to; + } + else + { + /* don't add zero-length lineto */ + if ( border->num_points > 0 && + FT_IS_SMALL( border->points[border->num_points - 1].x - to->x ) && + FT_IS_SMALL( border->points[border->num_points - 1].y - to->y ) ) + return error; + + /* add one point */ + error = ft_stroke_border_grow( border, 1 ); + if ( !error ) + { + FT_Vector* vec = border->points + border->num_points; + FT_Byte* tag = border->tags + border->num_points; + + + vec[0] = *to; + tag[0] = FT_STROKE_TAG_ON; + + border->num_points += 1; + } + } + border->movable = movable; + return error; + } + + + static FT_Error + ft_stroke_border_conicto( FT_StrokeBorder border, + FT_Vector* control, + FT_Vector* to ) + { + FT_Error error; + + + FT_ASSERT( border->start >= 0 ); + + error = ft_stroke_border_grow( border, 2 ); + if ( !error ) + { + FT_Vector* vec = border->points + border->num_points; + FT_Byte* tag = border->tags + border->num_points; + + + vec[0] = *control; + vec[1] = *to; + + tag[0] = 0; + tag[1] = FT_STROKE_TAG_ON; + + border->num_points += 2; + } + + border->movable = FALSE; + + return error; + } + + + static FT_Error + ft_stroke_border_cubicto( FT_StrokeBorder border, + FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to ) + { + FT_Error error; + + + FT_ASSERT( border->start >= 0 ); + + error = ft_stroke_border_grow( border, 3 ); + if ( !error ) + { + FT_Vector* vec = border->points + border->num_points; + FT_Byte* tag = border->tags + border->num_points; + + + vec[0] = *control1; + vec[1] = *control2; + vec[2] = *to; + + tag[0] = FT_STROKE_TAG_CUBIC; + tag[1] = FT_STROKE_TAG_CUBIC; + tag[2] = FT_STROKE_TAG_ON; + + border->num_points += 3; + } + + border->movable = FALSE; + + return error; + } + + +#define FT_ARC_CUBIC_ANGLE ( FT_ANGLE_PI / 2 ) + + + static FT_Error + ft_stroke_border_arcto( FT_StrokeBorder border, + FT_Vector* center, + FT_Fixed radius, + FT_Angle angle_start, + FT_Angle angle_diff ) + { + FT_Angle total, angle, step, rotate, next, theta; + FT_Vector a, b, a2, b2; + FT_Fixed length; + FT_Error error = FT_Err_Ok; + + + /* compute start point */ + FT_Vector_From_Polar( &a, radius, angle_start ); + a.x += center->x; + a.y += center->y; + + total = angle_diff; + angle = angle_start; + rotate = ( angle_diff >= 0 ) ? FT_ANGLE_PI2 : -FT_ANGLE_PI2; + + while ( total != 0 ) + { + step = total; + if ( step > FT_ARC_CUBIC_ANGLE ) + step = FT_ARC_CUBIC_ANGLE; + + else if ( step < -FT_ARC_CUBIC_ANGLE ) + step = -FT_ARC_CUBIC_ANGLE; + + next = angle + step; + theta = step; + if ( theta < 0 ) + theta = -theta; + + theta >>= 1; + + /* compute end point */ + FT_Vector_From_Polar( &b, radius, next ); + b.x += center->x; + b.y += center->y; + + /* compute first and second control points */ + length = FT_MulDiv( radius, FT_Sin( theta ) * 4, + ( 0x10000L + FT_Cos( theta ) ) * 3 ); + + FT_Vector_From_Polar( &a2, length, angle + rotate ); + a2.x += a.x; + a2.y += a.y; + + FT_Vector_From_Polar( &b2, length, next - rotate ); + b2.x += b.x; + b2.y += b.y; + + /* add cubic arc */ + error = ft_stroke_border_cubicto( border, &a2, &b2, &b ); + if ( error ) + break; + + /* process the rest of the arc ?? */ + a = b; + total -= step; + angle = next; + } + + return error; + } + + + static FT_Error + ft_stroke_border_moveto( FT_StrokeBorder border, + FT_Vector* to ) + { + /* close current open path if any ? */ + if ( border->start >= 0 ) + ft_stroke_border_close( border, FALSE ); + + border->start = border->num_points; + border->movable = FALSE; + + return ft_stroke_border_lineto( border, to, FALSE ); + } + + + static void + ft_stroke_border_init( FT_StrokeBorder border, + FT_Memory memory ) + { + border->memory = memory; + border->points = NULL; + border->tags = NULL; + + border->num_points = 0; + border->max_points = 0; + border->start = -1; + border->valid = FALSE; + } + + + static void + ft_stroke_border_reset( FT_StrokeBorder border ) + { + border->num_points = 0; + border->start = -1; + border->valid = FALSE; + } + + + static void + ft_stroke_border_done( FT_StrokeBorder border ) + { + FT_Memory memory = border->memory; + + + FT_FREE( border->points ); + FT_FREE( border->tags ); + + border->num_points = 0; + border->max_points = 0; + border->start = -1; + border->valid = FALSE; + } + + + static FT_Error + ft_stroke_border_get_counts( FT_StrokeBorder border, + FT_UInt *anum_points, + FT_UInt *anum_contours ) + { + FT_Error error = FT_Err_Ok; + FT_UInt num_points = 0; + FT_UInt num_contours = 0; + + FT_UInt count = border->num_points; + FT_Vector* point = border->points; + FT_Byte* tags = border->tags; + FT_Int in_contour = 0; + + + for ( ; count > 0; count--, num_points++, point++, tags++ ) + { + if ( tags[0] & FT_STROKE_TAG_BEGIN ) + { + if ( in_contour != 0 ) + goto Fail; + + in_contour = 1; + } + else if ( in_contour == 0 ) + goto Fail; + + if ( tags[0] & FT_STROKE_TAG_END ) + { + in_contour = 0; + num_contours++; + } + } + + if ( in_contour != 0 ) + goto Fail; + + border->valid = TRUE; + + Exit: + *anum_points = num_points; + *anum_contours = num_contours; + return error; + + Fail: + num_points = 0; + num_contours = 0; + goto Exit; + } + + + static void + ft_stroke_border_export( FT_StrokeBorder border, + FT_Outline* outline ) + { + /* copy point locations */ + FT_ARRAY_COPY( outline->points + outline->n_points, + border->points, + border->num_points ); + + /* copy tags */ + { + FT_UInt count = border->num_points; + FT_Byte* read = border->tags; + FT_Byte* write = (FT_Byte*)outline->tags + outline->n_points; + + + for ( ; count > 0; count--, read++, write++ ) + { + if ( *read & FT_STROKE_TAG_ON ) + *write = FT_CURVE_TAG_ON; + else if ( *read & FT_STROKE_TAG_CUBIC ) + *write = FT_CURVE_TAG_CUBIC; + else + *write = FT_CURVE_TAG_CONIC; + } + } + + /* copy contours */ + { + FT_UInt count = border->num_points; + FT_Byte* tags = border->tags; + FT_Short* write = outline->contours + outline->n_contours; + FT_Short idx = (FT_Short)outline->n_points; + + + for ( ; count > 0; count--, tags++, idx++ ) + { + if ( *tags & FT_STROKE_TAG_END ) + { + *write++ = idx; + outline->n_contours++; + } + } + } + + outline->n_points = (short)( outline->n_points + border->num_points ); + + FT_ASSERT( FT_Outline_Check( outline ) == 0 ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** STROKER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define FT_SIDE_TO_ROTATE( s ) ( FT_ANGLE_PI2 - (s) * FT_ANGLE_PI ) + + typedef struct FT_StrokerRec_ + { + FT_Angle angle_in; /* direction into curr join */ + FT_Angle angle_out; /* direction out of join */ + FT_Vector center; /* current position */ + FT_Fixed line_length; /* length of last lineto */ + FT_Bool first_point; /* is this the start? */ + FT_Bool subpath_open; /* is the subpath open? */ + FT_Angle subpath_angle; /* subpath start direction */ + FT_Vector subpath_start; /* subpath start position */ + FT_Fixed subpath_line_length; /* subpath start lineto len */ + FT_Bool handle_wide_strokes; /* use wide strokes logic? */ + + FT_Stroker_LineCap line_cap; + FT_Stroker_LineJoin line_join; + FT_Stroker_LineJoin line_join_saved; + FT_Fixed miter_limit; + FT_Fixed radius; + + FT_StrokeBorderRec borders[2]; + FT_Library library; + + } FT_StrokerRec; + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_New( FT_Library library, + FT_Stroker *astroker ) + { + FT_Error error; + FT_Memory memory; + FT_Stroker stroker = NULL; + + + if ( !library ) + return FT_Err_Invalid_Argument; + + memory = library->memory; + + if ( !FT_NEW( stroker ) ) + { + stroker->library = library; + + ft_stroke_border_init( &stroker->borders[0], memory ); + ft_stroke_border_init( &stroker->borders[1], memory ); + } + + *astroker = stroker; + + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( void ) + FT_Stroker_Set( FT_Stroker stroker, + FT_Fixed radius, + FT_Stroker_LineCap line_cap, + FT_Stroker_LineJoin line_join, + FT_Fixed miter_limit ) + { + stroker->radius = radius; + stroker->line_cap = line_cap; + stroker->line_join = line_join; + stroker->miter_limit = miter_limit; + + /* ensure miter limit has sensible value */ + if ( stroker->miter_limit < 0x10000 ) + stroker->miter_limit = 0x10000; + + /* save line join style: */ + /* line join style can be temporarily changed when stroking curves */ + stroker->line_join_saved = line_join; + + FT_Stroker_Rewind( stroker ); + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( void ) + FT_Stroker_Rewind( FT_Stroker stroker ) + { + if ( stroker ) + { + ft_stroke_border_reset( &stroker->borders[0] ); + ft_stroke_border_reset( &stroker->borders[1] ); + } + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( void ) + FT_Stroker_Done( FT_Stroker stroker ) + { + if ( stroker ) + { + FT_Memory memory = stroker->library->memory; + + + ft_stroke_border_done( &stroker->borders[0] ); + ft_stroke_border_done( &stroker->borders[1] ); + + stroker->library = NULL; + FT_FREE( stroker ); + } + } + + + /* create a circular arc at a corner or cap */ + static FT_Error + ft_stroker_arcto( FT_Stroker stroker, + FT_Int side ) + { + FT_Angle total, rotate; + FT_Fixed radius = stroker->radius; + FT_Error error = FT_Err_Ok; + FT_StrokeBorder border = stroker->borders + side; + + + rotate = FT_SIDE_TO_ROTATE( side ); + + total = FT_Angle_Diff( stroker->angle_in, stroker->angle_out ); + if ( total == FT_ANGLE_PI ) + total = -rotate * 2; + + error = ft_stroke_border_arcto( border, + &stroker->center, + radius, + stroker->angle_in + rotate, + total ); + border->movable = FALSE; + return error; + } + + + /* add a cap at the end of an opened path */ + static FT_Error + ft_stroker_cap( FT_Stroker stroker, + FT_Angle angle, + FT_Int side ) + { + FT_Error error = FT_Err_Ok; + + + if ( stroker->line_cap == FT_STROKER_LINECAP_ROUND ) + { + /* add a round cap */ + stroker->angle_in = angle; + stroker->angle_out = angle + FT_ANGLE_PI; + + error = ft_stroker_arcto( stroker, side ); + } + else if ( stroker->line_cap == FT_STROKER_LINECAP_SQUARE ) + { + /* add a square cap */ + FT_Vector delta, delta2; + FT_Angle rotate = FT_SIDE_TO_ROTATE( side ); + FT_Fixed radius = stroker->radius; + FT_StrokeBorder border = stroker->borders + side; + + + FT_Vector_From_Polar( &delta2, radius, angle + rotate ); + FT_Vector_From_Polar( &delta, radius, angle ); + + delta.x += stroker->center.x + delta2.x; + delta.y += stroker->center.y + delta2.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + FT_Vector_From_Polar( &delta2, radius, angle - rotate ); + FT_Vector_From_Polar( &delta, radius, angle ); + + delta.x += delta2.x + stroker->center.x; + delta.y += delta2.y + stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + else if ( stroker->line_cap == FT_STROKER_LINECAP_BUTT ) + { + /* add a butt ending */ + FT_Vector delta; + FT_Angle rotate = FT_SIDE_TO_ROTATE( side ); + FT_Fixed radius = stroker->radius; + FT_StrokeBorder border = stroker->borders + side; + + + FT_Vector_From_Polar( &delta, radius, angle + rotate ); + + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + FT_Vector_From_Polar( &delta, radius, angle - rotate ); + + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + + Exit: + return error; + } + + + /* process an inside corner, i.e. compute intersection */ + static FT_Error + ft_stroker_inside( FT_Stroker stroker, + FT_Int side, + FT_Fixed line_length ) + { + FT_StrokeBorder border = stroker->borders + side; + FT_Angle phi, theta, rotate; + FT_Fixed length, thcos; + FT_Vector delta; + FT_Error error = FT_Err_Ok; + FT_Bool intersect; /* use intersection of lines? */ + + + rotate = FT_SIDE_TO_ROTATE( side ); + + theta = FT_Angle_Diff( stroker->angle_in, stroker->angle_out ) / 2; + + /* Only intersect borders if between two lineto's and both */ + /* lines are long enough (line_length is zero for curves). */ + if ( !border->movable || line_length == 0 ) + intersect = FALSE; + else + { + /* compute minimum required length of lines */ + FT_Fixed min_length = ft_pos_abs( FT_MulFix( stroker->radius, + FT_Tan( theta ) ) ); + + + intersect = FT_BOOL( stroker->line_length >= min_length && + line_length >= min_length ); + } + + if ( !intersect ) + { + FT_Vector_From_Polar( &delta, stroker->radius, + stroker->angle_out + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + border->movable = FALSE; + } + else + { + /* compute median angle */ + phi = stroker->angle_in + theta; + + thcos = FT_Cos( theta ); + + length = FT_DivFix( stroker->radius, thcos ); + + FT_Vector_From_Polar( &delta, length, phi + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + } + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + + return error; + } + + + /* process an outside corner, i.e. compute bevel/miter/round */ + static FT_Error + ft_stroker_outside( FT_Stroker stroker, + FT_Int side, + FT_Fixed line_length ) + { + FT_StrokeBorder border = stroker->borders + side; + FT_Error error; + FT_Angle rotate; + + + if ( stroker->line_join == FT_STROKER_LINEJOIN_ROUND ) + error = ft_stroker_arcto( stroker, side ); + else + { + /* this is a mitered (pointed) or beveled (truncated) corner */ + FT_Fixed sigma = 0, radius = stroker->radius; + FT_Angle theta = 0, phi = 0; + FT_Fixed thcos = 0; + FT_Bool bevel, fixed_bevel; + + + rotate = FT_SIDE_TO_ROTATE( side ); + + bevel = + FT_BOOL( stroker->line_join == FT_STROKER_LINEJOIN_BEVEL ); + + fixed_bevel = + FT_BOOL( stroker->line_join != FT_STROKER_LINEJOIN_MITER_VARIABLE ); + + if ( !bevel ) + { + theta = FT_Angle_Diff( stroker->angle_in, stroker->angle_out ); + + if ( theta == FT_ANGLE_PI ) + { + theta = rotate; + phi = stroker->angle_in; + } + else + { + theta /= 2; + phi = stroker->angle_in + theta + rotate; + } + + thcos = FT_Cos( theta ); + sigma = FT_MulFix( stroker->miter_limit, thcos ); + + /* is miter limit exceeded? */ + if ( sigma < 0x10000L ) + { + /* don't create variable bevels for very small deviations; */ + /* FT_Sin(x) = 0 for x <= 57 */ + if ( fixed_bevel || ft_pos_abs( theta ) > 57 ) + bevel = TRUE; + } + } + + if ( bevel ) /* this is a bevel (broken angle) */ + { + if ( fixed_bevel ) + { + /* the outer corners are simply joined together */ + FT_Vector delta; + + + /* add bevel */ + FT_Vector_From_Polar( &delta, + radius, + stroker->angle_out + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + border->movable = FALSE; + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + else /* variable bevel */ + { + /* the miter is truncated */ + FT_Vector middle, delta; + FT_Fixed length; + + + /* compute middle point */ + FT_Vector_From_Polar( &middle, + FT_MulFix( radius, stroker->miter_limit ), + phi ); + middle.x += stroker->center.x; + middle.y += stroker->center.y; + + /* compute first angle point */ + length = FT_MulFix( radius, + FT_DivFix( 0x10000L - sigma, + ft_pos_abs( FT_Sin( theta ) ) ) ); + + FT_Vector_From_Polar( &delta, length, phi + rotate ); + delta.x += middle.x; + delta.y += middle.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + /* compute second angle point */ + FT_Vector_From_Polar( &delta, length, phi - rotate ); + delta.x += middle.x; + delta.y += middle.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + /* finally, add an end point; only needed if not lineto */ + /* (line_length is zero for curves) */ + if ( line_length == 0 ) + { + FT_Vector_From_Polar( &delta, + radius, + stroker->angle_out + rotate ); + + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + } + } + else /* this is a miter (intersection) */ + { + FT_Fixed length; + FT_Vector delta; + + + length = FT_DivFix( stroker->radius, thcos ); + + FT_Vector_From_Polar( &delta, length, phi ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + + /* now add an end point; only needed if not lineto */ + /* (line_length is zero for curves) */ + if ( line_length == 0 ) + { + FT_Vector_From_Polar( &delta, + stroker->radius, + stroker->angle_out + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, FALSE ); + } + } + } + + Exit: + return error; + } + + + static FT_Error + ft_stroker_process_corner( FT_Stroker stroker, + FT_Fixed line_length ) + { + FT_Error error = FT_Err_Ok; + FT_Angle turn; + FT_Int inside_side; + + + turn = FT_Angle_Diff( stroker->angle_in, stroker->angle_out ); + + /* no specific corner processing is required if the turn is 0 */ + if ( turn == 0 ) + goto Exit; + + /* when we turn to the right, the inside side is 0 */ + inside_side = 0; + + /* otherwise, the inside side is 1 */ + if ( turn < 0 ) + inside_side = 1; + + /* process the inside side */ + error = ft_stroker_inside( stroker, inside_side, line_length ); + if ( error ) + goto Exit; + + /* process the outside side */ + error = ft_stroker_outside( stroker, 1 - inside_side, line_length ); + + Exit: + return error; + } + + + /* add two points to the left and right borders corresponding to the */ + /* start of the subpath */ + static FT_Error + ft_stroker_subpath_start( FT_Stroker stroker, + FT_Angle start_angle, + FT_Fixed line_length ) + { + FT_Vector delta; + FT_Vector point; + FT_Error error; + FT_StrokeBorder border; + + + FT_Vector_From_Polar( &delta, stroker->radius, + start_angle + FT_ANGLE_PI2 ); + + point.x = stroker->center.x + delta.x; + point.y = stroker->center.y + delta.y; + + border = stroker->borders; + error = ft_stroke_border_moveto( border, &point ); + if ( error ) + goto Exit; + + point.x = stroker->center.x - delta.x; + point.y = stroker->center.y - delta.y; + + border++; + error = ft_stroke_border_moveto( border, &point ); + + /* save angle, position, and line length for last join */ + /* (line_length is zero for curves) */ + stroker->subpath_angle = start_angle; + stroker->first_point = FALSE; + stroker->subpath_line_length = line_length; + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_LineTo( FT_Stroker stroker, + FT_Vector* to ) + { + FT_Error error = FT_Err_Ok; + FT_StrokeBorder border; + FT_Vector delta; + FT_Angle angle; + FT_Int side; + FT_Fixed line_length; + + + delta.x = to->x - stroker->center.x; + delta.y = to->y - stroker->center.y; + + /* a zero-length lineto is a no-op; avoid creating a spurious corner */ + if ( delta.x == 0 && delta.y == 0 ) + goto Exit; + + /* compute length of line */ + line_length = FT_Vector_Length( &delta ); + + angle = FT_Atan2( delta.x, delta.y ); + FT_Vector_From_Polar( &delta, stroker->radius, angle + FT_ANGLE_PI2 ); + + /* process corner if necessary */ + if ( stroker->first_point ) + { + /* This is the first segment of a subpath. We need to */ + /* add a point to each border at their respective starting */ + /* point locations. */ + error = ft_stroker_subpath_start( stroker, angle, line_length ); + if ( error ) + goto Exit; + } + else + { + /* process the current corner */ + stroker->angle_out = angle; + error = ft_stroker_process_corner( stroker, line_length ); + if ( error ) + goto Exit; + } + + /* now add a line segment to both the `inside' and `outside' paths */ + for ( border = stroker->borders, side = 1; side >= 0; side--, border++ ) + { + FT_Vector point; + + + point.x = to->x + delta.x; + point.y = to->y + delta.y; + + /* the ends of lineto borders are movable */ + error = ft_stroke_border_lineto( border, &point, TRUE ); + if ( error ) + goto Exit; + + delta.x = -delta.x; + delta.y = -delta.y; + } + + stroker->angle_in = angle; + stroker->center = *to; + stroker->line_length = line_length; + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_ConicTo( FT_Stroker stroker, + FT_Vector* control, + FT_Vector* to ) + { + FT_Error error = FT_Err_Ok; + FT_Vector bez_stack[34]; + FT_Vector* arc; + FT_Vector* limit = bez_stack + 30; + FT_Bool first_arc = TRUE; + + + /* if all control points are coincident, this is a no-op; */ + /* avoid creating a spurious corner */ + if ( FT_IS_SMALL( stroker->center.x - control->x ) && + FT_IS_SMALL( stroker->center.y - control->y ) && + FT_IS_SMALL( control->x - to->x ) && + FT_IS_SMALL( control->y - to->y ) ) + { + stroker->center = *to; + goto Exit; + } + + arc = bez_stack; + arc[0] = *to; + arc[1] = *control; + arc[2] = stroker->center; + + while ( arc >= bez_stack ) + { + FT_Angle angle_in, angle_out; + + + /* initialize with current direction */ + angle_in = angle_out = stroker->angle_in; + + if ( arc < limit && + !ft_conic_is_small_enough( arc, &angle_in, &angle_out ) ) + { + if ( stroker->first_point ) + stroker->angle_in = angle_in; + + ft_conic_split( arc ); + arc += 2; + continue; + } + + if ( first_arc ) + { + first_arc = FALSE; + + /* process corner if necessary */ + if ( stroker->first_point ) + error = ft_stroker_subpath_start( stroker, angle_in, 0 ); + else + { + stroker->angle_out = angle_in; + error = ft_stroker_process_corner( stroker, 0 ); + } + } + else if ( ft_pos_abs( FT_Angle_Diff( stroker->angle_in, angle_in ) ) > + FT_SMALL_CONIC_THRESHOLD / 4 ) + { + /* if the deviation from one arc to the next is too great, */ + /* add a round corner */ + stroker->center = arc[2]; + stroker->angle_out = angle_in; + stroker->line_join = FT_STROKER_LINEJOIN_ROUND; + + error = ft_stroker_process_corner( stroker, 0 ); + + /* reinstate line join style */ + stroker->line_join = stroker->line_join_saved; + } + + if ( error ) + goto Exit; + + /* the arc's angle is small enough; we can add it directly to each */ + /* border */ + { + FT_Vector ctrl, end; + FT_Angle theta, phi, rotate, alpha0 = 0; + FT_Fixed length; + FT_StrokeBorder border; + FT_Int side; + + + theta = FT_Angle_Diff( angle_in, angle_out ) / 2; + phi = angle_in + theta; + length = FT_DivFix( stroker->radius, FT_Cos( theta ) ); + + /* compute direction of original arc */ + if ( stroker->handle_wide_strokes ) + alpha0 = FT_Atan2( arc[0].x - arc[2].x, arc[0].y - arc[2].y ); + + for ( border = stroker->borders, side = 0; + side <= 1; + side++, border++ ) + { + rotate = FT_SIDE_TO_ROTATE( side ); + + /* compute control point */ + FT_Vector_From_Polar( &ctrl, length, phi + rotate ); + ctrl.x += arc[1].x; + ctrl.y += arc[1].y; + + /* compute end point */ + FT_Vector_From_Polar( &end, stroker->radius, angle_out + rotate ); + end.x += arc[0].x; + end.y += arc[0].y; + + if ( stroker->handle_wide_strokes ) + { + FT_Vector start; + FT_Angle alpha1; + + + /* determine whether the border radius is greater than the */ + /* radius of curvature of the original arc */ + start = border->points[border->num_points - 1]; + + alpha1 = FT_Atan2( end.x - start.x, end.y - start.y ); + + /* is the direction of the border arc opposite to */ + /* that of the original arc? */ + if ( ft_pos_abs( FT_Angle_Diff( alpha0, alpha1 ) ) > + FT_ANGLE_PI / 2 ) + { + FT_Angle beta, gamma; + FT_Vector bvec, delta; + FT_Fixed blen, sinA, sinB, alen; + + + /* use the sine rule to find the intersection point */ + beta = FT_Atan2( arc[2].x - start.x, arc[2].y - start.y ); + gamma = FT_Atan2( arc[0].x - end.x, arc[0].y - end.y ); + + bvec.x = end.x - start.x; + bvec.y = end.y - start.y; + + blen = FT_Vector_Length( &bvec ); + + sinA = ft_pos_abs( FT_Sin( alpha1 - gamma ) ); + sinB = ft_pos_abs( FT_Sin( beta - gamma ) ); + + alen = FT_DivFix( FT_MulFix( blen, sinA ), sinB ); + + FT_Vector_From_Polar( &delta, alen, beta ); + delta.x += start.x; + delta.y += start.y; + + /* circumnavigate the negative sector backwards */ + border->movable = FALSE; + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + error = ft_stroke_border_lineto( border, &end, FALSE ); + if ( error ) + goto Exit; + error = ft_stroke_border_conicto( border, &ctrl, &start ); + if ( error ) + goto Exit; + /* and then move to the endpoint */ + error = ft_stroke_border_lineto( border, &end, FALSE ); + if ( error ) + goto Exit; + + continue; + } + + /* else fall through */ + } + + /* simply add an arc */ + error = ft_stroke_border_conicto( border, &ctrl, &end ); + if ( error ) + goto Exit; + } + } + + arc -= 2; + + stroker->angle_in = angle_out; + } + + stroker->center = *to; + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_CubicTo( FT_Stroker stroker, + FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to ) + { + FT_Error error = FT_Err_Ok; + FT_Vector bez_stack[37]; + FT_Vector* arc; + FT_Vector* limit = bez_stack + 32; + FT_Bool first_arc = TRUE; + + + /* if all control points are coincident, this is a no-op; */ + /* avoid creating a spurious corner */ + if ( FT_IS_SMALL( stroker->center.x - control1->x ) && + FT_IS_SMALL( stroker->center.y - control1->y ) && + FT_IS_SMALL( control1->x - control2->x ) && + FT_IS_SMALL( control1->y - control2->y ) && + FT_IS_SMALL( control2->x - to->x ) && + FT_IS_SMALL( control2->y - to->y ) ) + { + stroker->center = *to; + goto Exit; + } + + arc = bez_stack; + arc[0] = *to; + arc[1] = *control2; + arc[2] = *control1; + arc[3] = stroker->center; + + while ( arc >= bez_stack ) + { + FT_Angle angle_in, angle_mid, angle_out; + + + /* initialize with current direction */ + angle_in = angle_out = angle_mid = stroker->angle_in; + + if ( arc < limit && + !ft_cubic_is_small_enough( arc, &angle_in, + &angle_mid, &angle_out ) ) + { + if ( stroker->first_point ) + stroker->angle_in = angle_in; + + ft_cubic_split( arc ); + arc += 3; + continue; + } + + if ( first_arc ) + { + first_arc = FALSE; + + /* process corner if necessary */ + if ( stroker->first_point ) + error = ft_stroker_subpath_start( stroker, angle_in, 0 ); + else + { + stroker->angle_out = angle_in; + error = ft_stroker_process_corner( stroker, 0 ); + } + } + else if ( ft_pos_abs( FT_Angle_Diff( stroker->angle_in, angle_in ) ) > + FT_SMALL_CUBIC_THRESHOLD / 4 ) + { + /* if the deviation from one arc to the next is too great, */ + /* add a round corner */ + stroker->center = arc[3]; + stroker->angle_out = angle_in; + stroker->line_join = FT_STROKER_LINEJOIN_ROUND; + + error = ft_stroker_process_corner( stroker, 0 ); + + /* reinstate line join style */ + stroker->line_join = stroker->line_join_saved; + } + + if ( error ) + goto Exit; + + /* the arc's angle is small enough; we can add it directly to each */ + /* border */ + { + FT_Vector ctrl1, ctrl2, end; + FT_Angle theta1, phi1, theta2, phi2, rotate, alpha0 = 0; + FT_Fixed length1, length2; + FT_StrokeBorder border; + FT_Int side; + + + theta1 = FT_Angle_Diff( angle_in, angle_mid ) / 2; + theta2 = FT_Angle_Diff( angle_mid, angle_out ) / 2; + phi1 = ft_angle_mean( angle_in, angle_mid ); + phi2 = ft_angle_mean( angle_mid, angle_out ); + length1 = FT_DivFix( stroker->radius, FT_Cos( theta1 ) ); + length2 = FT_DivFix( stroker->radius, FT_Cos( theta2 ) ); + + /* compute direction of original arc */ + if ( stroker->handle_wide_strokes ) + alpha0 = FT_Atan2( arc[0].x - arc[3].x, arc[0].y - arc[3].y ); + + for ( border = stroker->borders, side = 0; + side <= 1; + side++, border++ ) + { + rotate = FT_SIDE_TO_ROTATE( side ); + + /* compute control points */ + FT_Vector_From_Polar( &ctrl1, length1, phi1 + rotate ); + ctrl1.x += arc[2].x; + ctrl1.y += arc[2].y; + + FT_Vector_From_Polar( &ctrl2, length2, phi2 + rotate ); + ctrl2.x += arc[1].x; + ctrl2.y += arc[1].y; + + /* compute end point */ + FT_Vector_From_Polar( &end, stroker->radius, angle_out + rotate ); + end.x += arc[0].x; + end.y += arc[0].y; + + if ( stroker->handle_wide_strokes ) + { + FT_Vector start; + FT_Angle alpha1; + + + /* determine whether the border radius is greater than the */ + /* radius of curvature of the original arc */ + start = border->points[border->num_points - 1]; + + alpha1 = FT_Atan2( end.x - start.x, end.y - start.y ); + + /* is the direction of the border arc opposite to */ + /* that of the original arc? */ + if ( ft_pos_abs( FT_Angle_Diff( alpha0, alpha1 ) ) > + FT_ANGLE_PI / 2 ) + { + FT_Angle beta, gamma; + FT_Vector bvec, delta; + FT_Fixed blen, sinA, sinB, alen; + + + /* use the sine rule to find the intersection point */ + beta = FT_Atan2( arc[3].x - start.x, arc[3].y - start.y ); + gamma = FT_Atan2( arc[0].x - end.x, arc[0].y - end.y ); + + bvec.x = end.x - start.x; + bvec.y = end.y - start.y; + + blen = FT_Vector_Length( &bvec ); + + sinA = ft_pos_abs( FT_Sin( alpha1 - gamma ) ); + sinB = ft_pos_abs( FT_Sin( beta - gamma ) ); + + alen = FT_DivFix( FT_MulFix( blen, sinA ), sinB ); + + FT_Vector_From_Polar( &delta, alen, beta ); + delta.x += start.x; + delta.y += start.y; + + /* circumnavigate the negative sector backwards */ + border->movable = FALSE; + error = ft_stroke_border_lineto( border, &delta, FALSE ); + if ( error ) + goto Exit; + error = ft_stroke_border_lineto( border, &end, FALSE ); + if ( error ) + goto Exit; + error = ft_stroke_border_cubicto( border, + &ctrl2, + &ctrl1, + &start ); + if ( error ) + goto Exit; + /* and then move to the endpoint */ + error = ft_stroke_border_lineto( border, &end, FALSE ); + if ( error ) + goto Exit; + + continue; + } + + /* else fall through */ + } + + /* simply add an arc */ + error = ft_stroke_border_cubicto( border, &ctrl1, &ctrl2, &end ); + if ( error ) + goto Exit; + } + } + + arc -= 3; + + stroker->angle_in = angle_out; + } + + stroker->center = *to; + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_BeginSubPath( FT_Stroker stroker, + FT_Vector* to, + FT_Bool open ) + { + /* We cannot process the first point, because there is not enough */ + /* information regarding its corner/cap. The latter will be processed */ + /* in the `FT_Stroker_EndSubPath' routine. */ + /* */ + stroker->first_point = TRUE; + stroker->center = *to; + stroker->subpath_open = open; + + /* Determine if we need to check whether the border radius is greater */ + /* than the radius of curvature of a curve, to handle this case */ + /* specially. This is only required if bevel joins or butt caps may */ + /* be created, because round & miter joins and round & square caps */ + /* cover the negative sector created with wide strokes. */ + stroker->handle_wide_strokes = + FT_BOOL( stroker->line_join != FT_STROKER_LINEJOIN_ROUND || + ( stroker->subpath_open && + stroker->line_cap == FT_STROKER_LINECAP_BUTT ) ); + + /* record the subpath start point for each border */ + stroker->subpath_start = *to; + + stroker->angle_in = 0; + + return FT_Err_Ok; + } + + + static FT_Error + ft_stroker_add_reverse_left( FT_Stroker stroker, + FT_Bool open ) + { + FT_StrokeBorder right = stroker->borders + 0; + FT_StrokeBorder left = stroker->borders + 1; + FT_Int new_points; + FT_Error error = FT_Err_Ok; + + + FT_ASSERT( left->start >= 0 ); + + new_points = left->num_points - left->start; + if ( new_points > 0 ) + { + error = ft_stroke_border_grow( right, (FT_UInt)new_points ); + if ( error ) + goto Exit; + + { + FT_Vector* dst_point = right->points + right->num_points; + FT_Byte* dst_tag = right->tags + right->num_points; + FT_Vector* src_point = left->points + left->num_points - 1; + FT_Byte* src_tag = left->tags + left->num_points - 1; + + + while ( src_point >= left->points + left->start ) + { + *dst_point = *src_point; + *dst_tag = *src_tag; + + if ( open ) + dst_tag[0] &= ~FT_STROKE_TAG_BEGIN_END; + else + { + FT_Byte ttag = + (FT_Byte)( dst_tag[0] & FT_STROKE_TAG_BEGIN_END ); + + + /* switch begin/end tags if necessary */ + if ( ttag == FT_STROKE_TAG_BEGIN || + ttag == FT_STROKE_TAG_END ) + dst_tag[0] ^= FT_STROKE_TAG_BEGIN_END; + } + + src_point--; + src_tag--; + dst_point++; + dst_tag++; + } + } + + left->num_points = left->start; + right->num_points += new_points; + + right->movable = FALSE; + left->movable = FALSE; + } + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + /* there's a lot of magic in this function! */ + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_EndSubPath( FT_Stroker stroker ) + { + FT_Error error = FT_Err_Ok; + + + if ( stroker->subpath_open ) + { + FT_StrokeBorder right = stroker->borders; + + + /* All right, this is an opened path, we need to add a cap between */ + /* right & left, add the reverse of left, then add a final cap */ + /* between left & right. */ + error = ft_stroker_cap( stroker, stroker->angle_in, 0 ); + if ( error ) + goto Exit; + + /* add reversed points from `left' to `right' */ + error = ft_stroker_add_reverse_left( stroker, TRUE ); + if ( error ) + goto Exit; + + /* now add the final cap */ + stroker->center = stroker->subpath_start; + error = ft_stroker_cap( stroker, + stroker->subpath_angle + FT_ANGLE_PI, 0 ); + if ( error ) + goto Exit; + + /* Now end the right subpath accordingly. The left one is */ + /* rewind and doesn't need further processing. */ + ft_stroke_border_close( right, FALSE ); + } + else + { + FT_Angle turn; + FT_Int inside_side; + + + /* close the path if needed */ + if ( stroker->center.x != stroker->subpath_start.x || + stroker->center.y != stroker->subpath_start.y ) + { + error = FT_Stroker_LineTo( stroker, &stroker->subpath_start ); + if ( error ) + goto Exit; + } + + /* process the corner */ + stroker->angle_out = stroker->subpath_angle; + turn = FT_Angle_Diff( stroker->angle_in, + stroker->angle_out ); + + /* no specific corner processing is required if the turn is 0 */ + if ( turn != 0 ) + { + /* when we turn to the right, the inside side is 0 */ + inside_side = 0; + + /* otherwise, the inside side is 1 */ + if ( turn < 0 ) + inside_side = 1; + + error = ft_stroker_inside( stroker, + inside_side, + stroker->subpath_line_length ); + if ( error ) + goto Exit; + + /* process the outside side */ + error = ft_stroker_outside( stroker, + 1 - inside_side, + stroker->subpath_line_length ); + if ( error ) + goto Exit; + } + + /* then end our two subpaths */ + ft_stroke_border_close( stroker->borders + 0, FALSE ); + ft_stroke_border_close( stroker->borders + 1, TRUE ); + } + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_GetBorderCounts( FT_Stroker stroker, + FT_StrokerBorder border, + FT_UInt *anum_points, + FT_UInt *anum_contours ) + { + FT_UInt num_points = 0, num_contours = 0; + FT_Error error; + + + if ( !stroker || border > 1 ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + error = ft_stroke_border_get_counts( stroker->borders + border, + &num_points, &num_contours ); + Exit: + if ( anum_points ) + *anum_points = num_points; + + if ( anum_contours ) + *anum_contours = num_contours; + + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_GetCounts( FT_Stroker stroker, + FT_UInt *anum_points, + FT_UInt *anum_contours ) + { + FT_UInt count1, count2, num_points = 0; + FT_UInt count3, count4, num_contours = 0; + FT_Error error; + + + error = ft_stroke_border_get_counts( stroker->borders + 0, + &count1, &count2 ); + if ( error ) + goto Exit; + + error = ft_stroke_border_get_counts( stroker->borders + 1, + &count3, &count4 ); + if ( error ) + goto Exit; + + num_points = count1 + count3; + num_contours = count2 + count4; + + Exit: + *anum_points = num_points; + *anum_contours = num_contours; + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( void ) + FT_Stroker_ExportBorder( FT_Stroker stroker, + FT_StrokerBorder border, + FT_Outline* outline ) + { + if ( border == FT_STROKER_BORDER_LEFT || + border == FT_STROKER_BORDER_RIGHT ) + { + FT_StrokeBorder sborder = & stroker->borders[border]; + + + if ( sborder->valid ) + ft_stroke_border_export( sborder, outline ); + } + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( void ) + FT_Stroker_Export( FT_Stroker stroker, + FT_Outline* outline ) + { + FT_Stroker_ExportBorder( stroker, FT_STROKER_BORDER_LEFT, outline ); + FT_Stroker_ExportBorder( stroker, FT_STROKER_BORDER_RIGHT, outline ); + } + + + /* documentation is in ftstroke.h */ + + /* + * The following is very similar to FT_Outline_Decompose, except + * that we do support opened paths, and do not scale the outline. + */ + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_ParseOutline( FT_Stroker stroker, + FT_Outline* outline, + FT_Bool opened ) + { + FT_Vector v_last; + FT_Vector v_control; + FT_Vector v_start; + + FT_Vector* point; + FT_Vector* limit; + char* tags; + + FT_Error error; + + FT_Int n; /* index of contour in outline */ + FT_UInt first; /* index of first point in contour */ + FT_Int tag; /* current point's state */ + + + if ( !outline || !stroker ) + return FT_Err_Invalid_Argument; + + FT_Stroker_Rewind( stroker ); + + first = 0; + + for ( n = 0; n < outline->n_contours; n++ ) + { + FT_UInt last; /* index of last point in contour */ + + + last = outline->contours[n]; + limit = outline->points + last; + + /* skip empty points; we don't stroke these */ + if ( last <= first ) + { + first = last + 1; + continue; + } + + v_start = outline->points[first]; + v_last = outline->points[last]; + + v_control = v_start; + + point = outline->points + first; + tags = outline->tags + first; + tag = FT_CURVE_TAG( tags[0] ); + + /* A contour cannot start with a cubic control point! */ + if ( tag == FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + /* check first point to determine origin */ + if ( tag == FT_CURVE_TAG_CONIC ) + { + /* First point is conic control. Yes, this happens. */ + if ( FT_CURVE_TAG( outline->tags[last] ) == FT_CURVE_TAG_ON ) + { + /* start at last point if it is on the curve */ + v_start = v_last; + limit--; + } + else + { + /* if both first and last points are conic, */ + /* start at their middle */ + v_start.x = ( v_start.x + v_last.x ) / 2; + v_start.y = ( v_start.y + v_last.y ) / 2; + } + point--; + tags--; + } + + error = FT_Stroker_BeginSubPath( stroker, &v_start, opened ); + if ( error ) + goto Exit; + + while ( point < limit ) + { + point++; + tags++; + + tag = FT_CURVE_TAG( tags[0] ); + switch ( tag ) + { + case FT_CURVE_TAG_ON: /* emit a single line_to */ + { + FT_Vector vec; + + + vec.x = point->x; + vec.y = point->y; + + error = FT_Stroker_LineTo( stroker, &vec ); + if ( error ) + goto Exit; + continue; + } + + case FT_CURVE_TAG_CONIC: /* consume conic arcs */ + v_control.x = point->x; + v_control.y = point->y; + + Do_Conic: + if ( point < limit ) + { + FT_Vector vec; + FT_Vector v_middle; + + + point++; + tags++; + tag = FT_CURVE_TAG( tags[0] ); + + vec = point[0]; + + if ( tag == FT_CURVE_TAG_ON ) + { + error = FT_Stroker_ConicTo( stroker, &v_control, &vec ); + if ( error ) + goto Exit; + continue; + } + + if ( tag != FT_CURVE_TAG_CONIC ) + goto Invalid_Outline; + + v_middle.x = ( v_control.x + vec.x ) / 2; + v_middle.y = ( v_control.y + vec.y ) / 2; + + error = FT_Stroker_ConicTo( stroker, &v_control, &v_middle ); + if ( error ) + goto Exit; + + v_control = vec; + goto Do_Conic; + } + + error = FT_Stroker_ConicTo( stroker, &v_control, &v_start ); + goto Close; + + default: /* FT_CURVE_TAG_CUBIC */ + { + FT_Vector vec1, vec2; + + + if ( point + 1 > limit || + FT_CURVE_TAG( tags[1] ) != FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + point += 2; + tags += 2; + + vec1 = point[-2]; + vec2 = point[-1]; + + if ( point <= limit ) + { + FT_Vector vec; + + + vec = point[0]; + + error = FT_Stroker_CubicTo( stroker, &vec1, &vec2, &vec ); + if ( error ) + goto Exit; + continue; + } + + error = FT_Stroker_CubicTo( stroker, &vec1, &vec2, &v_start ); + goto Close; + } + } + } + + Close: + if ( error ) + goto Exit; + + /* don't try to end the path if no segments have been generated */ + if ( !stroker->first_point ) + { + error = FT_Stroker_EndSubPath( stroker ); + if ( error ) + goto Exit; + } + + first = last + 1; + } + + return FT_Err_Ok; + + Exit: + return error; + + Invalid_Outline: + return FT_Err_Invalid_Outline; + } + + + /* declare an extern to access `ft_outline_glyph_class' globally */ + /* allocated in `ftglyph.c', and use the FT_OUTLINE_GLYPH_CLASS_GET */ + /* macro to access it when FT_CONFIG_OPTION_PIC is defined */ +#ifndef FT_CONFIG_OPTION_PIC + extern const FT_Glyph_Class ft_outline_glyph_class; +#endif +#include "basepic.h" + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_Stroke( FT_Glyph *pglyph, + FT_Stroker stroker, + FT_Bool destroy ) + { + FT_Error error = FT_Err_Invalid_Argument; + FT_Glyph glyph = NULL; + FT_Library library = stroker->library; + + FT_UNUSED( library ); + + + if ( pglyph == NULL ) + goto Exit; + + glyph = *pglyph; + if ( glyph == NULL || glyph->clazz != FT_OUTLINE_GLYPH_CLASS_GET ) + goto Exit; + + { + FT_Glyph copy; + + + error = FT_Glyph_Copy( glyph, © ); + if ( error ) + goto Exit; + + glyph = copy; + } + + { + FT_OutlineGlyph oglyph = (FT_OutlineGlyph)glyph; + FT_Outline* outline = &oglyph->outline; + FT_UInt num_points, num_contours; + + + error = FT_Stroker_ParseOutline( stroker, outline, FALSE ); + if ( error ) + goto Fail; + + (void)FT_Stroker_GetCounts( stroker, &num_points, &num_contours ); + + FT_Outline_Done( glyph->library, outline ); + + error = FT_Outline_New( glyph->library, + num_points, num_contours, outline ); + if ( error ) + goto Fail; + + outline->n_points = 0; + outline->n_contours = 0; + + FT_Stroker_Export( stroker, outline ); + } + + if ( destroy ) + FT_Done_Glyph( *pglyph ); + + *pglyph = glyph; + goto Exit; + + Fail: + FT_Done_Glyph( glyph ); + glyph = NULL; + + if ( !destroy ) + *pglyph = NULL; + + Exit: + return error; + } + + + /* documentation is in ftstroke.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_StrokeBorder( FT_Glyph *pglyph, + FT_Stroker stroker, + FT_Bool inside, + FT_Bool destroy ) + { + FT_Error error = FT_Err_Invalid_Argument; + FT_Glyph glyph = NULL; + FT_Library library = stroker->library; + + FT_UNUSED( library ); + + + if ( pglyph == NULL ) + goto Exit; + + glyph = *pglyph; + if ( glyph == NULL || glyph->clazz != FT_OUTLINE_GLYPH_CLASS_GET ) + goto Exit; + + { + FT_Glyph copy; + + + error = FT_Glyph_Copy( glyph, © ); + if ( error ) + goto Exit; + + glyph = copy; + } + + { + FT_OutlineGlyph oglyph = (FT_OutlineGlyph)glyph; + FT_StrokerBorder border; + FT_Outline* outline = &oglyph->outline; + FT_UInt num_points, num_contours; + + + border = FT_Outline_GetOutsideBorder( outline ); + if ( inside ) + { + if ( border == FT_STROKER_BORDER_LEFT ) + border = FT_STROKER_BORDER_RIGHT; + else + border = FT_STROKER_BORDER_LEFT; + } + + error = FT_Stroker_ParseOutline( stroker, outline, FALSE ); + if ( error ) + goto Fail; + + (void)FT_Stroker_GetBorderCounts( stroker, border, + &num_points, &num_contours ); + + FT_Outline_Done( glyph->library, outline ); + + error = FT_Outline_New( glyph->library, + num_points, + num_contours, + outline ); + if ( error ) + goto Fail; + + outline->n_points = 0; + outline->n_contours = 0; + + FT_Stroker_ExportBorder( stroker, border, outline ); + } + + if ( destroy ) + FT_Done_Glyph( *pglyph ); + + *pglyph = glyph; + goto Exit; + + Fail: + FT_Done_Glyph( glyph ); + glyph = NULL; + + if ( !destroy ) + *pglyph = NULL; + + Exit: + return error; + } + + +/* END */ diff --git a/src/base/ftsynth.c b/src/base/ftsynth.c new file mode 100644 index 0000000..d4ec0da --- /dev/null +++ b/src/base/ftsynth.c @@ -0,0 +1,160 @@ +/***************************************************************************/ +/* */ +/* ftsynth.c */ +/* */ +/* FreeType synthesizing code for emboldening and slanting (body). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_SYNTHESIS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_OUTLINE_H +#include FT_BITMAP_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_synth + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** EXPERIMENTAL OBLIQUING SUPPORT ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + /* documentation is in ftsynth.h */ + + FT_EXPORT_DEF( void ) + FT_GlyphSlot_Oblique( FT_GlyphSlot slot ) + { + FT_Matrix transform; + FT_Outline* outline = &slot->outline; + + + /* only oblique outline glyphs */ + if ( slot->format != FT_GLYPH_FORMAT_OUTLINE ) + return; + + /* we don't touch the advance width */ + + /* For italic, simply apply a shear transform, with an angle */ + /* of about 12 degrees. */ + + transform.xx = 0x10000L; + transform.yx = 0x00000L; + + transform.xy = 0x06000L; + transform.yy = 0x10000L; + + FT_Outline_Transform( outline, &transform ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** EXPERIMENTAL EMBOLDENING/OUTLINING SUPPORT ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* documentation is in ftsynth.h */ + + FT_EXPORT_DEF( void ) + FT_GlyphSlot_Embolden( FT_GlyphSlot slot ) + { + FT_Library library = slot->library; + FT_Face face = slot->face; + FT_Error error; + FT_Pos xstr, ystr; + + + if ( slot->format != FT_GLYPH_FORMAT_OUTLINE && + slot->format != FT_GLYPH_FORMAT_BITMAP ) + return; + + /* some reasonable strength */ + xstr = FT_MulFix( face->units_per_EM, + face->size->metrics.y_scale ) / 24; + ystr = xstr; + + if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) + { + /* ignore error */ + (void)FT_Outline_Embolden( &slot->outline, xstr ); + + /* this is more than enough for most glyphs; if you need accurate */ + /* values, you have to call FT_Outline_Get_CBox */ + xstr = xstr * 2; + ystr = xstr; + } + else /* slot->format == FT_GLYPH_FORMAT_BITMAP */ + { + /* round to full pixels */ + xstr &= ~63; + if ( xstr == 0 ) + xstr = 1 << 6; + ystr &= ~63; + + /* + * XXX: overflow check for 16-bit system, for compatibility + * with FT_GlyphSlot_Embolden() since freetype-2.1.10. + * unfortunately, this function return no informations + * about the cause of error. + */ + if ( ( ystr >> 6 ) > FT_INT_MAX || ( ystr >> 6 ) < FT_INT_MIN ) + { + FT_TRACE1(( "FT_GlyphSlot_Embolden:" )); + FT_TRACE1(( "too strong embolding parameter ystr=%d\n", ystr )); + return; + } + error = FT_GlyphSlot_Own_Bitmap( slot ); + if ( error ) + return; + + error = FT_Bitmap_Embolden( library, &slot->bitmap, xstr, ystr ); + if ( error ) + return; + } + + if ( slot->advance.x ) + slot->advance.x += xstr; + + if ( slot->advance.y ) + slot->advance.y += ystr; + + slot->metrics.width += xstr; + slot->metrics.height += ystr; + slot->metrics.horiBearingY += ystr; + slot->metrics.horiAdvance += xstr; + slot->metrics.vertBearingX -= xstr / 2; + slot->metrics.vertBearingY += ystr; + slot->metrics.vertAdvance += ystr; + + /* XXX: 16-bit overflow case must be excluded before here */ + if ( slot->format == FT_GLYPH_FORMAT_BITMAP ) + slot->bitmap_top += (FT_Int)( ystr >> 6 ); + } + + +/* END */ diff --git a/src/base/ftsystem.c b/src/base/ftsystem.c new file mode 100644 index 0000000..7e203be --- /dev/null +++ b/src/base/ftsystem.c @@ -0,0 +1,320 @@ +/***************************************************************************/ +/* */ +/* ftsystem.c */ +/* */ +/* ANSI-specific FreeType low-level system interface (body). */ +/* */ +/* Copyright 1996-2002, 2006, 2008-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* This file contains the default interface used by FreeType to access */ + /* low-level, i.e. memory management, i/o access as well as thread */ + /* synchronisation. It can be replaced by user-specific routines if */ + /* necessary. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_SYSTEM_H +#include FT_ERRORS_H +#include FT_TYPES_H + + + /*************************************************************************/ + /* */ + /* MEMORY MANAGEMENT INTERFACE */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* It is not necessary to do any error checking for the */ + /* allocation-related functions. This will be done by the higher level */ + /* routines like ft_mem_alloc() or ft_mem_realloc(). */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_alloc */ + /* */ + /* <Description> */ + /* The memory allocation function. */ + /* */ + /* <Input> */ + /* memory :: A pointer to the memory object. */ + /* */ + /* size :: The requested size in bytes. */ + /* */ + /* <Return> */ + /* The address of newly allocated block. */ + /* */ + FT_CALLBACK_DEF( void* ) + ft_alloc( FT_Memory memory, + long size ) + { + FT_UNUSED( memory ); + + return ft_smalloc( size ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_realloc */ + /* */ + /* <Description> */ + /* The memory reallocation function. */ + /* */ + /* <Input> */ + /* memory :: A pointer to the memory object. */ + /* */ + /* cur_size :: The current size of the allocated memory block. */ + /* */ + /* new_size :: The newly requested size in bytes. */ + /* */ + /* block :: The current address of the block in memory. */ + /* */ + /* <Return> */ + /* The address of the reallocated memory block. */ + /* */ + FT_CALLBACK_DEF( void* ) + ft_realloc( FT_Memory memory, + long cur_size, + long new_size, + void* block ) + { + FT_UNUSED( memory ); + FT_UNUSED( cur_size ); + + return ft_srealloc( block, new_size ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_free */ + /* */ + /* <Description> */ + /* The memory release function. */ + /* */ + /* <Input> */ + /* memory :: A pointer to the memory object. */ + /* */ + /* block :: The address of block in memory to be freed. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_free( FT_Memory memory, + void* block ) + { + FT_UNUSED( memory ); + + ft_sfree( block ); + } + + + /*************************************************************************/ + /* */ + /* RESOURCE MANAGEMENT INTERFACE */ + /* */ + /*************************************************************************/ + +#ifndef FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_io + + /* We use the macro STREAM_FILE for convenience to extract the */ + /* system-specific stream handle from a given FreeType stream object */ +#define STREAM_FILE( stream ) ( (FT_FILE*)stream->descriptor.pointer ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_ansi_stream_close */ + /* */ + /* <Description> */ + /* The function to close a stream. */ + /* */ + /* <Input> */ + /* stream :: A pointer to the stream object. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_ansi_stream_close( FT_Stream stream ) + { + ft_fclose( STREAM_FILE( stream ) ); + + stream->descriptor.pointer = NULL; + stream->size = 0; + stream->base = 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_ansi_stream_io */ + /* */ + /* <Description> */ + /* The function to open a stream. */ + /* */ + /* <Input> */ + /* stream :: A pointer to the stream object. */ + /* */ + /* offset :: The position in the data stream to start reading. */ + /* */ + /* buffer :: The address of buffer to store the read data. */ + /* */ + /* count :: The number of bytes to read from the stream. */ + /* */ + /* <Return> */ + /* The number of bytes actually read. If `count' is zero (this is, */ + /* the function is used for seeking), a non-zero return value */ + /* indicates an error. */ + /* */ + FT_CALLBACK_DEF( unsigned long ) + ft_ansi_stream_io( FT_Stream stream, + unsigned long offset, + unsigned char* buffer, + unsigned long count ) + { + FT_FILE* file; + + + if ( !count && offset > stream->size ) + return 1; + + file = STREAM_FILE( stream ); + + if ( stream->pos != offset ) + ft_fseek( file, offset, SEEK_SET ); + + return (unsigned long)ft_fread( buffer, 1, count, file ); + } + + + /* documentation is in ftstream.h */ + + FT_BASE_DEF( FT_Error ) + FT_Stream_Open( FT_Stream stream, + const char* filepathname ) + { + FT_FILE* file; + + + if ( !stream ) + return FT_Err_Invalid_Stream_Handle; + + stream->descriptor.pointer = NULL; + stream->pathname.pointer = (char*)filepathname; + stream->base = 0; + stream->pos = 0; + stream->read = NULL; + stream->close = NULL; + + file = ft_fopen( filepathname, "rb" ); + if ( !file ) + { + FT_ERROR(( "FT_Stream_Open:" + " could not open `%s'\n", filepathname )); + + return FT_Err_Cannot_Open_Resource; + } + + ft_fseek( file, 0, SEEK_END ); + stream->size = ft_ftell( file ); + if ( !stream->size ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " opened `%s' but zero-sized\n", filepathname )); + ft_fclose( file ); + return FT_Err_Cannot_Open_Stream; + } + ft_fseek( file, 0, SEEK_SET ); + + stream->descriptor.pointer = file; + stream->read = ft_ansi_stream_io; + stream->close = ft_ansi_stream_close; + + FT_TRACE1(( "FT_Stream_Open:" )); + FT_TRACE1(( " opened `%s' (%d bytes) successfully\n", + filepathname, stream->size )); + + return FT_Err_Ok; + } + +#endif /* !FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */ + +#ifdef FT_DEBUG_MEMORY + + extern FT_Int + ft_mem_debug_init( FT_Memory memory ); + + extern void + ft_mem_debug_done( FT_Memory memory ); + +#endif + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Memory ) + FT_New_Memory( void ) + { + FT_Memory memory; + + + memory = (FT_Memory)ft_smalloc( sizeof ( *memory ) ); + if ( memory ) + { + memory->user = 0; + memory->alloc = ft_alloc; + memory->realloc = ft_realloc; + memory->free = ft_free; +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_init( memory ); +#endif + } + + return memory; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( void ) + FT_Done_Memory( FT_Memory memory ) + { +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_done( memory ); +#endif + ft_sfree( memory ); + } + + +/* END */ diff --git a/src/base/fttrigon.c b/src/base/fttrigon.c new file mode 100644 index 0000000..fdf433a --- /dev/null +++ b/src/base/fttrigon.c @@ -0,0 +1,546 @@ +/***************************************************************************/ +/* */ +/* fttrigon.c */ +/* */ +/* FreeType trigonometric functions (body). */ +/* */ +/* Copyright 2001, 2002, 2003, 2004, 2005 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_TRIGONOMETRY_H + + + /* the following is 0.2715717684432231 * 2^30 */ +#define FT_TRIG_COSCALE 0x11616E8EUL + + /* this table was generated for FT_PI = 180L << 16, i.e. degrees */ +#define FT_TRIG_MAX_ITERS 23 + + static const FT_Fixed + ft_trig_arctan_table[24] = + { + 4157273L, 2949120L, 1740967L, 919879L, 466945L, 234379L, 117304L, + 58666L, 29335L, 14668L, 7334L, 3667L, 1833L, 917L, 458L, 229L, 115L, + 57L, 29L, 14L, 7L, 4L, 2L, 1L + }; + + /* the Cordic shrink factor, multiplied by 2^32 */ +#define FT_TRIG_SCALE 1166391785UL /* 0x4585BA38UL */ + + +#ifdef FT_CONFIG_HAS_INT64 + + /* multiply a given value by the CORDIC shrink factor */ + static FT_Fixed + ft_trig_downscale( FT_Fixed val ) + { + FT_Fixed s; + FT_Int64 v; + + + s = val; + val = ( val >= 0 ) ? val : -val; + + v = ( val * (FT_Int64)FT_TRIG_SCALE ) + 0x100000000UL; + val = (FT_Fixed)( v >> 32 ); + + return ( s >= 0 ) ? val : -val; + } + +#else /* !FT_CONFIG_HAS_INT64 */ + + /* multiply a given value by the CORDIC shrink factor */ + static FT_Fixed + ft_trig_downscale( FT_Fixed val ) + { + FT_Fixed s; + FT_UInt32 v1, v2, k1, k2, hi, lo1, lo2, lo3; + + + s = val; + val = ( val >= 0 ) ? val : -val; + + v1 = (FT_UInt32)val >> 16; + v2 = (FT_UInt32)(val & 0xFFFFL); + + k1 = (FT_UInt32)FT_TRIG_SCALE >> 16; /* constant */ + k2 = (FT_UInt32)(FT_TRIG_SCALE & 0xFFFFL); /* constant */ + + hi = k1 * v1; + lo1 = k1 * v2 + k2 * v1; /* can't overflow */ + + lo2 = ( k2 * v2 ) >> 16; + lo3 = ( lo1 >= lo2 ) ? lo1 : lo2; + lo1 += lo2; + + hi += lo1 >> 16; + if ( lo1 < lo3 ) + hi += (FT_UInt32)0x10000UL; + + val = (FT_Fixed)hi; + + return ( s >= 0 ) ? val : -val; + } + +#endif /* !FT_CONFIG_HAS_INT64 */ + + + static FT_Int + ft_trig_prenorm( FT_Vector* vec ) + { + FT_Fixed x, y, z; + FT_Int shift; + + + x = vec->x; + y = vec->y; + + z = ( ( x >= 0 ) ? x : - x ) | ( (y >= 0) ? y : -y ); + shift = 0; + +#if 1 + /* determine msb bit index in `shift' */ + if ( z >= ( 1L << 16 ) ) + { + z >>= 16; + shift += 16; + } + if ( z >= ( 1L << 8 ) ) + { + z >>= 8; + shift += 8; + } + if ( z >= ( 1L << 4 ) ) + { + z >>= 4; + shift += 4; + } + if ( z >= ( 1L << 2 ) ) + { + z >>= 2; + shift += 2; + } + if ( z >= ( 1L << 1 ) ) + { + z >>= 1; + shift += 1; + } + + if ( shift <= 27 ) + { + shift = 27 - shift; + vec->x = x << shift; + vec->y = y << shift; + } + else + { + shift -= 27; + vec->x = x >> shift; + vec->y = y >> shift; + shift = -shift; + } + +#else /* 0 */ + + if ( z < ( 1L << 27 ) ) + { + do + { + shift++; + z <<= 1; + } while ( z < ( 1L << 27 ) ); + vec->x = x << shift; + vec->y = y << shift; + } + else if ( z > ( 1L << 28 ) ) + { + do + { + shift++; + z >>= 1; + } while ( z > ( 1L << 28 ) ); + + vec->x = x >> shift; + vec->y = y >> shift; + shift = -shift; + } + +#endif /* 0 */ + + return shift; + } + + + static void + ft_trig_pseudo_rotate( FT_Vector* vec, + FT_Angle theta ) + { + FT_Int i; + FT_Fixed x, y, xtemp; + const FT_Fixed *arctanptr; + + + x = vec->x; + y = vec->y; + + /* Get angle between -90 and 90 degrees */ + while ( theta <= -FT_ANGLE_PI2 ) + { + x = -x; + y = -y; + theta += FT_ANGLE_PI; + } + + while ( theta > FT_ANGLE_PI2 ) + { + x = -x; + y = -y; + theta -= FT_ANGLE_PI; + } + + /* Initial pseudorotation, with left shift */ + arctanptr = ft_trig_arctan_table; + + if ( theta < 0 ) + { + xtemp = x + ( y << 1 ); + y = y - ( x << 1 ); + x = xtemp; + theta += *arctanptr++; + } + else + { + xtemp = x - ( y << 1 ); + y = y + ( x << 1 ); + x = xtemp; + theta -= *arctanptr++; + } + + /* Subsequent pseudorotations, with right shifts */ + i = 0; + do + { + if ( theta < 0 ) + { + xtemp = x + ( y >> i ); + y = y - ( x >> i ); + x = xtemp; + theta += *arctanptr++; + } + else + { + xtemp = x - ( y >> i ); + y = y + ( x >> i ); + x = xtemp; + theta -= *arctanptr++; + } + } while ( ++i < FT_TRIG_MAX_ITERS ); + + vec->x = x; + vec->y = y; + } + + + static void + ft_trig_pseudo_polarize( FT_Vector* vec ) + { + FT_Fixed theta; + FT_Fixed yi, i; + FT_Fixed x, y; + const FT_Fixed *arctanptr; + + + x = vec->x; + y = vec->y; + + /* Get the vector into the right half plane */ + theta = 0; + if ( x < 0 ) + { + x = -x; + y = -y; + theta = 2 * FT_ANGLE_PI2; + } + + if ( y > 0 ) + theta = - theta; + + arctanptr = ft_trig_arctan_table; + + if ( y < 0 ) + { + /* Rotate positive */ + yi = y + ( x << 1 ); + x = x - ( y << 1 ); + y = yi; + theta -= *arctanptr++; /* Subtract angle */ + } + else + { + /* Rotate negative */ + yi = y - ( x << 1 ); + x = x + ( y << 1 ); + y = yi; + theta += *arctanptr++; /* Add angle */ + } + + i = 0; + do + { + if ( y < 0 ) + { + /* Rotate positive */ + yi = y + ( x >> i ); + x = x - ( y >> i ); + y = yi; + theta -= *arctanptr++; + } + else + { + /* Rotate negative */ + yi = y - ( x >> i ); + x = x + ( y >> i ); + y = yi; + theta += *arctanptr++; + } + } while ( ++i < FT_TRIG_MAX_ITERS ); + + /* round theta */ + if ( theta >= 0 ) + theta = FT_PAD_ROUND( theta, 32 ); + else + theta = -FT_PAD_ROUND( -theta, 32 ); + + vec->x = x; + vec->y = theta; + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_Cos( FT_Angle angle ) + { + FT_Vector v; + + + v.x = FT_TRIG_COSCALE >> 2; + v.y = 0; + ft_trig_pseudo_rotate( &v, angle ); + + return v.x / ( 1 << 12 ); + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_Sin( FT_Angle angle ) + { + return FT_Cos( FT_ANGLE_PI2 - angle ); + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_Tan( FT_Angle angle ) + { + FT_Vector v; + + + v.x = FT_TRIG_COSCALE >> 2; + v.y = 0; + ft_trig_pseudo_rotate( &v, angle ); + + return FT_DivFix( v.y, v.x ); + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Angle ) + FT_Atan2( FT_Fixed dx, + FT_Fixed dy ) + { + FT_Vector v; + + + if ( dx == 0 && dy == 0 ) + return 0; + + v.x = dx; + v.y = dy; + ft_trig_prenorm( &v ); + ft_trig_pseudo_polarize( &v ); + + return v.y; + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_Unit( FT_Vector* vec, + FT_Angle angle ) + { + vec->x = FT_TRIG_COSCALE >> 2; + vec->y = 0; + ft_trig_pseudo_rotate( vec, angle ); + vec->x >>= 12; + vec->y >>= 12; + } + + + /* these macros return 0 for positive numbers, + and -1 for negative ones */ +#define FT_SIGN_LONG( x ) ( (x) >> ( FT_SIZEOF_LONG * 8 - 1 ) ) +#define FT_SIGN_INT( x ) ( (x) >> ( FT_SIZEOF_INT * 8 - 1 ) ) +#define FT_SIGN_INT32( x ) ( (x) >> 31 ) +#define FT_SIGN_INT16( x ) ( (x) >> 15 ) + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_Rotate( FT_Vector* vec, + FT_Angle angle ) + { + FT_Int shift; + FT_Vector v; + + + v.x = vec->x; + v.y = vec->y; + + if ( angle && ( v.x != 0 || v.y != 0 ) ) + { + shift = ft_trig_prenorm( &v ); + ft_trig_pseudo_rotate( &v, angle ); + v.x = ft_trig_downscale( v.x ); + v.y = ft_trig_downscale( v.y ); + + if ( shift > 0 ) + { + FT_Int32 half = (FT_Int32)1L << ( shift - 1 ); + + + vec->x = ( v.x + half + FT_SIGN_LONG( v.x ) ) >> shift; + vec->y = ( v.y + half + FT_SIGN_LONG( v.y ) ) >> shift; + } + else + { + shift = -shift; + vec->x = v.x << shift; + vec->y = v.y << shift; + } + } + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_Vector_Length( FT_Vector* vec ) + { + FT_Int shift; + FT_Vector v; + + + v = *vec; + + /* handle trivial cases */ + if ( v.x == 0 ) + { + return ( v.y >= 0 ) ? v.y : -v.y; + } + else if ( v.y == 0 ) + { + return ( v.x >= 0 ) ? v.x : -v.x; + } + + /* general case */ + shift = ft_trig_prenorm( &v ); + ft_trig_pseudo_polarize( &v ); + + v.x = ft_trig_downscale( v.x ); + + if ( shift > 0 ) + return ( v.x + ( 1 << ( shift - 1 ) ) ) >> shift; + + return v.x << -shift; + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_Polarize( FT_Vector* vec, + FT_Fixed *length, + FT_Angle *angle ) + { + FT_Int shift; + FT_Vector v; + + + v = *vec; + + if ( v.x == 0 && v.y == 0 ) + return; + + shift = ft_trig_prenorm( &v ); + ft_trig_pseudo_polarize( &v ); + + v.x = ft_trig_downscale( v.x ); + + *length = ( shift >= 0 ) ? ( v.x >> shift ) : ( v.x << -shift ); + *angle = v.y; + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_From_Polar( FT_Vector* vec, + FT_Fixed length, + FT_Angle angle ) + { + vec->x = length; + vec->y = 0; + + FT_Vector_Rotate( vec, angle ); + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Angle ) + FT_Angle_Diff( FT_Angle angle1, + FT_Angle angle2 ) + { + FT_Angle delta = angle2 - angle1; + + + delta %= FT_ANGLE_2PI; + if ( delta < 0 ) + delta += FT_ANGLE_2PI; + + if ( delta > FT_ANGLE_PI ) + delta -= FT_ANGLE_2PI; + + return delta; + } + + +/* END */ diff --git a/src/base/fttype1.c b/src/base/fttype1.c new file mode 100644 index 0000000..885dba5 --- /dev/null +++ b/src/base/fttype1.c @@ -0,0 +1,120 @@ +/***************************************************************************/ +/* */ +/* fttype1.c */ +/* */ +/* FreeType utility file for PS names support (body). */ +/* */ +/* Copyright 2002-2004, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_SERVICE_H +#include FT_SERVICE_POSTSCRIPT_INFO_H + + + /* documentation is in t1tables.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PS_Font_Info( FT_Face face, + PS_FontInfoRec* afont_info ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + if ( face ) + { + FT_Service_PsInfo service = NULL; + + + FT_FACE_FIND_SERVICE( face, service, POSTSCRIPT_INFO ); + + if ( service && service->ps_get_font_info ) + error = service->ps_get_font_info( face, afont_info ); + } + + return error; + } + + + /* documentation is in t1tables.h */ + + FT_EXPORT_DEF( FT_Int ) + FT_Has_PS_Glyph_Names( FT_Face face ) + { + FT_Int result = 0; + FT_Service_PsInfo service = NULL; + + + if ( face ) + { + FT_FACE_FIND_SERVICE( face, service, POSTSCRIPT_INFO ); + + if ( service && service->ps_has_glyph_names ) + result = service->ps_has_glyph_names( face ); + } + + return result; + } + + + /* documentation is in t1tables.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PS_Font_Private( FT_Face face, + PS_PrivateRec* afont_private ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + if ( face ) + { + FT_Service_PsInfo service = NULL; + + + FT_FACE_FIND_SERVICE( face, service, POSTSCRIPT_INFO ); + + if ( service && service->ps_get_font_private ) + error = service->ps_get_font_private( face, afont_private ); + } + + return error; + } + + + /* documentation is in t1tables.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_Get_PS_Font_Value( FT_Face face, + PS_Dict_Keys key, + FT_UInt idx, + void *value, + FT_Long value_len ) + { + FT_Int result = 0; + FT_Service_PsInfo service = NULL; + + + if ( face ) + { + FT_FACE_FIND_SERVICE( face, service, POSTSCRIPT_INFO ); + + if ( service && service->ps_get_font_value ) + result = service->ps_get_font_value( face, key, idx, + value, value_len ); + } + + return result; + } + + +/* END */ diff --git a/src/base/ftutil.c b/src/base/ftutil.c new file mode 100644 index 0000000..5f77be5 --- /dev/null +++ b/src/base/ftutil.c @@ -0,0 +1,501 @@ +/***************************************************************************/ +/* */ +/* ftutil.c */ +/* */ +/* FreeType utility file for memory and list management (body). */ +/* */ +/* Copyright 2002, 2004, 2005, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_OBJECTS_H +#include FT_LIST_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_memory + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** *****/ + /***** M E M O R Y M A N A G E M E N T *****/ + /***** *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_BASE_DEF( FT_Pointer ) + ft_mem_alloc( FT_Memory memory, + FT_Long size, + FT_Error *p_error ) + { + FT_Error error; + FT_Pointer block = ft_mem_qalloc( memory, size, &error ); + + if ( !error && size > 0 ) + FT_MEM_ZERO( block, size ); + + *p_error = error; + return block; + } + + + FT_BASE_DEF( FT_Pointer ) + ft_mem_qalloc( FT_Memory memory, + FT_Long size, + FT_Error *p_error ) + { + FT_Error error = FT_Err_Ok; + FT_Pointer block = NULL; + + + if ( size > 0 ) + { + block = memory->alloc( memory, size ); + if ( block == NULL ) + error = FT_Err_Out_Of_Memory; + } + else if ( size < 0 ) + { + /* may help catch/prevent security issues */ + error = FT_Err_Invalid_Argument; + } + + *p_error = error; + return block; + } + + + FT_BASE_DEF( FT_Pointer ) + ft_mem_realloc( FT_Memory memory, + FT_Long item_size, + FT_Long cur_count, + FT_Long new_count, + void* block, + FT_Error *p_error ) + { + FT_Error error = FT_Err_Ok; + + block = ft_mem_qrealloc( memory, item_size, + cur_count, new_count, block, &error ); + if ( !error && new_count > cur_count ) + FT_MEM_ZERO( (char*)block + cur_count * item_size, + ( new_count - cur_count ) * item_size ); + + *p_error = error; + return block; + } + + + FT_BASE_DEF( FT_Pointer ) + ft_mem_qrealloc( FT_Memory memory, + FT_Long item_size, + FT_Long cur_count, + FT_Long new_count, + void* block, + FT_Error *p_error ) + { + FT_Error error = FT_Err_Ok; + + + /* Note that we now accept `item_size == 0' as a valid parameter, in + * order to cover very weird cases where an ALLOC_MULT macro would be + * called. + */ + if ( cur_count < 0 || new_count < 0 || item_size < 0 ) + { + /* may help catch/prevent nasty security issues */ + error = FT_Err_Invalid_Argument; + } + else if ( new_count == 0 || item_size == 0 ) + { + ft_mem_free( memory, block ); + block = NULL; + } + else if ( new_count > FT_INT_MAX/item_size ) + { + error = FT_Err_Array_Too_Large; + } + else if ( cur_count == 0 ) + { + FT_ASSERT( block == NULL ); + + block = ft_mem_alloc( memory, new_count*item_size, &error ); + } + else + { + FT_Pointer block2; + FT_Long cur_size = cur_count*item_size; + FT_Long new_size = new_count*item_size; + + + block2 = memory->realloc( memory, cur_size, new_size, block ); + if ( block2 == NULL ) + error = FT_Err_Out_Of_Memory; + else + block = block2; + } + + *p_error = error; + return block; + } + + + FT_BASE_DEF( void ) + ft_mem_free( FT_Memory memory, + const void *P ) + { + if ( P ) + memory->free( memory, (void*)P ); + } + + + FT_BASE_DEF( FT_Pointer ) + ft_mem_dup( FT_Memory memory, + const void* address, + FT_ULong size, + FT_Error *p_error ) + { + FT_Error error; + FT_Pointer p = ft_mem_qalloc( memory, size, &error ); + + + if ( !error && address ) + ft_memcpy( p, address, size ); + + *p_error = error; + return p; + } + + + FT_BASE_DEF( FT_Pointer ) + ft_mem_strdup( FT_Memory memory, + const char* str, + FT_Error *p_error ) + { + FT_ULong len = str ? (FT_ULong)ft_strlen( str ) + 1 + : 0; + + + return ft_mem_dup( memory, str, len, p_error ); + } + + + FT_BASE_DEF( FT_Int ) + ft_mem_strcpyn( char* dst, + const char* src, + FT_ULong size ) + { + while ( size > 1 && *src != 0 ) + { + *dst++ = *src++; + size--; + } + + *dst = 0; /* always zero-terminate */ + + return *src != 0; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** *****/ + /***** D O U B L Y L I N K E D L I S T S *****/ + /***** *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + +#undef FT_COMPONENT +#define FT_COMPONENT trace_list + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( FT_ListNode ) + FT_List_Find( FT_List list, + void* data ) + { + FT_ListNode cur; + + + cur = list->head; + while ( cur ) + { + if ( cur->data == data ) + return cur; + + cur = cur->next; + } + + return (FT_ListNode)0; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Add( FT_List list, + FT_ListNode node ) + { + FT_ListNode before = list->tail; + + + node->next = 0; + node->prev = before; + + if ( before ) + before->next = node; + else + list->head = node; + + list->tail = node; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Insert( FT_List list, + FT_ListNode node ) + { + FT_ListNode after = list->head; + + + node->next = after; + node->prev = 0; + + if ( !after ) + list->tail = node; + else + after->prev = node; + + list->head = node; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Remove( FT_List list, + FT_ListNode node ) + { + FT_ListNode before, after; + + + before = node->prev; + after = node->next; + + if ( before ) + before->next = after; + else + list->head = after; + + if ( after ) + after->prev = before; + else + list->tail = before; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Up( FT_List list, + FT_ListNode node ) + { + FT_ListNode before, after; + + + before = node->prev; + after = node->next; + + /* check whether we are already on top of the list */ + if ( !before ) + return; + + before->next = after; + + if ( after ) + after->prev = before; + else + list->tail = before; + + node->prev = 0; + node->next = list->head; + list->head->prev = node; + list->head = node; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_List_Iterate( FT_List list, + FT_List_Iterator iterator, + void* user ) + { + FT_ListNode cur = list->head; + FT_Error error = FT_Err_Ok; + + + while ( cur ) + { + FT_ListNode next = cur->next; + + + error = iterator( cur, user ); + if ( error ) + break; + + cur = next; + } + + return error; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Finalize( FT_List list, + FT_List_Destructor destroy, + FT_Memory memory, + void* user ) + { + FT_ListNode cur; + + + cur = list->head; + while ( cur ) + { + FT_ListNode next = cur->next; + void* data = cur->data; + + + if ( destroy ) + destroy( memory, data, user ); + + FT_FREE( cur ); + cur = next; + } + + list->head = 0; + list->tail = 0; + } + + + FT_BASE_DEF( FT_UInt32 ) + ft_highpow2( FT_UInt32 value ) + { + FT_UInt32 value2; + + + /* + * We simply clear the lowest bit in each iteration. When + * we reach 0, we know that the previous value was our result. + */ + for ( ;; ) + { + value2 = value & (value - 1); /* clear lowest bit */ + if ( value2 == 0 ) + break; + + value = value2; + } + return value; + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_BASE_DEF( FT_Error ) + FT_Alloc( FT_Memory memory, + FT_Long size, + void* *P ) + { + FT_Error error; + + + (void)FT_ALLOC( *P, size ); + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_QAlloc( FT_Memory memory, + FT_Long size, + void* *p ) + { + FT_Error error; + + + (void)FT_QALLOC( *p, size ); + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_Realloc( FT_Memory memory, + FT_Long current, + FT_Long size, + void* *P ) + { + FT_Error error; + + + (void)FT_REALLOC( *P, current, size ); + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_QRealloc( FT_Memory memory, + FT_Long current, + FT_Long size, + void* *p ) + { + FT_Error error; + + + (void)FT_QREALLOC( *p, current, size ); + return error; + } + + + FT_BASE_DEF( void ) + FT_Free( FT_Memory memory, + void* *P ) + { + if ( *P ) + FT_MEM_FREE( *P ); + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + +/* END */ diff --git a/src/base/ftwinfnt.c b/src/base/ftwinfnt.c new file mode 100644 index 0000000..bc2e90e --- /dev/null +++ b/src/base/ftwinfnt.c @@ -0,0 +1,51 @@ +/***************************************************************************/ +/* */ +/* ftwinfnt.c */ +/* */ +/* FreeType API for accessing Windows FNT specific info (body). */ +/* */ +/* Copyright 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_WINFONTS_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_WINFNT_H + + + /* documentation is in ftwinfnt.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_WinFNT_Header( FT_Face face, + FT_WinFNT_HeaderRec *header ) + { + FT_Service_WinFnt service; + FT_Error error; + + + error = FT_Err_Invalid_Argument; + + if ( face != NULL ) + { + FT_FACE_LOOKUP_SERVICE( face, service, WINFNT ); + + if ( service != NULL ) + { + error = service->get_header( face, header ); + } + } + + return error; + } + + +/* END */ diff --git a/src/base/ftxf86.c b/src/base/ftxf86.c new file mode 100644 index 0000000..a4bf767 --- /dev/null +++ b/src/base/ftxf86.c @@ -0,0 +1,40 @@ +/***************************************************************************/ +/* */ +/* ftxf86.c */ +/* */ +/* FreeType utility file for X11 support (body). */ +/* */ +/* Copyright 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_XFREE86_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_XFREE86_NAME_H + + + /* documentation is in ftxf86.h */ + + FT_EXPORT_DEF( const char* ) + FT_Get_X11_Font_Format( FT_Face face ) + { + const char* result = NULL; + + + if ( face ) + FT_FACE_FIND_SERVICE( face, result, XF86_NAME ); + + return result; + } + + +/* END */ diff --git a/src/base/rules.mk b/src/base/rules.mk new file mode 100644 index 0000000..10f578a --- /dev/null +++ b/src/base/rules.mk @@ -0,0 +1,96 @@ +# +# FreeType 2 base layer configuration rules +# + + +# Copyright 1996-2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# It sets the following variables which are used by the master Makefile +# after the call: +# +# BASE_OBJ_S: The single-object base layer. +# BASE_OBJ_M: A list of all objects for a multiple-objects build. +# BASE_EXT_OBJ: A list of base layer extensions, i.e., components found +# in `freetype/src/base' which are not compiled within the +# base layer proper. + + +BASE_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(SRC_DIR)/base) + + +# Base layer sources +# +# ftsystem, ftinit, and ftdebug are handled by freetype.mk +# +# All files listed here should be included in `ftbase.c' (for a `single' +# build). +# +BASE_SRC := $(BASE_DIR)/ftadvanc.c \ + $(BASE_DIR)/ftcalc.c \ + $(BASE_DIR)/ftdbgmem.c \ + $(BASE_DIR)/ftgloadr.c \ + $(BASE_DIR)/ftobjs.c \ + $(BASE_DIR)/ftoutln.c \ + $(BASE_DIR)/ftrfork.c \ + $(BASE_DIR)/ftsnames.c \ + $(BASE_DIR)/ftstream.c \ + $(BASE_DIR)/fttrigon.c \ + $(BASE_DIR)/ftutil.c + + +ifneq ($(ftmac_c),) + BASE_SRC += $(BASE_DIR)/$(ftmac_c) +endif + +BASE_H := $(BASE_DIR)/ftbase.h + +# Base layer `extensions' sources +# +# An extension is added to the library file as a separate object. It is +# then linked to the final executable only if one of its symbols is used by +# the application. +# +BASE_EXT_SRC := $(patsubst %,$(BASE_DIR)/%,$(BASE_EXTENSIONS)) + +# Default extensions objects +# +BASE_EXT_OBJ := $(BASE_EXT_SRC:$(BASE_DIR)/%.c=$(OBJ_DIR)/%.$O) + + +# Base layer object(s) +# +# BASE_OBJ_M is used during `multi' builds (each base source file compiles +# to a single object file). +# +# BASE_OBJ_S is used during `single' builds (the whole base layer is +# compiled as a single object file using ftbase.c). +# +BASE_OBJ_M := $(BASE_SRC:$(BASE_DIR)/%.c=$(OBJ_DIR)/%.$O) +BASE_OBJ_S := $(OBJ_DIR)/ftbase.$O + +# Base layer root source file for single build +# +BASE_SRC_S := $(BASE_DIR)/ftbase.c + + +# Base layer - single object build +# +$(BASE_OBJ_S): $(BASE_SRC_S) $(BASE_SRC) $(FREETYPE_H) $(BASE_H) + $(BASE_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(BASE_SRC_S)) + + +# Multiple objects build + extensions +# +$(OBJ_DIR)/%.$O: $(BASE_DIR)/%.c $(FREETYPE_H) $(BASE_H) + $(BASE_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# EOF diff --git a/src/bdf/Jamfile b/src/bdf/Jamfile new file mode 100644 index 0000000..da23ccd --- /dev/null +++ b/src/bdf/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/bdf Jamfile +# +# Copyright 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) bdf ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = bdfdrivr bdflib ; + } + else + { + _sources = bdf ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/bdf Jamfile diff --git a/src/bdf/README b/src/bdf/README new file mode 100644 index 0000000..b761aba --- /dev/null +++ b/src/bdf/README @@ -0,0 +1,148 @@ + FreeType font driver for BDF fonts + + Francesco Zappa Nardelli + <francesco.zappa.nardelli@ens.fr> + + +Introduction +************ + +BDF (Bitmap Distribution Format) is a bitmap font format defined by Adobe, +which is intended to be easily understood by both humans and computers. +This code implements a BDF driver for the FreeType library, following the +Adobe Specification V 2.2. The specification of the BDF font format is +available from Adobe's web site: + + http://partners.adobe.com/public/developer/en/font/5005.BDF_Spec.pdf + +Many good bitmap fonts in bdf format come with XFree86 (www.XFree86.org). +They do not define vertical metrics, because the X Consortium BDF +specification has removed them. + + +Encodings +********* + +The variety of encodings that accompanies bdf fonts appears to encompass the +small set defined in freetype.h. On the other hand, two properties that +specify encoding and registry are usually defined in bdf fonts. + +I decided to make these two properties directly accessible, leaving to the +client application the work of interpreting them. For instance: + + + #include FT_INTERNAL_BDF_TYPES_H + + FT_Face face; + BDF_Public_Face bdfface; + + + FT_New_Face( library, ..., &face ); + + bdfface = (BDF_Public_Face)face; + + if ( ( bdfface->charset_registry == "ISO10646" ) && + ( bdfface->charset_encoding == "1" ) ) + [..] + + +Thus the driver always exports `ft_encoding_none' as face->charmap.encoding. +FT_Get_Char_Index's behavior is unmodified, that is, it converts the ULong +value given as argument into the corresponding glyph number. + +If the two properties are not available, Adobe Standard Encoding should be +assumed. + + +Anti-Aliased Bitmaps +******************** + +The driver supports an extension to the BDF format as used in Mark Leisher's +xmbdfed bitmap font editor. Microsoft's SBIT tool expects bitmap fonts in +that format for adding anti-aliased them to TrueType fonts. It introduces a +fourth field to the `SIZE' keyword which gives the bpp value (bits per +pixel) of the glyph data in the font. Possible values are 1 (the default), +2 (four gray levels), 4 (16 gray levels), and 8 (256 gray levels). The +driver returns either a bitmap with 1 bit per pixel or a pixmap with 8bits +per pixel (using 4, 16, and 256 gray levels, respectively). + + +Known problems +************** + +- A font is entirely loaded into memory. Obviously, this is not the Right + Thing(TM). If you have big fonts I suggest you convert them into PCF + format (using the bdftopcf utility): the PCF font drive of FreeType can + perform incremental glyph loading. + +When I have some time, I will implement on-demand glyph parsing. + +- Except for encodings properties, client applications have no visibility of + the PCF_Face object. This means that applications cannot directly access + font tables and must trust FreeType. + +- Currently, glyph names are ignored. + + I plan to give full visibility of the BDF_Face object in an upcoming + revision of the driver, thus implementing also glyph names. + +- As I have never seen a BDF font that defines vertical metrics, vertical + metrics are (parsed and) discarded. If you own a BDF font that defines + vertical metrics, please let me know (I will implement them in 5-10 + minutes). + + +License +******* + +Copyright (C) 2001-2002 by Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +*** Portions of the driver (that is, bdflib.c and bdf.h): + +Copyright 2000 Computing Research Labs, New Mexico State University +Copyright 2001-2002, 2011 Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a +copy of this software and associated documentation files (the "Software"), +to deal in the Software without restriction, including without limitation +the rights to use, copy, modify, merge, publish, distribute, sublicense, +and/or sell copies of the Software, and to permit persons to whom the +Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT +OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR +THE USE OR OTHER DEALINGS IN THE SOFTWARE. + + +Credits +******* + +This driver is based on excellent Mark Leisher's bdf library. If you +find something good in this driver you should probably thank him, not +me. diff --git a/src/bdf/bdf.c b/src/bdf/bdf.c new file mode 100644 index 0000000..f95fb76 --- /dev/null +++ b/src/bdf/bdf.c @@ -0,0 +1,34 @@ +/* bdf.c + + FreeType font driver for bdf files + + Copyright (C) 2001, 2002 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> +#include "bdflib.c" +#include "bdfdrivr.c" + + +/* END */ diff --git a/src/bdf/bdf.h b/src/bdf/bdf.h new file mode 100644 index 0000000..d11be6f --- /dev/null +++ b/src/bdf/bdf.h @@ -0,0 +1,297 @@ +/* + * Copyright 2000 Computing Research Labs, New Mexico State University + * Copyright 2001-2004, 2011 Francesco Zappa Nardelli + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT + * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#ifndef __BDF_H__ +#define __BDF_H__ + + +/* + * Based on bdf.h,v 1.16 2000/03/16 20:08:51 mleisher + */ + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_STREAM_H + + +FT_BEGIN_HEADER + + +/* Imported from bdfP.h */ + +#define _bdf_glyph_modified( map, e ) \ + ( (map)[(e) >> 5] & ( 1 << ( (e) & 31 ) ) ) +#define _bdf_set_glyph_modified( map, e ) \ + ( (map)[(e) >> 5] |= ( 1 << ( (e) & 31 ) ) ) +#define _bdf_clear_glyph_modified( map, e ) \ + ( (map)[(e) >> 5] &= ~( 1 << ( (e) & 31 ) ) ) + +/* end of bdfP.h */ + + + /*************************************************************************/ + /* */ + /* BDF font options macros and types. */ + /* */ + /*************************************************************************/ + + +#define BDF_CORRECT_METRICS 0x01 /* Correct invalid metrics when loading. */ +#define BDF_KEEP_COMMENTS 0x02 /* Preserve the font comments. */ +#define BDF_KEEP_UNENCODED 0x04 /* Keep the unencoded glyphs. */ +#define BDF_PROPORTIONAL 0x08 /* Font has proportional spacing. */ +#define BDF_MONOWIDTH 0x10 /* Font has mono width. */ +#define BDF_CHARCELL 0x20 /* Font has charcell spacing. */ + +#define BDF_ALL_SPACING ( BDF_PROPORTIONAL | \ + BDF_MONOWIDTH | \ + BDF_CHARCELL ) + +#define BDF_DEFAULT_LOAD_OPTIONS ( BDF_CORRECT_METRICS | \ + BDF_KEEP_COMMENTS | \ + BDF_KEEP_UNENCODED | \ + BDF_PROPORTIONAL ) + + + typedef struct bdf_options_t_ + { + int correct_metrics; + int keep_unencoded; + int keep_comments; + int font_spacing; + + } bdf_options_t; + + + /* Callback function type for unknown configuration options. */ + typedef int + (*bdf_options_callback_t)( bdf_options_t* opts, + char** params, + unsigned long nparams, + void* client_data ); + + + /*************************************************************************/ + /* */ + /* BDF font property macros and types. */ + /* */ + /*************************************************************************/ + + +#define BDF_ATOM 1 +#define BDF_INTEGER 2 +#define BDF_CARDINAL 3 + + + /* This structure represents a particular property of a font. */ + /* There are a set of defaults and each font has their own. */ + typedef struct bdf_property_t_ + { + char* name; /* Name of the property. */ + int format; /* Format of the property. */ + int builtin; /* A builtin property. */ + union + { + char* atom; + long l; + unsigned long ul; + + } value; /* Value of the property. */ + + } bdf_property_t; + + + /*************************************************************************/ + /* */ + /* BDF font metric and glyph types. */ + /* */ + /*************************************************************************/ + + + typedef struct bdf_bbx_t_ + { + unsigned short width; + unsigned short height; + + short x_offset; + short y_offset; + + short ascent; + short descent; + + } bdf_bbx_t; + + + typedef struct bdf_glyph_t_ + { + char* name; /* Glyph name. */ + long encoding; /* Glyph encoding. */ + unsigned short swidth; /* Scalable width. */ + unsigned short dwidth; /* Device width. */ + bdf_bbx_t bbx; /* Glyph bounding box. */ + unsigned char* bitmap; /* Glyph bitmap. */ + unsigned long bpr; /* Number of bytes used per row. */ + unsigned short bytes; /* Number of bytes used for the bitmap. */ + + } bdf_glyph_t; + + + typedef struct _hashnode_ + { + const char* key; + size_t data; + + } _hashnode, *hashnode; + + + typedef struct hashtable_ + { + int limit; + int size; + int used; + hashnode* table; + + } hashtable; + + + typedef struct bdf_glyphlist_t_ + { + unsigned short pad; /* Pad to 4-byte boundary. */ + unsigned short bpp; /* Bits per pixel. */ + long start; /* Beginning encoding value of glyphs. */ + long end; /* Ending encoding value of glyphs. */ + bdf_glyph_t* glyphs; /* Glyphs themselves. */ + unsigned long glyphs_size; /* Glyph structures allocated. */ + unsigned long glyphs_used; /* Glyph structures used. */ + bdf_bbx_t bbx; /* Overall bounding box of glyphs. */ + + } bdf_glyphlist_t; + + + typedef struct bdf_font_t_ + { + char* name; /* Name of the font. */ + bdf_bbx_t bbx; /* Font bounding box. */ + + long point_size; /* Point size of the font. */ + unsigned long resolution_x; /* Font horizontal resolution. */ + unsigned long resolution_y; /* Font vertical resolution. */ + + int spacing; /* Font spacing value. */ + + unsigned short monowidth; /* Logical width for monowidth font. */ + + long default_char; /* Encoding of the default glyph. */ + + long font_ascent; /* Font ascent. */ + long font_descent; /* Font descent. */ + + unsigned long glyphs_size; /* Glyph structures allocated. */ + unsigned long glyphs_used; /* Glyph structures used. */ + bdf_glyph_t* glyphs; /* Glyphs themselves. */ + + unsigned long unencoded_size; /* Unencoded glyph struct. allocated. */ + unsigned long unencoded_used; /* Unencoded glyph struct. used. */ + bdf_glyph_t* unencoded; /* Unencoded glyphs themselves. */ + + unsigned long props_size; /* Font properties allocated. */ + unsigned long props_used; /* Font properties used. */ + bdf_property_t* props; /* Font properties themselves. */ + + char* comments; /* Font comments. */ + unsigned long comments_len; /* Length of comment string. */ + + bdf_glyphlist_t overflow; /* Storage used for glyph insertion. */ + + void* internal; /* Internal data for the font. */ + + /* The size of the next two arrays must be in sync with the */ + /* size of the `have' array in the `bdf_parse_t' structure. */ + unsigned long nmod[34816]; /* Bitmap indicating modified glyphs. */ + unsigned long umod[34816]; /* Bitmap indicating modified */ + /* unencoded glyphs. */ + unsigned short modified; /* Boolean indicating font modified. */ + unsigned short bpp; /* Bits per pixel. */ + + FT_Memory memory; + + bdf_property_t* user_props; + unsigned long nuser_props; + hashtable proptbl; + + } bdf_font_t; + + + /*************************************************************************/ + /* */ + /* Types for load/save callbacks. */ + /* */ + /*************************************************************************/ + + + /* Error codes. */ +#define BDF_MISSING_START -1 +#define BDF_MISSING_FONTNAME -2 +#define BDF_MISSING_SIZE -3 +#define BDF_MISSING_CHARS -4 +#define BDF_MISSING_STARTCHAR -5 +#define BDF_MISSING_ENCODING -6 +#define BDF_MISSING_BBX -7 + +#define BDF_OUT_OF_MEMORY -20 + +#define BDF_INVALID_LINE -100 + + + /*************************************************************************/ + /* */ + /* BDF font API. */ + /* */ + /*************************************************************************/ + + FT_LOCAL( FT_Error ) + bdf_load_font( FT_Stream stream, + FT_Memory memory, + bdf_options_t* opts, + bdf_font_t* *font ); + + FT_LOCAL( void ) + bdf_free_font( bdf_font_t* font ); + + FT_LOCAL( bdf_property_t * ) + bdf_get_property( char* name, + bdf_font_t* font ); + + FT_LOCAL( bdf_property_t * ) + bdf_get_font_property( bdf_font_t* font, + const char* name ); + + +FT_END_HEADER + + +#endif /* __BDF_H__ */ + + +/* END */ diff --git a/src/bdf/bdfdrivr.c b/src/bdf/bdfdrivr.c new file mode 100644 index 0000000..0edcc77 --- /dev/null +++ b/src/bdf/bdfdrivr.c @@ -0,0 +1,882 @@ +/* bdfdrivr.c + + FreeType font driver for bdf files + + Copyright (C) 2001-2008, 2011 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +#include <ft2build.h> + +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_OBJECTS_H +#include FT_BDF_H +#include FT_TRUETYPE_IDS_H + +#include FT_SERVICE_BDF_H +#include FT_SERVICE_XFREE86_NAME_H + +#include "bdf.h" +#include "bdfdrivr.h" + +#include "bdferror.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_bdfdriver + + + typedef struct BDF_CMapRec_ + { + FT_CMapRec cmap; + FT_ULong num_encodings; /* ftobjs.h: FT_CMap->clazz->size */ + BDF_encoding_el* encodings; + + } BDF_CMapRec, *BDF_CMap; + + + FT_CALLBACK_DEF( FT_Error ) + bdf_cmap_init( FT_CMap bdfcmap, + FT_Pointer init_data ) + { + BDF_CMap cmap = (BDF_CMap)bdfcmap; + BDF_Face face = (BDF_Face)FT_CMAP_FACE( cmap ); + FT_UNUSED( init_data ); + + + cmap->num_encodings = face->bdffont->glyphs_used; + cmap->encodings = face->en_table; + + return BDF_Err_Ok; + } + + + FT_CALLBACK_DEF( void ) + bdf_cmap_done( FT_CMap bdfcmap ) + { + BDF_CMap cmap = (BDF_CMap)bdfcmap; + + + cmap->encodings = NULL; + cmap->num_encodings = 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + bdf_cmap_char_index( FT_CMap bdfcmap, + FT_UInt32 charcode ) + { + BDF_CMap cmap = (BDF_CMap)bdfcmap; + BDF_encoding_el* encodings = cmap->encodings; + FT_ULong min, max, mid; /* num_encodings */ + FT_UShort result = 0; /* encodings->glyph */ + + + min = 0; + max = cmap->num_encodings; + + while ( min < max ) + { + FT_ULong code; + + + mid = ( min + max ) >> 1; + code = encodings[mid].enc; + + if ( charcode == code ) + { + /* increase glyph index by 1 -- */ + /* we reserve slot 0 for the undefined glyph */ + result = encodings[mid].glyph + 1; + break; + } + + if ( charcode < code ) + max = mid; + else + min = mid + 1; + } + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt ) + bdf_cmap_char_next( FT_CMap bdfcmap, + FT_UInt32 *acharcode ) + { + BDF_CMap cmap = (BDF_CMap)bdfcmap; + BDF_encoding_el* encodings = cmap->encodings; + FT_ULong min, max, mid; /* num_encodings */ + FT_UShort result = 0; /* encodings->glyph */ + FT_ULong charcode = *acharcode + 1; + + + min = 0; + max = cmap->num_encodings; + + while ( min < max ) + { + FT_ULong code; /* same as BDF_encoding_el.enc */ + + + mid = ( min + max ) >> 1; + code = encodings[mid].enc; + + if ( charcode == code ) + { + /* increase glyph index by 1 -- */ + /* we reserve slot 0 for the undefined glyph */ + result = encodings[mid].glyph + 1; + goto Exit; + } + + if ( charcode < code ) + max = mid; + else + min = mid + 1; + } + + charcode = 0; + if ( min < cmap->num_encodings ) + { + charcode = encodings[min].enc; + result = encodings[min].glyph + 1; + } + + Exit: + if ( charcode > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "bdf_cmap_char_next: charcode 0x%x > 32bit API" )); + *acharcode = 0; + /* XXX: result should be changed to indicate an overflow error */ + } + else + *acharcode = (FT_UInt32)charcode; + return result; + } + + + FT_CALLBACK_TABLE_DEF + const FT_CMap_ClassRec bdf_cmap_class = + { + sizeof ( BDF_CMapRec ), + bdf_cmap_init, + bdf_cmap_done, + bdf_cmap_char_index, + bdf_cmap_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + + static FT_Error + bdf_interpret_style( BDF_Face bdf ) + { + FT_Error error = BDF_Err_Ok; + FT_Face face = FT_FACE( bdf ); + FT_Memory memory = face->memory; + bdf_font_t* font = bdf->bdffont; + bdf_property_t* prop; + + char* strings[4] = { NULL, NULL, NULL, NULL }; + size_t nn, len, lengths[4]; + + + face->style_flags = 0; + + prop = bdf_get_font_property( font, (char *)"SLANT" ); + if ( prop && prop->format == BDF_ATOM && + prop->value.atom && + ( *(prop->value.atom) == 'O' || *(prop->value.atom) == 'o' || + *(prop->value.atom) == 'I' || *(prop->value.atom) == 'i' ) ) + { + face->style_flags |= FT_STYLE_FLAG_ITALIC; + strings[2] = ( *(prop->value.atom) == 'O' || *(prop->value.atom) == 'o' ) + ? (char *)"Oblique" + : (char *)"Italic"; + } + + prop = bdf_get_font_property( font, (char *)"WEIGHT_NAME" ); + if ( prop && prop->format == BDF_ATOM && + prop->value.atom && + ( *(prop->value.atom) == 'B' || *(prop->value.atom) == 'b' ) ) + { + face->style_flags |= FT_STYLE_FLAG_BOLD; + strings[1] = (char *)"Bold"; + } + + prop = bdf_get_font_property( font, (char *)"SETWIDTH_NAME" ); + if ( prop && prop->format == BDF_ATOM && + prop->value.atom && *(prop->value.atom) && + !( *(prop->value.atom) == 'N' || *(prop->value.atom) == 'n' ) ) + strings[3] = (char *)(prop->value.atom); + + prop = bdf_get_font_property( font, (char *)"ADD_STYLE_NAME" ); + if ( prop && prop->format == BDF_ATOM && + prop->value.atom && *(prop->value.atom) && + !( *(prop->value.atom) == 'N' || *(prop->value.atom) == 'n' ) ) + strings[0] = (char *)(prop->value.atom); + + len = 0; + + for ( len = 0, nn = 0; nn < 4; nn++ ) + { + lengths[nn] = 0; + if ( strings[nn] ) + { + lengths[nn] = ft_strlen( strings[nn] ); + len += lengths[nn] + 1; + } + } + + if ( len == 0 ) + { + strings[0] = (char *)"Regular"; + lengths[0] = ft_strlen( strings[0] ); + len = lengths[0] + 1; + } + + { + char* s; + + + if ( FT_ALLOC( face->style_name, len ) ) + return error; + + s = face->style_name; + + for ( nn = 0; nn < 4; nn++ ) + { + char* src = strings[nn]; + + + len = lengths[nn]; + + if ( src == NULL ) + continue; + + /* separate elements with a space */ + if ( s != face->style_name ) + *s++ = ' '; + + ft_memcpy( s, src, len ); + + /* need to convert spaces to dashes for */ + /* add_style_name and setwidth_name */ + if ( nn == 0 || nn == 3 ) + { + size_t mm; + + + for ( mm = 0; mm < len; mm++ ) + if ( s[mm] == ' ' ) + s[mm] = '-'; + } + + s += len; + } + *s = 0; + } + + return error; + } + + + FT_CALLBACK_DEF( void ) + BDF_Face_Done( FT_Face bdfface ) /* BDF_Face */ + { + BDF_Face face = (BDF_Face)bdfface; + FT_Memory memory; + + + if ( !face ) + return; + + memory = FT_FACE_MEMORY( face ); + + bdf_free_font( face->bdffont ); + + FT_FREE( face->en_table ); + + FT_FREE( face->charset_encoding ); + FT_FREE( face->charset_registry ); + FT_FREE( bdfface->family_name ); + FT_FREE( bdfface->style_name ); + + FT_FREE( bdfface->available_sizes ); + + FT_FREE( face->bdffont ); + } + + + FT_CALLBACK_DEF( FT_Error ) + BDF_Face_Init( FT_Stream stream, + FT_Face bdfface, /* BDF_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + FT_Error error = BDF_Err_Ok; + BDF_Face face = (BDF_Face)bdfface; + FT_Memory memory = FT_FACE_MEMORY( face ); + + bdf_font_t* font = NULL; + bdf_options_t options; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + FT_UNUSED( face_index ); + + + FT_TRACE2(( "BDF driver\n" )); + + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + + options.correct_metrics = 1; /* FZ XXX: options semantics */ + options.keep_unencoded = 1; + options.keep_comments = 0; + options.font_spacing = BDF_PROPORTIONAL; + + error = bdf_load_font( stream, memory, &options, &font ); + if ( error == BDF_Err_Missing_Startfont_Field ) + { + FT_TRACE2(( " not a BDF file\n" )); + goto Fail; + } + else if ( error ) + goto Exit; + + /* we have a bdf font: let's construct the face object */ + face->bdffont = font; + { + bdf_property_t* prop = NULL; + + + FT_TRACE4(( " number of glyphs: allocated %d (used %d)\n", + font->glyphs_size, + font->glyphs_used )); + FT_TRACE4(( " number of unencoded glyphs: allocated %d (used %d)\n", + font->unencoded_size, + font->unencoded_used )); + + bdfface->num_faces = 1; + bdfface->face_index = 0; + bdfface->face_flags = FT_FACE_FLAG_FIXED_SIZES | + FT_FACE_FLAG_HORIZONTAL | + FT_FACE_FLAG_FAST_GLYPHS; + + prop = bdf_get_font_property( font, "SPACING" ); + if ( prop && prop->format == BDF_ATOM && + prop->value.atom && + ( *(prop->value.atom) == 'M' || *(prop->value.atom) == 'm' || + *(prop->value.atom) == 'C' || *(prop->value.atom) == 'c' ) ) + bdfface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + /* FZ XXX: TO DO: FT_FACE_FLAGS_VERTICAL */ + /* FZ XXX: I need a font to implement this */ + + prop = bdf_get_font_property( font, "FAMILY_NAME" ); + if ( prop && prop->value.atom ) + { + if ( FT_STRDUP( bdfface->family_name, prop->value.atom ) ) + goto Exit; + } + else + bdfface->family_name = 0; + + if ( ( error = bdf_interpret_style( face ) ) != 0 ) + goto Exit; + + /* the number of glyphs (with one slot for the undefined glyph */ + /* at position 0 and all unencoded glyphs) */ + bdfface->num_glyphs = font->glyphs_size + 1; + + bdfface->num_fixed_sizes = 1; + if ( FT_NEW_ARRAY( bdfface->available_sizes, 1 ) ) + goto Exit; + + { + FT_Bitmap_Size* bsize = bdfface->available_sizes; + FT_Short resolution_x = 0, resolution_y = 0; + + + FT_MEM_ZERO( bsize, sizeof ( FT_Bitmap_Size ) ); + + bsize->height = (FT_Short)( font->font_ascent + font->font_descent ); + + prop = bdf_get_font_property( font, "AVERAGE_WIDTH" ); + if ( prop ) + bsize->width = (FT_Short)( ( prop->value.l + 5 ) / 10 ); + else + bsize->width = (FT_Short)( bsize->height * 2/3 ); + + prop = bdf_get_font_property( font, "POINT_SIZE" ); + if ( prop ) + /* convert from 722.7 decipoints to 72 points per inch */ + bsize->size = + (FT_Pos)( ( prop->value.l * 64 * 7200 + 36135L ) / 72270L ); + else + bsize->size = bsize->width << 6; + + prop = bdf_get_font_property( font, "PIXEL_SIZE" ); + if ( prop ) + bsize->y_ppem = (FT_Short)prop->value.l << 6; + + prop = bdf_get_font_property( font, "RESOLUTION_X" ); + if ( prop ) + resolution_x = (FT_Short)prop->value.l; + + prop = bdf_get_font_property( font, "RESOLUTION_Y" ); + if ( prop ) + resolution_y = (FT_Short)prop->value.l; + + if ( bsize->y_ppem == 0 ) + { + bsize->y_ppem = bsize->size; + if ( resolution_y ) + bsize->y_ppem = bsize->y_ppem * resolution_y / 72; + } + if ( resolution_x && resolution_y ) + bsize->x_ppem = bsize->y_ppem * resolution_x / resolution_y; + else + bsize->x_ppem = bsize->y_ppem; + } + + /* encoding table */ + { + bdf_glyph_t* cur = font->glyphs; + unsigned long n; + + + if ( FT_NEW_ARRAY( face->en_table, font->glyphs_size ) ) + goto Exit; + + face->default_glyph = 0; + for ( n = 0; n < font->glyphs_size; n++ ) + { + (face->en_table[n]).enc = cur[n].encoding; + FT_TRACE4(( " idx %d, val 0x%lX\n", n, cur[n].encoding )); + (face->en_table[n]).glyph = (FT_Short)n; + + if ( cur[n].encoding == font->default_char ) + { + if ( n < FT_UINT_MAX ) + face->default_glyph = (FT_UInt)n; + else + FT_TRACE1(( "BDF_Face_Init:" + " idx %d is too large for this system\n", n )); + } + } + } + + /* charmaps */ + { + bdf_property_t *charset_registry = 0, *charset_encoding = 0; + FT_Bool unicode_charmap = 0; + + + charset_registry = + bdf_get_font_property( font, "CHARSET_REGISTRY" ); + charset_encoding = + bdf_get_font_property( font, "CHARSET_ENCODING" ); + if ( charset_registry && charset_encoding ) + { + if ( charset_registry->format == BDF_ATOM && + charset_encoding->format == BDF_ATOM && + charset_registry->value.atom && + charset_encoding->value.atom ) + { + const char* s; + + + if ( FT_STRDUP( face->charset_encoding, + charset_encoding->value.atom ) || + FT_STRDUP( face->charset_registry, + charset_registry->value.atom ) ) + goto Exit; + + /* Uh, oh, compare first letters manually to avoid dependency */ + /* on locales. */ + s = face->charset_registry; + if ( ( s[0] == 'i' || s[0] == 'I' ) && + ( s[1] == 's' || s[1] == 'S' ) && + ( s[2] == 'o' || s[2] == 'O' ) ) + { + s += 3; + if ( !ft_strcmp( s, "10646" ) || + ( !ft_strcmp( s, "8859" ) && + !ft_strcmp( face->charset_encoding, "1" ) ) ) + unicode_charmap = 1; + } + + { + FT_CharMapRec charmap; + + + charmap.face = FT_FACE( face ); + charmap.encoding = FT_ENCODING_NONE; + /* initial platform/encoding should indicate unset status? */ + charmap.platform_id = TT_PLATFORM_APPLE_UNICODE; + charmap.encoding_id = TT_APPLE_ID_DEFAULT; + + if ( unicode_charmap ) + { + charmap.encoding = FT_ENCODING_UNICODE; + charmap.platform_id = TT_PLATFORM_MICROSOFT; + charmap.encoding_id = TT_MS_ID_UNICODE_CS; + } + + error = FT_CMap_New( &bdf_cmap_class, NULL, &charmap, NULL ); + +#if 0 + /* Select default charmap */ + if ( bdfface->num_charmaps ) + bdfface->charmap = bdfface->charmaps[0]; +#endif + } + + goto Exit; + } + } + + /* otherwise assume Adobe standard encoding */ + + { + FT_CharMapRec charmap; + + + charmap.face = FT_FACE( face ); + charmap.encoding = FT_ENCODING_ADOBE_STANDARD; + charmap.platform_id = TT_PLATFORM_ADOBE; + charmap.encoding_id = TT_ADOBE_ID_STANDARD; + + error = FT_CMap_New( &bdf_cmap_class, NULL, &charmap, NULL ); + + /* Select default charmap */ + if ( bdfface->num_charmaps ) + bdfface->charmap = bdfface->charmaps[0]; + } + } + } + + Exit: + return error; + + Fail: + BDF_Face_Done( bdfface ); + return BDF_Err_Unknown_File_Format; + } + + + FT_CALLBACK_DEF( FT_Error ) + BDF_Size_Select( FT_Size size, + FT_ULong strike_index ) + { + bdf_font_t* bdffont = ( (BDF_Face)size->face )->bdffont; + + + FT_Select_Metrics( size->face, strike_index ); + + size->metrics.ascender = bdffont->font_ascent << 6; + size->metrics.descender = -bdffont->font_descent << 6; + size->metrics.max_advance = bdffont->bbx.width << 6; + + return BDF_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + BDF_Size_Request( FT_Size size, + FT_Size_Request req ) + { + FT_Face face = size->face; + FT_Bitmap_Size* bsize = face->available_sizes; + bdf_font_t* bdffont = ( (BDF_Face)face )->bdffont; + FT_Error error = BDF_Err_Invalid_Pixel_Size; + FT_Long height; + + + height = FT_REQUEST_HEIGHT( req ); + height = ( height + 32 ) >> 6; + + switch ( req->type ) + { + case FT_SIZE_REQUEST_TYPE_NOMINAL: + if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) ) + error = BDF_Err_Ok; + break; + + case FT_SIZE_REQUEST_TYPE_REAL_DIM: + if ( height == ( bdffont->font_ascent + + bdffont->font_descent ) ) + error = BDF_Err_Ok; + break; + + default: + error = BDF_Err_Unimplemented_Feature; + break; + } + + if ( error ) + return error; + else + return BDF_Size_Select( size, 0 ); + } + + + + FT_CALLBACK_DEF( FT_Error ) + BDF_Glyph_Load( FT_GlyphSlot slot, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + BDF_Face bdf = (BDF_Face)FT_SIZE_FACE( size ); + FT_Face face = FT_FACE( bdf ); + FT_Error error = BDF_Err_Ok; + FT_Bitmap* bitmap = &slot->bitmap; + bdf_glyph_t glyph; + int bpp = bdf->bdffont->bpp; + + FT_UNUSED( load_flags ); + + + if ( !face || glyph_index >= (FT_UInt)face->num_glyphs ) + { + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + /* index 0 is the undefined glyph */ + if ( glyph_index == 0 ) + glyph_index = bdf->default_glyph; + else + glyph_index--; + + /* slot, bitmap => freetype, glyph => bdflib */ + glyph = bdf->bdffont->glyphs[glyph_index]; + + bitmap->rows = glyph.bbx.height; + bitmap->width = glyph.bbx.width; + if ( glyph.bpr > INT_MAX ) + FT_TRACE1(( "BDF_Glyph_Load: too large pitch %d is truncated\n", + glyph.bpr )); + bitmap->pitch = (int)glyph.bpr; /* same as FT_Bitmap.pitch */ + + /* note: we don't allocate a new array to hold the bitmap; */ + /* we can simply point to it */ + ft_glyphslot_set_bitmap( slot, glyph.bitmap ); + + switch ( bpp ) + { + case 1: + bitmap->pixel_mode = FT_PIXEL_MODE_MONO; + break; + case 2: + bitmap->pixel_mode = FT_PIXEL_MODE_GRAY2; + break; + case 4: + bitmap->pixel_mode = FT_PIXEL_MODE_GRAY4; + break; + case 8: + bitmap->pixel_mode = FT_PIXEL_MODE_GRAY; + bitmap->num_grays = 256; + break; + } + + slot->format = FT_GLYPH_FORMAT_BITMAP; + slot->bitmap_left = glyph.bbx.x_offset; + slot->bitmap_top = glyph.bbx.ascent; + + slot->metrics.horiAdvance = glyph.dwidth << 6; + slot->metrics.horiBearingX = glyph.bbx.x_offset << 6; + slot->metrics.horiBearingY = glyph.bbx.ascent << 6; + slot->metrics.width = bitmap->width << 6; + slot->metrics.height = bitmap->rows << 6; + + /* + * XXX DWIDTH1 and VVECTOR should be parsed and + * used here, provided such fonts do exist. + */ + ft_synthesize_vertical_metrics( &slot->metrics, + bdf->bdffont->bbx.height << 6 ); + + Exit: + return error; + } + + + /* + * + * BDF SERVICE + * + */ + + static FT_Error + bdf_get_bdf_property( BDF_Face face, + const char* prop_name, + BDF_PropertyRec *aproperty ) + { + bdf_property_t* prop; + + + FT_ASSERT( face && face->bdffont ); + + prop = bdf_get_font_property( face->bdffont, prop_name ); + if ( prop ) + { + switch ( prop->format ) + { + case BDF_ATOM: + aproperty->type = BDF_PROPERTY_TYPE_ATOM; + aproperty->u.atom = prop->value.atom; + break; + + case BDF_INTEGER: + if ( prop->value.l > 0x7FFFFFFFL || prop->value.l < ( -1 - 0x7FFFFFFFL ) ) + { + FT_TRACE1(( "bdf_get_bdf_property:" + " too large integer 0x%x is truncated\n" )); + } + aproperty->type = BDF_PROPERTY_TYPE_INTEGER; + aproperty->u.integer = (FT_Int32)prop->value.l; + break; + + case BDF_CARDINAL: + if ( prop->value.ul > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "bdf_get_bdf_property:" + " too large cardinal 0x%x is truncated\n" )); + } + aproperty->type = BDF_PROPERTY_TYPE_CARDINAL; + aproperty->u.cardinal = (FT_UInt32)prop->value.ul; + break; + + default: + goto Fail; + } + return 0; + } + + Fail: + return BDF_Err_Invalid_Argument; + } + + + static FT_Error + bdf_get_charset_id( BDF_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ) + { + *acharset_encoding = face->charset_encoding; + *acharset_registry = face->charset_registry; + + return 0; + } + + + static const FT_Service_BDFRec bdf_service_bdf = + { + (FT_BDF_GetCharsetIdFunc)bdf_get_charset_id, + (FT_BDF_GetPropertyFunc) bdf_get_bdf_property + }; + + + /* + * + * SERVICES LIST + * + */ + + static const FT_ServiceDescRec bdf_services[] = + { + { FT_SERVICE_ID_BDF, &bdf_service_bdf }, + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_BDF }, + { NULL, NULL } + }; + + + FT_CALLBACK_DEF( FT_Module_Interface ) + bdf_driver_requester( FT_Module module, + const char* name ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( bdf_services, name ); + } + + + + FT_CALLBACK_TABLE_DEF + const FT_Driver_ClassRec bdf_driver_class = + { + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_NO_OUTLINES, + sizeof ( FT_DriverRec ), + + "bdf", + 0x10000L, + 0x20000L, + + 0, + + 0, /* FT_Module_Constructor */ + 0, /* FT_Module_Destructor */ + bdf_driver_requester + }, + + sizeof ( BDF_FaceRec ), + sizeof ( FT_SizeRec ), + sizeof ( FT_GlyphSlotRec ), + + BDF_Face_Init, + BDF_Face_Done, + 0, /* FT_Size_InitFunc */ + 0, /* FT_Size_DoneFunc */ + 0, /* FT_Slot_InitFunc */ + 0, /* FT_Slot_DoneFunc */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + BDF_Glyph_Load, + + 0, /* FT_Face_GetKerningFunc */ + 0, /* FT_Face_AttachFunc */ + 0, /* FT_Face_GetAdvancesFunc */ + + BDF_Size_Request, + BDF_Size_Select + }; + + +/* END */ diff --git a/src/bdf/bdfdrivr.h b/src/bdf/bdfdrivr.h new file mode 100644 index 0000000..ca0dae5 --- /dev/null +++ b/src/bdf/bdfdrivr.h @@ -0,0 +1,80 @@ +/* bdfdrivr.h + + FreeType font driver for bdf fonts + + Copyright (C) 2001, 2002, 2003, 2004 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#ifndef __BDFDRIVR_H__ +#define __BDFDRIVR_H__ + +#include <ft2build.h> +#include FT_INTERNAL_DRIVER_H + +#include "bdf.h" + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + typedef struct BDF_encoding_el_ + { + FT_ULong enc; + FT_UShort glyph; + + } BDF_encoding_el; + + + typedef struct BDF_FaceRec_ + { + FT_FaceRec root; + + char* charset_encoding; + char* charset_registry; + + bdf_font_t* bdffont; + + BDF_encoding_el* en_table; + + FT_CharMap charmap_handle; + FT_CharMapRec charmap; /* a single charmap per face */ + + FT_UInt default_glyph; + + } BDF_FaceRec, *BDF_Face; + + + FT_EXPORT_VAR( const FT_Driver_ClassRec ) bdf_driver_class; + + +FT_END_HEADER + + +#endif /* __BDFDRIVR_H__ */ + + +/* END */ diff --git a/src/bdf/bdferror.h b/src/bdf/bdferror.h new file mode 100644 index 0000000..ea545ac --- /dev/null +++ b/src/bdf/bdferror.h @@ -0,0 +1,45 @@ +/* + * Copyright 2001, 2002, 2012 Francesco Zappa Nardelli + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT + * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + /*************************************************************************/ + /* */ + /* This file is used to define the BDF error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __BDFERROR_H__ +#define __BDFERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX BDF_Err_ +#define FT_ERR_BASE FT_Mod_Err_BDF + +#include FT_ERRORS_H + +#endif /* __BDFERROR_H__ */ + + +/* END */ diff --git a/src/bdf/bdflib.c b/src/bdf/bdflib.c new file mode 100644 index 0000000..b7b6857 --- /dev/null +++ b/src/bdf/bdflib.c @@ -0,0 +1,2613 @@ +/* + * Copyright 2000 Computing Research Labs, New Mexico State University + * Copyright 2001-2012 + * Francesco Zappa Nardelli + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT + * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + /*************************************************************************/ + /* */ + /* This file is based on bdf.c,v 1.22 2000/03/16 20:08:50 */ + /* */ + /* taken from Mark Leisher's xmbdfed package */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> + +#include FT_FREETYPE_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_OBJECTS_H + +#include "bdf.h" +#include "bdferror.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_bdflib + + + /*************************************************************************/ + /* */ + /* Default BDF font options. */ + /* */ + /*************************************************************************/ + + + static const bdf_options_t _bdf_opts = + { + 1, /* Correct metrics. */ + 1, /* Preserve unencoded glyphs. */ + 0, /* Preserve comments. */ + BDF_PROPORTIONAL /* Default spacing. */ + }; + + + /*************************************************************************/ + /* */ + /* Builtin BDF font properties. */ + /* */ + /*************************************************************************/ + + /* List of most properties that might appear in a font. Doesn't include */ + /* the RAW_* and AXIS_* properties in X11R6 polymorphic fonts. */ + + static const bdf_property_t _bdf_properties[] = + { + { (char *)"ADD_STYLE_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"AVERAGE_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"AVG_CAPITAL_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"AVG_LOWERCASE_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"CAP_HEIGHT", BDF_INTEGER, 1, { 0 } }, + { (char *)"CHARSET_COLLECTIONS", BDF_ATOM, 1, { 0 } }, + { (char *)"CHARSET_ENCODING", BDF_ATOM, 1, { 0 } }, + { (char *)"CHARSET_REGISTRY", BDF_ATOM, 1, { 0 } }, + { (char *)"COMMENT", BDF_ATOM, 1, { 0 } }, + { (char *)"COPYRIGHT", BDF_ATOM, 1, { 0 } }, + { (char *)"DEFAULT_CHAR", BDF_CARDINAL, 1, { 0 } }, + { (char *)"DESTINATION", BDF_CARDINAL, 1, { 0 } }, + { (char *)"DEVICE_FONT_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"END_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"FACE_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"FAMILY_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"FIGURE_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"FONT", BDF_ATOM, 1, { 0 } }, + { (char *)"FONTNAME_REGISTRY", BDF_ATOM, 1, { 0 } }, + { (char *)"FONT_ASCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"FONT_DESCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"FOUNDRY", BDF_ATOM, 1, { 0 } }, + { (char *)"FULL_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"ITALIC_ANGLE", BDF_INTEGER, 1, { 0 } }, + { (char *)"MAX_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"MIN_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"NORM_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"NOTICE", BDF_ATOM, 1, { 0 } }, + { (char *)"PIXEL_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"POINT_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"QUAD_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_ASCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_AVERAGE_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_AVG_CAPITAL_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_AVG_LOWERCASE_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_CAP_HEIGHT", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_DESCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_END_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_FIGURE_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_MAX_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_MIN_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_NORM_SPACE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_PIXEL_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_POINT_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_PIXELSIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_POINTSIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_QUAD_WIDTH", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SMALL_CAP_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_STRIKEOUT_ASCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_STRIKEOUT_DESCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SUBSCRIPT_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SUBSCRIPT_X", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SUBSCRIPT_Y", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SUPERSCRIPT_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SUPERSCRIPT_X", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_SUPERSCRIPT_Y", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_UNDERLINE_POSITION", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_UNDERLINE_THICKNESS", BDF_INTEGER, 1, { 0 } }, + { (char *)"RAW_X_HEIGHT", BDF_INTEGER, 1, { 0 } }, + { (char *)"RELATIVE_SETWIDTH", BDF_CARDINAL, 1, { 0 } }, + { (char *)"RELATIVE_WEIGHT", BDF_CARDINAL, 1, { 0 } }, + { (char *)"RESOLUTION", BDF_INTEGER, 1, { 0 } }, + { (char *)"RESOLUTION_X", BDF_CARDINAL, 1, { 0 } }, + { (char *)"RESOLUTION_Y", BDF_CARDINAL, 1, { 0 } }, + { (char *)"SETWIDTH_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"SLANT", BDF_ATOM, 1, { 0 } }, + { (char *)"SMALL_CAP_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"SPACING", BDF_ATOM, 1, { 0 } }, + { (char *)"STRIKEOUT_ASCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"STRIKEOUT_DESCENT", BDF_INTEGER, 1, { 0 } }, + { (char *)"SUBSCRIPT_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"SUBSCRIPT_X", BDF_INTEGER, 1, { 0 } }, + { (char *)"SUBSCRIPT_Y", BDF_INTEGER, 1, { 0 } }, + { (char *)"SUPERSCRIPT_SIZE", BDF_INTEGER, 1, { 0 } }, + { (char *)"SUPERSCRIPT_X", BDF_INTEGER, 1, { 0 } }, + { (char *)"SUPERSCRIPT_Y", BDF_INTEGER, 1, { 0 } }, + { (char *)"UNDERLINE_POSITION", BDF_INTEGER, 1, { 0 } }, + { (char *)"UNDERLINE_THICKNESS", BDF_INTEGER, 1, { 0 } }, + { (char *)"WEIGHT", BDF_CARDINAL, 1, { 0 } }, + { (char *)"WEIGHT_NAME", BDF_ATOM, 1, { 0 } }, + { (char *)"X_HEIGHT", BDF_INTEGER, 1, { 0 } }, + { (char *)"_MULE_BASELINE_OFFSET", BDF_INTEGER, 1, { 0 } }, + { (char *)"_MULE_RELATIVE_COMPOSE", BDF_INTEGER, 1, { 0 } }, + }; + + static const unsigned long + _num_bdf_properties = sizeof ( _bdf_properties ) / + sizeof ( _bdf_properties[0] ); + + + /* Auto correction messages. */ +#define ACMSG1 "FONT_ASCENT property missing. " \ + "Added `FONT_ASCENT %hd'.\n" +#define ACMSG2 "FONT_DESCENT property missing. " \ + "Added `FONT_DESCENT %hd'.\n" +#define ACMSG3 "Font width != actual width. Old: %hd New: %hd.\n" +#define ACMSG4 "Font left bearing != actual left bearing. " \ + "Old: %hd New: %hd.\n" +#define ACMSG5 "Font ascent != actual ascent. Old: %hd New: %hd.\n" +#define ACMSG6 "Font descent != actual descent. Old: %hd New: %hd.\n" +#define ACMSG7 "Font height != actual height. Old: %hd New: %hd.\n" +#define ACMSG8 "Glyph scalable width (SWIDTH) adjustments made.\n" +#define ACMSG9 "SWIDTH field missing at line %ld. Set automatically.\n" +#define ACMSG10 "DWIDTH field missing at line %ld. Set to glyph width.\n" +#define ACMSG11 "SIZE bits per pixel field adjusted to %hd.\n" +#define ACMSG12 "Duplicate encoding %ld (%s) changed to unencoded.\n" +#define ACMSG13 "Glyph %ld extra rows removed.\n" +#define ACMSG14 "Glyph %ld extra columns removed.\n" +#define ACMSG15 "Incorrect glyph count: %ld indicated but %ld found.\n" +#define ACMSG16 "Glyph %ld missing columns padded with zero bits.\n" + + /* Error messages. */ +#define ERRMSG1 "[line %ld] Missing `%s' line.\n" +#define ERRMSG2 "[line %ld] Font header corrupted or missing fields.\n" +#define ERRMSG3 "[line %ld] Font glyphs corrupted or missing fields.\n" +#define ERRMSG4 "[line %ld] BBX too big.\n" +#define ERRMSG5 "[line %ld] `%s' value too big.\n" +#define ERRMSG6 "[line %ld] Input line too long.\n" +#define ERRMSG7 "[line %ld] Font name too long.\n" +#define ERRMSG8 "[line %ld] Invalid `%s' value.\n" +#define ERRMSG9 "[line %ld] Invalid keyword.\n" + + /* Debug messages. */ +#define DBGMSG1 " [%6ld] %s" /* no \n */ +#define DBGMSG2 " (0x%lX)\n" + + + /*************************************************************************/ + /* */ + /* Hash table utilities for the properties. */ + /* */ + /*************************************************************************/ + + /* XXX: Replace this with FreeType's hash functions */ + + +#define INITIAL_HT_SIZE 241 + + typedef void + (*hash_free_func)( hashnode node ); + + static hashnode* + hash_bucket( const char* key, + hashtable* ht ) + { + const char* kp = key; + unsigned long res = 0; + hashnode* bp = ht->table, *ndp; + + + /* Mocklisp hash function. */ + while ( *kp ) + res = ( res << 5 ) - res + *kp++; + + ndp = bp + ( res % ht->size ); + while ( *ndp ) + { + kp = (*ndp)->key; + if ( kp[0] == key[0] && ft_strcmp( kp, key ) == 0 ) + break; + ndp--; + if ( ndp < bp ) + ndp = bp + ( ht->size - 1 ); + } + + return ndp; + } + + + static FT_Error + hash_rehash( hashtable* ht, + FT_Memory memory ) + { + hashnode* obp = ht->table, *bp, *nbp; + int i, sz = ht->size; + FT_Error error = BDF_Err_Ok; + + + ht->size <<= 1; + ht->limit = ht->size / 3; + + if ( FT_NEW_ARRAY( ht->table, ht->size ) ) + goto Exit; + + for ( i = 0, bp = obp; i < sz; i++, bp++ ) + { + if ( *bp ) + { + nbp = hash_bucket( (*bp)->key, ht ); + *nbp = *bp; + } + } + FT_FREE( obp ); + + Exit: + return error; + } + + + static FT_Error + hash_init( hashtable* ht, + FT_Memory memory ) + { + int sz = INITIAL_HT_SIZE; + FT_Error error = BDF_Err_Ok; + + + ht->size = sz; + ht->limit = sz / 3; + ht->used = 0; + + if ( FT_NEW_ARRAY( ht->table, sz ) ) + goto Exit; + + Exit: + return error; + } + + + static void + hash_free( hashtable* ht, + FT_Memory memory ) + { + if ( ht != 0 ) + { + int i, sz = ht->size; + hashnode* bp = ht->table; + + + for ( i = 0; i < sz; i++, bp++ ) + FT_FREE( *bp ); + + FT_FREE( ht->table ); + } + } + + + static FT_Error + hash_insert( char* key, + size_t data, + hashtable* ht, + FT_Memory memory ) + { + hashnode nn, *bp = hash_bucket( key, ht ); + FT_Error error = BDF_Err_Ok; + + + nn = *bp; + if ( !nn ) + { + if ( FT_NEW( nn ) ) + goto Exit; + *bp = nn; + + nn->key = key; + nn->data = data; + + if ( ht->used >= ht->limit ) + { + error = hash_rehash( ht, memory ); + if ( error ) + goto Exit; + } + ht->used++; + } + else + nn->data = data; + + Exit: + return error; + } + + + static hashnode + hash_lookup( const char* key, + hashtable* ht ) + { + hashnode *np = hash_bucket( key, ht ); + + + return *np; + } + + + /*************************************************************************/ + /* */ + /* Utility types and functions. */ + /* */ + /*************************************************************************/ + + + /* Function type for parsing lines of a BDF font. */ + + typedef FT_Error + (*_bdf_line_func_t)( char* line, + unsigned long linelen, + unsigned long lineno, + void* call_data, + void* client_data ); + + + /* List structure for splitting lines into fields. */ + + typedef struct _bdf_list_t_ + { + char** field; + unsigned long size; + unsigned long used; + FT_Memory memory; + + } _bdf_list_t; + + + /* Structure used while loading BDF fonts. */ + + typedef struct _bdf_parse_t_ + { + unsigned long flags; + unsigned long cnt; + unsigned long row; + + short minlb; + short maxlb; + short maxrb; + short maxas; + short maxds; + + short rbearing; + + char* glyph_name; + long glyph_enc; + + bdf_font_t* font; + bdf_options_t* opts; + + unsigned long have[34816]; /* must be in sync with `nmod' and `umod' */ + /* arrays from `bdf_font_t' structure */ + _bdf_list_t list; + + FT_Memory memory; + + } _bdf_parse_t; + + +#define setsbit( m, cc ) \ + ( m[(FT_Byte)(cc) >> 3] |= (FT_Byte)( 1 << ( (cc) & 7 ) ) ) +#define sbitset( m, cc ) \ + ( m[(FT_Byte)(cc) >> 3] & ( 1 << ( (cc) & 7 ) ) ) + + + static void + _bdf_list_init( _bdf_list_t* list, + FT_Memory memory ) + { + FT_ZERO( list ); + list->memory = memory; + } + + + static void + _bdf_list_done( _bdf_list_t* list ) + { + FT_Memory memory = list->memory; + + + if ( memory ) + { + FT_FREE( list->field ); + FT_ZERO( list ); + } + } + + + static FT_Error + _bdf_list_ensure( _bdf_list_t* list, + unsigned long num_items ) /* same as _bdf_list_t.used */ + { + FT_Error error = BDF_Err_Ok; + + + if ( num_items > list->size ) + { + unsigned long oldsize = list->size; /* same as _bdf_list_t.size */ + unsigned long newsize = oldsize + ( oldsize >> 1 ) + 5; + unsigned long bigsize = (unsigned long)( FT_INT_MAX / sizeof ( char* ) ); + FT_Memory memory = list->memory; + + + if ( oldsize == bigsize ) + { + error = BDF_Err_Out_Of_Memory; + goto Exit; + } + else if ( newsize < oldsize || newsize > bigsize ) + newsize = bigsize; + + if ( FT_RENEW_ARRAY( list->field, oldsize, newsize ) ) + goto Exit; + + list->size = newsize; + } + + Exit: + return error; + } + + + static void + _bdf_list_shift( _bdf_list_t* list, + unsigned long n ) + { + unsigned long i, u; + + + if ( list == 0 || list->used == 0 || n == 0 ) + return; + + if ( n >= list->used ) + { + list->used = 0; + return; + } + + for ( u = n, i = 0; u < list->used; i++, u++ ) + list->field[i] = list->field[u]; + list->used -= n; + } + + + /* An empty string for empty fields. */ + + static const char empty[1] = { 0 }; /* XXX eliminate this */ + + + static char * + _bdf_list_join( _bdf_list_t* list, + int c, + unsigned long *alen ) + { + unsigned long i, j; + char *fp, *dp; + + + *alen = 0; + + if ( list == 0 || list->used == 0 ) + return 0; + + dp = list->field[0]; + for ( i = j = 0; i < list->used; i++ ) + { + fp = list->field[i]; + while ( *fp ) + dp[j++] = *fp++; + + if ( i + 1 < list->used ) + dp[j++] = (char)c; + } + if ( dp != empty ) + dp[j] = 0; + + *alen = j; + return dp; + } + + + /* The code below ensures that we have at least 4 + 1 `field' */ + /* elements in `list' (which are possibly NULL) so that we */ + /* don't have to check the number of fields in most cases. */ + + static FT_Error + _bdf_list_split( _bdf_list_t* list, + char* separators, + char* line, + unsigned long linelen ) + { + int mult, final_empty; + char *sp, *ep, *end; + char seps[32]; + FT_Error error = BDF_Err_Ok; + + + /* Initialize the list. */ + list->used = 0; + if ( list->size ) + { + list->field[0] = (char*)empty; + list->field[1] = (char*)empty; + list->field[2] = (char*)empty; + list->field[3] = (char*)empty; + } + + /* If the line is empty, then simply return. */ + if ( linelen == 0 || line[0] == 0 ) + goto Exit; + + /* In the original code, if the `separators' parameter is NULL or */ + /* empty, the list is split into individual bytes. We don't need */ + /* this, so an error is signaled. */ + if ( separators == 0 || *separators == 0 ) + { + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + /* Prepare the separator bitmap. */ + FT_MEM_ZERO( seps, 32 ); + + /* If the very last character of the separator string is a plus, then */ + /* set the `mult' flag to indicate that multiple separators should be */ + /* collapsed into one. */ + for ( mult = 0, sp = separators; sp && *sp; sp++ ) + { + if ( *sp == '+' && *( sp + 1 ) == 0 ) + mult = 1; + else + setsbit( seps, *sp ); + } + + /* Break the line up into fields. */ + for ( final_empty = 0, sp = ep = line, end = sp + linelen; + sp < end && *sp; ) + { + /* Collect everything that is not a separator. */ + for ( ; *ep && !sbitset( seps, *ep ); ep++ ) + ; + + /* Resize the list if necessary. */ + if ( list->used == list->size ) + { + error = _bdf_list_ensure( list, list->used + 1 ); + if ( error ) + goto Exit; + } + + /* Assign the field appropriately. */ + list->field[list->used++] = ( ep > sp ) ? sp : (char*)empty; + + sp = ep; + + if ( mult ) + { + /* If multiple separators should be collapsed, do it now by */ + /* setting all the separator characters to 0. */ + for ( ; *ep && sbitset( seps, *ep ); ep++ ) + *ep = 0; + } + else if ( *ep != 0 ) + /* Don't collapse multiple separators by making them 0, so just */ + /* make the one encountered 0. */ + *ep++ = 0; + + final_empty = ( ep > sp && *ep == 0 ); + sp = ep; + } + + /* Finally, NULL-terminate the list. */ + if ( list->used + final_empty >= list->size ) + { + error = _bdf_list_ensure( list, list->used + final_empty + 1 ); + if ( error ) + goto Exit; + } + + if ( final_empty ) + list->field[list->used++] = (char*)empty; + + list->field[list->used] = 0; + + Exit: + return error; + } + + +#define NO_SKIP 256 /* this value cannot be stored in a 'char' */ + + + static FT_Error + _bdf_readstream( FT_Stream stream, + _bdf_line_func_t callback, + void* client_data, + unsigned long *lno ) + { + _bdf_line_func_t cb; + unsigned long lineno, buf_size; + int refill, hold, to_skip; + ptrdiff_t bytes, start, end, cursor, avail; + char* buf = 0; + FT_Memory memory = stream->memory; + FT_Error error = BDF_Err_Ok; + + + if ( callback == 0 ) + { + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + /* initial size and allocation of the input buffer */ + buf_size = 1024; + + if ( FT_NEW_ARRAY( buf, buf_size ) ) + goto Exit; + + cb = callback; + lineno = 1; + buf[0] = 0; + start = 0; + end = 0; + avail = 0; + cursor = 0; + refill = 1; + to_skip = NO_SKIP; + bytes = 0; /* make compiler happy */ + + for (;;) + { + if ( refill ) + { + bytes = (ptrdiff_t)FT_Stream_TryRead( + stream, (FT_Byte*)buf + cursor, + (FT_ULong)( buf_size - cursor ) ); + avail = cursor + bytes; + cursor = 0; + refill = 0; + } + + end = start; + + /* should we skip an optional character like \n or \r? */ + if ( start < avail && buf[start] == to_skip ) + { + start += 1; + to_skip = NO_SKIP; + continue; + } + + /* try to find the end of the line */ + while ( end < avail && buf[end] != '\n' && buf[end] != '\r' ) + end++; + + /* if we hit the end of the buffer, try shifting its content */ + /* or even resizing it */ + if ( end >= avail ) + { + if ( bytes == 0 ) /* last line in file doesn't end in \r or \n */ + break; /* ignore it then exit */ + + if ( start == 0 ) + { + /* this line is definitely too long; try resizing the input */ + /* buffer a bit to handle it. */ + FT_ULong new_size; + + + if ( buf_size >= 65536UL ) /* limit ourselves to 64KByte */ + { + FT_ERROR(( "_bdf_readstream: " ERRMSG6, lineno )); + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + new_size = buf_size * 2; + if ( FT_RENEW_ARRAY( buf, buf_size, new_size ) ) + goto Exit; + + cursor = buf_size; + buf_size = new_size; + } + else + { + bytes = avail - start; + + FT_MEM_COPY( buf, buf + start, bytes ); + + cursor = bytes; + avail -= bytes; + start = 0; + } + refill = 1; + continue; + } + + /* Temporarily NUL-terminate the line. */ + hold = buf[end]; + buf[end] = 0; + + /* XXX: Use encoding independent value for 0x1a */ + if ( buf[start] != '#' && buf[start] != 0x1a && end > start ) + { + error = (*cb)( buf + start, end - start, lineno, + (void*)&cb, client_data ); + /* Redo if we have encountered CHARS without properties. */ + if ( error == -1 ) + error = (*cb)( buf + start, end - start, lineno, + (void*)&cb, client_data ); + if ( error ) + break; + } + + lineno += 1; + buf[end] = (char)hold; + start = end + 1; + + if ( hold == '\n' ) + to_skip = '\r'; + else if ( hold == '\r' ) + to_skip = '\n'; + else + to_skip = NO_SKIP; + } + + *lno = lineno; + + Exit: + FT_FREE( buf ); + return error; + } + + + /* XXX: make this work with EBCDIC also */ + + static const unsigned char a2i[128] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + }; + + static const unsigned char odigits[32] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + + static const unsigned char ddigits[32] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + + static const unsigned char hdigits[32] = + { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03, + 0x7e, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }; + + +#define isdigok( m, d ) (m[(d) >> 3] & ( 1 << ( (d) & 7 ) ) ) + + + /* Routine to convert an ASCII string into an unsigned long integer. */ + static unsigned long + _bdf_atoul( char* s, + char** end, + int base ) + { + unsigned long v; + const unsigned char* dmap; + + + if ( s == 0 || *s == 0 ) + return 0; + + /* Make sure the radix is something recognizable. Default to 10. */ + switch ( base ) + { + case 8: + dmap = odigits; + break; + case 16: + dmap = hdigits; + break; + default: + base = 10; + dmap = ddigits; + break; + } + + /* Check for the special hex prefix. */ + if ( *s == '0' && + ( *( s + 1 ) == 'x' || *( s + 1 ) == 'X' ) ) + { + base = 16; + dmap = hdigits; + s += 2; + } + + for ( v = 0; isdigok( dmap, *s ); s++ ) + v = v * base + a2i[(int)*s]; + + if ( end != 0 ) + *end = s; + + return v; + } + + + /* Routine to convert an ASCII string into an signed long integer. */ + static long + _bdf_atol( char* s, + char** end, + int base ) + { + long v, neg; + const unsigned char* dmap; + + + if ( s == 0 || *s == 0 ) + return 0; + + /* Make sure the radix is something recognizable. Default to 10. */ + switch ( base ) + { + case 8: + dmap = odigits; + break; + case 16: + dmap = hdigits; + break; + default: + base = 10; + dmap = ddigits; + break; + } + + /* Check for a minus sign. */ + neg = 0; + if ( *s == '-' ) + { + s++; + neg = 1; + } + + /* Check for the special hex prefix. */ + if ( *s == '0' && + ( *( s + 1 ) == 'x' || *( s + 1 ) == 'X' ) ) + { + base = 16; + dmap = hdigits; + s += 2; + } + + for ( v = 0; isdigok( dmap, *s ); s++ ) + v = v * base + a2i[(int)*s]; + + if ( end != 0 ) + *end = s; + + return ( !neg ) ? v : -v; + } + + + /* Routine to convert an ASCII string into an signed short integer. */ + static short + _bdf_atos( char* s, + char** end, + int base ) + { + short v, neg; + const unsigned char* dmap; + + + if ( s == 0 || *s == 0 ) + return 0; + + /* Make sure the radix is something recognizable. Default to 10. */ + switch ( base ) + { + case 8: + dmap = odigits; + break; + case 16: + dmap = hdigits; + break; + default: + base = 10; + dmap = ddigits; + break; + } + + /* Check for a minus. */ + neg = 0; + if ( *s == '-' ) + { + s++; + neg = 1; + } + + /* Check for the special hex prefix. */ + if ( *s == '0' && + ( *( s + 1 ) == 'x' || *( s + 1 ) == 'X' ) ) + { + base = 16; + dmap = hdigits; + s += 2; + } + + for ( v = 0; isdigok( dmap, *s ); s++ ) + v = (short)( v * base + a2i[(int)*s] ); + + if ( end != 0 ) + *end = s; + + return (short)( ( !neg ) ? v : -v ); + } + + + /* Routine to compare two glyphs by encoding so they can be sorted. */ + static int + by_encoding( const void* a, + const void* b ) + { + bdf_glyph_t *c1, *c2; + + + c1 = (bdf_glyph_t *)a; + c2 = (bdf_glyph_t *)b; + + if ( c1->encoding < c2->encoding ) + return -1; + + if ( c1->encoding > c2->encoding ) + return 1; + + return 0; + } + + + static FT_Error + bdf_create_property( char* name, + int format, + bdf_font_t* font ) + { + size_t n; + bdf_property_t* p; + FT_Memory memory = font->memory; + FT_Error error = BDF_Err_Ok; + + + /* First check whether the property has */ + /* already been added or not. If it has, then */ + /* simply ignore it. */ + if ( hash_lookup( name, &(font->proptbl) ) ) + goto Exit; + + if ( FT_RENEW_ARRAY( font->user_props, + font->nuser_props, + font->nuser_props + 1 ) ) + goto Exit; + + p = font->user_props + font->nuser_props; + FT_ZERO( p ); + + n = ft_strlen( name ) + 1; + if ( n > FT_ULONG_MAX ) + return BDF_Err_Invalid_Argument; + + if ( FT_NEW_ARRAY( p->name, n ) ) + goto Exit; + + FT_MEM_COPY( (char *)p->name, name, n ); + + p->format = format; + p->builtin = 0; + + n = _num_bdf_properties + font->nuser_props; + + error = hash_insert( p->name, n, &(font->proptbl), memory ); + if ( error ) + goto Exit; + + font->nuser_props++; + + Exit: + return error; + } + + + FT_LOCAL_DEF( bdf_property_t * ) + bdf_get_property( char* name, + bdf_font_t* font ) + { + hashnode hn; + size_t propid; + + + if ( name == 0 || *name == 0 ) + return 0; + + if ( ( hn = hash_lookup( name, &(font->proptbl) ) ) == 0 ) + return 0; + + propid = hn->data; + if ( propid >= _num_bdf_properties ) + return font->user_props + ( propid - _num_bdf_properties ); + + return (bdf_property_t*)_bdf_properties + propid; + } + + + /*************************************************************************/ + /* */ + /* BDF font file parsing flags and functions. */ + /* */ + /*************************************************************************/ + + + /* Parse flags. */ + +#define _BDF_START 0x0001 +#define _BDF_FONT_NAME 0x0002 +#define _BDF_SIZE 0x0004 +#define _BDF_FONT_BBX 0x0008 +#define _BDF_PROPS 0x0010 +#define _BDF_GLYPHS 0x0020 +#define _BDF_GLYPH 0x0040 +#define _BDF_ENCODING 0x0080 +#define _BDF_SWIDTH 0x0100 +#define _BDF_DWIDTH 0x0200 +#define _BDF_BBX 0x0400 +#define _BDF_BITMAP 0x0800 + +#define _BDF_SWIDTH_ADJ 0x1000 + +#define _BDF_GLYPH_BITS ( _BDF_GLYPH | \ + _BDF_ENCODING | \ + _BDF_SWIDTH | \ + _BDF_DWIDTH | \ + _BDF_BBX | \ + _BDF_BITMAP ) + +#define _BDF_GLYPH_WIDTH_CHECK 0x40000000UL +#define _BDF_GLYPH_HEIGHT_CHECK 0x80000000UL + + + static FT_Error + _bdf_add_comment( bdf_font_t* font, + char* comment, + unsigned long len ) + { + char* cp; + FT_Memory memory = font->memory; + FT_Error error = BDF_Err_Ok; + + + if ( FT_RENEW_ARRAY( font->comments, + font->comments_len, + font->comments_len + len + 1 ) ) + goto Exit; + + cp = font->comments + font->comments_len; + + FT_MEM_COPY( cp, comment, len ); + cp[len] = '\n'; + + font->comments_len += len + 1; + + Exit: + return error; + } + + + /* Set the spacing from the font name if it exists, or set it to the */ + /* default specified in the options. */ + static FT_Error + _bdf_set_default_spacing( bdf_font_t* font, + bdf_options_t* opts, + unsigned long lineno ) + { + size_t len; + char name[256]; + _bdf_list_t list; + FT_Memory memory; + FT_Error error = BDF_Err_Ok; + + + if ( font == 0 || font->name == 0 || font->name[0] == 0 ) + { + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + memory = font->memory; + + _bdf_list_init( &list, memory ); + + font->spacing = opts->font_spacing; + + len = ft_strlen( font->name ) + 1; + /* Limit ourselves to 256 characters in the font name. */ + if ( len >= 256 ) + { + FT_ERROR(( "_bdf_set_default_spacing: " ERRMSG7, lineno )); + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + FT_MEM_COPY( name, font->name, len ); + + error = _bdf_list_split( &list, (char *)"-", name, len ); + if ( error ) + goto Fail; + + if ( list.used == 15 ) + { + switch ( list.field[11][0] ) + { + case 'C': + case 'c': + font->spacing = BDF_CHARCELL; + break; + case 'M': + case 'm': + font->spacing = BDF_MONOWIDTH; + break; + case 'P': + case 'p': + font->spacing = BDF_PROPORTIONAL; + break; + } + } + + Fail: + _bdf_list_done( &list ); + + Exit: + return error; + } + + + /* Determine whether the property is an atom or not. If it is, then */ + /* clean it up so the double quotes are removed if they exist. */ + static int + _bdf_is_atom( char* line, + unsigned long linelen, + char** name, + char** value, + bdf_font_t* font ) + { + int hold; + char *sp, *ep; + bdf_property_t* p; + + + *name = sp = ep = line; + + while ( *ep && *ep != ' ' && *ep != '\t' ) + ep++; + + hold = -1; + if ( *ep ) + { + hold = *ep; + *ep = 0; + } + + p = bdf_get_property( sp, font ); + + /* Restore the character that was saved before any return can happen. */ + if ( hold != -1 ) + *ep = (char)hold; + + /* If the property exists and is not an atom, just return here. */ + if ( p && p->format != BDF_ATOM ) + return 0; + + /* The property is an atom. Trim all leading and trailing whitespace */ + /* and double quotes for the atom value. */ + sp = ep; + ep = line + linelen; + + /* Trim the leading whitespace if it exists. */ + if ( *sp ) + *sp++ = 0; + while ( *sp && + ( *sp == ' ' || *sp == '\t' ) ) + sp++; + + /* Trim the leading double quote if it exists. */ + if ( *sp == '"' ) + sp++; + *value = sp; + + /* Trim the trailing whitespace if it exists. */ + while ( ep > sp && + ( *( ep - 1 ) == ' ' || *( ep - 1 ) == '\t' ) ) + *--ep = 0; + + /* Trim the trailing double quote if it exists. */ + if ( ep > sp && *( ep - 1 ) == '"' ) + *--ep = 0; + + return 1; + } + + + static FT_Error + _bdf_add_property( bdf_font_t* font, + char* name, + char* value, + unsigned long lineno ) + { + size_t propid; + hashnode hn; + bdf_property_t *prop, *fp; + FT_Memory memory = font->memory; + FT_Error error = BDF_Err_Ok; + + + /* First, check whether the property already exists in the font. */ + if ( ( hn = hash_lookup( name, (hashtable *)font->internal ) ) != 0 ) + { + /* The property already exists in the font, so simply replace */ + /* the value of the property with the current value. */ + fp = font->props + hn->data; + + switch ( fp->format ) + { + case BDF_ATOM: + /* Delete the current atom if it exists. */ + FT_FREE( fp->value.atom ); + + if ( value && value[0] != 0 ) + { + if ( FT_STRDUP( fp->value.atom, value ) ) + goto Exit; + } + break; + + case BDF_INTEGER: + fp->value.l = _bdf_atol( value, 0, 10 ); + break; + + case BDF_CARDINAL: + fp->value.ul = _bdf_atoul( value, 0, 10 ); + break; + + default: + ; + } + + goto Exit; + } + + /* See whether this property type exists yet or not. */ + /* If not, create it. */ + hn = hash_lookup( name, &(font->proptbl) ); + if ( hn == 0 ) + { + error = bdf_create_property( name, BDF_ATOM, font ); + if ( error ) + goto Exit; + hn = hash_lookup( name, &(font->proptbl) ); + } + + /* Allocate another property if this is overflow. */ + if ( font->props_used == font->props_size ) + { + if ( font->props_size == 0 ) + { + if ( FT_NEW_ARRAY( font->props, 1 ) ) + goto Exit; + } + else + { + if ( FT_RENEW_ARRAY( font->props, + font->props_size, + font->props_size + 1 ) ) + goto Exit; + } + + fp = font->props + font->props_size; + FT_MEM_ZERO( fp, sizeof ( bdf_property_t ) ); + font->props_size++; + } + + propid = hn->data; + if ( propid >= _num_bdf_properties ) + prop = font->user_props + ( propid - _num_bdf_properties ); + else + prop = (bdf_property_t*)_bdf_properties + propid; + + fp = font->props + font->props_used; + + fp->name = prop->name; + fp->format = prop->format; + fp->builtin = prop->builtin; + + switch ( prop->format ) + { + case BDF_ATOM: + fp->value.atom = 0; + if ( value != 0 && value[0] ) + { + if ( FT_STRDUP( fp->value.atom, value ) ) + goto Exit; + } + break; + + case BDF_INTEGER: + fp->value.l = _bdf_atol( value, 0, 10 ); + break; + + case BDF_CARDINAL: + fp->value.ul = _bdf_atoul( value, 0, 10 ); + break; + } + + /* If the property happens to be a comment, then it doesn't need */ + /* to be added to the internal hash table. */ + if ( ft_memcmp( name, "COMMENT", 7 ) != 0 ) + { + /* Add the property to the font property table. */ + error = hash_insert( fp->name, + font->props_used, + (hashtable *)font->internal, + memory ); + if ( error ) + goto Exit; + } + + font->props_used++; + + /* Some special cases need to be handled here. The DEFAULT_CHAR */ + /* property needs to be located if it exists in the property list, the */ + /* FONT_ASCENT and FONT_DESCENT need to be assigned if they are */ + /* present, and the SPACING property should override the default */ + /* spacing. */ + if ( ft_memcmp( name, "DEFAULT_CHAR", 12 ) == 0 ) + font->default_char = fp->value.l; + else if ( ft_memcmp( name, "FONT_ASCENT", 11 ) == 0 ) + font->font_ascent = fp->value.l; + else if ( ft_memcmp( name, "FONT_DESCENT", 12 ) == 0 ) + font->font_descent = fp->value.l; + else if ( ft_memcmp( name, "SPACING", 7 ) == 0 ) + { + if ( !fp->value.atom ) + { + FT_ERROR(( "_bdf_add_property: " ERRMSG8, lineno, "SPACING" )); + error = BDF_Err_Invalid_File_Format; + goto Exit; + } + + if ( fp->value.atom[0] == 'p' || fp->value.atom[0] == 'P' ) + font->spacing = BDF_PROPORTIONAL; + else if ( fp->value.atom[0] == 'm' || fp->value.atom[0] == 'M' ) + font->spacing = BDF_MONOWIDTH; + else if ( fp->value.atom[0] == 'c' || fp->value.atom[0] == 'C' ) + font->spacing = BDF_CHARCELL; + } + + Exit: + return error; + } + + + static const unsigned char nibble_mask[8] = + { + 0xFF, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE + }; + + + /* Actually parse the glyph info and bitmaps. */ + static FT_Error + _bdf_parse_glyphs( char* line, + unsigned long linelen, + unsigned long lineno, + void* call_data, + void* client_data ) + { + int c, mask_index; + char* s; + unsigned char* bp; + unsigned long i, slen, nibbles; + + _bdf_parse_t* p; + bdf_glyph_t* glyph; + bdf_font_t* font; + + FT_Memory memory; + FT_Error error = BDF_Err_Ok; + + FT_UNUSED( call_data ); + FT_UNUSED( lineno ); /* only used in debug mode */ + + + p = (_bdf_parse_t *)client_data; + + font = p->font; + memory = font->memory; + + /* Check for a comment. */ + if ( ft_memcmp( line, "COMMENT", 7 ) == 0 ) + { + linelen -= 7; + + s = line + 7; + if ( *s != 0 ) + { + s++; + linelen--; + } + error = _bdf_add_comment( p->font, s, linelen ); + goto Exit; + } + + /* The very first thing expected is the number of glyphs. */ + if ( !( p->flags & _BDF_GLYPHS ) ) + { + if ( ft_memcmp( line, "CHARS", 5 ) != 0 ) + { + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "CHARS" )); + error = BDF_Err_Missing_Chars_Field; + goto Exit; + } + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + p->cnt = font->glyphs_size = _bdf_atoul( p->list.field[1], 0, 10 ); + + /* Make sure the number of glyphs is non-zero. */ + if ( p->cnt == 0 ) + font->glyphs_size = 64; + + /* Limit ourselves to 1,114,112 glyphs in the font (this is the */ + /* number of code points available in Unicode). */ + if ( p->cnt >= 0x110000UL ) + { + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG5, lineno, "CHARS" )); + error = BDF_Err_Invalid_Argument; + goto Exit; + } + + if ( FT_NEW_ARRAY( font->glyphs, font->glyphs_size ) ) + goto Exit; + + p->flags |= _BDF_GLYPHS; + + goto Exit; + } + + /* Check for the ENDFONT field. */ + if ( ft_memcmp( line, "ENDFONT", 7 ) == 0 ) + { + /* Sort the glyphs by encoding. */ + ft_qsort( (char *)font->glyphs, + font->glyphs_used, + sizeof ( bdf_glyph_t ), + by_encoding ); + + p->flags &= ~_BDF_START; + + goto Exit; + } + + /* Check for the ENDCHAR field. */ + if ( ft_memcmp( line, "ENDCHAR", 7 ) == 0 ) + { + p->glyph_enc = 0; + p->flags &= ~_BDF_GLYPH_BITS; + + goto Exit; + } + + /* Check whether a glyph is being scanned but should be */ + /* ignored because it is an unencoded glyph. */ + if ( ( p->flags & _BDF_GLYPH ) && + p->glyph_enc == -1 && + p->opts->keep_unencoded == 0 ) + goto Exit; + + /* Check for the STARTCHAR field. */ + if ( ft_memcmp( line, "STARTCHAR", 9 ) == 0 ) + { + /* Set the character name in the parse info first until the */ + /* encoding can be checked for an unencoded character. */ + FT_FREE( p->glyph_name ); + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + _bdf_list_shift( &p->list, 1 ); + + s = _bdf_list_join( &p->list, ' ', &slen ); + + if ( !s ) + { + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG8, lineno, "STARTCHAR" )); + error = BDF_Err_Invalid_File_Format; + goto Exit; + } + + if ( FT_NEW_ARRAY( p->glyph_name, slen + 1 ) ) + goto Exit; + + FT_MEM_COPY( p->glyph_name, s, slen + 1 ); + + p->flags |= _BDF_GLYPH; + + FT_TRACE4(( DBGMSG1, lineno, s )); + + goto Exit; + } + + /* Check for the ENCODING field. */ + if ( ft_memcmp( line, "ENCODING", 8 ) == 0 ) + { + if ( !( p->flags & _BDF_GLYPH ) ) + { + /* Missing STARTCHAR field. */ + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "STARTCHAR" )); + error = BDF_Err_Missing_Startchar_Field; + goto Exit; + } + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + p->glyph_enc = _bdf_atol( p->list.field[1], 0, 10 ); + + /* Normalize negative encoding values. The specification only */ + /* allows -1, but we can be more generous here. */ + if ( p->glyph_enc < -1 ) + p->glyph_enc = -1; + + /* Check for alternative encoding format. */ + if ( p->glyph_enc == -1 && p->list.used > 2 ) + p->glyph_enc = _bdf_atol( p->list.field[2], 0, 10 ); + + FT_TRACE4(( DBGMSG2, p->glyph_enc )); + + /* Check that the encoding is in the Unicode range because */ + /* otherwise p->have (a bitmap with static size) overflows. */ + if ( p->glyph_enc > 0 && + (size_t)p->glyph_enc >= sizeof ( p->have ) * 8 ) + { + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG5, lineno, "ENCODING" )); + error = BDF_Err_Invalid_File_Format; + goto Exit; + } + + /* Check whether this encoding has already been encountered. */ + /* If it has then change it to unencoded so it gets added if */ + /* indicated. */ + if ( p->glyph_enc >= 0 ) + { + if ( _bdf_glyph_modified( p->have, p->glyph_enc ) ) + { + /* Emit a message saying a glyph has been moved to the */ + /* unencoded area. */ + FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG12, + p->glyph_enc, p->glyph_name )); + p->glyph_enc = -1; + font->modified = 1; + } + else + _bdf_set_glyph_modified( p->have, p->glyph_enc ); + } + + if ( p->glyph_enc >= 0 ) + { + /* Make sure there are enough glyphs allocated in case the */ + /* number of characters happen to be wrong. */ + if ( font->glyphs_used == font->glyphs_size ) + { + if ( FT_RENEW_ARRAY( font->glyphs, + font->glyphs_size, + font->glyphs_size + 64 ) ) + goto Exit; + + font->glyphs_size += 64; + } + + glyph = font->glyphs + font->glyphs_used++; + glyph->name = p->glyph_name; + glyph->encoding = p->glyph_enc; + + /* Reset the initial glyph info. */ + p->glyph_name = 0; + } + else + { + /* Unencoded glyph. Check whether it should */ + /* be added or not. */ + if ( p->opts->keep_unencoded != 0 ) + { + /* Allocate the next unencoded glyph. */ + if ( font->unencoded_used == font->unencoded_size ) + { + if ( FT_RENEW_ARRAY( font->unencoded , + font->unencoded_size, + font->unencoded_size + 4 ) ) + goto Exit; + + font->unencoded_size += 4; + } + + glyph = font->unencoded + font->unencoded_used; + glyph->name = p->glyph_name; + glyph->encoding = font->unencoded_used++; + } + else + /* Free up the glyph name if the unencoded shouldn't be */ + /* kept. */ + FT_FREE( p->glyph_name ); + + p->glyph_name = 0; + } + + /* Clear the flags that might be added when width and height are */ + /* checked for consistency. */ + p->flags &= ~( _BDF_GLYPH_WIDTH_CHECK | _BDF_GLYPH_HEIGHT_CHECK ); + + p->flags |= _BDF_ENCODING; + + goto Exit; + } + + /* Point at the glyph being constructed. */ + if ( p->glyph_enc == -1 ) + glyph = font->unencoded + ( font->unencoded_used - 1 ); + else + glyph = font->glyphs + ( font->glyphs_used - 1 ); + + /* Check whether a bitmap is being constructed. */ + if ( p->flags & _BDF_BITMAP ) + { + /* If there are more rows than are specified in the glyph metrics, */ + /* ignore the remaining lines. */ + if ( p->row >= (unsigned long)glyph->bbx.height ) + { + if ( !( p->flags & _BDF_GLYPH_HEIGHT_CHECK ) ) + { + FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG13, glyph->encoding )); + p->flags |= _BDF_GLYPH_HEIGHT_CHECK; + font->modified = 1; + } + + goto Exit; + } + + /* Only collect the number of nibbles indicated by the glyph */ + /* metrics. If there are more columns, they are simply ignored. */ + nibbles = glyph->bpr << 1; + bp = glyph->bitmap + p->row * glyph->bpr; + + for ( i = 0; i < nibbles; i++ ) + { + c = line[i]; + if ( !isdigok( hdigits, c ) ) + break; + *bp = (FT_Byte)( ( *bp << 4 ) + a2i[c] ); + if ( i + 1 < nibbles && ( i & 1 ) ) + *++bp = 0; + } + + /* If any line has not enough columns, */ + /* indicate they have been padded with zero bits. */ + if ( i < nibbles && + !( p->flags & _BDF_GLYPH_WIDTH_CHECK ) ) + { + FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG16, glyph->encoding )); + p->flags |= _BDF_GLYPH_WIDTH_CHECK; + font->modified = 1; + } + + /* Remove possible garbage at the right. */ + mask_index = ( glyph->bbx.width * p->font->bpp ) & 7; + if ( glyph->bbx.width ) + *bp &= nibble_mask[mask_index]; + + /* If any line has extra columns, indicate they have been removed. */ + if ( i == nibbles && + isdigok( hdigits, line[nibbles] ) && + !( p->flags & _BDF_GLYPH_WIDTH_CHECK ) ) + { + FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG14, glyph->encoding )); + p->flags |= _BDF_GLYPH_WIDTH_CHECK; + font->modified = 1; + } + + p->row++; + goto Exit; + } + + /* Expect the SWIDTH (scalable width) field next. */ + if ( ft_memcmp( line, "SWIDTH", 6 ) == 0 ) + { + if ( !( p->flags & _BDF_ENCODING ) ) + goto Missing_Encoding; + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + glyph->swidth = (unsigned short)_bdf_atoul( p->list.field[1], 0, 10 ); + p->flags |= _BDF_SWIDTH; + + goto Exit; + } + + /* Expect the DWIDTH (scalable width) field next. */ + if ( ft_memcmp( line, "DWIDTH", 6 ) == 0 ) + { + if ( !( p->flags & _BDF_ENCODING ) ) + goto Missing_Encoding; + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + glyph->dwidth = (unsigned short)_bdf_atoul( p->list.field[1], 0, 10 ); + + if ( !( p->flags & _BDF_SWIDTH ) ) + { + /* Missing SWIDTH field. Emit an auto correction message and set */ + /* the scalable width from the device width. */ + FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG9, lineno )); + + glyph->swidth = (unsigned short)FT_MulDiv( + glyph->dwidth, 72000L, + (FT_Long)( font->point_size * + font->resolution_x ) ); + } + + p->flags |= _BDF_DWIDTH; + goto Exit; + } + + /* Expect the BBX field next. */ + if ( ft_memcmp( line, "BBX", 3 ) == 0 ) + { + if ( !( p->flags & _BDF_ENCODING ) ) + goto Missing_Encoding; + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + glyph->bbx.width = _bdf_atos( p->list.field[1], 0, 10 ); + glyph->bbx.height = _bdf_atos( p->list.field[2], 0, 10 ); + glyph->bbx.x_offset = _bdf_atos( p->list.field[3], 0, 10 ); + glyph->bbx.y_offset = _bdf_atos( p->list.field[4], 0, 10 ); + + /* Generate the ascent and descent of the character. */ + glyph->bbx.ascent = (short)( glyph->bbx.height + glyph->bbx.y_offset ); + glyph->bbx.descent = (short)( -glyph->bbx.y_offset ); + + /* Determine the overall font bounding box as the characters are */ + /* loaded so corrections can be done later if indicated. */ + p->maxas = (short)FT_MAX( glyph->bbx.ascent, p->maxas ); + p->maxds = (short)FT_MAX( glyph->bbx.descent, p->maxds ); + + p->rbearing = (short)( glyph->bbx.width + glyph->bbx.x_offset ); + + p->maxrb = (short)FT_MAX( p->rbearing, p->maxrb ); + p->minlb = (short)FT_MIN( glyph->bbx.x_offset, p->minlb ); + p->maxlb = (short)FT_MAX( glyph->bbx.x_offset, p->maxlb ); + + if ( !( p->flags & _BDF_DWIDTH ) ) + { + /* Missing DWIDTH field. Emit an auto correction message and set */ + /* the device width to the glyph width. */ + FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG10, lineno )); + glyph->dwidth = glyph->bbx.width; + } + + /* If the BDF_CORRECT_METRICS flag is set, then adjust the SWIDTH */ + /* value if necessary. */ + if ( p->opts->correct_metrics != 0 ) + { + /* Determine the point size of the glyph. */ + unsigned short sw = (unsigned short)FT_MulDiv( + glyph->dwidth, 72000L, + (FT_Long)( font->point_size * + font->resolution_x ) ); + + + if ( sw != glyph->swidth ) + { + glyph->swidth = sw; + + if ( p->glyph_enc == -1 ) + _bdf_set_glyph_modified( font->umod, + font->unencoded_used - 1 ); + else + _bdf_set_glyph_modified( font->nmod, glyph->encoding ); + + p->flags |= _BDF_SWIDTH_ADJ; + font->modified = 1; + } + } + + p->flags |= _BDF_BBX; + goto Exit; + } + + /* And finally, gather up the bitmap. */ + if ( ft_memcmp( line, "BITMAP", 6 ) == 0 ) + { + unsigned long bitmap_size; + + + if ( !( p->flags & _BDF_BBX ) ) + { + /* Missing BBX field. */ + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "BBX" )); + error = BDF_Err_Missing_Bbx_Field; + goto Exit; + } + + /* Allocate enough space for the bitmap. */ + glyph->bpr = ( glyph->bbx.width * p->font->bpp + 7 ) >> 3; + + bitmap_size = glyph->bpr * glyph->bbx.height; + if ( glyph->bpr > 0xFFFFU || bitmap_size > 0xFFFFU ) + { + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG4, lineno )); + error = BDF_Err_Bbx_Too_Big; + goto Exit; + } + else + glyph->bytes = (unsigned short)bitmap_size; + + if ( FT_NEW_ARRAY( glyph->bitmap, glyph->bytes ) ) + goto Exit; + + p->row = 0; + p->flags |= _BDF_BITMAP; + + goto Exit; + } + + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG9, lineno )); + error = BDF_Err_Invalid_File_Format; + goto Exit; + + Missing_Encoding: + /* Missing ENCODING field. */ + FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "ENCODING" )); + error = BDF_Err_Missing_Encoding_Field; + + Exit: + if ( error && ( p->flags & _BDF_GLYPH ) ) + FT_FREE( p->glyph_name ); + + return error; + } + + + /* Load the font properties. */ + static FT_Error + _bdf_parse_properties( char* line, + unsigned long linelen, + unsigned long lineno, + void* call_data, + void* client_data ) + { + unsigned long vlen; + _bdf_line_func_t* next; + _bdf_parse_t* p; + char* name; + char* value; + char nbuf[128]; + FT_Error error = BDF_Err_Ok; + + FT_UNUSED( lineno ); + + + next = (_bdf_line_func_t *)call_data; + p = (_bdf_parse_t *) client_data; + + /* Check for the end of the properties. */ + if ( ft_memcmp( line, "ENDPROPERTIES", 13 ) == 0 ) + { + /* If the FONT_ASCENT or FONT_DESCENT properties have not been */ + /* encountered yet, then make sure they are added as properties and */ + /* make sure they are set from the font bounding box info. */ + /* */ + /* This is *always* done regardless of the options, because X11 */ + /* requires these two fields to compile fonts. */ + if ( bdf_get_font_property( p->font, "FONT_ASCENT" ) == 0 ) + { + p->font->font_ascent = p->font->bbx.ascent; + ft_sprintf( nbuf, "%hd", p->font->bbx.ascent ); + error = _bdf_add_property( p->font, (char *)"FONT_ASCENT", + nbuf, lineno ); + if ( error ) + goto Exit; + + FT_TRACE2(( "_bdf_parse_properties: " ACMSG1, p->font->bbx.ascent )); + p->font->modified = 1; + } + + if ( bdf_get_font_property( p->font, "FONT_DESCENT" ) == 0 ) + { + p->font->font_descent = p->font->bbx.descent; + ft_sprintf( nbuf, "%hd", p->font->bbx.descent ); + error = _bdf_add_property( p->font, (char *)"FONT_DESCENT", + nbuf, lineno ); + if ( error ) + goto Exit; + + FT_TRACE2(( "_bdf_parse_properties: " ACMSG2, p->font->bbx.descent )); + p->font->modified = 1; + } + + p->flags &= ~_BDF_PROPS; + *next = _bdf_parse_glyphs; + + goto Exit; + } + + /* Ignore the _XFREE86_GLYPH_RANGES properties. */ + if ( ft_memcmp( line, "_XFREE86_GLYPH_RANGES", 21 ) == 0 ) + goto Exit; + + /* Handle COMMENT fields and properties in a special way to preserve */ + /* the spacing. */ + if ( ft_memcmp( line, "COMMENT", 7 ) == 0 ) + { + name = value = line; + value += 7; + if ( *value ) + *value++ = 0; + error = _bdf_add_property( p->font, name, value, lineno ); + if ( error ) + goto Exit; + } + else if ( _bdf_is_atom( line, linelen, &name, &value, p->font ) ) + { + error = _bdf_add_property( p->font, name, value, lineno ); + if ( error ) + goto Exit; + } + else + { + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + name = p->list.field[0]; + + _bdf_list_shift( &p->list, 1 ); + value = _bdf_list_join( &p->list, ' ', &vlen ); + + error = _bdf_add_property( p->font, name, value, lineno ); + if ( error ) + goto Exit; + } + + Exit: + return error; + } + + + /* Load the font header. */ + static FT_Error + _bdf_parse_start( char* line, + unsigned long linelen, + unsigned long lineno, + void* call_data, + void* client_data ) + { + unsigned long slen; + _bdf_line_func_t* next; + _bdf_parse_t* p; + bdf_font_t* font; + char *s; + + FT_Memory memory = NULL; + FT_Error error = BDF_Err_Ok; + + FT_UNUSED( lineno ); /* only used in debug mode */ + + + next = (_bdf_line_func_t *)call_data; + p = (_bdf_parse_t *) client_data; + + if ( p->font ) + memory = p->font->memory; + + /* Check for a comment. This is done to handle those fonts that have */ + /* comments before the STARTFONT line for some reason. */ + if ( ft_memcmp( line, "COMMENT", 7 ) == 0 ) + { + if ( p->opts->keep_comments != 0 && p->font != 0 ) + { + linelen -= 7; + + s = line + 7; + if ( *s != 0 ) + { + s++; + linelen--; + } + + error = _bdf_add_comment( p->font, s, linelen ); + if ( error ) + goto Exit; + /* here font is not defined! */ + } + + goto Exit; + } + + if ( !( p->flags & _BDF_START ) ) + { + memory = p->memory; + + if ( ft_memcmp( line, "STARTFONT", 9 ) != 0 ) + { + /* we don't emit an error message since this code gets */ + /* explicitly caught one level higher */ + error = BDF_Err_Missing_Startfont_Field; + goto Exit; + } + + p->flags = _BDF_START; + font = p->font = 0; + + if ( FT_NEW( font ) ) + goto Exit; + p->font = font; + + font->memory = p->memory; + p->memory = 0; + + { /* setup */ + size_t i; + bdf_property_t* prop; + + + error = hash_init( &(font->proptbl), memory ); + if ( error ) + goto Exit; + for ( i = 0, prop = (bdf_property_t*)_bdf_properties; + i < _num_bdf_properties; i++, prop++ ) + { + error = hash_insert( prop->name, i, + &(font->proptbl), memory ); + if ( error ) + goto Exit; + } + } + + if ( FT_ALLOC( p->font->internal, sizeof ( hashtable ) ) ) + goto Exit; + error = hash_init( (hashtable *)p->font->internal,memory ); + if ( error ) + goto Exit; + p->font->spacing = p->opts->font_spacing; + p->font->default_char = -1; + + goto Exit; + } + + /* Check for the start of the properties. */ + if ( ft_memcmp( line, "STARTPROPERTIES", 15 ) == 0 ) + { + if ( !( p->flags & _BDF_FONT_BBX ) ) + { + /* Missing the FONTBOUNDINGBOX field. */ + FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "FONTBOUNDINGBOX" )); + error = BDF_Err_Missing_Fontboundingbox_Field; + goto Exit; + } + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + /* at this point, `p->font' can't be NULL */ + p->cnt = p->font->props_size = _bdf_atoul( p->list.field[1], 0, 10 ); + + if ( FT_NEW_ARRAY( p->font->props, p->cnt ) ) + goto Exit; + + p->flags |= _BDF_PROPS; + *next = _bdf_parse_properties; + + goto Exit; + } + + /* Check for the FONTBOUNDINGBOX field. */ + if ( ft_memcmp( line, "FONTBOUNDINGBOX", 15 ) == 0 ) + { + if ( !( p->flags & _BDF_SIZE ) ) + { + /* Missing the SIZE field. */ + FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "SIZE" )); + error = BDF_Err_Missing_Size_Field; + goto Exit; + } + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + p->font->bbx.width = _bdf_atos( p->list.field[1], 0, 10 ); + p->font->bbx.height = _bdf_atos( p->list.field[2], 0, 10 ); + + p->font->bbx.x_offset = _bdf_atos( p->list.field[3], 0, 10 ); + p->font->bbx.y_offset = _bdf_atos( p->list.field[4], 0, 10 ); + + p->font->bbx.ascent = (short)( p->font->bbx.height + + p->font->bbx.y_offset ); + + p->font->bbx.descent = (short)( -p->font->bbx.y_offset ); + + p->flags |= _BDF_FONT_BBX; + + goto Exit; + } + + /* The next thing to check for is the FONT field. */ + if ( ft_memcmp( line, "FONT", 4 ) == 0 ) + { + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + _bdf_list_shift( &p->list, 1 ); + + s = _bdf_list_join( &p->list, ' ', &slen ); + + if ( !s ) + { + FT_ERROR(( "_bdf_parse_start: " ERRMSG8, lineno, "FONT" )); + error = BDF_Err_Invalid_File_Format; + goto Exit; + } + + /* Allowing multiple `FONT' lines (which is invalid) doesn't hurt... */ + FT_FREE( p->font->name ); + + if ( FT_NEW_ARRAY( p->font->name, slen + 1 ) ) + goto Exit; + FT_MEM_COPY( p->font->name, s, slen + 1 ); + + /* If the font name is an XLFD name, set the spacing to the one in */ + /* the font name. If there is no spacing fall back on the default. */ + error = _bdf_set_default_spacing( p->font, p->opts, lineno ); + if ( error ) + goto Exit; + + p->flags |= _BDF_FONT_NAME; + + goto Exit; + } + + /* Check for the SIZE field. */ + if ( ft_memcmp( line, "SIZE", 4 ) == 0 ) + { + if ( !( p->flags & _BDF_FONT_NAME ) ) + { + /* Missing the FONT field. */ + FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "FONT" )); + error = BDF_Err_Missing_Font_Field; + goto Exit; + } + + error = _bdf_list_split( &p->list, (char *)" +", line, linelen ); + if ( error ) + goto Exit; + + p->font->point_size = _bdf_atoul( p->list.field[1], 0, 10 ); + p->font->resolution_x = _bdf_atoul( p->list.field[2], 0, 10 ); + p->font->resolution_y = _bdf_atoul( p->list.field[3], 0, 10 ); + + /* Check for the bits per pixel field. */ + if ( p->list.used == 5 ) + { + unsigned short bitcount, i, shift; + + + p->font->bpp = (unsigned short)_bdf_atos( p->list.field[4], 0, 10 ); + + /* Only values 1, 2, 4, 8 are allowed. */ + shift = p->font->bpp; + bitcount = 0; + for ( i = 0; shift > 0; i++ ) + { + if ( shift & 1 ) + bitcount = i; + shift >>= 1; + } + + shift = (short)( ( bitcount > 3 ) ? 8 : ( 1 << bitcount ) ); + + if ( p->font->bpp > shift || p->font->bpp != shift ) + { + /* select next higher value */ + p->font->bpp = (unsigned short)( shift << 1 ); + FT_TRACE2(( "_bdf_parse_start: " ACMSG11, p->font->bpp )); + } + } + else + p->font->bpp = 1; + + p->flags |= _BDF_SIZE; + + goto Exit; + } + + /* Check for the CHARS field -- font properties are optional */ + if ( ft_memcmp( line, "CHARS", 5 ) == 0 ) + { + char nbuf[128]; + + + if ( !( p->flags & _BDF_FONT_BBX ) ) + { + /* Missing the FONTBOUNDINGBOX field. */ + FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "FONTBOUNDINGBOX" )); + error = BDF_Err_Missing_Fontboundingbox_Field; + goto Exit; + } + + /* Add the two standard X11 properties which are required */ + /* for compiling fonts. */ + p->font->font_ascent = p->font->bbx.ascent; + ft_sprintf( nbuf, "%hd", p->font->bbx.ascent ); + error = _bdf_add_property( p->font, (char *)"FONT_ASCENT", + nbuf, lineno ); + if ( error ) + goto Exit; + FT_TRACE2(( "_bdf_parse_properties: " ACMSG1, p->font->bbx.ascent )); + + p->font->font_descent = p->font->bbx.descent; + ft_sprintf( nbuf, "%hd", p->font->bbx.descent ); + error = _bdf_add_property( p->font, (char *)"FONT_DESCENT", + nbuf, lineno ); + if ( error ) + goto Exit; + FT_TRACE2(( "_bdf_parse_properties: " ACMSG2, p->font->bbx.descent )); + + p->font->modified = 1; + + *next = _bdf_parse_glyphs; + + /* A special return value. */ + error = -1; + goto Exit; + } + + FT_ERROR(( "_bdf_parse_start: " ERRMSG9, lineno )); + error = BDF_Err_Invalid_File_Format; + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* API. */ + /* */ + /*************************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + bdf_load_font( FT_Stream stream, + FT_Memory extmemory, + bdf_options_t* opts, + bdf_font_t* *font ) + { + unsigned long lineno = 0; /* make compiler happy */ + _bdf_parse_t *p = NULL; + + FT_Memory memory = extmemory; + FT_Error error = BDF_Err_Ok; + + + if ( FT_NEW( p ) ) + goto Exit; + + memory = NULL; + p->opts = (bdf_options_t*)( ( opts != 0 ) ? opts : &_bdf_opts ); + p->minlb = 32767; + p->memory = extmemory; /* only during font creation */ + + _bdf_list_init( &p->list, extmemory ); + + error = _bdf_readstream( stream, _bdf_parse_start, + (void *)p, &lineno ); + if ( error ) + goto Fail; + + if ( p->font != 0 ) + { + /* If the font is not proportional, set the font's monowidth */ + /* field to the width of the font bounding box. */ + memory = p->font->memory; + + if ( p->font->spacing != BDF_PROPORTIONAL ) + p->font->monowidth = p->font->bbx.width; + + /* If the number of glyphs loaded is not that of the original count, */ + /* indicate the difference. */ + if ( p->cnt != p->font->glyphs_used + p->font->unencoded_used ) + { + FT_TRACE2(( "bdf_load_font: " ACMSG15, p->cnt, + p->font->glyphs_used + p->font->unencoded_used )); + p->font->modified = 1; + } + + /* Once the font has been loaded, adjust the overall font metrics if */ + /* necessary. */ + if ( p->opts->correct_metrics != 0 && + ( p->font->glyphs_used > 0 || p->font->unencoded_used > 0 ) ) + { + if ( p->maxrb - p->minlb != p->font->bbx.width ) + { + FT_TRACE2(( "bdf_load_font: " ACMSG3, + p->font->bbx.width, p->maxrb - p->minlb )); + p->font->bbx.width = (unsigned short)( p->maxrb - p->minlb ); + p->font->modified = 1; + } + + if ( p->font->bbx.x_offset != p->minlb ) + { + FT_TRACE2(( "bdf_load_font: " ACMSG4, + p->font->bbx.x_offset, p->minlb )); + p->font->bbx.x_offset = p->minlb; + p->font->modified = 1; + } + + if ( p->font->bbx.ascent != p->maxas ) + { + FT_TRACE2(( "bdf_load_font: " ACMSG5, + p->font->bbx.ascent, p->maxas )); + p->font->bbx.ascent = p->maxas; + p->font->modified = 1; + } + + if ( p->font->bbx.descent != p->maxds ) + { + FT_TRACE2(( "bdf_load_font: " ACMSG6, + p->font->bbx.descent, p->maxds )); + p->font->bbx.descent = p->maxds; + p->font->bbx.y_offset = (short)( -p->maxds ); + p->font->modified = 1; + } + + if ( p->maxas + p->maxds != p->font->bbx.height ) + { + FT_TRACE2(( "bdf_load_font: " ACMSG7, + p->font->bbx.height, p->maxas + p->maxds )); + p->font->bbx.height = (unsigned short)( p->maxas + p->maxds ); + } + + if ( p->flags & _BDF_SWIDTH_ADJ ) + FT_TRACE2(( "bdf_load_font: " ACMSG8 )); + } + } + + if ( p->flags & _BDF_START ) + { + /* The ENDFONT field was never reached or did not exist. */ + if ( !( p->flags & _BDF_GLYPHS ) ) + { + /* Error happened while parsing header. */ + FT_ERROR(( "bdf_load_font: " ERRMSG2, lineno )); + error = BDF_Err_Corrupted_Font_Header; + goto Exit; + } + else + { + /* Error happened when parsing glyphs. */ + FT_ERROR(( "bdf_load_font: " ERRMSG3, lineno )); + error = BDF_Err_Corrupted_Font_Glyphs; + goto Exit; + } + } + + if ( p->font != 0 ) + { + /* Make sure the comments are NULL terminated if they exist. */ + memory = p->font->memory; + + if ( p->font->comments_len > 0 ) + { + if ( FT_RENEW_ARRAY( p->font->comments, + p->font->comments_len, + p->font->comments_len + 1 ) ) + goto Fail; + + p->font->comments[p->font->comments_len] = 0; + } + } + else if ( error == BDF_Err_Ok ) + error = BDF_Err_Invalid_File_Format; + + *font = p->font; + + Exit: + if ( p ) + { + _bdf_list_done( &p->list ); + + memory = extmemory; + + FT_FREE( p ); + } + + return error; + + Fail: + bdf_free_font( p->font ); + + memory = extmemory; + + FT_FREE( p->font ); + + goto Exit; + } + + + FT_LOCAL_DEF( void ) + bdf_free_font( bdf_font_t* font ) + { + bdf_property_t* prop; + unsigned long i; + bdf_glyph_t* glyphs; + FT_Memory memory; + + + if ( font == 0 ) + return; + + memory = font->memory; + + FT_FREE( font->name ); + + /* Free up the internal hash table of property names. */ + if ( font->internal ) + { + hash_free( (hashtable *)font->internal, memory ); + FT_FREE( font->internal ); + } + + /* Free up the comment info. */ + FT_FREE( font->comments ); + + /* Free up the properties. */ + for ( i = 0; i < font->props_size; i++ ) + { + if ( font->props[i].format == BDF_ATOM ) + FT_FREE( font->props[i].value.atom ); + } + + FT_FREE( font->props ); + + /* Free up the character info. */ + for ( i = 0, glyphs = font->glyphs; + i < font->glyphs_used; i++, glyphs++ ) + { + FT_FREE( glyphs->name ); + FT_FREE( glyphs->bitmap ); + } + + for ( i = 0, glyphs = font->unencoded; i < font->unencoded_used; + i++, glyphs++ ) + { + FT_FREE( glyphs->name ); + FT_FREE( glyphs->bitmap ); + } + + FT_FREE( font->glyphs ); + FT_FREE( font->unencoded ); + + /* Free up the overflow storage if it was used. */ + for ( i = 0, glyphs = font->overflow.glyphs; + i < font->overflow.glyphs_used; i++, glyphs++ ) + { + FT_FREE( glyphs->name ); + FT_FREE( glyphs->bitmap ); + } + + FT_FREE( font->overflow.glyphs ); + + /* bdf_cleanup */ + hash_free( &(font->proptbl), memory ); + + /* Free up the user defined properties. */ + for ( prop = font->user_props, i = 0; + i < font->nuser_props; i++, prop++ ) + { + FT_FREE( prop->name ); + if ( prop->format == BDF_ATOM ) + FT_FREE( prop->value.atom ); + } + + FT_FREE( font->user_props ); + + /* FREE( font ); */ /* XXX Fixme */ + } + + + FT_LOCAL_DEF( bdf_property_t * ) + bdf_get_font_property( bdf_font_t* font, + const char* name ) + { + hashnode hn; + + + if ( font == 0 || font->props_size == 0 || name == 0 || *name == 0 ) + return 0; + + hn = hash_lookup( name, (hashtable *)font->internal ); + + return hn ? ( font->props + hn->data ) : 0; + } + + +/* END */ diff --git a/src/bdf/module.mk b/src/bdf/module.mk new file mode 100644 index 0000000..fe06ae8 --- /dev/null +++ b/src/bdf/module.mk @@ -0,0 +1,34 @@ +# +# FreeType 2 BDF module definition +# + +# Copyright 2001, 2002, 2006 by +# Francesco Zappa Nardelli +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +# THE SOFTWARE. + + +FTMODULE_H_COMMANDS += BDF_DRIVER + +define BDF_DRIVER +$(OPEN_DRIVER) FT_Driver_ClassRec, bdf_driver_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)bdf $(ECHO_DRIVER_DESC)bdf bitmap fonts$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/bdf/rules.mk b/src/bdf/rules.mk new file mode 100644 index 0000000..6ff1614 --- /dev/null +++ b/src/bdf/rules.mk @@ -0,0 +1,81 @@ +# +# FreeType 2 bdf driver configuration rules +# + + +# Copyright (C) 2001, 2002, 2003, 2008 by +# Francesco Zappa Nardelli +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +# THE SOFTWARE. + + + + +# bdf driver directory +# +BDF_DIR := $(SRC_DIR)/bdf + + +BDF_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(BDF_DIR)) + + +# bdf driver sources (i.e., C files) +# +BDF_DRV_SRC := $(BDF_DIR)/bdflib.c \ + $(BDF_DIR)/bdfdrivr.c + + +# bdf driver headers +# +BDF_DRV_H := $(BDF_DIR)/bdf.h \ + $(BDF_DIR)/bdfdrivr.h \ + $(BDF_DIR)/bdferror.h + +# bdf driver object(s) +# +# BDF_DRV_OBJ_M is used during `multi' builds +# BDF_DRV_OBJ_S is used during `single' builds +# +BDF_DRV_OBJ_M := $(BDF_DRV_SRC:$(BDF_DIR)/%.c=$(OBJ_DIR)/%.$O) +BDF_DRV_OBJ_S := $(OBJ_DIR)/bdf.$O + +# bdf driver source file for single build +# +BDF_DRV_SRC_S := $(BDF_DIR)/bdf.c + + +# bdf driver - single object +# +$(BDF_DRV_OBJ_S): $(BDF_DRV_SRC_S) $(BDF_DRV_SRC) $(FREETYPE_H) $(BDF_DRV_H) + $(BDF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(BDF_DRV_SRC_S)) + + +# bdf driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(BDF_DIR)/%.c $(FREETYPE_H) $(BDF_DRV_H) + $(BDF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(BDF_DRV_OBJ_S) +DRV_OBJS_M += $(BDF_DRV_OBJ_M) + + +# EOF diff --git a/src/bzip2/Jamfile b/src/bzip2/Jamfile new file mode 100644 index 0000000..3da986d --- /dev/null +++ b/src/bzip2/Jamfile @@ -0,0 +1,19 @@ +# FreeType 2 src/bzip2 Jamfile +# +# Copyright 2010 by +# Joel Klinghed +# +# Based on src/lzw/Jamfile, Copyright 2004, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) bzip2 ; + +Library $(FT2_LIB) : ftbzip2.c ; + +# end of src/bzip2 Jamfile diff --git a/src/bzip2/ftbzip2.c b/src/bzip2/ftbzip2.c new file mode 100644 index 0000000..d60ee3e --- /dev/null +++ b/src/bzip2/ftbzip2.c @@ -0,0 +1,511 @@ +/***************************************************************************/ +/* */ +/* ftbzip2.c */ +/* */ +/* FreeType support for .bz2 compressed files. */ +/* */ +/* This optional component relies on libbz2. It should mainly be used to */ +/* parse compressed PCF fonts, as found with many X11 server */ +/* distributions. */ +/* */ +/* Copyright 2010, 2012 by */ +/* Joel Klinghed. */ +/* */ +/* Based on src/gzip/ftgzip.c, Copyright 2002 - 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H +#include FT_BZIP2_H +#include FT_CONFIG_STANDARD_LIBRARY_H + + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX Bzip2_Err_ +#define FT_ERR_BASE FT_Mod_Err_Bzip2 + +#include FT_ERRORS_H + + +#ifdef FT_CONFIG_OPTION_USE_BZIP2 + +#ifdef FT_CONFIG_OPTION_PIC +#error "bzip2 code does not support PIC yet" +#endif + +#define BZ_NO_STDIO /* Do not need FILE */ +#include <bzlib.h> + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** B Z I P 2 M E M O R Y M A N A G E M E N T *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + + /* it is better to use FreeType memory routines instead of raw + 'malloc/free' */ + + typedef void *(* alloc_func)(void*, int, int); + typedef void (* free_func)(void*, void*); + + static void* + ft_bzip2_alloc( FT_Memory memory, + int items, + int size ) + { + FT_ULong sz = (FT_ULong)size * items; + FT_Error error; + FT_Pointer p = NULL; + + + (void)FT_ALLOC( p, sz ); + return p; + } + + + static void + ft_bzip2_free( FT_Memory memory, + void* address ) + { + FT_MEM_FREE( address ); + } + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** B Z I P 2 F I L E D E S C R I P T O R *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + +#define FT_BZIP2_BUFFER_SIZE 4096 + + typedef struct FT_BZip2FileRec_ + { + FT_Stream source; /* parent/source stream */ + FT_Stream stream; /* embedding stream */ + FT_Memory memory; /* memory allocator */ + bz_stream bzstream; /* bzlib input stream */ + + FT_Byte input[FT_BZIP2_BUFFER_SIZE]; /* input read buffer */ + + FT_Byte buffer[FT_BZIP2_BUFFER_SIZE]; /* output buffer */ + FT_ULong pos; /* position in output */ + FT_Byte* cursor; + FT_Byte* limit; + + } FT_BZip2FileRec, *FT_BZip2File; + + + /* check and skip .bz2 header - we don't support `transparent' compression */ + static FT_Error + ft_bzip2_check_header( FT_Stream stream ) + { + FT_Error error = Bzip2_Err_Ok; + FT_Byte head[4]; + + + if ( FT_STREAM_SEEK( 0 ) || + FT_STREAM_READ( head, 4 ) ) + goto Exit; + + /* head[0] && head[1] are the magic numbers; */ + /* head[2] is the version, and head[3] the blocksize */ + if ( head[0] != 0x42 || + head[1] != 0x5a || + head[2] != 0x68 ) /* only support bzip2 (huffman) */ + { + error = Bzip2_Err_Invalid_File_Format; + goto Exit; + } + + Exit: + return error; + } + + + static FT_Error + ft_bzip2_file_init( FT_BZip2File zip, + FT_Stream stream, + FT_Stream source ) + { + bz_stream* bzstream = &zip->bzstream; + FT_Error error = Bzip2_Err_Ok; + + + zip->stream = stream; + zip->source = source; + zip->memory = stream->memory; + + zip->limit = zip->buffer + FT_BZIP2_BUFFER_SIZE; + zip->cursor = zip->limit; + zip->pos = 0; + + /* check .bz2 header */ + { + stream = source; + + error = ft_bzip2_check_header( stream ); + if ( error ) + goto Exit; + + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + } + + /* initialize bzlib */ + bzstream->bzalloc = (alloc_func)ft_bzip2_alloc; + bzstream->bzfree = (free_func) ft_bzip2_free; + bzstream->opaque = zip->memory; + + bzstream->avail_in = 0; + bzstream->next_in = (char*)zip->buffer; + + if ( BZ2_bzDecompressInit( bzstream, 0, 0 ) != BZ_OK || + bzstream->next_in == NULL ) + error = Bzip2_Err_Invalid_File_Format; + + Exit: + return error; + } + + + static void + ft_bzip2_file_done( FT_BZip2File zip ) + { + bz_stream* bzstream = &zip->bzstream; + + + BZ2_bzDecompressEnd( bzstream ); + + /* clear the rest */ + bzstream->bzalloc = NULL; + bzstream->bzfree = NULL; + bzstream->opaque = NULL; + bzstream->next_in = NULL; + bzstream->next_out = NULL; + bzstream->avail_in = 0; + bzstream->avail_out = 0; + + zip->memory = NULL; + zip->source = NULL; + zip->stream = NULL; + } + + + static FT_Error + ft_bzip2_file_reset( FT_BZip2File zip ) + { + FT_Stream stream = zip->source; + FT_Error error; + + + if ( !FT_STREAM_SEEK( 0 ) ) + { + bz_stream* bzstream = &zip->bzstream; + + + BZ2_bzDecompressEnd( bzstream ); + + bzstream->avail_in = 0; + bzstream->next_in = (char*)zip->input; + bzstream->avail_out = 0; + bzstream->next_out = (char*)zip->buffer; + + zip->limit = zip->buffer + FT_BZIP2_BUFFER_SIZE; + zip->cursor = zip->limit; + zip->pos = 0; + + BZ2_bzDecompressInit( bzstream, 0, 0 ); + } + + return error; + } + + + static FT_Error + ft_bzip2_file_fill_input( FT_BZip2File zip ) + { + bz_stream* bzstream = &zip->bzstream; + FT_Stream stream = zip->source; + FT_ULong size; + + + if ( stream->read ) + { + size = stream->read( stream, stream->pos, zip->input, + FT_BZIP2_BUFFER_SIZE ); + if ( size == 0 ) + return Bzip2_Err_Invalid_Stream_Operation; + } + else + { + size = stream->size - stream->pos; + if ( size > FT_BZIP2_BUFFER_SIZE ) + size = FT_BZIP2_BUFFER_SIZE; + + if ( size == 0 ) + return Bzip2_Err_Invalid_Stream_Operation; + + FT_MEM_COPY( zip->input, stream->base + stream->pos, size ); + } + stream->pos += size; + + bzstream->next_in = (char*)zip->input; + bzstream->avail_in = size; + + return Bzip2_Err_Ok; + } + + + static FT_Error + ft_bzip2_file_fill_output( FT_BZip2File zip ) + { + bz_stream* bzstream = &zip->bzstream; + FT_Error error = Bzip2_Err_Ok; + + + zip->cursor = zip->buffer; + bzstream->next_out = (char*)zip->cursor; + bzstream->avail_out = FT_BZIP2_BUFFER_SIZE; + + while ( bzstream->avail_out > 0 ) + { + int err; + + + if ( bzstream->avail_in == 0 ) + { + error = ft_bzip2_file_fill_input( zip ); + if ( error ) + break; + } + + err = BZ2_bzDecompress( bzstream ); + + if ( err == BZ_STREAM_END ) + { + zip->limit = (FT_Byte*)bzstream->next_out; + if ( zip->limit == zip->cursor ) + error = Bzip2_Err_Invalid_Stream_Operation; + break; + } + else if ( err != BZ_OK ) + { + error = Bzip2_Err_Invalid_Stream_Operation; + break; + } + } + + return error; + } + + + /* fill output buffer; `count' must be <= FT_BZIP2_BUFFER_SIZE */ + static FT_Error + ft_bzip2_file_skip_output( FT_BZip2File zip, + FT_ULong count ) + { + FT_Error error = Bzip2_Err_Ok; + FT_ULong delta; + + + for (;;) + { + delta = (FT_ULong)( zip->limit - zip->cursor ); + if ( delta >= count ) + delta = count; + + zip->cursor += delta; + zip->pos += delta; + + count -= delta; + if ( count == 0 ) + break; + + error = ft_bzip2_file_fill_output( zip ); + if ( error ) + break; + } + + return error; + } + + + static FT_ULong + ft_bzip2_file_io( FT_BZip2File zip, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_ULong result = 0; + FT_Error error; + + + /* Reset inflate stream if we're seeking backwards. */ + /* Yes, that is not too efficient, but it saves memory :-) */ + if ( pos < zip->pos ) + { + error = ft_bzip2_file_reset( zip ); + if ( error ) + goto Exit; + } + + /* skip unwanted bytes */ + if ( pos > zip->pos ) + { + error = ft_bzip2_file_skip_output( zip, (FT_ULong)( pos - zip->pos ) ); + if ( error ) + goto Exit; + } + + if ( count == 0 ) + goto Exit; + + /* now read the data */ + for (;;) + { + FT_ULong delta; + + + delta = (FT_ULong)( zip->limit - zip->cursor ); + if ( delta >= count ) + delta = count; + + FT_MEM_COPY( buffer, zip->cursor, delta ); + buffer += delta; + result += delta; + zip->cursor += delta; + zip->pos += delta; + + count -= delta; + if ( count == 0 ) + break; + + error = ft_bzip2_file_fill_output( zip ); + if ( error ) + break; + } + + Exit: + return result; + } + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** B Z E M B E D D I N G S T R E A M *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + + static void + ft_bzip2_stream_close( FT_Stream stream ) + { + FT_BZip2File zip = (FT_BZip2File)stream->descriptor.pointer; + FT_Memory memory = stream->memory; + + + if ( zip ) + { + /* finalize bzip file descriptor */ + ft_bzip2_file_done( zip ); + + FT_FREE( zip ); + + stream->descriptor.pointer = NULL; + } + } + + + static FT_ULong + ft_bzip2_stream_io( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_BZip2File zip = (FT_BZip2File)stream->descriptor.pointer; + + + return ft_bzip2_file_io( zip, pos, buffer, count ); + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_OpenBzip2( FT_Stream stream, + FT_Stream source ) + { + FT_Error error; + FT_Memory memory = source->memory; + FT_BZip2File zip = NULL; + + + /* + * check the header right now; this prevents allocating unnecessary + * objects when we don't need them + */ + error = ft_bzip2_check_header( source ); + if ( error ) + goto Exit; + + FT_ZERO( stream ); + stream->memory = memory; + + if ( !FT_QNEW( zip ) ) + { + error = ft_bzip2_file_init( zip, stream, source ); + if ( error ) + { + FT_FREE( zip ); + goto Exit; + } + + stream->descriptor.pointer = zip; + } + + stream->size = 0x7FFFFFFFL; /* don't know the real size! */ + stream->pos = 0; + stream->base = 0; + stream->read = ft_bzip2_stream_io; + stream->close = ft_bzip2_stream_close; + + Exit: + return error; + } + +#else /* !FT_CONFIG_OPTION_USE_BZIP2 */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_OpenBzip2( FT_Stream stream, + FT_Stream source ) + { + FT_UNUSED( stream ); + FT_UNUSED( source ); + + return Bzip2_Err_Unimplemented_Feature; + } + +#endif /* !FT_CONFIG_OPTION_USE_BZIP2 */ + + +/* END */ diff --git a/src/bzip2/rules.mk b/src/bzip2/rules.mk new file mode 100644 index 0000000..0ff2628 --- /dev/null +++ b/src/bzip2/rules.mk @@ -0,0 +1,63 @@ +# +# FreeType 2 BZIP2 support configuration rules +# + +# Copyright 2010 by +# Joel Klinghed. +# +# Based on src/lzw/rules.mk, Copyright 2004-2006 by +# Albert Chin-A-Young. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# BZIP2 driver directory +# +BZIP2_DIR := $(SRC_DIR)/bzip2 + + +# compilation flags for the driver +# +BZIP2_COMPILE := $(FT_COMPILE) + + +# BZIP2 support sources (i.e., C files) +# +BZIP2_DRV_SRC := $(BZIP2_DIR)/ftbzip2.c + +# BZIP2 driver object(s) +# +# BZIP2_DRV_OBJ_M is used during `multi' builds +# BZIP2_DRV_OBJ_S is used during `single' builds +# +BZIP2_DRV_OBJ_M := $(OBJ_DIR)/ftbzip2.$O +BZIP2_DRV_OBJ_S := $(OBJ_DIR)/ftbzip2.$O + +# BZIP2 support source file for single build +# +BZIP2_DRV_SRC_S := $(BZIP2_DIR)/ftbzip2.c + + +# BZIP2 support - single object +# +$(BZIP2_DRV_OBJ_S): $(BZIP2_DRV_SRC_S) $(BZIP2_DRV_SRC) $(FREETYPE_H) $(BZIP2_DRV_H) + $(BZIP2_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(BZIP2_DRV_SRC_S)) + + +# BZIP2 support - multiple objects +# +$(OBJ_DIR)/%.$O: $(BZIP2_DIR)/%.c $(FREETYPE_H) $(BZIP2_DRV_H) + $(BZIP2_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(BZIP2_DRV_OBJ_S) +DRV_OBJS_M += $(BZIP2_DRV_OBJ_M) + + +# EOF diff --git a/src/cache/Jamfile b/src/cache/Jamfile new file mode 100644 index 0000000..340cff7 --- /dev/null +++ b/src/cache/Jamfile @@ -0,0 +1,43 @@ +# FreeType 2 src/cache Jamfile +# +# Copyright 2001, 2003, 2004 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) cache ; + +# The file <freetype/ftcache.h> contains some macro definitions that are +# later used in #include statements related to the cache sub-system. It +# needs to be parsed through a HDRMACRO rule for macro definitions. +# +HDRMACRO [ FT2_SubDir include ftcache.h ] ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = ftcmru + ftcmanag + ftccache + ftcglyph + ftcsbits + ftcimage + ftcbasic + ftccmap + ; + } + else + { + _sources = ftcache ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/cache Jamfile diff --git a/src/cache/ftcache.c b/src/cache/ftcache.c new file mode 100644 index 0000000..d41e91e --- /dev/null +++ b/src/cache/ftcache.c @@ -0,0 +1,31 @@ +/***************************************************************************/ +/* */ +/* ftcache.c */ +/* */ +/* The FreeType Caching sub-system (body only). */ +/* */ +/* Copyright 2000-2001, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> +#include "ftcmru.c" +#include "ftcmanag.c" +#include "ftccache.c" +#include "ftccmap.c" +#include "ftcglyph.c" +#include "ftcimage.c" +#include "ftcsbits.c" +#include "ftcbasic.c" + +/* END */ diff --git a/src/cache/ftcbasic.c b/src/cache/ftcbasic.c new file mode 100644 index 0000000..d4fc353 --- /dev/null +++ b/src/cache/ftcbasic.c @@ -0,0 +1,855 @@ +/***************************************************************************/ +/* */ +/* ftcbasic.c */ +/* */ +/* The FreeType basic cache interface (body). */ +/* */ +/* Copyright 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_CACHE_H +#include "ftcglyph.h" +#include "ftcimage.h" +#include "ftcsbits.h" + +#include "ftccback.h" +#include "ftcerror.h" + +#define FT_COMPONENT trace_cache + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* + * These structures correspond to the FTC_Font and FTC_ImageDesc types + * that were defined in version 2.1.7. + */ + typedef struct FTC_OldFontRec_ + { + FTC_FaceID face_id; + FT_UShort pix_width; + FT_UShort pix_height; + + } FTC_OldFontRec, *FTC_OldFont; + + + typedef struct FTC_OldImageDescRec_ + { + FTC_OldFontRec font; + FT_UInt32 flags; + + } FTC_OldImageDescRec, *FTC_OldImageDesc; + + + /* + * Notice that FTC_OldImageDescRec and FTC_ImageTypeRec are nearly + * identical, bit-wise. The only difference is that the `width' and + * `height' fields are expressed as 16-bit integers in the old structure, + * and as normal `int' in the new one. + * + * We are going to perform a weird hack to detect which structure is + * being passed to the image and sbit caches. If the new structure's + * `width' is larger than 0x10000, we assume that we are really receiving + * an FTC_OldImageDesc. + */ + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /* + * Basic Families + * + */ + typedef struct FTC_BasicAttrRec_ + { + FTC_ScalerRec scaler; + FT_UInt load_flags; + + } FTC_BasicAttrRec, *FTC_BasicAttrs; + +#define FTC_BASIC_ATTR_COMPARE( a, b ) \ + FT_BOOL( FTC_SCALER_COMPARE( &(a)->scaler, &(b)->scaler ) && \ + (a)->load_flags == (b)->load_flags ) + +#define FTC_BASIC_ATTR_HASH( a ) \ + ( FTC_SCALER_HASH( &(a)->scaler ) + 31*(a)->load_flags ) + + + typedef struct FTC_BasicQueryRec_ + { + FTC_GQueryRec gquery; + FTC_BasicAttrRec attrs; + + } FTC_BasicQueryRec, *FTC_BasicQuery; + + + typedef struct FTC_BasicFamilyRec_ + { + FTC_FamilyRec family; + FTC_BasicAttrRec attrs; + + } FTC_BasicFamilyRec, *FTC_BasicFamily; + + + FT_CALLBACK_DEF( FT_Bool ) + ftc_basic_family_compare( FTC_MruNode ftcfamily, + FT_Pointer ftcquery ) + { + FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; + FTC_BasicQuery query = (FTC_BasicQuery)ftcquery; + + + return FTC_BASIC_ATTR_COMPARE( &family->attrs, &query->attrs ); + } + + + FT_CALLBACK_DEF( FT_Error ) + ftc_basic_family_init( FTC_MruNode ftcfamily, + FT_Pointer ftcquery, + FT_Pointer ftccache ) + { + FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; + FTC_BasicQuery query = (FTC_BasicQuery)ftcquery; + FTC_Cache cache = (FTC_Cache)ftccache; + + + FTC_Family_Init( FTC_FAMILY( family ), cache ); + family->attrs = query->attrs; + return 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + ftc_basic_family_get_count( FTC_Family ftcfamily, + FTC_Manager manager ) + { + FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; + FT_Error error; + FT_Face face; + FT_UInt result = 0; + + + error = FTC_Manager_LookupFace( manager, family->attrs.scaler.face_id, + &face ); + + if ( error || !face ) + return result; + + if ( (FT_ULong)face->num_glyphs > FT_UINT_MAX || 0 > face->num_glyphs ) + { + FT_TRACE1(( "ftc_basic_family_get_count: too large number of glyphs " )); + FT_TRACE1(( "in this face, truncated\n", face->num_glyphs )); + } + + if ( !error ) + result = (FT_UInt)face->num_glyphs; + + return result; + } + + + FT_CALLBACK_DEF( FT_Error ) + ftc_basic_family_load_bitmap( FTC_Family ftcfamily, + FT_UInt gindex, + FTC_Manager manager, + FT_Face *aface ) + { + FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; + FT_Error error; + FT_Size size; + + + error = FTC_Manager_LookupSize( manager, &family->attrs.scaler, &size ); + if ( !error ) + { + FT_Face face = size->face; + + + error = FT_Load_Glyph( face, gindex, + family->attrs.load_flags | FT_LOAD_RENDER ); + if ( !error ) + *aface = face; + } + + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + ftc_basic_family_load_glyph( FTC_Family ftcfamily, + FT_UInt gindex, + FTC_Cache cache, + FT_Glyph *aglyph ) + { + FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; + FT_Error error; + FTC_Scaler scaler = &family->attrs.scaler; + FT_Face face; + FT_Size size; + + + /* we will now load the glyph image */ + error = FTC_Manager_LookupSize( cache->manager, + scaler, + &size ); + if ( !error ) + { + face = size->face; + + error = FT_Load_Glyph( face, gindex, family->attrs.load_flags ); + if ( !error ) + { + if ( face->glyph->format == FT_GLYPH_FORMAT_BITMAP || + face->glyph->format == FT_GLYPH_FORMAT_OUTLINE ) + { + /* ok, copy it */ + FT_Glyph glyph; + + + error = FT_Get_Glyph( face->glyph, &glyph ); + if ( !error ) + { + *aglyph = glyph; + goto Exit; + } + } + else + error = FTC_Err_Invalid_Argument; + } + } + + Exit: + return error; + } + + + FT_CALLBACK_DEF( FT_Bool ) + ftc_basic_gnode_compare_faceid( FTC_Node ftcgnode, + FT_Pointer ftcface_id, + FTC_Cache cache, + FT_Bool* list_changed ) + { + FTC_GNode gnode = (FTC_GNode)ftcgnode; + FTC_FaceID face_id = (FTC_FaceID)ftcface_id; + FTC_BasicFamily family = (FTC_BasicFamily)gnode->family; + FT_Bool result; + + + if ( list_changed ) + *list_changed = FALSE; + result = FT_BOOL( family->attrs.scaler.face_id == face_id ); + if ( result ) + { + /* we must call this function to avoid this node from appearing + * in later lookups with the same face_id! + */ + FTC_GNode_UnselectFamily( gnode, cache ); + } + return result; + } + + + /* + * + * basic image cache + * + */ + + FT_CALLBACK_TABLE_DEF + const FTC_IFamilyClassRec ftc_basic_image_family_class = + { + { + sizeof ( FTC_BasicFamilyRec ), + ftc_basic_family_compare, + ftc_basic_family_init, + 0, /* FTC_MruNode_ResetFunc */ + 0 /* FTC_MruNode_DoneFunc */ + }, + ftc_basic_family_load_glyph + }; + + + FT_CALLBACK_TABLE_DEF + const FTC_GCacheClassRec ftc_basic_image_cache_class = + { + { + ftc_inode_new, + ftc_inode_weight, + ftc_gnode_compare, + ftc_basic_gnode_compare_faceid, + ftc_inode_free, + + sizeof ( FTC_GCacheRec ), + ftc_gcache_init, + ftc_gcache_done + }, + (FTC_MruListClass)&ftc_basic_image_family_class + }; + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_ImageCache_New( FTC_Manager manager, + FTC_ImageCache *acache ) + { + return FTC_GCache_New( manager, &ftc_basic_image_cache_class, + (FTC_GCache*)acache ); + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_ImageCache_Lookup( FTC_ImageCache cache, + FTC_ImageType type, + FT_UInt gindex, + FT_Glyph *aglyph, + FTC_Node *anode ) + { + FTC_BasicQueryRec query; + FTC_Node node = 0; /* make compiler happy */ + FT_Error error; + FT_PtrDist hash; + + + /* some argument checks are delayed to FTC_Cache_Lookup */ + if ( !aglyph ) + { + error = FTC_Err_Invalid_Argument; + goto Exit; + } + + *aglyph = NULL; + if ( anode ) + *anode = NULL; + +#if defined( FT_CONFIG_OPTION_OLD_INTERNALS ) && ( FT_INT_MAX > 0xFFFFU ) + + /* + * This one is a major hack used to detect whether we are passed a + * regular FTC_ImageType handle, or a legacy FTC_OldImageDesc one. + */ + if ( (FT_ULong)type->width >= 0x10000L ) + { + FTC_OldImageDesc desc = (FTC_OldImageDesc)type; + + + query.attrs.scaler.face_id = desc->font.face_id; + query.attrs.scaler.width = desc->font.pix_width; + query.attrs.scaler.height = desc->font.pix_height; + query.attrs.load_flags = desc->flags; + } + else + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + { + if ( (FT_ULong)(type->flags - FT_INT_MIN) > FT_UINT_MAX ) + { + FT_TRACE1(( "FTC_ImageCache_Lookup: higher bits in load_flags" )); + FT_TRACE1(( "0x%x are dropped\n", (type->flags & ~((FT_ULong)FT_UINT_MAX)) )); + } + + query.attrs.scaler.face_id = type->face_id; + query.attrs.scaler.width = type->width; + query.attrs.scaler.height = type->height; + query.attrs.load_flags = (FT_UInt)type->flags; + } + + query.attrs.scaler.pixel = 1; + query.attrs.scaler.x_res = 0; /* make compilers happy */ + query.attrs.scaler.y_res = 0; + + hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + gindex; + +#if 1 /* inlining is about 50% faster! */ + FTC_GCACHE_LOOKUP_CMP( cache, + ftc_basic_family_compare, + FTC_GNode_Compare, + hash, gindex, + &query, + node, + error ); +#else + error = FTC_GCache_Lookup( FTC_GCACHE( cache ), + hash, gindex, + FTC_GQUERY( &query ), + &node ); +#endif + if ( !error ) + { + *aglyph = FTC_INODE( node )->glyph; + + if ( anode ) + { + *anode = node; + node->ref_count++; + } + } + + Exit: + return error; + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_ImageCache_LookupScaler( FTC_ImageCache cache, + FTC_Scaler scaler, + FT_ULong load_flags, + FT_UInt gindex, + FT_Glyph *aglyph, + FTC_Node *anode ) + { + FTC_BasicQueryRec query; + FTC_Node node = 0; /* make compiler happy */ + FT_Error error; + FT_PtrDist hash; + + + /* some argument checks are delayed to FTC_Cache_Lookup */ + if ( !aglyph || !scaler ) + { + error = FTC_Err_Invalid_Argument; + goto Exit; + } + + *aglyph = NULL; + if ( anode ) + *anode = NULL; + + /* FT_Load_Glyph(), FT_Load_Char() take FT_UInt flags */ + if ( load_flags > FT_UINT_MAX ) + { + FT_TRACE1(( "FTC_ImageCache_LookupScaler: higher bits in load_flags" )); + FT_TRACE1(( "0x%x are dropped\n", (load_flags & ~((FT_ULong)FT_UINT_MAX)) )); + } + + query.attrs.scaler = scaler[0]; + query.attrs.load_flags = (FT_UInt)load_flags; + + hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + gindex; + + FTC_GCACHE_LOOKUP_CMP( cache, + ftc_basic_family_compare, + FTC_GNode_Compare, + hash, gindex, + &query, + node, + error ); + if ( !error ) + { + *aglyph = FTC_INODE( node )->glyph; + + if ( anode ) + { + *anode = node; + node->ref_count++; + } + } + + Exit: + return error; + } + + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* yet another backwards-legacy structure */ + typedef struct FTC_OldImage_Desc_ + { + FTC_FontRec font; + FT_UInt image_type; + + } FTC_OldImage_Desc; + + +#define FTC_OLD_IMAGE_FORMAT( x ) ( (x) & 7 ) + + +#define ftc_old_image_format_bitmap 0x0000 +#define ftc_old_image_format_outline 0x0001 + +#define ftc_old_image_format_mask 0x000F + +#define ftc_old_image_flag_monochrome 0x0010 +#define ftc_old_image_flag_unhinted 0x0020 +#define ftc_old_image_flag_autohinted 0x0040 +#define ftc_old_image_flag_unscaled 0x0080 +#define ftc_old_image_flag_no_sbits 0x0100 + + /* monochrome bitmap */ +#define ftc_old_image_mono ftc_old_image_format_bitmap | \ + ftc_old_image_flag_monochrome + + /* anti-aliased bitmap */ +#define ftc_old_image_grays ftc_old_image_format_bitmap + + /* scaled outline */ +#define ftc_old_image_outline ftc_old_image_format_outline + + + static void + ftc_image_type_from_old_desc( FTC_ImageType typ, + FTC_OldImage_Desc* desc ) + { + typ->face_id = desc->font.face_id; + typ->width = desc->font.pix_width; + typ->height = desc->font.pix_height; + + /* convert image type flags to load flags */ + { + FT_UInt load_flags = FT_LOAD_DEFAULT; + FT_UInt type = desc->image_type; + + + /* determine load flags, depending on the font description's */ + /* image type */ + + if ( FTC_OLD_IMAGE_FORMAT( type ) == ftc_old_image_format_bitmap ) + { + if ( type & ftc_old_image_flag_monochrome ) + load_flags |= FT_LOAD_MONOCHROME; + + /* disable embedded bitmaps loading if necessary */ + if ( type & ftc_old_image_flag_no_sbits ) + load_flags |= FT_LOAD_NO_BITMAP; + } + else + { + /* we want an outline, don't load embedded bitmaps */ + load_flags |= FT_LOAD_NO_BITMAP; + + if ( type & ftc_old_image_flag_unscaled ) + load_flags |= FT_LOAD_NO_SCALE; + } + + /* always render glyphs to bitmaps */ + load_flags |= FT_LOAD_RENDER; + + if ( type & ftc_old_image_flag_unhinted ) + load_flags |= FT_LOAD_NO_HINTING; + + if ( type & ftc_old_image_flag_autohinted ) + load_flags |= FT_LOAD_FORCE_AUTOHINT; + + typ->flags = load_flags; + } + } + + + FT_EXPORT( FT_Error ) + FTC_Image_Cache_New( FTC_Manager manager, + FTC_ImageCache *acache ); + + FT_EXPORT( FT_Error ) + FTC_Image_Cache_Lookup( FTC_ImageCache icache, + FTC_OldImage_Desc* desc, + FT_UInt gindex, + FT_Glyph *aglyph ); + + + FT_EXPORT_DEF( FT_Error ) + FTC_Image_Cache_New( FTC_Manager manager, + FTC_ImageCache *acache ) + { + return FTC_ImageCache_New( manager, (FTC_ImageCache*)acache ); + } + + + + FT_EXPORT_DEF( FT_Error ) + FTC_Image_Cache_Lookup( FTC_ImageCache icache, + FTC_OldImage_Desc* desc, + FT_UInt gindex, + FT_Glyph *aglyph ) + { + FTC_ImageTypeRec type0; + + + if ( !desc ) + return FTC_Err_Invalid_Argument; + + ftc_image_type_from_old_desc( &type0, desc ); + + return FTC_ImageCache_Lookup( (FTC_ImageCache)icache, + &type0, + gindex, + aglyph, + NULL ); + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /* + * + * basic small bitmap cache + * + */ + + + FT_CALLBACK_TABLE_DEF + const FTC_SFamilyClassRec ftc_basic_sbit_family_class = + { + { + sizeof ( FTC_BasicFamilyRec ), + ftc_basic_family_compare, + ftc_basic_family_init, + 0, /* FTC_MruNode_ResetFunc */ + 0 /* FTC_MruNode_DoneFunc */ + }, + ftc_basic_family_get_count, + ftc_basic_family_load_bitmap + }; + + + FT_CALLBACK_TABLE_DEF + const FTC_GCacheClassRec ftc_basic_sbit_cache_class = + { + { + ftc_snode_new, + ftc_snode_weight, + ftc_snode_compare, + ftc_basic_gnode_compare_faceid, + ftc_snode_free, + + sizeof ( FTC_GCacheRec ), + ftc_gcache_init, + ftc_gcache_done + }, + (FTC_MruListClass)&ftc_basic_sbit_family_class + }; + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_SBitCache_New( FTC_Manager manager, + FTC_SBitCache *acache ) + { + return FTC_GCache_New( manager, &ftc_basic_sbit_cache_class, + (FTC_GCache*)acache ); + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_SBitCache_Lookup( FTC_SBitCache cache, + FTC_ImageType type, + FT_UInt gindex, + FTC_SBit *ansbit, + FTC_Node *anode ) + { + FT_Error error; + FTC_BasicQueryRec query; + FTC_Node node = 0; /* make compiler happy */ + FT_PtrDist hash; + + + if ( anode ) + *anode = NULL; + + /* other argument checks delayed to FTC_Cache_Lookup */ + if ( !ansbit ) + return FTC_Err_Invalid_Argument; + + *ansbit = NULL; + +#if defined( FT_CONFIG_OPTION_OLD_INTERNALS ) && ( FT_INT_MAX > 0xFFFFU ) + + /* This one is a major hack used to detect whether we are passed a + * regular FTC_ImageType handle, or a legacy FTC_OldImageDesc one. + */ + if ( (FT_ULong)type->width >= 0x10000L ) + { + FTC_OldImageDesc desc = (FTC_OldImageDesc)type; + + + query.attrs.scaler.face_id = desc->font.face_id; + query.attrs.scaler.width = desc->font.pix_width; + query.attrs.scaler.height = desc->font.pix_height; + query.attrs.load_flags = desc->flags; + } + else + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + { + if ( (FT_ULong)(type->flags - FT_INT_MIN) > FT_UINT_MAX ) + { + FT_TRACE1(( "FTC_ImageCache_Lookup: higher bits in load_flags" )); + FT_TRACE1(( "0x%x are dropped\n", (type->flags & ~((FT_ULong)FT_UINT_MAX)) )); + } + + query.attrs.scaler.face_id = type->face_id; + query.attrs.scaler.width = type->width; + query.attrs.scaler.height = type->height; + query.attrs.load_flags = (FT_UInt)type->flags; + } + + query.attrs.scaler.pixel = 1; + query.attrs.scaler.x_res = 0; /* make compilers happy */ + query.attrs.scaler.y_res = 0; + + /* beware, the hash must be the same for all glyph ranges! */ + hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + + gindex / FTC_SBIT_ITEMS_PER_NODE; + +#if 1 /* inlining is about 50% faster! */ + FTC_GCACHE_LOOKUP_CMP( cache, + ftc_basic_family_compare, + FTC_SNode_Compare, + hash, gindex, + &query, + node, + error ); +#else + error = FTC_GCache_Lookup( FTC_GCACHE( cache ), + hash, + gindex, + FTC_GQUERY( &query ), + &node ); +#endif + if ( error ) + goto Exit; + + *ansbit = FTC_SNODE( node )->sbits + + ( gindex - FTC_GNODE( node )->gindex ); + + if ( anode ) + { + *anode = node; + node->ref_count++; + } + + Exit: + return error; + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_SBitCache_LookupScaler( FTC_SBitCache cache, + FTC_Scaler scaler, + FT_ULong load_flags, + FT_UInt gindex, + FTC_SBit *ansbit, + FTC_Node *anode ) + { + FT_Error error; + FTC_BasicQueryRec query; + FTC_Node node = 0; /* make compiler happy */ + FT_PtrDist hash; + + + if ( anode ) + *anode = NULL; + + /* other argument checks delayed to FTC_Cache_Lookup */ + if ( !ansbit || !scaler ) + return FTC_Err_Invalid_Argument; + + *ansbit = NULL; + + /* FT_Load_Glyph(), FT_Load_Char() take FT_UInt flags */ + if ( load_flags > FT_UINT_MAX ) + { + FT_TRACE1(( "FTC_ImageCache_LookupScaler: higher bits in load_flags" )); + FT_TRACE1(( "0x%x are dropped\n", (load_flags & ~((FT_ULong)FT_UINT_MAX)) )); + } + + query.attrs.scaler = scaler[0]; + query.attrs.load_flags = (FT_UInt)load_flags; + + /* beware, the hash must be the same for all glyph ranges! */ + hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + + gindex / FTC_SBIT_ITEMS_PER_NODE; + + FTC_GCACHE_LOOKUP_CMP( cache, + ftc_basic_family_compare, + FTC_SNode_Compare, + hash, gindex, + &query, + node, + error ); + if ( error ) + goto Exit; + + *ansbit = FTC_SNODE( node )->sbits + + ( gindex - FTC_GNODE( node )->gindex ); + + if ( anode ) + { + *anode = node; + node->ref_count++; + } + + Exit: + return error; + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_EXPORT( FT_Error ) + FTC_SBit_Cache_New( FTC_Manager manager, + FTC_SBitCache *acache ); + + FT_EXPORT( FT_Error ) + FTC_SBit_Cache_Lookup( FTC_SBitCache cache, + FTC_OldImage_Desc* desc, + FT_UInt gindex, + FTC_SBit *ansbit ); + + + FT_EXPORT_DEF( FT_Error ) + FTC_SBit_Cache_New( FTC_Manager manager, + FTC_SBitCache *acache ) + { + return FTC_SBitCache_New( manager, (FTC_SBitCache*)acache ); + } + + + FT_EXPORT_DEF( FT_Error ) + FTC_SBit_Cache_Lookup( FTC_SBitCache cache, + FTC_OldImage_Desc* desc, + FT_UInt gindex, + FTC_SBit *ansbit ) + { + FTC_ImageTypeRec type0; + + + if ( !desc ) + return FTC_Err_Invalid_Argument; + + ftc_image_type_from_old_desc( &type0, desc ); + + return FTC_SBitCache_Lookup( (FTC_SBitCache)cache, + &type0, + gindex, + ansbit, + NULL ); + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + +/* END */ diff --git a/src/cache/ftccache.c b/src/cache/ftccache.c new file mode 100644 index 0000000..f01c403 --- /dev/null +++ b/src/cache/ftccache.c @@ -0,0 +1,626 @@ +/***************************************************************************/ +/* */ +/* ftccache.c */ +/* */ +/* The FreeType internal cache interface (body). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, */ +/* 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include "ftcmanag.h" +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H + +#include "ftccback.h" +#include "ftcerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_cache + + +#define FTC_HASH_MAX_LOAD 2 +#define FTC_HASH_MIN_LOAD 1 +#define FTC_HASH_SUB_LOAD ( FTC_HASH_MAX_LOAD - FTC_HASH_MIN_LOAD ) + + /* this one _must_ be a power of 2! */ +#define FTC_HASH_INITIAL_SIZE 8 + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CACHE NODE DEFINITIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* add a new node to the head of the manager's circular MRU list */ + static void + ftc_node_mru_link( FTC_Node node, + FTC_Manager manager ) + { + void *nl = &manager->nodes_list; + + + FTC_MruNode_Prepend( (FTC_MruNode*)nl, + (FTC_MruNode)node ); + manager->num_nodes++; + } + + + /* remove a node from the manager's MRU list */ + static void + ftc_node_mru_unlink( FTC_Node node, + FTC_Manager manager ) + { + void *nl = &manager->nodes_list; + + + FTC_MruNode_Remove( (FTC_MruNode*)nl, + (FTC_MruNode)node ); + manager->num_nodes--; + } + + +#ifndef FTC_INLINE + + /* move a node to the head of the manager's MRU list */ + static void + ftc_node_mru_up( FTC_Node node, + FTC_Manager manager ) + { + FTC_MruNode_Up( (FTC_MruNode*)&manager->nodes_list, + (FTC_MruNode)node ); + } + + + /* get a top bucket for specified hash from cache, + * body for FTC_NODE__TOP_FOR_HASH( cache, hash ) + */ + FT_LOCAL_DEF( FTC_Node* ) + ftc_get_top_node_for_hash( FTC_Cache cache, + FT_PtrDist hash ) + { + FTC_Node* pnode; + FT_UInt idx; + + + idx = (FT_UInt)( hash & cache->mask ); + if ( idx < cache->p ) + idx = (FT_UInt)( hash & ( 2 * cache->mask + 1 ) ); + pnode = cache->buckets + idx; + return pnode; + } + +#endif /* !FTC_INLINE */ + + + /* Note that this function cannot fail. If we cannot re-size the + * buckets array appropriately, we simply degrade the hash table's + * performance! + */ + static void + ftc_cache_resize( FTC_Cache cache ) + { + for (;;) + { + FTC_Node node, *pnode; + FT_UFast p = cache->p; + FT_UFast mask = cache->mask; + FT_UFast count = mask + p + 1; /* number of buckets */ + + + /* do we need to shrink the buckets array? */ + if ( cache->slack < 0 ) + { + FTC_Node new_list = NULL; + + + /* try to expand the buckets array _before_ splitting + * the bucket lists + */ + if ( p >= mask ) + { + FT_Memory memory = cache->memory; + FT_Error error; + + + /* if we can't expand the array, leave immediately */ + if ( FT_RENEW_ARRAY( cache->buckets, + ( mask + 1 ) * 2, ( mask + 1 ) * 4 ) ) + break; + } + + /* split a single bucket */ + pnode = cache->buckets + p; + + for (;;) + { + node = *pnode; + if ( node == NULL ) + break; + + if ( node->hash & ( mask + 1 ) ) + { + *pnode = node->link; + node->link = new_list; + new_list = node; + } + else + pnode = &node->link; + } + + cache->buckets[p + mask + 1] = new_list; + + cache->slack += FTC_HASH_MAX_LOAD; + + if ( p >= mask ) + { + cache->mask = 2 * mask + 1; + cache->p = 0; + } + else + cache->p = p + 1; + } + + /* do we need to expand the buckets array? */ + else if ( cache->slack > (FT_Long)count * FTC_HASH_SUB_LOAD ) + { + FT_UFast old_index = p + mask; + FTC_Node* pold; + + + if ( old_index + 1 <= FTC_HASH_INITIAL_SIZE ) + break; + + if ( p == 0 ) + { + FT_Memory memory = cache->memory; + FT_Error error; + + + /* if we can't shrink the array, leave immediately */ + if ( FT_RENEW_ARRAY( cache->buckets, + ( mask + 1 ) * 2, mask + 1 ) ) + break; + + cache->mask >>= 1; + p = cache->mask; + } + else + p--; + + pnode = cache->buckets + p; + while ( *pnode ) + pnode = &(*pnode)->link; + + pold = cache->buckets + old_index; + *pnode = *pold; + *pold = NULL; + + cache->slack -= FTC_HASH_MAX_LOAD; + cache->p = p; + } + + /* otherwise, the hash table is balanced */ + else + break; + } + } + + + /* remove a node from its cache's hash table */ + static void + ftc_node_hash_unlink( FTC_Node node0, + FTC_Cache cache ) + { + FTC_Node *pnode = FTC_NODE__TOP_FOR_HASH( cache, node0->hash ); + + + for (;;) + { + FTC_Node node = *pnode; + + + if ( node == NULL ) + { + FT_TRACE0(( "ftc_node_hash_unlink: unknown node\n" )); + return; + } + + if ( node == node0 ) + break; + + pnode = &(*pnode)->link; + } + + *pnode = node0->link; + node0->link = NULL; + + cache->slack++; + ftc_cache_resize( cache ); + } + + + /* add a node to the `top' of its cache's hash table */ + static void + ftc_node_hash_link( FTC_Node node, + FTC_Cache cache ) + { + FTC_Node *pnode = FTC_NODE__TOP_FOR_HASH( cache, node->hash ); + + + node->link = *pnode; + *pnode = node; + + cache->slack--; + ftc_cache_resize( cache ); + } + + + /* remove a node from the cache manager */ +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_BASE_DEF( void ) +#else + FT_LOCAL_DEF( void ) +#endif + ftc_node_destroy( FTC_Node node, + FTC_Manager manager ) + { + FTC_Cache cache; + + +#ifdef FT_DEBUG_ERROR + /* find node's cache */ + if ( node->cache_index >= manager->num_caches ) + { + FT_TRACE0(( "ftc_node_destroy: invalid node handle\n" )); + return; + } +#endif + + cache = manager->caches[node->cache_index]; + +#ifdef FT_DEBUG_ERROR + if ( cache == NULL ) + { + FT_TRACE0(( "ftc_node_destroy: invalid node handle\n" )); + return; + } +#endif + + manager->cur_weight -= cache->clazz.node_weight( node, cache ); + + /* remove node from mru list */ + ftc_node_mru_unlink( node, manager ); + + /* remove node from cache's hash table */ + ftc_node_hash_unlink( node, cache ); + + /* now finalize it */ + cache->clazz.node_free( node, cache ); + +#if 0 + /* check, just in case of general corruption :-) */ + if ( manager->num_nodes == 0 ) + FT_TRACE0(( "ftc_node_destroy: invalid cache node count (%d)\n", + manager->num_nodes )); +#endif + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** ABSTRACT CACHE CLASS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + FTC_Cache_Init( FTC_Cache cache ) + { + return ftc_cache_init( cache ); + } + + + FT_LOCAL_DEF( FT_Error ) + ftc_cache_init( FTC_Cache cache ) + { + FT_Memory memory = cache->memory; + FT_Error error; + + + cache->p = 0; + cache->mask = FTC_HASH_INITIAL_SIZE - 1; + cache->slack = FTC_HASH_INITIAL_SIZE * FTC_HASH_MAX_LOAD; + + (void)FT_NEW_ARRAY( cache->buckets, FTC_HASH_INITIAL_SIZE * 2 ); + return error; + } + + + static void + FTC_Cache_Clear( FTC_Cache cache ) + { + if ( cache && cache->buckets ) + { + FTC_Manager manager = cache->manager; + FT_UFast i; + FT_UFast count; + + + count = cache->p + cache->mask + 1; + + for ( i = 0; i < count; i++ ) + { + FTC_Node *pnode = cache->buckets + i, next, node = *pnode; + + + while ( node ) + { + next = node->link; + node->link = NULL; + + /* remove node from mru list */ + ftc_node_mru_unlink( node, manager ); + + /* now finalize it */ + manager->cur_weight -= cache->clazz.node_weight( node, cache ); + + cache->clazz.node_free( node, cache ); + node = next; + } + cache->buckets[i] = NULL; + } + ftc_cache_resize( cache ); + } + } + + + FT_LOCAL_DEF( void ) + ftc_cache_done( FTC_Cache cache ) + { + if ( cache->memory ) + { + FT_Memory memory = cache->memory; + + + FTC_Cache_Clear( cache ); + + FT_FREE( cache->buckets ); + cache->mask = 0; + cache->p = 0; + cache->slack = 0; + + cache->memory = NULL; + } + } + + + FT_LOCAL_DEF( void ) + FTC_Cache_Done( FTC_Cache cache ) + { + ftc_cache_done( cache ); + } + + + static void + ftc_cache_add( FTC_Cache cache, + FT_PtrDist hash, + FTC_Node node ) + { + node->hash = hash; + node->cache_index = (FT_UInt16)cache->index; + node->ref_count = 0; + + ftc_node_hash_link( node, cache ); + ftc_node_mru_link( node, cache->manager ); + + { + FTC_Manager manager = cache->manager; + + + manager->cur_weight += cache->clazz.node_weight( node, cache ); + + if ( manager->cur_weight >= manager->max_weight ) + { + node->ref_count++; + FTC_Manager_Compress( manager ); + node->ref_count--; + } + } + } + + + FT_LOCAL_DEF( FT_Error ) + FTC_Cache_NewNode( FTC_Cache cache, + FT_PtrDist hash, + FT_Pointer query, + FTC_Node *anode ) + { + FT_Error error; + FTC_Node node; + + + /* + * We use the FTC_CACHE_TRYLOOP macros to support out-of-memory + * errors (OOM) correctly, i.e., by flushing the cache progressively + * in order to make more room. + */ + + FTC_CACHE_TRYLOOP( cache ) + { + error = cache->clazz.node_new( &node, query, cache ); + } + FTC_CACHE_TRYLOOP_END( NULL ); + + if ( error ) + node = NULL; + else + { + /* don't assume that the cache has the same number of buckets, since + * our allocation request might have triggered global cache flushing + */ + ftc_cache_add( cache, hash, node ); + } + + *anode = node; + return error; + } + + +#ifndef FTC_INLINE + + FT_LOCAL_DEF( FT_Error ) + FTC_Cache_Lookup( FTC_Cache cache, + FT_PtrDist hash, + FT_Pointer query, + FTC_Node *anode ) + { + FTC_Node* bucket; + FTC_Node* pnode; + FTC_Node node; + FT_Error error = FTC_Err_Ok; + FT_Bool list_changed = FALSE; + + FTC_Node_CompareFunc compare = cache->clazz.node_compare; + + + if ( cache == NULL || anode == NULL ) + return FTC_Err_Invalid_Argument; + + /* Go to the `top' node of the list sharing same masked hash */ + bucket = pnode = FTC_NODE__TOP_FOR_HASH( cache, hash ); + + /* Lookup a node with exactly same hash and queried properties. */ + /* NOTE: _nodcomp() may change the linked list to reduce memory. */ + for (;;) + { + node = *pnode; + if ( node == NULL ) + goto NewNode; + + if ( node->hash == hash && + compare( node, query, cache, &list_changed ) ) + break; + + pnode = &node->link; + } + + if ( list_changed ) + { + /* Update bucket by modified linked list */ + bucket = pnode = FTC_NODE__TOP_FOR_HASH( cache, hash ); + + /* Update pnode by modified linked list */ + while ( *pnode != node ) + { + if ( *pnode == NULL ) + { + FT_ERROR(( "FTC_Cache_Lookup: oops!!! node missing\n" )); + goto NewNode; + } + else + pnode = &((*pnode)->link); + } + } + + /* Reorder the list to move the found node to the `top' */ + if ( node != *bucket ) + { + *pnode = node->link; + node->link = *bucket; + *bucket = node; + } + + /* move to head of MRU list */ + { + FTC_Manager manager = cache->manager; + + + if ( node != manager->nodes_list ) + ftc_node_mru_up( node, manager ); + } + *anode = node; + + return error; + + NewNode: + return FTC_Cache_NewNode( cache, hash, query, anode ); + } + +#endif /* !FTC_INLINE */ + + + FT_LOCAL_DEF( void ) + FTC_Cache_RemoveFaceID( FTC_Cache cache, + FTC_FaceID face_id ) + { + FT_UFast i, count; + FTC_Manager manager = cache->manager; + FTC_Node frees = NULL; + + + count = cache->p + cache->mask + 1; + for ( i = 0; i < count; i++ ) + { + FTC_Node* bucket = cache->buckets + i; + FTC_Node* pnode = bucket; + + + for ( ;; ) + { + FTC_Node node = *pnode; + FT_Bool list_changed = FALSE; + + + if ( node == NULL ) + break; + + if ( cache->clazz.node_remove_faceid( node, face_id, + cache, &list_changed ) ) + { + *pnode = node->link; + node->link = frees; + frees = node; + } + else + pnode = &node->link; + } + } + + /* remove all nodes in the free list */ + while ( frees ) + { + FTC_Node node; + + + node = frees; + frees = node->link; + + manager->cur_weight -= cache->clazz.node_weight( node, cache ); + ftc_node_mru_unlink( node, manager ); + + cache->clazz.node_free( node, cache ); + + cache->slack++; + } + + ftc_cache_resize( cache ); + } + + +/* END */ diff --git a/src/cache/ftccache.h b/src/cache/ftccache.h new file mode 100644 index 0000000..d60984f --- /dev/null +++ b/src/cache/ftccache.h @@ -0,0 +1,359 @@ +/***************************************************************************/ +/* */ +/* ftccache.h */ +/* */ +/* FreeType internal cache interface (specification). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, */ +/* 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTCCACHE_H__ +#define __FTCCACHE_H__ + + +#include "ftcmru.h" + +FT_BEGIN_HEADER + +#define _FTC_FACE_ID_HASH( i ) \ + ((FT_PtrDist)(( (FT_PtrDist)(i) >> 3 ) ^ ( (FT_PtrDist)(i) << 7 ))) + + /* handle to cache object */ + typedef struct FTC_CacheRec_* FTC_Cache; + + /* handle to cache class */ + typedef const struct FTC_CacheClassRec_* FTC_CacheClass; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CACHE NODE DEFINITIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* Each cache controls one or more cache nodes. Each node is part of */ + /* the global_lru list of the manager. Its `data' field however is used */ + /* as a reference count for now. */ + /* */ + /* A node can be anything, depending on the type of information held by */ + /* the cache. It can be an individual glyph image, a set of bitmaps */ + /* glyphs for a given size, some metrics, etc. */ + /* */ + /*************************************************************************/ + + /* structure size should be 20 bytes on 32-bits machines */ + typedef struct FTC_NodeRec_ + { + FTC_MruNodeRec mru; /* circular mru list pointer */ + FTC_Node link; /* used for hashing */ + FT_PtrDist hash; /* used for hashing too */ + FT_UShort cache_index; /* index of cache the node belongs to */ + FT_Short ref_count; /* reference count for this node */ + + } FTC_NodeRec; + + +#define FTC_NODE( x ) ( (FTC_Node)(x) ) +#define FTC_NODE_P( x ) ( (FTC_Node*)(x) ) + +#define FTC_NODE__NEXT( x ) FTC_NODE( (x)->mru.next ) +#define FTC_NODE__PREV( x ) FTC_NODE( (x)->mru.prev ) + +#ifdef FTC_INLINE +#define FTC_NODE__TOP_FOR_HASH( cache, hash ) \ + ( ( cache )->buckets + \ + ( ( ( ( hash ) & ( cache )->mask ) < ( cache )->p ) \ + ? ( ( hash ) & ( ( cache )->mask * 2 + 1 ) ) \ + : ( ( hash ) & ( cache )->mask ) ) ) +#else + FT_LOCAL( FTC_Node* ) + ftc_get_top_node_for_hash( FTC_Cache cache, + FT_PtrDist hash ); +#define FTC_NODE__TOP_FOR_HASH( cache, hash ) \ + ftc_get_top_node_for_hash( ( cache ), ( hash ) ) +#endif + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_BASE( void ) + ftc_node_destroy( FTC_Node node, + FTC_Manager manager ); +#endif + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CACHE DEFINITIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* initialize a new cache node */ + typedef FT_Error + (*FTC_Node_NewFunc)( FTC_Node *pnode, + FT_Pointer query, + FTC_Cache cache ); + + typedef FT_Offset + (*FTC_Node_WeightFunc)( FTC_Node node, + FTC_Cache cache ); + + /* compare a node to a given key pair */ + typedef FT_Bool + (*FTC_Node_CompareFunc)( FTC_Node node, + FT_Pointer key, + FTC_Cache cache, + FT_Bool* list_changed ); + + + typedef void + (*FTC_Node_FreeFunc)( FTC_Node node, + FTC_Cache cache ); + + typedef FT_Error + (*FTC_Cache_InitFunc)( FTC_Cache cache ); + + typedef void + (*FTC_Cache_DoneFunc)( FTC_Cache cache ); + + + typedef struct FTC_CacheClassRec_ + { + FTC_Node_NewFunc node_new; + FTC_Node_WeightFunc node_weight; + FTC_Node_CompareFunc node_compare; + FTC_Node_CompareFunc node_remove_faceid; + FTC_Node_FreeFunc node_free; + + FT_Offset cache_size; + FTC_Cache_InitFunc cache_init; + FTC_Cache_DoneFunc cache_done; + + } FTC_CacheClassRec; + + + /* each cache really implements a dynamic hash table to manage its nodes */ + typedef struct FTC_CacheRec_ + { + FT_UFast p; + FT_UFast mask; + FT_Long slack; + FTC_Node* buckets; + + FTC_CacheClassRec clazz; /* local copy, for speed */ + + FTC_Manager manager; + FT_Memory memory; + FT_UInt index; /* in manager's table */ + + FTC_CacheClass org_class; /* original class pointer */ + + } FTC_CacheRec; + + +#define FTC_CACHE( x ) ( (FTC_Cache)(x) ) +#define FTC_CACHE_P( x ) ( (FTC_Cache*)(x) ) + + + /* default cache initialize */ + FT_LOCAL( FT_Error ) + FTC_Cache_Init( FTC_Cache cache ); + + /* default cache finalizer */ + FT_LOCAL( void ) + FTC_Cache_Done( FTC_Cache cache ); + + /* Call this function to look up the cache. If no corresponding + * node is found, a new one is automatically created. This function + * is capable of flushing the cache adequately to make room for the + * new cache object. + */ + +#ifndef FTC_INLINE + FT_LOCAL( FT_Error ) + FTC_Cache_Lookup( FTC_Cache cache, + FT_PtrDist hash, + FT_Pointer query, + FTC_Node *anode ); +#endif + + FT_LOCAL( FT_Error ) + FTC_Cache_NewNode( FTC_Cache cache, + FT_PtrDist hash, + FT_Pointer query, + FTC_Node *anode ); + + /* Remove all nodes that relate to a given face_id. This is useful + * when un-installing fonts. Note that if a cache node relates to + * the face_id but is locked (i.e., has `ref_count > 0'), the node + * will _not_ be destroyed, but its internal face_id reference will + * be modified. + * + * The final result will be that the node will never come back + * in further lookup requests, and will be flushed on demand from + * the cache normally when its reference count reaches 0. + */ + FT_LOCAL( void ) + FTC_Cache_RemoveFaceID( FTC_Cache cache, + FTC_FaceID face_id ); + + +#ifdef FTC_INLINE + +#define FTC_CACHE_LOOKUP_CMP( cache, nodecmp, hash, query, node, error ) \ + FT_BEGIN_STMNT \ + FTC_Node *_bucket, *_pnode, _node; \ + FTC_Cache _cache = FTC_CACHE(cache); \ + FT_PtrDist _hash = (FT_PtrDist)(hash); \ + FTC_Node_CompareFunc _nodcomp = (FTC_Node_CompareFunc)(nodecmp); \ + FT_Bool _list_changed = FALSE; \ + \ + \ + error = FTC_Err_Ok; \ + node = NULL; \ + \ + /* Go to the `top' node of the list sharing same masked hash */ \ + _bucket = _pnode = FTC_NODE__TOP_FOR_HASH( _cache, _hash ); \ + \ + /* Look up a node with identical hash and queried properties. */ \ + /* NOTE: _nodcomp() may change the linked list to reduce memory. */ \ + for (;;) \ + { \ + _node = *_pnode; \ + if ( _node == NULL ) \ + goto _NewNode; \ + \ + if ( _node->hash == _hash && \ + _nodcomp( _node, query, _cache, &_list_changed ) ) \ + break; \ + \ + _pnode = &_node->link; \ + } \ + \ + if ( _list_changed ) \ + { \ + /* Update _bucket by possibly modified linked list */ \ + _bucket = _pnode = FTC_NODE__TOP_FOR_HASH( _cache, _hash ); \ + \ + /* Update _pnode by possibly modified linked list */ \ + while ( *_pnode != _node ) \ + { \ + if ( *_pnode == NULL ) \ + { \ + FT_ERROR(( "FTC_CACHE_LOOKUP_CMP: oops!!! node missing\n" )); \ + goto _NewNode; \ + } \ + else \ + _pnode = &((*_pnode)->link); \ + } \ + } \ + \ + /* Reorder the list to move the found node to the `top' */ \ + if ( _node != *_bucket ) \ + { \ + *_pnode = _node->link; \ + _node->link = *_bucket; \ + *_bucket = _node; \ + } \ + \ + /* Update MRU list */ \ + { \ + FTC_Manager _manager = _cache->manager; \ + void* _nl = &_manager->nodes_list; \ + \ + \ + if ( _node != _manager->nodes_list ) \ + FTC_MruNode_Up( (FTC_MruNode*)_nl, \ + (FTC_MruNode)_node ); \ + } \ + goto _Ok; \ + \ + _NewNode: \ + error = FTC_Cache_NewNode( _cache, _hash, query, &_node ); \ + \ + _Ok: \ + node = _node; \ + FT_END_STMNT + +#else /* !FTC_INLINE */ + +#define FTC_CACHE_LOOKUP_CMP( cache, nodecmp, hash, query, node, error ) \ + FT_BEGIN_STMNT \ + error = FTC_Cache_Lookup( FTC_CACHE( cache ), hash, query, \ + (FTC_Node*)&(node) ); \ + FT_END_STMNT + +#endif /* !FTC_INLINE */ + + + /* + * This macro, together with FTC_CACHE_TRYLOOP_END, defines a retry + * loop to flush the cache repeatedly in case of memory overflows. + * + * It is used when creating a new cache node, or within a lookup + * that needs to allocate data (e.g. the sbit cache lookup). + * + * Example: + * + * { + * FTC_CACHE_TRYLOOP( cache ) + * error = load_data( ... ); + * FTC_CACHE_TRYLOOP_END() + * } + * + */ +#define FTC_CACHE_TRYLOOP( cache ) \ + { \ + FTC_Manager _try_manager = FTC_CACHE( cache )->manager; \ + FT_UInt _try_count = 4; \ + \ + \ + for (;;) \ + { \ + FT_UInt _try_done; + + +#define FTC_CACHE_TRYLOOP_END( list_changed ) \ + if ( !error || error != FTC_Err_Out_Of_Memory ) \ + break; \ + \ + _try_done = FTC_Manager_FlushN( _try_manager, _try_count ); \ + if ( _try_done > 0 && ( list_changed ) ) \ + *(FT_Bool*)( list_changed ) = TRUE; \ + \ + if ( _try_done == 0 ) \ + break; \ + \ + if ( _try_done == _try_count ) \ + { \ + _try_count *= 2; \ + if ( _try_count < _try_done || \ + _try_count > _try_manager->num_nodes ) \ + _try_count = _try_manager->num_nodes; \ + } \ + } \ + } + + /* */ + +FT_END_HEADER + + +#endif /* __FTCCACHE_H__ */ + + +/* END */ diff --git a/src/cache/ftccback.h b/src/cache/ftccback.h new file mode 100644 index 0000000..80ec9ce --- /dev/null +++ b/src/cache/ftccback.h @@ -0,0 +1,92 @@ +/***************************************************************************/ +/* */ +/* ftccback.h */ +/* */ +/* Callback functions of the caching sub-system (specification only). */ +/* */ +/* Copyright 2004, 2005, 2006, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#ifndef __FTCCBACK_H__ +#define __FTCCBACK_H__ + +#include <ft2build.h> +#include FT_CACHE_H +#include "ftcmru.h" +#include "ftcimage.h" +#include "ftcmanag.h" +#include "ftcglyph.h" +#include "ftcsbits.h" + + + FT_LOCAL( void ) + ftc_inode_free( FTC_Node inode, + FTC_Cache cache ); + + FT_LOCAL( FT_Error ) + ftc_inode_new( FTC_Node *pinode, + FT_Pointer gquery, + FTC_Cache cache ); + + FT_LOCAL( FT_Offset ) + ftc_inode_weight( FTC_Node inode, + FTC_Cache cache ); + + + FT_LOCAL( void ) + ftc_snode_free( FTC_Node snode, + FTC_Cache cache ); + + FT_LOCAL( FT_Error ) + ftc_snode_new( FTC_Node *psnode, + FT_Pointer gquery, + FTC_Cache cache ); + + FT_LOCAL( FT_Offset ) + ftc_snode_weight( FTC_Node snode, + FTC_Cache cache ); + + FT_LOCAL( FT_Bool ) + ftc_snode_compare( FTC_Node snode, + FT_Pointer gquery, + FTC_Cache cache, + FT_Bool* list_changed ); + + + FT_LOCAL( FT_Bool ) + ftc_gnode_compare( FTC_Node gnode, + FT_Pointer gquery, + FTC_Cache cache, + FT_Bool* list_changed ); + + + FT_LOCAL( FT_Error ) + ftc_gcache_init( FTC_Cache cache ); + + FT_LOCAL( void ) + ftc_gcache_done( FTC_Cache cache ); + + + FT_LOCAL( FT_Error ) + ftc_cache_init( FTC_Cache cache ); + + FT_LOCAL( void ) + ftc_cache_done( FTC_Cache cache ); + +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + FT_LOCAL( void ) + ftc_node_destroy( FTC_Node node, + FTC_Manager manager ); +#endif + +#endif /* __FTCCBACK_H__ */ + +/* END */ diff --git a/src/cache/ftccmap.c b/src/cache/ftccmap.c new file mode 100644 index 0000000..ad436ef --- /dev/null +++ b/src/cache/ftccmap.c @@ -0,0 +1,438 @@ +/***************************************************************************/ +/* */ +/* ftccmap.c */ +/* */ +/* FreeType CharMap cache (body) */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ +/* 2010, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_CACHE_H +#include "ftcmanag.h" +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H + +#include "ftccback.h" +#include "ftcerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_cache + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + typedef enum FTC_OldCMapType_ + { + FTC_OLD_CMAP_BY_INDEX = 0, + FTC_OLD_CMAP_BY_ENCODING = 1, + FTC_OLD_CMAP_BY_ID = 2 + + } FTC_OldCMapType; + + + typedef struct FTC_OldCMapIdRec_ + { + FT_UInt platform; + FT_UInt encoding; + + } FTC_OldCMapIdRec, *FTC_OldCMapId; + + + typedef struct FTC_OldCMapDescRec_ + { + FTC_FaceID face_id; + FTC_OldCMapType type; + + union + { + FT_UInt index; + FT_Encoding encoding; + FTC_OldCMapIdRec id; + + } u; + + } FTC_OldCMapDescRec, *FTC_OldCMapDesc; + +#endif /* FT_CONFIG_OLD_INTERNALS */ + + + /*************************************************************************/ + /* */ + /* Each FTC_CMapNode contains a simple array to map a range of character */ + /* codes to equivalent glyph indices. */ + /* */ + /* For now, the implementation is very basic: Each node maps a range of */ + /* 128 consecutive character codes to their corresponding glyph indices. */ + /* */ + /* We could do more complex things, but I don't think it is really very */ + /* useful. */ + /* */ + /*************************************************************************/ + + + /* number of glyph indices / character code per node */ +#define FTC_CMAP_INDICES_MAX 128 + + /* compute a query/node hash */ +#define FTC_CMAP_HASH( faceid, index, charcode ) \ + ( _FTC_FACE_ID_HASH( faceid ) + 211 * (index) + \ + ( (charcode) / FTC_CMAP_INDICES_MAX ) ) + + /* the charmap query */ + typedef struct FTC_CMapQueryRec_ + { + FTC_FaceID face_id; + FT_UInt cmap_index; + FT_UInt32 char_code; + + } FTC_CMapQueryRec, *FTC_CMapQuery; + +#define FTC_CMAP_QUERY( x ) ((FTC_CMapQuery)(x)) +#define FTC_CMAP_QUERY_HASH( x ) \ + FTC_CMAP_HASH( (x)->face_id, (x)->cmap_index, (x)->char_code ) + + /* the cmap cache node */ + typedef struct FTC_CMapNodeRec_ + { + FTC_NodeRec node; + FTC_FaceID face_id; + FT_UInt cmap_index; + FT_UInt32 first; /* first character in node */ + FT_UInt16 indices[FTC_CMAP_INDICES_MAX]; /* array of glyph indices */ + + } FTC_CMapNodeRec, *FTC_CMapNode; + +#define FTC_CMAP_NODE( x ) ( (FTC_CMapNode)( x ) ) +#define FTC_CMAP_NODE_HASH( x ) \ + FTC_CMAP_HASH( (x)->face_id, (x)->cmap_index, (x)->first ) + + /* if (indices[n] == FTC_CMAP_UNKNOWN), we assume that the corresponding */ + /* glyph indices haven't been queried through FT_Get_Glyph_Index() yet */ +#define FTC_CMAP_UNKNOWN ( (FT_UInt16)-1 ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CHARMAP NODES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_CALLBACK_DEF( void ) + ftc_cmap_node_free( FTC_Node ftcnode, + FTC_Cache cache ) + { + FTC_CMapNode node = (FTC_CMapNode)ftcnode; + FT_Memory memory = cache->memory; + + + FT_FREE( node ); + } + + + /* initialize a new cmap node */ + FT_CALLBACK_DEF( FT_Error ) + ftc_cmap_node_new( FTC_Node *ftcanode, + FT_Pointer ftcquery, + FTC_Cache cache ) + { + FTC_CMapNode *anode = (FTC_CMapNode*)ftcanode; + FTC_CMapQuery query = (FTC_CMapQuery)ftcquery; + FT_Error error; + FT_Memory memory = cache->memory; + FTC_CMapNode node = NULL; + FT_UInt nn; + + + if ( !FT_NEW( node ) ) + { + node->face_id = query->face_id; + node->cmap_index = query->cmap_index; + node->first = (query->char_code / FTC_CMAP_INDICES_MAX) * + FTC_CMAP_INDICES_MAX; + + for ( nn = 0; nn < FTC_CMAP_INDICES_MAX; nn++ ) + node->indices[nn] = FTC_CMAP_UNKNOWN; + } + + *anode = node; + return error; + } + + + /* compute the weight of a given cmap node */ + FT_CALLBACK_DEF( FT_Offset ) + ftc_cmap_node_weight( FTC_Node cnode, + FTC_Cache cache ) + { + FT_UNUSED( cnode ); + FT_UNUSED( cache ); + + return sizeof ( *cnode ); + } + + + /* compare a cmap node to a given query */ + FT_CALLBACK_DEF( FT_Bool ) + ftc_cmap_node_compare( FTC_Node ftcnode, + FT_Pointer ftcquery, + FTC_Cache cache, + FT_Bool* list_changed ) + { + FTC_CMapNode node = (FTC_CMapNode)ftcnode; + FTC_CMapQuery query = (FTC_CMapQuery)ftcquery; + FT_UNUSED( cache ); + + + if ( list_changed ) + *list_changed = FALSE; + if ( node->face_id == query->face_id && + node->cmap_index == query->cmap_index ) + { + FT_UInt32 offset = (FT_UInt32)( query->char_code - node->first ); + + + return FT_BOOL( offset < FTC_CMAP_INDICES_MAX ); + } + + return 0; + } + + + FT_CALLBACK_DEF( FT_Bool ) + ftc_cmap_node_remove_faceid( FTC_Node ftcnode, + FT_Pointer ftcface_id, + FTC_Cache cache, + FT_Bool* list_changed ) + { + FTC_CMapNode node = (FTC_CMapNode)ftcnode; + FTC_FaceID face_id = (FTC_FaceID)ftcface_id; + FT_UNUSED( cache ); + + + if ( list_changed ) + *list_changed = FALSE; + return FT_BOOL( node->face_id == face_id ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GLYPH IMAGE CACHE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_CALLBACK_TABLE_DEF + const FTC_CacheClassRec ftc_cmap_cache_class = + { + ftc_cmap_node_new, + ftc_cmap_node_weight, + ftc_cmap_node_compare, + ftc_cmap_node_remove_faceid, + ftc_cmap_node_free, + + sizeof ( FTC_CacheRec ), + ftc_cache_init, + ftc_cache_done, + }; + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_CMapCache_New( FTC_Manager manager, + FTC_CMapCache *acache ) + { + return FTC_Manager_RegisterCache( manager, + &ftc_cmap_cache_class, + FTC_CACHE_P( acache ) ); + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* + * Unfortunately, it is not possible to support binary backwards + * compatibility in the cmap cache. The FTC_CMapCache_Lookup signature + * changes were too deep, and there is no clever hackish way to detect + * what kind of structure we are being passed. + * + * On the other hand it seems that no production code is using this + * function on Unix distributions. + */ + +#endif + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_UInt ) + FTC_CMapCache_Lookup( FTC_CMapCache cmap_cache, + FTC_FaceID face_id, + FT_Int cmap_index, + FT_UInt32 char_code ) + { + FTC_Cache cache = FTC_CACHE( cmap_cache ); + FTC_CMapQueryRec query; + FTC_Node node; + FT_Error error; + FT_UInt gindex = 0; + FT_PtrDist hash; + FT_Int no_cmap_change = 0; + + + if ( cmap_index < 0 ) + { + /* Treat a negative cmap index as a special value, meaning that you */ + /* don't want to change the FT_Face's character map through this */ + /* call. This can be useful if the face requester callback already */ + /* sets the face's charmap to the appropriate value. */ + + no_cmap_change = 1; + cmap_index = 0; + } + + if ( !cache ) + { + FT_TRACE0(( "FTC_CMapCache_Lookup: bad arguments, returning 0\n" )); + return 0; + } + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + /* + * If cmap_index is greater than the maximum number of cachable + * charmaps, we assume the request is from a legacy rogue client + * using old internal header. See include/config/ftoption.h. + */ + if ( cmap_index > FT_MAX_CHARMAP_CACHEABLE && !no_cmap_change ) + { + FTC_OldCMapDesc desc = (FTC_OldCMapDesc) face_id; + + + char_code = (FT_UInt32)cmap_index; + query.face_id = desc->face_id; + + + switch ( desc->type ) + { + case FTC_OLD_CMAP_BY_INDEX: + query.cmap_index = desc->u.index; + query.char_code = (FT_UInt32)cmap_index; + break; + + case FTC_OLD_CMAP_BY_ENCODING: + { + FT_Face face; + + + error = FTC_Manager_LookupFace( cache->manager, desc->face_id, + &face ); + if ( error ) + return 0; + + FT_Select_Charmap( face, desc->u.encoding ); + + return FT_Get_Char_Index( face, char_code ); + } + + default: + return 0; + } + } + else + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + { + query.face_id = face_id; + query.cmap_index = (FT_UInt)cmap_index; + query.char_code = char_code; + } + + hash = FTC_CMAP_HASH( face_id, cmap_index, char_code ); + +#if 1 + FTC_CACHE_LOOKUP_CMP( cache, ftc_cmap_node_compare, hash, &query, + node, error ); +#else + error = FTC_Cache_Lookup( cache, hash, &query, &node ); +#endif + if ( error ) + goto Exit; + + FT_ASSERT( (FT_UInt)( char_code - FTC_CMAP_NODE( node )->first ) < + FTC_CMAP_INDICES_MAX ); + + /* something rotten can happen with rogue clients */ + if ( (FT_UInt)( char_code - FTC_CMAP_NODE( node )->first >= + FTC_CMAP_INDICES_MAX ) ) + return 0; /* XXX: should return appropriate error */ + + gindex = FTC_CMAP_NODE( node )->indices[char_code - + FTC_CMAP_NODE( node )->first]; + if ( gindex == FTC_CMAP_UNKNOWN ) + { + FT_Face face; + + + gindex = 0; + + error = FTC_Manager_LookupFace( cache->manager, + FTC_CMAP_NODE( node )->face_id, + &face ); + if ( error ) + goto Exit; + +#ifdef FT_MAX_CHARMAP_CACHEABLE + /* something rotten can happen with rogue clients */ + if ( cmap_index > FT_MAX_CHARMAP_CACHEABLE ) + return 0; /* XXX: should return appropriate error */ +#endif + + if ( (FT_UInt)cmap_index < (FT_UInt)face->num_charmaps ) + { + FT_CharMap old, cmap = NULL; + + + old = face->charmap; + cmap = face->charmaps[cmap_index]; + + if ( old != cmap && !no_cmap_change ) + FT_Set_Charmap( face, cmap ); + + gindex = FT_Get_Char_Index( face, char_code ); + + if ( old != cmap && !no_cmap_change ) + FT_Set_Charmap( face, old ); + } + + FTC_CMAP_NODE( node )->indices[char_code - + FTC_CMAP_NODE( node )->first] + = (FT_UShort)gindex; + } + + Exit: + return gindex; + } + + +/* END */ diff --git a/src/cache/ftcerror.h b/src/cache/ftcerror.h new file mode 100644 index 0000000..0e05570 --- /dev/null +++ b/src/cache/ftcerror.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* ftcerror.h */ +/* */ +/* Caching sub-system error codes (specification only). */ +/* */ +/* Copyright 2001, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the caching sub-system error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __FTCERROR_H__ +#define __FTCERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX FTC_Err_ +#define FT_ERR_BASE FT_Mod_Err_Cache + +#include FT_ERRORS_H + +#endif /* __FTCERROR_H__ */ + +/* END */ diff --git a/src/cache/ftcglyph.c b/src/cache/ftcglyph.c new file mode 100644 index 0000000..441e177 --- /dev/null +++ b/src/cache/ftcglyph.c @@ -0,0 +1,219 @@ +/***************************************************************************/ +/* */ +/* ftcglyph.c */ +/* */ +/* FreeType Glyph Image (FT_Glyph) cache (body). */ +/* */ +/* Copyright 2000-2001, 2003, 2004, 2006, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_CACHE_H +#include "ftcglyph.h" +#include FT_ERRORS_H + +#include "ftccback.h" +#include "ftcerror.h" + + + /* create a new chunk node, setting its cache index and ref count */ + FT_LOCAL_DEF( void ) + FTC_GNode_Init( FTC_GNode gnode, + FT_UInt gindex, + FTC_Family family ) + { + gnode->family = family; + gnode->gindex = gindex; + family->num_nodes++; + } + + + FT_LOCAL_DEF( void ) + FTC_GNode_UnselectFamily( FTC_GNode gnode, + FTC_Cache cache ) + { + FTC_Family family = gnode->family; + + + gnode->family = NULL; + if ( family && --family->num_nodes == 0 ) + FTC_FAMILY_FREE( family, cache ); + } + + + FT_LOCAL_DEF( void ) + FTC_GNode_Done( FTC_GNode gnode, + FTC_Cache cache ) + { + /* finalize the node */ + gnode->gindex = 0; + + FTC_GNode_UnselectFamily( gnode, cache ); + } + + + FT_LOCAL_DEF( FT_Bool ) + ftc_gnode_compare( FTC_Node ftcgnode, + FT_Pointer ftcgquery, + FTC_Cache cache, + FT_Bool* list_changed ) + { + FTC_GNode gnode = (FTC_GNode)ftcgnode; + FTC_GQuery gquery = (FTC_GQuery)ftcgquery; + FT_UNUSED( cache ); + + + if ( list_changed ) + *list_changed = FALSE; + return FT_BOOL( gnode->family == gquery->family && + gnode->gindex == gquery->gindex ); + } + + +#ifdef FTC_INLINE + + FT_LOCAL_DEF( FT_Bool ) + FTC_GNode_Compare( FTC_GNode gnode, + FTC_GQuery gquery, + FTC_Cache cache, + FT_Bool* list_changed ) + { + return ftc_gnode_compare( FTC_NODE( gnode ), gquery, + cache, list_changed ); + } + +#endif + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CHUNK SETS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + FTC_Family_Init( FTC_Family family, + FTC_Cache cache ) + { + FTC_GCacheClass clazz = FTC_CACHE__GCACHE_CLASS( cache ); + + + family->clazz = clazz->family_class; + family->num_nodes = 0; + family->cache = cache; + } + + + FT_LOCAL_DEF( FT_Error ) + ftc_gcache_init( FTC_Cache ftccache ) + { + FTC_GCache cache = (FTC_GCache)ftccache; + FT_Error error; + + + error = FTC_Cache_Init( FTC_CACHE( cache ) ); + if ( !error ) + { + FTC_GCacheClass clazz = (FTC_GCacheClass)FTC_CACHE( cache )->org_class; + + FTC_MruList_Init( &cache->families, + clazz->family_class, + 0, /* no maximum here! */ + cache, + FTC_CACHE( cache )->memory ); + } + + return error; + } + + +#if 0 + + FT_LOCAL_DEF( FT_Error ) + FTC_GCache_Init( FTC_GCache cache ) + { + return ftc_gcache_init( FTC_CACHE( cache ) ); + } + +#endif /* 0 */ + + + FT_LOCAL_DEF( void ) + ftc_gcache_done( FTC_Cache ftccache ) + { + FTC_GCache cache = (FTC_GCache)ftccache; + + + FTC_Cache_Done( (FTC_Cache)cache ); + FTC_MruList_Done( &cache->families ); + } + + +#if 0 + + FT_LOCAL_DEF( void ) + FTC_GCache_Done( FTC_GCache cache ) + { + ftc_gcache_done( FTC_CACHE( cache ) ); + } + +#endif /* 0 */ + + + FT_LOCAL_DEF( FT_Error ) + FTC_GCache_New( FTC_Manager manager, + FTC_GCacheClass clazz, + FTC_GCache *acache ) + { + return FTC_Manager_RegisterCache( manager, (FTC_CacheClass)clazz, + (FTC_Cache*)acache ); + } + + +#ifndef FTC_INLINE + + FT_LOCAL_DEF( FT_Error ) + FTC_GCache_Lookup( FTC_GCache cache, + FT_PtrDist hash, + FT_UInt gindex, + FTC_GQuery query, + FTC_Node *anode ) + { + FT_Error error; + + + query->gindex = gindex; + + FTC_MRULIST_LOOKUP( &cache->families, query, query->family, error ); + if ( !error ) + { + FTC_Family family = query->family; + + + /* prevent the family from being destroyed too early when an */ + /* out-of-memory condition occurs during glyph node initialization. */ + family->num_nodes++; + + error = FTC_Cache_Lookup( FTC_CACHE( cache ), hash, query, anode ); + + if ( --family->num_nodes == 0 ) + FTC_FAMILY_FREE( family, cache ); + } + return error; + } + +#endif /* !FTC_INLINE */ + + +/* END */ diff --git a/src/cache/ftcglyph.h b/src/cache/ftcglyph.h new file mode 100644 index 0000000..5fed19c --- /dev/null +++ b/src/cache/ftcglyph.h @@ -0,0 +1,329 @@ +/***************************************************************************/ +/* */ +/* ftcglyph.h */ +/* */ +/* FreeType abstract glyph cache (specification). */ +/* */ +/* Copyright 2000-2001, 2003, 2004, 2006, 2007, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* + * + * FTC_GCache is an _abstract_ cache object optimized to store glyph + * data. It works as follows: + * + * - It manages FTC_GNode objects. Each one of them can hold one or more + * glyph `items'. Item types are not specified in the FTC_GCache but + * in classes that extend it. + * + * - Glyph attributes, like face ID, character size, render mode, etc., + * can be grouped into abstract `glyph families'. This avoids storing + * the attributes within the FTC_GCache, since it is likely that many + * FTC_GNodes will belong to the same family in typical uses. + * + * - Each FTC_GNode is thus an FTC_Node with two additional fields: + * + * * gindex: A glyph index, or the first index in a glyph range. + * * family: A pointer to a glyph `family'. + * + * - Family types are not fully specific in the FTC_Family type, but + * by classes that extend it. + * + * Note that both FTC_ImageCache and FTC_SBitCache extend FTC_GCache. + * They share an FTC_Family sub-class called FTC_BasicFamily which is + * used to store the following data: face ID, pixel/point sizes, load + * flags. For more details see the file `src/cache/ftcbasic.c'. + * + * Client applications can extend FTC_GNode with their own FTC_GNode + * and FTC_Family sub-classes to implement more complex caches (e.g., + * handling automatic synthesis, like obliquing & emboldening, colored + * glyphs, etc.). + * + * See also the FTC_ICache & FTC_SCache classes in `ftcimage.h' and + * `ftcsbits.h', which both extend FTC_GCache with additional + * optimizations. + * + * A typical FTC_GCache implementation must provide at least the + * following: + * + * - FTC_GNode sub-class, e.g. MyNode, with relevant methods: + * my_node_new (must call FTC_GNode_Init) + * my_node_free (must call FTC_GNode_Done) + * my_node_compare (must call FTC_GNode_Compare) + * my_node_remove_faceid (must call ftc_gnode_unselect in case + * of match) + * + * - FTC_Family sub-class, e.g. MyFamily, with relevant methods: + * my_family_compare + * my_family_init + * my_family_reset (optional) + * my_family_done + * + * - FTC_GQuery sub-class, e.g. MyQuery, to hold cache-specific query + * data. + * + * - Constant structures for a FTC_GNodeClass. + * + * - MyCacheNew() can be implemented easily as a call to the convenience + * function FTC_GCache_New. + * + * - MyCacheLookup with a call to FTC_GCache_Lookup. This function will + * automatically: + * + * - Search for the corresponding family in the cache, or create + * a new one if necessary. Put it in FTC_GQUERY(myquery).family + * + * - Call FTC_Cache_Lookup. + * + * If it returns NULL, you should create a new node, then call + * ftc_cache_add as usual. + */ + + + /*************************************************************************/ + /* */ + /* Important: The functions defined in this file are only used to */ + /* implement an abstract glyph cache class. You need to */ + /* provide additional logic to implement a complete cache. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********* *********/ + /********* WARNING, THIS IS BETA CODE. *********/ + /********* *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#ifndef __FTCGLYPH_H__ +#define __FTCGLYPH_H__ + + +#include <ft2build.h> +#include "ftcmanag.h" + + +FT_BEGIN_HEADER + + + /* + * We can group glyphs into `families'. Each family correspond to a + * given face ID, character size, transform, etc. + * + * Families are implemented as MRU list nodes. They are + * reference-counted. + */ + + typedef struct FTC_FamilyRec_ + { + FTC_MruNodeRec mrunode; + FT_UInt num_nodes; /* current number of nodes in this family */ + FTC_Cache cache; + FTC_MruListClass clazz; + + } FTC_FamilyRec, *FTC_Family; + +#define FTC_FAMILY(x) ( (FTC_Family)(x) ) +#define FTC_FAMILY_P(x) ( (FTC_Family*)(x) ) + + + typedef struct FTC_GNodeRec_ + { + FTC_NodeRec node; + FTC_Family family; + FT_UInt gindex; + + } FTC_GNodeRec, *FTC_GNode; + +#define FTC_GNODE( x ) ( (FTC_GNode)(x) ) +#define FTC_GNODE_P( x ) ( (FTC_GNode*)(x) ) + + + typedef struct FTC_GQueryRec_ + { + FT_UInt gindex; + FTC_Family family; + + } FTC_GQueryRec, *FTC_GQuery; + +#define FTC_GQUERY( x ) ( (FTC_GQuery)(x) ) + + + /*************************************************************************/ + /* */ + /* These functions are exported so that they can be called from */ + /* user-provided cache classes; otherwise, they are really part of the */ + /* cache sub-system internals. */ + /* */ + + /* must be called by derived FTC_Node_InitFunc routines */ + FT_LOCAL( void ) + FTC_GNode_Init( FTC_GNode node, + FT_UInt gindex, /* glyph index for node */ + FTC_Family family ); + +#ifdef FTC_INLINE + + /* returns TRUE iff the query's glyph index correspond to the node; */ + /* this assumes that the `family' and `hash' fields of the query are */ + /* already correctly set */ + FT_LOCAL( FT_Bool ) + FTC_GNode_Compare( FTC_GNode gnode, + FTC_GQuery gquery, + FTC_Cache cache, + FT_Bool* list_changed ); + +#endif + + /* call this function to clear a node's family -- this is necessary */ + /* to implement the `node_remove_faceid' cache method correctly */ + FT_LOCAL( void ) + FTC_GNode_UnselectFamily( FTC_GNode gnode, + FTC_Cache cache ); + + /* must be called by derived FTC_Node_DoneFunc routines */ + FT_LOCAL( void ) + FTC_GNode_Done( FTC_GNode node, + FTC_Cache cache ); + + + FT_LOCAL( void ) + FTC_Family_Init( FTC_Family family, + FTC_Cache cache ); + + typedef struct FTC_GCacheRec_ + { + FTC_CacheRec cache; + FTC_MruListRec families; + + } FTC_GCacheRec, *FTC_GCache; + +#define FTC_GCACHE( x ) ((FTC_GCache)(x)) + + +#if 0 + /* can be used as @FTC_Cache_InitFunc */ + FT_LOCAL( FT_Error ) + FTC_GCache_Init( FTC_GCache cache ); +#endif + + +#if 0 + /* can be used as @FTC_Cache_DoneFunc */ + FT_LOCAL( void ) + FTC_GCache_Done( FTC_GCache cache ); +#endif + + + /* the glyph cache class adds fields for the family implementation */ + typedef struct FTC_GCacheClassRec_ + { + FTC_CacheClassRec clazz; + FTC_MruListClass family_class; + + } FTC_GCacheClassRec; + + typedef const FTC_GCacheClassRec* FTC_GCacheClass; + +#define FTC_GCACHE_CLASS( x ) ((FTC_GCacheClass)(x)) + +#define FTC_CACHE__GCACHE_CLASS( x ) \ + FTC_GCACHE_CLASS( FTC_CACHE(x)->org_class ) +#define FTC_CACHE__FAMILY_CLASS( x ) \ + ( (FTC_MruListClass)FTC_CACHE__GCACHE_CLASS( x )->family_class ) + + + /* convenience function; use it instead of FTC_Manager_Register_Cache */ + FT_LOCAL( FT_Error ) + FTC_GCache_New( FTC_Manager manager, + FTC_GCacheClass clazz, + FTC_GCache *acache ); + +#ifndef FTC_INLINE + FT_LOCAL( FT_Error ) + FTC_GCache_Lookup( FTC_GCache cache, + FT_PtrDist hash, + FT_UInt gindex, + FTC_GQuery query, + FTC_Node *anode ); +#endif + + + /* */ + + +#define FTC_FAMILY_FREE( family, cache ) \ + FTC_MruList_Remove( &FTC_GCACHE((cache))->families, \ + (FTC_MruNode)(family) ) + + +#ifdef FTC_INLINE + +#define FTC_GCACHE_LOOKUP_CMP( cache, famcmp, nodecmp, hash, \ + gindex, query, node, error ) \ + FT_BEGIN_STMNT \ + FTC_GCache _gcache = FTC_GCACHE( cache ); \ + FTC_GQuery _gquery = (FTC_GQuery)( query ); \ + FTC_MruNode_CompareFunc _fcompare = (FTC_MruNode_CompareFunc)(famcmp); \ + FTC_MruNode _mrunode; \ + \ + \ + _gquery->gindex = (gindex); \ + \ + FTC_MRULIST_LOOKUP_CMP( &_gcache->families, _gquery, _fcompare, \ + _mrunode, error ); \ + _gquery->family = FTC_FAMILY( _mrunode ); \ + if ( !error ) \ + { \ + FTC_Family _gqfamily = _gquery->family; \ + \ + \ + _gqfamily->num_nodes++; \ + \ + FTC_CACHE_LOOKUP_CMP( cache, nodecmp, hash, query, node, error ); \ + \ + if ( --_gqfamily->num_nodes == 0 ) \ + FTC_FAMILY_FREE( _gqfamily, _gcache ); \ + } \ + FT_END_STMNT + /* */ + +#else /* !FTC_INLINE */ + +#define FTC_GCACHE_LOOKUP_CMP( cache, famcmp, nodecmp, hash, \ + gindex, query, node, error ) \ + FT_BEGIN_STMNT \ + \ + error = FTC_GCache_Lookup( FTC_GCACHE( cache ), hash, gindex, \ + FTC_GQUERY( query ), &node ); \ + \ + FT_END_STMNT + +#endif /* !FTC_INLINE */ + + +FT_END_HEADER + + +#endif /* __FTCGLYPH_H__ */ + + +/* END */ diff --git a/src/cache/ftcimage.c b/src/cache/ftcimage.c new file mode 100644 index 0000000..c242ece --- /dev/null +++ b/src/cache/ftcimage.c @@ -0,0 +1,163 @@ +/***************************************************************************/ +/* */ +/* ftcimage.c */ +/* */ +/* FreeType Image cache (body). */ +/* */ +/* Copyright 2000-2001, 2003, 2004, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_CACHE_H +#include "ftcimage.h" +#include FT_INTERNAL_MEMORY_H + +#include "ftccback.h" +#include "ftcerror.h" + + + /* finalize a given glyph image node */ + FT_LOCAL_DEF( void ) + ftc_inode_free( FTC_Node ftcinode, + FTC_Cache cache ) + { + FTC_INode inode = (FTC_INode)ftcinode; + FT_Memory memory = cache->memory; + + + if ( inode->glyph ) + { + FT_Done_Glyph( inode->glyph ); + inode->glyph = NULL; + } + + FTC_GNode_Done( FTC_GNODE( inode ), cache ); + FT_FREE( inode ); + } + + + FT_LOCAL_DEF( void ) + FTC_INode_Free( FTC_INode inode, + FTC_Cache cache ) + { + ftc_inode_free( FTC_NODE( inode ), cache ); + } + + + /* initialize a new glyph image node */ + FT_LOCAL_DEF( FT_Error ) + FTC_INode_New( FTC_INode *pinode, + FTC_GQuery gquery, + FTC_Cache cache ) + { + FT_Memory memory = cache->memory; + FT_Error error; + FTC_INode inode = NULL; + + + if ( !FT_NEW( inode ) ) + { + FTC_GNode gnode = FTC_GNODE( inode ); + FTC_Family family = gquery->family; + FT_UInt gindex = gquery->gindex; + FTC_IFamilyClass clazz = FTC_CACHE__IFAMILY_CLASS( cache ); + + + /* initialize its inner fields */ + FTC_GNode_Init( gnode, gindex, family ); + + /* we will now load the glyph image */ + error = clazz->family_load_glyph( family, gindex, cache, + &inode->glyph ); + if ( error ) + { + FTC_INode_Free( inode, cache ); + inode = NULL; + } + } + + *pinode = inode; + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + ftc_inode_new( FTC_Node *ftcpinode, + FT_Pointer ftcgquery, + FTC_Cache cache ) + { + FTC_INode *pinode = (FTC_INode*)ftcpinode; + FTC_GQuery gquery = (FTC_GQuery)ftcgquery; + + + return FTC_INode_New( pinode, gquery, cache ); + } + + + FT_LOCAL_DEF( FT_Offset ) + ftc_inode_weight( FTC_Node ftcinode, + FTC_Cache ftccache ) + { + FTC_INode inode = (FTC_INode)ftcinode; + FT_Offset size = 0; + FT_Glyph glyph = inode->glyph; + + FT_UNUSED( ftccache ); + + + switch ( glyph->format ) + { + case FT_GLYPH_FORMAT_BITMAP: + { + FT_BitmapGlyph bitg; + + + bitg = (FT_BitmapGlyph)glyph; + size = bitg->bitmap.rows * ft_labs( bitg->bitmap.pitch ) + + sizeof ( *bitg ); + } + break; + + case FT_GLYPH_FORMAT_OUTLINE: + { + FT_OutlineGlyph outg; + + + outg = (FT_OutlineGlyph)glyph; + size = outg->outline.n_points * + ( sizeof ( FT_Vector ) + sizeof ( FT_Byte ) ) + + outg->outline.n_contours * sizeof ( FT_Short ) + + sizeof ( *outg ); + } + break; + + default: + ; + } + + size += sizeof ( *inode ); + return size; + } + + +#if 0 + + FT_LOCAL_DEF( FT_Offset ) + FTC_INode_Weight( FTC_INode inode ) + { + return ftc_inode_weight( FTC_NODE( inode ), NULL ); + } + +#endif /* 0 */ + + +/* END */ diff --git a/src/cache/ftcimage.h b/src/cache/ftcimage.h new file mode 100644 index 0000000..20d5d3e --- /dev/null +++ b/src/cache/ftcimage.h @@ -0,0 +1,107 @@ +/***************************************************************************/ +/* */ +/* ftcimage.h */ +/* */ +/* FreeType Generic Image cache (specification) */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* + * FTC_ICache is an _abstract_ cache used to store a single FT_Glyph + * image per cache node. + * + * FTC_ICache extends FTC_GCache. For an implementation example, + * see FTC_ImageCache in `src/cache/ftbasic.c'. + */ + + + /*************************************************************************/ + /* */ + /* Each image cache really manages FT_Glyph objects. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTCIMAGE_H__ +#define __FTCIMAGE_H__ + + +#include <ft2build.h> +#include FT_CACHE_H +#include "ftcglyph.h" + +FT_BEGIN_HEADER + + + /* the FT_Glyph image node type - we store only 1 glyph per node */ + typedef struct FTC_INodeRec_ + { + FTC_GNodeRec gnode; + FT_Glyph glyph; + + } FTC_INodeRec, *FTC_INode; + +#define FTC_INODE( x ) ( (FTC_INode)( x ) ) +#define FTC_INODE_GINDEX( x ) FTC_GNODE(x)->gindex +#define FTC_INODE_FAMILY( x ) FTC_GNODE(x)->family + + typedef FT_Error + (*FTC_IFamily_LoadGlyphFunc)( FTC_Family family, + FT_UInt gindex, + FTC_Cache cache, + FT_Glyph *aglyph ); + + typedef struct FTC_IFamilyClassRec_ + { + FTC_MruListClassRec clazz; + FTC_IFamily_LoadGlyphFunc family_load_glyph; + + } FTC_IFamilyClassRec; + + typedef const FTC_IFamilyClassRec* FTC_IFamilyClass; + +#define FTC_IFAMILY_CLASS( x ) ((FTC_IFamilyClass)(x)) + +#define FTC_CACHE__IFAMILY_CLASS( x ) \ + FTC_IFAMILY_CLASS( FTC_CACHE__GCACHE_CLASS(x)->family_class ) + + + /* can be used as a @FTC_Node_FreeFunc */ + FT_LOCAL( void ) + FTC_INode_Free( FTC_INode inode, + FTC_Cache cache ); + + /* Can be used as @FTC_Node_NewFunc. `gquery.index' and `gquery.family' + * must be set correctly. This function will call the `family_load_glyph' + * method to load the FT_Glyph into the cache node. + */ + FT_LOCAL( FT_Error ) + FTC_INode_New( FTC_INode *pinode, + FTC_GQuery gquery, + FTC_Cache cache ); + +#if 0 + /* can be used as @FTC_Node_WeightFunc */ + FT_LOCAL( FT_ULong ) + FTC_INode_Weight( FTC_INode inode ); +#endif + + + /* */ + +FT_END_HEADER + +#endif /* __FTCIMAGE_H__ */ + + +/* END */ diff --git a/src/cache/ftcmanag.c b/src/cache/ftcmanag.c new file mode 100644 index 0000000..76a510d --- /dev/null +++ b/src/cache/ftcmanag.c @@ -0,0 +1,743 @@ +/***************************************************************************/ +/* */ +/* ftcmanag.c */ +/* */ +/* FreeType Cache Manager (body). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_CACHE_H +#include "ftcmanag.h" +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_SIZES_H + +#include "ftccback.h" +#include "ftcerror.h" + +#ifdef FT_CONFIG_OPTION_PIC +#error "cache system does not support PIC yet" +#endif + + +#undef FT_COMPONENT +#define FT_COMPONENT trace_cache + +#define FTC_LRU_GET_MANAGER( lru ) ( (FTC_Manager)(lru)->user_data ) + + + static FT_Error + ftc_scaler_lookup_size( FTC_Manager manager, + FTC_Scaler scaler, + FT_Size *asize ) + { + FT_Face face; + FT_Size size = NULL; + FT_Error error; + + + error = FTC_Manager_LookupFace( manager, scaler->face_id, &face ); + if ( error ) + goto Exit; + + error = FT_New_Size( face, &size ); + if ( error ) + goto Exit; + + FT_Activate_Size( size ); + + if ( scaler->pixel ) + error = FT_Set_Pixel_Sizes( face, scaler->width, scaler->height ); + else + error = FT_Set_Char_Size( face, scaler->width, scaler->height, + scaler->x_res, scaler->y_res ); + if ( error ) + { + FT_Done_Size( size ); + size = NULL; + } + + Exit: + *asize = size; + return error; + } + + + typedef struct FTC_SizeNodeRec_ + { + FTC_MruNodeRec node; + FT_Size size; + FTC_ScalerRec scaler; + + } FTC_SizeNodeRec, *FTC_SizeNode; + +#define FTC_SIZE_NODE( x ) ( (FTC_SizeNode)( x ) ) + + + FT_CALLBACK_DEF( void ) + ftc_size_node_done( FTC_MruNode ftcnode, + FT_Pointer data ) + { + FTC_SizeNode node = (FTC_SizeNode)ftcnode; + FT_Size size = node->size; + FT_UNUSED( data ); + + + if ( size ) + FT_Done_Size( size ); + } + + + FT_CALLBACK_DEF( FT_Bool ) + ftc_size_node_compare( FTC_MruNode ftcnode, + FT_Pointer ftcscaler ) + { + FTC_SizeNode node = (FTC_SizeNode)ftcnode; + FTC_Scaler scaler = (FTC_Scaler)ftcscaler; + FTC_Scaler scaler0 = &node->scaler; + + + if ( FTC_SCALER_COMPARE( scaler0, scaler ) ) + { + FT_Activate_Size( node->size ); + return 1; + } + return 0; + } + + + FT_CALLBACK_DEF( FT_Error ) + ftc_size_node_init( FTC_MruNode ftcnode, + FT_Pointer ftcscaler, + FT_Pointer ftcmanager ) + { + FTC_SizeNode node = (FTC_SizeNode)ftcnode; + FTC_Scaler scaler = (FTC_Scaler)ftcscaler; + FTC_Manager manager = (FTC_Manager)ftcmanager; + + + node->scaler = scaler[0]; + + return ftc_scaler_lookup_size( manager, scaler, &node->size ); + } + + + FT_CALLBACK_DEF( FT_Error ) + ftc_size_node_reset( FTC_MruNode ftcnode, + FT_Pointer ftcscaler, + FT_Pointer ftcmanager ) + { + FTC_SizeNode node = (FTC_SizeNode)ftcnode; + FTC_Scaler scaler = (FTC_Scaler)ftcscaler; + FTC_Manager manager = (FTC_Manager)ftcmanager; + + + FT_Done_Size( node->size ); + + node->scaler = scaler[0]; + + return ftc_scaler_lookup_size( manager, scaler, &node->size ); + } + + + FT_CALLBACK_TABLE_DEF + const FTC_MruListClassRec ftc_size_list_class = + { + sizeof ( FTC_SizeNodeRec ), + ftc_size_node_compare, + ftc_size_node_init, + ftc_size_node_reset, + ftc_size_node_done + }; + + + /* helper function used by ftc_face_node_done */ + static FT_Bool + ftc_size_node_compare_faceid( FTC_MruNode ftcnode, + FT_Pointer ftcface_id ) + { + FTC_SizeNode node = (FTC_SizeNode)ftcnode; + FTC_FaceID face_id = (FTC_FaceID)ftcface_id; + + + return FT_BOOL( node->scaler.face_id == face_id ); + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_Manager_LookupSize( FTC_Manager manager, + FTC_Scaler scaler, + FT_Size *asize ) + { + FT_Error error; + FTC_MruNode mrunode; + + + if ( asize == NULL ) + return FTC_Err_Invalid_Argument; + + *asize = NULL; + + if ( !manager ) + return FTC_Err_Invalid_Cache_Handle; + +#ifdef FTC_INLINE + + FTC_MRULIST_LOOKUP_CMP( &manager->sizes, scaler, ftc_size_node_compare, + mrunode, error ); + +#else + error = FTC_MruList_Lookup( &manager->sizes, scaler, &mrunode ); +#endif + + if ( !error ) + *asize = FTC_SIZE_NODE( mrunode )->size; + + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FACE MRU IMPLEMENTATION *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct FTC_FaceNodeRec_ + { + FTC_MruNodeRec node; + FTC_FaceID face_id; + FT_Face face; + + } FTC_FaceNodeRec, *FTC_FaceNode; + +#define FTC_FACE_NODE( x ) ( ( FTC_FaceNode )( x ) ) + + + FT_CALLBACK_DEF( FT_Error ) + ftc_face_node_init( FTC_MruNode ftcnode, + FT_Pointer ftcface_id, + FT_Pointer ftcmanager ) + { + FTC_FaceNode node = (FTC_FaceNode)ftcnode; + FTC_FaceID face_id = (FTC_FaceID)ftcface_id; + FTC_Manager manager = (FTC_Manager)ftcmanager; + FT_Error error; + + + node->face_id = face_id; + + error = manager->request_face( face_id, + manager->library, + manager->request_data, + &node->face ); + if ( !error ) + { + /* destroy initial size object; it will be re-created later */ + if ( node->face->size ) + FT_Done_Size( node->face->size ); + } + + return error; + } + + + FT_CALLBACK_DEF( void ) + ftc_face_node_done( FTC_MruNode ftcnode, + FT_Pointer ftcmanager ) + { + FTC_FaceNode node = (FTC_FaceNode)ftcnode; + FTC_Manager manager = (FTC_Manager)ftcmanager; + + + /* we must begin by removing all scalers for the target face */ + /* from the manager's list */ + FTC_MruList_RemoveSelection( &manager->sizes, + ftc_size_node_compare_faceid, + node->face_id ); + + /* all right, we can discard the face now */ + FT_Done_Face( node->face ); + node->face = NULL; + node->face_id = NULL; + } + + + FT_CALLBACK_DEF( FT_Bool ) + ftc_face_node_compare( FTC_MruNode ftcnode, + FT_Pointer ftcface_id ) + { + FTC_FaceNode node = (FTC_FaceNode)ftcnode; + FTC_FaceID face_id = (FTC_FaceID)ftcface_id; + + + return FT_BOOL( node->face_id == face_id ); + } + + + FT_CALLBACK_TABLE_DEF + const FTC_MruListClassRec ftc_face_list_class = + { + sizeof ( FTC_FaceNodeRec), + + ftc_face_node_compare, + ftc_face_node_init, + 0, /* FTC_MruNode_ResetFunc */ + ftc_face_node_done + }; + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_Manager_LookupFace( FTC_Manager manager, + FTC_FaceID face_id, + FT_Face *aface ) + { + FT_Error error; + FTC_MruNode mrunode; + + + if ( aface == NULL ) + return FTC_Err_Invalid_Argument; + + *aface = NULL; + + if ( !manager ) + return FTC_Err_Invalid_Cache_Handle; + + /* we break encapsulation for the sake of speed */ +#ifdef FTC_INLINE + + FTC_MRULIST_LOOKUP_CMP( &manager->faces, face_id, ftc_face_node_compare, + mrunode, error ); + +#else + error = FTC_MruList_Lookup( &manager->faces, face_id, &mrunode ); +#endif + + if ( !error ) + *aface = FTC_FACE_NODE( mrunode )->face; + + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CACHE MANAGER ROUTINES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_Manager_New( FT_Library library, + FT_UInt max_faces, + FT_UInt max_sizes, + FT_ULong max_bytes, + FTC_Face_Requester requester, + FT_Pointer req_data, + FTC_Manager *amanager ) + { + FT_Error error; + FT_Memory memory; + FTC_Manager manager = 0; + + + if ( !library ) + return FTC_Err_Invalid_Library_Handle; + + memory = library->memory; + + if ( FT_NEW( manager ) ) + goto Exit; + + if ( max_faces == 0 ) + max_faces = FTC_MAX_FACES_DEFAULT; + + if ( max_sizes == 0 ) + max_sizes = FTC_MAX_SIZES_DEFAULT; + + if ( max_bytes == 0 ) + max_bytes = FTC_MAX_BYTES_DEFAULT; + + manager->library = library; + manager->memory = memory; + manager->max_weight = max_bytes; + + manager->request_face = requester; + manager->request_data = req_data; + + FTC_MruList_Init( &manager->faces, + &ftc_face_list_class, + max_faces, + manager, + memory ); + + FTC_MruList_Init( &manager->sizes, + &ftc_size_list_class, + max_sizes, + manager, + memory ); + + *amanager = manager; + + Exit: + return error; + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( void ) + FTC_Manager_Done( FTC_Manager manager ) + { + FT_Memory memory; + FT_UInt idx; + + + if ( !manager || !manager->library ) + return; + + memory = manager->memory; + + /* now discard all caches */ + for (idx = manager->num_caches; idx-- > 0; ) + { + FTC_Cache cache = manager->caches[idx]; + + + if ( cache ) + { + cache->clazz.cache_done( cache ); + FT_FREE( cache ); + manager->caches[idx] = NULL; + } + } + manager->num_caches = 0; + + /* discard faces and sizes */ + FTC_MruList_Done( &manager->sizes ); + FTC_MruList_Done( &manager->faces ); + + manager->library = NULL; + manager->memory = NULL; + + FT_FREE( manager ); + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( void ) + FTC_Manager_Reset( FTC_Manager manager ) + { + if ( manager ) + { + FTC_MruList_Reset( &manager->sizes ); + FTC_MruList_Reset( &manager->faces ); + } + /* XXX: FIXME: flush the caches? */ + } + + +#ifdef FT_DEBUG_ERROR + + static void + FTC_Manager_Check( FTC_Manager manager ) + { + FTC_Node node, first; + + + first = manager->nodes_list; + + /* check node weights */ + if ( first ) + { + FT_ULong weight = 0; + + + node = first; + + do + { + FTC_Cache cache = manager->caches[node->cache_index]; + + + if ( (FT_UInt)node->cache_index >= manager->num_caches ) + FT_TRACE0(( "FTC_Manager_Check: invalid node (cache index = %ld\n", + node->cache_index )); + else + weight += cache->clazz.node_weight( node, cache ); + + node = FTC_NODE__NEXT( node ); + + } while ( node != first ); + + if ( weight != manager->cur_weight ) + FT_TRACE0(( "FTC_Manager_Check: invalid weight %ld instead of %ld\n", + manager->cur_weight, weight )); + } + + /* check circular list */ + if ( first ) + { + FT_UFast count = 0; + + + node = first; + do + { + count++; + node = FTC_NODE__NEXT( node ); + + } while ( node != first ); + + if ( count != manager->num_nodes ) + FT_TRACE0(( "FTC_Manager_Check:" + " invalid cache node count %d instead of %d\n", + manager->num_nodes, count )); + } + } + +#endif /* FT_DEBUG_ERROR */ + + + /* `Compress' the manager's data, i.e., get rid of old cache nodes */ + /* that are not referenced anymore in order to limit the total */ + /* memory used by the cache. */ + + /* documentation is in ftcmanag.h */ + + FT_LOCAL_DEF( void ) + FTC_Manager_Compress( FTC_Manager manager ) + { + FTC_Node node, first; + + + if ( !manager ) + return; + + first = manager->nodes_list; + +#ifdef FT_DEBUG_ERROR + FTC_Manager_Check( manager ); + + FT_TRACE0(( "compressing, weight = %ld, max = %ld, nodes = %d\n", + manager->cur_weight, manager->max_weight, + manager->num_nodes )); +#endif + + if ( manager->cur_weight < manager->max_weight || first == NULL ) + return; + + /* go to last node -- it's a circular list */ + node = FTC_NODE__PREV( first ); + do + { + FTC_Node prev; + + + prev = ( node == first ) ? NULL : FTC_NODE__PREV( node ); + + if ( node->ref_count <= 0 ) + ftc_node_destroy( node, manager ); + + node = prev; + + } while ( node && manager->cur_weight > manager->max_weight ); + } + + + /* documentation is in ftcmanag.h */ + + FT_LOCAL_DEF( FT_Error ) + FTC_Manager_RegisterCache( FTC_Manager manager, + FTC_CacheClass clazz, + FTC_Cache *acache ) + { + FT_Error error = FTC_Err_Invalid_Argument; + FTC_Cache cache = NULL; + + + if ( manager && clazz && acache ) + { + FT_Memory memory = manager->memory; + + + if ( manager->num_caches >= FTC_MAX_CACHES ) + { + error = FTC_Err_Too_Many_Caches; + FT_ERROR(( "FTC_Manager_RegisterCache:" + " too many registered caches\n" )); + goto Exit; + } + + if ( !FT_ALLOC( cache, clazz->cache_size ) ) + { + cache->manager = manager; + cache->memory = memory; + cache->clazz = clazz[0]; + cache->org_class = clazz; + + /* THIS IS VERY IMPORTANT! IT WILL WRETCH THE MANAGER */ + /* IF IT IS NOT SET CORRECTLY */ + cache->index = manager->num_caches; + + error = clazz->cache_init( cache ); + if ( error ) + { + clazz->cache_done( cache ); + FT_FREE( cache ); + goto Exit; + } + + manager->caches[manager->num_caches++] = cache; + } + } + + Exit: + if ( acache ) + *acache = cache; + return error; + } + + + FT_LOCAL_DEF( FT_UInt ) + FTC_Manager_FlushN( FTC_Manager manager, + FT_UInt count ) + { + FTC_Node first = manager->nodes_list; + FTC_Node node; + FT_UInt result; + + + /* try to remove `count' nodes from the list */ + if ( first == NULL ) /* empty list! */ + return 0; + + /* go to last node - it's a circular list */ + node = FTC_NODE__PREV(first); + for ( result = 0; result < count; ) + { + FTC_Node prev = FTC_NODE__PREV( node ); + + + /* don't touch locked nodes */ + if ( node->ref_count <= 0 ) + { + ftc_node_destroy( node, manager ); + result++; + } + + if ( node == first ) + break; + + node = prev; + } + return result; + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( void ) + FTC_Manager_RemoveFaceID( FTC_Manager manager, + FTC_FaceID face_id ) + { + FT_UInt nn; + + /* this will remove all FTC_SizeNode that correspond to + * the face_id as well + */ + FTC_MruList_RemoveSelection( &manager->faces, + ftc_face_node_compare, + face_id ); + + for ( nn = 0; nn < manager->num_caches; nn++ ) + FTC_Cache_RemoveFaceID( manager->caches[nn], face_id ); + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( void ) + FTC_Node_Unref( FTC_Node node, + FTC_Manager manager ) + { + if ( node && (FT_UInt)node->cache_index < manager->num_caches ) + node->ref_count--; + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_EXPORT_DEF( FT_Error ) + FTC_Manager_Lookup_Face( FTC_Manager manager, + FTC_FaceID face_id, + FT_Face *aface ) + { + return FTC_Manager_LookupFace( manager, face_id, aface ); + } + + + FT_EXPORT( FT_Error ) + FTC_Manager_Lookup_Size( FTC_Manager manager, + FTC_Font font, + FT_Face *aface, + FT_Size *asize ) + { + FTC_ScalerRec scaler; + FT_Error error; + FT_Size size; + FT_Face face; + + + scaler.face_id = font->face_id; + scaler.width = font->pix_width; + scaler.height = font->pix_height; + scaler.pixel = TRUE; + scaler.x_res = 0; + scaler.y_res = 0; + + error = FTC_Manager_LookupSize( manager, &scaler, &size ); + if ( error ) + { + face = NULL; + size = NULL; + } + else + face = size->face; + + if ( aface ) + *aface = face; + + if ( asize ) + *asize = size; + + return error; + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + +/* END */ diff --git a/src/cache/ftcmanag.h b/src/cache/ftcmanag.h new file mode 100644 index 0000000..d6c8516 --- /dev/null +++ b/src/cache/ftcmanag.h @@ -0,0 +1,175 @@ +/***************************************************************************/ +/* */ +/* ftcmanag.h */ +/* */ +/* FreeType Cache Manager (specification). */ +/* */ +/* Copyright 2000-2001, 2003, 2004, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* A cache manager is in charge of the following: */ + /* */ + /* - Maintain a mapping between generic FTC_FaceIDs and live FT_Face */ + /* objects. The mapping itself is performed through a user-provided */ + /* callback. However, the manager maintains a small cache of FT_Face */ + /* and FT_Size objects in order to speed up things considerably. */ + /* */ + /* - Manage one or more cache objects. Each cache is in charge of */ + /* holding a varying number of `cache nodes'. Each cache node */ + /* represents a minimal amount of individually accessible cached */ + /* data. For example, a cache node can be an FT_Glyph image */ + /* containing a vector outline, or some glyph metrics, or anything */ + /* else. */ + /* */ + /* Each cache node has a certain size in bytes that is added to the */ + /* total amount of `cache memory' within the manager. */ + /* */ + /* All cache nodes are located in a global LRU list, where the oldest */ + /* node is at the tail of the list. */ + /* */ + /* Each node belongs to a single cache, and includes a reference */ + /* count to avoid destroying it (due to caching). */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********* *********/ + /********* WARNING, THIS IS BETA CODE. *********/ + /********* *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#ifndef __FTCMANAG_H__ +#define __FTCMANAG_H__ + + +#include <ft2build.h> +#include FT_CACHE_H +#include "ftcmru.h" +#include "ftccache.h" + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Section> */ + /* cache_subsystem */ + /* */ + /*************************************************************************/ + + +#define FTC_MAX_FACES_DEFAULT 2 +#define FTC_MAX_SIZES_DEFAULT 4 +#define FTC_MAX_BYTES_DEFAULT 200000L /* ~200kByte by default */ + + /* maximum number of caches registered in a single manager */ +#define FTC_MAX_CACHES 16 + + + typedef struct FTC_ManagerRec_ + { + FT_Library library; + FT_Memory memory; + + FTC_Node nodes_list; + FT_ULong max_weight; + FT_ULong cur_weight; + FT_UInt num_nodes; + + FTC_Cache caches[FTC_MAX_CACHES]; + FT_UInt num_caches; + + FTC_MruListRec faces; + FTC_MruListRec sizes; + + FT_Pointer request_data; + FTC_Face_Requester request_face; + + } FTC_ManagerRec; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FTC_Manager_Compress */ + /* */ + /* <Description> */ + /* This function is used to check the state of the cache manager if */ + /* its `num_bytes' field is greater than its `max_bytes' field. It */ + /* will flush as many old cache nodes as possible (ignoring cache */ + /* nodes with a non-zero reference count). */ + /* */ + /* <InOut> */ + /* manager :: A handle to the cache manager. */ + /* */ + /* <Note> */ + /* Client applications should not call this function directly. It is */ + /* normally invoked by specific cache implementations. */ + /* */ + /* The reason this function is exported is to allow client-specific */ + /* cache classes. */ + /* */ + FT_LOCAL( void ) + FTC_Manager_Compress( FTC_Manager manager ); + + + /* try to flush `count' old nodes from the cache; return the number + * of really flushed nodes + */ + FT_LOCAL( FT_UInt ) + FTC_Manager_FlushN( FTC_Manager manager, + FT_UInt count ); + + + /* this must be used internally for the moment */ + FT_LOCAL( FT_Error ) + FTC_Manager_RegisterCache( FTC_Manager manager, + FTC_CacheClass clazz, + FTC_Cache *acache ); + + /* */ + +#define FTC_SCALER_COMPARE( a, b ) \ + ( (a)->face_id == (b)->face_id && \ + (a)->width == (b)->width && \ + (a)->height == (b)->height && \ + ((a)->pixel != 0) == ((b)->pixel != 0) && \ + ( (a)->pixel || \ + ( (a)->x_res == (b)->x_res && \ + (a)->y_res == (b)->y_res ) ) ) + +#define FTC_SCALER_HASH( q ) \ + ( _FTC_FACE_ID_HASH( (q)->face_id ) + \ + (q)->width + (q)->height*7 + \ + ( (q)->pixel ? 0 : ( (q)->x_res*33 ^ (q)->y_res*61 ) ) ) + + /* */ + +FT_END_HEADER + +#endif /* __FTCMANAG_H__ */ + + +/* END */ diff --git a/src/cache/ftcmru.c b/src/cache/ftcmru.c new file mode 100644 index 0000000..dc8b4cc --- /dev/null +++ b/src/cache/ftcmru.c @@ -0,0 +1,357 @@ +/***************************************************************************/ +/* */ +/* ftcmru.c */ +/* */ +/* FreeType MRU support (body). */ +/* */ +/* Copyright 2003, 2004, 2006, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_CACHE_H +#include "ftcmru.h" +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H + +#include "ftcerror.h" + + + FT_LOCAL_DEF( void ) + FTC_MruNode_Prepend( FTC_MruNode *plist, + FTC_MruNode node ) + { + FTC_MruNode first = *plist; + + + if ( first ) + { + FTC_MruNode last = first->prev; + + +#ifdef FT_DEBUG_ERROR + { + FTC_MruNode cnode = first; + + + do + { + if ( cnode == node ) + { + fprintf( stderr, "FTC_MruNode_Prepend: invalid action\n" ); + exit( 2 ); + } + cnode = cnode->next; + + } while ( cnode != first ); + } +#endif + + first->prev = node; + last->next = node; + node->next = first; + node->prev = last; + } + else + { + node->next = node; + node->prev = node; + } + *plist = node; + } + + + FT_LOCAL_DEF( void ) + FTC_MruNode_Up( FTC_MruNode *plist, + FTC_MruNode node ) + { + FTC_MruNode first = *plist; + + + FT_ASSERT( first != NULL ); + + if ( first != node ) + { + FTC_MruNode prev, next, last; + + +#ifdef FT_DEBUG_ERROR + { + FTC_MruNode cnode = first; + do + { + if ( cnode == node ) + goto Ok; + cnode = cnode->next; + + } while ( cnode != first ); + + fprintf( stderr, "FTC_MruNode_Up: invalid action\n" ); + exit( 2 ); + Ok: + } +#endif + prev = node->prev; + next = node->next; + + prev->next = next; + next->prev = prev; + + last = first->prev; + + last->next = node; + first->prev = node; + + node->next = first; + node->prev = last; + + *plist = node; + } + } + + + FT_LOCAL_DEF( void ) + FTC_MruNode_Remove( FTC_MruNode *plist, + FTC_MruNode node ) + { + FTC_MruNode first = *plist; + FTC_MruNode prev, next; + + + FT_ASSERT( first != NULL ); + +#ifdef FT_DEBUG_ERROR + { + FTC_MruNode cnode = first; + + + do + { + if ( cnode == node ) + goto Ok; + cnode = cnode->next; + + } while ( cnode != first ); + + fprintf( stderr, "FTC_MruNode_Remove: invalid action\n" ); + exit( 2 ); + Ok: + } +#endif + + prev = node->prev; + next = node->next; + + prev->next = next; + next->prev = prev; + + if ( node == next ) + { + FT_ASSERT( first == node ); + FT_ASSERT( prev == node ); + + *plist = NULL; + } + else if ( node == first ) + *plist = next; + } + + + FT_LOCAL_DEF( void ) + FTC_MruList_Init( FTC_MruList list, + FTC_MruListClass clazz, + FT_UInt max_nodes, + FT_Pointer data, + FT_Memory memory ) + { + list->num_nodes = 0; + list->max_nodes = max_nodes; + list->nodes = NULL; + list->clazz = *clazz; + list->data = data; + list->memory = memory; + } + + + FT_LOCAL_DEF( void ) + FTC_MruList_Reset( FTC_MruList list ) + { + while ( list->nodes ) + FTC_MruList_Remove( list, list->nodes ); + + FT_ASSERT( list->num_nodes == 0 ); + } + + + FT_LOCAL_DEF( void ) + FTC_MruList_Done( FTC_MruList list ) + { + FTC_MruList_Reset( list ); + } + + +#ifndef FTC_INLINE + FT_LOCAL_DEF( FTC_MruNode ) + FTC_MruList_Find( FTC_MruList list, + FT_Pointer key ) + { + FTC_MruNode_CompareFunc compare = list->clazz.node_compare; + FTC_MruNode first, node; + + + first = list->nodes; + node = NULL; + + if ( first ) + { + node = first; + do + { + if ( compare( node, key ) ) + { + if ( node != first ) + FTC_MruNode_Up( &list->nodes, node ); + + return node; + } + + node = node->next; + + } while ( node != first); + } + + return NULL; + } +#endif + + FT_LOCAL_DEF( FT_Error ) + FTC_MruList_New( FTC_MruList list, + FT_Pointer key, + FTC_MruNode *anode ) + { + FT_Error error; + FTC_MruNode node = NULL; + FT_Memory memory = list->memory; + + + if ( list->num_nodes >= list->max_nodes && list->max_nodes > 0 ) + { + node = list->nodes->prev; + + FT_ASSERT( node ); + + if ( list->clazz.node_reset ) + { + FTC_MruNode_Up( &list->nodes, node ); + + error = list->clazz.node_reset( node, key, list->data ); + if ( !error ) + goto Exit; + } + + FTC_MruNode_Remove( &list->nodes, node ); + list->num_nodes--; + + if ( list->clazz.node_done ) + list->clazz.node_done( node, list->data ); + } + else if ( FT_ALLOC( node, list->clazz.node_size ) ) + goto Exit; + + error = list->clazz.node_init( node, key, list->data ); + if ( error ) + goto Fail; + + FTC_MruNode_Prepend( &list->nodes, node ); + list->num_nodes++; + + Exit: + *anode = node; + return error; + + Fail: + if ( list->clazz.node_done ) + list->clazz.node_done( node, list->data ); + + FT_FREE( node ); + goto Exit; + } + + +#ifndef FTC_INLINE + FT_LOCAL_DEF( FT_Error ) + FTC_MruList_Lookup( FTC_MruList list, + FT_Pointer key, + FTC_MruNode *anode ) + { + FTC_MruNode node; + + + node = FTC_MruList_Find( list, key ); + if ( node == NULL ) + return FTC_MruList_New( list, key, anode ); + + *anode = node; + return 0; + } +#endif /* FTC_INLINE */ + + FT_LOCAL_DEF( void ) + FTC_MruList_Remove( FTC_MruList list, + FTC_MruNode node ) + { + FTC_MruNode_Remove( &list->nodes, node ); + list->num_nodes--; + + { + FT_Memory memory = list->memory; + + + if ( list->clazz.node_done ) + list->clazz.node_done( node, list->data ); + + FT_FREE( node ); + } + } + + + FT_LOCAL_DEF( void ) + FTC_MruList_RemoveSelection( FTC_MruList list, + FTC_MruNode_CompareFunc selection, + FT_Pointer key ) + { + FTC_MruNode first, node, next; + + + first = list->nodes; + while ( first && ( selection == NULL || selection( first, key ) ) ) + { + FTC_MruList_Remove( list, first ); + first = list->nodes; + } + + if ( first ) + { + node = first->next; + while ( node != first ) + { + next = node->next; + + if ( selection( node, key ) ) + FTC_MruList_Remove( list, node ); + + node = next; + } + } + } + + +/* END */ diff --git a/src/cache/ftcmru.h b/src/cache/ftcmru.h new file mode 100644 index 0000000..8c3797f --- /dev/null +++ b/src/cache/ftcmru.h @@ -0,0 +1,246 @@ +/***************************************************************************/ +/* */ +/* ftcmru.h */ +/* */ +/* Simple MRU list-cache (specification). */ +/* */ +/* Copyright 2000-2001, 2003, 2004, 2005, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* An MRU is a list that cannot hold more than a certain number of */ + /* elements (`max_elements'). All elements in the list are sorted in */ + /* least-recently-used order, i.e., the `oldest' element is at the tail */ + /* of the list. */ + /* */ + /* When doing a lookup (either through `Lookup()' or `Lookup_Node()'), */ + /* the list is searched for an element with the corresponding key. If */ + /* it is found, the element is moved to the head of the list and is */ + /* returned. */ + /* */ + /* If no corresponding element is found, the lookup routine will try to */ + /* obtain a new element with the relevant key. If the list is already */ + /* full, the oldest element from the list is discarded and replaced by a */ + /* new one; a new element is added to the list otherwise. */ + /* */ + /* Note that it is possible to pre-allocate the element list nodes. */ + /* This is handy if `max_elements' is sufficiently small, as it saves */ + /* allocations/releases during the lookup process. */ + /* */ + /*************************************************************************/ + + +#ifndef __FTCMRU_H__ +#define __FTCMRU_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#ifdef FREETYPE_H +#error "freetype.h of FreeType 1 has been loaded!" +#error "Please fix the directory search order for header files" +#error "so that freetype.h of FreeType 2 is found first." +#endif + +#define xxFT_DEBUG_ERROR +#define FTC_INLINE + +FT_BEGIN_HEADER + + typedef struct FTC_MruNodeRec_* FTC_MruNode; + + typedef struct FTC_MruNodeRec_ + { + FTC_MruNode next; + FTC_MruNode prev; + + } FTC_MruNodeRec; + + + FT_LOCAL( void ) + FTC_MruNode_Prepend( FTC_MruNode *plist, + FTC_MruNode node ); + + FT_LOCAL( void ) + FTC_MruNode_Up( FTC_MruNode *plist, + FTC_MruNode node ); + + FT_LOCAL( void ) + FTC_MruNode_Remove( FTC_MruNode *plist, + FTC_MruNode node ); + + + typedef struct FTC_MruListRec_* FTC_MruList; + + typedef struct FTC_MruListClassRec_ const * FTC_MruListClass; + + + typedef FT_Bool + (*FTC_MruNode_CompareFunc)( FTC_MruNode node, + FT_Pointer key ); + + typedef FT_Error + (*FTC_MruNode_InitFunc)( FTC_MruNode node, + FT_Pointer key, + FT_Pointer data ); + + typedef FT_Error + (*FTC_MruNode_ResetFunc)( FTC_MruNode node, + FT_Pointer key, + FT_Pointer data ); + + typedef void + (*FTC_MruNode_DoneFunc)( FTC_MruNode node, + FT_Pointer data ); + + + typedef struct FTC_MruListClassRec_ + { + FT_Offset node_size; + FTC_MruNode_CompareFunc node_compare; + FTC_MruNode_InitFunc node_init; + FTC_MruNode_ResetFunc node_reset; + FTC_MruNode_DoneFunc node_done; + + } FTC_MruListClassRec; + + typedef struct FTC_MruListRec_ + { + FT_UInt num_nodes; + FT_UInt max_nodes; + FTC_MruNode nodes; + FT_Pointer data; + FTC_MruListClassRec clazz; + FT_Memory memory; + + } FTC_MruListRec; + + + FT_LOCAL( void ) + FTC_MruList_Init( FTC_MruList list, + FTC_MruListClass clazz, + FT_UInt max_nodes, + FT_Pointer data, + FT_Memory memory ); + + FT_LOCAL( void ) + FTC_MruList_Reset( FTC_MruList list ); + + + FT_LOCAL( void ) + FTC_MruList_Done( FTC_MruList list ); + + + FT_LOCAL( FT_Error ) + FTC_MruList_New( FTC_MruList list, + FT_Pointer key, + FTC_MruNode *anode ); + + FT_LOCAL( void ) + FTC_MruList_Remove( FTC_MruList list, + FTC_MruNode node ); + + FT_LOCAL( void ) + FTC_MruList_RemoveSelection( FTC_MruList list, + FTC_MruNode_CompareFunc selection, + FT_Pointer key ); + + +#ifdef FTC_INLINE + +#define FTC_MRULIST_LOOKUP_CMP( list, key, compare, node, error ) \ + FT_BEGIN_STMNT \ + FTC_MruNode* _pfirst = &(list)->nodes; \ + FTC_MruNode_CompareFunc _compare = (FTC_MruNode_CompareFunc)(compare); \ + FTC_MruNode _first, _node; \ + \ + \ + error = FTC_Err_Ok; \ + _first = *(_pfirst); \ + _node = NULL; \ + \ + if ( _first ) \ + { \ + _node = _first; \ + do \ + { \ + if ( _compare( _node, (key) ) ) \ + { \ + if ( _node != _first ) \ + FTC_MruNode_Up( _pfirst, _node ); \ + \ + node = _node; \ + goto _MruOk; \ + } \ + _node = _node->next; \ + \ + } while ( _node != _first) ; \ + } \ + \ + error = FTC_MruList_New( (list), (key), (FTC_MruNode*)(void*)&(node) ); \ + _MruOk: \ + ; \ + FT_END_STMNT + +#define FTC_MRULIST_LOOKUP( list, key, node, error ) \ + FTC_MRULIST_LOOKUP_CMP( list, key, (list)->clazz.node_compare, node, error ) + +#else /* !FTC_INLINE */ + + FT_LOCAL( FTC_MruNode ) + FTC_MruList_Find( FTC_MruList list, + FT_Pointer key ); + + FT_LOCAL( FT_Error ) + FTC_MruList_Lookup( FTC_MruList list, + FT_Pointer key, + FTC_MruNode *pnode ); + +#define FTC_MRULIST_LOOKUP( list, key, node, error ) \ + error = FTC_MruList_Lookup( (list), (key), (FTC_MruNode*)&(node) ) + +#endif /* !FTC_INLINE */ + + +#define FTC_MRULIST_LOOP( list, node ) \ + FT_BEGIN_STMNT \ + FTC_MruNode _first = (list)->nodes; \ + \ + \ + if ( _first ) \ + { \ + FTC_MruNode _node = _first; \ + \ + \ + do \ + { \ + *(FTC_MruNode*)&(node) = _node; + + +#define FTC_MRULIST_LOOP_END() \ + _node = _node->next; \ + \ + } while ( _node != _first ); \ + } \ + FT_END_STMNT + + /* */ + +FT_END_HEADER + + +#endif /* __FTCMRU_H__ */ + + +/* END */ diff --git a/src/cache/ftcsbits.c b/src/cache/ftcsbits.c new file mode 100644 index 0000000..8bf8d60 --- /dev/null +++ b/src/cache/ftcsbits.c @@ -0,0 +1,421 @@ +/***************************************************************************/ +/* */ +/* ftcsbits.c */ +/* */ +/* FreeType sbits manager (body). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2009, 2010, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_CACHE_H +#include "ftcsbits.h" +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_ERRORS_H + +#include "ftccback.h" +#include "ftcerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_cache + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SBIT CACHE NODES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + static FT_Error + ftc_sbit_copy_bitmap( FTC_SBit sbit, + FT_Bitmap* bitmap, + FT_Memory memory ) + { + FT_Error error; + FT_Int pitch = bitmap->pitch; + FT_ULong size; + + + if ( pitch < 0 ) + pitch = -pitch; + + size = (FT_ULong)( pitch * bitmap->rows ); + + if ( !FT_ALLOC( sbit->buffer, size ) ) + FT_MEM_COPY( sbit->buffer, bitmap->buffer, size ); + + return error; + } + + + FT_LOCAL_DEF( void ) + ftc_snode_free( FTC_Node ftcsnode, + FTC_Cache cache ) + { + FTC_SNode snode = (FTC_SNode)ftcsnode; + FTC_SBit sbit = snode->sbits; + FT_UInt count = snode->count; + FT_Memory memory = cache->memory; + + + for ( ; count > 0; sbit++, count-- ) + FT_FREE( sbit->buffer ); + + FTC_GNode_Done( FTC_GNODE( snode ), cache ); + + FT_FREE( snode ); + } + + + FT_LOCAL_DEF( void ) + FTC_SNode_Free( FTC_SNode snode, + FTC_Cache cache ) + { + ftc_snode_free( FTC_NODE( snode ), cache ); + } + + + /* + * This function tries to load a small bitmap within a given FTC_SNode. + * Note that it returns a non-zero error code _only_ in the case of + * out-of-memory condition. For all other errors (e.g., corresponding + * to a bad font file), this function will mark the sbit as `unavailable' + * and return a value of 0. + * + * You should also read the comment within the @ftc_snode_compare + * function below to see how out-of-memory is handled during a lookup. + */ + static FT_Error + ftc_snode_load( FTC_SNode snode, + FTC_Manager manager, + FT_UInt gindex, + FT_ULong *asize ) + { + FT_Error error; + FTC_GNode gnode = FTC_GNODE( snode ); + FTC_Family family = gnode->family; + FT_Memory memory = manager->memory; + FT_Face face; + FTC_SBit sbit; + FTC_SFamilyClass clazz; + + + if ( (FT_UInt)(gindex - gnode->gindex) >= snode->count ) + { + FT_ERROR(( "ftc_snode_load: invalid glyph index" )); + return FTC_Err_Invalid_Argument; + } + + sbit = snode->sbits + ( gindex - gnode->gindex ); + clazz = (FTC_SFamilyClass)family->clazz; + + sbit->buffer = 0; + + error = clazz->family_load_glyph( family, gindex, manager, &face ); + if ( error ) + goto BadGlyph; + + { + FT_Int temp; + FT_GlyphSlot slot = face->glyph; + FT_Bitmap* bitmap = &slot->bitmap; + FT_Pos xadvance, yadvance; /* FT_GlyphSlot->advance.{x|y} */ + + + if ( slot->format != FT_GLYPH_FORMAT_BITMAP ) + { + FT_TRACE0(( "ftc_snode_load:" + " glyph loaded didn't return a bitmap\n" )); + goto BadGlyph; + } + + /* Check that our values fit into 8-bit containers! */ + /* If this is not the case, our bitmap is too large */ + /* and we will leave it as `missing' with sbit.buffer = 0 */ + +#define CHECK_CHAR( d ) ( temp = (FT_Char)d, temp == d ) +#define CHECK_BYTE( d ) ( temp = (FT_Byte)d, temp == d ) + + /* horizontal advance in pixels */ + xadvance = ( slot->advance.x + 32 ) >> 6; + yadvance = ( slot->advance.y + 32 ) >> 6; + + if ( !CHECK_BYTE( bitmap->rows ) || + !CHECK_BYTE( bitmap->width ) || + !CHECK_CHAR( bitmap->pitch ) || + !CHECK_CHAR( slot->bitmap_left ) || + !CHECK_CHAR( slot->bitmap_top ) || + !CHECK_CHAR( xadvance ) || + !CHECK_CHAR( yadvance ) ) + { + FT_TRACE2(( "ftc_snode_load:" + " glyph too large for small bitmap cache\n")); + goto BadGlyph; + } + + sbit->width = (FT_Byte)bitmap->width; + sbit->height = (FT_Byte)bitmap->rows; + sbit->pitch = (FT_Char)bitmap->pitch; + sbit->left = (FT_Char)slot->bitmap_left; + sbit->top = (FT_Char)slot->bitmap_top; + sbit->xadvance = (FT_Char)xadvance; + sbit->yadvance = (FT_Char)yadvance; + sbit->format = (FT_Byte)bitmap->pixel_mode; + sbit->max_grays = (FT_Byte)(bitmap->num_grays - 1); + + /* copy the bitmap into a new buffer -- ignore error */ + error = ftc_sbit_copy_bitmap( sbit, bitmap, memory ); + + /* now, compute size */ + if ( asize ) + *asize = FT_ABS( sbit->pitch ) * sbit->height; + + } /* glyph loading successful */ + + /* ignore the errors that might have occurred -- */ + /* we mark unloaded glyphs with `sbit.buffer == 0' */ + /* and `width == 255', `height == 0' */ + /* */ + if ( error && error != FTC_Err_Out_Of_Memory ) + { + BadGlyph: + sbit->width = 255; + sbit->height = 0; + sbit->buffer = NULL; + error = FTC_Err_Ok; + if ( asize ) + *asize = 0; + } + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + FTC_SNode_New( FTC_SNode *psnode, + FTC_GQuery gquery, + FTC_Cache cache ) + { + FT_Memory memory = cache->memory; + FT_Error error; + FTC_SNode snode = NULL; + FT_UInt gindex = gquery->gindex; + FTC_Family family = gquery->family; + + FTC_SFamilyClass clazz = FTC_CACHE__SFAMILY_CLASS( cache ); + FT_UInt total; + FT_UInt node_count; + + + total = clazz->family_get_count( family, cache->manager ); + if ( total == 0 || gindex >= total ) + { + error = FTC_Err_Invalid_Argument; + goto Exit; + } + + if ( !FT_NEW( snode ) ) + { + FT_UInt count, start; + + + start = gindex - ( gindex % FTC_SBIT_ITEMS_PER_NODE ); + count = total - start; + if ( count > FTC_SBIT_ITEMS_PER_NODE ) + count = FTC_SBIT_ITEMS_PER_NODE; + + FTC_GNode_Init( FTC_GNODE( snode ), start, family ); + + snode->count = count; + for ( node_count = 0; node_count < count; node_count++ ) + { + snode->sbits[node_count].width = 255; + } + + error = ftc_snode_load( snode, + cache->manager, + gindex, + NULL ); + if ( error ) + { + FTC_SNode_Free( snode, cache ); + snode = NULL; + } + } + + Exit: + *psnode = snode; + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + ftc_snode_new( FTC_Node *ftcpsnode, + FT_Pointer ftcgquery, + FTC_Cache cache ) + { + FTC_SNode *psnode = (FTC_SNode*)ftcpsnode; + FTC_GQuery gquery = (FTC_GQuery)ftcgquery; + + + return FTC_SNode_New( psnode, gquery, cache ); + } + + + FT_LOCAL_DEF( FT_Offset ) + ftc_snode_weight( FTC_Node ftcsnode, + FTC_Cache cache ) + { + FTC_SNode snode = (FTC_SNode)ftcsnode; + FT_UInt count = snode->count; + FTC_SBit sbit = snode->sbits; + FT_Int pitch; + FT_Offset size; + + FT_UNUSED( cache ); + + + FT_ASSERT( snode->count <= FTC_SBIT_ITEMS_PER_NODE ); + + /* the node itself */ + size = sizeof ( *snode ); + + for ( ; count > 0; count--, sbit++ ) + { + if ( sbit->buffer ) + { + pitch = sbit->pitch; + if ( pitch < 0 ) + pitch = -pitch; + + /* add the size of a given glyph image */ + size += pitch * sbit->height; + } + } + + return size; + } + + +#if 0 + + FT_LOCAL_DEF( FT_Offset ) + FTC_SNode_Weight( FTC_SNode snode ) + { + return ftc_snode_weight( FTC_NODE( snode ), NULL ); + } + +#endif /* 0 */ + + + FT_LOCAL_DEF( FT_Bool ) + ftc_snode_compare( FTC_Node ftcsnode, + FT_Pointer ftcgquery, + FTC_Cache cache, + FT_Bool* list_changed ) + { + FTC_SNode snode = (FTC_SNode)ftcsnode; + FTC_GQuery gquery = (FTC_GQuery)ftcgquery; + FTC_GNode gnode = FTC_GNODE( snode ); + FT_UInt gindex = gquery->gindex; + FT_Bool result; + + + if (list_changed) + *list_changed = FALSE; + result = FT_BOOL( gnode->family == gquery->family && + (FT_UInt)( gindex - gnode->gindex ) < snode->count ); + if ( result ) + { + /* check if we need to load the glyph bitmap now */ + FTC_SBit sbit = snode->sbits + ( gindex - gnode->gindex ); + + + /* + * The following code illustrates what to do when you want to + * perform operations that may fail within a lookup function. + * + * Here, we want to load a small bitmap on-demand; we thus + * need to call the `ftc_snode_load' function which may return + * a non-zero error code only when we are out of memory (OOM). + * + * The correct thing to do is to use @FTC_CACHE_TRYLOOP and + * @FTC_CACHE_TRYLOOP_END in order to implement a retry loop + * that is capable of flushing the cache incrementally when + * an OOM errors occur. + * + * However, we need to `lock' the node before this operation to + * prevent it from being flushed within the loop. + * + * When we exit the loop, we unlock the node, then check the `error' + * variable. If it is non-zero, this means that the cache was + * completely flushed and that no usable memory was found to load + * the bitmap. + * + * We then prefer to return a value of 0 (i.e., NO MATCH). This + * ensures that the caller will try to allocate a new node. + * This operation consequently _fail_ and the lookup function + * returns the appropriate OOM error code. + * + * Note that `buffer == NULL && width == 255' is a hack used to + * tag `unavailable' bitmaps in the array. We should never try + * to load these. + * + */ + + if ( sbit->buffer == NULL && sbit->width == 255 ) + { + FT_ULong size; + FT_Error error; + + + ftcsnode->ref_count++; /* lock node to prevent flushing */ + /* in retry loop */ + + FTC_CACHE_TRYLOOP( cache ) + { + error = ftc_snode_load( snode, cache->manager, gindex, &size ); + } + FTC_CACHE_TRYLOOP_END( list_changed ); + + ftcsnode->ref_count--; /* unlock the node */ + + if ( error ) + result = 0; + else + cache->manager->cur_weight += size; + } + } + + return result; + } + + +#ifdef FTC_INLINE + + FT_LOCAL_DEF( FT_Bool ) + FTC_SNode_Compare( FTC_SNode snode, + FTC_GQuery gquery, + FTC_Cache cache, + FT_Bool* list_changed ) + { + return ftc_snode_compare( FTC_NODE( snode ), gquery, + cache, list_changed ); + } + +#endif + +/* END */ diff --git a/src/cache/ftcsbits.h b/src/cache/ftcsbits.h new file mode 100644 index 0000000..df55dca --- /dev/null +++ b/src/cache/ftcsbits.h @@ -0,0 +1,103 @@ +/***************************************************************************/ +/* */ +/* ftcsbits.h */ +/* */ +/* A small-bitmap cache (specification). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2006, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTCSBITS_H__ +#define __FTCSBITS_H__ + + +#include <ft2build.h> +#include FT_CACHE_H +#include "ftcglyph.h" + + +FT_BEGIN_HEADER + +#define FTC_SBIT_ITEMS_PER_NODE 16 + + typedef struct FTC_SNodeRec_ + { + FTC_GNodeRec gnode; + FT_UInt count; + FTC_SBitRec sbits[FTC_SBIT_ITEMS_PER_NODE]; + + } FTC_SNodeRec, *FTC_SNode; + + +#define FTC_SNODE( x ) ( (FTC_SNode)( x ) ) +#define FTC_SNODE_GINDEX( x ) FTC_GNODE( x )->gindex +#define FTC_SNODE_FAMILY( x ) FTC_GNODE( x )->family + + typedef FT_UInt + (*FTC_SFamily_GetCountFunc)( FTC_Family family, + FTC_Manager manager ); + + typedef FT_Error + (*FTC_SFamily_LoadGlyphFunc)( FTC_Family family, + FT_UInt gindex, + FTC_Manager manager, + FT_Face *aface ); + + typedef struct FTC_SFamilyClassRec_ + { + FTC_MruListClassRec clazz; + FTC_SFamily_GetCountFunc family_get_count; + FTC_SFamily_LoadGlyphFunc family_load_glyph; + + } FTC_SFamilyClassRec; + + typedef const FTC_SFamilyClassRec* FTC_SFamilyClass; + +#define FTC_SFAMILY_CLASS( x ) ((FTC_SFamilyClass)(x)) + +#define FTC_CACHE__SFAMILY_CLASS( x ) \ + FTC_SFAMILY_CLASS( FTC_CACHE__GCACHE_CLASS( x )->family_class ) + + + FT_LOCAL( void ) + FTC_SNode_Free( FTC_SNode snode, + FTC_Cache cache ); + + FT_LOCAL( FT_Error ) + FTC_SNode_New( FTC_SNode *psnode, + FTC_GQuery gquery, + FTC_Cache cache ); + +#if 0 + FT_LOCAL( FT_ULong ) + FTC_SNode_Weight( FTC_SNode inode ); +#endif + + +#ifdef FTC_INLINE + + FT_LOCAL( FT_Bool ) + FTC_SNode_Compare( FTC_SNode snode, + FTC_GQuery gquery, + FTC_Cache cache, + FT_Bool* list_changed); + +#endif + + /* */ + +FT_END_HEADER + +#endif /* __FTCSBITS_H__ */ + + +/* END */ diff --git a/src/cache/rules.mk b/src/cache/rules.mk new file mode 100644 index 0000000..ed75a6a --- /dev/null +++ b/src/cache/rules.mk @@ -0,0 +1,80 @@ +# +# FreeType 2 Cache configuration rules +# + + +# Copyright 2000, 2001, 2003, 2004, 2006, 2008 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Cache driver directory +# +CACHE_DIR := $(SRC_DIR)/cache + +# compilation flags for the driver +# +CACHE_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(CACHE_DIR)) + + +# Cache driver sources (i.e., C files) +# +CACHE_DRV_SRC := $(CACHE_DIR)/ftcbasic.c \ + $(CACHE_DIR)/ftccache.c \ + $(CACHE_DIR)/ftccmap.c \ + $(CACHE_DIR)/ftcglyph.c \ + $(CACHE_DIR)/ftcimage.c \ + $(CACHE_DIR)/ftcmanag.c \ + $(CACHE_DIR)/ftcmru.c \ + $(CACHE_DIR)/ftcsbits.c + +# Cache driver headers +# +CACHE_DRV_H := $(CACHE_DIR)/ftccache.h \ + $(CACHE_DIR)/ftccback.h \ + $(CACHE_DIR)/ftcerror.h \ + $(CACHE_DIR)/ftcglyph.h \ + $(CACHE_DIR)/ftcimage.h \ + $(CACHE_DIR)/ftcmanag.h \ + $(CACHE_DIR)/ftcmru.h \ + $(CACHE_DIR)/ftcsbits.h + + +# Cache driver object(s) +# +# CACHE_DRV_OBJ_M is used during `multi' builds. +# CACHE_DRV_OBJ_S is used during `single' builds. +# +CACHE_DRV_OBJ_M := $(CACHE_DRV_SRC:$(CACHE_DIR)/%.c=$(OBJ_DIR)/%.$O) +CACHE_DRV_OBJ_S := $(OBJ_DIR)/ftcache.$O + +# Cache driver source file for single build +# +CACHE_DRV_SRC_S := $(CACHE_DIR)/ftcache.c + + +# Cache driver - single object +# +$(CACHE_DRV_OBJ_S): $(CACHE_DRV_SRC_S) $(CACHE_DRV_SRC) \ + $(FREETYPE_H) $(CACHE_DRV_H) + $(CACHE_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(CACHE_DRV_SRC_S)) + + +# Cache driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(CACHE_DIR)/%.c $(FREETYPE_H) $(CACHE_DRV_H) + $(CACHE_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(CACHE_DRV_OBJ_S) +DRV_OBJS_M += $(CACHE_DRV_OBJ_M) + + +# EOF diff --git a/src/cff/Jamfile b/src/cff/Jamfile new file mode 100644 index 0000000..6705d3c --- /dev/null +++ b/src/cff/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/cff Jamfile +# +# Copyright 2001, 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) cff ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = cffdrivr cffgload cffload cffobjs cffparse cffcmap cffpic ; + } + else + { + _sources = cff ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/cff Jamfile diff --git a/src/cff/cff.c b/src/cff/cff.c new file mode 100644 index 0000000..fccfd44 --- /dev/null +++ b/src/cff/cff.c @@ -0,0 +1,30 @@ +/***************************************************************************/ +/* */ +/* cff.c */ +/* */ +/* FreeType OpenType driver component (body only). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> +#include "cffpic.c" +#include "cffdrivr.c" +#include "cffparse.c" +#include "cffload.c" +#include "cffobjs.c" +#include "cffgload.c" +#include "cffcmap.c" + +/* END */ diff --git a/src/cff/cffcmap.c b/src/cff/cffcmap.c new file mode 100644 index 0000000..1298371 --- /dev/null +++ b/src/cff/cffcmap.c @@ -0,0 +1,208 @@ +/***************************************************************************/ +/* */ +/* cffcmap.c */ +/* */ +/* CFF character mapping table (cmap) support (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "cffcmap.h" +#include "cffload.h" + +#include "cfferrs.h" + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CFF STANDARD (AND EXPERT) ENCODING CMAPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_CALLBACK_DEF( FT_Error ) + cff_cmap_encoding_init( CFF_CMapStd cmap ) + { + TT_Face face = (TT_Face)FT_CMAP_FACE( cmap ); + CFF_Font cff = (CFF_Font)face->extra.data; + CFF_Encoding encoding = &cff->encoding; + + + cmap->gids = encoding->codes; + + return 0; + } + + + FT_CALLBACK_DEF( void ) + cff_cmap_encoding_done( CFF_CMapStd cmap ) + { + cmap->gids = NULL; + } + + + FT_CALLBACK_DEF( FT_UInt ) + cff_cmap_encoding_char_index( CFF_CMapStd cmap, + FT_UInt32 char_code ) + { + FT_UInt result = 0; + + + if ( char_code < 256 ) + result = cmap->gids[char_code]; + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + cff_cmap_encoding_char_next( CFF_CMapStd cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt result = 0; + FT_UInt32 char_code = *pchar_code; + + + *pchar_code = 0; + + if ( char_code < 255 ) + { + FT_UInt code = (FT_UInt)(char_code + 1); + + + for (;;) + { + if ( code >= 256 ) + break; + + result = cmap->gids[code]; + if ( result != 0 ) + { + *pchar_code = code; + break; + } + + code++; + } + } + return result; + } + + + FT_DEFINE_CMAP_CLASS(cff_cmap_encoding_class_rec, + sizeof ( CFF_CMapStdRec ), + + (FT_CMap_InitFunc) cff_cmap_encoding_init, + (FT_CMap_DoneFunc) cff_cmap_encoding_done, + (FT_CMap_CharIndexFunc)cff_cmap_encoding_char_index, + (FT_CMap_CharNextFunc) cff_cmap_encoding_char_next, + + NULL, NULL, NULL, NULL, NULL + ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CFF SYNTHETIC UNICODE ENCODING CMAP *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_CALLBACK_DEF( const char* ) + cff_sid_to_glyph_name( TT_Face face, + FT_UInt idx ) + { + CFF_Font cff = (CFF_Font)face->extra.data; + CFF_Charset charset = &cff->charset; + FT_UInt sid = charset->sids[idx]; + + + return cff_index_get_sid_string( cff, sid ); + } + + + FT_CALLBACK_DEF( FT_Error ) + cff_cmap_unicode_init( PS_Unicodes unicodes ) + { + TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes ); + FT_Memory memory = FT_FACE_MEMORY( face ); + CFF_Font cff = (CFF_Font)face->extra.data; + CFF_Charset charset = &cff->charset; + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames; + + + /* can't build Unicode map for CID-keyed font */ + /* because we don't know glyph names. */ + if ( !charset->sids ) + return CFF_Err_No_Unicode_Glyph_Name; + + return psnames->unicodes_init( memory, + unicodes, + cff->num_glyphs, + (PS_GetGlyphNameFunc)&cff_sid_to_glyph_name, + (PS_FreeGlyphNameFunc)NULL, + (FT_Pointer)face ); + } + + + FT_CALLBACK_DEF( void ) + cff_cmap_unicode_done( PS_Unicodes unicodes ) + { + FT_Face face = FT_CMAP_FACE( unicodes ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + FT_FREE( unicodes->maps ); + unicodes->num_maps = 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + cff_cmap_unicode_char_index( PS_Unicodes unicodes, + FT_UInt32 char_code ) + { + TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes ); + CFF_Font cff = (CFF_Font)face->extra.data; + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames; + + + return psnames->unicodes_char_index( unicodes, char_code ); + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + cff_cmap_unicode_char_next( PS_Unicodes unicodes, + FT_UInt32 *pchar_code ) + { + TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes ); + CFF_Font cff = (CFF_Font)face->extra.data; + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames; + + + return psnames->unicodes_char_next( unicodes, pchar_code ); + } + + + FT_DEFINE_CMAP_CLASS(cff_cmap_unicode_class_rec, + sizeof ( PS_UnicodesRec ), + + (FT_CMap_InitFunc) cff_cmap_unicode_init, + (FT_CMap_DoneFunc) cff_cmap_unicode_done, + (FT_CMap_CharIndexFunc)cff_cmap_unicode_char_index, + (FT_CMap_CharNextFunc) cff_cmap_unicode_char_next, + + NULL, NULL, NULL, NULL, NULL + ) + +/* END */ diff --git a/src/cff/cffcmap.h b/src/cff/cffcmap.h new file mode 100644 index 0000000..3f7f67b --- /dev/null +++ b/src/cff/cffcmap.h @@ -0,0 +1,67 @@ +/***************************************************************************/ +/* */ +/* cffcmap.h */ +/* */ +/* CFF character mapping table (cmap) support (specification). */ +/* */ +/* Copyright 2002, 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFCMAP_H__ +#define __CFFCMAP_H__ + +#include "cffobjs.h" + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 STANDARD (AND EXPERT) ENCODING CMAPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* standard (and expert) encoding cmaps */ + typedef struct CFF_CMapStdRec_* CFF_CMapStd; + + typedef struct CFF_CMapStdRec_ + { + FT_CMapRec cmap; + FT_UShort* gids; /* up to 256 elements */ + + } CFF_CMapStdRec; + + + FT_DECLARE_CMAP_CLASS(cff_cmap_encoding_class_rec) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CFF SYNTHETIC UNICODE ENCODING CMAP *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* unicode (synthetic) cmaps */ + + FT_DECLARE_CMAP_CLASS(cff_cmap_unicode_class_rec) + + +FT_END_HEADER + +#endif /* __CFFCMAP_H__ */ + + +/* END */ diff --git a/src/cff/cffdrivr.c b/src/cff/cffdrivr.c new file mode 100644 index 0000000..eb4c14e --- /dev/null +++ b/src/cff/cffdrivr.c @@ -0,0 +1,688 @@ +/***************************************************************************/ +/* */ +/* cffdrivr.c */ +/* */ +/* OpenType font driver implementation (body). */ +/* */ +/* Copyright 1996-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include FT_SERVICE_CID_H +#include FT_SERVICE_POSTSCRIPT_INFO_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_TT_CMAP_H + +#include "cffdrivr.h" +#include "cffgload.h" +#include "cffload.h" +#include "cffcmap.h" +#include "cffparse.h" + +#include "cfferrs.h" +#include "cffpic.h" + +#include FT_SERVICE_XFREE86_NAME_H +#include FT_SERVICE_GLYPH_DICT_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cffdriver + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** F A C E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#undef PAIR_TAG +#define PAIR_TAG( left, right ) ( ( (FT_ULong)left << 16 ) | \ + (FT_ULong)right ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_get_kerning */ + /* */ + /* <Description> */ + /* A driver method used to return the kerning vector between two */ + /* glyphs of the same face. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* left_glyph :: The index of the left glyph in the kern pair. */ + /* */ + /* right_glyph :: The index of the right glyph in the kern pair. */ + /* */ + /* <Output> */ + /* kerning :: The kerning vector. This is in font units for */ + /* scalable formats, and in pixels for fixed-sizes */ + /* formats. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* Only horizontal layouts (left-to-right & right-to-left) are */ + /* supported by this function. Other layouts, or more sophisticated */ + /* kernings, are out of scope of this method (the basic driver */ + /* interface is meant to be simple). */ + /* */ + /* They can be implemented by format-specific interfaces. */ + /* */ + FT_CALLBACK_DEF( FT_Error ) + cff_get_kerning( FT_Face ttface, /* TT_Face */ + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_Vector* kerning ) + { + TT_Face face = (TT_Face)ttface; + SFNT_Service sfnt = (SFNT_Service)face->sfnt; + + + kerning->x = 0; + kerning->y = 0; + + if ( sfnt ) + kerning->x = sfnt->get_kerning( face, left_glyph, right_glyph ); + + return CFF_Err_Ok; + } + + +#undef PAIR_TAG + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_glyph_load */ + /* */ + /* <Description> */ + /* A driver method used to load a glyph within a given glyph slot. */ + /* */ + /* <Input> */ + /* slot :: A handle to the target slot object where the glyph */ + /* will be loaded. */ + /* */ + /* size :: A handle to the source face size at which the glyph */ + /* must be scaled, loaded, etc. */ + /* */ + /* glyph_index :: The index of the glyph in the font file. */ + /* */ + /* load_flags :: A flag indicating what to load for this glyph. The */ + /* FT_LOAD_??? constants can be used to control the */ + /* glyph loading process (e.g., whether the outline */ + /* should be scaled, whether to load bitmaps or not, */ + /* whether to hint the outline, etc). */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_CALLBACK_DEF( FT_Error ) + cff_glyph_load( FT_GlyphSlot cffslot, /* CFF_GlyphSlot */ + FT_Size cffsize, /* CFF_Size */ + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FT_Error error; + CFF_GlyphSlot slot = (CFF_GlyphSlot)cffslot; + CFF_Size size = (CFF_Size)cffsize; + + + if ( !slot ) + return CFF_Err_Invalid_Slot_Handle; + + /* check whether we want a scaled outline or bitmap */ + if ( !size ) + load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; + + /* reset the size object if necessary */ + if ( load_flags & FT_LOAD_NO_SCALE ) + size = NULL; + + if ( size ) + { + /* these two objects must have the same parent */ + if ( cffsize->face != cffslot->face ) + return CFF_Err_Invalid_Face_Handle; + } + + /* now load the glyph outline if necessary */ + error = cff_slot_load( slot, size, glyph_index, load_flags ); + + /* force drop-out mode to 2 - irrelevant now */ + /* slot->outline.dropout_mode = 2; */ + + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + cff_get_advances( FT_Face face, + FT_UInt start, + FT_UInt count, + FT_Int32 flags, + FT_Fixed* advances ) + { + FT_UInt nn; + FT_Error error = CFF_Err_Ok; + FT_GlyphSlot slot = face->glyph; + + + flags |= (FT_UInt32)FT_LOAD_ADVANCE_ONLY; + + for ( nn = 0; nn < count; nn++ ) + { + error = cff_glyph_load( slot, face->size, start + nn, flags ); + if ( error ) + break; + + advances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT ) + ? slot->linearVertAdvance + : slot->linearHoriAdvance; + } + + return error; + } + + + /* + * GLYPH DICT SERVICE + * + */ + + static FT_Error + cff_get_glyph_name( CFF_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ) + { + CFF_Font font = (CFF_Font)face->extra.data; + FT_String* gname; + FT_UShort sid; + FT_Error error; + + + if ( !font->psnames ) + { + FT_ERROR(( "cff_get_glyph_name:" + " cannot get glyph name from CFF & CEF fonts\n" + " " + " without the `PSNames' module\n" )); + error = CFF_Err_Missing_Module; + goto Exit; + } + + /* first, locate the sid in the charset table */ + sid = font->charset.sids[glyph_index]; + + /* now, lookup the name itself */ + gname = cff_index_get_sid_string( font, sid ); + + if ( gname ) + FT_STRCPYN( buffer, gname, buffer_max ); + + error = CFF_Err_Ok; + + Exit: + return error; + } + + + static FT_UInt + cff_get_name_index( CFF_Face face, + FT_String* glyph_name ) + { + CFF_Font cff; + CFF_Charset charset; + FT_Service_PsCMaps psnames; + FT_String* name; + FT_UShort sid; + FT_UInt i; + + + cff = (CFF_FontRec *)face->extra.data; + charset = &cff->charset; + + FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); + if ( !psnames ) + return 0; + + for ( i = 0; i < cff->num_glyphs; i++ ) + { + sid = charset->sids[i]; + + if ( sid > 390 ) + name = cff_index_get_string( cff, sid - 391 ); + else + name = (FT_String *)psnames->adobe_std_strings( sid ); + + if ( !name ) + continue; + + if ( !ft_strcmp( glyph_name, name ) ) + return i; + } + + return 0; + } + + + FT_DEFINE_SERVICE_GLYPHDICTREC(cff_service_glyph_dict, + (FT_GlyphDict_GetNameFunc) cff_get_glyph_name, + (FT_GlyphDict_NameIndexFunc)cff_get_name_index + ) + + + /* + * POSTSCRIPT INFO SERVICE + * + */ + + static FT_Int + cff_ps_has_glyph_names( FT_Face face ) + { + return ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) > 0; + } + + + static FT_Error + cff_ps_get_font_info( CFF_Face face, + PS_FontInfoRec* afont_info ) + { + CFF_Font cff = (CFF_Font)face->extra.data; + FT_Error error = CFF_Err_Ok; + + + if ( cff && cff->font_info == NULL ) + { + CFF_FontRecDict dict = &cff->top_font.font_dict; + PS_FontInfoRec *font_info = NULL; + FT_Memory memory = face->root.memory; + + + if ( FT_ALLOC( font_info, sizeof ( *font_info ) ) ) + goto Fail; + + font_info->version = cff_index_get_sid_string( cff, + dict->version ); + font_info->notice = cff_index_get_sid_string( cff, + dict->notice ); + font_info->full_name = cff_index_get_sid_string( cff, + dict->full_name ); + font_info->family_name = cff_index_get_sid_string( cff, + dict->family_name ); + font_info->weight = cff_index_get_sid_string( cff, + dict->weight ); + font_info->italic_angle = dict->italic_angle; + font_info->is_fixed_pitch = dict->is_fixed_pitch; + font_info->underline_position = (FT_Short)dict->underline_position; + font_info->underline_thickness = (FT_Short)dict->underline_thickness; + + cff->font_info = font_info; + } + + if ( cff ) + *afont_info = *cff->font_info; + + Fail: + return error; + } + + + FT_DEFINE_SERVICE_PSINFOREC(cff_service_ps_info, + (PS_GetFontInfoFunc) cff_ps_get_font_info, + (PS_GetFontExtraFunc) NULL, + (PS_HasGlyphNamesFunc) cff_ps_has_glyph_names, + (PS_GetFontPrivateFunc)NULL, /* unsupported with CFF fonts */ + (PS_GetFontValueFunc) NULL /* not implemented */ + ) + + + /* + * POSTSCRIPT NAME SERVICE + * + */ + + static const char* + cff_get_ps_name( CFF_Face face ) + { + CFF_Font cff = (CFF_Font)face->extra.data; + + + return (const char*)cff->font_name; + } + + + FT_DEFINE_SERVICE_PSFONTNAMEREC(cff_service_ps_name, + (FT_PsName_GetFunc)cff_get_ps_name + ) + + + /* + * TT CMAP INFO + * + * If the charmap is a synthetic Unicode encoding cmap or + * a Type 1 standard (or expert) encoding cmap, hide TT CMAP INFO + * service defined in SFNT module. + * + * Otherwise call the service function in the sfnt module. + * + */ + static FT_Error + cff_get_cmap_info( FT_CharMap charmap, + TT_CMapInfo *cmap_info ) + { + FT_CMap cmap = FT_CMAP( charmap ); + FT_Error error = CFF_Err_Ok; + FT_Face face = FT_CMAP_FACE( cmap ); + FT_Library library = FT_FACE_LIBRARY( face ); + + + cmap_info->language = 0; + cmap_info->format = 0; + + if ( cmap->clazz != &FT_CFF_CMAP_ENCODING_CLASS_REC_GET && + cmap->clazz != &FT_CFF_CMAP_UNICODE_CLASS_REC_GET ) + { + FT_Module sfnt = FT_Get_Module( library, "sfnt" ); + FT_Service_TTCMaps service = + (FT_Service_TTCMaps)ft_module_get_service( sfnt, + FT_SERVICE_ID_TT_CMAP ); + + + if ( service && service->get_cmap_info ) + error = service->get_cmap_info( charmap, cmap_info ); + } + + return error; + } + + + FT_DEFINE_SERVICE_TTCMAPSREC(cff_service_get_cmap_info, + (TT_CMap_Info_GetFunc)cff_get_cmap_info + ) + + + /* + * CID INFO SERVICE + * + */ + static FT_Error + cff_get_ros( CFF_Face face, + const char* *registry, + const char* *ordering, + FT_Int *supplement ) + { + FT_Error error = CFF_Err_Ok; + CFF_Font cff = (CFF_Font)face->extra.data; + + + if ( cff ) + { + CFF_FontRecDict dict = &cff->top_font.font_dict; + + + if ( dict->cid_registry == 0xFFFFU ) + { + error = CFF_Err_Invalid_Argument; + goto Fail; + } + + if ( registry ) + { + if ( cff->registry == NULL ) + cff->registry = cff_index_get_sid_string( cff, + dict->cid_registry ); + *registry = cff->registry; + } + + if ( ordering ) + { + if ( cff->ordering == NULL ) + cff->ordering = cff_index_get_sid_string( cff, + dict->cid_ordering ); + *ordering = cff->ordering; + } + + /* + * XXX: According to Adobe TechNote #5176, the supplement in CFF + * can be a real number. We truncate it to fit public API + * since freetype-2.3.6. + */ + if ( supplement ) + { + if ( dict->cid_supplement < FT_INT_MIN || + dict->cid_supplement > FT_INT_MAX ) + FT_TRACE1(( "cff_get_ros: too large supplement %d is truncated\n", + dict->cid_supplement )); + *supplement = (FT_Int)dict->cid_supplement; + } + } + + Fail: + return error; + } + + + static FT_Error + cff_get_is_cid( CFF_Face face, + FT_Bool *is_cid ) + { + FT_Error error = CFF_Err_Ok; + CFF_Font cff = (CFF_Font)face->extra.data; + + + *is_cid = 0; + + if ( cff ) + { + CFF_FontRecDict dict = &cff->top_font.font_dict; + + + if ( dict->cid_registry != 0xFFFFU ) + *is_cid = 1; + } + + return error; + } + + + static FT_Error + cff_get_cid_from_glyph_index( CFF_Face face, + FT_UInt glyph_index, + FT_UInt *cid ) + { + FT_Error error = CFF_Err_Ok; + CFF_Font cff; + + + cff = (CFF_Font)face->extra.data; + + if ( cff ) + { + FT_UInt c; + CFF_FontRecDict dict = &cff->top_font.font_dict; + + + if ( dict->cid_registry == 0xFFFFU ) + { + error = CFF_Err_Invalid_Argument; + goto Fail; + } + + if ( glyph_index > cff->num_glyphs ) + { + error = CFF_Err_Invalid_Argument; + goto Fail; + } + + c = cff->charset.sids[glyph_index]; + + if ( cid ) + *cid = c; + } + + Fail: + return error; + } + + + FT_DEFINE_SERVICE_CIDREC(cff_service_cid_info, + (FT_CID_GetRegistryOrderingSupplementFunc)cff_get_ros, + (FT_CID_GetIsInternallyCIDKeyedFunc) cff_get_is_cid, + (FT_CID_GetCIDFromGlyphIndexFunc) cff_get_cid_from_glyph_index + ) + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** D R I V E R I N T E R F A C E ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ +#ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES + FT_DEFINE_SERVICEDESCREC6(cff_services, + FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CFF, + FT_SERVICE_ID_POSTSCRIPT_INFO, &FT_CFF_SERVICE_PS_INFO_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_CFF_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_GLYPH_DICT, &FT_CFF_SERVICE_GLYPH_DICT_GET, + FT_SERVICE_ID_TT_CMAP, &FT_CFF_SERVICE_GET_CMAP_INFO_GET, + FT_SERVICE_ID_CID, &FT_CFF_SERVICE_CID_INFO_GET + ) +#else + FT_DEFINE_SERVICEDESCREC5(cff_services, + FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CFF, + FT_SERVICE_ID_POSTSCRIPT_INFO, &FT_CFF_SERVICE_PS_INFO_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_CFF_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_TT_CMAP, &FT_CFF_SERVICE_GET_CMAP_INFO_GET, + FT_SERVICE_ID_CID, &FT_CFF_SERVICE_CID_INFO_GET + ) +#endif + + FT_CALLBACK_DEF( FT_Module_Interface ) + cff_get_interface( FT_Module driver, /* CFF_Driver */ + const char* module_interface ) + { + FT_Library library; + FT_Module sfnt; + FT_Module_Interface result; + + + /* FT_CFF_SERVICES_GET derefers `library' in PIC mode */ +#ifdef FT_CONFIG_OPTION_PIC + if ( !driver ) + return NULL; + library = driver->library; + if ( !library ) + return NULL; +#endif + + result = ft_service_list_lookup( FT_CFF_SERVICES_GET, module_interface ); + if ( result != NULL ) + return result; + + /* `driver' is not yet evaluated in non-PIC mode */ +#ifndef FT_CONFIG_OPTION_PIC + if ( !driver ) + return NULL; + library = driver->library; + if ( !library ) + return NULL; +#endif + + /* we pass our request to the `sfnt' module */ + sfnt = FT_Get_Module( library, "sfnt" ); + + return sfnt ? sfnt->clazz->get_interface( sfnt, module_interface ) : 0; + } + + + /* The FT_DriverInterface structure is defined in ftdriver.h. */ + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS +#define CFF_SIZE_SELECT cff_size_select +#else +#define CFF_SIZE_SELECT 0 +#endif + + FT_DEFINE_DRIVER( cff_driver_class, + + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_SCALABLE | + FT_MODULE_DRIVER_HAS_HINTER, + + sizeof ( CFF_DriverRec ), + "cff", + 0x10000L, + 0x20000L, + + 0, /* module-specific interface */ + + cff_driver_init, + cff_driver_done, + cff_get_interface, + + /* now the specific driver fields */ + sizeof ( TT_FaceRec ), + sizeof ( CFF_SizeRec ), + sizeof ( CFF_GlyphSlotRec ), + + cff_face_init, + cff_face_done, + cff_size_init, + cff_size_done, + cff_slot_init, + cff_slot_done, + + ft_stub_set_char_sizes, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + ft_stub_set_pixel_sizes, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + cff_glyph_load, + + cff_get_kerning, + 0, /* FT_Face_AttachFunc */ + cff_get_advances, + + cff_size_request, + + CFF_SIZE_SELECT + ) + + +/* END */ diff --git a/src/cff/cffdrivr.h b/src/cff/cffdrivr.h new file mode 100644 index 0000000..50e8138 --- /dev/null +++ b/src/cff/cffdrivr.h @@ -0,0 +1,38 @@ +/***************************************************************************/ +/* */ +/* cffdrivr.h */ +/* */ +/* High-level OpenType driver interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFDRIVER_H__ +#define __CFFDRIVER_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + + + FT_DECLARE_DRIVER( cff_driver_class ) + + +FT_END_HEADER + +#endif /* __CFFDRIVER_H__ */ + + +/* END */ diff --git a/src/cff/cfferrs.h b/src/cff/cfferrs.h new file mode 100644 index 0000000..801d73e --- /dev/null +++ b/src/cff/cfferrs.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* cfferrs.h */ +/* */ +/* CFF error codes (specification only). */ +/* */ +/* Copyright 2001, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the CFF error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __CFFERRS_H__ +#define __CFFERRS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX CFF_Err_ +#define FT_ERR_BASE FT_Mod_Err_CFF + + +#include FT_ERRORS_H + +#endif /* __CFFERRS_H__ */ + + +/* END */ diff --git a/src/cff/cffgload.c b/src/cff/cffgload.c new file mode 100644 index 0000000..84847fd --- /dev/null +++ b/src/cff/cffgload.c @@ -0,0 +1,2972 @@ +/***************************************************************************/ +/* */ +/* cffgload.c */ +/* */ +/* OpenType Glyph Loader (body). */ +/* */ +/* Copyright 1996-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include FT_OUTLINE_H + +#include "cffobjs.h" +#include "cffload.h" +#include "cffgload.h" + +#include "cfferrs.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cffgload + + + typedef enum CFF_Operator_ + { + cff_op_unknown = 0, + + cff_op_rmoveto, + cff_op_hmoveto, + cff_op_vmoveto, + + cff_op_rlineto, + cff_op_hlineto, + cff_op_vlineto, + + cff_op_rrcurveto, + cff_op_hhcurveto, + cff_op_hvcurveto, + cff_op_rcurveline, + cff_op_rlinecurve, + cff_op_vhcurveto, + cff_op_vvcurveto, + + cff_op_flex, + cff_op_hflex, + cff_op_hflex1, + cff_op_flex1, + + cff_op_endchar, + + cff_op_hstem, + cff_op_vstem, + cff_op_hstemhm, + cff_op_vstemhm, + + cff_op_hintmask, + cff_op_cntrmask, + cff_op_dotsection, /* deprecated, acts as no-op */ + + cff_op_abs, + cff_op_add, + cff_op_sub, + cff_op_div, + cff_op_neg, + cff_op_random, + cff_op_mul, + cff_op_sqrt, + + cff_op_blend, + + cff_op_drop, + cff_op_exch, + cff_op_index, + cff_op_roll, + cff_op_dup, + + cff_op_put, + cff_op_get, + cff_op_store, + cff_op_load, + + cff_op_and, + cff_op_or, + cff_op_not, + cff_op_eq, + cff_op_ifelse, + + cff_op_callsubr, + cff_op_callgsubr, + cff_op_return, + + /* Type 1 opcodes: invalid but seen in real life */ + cff_op_hsbw, + cff_op_closepath, + cff_op_callothersubr, + cff_op_pop, + cff_op_seac, + cff_op_sbw, + cff_op_setcurrentpoint, + + /* do not remove */ + cff_op_max + + } CFF_Operator; + + +#define CFF_COUNT_CHECK_WIDTH 0x80 +#define CFF_COUNT_EXACT 0x40 +#define CFF_COUNT_CLEAR_STACK 0x20 + + /* count values which have the `CFF_COUNT_CHECK_WIDTH' flag set are */ + /* used for checking the width and requested numbers of arguments */ + /* only; they are set to zero afterwards */ + + /* the other two flags are informative only and unused currently */ + + static const FT_Byte cff_argument_counts[] = + { + 0, /* unknown */ + + 2 | CFF_COUNT_CHECK_WIDTH | CFF_COUNT_EXACT, /* rmoveto */ + 1 | CFF_COUNT_CHECK_WIDTH | CFF_COUNT_EXACT, + 1 | CFF_COUNT_CHECK_WIDTH | CFF_COUNT_EXACT, + + 0 | CFF_COUNT_CLEAR_STACK, /* rlineto */ + 0 | CFF_COUNT_CLEAR_STACK, + 0 | CFF_COUNT_CLEAR_STACK, + + 0 | CFF_COUNT_CLEAR_STACK, /* rrcurveto */ + 0 | CFF_COUNT_CLEAR_STACK, + 0 | CFF_COUNT_CLEAR_STACK, + 0 | CFF_COUNT_CLEAR_STACK, + 0 | CFF_COUNT_CLEAR_STACK, + 0 | CFF_COUNT_CLEAR_STACK, + 0 | CFF_COUNT_CLEAR_STACK, + + 13, /* flex */ + 7, + 9, + 11, + + 0 | CFF_COUNT_CHECK_WIDTH, /* endchar */ + + 2 | CFF_COUNT_CHECK_WIDTH, /* hstem */ + 2 | CFF_COUNT_CHECK_WIDTH, + 2 | CFF_COUNT_CHECK_WIDTH, + 2 | CFF_COUNT_CHECK_WIDTH, + + 0 | CFF_COUNT_CHECK_WIDTH, /* hintmask */ + 0 | CFF_COUNT_CHECK_WIDTH, /* cntrmask */ + 0, /* dotsection */ + + 1, /* abs */ + 2, + 2, + 2, + 1, + 0, + 2, + 1, + + 1, /* blend */ + + 1, /* drop */ + 2, + 1, + 2, + 1, + + 2, /* put */ + 1, + 4, + 3, + + 2, /* and */ + 2, + 1, + 2, + 4, + + 1, /* callsubr */ + 1, + 0, + + 2, /* hsbw */ + 0, + 0, + 0, + 5, /* seac */ + 4, /* sbw */ + 2 /* setcurrentpoint */ + }; + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********** *********/ + /********** *********/ + /********** GENERIC CHARSTRING PARSING *********/ + /********** *********/ + /********** *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_builder_init */ + /* */ + /* <Description> */ + /* Initializes a given glyph builder. */ + /* */ + /* <InOut> */ + /* builder :: A pointer to the glyph builder to initialize. */ + /* */ + /* <Input> */ + /* face :: The current face object. */ + /* */ + /* size :: The current size object. */ + /* */ + /* glyph :: The current glyph object. */ + /* */ + /* hinting :: Whether hinting is active. */ + /* */ + static void + cff_builder_init( CFF_Builder* builder, + TT_Face face, + CFF_Size size, + CFF_GlyphSlot glyph, + FT_Bool hinting ) + { + builder->path_begun = 0; + builder->load_points = 1; + + builder->face = face; + builder->glyph = glyph; + builder->memory = face->root.memory; + + if ( glyph ) + { + FT_GlyphLoader loader = glyph->root.internal->loader; + + + builder->loader = loader; + builder->base = &loader->base.outline; + builder->current = &loader->current.outline; + FT_GlyphLoader_Rewind( loader ); + + builder->hints_globals = 0; + builder->hints_funcs = 0; + + if ( hinting && size ) + { + CFF_Internal internal = (CFF_Internal)size->root.internal; + + + builder->hints_globals = (void *)internal->topfont; + builder->hints_funcs = glyph->root.internal->glyph_hints; + } + } + + builder->pos_x = 0; + builder->pos_y = 0; + + builder->left_bearing.x = 0; + builder->left_bearing.y = 0; + builder->advance.x = 0; + builder->advance.y = 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_builder_done */ + /* */ + /* <Description> */ + /* Finalizes a given glyph builder. Its contents can still be used */ + /* after the call, but the function saves important information */ + /* within the corresponding glyph slot. */ + /* */ + /* <Input> */ + /* builder :: A pointer to the glyph builder to finalize. */ + /* */ + static void + cff_builder_done( CFF_Builder* builder ) + { + CFF_GlyphSlot glyph = builder->glyph; + + + if ( glyph ) + glyph->root.outline = *builder->base; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_compute_bias */ + /* */ + /* <Description> */ + /* Computes the bias value in dependence of the number of glyph */ + /* subroutines. */ + /* */ + /* <Input> */ + /* in_charstring_type :: The `CharstringType' value of the top DICT */ + /* dictionary. */ + /* */ + /* num_subrs :: The number of glyph subroutines. */ + /* */ + /* <Return> */ + /* The bias value. */ + static FT_Int + cff_compute_bias( FT_Int in_charstring_type, + FT_UInt num_subrs ) + { + FT_Int result; + + + if ( in_charstring_type == 1 ) + result = 0; + else if ( num_subrs < 1240 ) + result = 107; + else if ( num_subrs < 33900U ) + result = 1131; + else + result = 32768U; + + return result; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_decoder_init */ + /* */ + /* <Description> */ + /* Initializes a given glyph decoder. */ + /* */ + /* <InOut> */ + /* decoder :: A pointer to the glyph builder to initialize. */ + /* */ + /* <Input> */ + /* face :: The current face object. */ + /* */ + /* size :: The current size object. */ + /* */ + /* slot :: The current glyph object. */ + /* */ + /* hinting :: Whether hinting is active. */ + /* */ + /* hint_mode :: The hinting mode. */ + /* */ + FT_LOCAL_DEF( void ) + cff_decoder_init( CFF_Decoder* decoder, + TT_Face face, + CFF_Size size, + CFF_GlyphSlot slot, + FT_Bool hinting, + FT_Render_Mode hint_mode ) + { + CFF_Font cff = (CFF_Font)face->extra.data; + + + /* clear everything */ + FT_MEM_ZERO( decoder, sizeof ( *decoder ) ); + + /* initialize builder */ + cff_builder_init( &decoder->builder, face, size, slot, hinting ); + + /* initialize Type2 decoder */ + decoder->cff = cff; + decoder->num_globals = cff->global_subrs_index.count; + decoder->globals = cff->global_subrs; + decoder->globals_bias = cff_compute_bias( + cff->top_font.font_dict.charstring_type, + decoder->num_globals ); + + decoder->hint_mode = hint_mode; + } + + + /* this function is used to select the subfont */ + /* and the locals subrs array */ + FT_LOCAL_DEF( FT_Error ) + cff_decoder_prepare( CFF_Decoder* decoder, + CFF_Size size, + FT_UInt glyph_index ) + { + CFF_Builder *builder = &decoder->builder; + CFF_Font cff = (CFF_Font)builder->face->extra.data; + CFF_SubFont sub = &cff->top_font; + FT_Error error = CFF_Err_Ok; + + + /* manage CID fonts */ + if ( cff->num_subfonts ) + { + FT_Byte fd_index = cff_fd_select_get( &cff->fd_select, glyph_index ); + + + if ( fd_index >= cff->num_subfonts ) + { + FT_TRACE4(( "cff_decoder_prepare: invalid CID subfont index\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + FT_TRACE3(( "glyph index %d (subfont %d):\n", glyph_index, fd_index )); + + sub = cff->subfonts[fd_index]; + + if ( builder->hints_funcs && size ) + { + CFF_Internal internal = (CFF_Internal)size->root.internal; + + + /* for CFFs without subfonts, this value has already been set */ + builder->hints_globals = (void *)internal->subfonts[fd_index]; + } + } +#ifdef FT_DEBUG_LEVEL_TRACE + else + FT_TRACE3(( "glyph index %d:\n", glyph_index )); +#endif + + decoder->num_locals = sub->local_subrs_index.count; + decoder->locals = sub->local_subrs; + decoder->locals_bias = cff_compute_bias( + decoder->cff->top_font.font_dict.charstring_type, + decoder->num_locals ); + + decoder->glyph_width = sub->private_dict.default_width; + decoder->nominal_width = sub->private_dict.nominal_width; + + Exit: + return error; + } + + + /* check that there is enough space for `count' more points */ + static FT_Error + check_points( CFF_Builder* builder, + FT_Int count ) + { + return FT_GLYPHLOADER_CHECK_POINTS( builder->loader, count, 0 ); + } + + + /* add a new point, do not check space */ + static void + cff_builder_add_point( CFF_Builder* builder, + FT_Pos x, + FT_Pos y, + FT_Byte flag ) + { + FT_Outline* outline = builder->current; + + + if ( builder->load_points ) + { + FT_Vector* point = outline->points + outline->n_points; + FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points; + + + point->x = x >> 16; + point->y = y >> 16; + *control = (FT_Byte)( flag ? FT_CURVE_TAG_ON : FT_CURVE_TAG_CUBIC ); + } + + outline->n_points++; + } + + + /* check space for a new on-curve point, then add it */ + static FT_Error + cff_builder_add_point1( CFF_Builder* builder, + FT_Pos x, + FT_Pos y ) + { + FT_Error error; + + + error = check_points( builder, 1 ); + if ( !error ) + cff_builder_add_point( builder, x, y, 1 ); + + return error; + } + + + /* check space for a new contour, then add it */ + static FT_Error + cff_builder_add_contour( CFF_Builder* builder ) + { + FT_Outline* outline = builder->current; + FT_Error error; + + + if ( !builder->load_points ) + { + outline->n_contours++; + return CFF_Err_Ok; + } + + error = FT_GLYPHLOADER_CHECK_POINTS( builder->loader, 0, 1 ); + if ( !error ) + { + if ( outline->n_contours > 0 ) + outline->contours[outline->n_contours - 1] = + (short)( outline->n_points - 1 ); + + outline->n_contours++; + } + + return error; + } + + + /* if a path was begun, add its first on-curve point */ + static FT_Error + cff_builder_start_point( CFF_Builder* builder, + FT_Pos x, + FT_Pos y ) + { + FT_Error error = CFF_Err_Ok; + + + /* test whether we are building a new contour */ + if ( !builder->path_begun ) + { + builder->path_begun = 1; + error = cff_builder_add_contour( builder ); + if ( !error ) + error = cff_builder_add_point1( builder, x, y ); + } + + return error; + } + + + /* close the current contour */ + static void + cff_builder_close_contour( CFF_Builder* builder ) + { + FT_Outline* outline = builder->current; + FT_Int first; + + + if ( !outline ) + return; + + first = outline->n_contours <= 1 + ? 0 : outline->contours[outline->n_contours - 2] + 1; + + /* We must not include the last point in the path if it */ + /* is located on the first point. */ + if ( outline->n_points > 1 ) + { + FT_Vector* p1 = outline->points + first; + FT_Vector* p2 = outline->points + outline->n_points - 1; + FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points - 1; + + + /* `delete' last point only if it coincides with the first */ + /* point and if it is not a control point (which can happen). */ + if ( p1->x == p2->x && p1->y == p2->y ) + if ( *control == FT_CURVE_TAG_ON ) + outline->n_points--; + } + + if ( outline->n_contours > 0 ) + { + /* Don't add contours only consisting of one point, i.e., */ + /* check whether begin point and last point are the same. */ + if ( first == outline->n_points - 1 ) + { + outline->n_contours--; + outline->n_points--; + } + else + outline->contours[outline->n_contours - 1] = + (short)( outline->n_points - 1 ); + } + } + + + static FT_Int + cff_lookup_glyph_by_stdcharcode( CFF_Font cff, + FT_Int charcode ) + { + FT_UInt n; + FT_UShort glyph_sid; + + + /* CID-keyed fonts don't have glyph names */ + if ( !cff->charset.sids ) + return -1; + + /* check range of standard char code */ + if ( charcode < 0 || charcode > 255 ) + return -1; + + /* Get code to SID mapping from `cff_standard_encoding'. */ + glyph_sid = cff_get_standard_encoding( (FT_UInt)charcode ); + + for ( n = 0; n < cff->num_glyphs; n++ ) + { + if ( cff->charset.sids[n] == glyph_sid ) + return n; + } + + return -1; + } + + + static FT_Error + cff_get_glyph_data( TT_Face face, + FT_UInt glyph_index, + FT_Byte** pointer, + FT_ULong* length ) + { +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* For incremental fonts get the character data using the */ + /* callback function. */ + if ( face->root.internal->incremental_interface ) + { + FT_Data data; + FT_Error error = + face->root.internal->incremental_interface->funcs->get_glyph_data( + face->root.internal->incremental_interface->object, + glyph_index, &data ); + + + *pointer = (FT_Byte*)data.pointer; + *length = data.length; + + return error; + } + else +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + { + CFF_Font cff = (CFF_Font)(face->extra.data); + + + return cff_index_access_element( &cff->charstrings_index, glyph_index, + pointer, length ); + } + } + + + static void + cff_free_glyph_data( TT_Face face, + FT_Byte** pointer, + FT_ULong length ) + { +#ifndef FT_CONFIG_OPTION_INCREMENTAL + FT_UNUSED( length ); +#endif + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* For incremental fonts get the character data using the */ + /* callback function. */ + if ( face->root.internal->incremental_interface ) + { + FT_Data data; + + + data.pointer = *pointer; + data.length = length; + + face->root.internal->incremental_interface->funcs->free_glyph_data( + face->root.internal->incremental_interface->object, &data ); + } + else +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + { + CFF_Font cff = (CFF_Font)(face->extra.data); + + + cff_index_forget_element( &cff->charstrings_index, pointer ); + } + } + + + static FT_Error + cff_operator_seac( CFF_Decoder* decoder, + FT_Pos asb, + FT_Pos adx, + FT_Pos ady, + FT_Int bchar, + FT_Int achar ) + { + FT_Error error; + CFF_Builder* builder = &decoder->builder; + FT_Int bchar_index, achar_index; + TT_Face face = decoder->builder.face; + FT_Vector left_bearing, advance; + FT_Byte* charstring; + FT_ULong charstring_len; + FT_Pos glyph_width; + + + if ( decoder->seac ) + { + FT_ERROR(( "cff_operator_seac: invalid nested seac\n" )); + return CFF_Err_Syntax_Error; + } + + adx += decoder->builder.left_bearing.x; + ady += decoder->builder.left_bearing.y; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* Incremental fonts don't necessarily have valid charsets. */ + /* They use the character code, not the glyph index, in this case. */ + if ( face->root.internal->incremental_interface ) + { + bchar_index = bchar; + achar_index = achar; + } + else +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + { + CFF_Font cff = (CFF_Font)(face->extra.data); + + + bchar_index = cff_lookup_glyph_by_stdcharcode( cff, bchar ); + achar_index = cff_lookup_glyph_by_stdcharcode( cff, achar ); + } + + if ( bchar_index < 0 || achar_index < 0 ) + { + FT_ERROR(( "cff_operator_seac:" + " invalid seac character code arguments\n" )); + return CFF_Err_Syntax_Error; + } + + /* If we are trying to load a composite glyph, do not load the */ + /* accent character and return the array of subglyphs. */ + if ( builder->no_recurse ) + { + FT_GlyphSlot glyph = (FT_GlyphSlot)builder->glyph; + FT_GlyphLoader loader = glyph->internal->loader; + FT_SubGlyph subg; + + + /* reallocate subglyph array if necessary */ + error = FT_GlyphLoader_CheckSubGlyphs( loader, 2 ); + if ( error ) + goto Exit; + + subg = loader->current.subglyphs; + + /* subglyph 0 = base character */ + subg->index = bchar_index; + subg->flags = FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES | + FT_SUBGLYPH_FLAG_USE_MY_METRICS; + subg->arg1 = 0; + subg->arg2 = 0; + subg++; + + /* subglyph 1 = accent character */ + subg->index = achar_index; + subg->flags = FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES; + subg->arg1 = (FT_Int)( adx >> 16 ); + subg->arg2 = (FT_Int)( ady >> 16 ); + + /* set up remaining glyph fields */ + glyph->num_subglyphs = 2; + glyph->subglyphs = loader->base.subglyphs; + glyph->format = FT_GLYPH_FORMAT_COMPOSITE; + + loader->current.num_subglyphs = 2; + } + + FT_GlyphLoader_Prepare( builder->loader ); + + /* First load `bchar' in builder */ + error = cff_get_glyph_data( face, bchar_index, + &charstring, &charstring_len ); + if ( !error ) + { + /* the seac operator must not be nested */ + decoder->seac = TRUE; + error = cff_decoder_parse_charstrings( decoder, charstring, + charstring_len ); + decoder->seac = FALSE; + + cff_free_glyph_data( face, &charstring, charstring_len ); + + if ( error ) + goto Exit; + } + + /* Save the left bearing, advance and glyph width of the base */ + /* character as they will be erased by the next load. */ + + left_bearing = builder->left_bearing; + advance = builder->advance; + glyph_width = decoder->glyph_width; + + builder->left_bearing.x = 0; + builder->left_bearing.y = 0; + + builder->pos_x = adx - asb; + builder->pos_y = ady; + + /* Now load `achar' on top of the base outline. */ + error = cff_get_glyph_data( face, achar_index, + &charstring, &charstring_len ); + if ( !error ) + { + /* the seac operator must not be nested */ + decoder->seac = TRUE; + error = cff_decoder_parse_charstrings( decoder, charstring, + charstring_len ); + decoder->seac = FALSE; + + cff_free_glyph_data( face, &charstring, charstring_len ); + + if ( error ) + goto Exit; + } + + /* Restore the left side bearing, advance and glyph width */ + /* of the base character. */ + builder->left_bearing = left_bearing; + builder->advance = advance; + decoder->glyph_width = glyph_width; + + builder->pos_x = 0; + builder->pos_y = 0; + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cff_decoder_parse_charstrings */ + /* */ + /* <Description> */ + /* Parses a given Type 2 charstrings program. */ + /* */ + /* <InOut> */ + /* decoder :: The current Type 1 decoder. */ + /* */ + /* <Input> */ + /* charstring_base :: The base of the charstring stream. */ + /* */ + /* charstring_len :: The length in bytes of the charstring stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + cff_decoder_parse_charstrings( CFF_Decoder* decoder, + FT_Byte* charstring_base, + FT_ULong charstring_len ) + { + FT_Error error; + CFF_Decoder_Zone* zone; + FT_Byte* ip; + FT_Byte* limit; + CFF_Builder* builder = &decoder->builder; + FT_Pos x, y; + FT_Fixed seed; + FT_Fixed* stack; + FT_Int charstring_type = + decoder->cff->top_font.font_dict.charstring_type; + + T2_Hints_Funcs hinter; + + + /* set default width */ + decoder->num_hints = 0; + decoder->read_width = 1; + + /* compute random seed from stack address of parameter */ + seed = (FT_Fixed)( ( (FT_PtrDist)(char*)&seed ^ + (FT_PtrDist)(char*)&decoder ^ + (FT_PtrDist)(char*)&charstring_base ) & + FT_ULONG_MAX ) ; + seed = ( seed ^ ( seed >> 10 ) ^ ( seed >> 20 ) ) & 0xFFFFL; + if ( seed == 0 ) + seed = 0x7384; + + /* initialize the decoder */ + decoder->top = decoder->stack; + decoder->zone = decoder->zones; + zone = decoder->zones; + stack = decoder->top; + + hinter = (T2_Hints_Funcs)builder->hints_funcs; + + builder->path_begun = 0; + + zone->base = charstring_base; + limit = zone->limit = charstring_base + charstring_len; + ip = zone->cursor = zone->base; + + error = CFF_Err_Ok; + + x = builder->pos_x; + y = builder->pos_y; + + /* begin hints recording session, if any */ + if ( hinter ) + hinter->open( hinter->hints ); + + /* now execute loop */ + while ( ip < limit ) + { + CFF_Operator op; + FT_Byte v; + + + /********************************************************************/ + /* */ + /* Decode operator or operand */ + /* */ + v = *ip++; + if ( v >= 32 || v == 28 ) + { + FT_Int shift = 16; + FT_Int32 val; + + + /* this is an operand, push it on the stack */ + if ( v == 28 ) + { + if ( ip + 1 >= limit ) + goto Syntax_Error; + val = (FT_Short)( ( (FT_Short)ip[0] << 8 ) | ip[1] ); + ip += 2; + } + else if ( v < 247 ) + val = (FT_Int32)v - 139; + else if ( v < 251 ) + { + if ( ip >= limit ) + goto Syntax_Error; + val = ( (FT_Int32)v - 247 ) * 256 + *ip++ + 108; + } + else if ( v < 255 ) + { + if ( ip >= limit ) + goto Syntax_Error; + val = -( (FT_Int32)v - 251 ) * 256 - *ip++ - 108; + } + else + { + if ( ip + 3 >= limit ) + goto Syntax_Error; + val = ( (FT_Int32)ip[0] << 24 ) | + ( (FT_Int32)ip[1] << 16 ) | + ( (FT_Int32)ip[2] << 8 ) | + ip[3]; + ip += 4; + if ( charstring_type == 2 ) + shift = 0; + } + if ( decoder->top - stack >= CFF_MAX_OPERANDS ) + goto Stack_Overflow; + + val <<= shift; + *decoder->top++ = val; + +#ifdef FT_DEBUG_LEVEL_TRACE + if ( !( val & 0xFFFFL ) ) + FT_TRACE4(( " %ld", (FT_Int32)( val >> 16 ) )); + else + FT_TRACE4(( " %.2f", val / 65536.0 )); +#endif + + } + else + { + /* The specification says that normally arguments are to be taken */ + /* from the bottom of the stack. However, this seems not to be */ + /* correct, at least for Acroread 7.0.8 on GNU/Linux: It pops the */ + /* arguments similar to a PS interpreter. */ + + FT_Fixed* args = decoder->top; + FT_Int num_args = (FT_Int)( args - decoder->stack ); + FT_Int req_args; + + + /* find operator */ + op = cff_op_unknown; + + switch ( v ) + { + case 1: + op = cff_op_hstem; + break; + case 3: + op = cff_op_vstem; + break; + case 4: + op = cff_op_vmoveto; + break; + case 5: + op = cff_op_rlineto; + break; + case 6: + op = cff_op_hlineto; + break; + case 7: + op = cff_op_vlineto; + break; + case 8: + op = cff_op_rrcurveto; + break; + case 9: + op = cff_op_closepath; + break; + case 10: + op = cff_op_callsubr; + break; + case 11: + op = cff_op_return; + break; + case 12: + { + if ( ip >= limit ) + goto Syntax_Error; + v = *ip++; + + switch ( v ) + { + case 0: + op = cff_op_dotsection; + break; + case 1: /* this is actually the Type1 vstem3 operator */ + op = cff_op_vstem; + break; + case 2: /* this is actually the Type1 hstem3 operator */ + op = cff_op_hstem; + break; + case 3: + op = cff_op_and; + break; + case 4: + op = cff_op_or; + break; + case 5: + op = cff_op_not; + break; + case 6: + op = cff_op_seac; + break; + case 7: + op = cff_op_sbw; + break; + case 8: + op = cff_op_store; + break; + case 9: + op = cff_op_abs; + break; + case 10: + op = cff_op_add; + break; + case 11: + op = cff_op_sub; + break; + case 12: + op = cff_op_div; + break; + case 13: + op = cff_op_load; + break; + case 14: + op = cff_op_neg; + break; + case 15: + op = cff_op_eq; + break; + case 16: + op = cff_op_callothersubr; + break; + case 17: + op = cff_op_pop; + break; + case 18: + op = cff_op_drop; + break; + case 20: + op = cff_op_put; + break; + case 21: + op = cff_op_get; + break; + case 22: + op = cff_op_ifelse; + break; + case 23: + op = cff_op_random; + break; + case 24: + op = cff_op_mul; + break; + case 26: + op = cff_op_sqrt; + break; + case 27: + op = cff_op_dup; + break; + case 28: + op = cff_op_exch; + break; + case 29: + op = cff_op_index; + break; + case 30: + op = cff_op_roll; + break; + case 33: + op = cff_op_setcurrentpoint; + break; + case 34: + op = cff_op_hflex; + break; + case 35: + op = cff_op_flex; + break; + case 36: + op = cff_op_hflex1; + break; + case 37: + op = cff_op_flex1; + break; + default: + FT_TRACE4(( " unknown op (12, %d)\n", v )); + break; + } + } + break; + case 13: + op = cff_op_hsbw; + break; + case 14: + op = cff_op_endchar; + break; + case 16: + op = cff_op_blend; + break; + case 18: + op = cff_op_hstemhm; + break; + case 19: + op = cff_op_hintmask; + break; + case 20: + op = cff_op_cntrmask; + break; + case 21: + op = cff_op_rmoveto; + break; + case 22: + op = cff_op_hmoveto; + break; + case 23: + op = cff_op_vstemhm; + break; + case 24: + op = cff_op_rcurveline; + break; + case 25: + op = cff_op_rlinecurve; + break; + case 26: + op = cff_op_vvcurveto; + break; + case 27: + op = cff_op_hhcurveto; + break; + case 29: + op = cff_op_callgsubr; + break; + case 30: + op = cff_op_vhcurveto; + break; + case 31: + op = cff_op_hvcurveto; + break; + default: + FT_TRACE4(( " unknown op (%d)\n", v )); + break; + } + + if ( op == cff_op_unknown ) + continue; + + /* check arguments */ + req_args = cff_argument_counts[op]; + if ( req_args & CFF_COUNT_CHECK_WIDTH ) + { + if ( num_args > 0 && decoder->read_width ) + { + /* If `nominal_width' is non-zero, the number is really a */ + /* difference against `nominal_width'. Else, the number here */ + /* is truly a width, not a difference against `nominal_width'. */ + /* If the font does not set `nominal_width', then */ + /* `nominal_width' defaults to zero, and so we can set */ + /* `glyph_width' to `nominal_width' plus number on the stack */ + /* -- for either case. */ + + FT_Int set_width_ok; + + + switch ( op ) + { + case cff_op_hmoveto: + case cff_op_vmoveto: + set_width_ok = num_args & 2; + break; + + case cff_op_hstem: + case cff_op_vstem: + case cff_op_hstemhm: + case cff_op_vstemhm: + case cff_op_rmoveto: + case cff_op_hintmask: + case cff_op_cntrmask: + set_width_ok = num_args & 1; + break; + + case cff_op_endchar: + /* If there is a width specified for endchar, we either have */ + /* 1 argument or 5 arguments. We like to argue. */ + set_width_ok = ( num_args == 5 ) || ( num_args == 1 ); + break; + + default: + set_width_ok = 0; + break; + } + + if ( set_width_ok ) + { + decoder->glyph_width = decoder->nominal_width + + ( stack[0] >> 16 ); + + if ( decoder->width_only ) + { + /* we only want the advance width; stop here */ + break; + } + + /* Consumed an argument. */ + num_args--; + } + } + + decoder->read_width = 0; + req_args = 0; + } + + req_args &= 0x000F; + if ( num_args < req_args ) + goto Stack_Underflow; + args -= req_args; + num_args -= req_args; + + /* At this point, `args' points to the first argument of the */ + /* operand in case `req_args' isn't zero. Otherwise, we have */ + /* to adjust `args' manually. */ + + /* Note that we only pop arguments from the stack which we */ + /* really need and can digest so that we can continue in case */ + /* of superfluous stack elements. */ + + switch ( op ) + { + case cff_op_hstem: + case cff_op_vstem: + case cff_op_hstemhm: + case cff_op_vstemhm: + /* the number of arguments is always even here */ + FT_TRACE4(( + op == cff_op_hstem ? " hstem\n" : + ( op == cff_op_vstem ? " vstem\n" : + ( op == cff_op_hstemhm ? " hstemhm\n" : " vstemhm\n" ) ) )); + + if ( hinter ) + hinter->stems( hinter->hints, + ( op == cff_op_hstem || op == cff_op_hstemhm ), + num_args / 2, + args - ( num_args & ~1 ) ); + + decoder->num_hints += num_args / 2; + args = stack; + break; + + case cff_op_hintmask: + case cff_op_cntrmask: + FT_TRACE4(( op == cff_op_hintmask ? " hintmask" : " cntrmask" )); + + /* implement vstem when needed -- */ + /* the specification doesn't say it, but this also works */ + /* with the 'cntrmask' operator */ + /* */ + if ( num_args > 0 ) + { + if ( hinter ) + hinter->stems( hinter->hints, + 0, + num_args / 2, + args - ( num_args & ~1 ) ); + + decoder->num_hints += num_args / 2; + } + + /* In a valid charstring there must be at least one byte */ + /* after `hintmask' or `cntrmask' (e.g., for a `return' */ + /* instruction). Additionally, there must be space for */ + /* `num_hints' bits. */ + + if ( ( ip + ( ( decoder->num_hints + 7 ) >> 3 ) ) >= limit ) + goto Syntax_Error; + + if ( hinter ) + { + if ( op == cff_op_hintmask ) + hinter->hintmask( hinter->hints, + builder->current->n_points, + decoder->num_hints, + ip ); + else + hinter->counter( hinter->hints, + decoder->num_hints, + ip ); + } + +#ifdef FT_DEBUG_LEVEL_TRACE + { + FT_UInt maskbyte; + + + FT_TRACE4(( " (maskbytes:" )); + + for ( maskbyte = 0; + maskbyte < (FT_UInt)( ( decoder->num_hints + 7 ) >> 3 ); + maskbyte++, ip++ ) + FT_TRACE4(( " 0x%02X", *ip )); + + FT_TRACE4(( ")\n" )); + } +#else + ip += ( decoder->num_hints + 7 ) >> 3; +#endif + args = stack; + break; + + case cff_op_rmoveto: + FT_TRACE4(( " rmoveto\n" )); + + cff_builder_close_contour( builder ); + builder->path_begun = 0; + x += args[-2]; + y += args[-1]; + args = stack; + break; + + case cff_op_vmoveto: + FT_TRACE4(( " vmoveto\n" )); + + cff_builder_close_contour( builder ); + builder->path_begun = 0; + y += args[-1]; + args = stack; + break; + + case cff_op_hmoveto: + FT_TRACE4(( " hmoveto\n" )); + + cff_builder_close_contour( builder ); + builder->path_begun = 0; + x += args[-1]; + args = stack; + break; + + case cff_op_rlineto: + FT_TRACE4(( " rlineto\n" )); + + if ( cff_builder_start_point ( builder, x, y ) || + check_points( builder, num_args / 2 ) ) + goto Fail; + + if ( num_args < 2 ) + goto Stack_Underflow; + + args -= num_args & ~1; + while ( args < decoder->top ) + { + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 1 ); + args += 2; + } + args = stack; + break; + + case cff_op_hlineto: + case cff_op_vlineto: + { + FT_Int phase = ( op == cff_op_hlineto ); + + + FT_TRACE4(( op == cff_op_hlineto ? " hlineto\n" + : " vlineto\n" )); + + if ( num_args < 0 ) + goto Stack_Underflow; + + /* there exist subsetted fonts (found in PDFs) */ + /* which call `hlineto' without arguments */ + if ( num_args == 0 ) + break; + + if ( cff_builder_start_point ( builder, x, y ) || + check_points( builder, num_args ) ) + goto Fail; + + args = stack; + while ( args < decoder->top ) + { + if ( phase ) + x += args[0]; + else + y += args[0]; + + if ( cff_builder_add_point1( builder, x, y ) ) + goto Fail; + + args++; + phase ^= 1; + } + args = stack; + } + break; + + case cff_op_rrcurveto: + { + FT_Int nargs; + + + FT_TRACE4(( " rrcurveto\n" )); + + if ( num_args < 6 ) + goto Stack_Underflow; + + nargs = num_args - num_args % 6; + + if ( cff_builder_start_point ( builder, x, y ) || + check_points( builder, nargs / 2 ) ) + goto Fail; + + args -= nargs; + while ( args < decoder->top ) + { + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[2]; + y += args[3]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[4]; + y += args[5]; + cff_builder_add_point( builder, x, y, 1 ); + args += 6; + } + args = stack; + } + break; + + case cff_op_vvcurveto: + { + FT_Int nargs; + + + FT_TRACE4(( " vvcurveto\n" )); + + if ( num_args < 4 ) + goto Stack_Underflow; + + /* if num_args isn't of the form 4n or 4n+1, */ + /* we enforce it by clearing the second bit */ + + nargs = num_args & ~2; + + if ( cff_builder_start_point( builder, x, y ) ) + goto Fail; + + args -= nargs; + + if ( nargs & 1 ) + { + x += args[0]; + args++; + nargs--; + } + + if ( check_points( builder, 3 * ( nargs / 4 ) ) ) + goto Fail; + + while ( args < decoder->top ) + { + y += args[0]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[1]; + y += args[2]; + cff_builder_add_point( builder, x, y, 0 ); + y += args[3]; + cff_builder_add_point( builder, x, y, 1 ); + args += 4; + } + args = stack; + } + break; + + case cff_op_hhcurveto: + { + FT_Int nargs; + + + FT_TRACE4(( " hhcurveto\n" )); + + if ( num_args < 4 ) + goto Stack_Underflow; + + /* if num_args isn't of the form 4n or 4n+1, */ + /* we enforce it by clearing the second bit */ + + nargs = num_args & ~2; + + if ( cff_builder_start_point( builder, x, y ) ) + goto Fail; + + args -= nargs; + if ( nargs & 1 ) + { + y += args[0]; + args++; + nargs--; + } + + if ( check_points( builder, 3 * ( nargs / 4 ) ) ) + goto Fail; + + while ( args < decoder->top ) + { + x += args[0]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[1]; + y += args[2]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[3]; + cff_builder_add_point( builder, x, y, 1 ); + args += 4; + } + args = stack; + } + break; + + case cff_op_vhcurveto: + case cff_op_hvcurveto: + { + FT_Int phase; + FT_Int nargs; + + + FT_TRACE4(( op == cff_op_vhcurveto ? " vhcurveto\n" + : " hvcurveto\n" )); + + if ( cff_builder_start_point( builder, x, y ) ) + goto Fail; + + if ( num_args < 4 ) + goto Stack_Underflow; + + /* if num_args isn't of the form 8n, 8n+1, 8n+4, or 8n+5, */ + /* we enforce it by clearing the second bit */ + + nargs = num_args & ~2; + + args -= nargs; + if ( check_points( builder, ( nargs / 4 ) * 3 ) ) + goto Stack_Underflow; + + phase = ( op == cff_op_hvcurveto ); + + while ( nargs >= 4 ) + { + nargs -= 4; + if ( phase ) + { + x += args[0]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[1]; + y += args[2]; + cff_builder_add_point( builder, x, y, 0 ); + y += args[3]; + if ( nargs == 1 ) + x += args[4]; + cff_builder_add_point( builder, x, y, 1 ); + } + else + { + y += args[0]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[1]; + y += args[2]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[3]; + if ( nargs == 1 ) + y += args[4]; + cff_builder_add_point( builder, x, y, 1 ); + } + args += 4; + phase ^= 1; + } + args = stack; + } + break; + + case cff_op_rlinecurve: + { + FT_Int num_lines; + FT_Int nargs; + + + FT_TRACE4(( " rlinecurve\n" )); + + if ( num_args < 8 ) + goto Stack_Underflow; + + nargs = num_args & ~1; + num_lines = ( nargs - 6 ) / 2; + + if ( cff_builder_start_point( builder, x, y ) || + check_points( builder, num_lines + 3 ) ) + goto Fail; + + args -= nargs; + + /* first, add the line segments */ + while ( num_lines > 0 ) + { + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 1 ); + args += 2; + num_lines--; + } + + /* then the curve */ + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[2]; + y += args[3]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[4]; + y += args[5]; + cff_builder_add_point( builder, x, y, 1 ); + args = stack; + } + break; + + case cff_op_rcurveline: + { + FT_Int num_curves; + FT_Int nargs; + + + FT_TRACE4(( " rcurveline\n" )); + + if ( num_args < 8 ) + goto Stack_Underflow; + + nargs = num_args - 2; + nargs = nargs - nargs % 6 + 2; + num_curves = ( nargs - 2 ) / 6; + + if ( cff_builder_start_point ( builder, x, y ) || + check_points( builder, num_curves * 3 + 2 ) ) + goto Fail; + + args -= nargs; + + /* first, add the curves */ + while ( num_curves > 0 ) + { + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[2]; + y += args[3]; + cff_builder_add_point( builder, x, y, 0 ); + x += args[4]; + y += args[5]; + cff_builder_add_point( builder, x, y, 1 ); + args += 6; + num_curves--; + } + + /* then the final line */ + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 1 ); + args = stack; + } + break; + + case cff_op_hflex1: + { + FT_Pos start_y; + + + FT_TRACE4(( " hflex1\n" )); + + /* adding five more points: 4 control points, 1 on-curve point */ + /* -- make sure we have enough space for the start point if it */ + /* needs to be added */ + if ( cff_builder_start_point( builder, x, y ) || + check_points( builder, 6 ) ) + goto Fail; + + /* record the starting point's y position for later use */ + start_y = y; + + /* first control point */ + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, 0 ); + + /* second control point */ + x += args[2]; + y += args[3]; + cff_builder_add_point( builder, x, y, 0 ); + + /* join point; on curve, with y-value the same as the last */ + /* control point's y-value */ + x += args[4]; + cff_builder_add_point( builder, x, y, 1 ); + + /* third control point, with y-value the same as the join */ + /* point's y-value */ + x += args[5]; + cff_builder_add_point( builder, x, y, 0 ); + + /* fourth control point */ + x += args[6]; + y += args[7]; + cff_builder_add_point( builder, x, y, 0 ); + + /* ending point, with y-value the same as the start */ + x += args[8]; + y = start_y; + cff_builder_add_point( builder, x, y, 1 ); + + args = stack; + break; + } + + case cff_op_hflex: + { + FT_Pos start_y; + + + FT_TRACE4(( " hflex\n" )); + + /* adding six more points; 4 control points, 2 on-curve points */ + if ( cff_builder_start_point( builder, x, y ) || + check_points( builder, 6 ) ) + goto Fail; + + /* record the starting point's y-position for later use */ + start_y = y; + + /* first control point */ + x += args[0]; + cff_builder_add_point( builder, x, y, 0 ); + + /* second control point */ + x += args[1]; + y += args[2]; + cff_builder_add_point( builder, x, y, 0 ); + + /* join point; on curve, with y-value the same as the last */ + /* control point's y-value */ + x += args[3]; + cff_builder_add_point( builder, x, y, 1 ); + + /* third control point, with y-value the same as the join */ + /* point's y-value */ + x += args[4]; + cff_builder_add_point( builder, x, y, 0 ); + + /* fourth control point */ + x += args[5]; + y = start_y; + cff_builder_add_point( builder, x, y, 0 ); + + /* ending point, with y-value the same as the start point's */ + /* y-value -- we don't add this point, though */ + x += args[6]; + cff_builder_add_point( builder, x, y, 1 ); + + args = stack; + break; + } + + case cff_op_flex1: + { + FT_Pos start_x, start_y; /* record start x, y values for */ + /* alter use */ + FT_Fixed dx = 0, dy = 0; /* used in horizontal/vertical */ + /* algorithm below */ + FT_Int horizontal, count; + FT_Fixed* temp; + + + FT_TRACE4(( " flex1\n" )); + + /* adding six more points; 4 control points, 2 on-curve points */ + if ( cff_builder_start_point( builder, x, y ) || + check_points( builder, 6 ) ) + goto Fail; + + /* record the starting point's x, y position for later use */ + start_x = x; + start_y = y; + + /* XXX: figure out whether this is supposed to be a horizontal */ + /* or vertical flex; the Type 2 specification is vague... */ + + temp = args; + + /* grab up to the last argument */ + for ( count = 5; count > 0; count-- ) + { + dx += temp[0]; + dy += temp[1]; + temp += 2; + } + + if ( dx < 0 ) + dx = -dx; + if ( dy < 0 ) + dy = -dy; + + /* strange test, but here it is... */ + horizontal = ( dx > dy ); + + for ( count = 5; count > 0; count-- ) + { + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, + (FT_Bool)( count == 3 ) ); + args += 2; + } + + /* is last operand an x- or y-delta? */ + if ( horizontal ) + { + x += args[0]; + y = start_y; + } + else + { + x = start_x; + y += args[0]; + } + + cff_builder_add_point( builder, x, y, 1 ); + + args = stack; + break; + } + + case cff_op_flex: + { + FT_UInt count; + + + FT_TRACE4(( " flex\n" )); + + if ( cff_builder_start_point( builder, x, y ) || + check_points( builder, 6 ) ) + goto Fail; + + for ( count = 6; count > 0; count-- ) + { + x += args[0]; + y += args[1]; + cff_builder_add_point( builder, x, y, + (FT_Bool)( count == 4 || count == 1 ) ); + args += 2; + } + + args = stack; + } + break; + + case cff_op_seac: + FT_TRACE4(( " seac\n" )); + + error = cff_operator_seac( decoder, + args[0], args[1], args[2], + (FT_Int)( args[3] >> 16 ), + (FT_Int)( args[4] >> 16 ) ); + + /* add current outline to the glyph slot */ + FT_GlyphLoader_Add( builder->loader ); + + /* return now! */ + FT_TRACE4(( "\n" )); + return error; + + case cff_op_endchar: + FT_TRACE4(( " endchar\n" )); + + /* We are going to emulate the seac operator. */ + if ( num_args >= 4 ) + { + /* Save glyph width so that the subglyphs don't overwrite it. */ + FT_Pos glyph_width = decoder->glyph_width; + + + error = cff_operator_seac( decoder, + 0L, args[-4], args[-3], + (FT_Int)( args[-2] >> 16 ), + (FT_Int)( args[-1] >> 16 ) ); + + decoder->glyph_width = glyph_width; + } + else + { + if ( !error ) + error = CFF_Err_Ok; + + cff_builder_close_contour( builder ); + + /* close hints recording session */ + if ( hinter ) + { + if ( hinter->close( hinter->hints, + builder->current->n_points ) ) + goto Syntax_Error; + + /* apply hints to the loaded glyph outline now */ + hinter->apply( hinter->hints, + builder->current, + (PSH_Globals)builder->hints_globals, + decoder->hint_mode ); + } + + /* add current outline to the glyph slot */ + FT_GlyphLoader_Add( builder->loader ); + } + + /* return now! */ + FT_TRACE4(( "\n" )); + return error; + + case cff_op_abs: + FT_TRACE4(( " abs\n" )); + + if ( args[0] < 0 ) + args[0] = -args[0]; + args++; + break; + + case cff_op_add: + FT_TRACE4(( " add\n" )); + + args[0] += args[1]; + args++; + break; + + case cff_op_sub: + FT_TRACE4(( " sub\n" )); + + args[0] -= args[1]; + args++; + break; + + case cff_op_div: + FT_TRACE4(( " div\n" )); + + args[0] = FT_DivFix( args[0], args[1] ); + args++; + break; + + case cff_op_neg: + FT_TRACE4(( " neg\n" )); + + args[0] = -args[0]; + args++; + break; + + case cff_op_random: + { + FT_Fixed Rand; + + + FT_TRACE4(( " rand\n" )); + + Rand = seed; + if ( Rand >= 0x8000L ) + Rand++; + + args[0] = Rand; + seed = FT_MulFix( seed, 0x10000L - seed ); + if ( seed == 0 ) + seed += 0x2873; + args++; + } + break; + + case cff_op_mul: + FT_TRACE4(( " mul\n" )); + + args[0] = FT_MulFix( args[0], args[1] ); + args++; + break; + + case cff_op_sqrt: + FT_TRACE4(( " sqrt\n" )); + + if ( args[0] > 0 ) + { + FT_Int count = 9; + FT_Fixed root = args[0]; + FT_Fixed new_root; + + + for (;;) + { + new_root = ( root + FT_DivFix( args[0], root ) + 1 ) >> 1; + if ( new_root == root || count <= 0 ) + break; + root = new_root; + } + args[0] = new_root; + } + else + args[0] = 0; + args++; + break; + + case cff_op_drop: + /* nothing */ + FT_TRACE4(( " drop\n" )); + + break; + + case cff_op_exch: + { + FT_Fixed tmp; + + + FT_TRACE4(( " exch\n" )); + + tmp = args[0]; + args[0] = args[1]; + args[1] = tmp; + args += 2; + } + break; + + case cff_op_index: + { + FT_Int idx = (FT_Int)( args[0] >> 16 ); + + + FT_TRACE4(( " index\n" )); + + if ( idx < 0 ) + idx = 0; + else if ( idx > num_args - 2 ) + idx = num_args - 2; + args[0] = args[-( idx + 1 )]; + args++; + } + break; + + case cff_op_roll: + { + FT_Int count = (FT_Int)( args[0] >> 16 ); + FT_Int idx = (FT_Int)( args[1] >> 16 ); + + + FT_TRACE4(( " roll\n" )); + + if ( count <= 0 ) + count = 1; + + args -= count; + if ( args < stack ) + goto Stack_Underflow; + + if ( idx >= 0 ) + { + while ( idx > 0 ) + { + FT_Fixed tmp = args[count - 1]; + FT_Int i; + + + for ( i = count - 2; i >= 0; i-- ) + args[i + 1] = args[i]; + args[0] = tmp; + idx--; + } + } + else + { + while ( idx < 0 ) + { + FT_Fixed tmp = args[0]; + FT_Int i; + + + for ( i = 0; i < count - 1; i++ ) + args[i] = args[i + 1]; + args[count - 1] = tmp; + idx++; + } + } + args += count; + } + break; + + case cff_op_dup: + FT_TRACE4(( " dup\n" )); + + args[1] = args[0]; + args += 2; + break; + + case cff_op_put: + { + FT_Fixed val = args[0]; + FT_Int idx = (FT_Int)( args[1] >> 16 ); + + + FT_TRACE4(( " put\n" )); + + if ( idx >= 0 && idx < CFF_MAX_TRANS_ELEMENTS ) + decoder->buildchar[idx] = val; + } + break; + + case cff_op_get: + { + FT_Int idx = (FT_Int)( args[0] >> 16 ); + FT_Fixed val = 0; + + + FT_TRACE4(( " get\n" )); + + if ( idx >= 0 && idx < CFF_MAX_TRANS_ELEMENTS ) + val = decoder->buildchar[idx]; + + args[0] = val; + args++; + } + break; + + case cff_op_store: + FT_TRACE4(( " store\n")); + + goto Unimplemented; + + case cff_op_load: + FT_TRACE4(( " load\n" )); + + goto Unimplemented; + + case cff_op_dotsection: + /* this operator is deprecated and ignored by the parser */ + FT_TRACE4(( " dotsection\n" )); + break; + + case cff_op_closepath: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " closepath (invalid op)\n" )); + + args = stack; + break; + + case cff_op_hsbw: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " hsbw (invalid op)\n" )); + + decoder->glyph_width = decoder->nominal_width + ( args[1] >> 16 ); + + decoder->builder.left_bearing.x = args[0]; + decoder->builder.left_bearing.y = 0; + + x = decoder->builder.pos_x + args[0]; + y = decoder->builder.pos_y; + args = stack; + break; + + case cff_op_sbw: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " sbw (invalid op)\n" )); + + decoder->glyph_width = decoder->nominal_width + ( args[2] >> 16 ); + + decoder->builder.left_bearing.x = args[0]; + decoder->builder.left_bearing.y = args[1]; + + x = decoder->builder.pos_x + args[0]; + y = decoder->builder.pos_y + args[1]; + args = stack; + break; + + case cff_op_setcurrentpoint: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " setcurrentpoint (invalid op)\n" )); + + x = decoder->builder.pos_x + args[0]; + y = decoder->builder.pos_y + args[1]; + args = stack; + break; + + case cff_op_callothersubr: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " callothersubr (invalid op)\n" )); + + /* subsequent `pop' operands should add the arguments, */ + /* this is the implementation described for `unknown' other */ + /* subroutines in the Type1 spec. */ + /* */ + /* XXX Fix return arguments (see discussion below). */ + args -= 2 + ( args[-2] >> 16 ); + if ( args < stack ) + goto Stack_Underflow; + break; + + case cff_op_pop: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " pop (invalid op)\n" )); + + /* XXX Increasing `args' is wrong: After a certain number of */ + /* `pop's we get a stack overflow. Reason for doing it is */ + /* code like this (actually found in a CFF font): */ + /* */ + /* 17 1 3 callothersubr */ + /* pop */ + /* callsubr */ + /* */ + /* Since we handle `callothersubr' as a no-op, and */ + /* `callsubr' needs at least one argument, `pop' can't be a */ + /* no-op too as it basically should be. */ + /* */ + /* The right solution would be to provide real support for */ + /* `callothersubr' as done in `t1decode.c', however, given */ + /* the fact that CFF fonts with `pop' are invalid, it is */ + /* questionable whether it is worth the time. */ + args++; + break; + + case cff_op_and: + { + FT_Fixed cond = args[0] && args[1]; + + + FT_TRACE4(( " and\n" )); + + args[0] = cond ? 0x10000L : 0; + args++; + } + break; + + case cff_op_or: + { + FT_Fixed cond = args[0] || args[1]; + + + FT_TRACE4(( " or\n" )); + + args[0] = cond ? 0x10000L : 0; + args++; + } + break; + + case cff_op_eq: + { + FT_Fixed cond = !args[0]; + + + FT_TRACE4(( " eq\n" )); + + args[0] = cond ? 0x10000L : 0; + args++; + } + break; + + case cff_op_ifelse: + { + FT_Fixed cond = ( args[2] <= args[3] ); + + + FT_TRACE4(( " ifelse\n" )); + + if ( !cond ) + args[0] = args[1]; + args++; + } + break; + + case cff_op_callsubr: + { + FT_UInt idx = (FT_UInt)( ( args[0] >> 16 ) + + decoder->locals_bias ); + + + FT_TRACE4(( " callsubr(%d)\n", idx )); + + if ( idx >= decoder->num_locals ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " invalid local subr index\n" )); + goto Syntax_Error; + } + + if ( zone - decoder->zones >= CFF_MAX_SUBRS_CALLS ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " too many nested subrs\n" )); + goto Syntax_Error; + } + + zone->cursor = ip; /* save current instruction pointer */ + + zone++; + zone->base = decoder->locals[idx]; + zone->limit = decoder->locals[idx + 1]; + zone->cursor = zone->base; + + if ( !zone->base || zone->limit == zone->base ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " invoking empty subrs\n" )); + goto Syntax_Error; + } + + decoder->zone = zone; + ip = zone->base; + limit = zone->limit; + } + break; + + case cff_op_callgsubr: + { + FT_UInt idx = (FT_UInt)( ( args[0] >> 16 ) + + decoder->globals_bias ); + + + FT_TRACE4(( " callgsubr(%d)\n", idx )); + + if ( idx >= decoder->num_globals ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " invalid global subr index\n" )); + goto Syntax_Error; + } + + if ( zone - decoder->zones >= CFF_MAX_SUBRS_CALLS ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " too many nested subrs\n" )); + goto Syntax_Error; + } + + zone->cursor = ip; /* save current instruction pointer */ + + zone++; + zone->base = decoder->globals[idx]; + zone->limit = decoder->globals[idx + 1]; + zone->cursor = zone->base; + + if ( !zone->base || zone->limit == zone->base ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " invoking empty subrs\n" )); + goto Syntax_Error; + } + + decoder->zone = zone; + ip = zone->base; + limit = zone->limit; + } + break; + + case cff_op_return: + FT_TRACE4(( " return\n" )); + + if ( decoder->zone <= decoder->zones ) + { + FT_ERROR(( "cff_decoder_parse_charstrings:" + " unexpected return\n" )); + goto Syntax_Error; + } + + decoder->zone--; + zone = decoder->zone; + ip = zone->cursor; + limit = zone->limit; + break; + + default: + Unimplemented: + FT_ERROR(( "Unimplemented opcode: %d", ip[-1] )); + + if ( ip[-1] == 12 ) + FT_ERROR(( " %d", ip[0] )); + FT_ERROR(( "\n" )); + + return CFF_Err_Unimplemented_Feature; + } + + decoder->top = args; + + if ( decoder->top - stack >= CFF_MAX_OPERANDS ) + goto Stack_Overflow; + + } /* general operator processing */ + + } /* while ip < limit */ + + FT_TRACE4(( "..end..\n\n" )); + + Fail: + return error; + + Syntax_Error: + FT_TRACE4(( "cff_decoder_parse_charstrings: syntax error\n" )); + return CFF_Err_Invalid_File_Format; + + Stack_Underflow: + FT_TRACE4(( "cff_decoder_parse_charstrings: stack underflow\n" )); + return CFF_Err_Too_Few_Arguments; + + Stack_Overflow: + FT_TRACE4(( "cff_decoder_parse_charstrings: stack overflow\n" )); + return CFF_Err_Stack_Overflow; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********** *********/ + /********** *********/ + /********** COMPUTE THE MAXIMUM ADVANCE WIDTH *********/ + /********** *********/ + /********** The following code is in charge of computing *********/ + /********** the maximum advance width of the font. It *********/ + /********** quickly processes each glyph charstring to *********/ + /********** extract the value from either a `sbw' or `seac' *********/ + /********** operator. *********/ + /********** *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#if 0 /* unused until we support pure CFF fonts */ + + + FT_LOCAL_DEF( FT_Error ) + cff_compute_max_advance( TT_Face face, + FT_Int* max_advance ) + { + FT_Error error = CFF_Err_Ok; + CFF_Decoder decoder; + FT_Int glyph_index; + CFF_Font cff = (CFF_Font)face->other; + + + *max_advance = 0; + + /* Initialize load decoder */ + cff_decoder_init( &decoder, face, 0, 0, 0, 0 ); + + decoder.builder.metrics_only = 1; + decoder.builder.load_points = 0; + + /* For each glyph, parse the glyph charstring and extract */ + /* the advance width. */ + for ( glyph_index = 0; glyph_index < face->root.num_glyphs; + glyph_index++ ) + { + FT_Byte* charstring; + FT_ULong charstring_len; + + + /* now get load the unscaled outline */ + error = cff_get_glyph_data( face, glyph_index, + &charstring, &charstring_len ); + if ( !error ) + { + error = cff_decoder_prepare( &decoder, size, glyph_index ); + if ( !error ) + error = cff_decoder_parse_charstrings( &decoder, + charstring, + charstring_len ); + + cff_free_glyph_data( face, &charstring, &charstring_len ); + } + + /* ignore the error if one has occurred -- skip to next glyph */ + error = CFF_Err_Ok; + } + + *max_advance = decoder.builder.advance.x; + + return CFF_Err_Ok; + } + + +#endif /* 0 */ + + + FT_LOCAL_DEF( FT_Error ) + cff_slot_load( CFF_GlyphSlot glyph, + CFF_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FT_Error error; + CFF_Decoder decoder; + TT_Face face = (TT_Face)glyph->root.face; + FT_Bool hinting, force_scaling; + CFF_Font cff = (CFF_Font)face->extra.data; + + FT_Matrix font_matrix; + FT_Vector font_offset; + + + force_scaling = FALSE; + + /* in a CID-keyed font, consider `glyph_index' as a CID and map */ + /* it immediately to the real glyph_index -- if it isn't a */ + /* subsetted font, glyph_indices and CIDs are identical, though */ + if ( cff->top_font.font_dict.cid_registry != 0xFFFFU && + cff->charset.cids ) + { + /* don't handle CID 0 (.notdef) which is directly mapped to GID 0 */ + if ( glyph_index != 0 ) + { + glyph_index = cff_charset_cid_to_gindex( &cff->charset, + glyph_index ); + if ( glyph_index == 0 ) + return CFF_Err_Invalid_Argument; + } + } + else if ( glyph_index >= cff->num_glyphs ) + return CFF_Err_Invalid_Argument; + + if ( load_flags & FT_LOAD_NO_RECURSE ) + load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; + + glyph->x_scale = 0x10000L; + glyph->y_scale = 0x10000L; + if ( size ) + { + glyph->x_scale = size->root.metrics.x_scale; + glyph->y_scale = size->root.metrics.y_scale; + } + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + /* try to load embedded bitmap if any */ + /* */ + /* XXX: The convention should be emphasized in */ + /* the documents because it can be confusing. */ + if ( size ) + { + CFF_Face cff_face = (CFF_Face)size->root.face; + SFNT_Service sfnt = (SFNT_Service)cff_face->sfnt; + FT_Stream stream = cff_face->root.stream; + + + if ( size->strike_index != 0xFFFFFFFFUL && + sfnt->load_eblc && + ( load_flags & FT_LOAD_NO_BITMAP ) == 0 ) + { + TT_SBit_MetricsRec metrics; + + + error = sfnt->load_sbit_image( face, + size->strike_index, + glyph_index, + (FT_Int)load_flags, + stream, + &glyph->root.bitmap, + &metrics ); + + if ( !error ) + { + glyph->root.outline.n_points = 0; + glyph->root.outline.n_contours = 0; + + glyph->root.metrics.width = (FT_Pos)metrics.width << 6; + glyph->root.metrics.height = (FT_Pos)metrics.height << 6; + + glyph->root.metrics.horiBearingX = (FT_Pos)metrics.horiBearingX << 6; + glyph->root.metrics.horiBearingY = (FT_Pos)metrics.horiBearingY << 6; + glyph->root.metrics.horiAdvance = (FT_Pos)metrics.horiAdvance << 6; + + glyph->root.metrics.vertBearingX = (FT_Pos)metrics.vertBearingX << 6; + glyph->root.metrics.vertBearingY = (FT_Pos)metrics.vertBearingY << 6; + glyph->root.metrics.vertAdvance = (FT_Pos)metrics.vertAdvance << 6; + + glyph->root.format = FT_GLYPH_FORMAT_BITMAP; + + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + glyph->root.bitmap_left = metrics.vertBearingX; + glyph->root.bitmap_top = metrics.vertBearingY; + } + else + { + glyph->root.bitmap_left = metrics.horiBearingX; + glyph->root.bitmap_top = metrics.horiBearingY; + } + return error; + } + } + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + /* return immediately if we only want the embedded bitmaps */ + if ( load_flags & FT_LOAD_SBITS_ONLY ) + return CFF_Err_Invalid_Argument; + + /* if we have a CID subfont, use its matrix (which has already */ + /* been multiplied with the root matrix) */ + + /* this scaling is only relevant if the PS hinter isn't active */ + if ( cff->num_subfonts ) + { + FT_ULong top_upm, sub_upm; + FT_Byte fd_index = cff_fd_select_get( &cff->fd_select, + glyph_index ); + + if ( fd_index >= cff->num_subfonts ) + fd_index = (FT_Byte)( cff->num_subfonts - 1 ); + + top_upm = cff->top_font.font_dict.units_per_em; + sub_upm = cff->subfonts[fd_index]->font_dict.units_per_em; + + + font_matrix = cff->subfonts[fd_index]->font_dict.font_matrix; + font_offset = cff->subfonts[fd_index]->font_dict.font_offset; + + if ( top_upm != sub_upm ) + { + glyph->x_scale = FT_MulDiv( glyph->x_scale, top_upm, sub_upm ); + glyph->y_scale = FT_MulDiv( glyph->y_scale, top_upm, sub_upm ); + + force_scaling = TRUE; + } + } + else + { + font_matrix = cff->top_font.font_dict.font_matrix; + font_offset = cff->top_font.font_dict.font_offset; + } + + glyph->root.outline.n_points = 0; + glyph->root.outline.n_contours = 0; + + hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 && + ( load_flags & FT_LOAD_NO_HINTING ) == 0 ); + + glyph->root.format = FT_GLYPH_FORMAT_OUTLINE; /* by default */ + + { + FT_Byte* charstring; + FT_ULong charstring_len; + + + cff_decoder_init( &decoder, face, size, glyph, hinting, + FT_LOAD_TARGET_MODE( load_flags ) ); + + if ( load_flags & FT_LOAD_ADVANCE_ONLY ) + decoder.width_only = TRUE; + + decoder.builder.no_recurse = + (FT_Bool)( load_flags & FT_LOAD_NO_RECURSE ); + + /* now load the unscaled outline */ + error = cff_get_glyph_data( face, glyph_index, + &charstring, &charstring_len ); + if ( error ) + goto Glyph_Build_Finished; + + error = cff_decoder_prepare( &decoder, size, glyph_index ); + if ( error ) + goto Glyph_Build_Finished; + + error = cff_decoder_parse_charstrings( &decoder, + charstring, + charstring_len ); + + cff_free_glyph_data( face, &charstring, charstring_len ); + + if ( error ) + goto Glyph_Build_Finished; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* Control data and length may not be available for incremental */ + /* fonts. */ + if ( face->root.internal->incremental_interface ) + { + glyph->root.control_data = 0; + glyph->root.control_len = 0; + } + else +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + /* We set control_data and control_len if charstrings is loaded. */ + /* See how charstring loads at cff_index_access_element() in */ + /* cffload.c. */ + { + CFF_Index csindex = &cff->charstrings_index; + + + if ( csindex->offsets ) + { + glyph->root.control_data = csindex->bytes + + csindex->offsets[glyph_index] - 1; + glyph->root.control_len = charstring_len; + } + } + + Glyph_Build_Finished: + /* save new glyph tables, if no error */ + if ( !error ) + cff_builder_done( &decoder.builder ); + /* XXX: anything to do for broken glyph entry? */ + } + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + /* Incremental fonts can optionally override the metrics. */ + if ( !error && + face->root.internal->incremental_interface && + face->root.internal->incremental_interface->funcs->get_glyph_metrics ) + { + FT_Incremental_MetricsRec metrics; + + + metrics.bearing_x = decoder.builder.left_bearing.x; + metrics.bearing_y = 0; + metrics.advance = decoder.builder.advance.x; + metrics.advance_v = decoder.builder.advance.y; + + error = face->root.internal->incremental_interface->funcs->get_glyph_metrics( + face->root.internal->incremental_interface->object, + glyph_index, FALSE, &metrics ); + + decoder.builder.left_bearing.x = metrics.bearing_x; + decoder.builder.advance.x = metrics.advance; + decoder.builder.advance.y = metrics.advance_v; + } + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + if ( !error ) + { + /* Now, set the metrics -- this is rather simple, as */ + /* the left side bearing is the xMin, and the top side */ + /* bearing the yMax. */ + + /* For composite glyphs, return only left side bearing and */ + /* advance width. */ + if ( load_flags & FT_LOAD_NO_RECURSE ) + { + FT_Slot_Internal internal = glyph->root.internal; + + + glyph->root.metrics.horiBearingX = decoder.builder.left_bearing.x; + glyph->root.metrics.horiAdvance = decoder.glyph_width; + internal->glyph_matrix = font_matrix; + internal->glyph_delta = font_offset; + internal->glyph_transformed = 1; + } + else + { + FT_BBox cbox; + FT_Glyph_Metrics* metrics = &glyph->root.metrics; + FT_Vector advance; + FT_Bool has_vertical_info; + + + /* copy the _unscaled_ advance width */ + metrics->horiAdvance = decoder.glyph_width; + glyph->root.linearHoriAdvance = decoder.glyph_width; + glyph->root.internal->glyph_transformed = 0; + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + has_vertical_info = FT_BOOL( face->vertical_info && + face->vertical.number_Of_VMetrics > 0 && + face->vertical.long_metrics ); +#else + has_vertical_info = FT_BOOL( face->vertical_info && + face->vertical.number_Of_VMetrics > 0 ); +#endif + + /* get the vertical metrics from the vtmx table if we have one */ + if ( has_vertical_info ) + { + FT_Short vertBearingY = 0; + FT_UShort vertAdvance = 0; + + + ( (SFNT_Service)face->sfnt )->get_metrics( face, 1, + glyph_index, + &vertBearingY, + &vertAdvance ); + metrics->vertBearingY = vertBearingY; + metrics->vertAdvance = vertAdvance; + } + else + { + /* make up vertical ones */ + if ( face->os2.version != 0xFFFFU ) + metrics->vertAdvance = (FT_Pos)( face->os2.sTypoAscender - + face->os2.sTypoDescender ); + else + metrics->vertAdvance = (FT_Pos)( face->horizontal.Ascender - + face->horizontal.Descender ); + } + + glyph->root.linearVertAdvance = metrics->vertAdvance; + + glyph->root.format = FT_GLYPH_FORMAT_OUTLINE; + + glyph->root.outline.flags = 0; + if ( size && size->root.metrics.y_ppem < 24 ) + glyph->root.outline.flags |= FT_OUTLINE_HIGH_PRECISION; + + glyph->root.outline.flags |= FT_OUTLINE_REVERSE_FILL; + + if ( !( font_matrix.xx == 0x10000L && + font_matrix.yy == 0x10000L && + font_matrix.xy == 0 && + font_matrix.yx == 0 ) ) + FT_Outline_Transform( &glyph->root.outline, &font_matrix ); + + if ( !( font_offset.x == 0 && + font_offset.y == 0 ) ) + FT_Outline_Translate( &glyph->root.outline, + font_offset.x, font_offset.y ); + + advance.x = metrics->horiAdvance; + advance.y = 0; + FT_Vector_Transform( &advance, &font_matrix ); + metrics->horiAdvance = advance.x + font_offset.x; + + advance.x = 0; + advance.y = metrics->vertAdvance; + FT_Vector_Transform( &advance, &font_matrix ); + metrics->vertAdvance = advance.y + font_offset.y; + + if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 || force_scaling ) + { + /* scale the outline and the metrics */ + FT_Int n; + FT_Outline* cur = &glyph->root.outline; + FT_Vector* vec = cur->points; + FT_Fixed x_scale = glyph->x_scale; + FT_Fixed y_scale = glyph->y_scale; + + + /* First of all, scale the points */ + if ( !hinting || !decoder.builder.hints_funcs ) + for ( n = cur->n_points; n > 0; n--, vec++ ) + { + vec->x = FT_MulFix( vec->x, x_scale ); + vec->y = FT_MulFix( vec->y, y_scale ); + } + + /* Then scale the metrics */ + metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale ); + metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale ); + } + + /* compute the other metrics */ + FT_Outline_Get_CBox( &glyph->root.outline, &cbox ); + + metrics->width = cbox.xMax - cbox.xMin; + metrics->height = cbox.yMax - cbox.yMin; + + metrics->horiBearingX = cbox.xMin; + metrics->horiBearingY = cbox.yMax; + + if ( has_vertical_info ) + metrics->vertBearingX = metrics->horiBearingX - + metrics->horiAdvance / 2; + else + { + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + ft_synthesize_vertical_metrics( metrics, + metrics->vertAdvance ); + } + } + } + + return error; + } + + +/* END */ diff --git a/src/cff/cffgload.h b/src/cff/cffgload.h new file mode 100644 index 0000000..38937be --- /dev/null +++ b/src/cff/cffgload.h @@ -0,0 +1,201 @@ +/***************************************************************************/ +/* */ +/* cffgload.h */ +/* */ +/* OpenType Glyph Loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFGLOAD_H__ +#define __CFFGLOAD_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include "cffobjs.h" + + +FT_BEGIN_HEADER + + +#define CFF_MAX_OPERANDS 48 +#define CFF_MAX_SUBRS_CALLS 32 +#define CFF_MAX_TRANS_ELEMENTS 32 + + + /*************************************************************************/ + /* */ + /* <Structure> */ + /* CFF_Builder */ + /* */ + /* <Description> */ + /* A structure used during glyph loading to store its outline. */ + /* */ + /* <Fields> */ + /* memory :: The current memory object. */ + /* */ + /* face :: The current face object. */ + /* */ + /* glyph :: The current glyph slot. */ + /* */ + /* loader :: The current glyph loader. */ + /* */ + /* base :: The base glyph outline. */ + /* */ + /* current :: The current glyph outline. */ + /* */ + /* pos_x :: The horizontal translation (if composite glyph). */ + /* */ + /* pos_y :: The vertical translation (if composite glyph). */ + /* */ + /* left_bearing :: The left side bearing point. */ + /* */ + /* advance :: The horizontal advance vector. */ + /* */ + /* bbox :: Unused. */ + /* */ + /* path_begun :: A flag which indicates that a new path has begun. */ + /* */ + /* load_points :: If this flag is not set, no points are loaded. */ + /* */ + /* no_recurse :: Set but not used. */ + /* */ + /* metrics_only :: A boolean indicating that we only want to compute */ + /* the metrics of a given glyph, not load all of its */ + /* points. */ + /* */ + /* hints_funcs :: Auxiliary pointer for hinting. */ + /* */ + /* hints_globals :: Auxiliary pointer for hinting. */ + /* */ + typedef struct CFF_Builder_ + { + FT_Memory memory; + TT_Face face; + CFF_GlyphSlot glyph; + FT_GlyphLoader loader; + FT_Outline* base; + FT_Outline* current; + + FT_Pos pos_x; + FT_Pos pos_y; + + FT_Vector left_bearing; + FT_Vector advance; + + FT_BBox bbox; /* bounding box */ + FT_Bool path_begun; + FT_Bool load_points; + FT_Bool no_recurse; + + FT_Bool metrics_only; + + void* hints_funcs; /* hinter-specific */ + void* hints_globals; /* hinter-specific */ + + } CFF_Builder; + + + /* execution context charstring zone */ + + typedef struct CFF_Decoder_Zone_ + { + FT_Byte* base; + FT_Byte* limit; + FT_Byte* cursor; + + } CFF_Decoder_Zone; + + + typedef struct CFF_Decoder_ + { + CFF_Builder builder; + CFF_Font cff; + + FT_Fixed stack[CFF_MAX_OPERANDS + 1]; + FT_Fixed* top; + + CFF_Decoder_Zone zones[CFF_MAX_SUBRS_CALLS + 1]; + CFF_Decoder_Zone* zone; + + FT_Int flex_state; + FT_Int num_flex_vectors; + FT_Vector flex_vectors[7]; + + FT_Pos glyph_width; + FT_Pos nominal_width; + + FT_Bool read_width; + FT_Bool width_only; + FT_Int num_hints; + FT_Fixed buildchar[CFF_MAX_TRANS_ELEMENTS]; + + FT_UInt num_locals; + FT_UInt num_globals; + + FT_Int locals_bias; + FT_Int globals_bias; + + FT_Byte** locals; + FT_Byte** globals; + + FT_Byte** glyph_names; /* for pure CFF fonts only */ + FT_UInt num_glyphs; /* number of glyphs in font */ + + FT_Render_Mode hint_mode; + + FT_Bool seac; + + } CFF_Decoder; + + + FT_LOCAL( void ) + cff_decoder_init( CFF_Decoder* decoder, + TT_Face face, + CFF_Size size, + CFF_GlyphSlot slot, + FT_Bool hinting, + FT_Render_Mode hint_mode ); + + FT_LOCAL( FT_Error ) + cff_decoder_prepare( CFF_Decoder* decoder, + CFF_Size size, + FT_UInt glyph_index ); + +#if 0 /* unused until we support pure CFF fonts */ + + /* Compute the maximum advance width of a font through quick parsing */ + FT_LOCAL( FT_Error ) + cff_compute_max_advance( TT_Face face, + FT_Int* max_advance ); + +#endif /* 0 */ + + FT_LOCAL( FT_Error ) + cff_decoder_parse_charstrings( CFF_Decoder* decoder, + FT_Byte* charstring_base, + FT_ULong charstring_len ); + + FT_LOCAL( FT_Error ) + cff_slot_load( CFF_GlyphSlot glyph, + CFF_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + +FT_END_HEADER + +#endif /* __CFFGLOAD_H__ */ + + +/* END */ diff --git a/src/cff/cffload.c b/src/cff/cffload.c new file mode 100644 index 0000000..2be6ba0 --- /dev/null +++ b/src/cff/cffload.c @@ -0,0 +1,1666 @@ +/***************************************************************************/ +/* */ +/* cffload.c */ +/* */ +/* OpenType and CFF data/program tables loader (body). */ +/* */ +/* Copyright 1996-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include FT_TYPE1_TABLES_H + +#include "cffload.h" +#include "cffparse.h" + +#include "cfferrs.h" + + +#if 1 + + static const FT_UShort cff_isoadobe_charset[229] = + { + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + 16, 17, 18, 19, 20, 21, 22, 23, + 24, 25, 26, 27, 28, 29, 30, 31, + 32, 33, 34, 35, 36, 37, 38, 39, + 40, 41, 42, 43, 44, 45, 46, 47, + 48, 49, 50, 51, 52, 53, 54, 55, + 56, 57, 58, 59, 60, 61, 62, 63, + 64, 65, 66, 67, 68, 69, 70, 71, + 72, 73, 74, 75, 76, 77, 78, 79, + 80, 81, 82, 83, 84, 85, 86, 87, + 88, 89, 90, 91, 92, 93, 94, 95, + 96, 97, 98, 99, 100, 101, 102, 103, + 104, 105, 106, 107, 108, 109, 110, 111, + 112, 113, 114, 115, 116, 117, 118, 119, + 120, 121, 122, 123, 124, 125, 126, 127, + 128, 129, 130, 131, 132, 133, 134, 135, + 136, 137, 138, 139, 140, 141, 142, 143, + 144, 145, 146, 147, 148, 149, 150, 151, + 152, 153, 154, 155, 156, 157, 158, 159, + 160, 161, 162, 163, 164, 165, 166, 167, + 168, 169, 170, 171, 172, 173, 174, 175, + 176, 177, 178, 179, 180, 181, 182, 183, + 184, 185, 186, 187, 188, 189, 190, 191, + 192, 193, 194, 195, 196, 197, 198, 199, + 200, 201, 202, 203, 204, 205, 206, 207, + 208, 209, 210, 211, 212, 213, 214, 215, + 216, 217, 218, 219, 220, 221, 222, 223, + 224, 225, 226, 227, 228 + }; + + static const FT_UShort cff_expert_charset[166] = + { + 0, 1, 229, 230, 231, 232, 233, 234, + 235, 236, 237, 238, 13, 14, 15, 99, + 239, 240, 241, 242, 243, 244, 245, 246, + 247, 248, 27, 28, 249, 250, 251, 252, + 253, 254, 255, 256, 257, 258, 259, 260, + 261, 262, 263, 264, 265, 266, 109, 110, + 267, 268, 269, 270, 271, 272, 273, 274, + 275, 276, 277, 278, 279, 280, 281, 282, + 283, 284, 285, 286, 287, 288, 289, 290, + 291, 292, 293, 294, 295, 296, 297, 298, + 299, 300, 301, 302, 303, 304, 305, 306, + 307, 308, 309, 310, 311, 312, 313, 314, + 315, 316, 317, 318, 158, 155, 163, 319, + 320, 321, 322, 323, 324, 325, 326, 150, + 164, 169, 327, 328, 329, 330, 331, 332, + 333, 334, 335, 336, 337, 338, 339, 340, + 341, 342, 343, 344, 345, 346, 347, 348, + 349, 350, 351, 352, 353, 354, 355, 356, + 357, 358, 359, 360, 361, 362, 363, 364, + 365, 366, 367, 368, 369, 370, 371, 372, + 373, 374, 375, 376, 377, 378 + }; + + static const FT_UShort cff_expertsubset_charset[87] = + { + 0, 1, 231, 232, 235, 236, 237, 238, + 13, 14, 15, 99, 239, 240, 241, 242, + 243, 244, 245, 246, 247, 248, 27, 28, + 249, 250, 251, 253, 254, 255, 256, 257, + 258, 259, 260, 261, 262, 263, 264, 265, + 266, 109, 110, 267, 268, 269, 270, 272, + 300, 301, 302, 305, 314, 315, 158, 155, + 163, 320, 321, 322, 323, 324, 325, 326, + 150, 164, 169, 327, 328, 329, 330, 331, + 332, 333, 334, 335, 336, 337, 338, 339, + 340, 341, 342, 343, 344, 345, 346 + }; + + static const FT_UShort cff_standard_encoding[256] = + { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 2, 3, 4, 5, 6, 7, 8, + 9, 10, 11, 12, 13, 14, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, + 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 48, + 49, 50, 51, 52, 53, 54, 55, 56, + 57, 58, 59, 60, 61, 62, 63, 64, + 65, 66, 67, 68, 69, 70, 71, 72, + 73, 74, 75, 76, 77, 78, 79, 80, + 81, 82, 83, 84, 85, 86, 87, 88, + 89, 90, 91, 92, 93, 94, 95, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 96, 97, 98, 99, 100, 101, 102, + 103, 104, 105, 106, 107, 108, 109, 110, + 0, 111, 112, 113, 114, 0, 115, 116, + 117, 118, 119, 120, 121, 122, 0, 123, + 0, 124, 125, 126, 127, 128, 129, 130, + 131, 0, 132, 133, 0, 134, 135, 136, + 137, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 138, 0, 139, 0, 0, 0, 0, + 140, 141, 142, 143, 0, 0, 0, 0, + 0, 144, 0, 0, 0, 145, 0, 0, + 146, 147, 148, 149, 0, 0, 0, 0 + }; + + static const FT_UShort cff_expert_encoding[256] = + { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 1, 229, 230, 0, 231, 232, 233, 234, + 235, 236, 237, 238, 13, 14, 15, 99, + 239, 240, 241, 242, 243, 244, 245, 246, + 247, 248, 27, 28, 249, 250, 251, 252, + 0, 253, 254, 255, 256, 257, 0, 0, + 0, 258, 0, 0, 259, 260, 261, 262, + 0, 0, 263, 264, 265, 0, 266, 109, + 110, 267, 268, 269, 0, 270, 271, 272, + 273, 274, 275, 276, 277, 278, 279, 280, + 281, 282, 283, 284, 285, 286, 287, 288, + 289, 290, 291, 292, 293, 294, 295, 296, + 297, 298, 299, 300, 301, 302, 303, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 304, 305, 306, 0, 0, 307, 308, + 309, 310, 311, 0, 312, 0, 0, 312, + 0, 0, 314, 315, 0, 0, 316, 317, + 318, 0, 0, 0, 158, 155, 163, 319, + 320, 321, 322, 323, 324, 325, 0, 0, + 326, 150, 164, 169, 327, 328, 329, 330, + 331, 332, 333, 334, 335, 336, 337, 338, + 339, 340, 341, 342, 343, 344, 345, 346, + 347, 348, 349, 350, 351, 352, 353, 354, + 355, 356, 357, 358, 359, 360, 361, 362, + 363, 364, 365, 366, 367, 368, 369, 370, + 371, 372, 373, 374, 375, 376, 377, 378 + }; + +#endif /* 1 */ + + + FT_LOCAL_DEF( FT_UShort ) + cff_get_standard_encoding( FT_UInt charcode ) + { + return (FT_UShort)( charcode < 256 ? cff_standard_encoding[charcode] + : 0 ); + } + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cffload + + + /* read an offset from the index's stream current position */ + static FT_ULong + cff_index_read_offset( CFF_Index idx, + FT_Error *errorp ) + { + FT_Error error; + FT_Stream stream = idx->stream; + FT_Byte tmp[4]; + FT_ULong result = 0; + + + if ( !FT_STREAM_READ( tmp, idx->off_size ) ) + { + FT_Int nn; + + + for ( nn = 0; nn < idx->off_size; nn++ ) + result = ( result << 8 ) | tmp[nn]; + } + + *errorp = error; + return result; + } + + + static FT_Error + cff_index_init( CFF_Index idx, + FT_Stream stream, + FT_Bool load ) + { + FT_Error error; + FT_Memory memory = stream->memory; + FT_UShort count; + + + FT_MEM_ZERO( idx, sizeof ( *idx ) ); + + idx->stream = stream; + idx->start = FT_STREAM_POS(); + if ( !FT_READ_USHORT( count ) && + count > 0 ) + { + FT_Byte offsize; + FT_ULong size; + + + /* there is at least one element; read the offset size, */ + /* then access the offset table to compute the index's total size */ + if ( FT_READ_BYTE( offsize ) ) + goto Exit; + + if ( offsize < 1 || offsize > 4 ) + { + error = CFF_Err_Invalid_Table; + goto Exit; + } + + idx->count = count; + idx->off_size = offsize; + size = (FT_ULong)( count + 1 ) * offsize; + + idx->data_offset = idx->start + 3 + size; + + if ( FT_STREAM_SKIP( size - offsize ) ) + goto Exit; + + size = cff_index_read_offset( idx, &error ); + if ( error ) + goto Exit; + + if ( size == 0 ) + { + error = CFF_Err_Invalid_Table; + goto Exit; + } + + idx->data_size = --size; + + if ( load ) + { + /* load the data */ + if ( FT_FRAME_EXTRACT( size, idx->bytes ) ) + goto Exit; + } + else + { + /* skip the data */ + if ( FT_STREAM_SKIP( size ) ) + goto Exit; + } + } + + Exit: + if ( error ) + FT_FREE( idx->offsets ); + + return error; + } + + + static void + cff_index_done( CFF_Index idx ) + { + if ( idx->stream ) + { + FT_Stream stream = idx->stream; + FT_Memory memory = stream->memory; + + + if ( idx->bytes ) + FT_FRAME_RELEASE( idx->bytes ); + + FT_FREE( idx->offsets ); + FT_MEM_ZERO( idx, sizeof ( *idx ) ); + } + } + + + static FT_Error + cff_index_load_offsets( CFF_Index idx ) + { + FT_Error error = CFF_Err_Ok; + FT_Stream stream = idx->stream; + FT_Memory memory = stream->memory; + + + if ( idx->count > 0 && idx->offsets == NULL ) + { + FT_Byte offsize = idx->off_size; + FT_ULong data_size; + FT_Byte* p; + FT_Byte* p_end; + FT_ULong* poff; + + + data_size = (FT_ULong)( idx->count + 1 ) * offsize; + + if ( FT_NEW_ARRAY( idx->offsets, idx->count + 1 ) || + FT_STREAM_SEEK( idx->start + 3 ) || + FT_FRAME_ENTER( data_size ) ) + goto Exit; + + poff = idx->offsets; + p = (FT_Byte*)stream->cursor; + p_end = p + data_size; + + switch ( offsize ) + { + case 1: + for ( ; p < p_end; p++, poff++ ) + poff[0] = p[0]; + break; + + case 2: + for ( ; p < p_end; p += 2, poff++ ) + poff[0] = FT_PEEK_USHORT( p ); + break; + + case 3: + for ( ; p < p_end; p += 3, poff++ ) + poff[0] = FT_PEEK_OFF3( p ); + break; + + default: + for ( ; p < p_end; p += 4, poff++ ) + poff[0] = FT_PEEK_ULONG( p ); + } + + FT_FRAME_EXIT(); + } + + Exit: + if ( error ) + FT_FREE( idx->offsets ); + + return error; + } + + + /* Allocate a table containing pointers to an index's elements. */ + /* The `pool' argument makes this function convert the index */ + /* entries to C-style strings (this is, NULL-terminated). */ + static FT_Error + cff_index_get_pointers( CFF_Index idx, + FT_Byte*** table, + FT_Byte** pool ) + { + FT_Error error = CFF_Err_Ok; + FT_Memory memory = idx->stream->memory; + FT_Byte** t = NULL; + FT_Byte* new_bytes = NULL; + + + *table = NULL; + + if ( idx->offsets == NULL ) + { + error = cff_index_load_offsets( idx ); + if ( error ) + goto Exit; + } + + if ( idx->count > 0 && + !FT_NEW_ARRAY( t, idx->count + 1 ) && + ( !pool || !FT_ALLOC( new_bytes, + idx->data_size + idx->count ) ) ) + { + FT_ULong n, cur_offset; + FT_ULong extra = 0; + FT_Byte* org_bytes = idx->bytes; + + + /* at this point, `idx->offsets' can't be NULL */ + cur_offset = idx->offsets[0] - 1; + + /* sanity check */ + if ( cur_offset >= idx->data_size ) + { + FT_TRACE0(( "cff_index_get_pointers:" + " invalid first offset value %d set to zero\n", + cur_offset )); + cur_offset = 0; + } + + if ( !pool ) + t[0] = org_bytes + cur_offset; + else + t[0] = new_bytes + cur_offset; + + for ( n = 1; n <= idx->count; n++ ) + { + FT_ULong next_offset = idx->offsets[n] - 1; + + + /* empty slot + two sanity checks for invalid offset tables */ + if ( next_offset == 0 || + next_offset < cur_offset || + ( next_offset >= idx->data_size && n < idx->count ) ) + next_offset = cur_offset; + + if ( !pool ) + t[n] = org_bytes + next_offset; + else + { + t[n] = new_bytes + next_offset + extra; + + if ( next_offset != cur_offset ) + { + FT_MEM_COPY( t[n - 1], org_bytes + cur_offset, t[n] - t[n - 1] ); + t[n][0] = '\0'; + t[n] += 1; + extra++; + } + } + + cur_offset = next_offset; + } + *table = t; + + if ( pool ) + *pool = new_bytes; + } + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + cff_index_access_element( CFF_Index idx, + FT_UInt element, + FT_Byte** pbytes, + FT_ULong* pbyte_len ) + { + FT_Error error = CFF_Err_Ok; + + + if ( idx && idx->count > element ) + { + /* compute start and end offsets */ + FT_Stream stream = idx->stream; + FT_ULong off1, off2 = 0; + + + /* load offsets from file or the offset table */ + if ( !idx->offsets ) + { + FT_ULong pos = element * idx->off_size; + + + if ( FT_STREAM_SEEK( idx->start + 3 + pos ) ) + goto Exit; + + off1 = cff_index_read_offset( idx, &error ); + if ( error ) + goto Exit; + + if ( off1 != 0 ) + { + do + { + element++; + off2 = cff_index_read_offset( idx, &error ); + } + while ( off2 == 0 && element < idx->count ); + } + } + else /* use offsets table */ + { + off1 = idx->offsets[element]; + if ( off1 ) + { + do + { + element++; + off2 = idx->offsets[element]; + + } while ( off2 == 0 && element < idx->count ); + } + } + + /* XXX: should check off2 does not exceed the end of this entry; */ + /* at present, only truncate off2 at the end of this stream */ + if ( off2 > stream->size + 1 || + idx->data_offset > stream->size - off2 + 1 ) + { + FT_ERROR(( "cff_index_access_element:" + " offset to next entry (%d)" + " exceeds the end of stream (%d)\n", + off2, stream->size - idx->data_offset + 1 )); + off2 = stream->size - idx->data_offset + 1; + } + + /* access element */ + if ( off1 && off2 > off1 ) + { + *pbyte_len = off2 - off1; + + if ( idx->bytes ) + { + /* this index was completely loaded in memory, that's easy */ + *pbytes = idx->bytes + off1 - 1; + } + else + { + /* this index is still on disk/file, access it through a frame */ + if ( FT_STREAM_SEEK( idx->data_offset + off1 - 1 ) || + FT_FRAME_EXTRACT( off2 - off1, *pbytes ) ) + goto Exit; + } + } + else + { + /* empty index element */ + *pbytes = 0; + *pbyte_len = 0; + } + } + else + error = CFF_Err_Invalid_Argument; + + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + cff_index_forget_element( CFF_Index idx, + FT_Byte** pbytes ) + { + if ( idx->bytes == 0 ) + { + FT_Stream stream = idx->stream; + + + FT_FRAME_RELEASE( *pbytes ); + } + } + + + /* get an entry from Name INDEX */ + FT_LOCAL_DEF( FT_String* ) + cff_index_get_name( CFF_Font font, + FT_UInt element ) + { + CFF_Index idx = &font->name_index; + FT_Memory memory = idx->stream->memory; + FT_Byte* bytes; + FT_ULong byte_len; + FT_Error error; + FT_String* name = 0; + + + error = cff_index_access_element( idx, element, &bytes, &byte_len ); + if ( error ) + goto Exit; + + if ( !FT_ALLOC( name, byte_len + 1 ) ) + { + FT_MEM_COPY( name, bytes, byte_len ); + name[byte_len] = 0; + } + cff_index_forget_element( idx, &bytes ); + + Exit: + return name; + } + + + /* get an entry from String INDEX */ + FT_LOCAL_DEF( FT_String* ) + cff_index_get_string( CFF_Font font, + FT_UInt element ) + { + return ( element < font->num_strings ) + ? (FT_String*)font->strings[element] + : NULL; + } + + + FT_LOCAL_DEF( FT_String* ) + cff_index_get_sid_string( CFF_Font font, + FT_UInt sid ) + { + /* value 0xFFFFU indicates a missing dictionary entry */ + if ( sid == 0xFFFFU ) + return NULL; + + /* if it is not a standard string, return it */ + if ( sid > 390 ) + return cff_index_get_string( font, sid - 391 ); + + /* CID-keyed CFF fonts don't have glyph names */ + if ( !font->psnames ) + return NULL; + + /* this is a standard string */ + return (FT_String *)font->psnames->adobe_std_strings( sid ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** FD Select table support ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + + + static void + CFF_Done_FD_Select( CFF_FDSelect fdselect, + FT_Stream stream ) + { + if ( fdselect->data ) + FT_FRAME_RELEASE( fdselect->data ); + + fdselect->data_size = 0; + fdselect->format = 0; + fdselect->range_count = 0; + } + + + static FT_Error + CFF_Load_FD_Select( CFF_FDSelect fdselect, + FT_UInt num_glyphs, + FT_Stream stream, + FT_ULong offset ) + { + FT_Error error; + FT_Byte format; + FT_UInt num_ranges; + + + /* read format */ + if ( FT_STREAM_SEEK( offset ) || FT_READ_BYTE( format ) ) + goto Exit; + + fdselect->format = format; + fdselect->cache_count = 0; /* clear cache */ + + switch ( format ) + { + case 0: /* format 0, that's simple */ + fdselect->data_size = num_glyphs; + goto Load_Data; + + case 3: /* format 3, a tad more complex */ + if ( FT_READ_USHORT( num_ranges ) ) + goto Exit; + + fdselect->data_size = num_ranges * 3 + 2; + + Load_Data: + if ( FT_FRAME_EXTRACT( fdselect->data_size, fdselect->data ) ) + goto Exit; + break; + + default: /* hmm... that's wrong */ + error = CFF_Err_Invalid_File_Format; + } + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Byte ) + cff_fd_select_get( CFF_FDSelect fdselect, + FT_UInt glyph_index ) + { + FT_Byte fd = 0; + + + switch ( fdselect->format ) + { + case 0: + fd = fdselect->data[glyph_index]; + break; + + case 3: + /* first, compare to cache */ + if ( (FT_UInt)( glyph_index - fdselect->cache_first ) < + fdselect->cache_count ) + { + fd = fdselect->cache_fd; + break; + } + + /* then, lookup the ranges array */ + { + FT_Byte* p = fdselect->data; + FT_Byte* p_limit = p + fdselect->data_size; + FT_Byte fd2; + FT_UInt first, limit; + + + first = FT_NEXT_USHORT( p ); + do + { + if ( glyph_index < first ) + break; + + fd2 = *p++; + limit = FT_NEXT_USHORT( p ); + + if ( glyph_index < limit ) + { + fd = fd2; + + /* update cache */ + fdselect->cache_first = first; + fdselect->cache_count = limit-first; + fdselect->cache_fd = fd2; + break; + } + first = limit; + + } while ( p < p_limit ); + } + break; + + default: + ; + } + + return fd; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*** ***/ + /*** CFF font support ***/ + /*** ***/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + cff_charset_compute_cids( CFF_Charset charset, + FT_UInt num_glyphs, + FT_Memory memory ) + { + FT_Error error = CFF_Err_Ok; + FT_UInt i; + FT_Long j; + FT_UShort max_cid = 0; + + + if ( charset->max_cid > 0 ) + goto Exit; + + for ( i = 0; i < num_glyphs; i++ ) + { + if ( charset->sids[i] > max_cid ) + max_cid = charset->sids[i]; + } + + if ( FT_NEW_ARRAY( charset->cids, (FT_ULong)max_cid + 1 ) ) + goto Exit; + + /* When multiple GIDs map to the same CID, we choose the lowest */ + /* GID. This is not described in any spec, but it matches the */ + /* behaviour of recent Acroread versions. */ + for ( j = num_glyphs - 1; j >= 0 ; j-- ) + charset->cids[charset->sids[j]] = (FT_UShort)j; + + charset->max_cid = max_cid; + charset->num_glyphs = num_glyphs; + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_UInt ) + cff_charset_cid_to_gindex( CFF_Charset charset, + FT_UInt cid ) + { + FT_UInt result = 0; + + + if ( cid <= charset->max_cid ) + result = charset->cids[cid]; + + return result; + } + + + static void + cff_charset_free_cids( CFF_Charset charset, + FT_Memory memory ) + { + FT_FREE( charset->cids ); + charset->max_cid = 0; + } + + + static void + cff_charset_done( CFF_Charset charset, + FT_Stream stream ) + { + FT_Memory memory = stream->memory; + + + cff_charset_free_cids( charset, memory ); + + FT_FREE( charset->sids ); + charset->format = 0; + charset->offset = 0; + } + + + static FT_Error + cff_charset_load( CFF_Charset charset, + FT_UInt num_glyphs, + FT_Stream stream, + FT_ULong base_offset, + FT_ULong offset, + FT_Bool invert ) + { + FT_Memory memory = stream->memory; + FT_Error error = CFF_Err_Ok; + FT_UShort glyph_sid; + + + /* If the the offset is greater than 2, we have to parse the */ + /* charset table. */ + if ( offset > 2 ) + { + FT_UInt j; + + + charset->offset = base_offset + offset; + + /* Get the format of the table. */ + if ( FT_STREAM_SEEK( charset->offset ) || + FT_READ_BYTE( charset->format ) ) + goto Exit; + + /* Allocate memory for sids. */ + if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) + goto Exit; + + /* assign the .notdef glyph */ + charset->sids[0] = 0; + + switch ( charset->format ) + { + case 0: + if ( num_glyphs > 0 ) + { + if ( FT_FRAME_ENTER( ( num_glyphs - 1 ) * 2 ) ) + goto Exit; + + for ( j = 1; j < num_glyphs; j++ ) + charset->sids[j] = FT_GET_USHORT(); + + FT_FRAME_EXIT(); + } + break; + + case 1: + case 2: + { + FT_UInt nleft; + FT_UInt i; + + + j = 1; + + while ( j < num_glyphs ) + { + /* Read the first glyph sid of the range. */ + if ( FT_READ_USHORT( glyph_sid ) ) + goto Exit; + + /* Read the number of glyphs in the range. */ + if ( charset->format == 2 ) + { + if ( FT_READ_USHORT( nleft ) ) + goto Exit; + } + else + { + if ( FT_READ_BYTE( nleft ) ) + goto Exit; + } + + /* try to rescue some of the SIDs if `nleft' is too large */ + if ( glyph_sid > 0xFFFFL - nleft ) + { + FT_ERROR(( "cff_charset_load: invalid SID range trimmed" + " nleft=%d -> %d\n", nleft, 0xFFFFL - glyph_sid )); + nleft = ( FT_UInt )( 0xFFFFL - glyph_sid ); + } + + /* Fill in the range of sids -- `nleft + 1' glyphs. */ + for ( i = 0; j < num_glyphs && i <= nleft; i++, j++, glyph_sid++ ) + charset->sids[j] = glyph_sid; + } + } + break; + + default: + FT_ERROR(( "cff_charset_load: invalid table format\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + } + else + { + /* Parse default tables corresponding to offset == 0, 1, or 2. */ + /* CFF specification intimates the following: */ + /* */ + /* In order to use a predefined charset, the following must be */ + /* true: The charset constructed for the glyphs in the font's */ + /* charstrings dictionary must match the predefined charset in */ + /* the first num_glyphs. */ + + charset->offset = offset; /* record charset type */ + + switch ( (FT_UInt)offset ) + { + case 0: + if ( num_glyphs > 229 ) + { + FT_ERROR(( "cff_charset_load: implicit charset larger than\n" + "predefined charset (Adobe ISO-Latin)\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + /* Allocate memory for sids. */ + if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) + goto Exit; + + /* Copy the predefined charset into the allocated memory. */ + FT_ARRAY_COPY( charset->sids, cff_isoadobe_charset, num_glyphs ); + + break; + + case 1: + if ( num_glyphs > 166 ) + { + FT_ERROR(( "cff_charset_load: implicit charset larger than\n" + "predefined charset (Adobe Expert)\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + /* Allocate memory for sids. */ + if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) + goto Exit; + + /* Copy the predefined charset into the allocated memory. */ + FT_ARRAY_COPY( charset->sids, cff_expert_charset, num_glyphs ); + + break; + + case 2: + if ( num_glyphs > 87 ) + { + FT_ERROR(( "cff_charset_load: implicit charset larger than\n" + "predefined charset (Adobe Expert Subset)\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + /* Allocate memory for sids. */ + if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) + goto Exit; + + /* Copy the predefined charset into the allocated memory. */ + FT_ARRAY_COPY( charset->sids, cff_expertsubset_charset, num_glyphs ); + + break; + + default: + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + } + + /* we have to invert the `sids' array for subsetted CID-keyed fonts */ + if ( invert ) + error = cff_charset_compute_cids( charset, num_glyphs, memory ); + + Exit: + /* Clean up if there was an error. */ + if ( error ) + { + FT_FREE( charset->sids ); + FT_FREE( charset->cids ); + charset->format = 0; + charset->offset = 0; + charset->sids = 0; + } + + return error; + } + + + static void + cff_encoding_done( CFF_Encoding encoding ) + { + encoding->format = 0; + encoding->offset = 0; + encoding->count = 0; + } + + + static FT_Error + cff_encoding_load( CFF_Encoding encoding, + CFF_Charset charset, + FT_UInt num_glyphs, + FT_Stream stream, + FT_ULong base_offset, + FT_ULong offset ) + { + FT_Error error = CFF_Err_Ok; + FT_UInt count; + FT_UInt j; + FT_UShort glyph_sid; + FT_UInt glyph_code; + + + /* Check for charset->sids. If we do not have this, we fail. */ + if ( !charset->sids ) + { + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + /* Zero out the code to gid/sid mappings. */ + for ( j = 0; j < 256; j++ ) + { + encoding->sids [j] = 0; + encoding->codes[j] = 0; + } + + /* Note: The encoding table in a CFF font is indexed by glyph index; */ + /* the first encoded glyph index is 1. Hence, we read the character */ + /* code (`glyph_code') at index j and make the assignment: */ + /* */ + /* encoding->codes[glyph_code] = j + 1 */ + /* */ + /* We also make the assignment: */ + /* */ + /* encoding->sids[glyph_code] = charset->sids[j + 1] */ + /* */ + /* This gives us both a code to GID and a code to SID mapping. */ + + if ( offset > 1 ) + { + encoding->offset = base_offset + offset; + + /* we need to parse the table to determine its size */ + if ( FT_STREAM_SEEK( encoding->offset ) || + FT_READ_BYTE( encoding->format ) || + FT_READ_BYTE( count ) ) + goto Exit; + + switch ( encoding->format & 0x7F ) + { + case 0: + { + FT_Byte* p; + + + /* By convention, GID 0 is always ".notdef" and is never */ + /* coded in the font. Hence, the number of codes found */ + /* in the table is `count+1'. */ + /* */ + encoding->count = count + 1; + + if ( FT_FRAME_ENTER( count ) ) + goto Exit; + + p = (FT_Byte*)stream->cursor; + + for ( j = 1; j <= count; j++ ) + { + glyph_code = *p++; + + /* Make sure j is not too big. */ + if ( j < num_glyphs ) + { + /* Assign code to GID mapping. */ + encoding->codes[glyph_code] = (FT_UShort)j; + + /* Assign code to SID mapping. */ + encoding->sids[glyph_code] = charset->sids[j]; + } + } + + FT_FRAME_EXIT(); + } + break; + + case 1: + { + FT_UInt nleft; + FT_UInt i = 1; + FT_UInt k; + + + encoding->count = 0; + + /* Parse the Format1 ranges. */ + for ( j = 0; j < count; j++, i += nleft ) + { + /* Read the first glyph code of the range. */ + if ( FT_READ_BYTE( glyph_code ) ) + goto Exit; + + /* Read the number of codes in the range. */ + if ( FT_READ_BYTE( nleft ) ) + goto Exit; + + /* Increment nleft, so we read `nleft + 1' codes/sids. */ + nleft++; + + /* compute max number of character codes */ + if ( (FT_UInt)nleft > encoding->count ) + encoding->count = nleft; + + /* Fill in the range of codes/sids. */ + for ( k = i; k < nleft + i; k++, glyph_code++ ) + { + /* Make sure k is not too big. */ + if ( k < num_glyphs && glyph_code < 256 ) + { + /* Assign code to GID mapping. */ + encoding->codes[glyph_code] = (FT_UShort)k; + + /* Assign code to SID mapping. */ + encoding->sids[glyph_code] = charset->sids[k]; + } + } + } + + /* simple check; one never knows what can be found in a font */ + if ( encoding->count > 256 ) + encoding->count = 256; + } + break; + + default: + FT_ERROR(( "cff_encoding_load: invalid table format\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + /* Parse supplemental encodings, if any. */ + if ( encoding->format & 0x80 ) + { + FT_UInt gindex; + + + /* count supplements */ + if ( FT_READ_BYTE( count ) ) + goto Exit; + + for ( j = 0; j < count; j++ ) + { + /* Read supplemental glyph code. */ + if ( FT_READ_BYTE( glyph_code ) ) + goto Exit; + + /* Read the SID associated with this glyph code. */ + if ( FT_READ_USHORT( glyph_sid ) ) + goto Exit; + + /* Assign code to SID mapping. */ + encoding->sids[glyph_code] = glyph_sid; + + /* First, look up GID which has been assigned to */ + /* SID glyph_sid. */ + for ( gindex = 0; gindex < num_glyphs; gindex++ ) + { + if ( charset->sids[gindex] == glyph_sid ) + { + encoding->codes[glyph_code] = (FT_UShort)gindex; + break; + } + } + } + } + } + else + { + /* We take into account the fact a CFF font can use a predefined */ + /* encoding without containing all of the glyphs encoded by this */ + /* encoding (see the note at the end of section 12 in the CFF */ + /* specification). */ + + switch ( (FT_UInt)offset ) + { + case 0: + /* First, copy the code to SID mapping. */ + FT_ARRAY_COPY( encoding->sids, cff_standard_encoding, 256 ); + goto Populate; + + case 1: + /* First, copy the code to SID mapping. */ + FT_ARRAY_COPY( encoding->sids, cff_expert_encoding, 256 ); + + Populate: + /* Construct code to GID mapping from code to SID mapping */ + /* and charset. */ + + encoding->count = 0; + + error = cff_charset_compute_cids( charset, num_glyphs, + stream->memory ); + if ( error ) + goto Exit; + + for ( j = 0; j < 256; j++ ) + { + FT_UInt sid = encoding->sids[j]; + FT_UInt gid = 0; + + + if ( sid ) + gid = cff_charset_cid_to_gindex( charset, sid ); + + if ( gid != 0 ) + { + encoding->codes[j] = (FT_UShort)gid; + encoding->count = j + 1; + } + else + { + encoding->codes[j] = 0; + encoding->sids [j] = 0; + } + } + break; + + default: + FT_ERROR(( "cff_encoding_load: invalid table format\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + } + + Exit: + + /* Clean up if there was an error. */ + return error; + } + + + static FT_Error + cff_subfont_load( CFF_SubFont font, + CFF_Index idx, + FT_UInt font_index, + FT_Stream stream, + FT_ULong base_offset, + FT_Library library ) + { + FT_Error error; + CFF_ParserRec parser; + FT_Byte* dict = NULL; + FT_ULong dict_len; + CFF_FontRecDict top = &font->font_dict; + CFF_Private priv = &font->private_dict; + + + cff_parser_init( &parser, CFF_CODE_TOPDICT, &font->font_dict, library ); + + /* set defaults */ + FT_MEM_ZERO( top, sizeof ( *top ) ); + + top->underline_position = -100L << 16; + top->underline_thickness = 50L << 16; + top->charstring_type = 2; + top->font_matrix.xx = 0x10000L; + top->font_matrix.yy = 0x10000L; + top->cid_count = 8720; + + /* we use the implementation specific SID value 0xFFFF to indicate */ + /* missing entries */ + top->version = 0xFFFFU; + top->notice = 0xFFFFU; + top->copyright = 0xFFFFU; + top->full_name = 0xFFFFU; + top->family_name = 0xFFFFU; + top->weight = 0xFFFFU; + top->embedded_postscript = 0xFFFFU; + + top->cid_registry = 0xFFFFU; + top->cid_ordering = 0xFFFFU; + top->cid_font_name = 0xFFFFU; + + error = cff_index_access_element( idx, font_index, &dict, &dict_len ); + if ( !error ) + { + FT_TRACE4(( " top dictionary:\n" )); + error = cff_parser_run( &parser, dict, dict + dict_len ); + } + + cff_index_forget_element( idx, &dict ); + + if ( error ) + goto Exit; + + /* if it is a CID font, we stop there */ + if ( top->cid_registry != 0xFFFFU ) + goto Exit; + + /* parse the private dictionary, if any */ + if ( top->private_offset && top->private_size ) + { + /* set defaults */ + FT_MEM_ZERO( priv, sizeof ( *priv ) ); + + priv->blue_shift = 7; + priv->blue_fuzz = 1; + priv->lenIV = -1; + priv->expansion_factor = (FT_Fixed)( 0.06 * 0x10000L ); + priv->blue_scale = (FT_Fixed)( 0.039625 * 0x10000L * 1000 ); + + cff_parser_init( &parser, CFF_CODE_PRIVATE, priv, library ); + + if ( FT_STREAM_SEEK( base_offset + font->font_dict.private_offset ) || + FT_FRAME_ENTER( font->font_dict.private_size ) ) + goto Exit; + + FT_TRACE4(( " private dictionary:\n" )); + error = cff_parser_run( &parser, + (FT_Byte*)stream->cursor, + (FT_Byte*)stream->limit ); + FT_FRAME_EXIT(); + if ( error ) + goto Exit; + + /* ensure that `num_blue_values' is even */ + priv->num_blue_values &= ~1; + } + + /* read the local subrs, if any */ + if ( priv->local_subrs_offset ) + { + if ( FT_STREAM_SEEK( base_offset + top->private_offset + + priv->local_subrs_offset ) ) + goto Exit; + + error = cff_index_init( &font->local_subrs_index, stream, 1 ); + if ( error ) + goto Exit; + + error = cff_index_get_pointers( &font->local_subrs_index, + &font->local_subrs, NULL ); + if ( error ) + goto Exit; + } + + Exit: + return error; + } + + + static void + cff_subfont_done( FT_Memory memory, + CFF_SubFont subfont ) + { + if ( subfont ) + { + cff_index_done( &subfont->local_subrs_index ); + FT_FREE( subfont->local_subrs ); + } + } + + + FT_LOCAL_DEF( FT_Error ) + cff_font_load( FT_Library library, + FT_Stream stream, + FT_Int face_index, + CFF_Font font, + FT_Bool pure_cff ) + { + static const FT_Frame_Field cff_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE CFF_FontRec + + FT_FRAME_START( 4 ), + FT_FRAME_BYTE( version_major ), + FT_FRAME_BYTE( version_minor ), + FT_FRAME_BYTE( header_size ), + FT_FRAME_BYTE( absolute_offsize ), + FT_FRAME_END + }; + + FT_Error error; + FT_Memory memory = stream->memory; + FT_ULong base_offset; + CFF_FontRecDict dict; + CFF_IndexRec string_index; + + + FT_ZERO( font ); + FT_ZERO( &string_index ); + + font->stream = stream; + font->memory = memory; + dict = &font->top_font.font_dict; + base_offset = FT_STREAM_POS(); + + /* read CFF font header */ + if ( FT_STREAM_READ_FIELDS( cff_header_fields, font ) ) + goto Exit; + + /* check format */ + if ( font->version_major != 1 || + font->header_size < 4 || + font->absolute_offsize > 4 ) + { + FT_TRACE2(( " not a CFF font header\n" )); + error = CFF_Err_Unknown_File_Format; + goto Exit; + } + + /* skip the rest of the header */ + if ( FT_STREAM_SKIP( font->header_size - 4 ) ) + goto Exit; + + /* read the name, top dict, string and global subrs index */ + if ( FT_SET_ERROR( cff_index_init( &font->name_index, + stream, 0 ) ) || + FT_SET_ERROR( cff_index_init( &font->font_dict_index, + stream, 0 ) ) || + FT_SET_ERROR( cff_index_init( &string_index, + stream, 1 ) ) || + FT_SET_ERROR( cff_index_init( &font->global_subrs_index, + stream, 1 ) ) || + FT_SET_ERROR( cff_index_get_pointers( &string_index, + &font->strings, + &font->string_pool ) ) ) + goto Exit; + + font->num_strings = string_index.count; + + /* well, we don't really forget the `disabled' fonts... */ + font->num_faces = font->name_index.count; + if ( face_index >= (FT_Int)font->num_faces ) + { + FT_ERROR(( "cff_font_load: incorrect face index = %d\n", + face_index )); + error = CFF_Err_Invalid_Argument; + } + + /* in case of a font format check, simply exit now */ + if ( face_index < 0 ) + goto Exit; + + /* now, parse the top-level font dictionary */ + FT_TRACE4(( "parsing top-level\n" )); + error = cff_subfont_load( &font->top_font, + &font->font_dict_index, + face_index, + stream, + base_offset, + library ); + if ( error ) + goto Exit; + + if ( FT_STREAM_SEEK( base_offset + dict->charstrings_offset ) ) + goto Exit; + + error = cff_index_init( &font->charstrings_index, stream, 0 ); + if ( error ) + goto Exit; + + /* now, check for a CID font */ + if ( dict->cid_registry != 0xFFFFU ) + { + CFF_IndexRec fd_index; + CFF_SubFont sub = NULL; + FT_UInt idx; + + + /* this is a CID-keyed font, we must now allocate a table of */ + /* sub-fonts, then load each of them separately */ + if ( FT_STREAM_SEEK( base_offset + dict->cid_fd_array_offset ) ) + goto Exit; + + error = cff_index_init( &fd_index, stream, 0 ); + if ( error ) + goto Exit; + + if ( fd_index.count > CFF_MAX_CID_FONTS ) + { + FT_TRACE0(( "cff_font_load: FD array too large in CID font\n" )); + goto Fail_CID; + } + + /* allocate & read each font dict independently */ + font->num_subfonts = fd_index.count; + if ( FT_NEW_ARRAY( sub, fd_index.count ) ) + goto Fail_CID; + + /* set up pointer table */ + for ( idx = 0; idx < fd_index.count; idx++ ) + font->subfonts[idx] = sub + idx; + + /* now load each subfont independently */ + for ( idx = 0; idx < fd_index.count; idx++ ) + { + sub = font->subfonts[idx]; + FT_TRACE4(( "parsing subfont %u\n", idx )); + error = cff_subfont_load( sub, &fd_index, idx, + stream, base_offset, library ); + if ( error ) + goto Fail_CID; + } + + /* now load the FD Select array */ + error = CFF_Load_FD_Select( &font->fd_select, + font->charstrings_index.count, + stream, + base_offset + dict->cid_fd_select_offset ); + + Fail_CID: + cff_index_done( &fd_index ); + + if ( error ) + goto Exit; + } + else + font->num_subfonts = 0; + + /* read the charstrings index now */ + if ( dict->charstrings_offset == 0 ) + { + FT_ERROR(( "cff_font_load: no charstrings offset\n" )); + error = CFF_Err_Invalid_File_Format; + goto Exit; + } + + font->num_glyphs = font->charstrings_index.count; + + error = cff_index_get_pointers( &font->global_subrs_index, + &font->global_subrs, NULL ); + + if ( error ) + goto Exit; + + /* read the Charset and Encoding tables if available */ + if ( font->num_glyphs > 0 ) + { + FT_Bool invert = FT_BOOL( dict->cid_registry != 0xFFFFU && pure_cff ); + + + error = cff_charset_load( &font->charset, font->num_glyphs, stream, + base_offset, dict->charset_offset, invert ); + if ( error ) + goto Exit; + + /* CID-keyed CFFs don't have an encoding */ + if ( dict->cid_registry == 0xFFFFU ) + { + error = cff_encoding_load( &font->encoding, + &font->charset, + font->num_glyphs, + stream, + base_offset, + dict->encoding_offset ); + if ( error ) + goto Exit; + } + } + + /* get the font name (/CIDFontName for CID-keyed fonts, */ + /* /FontName otherwise) */ + font->font_name = cff_index_get_name( font, face_index ); + + Exit: + cff_index_done( &string_index ); + + return error; + } + + + FT_LOCAL_DEF( void ) + cff_font_done( CFF_Font font ) + { + FT_Memory memory = font->memory; + FT_UInt idx; + + + cff_index_done( &font->global_subrs_index ); + cff_index_done( &font->font_dict_index ); + cff_index_done( &font->name_index ); + cff_index_done( &font->charstrings_index ); + + /* release font dictionaries, but only if working with */ + /* a CID keyed CFF font */ + if ( font->num_subfonts > 0 ) + { + for ( idx = 0; idx < font->num_subfonts; idx++ ) + cff_subfont_done( memory, font->subfonts[idx] ); + + /* the subfonts array has been allocated as a single block */ + FT_FREE( font->subfonts[0] ); + } + + cff_encoding_done( &font->encoding ); + cff_charset_done( &font->charset, font->stream ); + + cff_subfont_done( memory, &font->top_font ); + + CFF_Done_FD_Select( &font->fd_select, font->stream ); + + FT_FREE( font->font_info ); + + FT_FREE( font->font_name ); + FT_FREE( font->global_subrs ); + FT_FREE( font->strings ); + FT_FREE( font->string_pool ); + } + + +/* END */ diff --git a/src/cff/cffload.h b/src/cff/cffload.h new file mode 100644 index 0000000..8049619 --- /dev/null +++ b/src/cff/cffload.h @@ -0,0 +1,83 @@ +/***************************************************************************/ +/* */ +/* cffload.h */ +/* */ +/* OpenType & CFF data/program tables loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2007, 2008, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFLOAD_H__ +#define __CFFLOAD_H__ + + +#include <ft2build.h> +#include "cfftypes.h" + + +FT_BEGIN_HEADER + + FT_LOCAL( FT_UShort ) + cff_get_standard_encoding( FT_UInt charcode ); + + + FT_LOCAL( FT_String* ) + cff_index_get_string( CFF_Font font, + FT_UInt element ); + + FT_LOCAL( FT_String* ) + cff_index_get_sid_string( CFF_Font font, + FT_UInt sid ); + + + FT_LOCAL( FT_Error ) + cff_index_access_element( CFF_Index idx, + FT_UInt element, + FT_Byte** pbytes, + FT_ULong* pbyte_len ); + + FT_LOCAL( void ) + cff_index_forget_element( CFF_Index idx, + FT_Byte** pbytes ); + + FT_LOCAL( FT_String* ) + cff_index_get_name( CFF_Font font, + FT_UInt element ); + + + FT_LOCAL( FT_UInt ) + cff_charset_cid_to_gindex( CFF_Charset charset, + FT_UInt cid ); + + + FT_LOCAL( FT_Error ) + cff_font_load( FT_Library library, + FT_Stream stream, + FT_Int face_index, + CFF_Font font, + FT_Bool pure_cff ); + + FT_LOCAL( void ) + cff_font_done( CFF_Font font ); + + + FT_LOCAL( FT_Byte ) + cff_fd_select_get( CFF_FDSelect fdselect, + FT_UInt glyph_index ); + + +FT_END_HEADER + +#endif /* __CFFLOAD_H__ */ + + +/* END */ diff --git a/src/cff/cffobjs.c b/src/cff/cffobjs.c new file mode 100644 index 0000000..6ad0e50 --- /dev/null +++ b/src/cff/cffobjs.c @@ -0,0 +1,1074 @@ +/***************************************************************************/ +/* */ +/* cffobjs.c */ +/* */ +/* OpenType objects manager (body). */ +/* */ +/* Copyright 1996-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_STREAM_H +#include FT_ERRORS_H +#include FT_TRUETYPE_IDS_H +#include FT_TRUETYPE_TAGS_H +#include FT_INTERNAL_SFNT_H +#include "cffobjs.h" +#include "cffload.h" +#include "cffcmap.h" +#include "cfferrs.h" +#include "cffpic.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cffobjs + + + /*************************************************************************/ + /* */ + /* SIZE FUNCTIONS */ + /* */ + /* Note that we store the global hints in the size's `internal' root */ + /* field. */ + /* */ + /*************************************************************************/ + + + static PSH_Globals_Funcs + cff_size_get_globals_funcs( CFF_Size size ) + { + CFF_Face face = (CFF_Face)size->root.face; + CFF_Font font = (CFF_Font)face->extra.data; + PSHinter_Service pshinter = font->pshinter; + FT_Module module; + + + module = FT_Get_Module( size->root.face->driver->root.library, + "pshinter" ); + return ( module && pshinter && pshinter->get_globals_funcs ) + ? pshinter->get_globals_funcs( module ) + : 0; + } + + + FT_LOCAL_DEF( void ) + cff_size_done( FT_Size cffsize ) /* CFF_Size */ + { + CFF_Size size = (CFF_Size)cffsize; + CFF_Face face = (CFF_Face)size->root.face; + CFF_Font font = (CFF_Font)face->extra.data; + CFF_Internal internal = (CFF_Internal)cffsize->internal; + + + if ( internal ) + { + PSH_Globals_Funcs funcs; + + + funcs = cff_size_get_globals_funcs( size ); + if ( funcs ) + { + FT_UInt i; + + + funcs->destroy( internal->topfont ); + + for ( i = font->num_subfonts; i > 0; i-- ) + funcs->destroy( internal->subfonts[i - 1] ); + } + + /* `internal' is freed by destroy_size (in ftobjs.c) */ + } + } + + + /* CFF and Type 1 private dictionaries have slightly different */ + /* structures; we need to synthesize a Type 1 dictionary on the fly */ + + static void + cff_make_private_dict( CFF_SubFont subfont, + PS_Private priv ) + { + CFF_Private cpriv = &subfont->private_dict; + FT_UInt n, count; + + + FT_MEM_ZERO( priv, sizeof ( *priv ) ); + + count = priv->num_blue_values = cpriv->num_blue_values; + for ( n = 0; n < count; n++ ) + priv->blue_values[n] = (FT_Short)cpriv->blue_values[n]; + + count = priv->num_other_blues = cpriv->num_other_blues; + for ( n = 0; n < count; n++ ) + priv->other_blues[n] = (FT_Short)cpriv->other_blues[n]; + + count = priv->num_family_blues = cpriv->num_family_blues; + for ( n = 0; n < count; n++ ) + priv->family_blues[n] = (FT_Short)cpriv->family_blues[n]; + + count = priv->num_family_other_blues = cpriv->num_family_other_blues; + for ( n = 0; n < count; n++ ) + priv->family_other_blues[n] = (FT_Short)cpriv->family_other_blues[n]; + + priv->blue_scale = cpriv->blue_scale; + priv->blue_shift = (FT_Int)cpriv->blue_shift; + priv->blue_fuzz = (FT_Int)cpriv->blue_fuzz; + + priv->standard_width[0] = (FT_UShort)cpriv->standard_width; + priv->standard_height[0] = (FT_UShort)cpriv->standard_height; + + count = priv->num_snap_widths = cpriv->num_snap_widths; + for ( n = 0; n < count; n++ ) + priv->snap_widths[n] = (FT_Short)cpriv->snap_widths[n]; + + count = priv->num_snap_heights = cpriv->num_snap_heights; + for ( n = 0; n < count; n++ ) + priv->snap_heights[n] = (FT_Short)cpriv->snap_heights[n]; + + priv->force_bold = cpriv->force_bold; + priv->language_group = cpriv->language_group; + priv->lenIV = cpriv->lenIV; + } + + + FT_LOCAL_DEF( FT_Error ) + cff_size_init( FT_Size cffsize ) /* CFF_Size */ + { + CFF_Size size = (CFF_Size)cffsize; + FT_Error error = CFF_Err_Ok; + PSH_Globals_Funcs funcs = cff_size_get_globals_funcs( size ); + + + if ( funcs ) + { + CFF_Face face = (CFF_Face)cffsize->face; + CFF_Font font = (CFF_Font)face->extra.data; + CFF_Internal internal = NULL; + + PS_PrivateRec priv; + FT_Memory memory = cffsize->face->memory; + + FT_UInt i; + + + if ( FT_NEW( internal ) ) + goto Exit; + + cff_make_private_dict( &font->top_font, &priv ); + error = funcs->create( cffsize->face->memory, &priv, + &internal->topfont ); + if ( error ) + goto Exit; + + for ( i = font->num_subfonts; i > 0; i-- ) + { + CFF_SubFont sub = font->subfonts[i - 1]; + + + cff_make_private_dict( sub, &priv ); + error = funcs->create( cffsize->face->memory, &priv, + &internal->subfonts[i - 1] ); + if ( error ) + goto Exit; + } + + cffsize->internal = (FT_Size_Internal)(void*)internal; + } + + size->strike_index = 0xFFFFFFFFUL; + + Exit: + return error; + } + + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + FT_LOCAL_DEF( FT_Error ) + cff_size_select( FT_Size size, + FT_ULong strike_index ) + { + CFF_Size cffsize = (CFF_Size)size; + PSH_Globals_Funcs funcs; + + + cffsize->strike_index = strike_index; + + FT_Select_Metrics( size->face, strike_index ); + + funcs = cff_size_get_globals_funcs( cffsize ); + + if ( funcs ) + { + CFF_Face face = (CFF_Face)size->face; + CFF_Font font = (CFF_Font)face->extra.data; + CFF_Internal internal = (CFF_Internal)size->internal; + + FT_ULong top_upm = font->top_font.font_dict.units_per_em; + FT_UInt i; + + + funcs->set_scale( internal->topfont, + size->metrics.x_scale, size->metrics.y_scale, + 0, 0 ); + + for ( i = font->num_subfonts; i > 0; i-- ) + { + CFF_SubFont sub = font->subfonts[i - 1]; + FT_ULong sub_upm = sub->font_dict.units_per_em; + FT_Pos x_scale, y_scale; + + + if ( top_upm != sub_upm ) + { + x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm ); + y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm ); + } + else + { + x_scale = size->metrics.x_scale; + y_scale = size->metrics.y_scale; + } + + funcs->set_scale( internal->subfonts[i - 1], + x_scale, y_scale, 0, 0 ); + } + } + + return CFF_Err_Ok; + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + + FT_LOCAL_DEF( FT_Error ) + cff_size_request( FT_Size size, + FT_Size_Request req ) + { + CFF_Size cffsize = (CFF_Size)size; + PSH_Globals_Funcs funcs; + + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + if ( FT_HAS_FIXED_SIZES( size->face ) ) + { + CFF_Face cffface = (CFF_Face)size->face; + SFNT_Service sfnt = (SFNT_Service)cffface->sfnt; + FT_ULong strike_index; + + + if ( sfnt->set_sbit_strike( cffface, req, &strike_index ) ) + cffsize->strike_index = 0xFFFFFFFFUL; + else + return cff_size_select( size, strike_index ); + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + FT_Request_Metrics( size->face, req ); + + funcs = cff_size_get_globals_funcs( cffsize ); + + if ( funcs ) + { + CFF_Face cffface = (CFF_Face)size->face; + CFF_Font font = (CFF_Font)cffface->extra.data; + CFF_Internal internal = (CFF_Internal)size->internal; + + FT_ULong top_upm = font->top_font.font_dict.units_per_em; + FT_UInt i; + + + funcs->set_scale( internal->topfont, + size->metrics.x_scale, size->metrics.y_scale, + 0, 0 ); + + for ( i = font->num_subfonts; i > 0; i-- ) + { + CFF_SubFont sub = font->subfonts[i - 1]; + FT_ULong sub_upm = sub->font_dict.units_per_em; + FT_Pos x_scale, y_scale; + + + if ( top_upm != sub_upm ) + { + x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm ); + y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm ); + } + else + { + x_scale = size->metrics.x_scale; + y_scale = size->metrics.y_scale; + } + + funcs->set_scale( internal->subfonts[i - 1], + x_scale, y_scale, 0, 0 ); + } + } + + return CFF_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* SLOT FUNCTIONS */ + /* */ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + cff_slot_done( FT_GlyphSlot slot ) + { + slot->internal->glyph_hints = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + cff_slot_init( FT_GlyphSlot slot ) + { + CFF_Face face = (CFF_Face)slot->face; + CFF_Font font = (CFF_Font)face->extra.data; + PSHinter_Service pshinter = font->pshinter; + + + if ( pshinter ) + { + FT_Module module; + + + module = FT_Get_Module( slot->face->driver->root.library, + "pshinter" ); + if ( module ) + { + T2_Hints_Funcs funcs; + + + funcs = pshinter->get_t2_funcs( module ); + slot->internal->glyph_hints = (void*)funcs; + } + } + + return CFF_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* FACE FUNCTIONS */ + /* */ + /*************************************************************************/ + + static FT_String* + cff_strcpy( FT_Memory memory, + const FT_String* source ) + { + FT_Error error; + FT_String* result; + + + (void)FT_STRDUP( result, source ); + + FT_UNUSED( error ); + + return result; + } + + + /* Strip all subset prefixes of the form `ABCDEF+'. Usually, there */ + /* is only one, but font names like `APCOOG+JFABTD+FuturaBQ-Bold' */ + /* have been seen in the wild. */ + + static void + remove_subset_prefix( FT_String* name ) + { + FT_Int32 idx = 0; + FT_Int32 length = strlen( name ) + 1; + FT_Bool continue_search = 1; + + + while ( continue_search ) + { + if ( length >= 7 && name[6] == '+' ) + { + for ( idx = 0; idx < 6; idx++ ) + { + /* ASCII uppercase letters */ + if ( !( 'A' <= name[idx] && name[idx] <= 'Z' ) ) + continue_search = 0; + } + + if ( continue_search ) + { + for ( idx = 7; idx < length; idx++ ) + name[idx - 7] = name[idx]; + length -= 7; + } + } + else + continue_search = 0; + } + } + + + /* Remove the style part from the family name (if present). */ + + static void + remove_style( FT_String* family_name, + const FT_String* style_name ) + { + FT_Int32 family_name_length, style_name_length; + + + family_name_length = strlen( family_name ); + style_name_length = strlen( style_name ); + + if ( family_name_length > style_name_length ) + { + FT_Int idx; + + + for ( idx = 1; idx <= style_name_length; ++idx ) + { + if ( family_name[family_name_length - idx] != + style_name[style_name_length - idx] ) + break; + } + + if ( idx > style_name_length ) + { + /* family_name ends with style_name; remove it */ + idx = family_name_length - style_name_length - 1; + + /* also remove special characters */ + /* between real family name and style */ + while ( idx > 0 && + ( family_name[idx] == '-' || + family_name[idx] == ' ' || + family_name[idx] == '_' || + family_name[idx] == '+' ) ) + --idx; + + if ( idx > 0 ) + family_name[idx + 1] = '\0'; + } + } + } + + + FT_LOCAL_DEF( FT_Error ) + cff_face_init( FT_Stream stream, + FT_Face cffface, /* CFF_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + CFF_Face face = (CFF_Face)cffface; + FT_Error error; + SFNT_Service sfnt; + FT_Service_PsCMaps psnames; + PSHinter_Service pshinter; + FT_Bool pure_cff = 1; + FT_Bool sfnt_format = 0; + FT_Library library = cffface->driver->root.library; + + + sfnt = (SFNT_Service)FT_Get_Module_Interface( + library, "sfnt" ); + if ( !sfnt ) + { + FT_ERROR(( "cff_face_init: cannot access `sfnt' module\n" )); + error = CFF_Err_Missing_Module; + goto Exit; + } + + FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); + + pshinter = (PSHinter_Service)FT_Get_Module_Interface( + library, "pshinter" ); + + FT_TRACE2(( "CFF driver\n" )); + + /* create input stream from resource */ + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + + /* check whether we have a valid OpenType file */ + error = sfnt->init_face( stream, face, face_index, num_params, params ); + if ( !error ) + { + if ( face->format_tag != TTAG_OTTO ) /* `OTTO'; OpenType/CFF font */ + { + FT_TRACE2(( " not an OpenType/CFF font\n" )); + error = CFF_Err_Unknown_File_Format; + goto Exit; + } + + /* if we are performing a simple font format check, exit immediately */ + if ( face_index < 0 ) + return CFF_Err_Ok; + + /* UNDOCUMENTED! A CFF in an SFNT can have only a single font. */ + if ( face_index > 0 ) + { + FT_ERROR(( "cff_face_init: invalid face index\n" )); + error = CFF_Err_Invalid_Argument; + goto Exit; + } + + sfnt_format = 1; + + /* now, the font can be either an OpenType/CFF font, or an SVG CEF */ + /* font; in the latter case it doesn't have a `head' table */ + error = face->goto_table( face, TTAG_head, stream, 0 ); + if ( !error ) + { + pure_cff = 0; + + /* load font directory */ + error = sfnt->load_face( stream, face, 0, num_params, params ); + if ( error ) + goto Exit; + } + else + { + /* load the `cmap' table explicitly */ + error = sfnt->load_cmap( face, stream ); + if ( error ) + goto Exit; + + /* XXX: we don't load the GPOS table, as OpenType Layout */ + /* support will be added later to a layout library on top of */ + /* FreeType 2 */ + } + + /* now load the CFF part of the file */ + error = face->goto_table( face, TTAG_CFF, stream, 0 ); + if ( error ) + goto Exit; + } + else + { + /* rewind to start of file; we are going to load a pure-CFF font */ + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + error = CFF_Err_Ok; + } + + /* now load and parse the CFF table in the file */ + { + CFF_Font cff = NULL; + CFF_FontRecDict dict; + FT_Memory memory = cffface->memory; + FT_Int32 flags; + FT_UInt i; + + + if ( FT_NEW( cff ) ) + goto Exit; + + face->extra.data = cff; + error = cff_font_load( library, stream, face_index, cff, pure_cff ); + if ( error ) + goto Exit; + + cff->pshinter = pshinter; + cff->psnames = psnames; + + cffface->face_index = face_index; + + /* Complement the root flags with some interesting information. */ + /* Note that this is only necessary for pure CFF and CEF fonts; */ + /* SFNT based fonts use the `name' table instead. */ + + cffface->num_glyphs = cff->num_glyphs; + + dict = &cff->top_font.font_dict; + + /* we need the `PSNames' module for CFF and CEF formats */ + /* which aren't CID-keyed */ + if ( dict->cid_registry == 0xFFFFU && !psnames ) + { + FT_ERROR(( "cff_face_init:" + " cannot open CFF & CEF fonts\n" + " " + " without the `PSNames' module\n" )); + error = CFF_Err_Missing_Module; + goto Exit; + } + +#ifdef FT_DEBUG_LEVEL_TRACE + { + FT_UInt idx; + FT_String* s; + + + FT_TRACE4(( "SIDs\n" )); + + /* dump string index, including default strings for convenience */ + for ( idx = 0; idx < cff->num_strings + 390; idx++ ) + { + s = cff_index_get_sid_string( cff, idx ); + if ( s ) + FT_TRACE4((" %5d %s\n", idx, s )); + } + } +#endif /* FT_DEBUG_LEVEL_TRACE */ + + if ( !dict->has_font_matrix ) + dict->units_per_em = pure_cff ? 1000 : face->root.units_per_EM; + + /* Normalize the font matrix so that `matrix->xx' is 1; the */ + /* scaling is done with `units_per_em' then (at this point, */ + /* it already contains the scaling factor, but without */ + /* normalization of the matrix). */ + /* */ + /* Note that the offsets must be expressed in integer font */ + /* units. */ + + { + FT_Matrix* matrix = &dict->font_matrix; + FT_Vector* offset = &dict->font_offset; + FT_ULong* upm = &dict->units_per_em; + FT_Fixed temp = FT_ABS( matrix->yy ); + + + if ( temp != 0x10000L ) + { + *upm = FT_DivFix( *upm, temp ); + + matrix->xx = FT_DivFix( matrix->xx, temp ); + matrix->yx = FT_DivFix( matrix->yx, temp ); + matrix->xy = FT_DivFix( matrix->xy, temp ); + matrix->yy = FT_DivFix( matrix->yy, temp ); + offset->x = FT_DivFix( offset->x, temp ); + offset->y = FT_DivFix( offset->y, temp ); + } + + offset->x >>= 16; + offset->y >>= 16; + } + + for ( i = cff->num_subfonts; i > 0; i-- ) + { + CFF_FontRecDict sub = &cff->subfonts[i - 1]->font_dict; + CFF_FontRecDict top = &cff->top_font.font_dict; + + FT_Matrix* matrix; + FT_Vector* offset; + FT_ULong* upm; + FT_Fixed temp; + + + if ( sub->has_font_matrix ) + { + FT_Long scaling; + + + /* if we have a top-level matrix, */ + /* concatenate the subfont matrix */ + + if ( top->has_font_matrix ) + { + if ( top->units_per_em > 1 && sub->units_per_em > 1 ) + scaling = FT_MIN( top->units_per_em, sub->units_per_em ); + else + scaling = 1; + + FT_Matrix_Multiply_Scaled( &top->font_matrix, + &sub->font_matrix, + scaling ); + FT_Vector_Transform_Scaled( &sub->font_offset, + &top->font_matrix, + scaling ); + + sub->units_per_em = FT_MulDiv( sub->units_per_em, + top->units_per_em, + scaling ); + } + } + else + { + sub->font_matrix = top->font_matrix; + sub->font_offset = top->font_offset; + + sub->units_per_em = top->units_per_em; + } + + matrix = &sub->font_matrix; + offset = &sub->font_offset; + upm = &sub->units_per_em; + temp = FT_ABS( matrix->yy ); + + if ( temp != 0x10000L ) + { + *upm = FT_DivFix( *upm, temp ); + + matrix->xx = FT_DivFix( matrix->xx, temp ); + matrix->yx = FT_DivFix( matrix->yx, temp ); + matrix->xy = FT_DivFix( matrix->xy, temp ); + matrix->yy = FT_DivFix( matrix->yy, temp ); + offset->x = FT_DivFix( offset->x, temp ); + offset->y = FT_DivFix( offset->y, temp ); + } + + offset->x >>= 16; + offset->y >>= 16; + } + + if ( pure_cff ) + { + char* style_name = NULL; + + + /* set up num_faces */ + cffface->num_faces = cff->num_faces; + + /* compute number of glyphs */ + if ( dict->cid_registry != 0xFFFFU ) + cffface->num_glyphs = cff->charset.max_cid + 1; + else + cffface->num_glyphs = cff->charstrings_index.count; + + /* set global bbox, as well as EM size */ + cffface->bbox.xMin = dict->font_bbox.xMin >> 16; + cffface->bbox.yMin = dict->font_bbox.yMin >> 16; + /* no `U' suffix here to 0xFFFF! */ + cffface->bbox.xMax = ( dict->font_bbox.xMax + 0xFFFF ) >> 16; + cffface->bbox.yMax = ( dict->font_bbox.yMax + 0xFFFF ) >> 16; + + cffface->units_per_EM = (FT_UShort)( dict->units_per_em ); + + cffface->ascender = (FT_Short)( cffface->bbox.yMax ); + cffface->descender = (FT_Short)( cffface->bbox.yMin ); + + cffface->height = (FT_Short)( ( cffface->units_per_EM * 12 ) / 10 ); + if ( cffface->height < cffface->ascender - cffface->descender ) + cffface->height = (FT_Short)( cffface->ascender - cffface->descender ); + + cffface->underline_position = + (FT_Short)( dict->underline_position >> 16 ); + cffface->underline_thickness = + (FT_Short)( dict->underline_thickness >> 16 ); + + /* retrieve font family & style name */ + cffface->family_name = cff_index_get_name( cff, face_index ); + if ( cffface->family_name ) + { + char* full = cff_index_get_sid_string( cff, + dict->full_name ); + char* fullp = full; + char* family = cffface->family_name; + char* family_name = NULL; + + + remove_subset_prefix( cffface->family_name ); + + if ( dict->family_name ) + { + family_name = cff_index_get_sid_string( cff, + dict->family_name ); + if ( family_name ) + family = family_name; + } + + /* We try to extract the style name from the full name. */ + /* We need to ignore spaces and dashes during the search. */ + if ( full && family ) + { + while ( *fullp ) + { + /* skip common characters at the start of both strings */ + if ( *fullp == *family ) + { + family++; + fullp++; + continue; + } + + /* ignore spaces and dashes in full name during comparison */ + if ( *fullp == ' ' || *fullp == '-' ) + { + fullp++; + continue; + } + + /* ignore spaces and dashes in family name during comparison */ + if ( *family == ' ' || *family == '-' ) + { + family++; + continue; + } + + if ( !*family && *fullp ) + { + /* The full name begins with the same characters as the */ + /* family name, with spaces and dashes removed. In this */ + /* case, the remaining string in `fullp' will be used as */ + /* the style name. */ + style_name = cff_strcpy( memory, fullp ); + + /* remove the style part from the family name (if present) */ + remove_style( cffface->family_name, style_name ); + } + break; + } + } + } + else + { + char *cid_font_name = + cff_index_get_sid_string( cff, + dict->cid_font_name ); + + + /* do we have a `/FontName' for a CID-keyed font? */ + if ( cid_font_name ) + cffface->family_name = cff_strcpy( memory, cid_font_name ); + } + + if ( style_name ) + cffface->style_name = style_name; + else + /* assume "Regular" style if we don't know better */ + cffface->style_name = cff_strcpy( memory, (char *)"Regular" ); + + /*******************************************************************/ + /* */ + /* Compute face flags. */ + /* */ + flags = FT_FACE_FLAG_SCALABLE | /* scalable outlines */ + FT_FACE_FLAG_HORIZONTAL | /* horizontal data */ + FT_FACE_FLAG_HINTER; /* has native hinter */ + + if ( sfnt_format ) + flags |= FT_FACE_FLAG_SFNT; + + /* fixed width font? */ + if ( dict->is_fixed_pitch ) + flags |= FT_FACE_FLAG_FIXED_WIDTH; + + /* XXX: WE DO NOT SUPPORT KERNING METRICS IN THE GPOS TABLE FOR NOW */ +#if 0 + /* kerning available? */ + if ( face->kern_pairs ) + flags |= FT_FACE_FLAG_KERNING; +#endif + + cffface->face_flags = flags; + + /*******************************************************************/ + /* */ + /* Compute style flags. */ + /* */ + flags = 0; + + if ( dict->italic_angle ) + flags |= FT_STYLE_FLAG_ITALIC; + + { + char *weight = cff_index_get_sid_string( cff, + dict->weight ); + + + if ( weight ) + if ( !ft_strcmp( weight, "Bold" ) || + !ft_strcmp( weight, "Black" ) ) + flags |= FT_STYLE_FLAG_BOLD; + } + + /* double check */ + if ( !(flags & FT_STYLE_FLAG_BOLD) && cffface->style_name ) + if ( !ft_strncmp( cffface->style_name, "Bold", 4 ) || + !ft_strncmp( cffface->style_name, "Black", 5 ) ) + flags |= FT_STYLE_FLAG_BOLD; + + cffface->style_flags = flags; + } + + +#ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES + /* CID-keyed CFF fonts don't have glyph names -- the SFNT loader */ + /* has unset this flag because of the 3.0 `post' table. */ + if ( dict->cid_registry == 0xFFFFU ) + cffface->face_flags |= FT_FACE_FLAG_GLYPH_NAMES; +#endif + + if ( dict->cid_registry != 0xFFFFU && pure_cff ) + cffface->face_flags |= FT_FACE_FLAG_CID_KEYED; + + + /*******************************************************************/ + /* */ + /* Compute char maps. */ + /* */ + + /* Try to synthesize a Unicode charmap if there is none available */ + /* already. If an OpenType font contains a Unicode "cmap", we */ + /* will use it, whatever be in the CFF part of the file. */ + { + FT_CharMapRec cmaprec; + FT_CharMap cmap; + FT_UInt nn; + CFF_Encoding encoding = &cff->encoding; + + + for ( nn = 0; nn < (FT_UInt)cffface->num_charmaps; nn++ ) + { + cmap = cffface->charmaps[nn]; + + /* Windows Unicode? */ + if ( cmap->platform_id == TT_PLATFORM_MICROSOFT && + cmap->encoding_id == TT_MS_ID_UNICODE_CS ) + goto Skip_Unicode; + + /* Apple Unicode platform id? */ + if ( cmap->platform_id == TT_PLATFORM_APPLE_UNICODE ) + goto Skip_Unicode; /* Apple Unicode */ + } + + /* since CID-keyed fonts don't contain glyph names, we can't */ + /* construct a cmap */ + if ( pure_cff && cff->top_font.font_dict.cid_registry != 0xFFFFU ) + goto Exit; + +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( nn + 1 > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "cff_face_init: no Unicode cmap is found, " + "and too many subtables (%d) to add synthesized cmap\n", + nn )); + goto Exit; + } +#endif + + /* we didn't find a Unicode charmap -- synthesize one */ + cmaprec.face = cffface; + cmaprec.platform_id = TT_PLATFORM_MICROSOFT; + cmaprec.encoding_id = TT_MS_ID_UNICODE_CS; + cmaprec.encoding = FT_ENCODING_UNICODE; + + nn = (FT_UInt)cffface->num_charmaps; + + error = FT_CMap_New( &FT_CFF_CMAP_UNICODE_CLASS_REC_GET, NULL, + &cmaprec, NULL ); + if ( error && FT_Err_No_Unicode_Glyph_Name != error ) + goto Exit; + error = FT_Err_Ok; + + /* if no Unicode charmap was previously selected, select this one */ + if ( cffface->charmap == NULL && nn != (FT_UInt)cffface->num_charmaps ) + cffface->charmap = cffface->charmaps[nn]; + + Skip_Unicode: +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( nn > FT_MAX_CHARMAP_CACHEABLE ) + { + FT_ERROR(( "cff_face_init: Unicode cmap is found, " + "but too many preceding subtables (%d) to access\n", + nn - 1 )); + goto Exit; + } +#endif + if ( encoding->count > 0 ) + { + FT_CMap_Class clazz; + + + cmaprec.face = cffface; + cmaprec.platform_id = TT_PLATFORM_ADOBE; /* Adobe platform id */ + + if ( encoding->offset == 0 ) + { + cmaprec.encoding_id = TT_ADOBE_ID_STANDARD; + cmaprec.encoding = FT_ENCODING_ADOBE_STANDARD; + clazz = &FT_CFF_CMAP_ENCODING_CLASS_REC_GET; + } + else if ( encoding->offset == 1 ) + { + cmaprec.encoding_id = TT_ADOBE_ID_EXPERT; + cmaprec.encoding = FT_ENCODING_ADOBE_EXPERT; + clazz = &FT_CFF_CMAP_ENCODING_CLASS_REC_GET; + } + else + { + cmaprec.encoding_id = TT_ADOBE_ID_CUSTOM; + cmaprec.encoding = FT_ENCODING_ADOBE_CUSTOM; + clazz = &FT_CFF_CMAP_ENCODING_CLASS_REC_GET; + } + + error = FT_CMap_New( clazz, NULL, &cmaprec, NULL ); + } + } + } + + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + cff_face_done( FT_Face cffface ) /* CFF_Face */ + { + CFF_Face face = (CFF_Face)cffface; + FT_Memory memory; + SFNT_Service sfnt; + + + if ( !face ) + return; + + memory = cffface->memory; + sfnt = (SFNT_Service)face->sfnt; + + if ( sfnt ) + sfnt->done_face( face ); + + { + CFF_Font cff = (CFF_Font)face->extra.data; + + + if ( cff ) + { + cff_font_done( cff ); + FT_FREE( face->extra.data ); + } + } + } + + + FT_LOCAL_DEF( FT_Error ) + cff_driver_init( FT_Module module ) + { + FT_UNUSED( module ); + + return CFF_Err_Ok; + } + + + FT_LOCAL_DEF( void ) + cff_driver_done( FT_Module module ) + { + FT_UNUSED( module ); + } + + +/* END */ diff --git a/src/cff/cffobjs.h b/src/cff/cffobjs.h new file mode 100644 index 0000000..3c81cee --- /dev/null +++ b/src/cff/cffobjs.h @@ -0,0 +1,181 @@ +/***************************************************************************/ +/* */ +/* cffobjs.h */ +/* */ +/* OpenType objects manager (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFOBJS_H__ +#define __CFFOBJS_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include "cfftypes.h" +#include FT_INTERNAL_TRUETYPE_TYPES_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CFF_Driver */ + /* */ + /* <Description> */ + /* A handle to an OpenType driver object. */ + /* */ + typedef struct CFF_DriverRec_* CFF_Driver; + + typedef TT_Face CFF_Face; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CFF_Size */ + /* */ + /* <Description> */ + /* A handle to an OpenType size object. */ + /* */ + typedef struct CFF_SizeRec_ + { + FT_SizeRec root; + FT_ULong strike_index; /* 0xFFFFFFFF to indicate invalid */ + + } CFF_SizeRec, *CFF_Size; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CFF_GlyphSlot */ + /* */ + /* <Description> */ + /* A handle to an OpenType glyph slot object. */ + /* */ + typedef struct CFF_GlyphSlotRec_ + { + FT_GlyphSlotRec root; + + FT_Bool hint; + FT_Bool scaled; + + FT_Fixed x_scale; + FT_Fixed y_scale; + + } CFF_GlyphSlotRec, *CFF_GlyphSlot; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CFF_Internal */ + /* */ + /* <Description> */ + /* The interface to the `internal' field of `FT_Size'. */ + /* */ + typedef struct CFF_InternalRec_ + { + PSH_Globals topfont; + PSH_Globals subfonts[CFF_MAX_CID_FONTS]; + + } CFF_InternalRec, *CFF_Internal; + + + /*************************************************************************/ + /* */ + /* Subglyph transformation record. */ + /* */ + typedef struct CFF_Transform_ + { + FT_Fixed xx, xy; /* transformation matrix coefficients */ + FT_Fixed yx, yy; + FT_F26Dot6 ox, oy; /* offsets */ + + } CFF_Transform; + + + /***********************************************************************/ + /* */ + /* TrueType driver class. */ + /* */ + typedef struct CFF_DriverRec_ + { + FT_DriverRec root; + void* extension_component; + + } CFF_DriverRec; + + + FT_LOCAL( FT_Error ) + cff_size_init( FT_Size size ); /* CFF_Size */ + + FT_LOCAL( void ) + cff_size_done( FT_Size size ); /* CFF_Size */ + + FT_LOCAL( FT_Error ) + cff_size_request( FT_Size size, + FT_Size_Request req ); + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + FT_LOCAL( FT_Error ) + cff_size_select( FT_Size size, + FT_ULong strike_index ); + +#endif + + FT_LOCAL( void ) + cff_slot_done( FT_GlyphSlot slot ); + + FT_LOCAL( FT_Error ) + cff_slot_init( FT_GlyphSlot slot ); + + + /*************************************************************************/ + /* */ + /* Face functions */ + /* */ + FT_LOCAL( FT_Error ) + cff_face_init( FT_Stream stream, + FT_Face face, /* CFF_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( void ) + cff_face_done( FT_Face face ); /* CFF_Face */ + + + /*************************************************************************/ + /* */ + /* Driver functions */ + /* */ + FT_LOCAL( FT_Error ) + cff_driver_init( FT_Module module ); + + FT_LOCAL( void ) + cff_driver_done( FT_Module module ); + + +FT_END_HEADER + +#endif /* __CFFOBJS_H__ */ + + +/* END */ diff --git a/src/cff/cffparse.c b/src/cff/cffparse.c new file mode 100644 index 0000000..61fa87c --- /dev/null +++ b/src/cff/cffparse.c @@ -0,0 +1,1112 @@ +/***************************************************************************/ +/* */ +/* cffparse.c */ +/* */ +/* CFF token stream parser (body) */ +/* */ +/* Copyright 1996-2004, 2007-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include "cffparse.h" +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H + +#include "cfferrs.h" +#include "cffpic.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cffparse + + + FT_LOCAL_DEF( void ) + cff_parser_init( CFF_Parser parser, + FT_UInt code, + void* object, + FT_Library library) + { + FT_MEM_ZERO( parser, sizeof ( *parser ) ); + + parser->top = parser->stack; + parser->object_code = code; + parser->object = object; + parser->library = library; + } + + + /* read an integer */ + static FT_Long + cff_parse_integer( FT_Byte* start, + FT_Byte* limit ) + { + FT_Byte* p = start; + FT_Int v = *p++; + FT_Long val = 0; + + + if ( v == 28 ) + { + if ( p + 2 > limit ) + goto Bad; + + val = (FT_Short)( ( (FT_Int)p[0] << 8 ) | p[1] ); + p += 2; + } + else if ( v == 29 ) + { + if ( p + 4 > limit ) + goto Bad; + + val = ( (FT_Long)p[0] << 24 ) | + ( (FT_Long)p[1] << 16 ) | + ( (FT_Long)p[2] << 8 ) | + p[3]; + p += 4; + } + else if ( v < 247 ) + { + val = v - 139; + } + else if ( v < 251 ) + { + if ( p + 1 > limit ) + goto Bad; + + val = ( v - 247 ) * 256 + p[0] + 108; + p++; + } + else + { + if ( p + 1 > limit ) + goto Bad; + + val = -( v - 251 ) * 256 - p[0] - 108; + p++; + } + + Exit: + return val; + + Bad: + val = 0; + goto Exit; + } + + + static const FT_Long power_tens[] = + { + 1L, + 10L, + 100L, + 1000L, + 10000L, + 100000L, + 1000000L, + 10000000L, + 100000000L, + 1000000000L + }; + + + /* read a real */ + static FT_Fixed + cff_parse_real( FT_Byte* start, + FT_Byte* limit, + FT_Long power_ten, + FT_Long* scaling ) + { + FT_Byte* p = start; + FT_UInt nib; + FT_UInt phase; + + FT_Long result, number, exponent; + FT_Int sign = 0, exponent_sign = 0; + FT_Long exponent_add, integer_length, fraction_length; + + + if ( scaling ) + *scaling = 0; + + result = 0; + + number = 0; + exponent = 0; + + exponent_add = 0; + integer_length = 0; + fraction_length = 0; + + /* First of all, read the integer part. */ + phase = 4; + + for (;;) + { + /* If we entered this iteration with phase == 4, we need to */ + /* read a new byte. This also skips past the initial 0x1E. */ + if ( phase ) + { + p++; + + /* Make sure we don't read past the end. */ + if ( p >= limit ) + goto Exit; + } + + /* Get the nibble. */ + nib = ( p[0] >> phase ) & 0xF; + phase = 4 - phase; + + if ( nib == 0xE ) + sign = 1; + else if ( nib > 9 ) + break; + else + { + /* Increase exponent if we can't add the digit. */ + if ( number >= 0xCCCCCCCL ) + exponent_add++; + /* Skip leading zeros. */ + else if ( nib || number ) + { + integer_length++; + number = number * 10 + nib; + } + } + } + + /* Read fraction part, if any. */ + if ( nib == 0xa ) + for (;;) + { + /* If we entered this iteration with phase == 4, we need */ + /* to read a new byte. */ + if ( phase ) + { + p++; + + /* Make sure we don't read past the end. */ + if ( p >= limit ) + goto Exit; + } + + /* Get the nibble. */ + nib = ( p[0] >> phase ) & 0xF; + phase = 4 - phase; + if ( nib >= 10 ) + break; + + /* Skip leading zeros if possible. */ + if ( !nib && !number ) + exponent_add--; + /* Only add digit if we don't overflow. */ + else if ( number < 0xCCCCCCCL && fraction_length < 9 ) + { + fraction_length++; + number = number * 10 + nib; + } + } + + /* Read exponent, if any. */ + if ( nib == 12 ) + { + exponent_sign = 1; + nib = 11; + } + + if ( nib == 11 ) + { + for (;;) + { + /* If we entered this iteration with phase == 4, */ + /* we need to read a new byte. */ + if ( phase ) + { + p++; + + /* Make sure we don't read past the end. */ + if ( p >= limit ) + goto Exit; + } + + /* Get the nibble. */ + nib = ( p[0] >> phase ) & 0xF; + phase = 4 - phase; + if ( nib >= 10 ) + break; + + exponent = exponent * 10 + nib; + + /* Arbitrarily limit exponent. */ + if ( exponent > 1000 ) + goto Exit; + } + + if ( exponent_sign ) + exponent = -exponent; + } + + /* We don't check `power_ten' and `exponent_add'. */ + exponent += power_ten + exponent_add; + + if ( scaling ) + { + /* Only use `fraction_length'. */ + fraction_length += integer_length; + exponent += integer_length; + + if ( fraction_length <= 5 ) + { + if ( number > 0x7FFFL ) + { + result = FT_DivFix( number, 10 ); + *scaling = exponent - fraction_length + 1; + } + else + { + if ( exponent > 0 ) + { + FT_Long new_fraction_length, shift; + + + /* Make `scaling' as small as possible. */ + new_fraction_length = FT_MIN( exponent, 5 ); + exponent -= new_fraction_length; + shift = new_fraction_length - fraction_length; + + number *= power_tens[shift]; + if ( number > 0x7FFFL ) + { + number /= 10; + exponent += 1; + } + } + else + exponent -= fraction_length; + + result = number << 16; + *scaling = exponent; + } + } + else + { + if ( ( number / power_tens[fraction_length - 5] ) > 0x7FFFL ) + { + result = FT_DivFix( number, power_tens[fraction_length - 4] ); + *scaling = exponent - 4; + } + else + { + result = FT_DivFix( number, power_tens[fraction_length - 5] ); + *scaling = exponent - 5; + } + } + } + else + { + integer_length += exponent; + fraction_length -= exponent; + + /* Check for overflow and underflow. */ + if ( FT_ABS( integer_length ) > 5 ) + goto Exit; + + /* Remove non-significant digits. */ + if ( integer_length < 0 ) + { + number /= power_tens[-integer_length]; + fraction_length += integer_length; + } + + /* this can only happen if exponent was non-zero */ + if ( fraction_length == 10 ) + { + number /= 10; + fraction_length -= 1; + } + + /* Convert into 16.16 format. */ + if ( fraction_length > 0 ) + { + if ( ( number / power_tens[fraction_length] ) > 0x7FFFL ) + goto Exit; + + result = FT_DivFix( number, power_tens[fraction_length] ); + } + else + { + number *= power_tens[-fraction_length]; + + if ( number > 0x7FFFL ) + goto Exit; + + result = number << 16; + } + } + + if ( sign ) + result = -result; + + Exit: + return result; + } + + + /* read a number, either integer or real */ + static FT_Long + cff_parse_num( FT_Byte** d ) + { + return **d == 30 ? ( cff_parse_real( d[0], d[1], 0, NULL ) >> 16 ) + : cff_parse_integer( d[0], d[1] ); + } + + + /* read a floating point number, either integer or real */ + static FT_Fixed + cff_parse_fixed( FT_Byte** d ) + { + return **d == 30 ? cff_parse_real( d[0], d[1], 0, NULL ) + : cff_parse_integer( d[0], d[1] ) << 16; + } + + + /* read a floating point number, either integer or real, */ + /* but return `10^scaling' times the number read in */ + static FT_Fixed + cff_parse_fixed_scaled( FT_Byte** d, + FT_Long scaling ) + { + return **d == 30 ? cff_parse_real( d[0], d[1], scaling, NULL ) + : ( cff_parse_integer( d[0], d[1] ) * + power_tens[scaling] ) << 16; + } + + + /* read a floating point number, either integer or real, */ + /* and return it as precise as possible -- `scaling' returns */ + /* the scaling factor (as a power of 10) */ + static FT_Fixed + cff_parse_fixed_dynamic( FT_Byte** d, + FT_Long* scaling ) + { + FT_ASSERT( scaling ); + + if ( **d == 30 ) + return cff_parse_real( d[0], d[1], 0, scaling ); + else + { + FT_Long number; + FT_Int integer_length; + + + number = cff_parse_integer( d[0], d[1] ); + + if ( number > 0x7FFFL ) + { + for ( integer_length = 5; integer_length < 10; integer_length++ ) + if ( number < power_tens[integer_length] ) + break; + + if ( ( number / power_tens[integer_length - 5] ) > 0x7FFFL ) + { + *scaling = integer_length - 4; + return FT_DivFix( number, power_tens[integer_length - 4] ); + } + else + { + *scaling = integer_length - 5; + return FT_DivFix( number, power_tens[integer_length - 5] ); + } + } + else + { + *scaling = 0; + return number << 16; + } + } + } + + + static FT_Error + cff_parse_font_matrix( CFF_Parser parser ) + { + CFF_FontRecDict dict = (CFF_FontRecDict)parser->object; + FT_Matrix* matrix = &dict->font_matrix; + FT_Vector* offset = &dict->font_offset; + FT_ULong* upm = &dict->units_per_em; + FT_Byte** data = parser->stack; + FT_Error error = CFF_Err_Stack_Underflow; + + + if ( parser->top >= parser->stack + 6 ) + { + FT_Long scaling; + + + error = CFF_Err_Ok; + + dict->has_font_matrix = TRUE; + + /* We expect a well-formed font matrix, this is, the matrix elements */ + /* `xx' and `yy' are of approximately the same magnitude. To avoid */ + /* loss of precision, we use the magnitude of element `xx' to scale */ + /* all other elements. The scaling factor is then contained in the */ + /* `units_per_em' value. */ + + matrix->xx = cff_parse_fixed_dynamic( data++, &scaling ); + + scaling = -scaling; + + if ( scaling < 0 || scaling > 9 ) + { + /* Return default matrix in case of unlikely values. */ + + FT_TRACE1(( "cff_parse_font_matrix:" + " strange scaling value for xx element (%d),\n" + " " + " using default matrix\n", scaling )); + + matrix->xx = 0x10000L; + matrix->yx = 0; + matrix->xy = 0; + matrix->yy = 0x10000L; + offset->x = 0; + offset->y = 0; + *upm = 1; + + goto Exit; + } + + matrix->yx = cff_parse_fixed_scaled( data++, scaling ); + matrix->xy = cff_parse_fixed_scaled( data++, scaling ); + matrix->yy = cff_parse_fixed_scaled( data++, scaling ); + offset->x = cff_parse_fixed_scaled( data++, scaling ); + offset->y = cff_parse_fixed_scaled( data, scaling ); + + *upm = power_tens[scaling]; + + FT_TRACE4(( " [%f %f %f %f %f %f]\n", + (double)matrix->xx / *upm / 65536, + (double)matrix->xy / *upm / 65536, + (double)matrix->yx / *upm / 65536, + (double)matrix->yy / *upm / 65536, + (double)offset->x / *upm / 65536, + (double)offset->y / *upm / 65536 )); + } + + Exit: + return error; + } + + + static FT_Error + cff_parse_font_bbox( CFF_Parser parser ) + { + CFF_FontRecDict dict = (CFF_FontRecDict)parser->object; + FT_BBox* bbox = &dict->font_bbox; + FT_Byte** data = parser->stack; + FT_Error error; + + + error = CFF_Err_Stack_Underflow; + + if ( parser->top >= parser->stack + 4 ) + { + bbox->xMin = FT_RoundFix( cff_parse_fixed( data++ ) ); + bbox->yMin = FT_RoundFix( cff_parse_fixed( data++ ) ); + bbox->xMax = FT_RoundFix( cff_parse_fixed( data++ ) ); + bbox->yMax = FT_RoundFix( cff_parse_fixed( data ) ); + error = CFF_Err_Ok; + + FT_TRACE4(( " [%d %d %d %d]\n", + bbox->xMin / 65536, + bbox->yMin / 65536, + bbox->xMax / 65536, + bbox->yMax / 65536 )); + } + + return error; + } + + + static FT_Error + cff_parse_private_dict( CFF_Parser parser ) + { + CFF_FontRecDict dict = (CFF_FontRecDict)parser->object; + FT_Byte** data = parser->stack; + FT_Error error; + + + error = CFF_Err_Stack_Underflow; + + if ( parser->top >= parser->stack + 2 ) + { + dict->private_size = cff_parse_num( data++ ); + dict->private_offset = cff_parse_num( data ); + FT_TRACE4(( " %lu %lu\n", + dict->private_size, dict->private_offset )); + + error = CFF_Err_Ok; + } + + return error; + } + + + static FT_Error + cff_parse_cid_ros( CFF_Parser parser ) + { + CFF_FontRecDict dict = (CFF_FontRecDict)parser->object; + FT_Byte** data = parser->stack; + FT_Error error; + + + error = CFF_Err_Stack_Underflow; + + if ( parser->top >= parser->stack + 3 ) + { + dict->cid_registry = (FT_UInt)cff_parse_num( data++ ); + dict->cid_ordering = (FT_UInt)cff_parse_num( data++ ); + if ( **data == 30 ) + FT_TRACE1(( "cff_parse_cid_ros: real supplement is rounded\n" )); + dict->cid_supplement = cff_parse_num( data ); + if ( dict->cid_supplement < 0 ) + FT_TRACE1(( "cff_parse_cid_ros: negative supplement %d is found\n", + dict->cid_supplement )); + error = CFF_Err_Ok; + + FT_TRACE4(( " %d %d %d\n", + dict->cid_registry, + dict->cid_ordering, + dict->cid_supplement )); + } + + return error; + } + + +#define CFF_FIELD_NUM( code, name, id ) \ + CFF_FIELD( code, name, id, cff_kind_num ) +#define CFF_FIELD_FIXED( code, name, id ) \ + CFF_FIELD( code, name, id, cff_kind_fixed ) +#define CFF_FIELD_FIXED_1000( code, name, id ) \ + CFF_FIELD( code, name, id, cff_kind_fixed_thousand ) +#define CFF_FIELD_STRING( code, name, id ) \ + CFF_FIELD( code, name, id, cff_kind_string ) +#define CFF_FIELD_BOOL( code, name, id ) \ + CFF_FIELD( code, name, id, cff_kind_bool ) + +#define CFFCODE_TOPDICT 0x1000 +#define CFFCODE_PRIVATE 0x2000 + + +#ifndef FT_CONFIG_OPTION_PIC + + +#undef CFF_FIELD +#undef CFF_FIELD_DELTA + + +#ifndef FT_DEBUG_LEVEL_TRACE + + +#define CFF_FIELD_CALLBACK( code, name, id ) \ + { \ + cff_kind_callback, \ + code | CFFCODE, \ + 0, 0, \ + cff_parse_ ## name, \ + 0, 0 \ + }, + +#define CFF_FIELD( code, name, id, kind ) \ + { \ + kind, \ + code | CFFCODE, \ + FT_FIELD_OFFSET( name ), \ + FT_FIELD_SIZE( name ), \ + 0, 0, 0 \ + }, + +#define CFF_FIELD_DELTA( code, name, max, id ) \ + { \ + cff_kind_delta, \ + code | CFFCODE, \ + FT_FIELD_OFFSET( name ), \ + FT_FIELD_SIZE_DELTA( name ), \ + 0, \ + max, \ + FT_FIELD_OFFSET( num_ ## name ) \ + }, + + static const CFF_Field_Handler cff_field_handlers[] = + { + +#include "cfftoken.h" + + { 0, 0, 0, 0, 0, 0, 0 } + }; + + +#else /* FT_DEBUG_LEVEL_TRACE */ + + + +#define CFF_FIELD_CALLBACK( code, name, id ) \ + { \ + cff_kind_callback, \ + code | CFFCODE, \ + 0, 0, \ + cff_parse_ ## name, \ + 0, 0, \ + id \ + }, + +#define CFF_FIELD( code, name, id, kind ) \ + { \ + kind, \ + code | CFFCODE, \ + FT_FIELD_OFFSET( name ), \ + FT_FIELD_SIZE( name ), \ + 0, 0, 0, \ + id \ + }, + +#define CFF_FIELD_DELTA( code, name, max, id ) \ + { \ + cff_kind_delta, \ + code | CFFCODE, \ + FT_FIELD_OFFSET( name ), \ + FT_FIELD_SIZE_DELTA( name ), \ + 0, \ + max, \ + FT_FIELD_OFFSET( num_ ## name ), \ + id \ + }, + + static const CFF_Field_Handler cff_field_handlers[] = + { + +#include "cfftoken.h" + + { 0, 0, 0, 0, 0, 0, 0, 0 } + }; + + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + +#else /* FT_CONFIG_OPTION_PIC */ + + + void + FT_Destroy_Class_cff_field_handlers( FT_Library library, + CFF_Field_Handler* clazz ) + { + FT_Memory memory = library->memory; + + + if ( clazz ) + FT_FREE( clazz ); + } + + + FT_Error + FT_Create_Class_cff_field_handlers( FT_Library library, + CFF_Field_Handler** output_class ) + { + CFF_Field_Handler* clazz; + FT_Error error; + FT_Memory memory = library->memory; + + int i = 0; + + +#undef CFF_FIELD +#define CFF_FIELD( code, name, id, kind ) i++; +#undef CFF_FIELD_DELTA +#define CFF_FIELD_DELTA( code, name, max, id ) i++; +#undef CFF_FIELD_CALLBACK +#define CFF_FIELD_CALLBACK( code, name, id ) i++; + +#include "cfftoken.h" + + i++; /* { 0, 0, 0, 0, 0, 0, 0 } */ + + if ( FT_ALLOC( clazz, sizeof ( CFF_Field_Handler ) * i ) ) + return error; + + i = 0; + + +#ifndef FT_DEBUG_LEVEL_TRACE + + +#undef CFF_FIELD_CALLBACK +#define CFF_FIELD_CALLBACK( code_, name_, id_ ) \ + clazz[i].kind = cff_kind_callback; \ + clazz[i].code = code_ | CFFCODE; \ + clazz[i].offset = 0; \ + clazz[i].size = 0; \ + clazz[i].reader = cff_parse_ ## name_; \ + clazz[i].array_max = 0; \ + clazz[i].count_offset = 0; \ + i++; + +#undef CFF_FIELD +#define CFF_FIELD( code_, name_, id_, kind_ ) \ + clazz[i].kind = kind_; \ + clazz[i].code = code_ | CFFCODE; \ + clazz[i].offset = FT_FIELD_OFFSET( name_ ); \ + clazz[i].size = FT_FIELD_SIZE( name_ ); \ + clazz[i].reader = 0; \ + clazz[i].array_max = 0; \ + clazz[i].count_offset = 0; \ + i++; \ + +#undef CFF_FIELD_DELTA +#define CFF_FIELD_DELTA( code_, name_, max_, id_ ) \ + clazz[i].kind = cff_kind_delta; \ + clazz[i].code = code_ | CFFCODE; \ + clazz[i].offset = FT_FIELD_OFFSET( name_ ); \ + clazz[i].size = FT_FIELD_SIZE_DELTA( name_ ); \ + clazz[i].reader = 0; \ + clazz[i].array_max = max_; \ + clazz[i].count_offset = FT_FIELD_OFFSET( num_ ## name_ ); \ + i++; + +#include "cfftoken.h" + + clazz[i].kind = 0; + clazz[i].code = 0; + clazz[i].offset = 0; + clazz[i].size = 0; + clazz[i].reader = 0; + clazz[i].array_max = 0; + clazz[i].count_offset = 0; + + +#else /* FT_DEBUG_LEVEL_TRACE */ + + +#undef CFF_FIELD_CALLBACK +#define CFF_FIELD_CALLBACK( code_, name_, id_ ) \ + clazz[i].kind = cff_kind_callback; \ + clazz[i].code = code_ | CFFCODE; \ + clazz[i].offset = 0; \ + clazz[i].size = 0; \ + clazz[i].reader = cff_parse_ ## name_; \ + clazz[i].array_max = 0; \ + clazz[i].count_offset = 0; \ + clazz[i].id = id_; \ + i++; + +#undef CFF_FIELD +#define CFF_FIELD( code_, name_, id_, kind_ ) \ + clazz[i].kind = kind_; \ + clazz[i].code = code_ | CFFCODE; \ + clazz[i].offset = FT_FIELD_OFFSET( name_ ); \ + clazz[i].size = FT_FIELD_SIZE( name_ ); \ + clazz[i].reader = 0; \ + clazz[i].array_max = 0; \ + clazz[i].count_offset = 0; \ + clazz[i].id = id_; \ + i++; \ + +#undef CFF_FIELD_DELTA +#define CFF_FIELD_DELTA( code_, name_, max_, id_ ) \ + clazz[i].kind = cff_kind_delta; \ + clazz[i].code = code_ | CFFCODE; \ + clazz[i].offset = FT_FIELD_OFFSET( name_ ); \ + clazz[i].size = FT_FIELD_SIZE_DELTA( name_ ); \ + clazz[i].reader = 0; \ + clazz[i].array_max = max_; \ + clazz[i].count_offset = FT_FIELD_OFFSET( num_ ## name_ ); \ + clazz[i].id = id_; \ + i++; + +#include "cfftoken.h" + + clazz[i].kind = 0; + clazz[i].code = 0; + clazz[i].offset = 0; + clazz[i].size = 0; + clazz[i].reader = 0; + clazz[i].array_max = 0; + clazz[i].count_offset = 0; + clazz[i].id = 0; + + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + + *output_class = clazz; + + return CFF_Err_Ok; + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + + + FT_LOCAL_DEF( FT_Error ) + cff_parser_run( CFF_Parser parser, + FT_Byte* start, + FT_Byte* limit ) + { + FT_Byte* p = start; + FT_Error error = CFF_Err_Ok; + FT_Library library = parser->library; + FT_UNUSED( library ); + + + parser->top = parser->stack; + parser->start = start; + parser->limit = limit; + parser->cursor = start; + + while ( p < limit ) + { + FT_UInt v = *p; + + + if ( v >= 27 && v != 31 ) + { + /* it's a number; we will push its position on the stack */ + if ( parser->top - parser->stack >= CFF_MAX_STACK_DEPTH ) + goto Stack_Overflow; + + *parser->top ++ = p; + + /* now, skip it */ + if ( v == 30 ) + { + /* skip real number */ + p++; + for (;;) + { + /* An unterminated floating point number at the */ + /* end of a dictionary is invalid but harmless. */ + if ( p >= limit ) + goto Exit; + v = p[0] >> 4; + if ( v == 15 ) + break; + v = p[0] & 0xF; + if ( v == 15 ) + break; + p++; + } + } + else if ( v == 28 ) + p += 2; + else if ( v == 29 ) + p += 4; + else if ( v > 246 ) + p += 1; + } + else + { + /* This is not a number, hence it's an operator. Compute its code */ + /* and look for it in our current list. */ + + FT_UInt code; + FT_UInt num_args = (FT_UInt) + ( parser->top - parser->stack ); + const CFF_Field_Handler* field; + + + *parser->top = p; + code = v; + if ( v == 12 ) + { + /* two byte operator */ + p++; + if ( p >= limit ) + goto Syntax_Error; + + code = 0x100 | p[0]; + } + code = code | parser->object_code; + + for ( field = FT_CFF_FIELD_HANDLERS_GET; field->kind; field++ ) + { + if ( field->code == (FT_Int)code ) + { + /* we found our field's handler; read it */ + FT_Long val; + FT_Byte* q = (FT_Byte*)parser->object + field->offset; + + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_TRACE4(( " %s", field->id )); +#endif + + /* check that we have enough arguments -- except for */ + /* delta encoded arrays, which can be empty */ + if ( field->kind != cff_kind_delta && num_args < 1 ) + goto Stack_Underflow; + + switch ( field->kind ) + { + case cff_kind_bool: + case cff_kind_string: + case cff_kind_num: + val = cff_parse_num( parser->stack ); + goto Store_Number; + + case cff_kind_fixed: + val = cff_parse_fixed( parser->stack ); + goto Store_Number; + + case cff_kind_fixed_thousand: + val = cff_parse_fixed_scaled( parser->stack, 3 ); + + Store_Number: + switch ( field->size ) + { + case (8 / FT_CHAR_BIT): + *(FT_Byte*)q = (FT_Byte)val; + break; + + case (16 / FT_CHAR_BIT): + *(FT_Short*)q = (FT_Short)val; + break; + + case (32 / FT_CHAR_BIT): + *(FT_Int32*)q = (FT_Int)val; + break; + + default: /* for 64-bit systems */ + *(FT_Long*)q = val; + } + +#ifdef FT_DEBUG_LEVEL_TRACE + switch ( field->kind ) + { + case cff_kind_bool: + FT_TRACE4(( " %s\n", val ? "true" : "false" )); + break; + + case cff_kind_string: + FT_TRACE4(( " %ld (SID)\n", val )); + break; + + case cff_kind_num: + FT_TRACE4(( " %ld\n", val )); + break; + + case cff_kind_fixed: + FT_TRACE4(( " %f\n", (double)val / 65536 )); + break; + + case cff_kind_fixed_thousand: + FT_TRACE4(( " %f\n", (double)val / 65536 / 1000 )); + + default: + ; /* never reached */ + } +#endif + + break; + + case cff_kind_delta: + { + FT_Byte* qcount = (FT_Byte*)parser->object + + field->count_offset; + + FT_Byte** data = parser->stack; + + + if ( num_args > field->array_max ) + num_args = field->array_max; + + FT_TRACE4(( " [" )); + + /* store count */ + *qcount = (FT_Byte)num_args; + + val = 0; + while ( num_args > 0 ) + { + val += cff_parse_num( data++ ); + switch ( field->size ) + { + case (8 / FT_CHAR_BIT): + *(FT_Byte*)q = (FT_Byte)val; + break; + + case (16 / FT_CHAR_BIT): + *(FT_Short*)q = (FT_Short)val; + break; + + case (32 / FT_CHAR_BIT): + *(FT_Int32*)q = (FT_Int)val; + break; + + default: /* for 64-bit systems */ + *(FT_Long*)q = val; + } + + FT_TRACE4(( " %ld", val )); + + q += field->size; + num_args--; + } + + FT_TRACE4(( "]\n" )); + } + break; + + default: /* callback */ + error = field->reader( parser ); + if ( error ) + goto Exit; + } + goto Found; + } + } + + /* this is an unknown operator, or it is unsupported; */ + /* we will ignore it for now. */ + + Found: + /* clear stack */ + parser->top = parser->stack; + } + p++; + } + + Exit: + return error; + + Stack_Overflow: + error = CFF_Err_Invalid_Argument; + goto Exit; + + Stack_Underflow: + error = CFF_Err_Invalid_Argument; + goto Exit; + + Syntax_Error: + error = CFF_Err_Invalid_Argument; + goto Exit; + } + + +/* END */ diff --git a/src/cff/cffparse.h b/src/cff/cffparse.h new file mode 100644 index 0000000..61d91ed --- /dev/null +++ b/src/cff/cffparse.h @@ -0,0 +1,106 @@ +/***************************************************************************/ +/* */ +/* cffparse.h */ +/* */ +/* CFF token stream parser (specification) */ +/* */ +/* Copyright 1996-2003, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFF_PARSE_H__ +#define __CFF_PARSE_H__ + + +#include <ft2build.h> +#include "cfftypes.h" +#include FT_INTERNAL_OBJECTS_H + + +FT_BEGIN_HEADER + + +#define CFF_MAX_STACK_DEPTH 96 + +#define CFF_CODE_TOPDICT 0x1000 +#define CFF_CODE_PRIVATE 0x2000 + + + typedef struct CFF_ParserRec_ + { + FT_Library library; + FT_Byte* start; + FT_Byte* limit; + FT_Byte* cursor; + + FT_Byte* stack[CFF_MAX_STACK_DEPTH + 1]; + FT_Byte** top; + + FT_UInt object_code; + void* object; + + } CFF_ParserRec, *CFF_Parser; + + + FT_LOCAL( void ) + cff_parser_init( CFF_Parser parser, + FT_UInt code, + void* object, + FT_Library library); + + FT_LOCAL( FT_Error ) + cff_parser_run( CFF_Parser parser, + FT_Byte* start, + FT_Byte* limit ); + + + enum + { + cff_kind_none = 0, + cff_kind_num, + cff_kind_fixed, + cff_kind_fixed_thousand, + cff_kind_string, + cff_kind_bool, + cff_kind_delta, + cff_kind_callback, + + cff_kind_max /* do not remove */ + }; + + + /* now generate handlers for the most simple fields */ + typedef FT_Error (*CFF_Field_Reader)( CFF_Parser parser ); + + typedef struct CFF_Field_Handler_ + { + int kind; + int code; + FT_UInt offset; + FT_Byte size; + CFF_Field_Reader reader; + FT_UInt array_max; + FT_UInt count_offset; + +#ifdef FT_DEBUG_LEVEL_TRACE + const char* id; +#endif + + } CFF_Field_Handler; + + +FT_END_HEADER + + +#endif /* __CFF_PARSE_H__ */ + + +/* END */ diff --git a/src/cff/cffpic.c b/src/cff/cffpic.c new file mode 100644 index 0000000..1c19d58 --- /dev/null +++ b/src/cff/cffpic.c @@ -0,0 +1,148 @@ +/***************************************************************************/ +/* */ +/* cffpic.c */ +/* */ +/* The FreeType position independent code services for cff module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "cffcmap.h" +#include "cffpic.h" +#include "cfferrs.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from cffdrivr.c */ + FT_Error + FT_Create_Class_cff_services( + FT_Library library, + FT_ServiceDescRec** output_class ); + + void + FT_Destroy_Class_cff_services( + FT_Library library, + FT_ServiceDescRec* clazz ); + + void + FT_Init_Class_cff_service_ps_info( + FT_Library library, + FT_Service_PsInfoRec* clazz ); + + void + FT_Init_Class_cff_service_glyph_dict( + FT_Library library, + FT_Service_GlyphDictRec* clazz ); + + void + FT_Init_Class_cff_service_ps_name( + FT_Library library, + FT_Service_PsFontNameRec* clazz ); + + void + FT_Init_Class_cff_service_get_cmap_info( + FT_Library library, + FT_Service_TTCMapsRec* clazz ); + + void + FT_Init_Class_cff_service_cid_info( + FT_Library library, + FT_Service_CIDRec* clazz ); + + /* forward declaration of PIC init functions from cffparse.c */ + FT_Error + FT_Create_Class_cff_field_handlers( + FT_Library library, + CFF_Field_Handler** output_class ); + + void + FT_Destroy_Class_cff_field_handlers( + FT_Library library, + CFF_Field_Handler* clazz ); + + void + cff_driver_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + + + if ( pic_container->cff ) + { + CffModulePIC* container = ( CffModulePIC* )pic_container->cff; + + + if ( container->cff_services ) + FT_Destroy_Class_cff_services( library, + container->cff_services ); + container->cff_services = NULL; + if ( container->cff_field_handlers ) + FT_Destroy_Class_cff_field_handlers( + library, container->cff_field_handlers ); + container->cff_field_handlers = NULL; + FT_FREE( container ); + pic_container->cff = NULL; + } + } + + + FT_Error + cff_driver_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = CFF_Err_Ok; + CffModulePIC* container; + FT_Memory memory = library->memory; + + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->cff = container; + + /* initialize pointer table - this is how the module usually expects this data */ + error = FT_Create_Class_cff_services( library, + &container->cff_services ); + if ( error ) + goto Exit; + error = FT_Create_Class_cff_field_handlers( + library, &container->cff_field_handlers ); + if ( error ) + goto Exit; + FT_Init_Class_cff_service_ps_info( + library, &container->cff_service_ps_info ); + FT_Init_Class_cff_service_glyph_dict( + library, &container->cff_service_glyph_dict ); + FT_Init_Class_cff_service_ps_name( + library, &container->cff_service_ps_name ); + FT_Init_Class_cff_service_get_cmap_info( + library, &container->cff_service_get_cmap_info ); + FT_Init_Class_cff_service_cid_info( + library, &container->cff_service_cid_info ); + FT_Init_Class_cff_cmap_encoding_class_rec( + library, &container->cff_cmap_encoding_class_rec ); + FT_Init_Class_cff_cmap_unicode_class_rec( + library, &container->cff_cmap_unicode_class_rec ); +Exit: + if ( error ) + cff_driver_class_pic_free( library ); + return error; + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/src/cff/cffpic.h b/src/cff/cffpic.h new file mode 100644 index 0000000..342edd8 --- /dev/null +++ b/src/cff/cffpic.h @@ -0,0 +1,87 @@ +/***************************************************************************/ +/* */ +/* cffpic.h */ +/* */ +/* The FreeType position independent code services for cff module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFPIC_H__ +#define __CFFPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC +#define FT_CFF_SERVICE_PS_INFO_GET cff_service_ps_info +#define FT_CFF_SERVICE_GLYPH_DICT_GET cff_service_glyph_dict +#define FT_CFF_SERVICE_PS_NAME_GET cff_service_ps_name +#define FT_CFF_SERVICE_GET_CMAP_INFO_GET cff_service_get_cmap_info +#define FT_CFF_SERVICE_CID_INFO_GET cff_service_cid_info +#define FT_CFF_SERVICES_GET cff_services +#define FT_CFF_CMAP_ENCODING_CLASS_REC_GET cff_cmap_encoding_class_rec +#define FT_CFF_CMAP_UNICODE_CLASS_REC_GET cff_cmap_unicode_class_rec +#define FT_CFF_FIELD_HANDLERS_GET cff_field_handlers + +#else /* FT_CONFIG_OPTION_PIC */ + +#include FT_SERVICE_GLYPH_DICT_H +#include "cffparse.h" +#include FT_SERVICE_POSTSCRIPT_INFO_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_TT_CMAP_H +#include FT_SERVICE_CID_H + + typedef struct CffModulePIC_ + { + FT_ServiceDescRec* cff_services; + CFF_Field_Handler* cff_field_handlers; + FT_Service_PsInfoRec cff_service_ps_info; + FT_Service_GlyphDictRec cff_service_glyph_dict; + FT_Service_PsFontNameRec cff_service_ps_name; + FT_Service_TTCMapsRec cff_service_get_cmap_info; + FT_Service_CIDRec cff_service_cid_info; + FT_CMap_ClassRec cff_cmap_encoding_class_rec; + FT_CMap_ClassRec cff_cmap_unicode_class_rec; + } CffModulePIC; + +#define GET_PIC(lib) ((CffModulePIC*)((lib)->pic_container.cff)) +#define FT_CFF_SERVICE_PS_INFO_GET (GET_PIC(library)->cff_service_ps_info) +#define FT_CFF_SERVICE_GLYPH_DICT_GET (GET_PIC(library)->cff_service_glyph_dict) +#define FT_CFF_SERVICE_PS_NAME_GET (GET_PIC(library)->cff_service_ps_name) +#define FT_CFF_SERVICE_GET_CMAP_INFO_GET (GET_PIC(library)->cff_service_get_cmap_info) +#define FT_CFF_SERVICE_CID_INFO_GET (GET_PIC(library)->cff_service_cid_info) +#define FT_CFF_SERVICES_GET (GET_PIC(library)->cff_services) +#define FT_CFF_CMAP_ENCODING_CLASS_REC_GET (GET_PIC(library)->cff_cmap_encoding_class_rec) +#define FT_CFF_CMAP_UNICODE_CLASS_REC_GET (GET_PIC(library)->cff_cmap_unicode_class_rec) +#define FT_CFF_FIELD_HANDLERS_GET (GET_PIC(library)->cff_field_handlers) + + /* see cffpic.c for the implementation */ + void + cff_driver_class_pic_free( FT_Library library ); + + FT_Error + cff_driver_class_pic_init( FT_Library library ); + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __CFFPIC_H__ */ + + +/* END */ diff --git a/src/cff/cfftoken.h b/src/cff/cfftoken.h new file mode 100644 index 0000000..bcb4276 --- /dev/null +++ b/src/cff/cfftoken.h @@ -0,0 +1,97 @@ +/***************************************************************************/ +/* */ +/* cfftoken.h */ +/* */ +/* CFF token definitions (specification only). */ +/* */ +/* Copyright 1996-2003, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#undef FT_STRUCTURE +#define FT_STRUCTURE CFF_FontRecDictRec + +#undef CFFCODE +#define CFFCODE CFFCODE_TOPDICT + + CFF_FIELD_STRING ( 0, version, "Version" ) + CFF_FIELD_STRING ( 1, notice, "Notice" ) + CFF_FIELD_STRING ( 0x100, copyright, "Copyright" ) + CFF_FIELD_STRING ( 2, full_name, "FullName" ) + CFF_FIELD_STRING ( 3, family_name, "FamilyName" ) + CFF_FIELD_STRING ( 4, weight, "Weight" ) + CFF_FIELD_BOOL ( 0x101, is_fixed_pitch, "isFixedPitch" ) + CFF_FIELD_FIXED ( 0x102, italic_angle, "ItalicAngle" ) + CFF_FIELD_FIXED ( 0x103, underline_position, "UnderlinePosition" ) + CFF_FIELD_FIXED ( 0x104, underline_thickness, "UnderlineThickness" ) + CFF_FIELD_NUM ( 0x105, paint_type, "PaintType" ) + CFF_FIELD_NUM ( 0x106, charstring_type, "CharstringType" ) + CFF_FIELD_CALLBACK( 0x107, font_matrix, "FontMatrix" ) + CFF_FIELD_NUM ( 13, unique_id, "UniqueID" ) + CFF_FIELD_CALLBACK( 5, font_bbox, "FontBBox" ) + CFF_FIELD_NUM ( 0x108, stroke_width, "StrokeWidth" ) + CFF_FIELD_NUM ( 15, charset_offset, "charset" ) + CFF_FIELD_NUM ( 16, encoding_offset, "Encoding" ) + CFF_FIELD_NUM ( 17, charstrings_offset, "CharStrings" ) + CFF_FIELD_CALLBACK( 18, private_dict, "Private" ) + CFF_FIELD_NUM ( 0x114, synthetic_base, "SyntheticBase" ) + CFF_FIELD_STRING ( 0x115, embedded_postscript, "PostScript" ) + +#if 0 + CFF_FIELD_STRING ( 0x116, base_font_name, "BaseFontName" ) + CFF_FIELD_DELTA ( 0x117, base_font_blend, 16, "BaseFontBlend" ) + CFF_FIELD_CALLBACK( 0x118, multiple_master, "MultipleMaster" ) + CFF_FIELD_CALLBACK( 0x119, blend_axis_types, "BlendAxisTypes" ) +#endif + + CFF_FIELD_CALLBACK( 0x11E, cid_ros, "ROS" ) + CFF_FIELD_NUM ( 0x11F, cid_font_version, "CIDFontVersion" ) + CFF_FIELD_NUM ( 0x120, cid_font_revision, "CIDFontRevision" ) + CFF_FIELD_NUM ( 0x121, cid_font_type, "CIDFontType" ) + CFF_FIELD_NUM ( 0x122, cid_count, "CIDCount" ) + CFF_FIELD_NUM ( 0x123, cid_uid_base, "UIDBase" ) + CFF_FIELD_NUM ( 0x124, cid_fd_array_offset, "FDArray" ) + CFF_FIELD_NUM ( 0x125, cid_fd_select_offset, "FDSelect" ) + CFF_FIELD_STRING ( 0x126, cid_font_name, "FontName" ) + +#if 0 + CFF_FIELD_NUM ( 0x127, chameleon, "Chameleon" ) +#endif + + +#undef FT_STRUCTURE +#define FT_STRUCTURE CFF_PrivateRec +#undef CFFCODE +#define CFFCODE CFFCODE_PRIVATE + + CFF_FIELD_DELTA ( 6, blue_values, 14, "BlueValues" ) + CFF_FIELD_DELTA ( 7, other_blues, 10, "OtherBlues" ) + CFF_FIELD_DELTA ( 8, family_blues, 14, "FamilyBlues" ) + CFF_FIELD_DELTA ( 9, family_other_blues, 10, "FamilyOtherBlues" ) + CFF_FIELD_FIXED_1000( 0x109, blue_scale, "BlueScale" ) + CFF_FIELD_NUM ( 0x10A, blue_shift, "BlueShift" ) + CFF_FIELD_NUM ( 0x10B, blue_fuzz, "BlueFuzz" ) + CFF_FIELD_NUM ( 10, standard_width, "StdHW" ) + CFF_FIELD_NUM ( 11, standard_height, "StdVW" ) + CFF_FIELD_DELTA ( 0x10C, snap_widths, 13, "StemSnapH" ) + CFF_FIELD_DELTA ( 0x10D, snap_heights, 13, "StemSnapV" ) + CFF_FIELD_BOOL ( 0x10E, force_bold, "ForceBold" ) + CFF_FIELD_FIXED ( 0x10F, force_bold_threshold, "ForceBoldThreshold" ) + CFF_FIELD_NUM ( 0x110, lenIV, "lenIV" ) + CFF_FIELD_NUM ( 0x111, language_group, "LanguageGroup" ) + CFF_FIELD_FIXED ( 0x112, expansion_factor, "ExpansionFactor" ) + CFF_FIELD_NUM ( 0x113, initial_random_seed, "initialRandomSeed" ) + CFF_FIELD_NUM ( 19, local_subrs_offset, "Subrs" ) + CFF_FIELD_NUM ( 20, default_width, "defaultWidthX" ) + CFF_FIELD_NUM ( 21, nominal_width, "nominalWidthX" ) + + +/* END */ diff --git a/src/cff/cfftypes.h b/src/cff/cfftypes.h new file mode 100644 index 0000000..7c99036 --- /dev/null +++ b/src/cff/cfftypes.h @@ -0,0 +1,281 @@ +/***************************************************************************/ +/* */ +/* cfftypes.h */ +/* */ +/* Basic OpenType/CFF type definitions and interface (specification */ +/* only). */ +/* */ +/* Copyright 1996-2003, 2006-2008, 2010-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CFFTYPES_H__ +#define __CFFTYPES_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_TYPE1_TABLES_H +#include FT_INTERNAL_SERVICE_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CFF_IndexRec */ + /* */ + /* <Description> */ + /* A structure used to model a CFF Index table. */ + /* */ + /* <Fields> */ + /* stream :: The source input stream. */ + /* */ + /* start :: The position of the first index byte in the */ + /* input stream. */ + /* */ + /* count :: The number of elements in the index. */ + /* */ + /* off_size :: The size in bytes of object offsets in index. */ + /* */ + /* data_offset :: The position of first data byte in the index's */ + /* bytes. */ + /* */ + /* data_size :: The size of the data table in this index. */ + /* */ + /* offsets :: A table of element offsets in the index. Must be */ + /* loaded explicitly. */ + /* */ + /* bytes :: If the index is loaded in memory, its bytes. */ + /* */ + typedef struct CFF_IndexRec_ + { + FT_Stream stream; + FT_ULong start; + FT_UInt count; + FT_Byte off_size; + FT_ULong data_offset; + FT_ULong data_size; + + FT_ULong* offsets; + FT_Byte* bytes; + + } CFF_IndexRec, *CFF_Index; + + + typedef struct CFF_EncodingRec_ + { + FT_UInt format; + FT_ULong offset; + + FT_UInt count; + FT_UShort sids [256]; /* avoid dynamic allocations */ + FT_UShort codes[256]; + + } CFF_EncodingRec, *CFF_Encoding; + + + typedef struct CFF_CharsetRec_ + { + + FT_UInt format; + FT_ULong offset; + + FT_UShort* sids; + FT_UShort* cids; /* the inverse mapping of `sids'; only needed */ + /* for CID-keyed fonts */ + FT_UInt max_cid; + FT_UInt num_glyphs; + + } CFF_CharsetRec, *CFF_Charset; + + + typedef struct CFF_FontRecDictRec_ + { + FT_UInt version; + FT_UInt notice; + FT_UInt copyright; + FT_UInt full_name; + FT_UInt family_name; + FT_UInt weight; + FT_Bool is_fixed_pitch; + FT_Fixed italic_angle; + FT_Fixed underline_position; + FT_Fixed underline_thickness; + FT_Int paint_type; + FT_Int charstring_type; + FT_Matrix font_matrix; + FT_Bool has_font_matrix; + FT_ULong units_per_em; /* temporarily used as scaling value also */ + FT_Vector font_offset; + FT_ULong unique_id; + FT_BBox font_bbox; + FT_Pos stroke_width; + FT_ULong charset_offset; + FT_ULong encoding_offset; + FT_ULong charstrings_offset; + FT_ULong private_offset; + FT_ULong private_size; + FT_Long synthetic_base; + FT_UInt embedded_postscript; + + /* these should only be used for the top-level font dictionary */ + FT_UInt cid_registry; + FT_UInt cid_ordering; + FT_Long cid_supplement; + + FT_Long cid_font_version; + FT_Long cid_font_revision; + FT_Long cid_font_type; + FT_ULong cid_count; + FT_ULong cid_uid_base; + FT_ULong cid_fd_array_offset; + FT_ULong cid_fd_select_offset; + FT_UInt cid_font_name; + + } CFF_FontRecDictRec, *CFF_FontRecDict; + + + typedef struct CFF_PrivateRec_ + { + FT_Byte num_blue_values; + FT_Byte num_other_blues; + FT_Byte num_family_blues; + FT_Byte num_family_other_blues; + + FT_Pos blue_values[14]; + FT_Pos other_blues[10]; + FT_Pos family_blues[14]; + FT_Pos family_other_blues[10]; + + FT_Fixed blue_scale; + FT_Pos blue_shift; + FT_Pos blue_fuzz; + FT_Pos standard_width; + FT_Pos standard_height; + + FT_Byte num_snap_widths; + FT_Byte num_snap_heights; + FT_Pos snap_widths[13]; + FT_Pos snap_heights[13]; + FT_Bool force_bold; + FT_Fixed force_bold_threshold; + FT_Int lenIV; + FT_Int language_group; + FT_Fixed expansion_factor; + FT_Long initial_random_seed; + FT_ULong local_subrs_offset; + FT_Pos default_width; + FT_Pos nominal_width; + + } CFF_PrivateRec, *CFF_Private; + + + typedef struct CFF_FDSelectRec_ + { + FT_Byte format; + FT_UInt range_count; + + /* that's the table, taken from the file `as is' */ + FT_Byte* data; + FT_UInt data_size; + + /* small cache for format 3 only */ + FT_UInt cache_first; + FT_UInt cache_count; + FT_Byte cache_fd; + + } CFF_FDSelectRec, *CFF_FDSelect; + + + /* A SubFont packs a font dict and a private dict together. They are */ + /* needed to support CID-keyed CFF fonts. */ + typedef struct CFF_SubFontRec_ + { + CFF_FontRecDictRec font_dict; + CFF_PrivateRec private_dict; + + CFF_IndexRec local_subrs_index; + FT_Byte** local_subrs; /* array of pointers into Local Subrs INDEX data */ + + } CFF_SubFontRec, *CFF_SubFont; + + +#define CFF_MAX_CID_FONTS 256 + + + typedef struct CFF_FontRec_ + { + FT_Stream stream; + FT_Memory memory; + FT_UInt num_faces; + FT_UInt num_glyphs; + + FT_Byte version_major; + FT_Byte version_minor; + FT_Byte header_size; + FT_Byte absolute_offsize; + + + CFF_IndexRec name_index; + CFF_IndexRec top_dict_index; + CFF_IndexRec global_subrs_index; + + CFF_EncodingRec encoding; + CFF_CharsetRec charset; + + CFF_IndexRec charstrings_index; + CFF_IndexRec font_dict_index; + CFF_IndexRec private_index; + CFF_IndexRec local_subrs_index; + + FT_String* font_name; + + /* array of pointers into Global Subrs INDEX data */ + FT_Byte** global_subrs; + + /* array of pointers into String INDEX data stored at string_pool */ + FT_UInt num_strings; + FT_Byte** strings; + FT_Byte* string_pool; + + CFF_SubFontRec top_font; + FT_UInt num_subfonts; + CFF_SubFont subfonts[CFF_MAX_CID_FONTS]; + + CFF_FDSelectRec fd_select; + + /* interface to PostScript hinter */ + PSHinter_Service pshinter; + + /* interface to Postscript Names service */ + FT_Service_PsCMaps psnames; + + /* since version 2.3.0 */ + PS_FontInfoRec* font_info; /* font info dictionary */ + + /* since version 2.3.6 */ + FT_String* registry; + FT_String* ordering; + + } CFF_FontRec, *CFF_Font; + + +FT_END_HEADER + +#endif /* __CFFTYPES_H__ */ + + +/* END */ diff --git a/src/cff/module.mk b/src/cff/module.mk new file mode 100644 index 0000000..ef1391c --- /dev/null +++ b/src/cff/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 CFF module definition +# + + +# Copyright 1996-2000, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += CFF_DRIVER + +define CFF_DRIVER +$(OPEN_DRIVER) FT_Driver_ClassRec, cff_driver_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)cff $(ECHO_DRIVER_DESC)OpenType fonts with extension *.otf$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/cff/rules.mk b/src/cff/rules.mk new file mode 100644 index 0000000..ca7aa5d --- /dev/null +++ b/src/cff/rules.mk @@ -0,0 +1,73 @@ +# +# FreeType 2 OpenType/CFF driver configuration rules +# + + +# Copyright 1996-2000, 2001, 2003, 2011 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# OpenType driver directory +# +CFF_DIR := $(SRC_DIR)/cff + + +CFF_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(CFF_DIR)) + + +# CFF driver sources (i.e., C files) +# +CFF_DRV_SRC := $(CFF_DIR)/cffcmap.c \ + $(CFF_DIR)/cffdrivr.c \ + $(CFF_DIR)/cffgload.c \ + $(CFF_DIR)/cffload.c \ + $(CFF_DIR)/cffobjs.c \ + $(CFF_DIR)/cffparse.c \ + $(CFF_DIR)/cffpic.c + +# CFF driver headers +# +CFF_DRV_H := $(CFF_DRV_SRC:%.c=%.h) \ + $(CFF_DIR)/cfferrs.h \ + $(CFF_DIR)/cfftoken.h \ + $(CFF_DIR)/cfftypes.h + + +# CFF driver object(s) +# +# CFF_DRV_OBJ_M is used during `multi' builds +# CFF_DRV_OBJ_S is used during `single' builds +# +CFF_DRV_OBJ_M := $(CFF_DRV_SRC:$(CFF_DIR)/%.c=$(OBJ_DIR)/%.$O) +CFF_DRV_OBJ_S := $(OBJ_DIR)/cff.$O + +# CFF driver source file for single build +# +CFF_DRV_SRC_S := $(CFF_DIR)/cff.c + + +# CFF driver - single object +# +$(CFF_DRV_OBJ_S): $(CFF_DRV_SRC_S) $(CFF_DRV_SRC) $(FREETYPE_H) $(CFF_DRV_H) + $(CFF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(CFF_DRV_SRC_S)) + + +# CFF driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(CFF_DIR)/%.c $(FREETYPE_H) $(CFF_DRV_H) + $(CFF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(CFF_DRV_OBJ_S) +DRV_OBJS_M += $(CFF_DRV_OBJ_M) + + +# EOF diff --git a/src/cid/Jamfile b/src/cid/Jamfile new file mode 100644 index 0000000..ebeaed5 --- /dev/null +++ b/src/cid/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/cid Jamfile +# +# Copyright 2001 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) cid ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = cidobjs cidload cidgload cidriver cidparse ; + } + else + { + _sources = type1cid ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/cid Jamfile diff --git a/src/cid/ciderrs.h b/src/cid/ciderrs.h new file mode 100644 index 0000000..ef13155 --- /dev/null +++ b/src/cid/ciderrs.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* ciderrs.h */ +/* */ +/* CID error codes (specification only). */ +/* */ +/* Copyright 2001, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the CID error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __CIDERRS_H__ +#define __CIDERRS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX CID_Err_ +#define FT_ERR_BASE FT_Mod_Err_CID + +#include FT_ERRORS_H + +#endif /* __CIDERRS_H__ */ + + +/* END */ diff --git a/src/cid/cidgload.c b/src/cid/cidgload.c new file mode 100644 index 0000000..bd84023 --- /dev/null +++ b/src/cid/cidgload.c @@ -0,0 +1,442 @@ +/***************************************************************************/ +/* */ +/* cidgload.c */ +/* */ +/* CID-keyed Type1 Glyph Loader (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include "cidload.h" +#include "cidgload.h" +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_OUTLINE_H +#include FT_INTERNAL_CALC_H + +#include "ciderrs.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cidgload + + + FT_CALLBACK_DEF( FT_Error ) + cid_load_glyph( T1_Decoder decoder, + FT_UInt glyph_index ) + { + CID_Face face = (CID_Face)decoder->builder.face; + CID_FaceInfo cid = &face->cid; + FT_Byte* p; + FT_UInt fd_select; + FT_Stream stream = face->cid_stream; + FT_Error error = CID_Err_Ok; + FT_Byte* charstring = 0; + FT_Memory memory = face->root.memory; + FT_ULong glyph_length = 0; + PSAux_Service psaux = (PSAux_Service)face->psaux; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + FT_Incremental_InterfaceRec *inc = + face->root.internal->incremental_interface; +#endif + + + FT_TRACE4(( "cid_load_glyph: glyph index %d\n", glyph_index )); + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + /* For incremental fonts get the character data using */ + /* the callback function. */ + if ( inc ) + { + FT_Data glyph_data; + + + error = inc->funcs->get_glyph_data( inc->object, + glyph_index, &glyph_data ); + if ( error ) + goto Exit; + + p = (FT_Byte*)glyph_data.pointer; + fd_select = (FT_UInt)cid_get_offset( &p, (FT_Byte)cid->fd_bytes ); + + if ( glyph_data.length != 0 ) + { + glyph_length = glyph_data.length - cid->fd_bytes; + (void)FT_ALLOC( charstring, glyph_length ); + if ( !error ) + ft_memcpy( charstring, glyph_data.pointer + cid->fd_bytes, + glyph_length ); + } + + inc->funcs->free_glyph_data( inc->object, &glyph_data ); + + if ( error ) + goto Exit; + } + + else + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + /* For ordinary fonts read the CID font dictionary index */ + /* and charstring offset from the CIDMap. */ + { + FT_UInt entry_len = cid->fd_bytes + cid->gd_bytes; + FT_ULong off1; + + + if ( FT_STREAM_SEEK( cid->data_offset + cid->cidmap_offset + + glyph_index * entry_len ) || + FT_FRAME_ENTER( 2 * entry_len ) ) + goto Exit; + + p = (FT_Byte*)stream->cursor; + fd_select = (FT_UInt) cid_get_offset( &p, (FT_Byte)cid->fd_bytes ); + off1 = (FT_ULong)cid_get_offset( &p, (FT_Byte)cid->gd_bytes ); + p += cid->fd_bytes; + glyph_length = cid_get_offset( &p, (FT_Byte)cid->gd_bytes ) - off1; + FT_FRAME_EXIT(); + + if ( fd_select >= (FT_UInt)cid->num_dicts ) + { + error = CID_Err_Invalid_Offset; + goto Exit; + } + if ( glyph_length == 0 ) + goto Exit; + if ( FT_ALLOC( charstring, glyph_length ) ) + goto Exit; + if ( FT_STREAM_READ_AT( cid->data_offset + off1, + charstring, glyph_length ) ) + goto Exit; + } + + /* Now set up the subrs array and parse the charstrings. */ + { + CID_FaceDict dict; + CID_Subrs cid_subrs = face->subrs + fd_select; + FT_Int cs_offset; + + + /* Set up subrs */ + decoder->num_subrs = cid_subrs->num_subrs; + decoder->subrs = cid_subrs->code; + decoder->subrs_len = 0; + + /* Set up font matrix */ + dict = cid->font_dicts + fd_select; + + decoder->font_matrix = dict->font_matrix; + decoder->font_offset = dict->font_offset; + decoder->lenIV = dict->private_dict.lenIV; + + /* Decode the charstring. */ + + /* Adjustment for seed bytes. */ + cs_offset = ( decoder->lenIV >= 0 ? decoder->lenIV : 0 ); + + /* Decrypt only if lenIV >= 0. */ + if ( decoder->lenIV >= 0 ) + psaux->t1_decrypt( charstring, glyph_length, 4330 ); + + error = decoder->funcs.parse_charstrings( + decoder, charstring + cs_offset, + (FT_Int)glyph_length - cs_offset ); + } + + FT_FREE( charstring ); + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + /* Incremental fonts can optionally override the metrics. */ + if ( !error && inc && inc->funcs->get_glyph_metrics ) + { + FT_Incremental_MetricsRec metrics; + + + metrics.bearing_x = FIXED_TO_INT( decoder->builder.left_bearing.x ); + metrics.bearing_y = 0; + metrics.advance = FIXED_TO_INT( decoder->builder.advance.x ); + metrics.advance_v = FIXED_TO_INT( decoder->builder.advance.y ); + + error = inc->funcs->get_glyph_metrics( inc->object, + glyph_index, FALSE, &metrics ); + + decoder->builder.left_bearing.x = INT_TO_FIXED( metrics.bearing_x ); + decoder->builder.advance.x = INT_TO_FIXED( metrics.advance ); + decoder->builder.advance.y = INT_TO_FIXED( metrics.advance_v ); + } + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + Exit: + return error; + } + + +#if 0 + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********** *********/ + /********** *********/ + /********** COMPUTE THE MAXIMUM ADVANCE WIDTH *********/ + /********** *********/ + /********** The following code is in charge of computing *********/ + /********** the maximum advance width of the font. It *********/ + /********** quickly processes each glyph charstring to *********/ + /********** extract the value from either a `sbw' or `seac' *********/ + /********** operator. *********/ + /********** *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + cid_face_compute_max_advance( CID_Face face, + FT_Int* max_advance ) + { + FT_Error error; + T1_DecoderRec decoder; + FT_Int glyph_index; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + *max_advance = 0; + + /* Initialize load decoder */ + error = psaux->t1_decoder_funcs->init( &decoder, + (FT_Face)face, + 0, /* size */ + 0, /* glyph slot */ + 0, /* glyph names! XXX */ + 0, /* blend == 0 */ + 0, /* hinting == 0 */ + cid_load_glyph ); + if ( error ) + return error; + + /* TODO: initialize decoder.len_buildchar and decoder.buildchar */ + /* if we ever support CID-keyed multiple master fonts */ + + decoder.builder.metrics_only = 1; + decoder.builder.load_points = 0; + + /* for each glyph, parse the glyph charstring and extract */ + /* the advance width */ + for ( glyph_index = 0; glyph_index < face->root.num_glyphs; + glyph_index++ ) + { + /* now get load the unscaled outline */ + error = cid_load_glyph( &decoder, glyph_index ); + /* ignore the error if one occurred - skip to next glyph */ + } + + *max_advance = FIXED_TO_INT( decoder.builder.advance.x ); + + psaux->t1_decoder_funcs->done( &decoder ); + + return CID_Err_Ok; + } + + +#endif /* 0 */ + + + FT_LOCAL_DEF( FT_Error ) + cid_slot_load_glyph( FT_GlyphSlot cidglyph, /* CID_GlyphSlot */ + FT_Size cidsize, /* CID_Size */ + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + CID_GlyphSlot glyph = (CID_GlyphSlot)cidglyph; + FT_Error error; + T1_DecoderRec decoder; + CID_Face face = (CID_Face)cidglyph->face; + FT_Bool hinting; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + FT_Matrix font_matrix; + FT_Vector font_offset; + + + if ( glyph_index >= (FT_UInt)face->root.num_glyphs ) + { + error = CID_Err_Invalid_Argument; + goto Exit; + } + + if ( load_flags & FT_LOAD_NO_RECURSE ) + load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; + + glyph->x_scale = cidsize->metrics.x_scale; + glyph->y_scale = cidsize->metrics.y_scale; + + cidglyph->outline.n_points = 0; + cidglyph->outline.n_contours = 0; + + hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 && + ( load_flags & FT_LOAD_NO_HINTING ) == 0 ); + + cidglyph->format = FT_GLYPH_FORMAT_OUTLINE; + + error = psaux->t1_decoder_funcs->init( &decoder, + cidglyph->face, + cidsize, + cidglyph, + 0, /* glyph names -- XXX */ + 0, /* blend == 0 */ + hinting, + FT_LOAD_TARGET_MODE( load_flags ), + cid_load_glyph ); + if ( error ) + goto Exit; + + /* TODO: initialize decoder.len_buildchar and decoder.buildchar */ + /* if we ever support CID-keyed multiple master fonts */ + + /* set up the decoder */ + decoder.builder.no_recurse = FT_BOOL( + ( ( load_flags & FT_LOAD_NO_RECURSE ) != 0 ) ); + + error = cid_load_glyph( &decoder, glyph_index ); + if ( error ) + goto Exit; + + font_matrix = decoder.font_matrix; + font_offset = decoder.font_offset; + + /* save new glyph tables */ + psaux->t1_decoder_funcs->done( &decoder ); + + /* now set the metrics -- this is rather simple, as */ + /* the left side bearing is the xMin, and the top side */ + /* bearing the yMax */ + cidglyph->outline.flags &= FT_OUTLINE_OWNER; + cidglyph->outline.flags |= FT_OUTLINE_REVERSE_FILL; + + /* for composite glyphs, return only left side bearing and */ + /* advance width */ + if ( load_flags & FT_LOAD_NO_RECURSE ) + { + FT_Slot_Internal internal = cidglyph->internal; + + + cidglyph->metrics.horiBearingX = + FIXED_TO_INT( decoder.builder.left_bearing.x ); + cidglyph->metrics.horiAdvance = + FIXED_TO_INT( decoder.builder.advance.x ); + + internal->glyph_matrix = font_matrix; + internal->glyph_delta = font_offset; + internal->glyph_transformed = 1; + } + else + { + FT_BBox cbox; + FT_Glyph_Metrics* metrics = &cidglyph->metrics; + FT_Vector advance; + + + /* copy the _unscaled_ advance width */ + metrics->horiAdvance = + FIXED_TO_INT( decoder.builder.advance.x ); + cidglyph->linearHoriAdvance = + FIXED_TO_INT( decoder.builder.advance.x ); + cidglyph->internal->glyph_transformed = 0; + + /* make up vertical ones */ + metrics->vertAdvance = ( face->cid.font_bbox.yMax - + face->cid.font_bbox.yMin ) >> 16; + cidglyph->linearVertAdvance = metrics->vertAdvance; + + cidglyph->format = FT_GLYPH_FORMAT_OUTLINE; + + if ( cidsize->metrics.y_ppem < 24 ) + cidglyph->outline.flags |= FT_OUTLINE_HIGH_PRECISION; + + /* apply the font matrix */ + FT_Outline_Transform( &cidglyph->outline, &font_matrix ); + + FT_Outline_Translate( &cidglyph->outline, + font_offset.x, + font_offset.y ); + + advance.x = metrics->horiAdvance; + advance.y = 0; + FT_Vector_Transform( &advance, &font_matrix ); + metrics->horiAdvance = advance.x + font_offset.x; + + advance.x = 0; + advance.y = metrics->vertAdvance; + FT_Vector_Transform( &advance, &font_matrix ); + metrics->vertAdvance = advance.y + font_offset.y; + + if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 ) + { + /* scale the outline and the metrics */ + FT_Int n; + FT_Outline* cur = decoder.builder.base; + FT_Vector* vec = cur->points; + FT_Fixed x_scale = glyph->x_scale; + FT_Fixed y_scale = glyph->y_scale; + + + /* First of all, scale the points */ + if ( !hinting || !decoder.builder.hints_funcs ) + for ( n = cur->n_points; n > 0; n--, vec++ ) + { + vec->x = FT_MulFix( vec->x, x_scale ); + vec->y = FT_MulFix( vec->y, y_scale ); + } + + /* Then scale the metrics */ + metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale ); + metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale ); + } + + /* compute the other metrics */ + FT_Outline_Get_CBox( &cidglyph->outline, &cbox ); + + metrics->width = cbox.xMax - cbox.xMin; + metrics->height = cbox.yMax - cbox.yMin; + + metrics->horiBearingX = cbox.xMin; + metrics->horiBearingY = cbox.yMax; + + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + /* make up vertical ones */ + ft_synthesize_vertical_metrics( metrics, + metrics->vertAdvance ); + } + } + + Exit: + return error; + } + + +/* END */ diff --git a/src/cid/cidgload.h b/src/cid/cidgload.h new file mode 100644 index 0000000..a0a91bf --- /dev/null +++ b/src/cid/cidgload.h @@ -0,0 +1,51 @@ +/***************************************************************************/ +/* */ +/* cidgload.h */ +/* */ +/* OpenType Glyph Loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CIDGLOAD_H__ +#define __CIDGLOAD_H__ + + +#include <ft2build.h> +#include "cidobjs.h" + + +FT_BEGIN_HEADER + + +#if 0 + + /* Compute the maximum advance width of a font through quick parsing */ + FT_LOCAL( FT_Error ) + cid_face_compute_max_advance( CID_Face face, + FT_Int* max_advance ); + +#endif /* 0 */ + + FT_LOCAL( FT_Error ) + cid_slot_load_glyph( FT_GlyphSlot glyph, /* CID_Glyph_Slot */ + FT_Size size, /* CID_Size */ + FT_UInt glyph_index, + FT_Int32 load_flags ); + + +FT_END_HEADER + +#endif /* __CIDGLOAD_H__ */ + + +/* END */ diff --git a/src/cid/cidload.c b/src/cid/cidload.c new file mode 100644 index 0000000..3b840b7 --- /dev/null +++ b/src/cid/cidload.c @@ -0,0 +1,690 @@ +/***************************************************************************/ +/* */ +/* cidload.c */ +/* */ +/* CID-keyed Type1 font loader (body). */ +/* */ +/* Copyright 1996-2006, 2009, 2011-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_CONFIG_CONFIG_H +#include FT_MULTIPLE_MASTERS_H +#include FT_INTERNAL_TYPE1_TYPES_H + +#include "cidload.h" + +#include "ciderrs.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cidload + + + /* read a single offset */ + FT_LOCAL_DEF( FT_Long ) + cid_get_offset( FT_Byte* *start, + FT_Byte offsize ) + { + FT_Long result; + FT_Byte* p = *start; + + + for ( result = 0; offsize > 0; offsize-- ) + { + result <<= 8; + result |= *p++; + } + + *start = p; + return result; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE 1 SYMBOL PARSING *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + static FT_Error + cid_load_keyword( CID_Face face, + CID_Loader* loader, + const T1_Field keyword ) + { + FT_Error error; + CID_Parser* parser = &loader->parser; + FT_Byte* object; + void* dummy_object; + CID_FaceInfo cid = &face->cid; + + + /* if the keyword has a dedicated callback, call it */ + if ( keyword->type == T1_FIELD_TYPE_CALLBACK ) + { + keyword->reader( (FT_Face)face, parser ); + error = parser->root.error; + goto Exit; + } + + /* we must now compute the address of our target object */ + switch ( keyword->location ) + { + case T1_FIELD_LOCATION_CID_INFO: + object = (FT_Byte*)cid; + break; + + case T1_FIELD_LOCATION_FONT_INFO: + object = (FT_Byte*)&cid->font_info; + break; + + case T1_FIELD_LOCATION_FONT_EXTRA: + object = (FT_Byte*)&face->font_extra; + break; + + case T1_FIELD_LOCATION_BBOX: + object = (FT_Byte*)&cid->font_bbox; + break; + + default: + { + CID_FaceDict dict; + + + if ( parser->num_dict < 0 || parser->num_dict >= cid->num_dicts ) + { + FT_ERROR(( "cid_load_keyword: invalid use of `%s'\n", + keyword->ident )); + error = CID_Err_Syntax_Error; + goto Exit; + } + + dict = cid->font_dicts + parser->num_dict; + switch ( keyword->location ) + { + case T1_FIELD_LOCATION_PRIVATE: + object = (FT_Byte*)&dict->private_dict; + break; + + default: + object = (FT_Byte*)dict; + } + } + } + + dummy_object = object; + + /* now, load the keyword data in the object's field(s) */ + if ( keyword->type == T1_FIELD_TYPE_INTEGER_ARRAY || + keyword->type == T1_FIELD_TYPE_FIXED_ARRAY ) + error = cid_parser_load_field_table( &loader->parser, keyword, + &dummy_object ); + else + error = cid_parser_load_field( &loader->parser, + keyword, &dummy_object ); + Exit: + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + cid_parse_font_matrix( CID_Face face, + CID_Parser* parser ) + { + FT_Matrix* matrix; + FT_Vector* offset; + CID_FaceDict dict; + FT_Face root = (FT_Face)&face->root; + FT_Fixed temp[6]; + FT_Fixed temp_scale; + + + if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts ) + { + dict = face->cid.font_dicts + parser->num_dict; + matrix = &dict->font_matrix; + offset = &dict->font_offset; + + (void)cid_parser_to_fixed_array( parser, 6, temp, 3 ); + + temp_scale = FT_ABS( temp[3] ); + + /* Set units per EM based on FontMatrix values. We set the value to */ + /* `1000/temp_scale', because temp_scale was already multiplied by */ + /* 1000 (in `t1_tofixed', from psobjs.c). */ + root->units_per_EM = (FT_UShort)( FT_DivFix( 0x10000L, + FT_DivFix( temp_scale, 1000 ) ) ); + + /* we need to scale the values by 1.0/temp[3] */ + if ( temp_scale != 0x10000L ) + { + temp[0] = FT_DivFix( temp[0], temp_scale ); + temp[1] = FT_DivFix( temp[1], temp_scale ); + temp[2] = FT_DivFix( temp[2], temp_scale ); + temp[4] = FT_DivFix( temp[4], temp_scale ); + temp[5] = FT_DivFix( temp[5], temp_scale ); + temp[3] = 0x10000L; + } + + matrix->xx = temp[0]; + matrix->yx = temp[1]; + matrix->xy = temp[2]; + matrix->yy = temp[3]; + + /* note that the font offsets are expressed in integer font units */ + offset->x = temp[4] >> 16; + offset->y = temp[5] >> 16; + } + + return CID_Err_Ok; /* this is a callback function; */ + /* we must return an error code */ + } + + + FT_CALLBACK_DEF( FT_Error ) + parse_fd_array( CID_Face face, + CID_Parser* parser ) + { + CID_FaceInfo cid = &face->cid; + FT_Memory memory = face->root.memory; + FT_Error error = CID_Err_Ok; + FT_Long num_dicts; + + + num_dicts = cid_parser_to_int( parser ); + + if ( !cid->font_dicts ) + { + FT_Int n; + + + if ( FT_NEW_ARRAY( cid->font_dicts, num_dicts ) ) + goto Exit; + + cid->num_dicts = (FT_UInt)num_dicts; + + /* don't forget to set a few defaults */ + for ( n = 0; n < cid->num_dicts; n++ ) + { + CID_FaceDict dict = cid->font_dicts + n; + + + /* default value for lenIV */ + dict->private_dict.lenIV = 4; + } + } + + Exit: + return error; + } + + + /* by mistake, `expansion_factor' appears both in PS_PrivateRec */ + /* and CID_FaceDictRec (both are public header files and can't */ + /* changed); we simply copy the value */ + + FT_CALLBACK_DEF( FT_Error ) + parse_expansion_factor( CID_Face face, + CID_Parser* parser ) + { + CID_FaceDict dict; + + + if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts ) + { + dict = face->cid.font_dicts + parser->num_dict; + + dict->expansion_factor = cid_parser_to_fixed( parser, 0 ); + dict->private_dict.expansion_factor = dict->expansion_factor; + } + + return CID_Err_Ok; + } + + + static + const T1_FieldRec cid_field_records[] = + { + +#include "cidtoken.h" + + T1_FIELD_CALLBACK( "FDArray", parse_fd_array, 0 ) + T1_FIELD_CALLBACK( "FontMatrix", cid_parse_font_matrix, 0 ) + T1_FIELD_CALLBACK( "ExpansionFactor", parse_expansion_factor, 0 ) + + { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 } + }; + + + static FT_Error + cid_parse_dict( CID_Face face, + CID_Loader* loader, + FT_Byte* base, + FT_Long size ) + { + CID_Parser* parser = &loader->parser; + + + parser->root.cursor = base; + parser->root.limit = base + size; + parser->root.error = CID_Err_Ok; + + { + FT_Byte* cur = base; + FT_Byte* limit = cur + size; + + + for (;;) + { + FT_Byte* newlimit; + + + parser->root.cursor = cur; + cid_parser_skip_spaces( parser ); + + if ( parser->root.cursor >= limit ) + newlimit = limit - 1 - 17; + else + newlimit = parser->root.cursor - 17; + + /* look for `%ADOBeginFontDict' */ + for ( ; cur < newlimit; cur++ ) + { + if ( *cur == '%' && + ft_strncmp( (char*)cur, "%ADOBeginFontDict", 17 ) == 0 ) + { + /* if /FDArray was found, then cid->num_dicts is > 0, and */ + /* we can start increasing parser->num_dict */ + if ( face->cid.num_dicts > 0 ) + parser->num_dict++; + } + } + + cur = parser->root.cursor; + /* no error can occur in cid_parser_skip_spaces */ + if ( cur >= limit ) + break; + + cid_parser_skip_PS_token( parser ); + if ( parser->root.cursor >= limit || parser->root.error ) + break; + + /* look for immediates */ + if ( *cur == '/' && cur + 2 < limit ) + { + FT_PtrDist len; + + + cur++; + len = parser->root.cursor - cur; + + if ( len > 0 && len < 22 ) + { + /* now compare the immediate name to the keyword table */ + T1_Field keyword = (T1_Field)cid_field_records; + + + for (;;) + { + FT_Byte* name; + + + name = (FT_Byte*)keyword->ident; + if ( !name ) + break; + + if ( cur[0] == name[0] && + len == (FT_PtrDist)ft_strlen( (const char*)name ) ) + { + FT_PtrDist n; + + + for ( n = 1; n < len; n++ ) + if ( cur[n] != name[n] ) + break; + + if ( n >= len ) + { + /* we found it - run the parsing callback */ + parser->root.error = cid_load_keyword( face, + loader, + keyword ); + if ( parser->root.error ) + return parser->root.error; + break; + } + } + keyword++; + } + } + } + + cur = parser->root.cursor; + } + } + return parser->root.error; + } + + + /* read the subrmap and the subrs of each font dict */ + static FT_Error + cid_read_subrs( CID_Face face ) + { + CID_FaceInfo cid = &face->cid; + FT_Memory memory = face->root.memory; + FT_Stream stream = face->cid_stream; + FT_Error error; + FT_Int n; + CID_Subrs subr; + FT_UInt max_offsets = 0; + FT_ULong* offsets = 0; + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + if ( FT_NEW_ARRAY( face->subrs, cid->num_dicts ) ) + goto Exit; + + subr = face->subrs; + for ( n = 0; n < cid->num_dicts; n++, subr++ ) + { + CID_FaceDict dict = cid->font_dicts + n; + FT_Int lenIV = dict->private_dict.lenIV; + FT_UInt count, num_subrs = dict->num_subrs; + FT_ULong data_len; + FT_Byte* p; + + + /* Check for possible overflow. */ + if ( num_subrs == FT_UINT_MAX ) + { + error = CID_Err_Syntax_Error; + goto Fail; + } + + /* reallocate offsets array if needed */ + if ( num_subrs + 1 > max_offsets ) + { + FT_UInt new_max = FT_PAD_CEIL( num_subrs + 1, 4 ); + + + if ( new_max <= max_offsets ) + { + error = CID_Err_Syntax_Error; + goto Fail; + } + + if ( FT_RENEW_ARRAY( offsets, max_offsets, new_max ) ) + goto Fail; + + max_offsets = new_max; + } + + /* read the subrmap's offsets */ + if ( FT_STREAM_SEEK( cid->data_offset + dict->subrmap_offset ) || + FT_FRAME_ENTER( ( num_subrs + 1 ) * dict->sd_bytes ) ) + goto Fail; + + p = (FT_Byte*)stream->cursor; + for ( count = 0; count <= num_subrs; count++ ) + offsets[count] = cid_get_offset( &p, (FT_Byte)dict->sd_bytes ); + + FT_FRAME_EXIT(); + + /* offsets must be ordered */ + for ( count = 1; count <= num_subrs; count++ ) + if ( offsets[count - 1] > offsets[count] ) + goto Fail; + + /* now, compute the size of subrs charstrings, */ + /* allocate, and read them */ + data_len = offsets[num_subrs] - offsets[0]; + + if ( FT_NEW_ARRAY( subr->code, num_subrs + 1 ) || + FT_ALLOC( subr->code[0], data_len ) ) + goto Fail; + + if ( FT_STREAM_SEEK( cid->data_offset + offsets[0] ) || + FT_STREAM_READ( subr->code[0], data_len ) ) + goto Fail; + + /* set up pointers */ + for ( count = 1; count <= num_subrs; count++ ) + { + FT_ULong len; + + + len = offsets[count] - offsets[count - 1]; + subr->code[count] = subr->code[count - 1] + len; + } + + /* decrypt subroutines, but only if lenIV >= 0 */ + if ( lenIV >= 0 ) + { + for ( count = 0; count < num_subrs; count++ ) + { + FT_ULong len; + + + len = offsets[count + 1] - offsets[count]; + psaux->t1_decrypt( subr->code[count], len, 4330 ); + } + } + + subr->num_subrs = num_subrs; + } + + Exit: + FT_FREE( offsets ); + return error; + + Fail: + if ( face->subrs ) + { + for ( n = 0; n < cid->num_dicts; n++ ) + { + if ( face->subrs[n].code ) + FT_FREE( face->subrs[n].code[0] ); + + FT_FREE( face->subrs[n].code ); + } + FT_FREE( face->subrs ); + } + goto Exit; + } + + + static void + cid_init_loader( CID_Loader* loader, + CID_Face face ) + { + FT_UNUSED( face ); + + FT_MEM_ZERO( loader, sizeof ( *loader ) ); + } + + + static void + cid_done_loader( CID_Loader* loader ) + { + CID_Parser* parser = &loader->parser; + + + /* finalize parser */ + cid_parser_done( parser ); + } + + + static FT_Error + cid_hex_to_binary( FT_Byte* data, + FT_Long data_len, + FT_ULong offset, + CID_Face face ) + { + FT_Stream stream = face->root.stream; + FT_Error error; + + FT_Byte buffer[256]; + FT_Byte *p, *plimit; + FT_Byte *d, *dlimit; + FT_Byte val; + + FT_Bool upper_nibble, done; + + + if ( FT_STREAM_SEEK( offset ) ) + goto Exit; + + d = data; + dlimit = d + data_len; + p = buffer; + plimit = p; + + upper_nibble = 1; + done = 0; + + while ( d < dlimit ) + { + if ( p >= plimit ) + { + FT_ULong oldpos = FT_STREAM_POS(); + FT_ULong size = stream->size - oldpos; + + + if ( size == 0 ) + { + error = CID_Err_Syntax_Error; + goto Exit; + } + + if ( FT_STREAM_READ( buffer, 256 > size ? size : 256 ) ) + goto Exit; + p = buffer; + plimit = p + FT_STREAM_POS() - oldpos; + } + + if ( ft_isdigit( *p ) ) + val = (FT_Byte)( *p - '0' ); + else if ( *p >= 'a' && *p <= 'f' ) + val = (FT_Byte)( *p - 'a' ); + else if ( *p >= 'A' && *p <= 'F' ) + val = (FT_Byte)( *p - 'A' + 10 ); + else if ( *p == ' ' || + *p == '\t' || + *p == '\r' || + *p == '\n' || + *p == '\f' || + *p == '\0' ) + { + p++; + continue; + } + else if ( *p == '>' ) + { + val = 0; + done = 1; + } + else + { + error = CID_Err_Syntax_Error; + goto Exit; + } + + if ( upper_nibble ) + *d = (FT_Byte)( val << 4 ); + else + { + *d = (FT_Byte)( *d + val ); + d++; + } + + upper_nibble = (FT_Byte)( 1 - upper_nibble ); + + if ( done ) + break; + + p++; + } + + error = CID_Err_Ok; + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + cid_face_open( CID_Face face, + FT_Int face_index ) + { + CID_Loader loader; + CID_Parser* parser; + FT_Memory memory = face->root.memory; + FT_Error error; + + + cid_init_loader( &loader, face ); + + parser = &loader.parser; + error = cid_parser_new( parser, face->root.stream, face->root.memory, + (PSAux_Service)face->psaux ); + if ( error ) + goto Exit; + + error = cid_parse_dict( face, &loader, + parser->postscript, + parser->postscript_len ); + if ( error ) + goto Exit; + + if ( face_index < 0 ) + goto Exit; + + if ( FT_NEW( face->cid_stream ) ) + goto Exit; + + if ( parser->binary_length ) + { + /* we must convert the data section from hexadecimal to binary */ + if ( FT_ALLOC( face->binary_data, parser->binary_length ) || + cid_hex_to_binary( face->binary_data, parser->binary_length, + parser->data_offset, face ) ) + goto Exit; + + FT_Stream_OpenMemory( face->cid_stream, + face->binary_data, parser->binary_length ); + face->cid.data_offset = 0; + } + else + { + *face->cid_stream = *face->root.stream; + face->cid.data_offset = loader.parser.data_offset; + } + + error = cid_read_subrs( face ); + + Exit: + cid_done_loader( &loader ); + return error; + } + + +/* END */ diff --git a/src/cid/cidload.h b/src/cid/cidload.h new file mode 100644 index 0000000..8c172ff --- /dev/null +++ b/src/cid/cidload.h @@ -0,0 +1,53 @@ +/***************************************************************************/ +/* */ +/* cidload.h */ +/* */ +/* CID-keyed Type1 font loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CIDLOAD_H__ +#define __CIDLOAD_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_STREAM_H +#include "cidparse.h" + + +FT_BEGIN_HEADER + + + typedef struct CID_Loader_ + { + CID_Parser parser; /* parser used to read the stream */ + FT_Int num_chars; /* number of characters in encoding */ + + } CID_Loader; + + + FT_LOCAL( FT_Long ) + cid_get_offset( FT_Byte** start, + FT_Byte offsize ); + + FT_LOCAL( FT_Error ) + cid_face_open( CID_Face face, + FT_Int face_index ); + + +FT_END_HEADER + +#endif /* __CIDLOAD_H__ */ + + +/* END */ diff --git a/src/cid/cidobjs.c b/src/cid/cidobjs.c new file mode 100644 index 0000000..cc2a200 --- /dev/null +++ b/src/cid/cidobjs.c @@ -0,0 +1,491 @@ +/***************************************************************************/ +/* */ +/* cidobjs.c */ +/* */ +/* CID objects manager (body). */ +/* */ +/* Copyright 1996-2006, 2008, 2010-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H + +#include "cidgload.h" +#include "cidload.h" + +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + +#include "ciderrs.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cidobjs + + + /*************************************************************************/ + /* */ + /* SLOT FUNCTIONS */ + /* */ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + cid_slot_done( FT_GlyphSlot slot ) + { + slot->internal->glyph_hints = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + cid_slot_init( FT_GlyphSlot slot ) + { + CID_Face face; + PSHinter_Service pshinter; + + + face = (CID_Face)slot->face; + pshinter = (PSHinter_Service)face->pshinter; + + if ( pshinter ) + { + FT_Module module; + + + module = FT_Get_Module( slot->face->driver->root.library, + "pshinter" ); + if ( module ) + { + T1_Hints_Funcs funcs; + + + funcs = pshinter->get_t1_funcs( module ); + slot->internal->glyph_hints = (void*)funcs; + } + } + + return 0; + } + + + /*************************************************************************/ + /* */ + /* SIZE FUNCTIONS */ + /* */ + /*************************************************************************/ + + + static PSH_Globals_Funcs + cid_size_get_globals_funcs( CID_Size size ) + { + CID_Face face = (CID_Face)size->root.face; + PSHinter_Service pshinter = (PSHinter_Service)face->pshinter; + FT_Module module; + + + module = FT_Get_Module( size->root.face->driver->root.library, + "pshinter" ); + return ( module && pshinter && pshinter->get_globals_funcs ) + ? pshinter->get_globals_funcs( module ) + : 0; + } + + + FT_LOCAL_DEF( void ) + cid_size_done( FT_Size cidsize ) /* CID_Size */ + { + CID_Size size = (CID_Size)cidsize; + + + if ( cidsize->internal ) + { + PSH_Globals_Funcs funcs; + + + funcs = cid_size_get_globals_funcs( size ); + if ( funcs ) + funcs->destroy( (PSH_Globals)cidsize->internal ); + + cidsize->internal = 0; + } + } + + + FT_LOCAL_DEF( FT_Error ) + cid_size_init( FT_Size cidsize ) /* CID_Size */ + { + CID_Size size = (CID_Size)cidsize; + FT_Error error = CID_Err_Ok; + PSH_Globals_Funcs funcs = cid_size_get_globals_funcs( size ); + + + if ( funcs ) + { + PSH_Globals globals; + CID_Face face = (CID_Face)cidsize->face; + CID_FaceDict dict = face->cid.font_dicts + face->root.face_index; + PS_Private priv = &dict->private_dict; + + + error = funcs->create( cidsize->face->memory, priv, &globals ); + if ( !error ) + cidsize->internal = (FT_Size_Internal)(void*)globals; + } + + return error; + } + + + FT_LOCAL( FT_Error ) + cid_size_request( FT_Size size, + FT_Size_Request req ) + { + PSH_Globals_Funcs funcs; + + + FT_Request_Metrics( size->face, req ); + + funcs = cid_size_get_globals_funcs( (CID_Size)size ); + + if ( funcs ) + funcs->set_scale( (PSH_Globals)size->internal, + size->metrics.x_scale, + size->metrics.y_scale, + 0, 0 ); + + return CID_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* FACE FUNCTIONS */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cid_face_done */ + /* */ + /* <Description> */ + /* Finalizes a given face object. */ + /* */ + /* <Input> */ + /* face :: A pointer to the face object to destroy. */ + /* */ + FT_LOCAL_DEF( void ) + cid_face_done( FT_Face cidface ) /* CID_Face */ + { + CID_Face face = (CID_Face)cidface; + FT_Memory memory; + CID_FaceInfo cid; + PS_FontInfo info; + + + if ( !face ) + return; + + cid = &face->cid; + info = &cid->font_info; + memory = cidface->memory; + + /* release subrs */ + if ( face->subrs ) + { + FT_Int n; + + + for ( n = 0; n < cid->num_dicts; n++ ) + { + CID_Subrs subr = face->subrs + n; + + + if ( subr->code ) + { + FT_FREE( subr->code[0] ); + FT_FREE( subr->code ); + } + } + + FT_FREE( face->subrs ); + } + + /* release FontInfo strings */ + FT_FREE( info->version ); + FT_FREE( info->notice ); + FT_FREE( info->full_name ); + FT_FREE( info->family_name ); + FT_FREE( info->weight ); + + /* release font dictionaries */ + FT_FREE( cid->font_dicts ); + cid->num_dicts = 0; + + /* release other strings */ + FT_FREE( cid->cid_font_name ); + FT_FREE( cid->registry ); + FT_FREE( cid->ordering ); + + cidface->family_name = 0; + cidface->style_name = 0; + + FT_FREE( face->binary_data ); + FT_FREE( face->cid_stream ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cid_face_init */ + /* */ + /* <Description> */ + /* Initializes a given CID face object. */ + /* */ + /* <Input> */ + /* stream :: The source font stream. */ + /* */ + /* face_index :: The index of the font face in the resource. */ + /* */ + /* num_params :: Number of additional generic parameters. Ignored. */ + /* */ + /* params :: Additional generic parameters. Ignored. */ + /* */ + /* <InOut> */ + /* face :: The newly built face object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + cid_face_init( FT_Stream stream, + FT_Face cidface, /* CID_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + CID_Face face = (CID_Face)cidface; + FT_Error error; + PSAux_Service psaux; + PSHinter_Service pshinter; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + FT_UNUSED( stream ); + + + cidface->num_faces = 1; + + psaux = (PSAux_Service)face->psaux; + if ( !psaux ) + { + psaux = (PSAux_Service)FT_Get_Module_Interface( + FT_FACE_LIBRARY( face ), "psaux" ); + + if ( !psaux ) + { + FT_ERROR(( "cid_face_init: cannot access `psaux' module\n" )); + error = CID_Err_Missing_Module; + goto Exit; + } + + face->psaux = psaux; + } + + pshinter = (PSHinter_Service)face->pshinter; + if ( !pshinter ) + { + pshinter = (PSHinter_Service)FT_Get_Module_Interface( + FT_FACE_LIBRARY( face ), "pshinter" ); + + face->pshinter = pshinter; + } + + FT_TRACE2(( "CID driver\n" )); + + /* open the tokenizer; this will also check the font format */ + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + + error = cid_face_open( face, face_index ); + if ( error ) + goto Exit; + + /* if we just wanted to check the format, leave successfully now */ + if ( face_index < 0 ) + goto Exit; + + /* check the face index */ + /* XXX: handle CID fonts with more than a single face */ + if ( face_index != 0 ) + { + FT_ERROR(( "cid_face_init: invalid face index\n" )); + error = CID_Err_Invalid_Argument; + goto Exit; + } + + /* now load the font program into the face object */ + + /* initialize the face object fields */ + + /* set up root face fields */ + { + CID_FaceInfo cid = &face->cid; + PS_FontInfo info = &cid->font_info; + + + cidface->num_glyphs = cid->cid_count; + cidface->num_charmaps = 0; + + cidface->face_index = face_index; + cidface->face_flags = FT_FACE_FLAG_SCALABLE | /* scalable outlines */ + FT_FACE_FLAG_HORIZONTAL | /* horizontal data */ + FT_FACE_FLAG_HINTER; /* has native hinter */ + + if ( info->is_fixed_pitch ) + cidface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + /* XXX: TODO: add kerning with .afm support */ + + /* get style name -- be careful, some broken fonts only */ + /* have a /FontName dictionary entry! */ + cidface->family_name = info->family_name; + /* assume "Regular" style if we don't know better */ + cidface->style_name = (char *)"Regular"; + if ( cidface->family_name ) + { + char* full = info->full_name; + char* family = cidface->family_name; + + + if ( full ) + { + while ( *full ) + { + if ( *full == *family ) + { + family++; + full++; + } + else + { + if ( *full == ' ' || *full == '-' ) + full++; + else if ( *family == ' ' || *family == '-' ) + family++; + else + { + if ( !*family ) + cidface->style_name = full; + break; + } + } + } + } + } + else + { + /* do we have a `/FontName'? */ + if ( cid->cid_font_name ) + cidface->family_name = cid->cid_font_name; + } + + /* compute style flags */ + cidface->style_flags = 0; + if ( info->italic_angle ) + cidface->style_flags |= FT_STYLE_FLAG_ITALIC; + if ( info->weight ) + { + if ( !ft_strcmp( info->weight, "Bold" ) || + !ft_strcmp( info->weight, "Black" ) ) + cidface->style_flags |= FT_STYLE_FLAG_BOLD; + } + + /* no embedded bitmap support */ + cidface->num_fixed_sizes = 0; + cidface->available_sizes = 0; + + cidface->bbox.xMin = cid->font_bbox.xMin >> 16; + cidface->bbox.yMin = cid->font_bbox.yMin >> 16; + /* no `U' suffix here to 0xFFFF! */ + cidface->bbox.xMax = ( cid->font_bbox.xMax + 0xFFFF ) >> 16; + cidface->bbox.yMax = ( cid->font_bbox.yMax + 0xFFFF ) >> 16; + + if ( !cidface->units_per_EM ) + cidface->units_per_EM = 1000; + + cidface->ascender = (FT_Short)( cidface->bbox.yMax ); + cidface->descender = (FT_Short)( cidface->bbox.yMin ); + + cidface->height = (FT_Short)( ( cidface->units_per_EM * 12 ) / 10 ); + if ( cidface->height < cidface->ascender - cidface->descender ) + cidface->height = (FT_Short)( cidface->ascender - cidface->descender ); + + cidface->underline_position = (FT_Short)info->underline_position; + cidface->underline_thickness = (FT_Short)info->underline_thickness; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cid_driver_init */ + /* */ + /* <Description> */ + /* Initializes a given CID driver object. */ + /* */ + /* <Input> */ + /* driver :: A handle to the target driver object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + cid_driver_init( FT_Module driver ) + { + FT_UNUSED( driver ); + + return CID_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* cid_driver_done */ + /* */ + /* <Description> */ + /* Finalizes a given CID driver. */ + /* */ + /* <Input> */ + /* driver :: A handle to the target CID driver. */ + /* */ + FT_LOCAL_DEF( void ) + cid_driver_done( FT_Module driver ) + { + FT_UNUSED( driver ); + } + + +/* END */ diff --git a/src/cid/cidobjs.h b/src/cid/cidobjs.h new file mode 100644 index 0000000..aee346d --- /dev/null +++ b/src/cid/cidobjs.h @@ -0,0 +1,154 @@ +/***************************************************************************/ +/* */ +/* cidobjs.h */ +/* */ +/* CID objects manager (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CIDOBJS_H__ +#define __CIDOBJS_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_TYPE1_TYPES_H + + +FT_BEGIN_HEADER + + + /* The following structures must be defined by the hinter */ + typedef struct CID_Size_Hints_ CID_Size_Hints; + typedef struct CID_Glyph_Hints_ CID_Glyph_Hints; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CID_Driver */ + /* */ + /* <Description> */ + /* A handle to a Type 1 driver object. */ + /* */ + typedef struct CID_DriverRec_* CID_Driver; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CID_Size */ + /* */ + /* <Description> */ + /* A handle to a Type 1 size object. */ + /* */ + typedef struct CID_SizeRec_* CID_Size; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CID_GlyphSlot */ + /* */ + /* <Description> */ + /* A handle to a Type 1 glyph slot object. */ + /* */ + typedef struct CID_GlyphSlotRec_* CID_GlyphSlot; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* CID_CharMap */ + /* */ + /* <Description> */ + /* A handle to a Type 1 character mapping object. */ + /* */ + /* <Note> */ + /* The Type 1 format doesn't use a charmap but an encoding table. */ + /* The driver is responsible for making up charmap objects */ + /* corresponding to these tables. */ + /* */ + typedef struct CID_CharMapRec_* CID_CharMap; + + + /*************************************************************************/ + /* */ + /* HERE BEGINS THE TYPE 1 SPECIFIC STUFF */ + /* */ + /*************************************************************************/ + + + typedef struct CID_SizeRec_ + { + FT_SizeRec root; + FT_Bool valid; + + } CID_SizeRec; + + + typedef struct CID_GlyphSlotRec_ + { + FT_GlyphSlotRec root; + + FT_Bool hint; + FT_Bool scaled; + + FT_Fixed x_scale; + FT_Fixed y_scale; + + } CID_GlyphSlotRec; + + + FT_LOCAL( void ) + cid_slot_done( FT_GlyphSlot slot ); + + FT_LOCAL( FT_Error ) + cid_slot_init( FT_GlyphSlot slot ); + + + FT_LOCAL( void ) + cid_size_done( FT_Size size ); /* CID_Size */ + + FT_LOCAL( FT_Error ) + cid_size_init( FT_Size size ); /* CID_Size */ + + FT_LOCAL( FT_Error ) + cid_size_request( FT_Size size, /* CID_Size */ + FT_Size_Request req ); + + FT_LOCAL( FT_Error ) + cid_face_init( FT_Stream stream, + FT_Face face, /* CID_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( void ) + cid_face_done( FT_Face face ); /* CID_Face */ + + + FT_LOCAL( FT_Error ) + cid_driver_init( FT_Module driver ); + + FT_LOCAL( void ) + cid_driver_done( FT_Module driver ); + + +FT_END_HEADER + +#endif /* __CIDOBJS_H__ */ + + +/* END */ diff --git a/src/cid/cidparse.c b/src/cid/cidparse.c new file mode 100644 index 0000000..4d21160 --- /dev/null +++ b/src/cid/cidparse.c @@ -0,0 +1,225 @@ +/***************************************************************************/ +/* */ +/* cidparse.c */ +/* */ +/* CID-keyed Type1 parser (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_STREAM_H + +#include "cidparse.h" + +#include "ciderrs.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_cidparse + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** INPUT STREAM PARSER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + cid_parser_new( CID_Parser* parser, + FT_Stream stream, + FT_Memory memory, + PSAux_Service psaux ) + { + FT_Error error; + FT_ULong base_offset, offset, ps_len; + FT_Byte *cur, *limit; + FT_Byte *arg1, *arg2; + + + FT_MEM_ZERO( parser, sizeof ( *parser ) ); + psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory ); + + parser->stream = stream; + + base_offset = FT_STREAM_POS(); + + /* first of all, check the font format in the header */ + if ( FT_FRAME_ENTER( 31 ) ) + goto Exit; + + if ( ft_strncmp( (char *)stream->cursor, + "%!PS-Adobe-3.0 Resource-CIDFont", 31 ) ) + { + FT_TRACE2(( " not a CID-keyed font\n" )); + error = CID_Err_Unknown_File_Format; + } + + FT_FRAME_EXIT(); + if ( error ) + goto Exit; + + Again: + /* now, read the rest of the file until we find */ + /* `StartData' or `/sfnts' */ + { + FT_Byte buffer[256 + 10]; + FT_Long read_len = 256 + 10; /* same as signed FT_Stream->size */ + FT_Byte* p = buffer; + + + for ( offset = FT_STREAM_POS(); ; offset += 256 ) + { + FT_Long stream_len; /* same as signed FT_Stream->size */ + + + stream_len = stream->size - FT_STREAM_POS(); + if ( stream_len == 0 ) + { + FT_TRACE2(( "cid_parser_new: no `StartData' keyword found\n" )); + error = CID_Err_Invalid_File_Format; + goto Exit; + } + + read_len = FT_MIN( read_len, stream_len ); + if ( FT_STREAM_READ( p, read_len ) ) + goto Exit; + + if ( read_len < 256 ) + p[read_len] = '\0'; + + limit = p + read_len - 10; + + for ( p = buffer; p < limit; p++ ) + { + if ( p[0] == 'S' && ft_strncmp( (char*)p, "StartData", 9 ) == 0 ) + { + /* save offset of binary data after `StartData' */ + offset += p - buffer + 10; + goto Found; + } + else if ( p[1] == 's' && ft_strncmp( (char*)p, "/sfnts", 6 ) == 0 ) + { + offset += p - buffer + 7; + goto Found; + } + } + + FT_MEM_MOVE( buffer, p, 10 ); + read_len = 256; + p = buffer + 10; + } + } + + Found: + /* We have found the start of the binary data or the `/sfnts' token. */ + /* Now rewind and extract the frame corresponding to this PostScript */ + /* section. */ + + ps_len = offset - base_offset; + if ( FT_STREAM_SEEK( base_offset ) || + FT_FRAME_EXTRACT( ps_len, parser->postscript ) ) + goto Exit; + + parser->data_offset = offset; + parser->postscript_len = ps_len; + parser->root.base = parser->postscript; + parser->root.cursor = parser->postscript; + parser->root.limit = parser->root.cursor + ps_len; + parser->num_dict = -1; + + /* Finally, we check whether `StartData' or `/sfnts' was real -- */ + /* it could be in a comment or string. We also get the arguments */ + /* of `StartData' to find out whether the data is represented in */ + /* binary or hex format. */ + + arg1 = parser->root.cursor; + cid_parser_skip_PS_token( parser ); + cid_parser_skip_spaces ( parser ); + arg2 = parser->root.cursor; + cid_parser_skip_PS_token( parser ); + cid_parser_skip_spaces ( parser ); + + limit = parser->root.limit; + cur = parser->root.cursor; + + while ( cur < limit ) + { + if ( parser->root.error ) + { + error = parser->root.error; + goto Exit; + } + + if ( cur[0] == 'S' && ft_strncmp( (char*)cur, "StartData", 9 ) == 0 ) + { + if ( ft_strncmp( (char*)arg1, "(Hex)", 5 ) == 0 ) + parser->binary_length = ft_atol( (const char *)arg2 ); + + limit = parser->root.limit; + cur = parser->root.cursor; + goto Exit; + } + else if ( cur[1] == 's' && ft_strncmp( (char*)cur, "/sfnts", 6 ) == 0 ) + { + FT_TRACE2(( "cid_parser_new: cannot handle Type 11 fonts\n" )); + error = CID_Err_Unknown_File_Format; + goto Exit; + } + + cid_parser_skip_PS_token( parser ); + cid_parser_skip_spaces ( parser ); + arg1 = arg2; + arg2 = cur; + cur = parser->root.cursor; + } + + /* we haven't found the correct `StartData'; go back and continue */ + /* searching */ + FT_FRAME_RELEASE( parser->postscript ); + if ( !FT_STREAM_SEEK( offset ) ) + goto Again; + + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + cid_parser_done( CID_Parser* parser ) + { + /* always free the private dictionary */ + if ( parser->postscript ) + { + FT_Stream stream = parser->stream; + + + FT_FRAME_RELEASE( parser->postscript ); + } + parser->root.funcs.done( &parser->root ); + } + + +/* END */ diff --git a/src/cid/cidparse.h b/src/cid/cidparse.h new file mode 100644 index 0000000..ca37dea --- /dev/null +++ b/src/cid/cidparse.h @@ -0,0 +1,123 @@ +/***************************************************************************/ +/* */ +/* cidparse.h */ +/* */ +/* CID-keyed Type1 parser (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CIDPARSE_H__ +#define __CIDPARSE_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_TYPE1_TYPES_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* CID_Parser */ + /* */ + /* <Description> */ + /* A CID_Parser is an object used to parse a Type 1 fonts very */ + /* quickly. */ + /* */ + /* <Fields> */ + /* root :: The root PS_ParserRec fields. */ + /* */ + /* stream :: The current input stream. */ + /* */ + /* postscript :: A pointer to the data to be parsed. */ + /* */ + /* postscript_len :: The length of the data to be parsed. */ + /* */ + /* data_offset :: The start position of the binary data (i.e., the */ + /* end of the data to be parsed. */ + /* */ + /* binary_length :: The length of the data after the `StartData' */ + /* command if the data format is hexadecimal. */ + /* */ + /* cid :: A structure which holds the information about */ + /* the current font. */ + /* */ + /* num_dict :: The number of font dictionaries. */ + /* */ + typedef struct CID_Parser_ + { + PS_ParserRec root; + FT_Stream stream; + + FT_Byte* postscript; + FT_Long postscript_len; + + FT_ULong data_offset; + + FT_Long binary_length; + + CID_FaceInfo cid; + FT_Int num_dict; + + } CID_Parser; + + + FT_LOCAL( FT_Error ) + cid_parser_new( CID_Parser* parser, + FT_Stream stream, + FT_Memory memory, + PSAux_Service psaux ); + + FT_LOCAL( void ) + cid_parser_done( CID_Parser* parser ); + + + /*************************************************************************/ + /* */ + /* PARSING ROUTINES */ + /* */ + /*************************************************************************/ + +#define cid_parser_skip_spaces( p ) \ + (p)->root.funcs.skip_spaces( &(p)->root ) +#define cid_parser_skip_PS_token( p ) \ + (p)->root.funcs.skip_PS_token( &(p)->root ) + +#define cid_parser_to_int( p ) (p)->root.funcs.to_int( &(p)->root ) +#define cid_parser_to_fixed( p, t ) (p)->root.funcs.to_fixed( &(p)->root, t ) + +#define cid_parser_to_coord_array( p, m, c ) \ + (p)->root.funcs.to_coord_array( &(p)->root, m, c ) +#define cid_parser_to_fixed_array( p, m, f, t ) \ + (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t ) +#define cid_parser_to_token( p, t ) \ + (p)->root.funcs.to_token( &(p)->root, t ) +#define cid_parser_to_token_array( p, t, m, c ) \ + (p)->root.funcs.to_token_array( &(p)->root, t, m, c ) + +#define cid_parser_load_field( p, f, o ) \ + (p)->root.funcs.load_field( &(p)->root, f, o, 0, 0 ) +#define cid_parser_load_field_table( p, f, o ) \ + (p)->root.funcs.load_field_table( &(p)->root, f, o, 0, 0 ) + + +FT_END_HEADER + +#endif /* __CIDPARSE_H__ */ + + +/* END */ diff --git a/src/cid/cidriver.c b/src/cid/cidriver.c new file mode 100644 index 0000000..694070a --- /dev/null +++ b/src/cid/cidriver.c @@ -0,0 +1,241 @@ +/***************************************************************************/ +/* */ +/* cidriver.c */ +/* */ +/* CID driver interface (body). */ +/* */ +/* Copyright 1996-2004, 2006, 2008, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include "cidriver.h" +#include "cidgload.h" +#include FT_INTERNAL_DEBUG_H + +#include "ciderrs.h" + +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_XFREE86_NAME_H +#include FT_SERVICE_POSTSCRIPT_INFO_H +#include FT_SERVICE_CID_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ciddriver + + + /* + * POSTSCRIPT NAME SERVICE + * + */ + + static const char* + cid_get_postscript_name( CID_Face face ) + { + const char* result = face->cid.cid_font_name; + + + if ( result && result[0] == '/' ) + result++; + + return result; + } + + + static const FT_Service_PsFontNameRec cid_service_ps_name = + { + (FT_PsName_GetFunc) cid_get_postscript_name + }; + + + /* + * POSTSCRIPT INFO SERVICE + * + */ + + static FT_Error + cid_ps_get_font_info( FT_Face face, + PS_FontInfoRec* afont_info ) + { + *afont_info = ((CID_Face)face)->cid.font_info; + + return CID_Err_Ok; + } + + static FT_Error + cid_ps_get_font_extra( FT_Face face, + PS_FontExtraRec* afont_extra ) + { + *afont_extra = ((CID_Face)face)->font_extra; + + return CID_Err_Ok; + } + + static const FT_Service_PsInfoRec cid_service_ps_info = + { + (PS_GetFontInfoFunc) cid_ps_get_font_info, + (PS_GetFontExtraFunc) cid_ps_get_font_extra, + (PS_HasGlyphNamesFunc) NULL, /* unsupported with CID fonts */ + (PS_GetFontPrivateFunc)NULL, /* unsupported */ + (PS_GetFontValueFunc) NULL /* not implemented */ + }; + + + /* + * CID INFO SERVICE + * + */ + static FT_Error + cid_get_ros( CID_Face face, + const char* *registry, + const char* *ordering, + FT_Int *supplement ) + { + CID_FaceInfo cid = &face->cid; + + + if ( registry ) + *registry = cid->registry; + + if ( ordering ) + *ordering = cid->ordering; + + if ( supplement ) + *supplement = cid->supplement; + + return CID_Err_Ok; + } + + + static FT_Error + cid_get_is_cid( CID_Face face, + FT_Bool *is_cid ) + { + FT_Error error = CID_Err_Ok; + FT_UNUSED( face ); + + + if ( is_cid ) + *is_cid = 1; /* cid driver is only used for CID keyed fonts */ + + return error; + } + + + static FT_Error + cid_get_cid_from_glyph_index( CID_Face face, + FT_UInt glyph_index, + FT_UInt *cid ) + { + FT_Error error = CID_Err_Ok; + FT_UNUSED( face ); + + + if ( cid ) + *cid = glyph_index; /* identity mapping */ + + return error; + } + + + static const FT_Service_CIDRec cid_service_cid_info = + { + (FT_CID_GetRegistryOrderingSupplementFunc)cid_get_ros, + (FT_CID_GetIsInternallyCIDKeyedFunc) cid_get_is_cid, + (FT_CID_GetCIDFromGlyphIndexFunc) cid_get_cid_from_glyph_index + }; + + + /* + * SERVICE LIST + * + */ + + static const FT_ServiceDescRec cid_services[] = + { + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CID }, + { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cid_service_ps_name }, + { FT_SERVICE_ID_POSTSCRIPT_INFO, &cid_service_ps_info }, + { FT_SERVICE_ID_CID, &cid_service_cid_info }, + { NULL, NULL } + }; + + + FT_CALLBACK_DEF( FT_Module_Interface ) + cid_get_interface( FT_Module module, + const char* cid_interface ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( cid_services, cid_interface ); + } + + + + FT_CALLBACK_TABLE_DEF + const FT_Driver_ClassRec t1cid_driver_class = + { + /* first of all, the FT_Module_Class fields */ + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_SCALABLE | + FT_MODULE_DRIVER_HAS_HINTER, + + sizeof ( FT_DriverRec ), + "t1cid", /* module name */ + 0x10000L, /* version 1.0 of driver */ + 0x20000L, /* requires FreeType 2.0 */ + + 0, + + cid_driver_init, + cid_driver_done, + cid_get_interface + }, + + /* then the other font drivers fields */ + sizeof ( CID_FaceRec ), + sizeof ( CID_SizeRec ), + sizeof ( CID_GlyphSlotRec ), + + cid_face_init, + cid_face_done, + + cid_size_init, + cid_size_done, + cid_slot_init, + cid_slot_done, + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + + cid_slot_load_glyph, + + 0, /* FT_Face_GetKerningFunc */ + 0, /* FT_Face_AttachFunc */ + + 0, /* FT_Face_GetAdvancesFunc */ + + cid_size_request, + 0 /* FT_Size_SelectFunc */ + }; + + +/* END */ diff --git a/src/cid/cidriver.h b/src/cid/cidriver.h new file mode 100644 index 0000000..3c45e06 --- /dev/null +++ b/src/cid/cidriver.h @@ -0,0 +1,43 @@ +/***************************************************************************/ +/* */ +/* cidriver.h */ +/* */ +/* High-level CID driver interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __CIDRIVER_H__ +#define __CIDRIVER_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_CALLBACK_TABLE + const FT_Driver_ClassRec t1cid_driver_class; + + +FT_END_HEADER + +#endif /* __CIDRIVER_H__ */ + + +/* END */ diff --git a/src/cid/cidtoken.h b/src/cid/cidtoken.h new file mode 100644 index 0000000..904cb09 --- /dev/null +++ b/src/cid/cidtoken.h @@ -0,0 +1,112 @@ +/***************************************************************************/ +/* */ +/* cidtoken.h */ +/* */ +/* CID token definitions (specification only). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#undef FT_STRUCTURE +#define FT_STRUCTURE CID_FaceInfoRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_CID_INFO + + T1_FIELD_KEY ( "CIDFontName", cid_font_name, 0 ) + T1_FIELD_FIXED ( "CIDFontVersion", cid_version, 0 ) + T1_FIELD_NUM ( "CIDFontType", cid_font_type, 0 ) + T1_FIELD_STRING( "Registry", registry, 0 ) + T1_FIELD_STRING( "Ordering", ordering, 0 ) + T1_FIELD_NUM ( "Supplement", supplement, 0 ) + T1_FIELD_NUM ( "UIDBase", uid_base, 0 ) + T1_FIELD_NUM ( "CIDMapOffset", cidmap_offset, 0 ) + T1_FIELD_NUM ( "FDBytes", fd_bytes, 0 ) + T1_FIELD_NUM ( "GDBytes", gd_bytes, 0 ) + T1_FIELD_NUM ( "CIDCount", cid_count, 0 ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_FontInfoRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_INFO + + T1_FIELD_STRING( "version", version, 0 ) + T1_FIELD_STRING( "Notice", notice, 0 ) + T1_FIELD_STRING( "FullName", full_name, 0 ) + T1_FIELD_STRING( "FamilyName", family_name, 0 ) + T1_FIELD_STRING( "Weight", weight, 0 ) + T1_FIELD_NUM ( "ItalicAngle", italic_angle, 0 ) + T1_FIELD_BOOL ( "isFixedPitch", is_fixed_pitch, 0 ) + T1_FIELD_NUM ( "UnderlinePosition", underline_position, 0 ) + T1_FIELD_NUM ( "UnderlineThickness", underline_thickness, 0 ) + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_FontExtraRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_EXTRA + + T1_FIELD_NUM ( "FSType", fs_type, 0 ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE CID_FaceDictRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_DICT + + T1_FIELD_NUM ( "PaintType", paint_type, 0 ) + T1_FIELD_NUM ( "FontType", font_type, 0 ) + T1_FIELD_NUM ( "SubrMapOffset", subrmap_offset, 0 ) + T1_FIELD_NUM ( "SDBytes", sd_bytes, 0 ) + T1_FIELD_NUM ( "SubrCount", num_subrs, 0 ) + T1_FIELD_NUM ( "lenBuildCharArray", len_buildchar, 0 ) + T1_FIELD_FIXED( "ForceBoldThreshold", forcebold_threshold, 0 ) + T1_FIELD_FIXED( "StrokeWidth", stroke_width, 0 ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_PrivateRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_PRIVATE + + T1_FIELD_NUM ( "UniqueID", unique_id, 0 ) + T1_FIELD_NUM ( "lenIV", lenIV, 0 ) + T1_FIELD_NUM ( "LanguageGroup", language_group, 0 ) + T1_FIELD_NUM ( "password", password, 0 ) + + T1_FIELD_FIXED_1000( "BlueScale", blue_scale, 0 ) + T1_FIELD_NUM ( "BlueShift", blue_shift, 0 ) + T1_FIELD_NUM ( "BlueFuzz", blue_fuzz, 0 ) + + T1_FIELD_NUM_TABLE ( "BlueValues", blue_values, 14, 0 ) + T1_FIELD_NUM_TABLE ( "OtherBlues", other_blues, 10, 0 ) + T1_FIELD_NUM_TABLE ( "FamilyBlues", family_blues, 14, 0 ) + T1_FIELD_NUM_TABLE ( "FamilyOtherBlues", family_other_blues, 10, 0 ) + + T1_FIELD_NUM_TABLE2( "StdHW", standard_width, 1, 0 ) + T1_FIELD_NUM_TABLE2( "StdVW", standard_height, 1, 0 ) + T1_FIELD_NUM_TABLE2( "MinFeature", min_feature, 2, 0 ) + + T1_FIELD_NUM_TABLE ( "StemSnapH", snap_widths, 12, 0 ) + T1_FIELD_NUM_TABLE ( "StemSnapV", snap_heights, 12, 0 ) + + T1_FIELD_BOOL ( "ForceBold", force_bold, 0 ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE FT_BBox +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_BBOX + + T1_FIELD_BBOX( "FontBBox", xMin, 0 ) + + +/* END */ diff --git a/src/cid/module.mk b/src/cid/module.mk new file mode 100644 index 0000000..ce30bfd --- /dev/null +++ b/src/cid/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 CID module definition +# + + +# Copyright 1996-2000, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += TYPE1CID_DRIVER + +define TYPE1CID_DRIVER +$(OPEN_DRIVER) FT_Driver_ClassRec, t1cid_driver_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)cid $(ECHO_DRIVER_DESC)Postscript CID-keyed fonts, no known extension$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/cid/rules.mk b/src/cid/rules.mk new file mode 100644 index 0000000..f362744 --- /dev/null +++ b/src/cid/rules.mk @@ -0,0 +1,70 @@ +# +# FreeType 2 CID driver configuration rules +# + + +# Copyright 1996-2000, 2001, 2003 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# CID driver directory +# +CID_DIR := $(SRC_DIR)/cid + + +CID_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(CID_DIR)) + + +# CID driver sources (i.e., C files) +# +CID_DRV_SRC := $(CID_DIR)/cidparse.c \ + $(CID_DIR)/cidload.c \ + $(CID_DIR)/cidriver.c \ + $(CID_DIR)/cidgload.c \ + $(CID_DIR)/cidobjs.c + +# CID driver headers +# +CID_DRV_H := $(CID_DRV_SRC:%.c=%.h) \ + $(CID_DIR)/cidtoken.h \ + $(CID_DIR)/ciderrs.h + + +# CID driver object(s) +# +# CID_DRV_OBJ_M is used during `multi' builds +# CID_DRV_OBJ_S is used during `single' builds +# +CID_DRV_OBJ_M := $(CID_DRV_SRC:$(CID_DIR)/%.c=$(OBJ_DIR)/%.$O) +CID_DRV_OBJ_S := $(OBJ_DIR)/type1cid.$O + +# CID driver source file for single build +# +CID_DRV_SRC_S := $(CID_DIR)/type1cid.c + + +# CID driver - single object +# +$(CID_DRV_OBJ_S): $(CID_DRV_SRC_S) $(CID_DRV_SRC) $(FREETYPE_H) $(CID_DRV_H) + $(CID_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(CID_DRV_SRC_S)) + + +# CID driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(CID_DIR)/%.c $(FREETYPE_H) $(CID_DRV_H) + $(CID_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(CID_DRV_OBJ_S) +DRV_OBJS_M += $(CID_DRV_OBJ_M) + + +# EOF diff --git a/src/cid/type1cid.c b/src/cid/type1cid.c new file mode 100644 index 0000000..0b866e9 --- /dev/null +++ b/src/cid/type1cid.c @@ -0,0 +1,29 @@ +/***************************************************************************/ +/* */ +/* type1cid.c */ +/* */ +/* FreeType OpenType driver component (body only). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> +#include "cidparse.c" +#include "cidload.c" +#include "cidobjs.c" +#include "cidriver.c" +#include "cidgload.c" + + +/* END */ diff --git a/src/gxvalid/Jamfile b/src/gxvalid/Jamfile new file mode 100644 index 0000000..88049a6 --- /dev/null +++ b/src/gxvalid/Jamfile @@ -0,0 +1,33 @@ +# FreeType 2 src/gxvalid Jamfile +# +# Copyright 2005 by +# suzuki toshiya, Masatake YAMATO and Red Hat K.K. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) gxvalid ; + + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = gxvcommn gxvfeat gxvbsln gxvtrak gxvopbd gxvprop + gxvmort gxvmort0 gxvmort1 gxvmort2 gxvmort4 gxvmort5 + gxvmorx gxvmorx0 gxvmorx1 gxvmorx2 gxvmorx4 gxvmorx5 + gxvlcar gxvkern gxvmod gxvjust ; + } + else + { + _sources = gxvalid ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/gxvalid Jamfile diff --git a/src/gxvalid/README b/src/gxvalid/README new file mode 100644 index 0000000..28e535b --- /dev/null +++ b/src/gxvalid/README @@ -0,0 +1,532 @@ +gxvalid: TrueType GX validator +============================== + + +1. What is this +--------------- + + `gxvalid' is a module to validate TrueType GX tables: a collection of + additional tables in TrueType font which are used by `QuickDraw GX + Text', Apple Advanced Typography (AAT). In addition, gxvalid can + validates `kern' tables which have been extended for AAT. Like the + otvalid module, gxvalid uses Freetype 2's validator framework + (ftvalid). + + You can link gxvalid with your program; before running your own layout + engine, gxvalid validates a font file. As the result, you can remove + error-checking code from the layout engine. It is also possible to + use gxvalid as a stand-alone font validator; the `ftvalid' test + program included in the ft2demo bundle calls gxvalid internally. + A stand-alone font validator may be useful for font developers. + + This documents documents the following issues. + + - supported TrueType GX tables + - fundamental validation limitations + - permissive error handling of broken GX tables + - `kern' table issue. + + +2. Supported tables +------------------- + + The following GX tables are currently supported. + + bsln + feat + just + kern(*) + lcar + mort + morx + opbd + prop + trak + + The following GX tables are currently unsupported. + + cvar + fdsc + fmtx + fvar + gvar + Zapf + + The following GX tables won't be supported. + + acnt(**) + hsty(***) + + The following undocumented tables in TrueType fonts designed for Apple + platform aren't handled either. + + addg + CVTM + TPNM + umif + + + *) The `kern' validator handles both the classic and the new kern + formats; the former is supported on both Microsoft and Apple + platforms, while the latter is supported on Apple platforms. + + **) `acnt' tables are not supported by currently available Apple font + tools. + + ***) There is one more Apple extension, `hsty', but it is for + Newton-OS, not GX (Newton-OS is a platform by Apple, but it can + use sfnt- housed bitmap fonts only). Therefore, it should be + excluded from `Apple platform' in the context of TrueType. + gxvalid ignores it as Apple font tools do so. + + + We have checked 183 fonts bundled with MacOS 9.1, MacOS 9.2, MacOS + 10.0, MacOS X 10.1, MSIE for MacOS, and AppleWorks 6.0. In addition, + we have checked 67 Dynalab fonts (designed for MacOS) and 189 Ricoh + fonts (designed for Windows and MacOS dual platforms). The number of + fonts including TrueType GX tables are as follows. + + bsln: 76 + feat: 191 + just: 84 + kern: 59 + lcar: 4 + mort: 326 + morx: 19 + opbd: 4 + prop: 114 + trak: 16 + + Dynalab and Ricoh fonts don't have GX tables except of `feat' and + `mort'. + + +3. Fundamental validation limitations +------------------------------------- + + TrueType GX provides layout information to libraries for font + rasterizers and text layout. gxvalid can check whether the layout + data in a font is conformant to the TrueType GX format specified by + Apple. But gxvalid cannot check a how QuickDraw GX/AAT renderer uses + the stored information. + + 3-1. Validation of State Machine activity + ----------------------------------------- + + QuickDraw GX/AAT uses a `State Machine' to provide `stateful' layout + features, and TrueType GX stores the state transition diagram of + this `State Machine' in a `StateTable' data structure. While the + State Machine receives a series of glyph IDs, the State Machine + starts with `start of text' state, walks around various states and + generates various layout information to the renderer, and finally + reaches the `end of text' state. + + gxvalid can check essential errors like: + + - possibility of state transitions to undefined states + - existence of glyph IDs that the State Machine doesn't know how + to handle + - the State Machine cannot compute the layout information from + given diagram + + These errors can be checked within finite steps, and without the + State Machine itself, because these are `expression' errors of state + transition diagram. + + There is no limitation about how long the State Machine walks + around, so validation of the algorithm in the state transition + diagram requires infinite steps, even if we had a State Machine in + gxvalid. Therefore, the following errors and problems cannot be + checked. + + - existence of states which the State Machine never transits to + - the possibility that the State Machine never reaches `end of + text' + - the possibility of stack underflow/overflow in the State Machine + (in ligature and contextual glyph substitutions, the State + Machine can store 16 glyphs onto its stack) + + In addition, gxvalid doesn't check `temporary glyph IDs' used in the + chained State Machines (in `mort' and `morx' tables). If a layout + feature is implemented by a single State Machine, a glyph ID + converted by the State Machine is passed to the glyph renderer, thus + it should not point to an undefined glyph ID. But if a layout + feature is implemented by chained State Machines, a component State + Machine (if it is not the final one) is permitted to generate + undefined glyph IDs for temporary use, because it is handled by next + component State Machine and not by the glyph renderer. To validate + such temporary glyph IDs, gxvalid must stack all undefined glyph IDs + which can occur in the output of the previous State Machine and + search them in the `ClassTable' structure of the current State + Machine. It is too complex to list all possible glyph IDs from the + StateTable, especially from a ligature substitution table. + + 3-2. Validation of relationship between multiple layout features + ---------------------------------------------------------------- + + gxvalid does not validate the relationship between multiple layout + features at all. + + If multiple layout features are defined in TrueType GX tables, + possible interactions, overrides, and conflicts between layout + features are implicitly given in the font too. For example, there + are several predefined spacing control features: + + - Text Spacing (Proportional/Monospace/Half-width/Normal) + - Number Spacing (Monospaced-numbers/Proportional-numbers) + - Kana Spacing (Full-width/Proportional) + - Ideographic Spacing (Full-width/Proportional) + - CJK Roman Spacing (Half-width/Proportional/Default-roman + /Full-width-roman/Proportional) + + If all layout features are independently managed, we can activate + inconsistent typographic rules like `Text Spacing=Monospace' and + `Ideographic Spacing=Proportional' at the same time. + + The combinations of layout features is managed by a 32bit integer + (one bit each for selector setting), so we can define relationships + between up to 32 features, theoretically. But if one feature + setting affects another feature setting, we need typographic + priority rules to validate the relationship. Unfortunately, the + TrueType GX format specification does not give such information even + for predefined features. + + +4. Permissive error handling of broken GX tables +------------------------------------------------ + + When Apple's font rendering system finds an inconsistency, like a + specification violation or an unspecified value in a TrueType GX + table, it does not always return error. In most cases, the rendering + engine silently ignores such wrong values or even whole tables. In + fact, MacOS is shipped with fonts including broken GX/AAT tables, but + no harmful effects due to `officially broken' fonts are observed by + end-users. + + gxvalid is designed to continue the validation process as long as + possible. When gxvalid find wrong values, gxvalid warns it at least, + and takes a fallback procedure if possible. The fallback procedure + depends on the debug level. + + We used the following three tools to investigate Apple's error handling. + + - FontValidator (for MacOS 8.5 - 9.2) resource fork font + - ftxvalidator (for MacOS X 10.1 -) dfont or naked-sfnt + - ftxdumperfuser (for MacOS X 10.1 -) dfont or naked-sfnt + + However, all tests were done on a PowerPC based Macintosh; at present, + we have not checked those tools on a m68k-based Macintosh. + + In total, we checked 183 fonts bundled to MacOS 9.1, MacOS 9.2, MacOS + 10.0, MacOS X 10.1, MSIE for MacOS, and AppleWorks 6.0. These fonts + are distributed officially, but many broken GX/AAT tables were found + by Apple's font tools. In the following, we list typical violation of + the GX specification, in fonts officially distributed with those Apple + systems. + + 4-1. broken BinSrchHeader (19/183) + ---------------------------------- + + `BinSrchHeader' is a header of a data array for m68k platforms to + access memory efficiently. Although there are only two independent + parameters for real (`unitSize' and `nUnits'), BinSrchHeader has + three additional parameters which can be calculated from `unitSize' + and `nUnits', for fast setup. Apple font tools ignore them + silently, so gxvalid warns if it finds and inconsistency, and always + continues validation. The additional parameters are ignored + regardless of the consistency. + + 19 fonts include such inconsistencies; all breaks are in the + BinSrchHeader structure of the `kern' table. + + 4-2. too-short LookupTable (5/183) + ---------------------------------- + + LookupTable format 0 is a simple array to get a value from a given + GID (glyph ID); the index of this array is a GID too. Therefore, + the length of the array is expected to be same as the maximum GID + value defined in the `maxp' table, but there are some fonts whose + LookupTable format 0 is too short to cover all GIDs. FontValidator + ignores this error silently, ftxvalidator and ftxdumperfuser both + warn and continue. Similar problems are found in format 3 subtables + of `kern'. gxvalid warns always and abort if the validation level + is set to FT_VALIDATE_PARANOID. + + 5 fonts include too-short kern format 0 subtables. + 1 font includes too-short kern format 3 subtable. + + 4-3. broken LookupTable format 2 (1/183) + ---------------------------------------- + + LookupTable format 2, subformat 4 covers the GID space by a + collection of segments which are specified by `firstGlyph' and + `lastGlyph'. Some fonts store `firstGlyph' and `lastGlyph' in + reverse order, so the segment specification is broken. Apple font + tools ignore this error silently; a broken segment is ignored as if + it did not exist. gxvalid warns and normalize the segment at + FT_VALIDATE_DEFAULT, or ignore the segment at FT_VALIDATE_TIGHT, or + abort at FT_VALIDATE_PARANOID. + + 1 font includes broken LookupTable format 2, in the `just' table. + + *) It seems that all fonts manufactured by ITC for AppleWorks have + this error. + + 4-4. bad bracketing in glyph property (14/183) + ---------------------------------------------- + + GX/AAT defines a `bracketing' property of the glyphs in the `prop' + table, to control layout features of strings enclosed inside and + outside of brackets. Some fonts give inappropriate bracket + properties to glyphs. Apple font tools warn about this error; + gxvalid warns too and aborts at FT_VALIDATE_PARANOID. + + 14 fonts include wrong bracket properties. + + + 4-5. invalid feature number (117/183) + ------------------------------------- + + The GX/AAT extension can include 255 different layout features, but + popular layout features are predefined (see + http://developer.apple.com/fonts/Registry/index.html). Some fonts + include feature numbers which are incompatible with the predefined + feature registry. + + In our survey, there are 140 fonts including `feat' table. + + a) 67 fonts use a feature number which should not be used. + b) 117 fonts set the wrong feature range (nSetting). This is mostly + found in the `mort' and `morx' tables. + + Apple font tools give no warning, although they cannot recognize + what the feature is. At FT_VALIDATE_DEFAULT, gxvalid warns but + continues in both cases (a, b). At FT_VALIDATE_TIGHT, gxvalid warns + and aborts for (a), but continues for (b). At FT_VALIDATE_PARANOID, + gxvalid warns and aborts in both cases (a, b). + + 4-6. invalid prop version (10/183) + ---------------------------------- + + As most TrueType GX tables, the `prop' table must start with a 32bit + version identifier: 0x00010000, 0x00020000 or 0x00030000. But some + fonts store nonsense binary data instead. When Apple font tools + find them, they abort the processing immediately, and the data which + follows is unhandled. gxvalid does the same. + + 10 fonts include broken `prop' version. + + All of these fonts are classic TrueType fonts for the Japanese + script, manufactured by Apple. + + 4-7. unknown resource name (2/183) + ------------------------------------ + + NOTE: THIS IS NOT A TRUETYPE GX ERROR. + + If a TrueType font is stored in the resource fork or in dfont + format, the data must be tagged as `sfnt' in the resource fork index + to invoke TrueType font handler for the data. But the TrueType font + data in `Keyboard.dfont' is tagged as `kbd', and that in + `LastResort.dfont' is tagged as `lst'. Apple font tools can detect + that the data is in TrueType format and successfully validate them. + Maybe this is possible because they are known to be dfont. The + current implementation of the resource fork driver of FreeType + cannot do that, thus gxvalid cannot validate them. + + 2 fonts use an unknown tag for the TrueType font resource. + +5. `kern' table issues +---------------------- + + In common terminology of TrueType, `kern' is classified as a basic and + platform-independent table. But there are Apple extensions of `kern', + and there is an extension which requires a GX state machine for + contextual kerning. Therefore, gxvalid includes a special validator + for `kern' tables. Unfortunately, there is no exact algorithm to + check Apple's extension, so gxvalid includes a heuristic algorithm to + find the proper validation routines for all possible data formats, + including the data format for Microsoft. By calling + classic_kern_validate() instead of gxv_validate(), you can specify the + `kern' format explicitly. However, current FreeType2 uses Microsoft + `kern' format only, others are ignored (and should be handled in a + library one level higher than FreeType). + + 5-1. History + ------------ + + The original 16bit version of `kern' was designed by Apple in the + pre-GX era, and it was also approved by Microsoft. Afterwards, + Apple designed a new 32bit version of the `kern' table. According + to the documentation, the difference between the 16bit and 32bit + version is only the size of variables in the `kern' header. In the + following, we call the original 16bit version as `classic', and + 32bit version as `new'. + + 5-2. Versions and dialects which should be differentiated + --------------------------------------------------------- + + The `kern' table consists of a table header and several subtables. + The version number which identifies a `classic' or a `new' version + is explicitly written in the table header, but there are + undocumented differences between Microsoft's and Apple's formats. + It is called a `dialect' in the following. There are three cases + which should be handled: the new Apple-dialect, the classic + Apple-dialect, and the classic Microsoft-dialect. An analysis of + the formats and the auto detection algorithm of gxvalid is described + in the following. + + 5-2-1. Version detection: classic and new kern + ---------------------------------------------- + + According to Apple TrueType specification, there are only two + differences between the classic and the new: + + - The `kern' table header starts with the version number. + The classic version starts with 0x0000 (16bit), + the new version starts with 0x00010000 (32bit). + + - In the `kern' table header, the number of subtables follows + the version number. + In the classic version, it is stored as a 16bit value. + In the new version, it is stored as a 32bit value. + + From Apple font tool's output (DumpKERN is also tested in addition + to the three Apple font tools in above), there is another + undocumented difference. In the new version, the subtable header + includes a 16bit variable named `tupleIndex' which does not exist + in the classic version. + + The new version can store all subtable formats (0, 1, 2, and 3), + but the Apple TrueType specification does not mention the subtable + formats available in the classic version. + + 5-2-2. Available subtable formats in classic version + ---------------------------------------------------- + + Although the Apple TrueType specification recommends to use the + classic version in the case if the font is designed for both the + Apple and Microsoft platforms, it does not document the available + subtable formats in the classic version. + + According to the Microsoft TrueType specification, the subtable + format assured for Windows and OS/2 support is only subtable + format 0. The Microsoft TrueType specification also describes + subtable format 2, but does not mention which platforms support + it. Aubtable formats 1, 3, and higher are documented as reserved + for future use. Therefore, the classic version can store subtable + formats 0 and 2, at least. `ttfdump.exe', a font tool provided by + Microsoft, ignores the subtable format written in the subtable + header, and parses the table as if all subtables are in format 0. + + `kern' subtable format 1 uses a StateTable, so it cannot be + utilized without a GX State Machine. Therefore, it is reasonable + to assume that format 1 (and 3) were introduced after Apple had + introduced GX and moved to the new 32bit version. + + 5-2-3. Apple and Microsoft dialects + ----------------------------------- + + The `kern' subtable has a 16bit `coverage' field to describe + kerning attributes, but bit interpretations by Apple and Microsoft + are different: For example, Apple uses bits 0-7 to identify the + subtable, while Microsoft uses bits 8-15. + + In addition, due to the output of DumpKERN and FontValidator, + Apple's bit interpretations of coverage in classic and new version + are incompatible also. In summary, there are three dialects: + classic Apple dialect, classic Microsoft dialect, and new Apple + dialect. The classic Microsoft dialect and the new Apple dialect + are documented by each vendors' TrueType font specification, but + the documentation for classic Apple dialect is not available. + + For example, in the new Apple dialect, bit 15 is documented as + `set to 1 if the kerning is vertical'. On the other hand, in + classic Microsoft dialect, bit 1 is documented as `set to 1 if the + kerning is horizontal'. From the outputs of DumpKERN and + FontValidator, classic Apple dialect recognizes 15 as `set to 1 + when the kerning is horizontal'. From the results of similar + experiments, classic Apple dialect seems to be the Endian reverse + of the classic Microsoft dialect. + + As a conclusion it must be noted that no font tool can identify + classic Apple dialect or classic Microsoft dialect automatically. + + 5-2-4. gxvalid auto dialect detection algorithm + ----------------------------------------------- + + The first 16 bits of the `kern' table are enough to identify the + version: + + - if the first 16 bits are 0x0000, the `kern' table is in + classic Apple dialect or classic Microsoft dialect + - if the first 16 bits are 0x0001, and next 16 bits are 0x0000, + the kern table is in new Apple dialect. + + If the `kern' table is a classic one, the 16bit `coverage' field + is checked next. Firstly, the coverage bits are decoded for the + classic Apple dialect using the following bit masks (this is based + on DumpKERN output): + + 0x8000: 1=horizontal, 0=vertical + 0x4000: not used + 0x2000: 1=cross-stream, 0=normal + 0x1FF0: reserved + 0x000F: subtable format + + If any of reserved bits are set or the subtable bits is + interpreted as format 1 or 3, we take it as `impossible in classic + Apple dialect' and retry, using the classic Microsoft dialect. + + The most popular coverage in new Apple-dialect: 0x8000, + The most popular coverage in classic Apple-dialect: 0x0000, + The most popular coverage in classic Microsoft dialect: 0x0001. + + 5-3. Tested fonts + ----------------- + + We checked 59 fonts bundled with MacOS and 38 fonts bundled with + Windows, where all font include a `kern' table. + + - fonts bundled with MacOS + * new Apple dialect + format 0: 18 + format 2: 1 + format 3: 1 + * classic Apple dialect + format 0: 14 + * classic Microsoft dialect + format 0: 15 + + - fonts bundled with Windows + * classic Microsoft dialect + format 0: 38 + + It looks strange that classic Microsoft-dialect fonts are bundled to + MacOS: they come from MSIE for MacOS, except of MarkerFelt.dfont. + + + ACKNOWLEDGEMENT + --------------- + + Some parts of gxvalid are derived from both the `gxlayout' module and + the `otvalid' module. Development of gxlayout was supported by the + Information-technology Promotion Agency(IPA), Japan. + + The detailed analysis of undefined glyph ID utilization in `mort' and + `morx' tables is provided by George Williams. + +------------------------------------------------------------------------ + +Copyright 2004, 2005, 2007 by +suzuki toshiya, Masatake YAMATO, Red hat K.K., +David Turner, Robert Wilhelm, and Werner Lemberg. + +This file is part of the FreeType project, and may only be used, +modified, and distributed under the terms of the FreeType project +license, LICENSE.TXT. By continuing to use, modify, or distribute this +file you indicate that you have read the license and understand and +accept it fully. + + +--- end of README --- diff --git a/src/gxvalid/gxvalid.c b/src/gxvalid/gxvalid.c new file mode 100644 index 0000000..bc36e67 --- /dev/null +++ b/src/gxvalid/gxvalid.c @@ -0,0 +1,46 @@ +/***************************************************************************/ +/* */ +/* gxvalid.c */ +/* */ +/* FreeType validator for TrueTypeGX/AAT tables (body only). */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> + +#include "gxvfeat.c" +#include "gxvcommn.c" +#include "gxvbsln.c" +#include "gxvtrak.c" +#include "gxvjust.c" +#include "gxvmort.c" +#include "gxvmort0.c" +#include "gxvmort1.c" +#include "gxvmort2.c" +#include "gxvmort4.c" +#include "gxvmort5.c" +#include "gxvmorx.c" +#include "gxvmorx0.c" +#include "gxvmorx1.c" +#include "gxvmorx2.c" +#include "gxvmorx4.c" +#include "gxvmorx5.c" +#include "gxvkern.c" +#include "gxvopbd.c" +#include "gxvprop.c" +#include "gxvlcar.c" +#include "gxvmod.c" + + +/* END */ diff --git a/src/gxvalid/gxvalid.h b/src/gxvalid/gxvalid.h new file mode 100644 index 0000000..27be9ec --- /dev/null +++ b/src/gxvalid/gxvalid.h @@ -0,0 +1,107 @@ +/***************************************************************************/ +/* */ +/* gxvalid.h */ +/* */ +/* TrueTyeeGX/AAT table validation (specification only). */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __GXVALID_H__ +#define __GXVALID_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + +#include "gxverror.h" /* must come before FT_INTERNAL_VALIDATE_H */ + +#include FT_INTERNAL_VALIDATE_H +#include FT_INTERNAL_STREAM_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( void ) + gxv_feat_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + + FT_LOCAL( void ) + gxv_bsln_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + + FT_LOCAL( void ) + gxv_trak_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_just_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_morx_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_kern_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_kern_validate_classic( FT_Bytes table, + FT_Face face, + FT_Int dialect_flags, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_opbd_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_prop_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + FT_LOCAL( void ) + gxv_lcar_validate( FT_Bytes table, + FT_Face face, + FT_Validator valid ); + + +FT_END_HEADER + + +#endif /* __GXVALID_H__ */ + + +/* END */ diff --git a/src/gxvalid/gxvbsln.c b/src/gxvalid/gxvbsln.c new file mode 100644 index 0000000..3d10031 --- /dev/null +++ b/src/gxvalid/gxvbsln.c @@ -0,0 +1,333 @@ +/***************************************************************************/ +/* */ +/* gxvbsln.c */ +/* */ +/* TrueTypeGX/AAT bsln table validation (body). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvbsln + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define GXV_BSLN_VALUE_COUNT 32 +#define GXV_BSLN_VALUE_EMPTY 0xFFFFU + + + typedef struct GXV_bsln_DataRec_ + { + FT_Bytes ctlPoints_p; + FT_UShort defaultBaseline; + + } GXV_bsln_DataRec, *GXV_bsln_Data; + + +#define GXV_BSLN_DATA( field ) GXV_TABLE_DATA( bsln, field ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_bsln_LookupValue_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_UShort v = value_p->u; + FT_UShort* ctlPoints; + + FT_UNUSED( glyph ); + + + GXV_NAME_ENTER( "lookup value" ); + + if ( v >= GXV_BSLN_VALUE_COUNT ) + FT_INVALID_DATA; + + ctlPoints = (FT_UShort*)GXV_BSLN_DATA( ctlPoints_p ); + if ( ctlPoints && ctlPoints[v] == GXV_BSLN_VALUE_EMPTY ) + FT_INVALID_DATA; + + GXV_EXIT; + } + + + /* + +===============+ --------+ + | lookup header | | + +===============+ | + | BinSrchHeader | | + +===============+ | + | lastGlyph[0] | | + +---------------+ | + | firstGlyph[0] | | head of lookup table + +---------------+ | + + | offset[0] | -> | offset [byte] + +===============+ | + + | lastGlyph[1] | | (glyphID - firstGlyph) * 2 [byte] + +---------------+ | + | firstGlyph[1] | | + +---------------+ | + | offset[1] | | + +===============+ | + | + ... | + | + 16bit value array | + +===============+ | + | value | <-------+ + ... + */ + + static GXV_LookupValueDesc + gxv_bsln_LookupFmt4_transit( FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + FT_Bytes p; + FT_Bytes limit; + FT_UShort offset; + GXV_LookupValueDesc value; + + /* XXX: check range ? */ + offset = (FT_UShort)( base_value_p->u + + ( relative_gindex * sizeof ( FT_UShort ) ) ); + + p = valid->lookuptbl_head + offset; + limit = lookuptbl_limit; + GXV_LIMIT_CHECK( 2 ); + + value.u = FT_NEXT_USHORT( p ); + + return value; + } + + + static void + gxv_bsln_parts_fmt0_validate( FT_Bytes tables, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = tables; + + + GXV_NAME_ENTER( "parts format 0" ); + + /* deltas */ + GXV_LIMIT_CHECK( 2 * GXV_BSLN_VALUE_COUNT ); + + valid->table_data = NULL; /* No ctlPoints here. */ + + GXV_EXIT; + } + + + static void + gxv_bsln_parts_fmt1_validate( FT_Bytes tables, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = tables; + + + GXV_NAME_ENTER( "parts format 1" ); + + /* deltas */ + gxv_bsln_parts_fmt0_validate( p, limit, valid ); + + /* mappingData */ + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_bsln_LookupValue_validate; + valid->lookupfmt4_trans = gxv_bsln_LookupFmt4_transit; + gxv_LookupTable_validate( p + 2 * GXV_BSLN_VALUE_COUNT, + limit, + valid ); + + GXV_EXIT; + } + + + static void + gxv_bsln_parts_fmt2_validate( FT_Bytes tables, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = tables; + + FT_UShort stdGlyph; + FT_UShort ctlPoint; + FT_Int i; + + FT_UShort defaultBaseline = GXV_BSLN_DATA( defaultBaseline ); + + + GXV_NAME_ENTER( "parts format 2" ); + + GXV_LIMIT_CHECK( 2 + ( 2 * GXV_BSLN_VALUE_COUNT ) ); + + /* stdGlyph */ + stdGlyph = FT_NEXT_USHORT( p ); + GXV_TRACE(( " (stdGlyph = %u)\n", stdGlyph )); + + gxv_glyphid_validate( stdGlyph, valid ); + + /* Record the position of ctlPoints */ + GXV_BSLN_DATA( ctlPoints_p ) = p; + + /* ctlPoints */ + for ( i = 0; i < GXV_BSLN_VALUE_COUNT; i++ ) + { + ctlPoint = FT_NEXT_USHORT( p ); + if ( ctlPoint == GXV_BSLN_VALUE_EMPTY ) + { + if ( i == defaultBaseline ) + FT_INVALID_DATA; + } + else + gxv_ctlPoint_validate( stdGlyph, (FT_Short)ctlPoint, valid ); + } + + GXV_EXIT; + } + + + static void + gxv_bsln_parts_fmt3_validate( FT_Bytes tables, + FT_Bytes limit, + GXV_Validator valid) + { + FT_Bytes p = tables; + + + GXV_NAME_ENTER( "parts format 3" ); + + /* stdGlyph + ctlPoints */ + gxv_bsln_parts_fmt2_validate( p, limit, valid ); + + /* mappingData */ + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_bsln_LookupValue_validate; + valid->lookupfmt4_trans = gxv_bsln_LookupFmt4_transit; + gxv_LookupTable_validate( p + ( 2 + 2 * GXV_BSLN_VALUE_COUNT ), + limit, + valid ); + + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** bsln TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_bsln_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + + GXV_bsln_DataRec bslnrec; + GXV_bsln_Data bsln = &bslnrec; + + FT_Bytes p = table; + FT_Bytes limit = 0; + + FT_ULong version; + FT_UShort format; + FT_UShort defaultBaseline; + + GXV_Validate_Func fmt_funcs_table [] = + { + gxv_bsln_parts_fmt0_validate, + gxv_bsln_parts_fmt1_validate, + gxv_bsln_parts_fmt2_validate, + gxv_bsln_parts_fmt3_validate, + }; + + + valid->root = ftvalid; + valid->table_data = bsln; + valid->face = face; + + FT_TRACE3(( "validating `bsln' table\n" )); + GXV_INIT; + + + GXV_LIMIT_CHECK( 4 + 2 + 2 ); + version = FT_NEXT_ULONG( p ); + format = FT_NEXT_USHORT( p ); + defaultBaseline = FT_NEXT_USHORT( p ); + + /* only version 1.0 is defined (1996) */ + if ( version != 0x00010000UL ) + FT_INVALID_FORMAT; + + /* only format 1, 2, 3 are defined (1996) */ + GXV_TRACE(( " (format = %d)\n", format )); + if ( format > 3 ) + FT_INVALID_FORMAT; + + if ( defaultBaseline > 31 ) + FT_INVALID_FORMAT; + + bsln->defaultBaseline = defaultBaseline; + + fmt_funcs_table[format]( p, limit, valid ); + + FT_TRACE4(( "\n" )); + } + + +/* arch-tag: ebe81143-fdaa-4c68-a4d1-b57227daa3bc + (do not change this comment) */ + + +/* END */ diff --git a/src/gxvalid/gxvcommn.c b/src/gxvalid/gxvcommn.c new file mode 100644 index 0000000..72efd6f --- /dev/null +++ b/src/gxvalid/gxvcommn.c @@ -0,0 +1,1744 @@ +/***************************************************************************/ +/* */ +/* gxvcommn.c */ +/* */ +/* TrueTypeGX/AAT common tables validation (body). */ +/* */ +/* Copyright 2004, 2005, 2009, 2010 */ +/* by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvcommon + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** 16bit offset sorter *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static int + gxv_compare_ushort_offset( FT_UShort* a, + FT_UShort* b ) + { + if ( *a < *b ) + return -1; + else if ( *a > *b ) + return 1; + else + return 0; + } + + + FT_LOCAL_DEF( void ) + gxv_set_length_by_ushort_offset( FT_UShort* offset, + FT_UShort** length, + FT_UShort* buff, + FT_UInt nmemb, + FT_UShort limit, + GXV_Validator valid ) + { + FT_UInt i; + + + for ( i = 0; i < nmemb; i++ ) + *(length[i]) = 0; + + for ( i = 0; i < nmemb; i++ ) + buff[i] = offset[i]; + buff[nmemb] = limit; + + ft_qsort( buff, ( nmemb + 1 ), sizeof ( FT_UShort ), + ( int(*)(const void*, const void*) )gxv_compare_ushort_offset ); + + if ( buff[nmemb] > limit ) + FT_INVALID_OFFSET; + + for ( i = 0; i < nmemb; i++ ) + { + FT_UInt j; + + + for ( j = 0; j < nmemb; j++ ) + if ( buff[j] == offset[i] ) + break; + + if ( j == nmemb ) + FT_INVALID_OFFSET; + + *(length[i]) = (FT_UShort)( buff[j + 1] - buff[j] ); + + if ( 0 != offset[i] && 0 == *(length[i]) ) + FT_INVALID_OFFSET; + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** 32bit offset sorter *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static int + gxv_compare_ulong_offset( FT_ULong* a, + FT_ULong* b ) + { + if ( *a < *b ) + return -1; + else if ( *a > *b ) + return 1; + else + return 0; + } + + + FT_LOCAL_DEF( void ) + gxv_set_length_by_ulong_offset( FT_ULong* offset, + FT_ULong** length, + FT_ULong* buff, + FT_UInt nmemb, + FT_ULong limit, + GXV_Validator valid) + { + FT_UInt i; + + + for ( i = 0; i < nmemb; i++ ) + *(length[i]) = 0; + + for ( i = 0; i < nmemb; i++ ) + buff[i] = offset[i]; + buff[nmemb] = limit; + + ft_qsort( buff, ( nmemb + 1 ), sizeof ( FT_ULong ), + ( int(*)(const void*, const void*) )gxv_compare_ulong_offset ); + + if ( buff[nmemb] > limit ) + FT_INVALID_OFFSET; + + for ( i = 0; i < nmemb; i++ ) + { + FT_UInt j; + + + for ( j = 0; j < nmemb; j++ ) + if ( buff[j] == offset[i] ) + break; + + if ( j == nmemb ) + FT_INVALID_OFFSET; + + *(length[i]) = buff[j + 1] - buff[j]; + + if ( 0 != offset[i] && 0 == *(length[i]) ) + FT_INVALID_OFFSET; + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** scan value array and get min & max *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( void ) + gxv_array_getlimits_byte( FT_Bytes table, + FT_Bytes limit, + FT_Byte* min, + FT_Byte* max, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + *min = 0xFF; + *max = 0x00; + + while ( p < limit ) + { + FT_Byte val; + + + GXV_LIMIT_CHECK( 1 ); + val = FT_NEXT_BYTE( p ); + + *min = (FT_Byte)FT_MIN( *min, val ); + *max = (FT_Byte)FT_MAX( *max, val ); + } + + valid->subtable_length = p - table; + } + + + FT_LOCAL_DEF( void ) + gxv_array_getlimits_ushort( FT_Bytes table, + FT_Bytes limit, + FT_UShort* min, + FT_UShort* max, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + *min = 0xFFFFU; + *max = 0x0000; + + while ( p < limit ) + { + FT_UShort val; + + + GXV_LIMIT_CHECK( 2 ); + val = FT_NEXT_USHORT( p ); + + *min = (FT_Byte)FT_MIN( *min, val ); + *max = (FT_Byte)FT_MAX( *max, val ); + } + + valid->subtable_length = p - table; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BINSEARCHHEADER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct GXV_BinSrchHeader_ + { + FT_UShort unitSize; + FT_UShort nUnits; + FT_UShort searchRange; + FT_UShort entrySelector; + FT_UShort rangeShift; + + } GXV_BinSrchHeader; + + + static void + gxv_BinSrchHeader_check_consistency( GXV_BinSrchHeader* binSrchHeader, + GXV_Validator valid ) + { + FT_UShort searchRange; + FT_UShort entrySelector; + FT_UShort rangeShift; + + + if ( binSrchHeader->unitSize == 0 ) + FT_INVALID_DATA; + + if ( binSrchHeader->nUnits == 0 ) + { + if ( binSrchHeader->searchRange == 0 && + binSrchHeader->entrySelector == 0 && + binSrchHeader->rangeShift == 0 ) + return; + else + FT_INVALID_DATA; + } + + for ( searchRange = 1, entrySelector = 1; + ( searchRange * 2 ) <= binSrchHeader->nUnits && + searchRange < 0x8000U; + searchRange *= 2, entrySelector++ ) + ; + + entrySelector--; + searchRange = (FT_UShort)( searchRange * binSrchHeader->unitSize ); + rangeShift = (FT_UShort)( binSrchHeader->nUnits * binSrchHeader->unitSize + - searchRange ); + + if ( searchRange != binSrchHeader->searchRange || + entrySelector != binSrchHeader->entrySelector || + rangeShift != binSrchHeader->rangeShift ) + { + GXV_TRACE(( "Inconsistency found in BinSrchHeader\n" )); + GXV_TRACE(( "originally: unitSize=%d, nUnits=%d, " + "searchRange=%d, entrySelector=%d, " + "rangeShift=%d\n", + binSrchHeader->unitSize, binSrchHeader->nUnits, + binSrchHeader->searchRange, binSrchHeader->entrySelector, + binSrchHeader->rangeShift )); + GXV_TRACE(( "calculated: unitSize=%d, nUnits=%d, " + "searchRange=%d, entrySelector=%d, " + "rangeShift=%d\n", + binSrchHeader->unitSize, binSrchHeader->nUnits, + searchRange, entrySelector, rangeShift )); + + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + } + + + /* + * parser & validator of BinSrchHeader + * which is used in LookupTable format 2, 4, 6. + * + * Essential parameters (unitSize, nUnits) are returned by + * given pointer, others (searchRange, entrySelector, rangeShift) + * can be calculated by essential parameters, so they are just + * validated and discarded. + * + * However, wrong values in searchRange, entrySelector, rangeShift + * won't cause fatal errors, because these parameters might be + * only used in old m68k font driver in MacOS. + * -- suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp> + */ + + FT_LOCAL_DEF( void ) + gxv_BinSrchHeader_validate( FT_Bytes table, + FT_Bytes limit, + FT_UShort* unitSize_p, + FT_UShort* nUnits_p, + GXV_Validator valid ) + { + FT_Bytes p = table; + GXV_BinSrchHeader binSrchHeader; + + + GXV_NAME_ENTER( "BinSrchHeader validate" ); + + if ( *unitSize_p == 0 ) + { + GXV_LIMIT_CHECK( 2 ); + binSrchHeader.unitSize = FT_NEXT_USHORT( p ); + } + else + binSrchHeader.unitSize = *unitSize_p; + + if ( *nUnits_p == 0 ) + { + GXV_LIMIT_CHECK( 2 ); + binSrchHeader.nUnits = FT_NEXT_USHORT( p ); + } + else + binSrchHeader.nUnits = *nUnits_p; + + GXV_LIMIT_CHECK( 2 + 2 + 2 ); + binSrchHeader.searchRange = FT_NEXT_USHORT( p ); + binSrchHeader.entrySelector = FT_NEXT_USHORT( p ); + binSrchHeader.rangeShift = FT_NEXT_USHORT( p ); + GXV_TRACE(( "nUnits %d\n", binSrchHeader.nUnits )); + + gxv_BinSrchHeader_check_consistency( &binSrchHeader, valid ); + + if ( *unitSize_p == 0 ) + *unitSize_p = binSrchHeader.unitSize; + + if ( *nUnits_p == 0 ) + *nUnits_p = binSrchHeader.nUnits; + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LOOKUP TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define GXV_LOOKUP_VALUE_LOAD( P, SIGNSPEC ) \ + ( P += 2, gxv_lookup_value_load( P - 2, SIGNSPEC ) ) + + static GXV_LookupValueDesc + gxv_lookup_value_load( FT_Bytes p, + int signspec ) + { + GXV_LookupValueDesc v; + + + if ( signspec == GXV_LOOKUPVALUE_UNSIGNED ) + v.u = FT_NEXT_USHORT( p ); + else + v.s = FT_NEXT_SHORT( p ); + + return v; + } + + +#define GXV_UNITSIZE_VALIDATE( FORMAT, UNITSIZE, NUNITS, CORRECTSIZE ) \ + FT_BEGIN_STMNT \ + if ( UNITSIZE != CORRECTSIZE ) \ + { \ + FT_ERROR(( "unitSize=%d differs from" \ + " expected unitSize=%d" \ + " in LookupTable %s\n", \ + UNITSIZE, CORRECTSIZE, FORMAT )); \ + if ( UNITSIZE != 0 && NUNITS != 0 ) \ + { \ + FT_ERROR(( " cannot validate anymore\n" )); \ + FT_INVALID_FORMAT; \ + } \ + else \ + FT_ERROR(( " forcibly continues\n" )); \ + } \ + FT_END_STMNT + + + /* ================= Simple Array Format 0 Lookup Table ================ */ + static void + gxv_LookupTable_fmt0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort i; + + GXV_LookupValueDesc value; + + + GXV_NAME_ENTER( "LookupTable format 0" ); + + GXV_LIMIT_CHECK( 2 * valid->face->num_glyphs ); + + for ( i = 0; i < valid->face->num_glyphs; i++ ) + { + GXV_LIMIT_CHECK( 2 ); + if ( p + 2 >= limit ) /* some fonts have too-short fmt0 array */ + { + GXV_TRACE(( "too short, glyphs %d - %d are missing\n", + i, valid->face->num_glyphs )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + break; + } + + value = GXV_LOOKUP_VALUE_LOAD( p, valid->lookupval_sign ); + valid->lookupval_func( i, &value, valid ); + } + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + /* ================= Segment Single Format 2 Loolup Table ============== */ + /* + * Apple spec says: + * + * To guarantee that a binary search terminates, you must include one or + * more special `end of search table' values at the end of the data to + * be searched. The number of termination values that need to be + * included is table-specific. The value that indicates binary search + * termination is 0xFFFF. + * + * The problem is that nUnits does not include this end-marker. It's + * quite difficult to discriminate whether the following 0xFFFF comes from + * the end-marker or some next data. + * + * -- suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp> + */ + static void + gxv_LookupTable_fmt2_skip_endmarkers( FT_Bytes table, + FT_UShort unitSize, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + while ( ( p + 4 ) < valid->root->limit ) + { + if ( p[0] != 0xFF || p[1] != 0xFF || /* lastGlyph */ + p[2] != 0xFF || p[3] != 0xFF ) /* firstGlyph */ + break; + p += unitSize; + } + + valid->subtable_length = p - table; + } + + + static void + gxv_LookupTable_fmt2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort gid; + + FT_UShort unitSize; + FT_UShort nUnits; + FT_UShort unit; + FT_UShort lastGlyph; + FT_UShort firstGlyph; + GXV_LookupValueDesc value; + + + GXV_NAME_ENTER( "LookupTable format 2" ); + + unitSize = nUnits = 0; + gxv_BinSrchHeader_validate( p, limit, &unitSize, &nUnits, valid ); + p += valid->subtable_length; + + GXV_UNITSIZE_VALIDATE( "format2", unitSize, nUnits, 6 ); + + for ( unit = 0, gid = 0; unit < nUnits; unit++ ) + { + GXV_LIMIT_CHECK( 2 + 2 + 2 ); + lastGlyph = FT_NEXT_USHORT( p ); + firstGlyph = FT_NEXT_USHORT( p ); + value = GXV_LOOKUP_VALUE_LOAD( p, valid->lookupval_sign ); + + gxv_glyphid_validate( firstGlyph, valid ); + gxv_glyphid_validate( lastGlyph, valid ); + + if ( lastGlyph < gid ) + { + GXV_TRACE(( "reverse ordered segment specification:" + " lastGlyph[%d]=%d < lastGlyph[%d]=%d\n", + unit, lastGlyph, unit - 1 , gid )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + + if ( lastGlyph < firstGlyph ) + { + GXV_TRACE(( "reverse ordered range specification at unit %d:", + " lastGlyph %d < firstGlyph %d ", + unit, lastGlyph, firstGlyph )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + + if ( valid->root->level == FT_VALIDATE_TIGHT ) + continue; /* ftxvalidator silently skips such an entry */ + + FT_TRACE4(( "continuing with exchanged values\n" )); + gid = firstGlyph; + firstGlyph = lastGlyph; + lastGlyph = gid; + } + + for ( gid = firstGlyph; gid <= lastGlyph; gid++ ) + valid->lookupval_func( gid, &value, valid ); + } + + gxv_LookupTable_fmt2_skip_endmarkers( p, unitSize, valid ); + p += valid->subtable_length; + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + /* ================= Segment Array Format 4 Lookup Table =============== */ + static void + gxv_LookupTable_fmt4_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort unit; + FT_UShort gid; + + FT_UShort unitSize; + FT_UShort nUnits; + FT_UShort lastGlyph; + FT_UShort firstGlyph; + GXV_LookupValueDesc base_value; + GXV_LookupValueDesc value; + + + GXV_NAME_ENTER( "LookupTable format 4" ); + + unitSize = nUnits = 0; + gxv_BinSrchHeader_validate( p, limit, &unitSize, &nUnits, valid ); + p += valid->subtable_length; + + GXV_UNITSIZE_VALIDATE( "format4", unitSize, nUnits, 6 ); + + for ( unit = 0, gid = 0; unit < nUnits; unit++ ) + { + GXV_LIMIT_CHECK( 2 + 2 ); + lastGlyph = FT_NEXT_USHORT( p ); + firstGlyph = FT_NEXT_USHORT( p ); + + gxv_glyphid_validate( firstGlyph, valid ); + gxv_glyphid_validate( lastGlyph, valid ); + + if ( lastGlyph < gid ) + { + GXV_TRACE(( "reverse ordered segment specification:" + " lastGlyph[%d]=%d < lastGlyph[%d]=%d\n", + unit, lastGlyph, unit - 1 , gid )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + + if ( lastGlyph < firstGlyph ) + { + GXV_TRACE(( "reverse ordered range specification at unit %d:", + " lastGlyph %d < firstGlyph %d ", + unit, lastGlyph, firstGlyph )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + + if ( valid->root->level == FT_VALIDATE_TIGHT ) + continue; /* ftxvalidator silently skips such an entry */ + + FT_TRACE4(( "continuing with exchanged values\n" )); + gid = firstGlyph; + firstGlyph = lastGlyph; + lastGlyph = gid; + } + + GXV_LIMIT_CHECK( 2 ); + base_value = GXV_LOOKUP_VALUE_LOAD( p, GXV_LOOKUPVALUE_UNSIGNED ); + + for ( gid = firstGlyph; gid <= lastGlyph; gid++ ) + { + value = valid->lookupfmt4_trans( (FT_UShort)( gid - firstGlyph ), + &base_value, + limit, + valid ); + + valid->lookupval_func( gid, &value, valid ); + } + } + + gxv_LookupTable_fmt2_skip_endmarkers( p, unitSize, valid ); + p += valid->subtable_length; + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + /* ================= Segment Table Format 6 Lookup Table =============== */ + static void + gxv_LookupTable_fmt6_skip_endmarkers( FT_Bytes table, + FT_UShort unitSize, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + while ( p < valid->root->limit ) + { + if ( p[0] != 0xFF || p[1] != 0xFF ) + break; + p += unitSize; + } + + valid->subtable_length = p - table; + } + + + static void + gxv_LookupTable_fmt6_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort unit; + FT_UShort prev_glyph; + + FT_UShort unitSize; + FT_UShort nUnits; + FT_UShort glyph; + GXV_LookupValueDesc value; + + + GXV_NAME_ENTER( "LookupTable format 6" ); + + unitSize = nUnits = 0; + gxv_BinSrchHeader_validate( p, limit, &unitSize, &nUnits, valid ); + p += valid->subtable_length; + + GXV_UNITSIZE_VALIDATE( "format6", unitSize, nUnits, 4 ); + + for ( unit = 0, prev_glyph = 0; unit < nUnits; unit++ ) + { + GXV_LIMIT_CHECK( 2 + 2 ); + glyph = FT_NEXT_USHORT( p ); + value = GXV_LOOKUP_VALUE_LOAD( p, valid->lookupval_sign ); + + if ( gxv_glyphid_validate( glyph, valid ) ) + GXV_TRACE(( " endmarker found within defined range" + " (entry %d < nUnits=%d)\n", + unit, nUnits )); + + if ( prev_glyph > glyph ) + { + GXV_TRACE(( "current gid 0x%04x < previous gid 0x%04x\n", + glyph, prev_glyph )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + prev_glyph = glyph; + + valid->lookupval_func( glyph, &value, valid ); + } + + gxv_LookupTable_fmt6_skip_endmarkers( p, unitSize, valid ); + p += valid->subtable_length; + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + /* ================= Trimmed Array Format 8 Lookup Table =============== */ + static void + gxv_LookupTable_fmt8_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort i; + + GXV_LookupValueDesc value; + FT_UShort firstGlyph; + FT_UShort glyphCount; + + + GXV_NAME_ENTER( "LookupTable format 8" ); + + /* firstGlyph + glyphCount */ + GXV_LIMIT_CHECK( 2 + 2 ); + firstGlyph = FT_NEXT_USHORT( p ); + glyphCount = FT_NEXT_USHORT( p ); + + gxv_glyphid_validate( firstGlyph, valid ); + gxv_glyphid_validate( (FT_UShort)( firstGlyph + glyphCount ), valid ); + + /* valueArray */ + for ( i = 0; i < glyphCount; i++ ) + { + GXV_LIMIT_CHECK( 2 ); + value = GXV_LOOKUP_VALUE_LOAD( p, valid->lookupval_sign ); + valid->lookupval_func( (FT_UShort)( firstGlyph + i ), &value, valid ); + } + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_LookupTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort format; + + GXV_Validate_Func fmt_funcs_table[] = + { + gxv_LookupTable_fmt0_validate, /* 0 */ + NULL, /* 1 */ + gxv_LookupTable_fmt2_validate, /* 2 */ + NULL, /* 3 */ + gxv_LookupTable_fmt4_validate, /* 4 */ + NULL, /* 5 */ + gxv_LookupTable_fmt6_validate, /* 6 */ + NULL, /* 7 */ + gxv_LookupTable_fmt8_validate, /* 8 */ + }; + + GXV_Validate_Func func; + + + GXV_NAME_ENTER( "LookupTable" ); + + /* lookuptbl_head may be used in fmt4 transit function. */ + valid->lookuptbl_head = table; + + /* format */ + GXV_LIMIT_CHECK( 2 ); + format = FT_NEXT_USHORT( p ); + GXV_TRACE(( " (format %d)\n", format )); + + if ( format > 8 ) + FT_INVALID_FORMAT; + + func = fmt_funcs_table[format]; + if ( func == NULL ) + FT_INVALID_FORMAT; + + func( p, limit, valid ); + p += valid->subtable_length; + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Glyph ID *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( FT_Int ) + gxv_glyphid_validate( FT_UShort gid, + GXV_Validator valid ) + { + FT_Face face; + + + if ( gid == 0xFFFFU ) + { + GXV_EXIT; + return 1; + } + + face = valid->face; + if ( face->num_glyphs < gid ) + { + GXV_TRACE(( " gxv_glyphid_check() gid overflow: num_glyphs %d < %d\n", + face->num_glyphs, gid )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + + return 0; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CONTROL POINT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_ctlPoint_validate( FT_UShort gid, + FT_Short ctl_point, + GXV_Validator valid ) + { + FT_Face face; + FT_Error error; + + FT_GlyphSlot glyph; + FT_Outline outline; + short n_points; + + + face = valid->face; + + error = FT_Load_Glyph( face, + gid, + FT_LOAD_NO_BITMAP | FT_LOAD_IGNORE_TRANSFORM ); + if ( error ) + FT_INVALID_GLYPH_ID; + + glyph = face->glyph; + outline = glyph->outline; + n_points = outline.n_points; + + + if ( !( ctl_point < n_points ) ) + FT_INVALID_DATA; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SFNT NAME *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_sfntName_validate( FT_UShort name_index, + FT_UShort min_index, + FT_UShort max_index, + GXV_Validator valid ) + { + FT_SfntName name; + FT_UInt i; + FT_UInt nnames; + + + GXV_NAME_ENTER( "sfntName" ); + + if ( name_index < min_index || max_index < name_index ) + FT_INVALID_FORMAT; + + nnames = FT_Get_Sfnt_Name_Count( valid->face ); + for ( i = 0; i < nnames; i++ ) + { + if ( FT_Get_Sfnt_Name( valid->face, i, &name ) != GXV_Err_Ok ) + continue ; + + if ( name.name_id == name_index ) + goto Out; + } + + GXV_TRACE(( " nameIndex = %d (UNTITLED)\n", name_index )); + FT_INVALID_DATA; + goto Exit; /* make compiler happy */ + + Out: + FT_TRACE1(( " nameIndex = %d (", name_index )); + GXV_TRACE_HEXDUMP_SFNTNAME( name ); + FT_TRACE1(( ")\n" )); + + Exit: + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** STATE TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* -------------------------- Class Table --------------------------- */ + + /* + * highestClass specifies how many classes are defined in this + * Class Subtable. Apple spec does not mention whether undefined + * holes in the class (e.g.: 0-3 are predefined, 4 is unused, 5 is used) + * are permitted. At present, holes in a defined class are not checked. + * -- suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp> + */ + + static void + gxv_ClassTable_validate( FT_Bytes table, + FT_UShort* length_p, + FT_UShort stateSize, + FT_Byte* maxClassID_p, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_Bytes limit = table + *length_p; + FT_UShort firstGlyph; + FT_UShort nGlyphs; + + + GXV_NAME_ENTER( "ClassTable" ); + + *maxClassID_p = 3; /* Classes 0, 2, and 3 are predefined */ + + GXV_LIMIT_CHECK( 2 + 2 ); + firstGlyph = FT_NEXT_USHORT( p ); + nGlyphs = FT_NEXT_USHORT( p ); + + GXV_TRACE(( " (firstGlyph = %d, nGlyphs = %d)\n", firstGlyph, nGlyphs )); + + if ( !nGlyphs ) + goto Out; + + gxv_glyphid_validate( (FT_UShort)( firstGlyph + nGlyphs ), valid ); + + { + FT_Byte nGlyphInClass[256]; + FT_Byte classID; + FT_UShort i; + + + ft_memset( nGlyphInClass, 0, 256 ); + + + for ( i = 0; i < nGlyphs; i++ ) + { + GXV_LIMIT_CHECK( 1 ); + classID = FT_NEXT_BYTE( p ); + switch ( classID ) + { + /* following classes should not appear in class array */ + case 0: /* end of text */ + case 2: /* out of bounds */ + case 3: /* end of line */ + FT_INVALID_DATA; + break; + + case 1: /* out of bounds */ + default: /* user-defined: 4 - ( stateSize - 1 ) */ + if ( classID >= stateSize ) + FT_INVALID_DATA; /* assign glyph to undefined state */ + + nGlyphInClass[classID]++; + break; + } + } + *length_p = (FT_UShort)( p - table ); + + /* scan max ClassID in use */ + for ( i = 0; i < stateSize; i++ ) + if ( ( 3 < i ) && ( nGlyphInClass[i] > 0 ) ) + *maxClassID_p = (FT_Byte)i; /* XXX: Check Range? */ + } + + Out: + GXV_TRACE(( "Declared stateSize=0x%02x, Used maxClassID=0x%02x\n", + stateSize, *maxClassID_p )); + GXV_EXIT; + } + + + /* --------------------------- State Array ----------------------------- */ + + static void + gxv_StateArray_validate( FT_Bytes table, + FT_UShort* length_p, + FT_Byte maxClassID, + FT_UShort stateSize, + FT_Byte* maxState_p, + FT_Byte* maxEntry_p, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_Bytes limit = table + *length_p; + FT_Byte clazz; + FT_Byte entry; + + FT_UNUSED( stateSize ); /* for the non-debugging case */ + + + GXV_NAME_ENTER( "StateArray" ); + + GXV_TRACE(( "parse %d bytes by stateSize=%d maxClassID=%d\n", + (int)(*length_p), stateSize, (int)(maxClassID) )); + + /* + * 2 states are predefined and must be described in StateArray: + * state 0 (start of text), 1 (start of line) + */ + GXV_LIMIT_CHECK( ( 1 + maxClassID ) * 2 ); + + *maxState_p = 0; + *maxEntry_p = 0; + + /* read if enough to read another state */ + while ( p + ( 1 + maxClassID ) <= limit ) + { + (*maxState_p)++; + for ( clazz = 0; clazz <= maxClassID; clazz++ ) + { + entry = FT_NEXT_BYTE( p ); + *maxEntry_p = (FT_Byte)FT_MAX( *maxEntry_p, entry ); + } + } + GXV_TRACE(( "parsed: maxState=%d, maxEntry=%d\n", + *maxState_p, *maxEntry_p )); + + *length_p = (FT_UShort)( p - table ); + + GXV_EXIT; + } + + + /* --------------------------- Entry Table ----------------------------- */ + + static void + gxv_EntryTable_validate( FT_Bytes table, + FT_UShort* length_p, + FT_Byte maxEntry, + FT_UShort stateArray, + FT_UShort stateArray_length, + FT_Byte maxClassID, + FT_Bytes statetable_table, + FT_Bytes statetable_limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_Bytes limit = table + *length_p; + FT_Byte entry; + FT_Byte state; + FT_Int entrySize = 2 + 2 + GXV_GLYPHOFFSET_SIZE( statetable ); + + GXV_XStateTable_GlyphOffsetDesc glyphOffset; + + + GXV_NAME_ENTER( "EntryTable" ); + + GXV_TRACE(( "maxEntry=%d entrySize=%d\n", maxEntry, entrySize )); + + if ( ( maxEntry + 1 ) * entrySize > *length_p ) + { + GXV_SET_ERR_IF_PARANOID( FT_INVALID_TOO_SHORT ); + + /* ftxvalidator and FontValidator both warn and continue */ + maxEntry = (FT_Byte)( *length_p / entrySize - 1 ); + GXV_TRACE(( "too large maxEntry, shrinking to %d fit EntryTable length\n", + maxEntry )); + } + + for ( entry = 0; entry <= maxEntry; entry++ ) + { + FT_UShort newState; + FT_UShort flags; + + + GXV_LIMIT_CHECK( 2 + 2 ); + newState = FT_NEXT_USHORT( p ); + flags = FT_NEXT_USHORT( p ); + + + if ( newState < stateArray || + stateArray + stateArray_length < newState ) + { + GXV_TRACE(( " newState offset 0x%04x is out of stateArray\n", + newState )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + continue; + } + + if ( 0 != ( ( newState - stateArray ) % ( 1 + maxClassID ) ) ) + { + GXV_TRACE(( " newState offset 0x%04x is not aligned to %d-classes\n", + newState, 1 + maxClassID )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + continue; + } + + state = (FT_Byte)( ( newState - stateArray ) / ( 1 + maxClassID ) ); + + switch ( GXV_GLYPHOFFSET_FMT( statetable ) ) + { + case GXV_GLYPHOFFSET_NONE: + glyphOffset.uc = 0; /* make compiler happy */ + break; + + case GXV_GLYPHOFFSET_UCHAR: + glyphOffset.uc = FT_NEXT_BYTE( p ); + break; + + case GXV_GLYPHOFFSET_CHAR: + glyphOffset.c = FT_NEXT_CHAR( p ); + break; + + case GXV_GLYPHOFFSET_USHORT: + glyphOffset.u = FT_NEXT_USHORT( p ); + break; + + case GXV_GLYPHOFFSET_SHORT: + glyphOffset.s = FT_NEXT_SHORT( p ); + break; + + case GXV_GLYPHOFFSET_ULONG: + glyphOffset.ul = FT_NEXT_ULONG( p ); + break; + + case GXV_GLYPHOFFSET_LONG: + glyphOffset.l = FT_NEXT_LONG( p ); + break; + + default: + GXV_SET_ERR_IF_PARANOID( FT_INVALID_FORMAT ); + goto Exit; + } + + if ( NULL != valid->statetable.entry_validate_func ) + valid->statetable.entry_validate_func( state, + flags, + &glyphOffset, + statetable_table, + statetable_limit, + valid ); + } + + Exit: + *length_p = (FT_UShort)( p - table ); + + GXV_EXIT; + } + + + /* =========================== State Table ============================= */ + + FT_LOCAL_DEF( void ) + gxv_StateTable_subtable_setup( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort* classTable_length_p, + FT_UShort* stateArray_length_p, + FT_UShort* entryTable_length_p, + GXV_Validator valid ) + { + FT_UShort o[3]; + FT_UShort* l[3]; + FT_UShort buff[4]; + + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + + gxv_set_length_by_ushort_offset( o, l, buff, 3, table_size, valid ); + } + + + FT_LOCAL_DEF( void ) + gxv_StateTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_UShort stateSize; + FT_UShort classTable; /* offset to Class(Sub)Table */ + FT_UShort stateArray; /* offset to StateArray */ + FT_UShort entryTable; /* offset to EntryTable */ + + FT_UShort classTable_length; + FT_UShort stateArray_length; + FT_UShort entryTable_length; + FT_Byte maxClassID; + FT_Byte maxState; + FT_Byte maxEntry; + + GXV_StateTable_Subtable_Setup_Func setup_func; + + FT_Bytes p = table; + + + GXV_NAME_ENTER( "StateTable" ); + + GXV_TRACE(( "StateTable header\n" )); + + GXV_LIMIT_CHECK( 2 + 2 + 2 + 2 ); + stateSize = FT_NEXT_USHORT( p ); + classTable = FT_NEXT_USHORT( p ); + stateArray = FT_NEXT_USHORT( p ); + entryTable = FT_NEXT_USHORT( p ); + + GXV_TRACE(( "stateSize=0x%04x\n", stateSize )); + GXV_TRACE(( "offset to classTable=0x%04x\n", classTable )); + GXV_TRACE(( "offset to stateArray=0x%04x\n", stateArray )); + GXV_TRACE(( "offset to entryTable=0x%04x\n", entryTable )); + + if ( stateSize > 0xFF ) + FT_INVALID_DATA; + + if ( valid->statetable.optdata_load_func != NULL ) + valid->statetable.optdata_load_func( p, limit, valid ); + + if ( valid->statetable.subtable_setup_func != NULL) + setup_func = valid->statetable.subtable_setup_func; + else + setup_func = gxv_StateTable_subtable_setup; + + setup_func( (FT_UShort)( limit - table ), + classTable, + stateArray, + entryTable, + &classTable_length, + &stateArray_length, + &entryTable_length, + valid ); + + GXV_TRACE(( "StateTable Subtables\n" )); + + if ( classTable != 0 ) + gxv_ClassTable_validate( table + classTable, + &classTable_length, + stateSize, + &maxClassID, + valid ); + else + maxClassID = (FT_Byte)( stateSize - 1 ); + + if ( stateArray != 0 ) + gxv_StateArray_validate( table + stateArray, + &stateArray_length, + maxClassID, + stateSize, + &maxState, + &maxEntry, + valid ); + else + { + maxState = 1; /* 0:start of text, 1:start of line are predefined */ + maxEntry = 0; + } + + if ( maxEntry > 0 && entryTable == 0 ) + FT_INVALID_OFFSET; + + if ( entryTable != 0 ) + gxv_EntryTable_validate( table + entryTable, + &entryTable_length, + maxEntry, + stateArray, + stateArray_length, + maxClassID, + table, + limit, + valid ); + + GXV_EXIT; + } + + + /* ================= eXtended State Table (for morx) =================== */ + + FT_LOCAL_DEF( void ) + gxv_XStateTable_subtable_setup( FT_ULong table_size, + FT_ULong classTable, + FT_ULong stateArray, + FT_ULong entryTable, + FT_ULong* classTable_length_p, + FT_ULong* stateArray_length_p, + FT_ULong* entryTable_length_p, + GXV_Validator valid ) + { + FT_ULong o[3]; + FT_ULong* l[3]; + FT_ULong buff[4]; + + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + + gxv_set_length_by_ulong_offset( o, l, buff, 3, table_size, valid ); + } + + + static void + gxv_XClassTable_lookupval_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_UNUSED( glyph ); + + if ( value_p->u >= valid->xstatetable.nClasses ) + FT_INVALID_DATA; + if ( value_p->u > valid->xstatetable.maxClassID ) + valid->xstatetable.maxClassID = value_p->u; + } + + + /* + +===============+ --------+ + | lookup header | | + +===============+ | + | BinSrchHeader | | + +===============+ | + | lastGlyph[0] | | + +---------------+ | + | firstGlyph[0] | | head of lookup table + +---------------+ | + + | offset[0] | -> | offset [byte] + +===============+ | + + | lastGlyph[1] | | (glyphID - firstGlyph) * 2 [byte] + +---------------+ | + | firstGlyph[1] | | + +---------------+ | + | offset[1] | | + +===============+ | + | + .... | + | + 16bit value array | + +===============+ | + | value | <-------+ + .... + */ + static GXV_LookupValueDesc + gxv_XClassTable_lookupfmt4_transit( FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + FT_Bytes p; + FT_Bytes limit; + FT_UShort offset; + GXV_LookupValueDesc value; + + /* XXX: check range? */ + offset = (FT_UShort)( base_value_p->u + + relative_gindex * sizeof ( FT_UShort ) ); + + p = valid->lookuptbl_head + offset; + limit = lookuptbl_limit; + + GXV_LIMIT_CHECK ( 2 ); + value.u = FT_NEXT_USHORT( p ); + + return value; + } + + + static void + gxv_XStateArray_validate( FT_Bytes table, + FT_ULong* length_p, + FT_UShort maxClassID, + FT_ULong stateSize, + FT_UShort* maxState_p, + FT_UShort* maxEntry_p, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_Bytes limit = table + *length_p; + FT_UShort clazz; + FT_UShort entry; + + FT_UNUSED( stateSize ); /* for the non-debugging case */ + + + GXV_NAME_ENTER( "XStateArray" ); + + GXV_TRACE(( "parse % 3d bytes by stateSize=% 3d maxClassID=% 3d\n", + (int)(*length_p), stateSize, (int)(maxClassID) )); + + /* + * 2 states are predefined and must be described: + * state 0 (start of text), 1 (start of line) + */ + GXV_LIMIT_CHECK( ( 1 + maxClassID ) * 2 * 2 ); + + *maxState_p = 0; + *maxEntry_p = 0; + + /* read if enough to read another state */ + while ( p + ( ( 1 + maxClassID ) * 2 ) <= limit ) + { + (*maxState_p)++; + for ( clazz = 0; clazz <= maxClassID; clazz++ ) + { + entry = FT_NEXT_USHORT( p ); + *maxEntry_p = (FT_UShort)FT_MAX( *maxEntry_p, entry ); + } + } + GXV_TRACE(( "parsed: maxState=%d, maxEntry=%d\n", + *maxState_p, *maxEntry_p )); + + *length_p = p - table; + + GXV_EXIT; + } + + + static void + gxv_XEntryTable_validate( FT_Bytes table, + FT_ULong* length_p, + FT_UShort maxEntry, + FT_ULong stateArray_length, + FT_UShort maxClassID, + FT_Bytes xstatetable_table, + FT_Bytes xstatetable_limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_Bytes limit = table + *length_p; + FT_UShort entry; + FT_UShort state; + FT_Int entrySize = 2 + 2 + GXV_GLYPHOFFSET_SIZE( xstatetable ); + + + GXV_NAME_ENTER( "XEntryTable" ); + GXV_TRACE(( "maxEntry=%d entrySize=%d\n", maxEntry, entrySize )); + + if ( ( p + ( maxEntry + 1 ) * entrySize ) > limit ) + FT_INVALID_TOO_SHORT; + + for (entry = 0; entry <= maxEntry ; entry++ ) + { + FT_UShort newState_idx; + FT_UShort flags; + GXV_XStateTable_GlyphOffsetDesc glyphOffset; + + + GXV_LIMIT_CHECK( 2 + 2 ); + newState_idx = FT_NEXT_USHORT( p ); + flags = FT_NEXT_USHORT( p ); + + if ( stateArray_length < (FT_ULong)( newState_idx * 2 ) ) + { + GXV_TRACE(( " newState index 0x%04x points out of stateArray\n", + newState_idx )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + + state = (FT_UShort)( newState_idx / ( 1 + maxClassID ) ); + if ( 0 != ( newState_idx % ( 1 + maxClassID ) ) ) + { + FT_TRACE4(( "-> new state = %d (supposed)\n" + "but newState index 0x%04x is not aligned to %d-classes\n", + state, newState_idx, 1 + maxClassID )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + + switch ( GXV_GLYPHOFFSET_FMT( xstatetable ) ) + { + case GXV_GLYPHOFFSET_NONE: + glyphOffset.uc = 0; /* make compiler happy */ + break; + + case GXV_GLYPHOFFSET_UCHAR: + glyphOffset.uc = FT_NEXT_BYTE( p ); + break; + + case GXV_GLYPHOFFSET_CHAR: + glyphOffset.c = FT_NEXT_CHAR( p ); + break; + + case GXV_GLYPHOFFSET_USHORT: + glyphOffset.u = FT_NEXT_USHORT( p ); + break; + + case GXV_GLYPHOFFSET_SHORT: + glyphOffset.s = FT_NEXT_SHORT( p ); + break; + + case GXV_GLYPHOFFSET_ULONG: + glyphOffset.ul = FT_NEXT_ULONG( p ); + break; + + case GXV_GLYPHOFFSET_LONG: + glyphOffset.l = FT_NEXT_LONG( p ); + break; + + default: + GXV_SET_ERR_IF_PARANOID( FT_INVALID_FORMAT ); + goto Exit; + } + + if ( NULL != valid->xstatetable.entry_validate_func ) + valid->xstatetable.entry_validate_func( state, + flags, + &glyphOffset, + xstatetable_table, + xstatetable_limit, + valid ); + } + + Exit: + *length_p = p - table; + + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_XStateTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + /* StateHeader members */ + FT_ULong classTable; /* offset to Class(Sub)Table */ + FT_ULong stateArray; /* offset to StateArray */ + FT_ULong entryTable; /* offset to EntryTable */ + + FT_ULong classTable_length; + FT_ULong stateArray_length; + FT_ULong entryTable_length; + FT_UShort maxState; + FT_UShort maxEntry; + + GXV_XStateTable_Subtable_Setup_Func setup_func; + + FT_Bytes p = table; + + + GXV_NAME_ENTER( "XStateTable" ); + + GXV_TRACE(( "XStateTable header\n" )); + + GXV_LIMIT_CHECK( 4 + 4 + 4 + 4 ); + valid->xstatetable.nClasses = FT_NEXT_ULONG( p ); + classTable = FT_NEXT_ULONG( p ); + stateArray = FT_NEXT_ULONG( p ); + entryTable = FT_NEXT_ULONG( p ); + + GXV_TRACE(( "nClasses =0x%08x\n", valid->xstatetable.nClasses )); + GXV_TRACE(( "offset to classTable=0x%08x\n", classTable )); + GXV_TRACE(( "offset to stateArray=0x%08x\n", stateArray )); + GXV_TRACE(( "offset to entryTable=0x%08x\n", entryTable )); + + if ( valid->xstatetable.nClasses > 0xFFFFU ) + FT_INVALID_DATA; + + GXV_TRACE(( "StateTable Subtables\n" )); + + if ( valid->xstatetable.optdata_load_func != NULL ) + valid->xstatetable.optdata_load_func( p, limit, valid ); + + if ( valid->xstatetable.subtable_setup_func != NULL ) + setup_func = valid->xstatetable.subtable_setup_func; + else + setup_func = gxv_XStateTable_subtable_setup; + + setup_func( limit - table, + classTable, + stateArray, + entryTable, + &classTable_length, + &stateArray_length, + &entryTable_length, + valid ); + + if ( classTable != 0 ) + { + valid->xstatetable.maxClassID = 0; + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_XClassTable_lookupval_validate; + valid->lookupfmt4_trans = gxv_XClassTable_lookupfmt4_transit; + gxv_LookupTable_validate( table + classTable, + table + classTable + classTable_length, + valid ); + if ( valid->subtable_length < classTable_length ) + classTable_length = valid->subtable_length; + } + else + { + /* XXX: check range? */ + valid->xstatetable.maxClassID = + (FT_UShort)( valid->xstatetable.nClasses - 1 ); + } + + if ( stateArray != 0 ) + gxv_XStateArray_validate( table + stateArray, + &stateArray_length, + valid->xstatetable.maxClassID, + valid->xstatetable.nClasses, + &maxState, + &maxEntry, + valid ); + else + { + maxState = 1; /* 0:start of text, 1:start of line are predefined */ + maxEntry = 0; + } + + if ( maxEntry > 0 && entryTable == 0 ) + FT_INVALID_OFFSET; + + if ( entryTable != 0 ) + gxv_XEntryTable_validate( table + entryTable, + &entryTable_length, + maxEntry, + stateArray_length, + valid->xstatetable.maxClassID, + table, + limit, + valid ); + + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Table overlapping *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static int + gxv_compare_ranges( FT_Bytes table1_start, + FT_ULong table1_length, + FT_Bytes table2_start, + FT_ULong table2_length ) + { + if ( table1_start == table2_start ) + { + if ( ( table1_length == 0 || table2_length == 0 ) ) + goto Out; + } + else if ( table1_start < table2_start ) + { + if ( ( table1_start + table1_length ) <= table2_start ) + goto Out; + } + else if ( table1_start > table2_start ) + { + if ( ( table1_start >= table2_start + table2_length ) ) + goto Out; + } + return 1; + + Out: + return 0; + } + + + FT_LOCAL_DEF( void ) + gxv_odtect_add_range( FT_Bytes start, + FT_ULong length, + const FT_String* name, + GXV_odtect_Range odtect ) + { + odtect->range[odtect->nRanges].start = start; + odtect->range[odtect->nRanges].length = length; + odtect->range[odtect->nRanges].name = (FT_String*)name; + odtect->nRanges++; + } + + + FT_LOCAL_DEF( void ) + gxv_odtect_validate( GXV_odtect_Range odtect, + GXV_Validator valid ) + { + FT_UInt i, j; + + + GXV_NAME_ENTER( "check overlap among multi ranges" ); + + for ( i = 0; i < odtect->nRanges; i++ ) + for ( j = 0; j < i; j++ ) + if ( 0 != gxv_compare_ranges( odtect->range[i].start, + odtect->range[i].length, + odtect->range[j].start, + odtect->range[j].length ) ) + { + if ( odtect->range[i].name || odtect->range[j].name ) + GXV_TRACE(( "found overlap between range %d and range %d\n", + i, j )); + else + GXV_TRACE(( "found overlap between `%s' and `%s\'\n", + odtect->range[i].name, + odtect->range[j].name )); + FT_INVALID_OFFSET; + } + + GXV_EXIT; + } + + +/* END */ diff --git a/src/gxvalid/gxvcommn.h b/src/gxvalid/gxvcommn.h new file mode 100644 index 0000000..1ff87e4 --- /dev/null +++ b/src/gxvalid/gxvcommn.h @@ -0,0 +1,582 @@ +/***************************************************************************/ +/* */ +/* gxvcommn.h */ +/* */ +/* TrueTypeGX/AAT common tables validation (specification). */ +/* */ +/* Copyright 2004, 2005, 2012 */ +/* by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + + /* + * keywords in variable naming + * --------------------------- + * table: Of type FT_Bytes, pointing to the start of this table/subtable. + * limit: Of type FT_Bytes, pointing to the end of this table/subtable, + * including padding for alignment. + * offset: Of type FT_UInt, the number of octets from the start to target. + * length: Of type FT_UInt, the number of octets from the start to the + * end in this table/subtable, including padding for alignment. + * + * _MIN, _MAX: Should be added to the tail of macros, as INT_MIN, etc. + */ + + +#ifndef __GXVCOMMN_H__ +#define __GXVCOMMN_H__ + + +#include <ft2build.h> +#include "gxvalid.h" +#include FT_INTERNAL_DEBUG_H +#include FT_SFNT_NAMES_H + + +FT_BEGIN_HEADER + + + /* some variables are not evaluated or only used in trace */ + +#ifdef FT_DEBUG_LEVEL_TRACE +#define GXV_LOAD_TRACE_VARS +#else +#undef GXV_LOAD_TRACE_VARS +#endif + +#undef GXV_LOAD_UNUSED_VARS /* debug purpose */ + +#define IS_PARANOID_VALIDATION ( valid->root->level >= FT_VALIDATE_PARANOID ) +#define GXV_SET_ERR_IF_PARANOID( err ) { if ( IS_PARANOID_VALIDATION ) ( err ); } + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** VALIDATION *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct GXV_ValidatorRec_* GXV_Validator; + + +#define DUMMY_LIMIT 0 + + typedef void + (*GXV_Validate_Func)( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + + /* ====================== LookupTable Validator ======================== */ + + typedef union GXV_LookupValueDesc_ + { + FT_UShort u; + FT_Short s; + + } GXV_LookupValueDesc; + + typedef const GXV_LookupValueDesc* GXV_LookupValueCPtr; + + typedef enum GXV_LookupValue_SignSpec_ + { + GXV_LOOKUPVALUE_UNSIGNED = 0, + GXV_LOOKUPVALUE_SIGNED + + } GXV_LookupValue_SignSpec; + + + typedef void + (*GXV_Lookup_Value_Validate_Func)( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ); + + typedef GXV_LookupValueDesc + (*GXV_Lookup_Fmt4_Transit_Func)( FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ); + + + /* ====================== StateTable Validator ========================= */ + + typedef enum GXV_GlyphOffset_Format_ + { + GXV_GLYPHOFFSET_NONE = -1, + GXV_GLYPHOFFSET_UCHAR = 2, + GXV_GLYPHOFFSET_CHAR, + GXV_GLYPHOFFSET_USHORT = 4, + GXV_GLYPHOFFSET_SHORT, + GXV_GLYPHOFFSET_ULONG = 8, + GXV_GLYPHOFFSET_LONG + + } GXV_GlyphOffset_Format; + + +#define GXV_GLYPHOFFSET_FMT( table ) \ + ( valid->table.entry_glyphoffset_fmt ) + +#define GXV_GLYPHOFFSET_SIZE( table ) \ + ( valid->table.entry_glyphoffset_fmt / 2 ) + + + /* ----------------------- 16bit StateTable ---------------------------- */ + + typedef union GXV_StateTable_GlyphOffsetDesc_ + { + FT_Byte uc; + FT_UShort u; /* same as GXV_LookupValueDesc */ + FT_ULong ul; + FT_Char c; + FT_Short s; /* same as GXV_LookupValueDesc */ + FT_Long l; + + } GXV_StateTable_GlyphOffsetDesc; + + typedef const GXV_StateTable_GlyphOffsetDesc* GXV_StateTable_GlyphOffsetCPtr; + + typedef void + (*GXV_StateTable_Subtable_Setup_Func)( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort* classTable_length_p, + FT_UShort* stateArray_length_p, + FT_UShort* entryTable_length_p, + GXV_Validator valid ); + + typedef void + (*GXV_StateTable_Entry_Validate_Func)( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes statetable_table, + FT_Bytes statetable_limit, + GXV_Validator valid ); + + typedef void + (*GXV_StateTable_OptData_Load_Func)( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + typedef struct GXV_StateTable_ValidatorRec_ + { + GXV_GlyphOffset_Format entry_glyphoffset_fmt; + void* optdata; + + GXV_StateTable_Subtable_Setup_Func subtable_setup_func; + GXV_StateTable_Entry_Validate_Func entry_validate_func; + GXV_StateTable_OptData_Load_Func optdata_load_func; + + } GXV_StateTable_ValidatorRec, *GXV_StateTable_ValidatorRecData; + + + /* ---------------------- 32bit XStateTable ---------------------------- */ + + typedef GXV_StateTable_GlyphOffsetDesc GXV_XStateTable_GlyphOffsetDesc; + + typedef const GXV_XStateTable_GlyphOffsetDesc* GXV_XStateTable_GlyphOffsetCPtr; + + typedef void + (*GXV_XStateTable_Subtable_Setup_Func)( FT_ULong table_size, + FT_ULong classTable, + FT_ULong stateArray, + FT_ULong entryTable, + FT_ULong* classTable_length_p, + FT_ULong* stateArray_length_p, + FT_ULong* entryTable_length_p, + GXV_Validator valid ); + + typedef void + (*GXV_XStateTable_Entry_Validate_Func)( + FT_UShort state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes xstatetable_table, + FT_Bytes xstatetable_limit, + GXV_Validator valid ); + + + typedef GXV_StateTable_OptData_Load_Func GXV_XStateTable_OptData_Load_Func; + + + typedef struct GXV_XStateTable_ValidatorRec_ + { + int entry_glyphoffset_fmt; + void* optdata; + + GXV_XStateTable_Subtable_Setup_Func subtable_setup_func; + GXV_XStateTable_Entry_Validate_Func entry_validate_func; + GXV_XStateTable_OptData_Load_Func optdata_load_func; + + FT_ULong nClasses; + FT_UShort maxClassID; + + } GXV_XStateTable_ValidatorRec, *GXV_XStateTable_ValidatorRecData; + + + /* ===================================================================== */ + + typedef struct GXV_ValidatorRec_ + { + FT_Validator root; + + FT_Face face; + void* table_data; + + FT_ULong subtable_length; + + GXV_LookupValue_SignSpec lookupval_sign; + GXV_Lookup_Value_Validate_Func lookupval_func; + GXV_Lookup_Fmt4_Transit_Func lookupfmt4_trans; + FT_Bytes lookuptbl_head; + + FT_UShort min_gid; + FT_UShort max_gid; + + GXV_StateTable_ValidatorRec statetable; + GXV_XStateTable_ValidatorRec xstatetable; + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_UInt debug_indent; + const FT_String* debug_function_name[3]; +#endif + + } GXV_ValidatorRec; + + +#define GXV_TABLE_DATA( tag, field ) \ + ( ( (GXV_ ## tag ## _Data)valid->table_data )->field ) + +#undef FT_INVALID_ +#define FT_INVALID_( _prefix, _error ) \ + ft_validator_error( valid->root, _prefix ## _error ) + +#define GXV_LIMIT_CHECK( _count ) \ + FT_BEGIN_STMNT \ + if ( p + _count > ( limit? limit : valid->root->limit ) ) \ + FT_INVALID_TOO_SHORT; \ + FT_END_STMNT + + +#ifdef FT_DEBUG_LEVEL_TRACE + +#define GXV_INIT valid->debug_indent = 0 + +#define GXV_NAME_ENTER( name ) \ + FT_BEGIN_STMNT \ + valid->debug_indent += 2; \ + FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \ + FT_TRACE4(( "%s table\n", name )); \ + FT_END_STMNT + +#define GXV_EXIT valid->debug_indent -= 2 + +#define GXV_TRACE( s ) \ + FT_BEGIN_STMNT \ + FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \ + FT_TRACE4( s ); \ + FT_END_STMNT + +#else /* !FT_DEBUG_LEVEL_TRACE */ + +#define GXV_INIT do { } while ( 0 ) +#define GXV_NAME_ENTER( name ) do { } while ( 0 ) +#define GXV_EXIT do { } while ( 0 ) + +#define GXV_TRACE( s ) do { } while ( 0 ) + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** 32bit alignment checking *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define GXV_32BIT_ALIGNMENT_VALIDATE( a ) \ + FT_BEGIN_STMNT \ + { \ + if ( (a) & 3 ) \ + FT_INVALID_OFFSET ; \ + } \ + FT_END_STMNT + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Dumping Binary Data *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define GXV_TRACE_HEXDUMP( p, len ) \ + FT_BEGIN_STMNT \ + { \ + FT_Bytes b; \ + \ + \ + for ( b = p; b < (FT_Bytes)p + len; b++ ) \ + FT_TRACE1(("\\x%02x", *b)) ; \ + } \ + FT_END_STMNT + +#define GXV_TRACE_HEXDUMP_C( p, len ) \ + FT_BEGIN_STMNT \ + { \ + FT_Bytes b; \ + \ + \ + for ( b = p; b < (FT_Bytes)p + len; b++ ) \ + if ( 0x40 < *b && *b < 0x7e ) \ + FT_TRACE1(("%c", *b)) ; \ + else \ + FT_TRACE1(("\\x%02x", *b)) ; \ + } \ + FT_END_STMNT + +#define GXV_TRACE_HEXDUMP_SFNTNAME( n ) \ + GXV_TRACE_HEXDUMP( n.string, n.string_len ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LOOKUP TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + gxv_BinSrchHeader_validate( FT_Bytes p, + FT_Bytes limit, + FT_UShort* unitSize_p, + FT_UShort* nUnits_p, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_LookupTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Glyph ID *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( FT_Int ) + gxv_glyphid_validate( FT_UShort gid, + GXV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CONTROL POINT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + gxv_ctlPoint_validate( FT_UShort gid, + FT_Short ctl_point, + GXV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SFNT NAME *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + gxv_sfntName_validate( FT_UShort name_index, + FT_UShort min_index, + FT_UShort max_index, + GXV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** STATE TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + gxv_StateTable_subtable_setup( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort* classTable_length_p, + FT_UShort* stateArray_length_p, + FT_UShort* entryTable_length_p, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_XStateTable_subtable_setup( FT_ULong table_size, + FT_ULong classTable, + FT_ULong stateArray, + FT_ULong entryTable, + FT_ULong* classTable_length_p, + FT_ULong* stateArray_length_p, + FT_ULong* entryTable_length_p, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_StateTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_XStateTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY MACROS AND FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + gxv_array_getlimits_byte( FT_Bytes table, + FT_Bytes limit, + FT_Byte* min, + FT_Byte* max, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_array_getlimits_ushort( FT_Bytes table, + FT_Bytes limit, + FT_UShort* min, + FT_UShort* max, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_set_length_by_ushort_offset( FT_UShort* offset, + FT_UShort** length, + FT_UShort* buff, + FT_UInt nmemb, + FT_UShort limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_set_length_by_ulong_offset( FT_ULong* offset, + FT_ULong** length, + FT_ULong* buff, + FT_UInt nmemb, + FT_ULong limit, + GXV_Validator valid); + + +#define GXV_SUBTABLE_OFFSET_CHECK( _offset ) \ + FT_BEGIN_STMNT \ + if ( (_offset) > valid->subtable_length ) \ + FT_INVALID_OFFSET; \ + FT_END_STMNT + +#define GXV_SUBTABLE_LIMIT_CHECK( _count ) \ + FT_BEGIN_STMNT \ + if ( ( p + (_count) - valid->subtable_start ) > \ + valid->subtable_length ) \ + FT_INVALID_TOO_SHORT; \ + FT_END_STMNT + +#define GXV_USHORT_TO_SHORT( _us ) \ + ( ( 0x8000U < ( _us ) ) ? ( ( _us ) - 0x8000U ) : ( _us ) ) + +#define GXV_STATETABLE_HEADER_SIZE ( 2 + 2 + 2 + 2 ) +#define GXV_STATEHEADER_SIZE GXV_STATETABLE_HEADER_SIZE + +#define GXV_XSTATETABLE_HEADER_SIZE ( 4 + 4 + 4 + 4 ) +#define GXV_XSTATEHEADER_SIZE GXV_XSTATETABLE_HEADER_SIZE + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Table overlapping *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct GXV_odtect_DataRec_ + { + FT_Bytes start; + FT_ULong length; + FT_String* name; + + } GXV_odtect_DataRec, *GXV_odtect_Data; + + typedef struct GXV_odtect_RangeRec_ + { + FT_UInt nRanges; + GXV_odtect_Data range; + + } GXV_odtect_RangeRec, *GXV_odtect_Range; + + + FT_LOCAL( void ) + gxv_odtect_add_range( FT_Bytes start, + FT_ULong length, + const FT_String* name, + GXV_odtect_Range odtect ); + + FT_LOCAL( void ) + gxv_odtect_validate( GXV_odtect_Range odtect, + GXV_Validator valid ); + + +#define GXV_ODTECT( n, odtect ) \ + GXV_odtect_DataRec odtect ## _range[n]; \ + GXV_odtect_RangeRec odtect ## _rec = { 0, NULL }; \ + GXV_odtect_Range odtect = NULL + +#define GXV_ODTECT_INIT( odtect ) \ + FT_BEGIN_STMNT \ + odtect ## _rec.nRanges = 0; \ + odtect ## _rec.range = odtect ## _range; \ + odtect = & odtect ## _rec; \ + FT_END_STMNT + + + /* */ + +FT_END_HEADER + +#endif /* __GXVCOMMN_H__ */ + + +/* END */ diff --git a/src/gxvalid/gxverror.h b/src/gxvalid/gxverror.h new file mode 100644 index 0000000..7d2ef78 --- /dev/null +++ b/src/gxvalid/gxverror.h @@ -0,0 +1,53 @@ +/***************************************************************************/ +/* */ +/* gxverror.h */ +/* */ +/* TrueTypeGX/AAT validation module error codes (specification only). */ +/* */ +/* Copyright 2004, 2005, 2012 */ +/* by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the OpenType validation module error */ + /* enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __GXVERROR_H__ +#define __GXVERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX GXV_Err_ +#define FT_ERR_BASE FT_Mod_Err_GXV + +#define FT_KEEP_ERR_PREFIX + +#include FT_ERRORS_H + +#endif /* __GXVERROR_H__ */ + + +/* END */ diff --git a/src/gxvalid/gxvfeat.c b/src/gxvalid/gxvfeat.c new file mode 100644 index 0000000..6f75650 --- /dev/null +++ b/src/gxvalid/gxvfeat.c @@ -0,0 +1,339 @@ +/***************************************************************************/ +/* */ +/* gxvfeat.c */ +/* */ +/* TrueTypeGX/AAT feat table validation (body). */ +/* */ +/* Copyright 2004, 2005, 2008, 2012 by */ +/* suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" +#include "gxvfeat.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvfeat + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct GXV_feat_DataRec_ + { + FT_UInt reserved_size; + FT_UShort feature; + FT_UShort setting; + + } GXV_feat_DataRec, *GXV_feat_Data; + + +#define GXV_FEAT_DATA( field ) GXV_TABLE_DATA( feat, field ) + + + typedef enum GXV_FeatureFlagsMask_ + { + GXV_FEAT_MASK_EXCLUSIVE_SETTINGS = 0x8000U, + GXV_FEAT_MASK_DYNAMIC_DEFAULT = 0x4000, + GXV_FEAT_MASK_UNUSED = 0x3F00, + GXV_FEAT_MASK_DEFAULT_SETTING = 0x00FF + + } GXV_FeatureFlagsMask; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_feat_registry_validate( FT_UShort feature, + FT_UShort nSettings, + FT_Bool exclusive, + GXV_Validator valid ) + { + GXV_NAME_ENTER( "feature in registry" ); + + GXV_TRACE(( " (feature = %u)\n", feature )); + + if ( feature >= gxv_feat_registry_length ) + { + GXV_TRACE(( "feature number %d is out of range %d\n", + feature, gxv_feat_registry_length )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + goto Exit; + } + + if ( gxv_feat_registry[feature].existence == 0 ) + { + GXV_TRACE(( "feature number %d is in defined range but doesn't exist\n", + feature )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + goto Exit; + } + + if ( gxv_feat_registry[feature].apple_reserved ) + { + /* Don't use here. Apple is reserved. */ + GXV_TRACE(( "feature number %d is reserved by Apple\n", feature )); + if ( valid->root->level >= FT_VALIDATE_TIGHT ) + FT_INVALID_DATA; + } + + if ( nSettings != gxv_feat_registry[feature].nSettings ) + { + GXV_TRACE(( "feature %d: nSettings %d != defined nSettings %d\n", + feature, nSettings, + gxv_feat_registry[feature].nSettings )); + if ( valid->root->level >= FT_VALIDATE_TIGHT ) + FT_INVALID_DATA; + } + + if ( exclusive != gxv_feat_registry[feature].exclusive ) + { + GXV_TRACE(( "exclusive flag %d differs from predefined value\n", + exclusive )); + if ( valid->root->level >= FT_VALIDATE_TIGHT ) + FT_INVALID_DATA; + } + + Exit: + GXV_EXIT; + } + + + static void + gxv_feat_name_index_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + FT_Short nameIndex; + + + GXV_NAME_ENTER( "nameIndex" ); + + GXV_LIMIT_CHECK( 2 ); + nameIndex = FT_NEXT_SHORT ( p ); + GXV_TRACE(( " (nameIndex = %d)\n", nameIndex )); + + gxv_sfntName_validate( (FT_UShort)nameIndex, + 255, + 32768U, + valid ); + + GXV_EXIT; + } + + + static void + gxv_feat_setting_validate( FT_Bytes table, + FT_Bytes limit, + FT_Bool exclusive, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort setting; + + + GXV_NAME_ENTER( "setting" ); + + GXV_LIMIT_CHECK( 2 ); + + setting = FT_NEXT_USHORT( p ); + + /* If we have exclusive setting, the setting should be odd. */ + if ( exclusive && ( setting & 1 ) == 0 ) + FT_INVALID_DATA; + + gxv_feat_name_index_validate( p, limit, valid ); + + GXV_FEAT_DATA( setting ) = setting; + + GXV_EXIT; + } + + + static void + gxv_feat_name_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt reserved_size = GXV_FEAT_DATA( reserved_size ); + + FT_UShort feature; + FT_UShort nSettings; + FT_ULong settingTable; + FT_UShort featureFlags; + + FT_Bool exclusive; + FT_Int last_setting; + FT_UInt i; + + + GXV_NAME_ENTER( "name" ); + + /* feature + nSettings + settingTable + featureFlags */ + GXV_LIMIT_CHECK( 2 + 2 + 4 + 2 ); + + feature = FT_NEXT_USHORT( p ); + GXV_FEAT_DATA( feature ) = feature; + + nSettings = FT_NEXT_USHORT( p ); + settingTable = FT_NEXT_ULONG ( p ); + featureFlags = FT_NEXT_USHORT( p ); + + if ( settingTable < reserved_size ) + FT_INVALID_OFFSET; + + if ( ( featureFlags & GXV_FEAT_MASK_UNUSED ) == 0 ) + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + + exclusive = FT_BOOL( featureFlags & GXV_FEAT_MASK_EXCLUSIVE_SETTINGS ); + if ( exclusive ) + { + FT_Byte dynamic_default; + + + if ( featureFlags & GXV_FEAT_MASK_DYNAMIC_DEFAULT ) + dynamic_default = (FT_Byte)( featureFlags & + GXV_FEAT_MASK_DEFAULT_SETTING ); + else + dynamic_default = 0; + + /* If exclusive, check whether default setting is in the range. */ + if ( !( dynamic_default < nSettings ) ) + FT_INVALID_FORMAT; + } + + gxv_feat_registry_validate( feature, nSettings, exclusive, valid ); + + gxv_feat_name_index_validate( p, limit, valid ); + + p = valid->root->base + settingTable; + for ( last_setting = -1, i = 0; i < nSettings; i++ ) + { + gxv_feat_setting_validate( p, limit, exclusive, valid ); + + if ( (FT_Int)GXV_FEAT_DATA( setting ) <= last_setting ) + GXV_SET_ERR_IF_PARANOID( FT_INVALID_FORMAT ); + + last_setting = (FT_Int)GXV_FEAT_DATA( setting ); + /* setting + nameIndex */ + p += ( 2 + 2 ); + } + + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** feat TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_feat_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + + GXV_feat_DataRec featrec; + GXV_feat_Data feat = &featrec; + + FT_Bytes p = table; + FT_Bytes limit = 0; + + FT_UInt featureNameCount; + + FT_UInt i; + FT_Int last_feature; + + + valid->root = ftvalid; + valid->table_data = feat; + valid->face = face; + + FT_TRACE3(( "validating `feat' table\n" )); + GXV_INIT; + + feat->reserved_size = 0; + + /* version + featureNameCount + none_0 + none_1 */ + GXV_LIMIT_CHECK( 4 + 2 + 2 + 4 ); + feat->reserved_size += 4 + 2 + 2 + 4; + + if ( FT_NEXT_ULONG( p ) != 0x00010000UL ) /* Version */ + FT_INVALID_FORMAT; + + featureNameCount = FT_NEXT_USHORT( p ); + GXV_TRACE(( " (featureNameCount = %d)\n", featureNameCount )); + + if ( !( IS_PARANOID_VALIDATION ) ) + p += 6; /* skip (none) and (none) */ + else + { + if ( FT_NEXT_USHORT( p ) != 0 ) + FT_INVALID_DATA; + + if ( FT_NEXT_ULONG( p ) != 0 ) + FT_INVALID_DATA; + } + + feat->reserved_size += featureNameCount * ( 2 + 2 + 4 + 2 + 2 ); + + for ( last_feature = -1, i = 0; i < featureNameCount; i++ ) + { + gxv_feat_name_validate( p, limit, valid ); + + if ( (FT_Int)GXV_FEAT_DATA( feature ) <= last_feature ) + GXV_SET_ERR_IF_PARANOID( FT_INVALID_FORMAT ); + + last_feature = GXV_FEAT_DATA( feature ); + p += 2 + 2 + 4 + 2 + 2; + } + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/gxvalid/gxvfeat.h b/src/gxvalid/gxvfeat.h new file mode 100644 index 0000000..049d23a --- /dev/null +++ b/src/gxvalid/gxvfeat.h @@ -0,0 +1,172 @@ +/***************************************************************************/ +/* */ +/* gxvfeat.h */ +/* */ +/* TrueTypeGX/AAT feat table validation (specification). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __GXVFEAT_H__ +#define __GXVFEAT_H__ + + +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Registry predefined by Apple *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* TODO: More compact format */ + typedef struct GXV_Feature_RegistryRec_ + { + FT_Bool existence; + FT_Bool apple_reserved; + FT_Bool exclusive; + FT_Byte nSettings; + + } GX_Feature_RegistryRec; + + +#define gxv_feat_registry_length \ + ( sizeof ( gxv_feat_registry ) / \ + sizeof ( GX_Feature_RegistryRec ) ) + + + static GX_Feature_RegistryRec gxv_feat_registry[] = + { + /* Generated from gxvfgen.c */ + {1, 0, 0, 1}, /* All Typographic Features */ + {1, 0, 0, 8}, /* Ligatures */ + {1, 0, 1, 3}, /* Cursive Connection */ + {1, 0, 1, 6}, /* Letter Case */ + {1, 0, 0, 1}, /* Vertical Substitution */ + {1, 0, 0, 1}, /* Linguistic Rearrangement */ + {1, 0, 1, 2}, /* Number Spacing */ + {1, 1, 0, 0}, /* Apple Reserved 1 */ + {1, 0, 0, 5}, /* Smart Swashes */ + {1, 0, 1, 3}, /* Diacritics */ + {1, 0, 1, 4}, /* Vertical Position */ + {1, 0, 1, 3}, /* Fractions */ + {1, 1, 0, 0}, /* Apple Reserved 2 */ + {1, 0, 0, 1}, /* Overlapping Characters */ + {1, 0, 0, 6}, /* Typographic Extras */ + {1, 0, 0, 5}, /* Mathematical Extras */ + {1, 0, 1, 7}, /* Ornament Sets */ + {1, 0, 1, 1}, /* Character Alternatives */ + {1, 0, 1, 5}, /* Design Complexity */ + {1, 0, 1, 6}, /* Style Options */ + {1, 0, 1, 11}, /* Character Shape */ + {1, 0, 1, 2}, /* Number Case */ + {1, 0, 1, 4}, /* Text Spacing */ + {1, 0, 1, 10}, /* Transliteration */ + {1, 0, 1, 9}, /* Annotation */ + {1, 0, 1, 2}, /* Kana Spacing */ + {1, 0, 1, 2}, /* Ideographic Spacing */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {0, 0, 0, 0}, /* __EMPTY__ */ + {1, 0, 1, 4}, /* Text Spacing */ + {1, 0, 1, 2}, /* Kana Spacing */ + {1, 0, 1, 2}, /* Ideographic Spacing */ + {1, 0, 1, 4}, /* CJK Roman Spacing */ + }; + + +#endif /* __GXVFEAT_H__ */ + + +/* END */ diff --git a/src/gxvalid/gxvfgen.c b/src/gxvalid/gxvfgen.c new file mode 100644 index 0000000..e48778a --- /dev/null +++ b/src/gxvalid/gxvfgen.c @@ -0,0 +1,482 @@ +/***************************************************************************/ +/* */ +/* gxfgen.c */ +/* */ +/* Generate feature registry data for gxv `feat' validator. */ +/* This program is derived from gxfeatreg.c in gxlayout. */ +/* */ +/* Copyright 2004, 2005, 2006 by Masatake YAMATO and Redhat K.K. */ +/* */ +/* This file may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxfeatreg.c */ +/* */ +/* Database of font features pre-defined by Apple Computer, Inc. */ +/* http://developer.apple.com/fonts/Registry/ */ +/* (body). */ +/* */ +/* Copyright 2003 by */ +/* Masatake YAMATO and Redhat K.K. */ +/* */ +/* This file may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* Development of gxfeatreg.c is supported by */ +/* Information-technology Promotion Agency, Japan. */ +/* */ +/***************************************************************************/ + + +/***************************************************************************/ +/* */ +/* This file is compiled as a stand-alone executable. */ +/* This file is never compiled into `libfreetype2'. */ +/* The output of this file is used in `gxvfeat.c'. */ +/* ----------------------------------------------------------------------- */ +/* Compile: gcc `pkg-config --cflags freetype2` gxvfgen.c -o gxvfgen */ +/* Run: ./gxvfgen > tmp.c */ +/* */ +/***************************************************************************/ + + /*******************************************************************/ + /* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING */ + /*******************************************************************/ + + /* + * If you add a new setting to a feature, check the number of settings + * in the feature. If the number is greater than the value defined as + * FEATREG_MAX_SETTING, update the value. + */ +#define FEATREG_MAX_SETTING 12 + + /*******************************************************************/ + /* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING */ + /*******************************************************************/ + + +#include <stdio.h> +#include <string.h> + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define APPLE_RESERVED "Apple Reserved" +#define APPLE_RESERVED_LENGTH 14 + + typedef struct GX_Feature_RegistryRec_ + { + const char* feat_name; + char exclusive; + char* setting_name[FEATREG_MAX_SETTING]; + + } GX_Feature_RegistryRec; + + +#define EMPTYFEAT {0, 0, {NULL}} + + + static GX_Feature_RegistryRec featreg_table[] = { + { /* 0 */ + "All Typographic Features", + 0, + { + "All Type Features", + NULL + } + }, { /* 1 */ + "Ligatures", + 0, + { + "Required Ligatures", + "Common Ligatures", + "Rare Ligatures", + "Logos", + "Rebus Pictures", + "Diphthong Ligatures", + "Squared Ligatures", + "Squared Ligatures, Abbreviated", + NULL + } + }, { /* 2 */ + "Cursive Connection", + 1, + { + "Unconnected", + "Partially Connected", + "Cursive", + NULL + } + }, { /* 3 */ + "Letter Case", + 1, + { + "Upper & Lower Case", + "All Caps", + "All Lower Case", + "Small Caps", + "Initial Caps", + "Initial Caps & Small Caps", + NULL + } + }, { /* 4 */ + "Vertical Substitution", + 0, + { + /* "Substitute Vertical Forms", */ + "Turns on the feature", + NULL + } + }, { /* 5 */ + "Linguistic Rearrangement", + 0, + { + /* "Linguistic Rearrangement", */ + "Turns on the feature", + NULL + } + }, { /* 6 */ + "Number Spacing", + 1, + { + "Monospaced Numbers", + "Proportional Numbers", + NULL + } + }, { /* 7 */ + APPLE_RESERVED " 1", + 0, + {NULL} + }, { /* 8 */ + "Smart Swashes", + 0, + { + "Word Initial Swashes", + "Word Final Swashes", + "Line Initial Swashes", + "Line Final Swashes", + "Non-Final Swashes", + NULL + } + }, { /* 9 */ + "Diacritics", + 1, + { + "Show Diacritics", + "Hide Diacritics", + "Decompose Diacritics", + NULL + } + }, { /* 10 */ + "Vertical Position", + 1, + { + /* "Normal Position", */ + "No Vertical Position", + "Superiors", + "Inferiors", + "Ordinals", + NULL + } + }, { /* 11 */ + "Fractions", + 1, + { + "No Fractions", + "Vertical Fractions", + "Diagonal Fractions", + NULL + } + }, { /* 12 */ + APPLE_RESERVED " 2", + 0, + {NULL} + }, { /* 13 */ + "Overlapping Characters", + 0, + { + /* "Prevent Overlap", */ + "Turns on the feature", + NULL + } + }, { /* 14 */ + "Typographic Extras", + 0, + { + "Hyphens to Em Dash", + "Hyphens to En Dash", + "Unslashed Zero", + "Form Interrobang", + "Smart Quotes", + "Periods to Ellipsis", + NULL + } + }, { /* 15 */ + "Mathematical Extras", + 0, + { + "Hyphens to Minus", + "Asterisk to Multiply", + "Slash to Divide", + "Inequality Ligatures", + "Exponents", + NULL + } + }, { /* 16 */ + "Ornament Sets", + 1, + { + "No Ornaments", + "Dingbats", + "Pi Characters", + "Fleurons", + "Decorative Borders", + "International Symbols", + "Math Symbols", + NULL + } + }, { /* 17 */ + "Character Alternatives", + 1, + { + "No Alternates", + /* TODO */ + NULL + } + }, { /* 18 */ + "Design Complexity", + 1, + { + "Design Level 1", + "Design Level 2", + "Design Level 3", + "Design Level 4", + "Design Level 5", + /* TODO */ + NULL + } + }, { /* 19 */ + "Style Options", + 1, + { + "No Style Options", + "Display Text", + "Engraved Text", + "Illuminated Caps", + "Tilling Caps", + "Tall Caps", + NULL + } + }, { /* 20 */ + "Character Shape", + 1, + { + "Traditional Characters", + "Simplified Characters", + "JIS 1978 Characters", + "JIS 1983 Characters", + "JIS 1990 Characters", + "Traditional Characters, Alternative Set 1", + "Traditional Characters, Alternative Set 2", + "Traditional Characters, Alternative Set 3", + "Traditional Characters, Alternative Set 4", + "Traditional Characters, Alternative Set 5", + "Expert Characters", + NULL /* count => 12 */ + } + }, { /* 21 */ + "Number Case", + 1, + { + "Lower Case Numbers", + "Upper Case Numbers", + NULL + } + }, { /* 22 */ + "Text Spacing", + 1, + { + "Proportional", + "Monospaced", + "Half-width", + "Normal", + NULL + } + }, /* Here after Newer */ { /* 23 */ + "Transliteration", + 1, + { + "No Transliteration", + "Hanja To Hangul", + "Hiragana to Katakana", + "Katakana to Hiragana", + "Kana to Romanization", + "Romanization to Hiragana", + "Romanization to Katakana", + "Hanja to Hangul, Alternative Set 1", + "Hanja to Hangul, Alternative Set 2", + "Hanja to Hangul, Alternative Set 3", + NULL + } + }, { /* 24 */ + "Annotation", + 1, + { + "No Annotation", + "Box Annotation", + "Rounded Box Annotation", + "Circle Annotation", + "Inverted Circle Annotation", + "Parenthesis Annotation", + "Period Annotation", + "Roman Numeral Annotation", + "Diamond Annotation", + NULL + } + }, { /* 25 */ + "Kana Spacing", + 1, + { + "Full Width", + "Proportional", + NULL + } + }, { /* 26 */ + "Ideographic Spacing", + 1, + { + "Full Width", + "Proportional", + NULL + } + }, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 27-30 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 31-35 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 36-40 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 40-45 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 46-50 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 51-55 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 56-60 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 61-65 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 66-70 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 71-75 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 76-80 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 81-85 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 86-90 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 91-95 */ + EMPTYFEAT, EMPTYFEAT, EMPTYFEAT, /* 96-98 */ + EMPTYFEAT, /* 99 */ { /* 100 => 22 */ + "Text Spacing", + 1, + { + "Proportional", + "Monospaced", + "Half-width", + "Normal", + NULL + } + }, { /* 101 => 25 */ + "Kana Spacing", + 1, + { + "Full Width", + "Proportional", + NULL + } + }, { /* 102 => 26 */ + "Ideographic Spacing", + 1, + { + "Full Width", + "Proportional", + NULL + } + }, { /* 103 */ + "CJK Roman Spacing", + 1, + { + "Half-width", + "Proportional", + "Default Roman", + "Full-width Roman", + NULL + } + }, { /* 104 => 1 */ + "All Typographic Features", + 0, + { + "All Type Features", + NULL + } + } + }; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Generator *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + int + main( void ) + { + int i; + + + printf( " {\n" ); + printf( " /* Generated from %s */\n", __FILE__ ); + + for ( i = 0; + i < sizeof ( featreg_table ) / sizeof ( GX_Feature_RegistryRec ); + i++ ) + { + const char* feat_name; + int nSettings; + + + feat_name = featreg_table[i].feat_name; + for ( nSettings = 0; + featreg_table[i].setting_name[nSettings]; + nSettings++) + ; /* Do nothing */ + + printf( " {%1d, %1d, %1d, %2d}, /* %s */\n", + feat_name ? 1 : 0, + ( feat_name && + ( ft_strncmp( feat_name, + APPLE_RESERVED, APPLE_RESERVED_LENGTH ) == 0 ) + ) ? 1 : 0, + featreg_table[i].exclusive ? 1 : 0, + nSettings, + feat_name ? feat_name : "__EMPTY__" ); + } + + printf( " };\n" ); + + return 0; + } + + +/* END */ diff --git a/src/gxvalid/gxvjust.c b/src/gxvalid/gxvjust.c new file mode 100644 index 0000000..7816e0b --- /dev/null +++ b/src/gxvalid/gxvjust.c @@ -0,0 +1,717 @@ +/***************************************************************************/ +/* */ +/* gxvjust.c */ +/* */ +/* TrueTypeGX/AAT just table validation (body). */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + +#include FT_SFNT_NAMES_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvjust + + /* + * referred `just' table format specification: + * http://developer.apple.com/fonts/TTRefMan/RM06/Chap6just.html + * last updated 2000. + * ---------------------------------------------- + * [JUST HEADER]: GXV_JUST_HEADER_SIZE + * version (fixed: 32bit) = 0x00010000 + * format (uint16: 16bit) = 0 is only defined (2000) + * horizOffset (uint16: 16bit) + * vertOffset (uint16: 16bit) + * ---------------------------------------------- + */ + + typedef struct GXV_just_DataRec_ + { + FT_UShort wdc_offset_max; + FT_UShort wdc_offset_min; + FT_UShort pc_offset_max; + FT_UShort pc_offset_min; + + } GXV_just_DataRec, *GXV_just_Data; + + +#define GXV_JUST_DATA( a ) GXV_TABLE_DATA( just, a ) + + + /* GX just table does not define their subset of GID */ + static void + gxv_just_check_max_gid( FT_UShort gid, + const FT_String* msg_tag, + GXV_Validator valid ) + { + if ( gid < valid->face->num_glyphs ) + return; + + GXV_TRACE(( "just table includes too large %s" + " GID=%d > %d (in maxp)\n", + msg_tag, gid, valid->face->num_glyphs )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + + + static void + gxv_just_wdp_entry_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_ULong justClass; +#ifdef GXV_LOAD_UNUSED_VARS + FT_Fixed beforeGrowLimit; + FT_Fixed beforeShrinkGrowLimit; + FT_Fixed afterGrowLimit; + FT_Fixed afterShrinkGrowLimit; + FT_UShort growFlags; + FT_UShort shrinkFlags; +#endif + + + GXV_LIMIT_CHECK( 4 + 4 + 4 + 4 + 4 + 2 + 2 ); + justClass = FT_NEXT_ULONG( p ); +#ifndef GXV_LOAD_UNUSED_VARS + p += 4 + 4 + 4 + 4 + 2 + 2; +#else + beforeGrowLimit = FT_NEXT_ULONG( p ); + beforeShrinkGrowLimit = FT_NEXT_ULONG( p ); + afterGrowLimit = FT_NEXT_ULONG( p ); + afterShrinkGrowLimit = FT_NEXT_ULONG( p ); + growFlags = FT_NEXT_USHORT( p ); + shrinkFlags = FT_NEXT_USHORT( p ); +#endif + + /* According to Apple spec, only 7bits in justClass is used */ + if ( ( justClass & 0xFFFFFF80 ) != 0 ) + { + GXV_TRACE(( "just table includes non-zero value" + " in unused justClass higher bits" + " of WidthDeltaPair" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + + valid->subtable_length = p - table; + } + + + static void + gxv_just_wdc_entry_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_ULong count, i; + + + GXV_LIMIT_CHECK( 4 ); + count = FT_NEXT_ULONG( p ); + for ( i = 0; i < count; i++ ) + { + GXV_TRACE(( "validating wdc pair %d/%d\n", i + 1, count )); + gxv_just_wdp_entry_validate( p, limit, valid ); + p += valid->subtable_length; + } + + valid->subtable_length = p - table; + } + + + static void + gxv_just_widthDeltaClusters_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table ; + FT_Bytes wdc_end = table + GXV_JUST_DATA( wdc_offset_max ); + FT_UInt i; + + + GXV_NAME_ENTER( "just justDeltaClusters" ); + + if ( limit <= wdc_end ) + FT_INVALID_OFFSET; + + for ( i = 0; p <= wdc_end; i++ ) + { + gxv_just_wdc_entry_validate( p, limit, valid ); + p += valid->subtable_length; + } + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + static void + gxv_just_actSubrecord_type0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + FT_Fixed lowerLimit; + FT_Fixed upperLimit; +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort order; +#endif + FT_UShort decomposedCount; + + FT_UInt i; + + + GXV_LIMIT_CHECK( 4 + 4 + 2 + 2 ); + lowerLimit = FT_NEXT_ULONG( p ); + upperLimit = FT_NEXT_ULONG( p ); +#ifdef GXV_LOAD_UNUSED_VARS + order = FT_NEXT_USHORT( p ); +#else + p += 2; +#endif + decomposedCount = FT_NEXT_USHORT( p ); + + if ( lowerLimit >= upperLimit ) + { + GXV_TRACE(( "just table includes invalid range spec:" + " lowerLimit(%d) > upperLimit(%d)\n" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + + for ( i = 0; i < decomposedCount; i++ ) + { + FT_UShort glyphs; + + + GXV_LIMIT_CHECK( 2 ); + glyphs = FT_NEXT_USHORT( p ); + gxv_just_check_max_gid( glyphs, "type0:glyphs", valid ); + } + + valid->subtable_length = p - table; + } + + + static void + gxv_just_actSubrecord_type1_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort addGlyph; + + + GXV_LIMIT_CHECK( 2 ); + addGlyph = FT_NEXT_USHORT( p ); + + gxv_just_check_max_gid( addGlyph, "type1:addGlyph", valid ); + + valid->subtable_length = p - table; + } + + + static void + gxv_just_actSubrecord_type2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; +#ifdef GXV_LOAD_UNUSED_VARS + FT_Fixed substThreshhold; /* Apple misspelled "Threshhold" */ +#endif + FT_UShort addGlyph; + FT_UShort substGlyph; + + + GXV_LIMIT_CHECK( 4 + 2 + 2 ); +#ifdef GXV_LOAD_UNUSED_VARS + substThreshhold = FT_NEXT_ULONG( p ); +#else + p += 4; +#endif + addGlyph = FT_NEXT_USHORT( p ); + substGlyph = FT_NEXT_USHORT( p ); + + if ( addGlyph != 0xFFFF ) + gxv_just_check_max_gid( addGlyph, "type2:addGlyph", valid ); + + gxv_just_check_max_gid( substGlyph, "type2:substGlyph", valid ); + + valid->subtable_length = p - table; + } + + + static void + gxv_just_actSubrecord_type4_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_ULong variantsAxis; + FT_Fixed minimumLimit; + FT_Fixed noStretchValue; + FT_Fixed maximumLimit; + + + GXV_LIMIT_CHECK( 4 + 4 + 4 + 4 ); + variantsAxis = FT_NEXT_ULONG( p ); + minimumLimit = FT_NEXT_ULONG( p ); + noStretchValue = FT_NEXT_ULONG( p ); + maximumLimit = FT_NEXT_ULONG( p ); + + valid->subtable_length = p - table; + + if ( variantsAxis != 0x64756374 ) /* 'duct' */ + GXV_TRACE(( "variantsAxis 0x%08x is non default value", + variantsAxis )); + + if ( minimumLimit > noStretchValue ) + GXV_TRACE(( "type4:minimumLimit 0x%08x > noStretchValue 0x%08x\n", + minimumLimit, noStretchValue )); + else if ( noStretchValue > maximumLimit ) + GXV_TRACE(( "type4:noStretchValue 0x%08x > maximumLimit 0x%08x\n", + noStretchValue, maximumLimit )); + else if ( !IS_PARANOID_VALIDATION ) + return; + + FT_INVALID_DATA; + } + + + static void + gxv_just_actSubrecord_type5_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort flags; + FT_UShort glyph; + + + GXV_LIMIT_CHECK( 2 + 2 ); + flags = FT_NEXT_USHORT( p ); + glyph = FT_NEXT_USHORT( p ); + + if ( flags ) + GXV_TRACE(( "type5: nonzero value 0x%04x in unused flags\n", + flags )); + gxv_just_check_max_gid( glyph, "type5:glyph", valid ); + + valid->subtable_length = p - table; + } + + + /* parse single actSubrecord */ + static void + gxv_just_actSubrecord_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort actionClass; + FT_UShort actionType; + FT_ULong actionLength; + + + GXV_NAME_ENTER( "just actSubrecord" ); + + GXV_LIMIT_CHECK( 2 + 2 + 4 ); + actionClass = FT_NEXT_USHORT( p ); + actionType = FT_NEXT_USHORT( p ); + actionLength = FT_NEXT_ULONG( p ); + + /* actionClass is related with justClass using 7bit only */ + if ( ( actionClass & 0xFF80 ) != 0 ) + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + + if ( actionType == 0 ) + gxv_just_actSubrecord_type0_validate( p, limit, valid ); + else if ( actionType == 1 ) + gxv_just_actSubrecord_type1_validate( p, limit, valid ); + else if ( actionType == 2 ) + gxv_just_actSubrecord_type2_validate( p, limit, valid ); + else if ( actionType == 3 ) + ; /* Stretch glyph action: no actionData */ + else if ( actionType == 4 ) + gxv_just_actSubrecord_type4_validate( p, limit, valid ); + else if ( actionType == 5 ) + gxv_just_actSubrecord_type5_validate( p, limit, valid ); + else + FT_INVALID_DATA; + + valid->subtable_length = actionLength; + + GXV_EXIT; + } + + + static void + gxv_just_pcActionRecord_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_ULong actionCount; + FT_ULong i; + + + GXV_LIMIT_CHECK( 4 ); + actionCount = FT_NEXT_ULONG( p ); + GXV_TRACE(( "actionCount = %d\n", actionCount )); + + for ( i = 0; i < actionCount; i++ ) + { + gxv_just_actSubrecord_validate( p, limit, valid ); + p += valid->subtable_length; + } + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + static void + gxv_just_pcTable_LookupValue_entry_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_UNUSED( glyph ); + + if ( value_p->u > GXV_JUST_DATA( pc_offset_max ) ) + GXV_JUST_DATA( pc_offset_max ) = value_p->u; + if ( value_p->u < GXV_JUST_DATA( pc_offset_max ) ) + GXV_JUST_DATA( pc_offset_min ) = value_p->u; + } + + + static void + gxv_just_pcLookupTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + GXV_NAME_ENTER( "just pcLookupTable" ); + GXV_JUST_DATA( pc_offset_max ) = 0x0000; + GXV_JUST_DATA( pc_offset_min ) = 0xFFFFU; + + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_just_pcTable_LookupValue_entry_validate; + + gxv_LookupTable_validate( p, limit, valid ); + + /* subtable_length is set by gxv_LookupTable_validate() */ + + GXV_EXIT; + } + + + static void + gxv_just_postcompTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + GXV_NAME_ENTER( "just postcompTable" ); + + gxv_just_pcLookupTable_validate( p, limit, valid ); + p += valid->subtable_length; + + gxv_just_pcActionRecord_validate( p, limit, valid ); + p += valid->subtable_length; + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + static void + gxv_just_classTable_entry_validate( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + /* TODO: validate markClass & currentClass */ + FT_UShort setMark; + FT_UShort dontAdvance; + FT_UShort markClass; + FT_UShort currentClass; +#endif + + FT_UNUSED( state ); + FT_UNUSED( glyphOffset_p ); + FT_UNUSED( table ); + FT_UNUSED( limit ); + FT_UNUSED( valid ); + +#ifndef GXV_LOAD_UNUSED_VARS + FT_UNUSED( flags ); +#else + setMark = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); + markClass = (FT_UShort)( ( flags >> 7 ) & 0x7F ); + currentClass = (FT_UShort)( flags & 0x7F ); +#endif + } + + + static void + gxv_just_justClassTable_validate ( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort length; + FT_UShort coverage; + FT_ULong subFeatureFlags; + + + GXV_NAME_ENTER( "just justClassTable" ); + + GXV_LIMIT_CHECK( 2 + 2 + 4 ); + length = FT_NEXT_USHORT( p ); + coverage = FT_NEXT_USHORT( p ); + subFeatureFlags = FT_NEXT_ULONG( p ); + + GXV_TRACE(( " justClassTable: coverage = 0x%04x (%s) ", coverage )); + if ( ( coverage & 0x4000 ) == 0 ) + GXV_TRACE(( "ascending\n" )); + else + GXV_TRACE(( "descending\n" )); + + if ( subFeatureFlags ) + GXV_TRACE(( " justClassTable: nonzero value (0x%08x)" + " in unused subFeatureFlags\n", subFeatureFlags )); + + valid->statetable.optdata = NULL; + valid->statetable.optdata_load_func = NULL; + valid->statetable.subtable_setup_func = NULL; + valid->statetable.entry_glyphoffset_fmt = GXV_GLYPHOFFSET_NONE; + valid->statetable.entry_validate_func = + gxv_just_classTable_entry_validate; + + gxv_StateTable_validate( p, table + length, valid ); + + /* subtable_length is set by gxv_LookupTable_validate() */ + + GXV_EXIT; + } + + + static void + gxv_just_wdcTable_LookupValue_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_UNUSED( glyph ); + + if ( value_p->u > GXV_JUST_DATA( wdc_offset_max ) ) + GXV_JUST_DATA( wdc_offset_max ) = value_p->u; + if ( value_p->u < GXV_JUST_DATA( wdc_offset_min ) ) + GXV_JUST_DATA( wdc_offset_min ) = value_p->u; + } + + + static void + gxv_just_justData_lookuptable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + GXV_JUST_DATA( wdc_offset_max ) = 0x0000; + GXV_JUST_DATA( wdc_offset_min ) = 0xFFFFU; + + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_just_wdcTable_LookupValue_validate; + + gxv_LookupTable_validate( p, limit, valid ); + + /* subtable_length is set by gxv_LookupTable_validate() */ + + GXV_EXIT; + } + + + /* + * gxv_just_justData_validate() parses and validates horizData, vertData. + */ + static void + gxv_just_justData_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + /* + * following 3 offsets are measured from the start of `just' + * (which table points to), not justData + */ + FT_UShort justClassTableOffset; + FT_UShort wdcTableOffset; + FT_UShort pcTableOffset; + FT_Bytes p = table; + + GXV_ODTECT( 4, odtect ); + + + GXV_NAME_ENTER( "just justData" ); + + GXV_ODTECT_INIT( odtect ); + GXV_LIMIT_CHECK( 2 + 2 + 2 ); + justClassTableOffset = FT_NEXT_USHORT( p ); + wdcTableOffset = FT_NEXT_USHORT( p ); + pcTableOffset = FT_NEXT_USHORT( p ); + + GXV_TRACE(( " (justClassTableOffset = 0x%04x)\n", justClassTableOffset )); + GXV_TRACE(( " (wdcTableOffset = 0x%04x)\n", wdcTableOffset )); + GXV_TRACE(( " (pcTableOffset = 0x%04x)\n", pcTableOffset )); + + gxv_just_justData_lookuptable_validate( p, limit, valid ); + gxv_odtect_add_range( p, valid->subtable_length, + "just_LookupTable", odtect ); + + if ( wdcTableOffset ) + { + gxv_just_widthDeltaClusters_validate( + valid->root->base + wdcTableOffset, limit, valid ); + gxv_odtect_add_range( valid->root->base + wdcTableOffset, + valid->subtable_length, "just_wdcTable", odtect ); + } + + if ( pcTableOffset ) + { + gxv_just_postcompTable_validate( valid->root->base + pcTableOffset, + limit, valid ); + gxv_odtect_add_range( valid->root->base + pcTableOffset, + valid->subtable_length, "just_pcTable", odtect ); + } + + if ( justClassTableOffset ) + { + gxv_just_justClassTable_validate( + valid->root->base + justClassTableOffset, limit, valid ); + gxv_odtect_add_range( valid->root->base + justClassTableOffset, + valid->subtable_length, "just_justClassTable", + odtect ); + } + + gxv_odtect_validate( odtect, valid ); + + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_just_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + FT_Bytes p = table; + FT_Bytes limit = 0; + + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + GXV_just_DataRec justrec; + GXV_just_Data just = &justrec; + + FT_ULong version; + FT_UShort format; + FT_UShort horizOffset; + FT_UShort vertOffset; + + GXV_ODTECT( 3, odtect ); + + + GXV_ODTECT_INIT( odtect ); + + valid->root = ftvalid; + valid->table_data = just; + valid->face = face; + + FT_TRACE3(( "validating `just' table\n" )); + GXV_INIT; + + limit = valid->root->limit; + + GXV_LIMIT_CHECK( 4 + 2 + 2 + 2 ); + version = FT_NEXT_ULONG( p ); + format = FT_NEXT_USHORT( p ); + horizOffset = FT_NEXT_USHORT( p ); + vertOffset = FT_NEXT_USHORT( p ); + gxv_odtect_add_range( table, p - table, "just header", odtect ); + + + /* Version 1.0 (always:2000) */ + GXV_TRACE(( " (version = 0x%08x)\n", version )); + if ( version != 0x00010000UL ) + FT_INVALID_FORMAT; + + /* format 0 (always:2000) */ + GXV_TRACE(( " (format = 0x%04x)\n", format )); + if ( format != 0x0000 ) + FT_INVALID_FORMAT; + + GXV_TRACE(( " (horizOffset = %d)\n", horizOffset )); + GXV_TRACE(( " (vertOffset = %d)\n", vertOffset )); + + + /* validate justData */ + if ( 0 < horizOffset ) + { + gxv_just_justData_validate( table + horizOffset, limit, valid ); + gxv_odtect_add_range( table + horizOffset, valid->subtable_length, + "horizJustData", odtect ); + } + + if ( 0 < vertOffset ) + { + gxv_just_justData_validate( table + vertOffset, limit, valid ); + gxv_odtect_add_range( table + vertOffset, valid->subtable_length, + "vertJustData", odtect ); + } + + gxv_odtect_validate( odtect, valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/gxvalid/gxvkern.c b/src/gxvalid/gxvkern.c new file mode 100644 index 0000000..0ec978f --- /dev/null +++ b/src/gxvalid/gxvkern.c @@ -0,0 +1,922 @@ +/***************************************************************************/ +/* */ +/* gxvkern.c */ +/* */ +/* TrueTypeGX/AAT kern table validation (body). */ +/* */ +/* Copyright 2004, 2005, 2006, 2007 */ +/* by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + +#include FT_SFNT_NAMES_H +#include FT_SERVICE_GX_VALIDATE_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvkern + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef enum GXV_kern_Version_ + { + KERN_VERSION_CLASSIC = 0x0000, + KERN_VERSION_NEW = 0x0001 + + } GXV_kern_Version; + + + typedef enum GXV_kern_Dialect_ + { + KERN_DIALECT_UNKNOWN = 0, + KERN_DIALECT_MS = FT_VALIDATE_MS, + KERN_DIALECT_APPLE = FT_VALIDATE_APPLE, + KERN_DIALECT_ANY = FT_VALIDATE_CKERN + + } GXV_kern_Dialect; + + + typedef struct GXV_kern_DataRec_ + { + GXV_kern_Version version; + void *subtable_data; + GXV_kern_Dialect dialect_request; + + } GXV_kern_DataRec, *GXV_kern_Data; + + +#define GXV_KERN_DATA( field ) GXV_TABLE_DATA( kern, field ) + +#define KERN_IS_CLASSIC( valid ) \ + ( KERN_VERSION_CLASSIC == GXV_KERN_DATA( version ) ) +#define KERN_IS_NEW( valid ) \ + ( KERN_VERSION_NEW == GXV_KERN_DATA( version ) ) + +#define KERN_DIALECT( valid ) \ + GXV_KERN_DATA( dialect_request ) +#define KERN_ALLOWS_MS( valid ) \ + ( KERN_DIALECT( valid ) & KERN_DIALECT_MS ) +#define KERN_ALLOWS_APPLE( valid ) \ + ( KERN_DIALECT( valid ) & KERN_DIALECT_APPLE ) + +#define GXV_KERN_HEADER_SIZE ( KERN_IS_NEW( valid ) ? 8 : 4 ) +#define GXV_KERN_SUBTABLE_HEADER_SIZE ( KERN_IS_NEW( valid ) ? 8 : 6 ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SUBTABLE VALIDATORS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* ============================= format 0 ============================== */ + + static void + gxv_kern_subtable_fmt0_pairs_validate( FT_Bytes table, + FT_Bytes limit, + FT_UShort nPairs, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort i; + + FT_UShort last_gid_left = 0; + FT_UShort last_gid_right = 0; + + FT_UNUSED( limit ); + + + GXV_NAME_ENTER( "kern format 0 pairs" ); + + for ( i = 0; i < nPairs; i++ ) + { + FT_UShort gid_left; + FT_UShort gid_right; +#ifdef GXV_LOAD_UNUSED_VARS + FT_Short kernValue; +#endif + + + /* left */ + gid_left = FT_NEXT_USHORT( p ); + gxv_glyphid_validate( gid_left, valid ); + + /* right */ + gid_right = FT_NEXT_USHORT( p ); + gxv_glyphid_validate( gid_right, valid ); + + /* Pairs of left and right GIDs must be unique and sorted. */ + GXV_TRACE(( "left gid = %u, right gid = %u\n", gid_left, gid_right )); + if ( gid_left == last_gid_left ) + { + if ( last_gid_right < gid_right ) + last_gid_right = gid_right; + else + FT_INVALID_DATA; + } + else if ( last_gid_left < gid_left ) + { + last_gid_left = gid_left; + last_gid_right = gid_right; + } + else + FT_INVALID_DATA; + + /* skip the kern value */ +#ifdef GXV_LOAD_UNUSED_VARS + kernValue = FT_NEXT_SHORT( p ); +#else + p += 2; +#endif + } + + GXV_EXIT; + } + + static void + gxv_kern_subtable_fmt0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table + GXV_KERN_SUBTABLE_HEADER_SIZE; + + FT_UShort nPairs; + FT_UShort unitSize; + + + GXV_NAME_ENTER( "kern subtable format 0" ); + + unitSize = 2 + 2 + 2; + nPairs = 0; + + /* nPairs, searchRange, entrySelector, rangeShift */ + GXV_LIMIT_CHECK( 2 + 2 + 2 + 2 ); + gxv_BinSrchHeader_validate( p, limit, &unitSize, &nPairs, valid ); + p += 2 + 2 + 2 + 2; + + gxv_kern_subtable_fmt0_pairs_validate( p, limit, nPairs, valid ); + + GXV_EXIT; + } + + + /* ============================= format 1 ============================== */ + + + typedef struct GXV_kern_fmt1_StateOptRec_ + { + FT_UShort valueTable; + FT_UShort valueTable_length; + + } GXV_kern_fmt1_StateOptRec, *GXV_kern_fmt1_StateOptRecData; + + + static void + gxv_kern_subtable_fmt1_valueTable_load( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + GXV_kern_fmt1_StateOptRecData optdata = + (GXV_kern_fmt1_StateOptRecData)valid->statetable.optdata; + + + GXV_LIMIT_CHECK( 2 ); + optdata->valueTable = FT_NEXT_USHORT( p ); + } + + + /* + * passed tables_size covers whole StateTable, including kern fmt1 header + */ + static void + gxv_kern_subtable_fmt1_subtable_setup( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort* classTable_length_p, + FT_UShort* stateArray_length_p, + FT_UShort* entryTable_length_p, + GXV_Validator valid ) + { + FT_UShort o[4]; + FT_UShort *l[4]; + FT_UShort buff[5]; + + GXV_kern_fmt1_StateOptRecData optdata = + (GXV_kern_fmt1_StateOptRecData)valid->statetable.optdata; + + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + o[3] = optdata->valueTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + l[3] = &(optdata->valueTable_length); + + gxv_set_length_by_ushort_offset( o, l, buff, 4, table_size, valid ); + } + + + /* + * passed table & limit are of whole StateTable, not including subtables + */ + static void + gxv_kern_subtable_fmt1_entry_validate( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort push; + FT_UShort dontAdvance; +#endif + FT_UShort valueOffset; +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort kernAction; + FT_UShort kernValue; +#endif + + FT_UNUSED( state ); + FT_UNUSED( glyphOffset_p ); + + +#ifdef GXV_LOAD_UNUSED_VARS + push = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); +#endif + valueOffset = (FT_UShort)( flags & 0x3FFF ); + + { + GXV_kern_fmt1_StateOptRecData vt_rec = + (GXV_kern_fmt1_StateOptRecData)valid->statetable.optdata; + FT_Bytes p; + + + if ( valueOffset < vt_rec->valueTable ) + FT_INVALID_OFFSET; + + p = table + valueOffset; + limit = table + vt_rec->valueTable + vt_rec->valueTable_length; + + GXV_LIMIT_CHECK( 2 + 2 ); +#ifdef GXV_LOAD_UNUSED_VARS + kernAction = FT_NEXT_USHORT( p ); + kernValue = FT_NEXT_USHORT( p ); +#else + p += 4; +#endif + } + } + + + static void + gxv_kern_subtable_fmt1_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + GXV_kern_fmt1_StateOptRec vt_rec; + + + GXV_NAME_ENTER( "kern subtable format 1" ); + + valid->statetable.optdata = + &vt_rec; + valid->statetable.optdata_load_func = + gxv_kern_subtable_fmt1_valueTable_load; + valid->statetable.subtable_setup_func = + gxv_kern_subtable_fmt1_subtable_setup; + valid->statetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_NONE; + valid->statetable.entry_validate_func = + gxv_kern_subtable_fmt1_entry_validate; + + gxv_StateTable_validate( p, limit, valid ); + + GXV_EXIT; + } + + + /* ================ Data for Class-Based Subtables 2, 3 ================ */ + + typedef enum GXV_kern_ClassSpec_ + { + GXV_KERN_CLS_L = 0, + GXV_KERN_CLS_R + + } GXV_kern_ClassSpec; + + + /* ============================= format 2 ============================== */ + + /* ---------------------- format 2 specific data ----------------------- */ + + typedef struct GXV_kern_subtable_fmt2_DataRec_ + { + FT_UShort rowWidth; + FT_UShort array; + FT_UShort offset_min[2]; + FT_UShort offset_max[2]; + const FT_String* class_tag[2]; + GXV_odtect_Range odtect; + + } GXV_kern_subtable_fmt2_DataRec, *GXV_kern_subtable_fmt2_Data; + + +#define GXV_KERN_FMT2_DATA( field ) \ + ( ( (GXV_kern_subtable_fmt2_DataRec *) \ + ( GXV_KERN_DATA( subtable_data ) ) )->field ) + + + /* -------------------------- utility functions ----------------------- */ + + static void + gxv_kern_subtable_fmt2_clstbl_validate( FT_Bytes table, + FT_Bytes limit, + GXV_kern_ClassSpec spec, + GXV_Validator valid ) + { + const FT_String* tag = GXV_KERN_FMT2_DATA( class_tag[spec] ); + GXV_odtect_Range odtect = GXV_KERN_FMT2_DATA( odtect ); + + FT_Bytes p = table; + FT_UShort firstGlyph; + FT_UShort nGlyphs; + + + GXV_NAME_ENTER( "kern format 2 classTable" ); + + GXV_LIMIT_CHECK( 2 + 2 ); + firstGlyph = FT_NEXT_USHORT( p ); + nGlyphs = FT_NEXT_USHORT( p ); + GXV_TRACE(( " %s firstGlyph=%d, nGlyphs=%d\n", + tag, firstGlyph, nGlyphs )); + + gxv_glyphid_validate( firstGlyph, valid ); + gxv_glyphid_validate( (FT_UShort)( firstGlyph + nGlyphs - 1 ), valid ); + + gxv_array_getlimits_ushort( p, p + ( 2 * nGlyphs ), + &( GXV_KERN_FMT2_DATA( offset_min[spec] ) ), + &( GXV_KERN_FMT2_DATA( offset_max[spec] ) ), + valid ); + + gxv_odtect_add_range( table, 2 * nGlyphs, tag, odtect ); + + GXV_EXIT; + } + + + static void + gxv_kern_subtable_fmt2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + GXV_ODTECT( 3, odtect ); + GXV_kern_subtable_fmt2_DataRec fmt2_rec = + { 0, 0, { 0, 0 }, { 0, 0 }, { "leftClass", "rightClass" }, NULL }; + + FT_Bytes p = table + GXV_KERN_SUBTABLE_HEADER_SIZE; + FT_UShort leftOffsetTable; + FT_UShort rightOffsetTable; + + + GXV_NAME_ENTER( "kern subtable format 2" ); + + GXV_ODTECT_INIT( odtect ); + fmt2_rec.odtect = odtect; + GXV_KERN_DATA( subtable_data ) = &fmt2_rec; + + GXV_LIMIT_CHECK( 2 + 2 + 2 + 2 ); + GXV_KERN_FMT2_DATA( rowWidth ) = FT_NEXT_USHORT( p ); + leftOffsetTable = FT_NEXT_USHORT( p ); + rightOffsetTable = FT_NEXT_USHORT( p ); + GXV_KERN_FMT2_DATA( array ) = FT_NEXT_USHORT( p ); + + GXV_TRACE(( "rowWidth = %d\n", GXV_KERN_FMT2_DATA( rowWidth ) )); + + + GXV_LIMIT_CHECK( leftOffsetTable ); + GXV_LIMIT_CHECK( rightOffsetTable ); + GXV_LIMIT_CHECK( GXV_KERN_FMT2_DATA( array ) ); + + gxv_kern_subtable_fmt2_clstbl_validate( table + leftOffsetTable, limit, + GXV_KERN_CLS_L, valid ); + + gxv_kern_subtable_fmt2_clstbl_validate( table + rightOffsetTable, limit, + GXV_KERN_CLS_R, valid ); + + if ( GXV_KERN_FMT2_DATA( offset_min[GXV_KERN_CLS_L] ) + + GXV_KERN_FMT2_DATA( offset_min[GXV_KERN_CLS_R] ) + < GXV_KERN_FMT2_DATA( array ) ) + FT_INVALID_OFFSET; + + gxv_odtect_add_range( table + GXV_KERN_FMT2_DATA( array ), + GXV_KERN_FMT2_DATA( offset_max[GXV_KERN_CLS_L] ) + + GXV_KERN_FMT2_DATA( offset_max[GXV_KERN_CLS_R] ) + - GXV_KERN_FMT2_DATA( array ), + "array", odtect ); + + gxv_odtect_validate( odtect, valid ); + + GXV_EXIT; + } + + + /* ============================= format 3 ============================== */ + + static void + gxv_kern_subtable_fmt3_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table + GXV_KERN_SUBTABLE_HEADER_SIZE; + FT_UShort glyphCount; + FT_Byte kernValueCount; + FT_Byte leftClassCount; + FT_Byte rightClassCount; + FT_Byte flags; + + + GXV_NAME_ENTER( "kern subtable format 3" ); + + GXV_LIMIT_CHECK( 2 + 1 + 1 + 1 + 1 ); + glyphCount = FT_NEXT_USHORT( p ); + kernValueCount = FT_NEXT_BYTE( p ); + leftClassCount = FT_NEXT_BYTE( p ); + rightClassCount = FT_NEXT_BYTE( p ); + flags = FT_NEXT_BYTE( p ); + + if ( valid->face->num_glyphs != glyphCount ) + { + GXV_TRACE(( "maxGID=%d, but glyphCount=%d\n", + valid->face->num_glyphs, glyphCount )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + + if ( flags != 0 ) + GXV_TRACE(( "kern subtable fmt3 has nonzero value" + " (%d) in unused flag\n", flags )); + /* + * just skip kernValue[kernValueCount] + */ + GXV_LIMIT_CHECK( 2 * kernValueCount ); + p += 2 * kernValueCount; + + /* + * check leftClass[gid] < leftClassCount + */ + { + FT_Byte min, max; + + + GXV_LIMIT_CHECK( glyphCount ); + gxv_array_getlimits_byte( p, p + glyphCount, &min, &max, valid ); + p += valid->subtable_length; + + if ( leftClassCount < max ) + FT_INVALID_DATA; + } + + /* + * check rightClass[gid] < rightClassCount + */ + { + FT_Byte min, max; + + + GXV_LIMIT_CHECK( glyphCount ); + gxv_array_getlimits_byte( p, p + glyphCount, &min, &max, valid ); + p += valid->subtable_length; + + if ( rightClassCount < max ) + FT_INVALID_DATA; + } + + /* + * check kernIndex[i, j] < kernValueCount + */ + { + FT_UShort i, j; + + + for ( i = 0; i < leftClassCount; i++ ) + { + for ( j = 0; j < rightClassCount; j++ ) + { + GXV_LIMIT_CHECK( 1 ); + if ( kernValueCount < FT_NEXT_BYTE( p ) ) + FT_INVALID_OFFSET; + } + } + } + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + static FT_Bool + gxv_kern_coverage_new_apple_validate( FT_UShort coverage, + FT_UShort* format, + GXV_Validator valid ) + { + /* new Apple-dialect */ +#ifdef GXV_LOAD_TRACE_VARS + FT_Bool kernVertical; + FT_Bool kernCrossStream; + FT_Bool kernVariation; +#endif + + FT_UNUSED( valid ); + + + /* reserved bits = 0 */ + if ( coverage & 0x1FFC ) + return FALSE; + +#ifdef GXV_LOAD_TRACE_VARS + kernVertical = FT_BOOL( ( coverage >> 15 ) & 1 ); + kernCrossStream = FT_BOOL( ( coverage >> 14 ) & 1 ); + kernVariation = FT_BOOL( ( coverage >> 13 ) & 1 ); +#endif + + *format = (FT_UShort)( coverage & 0x0003 ); + + GXV_TRACE(( "new Apple-dialect: " + "horizontal=%d, cross-stream=%d, variation=%d, format=%d\n", + !kernVertical, kernCrossStream, kernVariation, *format )); + + GXV_TRACE(( "kerning values in Apple format subtable are ignored\n" )); + + return TRUE; + } + + + static FT_Bool + gxv_kern_coverage_classic_apple_validate( FT_UShort coverage, + FT_UShort* format, + GXV_Validator valid ) + { + /* classic Apple-dialect */ +#ifdef GXV_LOAD_TRACE_VARS + FT_Bool horizontal; + FT_Bool cross_stream; +#endif + + + /* check expected flags, but don't check if MS-dialect is impossible */ + if ( !( coverage & 0xFD00 ) && KERN_ALLOWS_MS( valid ) ) + return FALSE; + + /* reserved bits = 0 */ + if ( coverage & 0x02FC ) + return FALSE; + +#ifdef GXV_LOAD_TRACE_VARS + horizontal = FT_BOOL( ( coverage >> 15 ) & 1 ); + cross_stream = FT_BOOL( ( coverage >> 13 ) & 1 ); +#endif + + *format = (FT_UShort)( coverage & 0x0003 ); + + GXV_TRACE(( "classic Apple-dialect: " + "horizontal=%d, cross-stream=%d, format=%d\n", + horizontal, cross_stream, *format )); + + /* format 1 requires GX State Machine, too new for classic */ + if ( *format == 1 ) + return FALSE; + + GXV_TRACE(( "kerning values in Apple format subtable are ignored\n" )); + + return TRUE; + } + + + static FT_Bool + gxv_kern_coverage_classic_microsoft_validate( FT_UShort coverage, + FT_UShort* format, + GXV_Validator valid ) + { + /* classic Microsoft-dialect */ +#ifdef GXV_LOAD_TRACE_VARS + FT_Bool horizontal; + FT_Bool minimum; + FT_Bool cross_stream; + FT_Bool override; +#endif + + FT_UNUSED( valid ); + + + /* reserved bits = 0 */ + if ( coverage & 0xFDF0 ) + return FALSE; + +#ifdef GXV_LOAD_TRACE_VARS + horizontal = FT_BOOL( coverage & 1 ); + minimum = FT_BOOL( ( coverage >> 1 ) & 1 ); + cross_stream = FT_BOOL( ( coverage >> 2 ) & 1 ); + override = FT_BOOL( ( coverage >> 3 ) & 1 ); +#endif + + *format = (FT_UShort)( ( coverage >> 8 ) & 0x0003 ); + + GXV_TRACE(( "classic Microsoft-dialect: " + "horizontal=%d, minimum=%d, cross-stream=%d, " + "override=%d, format=%d\n", + horizontal, minimum, cross_stream, override, *format )); + + if ( *format == 2 ) + GXV_TRACE(( + "kerning values in Microsoft format 2 subtable are ignored\n" )); + + return TRUE; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MAIN *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static GXV_kern_Dialect + gxv_kern_coverage_validate( FT_UShort coverage, + FT_UShort* format, + GXV_Validator valid ) + { + GXV_kern_Dialect result = KERN_DIALECT_UNKNOWN; + + + GXV_NAME_ENTER( "validating coverage" ); + + GXV_TRACE(( "interprete coverage 0x%04x by Apple style\n", coverage )); + + if ( KERN_IS_NEW( valid ) ) + { + if ( gxv_kern_coverage_new_apple_validate( coverage, + format, + valid ) ) + { + result = KERN_DIALECT_APPLE; + goto Exit; + } + } + + if ( KERN_IS_CLASSIC( valid ) && KERN_ALLOWS_APPLE( valid ) ) + { + if ( gxv_kern_coverage_classic_apple_validate( coverage, + format, + valid ) ) + { + result = KERN_DIALECT_APPLE; + goto Exit; + } + } + + if ( KERN_IS_CLASSIC( valid ) && KERN_ALLOWS_MS( valid ) ) + { + if ( gxv_kern_coverage_classic_microsoft_validate( coverage, + format, + valid ) ) + { + result = KERN_DIALECT_MS; + goto Exit; + } + } + + GXV_TRACE(( "cannot interprete coverage, broken kern subtable\n" )); + + Exit: + GXV_EXIT; + return result; + } + + + static void + gxv_kern_subtable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; +#ifdef GXV_LOAD_TRACE_VARS + FT_UShort version = 0; /* MS only: subtable version, unused */ +#endif + FT_ULong length; /* MS: 16bit, Apple: 32bit*/ + FT_UShort coverage; +#ifdef GXV_LOAD_TRACE_VARS + FT_UShort tupleIndex = 0; /* Apple only */ +#endif + FT_UShort u16[2]; + FT_UShort format = 255; /* subtable format */ + + + GXV_NAME_ENTER( "kern subtable" ); + + GXV_LIMIT_CHECK( 2 + 2 + 2 ); + u16[0] = FT_NEXT_USHORT( p ); /* Apple: length_hi MS: version */ + u16[1] = FT_NEXT_USHORT( p ); /* Apple: length_lo MS: length */ + coverage = FT_NEXT_USHORT( p ); + + switch ( gxv_kern_coverage_validate( coverage, &format, valid ) ) + { + case KERN_DIALECT_MS: +#ifdef GXV_LOAD_TRACE_VARS + version = u16[0]; +#endif + length = u16[1]; +#ifdef GXV_LOAD_TRACE_VARS + tupleIndex = 0; +#endif + GXV_TRACE(( "Subtable version = %d\n", version )); + GXV_TRACE(( "Subtable length = %d\n", length )); + break; + + case KERN_DIALECT_APPLE: +#ifdef GXV_LOAD_TRACE_VARS + version = 0; +#endif + length = ( u16[0] << 16 ) + u16[1]; +#ifdef GXV_LOAD_TRACE_VARS + tupleIndex = 0; +#endif + GXV_TRACE(( "Subtable length = %d\n", length )); + + if ( KERN_IS_NEW( valid ) ) + { + GXV_LIMIT_CHECK( 2 ); +#ifdef GXV_LOAD_TRACE_VARS + tupleIndex = FT_NEXT_USHORT( p ); +#else + p += 2; +#endif + GXV_TRACE(( "Subtable tupleIndex = %d\n", tupleIndex )); + } + break; + + default: + length = u16[1]; + GXV_TRACE(( "cannot detect subtable dialect, " + "just skip %d byte\n", length )); + goto Exit; + } + + /* formats 1, 2, 3 require the position of the start of this subtable */ + if ( format == 0 ) + gxv_kern_subtable_fmt0_validate( table, table + length, valid ); + else if ( format == 1 ) + gxv_kern_subtable_fmt1_validate( table, table + length, valid ); + else if ( format == 2 ) + gxv_kern_subtable_fmt2_validate( table, table + length, valid ); + else if ( format == 3 ) + gxv_kern_subtable_fmt3_validate( table, table + length, valid ); + else + FT_INVALID_DATA; + + Exit: + valid->subtable_length = length; + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** kern TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_kern_validate_generic( FT_Bytes table, + FT_Face face, + FT_Bool classic_only, + GXV_kern_Dialect dialect_request, + FT_Validator ftvalid ) + { + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + + GXV_kern_DataRec kernrec; + GXV_kern_Data kern = &kernrec; + + FT_Bytes p = table; + FT_Bytes limit = 0; + + FT_ULong nTables = 0; + FT_UInt i; + + + valid->root = ftvalid; + valid->table_data = kern; + valid->face = face; + + FT_TRACE3(( "validating `kern' table\n" )); + GXV_INIT; + KERN_DIALECT( valid ) = dialect_request; + + GXV_LIMIT_CHECK( 2 ); + GXV_KERN_DATA( version ) = (GXV_kern_Version)FT_NEXT_USHORT( p ); + GXV_TRACE(( "version 0x%04x (higher 16bit)\n", + GXV_KERN_DATA( version ) )); + + if ( 0x0001 < GXV_KERN_DATA( version ) ) + FT_INVALID_FORMAT; + else if ( KERN_IS_CLASSIC( valid ) ) + { + GXV_LIMIT_CHECK( 2 ); + nTables = FT_NEXT_USHORT( p ); + } + else if ( KERN_IS_NEW( valid ) ) + { + if ( classic_only ) + FT_INVALID_FORMAT; + + if ( 0x0000 != FT_NEXT_USHORT( p ) ) + FT_INVALID_FORMAT; + + GXV_LIMIT_CHECK( 4 ); + nTables = FT_NEXT_ULONG( p ); + } + + for ( i = 0; i < nTables; i++ ) + { + GXV_TRACE(( "validating subtable %d/%d\n", i, nTables )); + /* p should be 32bit-aligned? */ + gxv_kern_subtable_validate( p, 0, valid ); + p += valid->subtable_length; + } + + FT_TRACE4(( "\n" )); + } + + + FT_LOCAL_DEF( void ) + gxv_kern_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + gxv_kern_validate_generic( table, face, 0, KERN_DIALECT_ANY, ftvalid ); + } + + + FT_LOCAL_DEF( void ) + gxv_kern_validate_classic( FT_Bytes table, + FT_Face face, + FT_Int dialect_flags, + FT_Validator ftvalid ) + { + GXV_kern_Dialect dialect_request; + + + dialect_request = (GXV_kern_Dialect)dialect_flags; + gxv_kern_validate_generic( table, face, 1, dialect_request, ftvalid ); + } + + +/* END */ diff --git a/src/gxvalid/gxvlcar.c b/src/gxvalid/gxvlcar.c new file mode 100644 index 0000000..f14fa5b --- /dev/null +++ b/src/gxvalid/gxvlcar.c @@ -0,0 +1,223 @@ +/***************************************************************************/ +/* */ +/* gxvlcar.c */ +/* */ +/* TrueTypeGX/AAT lcar table validation (body). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvlcar + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct GXV_lcar_DataRec_ + { + FT_UShort format; + + } GXV_lcar_DataRec, *GXV_lcar_Data; + + +#define GXV_LCAR_DATA( FIELD ) GXV_TABLE_DATA( lcar, FIELD ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_lcar_partial_validate( FT_UShort partial, + FT_UShort glyph, + GXV_Validator valid ) + { + GXV_NAME_ENTER( "partial" ); + + if ( GXV_LCAR_DATA( format ) != 1 ) + goto Exit; + + gxv_ctlPoint_validate( glyph, partial, valid ); + + Exit: + GXV_EXIT; + } + + + static void + gxv_lcar_LookupValue_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_Bytes p = valid->root->base + value_p->u; + FT_Bytes limit = valid->root->limit; + FT_UShort count; + FT_Short partial; + FT_UShort i; + + + GXV_NAME_ENTER( "element in lookupTable" ); + + GXV_LIMIT_CHECK( 2 ); + count = FT_NEXT_USHORT( p ); + + GXV_LIMIT_CHECK( 2 * count ); + for ( i = 0; i < count; i++ ) + { + partial = FT_NEXT_SHORT( p ); + gxv_lcar_partial_validate( partial, glyph, valid ); + } + + GXV_EXIT; + } + + + /* + +------ lcar --------------------+ + | | + | +===============+ | + | | looup header | | + | +===============+ | + | | BinSrchHeader | | + | +===============+ | + | | lastGlyph[0] | | + | +---------------+ | + | | firstGlyph[0] | | head of lcar sfnt table + | +---------------+ | + + | | offset[0] | -> | offset [byte] + | +===============+ | + + | | lastGlyph[1] | | (glyphID - firstGlyph) * 2 [byte] + | +---------------+ | + | | firstGlyph[1] | | + | +---------------+ | + | | offset[1] | | + | +===============+ | + | | + | .... | + | | + | 16bit value array | + | +===============+ | + +------| value | <-------+ + | .... + | + | + | + | + | + +----> lcar values...handled by lcar callback function + */ + + static GXV_LookupValueDesc + gxv_lcar_LookupFmt4_transit( FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + FT_Bytes p; + FT_Bytes limit; + FT_UShort offset; + GXV_LookupValueDesc value; + + FT_UNUSED( lookuptbl_limit ); + + /* XXX: check range? */ + offset = (FT_UShort)( base_value_p->u + + relative_gindex * sizeof ( FT_UShort ) ); + p = valid->root->base + offset; + limit = valid->root->limit; + + GXV_LIMIT_CHECK ( 2 ); + value.u = FT_NEXT_USHORT( p ); + + return value; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** lcar TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_lcar_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + FT_Bytes p = table; + FT_Bytes limit = 0; + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + + GXV_lcar_DataRec lcarrec; + GXV_lcar_Data lcar = &lcarrec; + + FT_Fixed version; + + + valid->root = ftvalid; + valid->table_data = lcar; + valid->face = face; + + FT_TRACE3(( "validating `lcar' table\n" )); + GXV_INIT; + + GXV_LIMIT_CHECK( 4 + 2 ); + version = FT_NEXT_ULONG( p ); + GXV_LCAR_DATA( format ) = FT_NEXT_USHORT( p ); + + if ( version != 0x00010000UL) + FT_INVALID_FORMAT; + + if ( GXV_LCAR_DATA( format ) > 1 ) + FT_INVALID_FORMAT; + + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_lcar_LookupValue_validate; + valid->lookupfmt4_trans = gxv_lcar_LookupFmt4_transit; + gxv_LookupTable_validate( p, limit, valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/gxvalid/gxvmod.c b/src/gxvalid/gxvmod.c new file mode 100644 index 0000000..502fe5d --- /dev/null +++ b/src/gxvalid/gxvmod.c @@ -0,0 +1,285 @@ +/***************************************************************************/ +/* */ +/* gxvmod.c */ +/* */ +/* FreeType's TrueTypeGX/AAT validation module implementation (body). */ +/* */ +/* Copyright 2004, 2005, 2006 */ +/* by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_TRUETYPE_TABLES_H +#include FT_TRUETYPE_TAGS_H +#include FT_GX_VALIDATE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_GX_VALIDATE_H + +#include "gxvmod.h" +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmodule + + + static FT_Error + gxv_load_table( FT_Face face, + FT_Tag tag, + FT_Byte* volatile* table, + FT_ULong* table_len ) + { + FT_Error error; + FT_Memory memory = FT_FACE_MEMORY( face ); + + + error = FT_Load_Sfnt_Table( face, tag, 0, NULL, table_len ); + if ( error == GXV_Err_Table_Missing ) + return GXV_Err_Ok; + if ( error ) + goto Exit; + + if ( FT_ALLOC( *table, *table_len ) ) + goto Exit; + + error = FT_Load_Sfnt_Table( face, tag, 0, *table, table_len ); + + Exit: + return error; + } + + +#define GXV_TABLE_DECL( _sfnt ) \ + FT_Byte* volatile _sfnt = NULL; \ + FT_ULong len_ ## _sfnt = 0 + +#define GXV_TABLE_LOAD( _sfnt ) \ + if ( ( FT_VALIDATE_ ## _sfnt ## _INDEX < table_count ) && \ + ( gx_flags & FT_VALIDATE_ ## _sfnt ) ) \ + { \ + error = gxv_load_table( face, TTAG_ ## _sfnt, \ + &_sfnt, &len_ ## _sfnt ); \ + if ( error ) \ + goto Exit; \ + } + +#define GXV_TABLE_VALIDATE( _sfnt ) \ + if ( _sfnt ) \ + { \ + ft_validator_init( &valid, _sfnt, _sfnt + len_ ## _sfnt, \ + FT_VALIDATE_DEFAULT ); \ + if ( ft_setjmp( valid.jump_buffer ) == 0 ) \ + gxv_ ## _sfnt ## _validate( _sfnt, face, &valid ); \ + error = valid.error; \ + if ( error ) \ + goto Exit; \ + } + +#define GXV_TABLE_SET( _sfnt ) \ + if ( FT_VALIDATE_ ## _sfnt ## _INDEX < table_count ) \ + tables[FT_VALIDATE_ ## _sfnt ## _INDEX] = (FT_Bytes)_sfnt + + + static FT_Error + gxv_validate( FT_Face face, + FT_UInt gx_flags, + FT_Bytes tables[FT_VALIDATE_GX_LENGTH], + FT_UInt table_count ) + { + FT_Memory volatile memory = FT_FACE_MEMORY( face ); + + FT_Error error = GXV_Err_Ok; + FT_ValidatorRec volatile valid; + + FT_UInt i; + + + GXV_TABLE_DECL( feat ); + GXV_TABLE_DECL( bsln ); + GXV_TABLE_DECL( trak ); + GXV_TABLE_DECL( just ); + GXV_TABLE_DECL( mort ); + GXV_TABLE_DECL( morx ); + GXV_TABLE_DECL( kern ); + GXV_TABLE_DECL( opbd ); + GXV_TABLE_DECL( prop ); + GXV_TABLE_DECL( lcar ); + + for ( i = 0; i < table_count; i++ ) + tables[i] = 0; + + /* load tables */ + GXV_TABLE_LOAD( feat ); + GXV_TABLE_LOAD( bsln ); + GXV_TABLE_LOAD( trak ); + GXV_TABLE_LOAD( just ); + GXV_TABLE_LOAD( mort ); + GXV_TABLE_LOAD( morx ); + GXV_TABLE_LOAD( kern ); + GXV_TABLE_LOAD( opbd ); + GXV_TABLE_LOAD( prop ); + GXV_TABLE_LOAD( lcar ); + + /* validate tables */ + GXV_TABLE_VALIDATE( feat ); + GXV_TABLE_VALIDATE( bsln ); + GXV_TABLE_VALIDATE( trak ); + GXV_TABLE_VALIDATE( just ); + GXV_TABLE_VALIDATE( mort ); + GXV_TABLE_VALIDATE( morx ); + GXV_TABLE_VALIDATE( kern ); + GXV_TABLE_VALIDATE( opbd ); + GXV_TABLE_VALIDATE( prop ); + GXV_TABLE_VALIDATE( lcar ); + + /* Set results */ + GXV_TABLE_SET( feat ); + GXV_TABLE_SET( mort ); + GXV_TABLE_SET( morx ); + GXV_TABLE_SET( bsln ); + GXV_TABLE_SET( just ); + GXV_TABLE_SET( kern ); + GXV_TABLE_SET( opbd ); + GXV_TABLE_SET( trak ); + GXV_TABLE_SET( prop ); + GXV_TABLE_SET( lcar ); + + Exit: + if ( error ) + { + FT_FREE( feat ); + FT_FREE( bsln ); + FT_FREE( trak ); + FT_FREE( just ); + FT_FREE( mort ); + FT_FREE( morx ); + FT_FREE( kern ); + FT_FREE( opbd ); + FT_FREE( prop ); + FT_FREE( lcar ); + } + + return error; + } + + + static FT_Error + classic_kern_validate( FT_Face face, + FT_UInt ckern_flags, + FT_Bytes* ckern_table ) + { + FT_Memory volatile memory = FT_FACE_MEMORY( face ); + + FT_Byte* volatile ckern = NULL; + FT_ULong len_ckern = 0; + + /* without volatile on `error' GCC 4.1.1. emits: */ + /* warning: variable 'error' might be clobbered by 'longjmp' or 'vfork' */ + /* this warning seems spurious but --- */ + FT_Error volatile error = GXV_Err_Ok; + FT_ValidatorRec volatile valid; + + + *ckern_table = NULL; + + error = gxv_load_table( face, TTAG_kern, &ckern, &len_ckern ); + if ( error ) + goto Exit; + + if ( ckern ) + { + ft_validator_init( &valid, ckern, ckern + len_ckern, + FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + gxv_kern_validate_classic( ckern, face, + ckern_flags & FT_VALIDATE_CKERN, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + *ckern_table = ckern; + + Exit: + if ( error ) + FT_FREE( ckern ); + + return error; + } + + + static + const FT_Service_GXvalidateRec gxvalid_interface = + { + gxv_validate + }; + + + static + const FT_Service_CKERNvalidateRec ckernvalid_interface = + { + classic_kern_validate + }; + + + static + const FT_ServiceDescRec gxvalid_services[] = + { + { FT_SERVICE_ID_GX_VALIDATE, &gxvalid_interface }, + { FT_SERVICE_ID_CLASSICKERN_VALIDATE, &ckernvalid_interface }, + { NULL, NULL } + }; + + + static FT_Pointer + gxvalid_get_service( FT_Module module, + const char* service_id ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( gxvalid_services, service_id ); + } + + + FT_CALLBACK_TABLE_DEF + const FT_Module_Class gxv_module_class = + { + 0, + sizeof ( FT_ModuleRec ), + "gxvalid", + 0x10000L, + 0x20000L, + + 0, /* module-specific interface */ + + (FT_Module_Constructor)0, + (FT_Module_Destructor) 0, + (FT_Module_Requester) gxvalid_get_service + }; + + +/* END */ diff --git a/src/gxvalid/gxvmod.h b/src/gxvalid/gxvmod.h new file mode 100644 index 0000000..22732ba --- /dev/null +++ b/src/gxvalid/gxvmod.h @@ -0,0 +1,50 @@ +/***************************************************************************/ +/* */ +/* gxvmod.h */ +/* */ +/* FreeType's TrueTypeGX/AAT validation module implementation */ +/* (specification). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __GXVMOD_H__ +#define __GXVMOD_H__ + +#include <ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_EXPORT_VAR( const FT_Module_Class ) gxv_module_class; + + +FT_END_HEADER + +#endif /* __GXVMOD_H__ */ + + +/* END */ diff --git a/src/gxvalid/gxvmort.c b/src/gxvalid/gxvmort.c new file mode 100644 index 0000000..465462a --- /dev/null +++ b/src/gxvalid/gxvmort.c @@ -0,0 +1,296 @@ +/***************************************************************************/ +/* */ +/* gxvmort.c */ +/* */ +/* TrueTypeGX/AAT mort table validation (body). */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmort.h" +#include "gxvfeat.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmort + + + static void + gxv_mort_feature_validate( GXV_mort_feature f, + GXV_Validator valid ) + { + if ( f->featureType >= gxv_feat_registry_length ) + { + GXV_TRACE(( "featureType %d is out of registered range, " + "setting %d is unchecked\n", + f->featureType, f->featureSetting )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + else if ( !gxv_feat_registry[f->featureType].existence ) + { + GXV_TRACE(( "featureType %d is within registered area " + "but undefined, setting %d is unchecked\n", + f->featureType, f->featureSetting )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + else + { + FT_Byte nSettings_max; + + + /* nSettings in gxvfeat.c is halved for exclusive on/off settings */ + nSettings_max = gxv_feat_registry[f->featureType].nSettings; + if ( gxv_feat_registry[f->featureType].exclusive ) + nSettings_max = (FT_Byte)( 2 * nSettings_max ); + + GXV_TRACE(( "featureType %d is registered", f->featureType )); + GXV_TRACE(( "setting %d", f->featureSetting )); + + if ( f->featureSetting > nSettings_max ) + { + GXV_TRACE(( "out of defined range %d", nSettings_max )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + GXV_TRACE(( "\n" )); + } + + /* TODO: enableFlags must be unique value in specified chain? */ + } + + + /* + * nFeatureFlags is typed to FT_ULong to accept that in + * mort (typed FT_UShort) and morx (typed FT_ULong). + */ + FT_LOCAL_DEF( void ) + gxv_mort_featurearray_validate( FT_Bytes table, + FT_Bytes limit, + FT_ULong nFeatureFlags, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_ULong i; + + GXV_mort_featureRec f = GXV_MORT_FEATURE_OFF; + + + GXV_NAME_ENTER( "mort feature list" ); + for ( i = 0; i < nFeatureFlags; i++ ) + { + GXV_LIMIT_CHECK( 2 + 2 + 4 + 4 ); + f.featureType = FT_NEXT_USHORT( p ); + f.featureSetting = FT_NEXT_USHORT( p ); + f.enableFlags = FT_NEXT_ULONG( p ); + f.disableFlags = FT_NEXT_ULONG( p ); + + gxv_mort_feature_validate( &f, valid ); + } + + if ( !IS_GXV_MORT_FEATURE_OFF( f ) ) + FT_INVALID_DATA; + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_mort_coverage_validate( FT_UShort coverage, + GXV_Validator valid ) + { + FT_UNUSED( valid ); + + if ( coverage & 0x8000U ) + GXV_TRACE(( " this subtable is for vertical text only\n" )); + else + GXV_TRACE(( " this subtable is for horizontal text only\n" )); + + if ( coverage & 0x4000 ) + GXV_TRACE(( " this subtable is applied to glyph array " + "in descending order\n" )); + else + GXV_TRACE(( " this subtable is applied to glyph array " + "in ascending order\n" )); + + if ( coverage & 0x2000 ) + GXV_TRACE(( " this subtable is forcibly applied to " + "vertical/horizontal text\n" )); + + if ( coverage & 0x1FF8 ) + GXV_TRACE(( " coverage has non-zero bits in reserved area\n" )); + } + + + static void + gxv_mort_subtables_validate( FT_Bytes table, + FT_Bytes limit, + FT_UShort nSubtables, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_Validate_Func fmt_funcs_table[] = + { + gxv_mort_subtable_type0_validate, /* 0 */ + gxv_mort_subtable_type1_validate, /* 1 */ + gxv_mort_subtable_type2_validate, /* 2 */ + NULL, /* 3 */ + gxv_mort_subtable_type4_validate, /* 4 */ + gxv_mort_subtable_type5_validate, /* 5 */ + + }; + + GXV_Validate_Func func; + FT_UShort i; + + + GXV_NAME_ENTER( "subtables in a chain" ); + + for ( i = 0; i < nSubtables; i++ ) + { + FT_UShort length; + FT_UShort coverage; +#ifdef GXV_LOAD_UNUSED_VARS + FT_ULong subFeatureFlags; +#endif + FT_UInt type; + FT_UInt rest; + + + GXV_LIMIT_CHECK( 2 + 2 + 4 ); + length = FT_NEXT_USHORT( p ); + coverage = FT_NEXT_USHORT( p ); +#ifdef GXV_LOAD_UNUSED_VARS + subFeatureFlags = FT_NEXT_ULONG( p ); +#else + p += 4; +#endif + + GXV_TRACE(( "validating chain subtable %d/%d (%d bytes)\n", + i + 1, nSubtables, length )); + type = coverage & 0x0007; + rest = length - ( 2 + 2 + 4 ); + + GXV_LIMIT_CHECK( rest ); + gxv_mort_coverage_validate( coverage, valid ); + + if ( type > 5 ) + FT_INVALID_FORMAT; + + func = fmt_funcs_table[type]; + if ( func == NULL ) + GXV_TRACE(( "morx type %d is reserved\n", type )); + + func( p, p + rest, valid ); + + p += rest; + /* TODO: validate subFeatureFlags */ + } + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + static void + gxv_mort_chain_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; +#ifdef GXV_LOAD_UNUSED_VARS + FT_ULong defaultFlags; +#endif + FT_ULong chainLength; + FT_UShort nFeatureFlags; + FT_UShort nSubtables; + + + GXV_NAME_ENTER( "mort chain header" ); + + GXV_LIMIT_CHECK( 4 + 4 + 2 + 2 ); +#ifdef GXV_LOAD_UNUSED_VARS + defaultFlags = FT_NEXT_ULONG( p ); +#else + p += 4; +#endif + chainLength = FT_NEXT_ULONG( p ); + nFeatureFlags = FT_NEXT_USHORT( p ); + nSubtables = FT_NEXT_USHORT( p ); + + gxv_mort_featurearray_validate( p, table + chainLength, + nFeatureFlags, valid ); + p += valid->subtable_length; + gxv_mort_subtables_validate( p, table + chainLength, nSubtables, valid ); + valid->subtable_length = chainLength; + + /* TODO: validate defaultFlags */ + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_mort_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + FT_Bytes p = table; + FT_Bytes limit = 0; + FT_ULong version; + FT_ULong nChains; + FT_ULong i; + + + valid->root = ftvalid; + valid->face = face; + limit = valid->root->limit; + + FT_TRACE3(( "validating `mort' table\n" )); + GXV_INIT; + + GXV_LIMIT_CHECK( 4 + 4 ); + version = FT_NEXT_ULONG( p ); + nChains = FT_NEXT_ULONG( p ); + + if (version != 0x00010000UL) + FT_INVALID_FORMAT; + + for ( i = 0; i < nChains; i++ ) + { + GXV_TRACE(( "validating chain %d/%d\n", i + 1, nChains )); + GXV_32BIT_ALIGNMENT_VALIDATE( p - table ); + gxv_mort_chain_validate( p, limit, valid ); + p += valid->subtable_length; + } + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/gxvalid/gxvmort.h b/src/gxvalid/gxvmort.h new file mode 100644 index 0000000..1e5a1f5 --- /dev/null +++ b/src/gxvalid/gxvmort.h @@ -0,0 +1,93 @@ +/***************************************************************************/ +/* */ +/* gxvmort.h */ +/* */ +/* TrueTypeGX/AAT common definition for mort table (specification). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __GXVMORT_H__ +#define __GXVMORT_H__ + +#include "gxvalid.h" +#include "gxvcommn.h" + +#include FT_SFNT_NAMES_H + + + typedef struct GXV_mort_featureRec_ + { + FT_UShort featureType; + FT_UShort featureSetting; + FT_ULong enableFlags; + FT_ULong disableFlags; + + } GXV_mort_featureRec, *GXV_mort_feature; + +#define GXV_MORT_FEATURE_OFF {0, 1, 0x00000000UL, 0x00000000UL} + +#define IS_GXV_MORT_FEATURE_OFF( f ) \ + ( (f).featureType == 0 || \ + (f).featureSetting == 1 || \ + (f).enableFlags == 0x00000000UL || \ + (f).disableFlags == 0x00000000UL ) + + + FT_LOCAL( void ) + gxv_mort_featurearray_validate( FT_Bytes table, + FT_Bytes limit, + FT_ULong nFeatureFlags, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_coverage_validate( FT_UShort coverage, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_subtable_type0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_subtable_type1_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_subtable_type2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_subtable_type4_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_mort_subtable_type5_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + +#endif /* __GXVMORT_H__ */ + + +/* END */ diff --git a/src/gxvalid/gxvmort0.c b/src/gxvalid/gxvmort0.c new file mode 100644 index 0000000..b136ced --- /dev/null +++ b/src/gxvalid/gxvmort0.c @@ -0,0 +1,151 @@ +/***************************************************************************/ +/* */ +/* gxvmort0.c */ +/* */ +/* TrueTypeGX/AAT mort table validation */ +/* body for type0 (Indic Script Rearrangement) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmort.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmort + + + static const char* GXV_Mort_IndicScript_Msg[] = + { + "no change", + "Ax => xA", + "xD => Dx", + "AxD => DxA", + "ABx => xAB", + "ABx => xBA", + "xCD => CDx", + "xCD => DCx", + "AxCD => CDxA", + "AxCD => DCxA", + "ABxD => DxAB", + "ABxD => DxBA", + "ABxCD => CDxAB", + "ABxCD => CDxBA", + "ABxCD => DCxAB", + "ABxCD => DCxBA", + + }; + + + static void + gxv_mort_subtable_type0_entry_validate( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_UShort markFirst; + FT_UShort dontAdvance; + FT_UShort markLast; + FT_UShort reserved; + FT_UShort verb = 0; + + FT_UNUSED( state ); + FT_UNUSED( table ); + FT_UNUSED( limit ); + + FT_UNUSED( GXV_Mort_IndicScript_Msg[verb] ); /* for the non-debugging */ + FT_UNUSED( glyphOffset_p ); /* case */ + + + markFirst = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); + markLast = (FT_UShort)( ( flags >> 13 ) & 1 ); + + reserved = (FT_UShort)( flags & 0x1FF0 ); + verb = (FT_UShort)( flags & 0x000F ); + + GXV_TRACE(( " IndicScript MorphRule for glyphOffset 0x%04x", + glyphOffset_p->u )); + GXV_TRACE(( " markFirst=%01d", markFirst )); + GXV_TRACE(( " dontAdvance=%01d", dontAdvance )); + GXV_TRACE(( " markLast=%01d", markLast )); + GXV_TRACE(( " %02d", verb )); + GXV_TRACE(( " %s\n", GXV_Mort_IndicScript_Msg[verb] )); + + if ( markFirst > 0 && markLast > 0 ) + { + GXV_TRACE(( " [odd] a glyph is marked as the first and last" + " in Indic rearrangement\n" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + + if ( markFirst > 0 && dontAdvance > 0 ) + { + GXV_TRACE(( " [odd] the first glyph is marked as dontAdvance" + " in Indic rearrangement\n" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + + if ( 0 < reserved ) + { + GXV_TRACE(( " non-zero bits found in reserved range\n" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + else + GXV_TRACE(( "\n" )); + } + + + FT_LOCAL_DEF( void ) + gxv_mort_subtable_type0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + GXV_NAME_ENTER( + "mort chain subtable type0 (Indic-Script Rearrangement)" ); + + GXV_LIMIT_CHECK( GXV_STATETABLE_HEADER_SIZE ); + + valid->statetable.optdata = NULL; + valid->statetable.optdata_load_func = NULL; + valid->statetable.subtable_setup_func = NULL; + valid->statetable.entry_glyphoffset_fmt = GXV_GLYPHOFFSET_NONE; + valid->statetable.entry_validate_func = + gxv_mort_subtable_type0_entry_validate; + + gxv_StateTable_validate( p, limit, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/src/gxvalid/gxvmort1.c b/src/gxvalid/gxvmort1.c new file mode 100644 index 0000000..1c17a5d --- /dev/null +++ b/src/gxvalid/gxvmort1.c @@ -0,0 +1,259 @@ +/***************************************************************************/ +/* */ +/* gxvmort1.c */ +/* */ +/* TrueTypeGX/AAT mort table validation */ +/* body for type1 (Contextual Substitution) subtable. */ +/* */ +/* Copyright 2005, 2007 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmort.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmort + + + typedef struct GXV_mort_subtable_type1_StateOptRec_ + { + FT_UShort substitutionTable; + FT_UShort substitutionTable_length; + + } GXV_mort_subtable_type1_StateOptRec, + *GXV_mort_subtable_type1_StateOptRecData; + +#define GXV_MORT_SUBTABLE_TYPE1_HEADER_SIZE \ + ( GXV_STATETABLE_HEADER_SIZE + 2 ) + + + static void + gxv_mort_subtable_type1_substitutionTable_load( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_mort_subtable_type1_StateOptRecData optdata = + (GXV_mort_subtable_type1_StateOptRecData)valid->statetable.optdata; + + + GXV_LIMIT_CHECK( 2 ); + optdata->substitutionTable = FT_NEXT_USHORT( p ); + } + + + static void + gxv_mort_subtable_type1_subtable_setup( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort* classTable_length_p, + FT_UShort* stateArray_length_p, + FT_UShort* entryTable_length_p, + GXV_Validator valid ) + { + FT_UShort o[4]; + FT_UShort *l[4]; + FT_UShort buff[5]; + + GXV_mort_subtable_type1_StateOptRecData optdata = + (GXV_mort_subtable_type1_StateOptRecData)valid->statetable.optdata; + + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + o[3] = optdata->substitutionTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + l[3] = &( optdata->substitutionTable_length ); + + gxv_set_length_by_ushort_offset( o, l, buff, 4, table_size, valid ); + } + + + static void + gxv_mort_subtable_type1_offset_to_subst_validate( + FT_Short wordOffset, + const FT_String* tag, + FT_Byte state, + GXV_Validator valid ) + { + FT_UShort substTable; + FT_UShort substTable_limit; + + FT_UNUSED( tag ); + FT_UNUSED( state ); + + + substTable = + ((GXV_mort_subtable_type1_StateOptRec *) + (valid->statetable.optdata))->substitutionTable; + substTable_limit = + (FT_UShort)( substTable + + ((GXV_mort_subtable_type1_StateOptRec *) + (valid->statetable.optdata))->substitutionTable_length ); + + valid->min_gid = (FT_UShort)( ( substTable - wordOffset * 2 ) / 2 ); + valid->max_gid = (FT_UShort)( ( substTable_limit - wordOffset * 2 ) / 2 ); + valid->max_gid = (FT_UShort)( FT_MAX( valid->max_gid, + valid->face->num_glyphs ) ); + + /* XXX: check range? */ + + /* TODO: min_gid & max_gid comparison with ClassTable contents */ + } + + + static void + gxv_mort_subtable_type1_entry_validate( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort setMark; + FT_UShort dontAdvance; +#endif + FT_UShort reserved; + FT_Short markOffset; + FT_Short currentOffset; + + FT_UNUSED( table ); + FT_UNUSED( limit ); + + +#ifdef GXV_LOAD_UNUSED_VARS + setMark = (FT_UShort)( flags >> 15 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); +#endif + reserved = (FT_Short)( flags & 0x3FFF ); + + markOffset = (FT_Short)( glyphOffset_p->ul >> 16 ); + currentOffset = (FT_Short)( glyphOffset_p->ul ); + + if ( 0 < reserved ) + { + GXV_TRACE(( " non-zero bits found in reserved range\n" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + + gxv_mort_subtable_type1_offset_to_subst_validate( markOffset, + "markOffset", + state, + valid ); + + gxv_mort_subtable_type1_offset_to_subst_validate( currentOffset, + "currentOffset", + state, + valid ); + } + + + static void + gxv_mort_subtable_type1_substTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort num_gids = (FT_UShort)( + ((GXV_mort_subtable_type1_StateOptRec *) + (valid->statetable.optdata))->substitutionTable_length / 2 ); + FT_UShort i; + + + GXV_NAME_ENTER( "validating contents of substitutionTable" ); + for ( i = 0; i < num_gids ; i ++ ) + { + FT_UShort dst_gid; + + + GXV_LIMIT_CHECK( 2 ); + dst_gid = FT_NEXT_USHORT( p ); + + if ( dst_gid >= 0xFFFFU ) + continue; + + if ( dst_gid < valid->min_gid || valid->max_gid < dst_gid ) + { + GXV_TRACE(( "substTable include a strange gid[%d]=%d >" + " out of define range (%d..%d)\n", + i, dst_gid, valid->min_gid, valid->max_gid )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + } + + GXV_EXIT; + } + + + /* + * subtable for Contextual glyph substitution is a modified StateTable. + * In addition to classTable, stateArray, and entryTable, the field + * `substitutionTable' is added. + */ + FT_LOCAL_DEF( void ) + gxv_mort_subtable_type1_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_mort_subtable_type1_StateOptRec st_rec; + + + GXV_NAME_ENTER( "mort chain subtable type1 (Contextual Glyph Subst)" ); + + GXV_LIMIT_CHECK( GXV_MORT_SUBTABLE_TYPE1_HEADER_SIZE ); + + valid->statetable.optdata = + &st_rec; + valid->statetable.optdata_load_func = + gxv_mort_subtable_type1_substitutionTable_load; + valid->statetable.subtable_setup_func = + gxv_mort_subtable_type1_subtable_setup; + valid->statetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_ULONG; + valid->statetable.entry_validate_func = + + gxv_mort_subtable_type1_entry_validate; + gxv_StateTable_validate( p, limit, valid ); + + gxv_mort_subtable_type1_substTable_validate( + table + st_rec.substitutionTable, + table + st_rec.substitutionTable + st_rec.substitutionTable_length, + valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/src/gxvalid/gxvmort2.c b/src/gxvalid/gxvmort2.c new file mode 100644 index 0000000..9e08fb7 --- /dev/null +++ b/src/gxvalid/gxvmort2.c @@ -0,0 +1,311 @@ +/***************************************************************************/ +/* */ +/* gxvmort2.c */ +/* */ +/* TrueTypeGX/AAT mort table validation */ +/* body for type2 (Ligature Substitution) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmort.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmort + + + typedef struct GXV_mort_subtable_type2_StateOptRec_ + { + FT_UShort ligActionTable; + FT_UShort componentTable; + FT_UShort ligatureTable; + FT_UShort ligActionTable_length; + FT_UShort componentTable_length; + FT_UShort ligatureTable_length; + + } GXV_mort_subtable_type2_StateOptRec, + *GXV_mort_subtable_type2_StateOptRecData; + +#define GXV_MORT_SUBTABLE_TYPE2_HEADER_SIZE \ + ( GXV_STATETABLE_HEADER_SIZE + 2 + 2 + 2 ) + + + static void + gxv_mort_subtable_type2_opttable_load( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + GXV_mort_subtable_type2_StateOptRecData optdata = + (GXV_mort_subtable_type2_StateOptRecData)valid->statetable.optdata; + + + GXV_LIMIT_CHECK( 2 + 2 + 2 ); + optdata->ligActionTable = FT_NEXT_USHORT( p ); + optdata->componentTable = FT_NEXT_USHORT( p ); + optdata->ligatureTable = FT_NEXT_USHORT( p ); + + GXV_TRACE(( "offset to ligActionTable=0x%04x\n", + optdata->ligActionTable )); + GXV_TRACE(( "offset to componentTable=0x%04x\n", + optdata->componentTable )); + GXV_TRACE(( "offset to ligatureTable=0x%04x\n", + optdata->ligatureTable )); + } + + + static void + gxv_mort_subtable_type2_subtable_setup( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort *classTable_length_p, + FT_UShort *stateArray_length_p, + FT_UShort *entryTable_length_p, + GXV_Validator valid ) + { + FT_UShort o[6]; + FT_UShort *l[6]; + FT_UShort buff[7]; + + GXV_mort_subtable_type2_StateOptRecData optdata = + (GXV_mort_subtable_type2_StateOptRecData)valid->statetable.optdata; + + + GXV_NAME_ENTER( "subtable boundaries setup" ); + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + o[3] = optdata->ligActionTable; + o[4] = optdata->componentTable; + o[5] = optdata->ligatureTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + l[3] = &(optdata->ligActionTable_length); + l[4] = &(optdata->componentTable_length); + l[5] = &(optdata->ligatureTable_length); + + gxv_set_length_by_ushort_offset( o, l, buff, 6, table_size, valid ); + + GXV_TRACE(( "classTable: offset=0x%04x length=0x%04x\n", + classTable, *classTable_length_p )); + GXV_TRACE(( "stateArray: offset=0x%04x length=0x%04x\n", + stateArray, *stateArray_length_p )); + GXV_TRACE(( "entryTable: offset=0x%04x length=0x%04x\n", + entryTable, *entryTable_length_p )); + GXV_TRACE(( "ligActionTable: offset=0x%04x length=0x%04x\n", + optdata->ligActionTable, + optdata->ligActionTable_length )); + GXV_TRACE(( "componentTable: offset=0x%04x length=0x%04x\n", + optdata->componentTable, + optdata->componentTable_length )); + GXV_TRACE(( "ligatureTable: offset=0x%04x length=0x%04x\n", + optdata->ligatureTable, + optdata->ligatureTable_length )); + + GXV_EXIT; + } + + + static void + gxv_mort_subtable_type2_ligActionOffset_validate( + FT_Bytes table, + FT_UShort ligActionOffset, + GXV_Validator valid ) + { + /* access ligActionTable */ + GXV_mort_subtable_type2_StateOptRecData optdata = + (GXV_mort_subtable_type2_StateOptRecData)valid->statetable.optdata; + + FT_Bytes lat_base = table + optdata->ligActionTable; + FT_Bytes p = table + ligActionOffset; + FT_Bytes lat_limit = lat_base + optdata->ligActionTable; + + + GXV_32BIT_ALIGNMENT_VALIDATE( ligActionOffset ); + if ( p < lat_base ) + { + GXV_TRACE(( "too short offset 0x%04x: p < lat_base (%d byte rewind)\n", + ligActionOffset, lat_base - p )); + + /* FontValidator, ftxvalidator, ftxdumperfuser warn but continue */ + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + else if ( lat_limit < p ) + { + GXV_TRACE(( "too large offset 0x%04x: lat_limit < p (%d byte overrun)\n", + ligActionOffset, p - lat_limit )); + + /* FontValidator, ftxvalidator, ftxdumperfuser warn but continue */ + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + else + { + /* validate entry in ligActionTable */ + FT_ULong lig_action; +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort last; + FT_UShort store; +#endif + FT_ULong offset; + + + lig_action = FT_NEXT_ULONG( p ); +#ifdef GXV_LOAD_UNUSED_VARS + last = (FT_UShort)( ( lig_action >> 31 ) & 1 ); + store = (FT_UShort)( ( lig_action >> 30 ) & 1 ); +#endif + + /* Apple spec defines this offset as a word offset */ + offset = lig_action & 0x3FFFFFFFUL; + if ( offset * 2 < optdata->ligatureTable ) + { + GXV_TRACE(( "too short offset 0x%08x:" + " 2 x offset < ligatureTable (%d byte rewind)\n", + offset, optdata->ligatureTable - offset * 2 )); + + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } else if ( offset * 2 > + optdata->ligatureTable + optdata->ligatureTable_length ) + { + GXV_TRACE(( "too long offset 0x%08x:" + " 2 x offset > ligatureTable + ligatureTable_length" + " (%d byte overrun)\n", + offset, + optdata->ligatureTable + optdata->ligatureTable_length + - offset * 2 )); + + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + } + } + + + static void + gxv_mort_subtable_type2_entry_validate( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort setComponent; + FT_UShort dontAdvance; +#endif + FT_UShort offset; + + FT_UNUSED( state ); + FT_UNUSED( glyphOffset_p ); + FT_UNUSED( limit ); + + +#ifdef GXV_LOAD_UNUSED_VARS + setComponent = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); +#endif + + offset = (FT_UShort)( flags & 0x3FFFU ); + + if ( 0 < offset ) + gxv_mort_subtable_type2_ligActionOffset_validate( table, offset, + valid ); + } + + + static void + gxv_mort_subtable_type2_ligatureTable_validate( FT_Bytes table, + GXV_Validator valid ) + { + GXV_mort_subtable_type2_StateOptRecData optdata = + (GXV_mort_subtable_type2_StateOptRecData)valid->statetable.optdata; + + FT_Bytes p = table + optdata->ligatureTable; + FT_Bytes limit = table + optdata->ligatureTable + + optdata->ligatureTable_length; + + + GXV_NAME_ENTER( "mort chain subtable type2 - substitutionTable" ); + if ( 0 != optdata->ligatureTable ) + { + /* Apple does not give specification of ligatureTable format */ + while ( p < limit ) + { + FT_UShort lig_gid; + + + GXV_LIMIT_CHECK( 2 ); + lig_gid = FT_NEXT_USHORT( p ); + + if ( valid->face->num_glyphs < lig_gid ) + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + } + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_mort_subtable_type2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_mort_subtable_type2_StateOptRec lig_rec; + + + GXV_NAME_ENTER( "mort chain subtable type2 (Ligature Substitution)" ); + + GXV_LIMIT_CHECK( GXV_MORT_SUBTABLE_TYPE2_HEADER_SIZE ); + + valid->statetable.optdata = + &lig_rec; + valid->statetable.optdata_load_func = + gxv_mort_subtable_type2_opttable_load; + valid->statetable.subtable_setup_func = + gxv_mort_subtable_type2_subtable_setup; + valid->statetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_NONE; + valid->statetable.entry_validate_func = + gxv_mort_subtable_type2_entry_validate; + + gxv_StateTable_validate( p, limit, valid ); + + p += valid->subtable_length; + gxv_mort_subtable_type2_ligatureTable_validate( table, valid ); + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + +/* END */ diff --git a/src/gxvalid/gxvmort4.c b/src/gxvalid/gxvmort4.c new file mode 100644 index 0000000..8347098 --- /dev/null +++ b/src/gxvalid/gxvmort4.c @@ -0,0 +1,125 @@ +/***************************************************************************/ +/* */ +/* gxvmort4.c */ +/* */ +/* TrueTypeGX/AAT mort table validation */ +/* body for type4 (Non-Contextual Glyph Substitution) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmort.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmort + + + static void + gxv_mort_subtable_type4_lookupval_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_UNUSED( glyph ); + + gxv_glyphid_validate( value_p->u, valid ); + } + + /* + +===============+ --------+ + | lookup header | | + +===============+ | + | BinSrchHeader | | + +===============+ | + | lastGlyph[0] | | + +---------------+ | + | firstGlyph[0] | | head of lookup table + +---------------+ | + + | offset[0] | -> | offset [byte] + +===============+ | + + | lastGlyph[1] | | (glyphID - firstGlyph) * 2 [byte] + +---------------+ | + | firstGlyph[1] | | + +---------------+ | + | offset[1] | | + +===============+ | + | + .... | + | + 16bit value array | + +===============+ | + | value | <-------+ + .... + */ + + static GXV_LookupValueDesc + gxv_mort_subtable_type4_lookupfmt4_transit( + FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + FT_Bytes p; + FT_Bytes limit; + FT_UShort offset; + GXV_LookupValueDesc value; + + /* XXX: check range? */ + offset = (FT_UShort)( base_value_p->u + + relative_gindex * sizeof ( FT_UShort ) ); + + p = valid->lookuptbl_head + offset; + limit = lookuptbl_limit; + + GXV_LIMIT_CHECK( 2 ); + value.u = FT_NEXT_USHORT( p ); + + return value; + } + + + FT_LOCAL_DEF( void ) + gxv_mort_subtable_type4_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + GXV_NAME_ENTER( "mort chain subtable type4 " + "(Non-Contextual Glyph Substitution)" ); + + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_mort_subtable_type4_lookupval_validate; + valid->lookupfmt4_trans = gxv_mort_subtable_type4_lookupfmt4_transit; + + gxv_LookupTable_validate( p, limit, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/src/gxvalid/gxvmort5.c b/src/gxvalid/gxvmort5.c new file mode 100644 index 0000000..32cfb03 --- /dev/null +++ b/src/gxvalid/gxvmort5.c @@ -0,0 +1,233 @@ +/***************************************************************************/ +/* */ +/* gxvmort5.c */ +/* */ +/* TrueTypeGX/AAT mort table validation */ +/* body for type5 (Contextual Glyph Insertion) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmort.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmort + + + /* + * mort subtable type5 (Contextual Glyph Insertion) + * has the format of StateTable with insertion-glyph-list, + * but without name. The offset is given by glyphOffset in + * entryTable. There is no table location declaration + * like xxxTable. + */ + + typedef struct GXV_mort_subtable_type5_StateOptRec_ + { + FT_UShort classTable; + FT_UShort stateArray; + FT_UShort entryTable; + +#define GXV_MORT_SUBTABLE_TYPE5_HEADER_SIZE GXV_STATETABLE_HEADER_SIZE + + FT_UShort* classTable_length_p; + FT_UShort* stateArray_length_p; + FT_UShort* entryTable_length_p; + + } GXV_mort_subtable_type5_StateOptRec, + *GXV_mort_subtable_type5_StateOptRecData; + + + FT_LOCAL_DEF( void ) + gxv_mort_subtable_type5_subtable_setup( FT_UShort table_size, + FT_UShort classTable, + FT_UShort stateArray, + FT_UShort entryTable, + FT_UShort* classTable_length_p, + FT_UShort* stateArray_length_p, + FT_UShort* entryTable_length_p, + GXV_Validator valid ) + { + GXV_mort_subtable_type5_StateOptRecData optdata = + (GXV_mort_subtable_type5_StateOptRecData)valid->statetable.optdata; + + + gxv_StateTable_subtable_setup( table_size, + classTable, + stateArray, + entryTable, + classTable_length_p, + stateArray_length_p, + entryTable_length_p, + valid ); + + optdata->classTable = classTable; + optdata->stateArray = stateArray; + optdata->entryTable = entryTable; + + optdata->classTable_length_p = classTable_length_p; + optdata->stateArray_length_p = stateArray_length_p; + optdata->entryTable_length_p = entryTable_length_p; + } + + + static void + gxv_mort_subtable_type5_InsertList_validate( FT_UShort offset, + FT_UShort count, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + /* + * We don't know the range of insertion-glyph-list. + * Set range by whole of state table. + */ + FT_Bytes p = table + offset; + + GXV_mort_subtable_type5_StateOptRecData optdata = + (GXV_mort_subtable_type5_StateOptRecData)valid->statetable.optdata; + + if ( optdata->classTable < offset && + offset < optdata->classTable + *(optdata->classTable_length_p) ) + GXV_TRACE(( " offset runs into ClassTable" )); + if ( optdata->stateArray < offset && + offset < optdata->stateArray + *(optdata->stateArray_length_p) ) + GXV_TRACE(( " offset runs into StateArray" )); + if ( optdata->entryTable < offset && + offset < optdata->entryTable + *(optdata->entryTable_length_p) ) + GXV_TRACE(( " offset runs into EntryTable" )); + +#ifndef GXV_LOAD_TRACE_VARS + GXV_LIMIT_CHECK( count * 2 ); +#else + while ( p < table + offset + ( count * 2 ) ) + { + FT_UShort insert_glyphID; + + + GXV_LIMIT_CHECK( 2 ); + insert_glyphID = FT_NEXT_USHORT( p ); + GXV_TRACE(( " 0x%04x", insert_glyphID )); + } + GXV_TRACE(( "\n" )); +#endif + } + + + static void + gxv_mort_subtable_type5_entry_validate( + FT_Byte state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_Bool setMark; + FT_Bool dontAdvance; + FT_Bool currentIsKashidaLike; + FT_Bool markedIsKashidaLike; + FT_Bool currentInsertBefore; + FT_Bool markedInsertBefore; +#endif + FT_Byte currentInsertCount; + FT_Byte markedInsertCount; + FT_UShort currentInsertList; + FT_UShort markedInsertList; + + FT_UNUSED( state ); + + +#ifdef GXV_LOAD_UNUSED_VARS + setMark = FT_BOOL( ( flags >> 15 ) & 1 ); + dontAdvance = FT_BOOL( ( flags >> 14 ) & 1 ); + currentIsKashidaLike = FT_BOOL( ( flags >> 13 ) & 1 ); + markedIsKashidaLike = FT_BOOL( ( flags >> 12 ) & 1 ); + currentInsertBefore = FT_BOOL( ( flags >> 11 ) & 1 ); + markedInsertBefore = FT_BOOL( ( flags >> 10 ) & 1 ); +#endif + + currentInsertCount = (FT_Byte)( ( flags >> 5 ) & 0x1F ); + markedInsertCount = (FT_Byte)( flags & 0x001F ); + + currentInsertList = (FT_UShort)( glyphOffset->ul >> 16 ); + markedInsertList = (FT_UShort)( glyphOffset->ul ); + + if ( 0 != currentInsertList && 0 != currentInsertCount ) + { + gxv_mort_subtable_type5_InsertList_validate( currentInsertList, + currentInsertCount, + table, + limit, + valid ); + } + + if ( 0 != markedInsertList && 0 != markedInsertCount ) + { + gxv_mort_subtable_type5_InsertList_validate( markedInsertList, + markedInsertCount, + table, + limit, + valid ); + } + } + + + FT_LOCAL_DEF( void ) + gxv_mort_subtable_type5_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_mort_subtable_type5_StateOptRec et_rec; + GXV_mort_subtable_type5_StateOptRecData et = &et_rec; + + + GXV_NAME_ENTER( "mort chain subtable type5 (Glyph Insertion)" ); + + GXV_LIMIT_CHECK( GXV_MORT_SUBTABLE_TYPE5_HEADER_SIZE ); + + valid->statetable.optdata = + et; + valid->statetable.optdata_load_func = + NULL; + valid->statetable.subtable_setup_func = + gxv_mort_subtable_type5_subtable_setup; + valid->statetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_ULONG; + valid->statetable.entry_validate_func = + gxv_mort_subtable_type5_entry_validate; + + gxv_StateTable_validate( p, limit, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/src/gxvalid/gxvmorx.c b/src/gxvalid/gxvmorx.c new file mode 100644 index 0000000..4b1dd00 --- /dev/null +++ b/src/gxvalid/gxvmorx.c @@ -0,0 +1,199 @@ +/***************************************************************************/ +/* */ +/* gxvmorx.c */ +/* */ +/* TrueTypeGX/AAT morx table validation (body). */ +/* */ +/* Copyright 2005, 2008 by */ +/* suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmorx.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmorx + + + static void + gxv_morx_subtables_validate( FT_Bytes table, + FT_Bytes limit, + FT_UShort nSubtables, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_Validate_Func fmt_funcs_table[] = + { + gxv_morx_subtable_type0_validate, /* 0 */ + gxv_morx_subtable_type1_validate, /* 1 */ + gxv_morx_subtable_type2_validate, /* 2 */ + NULL, /* 3 */ + gxv_morx_subtable_type4_validate, /* 4 */ + gxv_morx_subtable_type5_validate, /* 5 */ + + }; + + GXV_Validate_Func func; + + FT_UShort i; + + + GXV_NAME_ENTER( "subtables in a chain" ); + + for ( i = 0; i < nSubtables; i++ ) + { + FT_ULong length; + FT_ULong coverage; +#ifdef GXV_LOAD_UNUSED_VARS + FT_ULong subFeatureFlags; +#endif + FT_ULong type; + FT_ULong rest; + + + GXV_LIMIT_CHECK( 4 + 4 + 4 ); + length = FT_NEXT_ULONG( p ); + coverage = FT_NEXT_ULONG( p ); +#ifdef GXV_LOAD_UNUSED_VARS + subFeatureFlags = FT_NEXT_ULONG( p ); +#else + p += 4; +#endif + + GXV_TRACE(( "validating chain subtable %d/%d (%d bytes)\n", + i + 1, nSubtables, length )); + + type = coverage & 0x0007; + rest = length - ( 4 + 4 + 4 ); + GXV_LIMIT_CHECK( rest ); + + /* morx coverage consists of mort_coverage & 16bit padding */ + gxv_mort_coverage_validate( (FT_UShort)( ( coverage >> 16 ) | coverage ), + valid ); + if ( type > 5 ) + FT_INVALID_FORMAT; + + func = fmt_funcs_table[type]; + if ( func == NULL ) + GXV_TRACE(( "morx type %d is reserved\n", type )); + + func( p, p + rest, valid ); + + /* TODO: subFeatureFlags should be unique in a table? */ + p += rest; + } + + valid->subtable_length = p - table; + + GXV_EXIT; + } + + + static void + gxv_morx_chain_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; +#ifdef GXV_LOAD_UNUSED_VARS + FT_ULong defaultFlags; +#endif + FT_ULong chainLength; + FT_ULong nFeatureFlags; + FT_ULong nSubtables; + + + GXV_NAME_ENTER( "morx chain header" ); + + GXV_LIMIT_CHECK( 4 + 4 + 4 + 4 ); +#ifdef GXV_LOAD_UNUSED_VARS + defaultFlags = FT_NEXT_ULONG( p ); +#else + p += 4; +#endif + chainLength = FT_NEXT_ULONG( p ); + nFeatureFlags = FT_NEXT_ULONG( p ); + nSubtables = FT_NEXT_ULONG( p ); + + /* feature-array of morx is same with that of mort */ + gxv_mort_featurearray_validate( p, limit, nFeatureFlags, valid ); + p += valid->subtable_length; + + if ( nSubtables >= 0x10000L ) + FT_INVALID_DATA; + + gxv_morx_subtables_validate( p, table + chainLength, + (FT_UShort)nSubtables, valid ); + + valid->subtable_length = chainLength; + + /* TODO: defaultFlags should be compared with the flags in tables */ + + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_morx_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + FT_Bytes p = table; + FT_Bytes limit = 0; + FT_ULong version; + FT_ULong nChains; + FT_ULong i; + + + valid->root = ftvalid; + valid->face = face; + + FT_TRACE3(( "validating `morx' table\n" )); + GXV_INIT; + + GXV_LIMIT_CHECK( 4 + 4 ); + version = FT_NEXT_ULONG( p ); + nChains = FT_NEXT_ULONG( p ); + + if ( version != 0x00020000UL ) + FT_INVALID_FORMAT; + + for ( i = 0; i < nChains; i++ ) + { + GXV_TRACE(( "validating chain %d/%d\n", i + 1, nChains )); + GXV_32BIT_ALIGNMENT_VALIDATE( p - table ); + gxv_morx_chain_validate( p, limit, valid ); + p += valid->subtable_length; + } + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/gxvalid/gxvmorx.h b/src/gxvalid/gxvmorx.h new file mode 100644 index 0000000..28c1a44 --- /dev/null +++ b/src/gxvalid/gxvmorx.h @@ -0,0 +1,67 @@ +/***************************************************************************/ +/* */ +/* gxvmorx.h */ +/* */ +/* TrueTypeGX/AAT common definition for morx table (specification). */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#ifndef __GXVMORX_H__ +#define __GXVMORX_H__ + + +#include "gxvalid.h" +#include "gxvcommn.h" +#include "gxvmort.h" + +#include FT_SFNT_NAMES_H + + + FT_LOCAL( void ) + gxv_morx_subtable_type0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_morx_subtable_type1_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_morx_subtable_type2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_morx_subtable_type4_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + FT_LOCAL( void ) + gxv_morx_subtable_type5_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ); + + +#endif /* __GXVMORX_H__ */ + + +/* END */ diff --git a/src/gxvalid/gxvmorx0.c b/src/gxvalid/gxvmorx0.c new file mode 100644 index 0000000..6a736c1 --- /dev/null +++ b/src/gxvalid/gxvmorx0.c @@ -0,0 +1,111 @@ +/***************************************************************************/ +/* */ +/* gxvmorx0.c */ +/* */ +/* TrueTypeGX/AAT morx table validation */ +/* body for type0 (Indic Script Rearrangement) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmorx.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmorx + + + static void + gxv_morx_subtable_type0_entry_validate( + FT_UShort state, + FT_UShort flags, + GXV_XStateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort markFirst; + FT_UShort dontAdvance; + FT_UShort markLast; +#endif + FT_UShort reserved; +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort verb; +#endif + + FT_UNUSED( state ); + FT_UNUSED( glyphOffset_p ); + FT_UNUSED( table ); + FT_UNUSED( limit ); + + +#ifdef GXV_LOAD_UNUSED_VARS + markFirst = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); + markLast = (FT_UShort)( ( flags >> 13 ) & 1 ); +#endif + + reserved = (FT_UShort)( flags & 0x1FF0 ); +#ifdef GXV_LOAD_UNUSED_VARS + verb = (FT_UShort)( flags & 0x000F ); +#endif + + if ( 0 < reserved ) + { + GXV_TRACE(( " non-zero bits found in reserved range\n" )); + FT_INVALID_DATA; + } + } + + + FT_LOCAL_DEF( void ) + gxv_morx_subtable_type0_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + + GXV_NAME_ENTER( + "morx chain subtable type0 (Indic-Script Rearrangement)" ); + + GXV_LIMIT_CHECK( GXV_STATETABLE_HEADER_SIZE ); + + valid->xstatetable.optdata = NULL; + valid->xstatetable.optdata_load_func = NULL; + valid->xstatetable.subtable_setup_func = NULL; + valid->xstatetable.entry_glyphoffset_fmt = GXV_GLYPHOFFSET_NONE; + valid->xstatetable.entry_validate_func = + gxv_morx_subtable_type0_entry_validate; + + gxv_XStateTable_validate( p, limit, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/src/gxvalid/gxvmorx1.c b/src/gxvalid/gxvmorx1.c new file mode 100644 index 0000000..ce0009a --- /dev/null +++ b/src/gxvalid/gxvmorx1.c @@ -0,0 +1,277 @@ +/***************************************************************************/ +/* */ +/* gxvmorx1.c */ +/* */ +/* TrueTypeGX/AAT morx table validation */ +/* body for type1 (Contextual Substitution) subtable. */ +/* */ +/* Copyright 2005, 2007 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmorx.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmorx + + + typedef struct GXV_morx_subtable_type1_StateOptRec_ + { + FT_ULong substitutionTable; + FT_ULong substitutionTable_length; + FT_UShort substitutionTable_num_lookupTables; + + } GXV_morx_subtable_type1_StateOptRec, + *GXV_morx_subtable_type1_StateOptRecData; + + +#define GXV_MORX_SUBTABLE_TYPE1_HEADER_SIZE \ + ( GXV_STATETABLE_HEADER_SIZE + 2 ) + + + static void + gxv_morx_subtable_type1_substitutionTable_load( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_morx_subtable_type1_StateOptRecData optdata = + (GXV_morx_subtable_type1_StateOptRecData)valid->xstatetable.optdata; + + + GXV_LIMIT_CHECK( 2 ); + optdata->substitutionTable = FT_NEXT_USHORT( p ); + } + + + static void + gxv_morx_subtable_type1_subtable_setup( FT_ULong table_size, + FT_ULong classTable, + FT_ULong stateArray, + FT_ULong entryTable, + FT_ULong* classTable_length_p, + FT_ULong* stateArray_length_p, + FT_ULong* entryTable_length_p, + GXV_Validator valid ) + { + FT_ULong o[4]; + FT_ULong *l[4]; + FT_ULong buff[5]; + + GXV_morx_subtable_type1_StateOptRecData optdata = + (GXV_morx_subtable_type1_StateOptRecData)valid->xstatetable.optdata; + + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + o[3] = optdata->substitutionTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + l[3] = &(optdata->substitutionTable_length); + + gxv_set_length_by_ulong_offset( o, l, buff, 4, table_size, valid ); + } + + + static void + gxv_morx_subtable_type1_entry_validate( + FT_UShort state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_TRACE_VARS + FT_UShort setMark; + FT_UShort dontAdvance; +#endif + FT_UShort reserved; + FT_Short markIndex; + FT_Short currentIndex; + + GXV_morx_subtable_type1_StateOptRecData optdata = + (GXV_morx_subtable_type1_StateOptRecData)valid->xstatetable.optdata; + + FT_UNUSED( state ); + FT_UNUSED( table ); + FT_UNUSED( limit ); + + +#ifdef GXV_LOAD_TRACE_VARS + setMark = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); +#endif + + reserved = (FT_UShort)( flags & 0x3FFF ); + + markIndex = (FT_Short)( glyphOffset_p->ul >> 16 ); + currentIndex = (FT_Short)( glyphOffset_p->ul ); + + GXV_TRACE(( " setMark=%01d dontAdvance=%01d\n", + setMark, dontAdvance )); + + if ( 0 < reserved ) + { + GXV_TRACE(( " non-zero bits found in reserved range\n" )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA ); + } + + GXV_TRACE(( "markIndex = %d, currentIndex = %d\n", + markIndex, currentIndex )); + + if ( optdata->substitutionTable_num_lookupTables < markIndex + 1 ) + optdata->substitutionTable_num_lookupTables = + (FT_Short)( markIndex + 1 ); + + if ( optdata->substitutionTable_num_lookupTables < currentIndex + 1 ) + optdata->substitutionTable_num_lookupTables = + (FT_Short)( currentIndex + 1 ); + } + + + static void + gxv_morx_subtable_type1_LookupValue_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + FT_UNUSED( glyph ); /* for the non-debugging case */ + + GXV_TRACE(( "morx subtable type1 subst.: %d -> %d\n", glyph, value_p->u )); + + if ( value_p->u > valid->face->num_glyphs ) + FT_INVALID_GLYPH_ID; + } + + + static GXV_LookupValueDesc + gxv_morx_subtable_type1_LookupFmt4_transit( + FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + FT_Bytes p; + FT_Bytes limit; + FT_UShort offset; + GXV_LookupValueDesc value; + + /* XXX: check range? */ + offset = (FT_UShort)( base_value_p->u + + relative_gindex * sizeof ( FT_UShort ) ); + + p = valid->lookuptbl_head + offset; + limit = lookuptbl_limit; + + GXV_LIMIT_CHECK ( 2 ); + value.u = FT_NEXT_USHORT( p ); + + return value; + } + + + /* + * TODO: length should be limit? + **/ + static void + gxv_morx_subtable_type1_substitutionTable_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort i; + + GXV_morx_subtable_type1_StateOptRecData optdata = + (GXV_morx_subtable_type1_StateOptRecData)valid->xstatetable.optdata; + + + /* TODO: calculate offset/length for each lookupTables */ + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_morx_subtable_type1_LookupValue_validate; + valid->lookupfmt4_trans = gxv_morx_subtable_type1_LookupFmt4_transit; + + for ( i = 0; i < optdata->substitutionTable_num_lookupTables; i++ ) + { + FT_ULong offset; + + + GXV_LIMIT_CHECK( 4 ); + offset = FT_NEXT_ULONG( p ); + + gxv_LookupTable_validate( table + offset, limit, valid ); + } + + /* TODO: overlapping of lookupTables in substitutionTable */ + } + + + /* + * subtable for Contextual glyph substitution is a modified StateTable. + * In addition to classTable, stateArray, entryTable, the field + * `substitutionTable' is added. + */ + FT_LOCAL_DEF( void ) + gxv_morx_subtable_type1_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_morx_subtable_type1_StateOptRec st_rec; + + + GXV_NAME_ENTER( "morx chain subtable type1 (Contextual Glyph Subst)" ); + + GXV_LIMIT_CHECK( GXV_MORX_SUBTABLE_TYPE1_HEADER_SIZE ); + + st_rec.substitutionTable_num_lookupTables = 0; + + valid->xstatetable.optdata = + &st_rec; + valid->xstatetable.optdata_load_func = + gxv_morx_subtable_type1_substitutionTable_load; + valid->xstatetable.subtable_setup_func = + gxv_morx_subtable_type1_subtable_setup; + valid->xstatetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_ULONG; + valid->xstatetable.entry_validate_func = + gxv_morx_subtable_type1_entry_validate; + + gxv_XStateTable_validate( p, limit, valid ); + + gxv_morx_subtable_type1_substitutionTable_validate( + table + st_rec.substitutionTable, + table + st_rec.substitutionTable + st_rec.substitutionTable_length, + valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/src/gxvalid/gxvmorx2.c b/src/gxvalid/gxvmorx2.c new file mode 100644 index 0000000..9d2b0bc --- /dev/null +++ b/src/gxvalid/gxvmorx2.c @@ -0,0 +1,327 @@ +/***************************************************************************/ +/* */ +/* gxvmorx2.c */ +/* */ +/* TrueTypeGX/AAT morx table validation */ +/* body for type2 (Ligature Substitution) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmorx.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmorx + + + typedef struct GXV_morx_subtable_type2_StateOptRec_ + { + FT_ULong ligActionTable; + FT_ULong componentTable; + FT_ULong ligatureTable; + FT_ULong ligActionTable_length; + FT_ULong componentTable_length; + FT_ULong ligatureTable_length; + + } GXV_morx_subtable_type2_StateOptRec, + *GXV_morx_subtable_type2_StateOptRecData; + + +#define GXV_MORX_SUBTABLE_TYPE2_HEADER_SIZE \ + ( GXV_XSTATETABLE_HEADER_SIZE + 4 + 4 + 4 ) + + + static void + gxv_morx_subtable_type2_opttable_load( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_morx_subtable_type2_StateOptRecData optdata = + (GXV_morx_subtable_type2_StateOptRecData)valid->xstatetable.optdata; + + + GXV_LIMIT_CHECK( 4 + 4 + 4 ); + optdata->ligActionTable = FT_NEXT_ULONG( p ); + optdata->componentTable = FT_NEXT_ULONG( p ); + optdata->ligatureTable = FT_NEXT_ULONG( p ); + + GXV_TRACE(( "offset to ligActionTable=0x%08x\n", + optdata->ligActionTable )); + GXV_TRACE(( "offset to componentTable=0x%08x\n", + optdata->componentTable )); + GXV_TRACE(( "offset to ligatureTable=0x%08x\n", + optdata->ligatureTable )); + } + + + static void + gxv_morx_subtable_type2_subtable_setup( FT_ULong table_size, + FT_ULong classTable, + FT_ULong stateArray, + FT_ULong entryTable, + FT_ULong* classTable_length_p, + FT_ULong* stateArray_length_p, + FT_ULong* entryTable_length_p, + GXV_Validator valid ) + { + FT_ULong o[6]; + FT_ULong* l[6]; + FT_ULong buff[7]; + + GXV_morx_subtable_type2_StateOptRecData optdata = + (GXV_morx_subtable_type2_StateOptRecData)valid->xstatetable.optdata; + + + GXV_NAME_ENTER( "subtable boundaries setup" ); + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + o[3] = optdata->ligActionTable; + o[4] = optdata->componentTable; + o[5] = optdata->ligatureTable; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + l[3] = &(optdata->ligActionTable_length); + l[4] = &(optdata->componentTable_length); + l[5] = &(optdata->ligatureTable_length); + + gxv_set_length_by_ulong_offset( o, l, buff, 6, table_size, valid ); + + GXV_TRACE(( "classTable: offset=0x%08x length=0x%08x\n", + classTable, *classTable_length_p )); + GXV_TRACE(( "stateArray: offset=0x%08x length=0x%08x\n", + stateArray, *stateArray_length_p )); + GXV_TRACE(( "entryTable: offset=0x%08x length=0x%08x\n", + entryTable, *entryTable_length_p )); + GXV_TRACE(( "ligActionTable: offset=0x%08x length=0x%08x\n", + optdata->ligActionTable, + optdata->ligActionTable_length )); + GXV_TRACE(( "componentTable: offset=0x%08x length=0x%08x\n", + optdata->componentTable, + optdata->componentTable_length )); + GXV_TRACE(( "ligatureTable: offset=0x%08x length=0x%08x\n", + optdata->ligatureTable, + optdata->ligatureTable_length )); + + GXV_EXIT; + } + + +#define GXV_MORX_LIGACTION_ENTRY_SIZE 4 + + + static void + gxv_morx_subtable_type2_ligActionIndex_validate( + FT_Bytes table, + FT_UShort ligActionIndex, + GXV_Validator valid ) + { + /* access ligActionTable */ + GXV_morx_subtable_type2_StateOptRecData optdata = + (GXV_morx_subtable_type2_StateOptRecData)valid->xstatetable.optdata; + + FT_Bytes lat_base = table + optdata->ligActionTable; + FT_Bytes p = lat_base + + ligActionIndex * GXV_MORX_LIGACTION_ENTRY_SIZE; + FT_Bytes lat_limit = lat_base + optdata->ligActionTable; + + + if ( p < lat_base ) + { + GXV_TRACE(( "p < lat_base (%d byte rewind)\n", lat_base - p )); + FT_INVALID_OFFSET; + } + else if ( lat_limit < p ) + { + GXV_TRACE(( "lat_limit < p (%d byte overrun)\n", p - lat_limit )); + FT_INVALID_OFFSET; + } + + { + /* validate entry in ligActionTable */ + FT_ULong lig_action; +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort last; + FT_UShort store; +#endif + FT_ULong offset; + FT_Long gid_limit; + + + lig_action = FT_NEXT_ULONG( p ); +#ifdef GXV_LOAD_UNUSED_VARS + last = (FT_UShort)( ( lig_action >> 31 ) & 1 ); + store = (FT_UShort)( ( lig_action >> 30 ) & 1 ); +#endif + + offset = lig_action & 0x3FFFFFFFUL; + + /* this offset is 30-bit signed value to add to GID */ + /* it is different from the location offset in mort */ + if ( ( offset & 0x3FFF0000UL ) == 0x3FFF0000UL ) + { /* negative offset */ + gid_limit = valid->face->num_glyphs - ( offset & 0x0000FFFFUL ); + if ( gid_limit > 0 ) + return; + + GXV_TRACE(( "ligature action table includes" + " too negative offset moving all GID" + " below defined range: 0x%04x\n", + offset & 0xFFFFU )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + else if ( ( offset & 0x3FFF0000UL ) == 0x0000000UL ) + { /* positive offset */ + if ( (FT_Long)offset < valid->face->num_glyphs ) + return; + + GXV_TRACE(( "ligature action table includes" + " too large offset moving all GID" + " over defined range: 0x%04x\n", + offset & 0xFFFFU )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + + GXV_TRACE(( "ligature action table includes" + " invalid offset to add to 16-bit GID:" + " 0x%08x\n", offset )); + GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET ); + } + } + + + static void + gxv_morx_subtable_type2_entry_validate( + FT_UShort state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_UShort setComponent; + FT_UShort dontAdvance; + FT_UShort performAction; +#endif + FT_UShort reserved; + FT_UShort ligActionIndex; + + FT_UNUSED( state ); + FT_UNUSED( limit ); + + +#ifdef GXV_LOAD_UNUSED_VARS + setComponent = (FT_UShort)( ( flags >> 15 ) & 1 ); + dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); + performAction = (FT_UShort)( ( flags >> 13 ) & 1 ); +#endif + + reserved = (FT_UShort)( flags & 0x1FFF ); + ligActionIndex = glyphOffset_p->u; + + if ( reserved > 0 ) + GXV_TRACE(( " reserved 14bit is non-zero\n" )); + + if ( 0 < ligActionIndex ) + gxv_morx_subtable_type2_ligActionIndex_validate( + table, ligActionIndex, valid ); + } + + + static void + gxv_morx_subtable_type2_ligatureTable_validate( FT_Bytes table, + GXV_Validator valid ) + { + GXV_morx_subtable_type2_StateOptRecData optdata = + (GXV_morx_subtable_type2_StateOptRecData)valid->xstatetable.optdata; + + FT_Bytes p = table + optdata->ligatureTable; + FT_Bytes limit = table + optdata->ligatureTable + + optdata->ligatureTable_length; + + + GXV_NAME_ENTER( "morx chain subtable type2 - substitutionTable" ); + + if ( 0 != optdata->ligatureTable ) + { + /* Apple does not give specification of ligatureTable format */ + while ( p < limit ) + { + FT_UShort lig_gid; + + + GXV_LIMIT_CHECK( 2 ); + lig_gid = FT_NEXT_USHORT( p ); + if ( lig_gid < valid->face->num_glyphs ) + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); + } + } + + GXV_EXIT; + } + + + FT_LOCAL_DEF( void ) + gxv_morx_subtable_type2_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_morx_subtable_type2_StateOptRec lig_rec; + + + GXV_NAME_ENTER( "morx chain subtable type2 (Ligature Substitution)" ); + + GXV_LIMIT_CHECK( GXV_MORX_SUBTABLE_TYPE2_HEADER_SIZE ); + + valid->xstatetable.optdata = + &lig_rec; + valid->xstatetable.optdata_load_func = + gxv_morx_subtable_type2_opttable_load; + valid->xstatetable.subtable_setup_func = + gxv_morx_subtable_type2_subtable_setup; + valid->xstatetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_USHORT; + valid->xstatetable.entry_validate_func = + gxv_morx_subtable_type2_entry_validate; + + gxv_XStateTable_validate( p, limit, valid ); + + p += valid->subtable_length; + gxv_morx_subtable_type2_ligatureTable_validate( table, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/src/gxvalid/gxvmorx4.c b/src/gxvalid/gxvmorx4.c new file mode 100644 index 0000000..c0d2f78 --- /dev/null +++ b/src/gxvalid/gxvmorx4.c @@ -0,0 +1,55 @@ +/***************************************************************************/ +/* */ +/* gxvmorx4.c */ +/* */ +/* TrueTypeGX/AAT morx table validation */ +/* body for "morx" type4 (Non-Contextual Glyph Substitution) subtable. */ +/* */ +/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmorx.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmorx + + + FT_LOCAL_DEF( void ) + gxv_morx_subtable_type4_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + GXV_NAME_ENTER( "morx chain subtable type4 " + "(Non-Contextual Glyph Substitution)" ); + + gxv_mort_subtable_type4_validate( table, limit, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/src/gxvalid/gxvmorx5.c b/src/gxvalid/gxvmorx5.c new file mode 100644 index 0000000..d8cf700 --- /dev/null +++ b/src/gxvalid/gxvmorx5.c @@ -0,0 +1,225 @@ +/***************************************************************************/ +/* */ +/* gxvmorx5.c */ +/* */ +/* TrueTypeGX/AAT morx table validation */ +/* body for type5 (Contextual Glyph Insertion) subtable. */ +/* */ +/* Copyright 2005, 2007 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvmorx.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvmorx + + + /* + * `morx' subtable type5 (Contextual Glyph Insertion) + * has format of a StateTable with insertion-glyph-list + * without name. However, the 32bit offset from the head + * of subtable to the i-g-l is given after `entryTable', + * without variable name specification (the existence of + * this offset to the table is different from mort type5). + */ + + + typedef struct GXV_morx_subtable_type5_StateOptRec_ + { + FT_ULong insertionGlyphList; + FT_ULong insertionGlyphList_length; + + } GXV_morx_subtable_type5_StateOptRec, + *GXV_morx_subtable_type5_StateOptRecData; + + +#define GXV_MORX_SUBTABLE_TYPE5_HEADER_SIZE \ + ( GXV_STATETABLE_HEADER_SIZE + 4 ) + + + static void + gxv_morx_subtable_type5_insertionGlyphList_load( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_morx_subtable_type5_StateOptRecData optdata = + (GXV_morx_subtable_type5_StateOptRecData)valid->xstatetable.optdata; + + + GXV_LIMIT_CHECK( 4 ); + optdata->insertionGlyphList = FT_NEXT_ULONG( p ); + } + + + static void + gxv_morx_subtable_type5_subtable_setup( FT_ULong table_size, + FT_ULong classTable, + FT_ULong stateArray, + FT_ULong entryTable, + FT_ULong* classTable_length_p, + FT_ULong* stateArray_length_p, + FT_ULong* entryTable_length_p, + GXV_Validator valid ) + { + FT_ULong o[4]; + FT_ULong* l[4]; + FT_ULong buff[5]; + + GXV_morx_subtable_type5_StateOptRecData optdata = + (GXV_morx_subtable_type5_StateOptRecData)valid->xstatetable.optdata; + + + o[0] = classTable; + o[1] = stateArray; + o[2] = entryTable; + o[3] = optdata->insertionGlyphList; + l[0] = classTable_length_p; + l[1] = stateArray_length_p; + l[2] = entryTable_length_p; + l[3] = &(optdata->insertionGlyphList_length); + + gxv_set_length_by_ulong_offset( o, l, buff, 4, table_size, valid ); + } + + + static void + gxv_morx_subtable_type5_InsertList_validate( FT_UShort table_index, + FT_UShort count, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table + table_index * 2; + + +#ifndef GXV_LOAD_TRACE_VARS + GXV_LIMIT_CHECK( count * 2 ); +#else + while ( p < table + count * 2 + table_index * 2 ) + { + FT_UShort insert_glyphID; + + + GXV_LIMIT_CHECK( 2 ); + insert_glyphID = FT_NEXT_USHORT( p ); + GXV_TRACE(( " 0x%04x", insert_glyphID )); + } + + GXV_TRACE(( "\n" )); +#endif + } + + + static void + gxv_morx_subtable_type5_entry_validate( + FT_UShort state, + FT_UShort flags, + GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, + FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { +#ifdef GXV_LOAD_UNUSED_VARS + FT_Bool setMark; + FT_Bool dontAdvance; + FT_Bool currentIsKashidaLike; + FT_Bool markedIsKashidaLike; + FT_Bool currentInsertBefore; + FT_Bool markedInsertBefore; +#endif + FT_Byte currentInsertCount; + FT_Byte markedInsertCount; + FT_Byte currentInsertList; + FT_UShort markedInsertList; + + FT_UNUSED( state ); + + +#ifdef GXV_LOAD_UNUSED_VARS + setMark = FT_BOOL( ( flags >> 15 ) & 1 ); + dontAdvance = FT_BOOL( ( flags >> 14 ) & 1 ); + currentIsKashidaLike = FT_BOOL( ( flags >> 13 ) & 1 ); + markedIsKashidaLike = FT_BOOL( ( flags >> 12 ) & 1 ); + currentInsertBefore = FT_BOOL( ( flags >> 11 ) & 1 ); + markedInsertBefore = FT_BOOL( ( flags >> 10 ) & 1 ); +#endif + + currentInsertCount = (FT_Byte)( ( flags >> 5 ) & 0x1F ); + markedInsertCount = (FT_Byte)( flags & 0x001F ); + + currentInsertList = (FT_Byte) ( glyphOffset_p->ul >> 16 ); + markedInsertList = (FT_UShort)( glyphOffset_p->ul ); + + if ( currentInsertList && 0 != currentInsertCount ) + gxv_morx_subtable_type5_InsertList_validate( currentInsertList, + currentInsertCount, + table, limit, + valid ); + + if ( markedInsertList && 0 != markedInsertCount ) + gxv_morx_subtable_type5_InsertList_validate( markedInsertList, + markedInsertCount, + table, limit, + valid ); + } + + + FT_LOCAL_DEF( void ) + gxv_morx_subtable_type5_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + + GXV_morx_subtable_type5_StateOptRec et_rec; + GXV_morx_subtable_type5_StateOptRecData et = &et_rec; + + + GXV_NAME_ENTER( "morx chain subtable type5 (Glyph Insertion)" ); + + GXV_LIMIT_CHECK( GXV_MORX_SUBTABLE_TYPE5_HEADER_SIZE ); + + valid->xstatetable.optdata = + et; + valid->xstatetable.optdata_load_func = + gxv_morx_subtable_type5_insertionGlyphList_load; + valid->xstatetable.subtable_setup_func = + gxv_morx_subtable_type5_subtable_setup; + valid->xstatetable.entry_glyphoffset_fmt = + GXV_GLYPHOFFSET_ULONG; + valid->xstatetable.entry_validate_func = + gxv_morx_subtable_type5_entry_validate; + + gxv_XStateTable_validate( p, limit, valid ); + + GXV_EXIT; + } + + +/* END */ diff --git a/src/gxvalid/gxvopbd.c b/src/gxvalid/gxvopbd.c new file mode 100644 index 0000000..e125060 --- /dev/null +++ b/src/gxvalid/gxvopbd.c @@ -0,0 +1,217 @@ +/***************************************************************************/ +/* */ +/* gxvopbd.c */ +/* */ +/* TrueTypeGX/AAT opbd table validation (body). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvopbd + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct GXV_opbd_DataRec_ + { + FT_UShort format; + FT_UShort valueOffset_min; + + } GXV_opbd_DataRec, *GXV_opbd_Data; + + +#define GXV_OPBD_DATA( FIELD ) GXV_TABLE_DATA( opbd, FIELD ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_opbd_LookupValue_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + /* offset in LookupTable is measured from the head of opbd table */ + FT_Bytes p = valid->root->base + value_p->u; + FT_Bytes limit = valid->root->limit; + FT_Short delta_value; + int i; + + + if ( value_p->u < GXV_OPBD_DATA( valueOffset_min ) ) + GXV_OPBD_DATA( valueOffset_min ) = value_p->u; + + for ( i = 0; i < 4; i++ ) + { + GXV_LIMIT_CHECK( 2 ); + delta_value = FT_NEXT_SHORT( p ); + + if ( GXV_OPBD_DATA( format ) ) /* format 1, value is ctrl pt. */ + { + if ( delta_value == -1 ) + continue; + + gxv_ctlPoint_validate( glyph, delta_value, valid ); + } + else /* format 0, value is distance */ + continue; + } + } + + + /* + opbd ---------------------+ + | + +===============+ | + | lookup header | | + +===============+ | + | BinSrchHeader | | + +===============+ | + | lastGlyph[0] | | + +---------------+ | + | firstGlyph[0] | | head of opbd sfnt table + +---------------+ | + + | offset[0] | -> | offset [byte] + +===============+ | + + | lastGlyph[1] | | (glyphID - firstGlyph) * 4 * sizeof(FT_Short) [byte] + +---------------+ | + | firstGlyph[1] | | + +---------------+ | + | offset[1] | | + +===============+ | + | + .... | + | + 48bit value array | + +===============+ | + | value | <-------+ + | | + | | + | | + +---------------+ + .... */ + + static GXV_LookupValueDesc + gxv_opbd_LookupFmt4_transit( FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + GXV_LookupValueDesc value; + + FT_UNUSED( lookuptbl_limit ); + FT_UNUSED( valid ); + + /* XXX: check range? */ + value.u = (FT_UShort)( base_value_p->u + + relative_gindex * 4 * sizeof ( FT_Short ) ); + + return value; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** opbd TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_opbd_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + GXV_opbd_DataRec opbdrec; + GXV_opbd_Data opbd = &opbdrec; + FT_Bytes p = table; + FT_Bytes limit = 0; + + FT_ULong version; + + + valid->root = ftvalid; + valid->table_data = opbd; + valid->face = face; + + FT_TRACE3(( "validating `opbd' table\n" )); + GXV_INIT; + GXV_OPBD_DATA( valueOffset_min ) = 0xFFFFU; + + + GXV_LIMIT_CHECK( 4 + 2 ); + version = FT_NEXT_ULONG( p ); + GXV_OPBD_DATA( format ) = FT_NEXT_USHORT( p ); + + + /* only 0x00010000 is defined (1996) */ + GXV_TRACE(( "(version=0x%08x)\n", version )); + if ( 0x00010000UL != version ) + FT_INVALID_FORMAT; + + /* only values 0 and 1 are defined (1996) */ + GXV_TRACE(( "(format=0x%04x)\n", GXV_OPBD_DATA( format ) )); + if ( 0x0001 < GXV_OPBD_DATA( format ) ) + FT_INVALID_FORMAT; + + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_opbd_LookupValue_validate; + valid->lookupfmt4_trans = gxv_opbd_LookupFmt4_transit; + + gxv_LookupTable_validate( p, limit, valid ); + p += valid->subtable_length; + + if ( p > table + GXV_OPBD_DATA( valueOffset_min ) ) + { + GXV_TRACE(( + "found overlap between LookupTable and opbd_value array\n" )); + FT_INVALID_OFFSET; + } + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/gxvalid/gxvprop.c b/src/gxvalid/gxvprop.c new file mode 100644 index 0000000..0be2133 --- /dev/null +++ b/src/gxvalid/gxvprop.c @@ -0,0 +1,329 @@ +/***************************************************************************/ +/* */ +/* gxvprop.c */ +/* */ +/* TrueTypeGX/AAT prop table validation (body). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvprop + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define GXV_PROP_HEADER_SIZE ( 4 + 2 + 2 ) +#define GXV_PROP_SIZE_MIN GXV_PROP_HEADER_SIZE + + typedef struct GXV_prop_DataRec_ + { + FT_Fixed version; + + } GXV_prop_DataRec, *GXV_prop_Data; + +#define GXV_PROP_DATA( field ) GXV_TABLE_DATA( prop, field ) + +#define GXV_PROP_FLOATER 0x8000U +#define GXV_PROP_USE_COMPLEMENTARY_BRACKET 0x1000U +#define GXV_PROP_COMPLEMENTARY_BRACKET_OFFSET 0x0F00U +#define GXV_PROP_ATTACHING_TO_RIGHT 0x0080U +#define GXV_PROP_RESERVED 0x0060U +#define GXV_PROP_DIRECTIONALITY_CLASS 0x001FU + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_prop_zero_advance_validate( FT_UShort gid, + GXV_Validator valid ) + { + FT_Face face; + FT_Error error; + FT_GlyphSlot glyph; + + + GXV_NAME_ENTER( "zero advance" ); + + face = valid->face; + + error = FT_Load_Glyph( face, + gid, + FT_LOAD_IGNORE_TRANSFORM ); + if ( error ) + FT_INVALID_GLYPH_ID; + + glyph = face->glyph; + + if ( glyph->advance.x != (FT_Pos)0 || + glyph->advance.y != (FT_Pos)0 ) + { + GXV_TRACE(( " found non-zero advance in zero-advance glyph\n" )); + FT_INVALID_DATA; + } + + GXV_EXIT; + } + + + /* Pass 0 as GLYPH to check the default property */ + static void + gxv_prop_property_validate( FT_UShort property, + FT_UShort glyph, + GXV_Validator valid ) + { + if ( glyph != 0 && ( property & GXV_PROP_FLOATER ) ) + gxv_prop_zero_advance_validate( glyph, valid ); + + if ( property & GXV_PROP_USE_COMPLEMENTARY_BRACKET ) + { + FT_UShort offset; + char complement; + + + offset = (FT_UShort)( property & GXV_PROP_COMPLEMENTARY_BRACKET_OFFSET ); + if ( offset == 0 ) + { + GXV_TRACE(( " found zero offset to property\n" )); + FT_INVALID_OFFSET; + } + + complement = (char)( offset >> 8 ); + if ( complement & 0x08 ) + { + /* Top bit is set: negative */ + + /* Calculate the absolute offset */ + complement = (char)( ( complement & 0x07 ) + 1 ); + + /* The gid for complement must be greater than 0 */ + if ( glyph <= complement ) + { + GXV_TRACE(( " found non-positive glyph complement\n" )); + FT_INVALID_DATA; + } + } + else + { + /* The gid for complement must be the face. */ + gxv_glyphid_validate( (FT_UShort)( glyph + complement ), valid ); + } + } + else + { + if ( property & GXV_PROP_COMPLEMENTARY_BRACKET_OFFSET ) + GXV_TRACE(( "glyph %d cannot have complementary bracketing\n", + glyph )); + } + + /* this is introduced in version 2.0 */ + if ( property & GXV_PROP_ATTACHING_TO_RIGHT ) + { + if ( GXV_PROP_DATA( version ) == 0x00010000UL ) + { + GXV_TRACE(( " found older version (1.0) in new version table\n" )); + FT_INVALID_DATA; + } + } + + if ( property & GXV_PROP_RESERVED ) + { + GXV_TRACE(( " found non-zero bits in reserved bits\n" )); + FT_INVALID_DATA; + } + + if ( ( property & GXV_PROP_DIRECTIONALITY_CLASS ) > 11 ) + { + /* TODO: Too restricted. Use the validation level. */ + if ( GXV_PROP_DATA( version ) == 0x00010000UL || + GXV_PROP_DATA( version ) == 0x00020000UL ) + { + GXV_TRACE(( " found too old version in directionality class\n" )); + FT_INVALID_DATA; + } + } + } + + + static void + gxv_prop_LookupValue_validate( FT_UShort glyph, + GXV_LookupValueCPtr value_p, + GXV_Validator valid ) + { + gxv_prop_property_validate( value_p->u, glyph, valid ); + } + + + /* + +===============+ --------+ + | lookup header | | + +===============+ | + | BinSrchHeader | | + +===============+ | + | lastGlyph[0] | | + +---------------+ | + | firstGlyph[0] | | head of lookup table + +---------------+ | + + | offset[0] | -> | offset [byte] + +===============+ | + + | lastGlyph[1] | | (glyphID - firstGlyph) * 2 [byte] + +---------------+ | + | firstGlyph[1] | | + +---------------+ | + | offset[1] | | + +===============+ | + | + ... | + | + 16bit value array | + +===============+ | + | value | <-------+ + ... + */ + + static GXV_LookupValueDesc + gxv_prop_LookupFmt4_transit( FT_UShort relative_gindex, + GXV_LookupValueCPtr base_value_p, + FT_Bytes lookuptbl_limit, + GXV_Validator valid ) + { + FT_Bytes p; + FT_Bytes limit; + FT_UShort offset; + GXV_LookupValueDesc value; + + /* XXX: check range? */ + offset = (FT_UShort)( base_value_p->u + + relative_gindex * sizeof ( FT_UShort ) ); + p = valid->lookuptbl_head + offset; + limit = lookuptbl_limit; + + GXV_LIMIT_CHECK ( 2 ); + value.u = FT_NEXT_USHORT( p ); + + return value; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** prop TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_prop_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + FT_Bytes p = table; + FT_Bytes limit = 0; + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + + GXV_prop_DataRec proprec; + GXV_prop_Data prop = &proprec; + + FT_Fixed version; + FT_UShort format; + FT_UShort defaultProp; + + + valid->root = ftvalid; + valid->table_data = prop; + valid->face = face; + + FT_TRACE3(( "validating `prop' table\n" )); + GXV_INIT; + + GXV_LIMIT_CHECK( 4 + 2 + 2 ); + version = FT_NEXT_ULONG( p ); + format = FT_NEXT_USHORT( p ); + defaultProp = FT_NEXT_USHORT( p ); + + GXV_TRACE(( " version 0x%08x\n", version )); + GXV_TRACE(( " format 0x%04x\n", format )); + GXV_TRACE(( " defaultProp 0x%04x\n", defaultProp )); + + /* only versions 1.0, 2.0, 3.0 are defined (1996) */ + if ( version != 0x00010000UL && + version != 0x00020000UL && + version != 0x00030000UL ) + { + GXV_TRACE(( " found unknown version\n" )); + FT_INVALID_FORMAT; + } + + + /* only formats 0x0000, 0x0001 are defined (1996) */ + if ( format > 1 ) + { + GXV_TRACE(( " found unknown format\n" )); + FT_INVALID_FORMAT; + } + + gxv_prop_property_validate( defaultProp, 0, valid ); + + if ( format == 0 ) + { + FT_TRACE3(( "(format 0, no per-glyph properties, " + "remaining %d bytes are skipped)", limit - p )); + goto Exit; + } + + /* format == 1 */ + GXV_PROP_DATA( version ) = version; + + valid->lookupval_sign = GXV_LOOKUPVALUE_UNSIGNED; + valid->lookupval_func = gxv_prop_LookupValue_validate; + valid->lookupfmt4_trans = gxv_prop_LookupFmt4_transit; + + gxv_LookupTable_validate( p, limit, valid ); + + Exit: + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/gxvalid/gxvtrak.c b/src/gxvalid/gxvtrak.c new file mode 100644 index 0000000..11fbd7c --- /dev/null +++ b/src/gxvalid/gxvtrak.c @@ -0,0 +1,286 @@ +/***************************************************************************/ +/* */ +/* gxvtrak.c */ +/* */ +/* TrueTypeGX/AAT trak table validation (body). */ +/* */ +/* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* */ +/* gxvalid is derived from both gxlayout module and otvalid module. */ +/* Development of gxlayout is supported by the Information-technology */ +/* Promotion Agency(IPA), Japan. */ +/* */ +/***************************************************************************/ + + +#include "gxvalid.h" +#include "gxvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_gxvtrak + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Data and Types *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + * referred track table format specification: + * http://developer.apple.com/fonts/TTRefMan/RM06/Chap6trak.html + * last update was 1996. + * ---------------------------------------------- + * [MINIMUM HEADER]: GXV_TRAK_SIZE_MIN + * version (fixed: 32bit) = 0x00010000 + * format (uint16: 16bit) = 0 is only defined (1996) + * horizOffset (uint16: 16bit) + * vertOffset (uint16: 16bit) + * reserved (uint16: 16bit) = 0 + * ---------------------------------------------- + * [VARIABLE BODY]: + * horizData + * header ( 2 + 2 + 4 + * trackTable + nTracks * ( 4 + 2 + 2 ) + * sizeTable + nSizes * 4 ) + * ---------------------------------------------- + * vertData + * header ( 2 + 2 + 4 + * trackTable + nTracks * ( 4 + 2 + 2 ) + * sizeTable + nSizes * 4 ) + * ---------------------------------------------- + */ + typedef struct GXV_trak_DataRec_ + { + FT_UShort trackValueOffset_min; + FT_UShort trackValueOffset_max; + + } GXV_trak_DataRec, *GXV_trak_Data; + + +#define GXV_TRAK_DATA( FIELD ) GXV_TABLE_DATA( trak, FIELD ) + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + gxv_trak_trackTable_validate( FT_Bytes table, + FT_Bytes limit, + FT_UShort nTracks, + GXV_Validator valid ) + { + FT_Bytes p = table; + + FT_Fixed track, t; + FT_UShort nameIndex; + FT_UShort offset; + FT_UShort i, j; + + + GXV_NAME_ENTER( "trackTable" ); + + GXV_TRAK_DATA( trackValueOffset_min ) = 0xFFFFU; + GXV_TRAK_DATA( trackValueOffset_max ) = 0x0000; + + GXV_LIMIT_CHECK( nTracks * ( 4 + 2 + 2 ) ); + + for ( i = 0; i < nTracks; i ++ ) + { + p = table + i * ( 4 + 2 + 2 ); + track = FT_NEXT_LONG( p ); + nameIndex = FT_NEXT_USHORT( p ); + offset = FT_NEXT_USHORT( p ); + + if ( offset < GXV_TRAK_DATA( trackValueOffset_min ) ) + GXV_TRAK_DATA( trackValueOffset_min ) = offset; + if ( offset > GXV_TRAK_DATA( trackValueOffset_max ) ) + GXV_TRAK_DATA( trackValueOffset_max ) = offset; + + gxv_sfntName_validate( nameIndex, 256, 32767, valid ); + + for ( j = i; j < nTracks; j ++ ) + { + p = table + j * ( 4 + 2 + 2 ); + t = FT_NEXT_LONG( p ); + if ( t == track ) + GXV_TRACE(( "duplicated entries found for track value 0x%x\n", + track )); + } + } + + valid->subtable_length = p - table; + GXV_EXIT; + } + + + static void + gxv_trak_trackData_validate( FT_Bytes table, + FT_Bytes limit, + GXV_Validator valid ) + { + FT_Bytes p = table; + FT_UShort nTracks; + FT_UShort nSizes; + FT_ULong sizeTableOffset; + + GXV_ODTECT( 4, odtect ); + + + GXV_ODTECT_INIT( odtect ); + GXV_NAME_ENTER( "trackData" ); + + /* read the header of trackData */ + GXV_LIMIT_CHECK( 2 + 2 + 4 ); + nTracks = FT_NEXT_USHORT( p ); + nSizes = FT_NEXT_USHORT( p ); + sizeTableOffset = FT_NEXT_ULONG( p ); + + gxv_odtect_add_range( table, p - table, "trackData header", odtect ); + + /* validate trackTable */ + gxv_trak_trackTable_validate( p, limit, nTracks, valid ); + gxv_odtect_add_range( p, valid->subtable_length, + "trackTable", odtect ); + + /* sizeTable is array of FT_Fixed, don't check contents */ + p = valid->root->base + sizeTableOffset; + GXV_LIMIT_CHECK( nSizes * 4 ); + gxv_odtect_add_range( p, nSizes * 4, "sizeTable", odtect ); + + /* validate trackValueOffet */ + p = valid->root->base + GXV_TRAK_DATA( trackValueOffset_min ); + if ( limit - p < nTracks * nSizes * 2 ) + GXV_TRACE(( "too short trackValue array\n" )); + + p = valid->root->base + GXV_TRAK_DATA( trackValueOffset_max ); + GXV_LIMIT_CHECK( nSizes * 2 ); + + gxv_odtect_add_range( valid->root->base + + GXV_TRAK_DATA( trackValueOffset_min ), + GXV_TRAK_DATA( trackValueOffset_max ) + - GXV_TRAK_DATA( trackValueOffset_min ) + + nSizes * 2, + "trackValue array", odtect ); + + gxv_odtect_validate( odtect, valid ); + + GXV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** trak TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + gxv_trak_validate( FT_Bytes table, + FT_Face face, + FT_Validator ftvalid ) + { + FT_Bytes p = table; + FT_Bytes limit = 0; + + GXV_ValidatorRec validrec; + GXV_Validator valid = &validrec; + GXV_trak_DataRec trakrec; + GXV_trak_Data trak = &trakrec; + + FT_ULong version; + FT_UShort format; + FT_UShort horizOffset; + FT_UShort vertOffset; + FT_UShort reserved; + + + GXV_ODTECT( 3, odtect ); + + GXV_ODTECT_INIT( odtect ); + valid->root = ftvalid; + valid->table_data = trak; + valid->face = face; + + limit = valid->root->limit; + + FT_TRACE3(( "validating `trak' table\n" )); + GXV_INIT; + + GXV_LIMIT_CHECK( 4 + 2 + 2 + 2 + 2 ); + version = FT_NEXT_ULONG( p ); + format = FT_NEXT_USHORT( p ); + horizOffset = FT_NEXT_USHORT( p ); + vertOffset = FT_NEXT_USHORT( p ); + reserved = FT_NEXT_USHORT( p ); + + GXV_TRACE(( " (version = 0x%08x)\n", version )); + GXV_TRACE(( " (format = 0x%04x)\n", format )); + GXV_TRACE(( " (horizOffset = 0x%04x)\n", horizOffset )); + GXV_TRACE(( " (vertOffset = 0x%04x)\n", vertOffset )); + GXV_TRACE(( " (reserved = 0x%04x)\n", reserved )); + + /* Version 1.0 (always:1996) */ + if ( version != 0x00010000UL ) + FT_INVALID_FORMAT; + + /* format 0 (always:1996) */ + if ( format != 0x0000 ) + FT_INVALID_FORMAT; + + GXV_32BIT_ALIGNMENT_VALIDATE( horizOffset ); + GXV_32BIT_ALIGNMENT_VALIDATE( vertOffset ); + + /* Reserved Fixed Value (always) */ + if ( reserved != 0x0000 ) + FT_INVALID_DATA; + + /* validate trackData */ + if ( 0 < horizOffset ) + { + gxv_trak_trackData_validate( table + horizOffset, limit, valid ); + gxv_odtect_add_range( table + horizOffset, valid->subtable_length, + "horizJustData", odtect ); + } + + if ( 0 < vertOffset ) + { + gxv_trak_trackData_validate( table + vertOffset, limit, valid ); + gxv_odtect_add_range( table + vertOffset, valid->subtable_length, + "vertJustData", odtect ); + } + + gxv_odtect_validate( odtect, valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/gxvalid/module.mk b/src/gxvalid/module.mk new file mode 100644 index 0000000..9fd098e --- /dev/null +++ b/src/gxvalid/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 gxvalid module definition +# + +# Copyright 2004, 2005, 2006 +# by suzuki toshiya, Masatake YAMATO, Red Hat K.K., +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += GXVALID_MODULE + +define GXVALID_MODULE +$(OPEN_DRIVER) FT_Module_Class, gxv_module_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)gxvalid $(ECHO_DRIVER_DESC)TrueTypeGX/AAT validation module$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/gxvalid/rules.mk b/src/gxvalid/rules.mk new file mode 100644 index 0000000..57bc082 --- /dev/null +++ b/src/gxvalid/rules.mk @@ -0,0 +1,94 @@ +# +# FreeType 2 TrueTypeGX/AAT validation driver configuration rules +# + + +# Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# GXV driver directory +# +GXV_DIR := $(SRC_DIR)/gxvalid + + +# compilation flags for the driver +# +GXV_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(GXV_DIR)) + + +# GXV driver sources (i.e., C files) +# +GXV_DRV_SRC := $(GXV_DIR)/gxvcommn.c \ + $(GXV_DIR)/gxvfeat.c \ + $(GXV_DIR)/gxvbsln.c \ + $(GXV_DIR)/gxvtrak.c \ + $(GXV_DIR)/gxvopbd.c \ + $(GXV_DIR)/gxvprop.c \ + $(GXV_DIR)/gxvjust.c \ + $(GXV_DIR)/gxvmort.c \ + $(GXV_DIR)/gxvmort0.c \ + $(GXV_DIR)/gxvmort1.c \ + $(GXV_DIR)/gxvmort2.c \ + $(GXV_DIR)/gxvmort4.c \ + $(GXV_DIR)/gxvmort5.c \ + $(GXV_DIR)/gxvmorx.c \ + $(GXV_DIR)/gxvmorx0.c \ + $(GXV_DIR)/gxvmorx1.c \ + $(GXV_DIR)/gxvmorx2.c \ + $(GXV_DIR)/gxvmorx4.c \ + $(GXV_DIR)/gxvmorx5.c \ + $(GXV_DIR)/gxvlcar.c \ + $(GXV_DIR)/gxvkern.c \ + $(GXV_DIR)/gxvmod.c + +# GXV driver headers +# +GXV_DRV_H := $(GXV_DIR)/gxvalid.h \ + $(GXV_DIR)/gxverror.h \ + $(GXV_DIR)/gxvcommn.h \ + $(GXV_DIR)/gxvfeat.h \ + $(GXV_DIR)/gxvmod.h \ + $(GXV_DIR)/gxvmort.h \ + $(GXV_DIR)/gxvmorx.h + + +# GXV driver object(s) +# +# GXV_DRV_OBJ_M is used during `multi' builds. +# GXV_DRV_OBJ_S is used during `single' builds. +# +GXV_DRV_OBJ_M := $(GXV_DRV_SRC:$(GXV_DIR)/%.c=$(OBJ_DIR)/%.$O) +GXV_DRV_OBJ_S := $(OBJ_DIR)/gxvalid.$O + +# GXV driver source file for single build +# +GXV_DRV_SRC_S := $(GXV_DIR)/gxvalid.c + + +# GXV driver - single object +# +$(GXV_DRV_OBJ_S): $(GXV_DRV_SRC_S) $(GXV_DRV_SRC) \ + $(FREETYPE_H) $(GXV_DRV_H) + $(GXV_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(GXV_DRV_SRC_S)) + + +# GXV driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(GXV_DIR)/%.c $(FREETYPE_H) $(GXV_DRV_H) + $(GXV_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(GXV_DRV_OBJ_S) +DRV_OBJS_M += $(GXV_DRV_OBJ_M) + + +# EOF diff --git a/src/gzip/Jamfile b/src/gzip/Jamfile new file mode 100644 index 0000000..a7aafa0 --- /dev/null +++ b/src/gzip/Jamfile @@ -0,0 +1,16 @@ +# FreeType 2 src/gzip Jamfile +# +# Copyright 2001 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) gzip ; + +Library $(FT2_LIB) : ftgzip.c ; + +# end of src/pcf Jamfile diff --git a/src/gzip/adler32.c b/src/gzip/adler32.c new file mode 100644 index 0000000..c53f9dd --- /dev/null +++ b/src/gzip/adler32.c @@ -0,0 +1,48 @@ +/* adler32.c -- compute the Adler-32 checksum of a data stream + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#include "zlib.h" + +#define BASE 65521L /* largest prime smaller than 65536 */ +#define NMAX 5552 +/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ + +#define DO1(buf,i) {s1 += buf[i]; s2 += s1;} +#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1); +#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2); +#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); +#define DO16(buf) DO8(buf,0); DO8(buf,8); + +/* ========================================================================= */ +ZEXPORT(uLong) adler32( /* adler, buf, len) */ + uLong adler, + const Bytef *buf, + uInt len ) +{ + unsigned long s1 = adler & 0xffff; + unsigned long s2 = (adler >> 16) & 0xffff; + int k; + + if (buf == Z_NULL) return 1L; + + while (len > 0) { + k = len < NMAX ? len : NMAX; + len -= k; + while (k >= 16) { + DO16(buf); + buf += 16; + k -= 16; + } + if (k != 0) do { + s1 += *buf++; + s2 += s1; + } while (--k); + s1 %= BASE; + s2 %= BASE; + } + return (s2 << 16) | s1; +} diff --git a/src/gzip/ftgzip.c b/src/gzip/ftgzip.c new file mode 100644 index 0000000..f3d2ef9 --- /dev/null +++ b/src/gzip/ftgzip.c @@ -0,0 +1,689 @@ +/***************************************************************************/ +/* */ +/* ftgzip.c */ +/* */ +/* FreeType support for .gz compressed files. */ +/* */ +/* This optional component relies on zlib. It should mainly be used to */ +/* parse compressed PCF fonts, as found with many X11 server */ +/* distributions. */ +/* */ +/* Copyright 2002-2006, 2009-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H +#include FT_GZIP_H +#include FT_CONFIG_STANDARD_LIBRARY_H + + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX Gzip_Err_ +#define FT_ERR_BASE FT_Mod_Err_Gzip + +#include FT_ERRORS_H + + +#ifdef FT_CONFIG_OPTION_USE_ZLIB + +#ifdef FT_CONFIG_OPTION_PIC +#error "gzip code does not support PIC yet" +#endif + +#ifdef FT_CONFIG_OPTION_SYSTEM_ZLIB + +#include <zlib.h> + +#else /* !FT_CONFIG_OPTION_SYSTEM_ZLIB */ + + /* In this case, we include our own modified sources of the ZLib */ + /* within the "ftgzip" component. The modifications were necessary */ + /* to #include all files without conflicts, as well as preventing */ + /* the definition of "extern" functions that may cause linking */ + /* conflicts when a program is linked with both FreeType and the */ + /* original ZLib. */ + +#define NO_DUMMY_DECL +#ifndef USE_ZLIB_ZCALLOC +#define MY_ZCALLOC /* prevent all zcalloc() & zfree() in zutils.c */ +#endif + +#include "zlib.h" + +#undef SLOW +#define SLOW 1 /* we can't use asm-optimized sources here! */ + + /* Urgh. `inflate_mask' must not be declared twice -- C++ doesn't like + this. We temporarily disable it and load all necessary header files. */ +#define NO_INFLATE_MASK +#include "zutil.h" +#include "inftrees.h" +#include "infblock.h" +#include "infcodes.h" +#include "infutil.h" +#undef NO_INFLATE_MASK + + /* infutil.c must be included before infcodes.c */ +#include "zutil.c" +#include "inftrees.c" +#include "infutil.c" +#include "infcodes.c" +#include "infblock.c" +#include "inflate.c" +#include "adler32.c" + +#endif /* !FT_CONFIG_OPTION_SYSTEM_ZLIB */ + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** Z L I B M E M O R Y M A N A G E M E N T *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + + /* it is better to use FreeType memory routines instead of raw + 'malloc/free' */ + + static voidpf + ft_gzip_alloc( FT_Memory memory, + uInt items, + uInt size ) + { + FT_ULong sz = (FT_ULong)size * items; + FT_Error error; + FT_Pointer p = NULL; + + + (void)FT_ALLOC( p, sz ); + return p; + } + + + static void + ft_gzip_free( FT_Memory memory, + voidpf address ) + { + FT_MEM_FREE( address ); + } + + +#if !defined( FT_CONFIG_OPTION_SYSTEM_ZLIB ) && !defined( USE_ZLIB_ZCALLOC ) + + local voidpf + zcalloc ( voidpf opaque, + unsigned items, + unsigned size ) + { + return ft_gzip_alloc( (FT_Memory)opaque, items, size ); + } + + local void + zcfree( voidpf opaque, + voidpf ptr ) + { + ft_gzip_free( (FT_Memory)opaque, ptr ); + } + +#endif /* !SYSTEM_ZLIB && !USE_ZLIB_ZCALLOC */ + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** Z L I B F I L E D E S C R I P T O R *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + +#define FT_GZIP_BUFFER_SIZE 4096 + + typedef struct FT_GZipFileRec_ + { + FT_Stream source; /* parent/source stream */ + FT_Stream stream; /* embedding stream */ + FT_Memory memory; /* memory allocator */ + z_stream zstream; /* zlib input stream */ + + FT_ULong start; /* starting position, after .gz header */ + FT_Byte input[FT_GZIP_BUFFER_SIZE]; /* input read buffer */ + + FT_Byte buffer[FT_GZIP_BUFFER_SIZE]; /* output buffer */ + FT_ULong pos; /* position in output */ + FT_Byte* cursor; + FT_Byte* limit; + + } FT_GZipFileRec, *FT_GZipFile; + + + /* gzip flag byte */ +#define FT_GZIP_ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */ +#define FT_GZIP_HEAD_CRC 0x02 /* bit 1 set: header CRC present */ +#define FT_GZIP_EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ +#define FT_GZIP_ORIG_NAME 0x08 /* bit 3 set: original file name present */ +#define FT_GZIP_COMMENT 0x10 /* bit 4 set: file comment present */ +#define FT_GZIP_RESERVED 0xE0 /* bits 5..7: reserved */ + + + /* check and skip .gz header - we don't support `transparent' compression */ + static FT_Error + ft_gzip_check_header( FT_Stream stream ) + { + FT_Error error; + FT_Byte head[4]; + + + if ( FT_STREAM_SEEK( 0 ) || + FT_STREAM_READ( head, 4 ) ) + goto Exit; + + /* head[0] && head[1] are the magic numbers; */ + /* head[2] is the method, and head[3] the flags */ + if ( head[0] != 0x1f || + head[1] != 0x8b || + head[2] != Z_DEFLATED || + (head[3] & FT_GZIP_RESERVED) ) + { + error = Gzip_Err_Invalid_File_Format; + goto Exit; + } + + /* skip time, xflags and os code */ + (void)FT_STREAM_SKIP( 6 ); + + /* skip the extra field */ + if ( head[3] & FT_GZIP_EXTRA_FIELD ) + { + FT_UInt len; + + + if ( FT_READ_USHORT_LE( len ) || + FT_STREAM_SKIP( len ) ) + goto Exit; + } + + /* skip original file name */ + if ( head[3] & FT_GZIP_ORIG_NAME ) + for (;;) + { + FT_UInt c; + + + if ( FT_READ_BYTE( c ) ) + goto Exit; + + if ( c == 0 ) + break; + } + + /* skip .gz comment */ + if ( head[3] & FT_GZIP_COMMENT ) + for (;;) + { + FT_UInt c; + + + if ( FT_READ_BYTE( c ) ) + goto Exit; + + if ( c == 0 ) + break; + } + + /* skip CRC */ + if ( head[3] & FT_GZIP_HEAD_CRC ) + if ( FT_STREAM_SKIP( 2 ) ) + goto Exit; + + Exit: + return error; + } + + + static FT_Error + ft_gzip_file_init( FT_GZipFile zip, + FT_Stream stream, + FT_Stream source ) + { + z_stream* zstream = &zip->zstream; + FT_Error error = Gzip_Err_Ok; + + + zip->stream = stream; + zip->source = source; + zip->memory = stream->memory; + + zip->limit = zip->buffer + FT_GZIP_BUFFER_SIZE; + zip->cursor = zip->limit; + zip->pos = 0; + + /* check and skip .gz header */ + { + stream = source; + + error = ft_gzip_check_header( stream ); + if ( error ) + goto Exit; + + zip->start = FT_STREAM_POS(); + } + + /* initialize zlib -- there is no zlib header in the compressed stream */ + zstream->zalloc = (alloc_func)ft_gzip_alloc; + zstream->zfree = (free_func) ft_gzip_free; + zstream->opaque = stream->memory; + + zstream->avail_in = 0; + zstream->next_in = zip->buffer; + + if ( inflateInit2( zstream, -MAX_WBITS ) != Z_OK || + zstream->next_in == NULL ) + error = Gzip_Err_Invalid_File_Format; + + Exit: + return error; + } + + + static void + ft_gzip_file_done( FT_GZipFile zip ) + { + z_stream* zstream = &zip->zstream; + + + inflateEnd( zstream ); + + /* clear the rest */ + zstream->zalloc = NULL; + zstream->zfree = NULL; + zstream->opaque = NULL; + zstream->next_in = NULL; + zstream->next_out = NULL; + zstream->avail_in = 0; + zstream->avail_out = 0; + + zip->memory = NULL; + zip->source = NULL; + zip->stream = NULL; + } + + + static FT_Error + ft_gzip_file_reset( FT_GZipFile zip ) + { + FT_Stream stream = zip->source; + FT_Error error; + + + if ( !FT_STREAM_SEEK( zip->start ) ) + { + z_stream* zstream = &zip->zstream; + + + inflateReset( zstream ); + + zstream->avail_in = 0; + zstream->next_in = zip->input; + zstream->avail_out = 0; + zstream->next_out = zip->buffer; + + zip->limit = zip->buffer + FT_GZIP_BUFFER_SIZE; + zip->cursor = zip->limit; + zip->pos = 0; + } + + return error; + } + + + static FT_Error + ft_gzip_file_fill_input( FT_GZipFile zip ) + { + z_stream* zstream = &zip->zstream; + FT_Stream stream = zip->source; + FT_ULong size; + + + if ( stream->read ) + { + size = stream->read( stream, stream->pos, zip->input, + FT_GZIP_BUFFER_SIZE ); + if ( size == 0 ) + return Gzip_Err_Invalid_Stream_Operation; + } + else + { + size = stream->size - stream->pos; + if ( size > FT_GZIP_BUFFER_SIZE ) + size = FT_GZIP_BUFFER_SIZE; + + if ( size == 0 ) + return Gzip_Err_Invalid_Stream_Operation; + + FT_MEM_COPY( zip->input, stream->base + stream->pos, size ); + } + stream->pos += size; + + zstream->next_in = zip->input; + zstream->avail_in = size; + + return Gzip_Err_Ok; + } + + + static FT_Error + ft_gzip_file_fill_output( FT_GZipFile zip ) + { + z_stream* zstream = &zip->zstream; + FT_Error error = Gzip_Err_Ok; + + + zip->cursor = zip->buffer; + zstream->next_out = zip->cursor; + zstream->avail_out = FT_GZIP_BUFFER_SIZE; + + while ( zstream->avail_out > 0 ) + { + int err; + + + if ( zstream->avail_in == 0 ) + { + error = ft_gzip_file_fill_input( zip ); + if ( error ) + break; + } + + err = inflate( zstream, Z_NO_FLUSH ); + + if ( err == Z_STREAM_END ) + { + zip->limit = zstream->next_out; + if ( zip->limit == zip->cursor ) + error = Gzip_Err_Invalid_Stream_Operation; + break; + } + else if ( err != Z_OK ) + { + error = Gzip_Err_Invalid_Stream_Operation; + break; + } + } + + return error; + } + + + /* fill output buffer; `count' must be <= FT_GZIP_BUFFER_SIZE */ + static FT_Error + ft_gzip_file_skip_output( FT_GZipFile zip, + FT_ULong count ) + { + FT_Error error = Gzip_Err_Ok; + FT_ULong delta; + + + for (;;) + { + delta = (FT_ULong)( zip->limit - zip->cursor ); + if ( delta >= count ) + delta = count; + + zip->cursor += delta; + zip->pos += delta; + + count -= delta; + if ( count == 0 ) + break; + + error = ft_gzip_file_fill_output( zip ); + if ( error ) + break; + } + + return error; + } + + + static FT_ULong + ft_gzip_file_io( FT_GZipFile zip, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_ULong result = 0; + FT_Error error; + + + /* Reset inflate stream if we're seeking backwards. */ + /* Yes, that is not too efficient, but it saves memory :-) */ + if ( pos < zip->pos ) + { + error = ft_gzip_file_reset( zip ); + if ( error ) + goto Exit; + } + + /* skip unwanted bytes */ + if ( pos > zip->pos ) + { + error = ft_gzip_file_skip_output( zip, (FT_ULong)( pos - zip->pos ) ); + if ( error ) + goto Exit; + } + + if ( count == 0 ) + goto Exit; + + /* now read the data */ + for (;;) + { + FT_ULong delta; + + + delta = (FT_ULong)( zip->limit - zip->cursor ); + if ( delta >= count ) + delta = count; + + FT_MEM_COPY( buffer, zip->cursor, delta ); + buffer += delta; + result += delta; + zip->cursor += delta; + zip->pos += delta; + + count -= delta; + if ( count == 0 ) + break; + + error = ft_gzip_file_fill_output( zip ); + if ( error ) + break; + } + + Exit: + return result; + } + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** G Z E M B E D D I N G S T R E A M *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + + static void + ft_gzip_stream_close( FT_Stream stream ) + { + FT_GZipFile zip = (FT_GZipFile)stream->descriptor.pointer; + FT_Memory memory = stream->memory; + + + if ( zip ) + { + /* finalize gzip file descriptor */ + ft_gzip_file_done( zip ); + + FT_FREE( zip ); + + stream->descriptor.pointer = NULL; + } + } + + + static FT_ULong + ft_gzip_stream_io( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_GZipFile zip = (FT_GZipFile)stream->descriptor.pointer; + + + return ft_gzip_file_io( zip, pos, buffer, count ); + } + + + static FT_ULong + ft_gzip_get_uncompressed_size( FT_Stream stream ) + { + FT_Error error; + FT_ULong old_pos; + FT_ULong result = 0; + + + old_pos = stream->pos; + if ( !FT_Stream_Seek( stream, stream->size - 4 ) ) + { + result = FT_Stream_ReadULong( stream, &error ); + if ( error ) + result = 0; + + (void)FT_Stream_Seek( stream, old_pos ); + } + + return result; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_OpenGzip( FT_Stream stream, + FT_Stream source ) + { + FT_Error error; + FT_Memory memory = source->memory; + FT_GZipFile zip = NULL; + + + /* + * check the header right now; this prevents allocating un-necessary + * objects when we don't need them + */ + error = ft_gzip_check_header( source ); + if ( error ) + goto Exit; + + FT_ZERO( stream ); + stream->memory = memory; + + if ( !FT_QNEW( zip ) ) + { + error = ft_gzip_file_init( zip, stream, source ); + if ( error ) + { + FT_FREE( zip ); + goto Exit; + } + + stream->descriptor.pointer = zip; + } + + /* + * We use the following trick to try to dramatically improve the + * performance while dealing with small files. If the original stream + * size is less than a certain threshold, we try to load the whole font + * file into memory. This saves us from using the 32KB buffer needed + * to inflate the file, plus the two 4KB intermediate input/output + * buffers used in the `FT_GZipFile' structure. + */ + { + FT_ULong zip_size = ft_gzip_get_uncompressed_size( source ); + + + if ( zip_size != 0 && zip_size < 40 * 1024 ) + { + FT_Byte* zip_buff = NULL; + + + if ( !FT_ALLOC( zip_buff, zip_size ) ) + { + FT_ULong count; + + + count = ft_gzip_file_io( zip, 0, zip_buff, zip_size ); + if ( count == zip_size ) + { + ft_gzip_file_done( zip ); + FT_FREE( zip ); + + stream->descriptor.pointer = NULL; + + stream->size = zip_size; + stream->pos = 0; + stream->base = zip_buff; + stream->read = NULL; + stream->close = ft_gzip_stream_close; + + goto Exit; + } + + ft_gzip_file_io( zip, 0, NULL, 0 ); + FT_FREE( zip_buff ); + } + error = Gzip_Err_Ok; + } + } + + stream->size = 0x7FFFFFFFL; /* don't know the real size! */ + stream->pos = 0; + stream->base = 0; + stream->read = ft_gzip_stream_io; + stream->close = ft_gzip_stream_close; + + Exit: + return error; + } + +#else /* !FT_CONFIG_OPTION_USE_ZLIB */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_OpenGzip( FT_Stream stream, + FT_Stream source ) + { + FT_UNUSED( stream ); + FT_UNUSED( source ); + + return Gzip_Err_Unimplemented_Feature; + } + +#endif /* !FT_CONFIG_OPTION_USE_ZLIB */ + + +/* END */ diff --git a/src/gzip/infblock.c b/src/gzip/infblock.c new file mode 100644 index 0000000..d6e2dc2 --- /dev/null +++ b/src/gzip/infblock.c @@ -0,0 +1,387 @@ +/* infblock.c -- interpret and process block types to last block + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "infblock.h" +#include "inftrees.h" +#include "infcodes.h" +#include "infutil.h" + + +/* simplify the use of the inflate_huft type with some defines */ +#define exop word.what.Exop +#define bits word.what.Bits + +/* Table for deflate from PKZIP's appnote.txt. */ +local const uInt border[] = { /* Order of the bit length code lengths */ + 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; + +/* + Notes beyond the 1.93a appnote.txt: + + 1. Distance pointers never point before the beginning of the output + stream. + 2. Distance pointers can point back across blocks, up to 32k away. + 3. There is an implied maximum of 7 bits for the bit length table and + 15 bits for the actual data. + 4. If only one code exists, then it is encoded using one bit. (Zero + would be more efficient, but perhaps a little confusing.) If two + codes exist, they are coded using one bit each (0 and 1). + 5. There is no way of sending zero distance codes--a dummy must be + sent if there are none. (History: a pre 2.0 version of PKZIP would + store blocks with no distance codes, but this was discovered to be + too harsh a criterion.) Valid only for 1.93a. 2.04c does allow + zero distance codes, which is sent as one code of zero bits in + length. + 6. There are up to 286 literal/length codes. Code 256 represents the + end-of-block. Note however that the static length tree defines + 288 codes just to fill out the Huffman codes. Codes 286 and 287 + cannot be used though, since there is no length base or extra bits + defined for them. Similarily, there are up to 30 distance codes. + However, static trees define 32 codes (all 5 bits) to fill out the + Huffman codes, but the last two had better not show up in the data. + 7. Unzip can check dynamic Huffman blocks for complete code sets. + The exception is that a single code would not be complete (see #4). + 8. The five bits following the block type is really the number of + literal codes sent minus 257. + 9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits + (1+6+6). Therefore, to output three times the length, you output + three codes (1+1+1), whereas to output four times the same length, + you only need two codes (1+3). Hmm. + 10. In the tree reconstruction algorithm, Code = Code + Increment + only if BitLength(i) is not zero. (Pretty obvious.) + 11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19) + 12. Note: length code 284 can represent 227-258, but length code 285 + really is 258. The last length deserves its own, short code + since it gets used a lot in very redundant files. The length + 258 is special since 258 - 3 (the min match length) is 255. + 13. The literal/length and distance code bit lengths are read as a + single stream of lengths. It is possible (and advantageous) for + a repeat code (16, 17, or 18) to go across the boundary between + the two sets of lengths. + */ + + +local void inflate_blocks_reset( /* s, z, c) */ +inflate_blocks_statef *s, +z_streamp z, +uLongf *c ) +{ + if (c != Z_NULL) + *c = s->check; + if (s->mode == BTREE || s->mode == DTREE) + ZFREE(z, s->sub.trees.blens); + if (s->mode == CODES) + inflate_codes_free(s->sub.decode.codes, z); + s->mode = TYPE; + s->bitk = 0; + s->bitb = 0; + s->read = s->write = s->window; + if (s->checkfn != Z_NULL) + z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0); + Tracev((stderr, "inflate: blocks reset\n")); +} + + +local inflate_blocks_statef *inflate_blocks_new( /* z, c, w) */ +z_streamp z, +check_func c, +uInt w ) +{ + inflate_blocks_statef *s; + + if ((s = (inflate_blocks_statef *)ZALLOC + (z,1,sizeof(struct inflate_blocks_state))) == Z_NULL) + return s; + if ((s->hufts = + (inflate_huft *)ZALLOC(z, sizeof(inflate_huft), MANY)) == Z_NULL) + { + ZFREE(z, s); + return Z_NULL; + } + if ((s->window = (Bytef *)ZALLOC(z, 1, w)) == Z_NULL) + { + ZFREE(z, s->hufts); + ZFREE(z, s); + return Z_NULL; + } + s->end = s->window + w; + s->checkfn = c; + s->mode = TYPE; + Tracev((stderr, "inflate: blocks allocated\n")); + inflate_blocks_reset(s, z, Z_NULL); + return s; +} + + +local int inflate_blocks( /* s, z, r) */ +inflate_blocks_statef *s, +z_streamp z, +int r ) +{ + uInt t; /* temporary storage */ + uLong b; /* bit buffer */ + uInt k; /* bits in bit buffer */ + Bytef *p; /* input data pointer */ + uInt n; /* bytes available there */ + Bytef *q; /* output window write pointer */ + uInt m; /* bytes to end of window or read pointer */ + + /* copy input/output information to locals (UPDATE macro restores) */ + LOAD + + /* process input based on current state */ + while (1) switch (s->mode) + { + case TYPE: + NEEDBITS(3) + t = (uInt)b & 7; + s->last = t & 1; + switch (t >> 1) + { + case 0: /* stored */ + Tracev((stderr, "inflate: stored block%s\n", + s->last ? " (last)" : "")); + DUMPBITS(3) + t = k & 7; /* go to byte boundary */ + DUMPBITS(t) + s->mode = LENS; /* get length of stored block */ + break; + case 1: /* fixed */ + Tracev((stderr, "inflate: fixed codes block%s\n", + s->last ? " (last)" : "")); + { + uInt bl, bd; + inflate_huft *tl, *td; + + inflate_trees_fixed(&bl, &bd, (const inflate_huft**)&tl, + (const inflate_huft**)&td, z); + s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z); + if (s->sub.decode.codes == Z_NULL) + { + r = Z_MEM_ERROR; + LEAVE + } + } + DUMPBITS(3) + s->mode = CODES; + break; + case 2: /* dynamic */ + Tracev((stderr, "inflate: dynamic codes block%s\n", + s->last ? " (last)" : "")); + DUMPBITS(3) + s->mode = TABLE; + break; + case 3: /* illegal */ + DUMPBITS(3) + s->mode = BAD; + z->msg = (char*)"invalid block type"; + r = Z_DATA_ERROR; + LEAVE + } + break; + case LENS: + NEEDBITS(32) + if ((((~b) >> 16) & 0xffff) != (b & 0xffff)) + { + s->mode = BAD; + z->msg = (char*)"invalid stored block lengths"; + r = Z_DATA_ERROR; + LEAVE + } + s->sub.left = (uInt)b & 0xffff; + b = k = 0; /* dump bits */ + Tracev((stderr, "inflate: stored length %u\n", s->sub.left)); + s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE); + break; + case STORED: + if (n == 0) + LEAVE + NEEDOUT + t = s->sub.left; + if (t > n) t = n; + if (t > m) t = m; + zmemcpy(q, p, t); + p += t; n -= t; + q += t; m -= t; + if ((s->sub.left -= t) != 0) + break; + Tracev((stderr, "inflate: stored end, %lu total out\n", + z->total_out + (q >= s->read ? q - s->read : + (s->end - s->read) + (q - s->window)))); + s->mode = s->last ? DRY : TYPE; + break; + case TABLE: + NEEDBITS(14) + s->sub.trees.table = t = (uInt)b & 0x3fff; +#ifndef PKZIP_BUG_WORKAROUND + if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29) + { + s->mode = BAD; + z->msg = (char*)"too many length or distance symbols"; + r = Z_DATA_ERROR; + LEAVE + } +#endif + t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f); + if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL) + { + r = Z_MEM_ERROR; + LEAVE + } + DUMPBITS(14) + s->sub.trees.index = 0; + Tracev((stderr, "inflate: table sizes ok\n")); + s->mode = BTREE; + case BTREE: + while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10)) + { + NEEDBITS(3) + s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7; + DUMPBITS(3) + } + while (s->sub.trees.index < 19) + s->sub.trees.blens[border[s->sub.trees.index++]] = 0; + s->sub.trees.bb = 7; + t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb, + &s->sub.trees.tb, s->hufts, z); + if (t != Z_OK) + { + r = t; + if (r == Z_DATA_ERROR) + { + ZFREE(z, s->sub.trees.blens); + s->mode = BAD; + } + LEAVE + } + s->sub.trees.index = 0; + Tracev((stderr, "inflate: bits tree ok\n")); + s->mode = DTREE; + case DTREE: + while (t = s->sub.trees.table, + s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f)) + { + inflate_huft *h; + uInt i, j, c; + + t = s->sub.trees.bb; + NEEDBITS(t) + h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]); + t = h->bits; + c = h->base; + if (c < 16) + { + DUMPBITS(t) + s->sub.trees.blens[s->sub.trees.index++] = c; + } + else /* c == 16..18 */ + { + i = c == 18 ? 7 : c - 14; + j = c == 18 ? 11 : 3; + NEEDBITS(t + i) + DUMPBITS(t) + j += (uInt)b & inflate_mask[i]; + DUMPBITS(i) + i = s->sub.trees.index; + t = s->sub.trees.table; + if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) || + (c == 16 && i < 1)) + { + ZFREE(z, s->sub.trees.blens); + s->mode = BAD; + z->msg = (char*)"invalid bit length repeat"; + r = Z_DATA_ERROR; + LEAVE + } + c = c == 16 ? s->sub.trees.blens[i - 1] : 0; + do { + s->sub.trees.blens[i++] = c; + } while (--j); + s->sub.trees.index = i; + } + } + s->sub.trees.tb = Z_NULL; + { + uInt bl, bd; + inflate_huft *tl, *td; + inflate_codes_statef *c; + + bl = 9; /* must be <= 9 for lookahead assumptions */ + bd = 6; /* must be <= 9 for lookahead assumptions */ + t = s->sub.trees.table; + t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f), + s->sub.trees.blens, &bl, &bd, &tl, &td, + s->hufts, z); + if (t != Z_OK) + { + if (t == (uInt)Z_DATA_ERROR) + { + ZFREE(z, s->sub.trees.blens); + s->mode = BAD; + } + r = t; + LEAVE + } + Tracev((stderr, "inflate: trees ok\n")); + if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL) + { + r = Z_MEM_ERROR; + LEAVE + } + s->sub.decode.codes = c; + } + ZFREE(z, s->sub.trees.blens); + s->mode = CODES; + case CODES: + UPDATE + if ((r = inflate_codes(s, z, r)) != Z_STREAM_END) + return inflate_flush(s, z, r); + r = Z_OK; + inflate_codes_free(s->sub.decode.codes, z); + LOAD + Tracev((stderr, "inflate: codes end, %lu total out\n", + z->total_out + (q >= s->read ? q - s->read : + (s->end - s->read) + (q - s->window)))); + if (!s->last) + { + s->mode = TYPE; + break; + } + s->mode = DRY; + case DRY: + FLUSH + if (s->read != s->write) + LEAVE + s->mode = DONE; + case DONE: + r = Z_STREAM_END; + LEAVE + case BAD: + r = Z_DATA_ERROR; + LEAVE + default: + r = Z_STREAM_ERROR; + LEAVE + } +#ifdef NEED_DUMMY_RETURN + return 0; +#endif +} + + +local int inflate_blocks_free( /* s, z) */ +inflate_blocks_statef *s, +z_streamp z ) +{ + inflate_blocks_reset(s, z, Z_NULL); + ZFREE(z, s->window); + ZFREE(z, s->hufts); + ZFREE(z, s); + Tracev((stderr, "inflate: blocks freed\n")); + return Z_OK; +} + + diff --git a/src/gzip/infblock.h b/src/gzip/infblock.h new file mode 100644 index 0000000..c2535a1 --- /dev/null +++ b/src/gzip/infblock.h @@ -0,0 +1,36 @@ +/* infblock.h -- header to use infblock.c + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +#ifndef _INFBLOCK_H +#define _INFBLOCK_H + +struct inflate_blocks_state; +typedef struct inflate_blocks_state FAR inflate_blocks_statef; + +local inflate_blocks_statef * inflate_blocks_new OF(( + z_streamp z, + check_func c, /* check function */ + uInt w)); /* window size */ + +local int inflate_blocks OF(( + inflate_blocks_statef *, + z_streamp , + int)); /* initial return code */ + +local void inflate_blocks_reset OF(( + inflate_blocks_statef *, + z_streamp , + uLongf *)); /* check value on output */ + +local int inflate_blocks_free OF(( + inflate_blocks_statef *, + z_streamp)); + +#endif /* _INFBLOCK_H */ diff --git a/src/gzip/infcodes.c b/src/gzip/infcodes.c new file mode 100644 index 0000000..f7bfd58 --- /dev/null +++ b/src/gzip/infcodes.c @@ -0,0 +1,250 @@ +/* infcodes.c -- process literals and length/distance pairs + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "inftrees.h" +#include "infblock.h" +#include "infcodes.h" +#include "infutil.h" + +/* simplify the use of the inflate_huft type with some defines */ +#define exop word.what.Exop +#define bits word.what.Bits + +typedef enum { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ + START, /* x: set up for LEN */ + LEN, /* i: get length/literal/eob next */ + LENEXT, /* i: getting length extra (have base) */ + DIST, /* i: get distance next */ + DISTEXT, /* i: getting distance extra */ + COPY, /* o: copying bytes in window, waiting for space */ + LIT, /* o: got literal, waiting for output space */ + WASH, /* o: got eob, possibly still output waiting */ + END, /* x: got eob and all data flushed */ + BADCODE} /* x: got error */ +inflate_codes_mode; + +/* inflate codes private state */ +struct inflate_codes_state { + + /* mode */ + inflate_codes_mode mode; /* current inflate_codes mode */ + + /* mode dependent information */ + uInt len; + union { + struct { + inflate_huft *tree; /* pointer into tree */ + uInt need; /* bits needed */ + } code; /* if LEN or DIST, where in tree */ + uInt lit; /* if LIT, literal */ + struct { + uInt get; /* bits to get for extra */ + uInt dist; /* distance back to copy from */ + } copy; /* if EXT or COPY, where and how much */ + } sub; /* submode */ + + /* mode independent information */ + Byte lbits; /* ltree bits decoded per branch */ + Byte dbits; /* dtree bits decoder per branch */ + inflate_huft *ltree; /* literal/length/eob tree */ + inflate_huft *dtree; /* distance tree */ + +}; + + +local inflate_codes_statef *inflate_codes_new( /* bl, bd, tl, td, z) */ +uInt bl, uInt bd, +inflate_huft *tl, +inflate_huft *td, /* need separate declaration for Borland C++ */ +z_streamp z ) +{ + inflate_codes_statef *c; + + if ((c = (inflate_codes_statef *) + ZALLOC(z,1,sizeof(struct inflate_codes_state))) != Z_NULL) + { + c->mode = START; + c->lbits = (Byte)bl; + c->dbits = (Byte)bd; + c->ltree = tl; + c->dtree = td; + Tracev((stderr, "inflate: codes new\n")); + } + return c; +} + + +local int inflate_codes( /* s, z, r) */ +inflate_blocks_statef *s, +z_streamp z, +int r ) +{ + uInt j; /* temporary storage */ + inflate_huft *t; /* temporary pointer */ + uInt e; /* extra bits or operation */ + uLong b; /* bit buffer */ + uInt k; /* bits in bit buffer */ + Bytef *p; /* input data pointer */ + uInt n; /* bytes available there */ + Bytef *q; /* output window write pointer */ + uInt m; /* bytes to end of window or read pointer */ + Bytef *f; /* pointer to copy strings from */ + inflate_codes_statef *c = s->sub.decode.codes; /* codes state */ + + /* copy input/output information to locals (UPDATE macro restores) */ + LOAD + + /* process input and output based on current state */ + while (1) switch (c->mode) + { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ + case START: /* x: set up for LEN */ +#ifndef SLOW + if (m >= 258 && n >= 10) + { + UPDATE + r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z); + LOAD + if (r != Z_OK) + { + c->mode = r == Z_STREAM_END ? WASH : BADCODE; + break; + } + } +#endif /* !SLOW */ + c->sub.code.need = c->lbits; + c->sub.code.tree = c->ltree; + c->mode = LEN; + case LEN: /* i: get length/literal/eob next */ + j = c->sub.code.need; + NEEDBITS(j) + t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); + DUMPBITS(t->bits) + e = (uInt)(t->exop); + if (e == 0) /* literal */ + { + c->sub.lit = t->base; + Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? + "inflate: literal '%c'\n" : + "inflate: literal 0x%02x\n", t->base)); + c->mode = LIT; + break; + } + if (e & 16) /* length */ + { + c->sub.copy.get = e & 15; + c->len = t->base; + c->mode = LENEXT; + break; + } + if ((e & 64) == 0) /* next table */ + { + c->sub.code.need = e; + c->sub.code.tree = t + t->base; + break; + } + if (e & 32) /* end of block */ + { + Tracevv((stderr, "inflate: end of block\n")); + c->mode = WASH; + break; + } + c->mode = BADCODE; /* invalid code */ + z->msg = (char*)"invalid literal/length code"; + r = Z_DATA_ERROR; + LEAVE + case LENEXT: /* i: getting length extra (have base) */ + j = c->sub.copy.get; + NEEDBITS(j) + c->len += (uInt)b & inflate_mask[j]; + DUMPBITS(j) + c->sub.code.need = c->dbits; + c->sub.code.tree = c->dtree; + Tracevv((stderr, "inflate: length %u\n", c->len)); + c->mode = DIST; + case DIST: /* i: get distance next */ + j = c->sub.code.need; + NEEDBITS(j) + t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); + DUMPBITS(t->bits) + e = (uInt)(t->exop); + if (e & 16) /* distance */ + { + c->sub.copy.get = e & 15; + c->sub.copy.dist = t->base; + c->mode = DISTEXT; + break; + } + if ((e & 64) == 0) /* next table */ + { + c->sub.code.need = e; + c->sub.code.tree = t + t->base; + break; + } + c->mode = BADCODE; /* invalid code */ + z->msg = (char*)"invalid distance code"; + r = Z_DATA_ERROR; + LEAVE + case DISTEXT: /* i: getting distance extra */ + j = c->sub.copy.get; + NEEDBITS(j) + c->sub.copy.dist += (uInt)b & inflate_mask[j]; + DUMPBITS(j) + Tracevv((stderr, "inflate: distance %u\n", c->sub.copy.dist)); + c->mode = COPY; + case COPY: /* o: copying bytes in window, waiting for space */ + f = q - c->sub.copy.dist; + while (f < s->window) /* modulo window size-"while" instead */ + f += s->end - s->window; /* of "if" handles invalid distances */ + while (c->len) + { + NEEDOUT + OUTBYTE(*f++) + if (f == s->end) + f = s->window; + c->len--; + } + c->mode = START; + break; + case LIT: /* o: got literal, waiting for output space */ + NEEDOUT + OUTBYTE(c->sub.lit) + c->mode = START; + break; + case WASH: /* o: got eob, possibly more output */ + if (k > 7) /* return unused byte, if any */ + { + Assert(k < 16, "inflate_codes grabbed too many bytes") + k -= 8; + n++; + p--; /* can always return one */ + } + FLUSH + if (s->read != s->write) + LEAVE + c->mode = END; + case END: + r = Z_STREAM_END; + LEAVE + case BADCODE: /* x: got error */ + r = Z_DATA_ERROR; + LEAVE + default: + r = Z_STREAM_ERROR; + LEAVE + } +#ifdef NEED_DUMMY_RETURN + return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ +#endif +} + + +local void inflate_codes_free( /* c, z) */ +inflate_codes_statef *c, +z_streamp z ) +{ + ZFREE(z, c); + Tracev((stderr, "inflate: codes free\n")); +} diff --git a/src/gzip/infcodes.h b/src/gzip/infcodes.h new file mode 100644 index 0000000..154d7f8 --- /dev/null +++ b/src/gzip/infcodes.h @@ -0,0 +1,31 @@ +/* infcodes.h -- header to use infcodes.c + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +#ifndef _INFCODES_H +#define _INFCODES_H + +struct inflate_codes_state; +typedef struct inflate_codes_state FAR inflate_codes_statef; + +local inflate_codes_statef *inflate_codes_new OF(( + uInt, uInt, + inflate_huft *, inflate_huft *, + z_streamp )); + +local int inflate_codes OF(( + inflate_blocks_statef *, + z_streamp , + int)); + +local void inflate_codes_free OF(( + inflate_codes_statef *, + z_streamp )); + +#endif /* _INFCODES_H */ diff --git a/src/gzip/inffixed.h b/src/gzip/inffixed.h new file mode 100644 index 0000000..4d4760e --- /dev/null +++ b/src/gzip/inffixed.h @@ -0,0 +1,151 @@ +/* inffixed.h -- table for decoding fixed codes + * Generated automatically by the maketree.c program + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +local const uInt fixed_bl = 9; +local const uInt fixed_bd = 5; +local const inflate_huft fixed_tl[] = { + {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115}, + {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},192}, + {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},160}, + {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},224}, + {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},144}, + {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},208}, + {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},176}, + {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},240}, + {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227}, + {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},200}, + {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},168}, + {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},232}, + {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},152}, + {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},216}, + {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},184}, + {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},248}, + {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163}, + {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},196}, + {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},164}, + {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},228}, + {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},148}, + {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},212}, + {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},180}, + {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},244}, + {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0}, + {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},204}, + {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},172}, + {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},236}, + {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},156}, + {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},220}, + {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},188}, + {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},252}, + {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131}, + {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},194}, + {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},162}, + {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},226}, + {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},146}, + {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},210}, + {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},178}, + {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},242}, + {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258}, + {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},202}, + {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},170}, + {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},234}, + {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},154}, + {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},218}, + {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},186}, + {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},250}, + {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195}, + {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},198}, + {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},166}, + {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},230}, + {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},150}, + {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},214}, + {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},182}, + {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},246}, + {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0}, + {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},206}, + {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},174}, + {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},238}, + {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},158}, + {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},222}, + {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},190}, + {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},254}, + {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115}, + {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},193}, + {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},161}, + {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},225}, + {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},145}, + {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},209}, + {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},177}, + {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},241}, + {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227}, + {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},201}, + {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},169}, + {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},233}, + {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},153}, + {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},217}, + {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},185}, + {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},249}, + {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163}, + {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},197}, + {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},165}, + {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},229}, + {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},149}, + {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},213}, + {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},181}, + {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},245}, + {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0}, + {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},205}, + {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},173}, + {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},237}, + {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},157}, + {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},221}, + {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},189}, + {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},253}, + {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131}, + {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},195}, + {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},163}, + {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},227}, + {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},147}, + {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},211}, + {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},179}, + {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},243}, + {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258}, + {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},203}, + {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},171}, + {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},235}, + {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},155}, + {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},219}, + {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},187}, + {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},251}, + {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195}, + {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},199}, + {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},167}, + {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},231}, + {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},151}, + {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},215}, + {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},183}, + {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},247}, + {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0}, + {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},207}, + {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},175}, + {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},239}, + {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},159}, + {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},223}, + {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},191}, + {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},255} + }; +local const inflate_huft fixed_td[] = { + {{{80,5}},1}, {{{87,5}},257}, {{{83,5}},17}, {{{91,5}},4097}, + {{{81,5}},5}, {{{89,5}},1025}, {{{85,5}},65}, {{{93,5}},16385}, + {{{80,5}},3}, {{{88,5}},513}, {{{84,5}},33}, {{{92,5}},8193}, + {{{82,5}},9}, {{{90,5}},2049}, {{{86,5}},129}, {{{192,5}},24577}, + {{{80,5}},2}, {{{87,5}},385}, {{{83,5}},25}, {{{91,5}},6145}, + {{{81,5}},7}, {{{89,5}},1537}, {{{85,5}},97}, {{{93,5}},24577}, + {{{80,5}},4}, {{{88,5}},769}, {{{84,5}},49}, {{{92,5}},12289}, + {{{82,5}},13}, {{{90,5}},3073}, {{{86,5}},193}, {{{192,5}},24577} + }; diff --git a/src/gzip/inflate.c b/src/gzip/inflate.c new file mode 100644 index 0000000..8877fa3 --- /dev/null +++ b/src/gzip/inflate.c @@ -0,0 +1,273 @@ +/* inflate.c -- zlib interface to inflate modules + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "infblock.h" + +#define DONE INFLATE_DONE +#define BAD INFLATE_BAD + +typedef enum { + METHOD, /* waiting for method byte */ + FLAG, /* waiting for flag byte */ + DICT4, /* four dictionary check bytes to go */ + DICT3, /* three dictionary check bytes to go */ + DICT2, /* two dictionary check bytes to go */ + DICT1, /* one dictionary check byte to go */ + DICT0, /* waiting for inflateSetDictionary */ + BLOCKS, /* decompressing blocks */ + CHECK4, /* four check bytes to go */ + CHECK3, /* three check bytes to go */ + CHECK2, /* two check bytes to go */ + CHECK1, /* one check byte to go */ + DONE, /* finished check, done */ + BAD} /* got an error--stay here */ +inflate_mode; + +/* inflate private state */ +struct internal_state { + + /* mode */ + inflate_mode mode; /* current inflate mode */ + + /* mode dependent information */ + union { + uInt method; /* if FLAGS, method byte */ + struct { + uLong was; /* computed check value */ + uLong need; /* stream check value */ + } check; /* if CHECK, check values to compare */ + uInt marker; /* if BAD, inflateSync's marker bytes count */ + } sub; /* submode */ + + /* mode independent information */ + int nowrap; /* flag for no wrapper */ + uInt wbits; /* log2(window size) (8..15, defaults to 15) */ + inflate_blocks_statef + *blocks; /* current inflate_blocks state */ + +}; + + +ZEXPORT(int) inflateReset( /* z) */ +z_streamp z ) +{ + if (z == Z_NULL || z->state == Z_NULL) + return Z_STREAM_ERROR; + z->total_in = z->total_out = 0; + z->msg = Z_NULL; + z->state->mode = z->state->nowrap ? BLOCKS : METHOD; + inflate_blocks_reset(z->state->blocks, z, Z_NULL); + Tracev((stderr, "inflate: reset\n")); + return Z_OK; +} + + +ZEXPORT(int) inflateEnd( /* z) */ +z_streamp z ) +{ + if (z == Z_NULL || z->state == Z_NULL || z->zfree == Z_NULL) + return Z_STREAM_ERROR; + if (z->state->blocks != Z_NULL) + inflate_blocks_free(z->state->blocks, z); + ZFREE(z, z->state); + z->state = Z_NULL; + Tracev((stderr, "inflate: end\n")); + return Z_OK; +} + + +ZEXPORT(int) inflateInit2_( /* z, w, version, stream_size) */ +z_streamp z, +int w, +const char *version, +int stream_size ) +{ + if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || + stream_size != sizeof(z_stream)) + return Z_VERSION_ERROR; + + /* initialize state */ + if (z == Z_NULL) + return Z_STREAM_ERROR; + z->msg = Z_NULL; + if (z->zalloc == Z_NULL) + { + z->zalloc = zcalloc; + z->opaque = (voidpf)0; + } + if (z->zfree == Z_NULL) z->zfree = zcfree; + if ((z->state = (struct internal_state FAR *) + ZALLOC(z,1,sizeof(struct internal_state))) == Z_NULL) + return Z_MEM_ERROR; + z->state->blocks = Z_NULL; + + /* handle undocumented nowrap option (no zlib header or check) */ + z->state->nowrap = 0; + if (w < 0) + { + w = - w; + z->state->nowrap = 1; + } + + /* set window size */ + if (w < 8 || w > 15) + { + inflateEnd(z); + return Z_STREAM_ERROR; + } + z->state->wbits = (uInt)w; + + /* create inflate_blocks state */ + if ((z->state->blocks = + inflate_blocks_new(z, z->state->nowrap ? Z_NULL : adler32, (uInt)1 << w)) + == Z_NULL) + { + inflateEnd(z); + return Z_MEM_ERROR; + } + Tracev((stderr, "inflate: allocated\n")); + + /* reset state */ + inflateReset(z); + return Z_OK; +} + + + +#undef NEEDBYTE +#define NEEDBYTE {if(z->avail_in==0)return r;r=f;} + +#undef NEXTBYTE +#define NEXTBYTE (z->avail_in--,z->total_in++,*z->next_in++) + + +ZEXPORT(int) inflate( /* z, f) */ +z_streamp z, +int f ) +{ + int r; + uInt b; + + if (z == Z_NULL || z->state == Z_NULL || z->next_in == Z_NULL) + return Z_STREAM_ERROR; + f = f == Z_FINISH ? Z_BUF_ERROR : Z_OK; + r = Z_BUF_ERROR; + while (1) switch (z->state->mode) + { + case METHOD: + NEEDBYTE + if (((z->state->sub.method = NEXTBYTE) & 0xf) != Z_DEFLATED) + { + z->state->mode = BAD; + z->msg = (char*)"unknown compression method"; + z->state->sub.marker = 5; /* can't try inflateSync */ + break; + } + if ((z->state->sub.method >> 4) + 8 > z->state->wbits) + { + z->state->mode = BAD; + z->msg = (char*)"invalid window size"; + z->state->sub.marker = 5; /* can't try inflateSync */ + break; + } + z->state->mode = FLAG; + case FLAG: + NEEDBYTE + b = NEXTBYTE; + if (((z->state->sub.method << 8) + b) % 31) + { + z->state->mode = BAD; + z->msg = (char*)"incorrect header check"; + z->state->sub.marker = 5; /* can't try inflateSync */ + break; + } + Tracev((stderr, "inflate: zlib header ok\n")); + if (!(b & PRESET_DICT)) + { + z->state->mode = BLOCKS; + break; + } + z->state->mode = DICT4; + case DICT4: + NEEDBYTE + z->state->sub.check.need = (uLong)NEXTBYTE << 24; + z->state->mode = DICT3; + case DICT3: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE << 16; + z->state->mode = DICT2; + case DICT2: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE << 8; + z->state->mode = DICT1; + case DICT1: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE; + z->adler = z->state->sub.check.need; + z->state->mode = DICT0; + return Z_NEED_DICT; + case DICT0: + z->state->mode = BAD; + z->msg = (char*)"need dictionary"; + z->state->sub.marker = 0; /* can try inflateSync */ + return Z_STREAM_ERROR; + case BLOCKS: + r = inflate_blocks(z->state->blocks, z, r); + if (r == Z_DATA_ERROR) + { + z->state->mode = BAD; + z->state->sub.marker = 0; /* can try inflateSync */ + break; + } + if (r == Z_OK) + r = f; + if (r != Z_STREAM_END) + return r; + r = f; + inflate_blocks_reset(z->state->blocks, z, &z->state->sub.check.was); + if (z->state->nowrap) + { + z->state->mode = DONE; + break; + } + z->state->mode = CHECK4; + case CHECK4: + NEEDBYTE + z->state->sub.check.need = (uLong)NEXTBYTE << 24; + z->state->mode = CHECK3; + case CHECK3: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE << 16; + z->state->mode = CHECK2; + case CHECK2: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE << 8; + z->state->mode = CHECK1; + case CHECK1: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE; + + if (z->state->sub.check.was != z->state->sub.check.need) + { + z->state->mode = BAD; + z->msg = (char*)"incorrect data check"; + z->state->sub.marker = 5; /* can't try inflateSync */ + break; + } + Tracev((stderr, "inflate: zlib check ok\n")); + z->state->mode = DONE; + case DONE: + return Z_STREAM_END; + case BAD: + return Z_DATA_ERROR; + default: + return Z_STREAM_ERROR; + } +#ifdef NEED_DUMMY_RETURN + return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ +#endif +} + diff --git a/src/gzip/inftrees.c b/src/gzip/inftrees.c new file mode 100644 index 0000000..ef53652 --- /dev/null +++ b/src/gzip/inftrees.c @@ -0,0 +1,468 @@ +/* inftrees.c -- generate Huffman trees for efficient decoding + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "inftrees.h" + +#if !defined(BUILDFIXED) && !defined(STDC) +# define BUILDFIXED /* non ANSI compilers may not accept inffixed.h */ +#endif + + +#if 0 +local const char inflate_copyright[] = + " inflate 1.1.4 Copyright 1995-2002 Mark Adler "; +#endif +/* + If you use the zlib library in a product, an acknowledgment is welcome + in the documentation of your product. If for some reason you cannot + include such an acknowledgment, I would appreciate that you keep this + copyright string in the executable of your product. + */ + +/* simplify the use of the inflate_huft type with some defines */ +#define exop word.what.Exop +#define bits word.what.Bits + + +local int huft_build OF(( + uIntf *, /* code lengths in bits */ + uInt, /* number of codes */ + uInt, /* number of "simple" codes */ + const uIntf *, /* list of base values for non-simple codes */ + const uIntf *, /* list of extra bits for non-simple codes */ + inflate_huft * FAR*,/* result: starting table */ + uIntf *, /* maximum lookup bits (returns actual) */ + inflate_huft *, /* space for trees */ + uInt *, /* hufts used in space */ + uIntf * )); /* space for values */ + +/* Tables for deflate from PKZIP's appnote.txt. */ +local const uInt cplens[31] = { /* Copy lengths for literal codes 257..285 */ + 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, + 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; + /* see note #13 above about 258 */ +local const uInt cplext[31] = { /* Extra bits for literal codes 257..285 */ + 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, + 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 112, 112}; /* 112==invalid */ +local const uInt cpdist[30] = { /* Copy offsets for distance codes 0..29 */ + 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, + 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, + 8193, 12289, 16385, 24577}; +local const uInt cpdext[30] = { /* Extra bits for distance codes */ + 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, + 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, + 12, 12, 13, 13}; + +/* + Huffman code decoding is performed using a multi-level table lookup. + The fastest way to decode is to simply build a lookup table whose + size is determined by the longest code. However, the time it takes + to build this table can also be a factor if the data being decoded + is not very long. The most common codes are necessarily the + shortest codes, so those codes dominate the decoding time, and hence + the speed. The idea is you can have a shorter table that decodes the + shorter, more probable codes, and then point to subsidiary tables for + the longer codes. The time it costs to decode the longer codes is + then traded against the time it takes to make longer tables. + + This results of this trade are in the variables lbits and dbits + below. lbits is the number of bits the first level table for literal/ + length codes can decode in one step, and dbits is the same thing for + the distance codes. Subsequent tables are also less than or equal to + those sizes. These values may be adjusted either when all of the + codes are shorter than that, in which case the longest code length in + bits is used, or when the shortest code is *longer* than the requested + table size, in which case the length of the shortest code in bits is + used. + + There are two different values for the two tables, since they code a + different number of possibilities each. The literal/length table + codes 286 possible values, or in a flat code, a little over eight + bits. The distance table codes 30 possible values, or a little less + than five bits, flat. The optimum values for speed end up being + about one bit more than those, so lbits is 8+1 and dbits is 5+1. + The optimum values may differ though from machine to machine, and + possibly even between compilers. Your mileage may vary. + */ + + +/* If BMAX needs to be larger than 16, then h and x[] should be uLong. */ +#define BMAX 15 /* maximum bit length of any code */ + +local int huft_build( /* b, n, s, d, e, t, m, hp, hn, v) */ +uIntf *b, /* code lengths in bits (all assumed <= BMAX) */ +uInt n, /* number of codes (assumed <= 288) */ +uInt s, /* number of simple-valued codes (0..s-1) */ +const uIntf *d, /* list of base values for non-simple codes */ +const uIntf *e, /* list of extra bits for non-simple codes */ +inflate_huft * FAR *t, /* result: starting table */ +uIntf *m, /* maximum lookup bits, returns actual */ +inflate_huft *hp, /* space for trees */ +uInt *hn, /* hufts used in space */ +uIntf *v /* working area: values in order of bit length */ +/* Given a list of code lengths and a maximum table size, make a set of + tables to decode that set of codes. Return Z_OK on success, Z_BUF_ERROR + if the given code set is incomplete (the tables are still built in this + case), or Z_DATA_ERROR if the input is invalid. */ +) +{ + + uInt a; /* counter for codes of length k */ + uInt c[BMAX+1]; /* bit length count table */ + uInt f; /* i repeats in table every f entries */ + int g; /* maximum code length */ + int h; /* table level */ + register uInt i; /* counter, current code */ + register uInt j; /* counter */ + register int k; /* number of bits in current code */ + int l; /* bits per table (returned in m) */ + uInt mask; /* (1 << w) - 1, to avoid cc -O bug on HP */ + register uIntf *p; /* pointer into c[], b[], or v[] */ + inflate_huft *q; /* points to current table */ + struct inflate_huft_s r; /* table entry for structure assignment */ + inflate_huft *u[BMAX]; /* table stack */ + register int w; /* bits before this table == (l * h) */ + uInt x[BMAX+1]; /* bit offsets, then code stack */ + uIntf *xp; /* pointer into x */ + int y; /* number of dummy codes added */ + uInt z; /* number of entries in current table */ + + + /* Make compiler happy */ + r.base = 0; + + /* Generate counts for each bit length */ + p = c; +#define C0 *p++ = 0; +#define C2 C0 C0 C0 C0 +#define C4 C2 C2 C2 C2 + C4 /* clear c[]--assume BMAX+1 is 16 */ + p = b; i = n; + do { + c[*p++]++; /* assume all entries <= BMAX */ + } while (--i); + if (c[0] == n) /* null input--all zero length codes */ + { + *t = (inflate_huft *)Z_NULL; + *m = 0; + return Z_OK; + } + + + /* Find minimum and maximum length, bound *m by those */ + l = *m; + for (j = 1; j <= BMAX; j++) + if (c[j]) + break; + k = j; /* minimum code length */ + if ((uInt)l < j) + l = j; + for (i = BMAX; i; i--) + if (c[i]) + break; + g = i; /* maximum code length */ + if ((uInt)l > i) + l = i; + *m = l; + + + /* Adjust last length count to fill out codes, if needed */ + for (y = 1 << j; j < i; j++, y <<= 1) + if ((y -= c[j]) < 0) + return Z_DATA_ERROR; + if ((y -= c[i]) < 0) + return Z_DATA_ERROR; + c[i] += y; + + + /* Generate starting offsets into the value table for each length */ + x[1] = j = 0; + p = c + 1; xp = x + 2; + while (--i) { /* note that i == g from above */ + *xp++ = (j += *p++); + } + + + /* Make a table of values in order of bit lengths */ + p = b; i = 0; + do { + if ((j = *p++) != 0) + v[x[j]++] = i; + } while (++i < n); + n = x[g]; /* set n to length of v */ + + + /* Generate the Huffman codes and for each, make the table entries */ + x[0] = i = 0; /* first Huffman code is zero */ + p = v; /* grab values in bit order */ + h = -1; /* no tables yet--level -1 */ + w = -l; /* bits decoded == (l * h) */ + u[0] = (inflate_huft *)Z_NULL; /* just to keep compilers happy */ + q = (inflate_huft *)Z_NULL; /* ditto */ + z = 0; /* ditto */ + + /* go through the bit lengths (k already is bits in shortest code) */ + for (; k <= g; k++) + { + a = c[k]; + while (a--) + { + /* here i is the Huffman code of length k bits for value *p */ + /* make tables up to required level */ + while (k > w + l) + { + h++; + w += l; /* previous table always l bits */ + + /* compute minimum size table less than or equal to l bits */ + z = g - w; + z = z > (uInt)l ? (uInt)l : z; /* table size upper limit */ + if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */ + { /* too few codes for k-w bit table */ + f -= a + 1; /* deduct codes from patterns left */ + xp = c + k; + if (j < z) + while (++j < z) /* try smaller tables up to z bits */ + { + if ((f <<= 1) <= *++xp) + break; /* enough codes to use up j bits */ + f -= *xp; /* else deduct codes from patterns */ + } + } + z = 1 << j; /* table entries for j-bit table */ + + /* allocate new table */ + if (*hn + z > MANY) /* (note: doesn't matter for fixed) */ + return Z_DATA_ERROR; /* overflow of MANY */ + u[h] = q = hp + *hn; + *hn += z; + + /* connect to last table, if there is one */ + if (h) + { + x[h] = i; /* save pattern for backing up */ + r.bits = (Byte)l; /* bits to dump before this table */ + r.exop = (Byte)j; /* bits in this table */ + j = i >> (w - l); + r.base = (uInt)(q - u[h-1] - j); /* offset to this table */ + u[h-1][j] = r; /* connect to last table */ + } + else + *t = q; /* first table is returned result */ + } + + /* set up table entry in r */ + r.bits = (Byte)(k - w); + if (p >= v + n) + r.exop = 128 + 64; /* out of values--invalid code */ + else if (*p < s) + { + r.exop = (Byte)(*p < 256 ? 0 : 32 + 64); /* 256 is end-of-block */ + r.base = *p++; /* simple code is just the value */ + } + else + { + r.exop = (Byte)(e[*p - s] + 16 + 64);/* non-simple--look up in lists */ + r.base = d[*p++ - s]; + } + + /* fill code-like entries with r */ + f = 1 << (k - w); + for (j = i >> w; j < z; j += f) + q[j] = r; + + /* backwards increment the k-bit code i */ + for (j = 1 << (k - 1); i & j; j >>= 1) + i ^= j; + i ^= j; + + /* backup over finished tables */ + mask = (1 << w) - 1; /* needed on HP, cc -O bug */ + while ((i & mask) != x[h]) + { + h--; /* don't need to update q */ + w -= l; + mask = (1 << w) - 1; + } + } + } + + + /* Return Z_BUF_ERROR if we were given an incomplete table */ + return y != 0 && g != 1 ? Z_BUF_ERROR : Z_OK; +} + + +local int inflate_trees_bits( /* c, bb, tb, hp, z) */ +uIntf *c, /* 19 code lengths */ +uIntf *bb, /* bits tree desired/actual depth */ +inflate_huft * FAR *tb, /* bits tree result */ +inflate_huft *hp, /* space for trees */ +z_streamp z /* for messages */ +) +{ + int r; + uInt hn = 0; /* hufts used in space */ + uIntf *v; /* work area for huft_build */ + + if ((v = (uIntf*)ZALLOC(z, 19, sizeof(uInt))) == Z_NULL) + return Z_MEM_ERROR; + r = huft_build(c, 19, 19, (uIntf*)Z_NULL, (uIntf*)Z_NULL, + tb, bb, hp, &hn, v); + if (r == Z_DATA_ERROR) + z->msg = (char*)"oversubscribed dynamic bit lengths tree"; + else if (r == Z_BUF_ERROR || *bb == 0) + { + z->msg = (char*)"incomplete dynamic bit lengths tree"; + r = Z_DATA_ERROR; + } + ZFREE(z, v); + return r; +} + + +local int inflate_trees_dynamic( /* nl, nd, c, bl, bd, tl, td, hp, z) */ +uInt nl, /* number of literal/length codes */ +uInt nd, /* number of distance codes */ +uIntf *c, /* that many (total) code lengths */ +uIntf *bl, /* literal desired/actual bit depth */ +uIntf *bd, /* distance desired/actual bit depth */ +inflate_huft * FAR *tl, /* literal/length tree result */ +inflate_huft * FAR *td, /* distance tree result */ +inflate_huft *hp, /* space for trees */ +z_streamp z /* for messages */ +) +{ + int r; + uInt hn = 0; /* hufts used in space */ + uIntf *v; /* work area for huft_build */ + + /* allocate work area */ + if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) + return Z_MEM_ERROR; + + /* build literal/length tree */ + r = huft_build(c, nl, 257, cplens, cplext, tl, bl, hp, &hn, v); + if (r != Z_OK || *bl == 0) + { + if (r == Z_DATA_ERROR) + z->msg = (char*)"oversubscribed literal/length tree"; + else if (r != Z_MEM_ERROR) + { + z->msg = (char*)"incomplete literal/length tree"; + r = Z_DATA_ERROR; + } + ZFREE(z, v); + return r; + } + + /* build distance tree */ + r = huft_build(c + nl, nd, 0, cpdist, cpdext, td, bd, hp, &hn, v); + if (r != Z_OK || (*bd == 0 && nl > 257)) + { + if (r == Z_DATA_ERROR) + z->msg = (char*)"oversubscribed distance tree"; + else if (r == Z_BUF_ERROR) { +#if 0 + { +#endif +#ifdef PKZIP_BUG_WORKAROUND + r = Z_OK; + } +#else + z->msg = (char*)"incomplete distance tree"; + r = Z_DATA_ERROR; + } + else if (r != Z_MEM_ERROR) + { + z->msg = (char*)"empty distance tree with lengths"; + r = Z_DATA_ERROR; + } + ZFREE(z, v); + return r; +#endif + } + + /* done */ + ZFREE(z, v); + return Z_OK; +} + + +/* build fixed tables only once--keep them here */ +#ifdef BUILDFIXED +local int fixed_built = 0; +#define FIXEDH 544 /* number of hufts used by fixed tables */ +local inflate_huft fixed_mem[FIXEDH]; +local uInt fixed_bl; +local uInt fixed_bd; +local inflate_huft *fixed_tl; +local inflate_huft *fixed_td; +#else +#include "inffixed.h" +#endif + + +local int inflate_trees_fixed( /* bl, bd, tl, td, z) */ +uIntf *bl, /* literal desired/actual bit depth */ +uIntf *bd, /* distance desired/actual bit depth */ +const inflate_huft * FAR *tl, /* literal/length tree result */ +const inflate_huft * FAR *td, /* distance tree result */ +z_streamp z /* for memory allocation */ +) +{ +#ifdef BUILDFIXED + /* build fixed tables if not already */ + if (!fixed_built) + { + int k; /* temporary variable */ + uInt f = 0; /* number of hufts used in fixed_mem */ + uIntf *c; /* length list for huft_build */ + uIntf *v; /* work area for huft_build */ + + /* allocate memory */ + if ((c = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) + return Z_MEM_ERROR; + if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) + { + ZFREE(z, c); + return Z_MEM_ERROR; + } + + /* literal table */ + for (k = 0; k < 144; k++) + c[k] = 8; + for (; k < 256; k++) + c[k] = 9; + for (; k < 280; k++) + c[k] = 7; + for (; k < 288; k++) + c[k] = 8; + fixed_bl = 9; + huft_build(c, 288, 257, cplens, cplext, &fixed_tl, &fixed_bl, + fixed_mem, &f, v); + + /* distance table */ + for (k = 0; k < 30; k++) + c[k] = 5; + fixed_bd = 5; + huft_build(c, 30, 0, cpdist, cpdext, &fixed_td, &fixed_bd, + fixed_mem, &f, v); + + /* done */ + ZFREE(z, v); + ZFREE(z, c); + fixed_built = 1; + } +#else + FT_UNUSED(z); +#endif + *bl = fixed_bl; + *bd = fixed_bd; + *tl = fixed_tl; + *td = fixed_td; + return Z_OK; +} diff --git a/src/gzip/inftrees.h b/src/gzip/inftrees.h new file mode 100644 index 0000000..07bf2aa --- /dev/null +++ b/src/gzip/inftrees.h @@ -0,0 +1,63 @@ +/* inftrees.h -- header to use inftrees.c + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* Huffman code lookup table entry--this entry is four bytes for machines + that have 16-bit pointers (e.g. PC's in the small or medium model). */ + +#ifndef _INFTREES_H +#define _INFTREES_H + +typedef struct inflate_huft_s FAR inflate_huft; + +struct inflate_huft_s { + union { + struct { + Byte Exop; /* number of extra bits or operation */ + Byte Bits; /* number of bits in this code or subcode */ + } what; + uInt pad; /* pad structure to a power of 2 (4 bytes for */ + } word; /* 16-bit, 8 bytes for 32-bit int's) */ + uInt base; /* literal, length base, distance base, + or table offset */ +}; + +/* Maximum size of dynamic tree. The maximum found in a long but non- + exhaustive search was 1004 huft structures (850 for length/literals + and 154 for distances, the latter actually the result of an + exhaustive search). The actual maximum is not known, but the + value below is more than safe. */ +#define MANY 1440 + +local int inflate_trees_bits OF(( + uIntf *, /* 19 code lengths */ + uIntf *, /* bits tree desired/actual depth */ + inflate_huft * FAR *, /* bits tree result */ + inflate_huft *, /* space for trees */ + z_streamp)); /* for messages */ + +local int inflate_trees_dynamic OF(( + uInt, /* number of literal/length codes */ + uInt, /* number of distance codes */ + uIntf *, /* that many (total) code lengths */ + uIntf *, /* literal desired/actual bit depth */ + uIntf *, /* distance desired/actual bit depth */ + inflate_huft * FAR *, /* literal/length tree result */ + inflate_huft * FAR *, /* distance tree result */ + inflate_huft *, /* space for trees */ + z_streamp)); /* for messages */ + +local int inflate_trees_fixed OF(( + uIntf *, /* literal desired/actual bit depth */ + uIntf *, /* distance desired/actual bit depth */ + const inflate_huft * FAR *, /* literal/length tree result */ + const inflate_huft * FAR *, /* distance tree result */ + z_streamp)); /* for memory allocation */ + +#endif /* _INFTREES_H */ diff --git a/src/gzip/infutil.c b/src/gzip/infutil.c new file mode 100644 index 0000000..6087b40 --- /dev/null +++ b/src/gzip/infutil.c @@ -0,0 +1,86 @@ +/* inflate_util.c -- data and routines common to blocks and codes + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include "zutil.h" +#include "infblock.h" +#include "inftrees.h" +#include "infcodes.h" +#include "infutil.h" + + +/* And'ing with mask[n] masks the lower n bits */ +local const uInt inflate_mask[17] = { + 0x0000, + 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff, + 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff +}; + + +/* copy as much as possible from the sliding window to the output area */ +local int inflate_flush( /* s, z, r) */ +inflate_blocks_statef *s, +z_streamp z, +int r ) +{ + uInt n; + Bytef *p; + Bytef *q; + + /* local copies of source and destination pointers */ + p = z->next_out; + q = s->read; + + /* compute number of bytes to copy as far as end of window */ + n = (uInt)((q <= s->write ? s->write : s->end) - q); + if (n > z->avail_out) n = z->avail_out; + if (n && r == Z_BUF_ERROR) r = Z_OK; + + /* update counters */ + z->avail_out -= n; + z->total_out += n; + + /* update check information */ + if (s->checkfn != Z_NULL) + z->adler = s->check = (*s->checkfn)(s->check, q, n); + + /* copy as far as end of window */ + zmemcpy(p, q, n); + p += n; + q += n; + + /* see if more to copy at beginning of window */ + if (q == s->end) + { + /* wrap pointers */ + q = s->window; + if (s->write == s->end) + s->write = s->window; + + /* compute bytes to copy */ + n = (uInt)(s->write - q); + if (n > z->avail_out) n = z->avail_out; + if (n && r == Z_BUF_ERROR) r = Z_OK; + + /* update counters */ + z->avail_out -= n; + z->total_out += n; + + /* update check information */ + if (s->checkfn != Z_NULL) + z->adler = s->check = (*s->checkfn)(s->check, q, n); + + /* copy */ + zmemcpy(p, q, n); + p += n; + q += n; + } + + /* update pointers */ + z->next_out = p; + s->read = q; + + /* done */ + return r; +} diff --git a/src/gzip/infutil.h b/src/gzip/infutil.h new file mode 100644 index 0000000..7174b6d --- /dev/null +++ b/src/gzip/infutil.h @@ -0,0 +1,98 @@ +/* infutil.h -- types and macros common to blocks and codes + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +#ifndef _INFUTIL_H +#define _INFUTIL_H + +typedef enum { + TYPE, /* get type bits (3, including end bit) */ + LENS, /* get lengths for stored */ + STORED, /* processing stored block */ + TABLE, /* get table lengths */ + BTREE, /* get bit lengths tree for a dynamic block */ + DTREE, /* get length, distance trees for a dynamic block */ + CODES, /* processing fixed or dynamic block */ + DRY, /* output remaining window bytes */ + DONE, /* finished last block, done */ + BAD} /* got a data error--stuck here */ +inflate_block_mode; + +/* inflate blocks semi-private state */ +struct inflate_blocks_state { + + /* mode */ + inflate_block_mode mode; /* current inflate_block mode */ + + /* mode dependent information */ + union { + uInt left; /* if STORED, bytes left to copy */ + struct { + uInt table; /* table lengths (14 bits) */ + uInt index; /* index into blens (or border) */ + uIntf *blens; /* bit lengths of codes */ + uInt bb; /* bit length tree depth */ + inflate_huft *tb; /* bit length decoding tree */ + } trees; /* if DTREE, decoding info for trees */ + struct { + inflate_codes_statef + *codes; + } decode; /* if CODES, current state */ + } sub; /* submode */ + uInt last; /* true if this block is the last block */ + + /* mode independent information */ + uInt bitk; /* bits in bit buffer */ + uLong bitb; /* bit buffer */ + inflate_huft *hufts; /* single malloc for tree space */ + Bytef *window; /* sliding window */ + Bytef *end; /* one byte after sliding window */ + Bytef *read; /* window read pointer */ + Bytef *write; /* window write pointer */ + check_func checkfn; /* check function */ + uLong check; /* check on output */ + +}; + + +/* defines for inflate input/output */ +/* update pointers and return */ +#define UPDBITS {s->bitb=b;s->bitk=k;} +#define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;} +#define UPDOUT {s->write=q;} +#define UPDATE {UPDBITS UPDIN UPDOUT} +#define LEAVE {UPDATE return inflate_flush(s,z,r);} +/* get bytes and bits */ +#define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;} +#define NEEDBYTE {if(n)r=Z_OK;else LEAVE} +#define NEXTBYTE (n--,*p++) +#define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<<k;k+=8;}} +#define DUMPBITS(j) {b>>=(j);k-=(j);} +/* output bytes */ +#define WAVAIL (uInt)(q<s->read?s->read-q-1:s->end-q) +#define LOADOUT {q=s->write;m=(uInt)WAVAIL;} +#define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=(uInt)WAVAIL;}} +#define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT} +#define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;} +#define OUTBYTE(a) {*q++=(Byte)(a);m--;} +/* load local pointers */ +#define LOAD {LOADIN LOADOUT} + +/* masks for lower bits (size given to avoid silly warnings with Visual C++) */ +#ifndef NO_INFLATE_MASK +local uInt inflate_mask[17]; +#endif + +/* copy as much as possible from the sliding window to the output area */ +local int inflate_flush OF(( + inflate_blocks_statef *, + z_streamp , + int)); + +#endif diff --git a/src/gzip/rules.mk b/src/gzip/rules.mk new file mode 100644 index 0000000..d2a43a6 --- /dev/null +++ b/src/gzip/rules.mk @@ -0,0 +1,75 @@ +# +# FreeType 2 GZip support configuration rules +# + + +# Copyright 2002, 2003 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# gzip driver directory +# +GZIP_DIR := $(SRC_DIR)/gzip + + +# compilation flags for the driver +# +ifeq ($(SYSTEM_ZLIB),) + GZIP_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(GZIP_DIR)) +else + GZIP_COMPILE := $(FT_COMPILE) +endif + + +# gzip support sources (i.e., C files) +# +GZIP_DRV_SRC := $(GZIP_DIR)/ftgzip.c + +# gzip support headers +# +GZIP_DRV_H := + + +# gzip driver object(s) +# +# GZIP_DRV_OBJ_M is used during `multi' builds +# GZIP_DRV_OBJ_S is used during `single' builds +# +ifeq ($(SYSTEM_ZLIB),) + GZIP_DRV_OBJ_M := $(GZIP_DRV_SRC:$(GZIP_DIR)/%.c=$(OBJ_DIR)/%.$O) +else + GZIP_DRV_OBJ_M := $(OBJ_DIR)/ftgzip.$O +endif +GZIP_DRV_OBJ_S := $(OBJ_DIR)/ftgzip.$O + +# gzip support source file for single build +# +GZIP_DRV_SRC_S := $(GZIP_DIR)/ftgzip.c + + +# gzip support - single object +# +$(GZIP_DRV_OBJ_S): $(GZIP_DRV_SRC_S) $(GZIP_DRV_SRC) $(FREETYPE_H) \ + $(GZIP_DRV_H) + $(GZIP_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(GZIP_DRV_SRC_S)) + + +# gzip support - multiple objects +# +$(OBJ_DIR)/%.$O: $(GZIP_DIR)/%.c $(FREETYPE_H) $(GZIP_DRV_H) + $(GZIP_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(GZIP_DRV_OBJ_S) +DRV_OBJS_M += $(GZIP_DRV_OBJ_M) + + +# EOF diff --git a/src/gzip/zconf.h b/src/gzip/zconf.h new file mode 100644 index 0000000..3abf0ba --- /dev/null +++ b/src/gzip/zconf.h @@ -0,0 +1,284 @@ +/* zconf.h -- configuration of the zlib compression library + * Copyright (C) 1995-2002 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#ifndef _ZCONF_H +#define _ZCONF_H + +/* + * If you *really* need a unique prefix for all types and library functions, + * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. + */ +#ifdef Z_PREFIX +# define deflateInit_ z_deflateInit_ +# define deflate z_deflate +# define deflateEnd z_deflateEnd +# define inflateInit_ z_inflateInit_ +# define inflate z_inflate +# define inflateEnd z_inflateEnd +# define deflateInit2_ z_deflateInit2_ +# define deflateSetDictionary z_deflateSetDictionary +# define deflateCopy z_deflateCopy +# define deflateReset z_deflateReset +# define deflateParams z_deflateParams +# define inflateInit2_ z_inflateInit2_ +# define inflateSetDictionary z_inflateSetDictionary +# define inflateSync z_inflateSync +# define inflateSyncPoint z_inflateSyncPoint +# define inflateReset z_inflateReset +# define compress z_compress +# define compress2 z_compress2 +# define uncompress z_uncompress +# define adler32 z_adler32 +# define crc32 z_crc32 +# define get_crc_table z_get_crc_table + +# define Byte z_Byte +# define uInt z_uInt +# define uLong z_uLong +# define Bytef z_Bytef +# define charf z_charf +# define intf z_intf +# define uIntf z_uIntf +# define uLongf z_uLongf +# define voidpf z_voidpf +# define voidp z_voidp +#endif + +#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32) +# define WIN32 +#endif +#if defined(__GNUC__) || defined(WIN32) || defined(__386__) || defined(i386) +# ifndef __32BIT__ +# define __32BIT__ +# endif +#endif +#if defined(__MSDOS__) && !defined(MSDOS) +# define MSDOS +#endif + +/* WinCE doesn't have errno.h */ +#ifdef _WIN32_WCE +# define NO_ERRNO_H +#endif + + +/* + * Compile with -DMAXSEG_64K if the alloc function cannot allocate more + * than 64k bytes at a time (needed on systems with 16-bit int). + */ +#if defined(MSDOS) && !defined(__32BIT__) +# define MAXSEG_64K +#endif +#ifdef MSDOS +# define UNALIGNED_OK +#endif + +#if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32)) && !defined(STDC) +# define STDC +#endif +#if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__) +# ifndef STDC +# define STDC +# endif +#endif + +#ifndef STDC +# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ +# define const +# endif +#endif + +/* Some Mac compilers merge all .h files incorrectly: */ +#if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__) +# define NO_DUMMY_DECL +#endif + +/* Old Borland C and LCC incorrectly complains about missing returns: */ +#if defined(__BORLANDC__) && (__BORLANDC__ < 0x500) +# define NEED_DUMMY_RETURN +#endif + +#if defined(__LCC__) +# define NEED_DUMMY_RETURN +#endif + +/* Maximum value for memLevel in deflateInit2 */ +#ifndef MAX_MEM_LEVEL +# ifdef MAXSEG_64K +# define MAX_MEM_LEVEL 8 +# else +# define MAX_MEM_LEVEL 9 +# endif +#endif + +/* Maximum value for windowBits in deflateInit2 and inflateInit2. + * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files + * created by gzip. (Files created by minigzip can still be extracted by + * gzip.) + */ +#ifndef MAX_WBITS +# define MAX_WBITS 15 /* 32K LZ77 window */ +#endif + +/* The memory requirements for deflate are (in bytes): + (1 << (windowBits+2)) + (1 << (memLevel+9)) + that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) + plus a few kilobytes for small objects. For example, if you want to reduce + the default memory requirements from 256K to 128K, compile with + make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" + Of course this will generally degrade compression (there's no free lunch). + + The memory requirements for inflate are (in bytes) 1 << windowBits + that is, 32K for windowBits=15 (default value) plus a few kilobytes + for small objects. +*/ + + /* Type declarations */ + +#ifndef OF /* function prototypes */ +# ifdef STDC +# define OF(args) args +# else +# define OF(args) () +# endif +#endif + +/* The following definitions for FAR are needed only for MSDOS mixed + * model programming (small or medium model with some far allocations). + * This was tested only with MSC; for other MSDOS compilers you may have + * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, + * just define FAR to be empty. + */ +#if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__) + /* MSC small or medium model */ +# define SMALL_MEDIUM +# ifdef _MSC_VER +# define FAR _far +# else +# define FAR far +# endif +#endif +#if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__)) +# ifndef __32BIT__ +# define SMALL_MEDIUM +# define FAR _far +# endif +#endif + +/* Compile with -DZLIB_DLL for Windows DLL support */ +#if defined(ZLIB_DLL) +# if defined(_WINDOWS) || defined(WINDOWS) +# ifdef FAR +# undef FAR +# endif +# include <windows.h> +# define ZEXPORT(x) x WINAPI +# ifdef WIN32 +# define ZEXPORTVA(x) x WINAPIV +# else +# define ZEXPORTVA(x) x FAR _cdecl _export +# endif +# endif +# if defined (__BORLANDC__) +# if (__BORLANDC__ >= 0x0500) && defined (WIN32) +# include <windows.h> +# define ZEXPORT(x) x __declspec(dllexport) WINAPI +# define ZEXPORTRVA(x) x __declspec(dllexport) WINAPIV +# else +# if defined (_Windows) && defined (__DLL__) +# define ZEXPORT(x) x _export +# define ZEXPORTVA(x) x _export +# endif +# endif +# endif +#endif + + +#ifndef ZEXPORT +# define ZEXPORT(x) static x +#endif +#ifndef ZEXPORTVA +# define ZEXPORTVA(x) static x +#endif +#ifndef ZEXTERN +# define ZEXTERN(x) static x +#endif +#ifndef ZEXTERNDEF +# define ZEXTERNDEF(x) static x +#endif + +#ifndef FAR +# define FAR +#endif + +#if !defined(MACOS) && !defined(TARGET_OS_MAC) +typedef unsigned char Byte; /* 8 bits */ +#endif +typedef unsigned int uInt; /* 16 bits or more */ +typedef unsigned long uLong; /* 32 bits or more */ + +#ifdef SMALL_MEDIUM + /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ +# define Bytef Byte FAR +#else + typedef Byte FAR Bytef; +#endif +typedef char FAR charf; +typedef int FAR intf; +typedef uInt FAR uIntf; +typedef uLong FAR uLongf; + +#ifdef STDC + typedef void FAR *voidpf; + typedef void *voidp; +#else + typedef Byte FAR *voidpf; + typedef Byte *voidp; +#endif + +#ifdef HAVE_UNISTD_H +# include <sys/types.h> /* for off_t */ +# include <unistd.h> /* for SEEK_* and off_t */ +# define z_off_t off_t +#endif +#ifndef SEEK_SET +# define SEEK_SET 0 /* Seek from beginning of file. */ +# define SEEK_CUR 1 /* Seek from current position. */ +# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ +#endif +#ifndef z_off_t +# define z_off_t long +#endif + +/* MVS linker does not support external names larger than 8 bytes */ +#if defined(__MVS__) +# pragma map(deflateInit_,"DEIN") +# pragma map(deflateInit2_,"DEIN2") +# pragma map(deflateEnd,"DEEND") +# pragma map(inflateInit_,"ININ") +# pragma map(inflateInit2_,"ININ2") +# pragma map(inflateEnd,"INEND") +# pragma map(inflateSync,"INSY") +# pragma map(inflateSetDictionary,"INSEDI") +# pragma map(inflate_blocks,"INBL") +# pragma map(inflate_blocks_new,"INBLNE") +# pragma map(inflate_blocks_free,"INBLFR") +# pragma map(inflate_blocks_reset,"INBLRE") +# pragma map(inflate_codes_free,"INCOFR") +# pragma map(inflate_codes,"INCO") +# pragma map(inflate_fast,"INFA") +# pragma map(inflate_flush,"INFLU") +# pragma map(inflate_mask,"INMA") +# pragma map(inflate_set_dictionary,"INSEDI2") +# pragma map(inflate_copyright,"INCOPY") +# pragma map(inflate_trees_bits,"INTRBI") +# pragma map(inflate_trees_dynamic,"INTRDY") +# pragma map(inflate_trees_fixed,"INTRFI") +# pragma map(inflate_trees_free,"INTRFR") +#endif + +#endif /* _ZCONF_H */ diff --git a/src/gzip/zlib.h b/src/gzip/zlib.h new file mode 100644 index 0000000..50d0d3f --- /dev/null +++ b/src/gzip/zlib.h @@ -0,0 +1,830 @@ +/* zlib.h -- interface of the 'zlib' general purpose compression library + version 1.1.4, March 11th, 2002 + + Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Jean-loup Gailly Mark Adler + jloup@gzip.org madler@alumni.caltech.edu + + + The data format used by the zlib library is described by RFCs (Request for + Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt + (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). +*/ + +#ifndef _ZLIB_H +#define _ZLIB_H + +#include "zconf.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define ZLIB_VERSION "1.1.4" + +/* + The 'zlib' compression library provides in-memory compression and + decompression functions, including integrity checks of the uncompressed + data. This version of the library supports only one compression method + (deflation) but other algorithms will be added later and will have the same + stream interface. + + Compression can be done in a single step if the buffers are large + enough (for example if an input file is mmap'ed), or can be done by + repeated calls of the compression function. In the latter case, the + application must provide more input and/or consume the output + (providing more output space) before each call. + + The library also supports reading and writing files in gzip (.gz) format + with an interface similar to that of stdio. + + The library does not install any signal handler. The decoder checks + the consistency of the compressed data, so the library should never + crash even in case of corrupted input. +*/ + +typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size)); +typedef void (*free_func) OF((voidpf opaque, voidpf address)); + +struct internal_state; + +typedef struct z_stream_s { + Bytef *next_in; /* next input byte */ + uInt avail_in; /* number of bytes available at next_in */ + uLong total_in; /* total nb of input bytes read so far */ + + Bytef *next_out; /* next output byte should be put there */ + uInt avail_out; /* remaining free space at next_out */ + uLong total_out; /* total nb of bytes output so far */ + + char *msg; /* last error message, NULL if no error */ + struct internal_state FAR *state; /* not visible by applications */ + + alloc_func zalloc; /* used to allocate the internal state */ + free_func zfree; /* used to free the internal state */ + voidpf opaque; /* private data object passed to zalloc and zfree */ + + int data_type; /* best guess about the data type: ascii or binary */ + uLong adler; /* adler32 value of the uncompressed data */ + uLong reserved; /* reserved for future use */ +} z_stream; + +typedef z_stream FAR *z_streamp; + +/* + The application must update next_in and avail_in when avail_in has + dropped to zero. It must update next_out and avail_out when avail_out + has dropped to zero. The application must initialize zalloc, zfree and + opaque before calling the init function. All other fields are set by the + compression library and must not be updated by the application. + + The opaque value provided by the application will be passed as the first + parameter for calls of zalloc and zfree. This can be useful for custom + memory management. The compression library attaches no meaning to the + opaque value. + + zalloc must return Z_NULL if there is not enough memory for the object. + If zlib is used in a multi-threaded application, zalloc and zfree must be + thread safe. + + On 16-bit systems, the functions zalloc and zfree must be able to allocate + exactly 65536 bytes, but will not be required to allocate more than this + if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, + pointers returned by zalloc for objects of exactly 65536 bytes *must* + have their offset normalized to zero. The default allocation function + provided by this library ensures this (see zutil.c). To reduce memory + requirements and avoid any allocation of 64K objects, at the expense of + compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h). + + The fields total_in and total_out can be used for statistics or + progress reports. After compression, total_in holds the total size of + the uncompressed data and may be saved for use in the decompressor + (particularly if the decompressor wants to decompress everything in + a single step). +*/ + + /* constants */ + +#define Z_NO_FLUSH 0 +#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */ +#define Z_SYNC_FLUSH 2 +#define Z_FULL_FLUSH 3 +#define Z_FINISH 4 +/* Allowed flush values; see deflate() below for details */ + +#define Z_OK 0 +#define Z_STREAM_END 1 +#define Z_NEED_DICT 2 +#define Z_ERRNO (-1) +#define Z_STREAM_ERROR (-2) +#define Z_DATA_ERROR (-3) +#define Z_MEM_ERROR (-4) +#define Z_BUF_ERROR (-5) +#define Z_VERSION_ERROR (-6) +/* Return codes for the compression/decompression functions. Negative + * values are errors, positive values are used for special but normal events. + */ + +#define Z_NO_COMPRESSION 0 +#define Z_BEST_SPEED 1 +#define Z_BEST_COMPRESSION 9 +#define Z_DEFAULT_COMPRESSION (-1) +/* compression levels */ + +#define Z_FILTERED 1 +#define Z_HUFFMAN_ONLY 2 +#define Z_DEFAULT_STRATEGY 0 +/* compression strategy; see deflateInit2() below for details */ + +#define Z_BINARY 0 +#define Z_ASCII 1 +#define Z_UNKNOWN 2 +/* Possible values of the data_type field */ + +#define Z_DEFLATED 8 +/* The deflate compression method (the only one supported in this version) */ + +#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ + + + /* basic functions */ + +/* The application can compare zlibVersion and ZLIB_VERSION for consistency. + If the first character differs, the library code actually used is + not compatible with the zlib.h header file used by the application. + This check is automatically made by deflateInit and inflateInit. + */ + +/* +ZEXTERN(int) deflateInit OF((z_streamp strm, int level)); + + Initializes the internal stream state for compression. The fields + zalloc, zfree and opaque must be initialized before by the caller. + If zalloc and zfree are set to Z_NULL, deflateInit updates them to + use default allocation functions. + + The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: + 1 gives best speed, 9 gives best compression, 0 gives no compression at + all (the input data is simply copied a block at a time). + Z_DEFAULT_COMPRESSION requests a default compromise between speed and + compression (currently equivalent to level 6). + + deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_STREAM_ERROR if level is not a valid compression level, + Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible + with the version assumed by the caller (ZLIB_VERSION). + msg is set to null if there is no error message. deflateInit does not + perform any compression: this will be done by deflate(). +*/ + + +/* + deflate compresses as much data as possible, and stops when the input + buffer becomes empty or the output buffer becomes full. It may introduce some + output latency (reading input without producing any output) except when + forced to flush. + + The detailed semantics are as follows. deflate performs one or both of the + following actions: + + - Compress more input starting at next_in and update next_in and avail_in + accordingly. If not all input can be processed (because there is not + enough room in the output buffer), next_in and avail_in are updated and + processing will resume at this point for the next call of deflate(). + + - Provide more output starting at next_out and update next_out and avail_out + accordingly. This action is forced if the parameter flush is non zero. + Forcing flush frequently degrades the compression ratio, so this parameter + should be set only when necessary (in interactive applications). + Some output may be provided even if flush is not set. + + Before the call of deflate(), the application should ensure that at least + one of the actions is possible, by providing more input and/or consuming + more output, and updating avail_in or avail_out accordingly; avail_out + should never be zero before the call. The application can consume the + compressed output when it wants, for example when the output buffer is full + (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK + and with zero avail_out, it must be called again after making room in the + output buffer because there might be more output pending. + + If the parameter flush is set to Z_SYNC_FLUSH, all pending output is + flushed to the output buffer and the output is aligned on a byte boundary, so + that the decompressor can get all input data available so far. (In particular + avail_in is zero after the call if enough output space has been provided + before the call.) Flushing may degrade compression for some compression + algorithms and so it should be used only when necessary. + + If flush is set to Z_FULL_FLUSH, all output is flushed as with + Z_SYNC_FLUSH, and the compression state is reset so that decompression can + restart from this point if previous compressed data has been damaged or if + random access is desired. Using Z_FULL_FLUSH too often can seriously degrade + the compression. + + If deflate returns with avail_out == 0, this function must be called again + with the same value of the flush parameter and more output space (updated + avail_out), until the flush is complete (deflate returns with non-zero + avail_out). + + If the parameter flush is set to Z_FINISH, pending input is processed, + pending output is flushed and deflate returns with Z_STREAM_END if there + was enough output space; if deflate returns with Z_OK, this function must be + called again with Z_FINISH and more output space (updated avail_out) but no + more input data, until it returns with Z_STREAM_END or an error. After + deflate has returned Z_STREAM_END, the only possible operations on the + stream are deflateReset or deflateEnd. + + Z_FINISH can be used immediately after deflateInit if all the compression + is to be done in a single step. In this case, avail_out must be at least + 0.1% larger than avail_in plus 12 bytes. If deflate does not return + Z_STREAM_END, then it must be called again as described above. + + deflate() sets strm->adler to the adler32 checksum of all input read + so far (that is, total_in bytes). + + deflate() may update data_type if it can make a good guess about + the input data type (Z_ASCII or Z_BINARY). In doubt, the data is considered + binary. This field is only for information purposes and does not affect + the compression algorithm in any manner. + + deflate() returns Z_OK if some progress has been made (more input + processed or more output produced), Z_STREAM_END if all input has been + consumed and all output has been produced (only when flush is set to + Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example + if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible + (for example avail_in or avail_out was zero). +*/ + + +/* + All dynamically allocated data structures for this stream are freed. + This function discards any unprocessed input and does not flush any + pending output. + + deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the + stream state was inconsistent, Z_DATA_ERROR if the stream was freed + prematurely (some input or output was discarded). In the error case, + msg may be set but then points to a static string (which must not be + deallocated). +*/ + + +/* +ZEXTERN(int) inflateInit OF((z_streamp strm)); + + Initializes the internal stream state for decompression. The fields + next_in, avail_in, zalloc, zfree and opaque must be initialized before by + the caller. If next_in is not Z_NULL and avail_in is large enough (the exact + value depends on the compression method), inflateInit determines the + compression method from the zlib header and allocates all data structures + accordingly; otherwise the allocation will be deferred to the first call of + inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to + use default allocation functions. + + inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_VERSION_ERROR if the zlib library version is incompatible with the + version assumed by the caller. msg is set to null if there is no error + message. inflateInit does not perform any decompression apart from reading + the zlib header if present: this will be done by inflate(). (So next_in and + avail_in may be modified, but next_out and avail_out are unchanged.) +*/ + + +ZEXTERN(int) inflate OF((z_streamp strm, int flush)); +/* + inflate decompresses as much data as possible, and stops when the input + buffer becomes empty or the output buffer becomes full. It may some + introduce some output latency (reading input without producing any output) + except when forced to flush. + + The detailed semantics are as follows. inflate performs one or both of the + following actions: + + - Decompress more input starting at next_in and update next_in and avail_in + accordingly. If not all input can be processed (because there is not + enough room in the output buffer), next_in is updated and processing + will resume at this point for the next call of inflate(). + + - Provide more output starting at next_out and update next_out and avail_out + accordingly. inflate() provides as much output as possible, until there + is no more input data or no more space in the output buffer (see below + about the flush parameter). + + Before the call of inflate(), the application should ensure that at least + one of the actions is possible, by providing more input and/or consuming + more output, and updating the next_* and avail_* values accordingly. + The application can consume the uncompressed output when it wants, for + example when the output buffer is full (avail_out == 0), or after each + call of inflate(). If inflate returns Z_OK and with zero avail_out, it + must be called again after making room in the output buffer because there + might be more output pending. + + If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much + output as possible to the output buffer. The flushing behavior of inflate is + not specified for values of the flush parameter other than Z_SYNC_FLUSH + and Z_FINISH, but the current implementation actually flushes as much output + as possible anyway. + + inflate() should normally be called until it returns Z_STREAM_END or an + error. However if all decompression is to be performed in a single step + (a single call of inflate), the parameter flush should be set to + Z_FINISH. In this case all pending input is processed and all pending + output is flushed; avail_out must be large enough to hold all the + uncompressed data. (The size of the uncompressed data may have been saved + by the compressor for this purpose.) The next operation on this stream must + be inflateEnd to deallocate the decompression state. The use of Z_FINISH + is never required, but can be used to inform inflate that a faster routine + may be used for the single inflate() call. + + If a preset dictionary is needed at this point (see inflateSetDictionary + below), inflate sets strm-adler to the adler32 checksum of the + dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise + it sets strm->adler to the adler32 checksum of all output produced + so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or + an error code as described below. At the end of the stream, inflate() + checks that its computed adler32 checksum is equal to that saved by the + compressor and returns Z_STREAM_END only if the checksum is correct. + + inflate() returns Z_OK if some progress has been made (more input processed + or more output produced), Z_STREAM_END if the end of the compressed data has + been reached and all uncompressed output has been produced, Z_NEED_DICT if a + preset dictionary is needed at this point, Z_DATA_ERROR if the input data was + corrupted (input stream not conforming to the zlib format or incorrect + adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent + (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if no progress is possible or if there was not + enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR + case, the application may then call inflateSync to look for a good + compression block. +*/ + + +ZEXTERN(int) inflateEnd OF((z_streamp strm)); +/* + All dynamically allocated data structures for this stream are freed. + This function discards any unprocessed input and does not flush any + pending output. + + inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state + was inconsistent. In the error case, msg may be set but then points to a + static string (which must not be deallocated). +*/ + + /* Advanced functions */ + +/* + The following functions are needed only in some special applications. +*/ + +/* +ZEXTERN(int) deflateInit2 OF((z_streamp strm, + int level, + int method, + int windowBits, + int memLevel, + int strategy)); + + This is another version of deflateInit with more compression options. The + fields next_in, zalloc, zfree and opaque must be initialized before by + the caller. + + The method parameter is the compression method. It must be Z_DEFLATED in + this version of the library. + + The windowBits parameter is the base two logarithm of the window size + (the size of the history buffer). It should be in the range 8..15 for this + version of the library. Larger values of this parameter result in better + compression at the expense of memory usage. The default value is 15 if + deflateInit is used instead. + + The memLevel parameter specifies how much memory should be allocated + for the internal compression state. memLevel=1 uses minimum memory but + is slow and reduces compression ratio; memLevel=9 uses maximum memory + for optimal speed. The default value is 8. See zconf.h for total memory + usage as a function of windowBits and memLevel. + + The strategy parameter is used to tune the compression algorithm. Use the + value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a + filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no + string match). Filtered data consists mostly of small values with a + somewhat random distribution. In this case, the compression algorithm is + tuned to compress them better. The effect of Z_FILTERED is to force more + Huffman coding and less string matching; it is somewhat intermediate + between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects + the compression ratio but not the correctness of the compressed output even + if it is not set appropriately. + + deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid + method). msg is set to null if there is no error message. deflateInit2 does + not perform any compression: this will be done by deflate(). +*/ + +/* + Initializes the compression dictionary from the given byte sequence + without producing any compressed output. This function must be called + immediately after deflateInit, deflateInit2 or deflateReset, before any + call of deflate. The compressor and decompressor must use exactly the same + dictionary (see inflateSetDictionary). + + The dictionary should consist of strings (byte sequences) that are likely + to be encountered later in the data to be compressed, with the most commonly + used strings preferably put towards the end of the dictionary. Using a + dictionary is most useful when the data to be compressed is short and can be + predicted with good accuracy; the data can then be compressed better than + with the default empty dictionary. + + Depending on the size of the compression data structures selected by + deflateInit or deflateInit2, a part of the dictionary may in effect be + discarded, for example if the dictionary is larger than the window size in + deflate or deflate2. Thus the strings most likely to be useful should be + put at the end of the dictionary, not at the front. + + Upon return of this function, strm->adler is set to the Adler32 value + of the dictionary; the decompressor may later use this value to determine + which dictionary has been used by the compressor. (The Adler32 value + applies to the whole dictionary even if only a subset of the dictionary is + actually used by the compressor.) + + deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a + parameter is invalid (such as NULL dictionary) or the stream state is + inconsistent (for example if deflate has already been called for this stream + or if the compression method is bsort). deflateSetDictionary does not + perform any compression: this will be done by deflate(). +*/ + +/* + Sets the destination stream as a complete copy of the source stream. + + This function can be useful when several compression strategies will be + tried, for example when there are several ways of pre-processing the input + data with a filter. The streams that will be discarded should then be freed + by calling deflateEnd. Note that deflateCopy duplicates the internal + compression state which can be quite large, so this strategy is slow and + can consume lots of memory. + + deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_STREAM_ERROR if the source stream state was inconsistent + (such as zalloc being NULL). msg is left unchanged in both source and + destination. +*/ + +/* + This function is equivalent to deflateEnd followed by deflateInit, + but does not free and reallocate all the internal compression state. + The stream will keep the same compression level and any other attributes + that may have been set by deflateInit2. + + deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent (such as zalloc or state being NULL). +*/ + +/* + Dynamically update the compression level and compression strategy. The + interpretation of level and strategy is as in deflateInit2. This can be + used to switch between compression and straight copy of the input data, or + to switch to a different kind of input data requiring a different + strategy. If the compression level is changed, the input available so far + is compressed with the old level (and may be flushed); the new level will + take effect only at the next call of deflate(). + + Before the call of deflateParams, the stream state must be set as for + a call of deflate(), since the currently available input may have to + be compressed and flushed. In particular, strm->avail_out must be non-zero. + + deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source + stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR + if strm->avail_out was zero. +*/ + +/* +ZEXTERN(int) inflateInit2 OF((z_streamp strm, + int windowBits)); + + This is another version of inflateInit with an extra parameter. The + fields next_in, avail_in, zalloc, zfree and opaque must be initialized + before by the caller. + + The windowBits parameter is the base two logarithm of the maximum window + size (the size of the history buffer). It should be in the range 8..15 for + this version of the library. The default value is 15 if inflateInit is used + instead. If a compressed stream with a larger window size is given as + input, inflate() will return with the error code Z_DATA_ERROR instead of + trying to allocate a larger window. + + inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative + memLevel). msg is set to null if there is no error message. inflateInit2 + does not perform any decompression apart from reading the zlib header if + present: this will be done by inflate(). (So next_in and avail_in may be + modified, but next_out and avail_out are unchanged.) +*/ + +/* + Initializes the decompression dictionary from the given uncompressed byte + sequence. This function must be called immediately after a call of inflate + if this call returned Z_NEED_DICT. The dictionary chosen by the compressor + can be determined from the Adler32 value returned by this call of + inflate. The compressor and decompressor must use exactly the same + dictionary (see deflateSetDictionary). + + inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a + parameter is invalid (such as NULL dictionary) or the stream state is + inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the + expected one (incorrect Adler32 value). inflateSetDictionary does not + perform any decompression: this will be done by subsequent calls of + inflate(). +*/ + +/* + Skips invalid compressed data until a full flush point (see above the + description of deflate with Z_FULL_FLUSH) can be found, or until all + available input is skipped. No output is provided. + + inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR + if no more input was provided, Z_DATA_ERROR if no flush point has been found, + or Z_STREAM_ERROR if the stream structure was inconsistent. In the success + case, the application may save the current current value of total_in which + indicates where valid compressed data was found. In the error case, the + application may repeatedly call inflateSync, providing more input each time, + until success or end of the input data. +*/ + +ZEXTERN(int) inflateReset OF((z_streamp strm)); +/* + This function is equivalent to inflateEnd followed by inflateInit, + but does not free and reallocate all the internal decompression state. + The stream will keep attributes that may have been set by inflateInit2. + + inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent (such as zalloc or state being NULL). +*/ + + + /* utility functions */ + +/* + The following utility functions are implemented on top of the + basic stream-oriented functions. To simplify the interface, some + default options are assumed (compression level and memory usage, + standard memory allocation functions). The source code of these + utility functions can easily be modified if you need special options. +*/ + +/* + Compresses the source buffer into the destination buffer. sourceLen is + the byte length of the source buffer. Upon entry, destLen is the total + size of the destination buffer, which must be at least 0.1% larger than + sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the + compressed buffer. + This function can be used to compress a whole file at once if the + input file is mmap'ed. + compress returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if there was not enough room in the output + buffer. +*/ + +/* + Compresses the source buffer into the destination buffer. The level + parameter has the same meaning as in deflateInit. sourceLen is the byte + length of the source buffer. Upon entry, destLen is the total size of the + destination buffer, which must be at least 0.1% larger than sourceLen plus + 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. + + compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_BUF_ERROR if there was not enough room in the output buffer, + Z_STREAM_ERROR if the level parameter is invalid. +*/ + +/* + Decompresses the source buffer into the destination buffer. sourceLen is + the byte length of the source buffer. Upon entry, destLen is the total + size of the destination buffer, which must be large enough to hold the + entire uncompressed data. (The size of the uncompressed data must have + been saved previously by the compressor and transmitted to the decompressor + by some mechanism outside the scope of this compression library.) + Upon exit, destLen is the actual size of the compressed buffer. + This function can be used to decompress a whole file at once if the + input file is mmap'ed. + + uncompress returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if there was not enough room in the output + buffer, or Z_DATA_ERROR if the input data was corrupted. +*/ + + +/* + Opens a gzip (.gz) file for reading or writing. The mode parameter + is as in fopen ("rb" or "wb") but can also include a compression level + ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for + Huffman only compression as in "wb1h". (See the description + of deflateInit2 for more information about the strategy parameter.) + + gzopen can be used to read a file which is not in gzip format; in this + case gzread will directly read from the file without decompression. + + gzopen returns NULL if the file could not be opened or if there was + insufficient memory to allocate the (de)compression state; errno + can be checked to distinguish the two cases (if errno is zero, the + zlib error is Z_MEM_ERROR). */ + +/* + gzdopen() associates a gzFile with the file descriptor fd. File + descriptors are obtained from calls like open, dup, creat, pipe or + fileno (in the file has been previously opened with fopen). + The mode parameter is as in gzopen. + The next call of gzclose on the returned gzFile will also close the + file descriptor fd, just like fclose(fdopen(fd), mode) closes the file + descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode). + gzdopen returns NULL if there was insufficient memory to allocate + the (de)compression state. +*/ + +/* + Dynamically update the compression level or strategy. See the description + of deflateInit2 for the meaning of these parameters. + gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not + opened for writing. +*/ + +/* + Reads the given number of uncompressed bytes from the compressed file. + If the input file was not in gzip format, gzread copies the given number + of bytes into the buffer. + gzread returns the number of uncompressed bytes actually read (0 for + end of file, -1 for error). */ + +/* + Writes the given number of uncompressed bytes into the compressed file. + gzwrite returns the number of uncompressed bytes actually written + (0 in case of error). +*/ + +/* + Converts, formats, and writes the args to the compressed file under + control of the format string, as in fprintf. gzprintf returns the number of + uncompressed bytes actually written (0 in case of error). +*/ + +/* + Writes the given null-terminated string to the compressed file, excluding + the terminating null character. + gzputs returns the number of characters written, or -1 in case of error. +*/ + +/* + Reads bytes from the compressed file until len-1 characters are read, or + a newline character is read and transferred to buf, or an end-of-file + condition is encountered. The string is then terminated with a null + character. + gzgets returns buf, or Z_NULL in case of error. +*/ + +/* + Writes c, converted to an unsigned char, into the compressed file. + gzputc returns the value that was written, or -1 in case of error. +*/ + +/* + Reads one byte from the compressed file. gzgetc returns this byte + or -1 in case of end of file or error. +*/ + +/* + Flushes all pending output into the compressed file. The parameter + flush is as in the deflate() function. The return value is the zlib + error number (see function gzerror below). gzflush returns Z_OK if + the flush parameter is Z_FINISH and all output could be flushed. + gzflush should be called only when strictly necessary because it can + degrade compression. +*/ + +/* + Sets the starting position for the next gzread or gzwrite on the + given compressed file. The offset represents a number of bytes in the + uncompressed data stream. The whence parameter is defined as in lseek(2); + the value SEEK_END is not supported. + If the file is opened for reading, this function is emulated but can be + extremely slow. If the file is opened for writing, only forward seeks are + supported; gzseek then compresses a sequence of zeroes up to the new + starting position. + + gzseek returns the resulting offset location as measured in bytes from + the beginning of the uncompressed stream, or -1 in case of error, in + particular if the file is opened for writing and the new starting position + would be before the current position. +*/ + +/* + Rewinds the given file. This function is supported only for reading. + + gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) +*/ + +/* + Returns the starting position for the next gzread or gzwrite on the + given compressed file. This position represents a number of bytes in the + uncompressed data stream. + + gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) +*/ + +/* + Returns 1 when EOF has previously been detected reading the given + input stream, otherwise zero. +*/ + +/* + Flushes all pending output if necessary, closes the compressed file + and deallocates all the (de)compression state. The return value is the zlib + error number (see function gzerror below). +*/ + +/* + Returns the error message for the last error which occurred on the + given compressed file. errnum is set to zlib error number. If an + error occurred in the file system and not in the compression library, + errnum is set to Z_ERRNO and the application may consult errno + to get the exact error code. +*/ + + /* checksum functions */ + +/* + These functions are not related to compression but are exported + anyway because they might be useful in applications using the + compression library. +*/ + +ZEXTERN(uLong) adler32 OF((uLong adler, const Bytef *buf, uInt len)); + +/* + Update a running Adler-32 checksum with the bytes buf[0..len-1] and + return the updated checksum. If buf is NULL, this function returns + the required initial value for the checksum. + An Adler-32 checksum is almost as reliable as a CRC32 but can be computed + much faster. Usage example: + + uLong adler = adler32(0L, Z_NULL, 0); + + while (read_buffer(buffer, length) != EOF) { + adler = adler32(adler, buffer, length); + } + if (adler != original_adler) error(); +*/ + +/* + Update a running crc with the bytes buf[0..len-1] and return the updated + crc. If buf is NULL, this function returns the required initial value + for the crc. Pre- and post-conditioning (one's complement) is performed + within this function so it shouldn't be done by the application. + Usage example: + + uLong crc = crc32(0L, Z_NULL, 0); + + while (read_buffer(buffer, length) != EOF) { + crc = crc32(crc, buffer, length); + } + if (crc != original_crc) error(); +*/ + + + /* various hacks, don't look :) */ + +/* deflateInit and inflateInit are macros to allow checking the zlib version + * and the compiler's view of z_stream: + */ +ZEXTERN(int) inflateInit2_ OF((z_streamp strm, int windowBits, + const char *version, int stream_size)); +#define deflateInit(strm, level) \ + deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) +#define inflateInit(strm) \ + inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) +#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ + deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ + (strategy), ZLIB_VERSION, sizeof(z_stream)) +#define inflateInit2(strm, windowBits) \ + inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) + + +#ifdef __cplusplus +} +#endif + +#endif /* _ZLIB_H */ diff --git a/src/gzip/zutil.c b/src/gzip/zutil.c new file mode 100644 index 0000000..7ad0c1f --- /dev/null +++ b/src/gzip/zutil.c @@ -0,0 +1,181 @@ +/* zutil.c -- target dependent utility functions for the compression library + * Copyright (C) 1995-2002 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id$ */ + +#include "zutil.h" + +#ifndef STDC +extern void exit OF((int)); +#endif + + +#ifndef HAVE_MEMCPY + +void zmemcpy(dest, source, len) + Bytef* dest; + const Bytef* source; + uInt len; +{ + if (len == 0) return; + do { + *dest++ = *source++; /* ??? to be unrolled */ + } while (--len != 0); +} + +int zmemcmp(s1, s2, len) + const Bytef* s1; + const Bytef* s2; + uInt len; +{ + uInt j; + + for (j = 0; j < len; j++) { + if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1; + } + return 0; +} + +void zmemzero(dest, len) + Bytef* dest; + uInt len; +{ + if (len == 0) return; + do { + *dest++ = 0; /* ??? to be unrolled */ + } while (--len != 0); +} +#endif + +#if defined( MSDOS ) && defined( __TURBOC__ ) && !defined( MY_ZCALLOC ) +#if (defined( __BORLANDC__) || !defined(SMALL_MEDIUM)) && !defined(__32BIT__) +/* Small and medium model in Turbo C are for now limited to near allocation + * with reduced MAX_WBITS and MAX_MEM_LEVEL + */ +# define MY_ZCALLOC + +/* Turbo C malloc() does not allow dynamic allocation of 64K bytes + * and farmalloc(64K) returns a pointer with an offset of 8, so we + * must fix the pointer. Warning: the pointer must be put back to its + * original form in order to free it, use zcfree(). + */ + +#define MAX_PTR 10 +/* 10*64K = 640K */ + +local int next_ptr = 0; + +typedef struct ptr_table_s { + voidpf org_ptr; + voidpf new_ptr; +} ptr_table; + +local ptr_table table[MAX_PTR]; +/* This table is used to remember the original form of pointers + * to large buffers (64K). Such pointers are normalized with a zero offset. + * Since MSDOS is not a preemptive multitasking OS, this table is not + * protected from concurrent access. This hack doesn't work anyway on + * a protected system like OS/2. Use Microsoft C instead. + */ + +voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) +{ + voidpf buf = opaque; /* just to make some compilers happy */ + ulg bsize = (ulg)items*size; + + /* If we allocate less than 65520 bytes, we assume that farmalloc + * will return a usable pointer which doesn't have to be normalized. + */ + if (bsize < 65520L) { + buf = farmalloc(bsize); + if (*(ush*)&buf != 0) return buf; + } else { + buf = farmalloc(bsize + 16L); + } + if (buf == NULL || next_ptr >= MAX_PTR) return NULL; + table[next_ptr].org_ptr = buf; + + /* Normalize the pointer to seg:0 */ + *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4; + *(ush*)&buf = 0; + table[next_ptr++].new_ptr = buf; + return buf; +} + +void zcfree (voidpf opaque, voidpf ptr) +{ + int n; + if (*(ush*)&ptr != 0) { /* object < 64K */ + farfree(ptr); + return; + } + /* Find the original pointer */ + for (n = 0; n < next_ptr; n++) { + if (ptr != table[n].new_ptr) continue; + + farfree(table[n].org_ptr); + while (++n < next_ptr) { + table[n-1] = table[n]; + } + next_ptr--; + return; + } + ptr = opaque; /* just to make some compilers happy */ + Assert(0, "zcfree: ptr not found"); +} +#endif +#endif /* MSDOS && __TURBOC__ */ + + +#if defined(M_I86) && !defined(__32BIT__) && !defined( MY_ZCALLOC ) +/* Microsoft C in 16-bit mode */ + +# define MY_ZCALLOC + +#if (!defined(_MSC_VER) || (_MSC_VER <= 600)) +# define _halloc halloc +# define _hfree hfree +#endif + +voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) +{ + if (opaque) opaque = 0; /* to make compiler happy */ + return _halloc((long)items, size); +} + +void zcfree (voidpf opaque, voidpf ptr) +{ + if (opaque) opaque = 0; /* to make compiler happy */ + _hfree(ptr); +} + +#endif /* MSC */ + + +#ifndef MY_ZCALLOC /* Any system without a special alloc function */ + +#ifndef STDC +extern voidp ft_scalloc OF((uInt items, uInt size)); +extern void ft_sfree OF((voidpf ptr)); +#endif + +voidpf zcalloc (opaque, items, size) + voidpf opaque; + unsigned items; + unsigned size; +{ + if (opaque) items += size - size; /* make compiler happy */ + return (voidpf)ft_scalloc(items, size); +} + +void zcfree (opaque, ptr) + voidpf opaque; + voidpf ptr; +{ + ft_sfree(ptr); + if (opaque) return; /* make compiler happy */ +} + +#endif /* MY_ZCALLOC */ diff --git a/src/gzip/zutil.h b/src/gzip/zutil.h new file mode 100644 index 0000000..c9688cd --- /dev/null +++ b/src/gzip/zutil.h @@ -0,0 +1,215 @@ +/* zutil.h -- internal interface and configuration of the compression library + * Copyright (C) 1995-2002 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* @(#) $Id$ */ + +#ifndef _Z_UTIL_H +#define _Z_UTIL_H + +#include "zlib.h" + +#ifdef STDC +# include <stddef.h> +# include <string.h> +# include <stdlib.h> +#endif +#ifdef NO_ERRNO_H + extern int errno; +#else +# include <errno.h> +#endif + +#ifndef local +# define local static +#endif +/* compile with -Dlocal if your debugger can't find static symbols */ + +typedef unsigned char uch; +typedef uch FAR uchf; +typedef unsigned short ush; +typedef ush FAR ushf; +typedef unsigned long ulg; + + +#define ERR_RETURN(strm,err) \ + return (strm->msg = (char*)ERR_MSG(err), (err)) +/* To be used only when the state is known to be valid */ + + /* common constants */ + +#ifndef DEF_WBITS +# define DEF_WBITS MAX_WBITS +#endif +/* default windowBits for decompression. MAX_WBITS is for compression only */ + +#if MAX_MEM_LEVEL >= 8 +# define DEF_MEM_LEVEL 8 +#else +# define DEF_MEM_LEVEL MAX_MEM_LEVEL +#endif +/* default memLevel */ + +#define STORED_BLOCK 0 +#define STATIC_TREES 1 +#define DYN_TREES 2 +/* The three kinds of block type */ + +#define MIN_MATCH 3 +#define MAX_MATCH 258 +/* The minimum and maximum match lengths */ + +#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ + + /* target dependencies */ + +#ifdef MSDOS +# define OS_CODE 0x00 +# if defined(__TURBOC__) || defined(__BORLANDC__) +# if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) + /* Allow compilation with ANSI keywords only enabled */ + void _Cdecl farfree( void *block ); + void *_Cdecl farmalloc( unsigned long nbytes ); +# else +# include <alloc.h> +# endif +# else /* MSC or DJGPP */ +# endif +#endif + +#ifdef OS2 +# define OS_CODE 0x06 +#endif + +#ifdef WIN32 /* Window 95 & Windows NT */ +# define OS_CODE 0x0b +#endif + +#if defined(VAXC) || defined(VMS) +# define OS_CODE 0x02 +# define F_OPEN(name, mode) \ + ft_fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") +#endif + +#ifdef AMIGA +# define OS_CODE 0x01 +#endif + +#if defined(ATARI) || defined(atarist) +# define OS_CODE 0x05 +#endif + +#if defined(MACOS) || defined(TARGET_OS_MAC) +# define OS_CODE 0x07 +# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os +# include <unix.h> /* for fdopen */ +# else +# ifndef fdopen +# define fdopen(fd,mode) NULL /* No fdopen() */ +# endif +# endif +#endif + +#ifdef __50SERIES /* Prime/PRIMOS */ +# define OS_CODE 0x0F +#endif + +#ifdef TOPS20 +# define OS_CODE 0x0a +#endif + +#if defined(_BEOS_) || defined(RISCOS) +# define fdopen(fd,mode) NULL /* No fdopen() */ +#endif + +#if (defined(_MSC_VER) && (_MSC_VER > 600)) +# define fdopen(fd,type) _fdopen(fd,type) +#endif + + + /* Common defaults */ + +#ifndef OS_CODE +# define OS_CODE 0x03 /* assume Unix */ +#endif + +#ifndef F_OPEN +# define F_OPEN(name, mode) ft_fopen((name), (mode)) +#endif + + /* functions */ + +#ifdef HAVE_STRERROR + extern char *strerror OF((int)); +# define zstrerror(errnum) strerror(errnum) +#else +# define zstrerror(errnum) "" +#endif + +#if defined(pyr) +# define NO_MEMCPY +#endif +#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) + /* Use our own functions for small and medium model with MSC <= 5.0. + * You may have to use the same strategy for Borland C (untested). + * The __SC__ check is for Symantec. + */ +# define NO_MEMCPY +#endif +#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) +# define HAVE_MEMCPY +#endif +#ifdef HAVE_MEMCPY +# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ +# define zmemcpy _fmemcpy +# define zmemcmp _fmemcmp +# define zmemzero(dest, len) _fmemset(dest, 0, len) +# else +# define zmemcpy ft_memcpy +# define zmemcmp ft_memcmp +# define zmemzero(dest, len) ft_memset(dest, 0, len) +# endif +#else + extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); + extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); + extern void zmemzero OF((Bytef* dest, uInt len)); +#endif + +/* Diagnostic functions */ +#ifdef DEBUG +# include <stdio.h> + extern int z_verbose; + extern void z_error OF((char *m)); +# define Assert(cond,msg) {if(!(cond)) z_error(msg);} +# define Trace(x) {if (z_verbose>=0) fprintf x ;} +# define Tracev(x) {if (z_verbose>0) fprintf x ;} +# define Tracevv(x) {if (z_verbose>1) fprintf x ;} +# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} +# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} +#else +# define Assert(cond,msg) +# define Trace(x) +# define Tracev(x) +# define Tracevv(x) +# define Tracec(c,x) +# define Tracecv(c,x) +#endif + + +typedef uLong (*check_func) OF((uLong check, const Bytef *buf, + uInt len)); +local voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); +local void zcfree OF((voidpf opaque, voidpf ptr)); + +#define ZALLOC(strm, items, size) \ + (*((strm)->zalloc))((strm)->opaque, (items), (size)) +#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) +#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} + +#endif /* _Z_UTIL_H */ diff --git a/src/lzw/Jamfile b/src/lzw/Jamfile new file mode 100644 index 0000000..6f1f516 --- /dev/null +++ b/src/lzw/Jamfile @@ -0,0 +1,16 @@ +# FreeType 2 src/lzw Jamfile +# +# Copyright 2004, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) lzw ; + +Library $(FT2_LIB) : ftlzw.c ; + +# end of src/lzw Jamfile diff --git a/src/lzw/ftlzw.c b/src/lzw/ftlzw.c new file mode 100644 index 0000000..35e392b --- /dev/null +++ b/src/lzw/ftlzw.c @@ -0,0 +1,413 @@ +/***************************************************************************/ +/* */ +/* ftlzw.c */ +/* */ +/* FreeType support for .Z compressed files. */ +/* */ +/* This optional component relies on NetBSD's zopen(). It should mainly */ +/* be used to parse compressed PCF fonts, as found with many X11 server */ +/* distributions. */ +/* */ +/* Copyright 2004-2006, 2009, 2010, 2012 by */ +/* Albert Chin-A-Young. */ +/* */ +/* Based on code in src/gzip/ftgzip.c, Copyright 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <ft2build.h> +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H +#include FT_LZW_H +#include FT_CONFIG_STANDARD_LIBRARY_H + + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX LZW_Err_ +#define FT_ERR_BASE FT_Mod_Err_LZW + +#include FT_ERRORS_H + + +#ifdef FT_CONFIG_OPTION_USE_LZW + +#ifdef FT_CONFIG_OPTION_PIC +#error "lzw code does not support PIC yet" +#endif + +#include "ftzopen.h" + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** M E M O R Y M A N A G E M E N T *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** F I L E D E S C R I P T O R *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + +#define FT_LZW_BUFFER_SIZE 4096 + + typedef struct FT_LZWFileRec_ + { + FT_Stream source; /* parent/source stream */ + FT_Stream stream; /* embedding stream */ + FT_Memory memory; /* memory allocator */ + FT_LzwStateRec lzw; /* lzw decompressor state */ + + FT_Byte buffer[FT_LZW_BUFFER_SIZE]; /* output buffer */ + FT_ULong pos; /* position in output */ + FT_Byte* cursor; + FT_Byte* limit; + + } FT_LZWFileRec, *FT_LZWFile; + + + /* check and skip .Z header */ + static FT_Error + ft_lzw_check_header( FT_Stream stream ) + { + FT_Error error; + FT_Byte head[2]; + + + if ( FT_STREAM_SEEK( 0 ) || + FT_STREAM_READ( head, 2 ) ) + goto Exit; + + /* head[0] && head[1] are the magic numbers */ + if ( head[0] != 0x1f || + head[1] != 0x9d ) + error = LZW_Err_Invalid_File_Format; + + Exit: + return error; + } + + + static FT_Error + ft_lzw_file_init( FT_LZWFile zip, + FT_Stream stream, + FT_Stream source ) + { + FT_LzwState lzw = &zip->lzw; + FT_Error error = LZW_Err_Ok; + + + zip->stream = stream; + zip->source = source; + zip->memory = stream->memory; + + zip->limit = zip->buffer + FT_LZW_BUFFER_SIZE; + zip->cursor = zip->limit; + zip->pos = 0; + + /* check and skip .Z header */ + error = ft_lzw_check_header( source ); + if ( error ) + goto Exit; + + /* initialize internal lzw variable */ + ft_lzwstate_init( lzw, source ); + + Exit: + return error; + } + + + static void + ft_lzw_file_done( FT_LZWFile zip ) + { + /* clear the rest */ + ft_lzwstate_done( &zip->lzw ); + + zip->memory = NULL; + zip->source = NULL; + zip->stream = NULL; + } + + + static FT_Error + ft_lzw_file_reset( FT_LZWFile zip ) + { + FT_Stream stream = zip->source; + FT_Error error; + + + if ( !FT_STREAM_SEEK( 0 ) ) + { + ft_lzwstate_reset( &zip->lzw ); + + zip->limit = zip->buffer + FT_LZW_BUFFER_SIZE; + zip->cursor = zip->limit; + zip->pos = 0; + } + + return error; + } + + + static FT_Error + ft_lzw_file_fill_output( FT_LZWFile zip ) + { + FT_LzwState lzw = &zip->lzw; + FT_ULong count; + FT_Error error = LZW_Err_Ok; + + + zip->cursor = zip->buffer; + + count = ft_lzwstate_io( lzw, zip->buffer, FT_LZW_BUFFER_SIZE ); + + zip->limit = zip->cursor + count; + + if ( count == 0 ) + error = LZW_Err_Invalid_Stream_Operation; + + return error; + } + + + /* fill output buffer; `count' must be <= FT_LZW_BUFFER_SIZE */ + static FT_Error + ft_lzw_file_skip_output( FT_LZWFile zip, + FT_ULong count ) + { + FT_Error error = LZW_Err_Ok; + + + /* first, we skip what we can from the output buffer */ + { + FT_ULong delta = (FT_ULong)( zip->limit - zip->cursor ); + + + if ( delta >= count ) + delta = count; + + zip->cursor += delta; + zip->pos += delta; + + count -= delta; + } + + /* next, we skip as many bytes remaining as possible */ + while ( count > 0 ) + { + FT_ULong delta = FT_LZW_BUFFER_SIZE; + FT_ULong numread; + + + if ( delta > count ) + delta = count; + + numread = ft_lzwstate_io( &zip->lzw, NULL, delta ); + if ( numread < delta ) + { + /* not enough bytes */ + error = LZW_Err_Invalid_Stream_Operation; + break; + } + + zip->pos += delta; + count -= delta; + } + + return error; + } + + + static FT_ULong + ft_lzw_file_io( FT_LZWFile zip, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_ULong result = 0; + FT_Error error; + + + /* seeking backwards. */ + if ( pos < zip->pos ) + { + /* If the new position is within the output buffer, simply */ + /* decrement pointers, otherwise we reset the stream completely! */ + if ( ( zip->pos - pos ) <= (FT_ULong)( zip->cursor - zip->buffer ) ) + { + zip->cursor -= zip->pos - pos; + zip->pos = pos; + } + else + { + error = ft_lzw_file_reset( zip ); + if ( error ) + goto Exit; + } + } + + /* skip unwanted bytes */ + if ( pos > zip->pos ) + { + error = ft_lzw_file_skip_output( zip, (FT_ULong)( pos - zip->pos ) ); + if ( error ) + goto Exit; + } + + if ( count == 0 ) + goto Exit; + + /* now read the data */ + for (;;) + { + FT_ULong delta; + + + delta = (FT_ULong)( zip->limit - zip->cursor ); + if ( delta >= count ) + delta = count; + + FT_MEM_COPY( buffer + result, zip->cursor, delta ); + result += delta; + zip->cursor += delta; + zip->pos += delta; + + count -= delta; + if ( count == 0 ) + break; + + error = ft_lzw_file_fill_output( zip ); + if ( error ) + break; + } + + Exit: + return result; + } + + +/***************************************************************************/ +/***************************************************************************/ +/***** *****/ +/***** L Z W E M B E D D I N G S T R E A M *****/ +/***** *****/ +/***************************************************************************/ +/***************************************************************************/ + + static void + ft_lzw_stream_close( FT_Stream stream ) + { + FT_LZWFile zip = (FT_LZWFile)stream->descriptor.pointer; + FT_Memory memory = stream->memory; + + + if ( zip ) + { + /* finalize lzw file descriptor */ + ft_lzw_file_done( zip ); + + FT_FREE( zip ); + + stream->descriptor.pointer = NULL; + } + } + + + static FT_ULong + ft_lzw_stream_io( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_LZWFile zip = (FT_LZWFile)stream->descriptor.pointer; + + + return ft_lzw_file_io( zip, pos, buffer, count ); + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_OpenLZW( FT_Stream stream, + FT_Stream source ) + { + FT_Error error; + FT_Memory memory = source->memory; + FT_LZWFile zip = NULL; + + + /* + * Check the header right now; this prevents allocation of a huge + * LZWFile object (400 KByte of heap memory) if not necessary. + * + * Did I mention that you should never use .Z compressed font + * files? + */ + error = ft_lzw_check_header( source ); + if ( error ) + goto Exit; + + FT_ZERO( stream ); + stream->memory = memory; + + if ( !FT_NEW( zip ) ) + { + error = ft_lzw_file_init( zip, stream, source ); + if ( error ) + { + FT_FREE( zip ); + goto Exit; + } + + stream->descriptor.pointer = zip; + } + + stream->size = 0x7FFFFFFFL; /* don't know the real size! */ + stream->pos = 0; + stream->base = 0; + stream->read = ft_lzw_stream_io; + stream->close = ft_lzw_stream_close; + + Exit: + return error; + } + + +#include "ftzopen.c" + + +#else /* !FT_CONFIG_OPTION_USE_LZW */ + + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_OpenLZW( FT_Stream stream, + FT_Stream source ) + { + FT_UNUSED( stream ); + FT_UNUSED( source ); + + return LZW_Err_Unimplemented_Feature; + } + + +#endif /* !FT_CONFIG_OPTION_USE_LZW */ + + +/* END */ diff --git a/src/lzw/ftzopen.c b/src/lzw/ftzopen.c new file mode 100644 index 0000000..d7a6457 --- /dev/null +++ b/src/lzw/ftzopen.c @@ -0,0 +1,415 @@ +/***************************************************************************/ +/* */ +/* ftzopen.c */ +/* */ +/* FreeType support for .Z compressed files. */ +/* */ +/* This optional component relies on NetBSD's zopen(). It should mainly */ +/* be used to parse compressed PCF fonts, as found with many X11 server */ +/* distributions. */ +/* */ +/* Copyright 2005-2007, 2009, 2011 by David Turner. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include "ftzopen.h" +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H + + + static int + ft_lzwstate_refill( FT_LzwState state ) + { + FT_ULong count; + + + if ( state->in_eof ) + return -1; + + count = FT_Stream_TryRead( state->source, + state->buf_tab, + state->num_bits ); /* WHY? */ + + state->buf_size = (FT_UInt)count; + state->buf_total += count; + state->in_eof = FT_BOOL( count < state->num_bits ); + state->buf_offset = 0; + state->buf_size = ( state->buf_size << 3 ) - ( state->num_bits - 1 ); + + if ( count == 0 ) /* end of file */ + return -1; + + return 0; + } + + + static FT_Int32 + ft_lzwstate_get_code( FT_LzwState state ) + { + FT_UInt num_bits = state->num_bits; + FT_Int offset = state->buf_offset; + FT_Byte* p; + FT_Int result; + + + if ( state->buf_clear || + offset >= state->buf_size || + state->free_ent >= state->free_bits ) + { + if ( state->free_ent >= state->free_bits ) + { + state->num_bits = ++num_bits; + state->free_bits = state->num_bits < state->max_bits + ? (FT_UInt)( ( 1UL << num_bits ) - 256 ) + : state->max_free + 1; + } + + if ( state->buf_clear ) + { + state->num_bits = num_bits = LZW_INIT_BITS; + state->free_bits = (FT_UInt)( ( 1UL << num_bits ) - 256 ); + state->buf_clear = 0; + } + + if ( ft_lzwstate_refill( state ) < 0 ) + return -1; + + offset = 0; + } + + state->buf_offset = offset + num_bits; + + p = &state->buf_tab[offset >> 3]; + offset &= 7; + result = *p++ >> offset; + offset = 8 - offset; + num_bits -= offset; + + if ( num_bits >= 8 ) + { + result |= *p++ << offset; + offset += 8; + num_bits -= 8; + } + if ( num_bits > 0 ) + result |= ( *p & LZW_MASK( num_bits ) ) << offset; + + return result; + } + + + /* grow the character stack */ + static int + ft_lzwstate_stack_grow( FT_LzwState state ) + { + if ( state->stack_top >= state->stack_size ) + { + FT_Memory memory = state->memory; + FT_Error error; + FT_Offset old_size = state->stack_size; + FT_Offset new_size = old_size; + + new_size = new_size + ( new_size >> 1 ) + 4; + + if ( state->stack == state->stack_0 ) + { + state->stack = NULL; + old_size = 0; + } + + /* requirement of the character stack larger than 1<<LZW_MAX_BITS */ + /* implies bug in the decompression code */ + if ( new_size > ( 1 << LZW_MAX_BITS ) ) + { + new_size = 1 << LZW_MAX_BITS; + if ( new_size == old_size ) + return -1; + } + + if ( FT_RENEW_ARRAY( state->stack, old_size, new_size ) ) + return -1; + + state->stack_size = new_size; + } + return 0; + } + + + /* grow the prefix/suffix arrays */ + static int + ft_lzwstate_prefix_grow( FT_LzwState state ) + { + FT_UInt old_size = state->prefix_size; + FT_UInt new_size = old_size; + FT_Memory memory = state->memory; + FT_Error error; + + + if ( new_size == 0 ) /* first allocation -> 9 bits */ + new_size = 512; + else + new_size += new_size >> 2; /* don't grow too fast */ + + /* + * Note that the `suffix' array is located in the same memory block + * pointed to by `prefix'. + * + * I know that sizeof(FT_Byte) == 1 by definition, but it is clearer + * to write it literally. + * + */ + if ( FT_REALLOC_MULT( state->prefix, old_size, new_size, + sizeof ( FT_UShort ) + sizeof ( FT_Byte ) ) ) + return -1; + + /* now adjust `suffix' and move the data accordingly */ + state->suffix = (FT_Byte*)( state->prefix + new_size ); + + FT_MEM_MOVE( state->suffix, + state->prefix + old_size, + old_size * sizeof ( FT_Byte ) ); + + state->prefix_size = new_size; + return 0; + } + + + FT_LOCAL_DEF( void ) + ft_lzwstate_reset( FT_LzwState state ) + { + state->in_eof = 0; + state->buf_offset = 0; + state->buf_size = 0; + state->buf_clear = 0; + state->buf_total = 0; + state->stack_top = 0; + state->num_bits = LZW_INIT_BITS; + state->phase = FT_LZW_PHASE_START; + } + + + FT_LOCAL_DEF( void ) + ft_lzwstate_init( FT_LzwState state, + FT_Stream source ) + { + FT_ZERO( state ); + + state->source = source; + state->memory = source->memory; + + state->prefix = NULL; + state->suffix = NULL; + state->prefix_size = 0; + + state->stack = state->stack_0; + state->stack_size = sizeof ( state->stack_0 ); + + ft_lzwstate_reset( state ); + } + + + FT_LOCAL_DEF( void ) + ft_lzwstate_done( FT_LzwState state ) + { + FT_Memory memory = state->memory; + + + ft_lzwstate_reset( state ); + + if ( state->stack != state->stack_0 ) + FT_FREE( state->stack ); + + FT_FREE( state->prefix ); + state->suffix = NULL; + + FT_ZERO( state ); + } + + +#define FTLZW_STACK_PUSH( c ) \ + FT_BEGIN_STMNT \ + if ( state->stack_top >= state->stack_size && \ + ft_lzwstate_stack_grow( state ) < 0 ) \ + goto Eof; \ + \ + state->stack[state->stack_top++] = (FT_Byte)(c); \ + FT_END_STMNT + + + FT_LOCAL_DEF( FT_ULong ) + ft_lzwstate_io( FT_LzwState state, + FT_Byte* buffer, + FT_ULong out_size ) + { + FT_ULong result = 0; + + FT_UInt old_char = state->old_char; + FT_UInt old_code = state->old_code; + FT_UInt in_code = state->in_code; + + + if ( out_size == 0 ) + goto Exit; + + switch ( state->phase ) + { + case FT_LZW_PHASE_START: + { + FT_Byte max_bits; + FT_Int32 c; + + + /* skip magic bytes, and read max_bits + block_flag */ + if ( FT_Stream_Seek( state->source, 2 ) != 0 || + FT_Stream_TryRead( state->source, &max_bits, 1 ) != 1 ) + goto Eof; + + state->max_bits = max_bits & LZW_BIT_MASK; + state->block_mode = max_bits & LZW_BLOCK_MASK; + state->max_free = (FT_UInt)( ( 1UL << state->max_bits ) - 256 ); + + if ( state->max_bits > LZW_MAX_BITS ) + goto Eof; + + state->num_bits = LZW_INIT_BITS; + state->free_ent = ( state->block_mode ? LZW_FIRST + : LZW_CLEAR ) - 256; + in_code = 0; + + state->free_bits = state->num_bits < state->max_bits + ? (FT_UInt)( ( 1UL << state->num_bits ) - 256 ) + : state->max_free + 1; + + c = ft_lzwstate_get_code( state ); + if ( c < 0 || c > 255 ) + goto Eof; + + old_code = old_char = (FT_UInt)c; + + if ( buffer ) + buffer[result] = (FT_Byte)old_char; + + if ( ++result >= out_size ) + goto Exit; + + state->phase = FT_LZW_PHASE_CODE; + } + /* fall-through */ + + case FT_LZW_PHASE_CODE: + { + FT_Int32 c; + FT_UInt code; + + + NextCode: + c = ft_lzwstate_get_code( state ); + if ( c < 0 ) + goto Eof; + + code = (FT_UInt)c; + + if ( code == LZW_CLEAR && state->block_mode ) + { + /* why not LZW_FIRST-256 ? */ + state->free_ent = ( LZW_FIRST - 1 ) - 256; + state->buf_clear = 1; + + /* not quite right, but at least more predictable */ + old_code = 0; + old_char = 0; + + goto NextCode; + } + + in_code = code; /* save code for later */ + + if ( code >= 256U ) + { + /* special case for KwKwKwK */ + if ( code - 256U >= state->free_ent ) + { + /* corrupted LZW stream */ + if ( code - 256U > state->free_ent ) + goto Eof; + + FTLZW_STACK_PUSH( old_char ); + code = old_code; + } + + while ( code >= 256U ) + { + if ( !state->prefix ) + goto Eof; + + FTLZW_STACK_PUSH( state->suffix[code - 256] ); + code = state->prefix[code - 256]; + } + } + + old_char = code; + FTLZW_STACK_PUSH( old_char ); + + state->phase = FT_LZW_PHASE_STACK; + } + /* fall-through */ + + case FT_LZW_PHASE_STACK: + { + while ( state->stack_top > 0 ) + { + --state->stack_top; + + if ( buffer ) + buffer[result] = state->stack[state->stack_top]; + + if ( ++result == out_size ) + goto Exit; + } + + /* now create new entry */ + if ( state->free_ent < state->max_free ) + { + if ( state->free_ent >= state->prefix_size && + ft_lzwstate_prefix_grow( state ) < 0 ) + goto Eof; + + FT_ASSERT( state->free_ent < state->prefix_size ); + + state->prefix[state->free_ent] = (FT_UShort)old_code; + state->suffix[state->free_ent] = (FT_Byte) old_char; + + state->free_ent += 1; + } + + old_code = in_code; + + state->phase = FT_LZW_PHASE_CODE; + goto NextCode; + } + + default: /* state == EOF */ + ; + } + + Exit: + state->old_code = old_code; + state->old_char = old_char; + state->in_code = in_code; + + return result; + + Eof: + state->phase = FT_LZW_PHASE_EOF; + goto Exit; + } + + +/* END */ diff --git a/src/lzw/ftzopen.h b/src/lzw/ftzopen.h new file mode 100644 index 0000000..f7d2936 --- /dev/null +++ b/src/lzw/ftzopen.h @@ -0,0 +1,171 @@ +/***************************************************************************/ +/* */ +/* ftzopen.h */ +/* */ +/* FreeType support for .Z compressed files. */ +/* */ +/* This optional component relies on NetBSD's zopen(). It should mainly */ +/* be used to parse compressed PCF fonts, as found with many X11 server */ +/* distributions. */ +/* */ +/* Copyright 2005, 2006, 2007, 2008 by David Turner. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#ifndef __FT_ZOPEN_H__ +#define __FT_ZOPEN_H__ + +#include <ft2build.h> +#include FT_FREETYPE_H + + + /* + * This is a complete re-implementation of the LZW file reader, + * since the old one was incredibly badly written, using + * 400 KByte of heap memory before decompressing anything. + * + */ + +#define FT_LZW_IN_BUFF_SIZE 64 +#define FT_LZW_DEFAULT_STACK_SIZE 64 + +#define LZW_INIT_BITS 9 +#define LZW_MAX_BITS 16 + +#define LZW_CLEAR 256 +#define LZW_FIRST 257 + +#define LZW_BIT_MASK 0x1f +#define LZW_BLOCK_MASK 0x80 +#define LZW_MASK( n ) ( ( 1U << (n) ) - 1U ) + + + typedef enum FT_LzwPhase_ + { + FT_LZW_PHASE_START = 0, + FT_LZW_PHASE_CODE, + FT_LZW_PHASE_STACK, + FT_LZW_PHASE_EOF + + } FT_LzwPhase; + + + /* + * state of LZW decompressor + * + * small technical note + * -------------------- + * + * We use a few tricks in this implementation that are explained here to + * ease debugging and maintenance. + * + * - First of all, the `prefix' and `suffix' arrays contain the suffix + * and prefix for codes over 256; this means that + * + * prefix_of(code) == state->prefix[code-256] + * suffix_of(code) == state->suffix[code-256] + * + * Each prefix is a 16-bit code, and each suffix an 8-bit byte. + * + * Both arrays are stored in a single memory block, pointed to by + * `state->prefix'. This means that the following equality is always + * true: + * + * state->suffix == (FT_Byte*)(state->prefix + state->prefix_size) + * + * Of course, state->prefix_size is the number of prefix/suffix slots + * in the arrays, corresponding to codes 256..255+prefix_size. + * + * - `free_ent' is the index of the next free entry in the `prefix' + * and `suffix' arrays. This means that the corresponding `next free + * code' is really `256+free_ent'. + * + * Moreover, `max_free' is the maximum value that `free_ent' can reach. + * + * `max_free' corresponds to `(1 << max_bits) - 256'. Note that this + * value is always <= 0xFF00, which means that both `free_ent' and + * `max_free' can be stored in an FT_UInt variable, even on 16-bit + * machines. + * + * If `free_ent == max_free', you cannot add new codes to the + * prefix/suffix table. + * + * - `num_bits' is the current number of code bits, starting at 9 and + * growing each time `free_ent' reaches the value of `free_bits'. The + * latter is computed as follows + * + * if num_bits < max_bits: + * free_bits = (1 << num_bits)-256 + * else: + * free_bits = max_free + 1 + * + * Since the value of `max_free + 1' can never be reached by + * `free_ent', `num_bits' cannot grow larger than `max_bits'. + */ + + typedef struct FT_LzwStateRec_ + { + FT_LzwPhase phase; + FT_Int in_eof; + + FT_Byte buf_tab[16]; + FT_Int buf_offset; + FT_Int buf_size; + FT_Bool buf_clear; + FT_Offset buf_total; + + FT_UInt max_bits; /* max code bits, from file header */ + FT_Int block_mode; /* block mode flag, from file header */ + FT_UInt max_free; /* (1 << max_bits) - 256 */ + + FT_UInt num_bits; /* current code bit number */ + FT_UInt free_ent; /* index of next free entry */ + FT_UInt free_bits; /* if reached by free_ent, increment num_bits */ + FT_UInt old_code; + FT_UInt old_char; + FT_UInt in_code; + + FT_UShort* prefix; /* always dynamically allocated / reallocated */ + FT_Byte* suffix; /* suffix = (FT_Byte*)(prefix + prefix_size) */ + FT_UInt prefix_size; /* number of slots in `prefix' or `suffix' */ + + FT_Byte* stack; /* character stack */ + FT_UInt stack_top; + FT_Offset stack_size; + FT_Byte stack_0[FT_LZW_DEFAULT_STACK_SIZE]; /* minimize heap alloc */ + + FT_Stream source; /* source stream */ + FT_Memory memory; + + } FT_LzwStateRec, *FT_LzwState; + + + FT_LOCAL( void ) + ft_lzwstate_init( FT_LzwState state, + FT_Stream source ); + + FT_LOCAL( void ) + ft_lzwstate_done( FT_LzwState state ); + + + FT_LOCAL( void ) + ft_lzwstate_reset( FT_LzwState state ); + + + FT_LOCAL( FT_ULong ) + ft_lzwstate_io( FT_LzwState state, + FT_Byte* buffer, + FT_ULong out_size ); + +/* */ + +#endif /* __FT_ZOPEN_H__ */ + + +/* END */ diff --git a/src/lzw/rules.mk b/src/lzw/rules.mk new file mode 100644 index 0000000..5550a48 --- /dev/null +++ b/src/lzw/rules.mk @@ -0,0 +1,70 @@ +# +# FreeType 2 LZW support configuration rules +# + + +# Copyright 2004, 2005, 2006 by +# Albert Chin-A-Young. +# +# Based on src/lzw/rules.mk, Copyright 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# LZW driver directory +# +LZW_DIR := $(SRC_DIR)/lzw + + +# compilation flags for the driver +# +LZW_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(LZW_DIR)) + + +# LZW support sources (i.e., C files) +# +LZW_DRV_SRC := $(LZW_DIR)/ftlzw.c + +# LZW support headers +# +LZW_DRV_H := $(LZW_DIR)/ftzopen.h \ + $(LZW_DIR)/ftzopen.c + + +# LZW driver object(s) +# +# LZW_DRV_OBJ_M is used during `multi' builds +# LZW_DRV_OBJ_S is used during `single' builds +# +LZW_DRV_OBJ_M := $(OBJ_DIR)/ftlzw.$O +LZW_DRV_OBJ_S := $(OBJ_DIR)/ftlzw.$O + +# LZW support source file for single build +# +LZW_DRV_SRC_S := $(LZW_DIR)/ftlzw.c + + +# LZW support - single object +# +$(LZW_DRV_OBJ_S): $(LZW_DRV_SRC_S) $(LZW_DRV_SRC) $(FREETYPE_H) $(LZW_DRV_H) + $(LZW_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(LZW_DRV_SRC_S)) + + +# LZW support - multiple objects +# +$(OBJ_DIR)/%.$O: $(LZW_DIR)/%.c $(FREETYPE_H) $(LZW_DRV_H) + $(LZW_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(LZW_DRV_OBJ_S) +DRV_OBJS_M += $(LZW_DRV_OBJ_M) + + +# EOF diff --git a/src/otvalid/Jamfile b/src/otvalid/Jamfile new file mode 100644 index 0000000..b457143 --- /dev/null +++ b/src/otvalid/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/otvalid Jamfile +# +# Copyright 2004 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) otvalid ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = otvbase otvcommn otvgdef otvgpos otvgsub otvjstf otvmod otvmath ; + } + else + { + _sources = otvalid ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/otvalid Jamfile diff --git a/src/otvalid/module.mk b/src/otvalid/module.mk new file mode 100644 index 0000000..9cadde5 --- /dev/null +++ b/src/otvalid/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 otvalid module definition +# + + +# Copyright 2004, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += OTVALID_MODULE + +define OTVALID_MODULE +$(OPEN_DRIVER) FT_Module_Class, otv_module_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)otvalid $(ECHO_DRIVER_DESC)OpenType validation module$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/otvalid/otvalid.c b/src/otvalid/otvalid.c new file mode 100644 index 0000000..d5c2b75 --- /dev/null +++ b/src/otvalid/otvalid.c @@ -0,0 +1,31 @@ +/***************************************************************************/ +/* */ +/* otvalid.c */ +/* */ +/* FreeType validator for OpenType tables (body only). */ +/* */ +/* Copyright 2004, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> + +#include "otvbase.c" +#include "otvcommn.c" +#include "otvgdef.c" +#include "otvgpos.c" +#include "otvgsub.c" +#include "otvjstf.c" +#include "otvmath.c" +#include "otvmod.c" + +/* END */ diff --git a/src/otvalid/otvalid.h b/src/otvalid/otvalid.h new file mode 100644 index 0000000..eb99b9c --- /dev/null +++ b/src/otvalid/otvalid.h @@ -0,0 +1,78 @@ +/***************************************************************************/ +/* */ +/* otvalid.h */ +/* */ +/* OpenType table validation (specification only). */ +/* */ +/* Copyright 2004, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __OTVALID_H__ +#define __OTVALID_H__ + + +#include <ft2build.h> +#include FT_FREETYPE_H + +#include "otverror.h" /* must come before FT_INTERNAL_VALIDATE_H */ + +#include FT_INTERNAL_VALIDATE_H +#include FT_INTERNAL_STREAM_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( void ) + otv_BASE_validate( FT_Bytes table, + FT_Validator valid ); + + /* GSUB and GPOS tables should already be validated; */ + /* if missing, set corresponding argument to 0 */ + FT_LOCAL( void ) + otv_GDEF_validate( FT_Bytes table, + FT_Bytes gsub, + FT_Bytes gpos, + FT_UInt glyph_count, + FT_Validator valid ); + + FT_LOCAL( void ) + otv_GPOS_validate( FT_Bytes table, + FT_UInt glyph_count, + FT_Validator valid ); + + FT_LOCAL( void ) + otv_GSUB_validate( FT_Bytes table, + FT_UInt glyph_count, + FT_Validator valid ); + + /* GSUB and GPOS tables should already be validated; */ + /* if missing, set corresponding argument to 0 */ + FT_LOCAL( void ) + otv_JSTF_validate( FT_Bytes table, + FT_Bytes gsub, + FT_Bytes gpos, + FT_UInt glyph_count, + FT_Validator valid ); + + FT_LOCAL( void ) + otv_MATH_validate( FT_Bytes table, + FT_UInt glyph_count, + FT_Validator ftvalid ); + + +FT_END_HEADER + +#endif /* __OTVALID_H__ */ + + +/* END */ diff --git a/src/otvalid/otvbase.c b/src/otvalid/otvbase.c new file mode 100644 index 0000000..d742d2d --- /dev/null +++ b/src/otvalid/otvbase.c @@ -0,0 +1,318 @@ +/***************************************************************************/ +/* */ +/* otvbase.c */ +/* */ +/* OpenType BASE table validation (body). */ +/* */ +/* Copyright 2004, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvalid.h" +#include "otvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvbase + + + static void + otv_BaseCoord_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt BaseCoordFormat; + + + OTV_NAME_ENTER( "BaseCoord" ); + + OTV_LIMIT_CHECK( 4 ); + BaseCoordFormat = FT_NEXT_USHORT( p ); + p += 2; /* skip Coordinate */ + + OTV_TRACE(( " (format %d)\n", BaseCoordFormat )); + + switch ( BaseCoordFormat ) + { + case 1: /* BaseCoordFormat1 */ + break; + + case 2: /* BaseCoordFormat2 */ + OTV_LIMIT_CHECK( 4 ); /* ReferenceGlyph, BaseCoordPoint */ + break; + + case 3: /* BaseCoordFormat3 */ + OTV_LIMIT_CHECK( 2 ); + /* DeviceTable */ + otv_Device_validate( table + FT_NEXT_USHORT( p ), valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + static void + otv_BaseTagList_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt BaseTagCount; + + + OTV_NAME_ENTER( "BaseTagList" ); + + OTV_LIMIT_CHECK( 2 ); + + BaseTagCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BaseTagCount = %d)\n", BaseTagCount )); + + OTV_LIMIT_CHECK( BaseTagCount * 4 ); /* BaselineTag */ + + OTV_EXIT; + } + + + static void + otv_BaseValues_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt BaseCoordCount; + + + OTV_NAME_ENTER( "BaseValues" ); + + OTV_LIMIT_CHECK( 4 ); + + p += 2; /* skip DefaultIndex */ + BaseCoordCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BaseCoordCount = %d)\n", BaseCoordCount )); + + OTV_LIMIT_CHECK( BaseCoordCount * 2 ); + + /* BaseCoord */ + for ( ; BaseCoordCount > 0; BaseCoordCount-- ) + otv_BaseCoord_validate( table + FT_NEXT_USHORT( p ), valid ); + + OTV_EXIT; + } + + + static void + otv_MinMax_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt table_size; + FT_UInt FeatMinMaxCount; + + OTV_OPTIONAL_TABLE( MinCoord ); + OTV_OPTIONAL_TABLE( MaxCoord ); + + + OTV_NAME_ENTER( "MinMax" ); + + OTV_LIMIT_CHECK( 6 ); + + OTV_OPTIONAL_OFFSET( MinCoord ); + OTV_OPTIONAL_OFFSET( MaxCoord ); + FeatMinMaxCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (FeatMinMaxCount = %d)\n", FeatMinMaxCount )); + + table_size = FeatMinMaxCount * 8 + 6; + + OTV_SIZE_CHECK( MinCoord ); + if ( MinCoord ) + otv_BaseCoord_validate( table + MinCoord, valid ); + + OTV_SIZE_CHECK( MaxCoord ); + if ( MaxCoord ) + otv_BaseCoord_validate( table + MaxCoord, valid ); + + OTV_LIMIT_CHECK( FeatMinMaxCount * 8 ); + + /* FeatMinMaxRecord */ + for ( ; FeatMinMaxCount > 0; FeatMinMaxCount-- ) + { + p += 4; /* skip FeatureTableTag */ + + OTV_OPTIONAL_OFFSET( MinCoord ); + OTV_OPTIONAL_OFFSET( MaxCoord ); + + OTV_SIZE_CHECK( MinCoord ); + if ( MinCoord ) + otv_BaseCoord_validate( table + MinCoord, valid ); + + OTV_SIZE_CHECK( MaxCoord ); + if ( MaxCoord ) + otv_BaseCoord_validate( table + MaxCoord, valid ); + } + + OTV_EXIT; + } + + + static void + otv_BaseScript_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt table_size; + FT_UInt BaseLangSysCount; + + OTV_OPTIONAL_TABLE( BaseValues ); + OTV_OPTIONAL_TABLE( DefaultMinMax ); + + + OTV_NAME_ENTER( "BaseScript" ); + + OTV_LIMIT_CHECK( 6 ); + OTV_OPTIONAL_OFFSET( BaseValues ); + OTV_OPTIONAL_OFFSET( DefaultMinMax ); + BaseLangSysCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BaseLangSysCount = %d)\n", BaseLangSysCount )); + + table_size = BaseLangSysCount * 6 + 6; + + OTV_SIZE_CHECK( BaseValues ); + if ( BaseValues ) + otv_BaseValues_validate( table + BaseValues, valid ); + + OTV_SIZE_CHECK( DefaultMinMax ); + if ( DefaultMinMax ) + otv_MinMax_validate( table + DefaultMinMax, valid ); + + OTV_LIMIT_CHECK( BaseLangSysCount * 6 ); + + /* BaseLangSysRecord */ + for ( ; BaseLangSysCount > 0; BaseLangSysCount-- ) + { + p += 4; /* skip BaseLangSysTag */ + + otv_MinMax_validate( table + FT_NEXT_USHORT( p ), valid ); + } + + OTV_EXIT; + } + + + static void + otv_BaseScriptList_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt BaseScriptCount; + + + OTV_NAME_ENTER( "BaseScriptList" ); + + OTV_LIMIT_CHECK( 2 ); + BaseScriptCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BaseScriptCount = %d)\n", BaseScriptCount )); + + OTV_LIMIT_CHECK( BaseScriptCount * 6 ); + + /* BaseScriptRecord */ + for ( ; BaseScriptCount > 0; BaseScriptCount-- ) + { + p += 4; /* skip BaseScriptTag */ + + /* BaseScript */ + otv_BaseScript_validate( table + FT_NEXT_USHORT( p ), valid ); + } + + OTV_EXIT; + } + + + static void + otv_Axis_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt table_size; + + OTV_OPTIONAL_TABLE( BaseTagList ); + + + OTV_NAME_ENTER( "Axis" ); + + OTV_LIMIT_CHECK( 4 ); + OTV_OPTIONAL_OFFSET( BaseTagList ); + + table_size = 4; + + OTV_SIZE_CHECK( BaseTagList ); + if ( BaseTagList ) + otv_BaseTagList_validate( table + BaseTagList, valid ); + + /* BaseScriptList */ + otv_BaseScriptList_validate( table + FT_NEXT_USHORT( p ), valid ); + + OTV_EXIT; + } + + + FT_LOCAL_DEF( void ) + otv_BASE_validate( FT_Bytes table, + FT_Validator ftvalid ) + { + OTV_ValidatorRec validrec; + OTV_Validator valid = &validrec; + FT_Bytes p = table; + FT_UInt table_size; + + OTV_OPTIONAL_TABLE( HorizAxis ); + OTV_OPTIONAL_TABLE( VertAxis ); + + + valid->root = ftvalid; + + FT_TRACE3(( "validating BASE table\n" )); + OTV_INIT; + + OTV_LIMIT_CHECK( 6 ); + + if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ + FT_INVALID_FORMAT; + + table_size = 6; + + OTV_OPTIONAL_OFFSET( HorizAxis ); + OTV_SIZE_CHECK( HorizAxis ); + if ( HorizAxis ) + otv_Axis_validate( table + HorizAxis, valid ); + + OTV_OPTIONAL_OFFSET( VertAxis ); + OTV_SIZE_CHECK( VertAxis ); + if ( VertAxis ) + otv_Axis_validate( table + VertAxis, valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/otvalid/otvcommn.c b/src/otvalid/otvcommn.c new file mode 100644 index 0000000..a4f885b --- /dev/null +++ b/src/otvalid/otvcommn.c @@ -0,0 +1,1086 @@ +/***************************************************************************/ +/* */ +/* otvcommn.c */ +/* */ +/* OpenType common tables validation (body). */ +/* */ +/* Copyright 2004, 2005, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvcommon + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** COVERAGE TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + otv_Coverage_validate( FT_Bytes table, + OTV_Validator valid, + FT_Int expected_count ) + { + FT_Bytes p = table; + FT_UInt CoverageFormat; + FT_UInt total = 0; + + + OTV_NAME_ENTER( "Coverage" ); + + OTV_LIMIT_CHECK( 4 ); + CoverageFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", CoverageFormat )); + + switch ( CoverageFormat ) + { + case 1: /* CoverageFormat1 */ + { + FT_UInt GlyphCount; + FT_UInt i; + + + GlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (GlyphCount = %d)\n", GlyphCount )); + + OTV_LIMIT_CHECK( GlyphCount * 2 ); /* GlyphArray */ + + for ( i = 0; i < GlyphCount; ++i ) + { + FT_UInt gid; + + + gid = FT_NEXT_USHORT( p ); + if ( gid >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + } + + total = GlyphCount; + } + break; + + case 2: /* CoverageFormat2 */ + { + FT_UInt n, RangeCount; + FT_UInt Start, End, StartCoverageIndex, last = 0; + + + RangeCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (RangeCount = %d)\n", RangeCount )); + + OTV_LIMIT_CHECK( RangeCount * 6 ); + + /* RangeRecord */ + for ( n = 0; n < RangeCount; n++ ) + { + Start = FT_NEXT_USHORT( p ); + End = FT_NEXT_USHORT( p ); + StartCoverageIndex = FT_NEXT_USHORT( p ); + + if ( Start > End || StartCoverageIndex != total ) + FT_INVALID_DATA; + + if ( End >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + + if ( n > 0 && Start <= last ) + FT_INVALID_DATA; + + total += End - Start + 1; + last = End; + } + } + break; + + default: + FT_INVALID_FORMAT; + } + + /* Generally, a coverage table offset has an associated count field. */ + /* The number of glyphs in the table should match this field. If */ + /* there is no associated count, a value of -1 tells us not to check. */ + if ( expected_count != -1 && (FT_UInt)expected_count != total ) + FT_INVALID_DATA; + + OTV_EXIT; + } + + + FT_LOCAL_DEF( FT_UInt ) + otv_Coverage_get_first( FT_Bytes table ) + { + FT_Bytes p = table; + + + p += 4; /* skip CoverageFormat and Glyph/RangeCount */ + + return FT_NEXT_USHORT( p ); + } + + + FT_LOCAL_DEF( FT_UInt ) + otv_Coverage_get_last( FT_Bytes table ) + { + FT_Bytes p = table; + FT_UInt CoverageFormat = FT_NEXT_USHORT( p ); + FT_UInt count = FT_NEXT_USHORT( p ); /* Glyph/RangeCount */ + FT_UInt result = 0; + + + switch ( CoverageFormat ) + { + case 1: + p += ( count - 1 ) * 2; + result = FT_NEXT_USHORT( p ); + break; + + case 2: + p += ( count - 1 ) * 6 + 2; + result = FT_NEXT_USHORT( p ); + break; + + default: + ; + } + + return result; + } + + + FT_LOCAL_DEF( FT_UInt ) + otv_Coverage_get_count( FT_Bytes table ) + { + FT_Bytes p = table; + FT_UInt CoverageFormat = FT_NEXT_USHORT( p ); + FT_UInt count = FT_NEXT_USHORT( p ); /* Glyph/RangeCount */ + FT_UInt result = 0; + + + switch ( CoverageFormat ) + { + case 1: + return count; + + case 2: + { + FT_UInt Start, End; + + + for ( ; count > 0; count-- ) + { + Start = FT_NEXT_USHORT( p ); + End = FT_NEXT_USHORT( p ); + p += 2; /* skip StartCoverageIndex */ + + result += End - Start + 1; + } + } + break; + + default: + ; + } + + return result; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CLASS DEFINITION TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + otv_ClassDef_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt ClassFormat; + + + OTV_NAME_ENTER( "ClassDef" ); + + OTV_LIMIT_CHECK( 4 ); + ClassFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", ClassFormat )); + + switch ( ClassFormat ) + { + case 1: /* ClassDefFormat1 */ + { + FT_UInt StartGlyph; + FT_UInt GlyphCount; + + + OTV_LIMIT_CHECK( 4 ); + + StartGlyph = FT_NEXT_USHORT( p ); + GlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (GlyphCount = %d)\n", GlyphCount )); + + OTV_LIMIT_CHECK( GlyphCount * 2 ); /* ClassValueArray */ + + if ( StartGlyph + GlyphCount - 1 >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + } + break; + + case 2: /* ClassDefFormat2 */ + { + FT_UInt n, ClassRangeCount; + FT_UInt Start, End, last = 0; + + + ClassRangeCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ClassRangeCount = %d)\n", ClassRangeCount )); + + OTV_LIMIT_CHECK( ClassRangeCount * 6 ); + + /* ClassRangeRecord */ + for ( n = 0; n < ClassRangeCount; n++ ) + { + Start = FT_NEXT_USHORT( p ); + End = FT_NEXT_USHORT( p ); + p += 2; /* skip Class */ + + if ( Start > End || ( n > 0 && Start <= last ) ) + FT_INVALID_DATA; + + if ( End >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + + last = End; + } + } + break; + + default: + FT_INVALID_FORMAT; + } + + /* no need to check glyph indices used as input to class definition */ + /* tables since even invalid glyph indices return a meaningful result */ + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** DEVICE TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + otv_Device_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt StartSize, EndSize, DeltaFormat, count; + + + OTV_NAME_ENTER( "Device" ); + + OTV_LIMIT_CHECK( 8 ); + StartSize = FT_NEXT_USHORT( p ); + EndSize = FT_NEXT_USHORT( p ); + DeltaFormat = FT_NEXT_USHORT( p ); + + if ( DeltaFormat < 1 || DeltaFormat > 3 ) + FT_INVALID_FORMAT; + + if ( EndSize < StartSize ) + FT_INVALID_DATA; + + count = EndSize - StartSize + 1; + OTV_LIMIT_CHECK( ( 1 << DeltaFormat ) * count / 8 ); /* DeltaValue */ + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LOOKUPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* uses valid->type_count */ + /* uses valid->type_funcs */ + + FT_LOCAL_DEF( void ) + otv_Lookup_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt LookupType, SubTableCount; + OTV_Validate_Func validate; + + + OTV_NAME_ENTER( "Lookup" ); + + OTV_LIMIT_CHECK( 6 ); + LookupType = FT_NEXT_USHORT( p ); + p += 2; /* skip LookupFlag */ + SubTableCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (type %d)\n", LookupType )); + + if ( LookupType == 0 || LookupType > valid->type_count ) + FT_INVALID_DATA; + + validate = valid->type_funcs[LookupType - 1]; + + OTV_TRACE(( " (SubTableCount = %d)\n", SubTableCount )); + + OTV_LIMIT_CHECK( SubTableCount * 2 ); + + /* SubTable */ + for ( ; SubTableCount > 0; SubTableCount-- ) + validate( table + FT_NEXT_USHORT( p ), valid ); + + OTV_EXIT; + } + + + /* uses valid->lookup_count */ + + FT_LOCAL_DEF( void ) + otv_LookupList_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt LookupCount; + + + OTV_NAME_ENTER( "LookupList" ); + + OTV_LIMIT_CHECK( 2 ); + LookupCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (LookupCount = %d)\n", LookupCount )); + + OTV_LIMIT_CHECK( LookupCount * 2 ); + + valid->lookup_count = LookupCount; + + /* Lookup */ + for ( ; LookupCount > 0; LookupCount-- ) + otv_Lookup_validate( table + FT_NEXT_USHORT( p ), valid ); + + OTV_EXIT; + } + + + static FT_UInt + otv_LookupList_get_count( FT_Bytes table ) + { + return FT_NEXT_USHORT( table ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FEATURES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* uses valid->lookup_count */ + + FT_LOCAL_DEF( void ) + otv_Feature_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt LookupCount; + + + OTV_NAME_ENTER( "Feature" ); + + OTV_LIMIT_CHECK( 4 ); + p += 2; /* skip FeatureParams (unused) */ + LookupCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (LookupCount = %d)\n", LookupCount )); + + OTV_LIMIT_CHECK( LookupCount * 2 ); + + /* LookupListIndex */ + for ( ; LookupCount > 0; LookupCount-- ) + if ( FT_NEXT_USHORT( p ) >= valid->lookup_count ) + FT_INVALID_DATA; + + OTV_EXIT; + } + + + static FT_UInt + otv_Feature_get_count( FT_Bytes table ) + { + return FT_NEXT_USHORT( table ); + } + + + /* sets valid->lookup_count */ + + FT_LOCAL_DEF( void ) + otv_FeatureList_validate( FT_Bytes table, + FT_Bytes lookups, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt FeatureCount; + + + OTV_NAME_ENTER( "FeatureList" ); + + OTV_LIMIT_CHECK( 2 ); + FeatureCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (FeatureCount = %d)\n", FeatureCount )); + + OTV_LIMIT_CHECK( FeatureCount * 2 ); + + valid->lookup_count = otv_LookupList_get_count( lookups ); + + /* FeatureRecord */ + for ( ; FeatureCount > 0; FeatureCount-- ) + { + p += 4; /* skip FeatureTag */ + + /* Feature */ + otv_Feature_validate( table + FT_NEXT_USHORT( p ), valid ); + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LANGUAGE SYSTEM *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* uses valid->extra1 (number of features) */ + + FT_LOCAL_DEF( void ) + otv_LangSys_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt ReqFeatureIndex; + FT_UInt FeatureCount; + + + OTV_NAME_ENTER( "LangSys" ); + + OTV_LIMIT_CHECK( 6 ); + p += 2; /* skip LookupOrder (unused) */ + ReqFeatureIndex = FT_NEXT_USHORT( p ); + FeatureCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ReqFeatureIndex = %d)\n", ReqFeatureIndex )); + OTV_TRACE(( " (FeatureCount = %d)\n", FeatureCount )); + + if ( ReqFeatureIndex != 0xFFFFU && ReqFeatureIndex >= valid->extra1 ) + FT_INVALID_DATA; + + OTV_LIMIT_CHECK( FeatureCount * 2 ); + + /* FeatureIndex */ + for ( ; FeatureCount > 0; FeatureCount-- ) + if ( FT_NEXT_USHORT( p ) >= valid->extra1 ) + FT_INVALID_DATA; + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SCRIPTS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + otv_Script_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_UInt DefaultLangSys, LangSysCount; + FT_Bytes p = table; + + + OTV_NAME_ENTER( "Script" ); + + OTV_LIMIT_CHECK( 4 ); + DefaultLangSys = FT_NEXT_USHORT( p ); + LangSysCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (LangSysCount = %d)\n", LangSysCount )); + + if ( DefaultLangSys != 0 ) + otv_LangSys_validate( table + DefaultLangSys, valid ); + + OTV_LIMIT_CHECK( LangSysCount * 6 ); + + /* LangSysRecord */ + for ( ; LangSysCount > 0; LangSysCount-- ) + { + p += 4; /* skip LangSysTag */ + + /* LangSys */ + otv_LangSys_validate( table + FT_NEXT_USHORT( p ), valid ); + } + + OTV_EXIT; + } + + + /* sets valid->extra1 (number of features) */ + + FT_LOCAL_DEF( void ) + otv_ScriptList_validate( FT_Bytes table, + FT_Bytes features, + OTV_Validator valid ) + { + FT_UInt ScriptCount; + FT_Bytes p = table; + + + OTV_NAME_ENTER( "ScriptList" ); + + OTV_LIMIT_CHECK( 2 ); + ScriptCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ScriptCount = %d)\n", ScriptCount )); + + OTV_LIMIT_CHECK( ScriptCount * 6 ); + + valid->extra1 = otv_Feature_get_count( features ); + + /* ScriptRecord */ + for ( ; ScriptCount > 0; ScriptCount-- ) + { + p += 4; /* skip ScriptTag */ + + otv_Script_validate( table + FT_NEXT_USHORT( p ), valid ); /* Script */ + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* + u: uint16 + ux: unit16 [x] + + s: struct + sx: struct [x] + sxy: struct [x], using external y count + + x: uint16 x + + C: Coverage + + O: Offset + On: Offset (NULL) + Ox: Offset [x] + Onx: Offset (NULL) [x] + */ + + FT_LOCAL_DEF( void ) + otv_x_Ox( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Count; + OTV_Validate_Func func; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 2 ); + Count = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count = %d)\n", Count )); + + OTV_LIMIT_CHECK( Count * 2 ); + + valid->nesting_level++; + func = valid->func[valid->nesting_level]; + + for ( ; Count > 0; Count-- ) + func( table + FT_NEXT_USHORT( p ), valid ); + + valid->nesting_level--; + + OTV_EXIT; + } + + + FT_LOCAL_DEF( void ) + otv_u_C_x_Ox( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Count, Coverage; + OTV_Validate_Func func; + + + OTV_ENTER; + + p += 2; /* skip Format */ + + OTV_LIMIT_CHECK( 4 ); + Coverage = FT_NEXT_USHORT( p ); + Count = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count = %d)\n", Count )); + + otv_Coverage_validate( table + Coverage, valid, Count ); + + OTV_LIMIT_CHECK( Count * 2 ); + + valid->nesting_level++; + func = valid->func[valid->nesting_level]; + + for ( ; Count > 0; Count-- ) + func( table + FT_NEXT_USHORT( p ), valid ); + + valid->nesting_level--; + + OTV_EXIT; + } + + + /* uses valid->extra1 (if > 0: array value limit) */ + + FT_LOCAL_DEF( void ) + otv_x_ux( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Count; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 2 ); + Count = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count = %d)\n", Count )); + + OTV_LIMIT_CHECK( Count * 2 ); + + if ( valid->extra1 ) + { + for ( ; Count > 0; Count-- ) + if ( FT_NEXT_USHORT( p ) >= valid->extra1 ) + FT_INVALID_DATA; + } + + OTV_EXIT; + } + + + /* `ux' in the function's name is not really correct since only x-1 */ + /* elements are tested */ + + /* uses valid->extra1 (array value limit) */ + + FT_LOCAL_DEF( void ) + otv_x_y_ux_sy( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Count1, Count2; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 4 ); + Count1 = FT_NEXT_USHORT( p ); + Count2 = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count1 = %d)\n", Count1 )); + OTV_TRACE(( " (Count2 = %d)\n", Count2 )); + + if ( Count1 == 0 ) + FT_INVALID_DATA; + + OTV_LIMIT_CHECK( ( Count1 - 1 ) * 2 + Count2 * 4 ); + p += ( Count1 - 1 ) * 2; + + for ( ; Count2 > 0; Count2-- ) + { + if ( FT_NEXT_USHORT( p ) >= Count1 ) + FT_INVALID_DATA; + + if ( FT_NEXT_USHORT( p ) >= valid->extra1 ) + FT_INVALID_DATA; + } + + OTV_EXIT; + } + + + /* `uy' in the function's name is not really correct since only y-1 */ + /* elements are tested */ + + /* uses valid->extra1 (array value limit) */ + + FT_LOCAL_DEF( void ) + otv_x_ux_y_uy_z_uz_p_sp( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt BacktrackCount, InputCount, LookaheadCount; + FT_UInt Count; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 2 ); + BacktrackCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BacktrackCount = %d)\n", BacktrackCount )); + + OTV_LIMIT_CHECK( BacktrackCount * 2 + 2 ); + p += BacktrackCount * 2; + + InputCount = FT_NEXT_USHORT( p ); + if ( InputCount == 0 ) + FT_INVALID_DATA; + + OTV_TRACE(( " (InputCount = %d)\n", InputCount )); + + OTV_LIMIT_CHECK( InputCount * 2 ); + p += ( InputCount - 1 ) * 2; + + LookaheadCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (LookaheadCount = %d)\n", LookaheadCount )); + + OTV_LIMIT_CHECK( LookaheadCount * 2 + 2 ); + p += LookaheadCount * 2; + + Count = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count = %d)\n", Count )); + + OTV_LIMIT_CHECK( Count * 4 ); + + for ( ; Count > 0; Count-- ) + { + if ( FT_NEXT_USHORT( p ) >= InputCount ) + FT_INVALID_DATA; + + if ( FT_NEXT_USHORT( p ) >= valid->extra1 ) + FT_INVALID_DATA; + } + + OTV_EXIT; + } + + + /* sets valid->extra1 (valid->lookup_count) */ + + FT_LOCAL_DEF( void ) + otv_u_O_O_x_Onx( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Coverage, ClassDef, ClassSetCount; + OTV_Validate_Func func; + + + OTV_ENTER; + + p += 2; /* skip Format */ + + OTV_LIMIT_CHECK( 6 ); + Coverage = FT_NEXT_USHORT( p ); + ClassDef = FT_NEXT_USHORT( p ); + ClassSetCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ClassSetCount = %d)\n", ClassSetCount )); + + otv_Coverage_validate( table + Coverage, valid, -1 ); + otv_ClassDef_validate( table + ClassDef, valid ); + + OTV_LIMIT_CHECK( ClassSetCount * 2 ); + + valid->nesting_level++; + func = valid->func[valid->nesting_level]; + valid->extra1 = valid->lookup_count; + + for ( ; ClassSetCount > 0; ClassSetCount-- ) + { + FT_UInt offset = FT_NEXT_USHORT( p ); + + + if ( offset ) + func( table + offset, valid ); + } + + valid->nesting_level--; + + OTV_EXIT; + } + + + /* uses valid->lookup_count */ + + FT_LOCAL_DEF( void ) + otv_u_x_y_Ox_sy( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt GlyphCount, Count, count1; + + + OTV_ENTER; + + p += 2; /* skip Format */ + + OTV_LIMIT_CHECK( 4 ); + GlyphCount = FT_NEXT_USHORT( p ); + Count = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (GlyphCount = %d)\n", GlyphCount )); + OTV_TRACE(( " (Count = %d)\n", Count )); + + OTV_LIMIT_CHECK( GlyphCount * 2 + Count * 4 ); + + for ( count1 = GlyphCount; count1 > 0; count1-- ) + otv_Coverage_validate( table + FT_NEXT_USHORT( p ), valid, -1 ); + + for ( ; Count > 0; Count-- ) + { + if ( FT_NEXT_USHORT( p ) >= GlyphCount ) + FT_INVALID_DATA; + + if ( FT_NEXT_USHORT( p ) >= valid->lookup_count ) + FT_INVALID_DATA; + } + + OTV_EXIT; + } + + + /* sets valid->extra1 (valid->lookup_count) */ + + FT_LOCAL_DEF( void ) + otv_u_O_O_O_O_x_Onx( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Coverage; + FT_UInt BacktrackClassDef, InputClassDef, LookaheadClassDef; + FT_UInt ChainClassSetCount; + OTV_Validate_Func func; + + + OTV_ENTER; + + p += 2; /* skip Format */ + + OTV_LIMIT_CHECK( 10 ); + Coverage = FT_NEXT_USHORT( p ); + BacktrackClassDef = FT_NEXT_USHORT( p ); + InputClassDef = FT_NEXT_USHORT( p ); + LookaheadClassDef = FT_NEXT_USHORT( p ); + ChainClassSetCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ChainClassSetCount = %d)\n", ChainClassSetCount )); + + otv_Coverage_validate( table + Coverage, valid, -1 ); + + otv_ClassDef_validate( table + BacktrackClassDef, valid ); + otv_ClassDef_validate( table + InputClassDef, valid ); + otv_ClassDef_validate( table + LookaheadClassDef, valid ); + + OTV_LIMIT_CHECK( ChainClassSetCount * 2 ); + + valid->nesting_level++; + func = valid->func[valid->nesting_level]; + valid->extra1 = valid->lookup_count; + + for ( ; ChainClassSetCount > 0; ChainClassSetCount-- ) + { + FT_UInt offset = FT_NEXT_USHORT( p ); + + + if ( offset ) + func( table + offset, valid ); + } + + valid->nesting_level--; + + OTV_EXIT; + } + + + /* uses valid->lookup_count */ + + FT_LOCAL_DEF( void ) + otv_u_x_Ox_y_Oy_z_Oz_p_sp( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt BacktrackGlyphCount, InputGlyphCount, LookaheadGlyphCount; + FT_UInt count1, count2; + + + OTV_ENTER; + + p += 2; /* skip Format */ + + OTV_LIMIT_CHECK( 2 ); + BacktrackGlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BacktrackGlyphCount = %d)\n", BacktrackGlyphCount )); + + OTV_LIMIT_CHECK( BacktrackGlyphCount * 2 + 2 ); + + for ( ; BacktrackGlyphCount > 0; BacktrackGlyphCount-- ) + otv_Coverage_validate( table + FT_NEXT_USHORT( p ), valid, -1 ); + + InputGlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (InputGlyphCount = %d)\n", InputGlyphCount )); + + OTV_LIMIT_CHECK( InputGlyphCount * 2 + 2 ); + + for ( count1 = InputGlyphCount; count1 > 0; count1-- ) + otv_Coverage_validate( table + FT_NEXT_USHORT( p ), valid, -1 ); + + LookaheadGlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (LookaheadGlyphCount = %d)\n", LookaheadGlyphCount )); + + OTV_LIMIT_CHECK( LookaheadGlyphCount * 2 + 2 ); + + for ( ; LookaheadGlyphCount > 0; LookaheadGlyphCount-- ) + otv_Coverage_validate( table + FT_NEXT_USHORT( p ), valid, -1 ); + + count2 = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count = %d)\n", count2 )); + + OTV_LIMIT_CHECK( count2 * 4 ); + + for ( ; count2 > 0; count2-- ) + { + if ( FT_NEXT_USHORT( p ) >= InputGlyphCount ) + FT_INVALID_DATA; + + if ( FT_NEXT_USHORT( p ) >= valid->lookup_count ) + FT_INVALID_DATA; + } + + OTV_EXIT; + } + + + FT_LOCAL_DEF( FT_UInt ) + otv_GSUBGPOS_get_Lookup_count( FT_Bytes table ) + { + FT_Bytes p = table + 8; + + + return otv_LookupList_get_count( table + FT_NEXT_USHORT( p ) ); + } + + + FT_LOCAL_DEF( FT_UInt ) + otv_GSUBGPOS_have_MarkAttachmentType_flag( FT_Bytes table ) + { + FT_Bytes p, lookup; + FT_UInt count; + + + if ( !table ) + return 0; + + /* LookupList */ + p = table + 8; + table += FT_NEXT_USHORT( p ); + + /* LookupCount */ + p = table; + count = FT_NEXT_USHORT( p ); + + for ( ; count > 0; count-- ) + { + FT_Bytes oldp; + + + /* Lookup */ + lookup = table + FT_NEXT_USHORT( p ); + + oldp = p; + + /* LookupFlag */ + p = lookup + 2; + if ( FT_NEXT_USHORT( p ) & 0xFF00U ) + return 1; + + p = oldp; + } + + return 0; + } + + +/* END */ diff --git a/src/otvalid/otvcommn.h b/src/otvalid/otvcommn.h new file mode 100644 index 0000000..898887f --- /dev/null +++ b/src/otvalid/otvcommn.h @@ -0,0 +1,437 @@ +/***************************************************************************/ +/* */ +/* otvcommn.h */ +/* */ +/* OpenType common tables validation (specification). */ +/* */ +/* Copyright 2004, 2005, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __OTVCOMMN_H__ +#define __OTVCOMMN_H__ + + +#include <ft2build.h> +#include "otvalid.h" +#include FT_INTERNAL_DEBUG_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** VALIDATION *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct OTV_ValidatorRec_* OTV_Validator; + + typedef void (*OTV_Validate_Func)( FT_Bytes table, + OTV_Validator valid ); + + typedef struct OTV_ValidatorRec_ + { + FT_Validator root; + FT_UInt type_count; + OTV_Validate_Func* type_funcs; + + FT_UInt lookup_count; + FT_UInt glyph_count; + + FT_UInt nesting_level; + + OTV_Validate_Func func[3]; + + FT_UInt extra1; /* for passing parameters */ + FT_UInt extra2; + FT_Bytes extra3; + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_UInt debug_indent; + const FT_String* debug_function_name[3]; +#endif + + } OTV_ValidatorRec; + + +#undef FT_INVALID_ +#define FT_INVALID_( _prefix, _error ) \ + ft_validator_error( valid->root, _prefix ## _error ) + +#define OTV_OPTIONAL_TABLE( _table ) FT_UShort _table; \ + FT_Bytes _table ## _p + +#define OTV_OPTIONAL_OFFSET( _offset ) \ + FT_BEGIN_STMNT \ + _offset ## _p = p; \ + _offset = FT_NEXT_USHORT( p ); \ + FT_END_STMNT + +#define OTV_LIMIT_CHECK( _count ) \ + FT_BEGIN_STMNT \ + if ( p + (_count) > valid->root->limit ) \ + FT_INVALID_TOO_SHORT; \ + FT_END_STMNT + +#define OTV_SIZE_CHECK( _size ) \ + FT_BEGIN_STMNT \ + if ( _size > 0 && _size < table_size ) \ + { \ + if ( valid->root->level == FT_VALIDATE_PARANOID ) \ + FT_INVALID_OFFSET; \ + else \ + { \ + /* strip off `const' */ \ + FT_Byte* pp = (FT_Byte*)_size ## _p; \ + \ + \ + FT_TRACE3(( "\n" \ + "Invalid offset to optional table `%s'" \ + " set to zero.\n" \ + "\n", #_size )); \ + \ + /* always assume 16bit entities */ \ + _size = pp[0] = pp[1] = 0; \ + } \ + } \ + FT_END_STMNT + + +#define OTV_NAME_(x) #x +#define OTV_NAME(x) OTV_NAME_(x) + +#define OTV_FUNC_(x) x##Func +#define OTV_FUNC(x) OTV_FUNC_(x) + +#ifdef FT_DEBUG_LEVEL_TRACE + +#define OTV_NEST1( x ) \ + FT_BEGIN_STMNT \ + valid->nesting_level = 0; \ + valid->func[0] = OTV_FUNC( x ); \ + valid->debug_function_name[0] = OTV_NAME( x ); \ + FT_END_STMNT + +#define OTV_NEST2( x, y ) \ + FT_BEGIN_STMNT \ + valid->nesting_level = 0; \ + valid->func[0] = OTV_FUNC( x ); \ + valid->func[1] = OTV_FUNC( y ); \ + valid->debug_function_name[0] = OTV_NAME( x ); \ + valid->debug_function_name[1] = OTV_NAME( y ); \ + FT_END_STMNT + +#define OTV_NEST3( x, y, z ) \ + FT_BEGIN_STMNT \ + valid->nesting_level = 0; \ + valid->func[0] = OTV_FUNC( x ); \ + valid->func[1] = OTV_FUNC( y ); \ + valid->func[2] = OTV_FUNC( z ); \ + valid->debug_function_name[0] = OTV_NAME( x ); \ + valid->debug_function_name[1] = OTV_NAME( y ); \ + valid->debug_function_name[2] = OTV_NAME( z ); \ + FT_END_STMNT + +#define OTV_INIT valid->debug_indent = 0 + +#define OTV_ENTER \ + FT_BEGIN_STMNT \ + valid->debug_indent += 2; \ + FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \ + FT_TRACE4(( "%s table\n", \ + valid->debug_function_name[valid->nesting_level] )); \ + FT_END_STMNT + +#define OTV_NAME_ENTER( name ) \ + FT_BEGIN_STMNT \ + valid->debug_indent += 2; \ + FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \ + FT_TRACE4(( "%s table\n", name )); \ + FT_END_STMNT + +#define OTV_EXIT valid->debug_indent -= 2 + +#define OTV_TRACE( s ) \ + FT_BEGIN_STMNT \ + FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \ + FT_TRACE4( s ); \ + FT_END_STMNT + +#else /* !FT_DEBUG_LEVEL_TRACE */ + +#define OTV_NEST1( x ) \ + FT_BEGIN_STMNT \ + valid->nesting_level = 0; \ + valid->func[0] = OTV_FUNC( x ); \ + FT_END_STMNT + +#define OTV_NEST2( x, y ) \ + FT_BEGIN_STMNT \ + valid->nesting_level = 0; \ + valid->func[0] = OTV_FUNC( x ); \ + valid->func[1] = OTV_FUNC( y ); \ + FT_END_STMNT + +#define OTV_NEST3( x, y, z ) \ + FT_BEGIN_STMNT \ + valid->nesting_level = 0; \ + valid->func[0] = OTV_FUNC( x ); \ + valid->func[1] = OTV_FUNC( y ); \ + valid->func[2] = OTV_FUNC( z ); \ + FT_END_STMNT + +#define OTV_INIT do { } while ( 0 ) +#define OTV_ENTER do { } while ( 0 ) +#define OTV_NAME_ENTER( name ) do { } while ( 0 ) +#define OTV_EXIT do { } while ( 0 ) + +#define OTV_TRACE( s ) do { } while ( 0 ) + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + + +#define OTV_RUN valid->func[0] + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** COVERAGE TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_Coverage_validate( FT_Bytes table, + OTV_Validator valid, + FT_Int expected_count ); + + /* return first covered glyph */ + FT_LOCAL( FT_UInt ) + otv_Coverage_get_first( FT_Bytes table ); + + /* return last covered glyph */ + FT_LOCAL( FT_UInt ) + otv_Coverage_get_last( FT_Bytes table ); + + /* return number of covered glyphs */ + FT_LOCAL( FT_UInt ) + otv_Coverage_get_count( FT_Bytes table ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** CLASS DEFINITION TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_ClassDef_validate( FT_Bytes table, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** DEVICE TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_Device_validate( FT_Bytes table, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LOOKUPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_Lookup_validate( FT_Bytes table, + OTV_Validator valid ); + + FT_LOCAL( void ) + otv_LookupList_validate( FT_Bytes table, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FEATURES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_Feature_validate( FT_Bytes table, + OTV_Validator valid ); + + /* lookups must already be validated */ + FT_LOCAL( void ) + otv_FeatureList_validate( FT_Bytes table, + FT_Bytes lookups, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LANGUAGE SYSTEM *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_LangSys_validate( FT_Bytes table, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SCRIPTS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + otv_Script_validate( FT_Bytes table, + OTV_Validator valid ); + + /* features must already be validated */ + FT_LOCAL( void ) + otv_ScriptList_validate( FT_Bytes table, + FT_Bytes features, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define ChainPosClassSetFunc otv_x_Ox +#define ChainPosRuleSetFunc otv_x_Ox +#define ChainSubClassSetFunc otv_x_Ox +#define ChainSubRuleSetFunc otv_x_Ox +#define JstfLangSysFunc otv_x_Ox +#define JstfMaxFunc otv_x_Ox +#define LigGlyphFunc otv_x_Ox +#define LigatureArrayFunc otv_x_Ox +#define LigatureSetFunc otv_x_Ox +#define PosClassSetFunc otv_x_Ox +#define PosRuleSetFunc otv_x_Ox +#define SubClassSetFunc otv_x_Ox +#define SubRuleSetFunc otv_x_Ox + + FT_LOCAL( void ) + otv_x_Ox ( FT_Bytes table, + OTV_Validator valid ); + +#define AlternateSubstFormat1Func otv_u_C_x_Ox +#define ChainContextPosFormat1Func otv_u_C_x_Ox +#define ChainContextSubstFormat1Func otv_u_C_x_Ox +#define ContextPosFormat1Func otv_u_C_x_Ox +#define ContextSubstFormat1Func otv_u_C_x_Ox +#define LigatureSubstFormat1Func otv_u_C_x_Ox +#define MultipleSubstFormat1Func otv_u_C_x_Ox + + FT_LOCAL( void ) + otv_u_C_x_Ox( FT_Bytes table, + OTV_Validator valid ); + +#define AlternateSetFunc otv_x_ux +#define AttachPointFunc otv_x_ux +#define ExtenderGlyphFunc otv_x_ux +#define JstfGPOSModListFunc otv_x_ux +#define JstfGSUBModListFunc otv_x_ux +#define SequenceFunc otv_x_ux + + FT_LOCAL( void ) + otv_x_ux( FT_Bytes table, + OTV_Validator valid ); + +#define PosClassRuleFunc otv_x_y_ux_sy +#define PosRuleFunc otv_x_y_ux_sy +#define SubClassRuleFunc otv_x_y_ux_sy +#define SubRuleFunc otv_x_y_ux_sy + + FT_LOCAL( void ) + otv_x_y_ux_sy( FT_Bytes table, + OTV_Validator valid ); + +#define ChainPosClassRuleFunc otv_x_ux_y_uy_z_uz_p_sp +#define ChainPosRuleFunc otv_x_ux_y_uy_z_uz_p_sp +#define ChainSubClassRuleFunc otv_x_ux_y_uy_z_uz_p_sp +#define ChainSubRuleFunc otv_x_ux_y_uy_z_uz_p_sp + + FT_LOCAL( void ) + otv_x_ux_y_uy_z_uz_p_sp( FT_Bytes table, + OTV_Validator valid ); + +#define ContextPosFormat2Func otv_u_O_O_x_Onx +#define ContextSubstFormat2Func otv_u_O_O_x_Onx + + FT_LOCAL( void ) + otv_u_O_O_x_Onx( FT_Bytes table, + OTV_Validator valid ); + +#define ContextPosFormat3Func otv_u_x_y_Ox_sy +#define ContextSubstFormat3Func otv_u_x_y_Ox_sy + + FT_LOCAL( void ) + otv_u_x_y_Ox_sy( FT_Bytes table, + OTV_Validator valid ); + +#define ChainContextPosFormat2Func otv_u_O_O_O_O_x_Onx +#define ChainContextSubstFormat2Func otv_u_O_O_O_O_x_Onx + + FT_LOCAL( void ) + otv_u_O_O_O_O_x_Onx( FT_Bytes table, + OTV_Validator valid ); + +#define ChainContextPosFormat3Func otv_u_x_Ox_y_Oy_z_Oz_p_sp +#define ChainContextSubstFormat3Func otv_u_x_Ox_y_Oy_z_Oz_p_sp + + FT_LOCAL( void ) + otv_u_x_Ox_y_Oy_z_Oz_p_sp( FT_Bytes table, + OTV_Validator valid ); + + + FT_LOCAL( FT_UInt ) + otv_GSUBGPOS_get_Lookup_count( FT_Bytes table ); + + FT_LOCAL( FT_UInt ) + otv_GSUBGPOS_have_MarkAttachmentType_flag( FT_Bytes table ); + + /* */ + +FT_END_HEADER + +#endif /* __OTVCOMMN_H__ */ + + +/* END */ diff --git a/src/otvalid/otverror.h b/src/otvalid/otverror.h new file mode 100644 index 0000000..522f4a2 --- /dev/null +++ b/src/otvalid/otverror.h @@ -0,0 +1,44 @@ +/***************************************************************************/ +/* */ +/* otverror.h */ +/* */ +/* OpenType validation module error codes (specification only). */ +/* */ +/* Copyright 2004, 2005, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the OpenType validation module error */ + /* enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __OTVERROR_H__ +#define __OTVERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX OTV_Err_ +#define FT_ERR_BASE FT_Mod_Err_OTvalid + +#define FT_KEEP_ERR_PREFIX + +#include FT_ERRORS_H + +#endif /* __OTVERROR_H__ */ + + +/* END */ diff --git a/src/otvalid/otvgdef.c b/src/otvalid/otvgdef.c new file mode 100644 index 0000000..3633ad0 --- /dev/null +++ b/src/otvalid/otvgdef.c @@ -0,0 +1,224 @@ +/***************************************************************************/ +/* */ +/* otvgdef.c */ +/* */ +/* OpenType GDEF table validation (body). */ +/* */ +/* Copyright 2004, 2005, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvalid.h" +#include "otvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvgdef + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define AttachListFunc otv_O_x_Ox +#define LigCaretListFunc otv_O_x_Ox + + /* sets valid->extra1 (0) */ + + static void + otv_O_x_Ox( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_Bytes Coverage; + FT_UInt GlyphCount; + OTV_Validate_Func func; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 4 ); + Coverage = table + FT_NEXT_USHORT( p ); + GlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (GlyphCount = %d)\n", GlyphCount )); + + otv_Coverage_validate( Coverage, valid, GlyphCount ); + if ( GlyphCount != otv_Coverage_get_count( Coverage ) ) + FT_INVALID_DATA; + + OTV_LIMIT_CHECK( GlyphCount * 2 ); + + valid->nesting_level++; + func = valid->func[valid->nesting_level]; + valid->extra1 = 0; + + for ( ; GlyphCount > 0; GlyphCount-- ) + func( table + FT_NEXT_USHORT( p ), valid ); + + valid->nesting_level--; + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** LIGATURE CARETS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define CaretValueFunc otv_CaretValue_validate + + static void + otv_CaretValue_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt CaretValueFormat; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 4 ); + + CaretValueFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format = %d)\n", CaretValueFormat )); + + switch ( CaretValueFormat ) + { + case 1: /* CaretValueFormat1 */ + /* skip Coordinate, no test */ + break; + + case 2: /* CaretValueFormat2 */ + /* skip CaretValuePoint, no test */ + break; + + case 3: /* CaretValueFormat3 */ + p += 2; /* skip Coordinate */ + + OTV_LIMIT_CHECK( 2 ); + + /* DeviceTable */ + otv_Device_validate( table + FT_NEXT_USHORT( p ), valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GDEF TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->glyph_count */ + + FT_LOCAL_DEF( void ) + otv_GDEF_validate( FT_Bytes table, + FT_Bytes gsub, + FT_Bytes gpos, + FT_UInt glyph_count, + FT_Validator ftvalid ) + { + OTV_ValidatorRec validrec; + OTV_Validator valid = &validrec; + FT_Bytes p = table; + FT_UInt table_size; + FT_Bool need_MarkAttachClassDef; + + OTV_OPTIONAL_TABLE( GlyphClassDef ); + OTV_OPTIONAL_TABLE( AttachListOffset ); + OTV_OPTIONAL_TABLE( LigCaretListOffset ); + OTV_OPTIONAL_TABLE( MarkAttachClassDef ); + + + valid->root = ftvalid; + + FT_TRACE3(( "validating GDEF table\n" )); + OTV_INIT; + + OTV_LIMIT_CHECK( 12 ); + + if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ + FT_INVALID_FORMAT; + + /* MarkAttachClassDef has been added to the OpenType */ + /* specification without increasing GDEF's version, */ + /* so we use this ugly hack to find out whether the */ + /* table is needed actually. */ + + need_MarkAttachClassDef = FT_BOOL( + otv_GSUBGPOS_have_MarkAttachmentType_flag( gsub ) || + otv_GSUBGPOS_have_MarkAttachmentType_flag( gpos ) ); + + if ( need_MarkAttachClassDef ) + table_size = 12; /* OpenType >= 1.2 */ + else + table_size = 10; /* OpenType < 1.2 */ + + valid->glyph_count = glyph_count; + + OTV_OPTIONAL_OFFSET( GlyphClassDef ); + OTV_SIZE_CHECK( GlyphClassDef ); + if ( GlyphClassDef ) + otv_ClassDef_validate( table + GlyphClassDef, valid ); + + OTV_OPTIONAL_OFFSET( AttachListOffset ); + OTV_SIZE_CHECK( AttachListOffset ); + if ( AttachListOffset ) + { + OTV_NEST2( AttachList, AttachPoint ); + OTV_RUN( table + AttachListOffset, valid ); + } + + OTV_OPTIONAL_OFFSET( LigCaretListOffset ); + OTV_SIZE_CHECK( LigCaretListOffset ); + if ( LigCaretListOffset ) + { + OTV_NEST3( LigCaretList, LigGlyph, CaretValue ); + OTV_RUN( table + LigCaretListOffset, valid ); + } + + if ( need_MarkAttachClassDef ) + { + OTV_OPTIONAL_OFFSET( MarkAttachClassDef ); + OTV_SIZE_CHECK( MarkAttachClassDef ); + if ( MarkAttachClassDef ) + otv_ClassDef_validate( table + MarkAttachClassDef, valid ); + } + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/otvalid/otvgpos.c b/src/otvalid/otvgpos.c new file mode 100644 index 0000000..49b4618 --- /dev/null +++ b/src/otvalid/otvgpos.c @@ -0,0 +1,1017 @@ +/***************************************************************************/ +/* */ +/* otvgpos.c */ +/* */ +/* OpenType GPOS table validation (body). */ +/* */ +/* Copyright 2002, 2004, 2005, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvalid.h" +#include "otvcommn.h" +#include "otvgpos.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvgpos + + + static void + otv_Anchor_validate( FT_Bytes table, + OTV_Validator valid ); + + static void + otv_MarkArray_validate( FT_Bytes table, + OTV_Validator valid ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** UTILITY FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define BaseArrayFunc otv_x_sxy +#define LigatureAttachFunc otv_x_sxy +#define Mark2ArrayFunc otv_x_sxy + + /* uses valid->extra1 (counter) */ + /* uses valid->extra2 (boolean to handle NULL anchor field) */ + + static void + otv_x_sxy( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Count, count1, table_size; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 2 ); + + Count = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (Count = %d)\n", Count )); + + OTV_LIMIT_CHECK( Count * valid->extra1 * 2 ); + + table_size = Count * valid->extra1 * 2 + 2; + + for ( ; Count > 0; Count-- ) + for ( count1 = valid->extra1; count1 > 0; count1-- ) + { + OTV_OPTIONAL_TABLE( anchor_offset ); + + + OTV_OPTIONAL_OFFSET( anchor_offset ); + + if ( valid->extra2 ) + { + OTV_SIZE_CHECK( anchor_offset ); + if ( anchor_offset ) + otv_Anchor_validate( table + anchor_offset, valid ); + } + else + otv_Anchor_validate( table + anchor_offset, valid ); + } + + OTV_EXIT; + } + + +#define MarkBasePosFormat1Func otv_u_O_O_u_O_O +#define MarkLigPosFormat1Func otv_u_O_O_u_O_O +#define MarkMarkPosFormat1Func otv_u_O_O_u_O_O + + /* sets valid->extra1 (class count) */ + + static void + otv_u_O_O_u_O_O( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt Coverage1, Coverage2, ClassCount; + FT_UInt Array1, Array2; + OTV_Validate_Func func; + + + OTV_ENTER; + + p += 2; /* skip PosFormat */ + + OTV_LIMIT_CHECK( 10 ); + Coverage1 = FT_NEXT_USHORT( p ); + Coverage2 = FT_NEXT_USHORT( p ); + ClassCount = FT_NEXT_USHORT( p ); + Array1 = FT_NEXT_USHORT( p ); + Array2 = FT_NEXT_USHORT( p ); + + otv_Coverage_validate( table + Coverage1, valid, -1 ); + otv_Coverage_validate( table + Coverage2, valid, -1 ); + + otv_MarkArray_validate( table + Array1, valid ); + + valid->nesting_level++; + func = valid->func[valid->nesting_level]; + valid->extra1 = ClassCount; + + func( table + Array2, valid ); + + valid->nesting_level--; + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** VALUE RECORDS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_UInt + otv_value_length( FT_UInt format ) + { + FT_UInt count; + + + count = ( ( format & 0xAA ) >> 1 ) + ( format & 0x55 ); + count = ( ( count & 0xCC ) >> 2 ) + ( count & 0x33 ); + count = ( ( count & 0xF0 ) >> 4 ) + ( count & 0x0F ); + + return count * 2; + } + + + /* uses valid->extra3 (pointer to base table) */ + + static void + otv_ValueRecord_validate( FT_Bytes table, + FT_UInt format, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt count; + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_Int loop; + FT_ULong res = 0; + + + OTV_NAME_ENTER( "ValueRecord" ); + + /* display `format' in dual representation */ + for ( loop = 7; loop >= 0; loop-- ) + { + res <<= 4; + res += ( format >> loop ) & 1; + } + + OTV_TRACE(( " (format 0b%08lx)\n", res )); +#endif + + if ( format >= 0x100 ) + FT_INVALID_FORMAT; + + for ( count = 4; count > 0; count-- ) + { + if ( format & 1 ) + { + /* XPlacement, YPlacement, XAdvance, YAdvance */ + OTV_LIMIT_CHECK( 2 ); + p += 2; + } + + format >>= 1; + } + + for ( count = 4; count > 0; count-- ) + { + if ( format & 1 ) + { + FT_PtrDist table_size; + + OTV_OPTIONAL_TABLE( device ); + + + /* XPlaDevice, YPlaDevice, XAdvDevice, YAdvDevice */ + OTV_LIMIT_CHECK( 2 ); + OTV_OPTIONAL_OFFSET( device ); + + /* XXX: this value is usually too small, especially if the current */ + /* ValueRecord is part of an array -- getting the correct table */ + /* size is probably not worth the trouble */ + + table_size = p - valid->extra3; + + OTV_SIZE_CHECK( device ); + if ( device ) + otv_Device_validate( valid->extra3 + device, valid ); + } + format >>= 1; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** ANCHORS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_Anchor_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt AnchorFormat; + + + OTV_NAME_ENTER( "Anchor"); + + OTV_LIMIT_CHECK( 6 ); + AnchorFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", AnchorFormat )); + + p += 4; /* skip XCoordinate and YCoordinate */ + + switch ( AnchorFormat ) + { + case 1: + break; + + case 2: + OTV_LIMIT_CHECK( 2 ); /* AnchorPoint */ + break; + + case 3: + { + FT_UInt table_size; + + OTV_OPTIONAL_TABLE( XDeviceTable ); + OTV_OPTIONAL_TABLE( YDeviceTable ); + + + OTV_LIMIT_CHECK( 4 ); + OTV_OPTIONAL_OFFSET( XDeviceTable ); + OTV_OPTIONAL_OFFSET( YDeviceTable ); + + table_size = 6 + 4; + + OTV_SIZE_CHECK( XDeviceTable ); + if ( XDeviceTable ) + otv_Device_validate( table + XDeviceTable, valid ); + + OTV_SIZE_CHECK( YDeviceTable ); + if ( YDeviceTable ) + otv_Device_validate( table + YDeviceTable, valid ); + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MARK ARRAYS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_MarkArray_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt MarkCount; + + + OTV_NAME_ENTER( "MarkArray" ); + + OTV_LIMIT_CHECK( 2 ); + MarkCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (MarkCount = %d)\n", MarkCount )); + + OTV_LIMIT_CHECK( MarkCount * 4 ); + + /* MarkRecord */ + for ( ; MarkCount > 0; MarkCount-- ) + { + p += 2; /* skip Class */ + /* MarkAnchor */ + otv_Anchor_validate( table + FT_NEXT_USHORT( p ), valid ); + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 1 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra3 (pointer to base table) */ + + static void + otv_SinglePos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "SinglePos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + valid->extra3 = table; + + switch ( PosFormat ) + { + case 1: /* SinglePosFormat1 */ + { + FT_UInt Coverage, ValueFormat; + + + OTV_LIMIT_CHECK( 4 ); + Coverage = FT_NEXT_USHORT( p ); + ValueFormat = FT_NEXT_USHORT( p ); + + otv_Coverage_validate( table + Coverage, valid, -1 ); + otv_ValueRecord_validate( p, ValueFormat, valid ); /* Value */ + } + break; + + case 2: /* SinglePosFormat2 */ + { + FT_UInt Coverage, ValueFormat, ValueCount, len_value; + + + OTV_LIMIT_CHECK( 6 ); + Coverage = FT_NEXT_USHORT( p ); + ValueFormat = FT_NEXT_USHORT( p ); + ValueCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ValueCount = %d)\n", ValueCount )); + + len_value = otv_value_length( ValueFormat ); + + otv_Coverage_validate( table + Coverage, valid, ValueCount ); + + OTV_LIMIT_CHECK( ValueCount * len_value ); + + /* Value */ + for ( ; ValueCount > 0; ValueCount-- ) + { + otv_ValueRecord_validate( p, ValueFormat, valid ); + p += len_value; + } + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 2 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_PairSet_validate( FT_Bytes table, + FT_UInt format1, + FT_UInt format2, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt value_len1, value_len2, PairValueCount; + + + OTV_NAME_ENTER( "PairSet" ); + + OTV_LIMIT_CHECK( 2 ); + PairValueCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (PairValueCount = %d)\n", PairValueCount )); + + value_len1 = otv_value_length( format1 ); + value_len2 = otv_value_length( format2 ); + + OTV_LIMIT_CHECK( PairValueCount * ( value_len1 + value_len2 + 2 ) ); + + /* PairValueRecord */ + for ( ; PairValueCount > 0; PairValueCount-- ) + { + p += 2; /* skip SecondGlyph */ + + if ( format1 ) + otv_ValueRecord_validate( p, format1, valid ); /* Value1 */ + p += value_len1; + + if ( format2 ) + otv_ValueRecord_validate( p, format2, valid ); /* Value2 */ + p += value_len2; + } + + OTV_EXIT; + } + + + /* sets valid->extra3 (pointer to base table) */ + + static void + otv_PairPos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "PairPos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + valid->extra3 = table; + + switch ( PosFormat ) + { + case 1: /* PairPosFormat1 */ + { + FT_UInt Coverage, ValueFormat1, ValueFormat2, PairSetCount; + + + OTV_LIMIT_CHECK( 8 ); + Coverage = FT_NEXT_USHORT( p ); + ValueFormat1 = FT_NEXT_USHORT( p ); + ValueFormat2 = FT_NEXT_USHORT( p ); + PairSetCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (PairSetCount = %d)\n", PairSetCount )); + + otv_Coverage_validate( table + Coverage, valid, -1 ); + + OTV_LIMIT_CHECK( PairSetCount * 2 ); + + /* PairSetOffset */ + for ( ; PairSetCount > 0; PairSetCount-- ) + otv_PairSet_validate( table + FT_NEXT_USHORT( p ), + ValueFormat1, ValueFormat2, valid ); + } + break; + + case 2: /* PairPosFormat2 */ + { + FT_UInt Coverage, ValueFormat1, ValueFormat2, ClassDef1, ClassDef2; + FT_UInt ClassCount1, ClassCount2, len_value1, len_value2, count; + + + OTV_LIMIT_CHECK( 14 ); + Coverage = FT_NEXT_USHORT( p ); + ValueFormat1 = FT_NEXT_USHORT( p ); + ValueFormat2 = FT_NEXT_USHORT( p ); + ClassDef1 = FT_NEXT_USHORT( p ); + ClassDef2 = FT_NEXT_USHORT( p ); + ClassCount1 = FT_NEXT_USHORT( p ); + ClassCount2 = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (ClassCount1 = %d)\n", ClassCount1 )); + OTV_TRACE(( " (ClassCount2 = %d)\n", ClassCount2 )); + + len_value1 = otv_value_length( ValueFormat1 ); + len_value2 = otv_value_length( ValueFormat2 ); + + otv_Coverage_validate( table + Coverage, valid, -1 ); + otv_ClassDef_validate( table + ClassDef1, valid ); + otv_ClassDef_validate( table + ClassDef2, valid ); + + OTV_LIMIT_CHECK( ClassCount1 * ClassCount2 * + ( len_value1 + len_value2 ) ); + + /* Class1Record */ + for ( ; ClassCount1 > 0; ClassCount1-- ) + { + /* Class2Record */ + for ( count = ClassCount2; count > 0; count-- ) + { + if ( ValueFormat1 ) + /* Value1 */ + otv_ValueRecord_validate( p, ValueFormat1, valid ); + p += len_value1; + + if ( ValueFormat2 ) + /* Value2 */ + otv_ValueRecord_validate( p, ValueFormat2, valid ); + p += len_value2; + } + } + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 3 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_CursivePos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "CursivePos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: /* CursivePosFormat1 */ + { + FT_UInt table_size; + FT_UInt Coverage, EntryExitCount; + + OTV_OPTIONAL_TABLE( EntryAnchor ); + OTV_OPTIONAL_TABLE( ExitAnchor ); + + + OTV_LIMIT_CHECK( 4 ); + Coverage = FT_NEXT_USHORT( p ); + EntryExitCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (EntryExitCount = %d)\n", EntryExitCount )); + + otv_Coverage_validate( table + Coverage, valid, EntryExitCount ); + + OTV_LIMIT_CHECK( EntryExitCount * 4 ); + + table_size = EntryExitCount * 4 + 4; + + /* EntryExitRecord */ + for ( ; EntryExitCount > 0; EntryExitCount-- ) + { + OTV_OPTIONAL_OFFSET( EntryAnchor ); + OTV_OPTIONAL_OFFSET( ExitAnchor ); + + OTV_SIZE_CHECK( EntryAnchor ); + if ( EntryAnchor ) + otv_Anchor_validate( table + EntryAnchor, valid ); + + OTV_SIZE_CHECK( ExitAnchor ); + if ( ExitAnchor ) + otv_Anchor_validate( table + ExitAnchor, valid ); + } + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 4 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* UNDOCUMENTED (in OpenType 1.5): */ + /* BaseRecord tables can contain NULL pointers. */ + + /* sets valid->extra2 (1) */ + + static void + otv_MarkBasePos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "MarkBasePos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: + valid->extra2 = 1; + OTV_NEST2( MarkBasePosFormat1, BaseArray ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 5 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra2 (1) */ + + static void + otv_MarkLigPos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "MarkLigPos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: + valid->extra2 = 1; + OTV_NEST3( MarkLigPosFormat1, LigatureArray, LigatureAttach ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 6 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra2 (0) */ + + static void + otv_MarkMarkPos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "MarkMarkPos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: + valid->extra2 = 0; + OTV_NEST2( MarkMarkPosFormat1, Mark2Array ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 7 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra1 (lookup count) */ + + static void + otv_ContextPos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "ContextPos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + valid->extra1 = valid->lookup_count; + OTV_NEST3( ContextPosFormat1, PosRuleSet, PosRule ); + OTV_RUN( table, valid ); + break; + + case 2: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + OTV_NEST3( ContextPosFormat2, PosClassSet, PosClassRule ); + OTV_RUN( table, valid ); + break; + + case 3: + OTV_NEST1( ContextPosFormat3 ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 8 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra1 (lookup count) */ + + static void + otv_ChainContextPos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "ChainContextPos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + valid->extra1 = valid->lookup_count; + OTV_NEST3( ChainContextPosFormat1, + ChainPosRuleSet, ChainPosRule ); + OTV_RUN( table, valid ); + break; + + case 2: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + OTV_NEST3( ChainContextPosFormat2, + ChainPosClassSet, ChainPosClassRule ); + OTV_RUN( table, valid ); + break; + + case 3: + OTV_NEST1( ChainContextPosFormat3 ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS LOOKUP TYPE 9 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* uses valid->type_funcs */ + + static void + otv_ExtensionPos_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt PosFormat; + + + OTV_NAME_ENTER( "ExtensionPos" ); + + OTV_LIMIT_CHECK( 2 ); + PosFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", PosFormat )); + + switch ( PosFormat ) + { + case 1: /* ExtensionPosFormat1 */ + { + FT_UInt ExtensionLookupType; + FT_ULong ExtensionOffset; + OTV_Validate_Func validate; + + + OTV_LIMIT_CHECK( 6 ); + ExtensionLookupType = FT_NEXT_USHORT( p ); + ExtensionOffset = FT_NEXT_ULONG( p ); + + if ( ExtensionLookupType == 0 || ExtensionLookupType >= 9 ) + FT_INVALID_DATA; + + validate = valid->type_funcs[ExtensionLookupType - 1]; + validate( table + ExtensionOffset, valid ); + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + static const OTV_Validate_Func otv_gpos_validate_funcs[9] = + { + otv_SinglePos_validate, + otv_PairPos_validate, + otv_CursivePos_validate, + otv_MarkBasePos_validate, + otv_MarkLigPos_validate, + otv_MarkMarkPos_validate, + otv_ContextPos_validate, + otv_ChainContextPos_validate, + otv_ExtensionPos_validate + }; + + + /* sets valid->type_count */ + /* sets valid->type_funcs */ + + FT_LOCAL_DEF( void ) + otv_GPOS_subtable_validate( FT_Bytes table, + OTV_Validator valid ) + { + valid->type_count = 9; + valid->type_funcs = (OTV_Validate_Func*)otv_gpos_validate_funcs; + + otv_Lookup_validate( table, valid ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GPOS TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->glyph_count */ + + FT_LOCAL_DEF( void ) + otv_GPOS_validate( FT_Bytes table, + FT_UInt glyph_count, + FT_Validator ftvalid ) + { + OTV_ValidatorRec validrec; + OTV_Validator valid = &validrec; + FT_Bytes p = table; + FT_UInt ScriptList, FeatureList, LookupList; + + + valid->root = ftvalid; + + FT_TRACE3(( "validating GPOS table\n" )); + OTV_INIT; + + OTV_LIMIT_CHECK( 10 ); + + if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ + FT_INVALID_FORMAT; + + ScriptList = FT_NEXT_USHORT( p ); + FeatureList = FT_NEXT_USHORT( p ); + LookupList = FT_NEXT_USHORT( p ); + + valid->type_count = 9; + valid->type_funcs = (OTV_Validate_Func*)otv_gpos_validate_funcs; + valid->glyph_count = glyph_count; + + otv_LookupList_validate( table + LookupList, + valid ); + otv_FeatureList_validate( table + FeatureList, table + LookupList, + valid ); + otv_ScriptList_validate( table + ScriptList, table + FeatureList, + valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/otvalid/otvgpos.h b/src/otvalid/otvgpos.h new file mode 100644 index 0000000..14ca408 --- /dev/null +++ b/src/otvalid/otvgpos.h @@ -0,0 +1,36 @@ +/***************************************************************************/ +/* */ +/* otvgpos.h */ +/* */ +/* OpenType GPOS table validator (specification). */ +/* */ +/* Copyright 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __OTVGPOS_H__ +#define __OTVGPOS_H__ + + +FT_BEGIN_HEADER + + + FT_LOCAL( void ) + otv_GPOS_subtable_validate( FT_Bytes table, + OTV_Validator valid ); + + +FT_END_HEADER + +#endif /* __OTVGPOS_H__ */ + + +/* END */ diff --git a/src/otvalid/otvgsub.c b/src/otvalid/otvgsub.c new file mode 100644 index 0000000..ed499d1 --- /dev/null +++ b/src/otvalid/otvgsub.c @@ -0,0 +1,585 @@ +/***************************************************************************/ +/* */ +/* otvgsub.c */ +/* */ +/* OpenType GSUB table validation (body). */ +/* */ +/* Copyright 2004, 2005, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvalid.h" +#include "otvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvgsub + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 1 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* uses valid->glyph_count */ + + static void + otv_SingleSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "SingleSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: /* SingleSubstFormat1 */ + { + FT_Bytes Coverage; + FT_Int DeltaGlyphID; + FT_Long idx; + + + OTV_LIMIT_CHECK( 4 ); + Coverage = table + FT_NEXT_USHORT( p ); + DeltaGlyphID = FT_NEXT_SHORT( p ); + + otv_Coverage_validate( Coverage, valid, -1 ); + + idx = otv_Coverage_get_first( Coverage ) + DeltaGlyphID; + if ( idx < 0 ) + FT_INVALID_DATA; + + idx = otv_Coverage_get_last( Coverage ) + DeltaGlyphID; + if ( (FT_UInt)idx >= valid->glyph_count ) + FT_INVALID_DATA; + } + break; + + case 2: /* SingleSubstFormat2 */ + { + FT_UInt Coverage, GlyphCount; + + + OTV_LIMIT_CHECK( 4 ); + Coverage = FT_NEXT_USHORT( p ); + GlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (GlyphCount = %d)\n", GlyphCount )); + + otv_Coverage_validate( table + Coverage, valid, GlyphCount ); + + OTV_LIMIT_CHECK( GlyphCount * 2 ); + + /* Substitute */ + for ( ; GlyphCount > 0; GlyphCount-- ) + if ( FT_NEXT_USHORT( p ) >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 2 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra1 (glyph count) */ + + static void + otv_MultipleSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "MultipleSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: + valid->extra1 = valid->glyph_count; + OTV_NEST2( MultipleSubstFormat1, Sequence ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 3 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra1 (glyph count) */ + + static void + otv_AlternateSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "AlternateSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: + valid->extra1 = valid->glyph_count; + OTV_NEST2( AlternateSubstFormat1, AlternateSet ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 4 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define LigatureFunc otv_Ligature_validate + + /* uses valid->glyph_count */ + + static void + otv_Ligature_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt LigatureGlyph, CompCount; + + + OTV_ENTER; + + OTV_LIMIT_CHECK( 4 ); + LigatureGlyph = FT_NEXT_USHORT( p ); + if ( LigatureGlyph >= valid->glyph_count ) + FT_INVALID_DATA; + + CompCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (CompCount = %d)\n", CompCount )); + + if ( CompCount == 0 ) + FT_INVALID_DATA; + + CompCount--; + + OTV_LIMIT_CHECK( CompCount * 2 ); /* Component */ + + /* no need to check the Component glyph indices */ + + OTV_EXIT; + } + + + static void + otv_LigatureSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "LigatureSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: + OTV_NEST3( LigatureSubstFormat1, LigatureSet, Ligature ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 5 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra1 (lookup count) */ + + static void + otv_ContextSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "ContextSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + valid->extra1 = valid->lookup_count; + OTV_NEST3( ContextSubstFormat1, SubRuleSet, SubRule ); + OTV_RUN( table, valid ); + break; + + case 2: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + OTV_NEST3( ContextSubstFormat2, SubClassSet, SubClassRule ); + OTV_RUN( table, valid ); + break; + + case 3: + OTV_NEST1( ContextSubstFormat3 ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 6 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->extra1 (lookup count) */ + + static void + otv_ChainContextSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "ChainContextSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + valid->extra1 = valid->lookup_count; + OTV_NEST3( ChainContextSubstFormat1, + ChainSubRuleSet, ChainSubRule ); + OTV_RUN( table, valid ); + break; + + case 2: + /* no need to check glyph indices/classes used as input for these */ + /* context rules since even invalid glyph indices/classes return */ + /* meaningful results */ + + OTV_NEST3( ChainContextSubstFormat2, + ChainSubClassSet, ChainSubClassRule ); + OTV_RUN( table, valid ); + break; + + case 3: + OTV_NEST1( ChainContextSubstFormat3 ); + OTV_RUN( table, valid ); + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 7 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* uses valid->type_funcs */ + + static void + otv_ExtensionSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt SubstFormat; + + + OTV_NAME_ENTER( "ExtensionSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: /* ExtensionSubstFormat1 */ + { + FT_UInt ExtensionLookupType; + FT_ULong ExtensionOffset; + OTV_Validate_Func validate; + + + OTV_LIMIT_CHECK( 6 ); + ExtensionLookupType = FT_NEXT_USHORT( p ); + ExtensionOffset = FT_NEXT_ULONG( p ); + + if ( ExtensionLookupType == 0 || + ExtensionLookupType == 7 || + ExtensionLookupType > 8 ) + FT_INVALID_DATA; + + validate = valid->type_funcs[ExtensionLookupType - 1]; + validate( table + ExtensionOffset, valid ); + } + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB LOOKUP TYPE 8 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* uses valid->glyph_count */ + + static void + otv_ReverseChainSingleSubst_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table, Coverage; + FT_UInt SubstFormat; + FT_UInt BacktrackGlyphCount, LookaheadGlyphCount, GlyphCount; + + + OTV_NAME_ENTER( "ReverseChainSingleSubst" ); + + OTV_LIMIT_CHECK( 2 ); + SubstFormat = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (format %d)\n", SubstFormat )); + + switch ( SubstFormat ) + { + case 1: /* ReverseChainSingleSubstFormat1 */ + OTV_LIMIT_CHECK( 4 ); + Coverage = table + FT_NEXT_USHORT( p ); + BacktrackGlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (BacktrackGlyphCount = %d)\n", BacktrackGlyphCount )); + + otv_Coverage_validate( Coverage, valid, -1 ); + + OTV_LIMIT_CHECK( BacktrackGlyphCount * 2 + 2 ); + + for ( ; BacktrackGlyphCount > 0; BacktrackGlyphCount-- ) + otv_Coverage_validate( table + FT_NEXT_USHORT( p ), valid, -1 ); + + LookaheadGlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (LookaheadGlyphCount = %d)\n", LookaheadGlyphCount )); + + OTV_LIMIT_CHECK( LookaheadGlyphCount * 2 + 2 ); + + for ( ; LookaheadGlyphCount > 0; LookaheadGlyphCount-- ) + otv_Coverage_validate( table + FT_NEXT_USHORT( p ), valid, -1 ); + + GlyphCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (GlyphCount = %d)\n", GlyphCount )); + + if ( GlyphCount != otv_Coverage_get_count( Coverage ) ) + FT_INVALID_DATA; + + OTV_LIMIT_CHECK( GlyphCount * 2 ); + + /* Substitute */ + for ( ; GlyphCount > 0; GlyphCount-- ) + if ( FT_NEXT_USHORT( p ) >= valid->glyph_count ) + FT_INVALID_DATA; + + break; + + default: + FT_INVALID_FORMAT; + } + + OTV_EXIT; + } + + + static const OTV_Validate_Func otv_gsub_validate_funcs[8] = + { + otv_SingleSubst_validate, + otv_MultipleSubst_validate, + otv_AlternateSubst_validate, + otv_LigatureSubst_validate, + otv_ContextSubst_validate, + otv_ChainContextSubst_validate, + otv_ExtensionSubst_validate, + otv_ReverseChainSingleSubst_validate + }; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GSUB TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->type_count */ + /* sets valid->type_funcs */ + /* sets valid->glyph_count */ + + FT_LOCAL_DEF( void ) + otv_GSUB_validate( FT_Bytes table, + FT_UInt glyph_count, + FT_Validator ftvalid ) + { + OTV_ValidatorRec validrec; + OTV_Validator valid = &validrec; + FT_Bytes p = table; + FT_UInt ScriptList, FeatureList, LookupList; + + + valid->root = ftvalid; + + FT_TRACE3(( "validating GSUB table\n" )); + OTV_INIT; + + OTV_LIMIT_CHECK( 10 ); + + if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ + FT_INVALID_FORMAT; + + ScriptList = FT_NEXT_USHORT( p ); + FeatureList = FT_NEXT_USHORT( p ); + LookupList = FT_NEXT_USHORT( p ); + + valid->type_count = 8; + valid->type_funcs = (OTV_Validate_Func*)otv_gsub_validate_funcs; + valid->glyph_count = glyph_count; + + otv_LookupList_validate( table + LookupList, + valid ); + otv_FeatureList_validate( table + FeatureList, table + LookupList, + valid ); + otv_ScriptList_validate( table + ScriptList, table + FeatureList, + valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/otvalid/otvjstf.c b/src/otvalid/otvjstf.c new file mode 100644 index 0000000..a616a23 --- /dev/null +++ b/src/otvalid/otvjstf.c @@ -0,0 +1,258 @@ +/***************************************************************************/ +/* */ +/* otvjstf.c */ +/* */ +/* OpenType JSTF table validation (body). */ +/* */ +/* Copyright 2004, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvalid.h" +#include "otvcommn.h" +#include "otvgpos.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvjstf + + +#define JstfPriorityFunc otv_JstfPriority_validate +#define JstfLookupFunc otv_GPOS_subtable_validate + + /* uses valid->extra1 (GSUB lookup count) */ + /* uses valid->extra2 (GPOS lookup count) */ + /* sets valid->extra1 (counter) */ + + static void + otv_JstfPriority_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt table_size; + FT_UInt gsub_lookup_count, gpos_lookup_count; + + OTV_OPTIONAL_TABLE( ShrinkageEnableGSUB ); + OTV_OPTIONAL_TABLE( ShrinkageDisableGSUB ); + OTV_OPTIONAL_TABLE( ShrinkageEnableGPOS ); + OTV_OPTIONAL_TABLE( ShrinkageDisableGPOS ); + OTV_OPTIONAL_TABLE( ExtensionEnableGSUB ); + OTV_OPTIONAL_TABLE( ExtensionDisableGSUB ); + OTV_OPTIONAL_TABLE( ExtensionEnableGPOS ); + OTV_OPTIONAL_TABLE( ExtensionDisableGPOS ); + OTV_OPTIONAL_TABLE( ShrinkageJstfMax ); + OTV_OPTIONAL_TABLE( ExtensionJstfMax ); + + + OTV_ENTER; + OTV_TRACE(( "JstfPriority table\n" )); + + OTV_LIMIT_CHECK( 20 ); + + gsub_lookup_count = valid->extra1; + gpos_lookup_count = valid->extra2; + + table_size = 20; + + valid->extra1 = gsub_lookup_count; + + OTV_OPTIONAL_OFFSET( ShrinkageEnableGSUB ); + OTV_SIZE_CHECK( ShrinkageEnableGSUB ); + if ( ShrinkageEnableGSUB ) + otv_x_ux( table + ShrinkageEnableGSUB, valid ); + + OTV_OPTIONAL_OFFSET( ShrinkageDisableGSUB ); + OTV_SIZE_CHECK( ShrinkageDisableGSUB ); + if ( ShrinkageDisableGSUB ) + otv_x_ux( table + ShrinkageDisableGSUB, valid ); + + valid->extra1 = gpos_lookup_count; + + OTV_OPTIONAL_OFFSET( ShrinkageEnableGPOS ); + OTV_SIZE_CHECK( ShrinkageEnableGPOS ); + if ( ShrinkageEnableGPOS ) + otv_x_ux( table + ShrinkageEnableGPOS, valid ); + + OTV_OPTIONAL_OFFSET( ShrinkageDisableGPOS ); + OTV_SIZE_CHECK( ShrinkageDisableGPOS ); + if ( ShrinkageDisableGPOS ) + otv_x_ux( table + ShrinkageDisableGPOS, valid ); + + OTV_OPTIONAL_OFFSET( ShrinkageJstfMax ); + OTV_SIZE_CHECK( ShrinkageJstfMax ); + if ( ShrinkageJstfMax ) + { + /* XXX: check lookup types? */ + OTV_NEST2( JstfMax, JstfLookup ); + OTV_RUN( table + ShrinkageJstfMax, valid ); + } + + valid->extra1 = gsub_lookup_count; + + OTV_OPTIONAL_OFFSET( ExtensionEnableGSUB ); + OTV_SIZE_CHECK( ExtensionEnableGSUB ); + if ( ExtensionEnableGSUB ) + otv_x_ux( table + ExtensionEnableGSUB, valid ); + + OTV_OPTIONAL_OFFSET( ExtensionDisableGSUB ); + OTV_SIZE_CHECK( ExtensionDisableGSUB ); + if ( ExtensionDisableGSUB ) + otv_x_ux( table + ExtensionDisableGSUB, valid ); + + valid->extra1 = gpos_lookup_count; + + OTV_OPTIONAL_OFFSET( ExtensionEnableGPOS ); + OTV_SIZE_CHECK( ExtensionEnableGPOS ); + if ( ExtensionEnableGPOS ) + otv_x_ux( table + ExtensionEnableGPOS, valid ); + + OTV_OPTIONAL_OFFSET( ExtensionDisableGPOS ); + OTV_SIZE_CHECK( ExtensionDisableGPOS ); + if ( ExtensionDisableGPOS ) + otv_x_ux( table + ExtensionDisableGPOS, valid ); + + OTV_OPTIONAL_OFFSET( ExtensionJstfMax ); + OTV_SIZE_CHECK( ExtensionJstfMax ); + if ( ExtensionJstfMax ) + { + /* XXX: check lookup types? */ + OTV_NEST2( JstfMax, JstfLookup ); + OTV_RUN( table + ExtensionJstfMax, valid ); + } + + valid->extra1 = gsub_lookup_count; + valid->extra2 = gpos_lookup_count; + + OTV_EXIT; + } + + + /* sets valid->extra (glyph count) */ + /* sets valid->func1 (otv_JstfPriority_validate) */ + + static void + otv_JstfScript_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt table_size; + FT_UInt JstfLangSysCount; + + OTV_OPTIONAL_TABLE( ExtGlyph ); + OTV_OPTIONAL_TABLE( DefJstfLangSys ); + + + OTV_NAME_ENTER( "JstfScript" ); + + OTV_LIMIT_CHECK( 6 ); + OTV_OPTIONAL_OFFSET( ExtGlyph ); + OTV_OPTIONAL_OFFSET( DefJstfLangSys ); + JstfLangSysCount = FT_NEXT_USHORT( p ); + + OTV_TRACE(( " (JstfLangSysCount = %d)\n", JstfLangSysCount )); + + table_size = JstfLangSysCount * 6 + 6; + + OTV_SIZE_CHECK( ExtGlyph ); + if ( ExtGlyph ) + { + valid->extra1 = valid->glyph_count; + OTV_NEST1( ExtenderGlyph ); + OTV_RUN( table + ExtGlyph, valid ); + } + + OTV_SIZE_CHECK( DefJstfLangSys ); + if ( DefJstfLangSys ) + { + OTV_NEST2( JstfLangSys, JstfPriority ); + OTV_RUN( table + DefJstfLangSys, valid ); + } + + OTV_LIMIT_CHECK( 6 * JstfLangSysCount ); + + /* JstfLangSysRecord */ + OTV_NEST2( JstfLangSys, JstfPriority ); + for ( ; JstfLangSysCount > 0; JstfLangSysCount-- ) + { + p += 4; /* skip JstfLangSysTag */ + + OTV_RUN( table + FT_NEXT_USHORT( p ), valid ); + } + + OTV_EXIT; + } + + + /* sets valid->extra1 (GSUB lookup count) */ + /* sets valid->extra2 (GPOS lookup count) */ + /* sets valid->glyph_count */ + + FT_LOCAL_DEF( void ) + otv_JSTF_validate( FT_Bytes table, + FT_Bytes gsub, + FT_Bytes gpos, + FT_UInt glyph_count, + FT_Validator ftvalid ) + { + OTV_ValidatorRec validrec; + OTV_Validator valid = &validrec; + FT_Bytes p = table; + FT_UInt JstfScriptCount; + + + valid->root = ftvalid; + + FT_TRACE3(( "validating JSTF table\n" )); + OTV_INIT; + + OTV_LIMIT_CHECK( 6 ); + + if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ + FT_INVALID_FORMAT; + + JstfScriptCount = FT_NEXT_USHORT( p ); + + FT_TRACE3(( " (JstfScriptCount = %d)\n", JstfScriptCount )); + + OTV_LIMIT_CHECK( JstfScriptCount * 6 ); + + if ( gsub ) + valid->extra1 = otv_GSUBGPOS_get_Lookup_count( gsub ); + else + valid->extra1 = 0; + + if ( gpos ) + valid->extra2 = otv_GSUBGPOS_get_Lookup_count( gpos ); + else + valid->extra2 = 0; + + valid->glyph_count = glyph_count; + + /* JstfScriptRecord */ + for ( ; JstfScriptCount > 0; JstfScriptCount-- ) + { + p += 4; /* skip JstfScriptTag */ + + /* JstfScript */ + otv_JstfScript_validate( table + FT_NEXT_USHORT( p ), valid ); + } + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/otvalid/otvmath.c b/src/otvalid/otvmath.c new file mode 100644 index 0000000..96f841f --- /dev/null +++ b/src/otvalid/otvmath.c @@ -0,0 +1,453 @@ +/***************************************************************************/ +/* */ +/* otvmath.c */ +/* */ +/* OpenType MATH table validation (body). */ +/* */ +/* Copyright 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* Written by George Williams. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "otvalid.h" +#include "otvcommn.h" +#include "otvgpos.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvmath + + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MATH TYPOGRAPHIC CONSTANTS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_MathConstants_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt i; + FT_UInt table_size; + + OTV_OPTIONAL_TABLE( DeviceTableOffset ); + + + OTV_NAME_ENTER( "MathConstants" ); + + /* 56 constants, 51 have device tables */ + OTV_LIMIT_CHECK( 2 * ( 56 + 51 ) ); + table_size = 2 * ( 56 + 51 ); + + p += 4 * 2; /* First 4 constants have no device tables */ + for ( i = 0; i < 51; ++i ) + { + p += 2; /* skip the value */ + OTV_OPTIONAL_OFFSET( DeviceTableOffset ); + OTV_SIZE_CHECK( DeviceTableOffset ); + if ( DeviceTableOffset ) + otv_Device_validate( table + DeviceTableOffset, valid ); + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MATH ITALICS CORRECTION *****/ + /***** MATH TOP ACCENT ATTACHMENT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_MathItalicsCorrectionInfo_validate( FT_Bytes table, + OTV_Validator valid, + FT_Int isItalic ) + { + FT_Bytes p = table; + FT_UInt i, cnt, table_size ; + + OTV_OPTIONAL_TABLE( Coverage ); + OTV_OPTIONAL_TABLE( DeviceTableOffset ); + + FT_UNUSED( isItalic ); /* only used if tracing is active */ + + + OTV_NAME_ENTER( isItalic ? "MathItalicsCorrectionInfo" + : "MathTopAccentAttachment" ); + + OTV_LIMIT_CHECK( 4 ); + + OTV_OPTIONAL_OFFSET( Coverage ); + cnt = FT_NEXT_USHORT( p ); + + OTV_LIMIT_CHECK( 4 * cnt ); + table_size = 4 + 4 * cnt; + + OTV_SIZE_CHECK( Coverage ); + otv_Coverage_validate( table + Coverage, valid, cnt ); + + for ( i = 0; i < cnt; ++i ) + { + p += 2; /* Skip the value */ + OTV_OPTIONAL_OFFSET( DeviceTableOffset ); + OTV_SIZE_CHECK( DeviceTableOffset ); + if ( DeviceTableOffset ) + otv_Device_validate( table + DeviceTableOffset, valid ); + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MATH KERNING *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_MathKern_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt i, cnt, table_size; + + OTV_OPTIONAL_TABLE( DeviceTableOffset ); + + + /* OTV_NAME_ENTER( "MathKern" );*/ + + OTV_LIMIT_CHECK( 2 ); + + cnt = FT_NEXT_USHORT( p ); + + OTV_LIMIT_CHECK( 4 * cnt + 2 ); + table_size = 4 + 4 * cnt; + + /* Heights */ + for ( i = 0; i < cnt; ++i ) + { + p += 2; /* Skip the value */ + OTV_OPTIONAL_OFFSET( DeviceTableOffset ); + OTV_SIZE_CHECK( DeviceTableOffset ); + if ( DeviceTableOffset ) + otv_Device_validate( table + DeviceTableOffset, valid ); + } + + /* One more Kerning value */ + for ( i = 0; i < cnt + 1; ++i ) + { + p += 2; /* Skip the value */ + OTV_OPTIONAL_OFFSET( DeviceTableOffset ); + OTV_SIZE_CHECK( DeviceTableOffset ); + if ( DeviceTableOffset ) + otv_Device_validate( table + DeviceTableOffset, valid ); + } + + OTV_EXIT; + } + + + static void + otv_MathKernInfo_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt i, j, cnt, table_size; + + OTV_OPTIONAL_TABLE( Coverage ); + OTV_OPTIONAL_TABLE( MKRecordOffset ); + + + OTV_NAME_ENTER( "MathKernInfo" ); + + OTV_LIMIT_CHECK( 4 ); + + OTV_OPTIONAL_OFFSET( Coverage ); + cnt = FT_NEXT_USHORT( p ); + + OTV_LIMIT_CHECK( 8 * cnt ); + table_size = 4 + 8 * cnt; + + OTV_SIZE_CHECK( Coverage ); + otv_Coverage_validate( table + Coverage, valid, cnt ); + + for ( i = 0; i < cnt; ++i ) + { + for ( j = 0; j < 4; ++j ) + { + OTV_OPTIONAL_OFFSET( MKRecordOffset ); + OTV_SIZE_CHECK( MKRecordOffset ); + if ( MKRecordOffset ) + otv_MathKern_validate( table + MKRecordOffset, valid ); + } + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MATH GLYPH INFO *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_MathGlyphInfo_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt MathItalicsCorrectionInfo, MathTopAccentAttachment; + FT_UInt ExtendedShapeCoverage, MathKernInfo; + + + OTV_NAME_ENTER( "MathGlyphInfo" ); + + OTV_LIMIT_CHECK( 8 ); + + MathItalicsCorrectionInfo = FT_NEXT_USHORT( p ); + MathTopAccentAttachment = FT_NEXT_USHORT( p ); + ExtendedShapeCoverage = FT_NEXT_USHORT( p ); + MathKernInfo = FT_NEXT_USHORT( p ); + + if ( MathItalicsCorrectionInfo ) + otv_MathItalicsCorrectionInfo_validate( + table + MathItalicsCorrectionInfo, valid, TRUE ); + + /* Italic correction and Top Accent Attachment have the same format */ + if ( MathTopAccentAttachment ) + otv_MathItalicsCorrectionInfo_validate( + table + MathTopAccentAttachment, valid, FALSE ); + + if ( ExtendedShapeCoverage ) + { + OTV_NAME_ENTER( "ExtendedShapeCoverage" ); + otv_Coverage_validate( table + ExtendedShapeCoverage, valid, -1 ); + OTV_EXIT; + } + + if ( MathKernInfo ) + otv_MathKernInfo_validate( table + MathKernInfo, valid ); + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MATH GLYPH CONSTRUCTION *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + otv_GlyphAssembly_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt pcnt, table_size; + FT_UInt i; + + OTV_OPTIONAL_TABLE( DeviceTableOffset ); + + + /* OTV_NAME_ENTER( "GlyphAssembly" ); */ + + OTV_LIMIT_CHECK( 6 ); + + p += 2; /* Skip the Italics Correction value */ + OTV_OPTIONAL_OFFSET( DeviceTableOffset ); + pcnt = FT_NEXT_USHORT( p ); + + OTV_LIMIT_CHECK( 8 * pcnt ); + table_size = 6 + 8 * pcnt; + + OTV_SIZE_CHECK( DeviceTableOffset ); + if ( DeviceTableOffset ) + otv_Device_validate( table + DeviceTableOffset, valid ); + + for ( i = 0; i < pcnt; ++i ) + { + FT_UInt gid; + + + gid = FT_NEXT_USHORT( p ); + if ( gid >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + p += 2*4; /* skip the Start, End, Full, and Flags fields */ + } + + /* OTV_EXIT; */ + } + + + static void + otv_MathGlyphConstruction_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt vcnt, table_size; + FT_UInt i; + + OTV_OPTIONAL_TABLE( GlyphAssembly ); + + + /* OTV_NAME_ENTER( "MathGlyphConstruction" ); */ + + OTV_LIMIT_CHECK( 4 ); + + OTV_OPTIONAL_OFFSET( GlyphAssembly ); + vcnt = FT_NEXT_USHORT( p ); + + OTV_LIMIT_CHECK( 4 * vcnt ); + table_size = 4 + 4 * vcnt; + + for ( i = 0; i < vcnt; ++i ) + { + FT_UInt gid; + + + gid = FT_NEXT_USHORT( p ); + if ( gid >= valid->glyph_count ) + FT_INVALID_GLYPH_ID; + p += 2; /* skip the size */ + } + + OTV_SIZE_CHECK( GlyphAssembly ); + if ( GlyphAssembly ) + otv_GlyphAssembly_validate( table+GlyphAssembly, valid ); + + /* OTV_EXIT; */ + } + + + static void + otv_MathVariants_validate( FT_Bytes table, + OTV_Validator valid ) + { + FT_Bytes p = table; + FT_UInt vcnt, hcnt, i, table_size; + + OTV_OPTIONAL_TABLE( VCoverage ); + OTV_OPTIONAL_TABLE( HCoverage ); + OTV_OPTIONAL_TABLE( Offset ); + + + OTV_NAME_ENTER( "MathVariants" ); + + OTV_LIMIT_CHECK( 10 ); + + p += 2; /* Skip the MinConnectorOverlap constant */ + OTV_OPTIONAL_OFFSET( VCoverage ); + OTV_OPTIONAL_OFFSET( HCoverage ); + vcnt = FT_NEXT_USHORT( p ); + hcnt = FT_NEXT_USHORT( p ); + + OTV_LIMIT_CHECK( 2 * vcnt + 2 * hcnt ); + table_size = 10 + 2 * vcnt + 2 * hcnt; + + OTV_SIZE_CHECK( VCoverage ); + if ( VCoverage ) + otv_Coverage_validate( table + VCoverage, valid, vcnt ); + + OTV_SIZE_CHECK( HCoverage ); + if ( HCoverage ) + otv_Coverage_validate( table + HCoverage, valid, hcnt ); + + for ( i = 0; i < vcnt; ++i ) + { + OTV_OPTIONAL_OFFSET( Offset ); + OTV_SIZE_CHECK( Offset ); + otv_MathGlyphConstruction_validate( table + Offset, valid ); + } + + for ( i = 0; i < hcnt; ++i ) + { + OTV_OPTIONAL_OFFSET( Offset ); + OTV_SIZE_CHECK( Offset ); + otv_MathGlyphConstruction_validate( table + Offset, valid ); + } + + OTV_EXIT; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MATH TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* sets valid->glyph_count */ + + FT_LOCAL_DEF( void ) + otv_MATH_validate( FT_Bytes table, + FT_UInt glyph_count, + FT_Validator ftvalid ) + { + OTV_ValidatorRec validrec; + OTV_Validator valid = &validrec; + FT_Bytes p = table; + FT_UInt MathConstants, MathGlyphInfo, MathVariants; + + + valid->root = ftvalid; + + FT_TRACE3(( "validating MATH table\n" )); + OTV_INIT; + + OTV_LIMIT_CHECK( 10 ); + + if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ + FT_INVALID_FORMAT; + + MathConstants = FT_NEXT_USHORT( p ); + MathGlyphInfo = FT_NEXT_USHORT( p ); + MathVariants = FT_NEXT_USHORT( p ); + + valid->glyph_count = glyph_count; + + otv_MathConstants_validate( table + MathConstants, + valid ); + otv_MathGlyphInfo_validate( table + MathGlyphInfo, + valid ); + otv_MathVariants_validate ( table + MathVariants, + valid ); + + FT_TRACE4(( "\n" )); + } + + +/* END */ diff --git a/src/otvalid/otvmod.c b/src/otvalid/otvmod.c new file mode 100644 index 0000000..acf213f --- /dev/null +++ b/src/otvalid/otvmod.c @@ -0,0 +1,282 @@ +/***************************************************************************/ +/* */ +/* otvmod.c */ +/* */ +/* FreeType's OpenType validation module implementation (body). */ +/* */ +/* Copyright 2004, 2005, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_TRUETYPE_TABLES_H +#include FT_TRUETYPE_TAGS_H +#include FT_OPENTYPE_VALIDATE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_OPENTYPE_VALIDATE_H + +#include "otvmod.h" +#include "otvalid.h" +#include "otvcommn.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_otvmodule + + + static FT_Error + otv_load_table( FT_Face face, + FT_Tag tag, + FT_Byte* volatile* table, + FT_ULong* table_len ) + { + FT_Error error; + FT_Memory memory = FT_FACE_MEMORY( face ); + + + error = FT_Load_Sfnt_Table( face, tag, 0, NULL, table_len ); + if ( error == OTV_Err_Table_Missing ) + return OTV_Err_Ok; + if ( error ) + goto Exit; + + if ( FT_ALLOC( *table, *table_len ) ) + goto Exit; + + error = FT_Load_Sfnt_Table( face, tag, 0, *table, table_len ); + + Exit: + return error; + } + + + static FT_Error + otv_validate( FT_Face volatile face, + FT_UInt ot_flags, + FT_Bytes *ot_base, + FT_Bytes *ot_gdef, + FT_Bytes *ot_gpos, + FT_Bytes *ot_gsub, + FT_Bytes *ot_jstf ) + { + FT_Error error = OTV_Err_Ok; + FT_Byte* volatile base; + FT_Byte* volatile gdef; + FT_Byte* volatile gpos; + FT_Byte* volatile gsub; + FT_Byte* volatile jstf; + FT_Byte* volatile math; + FT_ULong len_base, len_gdef, len_gpos, len_gsub, len_jstf; + FT_ULong len_math; + FT_UInt num_glyphs = (FT_UInt)face->num_glyphs; + FT_ValidatorRec volatile valid; + + + base = gdef = gpos = gsub = jstf = math = NULL; + len_base = len_gdef = len_gpos = len_gsub = len_jstf = len_math = 0; + + /* + * XXX: OpenType tables cannot handle 32-bit glyph index, + * although broken TrueType can have 32-bit glyph index. + */ + if ( face->num_glyphs > 0xFFFFL ) + { + FT_TRACE1(( "otv_validate: Invalid glyphs index (0x0000FFFF - 0x%08x) ", + face->num_glyphs )); + FT_TRACE1(( "are not handled by OpenType tables\n" )); + num_glyphs = 0xFFFF; + } + + /* load tables */ + + if ( ot_flags & FT_VALIDATE_BASE ) + { + error = otv_load_table( face, TTAG_BASE, &base, &len_base ); + if ( error ) + goto Exit; + } + + if ( ot_flags & FT_VALIDATE_GDEF ) + { + error = otv_load_table( face, TTAG_GDEF, &gdef, &len_gdef ); + if ( error ) + goto Exit; + } + + if ( ot_flags & FT_VALIDATE_GPOS ) + { + error = otv_load_table( face, TTAG_GPOS, &gpos, &len_gpos ); + if ( error ) + goto Exit; + } + + if ( ot_flags & FT_VALIDATE_GSUB ) + { + error = otv_load_table( face, TTAG_GSUB, &gsub, &len_gsub ); + if ( error ) + goto Exit; + } + + if ( ot_flags & FT_VALIDATE_JSTF ) + { + error = otv_load_table( face, TTAG_JSTF, &jstf, &len_jstf ); + if ( error ) + goto Exit; + } + + if ( ot_flags & FT_VALIDATE_MATH ) + { + error = otv_load_table( face, TTAG_MATH, &math, &len_math ); + if ( error ) + goto Exit; + } + + /* validate tables */ + + if ( base ) + { + ft_validator_init( &valid, base, base + len_base, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_BASE_validate( base, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + if ( gpos ) + { + ft_validator_init( &valid, gpos, gpos + len_gpos, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_GPOS_validate( gpos, num_glyphs, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + if ( gsub ) + { + ft_validator_init( &valid, gsub, gsub + len_gsub, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_GSUB_validate( gsub, num_glyphs, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + if ( gdef ) + { + ft_validator_init( &valid, gdef, gdef + len_gdef, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_GDEF_validate( gdef, gsub, gpos, num_glyphs, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + if ( jstf ) + { + ft_validator_init( &valid, jstf, jstf + len_jstf, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_JSTF_validate( jstf, gsub, gpos, num_glyphs, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + if ( math ) + { + ft_validator_init( &valid, math, math + len_math, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_MATH_validate( math, num_glyphs, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + *ot_base = (FT_Bytes)base; + *ot_gdef = (FT_Bytes)gdef; + *ot_gpos = (FT_Bytes)gpos; + *ot_gsub = (FT_Bytes)gsub; + *ot_jstf = (FT_Bytes)jstf; + + Exit: + if ( error ) + { + FT_Memory memory = FT_FACE_MEMORY( face ); + + + FT_FREE( base ); + FT_FREE( gdef ); + FT_FREE( gpos ); + FT_FREE( gsub ); + FT_FREE( jstf ); + } + + { + FT_Memory memory = FT_FACE_MEMORY( face ); + + + FT_FREE( math ); /* Can't return this as API is frozen */ + } + + return error; + } + + + static + const FT_Service_OTvalidateRec otvalid_interface = + { + otv_validate + }; + + + static + const FT_ServiceDescRec otvalid_services[] = + { + { FT_SERVICE_ID_OPENTYPE_VALIDATE, &otvalid_interface }, + { NULL, NULL } + }; + + + static FT_Pointer + otvalid_get_service( FT_Module module, + const char* service_id ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( otvalid_services, service_id ); + } + + + FT_CALLBACK_TABLE_DEF + const FT_Module_Class otv_module_class = + { + 0, + sizeof ( FT_ModuleRec ), + "otvalid", + 0x10000L, + 0x20000L, + + 0, /* module-specific interface */ + + (FT_Module_Constructor)0, + (FT_Module_Destructor) 0, + (FT_Module_Requester) otvalid_get_service + }; + + +/* END */ diff --git a/src/otvalid/otvmod.h b/src/otvalid/otvmod.h new file mode 100644 index 0000000..f7e1550 --- /dev/null +++ b/src/otvalid/otvmod.h @@ -0,0 +1,43 @@ +/***************************************************************************/ +/* */ +/* otvmod.h */ +/* */ +/* FreeType's OpenType validation module implementation */ +/* (specification). */ +/* */ +/* Copyright 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __OTVMOD_H__ +#define __OTVMOD_H__ + + +#include <ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_EXPORT_VAR( const FT_Module_Class ) otv_module_class; + + +FT_END_HEADER + +#endif /* __OTVMOD_H__ */ + + +/* END */ diff --git a/src/otvalid/rules.mk b/src/otvalid/rules.mk new file mode 100644 index 0000000..53bd41e --- /dev/null +++ b/src/otvalid/rules.mk @@ -0,0 +1,78 @@ +# +# FreeType 2 OpenType validation driver configuration rules +# + + +# Copyright 2004, 2007 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# OTV driver directory +# +OTV_DIR := $(SRC_DIR)/otvalid + + +# compilation flags for the driver +# +OTV_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(OTV_DIR)) + + +# OTV driver sources (i.e., C files) +# +OTV_DRV_SRC := $(OTV_DIR)/otvbase.c \ + $(OTV_DIR)/otvcommn.c \ + $(OTV_DIR)/otvgdef.c \ + $(OTV_DIR)/otvgpos.c \ + $(OTV_DIR)/otvgsub.c \ + $(OTV_DIR)/otvjstf.c \ + $(OTV_DIR)/otvmath.c \ + $(OTV_DIR)/otvmod.c + +# OTV driver headers +# +OTV_DRV_H := $(OTV_DIR)/otvalid.h \ + $(OTV_DIR)/otvcommn.h \ + $(OTV_DIR)/otverror.h \ + $(OTV_DIR)/otvgpos.h \ + $(OTV_DIR)/otvmod.h + + +# OTV driver object(s) +# +# OTV_DRV_OBJ_M is used during `multi' builds. +# OTV_DRV_OBJ_S is used during `single' builds. +# +OTV_DRV_OBJ_M := $(OTV_DRV_SRC:$(OTV_DIR)/%.c=$(OBJ_DIR)/%.$O) +OTV_DRV_OBJ_S := $(OBJ_DIR)/otvalid.$O + +# OTV driver source file for single build +# +OTV_DRV_SRC_S := $(OTV_DIR)/otvalid.c + + +# OTV driver - single object +# +$(OTV_DRV_OBJ_S): $(OTV_DRV_SRC_S) $(OTV_DRV_SRC) \ + $(FREETYPE_H) $(OTV_DRV_H) + $(OTV_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(OTV_DRV_SRC_S)) + + +# OTV driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(OTV_DIR)/%.c $(FREETYPE_H) $(OTV_DRV_H) + $(OTV_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(OTV_DRV_OBJ_S) +DRV_OBJS_M += $(OTV_DRV_OBJ_M) + + +# EOF diff --git a/src/pcf/Jamfile b/src/pcf/Jamfile new file mode 100644 index 0000000..752fcac --- /dev/null +++ b/src/pcf/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/pcf Jamfile +# +# Copyright 2001, 2003 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) pcf ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = pcfdrivr pcfread pcfutil ; + } + else + { + _sources = pcf ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/pcf Jamfile diff --git a/src/pcf/README b/src/pcf/README new file mode 100644 index 0000000..8858d68 --- /dev/null +++ b/src/pcf/README @@ -0,0 +1,96 @@ + FreeType font driver for PCF fonts + + Francesco Zappa Nardelli + <francesco.zappa.nardelli@ens.fr> + + +Introduction +************ + +PCF (Portable Compiled Format) is a binary bitmap font format, largely used +in X world. This code implements a PCF driver for the FreeType library. +Glyph images are loaded into memory only on demand, thus leading to a small +memory footprint. + +Information on the PCF font format can only be worked out from +`pcfread.c', and `pcfwrite.c', to be found, for instance, in the XFree86 +(www.xfree86.org) source tree (xc/lib/font/bitmap/). + +Many good bitmap fonts in bdf format come with XFree86: they can be +compiled into the pcf format using the `bdftopcf' utility. + + +Supported hardware +****************** + +The driver has been tested on linux/x86 and sunos5.5/sparc. In both +cases the compiler was gcc. When back in Paris, I will test it also +on linux/alpha. + + +Encodings +********* + +Use `FT_Get_BDF_Charset_ID' to access the encoding and registry. + +The driver always exports `ft_encoding_none' as face->charmap.encoding. +FT_Get_Char_Index() behavior is unmodified, that is, it converts the ULong +value given as argument into the corresponding glyph number. + + +Known problems +************** + +- dealing explicitly with encodings breaks the uniformity of freetype2 + api. + +- except for encodings properties, client applications have no + visibility of the PCF_Face object. This means that applications + cannot directly access font tables and are obliged to trust + FreeType. + +- currently, glyph names and ink_metrics are ignored. + +I plan to give full visibility of the PCF_Face object in the next +release of the driver, thus implementing also glyph names and +ink_metrics. + +- height is defined as (ascent - descent). Is this correct? + +- if unable to read size information from the font, PCF_Init_Face + sets available_size->width and available_size->height to 12. + +- too many english grammar errors in the readme file :-( + + +License +******* + +Copyright (C) 2000 by Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + + +Credits +******* + +Keith Packard wrote the pcf driver found in XFree86. His work is at +the same time the specification and the sample implementation of the +PCF format. Undoubtedly, this driver is inspired from his work. diff --git a/src/pcf/module.mk b/src/pcf/module.mk new file mode 100644 index 0000000..df383ff --- /dev/null +++ b/src/pcf/module.mk @@ -0,0 +1,34 @@ +# +# FreeType 2 PCF module definition +# + +# Copyright 2000, 2006 by +# Francesco Zappa Nardelli +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +# THE SOFTWARE. + + +FTMODULE_H_COMMANDS += PCF_DRIVER + +define PCF_DRIVER +$(OPEN_DRIVER) FT_Driver_ClassRec, pcf_driver_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)pcf $(ECHO_DRIVER_DESC)pcf bitmap fonts$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/pcf/pcf.c b/src/pcf/pcf.c new file mode 100644 index 0000000..11d5b7b --- /dev/null +++ b/src/pcf/pcf.c @@ -0,0 +1,36 @@ +/* pcf.c + + FreeType font driver for pcf fonts + + Copyright 2000-2001, 2003 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + + +#include <ft2build.h> +#include "pcfutil.c" +#include "pcfread.c" +#include "pcfdrivr.c" + +/* END */ diff --git a/src/pcf/pcf.h b/src/pcf/pcf.h new file mode 100644 index 0000000..af0ffc3 --- /dev/null +++ b/src/pcf/pcf.h @@ -0,0 +1,237 @@ +/* pcf.h + + FreeType font driver for pcf fonts + + Copyright (C) 2000, 2001, 2002, 2003, 2006, 2010 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#ifndef __PCF_H__ +#define __PCF_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_DRIVER_H +#include FT_INTERNAL_STREAM_H + + +FT_BEGIN_HEADER + + typedef struct PCF_TableRec_ + { + FT_ULong type; + FT_ULong format; + FT_ULong size; + FT_ULong offset; + + } PCF_TableRec, *PCF_Table; + + + typedef struct PCF_TocRec_ + { + FT_ULong version; + FT_ULong count; + PCF_Table tables; + + } PCF_TocRec, *PCF_Toc; + + + typedef struct PCF_ParsePropertyRec_ + { + FT_Long name; + FT_Byte isString; + FT_Long value; + + } PCF_ParsePropertyRec, *PCF_ParseProperty; + + + typedef struct PCF_PropertyRec_ + { + FT_String* name; + FT_Byte isString; + + union + { + FT_String* atom; + FT_Long l; + FT_ULong ul; + + } value; + + } PCF_PropertyRec, *PCF_Property; + + + typedef struct PCF_Compressed_MetricRec_ + { + FT_Byte leftSideBearing; + FT_Byte rightSideBearing; + FT_Byte characterWidth; + FT_Byte ascent; + FT_Byte descent; + + } PCF_Compressed_MetricRec, *PCF_Compressed_Metric; + + + typedef struct PCF_MetricRec_ + { + FT_Short leftSideBearing; + FT_Short rightSideBearing; + FT_Short characterWidth; + FT_Short ascent; + FT_Short descent; + FT_Short attributes; + FT_ULong bits; + + } PCF_MetricRec, *PCF_Metric; + + + typedef struct PCF_AccelRec_ + { + FT_Byte noOverlap; + FT_Byte constantMetrics; + FT_Byte terminalFont; + FT_Byte constantWidth; + FT_Byte inkInside; + FT_Byte inkMetrics; + FT_Byte drawDirection; + FT_Long fontAscent; + FT_Long fontDescent; + FT_Long maxOverlap; + PCF_MetricRec minbounds; + PCF_MetricRec maxbounds; + PCF_MetricRec ink_minbounds; + PCF_MetricRec ink_maxbounds; + + } PCF_AccelRec, *PCF_Accel; + + + typedef struct PCF_EncodingRec_ + { + FT_Long enc; + FT_UShort glyph; + + } PCF_EncodingRec, *PCF_Encoding; + + + typedef struct PCF_FaceRec_ + { + FT_FaceRec root; + + FT_StreamRec comp_stream; + FT_Stream comp_source; + + char* charset_encoding; + char* charset_registry; + + PCF_TocRec toc; + PCF_AccelRec accel; + + int nprops; + PCF_Property properties; + + FT_Long nmetrics; + PCF_Metric metrics; + FT_Long nencodings; + PCF_Encoding encodings; + + FT_Short defaultChar; + + FT_ULong bitmapsFormat; + + FT_CharMap charmap_handle; + FT_CharMapRec charmap; /* a single charmap per face */ + + } PCF_FaceRec, *PCF_Face; + + + /* macros for pcf font format */ + +#define LSBFirst 0 +#define MSBFirst 1 + +#define PCF_FILE_VERSION ( ( 'p' << 24 ) | \ + ( 'c' << 16 ) | \ + ( 'f' << 8 ) | 1 ) +#define PCF_FORMAT_MASK 0xFFFFFF00UL + +#define PCF_DEFAULT_FORMAT 0x00000000UL +#define PCF_INKBOUNDS 0x00000200UL +#define PCF_ACCEL_W_INKBOUNDS 0x00000100UL +#define PCF_COMPRESSED_METRICS 0x00000100UL + +#define PCF_FORMAT_MATCH( a, b ) \ + ( ( (a) & PCF_FORMAT_MASK ) == ( (b) & PCF_FORMAT_MASK ) ) + +#define PCF_GLYPH_PAD_MASK ( 3 << 0 ) +#define PCF_BYTE_MASK ( 1 << 2 ) +#define PCF_BIT_MASK ( 1 << 3 ) +#define PCF_SCAN_UNIT_MASK ( 3 << 4 ) + +#define PCF_BYTE_ORDER( f ) \ + ( ( (f) & PCF_BYTE_MASK ) ? MSBFirst : LSBFirst ) +#define PCF_BIT_ORDER( f ) \ + ( ( (f) & PCF_BIT_MASK ) ? MSBFirst : LSBFirst ) +#define PCF_GLYPH_PAD_INDEX( f ) \ + ( (f) & PCF_GLYPH_PAD_MASK ) +#define PCF_GLYPH_PAD( f ) \ + ( 1 << PCF_GLYPH_PAD_INDEX( f ) ) +#define PCF_SCAN_UNIT_INDEX( f ) \ + ( ( (f) & PCF_SCAN_UNIT_MASK ) >> 4 ) +#define PCF_SCAN_UNIT( f ) \ + ( 1 << PCF_SCAN_UNIT_INDEX( f ) ) +#define PCF_FORMAT_BITS( f ) \ + ( (f) & ( PCF_GLYPH_PAD_MASK | \ + PCF_BYTE_MASK | \ + PCF_BIT_MASK | \ + PCF_SCAN_UNIT_MASK ) ) + +#define PCF_SIZE_TO_INDEX( s ) ( (s) == 4 ? 2 : (s) == 2 ? 1 : 0 ) +#define PCF_INDEX_TO_SIZE( b ) ( 1 << b ) + +#define PCF_FORMAT( bit, byte, glyph, scan ) \ + ( ( PCF_SIZE_TO_INDEX( scan ) << 4 ) | \ + ( ( (bit) == MSBFirst ? 1 : 0 ) << 3 ) | \ + ( ( (byte) == MSBFirst ? 1 : 0 ) << 2 ) | \ + ( PCF_SIZE_TO_INDEX( glyph ) << 0 ) ) + +#define PCF_PROPERTIES ( 1 << 0 ) +#define PCF_ACCELERATORS ( 1 << 1 ) +#define PCF_METRICS ( 1 << 2 ) +#define PCF_BITMAPS ( 1 << 3 ) +#define PCF_INK_METRICS ( 1 << 4 ) +#define PCF_BDF_ENCODINGS ( 1 << 5 ) +#define PCF_SWIDTHS ( 1 << 6 ) +#define PCF_GLYPH_NAMES ( 1 << 7 ) +#define PCF_BDF_ACCELERATORS ( 1 << 8 ) + +#define GLYPHPADOPTIONS 4 /* I'm not sure about this */ + + FT_LOCAL( FT_Error ) + pcf_load_font( FT_Stream, + PCF_Face ); + +FT_END_HEADER + +#endif /* __PCF_H__ */ + + +/* END */ diff --git a/src/pcf/pcfdrivr.c b/src/pcf/pcfdrivr.c new file mode 100644 index 0000000..ba54488 --- /dev/null +++ b/src/pcf/pcfdrivr.c @@ -0,0 +1,717 @@ +/* pcfdrivr.c + + FreeType font driver for pcf files + + Copyright (C) 2000-2004, 2006-2011 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#include <ft2build.h> + +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_OBJECTS_H +#include FT_GZIP_H +#include FT_LZW_H +#include FT_BZIP2_H +#include FT_ERRORS_H +#include FT_BDF_H +#include FT_TRUETYPE_IDS_H + +#include "pcf.h" +#include "pcfdrivr.h" +#include "pcfread.h" + +#include "pcferror.h" +#include "pcfutil.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pcfread + +#include FT_SERVICE_BDF_H +#include FT_SERVICE_XFREE86_NAME_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_pcfdriver + + + typedef struct PCF_CMapRec_ + { + FT_CMapRec root; + FT_UInt num_encodings; + PCF_Encoding encodings; + + } PCF_CMapRec, *PCF_CMap; + + + FT_CALLBACK_DEF( FT_Error ) + pcf_cmap_init( FT_CMap pcfcmap, /* PCF_CMap */ + FT_Pointer init_data ) + { + PCF_CMap cmap = (PCF_CMap)pcfcmap; + PCF_Face face = (PCF_Face)FT_CMAP_FACE( pcfcmap ); + + FT_UNUSED( init_data ); + + + cmap->num_encodings = (FT_UInt)face->nencodings; + cmap->encodings = face->encodings; + + return PCF_Err_Ok; + } + + + FT_CALLBACK_DEF( void ) + pcf_cmap_done( FT_CMap pcfcmap ) /* PCF_CMap */ + { + PCF_CMap cmap = (PCF_CMap)pcfcmap; + + + cmap->encodings = NULL; + cmap->num_encodings = 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + pcf_cmap_char_index( FT_CMap pcfcmap, /* PCF_CMap */ + FT_UInt32 charcode ) + { + PCF_CMap cmap = (PCF_CMap)pcfcmap; + PCF_Encoding encodings = cmap->encodings; + FT_UInt min, max, mid; + FT_UInt result = 0; + + + min = 0; + max = cmap->num_encodings; + + while ( min < max ) + { + FT_ULong code; + + + mid = ( min + max ) >> 1; + code = encodings[mid].enc; + + if ( charcode == code ) + { + result = encodings[mid].glyph + 1; + break; + } + + if ( charcode < code ) + max = mid; + else + min = mid + 1; + } + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt ) + pcf_cmap_char_next( FT_CMap pcfcmap, /* PCF_CMap */ + FT_UInt32 *acharcode ) + { + PCF_CMap cmap = (PCF_CMap)pcfcmap; + PCF_Encoding encodings = cmap->encodings; + FT_UInt min, max, mid; + FT_ULong charcode = *acharcode + 1; + FT_UInt result = 0; + + + min = 0; + max = cmap->num_encodings; + + while ( min < max ) + { + FT_ULong code; + + + mid = ( min + max ) >> 1; + code = encodings[mid].enc; + + if ( charcode == code ) + { + result = encodings[mid].glyph + 1; + goto Exit; + } + + if ( charcode < code ) + max = mid; + else + min = mid + 1; + } + + charcode = 0; + if ( min < cmap->num_encodings ) + { + charcode = encodings[min].enc; + result = encodings[min].glyph + 1; + } + + Exit: + if ( charcode > 0xFFFFFFFFUL ) + { + FT_TRACE1(( "pcf_cmap_char_next: charcode 0x%x > 32bit API" )); + *acharcode = 0; + /* XXX: result should be changed to indicate an overflow error */ + } + else + *acharcode = (FT_UInt32)charcode; + return result; + } + + + FT_CALLBACK_TABLE_DEF + const FT_CMap_ClassRec pcf_cmap_class = + { + sizeof ( PCF_CMapRec ), + pcf_cmap_init, + pcf_cmap_done, + pcf_cmap_char_index, + pcf_cmap_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + + FT_CALLBACK_DEF( void ) + PCF_Face_Done( FT_Face pcfface ) /* PCF_Face */ + { + PCF_Face face = (PCF_Face)pcfface; + FT_Memory memory; + + + if ( !face ) + return; + + memory = FT_FACE_MEMORY( face ); + + FT_FREE( face->encodings ); + FT_FREE( face->metrics ); + + /* free properties */ + { + PCF_Property prop; + FT_Int i; + + + if ( face->properties ) + { + for ( i = 0; i < face->nprops; i++ ) + { + prop = &face->properties[i]; + + if ( prop ) + { + FT_FREE( prop->name ); + if ( prop->isString ) + FT_FREE( prop->value.atom ); + } + } + } + FT_FREE( face->properties ); + } + + FT_FREE( face->toc.tables ); + FT_FREE( pcfface->family_name ); + FT_FREE( pcfface->style_name ); + FT_FREE( pcfface->available_sizes ); + FT_FREE( face->charset_encoding ); + FT_FREE( face->charset_registry ); + + /* close compressed stream if any */ + if ( pcfface->stream == &face->comp_stream ) + { + FT_Stream_Close( &face->comp_stream ); + pcfface->stream = face->comp_source; + } + } + + + FT_CALLBACK_DEF( FT_Error ) + PCF_Face_Init( FT_Stream stream, + FT_Face pcfface, /* PCF_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + PCF_Face face = (PCF_Face)pcfface; + FT_Error error = PCF_Err_Ok; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + FT_UNUSED( face_index ); + + + FT_TRACE2(( "PCF driver\n" )); + + error = pcf_load_font( stream, face ); + if ( error ) + { + PCF_Face_Done( pcfface ); + +#if defined( FT_CONFIG_OPTION_USE_ZLIB ) || \ + defined( FT_CONFIG_OPTION_USE_LZW ) || \ + defined( FT_CONFIG_OPTION_USE_BZIP2 ) + +#ifdef FT_CONFIG_OPTION_USE_ZLIB + { + FT_Error error2; + + + /* this didn't work, try gzip support! */ + error2 = FT_Stream_OpenGzip( &face->comp_stream, stream ); + if ( FT_ERROR_BASE( error2 ) == FT_Err_Unimplemented_Feature ) + goto Fail; + + error = error2; + } +#endif /* FT_CONFIG_OPTION_USE_ZLIB */ + +#ifdef FT_CONFIG_OPTION_USE_LZW + if ( error ) + { + FT_Error error3; + + + /* this didn't work, try LZW support! */ + error3 = FT_Stream_OpenLZW( &face->comp_stream, stream ); + if ( FT_ERROR_BASE( error3 ) == FT_Err_Unimplemented_Feature ) + goto Fail; + + error = error3; + } +#endif /* FT_CONFIG_OPTION_USE_LZW */ + +#ifdef FT_CONFIG_OPTION_USE_BZIP2 + if ( error ) + { + FT_Error error4; + + + /* this didn't work, try Bzip2 support! */ + error4 = FT_Stream_OpenBzip2( &face->comp_stream, stream ); + if ( FT_ERROR_BASE( error4 ) == FT_Err_Unimplemented_Feature ) + goto Fail; + + error = error4; + } +#endif /* FT_CONFIG_OPTION_USE_BZIP2 */ + + if ( error ) + goto Fail; + + face->comp_source = stream; + pcfface->stream = &face->comp_stream; + + stream = pcfface->stream; + + error = pcf_load_font( stream, face ); + if ( error ) + goto Fail; + +#else /* !(FT_CONFIG_OPTION_USE_ZLIB || + FT_CONFIG_OPTION_USE_LZW || + FT_CONFIG_OPTION_USE_BZIP2) */ + + goto Fail; + +#endif + } + + /* set up charmap */ + { + FT_String *charset_registry = face->charset_registry; + FT_String *charset_encoding = face->charset_encoding; + FT_Bool unicode_charmap = 0; + + + if ( charset_registry && charset_encoding ) + { + char* s = charset_registry; + + + /* Uh, oh, compare first letters manually to avoid dependency + on locales. */ + if ( ( s[0] == 'i' || s[0] == 'I' ) && + ( s[1] == 's' || s[1] == 'S' ) && + ( s[2] == 'o' || s[2] == 'O' ) ) + { + s += 3; + if ( !ft_strcmp( s, "10646" ) || + ( !ft_strcmp( s, "8859" ) && + !ft_strcmp( face->charset_encoding, "1" ) ) ) + unicode_charmap = 1; + } + } + + { + FT_CharMapRec charmap; + + + charmap.face = FT_FACE( face ); + charmap.encoding = FT_ENCODING_NONE; + /* initial platform/encoding should indicate unset status? */ + charmap.platform_id = TT_PLATFORM_APPLE_UNICODE; + charmap.encoding_id = TT_APPLE_ID_DEFAULT; + + if ( unicode_charmap ) + { + charmap.encoding = FT_ENCODING_UNICODE; + charmap.platform_id = TT_PLATFORM_MICROSOFT; + charmap.encoding_id = TT_MS_ID_UNICODE_CS; + } + + error = FT_CMap_New( &pcf_cmap_class, NULL, &charmap, NULL ); + +#if 0 + /* Select default charmap */ + if ( pcfface->num_charmaps ) + pcfface->charmap = pcfface->charmaps[0]; +#endif + } + } + + Exit: + return error; + + Fail: + FT_TRACE2(( " not a PCF file\n" )); + PCF_Face_Done( pcfface ); + error = PCF_Err_Unknown_File_Format; /* error */ + goto Exit; + } + + + FT_CALLBACK_DEF( FT_Error ) + PCF_Size_Select( FT_Size size, + FT_ULong strike_index ) + { + PCF_Accel accel = &( (PCF_Face)size->face )->accel; + + + FT_Select_Metrics( size->face, strike_index ); + + size->metrics.ascender = accel->fontAscent << 6; + size->metrics.descender = -accel->fontDescent << 6; + size->metrics.max_advance = accel->maxbounds.characterWidth << 6; + + return PCF_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + PCF_Size_Request( FT_Size size, + FT_Size_Request req ) + { + PCF_Face face = (PCF_Face)size->face; + FT_Bitmap_Size* bsize = size->face->available_sizes; + FT_Error error = PCF_Err_Invalid_Pixel_Size; + FT_Long height; + + + height = FT_REQUEST_HEIGHT( req ); + height = ( height + 32 ) >> 6; + + switch ( req->type ) + { + case FT_SIZE_REQUEST_TYPE_NOMINAL: + if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) ) + error = PCF_Err_Ok; + break; + + case FT_SIZE_REQUEST_TYPE_REAL_DIM: + if ( height == ( face->accel.fontAscent + + face->accel.fontDescent ) ) + error = PCF_Err_Ok; + break; + + default: + error = PCF_Err_Unimplemented_Feature; + break; + } + + if ( error ) + return error; + else + return PCF_Size_Select( size, 0 ); + } + + + FT_CALLBACK_DEF( FT_Error ) + PCF_Glyph_Load( FT_GlyphSlot slot, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + PCF_Face face = (PCF_Face)FT_SIZE_FACE( size ); + FT_Stream stream; + FT_Error error = PCF_Err_Ok; + FT_Bitmap* bitmap = &slot->bitmap; + PCF_Metric metric; + FT_Offset bytes; + + FT_UNUSED( load_flags ); + + + FT_TRACE4(( "load_glyph %d ---", glyph_index )); + + if ( !face || glyph_index >= (FT_UInt)face->root.num_glyphs ) + { + error = PCF_Err_Invalid_Argument; + goto Exit; + } + + stream = face->root.stream; + + if ( glyph_index > 0 ) + glyph_index--; + + metric = face->metrics + glyph_index; + + bitmap->rows = metric->ascent + metric->descent; + bitmap->width = metric->rightSideBearing - metric->leftSideBearing; + bitmap->num_grays = 1; + bitmap->pixel_mode = FT_PIXEL_MODE_MONO; + + FT_TRACE6(( "BIT_ORDER %d ; BYTE_ORDER %d ; GLYPH_PAD %d\n", + PCF_BIT_ORDER( face->bitmapsFormat ), + PCF_BYTE_ORDER( face->bitmapsFormat ), + PCF_GLYPH_PAD( face->bitmapsFormat ) )); + + switch ( PCF_GLYPH_PAD( face->bitmapsFormat ) ) + { + case 1: + bitmap->pitch = ( bitmap->width + 7 ) >> 3; + break; + + case 2: + bitmap->pitch = ( ( bitmap->width + 15 ) >> 4 ) << 1; + break; + + case 4: + bitmap->pitch = ( ( bitmap->width + 31 ) >> 5 ) << 2; + break; + + case 8: + bitmap->pitch = ( ( bitmap->width + 63 ) >> 6 ) << 3; + break; + + default: + return PCF_Err_Invalid_File_Format; + } + + /* XXX: to do: are there cases that need repadding the bitmap? */ + bytes = bitmap->pitch * bitmap->rows; + + error = ft_glyphslot_alloc_bitmap( slot, bytes ); + if ( error ) + goto Exit; + + if ( FT_STREAM_SEEK( metric->bits ) || + FT_STREAM_READ( bitmap->buffer, bytes ) ) + goto Exit; + + if ( PCF_BIT_ORDER( face->bitmapsFormat ) != MSBFirst ) + BitOrderInvert( bitmap->buffer, bytes ); + + if ( ( PCF_BYTE_ORDER( face->bitmapsFormat ) != + PCF_BIT_ORDER( face->bitmapsFormat ) ) ) + { + switch ( PCF_SCAN_UNIT( face->bitmapsFormat ) ) + { + case 1: + break; + + case 2: + TwoByteSwap( bitmap->buffer, bytes ); + break; + + case 4: + FourByteSwap( bitmap->buffer, bytes ); + break; + } + } + + slot->format = FT_GLYPH_FORMAT_BITMAP; + slot->bitmap_left = metric->leftSideBearing; + slot->bitmap_top = metric->ascent; + + slot->metrics.horiAdvance = metric->characterWidth << 6; + slot->metrics.horiBearingX = metric->leftSideBearing << 6; + slot->metrics.horiBearingY = metric->ascent << 6; + slot->metrics.width = ( metric->rightSideBearing - + metric->leftSideBearing ) << 6; + slot->metrics.height = bitmap->rows << 6; + + ft_synthesize_vertical_metrics( &slot->metrics, + ( face->accel.fontAscent + + face->accel.fontDescent ) << 6 ); + + FT_TRACE4(( " --- ok\n" )); + + Exit: + return error; + } + + + /* + * + * BDF SERVICE + * + */ + + static FT_Error + pcf_get_bdf_property( PCF_Face face, + const char* prop_name, + BDF_PropertyRec *aproperty ) + { + PCF_Property prop; + + + prop = pcf_find_property( face, prop_name ); + if ( prop != NULL ) + { + if ( prop->isString ) + { + aproperty->type = BDF_PROPERTY_TYPE_ATOM; + aproperty->u.atom = prop->value.atom; + } + else + { + if ( prop->value.l > 0x7FFFFFFFL || prop->value.l < ( -1 - 0x7FFFFFFFL ) ) + { + FT_TRACE1(( "pcf_get_bdf_property: " )); + FT_TRACE1(( "too large integer 0x%x is truncated\n" )); + } + /* Apparently, the PCF driver loads all properties as signed integers! + * This really doesn't seem to be a problem, because this is + * sufficient for any meaningful values. + */ + aproperty->type = BDF_PROPERTY_TYPE_INTEGER; + aproperty->u.integer = (FT_Int32)prop->value.l; + } + return 0; + } + + return PCF_Err_Invalid_Argument; + } + + + static FT_Error + pcf_get_charset_id( PCF_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ) + { + *acharset_encoding = face->charset_encoding; + *acharset_registry = face->charset_registry; + + return 0; + } + + + static const FT_Service_BDFRec pcf_service_bdf = + { + (FT_BDF_GetCharsetIdFunc)pcf_get_charset_id, + (FT_BDF_GetPropertyFunc) pcf_get_bdf_property + }; + + + /* + * + * SERVICE LIST + * + */ + + static const FT_ServiceDescRec pcf_services[] = + { + { FT_SERVICE_ID_BDF, &pcf_service_bdf }, + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_PCF }, + { NULL, NULL } + }; + + + FT_CALLBACK_DEF( FT_Module_Interface ) + pcf_driver_requester( FT_Module module, + const char* name ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( pcf_services, name ); + } + + + FT_CALLBACK_TABLE_DEF + const FT_Driver_ClassRec pcf_driver_class = + { + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_NO_OUTLINES, + sizeof ( FT_DriverRec ), + + "pcf", + 0x10000L, + 0x20000L, + + 0, + + 0, /* FT_Module_Constructor */ + 0, /* FT_Module_Destructor */ + pcf_driver_requester + }, + + sizeof ( PCF_FaceRec ), + sizeof ( FT_SizeRec ), + sizeof ( FT_GlyphSlotRec ), + + PCF_Face_Init, + PCF_Face_Done, + 0, /* FT_Size_InitFunc */ + 0, /* FT_Size_DoneFunc */ + 0, /* FT_Slot_InitFunc */ + 0, /* FT_Slot_DoneFunc */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + PCF_Glyph_Load, + + 0, /* FT_Face_GetKerningFunc */ + 0, /* FT_Face_AttachFunc */ + 0, /* FT_Face_GetAdvancesFunc */ + + PCF_Size_Request, + PCF_Size_Select + }; + + +/* END */ diff --git a/src/pcf/pcfdrivr.h b/src/pcf/pcfdrivr.h new file mode 100644 index 0000000..5461495 --- /dev/null +++ b/src/pcf/pcfdrivr.h @@ -0,0 +1,48 @@ +/* pcfdrivr.h + + FreeType font driver for pcf fonts + + Copyright 2000-2001, 2002 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#ifndef __PCFDRIVR_H__ +#define __PCFDRIVR_H__ + +#include <ft2build.h> +#include FT_INTERNAL_DRIVER_H + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + FT_EXPORT_VAR( const FT_Driver_ClassRec ) pcf_driver_class; + +FT_END_HEADER + + +#endif /* __PCFDRIVR_H__ */ + + +/* END */ diff --git a/src/pcf/pcferror.h b/src/pcf/pcferror.h new file mode 100644 index 0000000..e51fff8 --- /dev/null +++ b/src/pcf/pcferror.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* pcferror.h */ +/* */ +/* PCF error codes (specification only). */ +/* */ +/* Copyright 2001, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the PCF error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __PCFERROR_H__ +#define __PCFERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX PCF_Err_ +#define FT_ERR_BASE FT_Mod_Err_PCF + +#include FT_ERRORS_H + +#endif /* __PCFERROR_H__ */ + + +/* END */ diff --git a/src/pcf/pcfread.c b/src/pcf/pcfread.c new file mode 100644 index 0000000..d9914c0 --- /dev/null +++ b/src/pcf/pcfread.c @@ -0,0 +1,1278 @@ +/* pcfread.c + + FreeType font driver for pcf fonts + + Copyright 2000-2010, 2012 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#include <ft2build.h> + +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_OBJECTS_H + +#include "pcf.h" +#include "pcfread.h" + +#include "pcferror.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_pcfread + + +#ifdef FT_DEBUG_LEVEL_TRACE + static const char* const tableNames[] = + { + "prop", "accl", "mtrcs", "bmps", "imtrcs", + "enc", "swidth", "names", "accel" + }; +#endif + + + static + const FT_Frame_Field pcf_toc_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_TocRec + + FT_FRAME_START( 8 ), + FT_FRAME_ULONG_LE( version ), + FT_FRAME_ULONG_LE( count ), + FT_FRAME_END + }; + + + static + const FT_Frame_Field pcf_table_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_TableRec + + FT_FRAME_START( 16 ), + FT_FRAME_ULONG_LE( type ), + FT_FRAME_ULONG_LE( format ), + FT_FRAME_ULONG_LE( size ), + FT_FRAME_ULONG_LE( offset ), + FT_FRAME_END + }; + + + static FT_Error + pcf_read_TOC( FT_Stream stream, + PCF_Face face ) + { + FT_Error error; + PCF_Toc toc = &face->toc; + PCF_Table tables; + + FT_Memory memory = FT_FACE(face)->memory; + FT_UInt n; + + + if ( FT_STREAM_SEEK ( 0 ) || + FT_STREAM_READ_FIELDS ( pcf_toc_header, toc ) ) + return PCF_Err_Cannot_Open_Resource; + + if ( toc->version != PCF_FILE_VERSION || + toc->count > FT_ARRAY_MAX( face->toc.tables ) || + toc->count == 0 ) + return PCF_Err_Invalid_File_Format; + + if ( FT_NEW_ARRAY( face->toc.tables, toc->count ) ) + return PCF_Err_Out_Of_Memory; + + tables = face->toc.tables; + for ( n = 0; n < toc->count; n++ ) + { + if ( FT_STREAM_READ_FIELDS( pcf_table_header, tables ) ) + goto Exit; + tables++; + } + + /* Sort tables and check for overlaps. Because they are almost */ + /* always ordered already, an in-place bubble sort with simultaneous */ + /* boundary checking seems appropriate. */ + tables = face->toc.tables; + + for ( n = 0; n < toc->count - 1; n++ ) + { + FT_UInt i, have_change; + + + have_change = 0; + + for ( i = 0; i < toc->count - 1 - n; i++ ) + { + PCF_TableRec tmp; + + + if ( tables[i].offset > tables[i + 1].offset ) + { + tmp = tables[i]; + tables[i] = tables[i + 1]; + tables[i + 1] = tmp; + + have_change = 1; + } + + if ( ( tables[i].size > tables[i + 1].offset ) || + ( tables[i].offset > tables[i + 1].offset - tables[i].size ) ) + return PCF_Err_Invalid_Offset; + } + + if ( !have_change ) + break; + } + +#ifdef FT_DEBUG_LEVEL_TRACE + + { + FT_UInt i, j; + const char* name = "?"; + + + FT_TRACE4(( "pcf_read_TOC:\n" )); + + FT_TRACE4(( " number of tables: %ld\n", face->toc.count )); + + tables = face->toc.tables; + for ( i = 0; i < toc->count; i++ ) + { + for ( j = 0; j < sizeof ( tableNames ) / sizeof ( tableNames[0] ); + j++ ) + if ( tables[i].type == (FT_UInt)( 1 << j ) ) + name = tableNames[j]; + + FT_TRACE4(( " %d: type=%s, format=0x%X, " + "size=%ld (0x%lX), offset=%ld (0x%lX)\n", + i, name, + tables[i].format, + tables[i].size, tables[i].size, + tables[i].offset, tables[i].offset )); + } + } + +#endif + + return PCF_Err_Ok; + + Exit: + FT_FREE( face->toc.tables ); + return error; + } + + +#define PCF_METRIC_SIZE 12 + + static + const FT_Frame_Field pcf_metric_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_MetricRec + + FT_FRAME_START( PCF_METRIC_SIZE ), + FT_FRAME_SHORT_LE( leftSideBearing ), + FT_FRAME_SHORT_LE( rightSideBearing ), + FT_FRAME_SHORT_LE( characterWidth ), + FT_FRAME_SHORT_LE( ascent ), + FT_FRAME_SHORT_LE( descent ), + FT_FRAME_SHORT_LE( attributes ), + FT_FRAME_END + }; + + + static + const FT_Frame_Field pcf_metric_msb_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_MetricRec + + FT_FRAME_START( PCF_METRIC_SIZE ), + FT_FRAME_SHORT( leftSideBearing ), + FT_FRAME_SHORT( rightSideBearing ), + FT_FRAME_SHORT( characterWidth ), + FT_FRAME_SHORT( ascent ), + FT_FRAME_SHORT( descent ), + FT_FRAME_SHORT( attributes ), + FT_FRAME_END + }; + + +#define PCF_COMPRESSED_METRIC_SIZE 5 + + static + const FT_Frame_Field pcf_compressed_metric_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_Compressed_MetricRec + + FT_FRAME_START( PCF_COMPRESSED_METRIC_SIZE ), + FT_FRAME_BYTE( leftSideBearing ), + FT_FRAME_BYTE( rightSideBearing ), + FT_FRAME_BYTE( characterWidth ), + FT_FRAME_BYTE( ascent ), + FT_FRAME_BYTE( descent ), + FT_FRAME_END + }; + + + static FT_Error + pcf_get_metric( FT_Stream stream, + FT_ULong format, + PCF_Metric metric ) + { + FT_Error error = PCF_Err_Ok; + + + if ( PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) ) + { + const FT_Frame_Field* fields; + + + /* parsing normal metrics */ + fields = PCF_BYTE_ORDER( format ) == MSBFirst + ? pcf_metric_msb_header + : pcf_metric_header; + + /* the following sets `error' but doesn't return in case of failure */ + (void)FT_STREAM_READ_FIELDS( fields, metric ); + } + else + { + PCF_Compressed_MetricRec compr; + + + /* parsing compressed metrics */ + if ( FT_STREAM_READ_FIELDS( pcf_compressed_metric_header, &compr ) ) + goto Exit; + + metric->leftSideBearing = (FT_Short)( compr.leftSideBearing - 0x80 ); + metric->rightSideBearing = (FT_Short)( compr.rightSideBearing - 0x80 ); + metric->characterWidth = (FT_Short)( compr.characterWidth - 0x80 ); + metric->ascent = (FT_Short)( compr.ascent - 0x80 ); + metric->descent = (FT_Short)( compr.descent - 0x80 ); + metric->attributes = 0; + } + + Exit: + return error; + } + + + static FT_Error + pcf_seek_to_table_type( FT_Stream stream, + PCF_Table tables, + FT_ULong ntables, /* same as PCF_Toc->count */ + FT_ULong type, + FT_ULong *aformat, + FT_ULong *asize ) + { + FT_Error error = PCF_Err_Invalid_File_Format; + FT_ULong i; + + + for ( i = 0; i < ntables; i++ ) + if ( tables[i].type == type ) + { + if ( stream->pos > tables[i].offset ) + { + error = PCF_Err_Invalid_Stream_Skip; + goto Fail; + } + + if ( FT_STREAM_SKIP( tables[i].offset - stream->pos ) ) + { + error = PCF_Err_Invalid_Stream_Skip; + goto Fail; + } + + *asize = tables[i].size; + *aformat = tables[i].format; + + return PCF_Err_Ok; + } + + Fail: + *asize = 0; + return error; + } + + + static FT_Bool + pcf_has_table_type( PCF_Table tables, + FT_ULong ntables, /* same as PCF_Toc->count */ + FT_ULong type ) + { + FT_ULong i; + + + for ( i = 0; i < ntables; i++ ) + if ( tables[i].type == type ) + return TRUE; + + return FALSE; + } + + +#define PCF_PROPERTY_SIZE 9 + + static + const FT_Frame_Field pcf_property_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_ParsePropertyRec + + FT_FRAME_START( PCF_PROPERTY_SIZE ), + FT_FRAME_LONG_LE( name ), + FT_FRAME_BYTE ( isString ), + FT_FRAME_LONG_LE( value ), + FT_FRAME_END + }; + + + static + const FT_Frame_Field pcf_property_msb_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_ParsePropertyRec + + FT_FRAME_START( PCF_PROPERTY_SIZE ), + FT_FRAME_LONG( name ), + FT_FRAME_BYTE( isString ), + FT_FRAME_LONG( value ), + FT_FRAME_END + }; + + + FT_LOCAL_DEF( PCF_Property ) + pcf_find_property( PCF_Face face, + const FT_String* prop ) + { + PCF_Property properties = face->properties; + FT_Bool found = 0; + int i; + + + for ( i = 0 ; i < face->nprops && !found; i++ ) + { + if ( !ft_strcmp( properties[i].name, prop ) ) + found = 1; + } + + if ( found ) + return properties + i - 1; + else + return NULL; + } + + + static FT_Error + pcf_get_properties( FT_Stream stream, + PCF_Face face ) + { + PCF_ParseProperty props = 0; + PCF_Property properties = NULL; + FT_ULong nprops, i; + FT_ULong format, size; + FT_Error error; + FT_Memory memory = FT_FACE(face)->memory; + FT_ULong string_size; + FT_String* strings = 0; + + + error = pcf_seek_to_table_type( stream, + face->toc.tables, + face->toc.count, + PCF_PROPERTIES, + &format, + &size ); + if ( error ) + goto Bail; + + if ( FT_READ_ULONG_LE( format ) ) + goto Bail; + + FT_TRACE4(( "pcf_get_properties:\n" )); + + FT_TRACE4(( " format = %ld\n", format )); + + if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) ) + goto Bail; + + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + (void)FT_READ_ULONG( nprops ); + else + (void)FT_READ_ULONG_LE( nprops ); + if ( error ) + goto Bail; + + FT_TRACE4(( " nprop = %d (truncate %d props)\n", + (int)nprops, nprops - (int)nprops )); + + nprops = (int)nprops; + + /* rough estimate */ + if ( nprops > size / PCF_PROPERTY_SIZE ) + { + error = PCF_Err_Invalid_Table; + goto Bail; + } + + face->nprops = (int)nprops; + + if ( FT_NEW_ARRAY( props, nprops ) ) + goto Bail; + + for ( i = 0; i < nprops; i++ ) + { + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + { + if ( FT_STREAM_READ_FIELDS( pcf_property_msb_header, props + i ) ) + goto Bail; + } + else + { + if ( FT_STREAM_READ_FIELDS( pcf_property_header, props + i ) ) + goto Bail; + } + } + + /* pad the property array */ + /* */ + /* clever here - nprops is the same as the number of odd-units read, */ + /* as only isStringProp are odd length (Keith Packard) */ + /* */ + if ( nprops & 3 ) + { + i = 4 - ( nprops & 3 ); + if ( FT_STREAM_SKIP( i ) ) + { + error = PCF_Err_Invalid_Stream_Skip; + goto Bail; + } + } + + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + (void)FT_READ_ULONG( string_size ); + else + (void)FT_READ_ULONG_LE( string_size ); + if ( error ) + goto Bail; + + FT_TRACE4(( " string_size = %ld\n", string_size )); + + /* rough estimate */ + if ( string_size > size - nprops * PCF_PROPERTY_SIZE ) + { + error = PCF_Err_Invalid_Table; + goto Bail; + } + + /* allocate one more byte so that we have a final null byte */ + if ( FT_NEW_ARRAY( strings, string_size + 1 ) ) + goto Bail; + + error = FT_Stream_Read( stream, (FT_Byte*)strings, string_size ); + if ( error ) + goto Bail; + + if ( FT_NEW_ARRAY( properties, nprops ) ) + goto Bail; + + face->properties = properties; + + for ( i = 0; i < nprops; i++ ) + { + FT_Long name_offset = props[i].name; + + + if ( ( name_offset < 0 ) || + ( (FT_ULong)name_offset > string_size ) ) + { + error = PCF_Err_Invalid_Offset; + goto Bail; + } + + if ( FT_STRDUP( properties[i].name, strings + name_offset ) ) + goto Bail; + + FT_TRACE4(( " %s:", properties[i].name )); + + properties[i].isString = props[i].isString; + + if ( props[i].isString ) + { + FT_Long value_offset = props[i].value; + + + if ( ( value_offset < 0 ) || + ( (FT_ULong)value_offset > string_size ) ) + { + error = PCF_Err_Invalid_Offset; + goto Bail; + } + + if ( FT_STRDUP( properties[i].value.atom, strings + value_offset ) ) + goto Bail; + + FT_TRACE4(( " `%s'\n", properties[i].value.atom )); + } + else + { + properties[i].value.l = props[i].value; + + FT_TRACE4(( " %d\n", properties[i].value.l )); + } + } + + error = PCF_Err_Ok; + + Bail: + FT_FREE( props ); + FT_FREE( strings ); + + return error; + } + + + static FT_Error + pcf_get_metrics( FT_Stream stream, + PCF_Face face ) + { + FT_Error error = PCF_Err_Ok; + FT_Memory memory = FT_FACE(face)->memory; + FT_ULong format, size; + PCF_Metric metrics = 0; + FT_ULong nmetrics, i; + + + error = pcf_seek_to_table_type( stream, + face->toc.tables, + face->toc.count, + PCF_METRICS, + &format, + &size ); + if ( error ) + return error; + + if ( FT_READ_ULONG_LE( format ) ) + goto Bail; + + if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) && + !PCF_FORMAT_MATCH( format, PCF_COMPRESSED_METRICS ) ) + return PCF_Err_Invalid_File_Format; + + if ( PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) ) + { + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + (void)FT_READ_ULONG( nmetrics ); + else + (void)FT_READ_ULONG_LE( nmetrics ); + } + else + { + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + (void)FT_READ_USHORT( nmetrics ); + else + (void)FT_READ_USHORT_LE( nmetrics ); + } + if ( error ) + return PCF_Err_Invalid_File_Format; + + face->nmetrics = nmetrics; + + if ( !nmetrics ) + return PCF_Err_Invalid_Table; + + FT_TRACE4(( "pcf_get_metrics:\n" )); + + FT_TRACE4(( " number of metrics: %d\n", nmetrics )); + + /* rough estimate */ + if ( PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) ) + { + if ( nmetrics > size / PCF_METRIC_SIZE ) + return PCF_Err_Invalid_Table; + } + else + { + if ( nmetrics > size / PCF_COMPRESSED_METRIC_SIZE ) + return PCF_Err_Invalid_Table; + } + + if ( FT_NEW_ARRAY( face->metrics, nmetrics ) ) + return PCF_Err_Out_Of_Memory; + + metrics = face->metrics; + for ( i = 0; i < nmetrics; i++ ) + { + error = pcf_get_metric( stream, format, metrics + i ); + + metrics[i].bits = 0; + + FT_TRACE5(( " idx %d: width=%d, " + "lsb=%d, rsb=%d, ascent=%d, descent=%d, swidth=%d\n", + i, + ( metrics + i )->characterWidth, + ( metrics + i )->leftSideBearing, + ( metrics + i )->rightSideBearing, + ( metrics + i )->ascent, + ( metrics + i )->descent, + ( metrics + i )->attributes )); + + if ( error ) + break; + } + + if ( error ) + FT_FREE( face->metrics ); + + Bail: + return error; + } + + + static FT_Error + pcf_get_bitmaps( FT_Stream stream, + PCF_Face face ) + { + FT_Error error = PCF_Err_Ok; + FT_Memory memory = FT_FACE(face)->memory; + FT_Long* offsets = NULL; + FT_Long bitmapSizes[GLYPHPADOPTIONS]; + FT_ULong format, size; + FT_ULong nbitmaps, i, sizebitmaps = 0; + + + error = pcf_seek_to_table_type( stream, + face->toc.tables, + face->toc.count, + PCF_BITMAPS, + &format, + &size ); + if ( error ) + return error; + + error = FT_Stream_EnterFrame( stream, 8 ); + if ( error ) + return error; + + format = FT_GET_ULONG_LE(); + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + nbitmaps = FT_GET_ULONG(); + else + nbitmaps = FT_GET_ULONG_LE(); + + FT_Stream_ExitFrame( stream ); + + if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) ) + return PCF_Err_Invalid_File_Format; + + FT_TRACE4(( "pcf_get_bitmaps:\n" )); + + FT_TRACE4(( " number of bitmaps: %d\n", nbitmaps )); + + /* XXX: PCF_Face->nmetrics is singed FT_Long, see pcf.h */ + if ( face->nmetrics < 0 || nbitmaps != ( FT_ULong )face->nmetrics ) + return PCF_Err_Invalid_File_Format; + + if ( FT_NEW_ARRAY( offsets, nbitmaps ) ) + return error; + + for ( i = 0; i < nbitmaps; i++ ) + { + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + (void)FT_READ_LONG( offsets[i] ); + else + (void)FT_READ_LONG_LE( offsets[i] ); + + FT_TRACE5(( " bitmap %d: offset %ld (0x%lX)\n", + i, offsets[i], offsets[i] )); + } + if ( error ) + goto Bail; + + for ( i = 0; i < GLYPHPADOPTIONS; i++ ) + { + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + (void)FT_READ_LONG( bitmapSizes[i] ); + else + (void)FT_READ_LONG_LE( bitmapSizes[i] ); + if ( error ) + goto Bail; + + sizebitmaps = bitmapSizes[PCF_GLYPH_PAD_INDEX( format )]; + + FT_TRACE4(( " padding %d implies a size of %ld\n", i, bitmapSizes[i] )); + } + + FT_TRACE4(( " %d bitmaps, padding index %ld\n", + nbitmaps, + PCF_GLYPH_PAD_INDEX( format ) )); + FT_TRACE4(( " bitmap size = %d\n", sizebitmaps )); + + FT_UNUSED( sizebitmaps ); /* only used for debugging */ + + for ( i = 0; i < nbitmaps; i++ ) + { + /* rough estimate */ + if ( ( offsets[i] < 0 ) || + ( (FT_ULong)offsets[i] > size ) ) + { + FT_TRACE0(( "pcf_get_bitmaps:" + " invalid offset to bitmap data of glyph %d\n", i )); + } + else + face->metrics[i].bits = stream->pos + offsets[i]; + } + + face->bitmapsFormat = format; + + Bail: + FT_FREE( offsets ); + return error; + } + + + static FT_Error + pcf_get_encodings( FT_Stream stream, + PCF_Face face ) + { + FT_Error error = PCF_Err_Ok; + FT_Memory memory = FT_FACE(face)->memory; + FT_ULong format, size; + int firstCol, lastCol; + int firstRow, lastRow; + int nencoding, encodingOffset; + int i, j; + PCF_Encoding tmpEncoding = NULL, encoding = 0; + + + error = pcf_seek_to_table_type( stream, + face->toc.tables, + face->toc.count, + PCF_BDF_ENCODINGS, + &format, + &size ); + if ( error ) + return error; + + error = FT_Stream_EnterFrame( stream, 14 ); + if ( error ) + return error; + + format = FT_GET_ULONG_LE(); + + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + { + firstCol = FT_GET_SHORT(); + lastCol = FT_GET_SHORT(); + firstRow = FT_GET_SHORT(); + lastRow = FT_GET_SHORT(); + face->defaultChar = FT_GET_SHORT(); + } + else + { + firstCol = FT_GET_SHORT_LE(); + lastCol = FT_GET_SHORT_LE(); + firstRow = FT_GET_SHORT_LE(); + lastRow = FT_GET_SHORT_LE(); + face->defaultChar = FT_GET_SHORT_LE(); + } + + FT_Stream_ExitFrame( stream ); + + if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) ) + return PCF_Err_Invalid_File_Format; + + FT_TRACE4(( "pdf_get_encodings:\n" )); + + FT_TRACE4(( " firstCol %d, lastCol %d, firstRow %d, lastRow %d\n", + firstCol, lastCol, firstRow, lastRow )); + + nencoding = ( lastCol - firstCol + 1 ) * ( lastRow - firstRow + 1 ); + + if ( FT_NEW_ARRAY( tmpEncoding, nencoding ) ) + return PCF_Err_Out_Of_Memory; + + error = FT_Stream_EnterFrame( stream, 2 * nencoding ); + if ( error ) + goto Bail; + + for ( i = 0, j = 0 ; i < nencoding; i++ ) + { + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + encodingOffset = FT_GET_SHORT(); + else + encodingOffset = FT_GET_SHORT_LE(); + + if ( encodingOffset != -1 ) + { + tmpEncoding[j].enc = ( ( ( i / ( lastCol - firstCol + 1 ) ) + + firstRow ) * 256 ) + + ( ( i % ( lastCol - firstCol + 1 ) ) + + firstCol ); + + tmpEncoding[j].glyph = (FT_Short)encodingOffset; + + FT_TRACE5(( " code %d (0x%04X): idx %d\n", + tmpEncoding[j].enc, tmpEncoding[j].enc, + tmpEncoding[j].glyph )); + + j++; + } + } + FT_Stream_ExitFrame( stream ); + + if ( FT_NEW_ARRAY( encoding, j ) ) + goto Bail; + + for ( i = 0; i < j; i++ ) + { + encoding[i].enc = tmpEncoding[i].enc; + encoding[i].glyph = tmpEncoding[i].glyph; + } + + face->nencodings = j; + face->encodings = encoding; + FT_FREE( tmpEncoding ); + + return error; + + Bail: + FT_FREE( encoding ); + FT_FREE( tmpEncoding ); + return error; + } + + + static + const FT_Frame_Field pcf_accel_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_AccelRec + + FT_FRAME_START( 20 ), + FT_FRAME_BYTE ( noOverlap ), + FT_FRAME_BYTE ( constantMetrics ), + FT_FRAME_BYTE ( terminalFont ), + FT_FRAME_BYTE ( constantWidth ), + FT_FRAME_BYTE ( inkInside ), + FT_FRAME_BYTE ( inkMetrics ), + FT_FRAME_BYTE ( drawDirection ), + FT_FRAME_SKIP_BYTES( 1 ), + FT_FRAME_LONG_LE ( fontAscent ), + FT_FRAME_LONG_LE ( fontDescent ), + FT_FRAME_LONG_LE ( maxOverlap ), + FT_FRAME_END + }; + + + static + const FT_Frame_Field pcf_accel_msb_header[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PCF_AccelRec + + FT_FRAME_START( 20 ), + FT_FRAME_BYTE ( noOverlap ), + FT_FRAME_BYTE ( constantMetrics ), + FT_FRAME_BYTE ( terminalFont ), + FT_FRAME_BYTE ( constantWidth ), + FT_FRAME_BYTE ( inkInside ), + FT_FRAME_BYTE ( inkMetrics ), + FT_FRAME_BYTE ( drawDirection ), + FT_FRAME_SKIP_BYTES( 1 ), + FT_FRAME_LONG ( fontAscent ), + FT_FRAME_LONG ( fontDescent ), + FT_FRAME_LONG ( maxOverlap ), + FT_FRAME_END + }; + + + static FT_Error + pcf_get_accel( FT_Stream stream, + PCF_Face face, + FT_ULong type ) + { + FT_ULong format, size; + FT_Error error = PCF_Err_Ok; + PCF_Accel accel = &face->accel; + + + error = pcf_seek_to_table_type( stream, + face->toc.tables, + face->toc.count, + type, + &format, + &size ); + if ( error ) + goto Bail; + + if ( FT_READ_ULONG_LE( format ) ) + goto Bail; + + if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) && + !PCF_FORMAT_MATCH( format, PCF_ACCEL_W_INKBOUNDS ) ) + goto Bail; + + if ( PCF_BYTE_ORDER( format ) == MSBFirst ) + { + if ( FT_STREAM_READ_FIELDS( pcf_accel_msb_header, accel ) ) + goto Bail; + } + else + { + if ( FT_STREAM_READ_FIELDS( pcf_accel_header, accel ) ) + goto Bail; + } + + error = pcf_get_metric( stream, + format & ( ~PCF_FORMAT_MASK ), + &(accel->minbounds) ); + if ( error ) + goto Bail; + + error = pcf_get_metric( stream, + format & ( ~PCF_FORMAT_MASK ), + &(accel->maxbounds) ); + if ( error ) + goto Bail; + + if ( PCF_FORMAT_MATCH( format, PCF_ACCEL_W_INKBOUNDS ) ) + { + error = pcf_get_metric( stream, + format & ( ~PCF_FORMAT_MASK ), + &(accel->ink_minbounds) ); + if ( error ) + goto Bail; + + error = pcf_get_metric( stream, + format & ( ~PCF_FORMAT_MASK ), + &(accel->ink_maxbounds) ); + if ( error ) + goto Bail; + } + else + { + accel->ink_minbounds = accel->minbounds; /* I'm not sure about this */ + accel->ink_maxbounds = accel->maxbounds; + } + + Bail: + return error; + } + + + static FT_Error + pcf_interpret_style( PCF_Face pcf ) + { + FT_Error error = PCF_Err_Ok; + FT_Face face = FT_FACE( pcf ); + FT_Memory memory = face->memory; + + PCF_Property prop; + + size_t nn, len; + char* strings[4] = { NULL, NULL, NULL, NULL }; + size_t lengths[4]; + + + face->style_flags = 0; + + prop = pcf_find_property( pcf, "SLANT" ); + if ( prop && prop->isString && + ( *(prop->value.atom) == 'O' || *(prop->value.atom) == 'o' || + *(prop->value.atom) == 'I' || *(prop->value.atom) == 'i' ) ) + { + face->style_flags |= FT_STYLE_FLAG_ITALIC; + strings[2] = ( *(prop->value.atom) == 'O' || + *(prop->value.atom) == 'o' ) ? (char *)"Oblique" + : (char *)"Italic"; + } + + prop = pcf_find_property( pcf, "WEIGHT_NAME" ); + if ( prop && prop->isString && + ( *(prop->value.atom) == 'B' || *(prop->value.atom) == 'b' ) ) + { + face->style_flags |= FT_STYLE_FLAG_BOLD; + strings[1] = (char *)"Bold"; + } + + prop = pcf_find_property( pcf, "SETWIDTH_NAME" ); + if ( prop && prop->isString && + *(prop->value.atom) && + !( *(prop->value.atom) == 'N' || *(prop->value.atom) == 'n' ) ) + strings[3] = (char *)(prop->value.atom); + + prop = pcf_find_property( pcf, "ADD_STYLE_NAME" ); + if ( prop && prop->isString && + *(prop->value.atom) && + !( *(prop->value.atom) == 'N' || *(prop->value.atom) == 'n' ) ) + strings[0] = (char *)(prop->value.atom); + + for ( len = 0, nn = 0; nn < 4; nn++ ) + { + lengths[nn] = 0; + if ( strings[nn] ) + { + lengths[nn] = ft_strlen( strings[nn] ); + len += lengths[nn] + 1; + } + } + + if ( len == 0 ) + { + strings[0] = (char *)"Regular"; + lengths[0] = ft_strlen( strings[0] ); + len = lengths[0] + 1; + } + + { + char* s; + + + if ( FT_ALLOC( face->style_name, len ) ) + return error; + + s = face->style_name; + + for ( nn = 0; nn < 4; nn++ ) + { + char* src = strings[nn]; + + + len = lengths[nn]; + + if ( src == NULL ) + continue; + + /* separate elements with a space */ + if ( s != face->style_name ) + *s++ = ' '; + + ft_memcpy( s, src, len ); + + /* need to convert spaces to dashes for */ + /* add_style_name and setwidth_name */ + if ( nn == 0 || nn == 3 ) + { + size_t mm; + + + for ( mm = 0; mm < len; mm++ ) + if (s[mm] == ' ') + s[mm] = '-'; + } + + s += len; + } + *s = 0; + } + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + pcf_load_font( FT_Stream stream, + PCF_Face face ) + { + FT_Error error = PCF_Err_Ok; + FT_Memory memory = FT_FACE(face)->memory; + FT_Bool hasBDFAccelerators; + + + error = pcf_read_TOC( stream, face ); + if ( error ) + goto Exit; + + error = pcf_get_properties( stream, face ); + if ( error ) + goto Exit; + + /* Use the old accelerators if no BDF accelerators are in the file. */ + hasBDFAccelerators = pcf_has_table_type( face->toc.tables, + face->toc.count, + PCF_BDF_ACCELERATORS ); + if ( !hasBDFAccelerators ) + { + error = pcf_get_accel( stream, face, PCF_ACCELERATORS ); + if ( error ) + goto Exit; + } + + /* metrics */ + error = pcf_get_metrics( stream, face ); + if ( error ) + goto Exit; + + /* bitmaps */ + error = pcf_get_bitmaps( stream, face ); + if ( error ) + goto Exit; + + /* encodings */ + error = pcf_get_encodings( stream, face ); + if ( error ) + goto Exit; + + /* BDF style accelerators (i.e. bounds based on encoded glyphs) */ + if ( hasBDFAccelerators ) + { + error = pcf_get_accel( stream, face, PCF_BDF_ACCELERATORS ); + if ( error ) + goto Exit; + } + + /* XXX: TO DO: inkmetrics and glyph_names are missing */ + + /* now construct the face object */ + { + FT_Face root = FT_FACE( face ); + PCF_Property prop; + + + root->num_faces = 1; + root->face_index = 0; + root->face_flags = FT_FACE_FLAG_FIXED_SIZES | + FT_FACE_FLAG_HORIZONTAL | + FT_FACE_FLAG_FAST_GLYPHS; + + if ( face->accel.constantWidth ) + root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + if ( ( error = pcf_interpret_style( face ) ) != 0 ) + goto Exit; + + prop = pcf_find_property( face, "FAMILY_NAME" ); + if ( prop && prop->isString ) + { + if ( FT_STRDUP( root->family_name, prop->value.atom ) ) + goto Exit; + } + else + root->family_name = NULL; + + /* + * Note: We shift all glyph indices by +1 since we must + * respect the convention that glyph 0 always corresponds + * to the `missing glyph'. + * + * This implies bumping the number of `available' glyphs by 1. + */ + root->num_glyphs = face->nmetrics + 1; + + root->num_fixed_sizes = 1; + if ( FT_NEW_ARRAY( root->available_sizes, 1 ) ) + goto Exit; + + { + FT_Bitmap_Size* bsize = root->available_sizes; + FT_Short resolution_x = 0, resolution_y = 0; + + + FT_MEM_ZERO( bsize, sizeof ( FT_Bitmap_Size ) ); + +#if 0 + bsize->height = face->accel.maxbounds.ascent << 6; +#endif + bsize->height = (FT_Short)( face->accel.fontAscent + + face->accel.fontDescent ); + + prop = pcf_find_property( face, "AVERAGE_WIDTH" ); + if ( prop ) + bsize->width = (FT_Short)( ( prop->value.l + 5 ) / 10 ); + else + bsize->width = (FT_Short)( bsize->height * 2/3 ); + + prop = pcf_find_property( face, "POINT_SIZE" ); + if ( prop ) + /* convert from 722.7 decipoints to 72 points per inch */ + bsize->size = + (FT_Pos)( ( prop->value.l * 64 * 7200 + 36135L ) / 72270L ); + + prop = pcf_find_property( face, "PIXEL_SIZE" ); + if ( prop ) + bsize->y_ppem = (FT_Short)prop->value.l << 6; + + prop = pcf_find_property( face, "RESOLUTION_X" ); + if ( prop ) + resolution_x = (FT_Short)prop->value.l; + + prop = pcf_find_property( face, "RESOLUTION_Y" ); + if ( prop ) + resolution_y = (FT_Short)prop->value.l; + + if ( bsize->y_ppem == 0 ) + { + bsize->y_ppem = bsize->size; + if ( resolution_y ) + bsize->y_ppem = bsize->y_ppem * resolution_y / 72; + } + if ( resolution_x && resolution_y ) + bsize->x_ppem = bsize->y_ppem * resolution_x / resolution_y; + else + bsize->x_ppem = bsize->y_ppem; + } + + /* set up charset */ + { + PCF_Property charset_registry = 0, charset_encoding = 0; + + + charset_registry = pcf_find_property( face, "CHARSET_REGISTRY" ); + charset_encoding = pcf_find_property( face, "CHARSET_ENCODING" ); + + if ( charset_registry && charset_registry->isString && + charset_encoding && charset_encoding->isString ) + { + if ( FT_STRDUP( face->charset_encoding, + charset_encoding->value.atom ) || + FT_STRDUP( face->charset_registry, + charset_registry->value.atom ) ) + goto Exit; + } + } + } + + Exit: + if ( error ) + { + /* This is done to respect the behaviour of the original */ + /* PCF font driver. */ + error = PCF_Err_Invalid_File_Format; + } + + return error; + } + + +/* END */ diff --git a/src/pcf/pcfread.h b/src/pcf/pcfread.h new file mode 100644 index 0000000..c9524f1 --- /dev/null +++ b/src/pcf/pcfread.h @@ -0,0 +1,45 @@ +/* pcfread.h + + FreeType font driver for pcf fonts + + Copyright 2003 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#ifndef __PCFREAD_H__ +#define __PCFREAD_H__ + + +#include <ft2build.h> + +FT_BEGIN_HEADER + + FT_LOCAL( PCF_Property ) + pcf_find_property( PCF_Face face, + const FT_String* prop ); + +FT_END_HEADER + +#endif /* __PCFREAD_H__ */ + + +/* END */ diff --git a/src/pcf/pcfutil.c b/src/pcf/pcfutil.c new file mode 100644 index 0000000..b91274f --- /dev/null +++ b/src/pcf/pcfutil.c @@ -0,0 +1,104 @@ +/* + +Copyright 1990, 1994, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + +*/ +/* $XFree86: xc/lib/font/util/utilbitmap.c,v 1.3 1999/08/22 08:58:58 dawes Exp $ */ + +/* + * Author: Keith Packard, MIT X Consortium + */ + +/* Modified for use with FreeType */ + + +#include <ft2build.h> +#include "pcfutil.h" + + + /* + * Invert bit order within each BYTE of an array. + */ + + FT_LOCAL_DEF( void ) + BitOrderInvert( unsigned char* buf, + size_t nbytes ) + { + for ( ; nbytes > 0; nbytes--, buf++ ) + { + unsigned int val = *buf; + + + val = ( ( val >> 1 ) & 0x55 ) | ( ( val << 1 ) & 0xAA ); + val = ( ( val >> 2 ) & 0x33 ) | ( ( val << 2 ) & 0xCC ); + val = ( ( val >> 4 ) & 0x0F ) | ( ( val << 4 ) & 0xF0 ); + + *buf = (unsigned char)val; + } + } + + + /* + * Invert byte order within each 16-bits of an array. + */ + + FT_LOCAL_DEF( void ) + TwoByteSwap( unsigned char* buf, + size_t nbytes ) + { + unsigned char c; + + + for ( ; nbytes >= 2; nbytes -= 2, buf += 2 ) + { + c = buf[0]; + buf[0] = buf[1]; + buf[1] = c; + } + } + + /* + * Invert byte order within each 32-bits of an array. + */ + + FT_LOCAL_DEF( void ) + FourByteSwap( unsigned char* buf, + size_t nbytes ) + { + unsigned char c; + + + for ( ; nbytes >= 4; nbytes -= 4, buf += 4 ) + { + c = buf[0]; + buf[0] = buf[3]; + buf[3] = c; + + c = buf[1]; + buf[1] = buf[2]; + buf[2] = c; + } + } + + +/* END */ diff --git a/src/pcf/pcfutil.h b/src/pcf/pcfutil.h new file mode 100644 index 0000000..ce10fb5 --- /dev/null +++ b/src/pcf/pcfutil.h @@ -0,0 +1,55 @@ +/* pcfutil.h + + FreeType font driver for pcf fonts + + Copyright 2000, 2001, 2004 by + Francesco Zappa Nardelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + + +#ifndef __PCFUTIL_H__ +#define __PCFUTIL_H__ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H + + +FT_BEGIN_HEADER + + FT_LOCAL( void ) + BitOrderInvert( unsigned char* buf, + size_t nbytes ); + + FT_LOCAL( void ) + TwoByteSwap( unsigned char* buf, + size_t nbytes ); + + FT_LOCAL( void ) + FourByteSwap( unsigned char* buf, + size_t nbytes ); + +FT_END_HEADER + +#endif /* __PCFUTIL_H__ */ + + +/* END */ diff --git a/src/pcf/rules.mk b/src/pcf/rules.mk new file mode 100644 index 0000000..7864152 --- /dev/null +++ b/src/pcf/rules.mk @@ -0,0 +1,79 @@ +# +# FreeType 2 pcf driver configuration rules +# + + +# Copyright (C) 2000, 2001, 2003, 2008 by +# Francesco Zappa Nardelli +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +# THE SOFTWARE. + + +# pcf driver directory +# +PCF_DIR := $(SRC_DIR)/pcf + + +PCF_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(PCF_DIR)) + + +# pcf driver sources (i.e., C files) +# +PCF_DRV_SRC := $(PCF_DIR)/pcfdrivr.c \ + $(PCF_DIR)/pcfread.c \ + $(PCF_DIR)/pcfutil.c + +# pcf driver headers +# +PCF_DRV_H := $(PCF_DRV_SRC:%.c=%.h) \ + $(PCF_DIR)/pcf.h \ + $(PCF_DIR)/pcferror.h + +# pcf driver object(s) +# +# PCF_DRV_OBJ_M is used during `multi' builds +# PCF_DRV_OBJ_S is used during `single' builds +# +PCF_DRV_OBJ_M := $(PCF_DRV_SRC:$(PCF_DIR)/%.c=$(OBJ_DIR)/%.$O) +PCF_DRV_OBJ_S := $(OBJ_DIR)/pcf.$O + +# pcf driver source file for single build +# +PCF_DRV_SRC_S := $(PCF_DIR)/pcf.c + + +# pcf driver - single object +# +$(PCF_DRV_OBJ_S): $(PCF_DRV_SRC_S) $(PCF_DRV_SRC) $(FREETYPE_H) $(PCF_DRV_H) + $(PCF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(PCF_DRV_SRC_S)) + + +# pcf driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(PCF_DIR)/%.c $(FREETYPE_H) $(PCF_DRV_H) + $(PCF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(PCF_DRV_OBJ_S) +DRV_OBJS_M += $(PCF_DRV_OBJ_M) + + +# EOF diff --git a/src/pfr/Jamfile b/src/pfr/Jamfile new file mode 100644 index 0000000..9e2f2b8 --- /dev/null +++ b/src/pfr/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/pfr Jamfile +# +# Copyright 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) pfr ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = pfrdrivr pfrgload pfrload pfrobjs pfrcmap pfrsbit ; + } + else + { + _sources = pfr ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/pfr Jamfile diff --git a/src/pfr/module.mk b/src/pfr/module.mk new file mode 100644 index 0000000..8d1d28a --- /dev/null +++ b/src/pfr/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 PFR module definition +# + + +# Copyright 2002, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += PFR_DRIVER + +define PFR_DRIVER +$(OPEN_DRIVER) FT_Driver_ClassRec, pfr_driver_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)pfr $(ECHO_DRIVER_DESC)PFR/TrueDoc font files with extension *.pfr$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/pfr/pfr.c b/src/pfr/pfr.c new file mode 100644 index 0000000..eb2c4ed --- /dev/null +++ b/src/pfr/pfr.c @@ -0,0 +1,29 @@ +/***************************************************************************/ +/* */ +/* pfr.c */ +/* */ +/* FreeType PFR driver component. */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> + +#include "pfrload.c" +#include "pfrgload.c" +#include "pfrcmap.c" +#include "pfrobjs.c" +#include "pfrdrivr.c" +#include "pfrsbit.c" + +/* END */ diff --git a/src/pfr/pfrcmap.c b/src/pfr/pfrcmap.c new file mode 100644 index 0000000..9c8f9ed --- /dev/null +++ b/src/pfr/pfrcmap.c @@ -0,0 +1,166 @@ +/***************************************************************************/ +/* */ +/* pfrcmap.c */ +/* */ +/* FreeType PFR cmap handling (body). */ +/* */ +/* Copyright 2002, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "pfrcmap.h" +#include "pfrobjs.h" + +#include "pfrerror.h" + + + FT_CALLBACK_DEF( FT_Error ) + pfr_cmap_init( PFR_CMap cmap ) + { + FT_Error error = PFR_Err_Ok; + PFR_Face face = (PFR_Face)FT_CMAP_FACE( cmap ); + + + cmap->num_chars = face->phy_font.num_chars; + cmap->chars = face->phy_font.chars; + + /* just for safety, check that the character entries are correctly */ + /* sorted in increasing character code order */ + { + FT_UInt n; + + + for ( n = 1; n < cmap->num_chars; n++ ) + { + if ( cmap->chars[n - 1].char_code >= cmap->chars[n].char_code ) + { + error = PFR_Err_Invalid_Table; + goto Exit; + } + } + } + + Exit: + return error; + } + + + FT_CALLBACK_DEF( void ) + pfr_cmap_done( PFR_CMap cmap ) + { + cmap->chars = NULL; + cmap->num_chars = 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + pfr_cmap_char_index( PFR_CMap cmap, + FT_UInt32 char_code ) + { + FT_UInt min = 0; + FT_UInt max = cmap->num_chars; + FT_UInt mid; + PFR_Char gchar; + + + while ( min < max ) + { + mid = min + ( max - min ) / 2; + gchar = cmap->chars + mid; + + if ( gchar->char_code == char_code ) + return mid + 1; + + if ( gchar->char_code < char_code ) + min = mid + 1; + else + max = mid; + } + return 0; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + pfr_cmap_char_next( PFR_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt result = 0; + FT_UInt32 char_code = *pchar_code + 1; + + + Restart: + { + FT_UInt min = 0; + FT_UInt max = cmap->num_chars; + FT_UInt mid; + PFR_Char gchar; + + + while ( min < max ) + { + mid = min + ( ( max - min ) >> 1 ); + gchar = cmap->chars + mid; + + if ( gchar->char_code == char_code ) + { + result = mid; + if ( result != 0 ) + { + result++; + goto Exit; + } + + char_code++; + goto Restart; + } + + if ( gchar->char_code < char_code ) + min = mid+1; + else + max = mid; + } + + /* we didn't find it, but we have a pair just above it */ + char_code = 0; + + if ( min < cmap->num_chars ) + { + gchar = cmap->chars + min; + result = min; + if ( result != 0 ) + { + result++; + char_code = gchar->char_code; + } + } + } + + Exit: + *pchar_code = char_code; + return result; + } + + + FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec + pfr_cmap_class_rec = + { + sizeof ( PFR_CMapRec ), + + (FT_CMap_InitFunc) pfr_cmap_init, + (FT_CMap_DoneFunc) pfr_cmap_done, + (FT_CMap_CharIndexFunc)pfr_cmap_char_index, + (FT_CMap_CharNextFunc) pfr_cmap_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + +/* END */ diff --git a/src/pfr/pfrcmap.h b/src/pfr/pfrcmap.h new file mode 100644 index 0000000..a626953 --- /dev/null +++ b/src/pfr/pfrcmap.h @@ -0,0 +1,46 @@ +/***************************************************************************/ +/* */ +/* pfrcmap.h */ +/* */ +/* FreeType PFR cmap handling (specification). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFRCMAP_H__ +#define __PFRCMAP_H__ + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include "pfrtypes.h" + + +FT_BEGIN_HEADER + + typedef struct PFR_CMapRec_ + { + FT_CMapRec cmap; + FT_UInt num_chars; + PFR_Char chars; + + } PFR_CMapRec, *PFR_CMap; + + + FT_CALLBACK_TABLE const FT_CMap_ClassRec pfr_cmap_class_rec; + +FT_END_HEADER + + +#endif /* __PFRCMAP_H__ */ + + +/* END */ diff --git a/src/pfr/pfrdrivr.c b/src/pfr/pfrdrivr.c new file mode 100644 index 0000000..c59d8ae --- /dev/null +++ b/src/pfr/pfrdrivr.c @@ -0,0 +1,214 @@ +/***************************************************************************/ +/* */ +/* pfrdrivr.c */ +/* */ +/* FreeType PFR driver interface (body). */ +/* */ +/* Copyright 2002-2004, 2006, 2008, 2010, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_SERVICE_PFR_H +#include FT_SERVICE_XFREE86_NAME_H +#include "pfrdrivr.h" +#include "pfrobjs.h" + +#include "pfrerror.h" + + + FT_CALLBACK_DEF( FT_Error ) + pfr_get_kerning( FT_Face pfrface, /* PFR_Face */ + FT_UInt left, + FT_UInt right, + FT_Vector *avector ) + { + PFR_Face face = (PFR_Face)pfrface; + PFR_PhyFont phys = &face->phy_font; + + + pfr_face_get_kerning( pfrface, left, right, avector ); + + /* convert from metrics to outline units when necessary */ + if ( phys->outline_resolution != phys->metrics_resolution ) + { + if ( avector->x != 0 ) + avector->x = FT_MulDiv( avector->x, phys->outline_resolution, + phys->metrics_resolution ); + + if ( avector->y != 0 ) + avector->y = FT_MulDiv( avector->x, phys->outline_resolution, + phys->metrics_resolution ); + } + + return PFR_Err_Ok; + } + + + /* + * PFR METRICS SERVICE + * + */ + + FT_CALLBACK_DEF( FT_Error ) + pfr_get_advance( FT_Face pfrface, /* PFR_Face */ + FT_UInt gindex, + FT_Pos *anadvance ) + { + PFR_Face face = (PFR_Face)pfrface; + FT_Error error = PFR_Err_Invalid_Argument; + + + *anadvance = 0; + + if ( !gindex ) + goto Exit; + + gindex--; + + if ( face ) + { + PFR_PhyFont phys = &face->phy_font; + + + if ( gindex < phys->num_chars ) + { + *anadvance = phys->chars[gindex].advance; + error = PFR_Err_Ok; + } + } + + Exit: + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + pfr_get_metrics( FT_Face pfrface, /* PFR_Face */ + FT_UInt *anoutline_resolution, + FT_UInt *ametrics_resolution, + FT_Fixed *ametrics_x_scale, + FT_Fixed *ametrics_y_scale ) + { + PFR_Face face = (PFR_Face)pfrface; + PFR_PhyFont phys = &face->phy_font; + FT_Fixed x_scale, y_scale; + FT_Size size = face->root.size; + + + if ( anoutline_resolution ) + *anoutline_resolution = phys->outline_resolution; + + if ( ametrics_resolution ) + *ametrics_resolution = phys->metrics_resolution; + + x_scale = 0x10000L; + y_scale = 0x10000L; + + if ( size ) + { + x_scale = FT_DivFix( size->metrics.x_ppem << 6, + phys->metrics_resolution ); + + y_scale = FT_DivFix( size->metrics.y_ppem << 6, + phys->metrics_resolution ); + } + + if ( ametrics_x_scale ) + *ametrics_x_scale = x_scale; + + if ( ametrics_y_scale ) + *ametrics_y_scale = y_scale; + + return PFR_Err_Ok; + } + + + FT_CALLBACK_TABLE_DEF + const FT_Service_PfrMetricsRec pfr_metrics_service_rec = + { + pfr_get_metrics, + pfr_face_get_kerning, + pfr_get_advance + }; + + + /* + * SERVICE LIST + * + */ + + static const FT_ServiceDescRec pfr_services[] = + { + { FT_SERVICE_ID_PFR_METRICS, &pfr_metrics_service_rec }, + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_PFR }, + { NULL, NULL } + }; + + + FT_CALLBACK_DEF( FT_Module_Interface ) + pfr_get_service( FT_Module module, + const FT_String* service_id ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( pfr_services, service_id ); + } + + + FT_CALLBACK_TABLE_DEF + const FT_Driver_ClassRec pfr_driver_class = + { + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_SCALABLE, + + sizeof ( FT_DriverRec ), + + "pfr", + 0x10000L, + 0x20000L, + + NULL, + + 0, /* FT_Module_Constructor */ + 0, /* FT_Module_Destructor */ + pfr_get_service + }, + + sizeof ( PFR_FaceRec ), + sizeof ( PFR_SizeRec ), + sizeof ( PFR_SlotRec ), + + pfr_face_init, + pfr_face_done, + 0, /* FT_Size_InitFunc */ + 0, /* FT_Size_DoneFunc */ + pfr_slot_init, + pfr_slot_done, + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + pfr_slot_load, + + pfr_get_kerning, + 0, /* FT_Face_AttachFunc */ + 0, /* FT_Face_GetAdvancesFunc */ + 0, /* FT_Size_RequestFunc */ + 0, /* FT_Size_SelectFunc */ + }; + + +/* END */ diff --git a/src/pfr/pfrdrivr.h b/src/pfr/pfrdrivr.h new file mode 100644 index 0000000..75f86c5 --- /dev/null +++ b/src/pfr/pfrdrivr.h @@ -0,0 +1,43 @@ +/***************************************************************************/ +/* */ +/* pfrdrivr.h */ +/* */ +/* High-level Type PFR driver interface (specification). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFRDRIVR_H__ +#define __PFRDRIVR_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_EXPORT_VAR( const FT_Driver_ClassRec ) pfr_driver_class; + + +FT_END_HEADER + + +#endif /* __PFRDRIVR_H__ */ + + +/* END */ diff --git a/src/pfr/pfrerror.h b/src/pfr/pfrerror.h new file mode 100644 index 0000000..94dc8c5 --- /dev/null +++ b/src/pfr/pfrerror.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* pfrerror.h */ +/* */ +/* PFR error codes (specification only). */ +/* */ +/* Copyright 2002, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the PFR error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __PFRERROR_H__ +#define __PFRERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX PFR_Err_ +#define FT_ERR_BASE FT_Mod_Err_PFR + +#include FT_ERRORS_H + +#endif /* __PFRERROR_H__ */ + + +/* END */ diff --git a/src/pfr/pfrgload.c b/src/pfr/pfrgload.c new file mode 100644 index 0000000..6f65b01 --- /dev/null +++ b/src/pfr/pfrgload.c @@ -0,0 +1,844 @@ +/***************************************************************************/ +/* */ +/* pfrgload.c */ +/* */ +/* FreeType PFR glyph loader (body). */ +/* */ +/* Copyright 2002, 2003, 2005, 2007, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "pfrgload.h" +#include "pfrsbit.h" +#include "pfrload.h" /* for macro definitions */ +#include FT_INTERNAL_DEBUG_H + +#include "pfrerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pfr + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PFR GLYPH BUILDER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( void ) + pfr_glyph_init( PFR_Glyph glyph, + FT_GlyphLoader loader ) + { + FT_ZERO( glyph ); + + glyph->loader = loader; + glyph->path_begun = 0; + + FT_GlyphLoader_Rewind( loader ); + } + + + FT_LOCAL_DEF( void ) + pfr_glyph_done( PFR_Glyph glyph ) + { + FT_Memory memory = glyph->loader->memory; + + + FT_FREE( glyph->x_control ); + glyph->y_control = NULL; + + glyph->max_xy_control = 0; +#if 0 + glyph->num_x_control = 0; + glyph->num_y_control = 0; +#endif + + FT_FREE( glyph->subs ); + + glyph->max_subs = 0; + glyph->num_subs = 0; + + glyph->loader = NULL; + glyph->path_begun = 0; + } + + + /* close current contour, if any */ + static void + pfr_glyph_close_contour( PFR_Glyph glyph ) + { + FT_GlyphLoader loader = glyph->loader; + FT_Outline* outline = &loader->current.outline; + FT_Int last, first; + + + if ( !glyph->path_begun ) + return; + + /* compute first and last point indices in current glyph outline */ + last = outline->n_points - 1; + first = 0; + if ( outline->n_contours > 0 ) + first = outline->contours[outline->n_contours - 1]; + + /* if the last point falls on the same location than the first one */ + /* we need to delete it */ + if ( last > first ) + { + FT_Vector* p1 = outline->points + first; + FT_Vector* p2 = outline->points + last; + + + if ( p1->x == p2->x && p1->y == p2->y ) + { + outline->n_points--; + last--; + } + } + + /* don't add empty contours */ + if ( last >= first ) + outline->contours[outline->n_contours++] = (short)last; + + glyph->path_begun = 0; + } + + + /* reset glyph to start the loading of a new glyph */ + static void + pfr_glyph_start( PFR_Glyph glyph ) + { + glyph->path_begun = 0; + } + + + static FT_Error + pfr_glyph_line_to( PFR_Glyph glyph, + FT_Vector* to ) + { + FT_GlyphLoader loader = glyph->loader; + FT_Outline* outline = &loader->current.outline; + FT_Error error; + + + /* check that we have begun a new path */ + if ( !glyph->path_begun ) + { + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_glyph_line_to: invalid glyph data\n" )); + goto Exit; + } + + error = FT_GLYPHLOADER_CHECK_POINTS( loader, 1, 0 ); + if ( !error ) + { + FT_UInt n = outline->n_points; + + + outline->points[n] = *to; + outline->tags [n] = FT_CURVE_TAG_ON; + + outline->n_points++; + } + + Exit: + return error; + } + + + static FT_Error + pfr_glyph_curve_to( PFR_Glyph glyph, + FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to ) + { + FT_GlyphLoader loader = glyph->loader; + FT_Outline* outline = &loader->current.outline; + FT_Error error; + + + /* check that we have begun a new path */ + if ( !glyph->path_begun ) + { + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_glyph_line_to: invalid glyph data\n" )); + goto Exit; + } + + error = FT_GLYPHLOADER_CHECK_POINTS( loader, 3, 0 ); + if ( !error ) + { + FT_Vector* vec = outline->points + outline->n_points; + FT_Byte* tag = (FT_Byte*)outline->tags + outline->n_points; + + + vec[0] = *control1; + vec[1] = *control2; + vec[2] = *to; + tag[0] = FT_CURVE_TAG_CUBIC; + tag[1] = FT_CURVE_TAG_CUBIC; + tag[2] = FT_CURVE_TAG_ON; + + outline->n_points = (FT_Short)( outline->n_points + 3 ); + } + + Exit: + return error; + } + + + static FT_Error + pfr_glyph_move_to( PFR_Glyph glyph, + FT_Vector* to ) + { + FT_GlyphLoader loader = glyph->loader; + FT_Error error; + + + /* close current contour if any */ + pfr_glyph_close_contour( glyph ); + + /* indicate that a new contour has started */ + glyph->path_begun = 1; + + /* check that there is space for a new contour and a new point */ + error = FT_GLYPHLOADER_CHECK_POINTS( loader, 1, 1 ); + if ( !error ) + /* add new start point */ + error = pfr_glyph_line_to( glyph, to ); + + return error; + } + + + static void + pfr_glyph_end( PFR_Glyph glyph ) + { + /* close current contour if any */ + pfr_glyph_close_contour( glyph ); + + /* merge the current glyph into the stack */ + FT_GlyphLoader_Add( glyph->loader ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PFR GLYPH LOADER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* load a simple glyph */ + static FT_Error + pfr_glyph_load_simple( PFR_Glyph glyph, + FT_Byte* p, + FT_Byte* limit ) + { + FT_Error error = PFR_Err_Ok; + FT_Memory memory = glyph->loader->memory; + FT_UInt flags, x_count, y_count, i, count, mask; + FT_Int x; + + + PFR_CHECK( 1 ); + flags = PFR_NEXT_BYTE( p ); + + /* test for composite glyphs */ + if ( flags & PFR_GLYPH_IS_COMPOUND ) + goto Failure; + + x_count = 0; + y_count = 0; + + if ( flags & PFR_GLYPH_1BYTE_XYCOUNT ) + { + PFR_CHECK( 1 ); + count = PFR_NEXT_BYTE( p ); + x_count = count & 15; + y_count = count >> 4; + } + else + { + if ( flags & PFR_GLYPH_XCOUNT ) + { + PFR_CHECK( 1 ); + x_count = PFR_NEXT_BYTE( p ); + } + + if ( flags & PFR_GLYPH_YCOUNT ) + { + PFR_CHECK( 1 ); + y_count = PFR_NEXT_BYTE( p ); + } + } + + count = x_count + y_count; + + /* re-allocate array when necessary */ + if ( count > glyph->max_xy_control ) + { + FT_UInt new_max = FT_PAD_CEIL( count, 8 ); + + + if ( FT_RENEW_ARRAY( glyph->x_control, + glyph->max_xy_control, + new_max ) ) + goto Exit; + + glyph->max_xy_control = new_max; + } + + glyph->y_control = glyph->x_control + x_count; + + mask = 0; + x = 0; + + for ( i = 0; i < count; i++ ) + { + if ( ( i & 7 ) == 0 ) + { + PFR_CHECK( 1 ); + mask = PFR_NEXT_BYTE( p ); + } + + if ( mask & 1 ) + { + PFR_CHECK( 2 ); + x = PFR_NEXT_SHORT( p ); + } + else + { + PFR_CHECK( 1 ); + x += PFR_NEXT_BYTE( p ); + } + + glyph->x_control[i] = x; + + mask >>= 1; + } + + /* XXX: for now we ignore the secondary stroke and edge definitions */ + /* since we don't want to support native PFR hinting */ + /* */ + if ( flags & PFR_GLYPH_EXTRA_ITEMS ) + { + error = pfr_extra_items_skip( &p, limit ); + if ( error ) + goto Exit; + } + + pfr_glyph_start( glyph ); + + /* now load a simple glyph */ + { + FT_Vector pos[4]; + FT_Vector* cur; + + + pos[0].x = pos[0].y = 0; + pos[3] = pos[0]; + + for (;;) + { + FT_UInt format, format_low, args_format = 0, args_count, n; + + + /***************************************************************/ + /* read instruction */ + /* */ + PFR_CHECK( 1 ); + format = PFR_NEXT_BYTE( p ); + format_low = format & 15; + + switch ( format >> 4 ) + { + case 0: /* end glyph */ + FT_TRACE6(( "- end glyph" )); + args_count = 0; + break; + + case 1: /* general line operation */ + FT_TRACE6(( "- general line" )); + goto Line1; + + case 4: /* move to inside contour */ + FT_TRACE6(( "- move to inside" )); + goto Line1; + + case 5: /* move to outside contour */ + FT_TRACE6(( "- move to outside" )); + Line1: + args_format = format_low; + args_count = 1; + break; + + case 2: /* horizontal line to */ + FT_TRACE6(( "- horizontal line to cx.%d", format_low )); + if ( format_low >= x_count ) + goto Failure; + pos[0].x = glyph->x_control[format_low]; + pos[0].y = pos[3].y; + pos[3] = pos[0]; + args_count = 0; + break; + + case 3: /* vertical line to */ + FT_TRACE6(( "- vertical line to cy.%d", format_low )); + if ( format_low >= y_count ) + goto Failure; + pos[0].x = pos[3].x; + pos[0].y = glyph->y_control[format_low]; + pos[3] = pos[0]; + args_count = 0; + break; + + case 6: /* horizontal to vertical curve */ + FT_TRACE6(( "- hv curve " )); + args_format = 0xB8E; + args_count = 3; + break; + + case 7: /* vertical to horizontal curve */ + FT_TRACE6(( "- vh curve" )); + args_format = 0xE2B; + args_count = 3; + break; + + default: /* general curve to */ + FT_TRACE6(( "- general curve" )); + args_count = 4; + args_format = format_low; + } + + /***********************************************************/ + /* now read arguments */ + /* */ + cur = pos; + for ( n = 0; n < args_count; n++ ) + { + FT_UInt idx; + FT_Int delta; + + + /* read the X argument */ + switch ( args_format & 3 ) + { + case 0: /* 8-bit index */ + PFR_CHECK( 1 ); + idx = PFR_NEXT_BYTE( p ); + if ( idx >= x_count ) + goto Failure; + cur->x = glyph->x_control[idx]; + FT_TRACE7(( " cx#%d", idx )); + break; + + case 1: /* 16-bit value */ + PFR_CHECK( 2 ); + cur->x = PFR_NEXT_SHORT( p ); + FT_TRACE7(( " x.%d", cur->x )); + break; + + case 2: /* 8-bit delta */ + PFR_CHECK( 1 ); + delta = PFR_NEXT_INT8( p ); + cur->x = pos[3].x + delta; + FT_TRACE7(( " dx.%d", delta )); + break; + + default: + FT_TRACE7(( " |" )); + cur->x = pos[3].x; + } + + /* read the Y argument */ + switch ( ( args_format >> 2 ) & 3 ) + { + case 0: /* 8-bit index */ + PFR_CHECK( 1 ); + idx = PFR_NEXT_BYTE( p ); + if ( idx >= y_count ) + goto Failure; + cur->y = glyph->y_control[idx]; + FT_TRACE7(( " cy#%d", idx )); + break; + + case 1: /* 16-bit absolute value */ + PFR_CHECK( 2 ); + cur->y = PFR_NEXT_SHORT( p ); + FT_TRACE7(( " y.%d", cur->y )); + break; + + case 2: /* 8-bit delta */ + PFR_CHECK( 1 ); + delta = PFR_NEXT_INT8( p ); + cur->y = pos[3].y + delta; + FT_TRACE7(( " dy.%d", delta )); + break; + + default: + FT_TRACE7(( " -" )); + cur->y = pos[3].y; + } + + /* read the additional format flag for the general curve */ + if ( n == 0 && args_count == 4 ) + { + PFR_CHECK( 1 ); + args_format = PFR_NEXT_BYTE( p ); + args_count--; + } + else + args_format >>= 4; + + /* save the previous point */ + pos[3] = cur[0]; + cur++; + } + + FT_TRACE7(( "\n" )); + + /***********************************************************/ + /* finally, execute instruction */ + /* */ + switch ( format >> 4 ) + { + case 0: /* end glyph => EXIT */ + pfr_glyph_end( glyph ); + goto Exit; + + case 1: /* line operations */ + case 2: + case 3: + error = pfr_glyph_line_to( glyph, pos ); + goto Test_Error; + + case 4: /* move to inside contour */ + case 5: /* move to outside contour */ + error = pfr_glyph_move_to( glyph, pos ); + goto Test_Error; + + default: /* curve operations */ + error = pfr_glyph_curve_to( glyph, pos, pos + 1, pos + 2 ); + + Test_Error: /* test error condition */ + if ( error ) + goto Exit; + } + } /* for (;;) */ + } + + Exit: + return error; + + Failure: + Too_Short: + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_glyph_load_simple: invalid glyph data\n" )); + goto Exit; + } + + + /* load a composite/compound glyph */ + static FT_Error + pfr_glyph_load_compound( PFR_Glyph glyph, + FT_Byte* p, + FT_Byte* limit ) + { + FT_Error error = PFR_Err_Ok; + FT_GlyphLoader loader = glyph->loader; + FT_Memory memory = loader->memory; + PFR_SubGlyph subglyph; + FT_UInt flags, i, count, org_count; + FT_Int x_pos, y_pos; + + + PFR_CHECK( 1 ); + flags = PFR_NEXT_BYTE( p ); + + /* test for composite glyphs */ + if ( !( flags & PFR_GLYPH_IS_COMPOUND ) ) + goto Failure; + + count = flags & 0x3F; + + /* ignore extra items when present */ + /* */ + if ( flags & PFR_GLYPH_EXTRA_ITEMS ) + { + error = pfr_extra_items_skip( &p, limit ); + if (error) goto Exit; + } + + /* we can't rely on the FT_GlyphLoader to load sub-glyphs, because */ + /* the PFR format is dumb, using direct file offsets to point to the */ + /* sub-glyphs (instead of glyph indices). Sigh. */ + /* */ + /* For now, we load the list of sub-glyphs into a different array */ + /* but this will prevent us from using the auto-hinter at its best */ + /* quality. */ + /* */ + org_count = glyph->num_subs; + + if ( org_count + count > glyph->max_subs ) + { + FT_UInt new_max = ( org_count + count + 3 ) & (FT_UInt)-4; + + + /* we arbitrarily limit the number of subglyphs */ + /* to avoid endless recursion */ + if ( new_max > 64 ) + { + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_glyph_load_compound:" + " too many compound glyphs components\n" )); + goto Exit; + } + + if ( FT_RENEW_ARRAY( glyph->subs, glyph->max_subs, new_max ) ) + goto Exit; + + glyph->max_subs = new_max; + } + + subglyph = glyph->subs + org_count; + + for ( i = 0; i < count; i++, subglyph++ ) + { + FT_UInt format; + + + x_pos = 0; + y_pos = 0; + + PFR_CHECK( 1 ); + format = PFR_NEXT_BYTE( p ); + + /* read scale when available */ + subglyph->x_scale = 0x10000L; + if ( format & PFR_SUBGLYPH_XSCALE ) + { + PFR_CHECK( 2 ); + subglyph->x_scale = PFR_NEXT_SHORT( p ) << 4; + } + + subglyph->y_scale = 0x10000L; + if ( format & PFR_SUBGLYPH_YSCALE ) + { + PFR_CHECK( 2 ); + subglyph->y_scale = PFR_NEXT_SHORT( p ) << 4; + } + + /* read offset */ + switch ( format & 3 ) + { + case 1: + PFR_CHECK( 2 ); + x_pos = PFR_NEXT_SHORT( p ); + break; + + case 2: + PFR_CHECK( 1 ); + x_pos += PFR_NEXT_INT8( p ); + break; + + default: + ; + } + + switch ( ( format >> 2 ) & 3 ) + { + case 1: + PFR_CHECK( 2 ); + y_pos = PFR_NEXT_SHORT( p ); + break; + + case 2: + PFR_CHECK( 1 ); + y_pos += PFR_NEXT_INT8( p ); + break; + + default: + ; + } + + subglyph->x_delta = x_pos; + subglyph->y_delta = y_pos; + + /* read glyph position and size now */ + if ( format & PFR_SUBGLYPH_2BYTE_SIZE ) + { + PFR_CHECK( 2 ); + subglyph->gps_size = PFR_NEXT_USHORT( p ); + } + else + { + PFR_CHECK( 1 ); + subglyph->gps_size = PFR_NEXT_BYTE( p ); + } + + if ( format & PFR_SUBGLYPH_3BYTE_OFFSET ) + { + PFR_CHECK( 3 ); + subglyph->gps_offset = PFR_NEXT_LONG( p ); + } + else + { + PFR_CHECK( 2 ); + subglyph->gps_offset = PFR_NEXT_USHORT( p ); + } + + glyph->num_subs++; + } + + Exit: + return error; + + Failure: + Too_Short: + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_glyph_load_compound: invalid glyph data\n" )); + goto Exit; + } + + + static FT_Error + pfr_glyph_load_rec( PFR_Glyph glyph, + FT_Stream stream, + FT_ULong gps_offset, + FT_ULong offset, + FT_ULong size ) + { + FT_Error error; + FT_Byte* p; + FT_Byte* limit; + + + if ( FT_STREAM_SEEK( gps_offset + offset ) || + FT_FRAME_ENTER( size ) ) + goto Exit; + + p = (FT_Byte*)stream->cursor; + limit = p + size; + + if ( size > 0 && *p & PFR_GLYPH_IS_COMPOUND ) + { + FT_Int n, old_count, count; + FT_GlyphLoader loader = glyph->loader; + FT_Outline* base = &loader->base.outline; + + + old_count = glyph->num_subs; + + /* this is a compound glyph - load it */ + error = pfr_glyph_load_compound( glyph, p, limit ); + + FT_FRAME_EXIT(); + + if ( error ) + goto Exit; + + count = glyph->num_subs - old_count; + + FT_TRACE4(( "compound glyph with %d elements (offset %lu):\n", + count, offset )); + + /* now, load each individual glyph */ + for ( n = 0; n < count; n++ ) + { + FT_Int i, old_points, num_points; + PFR_SubGlyph subglyph; + + + FT_TRACE4(( "subglyph %d:\n", n )); + + subglyph = glyph->subs + old_count + n; + old_points = base->n_points; + + error = pfr_glyph_load_rec( glyph, stream, gps_offset, + subglyph->gps_offset, + subglyph->gps_size ); + if ( error ) + break; + + /* note that `glyph->subs' might have been re-allocated */ + subglyph = glyph->subs + old_count + n; + num_points = base->n_points - old_points; + + /* translate and eventually scale the new glyph points */ + if ( subglyph->x_scale != 0x10000L || subglyph->y_scale != 0x10000L ) + { + FT_Vector* vec = base->points + old_points; + + + for ( i = 0; i < num_points; i++, vec++ ) + { + vec->x = FT_MulFix( vec->x, subglyph->x_scale ) + + subglyph->x_delta; + vec->y = FT_MulFix( vec->y, subglyph->y_scale ) + + subglyph->y_delta; + } + } + else + { + FT_Vector* vec = loader->base.outline.points + old_points; + + + for ( i = 0; i < num_points; i++, vec++ ) + { + vec->x += subglyph->x_delta; + vec->y += subglyph->y_delta; + } + } + + /* proceed to next sub-glyph */ + } + + FT_TRACE4(( "end compound glyph with %d elements\n", count )); + } + else + { + FT_TRACE4(( "simple glyph (offset %lu)\n", offset )); + + /* load a simple glyph */ + error = pfr_glyph_load_simple( glyph, p, limit ); + + FT_FRAME_EXIT(); + } + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + pfr_glyph_load( PFR_Glyph glyph, + FT_Stream stream, + FT_ULong gps_offset, + FT_ULong offset, + FT_ULong size ) + { + /* initialize glyph loader */ + FT_GlyphLoader_Rewind( glyph->loader ); + + glyph->num_subs = 0; + + /* load the glyph, recursively when needed */ + return pfr_glyph_load_rec( glyph, stream, gps_offset, offset, size ); + } + + +/* END */ diff --git a/src/pfr/pfrgload.h b/src/pfr/pfrgload.h new file mode 100644 index 0000000..7cc7a87 --- /dev/null +++ b/src/pfr/pfrgload.h @@ -0,0 +1,49 @@ +/***************************************************************************/ +/* */ +/* pfrgload.h */ +/* */ +/* FreeType PFR glyph loader (specification). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFRGLOAD_H__ +#define __PFRGLOAD_H__ + +#include "pfrtypes.h" + +FT_BEGIN_HEADER + + + FT_LOCAL( void ) + pfr_glyph_init( PFR_Glyph glyph, + FT_GlyphLoader loader ); + + FT_LOCAL( void ) + pfr_glyph_done( PFR_Glyph glyph ); + + + FT_LOCAL( FT_Error ) + pfr_glyph_load( PFR_Glyph glyph, + FT_Stream stream, + FT_ULong gps_offset, + FT_ULong offset, + FT_ULong size ); + + +FT_END_HEADER + + +#endif /* __PFRGLOAD_H__ */ + + +/* END */ diff --git a/src/pfr/pfrload.c b/src/pfr/pfrload.c new file mode 100644 index 0000000..325322e --- /dev/null +++ b/src/pfr/pfrload.c @@ -0,0 +1,941 @@ +/***************************************************************************/ +/* */ +/* pfrload.c */ +/* */ +/* FreeType PFR loader (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005, 2007, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "pfrload.h" +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H + +#include "pfrerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pfr + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** EXTRA ITEMS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + pfr_extra_items_skip( FT_Byte* *pp, + FT_Byte* limit ) + { + return pfr_extra_items_parse( pp, limit, NULL, NULL ); + } + + + FT_LOCAL_DEF( FT_Error ) + pfr_extra_items_parse( FT_Byte* *pp, + FT_Byte* limit, + PFR_ExtraItem item_list, + FT_Pointer item_data ) + { + FT_Error error = PFR_Err_Ok; + FT_Byte* p = *pp; + FT_UInt num_items, item_type, item_size; + + + PFR_CHECK( 1 ); + num_items = PFR_NEXT_BYTE( p ); + + for ( ; num_items > 0; num_items-- ) + { + PFR_CHECK( 2 ); + item_size = PFR_NEXT_BYTE( p ); + item_type = PFR_NEXT_BYTE( p ); + + PFR_CHECK( item_size ); + + if ( item_list ) + { + PFR_ExtraItem extra = item_list; + + + for ( extra = item_list; extra->parser != NULL; extra++ ) + { + if ( extra->type == item_type ) + { + error = extra->parser( p, p + item_size, item_data ); + if ( error ) goto Exit; + + break; + } + } + } + + p += item_size; + } + + Exit: + *pp = p; + return error; + + Too_Short: + FT_ERROR(( "pfr_extra_items_parse: invalid extra items table\n" )); + error = PFR_Err_Invalid_Table; + goto Exit; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PFR HEADER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static const FT_Frame_Field pfr_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE PFR_HeaderRec + + FT_FRAME_START( 58 ), + FT_FRAME_ULONG ( signature ), + FT_FRAME_USHORT( version ), + FT_FRAME_USHORT( signature2 ), + FT_FRAME_USHORT( header_size ), + + FT_FRAME_USHORT( log_dir_size ), + FT_FRAME_USHORT( log_dir_offset ), + + FT_FRAME_USHORT( log_font_max_size ), + FT_FRAME_UOFF3 ( log_font_section_size ), + FT_FRAME_UOFF3 ( log_font_section_offset ), + + FT_FRAME_USHORT( phy_font_max_size ), + FT_FRAME_UOFF3 ( phy_font_section_size ), + FT_FRAME_UOFF3 ( phy_font_section_offset ), + + FT_FRAME_USHORT( gps_max_size ), + FT_FRAME_UOFF3 ( gps_section_size ), + FT_FRAME_UOFF3 ( gps_section_offset ), + + FT_FRAME_BYTE ( max_blue_values ), + FT_FRAME_BYTE ( max_x_orus ), + FT_FRAME_BYTE ( max_y_orus ), + + FT_FRAME_BYTE ( phy_font_max_size_high ), + FT_FRAME_BYTE ( color_flags ), + + FT_FRAME_UOFF3 ( bct_max_size ), + FT_FRAME_UOFF3 ( bct_set_max_size ), + FT_FRAME_UOFF3 ( phy_bct_set_max_size ), + + FT_FRAME_USHORT( num_phy_fonts ), + FT_FRAME_BYTE ( max_vert_stem_snap ), + FT_FRAME_BYTE ( max_horz_stem_snap ), + FT_FRAME_USHORT( max_chars ), + FT_FRAME_END + }; + + + FT_LOCAL_DEF( FT_Error ) + pfr_header_load( PFR_Header header, + FT_Stream stream ) + { + FT_Error error; + + + /* read header directly */ + if ( !FT_STREAM_SEEK( 0 ) && + !FT_STREAM_READ_FIELDS( pfr_header_fields, header ) ) + { + /* make a few adjustments to the header */ + header->phy_font_max_size += + (FT_UInt32)header->phy_font_max_size_high << 16; + } + + return error; + } + + + FT_LOCAL_DEF( FT_Bool ) + pfr_header_check( PFR_Header header ) + { + FT_Bool result = 1; + + + /* check signature and header size */ + if ( header->signature != 0x50465230L || /* "PFR0" */ + header->version > 4 || + header->header_size < 58 || + header->signature2 != 0x0d0a ) /* CR/LF */ + { + result = 0; + } + return result; + } + + + /***********************************************************************/ + /***********************************************************************/ + /***** *****/ + /***** PFR LOGICAL FONTS *****/ + /***** *****/ + /***********************************************************************/ + /***********************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + pfr_log_font_count( FT_Stream stream, + FT_UInt32 section_offset, + FT_UInt *acount ) + { + FT_Error error; + FT_UInt count; + FT_UInt result = 0; + + + if ( FT_STREAM_SEEK( section_offset ) || FT_READ_USHORT( count ) ) + goto Exit; + + result = count; + + Exit: + *acount = result; + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + pfr_log_font_load( PFR_LogFont log_font, + FT_Stream stream, + FT_UInt idx, + FT_UInt32 section_offset, + FT_Bool size_increment ) + { + FT_UInt num_log_fonts; + FT_UInt flags; + FT_UInt32 offset; + FT_UInt32 size; + FT_Error error; + + + if ( FT_STREAM_SEEK( section_offset ) || + FT_READ_USHORT( num_log_fonts ) ) + goto Exit; + + if ( idx >= num_log_fonts ) + return PFR_Err_Invalid_Argument; + + if ( FT_STREAM_SKIP( idx * 5 ) || + FT_READ_USHORT( size ) || + FT_READ_UOFF3 ( offset ) ) + goto Exit; + + /* save logical font size and offset */ + log_font->size = size; + log_font->offset = offset; + + /* now, check the rest of the table before loading it */ + { + FT_Byte* p; + FT_Byte* limit; + FT_UInt local; + + + if ( FT_STREAM_SEEK( offset ) || FT_FRAME_ENTER( size ) ) + goto Exit; + + p = stream->cursor; + limit = p + size; + + PFR_CHECK(13); + + log_font->matrix[0] = PFR_NEXT_LONG( p ); + log_font->matrix[1] = PFR_NEXT_LONG( p ); + log_font->matrix[2] = PFR_NEXT_LONG( p ); + log_font->matrix[3] = PFR_NEXT_LONG( p ); + + flags = PFR_NEXT_BYTE( p ); + + local = 0; + if ( flags & PFR_LOG_STROKE ) + { + local++; + if ( flags & PFR_LOG_2BYTE_STROKE ) + local++; + + if ( (flags & PFR_LINE_JOIN_MASK) == PFR_LINE_JOIN_MITER ) + local += 3; + } + if ( flags & PFR_LOG_BOLD ) + { + local++; + if ( flags & PFR_LOG_2BYTE_BOLD ) + local++; + } + + PFR_CHECK( local ); + + if ( flags & PFR_LOG_STROKE ) + { + log_font->stroke_thickness = ( flags & PFR_LOG_2BYTE_STROKE ) + ? PFR_NEXT_SHORT( p ) + : PFR_NEXT_BYTE( p ); + + if ( ( flags & PFR_LINE_JOIN_MASK ) == PFR_LINE_JOIN_MITER ) + log_font->miter_limit = PFR_NEXT_LONG( p ); + } + + if ( flags & PFR_LOG_BOLD ) + { + log_font->bold_thickness = ( flags & PFR_LOG_2BYTE_BOLD ) + ? PFR_NEXT_SHORT( p ) + : PFR_NEXT_BYTE( p ); + } + + if ( flags & PFR_LOG_EXTRA_ITEMS ) + { + error = pfr_extra_items_skip( &p, limit ); + if (error) goto Fail; + } + + PFR_CHECK(5); + log_font->phys_size = PFR_NEXT_USHORT( p ); + log_font->phys_offset = PFR_NEXT_ULONG( p ); + if ( size_increment ) + { + PFR_CHECK( 1 ); + log_font->phys_size += (FT_UInt32)PFR_NEXT_BYTE( p ) << 16; + } + } + + Fail: + FT_FRAME_EXIT(); + + Exit: + return error; + + Too_Short: + FT_ERROR(( "pfr_log_font_load: invalid logical font table\n" )); + error = PFR_Err_Invalid_Table; + goto Fail; + } + + + /***********************************************************************/ + /***********************************************************************/ + /***** *****/ + /***** PFR PHYSICAL FONTS *****/ + /***** *****/ + /***********************************************************************/ + /***********************************************************************/ + + + /* load bitmap strikes lists */ + FT_CALLBACK_DEF( FT_Error ) + pfr_extra_item_load_bitmap_info( FT_Byte* p, + FT_Byte* limit, + PFR_PhyFont phy_font ) + { + FT_Memory memory = phy_font->memory; + PFR_Strike strike; + FT_UInt flags0; + FT_UInt n, count, size1; + FT_Error error = PFR_Err_Ok; + + + PFR_CHECK( 5 ); + + p += 3; /* skip bctSize */ + flags0 = PFR_NEXT_BYTE( p ); + count = PFR_NEXT_BYTE( p ); + + /* re-allocate when needed */ + if ( phy_font->num_strikes + count > phy_font->max_strikes ) + { + FT_UInt new_max = FT_PAD_CEIL( phy_font->num_strikes + count, 4 ); + + + if ( FT_RENEW_ARRAY( phy_font->strikes, + phy_font->num_strikes, + new_max ) ) + goto Exit; + + phy_font->max_strikes = new_max; + } + + size1 = 1 + 1 + 1 + 2 + 2 + 1; + if ( flags0 & PFR_STRIKE_2BYTE_XPPM ) + size1++; + + if ( flags0 & PFR_STRIKE_2BYTE_YPPM ) + size1++; + + if ( flags0 & PFR_STRIKE_3BYTE_SIZE ) + size1++; + + if ( flags0 & PFR_STRIKE_3BYTE_OFFSET ) + size1++; + + if ( flags0 & PFR_STRIKE_2BYTE_COUNT ) + size1++; + + strike = phy_font->strikes + phy_font->num_strikes; + + PFR_CHECK( count * size1 ); + + for ( n = 0; n < count; n++, strike++ ) + { + strike->x_ppm = ( flags0 & PFR_STRIKE_2BYTE_XPPM ) + ? PFR_NEXT_USHORT( p ) + : PFR_NEXT_BYTE( p ); + + strike->y_ppm = ( flags0 & PFR_STRIKE_2BYTE_YPPM ) + ? PFR_NEXT_USHORT( p ) + : PFR_NEXT_BYTE( p ); + + strike->flags = PFR_NEXT_BYTE( p ); + + strike->bct_size = ( flags0 & PFR_STRIKE_3BYTE_SIZE ) + ? PFR_NEXT_ULONG( p ) + : PFR_NEXT_USHORT( p ); + + strike->bct_offset = ( flags0 & PFR_STRIKE_3BYTE_OFFSET ) + ? PFR_NEXT_ULONG( p ) + : PFR_NEXT_USHORT( p ); + + strike->num_bitmaps = ( flags0 & PFR_STRIKE_2BYTE_COUNT ) + ? PFR_NEXT_USHORT( p ) + : PFR_NEXT_BYTE( p ); + } + + phy_font->num_strikes += count; + + Exit: + return error; + + Too_Short: + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_extra_item_load_bitmap_info:" + " invalid bitmap info table\n" )); + goto Exit; + } + + + /* Load font ID. This is a so-called "unique" name that is rather + * long and descriptive (like "Tiresias ScreenFont v7.51"). + * + * Note that a PFR font's family name is contained in an *undocumented* + * string of the "auxiliary data" portion of a physical font record. This + * may also contain the "real" style name! + * + * If no family name is present, the font ID is used instead for the + * family. + */ + FT_CALLBACK_DEF( FT_Error ) + pfr_extra_item_load_font_id( FT_Byte* p, + FT_Byte* limit, + PFR_PhyFont phy_font ) + { + FT_Error error = PFR_Err_Ok; + FT_Memory memory = phy_font->memory; + FT_PtrDist len = limit - p; + + + if ( phy_font->font_id != NULL ) + goto Exit; + + if ( FT_ALLOC( phy_font->font_id, len + 1 ) ) + goto Exit; + + /* copy font ID name, and terminate it for safety */ + FT_MEM_COPY( phy_font->font_id, p, len ); + phy_font->font_id[len] = 0; + + Exit: + return error; + } + + + /* load stem snap tables */ + FT_CALLBACK_DEF( FT_Error ) + pfr_extra_item_load_stem_snaps( FT_Byte* p, + FT_Byte* limit, + PFR_PhyFont phy_font ) + { + FT_UInt count, num_vert, num_horz; + FT_Int* snaps = NULL; + FT_Error error = PFR_Err_Ok; + FT_Memory memory = phy_font->memory; + + + if ( phy_font->vertical.stem_snaps != NULL ) + goto Exit; + + PFR_CHECK( 1 ); + count = PFR_NEXT_BYTE( p ); + + num_vert = count & 15; + num_horz = count >> 4; + count = num_vert + num_horz; + + PFR_CHECK( count * 2 ); + + if ( FT_NEW_ARRAY( snaps, count ) ) + goto Exit; + + phy_font->vertical.stem_snaps = snaps; + phy_font->horizontal.stem_snaps = snaps + num_vert; + + for ( ; count > 0; count--, snaps++ ) + *snaps = FT_NEXT_SHORT( p ); + + Exit: + return error; + + Too_Short: + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_exta_item_load_stem_snaps:" + " invalid stem snaps table\n" )); + goto Exit; + } + + + + /* load kerning pair data */ + FT_CALLBACK_DEF( FT_Error ) + pfr_extra_item_load_kerning_pairs( FT_Byte* p, + FT_Byte* limit, + PFR_PhyFont phy_font ) + { + PFR_KernItem item = NULL; + FT_Error error = PFR_Err_Ok; + FT_Memory memory = phy_font->memory; + + + FT_TRACE2(( "pfr_extra_item_load_kerning_pairs()\n" )); + + if ( FT_NEW( item ) ) + goto Exit; + + PFR_CHECK( 4 ); + + item->pair_count = PFR_NEXT_BYTE( p ); + item->base_adj = PFR_NEXT_SHORT( p ); + item->flags = PFR_NEXT_BYTE( p ); + item->offset = phy_font->offset + ( p - phy_font->cursor ); + +#ifndef PFR_CONFIG_NO_CHECKS + item->pair_size = 3; + + if ( item->flags & PFR_KERN_2BYTE_CHAR ) + item->pair_size += 2; + + if ( item->flags & PFR_KERN_2BYTE_ADJ ) + item->pair_size += 1; + + PFR_CHECK( item->pair_count * item->pair_size ); +#endif + + /* load first and last pairs into the item to speed up */ + /* lookup later... */ + if ( item->pair_count > 0 ) + { + FT_UInt char1, char2; + FT_Byte* q; + + + if ( item->flags & PFR_KERN_2BYTE_CHAR ) + { + q = p; + char1 = PFR_NEXT_USHORT( q ); + char2 = PFR_NEXT_USHORT( q ); + + item->pair1 = PFR_KERN_INDEX( char1, char2 ); + + q = p + item->pair_size * ( item->pair_count - 1 ); + char1 = PFR_NEXT_USHORT( q ); + char2 = PFR_NEXT_USHORT( q ); + + item->pair2 = PFR_KERN_INDEX( char1, char2 ); + } + else + { + q = p; + char1 = PFR_NEXT_BYTE( q ); + char2 = PFR_NEXT_BYTE( q ); + + item->pair1 = PFR_KERN_INDEX( char1, char2 ); + + q = p + item->pair_size * ( item->pair_count - 1 ); + char1 = PFR_NEXT_BYTE( q ); + char2 = PFR_NEXT_BYTE( q ); + + item->pair2 = PFR_KERN_INDEX( char1, char2 ); + } + + /* add new item to the current list */ + item->next = NULL; + *phy_font->kern_items_tail = item; + phy_font->kern_items_tail = &item->next; + phy_font->num_kern_pairs += item->pair_count; + } + else + { + /* empty item! */ + FT_FREE( item ); + } + + Exit: + return error; + + Too_Short: + FT_FREE( item ); + + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_extra_item_load_kerning_pairs:" + " invalid kerning pairs table\n" )); + goto Exit; + } + + + + static const PFR_ExtraItemRec pfr_phy_font_extra_items[] = + { + { 1, (PFR_ExtraItem_ParseFunc)pfr_extra_item_load_bitmap_info }, + { 2, (PFR_ExtraItem_ParseFunc)pfr_extra_item_load_font_id }, + { 3, (PFR_ExtraItem_ParseFunc)pfr_extra_item_load_stem_snaps }, + { 4, (PFR_ExtraItem_ParseFunc)pfr_extra_item_load_kerning_pairs }, + { 0, NULL } + }; + + + /* Loads a name from the auxiliary data. Since this extracts undocumented + * strings from the font file, we need to be careful here. + */ + static FT_Error + pfr_aux_name_load( FT_Byte* p, + FT_UInt len, + FT_Memory memory, + FT_String* *astring ) + { + FT_Error error = PFR_Err_Ok; + FT_String* result = NULL; + FT_UInt n, ok; + + + if ( len > 0 && p[len - 1] == 0 ) + len--; + + /* check that each character is ASCII for making sure not to + load garbage + */ + ok = ( len > 0 ); + for ( n = 0; n < len; n++ ) + if ( p[n] < 32 || p[n] > 127 ) + { + ok = 0; + break; + } + + if ( ok ) + { + if ( FT_ALLOC( result, len + 1 ) ) + goto Exit; + + FT_MEM_COPY( result, p, len ); + result[len] = 0; + } + Exit: + *astring = result; + return error; + } + + + FT_LOCAL_DEF( void ) + pfr_phy_font_done( PFR_PhyFont phy_font, + FT_Memory memory ) + { + FT_FREE( phy_font->font_id ); + FT_FREE( phy_font->family_name ); + FT_FREE( phy_font->style_name ); + + FT_FREE( phy_font->vertical.stem_snaps ); + phy_font->vertical.num_stem_snaps = 0; + + phy_font->horizontal.stem_snaps = NULL; + phy_font->horizontal.num_stem_snaps = 0; + + FT_FREE( phy_font->strikes ); + phy_font->num_strikes = 0; + phy_font->max_strikes = 0; + + FT_FREE( phy_font->chars ); + phy_font->num_chars = 0; + phy_font->chars_offset = 0; + + FT_FREE( phy_font->blue_values ); + phy_font->num_blue_values = 0; + + { + PFR_KernItem item, next; + + + item = phy_font->kern_items; + while ( item ) + { + next = item->next; + FT_FREE( item ); + item = next; + } + phy_font->kern_items = NULL; + phy_font->kern_items_tail = NULL; + } + + phy_font->num_kern_pairs = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + pfr_phy_font_load( PFR_PhyFont phy_font, + FT_Stream stream, + FT_UInt32 offset, + FT_UInt32 size ) + { + FT_Error error; + FT_Memory memory = stream->memory; + FT_UInt flags; + FT_ULong num_aux; + FT_Byte* p; + FT_Byte* limit; + + + phy_font->memory = memory; + phy_font->offset = offset; + + phy_font->kern_items = NULL; + phy_font->kern_items_tail = &phy_font->kern_items; + + if ( FT_STREAM_SEEK( offset ) || FT_FRAME_ENTER( size ) ) + goto Exit; + + phy_font->cursor = stream->cursor; + + p = stream->cursor; + limit = p + size; + + PFR_CHECK( 15 ); + phy_font->font_ref_number = PFR_NEXT_USHORT( p ); + phy_font->outline_resolution = PFR_NEXT_USHORT( p ); + phy_font->metrics_resolution = PFR_NEXT_USHORT( p ); + phy_font->bbox.xMin = PFR_NEXT_SHORT( p ); + phy_font->bbox.yMin = PFR_NEXT_SHORT( p ); + phy_font->bbox.xMax = PFR_NEXT_SHORT( p ); + phy_font->bbox.yMax = PFR_NEXT_SHORT( p ); + phy_font->flags = flags = PFR_NEXT_BYTE( p ); + + /* get the standard advance for non-proportional fonts */ + if ( !(flags & PFR_PHY_PROPORTIONAL) ) + { + PFR_CHECK( 2 ); + phy_font->standard_advance = PFR_NEXT_SHORT( p ); + } + + /* load the extra items when present */ + if ( flags & PFR_PHY_EXTRA_ITEMS ) + { + error = pfr_extra_items_parse( &p, limit, + pfr_phy_font_extra_items, phy_font ); + + if ( error ) + goto Fail; + } + + /* In certain fonts, the auxiliary bytes contain interesting */ + /* information. These are not in the specification but can be */ + /* guessed by looking at the content of a few PFR0 fonts. */ + PFR_CHECK( 3 ); + num_aux = PFR_NEXT_ULONG( p ); + + if ( num_aux > 0 ) + { + FT_Byte* q = p; + FT_Byte* q2; + + + PFR_CHECK( num_aux ); + p += num_aux; + + while ( num_aux > 0 ) + { + FT_UInt length, type; + + + if ( q + 4 > p ) + break; + + length = PFR_NEXT_USHORT( q ); + if ( length < 4 || length > num_aux ) + break; + + q2 = q + length - 2; + type = PFR_NEXT_USHORT( q ); + + switch ( type ) + { + case 1: + /* this seems to correspond to the font's family name, + * padded to 16-bits with one zero when necessary + */ + error = pfr_aux_name_load( q, length - 4U, memory, + &phy_font->family_name ); + if ( error ) + goto Exit; + break; + + case 2: + if ( q + 32 > q2 ) + break; + + q += 10; + phy_font->ascent = PFR_NEXT_SHORT( q ); + phy_font->descent = PFR_NEXT_SHORT( q ); + phy_font->leading = PFR_NEXT_SHORT( q ); + q += 16; + break; + + case 3: + /* this seems to correspond to the font's style name, + * padded to 16-bits with one zero when necessary + */ + error = pfr_aux_name_load( q, length - 4U, memory, + &phy_font->style_name ); + if ( error ) + goto Exit; + break; + + default: + ; + } + + q = q2; + num_aux -= length; + } + } + + /* read the blue values */ + { + FT_UInt n, count; + + + PFR_CHECK( 1 ); + phy_font->num_blue_values = count = PFR_NEXT_BYTE( p ); + + PFR_CHECK( count * 2 ); + + if ( FT_NEW_ARRAY( phy_font->blue_values, count ) ) + goto Fail; + + for ( n = 0; n < count; n++ ) + phy_font->blue_values[n] = PFR_NEXT_SHORT( p ); + } + + PFR_CHECK( 8 ); + phy_font->blue_fuzz = PFR_NEXT_BYTE( p ); + phy_font->blue_scale = PFR_NEXT_BYTE( p ); + + phy_font->vertical.standard = PFR_NEXT_USHORT( p ); + phy_font->horizontal.standard = PFR_NEXT_USHORT( p ); + + /* read the character descriptors */ + { + FT_UInt n, count, Size; + + + phy_font->num_chars = count = PFR_NEXT_USHORT( p ); + phy_font->chars_offset = offset + ( p - stream->cursor ); + + if ( FT_NEW_ARRAY( phy_font->chars, count ) ) + goto Fail; + + Size = 1 + 1 + 2; + if ( flags & PFR_PHY_2BYTE_CHARCODE ) + Size += 1; + + if ( flags & PFR_PHY_PROPORTIONAL ) + Size += 2; + + if ( flags & PFR_PHY_ASCII_CODE ) + Size += 1; + + if ( flags & PFR_PHY_2BYTE_GPS_SIZE ) + Size += 1; + + if ( flags & PFR_PHY_3BYTE_GPS_OFFSET ) + Size += 1; + + PFR_CHECK( count * Size ); + + for ( n = 0; n < count; n++ ) + { + PFR_Char cur = &phy_font->chars[n]; + + + cur->char_code = ( flags & PFR_PHY_2BYTE_CHARCODE ) + ? PFR_NEXT_USHORT( p ) + : PFR_NEXT_BYTE( p ); + + cur->advance = ( flags & PFR_PHY_PROPORTIONAL ) + ? PFR_NEXT_SHORT( p ) + : (FT_Int) phy_font->standard_advance; + +#if 0 + cur->ascii = ( flags & PFR_PHY_ASCII_CODE ) + ? PFR_NEXT_BYTE( p ) + : 0; +#else + if ( flags & PFR_PHY_ASCII_CODE ) + p += 1; +#endif + cur->gps_size = ( flags & PFR_PHY_2BYTE_GPS_SIZE ) + ? PFR_NEXT_USHORT( p ) + : PFR_NEXT_BYTE( p ); + + cur->gps_offset = ( flags & PFR_PHY_3BYTE_GPS_OFFSET ) + ? PFR_NEXT_ULONG( p ) + : PFR_NEXT_USHORT( p ); + } + } + + /* that's it! */ + + Fail: + FT_FRAME_EXIT(); + + /* save position of bitmap info */ + phy_font->bct_offset = FT_STREAM_POS(); + phy_font->cursor = NULL; + + Exit: + return error; + + Too_Short: + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_phy_font_load: invalid physical font table\n" )); + goto Fail; + } + + +/* END */ diff --git a/src/pfr/pfrload.h b/src/pfr/pfrload.h new file mode 100644 index 0000000..ed01071 --- /dev/null +++ b/src/pfr/pfrload.h @@ -0,0 +1,118 @@ +/***************************************************************************/ +/* */ +/* pfrload.h */ +/* */ +/* FreeType PFR loader (specification). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFRLOAD_H__ +#define __PFRLOAD_H__ + +#include "pfrobjs.h" +#include FT_INTERNAL_STREAM_H + + +FT_BEGIN_HEADER + +#ifdef PFR_CONFIG_NO_CHECKS +#define PFR_CHECK( x ) do { } while ( 0 ) +#else +#define PFR_CHECK( x ) do \ + { \ + if ( p + (x) > limit ) \ + goto Too_Short; \ + } while ( 0 ) +#endif + +#define PFR_NEXT_BYTE( p ) FT_NEXT_BYTE( p ) +#define PFR_NEXT_INT8( p ) FT_NEXT_CHAR( p ) +#define PFR_NEXT_SHORT( p ) FT_NEXT_SHORT( p ) +#define PFR_NEXT_USHORT( p ) FT_NEXT_USHORT( p ) +#define PFR_NEXT_LONG( p ) FT_NEXT_OFF3( p ) +#define PFR_NEXT_ULONG( p ) FT_NEXT_UOFF3( p ) + + + /* handling extra items */ + + typedef FT_Error + (*PFR_ExtraItem_ParseFunc)( FT_Byte* p, + FT_Byte* limit, + FT_Pointer data ); + + typedef struct PFR_ExtraItemRec_ + { + FT_UInt type; + PFR_ExtraItem_ParseFunc parser; + + } PFR_ExtraItemRec; + + typedef const struct PFR_ExtraItemRec_* PFR_ExtraItem; + + + FT_LOCAL( FT_Error ) + pfr_extra_items_skip( FT_Byte* *pp, + FT_Byte* limit ); + + FT_LOCAL( FT_Error ) + pfr_extra_items_parse( FT_Byte* *pp, + FT_Byte* limit, + PFR_ExtraItem item_list, + FT_Pointer item_data ); + + + /* load a PFR header */ + FT_LOCAL( FT_Error ) + pfr_header_load( PFR_Header header, + FT_Stream stream ); + + /* check a PFR header */ + FT_LOCAL( FT_Bool ) + pfr_header_check( PFR_Header header ); + + + /* return number of logical fonts in this file */ + FT_LOCAL( FT_Error ) + pfr_log_font_count( FT_Stream stream, + FT_UInt32 log_section_offset, + FT_UInt *acount ); + + /* load a pfr logical font entry */ + FT_LOCAL( FT_Error ) + pfr_log_font_load( PFR_LogFont log_font, + FT_Stream stream, + FT_UInt face_index, + FT_UInt32 section_offset, + FT_Bool size_increment ); + + + /* load a physical font entry */ + FT_LOCAL( FT_Error ) + pfr_phy_font_load( PFR_PhyFont phy_font, + FT_Stream stream, + FT_UInt32 offset, + FT_UInt32 size ); + + /* finalize a physical font */ + FT_LOCAL( void ) + pfr_phy_font_done( PFR_PhyFont phy_font, + FT_Memory memory ); + + /* */ + +FT_END_HEADER + +#endif /* __PFRLOAD_H__ */ + + +/* END */ diff --git a/src/pfr/pfrobjs.c b/src/pfr/pfrobjs.c new file mode 100644 index 0000000..c65cf29 --- /dev/null +++ b/src/pfr/pfrobjs.c @@ -0,0 +1,593 @@ +/***************************************************************************/ +/* */ +/* pfrobjs.c */ +/* */ +/* FreeType PFR object methods (body). */ +/* */ +/* Copyright 2002-2008, 2010-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "pfrobjs.h" +#include "pfrload.h" +#include "pfrgload.h" +#include "pfrcmap.h" +#include "pfrsbit.h" +#include FT_OUTLINE_H +#include FT_INTERNAL_DEBUG_H +#include FT_TRUETYPE_IDS_H + +#include "pfrerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pfr + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FACE OBJECT METHODS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + pfr_face_done( FT_Face pfrface ) /* PFR_Face */ + { + PFR_Face face = (PFR_Face)pfrface; + FT_Memory memory; + + + if ( !face ) + return; + + memory = pfrface->driver->root.memory; + + /* we don't want dangling pointers */ + pfrface->family_name = NULL; + pfrface->style_name = NULL; + + /* finalize the physical font record */ + pfr_phy_font_done( &face->phy_font, FT_FACE_MEMORY( face ) ); + + /* no need to finalize the logical font or the header */ + FT_FREE( pfrface->available_sizes ); + } + + + FT_LOCAL_DEF( FT_Error ) + pfr_face_init( FT_Stream stream, + FT_Face pfrface, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + PFR_Face face = (PFR_Face)pfrface; + FT_Error error; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + + + FT_TRACE2(( "PFR driver\n" )); + + /* load the header and check it */ + error = pfr_header_load( &face->header, stream ); + if ( error ) + goto Exit; + + if ( !pfr_header_check( &face->header ) ) + { + FT_TRACE2(( " not a PFR font\n" )); + error = PFR_Err_Unknown_File_Format; + goto Exit; + } + + /* check face index */ + { + FT_UInt num_faces; + + + error = pfr_log_font_count( stream, + face->header.log_dir_offset, + &num_faces ); + if ( error ) + goto Exit; + + pfrface->num_faces = num_faces; + } + + if ( face_index < 0 ) + goto Exit; + + if ( face_index >= pfrface->num_faces ) + { + FT_ERROR(( "pfr_face_init: invalid face index\n" )); + error = PFR_Err_Invalid_Argument; + goto Exit; + } + + /* load the face */ + error = pfr_log_font_load( + &face->log_font, stream, face_index, + face->header.log_dir_offset, + FT_BOOL( face->header.phy_font_max_size_high != 0 ) ); + if ( error ) + goto Exit; + + /* now load the physical font descriptor */ + error = pfr_phy_font_load( &face->phy_font, stream, + face->log_font.phys_offset, + face->log_font.phys_size ); + if ( error ) + goto Exit; + + /* now set up all root face fields */ + { + PFR_PhyFont phy_font = &face->phy_font; + + + pfrface->face_index = face_index; + pfrface->num_glyphs = phy_font->num_chars + 1; + pfrface->face_flags = FT_FACE_FLAG_SCALABLE; + + /* if all characters point to the same gps_offset 0, we */ + /* assume that the font only contains bitmaps */ + { + FT_UInt nn; + + + for ( nn = 0; nn < phy_font->num_chars; nn++ ) + if ( phy_font->chars[nn].gps_offset != 0 ) + break; + + if ( nn == phy_font->num_chars ) + { + if ( phy_font->num_strikes > 0 ) + pfrface->face_flags = 0; /* not scalable */ + else + { + FT_ERROR(( "pfr_face_init: font doesn't contain glyphs\n" )); + error = PFR_Err_Invalid_File_Format; + goto Exit; + } + } + } + + if ( (phy_font->flags & PFR_PHY_PROPORTIONAL) == 0 ) + pfrface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + if ( phy_font->flags & PFR_PHY_VERTICAL ) + pfrface->face_flags |= FT_FACE_FLAG_VERTICAL; + else + pfrface->face_flags |= FT_FACE_FLAG_HORIZONTAL; + + if ( phy_font->num_strikes > 0 ) + pfrface->face_flags |= FT_FACE_FLAG_FIXED_SIZES; + + if ( phy_font->num_kern_pairs > 0 ) + pfrface->face_flags |= FT_FACE_FLAG_KERNING; + + /* If no family name was found in the "undocumented" auxiliary + * data, use the font ID instead. This sucks but is better than + * nothing. + */ + pfrface->family_name = phy_font->family_name; + if ( pfrface->family_name == NULL ) + pfrface->family_name = phy_font->font_id; + + /* note that the style name can be NULL in certain PFR fonts, + * probably meaning "Regular" + */ + pfrface->style_name = phy_font->style_name; + + pfrface->num_fixed_sizes = 0; + pfrface->available_sizes = 0; + + pfrface->bbox = phy_font->bbox; + pfrface->units_per_EM = (FT_UShort)phy_font->outline_resolution; + pfrface->ascender = (FT_Short) phy_font->bbox.yMax; + pfrface->descender = (FT_Short) phy_font->bbox.yMin; + + pfrface->height = (FT_Short)( ( pfrface->units_per_EM * 12 ) / 10 ); + if ( pfrface->height < pfrface->ascender - pfrface->descender ) + pfrface->height = (FT_Short)(pfrface->ascender - pfrface->descender); + + if ( phy_font->num_strikes > 0 ) + { + FT_UInt n, count = phy_font->num_strikes; + FT_Bitmap_Size* size; + PFR_Strike strike; + FT_Memory memory = pfrface->stream->memory; + + + if ( FT_NEW_ARRAY( pfrface->available_sizes, count ) ) + goto Exit; + + size = pfrface->available_sizes; + strike = phy_font->strikes; + for ( n = 0; n < count; n++, size++, strike++ ) + { + size->height = (FT_UShort)strike->y_ppm; + size->width = (FT_UShort)strike->x_ppm; + size->size = strike->y_ppm << 6; + size->x_ppem = strike->x_ppm << 6; + size->y_ppem = strike->y_ppm << 6; + } + pfrface->num_fixed_sizes = count; + } + + /* now compute maximum advance width */ + if ( ( phy_font->flags & PFR_PHY_PROPORTIONAL ) == 0 ) + pfrface->max_advance_width = (FT_Short)phy_font->standard_advance; + else + { + FT_Int max = 0; + FT_UInt count = phy_font->num_chars; + PFR_Char gchar = phy_font->chars; + + + for ( ; count > 0; count--, gchar++ ) + { + if ( max < gchar->advance ) + max = gchar->advance; + } + + pfrface->max_advance_width = (FT_Short)max; + } + + pfrface->max_advance_height = pfrface->height; + + pfrface->underline_position = (FT_Short)( -pfrface->units_per_EM / 10 ); + pfrface->underline_thickness = (FT_Short)( pfrface->units_per_EM / 30 ); + + /* create charmap */ + { + FT_CharMapRec charmap; + + + charmap.face = pfrface; + charmap.platform_id = TT_PLATFORM_MICROSOFT; + charmap.encoding_id = TT_MS_ID_UNICODE_CS; + charmap.encoding = FT_ENCODING_UNICODE; + + error = FT_CMap_New( &pfr_cmap_class_rec, NULL, &charmap, NULL ); + +#if 0 + /* Select default charmap */ + if ( pfrface->num_charmaps ) + pfrface->charmap = pfrface->charmaps[0]; +#endif + } + + /* check whether we've loaded any kerning pairs */ + if ( phy_font->num_kern_pairs ) + pfrface->face_flags |= FT_FACE_FLAG_KERNING; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** SLOT OBJECT METHOD *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( FT_Error ) + pfr_slot_init( FT_GlyphSlot pfrslot ) /* PFR_Slot */ + { + PFR_Slot slot = (PFR_Slot)pfrslot; + FT_GlyphLoader loader = pfrslot->internal->loader; + + + pfr_glyph_init( &slot->glyph, loader ); + + return 0; + } + + + FT_LOCAL_DEF( void ) + pfr_slot_done( FT_GlyphSlot pfrslot ) /* PFR_Slot */ + { + PFR_Slot slot = (PFR_Slot)pfrslot; + + + pfr_glyph_done( &slot->glyph ); + } + + + FT_LOCAL_DEF( FT_Error ) + pfr_slot_load( FT_GlyphSlot pfrslot, /* PFR_Slot */ + FT_Size pfrsize, /* PFR_Size */ + FT_UInt gindex, + FT_Int32 load_flags ) + { + PFR_Slot slot = (PFR_Slot)pfrslot; + PFR_Size size = (PFR_Size)pfrsize; + FT_Error error; + PFR_Face face = (PFR_Face)pfrslot->face; + PFR_Char gchar; + FT_Outline* outline = &pfrslot->outline; + FT_ULong gps_offset; + + + if ( gindex > 0 ) + gindex--; + + if ( !face || gindex >= face->phy_font.num_chars ) + { + error = PFR_Err_Invalid_Argument; + goto Exit; + } + + /* try to load an embedded bitmap */ + if ( ( load_flags & ( FT_LOAD_NO_SCALE | FT_LOAD_NO_BITMAP ) ) == 0 ) + { + error = pfr_slot_load_bitmap( slot, size, gindex ); + if ( error == 0 ) + goto Exit; + } + + if ( load_flags & FT_LOAD_SBITS_ONLY ) + { + error = PFR_Err_Invalid_Argument; + goto Exit; + } + + gchar = face->phy_font.chars + gindex; + pfrslot->format = FT_GLYPH_FORMAT_OUTLINE; + outline->n_points = 0; + outline->n_contours = 0; + gps_offset = face->header.gps_section_offset; + + /* load the glyph outline (FT_LOAD_NO_RECURSE isn't supported) */ + error = pfr_glyph_load( &slot->glyph, face->root.stream, + gps_offset, gchar->gps_offset, gchar->gps_size ); + + if ( !error ) + { + FT_BBox cbox; + FT_Glyph_Metrics* metrics = &pfrslot->metrics; + FT_Pos advance; + FT_Int em_metrics, em_outline; + FT_Bool scaling; + + + scaling = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 ); + + /* copy outline data */ + *outline = slot->glyph.loader->base.outline; + + outline->flags &= ~FT_OUTLINE_OWNER; + outline->flags |= FT_OUTLINE_REVERSE_FILL; + + if ( size && pfrsize->metrics.y_ppem < 24 ) + outline->flags |= FT_OUTLINE_HIGH_PRECISION; + + /* compute the advance vector */ + metrics->horiAdvance = 0; + metrics->vertAdvance = 0; + + advance = gchar->advance; + em_metrics = face->phy_font.metrics_resolution; + em_outline = face->phy_font.outline_resolution; + + if ( em_metrics != em_outline ) + advance = FT_MulDiv( advance, em_outline, em_metrics ); + + if ( face->phy_font.flags & PFR_PHY_VERTICAL ) + metrics->vertAdvance = advance; + else + metrics->horiAdvance = advance; + + pfrslot->linearHoriAdvance = metrics->horiAdvance; + pfrslot->linearVertAdvance = metrics->vertAdvance; + + /* make-up vertical metrics(?) */ + metrics->vertBearingX = 0; + metrics->vertBearingY = 0; + +#if 0 /* some fonts seem to be broken here! */ + + /* Apply the font matrix, if any. */ + /* TODO: Test existing fonts with unusual matrix */ + /* whether we have to adjust Units per EM. */ + { + FT_Matrix font_matrix; + + + font_matrix.xx = face->log_font.matrix[0] << 8; + font_matrix.yx = face->log_font.matrix[1] << 8; + font_matrix.xy = face->log_font.matrix[2] << 8; + font_matrix.yy = face->log_font.matrix[3] << 8; + + FT_Outline_Transform( outline, &font_matrix ); + } +#endif + + /* scale when needed */ + if ( scaling ) + { + FT_Int n; + FT_Fixed x_scale = pfrsize->metrics.x_scale; + FT_Fixed y_scale = pfrsize->metrics.y_scale; + FT_Vector* vec = outline->points; + + + /* scale outline points */ + for ( n = 0; n < outline->n_points; n++, vec++ ) + { + vec->x = FT_MulFix( vec->x, x_scale ); + vec->y = FT_MulFix( vec->y, y_scale ); + } + + /* scale the advance */ + metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale ); + metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale ); + } + + /* compute the rest of the metrics */ + FT_Outline_Get_CBox( outline, &cbox ); + + metrics->width = cbox.xMax - cbox.xMin; + metrics->height = cbox.yMax - cbox.yMin; + metrics->horiBearingX = cbox.xMin; + metrics->horiBearingY = cbox.yMax - metrics->height; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** KERNING METHOD *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( FT_Error ) + pfr_face_get_kerning( FT_Face pfrface, /* PFR_Face */ + FT_UInt glyph1, + FT_UInt glyph2, + FT_Vector* kerning ) + { + PFR_Face face = (PFR_Face)pfrface; + FT_Error error = PFR_Err_Ok; + PFR_PhyFont phy_font = &face->phy_font; + FT_UInt32 code1, code2, pair; + + + kerning->x = 0; + kerning->y = 0; + + if ( glyph1 > 0 ) + glyph1--; + + if ( glyph2 > 0 ) + glyph2--; + + /* convert glyph indices to character codes */ + if ( glyph1 > phy_font->num_chars || + glyph2 > phy_font->num_chars ) + goto Exit; + + code1 = phy_font->chars[glyph1].char_code; + code2 = phy_font->chars[glyph2].char_code; + pair = PFR_KERN_INDEX( code1, code2 ); + + /* now search the list of kerning items */ + { + PFR_KernItem item = phy_font->kern_items; + FT_Stream stream = pfrface->stream; + + + for ( ; item; item = item->next ) + { + if ( pair >= item->pair1 && pair <= item->pair2 ) + goto FoundPair; + } + goto Exit; + + FoundPair: /* we found an item, now parse it and find the value if any */ + if ( FT_STREAM_SEEK( item->offset ) || + FT_FRAME_ENTER( item->pair_count * item->pair_size ) ) + goto Exit; + + { + FT_UInt count = item->pair_count; + FT_UInt size = item->pair_size; + FT_UInt power = (FT_UInt)ft_highpow2( (FT_UInt32)count ); + FT_UInt probe = power * size; + FT_UInt extra = count - power; + FT_Byte* base = stream->cursor; + FT_Bool twobytes = FT_BOOL( item->flags & 1 ); + FT_Bool twobyte_adj = FT_BOOL( item->flags & 2 ); + FT_Byte* p; + FT_UInt32 cpair; + + + if ( extra > 0 ) + { + p = base + extra * size; + + if ( twobytes ) + cpair = FT_NEXT_ULONG( p ); + else + cpair = PFR_NEXT_KPAIR( p ); + + if ( cpair == pair ) + goto Found; + + if ( cpair < pair ) + { + if ( twobyte_adj ) + p += 2; + else + p++; + base = p; + } + } + + while ( probe > size ) + { + probe >>= 1; + p = base + probe; + + if ( twobytes ) + cpair = FT_NEXT_ULONG( p ); + else + cpair = PFR_NEXT_KPAIR( p ); + + if ( cpair == pair ) + goto Found; + + if ( cpair < pair ) + base += probe; + } + + p = base; + + if ( twobytes ) + cpair = FT_NEXT_ULONG( p ); + else + cpair = PFR_NEXT_KPAIR( p ); + + if ( cpair == pair ) + { + FT_Int value; + + + Found: + if ( twobyte_adj ) + value = FT_PEEK_SHORT( p ); + else + value = p[0]; + + kerning->x = item->base_adj + value; + } + } + + FT_FRAME_EXIT(); + } + + Exit: + return error; + } + +/* END */ diff --git a/src/pfr/pfrobjs.h b/src/pfr/pfrobjs.h new file mode 100644 index 0000000..f6aa8b4 --- /dev/null +++ b/src/pfr/pfrobjs.h @@ -0,0 +1,96 @@ +/***************************************************************************/ +/* */ +/* pfrobjs.h */ +/* */ +/* FreeType PFR object methods (specification). */ +/* */ +/* Copyright 2002, 2003, 2004 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFROBJS_H__ +#define __PFROBJS_H__ + +#include "pfrtypes.h" + + +FT_BEGIN_HEADER + + typedef struct PFR_FaceRec_* PFR_Face; + + typedef struct PFR_SizeRec_* PFR_Size; + + typedef struct PFR_SlotRec_* PFR_Slot; + + + typedef struct PFR_FaceRec_ + { + FT_FaceRec root; + PFR_HeaderRec header; + PFR_LogFontRec log_font; + PFR_PhyFontRec phy_font; + + } PFR_FaceRec; + + + typedef struct PFR_SizeRec_ + { + FT_SizeRec root; + + } PFR_SizeRec; + + + typedef struct PFR_SlotRec_ + { + FT_GlyphSlotRec root; + PFR_GlyphRec glyph; + + } PFR_SlotRec; + + + FT_LOCAL( FT_Error ) + pfr_face_init( FT_Stream stream, + FT_Face face, /* PFR_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( void ) + pfr_face_done( FT_Face face ); /* PFR_Face */ + + + FT_LOCAL( FT_Error ) + pfr_face_get_kerning( FT_Face face, /* PFR_Face */ + FT_UInt glyph1, + FT_UInt glyph2, + FT_Vector* kerning ); + + + FT_LOCAL( FT_Error ) + pfr_slot_init( FT_GlyphSlot slot ); /* PFR_Slot */ + + FT_LOCAL( void ) + pfr_slot_done( FT_GlyphSlot slot ); /* PFR_Slot */ + + + FT_LOCAL( FT_Error ) + pfr_slot_load( FT_GlyphSlot slot, /* PFR_Slot */ + FT_Size size, /* PFR_Size */ + FT_UInt gindex, + FT_Int32 load_flags ); + + +FT_END_HEADER + +#endif /* __PFROBJS_H__ */ + + +/* END */ diff --git a/src/pfr/pfrsbit.c b/src/pfr/pfrsbit.c new file mode 100644 index 0000000..52bc2c8 --- /dev/null +++ b/src/pfr/pfrsbit.c @@ -0,0 +1,698 @@ +/***************************************************************************/ +/* */ +/* pfrsbit.c */ +/* */ +/* FreeType PFR bitmap loader (body). */ +/* */ +/* Copyright 2002, 2003, 2006, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "pfrsbit.h" +#include "pfrload.h" +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H + +#include "pfrerror.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pfr + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PFR BIT WRITER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct PFR_BitWriter_ + { + FT_Byte* line; /* current line start */ + FT_Int pitch; /* line size in bytes */ + FT_Int width; /* width in pixels/bits */ + FT_Int rows; /* number of remaining rows to scan */ + FT_Int total; /* total number of bits to draw */ + + } PFR_BitWriterRec, *PFR_BitWriter; + + + static void + pfr_bitwriter_init( PFR_BitWriter writer, + FT_Bitmap* target, + FT_Bool decreasing ) + { + writer->line = target->buffer; + writer->pitch = target->pitch; + writer->width = target->width; + writer->rows = target->rows; + writer->total = writer->width * writer->rows; + + if ( !decreasing ) + { + writer->line += writer->pitch * ( target->rows-1 ); + writer->pitch = -writer->pitch; + } + } + + + static void + pfr_bitwriter_decode_bytes( PFR_BitWriter writer, + FT_Byte* p, + FT_Byte* limit ) + { + FT_Int n, reload; + FT_Int left = writer->width; + FT_Byte* cur = writer->line; + FT_UInt mask = 0x80; + FT_UInt val = 0; + FT_UInt c = 0; + + + n = (FT_Int)( limit - p ) * 8; + if ( n > writer->total ) + n = writer->total; + + reload = n & 7; + + for ( ; n > 0; n-- ) + { + if ( ( n & 7 ) == reload ) + val = *p++; + + if ( val & 0x80 ) + c |= mask; + + val <<= 1; + mask >>= 1; + + if ( --left <= 0 ) + { + cur[0] = (FT_Byte)c; + left = writer->width; + mask = 0x80; + + writer->line += writer->pitch; + cur = writer->line; + c = 0; + } + else if ( mask == 0 ) + { + cur[0] = (FT_Byte)c; + mask = 0x80; + c = 0; + cur ++; + } + } + + if ( mask != 0x80 ) + cur[0] = (FT_Byte)c; + } + + + static void + pfr_bitwriter_decode_rle1( PFR_BitWriter writer, + FT_Byte* p, + FT_Byte* limit ) + { + FT_Int n, phase, count, counts[2], reload; + FT_Int left = writer->width; + FT_Byte* cur = writer->line; + FT_UInt mask = 0x80; + FT_UInt c = 0; + + + n = writer->total; + + phase = 1; + counts[0] = 0; + counts[1] = 0; + count = 0; + reload = 1; + + for ( ; n > 0; n-- ) + { + if ( reload ) + { + do + { + if ( phase ) + { + FT_Int v; + + + if ( p >= limit ) + break; + + v = *p++; + counts[0] = v >> 4; + counts[1] = v & 15; + phase = 0; + count = counts[0]; + } + else + { + phase = 1; + count = counts[1]; + } + + } while ( count == 0 ); + } + + if ( phase ) + c |= mask; + + mask >>= 1; + + if ( --left <= 0 ) + { + cur[0] = (FT_Byte) c; + left = writer->width; + mask = 0x80; + + writer->line += writer->pitch; + cur = writer->line; + c = 0; + } + else if ( mask == 0 ) + { + cur[0] = (FT_Byte)c; + mask = 0x80; + c = 0; + cur ++; + } + + reload = ( --count <= 0 ); + } + + if ( mask != 0x80 ) + cur[0] = (FT_Byte) c; + } + + + static void + pfr_bitwriter_decode_rle2( PFR_BitWriter writer, + FT_Byte* p, + FT_Byte* limit ) + { + FT_Int n, phase, count, reload; + FT_Int left = writer->width; + FT_Byte* cur = writer->line; + FT_UInt mask = 0x80; + FT_UInt c = 0; + + + n = writer->total; + + phase = 1; + count = 0; + reload = 1; + + for ( ; n > 0; n-- ) + { + if ( reload ) + { + do + { + if ( p >= limit ) + break; + + count = *p++; + phase = phase ^ 1; + + } while ( count == 0 ); + } + + if ( phase ) + c |= mask; + + mask >>= 1; + + if ( --left <= 0 ) + { + cur[0] = (FT_Byte) c; + c = 0; + mask = 0x80; + left = writer->width; + + writer->line += writer->pitch; + cur = writer->line; + } + else if ( mask == 0 ) + { + cur[0] = (FT_Byte)c; + c = 0; + mask = 0x80; + cur ++; + } + + reload = ( --count <= 0 ); + } + + if ( mask != 0x80 ) + cur[0] = (FT_Byte) c; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BITMAP DATA DECODING *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + pfr_lookup_bitmap_data( FT_Byte* base, + FT_Byte* limit, + FT_UInt count, + FT_UInt flags, + FT_UInt char_code, + FT_ULong* found_offset, + FT_ULong* found_size ) + { + FT_UInt left, right, char_len; + FT_Bool two = FT_BOOL( flags & 1 ); + FT_Byte* buff; + + + char_len = 4; + if ( two ) char_len += 1; + if ( flags & 2 ) char_len += 1; + if ( flags & 4 ) char_len += 1; + + left = 0; + right = count; + + while ( left < right ) + { + FT_UInt middle, code; + + + middle = ( left + right ) >> 1; + buff = base + middle * char_len; + + /* check that we are not outside of the table -- */ + /* this is possible with broken fonts... */ + if ( buff + char_len > limit ) + goto Fail; + + if ( two ) + code = PFR_NEXT_USHORT( buff ); + else + code = PFR_NEXT_BYTE( buff ); + + if ( code == char_code ) + goto Found_It; + + if ( code < char_code ) + left = middle; + else + right = middle; + } + + Fail: + /* Not found */ + *found_size = 0; + *found_offset = 0; + return; + + Found_It: + if ( flags & 2 ) + *found_size = PFR_NEXT_USHORT( buff ); + else + *found_size = PFR_NEXT_BYTE( buff ); + + if ( flags & 4 ) + *found_offset = PFR_NEXT_ULONG( buff ); + else + *found_offset = PFR_NEXT_USHORT( buff ); + } + + + /* load bitmap metrics. "*padvance" must be set to the default value */ + /* before calling this function... */ + /* */ + static FT_Error + pfr_load_bitmap_metrics( FT_Byte** pdata, + FT_Byte* limit, + FT_Long scaled_advance, + FT_Long *axpos, + FT_Long *aypos, + FT_UInt *axsize, + FT_UInt *aysize, + FT_Long *aadvance, + FT_UInt *aformat ) + { + FT_Error error = PFR_Err_Ok; + FT_Byte flags; + FT_Char b; + FT_Byte* p = *pdata; + FT_Long xpos, ypos, advance; + FT_UInt xsize, ysize; + + + PFR_CHECK( 1 ); + flags = PFR_NEXT_BYTE( p ); + + xpos = 0; + ypos = 0; + xsize = 0; + ysize = 0; + advance = 0; + + switch ( flags & 3 ) + { + case 0: + PFR_CHECK( 1 ); + b = PFR_NEXT_INT8( p ); + xpos = b >> 4; + ypos = ( (FT_Char)( b << 4 ) ) >> 4; + break; + + case 1: + PFR_CHECK( 2 ); + xpos = PFR_NEXT_INT8( p ); + ypos = PFR_NEXT_INT8( p ); + break; + + case 2: + PFR_CHECK( 4 ); + xpos = PFR_NEXT_SHORT( p ); + ypos = PFR_NEXT_SHORT( p ); + break; + + case 3: + PFR_CHECK( 6 ); + xpos = PFR_NEXT_LONG( p ); + ypos = PFR_NEXT_LONG( p ); + break; + + default: + ; + } + + flags >>= 2; + switch ( flags & 3 ) + { + case 0: + /* blank image */ + xsize = 0; + ysize = 0; + break; + + case 1: + PFR_CHECK( 1 ); + b = PFR_NEXT_BYTE( p ); + xsize = ( b >> 4 ) & 0xF; + ysize = b & 0xF; + break; + + case 2: + PFR_CHECK( 2 ); + xsize = PFR_NEXT_BYTE( p ); + ysize = PFR_NEXT_BYTE( p ); + break; + + case 3: + PFR_CHECK( 4 ); + xsize = PFR_NEXT_USHORT( p ); + ysize = PFR_NEXT_USHORT( p ); + break; + + default: + ; + } + + flags >>= 2; + switch ( flags & 3 ) + { + case 0: + advance = scaled_advance; + break; + + case 1: + PFR_CHECK( 1 ); + advance = PFR_NEXT_INT8( p ) << 8; + break; + + case 2: + PFR_CHECK( 2 ); + advance = PFR_NEXT_SHORT( p ); + break; + + case 3: + PFR_CHECK( 3 ); + advance = PFR_NEXT_LONG( p ); + break; + + default: + ; + } + + *axpos = xpos; + *aypos = ypos; + *axsize = xsize; + *aysize = ysize; + *aadvance = advance; + *aformat = flags >> 2; + *pdata = p; + + Exit: + return error; + + Too_Short: + error = PFR_Err_Invalid_Table; + FT_ERROR(( "pfr_load_bitmap_metrics: invalid glyph data\n" )); + goto Exit; + } + + + static FT_Error + pfr_load_bitmap_bits( FT_Byte* p, + FT_Byte* limit, + FT_UInt format, + FT_Bool decreasing, + FT_Bitmap* target ) + { + FT_Error error = PFR_Err_Ok; + PFR_BitWriterRec writer; + + + if ( target->rows > 0 && target->width > 0 ) + { + pfr_bitwriter_init( &writer, target, decreasing ); + + switch ( format ) + { + case 0: /* packed bits */ + pfr_bitwriter_decode_bytes( &writer, p, limit ); + break; + + case 1: /* RLE1 */ + pfr_bitwriter_decode_rle1( &writer, p, limit ); + break; + + case 2: /* RLE2 */ + pfr_bitwriter_decode_rle2( &writer, p, limit ); + break; + + default: + FT_ERROR(( "pfr_read_bitmap_data: invalid image type\n" )); + error = PFR_Err_Invalid_File_Format; + } + } + + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BITMAP LOADING *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( FT_Error ) + pfr_slot_load_bitmap( PFR_Slot glyph, + PFR_Size size, + FT_UInt glyph_index ) + { + FT_Error error; + PFR_Face face = (PFR_Face) glyph->root.face; + FT_Stream stream = face->root.stream; + PFR_PhyFont phys = &face->phy_font; + FT_ULong gps_offset; + FT_ULong gps_size; + PFR_Char character; + PFR_Strike strike; + + + character = &phys->chars[glyph_index]; + + /* Look-up a bitmap strike corresponding to the current */ + /* character dimensions */ + { + FT_UInt n; + + + strike = phys->strikes; + for ( n = 0; n < phys->num_strikes; n++ ) + { + if ( strike->x_ppm == (FT_UInt)size->root.metrics.x_ppem && + strike->y_ppm == (FT_UInt)size->root.metrics.y_ppem ) + { + goto Found_Strike; + } + + strike++; + } + + /* couldn't find it */ + return PFR_Err_Invalid_Argument; + } + + Found_Strike: + + /* Now lookup the glyph's position within the file */ + { + FT_UInt char_len; + + + char_len = 4; + if ( strike->flags & 1 ) char_len += 1; + if ( strike->flags & 2 ) char_len += 1; + if ( strike->flags & 4 ) char_len += 1; + + /* Access data directly in the frame to speed lookups */ + if ( FT_STREAM_SEEK( phys->bct_offset + strike->bct_offset ) || + FT_FRAME_ENTER( char_len * strike->num_bitmaps ) ) + goto Exit; + + pfr_lookup_bitmap_data( stream->cursor, + stream->limit, + strike->num_bitmaps, + strike->flags, + character->char_code, + &gps_offset, + &gps_size ); + + FT_FRAME_EXIT(); + + if ( gps_size == 0 ) + { + /* Could not find a bitmap program string for this glyph */ + error = PFR_Err_Invalid_Argument; + goto Exit; + } + } + + /* get the bitmap metrics */ + { + FT_Long xpos = 0, ypos = 0, advance = 0; + FT_UInt xsize = 0, ysize = 0, format = 0; + FT_Byte* p; + + + /* compute linear advance */ + advance = character->advance; + if ( phys->metrics_resolution != phys->outline_resolution ) + advance = FT_MulDiv( advance, + phys->outline_resolution, + phys->metrics_resolution ); + + glyph->root.linearHoriAdvance = advance; + + /* compute default advance, i.e., scaled advance. This can be */ + /* overridden in the bitmap header of certain glyphs. */ + advance = FT_MulDiv( (FT_Fixed)size->root.metrics.x_ppem << 8, + character->advance, + phys->metrics_resolution ); + + if ( FT_STREAM_SEEK( face->header.gps_section_offset + gps_offset ) || + FT_FRAME_ENTER( gps_size ) ) + goto Exit; + + p = stream->cursor; + error = pfr_load_bitmap_metrics( &p, stream->limit, + advance, + &xpos, &ypos, + &xsize, &ysize, + &advance, &format ); + + /* + * XXX: on 16bit system, we return an error for huge bitmap + * which causes a size truncation, because truncated + * size properties makes bitmap glyph broken. + */ + if ( xpos > FT_INT_MAX || ( ypos + ysize ) > FT_INT_MAX ) + { + FT_TRACE1(( "pfr_slot_load_bitmap:" )); + FT_TRACE1(( "huge bitmap glyph %dx%d over FT_GlyphSlot\n", + xpos, ypos )); + error = PFR_Err_Invalid_Pixel_Size; + } + + if ( !error ) + { + glyph->root.format = FT_GLYPH_FORMAT_BITMAP; + + /* Set up glyph bitmap and metrics */ + + /* XXX: needs casts to fit FT_Bitmap.{width|rows|pitch} */ + glyph->root.bitmap.width = (FT_Int)xsize; + glyph->root.bitmap.rows = (FT_Int)ysize; + glyph->root.bitmap.pitch = (FT_Int)( xsize + 7 ) >> 3; + glyph->root.bitmap.pixel_mode = FT_PIXEL_MODE_MONO; + + /* XXX: needs casts to fit FT_Glyph_Metrics.{width|height} */ + glyph->root.metrics.width = (FT_Pos)xsize << 6; + glyph->root.metrics.height = (FT_Pos)ysize << 6; + glyph->root.metrics.horiBearingX = xpos << 6; + glyph->root.metrics.horiBearingY = ypos << 6; + glyph->root.metrics.horiAdvance = FT_PIX_ROUND( ( advance >> 2 ) ); + glyph->root.metrics.vertBearingX = - glyph->root.metrics.width >> 1; + glyph->root.metrics.vertBearingY = 0; + glyph->root.metrics.vertAdvance = size->root.metrics.height; + + /* XXX: needs casts fit FT_GlyphSlotRec.bitmap_{left|top} */ + glyph->root.bitmap_left = (FT_Int)xpos; + glyph->root.bitmap_top = (FT_Int)(ypos + ysize); + + /* Allocate and read bitmap data */ + { + FT_ULong len = glyph->root.bitmap.pitch * ysize; + + + error = ft_glyphslot_alloc_bitmap( &glyph->root, len ); + if ( !error ) + { + error = pfr_load_bitmap_bits( + p, + stream->limit, + format, + FT_BOOL(face->header.color_flags & 2), + &glyph->root.bitmap ); + } + } + } + + FT_FRAME_EXIT(); + } + + Exit: + return error; + } + +/* END */ diff --git a/src/pfr/pfrsbit.h b/src/pfr/pfrsbit.h new file mode 100644 index 0000000..015e9e6 --- /dev/null +++ b/src/pfr/pfrsbit.h @@ -0,0 +1,36 @@ +/***************************************************************************/ +/* */ +/* pfrsbit.h */ +/* */ +/* FreeType PFR bitmap loader (specification). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFRSBIT_H__ +#define __PFRSBIT_H__ + +#include "pfrobjs.h" + +FT_BEGIN_HEADER + + FT_LOCAL( FT_Error ) + pfr_slot_load_bitmap( PFR_Slot glyph, + PFR_Size size, + FT_UInt glyph_index ); + +FT_END_HEADER + +#endif /* __PFR_SBIT_H__ */ + + +/* END */ diff --git a/src/pfr/pfrtypes.h b/src/pfr/pfrtypes.h new file mode 100644 index 0000000..9183108 --- /dev/null +++ b/src/pfr/pfrtypes.h @@ -0,0 +1,362 @@ +/***************************************************************************/ +/* */ +/* pfrtypes.h */ +/* */ +/* FreeType PFR data structures (specification only). */ +/* */ +/* Copyright 2002, 2003, 2005, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PFRTYPES_H__ +#define __PFRTYPES_H__ + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H + +FT_BEGIN_HEADER + + /************************************************************************/ + + /* the PFR Header structure */ + typedef struct PFR_HeaderRec_ + { + FT_UInt32 signature; + FT_UInt version; + FT_UInt signature2; + FT_UInt header_size; + + FT_UInt log_dir_size; + FT_UInt log_dir_offset; + + FT_UInt log_font_max_size; + FT_UInt32 log_font_section_size; + FT_UInt32 log_font_section_offset; + + FT_UInt32 phy_font_max_size; + FT_UInt32 phy_font_section_size; + FT_UInt32 phy_font_section_offset; + + FT_UInt gps_max_size; + FT_UInt32 gps_section_size; + FT_UInt32 gps_section_offset; + + FT_UInt max_blue_values; + FT_UInt max_x_orus; + FT_UInt max_y_orus; + + FT_UInt phy_font_max_size_high; + FT_UInt color_flags; + + FT_UInt32 bct_max_size; + FT_UInt32 bct_set_max_size; + FT_UInt32 phy_bct_set_max_size; + + FT_UInt num_phy_fonts; + FT_UInt max_vert_stem_snap; + FT_UInt max_horz_stem_snap; + FT_UInt max_chars; + + } PFR_HeaderRec, *PFR_Header; + + + /* used in `color_flags' field of the PFR_Header */ + typedef enum PFR_HeaderFlags_ + { + PFR_FLAG_BLACK_PIXEL = 1, + PFR_FLAG_INVERT_BITMAP = 2 + + } PFR_HeaderFlags; + + + /************************************************************************/ + + typedef struct PFR_LogFontRec_ + { + FT_UInt32 size; + FT_UInt32 offset; + + FT_Int32 matrix[4]; + FT_UInt stroke_flags; + FT_Int stroke_thickness; + FT_Int bold_thickness; + FT_Int32 miter_limit; + + FT_UInt32 phys_size; + FT_UInt32 phys_offset; + + } PFR_LogFontRec, *PFR_LogFont; + + + typedef enum PFR_LogFlags_ + { + PFR_LOG_EXTRA_ITEMS = 0x40, + PFR_LOG_2BYTE_BOLD = 0x20, + PFR_LOG_BOLD = 0x10, + PFR_LOG_2BYTE_STROKE = 8, + PFR_LOG_STROKE = 4, + PFR_LINE_JOIN_MASK = 3 + + } PFR_LogFlags; + + + typedef enum PFR_LineJoinFlags_ + { + PFR_LINE_JOIN_MITER = 0, + PFR_LINE_JOIN_ROUND = 1, + PFR_LINE_JOIN_BEVEL = 2 + + } PFR_LineJoinFlags; + + + /************************************************************************/ + + typedef enum PFR_BitmapFlags_ + { + PFR_BITMAP_3BYTE_OFFSET = 4, + PFR_BITMAP_2BYTE_SIZE = 2, + PFR_BITMAP_2BYTE_CHARCODE = 1 + + } PFR_BitmapFlags; + + + typedef struct PFR_BitmapCharRec_ + { + FT_UInt char_code; + FT_UInt gps_size; + FT_UInt32 gps_offset; + + } PFR_BitmapCharRec, *PFR_BitmapChar; + + + typedef enum PFR_StrikeFlags_ + { + PFR_STRIKE_2BYTE_COUNT = 0x10, + PFR_STRIKE_3BYTE_OFFSET = 0x08, + PFR_STRIKE_3BYTE_SIZE = 0x04, + PFR_STRIKE_2BYTE_YPPM = 0x02, + PFR_STRIKE_2BYTE_XPPM = 0x01 + + } PFR_StrikeFlags; + + + typedef struct PFR_StrikeRec_ + { + FT_UInt x_ppm; + FT_UInt y_ppm; + FT_UInt flags; + + FT_UInt32 gps_size; + FT_UInt32 gps_offset; + + FT_UInt32 bct_size; + FT_UInt32 bct_offset; + + /* optional */ + FT_UInt num_bitmaps; + PFR_BitmapChar bitmaps; + + } PFR_StrikeRec, *PFR_Strike; + + + /************************************************************************/ + + typedef struct PFR_CharRec_ + { + FT_UInt char_code; + FT_Int advance; + FT_UInt gps_size; + FT_UInt32 gps_offset; + + } PFR_CharRec, *PFR_Char; + + + /************************************************************************/ + + typedef struct PFR_DimensionRec_ + { + FT_UInt standard; + FT_UInt num_stem_snaps; + FT_Int* stem_snaps; + + } PFR_DimensionRec, *PFR_Dimension; + + /************************************************************************/ + + typedef struct PFR_KernItemRec_* PFR_KernItem; + + typedef struct PFR_KernItemRec_ + { + PFR_KernItem next; + FT_Byte pair_count; + FT_Byte flags; + FT_Short base_adj; + FT_UInt pair_size; + FT_Offset offset; + FT_UInt32 pair1; + FT_UInt32 pair2; + + } PFR_KernItemRec; + + +#define PFR_KERN_INDEX( g1, g2 ) \ + ( ( (FT_UInt32)(g1) << 16 ) | (FT_UInt16)(g2) ) + +#define PFR_KERN_PAIR_INDEX( pair ) \ + PFR_KERN_INDEX( (pair)->glyph1, (pair)->glyph2 ) + +#define PFR_NEXT_KPAIR( p ) ( p += 2, \ + ( (FT_UInt32)p[-2] << 16 ) | p[-1] ) + + + /************************************************************************/ + + typedef struct PFR_PhyFontRec_ + { + FT_Memory memory; + FT_UInt32 offset; + + FT_UInt font_ref_number; + FT_UInt outline_resolution; + FT_UInt metrics_resolution; + FT_BBox bbox; + FT_UInt flags; + FT_UInt standard_advance; + + FT_Int ascent; /* optional, bbox.yMax if not present */ + FT_Int descent; /* optional, bbox.yMin if not present */ + FT_Int leading; /* optional, 0 if not present */ + + PFR_DimensionRec horizontal; + PFR_DimensionRec vertical; + + FT_String* font_id; + FT_String* family_name; + FT_String* style_name; + + FT_UInt num_strikes; + FT_UInt max_strikes; + PFR_StrikeRec* strikes; + + FT_UInt num_blue_values; + FT_Int *blue_values; + FT_UInt blue_fuzz; + FT_UInt blue_scale; + + FT_UInt num_chars; + FT_Offset chars_offset; + PFR_Char chars; + + FT_UInt num_kern_pairs; + PFR_KernItem kern_items; + PFR_KernItem* kern_items_tail; + + /* not part of the spec, but used during load */ + FT_Long bct_offset; + FT_Byte* cursor; + + } PFR_PhyFontRec, *PFR_PhyFont; + + + typedef enum PFR_PhyFlags_ + { + PFR_PHY_EXTRA_ITEMS = 0x80, + PFR_PHY_3BYTE_GPS_OFFSET = 0x20, + PFR_PHY_2BYTE_GPS_SIZE = 0x10, + PFR_PHY_ASCII_CODE = 0x08, + PFR_PHY_PROPORTIONAL = 0x04, + PFR_PHY_2BYTE_CHARCODE = 0x02, + PFR_PHY_VERTICAL = 0x01 + + } PFR_PhyFlags; + + + typedef enum PFR_KernFlags_ + { + PFR_KERN_2BYTE_CHAR = 0x01, + PFR_KERN_2BYTE_ADJ = 0x02 + + } PFR_KernFlags; + + + /************************************************************************/ + + typedef enum PFR_GlyphFlags_ + { + PFR_GLYPH_IS_COMPOUND = 0x80, + PFR_GLYPH_EXTRA_ITEMS = 0x08, + PFR_GLYPH_1BYTE_XYCOUNT = 0x04, + PFR_GLYPH_XCOUNT = 0x02, + PFR_GLYPH_YCOUNT = 0x01 + + } PFR_GlyphFlags; + + + /* controlled coordinate */ + typedef struct PFR_CoordRec_ + { + FT_UInt org; + FT_UInt cur; + + } PFR_CoordRec, *PFR_Coord; + + + typedef struct PFR_SubGlyphRec_ + { + FT_Fixed x_scale; + FT_Fixed y_scale; + FT_Int x_delta; + FT_Int y_delta; + FT_UInt32 gps_offset; + FT_UInt gps_size; + + } PFR_SubGlyphRec, *PFR_SubGlyph; + + + typedef enum PFR_SubgGlyphFlags_ + { + PFR_SUBGLYPH_3BYTE_OFFSET = 0x80, + PFR_SUBGLYPH_2BYTE_SIZE = 0x40, + PFR_SUBGLYPH_YSCALE = 0x20, + PFR_SUBGLYPH_XSCALE = 0x10 + + } PFR_SubGlyphFlags; + + + typedef struct PFR_GlyphRec_ + { + FT_Byte format; + +#if 0 + FT_UInt num_x_control; + FT_UInt num_y_control; +#endif + FT_UInt max_xy_control; + FT_Pos* x_control; + FT_Pos* y_control; + + + FT_UInt num_subs; + FT_UInt max_subs; + PFR_SubGlyphRec* subs; + + FT_GlyphLoader loader; + FT_Bool path_begun; + + } PFR_GlyphRec, *PFR_Glyph; + + +FT_END_HEADER + +#endif /* __PFRTYPES_H__ */ + + +/* END */ diff --git a/src/pfr/rules.mk b/src/pfr/rules.mk new file mode 100644 index 0000000..60b96c7 --- /dev/null +++ b/src/pfr/rules.mk @@ -0,0 +1,73 @@ +# +# FreeType 2 PFR driver configuration rules +# + + +# Copyright 2002, 2003 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# pfr driver directory +# +PFR_DIR := $(SRC_DIR)/pfr + + +# compilation flags for the driver +# +PFR_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(PFR_DIR)) + + +# pfr driver sources (i.e., C files) +# +PFR_DRV_SRC := $(PFR_DIR)/pfrload.c \ + $(PFR_DIR)/pfrgload.c \ + $(PFR_DIR)/pfrcmap.c \ + $(PFR_DIR)/pfrdrivr.c \ + $(PFR_DIR)/pfrsbit.c \ + $(PFR_DIR)/pfrobjs.c + +# pfr driver headers +# +PFR_DRV_H := $(PFR_DRV_SRC:%.c=%.h) \ + $(PFR_DIR)/pfrerror.h \ + $(PFR_DIR)/pfrtypes.h + + +# Pfr driver object(s) +# +# PFR_DRV_OBJ_M is used during `multi' builds +# PFR_DRV_OBJ_S is used during `single' builds +# +PFR_DRV_OBJ_M := $(PFR_DRV_SRC:$(PFR_DIR)/%.c=$(OBJ_DIR)/%.$O) +PFR_DRV_OBJ_S := $(OBJ_DIR)/pfr.$O + +# pfr driver source file for single build +# +PFR_DRV_SRC_S := $(PFR_DIR)/pfr.c + + +# pfr driver - single object +# +$(PFR_DRV_OBJ_S): $(PFR_DRV_SRC_S) $(PFR_DRV_SRC) $(FREETYPE_H) $(PFR_DRV_H) + $(PFR_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(PFR_DRV_SRC_S)) + + +# pfr driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(PFR_DIR)/%.c $(FREETYPE_H) $(PFR_DRV_H) + $(PFR_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(PFR_DRV_OBJ_S) +DRV_OBJS_M += $(PFR_DRV_OBJ_M) + + +# EOF diff --git a/src/psaux/Jamfile b/src/psaux/Jamfile new file mode 100644 index 0000000..faeded9 --- /dev/null +++ b/src/psaux/Jamfile @@ -0,0 +1,31 @@ +# FreeType 2 src/psaux Jamfile +# +# Copyright 2001, 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) psaux ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = psauxmod psobjs t1decode t1cmap + psconv afmparse + ; + } + else + { + _sources = psaux ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/psaux Jamfile diff --git a/src/psaux/afmparse.c b/src/psaux/afmparse.c new file mode 100644 index 0000000..5f3f9e6 --- /dev/null +++ b/src/psaux/afmparse.c @@ -0,0 +1,961 @@ +/***************************************************************************/ +/* */ +/* afmparse.c */ +/* */ +/* AFM parser (body). */ +/* */ +/* Copyright 2006-2010, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + +#include "afmparse.h" +#include "psconv.h" + +#include "psauxerr.h" + + +/***************************************************************************/ +/* */ +/* AFM_Stream */ +/* */ +/* The use of AFM_Stream is largely inspired by parseAFM.[ch] from t1lib. */ +/* */ +/* */ + + enum + { + AFM_STREAM_STATUS_NORMAL, + AFM_STREAM_STATUS_EOC, + AFM_STREAM_STATUS_EOL, + AFM_STREAM_STATUS_EOF + }; + + + typedef struct AFM_StreamRec_ + { + FT_Byte* cursor; + FT_Byte* base; + FT_Byte* limit; + + FT_Int status; + + } AFM_StreamRec; + + +#ifndef EOF +#define EOF -1 +#endif + + + /* this works because empty lines are ignored */ +#define AFM_IS_NEWLINE( ch ) ( (ch) == '\r' || (ch) == '\n' ) + +#define AFM_IS_EOF( ch ) ( (ch) == EOF || (ch) == '\x1a' ) +#define AFM_IS_SPACE( ch ) ( (ch) == ' ' || (ch) == '\t' ) + + /* column separator; there is no `column' in the spec actually */ +#define AFM_IS_SEP( ch ) ( (ch) == ';' ) + +#define AFM_GETC() \ + ( ( (stream)->cursor < (stream)->limit ) ? *(stream)->cursor++ \ + : EOF ) + +#define AFM_STREAM_KEY_BEGIN( stream ) \ + (char*)( (stream)->cursor - 1 ) + +#define AFM_STREAM_KEY_LEN( stream, key ) \ + ( (char*)(stream)->cursor - key - 1 ) + +#define AFM_STATUS_EOC( stream ) \ + ( (stream)->status >= AFM_STREAM_STATUS_EOC ) + +#define AFM_STATUS_EOL( stream ) \ + ( (stream)->status >= AFM_STREAM_STATUS_EOL ) + +#define AFM_STATUS_EOF( stream ) \ + ( (stream)->status >= AFM_STREAM_STATUS_EOF ) + + + static int + afm_stream_skip_spaces( AFM_Stream stream ) + { + int ch = 0; /* make stupid compiler happy */ + + + if ( AFM_STATUS_EOC( stream ) ) + return ';'; + + while ( 1 ) + { + ch = AFM_GETC(); + if ( !AFM_IS_SPACE( ch ) ) + break; + } + + if ( AFM_IS_NEWLINE( ch ) ) + stream->status = AFM_STREAM_STATUS_EOL; + else if ( AFM_IS_SEP( ch ) ) + stream->status = AFM_STREAM_STATUS_EOC; + else if ( AFM_IS_EOF( ch ) ) + stream->status = AFM_STREAM_STATUS_EOF; + + return ch; + } + + + /* read a key or value in current column */ + static char* + afm_stream_read_one( AFM_Stream stream ) + { + char* str; + int ch; + + + afm_stream_skip_spaces( stream ); + if ( AFM_STATUS_EOC( stream ) ) + return NULL; + + str = AFM_STREAM_KEY_BEGIN( stream ); + + while ( 1 ) + { + ch = AFM_GETC(); + if ( AFM_IS_SPACE( ch ) ) + break; + else if ( AFM_IS_NEWLINE( ch ) ) + { + stream->status = AFM_STREAM_STATUS_EOL; + break; + } + else if ( AFM_IS_SEP( ch ) ) + { + stream->status = AFM_STREAM_STATUS_EOC; + break; + } + else if ( AFM_IS_EOF( ch ) ) + { + stream->status = AFM_STREAM_STATUS_EOF; + break; + } + } + + return str; + } + + + /* read a string (i.e., read to EOL) */ + static char* + afm_stream_read_string( AFM_Stream stream ) + { + char* str; + int ch; + + + afm_stream_skip_spaces( stream ); + if ( AFM_STATUS_EOL( stream ) ) + return NULL; + + str = AFM_STREAM_KEY_BEGIN( stream ); + + /* scan to eol */ + while ( 1 ) + { + ch = AFM_GETC(); + if ( AFM_IS_NEWLINE( ch ) ) + { + stream->status = AFM_STREAM_STATUS_EOL; + break; + } + else if ( AFM_IS_EOF( ch ) ) + { + stream->status = AFM_STREAM_STATUS_EOF; + break; + } + } + + return str; + } + + + /*************************************************************************/ + /* */ + /* AFM_Parser */ + /* */ + /* */ + + /* all keys defined in Ch. 7-10 of 5004.AFM_Spec.pdf */ + typedef enum AFM_Token_ + { + AFM_TOKEN_ASCENDER, + AFM_TOKEN_AXISLABEL, + AFM_TOKEN_AXISTYPE, + AFM_TOKEN_B, + AFM_TOKEN_BLENDAXISTYPES, + AFM_TOKEN_BLENDDESIGNMAP, + AFM_TOKEN_BLENDDESIGNPOSITIONS, + AFM_TOKEN_C, + AFM_TOKEN_CC, + AFM_TOKEN_CH, + AFM_TOKEN_CAPHEIGHT, + AFM_TOKEN_CHARWIDTH, + AFM_TOKEN_CHARACTERSET, + AFM_TOKEN_CHARACTERS, + AFM_TOKEN_DESCENDER, + AFM_TOKEN_ENCODINGSCHEME, + AFM_TOKEN_ENDAXIS, + AFM_TOKEN_ENDCHARMETRICS, + AFM_TOKEN_ENDCOMPOSITES, + AFM_TOKEN_ENDDIRECTION, + AFM_TOKEN_ENDFONTMETRICS, + AFM_TOKEN_ENDKERNDATA, + AFM_TOKEN_ENDKERNPAIRS, + AFM_TOKEN_ENDTRACKKERN, + AFM_TOKEN_ESCCHAR, + AFM_TOKEN_FAMILYNAME, + AFM_TOKEN_FONTBBOX, + AFM_TOKEN_FONTNAME, + AFM_TOKEN_FULLNAME, + AFM_TOKEN_ISBASEFONT, + AFM_TOKEN_ISCIDFONT, + AFM_TOKEN_ISFIXEDPITCH, + AFM_TOKEN_ISFIXEDV, + AFM_TOKEN_ITALICANGLE, + AFM_TOKEN_KP, + AFM_TOKEN_KPH, + AFM_TOKEN_KPX, + AFM_TOKEN_KPY, + AFM_TOKEN_L, + AFM_TOKEN_MAPPINGSCHEME, + AFM_TOKEN_METRICSSETS, + AFM_TOKEN_N, + AFM_TOKEN_NOTICE, + AFM_TOKEN_PCC, + AFM_TOKEN_STARTAXIS, + AFM_TOKEN_STARTCHARMETRICS, + AFM_TOKEN_STARTCOMPOSITES, + AFM_TOKEN_STARTDIRECTION, + AFM_TOKEN_STARTFONTMETRICS, + AFM_TOKEN_STARTKERNDATA, + AFM_TOKEN_STARTKERNPAIRS, + AFM_TOKEN_STARTKERNPAIRS0, + AFM_TOKEN_STARTKERNPAIRS1, + AFM_TOKEN_STARTTRACKKERN, + AFM_TOKEN_STDHW, + AFM_TOKEN_STDVW, + AFM_TOKEN_TRACKKERN, + AFM_TOKEN_UNDERLINEPOSITION, + AFM_TOKEN_UNDERLINETHICKNESS, + AFM_TOKEN_VV, + AFM_TOKEN_VVECTOR, + AFM_TOKEN_VERSION, + AFM_TOKEN_W, + AFM_TOKEN_W0, + AFM_TOKEN_W0X, + AFM_TOKEN_W0Y, + AFM_TOKEN_W1, + AFM_TOKEN_W1X, + AFM_TOKEN_W1Y, + AFM_TOKEN_WX, + AFM_TOKEN_WY, + AFM_TOKEN_WEIGHT, + AFM_TOKEN_WEIGHTVECTOR, + AFM_TOKEN_XHEIGHT, + N_AFM_TOKENS, + AFM_TOKEN_UNKNOWN + + } AFM_Token; + + + static const char* const afm_key_table[N_AFM_TOKENS] = + { + "Ascender", + "AxisLabel", + "AxisType", + "B", + "BlendAxisTypes", + "BlendDesignMap", + "BlendDesignPositions", + "C", + "CC", + "CH", + "CapHeight", + "CharWidth", + "CharacterSet", + "Characters", + "Descender", + "EncodingScheme", + "EndAxis", + "EndCharMetrics", + "EndComposites", + "EndDirection", + "EndFontMetrics", + "EndKernData", + "EndKernPairs", + "EndTrackKern", + "EscChar", + "FamilyName", + "FontBBox", + "FontName", + "FullName", + "IsBaseFont", + "IsCIDFont", + "IsFixedPitch", + "IsFixedV", + "ItalicAngle", + "KP", + "KPH", + "KPX", + "KPY", + "L", + "MappingScheme", + "MetricsSets", + "N", + "Notice", + "PCC", + "StartAxis", + "StartCharMetrics", + "StartComposites", + "StartDirection", + "StartFontMetrics", + "StartKernData", + "StartKernPairs", + "StartKernPairs0", + "StartKernPairs1", + "StartTrackKern", + "StdHW", + "StdVW", + "TrackKern", + "UnderlinePosition", + "UnderlineThickness", + "VV", + "VVector", + "Version", + "W", + "W0", + "W0X", + "W0Y", + "W1", + "W1X", + "W1Y", + "WX", + "WY", + "Weight", + "WeightVector", + "XHeight" + }; + + + /* + * `afm_parser_read_vals' and `afm_parser_next_key' provide + * high-level operations to an AFM_Stream. The rest of the + * parser functions should use them without accessing the + * AFM_Stream directly. + */ + + FT_LOCAL_DEF( FT_Int ) + afm_parser_read_vals( AFM_Parser parser, + AFM_Value vals, + FT_UInt n ) + { + AFM_Stream stream = parser->stream; + char* str; + FT_UInt i; + + + if ( n > AFM_MAX_ARGUMENTS ) + return 0; + + for ( i = 0; i < n; i++ ) + { + FT_Offset len; + AFM_Value val = vals + i; + + + if ( val->type == AFM_VALUE_TYPE_STRING ) + str = afm_stream_read_string( stream ); + else + str = afm_stream_read_one( stream ); + + if ( !str ) + break; + + len = AFM_STREAM_KEY_LEN( stream, str ); + + switch ( val->type ) + { + case AFM_VALUE_TYPE_STRING: + case AFM_VALUE_TYPE_NAME: + { + FT_Memory memory = parser->memory; + FT_Error error; + + + if ( !FT_QALLOC( val->u.s, len + 1 ) ) + { + ft_memcpy( val->u.s, str, len ); + val->u.s[len] = '\0'; + } + } + break; + + case AFM_VALUE_TYPE_FIXED: + val->u.f = PS_Conv_ToFixed( (FT_Byte**)(void*)&str, + (FT_Byte*)str + len, 0 ); + break; + + case AFM_VALUE_TYPE_INTEGER: + val->u.i = PS_Conv_ToInt( (FT_Byte**)(void*)&str, + (FT_Byte*)str + len ); + break; + + case AFM_VALUE_TYPE_BOOL: + val->u.b = FT_BOOL( len == 4 && + !ft_strncmp( str, "true", 4 ) ); + break; + + case AFM_VALUE_TYPE_INDEX: + if ( parser->get_index ) + val->u.i = parser->get_index( str, len, parser->user_data ); + else + val->u.i = 0; + break; + } + } + + return i; + } + + + FT_LOCAL_DEF( char* ) + afm_parser_next_key( AFM_Parser parser, + FT_Bool line, + FT_Offset* len ) + { + AFM_Stream stream = parser->stream; + char* key = 0; /* make stupid compiler happy */ + + + if ( line ) + { + while ( 1 ) + { + /* skip current line */ + if ( !AFM_STATUS_EOL( stream ) ) + afm_stream_read_string( stream ); + + stream->status = AFM_STREAM_STATUS_NORMAL; + key = afm_stream_read_one( stream ); + + /* skip empty line */ + if ( !key && + !AFM_STATUS_EOF( stream ) && + AFM_STATUS_EOL( stream ) ) + continue; + + break; + } + } + else + { + while ( 1 ) + { + /* skip current column */ + while ( !AFM_STATUS_EOC( stream ) ) + afm_stream_read_one( stream ); + + stream->status = AFM_STREAM_STATUS_NORMAL; + key = afm_stream_read_one( stream ); + + /* skip empty column */ + if ( !key && + !AFM_STATUS_EOF( stream ) && + AFM_STATUS_EOC( stream ) ) + continue; + + break; + } + } + + if ( len ) + *len = ( key ) ? (FT_Offset)AFM_STREAM_KEY_LEN( stream, key ) + : 0; + + return key; + } + + + static AFM_Token + afm_tokenize( const char* key, + FT_Offset len ) + { + int n; + + + for ( n = 0; n < N_AFM_TOKENS; n++ ) + { + if ( *( afm_key_table[n] ) == *key ) + { + for ( ; n < N_AFM_TOKENS; n++ ) + { + if ( *( afm_key_table[n] ) != *key ) + return AFM_TOKEN_UNKNOWN; + + if ( ft_strncmp( afm_key_table[n], key, len ) == 0 ) + return (AFM_Token) n; + } + } + } + + return AFM_TOKEN_UNKNOWN; + } + + + FT_LOCAL_DEF( FT_Error ) + afm_parser_init( AFM_Parser parser, + FT_Memory memory, + FT_Byte* base, + FT_Byte* limit ) + { + AFM_Stream stream = NULL; + FT_Error error; + + + if ( FT_NEW( stream ) ) + return error; + + stream->cursor = stream->base = base; + stream->limit = limit; + + /* don't skip the first line during the first call */ + stream->status = AFM_STREAM_STATUS_EOL; + + parser->memory = memory; + parser->stream = stream; + parser->FontInfo = NULL; + parser->get_index = NULL; + + return PSaux_Err_Ok; + } + + + FT_LOCAL( void ) + afm_parser_done( AFM_Parser parser ) + { + FT_Memory memory = parser->memory; + + + FT_FREE( parser->stream ); + } + + + FT_LOCAL_DEF( FT_Error ) + afm_parser_read_int( AFM_Parser parser, + FT_Int* aint ) + { + AFM_ValueRec val; + + + val.type = AFM_VALUE_TYPE_INTEGER; + + if ( afm_parser_read_vals( parser, &val, 1 ) == 1 ) + { + *aint = val.u.i; + + return PSaux_Err_Ok; + } + else + return PSaux_Err_Syntax_Error; + } + + + static FT_Error + afm_parse_track_kern( AFM_Parser parser ) + { + AFM_FontInfo fi = parser->FontInfo; + AFM_TrackKern tk; + char* key; + FT_Offset len; + int n = -1; + + + if ( afm_parser_read_int( parser, &fi->NumTrackKern ) ) + goto Fail; + + if ( fi->NumTrackKern ) + { + FT_Memory memory = parser->memory; + FT_Error error; + + + if ( FT_QNEW_ARRAY( fi->TrackKerns, fi->NumTrackKern ) ) + return error; + } + + while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 ) + { + AFM_ValueRec shared_vals[5]; + + + switch ( afm_tokenize( key, len ) ) + { + case AFM_TOKEN_TRACKKERN: + n++; + + if ( n >= fi->NumTrackKern ) + goto Fail; + + tk = fi->TrackKerns + n; + + shared_vals[0].type = AFM_VALUE_TYPE_INTEGER; + shared_vals[1].type = AFM_VALUE_TYPE_FIXED; + shared_vals[2].type = AFM_VALUE_TYPE_FIXED; + shared_vals[3].type = AFM_VALUE_TYPE_FIXED; + shared_vals[4].type = AFM_VALUE_TYPE_FIXED; + if ( afm_parser_read_vals( parser, shared_vals, 5 ) != 5 ) + goto Fail; + + tk->degree = shared_vals[0].u.i; + tk->min_ptsize = shared_vals[1].u.f; + tk->min_kern = shared_vals[2].u.f; + tk->max_ptsize = shared_vals[3].u.f; + tk->max_kern = shared_vals[4].u.f; + + break; + + case AFM_TOKEN_ENDTRACKKERN: + case AFM_TOKEN_ENDKERNDATA: + case AFM_TOKEN_ENDFONTMETRICS: + fi->NumTrackKern = n + 1; + return PSaux_Err_Ok; + + case AFM_TOKEN_UNKNOWN: + break; + + default: + goto Fail; + } + } + + Fail: + return PSaux_Err_Syntax_Error; + } + + +#undef KERN_INDEX +#define KERN_INDEX( g1, g2 ) ( ( (FT_ULong)g1 << 16 ) | g2 ) + + + /* compare two kerning pairs */ + FT_CALLBACK_DEF( int ) + afm_compare_kern_pairs( const void* a, + const void* b ) + { + AFM_KernPair kp1 = (AFM_KernPair)a; + AFM_KernPair kp2 = (AFM_KernPair)b; + + FT_ULong index1 = KERN_INDEX( kp1->index1, kp1->index2 ); + FT_ULong index2 = KERN_INDEX( kp2->index1, kp2->index2 ); + + + if ( index1 > index2 ) + return 1; + else if ( index1 < index2 ) + return -1; + else + return 0; + } + + + static FT_Error + afm_parse_kern_pairs( AFM_Parser parser ) + { + AFM_FontInfo fi = parser->FontInfo; + AFM_KernPair kp; + char* key; + FT_Offset len; + int n = -1; + + + if ( afm_parser_read_int( parser, &fi->NumKernPair ) ) + goto Fail; + + if ( fi->NumKernPair ) + { + FT_Memory memory = parser->memory; + FT_Error error; + + + if ( FT_QNEW_ARRAY( fi->KernPairs, fi->NumKernPair ) ) + return error; + } + + while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 ) + { + AFM_Token token = afm_tokenize( key, len ); + + + switch ( token ) + { + case AFM_TOKEN_KP: + case AFM_TOKEN_KPX: + case AFM_TOKEN_KPY: + { + FT_Int r; + AFM_ValueRec shared_vals[4]; + + + n++; + + if ( n >= fi->NumKernPair ) + goto Fail; + + kp = fi->KernPairs + n; + + shared_vals[0].type = AFM_VALUE_TYPE_INDEX; + shared_vals[1].type = AFM_VALUE_TYPE_INDEX; + shared_vals[2].type = AFM_VALUE_TYPE_INTEGER; + shared_vals[3].type = AFM_VALUE_TYPE_INTEGER; + r = afm_parser_read_vals( parser, shared_vals, 4 ); + if ( r < 3 ) + goto Fail; + + kp->index1 = shared_vals[0].u.i; + kp->index2 = shared_vals[1].u.i; + if ( token == AFM_TOKEN_KPY ) + { + kp->x = 0; + kp->y = shared_vals[2].u.i; + } + else + { + kp->x = shared_vals[2].u.i; + kp->y = ( token == AFM_TOKEN_KP && r == 4 ) + ? shared_vals[3].u.i : 0; + } + } + break; + + case AFM_TOKEN_ENDKERNPAIRS: + case AFM_TOKEN_ENDKERNDATA: + case AFM_TOKEN_ENDFONTMETRICS: + fi->NumKernPair = n + 1; + ft_qsort( fi->KernPairs, fi->NumKernPair, + sizeof ( AFM_KernPairRec ), + afm_compare_kern_pairs ); + return PSaux_Err_Ok; + + case AFM_TOKEN_UNKNOWN: + break; + + default: + goto Fail; + } + } + + Fail: + return PSaux_Err_Syntax_Error; + } + + + static FT_Error + afm_parse_kern_data( AFM_Parser parser ) + { + FT_Error error; + char* key; + FT_Offset len; + + + while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 ) + { + switch ( afm_tokenize( key, len ) ) + { + case AFM_TOKEN_STARTTRACKKERN: + error = afm_parse_track_kern( parser ); + if ( error ) + return error; + break; + + case AFM_TOKEN_STARTKERNPAIRS: + case AFM_TOKEN_STARTKERNPAIRS0: + error = afm_parse_kern_pairs( parser ); + if ( error ) + return error; + break; + + case AFM_TOKEN_ENDKERNDATA: + case AFM_TOKEN_ENDFONTMETRICS: + return PSaux_Err_Ok; + + case AFM_TOKEN_UNKNOWN: + break; + + default: + goto Fail; + } + } + + Fail: + return PSaux_Err_Syntax_Error; + } + + + static FT_Error + afm_parser_skip_section( AFM_Parser parser, + FT_UInt n, + AFM_Token end_section ) + { + char* key; + FT_Offset len; + + + while ( n-- > 0 ) + { + key = afm_parser_next_key( parser, 1, NULL ); + if ( !key ) + goto Fail; + } + + while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 ) + { + AFM_Token token = afm_tokenize( key, len ); + + + if ( token == end_section || token == AFM_TOKEN_ENDFONTMETRICS ) + return PSaux_Err_Ok; + } + + Fail: + return PSaux_Err_Syntax_Error; + } + + + FT_LOCAL_DEF( FT_Error ) + afm_parser_parse( AFM_Parser parser ) + { + FT_Memory memory = parser->memory; + AFM_FontInfo fi = parser->FontInfo; + FT_Error error = PSaux_Err_Syntax_Error; + char* key; + FT_Offset len; + FT_Int metrics_sets = 0; + + + if ( !fi ) + return PSaux_Err_Invalid_Argument; + + key = afm_parser_next_key( parser, 1, &len ); + if ( !key || len != 16 || + ft_strncmp( key, "StartFontMetrics", 16 ) != 0 ) + return PSaux_Err_Unknown_File_Format; + + while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 ) + { + AFM_ValueRec shared_vals[4]; + + + switch ( afm_tokenize( key, len ) ) + { + case AFM_TOKEN_METRICSSETS: + if ( afm_parser_read_int( parser, &metrics_sets ) ) + goto Fail; + + if ( metrics_sets != 0 && metrics_sets != 2 ) + { + error = PSaux_Err_Unimplemented_Feature; + + goto Fail; + } + break; + + case AFM_TOKEN_ISCIDFONT: + shared_vals[0].type = AFM_VALUE_TYPE_BOOL; + if ( afm_parser_read_vals( parser, shared_vals, 1 ) != 1 ) + goto Fail; + + fi->IsCIDFont = shared_vals[0].u.b; + break; + + case AFM_TOKEN_FONTBBOX: + shared_vals[0].type = AFM_VALUE_TYPE_FIXED; + shared_vals[1].type = AFM_VALUE_TYPE_FIXED; + shared_vals[2].type = AFM_VALUE_TYPE_FIXED; + shared_vals[3].type = AFM_VALUE_TYPE_FIXED; + if ( afm_parser_read_vals( parser, shared_vals, 4 ) != 4 ) + goto Fail; + + fi->FontBBox.xMin = shared_vals[0].u.f; + fi->FontBBox.yMin = shared_vals[1].u.f; + fi->FontBBox.xMax = shared_vals[2].u.f; + fi->FontBBox.yMax = shared_vals[3].u.f; + break; + + case AFM_TOKEN_ASCENDER: + shared_vals[0].type = AFM_VALUE_TYPE_FIXED; + if ( afm_parser_read_vals( parser, shared_vals, 1 ) != 1 ) + goto Fail; + + fi->Ascender = shared_vals[0].u.f; + break; + + case AFM_TOKEN_DESCENDER: + shared_vals[0].type = AFM_VALUE_TYPE_FIXED; + if ( afm_parser_read_vals( parser, shared_vals, 1 ) != 1 ) + goto Fail; + + fi->Descender = shared_vals[0].u.f; + break; + + case AFM_TOKEN_STARTCHARMETRICS: + { + FT_Int n = 0; + + + if ( afm_parser_read_int( parser, &n ) ) + goto Fail; + + error = afm_parser_skip_section( parser, n, + AFM_TOKEN_ENDCHARMETRICS ); + if ( error ) + return error; + } + break; + + case AFM_TOKEN_STARTKERNDATA: + error = afm_parse_kern_data( parser ); + if ( error ) + goto Fail; + /* fall through since we only support kern data */ + + case AFM_TOKEN_ENDFONTMETRICS: + return PSaux_Err_Ok; + + default: + break; + } + } + + Fail: + FT_FREE( fi->TrackKerns ); + fi->NumTrackKern = 0; + + FT_FREE( fi->KernPairs ); + fi->NumKernPair = 0; + + fi->IsCIDFont = 0; + + return error; + } + + +/* END */ diff --git a/src/psaux/afmparse.h b/src/psaux/afmparse.h new file mode 100644 index 0000000..35d9604 --- /dev/null +++ b/src/psaux/afmparse.h @@ -0,0 +1,88 @@ +/***************************************************************************/ +/* */ +/* afmparse.h */ +/* */ +/* AFM parser (specification). */ +/* */ +/* Copyright 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __AFMPARSE_H__ +#define __AFMPARSE_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + afm_parser_init( AFM_Parser parser, + FT_Memory memory, + FT_Byte* base, + FT_Byte* limit ); + + + FT_LOCAL( void ) + afm_parser_done( AFM_Parser parser ); + + + FT_LOCAL( FT_Error ) + afm_parser_parse( AFM_Parser parser ); + + + enum AFM_ValueType_ + { + AFM_VALUE_TYPE_STRING, + AFM_VALUE_TYPE_NAME, + AFM_VALUE_TYPE_FIXED, /* real number */ + AFM_VALUE_TYPE_INTEGER, + AFM_VALUE_TYPE_BOOL, + AFM_VALUE_TYPE_INDEX /* glyph index */ + }; + + + typedef struct AFM_ValueRec_ + { + enum AFM_ValueType_ type; + union + { + char* s; + FT_Fixed f; + FT_Int i; + FT_Bool b; + + } u; + + } AFM_ValueRec, *AFM_Value; + +#define AFM_MAX_ARGUMENTS 5 + + FT_LOCAL( FT_Int ) + afm_parser_read_vals( AFM_Parser parser, + AFM_Value vals, + FT_UInt n ); + + /* read the next key from the next line or column */ + FT_LOCAL( char* ) + afm_parser_next_key( AFM_Parser parser, + FT_Bool line, + FT_Offset* len ); + +FT_END_HEADER + +#endif /* __AFMPARSE_H__ */ + + +/* END */ diff --git a/src/psaux/module.mk b/src/psaux/module.mk new file mode 100644 index 0000000..42bf6f5 --- /dev/null +++ b/src/psaux/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 PSaux module definition +# + + +# Copyright 1996-2000, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += PSAUX_MODULE + +define PSAUX_MODULE +$(OPEN_DRIVER) FT_Module_Class, psaux_module_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)psaux $(ECHO_DRIVER_DESC)Postscript Type 1 & Type 2 helper module$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/psaux/psaux.c b/src/psaux/psaux.c new file mode 100644 index 0000000..a4b9c5c --- /dev/null +++ b/src/psaux/psaux.c @@ -0,0 +1,34 @@ +/***************************************************************************/ +/* */ +/* psaux.c */ +/* */ +/* FreeType auxiliary PostScript driver component (body only). */ +/* */ +/* Copyright 1996-2001, 2002, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> +#include "psobjs.c" +#include "psauxmod.c" +#include "t1decode.c" +#include "t1cmap.c" + +#ifndef T1_CONFIG_OPTION_NO_AFM +#include "afmparse.c" +#endif + +#include "psconv.c" + + +/* END */ diff --git a/src/psaux/psauxerr.h b/src/psaux/psauxerr.h new file mode 100644 index 0000000..d52375f --- /dev/null +++ b/src/psaux/psauxerr.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* psauxerr.h */ +/* */ +/* PS auxiliary module error codes (specification only). */ +/* */ +/* Copyright 2001, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the PS auxiliary module error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __PSAUXERR_H__ +#define __PSAUXERR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX PSaux_Err_ +#define FT_ERR_BASE FT_Mod_Err_PSaux + +#include FT_ERRORS_H + +#endif /* __PSAUXERR_H__ */ + + +/* END */ diff --git a/src/psaux/psauxmod.c b/src/psaux/psauxmod.c new file mode 100644 index 0000000..4b1249d --- /dev/null +++ b/src/psaux/psauxmod.c @@ -0,0 +1,139 @@ +/***************************************************************************/ +/* */ +/* psauxmod.c */ +/* */ +/* FreeType auxiliary PostScript module implementation (body). */ +/* */ +/* Copyright 2000-2001, 2002, 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include "psauxmod.h" +#include "psobjs.h" +#include "t1decode.h" +#include "t1cmap.h" + +#ifndef T1_CONFIG_OPTION_NO_AFM +#include "afmparse.h" +#endif + + + FT_CALLBACK_TABLE_DEF + const PS_Table_FuncsRec ps_table_funcs = + { + ps_table_new, + ps_table_done, + ps_table_add, + ps_table_release + }; + + + FT_CALLBACK_TABLE_DEF + const PS_Parser_FuncsRec ps_parser_funcs = + { + ps_parser_init, + ps_parser_done, + ps_parser_skip_spaces, + ps_parser_skip_PS_token, + ps_parser_to_int, + ps_parser_to_fixed, + ps_parser_to_bytes, + ps_parser_to_coord_array, + ps_parser_to_fixed_array, + ps_parser_to_token, + ps_parser_to_token_array, + ps_parser_load_field, + ps_parser_load_field_table + }; + + + FT_CALLBACK_TABLE_DEF + const T1_Builder_FuncsRec t1_builder_funcs = + { + t1_builder_init, + t1_builder_done, + t1_builder_check_points, + t1_builder_add_point, + t1_builder_add_point1, + t1_builder_add_contour, + t1_builder_start_point, + t1_builder_close_contour + }; + + + FT_CALLBACK_TABLE_DEF + const T1_Decoder_FuncsRec t1_decoder_funcs = + { + t1_decoder_init, + t1_decoder_done, + t1_decoder_parse_charstrings + }; + + +#ifndef T1_CONFIG_OPTION_NO_AFM + FT_CALLBACK_TABLE_DEF + const AFM_Parser_FuncsRec afm_parser_funcs = + { + afm_parser_init, + afm_parser_done, + afm_parser_parse + }; +#endif + + + FT_CALLBACK_TABLE_DEF + const T1_CMap_ClassesRec t1_cmap_classes = + { + &t1_cmap_standard_class_rec, + &t1_cmap_expert_class_rec, + &t1_cmap_custom_class_rec, + &t1_cmap_unicode_class_rec + }; + + + static + const PSAux_Interface psaux_interface = + { + &ps_table_funcs, + &ps_parser_funcs, + &t1_builder_funcs, + &t1_decoder_funcs, + t1_decrypt, + + (const T1_CMap_ClassesRec*) &t1_cmap_classes, + +#ifndef T1_CONFIG_OPTION_NO_AFM + &afm_parser_funcs, +#else + 0, +#endif + }; + + + FT_CALLBACK_TABLE_DEF + const FT_Module_Class psaux_module_class = + { + 0, + sizeof ( FT_ModuleRec ), + "psaux", + 0x20000L, + 0x20000L, + + &psaux_interface, /* module-specific interface */ + + (FT_Module_Constructor)0, + (FT_Module_Destructor) 0, + (FT_Module_Requester) 0 + }; + + +/* END */ diff --git a/src/psaux/psauxmod.h b/src/psaux/psauxmod.h new file mode 100644 index 0000000..1217236 --- /dev/null +++ b/src/psaux/psauxmod.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* psauxmod.h */ +/* */ +/* FreeType auxiliary PostScript module implementation (specification). */ +/* */ +/* Copyright 2000-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSAUXMOD_H__ +#define __PSAUXMOD_H__ + + +#include <ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_EXPORT_VAR( const FT_Module_Class ) psaux_driver_class; + + +FT_END_HEADER + +#endif /* __PSAUXMOD_H__ */ + + +/* END */ diff --git a/src/psaux/psconv.c b/src/psaux/psconv.c new file mode 100644 index 0000000..9ea7fb9 --- /dev/null +++ b/src/psaux/psconv.c @@ -0,0 +1,480 @@ +/***************************************************************************/ +/* */ +/* psconv.c */ +/* */ +/* Some convenience conversions (body). */ +/* */ +/* Copyright 2006, 2008, 2009, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_AUX_H + +#include "psconv.h" +#include "psauxerr.h" + + + /* The following array is used by various functions to quickly convert */ + /* digits (both decimal and non-decimal) into numbers. */ + +#if 'A' == 65 + /* ASCII */ + + static const FT_Char ft_char_table[128] = + { + /* 0x00 */ + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, + -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, + -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, + }; + + /* no character >= 0x80 can represent a valid number */ +#define OP >= + +#endif /* 'A' == 65 */ + +#if 'A' == 193 + /* EBCDIC */ + + static const FT_Char ft_char_table[128] = + { + /* 0x80 */ + -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, -1, -1, -1, -1, -1, -1, + -1, 19, 20, 21, 22, 23, 24, 25, 26, 27, -1, -1, -1, -1, -1, -1, + -1, -1, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, -1, -1, -1, -1, -1, -1, + -1, 19, 20, 21, 22, 23, 24, 25, 26, 27, -1, -1, -1, -1, -1, -1, + -1, -1, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, -1, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, + }; + + /* no character < 0x80 can represent a valid number */ +#define OP < + +#endif /* 'A' == 193 */ + + + FT_LOCAL_DEF( FT_Int ) + PS_Conv_Strtol( FT_Byte** cursor, + FT_Byte* limit, + FT_Int base ) + { + FT_Byte* p = *cursor; + FT_Int num = 0; + FT_Bool sign = 0; + + + if ( p >= limit || base < 2 || base > 36 ) + return 0; + + if ( *p == '-' || *p == '+' ) + { + sign = FT_BOOL( *p == '-' ); + + p++; + if ( p == limit ) + return 0; + } + + for ( ; p < limit; p++ ) + { + FT_Char c; + + + if ( IS_PS_SPACE( *p ) || *p OP 0x80 ) + break; + + c = ft_char_table[*p & 0x7f]; + + if ( c < 0 || c >= base ) + break; + + num = num * base + c; + } + + if ( sign ) + num = -num; + + *cursor = p; + + return num; + } + + + FT_LOCAL_DEF( FT_Int ) + PS_Conv_ToInt( FT_Byte** cursor, + FT_Byte* limit ) + + { + FT_Byte* p; + FT_Int num; + + + num = PS_Conv_Strtol( cursor, limit, 10 ); + p = *cursor; + + if ( p < limit && *p == '#' ) + { + *cursor = p + 1; + + return PS_Conv_Strtol( cursor, limit, num ); + } + else + return num; + } + + + FT_LOCAL_DEF( FT_Fixed ) + PS_Conv_ToFixed( FT_Byte** cursor, + FT_Byte* limit, + FT_Int power_ten ) + { + FT_Byte* p = *cursor; + FT_Fixed integral; + FT_Long decimal = 0, divider = 1; + FT_Bool sign = 0; + + + if ( p >= limit ) + return 0; + + if ( *p == '-' || *p == '+' ) + { + sign = FT_BOOL( *p == '-' ); + + p++; + if ( p == limit ) + return 0; + } + + if ( *p != '.' ) + integral = PS_Conv_ToInt( &p, limit ) << 16; + else + integral = 0; + + /* read the decimal part */ + if ( p < limit && *p == '.' ) + { + p++; + + for ( ; p < limit; p++ ) + { + FT_Char c; + + + if ( IS_PS_SPACE( *p ) || *p OP 0x80 ) + break; + + c = ft_char_table[*p & 0x7f]; + + if ( c < 0 || c >= 10 ) + break; + + if ( !integral && power_ten > 0 ) + { + power_ten--; + decimal = decimal * 10 + c; + } + else + { + if ( divider < 10000000L ) + { + decimal = decimal * 10 + c; + divider *= 10; + } + } + } + } + + /* read exponent, if any */ + if ( p + 1 < limit && ( *p == 'e' || *p == 'E' ) ) + { + p++; + power_ten += PS_Conv_ToInt( &p, limit ); + } + + while ( power_ten > 0 ) + { + integral *= 10; + decimal *= 10; + power_ten--; + } + + while ( power_ten < 0 ) + { + integral /= 10; + divider *= 10; + power_ten++; + } + + if ( decimal ) + integral += FT_DivFix( decimal, divider ); + + if ( sign ) + integral = -integral; + + *cursor = p; + + return integral; + } + + +#if 0 + FT_LOCAL_DEF( FT_UInt ) + PS_Conv_StringDecode( FT_Byte** cursor, + FT_Byte* limit, + FT_Byte* buffer, + FT_Offset n ) + { + FT_Byte* p; + FT_UInt r = 0; + + + for ( p = *cursor; r < n && p < limit; p++ ) + { + FT_Byte b; + + + if ( *p != '\\' ) + { + buffer[r++] = *p; + + continue; + } + + p++; + + switch ( *p ) + { + case 'n': + b = '\n'; + break; + case 'r': + b = '\r'; + break; + case 't': + b = '\t'; + break; + case 'b': + b = '\b'; + break; + case 'f': + b = '\f'; + break; + case '\r': + p++; + if ( *p != '\n' ) + { + b = *p; + + break; + } + /* no break */ + case '\n': + continue; + break; + default: + if ( IS_PS_DIGIT( *p ) ) + { + b = *p - '0'; + + p++; + + if ( IS_PS_DIGIT( *p ) ) + { + b = b * 8 + *p - '0'; + + p++; + + if ( IS_PS_DIGIT( *p ) ) + b = b * 8 + *p - '0'; + else + { + buffer[r++] = b; + b = *p; + } + } + else + { + buffer[r++] = b; + b = *p; + } + } + else + b = *p; + break; + } + + buffer[r++] = b; + } + + *cursor = p; + + return r; + } +#endif /* 0 */ + + + FT_LOCAL_DEF( FT_UInt ) + PS_Conv_ASCIIHexDecode( FT_Byte** cursor, + FT_Byte* limit, + FT_Byte* buffer, + FT_Offset n ) + { + FT_Byte* p; + FT_UInt r = 0; + FT_UInt w = 0; + FT_UInt pad = 0x01; + + + n *= 2; + +#if 1 + + p = *cursor; + + if ( p >= limit ) + return 0; + + if ( n > (FT_UInt)( limit - p ) ) + n = (FT_UInt)( limit - p ); + + /* we try to process two nibbles at a time to be as fast as possible */ + for ( ; r < n; r++ ) + { + FT_UInt c = p[r]; + + + if ( IS_PS_SPACE( c ) ) + continue; + + if ( c OP 0x80 ) + break; + + c = ft_char_table[c & 0x7F]; + if ( (unsigned)c >= 16 ) + break; + + pad = ( pad << 4 ) | c; + if ( pad & 0x100 ) + { + buffer[w++] = (FT_Byte)pad; + pad = 0x01; + } + } + + if ( pad != 0x01 ) + buffer[w++] = (FT_Byte)( pad << 4 ); + + *cursor = p + r; + + return w; + +#else /* 0 */ + + for ( r = 0; r < n; r++ ) + { + FT_Char c; + + + if ( IS_PS_SPACE( *p ) ) + continue; + + if ( *p OP 0x80 ) + break; + + c = ft_char_table[*p & 0x7f]; + + if ( (unsigned)c >= 16 ) + break; + + if ( r & 1 ) + { + *buffer = (FT_Byte)(*buffer + c); + buffer++; + } + else + *buffer = (FT_Byte)(c << 4); + + r++; + } + + *cursor = p; + + return ( r + 1 ) / 2; + +#endif /* 0 */ + + } + + + FT_LOCAL_DEF( FT_UInt ) + PS_Conv_EexecDecode( FT_Byte** cursor, + FT_Byte* limit, + FT_Byte* buffer, + FT_Offset n, + FT_UShort* seed ) + { + FT_Byte* p; + FT_UInt r; + FT_UInt s = *seed; + + +#if 1 + + p = *cursor; + + if ( p >= limit ) + return 0; + + if ( n > (FT_UInt)(limit - p) ) + n = (FT_UInt)(limit - p); + + for ( r = 0; r < n; r++ ) + { + FT_UInt val = p[r]; + FT_UInt b = ( val ^ ( s >> 8 ) ); + + + s = ( (val + s)*52845U + 22719 ) & 0xFFFFU; + buffer[r] = (FT_Byte) b; + } + + *cursor = p + n; + *seed = (FT_UShort)s; + +#else /* 0 */ + + for ( r = 0, p = *cursor; r < n && p < limit; r++, p++ ) + { + FT_Byte b = (FT_Byte)( *p ^ ( s >> 8 ) ); + + + s = (FT_UShort)( ( *p + s ) * 52845U + 22719 ); + *buffer++ = b; + } + *cursor = p; + *seed = s; + +#endif /* 0 */ + + return r; + } + + +/* END */ diff --git a/src/psaux/psconv.h b/src/psaux/psconv.h new file mode 100644 index 0000000..84854ba --- /dev/null +++ b/src/psaux/psconv.h @@ -0,0 +1,71 @@ +/***************************************************************************/ +/* */ +/* psconv.h */ +/* */ +/* Some convenience conversions (specification). */ +/* */ +/* Copyright 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSCONV_H__ +#define __PSCONV_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_AUX_H + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Int ) + PS_Conv_Strtol( FT_Byte** cursor, + FT_Byte* limit, + FT_Int base ); + + + FT_LOCAL( FT_Int ) + PS_Conv_ToInt( FT_Byte** cursor, + FT_Byte* limit ); + + FT_LOCAL( FT_Fixed ) + PS_Conv_ToFixed( FT_Byte** cursor, + FT_Byte* limit, + FT_Int power_ten ); + +#if 0 + FT_LOCAL( FT_UInt ) + PS_Conv_StringDecode( FT_Byte** cursor, + FT_Byte* limit, + FT_Byte* buffer, + FT_Offset n ); +#endif + + FT_LOCAL( FT_UInt ) + PS_Conv_ASCIIHexDecode( FT_Byte** cursor, + FT_Byte* limit, + FT_Byte* buffer, + FT_Offset n ); + + FT_LOCAL( FT_UInt ) + PS_Conv_EexecDecode( FT_Byte** cursor, + FT_Byte* limit, + FT_Byte* buffer, + FT_Offset n, + FT_UShort* seed ); + + +FT_END_HEADER + +#endif /* __PSCONV_H__ */ + + +/* END */ diff --git a/src/psaux/psobjs.c b/src/psaux/psobjs.c new file mode 100644 index 0000000..06df6e6 --- /dev/null +++ b/src/psaux/psobjs.c @@ -0,0 +1,1710 @@ +/***************************************************************************/ +/* */ +/* psobjs.c */ +/* */ +/* Auxiliary functions for PostScript fonts (body). */ +/* */ +/* Copyright 1996-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_AUX_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_CALC_H + +#include "psobjs.h" +#include "psconv.h" + +#include "psauxerr.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_psobjs + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PS_TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ps_table_new */ + /* */ + /* <Description> */ + /* Initializes a PS_Table. */ + /* */ + /* <InOut> */ + /* table :: The address of the target table. */ + /* */ + /* <Input> */ + /* count :: The table size = the maximum number of elements. */ + /* */ + /* memory :: The memory object to use for all subsequent */ + /* reallocations. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + ps_table_new( PS_Table table, + FT_Int count, + FT_Memory memory ) + { + FT_Error error; + + + table->memory = memory; + if ( FT_NEW_ARRAY( table->elements, count ) || + FT_NEW_ARRAY( table->lengths, count ) ) + goto Exit; + + table->max_elems = count; + table->init = 0xDEADBEEFUL; + table->num_elems = 0; + table->block = 0; + table->capacity = 0; + table->cursor = 0; + + *(PS_Table_FuncsRec*)&table->funcs = ps_table_funcs; + + Exit: + if ( error ) + FT_FREE( table->elements ); + + return error; + } + + + static void + shift_elements( PS_Table table, + FT_Byte* old_base ) + { + FT_PtrDist delta = table->block - old_base; + FT_Byte** offset = table->elements; + FT_Byte** limit = offset + table->max_elems; + + + for ( ; offset < limit; offset++ ) + { + if ( offset[0] ) + offset[0] += delta; + } + } + + + static FT_Error + reallocate_t1_table( PS_Table table, + FT_Long new_size ) + { + FT_Memory memory = table->memory; + FT_Byte* old_base = table->block; + FT_Error error; + + + /* allocate new base block */ + if ( FT_ALLOC( table->block, new_size ) ) + { + table->block = old_base; + return error; + } + + /* copy elements and shift offsets */ + if ( old_base ) + { + FT_MEM_COPY( table->block, old_base, table->capacity ); + shift_elements( table, old_base ); + FT_FREE( old_base ); + } + + table->capacity = new_size; + + return PSaux_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ps_table_add */ + /* */ + /* <Description> */ + /* Adds an object to a PS_Table, possibly growing its memory block. */ + /* */ + /* <InOut> */ + /* table :: The target table. */ + /* */ + /* <Input> */ + /* idx :: The index of the object in the table. */ + /* */ + /* object :: The address of the object to copy in memory. */ + /* */ + /* length :: The length in bytes of the source object. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. An error is returned if a */ + /* reallocation fails. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + ps_table_add( PS_Table table, + FT_Int idx, + void* object, + FT_PtrDist length ) + { + if ( idx < 0 || idx >= table->max_elems ) + { + FT_ERROR(( "ps_table_add: invalid index\n" )); + return PSaux_Err_Invalid_Argument; + } + + if ( length < 0 ) + { + FT_ERROR(( "ps_table_add: invalid length\n" )); + return PSaux_Err_Invalid_Argument; + } + + /* grow the base block if needed */ + if ( table->cursor + length > table->capacity ) + { + FT_Error error; + FT_Offset new_size = table->capacity; + FT_PtrDist in_offset; + + + in_offset = (FT_Byte*)object - table->block; + if ( in_offset < 0 || (FT_Offset)in_offset >= table->capacity ) + in_offset = -1; + + while ( new_size < table->cursor + length ) + { + /* increase size by 25% and round up to the nearest multiple + of 1024 */ + new_size += ( new_size >> 2 ) + 1; + new_size = FT_PAD_CEIL( new_size, 1024 ); + } + + error = reallocate_t1_table( table, new_size ); + if ( error ) + return error; + + if ( in_offset >= 0 ) + object = table->block + in_offset; + } + + /* add the object to the base block and adjust offset */ + table->elements[idx] = table->block + table->cursor; + table->lengths [idx] = length; + FT_MEM_COPY( table->block + table->cursor, object, length ); + + table->cursor += length; + return PSaux_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ps_table_done */ + /* */ + /* <Description> */ + /* Finalizes a PS_TableRec (i.e., reallocate it to its current */ + /* cursor). */ + /* */ + /* <InOut> */ + /* table :: The target table. */ + /* */ + /* <Note> */ + /* This function does NOT release the heap's memory block. It is up */ + /* to the caller to clean it, or reference it in its own structures. */ + /* */ + FT_LOCAL_DEF( void ) + ps_table_done( PS_Table table ) + { + FT_Memory memory = table->memory; + FT_Error error; + FT_Byte* old_base = table->block; + + + /* should never fail, because rec.cursor <= rec.size */ + if ( !old_base ) + return; + + if ( FT_ALLOC( table->block, table->cursor ) ) + return; + FT_MEM_COPY( table->block, old_base, table->cursor ); + shift_elements( table, old_base ); + + table->capacity = table->cursor; + FT_FREE( old_base ); + + FT_UNUSED( error ); + } + + + FT_LOCAL_DEF( void ) + ps_table_release( PS_Table table ) + { + FT_Memory memory = table->memory; + + + if ( (FT_ULong)table->init == 0xDEADBEEFUL ) + { + FT_FREE( table->block ); + FT_FREE( table->elements ); + FT_FREE( table->lengths ); + table->init = 0; + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 PARSER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* first character must be already part of the comment */ + + static void + skip_comment( FT_Byte* *acur, + FT_Byte* limit ) + { + FT_Byte* cur = *acur; + + + while ( cur < limit ) + { + if ( IS_PS_NEWLINE( *cur ) ) + break; + cur++; + } + + *acur = cur; + } + + + static void + skip_spaces( FT_Byte* *acur, + FT_Byte* limit ) + { + FT_Byte* cur = *acur; + + + while ( cur < limit ) + { + if ( !IS_PS_SPACE( *cur ) ) + { + if ( *cur == '%' ) + /* According to the PLRM, a comment is equal to a space. */ + skip_comment( &cur, limit ); + else + break; + } + cur++; + } + + *acur = cur; + } + + +#define IS_OCTAL_DIGIT( c ) ( '0' <= (c) && (c) <= '7' ) + + + /* first character must be `('; */ + /* *acur is positioned at the character after the closing `)' */ + + static FT_Error + skip_literal_string( FT_Byte* *acur, + FT_Byte* limit ) + { + FT_Byte* cur = *acur; + FT_Int embed = 0; + FT_Error error = PSaux_Err_Invalid_File_Format; + unsigned int i; + + + while ( cur < limit ) + { + FT_Byte c = *cur; + + + ++cur; + + if ( c == '\\' ) + { + /* Red Book 3rd ed., section `Literal Text Strings', p. 29: */ + /* A backslash can introduce three different types */ + /* of escape sequences: */ + /* - a special escaped char like \r, \n, etc. */ + /* - a one-, two-, or three-digit octal number */ + /* - none of the above in which case the backslash is ignored */ + + if ( cur == limit ) + /* error (or to be ignored?) */ + break; + + switch ( *cur ) + { + /* skip `special' escape */ + case 'n': + case 'r': + case 't': + case 'b': + case 'f': + case '\\': + case '(': + case ')': + ++cur; + break; + + default: + /* skip octal escape or ignore backslash */ + for ( i = 0; i < 3 && cur < limit; ++i ) + { + if ( !IS_OCTAL_DIGIT( *cur ) ) + break; + + ++cur; + } + } + } + else if ( c == '(' ) + embed++; + else if ( c == ')' ) + { + embed--; + if ( embed == 0 ) + { + error = PSaux_Err_Ok; + break; + } + } + } + + *acur = cur; + + return error; + } + + + /* first character must be `<' */ + + static FT_Error + skip_string( FT_Byte* *acur, + FT_Byte* limit ) + { + FT_Byte* cur = *acur; + FT_Error err = PSaux_Err_Ok; + + + while ( ++cur < limit ) + { + /* All whitespace characters are ignored. */ + skip_spaces( &cur, limit ); + if ( cur >= limit ) + break; + + if ( !IS_PS_XDIGIT( *cur ) ) + break; + } + + if ( cur < limit && *cur != '>' ) + { + FT_ERROR(( "skip_string: missing closing delimiter `>'\n" )); + err = PSaux_Err_Invalid_File_Format; + } + else + cur++; + + *acur = cur; + return err; + } + + + /* first character must be the opening brace that */ + /* starts the procedure */ + + /* NB: [ and ] need not match: */ + /* `/foo {[} def' is a valid PostScript fragment, */ + /* even within a Type1 font */ + + static FT_Error + skip_procedure( FT_Byte* *acur, + FT_Byte* limit ) + { + FT_Byte* cur; + FT_Int embed = 0; + FT_Error error = PSaux_Err_Ok; + + + FT_ASSERT( **acur == '{' ); + + for ( cur = *acur; cur < limit && error == PSaux_Err_Ok; ++cur ) + { + switch ( *cur ) + { + case '{': + ++embed; + break; + + case '}': + --embed; + if ( embed == 0 ) + { + ++cur; + goto end; + } + break; + + case '(': + error = skip_literal_string( &cur, limit ); + break; + + case '<': + error = skip_string( &cur, limit ); + break; + + case '%': + skip_comment( &cur, limit ); + break; + } + } + + end: + if ( embed != 0 ) + error = PSaux_Err_Invalid_File_Format; + + *acur = cur; + + return error; + } + + + /***********************************************************************/ + /* */ + /* All exported parsing routines handle leading whitespace and stop at */ + /* the first character which isn't part of the just handled token. */ + /* */ + /***********************************************************************/ + + + FT_LOCAL_DEF( void ) + ps_parser_skip_PS_token( PS_Parser parser ) + { + /* Note: PostScript allows any non-delimiting, non-whitespace */ + /* character in a name (PS Ref Manual, 3rd ed, p31). */ + /* PostScript delimiters are (, ), <, >, [, ], {, }, /, and %. */ + + FT_Byte* cur = parser->cursor; + FT_Byte* limit = parser->limit; + FT_Error error = PSaux_Err_Ok; + + + skip_spaces( &cur, limit ); /* this also skips comments */ + if ( cur >= limit ) + goto Exit; + + /* self-delimiting, single-character tokens */ + if ( *cur == '[' || *cur == ']' ) + { + cur++; + goto Exit; + } + + /* skip balanced expressions (procedures and strings) */ + + if ( *cur == '{' ) /* {...} */ + { + error = skip_procedure( &cur, limit ); + goto Exit; + } + + if ( *cur == '(' ) /* (...) */ + { + error = skip_literal_string( &cur, limit ); + goto Exit; + } + + if ( *cur == '<' ) /* <...> */ + { + if ( cur + 1 < limit && *(cur + 1) == '<' ) /* << */ + { + cur++; + cur++; + } + else + error = skip_string( &cur, limit ); + + goto Exit; + } + + if ( *cur == '>' ) + { + cur++; + if ( cur >= limit || *cur != '>' ) /* >> */ + { + FT_ERROR(( "ps_parser_skip_PS_token:" + " unexpected closing delimiter `>'\n" )); + error = PSaux_Err_Invalid_File_Format; + goto Exit; + } + cur++; + goto Exit; + } + + if ( *cur == '/' ) + cur++; + + /* anything else */ + while ( cur < limit ) + { + /* *cur might be invalid (e.g., ')' or '}'), but this */ + /* is handled by the test `cur == parser->cursor' below */ + if ( IS_PS_DELIM( *cur ) ) + break; + + cur++; + } + + Exit: + if ( cur < limit && cur == parser->cursor ) + { + FT_ERROR(( "ps_parser_skip_PS_token:" + " current token is `%c' which is self-delimiting\n" + " " + " but invalid at this point\n", + *cur )); + + error = PSaux_Err_Invalid_File_Format; + } + + parser->error = error; + parser->cursor = cur; + } + + + FT_LOCAL_DEF( void ) + ps_parser_skip_spaces( PS_Parser parser ) + { + skip_spaces( &parser->cursor, parser->limit ); + } + + + /* `token' here means either something between balanced delimiters */ + /* or the next token; the delimiters are not removed. */ + + FT_LOCAL_DEF( void ) + ps_parser_to_token( PS_Parser parser, + T1_Token token ) + { + FT_Byte* cur; + FT_Byte* limit; + FT_Int embed; + + + token->type = T1_TOKEN_TYPE_NONE; + token->start = 0; + token->limit = 0; + + /* first of all, skip leading whitespace */ + ps_parser_skip_spaces( parser ); + + cur = parser->cursor; + limit = parser->limit; + + if ( cur >= limit ) + return; + + switch ( *cur ) + { + /************* check for literal string *****************/ + case '(': + token->type = T1_TOKEN_TYPE_STRING; + token->start = cur; + + if ( skip_literal_string( &cur, limit ) == PSaux_Err_Ok ) + token->limit = cur; + break; + + /************* check for programs/array *****************/ + case '{': + token->type = T1_TOKEN_TYPE_ARRAY; + token->start = cur; + + if ( skip_procedure( &cur, limit ) == PSaux_Err_Ok ) + token->limit = cur; + break; + + /************* check for table/array ********************/ + /* XXX: in theory we should also look for "<<" */ + /* since this is semantically equivalent to "["; */ + /* in practice it doesn't matter (?) */ + case '[': + token->type = T1_TOKEN_TYPE_ARRAY; + embed = 1; + token->start = cur++; + + /* we need this to catch `[ ]' */ + parser->cursor = cur; + ps_parser_skip_spaces( parser ); + cur = parser->cursor; + + while ( cur < limit && !parser->error ) + { + /* XXX: this is wrong because it does not */ + /* skip comments, procedures, and strings */ + if ( *cur == '[' ) + embed++; + else if ( *cur == ']' ) + { + embed--; + if ( embed <= 0 ) + { + token->limit = ++cur; + break; + } + } + + parser->cursor = cur; + ps_parser_skip_PS_token( parser ); + /* we need this to catch `[XXX ]' */ + ps_parser_skip_spaces ( parser ); + cur = parser->cursor; + } + break; + + /* ************ otherwise, it is any token **************/ + default: + token->start = cur; + token->type = ( *cur == '/' ? T1_TOKEN_TYPE_KEY : T1_TOKEN_TYPE_ANY ); + ps_parser_skip_PS_token( parser ); + cur = parser->cursor; + if ( !parser->error ) + token->limit = cur; + } + + if ( !token->limit ) + { + token->start = 0; + token->type = T1_TOKEN_TYPE_NONE; + } + + parser->cursor = cur; + } + + + /* NB: `tokens' can be NULL if we only want to count */ + /* the number of array elements */ + + FT_LOCAL_DEF( void ) + ps_parser_to_token_array( PS_Parser parser, + T1_Token tokens, + FT_UInt max_tokens, + FT_Int* pnum_tokens ) + { + T1_TokenRec master; + + + *pnum_tokens = -1; + + /* this also handles leading whitespace */ + ps_parser_to_token( parser, &master ); + + if ( master.type == T1_TOKEN_TYPE_ARRAY ) + { + FT_Byte* old_cursor = parser->cursor; + FT_Byte* old_limit = parser->limit; + T1_Token cur = tokens; + T1_Token limit = cur + max_tokens; + + + /* don't include outermost delimiters */ + parser->cursor = master.start + 1; + parser->limit = master.limit - 1; + + while ( parser->cursor < parser->limit ) + { + T1_TokenRec token; + + + ps_parser_to_token( parser, &token ); + if ( !token.type ) + break; + + if ( tokens != NULL && cur < limit ) + *cur = token; + + cur++; + } + + *pnum_tokens = (FT_Int)( cur - tokens ); + + parser->cursor = old_cursor; + parser->limit = old_limit; + } + } + + + /* first character must be a delimiter or a part of a number */ + /* NB: `coords' can be NULL if we just want to skip the */ + /* array; in this case we ignore `max_coords' */ + + static FT_Int + ps_tocoordarray( FT_Byte* *acur, + FT_Byte* limit, + FT_Int max_coords, + FT_Short* coords ) + { + FT_Byte* cur = *acur; + FT_Int count = 0; + FT_Byte c, ender; + + + if ( cur >= limit ) + goto Exit; + + /* check for the beginning of an array; otherwise, only one number */ + /* will be read */ + c = *cur; + ender = 0; + + if ( c == '[' ) + ender = ']'; + else if ( c == '{' ) + ender = '}'; + + if ( ender ) + cur++; + + /* now, read the coordinates */ + while ( cur < limit ) + { + FT_Short dummy; + FT_Byte* old_cur; + + + /* skip whitespace in front of data */ + skip_spaces( &cur, limit ); + if ( cur >= limit ) + goto Exit; + + if ( *cur == ender ) + { + cur++; + break; + } + + old_cur = cur; + + if ( coords != NULL && count >= max_coords ) + break; + + /* call PS_Conv_ToFixed() even if coords == NULL */ + /* to properly parse number at `cur' */ + *( coords != NULL ? &coords[count] : &dummy ) = + (FT_Short)( PS_Conv_ToFixed( &cur, limit, 0 ) >> 16 ); + + if ( old_cur == cur ) + { + count = -1; + goto Exit; + } + else + count++; + + if ( !ender ) + break; + } + + Exit: + *acur = cur; + return count; + } + + + /* first character must be a delimiter or a part of a number */ + /* NB: `values' can be NULL if we just want to skip the */ + /* array; in this case we ignore `max_values' */ + + static FT_Int + ps_tofixedarray( FT_Byte* *acur, + FT_Byte* limit, + FT_Int max_values, + FT_Fixed* values, + FT_Int power_ten ) + { + FT_Byte* cur = *acur; + FT_Int count = 0; + FT_Byte c, ender; + + + if ( cur >= limit ) + goto Exit; + + /* Check for the beginning of an array. Otherwise, only one number */ + /* will be read. */ + c = *cur; + ender = 0; + + if ( c == '[' ) + ender = ']'; + else if ( c == '{' ) + ender = '}'; + + if ( ender ) + cur++; + + /* now, read the values */ + while ( cur < limit ) + { + FT_Fixed dummy; + FT_Byte* old_cur; + + + /* skip whitespace in front of data */ + skip_spaces( &cur, limit ); + if ( cur >= limit ) + goto Exit; + + if ( *cur == ender ) + { + cur++; + break; + } + + old_cur = cur; + + if ( values != NULL && count >= max_values ) + break; + + /* call PS_Conv_ToFixed() even if coords == NULL */ + /* to properly parse number at `cur' */ + *( values != NULL ? &values[count] : &dummy ) = + PS_Conv_ToFixed( &cur, limit, power_ten ); + + if ( old_cur == cur ) + { + count = -1; + goto Exit; + } + else + count++; + + if ( !ender ) + break; + } + + Exit: + *acur = cur; + return count; + } + + +#if 0 + + static FT_String* + ps_tostring( FT_Byte** cursor, + FT_Byte* limit, + FT_Memory memory ) + { + FT_Byte* cur = *cursor; + FT_PtrDist len = 0; + FT_Int count; + FT_String* result; + FT_Error error; + + + /* XXX: some stupid fonts have a `Notice' or `Copyright' string */ + /* that simply doesn't begin with an opening parenthesis, even */ + /* though they have a closing one! E.g. "amuncial.pfb" */ + /* */ + /* We must deal with these ill-fated cases there. Note that */ + /* these fonts didn't work with the old Type 1 driver as the */ + /* notice/copyright was not recognized as a valid string token */ + /* and made the old token parser commit errors. */ + + while ( cur < limit && ( *cur == ' ' || *cur == '\t' ) ) + cur++; + if ( cur + 1 >= limit ) + return 0; + + if ( *cur == '(' ) + cur++; /* skip the opening parenthesis, if there is one */ + + *cursor = cur; + count = 0; + + /* then, count its length */ + for ( ; cur < limit; cur++ ) + { + if ( *cur == '(' ) + count++; + + else if ( *cur == ')' ) + { + count--; + if ( count < 0 ) + break; + } + } + + len = cur - *cursor; + if ( cur >= limit || FT_ALLOC( result, len + 1 ) ) + return 0; + + /* now copy the string */ + FT_MEM_COPY( result, *cursor, len ); + result[len] = '\0'; + *cursor = cur; + return result; + } + +#endif /* 0 */ + + + static int + ps_tobool( FT_Byte* *acur, + FT_Byte* limit ) + { + FT_Byte* cur = *acur; + FT_Bool result = 0; + + + /* return 1 if we find `true', 0 otherwise */ + if ( cur + 3 < limit && + cur[0] == 't' && + cur[1] == 'r' && + cur[2] == 'u' && + cur[3] == 'e' ) + { + result = 1; + cur += 5; + } + else if ( cur + 4 < limit && + cur[0] == 'f' && + cur[1] == 'a' && + cur[2] == 'l' && + cur[3] == 's' && + cur[4] == 'e' ) + { + result = 0; + cur += 6; + } + + *acur = cur; + return result; + } + + + /* load a simple field (i.e. non-table) into the current list of objects */ + + FT_LOCAL_DEF( FT_Error ) + ps_parser_load_field( PS_Parser parser, + const T1_Field field, + void** objects, + FT_UInt max_objects, + FT_ULong* pflags ) + { + T1_TokenRec token; + FT_Byte* cur; + FT_Byte* limit; + FT_UInt count; + FT_UInt idx; + FT_Error error; + + + /* this also skips leading whitespace */ + ps_parser_to_token( parser, &token ); + if ( !token.type ) + goto Fail; + + count = 1; + idx = 0; + cur = token.start; + limit = token.limit; + + /* we must detect arrays in /FontBBox */ + if ( field->type == T1_FIELD_TYPE_BBOX ) + { + T1_TokenRec token2; + FT_Byte* old_cur = parser->cursor; + FT_Byte* old_limit = parser->limit; + + + /* don't include delimiters */ + parser->cursor = token.start + 1; + parser->limit = token.limit - 1; + + ps_parser_to_token( parser, &token2 ); + parser->cursor = old_cur; + parser->limit = old_limit; + + if ( token2.type == T1_TOKEN_TYPE_ARRAY ) + goto FieldArray; + } + else if ( token.type == T1_TOKEN_TYPE_ARRAY ) + { + FieldArray: + /* if this is an array and we have no blend, an error occurs */ + if ( max_objects == 0 ) + goto Fail; + + count = max_objects; + idx = 1; + + /* don't include delimiters */ + cur++; + limit--; + } + + for ( ; count > 0; count--, idx++ ) + { + FT_Byte* q = (FT_Byte*)objects[idx] + field->offset; + FT_Long val; + FT_String* string; + + + skip_spaces( &cur, limit ); + + switch ( field->type ) + { + case T1_FIELD_TYPE_BOOL: + val = ps_tobool( &cur, limit ); + goto Store_Integer; + + case T1_FIELD_TYPE_FIXED: + val = PS_Conv_ToFixed( &cur, limit, 0 ); + goto Store_Integer; + + case T1_FIELD_TYPE_FIXED_1000: + val = PS_Conv_ToFixed( &cur, limit, 3 ); + goto Store_Integer; + + case T1_FIELD_TYPE_INTEGER: + val = PS_Conv_ToInt( &cur, limit ); + /* fall through */ + + Store_Integer: + switch ( field->size ) + { + case (8 / FT_CHAR_BIT): + *(FT_Byte*)q = (FT_Byte)val; + break; + + case (16 / FT_CHAR_BIT): + *(FT_UShort*)q = (FT_UShort)val; + break; + + case (32 / FT_CHAR_BIT): + *(FT_UInt32*)q = (FT_UInt32)val; + break; + + default: /* for 64-bit systems */ + *(FT_Long*)q = val; + } + break; + + case T1_FIELD_TYPE_STRING: + case T1_FIELD_TYPE_KEY: + { + FT_Memory memory = parser->memory; + FT_UInt len = (FT_UInt)( limit - cur ); + + + if ( cur >= limit ) + break; + + /* we allow both a string or a name */ + /* for cases like /FontName (foo) def */ + if ( token.type == T1_TOKEN_TYPE_KEY ) + { + /* don't include leading `/' */ + len--; + cur++; + } + else if ( token.type == T1_TOKEN_TYPE_STRING ) + { + /* don't include delimiting parentheses */ + /* XXX we don't handle <<...>> here */ + /* XXX should we convert octal escapes? */ + /* if so, what encoding should we use? */ + cur++; + len -= 2; + } + else + { + FT_ERROR(( "ps_parser_load_field:" + " expected a name or string\n" + " " + " but found token of type %d instead\n", + token.type )); + error = PSaux_Err_Invalid_File_Format; + goto Exit; + } + + /* for this to work (FT_String**)q must have been */ + /* initialized to NULL */ + if ( *(FT_String**)q != NULL ) + { + FT_TRACE0(( "ps_parser_load_field: overwriting field %s\n", + field->ident )); + FT_FREE( *(FT_String**)q ); + *(FT_String**)q = NULL; + } + + if ( FT_ALLOC( string, len + 1 ) ) + goto Exit; + + FT_MEM_COPY( string, cur, len ); + string[len] = 0; + + *(FT_String**)q = string; + } + break; + + case T1_FIELD_TYPE_BBOX: + { + FT_Fixed temp[4]; + FT_BBox* bbox = (FT_BBox*)q; + FT_Int result; + + + result = ps_tofixedarray( &cur, limit, 4, temp, 0 ); + + if ( result < 0 ) + { + FT_ERROR(( "ps_parser_load_field:" + " expected four integers in bounding box\n" )); + error = PSaux_Err_Invalid_File_Format; + goto Exit; + } + + bbox->xMin = FT_RoundFix( temp[0] ); + bbox->yMin = FT_RoundFix( temp[1] ); + bbox->xMax = FT_RoundFix( temp[2] ); + bbox->yMax = FT_RoundFix( temp[3] ); + } + break; + + default: + /* an error occurred */ + goto Fail; + } + } + +#if 0 /* obsolete -- keep for reference */ + if ( pflags ) + *pflags |= 1L << field->flag_bit; +#else + FT_UNUSED( pflags ); +#endif + + error = PSaux_Err_Ok; + + Exit: + return error; + + Fail: + error = PSaux_Err_Invalid_File_Format; + goto Exit; + } + + +#define T1_MAX_TABLE_ELEMENTS 32 + + + FT_LOCAL_DEF( FT_Error ) + ps_parser_load_field_table( PS_Parser parser, + const T1_Field field, + void** objects, + FT_UInt max_objects, + FT_ULong* pflags ) + { + T1_TokenRec elements[T1_MAX_TABLE_ELEMENTS]; + T1_Token token; + FT_Int num_elements; + FT_Error error = PSaux_Err_Ok; + FT_Byte* old_cursor; + FT_Byte* old_limit; + T1_FieldRec fieldrec = *(T1_Field)field; + + + fieldrec.type = T1_FIELD_TYPE_INTEGER; + if ( field->type == T1_FIELD_TYPE_FIXED_ARRAY || + field->type == T1_FIELD_TYPE_BBOX ) + fieldrec.type = T1_FIELD_TYPE_FIXED; + + ps_parser_to_token_array( parser, elements, + T1_MAX_TABLE_ELEMENTS, &num_elements ); + if ( num_elements < 0 ) + { + error = PSaux_Err_Ignore; + goto Exit; + } + if ( (FT_UInt)num_elements > field->array_max ) + num_elements = field->array_max; + + old_cursor = parser->cursor; + old_limit = parser->limit; + + /* we store the elements count if necessary; */ + /* we further assume that `count_offset' can't be zero */ + if ( field->type != T1_FIELD_TYPE_BBOX && field->count_offset != 0 ) + *(FT_Byte*)( (FT_Byte*)objects[0] + field->count_offset ) = + (FT_Byte)num_elements; + + /* we now load each element, adjusting the field.offset on each one */ + token = elements; + for ( ; num_elements > 0; num_elements--, token++ ) + { + parser->cursor = token->start; + parser->limit = token->limit; + ps_parser_load_field( parser, &fieldrec, objects, max_objects, 0 ); + fieldrec.offset += fieldrec.size; + } + +#if 0 /* obsolete -- keep for reference */ + if ( pflags ) + *pflags |= 1L << field->flag_bit; +#else + FT_UNUSED( pflags ); +#endif + + parser->cursor = old_cursor; + parser->limit = old_limit; + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Long ) + ps_parser_to_int( PS_Parser parser ) + { + ps_parser_skip_spaces( parser ); + return PS_Conv_ToInt( &parser->cursor, parser->limit ); + } + + + /* first character must be `<' if `delimiters' is non-zero */ + + FT_LOCAL_DEF( FT_Error ) + ps_parser_to_bytes( PS_Parser parser, + FT_Byte* bytes, + FT_Offset max_bytes, + FT_Long* pnum_bytes, + FT_Bool delimiters ) + { + FT_Error error = PSaux_Err_Ok; + FT_Byte* cur; + + + ps_parser_skip_spaces( parser ); + cur = parser->cursor; + + if ( cur >= parser->limit ) + goto Exit; + + if ( delimiters ) + { + if ( *cur != '<' ) + { + FT_ERROR(( "ps_parser_to_bytes: Missing starting delimiter `<'\n" )); + error = PSaux_Err_Invalid_File_Format; + goto Exit; + } + + cur++; + } + + *pnum_bytes = PS_Conv_ASCIIHexDecode( &cur, + parser->limit, + bytes, + max_bytes ); + + if ( delimiters ) + { + if ( cur < parser->limit && *cur != '>' ) + { + FT_ERROR(( "ps_parser_to_bytes: Missing closing delimiter `>'\n" )); + error = PSaux_Err_Invalid_File_Format; + goto Exit; + } + + cur++; + } + + parser->cursor = cur; + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Fixed ) + ps_parser_to_fixed( PS_Parser parser, + FT_Int power_ten ) + { + ps_parser_skip_spaces( parser ); + return PS_Conv_ToFixed( &parser->cursor, parser->limit, power_ten ); + } + + + FT_LOCAL_DEF( FT_Int ) + ps_parser_to_coord_array( PS_Parser parser, + FT_Int max_coords, + FT_Short* coords ) + { + ps_parser_skip_spaces( parser ); + return ps_tocoordarray( &parser->cursor, parser->limit, + max_coords, coords ); + } + + + FT_LOCAL_DEF( FT_Int ) + ps_parser_to_fixed_array( PS_Parser parser, + FT_Int max_values, + FT_Fixed* values, + FT_Int power_ten ) + { + ps_parser_skip_spaces( parser ); + return ps_tofixedarray( &parser->cursor, parser->limit, + max_values, values, power_ten ); + } + + +#if 0 + + FT_LOCAL_DEF( FT_String* ) + T1_ToString( PS_Parser parser ) + { + return ps_tostring( &parser->cursor, parser->limit, parser->memory ); + } + + + FT_LOCAL_DEF( FT_Bool ) + T1_ToBool( PS_Parser parser ) + { + return ps_tobool( &parser->cursor, parser->limit ); + } + +#endif /* 0 */ + + + FT_LOCAL_DEF( void ) + ps_parser_init( PS_Parser parser, + FT_Byte* base, + FT_Byte* limit, + FT_Memory memory ) + { + parser->error = PSaux_Err_Ok; + parser->base = base; + parser->limit = limit; + parser->cursor = base; + parser->memory = memory; + parser->funcs = ps_parser_funcs; + } + + + FT_LOCAL_DEF( void ) + ps_parser_done( PS_Parser parser ) + { + FT_UNUSED( parser ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 BUILDER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* <Function> */ + /* t1_builder_init */ + /* */ + /* <Description> */ + /* Initializes a given glyph builder. */ + /* */ + /* <InOut> */ + /* builder :: A pointer to the glyph builder to initialize. */ + /* */ + /* <Input> */ + /* face :: The current face object. */ + /* */ + /* size :: The current size object. */ + /* */ + /* glyph :: The current glyph object. */ + /* */ + /* hinting :: Whether hinting should be applied. */ + /* */ + FT_LOCAL_DEF( void ) + t1_builder_init( T1_Builder builder, + FT_Face face, + FT_Size size, + FT_GlyphSlot glyph, + FT_Bool hinting ) + { + builder->parse_state = T1_Parse_Start; + builder->load_points = 1; + + builder->face = face; + builder->glyph = glyph; + builder->memory = face->memory; + + if ( glyph ) + { + FT_GlyphLoader loader = glyph->internal->loader; + + + builder->loader = loader; + builder->base = &loader->base.outline; + builder->current = &loader->current.outline; + FT_GlyphLoader_Rewind( loader ); + + builder->hints_globals = size->internal; + builder->hints_funcs = 0; + + if ( hinting ) + builder->hints_funcs = glyph->internal->glyph_hints; + } + + builder->pos_x = 0; + builder->pos_y = 0; + + builder->left_bearing.x = 0; + builder->left_bearing.y = 0; + builder->advance.x = 0; + builder->advance.y = 0; + + builder->funcs = t1_builder_funcs; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* t1_builder_done */ + /* */ + /* <Description> */ + /* Finalizes a given glyph builder. Its contents can still be used */ + /* after the call, but the function saves important information */ + /* within the corresponding glyph slot. */ + /* */ + /* <Input> */ + /* builder :: A pointer to the glyph builder to finalize. */ + /* */ + FT_LOCAL_DEF( void ) + t1_builder_done( T1_Builder builder ) + { + FT_GlyphSlot glyph = builder->glyph; + + + if ( glyph ) + glyph->outline = *builder->base; + } + + + /* check that there is enough space for `count' more points */ + FT_LOCAL_DEF( FT_Error ) + t1_builder_check_points( T1_Builder builder, + FT_Int count ) + { + return FT_GLYPHLOADER_CHECK_POINTS( builder->loader, count, 0 ); + } + + + /* add a new point, do not check space */ + FT_LOCAL_DEF( void ) + t1_builder_add_point( T1_Builder builder, + FT_Pos x, + FT_Pos y, + FT_Byte flag ) + { + FT_Outline* outline = builder->current; + + + if ( builder->load_points ) + { + FT_Vector* point = outline->points + outline->n_points; + FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points; + + + point->x = FIXED_TO_INT( x ); + point->y = FIXED_TO_INT( y ); + *control = (FT_Byte)( flag ? FT_CURVE_TAG_ON : FT_CURVE_TAG_CUBIC ); + } + outline->n_points++; + } + + + /* check space for a new on-curve point, then add it */ + FT_LOCAL_DEF( FT_Error ) + t1_builder_add_point1( T1_Builder builder, + FT_Pos x, + FT_Pos y ) + { + FT_Error error; + + + error = t1_builder_check_points( builder, 1 ); + if ( !error ) + t1_builder_add_point( builder, x, y, 1 ); + + return error; + } + + + /* check space for a new contour, then add it */ + FT_LOCAL_DEF( FT_Error ) + t1_builder_add_contour( T1_Builder builder ) + { + FT_Outline* outline = builder->current; + FT_Error error; + + + /* this might happen in invalid fonts */ + if ( !outline ) + { + FT_ERROR(( "t1_builder_add_contour: no outline to add points to\n" )); + return PSaux_Err_Invalid_File_Format; + } + + if ( !builder->load_points ) + { + outline->n_contours++; + return PSaux_Err_Ok; + } + + error = FT_GLYPHLOADER_CHECK_POINTS( builder->loader, 0, 1 ); + if ( !error ) + { + if ( outline->n_contours > 0 ) + outline->contours[outline->n_contours - 1] = + (short)( outline->n_points - 1 ); + + outline->n_contours++; + } + + return error; + } + + + /* if a path was begun, add its first on-curve point */ + FT_LOCAL_DEF( FT_Error ) + t1_builder_start_point( T1_Builder builder, + FT_Pos x, + FT_Pos y ) + { + FT_Error error = PSaux_Err_Invalid_File_Format; + + + /* test whether we are building a new contour */ + + if ( builder->parse_state == T1_Parse_Have_Path ) + error = PSaux_Err_Ok; + else + { + builder->parse_state = T1_Parse_Have_Path; + error = t1_builder_add_contour( builder ); + if ( !error ) + error = t1_builder_add_point1( builder, x, y ); + } + + return error; + } + + + /* close the current contour */ + FT_LOCAL_DEF( void ) + t1_builder_close_contour( T1_Builder builder ) + { + FT_Outline* outline = builder->current; + FT_Int first; + + + if ( !outline ) + return; + + first = outline->n_contours <= 1 + ? 0 : outline->contours[outline->n_contours - 2] + 1; + + /* We must not include the last point in the path if it */ + /* is located on the first point. */ + if ( outline->n_points > 1 ) + { + FT_Vector* p1 = outline->points + first; + FT_Vector* p2 = outline->points + outline->n_points - 1; + FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points - 1; + + + /* `delete' last point only if it coincides with the first */ + /* point and it is not a control point (which can happen). */ + if ( p1->x == p2->x && p1->y == p2->y ) + if ( *control == FT_CURVE_TAG_ON ) + outline->n_points--; + } + + if ( outline->n_contours > 0 ) + { + /* Don't add contours only consisting of one point, i.e., */ + /* check whether the first and the last point is the same. */ + if ( first == outline->n_points - 1 ) + { + outline->n_contours--; + outline->n_points--; + } + else + outline->contours[outline->n_contours - 1] = + (short)( outline->n_points - 1 ); + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** OTHER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + t1_decrypt( FT_Byte* buffer, + FT_Offset length, + FT_UShort seed ) + { + PS_Conv_EexecDecode( &buffer, + buffer + length, + buffer, + length, + &seed ); + } + + +/* END */ diff --git a/src/psaux/psobjs.h b/src/psaux/psobjs.h new file mode 100644 index 0000000..e380c60 --- /dev/null +++ b/src/psaux/psobjs.h @@ -0,0 +1,212 @@ +/***************************************************************************/ +/* */ +/* psobjs.h */ +/* */ +/* Auxiliary functions for PostScript fonts (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSOBJS_H__ +#define __PSOBJS_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1_TABLE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_CALLBACK_TABLE + const PS_Table_FuncsRec ps_table_funcs; + + FT_CALLBACK_TABLE + const PS_Parser_FuncsRec ps_parser_funcs; + + FT_CALLBACK_TABLE + const T1_Builder_FuncsRec t1_builder_funcs; + + + FT_LOCAL( FT_Error ) + ps_table_new( PS_Table table, + FT_Int count, + FT_Memory memory ); + + FT_LOCAL( FT_Error ) + ps_table_add( PS_Table table, + FT_Int idx, + void* object, + FT_PtrDist length ); + + FT_LOCAL( void ) + ps_table_done( PS_Table table ); + + + FT_LOCAL( void ) + ps_table_release( PS_Table table ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 PARSER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL( void ) + ps_parser_skip_spaces( PS_Parser parser ); + + FT_LOCAL( void ) + ps_parser_skip_PS_token( PS_Parser parser ); + + FT_LOCAL( void ) + ps_parser_to_token( PS_Parser parser, + T1_Token token ); + + FT_LOCAL( void ) + ps_parser_to_token_array( PS_Parser parser, + T1_Token tokens, + FT_UInt max_tokens, + FT_Int* pnum_tokens ); + + FT_LOCAL( FT_Error ) + ps_parser_load_field( PS_Parser parser, + const T1_Field field, + void** objects, + FT_UInt max_objects, + FT_ULong* pflags ); + + FT_LOCAL( FT_Error ) + ps_parser_load_field_table( PS_Parser parser, + const T1_Field field, + void** objects, + FT_UInt max_objects, + FT_ULong* pflags ); + + FT_LOCAL( FT_Long ) + ps_parser_to_int( PS_Parser parser ); + + + FT_LOCAL( FT_Error ) + ps_parser_to_bytes( PS_Parser parser, + FT_Byte* bytes, + FT_Offset max_bytes, + FT_Long* pnum_bytes, + FT_Bool delimiters ); + + + FT_LOCAL( FT_Fixed ) + ps_parser_to_fixed( PS_Parser parser, + FT_Int power_ten ); + + + FT_LOCAL( FT_Int ) + ps_parser_to_coord_array( PS_Parser parser, + FT_Int max_coords, + FT_Short* coords ); + + FT_LOCAL( FT_Int ) + ps_parser_to_fixed_array( PS_Parser parser, + FT_Int max_values, + FT_Fixed* values, + FT_Int power_ten ); + + + FT_LOCAL( void ) + ps_parser_init( PS_Parser parser, + FT_Byte* base, + FT_Byte* limit, + FT_Memory memory ); + + FT_LOCAL( void ) + ps_parser_done( PS_Parser parser ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** T1 BUILDER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + t1_builder_init( T1_Builder builder, + FT_Face face, + FT_Size size, + FT_GlyphSlot glyph, + FT_Bool hinting ); + + FT_LOCAL( void ) + t1_builder_done( T1_Builder builder ); + + FT_LOCAL( FT_Error ) + t1_builder_check_points( T1_Builder builder, + FT_Int count ); + + FT_LOCAL( void ) + t1_builder_add_point( T1_Builder builder, + FT_Pos x, + FT_Pos y, + FT_Byte flag ); + + FT_LOCAL( FT_Error ) + t1_builder_add_point1( T1_Builder builder, + FT_Pos x, + FT_Pos y ); + + FT_LOCAL( FT_Error ) + t1_builder_add_contour( T1_Builder builder ); + + + FT_LOCAL( FT_Error ) + t1_builder_start_point( T1_Builder builder, + FT_Pos x, + FT_Pos y ); + + + FT_LOCAL( void ) + t1_builder_close_contour( T1_Builder builder ); + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** OTHER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_LOCAL( void ) + t1_decrypt( FT_Byte* buffer, + FT_Offset length, + FT_UShort seed ); + + +FT_END_HEADER + +#endif /* __PSOBJS_H__ */ + + +/* END */ diff --git a/src/psaux/rules.mk b/src/psaux/rules.mk new file mode 100644 index 0000000..7a1be37 --- /dev/null +++ b/src/psaux/rules.mk @@ -0,0 +1,73 @@ +# +# FreeType 2 PSaux driver configuration rules +# + + +# Copyright 1996-2000, 2002, 2003, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# PSAUX driver directory +# +PSAUX_DIR := $(SRC_DIR)/psaux + + +# compilation flags for the driver +# +PSAUX_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(PSAUX_DIR)) + + +# PSAUX driver sources (i.e., C files) +# +PSAUX_DRV_SRC := $(PSAUX_DIR)/psobjs.c \ + $(PSAUX_DIR)/t1decode.c \ + $(PSAUX_DIR)/t1cmap.c \ + $(PSAUX_DIR)/afmparse.c \ + $(PSAUX_DIR)/psconv.c \ + $(PSAUX_DIR)/psauxmod.c + +# PSAUX driver headers +# +PSAUX_DRV_H := $(PSAUX_DRV_SRC:%c=%h) \ + $(PSAUX_DIR)/psauxerr.h + + +# PSAUX driver object(s) +# +# PSAUX_DRV_OBJ_M is used during `multi' builds. +# PSAUX_DRV_OBJ_S is used during `single' builds. +# +PSAUX_DRV_OBJ_M := $(PSAUX_DRV_SRC:$(PSAUX_DIR)/%.c=$(OBJ_DIR)/%.$O) +PSAUX_DRV_OBJ_S := $(OBJ_DIR)/psaux.$O + +# PSAUX driver source file for single build +# +PSAUX_DRV_SRC_S := $(PSAUX_DIR)/psaux.c + + +# PSAUX driver - single object +# +$(PSAUX_DRV_OBJ_S): $(PSAUX_DRV_SRC_S) $(PSAUX_DRV_SRC) \ + $(FREETYPE_H) $(PSAUX_DRV_H) + $(PSAUX_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(PSAUX_DRV_SRC_S)) + + +# PSAUX driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(PSAUX_DIR)/%.c $(FREETYPE_H) $(PSAUX_DRV_H) + $(PSAUX_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(PSAUX_DRV_OBJ_S) +DRV_OBJS_M += $(PSAUX_DRV_OBJ_M) + + +# EOF diff --git a/src/psaux/t1cmap.c b/src/psaux/t1cmap.c new file mode 100644 index 0000000..9e5bd34 --- /dev/null +++ b/src/psaux/t1cmap.c @@ -0,0 +1,341 @@ +/***************************************************************************/ +/* */ +/* t1cmap.c */ +/* */ +/* Type 1 character map support (body). */ +/* */ +/* Copyright 2002, 2003, 2006, 2007, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "t1cmap.h" + +#include FT_INTERNAL_DEBUG_H + +#include "psauxerr.h" + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 STANDARD (AND EXPERT) ENCODING CMAPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + t1_cmap_std_init( T1_CMapStd cmap, + FT_Int is_expert ) + { + T1_Face face = (T1_Face)FT_CMAP_FACE( cmap ); + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames; + + + cmap->num_glyphs = face->type1.num_glyphs; + cmap->glyph_names = (const char* const*)face->type1.glyph_names; + cmap->sid_to_string = psnames->adobe_std_strings; + cmap->code_to_sid = is_expert ? psnames->adobe_expert_encoding + : psnames->adobe_std_encoding; + + FT_ASSERT( cmap->code_to_sid != NULL ); + } + + + FT_CALLBACK_DEF( void ) + t1_cmap_std_done( T1_CMapStd cmap ) + { + cmap->num_glyphs = 0; + cmap->glyph_names = NULL; + cmap->sid_to_string = NULL; + cmap->code_to_sid = NULL; + } + + + FT_CALLBACK_DEF( FT_UInt ) + t1_cmap_std_char_index( T1_CMapStd cmap, + FT_UInt32 char_code ) + { + FT_UInt result = 0; + + + if ( char_code < 256 ) + { + FT_UInt code, n; + const char* glyph_name; + + + /* convert character code to Adobe SID string */ + code = cmap->code_to_sid[char_code]; + glyph_name = cmap->sid_to_string( code ); + + /* look for the corresponding glyph name */ + for ( n = 0; n < cmap->num_glyphs; n++ ) + { + const char* gname = cmap->glyph_names[n]; + + + if ( gname && gname[0] == glyph_name[0] && + ft_strcmp( gname, glyph_name ) == 0 ) + { + result = n; + break; + } + } + } + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + t1_cmap_std_char_next( T1_CMapStd cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt result = 0; + FT_UInt32 char_code = *pchar_code + 1; + + + while ( char_code < 256 ) + { + result = t1_cmap_std_char_index( cmap, char_code ); + if ( result != 0 ) + goto Exit; + + char_code++; + } + char_code = 0; + + Exit: + *pchar_code = char_code; + return result; + } + + + FT_CALLBACK_DEF( FT_Error ) + t1_cmap_standard_init( T1_CMapStd cmap ) + { + t1_cmap_std_init( cmap, 0 ); + return 0; + } + + + FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec + t1_cmap_standard_class_rec = + { + sizeof ( T1_CMapStdRec ), + + (FT_CMap_InitFunc) t1_cmap_standard_init, + (FT_CMap_DoneFunc) t1_cmap_std_done, + (FT_CMap_CharIndexFunc)t1_cmap_std_char_index, + (FT_CMap_CharNextFunc) t1_cmap_std_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + + FT_CALLBACK_DEF( FT_Error ) + t1_cmap_expert_init( T1_CMapStd cmap ) + { + t1_cmap_std_init( cmap, 1 ); + return 0; + } + + FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec + t1_cmap_expert_class_rec = + { + sizeof ( T1_CMapStdRec ), + + (FT_CMap_InitFunc) t1_cmap_expert_init, + (FT_CMap_DoneFunc) t1_cmap_std_done, + (FT_CMap_CharIndexFunc)t1_cmap_std_char_index, + (FT_CMap_CharNextFunc) t1_cmap_std_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 CUSTOM ENCODING CMAP *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_CALLBACK_DEF( FT_Error ) + t1_cmap_custom_init( T1_CMapCustom cmap ) + { + T1_Face face = (T1_Face)FT_CMAP_FACE( cmap ); + T1_Encoding encoding = &face->type1.encoding; + + + cmap->first = encoding->code_first; + cmap->count = (FT_UInt)( encoding->code_last - cmap->first ); + cmap->indices = encoding->char_index; + + FT_ASSERT( cmap->indices != NULL ); + FT_ASSERT( encoding->code_first <= encoding->code_last ); + + return 0; + } + + + FT_CALLBACK_DEF( void ) + t1_cmap_custom_done( T1_CMapCustom cmap ) + { + cmap->indices = NULL; + cmap->first = 0; + cmap->count = 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + t1_cmap_custom_char_index( T1_CMapCustom cmap, + FT_UInt32 char_code ) + { + FT_UInt result = 0; + + + if ( ( char_code >= cmap->first ) && + ( char_code < ( cmap->first + cmap->count ) ) ) + result = cmap->indices[char_code]; + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + t1_cmap_custom_char_next( T1_CMapCustom cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt result = 0; + FT_UInt32 char_code = *pchar_code; + + + ++char_code; + + if ( char_code < cmap->first ) + char_code = cmap->first; + + for ( ; char_code < ( cmap->first + cmap->count ); char_code++ ) + { + result = cmap->indices[char_code]; + if ( result != 0 ) + goto Exit; + } + + char_code = 0; + + Exit: + *pchar_code = char_code; + return result; + } + + + FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec + t1_cmap_custom_class_rec = + { + sizeof ( T1_CMapCustomRec ), + + (FT_CMap_InitFunc) t1_cmap_custom_init, + (FT_CMap_DoneFunc) t1_cmap_custom_done, + (FT_CMap_CharIndexFunc)t1_cmap_custom_char_index, + (FT_CMap_CharNextFunc) t1_cmap_custom_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 SYNTHETIC UNICODE ENCODING CMAP *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_CALLBACK_DEF( const char * ) + psaux_get_glyph_name( T1_Face face, + FT_UInt idx ) + { + return face->type1.glyph_names[idx]; + } + + + FT_CALLBACK_DEF( FT_Error ) + t1_cmap_unicode_init( PS_Unicodes unicodes ) + { + T1_Face face = (T1_Face)FT_CMAP_FACE( unicodes ); + FT_Memory memory = FT_FACE_MEMORY( face ); + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames; + + + return psnames->unicodes_init( memory, + unicodes, + face->type1.num_glyphs, + (PS_GetGlyphNameFunc)&psaux_get_glyph_name, + (PS_FreeGlyphNameFunc)NULL, + (FT_Pointer)face ); + } + + + FT_CALLBACK_DEF( void ) + t1_cmap_unicode_done( PS_Unicodes unicodes ) + { + FT_Face face = FT_CMAP_FACE( unicodes ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + FT_FREE( unicodes->maps ); + unicodes->num_maps = 0; + } + + + FT_CALLBACK_DEF( FT_UInt ) + t1_cmap_unicode_char_index( PS_Unicodes unicodes, + FT_UInt32 char_code ) + { + T1_Face face = (T1_Face)FT_CMAP_FACE( unicodes ); + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames; + + + return psnames->unicodes_char_index( unicodes, char_code ); + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + t1_cmap_unicode_char_next( PS_Unicodes unicodes, + FT_UInt32 *pchar_code ) + { + T1_Face face = (T1_Face)FT_CMAP_FACE( unicodes ); + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)face->psnames; + + + return psnames->unicodes_char_next( unicodes, pchar_code ); + } + + + FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec + t1_cmap_unicode_class_rec = + { + sizeof ( PS_UnicodesRec ), + + (FT_CMap_InitFunc) t1_cmap_unicode_init, + (FT_CMap_DoneFunc) t1_cmap_unicode_done, + (FT_CMap_CharIndexFunc)t1_cmap_unicode_char_index, + (FT_CMap_CharNextFunc) t1_cmap_unicode_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + +/* END */ diff --git a/src/psaux/t1cmap.h b/src/psaux/t1cmap.h new file mode 100644 index 0000000..7ae65d2 --- /dev/null +++ b/src/psaux/t1cmap.h @@ -0,0 +1,105 @@ +/***************************************************************************/ +/* */ +/* t1cmap.h */ +/* */ +/* Type 1 character map support (specification). */ +/* */ +/* Copyright 2002, 2003, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1CMAP_H__ +#define __T1CMAP_H__ + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_TYPE1_TYPES_H + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 STANDARD (AND EXPERT) ENCODING CMAPS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* standard (and expert) encoding cmaps */ + typedef struct T1_CMapStdRec_* T1_CMapStd; + + typedef struct T1_CMapStdRec_ + { + FT_CMapRec cmap; + + const FT_UShort* code_to_sid; + PS_Adobe_Std_StringsFunc sid_to_string; + + FT_UInt num_glyphs; + const char* const* glyph_names; + + } T1_CMapStdRec; + + + FT_CALLBACK_TABLE const FT_CMap_ClassRec + t1_cmap_standard_class_rec; + + FT_CALLBACK_TABLE const FT_CMap_ClassRec + t1_cmap_expert_class_rec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 CUSTOM ENCODING CMAP *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + typedef struct T1_CMapCustomRec_* T1_CMapCustom; + + typedef struct T1_CMapCustomRec_ + { + FT_CMapRec cmap; + FT_UInt first; + FT_UInt count; + FT_UShort* indices; + + } T1_CMapCustomRec; + + + FT_CALLBACK_TABLE const FT_CMap_ClassRec + t1_cmap_custom_class_rec; + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE1 SYNTHETIC UNICODE ENCODING CMAP *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* unicode (synthetic) cmaps */ + + FT_CALLBACK_TABLE const FT_CMap_ClassRec + t1_cmap_unicode_class_rec; + + /* */ + + +FT_END_HEADER + +#endif /* __T1CMAP_H__ */ + + +/* END */ diff --git a/src/psaux/t1decode.c b/src/psaux/t1decode.c new file mode 100644 index 0000000..ea67841 --- /dev/null +++ b/src/psaux/t1decode.c @@ -0,0 +1,1614 @@ +/***************************************************************************/ +/* */ +/* t1decode.c */ +/* */ +/* PostScript Type 1 decoding routines (body). */ +/* */ +/* Copyright 2000-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H +#include FT_OUTLINE_H + +#include "t1decode.h" +#include "psobjs.h" + +#include "psauxerr.h" + +/* ensure proper sign extension */ +#define Fix2Int( f ) ( (FT_Int)(FT_Short)( (f) >> 16 ) ) + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1decode + + + typedef enum T1_Operator_ + { + op_none = 0, + op_endchar, + op_hsbw, + op_seac, + op_sbw, + op_closepath, + op_hlineto, + op_hmoveto, + op_hvcurveto, + op_rlineto, + op_rmoveto, + op_rrcurveto, + op_vhcurveto, + op_vlineto, + op_vmoveto, + op_dotsection, + op_hstem, + op_hstem3, + op_vstem, + op_vstem3, + op_div, + op_callothersubr, + op_callsubr, + op_pop, + op_return, + op_setcurrentpoint, + op_unknown15, + + op_max /* never remove this one */ + + } T1_Operator; + + + static + const FT_Int t1_args_count[op_max] = + { + 0, /* none */ + 0, /* endchar */ + 2, /* hsbw */ + 5, /* seac */ + 4, /* sbw */ + 0, /* closepath */ + 1, /* hlineto */ + 1, /* hmoveto */ + 4, /* hvcurveto */ + 2, /* rlineto */ + 2, /* rmoveto */ + 6, /* rrcurveto */ + 4, /* vhcurveto */ + 1, /* vlineto */ + 1, /* vmoveto */ + 0, /* dotsection */ + 2, /* hstem */ + 6, /* hstem3 */ + 2, /* vstem */ + 6, /* vstem3 */ + 2, /* div */ + -1, /* callothersubr */ + 1, /* callsubr */ + 0, /* pop */ + 0, /* return */ + 2, /* setcurrentpoint */ + 2 /* opcode 15 (undocumented and obsolete) */ + }; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* t1_lookup_glyph_by_stdcharcode */ + /* */ + /* <Description> */ + /* Looks up a given glyph by its StandardEncoding charcode. Used to */ + /* implement the SEAC Type 1 operator. */ + /* */ + /* <Input> */ + /* face :: The current face object. */ + /* */ + /* charcode :: The character code to look for. */ + /* */ + /* <Return> */ + /* A glyph index in the font face. Returns -1 if the corresponding */ + /* glyph wasn't found. */ + /* */ + static FT_Int + t1_lookup_glyph_by_stdcharcode( T1_Decoder decoder, + FT_Int charcode ) + { + FT_UInt n; + const FT_String* glyph_name; + FT_Service_PsCMaps psnames = decoder->psnames; + + + /* check range of standard char code */ + if ( charcode < 0 || charcode > 255 ) + return -1; + + glyph_name = psnames->adobe_std_strings( + psnames->adobe_std_encoding[charcode]); + + for ( n = 0; n < decoder->num_glyphs; n++ ) + { + FT_String* name = (FT_String*)decoder->glyph_names[n]; + + + if ( name && + name[0] == glyph_name[0] && + ft_strcmp( name, glyph_name ) == 0 ) + return n; + } + + return -1; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* t1operator_seac */ + /* */ + /* <Description> */ + /* Implements the `seac' Type 1 operator for a Type 1 decoder. */ + /* */ + /* <Input> */ + /* decoder :: The current CID decoder. */ + /* */ + /* asb :: The accent's side bearing. */ + /* */ + /* adx :: The horizontal offset of the accent. */ + /* */ + /* ady :: The vertical offset of the accent. */ + /* */ + /* bchar :: The base character's StandardEncoding charcode. */ + /* */ + /* achar :: The accent character's StandardEncoding charcode. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + t1operator_seac( T1_Decoder decoder, + FT_Pos asb, + FT_Pos adx, + FT_Pos ady, + FT_Int bchar, + FT_Int achar ) + { + FT_Error error; + FT_Int bchar_index, achar_index; +#if 0 + FT_Int n_base_points; + FT_Outline* base = decoder->builder.base; +#endif + FT_Vector left_bearing, advance; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + T1_Face face = (T1_Face)decoder->builder.face; +#endif + + + if ( decoder->seac ) + { + FT_ERROR(( "t1operator_seac: invalid nested seac\n" )); + return PSaux_Err_Syntax_Error; + } + + /* seac weirdness */ + adx += decoder->builder.left_bearing.x; + + /* `glyph_names' is set to 0 for CID fonts which do not */ + /* include an encoding. How can we deal with these? */ +#ifdef FT_CONFIG_OPTION_INCREMENTAL + if ( decoder->glyph_names == 0 && + !face->root.internal->incremental_interface ) +#else + if ( decoder->glyph_names == 0 ) +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + { + FT_ERROR(( "t1operator_seac:" + " glyph names table not available in this font\n" )); + return PSaux_Err_Syntax_Error; + } + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + if ( face->root.internal->incremental_interface ) + { + /* the caller must handle the font encoding also */ + bchar_index = bchar; + achar_index = achar; + } + else +#endif + { + bchar_index = t1_lookup_glyph_by_stdcharcode( decoder, bchar ); + achar_index = t1_lookup_glyph_by_stdcharcode( decoder, achar ); + } + + if ( bchar_index < 0 || achar_index < 0 ) + { + FT_ERROR(( "t1operator_seac:" + " invalid seac character code arguments\n" )); + return PSaux_Err_Syntax_Error; + } + + /* if we are trying to load a composite glyph, do not load the */ + /* accent character and return the array of subglyphs. */ + if ( decoder->builder.no_recurse ) + { + FT_GlyphSlot glyph = (FT_GlyphSlot)decoder->builder.glyph; + FT_GlyphLoader loader = glyph->internal->loader; + FT_SubGlyph subg; + + + /* reallocate subglyph array if necessary */ + error = FT_GlyphLoader_CheckSubGlyphs( loader, 2 ); + if ( error ) + goto Exit; + + subg = loader->current.subglyphs; + + /* subglyph 0 = base character */ + subg->index = bchar_index; + subg->flags = FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES | + FT_SUBGLYPH_FLAG_USE_MY_METRICS; + subg->arg1 = 0; + subg->arg2 = 0; + subg++; + + /* subglyph 1 = accent character */ + subg->index = achar_index; + subg->flags = FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES; + subg->arg1 = (FT_Int)FIXED_TO_INT( adx - asb ); + subg->arg2 = (FT_Int)FIXED_TO_INT( ady ); + + /* set up remaining glyph fields */ + glyph->num_subglyphs = 2; + glyph->subglyphs = loader->base.subglyphs; + glyph->format = FT_GLYPH_FORMAT_COMPOSITE; + + loader->current.num_subglyphs = 2; + goto Exit; + } + + /* First load `bchar' in builder */ + /* now load the unscaled outline */ + + FT_GlyphLoader_Prepare( decoder->builder.loader ); /* prepare loader */ + + /* the seac operator must not be nested */ + decoder->seac = TRUE; + error = t1_decoder_parse_glyph( decoder, bchar_index ); + decoder->seac = FALSE; + if ( error ) + goto Exit; + + /* save the left bearing and width of the base character */ + /* as they will be erased by the next load. */ + + left_bearing = decoder->builder.left_bearing; + advance = decoder->builder.advance; + + decoder->builder.left_bearing.x = 0; + decoder->builder.left_bearing.y = 0; + + decoder->builder.pos_x = adx - asb; + decoder->builder.pos_y = ady; + + /* Now load `achar' on top of */ + /* the base outline */ + + /* the seac operator must not be nested */ + decoder->seac = TRUE; + error = t1_decoder_parse_glyph( decoder, achar_index ); + decoder->seac = FALSE; + if ( error ) + goto Exit; + + /* restore the left side bearing and */ + /* advance width of the base character */ + + decoder->builder.left_bearing = left_bearing; + decoder->builder.advance = advance; + + decoder->builder.pos_x = 0; + decoder->builder.pos_y = 0; + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* t1_decoder_parse_charstrings */ + /* */ + /* <Description> */ + /* Parses a given Type 1 charstrings program. */ + /* */ + /* <Input> */ + /* decoder :: The current Type 1 decoder. */ + /* */ + /* charstring_base :: The base address of the charstring stream. */ + /* */ + /* charstring_len :: The length in bytes of the charstring stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + t1_decoder_parse_charstrings( T1_Decoder decoder, + FT_Byte* charstring_base, + FT_UInt charstring_len ) + { + FT_Error error; + T1_Decoder_Zone zone; + FT_Byte* ip; + FT_Byte* limit; + T1_Builder builder = &decoder->builder; + FT_Pos x, y, orig_x, orig_y; + FT_Int known_othersubr_result_cnt = 0; + FT_Int unknown_othersubr_result_cnt = 0; + FT_Bool large_int; + FT_Fixed seed; + + T1_Hints_Funcs hinter; + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_Bool bol = TRUE; +#endif + + + /* compute random seed from stack address of parameter */ + seed = (FT_Fixed)( ( (FT_PtrDist)(char*)&seed ^ + (FT_PtrDist)(char*)&decoder ^ + (FT_PtrDist)(char*)&charstring_base ) & + FT_ULONG_MAX ) ; + seed = ( seed ^ ( seed >> 10 ) ^ ( seed >> 20 ) ) & 0xFFFFL; + if ( seed == 0 ) + seed = 0x7384; + + /* First of all, initialize the decoder */ + decoder->top = decoder->stack; + decoder->zone = decoder->zones; + zone = decoder->zones; + + builder->parse_state = T1_Parse_Start; + + hinter = (T1_Hints_Funcs)builder->hints_funcs; + + /* a font that reads BuildCharArray without setting */ + /* its values first is buggy, but ... */ + FT_ASSERT( ( decoder->len_buildchar == 0 ) == + ( decoder->buildchar == NULL ) ); + + if ( decoder->buildchar && decoder->len_buildchar > 0 ) + ft_memset( &decoder->buildchar[0], + 0, + sizeof ( decoder->buildchar[0] ) * decoder->len_buildchar ); + + FT_TRACE4(( "\n" + "Start charstring\n" )); + + zone->base = charstring_base; + limit = zone->limit = charstring_base + charstring_len; + ip = zone->cursor = zone->base; + + error = PSaux_Err_Ok; + + x = orig_x = builder->pos_x; + y = orig_y = builder->pos_y; + + /* begin hints recording session, if any */ + if ( hinter ) + hinter->open( hinter->hints ); + + large_int = FALSE; + + /* now, execute loop */ + while ( ip < limit ) + { + FT_Long* top = decoder->top; + T1_Operator op = op_none; + FT_Int32 value = 0; + + + FT_ASSERT( known_othersubr_result_cnt == 0 || + unknown_othersubr_result_cnt == 0 ); + +#ifdef FT_DEBUG_LEVEL_TRACE + if ( bol ) + { + FT_TRACE5(( " (%d)", decoder->top - decoder->stack )); + bol = FALSE; + } +#endif + + /*********************************************************************/ + /* */ + /* Decode operator or operand */ + /* */ + /* */ + + /* first of all, decompress operator or value */ + switch ( *ip++ ) + { + case 1: + op = op_hstem; + break; + + case 3: + op = op_vstem; + break; + case 4: + op = op_vmoveto; + break; + case 5: + op = op_rlineto; + break; + case 6: + op = op_hlineto; + break; + case 7: + op = op_vlineto; + break; + case 8: + op = op_rrcurveto; + break; + case 9: + op = op_closepath; + break; + case 10: + op = op_callsubr; + break; + case 11: + op = op_return; + break; + + case 13: + op = op_hsbw; + break; + case 14: + op = op_endchar; + break; + + case 15: /* undocumented, obsolete operator */ + op = op_unknown15; + break; + + case 21: + op = op_rmoveto; + break; + case 22: + op = op_hmoveto; + break; + + case 30: + op = op_vhcurveto; + break; + case 31: + op = op_hvcurveto; + break; + + case 12: + if ( ip > limit ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " invalid escape (12+EOF)\n" )); + goto Syntax_Error; + } + + switch ( *ip++ ) + { + case 0: + op = op_dotsection; + break; + case 1: + op = op_vstem3; + break; + case 2: + op = op_hstem3; + break; + case 6: + op = op_seac; + break; + case 7: + op = op_sbw; + break; + case 12: + op = op_div; + break; + case 16: + op = op_callothersubr; + break; + case 17: + op = op_pop; + break; + case 33: + op = op_setcurrentpoint; + break; + + default: + FT_ERROR(( "t1_decoder_parse_charstrings:" + " invalid escape (12+%d)\n", + ip[-1] )); + goto Syntax_Error; + } + break; + + case 255: /* four bytes integer */ + if ( ip + 4 > limit ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unexpected EOF in integer\n" )); + goto Syntax_Error; + } + + value = (FT_Int32)( ( (FT_Long)ip[0] << 24 ) | + ( (FT_Long)ip[1] << 16 ) | + ( (FT_Long)ip[2] << 8 ) | + ip[3] ); + ip += 4; + + /* According to the specification, values > 32000 or < -32000 must */ + /* be followed by a `div' operator to make the result be in the */ + /* range [-32000;32000]. We expect that the second argument of */ + /* `div' is not a large number. Additionally, we don't handle */ + /* stuff like `<large1> <large2> <num> div <num> div' or */ + /* <large1> <large2> <num> div div'. This is probably not allowed */ + /* anyway. */ + if ( value > 32000 || value < -32000 ) + { + if ( large_int ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " no `div' after large integer\n" )); + } + else + large_int = TRUE; + } + else + { + if ( !large_int ) + value <<= 16; + } + + break; + + default: + if ( ip[-1] >= 32 ) + { + if ( ip[-1] < 247 ) + value = (FT_Int32)ip[-1] - 139; + else + { + if ( ++ip > limit ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unexpected EOF in integer\n" )); + goto Syntax_Error; + } + + if ( ip[-2] < 251 ) + value = ( ( (FT_Int32)ip[-2] - 247 ) << 8 ) + ip[-1] + 108; + else + value = -( ( ( (FT_Int32)ip[-2] - 251 ) << 8 ) + ip[-1] + 108 ); + } + + if ( !large_int ) + value <<= 16; + } + else + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " invalid byte (%d)\n", ip[-1] )); + goto Syntax_Error; + } + } + + if ( unknown_othersubr_result_cnt > 0 ) + { + switch ( op ) + { + case op_callsubr: + case op_return: + case op_none: + case op_pop: + break; + + default: + /* all operands have been transferred by previous pops */ + unknown_othersubr_result_cnt = 0; + break; + } + } + + if ( large_int && !( op == op_none || op == op_div ) ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " no `div' after large integer\n" )); + + large_int = FALSE; + } + + /*********************************************************************/ + /* */ + /* Push value on stack, or process operator */ + /* */ + /* */ + if ( op == op_none ) + { + if ( top - decoder->stack >= T1_MAX_CHARSTRINGS_OPERANDS ) + { + FT_ERROR(( "t1_decoder_parse_charstrings: stack overflow\n" )); + goto Syntax_Error; + } + +#ifdef FT_DEBUG_LEVEL_TRACE + if ( large_int ) + FT_TRACE4(( " %ld", value )); + else + FT_TRACE4(( " %ld", Fix2Int( value ) )); +#endif + + *top++ = value; + decoder->top = top; + } + else if ( op == op_callothersubr ) /* callothersubr */ + { + FT_Int subr_no; + FT_Int arg_cnt; + + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_TRACE4(( " callothersubr\n" )); + bol = TRUE; +#endif + + if ( top - decoder->stack < 2 ) + goto Stack_Underflow; + + top -= 2; + + subr_no = Fix2Int( top[1] ); + arg_cnt = Fix2Int( top[0] ); + + /***********************************************************/ + /* */ + /* remove all operands to callothersubr from the stack */ + /* */ + /* for handled othersubrs, where we know the number of */ + /* arguments, we increase the stack by the value of */ + /* known_othersubr_result_cnt */ + /* */ + /* for unhandled othersubrs the following pops adjust the */ + /* stack pointer as necessary */ + + if ( arg_cnt > top - decoder->stack ) + goto Stack_Underflow; + + top -= arg_cnt; + + known_othersubr_result_cnt = 0; + unknown_othersubr_result_cnt = 0; + + /* XXX TODO: The checks to `arg_count == <whatever>' */ + /* might not be correct; an othersubr expects a certain */ + /* number of operands on the PostScript stack (as opposed */ + /* to the T1 stack) but it doesn't have to put them there */ + /* by itself; previous othersubrs might have left the */ + /* operands there if they were not followed by an */ + /* appropriate number of pops */ + /* */ + /* On the other hand, Adobe Reader 7.0.8 for Linux doesn't */ + /* accept a font that contains charstrings like */ + /* */ + /* 100 200 2 20 callothersubr */ + /* 300 1 20 callothersubr pop */ + /* */ + /* Perhaps this is the reason why BuildCharArray exists. */ + + switch ( subr_no ) + { + case 0: /* end flex feature */ + if ( arg_cnt != 3 ) + goto Unexpected_OtherSubr; + + if ( decoder->flex_state == 0 || + decoder->num_flex_vectors != 7 ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unexpected flex end\n" )); + goto Syntax_Error; + } + + /* the two `results' are popped by the following setcurrentpoint */ + top[0] = x; + top[1] = y; + known_othersubr_result_cnt = 2; + break; + + case 1: /* start flex feature */ + if ( arg_cnt != 0 ) + goto Unexpected_OtherSubr; + + decoder->flex_state = 1; + decoder->num_flex_vectors = 0; + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok || + ( error = t1_builder_check_points( builder, 6 ) ) + != PSaux_Err_Ok ) + goto Fail; + break; + + case 2: /* add flex vectors */ + { + FT_Int idx; + + + if ( arg_cnt != 0 ) + goto Unexpected_OtherSubr; + + if ( decoder->flex_state == 0 ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " missing flex start\n" )); + goto Syntax_Error; + } + + /* note that we should not add a point for index 0; */ + /* this will move our current position to the flex */ + /* point without adding any point to the outline */ + idx = decoder->num_flex_vectors++; + if ( idx > 0 && idx < 7 ) + t1_builder_add_point( builder, + x, + y, + (FT_Byte)( idx == 3 || idx == 6 ) ); + } + break; + + case 3: /* change hints */ + if ( arg_cnt != 1 ) + goto Unexpected_OtherSubr; + + known_othersubr_result_cnt = 1; + + if ( hinter ) + hinter->reset( hinter->hints, builder->current->n_points ); + break; + + case 12: + case 13: + /* counter control hints, clear stack */ + top = decoder->stack; + break; + + case 14: + case 15: + case 16: + case 17: + case 18: /* multiple masters */ + { + PS_Blend blend = decoder->blend; + FT_UInt num_points, nn, mm; + FT_Long* delta; + FT_Long* values; + + + if ( !blend ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unexpected multiple masters operator\n" )); + goto Syntax_Error; + } + + num_points = (FT_UInt)subr_no - 13 + ( subr_no == 18 ); + if ( arg_cnt != (FT_Int)( num_points * blend->num_designs ) ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " incorrect number of multiple masters arguments\n" )); + goto Syntax_Error; + } + + /* We want to compute */ + /* */ + /* a0*w0 + a1*w1 + ... + ak*wk */ + /* */ + /* but we only have a0, a1-a0, a2-a0, ..., ak-a0. */ + /* */ + /* However, given that w0 + w1 + ... + wk == 1, we can */ + /* rewrite it easily as */ + /* */ + /* a0 + (a1-a0)*w1 + (a2-a0)*w2 + ... + (ak-a0)*wk */ + /* */ + /* where k == num_designs-1. */ + /* */ + /* I guess that's why it's written in this `compact' */ + /* form. */ + /* */ + delta = top + num_points; + values = top; + for ( nn = 0; nn < num_points; nn++ ) + { + FT_Long tmp = values[0]; + + + for ( mm = 1; mm < blend->num_designs; mm++ ) + tmp += FT_MulFix( *delta++, blend->weight_vector[mm] ); + + *values++ = tmp; + } + + known_othersubr_result_cnt = num_points; + break; + } + + case 19: + /* <idx> 1 19 callothersubr */ + /* => replace elements starting from index cvi( <idx> ) */ + /* of BuildCharArray with WeightVector */ + { + FT_Int idx; + PS_Blend blend = decoder->blend; + + + if ( arg_cnt != 1 || blend == NULL ) + goto Unexpected_OtherSubr; + + idx = Fix2Int( top[0] ); + + if ( idx < 0 || + idx + blend->num_designs > decoder->len_buildchar ) + goto Unexpected_OtherSubr; + + ft_memcpy( &decoder->buildchar[idx], + blend->weight_vector, + blend->num_designs * + sizeof ( blend->weight_vector[0] ) ); + } + break; + + case 20: + /* <arg1> <arg2> 2 20 callothersubr pop */ + /* ==> push <arg1> + <arg2> onto T1 stack */ + if ( arg_cnt != 2 ) + goto Unexpected_OtherSubr; + + top[0] += top[1]; /* XXX (over|under)flow */ + + known_othersubr_result_cnt = 1; + break; + + case 21: + /* <arg1> <arg2> 2 21 callothersubr pop */ + /* ==> push <arg1> - <arg2> onto T1 stack */ + if ( arg_cnt != 2 ) + goto Unexpected_OtherSubr; + + top[0] -= top[1]; /* XXX (over|under)flow */ + + known_othersubr_result_cnt = 1; + break; + + case 22: + /* <arg1> <arg2> 2 22 callothersubr pop */ + /* ==> push <arg1> * <arg2> onto T1 stack */ + if ( arg_cnt != 2 ) + goto Unexpected_OtherSubr; + + top[0] = FT_MulFix( top[0], top[1] ); + + known_othersubr_result_cnt = 1; + break; + + case 23: + /* <arg1> <arg2> 2 23 callothersubr pop */ + /* ==> push <arg1> / <arg2> onto T1 stack */ + if ( arg_cnt != 2 || top[1] == 0 ) + goto Unexpected_OtherSubr; + + top[0] = FT_DivFix( top[0], top[1] ); + + known_othersubr_result_cnt = 1; + break; + + case 24: + /* <val> <idx> 2 24 callothersubr */ + /* ==> set BuildCharArray[cvi( <idx> )] = <val> */ + { + FT_Int idx; + PS_Blend blend = decoder->blend; + + + if ( arg_cnt != 2 || blend == NULL ) + goto Unexpected_OtherSubr; + + idx = Fix2Int( top[1] ); + + if ( idx < 0 || (FT_UInt) idx >= decoder->len_buildchar ) + goto Unexpected_OtherSubr; + + decoder->buildchar[idx] = top[0]; + } + break; + + case 25: + /* <idx> 1 25 callothersubr pop */ + /* ==> push BuildCharArray[cvi( idx )] */ + /* onto T1 stack */ + { + FT_Int idx; + PS_Blend blend = decoder->blend; + + + if ( arg_cnt != 1 || blend == NULL ) + goto Unexpected_OtherSubr; + + idx = Fix2Int( top[0] ); + + if ( idx < 0 || (FT_UInt) idx >= decoder->len_buildchar ) + goto Unexpected_OtherSubr; + + top[0] = decoder->buildchar[idx]; + } + + known_othersubr_result_cnt = 1; + break; + +#if 0 + case 26: + /* <val> mark <idx> ==> set BuildCharArray[cvi( <idx> )] = <val>, */ + /* leave mark on T1 stack */ + /* <val> <idx> ==> set BuildCharArray[cvi( <idx> )] = <val> */ + XXX which routine has left its mark on the (PostScript) stack?; + break; +#endif + + case 27: + /* <res1> <res2> <val1> <val2> 4 27 callothersubr pop */ + /* ==> push <res1> onto T1 stack if <val1> <= <val2>, */ + /* otherwise push <res2> */ + if ( arg_cnt != 4 ) + goto Unexpected_OtherSubr; + + if ( top[2] > top[3] ) + top[0] = top[1]; + + known_othersubr_result_cnt = 1; + break; + + case 28: + /* 0 28 callothersubr pop */ + /* => push random value from interval [0, 1) onto stack */ + if ( arg_cnt != 0 ) + goto Unexpected_OtherSubr; + + { + FT_Fixed Rand; + + + Rand = seed; + if ( Rand >= 0x8000L ) + Rand++; + + top[0] = Rand; + + seed = FT_MulFix( seed, 0x10000L - seed ); + if ( seed == 0 ) + seed += 0x2873; + } + + known_othersubr_result_cnt = 1; + break; + + default: + if ( arg_cnt >= 0 && subr_no >= 0 ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unknown othersubr [%d %d], wish me luck\n", + arg_cnt, subr_no )); + unknown_othersubr_result_cnt = arg_cnt; + break; + } + /* fall through */ + + Unexpected_OtherSubr: + FT_ERROR(( "t1_decoder_parse_charstrings:" + " invalid othersubr [%d %d]\n", arg_cnt, subr_no )); + goto Syntax_Error; + } + + top += known_othersubr_result_cnt; + + decoder->top = top; + } + else /* general operator */ + { + FT_Int num_args = t1_args_count[op]; + + + FT_ASSERT( num_args >= 0 ); + + if ( top - decoder->stack < num_args ) + goto Stack_Underflow; + + /* XXX Operators usually take their operands from the */ + /* bottom of the stack, i.e., the operands are */ + /* decoder->stack[0], ..., decoder->stack[num_args - 1]; */ + /* only div, callsubr, and callothersubr are different. */ + /* In practice it doesn't matter (?). */ + +#ifdef FT_DEBUG_LEVEL_TRACE + + switch ( op ) + { + case op_callsubr: + case op_div: + case op_callothersubr: + case op_pop: + case op_return: + break; + + default: + if ( top - decoder->stack != num_args ) + FT_TRACE0(( "t1_decoder_parse_charstrings:" + " too much operands on the stack" + " (seen %d, expected %d)\n", + top - decoder->stack, num_args )); + break; + } + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + top -= num_args; + + switch ( op ) + { + case op_endchar: + FT_TRACE4(( " endchar\n" )); + + t1_builder_close_contour( builder ); + + /* close hints recording session */ + if ( hinter ) + { + if ( hinter->close( hinter->hints, builder->current->n_points ) ) + goto Syntax_Error; + + /* apply hints to the loaded glyph outline now */ + hinter->apply( hinter->hints, + builder->current, + (PSH_Globals)builder->hints_globals, + decoder->hint_mode ); + } + + /* add current outline to the glyph slot */ + FT_GlyphLoader_Add( builder->loader ); + + /* the compiler should optimize away this empty loop but ... */ + +#ifdef FT_DEBUG_LEVEL_TRACE + + if ( decoder->len_buildchar > 0 ) + { + FT_UInt i; + + + FT_TRACE4(( "BuildCharArray = [ " )); + + for ( i = 0; i < decoder->len_buildchar; ++i ) + FT_TRACE4(( "%d ", decoder->buildchar[i] )); + + FT_TRACE4(( "]\n" )); + } + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + FT_TRACE4(( "\n" )); + + /* return now! */ + return PSaux_Err_Ok; + + case op_hsbw: + FT_TRACE4(( " hsbw" )); + + builder->parse_state = T1_Parse_Have_Width; + + builder->left_bearing.x += top[0]; + builder->advance.x = top[1]; + builder->advance.y = 0; + + orig_x = x = builder->pos_x + top[0]; + orig_y = y = builder->pos_y; + + FT_UNUSED( orig_y ); + + /* the `metrics_only' indicates that we only want to compute */ + /* the glyph's metrics (lsb + advance width), not load the */ + /* rest of it; so exit immediately */ + if ( builder->metrics_only ) + return PSaux_Err_Ok; + + break; + + case op_seac: + return t1operator_seac( decoder, + top[0], + top[1], + top[2], + Fix2Int( top[3] ), + Fix2Int( top[4] ) ); + + case op_sbw: + FT_TRACE4(( " sbw" )); + + builder->parse_state = T1_Parse_Have_Width; + + builder->left_bearing.x += top[0]; + builder->left_bearing.y += top[1]; + builder->advance.x = top[2]; + builder->advance.y = top[3]; + + x = builder->pos_x + top[0]; + y = builder->pos_y + top[1]; + + /* the `metrics_only' indicates that we only want to compute */ + /* the glyph's metrics (lsb + advance width), not load the */ + /* rest of it; so exit immediately */ + if ( builder->metrics_only ) + return PSaux_Err_Ok; + + break; + + case op_closepath: + FT_TRACE4(( " closepath" )); + + /* if there is no path, `closepath' is a no-op */ + if ( builder->parse_state == T1_Parse_Have_Path || + builder->parse_state == T1_Parse_Have_Moveto ) + t1_builder_close_contour( builder ); + + builder->parse_state = T1_Parse_Have_Width; + break; + + case op_hlineto: + FT_TRACE4(( " hlineto" )); + + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok ) + goto Fail; + + x += top[0]; + goto Add_Line; + + case op_hmoveto: + FT_TRACE4(( " hmoveto" )); + + x += top[0]; + if ( !decoder->flex_state ) + { + if ( builder->parse_state == T1_Parse_Start ) + goto Syntax_Error; + builder->parse_state = T1_Parse_Have_Moveto; + } + break; + + case op_hvcurveto: + FT_TRACE4(( " hvcurveto" )); + + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok || + ( error = t1_builder_check_points( builder, 3 ) ) + != PSaux_Err_Ok ) + goto Fail; + + x += top[0]; + t1_builder_add_point( builder, x, y, 0 ); + x += top[1]; + y += top[2]; + t1_builder_add_point( builder, x, y, 0 ); + y += top[3]; + t1_builder_add_point( builder, x, y, 1 ); + break; + + case op_rlineto: + FT_TRACE4(( " rlineto" )); + + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok ) + goto Fail; + + x += top[0]; + y += top[1]; + + Add_Line: + if ( ( error = t1_builder_add_point1( builder, x, y ) ) + != PSaux_Err_Ok ) + goto Fail; + break; + + case op_rmoveto: + FT_TRACE4(( " rmoveto" )); + + x += top[0]; + y += top[1]; + if ( !decoder->flex_state ) + { + if ( builder->parse_state == T1_Parse_Start ) + goto Syntax_Error; + builder->parse_state = T1_Parse_Have_Moveto; + } + break; + + case op_rrcurveto: + FT_TRACE4(( " rrcurveto" )); + + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok || + ( error = t1_builder_check_points( builder, 3 ) ) + != PSaux_Err_Ok ) + goto Fail; + + x += top[0]; + y += top[1]; + t1_builder_add_point( builder, x, y, 0 ); + + x += top[2]; + y += top[3]; + t1_builder_add_point( builder, x, y, 0 ); + + x += top[4]; + y += top[5]; + t1_builder_add_point( builder, x, y, 1 ); + break; + + case op_vhcurveto: + FT_TRACE4(( " vhcurveto" )); + + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok || + ( error = t1_builder_check_points( builder, 3 ) ) + != PSaux_Err_Ok ) + goto Fail; + + y += top[0]; + t1_builder_add_point( builder, x, y, 0 ); + x += top[1]; + y += top[2]; + t1_builder_add_point( builder, x, y, 0 ); + x += top[3]; + t1_builder_add_point( builder, x, y, 1 ); + break; + + case op_vlineto: + FT_TRACE4(( " vlineto" )); + + if ( ( error = t1_builder_start_point( builder, x, y ) ) + != PSaux_Err_Ok ) + goto Fail; + + y += top[0]; + goto Add_Line; + + case op_vmoveto: + FT_TRACE4(( " vmoveto" )); + + y += top[0]; + if ( !decoder->flex_state ) + { + if ( builder->parse_state == T1_Parse_Start ) + goto Syntax_Error; + builder->parse_state = T1_Parse_Have_Moveto; + } + break; + + case op_div: + FT_TRACE4(( " div" )); + + /* if `large_int' is set, we divide unscaled numbers; */ + /* otherwise, we divide numbers in 16.16 format -- */ + /* in both cases, it is the same operation */ + *top = FT_DivFix( top[0], top[1] ); + ++top; + + large_int = FALSE; + break; + + case op_callsubr: + { + FT_Int idx; + + + FT_TRACE4(( " callsubr" )); + + idx = Fix2Int( top[0] ); + if ( idx < 0 || idx >= (FT_Int)decoder->num_subrs ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " invalid subrs index\n" )); + goto Syntax_Error; + } + + if ( zone - decoder->zones >= T1_MAX_SUBRS_CALLS ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " too many nested subrs\n" )); + goto Syntax_Error; + } + + zone->cursor = ip; /* save current instruction pointer */ + + zone++; + + /* The Type 1 driver stores subroutines without the seed bytes. */ + /* The CID driver stores subroutines with seed bytes. This */ + /* case is taken care of when decoder->subrs_len == 0. */ + zone->base = decoder->subrs[idx]; + + if ( decoder->subrs_len ) + zone->limit = zone->base + decoder->subrs_len[idx]; + else + { + /* We are using subroutines from a CID font. We must adjust */ + /* for the seed bytes. */ + zone->base += ( decoder->lenIV >= 0 ? decoder->lenIV : 0 ); + zone->limit = decoder->subrs[idx + 1]; + } + + zone->cursor = zone->base; + + if ( !zone->base ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " invoking empty subrs\n" )); + goto Syntax_Error; + } + + decoder->zone = zone; + ip = zone->base; + limit = zone->limit; + break; + } + + case op_pop: + FT_TRACE4(( " pop" )); + + if ( known_othersubr_result_cnt > 0 ) + { + known_othersubr_result_cnt--; + /* ignore, we pushed the operands ourselves */ + break; + } + + if ( unknown_othersubr_result_cnt == 0 ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " no more operands for othersubr\n" )); + goto Syntax_Error; + } + + unknown_othersubr_result_cnt--; + top++; /* `push' the operand to callothersubr onto the stack */ + break; + + case op_return: + FT_TRACE4(( " return" )); + + if ( zone <= decoder->zones ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unexpected return\n" )); + goto Syntax_Error; + } + + zone--; + ip = zone->cursor; + limit = zone->limit; + decoder->zone = zone; + break; + + case op_dotsection: + FT_TRACE4(( " dotsection" )); + + break; + + case op_hstem: + FT_TRACE4(( " hstem" )); + + /* record horizontal hint */ + if ( hinter ) + { + /* top[0] += builder->left_bearing.y; */ + hinter->stem( hinter->hints, 1, top ); + } + break; + + case op_hstem3: + FT_TRACE4(( " hstem3" )); + + /* record horizontal counter-controlled hints */ + if ( hinter ) + hinter->stem3( hinter->hints, 1, top ); + break; + + case op_vstem: + FT_TRACE4(( " vstem" )); + + /* record vertical hint */ + if ( hinter ) + { + top[0] += orig_x; + hinter->stem( hinter->hints, 0, top ); + } + break; + + case op_vstem3: + FT_TRACE4(( " vstem3" )); + + /* record vertical counter-controlled hints */ + if ( hinter ) + { + FT_Pos dx = orig_x; + + + top[0] += dx; + top[2] += dx; + top[4] += dx; + hinter->stem3( hinter->hints, 0, top ); + } + break; + + case op_setcurrentpoint: + FT_TRACE4(( " setcurrentpoint" )); + + /* From the T1 specification, section 6.4: */ + /* */ + /* The setcurrentpoint command is used only in */ + /* conjunction with results from OtherSubrs procedures. */ + + /* known_othersubr_result_cnt != 0 is already handled */ + /* above. */ + + /* Note, however, that both Ghostscript and Adobe */ + /* Distiller handle this situation by silently ignoring */ + /* the inappropriate `setcurrentpoint' instruction. So */ + /* we do the same. */ +#if 0 + + if ( decoder->flex_state != 1 ) + { + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unexpected `setcurrentpoint'\n" )); + goto Syntax_Error; + } + else + ... +#endif + + x = top[0]; + y = top[1]; + decoder->flex_state = 0; + break; + + case op_unknown15: + FT_TRACE4(( " opcode_15" )); + /* nothing to do except to pop the two arguments */ + break; + + default: + FT_ERROR(( "t1_decoder_parse_charstrings:" + " unhandled opcode %d\n", op )); + goto Syntax_Error; + } + + /* XXX Operators usually clear the operand stack; */ + /* only div, callsubr, callothersubr, pop, and */ + /* return are different. */ + /* In practice it doesn't matter (?). */ + + decoder->top = top; + +#ifdef FT_DEBUG_LEVEL_TRACE + FT_TRACE4(( "\n" )); + bol = TRUE; +#endif + + } /* general operator processing */ + + } /* while ip < limit */ + + FT_TRACE4(( "..end..\n\n" )); + + Fail: + return error; + + Syntax_Error: + return PSaux_Err_Syntax_Error; + + Stack_Underflow: + return PSaux_Err_Stack_Underflow; + } + + + /* parse a single Type 1 glyph */ + FT_LOCAL_DEF( FT_Error ) + t1_decoder_parse_glyph( T1_Decoder decoder, + FT_UInt glyph ) + { + return decoder->parse_callback( decoder, glyph ); + } + + + /* initialize T1 decoder */ + FT_LOCAL_DEF( FT_Error ) + t1_decoder_init( T1_Decoder decoder, + FT_Face face, + FT_Size size, + FT_GlyphSlot slot, + FT_Byte** glyph_names, + PS_Blend blend, + FT_Bool hinting, + FT_Render_Mode hint_mode, + T1_Decoder_Callback parse_callback ) + { + FT_MEM_ZERO( decoder, sizeof ( *decoder ) ); + + /* retrieve PSNames interface from list of current modules */ + { + FT_Service_PsCMaps psnames = 0; + + + FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); + if ( !psnames ) + { + FT_ERROR(( "t1_decoder_init:" + " the `psnames' module is not available\n" )); + return PSaux_Err_Unimplemented_Feature; + } + + decoder->psnames = psnames; + } + + t1_builder_init( &decoder->builder, face, size, slot, hinting ); + + /* decoder->buildchar and decoder->len_buildchar have to be */ + /* initialized by the caller since we cannot know the length */ + /* of the BuildCharArray */ + + decoder->num_glyphs = (FT_UInt)face->num_glyphs; + decoder->glyph_names = glyph_names; + decoder->hint_mode = hint_mode; + decoder->blend = blend; + decoder->parse_callback = parse_callback; + + decoder->funcs = t1_decoder_funcs; + + return PSaux_Err_Ok; + } + + + /* finalize T1 decoder */ + FT_LOCAL_DEF( void ) + t1_decoder_done( T1_Decoder decoder ) + { + t1_builder_done( &decoder->builder ); + } + + +/* END */ diff --git a/src/psaux/t1decode.h b/src/psaux/t1decode.h new file mode 100644 index 0000000..00728db --- /dev/null +++ b/src/psaux/t1decode.h @@ -0,0 +1,64 @@ +/***************************************************************************/ +/* */ +/* t1decode.h */ +/* */ +/* PostScript Type 1 decoding routines (specification). */ +/* */ +/* Copyright 2000-2001, 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1DECODE_H__ +#define __T1DECODE_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_AUX_H +#include FT_INTERNAL_TYPE1_TYPES_H + + +FT_BEGIN_HEADER + + + FT_CALLBACK_TABLE + const T1_Decoder_FuncsRec t1_decoder_funcs; + + + FT_LOCAL( FT_Error ) + t1_decoder_parse_glyph( T1_Decoder decoder, + FT_UInt glyph_index ); + + FT_LOCAL( FT_Error ) + t1_decoder_parse_charstrings( T1_Decoder decoder, + FT_Byte* base, + FT_UInt len ); + + FT_LOCAL( FT_Error ) + t1_decoder_init( T1_Decoder decoder, + FT_Face face, + FT_Size size, + FT_GlyphSlot slot, + FT_Byte** glyph_names, + PS_Blend blend, + FT_Bool hinting, + FT_Render_Mode hint_mode, + T1_Decoder_Callback parse_glyph ); + + FT_LOCAL( void ) + t1_decoder_done( T1_Decoder decoder ); + + +FT_END_HEADER + +#endif /* __T1DECODE_H__ */ + + +/* END */ diff --git a/src/pshinter/Jamfile b/src/pshinter/Jamfile new file mode 100644 index 0000000..779f1b0 --- /dev/null +++ b/src/pshinter/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/pshinter Jamfile +# +# Copyright 2001, 2003 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) pshinter ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = pshrec pshglob pshalgo pshmod pshpic ; + } + else + { + _sources = pshinter ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/pshinter Jamfile diff --git a/src/pshinter/module.mk b/src/pshinter/module.mk new file mode 100644 index 0000000..ed24eb7 --- /dev/null +++ b/src/pshinter/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 PSHinter module definition +# + + +# Copyright 1996-2001, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += PSHINTER_MODULE + +define PSHINTER_MODULE +$(OPEN_DRIVER) FT_Module_Class, pshinter_module_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)pshinter $(ECHO_DRIVER_DESC)Postscript hinter module$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/pshinter/pshalgo.c b/src/pshinter/pshalgo.c new file mode 100644 index 0000000..d798978 --- /dev/null +++ b/src/pshinter/pshalgo.c @@ -0,0 +1,2306 @@ +/***************************************************************************/ +/* */ +/* pshalgo.c */ +/* */ +/* PostScript hinting algorithm (body). */ +/* */ +/* Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 */ +/* by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used */ +/* modified and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_CALC_H +#include "pshalgo.h" + +#include "pshnterr.h" + + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pshalgo2 + + +#ifdef DEBUG_HINTER + PSH_Hint_Table ps_debug_hint_table = 0; + PSH_HintFunc ps_debug_hint_func = 0; + PSH_Glyph ps_debug_glyph = 0; +#endif + + +#define COMPUTE_INFLEXS /* compute inflection points to optimize `S' */ + /* and similar glyphs */ +#define STRONGER /* slightly increase the contrast of smooth */ + /* hinting */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BASIC HINTS RECORDINGS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* return true if two stem hints overlap */ + static FT_Int + psh_hint_overlap( PSH_Hint hint1, + PSH_Hint hint2 ) + { + return hint1->org_pos + hint1->org_len >= hint2->org_pos && + hint2->org_pos + hint2->org_len >= hint1->org_pos; + } + + + /* destroy hints table */ + static void + psh_hint_table_done( PSH_Hint_Table table, + FT_Memory memory ) + { + FT_FREE( table->zones ); + table->num_zones = 0; + table->zone = 0; + + FT_FREE( table->sort ); + FT_FREE( table->hints ); + table->num_hints = 0; + table->max_hints = 0; + table->sort_global = 0; + } + + + /* deactivate all hints in a table */ + static void + psh_hint_table_deactivate( PSH_Hint_Table table ) + { + FT_UInt count = table->max_hints; + PSH_Hint hint = table->hints; + + + for ( ; count > 0; count--, hint++ ) + { + psh_hint_deactivate( hint ); + hint->order = -1; + } + } + + + /* internal function to record a new hint */ + static void + psh_hint_table_record( PSH_Hint_Table table, + FT_UInt idx ) + { + PSH_Hint hint = table->hints + idx; + + + if ( idx >= table->max_hints ) + { + FT_TRACE0(( "psh_hint_table_record: invalid hint index %d\n", idx )); + return; + } + + /* ignore active hints */ + if ( psh_hint_is_active( hint ) ) + return; + + psh_hint_activate( hint ); + + /* now scan the current active hint set to check */ + /* whether `hint' overlaps with another hint */ + { + PSH_Hint* sorted = table->sort_global; + FT_UInt count = table->num_hints; + PSH_Hint hint2; + + + hint->parent = 0; + for ( ; count > 0; count--, sorted++ ) + { + hint2 = sorted[0]; + + if ( psh_hint_overlap( hint, hint2 ) ) + { + hint->parent = hint2; + break; + } + } + } + + if ( table->num_hints < table->max_hints ) + table->sort_global[table->num_hints++] = hint; + else + FT_TRACE0(( "psh_hint_table_record: too many sorted hints! BUG!\n" )); + } + + + static void + psh_hint_table_record_mask( PSH_Hint_Table table, + PS_Mask hint_mask ) + { + FT_Int mask = 0, val = 0; + FT_Byte* cursor = hint_mask->bytes; + FT_UInt idx, limit; + + + limit = hint_mask->num_bits; + + for ( idx = 0; idx < limit; idx++ ) + { + if ( mask == 0 ) + { + val = *cursor++; + mask = 0x80; + } + + if ( val & mask ) + psh_hint_table_record( table, idx ); + + mask >>= 1; + } + } + + + /* create hints table */ + static FT_Error + psh_hint_table_init( PSH_Hint_Table table, + PS_Hint_Table hints, + PS_Mask_Table hint_masks, + PS_Mask_Table counter_masks, + FT_Memory memory ) + { + FT_UInt count; + FT_Error error; + + FT_UNUSED( counter_masks ); + + + count = hints->num_hints; + + /* allocate our tables */ + if ( FT_NEW_ARRAY( table->sort, 2 * count ) || + FT_NEW_ARRAY( table->hints, count ) || + FT_NEW_ARRAY( table->zones, 2 * count + 1 ) ) + goto Exit; + + table->max_hints = count; + table->sort_global = table->sort + count; + table->num_hints = 0; + table->num_zones = 0; + table->zone = 0; + + /* initialize the `table->hints' array */ + { + PSH_Hint write = table->hints; + PS_Hint read = hints->hints; + + + for ( ; count > 0; count--, write++, read++ ) + { + write->org_pos = read->pos; + write->org_len = read->len; + write->flags = read->flags; + } + } + + /* we now need to determine the initial `parent' stems; first */ + /* activate the hints that are given by the initial hint masks */ + if ( hint_masks ) + { + PS_Mask mask = hint_masks->masks; + + + count = hint_masks->num_masks; + table->hint_masks = hint_masks; + + for ( ; count > 0; count--, mask++ ) + psh_hint_table_record_mask( table, mask ); + } + + /* finally, do a linear parse in case some hints were left alone */ + if ( table->num_hints != table->max_hints ) + { + FT_UInt idx; + + + FT_TRACE0(( "psh_hint_table_init: missing/incorrect hint masks\n" )); + + count = table->max_hints; + for ( idx = 0; idx < count; idx++ ) + psh_hint_table_record( table, idx ); + } + + Exit: + return error; + } + + + static void + psh_hint_table_activate_mask( PSH_Hint_Table table, + PS_Mask hint_mask ) + { + FT_Int mask = 0, val = 0; + FT_Byte* cursor = hint_mask->bytes; + FT_UInt idx, limit, count; + + + limit = hint_mask->num_bits; + count = 0; + + psh_hint_table_deactivate( table ); + + for ( idx = 0; idx < limit; idx++ ) + { + if ( mask == 0 ) + { + val = *cursor++; + mask = 0x80; + } + + if ( val & mask ) + { + PSH_Hint hint = &table->hints[idx]; + + + if ( !psh_hint_is_active( hint ) ) + { + FT_UInt count2; + +#if 0 + PSH_Hint* sort = table->sort; + PSH_Hint hint2; + + + for ( count2 = count; count2 > 0; count2--, sort++ ) + { + hint2 = sort[0]; + if ( psh_hint_overlap( hint, hint2 ) ) + FT_TRACE0(( "psh_hint_table_activate_mask:" + " found overlapping hints\n" )) + } +#else + count2 = 0; +#endif + + if ( count2 == 0 ) + { + psh_hint_activate( hint ); + if ( count < table->max_hints ) + table->sort[count++] = hint; + else + FT_TRACE0(( "psh_hint_tableactivate_mask:" + " too many active hints\n" )); + } + } + } + + mask >>= 1; + } + table->num_hints = count; + + /* now, sort the hints; they are guaranteed to not overlap */ + /* so we can compare their "org_pos" field directly */ + { + FT_Int i1, i2; + PSH_Hint hint1, hint2; + PSH_Hint* sort = table->sort; + + + /* a simple bubble sort will do, since in 99% of cases, the hints */ + /* will be already sorted -- and the sort will be linear */ + for ( i1 = 1; i1 < (FT_Int)count; i1++ ) + { + hint1 = sort[i1]; + for ( i2 = i1 - 1; i2 >= 0; i2-- ) + { + hint2 = sort[i2]; + + if ( hint2->org_pos < hint1->org_pos ) + break; + + sort[i2 + 1] = hint2; + sort[i2] = hint1; + } + } + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** HINTS GRID-FITTING AND OPTIMIZATION *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#if 1 + static FT_Pos + psh_dimension_quantize_len( PSH_Dimension dim, + FT_Pos len, + FT_Bool do_snapping ) + { + if ( len <= 64 ) + len = 64; + else + { + FT_Pos delta = len - dim->stdw.widths[0].cur; + + + if ( delta < 0 ) + delta = -delta; + + if ( delta < 40 ) + { + len = dim->stdw.widths[0].cur; + if ( len < 48 ) + len = 48; + } + + if ( len < 3 * 64 ) + { + delta = ( len & 63 ); + len &= -64; + + if ( delta < 10 ) + len += delta; + + else if ( delta < 32 ) + len += 10; + + else if ( delta < 54 ) + len += 54; + + else + len += delta; + } + else + len = FT_PIX_ROUND( len ); + } + + if ( do_snapping ) + len = FT_PIX_ROUND( len ); + + return len; + } +#endif /* 0 */ + + +#ifdef DEBUG_HINTER + + static void + ps_simple_scale( PSH_Hint_Table table, + FT_Fixed scale, + FT_Fixed delta, + FT_Int dimension ) + { + PSH_Hint hint; + FT_UInt count; + + + for ( count = 0; count < table->max_hints; count++ ) + { + hint = table->hints + count; + + hint->cur_pos = FT_MulFix( hint->org_pos, scale ) + delta; + hint->cur_len = FT_MulFix( hint->org_len, scale ); + + if ( ps_debug_hint_func ) + ps_debug_hint_func( hint, dimension ); + } + } + +#endif /* DEBUG_HINTER */ + + + static FT_Fixed + psh_hint_snap_stem_side_delta( FT_Fixed pos, + FT_Fixed len ) + { + FT_Fixed delta1 = FT_PIX_ROUND( pos ) - pos; + FT_Fixed delta2 = FT_PIX_ROUND( pos + len ) - pos - len; + + + if ( FT_ABS( delta1 ) <= FT_ABS( delta2 ) ) + return delta1; + else + return delta2; + } + + + static void + psh_hint_align( PSH_Hint hint, + PSH_Globals globals, + FT_Int dimension, + PSH_Glyph glyph ) + { + PSH_Dimension dim = &globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + FT_Fixed delta = dim->scale_delta; + + + if ( !psh_hint_is_fitted( hint ) ) + { + FT_Pos pos = FT_MulFix( hint->org_pos, scale ) + delta; + FT_Pos len = FT_MulFix( hint->org_len, scale ); + + FT_Int do_snapping; + FT_Pos fit_len; + PSH_AlignmentRec align; + + + /* ignore stem alignments when requested through the hint flags */ + if ( ( dimension == 0 && !glyph->do_horz_hints ) || + ( dimension == 1 && !glyph->do_vert_hints ) ) + { + hint->cur_pos = pos; + hint->cur_len = len; + + psh_hint_set_fitted( hint ); + return; + } + + /* perform stem snapping when requested - this is necessary + * for monochrome and LCD hinting modes only + */ + do_snapping = ( dimension == 0 && glyph->do_horz_snapping ) || + ( dimension == 1 && glyph->do_vert_snapping ); + + hint->cur_len = fit_len = len; + + /* check blue zones for horizontal stems */ + align.align = PSH_BLUE_ALIGN_NONE; + align.align_bot = align.align_top = 0; + + if ( dimension == 1 ) + psh_blues_snap_stem( &globals->blues, + hint->org_pos + hint->org_len, + hint->org_pos, + &align ); + + switch ( align.align ) + { + case PSH_BLUE_ALIGN_TOP: + /* the top of the stem is aligned against a blue zone */ + hint->cur_pos = align.align_top - fit_len; + break; + + case PSH_BLUE_ALIGN_BOT: + /* the bottom of the stem is aligned against a blue zone */ + hint->cur_pos = align.align_bot; + break; + + case PSH_BLUE_ALIGN_TOP | PSH_BLUE_ALIGN_BOT: + /* both edges of the stem are aligned against blue zones */ + hint->cur_pos = align.align_bot; + hint->cur_len = align.align_top - align.align_bot; + break; + + default: + { + PSH_Hint parent = hint->parent; + + + if ( parent ) + { + FT_Pos par_org_center, par_cur_center; + FT_Pos cur_org_center, cur_delta; + + + /* ensure that parent is already fitted */ + if ( !psh_hint_is_fitted( parent ) ) + psh_hint_align( parent, globals, dimension, glyph ); + + /* keep original relation between hints, this is, use the */ + /* scaled distance between the centers of the hints to */ + /* compute the new position */ + par_org_center = parent->org_pos + ( parent->org_len >> 1 ); + par_cur_center = parent->cur_pos + ( parent->cur_len >> 1 ); + cur_org_center = hint->org_pos + ( hint->org_len >> 1 ); + + cur_delta = FT_MulFix( cur_org_center - par_org_center, scale ); + pos = par_cur_center + cur_delta - ( len >> 1 ); + } + + hint->cur_pos = pos; + hint->cur_len = fit_len; + + /* Stem adjustment tries to snap stem widths to standard + * ones. This is important to prevent unpleasant rounding + * artefacts. + */ + if ( glyph->do_stem_adjust ) + { + if ( len <= 64 ) + { + /* the stem is less than one pixel; we will center it + * around the nearest pixel center + */ + if ( len >= 32 ) + { + /* This is a special case where we also widen the stem + * and align it to the pixel grid. + * + * stem_center = pos + (len/2) + * nearest_pixel_center = FT_ROUND(stem_center-32)+32 + * new_pos = nearest_pixel_center-32 + * = FT_ROUND(stem_center-32) + * = FT_FLOOR(stem_center-32+32) + * = FT_FLOOR(stem_center) + * new_len = 64 + */ + pos = FT_PIX_FLOOR( pos + ( len >> 1 ) ); + len = 64; + } + else if ( len > 0 ) + { + /* This is a very small stem; we simply align it to the + * pixel grid, trying to find the minimal displacement. + * + * left = pos + * right = pos + len + * left_nearest_edge = ROUND(pos) + * right_nearest_edge = ROUND(right) + * + * if ( ABS(left_nearest_edge - left) <= + * ABS(right_nearest_edge - right) ) + * new_pos = left + * else + * new_pos = right + */ + FT_Pos left_nearest = FT_PIX_ROUND( pos ); + FT_Pos right_nearest = FT_PIX_ROUND( pos + len ); + FT_Pos left_disp = left_nearest - pos; + FT_Pos right_disp = right_nearest - ( pos + len ); + + + if ( left_disp < 0 ) + left_disp = -left_disp; + if ( right_disp < 0 ) + right_disp = -right_disp; + if ( left_disp <= right_disp ) + pos = left_nearest; + else + pos = right_nearest; + } + else + { + /* this is a ghost stem; we simply round it */ + pos = FT_PIX_ROUND( pos ); + } + } + else + { + len = psh_dimension_quantize_len( dim, len, 0 ); + } + } + + /* now that we have a good hinted stem width, try to position */ + /* the stem along a pixel grid integer coordinate */ + hint->cur_pos = pos + psh_hint_snap_stem_side_delta( pos, len ); + hint->cur_len = len; + } + } + + if ( do_snapping ) + { + pos = hint->cur_pos; + len = hint->cur_len; + + if ( len < 64 ) + len = 64; + else + len = FT_PIX_ROUND( len ); + + switch ( align.align ) + { + case PSH_BLUE_ALIGN_TOP: + hint->cur_pos = align.align_top - len; + hint->cur_len = len; + break; + + case PSH_BLUE_ALIGN_BOT: + hint->cur_len = len; + break; + + case PSH_BLUE_ALIGN_BOT | PSH_BLUE_ALIGN_TOP: + /* don't touch */ + break; + + + default: + hint->cur_len = len; + if ( len & 64 ) + pos = FT_PIX_FLOOR( pos + ( len >> 1 ) ) + 32; + else + pos = FT_PIX_ROUND( pos + ( len >> 1 ) ); + + hint->cur_pos = pos - ( len >> 1 ); + hint->cur_len = len; + } + } + + psh_hint_set_fitted( hint ); + +#ifdef DEBUG_HINTER + if ( ps_debug_hint_func ) + ps_debug_hint_func( hint, dimension ); +#endif + } + } + + +#if 0 /* not used for now, experimental */ + + /* + * A variant to perform "light" hinting (i.e. FT_RENDER_MODE_LIGHT) + * of stems + */ + static void + psh_hint_align_light( PSH_Hint hint, + PSH_Globals globals, + FT_Int dimension, + PSH_Glyph glyph ) + { + PSH_Dimension dim = &globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + FT_Fixed delta = dim->scale_delta; + + + if ( !psh_hint_is_fitted( hint ) ) + { + FT_Pos pos = FT_MulFix( hint->org_pos, scale ) + delta; + FT_Pos len = FT_MulFix( hint->org_len, scale ); + + FT_Pos fit_len; + + PSH_AlignmentRec align; + + + /* ignore stem alignments when requested through the hint flags */ + if ( ( dimension == 0 && !glyph->do_horz_hints ) || + ( dimension == 1 && !glyph->do_vert_hints ) ) + { + hint->cur_pos = pos; + hint->cur_len = len; + + psh_hint_set_fitted( hint ); + return; + } + + fit_len = len; + + hint->cur_len = fit_len; + + /* check blue zones for horizontal stems */ + align.align = PSH_BLUE_ALIGN_NONE; + align.align_bot = align.align_top = 0; + + if ( dimension == 1 ) + psh_blues_snap_stem( &globals->blues, + hint->org_pos + hint->org_len, + hint->org_pos, + &align ); + + switch ( align.align ) + { + case PSH_BLUE_ALIGN_TOP: + /* the top of the stem is aligned against a blue zone */ + hint->cur_pos = align.align_top - fit_len; + break; + + case PSH_BLUE_ALIGN_BOT: + /* the bottom of the stem is aligned against a blue zone */ + hint->cur_pos = align.align_bot; + break; + + case PSH_BLUE_ALIGN_TOP | PSH_BLUE_ALIGN_BOT: + /* both edges of the stem are aligned against blue zones */ + hint->cur_pos = align.align_bot; + hint->cur_len = align.align_top - align.align_bot; + break; + + default: + { + PSH_Hint parent = hint->parent; + + + if ( parent ) + { + FT_Pos par_org_center, par_cur_center; + FT_Pos cur_org_center, cur_delta; + + + /* ensure that parent is already fitted */ + if ( !psh_hint_is_fitted( parent ) ) + psh_hint_align_light( parent, globals, dimension, glyph ); + + par_org_center = parent->org_pos + ( parent->org_len / 2 ); + par_cur_center = parent->cur_pos + ( parent->cur_len / 2 ); + cur_org_center = hint->org_pos + ( hint->org_len / 2 ); + + cur_delta = FT_MulFix( cur_org_center - par_org_center, scale ); + pos = par_cur_center + cur_delta - ( len >> 1 ); + } + + /* Stems less than one pixel wide are easy -- we want to + * make them as dark as possible, so they must fall within + * one pixel. If the stem is split between two pixels + * then snap the edge that is nearer to the pixel boundary + * to the pixel boundary. + */ + if ( len <= 64 ) + { + if ( ( pos + len + 63 ) / 64 != pos / 64 + 1 ) + pos += psh_hint_snap_stem_side_delta ( pos, len ); + } + + /* Position stems other to minimize the amount of mid-grays. + * There are, in general, two positions that do this, + * illustrated as A) and B) below. + * + * + + + + + * + * A) |--------------------------------| + * B) |--------------------------------| + * C) |--------------------------------| + * + * Position A) (split the excess stem equally) should be better + * for stems of width N + f where f < 0.5. + * + * Position B) (split the deficiency equally) should be better + * for stems of width N + f where f > 0.5. + * + * It turns out though that minimizing the total number of lit + * pixels is also important, so position C), with one edge + * aligned with a pixel boundary is actually preferable + * to A). There are also more possibile positions for C) than + * for A) or B), so it involves less distortion of the overall + * character shape. + */ + else /* len > 64 */ + { + FT_Fixed frac_len = len & 63; + FT_Fixed center = pos + ( len >> 1 ); + FT_Fixed delta_a, delta_b; + + + if ( ( len / 64 ) & 1 ) + { + delta_a = FT_PIX_FLOOR( center ) + 32 - center; + delta_b = FT_PIX_ROUND( center ) - center; + } + else + { + delta_a = FT_PIX_ROUND( center ) - center; + delta_b = FT_PIX_FLOOR( center ) + 32 - center; + } + + /* We choose between B) and C) above based on the amount + * of fractinal stem width; for small amounts, choose + * C) always, for large amounts, B) always, and inbetween, + * pick whichever one involves less stem movement. + */ + if ( frac_len < 32 ) + { + pos += psh_hint_snap_stem_side_delta ( pos, len ); + } + else if ( frac_len < 48 ) + { + FT_Fixed side_delta = psh_hint_snap_stem_side_delta ( pos, + len ); + + if ( FT_ABS( side_delta ) < FT_ABS( delta_b ) ) + pos += side_delta; + else + pos += delta_b; + } + else + { + pos += delta_b; + } + } + + hint->cur_pos = pos; + } + } /* switch */ + + psh_hint_set_fitted( hint ); + +#ifdef DEBUG_HINTER + if ( ps_debug_hint_func ) + ps_debug_hint_func( hint, dimension ); +#endif + } + } + +#endif /* 0 */ + + + static void + psh_hint_table_align_hints( PSH_Hint_Table table, + PSH_Globals globals, + FT_Int dimension, + PSH_Glyph glyph ) + { + PSH_Hint hint; + FT_UInt count; + +#ifdef DEBUG_HINTER + + PSH_Dimension dim = &globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + FT_Fixed delta = dim->scale_delta; + + + if ( ps_debug_no_vert_hints && dimension == 0 ) + { + ps_simple_scale( table, scale, delta, dimension ); + return; + } + + if ( ps_debug_no_horz_hints && dimension == 1 ) + { + ps_simple_scale( table, scale, delta, dimension ); + return; + } + +#endif /* DEBUG_HINTER*/ + + hint = table->hints; + count = table->max_hints; + + for ( ; count > 0; count--, hint++ ) + psh_hint_align( hint, globals, dimension, glyph ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** POINTS INTERPOLATION ROUTINES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#define PSH_ZONE_MIN -3200000L +#define PSH_ZONE_MAX +3200000L + +#define xxDEBUG_ZONES + + +#ifdef DEBUG_ZONES + +#include FT_CONFIG_STANDARD_LIBRARY_H + + static void + psh_print_zone( PSH_Zone zone ) + { + printf( "zone [scale,delta,min,max] = [%.3f,%.3f,%d,%d]\n", + zone->scale / 65536.0, + zone->delta / 64.0, + zone->min, + zone->max ); + } + +#else + +#define psh_print_zone( x ) do { } while ( 0 ) + +#endif /* DEBUG_ZONES */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** HINTER GLYPH MANAGEMENT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + +#if 1 + +#define psh_corner_is_flat ft_corner_is_flat +#define psh_corner_orientation ft_corner_orientation + +#else + + FT_LOCAL_DEF( FT_Int ) + psh_corner_is_flat( FT_Pos x_in, + FT_Pos y_in, + FT_Pos x_out, + FT_Pos y_out ) + { + FT_Pos ax = x_in; + FT_Pos ay = y_in; + + FT_Pos d_in, d_out, d_corner; + + + if ( ax < 0 ) + ax = -ax; + if ( ay < 0 ) + ay = -ay; + d_in = ax + ay; + + ax = x_out; + if ( ax < 0 ) + ax = -ax; + ay = y_out; + if ( ay < 0 ) + ay = -ay; + d_out = ax + ay; + + ax = x_out + x_in; + if ( ax < 0 ) + ax = -ax; + ay = y_out + y_in; + if ( ay < 0 ) + ay = -ay; + d_corner = ax + ay; + + return ( d_in + d_out - d_corner ) < ( d_corner >> 4 ); + } + + static FT_Int + psh_corner_orientation( FT_Pos in_x, + FT_Pos in_y, + FT_Pos out_x, + FT_Pos out_y ) + { + FT_Int result; + + + /* deal with the trivial cases quickly */ + if ( in_y == 0 ) + { + if ( in_x >= 0 ) + result = out_y; + else + result = -out_y; + } + else if ( in_x == 0 ) + { + if ( in_y >= 0 ) + result = -out_x; + else + result = out_x; + } + else if ( out_y == 0 ) + { + if ( out_x >= 0 ) + result = in_y; + else + result = -in_y; + } + else if ( out_x == 0 ) + { + if ( out_y >= 0 ) + result = -in_x; + else + result = in_x; + } + else /* general case */ + { + long long delta = (long long)in_x * out_y - (long long)in_y * out_x; + + if ( delta == 0 ) + result = 0; + else + result = 1 - 2 * ( delta < 0 ); + } + + return result; + } + +#endif /* !1 */ + + +#ifdef COMPUTE_INFLEXS + + /* compute all inflex points in a given glyph */ + static void + psh_glyph_compute_inflections( PSH_Glyph glyph ) + { + FT_UInt n; + + + for ( n = 0; n < glyph->num_contours; n++ ) + { + PSH_Point first, start, end, before, after; + FT_Pos in_x, in_y, out_x, out_y; + FT_Int orient_prev, orient_cur; + FT_Int finished = 0; + + + /* we need at least 4 points to create an inflection point */ + if ( glyph->contours[n].count < 4 ) + continue; + + /* compute first segment in contour */ + first = glyph->contours[n].start; + + start = end = first; + do + { + end = end->next; + if ( end == first ) + goto Skip; + + in_x = end->org_u - start->org_u; + in_y = end->org_v - start->org_v; + + } while ( in_x == 0 && in_y == 0 ); + + /* extend the segment start whenever possible */ + before = start; + do + { + do + { + start = before; + before = before->prev; + if ( before == first ) + goto Skip; + + out_x = start->org_u - before->org_u; + out_y = start->org_v - before->org_v; + + } while ( out_x == 0 && out_y == 0 ); + + orient_prev = psh_corner_orientation( in_x, in_y, out_x, out_y ); + + } while ( orient_prev == 0 ); + + first = start; + in_x = out_x; + in_y = out_y; + + /* now, process all segments in the contour */ + do + { + /* first, extend current segment's end whenever possible */ + after = end; + do + { + do + { + end = after; + after = after->next; + if ( after == first ) + finished = 1; + + out_x = after->org_u - end->org_u; + out_y = after->org_v - end->org_v; + + } while ( out_x == 0 && out_y == 0 ); + + orient_cur = psh_corner_orientation( in_x, in_y, out_x, out_y ); + + } while ( orient_cur == 0 ); + + if ( ( orient_cur ^ orient_prev ) < 0 ) + { + do + { + psh_point_set_inflex( start ); + start = start->next; + } + while ( start != end ); + + psh_point_set_inflex( start ); + } + + start = end; + end = after; + orient_prev = orient_cur; + in_x = out_x; + in_y = out_y; + + } while ( !finished ); + + Skip: + ; + } + } + +#endif /* COMPUTE_INFLEXS */ + + + static void + psh_glyph_done( PSH_Glyph glyph ) + { + FT_Memory memory = glyph->memory; + + + psh_hint_table_done( &glyph->hint_tables[1], memory ); + psh_hint_table_done( &glyph->hint_tables[0], memory ); + + FT_FREE( glyph->points ); + FT_FREE( glyph->contours ); + + glyph->num_points = 0; + glyph->num_contours = 0; + + glyph->memory = 0; + } + + + static int + psh_compute_dir( FT_Pos dx, + FT_Pos dy ) + { + FT_Pos ax, ay; + int result = PSH_DIR_NONE; + + + ax = ( dx >= 0 ) ? dx : -dx; + ay = ( dy >= 0 ) ? dy : -dy; + + if ( ay * 12 < ax ) + { + /* |dy| <<< |dx| means a near-horizontal segment */ + result = ( dx >= 0 ) ? PSH_DIR_RIGHT : PSH_DIR_LEFT; + } + else if ( ax * 12 < ay ) + { + /* |dx| <<< |dy| means a near-vertical segment */ + result = ( dy >= 0 ) ? PSH_DIR_UP : PSH_DIR_DOWN; + } + + return result; + } + + + /* load outline point coordinates into hinter glyph */ + static void + psh_glyph_load_points( PSH_Glyph glyph, + FT_Int dimension ) + { + FT_Vector* vec = glyph->outline->points; + PSH_Point point = glyph->points; + FT_UInt count = glyph->num_points; + + + for ( ; count > 0; count--, point++, vec++ ) + { + point->flags2 = 0; + point->hint = NULL; + if ( dimension == 0 ) + { + point->org_u = vec->x; + point->org_v = vec->y; + } + else + { + point->org_u = vec->y; + point->org_v = vec->x; + } + +#ifdef DEBUG_HINTER + point->org_x = vec->x; + point->org_y = vec->y; +#endif + + } + } + + + /* save hinted point coordinates back to outline */ + static void + psh_glyph_save_points( PSH_Glyph glyph, + FT_Int dimension ) + { + FT_UInt n; + PSH_Point point = glyph->points; + FT_Vector* vec = glyph->outline->points; + char* tags = glyph->outline->tags; + + + for ( n = 0; n < glyph->num_points; n++ ) + { + if ( dimension == 0 ) + vec[n].x = point->cur_u; + else + vec[n].y = point->cur_u; + + if ( psh_point_is_strong( point ) ) + tags[n] |= (char)( ( dimension == 0 ) ? 32 : 64 ); + +#ifdef DEBUG_HINTER + + if ( dimension == 0 ) + { + point->cur_x = point->cur_u; + point->flags_x = point->flags2 | point->flags; + } + else + { + point->cur_y = point->cur_u; + point->flags_y = point->flags2 | point->flags; + } + +#endif + + point++; + } + } + + + static FT_Error + psh_glyph_init( PSH_Glyph glyph, + FT_Outline* outline, + PS_Hints ps_hints, + PSH_Globals globals ) + { + FT_Error error; + FT_Memory memory; + + + /* clear all fields */ + FT_MEM_ZERO( glyph, sizeof ( *glyph ) ); + + memory = glyph->memory = globals->memory; + + /* allocate and setup points + contours arrays */ + if ( FT_NEW_ARRAY( glyph->points, outline->n_points ) || + FT_NEW_ARRAY( glyph->contours, outline->n_contours ) ) + goto Exit; + + glyph->num_points = outline->n_points; + glyph->num_contours = outline->n_contours; + + { + FT_UInt first = 0, next, n; + PSH_Point points = glyph->points; + PSH_Contour contour = glyph->contours; + + + for ( n = 0; n < glyph->num_contours; n++ ) + { + FT_Int count; + PSH_Point point; + + + next = outline->contours[n] + 1; + count = next - first; + + contour->start = points + first; + contour->count = (FT_UInt)count; + + if ( count > 0 ) + { + point = points + first; + + point->prev = points + next - 1; + point->contour = contour; + + for ( ; count > 1; count-- ) + { + point[0].next = point + 1; + point[1].prev = point; + point++; + point->contour = contour; + } + point->next = points + first; + } + + contour++; + first = next; + } + } + + { + PSH_Point points = glyph->points; + PSH_Point point = points; + FT_Vector* vec = outline->points; + FT_UInt n; + + + for ( n = 0; n < glyph->num_points; n++, point++ ) + { + FT_Int n_prev = (FT_Int)( point->prev - points ); + FT_Int n_next = (FT_Int)( point->next - points ); + FT_Pos dxi, dyi, dxo, dyo; + + + if ( !( outline->tags[n] & FT_CURVE_TAG_ON ) ) + point->flags = PSH_POINT_OFF; + + dxi = vec[n].x - vec[n_prev].x; + dyi = vec[n].y - vec[n_prev].y; + + point->dir_in = (FT_Char)psh_compute_dir( dxi, dyi ); + + dxo = vec[n_next].x - vec[n].x; + dyo = vec[n_next].y - vec[n].y; + + point->dir_out = (FT_Char)psh_compute_dir( dxo, dyo ); + + /* detect smooth points */ + if ( point->flags & PSH_POINT_OFF ) + point->flags |= PSH_POINT_SMOOTH; + + else if ( point->dir_in == point->dir_out ) + { + if ( point->dir_out != PSH_DIR_NONE || + psh_corner_is_flat( dxi, dyi, dxo, dyo ) ) + point->flags |= PSH_POINT_SMOOTH; + } + } + } + + glyph->outline = outline; + glyph->globals = globals; + +#ifdef COMPUTE_INFLEXS + psh_glyph_load_points( glyph, 0 ); + psh_glyph_compute_inflections( glyph ); +#endif /* COMPUTE_INFLEXS */ + + /* now deal with hints tables */ + error = psh_hint_table_init( &glyph->hint_tables [0], + &ps_hints->dimension[0].hints, + &ps_hints->dimension[0].masks, + &ps_hints->dimension[0].counters, + memory ); + if ( error ) + goto Exit; + + error = psh_hint_table_init( &glyph->hint_tables [1], + &ps_hints->dimension[1].hints, + &ps_hints->dimension[1].masks, + &ps_hints->dimension[1].counters, + memory ); + if ( error ) + goto Exit; + + Exit: + return error; + } + + + /* compute all extrema in a glyph for a given dimension */ + static void + psh_glyph_compute_extrema( PSH_Glyph glyph ) + { + FT_UInt n; + + + /* first of all, compute all local extrema */ + for ( n = 0; n < glyph->num_contours; n++ ) + { + PSH_Point first = glyph->contours[n].start; + PSH_Point point, before, after; + + + if ( glyph->contours[n].count == 0 ) + continue; + + point = first; + before = point; + after = point; + + do + { + before = before->prev; + if ( before == first ) + goto Skip; + + } while ( before->org_u == point->org_u ); + + first = point = before->next; + + for (;;) + { + after = point; + do + { + after = after->next; + if ( after == first ) + goto Next; + + } while ( after->org_u == point->org_u ); + + if ( before->org_u < point->org_u ) + { + if ( after->org_u < point->org_u ) + { + /* local maximum */ + goto Extremum; + } + } + else /* before->org_u > point->org_u */ + { + if ( after->org_u > point->org_u ) + { + /* local minimum */ + Extremum: + do + { + psh_point_set_extremum( point ); + point = point->next; + + } while ( point != after ); + } + } + + before = after->prev; + point = after; + + } /* for */ + + Next: + ; + } + + /* for each extremum, determine its direction along the */ + /* orthogonal axis */ + for ( n = 0; n < glyph->num_points; n++ ) + { + PSH_Point point, before, after; + + + point = &glyph->points[n]; + before = point; + after = point; + + if ( psh_point_is_extremum( point ) ) + { + do + { + before = before->prev; + if ( before == point ) + goto Skip; + + } while ( before->org_v == point->org_v ); + + do + { + after = after->next; + if ( after == point ) + goto Skip; + + } while ( after->org_v == point->org_v ); + } + + if ( before->org_v < point->org_v && + after->org_v > point->org_v ) + { + psh_point_set_positive( point ); + } + else if ( before->org_v > point->org_v && + after->org_v < point->org_v ) + { + psh_point_set_negative( point ); + } + + Skip: + ; + } + } + + + /* major_dir is the direction for points on the bottom/left of the stem; */ + /* Points on the top/right of the stem will have a direction of */ + /* -major_dir. */ + + static void + psh_hint_table_find_strong_points( PSH_Hint_Table table, + PSH_Point point, + FT_UInt count, + FT_Int threshold, + FT_Int major_dir ) + { + PSH_Hint* sort = table->sort; + FT_UInt num_hints = table->num_hints; + + + for ( ; count > 0; count--, point++ ) + { + FT_Int point_dir = 0; + FT_Pos org_u = point->org_u; + + + if ( psh_point_is_strong( point ) ) + continue; + + if ( PSH_DIR_COMPARE( point->dir_in, major_dir ) ) + point_dir = point->dir_in; + + else if ( PSH_DIR_COMPARE( point->dir_out, major_dir ) ) + point_dir = point->dir_out; + + if ( point_dir ) + { + if ( point_dir == major_dir ) + { + FT_UInt nn; + + + for ( nn = 0; nn < num_hints; nn++ ) + { + PSH_Hint hint = sort[nn]; + FT_Pos d = org_u - hint->org_pos; + + + if ( d < threshold && -d < threshold ) + { + psh_point_set_strong( point ); + point->flags2 |= PSH_POINT_EDGE_MIN; + point->hint = hint; + break; + } + } + } + else if ( point_dir == -major_dir ) + { + FT_UInt nn; + + + for ( nn = 0; nn < num_hints; nn++ ) + { + PSH_Hint hint = sort[nn]; + FT_Pos d = org_u - hint->org_pos - hint->org_len; + + + if ( d < threshold && -d < threshold ) + { + psh_point_set_strong( point ); + point->flags2 |= PSH_POINT_EDGE_MAX; + point->hint = hint; + break; + } + } + } + } + +#if 1 + else if ( psh_point_is_extremum( point ) ) + { + /* treat extrema as special cases for stem edge alignment */ + FT_UInt nn, min_flag, max_flag; + + + if ( major_dir == PSH_DIR_HORIZONTAL ) + { + min_flag = PSH_POINT_POSITIVE; + max_flag = PSH_POINT_NEGATIVE; + } + else + { + min_flag = PSH_POINT_NEGATIVE; + max_flag = PSH_POINT_POSITIVE; + } + + if ( point->flags2 & min_flag ) + { + for ( nn = 0; nn < num_hints; nn++ ) + { + PSH_Hint hint = sort[nn]; + FT_Pos d = org_u - hint->org_pos; + + + if ( d < threshold && -d < threshold ) + { + point->flags2 |= PSH_POINT_EDGE_MIN; + point->hint = hint; + psh_point_set_strong( point ); + break; + } + } + } + else if ( point->flags2 & max_flag ) + { + for ( nn = 0; nn < num_hints; nn++ ) + { + PSH_Hint hint = sort[nn]; + FT_Pos d = org_u - hint->org_pos - hint->org_len; + + + if ( d < threshold && -d < threshold ) + { + point->flags2 |= PSH_POINT_EDGE_MAX; + point->hint = hint; + psh_point_set_strong( point ); + break; + } + } + } + + if ( point->hint == NULL ) + { + for ( nn = 0; nn < num_hints; nn++ ) + { + PSH_Hint hint = sort[nn]; + + + if ( org_u >= hint->org_pos && + org_u <= hint->org_pos + hint->org_len ) + { + point->hint = hint; + break; + } + } + } + } + +#endif /* 1 */ + } + } + + + /* the accepted shift for strong points in fractional pixels */ +#define PSH_STRONG_THRESHOLD 32 + + /* the maximum shift value in font units */ +#define PSH_STRONG_THRESHOLD_MAXIMUM 30 + + + /* find strong points in a glyph */ + static void + psh_glyph_find_strong_points( PSH_Glyph glyph, + FT_Int dimension ) + { + /* a point is `strong' if it is located on a stem edge and */ + /* has an `in' or `out' tangent parallel to the hint's direction */ + + PSH_Hint_Table table = &glyph->hint_tables[dimension]; + PS_Mask mask = table->hint_masks->masks; + FT_UInt num_masks = table->hint_masks->num_masks; + FT_UInt first = 0; + FT_Int major_dir = dimension == 0 ? PSH_DIR_VERTICAL + : PSH_DIR_HORIZONTAL; + PSH_Dimension dim = &glyph->globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + FT_Int threshold; + + + threshold = (FT_Int)FT_DivFix( PSH_STRONG_THRESHOLD, scale ); + if ( threshold > PSH_STRONG_THRESHOLD_MAXIMUM ) + threshold = PSH_STRONG_THRESHOLD_MAXIMUM; + + /* process secondary hints to `selected' points */ + if ( num_masks > 1 && glyph->num_points > 0 ) + { + /* the `endchar' op can reduce the number of points */ + first = mask->end_point > glyph->num_points + ? glyph->num_points + : mask->end_point; + mask++; + for ( ; num_masks > 1; num_masks--, mask++ ) + { + FT_UInt next; + FT_Int count; + + + next = mask->end_point > glyph->num_points + ? glyph->num_points + : mask->end_point; + count = next - first; + if ( count > 0 ) + { + PSH_Point point = glyph->points + first; + + + psh_hint_table_activate_mask( table, mask ); + + psh_hint_table_find_strong_points( table, point, count, + threshold, major_dir ); + } + first = next; + } + } + + /* process primary hints for all points */ + if ( num_masks == 1 ) + { + FT_UInt count = glyph->num_points; + PSH_Point point = glyph->points; + + + psh_hint_table_activate_mask( table, table->hint_masks->masks ); + + psh_hint_table_find_strong_points( table, point, count, + threshold, major_dir ); + } + + /* now, certain points may have been attached to a hint and */ + /* not marked as strong; update their flags then */ + { + FT_UInt count = glyph->num_points; + PSH_Point point = glyph->points; + + + for ( ; count > 0; count--, point++ ) + if ( point->hint && !psh_point_is_strong( point ) ) + psh_point_set_strong( point ); + } + } + + + /* find points in a glyph which are in a blue zone and have `in' or */ + /* `out' tangents parallel to the horizontal axis */ + static void + psh_glyph_find_blue_points( PSH_Blues blues, + PSH_Glyph glyph ) + { + PSH_Blue_Table table; + PSH_Blue_Zone zone; + FT_UInt glyph_count = glyph->num_points; + FT_UInt blue_count; + PSH_Point point = glyph->points; + + + for ( ; glyph_count > 0; glyph_count--, point++ ) + { + FT_Pos y; + + + /* check tangents */ + if ( !PSH_DIR_COMPARE( point->dir_in, PSH_DIR_HORIZONTAL ) && + !PSH_DIR_COMPARE( point->dir_out, PSH_DIR_HORIZONTAL ) ) + continue; + + /* skip strong points */ + if ( psh_point_is_strong( point ) ) + continue; + + y = point->org_u; + + /* look up top zones */ + table = &blues->normal_top; + blue_count = table->count; + zone = table->zones; + + for ( ; blue_count > 0; blue_count--, zone++ ) + { + FT_Pos delta = y - zone->org_bottom; + + + if ( delta < -blues->blue_fuzz ) + break; + + if ( y <= zone->org_top + blues->blue_fuzz ) + if ( blues->no_overshoots || delta <= blues->blue_threshold ) + { + point->cur_u = zone->cur_bottom; + psh_point_set_strong( point ); + psh_point_set_fitted( point ); + } + } + + /* look up bottom zones */ + table = &blues->normal_bottom; + blue_count = table->count; + zone = table->zones + blue_count - 1; + + for ( ; blue_count > 0; blue_count--, zone-- ) + { + FT_Pos delta = zone->org_top - y; + + + if ( delta < -blues->blue_fuzz ) + break; + + if ( y >= zone->org_bottom - blues->blue_fuzz ) + if ( blues->no_overshoots || delta < blues->blue_threshold ) + { + point->cur_u = zone->cur_top; + psh_point_set_strong( point ); + psh_point_set_fitted( point ); + } + } + } + } + + + /* interpolate strong points with the help of hinted coordinates */ + static void + psh_glyph_interpolate_strong_points( PSH_Glyph glyph, + FT_Int dimension ) + { + PSH_Dimension dim = &glyph->globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + + FT_UInt count = glyph->num_points; + PSH_Point point = glyph->points; + + + for ( ; count > 0; count--, point++ ) + { + PSH_Hint hint = point->hint; + + + if ( hint ) + { + FT_Pos delta; + + + if ( psh_point_is_edge_min( point ) ) + point->cur_u = hint->cur_pos; + + else if ( psh_point_is_edge_max( point ) ) + point->cur_u = hint->cur_pos + hint->cur_len; + + else + { + delta = point->org_u - hint->org_pos; + + if ( delta <= 0 ) + point->cur_u = hint->cur_pos + FT_MulFix( delta, scale ); + + else if ( delta >= hint->org_len ) + point->cur_u = hint->cur_pos + hint->cur_len + + FT_MulFix( delta - hint->org_len, scale ); + + else /* hint->org_len > 0 */ + point->cur_u = hint->cur_pos + + FT_MulDiv( delta, hint->cur_len, + hint->org_len ); + } + psh_point_set_fitted( point ); + } + } + } + + +#define PSH_MAX_STRONG_INTERNAL 16 + + static void + psh_glyph_interpolate_normal_points( PSH_Glyph glyph, + FT_Int dimension ) + { + +#if 1 + /* first technique: a point is strong if it is a local extremum */ + + PSH_Dimension dim = &glyph->globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + FT_Memory memory = glyph->memory; + + PSH_Point* strongs = NULL; + PSH_Point strongs_0[PSH_MAX_STRONG_INTERNAL]; + FT_UInt num_strongs = 0; + + PSH_Point points = glyph->points; + PSH_Point points_end = points + glyph->num_points; + PSH_Point point; + + + /* first count the number of strong points */ + for ( point = points; point < points_end; point++ ) + { + if ( psh_point_is_strong( point ) ) + num_strongs++; + } + + if ( num_strongs == 0 ) /* nothing to do here */ + return; + + /* allocate an array to store a list of points, */ + /* stored in increasing org_u order */ + if ( num_strongs <= PSH_MAX_STRONG_INTERNAL ) + strongs = strongs_0; + else + { + FT_Error error; + + + if ( FT_NEW_ARRAY( strongs, num_strongs ) ) + return; + } + + num_strongs = 0; + for ( point = points; point < points_end; point++ ) + { + PSH_Point* insert; + + + if ( !psh_point_is_strong( point ) ) + continue; + + for ( insert = strongs + num_strongs; insert > strongs; insert-- ) + { + if ( insert[-1]->org_u <= point->org_u ) + break; + + insert[0] = insert[-1]; + } + insert[0] = point; + num_strongs++; + } + + /* now try to interpolate all normal points */ + for ( point = points; point < points_end; point++ ) + { + if ( psh_point_is_strong( point ) ) + continue; + + /* sometimes, some local extrema are smooth points */ + if ( psh_point_is_smooth( point ) ) + { + if ( point->dir_in == PSH_DIR_NONE || + point->dir_in != point->dir_out ) + continue; + + if ( !psh_point_is_extremum( point ) && + !psh_point_is_inflex( point ) ) + continue; + + point->flags &= ~PSH_POINT_SMOOTH; + } + + /* find best enclosing point coordinates then interpolate */ + { + PSH_Point before, after; + FT_UInt nn; + + + for ( nn = 0; nn < num_strongs; nn++ ) + if ( strongs[nn]->org_u > point->org_u ) + break; + + if ( nn == 0 ) /* point before the first strong point */ + { + after = strongs[0]; + + point->cur_u = after->cur_u + + FT_MulFix( point->org_u - after->org_u, + scale ); + } + else + { + before = strongs[nn - 1]; + + for ( nn = num_strongs; nn > 0; nn-- ) + if ( strongs[nn - 1]->org_u < point->org_u ) + break; + + if ( nn == num_strongs ) /* point is after last strong point */ + { + before = strongs[nn - 1]; + + point->cur_u = before->cur_u + + FT_MulFix( point->org_u - before->org_u, + scale ); + } + else + { + FT_Pos u; + + + after = strongs[nn]; + + /* now interpolate point between before and after */ + u = point->org_u; + + if ( u == before->org_u ) + point->cur_u = before->cur_u; + + else if ( u == after->org_u ) + point->cur_u = after->cur_u; + + else + point->cur_u = before->cur_u + + FT_MulDiv( u - before->org_u, + after->cur_u - before->cur_u, + after->org_u - before->org_u ); + } + } + psh_point_set_fitted( point ); + } + } + + if ( strongs != strongs_0 ) + FT_FREE( strongs ); + +#endif /* 1 */ + + } + + + /* interpolate other points */ + static void + psh_glyph_interpolate_other_points( PSH_Glyph glyph, + FT_Int dimension ) + { + PSH_Dimension dim = &glyph->globals->dimension[dimension]; + FT_Fixed scale = dim->scale_mult; + FT_Fixed delta = dim->scale_delta; + PSH_Contour contour = glyph->contours; + FT_UInt num_contours = glyph->num_contours; + + + for ( ; num_contours > 0; num_contours--, contour++ ) + { + PSH_Point start = contour->start; + PSH_Point first, next, point; + FT_UInt fit_count; + + + /* count the number of strong points in this contour */ + next = start + contour->count; + fit_count = 0; + first = 0; + + for ( point = start; point < next; point++ ) + if ( psh_point_is_fitted( point ) ) + { + if ( !first ) + first = point; + + fit_count++; + } + + /* if there are less than 2 fitted points in the contour, we */ + /* simply scale and eventually translate the contour points */ + if ( fit_count < 2 ) + { + if ( fit_count == 1 ) + delta = first->cur_u - FT_MulFix( first->org_u, scale ); + + for ( point = start; point < next; point++ ) + if ( point != first ) + point->cur_u = FT_MulFix( point->org_u, scale ) + delta; + + goto Next_Contour; + } + + /* there are more than 2 strong points in this contour; we */ + /* need to interpolate weak points between them */ + start = first; + do + { + point = first; + + /* skip consecutive fitted points */ + for (;;) + { + next = first->next; + if ( next == start ) + goto Next_Contour; + + if ( !psh_point_is_fitted( next ) ) + break; + + first = next; + } + + /* find next fitted point after unfitted one */ + for (;;) + { + next = next->next; + if ( psh_point_is_fitted( next ) ) + break; + } + + /* now interpolate between them */ + { + FT_Pos org_a, org_ab, cur_a, cur_ab; + FT_Pos org_c, org_ac, cur_c; + FT_Fixed scale_ab; + + + if ( first->org_u <= next->org_u ) + { + org_a = first->org_u; + cur_a = first->cur_u; + org_ab = next->org_u - org_a; + cur_ab = next->cur_u - cur_a; + } + else + { + org_a = next->org_u; + cur_a = next->cur_u; + org_ab = first->org_u - org_a; + cur_ab = first->cur_u - cur_a; + } + + scale_ab = 0x10000L; + if ( org_ab > 0 ) + scale_ab = FT_DivFix( cur_ab, org_ab ); + + point = first->next; + do + { + org_c = point->org_u; + org_ac = org_c - org_a; + + if ( org_ac <= 0 ) + { + /* on the left of the interpolation zone */ + cur_c = cur_a + FT_MulFix( org_ac, scale ); + } + else if ( org_ac >= org_ab ) + { + /* on the right on the interpolation zone */ + cur_c = cur_a + cur_ab + FT_MulFix( org_ac - org_ab, scale ); + } + else + { + /* within the interpolation zone */ + cur_c = cur_a + FT_MulFix( org_ac, scale_ab ); + } + + point->cur_u = cur_c; + + point = point->next; + + } while ( point != next ); + } + + /* keep going until all points in the contours have been processed */ + first = next; + + } while ( first != start ); + + Next_Contour: + ; + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** HIGH-LEVEL INTERFACE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_Error + ps_hints_apply( PS_Hints ps_hints, + FT_Outline* outline, + PSH_Globals globals, + FT_Render_Mode hint_mode ) + { + PSH_GlyphRec glyphrec; + PSH_Glyph glyph = &glyphrec; + FT_Error error; +#ifdef DEBUG_HINTER + FT_Memory memory; +#endif + FT_Int dimension; + + + /* something to do? */ + if ( outline->n_points == 0 || outline->n_contours == 0 ) + return PSH_Err_Ok; + +#ifdef DEBUG_HINTER + + memory = globals->memory; + + if ( ps_debug_glyph ) + { + psh_glyph_done( ps_debug_glyph ); + FT_FREE( ps_debug_glyph ); + } + + if ( FT_NEW( glyph ) ) + return error; + + ps_debug_glyph = glyph; + +#endif /* DEBUG_HINTER */ + + error = psh_glyph_init( glyph, outline, ps_hints, globals ); + if ( error ) + goto Exit; + + /* try to optimize the y_scale so that the top of non-capital letters + * is aligned on a pixel boundary whenever possible + */ + { + PSH_Dimension dim_x = &glyph->globals->dimension[0]; + PSH_Dimension dim_y = &glyph->globals->dimension[1]; + + FT_Fixed x_scale = dim_x->scale_mult; + FT_Fixed y_scale = dim_y->scale_mult; + + FT_Fixed old_x_scale = x_scale; + FT_Fixed old_y_scale = y_scale; + + FT_Fixed scaled; + FT_Fixed fitted; + + FT_Bool rescale = FALSE; + + + scaled = FT_MulFix( globals->blues.normal_top.zones->org_ref, y_scale ); + fitted = FT_PIX_ROUND( scaled ); + + if ( fitted != 0 && scaled != fitted ) + { + rescale = TRUE; + + y_scale = FT_MulDiv( y_scale, fitted, scaled ); + + if ( fitted < scaled ) + x_scale -= x_scale / 50; + + psh_globals_set_scale( glyph->globals, x_scale, y_scale, 0, 0 ); + } + + glyph->do_horz_hints = 1; + glyph->do_vert_hints = 1; + + glyph->do_horz_snapping = FT_BOOL( hint_mode == FT_RENDER_MODE_MONO || + hint_mode == FT_RENDER_MODE_LCD ); + + glyph->do_vert_snapping = FT_BOOL( hint_mode == FT_RENDER_MODE_MONO || + hint_mode == FT_RENDER_MODE_LCD_V ); + + glyph->do_stem_adjust = FT_BOOL( hint_mode != FT_RENDER_MODE_LIGHT ); + + for ( dimension = 0; dimension < 2; dimension++ ) + { + /* load outline coordinates into glyph */ + psh_glyph_load_points( glyph, dimension ); + + /* compute local extrema */ + psh_glyph_compute_extrema( glyph ); + + /* compute aligned stem/hints positions */ + psh_hint_table_align_hints( &glyph->hint_tables[dimension], + glyph->globals, + dimension, + glyph ); + + /* find strong points, align them, then interpolate others */ + psh_glyph_find_strong_points( glyph, dimension ); + if ( dimension == 1 ) + psh_glyph_find_blue_points( &globals->blues, glyph ); + psh_glyph_interpolate_strong_points( glyph, dimension ); + psh_glyph_interpolate_normal_points( glyph, dimension ); + psh_glyph_interpolate_other_points( glyph, dimension ); + + /* save hinted coordinates back to outline */ + psh_glyph_save_points( glyph, dimension ); + + if ( rescale ) + psh_globals_set_scale( glyph->globals, + old_x_scale, old_y_scale, 0, 0 ); + } + } + + Exit: + +#ifndef DEBUG_HINTER + psh_glyph_done( glyph ); +#endif + + return error; + } + + +/* END */ diff --git a/src/pshinter/pshalgo.h b/src/pshinter/pshalgo.h new file mode 100644 index 0000000..1a248a7 --- /dev/null +++ b/src/pshinter/pshalgo.h @@ -0,0 +1,255 @@ +/***************************************************************************/ +/* */ +/* pshalgo.h */ +/* */ +/* PostScript hinting algorithm (specification). */ +/* */ +/* Copyright 2001, 2002, 2003, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSHALGO_H__ +#define __PSHALGO_H__ + + +#include "pshrec.h" +#include "pshglob.h" +#include FT_TRIGONOMETRY_H + + +FT_BEGIN_HEADER + + + /* handle to Hint structure */ + typedef struct PSH_HintRec_* PSH_Hint; + + /* hint bit-flags */ + typedef enum PSH_Hint_Flags_ + { + PSH_HINT_GHOST = PS_HINT_FLAG_GHOST, + PSH_HINT_BOTTOM = PS_HINT_FLAG_BOTTOM, + PSH_HINT_ACTIVE = 4, + PSH_HINT_FITTED = 8 + + } PSH_Hint_Flags; + + +#define psh_hint_is_active( x ) ( ( (x)->flags & PSH_HINT_ACTIVE ) != 0 ) +#define psh_hint_is_ghost( x ) ( ( (x)->flags & PSH_HINT_GHOST ) != 0 ) +#define psh_hint_is_fitted( x ) ( ( (x)->flags & PSH_HINT_FITTED ) != 0 ) + +#define psh_hint_activate( x ) (x)->flags |= PSH_HINT_ACTIVE +#define psh_hint_deactivate( x ) (x)->flags &= ~PSH_HINT_ACTIVE +#define psh_hint_set_fitted( x ) (x)->flags |= PSH_HINT_FITTED + + /* hint structure */ + typedef struct PSH_HintRec_ + { + FT_Int org_pos; + FT_Int org_len; + FT_Pos cur_pos; + FT_Pos cur_len; + FT_UInt flags; + PSH_Hint parent; + FT_Int order; + + } PSH_HintRec; + + + /* this is an interpolation zone used for strong points; */ + /* weak points are interpolated according to their strong */ + /* neighbours */ + typedef struct PSH_ZoneRec_ + { + FT_Fixed scale; + FT_Fixed delta; + FT_Pos min; + FT_Pos max; + + } PSH_ZoneRec, *PSH_Zone; + + + typedef struct PSH_Hint_TableRec_ + { + FT_UInt max_hints; + FT_UInt num_hints; + PSH_Hint hints; + PSH_Hint* sort; + PSH_Hint* sort_global; + FT_UInt num_zones; + PSH_ZoneRec* zones; + PSH_Zone zone; + PS_Mask_Table hint_masks; + PS_Mask_Table counter_masks; + + } PSH_Hint_TableRec, *PSH_Hint_Table; + + + typedef struct PSH_PointRec_* PSH_Point; + typedef struct PSH_ContourRec_* PSH_Contour; + + enum + { + PSH_DIR_NONE = 4, + PSH_DIR_UP = -1, + PSH_DIR_DOWN = 1, + PSH_DIR_LEFT = -2, + PSH_DIR_RIGHT = 2 + }; + +#define PSH_DIR_HORIZONTAL 2 +#define PSH_DIR_VERTICAL 1 + +#define PSH_DIR_COMPARE( d1, d2 ) ( (d1) == (d2) || (d1) == -(d2) ) +#define PSH_DIR_IS_HORIZONTAL( d ) PSH_DIR_COMPARE( d, PSH_DIR_HORIZONTAL ) +#define PSH_DIR_IS_VERTICAL( d ) PSH_DIR_COMPARE( d, PSH_DIR_VERTICAL ) + + + /* the following bit-flags are computed once by the glyph */ + /* analyzer, for both dimensions */ + enum + { + PSH_POINT_OFF = 1, /* point is off the curve */ + PSH_POINT_SMOOTH = 2, /* point is smooth */ + PSH_POINT_INFLEX = 4 /* point is inflection */ + }; + +#define psh_point_is_smooth( p ) ( (p)->flags & PSH_POINT_SMOOTH ) +#define psh_point_is_off( p ) ( (p)->flags & PSH_POINT_OFF ) +#define psh_point_is_inflex( p ) ( (p)->flags & PSH_POINT_INFLEX ) + +#define psh_point_set_smooth( p ) (p)->flags |= PSH_POINT_SMOOTH +#define psh_point_set_off( p ) (p)->flags |= PSH_POINT_OFF +#define psh_point_set_inflex( p ) (p)->flags |= PSH_POINT_INFLEX + + /* the following bit-flags are re-computed for each dimension */ + enum + { + PSH_POINT_STRONG = 16, /* point is strong */ + PSH_POINT_FITTED = 32, /* point is already fitted */ + PSH_POINT_EXTREMUM = 64, /* point is local extremum */ + PSH_POINT_POSITIVE = 128, /* extremum has positive contour flow */ + PSH_POINT_NEGATIVE = 256, /* extremum has negative contour flow */ + PSH_POINT_EDGE_MIN = 512, /* point is aligned to left/bottom stem edge */ + PSH_POINT_EDGE_MAX = 1024 /* point is aligned to top/right stem edge */ + }; + +#define psh_point_is_strong( p ) ( (p)->flags2 & PSH_POINT_STRONG ) +#define psh_point_is_fitted( p ) ( (p)->flags2 & PSH_POINT_FITTED ) +#define psh_point_is_extremum( p ) ( (p)->flags2 & PSH_POINT_EXTREMUM ) +#define psh_point_is_positive( p ) ( (p)->flags2 & PSH_POINT_POSITIVE ) +#define psh_point_is_negative( p ) ( (p)->flags2 & PSH_POINT_NEGATIVE ) +#define psh_point_is_edge_min( p ) ( (p)->flags2 & PSH_POINT_EDGE_MIN ) +#define psh_point_is_edge_max( p ) ( (p)->flags2 & PSH_POINT_EDGE_MAX ) + +#define psh_point_set_strong( p ) (p)->flags2 |= PSH_POINT_STRONG +#define psh_point_set_fitted( p ) (p)->flags2 |= PSH_POINT_FITTED +#define psh_point_set_extremum( p ) (p)->flags2 |= PSH_POINT_EXTREMUM +#define psh_point_set_positive( p ) (p)->flags2 |= PSH_POINT_POSITIVE +#define psh_point_set_negative( p ) (p)->flags2 |= PSH_POINT_NEGATIVE +#define psh_point_set_edge_min( p ) (p)->flags2 |= PSH_POINT_EDGE_MIN +#define psh_point_set_edge_max( p ) (p)->flags2 |= PSH_POINT_EDGE_MAX + + + typedef struct PSH_PointRec_ + { + PSH_Point prev; + PSH_Point next; + PSH_Contour contour; + FT_UInt flags; + FT_UInt flags2; + FT_Char dir_in; + FT_Char dir_out; + FT_Angle angle_in; + FT_Angle angle_out; + PSH_Hint hint; + FT_Pos org_u; + FT_Pos org_v; + FT_Pos cur_u; +#ifdef DEBUG_HINTER + FT_Pos org_x; + FT_Pos cur_x; + FT_Pos org_y; + FT_Pos cur_y; + FT_UInt flags_x; + FT_UInt flags_y; +#endif + + } PSH_PointRec; + + +#define PSH_POINT_EQUAL_ORG( a, b ) ( (a)->org_u == (b)->org_u && \ + (a)->org_v == (b)->org_v ) + +#define PSH_POINT_ANGLE( a, b ) FT_Atan2( (b)->org_u - (a)->org_u, \ + (b)->org_v - (a)->org_v ) + + typedef struct PSH_ContourRec_ + { + PSH_Point start; + FT_UInt count; + + } PSH_ContourRec; + + + typedef struct PSH_GlyphRec_ + { + FT_UInt num_points; + FT_UInt num_contours; + + PSH_Point points; + PSH_Contour contours; + + FT_Memory memory; + FT_Outline* outline; + PSH_Globals globals; + PSH_Hint_TableRec hint_tables[2]; + + FT_Bool vertical; + FT_Int major_dir; + FT_Int minor_dir; + + FT_Bool do_horz_hints; + FT_Bool do_vert_hints; + FT_Bool do_horz_snapping; + FT_Bool do_vert_snapping; + FT_Bool do_stem_adjust; + + } PSH_GlyphRec, *PSH_Glyph; + + +#ifdef DEBUG_HINTER + extern PSH_Hint_Table ps_debug_hint_table; + + typedef void + (*PSH_HintFunc)( PSH_Hint hint, + FT_Bool vertical ); + + extern PSH_HintFunc ps_debug_hint_func; + + extern PSH_Glyph ps_debug_glyph; +#endif + + + extern FT_Error + ps_hints_apply( PS_Hints ps_hints, + FT_Outline* outline, + PSH_Globals globals, + FT_Render_Mode hint_mode ); + + +FT_END_HEADER + + +#endif /* __PSHALGO_H__ */ + + +/* END */ diff --git a/src/pshinter/pshglob.c b/src/pshinter/pshglob.c new file mode 100644 index 0000000..31231ad --- /dev/null +++ b/src/pshinter/pshglob.c @@ -0,0 +1,750 @@ +/***************************************************************************/ +/* */ +/* pshglob.c */ +/* */ +/* PostScript hinter global hinting management (body). */ +/* Inspired by the new auto-hinter module. */ +/* */ +/* Copyright 2001, 2002, 2003, 2004, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used */ +/* modified and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "pshglob.h" + +#ifdef DEBUG_HINTER + PSH_Globals ps_debug_globals = 0; +#endif + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** STANDARD WIDTHS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* scale the widths/heights table */ + static void + psh_globals_scale_widths( PSH_Globals globals, + FT_UInt direction ) + { + PSH_Dimension dim = &globals->dimension[direction]; + PSH_Widths stdw = &dim->stdw; + FT_UInt count = stdw->count; + PSH_Width width = stdw->widths; + PSH_Width stand = width; /* standard width/height */ + FT_Fixed scale = dim->scale_mult; + + + if ( count > 0 ) + { + width->cur = FT_MulFix( width->org, scale ); + width->fit = FT_PIX_ROUND( width->cur ); + + width++; + count--; + + for ( ; count > 0; count--, width++ ) + { + FT_Pos w, dist; + + + w = FT_MulFix( width->org, scale ); + dist = w - stand->cur; + + if ( dist < 0 ) + dist = -dist; + + if ( dist < 128 ) + w = stand->cur; + + width->cur = w; + width->fit = FT_PIX_ROUND( w ); + } + } + } + + +#if 0 + + /* org_width is is font units, result in device pixels, 26.6 format */ + FT_LOCAL_DEF( FT_Pos ) + psh_dimension_snap_width( PSH_Dimension dimension, + FT_Int org_width ) + { + FT_UInt n; + FT_Pos width = FT_MulFix( org_width, dimension->scale_mult ); + FT_Pos best = 64 + 32 + 2; + FT_Pos reference = width; + + + for ( n = 0; n < dimension->stdw.count; n++ ) + { + FT_Pos w; + FT_Pos dist; + + + w = dimension->stdw.widths[n].cur; + dist = width - w; + if ( dist < 0 ) + dist = -dist; + if ( dist < best ) + { + best = dist; + reference = w; + } + } + + if ( width >= reference ) + { + width -= 0x21; + if ( width < reference ) + width = reference; + } + else + { + width += 0x21; + if ( width > reference ) + width = reference; + } + + return width; + } + +#endif /* 0 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** BLUE ZONES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + psh_blues_set_zones_0( PSH_Blues target, + FT_Bool is_others, + FT_UInt read_count, + FT_Short* read, + PSH_Blue_Table top_table, + PSH_Blue_Table bot_table ) + { + FT_UInt count_top = top_table->count; + FT_UInt count_bot = bot_table->count; + FT_Bool first = 1; + + FT_UNUSED( target ); + + + for ( ; read_count > 1; read_count -= 2 ) + { + FT_Int reference, delta; + FT_UInt count; + PSH_Blue_Zone zones, zone; + FT_Bool top; + + + /* read blue zone entry, and select target top/bottom zone */ + top = 0; + if ( first || is_others ) + { + reference = read[1]; + delta = read[0] - reference; + + zones = bot_table->zones; + count = count_bot; + first = 0; + } + else + { + reference = read[0]; + delta = read[1] - reference; + + zones = top_table->zones; + count = count_top; + top = 1; + } + + /* insert into sorted table */ + zone = zones; + for ( ; count > 0; count--, zone++ ) + { + if ( reference < zone->org_ref ) + break; + + if ( reference == zone->org_ref ) + { + FT_Int delta0 = zone->org_delta; + + + /* we have two zones on the same reference position -- */ + /* only keep the largest one */ + if ( delta < 0 ) + { + if ( delta < delta0 ) + zone->org_delta = delta; + } + else + { + if ( delta > delta0 ) + zone->org_delta = delta; + } + goto Skip; + } + } + + for ( ; count > 0; count-- ) + zone[count] = zone[count-1]; + + zone->org_ref = reference; + zone->org_delta = delta; + + if ( top ) + count_top++; + else + count_bot++; + + Skip: + read += 2; + } + + top_table->count = count_top; + bot_table->count = count_bot; + } + + + /* Re-read blue zones from the original fonts and store them into out */ + /* private structure. This function re-orders, sanitizes and */ + /* fuzz-expands the zones as well. */ + static void + psh_blues_set_zones( PSH_Blues target, + FT_UInt count, + FT_Short* blues, + FT_UInt count_others, + FT_Short* other_blues, + FT_Int fuzz, + FT_Int family ) + { + PSH_Blue_Table top_table, bot_table; + FT_Int count_top, count_bot; + + + if ( family ) + { + top_table = &target->family_top; + bot_table = &target->family_bottom; + } + else + { + top_table = &target->normal_top; + bot_table = &target->normal_bottom; + } + + /* read the input blue zones, and build two sorted tables */ + /* (one for the top zones, the other for the bottom zones) */ + top_table->count = 0; + bot_table->count = 0; + + /* first, the blues */ + psh_blues_set_zones_0( target, 0, + count, blues, top_table, bot_table ); + psh_blues_set_zones_0( target, 1, + count_others, other_blues, top_table, bot_table ); + + count_top = top_table->count; + count_bot = bot_table->count; + + /* sanitize top table */ + if ( count_top > 0 ) + { + PSH_Blue_Zone zone = top_table->zones; + + + for ( count = count_top; count > 0; count--, zone++ ) + { + FT_Int delta; + + + if ( count > 1 ) + { + delta = zone[1].org_ref - zone[0].org_ref; + if ( zone->org_delta > delta ) + zone->org_delta = delta; + } + + zone->org_bottom = zone->org_ref; + zone->org_top = zone->org_delta + zone->org_ref; + } + } + + /* sanitize bottom table */ + if ( count_bot > 0 ) + { + PSH_Blue_Zone zone = bot_table->zones; + + + for ( count = count_bot; count > 0; count--, zone++ ) + { + FT_Int delta; + + + if ( count > 1 ) + { + delta = zone[0].org_ref - zone[1].org_ref; + if ( zone->org_delta < delta ) + zone->org_delta = delta; + } + + zone->org_top = zone->org_ref; + zone->org_bottom = zone->org_delta + zone->org_ref; + } + } + + /* expand top and bottom tables with blue fuzz */ + { + FT_Int dim, top, bot, delta; + PSH_Blue_Zone zone; + + + zone = top_table->zones; + count = count_top; + + for ( dim = 1; dim >= 0; dim-- ) + { + if ( count > 0 ) + { + /* expand the bottom of the lowest zone normally */ + zone->org_bottom -= fuzz; + + /* expand the top and bottom of intermediate zones; */ + /* checking that the interval is smaller than the fuzz */ + top = zone->org_top; + + for ( count--; count > 0; count-- ) + { + bot = zone[1].org_bottom; + delta = bot - top; + + if ( delta < 2 * fuzz ) + zone[0].org_top = zone[1].org_bottom = top + delta / 2; + else + { + zone[0].org_top = top + fuzz; + zone[1].org_bottom = bot - fuzz; + } + + zone++; + top = zone->org_top; + } + + /* expand the top of the highest zone normally */ + zone->org_top = top + fuzz; + } + zone = bot_table->zones; + count = count_bot; + } + } + } + + + /* reset the blues table when the device transform changes */ + static void + psh_blues_scale_zones( PSH_Blues blues, + FT_Fixed scale, + FT_Pos delta ) + { + FT_UInt count; + FT_UInt num; + PSH_Blue_Table table = 0; + + /* */ + /* Determine whether we need to suppress overshoots or */ + /* not. We simply need to compare the vertical scale */ + /* parameter to the raw bluescale value. Here is why: */ + /* */ + /* We need to suppress overshoots for all pointsizes. */ + /* At 300dpi that satisfies: */ + /* */ + /* pointsize < 240*bluescale + 0.49 */ + /* */ + /* This corresponds to: */ + /* */ + /* pixelsize < 1000*bluescale + 49/24 */ + /* */ + /* scale*EM_Size < 1000*bluescale + 49/24 */ + /* */ + /* However, for normal Type 1 fonts, EM_Size is 1000! */ + /* We thus only check: */ + /* */ + /* scale < bluescale + 49/24000 */ + /* */ + /* which we shorten to */ + /* */ + /* "scale < bluescale" */ + /* */ + /* Note that `blue_scale' is stored 1000 times its real */ + /* value, and that `scale' converts from font units to */ + /* fractional pixels. */ + /* */ + + /* 1000 / 64 = 125 / 8 */ + if ( scale >= 0x20C49BAL ) + blues->no_overshoots = FT_BOOL( scale < blues->blue_scale * 8 / 125 ); + else + blues->no_overshoots = FT_BOOL( scale * 125 < blues->blue_scale * 8 ); + + /* */ + /* The blue threshold is the font units distance under */ + /* which overshoots are suppressed due to the BlueShift */ + /* even if the scale is greater than BlueScale. */ + /* */ + /* It is the smallest distance such that */ + /* */ + /* dist <= BlueShift && dist*scale <= 0.5 pixels */ + /* */ + { + FT_Int threshold = blues->blue_shift; + + + while ( threshold > 0 && FT_MulFix( threshold, scale ) > 32 ) + threshold--; + + blues->blue_threshold = threshold; + } + + for ( num = 0; num < 4; num++ ) + { + PSH_Blue_Zone zone; + + + switch ( num ) + { + case 0: + table = &blues->normal_top; + break; + case 1: + table = &blues->normal_bottom; + break; + case 2: + table = &blues->family_top; + break; + default: + table = &blues->family_bottom; + break; + } + + zone = table->zones; + count = table->count; + for ( ; count > 0; count--, zone++ ) + { + zone->cur_top = FT_MulFix( zone->org_top, scale ) + delta; + zone->cur_bottom = FT_MulFix( zone->org_bottom, scale ) + delta; + zone->cur_ref = FT_MulFix( zone->org_ref, scale ) + delta; + zone->cur_delta = FT_MulFix( zone->org_delta, scale ); + + /* round scaled reference position */ + zone->cur_ref = FT_PIX_ROUND( zone->cur_ref ); + +#if 0 + if ( zone->cur_ref > zone->cur_top ) + zone->cur_ref -= 64; + else if ( zone->cur_ref < zone->cur_bottom ) + zone->cur_ref += 64; +#endif + } + } + + /* process the families now */ + + for ( num = 0; num < 2; num++ ) + { + PSH_Blue_Zone zone1, zone2; + FT_UInt count1, count2; + PSH_Blue_Table normal, family; + + + switch ( num ) + { + case 0: + normal = &blues->normal_top; + family = &blues->family_top; + break; + + default: + normal = &blues->normal_bottom; + family = &blues->family_bottom; + } + + zone1 = normal->zones; + count1 = normal->count; + + for ( ; count1 > 0; count1--, zone1++ ) + { + /* try to find a family zone whose reference position is less */ + /* than 1 pixel far from the current zone */ + zone2 = family->zones; + count2 = family->count; + + for ( ; count2 > 0; count2--, zone2++ ) + { + FT_Pos Delta; + + + Delta = zone1->org_ref - zone2->org_ref; + if ( Delta < 0 ) + Delta = -Delta; + + if ( FT_MulFix( Delta, scale ) < 64 ) + { + zone1->cur_top = zone2->cur_top; + zone1->cur_bottom = zone2->cur_bottom; + zone1->cur_ref = zone2->cur_ref; + zone1->cur_delta = zone2->cur_delta; + break; + } + } + } + } + } + + + FT_LOCAL_DEF( void ) + psh_blues_snap_stem( PSH_Blues blues, + FT_Int stem_top, + FT_Int stem_bot, + PSH_Alignment alignment ) + { + PSH_Blue_Table table; + FT_UInt count; + FT_Pos delta; + PSH_Blue_Zone zone; + FT_Int no_shoots; + + + alignment->align = PSH_BLUE_ALIGN_NONE; + + no_shoots = blues->no_overshoots; + + /* look up stem top in top zones table */ + table = &blues->normal_top; + count = table->count; + zone = table->zones; + + for ( ; count > 0; count--, zone++ ) + { + delta = stem_top - zone->org_bottom; + if ( delta < -blues->blue_fuzz ) + break; + + if ( stem_top <= zone->org_top + blues->blue_fuzz ) + { + if ( no_shoots || delta <= blues->blue_threshold ) + { + alignment->align |= PSH_BLUE_ALIGN_TOP; + alignment->align_top = zone->cur_ref; + } + break; + } + } + + /* look up stem bottom in bottom zones table */ + table = &blues->normal_bottom; + count = table->count; + zone = table->zones + count-1; + + for ( ; count > 0; count--, zone-- ) + { + delta = zone->org_top - stem_bot; + if ( delta < -blues->blue_fuzz ) + break; + + if ( stem_bot >= zone->org_bottom - blues->blue_fuzz ) + { + if ( no_shoots || delta < blues->blue_threshold ) + { + alignment->align |= PSH_BLUE_ALIGN_BOT; + alignment->align_bot = zone->cur_ref; + } + break; + } + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GLOBAL HINTS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + psh_globals_destroy( PSH_Globals globals ) + { + if ( globals ) + { + FT_Memory memory; + + + memory = globals->memory; + globals->dimension[0].stdw.count = 0; + globals->dimension[1].stdw.count = 0; + + globals->blues.normal_top.count = 0; + globals->blues.normal_bottom.count = 0; + globals->blues.family_top.count = 0; + globals->blues.family_bottom.count = 0; + + FT_FREE( globals ); + +#ifdef DEBUG_HINTER + ps_debug_globals = 0; +#endif + } + } + + + static FT_Error + psh_globals_new( FT_Memory memory, + T1_Private* priv, + PSH_Globals *aglobals ) + { + PSH_Globals globals = NULL; + FT_Error error; + + + if ( !FT_NEW( globals ) ) + { + FT_UInt count; + FT_Short* read; + + + globals->memory = memory; + + /* copy standard widths */ + { + PSH_Dimension dim = &globals->dimension[1]; + PSH_Width write = dim->stdw.widths; + + + write->org = priv->standard_width[0]; + write++; + + read = priv->snap_widths; + for ( count = priv->num_snap_widths; count > 0; count-- ) + { + write->org = *read; + write++; + read++; + } + + dim->stdw.count = priv->num_snap_widths + 1; + } + + /* copy standard heights */ + { + PSH_Dimension dim = &globals->dimension[0]; + PSH_Width write = dim->stdw.widths; + + + write->org = priv->standard_height[0]; + write++; + read = priv->snap_heights; + for ( count = priv->num_snap_heights; count > 0; count-- ) + { + write->org = *read; + write++; + read++; + } + + dim->stdw.count = priv->num_snap_heights + 1; + } + + /* copy blue zones */ + psh_blues_set_zones( &globals->blues, priv->num_blue_values, + priv->blue_values, priv->num_other_blues, + priv->other_blues, priv->blue_fuzz, 0 ); + + psh_blues_set_zones( &globals->blues, priv->num_family_blues, + priv->family_blues, priv->num_family_other_blues, + priv->family_other_blues, priv->blue_fuzz, 1 ); + + globals->blues.blue_scale = priv->blue_scale; + globals->blues.blue_shift = priv->blue_shift; + globals->blues.blue_fuzz = priv->blue_fuzz; + + globals->dimension[0].scale_mult = 0; + globals->dimension[0].scale_delta = 0; + globals->dimension[1].scale_mult = 0; + globals->dimension[1].scale_delta = 0; + +#ifdef DEBUG_HINTER + ps_debug_globals = globals; +#endif + } + + *aglobals = globals; + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + psh_globals_set_scale( PSH_Globals globals, + FT_Fixed x_scale, + FT_Fixed y_scale, + FT_Fixed x_delta, + FT_Fixed y_delta ) + { + PSH_Dimension dim = &globals->dimension[0]; + + + dim = &globals->dimension[0]; + if ( x_scale != dim->scale_mult || + x_delta != dim->scale_delta ) + { + dim->scale_mult = x_scale; + dim->scale_delta = x_delta; + + psh_globals_scale_widths( globals, 0 ); + } + + dim = &globals->dimension[1]; + if ( y_scale != dim->scale_mult || + y_delta != dim->scale_delta ) + { + dim->scale_mult = y_scale; + dim->scale_delta = y_delta; + + psh_globals_scale_widths( globals, 1 ); + psh_blues_scale_zones( &globals->blues, y_scale, y_delta ); + } + + return 0; + } + + + FT_LOCAL_DEF( void ) + psh_globals_funcs_init( PSH_Globals_FuncsRec* funcs ) + { + funcs->create = psh_globals_new; + funcs->set_scale = psh_globals_set_scale; + funcs->destroy = psh_globals_destroy; + } + + +/* END */ diff --git a/src/pshinter/pshglob.h b/src/pshinter/pshglob.h new file mode 100644 index 0000000..c511626 --- /dev/null +++ b/src/pshinter/pshglob.h @@ -0,0 +1,196 @@ +/***************************************************************************/ +/* */ +/* pshglob.h */ +/* */ +/* PostScript hinter global hinting management. */ +/* */ +/* Copyright 2001, 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSHGLOB_H__ +#define __PSHGLOB_H__ + + +#include FT_FREETYPE_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GLOBAL HINTS INTERNALS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* @constant: */ + /* PS_GLOBALS_MAX_BLUE_ZONES */ + /* */ + /* @description: */ + /* The maximum number of blue zones in a font global hints structure. */ + /* See @PS_Globals_BluesRec. */ + /* */ +#define PS_GLOBALS_MAX_BLUE_ZONES 16 + + + /*************************************************************************/ + /* */ + /* @constant: */ + /* PS_GLOBALS_MAX_STD_WIDTHS */ + /* */ + /* @description: */ + /* The maximum number of standard and snap widths in either the */ + /* horizontal or vertical direction. See @PS_Globals_WidthsRec. */ + /* */ +#define PS_GLOBALS_MAX_STD_WIDTHS 16 + + + /* standard and snap width */ + typedef struct PSH_WidthRec_ + { + FT_Int org; + FT_Pos cur; + FT_Pos fit; + + } PSH_WidthRec, *PSH_Width; + + + /* standard and snap widths table */ + typedef struct PSH_WidthsRec_ + { + FT_UInt count; + PSH_WidthRec widths[PS_GLOBALS_MAX_STD_WIDTHS]; + + } PSH_WidthsRec, *PSH_Widths; + + + typedef struct PSH_DimensionRec_ + { + PSH_WidthsRec stdw; + FT_Fixed scale_mult; + FT_Fixed scale_delta; + + } PSH_DimensionRec, *PSH_Dimension; + + + /* blue zone descriptor */ + typedef struct PSH_Blue_ZoneRec_ + { + FT_Int org_ref; + FT_Int org_delta; + FT_Int org_top; + FT_Int org_bottom; + + FT_Pos cur_ref; + FT_Pos cur_delta; + FT_Pos cur_bottom; + FT_Pos cur_top; + + } PSH_Blue_ZoneRec, *PSH_Blue_Zone; + + + typedef struct PSH_Blue_TableRec_ + { + FT_UInt count; + PSH_Blue_ZoneRec zones[PS_GLOBALS_MAX_BLUE_ZONES]; + + } PSH_Blue_TableRec, *PSH_Blue_Table; + + + /* blue zones table */ + typedef struct PSH_BluesRec_ + { + PSH_Blue_TableRec normal_top; + PSH_Blue_TableRec normal_bottom; + PSH_Blue_TableRec family_top; + PSH_Blue_TableRec family_bottom; + + FT_Fixed blue_scale; + FT_Int blue_shift; + FT_Int blue_threshold; + FT_Int blue_fuzz; + FT_Bool no_overshoots; + + } PSH_BluesRec, *PSH_Blues; + + + /* font globals. */ + /* dimension 0 => X coordinates + vertical hints/stems */ + /* dimension 1 => Y coordinates + horizontal hints/stems */ + typedef struct PSH_GlobalsRec_ + { + FT_Memory memory; + PSH_DimensionRec dimension[2]; + PSH_BluesRec blues; + + } PSH_GlobalsRec; + + +#define PSH_BLUE_ALIGN_NONE 0 +#define PSH_BLUE_ALIGN_TOP 1 +#define PSH_BLUE_ALIGN_BOT 2 + + + typedef struct PSH_AlignmentRec_ + { + int align; + FT_Pos align_top; + FT_Pos align_bot; + + } PSH_AlignmentRec, *PSH_Alignment; + + + FT_LOCAL( void ) + psh_globals_funcs_init( PSH_Globals_FuncsRec* funcs ); + + +#if 0 + /* snap a stem width to fitter coordinates. `org_width' is in font */ + /* units. The result is in device pixels (26.6 format). */ + FT_LOCAL( FT_Pos ) + psh_dimension_snap_width( PSH_Dimension dimension, + FT_Int org_width ); +#endif + + FT_LOCAL( FT_Error ) + psh_globals_set_scale( PSH_Globals globals, + FT_Fixed x_scale, + FT_Fixed y_scale, + FT_Fixed x_delta, + FT_Fixed y_delta ); + + /* snap a stem to one or two blue zones */ + FT_LOCAL( void ) + psh_blues_snap_stem( PSH_Blues blues, + FT_Int stem_top, + FT_Int stem_bot, + PSH_Alignment alignment ); + /* */ + +#ifdef DEBUG_HINTER + extern PSH_Globals ps_debug_globals; +#endif + + +FT_END_HEADER + + +#endif /* __PSHGLOB_H__ */ + + +/* END */ diff --git a/src/pshinter/pshinter.c b/src/pshinter/pshinter.c new file mode 100644 index 0000000..b35a2a9 --- /dev/null +++ b/src/pshinter/pshinter.c @@ -0,0 +1,29 @@ +/***************************************************************************/ +/* */ +/* pshinter.c */ +/* */ +/* FreeType PostScript Hinting module */ +/* */ +/* Copyright 2001, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> +#include "pshpic.c" +#include "pshrec.c" +#include "pshglob.c" +#include "pshalgo.c" +#include "pshmod.c" + + +/* END */ diff --git a/src/pshinter/pshmod.c b/src/pshinter/pshmod.c new file mode 100644 index 0000000..91da5d7 --- /dev/null +++ b/src/pshinter/pshmod.c @@ -0,0 +1,118 @@ +/***************************************************************************/ +/* */ +/* pshmod.c */ +/* */ +/* FreeType PostScript hinter module implementation (body). */ +/* */ +/* Copyright 2001, 2002, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include "pshrec.h" +#include "pshalgo.h" +#include "pshpic.h" + + + /* the Postscript Hinter module structure */ + typedef struct PS_Hinter_Module_Rec_ + { + FT_ModuleRec root; + PS_HintsRec ps_hints; + + PSH_Globals_FuncsRec globals_funcs; + T1_Hints_FuncsRec t1_funcs; + T2_Hints_FuncsRec t2_funcs; + + } PS_Hinter_ModuleRec, *PS_Hinter_Module; + + + /* finalize module */ + FT_CALLBACK_DEF( void ) + ps_hinter_done( PS_Hinter_Module module ) + { + module->t1_funcs.hints = NULL; + module->t2_funcs.hints = NULL; + + ps_hints_done( &module->ps_hints ); + } + + + /* initialize module, create hints recorder and the interface */ + FT_CALLBACK_DEF( FT_Error ) + ps_hinter_init( PS_Hinter_Module module ) + { + FT_Memory memory = module->root.memory; + void* ph = &module->ps_hints; + + + ps_hints_init( &module->ps_hints, memory ); + + psh_globals_funcs_init( &module->globals_funcs ); + + t1_hints_funcs_init( &module->t1_funcs ); + module->t1_funcs.hints = (T1_Hints)ph; + + t2_hints_funcs_init( &module->t2_funcs ); + module->t2_funcs.hints = (T2_Hints)ph; + + return 0; + } + + + /* returns global hints interface */ + FT_CALLBACK_DEF( PSH_Globals_Funcs ) + pshinter_get_globals_funcs( FT_Module module ) + { + return &((PS_Hinter_Module)module)->globals_funcs; + } + + + /* return Type 1 hints interface */ + FT_CALLBACK_DEF( T1_Hints_Funcs ) + pshinter_get_t1_funcs( FT_Module module ) + { + return &((PS_Hinter_Module)module)->t1_funcs; + } + + + /* return Type 2 hints interface */ + FT_CALLBACK_DEF( T2_Hints_Funcs ) + pshinter_get_t2_funcs( FT_Module module ) + { + return &((PS_Hinter_Module)module)->t2_funcs; + } + + + FT_DEFINE_PSHINTER_INTERFACE(pshinter_interface, + pshinter_get_globals_funcs, + pshinter_get_t1_funcs, + pshinter_get_t2_funcs + ) + + + FT_DEFINE_MODULE(pshinter_module_class, + + 0, + sizeof ( PS_Hinter_ModuleRec ), + "pshinter", + 0x10000L, + 0x20000L, + + &FTPSHINTER_INTERFACE_GET, /* module-specific interface */ + + (FT_Module_Constructor)ps_hinter_init, + (FT_Module_Destructor) ps_hinter_done, + (FT_Module_Requester) 0 /* no additional interface for now */ + ) + +/* END */ diff --git a/src/pshinter/pshmod.h b/src/pshinter/pshmod.h new file mode 100644 index 0000000..0ae7e96 --- /dev/null +++ b/src/pshinter/pshmod.h @@ -0,0 +1,39 @@ +/***************************************************************************/ +/* */ +/* pshmod.h */ +/* */ +/* PostScript hinter module interface (specification). */ +/* */ +/* Copyright 2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSHMOD_H__ +#define __PSHMOD_H__ + + +#include <ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + + + FT_DECLARE_MODULE( pshinter_module_class ) + + +FT_END_HEADER + + +#endif /* __PSHMOD_H__ */ + + +/* END */ diff --git a/src/pshinter/pshnterr.h b/src/pshinter/pshnterr.h new file mode 100644 index 0000000..7cc180f --- /dev/null +++ b/src/pshinter/pshnterr.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* pshnterr.h */ +/* */ +/* PS Hinter error codes (specification only). */ +/* */ +/* Copyright 2003, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the PSHinter error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __PSHNTERR_H__ +#define __PSHNTERR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX PSH_Err_ +#define FT_ERR_BASE FT_Mod_Err_PShinter + +#include FT_ERRORS_H + +#endif /* __PSHNTERR_H__ */ + + +/* END */ diff --git a/src/pshinter/pshpic.c b/src/pshinter/pshpic.c new file mode 100644 index 0000000..1e0f9a9 --- /dev/null +++ b/src/pshinter/pshpic.c @@ -0,0 +1,75 @@ +/***************************************************************************/ +/* */ +/* pshpic.c */ +/* */ +/* The FreeType position independent code services for pshinter module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "pshpic.h" +#include "pshnterr.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from pshmod.c */ + void + FT_Init_Class_pshinter_interface( FT_Library library, + PSHinter_Interface* clazz ); + + void + pshinter_module_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + + + if ( pic_container->pshinter ) + { + FT_FREE( pic_container->pshinter ); + pic_container->pshinter = NULL; + } + } + + + FT_Error + pshinter_module_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = PSH_Err_Ok; + PSHinterPIC* container; + FT_Memory memory = library->memory; + + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->pshinter = container; + + /* add call to initialization function when you add new scripts */ + FT_Init_Class_pshinter_interface( + library, &container->pshinter_interface ); + +/*Exit:*/ + if( error ) + pshinter_module_class_pic_free( library ); + return error; + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + +/* END */ diff --git a/src/pshinter/pshpic.h b/src/pshinter/pshpic.h new file mode 100644 index 0000000..c10bdd9 --- /dev/null +++ b/src/pshinter/pshpic.h @@ -0,0 +1,59 @@ +/***************************************************************************/ +/* */ +/* pshpic.h */ +/* */ +/* The FreeType position independent code services for pshinter module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSHPIC_H__ +#define __PSHPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC + +#define FTPSHINTER_INTERFACE_GET pshinter_interface + +#else /* FT_CONFIG_OPTION_PIC */ + +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + + typedef struct PSHinterPIC_ + { + PSHinter_Interface pshinter_interface; + } PSHinterPIC; + +#define GET_PIC(lib) ((PSHinterPIC*)((lib)->pic_container.autofit)) +#define FTPSHINTER_INTERFACE_GET (GET_PIC(library)->pshinter_interface) + + /* see pshpic.c for the implementation */ + void + pshinter_module_class_pic_free( FT_Library library ); + + FT_Error + pshinter_module_class_pic_init( FT_Library library ); + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __PSHPIC_H__ */ + + +/* END */ diff --git a/src/pshinter/pshrec.c b/src/pshinter/pshrec.c new file mode 100644 index 0000000..0910cc5 --- /dev/null +++ b/src/pshinter/pshrec.c @@ -0,0 +1,1224 @@ +/***************************************************************************/ +/* */ +/* pshrec.c */ +/* */ +/* FreeType PostScript hints recorder (body). */ +/* */ +/* Copyright 2001, 2002, 2003, 2004, 2007, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_CALC_H + +#include "pshrec.h" +#include "pshalgo.h" + +#include "pshnterr.h" + +#undef FT_COMPONENT +#define FT_COMPONENT trace_pshrec + +#ifdef DEBUG_HINTER + PS_Hints ps_debug_hints = 0; + int ps_debug_no_horz_hints = 0; + int ps_debug_no_vert_hints = 0; +#endif + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PS_HINT MANAGEMENT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* destroy hints table */ + static void + ps_hint_table_done( PS_Hint_Table table, + FT_Memory memory ) + { + FT_FREE( table->hints ); + table->num_hints = 0; + table->max_hints = 0; + } + + + /* ensure that a table can contain "count" elements */ + static FT_Error + ps_hint_table_ensure( PS_Hint_Table table, + FT_UInt count, + FT_Memory memory ) + { + FT_UInt old_max = table->max_hints; + FT_UInt new_max = count; + FT_Error error = PSH_Err_Ok; + + + if ( new_max > old_max ) + { + /* try to grow the table */ + new_max = FT_PAD_CEIL( new_max, 8 ); + if ( !FT_RENEW_ARRAY( table->hints, old_max, new_max ) ) + table->max_hints = new_max; + } + return error; + } + + + static FT_Error + ps_hint_table_alloc( PS_Hint_Table table, + FT_Memory memory, + PS_Hint *ahint ) + { + FT_Error error = PSH_Err_Ok; + FT_UInt count; + PS_Hint hint = 0; + + + count = table->num_hints; + count++; + + if ( count >= table->max_hints ) + { + error = ps_hint_table_ensure( table, count, memory ); + if ( error ) + goto Exit; + } + + hint = table->hints + count - 1; + hint->pos = 0; + hint->len = 0; + hint->flags = 0; + + table->num_hints = count; + + Exit: + *ahint = hint; + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PS_MASK MANAGEMENT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* destroy mask */ + static void + ps_mask_done( PS_Mask mask, + FT_Memory memory ) + { + FT_FREE( mask->bytes ); + mask->num_bits = 0; + mask->max_bits = 0; + mask->end_point = 0; + } + + + /* ensure that a mask can contain "count" bits */ + static FT_Error + ps_mask_ensure( PS_Mask mask, + FT_UInt count, + FT_Memory memory ) + { + FT_UInt old_max = ( mask->max_bits + 7 ) >> 3; + FT_UInt new_max = ( count + 7 ) >> 3; + FT_Error error = PSH_Err_Ok; + + + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 8 ); + if ( !FT_RENEW_ARRAY( mask->bytes, old_max, new_max ) ) + mask->max_bits = new_max * 8; + } + return error; + } + + + /* test a bit value in a given mask */ + static FT_Int + ps_mask_test_bit( PS_Mask mask, + FT_Int idx ) + { + if ( (FT_UInt)idx >= mask->num_bits ) + return 0; + + return mask->bytes[idx >> 3] & ( 0x80 >> ( idx & 7 ) ); + } + + + /* clear a given bit */ + static void + ps_mask_clear_bit( PS_Mask mask, + FT_Int idx ) + { + FT_Byte* p; + + + if ( (FT_UInt)idx >= mask->num_bits ) + return; + + p = mask->bytes + ( idx >> 3 ); + p[0] = (FT_Byte)( p[0] & ~( 0x80 >> ( idx & 7 ) ) ); + } + + + /* set a given bit, possibly grow the mask */ + static FT_Error + ps_mask_set_bit( PS_Mask mask, + FT_Int idx, + FT_Memory memory ) + { + FT_Error error = PSH_Err_Ok; + FT_Byte* p; + + + if ( idx < 0 ) + goto Exit; + + if ( (FT_UInt)idx >= mask->num_bits ) + { + error = ps_mask_ensure( mask, idx + 1, memory ); + if ( error ) + goto Exit; + + mask->num_bits = idx + 1; + } + + p = mask->bytes + ( idx >> 3 ); + p[0] = (FT_Byte)( p[0] | ( 0x80 >> ( idx & 7 ) ) ); + + Exit: + return error; + } + + + /* destroy mask table */ + static void + ps_mask_table_done( PS_Mask_Table table, + FT_Memory memory ) + { + FT_UInt count = table->max_masks; + PS_Mask mask = table->masks; + + + for ( ; count > 0; count--, mask++ ) + ps_mask_done( mask, memory ); + + FT_FREE( table->masks ); + table->num_masks = 0; + table->max_masks = 0; + } + + + /* ensure that a mask table can contain "count" masks */ + static FT_Error + ps_mask_table_ensure( PS_Mask_Table table, + FT_UInt count, + FT_Memory memory ) + { + FT_UInt old_max = table->max_masks; + FT_UInt new_max = count; + FT_Error error = PSH_Err_Ok; + + + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 8 ); + if ( !FT_RENEW_ARRAY( table->masks, old_max, new_max ) ) + table->max_masks = new_max; + } + return error; + } + + + /* allocate a new mask in a table */ + static FT_Error + ps_mask_table_alloc( PS_Mask_Table table, + FT_Memory memory, + PS_Mask *amask ) + { + FT_UInt count; + FT_Error error = PSH_Err_Ok; + PS_Mask mask = 0; + + + count = table->num_masks; + count++; + + if ( count > table->max_masks ) + { + error = ps_mask_table_ensure( table, count, memory ); + if ( error ) + goto Exit; + } + + mask = table->masks + count - 1; + mask->num_bits = 0; + mask->end_point = 0; + table->num_masks = count; + + Exit: + *amask = mask; + return error; + } + + + /* return last hint mask in a table, create one if the table is empty */ + static FT_Error + ps_mask_table_last( PS_Mask_Table table, + FT_Memory memory, + PS_Mask *amask ) + { + FT_Error error = PSH_Err_Ok; + FT_UInt count; + PS_Mask mask; + + + count = table->num_masks; + if ( count == 0 ) + { + error = ps_mask_table_alloc( table, memory, &mask ); + if ( error ) + goto Exit; + } + else + mask = table->masks + count - 1; + + Exit: + *amask = mask; + return error; + } + + + /* set a new mask to a given bit range */ + static FT_Error + ps_mask_table_set_bits( PS_Mask_Table table, + const FT_Byte* source, + FT_UInt bit_pos, + FT_UInt bit_count, + FT_Memory memory ) + { + FT_Error error = PSH_Err_Ok; + PS_Mask mask; + + + error = ps_mask_table_last( table, memory, &mask ); + if ( error ) + goto Exit; + + error = ps_mask_ensure( mask, bit_count, memory ); + if ( error ) + goto Exit; + + mask->num_bits = bit_count; + + /* now, copy bits */ + { + FT_Byte* read = (FT_Byte*)source + ( bit_pos >> 3 ); + FT_Int rmask = 0x80 >> ( bit_pos & 7 ); + FT_Byte* write = mask->bytes; + FT_Int wmask = 0x80; + FT_Int val; + + + for ( ; bit_count > 0; bit_count-- ) + { + val = write[0] & ~wmask; + + if ( read[0] & rmask ) + val |= wmask; + + write[0] = (FT_Byte)val; + + rmask >>= 1; + if ( rmask == 0 ) + { + read++; + rmask = 0x80; + } + + wmask >>= 1; + if ( wmask == 0 ) + { + write++; + wmask = 0x80; + } + } + } + + Exit: + return error; + } + + + /* test whether two masks in a table intersect */ + static FT_Int + ps_mask_table_test_intersect( PS_Mask_Table table, + FT_Int index1, + FT_Int index2 ) + { + PS_Mask mask1 = table->masks + index1; + PS_Mask mask2 = table->masks + index2; + FT_Byte* p1 = mask1->bytes; + FT_Byte* p2 = mask2->bytes; + FT_UInt count1 = mask1->num_bits; + FT_UInt count2 = mask2->num_bits; + FT_UInt count; + + + count = ( count1 <= count2 ) ? count1 : count2; + for ( ; count >= 8; count -= 8 ) + { + if ( p1[0] & p2[0] ) + return 1; + + p1++; + p2++; + } + + if ( count == 0 ) + return 0; + + return ( p1[0] & p2[0] ) & ~( 0xFF >> count ); + } + + + /* merge two masks, used by ps_mask_table_merge_all */ + static FT_Error + ps_mask_table_merge( PS_Mask_Table table, + FT_Int index1, + FT_Int index2, + FT_Memory memory ) + { + FT_UInt temp; + FT_Error error = PSH_Err_Ok; + + + /* swap index1 and index2 so that index1 < index2 */ + if ( index1 > index2 ) + { + temp = index1; + index1 = index2; + index2 = temp; + } + + if ( index1 < index2 && index1 >= 0 && index2 < (FT_Int)table->num_masks ) + { + /* we need to merge the bitsets of index1 and index2 with a */ + /* simple union */ + PS_Mask mask1 = table->masks + index1; + PS_Mask mask2 = table->masks + index2; + FT_UInt count1 = mask1->num_bits; + FT_UInt count2 = mask2->num_bits; + FT_Int delta; + + + if ( count2 > 0 ) + { + FT_UInt pos; + FT_Byte* read; + FT_Byte* write; + + + /* if "count2" is greater than "count1", we need to grow the */ + /* first bitset, and clear the highest bits */ + if ( count2 > count1 ) + { + error = ps_mask_ensure( mask1, count2, memory ); + if ( error ) + goto Exit; + + for ( pos = count1; pos < count2; pos++ ) + ps_mask_clear_bit( mask1, pos ); + } + + /* merge (unite) the bitsets */ + read = mask2->bytes; + write = mask1->bytes; + pos = (FT_UInt)( ( count2 + 7 ) >> 3 ); + + for ( ; pos > 0; pos-- ) + { + write[0] = (FT_Byte)( write[0] | read[0] ); + write++; + read++; + } + } + + /* Now, remove "mask2" from the list. We need to keep the masks */ + /* sorted in order of importance, so move table elements. */ + mask2->num_bits = 0; + mask2->end_point = 0; + + delta = table->num_masks - 1 - index2; /* number of masks to move */ + if ( delta > 0 ) + { + /* move to end of table for reuse */ + PS_MaskRec dummy = *mask2; + + + ft_memmove( mask2, mask2 + 1, delta * sizeof ( PS_MaskRec ) ); + + mask2[delta] = dummy; + } + + table->num_masks--; + } + else + FT_TRACE0(( "ps_mask_table_merge: ignoring invalid indices (%d,%d)\n", + index1, index2 )); + + Exit: + return error; + } + + + /* Try to merge all masks in a given table. This is used to merge */ + /* all counter masks into independent counter "paths". */ + /* */ + static FT_Error + ps_mask_table_merge_all( PS_Mask_Table table, + FT_Memory memory ) + { + FT_Int index1, index2; + FT_Error error = PSH_Err_Ok; + + + for ( index1 = table->num_masks - 1; index1 > 0; index1-- ) + { + for ( index2 = index1 - 1; index2 >= 0; index2-- ) + { + if ( ps_mask_table_test_intersect( table, index1, index2 ) ) + { + error = ps_mask_table_merge( table, index2, index1, memory ); + if ( error ) + goto Exit; + + break; + } + } + } + + Exit: + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PS_DIMENSION MANAGEMENT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* finalize a given dimension */ + static void + ps_dimension_done( PS_Dimension dimension, + FT_Memory memory ) + { + ps_mask_table_done( &dimension->counters, memory ); + ps_mask_table_done( &dimension->masks, memory ); + ps_hint_table_done( &dimension->hints, memory ); + } + + + /* initialize a given dimension */ + static void + ps_dimension_init( PS_Dimension dimension ) + { + dimension->hints.num_hints = 0; + dimension->masks.num_masks = 0; + dimension->counters.num_masks = 0; + } + + +#if 0 + + /* set a bit at a given index in the current hint mask */ + static FT_Error + ps_dimension_set_mask_bit( PS_Dimension dim, + FT_UInt idx, + FT_Memory memory ) + { + PS_Mask mask; + FT_Error error = PSH_Err_Ok; + + + /* get last hint mask */ + error = ps_mask_table_last( &dim->masks, memory, &mask ); + if ( error ) + goto Exit; + + error = ps_mask_set_bit( mask, idx, memory ); + + Exit: + return error; + } + +#endif + + /* set the end point in a mask, called from "End" & "Reset" methods */ + static void + ps_dimension_end_mask( PS_Dimension dim, + FT_UInt end_point ) + { + FT_UInt count = dim->masks.num_masks; + PS_Mask mask; + + + if ( count > 0 ) + { + mask = dim->masks.masks + count - 1; + mask->end_point = end_point; + } + } + + + /* set the end point in the current mask, then create a new empty one */ + /* (called by "Reset" method) */ + static FT_Error + ps_dimension_reset_mask( PS_Dimension dim, + FT_UInt end_point, + FT_Memory memory ) + { + PS_Mask mask; + + + /* end current mask */ + ps_dimension_end_mask( dim, end_point ); + + /* allocate new one */ + return ps_mask_table_alloc( &dim->masks, memory, &mask ); + } + + + /* set a new mask, called from the "T2Stem" method */ + static FT_Error + ps_dimension_set_mask_bits( PS_Dimension dim, + const FT_Byte* source, + FT_UInt source_pos, + FT_UInt source_bits, + FT_UInt end_point, + FT_Memory memory ) + { + FT_Error error = PSH_Err_Ok; + + + /* reset current mask, if any */ + error = ps_dimension_reset_mask( dim, end_point, memory ); + if ( error ) + goto Exit; + + /* set bits in new mask */ + error = ps_mask_table_set_bits( &dim->masks, source, + source_pos, source_bits, memory ); + + Exit: + return error; + } + + + /* add a new single stem (called from "T1Stem" method) */ + static FT_Error + ps_dimension_add_t1stem( PS_Dimension dim, + FT_Int pos, + FT_Int len, + FT_Memory memory, + FT_Int *aindex ) + { + FT_Error error = PSH_Err_Ok; + FT_UInt flags = 0; + + + /* detect ghost stem */ + if ( len < 0 ) + { + flags |= PS_HINT_FLAG_GHOST; + if ( len == -21 ) + { + flags |= PS_HINT_FLAG_BOTTOM; + pos += len; + } + len = 0; + } + + if ( aindex ) + *aindex = -1; + + /* now, lookup stem in the current hints table */ + { + PS_Mask mask; + FT_UInt idx; + FT_UInt max = dim->hints.num_hints; + PS_Hint hint = dim->hints.hints; + + + for ( idx = 0; idx < max; idx++, hint++ ) + { + if ( hint->pos == pos && hint->len == len ) + break; + } + + /* we need to create a new hint in the table */ + if ( idx >= max ) + { + error = ps_hint_table_alloc( &dim->hints, memory, &hint ); + if ( error ) + goto Exit; + + hint->pos = pos; + hint->len = len; + hint->flags = flags; + } + + /* now, store the hint in the current mask */ + error = ps_mask_table_last( &dim->masks, memory, &mask ); + if ( error ) + goto Exit; + + error = ps_mask_set_bit( mask, idx, memory ); + if ( error ) + goto Exit; + + if ( aindex ) + *aindex = (FT_Int)idx; + } + + Exit: + return error; + } + + + /* add a "hstem3/vstem3" counter to our dimension table */ + static FT_Error + ps_dimension_add_counter( PS_Dimension dim, + FT_Int hint1, + FT_Int hint2, + FT_Int hint3, + FT_Memory memory ) + { + FT_Error error = PSH_Err_Ok; + FT_UInt count = dim->counters.num_masks; + PS_Mask counter = dim->counters.masks; + + + /* try to find an existing counter mask that already uses */ + /* one of these stems here */ + for ( ; count > 0; count--, counter++ ) + { + if ( ps_mask_test_bit( counter, hint1 ) || + ps_mask_test_bit( counter, hint2 ) || + ps_mask_test_bit( counter, hint3 ) ) + break; + } + + /* create a new counter when needed */ + if ( count == 0 ) + { + error = ps_mask_table_alloc( &dim->counters, memory, &counter ); + if ( error ) + goto Exit; + } + + /* now, set the bits for our hints in the counter mask */ + error = ps_mask_set_bit( counter, hint1, memory ); + if ( error ) + goto Exit; + + error = ps_mask_set_bit( counter, hint2, memory ); + if ( error ) + goto Exit; + + error = ps_mask_set_bit( counter, hint3, memory ); + if ( error ) + goto Exit; + + Exit: + return error; + } + + + /* end of recording session for a given dimension */ + static FT_Error + ps_dimension_end( PS_Dimension dim, + FT_UInt end_point, + FT_Memory memory ) + { + /* end hint mask table */ + ps_dimension_end_mask( dim, end_point ); + + /* merge all counter masks into independent "paths" */ + return ps_mask_table_merge_all( &dim->counters, memory ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** PS_RECORDER MANAGEMENT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* destroy hints */ + FT_LOCAL( void ) + ps_hints_done( PS_Hints hints ) + { + FT_Memory memory = hints->memory; + + + ps_dimension_done( &hints->dimension[0], memory ); + ps_dimension_done( &hints->dimension[1], memory ); + + hints->error = PSH_Err_Ok; + hints->memory = 0; + } + + + FT_LOCAL( FT_Error ) + ps_hints_init( PS_Hints hints, + FT_Memory memory ) + { + FT_MEM_ZERO( hints, sizeof ( *hints ) ); + hints->memory = memory; + return PSH_Err_Ok; + } + + + /* initialize a hints for a new session */ + static void + ps_hints_open( PS_Hints hints, + PS_Hint_Type hint_type ) + { + switch ( hint_type ) + { + case PS_HINT_TYPE_1: + case PS_HINT_TYPE_2: + hints->error = PSH_Err_Ok; + hints->hint_type = hint_type; + + ps_dimension_init( &hints->dimension[0] ); + ps_dimension_init( &hints->dimension[1] ); + break; + + default: + hints->error = PSH_Err_Invalid_Argument; + hints->hint_type = hint_type; + + FT_TRACE0(( "ps_hints_open: invalid charstring type\n" )); + break; + } + } + + + /* add one or more stems to the current hints table */ + static void + ps_hints_stem( PS_Hints hints, + FT_Int dimension, + FT_UInt count, + FT_Long* stems ) + { + if ( !hints->error ) + { + /* limit "dimension" to 0..1 */ + if ( dimension < 0 || dimension > 1 ) + { + FT_TRACE0(( "ps_hints_stem: invalid dimension (%d) used\n", + dimension )); + dimension = ( dimension != 0 ); + } + + /* record the stems in the current hints/masks table */ + switch ( hints->hint_type ) + { + case PS_HINT_TYPE_1: /* Type 1 "hstem" or "vstem" operator */ + case PS_HINT_TYPE_2: /* Type 2 "hstem" or "vstem" operator */ + { + PS_Dimension dim = &hints->dimension[dimension]; + + + for ( ; count > 0; count--, stems += 2 ) + { + FT_Error error; + FT_Memory memory = hints->memory; + + + error = ps_dimension_add_t1stem( + dim, (FT_Int)stems[0], (FT_Int)stems[1], + memory, NULL ); + if ( error ) + { + FT_ERROR(( "ps_hints_stem: could not add stem" + " (%d,%d) to hints table\n", stems[0], stems[1] )); + + hints->error = error; + return; + } + } + break; + } + + default: + FT_TRACE0(( "ps_hints_stem: called with invalid hint type (%d)\n", + hints->hint_type )); + break; + } + } + } + + + /* add one Type1 counter stem to the current hints table */ + static void + ps_hints_t1stem3( PS_Hints hints, + FT_Int dimension, + FT_Fixed* stems ) + { + FT_Error error = PSH_Err_Ok; + + + if ( !hints->error ) + { + PS_Dimension dim; + FT_Memory memory = hints->memory; + FT_Int count; + FT_Int idx[3]; + + + /* limit "dimension" to 0..1 */ + if ( dimension < 0 || dimension > 1 ) + { + FT_TRACE0(( "ps_hints_t1stem3: invalid dimension (%d) used\n", + dimension )); + dimension = ( dimension != 0 ); + } + + dim = &hints->dimension[dimension]; + + /* there must be 6 elements in the 'stem' array */ + if ( hints->hint_type == PS_HINT_TYPE_1 ) + { + /* add the three stems to our hints/masks table */ + for ( count = 0; count < 3; count++, stems += 2 ) + { + error = ps_dimension_add_t1stem( dim, + (FT_Int)FIXED_TO_INT( stems[0] ), + (FT_Int)FIXED_TO_INT( stems[1] ), + memory, &idx[count] ); + if ( error ) + goto Fail; + } + + /* now, add the hints to the counters table */ + error = ps_dimension_add_counter( dim, idx[0], idx[1], idx[2], + memory ); + if ( error ) + goto Fail; + } + else + { + FT_ERROR(( "ps_hints_t1stem3: called with invalid hint type\n" )); + error = PSH_Err_Invalid_Argument; + goto Fail; + } + } + + return; + + Fail: + FT_ERROR(( "ps_hints_t1stem3: could not add counter stems to table\n" )); + hints->error = error; + } + + + /* reset hints (only with Type 1 hints) */ + static void + ps_hints_t1reset( PS_Hints hints, + FT_UInt end_point ) + { + FT_Error error = PSH_Err_Ok; + + + if ( !hints->error ) + { + FT_Memory memory = hints->memory; + + + if ( hints->hint_type == PS_HINT_TYPE_1 ) + { + error = ps_dimension_reset_mask( &hints->dimension[0], + end_point, memory ); + if ( error ) + goto Fail; + + error = ps_dimension_reset_mask( &hints->dimension[1], + end_point, memory ); + if ( error ) + goto Fail; + } + else + { + /* invalid hint type */ + error = PSH_Err_Invalid_Argument; + goto Fail; + } + } + return; + + Fail: + hints->error = error; + } + + + /* Type2 "hintmask" operator, add a new hintmask to each direction */ + static void + ps_hints_t2mask( PS_Hints hints, + FT_UInt end_point, + FT_UInt bit_count, + const FT_Byte* bytes ) + { + FT_Error error; + + + if ( !hints->error ) + { + PS_Dimension dim = hints->dimension; + FT_Memory memory = hints->memory; + FT_UInt count1 = dim[0].hints.num_hints; + FT_UInt count2 = dim[1].hints.num_hints; + + + /* check bit count; must be equal to current total hint count */ + if ( bit_count != count1 + count2 ) + { + FT_TRACE0(( "ps_hints_t2mask:" + " called with invalid bitcount %d (instead of %d)\n", + bit_count, count1 + count2 )); + + /* simply ignore the operator */ + return; + } + + /* set-up new horizontal and vertical hint mask now */ + error = ps_dimension_set_mask_bits( &dim[0], bytes, count2, count1, + end_point, memory ); + if ( error ) + goto Fail; + + error = ps_dimension_set_mask_bits( &dim[1], bytes, 0, count2, + end_point, memory ); + if ( error ) + goto Fail; + } + return; + + Fail: + hints->error = error; + } + + + static void + ps_hints_t2counter( PS_Hints hints, + FT_UInt bit_count, + const FT_Byte* bytes ) + { + FT_Error error; + + + if ( !hints->error ) + { + PS_Dimension dim = hints->dimension; + FT_Memory memory = hints->memory; + FT_UInt count1 = dim[0].hints.num_hints; + FT_UInt count2 = dim[1].hints.num_hints; + + + /* check bit count, must be equal to current total hint count */ + if ( bit_count != count1 + count2 ) + { + FT_TRACE0(( "ps_hints_t2counter:" + " called with invalid bitcount %d (instead of %d)\n", + bit_count, count1 + count2 )); + + /* simply ignore the operator */ + return; + } + + /* set-up new horizontal and vertical hint mask now */ + error = ps_dimension_set_mask_bits( &dim[0], bytes, 0, count1, + 0, memory ); + if ( error ) + goto Fail; + + error = ps_dimension_set_mask_bits( &dim[1], bytes, count1, count2, + 0, memory ); + if ( error ) + goto Fail; + } + return; + + Fail: + hints->error = error; + } + + + /* end recording session */ + static FT_Error + ps_hints_close( PS_Hints hints, + FT_UInt end_point ) + { + FT_Error error; + + + error = hints->error; + if ( !error ) + { + FT_Memory memory = hints->memory; + PS_Dimension dim = hints->dimension; + + + error = ps_dimension_end( &dim[0], end_point, memory ); + if ( !error ) + { + error = ps_dimension_end( &dim[1], end_point, memory ); + } + } + +#ifdef DEBUG_HINTER + if ( !error ) + ps_debug_hints = hints; +#endif + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE 1 HINTS RECORDING INTERFACE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + t1_hints_open( T1_Hints hints ) + { + ps_hints_open( (PS_Hints)hints, PS_HINT_TYPE_1 ); + } + + static void + t1_hints_stem( T1_Hints hints, + FT_Int dimension, + FT_Fixed* coords ) + { + FT_Pos stems[2]; + + + stems[0] = FIXED_TO_INT( coords[0] ); + stems[1] = FIXED_TO_INT( coords[1] ); + + ps_hints_stem( (PS_Hints)hints, dimension, 1, stems ); + } + + + FT_LOCAL_DEF( void ) + t1_hints_funcs_init( T1_Hints_FuncsRec* funcs ) + { + FT_MEM_ZERO( (char*)funcs, sizeof ( *funcs ) ); + + funcs->open = (T1_Hints_OpenFunc) t1_hints_open; + funcs->close = (T1_Hints_CloseFunc) ps_hints_close; + funcs->stem = (T1_Hints_SetStemFunc) t1_hints_stem; + funcs->stem3 = (T1_Hints_SetStem3Func)ps_hints_t1stem3; + funcs->reset = (T1_Hints_ResetFunc) ps_hints_t1reset; + funcs->apply = (T1_Hints_ApplyFunc) ps_hints_apply; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE 2 HINTS RECORDING INTERFACE *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static void + t2_hints_open( T2_Hints hints ) + { + ps_hints_open( (PS_Hints)hints, PS_HINT_TYPE_2 ); + } + + + static void + t2_hints_stems( T2_Hints hints, + FT_Int dimension, + FT_Int count, + FT_Fixed* coords ) + { + FT_Pos stems[32], y, n; + FT_Int total = count; + + + y = 0; + while ( total > 0 ) + { + /* determine number of stems to write */ + count = total; + if ( count > 16 ) + count = 16; + + /* compute integer stem positions in font units */ + for ( n = 0; n < count * 2; n++ ) + { + y += coords[n]; + stems[n] = FIXED_TO_INT( y ); + } + + /* compute lengths */ + for ( n = 0; n < count * 2; n += 2 ) + stems[n + 1] = stems[n + 1] - stems[n]; + + /* add them to the current dimension */ + ps_hints_stem( (PS_Hints)hints, dimension, count, stems ); + + total -= count; + } + } + + + FT_LOCAL_DEF( void ) + t2_hints_funcs_init( T2_Hints_FuncsRec* funcs ) + { + FT_MEM_ZERO( funcs, sizeof ( *funcs ) ); + + funcs->open = (T2_Hints_OpenFunc) t2_hints_open; + funcs->close = (T2_Hints_CloseFunc) ps_hints_close; + funcs->stems = (T2_Hints_StemsFunc) t2_hints_stems; + funcs->hintmask= (T2_Hints_MaskFunc) ps_hints_t2mask; + funcs->counter = (T2_Hints_CounterFunc)ps_hints_t2counter; + funcs->apply = (T2_Hints_ApplyFunc) ps_hints_apply; + } + + +/* END */ diff --git a/src/pshinter/pshrec.h b/src/pshinter/pshrec.h new file mode 100644 index 0000000..dcb3197 --- /dev/null +++ b/src/pshinter/pshrec.h @@ -0,0 +1,176 @@ +/***************************************************************************/ +/* */ +/* pshrec.h */ +/* */ +/* Postscript (Type1/Type2) hints recorder (specification). */ +/* */ +/* Copyright 2001, 2002, 2003, 2006, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /**************************************************************************/ + /* */ + /* The functions defined here are called from the Type 1, CID and CFF */ + /* font drivers to record the hints of a given character/glyph. */ + /* */ + /* The hints are recorded in a unified format, and are later processed */ + /* by the `optimizer' and `fitter' to adjust the outlines to the pixel */ + /* grid. */ + /* */ + /**************************************************************************/ + + +#ifndef __PSHREC_H__ +#define __PSHREC_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_POSTSCRIPT_HINTS_H +#include "pshglob.h" + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GLYPH HINTS RECORDER INTERNALS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /* handle to hint record */ + typedef struct PS_HintRec_* PS_Hint; + + /* hint types */ + typedef enum PS_Hint_Type_ + { + PS_HINT_TYPE_1 = 1, + PS_HINT_TYPE_2 = 2 + + } PS_Hint_Type; + + + /* hint flags */ + typedef enum PS_Hint_Flags_ + { + PS_HINT_FLAG_GHOST = 1, + PS_HINT_FLAG_BOTTOM = 2 + + } PS_Hint_Flags; + + + /* hint descriptor */ + typedef struct PS_HintRec_ + { + FT_Int pos; + FT_Int len; + FT_UInt flags; + + } PS_HintRec; + + +#define ps_hint_is_active( x ) ( (x)->flags & PS_HINT_FLAG_ACTIVE ) +#define ps_hint_is_ghost( x ) ( (x)->flags & PS_HINT_FLAG_GHOST ) +#define ps_hint_is_bottom( x ) ( (x)->flags & PS_HINT_FLAG_BOTTOM ) + + + /* hints table descriptor */ + typedef struct PS_Hint_TableRec_ + { + FT_UInt num_hints; + FT_UInt max_hints; + PS_Hint hints; + + } PS_Hint_TableRec, *PS_Hint_Table; + + + /* hint and counter mask descriptor */ + typedef struct PS_MaskRec_ + { + FT_UInt num_bits; + FT_UInt max_bits; + FT_Byte* bytes; + FT_UInt end_point; + + } PS_MaskRec, *PS_Mask; + + + /* masks and counters table descriptor */ + typedef struct PS_Mask_TableRec_ + { + FT_UInt num_masks; + FT_UInt max_masks; + PS_Mask masks; + + } PS_Mask_TableRec, *PS_Mask_Table; + + + /* dimension-specific hints descriptor */ + typedef struct PS_DimensionRec_ + { + PS_Hint_TableRec hints; + PS_Mask_TableRec masks; + PS_Mask_TableRec counters; + + } PS_DimensionRec, *PS_Dimension; + + + /* glyph hints descriptor */ + /* dimension 0 => X coordinates + vertical hints/stems */ + /* dimension 1 => Y coordinates + horizontal hints/stems */ + typedef struct PS_HintsRec_ + { + FT_Memory memory; + FT_Error error; + FT_UInt32 magic; + PS_Hint_Type hint_type; + PS_DimensionRec dimension[2]; + + } PS_HintsRec, *PS_Hints; + + /* */ + + /* initialize hints recorder */ + FT_LOCAL( FT_Error ) + ps_hints_init( PS_Hints hints, + FT_Memory memory ); + + /* finalize hints recorder */ + FT_LOCAL( void ) + ps_hints_done( PS_Hints hints ); + + /* initialize Type1 hints recorder interface */ + FT_LOCAL( void ) + t1_hints_funcs_init( T1_Hints_FuncsRec* funcs ); + + /* initialize Type2 hints recorder interface */ + FT_LOCAL( void ) + t2_hints_funcs_init( T2_Hints_FuncsRec* funcs ); + + +#ifdef DEBUG_HINTER + extern PS_Hints ps_debug_hints; + extern int ps_debug_no_horz_hints; + extern int ps_debug_no_vert_hints; +#endif + + /* */ + + +FT_END_HEADER + + +#endif /* __PS_HINTER_RECORD_H__ */ + + +/* END */ diff --git a/src/pshinter/rules.mk b/src/pshinter/rules.mk new file mode 100644 index 0000000..888ece1 --- /dev/null +++ b/src/pshinter/rules.mk @@ -0,0 +1,73 @@ +# +# FreeType 2 PSHinter driver configuration rules +# + + +# Copyright 2001, 2003, 2011 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# PSHINTER driver directory +# +PSHINTER_DIR := $(SRC_DIR)/pshinter + + +# compilation flags for the driver +# +PSHINTER_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(PSHINTER_DIR)) + + +# PSHINTER driver sources (i.e., C files) +# +PSHINTER_DRV_SRC := $(PSHINTER_DIR)/pshalgo.c \ + $(PSHINTER_DIR)/pshglob.c \ + $(PSHINTER_DIR)/pshmod.c \ + $(PSHINTER_DIR)/pshpic.c \ + $(PSHINTER_DIR)/pshrec.c + + +# PSHINTER driver headers +# +PSHINTER_DRV_H := $(PSHINTER_DRV_SRC:%c=%h) \ + $(PSHINTER_DIR)/pshnterr.h + + +# PSHINTER driver object(s) +# +# PSHINTER_DRV_OBJ_M is used during `multi' builds. +# PSHINTER_DRV_OBJ_S is used during `single' builds. +# +PSHINTER_DRV_OBJ_M := $(PSHINTER_DRV_SRC:$(PSHINTER_DIR)/%.c=$(OBJ_DIR)/%.$O) +PSHINTER_DRV_OBJ_S := $(OBJ_DIR)/pshinter.$O + +# PSHINTER driver source file for single build +# +PSHINTER_DRV_SRC_S := $(PSHINTER_DIR)/pshinter.c + + +# PSHINTER driver - single object +# +$(PSHINTER_DRV_OBJ_S): $(PSHINTER_DRV_SRC_S) $(PSHINTER_DRV_SRC) \ + $(FREETYPE_H) $(PSHINTER_DRV_H) + $(PSHINTER_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(PSHINTER_DRV_SRC_S)) + + +# PSHINTER driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(PSHINTER_DIR)/%.c $(FREETYPE_H) $(PSHINTER_DRV_H) + $(PSHINTER_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(PSHINTER_DRV_OBJ_S) +DRV_OBJS_M += $(PSHINTER_DRV_OBJ_M) + + +# EOF diff --git a/src/psnames/Jamfile b/src/psnames/Jamfile new file mode 100644 index 0000000..06c0dda --- /dev/null +++ b/src/psnames/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/psnames Jamfile +# +# Copyright 2001 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) psnames ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = psmodule pspic ; + } + else + { + _sources = psnames ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/psnames Jamfile diff --git a/src/psnames/module.mk b/src/psnames/module.mk new file mode 100644 index 0000000..a6e9082 --- /dev/null +++ b/src/psnames/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 PSnames module definition +# + + +# Copyright 1996-2000, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += PSNAMES_MODULE + +define PSNAMES_MODULE +$(OPEN_DRIVER) FT_Module_Class, psnames_module_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)psnames $(ECHO_DRIVER_DESC)Postscript & Unicode Glyph name handling$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/psnames/psmodule.c b/src/psnames/psmodule.c new file mode 100644 index 0000000..3619174 --- /dev/null +++ b/src/psnames/psmodule.c @@ -0,0 +1,609 @@ +/***************************************************************************/ +/* */ +/* psmodule.c */ +/* */ +/* PSNames module implementation (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2005, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H + +#include "psmodule.h" +#include "pstables.h" + +#include "psnamerr.h" +#include "pspic.h" + + +#ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES + + +#ifdef FT_CONFIG_OPTION_ADOBE_GLYPH_LIST + + +#define VARIANT_BIT 0x80000000UL +#define BASE_GLYPH( code ) ( (FT_UInt32)( (code) & ~VARIANT_BIT ) ) + + + /* Return the Unicode value corresponding to a given glyph. Note that */ + /* we do deal with glyph variants by detecting a non-initial dot in */ + /* the name, as in `A.swash' or `e.final'; in this case, the */ + /* VARIANT_BIT is set in the return value. */ + /* */ + static FT_UInt32 + ps_unicode_value( const char* glyph_name ) + { + /* If the name begins with `uni', then the glyph name may be a */ + /* hard-coded unicode character code. */ + if ( glyph_name[0] == 'u' && + glyph_name[1] == 'n' && + glyph_name[2] == 'i' ) + { + /* determine whether the next four characters following are */ + /* hexadecimal. */ + + /* XXX: Add code to deal with ligatures, i.e. glyph names like */ + /* `uniXXXXYYYYZZZZ'... */ + + FT_Int count; + FT_UInt32 value = 0; + const char* p = glyph_name + 3; + + + for ( count = 4; count > 0; count--, p++ ) + { + char c = *p; + unsigned int d; + + + d = (unsigned char)c - '0'; + if ( d >= 10 ) + { + d = (unsigned char)c - 'A'; + if ( d >= 6 ) + d = 16; + else + d += 10; + } + + /* Exit if a non-uppercase hexadecimal character was found */ + /* -- this also catches character codes below `0' since such */ + /* negative numbers cast to `unsigned int' are far too big. */ + if ( d >= 16 ) + break; + + value = ( value << 4 ) + d; + } + + /* there must be exactly four hex digits */ + if ( count == 0 ) + { + if ( *p == '\0' ) + return value; + if ( *p == '.' ) + return (FT_UInt32)( value | VARIANT_BIT ); + } + } + + /* If the name begins with `u', followed by four to six uppercase */ + /* hexadecimal digits, it is a hard-coded unicode character code. */ + if ( glyph_name[0] == 'u' ) + { + FT_Int count; + FT_UInt32 value = 0; + const char* p = glyph_name + 1; + + + for ( count = 6; count > 0; count--, p++ ) + { + char c = *p; + unsigned int d; + + + d = (unsigned char)c - '0'; + if ( d >= 10 ) + { + d = (unsigned char)c - 'A'; + if ( d >= 6 ) + d = 16; + else + d += 10; + } + + if ( d >= 16 ) + break; + + value = ( value << 4 ) + d; + } + + if ( count <= 2 ) + { + if ( *p == '\0' ) + return value; + if ( *p == '.' ) + return (FT_UInt32)( value | VARIANT_BIT ); + } + } + + /* Look for a non-initial dot in the glyph name in order to */ + /* find variants like `A.swash', `e.final', etc. */ + { + const char* p = glyph_name; + const char* dot = NULL; + + + for ( ; *p; p++ ) + { + if ( *p == '.' && p > glyph_name ) + { + dot = p; + break; + } + } + + /* now look up the glyph in the Adobe Glyph List */ + if ( !dot ) + return (FT_UInt32)ft_get_adobe_glyph_index( glyph_name, p ); + else + return (FT_UInt32)( ft_get_adobe_glyph_index( glyph_name, dot ) | + VARIANT_BIT ); + } + } + + + /* ft_qsort callback to sort the unicode map */ + FT_CALLBACK_DEF( int ) + compare_uni_maps( const void* a, + const void* b ) + { + PS_UniMap* map1 = (PS_UniMap*)a; + PS_UniMap* map2 = (PS_UniMap*)b; + FT_UInt32 unicode1 = BASE_GLYPH( map1->unicode ); + FT_UInt32 unicode2 = BASE_GLYPH( map2->unicode ); + + + /* sort base glyphs before glyph variants */ + if ( unicode1 == unicode2 ) + { + if ( map1->unicode > map2->unicode ) + return 1; + else if ( map1->unicode < map2->unicode ) + return -1; + else + return 0; + } + else + { + if ( unicode1 > unicode2 ) + return 1; + else if ( unicode1 < unicode2 ) + return -1; + else + return 0; + } + } + + + /* support for extra glyphs not handled (well) in AGL; */ + /* we add extra mappings for them if necessary */ + +#define EXTRA_GLYPH_LIST_SIZE 10 + + static const FT_UInt32 ft_extra_glyph_unicodes[EXTRA_GLYPH_LIST_SIZE] = + { + /* WGL 4 */ + 0x0394, + 0x03A9, + 0x2215, + 0x00AD, + 0x02C9, + 0x03BC, + 0x2219, + 0x00A0, + /* Romanian */ + 0x021A, + 0x021B + }; + + static const char ft_extra_glyph_names[] = + { + 'D','e','l','t','a',0, + 'O','m','e','g','a',0, + 'f','r','a','c','t','i','o','n',0, + 'h','y','p','h','e','n',0, + 'm','a','c','r','o','n',0, + 'm','u',0, + 'p','e','r','i','o','d','c','e','n','t','e','r','e','d',0, + 's','p','a','c','e',0, + 'T','c','o','m','m','a','a','c','c','e','n','t',0, + 't','c','o','m','m','a','a','c','c','e','n','t',0 + }; + + static const FT_Int + ft_extra_glyph_name_offsets[EXTRA_GLYPH_LIST_SIZE] = + { + 0, + 6, + 12, + 21, + 28, + 35, + 38, + 53, + 59, + 72 + }; + + + static void + ps_check_extra_glyph_name( const char* gname, + FT_UInt glyph, + FT_UInt* extra_glyphs, + FT_UInt *states ) + { + FT_UInt n; + + + for ( n = 0; n < EXTRA_GLYPH_LIST_SIZE; n++ ) + { + if ( ft_strcmp( ft_extra_glyph_names + + ft_extra_glyph_name_offsets[n], gname ) == 0 ) + { + if ( states[n] == 0 ) + { + /* mark this extra glyph as a candidate for the cmap */ + states[n] = 1; + extra_glyphs[n] = glyph; + } + + return; + } + } + } + + + static void + ps_check_extra_glyph_unicode( FT_UInt32 uni_char, + FT_UInt *states ) + { + FT_UInt n; + + + for ( n = 0; n < EXTRA_GLYPH_LIST_SIZE; n++ ) + { + if ( uni_char == ft_extra_glyph_unicodes[n] ) + { + /* disable this extra glyph from being added to the cmap */ + states[n] = 2; + + return; + } + } + } + + + /* Build a table that maps Unicode values to glyph indices. */ + static FT_Error + ps_unicodes_init( FT_Memory memory, + PS_Unicodes table, + FT_UInt num_glyphs, + PS_GetGlyphNameFunc get_glyph_name, + PS_FreeGlyphNameFunc free_glyph_name, + FT_Pointer glyph_data ) + { + FT_Error error; + + FT_UInt extra_glyph_list_states[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; + FT_UInt extra_glyphs[EXTRA_GLYPH_LIST_SIZE]; + + + /* we first allocate the table */ + table->num_maps = 0; + table->maps = 0; + + if ( !FT_NEW_ARRAY( table->maps, num_glyphs + EXTRA_GLYPH_LIST_SIZE ) ) + { + FT_UInt n; + FT_UInt count; + PS_UniMap* map; + FT_UInt32 uni_char; + + + map = table->maps; + + for ( n = 0; n < num_glyphs; n++ ) + { + const char* gname = get_glyph_name( glyph_data, n ); + + + if ( gname ) + { + ps_check_extra_glyph_name( gname, n, + extra_glyphs, extra_glyph_list_states ); + uni_char = ps_unicode_value( gname ); + + if ( BASE_GLYPH( uni_char ) != 0 ) + { + ps_check_extra_glyph_unicode( uni_char, + extra_glyph_list_states ); + map->unicode = uni_char; + map->glyph_index = n; + map++; + } + + if ( free_glyph_name ) + free_glyph_name( glyph_data, gname ); + } + } + + for ( n = 0; n < EXTRA_GLYPH_LIST_SIZE; n++ ) + { + if ( extra_glyph_list_states[n] == 1 ) + { + /* This glyph name has an additional representation. */ + /* Add it to the cmap. */ + + map->unicode = ft_extra_glyph_unicodes[n]; + map->glyph_index = extra_glyphs[n]; + map++; + } + } + + /* now compress the table a bit */ + count = (FT_UInt)( map - table->maps ); + + if ( count == 0 ) + { + /* No unicode chars here! */ + FT_FREE( table->maps ); + if ( !error ) + error = PSnames_Err_No_Unicode_Glyph_Name; + } + else + { + /* Reallocate if the number of used entries is much smaller. */ + if ( count < num_glyphs / 2 ) + { + (void)FT_RENEW_ARRAY( table->maps, num_glyphs, count ); + error = PSnames_Err_Ok; + } + + /* Sort the table in increasing order of unicode values, */ + /* taking care of glyph variants. */ + ft_qsort( table->maps, count, sizeof ( PS_UniMap ), + compare_uni_maps ); + } + + table->num_maps = count; + } + + return error; + } + + + static FT_UInt + ps_unicodes_char_index( PS_Unicodes table, + FT_UInt32 unicode ) + { + PS_UniMap *min, *max, *mid, *result = NULL; + + + /* Perform a binary search on the table. */ + + min = table->maps; + max = min + table->num_maps - 1; + + while ( min <= max ) + { + FT_UInt32 base_glyph; + + + mid = min + ( ( max - min ) >> 1 ); + + if ( mid->unicode == unicode ) + { + result = mid; + break; + } + + base_glyph = BASE_GLYPH( mid->unicode ); + + if ( base_glyph == unicode ) + result = mid; /* remember match but continue search for base glyph */ + + if ( min == max ) + break; + + if ( base_glyph < unicode ) + min = mid + 1; + else + max = mid - 1; + } + + if ( result ) + return result->glyph_index; + else + return 0; + } + + + static FT_UInt32 + ps_unicodes_char_next( PS_Unicodes table, + FT_UInt32 *unicode ) + { + FT_UInt result = 0; + FT_UInt32 char_code = *unicode + 1; + + + { + FT_UInt min = 0; + FT_UInt max = table->num_maps; + FT_UInt mid; + PS_UniMap* map; + FT_UInt32 base_glyph; + + + while ( min < max ) + { + mid = min + ( ( max - min ) >> 1 ); + map = table->maps + mid; + + if ( map->unicode == char_code ) + { + result = map->glyph_index; + goto Exit; + } + + base_glyph = BASE_GLYPH( map->unicode ); + + if ( base_glyph == char_code ) + result = map->glyph_index; + + if ( base_glyph < char_code ) + min = mid + 1; + else + max = mid; + } + + if ( result ) + goto Exit; /* we have a variant glyph */ + + /* we didn't find it; check whether we have a map just above it */ + char_code = 0; + + if ( min < table->num_maps ) + { + map = table->maps + min; + result = map->glyph_index; + char_code = BASE_GLYPH( map->unicode ); + } + } + + Exit: + *unicode = char_code; + return result; + } + + +#endif /* FT_CONFIG_OPTION_ADOBE_GLYPH_LIST */ + + + static const char* + ps_get_macintosh_name( FT_UInt name_index ) + { + if ( name_index >= FT_NUM_MAC_NAMES ) + name_index = 0; + + return ft_standard_glyph_names + ft_mac_names[name_index]; + } + + + static const char* + ps_get_standard_strings( FT_UInt sid ) + { + if ( sid >= FT_NUM_SID_NAMES ) + return 0; + + return ft_standard_glyph_names + ft_sid_names[sid]; + } + + +#ifdef FT_CONFIG_OPTION_ADOBE_GLYPH_LIST + FT_DEFINE_SERVICE_PSCMAPSREC(pscmaps_interface, + (PS_Unicode_ValueFunc) ps_unicode_value, + (PS_Unicodes_InitFunc) ps_unicodes_init, + (PS_Unicodes_CharIndexFunc)ps_unicodes_char_index, + (PS_Unicodes_CharNextFunc) ps_unicodes_char_next, + + (PS_Macintosh_NameFunc) ps_get_macintosh_name, + (PS_Adobe_Std_StringsFunc) ps_get_standard_strings, + + t1_standard_encoding, + t1_expert_encoding + ) + +#else + + FT_DEFINE_SERVICE_PSCMAPSREC(pscmaps_interface, + 0, + 0, + 0, + 0, + + (PS_Macintosh_NameFunc) ps_get_macintosh_name, + (PS_Adobe_Std_StringsFunc) ps_get_standard_strings, + + t1_standard_encoding, + t1_expert_encoding + ) + +#endif /* FT_CONFIG_OPTION_ADOBE_GLYPH_LIST */ + + + FT_DEFINE_SERVICEDESCREC1(pscmaps_services, + FT_SERVICE_ID_POSTSCRIPT_CMAPS, &FT_PSCMAPS_INTERFACE_GET + ) + + + + + static FT_Pointer + psnames_get_service( FT_Module module, + const char* service_id ) + { + /* FT_PSCMAPS_SERVICES_GET derefers `library' in PIC mode */ +#ifdef FT_CONFIG_OPTION_PIC + FT_Library library; + + + if ( !module ) + return NULL; + library = module->library; + if ( !library ) + return NULL; +#else + FT_UNUSED( module ); +#endif + + return ft_service_list_lookup( FT_PSCMAPS_SERVICES_GET, service_id ); + } + +#endif /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES */ + + +#ifndef FT_CONFIG_OPTION_POSTSCRIPT_NAMES +#define PUT_PS_NAMES_SERVICE(a) 0 +#else +#define PUT_PS_NAMES_SERVICE(a) a +#endif + + FT_DEFINE_MODULE(psnames_module_class, + + 0, /* this is not a font driver, nor a renderer */ + sizeof ( FT_ModuleRec ), + + "psnames", /* driver name */ + 0x10000L, /* driver version */ + 0x20000L, /* driver requires FreeType 2 or above */ + + PUT_PS_NAMES_SERVICE((void*)&FT_PSCMAPS_INTERFACE_GET), /* module specific interface */ + (FT_Module_Constructor)0, + (FT_Module_Destructor) 0, + (FT_Module_Requester) PUT_PS_NAMES_SERVICE(psnames_get_service) + ) + + + +/* END */ diff --git a/src/psnames/psmodule.h b/src/psnames/psmodule.h new file mode 100644 index 0000000..28fa148 --- /dev/null +++ b/src/psnames/psmodule.h @@ -0,0 +1,38 @@ +/***************************************************************************/ +/* */ +/* psmodule.h */ +/* */ +/* High-level PSNames module interface (specification). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSMODULE_H__ +#define __PSMODULE_H__ + + +#include <ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + + + FT_DECLARE_MODULE( psnames_module_class ) + + +FT_END_HEADER + +#endif /* __PSMODULE_H__ */ + + +/* END */ diff --git a/src/psnames/psnamerr.h b/src/psnames/psnamerr.h new file mode 100644 index 0000000..acda7f9 --- /dev/null +++ b/src/psnames/psnamerr.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* psnamerr.h */ +/* */ +/* PS names module error codes (specification only). */ +/* */ +/* Copyright 2001, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the PS names module error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __PSNAMERR_H__ +#define __PSNAMERR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX PSnames_Err_ +#define FT_ERR_BASE FT_Mod_Err_PSnames + +#include FT_ERRORS_H + +#endif /* __PSNAMERR_H__ */ + + +/* END */ diff --git a/src/psnames/psnames.c b/src/psnames/psnames.c new file mode 100644 index 0000000..1ede225 --- /dev/null +++ b/src/psnames/psnames.c @@ -0,0 +1,26 @@ +/***************************************************************************/ +/* */ +/* psnames.c */ +/* */ +/* FreeType PSNames module component (body only). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> +#include "pspic.c" +#include "psmodule.c" + + +/* END */ diff --git a/src/psnames/pspic.c b/src/psnames/pspic.c new file mode 100644 index 0000000..467ab73 --- /dev/null +++ b/src/psnames/pspic.c @@ -0,0 +1,94 @@ +/***************************************************************************/ +/* */ +/* pspic.c */ +/* */ +/* The FreeType position independent code services for psnames module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "pspic.h" +#include "psnamerr.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from psmodule.c */ + FT_Error + FT_Create_Class_pscmaps_services( FT_Library library, + FT_ServiceDescRec** output_class ); + void + FT_Destroy_Class_pscmaps_services( FT_Library library, + FT_ServiceDescRec* clazz ); + + void + FT_Init_Class_pscmaps_interface( FT_Library library, + FT_Service_PsCMapsRec* clazz ); + + void + psnames_module_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + + + if ( pic_container->psnames ) + { + PSModulePIC* container = (PSModulePIC*)pic_container->psnames; + + + if(container->pscmaps_services) + FT_Destroy_Class_pscmaps_services( library, + container->pscmaps_services ); + container->pscmaps_services = NULL; + FT_FREE( container ); + pic_container->psnames = NULL; + } + } + + + FT_Error + psnames_module_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = PSnames_Err_Ok; + PSModulePIC* container; + FT_Memory memory = library->memory; + + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->psnames = container; + + /* initialize pointer table - this is how the module usually expects this data */ + error = FT_Create_Class_pscmaps_services( + library, &container->pscmaps_services ); + if ( error ) + goto Exit; + FT_Init_Class_pscmaps_interface( library, + &container->pscmaps_interface ); + +Exit: + if ( error ) + psnames_module_class_pic_free( library ); + return error; + } + + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/src/psnames/pspic.h b/src/psnames/pspic.h new file mode 100644 index 0000000..1169b89 --- /dev/null +++ b/src/psnames/pspic.h @@ -0,0 +1,61 @@ +/***************************************************************************/ +/* */ +/* pspic.h */ +/* */ +/* The FreeType position independent code services for psnames module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __PSPIC_H__ +#define __PSPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC +#define FT_PSCMAPS_SERVICES_GET pscmaps_services +#define FT_PSCMAPS_INTERFACE_GET pscmaps_interface + +#else /* FT_CONFIG_OPTION_PIC */ + +#include FT_SERVICE_POSTSCRIPT_CMAPS_H + + typedef struct PSModulePIC_ + { + FT_ServiceDescRec* pscmaps_services; + FT_Service_PsCMapsRec pscmaps_interface; + } PSModulePIC; + +#define GET_PIC(lib) ((PSModulePIC*)((lib)->pic_container.psnames)) +#define FT_PSCMAPS_SERVICES_GET (GET_PIC(library)->pscmaps_services) +#define FT_PSCMAPS_INTERFACE_GET (GET_PIC(library)->pscmaps_interface) + + /* see pspic.c for the implementation */ + void + psnames_module_class_pic_free( FT_Library library ); + + FT_Error + psnames_module_class_pic_init( FT_Library library ); + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __PSPIC_H__ */ + + +/* END */ diff --git a/src/psnames/pstables.h b/src/psnames/pstables.h new file mode 100644 index 0000000..0a6637f --- /dev/null +++ b/src/psnames/pstables.h @@ -0,0 +1,4170 @@ +/***************************************************************************/ +/* */ +/* pstables.h */ +/* */ +/* PostScript glyph names. */ +/* */ +/* Copyright 2005, 2008, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /* This file has been generated automatically -- do not edit! */ + + + static const char ft_standard_glyph_names[3696] = + { + '.','n','u','l','l', 0, + 'n','o','n','m','a','r','k','i','n','g','r','e','t','u','r','n', 0, + 'n','o','t','e','q','u','a','l', 0, + 'i','n','f','i','n','i','t','y', 0, + 'l','e','s','s','e','q','u','a','l', 0, + 'g','r','e','a','t','e','r','e','q','u','a','l', 0, + 'p','a','r','t','i','a','l','d','i','f','f', 0, + 's','u','m','m','a','t','i','o','n', 0, + 'p','r','o','d','u','c','t', 0, + 'p','i', 0, + 'i','n','t','e','g','r','a','l', 0, + 'O','m','e','g','a', 0, + 'r','a','d','i','c','a','l', 0, + 'a','p','p','r','o','x','e','q','u','a','l', 0, + 'D','e','l','t','a', 0, + 'n','o','n','b','r','e','a','k','i','n','g','s','p','a','c','e', 0, + 'l','o','z','e','n','g','e', 0, + 'a','p','p','l','e', 0, + 'f','r','a','n','c', 0, + 'G','b','r','e','v','e', 0, + 'g','b','r','e','v','e', 0, + 'I','d','o','t','a','c','c','e','n','t', 0, + 'S','c','e','d','i','l','l','a', 0, + 's','c','e','d','i','l','l','a', 0, + 'C','a','c','u','t','e', 0, + 'c','a','c','u','t','e', 0, + 'C','c','a','r','o','n', 0, + 'c','c','a','r','o','n', 0, + 'd','c','r','o','a','t', 0, + '.','n','o','t','d','e','f', 0, + 's','p','a','c','e', 0, + 'e','x','c','l','a','m', 0, + 'q','u','o','t','e','d','b','l', 0, + 'n','u','m','b','e','r','s','i','g','n', 0, + 'd','o','l','l','a','r', 0, + 'p','e','r','c','e','n','t', 0, + 'a','m','p','e','r','s','a','n','d', 0, + 'q','u','o','t','e','r','i','g','h','t', 0, + 'p','a','r','e','n','l','e','f','t', 0, + 'p','a','r','e','n','r','i','g','h','t', 0, + 'a','s','t','e','r','i','s','k', 0, + 'p','l','u','s', 0, + 'c','o','m','m','a', 0, + 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0, + 'E','t','h','s','m','a','l','l', 0, + 'N','t','i','l','d','e','s','m','a','l','l', 0, + 'O','g','r','a','v','e','s','m','a','l','l', 0, + 'O','a','c','u','t','e','s','m','a','l','l', 0, + 'O','c','i','r','c','u','m','f','l','e','x','s','m','a','l','l', 0, + 'O','t','i','l','d','e','s','m','a','l','l', 0, + 'O','d','i','e','r','e','s','i','s','s','m','a','l','l', 0, + 'O','E','s','m','a','l','l', 0, + 'O','s','l','a','s','h','s','m','a','l','l', 0, + 'U','g','r','a','v','e','s','m','a','l','l', 0, + 'U','a','c','u','t','e','s','m','a','l','l', 0, + 'U','c','i','r','c','u','m','f','l','e','x','s','m','a','l','l', 0, + 'U','d','i','e','r','e','s','i','s','s','m','a','l','l', 0, + 'Y','a','c','u','t','e','s','m','a','l','l', 0, + 'T','h','o','r','n','s','m','a','l','l', 0, + 'Y','d','i','e','r','e','s','i','s','s','m','a','l','l', 0, + '0','0','1','.','0','0','0', 0, + '0','0','1','.','0','0','1', 0, + '0','0','1','.','0','0','2', 0, + '0','0','1','.','0','0','3', 0, + 'B','l','a','c','k', 0, + 'B','o','l','d', 0, + 'B','o','o','k', 0, + 'L','i','g','h','t', 0, + 'M','e','d','i','u','m', 0, + 'R','e','g','u','l','a','r', 0, + 'R','o','m','a','n', 0, + 'S','e','m','i','b','o','l','d', 0, + }; + + +#define FT_NUM_MAC_NAMES 258 + + /* Values are offsets into the `ft_standard_glyph_names' table */ + + static const short ft_mac_names[FT_NUM_MAC_NAMES] = + { + 253, 0, 6, 261, 267, 274, 283, 294, 301, 309, 758, 330, 340, 351, + 360, 365, 371, 378, 385, 391, 396, 400, 404, 410, 415, 420, 424, 430, + 436, 441, 447, 457, 462, 468, 476, 485, 488, 490, 492, 494, 496, 498, + 500, 502, 504, 506, 508, 510, 512, 514, 516, 518, 520, 522, 524, 526, + 528, 530, 532, 534, 536, 538, 540, 552, 562, 575, 587, 979, 608, 610, + 612, 614, 616, 618, 620, 622, 624, 626, 628, 630, 632, 634, 636, 638, + 640, 642, 644, 646, 648, 650, 652, 654, 656, 658, 660, 670, 674, 685, + 1375,1392,1405,1414,1486,1512,1562,1603,1632,1610,1622,1645,1639,1652, + 1661,1690,1668,1680,1697,1726,1704,1716,1733,1740,1769,1747,1759,1776, + 1790,1819,1797,1809, 839,1263, 707, 712, 741, 881, 871,1160,1302,1346, + 1197, 985,1031, 23,1086,1108, 32,1219, 41, 51, 730,1194, 64, 76, + 86, 94, 97,1089,1118, 106,1131,1150, 966, 696,1183, 112, 734, 120, + 132, 783, 930, 945, 138,1385,1398,1529,1115,1157, 832,1079, 770, 916, + 598, 319,1246, 155,1833,1586, 721, 749, 797, 811, 826, 829, 846, 856, + 888, 903, 954,1363,1421,1356,1433,1443,1450,1457,1469,1479,1493,1500, + 163,1522,1543,1550,1572,1134, 991,1002,1008,1015,1021,1040,1045,1053, + 1066,1073,1101,1143,1536,1783,1596,1843,1253,1207,1319,1579,1826,1229, + 1270,1313,1323,1171,1290,1332,1211,1235,1276, 169, 175, 182, 189, 200, + 209, 218, 225, 232, 239, 246 + }; + + +#define FT_NUM_SID_NAMES 391 + + /* Values are offsets into the `ft_standard_glyph_names' table */ + + static const short ft_sid_names[FT_NUM_SID_NAMES] = + { + 253, 261, 267, 274, 283, 294, 301, 309, 319, 330, 340, 351, 360, 365, + 371, 378, 385, 391, 396, 400, 404, 410, 415, 420, 424, 430, 436, 441, + 447, 457, 462, 468, 476, 485, 488, 490, 492, 494, 496, 498, 500, 502, + 504, 506, 508, 510, 512, 514, 516, 518, 520, 522, 524, 526, 528, 530, + 532, 534, 536, 538, 540, 552, 562, 575, 587, 598, 608, 610, 612, 614, + 616, 618, 620, 622, 624, 626, 628, 630, 632, 634, 636, 638, 640, 642, + 644, 646, 648, 650, 652, 654, 656, 658, 660, 670, 674, 685, 696, 707, + 712, 721, 730, 734, 741, 749, 758, 770, 783, 797, 811, 826, 829, 832, + 839, 846, 856, 871, 881, 888, 903, 916, 930, 945, 954, 966, 979, 985, + 991,1002,1008,1015,1021,1031,1040,1045,1053,1066,1073,1079,1086,1089, + 1101,1108,1115,1118,1131,1134,1143,1150,1157,1160,1171,1183,1194,1197, + 1207,1211,1219,1229,1235,1246,1253,1263,1270,1276,1290,1302,1313,1319, + 1323,1332,1346,1356,1363,1375,1385,1392,1398,1405,1414,1421,1433,1443, + 1450,1457,1469,1479,1486,1493,1500,1512,1522,1529,1536,1543,1550,1562, + 1572,1579,1586,1596,1603,1610,1622,1632,1639,1645,1652,1661,1668,1680, + 1690,1697,1704,1716,1726,1733,1740,1747,1759,1769,1776,1783,1790,1797, + 1809,1819,1826,1833,1843,1850,1862,1880,1895,1910,1925,1936,1954,1973, + 1988,2003,2016,2028,2040,2054,2067,2080,2092,2106,2120,2133,2147,2167, + 2182,2196,2206,2216,2229,2239,2249,2259,2269,2279,2289,2299,2309,2319, + 2329,2332,2336,2340,2358,2377,2393,2408,2419,2426,2433,2440,2447,2454, + 2461,2468,2475,2482,2489,2496,2503,2510,2517,2524,2531,2538,2545,2552, + 2559,2566,2573,2580,2587,2594,2601,2615,2625,2632,2643,2659,2672,2684, + 2696,2708,2722,2733,2744,2759,2771,2782,2797,2809,2819,2832,2850,2860, + 2873,2885,2898,2907,2917,2930,2943,2956,2968,2982,2996,3009,3022,3034, + 3046,3060,3073,3086,3098,3112,3126,3139,3152,3167,3182,3196,3208,3220, + 3237,3249,3264,3275,3283,3297,3309,3321,3338,3353,3365,3377,3394,3409, + 3418,3430,3442,3454,3471,3483,3498,3506,3518,3530,3542,3559,3574,3586, + 3597,3612,3620,3628,3636,3644,3650,3655,3660,3666,3673,3681,3687 + }; + + + /* the following are indices into the SID name table */ + static const unsigned short t1_standard_encoding[256] = + { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, + 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, + 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, + 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, + 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110, + 0,111,112,113,114, 0,115,116,117,118,119,120,121,122, 0,123, + 0,124,125,126,127,128,129,130,131, 0,132,133, 0,134,135,136, + 137, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0,138, 0,139, 0, 0, 0, 0,140,141,142,143, 0, 0, 0, 0, + 0,144, 0, 0, 0,145, 0, 0,146,147,148,149, 0, 0, 0, 0 + }; + + + /* the following are indices into the SID name table */ + static const unsigned short t1_expert_encoding[256] = + { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 1,229,230, 0,231,232,233,234,235,236,237,238, 13, 14, 15, 99, + 239,240,241,242,243,244,245,246,247,248, 27, 28,249,250,251,252, + 0,253,254,255,256,257, 0, 0, 0,258, 0, 0,259,260,261,262, + 0, 0,263,264,265, 0,266,109,110,267,268,269, 0,270,271,272, + 273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288, + 289,290,291,292,293,294,295,296,297,298,299,300,301,302,303, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0,304,305,306, 0, 0,307,308,309,310,311, 0,312, 0, 0,313, + 0, 0,314,315, 0, 0,316,317,318, 0, 0, 0,158,155,163,319, + 320,321,322,323,324,325, 0, 0,326,150,164,169,327,328,329,330, + 331,332,333,334,335,336,337,338,339,340,341,342,343,344,345,346, + 347,348,349,350,351,352,353,354,355,356,357,358,359,360,361,362, + 363,364,365,366,367,368,369,370,371,372,373,374,375,376,377,378 + }; + + + /* + * This table is a compressed version of the Adobe Glyph List (AGL), + * optimized for efficient searching. It has been generated by the + * `glnames.py' python script located in the `src/tools' directory. + * + * The lookup function to get the Unicode value for a given string + * is defined below the table. + */ + +#ifdef FT_CONFIG_OPTION_ADOBE_GLYPH_LIST + + static const unsigned char ft_adobe_glyph_list[55997L] = + { + 0, 52, 0,106, 2,167, 3, 63, 4,220, 6,125, 9,143, 10, 23, + 11,137, 12,199, 14,246, 15, 87, 16,233, 17,219, 18,104, 19, 88, + 22,110, 23, 32, 23, 71, 24, 77, 27,156, 29, 73, 31,247, 32,107, + 32,222, 33, 55, 34,154, 35,218, 58, 10, 64,122, 72,188, 80,109, + 88,104, 93, 61, 98,168,106, 91,114,111,115,237,122,180,127,255, + 135,164,143,132,149,213,158,108,161,115,168,175,183,147,197,199, + 202, 25,204,166,208,209,209, 81,215, 26, 65,143, 0, 65, 0,140, + 0,175, 0,193, 1, 15, 1,147, 1,233, 1,251, 2, 7, 2, 40, + 2, 57, 2, 82, 2, 91, 2,128, 2,136, 2,154, 69,131, 0,198, + 0,150, 0,158, 0,167,225,227,245,244,101,128, 1,252,237,225, + 227,242,239,110,128, 1,226,243,237,225,236,108,128,247,230,225, + 227,245,244,101,129, 0,193, 0,185,243,237,225,236,108,128,247, + 225,226,242,229,246,101,134, 1, 2, 0,213, 0,221, 0,232, 0, + 243, 0,251, 1, 7,225,227,245,244,101,128, 30,174,227,249,242, + 233,236,236,233, 99,128, 4,208,228,239,244,226,229,236,239,119, + 128, 30,182,231,242,225,246,101,128, 30,176,232,239,239,235,225, + 226,239,246,101,128, 30,178,244,233,236,228,101,128, 30,180, 99, + 4, 1, 25, 1, 32, 1,121, 1,137,225,242,239,110,128, 1,205, + 233,242, 99, 2, 1, 40, 1, 45,236,101,128, 36,182,245,237,230, + 236,229,120,134, 0,194, 1, 66, 1, 74, 1, 85, 1, 93, 1,105, + 1,113,225,227,245,244,101,128, 30,164,228,239,244,226,229,236, + 239,119,128, 30,172,231,242,225,246,101,128, 30,166,232,239,239, + 235,225,226,239,246,101,128, 30,168,243,237,225,236,108,128,247, + 226,244,233,236,228,101,128, 30,170,245,244,101,129,246,201, 1, + 129,243,237,225,236,108,128,247,180,249,242,233,236,236,233, 99, + 128, 4, 16,100, 3, 1,155, 1,165, 1,209,226,236,231,242,225, + 246,101,128, 2, 0,233,229,242,229,243,233,115,131, 0,196, 1, + 181, 1,192, 1,201,227,249,242,233,236,236,233, 99,128, 4,210, + 237,225,227,242,239,110,128, 1,222,243,237,225,236,108,128,247, + 228,239,116, 2, 1,216, 1,224,226,229,236,239,119,128, 30,160, + 237,225,227,242,239,110,128, 1,224,231,242,225,246,101,129, 0, + 192, 1,243,243,237,225,236,108,128,247,224,232,239,239,235,225, + 226,239,246,101,128, 30,162,105, 2, 2, 13, 2, 25,229,227,249, + 242,233,236,236,233, 99,128, 4,212,238,246,229,242,244,229,228, + 226,242,229,246,101,128, 2, 2,236,240,232, 97,129, 3,145, 2, + 49,244,239,238,239,115,128, 3,134,109, 2, 2, 63, 2, 71,225, + 227,242,239,110,128, 1, 0,239,238,239,243,240,225,227,101,128, + 255, 33,239,231,239,238,229,107,128, 1, 4,242,233,238,103,131, + 0,197, 2,104, 2,112, 2,120,225,227,245,244,101,128, 1,250, + 226,229,236,239,119,128, 30, 0,243,237,225,236,108,128,247,229, + 243,237,225,236,108,128,247, 97,244,233,236,228,101,129, 0,195, + 2,146,243,237,225,236,108,128,247,227,249,226,225,242,237,229, + 238,233,225,110,128, 5, 49, 66,137, 0, 66, 2,189, 2,198, 2, + 223, 3, 3, 3, 10, 3, 22, 3, 34, 3, 46, 3, 54,227,233,242, + 227,236,101,128, 36,183,228,239,116, 2, 2,206, 2,215,225,227, + 227,229,238,116,128, 30, 2,226,229,236,239,119,128, 30, 4,101, + 3, 2,231, 2,242, 2,254,227,249,242,233,236,236,233, 99,128, + 4, 17,238,225,242,237,229,238,233,225,110,128, 5, 50,244, 97, + 128, 3,146,232,239,239,107,128, 1,129,236,233,238,229,226,229, + 236,239,119,128, 30, 6,237,239,238,239,243,240,225,227,101,128, + 255, 34,242,229,246,229,243,237,225,236,108,128,246,244,243,237, + 225,236,108,128,247, 98,244,239,240,226,225,114,128, 1,130, 67, + 137, 0, 67, 3, 85, 3,127, 3,193, 3,210, 3,224, 4,171, 4, + 188, 4,200, 4,212, 97, 3, 3, 93, 3,104, 3,111,225,242,237, + 229,238,233,225,110,128, 5, 62,227,245,244,101,128, 1, 6,242, + 239,110,129,246,202, 3,119,243,237,225,236,108,128,246,245, 99, + 3, 3,135, 3,142, 3,171,225,242,239,110,128, 1, 12,229,228, + 233,236,236, 97,130, 0,199, 3,155, 3,163,225,227,245,244,101, + 128, 30, 8,243,237,225,236,108,128,247,231,233,242, 99, 2, 3, + 179, 3,184,236,101,128, 36,184,245,237,230,236,229,120,128, 1, + 8,228,239,116,129, 1, 10, 3,201,225,227,227,229,238,116,128, + 1, 10,229,228,233,236,236,225,243,237,225,236,108,128,247,184, + 104, 4, 3,234, 3,246, 4,161, 4,165,225,225,242,237,229,238, + 233,225,110,128, 5, 73,101, 6, 4, 4, 4, 24, 4, 35, 4,103, + 4,115, 4,136,225,226,235,232,225,243,233,225,238,227,249,242, + 233,236,236,233, 99,128, 4,188,227,249,242,233,236,236,233, 99, + 128, 4, 39,100, 2, 4, 41, 4, 85,229,243,227,229,238,228,229, + 114, 2, 4, 54, 4, 74,225,226,235,232,225,243,233,225,238,227, + 249,242,233,236,236,233, 99,128, 4,190,227,249,242,233,236,236, + 233, 99,128, 4,182,233,229,242,229,243,233,243,227,249,242,233, + 236,236,233, 99,128, 4,244,232,225,242,237,229,238,233,225,110, + 128, 5, 67,235,232,225,235,225,243,243,233,225,238,227,249,242, + 233,236,236,233, 99,128, 4,203,246,229,242,244,233,227,225,236, + 243,244,242,239,235,229,227,249,242,233,236,236,233, 99,128, 4, + 184,105,128, 3,167,239,239,107,128, 1,135,233,242,227,245,237, + 230,236,229,248,243,237,225,236,108,128,246,246,237,239,238,239, + 243,240,225,227,101,128,255, 35,239,225,242,237,229,238,233,225, + 110,128, 5, 81,243,237,225,236,108,128,247, 99, 68,142, 0, 68, + 4,252, 5, 10, 5, 36, 5, 96, 5,121, 5,166, 5,173, 5,231, + 5,244, 6, 0, 6, 12, 6, 28, 6, 48, 6, 57, 90,129, 1,241, + 5, 2,227,225,242,239,110,128, 1,196, 97, 2, 5, 16, 5, 27, + 225,242,237,229,238,233,225,110,128, 5, 52,230,242,233,227,225, + 110,128, 1,137, 99, 4, 5, 46, 5, 53, 5, 62, 5, 89,225,242, + 239,110,128, 1, 14,229,228,233,236,236, 97,128, 30, 16,233,242, + 99, 2, 5, 70, 5, 75,236,101,128, 36,185,245,237,230,236,229, + 248,226,229,236,239,119,128, 30, 18,242,239,225,116,128, 1, 16, + 228,239,116, 2, 5,104, 5,113,225,227,227,229,238,116,128, 30, + 10,226,229,236,239,119,128, 30, 12,101, 3, 5,129, 5,140, 5, 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96,115, 3,214,108,214,146,214,187,226,233,103, 2, + 214,116,214,127,227,249,242,233,236,236,233, 99,128, 4,107,233, + 239,244,233,230,233,229,228,227,249,242,233,236,236,233, 99,128, + 4,109,236,233,244,244,236,101, 2,214,157,214,168,227,249,242, + 233,236,236,233, 99,128, 4,103,233,239,244,233,230,233,229,228, + 227,249,242,233,236,236,233, 99,128, 4,105,237,225,236,108, 2, + 214,196,214,207,232,233,242,225,231,225,238, 97,128, 48,133,235, + 225,244,225,235,225,238, 97,129, 48,229,214,220,232,225,236,230, + 247,233,228,244,104,128,255,109,249,101, 2,214,239,214,248,235, + 239,242,229,225,110,128, 49,139,239,235,239,242,229,225,110,128, + 49,138,249, 97, 2,215, 9,215, 19,226,229,238,231,225,236,105, + 128, 9,223,228,229,246, 97,128, 9, 95,122,142, 0,122,215, 58, + 216, 66,216, 77,216,120,216,147,217,182,218, 34,218, 76,218, 88, + 218,100,218,128,218,136,218,152,218,161, 97, 10,215, 80,215, 91, + 215, 98,215,105,215,116,215,194,215,224,215,235,216, 15,216, 27, + 225,242,237,229,238,233,225,110,128, 5,102,227,245,244,101,128, + 1,122,228,229,246, 97,128, 9, 91,231,245,242,237,245,235,232, + 105,128, 10, 91,104, 4,215,126,215,135,215,149,215,179,225,242, + 225,226,233, 99,128, 6, 56,230,233,238,225,236,225,242,225,226, + 233, 99,128,254,198,105, 2,215,155,215,170,238,233,244,233,225, + 236,225,242,225,226,233, 99,128,254,199,242,225,231,225,238, 97, + 128, 48, 86,237,229,228,233,225,236,225,242,225,226,233, 99,128, + 254,200,233,110, 2,215,201,215,210,225,242,225,226,233, 99,128, + 6, 50,230,233,238,225,236,225,242,225,226,233, 99,128,254,176, + 235,225,244,225,235,225,238, 97,128, 48,182,241,229,102, 2,215, + 243,216, 1,231,225,228,239,236,232,229,226,242,229,119,128, 5, + 149,241,225,244,225,238,232,229,226,242,229,119,128, 5,148,242, + 241,225,232,229,226,242,229,119,128, 5,152,249,233,110,130, 5, + 214,216, 37,216, 57,228,225,231,229,243,104,129,251, 54,216, 48, + 232,229,226,242,229,119,128,251, 54,232,229,226,242,229,119,128, + 5,214,226,239,240,239,237,239,230,111,128, 49, 23, 99, 3,216, + 85,216, 92,216,114,225,242,239,110,128, 1,126,233,242, 99, 2, + 216,100,216,105,236,101,128, 36,233,245,237,230,236,229,120,128, + 30,145,245,242,108,128, 2,145,228,239,116,130, 1,124,216,130, + 216,139,225,227,227,229,238,116,128, 1,124,226,229,236,239,119, + 128, 30,147,101, 6,216,161,216,172,216,215,216,226,216,237,217, + 177,227,249,242,233,236,236,233, 99,128, 4, 55,100, 2,216,178, + 216,197,229,243,227,229,238,228,229,242,227,249,242,233,236,236, + 233, 99,128, 4,153,233,229,242,229,243,233,243,227,249,242,233, + 236,236,233, 99,128, 4,223,232,233,242,225,231,225,238, 97,128, + 48, 92,235,225,244,225,235,225,238, 97,128, 48,188,242,111,140, + 0, 48,217, 10,217, 19,217, 29,217, 36,217, 61,217, 74,217, 85, + 217, 97,217,108,217,118,217,129,217,136,225,242,225,226,233, 99, + 128, 6, 96,226,229,238,231,225,236,105,128, 9,230,228,229,246, + 97,128, 9,102,231,117, 2,217, 43,217, 52,234,225,242,225,244, + 105,128, 10,230,242,237,245,235,232,105,128, 10,102,232,225,227, + 235,225,242,225,226,233, 99,128, 6, 96,233,238,230,229,242,233, + 239,114,128, 32,128,237,239,238,239,243,240,225,227,101,128,255, + 16,239,236,228,243,244,249,236,101,128,247, 48,240,229,242,243, + 233,225,110,128, 6,240,243,245,240,229,242,233,239,114,128, 32, + 112,244,232,225,105,128, 14, 80,247,233,228,244,104, 3,217,148, + 217,157,217,169,234,239,233,238,229,114,128,254,255,238,239,238, + 234,239,233,238,229,114,128, 32, 12,243,240,225,227,101,128, 32, + 11,244, 97,128, 3,182,104, 2,217,188,217,199,226,239,240,239, + 237,239,230,111,128, 49, 19,101, 4,217,209,217,220,217,236,217, + 247,225,242,237,229,238,233,225,110,128, 5,106,226,242,229,246, + 229,227,249,242,233,236,236,233, 99,128, 4,194,227,249,242,233, + 236,236,233, 99,128, 4, 54,100, 2,217,253,218, 16,229,243,227, + 229,238,228,229,242,227,249,242,233,236,236,233, 99,128, 4,151, + 233,229,242,229,243,233,243,227,249,242,233,236,236,233, 99,128, + 4,221,105, 3,218, 42,218, 53,218, 64,232,233,242,225,231,225, + 238, 97,128, 48, 88,235,225,244,225,235,225,238, 97,128, 48,184, + 238,239,242,232,229,226,242,229,119,128, 5,174,236,233,238,229, + 226,229,236,239,119,128, 30,149,237,239,238,239,243,240,225,227, + 101,128,255, 90,111, 2,218,106,218,117,232,233,242,225,231,225, + 238, 97,128, 48, 94,235,225,244,225,235,225,238, 97,128, 48,190, + 240,225,242,229,110,128, 36,181,242,229,244,242,239,230,236,229, + 248,232,239,239,107,128, 2,144,243,244,242,239,235,101,128, 1, + 182,117, 2,218,167,218,178,232,233,242,225,231,225,238, 97,128, + 48, 90,235,225,244,225,235,225,238, 97,128, 48,186 + }; + + + /* + * This function searches the compressed table efficiently. + */ + static unsigned long + ft_get_adobe_glyph_index( const char* name, + const char* limit ) + { + int c = 0; + int count, min, max; + const unsigned char* p = ft_adobe_glyph_list; + + + if ( name == 0 || name >= limit ) + goto NotFound; + + c = *name++; + count = p[1]; + p += 2; + + min = 0; + max = count; + + while ( min < max ) + { + int mid = ( min + max ) >> 1; + const unsigned char* q = p + mid * 2; + int c2; + + + q = ft_adobe_glyph_list + ( ( (int)q[0] << 8 ) | q[1] ); + + c2 = q[0] & 127; + if ( c2 == c ) + { + p = q; + goto Found; + } + if ( c2 < c ) + min = mid + 1; + else + max = mid; + } + goto NotFound; + + Found: + for (;;) + { + /* assert (*p & 127) == c */ + + if ( name >= limit ) + { + if ( (p[0] & 128) == 0 && + (p[1] & 128) != 0 ) + return (unsigned long)( ( (int)p[2] << 8 ) | p[3] ); + + goto NotFound; + } + c = *name++; + if ( p[0] & 128 ) + { + p++; + if ( c != (p[0] & 127) ) + goto NotFound; + + continue; + } + + p++; + count = p[0] & 127; + if ( p[0] & 128 ) + p += 2; + + p++; + + for ( ; count > 0; count--, p += 2 ) + { + int offset = ( (int)p[0] << 8 ) | p[1]; + const unsigned char* q = ft_adobe_glyph_list + offset; + + if ( c == ( q[0] & 127 ) ) + { + p = q; + goto NextIter; + } + } + goto NotFound; + + NextIter: + ; + } + + NotFound: + return 0; + } + +#endif /* FT_CONFIG_OPTION_ADOBE_GLYPH_LIST */ + + +/* END */ diff --git a/src/psnames/rules.mk b/src/psnames/rules.mk new file mode 100644 index 0000000..4cd39a8 --- /dev/null +++ b/src/psnames/rules.mk @@ -0,0 +1,71 @@ +# +# FreeType 2 PSNames driver configuration rules +# + + +# Copyright 1996-2000, 2001, 2003, 2011 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# PSNames driver directory +# +PSNAMES_DIR := $(SRC_DIR)/psnames + + +# compilation flags for the driver +# +PSNAMES_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(PSNAMES_DIR)) + + +# PSNames driver sources (i.e., C files) +# +PSNAMES_DRV_SRC := $(PSNAMES_DIR)/psmodule.c \ + $(PSNAMES_DIR)/pspic.c + + +# PSNames driver headers +# +PSNAMES_DRV_H := $(PSNAMES_DRV_SRC:%.c=%.h) \ + $(PSNAMES_DIR)/psnamerr.h \ + $(PSNAMES_DIR)/pstables.h + + +# PSNames driver object(s) +# +# PSNAMES_DRV_OBJ_M is used during `multi' builds +# PSNAMES_DRV_OBJ_S is used during `single' builds +# +PSNAMES_DRV_OBJ_M := $(PSNAMES_DRV_SRC:$(PSNAMES_DIR)/%.c=$(OBJ_DIR)/%.$O) +PSNAMES_DRV_OBJ_S := $(OBJ_DIR)/psnames.$O + +# PSNames driver source file for single build +# +PSNAMES_DRV_SRC_S := $(PSNAMES_DIR)/psmodule.c + + +# PSNames driver - single object +# +$(PSNAMES_DRV_OBJ_S): $(PSNAMES_DRV_SRC_S) $(PSNAMES_DRV_SRC) \ + $(FREETYPE_H) $(PSNAMES_DRV_H) + $(PSNAMES_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(PSNAMES_DRV_SRC_S)) + + +# PSNames driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(PSNAMES_DIR)/%.c $(FREETYPE_H) $(PSNAMES_DRV_H) + $(PSNAMES_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(PSNAMES_DRV_OBJ_S) +DRV_OBJS_M += $(PSNAMES_DRV_OBJ_M) + + +# EOF diff --git a/src/raster/Jamfile b/src/raster/Jamfile new file mode 100644 index 0000000..4f60e87 --- /dev/null +++ b/src/raster/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/raster Jamfile +# +# Copyright 2001 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) raster ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = ftraster ftrend1 rastpic ; + } + else + { + _sources = raster ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/raster Jamfile diff --git a/src/raster/ftmisc.h b/src/raster/ftmisc.h new file mode 100644 index 0000000..7773924 --- /dev/null +++ b/src/raster/ftmisc.h @@ -0,0 +1,121 @@ +/***************************************************************************/ +/* */ +/* ftmisc.h */ +/* */ +/* Miscellaneous macros for stand-alone rasterizer (specification */ +/* only). */ +/* */ +/* Copyright 2005, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used */ +/* modified and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /***************************************************/ + /* */ + /* This file is *not* portable! You have to adapt */ + /* its definitions to your platform. */ + /* */ + /***************************************************/ + +#ifndef __FTMISC_H__ +#define __FTMISC_H__ + + + /* memset */ +#include FT_CONFIG_STANDARD_LIBRARY_H + +#define FT_BEGIN_HEADER +#define FT_END_HEADER + +#define FT_LOCAL_DEF( x ) static x + + + /* from include/freetype2/fttypes.h */ + + typedef unsigned char FT_Byte; + typedef signed int FT_Int; + typedef unsigned int FT_UInt; + typedef signed long FT_Long; + typedef unsigned long FT_ULong; + typedef signed long FT_F26Dot6; + typedef int FT_Error; + +#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \ + ( ( (FT_ULong)_x1 << 24 ) | \ + ( (FT_ULong)_x2 << 16 ) | \ + ( (FT_ULong)_x3 << 8 ) | \ + (FT_ULong)_x4 ) + + + /* from include/freetype2/ftsystem.h */ + + typedef struct FT_MemoryRec_* FT_Memory; + + typedef void* (*FT_Alloc_Func)( FT_Memory memory, + long size ); + + typedef void (*FT_Free_Func)( FT_Memory memory, + void* block ); + + typedef void* (*FT_Realloc_Func)( FT_Memory memory, + long cur_size, + long new_size, + void* block ); + + typedef struct FT_MemoryRec_ + { + void* user; + + FT_Alloc_Func alloc; + FT_Free_Func free; + FT_Realloc_Func realloc; + + } FT_MemoryRec; + + + /* from src/ftcalc.c */ + +#if ( defined _WIN32 || defined _WIN64 ) + + typedef __int64 FT_Int64; + +#else + +#include "inttypes.h" + + typedef int64_t FT_Int64; + +#endif + + + static FT_Long + FT_MulDiv( FT_Long a, + FT_Long b, + FT_Long c ) + { + FT_Int s; + FT_Long d; + + + s = 1; + if ( a < 0 ) { a = -a; s = -1; } + if ( b < 0 ) { b = -b; s = -s; } + if ( c < 0 ) { c = -c; s = -s; } + + d = (FT_Long)( c > 0 ? ( (FT_Int64)a * b + ( c >> 1 ) ) / c + : 0x7FFFFFFFL ); + + return ( s > 0 ) ? d : -d; + } + +#endif /* __FTMISC_H__ */ + + +/* END */ diff --git a/src/raster/ftraster.c b/src/raster/ftraster.c new file mode 100644 index 0000000..f85845e --- /dev/null +++ b/src/raster/ftraster.c @@ -0,0 +1,3612 @@ +/***************************************************************************/ +/* */ +/* ftraster.c */ +/* */ +/* The FreeType glyph rasterizer (body). */ +/* */ +/* Copyright 1996-2003, 2005, 2007-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* This file can be compiled without the rest of the FreeType engine, by */ + /* defining the _STANDALONE_ macro when compiling it. You also need to */ + /* put the files `ftimage.h' and `ftmisc.h' into the $(incdir) */ + /* directory. Typically, you should do something like */ + /* */ + /* - copy `src/raster/ftraster.c' (this file) to your current directory */ + /* */ + /* - copy `include/freetype/ftimage.h' and `src/raster/ftmisc.h' */ + /* to your current directory */ + /* */ + /* - compile `ftraster' with the _STANDALONE_ macro defined, as in */ + /* */ + /* cc -c -D_STANDALONE_ ftraster.c */ + /* */ + /* The renderer can be initialized with a call to */ + /* `ft_standard_raster.raster_new'; a bitmap can be generated */ + /* with a call to `ft_standard_raster.raster_render'. */ + /* */ + /* See the comments and documentation in the file `ftimage.h' for more */ + /* details on how the raster works. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This is a rewrite of the FreeType 1.x scan-line converter */ + /* */ + /*************************************************************************/ + +#ifdef _STANDALONE_ + +#define FT_CONFIG_STANDARD_LIBRARY_H <stdlib.h> + +#include <string.h> /* for memset */ + +#include "ftmisc.h" +#include "ftimage.h" + +#else /* !_STANDALONE_ */ + +#include <ft2build.h> +#include "ftraster.h" +#include FT_INTERNAL_CALC_H /* for FT_MulDiv only */ + +#include "rastpic.h" + +#endif /* !_STANDALONE_ */ + + + /*************************************************************************/ + /* */ + /* A simple technical note on how the raster works */ + /* ----------------------------------------------- */ + /* */ + /* Converting an outline into a bitmap is achieved in several steps: */ + /* */ + /* 1 - Decomposing the outline into successive `profiles'. Each */ + /* profile is simply an array of scanline intersections on a given */ + /* dimension. A profile's main attributes are */ + /* */ + /* o its scanline position boundaries, i.e. `Ymin' and `Ymax' */ + /* */ + /* o an array of intersection coordinates for each scanline */ + /* between `Ymin' and `Ymax' */ + /* */ + /* o a direction, indicating whether it was built going `up' or */ + /* `down', as this is very important for filling rules */ + /* */ + /* o its drop-out mode */ + /* */ + /* 2 - Sweeping the target map's scanlines in order to compute segment */ + /* `spans' which are then filled. Additionally, this pass */ + /* performs drop-out control. */ + /* */ + /* The outline data is parsed during step 1 only. The profiles are */ + /* built from the bottom of the render pool, used as a stack. The */ + /* following graphics shows the profile list under construction: */ + /* */ + /* __________________________________________________________ _ _ */ + /* | | | | | */ + /* | profile | coordinates for | profile | coordinates for |--> */ + /* | 1 | profile 1 | 2 | profile 2 |--> */ + /* |_________|_________________|_________|_________________|__ _ _ */ + /* */ + /* ^ ^ */ + /* | | */ + /* start of render pool top */ + /* */ + /* The top of the profile stack is kept in the `top' variable. */ + /* */ + /* As you can see, a profile record is pushed on top of the render */ + /* pool, which is then followed by its coordinates/intersections. If */ + /* a change of direction is detected in the outline, a new profile is */ + /* generated until the end of the outline. */ + /* */ + /* Note that when all profiles have been generated, the function */ + /* Finalize_Profile_Table() is used to record, for each profile, its */ + /* bottom-most scanline as well as the scanline above its upmost */ + /* boundary. These positions are called `y-turns' because they (sort */ + /* of) correspond to local extrema. They are stored in a sorted list */ + /* built from the top of the render pool as a downwards stack: */ + /* */ + /* _ _ _______________________________________ */ + /* | | */ + /* <--| sorted list of | */ + /* <--| extrema scanlines | */ + /* _ _ __________________|____________________| */ + /* */ + /* ^ ^ */ + /* | | */ + /* maxBuff sizeBuff = end of pool */ + /* */ + /* This list is later used during the sweep phase in order to */ + /* optimize performance (see technical note on the sweep below). */ + /* */ + /* Of course, the raster detects whether the two stacks collide and */ + /* handles the situation properly. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** CONFIGURATION MACROS **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + /* define DEBUG_RASTER if you want to compile a debugging version */ +/* #define DEBUG_RASTER */ + + /* define FT_RASTER_OPTION_ANTI_ALIASING if you want to support */ + /* 5-levels anti-aliasing */ +/* #define FT_RASTER_OPTION_ANTI_ALIASING */ + + /* The size of the two-lines intermediate bitmap used */ + /* for anti-aliasing, in bytes. */ +#define RASTER_GRAY_LINES 2048 + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** OTHER MACROS (do not change) **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_raster + + +#ifdef _STANDALONE_ + + + /* This macro is used to indicate that a function parameter is unused. */ + /* Its purpose is simply to reduce compiler warnings. Note also that */ + /* simply defining it as `(void)x' doesn't avoid warnings with certain */ + /* ANSI compilers (e.g. LCC). */ +#define FT_UNUSED( x ) (x) = (x) + + /* Disable the tracing mechanism for simplicity -- developers can */ + /* activate it easily by redefining these two macros. */ +#ifndef FT_ERROR +#define FT_ERROR( x ) do { } while ( 0 ) /* nothing */ +#endif + +#ifndef FT_TRACE +#define FT_TRACE( x ) do { } while ( 0 ) /* nothing */ +#define FT_TRACE1( x ) do { } while ( 0 ) /* nothing */ +#define FT_TRACE6( x ) do { } while ( 0 ) /* nothing */ +#endif + +#define Raster_Err_None 0 +#define Raster_Err_Not_Ini -1 +#define Raster_Err_Overflow -2 +#define Raster_Err_Neg_Height -3 +#define Raster_Err_Invalid -4 +#define Raster_Err_Unsupported -5 + +#define ft_memset memset + +#define FT_DEFINE_RASTER_FUNCS( class_, glyph_format_, raster_new_, \ + raster_reset_, raster_set_mode_, \ + raster_render_, raster_done_ ) \ + const FT_Raster_Funcs class_ = \ + { \ + glyph_format_, \ + raster_new_, \ + raster_reset_, \ + raster_set_mode_, \ + raster_render_, \ + raster_done_ \ + }; + +#else /* !_STANDALONE_ */ + + +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H /* for FT_TRACE() and FT_ERROR() */ + +#include "rasterrs.h" + +#define Raster_Err_None Raster_Err_Ok +#define Raster_Err_Not_Ini Raster_Err_Raster_Uninitialized +#define Raster_Err_Overflow Raster_Err_Raster_Overflow +#define Raster_Err_Neg_Height Raster_Err_Raster_Negative_Height +#define Raster_Err_Invalid Raster_Err_Invalid_Outline +#define Raster_Err_Unsupported Raster_Err_Cannot_Render_Glyph + + +#endif /* !_STANDALONE_ */ + + +#ifndef FT_MEM_SET +#define FT_MEM_SET( d, s, c ) ft_memset( d, s, c ) +#endif + +#ifndef FT_MEM_ZERO +#define FT_MEM_ZERO( dest, count ) FT_MEM_SET( dest, 0, count ) +#endif + + /* FMulDiv means `Fast MulDiv'; it is used in case where `b' is */ + /* typically a small value and the result of a*b is known to fit into */ + /* 32 bits. */ +#define FMulDiv( a, b, c ) ( (a) * (b) / (c) ) + + /* On the other hand, SMulDiv means `Slow MulDiv', and is used typically */ + /* for clipping computations. It simply uses the FT_MulDiv() function */ + /* defined in `ftcalc.h'. */ +#define SMulDiv FT_MulDiv + + /* The rasterizer is a very general purpose component; please leave */ + /* the following redefinitions there (you never know your target */ + /* environment). */ + +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + +#ifndef NULL +#define NULL (void*)0 +#endif + +#ifndef SUCCESS +#define SUCCESS 0 +#endif + +#ifndef FAILURE +#define FAILURE 1 +#endif + + +#define MaxBezier 32 /* The maximum number of stacked Bezier curves. */ + /* Setting this constant to more than 32 is a */ + /* pure waste of space. */ + +#define Pixel_Bits 6 /* fractional bits of *input* coordinates */ + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** SIMPLE TYPE DECLARATIONS **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + typedef int Int; + typedef unsigned int UInt; + typedef short Short; + typedef unsigned short UShort, *PUShort; + typedef long Long, *PLong; + + typedef unsigned char Byte, *PByte; + typedef char Bool; + + + typedef union Alignment_ + { + long l; + void* p; + void (*f)(void); + + } Alignment, *PAlignment; + + + typedef struct TPoint_ + { + Long x; + Long y; + + } TPoint; + + + /* values for the `flags' bit field */ +#define Flow_Up 0x8 +#define Overshoot_Top 0x10 +#define Overshoot_Bottom 0x20 + + + /* States of each line, arc, and profile */ + typedef enum TStates_ + { + Unknown_State, + Ascending_State, + Descending_State, + Flat_State + + } TStates; + + + typedef struct TProfile_ TProfile; + typedef TProfile* PProfile; + + struct TProfile_ + { + FT_F26Dot6 X; /* current coordinate during sweep */ + PProfile link; /* link to next profile (various purposes) */ + PLong offset; /* start of profile's data in render pool */ + unsigned flags; /* Bit 0-2: drop-out mode */ + /* Bit 3: profile orientation (up/down) */ + /* Bit 4: is top profile? */ + /* Bit 5: is bottom profile? */ + long height; /* profile's height in scanlines */ + long start; /* profile's starting scanline */ + + unsigned countL; /* number of lines to step before this */ + /* profile becomes drawable */ + + PProfile next; /* next profile in same contour, used */ + /* during drop-out control */ + }; + + typedef PProfile TProfileList; + typedef PProfile* PProfileList; + + + /* Simple record used to implement a stack of bands, required */ + /* by the sub-banding mechanism */ + typedef struct black_TBand_ + { + Short y_min; /* band's minimum */ + Short y_max; /* band's maximum */ + + } black_TBand; + + +#define AlignProfileSize \ + ( ( sizeof ( TProfile ) + sizeof ( Alignment ) - 1 ) / sizeof ( long ) ) + + +#undef RAS_ARG +#undef RAS_ARGS +#undef RAS_VAR +#undef RAS_VARS + +#ifdef FT_STATIC_RASTER + + +#define RAS_ARGS /* void */ +#define RAS_ARG /* void */ + +#define RAS_VARS /* void */ +#define RAS_VAR /* void */ + +#define FT_UNUSED_RASTER do { } while ( 0 ) + + +#else /* !FT_STATIC_RASTER */ + + +#define RAS_ARGS black_PWorker worker, +#define RAS_ARG black_PWorker worker + +#define RAS_VARS worker, +#define RAS_VAR worker + +#define FT_UNUSED_RASTER FT_UNUSED( worker ) + + +#endif /* !FT_STATIC_RASTER */ + + + typedef struct black_TWorker_ black_TWorker, *black_PWorker; + + + /* prototypes used for sweep function dispatch */ + typedef void + Function_Sweep_Init( RAS_ARGS Short* min, + Short* max ); + + typedef void + Function_Sweep_Span( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ); + + typedef void + Function_Sweep_Step( RAS_ARG ); + + + /* NOTE: These operations are only valid on 2's complement processors */ +#undef FLOOR +#undef CEILING +#undef TRUNC +#undef SCALED + +#define FLOOR( x ) ( (x) & -ras.precision ) +#define CEILING( x ) ( ( (x) + ras.precision - 1 ) & -ras.precision ) +#define TRUNC( x ) ( (signed long)(x) >> ras.precision_bits ) +#define FRAC( x ) ( (x) & ( ras.precision - 1 ) ) +#define SCALED( x ) ( ( (x) << ras.scale_shift ) - ras.precision_half ) + +#define IS_BOTTOM_OVERSHOOT( x ) ( CEILING( x ) - x >= ras.precision_half ) +#define IS_TOP_OVERSHOOT( x ) ( x - FLOOR( x ) >= ras.precision_half ) + + /* The most used variables are positioned at the top of the structure. */ + /* Thus, their offset can be coded with less opcodes, resulting in a */ + /* smaller executable. */ + + struct black_TWorker_ + { + Int precision_bits; /* precision related variables */ + Int precision; + Int precision_half; + Int precision_shift; + Int precision_step; + Int precision_jitter; + + Int scale_shift; /* == precision_shift for bitmaps */ + /* == precision_shift+1 for pixmaps */ + + PLong buff; /* The profiles buffer */ + PLong sizeBuff; /* Render pool size */ + PLong maxBuff; /* Profiles buffer size */ + PLong top; /* Current cursor in buffer */ + + FT_Error error; + + Int numTurns; /* number of Y-turns in outline */ + + TPoint* arc; /* current Bezier arc pointer */ + + UShort bWidth; /* target bitmap width */ + PByte bTarget; /* target bitmap buffer */ + PByte gTarget; /* target pixmap buffer */ + + Long lastX, lastY; + Long minY, maxY; + + UShort num_Profs; /* current number of profiles */ + + Bool fresh; /* signals a fresh new profile which */ + /* `start' field must be completed */ + Bool joint; /* signals that the last arc ended */ + /* exactly on a scanline. Allows */ + /* removal of doublets */ + PProfile cProfile; /* current profile */ + PProfile fProfile; /* head of linked list of profiles */ + PProfile gProfile; /* contour's first profile in case */ + /* of impact */ + + TStates state; /* rendering state */ + + FT_Bitmap target; /* description of target bit/pixmap */ + FT_Outline outline; + + Long traceOfs; /* current offset in target bitmap */ + Long traceG; /* current offset in target pixmap */ + + Short traceIncr; /* sweep's increment in target bitmap */ + + Short gray_min_x; /* current min x during gray rendering */ + Short gray_max_x; /* current max x during gray rendering */ + + /* dispatch variables */ + + Function_Sweep_Init* Proc_Sweep_Init; + Function_Sweep_Span* Proc_Sweep_Span; + Function_Sweep_Span* Proc_Sweep_Drop; + Function_Sweep_Step* Proc_Sweep_Step; + + Byte dropOutControl; /* current drop_out control method */ + + Bool second_pass; /* indicates whether a horizontal pass */ + /* should be performed to control */ + /* drop-out accurately when calling */ + /* Render_Glyph. Note that there is */ + /* no horizontal pass during gray */ + /* rendering. */ + + TPoint arcs[3 * MaxBezier + 1]; /* The Bezier stack */ + + black_TBand band_stack[16]; /* band stack used for sub-banding */ + Int band_top; /* band stack top */ + +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + + Byte* grays; + + Byte gray_lines[RASTER_GRAY_LINES]; + /* Intermediate table used to render the */ + /* graylevels pixmaps. */ + /* gray_lines is a buffer holding two */ + /* monochrome scanlines */ + + Short gray_width; /* width in bytes of one monochrome */ + /* intermediate scanline of gray_lines. */ + /* Each gray pixel takes 2 bits long there */ + + /* The gray_lines must hold 2 lines, thus with size */ + /* in bytes of at least `gray_width*2'. */ + +#endif /* FT_RASTER_ANTI_ALIASING */ + + }; + + + typedef struct black_TRaster_ + { + char* buffer; + long buffer_size; + void* memory; + black_PWorker worker; + Byte grays[5]; + Short gray_width; + + } black_TRaster, *black_PRaster; + +#ifdef FT_STATIC_RASTER + + static black_TWorker cur_ras; +#define ras cur_ras + +#else /* !FT_STATIC_RASTER */ + +#define ras (*worker) + +#endif /* !FT_STATIC_RASTER */ + + +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + + /* A lookup table used to quickly count set bits in four gray 2x2 */ + /* cells. The values of the table have been produced with the */ + /* following code: */ + /* */ + /* for ( i = 0; i < 256; i++ ) */ + /* { */ + /* l = 0; */ + /* j = i; */ + /* */ + /* for ( c = 0; c < 4; c++ ) */ + /* { */ + /* l <<= 4; */ + /* */ + /* if ( j & 0x80 ) l++; */ + /* if ( j & 0x40 ) l++; */ + /* */ + /* j = ( j << 2 ) & 0xFF; */ + /* } */ + /* printf( "0x%04X", l ); */ + /* } */ + /* */ + + static const short count_table[256] = + { + 0x0000, 0x0001, 0x0001, 0x0002, 0x0010, 0x0011, 0x0011, 0x0012, + 0x0010, 0x0011, 0x0011, 0x0012, 0x0020, 0x0021, 0x0021, 0x0022, + 0x0100, 0x0101, 0x0101, 0x0102, 0x0110, 0x0111, 0x0111, 0x0112, + 0x0110, 0x0111, 0x0111, 0x0112, 0x0120, 0x0121, 0x0121, 0x0122, + 0x0100, 0x0101, 0x0101, 0x0102, 0x0110, 0x0111, 0x0111, 0x0112, + 0x0110, 0x0111, 0x0111, 0x0112, 0x0120, 0x0121, 0x0121, 0x0122, + 0x0200, 0x0201, 0x0201, 0x0202, 0x0210, 0x0211, 0x0211, 0x0212, + 0x0210, 0x0211, 0x0211, 0x0212, 0x0220, 0x0221, 0x0221, 0x0222, + 0x1000, 0x1001, 0x1001, 0x1002, 0x1010, 0x1011, 0x1011, 0x1012, + 0x1010, 0x1011, 0x1011, 0x1012, 0x1020, 0x1021, 0x1021, 0x1022, + 0x1100, 0x1101, 0x1101, 0x1102, 0x1110, 0x1111, 0x1111, 0x1112, + 0x1110, 0x1111, 0x1111, 0x1112, 0x1120, 0x1121, 0x1121, 0x1122, + 0x1100, 0x1101, 0x1101, 0x1102, 0x1110, 0x1111, 0x1111, 0x1112, + 0x1110, 0x1111, 0x1111, 0x1112, 0x1120, 0x1121, 0x1121, 0x1122, + 0x1200, 0x1201, 0x1201, 0x1202, 0x1210, 0x1211, 0x1211, 0x1212, + 0x1210, 0x1211, 0x1211, 0x1212, 0x1220, 0x1221, 0x1221, 0x1222, + 0x1000, 0x1001, 0x1001, 0x1002, 0x1010, 0x1011, 0x1011, 0x1012, + 0x1010, 0x1011, 0x1011, 0x1012, 0x1020, 0x1021, 0x1021, 0x1022, + 0x1100, 0x1101, 0x1101, 0x1102, 0x1110, 0x1111, 0x1111, 0x1112, + 0x1110, 0x1111, 0x1111, 0x1112, 0x1120, 0x1121, 0x1121, 0x1122, + 0x1100, 0x1101, 0x1101, 0x1102, 0x1110, 0x1111, 0x1111, 0x1112, + 0x1110, 0x1111, 0x1111, 0x1112, 0x1120, 0x1121, 0x1121, 0x1122, + 0x1200, 0x1201, 0x1201, 0x1202, 0x1210, 0x1211, 0x1211, 0x1212, + 0x1210, 0x1211, 0x1211, 0x1212, 0x1220, 0x1221, 0x1221, 0x1222, + 0x2000, 0x2001, 0x2001, 0x2002, 0x2010, 0x2011, 0x2011, 0x2012, + 0x2010, 0x2011, 0x2011, 0x2012, 0x2020, 0x2021, 0x2021, 0x2022, + 0x2100, 0x2101, 0x2101, 0x2102, 0x2110, 0x2111, 0x2111, 0x2112, + 0x2110, 0x2111, 0x2111, 0x2112, 0x2120, 0x2121, 0x2121, 0x2122, + 0x2100, 0x2101, 0x2101, 0x2102, 0x2110, 0x2111, 0x2111, 0x2112, + 0x2110, 0x2111, 0x2111, 0x2112, 0x2120, 0x2121, 0x2121, 0x2122, + 0x2200, 0x2201, 0x2201, 0x2202, 0x2210, 0x2211, 0x2211, 0x2212, + 0x2210, 0x2211, 0x2211, 0x2212, 0x2220, 0x2221, 0x2221, 0x2222 + }; + +#endif /* FT_RASTER_OPTION_ANTI_ALIASING */ + + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** PROFILES COMPUTATION **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Set_High_Precision */ + /* */ + /* <Description> */ + /* Set precision variables according to param flag. */ + /* */ + /* <Input> */ + /* High :: Set to True for high precision (typically for ppem < 18), */ + /* false otherwise. */ + /* */ + static void + Set_High_Precision( RAS_ARGS Int High ) + { + /* + * `precision_step' is used in `Bezier_Up' to decide when to split a + * given y-monotonous Bezier arc that crosses a scanline before + * approximating it as a straight segment. The default value of 32 (for + * low accuracy) corresponds to + * + * 32 / 64 == 0.5 pixels , + * + * while for the high accuracy case we have + * + * 256/ (1 << 12) = 0.0625 pixels . + * + * `precision_jitter' is an epsilon threshold used in + * `Vertical_Sweep_Span' to deal with small imperfections in the Bezier + * decomposition (after all, we are working with approximations only); + * it avoids switching on additional pixels which would cause artifacts + * otherwise. + * + * The value of `precision_jitter' has been determined heuristically. + * + */ + + if ( High ) + { + ras.precision_bits = 12; + ras.precision_step = 256; + ras.precision_jitter = 30; + } + else + { + ras.precision_bits = 6; + ras.precision_step = 32; + ras.precision_jitter = 2; + } + + FT_TRACE6(( "Set_High_Precision(%s)\n", High ? "true" : "false" )); + + ras.precision = 1 << ras.precision_bits; + ras.precision_half = ras.precision / 2; + ras.precision_shift = ras.precision_bits - Pixel_Bits; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* New_Profile */ + /* */ + /* <Description> */ + /* Create a new profile in the render pool. */ + /* */ + /* <Input> */ + /* aState :: The state/orientation of the new profile. */ + /* */ + /* overshoot :: Whether the profile's unrounded start position */ + /* differs by at least a half pixel. */ + /* */ + /* <Return> */ + /* SUCCESS on success. FAILURE in case of overflow or of incoherent */ + /* profile. */ + /* */ + static Bool + New_Profile( RAS_ARGS TStates aState, + Bool overshoot ) + { + if ( !ras.fProfile ) + { + ras.cProfile = (PProfile)ras.top; + ras.fProfile = ras.cProfile; + ras.top += AlignProfileSize; + } + + if ( ras.top >= ras.maxBuff ) + { + ras.error = Raster_Err_Overflow; + return FAILURE; + } + + ras.cProfile->flags = 0; + ras.cProfile->start = 0; + ras.cProfile->height = 0; + ras.cProfile->offset = ras.top; + ras.cProfile->link = (PProfile)0; + ras.cProfile->next = (PProfile)0; + ras.cProfile->flags = ras.dropOutControl; + + switch ( aState ) + { + case Ascending_State: + ras.cProfile->flags |= Flow_Up; + if ( overshoot ) + ras.cProfile->flags |= Overshoot_Bottom; + + FT_TRACE6(( "New ascending profile = %p\n", ras.cProfile )); + break; + + case Descending_State: + if ( overshoot ) + ras.cProfile->flags |= Overshoot_Top; + FT_TRACE6(( "New descending profile = %p\n", ras.cProfile )); + break; + + default: + FT_ERROR(( "New_Profile: invalid profile direction\n" )); + ras.error = Raster_Err_Invalid; + return FAILURE; + } + + if ( !ras.gProfile ) + ras.gProfile = ras.cProfile; + + ras.state = aState; + ras.fresh = TRUE; + ras.joint = FALSE; + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* End_Profile */ + /* */ + /* <Description> */ + /* Finalize the current profile. */ + /* */ + /* <Input> */ + /* overshoot :: Whether the profile's unrounded end position differs */ + /* by at least a half pixel. */ + /* */ + /* <Return> */ + /* SUCCESS on success. FAILURE in case of overflow or incoherency. */ + /* */ + static Bool + End_Profile( RAS_ARGS Bool overshoot ) + { + Long h; + PProfile oldProfile; + + + h = (Long)( ras.top - ras.cProfile->offset ); + + if ( h < 0 ) + { + FT_ERROR(( "End_Profile: negative height encountered\n" )); + ras.error = Raster_Err_Neg_Height; + return FAILURE; + } + + if ( h > 0 ) + { + FT_TRACE6(( "Ending profile %p, start = %ld, height = %ld\n", + ras.cProfile, ras.cProfile->start, h )); + + ras.cProfile->height = h; + if ( overshoot ) + { + if ( ras.cProfile->flags & Flow_Up ) + ras.cProfile->flags |= Overshoot_Top; + else + ras.cProfile->flags |= Overshoot_Bottom; + } + + oldProfile = ras.cProfile; + ras.cProfile = (PProfile)ras.top; + + ras.top += AlignProfileSize; + + ras.cProfile->height = 0; + ras.cProfile->offset = ras.top; + + oldProfile->next = ras.cProfile; + ras.num_Profs++; + } + + if ( ras.top >= ras.maxBuff ) + { + FT_TRACE1(( "overflow in End_Profile\n" )); + ras.error = Raster_Err_Overflow; + return FAILURE; + } + + ras.joint = FALSE; + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Insert_Y_Turn */ + /* */ + /* <Description> */ + /* Insert a salient into the sorted list placed on top of the render */ + /* pool. */ + /* */ + /* <Input> */ + /* New y scanline position. */ + /* */ + /* <Return> */ + /* SUCCESS on success. FAILURE in case of overflow. */ + /* */ + static Bool + Insert_Y_Turn( RAS_ARGS Int y ) + { + PLong y_turns; + Int y2, n; + + + n = ras.numTurns - 1; + y_turns = ras.sizeBuff - ras.numTurns; + + /* look for first y value that is <= */ + while ( n >= 0 && y < y_turns[n] ) + n--; + + /* if it is <, simply insert it, ignore if == */ + if ( n >= 0 && y > y_turns[n] ) + while ( n >= 0 ) + { + y2 = (Int)y_turns[n]; + y_turns[n] = y; + y = y2; + n--; + } + + if ( n < 0 ) + { + ras.maxBuff--; + if ( ras.maxBuff <= ras.top ) + { + ras.error = Raster_Err_Overflow; + return FAILURE; + } + ras.numTurns++; + ras.sizeBuff[-ras.numTurns] = y; + } + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Finalize_Profile_Table */ + /* */ + /* <Description> */ + /* Adjust all links in the profiles list. */ + /* */ + /* <Return> */ + /* SUCCESS on success. FAILURE in case of overflow. */ + /* */ + static Bool + Finalize_Profile_Table( RAS_ARG ) + { + Int bottom, top; + UShort n; + PProfile p; + + + n = ras.num_Profs; + p = ras.fProfile; + + if ( n > 1 && p ) + { + while ( n > 0 ) + { + if ( n > 1 ) + p->link = (PProfile)( p->offset + p->height ); + else + p->link = NULL; + + if ( p->flags & Flow_Up ) + { + bottom = (Int)p->start; + top = (Int)( p->start + p->height - 1 ); + } + else + { + bottom = (Int)( p->start - p->height + 1 ); + top = (Int)p->start; + p->start = bottom; + p->offset += p->height - 1; + } + + if ( Insert_Y_Turn( RAS_VARS bottom ) || + Insert_Y_Turn( RAS_VARS top + 1 ) ) + return FAILURE; + + p = p->link; + n--; + } + } + else + ras.fProfile = NULL; + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Split_Conic */ + /* */ + /* <Description> */ + /* Subdivide one conic Bezier into two joint sub-arcs in the Bezier */ + /* stack. */ + /* */ + /* <Input> */ + /* None (subdivided Bezier is taken from the top of the stack). */ + /* */ + /* <Note> */ + /* This routine is the `beef' of this component. It is _the_ inner */ + /* loop that should be optimized to hell to get the best performance. */ + /* */ + static void + Split_Conic( TPoint* base ) + { + Long a, b; + + + base[4].x = base[2].x; + b = base[1].x; + a = base[3].x = ( base[2].x + b ) / 2; + b = base[1].x = ( base[0].x + b ) / 2; + base[2].x = ( a + b ) / 2; + + base[4].y = base[2].y; + b = base[1].y; + a = base[3].y = ( base[2].y + b ) / 2; + b = base[1].y = ( base[0].y + b ) / 2; + base[2].y = ( a + b ) / 2; + + /* hand optimized. gcc doesn't seem to be too good at common */ + /* expression substitution and instruction scheduling ;-) */ + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Split_Cubic */ + /* */ + /* <Description> */ + /* Subdivide a third-order Bezier arc into two joint sub-arcs in the */ + /* Bezier stack. */ + /* */ + /* <Note> */ + /* This routine is the `beef' of the component. It is one of _the_ */ + /* inner loops that should be optimized like hell to get the best */ + /* performance. */ + /* */ + static void + Split_Cubic( TPoint* base ) + { + Long a, b, c, d; + + + base[6].x = base[3].x; + c = base[1].x; + d = base[2].x; + base[1].x = a = ( base[0].x + c + 1 ) >> 1; + base[5].x = b = ( base[3].x + d + 1 ) >> 1; + c = ( c + d + 1 ) >> 1; + base[2].x = a = ( a + c + 1 ) >> 1; + base[4].x = b = ( b + c + 1 ) >> 1; + base[3].x = ( a + b + 1 ) >> 1; + + base[6].y = base[3].y; + c = base[1].y; + d = base[2].y; + base[1].y = a = ( base[0].y + c + 1 ) >> 1; + base[5].y = b = ( base[3].y + d + 1 ) >> 1; + c = ( c + d + 1 ) >> 1; + base[2].y = a = ( a + c + 1 ) >> 1; + base[4].y = b = ( b + c + 1 ) >> 1; + base[3].y = ( a + b + 1 ) >> 1; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Line_Up */ + /* */ + /* <Description> */ + /* Compute the x-coordinates of an ascending line segment and store */ + /* them in the render pool. */ + /* */ + /* <Input> */ + /* x1 :: The x-coordinate of the segment's start point. */ + /* */ + /* y1 :: The y-coordinate of the segment's start point. */ + /* */ + /* x2 :: The x-coordinate of the segment's end point. */ + /* */ + /* y2 :: The y-coordinate of the segment's end point. */ + /* */ + /* miny :: A lower vertical clipping bound value. */ + /* */ + /* maxy :: An upper vertical clipping bound value. */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow. */ + /* */ + static Bool + Line_Up( RAS_ARGS Long x1, + Long y1, + Long x2, + Long y2, + Long miny, + Long maxy ) + { + Long Dx, Dy; + Int e1, e2, f1, f2, size; /* XXX: is `Short' sufficient? */ + Long Ix, Rx, Ax; + + PLong top; + + + Dx = x2 - x1; + Dy = y2 - y1; + + if ( Dy <= 0 || y2 < miny || y1 > maxy ) + return SUCCESS; + + if ( y1 < miny ) + { + /* Take care: miny-y1 can be a very large value; we use */ + /* a slow MulDiv function to avoid clipping bugs */ + x1 += SMulDiv( Dx, miny - y1, Dy ); + e1 = (Int)TRUNC( miny ); + f1 = 0; + } + else + { + e1 = (Int)TRUNC( y1 ); + f1 = (Int)FRAC( y1 ); + } + + if ( y2 > maxy ) + { + /* x2 += FMulDiv( Dx, maxy - y2, Dy ); UNNECESSARY */ + e2 = (Int)TRUNC( maxy ); + f2 = 0; + } + else + { + e2 = (Int)TRUNC( y2 ); + f2 = (Int)FRAC( y2 ); + } + + if ( f1 > 0 ) + { + if ( e1 == e2 ) + return SUCCESS; + else + { + x1 += SMulDiv( Dx, ras.precision - f1, Dy ); + e1 += 1; + } + } + else + if ( ras.joint ) + { + ras.top--; + ras.joint = FALSE; + } + + ras.joint = (char)( f2 == 0 ); + + if ( ras.fresh ) + { + ras.cProfile->start = e1; + ras.fresh = FALSE; + } + + size = e2 - e1 + 1; + if ( ras.top + size >= ras.maxBuff ) + { + ras.error = Raster_Err_Overflow; + return FAILURE; + } + + if ( Dx > 0 ) + { + Ix = SMulDiv( ras.precision, Dx, Dy); + Rx = ( ras.precision * Dx ) % Dy; + Dx = 1; + } + else + { + Ix = SMulDiv( ras.precision, -Dx, Dy) * -1; + Rx = ( ras.precision * -Dx ) % Dy; + Dx = -1; + } + + Ax = -Dy; + top = ras.top; + + while ( size > 0 ) + { + *top++ = x1; + + x1 += Ix; + Ax += Rx; + if ( Ax >= 0 ) + { + Ax -= Dy; + x1 += Dx; + } + size--; + } + + ras.top = top; + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Line_Down */ + /* */ + /* <Description> */ + /* Compute the x-coordinates of an descending line segment and store */ + /* them in the render pool. */ + /* */ + /* <Input> */ + /* x1 :: The x-coordinate of the segment's start point. */ + /* */ + /* y1 :: The y-coordinate of the segment's start point. */ + /* */ + /* x2 :: The x-coordinate of the segment's end point. */ + /* */ + /* y2 :: The y-coordinate of the segment's end point. */ + /* */ + /* miny :: A lower vertical clipping bound value. */ + /* */ + /* maxy :: An upper vertical clipping bound value. */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow. */ + /* */ + static Bool + Line_Down( RAS_ARGS Long x1, + Long y1, + Long x2, + Long y2, + Long miny, + Long maxy ) + { + Bool result, fresh; + + + fresh = ras.fresh; + + result = Line_Up( RAS_VARS x1, -y1, x2, -y2, -maxy, -miny ); + + if ( fresh && !ras.fresh ) + ras.cProfile->start = -ras.cProfile->start; + + return result; + } + + + /* A function type describing the functions used to split Bezier arcs */ + typedef void (*TSplitter)( TPoint* base ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Bezier_Up */ + /* */ + /* <Description> */ + /* Compute the x-coordinates of an ascending Bezier arc and store */ + /* them in the render pool. */ + /* */ + /* <Input> */ + /* degree :: The degree of the Bezier arc (either 2 or 3). */ + /* */ + /* splitter :: The function to split Bezier arcs. */ + /* */ + /* miny :: A lower vertical clipping bound value. */ + /* */ + /* maxy :: An upper vertical clipping bound value. */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow. */ + /* */ + static Bool + Bezier_Up( RAS_ARGS Int degree, + TSplitter splitter, + Long miny, + Long maxy ) + { + Long y1, y2, e, e2, e0; + Short f1; + + TPoint* arc; + TPoint* start_arc; + + PLong top; + + + arc = ras.arc; + y1 = arc[degree].y; + y2 = arc[0].y; + top = ras.top; + + if ( y2 < miny || y1 > maxy ) + goto Fin; + + e2 = FLOOR( y2 ); + + if ( e2 > maxy ) + e2 = maxy; + + e0 = miny; + + if ( y1 < miny ) + e = miny; + else + { + e = CEILING( y1 ); + f1 = (Short)( FRAC( y1 ) ); + e0 = e; + + if ( f1 == 0 ) + { + if ( ras.joint ) + { + top--; + ras.joint = FALSE; + } + + *top++ = arc[degree].x; + + e += ras.precision; + } + } + + if ( ras.fresh ) + { + ras.cProfile->start = TRUNC( e0 ); + ras.fresh = FALSE; + } + + if ( e2 < e ) + goto Fin; + + if ( ( top + TRUNC( e2 - e ) + 1 ) >= ras.maxBuff ) + { + ras.top = top; + ras.error = Raster_Err_Overflow; + return FAILURE; + } + + start_arc = arc; + + while ( arc >= start_arc && e <= e2 ) + { + ras.joint = FALSE; + + y2 = arc[0].y; + + if ( y2 > e ) + { + y1 = arc[degree].y; + if ( y2 - y1 >= ras.precision_step ) + { + splitter( arc ); + arc += degree; + } + else + { + *top++ = arc[degree].x + FMulDiv( arc[0].x - arc[degree].x, + e - y1, y2 - y1 ); + arc -= degree; + e += ras.precision; + } + } + else + { + if ( y2 == e ) + { + ras.joint = TRUE; + *top++ = arc[0].x; + + e += ras.precision; + } + arc -= degree; + } + } + + Fin: + ras.top = top; + ras.arc -= degree; + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Bezier_Down */ + /* */ + /* <Description> */ + /* Compute the x-coordinates of an descending Bezier arc and store */ + /* them in the render pool. */ + /* */ + /* <Input> */ + /* degree :: The degree of the Bezier arc (either 2 or 3). */ + /* */ + /* splitter :: The function to split Bezier arcs. */ + /* */ + /* miny :: A lower vertical clipping bound value. */ + /* */ + /* maxy :: An upper vertical clipping bound value. */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow. */ + /* */ + static Bool + Bezier_Down( RAS_ARGS Int degree, + TSplitter splitter, + Long miny, + Long maxy ) + { + TPoint* arc = ras.arc; + Bool result, fresh; + + + arc[0].y = -arc[0].y; + arc[1].y = -arc[1].y; + arc[2].y = -arc[2].y; + if ( degree > 2 ) + arc[3].y = -arc[3].y; + + fresh = ras.fresh; + + result = Bezier_Up( RAS_VARS degree, splitter, -maxy, -miny ); + + if ( fresh && !ras.fresh ) + ras.cProfile->start = -ras.cProfile->start; + + arc[0].y = -arc[0].y; + return result; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Line_To */ + /* */ + /* <Description> */ + /* Inject a new line segment and adjust the Profiles list. */ + /* */ + /* <Input> */ + /* x :: The x-coordinate of the segment's end point (its start point */ + /* is stored in `lastX'). */ + /* */ + /* y :: The y-coordinate of the segment's end point (its start point */ + /* is stored in `lastY'). */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow or incorrect */ + /* profile. */ + /* */ + static Bool + Line_To( RAS_ARGS Long x, + Long y ) + { + /* First, detect a change of direction */ + + switch ( ras.state ) + { + case Unknown_State: + if ( y > ras.lastY ) + { + if ( New_Profile( RAS_VARS Ascending_State, + IS_BOTTOM_OVERSHOOT( ras.lastY ) ) ) + return FAILURE; + } + else + { + if ( y < ras.lastY ) + if ( New_Profile( RAS_VARS Descending_State, + IS_TOP_OVERSHOOT( ras.lastY ) ) ) + return FAILURE; + } + break; + + case Ascending_State: + if ( y < ras.lastY ) + { + if ( End_Profile( RAS_VARS IS_TOP_OVERSHOOT( ras.lastY ) ) || + New_Profile( RAS_VARS Descending_State, + IS_TOP_OVERSHOOT( ras.lastY ) ) ) + return FAILURE; + } + break; + + case Descending_State: + if ( y > ras.lastY ) + { + if ( End_Profile( RAS_VARS IS_BOTTOM_OVERSHOOT( ras.lastY ) ) || + New_Profile( RAS_VARS Ascending_State, + IS_BOTTOM_OVERSHOOT( ras.lastY ) ) ) + return FAILURE; + } + break; + + default: + ; + } + + /* Then compute the lines */ + + switch ( ras.state ) + { + case Ascending_State: + if ( Line_Up( RAS_VARS ras.lastX, ras.lastY, + x, y, ras.minY, ras.maxY ) ) + return FAILURE; + break; + + case Descending_State: + if ( Line_Down( RAS_VARS ras.lastX, ras.lastY, + x, y, ras.minY, ras.maxY ) ) + return FAILURE; + break; + + default: + ; + } + + ras.lastX = x; + ras.lastY = y; + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Conic_To */ + /* */ + /* <Description> */ + /* Inject a new conic arc and adjust the profile list. */ + /* */ + /* <Input> */ + /* cx :: The x-coordinate of the arc's new control point. */ + /* */ + /* cy :: The y-coordinate of the arc's new control point. */ + /* */ + /* x :: The x-coordinate of the arc's end point (its start point is */ + /* stored in `lastX'). */ + /* */ + /* y :: The y-coordinate of the arc's end point (its start point is */ + /* stored in `lastY'). */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow or incorrect */ + /* profile. */ + /* */ + static Bool + Conic_To( RAS_ARGS Long cx, + Long cy, + Long x, + Long y ) + { + Long y1, y2, y3, x3, ymin, ymax; + TStates state_bez; + + + ras.arc = ras.arcs; + ras.arc[2].x = ras.lastX; + ras.arc[2].y = ras.lastY; + ras.arc[1].x = cx; + ras.arc[1].y = cy; + ras.arc[0].x = x; + ras.arc[0].y = y; + + do + { + y1 = ras.arc[2].y; + y2 = ras.arc[1].y; + y3 = ras.arc[0].y; + x3 = ras.arc[0].x; + + /* first, categorize the Bezier arc */ + + if ( y1 <= y3 ) + { + ymin = y1; + ymax = y3; + } + else + { + ymin = y3; + ymax = y1; + } + + if ( y2 < ymin || y2 > ymax ) + { + /* this arc has no given direction, split it! */ + Split_Conic( ras.arc ); + ras.arc += 2; + } + else if ( y1 == y3 ) + { + /* this arc is flat, ignore it and pop it from the Bezier stack */ + ras.arc -= 2; + } + else + { + /* the arc is y-monotonous, either ascending or descending */ + /* detect a change of direction */ + state_bez = y1 < y3 ? Ascending_State : Descending_State; + if ( ras.state != state_bez ) + { + Bool o = state_bez == Ascending_State ? IS_BOTTOM_OVERSHOOT( y1 ) + : IS_TOP_OVERSHOOT( y1 ); + + + /* finalize current profile if any */ + if ( ras.state != Unknown_State && + End_Profile( RAS_VARS o ) ) + goto Fail; + + /* create a new profile */ + if ( New_Profile( RAS_VARS state_bez, o ) ) + goto Fail; + } + + /* now call the appropriate routine */ + if ( state_bez == Ascending_State ) + { + if ( Bezier_Up( RAS_VARS 2, Split_Conic, ras.minY, ras.maxY ) ) + goto Fail; + } + else + if ( Bezier_Down( RAS_VARS 2, Split_Conic, ras.minY, ras.maxY ) ) + goto Fail; + } + + } while ( ras.arc >= ras.arcs ); + + ras.lastX = x3; + ras.lastY = y3; + + return SUCCESS; + + Fail: + return FAILURE; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Cubic_To */ + /* */ + /* <Description> */ + /* Inject a new cubic arc and adjust the profile list. */ + /* */ + /* <Input> */ + /* cx1 :: The x-coordinate of the arc's first new control point. */ + /* */ + /* cy1 :: The y-coordinate of the arc's first new control point. */ + /* */ + /* cx2 :: The x-coordinate of the arc's second new control point. */ + /* */ + /* cy2 :: The y-coordinate of the arc's second new control point. */ + /* */ + /* x :: The x-coordinate of the arc's end point (its start point is */ + /* stored in `lastX'). */ + /* */ + /* y :: The y-coordinate of the arc's end point (its start point is */ + /* stored in `lastY'). */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on render pool overflow or incorrect */ + /* profile. */ + /* */ + static Bool + Cubic_To( RAS_ARGS Long cx1, + Long cy1, + Long cx2, + Long cy2, + Long x, + Long y ) + { + Long y1, y2, y3, y4, x4, ymin1, ymax1, ymin2, ymax2; + TStates state_bez; + + + ras.arc = ras.arcs; + ras.arc[3].x = ras.lastX; + ras.arc[3].y = ras.lastY; + ras.arc[2].x = cx1; + ras.arc[2].y = cy1; + ras.arc[1].x = cx2; + ras.arc[1].y = cy2; + ras.arc[0].x = x; + ras.arc[0].y = y; + + do + { + y1 = ras.arc[3].y; + y2 = ras.arc[2].y; + y3 = ras.arc[1].y; + y4 = ras.arc[0].y; + x4 = ras.arc[0].x; + + /* first, categorize the Bezier arc */ + + if ( y1 <= y4 ) + { + ymin1 = y1; + ymax1 = y4; + } + else + { + ymin1 = y4; + ymax1 = y1; + } + + if ( y2 <= y3 ) + { + ymin2 = y2; + ymax2 = y3; + } + else + { + ymin2 = y3; + ymax2 = y2; + } + + if ( ymin2 < ymin1 || ymax2 > ymax1 ) + { + /* this arc has no given direction, split it! */ + Split_Cubic( ras.arc ); + ras.arc += 3; + } + else if ( y1 == y4 ) + { + /* this arc is flat, ignore it and pop it from the Bezier stack */ + ras.arc -= 3; + } + else + { + state_bez = ( y1 <= y4 ) ? Ascending_State : Descending_State; + + /* detect a change of direction */ + if ( ras.state != state_bez ) + { + Bool o = state_bez == Ascending_State ? IS_BOTTOM_OVERSHOOT( y1 ) + : IS_TOP_OVERSHOOT( y1 ); + + + /* finalize current profile if any */ + if ( ras.state != Unknown_State && + End_Profile( RAS_VARS o ) ) + goto Fail; + + if ( New_Profile( RAS_VARS state_bez, o ) ) + goto Fail; + } + + /* compute intersections */ + if ( state_bez == Ascending_State ) + { + if ( Bezier_Up( RAS_VARS 3, Split_Cubic, ras.minY, ras.maxY ) ) + goto Fail; + } + else + if ( Bezier_Down( RAS_VARS 3, Split_Cubic, ras.minY, ras.maxY ) ) + goto Fail; + } + + } while ( ras.arc >= ras.arcs ); + + ras.lastX = x4; + ras.lastY = y4; + + return SUCCESS; + + Fail: + return FAILURE; + } + + +#undef SWAP_ +#define SWAP_( x, y ) do \ + { \ + Long swap = x; \ + \ + \ + x = y; \ + y = swap; \ + } while ( 0 ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Decompose_Curve */ + /* */ + /* <Description> */ + /* Scan the outline arrays in order to emit individual segments and */ + /* Beziers by calling Line_To() and Bezier_To(). It handles all */ + /* weird cases, like when the first point is off the curve, or when */ + /* there are simply no `on' points in the contour! */ + /* */ + /* <Input> */ + /* first :: The index of the first point in the contour. */ + /* */ + /* last :: The index of the last point in the contour. */ + /* */ + /* flipped :: If set, flip the direction of the curve. */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE on error. */ + /* */ + static Bool + Decompose_Curve( RAS_ARGS UShort first, + UShort last, + int flipped ) + { + FT_Vector v_last; + FT_Vector v_control; + FT_Vector v_start; + + FT_Vector* points; + FT_Vector* point; + FT_Vector* limit; + char* tags; + + unsigned tag; /* current point's state */ + + + points = ras.outline.points; + limit = points + last; + + v_start.x = SCALED( points[first].x ); + v_start.y = SCALED( points[first].y ); + v_last.x = SCALED( points[last].x ); + v_last.y = SCALED( points[last].y ); + + if ( flipped ) + { + SWAP_( v_start.x, v_start.y ); + SWAP_( v_last.x, v_last.y ); + } + + v_control = v_start; + + point = points + first; + tags = ras.outline.tags + first; + + /* set scan mode if necessary */ + if ( tags[0] & FT_CURVE_TAG_HAS_SCANMODE ) + ras.dropOutControl = (Byte)tags[0] >> 5; + + tag = FT_CURVE_TAG( tags[0] ); + + /* A contour cannot start with a cubic control point! */ + if ( tag == FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + /* check first point to determine origin */ + if ( tag == FT_CURVE_TAG_CONIC ) + { + /* first point is conic control. Yes, this happens. */ + if ( FT_CURVE_TAG( ras.outline.tags[last] ) == FT_CURVE_TAG_ON ) + { + /* start at last point if it is on the curve */ + v_start = v_last; + limit--; + } + else + { + /* if both first and last points are conic, */ + /* start at their middle and record its position */ + /* for closure */ + v_start.x = ( v_start.x + v_last.x ) / 2; + v_start.y = ( v_start.y + v_last.y ) / 2; + + v_last = v_start; + } + point--; + tags--; + } + + ras.lastX = v_start.x; + ras.lastY = v_start.y; + + while ( point < limit ) + { + point++; + tags++; + + tag = FT_CURVE_TAG( tags[0] ); + + switch ( tag ) + { + case FT_CURVE_TAG_ON: /* emit a single line_to */ + { + Long x, y; + + + x = SCALED( point->x ); + y = SCALED( point->y ); + if ( flipped ) + SWAP_( x, y ); + + if ( Line_To( RAS_VARS x, y ) ) + goto Fail; + continue; + } + + case FT_CURVE_TAG_CONIC: /* consume conic arcs */ + v_control.x = SCALED( point[0].x ); + v_control.y = SCALED( point[0].y ); + + if ( flipped ) + SWAP_( v_control.x, v_control.y ); + + Do_Conic: + if ( point < limit ) + { + FT_Vector v_middle; + Long x, y; + + + point++; + tags++; + tag = FT_CURVE_TAG( tags[0] ); + + x = SCALED( point[0].x ); + y = SCALED( point[0].y ); + + if ( flipped ) + SWAP_( x, y ); + + if ( tag == FT_CURVE_TAG_ON ) + { + if ( Conic_To( RAS_VARS v_control.x, v_control.y, x, y ) ) + goto Fail; + continue; + } + + if ( tag != FT_CURVE_TAG_CONIC ) + goto Invalid_Outline; + + v_middle.x = ( v_control.x + x ) / 2; + v_middle.y = ( v_control.y + y ) / 2; + + if ( Conic_To( RAS_VARS v_control.x, v_control.y, + v_middle.x, v_middle.y ) ) + goto Fail; + + v_control.x = x; + v_control.y = y; + + goto Do_Conic; + } + + if ( Conic_To( RAS_VARS v_control.x, v_control.y, + v_start.x, v_start.y ) ) + goto Fail; + + goto Close; + + default: /* FT_CURVE_TAG_CUBIC */ + { + Long x1, y1, x2, y2, x3, y3; + + + if ( point + 1 > limit || + FT_CURVE_TAG( tags[1] ) != FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + point += 2; + tags += 2; + + x1 = SCALED( point[-2].x ); + y1 = SCALED( point[-2].y ); + x2 = SCALED( point[-1].x ); + y2 = SCALED( point[-1].y ); + + if ( flipped ) + { + SWAP_( x1, y1 ); + SWAP_( x2, y2 ); + } + + if ( point <= limit ) + { + x3 = SCALED( point[0].x ); + y3 = SCALED( point[0].y ); + + if ( flipped ) + SWAP_( x3, y3 ); + + if ( Cubic_To( RAS_VARS x1, y1, x2, y2, x3, y3 ) ) + goto Fail; + continue; + } + + if ( Cubic_To( RAS_VARS x1, y1, x2, y2, v_start.x, v_start.y ) ) + goto Fail; + goto Close; + } + } + } + + /* close the contour with a line segment */ + if ( Line_To( RAS_VARS v_start.x, v_start.y ) ) + goto Fail; + + Close: + return SUCCESS; + + Invalid_Outline: + ras.error = Raster_Err_Invalid; + + Fail: + return FAILURE; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Convert_Glyph */ + /* */ + /* <Description> */ + /* Convert a glyph into a series of segments and arcs and make a */ + /* profiles list with them. */ + /* */ + /* <Input> */ + /* flipped :: If set, flip the direction of curve. */ + /* */ + /* <Return> */ + /* SUCCESS on success, FAILURE if any error was encountered during */ + /* rendering. */ + /* */ + static Bool + Convert_Glyph( RAS_ARGS int flipped ) + { + int i; + unsigned start; + + PProfile lastProfile; + + + ras.fProfile = NULL; + ras.joint = FALSE; + ras.fresh = FALSE; + + ras.maxBuff = ras.sizeBuff - AlignProfileSize; + + ras.numTurns = 0; + + ras.cProfile = (PProfile)ras.top; + ras.cProfile->offset = ras.top; + ras.num_Profs = 0; + + start = 0; + + for ( i = 0; i < ras.outline.n_contours; i++ ) + { + Bool o; + + + ras.state = Unknown_State; + ras.gProfile = NULL; + + if ( Decompose_Curve( RAS_VARS (unsigned short)start, + ras.outline.contours[i], + flipped ) ) + return FAILURE; + + start = ras.outline.contours[i] + 1; + + /* we must now check whether the extreme arcs join or not */ + if ( FRAC( ras.lastY ) == 0 && + ras.lastY >= ras.minY && + ras.lastY <= ras.maxY ) + if ( ras.gProfile && + ( ras.gProfile->flags & Flow_Up ) == + ( ras.cProfile->flags & Flow_Up ) ) + ras.top--; + /* Note that ras.gProfile can be nil if the contour was too small */ + /* to be drawn. */ + + lastProfile = ras.cProfile; + if ( ras.cProfile->flags & Flow_Up ) + o = IS_TOP_OVERSHOOT( ras.lastY ); + else + o = IS_BOTTOM_OVERSHOOT( ras.lastY ); + if ( End_Profile( RAS_VARS o ) ) + return FAILURE; + + /* close the `next profile in contour' linked list */ + if ( ras.gProfile ) + lastProfile->next = ras.gProfile; + } + + if ( Finalize_Profile_Table( RAS_VAR ) ) + return FAILURE; + + return (Bool)( ras.top < ras.maxBuff ? SUCCESS : FAILURE ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /** **/ + /** SCAN-LINE SWEEPS AND DRAWING **/ + /** **/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Init_Linked */ + /* */ + /* Initializes an empty linked list. */ + /* */ + static void + Init_Linked( TProfileList* l ) + { + *l = NULL; + } + + + /*************************************************************************/ + /* */ + /* InsNew */ + /* */ + /* Inserts a new profile in a linked list. */ + /* */ + static void + InsNew( PProfileList list, + PProfile profile ) + { + PProfile *old, current; + Long x; + + + old = list; + current = *old; + x = profile->X; + + while ( current ) + { + if ( x < current->X ) + break; + old = ¤t->link; + current = *old; + } + + profile->link = current; + *old = profile; + } + + + /*************************************************************************/ + /* */ + /* DelOld */ + /* */ + /* Removes an old profile from a linked list. */ + /* */ + static void + DelOld( PProfileList list, + PProfile profile ) + { + PProfile *old, current; + + + old = list; + current = *old; + + while ( current ) + { + if ( current == profile ) + { + *old = current->link; + return; + } + + old = ¤t->link; + current = *old; + } + + /* we should never get there, unless the profile was not part of */ + /* the list. */ + } + + + /*************************************************************************/ + /* */ + /* Sort */ + /* */ + /* Sorts a trace list. In 95%, the list is already sorted. We need */ + /* an algorithm which is fast in this case. Bubble sort is enough */ + /* and simple. */ + /* */ + static void + Sort( PProfileList list ) + { + PProfile *old, current, next; + + + /* First, set the new X coordinate of each profile */ + current = *list; + while ( current ) + { + current->X = *current->offset; + current->offset += current->flags & Flow_Up ? 1 : -1; + current->height--; + current = current->link; + } + + /* Then sort them */ + old = list; + current = *old; + + if ( !current ) + return; + + next = current->link; + + while ( next ) + { + if ( current->X <= next->X ) + { + old = ¤t->link; + current = *old; + + if ( !current ) + return; + } + else + { + *old = next; + current->link = next->link; + next->link = current; + + old = list; + current = *old; + } + + next = current->link; + } + } + + + /*************************************************************************/ + /* */ + /* Vertical Sweep Procedure Set */ + /* */ + /* These four routines are used during the vertical black/white sweep */ + /* phase by the generic Draw_Sweep() function. */ + /* */ + /*************************************************************************/ + + static void + Vertical_Sweep_Init( RAS_ARGS Short* min, + Short* max ) + { + Long pitch = ras.target.pitch; + + FT_UNUSED( max ); + + + ras.traceIncr = (Short)-pitch; + ras.traceOfs = -*min * pitch; + if ( pitch > 0 ) + ras.traceOfs += ( ras.target.rows - 1 ) * pitch; + + ras.gray_min_x = 0; + ras.gray_max_x = 0; + } + + + static void + Vertical_Sweep_Span( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ) + { + Long e1, e2; + int c1, c2; + Byte f1, f2; + Byte* target; + + FT_UNUSED( y ); + FT_UNUSED( left ); + FT_UNUSED( right ); + + + /* Drop-out control */ + + e1 = TRUNC( CEILING( x1 ) ); + + if ( x2 - x1 - ras.precision <= ras.precision_jitter ) + e2 = e1; + else + e2 = TRUNC( FLOOR( x2 ) ); + + if ( e2 >= 0 && e1 < ras.bWidth ) + { + if ( e1 < 0 ) + e1 = 0; + if ( e2 >= ras.bWidth ) + e2 = ras.bWidth - 1; + + c1 = (Short)( e1 >> 3 ); + c2 = (Short)( e2 >> 3 ); + + f1 = (Byte) ( 0xFF >> ( e1 & 7 ) ); + f2 = (Byte) ~( 0x7F >> ( e2 & 7 ) ); + + if ( ras.gray_min_x > c1 ) + ras.gray_min_x = (short)c1; + if ( ras.gray_max_x < c2 ) + ras.gray_max_x = (short)c2; + + target = ras.bTarget + ras.traceOfs + c1; + c2 -= c1; + + if ( c2 > 0 ) + { + target[0] |= f1; + + /* memset() is slower than the following code on many platforms. */ + /* This is due to the fact that, in the vast majority of cases, */ + /* the span length in bytes is relatively small. */ + c2--; + while ( c2 > 0 ) + { + *(++target) = 0xFF; + c2--; + } + target[1] |= f2; + } + else + *target |= ( f1 & f2 ); + } + } + + + static void + Vertical_Sweep_Drop( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ) + { + Long e1, e2, pxl; + Short c1, f1; + + + /* Drop-out control */ + + /* e2 x2 x1 e1 */ + /* */ + /* ^ | */ + /* | | */ + /* +-------------+---------------------+------------+ */ + /* | | */ + /* | v */ + /* */ + /* pixel contour contour pixel */ + /* center center */ + + /* drop-out mode scan conversion rules (as defined in OpenType) */ + /* --------------------------------------------------------------- */ + /* 0 1, 2, 3 */ + /* 1 1, 2, 4 */ + /* 2 1, 2 */ + /* 3 same as mode 2 */ + /* 4 1, 2, 5 */ + /* 5 1, 2, 6 */ + /* 6, 7 same as mode 2 */ + + e1 = CEILING( x1 ); + e2 = FLOOR ( x2 ); + pxl = e1; + + if ( e1 > e2 ) + { + Int dropOutControl = left->flags & 7; + + + if ( e1 == e2 + ras.precision ) + { + switch ( dropOutControl ) + { + case 0: /* simple drop-outs including stubs */ + pxl = e2; + break; + + case 4: /* smart drop-outs including stubs */ + pxl = FLOOR( ( x1 + x2 - 1 ) / 2 + ras.precision_half ); + break; + + case 1: /* simple drop-outs excluding stubs */ + case 5: /* smart drop-outs excluding stubs */ + + /* Drop-out Control Rules #4 and #6 */ + + /* The specification neither provides an exact definition */ + /* of a `stub' nor gives exact rules to exclude them. */ + /* */ + /* Here the constraints we use to recognize a stub. */ + /* */ + /* upper stub: */ + /* */ + /* - P_Left and P_Right are in the same contour */ + /* - P_Right is the successor of P_Left in that contour */ + /* - y is the top of P_Left and P_Right */ + /* */ + /* lower stub: */ + /* */ + /* - P_Left and P_Right are in the same contour */ + /* - P_Left is the successor of P_Right in that contour */ + /* - y is the bottom of P_Left */ + /* */ + /* We draw a stub if the following constraints are met. */ + /* */ + /* - for an upper or lower stub, there is top or bottom */ + /* overshoot, respectively */ + /* - the covered interval is greater or equal to a half */ + /* pixel */ + + /* upper stub test */ + if ( left->next == right && + left->height <= 0 && + !( left->flags & Overshoot_Top && + x2 - x1 >= ras.precision_half ) ) + return; + + /* lower stub test */ + if ( right->next == left && + left->start == y && + !( left->flags & Overshoot_Bottom && + x2 - x1 >= ras.precision_half ) ) + return; + + if ( dropOutControl == 1 ) + pxl = e2; + else + pxl = FLOOR( ( x1 + x2 - 1 ) / 2 + ras.precision_half ); + break; + + default: /* modes 2, 3, 6, 7 */ + return; /* no drop-out control */ + } + + /* undocumented but confirmed: If the drop-out would result in a */ + /* pixel outside of the bounding box, use the pixel inside of the */ + /* bounding box instead */ + if ( pxl < 0 ) + pxl = e1; + else if ( TRUNC( pxl ) >= ras.bWidth ) + pxl = e2; + + /* check that the other pixel isn't set */ + e1 = pxl == e1 ? e2 : e1; + + e1 = TRUNC( e1 ); + + c1 = (Short)( e1 >> 3 ); + f1 = (Short)( e1 & 7 ); + + if ( e1 >= 0 && e1 < ras.bWidth && + ras.bTarget[ras.traceOfs + c1] & ( 0x80 >> f1 ) ) + return; + } + else + return; + } + + e1 = TRUNC( pxl ); + + if ( e1 >= 0 && e1 < ras.bWidth ) + { + c1 = (Short)( e1 >> 3 ); + f1 = (Short)( e1 & 7 ); + + if ( ras.gray_min_x > c1 ) + ras.gray_min_x = c1; + if ( ras.gray_max_x < c1 ) + ras.gray_max_x = c1; + + ras.bTarget[ras.traceOfs + c1] |= (char)( 0x80 >> f1 ); + } + } + + + static void + Vertical_Sweep_Step( RAS_ARG ) + { + ras.traceOfs += ras.traceIncr; + } + + + /***********************************************************************/ + /* */ + /* Horizontal Sweep Procedure Set */ + /* */ + /* These four routines are used during the horizontal black/white */ + /* sweep phase by the generic Draw_Sweep() function. */ + /* */ + /***********************************************************************/ + + static void + Horizontal_Sweep_Init( RAS_ARGS Short* min, + Short* max ) + { + /* nothing, really */ + FT_UNUSED_RASTER; + FT_UNUSED( min ); + FT_UNUSED( max ); + } + + + static void + Horizontal_Sweep_Span( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ) + { + Long e1, e2; + PByte bits; + Byte f1; + + FT_UNUSED( left ); + FT_UNUSED( right ); + + + if ( x2 - x1 < ras.precision ) + { + e1 = CEILING( x1 ); + e2 = FLOOR ( x2 ); + + if ( e1 == e2 ) + { + bits = ras.bTarget + ( y >> 3 ); + f1 = (Byte)( 0x80 >> ( y & 7 ) ); + + e1 = TRUNC( e1 ); + + if ( e1 >= 0 && e1 < ras.target.rows ) + { + PByte p; + + + p = bits - e1 * ras.target.pitch; + if ( ras.target.pitch > 0 ) + p += ( ras.target.rows - 1 ) * ras.target.pitch; + + p[0] |= f1; + } + } + } + } + + + static void + Horizontal_Sweep_Drop( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ) + { + Long e1, e2, pxl; + PByte bits; + Byte f1; + + + /* During the horizontal sweep, we only take care of drop-outs */ + + /* e1 + <-- pixel center */ + /* | */ + /* x1 ---+--> <-- contour */ + /* | */ + /* | */ + /* x2 <--+--- <-- contour */ + /* | */ + /* | */ + /* e2 + <-- pixel center */ + + e1 = CEILING( x1 ); + e2 = FLOOR ( x2 ); + pxl = e1; + + if ( e1 > e2 ) + { + Int dropOutControl = left->flags & 7; + + + if ( e1 == e2 + ras.precision ) + { + switch ( dropOutControl ) + { + case 0: /* simple drop-outs including stubs */ + pxl = e2; + break; + + case 4: /* smart drop-outs including stubs */ + pxl = FLOOR( ( x1 + x2 - 1 ) / 2 + ras.precision_half ); + break; + + case 1: /* simple drop-outs excluding stubs */ + case 5: /* smart drop-outs excluding stubs */ + /* see Vertical_Sweep_Drop for details */ + + /* rightmost stub test */ + if ( left->next == right && + left->height <= 0 && + !( left->flags & Overshoot_Top && + x2 - x1 >= ras.precision_half ) ) + return; + + /* leftmost stub test */ + if ( right->next == left && + left->start == y && + !( left->flags & Overshoot_Bottom && + x2 - x1 >= ras.precision_half ) ) + return; + + if ( dropOutControl == 1 ) + pxl = e2; + else + pxl = FLOOR( ( x1 + x2 - 1 ) / 2 + ras.precision_half ); + break; + + default: /* modes 2, 3, 6, 7 */ + return; /* no drop-out control */ + } + + /* undocumented but confirmed: If the drop-out would result in a */ + /* pixel outside of the bounding box, use the pixel inside of the */ + /* bounding box instead */ + if ( pxl < 0 ) + pxl = e1; + else if ( TRUNC( pxl ) >= ras.target.rows ) + pxl = e2; + + /* check that the other pixel isn't set */ + e1 = pxl == e1 ? e2 : e1; + + e1 = TRUNC( e1 ); + + bits = ras.bTarget + ( y >> 3 ); + f1 = (Byte)( 0x80 >> ( y & 7 ) ); + + bits -= e1 * ras.target.pitch; + if ( ras.target.pitch > 0 ) + bits += ( ras.target.rows - 1 ) * ras.target.pitch; + + if ( e1 >= 0 && + e1 < ras.target.rows && + *bits & f1 ) + return; + } + else + return; + } + + bits = ras.bTarget + ( y >> 3 ); + f1 = (Byte)( 0x80 >> ( y & 7 ) ); + + e1 = TRUNC( pxl ); + + if ( e1 >= 0 && e1 < ras.target.rows ) + { + bits -= e1 * ras.target.pitch; + if ( ras.target.pitch > 0 ) + bits += ( ras.target.rows - 1 ) * ras.target.pitch; + + bits[0] |= f1; + } + } + + + static void + Horizontal_Sweep_Step( RAS_ARG ) + { + /* Nothing, really */ + FT_UNUSED_RASTER; + } + + +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + + + /*************************************************************************/ + /* */ + /* Vertical Gray Sweep Procedure Set */ + /* */ + /* These two routines are used during the vertical gray-levels sweep */ + /* phase by the generic Draw_Sweep() function. */ + /* */ + /* NOTES */ + /* */ + /* - The target pixmap's width *must* be a multiple of 4. */ + /* */ + /* - You have to use the function Vertical_Sweep_Span() for the gray */ + /* span call. */ + /* */ + /*************************************************************************/ + + static void + Vertical_Gray_Sweep_Init( RAS_ARGS Short* min, + Short* max ) + { + Long pitch, byte_len; + + + *min = *min & -2; + *max = ( *max + 3 ) & -2; + + ras.traceOfs = 0; + pitch = ras.target.pitch; + byte_len = -pitch; + ras.traceIncr = (Short)byte_len; + ras.traceG = ( *min / 2 ) * byte_len; + + if ( pitch > 0 ) + { + ras.traceG += ( ras.target.rows - 1 ) * pitch; + byte_len = -byte_len; + } + + ras.gray_min_x = (Short)byte_len; + ras.gray_max_x = -(Short)byte_len; + } + + + static void + Vertical_Gray_Sweep_Step( RAS_ARG ) + { + Int c1, c2; + PByte pix, bit, bit2; + short* count = (short*)count_table; + Byte* grays; + + + ras.traceOfs += ras.gray_width; + + if ( ras.traceOfs > ras.gray_width ) + { + pix = ras.gTarget + ras.traceG + ras.gray_min_x * 4; + grays = ras.grays; + + if ( ras.gray_max_x >= 0 ) + { + Long last_pixel = ras.target.width - 1; + Int last_cell = last_pixel >> 2; + Int last_bit = last_pixel & 3; + Bool over = 0; + + + if ( ras.gray_max_x >= last_cell && last_bit != 3 ) + { + ras.gray_max_x = last_cell - 1; + over = 1; + } + + if ( ras.gray_min_x < 0 ) + ras.gray_min_x = 0; + + bit = ras.bTarget + ras.gray_min_x; + bit2 = bit + ras.gray_width; + + c1 = ras.gray_max_x - ras.gray_min_x; + + while ( c1 >= 0 ) + { + c2 = count[*bit] + count[*bit2]; + + if ( c2 ) + { + pix[0] = grays[(c2 >> 12) & 0x000F]; + pix[1] = grays[(c2 >> 8 ) & 0x000F]; + pix[2] = grays[(c2 >> 4 ) & 0x000F]; + pix[3] = grays[ c2 & 0x000F]; + + *bit = 0; + *bit2 = 0; + } + + bit++; + bit2++; + pix += 4; + c1--; + } + + if ( over ) + { + c2 = count[*bit] + count[*bit2]; + if ( c2 ) + { + switch ( last_bit ) + { + case 2: + pix[2] = grays[(c2 >> 4 ) & 0x000F]; + case 1: + pix[1] = grays[(c2 >> 8 ) & 0x000F]; + default: + pix[0] = grays[(c2 >> 12) & 0x000F]; + } + + *bit = 0; + *bit2 = 0; + } + } + } + + ras.traceOfs = 0; + ras.traceG += ras.traceIncr; + + ras.gray_min_x = 32000; + ras.gray_max_x = -32000; + } + } + + + static void + Horizontal_Gray_Sweep_Span( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ) + { + /* nothing, really */ + FT_UNUSED_RASTER; + FT_UNUSED( y ); + FT_UNUSED( x1 ); + FT_UNUSED( x2 ); + FT_UNUSED( left ); + FT_UNUSED( right ); + } + + + static void + Horizontal_Gray_Sweep_Drop( RAS_ARGS Short y, + FT_F26Dot6 x1, + FT_F26Dot6 x2, + PProfile left, + PProfile right ) + { + Long e1, e2; + PByte pixel; + Byte color; + + + /* During the horizontal sweep, we only take care of drop-outs */ + + e1 = CEILING( x1 ); + e2 = FLOOR ( x2 ); + + if ( e1 > e2 ) + { + Int dropOutControl = left->flags & 7; + + + if ( e1 == e2 + ras.precision ) + { + switch ( dropOutControl ) + { + case 0: /* simple drop-outs including stubs */ + e1 = e2; + break; + + case 4: /* smart drop-outs including stubs */ + e1 = FLOOR( ( x1 + x2 - 1 ) / 2 + ras.precision_half ); + break; + + case 1: /* simple drop-outs excluding stubs */ + case 5: /* smart drop-outs excluding stubs */ + /* see Vertical_Sweep_Drop for details */ + + /* rightmost stub test */ + if ( left->next == right && left->height <= 0 ) + return; + + /* leftmost stub test */ + if ( right->next == left && left->start == y ) + return; + + if ( dropOutControl == 1 ) + e1 = e2; + else + e1 = FLOOR( ( x1 + x2 - 1 ) / 2 + ras.precision_half ); + + break; + + default: /* modes 2, 3, 6, 7 */ + return; /* no drop-out control */ + } + } + else + return; + } + + if ( e1 >= 0 ) + { + if ( x2 - x1 >= ras.precision_half ) + color = ras.grays[2]; + else + color = ras.grays[1]; + + e1 = TRUNC( e1 ) / 2; + if ( e1 < ras.target.rows ) + { + pixel = ras.gTarget - e1 * ras.target.pitch + y / 2; + if ( ras.target.pitch > 0 ) + pixel += ( ras.target.rows - 1 ) * ras.target.pitch; + + if ( pixel[0] == ras.grays[0] ) + pixel[0] = color; + } + } + } + + +#endif /* FT_RASTER_OPTION_ANTI_ALIASING */ + + + /*************************************************************************/ + /* */ + /* Generic Sweep Drawing routine */ + /* */ + /*************************************************************************/ + + static Bool + Draw_Sweep( RAS_ARG ) + { + Short y, y_change, y_height; + + PProfile P, Q, P_Left, P_Right; + + Short min_Y, max_Y, top, bottom, dropouts; + + Long x1, x2, xs, e1, e2; + + TProfileList waiting; + TProfileList draw_left, draw_right; + + + /* initialize empty linked lists */ + + Init_Linked( &waiting ); + + Init_Linked( &draw_left ); + Init_Linked( &draw_right ); + + /* first, compute min and max Y */ + + P = ras.fProfile; + max_Y = (Short)TRUNC( ras.minY ); + min_Y = (Short)TRUNC( ras.maxY ); + + while ( P ) + { + Q = P->link; + + bottom = (Short)P->start; + top = (Short)( P->start + P->height - 1 ); + + if ( min_Y > bottom ) + min_Y = bottom; + if ( max_Y < top ) + max_Y = top; + + P->X = 0; + InsNew( &waiting, P ); + + P = Q; + } + + /* check the Y-turns */ + if ( ras.numTurns == 0 ) + { + ras.error = Raster_Err_Invalid; + return FAILURE; + } + + /* now initialize the sweep */ + + ras.Proc_Sweep_Init( RAS_VARS &min_Y, &max_Y ); + + /* then compute the distance of each profile from min_Y */ + + P = waiting; + + while ( P ) + { + P->countL = (UShort)( P->start - min_Y ); + P = P->link; + } + + /* let's go */ + + y = min_Y; + y_height = 0; + + if ( ras.numTurns > 0 && + ras.sizeBuff[-ras.numTurns] == min_Y ) + ras.numTurns--; + + while ( ras.numTurns > 0 ) + { + /* check waiting list for new activations */ + + P = waiting; + + while ( P ) + { + Q = P->link; + P->countL -= y_height; + if ( P->countL == 0 ) + { + DelOld( &waiting, P ); + + if ( P->flags & Flow_Up ) + InsNew( &draw_left, P ); + else + InsNew( &draw_right, P ); + } + + P = Q; + } + + /* sort the drawing lists */ + + Sort( &draw_left ); + Sort( &draw_right ); + + y_change = (Short)ras.sizeBuff[-ras.numTurns--]; + y_height = (Short)( y_change - y ); + + while ( y < y_change ) + { + /* let's trace */ + + dropouts = 0; + + P_Left = draw_left; + P_Right = draw_right; + + while ( P_Left ) + { + x1 = P_Left ->X; + x2 = P_Right->X; + + if ( x1 > x2 ) + { + xs = x1; + x1 = x2; + x2 = xs; + } + + e1 = FLOOR( x1 ); + e2 = CEILING( x2 ); + + if ( x2 - x1 <= ras.precision && + e1 != x1 && e2 != x2 ) + { + if ( e1 > e2 || e2 == e1 + ras.precision ) + { + Int dropOutControl = P_Left->flags & 7; + + + if ( dropOutControl != 2 ) + { + /* a drop-out was detected */ + + P_Left ->X = x1; + P_Right->X = x2; + + /* mark profile for drop-out processing */ + P_Left->countL = 1; + dropouts++; + } + + goto Skip_To_Next; + } + } + + ras.Proc_Sweep_Span( RAS_VARS y, x1, x2, P_Left, P_Right ); + + Skip_To_Next: + + P_Left = P_Left->link; + P_Right = P_Right->link; + } + + /* handle drop-outs _after_ the span drawing -- */ + /* drop-out processing has been moved out of the loop */ + /* for performance tuning */ + if ( dropouts > 0 ) + goto Scan_DropOuts; + + Next_Line: + + ras.Proc_Sweep_Step( RAS_VAR ); + + y++; + + if ( y < y_change ) + { + Sort( &draw_left ); + Sort( &draw_right ); + } + } + + /* now finalize the profiles that need it */ + + P = draw_left; + while ( P ) + { + Q = P->link; + if ( P->height == 0 ) + DelOld( &draw_left, P ); + P = Q; + } + + P = draw_right; + while ( P ) + { + Q = P->link; + if ( P->height == 0 ) + DelOld( &draw_right, P ); + P = Q; + } + } + + /* for gray-scaling, flush the bitmap scanline cache */ + while ( y <= max_Y ) + { + ras.Proc_Sweep_Step( RAS_VAR ); + y++; + } + + return SUCCESS; + + Scan_DropOuts: + + P_Left = draw_left; + P_Right = draw_right; + + while ( P_Left ) + { + if ( P_Left->countL ) + { + P_Left->countL = 0; +#if 0 + dropouts--; /* -- this is useful when debugging only */ +#endif + ras.Proc_Sweep_Drop( RAS_VARS y, + P_Left->X, + P_Right->X, + P_Left, + P_Right ); + } + + P_Left = P_Left->link; + P_Right = P_Right->link; + } + + goto Next_Line; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Render_Single_Pass */ + /* */ + /* <Description> */ + /* Perform one sweep with sub-banding. */ + /* */ + /* <Input> */ + /* flipped :: If set, flip the direction of the outline. */ + /* */ + /* <Return> */ + /* Renderer error code. */ + /* */ + static int + Render_Single_Pass( RAS_ARGS Bool flipped ) + { + Short i, j, k; + + + while ( ras.band_top >= 0 ) + { + ras.maxY = (Long)ras.band_stack[ras.band_top].y_max * ras.precision; + ras.minY = (Long)ras.band_stack[ras.band_top].y_min * ras.precision; + + ras.top = ras.buff; + + ras.error = Raster_Err_None; + + if ( Convert_Glyph( RAS_VARS flipped ) ) + { + if ( ras.error != Raster_Err_Overflow ) + return FAILURE; + + ras.error = Raster_Err_None; + + /* sub-banding */ + +#ifdef DEBUG_RASTER + ClearBand( RAS_VARS TRUNC( ras.minY ), TRUNC( ras.maxY ) ); +#endif + + i = ras.band_stack[ras.band_top].y_min; + j = ras.band_stack[ras.band_top].y_max; + + k = (Short)( ( i + j ) / 2 ); + + if ( ras.band_top >= 7 || k < i ) + { + ras.band_top = 0; + ras.error = Raster_Err_Invalid; + + return ras.error; + } + + ras.band_stack[ras.band_top + 1].y_min = k; + ras.band_stack[ras.band_top + 1].y_max = j; + + ras.band_stack[ras.band_top].y_max = (Short)( k - 1 ); + + ras.band_top++; + } + else + { + if ( ras.fProfile ) + if ( Draw_Sweep( RAS_VAR ) ) + return ras.error; + ras.band_top--; + } + } + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Render_Glyph */ + /* */ + /* <Description> */ + /* Render a glyph in a bitmap. Sub-banding if needed. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + Render_Glyph( RAS_ARG ) + { + FT_Error error; + + + Set_High_Precision( RAS_VARS ras.outline.flags & + FT_OUTLINE_HIGH_PRECISION ); + ras.scale_shift = ras.precision_shift; + + if ( ras.outline.flags & FT_OUTLINE_IGNORE_DROPOUTS ) + ras.dropOutControl = 2; + else + { + if ( ras.outline.flags & FT_OUTLINE_SMART_DROPOUTS ) + ras.dropOutControl = 4; + else + ras.dropOutControl = 0; + + if ( !( ras.outline.flags & FT_OUTLINE_INCLUDE_STUBS ) ) + ras.dropOutControl += 1; + } + + ras.second_pass = (FT_Byte)( !( ras.outline.flags & + FT_OUTLINE_SINGLE_PASS ) ); + + /* Vertical Sweep */ + ras.Proc_Sweep_Init = Vertical_Sweep_Init; + ras.Proc_Sweep_Span = Vertical_Sweep_Span; + ras.Proc_Sweep_Drop = Vertical_Sweep_Drop; + ras.Proc_Sweep_Step = Vertical_Sweep_Step; + + ras.band_top = 0; + ras.band_stack[0].y_min = 0; + ras.band_stack[0].y_max = (short)( ras.target.rows - 1 ); + + ras.bWidth = (unsigned short)ras.target.width; + ras.bTarget = (Byte*)ras.target.buffer; + + if ( ( error = Render_Single_Pass( RAS_VARS 0 ) ) != 0 ) + return error; + + /* Horizontal Sweep */ + if ( ras.second_pass && ras.dropOutControl != 2 ) + { + ras.Proc_Sweep_Init = Horizontal_Sweep_Init; + ras.Proc_Sweep_Span = Horizontal_Sweep_Span; + ras.Proc_Sweep_Drop = Horizontal_Sweep_Drop; + ras.Proc_Sweep_Step = Horizontal_Sweep_Step; + + ras.band_top = 0; + ras.band_stack[0].y_min = 0; + ras.band_stack[0].y_max = (short)( ras.target.width - 1 ); + + if ( ( error = Render_Single_Pass( RAS_VARS 1 ) ) != 0 ) + return error; + } + + return Raster_Err_None; + } + + +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Render_Gray_Glyph */ + /* */ + /* <Description> */ + /* Render a glyph with grayscaling. Sub-banding if needed. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + Render_Gray_Glyph( RAS_ARG ) + { + Long pixel_width; + FT_Error error; + + + Set_High_Precision( RAS_VARS ras.outline.flags & + FT_OUTLINE_HIGH_PRECISION ); + ras.scale_shift = ras.precision_shift + 1; + + if ( ras.outline.flags & FT_OUTLINE_IGNORE_DROPOUTS ) + ras.dropOutControl = 2; + else + { + if ( ras.outline.flags & FT_OUTLINE_SMART_DROPOUTS ) + ras.dropOutControl = 4; + else + ras.dropOutControl = 0; + + if ( !( ras.outline.flags & FT_OUTLINE_INCLUDE_STUBS ) ) + ras.dropOutControl += 1; + } + + ras.second_pass = !( ras.outline.flags & FT_OUTLINE_SINGLE_PASS ); + + /* Vertical Sweep */ + + ras.band_top = 0; + ras.band_stack[0].y_min = 0; + ras.band_stack[0].y_max = 2 * ras.target.rows - 1; + + ras.bWidth = ras.gray_width; + pixel_width = 2 * ( ( ras.target.width + 3 ) >> 2 ); + + if ( ras.bWidth > pixel_width ) + ras.bWidth = pixel_width; + + ras.bWidth = ras.bWidth * 8; + ras.bTarget = (Byte*)ras.gray_lines; + ras.gTarget = (Byte*)ras.target.buffer; + + ras.Proc_Sweep_Init = Vertical_Gray_Sweep_Init; + ras.Proc_Sweep_Span = Vertical_Sweep_Span; + ras.Proc_Sweep_Drop = Vertical_Sweep_Drop; + ras.Proc_Sweep_Step = Vertical_Gray_Sweep_Step; + + error = Render_Single_Pass( RAS_VARS 0 ); + if ( error ) + return error; + + /* Horizontal Sweep */ + if ( ras.second_pass && ras.dropOutControl != 2 ) + { + ras.Proc_Sweep_Init = Horizontal_Sweep_Init; + ras.Proc_Sweep_Span = Horizontal_Gray_Sweep_Span; + ras.Proc_Sweep_Drop = Horizontal_Gray_Sweep_Drop; + ras.Proc_Sweep_Step = Horizontal_Sweep_Step; + + ras.band_top = 0; + ras.band_stack[0].y_min = 0; + ras.band_stack[0].y_max = ras.target.width * 2 - 1; + + error = Render_Single_Pass( RAS_VARS 1 ); + if ( error ) + return error; + } + + return Raster_Err_None; + } + +#else /* !FT_RASTER_OPTION_ANTI_ALIASING */ + + FT_LOCAL_DEF( FT_Error ) + Render_Gray_Glyph( RAS_ARG ) + { + FT_UNUSED_RASTER; + + return Raster_Err_Unsupported; + } + +#endif /* !FT_RASTER_OPTION_ANTI_ALIASING */ + + + static void + ft_black_init( black_PRaster raster ) + { +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + FT_UInt n; + + + /* set default 5-levels gray palette */ + for ( n = 0; n < 5; n++ ) + raster->grays[n] = n * 255 / 4; + + raster->gray_width = RASTER_GRAY_LINES / 2; +#else + FT_UNUSED( raster ); +#endif + } + + + /**** RASTER OBJECT CREATION: In standalone mode, we simply use *****/ + /**** a static object. *****/ + + +#ifdef _STANDALONE_ + + + static int + ft_black_new( void* memory, + FT_Raster *araster ) + { + static black_TRaster the_raster; + FT_UNUSED( memory ); + + + *araster = (FT_Raster)&the_raster; + FT_MEM_ZERO( &the_raster, sizeof ( the_raster ) ); + ft_black_init( &the_raster ); + + return 0; + } + + + static void + ft_black_done( FT_Raster raster ) + { + /* nothing */ + FT_UNUSED( raster ); + } + + +#else /* !_STANDALONE_ */ + + + static int + ft_black_new( FT_Memory memory, + black_PRaster *araster ) + { + FT_Error error; + black_PRaster raster = NULL; + + + *araster = 0; + if ( !FT_NEW( raster ) ) + { + raster->memory = memory; + ft_black_init( raster ); + + *araster = raster; + } + + return error; + } + + + static void + ft_black_done( black_PRaster raster ) + { + FT_Memory memory = (FT_Memory)raster->memory; + + + FT_FREE( raster ); + } + + +#endif /* !_STANDALONE_ */ + + + static void + ft_black_reset( black_PRaster raster, + char* pool_base, + long pool_size ) + { + if ( raster ) + { + if ( pool_base && pool_size >= (long)sizeof ( black_TWorker ) + 2048 ) + { + black_PWorker worker = (black_PWorker)pool_base; + + + raster->buffer = pool_base + ( ( sizeof ( *worker ) + 7 ) & ~7 ); + raster->buffer_size = pool_base + pool_size - (char*)raster->buffer; + raster->worker = worker; + } + else + { + raster->buffer = NULL; + raster->buffer_size = 0; + raster->worker = NULL; + } + } + } + + + static void + ft_black_set_mode( black_PRaster raster, + unsigned long mode, + const char* palette ) + { +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + + if ( mode == FT_MAKE_TAG( 'p', 'a', 'l', '5' ) ) + { + /* set 5-levels gray palette */ + raster->grays[0] = palette[0]; + raster->grays[1] = palette[1]; + raster->grays[2] = palette[2]; + raster->grays[3] = palette[3]; + raster->grays[4] = palette[4]; + } + +#else + + FT_UNUSED( raster ); + FT_UNUSED( mode ); + FT_UNUSED( palette ); + +#endif + } + + + static int + ft_black_render( black_PRaster raster, + const FT_Raster_Params* params ) + { + const FT_Outline* outline = (const FT_Outline*)params->source; + const FT_Bitmap* target_map = params->target; + black_PWorker worker; + + + if ( !raster || !raster->buffer || !raster->buffer_size ) + return Raster_Err_Not_Ini; + + if ( !outline ) + return Raster_Err_Invalid; + + /* return immediately if the outline is empty */ + if ( outline->n_points == 0 || outline->n_contours <= 0 ) + return Raster_Err_None; + + if ( !outline->contours || !outline->points ) + return Raster_Err_Invalid; + + if ( outline->n_points != + outline->contours[outline->n_contours - 1] + 1 ) + return Raster_Err_Invalid; + + worker = raster->worker; + + /* this version of the raster does not support direct rendering, sorry */ + if ( params->flags & FT_RASTER_FLAG_DIRECT ) + return Raster_Err_Unsupported; + + if ( !target_map ) + return Raster_Err_Invalid; + + /* nothing to do */ + if ( !target_map->width || !target_map->rows ) + return Raster_Err_None; + + if ( !target_map->buffer ) + return Raster_Err_Invalid; + + ras.outline = *outline; + ras.target = *target_map; + + worker->buff = (PLong) raster->buffer; + worker->sizeBuff = worker->buff + + raster->buffer_size / sizeof ( Long ); +#ifdef FT_RASTER_OPTION_ANTI_ALIASING + worker->grays = raster->grays; + worker->gray_width = raster->gray_width; + + FT_MEM_ZERO( worker->gray_lines, worker->gray_width * 2 ); +#endif + + return ( params->flags & FT_RASTER_FLAG_AA ) + ? Render_Gray_Glyph( RAS_VAR ) + : Render_Glyph( RAS_VAR ); + } + + + FT_DEFINE_RASTER_FUNCS( ft_standard_raster, + FT_GLYPH_FORMAT_OUTLINE, + (FT_Raster_New_Func) ft_black_new, + (FT_Raster_Reset_Func) ft_black_reset, + (FT_Raster_Set_Mode_Func)ft_black_set_mode, + (FT_Raster_Render_Func) ft_black_render, + (FT_Raster_Done_Func) ft_black_done + ) + + +/* END */ diff --git a/src/raster/ftraster.h b/src/raster/ftraster.h new file mode 100644 index 0000000..80fe46d --- /dev/null +++ b/src/raster/ftraster.h @@ -0,0 +1,46 @@ +/***************************************************************************/ +/* */ +/* ftraster.h */ +/* */ +/* The FreeType glyph rasterizer (specification). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used */ +/* modified and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTRASTER_H__ +#define __FTRASTER_H__ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_IMAGE_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* Uncomment the following line if you are using ftraster.c as a */ + /* standalone module, fully independent of FreeType. */ + /* */ +/* #define _STANDALONE_ */ + + FT_EXPORT_VAR( const FT_Raster_Funcs ) ft_standard_raster; + + +FT_END_HEADER + +#endif /* __FTRASTER_H__ */ + + +/* END */ diff --git a/src/raster/ftrend1.c b/src/raster/ftrend1.c new file mode 100644 index 0000000..859cb7d --- /dev/null +++ b/src/raster/ftrend1.c @@ -0,0 +1,305 @@ +/***************************************************************************/ +/* */ +/* ftrend1.c */ +/* */ +/* The FreeType glyph rasterizer interface (body). */ +/* */ +/* Copyright 1996-2003, 2005, 2006, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_OUTLINE_H +#include "ftrend1.h" +#include "ftraster.h" +#include "rastpic.h" + +#include "rasterrs.h" + + + /* initialize renderer -- init its raster */ + static FT_Error + ft_raster1_init( FT_Renderer render ) + { + FT_Library library = FT_MODULE_LIBRARY( render ); + + + render->clazz->raster_class->raster_reset( render->raster, + library->raster_pool, + library->raster_pool_size ); + + return Raster_Err_Ok; + } + + + /* set render-specific mode */ + static FT_Error + ft_raster1_set_mode( FT_Renderer render, + FT_ULong mode_tag, + FT_Pointer data ) + { + /* we simply pass it to the raster */ + return render->clazz->raster_class->raster_set_mode( render->raster, + mode_tag, + data ); + } + + + /* transform a given glyph image */ + static FT_Error + ft_raster1_transform( FT_Renderer render, + FT_GlyphSlot slot, + const FT_Matrix* matrix, + const FT_Vector* delta ) + { + FT_Error error = Raster_Err_Ok; + + + if ( slot->format != render->glyph_format ) + { + error = Raster_Err_Invalid_Argument; + goto Exit; + } + + if ( matrix ) + FT_Outline_Transform( &slot->outline, matrix ); + + if ( delta ) + FT_Outline_Translate( &slot->outline, delta->x, delta->y ); + + Exit: + return error; + } + + + /* return the glyph's control box */ + static void + ft_raster1_get_cbox( FT_Renderer render, + FT_GlyphSlot slot, + FT_BBox* cbox ) + { + FT_MEM_ZERO( cbox, sizeof ( *cbox ) ); + + if ( slot->format == render->glyph_format ) + FT_Outline_Get_CBox( &slot->outline, cbox ); + } + + + /* convert a slot's glyph image into a bitmap */ + static FT_Error + ft_raster1_render( FT_Renderer render, + FT_GlyphSlot slot, + FT_Render_Mode mode, + const FT_Vector* origin ) + { + FT_Error error; + FT_Outline* outline; + FT_BBox cbox; + FT_UInt width, height, pitch; + FT_Bitmap* bitmap; + FT_Memory memory; + + FT_Raster_Params params; + + + /* check glyph image format */ + if ( slot->format != render->glyph_format ) + { + error = Raster_Err_Invalid_Argument; + goto Exit; + } + + /* check rendering mode */ +#ifndef FT_CONFIG_OPTION_PIC + if ( mode != FT_RENDER_MODE_MONO ) + { + /* raster1 is only capable of producing monochrome bitmaps */ + if ( render->clazz == &ft_raster1_renderer_class ) + return Raster_Err_Cannot_Render_Glyph; + } + else + { + /* raster5 is only capable of producing 5-gray-levels bitmaps */ + if ( render->clazz == &ft_raster5_renderer_class ) + return Raster_Err_Cannot_Render_Glyph; + } +#else /* FT_CONFIG_OPTION_PIC */ + /* When PIC is enabled, we cannot get to the class object */ + /* so instead we check the final character in the class name */ + /* ("raster5" or "raster1"). Yes this is a hack. */ + /* The "correct" thing to do is have different render function */ + /* for each of the classes. */ + if ( mode != FT_RENDER_MODE_MONO ) + { + /* raster1 is only capable of producing monochrome bitmaps */ + if ( render->clazz->root.module_name[6] == '1' ) + return Raster_Err_Cannot_Render_Glyph; + } + else + { + /* raster5 is only capable of producing 5-gray-levels bitmaps */ + if ( render->clazz->root.module_name[6] == '5' ) + return Raster_Err_Cannot_Render_Glyph; + } +#endif /* FT_CONFIG_OPTION_PIC */ + + outline = &slot->outline; + + /* translate the outline to the new origin if needed */ + if ( origin ) + FT_Outline_Translate( outline, origin->x, origin->y ); + + /* compute the control box, and grid fit it */ + FT_Outline_Get_CBox( outline, &cbox ); + + /* undocumented but confirmed: bbox values get rounded */ +#if 1 + cbox.xMin = FT_PIX_ROUND( cbox.xMin ); + cbox.yMin = FT_PIX_ROUND( cbox.yMin ); + cbox.xMax = FT_PIX_ROUND( cbox.xMax ); + cbox.yMax = FT_PIX_ROUND( cbox.yMax ); +#else + cbox.xMin = FT_PIX_FLOOR( cbox.xMin ); + cbox.yMin = FT_PIX_FLOOR( cbox.yMin ); + cbox.xMax = FT_PIX_CEIL( cbox.xMax ); + cbox.yMax = FT_PIX_CEIL( cbox.yMax ); +#endif + + width = (FT_UInt)( ( cbox.xMax - cbox.xMin ) >> 6 ); + height = (FT_UInt)( ( cbox.yMax - cbox.yMin ) >> 6 ); + + if ( width > FT_USHORT_MAX || height > FT_USHORT_MAX ) + { + error = Raster_Err_Invalid_Argument; + goto Exit; + } + + bitmap = &slot->bitmap; + memory = render->root.memory; + + /* release old bitmap buffer */ + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + { + FT_FREE( bitmap->buffer ); + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + + /* allocate new one, depends on pixel format */ + if ( !( mode & FT_RENDER_MODE_MONO ) ) + { + /* we pad to 32 bits, only for backwards compatibility with FT 1.x */ + pitch = FT_PAD_CEIL( width, 4 ); + bitmap->pixel_mode = FT_PIXEL_MODE_GRAY; + bitmap->num_grays = 256; + } + else + { + pitch = ( ( width + 15 ) >> 4 ) << 1; + bitmap->pixel_mode = FT_PIXEL_MODE_MONO; + } + + bitmap->width = width; + bitmap->rows = height; + bitmap->pitch = pitch; + + if ( FT_ALLOC_MULT( bitmap->buffer, pitch, height ) ) + goto Exit; + + slot->internal->flags |= FT_GLYPH_OWN_BITMAP; + + /* translate outline to render it into the bitmap */ + FT_Outline_Translate( outline, -cbox.xMin, -cbox.yMin ); + + /* set up parameters */ + params.target = bitmap; + params.source = outline; + params.flags = 0; + + if ( bitmap->pixel_mode == FT_PIXEL_MODE_GRAY ) + params.flags |= FT_RASTER_FLAG_AA; + + /* render outline into the bitmap */ + error = render->raster_render( render->raster, ¶ms ); + + FT_Outline_Translate( outline, cbox.xMin, cbox.yMin ); + + if ( error ) + goto Exit; + + slot->format = FT_GLYPH_FORMAT_BITMAP; + slot->bitmap_left = (FT_Int)( cbox.xMin >> 6 ); + slot->bitmap_top = (FT_Int)( cbox.yMax >> 6 ); + + Exit: + return error; + } + + + FT_DEFINE_RENDERER( ft_raster1_renderer_class, + + FT_MODULE_RENDERER, + sizeof ( FT_RendererRec ), + + "raster1", + 0x10000L, + 0x20000L, + + 0, /* module specific interface */ + + (FT_Module_Constructor)ft_raster1_init, + (FT_Module_Destructor) 0, + (FT_Module_Requester) 0 + , + + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Renderer_RenderFunc) ft_raster1_render, + (FT_Renderer_TransformFunc)ft_raster1_transform, + (FT_Renderer_GetCBoxFunc) ft_raster1_get_cbox, + (FT_Renderer_SetModeFunc) ft_raster1_set_mode, + + (FT_Raster_Funcs*) &FT_STANDARD_RASTER_GET + ) + + + /* This renderer is _NOT_ part of the default modules; you will need */ + /* to register it by hand in your application. It should only be */ + /* used for backwards-compatibility with FT 1.x anyway. */ + /* */ + FT_DEFINE_RENDERER( ft_raster5_renderer_class, + + FT_MODULE_RENDERER, + sizeof ( FT_RendererRec ), + + "raster5", + 0x10000L, + 0x20000L, + + 0, /* module specific interface */ + + (FT_Module_Constructor)ft_raster1_init, + (FT_Module_Destructor) 0, + (FT_Module_Requester) 0 + , + + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Renderer_RenderFunc) ft_raster1_render, + (FT_Renderer_TransformFunc)ft_raster1_transform, + (FT_Renderer_GetCBoxFunc) ft_raster1_get_cbox, + (FT_Renderer_SetModeFunc) ft_raster1_set_mode, + + (FT_Raster_Funcs*) &FT_STANDARD_RASTER_GET + ) + + +/* END */ diff --git a/src/raster/ftrend1.h b/src/raster/ftrend1.h new file mode 100644 index 0000000..4cf1286 --- /dev/null +++ b/src/raster/ftrend1.h @@ -0,0 +1,44 @@ +/***************************************************************************/ +/* */ +/* ftrend1.h */ +/* */ +/* The FreeType glyph rasterizer interface (specification). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTREND1_H__ +#define __FTREND1_H__ + + +#include <ft2build.h> +#include FT_RENDER_H + + +FT_BEGIN_HEADER + + + FT_DECLARE_RENDERER( ft_raster1_renderer_class ) + + /* this renderer is _NOT_ part of the default modules, you'll need */ + /* to register it by hand in your application. It should only be */ + /* used for backwards-compatibility with FT 1.x anyway. */ + /* */ + FT_DECLARE_RENDERER( ft_raster5_renderer_class ) + + +FT_END_HEADER + +#endif /* __FTREND1_H__ */ + + +/* END */ diff --git a/src/raster/module.mk b/src/raster/module.mk new file mode 100644 index 0000000..cbff5df --- /dev/null +++ b/src/raster/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 renderer module definition +# + + +# Copyright 1996-2000, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += RASTER_MODULE + +define RASTER_MODULE +$(OPEN_DRIVER) FT_Renderer_Class, ft_raster1_renderer_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)raster $(ECHO_DRIVER_DESC)monochrome bitmap renderer$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/raster/raster.c b/src/raster/raster.c new file mode 100644 index 0000000..1202a11 --- /dev/null +++ b/src/raster/raster.c @@ -0,0 +1,27 @@ +/***************************************************************************/ +/* */ +/* raster.c */ +/* */ +/* FreeType monochrome rasterer module component (body only). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> +#include "rastpic.c" +#include "ftraster.c" +#include "ftrend1.c" + + +/* END */ diff --git a/src/raster/rasterrs.h b/src/raster/rasterrs.h new file mode 100644 index 0000000..ab85c00 --- /dev/null +++ b/src/raster/rasterrs.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* rasterrs.h */ +/* */ +/* monochrome renderer error codes (specification only). */ +/* */ +/* Copyright 2001, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the monochrome renderer error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __RASTERRS_H__ +#define __RASTERRS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX Raster_Err_ +#define FT_ERR_BASE FT_Mod_Err_Raster + +#include FT_ERRORS_H + +#endif /* __RASTERRS_H__ */ + + +/* END */ diff --git a/src/raster/rastpic.c b/src/raster/rastpic.c new file mode 100644 index 0000000..2883e3f --- /dev/null +++ b/src/raster/rastpic.c @@ -0,0 +1,97 @@ +/***************************************************************************/ +/* */ +/* rastpic.c */ +/* */ +/* The FreeType position independent code services for raster module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "rastpic.h" +#include "rasterrs.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from ftraster.c */ + void + FT_Init_Class_ft_standard_raster( FT_Raster_Funcs* funcs ); + + void + ft_raster1_renderer_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + + + if ( pic_container->raster ) + { + RasterPIC* container = (RasterPIC*)pic_container->raster; + if ( --container->ref_count ) + return; + FT_FREE( container ); + pic_container->raster = NULL; + } + } + + + FT_Error + ft_raster1_renderer_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = Raster_Err_Ok; + RasterPIC* container; + FT_Memory memory = library->memory; + + + /* since this function also serve raster5 renderer, + it implements reference counting */ + if ( pic_container->raster ) + { + ((RasterPIC*)pic_container->raster)->ref_count++; + return error; + } + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->raster = container; + container->ref_count = 1; + + /* initialize pointer table - this is how the module usually expects this data */ + FT_Init_Class_ft_standard_raster( &container->ft_standard_raster ); +/*Exit:*/ + if( error ) + ft_raster1_renderer_class_pic_free( library ); + return error; + } + + /* re-route these init and free functions to the above functions */ + FT_Error + ft_raster5_renderer_class_pic_init( FT_Library library ) + { + return ft_raster1_renderer_class_pic_init( library ); + } + + void + ft_raster5_renderer_class_pic_free( FT_Library library ) + { + ft_raster1_renderer_class_pic_free( library ); + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/src/raster/rastpic.h b/src/raster/rastpic.h new file mode 100644 index 0000000..7822a24 --- /dev/null +++ b/src/raster/rastpic.h @@ -0,0 +1,63 @@ +/***************************************************************************/ +/* */ +/* rastpic.h */ +/* */ +/* The FreeType position independent code services for raster module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __RASTPIC_H__ +#define __RASTPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC +#define FT_STANDARD_RASTER_GET ft_standard_raster + +#else /* FT_CONFIG_OPTION_PIC */ + + typedef struct RasterPIC_ + { + int ref_count; + FT_Raster_Funcs ft_standard_raster; + } RasterPIC; + +#define GET_PIC(lib) ((RasterPIC*)((lib)->pic_container.raster)) +#define FT_STANDARD_RASTER_GET (GET_PIC(library)->ft_standard_raster) + + /* see rastpic.c for the implementation */ + void + ft_raster1_renderer_class_pic_free( FT_Library library ); + + void + ft_raster5_renderer_class_pic_free( FT_Library library ); + + FT_Error + ft_raster1_renderer_class_pic_init( FT_Library library ); + + FT_Error + ft_raster5_renderer_class_pic_init( FT_Library library ); + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __RASTPIC_H__ */ + + +/* END */ diff --git a/src/raster/rules.mk b/src/raster/rules.mk new file mode 100644 index 0000000..0e0b5e4 --- /dev/null +++ b/src/raster/rules.mk @@ -0,0 +1,70 @@ +# +# FreeType 2 renderer module build rules +# + + +# Copyright 1996-2000, 2001, 2003, 2008, 2009, 2011 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# raster driver directory +# +RASTER_DIR := $(SRC_DIR)/raster + +# compilation flags for the driver +# +RASTER_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(RASTER_DIR)) + + +# raster driver sources (i.e., C files) +# +RASTER_DRV_SRC := $(RASTER_DIR)/ftraster.c \ + $(RASTER_DIR)/ftrend1.c \ + $(RASTER_DIR)/rastpic.c + + +# raster driver headers +# +RASTER_DRV_H := $(RASTER_DRV_SRC:%.c=%.h) \ + $(RASTER_DIR)/rasterrs.h + + +# raster driver object(s) +# +# RASTER_DRV_OBJ_M is used during `multi' builds. +# RASTER_DRV_OBJ_S is used during `single' builds. +# +RASTER_DRV_OBJ_M := $(RASTER_DRV_SRC:$(RASTER_DIR)/%.c=$(OBJ_DIR)/%.$O) +RASTER_DRV_OBJ_S := $(OBJ_DIR)/raster.$O + +# raster driver source file for single build +# +RASTER_DRV_SRC_S := $(RASTER_DIR)/raster.c + + +# raster driver - single object +# +$(RASTER_DRV_OBJ_S): $(RASTER_DRV_SRC_S) $(RASTER_DRV_SRC) \ + $(FREETYPE_H) $(RASTER_DRV_H) + $(RASTER_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(RASTER_DRV_SRC_S)) + + +# raster driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(RASTER_DIR)/%.c $(FREETYPE_H) $(RASTER_DRV_H) + $(RASTER_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(RASTER_DRV_OBJ_S) +DRV_OBJS_M += $(RASTER_DRV_OBJ_M) + + +# EOF diff --git a/src/sfnt/Jamfile b/src/sfnt/Jamfile new file mode 100644 index 0000000..cb20b1b --- /dev/null +++ b/src/sfnt/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/sfnt Jamfile +# +# Copyright 2001, 2002, 2004, 2005 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) sfnt ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = sfobjs sfdriver ttcmap ttmtx ttpost ttload ttsbit ttkern ttbdf sfntpic ; + } + else + { + _sources = sfnt ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/sfnt Jamfile diff --git a/src/sfnt/module.mk b/src/sfnt/module.mk new file mode 100644 index 0000000..95fd6a3 --- /dev/null +++ b/src/sfnt/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 SFNT module definition +# + + +# Copyright 1996-2000, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += SFNT_MODULE + +define SFNT_MODULE +$(OPEN_DRIVER) FT_Module_Class, sfnt_module_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)sfnt $(ECHO_DRIVER_DESC)helper module for TrueType & OpenType formats$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/sfnt/rules.mk b/src/sfnt/rules.mk new file mode 100644 index 0000000..02cee58 --- /dev/null +++ b/src/sfnt/rules.mk @@ -0,0 +1,80 @@ +# +# FreeType 2 SFNT driver configuration rules +# + + +# Copyright 1996-2000, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2011 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# SFNT driver directory +# +SFNT_DIR := $(SRC_DIR)/sfnt + + +# compilation flags for the driver +# +SFNT_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(SFNT_DIR)) + + +# SFNT driver sources (i.e., C files) +# +SFNT_DRV_SRC := $(SFNT_DIR)/ttload.c \ + $(SFNT_DIR)/ttmtx.c \ + $(SFNT_DIR)/ttcmap.c \ + $(SFNT_DIR)/ttsbit.c \ + $(SFNT_DIR)/ttpost.c \ + $(SFNT_DIR)/ttkern.c \ + $(SFNT_DIR)/ttbdf.c \ + $(SFNT_DIR)/sfobjs.c \ + $(SFNT_DIR)/sfdriver.c \ + $(SFNT_DIR)/sfntpic.c + +# SFNT driver headers +# +# Note that ttsbit0.c gets #included by ttsbit.c. +# +SFNT_DRV_H := $(SFNT_DRV_SRC:%c=%h) \ + $(SFNT_DIR)/sferrors.h \ + $(SFNT_DIR)/ttsbit0.c + + +# SFNT driver object(s) +# +# SFNT_DRV_OBJ_M is used during `multi' builds. +# SFNT_DRV_OBJ_S is used during `single' builds. +# +SFNT_DRV_OBJ_M := $(SFNT_DRV_SRC:$(SFNT_DIR)/%.c=$(OBJ_DIR)/%.$O) +SFNT_DRV_OBJ_S := $(OBJ_DIR)/sfnt.$O + +# SFNT driver source file for single build +# +SFNT_DRV_SRC_S := $(SFNT_DIR)/sfnt.c + + +# SFNT driver - single object +# +$(SFNT_DRV_OBJ_S): $(SFNT_DRV_SRC_S) $(SFNT_DRV_SRC) \ + $(FREETYPE_H) $(SFNT_DRV_H) + $(SFNT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(SFNT_DRV_SRC_S)) + + +# SFNT driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(SFNT_DIR)/%.c $(FREETYPE_H) $(SFNT_DRV_H) + $(SFNT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(SFNT_DRV_OBJ_S) +DRV_OBJS_M += $(SFNT_DRV_OBJ_M) + + +# EOF diff --git a/src/sfnt/sfdriver.c b/src/sfnt/sfdriver.c new file mode 100644 index 0000000..847d83d --- /dev/null +++ b/src/sfnt/sfdriver.c @@ -0,0 +1,667 @@ +/***************************************************************************/ +/* */ +/* sfdriver.c */ +/* */ +/* High-level SFNT driver interface (body). */ +/* */ +/* Copyright 1996-2007, 2009-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_SFNT_H +#include FT_INTERNAL_OBJECTS_H + +#include "sfdriver.h" +#include "ttload.h" +#include "sfobjs.h" +#include "sfntpic.h" + +#include "sferrors.h" + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS +#include "ttsbit.h" +#endif + +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES +#include "ttpost.h" +#endif + +#ifdef TT_CONFIG_OPTION_BDF +#include "ttbdf.h" +#include FT_SERVICE_BDF_H +#endif + +#include "ttcmap.h" +#include "ttkern.h" +#include "ttmtx.h" + +#include FT_SERVICE_GLYPH_DICT_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_SFNT_H +#include FT_SERVICE_TT_CMAP_H + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_sfdriver + + + /* + * SFNT TABLE SERVICE + * + */ + + static void* + get_sfnt_table( TT_Face face, + FT_Sfnt_Tag tag ) + { + void* table; + + + switch ( tag ) + { + case ft_sfnt_head: + table = &face->header; + break; + + case ft_sfnt_hhea: + table = &face->horizontal; + break; + + case ft_sfnt_vhea: + table = face->vertical_info ? &face->vertical : 0; + break; + + case ft_sfnt_os2: + table = face->os2.version == 0xFFFFU ? 0 : &face->os2; + break; + + case ft_sfnt_post: + table = &face->postscript; + break; + + case ft_sfnt_maxp: + table = &face->max_profile; + break; + + case ft_sfnt_pclt: + table = face->pclt.Version ? &face->pclt : 0; + break; + + default: + table = 0; + } + + return table; + } + + + static FT_Error + sfnt_table_info( TT_Face face, + FT_UInt idx, + FT_ULong *tag, + FT_ULong *offset, + FT_ULong *length ) + { + if ( !offset || !length ) + return SFNT_Err_Invalid_Argument; + + if ( !tag ) + *length = face->num_tables; + else + { + if ( idx >= face->num_tables ) + return SFNT_Err_Table_Missing; + + *tag = face->dir_tables[idx].Tag; + *offset = face->dir_tables[idx].Offset; + *length = face->dir_tables[idx].Length; + } + + return SFNT_Err_Ok; + } + + + FT_DEFINE_SERVICE_SFNT_TABLEREC(sfnt_service_sfnt_table, + (FT_SFNT_TableLoadFunc)tt_face_load_any, + (FT_SFNT_TableGetFunc) get_sfnt_table, + (FT_SFNT_TableInfoFunc)sfnt_table_info + ) + + +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES + + /* + * GLYPH DICT SERVICE + * + */ + + static FT_Error + sfnt_get_glyph_name( TT_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ) + { + FT_String* gname; + FT_Error error; + + + error = tt_face_get_ps_name( face, glyph_index, &gname ); + if ( !error ) + FT_STRCPYN( buffer, gname, buffer_max ); + + return error; + } + + + static FT_UInt + sfnt_get_name_index( TT_Face face, + FT_String* glyph_name ) + { + FT_Face root = &face->root; + FT_UInt i, max_gid = FT_UINT_MAX; + + + if ( root->num_glyphs < 0 ) + return 0; + else if ( ( FT_ULong ) root->num_glyphs < FT_UINT_MAX ) + max_gid = ( FT_UInt ) root->num_glyphs; + else + FT_TRACE0(( "Ignore glyph names for invalid GID 0x%08x - 0x%08x\n", + FT_UINT_MAX, root->num_glyphs )); + + for ( i = 0; i < max_gid; i++ ) + { + FT_String* gname; + FT_Error error = tt_face_get_ps_name( face, i, &gname ); + + + if ( error ) + continue; + + if ( !ft_strcmp( glyph_name, gname ) ) + return i; + } + + return 0; + } + + + FT_DEFINE_SERVICE_GLYPHDICTREC(sfnt_service_glyph_dict, + (FT_GlyphDict_GetNameFunc) sfnt_get_glyph_name, + (FT_GlyphDict_NameIndexFunc)sfnt_get_name_index + ) + +#endif /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES */ + + + /* + * POSTSCRIPT NAME SERVICE + * + */ + + static const char* + sfnt_get_ps_name( TT_Face face ) + { + FT_Int n, found_win, found_apple; + const char* result = NULL; + + + /* shouldn't happen, but just in case to avoid memory leaks */ + if ( face->postscript_name ) + return face->postscript_name; + + /* scan the name table to see whether we have a Postscript name here, */ + /* either in Macintosh or Windows platform encodings */ + found_win = -1; + found_apple = -1; + + for ( n = 0; n < face->num_names; n++ ) + { + TT_NameEntryRec* name = face->name_table.names + n; + + + if ( name->nameID == 6 && name->stringLength > 0 ) + { + if ( name->platformID == 3 && + name->encodingID == 1 && + name->languageID == 0x409 ) + found_win = n; + + if ( name->platformID == 1 && + name->encodingID == 0 && + name->languageID == 0 ) + found_apple = n; + } + } + + if ( found_win != -1 ) + { + FT_Memory memory = face->root.memory; + TT_NameEntryRec* name = face->name_table.names + found_win; + FT_UInt len = name->stringLength / 2; + FT_Error error = SFNT_Err_Ok; + + FT_UNUSED( error ); + + + if ( !FT_ALLOC( result, name->stringLength + 1 ) ) + { + FT_Stream stream = face->name_table.stream; + FT_String* r = (FT_String*)result; + FT_Byte* p = (FT_Byte*)name->string; + + + if ( FT_STREAM_SEEK( name->stringOffset ) || + FT_FRAME_ENTER( name->stringLength ) ) + { + FT_FREE( result ); + name->stringLength = 0; + name->stringOffset = 0; + FT_FREE( name->string ); + + goto Exit; + } + + p = (FT_Byte*)stream->cursor; + + for ( ; len > 0; len--, p += 2 ) + { + if ( p[0] == 0 && p[1] >= 32 && p[1] < 128 ) + *r++ = p[1]; + } + *r = '\0'; + + FT_FRAME_EXIT(); + } + goto Exit; + } + + if ( found_apple != -1 ) + { + FT_Memory memory = face->root.memory; + TT_NameEntryRec* name = face->name_table.names + found_apple; + FT_UInt len = name->stringLength; + FT_Error error = SFNT_Err_Ok; + + FT_UNUSED( error ); + + + if ( !FT_ALLOC( result, len + 1 ) ) + { + FT_Stream stream = face->name_table.stream; + + + if ( FT_STREAM_SEEK( name->stringOffset ) || + FT_STREAM_READ( result, len ) ) + { + name->stringOffset = 0; + name->stringLength = 0; + FT_FREE( name->string ); + FT_FREE( result ); + goto Exit; + } + ((char*)result)[len] = '\0'; + } + } + + Exit: + face->postscript_name = result; + return result; + } + + FT_DEFINE_SERVICE_PSFONTNAMEREC(sfnt_service_ps_name, + (FT_PsName_GetFunc)sfnt_get_ps_name + ) + + + /* + * TT CMAP INFO + */ + FT_DEFINE_SERVICE_TTCMAPSREC(tt_service_get_cmap_info, + (TT_CMap_Info_GetFunc)tt_get_cmap_info + ) + + +#ifdef TT_CONFIG_OPTION_BDF + + static FT_Error + sfnt_get_charset_id( TT_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ) + { + BDF_PropertyRec encoding, registry; + FT_Error error; + + + /* XXX: I don't know whether this is correct, since + * tt_face_find_bdf_prop only returns something correct if we have + * previously selected a size that is listed in the BDF table. + * Should we change the BDF table format to include single offsets + * for `CHARSET_REGISTRY' and `CHARSET_ENCODING'? + */ + error = tt_face_find_bdf_prop( face, "CHARSET_REGISTRY", ®istry ); + if ( !error ) + { + error = tt_face_find_bdf_prop( face, "CHARSET_ENCODING", &encoding ); + if ( !error ) + { + if ( registry.type == BDF_PROPERTY_TYPE_ATOM && + encoding.type == BDF_PROPERTY_TYPE_ATOM ) + { + *acharset_encoding = encoding.u.atom; + *acharset_registry = registry.u.atom; + } + else + error = SFNT_Err_Invalid_Argument; + } + } + + return error; + } + + + FT_DEFINE_SERVICE_BDFRec(sfnt_service_bdf, + (FT_BDF_GetCharsetIdFunc) sfnt_get_charset_id, + (FT_BDF_GetPropertyFunc) tt_face_find_bdf_prop + ) + +#endif /* TT_CONFIG_OPTION_BDF */ + + + /* + * SERVICE LIST + */ + +#if defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES && defined TT_CONFIG_OPTION_BDF + FT_DEFINE_SERVICEDESCREC5(sfnt_services, + FT_SERVICE_ID_SFNT_TABLE, &FT_SFNT_SERVICE_SFNT_TABLE_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_SFNT_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_GLYPH_DICT, &FT_SFNT_SERVICE_GLYPH_DICT_GET, + FT_SERVICE_ID_BDF, &FT_SFNT_SERVICE_BDF_GET, + FT_SERVICE_ID_TT_CMAP, &FT_TT_SERVICE_GET_CMAP_INFO_GET + ) +#elif defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES + FT_DEFINE_SERVICEDESCREC4(sfnt_services, + FT_SERVICE_ID_SFNT_TABLE, &FT_SFNT_SERVICE_SFNT_TABLE_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_SFNT_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_GLYPH_DICT, &FT_SFNT_SERVICE_GLYPH_DICT_GET, + FT_SERVICE_ID_TT_CMAP, &FT_TT_SERVICE_GET_CMAP_INFO_GET + ) +#elif defined TT_CONFIG_OPTION_BDF + FT_DEFINE_SERVICEDESCREC4(sfnt_services, + FT_SERVICE_ID_SFNT_TABLE, &FT_SFNT_SERVICE_SFNT_TABLE_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_SFNT_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_BDF, &FT_SFNT_SERVICE_BDF_GET, + FT_SERVICE_ID_TT_CMAP, &FT_TT_SERVICE_GET_CMAP_INFO_GET + ) +#else + FT_DEFINE_SERVICEDESCREC3(sfnt_services, + FT_SERVICE_ID_SFNT_TABLE, &FT_SFNT_SERVICE_SFNT_TABLE_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &FT_SFNT_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_TT_CMAP, &FT_TT_SERVICE_GET_CMAP_INFO_GET + ) +#endif + + + FT_CALLBACK_DEF( FT_Module_Interface ) + sfnt_get_interface( FT_Module module, + const char* module_interface ) + { + /* FT_SFNT_SERVICES_GET derefers `library' in PIC mode */ +#ifdef FT_CONFIG_OPTION_PIC + FT_Library library; + + + if ( !module ) + return NULL; + library = module->library; + if ( !library ) + return NULL; +#else + FT_UNUSED( module ); +#endif + return ft_service_list_lookup( FT_SFNT_SERVICES_GET, module_interface ); + } + + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_CALLBACK_DEF( FT_Error ) + tt_face_load_sfnt_header_stub( TT_Face face, + FT_Stream stream, + FT_Long face_index, + SFNT_Header header ) + { + FT_UNUSED( face ); + FT_UNUSED( stream ); + FT_UNUSED( face_index ); + FT_UNUSED( header ); + + return SFNT_Err_Unimplemented_Feature; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_face_load_directory_stub( TT_Face face, + FT_Stream stream, + SFNT_Header header ) + { + FT_UNUSED( face ); + FT_UNUSED( stream ); + FT_UNUSED( header ); + + return SFNT_Err_Unimplemented_Feature; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_face_load_hdmx_stub( TT_Face face, + FT_Stream stream ) + { + FT_UNUSED( face ); + FT_UNUSED( stream ); + + return SFNT_Err_Unimplemented_Feature; + } + + + FT_CALLBACK_DEF( void ) + tt_face_free_hdmx_stub( TT_Face face ) + { + FT_UNUSED( face ); + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_face_set_sbit_strike_stub( TT_Face face, + FT_UInt x_ppem, + FT_UInt y_ppem, + FT_ULong* astrike_index ) + { + /* + * We simply forge a FT_Size_Request and call the real function + * that does all the work. + * + * This stub might be called by libXfont in the X.Org Xserver, + * compiled against version 2.1.8 or newer. + */ + + FT_Size_RequestRec req; + + + req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; + req.width = (FT_F26Dot6)x_ppem; + req.height = (FT_F26Dot6)y_ppem; + req.horiResolution = 0; + req.vertResolution = 0; + + *astrike_index = 0x7FFFFFFFUL; + + return tt_face_set_sbit_strike( face, &req, astrike_index ); + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_face_load_sbit_stub( TT_Face face, + FT_Stream stream ) + { + FT_UNUSED( face ); + FT_UNUSED( stream ); + + /* + * This function was originally implemented to load the sbit table. + * However, it has been replaced by `tt_face_load_eblc', and this stub + * is only there for some rogue clients which would want to call it + * directly (which doesn't make much sense). + */ + return SFNT_Err_Unimplemented_Feature; + } + + + FT_CALLBACK_DEF( void ) + tt_face_free_sbit_stub( TT_Face face ) + { + /* nothing to do in this stub */ + FT_UNUSED( face ); + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_face_load_charmap_stub( TT_Face face, + void* cmap, + FT_Stream input ) + { + FT_UNUSED( face ); + FT_UNUSED( cmap ); + FT_UNUSED( input ); + + return SFNT_Err_Unimplemented_Feature; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_face_free_charmap_stub( TT_Face face, + void* cmap ) + { + FT_UNUSED( face ); + FT_UNUSED( cmap ); + + return SFNT_Err_Ok; + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS +#define PUT_EMBEDDED_BITMAPS(a) a +#else +#define PUT_EMBEDDED_BITMAPS(a) 0 +#endif +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES +#define PUT_PS_NAMES(a) a +#else +#define PUT_PS_NAMES(a) 0 +#endif + + FT_DEFINE_SFNT_INTERFACE(sfnt_interface, + tt_face_goto_table, + + sfnt_init_face, + sfnt_load_face, + sfnt_done_face, + sfnt_get_interface, + + tt_face_load_any, + + tt_face_load_sfnt_header_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_face_load_directory_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + tt_face_load_head, + tt_face_load_hhea, + tt_face_load_cmap, + tt_face_load_maxp, + tt_face_load_os2, + tt_face_load_post, + + tt_face_load_name, + tt_face_free_name, + + tt_face_load_hdmx_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_face_free_hdmx_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + tt_face_load_kern, + tt_face_load_gasp, + tt_face_load_pclt, + + /* see `ttload.h' */ + PUT_EMBEDDED_BITMAPS(tt_face_load_bhed), + + tt_face_set_sbit_strike_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_face_load_sbit_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + tt_find_sbit_image, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_load_sbit_metrics, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + PUT_EMBEDDED_BITMAPS(tt_face_load_sbit_image), + + tt_face_free_sbit_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + /* see `ttpost.h' */ + PUT_PS_NAMES(tt_face_get_ps_name), + PUT_PS_NAMES(tt_face_free_ps_names), + + tt_face_load_charmap_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + tt_face_free_charmap_stub, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + /* since version 2.1.8 */ + + tt_face_get_kerning, + + /* since version 2.2 */ + + tt_face_load_font_dir, + tt_face_load_hmtx, + + /* see `ttsbit.h' and `sfnt.h' */ + PUT_EMBEDDED_BITMAPS(tt_face_load_eblc), + PUT_EMBEDDED_BITMAPS(tt_face_free_eblc), + + PUT_EMBEDDED_BITMAPS(tt_face_set_sbit_strike), + PUT_EMBEDDED_BITMAPS(tt_face_load_strike_metrics), + + tt_face_get_metrics + ) + + + FT_DEFINE_MODULE(sfnt_module_class, + + 0, /* not a font driver or renderer */ + sizeof ( FT_ModuleRec ), + + "sfnt", /* driver name */ + 0x10000L, /* driver version 1.0 */ + 0x20000L, /* driver requires FreeType 2.0 or higher */ + + (const void*)&FT_SFNT_INTERFACE_GET, /* module specific interface */ + + (FT_Module_Constructor)0, + (FT_Module_Destructor) 0, + (FT_Module_Requester) sfnt_get_interface + ) + + +/* END */ diff --git a/src/sfnt/sfdriver.h b/src/sfnt/sfdriver.h new file mode 100644 index 0000000..5de25d5 --- /dev/null +++ b/src/sfnt/sfdriver.h @@ -0,0 +1,38 @@ +/***************************************************************************/ +/* */ +/* sfdriver.h */ +/* */ +/* High-level SFNT driver interface (specification). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SFDRIVER_H__ +#define __SFDRIVER_H__ + + +#include <ft2build.h> +#include FT_MODULE_H + + +FT_BEGIN_HEADER + + + FT_DECLARE_MODULE( sfnt_module_class ) + + +FT_END_HEADER + +#endif /* __SFDRIVER_H__ */ + + +/* END */ diff --git a/src/sfnt/sferrors.h b/src/sfnt/sferrors.h new file mode 100644 index 0000000..564a3fe --- /dev/null +++ b/src/sfnt/sferrors.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* sferrors.h */ +/* */ +/* SFNT error codes (specification only). */ +/* */ +/* Copyright 2001, 2004, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the SFNT error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __SFERRORS_H__ +#define __SFERRORS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX SFNT_Err_ +#define FT_ERR_BASE FT_Mod_Err_SFNT + +#define FT_KEEP_ERR_PREFIX + +#include FT_ERRORS_H + +#endif /* __SFERRORS_H__ */ + +/* END */ diff --git a/src/sfnt/sfnt.c b/src/sfnt/sfnt.c new file mode 100644 index 0000000..fc507b4 --- /dev/null +++ b/src/sfnt/sfnt.c @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* sfnt.c */ +/* */ +/* Single object library component. */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> +#include "sfntpic.c" +#include "ttload.c" +#include "ttmtx.c" +#include "ttcmap.c" +#include "ttkern.c" +#include "sfobjs.c" +#include "sfdriver.c" + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS +#include "ttsbit.c" +#endif + +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES +#include "ttpost.c" +#endif + +#ifdef TT_CONFIG_OPTION_BDF +#include "ttbdf.c" +#endif + +/* END */ diff --git a/src/sfnt/sfntpic.c b/src/sfnt/sfntpic.c new file mode 100644 index 0000000..1372376 --- /dev/null +++ b/src/sfnt/sfntpic.c @@ -0,0 +1,146 @@ +/***************************************************************************/ +/* */ +/* sfntpic.c */ +/* */ +/* The FreeType position independent code services for sfnt module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "sfntpic.h" +#include "sferrors.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from sfdriver.c */ + FT_Error + FT_Create_Class_sfnt_services( FT_Library library, + FT_ServiceDescRec** ouput_class ); + + void + FT_Destroy_Class_sfnt_services( FT_Library library, + FT_ServiceDescRec* clazz ); + + void + FT_Init_Class_sfnt_service_bdf( FT_Service_BDFRec* clazz ); + + void + FT_Init_Class_sfnt_interface( FT_Library library, + SFNT_Interface* clazz ); + + void + FT_Init_Class_sfnt_service_glyph_dict( + FT_Library library, + FT_Service_GlyphDictRec* clazz ); + + void + FT_Init_Class_sfnt_service_ps_name( + FT_Library library, + FT_Service_PsFontNameRec* clazz ); + + void + FT_Init_Class_tt_service_get_cmap_info( + FT_Library library, + FT_Service_TTCMapsRec* clazz ); + + void + FT_Init_Class_sfnt_service_sfnt_table( + FT_Service_SFNT_TableRec* clazz ); + + /* forward declaration of PIC init functions from ttcmap.c */ + FT_Error + FT_Create_Class_tt_cmap_classes( FT_Library library, + TT_CMap_Class** output_class ); + + void + FT_Destroy_Class_tt_cmap_classes( FT_Library library, + TT_CMap_Class* clazz ); + + void + sfnt_module_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + + + if ( pic_container->sfnt ) + { + sfntModulePIC* container = (sfntModulePIC*)pic_container->sfnt; + + + if ( container->sfnt_services ) + FT_Destroy_Class_sfnt_services( library, + container->sfnt_services ); + container->sfnt_services = NULL; + if ( container->tt_cmap_classes ) + FT_Destroy_Class_tt_cmap_classes( library, + container->tt_cmap_classes ); + container->tt_cmap_classes = NULL; + FT_FREE( container ); + pic_container->sfnt = NULL; + } + } + + + FT_Error + sfnt_module_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = SFNT_Err_Ok; + sfntModulePIC* container; + FT_Memory memory = library->memory; + + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->sfnt = container; + + /* initialize pointer table - this is how the module usually expects this data */ + error = FT_Create_Class_sfnt_services( library, + &container->sfnt_services ); + if ( error ) + goto Exit; + error = FT_Create_Class_tt_cmap_classes( library, + &container->tt_cmap_classes ); + if ( error ) + goto Exit; + + FT_Init_Class_sfnt_service_glyph_dict( + library, &container->sfnt_service_glyph_dict ); + FT_Init_Class_sfnt_service_ps_name( + library, &container->sfnt_service_ps_name ); + FT_Init_Class_tt_service_get_cmap_info( + library, &container->tt_service_get_cmap_info ); + FT_Init_Class_sfnt_service_sfnt_table( + &container->sfnt_service_sfnt_table ); +#ifdef TT_CONFIG_OPTION_BDF + FT_Init_Class_sfnt_service_bdf( &container->sfnt_service_bdf ); +#endif + FT_Init_Class_sfnt_interface( library, &container->sfnt_interface ); + +Exit: + if ( error ) + sfnt_module_class_pic_free( library ); + return error; + } + + + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/src/sfnt/sfntpic.h b/src/sfnt/sfntpic.h new file mode 100644 index 0000000..f7993d1 --- /dev/null +++ b/src/sfnt/sfntpic.h @@ -0,0 +1,95 @@ +/***************************************************************************/ +/* */ +/* sfntpic.h */ +/* */ +/* The FreeType position independent code services for sfnt module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SFNTPIC_H__ +#define __SFNTPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + + #ifndef FT_CONFIG_OPTION_PIC +#define FT_SFNT_SERVICES_GET sfnt_services +#define FT_SFNT_SERVICE_GLYPH_DICT_GET sfnt_service_glyph_dict +#define FT_SFNT_SERVICE_PS_NAME_GET sfnt_service_ps_name +#define FT_TT_SERVICE_GET_CMAP_INFO_GET tt_service_get_cmap_info +#define FT_SFNT_SERVICES_GET sfnt_services +#define FT_TT_CMAP_CLASSES_GET tt_cmap_classes +#define FT_SFNT_SERVICE_SFNT_TABLE_GET sfnt_service_sfnt_table +#define FT_SFNT_SERVICE_BDF_GET sfnt_service_bdf +#define FT_SFNT_INTERFACE_GET sfnt_interface + +#else /* FT_CONFIG_OPTION_PIC */ + +/* some include files required for members of sfntModulePIC */ +#include FT_SERVICE_GLYPH_DICT_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_SFNT_H +#include FT_SERVICE_TT_CMAP_H +#ifdef TT_CONFIG_OPTION_BDF +#include "ttbdf.h" +#include FT_SERVICE_BDF_H +#endif +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include "ttcmap.h" + +typedef struct sfntModulePIC_ + { + FT_ServiceDescRec* sfnt_services; + FT_Service_GlyphDictRec sfnt_service_glyph_dict; + FT_Service_PsFontNameRec sfnt_service_ps_name; + FT_Service_TTCMapsRec tt_service_get_cmap_info; + TT_CMap_Class* tt_cmap_classes; + FT_Service_SFNT_TableRec sfnt_service_sfnt_table; +#ifdef TT_CONFIG_OPTION_BDF + FT_Service_BDFRec sfnt_service_bdf; +#endif + SFNT_Interface sfnt_interface; + } sfntModulePIC; + +#define GET_PIC(lib) ((sfntModulePIC*)((lib)->pic_container.sfnt)) +#define FT_SFNT_SERVICES_GET (GET_PIC(library)->sfnt_services) +#define FT_SFNT_SERVICE_GLYPH_DICT_GET (GET_PIC(library)->sfnt_service_glyph_dict) +#define FT_SFNT_SERVICE_PS_NAME_GET (GET_PIC(library)->sfnt_service_ps_name) +#define FT_TT_SERVICE_GET_CMAP_INFO_GET (GET_PIC(library)->tt_service_get_cmap_info) +#define FT_SFNT_SERVICES_GET (GET_PIC(library)->sfnt_services) +#define FT_TT_CMAP_CLASSES_GET (GET_PIC(library)->tt_cmap_classes) +#define FT_SFNT_SERVICE_SFNT_TABLE_GET (GET_PIC(library)->sfnt_service_sfnt_table) +#define FT_SFNT_SERVICE_BDF_GET (GET_PIC(library)->sfnt_service_bdf) +#define FT_SFNT_INTERFACE_GET (GET_PIC(library)->sfnt_interface) + + /* see sfntpic.c for the implementation */ + void + sfnt_module_class_pic_free( FT_Library library ); + + FT_Error + sfnt_module_class_pic_init( FT_Library library ); + +#endif /* FT_CONFIG_OPTION_PIC */ + +/* */ + +FT_END_HEADER + +#endif /* __SFNTPIC_H__ */ + + +/* END */ diff --git a/src/sfnt/sfobjs.c b/src/sfnt/sfobjs.c new file mode 100644 index 0000000..d7be631 --- /dev/null +++ b/src/sfnt/sfobjs.c @@ -0,0 +1,1163 @@ +/***************************************************************************/ +/* */ +/* sfobjs.c */ +/* */ +/* SFNT object management (base). */ +/* */ +/* Copyright 1996-2008, 2010-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include "sfobjs.h" +#include "ttload.h" +#include "ttcmap.h" +#include "ttkern.h" +#include FT_INTERNAL_SFNT_H +#include FT_INTERNAL_DEBUG_H +#include FT_TRUETYPE_IDS_H +#include FT_TRUETYPE_TAGS_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_SFNT_NAMES_H +#include "sferrors.h" + +#ifdef TT_CONFIG_OPTION_BDF +#include "ttbdf.h" +#endif + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_sfobjs + + + + /* convert a UTF-16 name entry to ASCII */ + static FT_String* + tt_name_entry_ascii_from_utf16( TT_NameEntry entry, + FT_Memory memory ) + { + FT_String* string = NULL; + FT_UInt len, code, n; + FT_Byte* read = (FT_Byte*)entry->string; + FT_Error error; + + + len = (FT_UInt)entry->stringLength / 2; + + if ( FT_NEW_ARRAY( string, len + 1 ) ) + return NULL; + + for ( n = 0; n < len; n++ ) + { + code = FT_NEXT_USHORT( read ); + if ( code < 32 || code > 127 ) + code = '?'; + + string[n] = (char)code; + } + + string[len] = 0; + + return string; + } + + + /* convert an Apple Roman or symbol name entry to ASCII */ + static FT_String* + tt_name_entry_ascii_from_other( TT_NameEntry entry, + FT_Memory memory ) + { + FT_String* string = NULL; + FT_UInt len, code, n; + FT_Byte* read = (FT_Byte*)entry->string; + FT_Error error; + + + len = (FT_UInt)entry->stringLength; + + if ( FT_NEW_ARRAY( string, len + 1 ) ) + return NULL; + + for ( n = 0; n < len; n++ ) + { + code = *read++; + if ( code < 32 || code > 127 ) + code = '?'; + + string[n] = (char)code; + } + + string[len] = 0; + + return string; + } + + + typedef FT_String* (*TT_NameEntry_ConvertFunc)( TT_NameEntry entry, + FT_Memory memory ); + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_get_name */ + /* */ + /* <Description> */ + /* Returns a given ENGLISH name record in ASCII. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face object. */ + /* */ + /* nameid :: The name id of the name record to return. */ + /* */ + /* <InOut> */ + /* name :: The address of a string pointer. NULL if no name is */ + /* present. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + tt_face_get_name( TT_Face face, + FT_UShort nameid, + FT_String** name ) + { + FT_Memory memory = face->root.memory; + FT_Error error = SFNT_Err_Ok; + FT_String* result = NULL; + FT_UShort n; + TT_NameEntryRec* rec; + FT_Int found_apple = -1; + FT_Int found_apple_roman = -1; + FT_Int found_apple_english = -1; + FT_Int found_win = -1; + FT_Int found_unicode = -1; + + FT_Bool is_english = 0; + + TT_NameEntry_ConvertFunc convert; + + + FT_ASSERT( name ); + + rec = face->name_table.names; + for ( n = 0; n < face->num_names; n++, rec++ ) + { + /* According to the OpenType 1.3 specification, only Microsoft or */ + /* Apple platform IDs might be used in the `name' table. The */ + /* `Unicode' platform is reserved for the `cmap' table, and the */ + /* `ISO' one is deprecated. */ + /* */ + /* However, the Apple TrueType specification doesn't say the same */ + /* thing and goes to suggest that all Unicode `name' table entries */ + /* should be coded in UTF-16 (in big-endian format I suppose). */ + /* */ + if ( rec->nameID == nameid && rec->stringLength > 0 ) + { + switch ( rec->platformID ) + { + case TT_PLATFORM_APPLE_UNICODE: + case TT_PLATFORM_ISO: + /* there is `languageID' to check there. We should use this */ + /* field only as a last solution when nothing else is */ + /* available. */ + /* */ + found_unicode = n; + break; + + case TT_PLATFORM_MACINTOSH: + /* This is a bit special because some fonts will use either */ + /* an English language id, or a Roman encoding id, to indicate */ + /* the English version of its font name. */ + /* */ + if ( rec->languageID == TT_MAC_LANGID_ENGLISH ) + found_apple_english = n; + else if ( rec->encodingID == TT_MAC_ID_ROMAN ) + found_apple_roman = n; + break; + + case TT_PLATFORM_MICROSOFT: + /* we only take a non-English name when there is nothing */ + /* else available in the font */ + /* */ + if ( found_win == -1 || ( rec->languageID & 0x3FF ) == 0x009 ) + { + switch ( rec->encodingID ) + { + case TT_MS_ID_SYMBOL_CS: + case TT_MS_ID_UNICODE_CS: + case TT_MS_ID_UCS_4: + is_english = FT_BOOL( ( rec->languageID & 0x3FF ) == 0x009 ); + found_win = n; + break; + + default: + ; + } + } + break; + + default: + ; + } + } + } + + found_apple = found_apple_roman; + if ( found_apple_english >= 0 ) + found_apple = found_apple_english; + + /* some fonts contain invalid Unicode or Macintosh formatted entries; */ + /* we will thus favor names encoded in Windows formats if available */ + /* (provided it is an English name) */ + /* */ + convert = NULL; + if ( found_win >= 0 && !( found_apple >= 0 && !is_english ) ) + { + rec = face->name_table.names + found_win; + switch ( rec->encodingID ) + { + /* all Unicode strings are encoded using UTF-16BE */ + case TT_MS_ID_UNICODE_CS: + case TT_MS_ID_SYMBOL_CS: + convert = tt_name_entry_ascii_from_utf16; + break; + + case TT_MS_ID_UCS_4: + /* Apparently, if this value is found in a name table entry, it is */ + /* documented as `full Unicode repertoire'. Experience with the */ + /* MsGothic font shipped with Windows Vista shows that this really */ + /* means UTF-16 encoded names (UCS-4 values are only used within */ + /* charmaps). */ + convert = tt_name_entry_ascii_from_utf16; + break; + + default: + ; + } + } + else if ( found_apple >= 0 ) + { + rec = face->name_table.names + found_apple; + convert = tt_name_entry_ascii_from_other; + } + else if ( found_unicode >= 0 ) + { + rec = face->name_table.names + found_unicode; + convert = tt_name_entry_ascii_from_utf16; + } + + if ( rec && convert ) + { + if ( rec->string == NULL ) + { + FT_Stream stream = face->name_table.stream; + + + if ( FT_QNEW_ARRAY ( rec->string, rec->stringLength ) || + FT_STREAM_SEEK( rec->stringOffset ) || + FT_STREAM_READ( rec->string, rec->stringLength ) ) + { + FT_FREE( rec->string ); + rec->stringLength = 0; + result = NULL; + goto Exit; + } + } + + result = convert( rec, memory ); + } + + Exit: + *name = result; + return error; + } + + + static FT_Encoding + sfnt_find_encoding( int platform_id, + int encoding_id ) + { + typedef struct TEncoding_ + { + int platform_id; + int encoding_id; + FT_Encoding encoding; + + } TEncoding; + + static + const TEncoding tt_encodings[] = + { + { TT_PLATFORM_ISO, -1, FT_ENCODING_UNICODE }, + + { TT_PLATFORM_APPLE_UNICODE, -1, FT_ENCODING_UNICODE }, + + { TT_PLATFORM_MACINTOSH, TT_MAC_ID_ROMAN, FT_ENCODING_APPLE_ROMAN }, + + { TT_PLATFORM_MICROSOFT, TT_MS_ID_SYMBOL_CS, FT_ENCODING_MS_SYMBOL }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_UCS_4, FT_ENCODING_UNICODE }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_UNICODE_CS, FT_ENCODING_UNICODE }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_SJIS, FT_ENCODING_SJIS }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_GB2312, FT_ENCODING_GB2312 }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_BIG_5, FT_ENCODING_BIG5 }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_WANSUNG, FT_ENCODING_WANSUNG }, + { TT_PLATFORM_MICROSOFT, TT_MS_ID_JOHAB, FT_ENCODING_JOHAB } + }; + + const TEncoding *cur, *limit; + + + cur = tt_encodings; + limit = cur + sizeof ( tt_encodings ) / sizeof ( tt_encodings[0] ); + + for ( ; cur < limit; cur++ ) + { + if ( cur->platform_id == platform_id ) + { + if ( cur->encoding_id == encoding_id || + cur->encoding_id == -1 ) + return cur->encoding; + } + } + + return FT_ENCODING_NONE; + } + + + /* Fill in face->ttc_header. If the font is not a TTC, it is */ + /* synthesized into a TTC with one offset table. */ + static FT_Error + sfnt_open_font( FT_Stream stream, + TT_Face face ) + { + FT_Memory memory = stream->memory; + FT_Error error; + FT_ULong tag, offset; + + static const FT_Frame_Field ttc_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TTC_HeaderRec + + FT_FRAME_START( 8 ), + FT_FRAME_LONG( version ), + FT_FRAME_LONG( count ), /* this is ULong in the specs */ + FT_FRAME_END + }; + + + face->ttc_header.tag = 0; + face->ttc_header.version = 0; + face->ttc_header.count = 0; + + offset = FT_STREAM_POS(); + + if ( FT_READ_ULONG( tag ) ) + return error; + + if ( tag != 0x00010000UL && + tag != TTAG_ttcf && + tag != TTAG_OTTO && + tag != TTAG_true && + tag != TTAG_typ1 && + tag != 0x00020000UL ) + { + FT_TRACE2(( " not a font using the SFNT container format\n" )); + return SFNT_Err_Unknown_File_Format; + } + + face->ttc_header.tag = TTAG_ttcf; + + if ( tag == TTAG_ttcf ) + { + FT_Int n; + + + FT_TRACE3(( "sfnt_open_font: file is a collection\n" )); + + if ( FT_STREAM_READ_FIELDS( ttc_header_fields, &face->ttc_header ) ) + return error; + + if ( face->ttc_header.count == 0 ) + return SFNT_Err_Invalid_Table; + + /* a rough size estimate: let's conservatively assume that there */ + /* is just a single table info in each subfont header (12 + 16*1 = */ + /* 28 bytes), thus we have (at least) `12 + 4*count' bytes for the */ + /* size of the TTC header plus `28*count' bytes for all subfont */ + /* headers */ + if ( (FT_ULong)face->ttc_header.count > stream->size / ( 28 + 4 ) ) + return SFNT_Err_Array_Too_Large; + + /* now read the offsets of each font in the file */ + if ( FT_NEW_ARRAY( face->ttc_header.offsets, face->ttc_header.count ) ) + return error; + + if ( FT_FRAME_ENTER( face->ttc_header.count * 4L ) ) + return error; + + for ( n = 0; n < face->ttc_header.count; n++ ) + face->ttc_header.offsets[n] = FT_GET_ULONG(); + + FT_FRAME_EXIT(); + } + else + { + FT_TRACE3(( "sfnt_open_font: synthesize TTC\n" )); + + face->ttc_header.version = 1 << 16; + face->ttc_header.count = 1; + + if ( FT_NEW( face->ttc_header.offsets ) ) + return error; + + face->ttc_header.offsets[0] = offset; + } + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + sfnt_init_face( FT_Stream stream, + TT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + FT_Error error; + FT_Library library = face->root.driver->root.library; + SFNT_Service sfnt; + + + /* for now, parameters are unused */ + FT_UNUSED( num_params ); + FT_UNUSED( params ); + + + sfnt = (SFNT_Service)face->sfnt; + if ( !sfnt ) + { + sfnt = (SFNT_Service)FT_Get_Module_Interface( library, "sfnt" ); + if ( !sfnt ) + { + FT_ERROR(( "sfnt_init_face: cannot access `sfnt' module\n" )); + return SFNT_Err_Missing_Module; + } + + face->sfnt = sfnt; + face->goto_table = sfnt->goto_table; + } + + FT_FACE_FIND_GLOBAL_SERVICE( face, face->psnames, POSTSCRIPT_CMAPS ); + + FT_TRACE2(( "SFNT driver\n" )); + + error = sfnt_open_font( stream, face ); + if ( error ) + return error; + + FT_TRACE2(( "sfnt_init_face: %08p, %ld\n", face, face_index )); + + if ( face_index < 0 ) + face_index = 0; + + if ( face_index >= face->ttc_header.count ) + return SFNT_Err_Invalid_Argument; + + if ( FT_STREAM_SEEK( face->ttc_header.offsets[face_index] ) ) + return error; + + /* check that we have a valid TrueType file */ + error = sfnt->load_font_dir( face, stream ); + if ( error ) + return error; + + face->root.num_faces = face->ttc_header.count; + face->root.face_index = face_index; + + return error; + } + + +#define LOAD_( x ) \ + do { \ + FT_TRACE2(( "`" #x "' " )); \ + FT_TRACE3(( "-->\n" )); \ + \ + error = sfnt->load_##x( face, stream ); \ + \ + FT_TRACE2(( "%s\n", ( !error ) \ + ? "loaded" \ + : ( error == SFNT_Err_Table_Missing ) \ + ? "missing" \ + : "failed to load" )); \ + FT_TRACE3(( "\n" )); \ + } while ( 0 ) + +#define LOADM_( x, vertical ) \ + do { \ + FT_TRACE2(( "`%s" #x "' ", \ + vertical ? "vertical " : "" )); \ + FT_TRACE3(( "-->\n" )); \ + \ + error = sfnt->load_##x( face, stream, vertical ); \ + \ + FT_TRACE2(( "%s\n", ( !error ) \ + ? "loaded" \ + : ( error == SFNT_Err_Table_Missing ) \ + ? "missing" \ + : "failed to load" )); \ + FT_TRACE3(( "\n" )); \ + } while ( 0 ) + +#define GET_NAME( id, field ) \ + do { \ + error = tt_face_get_name( face, TT_NAME_ID_##id, field ); \ + if ( error ) \ + goto Exit; \ + } while ( 0 ) + + + FT_LOCAL_DEF( FT_Error ) + sfnt_load_face( FT_Stream stream, + TT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + FT_Error error; +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES + FT_Error psnames_error; +#endif + FT_Bool has_outline; + FT_Bool is_apple_sbit; + FT_Bool ignore_preferred_family = FALSE; + FT_Bool ignore_preferred_subfamily = FALSE; + + SFNT_Service sfnt = (SFNT_Service)face->sfnt; + + FT_UNUSED( face_index ); + + /* Check parameters */ + + { + FT_Int i; + + + for ( i = 0; i < num_params; i++ ) + { + if ( params[i].tag == FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY ) + ignore_preferred_family = TRUE; + else if ( params[i].tag == FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY ) + ignore_preferred_subfamily = TRUE; + } + } + + /* Load tables */ + + /* We now support two SFNT-based bitmapped font formats. They */ + /* are recognized easily as they do not include a `glyf' */ + /* table. */ + /* */ + /* The first format comes from Apple, and uses a table named */ + /* `bhed' instead of `head' to store the font header (using */ + /* the same format). It also doesn't include horizontal and */ + /* vertical metrics tables (i.e. `hhea' and `vhea' tables are */ + /* missing). */ + /* */ + /* The other format comes from Microsoft, and is used with */ + /* WinCE/PocketPC. It looks like a standard TTF, except that */ + /* it doesn't contain outlines. */ + /* */ + + FT_TRACE2(( "sfnt_load_face: %08p\n\n", face )); + + /* do we have outlines in there? */ +#ifdef FT_CONFIG_OPTION_INCREMENTAL + has_outline = FT_BOOL( face->root.internal->incremental_interface != 0 || + tt_face_lookup_table( face, TTAG_glyf ) != 0 || + tt_face_lookup_table( face, TTAG_CFF ) != 0 ); +#else + has_outline = FT_BOOL( tt_face_lookup_table( face, TTAG_glyf ) != 0 || + tt_face_lookup_table( face, TTAG_CFF ) != 0 ); +#endif + + is_apple_sbit = 0; + + /* if this font doesn't contain outlines, we try to load */ + /* a `bhed' table */ + if ( !has_outline && sfnt->load_bhed ) + { + LOAD_( bhed ); + is_apple_sbit = FT_BOOL( !error ); + } + + /* load the font header (`head' table) if this isn't an Apple */ + /* sbit font file */ + if ( !is_apple_sbit ) + { + LOAD_( head ); + if ( error ) + goto Exit; + } + + if ( face->header.Units_Per_EM == 0 ) + { + error = SFNT_Err_Invalid_Table; + + goto Exit; + } + + /* the following tables are often not present in embedded TrueType */ + /* fonts within PDF documents, so don't check for them. */ + LOAD_( maxp ); + LOAD_( cmap ); + + /* the following tables are optional in PCL fonts -- */ + /* don't check for errors */ + LOAD_( name ); + LOAD_( post ); + +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES + psnames_error = error; +#endif + + /* do not load the metrics headers and tables if this is an Apple */ + /* sbit font file */ + if ( !is_apple_sbit ) + { + /* load the `hhea' and `hmtx' tables */ + LOADM_( hhea, 0 ); + if ( !error ) + { + LOADM_( hmtx, 0 ); + if ( error == SFNT_Err_Table_Missing ) + { + error = SFNT_Err_Hmtx_Table_Missing; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* If this is an incrementally loaded font and there are */ + /* overriding metrics, tolerate a missing `hmtx' table. */ + if ( face->root.internal->incremental_interface && + face->root.internal->incremental_interface->funcs-> + get_glyph_metrics ) + { + face->horizontal.number_Of_HMetrics = 0; + error = SFNT_Err_Ok; + } +#endif + } + } + else if ( error == SFNT_Err_Table_Missing ) + { + /* No `hhea' table necessary for SFNT Mac fonts. */ + if ( face->format_tag == TTAG_true ) + { + FT_TRACE2(( "This is an SFNT Mac font.\n" )); + + has_outline = 0; + error = SFNT_Err_Ok; + } + else + { + error = SFNT_Err_Horiz_Header_Missing; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* If this is an incrementally loaded font and there are */ + /* overriding metrics, tolerate a missing `hhea' table. */ + if ( face->root.internal->incremental_interface && + face->root.internal->incremental_interface->funcs-> + get_glyph_metrics ) + { + face->horizontal.number_Of_HMetrics = 0; + error = SFNT_Err_Ok; + } +#endif + + } + } + + if ( error ) + goto Exit; + + /* try to load the `vhea' and `vmtx' tables */ + LOADM_( hhea, 1 ); + if ( !error ) + { + LOADM_( hmtx, 1 ); + if ( !error ) + face->vertical_info = 1; + } + + if ( error && error != SFNT_Err_Table_Missing ) + goto Exit; + + LOAD_( os2 ); + if ( error ) + { + /* we treat the table as missing if there are any errors */ + face->os2.version = 0xFFFFU; + } + } + + /* the optional tables */ + + /* embedded bitmap support */ + if ( sfnt->load_eblc ) + { + LOAD_( eblc ); + if ( error ) + { + /* a font which contains neither bitmaps nor outlines is */ + /* still valid (although rather useless in most cases); */ + /* however, you can find such stripped fonts in PDFs */ + if ( error == SFNT_Err_Table_Missing ) + error = SFNT_Err_Ok; + else + goto Exit; + } + } + + LOAD_( pclt ); + if ( error ) + { + if ( error != SFNT_Err_Table_Missing ) + goto Exit; + + face->pclt.Version = 0; + } + + /* consider the kerning and gasp tables as optional */ + LOAD_( gasp ); + LOAD_( kern ); + + face->root.num_glyphs = face->max_profile.numGlyphs; + + /* Bit 8 of the `fsSelection' field in the `OS/2' table denotes */ + /* a WWS-only font face. `WWS' stands for `weight', width', and */ + /* `slope', a term used by Microsoft's Windows Presentation */ + /* Foundation (WPF). This flag has been introduced in version */ + /* 1.5 of the OpenType specification (May 2008). */ + + face->root.family_name = NULL; + face->root.style_name = NULL; + if ( face->os2.version != 0xFFFFU && face->os2.fsSelection & 256 ) + { + if ( !ignore_preferred_family ) + GET_NAME( PREFERRED_FAMILY, &face->root.family_name ); + if ( !face->root.family_name ) + GET_NAME( FONT_FAMILY, &face->root.family_name ); + + if ( !ignore_preferred_subfamily ) + GET_NAME( PREFERRED_SUBFAMILY, &face->root.style_name ); + if ( !face->root.style_name ) + GET_NAME( FONT_SUBFAMILY, &face->root.style_name ); + } + else + { + GET_NAME( WWS_FAMILY, &face->root.family_name ); + if ( !face->root.family_name && !ignore_preferred_family ) + GET_NAME( PREFERRED_FAMILY, &face->root.family_name ); + if ( !face->root.family_name ) + GET_NAME( FONT_FAMILY, &face->root.family_name ); + + GET_NAME( WWS_SUBFAMILY, &face->root.style_name ); + if ( !face->root.style_name && !ignore_preferred_subfamily ) + GET_NAME( PREFERRED_SUBFAMILY, &face->root.style_name ); + if ( !face->root.style_name ) + GET_NAME( FONT_SUBFAMILY, &face->root.style_name ); + } + + /* now set up root fields */ + { + FT_Face root = &face->root; + FT_Long flags = root->face_flags; + + + /*********************************************************************/ + /* */ + /* Compute face flags. */ + /* */ + if ( has_outline == TRUE ) + flags |= FT_FACE_FLAG_SCALABLE; /* scalable outlines */ + + /* The sfnt driver only supports bitmap fonts natively, thus we */ + /* don't set FT_FACE_FLAG_HINTER. */ + flags |= FT_FACE_FLAG_SFNT | /* SFNT file format */ + FT_FACE_FLAG_HORIZONTAL; /* horizontal data */ + +#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES + if ( psnames_error == SFNT_Err_Ok && + face->postscript.FormatType != 0x00030000L ) + flags |= FT_FACE_FLAG_GLYPH_NAMES; +#endif + + /* fixed width font? */ + if ( face->postscript.isFixedPitch ) + flags |= FT_FACE_FLAG_FIXED_WIDTH; + + /* vertical information? */ + if ( face->vertical_info ) + flags |= FT_FACE_FLAG_VERTICAL; + + /* kerning available ? */ + if ( TT_FACE_HAS_KERNING( face ) ) + flags |= FT_FACE_FLAG_KERNING; + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + /* Don't bother to load the tables unless somebody asks for them. */ + /* No need to do work which will (probably) not be used. */ + if ( tt_face_lookup_table( face, TTAG_glyf ) != 0 && + tt_face_lookup_table( face, TTAG_fvar ) != 0 && + tt_face_lookup_table( face, TTAG_gvar ) != 0 ) + flags |= FT_FACE_FLAG_MULTIPLE_MASTERS; +#endif + + root->face_flags = flags; + + /*********************************************************************/ + /* */ + /* Compute style flags. */ + /* */ + + flags = 0; + if ( has_outline == TRUE && face->os2.version != 0xFFFFU ) + { + /* We have an OS/2 table; use the `fsSelection' field. Bit 9 */ + /* indicates an oblique font face. This flag has been */ + /* introduced in version 1.5 of the OpenType specification. */ + + if ( face->os2.fsSelection & 512 ) /* bit 9 */ + flags |= FT_STYLE_FLAG_ITALIC; + else if ( face->os2.fsSelection & 1 ) /* bit 0 */ + flags |= FT_STYLE_FLAG_ITALIC; + + if ( face->os2.fsSelection & 32 ) /* bit 5 */ + flags |= FT_STYLE_FLAG_BOLD; + } + else + { + /* this is an old Mac font, use the header field */ + + if ( face->header.Mac_Style & 1 ) + flags |= FT_STYLE_FLAG_BOLD; + + if ( face->header.Mac_Style & 2 ) + flags |= FT_STYLE_FLAG_ITALIC; + } + + root->style_flags = flags; + + /*********************************************************************/ + /* */ + /* Polish the charmaps. */ + /* */ + /* Try to set the charmap encoding according to the platform & */ + /* encoding ID of each charmap. */ + /* */ + + tt_face_build_cmaps( face ); /* ignore errors */ + + + /* set the encoding fields */ + { + FT_Int m; + + + for ( m = 0; m < root->num_charmaps; m++ ) + { + FT_CharMap charmap = root->charmaps[m]; + + + charmap->encoding = sfnt_find_encoding( charmap->platform_id, + charmap->encoding_id ); + +#if 0 + if ( root->charmap == NULL && + charmap->encoding == FT_ENCODING_UNICODE ) + { + /* set 'root->charmap' to the first Unicode encoding we find */ + root->charmap = charmap; + } +#endif + } + } + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + /* + * Now allocate the root array of FT_Bitmap_Size records and + * populate them. Unfortunately, it isn't possible to indicate bit + * depths in the FT_Bitmap_Size record. This is a design error. + */ + { + FT_UInt i, count; + + +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + count = face->sbit_num_strikes; +#else + count = (FT_UInt)face->num_sbit_strikes; +#endif + + if ( count > 0 ) + { + FT_Memory memory = face->root.stream->memory; + FT_UShort em_size = face->header.Units_Per_EM; + FT_Short avgwidth = face->os2.xAvgCharWidth; + FT_Size_Metrics metrics; + + + if ( em_size == 0 || face->os2.version == 0xFFFFU ) + { + avgwidth = 0; + em_size = 1; + } + + if ( FT_NEW_ARRAY( root->available_sizes, count ) ) + goto Exit; + + for ( i = 0; i < count; i++ ) + { + FT_Bitmap_Size* bsize = root->available_sizes + i; + + + error = sfnt->load_strike_metrics( face, i, &metrics ); + if ( error ) + goto Exit; + + bsize->height = (FT_Short)( metrics.height >> 6 ); + bsize->width = (FT_Short)( + ( avgwidth * metrics.x_ppem + em_size / 2 ) / em_size ); + + bsize->x_ppem = metrics.x_ppem << 6; + bsize->y_ppem = metrics.y_ppem << 6; + + /* assume 72dpi */ + bsize->size = metrics.y_ppem << 6; + } + + root->face_flags |= FT_FACE_FLAG_FIXED_SIZES; + root->num_fixed_sizes = (FT_Int)count; + } + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + /* a font with no bitmaps and no outlines is scalable; */ + /* it has only empty glyphs then */ + if ( !FT_HAS_FIXED_SIZES( root ) && !FT_IS_SCALABLE( root ) ) + root->face_flags |= FT_FACE_FLAG_SCALABLE; + + + /*********************************************************************/ + /* */ + /* Set up metrics. */ + /* */ + if ( FT_IS_SCALABLE( root ) ) + { + /* XXX What about if outline header is missing */ + /* (e.g. sfnt wrapped bitmap)? */ + root->bbox.xMin = face->header.xMin; + root->bbox.yMin = face->header.yMin; + root->bbox.xMax = face->header.xMax; + root->bbox.yMax = face->header.yMax; + root->units_per_EM = face->header.Units_Per_EM; + + + /* XXX: Computing the ascender/descender/height is very different */ + /* from what the specification tells you. Apparently, we */ + /* must be careful because */ + /* */ + /* - not all fonts have an OS/2 table; in this case, we take */ + /* the values in the horizontal header. However, these */ + /* values very often are not reliable. */ + /* */ + /* - otherwise, the correct typographic values are in the */ + /* sTypoAscender, sTypoDescender & sTypoLineGap fields. */ + /* */ + /* However, certain fonts have these fields set to 0. */ + /* Rather, they have usWinAscent & usWinDescent correctly */ + /* set (but with different values). */ + /* */ + /* As an example, Arial Narrow is implemented through four */ + /* files ARIALN.TTF, ARIALNI.TTF, ARIALNB.TTF & ARIALNBI.TTF */ + /* */ + /* Strangely, all fonts have the same values in their */ + /* sTypoXXX fields, except ARIALNB which sets them to 0. */ + /* */ + /* On the other hand, they all have different */ + /* usWinAscent/Descent values -- as a conclusion, the OS/2 */ + /* table cannot be used to compute the text height reliably! */ + /* */ + + /* The ascender and descender are taken from the `hhea' table. */ + /* If zero, they are taken from the `OS/2' table. */ + + root->ascender = face->horizontal.Ascender; + root->descender = face->horizontal.Descender; + + root->height = (FT_Short)( root->ascender - root->descender + + face->horizontal.Line_Gap ); + + if ( !( root->ascender || root->descender ) ) + { + if ( face->os2.version != 0xFFFFU ) + { + if ( face->os2.sTypoAscender || face->os2.sTypoDescender ) + { + root->ascender = face->os2.sTypoAscender; + root->descender = face->os2.sTypoDescender; + + root->height = (FT_Short)( root->ascender - root->descender + + face->os2.sTypoLineGap ); + } + else + { + root->ascender = (FT_Short)face->os2.usWinAscent; + root->descender = -(FT_Short)face->os2.usWinDescent; + + root->height = (FT_UShort)( root->ascender - root->descender ); + } + } + } + + root->max_advance_width = face->horizontal.advance_Width_Max; + root->max_advance_height = (FT_Short)( face->vertical_info + ? face->vertical.advance_Height_Max + : root->height ); + + /* See http://www.microsoft.com/OpenType/OTSpec/post.htm -- */ + /* Adjust underline position from top edge to centre of */ + /* stroke to convert TrueType meaning to FreeType meaning. */ + root->underline_position = face->postscript.underlinePosition - + face->postscript.underlineThickness / 2; + root->underline_thickness = face->postscript.underlineThickness; + } + + } + + Exit: + FT_TRACE2(( "sfnt_load_face: done\n" )); + + return error; + } + + +#undef LOAD_ +#undef LOADM_ +#undef GET_NAME + + + FT_LOCAL_DEF( void ) + sfnt_done_face( TT_Face face ) + { + FT_Memory memory; + SFNT_Service sfnt; + + + if ( !face ) + return; + + memory = face->root.memory; + sfnt = (SFNT_Service)face->sfnt; + + if ( sfnt ) + { + /* destroy the postscript names table if it is loaded */ + if ( sfnt->free_psnames ) + sfnt->free_psnames( face ); + + /* destroy the embedded bitmaps table if it is loaded */ + if ( sfnt->free_eblc ) + sfnt->free_eblc( face ); + } + +#ifdef TT_CONFIG_OPTION_BDF + /* freeing the embedded BDF properties */ + tt_face_free_bdf_props( face ); +#endif + + /* freeing the kerning table */ + tt_face_done_kern( face ); + + /* freeing the collection table */ + FT_FREE( face->ttc_header.offsets ); + face->ttc_header.count = 0; + + /* freeing table directory */ + FT_FREE( face->dir_tables ); + face->num_tables = 0; + + { + FT_Stream stream = FT_FACE_STREAM( face ); + + + /* simply release the 'cmap' table frame */ + FT_FRAME_RELEASE( face->cmap_table ); + face->cmap_size = 0; + } + + /* freeing the horizontal metrics */ +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + { + FT_Stream stream = FT_FACE_STREAM( face ); + + + FT_FRAME_RELEASE( face->horz_metrics ); + FT_FRAME_RELEASE( face->vert_metrics ); + face->horz_metrics_size = 0; + face->vert_metrics_size = 0; + } +#else + FT_FREE( face->horizontal.long_metrics ); + FT_FREE( face->horizontal.short_metrics ); +#endif + + /* freeing the vertical ones, if any */ + if ( face->vertical_info ) + { + FT_FREE( face->vertical.long_metrics ); + FT_FREE( face->vertical.short_metrics ); + face->vertical_info = 0; + } + + /* freeing the gasp table */ + FT_FREE( face->gasp.gaspRanges ); + face->gasp.numRanges = 0; + + /* freeing the name table */ + if ( sfnt ) + sfnt->free_name( face ); + + /* freeing family and style name */ + FT_FREE( face->root.family_name ); + FT_FREE( face->root.style_name ); + + /* freeing sbit size table */ + FT_FREE( face->root.available_sizes ); + face->root.num_fixed_sizes = 0; + + FT_FREE( face->postscript_name ); + + face->sfnt = 0; + } + + +/* END */ diff --git a/src/sfnt/sfobjs.h b/src/sfnt/sfobjs.h new file mode 100644 index 0000000..6241c93 --- /dev/null +++ b/src/sfnt/sfobjs.h @@ -0,0 +1,54 @@ +/***************************************************************************/ +/* */ +/* sfobjs.h */ +/* */ +/* SFNT object management (specification). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __SFOBJS_H__ +#define __SFOBJS_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_SFNT_H +#include FT_INTERNAL_OBJECTS_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + sfnt_init_face( FT_Stream stream, + TT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( FT_Error ) + sfnt_load_face( FT_Stream stream, + TT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( void ) + sfnt_done_face( TT_Face face ); + + +FT_END_HEADER + +#endif /* __SFDRIVER_H__ */ + + +/* END */ diff --git a/src/sfnt/ttbdf.c b/src/sfnt/ttbdf.c new file mode 100644 index 0000000..18845c3 --- /dev/null +++ b/src/sfnt/ttbdf.c @@ -0,0 +1,250 @@ +/***************************************************************************/ +/* */ +/* ttbdf.c */ +/* */ +/* TrueType and OpenType embedded BDF properties (body). */ +/* */ +/* Copyright 2005, 2006, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttbdf.h" + +#include "sferrors.h" + + +#ifdef TT_CONFIG_OPTION_BDF + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttbdf + + + FT_LOCAL_DEF( void ) + tt_face_free_bdf_props( TT_Face face ) + { + TT_BDF bdf = &face->bdf; + + + if ( bdf->loaded ) + { + FT_Stream stream = FT_FACE(face)->stream; + + + if ( bdf->table != NULL ) + FT_FRAME_RELEASE( bdf->table ); + + bdf->table_end = NULL; + bdf->strings = NULL; + bdf->strings_size = 0; + } + } + + + static FT_Error + tt_face_load_bdf_props( TT_Face face, + FT_Stream stream ) + { + TT_BDF bdf = &face->bdf; + FT_ULong length; + FT_Error error; + + + FT_ZERO( bdf ); + + error = tt_face_goto_table( face, TTAG_BDF, stream, &length ); + if ( error || + length < 8 || + FT_FRAME_EXTRACT( length, bdf->table ) ) + { + error = SFNT_Err_Invalid_Table; + goto Exit; + } + + bdf->table_end = bdf->table + length; + + { + FT_Byte* p = bdf->table; + FT_UInt version = FT_NEXT_USHORT( p ); + FT_UInt num_strikes = FT_NEXT_USHORT( p ); + FT_ULong strings = FT_NEXT_ULONG ( p ); + FT_UInt count; + FT_Byte* strike; + + + if ( version != 0x0001 || + strings < 8 || + ( strings - 8 ) / 4 < num_strikes || + strings + 1 > length ) + { + goto BadTable; + } + + bdf->num_strikes = num_strikes; + bdf->strings = bdf->table + strings; + bdf->strings_size = length - strings; + + count = bdf->num_strikes; + p = bdf->table + 8; + strike = p + count * 4; + + + for ( ; count > 0; count-- ) + { + FT_UInt num_items = FT_PEEK_USHORT( p + 2 ); + + /* + * We don't need to check the value sets themselves, since this + * is done later. + */ + strike += 10 * num_items; + + p += 4; + } + + if ( strike > bdf->strings ) + goto BadTable; + } + + bdf->loaded = 1; + + Exit: + return error; + + BadTable: + FT_FRAME_RELEASE( bdf->table ); + FT_ZERO( bdf ); + error = SFNT_Err_Invalid_Table; + goto Exit; + } + + + FT_LOCAL_DEF( FT_Error ) + tt_face_find_bdf_prop( TT_Face face, + const char* property_name, + BDF_PropertyRec *aprop ) + { + TT_BDF bdf = &face->bdf; + FT_Size size = FT_FACE(face)->size; + FT_Error error = SFNT_Err_Ok; + FT_Byte* p; + FT_UInt count; + FT_Byte* strike; + FT_Offset property_len; + + + aprop->type = BDF_PROPERTY_TYPE_NONE; + + if ( bdf->loaded == 0 ) + { + error = tt_face_load_bdf_props( face, FT_FACE( face )->stream ); + if ( error ) + goto Exit; + } + + count = bdf->num_strikes; + p = bdf->table + 8; + strike = p + 4 * count; + + error = SFNT_Err_Invalid_Argument; + + if ( size == NULL || property_name == NULL ) + goto Exit; + + property_len = ft_strlen( property_name ); + if ( property_len == 0 ) + goto Exit; + + for ( ; count > 0; count-- ) + { + FT_UInt _ppem = FT_NEXT_USHORT( p ); + FT_UInt _count = FT_NEXT_USHORT( p ); + + if ( _ppem == size->metrics.y_ppem ) + { + count = _count; + goto FoundStrike; + } + + strike += 10 * _count; + } + goto Exit; + + FoundStrike: + p = strike; + for ( ; count > 0; count-- ) + { + FT_UInt type = FT_PEEK_USHORT( p + 4 ); + + if ( ( type & 0x10 ) != 0 ) + { + FT_UInt32 name_offset = FT_PEEK_ULONG( p ); + FT_UInt32 value = FT_PEEK_ULONG( p + 6 ); + + /* be a bit paranoid for invalid entries here */ + if ( name_offset < bdf->strings_size && + property_len < bdf->strings_size - name_offset && + ft_strncmp( property_name, + (const char*)bdf->strings + name_offset, + bdf->strings_size - name_offset ) == 0 ) + { + switch ( type & 0x0F ) + { + case 0x00: /* string */ + case 0x01: /* atoms */ + /* check that the content is really 0-terminated */ + if ( value < bdf->strings_size && + ft_memchr( bdf->strings + value, 0, bdf->strings_size ) ) + { + aprop->type = BDF_PROPERTY_TYPE_ATOM; + aprop->u.atom = (const char*)bdf->strings + value; + error = SFNT_Err_Ok; + goto Exit; + } + break; + + case 0x02: + aprop->type = BDF_PROPERTY_TYPE_INTEGER; + aprop->u.integer = (FT_Int32)value; + error = SFNT_Err_Ok; + goto Exit; + + case 0x03: + aprop->type = BDF_PROPERTY_TYPE_CARDINAL; + aprop->u.cardinal = value; + error = SFNT_Err_Ok; + goto Exit; + + default: + ; + } + } + } + p += 10; + } + + Exit: + return error; + } + +#endif /* TT_CONFIG_OPTION_BDF */ + + +/* END */ diff --git a/src/sfnt/ttbdf.h b/src/sfnt/ttbdf.h new file mode 100644 index 0000000..48a10d6 --- /dev/null +++ b/src/sfnt/ttbdf.h @@ -0,0 +1,46 @@ +/***************************************************************************/ +/* */ +/* ttbdf.h */ +/* */ +/* TrueType and OpenType embedded BDF properties (specification). */ +/* */ +/* Copyright 2005 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTBDF_H__ +#define __TTBDF_H__ + + +#include <ft2build.h> +#include "ttload.h" +#include FT_BDF_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( void ) + tt_face_free_bdf_props( TT_Face face ); + + + FT_LOCAL( FT_Error ) + tt_face_find_bdf_prop( TT_Face face, + const char* property_name, + BDF_PropertyRec *aprop ); + + +FT_END_HEADER + +#endif /* __TTBDF_H__ */ + + +/* END */ diff --git a/src/sfnt/ttcmap.c b/src/sfnt/ttcmap.c new file mode 100644 index 0000000..1dfd987 --- /dev/null +++ b/src/sfnt/ttcmap.c @@ -0,0 +1,3512 @@ +/***************************************************************************/ +/* */ +/* ttcmap.c */ +/* */ +/* TrueType character mapping table (cmap) support (body). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H + +#include "sferrors.h" /* must come before FT_INTERNAL_VALIDATE_H */ + +#include FT_INTERNAL_VALIDATE_H +#include FT_INTERNAL_STREAM_H +#include "ttload.h" +#include "ttcmap.h" +#include "sfntpic.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttcmap + + +#define TT_PEEK_SHORT FT_PEEK_SHORT +#define TT_PEEK_USHORT FT_PEEK_USHORT +#define TT_PEEK_UINT24 FT_PEEK_UOFF3 +#define TT_PEEK_LONG FT_PEEK_LONG +#define TT_PEEK_ULONG FT_PEEK_ULONG + +#define TT_NEXT_SHORT FT_NEXT_SHORT +#define TT_NEXT_USHORT FT_NEXT_USHORT +#define TT_NEXT_UINT24 FT_NEXT_UOFF3 +#define TT_NEXT_LONG FT_NEXT_LONG +#define TT_NEXT_ULONG FT_NEXT_ULONG + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap_init( TT_CMap cmap, + FT_Byte* table ) + { + cmap->data = table; + return SFNT_Err_Ok; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 0 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 0 */ + /* length 2 USHORT table length in bytes */ + /* language 4 USHORT Mac language code */ + /* glyph_ids 6 BYTE[256] array of glyph indices */ + /* 262 */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_0 + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap0_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 2; + FT_UInt length = TT_NEXT_USHORT( p ); + + + if ( table + length > valid->limit || length < 262 ) + FT_INVALID_TOO_SHORT; + + /* check glyph indices whenever necessary */ + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + FT_UInt n, idx; + + + p = table + 6; + for ( n = 0; n < 256; n++ ) + { + idx = *p++; + if ( idx >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap0_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_Byte* table = cmap->data; + + + return char_code < 256 ? table[6 + char_code] : 0; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap0_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_Byte* table = cmap->data; + FT_UInt32 charcode = *pchar_code; + FT_UInt32 result = 0; + FT_UInt gindex = 0; + + + table += 6; /* go to glyph IDs */ + while ( ++charcode < 256 ) + { + gindex = table[charcode]; + if ( gindex != 0 ) + { + result = charcode; + break; + } + } + + *pchar_code = result; + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap0_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 4; + + + cmap_info->format = 0; + cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap0_class_rec, + sizeof ( TT_CMapRec ), + + (FT_CMap_InitFunc) tt_cmap_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap0_char_index, + (FT_CMap_CharNextFunc) tt_cmap0_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 0, + (TT_CMap_ValidateFunc) tt_cmap0_validate, + (TT_CMap_Info_GetFunc) tt_cmap0_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_0 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 2 *****/ + /***** *****/ + /***** This is used for certain CJK encodings that encode text in a *****/ + /***** mixed 8/16 bits encoding along the following lines: *****/ + /***** *****/ + /***** * Certain byte values correspond to an 8-bit character code *****/ + /***** (typically in the range 0..127 for ASCII compatibility). *****/ + /***** *****/ + /***** * Certain byte values signal the first byte of a 2-byte *****/ + /***** character code (but these values are also valid as the *****/ + /***** second byte of a 2-byte character). *****/ + /***** *****/ + /***** The following charmap lookup and iteration functions all *****/ + /***** assume that the value "charcode" correspond to following: *****/ + /***** *****/ + /***** - For one byte characters, "charcode" is simply the *****/ + /***** character code. *****/ + /***** *****/ + /***** - For two byte characters, "charcode" is the 2-byte *****/ + /***** character code in big endian format. More exactly: *****/ + /***** *****/ + /***** (charcode >> 8) is the first byte value *****/ + /***** (charcode & 0xFF) is the second byte value *****/ + /***** *****/ + /***** Note that not all values of "charcode" are valid according *****/ + /***** to these rules, and the function moderately check the *****/ + /***** arguments. *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 2 */ + /* length 2 USHORT table length in bytes */ + /* language 4 USHORT Mac language code */ + /* keys 6 USHORT[256] sub-header keys */ + /* subs 518 SUBHEAD[NSUBS] sub-headers array */ + /* glyph_ids 518+NSUB*8 USHORT[] glyph ID array */ + /* */ + /* The `keys' table is used to map charcode high-bytes to sub-headers. */ + /* The value of `NSUBS' is the number of sub-headers defined in the */ + /* table and is computed by finding the maximum of the `keys' table. */ + /* */ + /* Note that for any n, `keys[n]' is a byte offset within the `subs' */ + /* table, i.e., it is the corresponding sub-header index multiplied */ + /* by 8. */ + /* */ + /* Each sub-header has the following format: */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* first 0 USHORT first valid low-byte */ + /* count 2 USHORT number of valid low-bytes */ + /* delta 4 SHORT see below */ + /* offset 6 USHORT see below */ + /* */ + /* A sub-header defines, for each high-byte, the range of valid */ + /* low-bytes within the charmap. Note that the range defined by `first' */ + /* and `count' must be completely included in the interval [0..255] */ + /* according to the specification. */ + /* */ + /* If a character code is contained within a given sub-header, then */ + /* mapping it to a glyph index is done as follows: */ + /* */ + /* * The value of `offset' is read. This is a _byte_ distance from the */ + /* location of the `offset' field itself into a slice of the */ + /* `glyph_ids' table. Let's call it `slice' (it is a USHORT[] too). */ + /* */ + /* * The value `slice[char.lo - first]' is read. If it is 0, there is */ + /* no glyph for the charcode. Otherwise, the value of `delta' is */ + /* added to it (modulo 65536) to form a new glyph index. */ + /* */ + /* It is up to the validation routine to check that all offsets fall */ + /* within the glyph IDs table (and not within the `subs' table itself or */ + /* outside of the CMap). */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_2 + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap2_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 2; /* skip format */ + FT_UInt length = TT_PEEK_USHORT( p ); + FT_UInt n, max_subs; + FT_Byte* keys; /* keys table */ + FT_Byte* subs; /* sub-headers */ + FT_Byte* glyph_ids; /* glyph ID array */ + + + if ( table + length > valid->limit || length < 6 + 512 ) + FT_INVALID_TOO_SHORT; + + keys = table + 6; + + /* parse keys to compute sub-headers count */ + p = keys; + max_subs = 0; + for ( n = 0; n < 256; n++ ) + { + FT_UInt idx = TT_NEXT_USHORT( p ); + + + /* value must be multiple of 8 */ + if ( valid->level >= FT_VALIDATE_PARANOID && ( idx & 7 ) != 0 ) + FT_INVALID_DATA; + + idx >>= 3; + + if ( idx > max_subs ) + max_subs = idx; + } + + FT_ASSERT( p == table + 518 ); + + subs = p; + glyph_ids = subs + (max_subs + 1) * 8; + if ( glyph_ids > valid->limit ) + FT_INVALID_TOO_SHORT; + + /* parse sub-headers */ + for ( n = 0; n <= max_subs; n++ ) + { + FT_UInt first_code, code_count, offset; + FT_Int delta; + FT_Byte* ids; + + + first_code = TT_NEXT_USHORT( p ); + code_count = TT_NEXT_USHORT( p ); + delta = TT_NEXT_SHORT( p ); + offset = TT_NEXT_USHORT( p ); + + /* many Dynalab fonts have empty sub-headers */ + if ( code_count == 0 ) + continue; + + /* check range within 0..255 */ + if ( valid->level >= FT_VALIDATE_PARANOID ) + { + if ( first_code >= 256 || first_code + code_count > 256 ) + FT_INVALID_DATA; + } + + /* check offset */ + if ( offset != 0 ) + { + ids = p - 2 + offset; + if ( ids < glyph_ids || ids + code_count*2 > table + length ) + FT_INVALID_OFFSET; + + /* check glyph IDs */ + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + FT_Byte* limit = p + code_count * 2; + FT_UInt idx; + + + for ( ; p < limit; ) + { + idx = TT_NEXT_USHORT( p ); + if ( idx != 0 ) + { + idx = ( idx + delta ) & 0xFFFFU; + if ( idx >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + } + } + } + + return SFNT_Err_Ok; + } + + + /* return sub header corresponding to a given character code */ + /* NULL on invalid charcode */ + static FT_Byte* + tt_cmap2_get_subheader( FT_Byte* table, + FT_UInt32 char_code ) + { + FT_Byte* result = NULL; + + + if ( char_code < 0x10000UL ) + { + FT_UInt char_lo = (FT_UInt)( char_code & 0xFF ); + FT_UInt char_hi = (FT_UInt)( char_code >> 8 ); + FT_Byte* p = table + 6; /* keys table */ + FT_Byte* subs = table + 518; /* subheaders table */ + FT_Byte* sub; + + + if ( char_hi == 0 ) + { + /* an 8-bit character code -- we use subHeader 0 in this case */ + /* to test whether the character code is in the charmap */ + /* */ + sub = subs; /* jump to first sub-header */ + + /* check that the sub-header for this byte is 0, which */ + /* indicates that it is really a valid one-byte value */ + /* Otherwise, return 0 */ + /* */ + p += char_lo * 2; + if ( TT_PEEK_USHORT( p ) != 0 ) + goto Exit; + } + else + { + /* a 16-bit character code */ + + /* jump to key entry */ + p += char_hi * 2; + /* jump to sub-header */ + sub = subs + ( FT_PAD_FLOOR( TT_PEEK_USHORT( p ), 8 ) ); + + /* check that the high byte isn't a valid one-byte value */ + if ( sub == subs ) + goto Exit; + } + result = sub; + } + Exit: + return result; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap2_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_Byte* table = cmap->data; + FT_UInt result = 0; + FT_Byte* subheader; + + + subheader = tt_cmap2_get_subheader( table, char_code ); + if ( subheader ) + { + FT_Byte* p = subheader; + FT_UInt idx = (FT_UInt)(char_code & 0xFF); + FT_UInt start, count; + FT_Int delta; + FT_UInt offset; + + + start = TT_NEXT_USHORT( p ); + count = TT_NEXT_USHORT( p ); + delta = TT_NEXT_SHORT ( p ); + offset = TT_PEEK_USHORT( p ); + + idx -= start; + if ( idx < count && offset != 0 ) + { + p += offset + 2 * idx; + idx = TT_PEEK_USHORT( p ); + + if ( idx != 0 ) + result = (FT_UInt)( idx + delta ) & 0xFFFFU; + } + } + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap2_char_next( TT_CMap cmap, + FT_UInt32 *pcharcode ) + { + FT_Byte* table = cmap->data; + FT_UInt gindex = 0; + FT_UInt32 result = 0; + FT_UInt32 charcode = *pcharcode + 1; + FT_Byte* subheader; + + + while ( charcode < 0x10000UL ) + { + subheader = tt_cmap2_get_subheader( table, charcode ); + if ( subheader ) + { + FT_Byte* p = subheader; + FT_UInt start = TT_NEXT_USHORT( p ); + FT_UInt count = TT_NEXT_USHORT( p ); + FT_Int delta = TT_NEXT_SHORT ( p ); + FT_UInt offset = TT_PEEK_USHORT( p ); + FT_UInt char_lo = (FT_UInt)( charcode & 0xFF ); + FT_UInt pos, idx; + + + if ( offset == 0 ) + goto Next_SubHeader; + + if ( char_lo < start ) + { + char_lo = start; + pos = 0; + } + else + pos = (FT_UInt)( char_lo - start ); + + p += offset + pos * 2; + charcode = FT_PAD_FLOOR( charcode, 256 ) + char_lo; + + for ( ; pos < count; pos++, charcode++ ) + { + idx = TT_NEXT_USHORT( p ); + + if ( idx != 0 ) + { + gindex = ( idx + delta ) & 0xFFFFU; + if ( gindex != 0 ) + { + result = charcode; + goto Exit; + } + } + } + } + + /* jump to next sub-header, i.e. higher byte value */ + Next_SubHeader: + charcode = FT_PAD_FLOOR( charcode, 256 ) + 256; + } + + Exit: + *pcharcode = result; + + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap2_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 4; + + + cmap_info->format = 2; + cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap2_class_rec, + sizeof ( TT_CMapRec ), + + (FT_CMap_InitFunc) tt_cmap_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap2_char_index, + (FT_CMap_CharNextFunc) tt_cmap2_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 2, + (TT_CMap_ValidateFunc) tt_cmap2_validate, + (TT_CMap_Info_GetFunc) tt_cmap2_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_2 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 4 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 4 */ + /* length 2 USHORT table length */ + /* in bytes */ + /* language 4 USHORT Mac language code */ + /* */ + /* segCountX2 6 USHORT 2*NUM_SEGS */ + /* searchRange 8 USHORT 2*(1 << LOG_SEGS) */ + /* entrySelector 10 USHORT LOG_SEGS */ + /* rangeShift 12 USHORT segCountX2 - */ + /* searchRange */ + /* */ + /* endCount 14 USHORT[NUM_SEGS] end charcode for */ + /* each segment; last */ + /* is 0xFFFF */ + /* */ + /* pad 14+NUM_SEGS*2 USHORT padding */ + /* */ + /* startCount 16+NUM_SEGS*2 USHORT[NUM_SEGS] first charcode for */ + /* each segment */ + /* */ + /* idDelta 16+NUM_SEGS*4 SHORT[NUM_SEGS] delta for each */ + /* segment */ + /* idOffset 16+NUM_SEGS*6 SHORT[NUM_SEGS] range offset for */ + /* each segment; can be */ + /* zero */ + /* */ + /* glyphIds 16+NUM_SEGS*8 USHORT[] array of glyph ID */ + /* ranges */ + /* */ + /* Character codes are modelled by a series of ordered (increasing) */ + /* intervals called segments. Each segment has start and end codes, */ + /* provided by the `startCount' and `endCount' arrays. Segments must */ + /* not overlap, and the last segment should always contain the value */ + /* 0xFFFF for `endCount'. */ + /* */ + /* The fields `searchRange', `entrySelector' and `rangeShift' are better */ + /* ignored (they are traces of over-engineering in the TrueType */ + /* specification). */ + /* */ + /* Each segment also has a signed `delta', as well as an optional offset */ + /* within the `glyphIds' table. */ + /* */ + /* If a segment's idOffset is 0, the glyph index corresponding to any */ + /* charcode within the segment is obtained by adding the value of */ + /* `idDelta' directly to the charcode, modulo 65536. */ + /* */ + /* Otherwise, a glyph index is taken from the glyph IDs sub-array for */ + /* the segment, and the value of `idDelta' is added to it. */ + /* */ + /* */ + /* Finally, note that a lot of fonts contain an invalid last segment, */ + /* where `start' and `end' are correctly set to 0xFFFF but both `delta' */ + /* and `offset' are incorrect (e.g., `opens___.ttf' which comes with */ + /* OpenOffice.org). We need special code to deal with them correctly. */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_4 + + typedef struct TT_CMap4Rec_ + { + TT_CMapRec cmap; + FT_UInt32 cur_charcode; /* current charcode */ + FT_UInt cur_gindex; /* current glyph index */ + + FT_UInt num_ranges; + FT_UInt cur_range; + FT_UInt cur_start; + FT_UInt cur_end; + FT_Int cur_delta; + FT_Byte* cur_values; + + } TT_CMap4Rec, *TT_CMap4; + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap4_init( TT_CMap4 cmap, + FT_Byte* table ) + { + FT_Byte* p; + + + cmap->cmap.data = table; + + p = table + 6; + cmap->num_ranges = FT_PEEK_USHORT( p ) >> 1; + cmap->cur_charcode = (FT_UInt32)0xFFFFFFFFUL; + cmap->cur_gindex = 0; + + return SFNT_Err_Ok; + } + + + static FT_Int + tt_cmap4_set_range( TT_CMap4 cmap, + FT_UInt range_index ) + { + FT_Byte* table = cmap->cmap.data; + FT_Byte* p; + FT_UInt num_ranges = cmap->num_ranges; + + + while ( range_index < num_ranges ) + { + FT_UInt offset; + + + p = table + 14 + range_index * 2; + cmap->cur_end = FT_PEEK_USHORT( p ); + + p += 2 + num_ranges * 2; + cmap->cur_start = FT_PEEK_USHORT( p ); + + p += num_ranges * 2; + cmap->cur_delta = FT_PEEK_SHORT( p ); + + p += num_ranges * 2; + offset = FT_PEEK_USHORT( p ); + + /* some fonts have an incorrect last segment; */ + /* we have to catch it */ + if ( range_index >= num_ranges - 1 && + cmap->cur_start == 0xFFFFU && + cmap->cur_end == 0xFFFFU ) + { + TT_Face face = (TT_Face)cmap->cmap.cmap.charmap.face; + FT_Byte* limit = face->cmap_table + face->cmap_size; + + + if ( offset && p + offset + 2 > limit ) + { + cmap->cur_delta = 1; + offset = 0; + } + } + + if ( offset != 0xFFFFU ) + { + cmap->cur_values = offset ? p + offset : NULL; + cmap->cur_range = range_index; + return 0; + } + + /* we skip empty segments */ + range_index++; + } + + return -1; + } + + + /* search the index of the charcode next to cmap->cur_charcode; */ + /* caller should call tt_cmap4_set_range with proper range */ + /* before calling this function */ + /* */ + static void + tt_cmap4_next( TT_CMap4 cmap ) + { + FT_UInt charcode; + + + if ( cmap->cur_charcode >= 0xFFFFUL ) + goto Fail; + + charcode = (FT_UInt)cmap->cur_charcode + 1; + + if ( charcode < cmap->cur_start ) + charcode = cmap->cur_start; + + for ( ;; ) + { + FT_Byte* values = cmap->cur_values; + FT_UInt end = cmap->cur_end; + FT_Int delta = cmap->cur_delta; + + + if ( charcode <= end ) + { + if ( values ) + { + FT_Byte* p = values + 2 * ( charcode - cmap->cur_start ); + + + do + { + FT_UInt gindex = FT_NEXT_USHORT( p ); + + + if ( gindex != 0 ) + { + gindex = (FT_UInt)( ( gindex + delta ) & 0xFFFFU ); + if ( gindex != 0 ) + { + cmap->cur_charcode = charcode; + cmap->cur_gindex = gindex; + return; + } + } + } while ( ++charcode <= end ); + } + else + { + do + { + FT_UInt gindex = (FT_UInt)( ( charcode + delta ) & 0xFFFFU ); + + + if ( gindex != 0 ) + { + cmap->cur_charcode = charcode; + cmap->cur_gindex = gindex; + return; + } + } while ( ++charcode <= end ); + } + } + + /* we need to find another range */ + if ( tt_cmap4_set_range( cmap, cmap->cur_range + 1 ) < 0 ) + break; + + if ( charcode < cmap->cur_start ) + charcode = cmap->cur_start; + } + + Fail: + cmap->cur_charcode = (FT_UInt32)0xFFFFFFFFUL; + cmap->cur_gindex = 0; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap4_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 2; /* skip format */ + FT_UInt length = TT_NEXT_USHORT( p ); + FT_Byte *ends, *starts, *offsets, *deltas, *glyph_ids; + FT_UInt num_segs; + FT_Error error = SFNT_Err_Ok; + + + if ( length < 16 ) + FT_INVALID_TOO_SHORT; + + /* in certain fonts, the `length' field is invalid and goes */ + /* out of bound. We try to correct this here... */ + if ( table + length > valid->limit ) + { + if ( valid->level >= FT_VALIDATE_TIGHT ) + FT_INVALID_TOO_SHORT; + + length = (FT_UInt)( valid->limit - table ); + } + + p = table + 6; + num_segs = TT_NEXT_USHORT( p ); /* read segCountX2 */ + + if ( valid->level >= FT_VALIDATE_PARANOID ) + { + /* check that we have an even value here */ + if ( num_segs & 1 ) + FT_INVALID_DATA; + } + + num_segs /= 2; + + if ( length < 16 + num_segs * 2 * 4 ) + FT_INVALID_TOO_SHORT; + + /* check the search parameters - even though we never use them */ + /* */ + if ( valid->level >= FT_VALIDATE_PARANOID ) + { + /* check the values of `searchRange', `entrySelector', `rangeShift' */ + FT_UInt search_range = TT_NEXT_USHORT( p ); + FT_UInt entry_selector = TT_NEXT_USHORT( p ); + FT_UInt range_shift = TT_NEXT_USHORT( p ); + + + if ( ( search_range | range_shift ) & 1 ) /* must be even values */ + FT_INVALID_DATA; + + search_range /= 2; + range_shift /= 2; + + /* `search range' is the greatest power of 2 that is <= num_segs */ + + if ( search_range > num_segs || + search_range * 2 < num_segs || + search_range + range_shift != num_segs || + search_range != ( 1U << entry_selector ) ) + FT_INVALID_DATA; + } + + ends = table + 14; + starts = table + 16 + num_segs * 2; + deltas = starts + num_segs * 2; + offsets = deltas + num_segs * 2; + glyph_ids = offsets + num_segs * 2; + + /* check last segment; its end count value must be 0xFFFF */ + if ( valid->level >= FT_VALIDATE_PARANOID ) + { + p = ends + ( num_segs - 1 ) * 2; + if ( TT_PEEK_USHORT( p ) != 0xFFFFU ) + FT_INVALID_DATA; + } + + { + FT_UInt start, end, offset, n; + FT_UInt last_start = 0, last_end = 0; + FT_Int delta; + FT_Byte* p_start = starts; + FT_Byte* p_end = ends; + FT_Byte* p_delta = deltas; + FT_Byte* p_offset = offsets; + + + for ( n = 0; n < num_segs; n++ ) + { + p = p_offset; + start = TT_NEXT_USHORT( p_start ); + end = TT_NEXT_USHORT( p_end ); + delta = TT_NEXT_SHORT( p_delta ); + offset = TT_NEXT_USHORT( p_offset ); + + if ( start > end ) + FT_INVALID_DATA; + + /* this test should be performed at default validation level; */ + /* unfortunately, some popular Asian fonts have overlapping */ + /* ranges in their charmaps */ + /* */ + if ( start <= last_end && n > 0 ) + { + if ( valid->level >= FT_VALIDATE_TIGHT ) + FT_INVALID_DATA; + else + { + /* allow overlapping segments, provided their start points */ + /* and end points, respectively, are in ascending order */ + /* */ + if ( last_start > start || last_end > end ) + error |= TT_CMAP_FLAG_UNSORTED; + else + error |= TT_CMAP_FLAG_OVERLAPPING; + } + } + + if ( offset && offset != 0xFFFFU ) + { + p += offset; /* start of glyph ID array */ + + /* check that we point within the glyph IDs table only */ + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + if ( p < glyph_ids || + p + ( end - start + 1 ) * 2 > table + length ) + FT_INVALID_DATA; + } + /* Some fonts handle the last segment incorrectly. In */ + /* theory, 0xFFFF might point to an ordinary glyph -- */ + /* a cmap 4 is versatile and could be used for any */ + /* encoding, not only Unicode. However, reality shows */ + /* that far too many fonts are sloppy and incorrectly */ + /* set all fields but `start' and `end' for the last */ + /* segment if it contains only a single character. */ + /* */ + /* We thus omit the test here, delaying it to the */ + /* routines which actually access the cmap. */ + else if ( n != num_segs - 1 || + !( start == 0xFFFFU && end == 0xFFFFU ) ) + { + if ( p < glyph_ids || + p + ( end - start + 1 ) * 2 > valid->limit ) + FT_INVALID_DATA; + } + + /* check glyph indices within the segment range */ + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + FT_UInt i, idx; + + + for ( i = start; i < end; i++ ) + { + idx = FT_NEXT_USHORT( p ); + if ( idx != 0 ) + { + idx = (FT_UInt)( idx + delta ) & 0xFFFFU; + + if ( idx >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + } + } + else if ( offset == 0xFFFFU ) + { + /* some fonts (erroneously?) use a range offset of 0xFFFF */ + /* to mean missing glyph in cmap table */ + /* */ + if ( valid->level >= FT_VALIDATE_PARANOID || + n != num_segs - 1 || + !( start == 0xFFFFU && end == 0xFFFFU ) ) + FT_INVALID_DATA; + } + + last_start = start; + last_end = end; + } + } + + return error; + } + + + static FT_UInt + tt_cmap4_char_map_linear( TT_CMap cmap, + FT_UInt32* pcharcode, + FT_Bool next ) + { + FT_UInt num_segs2, start, end, offset; + FT_Int delta; + FT_UInt i, num_segs; + FT_UInt32 charcode = *pcharcode; + FT_UInt gindex = 0; + FT_Byte* p; + + + p = cmap->data + 6; + num_segs2 = FT_PAD_FLOOR( TT_PEEK_USHORT( p ), 2 ); + + num_segs = num_segs2 >> 1; + + if ( !num_segs ) + return 0; + + if ( next ) + charcode++; + + /* linear search */ + for ( ; charcode <= 0xFFFFU; charcode++ ) + { + FT_Byte* q; + + + p = cmap->data + 14; /* ends table */ + q = cmap->data + 16 + num_segs2; /* starts table */ + + for ( i = 0; i < num_segs; i++ ) + { + end = TT_NEXT_USHORT( p ); + start = TT_NEXT_USHORT( q ); + + if ( charcode >= start && charcode <= end ) + { + p = q - 2 + num_segs2; + delta = TT_PEEK_SHORT( p ); + p += num_segs2; + offset = TT_PEEK_USHORT( p ); + + /* some fonts have an incorrect last segment; */ + /* we have to catch it */ + if ( i >= num_segs - 1 && + start == 0xFFFFU && end == 0xFFFFU ) + { + TT_Face face = (TT_Face)cmap->cmap.charmap.face; + FT_Byte* limit = face->cmap_table + face->cmap_size; + + + if ( offset && p + offset + 2 > limit ) + { + delta = 1; + offset = 0; + } + } + + if ( offset == 0xFFFFU ) + continue; + + if ( offset ) + { + p += offset + ( charcode - start ) * 2; + gindex = TT_PEEK_USHORT( p ); + if ( gindex != 0 ) + gindex = (FT_UInt)( gindex + delta ) & 0xFFFFU; + } + else + gindex = (FT_UInt)( charcode + delta ) & 0xFFFFU; + + break; + } + } + + if ( !next || gindex ) + break; + } + + if ( next && gindex ) + *pcharcode = charcode; + + return gindex; + } + + + static FT_UInt + tt_cmap4_char_map_binary( TT_CMap cmap, + FT_UInt32* pcharcode, + FT_Bool next ) + { + FT_UInt num_segs2, start, end, offset; + FT_Int delta; + FT_UInt max, min, mid, num_segs; + FT_UInt charcode = (FT_UInt)*pcharcode; + FT_UInt gindex = 0; + FT_Byte* p; + + + p = cmap->data + 6; + num_segs2 = FT_PAD_FLOOR( TT_PEEK_USHORT( p ), 2 ); + + if ( !num_segs2 ) + return 0; + + num_segs = num_segs2 >> 1; + + /* make compiler happy */ + mid = num_segs; + end = 0xFFFFU; + + if ( next ) + charcode++; + + min = 0; + max = num_segs; + + /* binary search */ + while ( min < max ) + { + mid = ( min + max ) >> 1; + p = cmap->data + 14 + mid * 2; + end = TT_PEEK_USHORT( p ); + p += 2 + num_segs2; + start = TT_PEEK_USHORT( p ); + + if ( charcode < start ) + max = mid; + else if ( charcode > end ) + min = mid + 1; + else + { + p += num_segs2; + delta = TT_PEEK_SHORT( p ); + p += num_segs2; + offset = TT_PEEK_USHORT( p ); + + /* some fonts have an incorrect last segment; */ + /* we have to catch it */ + if ( mid >= num_segs - 1 && + start == 0xFFFFU && end == 0xFFFFU ) + { + TT_Face face = (TT_Face)cmap->cmap.charmap.face; + FT_Byte* limit = face->cmap_table + face->cmap_size; + + + if ( offset && p + offset + 2 > limit ) + { + delta = 1; + offset = 0; + } + } + + /* search the first segment containing `charcode' */ + if ( cmap->flags & TT_CMAP_FLAG_OVERLAPPING ) + { + FT_UInt i; + + + /* call the current segment `max' */ + max = mid; + + if ( offset == 0xFFFFU ) + mid = max + 1; + + /* search in segments before the current segment */ + for ( i = max ; i > 0; i-- ) + { + FT_UInt prev_end; + FT_Byte* old_p; + + + old_p = p; + p = cmap->data + 14 + ( i - 1 ) * 2; + prev_end = TT_PEEK_USHORT( p ); + + if ( charcode > prev_end ) + { + p = old_p; + break; + } + + end = prev_end; + p += 2 + num_segs2; + start = TT_PEEK_USHORT( p ); + p += num_segs2; + delta = TT_PEEK_SHORT( p ); + p += num_segs2; + offset = TT_PEEK_USHORT( p ); + + if ( offset != 0xFFFFU ) + mid = i - 1; + } + + /* no luck */ + if ( mid == max + 1 ) + { + if ( i != max ) + { + p = cmap->data + 14 + max * 2; + end = TT_PEEK_USHORT( p ); + p += 2 + num_segs2; + start = TT_PEEK_USHORT( p ); + p += num_segs2; + delta = TT_PEEK_SHORT( p ); + p += num_segs2; + offset = TT_PEEK_USHORT( p ); + } + + mid = max; + + /* search in segments after the current segment */ + for ( i = max + 1; i < num_segs; i++ ) + { + FT_UInt next_end, next_start; + + + p = cmap->data + 14 + i * 2; + next_end = TT_PEEK_USHORT( p ); + p += 2 + num_segs2; + next_start = TT_PEEK_USHORT( p ); + + if ( charcode < next_start ) + break; + + end = next_end; + start = next_start; + p += num_segs2; + delta = TT_PEEK_SHORT( p ); + p += num_segs2; + offset = TT_PEEK_USHORT( p ); + + if ( offset != 0xFFFFU ) + mid = i; + } + i--; + + /* still no luck */ + if ( mid == max ) + { + mid = i; + + break; + } + } + + /* end, start, delta, and offset are for the i'th segment */ + if ( mid != i ) + { + p = cmap->data + 14 + mid * 2; + end = TT_PEEK_USHORT( p ); + p += 2 + num_segs2; + start = TT_PEEK_USHORT( p ); + p += num_segs2; + delta = TT_PEEK_SHORT( p ); + p += num_segs2; + offset = TT_PEEK_USHORT( p ); + } + } + else + { + if ( offset == 0xFFFFU ) + break; + } + + if ( offset ) + { + p += offset + ( charcode - start ) * 2; + gindex = TT_PEEK_USHORT( p ); + if ( gindex != 0 ) + gindex = (FT_UInt)( gindex + delta ) & 0xFFFFU; + } + else + gindex = (FT_UInt)( charcode + delta ) & 0xFFFFU; + + break; + } + } + + if ( next ) + { + TT_CMap4 cmap4 = (TT_CMap4)cmap; + + + /* if `charcode' is not in any segment, then `mid' is */ + /* the segment nearest to `charcode' */ + /* */ + + if ( charcode > end ) + { + mid++; + if ( mid == num_segs ) + return 0; + } + + if ( tt_cmap4_set_range( cmap4, mid ) ) + { + if ( gindex ) + *pcharcode = charcode; + } + else + { + cmap4->cur_charcode = charcode; + + if ( gindex ) + cmap4->cur_gindex = gindex; + else + { + cmap4->cur_charcode = charcode; + tt_cmap4_next( cmap4 ); + gindex = cmap4->cur_gindex; + } + + if ( gindex ) + *pcharcode = cmap4->cur_charcode; + } + } + + return gindex; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap4_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + if ( char_code >= 0x10000UL ) + return 0; + + if ( cmap->flags & TT_CMAP_FLAG_UNSORTED ) + return tt_cmap4_char_map_linear( cmap, &char_code, 0 ); + else + return tt_cmap4_char_map_binary( cmap, &char_code, 0 ); + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap4_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt gindex; + + + if ( *pchar_code >= 0xFFFFU ) + return 0; + + if ( cmap->flags & TT_CMAP_FLAG_UNSORTED ) + gindex = tt_cmap4_char_map_linear( cmap, pchar_code, 1 ); + else + { + TT_CMap4 cmap4 = (TT_CMap4)cmap; + + + /* no need to search */ + if ( *pchar_code == cmap4->cur_charcode ) + { + tt_cmap4_next( cmap4 ); + gindex = cmap4->cur_gindex; + if ( gindex ) + *pchar_code = cmap4->cur_charcode; + } + else + gindex = tt_cmap4_char_map_binary( cmap, pchar_code, 1 ); + } + + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap4_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 4; + + + cmap_info->format = 4; + cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap4_class_rec, + sizeof ( TT_CMap4Rec ), + (FT_CMap_InitFunc) tt_cmap4_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap4_char_index, + (FT_CMap_CharNextFunc) tt_cmap4_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 4, + (TT_CMap_ValidateFunc) tt_cmap4_validate, + (TT_CMap_Info_GetFunc) tt_cmap4_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_4 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 6 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 4 */ + /* length 2 USHORT table length in bytes */ + /* language 4 USHORT Mac language code */ + /* */ + /* first 6 USHORT first segment code */ + /* count 8 USHORT segment size in chars */ + /* glyphIds 10 USHORT[count] glyph IDs */ + /* */ + /* A very simplified segment mapping. */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_6 + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap6_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p; + FT_UInt length, count; + + + if ( table + 10 > valid->limit ) + FT_INVALID_TOO_SHORT; + + p = table + 2; + length = TT_NEXT_USHORT( p ); + + p = table + 8; /* skip language and start index */ + count = TT_NEXT_USHORT( p ); + + if ( table + length > valid->limit || length < 10 + count * 2 ) + FT_INVALID_TOO_SHORT; + + /* check glyph indices */ + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + FT_UInt gindex; + + + for ( ; count > 0; count-- ) + { + gindex = TT_NEXT_USHORT( p ); + if ( gindex >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap6_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_Byte* table = cmap->data; + FT_UInt result = 0; + FT_Byte* p = table + 6; + FT_UInt start = TT_NEXT_USHORT( p ); + FT_UInt count = TT_NEXT_USHORT( p ); + FT_UInt idx = (FT_UInt)( char_code - start ); + + + if ( idx < count ) + { + p += 2 * idx; + result = TT_PEEK_USHORT( p ); + } + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap6_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_Byte* table = cmap->data; + FT_UInt32 result = 0; + FT_UInt32 char_code = *pchar_code + 1; + FT_UInt gindex = 0; + + FT_Byte* p = table + 6; + FT_UInt start = TT_NEXT_USHORT( p ); + FT_UInt count = TT_NEXT_USHORT( p ); + FT_UInt idx; + + + if ( char_code >= 0x10000UL ) + goto Exit; + + if ( char_code < start ) + char_code = start; + + idx = (FT_UInt)( char_code - start ); + p += 2 * idx; + + for ( ; idx < count; idx++ ) + { + gindex = TT_NEXT_USHORT( p ); + if ( gindex != 0 ) + { + result = char_code; + break; + } + char_code++; + } + + Exit: + *pchar_code = result; + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap6_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 4; + + + cmap_info->format = 6; + cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap6_class_rec, + sizeof ( TT_CMapRec ), + + (FT_CMap_InitFunc) tt_cmap_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap6_char_index, + (FT_CMap_CharNextFunc) tt_cmap6_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 6, + (TT_CMap_ValidateFunc) tt_cmap6_validate, + (TT_CMap_Info_GetFunc) tt_cmap6_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_6 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 8 *****/ + /***** *****/ + /***** It is hard to completely understand what the OpenType spec *****/ + /***** says about this format, but here is my conclusion. *****/ + /***** *****/ + /***** The purpose of this format is to easily map UTF-16 text to *****/ + /***** glyph indices. Basically, the `char_code' must be in one of *****/ + /***** the following formats: *****/ + /***** *****/ + /***** - A 16-bit value that isn't part of the Unicode Surrogates *****/ + /***** Area (i.e. U+D800-U+DFFF). *****/ + /***** *****/ + /***** - A 32-bit value, made of two surrogate values, i.e.. if *****/ + /***** `char_code = (char_hi << 16) | char_lo', then both *****/ + /***** `char_hi' and `char_lo' must be in the Surrogates Area. *****/ + /***** Area. *****/ + /***** *****/ + /***** The `is32' table embedded in the charmap indicates whether a *****/ + /***** given 16-bit value is in the surrogates area or not. *****/ + /***** *****/ + /***** So, for any given `char_code', we can assert the following: *****/ + /***** *****/ + /***** If `char_hi == 0' then we must have `is32[char_lo] == 0'. *****/ + /***** *****/ + /***** If `char_hi != 0' then we must have both *****/ + /***** `is32[char_hi] != 0' and `is32[char_lo] != 0'. *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 8 */ + /* reserved 2 USHORT reserved */ + /* length 4 ULONG length in bytes */ + /* language 8 ULONG Mac language code */ + /* is32 12 BYTE[8192] 32-bitness bitmap */ + /* count 8204 ULONG number of groups */ + /* */ + /* This header is followed by `count' groups of the following format: */ + /* */ + /* start 0 ULONG first charcode */ + /* end 4 ULONG last charcode */ + /* startId 8 ULONG start glyph ID for the group */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_8 + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap8_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 4; + FT_Byte* is32; + FT_UInt32 length; + FT_UInt32 num_groups; + + + if ( table + 16 + 8192 > valid->limit ) + FT_INVALID_TOO_SHORT; + + length = TT_NEXT_ULONG( p ); + if ( length > (FT_UInt32)( valid->limit - table ) || length < 8192 + 16 ) + FT_INVALID_TOO_SHORT; + + is32 = table + 12; + p = is32 + 8192; /* skip `is32' array */ + num_groups = TT_NEXT_ULONG( p ); + + if ( p + num_groups * 12 > valid->limit ) + FT_INVALID_TOO_SHORT; + + /* check groups, they must be in increasing order */ + { + FT_UInt32 n, start, end, start_id, count, last = 0; + + + for ( n = 0; n < num_groups; n++ ) + { + FT_UInt hi, lo; + + + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + start_id = TT_NEXT_ULONG( p ); + + if ( start > end ) + FT_INVALID_DATA; + + if ( n > 0 && start <= last ) + FT_INVALID_DATA; + + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + if ( start_id + end - start >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + + count = (FT_UInt32)( end - start + 1 ); + + if ( start & ~0xFFFFU ) + { + /* start_hi != 0; check that is32[i] is 1 for each i in */ + /* the `hi' and `lo' of the range [start..end] */ + for ( ; count > 0; count--, start++ ) + { + hi = (FT_UInt)( start >> 16 ); + lo = (FT_UInt)( start & 0xFFFFU ); + + if ( (is32[hi >> 3] & ( 0x80 >> ( hi & 7 ) ) ) == 0 ) + FT_INVALID_DATA; + + if ( (is32[lo >> 3] & ( 0x80 >> ( lo & 7 ) ) ) == 0 ) + FT_INVALID_DATA; + } + } + else + { + /* start_hi == 0; check that is32[i] is 0 for each i in */ + /* the range [start..end] */ + + /* end_hi cannot be != 0! */ + if ( end & ~0xFFFFU ) + FT_INVALID_DATA; + + for ( ; count > 0; count--, start++ ) + { + lo = (FT_UInt)( start & 0xFFFFU ); + + if ( (is32[lo >> 3] & ( 0x80 >> ( lo & 7 ) ) ) != 0 ) + FT_INVALID_DATA; + } + } + } + + last = end; + } + } + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap8_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_Byte* table = cmap->data; + FT_UInt result = 0; + FT_Byte* p = table + 8204; + FT_UInt32 num_groups = TT_NEXT_ULONG( p ); + FT_UInt32 start, end, start_id; + + + for ( ; num_groups > 0; num_groups-- ) + { + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + start_id = TT_NEXT_ULONG( p ); + + if ( char_code < start ) + break; + + if ( char_code <= end ) + { + result = (FT_UInt)( start_id + char_code - start ); + break; + } + } + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap8_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt32 result = 0; + FT_UInt32 char_code = *pchar_code + 1; + FT_UInt gindex = 0; + FT_Byte* table = cmap->data; + FT_Byte* p = table + 8204; + FT_UInt32 num_groups = TT_NEXT_ULONG( p ); + FT_UInt32 start, end, start_id; + + + p = table + 8208; + + for ( ; num_groups > 0; num_groups-- ) + { + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + start_id = TT_NEXT_ULONG( p ); + + if ( char_code < start ) + char_code = start; + + if ( char_code <= end ) + { + gindex = (FT_UInt)( char_code - start + start_id ); + if ( gindex != 0 ) + { + result = char_code; + goto Exit; + } + } + } + + Exit: + *pchar_code = result; + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap8_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 8; + + + cmap_info->format = 8; + cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap8_class_rec, + sizeof ( TT_CMapRec ), + + (FT_CMap_InitFunc) tt_cmap_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap8_char_index, + (FT_CMap_CharNextFunc) tt_cmap8_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 8, + (TT_CMap_ValidateFunc) tt_cmap8_validate, + (TT_CMap_Info_GetFunc) tt_cmap8_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_8 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 10 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 10 */ + /* reserved 2 USHORT reserved */ + /* length 4 ULONG length in bytes */ + /* language 8 ULONG Mac language code */ + /* */ + /* start 12 ULONG first char in range */ + /* count 16 ULONG number of chars in range */ + /* glyphIds 20 USHORT[count] glyph indices covered */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_10 + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap10_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 4; + FT_ULong length, count; + + + if ( table + 20 > valid->limit ) + FT_INVALID_TOO_SHORT; + + length = TT_NEXT_ULONG( p ); + p = table + 16; + count = TT_NEXT_ULONG( p ); + + if ( length > (FT_ULong)( valid->limit - table ) || + length < 20 + count * 2 ) + FT_INVALID_TOO_SHORT; + + /* check glyph indices */ + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + FT_UInt gindex; + + + for ( ; count > 0; count-- ) + { + gindex = TT_NEXT_USHORT( p ); + if ( gindex >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap10_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_Byte* table = cmap->data; + FT_UInt result = 0; + FT_Byte* p = table + 12; + FT_UInt32 start = TT_NEXT_ULONG( p ); + FT_UInt32 count = TT_NEXT_ULONG( p ); + FT_UInt32 idx = (FT_ULong)( char_code - start ); + + + if ( idx < count ) + { + p += 2 * idx; + result = TT_PEEK_USHORT( p ); + } + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap10_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_Byte* table = cmap->data; + FT_UInt32 char_code = *pchar_code + 1; + FT_UInt gindex = 0; + FT_Byte* p = table + 12; + FT_UInt32 start = TT_NEXT_ULONG( p ); + FT_UInt32 count = TT_NEXT_ULONG( p ); + FT_UInt32 idx; + + + if ( char_code < start ) + char_code = start; + + idx = (FT_UInt32)( char_code - start ); + p += 2 * idx; + + for ( ; idx < count; idx++ ) + { + gindex = TT_NEXT_USHORT( p ); + if ( gindex != 0 ) + break; + char_code++; + } + + *pchar_code = char_code; + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap10_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 8; + + + cmap_info->format = 10; + cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap10_class_rec, + sizeof ( TT_CMapRec ), + + (FT_CMap_InitFunc) tt_cmap_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap10_char_index, + (FT_CMap_CharNextFunc) tt_cmap10_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 10, + (TT_CMap_ValidateFunc) tt_cmap10_validate, + (TT_CMap_Info_GetFunc) tt_cmap10_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_10 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 12 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 12 */ + /* reserved 2 USHORT reserved */ + /* length 4 ULONG length in bytes */ + /* language 8 ULONG Mac language code */ + /* count 12 ULONG number of groups */ + /* 16 */ + /* */ + /* This header is followed by `count' groups of the following format: */ + /* */ + /* start 0 ULONG first charcode */ + /* end 4 ULONG last charcode */ + /* startId 8 ULONG start glyph ID for the group */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_12 + + typedef struct TT_CMap12Rec_ + { + TT_CMapRec cmap; + FT_Bool valid; + FT_ULong cur_charcode; + FT_UInt cur_gindex; + FT_ULong cur_group; + FT_ULong num_groups; + + } TT_CMap12Rec, *TT_CMap12; + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap12_init( TT_CMap12 cmap, + FT_Byte* table ) + { + cmap->cmap.data = table; + + table += 12; + cmap->num_groups = FT_PEEK_ULONG( table ); + + cmap->valid = 0; + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap12_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p; + FT_ULong length; + FT_ULong num_groups; + + + if ( table + 16 > valid->limit ) + FT_INVALID_TOO_SHORT; + + p = table + 4; + length = TT_NEXT_ULONG( p ); + + p = table + 12; + num_groups = TT_NEXT_ULONG( p ); + + if ( length > (FT_ULong)( valid->limit - table ) || + length < 16 + 12 * num_groups ) + FT_INVALID_TOO_SHORT; + + /* check groups, they must be in increasing order */ + { + FT_ULong n, start, end, start_id, last = 0; + + + for ( n = 0; n < num_groups; n++ ) + { + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + start_id = TT_NEXT_ULONG( p ); + + if ( start > end ) + FT_INVALID_DATA; + + if ( n > 0 && start <= last ) + FT_INVALID_DATA; + + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + if ( start_id + end - start >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + + last = end; + } + } + + return SFNT_Err_Ok; + } + + + /* search the index of the charcode next to cmap->cur_charcode */ + /* cmap->cur_group should be set up properly by caller */ + /* */ + static void + tt_cmap12_next( TT_CMap12 cmap ) + { + FT_Byte* p; + FT_ULong start, end, start_id, char_code; + FT_ULong n; + FT_UInt gindex; + + + if ( cmap->cur_charcode >= 0xFFFFFFFFUL ) + goto Fail; + + char_code = cmap->cur_charcode + 1; + + n = cmap->cur_group; + + for ( n = cmap->cur_group; n < cmap->num_groups; n++ ) + { + p = cmap->cmap.data + 16 + 12 * n; + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + start_id = TT_PEEK_ULONG( p ); + + if ( char_code < start ) + char_code = start; + + for ( ; char_code <= end; char_code++ ) + { + gindex = (FT_UInt)( start_id + char_code - start ); + + if ( gindex ) + { + cmap->cur_charcode = char_code;; + cmap->cur_gindex = gindex; + cmap->cur_group = n; + + return; + } + } + } + + Fail: + cmap->valid = 0; + } + + + static FT_UInt + tt_cmap12_char_map_binary( TT_CMap cmap, + FT_UInt32* pchar_code, + FT_Bool next ) + { + FT_UInt gindex = 0; + FT_Byte* p = cmap->data + 12; + FT_UInt32 num_groups = TT_PEEK_ULONG( p ); + FT_UInt32 char_code = *pchar_code; + FT_UInt32 start, end, start_id; + FT_UInt32 max, min, mid; + + + if ( !num_groups ) + return 0; + + /* make compiler happy */ + mid = num_groups; + end = 0xFFFFFFFFUL; + + if ( next ) + char_code++; + + min = 0; + max = num_groups; + + /* binary search */ + while ( min < max ) + { + mid = ( min + max ) >> 1; + p = cmap->data + 16 + 12 * mid; + + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + + if ( char_code < start ) + max = mid; + else if ( char_code > end ) + min = mid + 1; + else + { + start_id = TT_PEEK_ULONG( p ); + gindex = (FT_UInt)( start_id + char_code - start ); + + break; + } + } + + if ( next ) + { + TT_CMap12 cmap12 = (TT_CMap12)cmap; + + + /* if `char_code' is not in any group, then `mid' is */ + /* the group nearest to `char_code' */ + /* */ + + if ( char_code > end ) + { + mid++; + if ( mid == num_groups ) + return 0; + } + + cmap12->valid = 1; + cmap12->cur_charcode = char_code; + cmap12->cur_group = mid; + + if ( !gindex ) + { + tt_cmap12_next( cmap12 ); + + if ( cmap12->valid ) + gindex = cmap12->cur_gindex; + } + else + cmap12->cur_gindex = gindex; + + if ( gindex ) + *pchar_code = cmap12->cur_charcode; + } + + return gindex; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap12_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + return tt_cmap12_char_map_binary( cmap, &char_code, 0 ); + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap12_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + TT_CMap12 cmap12 = (TT_CMap12)cmap; + FT_ULong gindex; + + + if ( cmap12->cur_charcode >= 0xFFFFFFFFUL ) + return 0; + + /* no need to search */ + if ( cmap12->valid && cmap12->cur_charcode == *pchar_code ) + { + tt_cmap12_next( cmap12 ); + if ( cmap12->valid ) + { + gindex = cmap12->cur_gindex; + + /* XXX: check cur_charcode overflow is expected */ + if ( gindex ) + *pchar_code = (FT_UInt32)cmap12->cur_charcode; + } + else + gindex = 0; + } + else + gindex = tt_cmap12_char_map_binary( cmap, pchar_code, 1 ); + + /* XXX: check gindex overflow is expected */ + return (FT_UInt32)gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap12_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 8; + + + cmap_info->format = 12; + cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap12_class_rec, + sizeof ( TT_CMap12Rec ), + + (FT_CMap_InitFunc) tt_cmap12_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap12_char_index, + (FT_CMap_CharNextFunc) tt_cmap12_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 12, + (TT_CMap_ValidateFunc) tt_cmap12_validate, + (TT_CMap_Info_GetFunc) tt_cmap12_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_12 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 13 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 13 */ + /* reserved 2 USHORT reserved */ + /* length 4 ULONG length in bytes */ + /* language 8 ULONG Mac language code */ + /* count 12 ULONG number of groups */ + /* 16 */ + /* */ + /* This header is followed by `count' groups of the following format: */ + /* */ + /* start 0 ULONG first charcode */ + /* end 4 ULONG last charcode */ + /* glyphId 8 ULONG glyph ID for the whole group */ + /* */ + +#ifdef TT_CONFIG_CMAP_FORMAT_13 + + typedef struct TT_CMap13Rec_ + { + TT_CMapRec cmap; + FT_Bool valid; + FT_ULong cur_charcode; + FT_UInt cur_gindex; + FT_ULong cur_group; + FT_ULong num_groups; + + } TT_CMap13Rec, *TT_CMap13; + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap13_init( TT_CMap13 cmap, + FT_Byte* table ) + { + cmap->cmap.data = table; + + table += 12; + cmap->num_groups = FT_PEEK_ULONG( table ); + + cmap->valid = 0; + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap13_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p; + FT_ULong length; + FT_ULong num_groups; + + + if ( table + 16 > valid->limit ) + FT_INVALID_TOO_SHORT; + + p = table + 4; + length = TT_NEXT_ULONG( p ); + + p = table + 12; + num_groups = TT_NEXT_ULONG( p ); + + if ( length > (FT_ULong)( valid->limit - table ) || + length < 16 + 12 * num_groups ) + FT_INVALID_TOO_SHORT; + + /* check groups, they must be in increasing order */ + { + FT_ULong n, start, end, glyph_id, last = 0; + + + for ( n = 0; n < num_groups; n++ ) + { + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + glyph_id = TT_NEXT_ULONG( p ); + + if ( start > end ) + FT_INVALID_DATA; + + if ( n > 0 && start <= last ) + FT_INVALID_DATA; + + if ( valid->level >= FT_VALIDATE_TIGHT ) + { + if ( glyph_id >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + + last = end; + } + } + + return SFNT_Err_Ok; + } + + + /* search the index of the charcode next to cmap->cur_charcode */ + /* cmap->cur_group should be set up properly by caller */ + /* */ + static void + tt_cmap13_next( TT_CMap13 cmap ) + { + FT_Byte* p; + FT_ULong start, end, glyph_id, char_code; + FT_ULong n; + FT_UInt gindex; + + + if ( cmap->cur_charcode >= 0xFFFFFFFFUL ) + goto Fail; + + char_code = cmap->cur_charcode + 1; + + n = cmap->cur_group; + + for ( n = cmap->cur_group; n < cmap->num_groups; n++ ) + { + p = cmap->cmap.data + 16 + 12 * n; + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + glyph_id = TT_PEEK_ULONG( p ); + + if ( char_code < start ) + char_code = start; + + if ( char_code <= end ) + { + gindex = (FT_UInt)glyph_id; + + if ( gindex ) + { + cmap->cur_charcode = char_code;; + cmap->cur_gindex = gindex; + cmap->cur_group = n; + + return; + } + } + } + + Fail: + cmap->valid = 0; + } + + + static FT_UInt + tt_cmap13_char_map_binary( TT_CMap cmap, + FT_UInt32* pchar_code, + FT_Bool next ) + { + FT_UInt gindex = 0; + FT_Byte* p = cmap->data + 12; + FT_UInt32 num_groups = TT_PEEK_ULONG( p ); + FT_UInt32 char_code = *pchar_code; + FT_UInt32 start, end; + FT_UInt32 max, min, mid; + + + if ( !num_groups ) + return 0; + + /* make compiler happy */ + mid = num_groups; + end = 0xFFFFFFFFUL; + + if ( next ) + char_code++; + + min = 0; + max = num_groups; + + /* binary search */ + while ( min < max ) + { + mid = ( min + max ) >> 1; + p = cmap->data + 16 + 12 * mid; + + start = TT_NEXT_ULONG( p ); + end = TT_NEXT_ULONG( p ); + + if ( char_code < start ) + max = mid; + else if ( char_code > end ) + min = mid + 1; + else + { + gindex = (FT_UInt)TT_PEEK_ULONG( p ); + + break; + } + } + + if ( next ) + { + TT_CMap13 cmap13 = (TT_CMap13)cmap; + + + /* if `char_code' is not in any group, then `mid' is */ + /* the group nearest to `char_code' */ + /* */ + + if ( char_code > end ) + { + mid++; + if ( mid == num_groups ) + return 0; + } + + cmap13->valid = 1; + cmap13->cur_charcode = char_code; + cmap13->cur_group = mid; + + if ( !gindex ) + { + tt_cmap13_next( cmap13 ); + + if ( cmap13->valid ) + gindex = cmap13->cur_gindex; + } + else + cmap13->cur_gindex = gindex; + + if ( gindex ) + *pchar_code = cmap13->cur_charcode; + } + + return gindex; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap13_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + return tt_cmap13_char_map_binary( cmap, &char_code, 0 ); + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap13_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + TT_CMap13 cmap13 = (TT_CMap13)cmap; + FT_UInt gindex; + + + if ( cmap13->cur_charcode >= 0xFFFFFFFFUL ) + return 0; + + /* no need to search */ + if ( cmap13->valid && cmap13->cur_charcode == *pchar_code ) + { + tt_cmap13_next( cmap13 ); + if ( cmap13->valid ) + { + gindex = cmap13->cur_gindex; + if ( gindex ) + *pchar_code = cmap13->cur_charcode; + } + else + gindex = 0; + } + else + gindex = tt_cmap13_char_map_binary( cmap, pchar_code, 1 ); + + return gindex; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap13_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_Byte* p = cmap->data + 8; + + + cmap_info->format = 13; + cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p ); + + return SFNT_Err_Ok; + } + + + FT_DEFINE_TT_CMAP(tt_cmap13_class_rec, + sizeof ( TT_CMap13Rec ), + + (FT_CMap_InitFunc) tt_cmap13_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)tt_cmap13_char_index, + (FT_CMap_CharNextFunc) tt_cmap13_char_next, + + NULL, NULL, NULL, NULL, NULL + , + 13, + (TT_CMap_ValidateFunc) tt_cmap13_validate, + (TT_CMap_Info_GetFunc) tt_cmap13_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_13 */ + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** FORMAT 14 *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* TABLE OVERVIEW */ + /* -------------- */ + /* */ + /* NAME OFFSET TYPE DESCRIPTION */ + /* */ + /* format 0 USHORT must be 14 */ + /* length 2 ULONG table length in bytes */ + /* numSelector 6 ULONG number of variation sel. records */ + /* */ + /* Followed by numSelector records, each of which looks like */ + /* */ + /* varSelector 0 UINT24 Unicode codepoint of sel. */ + /* defaultOff 3 ULONG offset to a default UVS table */ + /* describing any variants to be found in */ + /* the normal Unicode subtable. */ + /* nonDefOff 7 ULONG offset to a non-default UVS table */ + /* describing any variants not in the */ + /* standard cmap, with GIDs here */ + /* (either offset may be 0 NULL) */ + /* */ + /* Selectors are sorted by code point. */ + /* */ + /* A default Unicode Variation Selector (UVS) subtable is just a list of */ + /* ranges of code points which are to be found in the standard cmap. No */ + /* glyph IDs (GIDs) here. */ + /* */ + /* numRanges 0 ULONG number of ranges following */ + /* */ + /* A range looks like */ + /* */ + /* uniStart 0 UINT24 code point of the first character in */ + /* this range */ + /* additionalCnt 3 UBYTE count of additional characters in this */ + /* range (zero means a range of a single */ + /* character) */ + /* */ + /* Ranges are sorted by `uniStart'. */ + /* */ + /* A non-default Unicode Variation Selector (UVS) subtable is a list of */ + /* mappings from codepoint to GID. */ + /* */ + /* numMappings 0 ULONG number of mappings */ + /* */ + /* A range looks like */ + /* */ + /* uniStart 0 UINT24 code point of the first character in */ + /* this range */ + /* GID 3 USHORT and its GID */ + /* */ + /* Ranges are sorted by `uniStart'. */ + +#ifdef TT_CONFIG_CMAP_FORMAT_14 + + typedef struct TT_CMap14Rec_ + { + TT_CMapRec cmap; + FT_ULong num_selectors; + + /* This array is used to store the results of various + * cmap 14 query functions. The data is overwritten + * on each call to these functions. + */ + FT_UInt32 max_results; + FT_UInt32* results; + FT_Memory memory; + + } TT_CMap14Rec, *TT_CMap14; + + + FT_CALLBACK_DEF( void ) + tt_cmap14_done( TT_CMap14 cmap ) + { + FT_Memory memory = cmap->memory; + + + cmap->max_results = 0; + if ( memory != NULL && cmap->results != NULL ) + FT_FREE( cmap->results ); + } + + + static FT_Error + tt_cmap14_ensure( TT_CMap14 cmap, + FT_UInt32 num_results, + FT_Memory memory ) + { + FT_UInt32 old_max = cmap->max_results; + FT_Error error = SFNT_Err_Ok; + + + if ( num_results > cmap->max_results ) + { + cmap->memory = memory; + + if ( FT_QRENEW_ARRAY( cmap->results, old_max, num_results ) ) + return error; + + cmap->max_results = num_results; + } + + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap14_init( TT_CMap14 cmap, + FT_Byte* table ) + { + cmap->cmap.data = table; + + table += 6; + cmap->num_selectors = FT_PEEK_ULONG( table ); + cmap->max_results = 0; + cmap->results = NULL; + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap14_validate( FT_Byte* table, + FT_Validator valid ) + { + FT_Byte* p = table + 2; + FT_ULong length = TT_NEXT_ULONG( p ); + FT_ULong num_selectors = TT_NEXT_ULONG( p ); + + + if ( length > (FT_ULong)( valid->limit - table ) || + length < 10 + 11 * num_selectors ) + FT_INVALID_TOO_SHORT; + + /* check selectors, they must be in increasing order */ + { + /* we start lastVarSel at 1 because a variant selector value of 0 + * isn't valid. + */ + FT_ULong n, lastVarSel = 1; + + + for ( n = 0; n < num_selectors; n++ ) + { + FT_ULong varSel = TT_NEXT_UINT24( p ); + FT_ULong defOff = TT_NEXT_ULONG( p ); + FT_ULong nondefOff = TT_NEXT_ULONG( p ); + + + if ( defOff >= length || nondefOff >= length ) + FT_INVALID_TOO_SHORT; + + if ( varSel < lastVarSel ) + FT_INVALID_DATA; + + lastVarSel = varSel + 1; + + /* check the default table (these glyphs should be reached */ + /* through the normal Unicode cmap, no GIDs, just check order) */ + if ( defOff != 0 ) + { + FT_Byte* defp = table + defOff; + FT_ULong numRanges = TT_NEXT_ULONG( defp ); + FT_ULong i; + FT_ULong lastBase = 0; + + + if ( defp + numRanges * 4 > valid->limit ) + FT_INVALID_TOO_SHORT; + + for ( i = 0; i < numRanges; ++i ) + { + FT_ULong base = TT_NEXT_UINT24( defp ); + FT_ULong cnt = FT_NEXT_BYTE( defp ); + + + if ( base + cnt >= 0x110000UL ) /* end of Unicode */ + FT_INVALID_DATA; + + if ( base < lastBase ) + FT_INVALID_DATA; + + lastBase = base + cnt + 1U; + } + } + + /* and the non-default table (these glyphs are specified here) */ + if ( nondefOff != 0 ) + { + FT_Byte* ndp = table + nondefOff; + FT_ULong numMappings = TT_NEXT_ULONG( ndp ); + FT_ULong i, lastUni = 0; + + + if ( numMappings * 4 > (FT_ULong)( valid->limit - ndp ) ) + FT_INVALID_TOO_SHORT; + + for ( i = 0; i < numMappings; ++i ) + { + FT_ULong uni = TT_NEXT_UINT24( ndp ); + FT_ULong gid = TT_NEXT_USHORT( ndp ); + + + if ( uni >= 0x110000UL ) /* end of Unicode */ + FT_INVALID_DATA; + + if ( uni < lastUni ) + FT_INVALID_DATA; + + lastUni = uni + 1U; + + if ( valid->level >= FT_VALIDATE_TIGHT && + gid >= TT_VALID_GLYPH_COUNT( valid ) ) + FT_INVALID_GLYPH_ID; + } + } + } + } + + return SFNT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap14_char_index( TT_CMap cmap, + FT_UInt32 char_code ) + { + FT_UNUSED( cmap ); + FT_UNUSED( char_code ); + + /* This can't happen */ + return 0; + } + + + FT_CALLBACK_DEF( FT_UInt32 ) + tt_cmap14_char_next( TT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_UNUSED( cmap ); + + /* This can't happen */ + *pchar_code = 0; + return 0; + } + + + FT_CALLBACK_DEF( FT_Error ) + tt_cmap14_get_info( TT_CMap cmap, + TT_CMapInfo *cmap_info ) + { + FT_UNUSED( cmap ); + + cmap_info->format = 14; + /* subtable 14 does not define a language field */ + cmap_info->language = 0xFFFFFFFFUL; + + return SFNT_Err_Ok; + } + + + static FT_UInt + tt_cmap14_char_map_def_binary( FT_Byte *base, + FT_UInt32 char_code ) + { + FT_UInt32 numRanges = TT_PEEK_ULONG( base ); + FT_UInt32 max, min; + + + min = 0; + max = numRanges; + + base += 4; + + /* binary search */ + while ( min < max ) + { + FT_UInt32 mid = ( min + max ) >> 1; + FT_Byte* p = base + 4 * mid; + FT_ULong start = TT_NEXT_UINT24( p ); + FT_UInt cnt = FT_NEXT_BYTE( p ); + + + if ( char_code < start ) + max = mid; + else if ( char_code > start+cnt ) + min = mid + 1; + else + return TRUE; + } + + return FALSE; + } + + + static FT_UInt + tt_cmap14_char_map_nondef_binary( FT_Byte *base, + FT_UInt32 char_code ) + { + FT_UInt32 numMappings = TT_PEEK_ULONG( base ); + FT_UInt32 max, min; + + + min = 0; + max = numMappings; + + base += 4; + + /* binary search */ + while ( min < max ) + { + FT_UInt32 mid = ( min + max ) >> 1; + FT_Byte* p = base + 5 * mid; + FT_UInt32 uni = (FT_UInt32)TT_NEXT_UINT24( p ); + + + if ( char_code < uni ) + max = mid; + else if ( char_code > uni ) + min = mid + 1; + else + return TT_PEEK_USHORT( p ); + } + + return 0; + } + + + static FT_Byte* + tt_cmap14_find_variant( FT_Byte *base, + FT_UInt32 variantCode ) + { + FT_UInt32 numVar = TT_PEEK_ULONG( base ); + FT_UInt32 max, min; + + + min = 0; + max = numVar; + + base += 4; + + /* binary search */ + while ( min < max ) + { + FT_UInt32 mid = ( min + max ) >> 1; + FT_Byte* p = base + 11 * mid; + FT_ULong varSel = TT_NEXT_UINT24( p ); + + + if ( variantCode < varSel ) + max = mid; + else if ( variantCode > varSel ) + min = mid + 1; + else + return p; + } + + return NULL; + } + + + FT_CALLBACK_DEF( FT_UInt ) + tt_cmap14_char_var_index( TT_CMap cmap, + TT_CMap ucmap, + FT_UInt32 charcode, + FT_UInt32 variantSelector) + { + FT_Byte* p = tt_cmap14_find_variant( cmap->data + 6, variantSelector ); + FT_ULong defOff; + FT_ULong nondefOff; + + + if ( !p ) + return 0; + + defOff = TT_NEXT_ULONG( p ); + nondefOff = TT_PEEK_ULONG( p ); + + if ( defOff != 0 && + tt_cmap14_char_map_def_binary( cmap->data + defOff, charcode ) ) + { + /* This is the default variant of this charcode. GID not stored */ + /* here; stored in the normal Unicode charmap instead. */ + return ucmap->cmap.clazz->char_index( &ucmap->cmap, charcode ); + } + + if ( nondefOff != 0 ) + return tt_cmap14_char_map_nondef_binary( cmap->data + nondefOff, + charcode ); + + return 0; + } + + + FT_CALLBACK_DEF( FT_Int ) + tt_cmap14_char_var_isdefault( TT_CMap cmap, + FT_UInt32 charcode, + FT_UInt32 variantSelector ) + { + FT_Byte* p = tt_cmap14_find_variant( cmap->data + 6, variantSelector ); + FT_ULong defOff; + FT_ULong nondefOff; + + + if ( !p ) + return -1; + + defOff = TT_NEXT_ULONG( p ); + nondefOff = TT_NEXT_ULONG( p ); + + if ( defOff != 0 && + tt_cmap14_char_map_def_binary( cmap->data + defOff, charcode ) ) + return 1; + + if ( nondefOff != 0 && + tt_cmap14_char_map_nondef_binary( cmap->data + nondefOff, + charcode ) != 0 ) + return 0; + + return -1; + } + + + FT_CALLBACK_DEF( FT_UInt32* ) + tt_cmap14_variants( TT_CMap cmap, + FT_Memory memory ) + { + TT_CMap14 cmap14 = (TT_CMap14)cmap; + FT_UInt32 count = cmap14->num_selectors; + FT_Byte* p = cmap->data + 10; + FT_UInt32* result; + FT_UInt32 i; + + + if ( tt_cmap14_ensure( cmap14, ( count + 1 ), memory ) ) + return NULL; + + result = cmap14->results; + for ( i = 0; i < count; ++i ) + { + result[i] = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 8; + } + result[i] = 0; + + return result; + } + + + FT_CALLBACK_DEF( FT_UInt32 * ) + tt_cmap14_char_variants( TT_CMap cmap, + FT_Memory memory, + FT_UInt32 charCode ) + { + TT_CMap14 cmap14 = (TT_CMap14) cmap; + FT_UInt32 count = cmap14->num_selectors; + FT_Byte* p = cmap->data + 10; + FT_UInt32* q; + + + if ( tt_cmap14_ensure( cmap14, ( count + 1 ), memory ) ) + return NULL; + + for ( q = cmap14->results; count > 0; --count ) + { + FT_UInt32 varSel = TT_NEXT_UINT24( p ); + FT_ULong defOff = TT_NEXT_ULONG( p ); + FT_ULong nondefOff = TT_NEXT_ULONG( p ); + + + if ( ( defOff != 0 && + tt_cmap14_char_map_def_binary( cmap->data + defOff, + charCode ) ) || + ( nondefOff != 0 && + tt_cmap14_char_map_nondef_binary( cmap->data + nondefOff, + charCode ) != 0 ) ) + { + q[0] = varSel; + q++; + } + } + q[0] = 0; + + return cmap14->results; + } + + + static FT_UInt + tt_cmap14_def_char_count( FT_Byte *p ) + { + FT_UInt32 numRanges = (FT_UInt32)TT_NEXT_ULONG( p ); + FT_UInt tot = 0; + + + p += 3; /* point to the first `cnt' field */ + for ( ; numRanges > 0; numRanges-- ) + { + tot += 1 + p[0]; + p += 4; + } + + return tot; + } + + + static FT_UInt32* + tt_cmap14_get_def_chars( TT_CMap cmap, + FT_Byte* p, + FT_Memory memory ) + { + TT_CMap14 cmap14 = (TT_CMap14) cmap; + FT_UInt32 numRanges; + FT_UInt cnt; + FT_UInt32* q; + + + cnt = tt_cmap14_def_char_count( p ); + numRanges = (FT_UInt32)TT_NEXT_ULONG( p ); + + if ( tt_cmap14_ensure( cmap14, ( cnt + 1 ), memory ) ) + return NULL; + + for ( q = cmap14->results; numRanges > 0; --numRanges ) + { + FT_UInt32 uni = (FT_UInt32)TT_NEXT_UINT24( p ); + + + cnt = FT_NEXT_BYTE( p ) + 1; + do + { + q[0] = uni; + uni += 1; + q += 1; + } while ( --cnt != 0 ); + } + q[0] = 0; + + return cmap14->results; + } + + + static FT_UInt32* + tt_cmap14_get_nondef_chars( TT_CMap cmap, + FT_Byte *p, + FT_Memory memory ) + { + TT_CMap14 cmap14 = (TT_CMap14) cmap; + FT_UInt32 numMappings; + FT_UInt i; + FT_UInt32 *ret; + + + numMappings = (FT_UInt32)TT_NEXT_ULONG( p ); + + if ( tt_cmap14_ensure( cmap14, ( numMappings + 1 ), memory ) ) + return NULL; + + ret = cmap14->results; + for ( i = 0; i < numMappings; ++i ) + { + ret[i] = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 2; + } + ret[i] = 0; + + return ret; + } + + + FT_CALLBACK_DEF( FT_UInt32 * ) + tt_cmap14_variant_chars( TT_CMap cmap, + FT_Memory memory, + FT_UInt32 variantSelector ) + { + FT_Byte *p = tt_cmap14_find_variant( cmap->data + 6, + variantSelector ); + FT_UInt32 *ret; + FT_Int i; + FT_ULong defOff; + FT_ULong nondefOff; + + + if ( !p ) + return NULL; + + defOff = TT_NEXT_ULONG( p ); + nondefOff = TT_NEXT_ULONG( p ); + + if ( defOff == 0 && nondefOff == 0 ) + return NULL; + + if ( defOff == 0 ) + return tt_cmap14_get_nondef_chars( cmap, cmap->data + nondefOff, + memory ); + else if ( nondefOff == 0 ) + return tt_cmap14_get_def_chars( cmap, cmap->data + defOff, + memory ); + else + { + /* Both a default and a non-default glyph set? That's probably not */ + /* good font design, but the spec allows for it... */ + TT_CMap14 cmap14 = (TT_CMap14) cmap; + FT_UInt32 numRanges; + FT_UInt32 numMappings; + FT_UInt32 duni; + FT_UInt32 dcnt; + FT_UInt32 nuni; + FT_Byte* dp; + FT_UInt di, ni, k; + + + p = cmap->data + nondefOff; + dp = cmap->data + defOff; + + numMappings = (FT_UInt32)TT_NEXT_ULONG( p ); + dcnt = tt_cmap14_def_char_count( dp ); + numRanges = (FT_UInt32)TT_NEXT_ULONG( dp ); + + if ( numMappings == 0 ) + return tt_cmap14_get_def_chars( cmap, cmap->data + defOff, + memory ); + if ( dcnt == 0 ) + return tt_cmap14_get_nondef_chars( cmap, cmap->data + nondefOff, + memory ); + + if ( tt_cmap14_ensure( cmap14, ( dcnt + numMappings + 1 ), memory ) ) + return NULL; + + ret = cmap14->results; + duni = (FT_UInt32)TT_NEXT_UINT24( dp ); + dcnt = FT_NEXT_BYTE( dp ); + di = 1; + nuni = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 2; + ni = 1; + i = 0; + + for ( ;; ) + { + if ( nuni > duni + dcnt ) + { + for ( k = 0; k <= dcnt; ++k ) + ret[i++] = duni + k; + + ++di; + + if ( di > numRanges ) + break; + + duni = (FT_UInt32)TT_NEXT_UINT24( dp ); + dcnt = FT_NEXT_BYTE( dp ); + } + else + { + if ( nuni < duni ) + ret[i++] = nuni; + /* If it is within the default range then ignore it -- */ + /* that should not have happened */ + ++ni; + if ( ni > numMappings ) + break; + + nuni = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 2; + } + } + + if ( ni <= numMappings ) + { + /* If we get here then we have run out of all default ranges. */ + /* We have read one non-default mapping which we haven't stored */ + /* and there may be others that need to be read. */ + ret[i++] = nuni; + while ( ni < numMappings ) + { + ret[i++] = (FT_UInt32)TT_NEXT_UINT24( p ); + p += 2; + ++ni; + } + } + else if ( di <= numRanges ) + { + /* If we get here then we have run out of all non-default */ + /* mappings. We have read one default range which we haven't */ + /* stored and there may be others that need to be read. */ + for ( k = 0; k <= dcnt; ++k ) + ret[i++] = duni + k; + + while ( di < numRanges ) + { + duni = (FT_UInt32)TT_NEXT_UINT24( dp ); + dcnt = FT_NEXT_BYTE( dp ); + + for ( k = 0; k <= dcnt; ++k ) + ret[i++] = duni + k; + ++di; + } + } + + ret[i] = 0; + + return ret; + } + } + + + FT_DEFINE_TT_CMAP(tt_cmap14_class_rec, + sizeof ( TT_CMap14Rec ), + + (FT_CMap_InitFunc) tt_cmap14_init, + (FT_CMap_DoneFunc) tt_cmap14_done, + (FT_CMap_CharIndexFunc)tt_cmap14_char_index, + (FT_CMap_CharNextFunc) tt_cmap14_char_next, + + /* Format 14 extension functions */ + (FT_CMap_CharVarIndexFunc) tt_cmap14_char_var_index, + (FT_CMap_CharVarIsDefaultFunc)tt_cmap14_char_var_isdefault, + (FT_CMap_VariantListFunc) tt_cmap14_variants, + (FT_CMap_CharVariantListFunc) tt_cmap14_char_variants, + (FT_CMap_VariantCharListFunc) tt_cmap14_variant_chars + , + 14, + (TT_CMap_ValidateFunc)tt_cmap14_validate, + (TT_CMap_Info_GetFunc)tt_cmap14_get_info + ) + +#endif /* TT_CONFIG_CMAP_FORMAT_14 */ + + +#ifndef FT_CONFIG_OPTION_PIC + + static const TT_CMap_Class tt_cmap_classes[] = + { +#define TTCMAPCITEM(a) &a, +#include "ttcmapc.h" + NULL, + }; + +#else /*FT_CONFIG_OPTION_PIC*/ + + void FT_Destroy_Class_tt_cmap_classes(FT_Library library, TT_CMap_Class* clazz) + { + FT_Memory memory = library->memory; + if ( clazz ) + FT_FREE( clazz ); + } + + FT_Error FT_Create_Class_tt_cmap_classes(FT_Library library, TT_CMap_Class** output_class) + { + TT_CMap_Class* clazz; + TT_CMap_ClassRec* recs; + FT_Error error; + FT_Memory memory = library->memory; + int i = 0; + +#define TTCMAPCITEM(a) i++; +#include "ttcmapc.h" + + /* allocate enough space for both the pointers +terminator and the class instances */ + if ( FT_ALLOC( clazz, sizeof(*clazz)*(i+1)+sizeof(TT_CMap_ClassRec)*i ) ) + return error; + + /* the location of the class instances follows the array of pointers */ + recs = (TT_CMap_ClassRec*) (((char*)clazz)+(sizeof(*clazz)*(i+1))); + i=0; + +#undef TTCMAPCITEM +#define TTCMAPCITEM(a) \ + FT_Init_Class_##a(&recs[i]); \ + clazz[i] = &recs[i]; \ + i++; +#include "ttcmapc.h" + + clazz[i] = NULL; + + *output_class = clazz; + return SFNT_Err_Ok; + } + +#endif /*FT_CONFIG_OPTION_PIC*/ + + + /* parse the `cmap' table and build the corresponding TT_CMap objects */ + /* in the current face */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_build_cmaps( TT_Face face ) + { + FT_Byte* table = face->cmap_table; + FT_Byte* limit = table + face->cmap_size; + FT_UInt volatile num_cmaps; + FT_Byte* volatile p = table; + FT_Library library = FT_FACE_LIBRARY( face ); + + FT_UNUSED( library ); + + + if ( !p || p + 4 > limit ) + return SFNT_Err_Invalid_Table; + + /* only recognize format 0 */ + if ( TT_NEXT_USHORT( p ) != 0 ) + { + p -= 2; + FT_ERROR(( "tt_face_build_cmaps:" + " unsupported `cmap' table format = %d\n", + TT_PEEK_USHORT( p ) )); + return SFNT_Err_Invalid_Table; + } + + num_cmaps = TT_NEXT_USHORT( p ); +#ifdef FT_MAX_CHARMAP_CACHEABLE + if ( num_cmaps > FT_MAX_CHARMAP_CACHEABLE ) + FT_ERROR(( "tt_face_build_cmaps: too many cmap subtables(%d) " + "subtable#%d and later are loaded but cannot be searched\n", + num_cmaps, FT_MAX_CHARMAP_CACHEABLE + 1 )); +#endif + + for ( ; num_cmaps > 0 && p + 8 <= limit; num_cmaps-- ) + { + FT_CharMapRec charmap; + FT_UInt32 offset; + + + charmap.platform_id = TT_NEXT_USHORT( p ); + charmap.encoding_id = TT_NEXT_USHORT( p ); + charmap.face = FT_FACE( face ); + charmap.encoding = FT_ENCODING_NONE; /* will be filled later */ + offset = TT_NEXT_ULONG( p ); + + if ( offset && offset <= face->cmap_size - 2 ) + { + FT_Byte* volatile cmap = table + offset; + volatile FT_UInt format = TT_PEEK_USHORT( cmap ); + const TT_CMap_Class* volatile pclazz = FT_TT_CMAP_CLASSES_GET; + TT_CMap_Class volatile clazz; + + + for ( ; *pclazz; pclazz++ ) + { + clazz = *pclazz; + if ( clazz->format == format ) + { + volatile TT_ValidatorRec valid; + volatile FT_Error error = SFNT_Err_Ok; + + + ft_validator_init( FT_VALIDATOR( &valid ), cmap, limit, + FT_VALIDATE_DEFAULT ); + + valid.num_glyphs = (FT_UInt)face->max_profile.numGlyphs; + + if ( ft_setjmp( + *((ft_jmp_buf*)&FT_VALIDATOR( &valid )->jump_buffer) ) == 0 ) + { + /* validate this cmap sub-table */ + error = clazz->validate( cmap, FT_VALIDATOR( &valid ) ); + } + + if ( valid.validator.error == 0 ) + { + FT_CMap ttcmap; + + + /* It might make sense to store the single variation selector */ + /* cmap somewhere special. But it would have to be in the */ + /* public FT_FaceRec, and we can't change that. */ + + if ( !FT_CMap_New( (FT_CMap_Class)clazz, + cmap, &charmap, &ttcmap ) ) + { + /* it is simpler to directly set `flags' than adding */ + /* a parameter to FT_CMap_New */ + ((TT_CMap)ttcmap)->flags = (FT_Int)error; + } + } + else + { + FT_TRACE0(( "tt_face_build_cmaps:" + " broken cmap sub-table ignored\n" )); + } + break; + } + } + + if ( *pclazz == NULL ) + { + FT_TRACE0(( "tt_face_build_cmaps:" + " unsupported cmap sub-table ignored\n" )); + } + } + } + + return SFNT_Err_Ok; + } + + + FT_LOCAL( FT_Error ) + tt_get_cmap_info( FT_CharMap charmap, + TT_CMapInfo *cmap_info ) + { + FT_CMap cmap = (FT_CMap)charmap; + TT_CMap_Class clazz = (TT_CMap_Class)cmap->clazz; + + + return clazz->get_cmap_info( charmap, cmap_info ); + } + + +/* END */ diff --git a/src/sfnt/ttcmap.h b/src/sfnt/ttcmap.h new file mode 100644 index 0000000..94f7978 --- /dev/null +++ b/src/sfnt/ttcmap.h @@ -0,0 +1,125 @@ +/***************************************************************************/ +/* */ +/* ttcmap.h */ +/* */ +/* TrueType character mapping table (cmap) support (specification). */ +/* */ +/* Copyright 2002, 2003, 2004, 2005 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTCMAP_H__ +#define __TTCMAP_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_TRUETYPE_TYPES_H +#include FT_INTERNAL_VALIDATE_H +#include FT_SERVICE_TT_CMAP_H + +FT_BEGIN_HEADER + + +#define TT_CMAP_FLAG_UNSORTED 1 +#define TT_CMAP_FLAG_OVERLAPPING 2 + + typedef struct TT_CMapRec_ + { + FT_CMapRec cmap; + FT_Byte* data; /* pointer to in-memory cmap table */ + FT_Int flags; /* for format 4 only */ + + } TT_CMapRec, *TT_CMap; + + typedef const struct TT_CMap_ClassRec_* TT_CMap_Class; + + + typedef FT_Error + (*TT_CMap_ValidateFunc)( FT_Byte* data, + FT_Validator valid ); + + typedef struct TT_CMap_ClassRec_ + { + FT_CMap_ClassRec clazz; + FT_UInt format; + TT_CMap_ValidateFunc validate; + TT_CMap_Info_GetFunc get_cmap_info; + + } TT_CMap_ClassRec; + +#ifndef FT_CONFIG_OPTION_PIC + +#define FT_DEFINE_TT_CMAP(class_, size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_,variantchar_list_, \ + format_, validate_, get_cmap_info_) \ + FT_CALLBACK_TABLE_DEF \ + const TT_CMap_ClassRec class_ = \ + { \ + {size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_, variantchar_list_}, \ + format_, validate_, get_cmap_info_ \ + }; + +#else /* FT_CONFIG_OPTION_PIC */ + +#define FT_DEFINE_TT_CMAP(class_, size_, init_, done_, char_index_, \ + char_next_, char_var_index_, char_var_default_, variant_list_, \ + charvariant_list_,variantchar_list_, \ + format_, validate_, get_cmap_info_) \ + void \ + FT_Init_Class_##class_( TT_CMap_ClassRec* clazz ) \ + { \ + clazz->clazz.size = size_; \ + clazz->clazz.init = init_; \ + clazz->clazz.done = done_; \ + clazz->clazz.char_index = char_index_; \ + clazz->clazz.char_next = char_next_; \ + clazz->clazz.char_var_index = char_var_index_; \ + clazz->clazz.char_var_default = char_var_default_; \ + clazz->clazz.variant_list = variant_list_; \ + clazz->clazz.charvariant_list = charvariant_list_; \ + clazz->clazz.variantchar_list = variantchar_list_; \ + clazz->format = format_; \ + clazz->validate = validate_; \ + clazz->get_cmap_info = get_cmap_info_; \ + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + typedef struct TT_ValidatorRec_ + { + FT_ValidatorRec validator; + FT_UInt num_glyphs; + + } TT_ValidatorRec, *TT_Validator; + + +#define TT_VALIDATOR( x ) ((TT_Validator)( x )) +#define TT_VALID_GLYPH_COUNT( x ) TT_VALIDATOR( x )->num_glyphs + + + FT_LOCAL( FT_Error ) + tt_face_build_cmaps( TT_Face face ); + + /* used in tt-cmaps service */ + FT_LOCAL( FT_Error ) + tt_get_cmap_info( FT_CharMap charmap, + TT_CMapInfo *cmap_info ); + + +FT_END_HEADER + +#endif /* __TTCMAP_H__ */ + + +/* END */ diff --git a/src/sfnt/ttcmapc.h b/src/sfnt/ttcmapc.h new file mode 100644 index 0000000..4c9c6a5 --- /dev/null +++ b/src/sfnt/ttcmapc.h @@ -0,0 +1,55 @@ +/***************************************************************************/ +/* */ +/* ttcmapc.h */ +/* */ +/* TT CMAP classes definitions (specification only). */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifdef TT_CONFIG_CMAP_FORMAT_0 + TTCMAPCITEM(tt_cmap0_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_2 + TTCMAPCITEM(tt_cmap2_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_4 + TTCMAPCITEM(tt_cmap4_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_6 + TTCMAPCITEM(tt_cmap6_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_8 + TTCMAPCITEM(tt_cmap8_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_10 + TTCMAPCITEM(tt_cmap10_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_12 + TTCMAPCITEM(tt_cmap12_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_13 + TTCMAPCITEM(tt_cmap13_class_rec) +#endif + +#ifdef TT_CONFIG_CMAP_FORMAT_14 + TTCMAPCITEM(tt_cmap14_class_rec) +#endif + + /* END */ diff --git a/src/sfnt/ttkern.c b/src/sfnt/ttkern.c new file mode 100644 index 0000000..4688898 --- /dev/null +++ b/src/sfnt/ttkern.c @@ -0,0 +1,306 @@ +/***************************************************************************/ +/* */ +/* ttkern.c */ +/* */ +/* Load the basic TrueType kerning table. This doesn't handle */ +/* kerning data within the GPOS table at the moment. */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttkern.h" + +#include "sferrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttkern + + +#undef TT_KERN_INDEX +#define TT_KERN_INDEX( g1, g2 ) ( ( (FT_ULong)(g1) << 16 ) | (g2) ) + + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_kern( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + FT_ULong table_size; + FT_Byte* p; + FT_Byte* p_limit; + FT_UInt nn, num_tables; + FT_UInt32 avail = 0, ordered = 0; + + + /* the kern table is optional; exit silently if it is missing */ + error = face->goto_table( face, TTAG_kern, stream, &table_size ); + if ( error ) + goto Exit; + + if ( table_size < 4 ) /* the case of a malformed table */ + { + FT_ERROR(( "tt_face_load_kern:" + " kerning table is too small - ignored\n" )); + error = SFNT_Err_Table_Missing; + goto Exit; + } + + if ( FT_FRAME_EXTRACT( table_size, face->kern_table ) ) + { + FT_ERROR(( "tt_face_load_kern:" + " could not extract kerning table\n" )); + goto Exit; + } + + face->kern_table_size = table_size; + + p = face->kern_table; + p_limit = p + table_size; + + p += 2; /* skip version */ + num_tables = FT_NEXT_USHORT( p ); + + if ( num_tables > 32 ) /* we only support up to 32 sub-tables */ + num_tables = 32; + + for ( nn = 0; nn < num_tables; nn++ ) + { + FT_UInt num_pairs, length, coverage; + FT_Byte* p_next; + FT_UInt32 mask = (FT_UInt32)1UL << nn; + + + if ( p + 6 > p_limit ) + break; + + p_next = p; + + p += 2; /* skip version */ + length = FT_NEXT_USHORT( p ); + coverage = FT_NEXT_USHORT( p ); + + if ( length <= 6 ) + break; + + p_next += length; + + if ( p_next > p_limit ) /* handle broken table */ + p_next = p_limit; + + /* only use horizontal kerning tables */ + if ( ( coverage & ~8 ) != 0x0001 || + p + 8 > p_limit ) + goto NextTable; + + num_pairs = FT_NEXT_USHORT( p ); + p += 6; + + if ( ( p_next - p ) < 6 * (int)num_pairs ) /* handle broken count */ + num_pairs = (FT_UInt)( ( p_next - p ) / 6 ); + + avail |= mask; + + /* + * Now check whether the pairs in this table are ordered. + * We then can use binary search. + */ + if ( num_pairs > 0 ) + { + FT_ULong count; + FT_ULong old_pair; + + + old_pair = FT_NEXT_ULONG( p ); + p += 2; + + for ( count = num_pairs - 1; count > 0; count-- ) + { + FT_UInt32 cur_pair; + + + cur_pair = FT_NEXT_ULONG( p ); + if ( cur_pair <= old_pair ) + break; + + p += 2; + old_pair = cur_pair; + } + + if ( count == 0 ) + ordered |= mask; + } + + NextTable: + p = p_next; + } + + face->num_kern_tables = nn; + face->kern_avail_bits = avail; + face->kern_order_bits = ordered; + + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + tt_face_done_kern( TT_Face face ) + { + FT_Stream stream = face->root.stream; + + + FT_FRAME_RELEASE( face->kern_table ); + face->kern_table_size = 0; + face->num_kern_tables = 0; + face->kern_avail_bits = 0; + face->kern_order_bits = 0; + } + + + FT_LOCAL_DEF( FT_Int ) + tt_face_get_kerning( TT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph ) + { + FT_Int result = 0; + FT_UInt count, mask = 1; + FT_Byte* p = face->kern_table; + FT_Byte* p_limit = p + face->kern_table_size; + + + p += 4; + mask = 0x0001; + + for ( count = face->num_kern_tables; + count > 0 && p + 6 <= p_limit; + count--, mask <<= 1 ) + { + FT_Byte* base = p; + FT_Byte* next = base; + FT_UInt version = FT_NEXT_USHORT( p ); + FT_UInt length = FT_NEXT_USHORT( p ); + FT_UInt coverage = FT_NEXT_USHORT( p ); + FT_UInt num_pairs; + FT_Int value = 0; + + FT_UNUSED( version ); + + + next = base + length; + + if ( next > p_limit ) /* handle broken table */ + next = p_limit; + + if ( ( face->kern_avail_bits & mask ) == 0 ) + goto NextTable; + + if ( p + 8 > next ) + goto NextTable; + + num_pairs = FT_NEXT_USHORT( p ); + p += 6; + + if ( ( next - p ) < 6 * (int)num_pairs ) /* handle broken count */ + num_pairs = (FT_UInt)( ( next - p ) / 6 ); + + switch ( coverage >> 8 ) + { + case 0: + { + FT_ULong key0 = TT_KERN_INDEX( left_glyph, right_glyph ); + + + if ( face->kern_order_bits & mask ) /* binary search */ + { + FT_UInt min = 0; + FT_UInt max = num_pairs; + + + while ( min < max ) + { + FT_UInt mid = ( min + max ) >> 1; + FT_Byte* q = p + 6 * mid; + FT_ULong key; + + + key = FT_NEXT_ULONG( q ); + + if ( key == key0 ) + { + value = FT_PEEK_SHORT( q ); + goto Found; + } + if ( key < key0 ) + min = mid + 1; + else + max = mid; + } + } + else /* linear search */ + { + FT_UInt count2; + + + for ( count2 = num_pairs; count2 > 0; count2-- ) + { + FT_ULong key = FT_NEXT_ULONG( p ); + + + if ( key == key0 ) + { + value = FT_PEEK_SHORT( p ); + goto Found; + } + p += 2; + } + } + } + break; + + /* + * We don't support format 2 because we haven't seen a single font + * using it in real life... + */ + + default: + ; + } + + goto NextTable; + + Found: + if ( coverage & 8 ) /* override or add */ + result = value; + else + result += value; + + NextTable: + p = next; + } + + return result; + } + +#undef TT_KERN_INDEX + +/* END */ diff --git a/src/sfnt/ttkern.h b/src/sfnt/ttkern.h new file mode 100644 index 0000000..df1da9b --- /dev/null +++ b/src/sfnt/ttkern.h @@ -0,0 +1,52 @@ +/***************************************************************************/ +/* */ +/* ttkern.h */ +/* */ +/* Load the basic TrueType kerning table. This doesn't handle */ +/* kerning data within the GPOS table at the moment. */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTKERN_H__ +#define __TTKERN_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + tt_face_load_kern( TT_Face face, + FT_Stream stream ); + + FT_LOCAL( void ) + tt_face_done_kern( TT_Face face ); + + FT_LOCAL( FT_Int ) + tt_face_get_kerning( TT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph ); + +#define TT_FACE_HAS_KERNING( face ) ( (face)->kern_avail_bits != 0 ) + + +FT_END_HEADER + +#endif /* __TTKERN_H__ */ + + +/* END */ diff --git a/src/sfnt/ttload.c b/src/sfnt/ttload.c new file mode 100644 index 0000000..5fb9aea --- /dev/null +++ b/src/sfnt/ttload.c @@ -0,0 +1,1267 @@ +/***************************************************************************/ +/* */ +/* ttload.c */ +/* */ +/* Load the basic TrueType tables, i.e., tables that can be either in */ +/* TTF or OTF fonts (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ +/* 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttload.h" + +#include "sferrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttload + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_lookup_table */ + /* */ + /* <Description> */ + /* Looks for a TrueType table by name. */ + /* */ + /* <Input> */ + /* face :: A face object handle. */ + /* */ + /* tag :: The searched tag. */ + /* */ + /* <Return> */ + /* A pointer to the table directory entry. 0 if not found. */ + /* */ + FT_LOCAL_DEF( TT_Table ) + tt_face_lookup_table( TT_Face face, + FT_ULong tag ) + { + TT_Table entry; + TT_Table limit; +#ifdef FT_DEBUG_LEVEL_TRACE + FT_Bool zero_length = FALSE; +#endif + + + FT_TRACE4(( "tt_face_lookup_table: %08p, `%c%c%c%c' -- ", + face, + (FT_Char)( tag >> 24 ), + (FT_Char)( tag >> 16 ), + (FT_Char)( tag >> 8 ), + (FT_Char)( tag ) )); + + entry = face->dir_tables; + limit = entry + face->num_tables; + + for ( ; entry < limit; entry++ ) + { + /* For compatibility with Windows, we consider */ + /* zero-length tables the same as missing tables. */ + if ( entry->Tag == tag ) + { + if ( entry->Length != 0 ) + { + FT_TRACE4(( "found table.\n" )); + return entry; + } +#ifdef FT_DEBUG_LEVEL_TRACE + zero_length = TRUE; +#endif + } + } + +#ifdef FT_DEBUG_LEVEL_TRACE + if ( zero_length ) + FT_TRACE4(( "ignoring empty table\n" )); + else + FT_TRACE4(( "could not find table\n" )); +#endif + + return NULL; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_goto_table */ + /* */ + /* <Description> */ + /* Looks for a TrueType table by name, then seek a stream to it. */ + /* */ + /* <Input> */ + /* face :: A face object handle. */ + /* */ + /* tag :: The searched tag. */ + /* */ + /* stream :: The stream to seek when the table is found. */ + /* */ + /* <Output> */ + /* length :: The length of the table if found, undefined otherwise. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_goto_table( TT_Face face, + FT_ULong tag, + FT_Stream stream, + FT_ULong* length ) + { + TT_Table table; + FT_Error error; + + + table = tt_face_lookup_table( face, tag ); + if ( table ) + { + if ( length ) + *length = table->Length; + + if ( FT_STREAM_SEEK( table->Offset ) ) + goto Exit; + } + else + error = SFNT_Err_Table_Missing; + + Exit: + return error; + } + + + /* Here, we */ + /* */ + /* - check that `num_tables' is valid (and adjust it if necessary) */ + /* */ + /* - look for a `head' table, check its size, and parse it to check */ + /* whether its `magic' field is correctly set */ + /* */ + /* - errors (except errors returned by stream handling) */ + /* */ + /* SFNT_Err_Unknown_File_Format: */ + /* no table is defined in directory, it is not sfnt-wrapped */ + /* data */ + /* SFNT_Err_Table_Missing: */ + /* table directory is valid, but essential tables */ + /* (head/bhed/SING) are missing */ + /* */ + static FT_Error + check_table_dir( SFNT_Header sfnt, + FT_Stream stream ) + { + FT_Error error; + FT_UShort nn, valid_entries = 0; + FT_UInt has_head = 0, has_sing = 0, has_meta = 0; + FT_ULong offset = sfnt->offset + 12; + + static const FT_Frame_Field table_dir_entry_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_TableRec + + FT_FRAME_START( 16 ), + FT_FRAME_ULONG( Tag ), + FT_FRAME_ULONG( CheckSum ), + FT_FRAME_ULONG( Offset ), + FT_FRAME_ULONG( Length ), + FT_FRAME_END + }; + + + if ( FT_STREAM_SEEK( offset ) ) + goto Exit; + + for ( nn = 0; nn < sfnt->num_tables; nn++ ) + { + TT_TableRec table; + + + if ( FT_STREAM_READ_FIELDS( table_dir_entry_fields, &table ) ) + { + nn--; + FT_TRACE2(( "check_table_dir:" + " can read only %d table%s in font (instead of %d)\n", + nn, nn == 1 ? "" : "s", sfnt->num_tables )); + sfnt->num_tables = nn; + break; + } + + /* we ignore invalid tables */ + if ( table.Offset + table.Length > stream->size ) + { + FT_TRACE2(( "check_table_dir: table entry %d invalid\n", nn )); + continue; + } + else + valid_entries++; + + if ( table.Tag == TTAG_head || table.Tag == TTAG_bhed ) + { + FT_UInt32 magic; + + +#ifndef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + if ( table.Tag == TTAG_head ) +#endif + has_head = 1; + + /* + * The table length should be 0x36, but certain font tools make it + * 0x38, so we will just check that it is greater. + * + * Note that according to the specification, the table must be + * padded to 32-bit lengths, but this doesn't apply to the value of + * its `Length' field! + * + */ + if ( table.Length < 0x36 ) + { + FT_TRACE2(( "check_table_dir: `head' table too small\n" )); + error = SFNT_Err_Table_Missing; + goto Exit; + } + + if ( FT_STREAM_SEEK( table.Offset + 12 ) || + FT_READ_ULONG( magic ) ) + goto Exit; + + if ( magic != 0x5F0F3CF5UL ) + { + FT_TRACE2(( "check_table_dir:" + " no magic number found in `head' table\n")); + error = SFNT_Err_Table_Missing; + goto Exit; + } + + if ( FT_STREAM_SEEK( offset + ( nn + 1 ) * 16 ) ) + goto Exit; + } + else if ( table.Tag == TTAG_SING ) + has_sing = 1; + else if ( table.Tag == TTAG_META ) + has_meta = 1; + } + + sfnt->num_tables = valid_entries; + + if ( sfnt->num_tables == 0 ) + { + FT_TRACE2(( "check_table_dir: no tables found\n" )); + error = SFNT_Err_Unknown_File_Format; + goto Exit; + } + + /* if `sing' and `meta' tables are present, there is no `head' table */ + if ( has_head || ( has_sing && has_meta ) ) + { + error = SFNT_Err_Ok; + goto Exit; + } + else + { + FT_TRACE2(( "check_table_dir:" )); +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + FT_TRACE2(( " neither `head', `bhed', nor `sing' table found\n" )); +#else + FT_TRACE2(( " neither `head' nor `sing' table found\n" )); +#endif + error = SFNT_Err_Table_Missing; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_font_dir */ + /* */ + /* <Description> */ + /* Loads the header of a SFNT font file. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Output> */ + /* sfnt :: The SFNT header. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be at the beginning of the font directory. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_font_dir( TT_Face face, + FT_Stream stream ) + { + SFNT_HeaderRec sfnt; + FT_Error error; + FT_Memory memory = stream->memory; + TT_TableRec* entry; + FT_Int nn; + + static const FT_Frame_Field offset_table_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE SFNT_HeaderRec + + FT_FRAME_START( 8 ), + FT_FRAME_USHORT( num_tables ), + FT_FRAME_USHORT( search_range ), + FT_FRAME_USHORT( entry_selector ), + FT_FRAME_USHORT( range_shift ), + FT_FRAME_END + }; + + + FT_TRACE2(( "tt_face_load_font_dir: %08p\n", face )); + + /* read the offset table */ + + sfnt.offset = FT_STREAM_POS(); + + if ( FT_READ_ULONG( sfnt.format_tag ) || + FT_STREAM_READ_FIELDS( offset_table_fields, &sfnt ) ) + goto Exit; + + /* many fonts don't have these fields set correctly */ +#if 0 + if ( sfnt.search_range != 1 << ( sfnt.entry_selector + 4 ) || + sfnt.search_range + sfnt.range_shift != sfnt.num_tables << 4 ) + return SFNT_Err_Unknown_File_Format; +#endif + + /* load the table directory */ + + FT_TRACE2(( "-- Number of tables: %10u\n", sfnt.num_tables )); + FT_TRACE2(( "-- Format version: 0x%08lx\n", sfnt.format_tag )); + + /* check first */ + error = check_table_dir( &sfnt, stream ); + if ( error ) + { + FT_TRACE2(( "tt_face_load_font_dir:" + " invalid table directory for TrueType\n" )); + + goto Exit; + } + + face->num_tables = sfnt.num_tables; + face->format_tag = sfnt.format_tag; + + if ( FT_QNEW_ARRAY( face->dir_tables, face->num_tables ) ) + goto Exit; + + if ( FT_STREAM_SEEK( sfnt.offset + 12 ) || + FT_FRAME_ENTER( face->num_tables * 16L ) ) + goto Exit; + + entry = face->dir_tables; + + FT_TRACE2(( "\n" + " tag offset length checksum\n" + " ----------------------------------\n" )); + + for ( nn = 0; nn < sfnt.num_tables; nn++ ) + { + entry->Tag = FT_GET_TAG4(); + entry->CheckSum = FT_GET_ULONG(); + entry->Offset = FT_GET_LONG(); + entry->Length = FT_GET_LONG(); + + /* ignore invalid tables */ + if ( entry->Offset + entry->Length > stream->size ) + continue; + else + { + FT_TRACE2(( " %c%c%c%c %08lx %08lx %08lx\n", + (FT_Char)( entry->Tag >> 24 ), + (FT_Char)( entry->Tag >> 16 ), + (FT_Char)( entry->Tag >> 8 ), + (FT_Char)( entry->Tag ), + entry->Offset, + entry->Length, + entry->CheckSum )); + entry++; + } + } + + FT_FRAME_EXIT(); + + FT_TRACE2(( "table directory loaded\n\n" )); + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_any */ + /* */ + /* <Description> */ + /* Loads any font table into client memory. */ + /* */ + /* <Input> */ + /* face :: The face object to look for. */ + /* */ + /* tag :: The tag of table to load. Use the value 0 if you want */ + /* to access the whole font file, else set this parameter */ + /* to a valid TrueType table tag that you can forge with */ + /* the MAKE_TT_TAG macro. */ + /* */ + /* offset :: The starting offset in the table (or the file if */ + /* tag == 0). */ + /* */ + /* length :: The address of the decision variable: */ + /* */ + /* If length == NULL: */ + /* Loads the whole table. Returns an error if */ + /* `offset' == 0! */ + /* */ + /* If *length == 0: */ + /* Exits immediately; returning the length of the given */ + /* table or of the font file, depending on the value of */ + /* `tag'. */ + /* */ + /* If *length != 0: */ + /* Loads the next `length' bytes of table or font, */ + /* starting at offset `offset' (in table or font too). */ + /* */ + /* <Output> */ + /* buffer :: The address of target buffer. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_any( TT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte* buffer, + FT_ULong* length ) + { + FT_Error error; + FT_Stream stream; + TT_Table table; + FT_ULong size; + + + if ( tag != 0 ) + { + /* look for tag in font directory */ + table = tt_face_lookup_table( face, tag ); + if ( !table ) + { + error = SFNT_Err_Table_Missing; + goto Exit; + } + + offset += table->Offset; + size = table->Length; + } + else + /* tag == 0 -- the user wants to access the font file directly */ + size = face->root.stream->size; + + if ( length && *length == 0 ) + { + *length = size; + + return SFNT_Err_Ok; + } + + if ( length ) + size = *length; + + stream = face->root.stream; + /* the `if' is syntactic sugar for picky compilers */ + if ( FT_STREAM_READ_AT( offset, buffer, size ) ) + goto Exit; + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_generic_header */ + /* */ + /* <Description> */ + /* Loads the TrueType table `head' or `bhed'. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + tt_face_load_generic_header( TT_Face face, + FT_Stream stream, + FT_ULong tag ) + { + FT_Error error; + TT_Header* header; + + static const FT_Frame_Field header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_Header + + FT_FRAME_START( 54 ), + FT_FRAME_ULONG ( Table_Version ), + FT_FRAME_ULONG ( Font_Revision ), + FT_FRAME_LONG ( CheckSum_Adjust ), + FT_FRAME_LONG ( Magic_Number ), + FT_FRAME_USHORT( Flags ), + FT_FRAME_USHORT( Units_Per_EM ), + FT_FRAME_LONG ( Created[0] ), + FT_FRAME_LONG ( Created[1] ), + FT_FRAME_LONG ( Modified[0] ), + FT_FRAME_LONG ( Modified[1] ), + FT_FRAME_SHORT ( xMin ), + FT_FRAME_SHORT ( yMin ), + FT_FRAME_SHORT ( xMax ), + FT_FRAME_SHORT ( yMax ), + FT_FRAME_USHORT( Mac_Style ), + FT_FRAME_USHORT( Lowest_Rec_PPEM ), + FT_FRAME_SHORT ( Font_Direction ), + FT_FRAME_SHORT ( Index_To_Loc_Format ), + FT_FRAME_SHORT ( Glyph_Data_Format ), + FT_FRAME_END + }; + + + error = face->goto_table( face, tag, stream, 0 ); + if ( error ) + goto Exit; + + header = &face->header; + + if ( FT_STREAM_READ_FIELDS( header_fields, header ) ) + goto Exit; + + FT_TRACE3(( "Units per EM: %4u\n", header->Units_Per_EM )); + FT_TRACE3(( "IndexToLoc: %4d\n", header->Index_To_Loc_Format )); + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_head( TT_Face face, + FT_Stream stream ) + { + return tt_face_load_generic_header( face, stream, TTAG_head ); + } + + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_bhed( TT_Face face, + FT_Stream stream ) + { + return tt_face_load_generic_header( face, stream, TTAG_bhed ); + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_max_profile */ + /* */ + /* <Description> */ + /* Loads the maximum profile into a face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_maxp( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + TT_MaxProfile* maxProfile = &face->max_profile; + + const FT_Frame_Field maxp_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_MaxProfile + + FT_FRAME_START( 6 ), + FT_FRAME_LONG ( version ), + FT_FRAME_USHORT( numGlyphs ), + FT_FRAME_END + }; + + const FT_Frame_Field maxp_fields_extra[] = + { + FT_FRAME_START( 26 ), + FT_FRAME_USHORT( maxPoints ), + FT_FRAME_USHORT( maxContours ), + FT_FRAME_USHORT( maxCompositePoints ), + FT_FRAME_USHORT( maxCompositeContours ), + FT_FRAME_USHORT( maxZones ), + FT_FRAME_USHORT( maxTwilightPoints ), + FT_FRAME_USHORT( maxStorage ), + FT_FRAME_USHORT( maxFunctionDefs ), + FT_FRAME_USHORT( maxInstructionDefs ), + FT_FRAME_USHORT( maxStackElements ), + FT_FRAME_USHORT( maxSizeOfInstructions ), + FT_FRAME_USHORT( maxComponentElements ), + FT_FRAME_USHORT( maxComponentDepth ), + FT_FRAME_END + }; + + + error = face->goto_table( face, TTAG_maxp, stream, 0 ); + if ( error ) + goto Exit; + + if ( FT_STREAM_READ_FIELDS( maxp_fields, maxProfile ) ) + goto Exit; + + maxProfile->maxPoints = 0; + maxProfile->maxContours = 0; + maxProfile->maxCompositePoints = 0; + maxProfile->maxCompositeContours = 0; + maxProfile->maxZones = 0; + maxProfile->maxTwilightPoints = 0; + maxProfile->maxStorage = 0; + maxProfile->maxFunctionDefs = 0; + maxProfile->maxInstructionDefs = 0; + maxProfile->maxStackElements = 0; + maxProfile->maxSizeOfInstructions = 0; + maxProfile->maxComponentElements = 0; + maxProfile->maxComponentDepth = 0; + + if ( maxProfile->version >= 0x10000L ) + { + if ( FT_STREAM_READ_FIELDS( maxp_fields_extra, maxProfile ) ) + goto Exit; + + /* XXX: an adjustment that is necessary to load certain */ + /* broken fonts like `Keystrokes MT' :-( */ + /* */ + /* We allocate 64 function entries by default when */ + /* the maxFunctionDefs value is smaller. */ + + if ( maxProfile->maxFunctionDefs < 64 ) + maxProfile->maxFunctionDefs = 64; + + /* we add 4 phantom points later */ + if ( maxProfile->maxTwilightPoints > ( 0xFFFFU - 4 ) ) + { + FT_TRACE0(( "tt_face_load_maxp:" + " too much twilight points in `maxp' table;\n" + " " + " some glyphs might be rendered incorrectly\n" )); + + maxProfile->maxTwilightPoints = 0xFFFFU - 4; + } + + /* we arbitrarily limit recursion to avoid stack exhaustion */ + if ( maxProfile->maxComponentDepth > 100 ) + { + FT_TRACE0(( "tt_face_load_maxp:" + " abnormally large component depth (%d) set to 100\n", + maxProfile->maxComponentDepth )); + maxProfile->maxComponentDepth = 100; + } + } + + FT_TRACE3(( "numGlyphs: %u\n", maxProfile->numGlyphs )); + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_names */ + /* */ + /* <Description> */ + /* Loads the name records. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_name( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + FT_Memory memory = stream->memory; + FT_ULong table_pos, table_len; + FT_ULong storage_start, storage_limit; + FT_UInt count; + TT_NameTable table; + + static const FT_Frame_Field name_table_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_NameTableRec + + FT_FRAME_START( 6 ), + FT_FRAME_USHORT( format ), + FT_FRAME_USHORT( numNameRecords ), + FT_FRAME_USHORT( storageOffset ), + FT_FRAME_END + }; + + static const FT_Frame_Field name_record_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_NameEntryRec + + /* no FT_FRAME_START */ + FT_FRAME_USHORT( platformID ), + FT_FRAME_USHORT( encodingID ), + FT_FRAME_USHORT( languageID ), + FT_FRAME_USHORT( nameID ), + FT_FRAME_USHORT( stringLength ), + FT_FRAME_USHORT( stringOffset ), + FT_FRAME_END + }; + + + table = &face->name_table; + table->stream = stream; + + error = face->goto_table( face, TTAG_name, stream, &table_len ); + if ( error ) + goto Exit; + + table_pos = FT_STREAM_POS(); + + + if ( FT_STREAM_READ_FIELDS( name_table_fields, table ) ) + goto Exit; + + /* Some popular Asian fonts have an invalid `storageOffset' value */ + /* (it should be at least "6 + 12*num_names"). However, the string */ + /* offsets, computed as "storageOffset + entry->stringOffset", are */ + /* valid pointers within the name table... */ + /* */ + /* We thus can't check `storageOffset' right now. */ + /* */ + storage_start = table_pos + 6 + 12*table->numNameRecords; + storage_limit = table_pos + table_len; + + if ( storage_start > storage_limit ) + { + FT_ERROR(( "tt_face_load_name: invalid `name' table\n" )); + error = SFNT_Err_Name_Table_Missing; + goto Exit; + } + + /* Allocate the array of name records. */ + count = table->numNameRecords; + table->numNameRecords = 0; + + if ( FT_NEW_ARRAY( table->names, count ) || + FT_FRAME_ENTER( count * 12 ) ) + goto Exit; + + /* Load the name records and determine how much storage is needed */ + /* to hold the strings themselves. */ + { + TT_NameEntryRec* entry = table->names; + + + for ( ; count > 0; count-- ) + { + if ( FT_STREAM_READ_FIELDS( name_record_fields, entry ) ) + continue; + + /* check that the name is not empty */ + if ( entry->stringLength == 0 ) + continue; + + /* check that the name string is within the table */ + entry->stringOffset += table_pos + table->storageOffset; + if ( entry->stringOffset < storage_start || + entry->stringOffset + entry->stringLength > storage_limit ) + { + /* invalid entry - ignore it */ + entry->stringOffset = 0; + entry->stringLength = 0; + continue; + } + + entry++; + } + + table->numNameRecords = (FT_UInt)( entry - table->names ); + } + + FT_FRAME_EXIT(); + + /* everything went well, update face->num_names */ + face->num_names = (FT_UShort) table->numNameRecords; + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_free_names */ + /* */ + /* <Description> */ + /* Frees the name records. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + FT_LOCAL_DEF( void ) + tt_face_free_name( TT_Face face ) + { + FT_Memory memory = face->root.driver->root.memory; + TT_NameTable table = &face->name_table; + TT_NameEntry entry = table->names; + FT_UInt count = table->numNameRecords; + + + if ( table->names ) + { + for ( ; count > 0; count--, entry++ ) + { + FT_FREE( entry->string ); + entry->stringLength = 0; + } + + /* free strings table */ + FT_FREE( table->names ); + } + + table->numNameRecords = 0; + table->format = 0; + table->storageOffset = 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_cmap */ + /* */ + /* <Description> */ + /* Loads the cmap directory in a face object. The cmaps themselves */ + /* are loaded on demand in the `ttcmap.c' module. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_cmap( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + + + error = face->goto_table( face, TTAG_cmap, stream, &face->cmap_size ); + if ( error ) + goto Exit; + + if ( FT_FRAME_EXTRACT( face->cmap_size, face->cmap_table ) ) + face->cmap_size = 0; + + Exit: + return error; + } + + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_os2 */ + /* */ + /* <Description> */ + /* Loads the OS2 table. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_os2( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + TT_OS2* os2; + + const FT_Frame_Field os2_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_OS2 + + FT_FRAME_START( 78 ), + FT_FRAME_USHORT( version ), + FT_FRAME_SHORT ( xAvgCharWidth ), + FT_FRAME_USHORT( usWeightClass ), + FT_FRAME_USHORT( usWidthClass ), + FT_FRAME_SHORT ( fsType ), + FT_FRAME_SHORT ( ySubscriptXSize ), + FT_FRAME_SHORT ( ySubscriptYSize ), + FT_FRAME_SHORT ( ySubscriptXOffset ), + FT_FRAME_SHORT ( ySubscriptYOffset ), + FT_FRAME_SHORT ( ySuperscriptXSize ), + FT_FRAME_SHORT ( ySuperscriptYSize ), + FT_FRAME_SHORT ( ySuperscriptXOffset ), + FT_FRAME_SHORT ( ySuperscriptYOffset ), + FT_FRAME_SHORT ( yStrikeoutSize ), + FT_FRAME_SHORT ( yStrikeoutPosition ), + FT_FRAME_SHORT ( sFamilyClass ), + FT_FRAME_BYTE ( panose[0] ), + FT_FRAME_BYTE ( panose[1] ), + FT_FRAME_BYTE ( panose[2] ), + FT_FRAME_BYTE ( panose[3] ), + FT_FRAME_BYTE ( panose[4] ), + FT_FRAME_BYTE ( panose[5] ), + FT_FRAME_BYTE ( panose[6] ), + FT_FRAME_BYTE ( panose[7] ), + FT_FRAME_BYTE ( panose[8] ), + FT_FRAME_BYTE ( panose[9] ), + FT_FRAME_ULONG ( ulUnicodeRange1 ), + FT_FRAME_ULONG ( ulUnicodeRange2 ), + FT_FRAME_ULONG ( ulUnicodeRange3 ), + FT_FRAME_ULONG ( ulUnicodeRange4 ), + FT_FRAME_BYTE ( achVendID[0] ), + FT_FRAME_BYTE ( achVendID[1] ), + FT_FRAME_BYTE ( achVendID[2] ), + FT_FRAME_BYTE ( achVendID[3] ), + + FT_FRAME_USHORT( fsSelection ), + FT_FRAME_USHORT( usFirstCharIndex ), + FT_FRAME_USHORT( usLastCharIndex ), + FT_FRAME_SHORT ( sTypoAscender ), + FT_FRAME_SHORT ( sTypoDescender ), + FT_FRAME_SHORT ( sTypoLineGap ), + FT_FRAME_USHORT( usWinAscent ), + FT_FRAME_USHORT( usWinDescent ), + FT_FRAME_END + }; + + const FT_Frame_Field os2_fields_extra[] = + { + FT_FRAME_START( 8 ), + FT_FRAME_ULONG( ulCodePageRange1 ), + FT_FRAME_ULONG( ulCodePageRange2 ), + FT_FRAME_END + }; + + const FT_Frame_Field os2_fields_extra2[] = + { + FT_FRAME_START( 10 ), + FT_FRAME_SHORT ( sxHeight ), + FT_FRAME_SHORT ( sCapHeight ), + FT_FRAME_USHORT( usDefaultChar ), + FT_FRAME_USHORT( usBreakChar ), + FT_FRAME_USHORT( usMaxContext ), + FT_FRAME_END + }; + + + /* We now support old Mac fonts where the OS/2 table doesn't */ + /* exist. Simply put, we set the `version' field to 0xFFFF */ + /* and test this value each time we need to access the table. */ + error = face->goto_table( face, TTAG_OS2, stream, 0 ); + if ( error ) + goto Exit; + + os2 = &face->os2; + + if ( FT_STREAM_READ_FIELDS( os2_fields, os2 ) ) + goto Exit; + + os2->ulCodePageRange1 = 0; + os2->ulCodePageRange2 = 0; + os2->sxHeight = 0; + os2->sCapHeight = 0; + os2->usDefaultChar = 0; + os2->usBreakChar = 0; + os2->usMaxContext = 0; + + if ( os2->version >= 0x0001 ) + { + /* only version 1 tables */ + if ( FT_STREAM_READ_FIELDS( os2_fields_extra, os2 ) ) + goto Exit; + + if ( os2->version >= 0x0002 ) + { + /* only version 2 tables */ + if ( FT_STREAM_READ_FIELDS( os2_fields_extra2, os2 ) ) + goto Exit; + } + } + + FT_TRACE3(( "sTypoAscender: %4d\n", os2->sTypoAscender )); + FT_TRACE3(( "sTypoDescender: %4d\n", os2->sTypoDescender )); + FT_TRACE3(( "usWinAscent: %4u\n", os2->usWinAscent )); + FT_TRACE3(( "usWinDescent: %4u\n", os2->usWinDescent )); + FT_TRACE3(( "fsSelection: 0x%2x\n", os2->fsSelection )); + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_postscript */ + /* */ + /* <Description> */ + /* Loads the Postscript table. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_post( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + TT_Postscript* post = &face->postscript; + + static const FT_Frame_Field post_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_Postscript + + FT_FRAME_START( 32 ), + FT_FRAME_ULONG( FormatType ), + FT_FRAME_ULONG( italicAngle ), + FT_FRAME_SHORT( underlinePosition ), + FT_FRAME_SHORT( underlineThickness ), + FT_FRAME_ULONG( isFixedPitch ), + FT_FRAME_ULONG( minMemType42 ), + FT_FRAME_ULONG( maxMemType42 ), + FT_FRAME_ULONG( minMemType1 ), + FT_FRAME_ULONG( maxMemType1 ), + FT_FRAME_END + }; + + + error = face->goto_table( face, TTAG_post, stream, 0 ); + if ( error ) + return error; + + if ( FT_STREAM_READ_FIELDS( post_fields, post ) ) + return error; + + /* we don't load the glyph names, we do that in another */ + /* module (ttpost). */ + + FT_TRACE3(( "FormatType: 0x%x\n", post->FormatType )); + FT_TRACE3(( "isFixedPitch: %s\n", post->isFixedPitch + ? " yes" : " no" )); + + return SFNT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_pclt */ + /* */ + /* <Description> */ + /* Loads the PCL 5 Table. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_pclt( TT_Face face, + FT_Stream stream ) + { + static const FT_Frame_Field pclt_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_PCLT + + FT_FRAME_START( 54 ), + FT_FRAME_ULONG ( Version ), + FT_FRAME_ULONG ( FontNumber ), + FT_FRAME_USHORT( Pitch ), + FT_FRAME_USHORT( xHeight ), + FT_FRAME_USHORT( Style ), + FT_FRAME_USHORT( TypeFamily ), + FT_FRAME_USHORT( CapHeight ), + FT_FRAME_BYTES ( TypeFace, 16 ), + FT_FRAME_BYTES ( CharacterComplement, 8 ), + FT_FRAME_BYTES ( FileName, 6 ), + FT_FRAME_CHAR ( StrokeWeight ), + FT_FRAME_CHAR ( WidthType ), + FT_FRAME_BYTE ( SerifStyle ), + FT_FRAME_BYTE ( Reserved ), + FT_FRAME_END + }; + + FT_Error error; + TT_PCLT* pclt = &face->pclt; + + + /* optional table */ + error = face->goto_table( face, TTAG_PCLT, stream, 0 ); + if ( error ) + goto Exit; + + if ( FT_STREAM_READ_FIELDS( pclt_fields, pclt ) ) + goto Exit; + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_gasp */ + /* */ + /* <Description> */ + /* Loads the `gasp' table into a face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_gasp( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + FT_Memory memory = stream->memory; + + FT_UInt j,num_ranges; + TT_GaspRange gaspranges = NULL; + + + /* the gasp table is optional */ + error = face->goto_table( face, TTAG_gasp, stream, 0 ); + if ( error ) + goto Exit; + + if ( FT_FRAME_ENTER( 4L ) ) + goto Exit; + + face->gasp.version = FT_GET_USHORT(); + face->gasp.numRanges = FT_GET_USHORT(); + + FT_FRAME_EXIT(); + + /* only support versions 0 and 1 of the table */ + if ( face->gasp.version >= 2 ) + { + face->gasp.numRanges = 0; + error = SFNT_Err_Invalid_Table; + goto Exit; + } + + num_ranges = face->gasp.numRanges; + FT_TRACE3(( "numRanges: %u\n", num_ranges )); + + if ( FT_QNEW_ARRAY( gaspranges, num_ranges ) || + FT_FRAME_ENTER( num_ranges * 4L ) ) + goto Exit; + + face->gasp.gaspRanges = gaspranges; + + for ( j = 0; j < num_ranges; j++ ) + { + gaspranges[j].maxPPEM = FT_GET_USHORT(); + gaspranges[j].gaspFlag = FT_GET_USHORT(); + + FT_TRACE3(( "gaspRange %d: rangeMaxPPEM %5d, rangeGaspBehavior 0x%x\n", + j, + gaspranges[j].maxPPEM, + gaspranges[j].gaspFlag )); + } + + FT_FRAME_EXIT(); + + Exit: + return error; + } + + +/* END */ diff --git a/src/sfnt/ttload.h b/src/sfnt/ttload.h new file mode 100644 index 0000000..49a1aee --- /dev/null +++ b/src/sfnt/ttload.h @@ -0,0 +1,112 @@ +/***************************************************************************/ +/* */ +/* ttload.h */ +/* */ +/* Load the basic TrueType tables, i.e., tables that can be either in */ +/* TTF or OTF fonts (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTLOAD_H__ +#define __TTLOAD_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( TT_Table ) + tt_face_lookup_table( TT_Face face, + FT_ULong tag ); + + FT_LOCAL( FT_Error ) + tt_face_goto_table( TT_Face face, + FT_ULong tag, + FT_Stream stream, + FT_ULong* length ); + + + FT_LOCAL( FT_Error ) + tt_face_load_font_dir( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_any( TT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte* buffer, + FT_ULong* length ); + + + FT_LOCAL( FT_Error ) + tt_face_load_head( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_cmap( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_maxp( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_name( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_os2( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_post( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_pclt( TT_Face face, + FT_Stream stream ); + + FT_LOCAL( void ) + tt_face_free_name( TT_Face face ); + + + FT_LOCAL( FT_Error ) + tt_face_load_gasp( TT_Face face, + FT_Stream stream ); + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + FT_LOCAL( FT_Error ) + tt_face_load_bhed( TT_Face face, + FT_Stream stream ); + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + +FT_END_HEADER + +#endif /* __TTLOAD_H__ */ + + +/* END */ diff --git a/src/sfnt/ttmtx.c b/src/sfnt/ttmtx.c new file mode 100644 index 0000000..73ac8b2 --- /dev/null +++ b/src/sfnt/ttmtx.c @@ -0,0 +1,468 @@ +/***************************************************************************/ +/* */ +/* ttmtx.c */ +/* */ +/* Load the metrics tables common to TTF and OTF fonts (body). */ +/* */ +/* Copyright 2006-2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttmtx.h" + +#include "sferrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttmtx + + + /* + * Unfortunately, we can't enable our memory optimizations if + * FT_CONFIG_OPTION_OLD_INTERNALS is defined. This is because at least + * one rogue client (libXfont in the X.Org XServer) is directly accessing + * the metrics. + */ + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_hmtx */ + /* */ + /* <Description> */ + /* Load the `hmtx' or `vmtx' table into a face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* vertical :: A boolean flag. If set, load `vmtx'. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_hmtx( TT_Face face, + FT_Stream stream, + FT_Bool vertical ) + { + FT_Error error; + FT_ULong tag, table_size; + FT_ULong* ptable_offset; + FT_ULong* ptable_size; + + + if ( vertical ) + { + tag = TTAG_vmtx; + ptable_offset = &face->vert_metrics_offset; + ptable_size = &face->vert_metrics_size; + } + else + { + tag = TTAG_hmtx; + ptable_offset = &face->horz_metrics_offset; + ptable_size = &face->horz_metrics_size; + } + + error = face->goto_table( face, tag, stream, &table_size ); + if ( error ) + goto Fail; + + *ptable_size = table_size; + *ptable_offset = FT_STREAM_POS(); + + Fail: + return error; + } + +#else /* !FT_CONFIG_OPTION_OLD_INTERNALS */ + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_hmtx( TT_Face face, + FT_Stream stream, + FT_Bool vertical ) + { + FT_Error error; + FT_Memory memory = stream->memory; + + FT_ULong table_len; + FT_Long num_shorts, num_longs, num_shorts_checked; + + TT_LongMetrics* longs; + TT_ShortMetrics** shorts; + FT_Byte* p; + + + if ( vertical ) + { + void* lm = &face->vertical.long_metrics; + void** sm = &face->vertical.short_metrics; + + + error = face->goto_table( face, TTAG_vmtx, stream, &table_len ); + if ( error ) + goto Fail; + + num_longs = face->vertical.number_Of_VMetrics; + if ( (FT_ULong)num_longs > table_len / 4 ) + num_longs = (FT_Long)( table_len / 4 ); + + face->vertical.number_Of_VMetrics = 0; + + longs = (TT_LongMetrics*)lm; + shorts = (TT_ShortMetrics**)sm; + } + else + { + void* lm = &face->horizontal.long_metrics; + void** sm = &face->horizontal.short_metrics; + + + error = face->goto_table( face, TTAG_hmtx, stream, &table_len ); + if ( error ) + goto Fail; + + num_longs = face->horizontal.number_Of_HMetrics; + if ( (FT_ULong)num_longs > table_len / 4 ) + num_longs = (FT_Long)( table_len / 4 ); + + face->horizontal.number_Of_HMetrics = 0; + + longs = (TT_LongMetrics*)lm; + shorts = (TT_ShortMetrics**)sm; + } + + /* never trust derived values */ + + num_shorts = face->max_profile.numGlyphs - num_longs; + num_shorts_checked = ( table_len - num_longs * 4L ) / 2; + + if ( num_shorts < 0 ) + { + FT_TRACE0(( "tt_face_load_hmtx:" + " %cmtx has more metrics than glyphs.\n", + vertical ? 'v' : 'h' )); + + /* Adobe simply ignores this problem. So we shall do the same. */ +#if 0 + error = vertical ? SFNT_Err_Invalid_Vert_Metrics + : SFNT_Err_Invalid_Horiz_Metrics; + goto Exit; +#else + num_shorts = 0; +#endif + } + + if ( FT_QNEW_ARRAY( *longs, num_longs ) || + FT_QNEW_ARRAY( *shorts, num_shorts ) ) + goto Fail; + + if ( FT_FRAME_ENTER( table_len ) ) + goto Fail; + + p = stream->cursor; + + { + TT_LongMetrics cur = *longs; + TT_LongMetrics limit = cur + num_longs; + + + for ( ; cur < limit; cur++ ) + { + cur->advance = FT_NEXT_USHORT( p ); + cur->bearing = FT_NEXT_SHORT( p ); + } + } + + /* do we have an inconsistent number of metric values? */ + { + TT_ShortMetrics* cur = *shorts; + TT_ShortMetrics* limit = cur + + FT_MIN( num_shorts, num_shorts_checked ); + + + for ( ; cur < limit; cur++ ) + *cur = FT_NEXT_SHORT( p ); + + /* We fill up the missing left side bearings with the */ + /* last valid value. Since this will occur for buggy CJK */ + /* fonts usually only, nothing serious will happen. */ + if ( num_shorts > num_shorts_checked && num_shorts_checked > 0 ) + { + FT_Short val = (*shorts)[num_shorts_checked - 1]; + + + limit = *shorts + num_shorts; + for ( ; cur < limit; cur++ ) + *cur = val; + } + } + + FT_FRAME_EXIT(); + + if ( vertical ) + face->vertical.number_Of_VMetrics = (FT_UShort)num_longs; + else + face->horizontal.number_Of_HMetrics = (FT_UShort)num_longs; + + Fail: + return error; + } + +#endif /* !FT_CONFIG_OPTION_OLD_INTERNALS */ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_hhea */ + /* */ + /* <Description> */ + /* Load the `hhea' or 'vhea' table into a face object. */ + /* */ + /* <Input> */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* vertical :: A boolean flag. If set, load `vhea'. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_hhea( TT_Face face, + FT_Stream stream, + FT_Bool vertical ) + { + FT_Error error; + TT_HoriHeader* header; + + const FT_Frame_Field metrics_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_HoriHeader + + FT_FRAME_START( 36 ), + FT_FRAME_ULONG ( Version ), + FT_FRAME_SHORT ( Ascender ), + FT_FRAME_SHORT ( Descender ), + FT_FRAME_SHORT ( Line_Gap ), + FT_FRAME_USHORT( advance_Width_Max ), + FT_FRAME_SHORT ( min_Left_Side_Bearing ), + FT_FRAME_SHORT ( min_Right_Side_Bearing ), + FT_FRAME_SHORT ( xMax_Extent ), + FT_FRAME_SHORT ( caret_Slope_Rise ), + FT_FRAME_SHORT ( caret_Slope_Run ), + FT_FRAME_SHORT ( caret_Offset ), + FT_FRAME_SHORT ( Reserved[0] ), + FT_FRAME_SHORT ( Reserved[1] ), + FT_FRAME_SHORT ( Reserved[2] ), + FT_FRAME_SHORT ( Reserved[3] ), + FT_FRAME_SHORT ( metric_Data_Format ), + FT_FRAME_USHORT( number_Of_HMetrics ), + FT_FRAME_END + }; + + + if ( vertical ) + { + void *v = &face->vertical; + + + error = face->goto_table( face, TTAG_vhea, stream, 0 ); + if ( error ) + goto Fail; + + header = (TT_HoriHeader*)v; + } + else + { + error = face->goto_table( face, TTAG_hhea, stream, 0 ); + if ( error ) + goto Fail; + + header = &face->horizontal; + } + + if ( FT_STREAM_READ_FIELDS( metrics_header_fields, header ) ) + goto Fail; + + FT_TRACE3(( "Ascender: %5d\n", header->Ascender )); + FT_TRACE3(( "Descender: %5d\n", header->Descender )); + FT_TRACE3(( "number_Of_Metrics: %5u\n", header->number_Of_HMetrics )); + + header->long_metrics = NULL; + header->short_metrics = NULL; + + Fail: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_get_metrics */ + /* */ + /* <Description> */ + /* Returns the horizontal or vertical metrics in font units for a */ + /* given glyph. The metrics are the left side bearing (resp. top */ + /* side bearing) and advance width (resp. advance height). */ + /* */ + /* <Input> */ + /* header :: A pointer to either the horizontal or vertical metrics */ + /* structure. */ + /* */ + /* idx :: The glyph index. */ + /* */ + /* <Output> */ + /* bearing :: The bearing, either left side or top side. */ + /* */ + /* advance :: The advance width resp. advance height. */ + /* */ +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + + FT_LOCAL_DEF( FT_Error ) + tt_face_get_metrics( TT_Face face, + FT_Bool vertical, + FT_UInt gindex, + FT_Short *abearing, + FT_UShort *aadvance ) + { + FT_Error error; + FT_Stream stream = face->root.stream; + TT_HoriHeader* header; + FT_ULong table_pos, table_size, table_end; + FT_UShort k; + + + if ( vertical ) + { + void* v = &face->vertical; + + + header = (TT_HoriHeader*)v; + table_pos = face->vert_metrics_offset; + table_size = face->vert_metrics_size; + } + else + { + header = &face->horizontal; + table_pos = face->horz_metrics_offset; + table_size = face->horz_metrics_size; + } + + table_end = table_pos + table_size; + + k = header->number_Of_HMetrics; + + if ( k > 0 ) + { + if ( gindex < (FT_UInt)k ) + { + table_pos += 4 * gindex; + if ( table_pos + 4 > table_end ) + goto NoData; + + if ( FT_STREAM_SEEK( table_pos ) || + FT_READ_USHORT( *aadvance ) || + FT_READ_SHORT( *abearing ) ) + goto NoData; + } + else + { + table_pos += 4 * ( k - 1 ); + if ( table_pos + 4 > table_end ) + goto NoData; + + if ( FT_STREAM_SEEK( table_pos ) || + FT_READ_USHORT( *aadvance ) ) + goto NoData; + + table_pos += 4 + 2 * ( gindex - k ); + if ( table_pos + 2 > table_end ) + *abearing = 0; + else + { + if ( !FT_STREAM_SEEK( table_pos ) ) + (void)FT_READ_SHORT( *abearing ); + } + } + } + else + { + NoData: + *abearing = 0; + *aadvance = 0; + } + + return SFNT_Err_Ok; + } + +#else /* !FT_CONFIG_OPTION_OLD_INTERNALS */ + + FT_LOCAL_DEF( FT_Error ) + tt_face_get_metrics( TT_Face face, + FT_Bool vertical, + FT_UInt gindex, + FT_Short* abearing, + FT_UShort* aadvance ) + { + void* v = &face->vertical; + void* h = &face->horizontal; + TT_HoriHeader* header = vertical ? (TT_HoriHeader*)v + : (TT_HoriHeader*)h; + TT_LongMetrics longs_m; + FT_UShort k = header->number_Of_HMetrics; + + + if ( k == 0 || + !header->long_metrics || + gindex >= (FT_UInt)face->max_profile.numGlyphs ) + { + *abearing = *aadvance = 0; + return SFNT_Err_Ok; + } + + if ( gindex < (FT_UInt)k ) + { + longs_m = (TT_LongMetrics)header->long_metrics + gindex; + *abearing = longs_m->bearing; + *aadvance = longs_m->advance; + } + else + { + *abearing = ((TT_ShortMetrics*)header->short_metrics)[gindex - k]; + *aadvance = ((TT_LongMetrics)header->long_metrics)[k - 1].advance; + } + + return SFNT_Err_Ok; + } + +#endif /* !FT_CONFIG_OPTION_OLD_INTERNALS */ + + +/* END */ diff --git a/src/sfnt/ttmtx.h b/src/sfnt/ttmtx.h new file mode 100644 index 0000000..8b91a11 --- /dev/null +++ b/src/sfnt/ttmtx.h @@ -0,0 +1,55 @@ +/***************************************************************************/ +/* */ +/* ttmtx.h */ +/* */ +/* Load the metrics tables common to TTF and OTF fonts (specification). */ +/* */ +/* Copyright 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTMTX_H__ +#define __TTMTX_H__ + + +#include <ft2build.h> +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + tt_face_load_hhea( TT_Face face, + FT_Stream stream, + FT_Bool vertical ); + + + FT_LOCAL( FT_Error ) + tt_face_load_hmtx( TT_Face face, + FT_Stream stream, + FT_Bool vertical ); + + + FT_LOCAL( FT_Error ) + tt_face_get_metrics( TT_Face face, + FT_Bool vertical, + FT_UInt gindex, + FT_Short* abearing, + FT_UShort* aadvance ); + +FT_END_HEADER + +#endif /* __TTMTX_H__ */ + + +/* END */ diff --git a/src/sfnt/ttpost.c b/src/sfnt/ttpost.c new file mode 100644 index 0000000..6f4bb1d --- /dev/null +++ b/src/sfnt/ttpost.c @@ -0,0 +1,563 @@ +/***************************************************************************/ +/* */ +/* ttpost.c */ +/* */ +/* Postcript name table processing for TrueType and OpenType fonts */ +/* (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2006, 2007, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* The post table is not completely loaded by the core engine. This */ + /* file loads the missing PS glyph names and implements an API to access */ + /* them. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttpost.h" + +#include "sferrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttpost + + + /* If this configuration macro is defined, we rely on the `PSNames' */ + /* module to grab the glyph names. */ + +#ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES + + +#include FT_SERVICE_POSTSCRIPT_CMAPS_H + +#define MAC_NAME( x ) ( (FT_String*)psnames->macintosh_name( x ) ) + + +#else /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES */ + + + /* Otherwise, we ignore the `PSNames' module, and provide our own */ + /* table of Mac names. Thus, it is possible to build a version of */ + /* FreeType without the Type 1 driver & PSNames module. */ + +#define MAC_NAME( x ) ( (FT_String*)tt_post_default_names[x] ) + + /* the 258 default Mac PS glyph names */ + + static const FT_String* const tt_post_default_names[258] = + { + /* 0 */ + ".notdef", ".null", "CR", "space", "exclam", + "quotedbl", "numbersign", "dollar", "percent", "ampersand", + /* 10 */ + "quotesingle", "parenleft", "parenright", "asterisk", "plus", + "comma", "hyphen", "period", "slash", "zero", + /* 20 */ + "one", "two", "three", "four", "five", + "six", "seven", "eight", "nine", "colon", + /* 30 */ + "semicolon", "less", "equal", "greater", "question", + "at", "A", "B", "C", "D", + /* 40 */ + "E", "F", "G", "H", "I", + "J", "K", "L", "M", "N", + /* 50 */ + "O", "P", "Q", "R", "S", + "T", "U", "V", "W", "X", + /* 60 */ + "Y", "Z", "bracketleft", "backslash", "bracketright", + "asciicircum", "underscore", "grave", "a", "b", + /* 70 */ + "c", "d", "e", "f", "g", + "h", "i", "j", "k", "l", + /* 80 */ + "m", "n", "o", "p", "q", + "r", "s", "t", "u", "v", + /* 90 */ + "w", "x", "y", "z", "braceleft", + "bar", "braceright", "asciitilde", "Adieresis", "Aring", + /* 100 */ + "Ccedilla", "Eacute", "Ntilde", "Odieresis", "Udieresis", + "aacute", "agrave", "acircumflex", "adieresis", "atilde", + /* 110 */ + "aring", "ccedilla", "eacute", "egrave", "ecircumflex", + "edieresis", "iacute", "igrave", "icircumflex", "idieresis", + /* 120 */ + "ntilde", "oacute", "ograve", "ocircumflex", "odieresis", + "otilde", "uacute", "ugrave", "ucircumflex", "udieresis", + /* 130 */ + "dagger", "degree", "cent", "sterling", "section", + "bullet", "paragraph", "germandbls", "registered", "copyright", + /* 140 */ + "trademark", "acute", "dieresis", "notequal", "AE", + "Oslash", "infinity", "plusminus", "lessequal", "greaterequal", + /* 150 */ + "yen", "mu", "partialdiff", "summation", "product", + "pi", "integral", "ordfeminine", "ordmasculine", "Omega", + /* 160 */ + "ae", "oslash", "questiondown", "exclamdown", "logicalnot", + "radical", "florin", "approxequal", "Delta", "guillemotleft", + /* 170 */ + "guillemotright", "ellipsis", "nbspace", "Agrave", "Atilde", + "Otilde", "OE", "oe", "endash", "emdash", + /* 180 */ + "quotedblleft", "quotedblright", "quoteleft", "quoteright", "divide", + "lozenge", "ydieresis", "Ydieresis", "fraction", "currency", + /* 190 */ + "guilsinglleft", "guilsinglright", "fi", "fl", "daggerdbl", + "periodcentered", "quotesinglbase", "quotedblbase", "perthousand", "Acircumflex", + /* 200 */ + "Ecircumflex", "Aacute", "Edieresis", "Egrave", "Iacute", + "Icircumflex", "Idieresis", "Igrave", "Oacute", "Ocircumflex", + /* 210 */ + "apple", "Ograve", "Uacute", "Ucircumflex", "Ugrave", + "dotlessi", "circumflex", "tilde", "macron", "breve", + /* 220 */ + "dotaccent", "ring", "cedilla", "hungarumlaut", "ogonek", + "caron", "Lslash", "lslash", "Scaron", "scaron", + /* 230 */ + "Zcaron", "zcaron", "brokenbar", "Eth", "eth", + "Yacute", "yacute", "Thorn", "thorn", "minus", + /* 240 */ + "multiply", "onesuperior", "twosuperior", "threesuperior", "onehalf", + "onequarter", "threequarters", "franc", "Gbreve", "gbreve", + /* 250 */ + "Idot", "Scedilla", "scedilla", "Cacute", "cacute", + "Ccaron", "ccaron", "dmacron", + }; + + +#endif /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES */ + + + static FT_Error + load_format_20( TT_Face face, + FT_Stream stream, + FT_Long post_limit ) + { + FT_Memory memory = stream->memory; + FT_Error error; + + FT_Int num_glyphs; + FT_UShort num_names; + + FT_UShort* glyph_indices = 0; + FT_Char** name_strings = 0; + + + if ( FT_READ_USHORT( num_glyphs ) ) + goto Exit; + + /* UNDOCUMENTED! The number of glyphs in this table can be smaller */ + /* than the value in the maxp table (cf. cyberbit.ttf). */ + + /* There already exist fonts which have more than 32768 glyph names */ + /* in this table, so the test for this threshold has been dropped. */ + + if ( num_glyphs > face->max_profile.numGlyphs ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + /* load the indices */ + { + FT_Int n; + + + if ( FT_NEW_ARRAY ( glyph_indices, num_glyphs ) || + FT_FRAME_ENTER( num_glyphs * 2L ) ) + goto Fail; + + for ( n = 0; n < num_glyphs; n++ ) + glyph_indices[n] = FT_GET_USHORT(); + + FT_FRAME_EXIT(); + } + + /* compute number of names stored in table */ + { + FT_Int n; + + + num_names = 0; + + for ( n = 0; n < num_glyphs; n++ ) + { + FT_Int idx; + + + idx = glyph_indices[n]; + if ( idx >= 258 ) + { + idx -= 257; + if ( idx > num_names ) + num_names = (FT_UShort)idx; + } + } + } + + /* now load the name strings */ + { + FT_UShort n; + + + if ( FT_NEW_ARRAY( name_strings, num_names ) ) + goto Fail; + + for ( n = 0; n < num_names; n++ ) + { + FT_UInt len; + + + if ( FT_STREAM_POS() >= post_limit ) + break; + else + { + FT_TRACE6(( "load_format_20: %d byte left in post table\n", + post_limit - FT_STREAM_POS() )); + + if ( FT_READ_BYTE( len ) ) + goto Fail1; + } + + if ( (FT_Int)len > post_limit || + FT_STREAM_POS() > post_limit - (FT_Int)len ) + { + FT_ERROR(( "load_format_20:" + " exceeding string length (%d)," + " truncating at end of post table (%d byte left)\n", + len, post_limit - FT_STREAM_POS() )); + len = FT_MAX( 0, post_limit - FT_STREAM_POS() ); + } + + if ( FT_NEW_ARRAY( name_strings[n], len + 1 ) || + FT_STREAM_READ( name_strings[n], len ) ) + goto Fail1; + + name_strings[n][len] = '\0'; + } + + if ( n < num_names ) + { + FT_ERROR(( "load_format_20:" + " all entries in post table are already parsed," + " using NULL names for gid %d - %d\n", + n, num_names - 1 )); + for ( ; n < num_names; n++ ) + if ( FT_NEW_ARRAY( name_strings[n], 1 ) ) + goto Fail1; + else + name_strings[n][0] = '\0'; + } + } + + /* all right, set table fields and exit successfully */ + { + TT_Post_20 table = &face->postscript_names.names.format_20; + + + table->num_glyphs = (FT_UShort)num_glyphs; + table->num_names = (FT_UShort)num_names; + table->glyph_indices = glyph_indices; + table->glyph_names = name_strings; + } + return SFNT_Err_Ok; + + Fail1: + { + FT_UShort n; + + + for ( n = 0; n < num_names; n++ ) + FT_FREE( name_strings[n] ); + } + + Fail: + FT_FREE( name_strings ); + FT_FREE( glyph_indices ); + + Exit: + return error; + } + + + static FT_Error + load_format_25( TT_Face face, + FT_Stream stream, + FT_Long post_limit ) + { + FT_Memory memory = stream->memory; + FT_Error error; + + FT_Int num_glyphs; + FT_Char* offset_table = 0; + + FT_UNUSED( post_limit ); + + + /* UNDOCUMENTED! This value appears only in the Apple TT specs. */ + if ( FT_READ_USHORT( num_glyphs ) ) + goto Exit; + + /* check the number of glyphs */ + if ( num_glyphs > face->max_profile.numGlyphs || num_glyphs > 258 ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + if ( FT_NEW_ARRAY( offset_table, num_glyphs ) || + FT_STREAM_READ( offset_table, num_glyphs ) ) + goto Fail; + + /* now check the offset table */ + { + FT_Int n; + + + for ( n = 0; n < num_glyphs; n++ ) + { + FT_Long idx = (FT_Long)n + offset_table[n]; + + + if ( idx < 0 || idx > num_glyphs ) + { + error = SFNT_Err_Invalid_File_Format; + goto Fail; + } + } + } + + /* OK, set table fields and exit successfully */ + { + TT_Post_25 table = &face->postscript_names.names.format_25; + + + table->num_glyphs = (FT_UShort)num_glyphs; + table->offsets = offset_table; + } + + return SFNT_Err_Ok; + + Fail: + FT_FREE( offset_table ); + + Exit: + return error; + } + + + static FT_Error + load_post_names( TT_Face face ) + { + FT_Stream stream; + FT_Error error; + FT_Fixed format; + FT_ULong post_len; + FT_Long post_limit; + + + /* get a stream for the face's resource */ + stream = face->root.stream; + + /* seek to the beginning of the PS names table */ + error = face->goto_table( face, TTAG_post, stream, &post_len ); + if ( error ) + goto Exit; + + post_limit = FT_STREAM_POS() + post_len; + + format = face->postscript.FormatType; + + /* go to beginning of subtable */ + if ( FT_STREAM_SKIP( 32 ) ) + goto Exit; + + /* now read postscript table */ + if ( format == 0x00020000L ) + error = load_format_20( face, stream, post_limit ); + else if ( format == 0x00028000L ) + error = load_format_25( face, stream, post_limit ); + else + error = SFNT_Err_Invalid_File_Format; + + face->postscript_names.loaded = 1; + + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + tt_face_free_ps_names( TT_Face face ) + { + FT_Memory memory = face->root.memory; + TT_Post_Names names = &face->postscript_names; + FT_Fixed format; + + + if ( names->loaded ) + { + format = face->postscript.FormatType; + + if ( format == 0x00020000L ) + { + TT_Post_20 table = &names->names.format_20; + FT_UShort n; + + + FT_FREE( table->glyph_indices ); + table->num_glyphs = 0; + + for ( n = 0; n < table->num_names; n++ ) + FT_FREE( table->glyph_names[n] ); + + FT_FREE( table->glyph_names ); + table->num_names = 0; + } + else if ( format == 0x00028000L ) + { + TT_Post_25 table = &names->names.format_25; + + + FT_FREE( table->offsets ); + table->num_glyphs = 0; + } + } + names->loaded = 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_get_ps_name */ + /* */ + /* <Description> */ + /* Get the PostScript glyph name of a glyph. */ + /* */ + /* <Input> */ + /* face :: A handle to the parent face. */ + /* */ + /* idx :: The glyph index. */ + /* */ + /* <InOut> */ + /* PSname :: The address of a string pointer. Will be NULL in case */ + /* of error, otherwise it is a pointer to the glyph name. */ + /* */ + /* You must not modify the returned string! */ + /* */ + /* <Output> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_get_ps_name( TT_Face face, + FT_UInt idx, + FT_String** PSname ) + { + FT_Error error; + TT_Post_Names names; + FT_Fixed format; + +#ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES + FT_Service_PsCMaps psnames; +#endif + + + if ( !face ) + return SFNT_Err_Invalid_Face_Handle; + + if ( idx >= (FT_UInt)face->max_profile.numGlyphs ) + return SFNT_Err_Invalid_Glyph_Index; + +#ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES + psnames = (FT_Service_PsCMaps)face->psnames; + if ( !psnames ) + return SFNT_Err_Unimplemented_Feature; +#endif + + names = &face->postscript_names; + + /* `.notdef' by default */ + *PSname = MAC_NAME( 0 ); + + format = face->postscript.FormatType; + + if ( format == 0x00010000L ) + { + if ( idx < 258 ) /* paranoid checking */ + *PSname = MAC_NAME( idx ); + } + else if ( format == 0x00020000L ) + { + TT_Post_20 table = &names->names.format_20; + + + if ( !names->loaded ) + { + error = load_post_names( face ); + if ( error ) + goto End; + } + + if ( idx < (FT_UInt)table->num_glyphs ) + { + FT_UShort name_index = table->glyph_indices[idx]; + + + if ( name_index < 258 ) + *PSname = MAC_NAME( name_index ); + else + *PSname = (FT_String*)table->glyph_names[name_index - 258]; + } + } + else if ( format == 0x00028000L ) + { + TT_Post_25 table = &names->names.format_25; + + + if ( !names->loaded ) + { + error = load_post_names( face ); + if ( error ) + goto End; + } + + if ( idx < (FT_UInt)table->num_glyphs ) /* paranoid checking */ + { + idx += table->offsets[idx]; + *PSname = MAC_NAME( idx ); + } + } + + /* nothing to do for format == 0x00030000L */ + + End: + return SFNT_Err_Ok; + } + + +/* END */ diff --git a/src/sfnt/ttpost.h b/src/sfnt/ttpost.h new file mode 100644 index 0000000..6f06d75 --- /dev/null +++ b/src/sfnt/ttpost.h @@ -0,0 +1,46 @@ +/***************************************************************************/ +/* */ +/* ttpost.h */ +/* */ +/* Postcript name table processing for TrueType and OpenType fonts */ +/* (specification). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTPOST_H__ +#define __TTPOST_H__ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + tt_face_get_ps_name( TT_Face face, + FT_UInt idx, + FT_String** PSname ); + + FT_LOCAL( void ) + tt_face_free_ps_names( TT_Face face ); + + +FT_END_HEADER + +#endif /* __TTPOST_H__ */ + + +/* END */ diff --git a/src/sfnt/ttsbit.c b/src/sfnt/ttsbit.c new file mode 100644 index 0000000..283ba7e --- /dev/null +++ b/src/sfnt/ttsbit.c @@ -0,0 +1,1508 @@ +/***************************************************************************/ +/* */ +/* ttsbit.c */ +/* */ +/* TrueType and OpenType embedded bitmap support (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ +/* 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H + + /* + * Alas, the memory-optimized sbit loader can't be used when implementing + * the `old internals' hack + */ +#ifndef FT_CONFIG_OPTION_OLD_INTERNALS + +#include "ttsbit0.c" + +#else /* FT_CONFIG_OPTION_OLD_INTERNALS */ + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttsbit.h" + +#include "sferrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttsbit + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* blit_sbit */ + /* */ + /* <Description> */ + /* Blits a bitmap from an input stream into a given target. Supports */ + /* x and y offsets as well as byte padded lines. */ + /* */ + /* <Input> */ + /* target :: The target bitmap/pixmap. */ + /* */ + /* source :: The input packed bitmap data. */ + /* */ + /* line_bits :: The number of bits per line. */ + /* */ + /* byte_padded :: A flag which is true if lines are byte-padded. */ + /* */ + /* x_offset :: The horizontal offset. */ + /* */ + /* y_offset :: The vertical offset. */ + /* */ + /* <Note> */ + /* IMPORTANT: The x and y offsets are relative to the top corner of */ + /* the target bitmap (unlike the normal TrueType */ + /* convention). A positive y offset indicates a downwards */ + /* direction! */ + /* */ + static void + blit_sbit( FT_Bitmap* target, + FT_Byte* source, + FT_Int line_bits, + FT_Bool byte_padded, + FT_Int x_offset, + FT_Int y_offset, + FT_Int source_height ) + { + FT_Byte* line_buff; + FT_Int line_incr; + FT_Int height; + + FT_UShort acc; + FT_UInt loaded; + + + /* first of all, compute starting write position */ + line_incr = target->pitch; + line_buff = target->buffer; + + if ( line_incr < 0 ) + line_buff -= line_incr * ( target->rows - 1 ); + + line_buff += ( x_offset >> 3 ) + y_offset * line_incr; + + /***********************************************************************/ + /* */ + /* We use the extra-classic `accumulator' trick to extract the bits */ + /* from the source byte stream. */ + /* */ + /* Namely, the variable `acc' is a 16-bit accumulator containing the */ + /* last `loaded' bits from the input stream. The bits are shifted to */ + /* the upmost position in `acc'. */ + /* */ + /***********************************************************************/ + + acc = 0; /* clear accumulator */ + loaded = 0; /* no bits were loaded */ + + for ( height = source_height; height > 0; height-- ) + { + FT_Byte* cur = line_buff; /* current write cursor */ + FT_Int count = line_bits; /* # of bits to extract per line */ + FT_Byte shift = (FT_Byte)( x_offset & 7 ); /* current write shift */ + FT_Byte space = (FT_Byte)( 8 - shift ); + + + /* first of all, read individual source bytes */ + if ( count >= 8 ) + { + count -= 8; + { + do + { + FT_Byte val; + + + /* ensure that there are at least 8 bits in the accumulator */ + if ( loaded < 8 ) + { + acc |= (FT_UShort)((FT_UShort)*source++ << ( 8 - loaded )); + loaded += 8; + } + + /* now write one byte */ + val = (FT_Byte)( acc >> 8 ); + if ( shift ) + { + cur[0] |= (FT_Byte)( val >> shift ); + cur[1] |= (FT_Byte)( val << space ); + } + else + cur[0] |= val; + + cur++; + acc <<= 8; /* remove bits from accumulator */ + loaded -= 8; + count -= 8; + + } while ( count >= 0 ); + } + + /* restore `count' to correct value */ + count += 8; + } + + /* now write remaining bits (count < 8) */ + if ( count > 0 ) + { + FT_Byte val; + + + /* ensure that there are at least `count' bits in the accumulator */ + if ( (FT_Int)loaded < count ) + { + acc |= (FT_UShort)((FT_UShort)*source++ << ( 8 - loaded )); + loaded += 8; + } + + /* now write remaining bits */ + val = (FT_Byte)( ( (FT_Byte)( acc >> 8 ) ) & ~( 0xFF >> count ) ); + cur[0] |= (FT_Byte)( val >> shift ); + + if ( count > space ) + cur[1] |= (FT_Byte)( val << space ); + + acc <<= count; + loaded -= count; + } + + /* now, skip to next line */ + if ( byte_padded ) + { + acc = 0; + loaded = 0; /* clear accumulator on byte-padded lines */ + } + + line_buff += line_incr; + } + } + + + static const FT_Frame_Field sbit_metrics_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_SBit_MetricsRec + + FT_FRAME_START( 8 ), + FT_FRAME_BYTE( height ), + FT_FRAME_BYTE( width ), + + FT_FRAME_CHAR( horiBearingX ), + FT_FRAME_CHAR( horiBearingY ), + FT_FRAME_BYTE( horiAdvance ), + + FT_FRAME_CHAR( vertBearingX ), + FT_FRAME_CHAR( vertBearingY ), + FT_FRAME_BYTE( vertAdvance ), + FT_FRAME_END + }; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Load_SBit_Const_Metrics */ + /* */ + /* <Description> */ + /* Loads the metrics for `EBLC' index tables format 2 and 5. */ + /* */ + /* <Input> */ + /* range :: The target range. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + Load_SBit_Const_Metrics( TT_SBit_Range range, + FT_Stream stream ) + { + FT_Error error; + + + if ( FT_READ_ULONG( range->image_size ) ) + return error; + + return FT_STREAM_READ_FIELDS( sbit_metrics_fields, &range->metrics ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Load_SBit_Range_Codes */ + /* */ + /* <Description> */ + /* Loads the range codes for `EBLC' index tables format 4 and 5. */ + /* */ + /* <Input> */ + /* range :: The target range. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* load_offsets :: A flag whether to load the glyph offset table. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + Load_SBit_Range_Codes( TT_SBit_Range range, + FT_Stream stream, + FT_Bool load_offsets ) + { + FT_Error error; + FT_ULong count, n, size; + FT_Memory memory = stream->memory; + + + if ( FT_READ_ULONG( count ) ) + goto Exit; + + range->num_glyphs = count; + + /* Allocate glyph offsets table if needed */ + if ( load_offsets ) + { + if ( FT_NEW_ARRAY( range->glyph_offsets, count ) ) + goto Exit; + + size = count * 4L; + } + else + size = count * 2L; + + /* Allocate glyph codes table and access frame */ + if ( FT_NEW_ARRAY ( range->glyph_codes, count ) || + FT_FRAME_ENTER( size ) ) + goto Exit; + + for ( n = 0; n < count; n++ ) + { + range->glyph_codes[n] = FT_GET_USHORT(); + + if ( load_offsets ) + range->glyph_offsets[n] = (FT_ULong)range->image_offset + + FT_GET_USHORT(); + } + + FT_FRAME_EXIT(); + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Load_SBit_Range */ + /* */ + /* <Description> */ + /* Loads a given `EBLC' index/range table. */ + /* */ + /* <Input> */ + /* range :: The target range. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + Load_SBit_Range( TT_SBit_Range range, + FT_Stream stream ) + { + FT_Error error; + FT_Memory memory = stream->memory; + + + switch( range->index_format ) + { + case 1: /* variable metrics with 4-byte offsets */ + case 3: /* variable metrics with 2-byte offsets */ + { + FT_ULong num_glyphs, n; + FT_Int size_elem; + FT_Bool large = FT_BOOL( range->index_format == 1 ); + + + + if ( range->last_glyph < range->first_glyph ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + num_glyphs = range->last_glyph - range->first_glyph + 1L; + range->num_glyphs = num_glyphs; + num_glyphs++; /* XXX: BEWARE - see spec */ + + size_elem = large ? 4 : 2; + + if ( FT_NEW_ARRAY( range->glyph_offsets, num_glyphs ) || + FT_FRAME_ENTER( num_glyphs * size_elem ) ) + goto Exit; + + for ( n = 0; n < num_glyphs; n++ ) + range->glyph_offsets[n] = (FT_ULong)( range->image_offset + + ( large ? FT_GET_ULONG() + : FT_GET_USHORT() ) ); + FT_FRAME_EXIT(); + } + break; + + case 2: /* all glyphs have identical metrics */ + error = Load_SBit_Const_Metrics( range, stream ); + break; + + case 4: + error = Load_SBit_Range_Codes( range, stream, 1 ); + break; + + case 5: + error = Load_SBit_Const_Metrics( range, stream ); + if ( !error ) + error = Load_SBit_Range_Codes( range, stream, 0 ); + break; + + default: + error = SFNT_Err_Invalid_File_Format; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_eblc */ + /* */ + /* <Description> */ + /* Loads the table of embedded bitmap sizes for this face. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_eblc( TT_Face face, + FT_Stream stream ) + { + FT_Error error = SFNT_Err_Ok; + FT_Memory memory = stream->memory; + FT_Fixed version; + FT_ULong num_strikes; + FT_ULong table_base; + + static const FT_Frame_Field sbit_line_metrics_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_SBit_LineMetricsRec + + /* no FT_FRAME_START */ + FT_FRAME_CHAR( ascender ), + FT_FRAME_CHAR( descender ), + FT_FRAME_BYTE( max_width ), + + FT_FRAME_CHAR( caret_slope_numerator ), + FT_FRAME_CHAR( caret_slope_denominator ), + FT_FRAME_CHAR( caret_offset ), + + FT_FRAME_CHAR( min_origin_SB ), + FT_FRAME_CHAR( min_advance_SB ), + FT_FRAME_CHAR( max_before_BL ), + FT_FRAME_CHAR( min_after_BL ), + FT_FRAME_CHAR( pads[0] ), + FT_FRAME_CHAR( pads[1] ), + FT_FRAME_END + }; + + static const FT_Frame_Field strike_start_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_SBit_StrikeRec + + /* no FT_FRAME_START */ + FT_FRAME_ULONG( ranges_offset ), + FT_FRAME_SKIP_LONG, + FT_FRAME_ULONG( num_ranges ), + FT_FRAME_ULONG( color_ref ), + FT_FRAME_END + }; + + static const FT_Frame_Field strike_end_fields[] = + { + /* no FT_FRAME_START */ + FT_FRAME_USHORT( start_glyph ), + FT_FRAME_USHORT( end_glyph ), + FT_FRAME_BYTE ( x_ppem ), + FT_FRAME_BYTE ( y_ppem ), + FT_FRAME_BYTE ( bit_depth ), + FT_FRAME_CHAR ( flags ), + FT_FRAME_END + }; + + + face->num_sbit_strikes = 0; + + /* this table is optional */ + error = face->goto_table( face, TTAG_EBLC, stream, 0 ); + if ( error ) + error = face->goto_table( face, TTAG_bloc, stream, 0 ); + if ( error ) + goto Exit; + + table_base = FT_STREAM_POS(); + if ( FT_FRAME_ENTER( 8L ) ) + goto Exit; + + version = FT_GET_LONG(); + num_strikes = FT_GET_ULONG(); + + FT_FRAME_EXIT(); + + /* check version number and strike count */ + if ( version != 0x00020000L || + num_strikes >= 0x10000L ) + { + FT_ERROR(( "tt_face_load_sbit_strikes: invalid table version\n" )); + error = SFNT_Err_Invalid_File_Format; + + goto Exit; + } + + /* allocate the strikes table */ + if ( FT_NEW_ARRAY( face->sbit_strikes, num_strikes ) ) + goto Exit; + + face->num_sbit_strikes = num_strikes; + + /* now read each strike table separately */ + { + TT_SBit_Strike strike = face->sbit_strikes; + FT_ULong count = num_strikes; + + + if ( FT_FRAME_ENTER( 48L * num_strikes ) ) + goto Exit; + + while ( count > 0 ) + { + if ( FT_STREAM_READ_FIELDS( strike_start_fields, strike ) || + FT_STREAM_READ_FIELDS( sbit_line_metrics_fields, &strike->hori ) || + FT_STREAM_READ_FIELDS( sbit_line_metrics_fields, &strike->vert ) || + FT_STREAM_READ_FIELDS( strike_end_fields, strike ) ) + break; + + count--; + strike++; + } + + FT_FRAME_EXIT(); + } + + /* allocate the index ranges for each strike table */ + { + TT_SBit_Strike strike = face->sbit_strikes; + FT_ULong count = num_strikes; + + + while ( count > 0 ) + { + TT_SBit_Range range; + FT_ULong count2 = strike->num_ranges; + + + /* read each range */ + if ( FT_STREAM_SEEK( table_base + strike->ranges_offset ) || + FT_FRAME_ENTER( strike->num_ranges * 8L ) ) + goto Exit; + + if ( FT_NEW_ARRAY( strike->sbit_ranges, strike->num_ranges ) ) + goto Exit; + + range = strike->sbit_ranges; + while ( count2 > 0 ) + { + range->first_glyph = FT_GET_USHORT(); + range->last_glyph = FT_GET_USHORT(); + range->table_offset = table_base + strike->ranges_offset + + FT_GET_ULONG(); + count2--; + range++; + } + + FT_FRAME_EXIT(); + + /* Now, read each index table */ + count2 = strike->num_ranges; + range = strike->sbit_ranges; + while ( count2 > 0 ) + { + /* Read the header */ + if ( FT_STREAM_SEEK( range->table_offset ) || + FT_FRAME_ENTER( 8L ) ) + goto Exit; + + range->index_format = FT_GET_USHORT(); + range->image_format = FT_GET_USHORT(); + range->image_offset = FT_GET_ULONG(); + + FT_FRAME_EXIT(); + + error = Load_SBit_Range( range, stream ); + if ( error ) + goto Exit; + + count2--; + range++; + } + + count--; + strike++; + } + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_free_eblc */ + /* */ + /* <Description> */ + /* Releases the embedded bitmap tables. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + FT_LOCAL_DEF( void ) + tt_face_free_eblc( TT_Face face ) + { + FT_Memory memory = face->root.memory; + TT_SBit_Strike strike = face->sbit_strikes; + TT_SBit_Strike strike_limit = strike + face->num_sbit_strikes; + + + if ( strike ) + { + for ( ; strike < strike_limit; strike++ ) + { + TT_SBit_Range range = strike->sbit_ranges; + TT_SBit_Range range_limit = range + strike->num_ranges; + + + if ( range ) + { + for ( ; range < range_limit; range++ ) + { + /* release the glyph offsets and codes tables */ + /* where appropriate */ + FT_FREE( range->glyph_offsets ); + FT_FREE( range->glyph_codes ); + } + } + FT_FREE( strike->sbit_ranges ); + strike->num_ranges = 0; + } + FT_FREE( face->sbit_strikes ); + } + face->num_sbit_strikes = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + tt_face_set_sbit_strike( TT_Face face, + FT_Size_Request req, + FT_ULong* astrike_index ) + { + return FT_Match_Size( (FT_Face)face, req, 0, astrike_index ); + } + + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_strike_metrics( TT_Face face, + FT_ULong strike_index, + FT_Size_Metrics* metrics ) + { + TT_SBit_Strike strike; + + + if ( strike_index >= face->num_sbit_strikes ) + return SFNT_Err_Invalid_Argument; + + strike = face->sbit_strikes + strike_index; + + metrics->x_ppem = strike->x_ppem; + metrics->y_ppem = strike->y_ppem; + + metrics->ascender = strike->hori.ascender << 6; + metrics->descender = strike->hori.descender << 6; + + /* XXX: Is this correct? */ + metrics->max_advance = ( strike->hori.min_origin_SB + + strike->hori.max_width + + strike->hori.min_advance_SB ) << 6; + + metrics->height = metrics->ascender - metrics->descender; + + return SFNT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* find_sbit_range */ + /* */ + /* <Description> */ + /* Scans a given strike's ranges and return, for a given glyph */ + /* index, the corresponding sbit range, and `EBDT' offset. */ + /* */ + /* <Input> */ + /* glyph_index :: The glyph index. */ + /* */ + /* strike :: The source/current sbit strike. */ + /* */ + /* <Output> */ + /* arange :: The sbit range containing the glyph index. */ + /* */ + /* aglyph_offset :: The offset of the glyph data in `EBDT' table. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means the glyph index was found. */ + /* */ + static FT_Error + find_sbit_range( FT_UInt glyph_index, + TT_SBit_Strike strike, + TT_SBit_Range *arange, + FT_ULong *aglyph_offset ) + { + TT_SBit_RangeRec *range, *range_limit; + + + /* check whether the glyph index is within this strike's */ + /* glyph range */ + if ( glyph_index < (FT_UInt)strike->start_glyph || + glyph_index > (FT_UInt)strike->end_glyph ) + goto Fail; + + /* scan all ranges in strike */ + range = strike->sbit_ranges; + range_limit = range + strike->num_ranges; + if ( !range ) + goto Fail; + + for ( ; range < range_limit; range++ ) + { + if ( glyph_index >= (FT_UInt)range->first_glyph && + glyph_index <= (FT_UInt)range->last_glyph ) + { + FT_UShort delta = (FT_UShort)( glyph_index - range->first_glyph ); + + + switch ( range->index_format ) + { + case 1: + case 3: + *aglyph_offset = range->glyph_offsets[delta]; + break; + + case 2: + *aglyph_offset = range->image_offset + + range->image_size * delta; + break; + + case 4: + case 5: + { + FT_ULong n; + + + for ( n = 0; n < range->num_glyphs; n++ ) + { + if ( (FT_UInt)range->glyph_codes[n] == glyph_index ) + { + if ( range->index_format == 4 ) + *aglyph_offset = range->glyph_offsets[n]; + else + *aglyph_offset = range->image_offset + + n * range->image_size; + goto Found; + } + } + } + + /* fall-through */ + default: + goto Fail; + } + + Found: + /* return successfully! */ + *arange = range; + return SFNT_Err_Ok; + } + } + + Fail: + *arange = 0; + *aglyph_offset = 0; + + return SFNT_Err_Invalid_Argument; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_find_sbit_image */ + /* */ + /* <Description> */ + /* Checks whether an embedded bitmap (an `sbit') exists for a given */ + /* glyph, at a given strike. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* glyph_index :: The glyph index. */ + /* */ + /* strike_index :: The current strike index. */ + /* */ + /* <Output> */ + /* arange :: The SBit range containing the glyph index. */ + /* */ + /* astrike :: The SBit strike containing the glyph index. */ + /* */ + /* aglyph_offset :: The offset of the glyph data in `EBDT' table. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns */ + /* SFNT_Err_Invalid_Argument if no sbit exists for the requested */ + /* glyph. */ + /* */ + FT_LOCAL( FT_Error ) + tt_find_sbit_image( TT_Face face, + FT_UInt glyph_index, + FT_ULong strike_index, + TT_SBit_Range *arange, + TT_SBit_Strike *astrike, + FT_ULong *aglyph_offset ) + { + FT_Error error; + TT_SBit_Strike strike; + + + if ( !face->sbit_strikes || + ( face->num_sbit_strikes <= strike_index ) ) + goto Fail; + + strike = &face->sbit_strikes[strike_index]; + + error = find_sbit_range( glyph_index, strike, + arange, aglyph_offset ); + if ( error ) + goto Fail; + + *astrike = strike; + + return SFNT_Err_Ok; + + Fail: + /* no embedded bitmap for this glyph in face */ + *arange = 0; + *astrike = 0; + *aglyph_offset = 0; + + return SFNT_Err_Invalid_Argument; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_load_sbit_metrics */ + /* */ + /* <Description> */ + /* Gets the big metrics for a given SBit. */ + /* */ + /* <Input> */ + /* stream :: The input stream. */ + /* */ + /* range :: The SBit range containing the glyph. */ + /* */ + /* <Output> */ + /* big_metrics :: A big SBit metrics structure for the glyph. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + /* <Note> */ + /* The stream cursor must be positioned at the glyph's offset within */ + /* the `EBDT' table before the call. */ + /* */ + /* If the image format uses variable metrics, the stream cursor is */ + /* positioned just after the metrics header in the `EBDT' table on */ + /* function exit. */ + /* */ + FT_LOCAL( FT_Error ) + tt_load_sbit_metrics( FT_Stream stream, + TT_SBit_Range range, + TT_SBit_Metrics metrics ) + { + FT_Error error = SFNT_Err_Ok; + + + switch ( range->image_format ) + { + case 1: + case 2: + case 8: + /* variable small metrics */ + { + TT_SBit_SmallMetricsRec smetrics; + + static const FT_Frame_Field sbit_small_metrics_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE TT_SBit_SmallMetricsRec + + FT_FRAME_START( 5 ), + FT_FRAME_BYTE( height ), + FT_FRAME_BYTE( width ), + FT_FRAME_CHAR( bearingX ), + FT_FRAME_CHAR( bearingY ), + FT_FRAME_BYTE( advance ), + FT_FRAME_END + }; + + + /* read small metrics */ + if ( FT_STREAM_READ_FIELDS( sbit_small_metrics_fields, &smetrics ) ) + goto Exit; + + /* convert it to a big metrics */ + metrics->height = smetrics.height; + metrics->width = smetrics.width; + metrics->horiBearingX = smetrics.bearingX; + metrics->horiBearingY = smetrics.bearingY; + metrics->horiAdvance = smetrics.advance; + + /* these metrics are made up at a higher level when */ + /* needed. */ + metrics->vertBearingX = 0; + metrics->vertBearingY = 0; + metrics->vertAdvance = 0; + } + break; + + case 6: + case 7: + case 9: + /* variable big metrics */ + if ( FT_STREAM_READ_FIELDS( sbit_metrics_fields, metrics ) ) + goto Exit; + break; + + case 5: + default: /* constant metrics */ + if ( range->index_format == 2 || range->index_format == 5 ) + *metrics = range->metrics; + else + return SFNT_Err_Invalid_File_Format; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* crop_bitmap */ + /* */ + /* <Description> */ + /* Crops a bitmap to its tightest bounding box, and adjusts its */ + /* metrics. */ + /* */ + /* <InOut> */ + /* map :: The bitmap. */ + /* */ + /* metrics :: The corresponding metrics structure. */ + /* */ + static void + crop_bitmap( FT_Bitmap* map, + TT_SBit_Metrics metrics ) + { + /***********************************************************************/ + /* */ + /* In this situation, some bounding boxes of embedded bitmaps are too */ + /* large. We need to crop it to a reasonable size. */ + /* */ + /* --------- */ + /* | | ----- */ + /* | *** | |***| */ + /* | * | | * | */ + /* | * | ------> | * | */ + /* | * | | * | */ + /* | * | | * | */ + /* | *** | |***| */ + /* --------- ----- */ + /* */ + /***********************************************************************/ + + FT_Int rows, count; + FT_Long line_len; + FT_Byte* line; + + + /***********************************************************************/ + /* */ + /* first of all, check the top-most lines of the bitmap, and remove */ + /* them if they're empty. */ + /* */ + { + line = (FT_Byte*)map->buffer; + rows = map->rows; + line_len = map->pitch; + + + for ( count = 0; count < rows; count++ ) + { + FT_Byte* cur = line; + FT_Byte* limit = line + line_len; + + + for ( ; cur < limit; cur++ ) + if ( cur[0] ) + goto Found_Top; + + /* the current line was empty - skip to next one */ + line = limit; + } + + Found_Top: + /* check that we have at least one filled line */ + if ( count >= rows ) + goto Empty_Bitmap; + + /* now, crop the empty upper lines */ + if ( count > 0 ) + { + line = (FT_Byte*)map->buffer; + + FT_MEM_MOVE( line, line + count * line_len, + ( rows - count ) * line_len ); + + metrics->height = (FT_Byte)( metrics->height - count ); + metrics->horiBearingY = (FT_Char)( metrics->horiBearingY - count ); + metrics->vertBearingY = (FT_Char)( metrics->vertBearingY - count ); + + map->rows -= count; + rows -= count; + } + } + + /***********************************************************************/ + /* */ + /* second, crop the lower lines */ + /* */ + { + line = (FT_Byte*)map->buffer + ( rows - 1 ) * line_len; + + for ( count = 0; count < rows; count++ ) + { + FT_Byte* cur = line; + FT_Byte* limit = line + line_len; + + + for ( ; cur < limit; cur++ ) + if ( cur[0] ) + goto Found_Bottom; + + /* the current line was empty - skip to previous one */ + line -= line_len; + } + + Found_Bottom: + if ( count > 0 ) + { + metrics->height = (FT_Byte)( metrics->height - count ); + rows -= count; + map->rows -= count; + } + } + + /***********************************************************************/ + /* */ + /* third, get rid of the space on the left side of the glyph */ + /* */ + do + { + FT_Byte* limit; + + + line = (FT_Byte*)map->buffer; + limit = line + rows * line_len; + + for ( ; line < limit; line += line_len ) + if ( line[0] & 0x80 ) + goto Found_Left; + + /* shift the whole glyph one pixel to the left */ + line = (FT_Byte*)map->buffer; + limit = line + rows * line_len; + + for ( ; line < limit; line += line_len ) + { + FT_Int n, width = map->width; + FT_Byte old; + FT_Byte* cur = line; + + + old = (FT_Byte)(cur[0] << 1); + for ( n = 8; n < width; n += 8 ) + { + FT_Byte val; + + + val = cur[1]; + cur[0] = (FT_Byte)( old | ( val >> 7 ) ); + old = (FT_Byte)( val << 1 ); + cur++; + } + cur[0] = old; + } + + map->width--; + metrics->horiBearingX++; + metrics->vertBearingX++; + metrics->width--; + + } while ( map->width > 0 ); + + Found_Left: + + /***********************************************************************/ + /* */ + /* finally, crop the bitmap width to get rid of the space on the right */ + /* side of the glyph. */ + /* */ + do + { + FT_Int right = map->width - 1; + FT_Byte* limit; + FT_Byte mask; + + + line = (FT_Byte*)map->buffer + ( right >> 3 ); + limit = line + rows * line_len; + mask = (FT_Byte)( 0x80 >> ( right & 7 ) ); + + for ( ; line < limit; line += line_len ) + if ( line[0] & mask ) + goto Found_Right; + + /* crop the whole glyph to the right */ + map->width--; + metrics->width--; + + } while ( map->width > 0 ); + + Found_Right: + /* all right, the bitmap was cropped */ + return; + + Empty_Bitmap: + map->width = 0; + map->rows = 0; + map->pitch = 0; + map->pixel_mode = FT_PIXEL_MODE_MONO; + } + + + static FT_Error + Load_SBit_Single( FT_Bitmap* map, + FT_Int x_offset, + FT_Int y_offset, + FT_Int pix_bits, + FT_UShort image_format, + TT_SBit_Metrics metrics, + FT_Stream stream ) + { + FT_Error error; + + + /* check that the source bitmap fits into the target pixmap */ + if ( x_offset < 0 || x_offset + metrics->width > map->width || + y_offset < 0 || y_offset + metrics->height > map->rows ) + { + error = SFNT_Err_Invalid_Argument; + + goto Exit; + } + + { + FT_Int glyph_width = metrics->width; + FT_Int glyph_height = metrics->height; + FT_Int glyph_size; + FT_Int line_bits = pix_bits * glyph_width; + FT_Bool pad_bytes = 0; + + + /* compute size of glyph image */ + switch ( image_format ) + { + case 1: /* byte-padded formats */ + case 6: + { + FT_Int line_length; + + + switch ( pix_bits ) + { + case 1: + line_length = ( glyph_width + 7 ) >> 3; + break; + case 2: + line_length = ( glyph_width + 3 ) >> 2; + break; + case 4: + line_length = ( glyph_width + 1 ) >> 1; + break; + default: + line_length = glyph_width; + } + + glyph_size = glyph_height * line_length; + pad_bytes = 1; + } + break; + + case 2: + case 5: + case 7: + line_bits = glyph_width * pix_bits; + glyph_size = ( glyph_height * line_bits + 7 ) >> 3; + break; + + default: /* invalid format */ + return SFNT_Err_Invalid_File_Format; + } + + /* Now read data and draw glyph into target pixmap */ + if ( FT_FRAME_ENTER( glyph_size ) ) + goto Exit; + + /* don't forget to multiply `x_offset' by `map->pix_bits' as */ + /* the sbit blitter doesn't make a difference between pixmap */ + /* depths. */ + blit_sbit( map, (FT_Byte*)stream->cursor, line_bits, pad_bytes, + x_offset * pix_bits, y_offset, metrics->height ); + + FT_FRAME_EXIT(); + } + + Exit: + return error; + } + + + static FT_Error + Load_SBit_Image( TT_SBit_Strike strike, + TT_SBit_Range range, + FT_ULong ebdt_pos, + FT_ULong glyph_offset, + FT_GlyphSlot slot, + FT_Int x_offset, + FT_Int y_offset, + FT_Stream stream, + TT_SBit_Metrics metrics, + FT_Int depth ) + { + FT_Memory memory = stream->memory; + FT_Bitmap* map = &slot->bitmap; + FT_Error error; + + + /* place stream at beginning of glyph data and read metrics */ + if ( FT_STREAM_SEEK( ebdt_pos + glyph_offset ) ) + goto Exit; + + error = tt_load_sbit_metrics( stream, range, metrics ); + if ( error ) + goto Exit; + + /* This function is recursive. At the top-level call, we */ + /* compute the dimensions of the higher-level glyph to */ + /* allocate the final pixmap buffer. */ + if ( depth == 0 ) + { + FT_Long size; + + + map->width = metrics->width; + map->rows = metrics->height; + + switch ( strike->bit_depth ) + { + case 1: + map->pixel_mode = FT_PIXEL_MODE_MONO; + map->pitch = ( map->width + 7 ) >> 3; + break; + + case 2: + map->pixel_mode = FT_PIXEL_MODE_GRAY2; + map->pitch = ( map->width + 3 ) >> 2; + break; + + case 4: + map->pixel_mode = FT_PIXEL_MODE_GRAY4; + map->pitch = ( map->width + 1 ) >> 1; + break; + + case 8: + map->pixel_mode = FT_PIXEL_MODE_GRAY; + map->pitch = map->width; + break; + + default: + return SFNT_Err_Invalid_File_Format; + } + + size = map->rows * map->pitch; + + /* check that there is no empty image */ + if ( size == 0 ) + goto Exit; /* exit successfully! */ + + error = ft_glyphslot_alloc_bitmap( slot, size ); + if (error) + goto Exit; + } + + switch ( range->image_format ) + { + case 1: /* single sbit image - load it */ + case 2: + case 5: + case 6: + case 7: + return Load_SBit_Single( map, x_offset, y_offset, strike->bit_depth, + range->image_format, metrics, stream ); + + case 8: /* compound format */ + if ( FT_STREAM_SKIP( 1L ) ) + { + error = SFNT_Err_Invalid_Stream_Skip; + goto Exit; + } + /* fallthrough */ + + case 9: + break; + + default: /* invalid image format */ + return SFNT_Err_Invalid_File_Format; + } + + /* All right, we have a compound format. First of all, read */ + /* the array of elements. */ + { + TT_SBit_Component components = NULL; + TT_SBit_Component comp; + FT_UShort num_components, count; + + + if ( FT_READ_USHORT( num_components ) || + FT_NEW_ARRAY( components, num_components ) ) + goto Exit; + + count = num_components; + + if ( FT_FRAME_ENTER( 4L * num_components ) ) + goto Fail_Memory; + + for ( comp = components; count > 0; count--, comp++ ) + { + comp->glyph_code = FT_GET_USHORT(); + comp->x_offset = FT_GET_CHAR(); + comp->y_offset = FT_GET_CHAR(); + } + + FT_FRAME_EXIT(); + + /* Now recursively load each element glyph */ + count = num_components; + comp = components; + for ( ; count > 0; count--, comp++ ) + { + TT_SBit_Range elem_range; + TT_SBit_MetricsRec elem_metrics; + FT_ULong elem_offset; + + + /* find the range for this element */ + error = find_sbit_range( comp->glyph_code, + strike, + &elem_range, + &elem_offset ); + if ( error ) + goto Fail_Memory; + + /* now load the element, recursively */ + error = Load_SBit_Image( strike, + elem_range, + ebdt_pos, + elem_offset, + slot, + x_offset + comp->x_offset, + y_offset + comp->y_offset, + stream, + &elem_metrics, + depth + 1 ); + if ( error ) + goto Fail_Memory; + } + + Fail_Memory: + FT_FREE( components ); + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_face_load_sbit_image */ + /* */ + /* <Description> */ + /* Loads a given glyph sbit image from the font resource. This also */ + /* returns its metrics. */ + /* */ + /* <Input> */ + /* face :: The target face object. */ + /* */ + /* strike_index :: The current strike index. */ + /* */ + /* glyph_index :: The current glyph index. */ + /* */ + /* load_flags :: The glyph load flags (the code checks for the flag */ + /* FT_LOAD_CROP_BITMAP). */ + /* */ + /* stream :: The input stream. */ + /* */ + /* <Output> */ + /* map :: The target pixmap. */ + /* */ + /* metrics :: A big sbit metrics structure for the glyph image. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. Returns an error if no */ + /* glyph sbit exists for the index. */ + /* */ + /* <Note> */ + /* The `map.buffer' field is always freed before the glyph is loaded. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_sbit_image( TT_Face face, + FT_ULong strike_index, + FT_UInt glyph_index, + FT_UInt load_flags, + FT_Stream stream, + FT_Bitmap *map, + TT_SBit_MetricsRec *metrics ) + { + FT_Error error; + FT_ULong ebdt_pos, glyph_offset; + + TT_SBit_Strike strike; + TT_SBit_Range range; + + + /* Check whether there is a glyph sbit for the current index */ + error = tt_find_sbit_image( face, glyph_index, strike_index, + &range, &strike, &glyph_offset ); + if ( error ) + goto Exit; + + /* now, find the location of the `EBDT' table in */ + /* the font file */ + error = face->goto_table( face, TTAG_EBDT, stream, 0 ); + if ( error ) + error = face->goto_table( face, TTAG_bdat, stream, 0 ); + if ( error ) + goto Exit; + + ebdt_pos = FT_STREAM_POS(); + + error = Load_SBit_Image( strike, range, ebdt_pos, glyph_offset, + face->root.glyph, 0, 0, stream, metrics, 0 ); + if ( error ) + goto Exit; + + /* setup vertical metrics if needed */ + if ( strike->flags & 1 ) + { + /* in case of a horizontal strike only */ + FT_Int advance; + + + advance = strike->hori.ascender - strike->hori.descender; + + /* some heuristic values */ + + metrics->vertBearingX = (FT_Char)(-metrics->width / 2 ); + metrics->vertBearingY = (FT_Char)( ( advance - metrics->height ) / 2 ); + metrics->vertAdvance = (FT_Char)( advance * 12 / 10 ); + } + + /* Crop the bitmap now, unless specified otherwise */ + if ( load_flags & FT_LOAD_CROP_BITMAP ) + crop_bitmap( map, metrics ); + + Exit: + return error; + } + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + +/* END */ diff --git a/src/sfnt/ttsbit.h b/src/sfnt/ttsbit.h new file mode 100644 index 0000000..7ea2af1 --- /dev/null +++ b/src/sfnt/ttsbit.h @@ -0,0 +1,79 @@ +/***************************************************************************/ +/* */ +/* ttsbit.h */ +/* */ +/* TrueType and OpenType embedded bitmap support (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTSBIT_H__ +#define __TTSBIT_H__ + + +#include <ft2build.h> +#include "ttload.h" + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + tt_face_load_eblc( TT_Face face, + FT_Stream stream ); + + FT_LOCAL( void ) + tt_face_free_eblc( TT_Face face ); + + + FT_LOCAL( FT_Error ) + tt_face_set_sbit_strike( TT_Face face, + FT_Size_Request req, + FT_ULong* astrike_index ); + + FT_LOCAL( FT_Error ) + tt_face_load_strike_metrics( TT_Face face, + FT_ULong strike_index, + FT_Size_Metrics* metrics ); + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + FT_LOCAL( FT_Error ) + tt_find_sbit_image( TT_Face face, + FT_UInt glyph_index, + FT_ULong strike_index, + TT_SBit_Range *arange, + TT_SBit_Strike *astrike, + FT_ULong *aglyph_offset ); + + FT_LOCAL( FT_Error ) + tt_load_sbit_metrics( FT_Stream stream, + TT_SBit_Range range, + TT_SBit_Metrics metrics ); + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + FT_LOCAL( FT_Error ) + tt_face_load_sbit_image( TT_Face face, + FT_ULong strike_index, + FT_UInt glyph_index, + FT_UInt load_flags, + FT_Stream stream, + FT_Bitmap *map, + TT_SBit_MetricsRec *metrics ); + + +FT_END_HEADER + +#endif /* __TTSBIT_H__ */ + + +/* END */ diff --git a/src/sfnt/ttsbit0.c b/src/sfnt/ttsbit0.c new file mode 100644 index 0000000..38bcf21 --- /dev/null +++ b/src/sfnt/ttsbit0.c @@ -0,0 +1,1011 @@ +/***************************************************************************/ +/* */ +/* ttsbit0.c */ +/* */ +/* TrueType and OpenType embedded bitmap support (body). */ +/* This is a heap-optimized version. */ +/* */ +/* Copyright 2005, 2006, 2007, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +/* This file is included by ttsbit.c */ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include "ttsbit.h" + +#include "sferrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttsbit + + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_eblc( TT_Face face, + FT_Stream stream ) + { + FT_Error error = SFNT_Err_Ok; + FT_Fixed version; + FT_ULong num_strikes, table_size; + FT_Byte* p; + FT_Byte* p_limit; + FT_UInt count; + + + face->sbit_num_strikes = 0; + + /* this table is optional */ + error = face->goto_table( face, TTAG_EBLC, stream, &table_size ); + if ( error ) + error = face->goto_table( face, TTAG_bloc, stream, &table_size ); + if ( error ) + goto Exit; + + if ( table_size < 8 ) + { + FT_ERROR(( "tt_face_load_sbit_strikes: table too short\n" )); + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + if ( FT_FRAME_EXTRACT( table_size, face->sbit_table ) ) + goto Exit; + + face->sbit_table_size = table_size; + + p = face->sbit_table; + p_limit = p + table_size; + + version = FT_NEXT_ULONG( p ); + num_strikes = FT_NEXT_ULONG( p ); + + if ( version != 0x00020000UL || num_strikes >= 0x10000UL ) + { + FT_ERROR(( "tt_face_load_sbit_strikes: invalid table version\n" )); + error = SFNT_Err_Invalid_File_Format; + goto Fail; + } + + /* + * Count the number of strikes available in the table. We are a bit + * paranoid there and don't trust the data. + */ + count = (FT_UInt)num_strikes; + if ( 8 + 48UL * count > table_size ) + count = (FT_UInt)( ( p_limit - p ) / 48 ); + + face->sbit_num_strikes = count; + + FT_TRACE3(( "sbit_num_strikes: %u\n", count )); + Exit: + return error; + + Fail: + FT_FRAME_RELEASE( face->sbit_table ); + face->sbit_table_size = 0; + goto Exit; + } + + + FT_LOCAL_DEF( void ) + tt_face_free_eblc( TT_Face face ) + { + FT_Stream stream = face->root.stream; + + + FT_FRAME_RELEASE( face->sbit_table ); + face->sbit_table_size = 0; + face->sbit_num_strikes = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + tt_face_set_sbit_strike( TT_Face face, + FT_Size_Request req, + FT_ULong* astrike_index ) + { + return FT_Match_Size( (FT_Face)face, req, 0, astrike_index ); + } + + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_strike_metrics( TT_Face face, + FT_ULong strike_index, + FT_Size_Metrics* metrics ) + { + FT_Byte* strike; + + + if ( strike_index >= (FT_ULong)face->sbit_num_strikes ) + return SFNT_Err_Invalid_Argument; + + strike = face->sbit_table + 8 + strike_index * 48; + + metrics->x_ppem = (FT_UShort)strike[44]; + metrics->y_ppem = (FT_UShort)strike[45]; + + metrics->ascender = (FT_Char)strike[16] << 6; /* hori.ascender */ + metrics->descender = (FT_Char)strike[17] << 6; /* hori.descender */ + metrics->height = metrics->ascender - metrics->descender; + + /* XXX: Is this correct? */ + metrics->max_advance = ( (FT_Char)strike[22] + /* min_origin_SB */ + strike[18] + /* max_width */ + (FT_Char)strike[23] /* min_advance_SB */ + ) << 6; + + return SFNT_Err_Ok; + } + + + typedef struct TT_SBitDecoderRec_ + { + TT_Face face; + FT_Stream stream; + FT_Bitmap* bitmap; + TT_SBit_Metrics metrics; + FT_Bool metrics_loaded; + FT_Bool bitmap_allocated; + FT_Byte bit_depth; + + FT_ULong ebdt_start; + FT_ULong ebdt_size; + + FT_ULong strike_index_array; + FT_ULong strike_index_count; + FT_Byte* eblc_base; + FT_Byte* eblc_limit; + + } TT_SBitDecoderRec, *TT_SBitDecoder; + + + static FT_Error + tt_sbit_decoder_init( TT_SBitDecoder decoder, + TT_Face face, + FT_ULong strike_index, + TT_SBit_MetricsRec* metrics ) + { + FT_Error error; + FT_Stream stream = face->root.stream; + FT_ULong ebdt_size; + + + error = face->goto_table( face, TTAG_EBDT, stream, &ebdt_size ); + if ( error ) + error = face->goto_table( face, TTAG_bdat, stream, &ebdt_size ); + if ( error ) + goto Exit; + + decoder->face = face; + decoder->stream = stream; + decoder->bitmap = &face->root.glyph->bitmap; + decoder->metrics = metrics; + + decoder->metrics_loaded = 0; + decoder->bitmap_allocated = 0; + + decoder->ebdt_start = FT_STREAM_POS(); + decoder->ebdt_size = ebdt_size; + + decoder->eblc_base = face->sbit_table; + decoder->eblc_limit = face->sbit_table + face->sbit_table_size; + + /* now find the strike corresponding to the index */ + { + FT_Byte* p; + + + if ( 8 + 48 * strike_index + 3 * 4 + 34 + 1 > face->sbit_table_size ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + p = decoder->eblc_base + 8 + 48 * strike_index; + + decoder->strike_index_array = FT_NEXT_ULONG( p ); + p += 4; + decoder->strike_index_count = FT_NEXT_ULONG( p ); + p += 34; + decoder->bit_depth = *p; + + if ( decoder->strike_index_array > face->sbit_table_size || + decoder->strike_index_array + 8 * decoder->strike_index_count > + face->sbit_table_size ) + error = SFNT_Err_Invalid_File_Format; + } + + Exit: + return error; + } + + + static void + tt_sbit_decoder_done( TT_SBitDecoder decoder ) + { + FT_UNUSED( decoder ); + } + + + static FT_Error + tt_sbit_decoder_alloc_bitmap( TT_SBitDecoder decoder ) + { + FT_Error error = SFNT_Err_Ok; + FT_UInt width, height; + FT_Bitmap* map = decoder->bitmap; + FT_Long size; + + + if ( !decoder->metrics_loaded ) + { + error = SFNT_Err_Invalid_Argument; + goto Exit; + } + + width = decoder->metrics->width; + height = decoder->metrics->height; + + map->width = (int)width; + map->rows = (int)height; + + switch ( decoder->bit_depth ) + { + case 1: + map->pixel_mode = FT_PIXEL_MODE_MONO; + map->pitch = ( map->width + 7 ) >> 3; + break; + + case 2: + map->pixel_mode = FT_PIXEL_MODE_GRAY2; + map->pitch = ( map->width + 3 ) >> 2; + break; + + case 4: + map->pixel_mode = FT_PIXEL_MODE_GRAY4; + map->pitch = ( map->width + 1 ) >> 1; + break; + + case 8: + map->pixel_mode = FT_PIXEL_MODE_GRAY; + map->pitch = map->width; + break; + + default: + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + size = map->rows * map->pitch; + + /* check that there is no empty image */ + if ( size == 0 ) + goto Exit; /* exit successfully! */ + + error = ft_glyphslot_alloc_bitmap( decoder->face->root.glyph, size ); + if ( error ) + goto Exit; + + decoder->bitmap_allocated = 1; + + Exit: + return error; + } + + + static FT_Error + tt_sbit_decoder_load_metrics( TT_SBitDecoder decoder, + FT_Byte* *pp, + FT_Byte* limit, + FT_Bool big ) + { + FT_Byte* p = *pp; + TT_SBit_Metrics metrics = decoder->metrics; + + + if ( p + 5 > limit ) + goto Fail; + + metrics->height = p[0]; + metrics->width = p[1]; + metrics->horiBearingX = (FT_Char)p[2]; + metrics->horiBearingY = (FT_Char)p[3]; + metrics->horiAdvance = p[4]; + + p += 5; + if ( big ) + { + if ( p + 3 > limit ) + goto Fail; + + metrics->vertBearingX = (FT_Char)p[0]; + metrics->vertBearingY = (FT_Char)p[1]; + metrics->vertAdvance = p[2]; + + p += 3; + } + + decoder->metrics_loaded = 1; + *pp = p; + return SFNT_Err_Ok; + + Fail: + return SFNT_Err_Invalid_Argument; + } + + + /* forward declaration */ + static FT_Error + tt_sbit_decoder_load_image( TT_SBitDecoder decoder, + FT_UInt glyph_index, + FT_Int x_pos, + FT_Int y_pos ); + + typedef FT_Error (*TT_SBitDecoder_LoadFunc)( TT_SBitDecoder decoder, + FT_Byte* p, + FT_Byte* plimit, + FT_Int x_pos, + FT_Int y_pos ); + + + static FT_Error + tt_sbit_decoder_load_byte_aligned( TT_SBitDecoder decoder, + FT_Byte* p, + FT_Byte* limit, + FT_Int x_pos, + FT_Int y_pos ) + { + FT_Error error = SFNT_Err_Ok; + FT_Byte* line; + FT_Int bit_height, bit_width, pitch, width, height, h; + FT_Bitmap* bitmap; + + + if ( !decoder->bitmap_allocated ) + { + error = tt_sbit_decoder_alloc_bitmap( decoder ); + if ( error ) + goto Exit; + } + + /* check that we can write the glyph into the bitmap */ + bitmap = decoder->bitmap; + bit_width = bitmap->width; + bit_height = bitmap->rows; + pitch = bitmap->pitch; + line = bitmap->buffer; + + width = decoder->metrics->width; + height = decoder->metrics->height; + + if ( x_pos < 0 || x_pos + width > bit_width || + y_pos < 0 || y_pos + height > bit_height ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + if ( p + ( ( width + 7 ) >> 3 ) * height > limit ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + /* now do the blit */ + line += y_pos * pitch + ( x_pos >> 3 ); + x_pos &= 7; + + if ( x_pos == 0 ) /* the easy one */ + { + for ( h = height; h > 0; h--, line += pitch ) + { + FT_Byte* write = line; + FT_Int w; + + + for ( w = width; w >= 8; w -= 8 ) + { + write[0] = (FT_Byte)( write[0] | *p++ ); + write += 1; + } + + if ( w > 0 ) + write[0] = (FT_Byte)( write[0] | ( *p++ & ( 0xFF00U >> w ) ) ); + } + } + else /* x_pos > 0 */ + { + for ( h = height; h > 0; h--, line += pitch ) + { + FT_Byte* write = line; + FT_Int w; + FT_UInt wval = 0; + + + for ( w = width; w >= 8; w -= 8 ) + { + wval = (FT_UInt)( wval | *p++ ); + write[0] = (FT_Byte)( write[0] | ( wval >> x_pos ) ); + write += 1; + wval <<= 8; + } + + if ( w > 0 ) + wval = (FT_UInt)( wval | ( *p++ & ( 0xFF00U >> w ) ) ); + + /* all bits read and there are `x_pos + w' bits to be written */ + + write[0] = (FT_Byte)( write[0] | ( wval >> x_pos ) ); + + if ( x_pos + w > 8 ) + { + write++; + wval <<= 8; + write[0] = (FT_Byte)( write[0] | ( wval >> x_pos ) ); + } + } + } + + Exit: + return error; + } + + + /* + * Load a bit-aligned bitmap (with pointer `p') into a line-aligned bitmap + * (with pointer `write'). In the example below, the width is 3 pixel, + * and `x_pos' is 1 pixel. + * + * p p+1 + * | | | + * | 7 6 5 4 3 2 1 0 | 7 6 5 4 3 2 1 0 |... + * | | | + * +-------+ +-------+ +-------+ ... + * . . . + * . . . + * v . . + * +-------+ . . + * | | . + * | 7 6 5 4 3 2 1 0 | . + * | | . + * write . . + * . . + * v . + * +-------+ . + * | | + * | 7 6 5 4 3 2 1 0 | + * | | + * write+1 . + * . + * v + * +-------+ + * | | + * | 7 6 5 4 3 2 1 0 | + * | | + * write+2 + * + */ + + static FT_Error + tt_sbit_decoder_load_bit_aligned( TT_SBitDecoder decoder, + FT_Byte* p, + FT_Byte* limit, + FT_Int x_pos, + FT_Int y_pos ) + { + FT_Error error = SFNT_Err_Ok; + FT_Byte* line; + FT_Int bit_height, bit_width, pitch, width, height, h, nbits; + FT_Bitmap* bitmap; + FT_UShort rval; + + + if ( !decoder->bitmap_allocated ) + { + error = tt_sbit_decoder_alloc_bitmap( decoder ); + if ( error ) + goto Exit; + } + + /* check that we can write the glyph into the bitmap */ + bitmap = decoder->bitmap; + bit_width = bitmap->width; + bit_height = bitmap->rows; + pitch = bitmap->pitch; + line = bitmap->buffer; + + width = decoder->metrics->width; + height = decoder->metrics->height; + + if ( x_pos < 0 || x_pos + width > bit_width || + y_pos < 0 || y_pos + height > bit_height ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + if ( p + ( ( width * height + 7 ) >> 3 ) > limit ) + { + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + /* now do the blit */ + + /* adjust `line' to point to the first byte of the bitmap */ + line += y_pos * pitch + ( x_pos >> 3 ); + x_pos &= 7; + + /* the higher byte of `rval' is used as a buffer */ + rval = 0; + nbits = 0; + + for ( h = height; h > 0; h--, line += pitch ) + { + FT_Byte* write = line; + FT_Int w = width; + + + /* handle initial byte (in target bitmap) specially if necessary */ + if ( x_pos ) + { + w = ( width < 8 - x_pos ) ? width : 8 - x_pos; + + if ( h == height ) + { + rval = *p++; + nbits = x_pos; + } + else if ( nbits < w ) + { + if ( p < limit ) + rval |= *p++; + nbits += 8 - w; + } + else + { + rval >>= 8; + nbits -= w; + } + + *write++ |= ( ( rval >> nbits ) & 0xFF ) & + ( ~( 0xFF << w ) << ( 8 - w - x_pos ) ); + rval <<= 8; + + w = width - w; + } + + /* handle medial bytes */ + for ( ; w >= 8; w -= 8 ) + { + rval |= *p++; + *write++ |= ( rval >> nbits ) & 0xFF; + + rval <<= 8; + } + + /* handle final byte if necessary */ + if ( w > 0 ) + { + if ( nbits < w ) + { + if ( p < limit ) + rval |= *p++; + *write |= ( ( rval >> nbits ) & 0xFF ) & ( 0xFF00U >> w ); + nbits += 8 - w; + + rval <<= 8; + } + else + { + *write |= ( ( rval >> nbits ) & 0xFF ) & ( 0xFF00U >> w ); + nbits -= w; + } + } + } + + Exit: + return error; + } + + + static FT_Error + tt_sbit_decoder_load_compound( TT_SBitDecoder decoder, + FT_Byte* p, + FT_Byte* limit, + FT_Int x_pos, + FT_Int y_pos ) + { + FT_Error error = SFNT_Err_Ok; + FT_UInt num_components, nn; + + FT_Char horiBearingX = decoder->metrics->horiBearingX; + FT_Char horiBearingY = decoder->metrics->horiBearingY; + FT_Byte horiAdvance = decoder->metrics->horiAdvance; + FT_Char vertBearingX = decoder->metrics->vertBearingX; + FT_Char vertBearingY = decoder->metrics->vertBearingY; + FT_Byte vertAdvance = decoder->metrics->vertAdvance; + + + if ( p + 2 > limit ) + goto Fail; + + num_components = FT_NEXT_USHORT( p ); + if ( p + 4 * num_components > limit ) + goto Fail; + + if ( !decoder->bitmap_allocated ) + { + error = tt_sbit_decoder_alloc_bitmap( decoder ); + if ( error ) + goto Exit; + } + + for ( nn = 0; nn < num_components; nn++ ) + { + FT_UInt gindex = FT_NEXT_USHORT( p ); + FT_Byte dx = FT_NEXT_BYTE( p ); + FT_Byte dy = FT_NEXT_BYTE( p ); + + + /* NB: a recursive call */ + error = tt_sbit_decoder_load_image( decoder, gindex, + x_pos + dx, y_pos + dy ); + if ( error ) + break; + } + + decoder->metrics->horiBearingX = horiBearingX; + decoder->metrics->horiBearingY = horiBearingY; + decoder->metrics->horiAdvance = horiAdvance; + decoder->metrics->vertBearingX = vertBearingX; + decoder->metrics->vertBearingY = vertBearingY; + decoder->metrics->vertAdvance = vertAdvance; + decoder->metrics->width = (FT_UInt)decoder->bitmap->width; + decoder->metrics->height = (FT_UInt)decoder->bitmap->rows; + + Exit: + return error; + + Fail: + error = SFNT_Err_Invalid_File_Format; + goto Exit; + } + + + static FT_Error + tt_sbit_decoder_load_bitmap( TT_SBitDecoder decoder, + FT_UInt glyph_format, + FT_ULong glyph_start, + FT_ULong glyph_size, + FT_Int x_pos, + FT_Int y_pos ) + { + FT_Error error; + FT_Stream stream = decoder->stream; + FT_Byte* p; + FT_Byte* p_limit; + FT_Byte* data; + + + /* seek into the EBDT table now */ + if ( glyph_start + glyph_size > decoder->ebdt_size ) + { + error = SFNT_Err_Invalid_Argument; + goto Exit; + } + + if ( FT_STREAM_SEEK( decoder->ebdt_start + glyph_start ) || + FT_FRAME_EXTRACT( glyph_size, data ) ) + goto Exit; + + p = data; + p_limit = p + glyph_size; + + /* read the data, depending on the glyph format */ + switch ( glyph_format ) + { + case 1: + case 2: + case 8: + error = tt_sbit_decoder_load_metrics( decoder, &p, p_limit, 0 ); + break; + + case 6: + case 7: + case 9: + error = tt_sbit_decoder_load_metrics( decoder, &p, p_limit, 1 ); + break; + + default: + error = SFNT_Err_Ok; + } + + if ( error ) + goto Fail; + + { + TT_SBitDecoder_LoadFunc loader; + + + switch ( glyph_format ) + { + case 1: + case 6: + loader = tt_sbit_decoder_load_byte_aligned; + break; + + case 2: + case 5: + case 7: + loader = tt_sbit_decoder_load_bit_aligned; + break; + + case 8: + if ( p + 1 > p_limit ) + goto Fail; + + p += 1; /* skip padding */ + /* fall-through */ + + case 9: + loader = tt_sbit_decoder_load_compound; + break; + + default: + goto Fail; + } + + error = loader( decoder, p, p_limit, x_pos, y_pos ); + } + + Fail: + FT_FRAME_RELEASE( data ); + + Exit: + return error; + } + + + static FT_Error + tt_sbit_decoder_load_image( TT_SBitDecoder decoder, + FT_UInt glyph_index, + FT_Int x_pos, + FT_Int y_pos ) + { + /* + * First, we find the correct strike range that applies to this + * glyph index. + */ + + FT_Byte* p = decoder->eblc_base + decoder->strike_index_array; + FT_Byte* p_limit = decoder->eblc_limit; + FT_ULong num_ranges = decoder->strike_index_count; + FT_UInt start, end, index_format, image_format; + FT_ULong image_start = 0, image_end = 0, image_offset; + + + for ( ; num_ranges > 0; num_ranges-- ) + { + start = FT_NEXT_USHORT( p ); + end = FT_NEXT_USHORT( p ); + + if ( glyph_index >= start && glyph_index <= end ) + goto FoundRange; + + p += 4; /* ignore index offset */ + } + goto NoBitmap; + + FoundRange: + image_offset = FT_NEXT_ULONG( p ); + + /* overflow check */ + if ( decoder->eblc_base + decoder->strike_index_array + image_offset < + decoder->eblc_base ) + goto Failure; + + p = decoder->eblc_base + decoder->strike_index_array + image_offset; + if ( p + 8 > p_limit ) + goto NoBitmap; + + /* now find the glyph's location and extend within the ebdt table */ + index_format = FT_NEXT_USHORT( p ); + image_format = FT_NEXT_USHORT( p ); + image_offset = FT_NEXT_ULONG ( p ); + + switch ( index_format ) + { + case 1: /* 4-byte offsets relative to `image_offset' */ + { + p += 4 * ( glyph_index - start ); + if ( p + 8 > p_limit ) + goto NoBitmap; + + image_start = FT_NEXT_ULONG( p ); + image_end = FT_NEXT_ULONG( p ); + + if ( image_start == image_end ) /* missing glyph */ + goto NoBitmap; + } + break; + + case 2: /* big metrics, constant image size */ + { + FT_ULong image_size; + + + if ( p + 12 > p_limit ) + goto NoBitmap; + + image_size = FT_NEXT_ULONG( p ); + + if ( tt_sbit_decoder_load_metrics( decoder, &p, p_limit, 1 ) ) + goto NoBitmap; + + image_start = image_size * ( glyph_index - start ); + image_end = image_start + image_size; + } + break; + + case 3: /* 2-byte offsets relative to 'image_offset' */ + { + p += 2 * ( glyph_index - start ); + if ( p + 4 > p_limit ) + goto NoBitmap; + + image_start = FT_NEXT_USHORT( p ); + image_end = FT_NEXT_USHORT( p ); + + if ( image_start == image_end ) /* missing glyph */ + goto NoBitmap; + } + break; + + case 4: /* sparse glyph array with (glyph,offset) pairs */ + { + FT_ULong mm, num_glyphs; + + + if ( p + 4 > p_limit ) + goto NoBitmap; + + num_glyphs = FT_NEXT_ULONG( p ); + + /* overflow check */ + if ( p + ( num_glyphs + 1 ) * 4 < p ) + goto Failure; + + if ( p + ( num_glyphs + 1 ) * 4 > p_limit ) + goto NoBitmap; + + for ( mm = 0; mm < num_glyphs; mm++ ) + { + FT_UInt gindex = FT_NEXT_USHORT( p ); + + + if ( gindex == glyph_index ) + { + image_start = FT_NEXT_USHORT( p ); + p += 2; + image_end = FT_PEEK_USHORT( p ); + break; + } + p += 2; + } + + if ( mm >= num_glyphs ) + goto NoBitmap; + } + break; + + case 5: /* constant metrics with sparse glyph codes */ + { + FT_ULong image_size, mm, num_glyphs; + + + if ( p + 16 > p_limit ) + goto NoBitmap; + + image_size = FT_NEXT_ULONG( p ); + + if ( tt_sbit_decoder_load_metrics( decoder, &p, p_limit, 1 ) ) + goto NoBitmap; + + num_glyphs = FT_NEXT_ULONG( p ); + + /* overflow check */ + if ( p + 2 * num_glyphs < p ) + goto Failure; + + if ( p + 2 * num_glyphs > p_limit ) + goto NoBitmap; + + for ( mm = 0; mm < num_glyphs; mm++ ) + { + FT_UInt gindex = FT_NEXT_USHORT( p ); + + + if ( gindex == glyph_index ) + break; + } + + if ( mm >= num_glyphs ) + goto NoBitmap; + + image_start = image_size * mm; + image_end = image_start + image_size; + } + break; + + default: + goto NoBitmap; + } + + if ( image_start > image_end ) + goto NoBitmap; + + image_end -= image_start; + image_start = image_offset + image_start; + + return tt_sbit_decoder_load_bitmap( decoder, + image_format, + image_start, + image_end, + x_pos, + y_pos ); + + Failure: + return SFNT_Err_Invalid_Table; + + NoBitmap: + return SFNT_Err_Invalid_Argument; + } + + + FT_LOCAL( FT_Error ) + tt_face_load_sbit_image( TT_Face face, + FT_ULong strike_index, + FT_UInt glyph_index, + FT_UInt load_flags, + FT_Stream stream, + FT_Bitmap *map, + TT_SBit_MetricsRec *metrics ) + { + TT_SBitDecoderRec decoder[1]; + FT_Error error; + + FT_UNUSED( load_flags ); + FT_UNUSED( stream ); + FT_UNUSED( map ); + + + error = tt_sbit_decoder_init( decoder, face, strike_index, metrics ); + if ( !error ) + { + error = tt_sbit_decoder_load_image( decoder, glyph_index, 0, 0 ); + tt_sbit_decoder_done( decoder ); + } + + return error; + } + +/* EOF */ diff --git a/src/smooth/Jamfile b/src/smooth/Jamfile new file mode 100644 index 0000000..a8496aa --- /dev/null +++ b/src/smooth/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/smooth Jamfile +# +# Copyright 2001 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) smooth ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = ftgrays ftsmooth ftspic ; + } + else + { + _sources = smooth ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/smooth Jamfile diff --git a/src/smooth/ftgrays.c b/src/smooth/ftgrays.c new file mode 100644 index 0000000..4c0eea5 --- /dev/null +++ b/src/smooth/ftgrays.c @@ -0,0 +1,2066 @@ +/***************************************************************************/ +/* */ +/* ftgrays.c */ +/* */ +/* A new `perfect' anti-aliasing renderer (body). */ +/* */ +/* Copyright 2000-2003, 2005-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* This file can be compiled without the rest of the FreeType engine, by */ + /* defining the _STANDALONE_ macro when compiling it. You also need to */ + /* put the files `ftgrays.h' and `ftimage.h' into the current */ + /* compilation directory. Typically, you could do something like */ + /* */ + /* - copy `src/smooth/ftgrays.c' (this file) to your current directory */ + /* */ + /* - copy `include/freetype/ftimage.h' and `src/smooth/ftgrays.h' to the */ + /* same directory */ + /* */ + /* - compile `ftgrays' with the _STANDALONE_ macro defined, as in */ + /* */ + /* cc -c -D_STANDALONE_ ftgrays.c */ + /* */ + /* The renderer can be initialized with a call to */ + /* `ft_gray_raster.raster_new'; an anti-aliased bitmap can be generated */ + /* with a call to `ft_gray_raster.raster_render'. */ + /* */ + /* See the comments and documentation in the file `ftimage.h' for more */ + /* details on how the raster works. */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* This is a new anti-aliasing scan-converter for FreeType 2. The */ + /* algorithm used here is _very_ different from the one in the standard */ + /* `ftraster' module. Actually, `ftgrays' computes the _exact_ */ + /* coverage of the outline on each pixel cell. */ + /* */ + /* It is based on ideas that I initially found in Raph Levien's */ + /* excellent LibArt graphics library (see http://www.levien.com/libart */ + /* for more information, though the web pages do not tell anything */ + /* about the renderer; you'll have to dive into the source code to */ + /* understand how it works). */ + /* */ + /* Note, however, that this is a _very_ different implementation */ + /* compared to Raph's. Coverage information is stored in a very */ + /* different way, and I don't use sorted vector paths. Also, it doesn't */ + /* use floating point values. */ + /* */ + /* This renderer has the following advantages: */ + /* */ + /* - It doesn't need an intermediate bitmap. Instead, one can supply a */ + /* callback function that will be called by the renderer to draw gray */ + /* spans on any target surface. You can thus do direct composition on */ + /* any kind of bitmap, provided that you give the renderer the right */ + /* callback. */ + /* */ + /* - A perfect anti-aliaser, i.e., it computes the _exact_ coverage on */ + /* each pixel cell. */ + /* */ + /* - It performs a single pass on the outline (the `standard' FT2 */ + /* renderer makes two passes). */ + /* */ + /* - It can easily be modified to render to _any_ number of gray levels */ + /* cheaply. */ + /* */ + /* - For small (< 20) pixel sizes, it is faster than the standard */ + /* renderer. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_smooth + + +#ifdef _STANDALONE_ + + + /* define this to dump debugging information */ +/* #define FT_DEBUG_LEVEL_TRACE */ + + +#ifdef FT_DEBUG_LEVEL_TRACE +#include <stdio.h> +#include <stdarg.h> +#endif + +#include <stddef.h> +#include <string.h> +#include <setjmp.h> +#include <limits.h> +#define FT_UINT_MAX UINT_MAX +#define FT_INT_MAX INT_MAX + +#define ft_memset memset + +#define ft_setjmp setjmp +#define ft_longjmp longjmp +#define ft_jmp_buf jmp_buf + +typedef ptrdiff_t FT_PtrDist; + + +#define ErrRaster_Invalid_Mode -2 +#define ErrRaster_Invalid_Outline -1 +#define ErrRaster_Invalid_Argument -3 +#define ErrRaster_Memory_Overflow -4 + +#define FT_BEGIN_HEADER +#define FT_END_HEADER + +#include "ftimage.h" +#include "ftgrays.h" + + + /* This macro is used to indicate that a function parameter is unused. */ + /* Its purpose is simply to reduce compiler warnings. Note also that */ + /* simply defining it as `(void)x' doesn't avoid warnings with certain */ + /* ANSI compilers (e.g. LCC). */ +#define FT_UNUSED( x ) (x) = (x) + + + /* we only use level 5 & 7 tracing messages; cf. ftdebug.h */ + +#ifdef FT_DEBUG_LEVEL_TRACE + + void + FT_Message( const char* fmt, + ... ) + { + va_list ap; + + + va_start( ap, fmt ); + vfprintf( stderr, fmt, ap ); + va_end( ap ); + } + + /* we don't handle tracing levels in stand-alone mode; */ +#ifndef FT_TRACE5 +#define FT_TRACE5( varformat ) FT_Message varformat +#endif +#ifndef FT_TRACE7 +#define FT_TRACE7( varformat ) FT_Message varformat +#endif +#ifndef FT_ERROR +#define FT_ERROR( varformat ) FT_Message varformat +#endif + +#else /* !FT_DEBUG_LEVEL_TRACE */ + +#define FT_TRACE5( x ) do { } while ( 0 ) /* nothing */ +#define FT_TRACE7( x ) do { } while ( 0 ) /* nothing */ +#define FT_ERROR( x ) do { } while ( 0 ) /* nothing */ + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + + +#define FT_DEFINE_OUTLINE_FUNCS( class_, \ + move_to_, line_to_, \ + conic_to_, cubic_to_, \ + shift_, delta_ ) \ + static const FT_Outline_Funcs class_ = \ + { \ + move_to_, \ + line_to_, \ + conic_to_, \ + cubic_to_, \ + shift_, \ + delta_ \ + }; + +#define FT_DEFINE_RASTER_FUNCS( class_, glyph_format_, \ + raster_new_, raster_reset_, \ + raster_set_mode_, raster_render_, \ + raster_done_ ) \ + const FT_Raster_Funcs class_ = \ + { \ + glyph_format_, \ + raster_new_, \ + raster_reset_, \ + raster_set_mode_, \ + raster_render_, \ + raster_done_ \ + }; + +#else /* !_STANDALONE_ */ + + +#include <ft2build.h> +#include "ftgrays.h" +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_OUTLINE_H + +#include "ftsmerrs.h" + +#include "ftspic.h" + +#define ErrRaster_Invalid_Mode Smooth_Err_Cannot_Render_Glyph +#define ErrRaster_Invalid_Outline Smooth_Err_Invalid_Outline +#define ErrRaster_Memory_Overflow Smooth_Err_Out_Of_Memory +#define ErrRaster_Invalid_Argument Smooth_Err_Invalid_Argument + +#endif /* !_STANDALONE_ */ + +#ifndef FT_MEM_SET +#define FT_MEM_SET( d, s, c ) ft_memset( d, s, c ) +#endif + +#ifndef FT_MEM_ZERO +#define FT_MEM_ZERO( dest, count ) FT_MEM_SET( dest, 0, count ) +#endif + + /* as usual, for the speed hungry :-) */ + +#undef RAS_ARG +#undef RAS_ARG_ +#undef RAS_VAR +#undef RAS_VAR_ + +#ifndef FT_STATIC_RASTER + +#define RAS_ARG gray_PWorker worker +#define RAS_ARG_ gray_PWorker worker, + +#define RAS_VAR worker +#define RAS_VAR_ worker, + +#else /* FT_STATIC_RASTER */ + +#define RAS_ARG /* empty */ +#define RAS_ARG_ /* empty */ +#define RAS_VAR /* empty */ +#define RAS_VAR_ /* empty */ + +#endif /* FT_STATIC_RASTER */ + + + /* must be at least 6 bits! */ +#define PIXEL_BITS 8 + +#undef FLOOR +#undef CEILING +#undef TRUNC +#undef SCALED + +#define ONE_PIXEL ( 1L << PIXEL_BITS ) +#define PIXEL_MASK ( -1L << PIXEL_BITS ) +#define TRUNC( x ) ( (TCoord)( (x) >> PIXEL_BITS ) ) +#define SUBPIXELS( x ) ( (TPos)(x) << PIXEL_BITS ) +#define FLOOR( x ) ( (x) & -ONE_PIXEL ) +#define CEILING( x ) ( ( (x) + ONE_PIXEL - 1 ) & -ONE_PIXEL ) +#define ROUND( x ) ( ( (x) + ONE_PIXEL / 2 ) & -ONE_PIXEL ) + +#if PIXEL_BITS >= 6 +#define UPSCALE( x ) ( (x) << ( PIXEL_BITS - 6 ) ) +#define DOWNSCALE( x ) ( (x) >> ( PIXEL_BITS - 6 ) ) +#else +#define UPSCALE( x ) ( (x) >> ( 6 - PIXEL_BITS ) ) +#define DOWNSCALE( x ) ( (x) << ( 6 - PIXEL_BITS ) ) +#endif + + + /*************************************************************************/ + /* */ + /* TYPE DEFINITIONS */ + /* */ + + /* don't change the following types to FT_Int or FT_Pos, since we might */ + /* need to define them to "float" or "double" when experimenting with */ + /* new algorithms */ + + typedef long TCoord; /* integer scanline/pixel coordinate */ + typedef long TPos; /* sub-pixel coordinate */ + + /* determine the type used to store cell areas. This normally takes at */ + /* least PIXEL_BITS*2 + 1 bits. On 16-bit systems, we need to use */ + /* `long' instead of `int', otherwise bad things happen */ + +#if PIXEL_BITS <= 7 + + typedef int TArea; + +#else /* PIXEL_BITS >= 8 */ + + /* approximately determine the size of integers using an ANSI-C header */ +#if FT_UINT_MAX == 0xFFFFU + typedef long TArea; +#else + typedef int TArea; +#endif + +#endif /* PIXEL_BITS >= 8 */ + + + /* maximal number of gray spans in a call to the span callback */ +#define FT_MAX_GRAY_SPANS 32 + + + typedef struct TCell_* PCell; + + typedef struct TCell_ + { + TPos x; /* same with gray_TWorker.ex */ + TCoord cover; /* same with gray_TWorker.cover */ + TArea area; + PCell next; + + } TCell; + + + typedef struct gray_TWorker_ + { + TCoord ex, ey; + TPos min_ex, max_ex; + TPos min_ey, max_ey; + TPos count_ex, count_ey; + + TArea area; + TCoord cover; + int invalid; + + PCell cells; + FT_PtrDist max_cells; + FT_PtrDist num_cells; + + TCoord cx, cy; + TPos x, y; + + TPos last_ey; + + FT_Vector bez_stack[32 * 3 + 1]; + int lev_stack[32]; + + FT_Outline outline; + FT_Bitmap target; + FT_BBox clip_box; + + FT_Span gray_spans[FT_MAX_GRAY_SPANS]; + int num_gray_spans; + + FT_Raster_Span_Func render_span; + void* render_span_data; + int span_y; + + int band_size; + int band_shoot; + + ft_jmp_buf jump_buffer; + + void* buffer; + long buffer_size; + + PCell* ycells; + TPos ycount; + + } gray_TWorker, *gray_PWorker; + + +#ifndef FT_STATIC_RASTER +#define ras (*worker) +#else + static gray_TWorker ras; +#endif + + + typedef struct gray_TRaster_ + { + void* buffer; + long buffer_size; + int band_size; + void* memory; + gray_PWorker worker; + + } gray_TRaster, *gray_PRaster; + + + + /*************************************************************************/ + /* */ + /* Initialize the cells table. */ + /* */ + static void + gray_init_cells( RAS_ARG_ void* buffer, + long byte_size ) + { + ras.buffer = buffer; + ras.buffer_size = byte_size; + + ras.ycells = (PCell*) buffer; + ras.cells = NULL; + ras.max_cells = 0; + ras.num_cells = 0; + ras.area = 0; + ras.cover = 0; + ras.invalid = 1; + } + + + /*************************************************************************/ + /* */ + /* Compute the outline bounding box. */ + /* */ + static void + gray_compute_cbox( RAS_ARG ) + { + FT_Outline* outline = &ras.outline; + FT_Vector* vec = outline->points; + FT_Vector* limit = vec + outline->n_points; + + + if ( outline->n_points <= 0 ) + { + ras.min_ex = ras.max_ex = 0; + ras.min_ey = ras.max_ey = 0; + return; + } + + ras.min_ex = ras.max_ex = vec->x; + ras.min_ey = ras.max_ey = vec->y; + + vec++; + + for ( ; vec < limit; vec++ ) + { + TPos x = vec->x; + TPos y = vec->y; + + + if ( x < ras.min_ex ) ras.min_ex = x; + if ( x > ras.max_ex ) ras.max_ex = x; + if ( y < ras.min_ey ) ras.min_ey = y; + if ( y > ras.max_ey ) ras.max_ey = y; + } + + /* truncate the bounding box to integer pixels */ + ras.min_ex = ras.min_ex >> 6; + ras.min_ey = ras.min_ey >> 6; + ras.max_ex = ( ras.max_ex + 63 ) >> 6; + ras.max_ey = ( ras.max_ey + 63 ) >> 6; + } + + + /*************************************************************************/ + /* */ + /* Record the current cell in the table. */ + /* */ + static PCell + gray_find_cell( RAS_ARG ) + { + PCell *pcell, cell; + TPos x = ras.ex; + + + if ( x > ras.count_ex ) + x = ras.count_ex; + + pcell = &ras.ycells[ras.ey]; + for (;;) + { + cell = *pcell; + if ( cell == NULL || cell->x > x ) + break; + + if ( cell->x == x ) + goto Exit; + + pcell = &cell->next; + } + + if ( ras.num_cells >= ras.max_cells ) + ft_longjmp( ras.jump_buffer, 1 ); + + cell = ras.cells + ras.num_cells++; + cell->x = x; + cell->area = 0; + cell->cover = 0; + + cell->next = *pcell; + *pcell = cell; + + Exit: + return cell; + } + + + static void + gray_record_cell( RAS_ARG ) + { + if ( !ras.invalid && ( ras.area | ras.cover ) ) + { + PCell cell = gray_find_cell( RAS_VAR ); + + + cell->area += ras.area; + cell->cover += ras.cover; + } + } + + + /*************************************************************************/ + /* */ + /* Set the current cell to a new position. */ + /* */ + static void + gray_set_cell( RAS_ARG_ TCoord ex, + TCoord ey ) + { + /* Move the cell pointer to a new position. We set the `invalid' */ + /* flag to indicate that the cell isn't part of those we're interested */ + /* in during the render phase. This means that: */ + /* */ + /* . the new vertical position must be within min_ey..max_ey-1. */ + /* . the new horizontal position must be strictly less than max_ex */ + /* */ + /* Note that if a cell is to the left of the clipping region, it is */ + /* actually set to the (min_ex-1) horizontal position. */ + + /* All cells that are on the left of the clipping region go to the */ + /* min_ex - 1 horizontal position. */ + ey -= ras.min_ey; + + if ( ex > ras.max_ex ) + ex = ras.max_ex; + + ex -= ras.min_ex; + if ( ex < 0 ) + ex = -1; + + /* are we moving to a different cell ? */ + if ( ex != ras.ex || ey != ras.ey ) + { + /* record the current one if it is valid */ + if ( !ras.invalid ) + gray_record_cell( RAS_VAR ); + + ras.area = 0; + ras.cover = 0; + } + + ras.ex = ex; + ras.ey = ey; + ras.invalid = ( (unsigned)ey >= (unsigned)ras.count_ey || + ex >= ras.count_ex ); + } + + + /*************************************************************************/ + /* */ + /* Start a new contour at a given cell. */ + /* */ + static void + gray_start_cell( RAS_ARG_ TCoord ex, + TCoord ey ) + { + if ( ex > ras.max_ex ) + ex = (TCoord)( ras.max_ex ); + + if ( ex < ras.min_ex ) + ex = (TCoord)( ras.min_ex - 1 ); + + ras.area = 0; + ras.cover = 0; + ras.ex = ex - ras.min_ex; + ras.ey = ey - ras.min_ey; + ras.last_ey = SUBPIXELS( ey ); + ras.invalid = 0; + + gray_set_cell( RAS_VAR_ ex, ey ); + } + + + /*************************************************************************/ + /* */ + /* Render a scanline as one or more cells. */ + /* */ + static void + gray_render_scanline( RAS_ARG_ TCoord ey, + TPos x1, + TCoord y1, + TPos x2, + TCoord y2 ) + { + TCoord ex1, ex2, fx1, fx2, delta, mod, lift, rem; + long p, first, dx; + int incr; + + + dx = x2 - x1; + + ex1 = TRUNC( x1 ); + ex2 = TRUNC( x2 ); + fx1 = (TCoord)( x1 - SUBPIXELS( ex1 ) ); + fx2 = (TCoord)( x2 - SUBPIXELS( ex2 ) ); + + /* trivial case. Happens often */ + if ( y1 == y2 ) + { + gray_set_cell( RAS_VAR_ ex2, ey ); + return; + } + + /* everything is located in a single cell. That is easy! */ + /* */ + if ( ex1 == ex2 ) + { + delta = y2 - y1; + ras.area += (TArea)(( fx1 + fx2 ) * delta); + ras.cover += delta; + return; + } + + /* ok, we'll have to render a run of adjacent cells on the same */ + /* scanline... */ + /* */ + p = ( ONE_PIXEL - fx1 ) * ( y2 - y1 ); + first = ONE_PIXEL; + incr = 1; + + if ( dx < 0 ) + { + p = fx1 * ( y2 - y1 ); + first = 0; + incr = -1; + dx = -dx; + } + + delta = (TCoord)( p / dx ); + mod = (TCoord)( p % dx ); + if ( mod < 0 ) + { + delta--; + mod += (TCoord)dx; + } + + ras.area += (TArea)(( fx1 + first ) * delta); + ras.cover += delta; + + ex1 += incr; + gray_set_cell( RAS_VAR_ ex1, ey ); + y1 += delta; + + if ( ex1 != ex2 ) + { + p = ONE_PIXEL * ( y2 - y1 + delta ); + lift = (TCoord)( p / dx ); + rem = (TCoord)( p % dx ); + if ( rem < 0 ) + { + lift--; + rem += (TCoord)dx; + } + + mod -= (int)dx; + + while ( ex1 != ex2 ) + { + delta = lift; + mod += rem; + if ( mod >= 0 ) + { + mod -= (TCoord)dx; + delta++; + } + + ras.area += (TArea)(ONE_PIXEL * delta); + ras.cover += delta; + y1 += delta; + ex1 += incr; + gray_set_cell( RAS_VAR_ ex1, ey ); + } + } + + delta = y2 - y1; + ras.area += (TArea)(( fx2 + ONE_PIXEL - first ) * delta); + ras.cover += delta; + } + + + /*************************************************************************/ + /* */ + /* Render a given line as a series of scanlines. */ + /* */ + static void + gray_render_line( RAS_ARG_ TPos to_x, + TPos to_y ) + { + TCoord ey1, ey2, fy1, fy2, mod; + TPos dx, dy, x, x2; + long p, first; + int delta, rem, lift, incr; + + + ey1 = TRUNC( ras.last_ey ); + ey2 = TRUNC( to_y ); /* if (ey2 >= ras.max_ey) ey2 = ras.max_ey-1; */ + fy1 = (TCoord)( ras.y - ras.last_ey ); + fy2 = (TCoord)( to_y - SUBPIXELS( ey2 ) ); + + dx = to_x - ras.x; + dy = to_y - ras.y; + + /* XXX: we should do something about the trivial case where dx == 0, */ + /* as it happens very often! */ + + /* perform vertical clipping */ + { + TCoord min, max; + + + min = ey1; + max = ey2; + if ( ey1 > ey2 ) + { + min = ey2; + max = ey1; + } + if ( min >= ras.max_ey || max < ras.min_ey ) + goto End; + } + + /* everything is on a single scanline */ + if ( ey1 == ey2 ) + { + gray_render_scanline( RAS_VAR_ ey1, ras.x, fy1, to_x, fy2 ); + goto End; + } + + /* vertical line - avoid calling gray_render_scanline */ + incr = 1; + + if ( dx == 0 ) + { + TCoord ex = TRUNC( ras.x ); + TCoord two_fx = (TCoord)( ( ras.x - SUBPIXELS( ex ) ) << 1 ); + TArea area; + + + first = ONE_PIXEL; + if ( dy < 0 ) + { + first = 0; + incr = -1; + } + + delta = (int)( first - fy1 ); + ras.area += (TArea)two_fx * delta; + ras.cover += delta; + ey1 += incr; + + gray_set_cell( RAS_VAR_ ex, ey1 ); + + delta = (int)( first + first - ONE_PIXEL ); + area = (TArea)two_fx * delta; + while ( ey1 != ey2 ) + { + ras.area += area; + ras.cover += delta; + ey1 += incr; + + gray_set_cell( RAS_VAR_ ex, ey1 ); + } + + delta = (int)( fy2 - ONE_PIXEL + first ); + ras.area += (TArea)two_fx * delta; + ras.cover += delta; + + goto End; + } + + /* ok, we have to render several scanlines */ + p = ( ONE_PIXEL - fy1 ) * dx; + first = ONE_PIXEL; + incr = 1; + + if ( dy < 0 ) + { + p = fy1 * dx; + first = 0; + incr = -1; + dy = -dy; + } + + delta = (int)( p / dy ); + mod = (int)( p % dy ); + if ( mod < 0 ) + { + delta--; + mod += (TCoord)dy; + } + + x = ras.x + delta; + gray_render_scanline( RAS_VAR_ ey1, ras.x, fy1, x, (TCoord)first ); + + ey1 += incr; + gray_set_cell( RAS_VAR_ TRUNC( x ), ey1 ); + + if ( ey1 != ey2 ) + { + p = ONE_PIXEL * dx; + lift = (int)( p / dy ); + rem = (int)( p % dy ); + if ( rem < 0 ) + { + lift--; + rem += (int)dy; + } + mod -= (int)dy; + + while ( ey1 != ey2 ) + { + delta = lift; + mod += rem; + if ( mod >= 0 ) + { + mod -= (int)dy; + delta++; + } + + x2 = x + delta; + gray_render_scanline( RAS_VAR_ ey1, x, + (TCoord)( ONE_PIXEL - first ), x2, + (TCoord)first ); + x = x2; + + ey1 += incr; + gray_set_cell( RAS_VAR_ TRUNC( x ), ey1 ); + } + } + + gray_render_scanline( RAS_VAR_ ey1, x, + (TCoord)( ONE_PIXEL - first ), to_x, + fy2 ); + + End: + ras.x = to_x; + ras.y = to_y; + ras.last_ey = SUBPIXELS( ey2 ); + } + + + static void + gray_split_conic( FT_Vector* base ) + { + TPos a, b; + + + base[4].x = base[2].x; + b = base[1].x; + a = base[3].x = ( base[2].x + b ) / 2; + b = base[1].x = ( base[0].x + b ) / 2; + base[2].x = ( a + b ) / 2; + + base[4].y = base[2].y; + b = base[1].y; + a = base[3].y = ( base[2].y + b ) / 2; + b = base[1].y = ( base[0].y + b ) / 2; + base[2].y = ( a + b ) / 2; + } + + + static void + gray_render_conic( RAS_ARG_ const FT_Vector* control, + const FT_Vector* to ) + { + TPos dx, dy; + TPos min, max, y; + int top, level; + int* levels; + FT_Vector* arc; + + + levels = ras.lev_stack; + + arc = ras.bez_stack; + arc[0].x = UPSCALE( to->x ); + arc[0].y = UPSCALE( to->y ); + arc[1].x = UPSCALE( control->x ); + arc[1].y = UPSCALE( control->y ); + arc[2].x = ras.x; + arc[2].y = ras.y; + top = 0; + + dx = FT_ABS( arc[2].x + arc[0].x - 2 * arc[1].x ); + dy = FT_ABS( arc[2].y + arc[0].y - 2 * arc[1].y ); + if ( dx < dy ) + dx = dy; + + if ( dx < ONE_PIXEL / 4 ) + goto Draw; + + /* short-cut the arc that crosses the current band */ + min = max = arc[0].y; + + y = arc[1].y; + if ( y < min ) min = y; + if ( y > max ) max = y; + + y = arc[2].y; + if ( y < min ) min = y; + if ( y > max ) max = y; + + if ( TRUNC( min ) >= ras.max_ey || TRUNC( max ) < ras.min_ey ) + goto Draw; + + level = 0; + do + { + dx >>= 2; + level++; + } while ( dx > ONE_PIXEL / 4 ); + + levels[0] = level; + + do + { + level = levels[top]; + if ( level > 0 ) + { + gray_split_conic( arc ); + arc += 2; + top++; + levels[top] = levels[top - 1] = level - 1; + continue; + } + + Draw: + gray_render_line( RAS_VAR_ arc[0].x, arc[0].y ); + top--; + arc -= 2; + + } while ( top >= 0 ); + } + + + static void + gray_split_cubic( FT_Vector* base ) + { + TPos a, b, c, d; + + + base[6].x = base[3].x; + c = base[1].x; + d = base[2].x; + base[1].x = a = ( base[0].x + c ) / 2; + base[5].x = b = ( base[3].x + d ) / 2; + c = ( c + d ) / 2; + base[2].x = a = ( a + c ) / 2; + base[4].x = b = ( b + c ) / 2; + base[3].x = ( a + b ) / 2; + + base[6].y = base[3].y; + c = base[1].y; + d = base[2].y; + base[1].y = a = ( base[0].y + c ) / 2; + base[5].y = b = ( base[3].y + d ) / 2; + c = ( c + d ) / 2; + base[2].y = a = ( a + c ) / 2; + base[4].y = b = ( b + c ) / 2; + base[3].y = ( a + b ) / 2; + } + + + static void + gray_render_cubic( RAS_ARG_ const FT_Vector* control1, + const FT_Vector* control2, + const FT_Vector* to ) + { + FT_Vector* arc; + TPos min, max, y; + + + arc = ras.bez_stack; + arc[0].x = UPSCALE( to->x ); + arc[0].y = UPSCALE( to->y ); + arc[1].x = UPSCALE( control2->x ); + arc[1].y = UPSCALE( control2->y ); + arc[2].x = UPSCALE( control1->x ); + arc[2].y = UPSCALE( control1->y ); + arc[3].x = ras.x; + arc[3].y = ras.y; + + /* Short-cut the arc that crosses the current band. */ + min = max = arc[0].y; + + y = arc[1].y; + if ( y < min ) + min = y; + if ( y > max ) + max = y; + + y = arc[2].y; + if ( y < min ) + min = y; + if ( y > max ) + max = y; + + y = arc[3].y; + if ( y < min ) + min = y; + if ( y > max ) + max = y; + + if ( TRUNC( min ) >= ras.max_ey || TRUNC( max ) < ras.min_ey ) + goto Draw; + + for (;;) + { + /* Decide whether to split or draw. See `Rapid Termination */ + /* Evaluation for Recursive Subdivision of Bezier Curves' by Thomas */ + /* F. Hain, at */ + /* http://www.cis.southalabama.edu/~hain/general/Publications/Bezier/Camera-ready%20CISST02%202.pdf */ + + { + TPos dx, dy, dx_, dy_; + TPos dx1, dy1, dx2, dy2; + TPos L, s, s_limit; + + + /* dx and dy are x and y components of the P0-P3 chord vector. */ + dx = arc[3].x - arc[0].x; + dy = arc[3].y - arc[0].y; + + /* L is an (under)estimate of the Euclidean distance P0-P3. */ + /* */ + /* If dx >= dy, then r = sqrt(dx^2 + dy^2) can be overestimated */ + /* with least maximum error by */ + /* */ + /* r_upperbound = dx + (sqrt(2) - 1) * dy , */ + /* */ + /* where sqrt(2) - 1 can be (over)estimated by 107/256, giving an */ + /* error of no more than 8.4%. */ + /* */ + /* Similarly, some elementary calculus shows that r can be */ + /* underestimated with least maximum error by */ + /* */ + /* r_lowerbound = sqrt(2 + sqrt(2)) / 2 * dx */ + /* + sqrt(2 - sqrt(2)) / 2 * dy . */ + /* */ + /* 236/256 and 97/256 are (under)estimates of the two algebraic */ + /* numbers, giving an error of no more than 8.1%. */ + + dx_ = FT_ABS( dx ); + dy_ = FT_ABS( dy ); + + /* This is the same as */ + /* */ + /* L = ( 236 * FT_MAX( dx_, dy_ ) */ + /* + 97 * FT_MIN( dx_, dy_ ) ) >> 8; */ + L = ( dx_ > dy_ ? 236 * dx_ + 97 * dy_ + : 97 * dx_ + 236 * dy_ ) >> 8; + + /* Avoid possible arithmetic overflow below by splitting. */ + if ( L > 32767 ) + goto Split; + + /* Max deviation may be as much as (s/L) * 3/4 (if Hain's v = 1). */ + s_limit = L * (TPos)( ONE_PIXEL / 6 ); + + /* s is L * the perpendicular distance from P1 to the line P0-P3. */ + dx1 = arc[1].x - arc[0].x; + dy1 = arc[1].y - arc[0].y; + s = FT_ABS( dy * dx1 - dx * dy1 ); + + if ( s > s_limit ) + goto Split; + + /* s is L * the perpendicular distance from P2 to the line P0-P3. */ + dx2 = arc[2].x - arc[0].x; + dy2 = arc[2].y - arc[0].y; + s = FT_ABS( dy * dx2 - dx * dy2 ); + + if ( s > s_limit ) + goto Split; + + /* If P1 or P2 is outside P0-P3, split the curve. */ + if ( dy * dy1 + dx * dx1 < 0 || + dy * dy2 + dx * dx2 < 0 || + dy * (arc[3].y - arc[1].y) + dx * (arc[3].x - arc[1].x) < 0 || + dy * (arc[3].y - arc[2].y) + dx * (arc[3].x - arc[2].x) < 0 ) + goto Split; + + /* No reason to split. */ + goto Draw; + } + + Split: + gray_split_cubic( arc ); + arc += 3; + continue; + + Draw: + gray_render_line( RAS_VAR_ arc[0].x, arc[0].y ); + + if ( arc == ras.bez_stack ) + return; + + arc -= 3; + } + } + + + static int + gray_move_to( const FT_Vector* to, + gray_PWorker worker ) + { + TPos x, y; + + + /* record current cell, if any */ + gray_record_cell( RAS_VAR ); + + /* start to a new position */ + x = UPSCALE( to->x ); + y = UPSCALE( to->y ); + + gray_start_cell( RAS_VAR_ TRUNC( x ), TRUNC( y ) ); + + worker->x = x; + worker->y = y; + return 0; + } + + + static int + gray_line_to( const FT_Vector* to, + gray_PWorker worker ) + { + gray_render_line( RAS_VAR_ UPSCALE( to->x ), UPSCALE( to->y ) ); + return 0; + } + + + static int + gray_conic_to( const FT_Vector* control, + const FT_Vector* to, + gray_PWorker worker ) + { + gray_render_conic( RAS_VAR_ control, to ); + return 0; + } + + + static int + gray_cubic_to( const FT_Vector* control1, + const FT_Vector* control2, + const FT_Vector* to, + gray_PWorker worker ) + { + gray_render_cubic( RAS_VAR_ control1, control2, to ); + return 0; + } + + + static void + gray_render_span( int y, + int count, + const FT_Span* spans, + gray_PWorker worker ) + { + unsigned char* p; + FT_Bitmap* map = &worker->target; + + + /* first of all, compute the scanline offset */ + p = (unsigned char*)map->buffer - y * map->pitch; + if ( map->pitch >= 0 ) + p += (unsigned)( ( map->rows - 1 ) * map->pitch ); + + for ( ; count > 0; count--, spans++ ) + { + unsigned char coverage = spans->coverage; + + + if ( coverage ) + { + /* For small-spans it is faster to do it by ourselves than + * calling `memset'. This is mainly due to the cost of the + * function call. + */ + if ( spans->len >= 8 ) + FT_MEM_SET( p + spans->x, (unsigned char)coverage, spans->len ); + else + { + unsigned char* q = p + spans->x; + + + switch ( spans->len ) + { + case 7: *q++ = (unsigned char)coverage; + case 6: *q++ = (unsigned char)coverage; + case 5: *q++ = (unsigned char)coverage; + case 4: *q++ = (unsigned char)coverage; + case 3: *q++ = (unsigned char)coverage; + case 2: *q++ = (unsigned char)coverage; + case 1: *q = (unsigned char)coverage; + default: + ; + } + } + } + } + } + + + static void + gray_hline( RAS_ARG_ TCoord x, + TCoord y, + TPos area, + TCoord acount ) + { + FT_Span* span; + int count; + int coverage; + + + /* compute the coverage line's coverage, depending on the */ + /* outline fill rule */ + /* */ + /* the coverage percentage is area/(PIXEL_BITS*PIXEL_BITS*2) */ + /* */ + coverage = (int)( area >> ( PIXEL_BITS * 2 + 1 - 8 ) ); + /* use range 0..256 */ + if ( coverage < 0 ) + coverage = -coverage; + + if ( ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL ) + { + coverage &= 511; + + if ( coverage > 256 ) + coverage = 512 - coverage; + else if ( coverage == 256 ) + coverage = 255; + } + else + { + /* normal non-zero winding rule */ + if ( coverage >= 256 ) + coverage = 255; + } + + y += (TCoord)ras.min_ey; + x += (TCoord)ras.min_ex; + + /* FT_Span.x is a 16-bit short, so limit our coordinates appropriately */ + if ( x >= 32767 ) + x = 32767; + + /* FT_Span.y is an integer, so limit our coordinates appropriately */ + if ( y >= FT_INT_MAX ) + y = FT_INT_MAX; + + if ( coverage ) + { + /* see whether we can add this span to the current list */ + count = ras.num_gray_spans; + span = ras.gray_spans + count - 1; + if ( count > 0 && + ras.span_y == y && + (int)span->x + span->len == (int)x && + span->coverage == coverage ) + { + span->len = (unsigned short)( span->len + acount ); + return; + } + + if ( ras.span_y != y || count >= FT_MAX_GRAY_SPANS ) + { + if ( ras.render_span && count > 0 ) + ras.render_span( ras.span_y, count, ras.gray_spans, + ras.render_span_data ); + +#ifdef FT_DEBUG_LEVEL_TRACE + + if ( count > 0 ) + { + int n; + + + FT_TRACE7(( "y = %3d ", ras.span_y )); + span = ras.gray_spans; + for ( n = 0; n < count; n++, span++ ) + FT_TRACE7(( "[%d..%d]:%02x ", + span->x, span->x + span->len - 1, span->coverage )); + FT_TRACE7(( "\n" )); + } + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + ras.num_gray_spans = 0; + ras.span_y = (int)y; + + count = 0; + span = ras.gray_spans; + } + else + span++; + + /* add a gray span to the current list */ + span->x = (short)x; + span->len = (unsigned short)acount; + span->coverage = (unsigned char)coverage; + + ras.num_gray_spans++; + } + } + + +#ifdef FT_DEBUG_LEVEL_TRACE + + /* to be called while in the debugger -- */ + /* this function causes a compiler warning since it is unused otherwise */ + static void + gray_dump_cells( RAS_ARG ) + { + int yindex; + + + for ( yindex = 0; yindex < ras.ycount; yindex++ ) + { + PCell cell; + + + printf( "%3d:", yindex ); + + for ( cell = ras.ycells[yindex]; cell != NULL; cell = cell->next ) + printf( " (%3ld, c:%4ld, a:%6d)", cell->x, cell->cover, cell->area ); + printf( "\n" ); + } + } + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + + static void + gray_sweep( RAS_ARG_ const FT_Bitmap* target ) + { + int yindex; + + FT_UNUSED( target ); + + + if ( ras.num_cells == 0 ) + return; + + ras.num_gray_spans = 0; + + FT_TRACE7(( "gray_sweep: start\n" )); + + for ( yindex = 0; yindex < ras.ycount; yindex++ ) + { + PCell cell = ras.ycells[yindex]; + TCoord cover = 0; + TCoord x = 0; + + + for ( ; cell != NULL; cell = cell->next ) + { + TPos area; + + + if ( cell->x > x && cover != 0 ) + gray_hline( RAS_VAR_ x, yindex, cover * ( ONE_PIXEL * 2 ), + cell->x - x ); + + cover += cell->cover; + area = cover * ( ONE_PIXEL * 2 ) - cell->area; + + if ( area != 0 && cell->x >= 0 ) + gray_hline( RAS_VAR_ cell->x, yindex, area, 1 ); + + x = cell->x + 1; + } + + if ( cover != 0 ) + gray_hline( RAS_VAR_ x, yindex, cover * ( ONE_PIXEL * 2 ), + ras.count_ex - x ); + } + + if ( ras.render_span && ras.num_gray_spans > 0 ) + ras.render_span( ras.span_y, ras.num_gray_spans, + ras.gray_spans, ras.render_span_data ); + + FT_TRACE7(( "gray_sweep: end\n" )); + } + + +#ifdef _STANDALONE_ + + /*************************************************************************/ + /* */ + /* The following function should only compile in stand-alone mode, */ + /* i.e., when building this component without the rest of FreeType. */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_Outline_Decompose */ + /* */ + /* <Description> */ + /* Walk over an outline's structure to decompose it into individual */ + /* segments and Bézier arcs. This function is also able to emit */ + /* `move to' and `close to' operations to indicate the start and end */ + /* of new contours in the outline. */ + /* */ + /* <Input> */ + /* outline :: A pointer to the source target. */ + /* */ + /* func_interface :: A table of `emitters', i.e., function pointers */ + /* called during decomposition to indicate path */ + /* operations. */ + /* */ + /* <InOut> */ + /* user :: A typeless pointer which is passed to each */ + /* emitter during the decomposition. It can be */ + /* used to store the state during the */ + /* decomposition. */ + /* */ + /* <Return> */ + /* Error code. 0 means success. */ + /* */ + static int + FT_Outline_Decompose( const FT_Outline* outline, + const FT_Outline_Funcs* func_interface, + void* user ) + { +#undef SCALED +#define SCALED( x ) ( ( (x) << shift ) - delta ) + + FT_Vector v_last; + FT_Vector v_control; + FT_Vector v_start; + + FT_Vector* point; + FT_Vector* limit; + char* tags; + + int error; + + int n; /* index of contour in outline */ + int first; /* index of first point in contour */ + char tag; /* current point's state */ + + int shift; + TPos delta; + + + if ( !outline || !func_interface ) + return ErrRaster_Invalid_Argument; + + shift = func_interface->shift; + delta = func_interface->delta; + first = 0; + + for ( n = 0; n < outline->n_contours; n++ ) + { + int last; /* index of last point in contour */ + + + FT_TRACE5(( "FT_Outline_Decompose: Outline %d\n", n )); + + last = outline->contours[n]; + if ( last < 0 ) + goto Invalid_Outline; + limit = outline->points + last; + + v_start = outline->points[first]; + v_start.x = SCALED( v_start.x ); + v_start.y = SCALED( v_start.y ); + + v_last = outline->points[last]; + v_last.x = SCALED( v_last.x ); + v_last.y = SCALED( v_last.y ); + + v_control = v_start; + + point = outline->points + first; + tags = outline->tags + first; + tag = FT_CURVE_TAG( tags[0] ); + + /* A contour cannot start with a cubic control point! */ + if ( tag == FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + /* check first point to determine origin */ + if ( tag == FT_CURVE_TAG_CONIC ) + { + /* first point is conic control. Yes, this happens. */ + if ( FT_CURVE_TAG( outline->tags[last] ) == FT_CURVE_TAG_ON ) + { + /* start at last point if it is on the curve */ + v_start = v_last; + limit--; + } + else + { + /* if both first and last points are conic, */ + /* start at their middle and record its position */ + /* for closure */ + v_start.x = ( v_start.x + v_last.x ) / 2; + v_start.y = ( v_start.y + v_last.y ) / 2; + + v_last = v_start; + } + point--; + tags--; + } + + FT_TRACE5(( " move to (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0 )); + error = func_interface->move_to( &v_start, user ); + if ( error ) + goto Exit; + + while ( point < limit ) + { + point++; + tags++; + + tag = FT_CURVE_TAG( tags[0] ); + switch ( tag ) + { + case FT_CURVE_TAG_ON: /* emit a single line_to */ + { + FT_Vector vec; + + + vec.x = SCALED( point->x ); + vec.y = SCALED( point->y ); + + FT_TRACE5(( " line to (%.2f, %.2f)\n", + vec.x / 64.0, vec.y / 64.0 )); + error = func_interface->line_to( &vec, user ); + if ( error ) + goto Exit; + continue; + } + + case FT_CURVE_TAG_CONIC: /* consume conic arcs */ + v_control.x = SCALED( point->x ); + v_control.y = SCALED( point->y ); + + Do_Conic: + if ( point < limit ) + { + FT_Vector vec; + FT_Vector v_middle; + + + point++; + tags++; + tag = FT_CURVE_TAG( tags[0] ); + + vec.x = SCALED( point->x ); + vec.y = SCALED( point->y ); + + if ( tag == FT_CURVE_TAG_ON ) + { + FT_TRACE5(( " conic to (%.2f, %.2f)" + " with control (%.2f, %.2f)\n", + vec.x / 64.0, vec.y / 64.0, + v_control.x / 64.0, v_control.y / 64.0 )); + error = func_interface->conic_to( &v_control, &vec, user ); + if ( error ) + goto Exit; + continue; + } + + if ( tag != FT_CURVE_TAG_CONIC ) + goto Invalid_Outline; + + v_middle.x = ( v_control.x + vec.x ) / 2; + v_middle.y = ( v_control.y + vec.y ) / 2; + + FT_TRACE5(( " conic to (%.2f, %.2f)" + " with control (%.2f, %.2f)\n", + v_middle.x / 64.0, v_middle.y / 64.0, + v_control.x / 64.0, v_control.y / 64.0 )); + error = func_interface->conic_to( &v_control, &v_middle, user ); + if ( error ) + goto Exit; + + v_control = vec; + goto Do_Conic; + } + + FT_TRACE5(( " conic to (%.2f, %.2f)" + " with control (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0, + v_control.x / 64.0, v_control.y / 64.0 )); + error = func_interface->conic_to( &v_control, &v_start, user ); + goto Close; + + default: /* FT_CURVE_TAG_CUBIC */ + { + FT_Vector vec1, vec2; + + + if ( point + 1 > limit || + FT_CURVE_TAG( tags[1] ) != FT_CURVE_TAG_CUBIC ) + goto Invalid_Outline; + + point += 2; + tags += 2; + + vec1.x = SCALED( point[-2].x ); + vec1.y = SCALED( point[-2].y ); + + vec2.x = SCALED( point[-1].x ); + vec2.y = SCALED( point[-1].y ); + + if ( point <= limit ) + { + FT_Vector vec; + + + vec.x = SCALED( point->x ); + vec.y = SCALED( point->y ); + + FT_TRACE5(( " cubic to (%.2f, %.2f)" + " with controls (%.2f, %.2f) and (%.2f, %.2f)\n", + vec.x / 64.0, vec.y / 64.0, + vec1.x / 64.0, vec1.y / 64.0, + vec2.x / 64.0, vec2.y / 64.0 )); + error = func_interface->cubic_to( &vec1, &vec2, &vec, user ); + if ( error ) + goto Exit; + continue; + } + + FT_TRACE5(( " cubic to (%.2f, %.2f)" + " with controls (%.2f, %.2f) and (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0, + vec1.x / 64.0, vec1.y / 64.0, + vec2.x / 64.0, vec2.y / 64.0 )); + error = func_interface->cubic_to( &vec1, &vec2, &v_start, user ); + goto Close; + } + } + } + + /* close the contour with a line segment */ + FT_TRACE5(( " line to (%.2f, %.2f)\n", + v_start.x / 64.0, v_start.y / 64.0 )); + error = func_interface->line_to( &v_start, user ); + + Close: + if ( error ) + goto Exit; + + first = last + 1; + } + + FT_TRACE5(( "FT_Outline_Decompose: Done\n", n )); + return 0; + + Exit: + FT_TRACE5(( "FT_Outline_Decompose: Error %d\n", error )); + return error; + + Invalid_Outline: + return ErrRaster_Invalid_Outline; + } + +#endif /* _STANDALONE_ */ + + + typedef struct gray_TBand_ + { + TPos min, max; + + } gray_TBand; + + FT_DEFINE_OUTLINE_FUNCS(func_interface, + (FT_Outline_MoveTo_Func) gray_move_to, + (FT_Outline_LineTo_Func) gray_line_to, + (FT_Outline_ConicTo_Func)gray_conic_to, + (FT_Outline_CubicTo_Func)gray_cubic_to, + 0, + 0 + ) + + static int + gray_convert_glyph_inner( RAS_ARG ) + { + + volatile int error = 0; + +#ifdef FT_CONFIG_OPTION_PIC + FT_Outline_Funcs func_interface; + Init_Class_func_interface(&func_interface); +#endif + + if ( ft_setjmp( ras.jump_buffer ) == 0 ) + { + error = FT_Outline_Decompose( &ras.outline, &func_interface, &ras ); + gray_record_cell( RAS_VAR ); + } + else + error = ErrRaster_Memory_Overflow; + + return error; + } + + + static int + gray_convert_glyph( RAS_ARG ) + { + gray_TBand bands[40]; + gray_TBand* volatile band; + int volatile n, num_bands; + TPos volatile min, max, max_y; + FT_BBox* clip; + + + /* Set up state in the raster object */ + gray_compute_cbox( RAS_VAR ); + + /* clip to target bitmap, exit if nothing to do */ + clip = &ras.clip_box; + + if ( ras.max_ex <= clip->xMin || ras.min_ex >= clip->xMax || + ras.max_ey <= clip->yMin || ras.min_ey >= clip->yMax ) + return 0; + + if ( ras.min_ex < clip->xMin ) ras.min_ex = clip->xMin; + if ( ras.min_ey < clip->yMin ) ras.min_ey = clip->yMin; + + if ( ras.max_ex > clip->xMax ) ras.max_ex = clip->xMax; + if ( ras.max_ey > clip->yMax ) ras.max_ey = clip->yMax; + + ras.count_ex = ras.max_ex - ras.min_ex; + ras.count_ey = ras.max_ey - ras.min_ey; + + /* set up vertical bands */ + num_bands = (int)( ( ras.max_ey - ras.min_ey ) / ras.band_size ); + if ( num_bands == 0 ) + num_bands = 1; + if ( num_bands >= 39 ) + num_bands = 39; + + ras.band_shoot = 0; + + min = ras.min_ey; + max_y = ras.max_ey; + + for ( n = 0; n < num_bands; n++, min = max ) + { + max = min + ras.band_size; + if ( n == num_bands - 1 || max > max_y ) + max = max_y; + + bands[0].min = min; + bands[0].max = max; + band = bands; + + while ( band >= bands ) + { + TPos bottom, top, middle; + int error; + + { + PCell cells_max; + int yindex; + long cell_start, cell_end, cell_mod; + + + ras.ycells = (PCell*)ras.buffer; + ras.ycount = band->max - band->min; + + cell_start = sizeof ( PCell ) * ras.ycount; + cell_mod = cell_start % sizeof ( TCell ); + if ( cell_mod > 0 ) + cell_start += sizeof ( TCell ) - cell_mod; + + cell_end = ras.buffer_size; + cell_end -= cell_end % sizeof ( TCell ); + + cells_max = (PCell)( (char*)ras.buffer + cell_end ); + ras.cells = (PCell)( (char*)ras.buffer + cell_start ); + if ( ras.cells >= cells_max ) + goto ReduceBands; + + ras.max_cells = cells_max - ras.cells; + if ( ras.max_cells < 2 ) + goto ReduceBands; + + for ( yindex = 0; yindex < ras.ycount; yindex++ ) + ras.ycells[yindex] = NULL; + } + + ras.num_cells = 0; + ras.invalid = 1; + ras.min_ey = band->min; + ras.max_ey = band->max; + ras.count_ey = band->max - band->min; + + error = gray_convert_glyph_inner( RAS_VAR ); + + if ( !error ) + { + gray_sweep( RAS_VAR_ &ras.target ); + band--; + continue; + } + else if ( error != ErrRaster_Memory_Overflow ) + return 1; + + ReduceBands: + /* render pool overflow; we will reduce the render band by half */ + bottom = band->min; + top = band->max; + middle = bottom + ( ( top - bottom ) >> 1 ); + + /* This is too complex for a single scanline; there must */ + /* be some problems. */ + if ( middle == bottom ) + { +#ifdef FT_DEBUG_LEVEL_TRACE + FT_TRACE7(( "gray_convert_glyph: rotten glyph\n" )); +#endif + return 1; + } + + if ( bottom-top >= ras.band_size ) + ras.band_shoot++; + + band[1].min = bottom; + band[1].max = middle; + band[0].min = middle; + band[0].max = top; + band++; + } + } + + if ( ras.band_shoot > 8 && ras.band_size > 16 ) + ras.band_size = ras.band_size / 2; + + return 0; + } + + + static int + gray_raster_render( gray_PRaster raster, + const FT_Raster_Params* params ) + { + const FT_Outline* outline = (const FT_Outline*)params->source; + const FT_Bitmap* target_map = params->target; + gray_PWorker worker; + + + if ( !raster || !raster->buffer || !raster->buffer_size ) + return ErrRaster_Invalid_Argument; + + if ( !outline ) + return ErrRaster_Invalid_Outline; + + /* return immediately if the outline is empty */ + if ( outline->n_points == 0 || outline->n_contours <= 0 ) + return 0; + + if ( !outline->contours || !outline->points ) + return ErrRaster_Invalid_Outline; + + if ( outline->n_points != + outline->contours[outline->n_contours - 1] + 1 ) + return ErrRaster_Invalid_Outline; + + worker = raster->worker; + + /* if direct mode is not set, we must have a target bitmap */ + if ( !( params->flags & FT_RASTER_FLAG_DIRECT ) ) + { + if ( !target_map ) + return ErrRaster_Invalid_Argument; + + /* nothing to do */ + if ( !target_map->width || !target_map->rows ) + return 0; + + if ( !target_map->buffer ) + return ErrRaster_Invalid_Argument; + } + + /* this version does not support monochrome rendering */ + if ( !( params->flags & FT_RASTER_FLAG_AA ) ) + return ErrRaster_Invalid_Mode; + + /* compute clipping box */ + if ( !( params->flags & FT_RASTER_FLAG_DIRECT ) ) + { + /* compute clip box from target pixmap */ + ras.clip_box.xMin = 0; + ras.clip_box.yMin = 0; + ras.clip_box.xMax = target_map->width; + ras.clip_box.yMax = target_map->rows; + } + else if ( params->flags & FT_RASTER_FLAG_CLIP ) + ras.clip_box = params->clip_box; + else + { + ras.clip_box.xMin = -32768L; + ras.clip_box.yMin = -32768L; + ras.clip_box.xMax = 32767L; + ras.clip_box.yMax = 32767L; + } + + gray_init_cells( RAS_VAR_ raster->buffer, raster->buffer_size ); + + ras.outline = *outline; + ras.num_cells = 0; + ras.invalid = 1; + ras.band_size = raster->band_size; + ras.num_gray_spans = 0; + + if ( params->flags & FT_RASTER_FLAG_DIRECT ) + { + ras.render_span = (FT_Raster_Span_Func)params->gray_spans; + ras.render_span_data = params->user; + } + else + { + ras.target = *target_map; + ras.render_span = (FT_Raster_Span_Func)gray_render_span; + ras.render_span_data = &ras; + } + + return gray_convert_glyph( RAS_VAR ); + } + + + /**** RASTER OBJECT CREATION: In stand-alone mode, we simply use *****/ + /**** a static object. *****/ + +#ifdef _STANDALONE_ + + static int + gray_raster_new( void* memory, + FT_Raster* araster ) + { + static gray_TRaster the_raster; + + FT_UNUSED( memory ); + + + *araster = (FT_Raster)&the_raster; + FT_MEM_ZERO( &the_raster, sizeof ( the_raster ) ); + + return 0; + } + + + static void + gray_raster_done( FT_Raster raster ) + { + /* nothing */ + FT_UNUSED( raster ); + } + +#else /* !_STANDALONE_ */ + + static int + gray_raster_new( FT_Memory memory, + FT_Raster* araster ) + { + FT_Error error; + gray_PRaster raster = NULL; + + + *araster = 0; + if ( !FT_ALLOC( raster, sizeof ( gray_TRaster ) ) ) + { + raster->memory = memory; + *araster = (FT_Raster)raster; + } + + return error; + } + + + static void + gray_raster_done( FT_Raster raster ) + { + FT_Memory memory = (FT_Memory)((gray_PRaster)raster)->memory; + + + FT_FREE( raster ); + } + +#endif /* !_STANDALONE_ */ + + + static void + gray_raster_reset( FT_Raster raster, + char* pool_base, + long pool_size ) + { + gray_PRaster rast = (gray_PRaster)raster; + + + if ( raster ) + { + if ( pool_base && pool_size >= (long)sizeof ( gray_TWorker ) + 2048 ) + { + gray_PWorker worker = (gray_PWorker)pool_base; + + + rast->worker = worker; + rast->buffer = pool_base + + ( ( sizeof ( gray_TWorker ) + + sizeof ( TCell ) - 1 ) & + ~( sizeof ( TCell ) - 1 ) ); + rast->buffer_size = (long)( ( pool_base + pool_size ) - + (char*)rast->buffer ) & + ~( sizeof ( TCell ) - 1 ); + rast->band_size = (int)( rast->buffer_size / + ( sizeof ( TCell ) * 8 ) ); + } + else + { + rast->buffer = NULL; + rast->buffer_size = 0; + rast->worker = NULL; + } + } + } + + + FT_DEFINE_RASTER_FUNCS(ft_grays_raster, + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Raster_New_Func) gray_raster_new, + (FT_Raster_Reset_Func) gray_raster_reset, + (FT_Raster_Set_Mode_Func)0, + (FT_Raster_Render_Func) gray_raster_render, + (FT_Raster_Done_Func) gray_raster_done + ) + + +/* END */ + + +/* Local Variables: */ +/* coding: utf-8 */ +/* End: */ diff --git a/src/smooth/ftgrays.h b/src/smooth/ftgrays.h new file mode 100644 index 0000000..f20f55f --- /dev/null +++ b/src/smooth/ftgrays.h @@ -0,0 +1,58 @@ +/***************************************************************************/ +/* */ +/* ftgrays.h */ +/* */ +/* FreeType smooth renderer declaration */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTGRAYS_H__ +#define __FTGRAYS_H__ + +#ifdef __cplusplus + extern "C" { +#endif + + +#ifdef _STANDALONE_ +#include "ftimage.h" +#else +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H /* for FT_CONFIG_OPTION_PIC */ +#include FT_IMAGE_H +#endif + + + /*************************************************************************/ + /* */ + /* To make ftgrays.h independent from configuration files we check */ + /* whether FT_EXPORT_VAR has been defined already. */ + /* */ + /* On some systems and compilers (Win32 mostly), an extra keyword is */ + /* necessary to compile the library as a DLL. */ + /* */ +#ifndef FT_EXPORT_VAR +#define FT_EXPORT_VAR( x ) extern x +#endif + + FT_EXPORT_VAR( const FT_Raster_Funcs ) ft_grays_raster; + + +#ifdef __cplusplus + } +#endif + +#endif /* __FTGRAYS_H__ */ + + +/* END */ diff --git a/src/smooth/ftsmerrs.h b/src/smooth/ftsmerrs.h new file mode 100644 index 0000000..413d2f1 --- /dev/null +++ b/src/smooth/ftsmerrs.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* ftsmerrs.h */ +/* */ +/* smooth renderer error codes (specification only). */ +/* */ +/* Copyright 2001, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the smooth renderer error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __FTSMERRS_H__ +#define __FTSMERRS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX Smooth_Err_ +#define FT_ERR_BASE FT_Mod_Err_Smooth + +#include FT_ERRORS_H + +#endif /* __FTSMERRS_H__ */ + + +/* END */ diff --git a/src/smooth/ftsmooth.c b/src/smooth/ftsmooth.c new file mode 100644 index 0000000..00499cc --- /dev/null +++ b/src/smooth/ftsmooth.c @@ -0,0 +1,504 @@ +/***************************************************************************/ +/* */ +/* ftsmooth.c */ +/* */ +/* Anti-aliasing renderer interface (body). */ +/* */ +/* Copyright 2000-2006, 2009-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_OUTLINE_H +#include "ftsmooth.h" +#include "ftgrays.h" +#include "ftspic.h" + +#include "ftsmerrs.h" + + + /* initialize renderer -- init its raster */ + static FT_Error + ft_smooth_init( FT_Renderer render ) + { + FT_Library library = FT_MODULE_LIBRARY( render ); + + + render->clazz->raster_class->raster_reset( render->raster, + library->raster_pool, + library->raster_pool_size ); + + return 0; + } + + + /* sets render-specific mode */ + static FT_Error + ft_smooth_set_mode( FT_Renderer render, + FT_ULong mode_tag, + FT_Pointer data ) + { + /* we simply pass it to the raster */ + return render->clazz->raster_class->raster_set_mode( render->raster, + mode_tag, + data ); + } + + /* transform a given glyph image */ + static FT_Error + ft_smooth_transform( FT_Renderer render, + FT_GlyphSlot slot, + const FT_Matrix* matrix, + const FT_Vector* delta ) + { + FT_Error error = Smooth_Err_Ok; + + + if ( slot->format != render->glyph_format ) + { + error = Smooth_Err_Invalid_Argument; + goto Exit; + } + + if ( matrix ) + FT_Outline_Transform( &slot->outline, matrix ); + + if ( delta ) + FT_Outline_Translate( &slot->outline, delta->x, delta->y ); + + Exit: + return error; + } + + + /* return the glyph's control box */ + static void + ft_smooth_get_cbox( FT_Renderer render, + FT_GlyphSlot slot, + FT_BBox* cbox ) + { + FT_MEM_ZERO( cbox, sizeof ( *cbox ) ); + + if ( slot->format == render->glyph_format ) + FT_Outline_Get_CBox( &slot->outline, cbox ); + } + + + /* convert a slot's glyph image into a bitmap */ + static FT_Error + ft_smooth_render_generic( FT_Renderer render, + FT_GlyphSlot slot, + FT_Render_Mode mode, + const FT_Vector* origin, + FT_Render_Mode required_mode ) + { + FT_Error error; + FT_Outline* outline = NULL; + FT_BBox cbox; + FT_Pos width, height, pitch; +#ifndef FT_CONFIG_OPTION_SUBPIXEL_RENDERING + FT_Pos height_org, width_org; +#endif + FT_Bitmap* bitmap; + FT_Memory memory; + FT_Int hmul = mode == FT_RENDER_MODE_LCD; + FT_Int vmul = mode == FT_RENDER_MODE_LCD_V; + FT_Pos x_shift, y_shift, x_left, y_top; + + FT_Raster_Params params; + + + /* check glyph image format */ + if ( slot->format != render->glyph_format ) + { + error = Smooth_Err_Invalid_Argument; + goto Exit; + } + + /* check mode */ + if ( mode != required_mode ) + return Smooth_Err_Cannot_Render_Glyph; + + outline = &slot->outline; + + /* translate the outline to the new origin if needed */ + if ( origin ) + FT_Outline_Translate( outline, origin->x, origin->y ); + + /* compute the control box, and grid fit it */ + FT_Outline_Get_CBox( outline, &cbox ); + + cbox.xMin = FT_PIX_FLOOR( cbox.xMin ); + cbox.yMin = FT_PIX_FLOOR( cbox.yMin ); + cbox.xMax = FT_PIX_CEIL( cbox.xMax ); + cbox.yMax = FT_PIX_CEIL( cbox.yMax ); + + if ( cbox.xMin < 0 && cbox.xMax > FT_INT_MAX + cbox.xMin ) + { + FT_ERROR(( "ft_smooth_render_generic: glyph too large:" + " xMin = %d, xMax = %d\n", + cbox.xMin >> 6, cbox.xMax >> 6 )); + return Smooth_Err_Raster_Overflow; + } + else + width = ( cbox.xMax - cbox.xMin ) >> 6; + + if ( cbox.yMin < 0 && cbox.yMax > FT_INT_MAX + cbox.yMin ) + { + FT_ERROR(( "ft_smooth_render_generic: glyph too large:" + " yMin = %d, yMax = %d\n", + cbox.yMin >> 6, cbox.yMax >> 6 )); + return Smooth_Err_Raster_Overflow; + } + else + height = ( cbox.yMax - cbox.yMin ) >> 6; + + bitmap = &slot->bitmap; + memory = render->root.memory; + +#ifndef FT_CONFIG_OPTION_SUBPIXEL_RENDERING + width_org = width; + height_org = height; +#endif + + /* release old bitmap buffer */ + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + { + FT_FREE( bitmap->buffer ); + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + + /* allocate new one */ + pitch = width; + if ( hmul ) + { + width = width * 3; + pitch = FT_PAD_CEIL( width, 4 ); + } + + if ( vmul ) + height *= 3; + + x_shift = (FT_Int) cbox.xMin; + y_shift = (FT_Int) cbox.yMin; + x_left = (FT_Int)( cbox.xMin >> 6 ); + y_top = (FT_Int)( cbox.yMax >> 6 ); + +#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING + + if ( slot->library->lcd_filter_func ) + { + FT_Int extra = slot->library->lcd_extra; + + + if ( hmul ) + { + x_shift -= 64 * ( extra >> 1 ); + width += 3 * extra; + pitch = FT_PAD_CEIL( width, 4 ); + x_left -= extra >> 1; + } + + if ( vmul ) + { + y_shift -= 64 * ( extra >> 1 ); + height += 3 * extra; + y_top += extra >> 1; + } + } + +#endif + +#if FT_UINT_MAX > 0xFFFFU + + /* Required check is ( pitch * height < FT_ULONG_MAX ), */ + /* but we care realistic cases only. Always pitch <= width. */ + if ( width > 0x7FFF || height > 0x7FFF ) + { + FT_ERROR(( "ft_smooth_render_generic: glyph too large: %u x %u\n", + width, height )); + return Smooth_Err_Raster_Overflow; + } + +#endif + + bitmap->pixel_mode = FT_PIXEL_MODE_GRAY; + bitmap->num_grays = 256; + bitmap->width = width; + bitmap->rows = height; + bitmap->pitch = pitch; + + /* translate outline to render it into the bitmap */ + FT_Outline_Translate( outline, -x_shift, -y_shift ); + + if ( FT_ALLOC( bitmap->buffer, (FT_ULong)pitch * height ) ) + goto Exit; + + slot->internal->flags |= FT_GLYPH_OWN_BITMAP; + + /* set up parameters */ + params.target = bitmap; + params.source = outline; + params.flags = FT_RASTER_FLAG_AA; + +#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING + + /* implode outline if needed */ + { + FT_Vector* points = outline->points; + FT_Vector* points_end = points + outline->n_points; + FT_Vector* vec; + + + if ( hmul ) + for ( vec = points; vec < points_end; vec++ ) + vec->x *= 3; + + if ( vmul ) + for ( vec = points; vec < points_end; vec++ ) + vec->y *= 3; + } + + /* render outline into the bitmap */ + error = render->raster_render( render->raster, ¶ms ); + + /* deflate outline if needed */ + { + FT_Vector* points = outline->points; + FT_Vector* points_end = points + outline->n_points; + FT_Vector* vec; + + + if ( hmul ) + for ( vec = points; vec < points_end; vec++ ) + vec->x /= 3; + + if ( vmul ) + for ( vec = points; vec < points_end; vec++ ) + vec->y /= 3; + } + + if ( slot->library->lcd_filter_func ) + slot->library->lcd_filter_func( bitmap, mode, slot->library ); + +#else /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ + + /* render outline into bitmap */ + error = render->raster_render( render->raster, ¶ms ); + + /* expand it horizontally */ + if ( hmul ) + { + FT_Byte* line = bitmap->buffer; + FT_UInt hh; + + + for ( hh = height_org; hh > 0; hh--, line += pitch ) + { + FT_UInt xx; + FT_Byte* end = line + width; + + + for ( xx = width_org; xx > 0; xx-- ) + { + FT_UInt pixel = line[xx-1]; + + + end[-3] = (FT_Byte)pixel; + end[-2] = (FT_Byte)pixel; + end[-1] = (FT_Byte)pixel; + end -= 3; + } + } + } + + /* expand it vertically */ + if ( vmul ) + { + FT_Byte* read = bitmap->buffer + ( height - height_org ) * pitch; + FT_Byte* write = bitmap->buffer; + FT_UInt hh; + + + for ( hh = height_org; hh > 0; hh-- ) + { + ft_memcpy( write, read, pitch ); + write += pitch; + + ft_memcpy( write, read, pitch ); + write += pitch; + + ft_memcpy( write, read, pitch ); + write += pitch; + read += pitch; + } + } + +#endif /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */ + + FT_Outline_Translate( outline, x_shift, y_shift ); + + /* + * XXX: on 16bit system, we return an error for huge bitmap + * to prevent an overflow. + */ + if ( x_left > FT_INT_MAX || y_top > FT_INT_MAX ) + return Smooth_Err_Invalid_Pixel_Size; + + if ( error ) + goto Exit; + + slot->format = FT_GLYPH_FORMAT_BITMAP; + slot->bitmap_left = (FT_Int)x_left; + slot->bitmap_top = (FT_Int)y_top; + + Exit: + if ( outline && origin ) + FT_Outline_Translate( outline, -origin->x, -origin->y ); + + return error; + } + + + /* convert a slot's glyph image into a bitmap */ + static FT_Error + ft_smooth_render( FT_Renderer render, + FT_GlyphSlot slot, + FT_Render_Mode mode, + const FT_Vector* origin ) + { + if ( mode == FT_RENDER_MODE_LIGHT ) + mode = FT_RENDER_MODE_NORMAL; + + return ft_smooth_render_generic( render, slot, mode, origin, + FT_RENDER_MODE_NORMAL ); + } + + + /* convert a slot's glyph image into a horizontal LCD bitmap */ + static FT_Error + ft_smooth_render_lcd( FT_Renderer render, + FT_GlyphSlot slot, + FT_Render_Mode mode, + const FT_Vector* origin ) + { + FT_Error error; + + error = ft_smooth_render_generic( render, slot, mode, origin, + FT_RENDER_MODE_LCD ); + if ( !error ) + slot->bitmap.pixel_mode = FT_PIXEL_MODE_LCD; + + return error; + } + + + /* convert a slot's glyph image into a vertical LCD bitmap */ + static FT_Error + ft_smooth_render_lcd_v( FT_Renderer render, + FT_GlyphSlot slot, + FT_Render_Mode mode, + const FT_Vector* origin ) + { + FT_Error error; + + error = ft_smooth_render_generic( render, slot, mode, origin, + FT_RENDER_MODE_LCD_V ); + if ( !error ) + slot->bitmap.pixel_mode = FT_PIXEL_MODE_LCD_V; + + return error; + } + + + FT_DEFINE_RENDERER( ft_smooth_renderer_class, + + FT_MODULE_RENDERER, + sizeof ( FT_RendererRec ), + + "smooth", + 0x10000L, + 0x20000L, + + 0, /* module specific interface */ + + (FT_Module_Constructor)ft_smooth_init, + (FT_Module_Destructor) 0, + (FT_Module_Requester) 0 + , + + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Renderer_RenderFunc) ft_smooth_render, + (FT_Renderer_TransformFunc)ft_smooth_transform, + (FT_Renderer_GetCBoxFunc) ft_smooth_get_cbox, + (FT_Renderer_SetModeFunc) ft_smooth_set_mode, + + (FT_Raster_Funcs*) &FT_GRAYS_RASTER_GET + ) + + + FT_DEFINE_RENDERER( ft_smooth_lcd_renderer_class, + + FT_MODULE_RENDERER, + sizeof ( FT_RendererRec ), + + "smooth-lcd", + 0x10000L, + 0x20000L, + + 0, /* module specific interface */ + + (FT_Module_Constructor)ft_smooth_init, + (FT_Module_Destructor) 0, + (FT_Module_Requester) 0 + , + + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Renderer_RenderFunc) ft_smooth_render_lcd, + (FT_Renderer_TransformFunc)ft_smooth_transform, + (FT_Renderer_GetCBoxFunc) ft_smooth_get_cbox, + (FT_Renderer_SetModeFunc) ft_smooth_set_mode, + + (FT_Raster_Funcs*) &FT_GRAYS_RASTER_GET + ) + + FT_DEFINE_RENDERER( ft_smooth_lcdv_renderer_class, + + FT_MODULE_RENDERER, + sizeof ( FT_RendererRec ), + + "smooth-lcdv", + 0x10000L, + 0x20000L, + + 0, /* module specific interface */ + + (FT_Module_Constructor)ft_smooth_init, + (FT_Module_Destructor) 0, + (FT_Module_Requester) 0 + , + + FT_GLYPH_FORMAT_OUTLINE, + + (FT_Renderer_RenderFunc) ft_smooth_render_lcd_v, + (FT_Renderer_TransformFunc)ft_smooth_transform, + (FT_Renderer_GetCBoxFunc) ft_smooth_get_cbox, + (FT_Renderer_SetModeFunc) ft_smooth_set_mode, + + (FT_Raster_Funcs*) &FT_GRAYS_RASTER_GET + ) + + +/* END */ diff --git a/src/smooth/ftsmooth.h b/src/smooth/ftsmooth.h new file mode 100644 index 0000000..3708790 --- /dev/null +++ b/src/smooth/ftsmooth.h @@ -0,0 +1,49 @@ +/***************************************************************************/ +/* */ +/* ftsmooth.h */ +/* */ +/* Anti-aliasing renderer interface (specification). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTSMOOTH_H__ +#define __FTSMOOTH_H__ + + +#include <ft2build.h> +#include FT_RENDER_H + + +FT_BEGIN_HEADER + + +#ifndef FT_CONFIG_OPTION_NO_STD_RASTER + FT_DECLARE_RENDERER( ft_std_renderer_class ) +#endif + +#ifndef FT_CONFIG_OPTION_NO_SMOOTH_RASTER + FT_DECLARE_RENDERER( ft_smooth_renderer_class ) + + FT_DECLARE_RENDERER( ft_smooth_lcd_renderer_class ) + + FT_DECLARE_RENDERER( ft_smooth_lcd_v_renderer_class ) +#endif + + + +FT_END_HEADER + +#endif /* __FTSMOOTH_H__ */ + + +/* END */ diff --git a/src/smooth/ftspic.c b/src/smooth/ftspic.c new file mode 100644 index 0000000..601bcf9 --- /dev/null +++ b/src/smooth/ftspic.c @@ -0,0 +1,107 @@ +/***************************************************************************/ +/* */ +/* ftspic.c */ +/* */ +/* The FreeType position independent code services for smooth module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "ftspic.h" +#include "ftsmerrs.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from ftgrays.c */ + void + FT_Init_Class_ft_grays_raster( FT_Raster_Funcs* funcs ); + + void + ft_smooth_renderer_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + + + if ( pic_container->smooth ) + { + SmoothPIC* container = (SmoothPIC*)pic_container->smooth; + + + if ( --container->ref_count ) + return; + FT_FREE( container ); + pic_container->smooth = NULL; + } + } + + + FT_Error + ft_smooth_renderer_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = Smooth_Err_Ok; + SmoothPIC* container; + FT_Memory memory = library->memory; + + + /* since this function also serve smooth_lcd and smooth_lcdv renderers, + it implements reference counting */ + if ( pic_container->smooth ) + { + ((SmoothPIC*)pic_container->smooth)->ref_count++; + return error; + } + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->smooth = container; + container->ref_count = 1; + + /* initialize pointer table - this is how the module usually expects this data */ + FT_Init_Class_ft_grays_raster( &container->ft_grays_raster ); +/*Exit:*/ + if ( error ) + ft_smooth_renderer_class_pic_free( library ); + return error; + } + + /* re-route these init and free functions to the above functions */ + FT_Error ft_smooth_lcd_renderer_class_pic_init( FT_Library library ) + { + return ft_smooth_renderer_class_pic_init( library ); + } + + void ft_smooth_lcd_renderer_class_pic_free( FT_Library library ) + { + ft_smooth_renderer_class_pic_free( library ); + } + + FT_Error ft_smooth_lcdv_renderer_class_pic_init( FT_Library library ) + { + return ft_smooth_renderer_class_pic_init( library ); + } + + void ft_smooth_lcdv_renderer_class_pic_free( FT_Library library ) + { + ft_smooth_renderer_class_pic_free( library ); + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/src/smooth/ftspic.h b/src/smooth/ftspic.h new file mode 100644 index 0000000..4686f5e --- /dev/null +++ b/src/smooth/ftspic.h @@ -0,0 +1,69 @@ +/***************************************************************************/ +/* */ +/* ftspic.h */ +/* */ +/* The FreeType position independent code services for smooth module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __FTSPIC_H__ +#define __FTSPIC_H__ + + +FT_BEGIN_HEADER + +#include FT_INTERNAL_PIC_H + +#ifndef FT_CONFIG_OPTION_PIC +#define FT_GRAYS_RASTER_GET ft_grays_raster + +#else /* FT_CONFIG_OPTION_PIC */ + + typedef struct SmoothPIC_ + { + int ref_count; + FT_Raster_Funcs ft_grays_raster; + } SmoothPIC; + +#define GET_PIC(lib) ((SmoothPIC*)((lib)->pic_container.smooth)) +#define FT_GRAYS_RASTER_GET (GET_PIC(library)->ft_grays_raster) + + /* see ftspic.c for the implementation */ + void + ft_smooth_renderer_class_pic_free( FT_Library library ); + + void + ft_smooth_lcd_renderer_class_pic_free( FT_Library library ); + + void + ft_smooth_lcdv_renderer_class_pic_free( FT_Library library ); + + FT_Error + ft_smooth_renderer_class_pic_init( FT_Library library ); + + FT_Error + ft_smooth_lcd_renderer_class_pic_init( FT_Library library ); + + FT_Error + ft_smooth_lcdv_renderer_class_pic_init( FT_Library library ); + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __FTSPIC_H__ */ + + +/* END */ diff --git a/src/smooth/module.mk b/src/smooth/module.mk new file mode 100644 index 0000000..47f6c04 --- /dev/null +++ b/src/smooth/module.mk @@ -0,0 +1,27 @@ +# +# FreeType 2 smooth renderer module definition +# + + +# Copyright 1996-2000, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += SMOOTH_RENDERER + +define SMOOTH_RENDERER +$(OPEN_DRIVER) FT_Renderer_Class, ft_smooth_renderer_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)smooth $(ECHO_DRIVER_DESC)anti-aliased bitmap renderer$(ECHO_DRIVER_DONE) +$(OPEN_DRIVER) FT_Renderer_Class, ft_smooth_lcd_renderer_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)smooth $(ECHO_DRIVER_DESC)anti-aliased bitmap renderer for LCDs$(ECHO_DRIVER_DONE) +$(OPEN_DRIVER) FT_Renderer_Class, ft_smooth_lcdv_renderer_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)smooth $(ECHO_DRIVER_DESC)anti-aliased bitmap renderer for vertical LCDs$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/smooth/rules.mk b/src/smooth/rules.mk new file mode 100644 index 0000000..88d0aa5 --- /dev/null +++ b/src/smooth/rules.mk @@ -0,0 +1,70 @@ +# +# FreeType 2 smooth renderer module build rules +# + + +# Copyright 1996-2000, 2001, 2003, 2011 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# smooth driver directory +# +SMOOTH_DIR := $(SRC_DIR)/smooth + +# compilation flags for the driver +# +SMOOTH_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(SMOOTH_DIR)) + + +# smooth driver sources (i.e., C files) +# +SMOOTH_DRV_SRC := $(SMOOTH_DIR)/ftgrays.c \ + $(SMOOTH_DIR)/ftsmooth.c \ + $(SMOOTH_DIR)/ftspic.c + + +# smooth driver headers +# +SMOOTH_DRV_H := $(SMOOTH_DRV_SRC:%c=%h) \ + $(SMOOTH_DIR)/ftsmerrs.h + + +# smooth driver object(s) +# +# SMOOTH_DRV_OBJ_M is used during `multi' builds. +# SMOOTH_DRV_OBJ_S is used during `single' builds. +# +SMOOTH_DRV_OBJ_M := $(SMOOTH_DRV_SRC:$(SMOOTH_DIR)/%.c=$(OBJ_DIR)/%.$O) +SMOOTH_DRV_OBJ_S := $(OBJ_DIR)/smooth.$O + +# smooth driver source file for single build +# +SMOOTH_DRV_SRC_S := $(SMOOTH_DIR)/smooth.c + + +# smooth driver - single object +# +$(SMOOTH_DRV_OBJ_S): $(SMOOTH_DRV_SRC_S) $(SMOOTH_DRV_SRC) \ + $(FREETYPE_H) $(SMOOTH_DRV_H) + $(SMOOTH_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(SMOOTH_DRV_SRC_S)) + + +# smooth driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(SMOOTH_DIR)/%.c $(FREETYPE_H) $(SMOOTH_DRV_H) + $(SMOOTH_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(SMOOTH_DRV_OBJ_S) +DRV_OBJS_M += $(SMOOTH_DRV_OBJ_M) + + +# EOF diff --git a/src/smooth/smooth.c b/src/smooth/smooth.c new file mode 100644 index 0000000..a8ac51f --- /dev/null +++ b/src/smooth/smooth.c @@ -0,0 +1,27 @@ +/***************************************************************************/ +/* */ +/* smooth.c */ +/* */ +/* FreeType anti-aliasing rasterer module component (body only). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include <ft2build.h> +#include "ftspic.c" +#include "ftgrays.c" +#include "ftsmooth.c" + + +/* END */ diff --git a/src/tools/Jamfile b/src/tools/Jamfile new file mode 100644 index 0000000..475161e --- /dev/null +++ b/src/tools/Jamfile @@ -0,0 +1,5 @@ +# Jamfile for src/tools +# +SubDir FT2_TOP src tools ; + +Main apinames : apinames.c ; diff --git a/src/tools/apinames.c b/src/tools/apinames.c new file mode 100644 index 0000000..3dc6559 --- /dev/null +++ b/src/tools/apinames.c @@ -0,0 +1,450 @@ +/* + * This little program is used to parse the FreeType headers and + * find the declaration of all public APIs. This is easy, because + * they all look like the following: + * + * FT_EXPORT( return_type ) + * function_name( function arguments ); + * + * You must pass the list of header files as arguments. Wildcards are + * accepted if you are using GCC for compilation (and probably by + * other compilers too). + * + * Author: David Turner, 2005, 2006, 2008-2012 + * + * This code is explicitly placed into the public domain. + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> + +#define PROGRAM_NAME "apinames" +#define PROGRAM_VERSION "0.1" + +#define LINEBUFF_SIZE 1024 + +typedef enum OutputFormat_ +{ + OUTPUT_LIST = 0, /* output the list of names, one per line */ + OUTPUT_WINDOWS_DEF, /* output a Windows .DEF file for Visual C++ or Mingw */ + OUTPUT_BORLAND_DEF, /* output a Windows .DEF file for Borland C++ */ + OUTPUT_WATCOM_LBC /* output a Watcom Linker Command File */ + +} OutputFormat; + + +static void +panic( const char* message ) +{ + fprintf( stderr, "PANIC: %s\n", message ); + exit(2); +} + + +typedef struct NameRec_ +{ + char* name; + unsigned int hash; + +} NameRec, *Name; + +static Name the_names; +static int num_names; +static int max_names; + +static void +names_add( const char* name, + const char* end ) +{ + unsigned int h; + int nn, len; + Name nm; + + if ( end <= name ) + return; + + /* compute hash value */ + len = (int)(end - name); + h = 0; + for ( nn = 0; nn < len; nn++ ) + h = h*33 + name[nn]; + + /* check for an pre-existing name */ + for ( nn = 0; nn < num_names; nn++ ) + { + nm = the_names + nn; + + if ( (int)nm->hash == h && + memcmp( name, nm->name, len ) == 0 && + nm->name[len] == 0 ) + return; + } + + /* add new name */ + if ( num_names >= max_names ) + { + max_names += (max_names >> 1) + 4; + the_names = (NameRec*)realloc( the_names, + sizeof ( the_names[0] ) * max_names ); + if ( the_names == NULL ) + panic( "not enough memory" ); + } + nm = &the_names[num_names++]; + + nm->hash = h; + nm->name = (char*)malloc( len+1 ); + if ( nm->name == NULL ) + panic( "not enough memory" ); + + memcpy( nm->name, name, len ); + nm->name[len] = 0; +} + + +static int +name_compare( const void* name1, + const void* name2 ) +{ + Name n1 = (Name)name1; + Name n2 = (Name)name2; + + return strcmp( n1->name, n2->name ); +} + +static void +names_sort( void ) +{ + qsort( the_names, (size_t)num_names, + sizeof ( the_names[0] ), name_compare ); +} + + +static void +names_dump( FILE* out, + OutputFormat format, + const char* dll_name ) +{ + int nn; + + + switch ( format ) + { + case OUTPUT_WINDOWS_DEF: + if ( dll_name ) + fprintf( out, "LIBRARY %s\n", dll_name ); + + fprintf( out, "DESCRIPTION FreeType 2 DLL\n" ); + fprintf( out, "EXPORTS\n" ); + for ( nn = 0; nn < num_names; nn++ ) + fprintf( out, " %s\n", the_names[nn].name ); + break; + + case OUTPUT_BORLAND_DEF: + if ( dll_name ) + fprintf( out, "LIBRARY %s\n", dll_name ); + + fprintf( out, "DESCRIPTION FreeType 2 DLL\n" ); + fprintf( out, "EXPORTS\n" ); + for ( nn = 0; nn < num_names; nn++ ) + fprintf( out, " _%s\n", the_names[nn].name ); + break; + + case OUTPUT_WATCOM_LBC: + { + /* we must omit the .dll suffix from the library name */ + char temp[512]; + const char* dot; + + + if ( dll_name == NULL ) + { + fprintf( stderr, + "you must provide a DLL name with the -d option!\n" ); + exit( 4 ); + } + + dot = strchr( dll_name, '.' ); + if ( dot != NULL ) + { + int len = dot - dll_name; + + + if ( len > (int)( sizeof ( temp ) - 1 ) ) + len = sizeof ( temp ) - 1; + + memcpy( temp, dll_name, len ); + temp[len] = 0; + + dll_name = (const char*)temp; + } + + for ( nn = 0; nn < num_names; nn++ ) + fprintf( out, "++_%s.%s.%s\n", the_names[nn].name, dll_name, + the_names[nn].name ); + } + break; + + default: /* LIST */ + for ( nn = 0; nn < num_names; nn++ ) + fprintf( out, "%s\n", the_names[nn].name ); + } +} + + + + +/* states of the line parser */ + +typedef enum State_ +{ + STATE_START = 0, /* waiting for FT_EXPORT keyword and return type */ + STATE_TYPE /* type was read, waiting for function name */ + +} State; + +static int +read_header_file( FILE* file, int verbose ) +{ + static char buff[LINEBUFF_SIZE + 1]; + State state = STATE_START; + + while ( !feof( file ) ) + { + char* p; + + if ( !fgets( buff, LINEBUFF_SIZE, file ) ) + break; + + p = buff; + + while ( *p && (*p == ' ' || *p == '\\') ) /* skip leading whitespace */ + p++; + + if ( *p == '\n' || *p == '\r' ) /* skip empty lines */ + continue; + + switch ( state ) + { + case STATE_START: + { + if ( memcmp( p, "FT_EXPORT(", 10 ) != 0 ) + break; + + p += 10; + for (;;) + { + if ( *p == 0 || *p == '\n' || *p == '\r' ) + goto NextLine; + + if ( *p == ')' ) + { + p++; + break; + } + + p++; + } + + state = STATE_TYPE; + + /* sometimes, the name is just after the FT_EXPORT(...), so + * skip whitespace, and fall-through if we find an alphanumeric + * character + */ + while ( *p == ' ' || *p == '\t' ) + p++; + + if ( !isalpha(*p) ) + break; + } + /* fall-through */ + + case STATE_TYPE: + { + char* name = p; + + while ( isalnum(*p) || *p == '_' ) + p++; + + if ( p > name ) + { + if ( verbose ) + fprintf( stderr, ">>> %.*s\n", (int)(p - name), name ); + + names_add( name, p ); + } + + state = STATE_START; + } + break; + + default: + ; + } + + NextLine: + ; + } + + return 0; +} + + +static void +usage( void ) +{ + static const char* const format = + "%s %s: extract FreeType API names from header files\n\n" + "this program is used to extract the list of public FreeType API\n" + "functions. It receives the list of header files as argument and\n" + "generates a sorted list of unique identifiers\n\n" + + "usage: %s header1 [options] [header2 ...]\n\n" + + "options: - : parse the content of stdin, ignore arguments\n" + " -v : verbose mode, output sent to standard error\n" + " -oFILE : write output to FILE instead of standard output\n" + " -dNAME : indicate DLL file name, 'freetype.dll' by default\n" + " -w : output .DEF file for Visual C++ and Mingw\n" + " -wB : output .DEF file for Borland C++\n" + " -wW : output Watcom Linker Response File\n" + "\n"; + + fprintf( stderr, + format, + PROGRAM_NAME, + PROGRAM_VERSION, + PROGRAM_NAME + ); + exit(1); +} + + +int main( int argc, const char* const* argv ) +{ + int from_stdin = 0; + int verbose = 0; + OutputFormat format = OUTPUT_LIST; /* the default */ + FILE* out = stdout; + const char* library_name = NULL; + + if ( argc < 2 ) + usage(); + + /* '-' used as a single argument means read source file from stdin */ + while ( argc > 1 && argv[1][0] == '-' ) + { + const char* arg = argv[1]; + + switch ( arg[1] ) + { + case 'v': + verbose = 1; + break; + + case 'o': + if ( arg[2] == 0 ) + { + if ( argc < 2 ) + usage(); + + arg = argv[2]; + argv++; + argc--; + } + else + arg += 2; + + out = fopen( arg, "wt" ); + if ( out == NULL ) + { + fprintf( stderr, "could not open '%s' for writing\n", argv[2] ); + exit(3); + } + break; + + case 'd': + if ( arg[2] == 0 ) + { + if ( argc < 2 ) + usage(); + + arg = argv[2]; + argv++; + argc--; + } + else + arg += 2; + + library_name = arg; + break; + + case 'w': + format = OUTPUT_WINDOWS_DEF; + switch ( arg[2] ) + { + case 'B': + format = OUTPUT_BORLAND_DEF; + break; + + case 'W': + format = OUTPUT_WATCOM_LBC; + break; + + case 0: + break; + + default: + usage(); + } + break; + + case 0: + from_stdin = 1; + break; + + default: + usage(); + } + + argc--; + argv++; + } + + if ( from_stdin ) + { + read_header_file( stdin, verbose ); + } + else + { + for ( --argc, argv++; argc > 0; argc--, argv++ ) + { + FILE* file = fopen( argv[0], "rb" ); + + if ( file == NULL ) + fprintf( stderr, "unable to open '%s'\n", argv[0] ); + else + { + if ( verbose ) + fprintf( stderr, "opening '%s'\n", argv[0] ); + + read_header_file( file, verbose ); + fclose( file ); + } + } + } + + if ( num_names == 0 ) + panic( "could not find exported functions !!\n" ); + + names_sort(); + names_dump( out, format, library_name ); + + if ( out != stdout ) + fclose( out ); + + return 0; +} diff --git a/src/tools/chktrcmp.py b/src/tools/chktrcmp.py new file mode 100755 index 0000000..d0f342e --- /dev/null +++ b/src/tools/chktrcmp.py @@ -0,0 +1,114 @@ +#!/usr/bin/env python +# +# Check trace components in FreeType 2 source. +# Author: suzuki toshiya, 2009 +# +# This code is explicitly into the public domain. + + +import sys +import os +import re + +SRC_FILE_LIST = [] +USED_COMPONENT = {} +KNOWN_COMPONENT = {} + +SRC_FILE_DIRS = [ "src" ] +TRACE_DEF_FILES = [ "include/freetype/internal/fttrace.h" ] + + +# -------------------------------------------------------------- +# Parse command line options +# + +for i in range( 1, len( sys.argv ) ): + if sys.argv[i].startswith( "--help" ): + print "Usage: %s [option]" % sys.argv[0] + print "Search used-but-defined and defined-but-not-used trace_XXX macros" + print "" + print " --help:" + print " Show this help" + print "" + print " --src-dirs=dir1:dir2:..." + print " Specify the directories of C source files to be checked" + print " Default is %s" % ":".join( SRC_FILE_DIRS ) + print "" + print " --def-files=file1:file2:..." + print " Specify the header files including FT_TRACE_DEF()" + print " Default is %s" % ":".join( TRACE_DEF_FILES ) + print "" + exit(0) + if sys.argv[i].startswith( "--src-dirs=" ): + SRC_FILE_DIRS = sys.argv[i].replace( "--src-dirs=", "", 1 ).split( ":" ) + elif sys.argv[i].startswith( "--def-files=" ): + TRACE_DEF_FILES = sys.argv[i].replace( "--def-files=", "", 1 ).split( ":" ) + + +# -------------------------------------------------------------- +# Scan C source and header files using trace macros. +# + +c_pathname_pat = re.compile( '^.*\.[ch]$', re.IGNORECASE ) +trace_use_pat = re.compile( '^[ \t]*#define[ \t]+FT_COMPONENT[ \t]+trace_' ) + +for d in SRC_FILE_DIRS: + for ( p, dlst, flst ) in os.walk( d ): + for f in flst: + if c_pathname_pat.match( f ) != None: + src_pathname = os.path.join( p, f ) + + line_num = 0 + for src_line in open( src_pathname, 'r' ): + line_num = line_num + 1 + src_line = src_line.strip() + if trace_use_pat.match( src_line ) != None: + component_name = trace_use_pat.sub( '', src_line ) + if component_name in USED_COMPONENT: + USED_COMPONENT[component_name].append( "%s:%d" % ( src_pathname, line_num ) ) + else: + USED_COMPONENT[component_name] = [ "%s:%d" % ( src_pathname, line_num ) ] + + +# -------------------------------------------------------------- +# Scan header file(s) defining trace macros. +# + +trace_def_pat_opn = re.compile( '^.*FT_TRACE_DEF[ \t]*\([ \t]*' ) +trace_def_pat_cls = re.compile( '[ \t\)].*$' ) + +for f in TRACE_DEF_FILES: + line_num = 0 + for hdr_line in open( f, 'r' ): + line_num = line_num + 1 + hdr_line = hdr_line.strip() + if trace_def_pat_opn.match( hdr_line ) != None: + component_name = trace_def_pat_opn.sub( '', hdr_line ) + component_name = trace_def_pat_cls.sub( '', component_name ) + if component_name in KNOWN_COMPONENT: + print "trace component %s is defined twice, see %s and fttrace.h:%d" % \ + ( component_name, KNOWN_COMPONENT[component_name], line_num ) + else: + KNOWN_COMPONENT[component_name] = "%s:%d" % \ + ( os.path.basename( f ), line_num ) + + +# -------------------------------------------------------------- +# Compare the used and defined trace macros. +# + +print "# Trace component used in the implementations but not defined in fttrace.h." +cmpnt = USED_COMPONENT.keys() +cmpnt.sort() +for c in cmpnt: + if c not in KNOWN_COMPONENT: + print "Trace component %s (used in %s) is not defined." % ( c, ", ".join( USED_COMPONENT[c] ) ) + +print "# Trace component is defined but not used in the implementations." +cmpnt = KNOWN_COMPONENT.keys() +cmpnt.sort() +for c in cmpnt: + if c not in USED_COMPONENT: + if c != "any": + print "Trace component %s (defined in %s) is not used." % ( c, KNOWN_COMPONENT[c] ) + diff --git a/src/tools/cordic.py b/src/tools/cordic.py new file mode 100644 index 0000000..3f80c5f --- /dev/null +++ b/src/tools/cordic.py @@ -0,0 +1,79 @@ +# compute arctangent table for CORDIC computations in fttrigon.c +import sys, math + +#units = 64*65536.0 # don't change !! +units = 256 +scale = units/math.pi +shrink = 1.0 +comma = "" + +def calc_val( x ): + global units, shrink + angle = math.atan(x) + shrink = shrink * math.cos(angle) + return angle/math.pi * units + +def print_val( n, x ): + global comma + + lo = int(x) + hi = lo + 1 + alo = math.atan(lo) + ahi = math.atan(hi) + ax = math.atan(2.0**n) + + errlo = abs( alo - ax ) + errhi = abs( ahi - ax ) + + if ( errlo < errhi ): + hi = lo + + sys.stdout.write( comma + repr( int(hi) ) ) + comma = ", " + + +print "" +print "table of arctan( 1/2^n ) for PI = " + repr(units/65536.0) + " units" + +# compute range of "i" +r = [-1] +r = r + range(32) + +for n in r: + + if n >= 0: + x = 1.0/(2.0**n) # tangent value + else: + x = 2.0**(-n) + + angle = math.atan(x) # arctangent + angle2 = angle*scale # arctangent in FT_Angle units + + # determine which integer value for angle gives the best tangent + lo = int(angle2) + hi = lo + 1 + tlo = math.tan(lo/scale) + thi = math.tan(hi/scale) + + errlo = abs( tlo - x ) + errhi = abs( thi - x ) + + angle2 = hi + if errlo < errhi: + angle2 = lo + + if angle2 <= 0: + break + + sys.stdout.write( comma + repr( int(angle2) ) ) + comma = ", " + + shrink = shrink * math.cos( angle2/scale) + + +print +print "shrink factor = " + repr( shrink ) +print "shrink factor 2 = " + repr( shrink * (2.0**32) ) +print "expansion factor = " + repr(1/shrink) +print "" + diff --git a/src/tools/docmaker/.gitignore b/src/tools/docmaker/.gitignore new file mode 100644 index 0000000..0d20b64 --- /dev/null +++ b/src/tools/docmaker/.gitignore @@ -0,0 +1 @@ +*.pyc diff --git a/src/tools/docmaker/content.py b/src/tools/docmaker/content.py new file mode 100644 index 0000000..b398955 --- /dev/null +++ b/src/tools/docmaker/content.py @@ -0,0 +1,584 @@ +# Content (c) 2002, 2004, 2006, 2007, 2008, 2009 +# David Turner <david@freetype.org> +# +# This file contains routines used to parse the content of documentation +# comment blocks and build more structured objects out of them. +# + +from sources import * +from utils import * +import string, re + + +# this regular expression is used to detect code sequences. these +# are simply code fragments embedded in '{' and '}' like in: +# +# { +# x = y + z; +# if ( zookoo == 2 ) +# { +# foobar(); +# } +# } +# +# note that indentation of the starting and ending accolades must be +# exactly the same. the code sequence can contain accolades at greater +# indentation +# +re_code_start = re.compile( r"(\s*){\s*$" ) +re_code_end = re.compile( r"(\s*)}\s*$" ) + + +# this regular expression is used to isolate identifiers from +# other text +# +re_identifier = re.compile( r'(\w*)' ) + + +# we collect macros ending in `_H'; while outputting the object data, we use +# this info together with the object's file location to emit the appropriate +# header file macro and name before the object itself +# +re_header_macro = re.compile( r'^#define\s{1,}(\w{1,}_H)\s{1,}<(.*)>' ) + + +############################################################################# +# +# The DocCode class is used to store source code lines. +# +# 'self.lines' contains a set of source code lines that will be dumped as +# HTML in a <PRE> tag. +# +# The object is filled line by line by the parser; it strips the leading +# "margin" space from each input line before storing it in 'self.lines'. +# +class DocCode: + + def __init__( self, margin, lines ): + self.lines = [] + self.words = None + + # remove margin spaces + for l in lines: + if string.strip( l[:margin] ) == "": + l = l[margin:] + self.lines.append( l ) + + def dump( self, prefix = "", width = 60 ): + lines = self.dump_lines( 0, width ) + for l in lines: + print prefix + l + + def dump_lines( self, margin = 0, width = 60 ): + result = [] + for l in self.lines: + result.append( " " * margin + l ) + return result + + + +############################################################################# +# +# The DocPara class is used to store "normal" text paragraph. +# +# 'self.words' contains the list of words that make up the paragraph +# +class DocPara: + + def __init__( self, lines ): + self.lines = None + self.words = [] + for l in lines: + l = string.strip( l ) + self.words.extend( string.split( l ) ) + + def dump( self, prefix = "", width = 60 ): + lines = self.dump_lines( 0, width ) + for l in lines: + print prefix + l + + def dump_lines( self, margin = 0, width = 60 ): + cur = "" # current line + col = 0 # current width + result = [] + + for word in self.words: + ln = len( word ) + if col > 0: + ln = ln + 1 + + if col + ln > width: + result.append( " " * margin + cur ) + cur = word + col = len( word ) + else: + if col > 0: + cur = cur + " " + cur = cur + word + col = col + ln + + if col > 0: + result.append( " " * margin + cur ) + + return result + + + +############################################################################# +# +# The DocField class is used to store a list containing either DocPara or +# DocCode objects. Each DocField also has an optional "name" which is used +# when the object corresponds to a field or value definition +# +class DocField: + + def __init__( self, name, lines ): + self.name = name # can be None for normal paragraphs/sources + self.items = [] # list of items + + mode_none = 0 # start parsing mode + mode_code = 1 # parsing code sequences + mode_para = 3 # parsing normal paragraph + + margin = -1 # current code sequence indentation + cur_lines = [] + + # now analyze the markup lines to see if they contain paragraphs, + # code sequences or fields definitions + # + start = 0 + mode = mode_none + + for l in lines: + # are we parsing a code sequence ? + if mode == mode_code: + m = re_code_end.match( l ) + if m and len( m.group( 1 ) ) <= margin: + # that's it, we finished the code sequence + code = DocCode( 0, cur_lines ) + self.items.append( code ) + margin = -1 + cur_lines = [] + mode = mode_none + else: + # nope, continue the code sequence + cur_lines.append( l[margin:] ) + else: + # start of code sequence ? + m = re_code_start.match( l ) + if m: + # save current lines + if cur_lines: + para = DocPara( cur_lines ) + self.items.append( para ) + cur_lines = [] + + # switch to code extraction mode + margin = len( m.group( 1 ) ) + mode = mode_code + else: + if not string.split( l ) and cur_lines: + # if the line is empty, we end the current paragraph, + # if any + para = DocPara( cur_lines ) + self.items.append( para ) + cur_lines = [] + else: + # otherwise, simply add the line to the current + # paragraph + cur_lines.append( l ) + + if mode == mode_code: + # unexpected end of code sequence + code = DocCode( margin, cur_lines ) + self.items.append( code ) + elif cur_lines: + para = DocPara( cur_lines ) + self.items.append( para ) + + def dump( self, prefix = "" ): + if self.field: + print prefix + self.field + " ::" + prefix = prefix + "----" + + first = 1 + for p in self.items: + if not first: + print "" + p.dump( prefix ) + first = 0 + + def dump_lines( self, margin = 0, width = 60 ): + result = [] + nl = None + + for p in self.items: + if nl: + result.append( "" ) + + result.extend( p.dump_lines( margin, width ) ) + nl = 1 + + return result + + + +# this regular expression is used to detect field definitions +# +re_field = re.compile( r"\s*(\w*|\w(\w|\.)*\w)\s*::" ) + + + +class DocMarkup: + + def __init__( self, tag, lines ): + self.tag = string.lower( tag ) + self.fields = [] + + cur_lines = [] + field = None + mode = 0 + + for l in lines: + m = re_field.match( l ) + if m: + # we detected the start of a new field definition + + # first, save the current one + if cur_lines: + f = DocField( field, cur_lines ) + self.fields.append( f ) + cur_lines = [] + field = None + + field = m.group( 1 ) # record field name + ln = len( m.group( 0 ) ) + l = " " * ln + l[ln:] + cur_lines = [l] + else: + cur_lines.append( l ) + + if field or cur_lines: + f = DocField( field, cur_lines ) + self.fields.append( f ) + + def get_name( self ): + try: + return self.fields[0].items[0].words[0] + except: + return None + + def get_start( self ): + try: + result = "" + for word in self.fields[0].items[0].words: + result = result + " " + word + return result[1:] + except: + return "ERROR" + + def dump( self, margin ): + print " " * margin + "<" + self.tag + ">" + for f in self.fields: + f.dump( " " ) + print " " * margin + "</" + self.tag + ">" + + + +class DocChapter: + + def __init__( self, block ): + self.block = block + self.sections = [] + if block: + self.name = block.name + self.title = block.get_markup_words( "title" ) + self.order = block.get_markup_words( "sections" ) + else: + self.name = "Other" + self.title = string.split( "Miscellaneous" ) + self.order = [] + + + +class DocSection: + + def __init__( self, name = "Other" ): + self.name = name + self.blocks = {} + self.block_names = [] # ordered block names in section + self.defs = [] + self.abstract = "" + self.description = "" + self.order = [] + self.title = "ERROR" + self.chapter = None + + def add_def( self, block ): + self.defs.append( block ) + + def add_block( self, block ): + self.block_names.append( block.name ) + self.blocks[block.name] = block + + def process( self ): + # look up one block that contains a valid section description + for block in self.defs: + title = block.get_markup_text( "title" ) + if title: + self.title = title + self.abstract = block.get_markup_words( "abstract" ) + self.description = block.get_markup_items( "description" ) + self.order = block.get_markup_words( "order" ) + return + + def reorder( self ): + self.block_names = sort_order_list( self.block_names, self.order ) + + + +class ContentProcessor: + + def __init__( self ): + """initialize a block content processor""" + self.reset() + + self.sections = {} # dictionary of documentation sections + self.section = None # current documentation section + + self.chapters = [] # list of chapters + + self.headers = {} # dictionary of header macros + + def set_section( self, section_name ): + """set current section during parsing""" + if not self.sections.has_key( section_name ): + section = DocSection( section_name ) + self.sections[section_name] = section + self.section = section + else: + self.section = self.sections[section_name] + + def add_chapter( self, block ): + chapter = DocChapter( block ) + self.chapters.append( chapter ) + + + def reset( self ): + """reset the content processor for a new block""" + self.markups = [] + self.markup = None + self.markup_lines = [] + + def add_markup( self ): + """add a new markup section""" + if self.markup and self.markup_lines: + + # get rid of last line of markup if it's empty + marks = self.markup_lines + if len( marks ) > 0 and not string.strip( marks[-1] ): + self.markup_lines = marks[:-1] + + m = DocMarkup( self.markup, self.markup_lines ) + + self.markups.append( m ) + + self.markup = None + self.markup_lines = [] + + def process_content( self, content ): + """process a block content and return a list of DocMarkup objects + corresponding to it""" + markup = None + markup_lines = [] + first = 1 + + for line in content: + found = None + for t in re_markup_tags: + m = t.match( line ) + if m: + found = string.lower( m.group( 1 ) ) + prefix = len( m.group( 0 ) ) + line = " " * prefix + line[prefix:] # remove markup from line + break + + # is it the start of a new markup section ? + if found: + first = 0 + self.add_markup() # add current markup content + self.markup = found + if len( string.strip( line ) ) > 0: + self.markup_lines.append( line ) + elif first == 0: + self.markup_lines.append( line ) + + self.add_markup() + + return self.markups + + def parse_sources( self, source_processor ): + blocks = source_processor.blocks + count = len( blocks ) + + for n in range( count ): + source = blocks[n] + if source.content: + # this is a documentation comment, we need to catch + # all following normal blocks in the "follow" list + # + follow = [] + m = n + 1 + while m < count and not blocks[m].content: + follow.append( blocks[m] ) + m = m + 1 + + doc_block = DocBlock( source, follow, self ) + + def finish( self ): + # process all sections to extract their abstract, description + # and ordered list of items + # + for sec in self.sections.values(): + sec.process() + + # process chapters to check that all sections are correctly + # listed there + for chap in self.chapters: + for sec in chap.order: + if self.sections.has_key( sec ): + section = self.sections[sec] + section.chapter = chap + section.reorder() + chap.sections.append( section ) + else: + sys.stderr.write( "WARNING: chapter '" + \ + chap.name + "' in " + chap.block.location() + \ + " lists unknown section '" + sec + "'\n" ) + + # check that all sections are in a chapter + # + others = [] + for sec in self.sections.values(): + if not sec.chapter: + others.append( sec ) + + # create a new special chapter for all remaining sections + # when necessary + # + if others: + chap = DocChapter( None ) + chap.sections = others + self.chapters.append( chap ) + + + +class DocBlock: + + def __init__( self, source, follow, processor ): + processor.reset() + + self.source = source + self.code = [] + self.type = "ERRTYPE" + self.name = "ERRNAME" + self.section = processor.section + self.markups = processor.process_content( source.content ) + + # compute block type from first markup tag + try: + self.type = self.markups[0].tag + except: + pass + + # compute block name from first markup paragraph + try: + markup = self.markups[0] + para = markup.fields[0].items[0] + name = para.words[0] + m = re_identifier.match( name ) + if m: + name = m.group( 1 ) + self.name = name + except: + pass + + if self.type == "section": + # detect new section starts + processor.set_section( self.name ) + processor.section.add_def( self ) + elif self.type == "chapter": + # detect new chapter + processor.add_chapter( self ) + else: + processor.section.add_block( self ) + + # now, compute the source lines relevant to this documentation + # block. We keep normal comments in for obvious reasons (??) + source = [] + for b in follow: + if b.format: + break + for l in b.lines: + # collect header macro definitions + m = re_header_macro.match( l ) + if m: + processor.headers[m.group( 2 )] = m.group( 1 ); + + # we use "/* */" as a separator + if re_source_sep.match( l ): + break + source.append( l ) + + # now strip the leading and trailing empty lines from the sources + start = 0 + end = len( source ) - 1 + + while start < end and not string.strip( source[start] ): + start = start + 1 + + while start < end and not string.strip( source[end] ): + end = end - 1 + + if start == end and not string.strip( source[start] ): + self.code = [] + else: + self.code = source[start:end + 1] + + def location( self ): + return self.source.location() + + def get_markup( self, tag_name ): + """return the DocMarkup corresponding to a given tag in a block""" + for m in self.markups: + if m.tag == string.lower( tag_name ): + return m + return None + + def get_markup_name( self, tag_name ): + """return the name of a given primary markup in a block""" + try: + m = self.get_markup( tag_name ) + return m.get_name() + except: + return None + + def get_markup_words( self, tag_name ): + try: + m = self.get_markup( tag_name ) + return m.fields[0].items[0].words + except: + return [] + + def get_markup_text( self, tag_name ): + result = self.get_markup_words( tag_name ) + return string.join( result ) + + def get_markup_items( self, tag_name ): + try: + m = self.get_markup( tag_name ) + return m.fields[0].items + except: + return None + +# eof diff --git a/src/tools/docmaker/docbeauty.py b/src/tools/docmaker/docbeauty.py new file mode 100644 index 0000000..3ddf4a9 --- /dev/null +++ b/src/tools/docmaker/docbeauty.py @@ -0,0 +1,113 @@ +#!/usr/bin/env python +# +# DocBeauty (c) 2003, 2004, 2008 David Turner <david@freetype.org> +# +# This program is used to beautify the documentation comments used +# in the FreeType 2 public headers. +# + +from sources import * +from content import * +from utils import * + +import utils + +import sys, os, time, string, getopt + + +content_processor = ContentProcessor() + + +def beautify_block( block ): + if block.content: + content_processor.reset() + + markups = content_processor.process_content( block.content ) + text = [] + first = 1 + + for markup in markups: + text.extend( markup.beautify( first ) ) + first = 0 + + # now beautify the documentation "borders" themselves + lines = [" /*************************************************************************"] + for l in text: + lines.append( " *" + l ) + lines.append( " */" ) + + block.lines = lines + + +def usage(): + print "\nDocBeauty 0.1 Usage information\n" + print " docbeauty [options] file1 [file2 ...]\n" + print "using the following options:\n" + print " -h : print this page" + print " -b : backup original files with the 'orig' extension" + print "" + print " --backup : same as -b" + + +def main( argv ): + """main program loop""" + + global output_dir + + try: + opts, args = getopt.getopt( sys.argv[1:], \ + "hb", \ + ["help", "backup"] ) + except getopt.GetoptError: + usage() + sys.exit( 2 ) + + if args == []: + usage() + sys.exit( 1 ) + + # process options + # + output_dir = None + do_backup = None + + for opt in opts: + if opt[0] in ( "-h", "--help" ): + usage() + sys.exit( 0 ) + + if opt[0] in ( "-b", "--backup" ): + do_backup = 1 + + # create context and processor + source_processor = SourceProcessor() + + # retrieve the list of files to process + file_list = make_file_list( args ) + for filename in file_list: + source_processor.parse_file( filename ) + + for block in source_processor.blocks: + beautify_block( block ) + + new_name = filename + ".new" + ok = None + + try: + file = open( new_name, "wt" ) + for block in source_processor.blocks: + for line in block.lines: + file.write( line ) + file.write( "\n" ) + file.close() + except: + ok = 0 + + +# if called from the command line +# +if __name__ == '__main__': + main( sys.argv ) + + +# eof diff --git a/src/tools/docmaker/docmaker.py b/src/tools/docmaker/docmaker.py new file mode 100644 index 0000000..1d9de9f --- /dev/null +++ b/src/tools/docmaker/docmaker.py @@ -0,0 +1,106 @@ +#!/usr/bin/env python +# +# DocMaker (c) 2002, 2004, 2008 David Turner <david@freetype.org> +# +# This program is a re-write of the original DocMaker took used +# to generate the API Reference of the FreeType font engine +# by converting in-source comments into structured HTML. +# +# This new version is capable of outputting XML data, as well +# as accepts more liberal formatting options. +# +# It also uses regular expression matching and substitution +# to speed things significantly. +# + +from sources import * +from content import * +from utils import * +from formatter import * +from tohtml import * + +import utils + +import sys, os, time, string, glob, getopt + + +def usage(): + print "\nDocMaker Usage information\n" + print " docmaker [options] file1 [file2 ...]\n" + print "using the following options:\n" + print " -h : print this page" + print " -t : set project title, as in '-t \"My Project\"'" + print " -o : set output directory, as in '-o mydir'" + print " -p : set documentation prefix, as in '-p ft2'" + print "" + print " --title : same as -t, as in '--title=\"My Project\"'" + print " --output : same as -o, as in '--output=mydir'" + print " --prefix : same as -p, as in '--prefix=ft2'" + + +def main( argv ): + """main program loop""" + + global output_dir + + try: + opts, args = getopt.getopt( sys.argv[1:], \ + "ht:o:p:", \ + ["help", "title=", "output=", "prefix="] ) + except getopt.GetoptError: + usage() + sys.exit( 2 ) + + if args == []: + usage() + sys.exit( 1 ) + + # process options + # + project_title = "Project" + project_prefix = None + output_dir = None + + for opt in opts: + if opt[0] in ( "-h", "--help" ): + usage() + sys.exit( 0 ) + + if opt[0] in ( "-t", "--title" ): + project_title = opt[1] + + if opt[0] in ( "-o", "--output" ): + utils.output_dir = opt[1] + + if opt[0] in ( "-p", "--prefix" ): + project_prefix = opt[1] + + check_output() + + # create context and processor + source_processor = SourceProcessor() + content_processor = ContentProcessor() + + # retrieve the list of files to process + file_list = make_file_list( args ) + for filename in file_list: + source_processor.parse_file( filename ) + content_processor.parse_sources( source_processor ) + + # process sections + content_processor.finish() + + formatter = HtmlFormatter( content_processor, project_title, project_prefix ) + + formatter.toc_dump() + formatter.index_dump() + formatter.section_dump_all() + + +# if called from the command line +# +if __name__ == '__main__': + main( sys.argv ) + + +# eof diff --git a/src/tools/docmaker/formatter.py b/src/tools/docmaker/formatter.py new file mode 100644 index 0000000..f62ce67 --- /dev/null +++ b/src/tools/docmaker/formatter.py @@ -0,0 +1,188 @@ +# Formatter (c) 2002, 2004, 2007, 2008 David Turner <david@freetype.org> +# + +from sources import * +from content import * +from utils import * + +# This is the base Formatter class. Its purpose is to convert +# a content processor's data into specific documents (i.e., table of +# contents, global index, and individual API reference indices). +# +# You need to sub-class it to output anything sensible. For example, +# the file tohtml.py contains the definition of the HtmlFormatter sub-class +# used to output -- you guessed it -- HTML. +# + +class Formatter: + + def __init__( self, processor ): + self.processor = processor + self.identifiers = {} + self.chapters = processor.chapters + self.sections = processor.sections.values() + self.block_index = [] + + # store all blocks in a dictionary + self.blocks = [] + for section in self.sections: + for block in section.blocks.values(): + self.add_identifier( block.name, block ) + + # add enumeration values to the index, since this is useful + for markup in block.markups: + if markup.tag == 'values': + for field in markup.fields: + self.add_identifier( field.name, block ) + + self.block_index = self.identifiers.keys() + self.block_index.sort( index_sort ) + + def add_identifier( self, name, block ): + if self.identifiers.has_key( name ): + # duplicate name! + sys.stderr.write( \ + "WARNING: duplicate definition for '" + name + "' in " + \ + block.location() + ", previous definition in " + \ + self.identifiers[name].location() + "\n" ) + else: + self.identifiers[name] = block + + # + # Formatting the table of contents + # + def toc_enter( self ): + pass + + def toc_chapter_enter( self, chapter ): + pass + + def toc_section_enter( self, section ): + pass + + def toc_section_exit( self, section ): + pass + + def toc_chapter_exit( self, chapter ): + pass + + def toc_index( self, index_filename ): + pass + + def toc_exit( self ): + pass + + def toc_dump( self, toc_filename = None, index_filename = None ): + output = None + if toc_filename: + output = open_output( toc_filename ) + + self.toc_enter() + + for chap in self.processor.chapters: + + self.toc_chapter_enter( chap ) + + for section in chap.sections: + self.toc_section_enter( section ) + self.toc_section_exit( section ) + + self.toc_chapter_exit( chap ) + + self.toc_index( index_filename ) + + self.toc_exit() + + if output: + close_output( output ) + + # + # Formatting the index + # + def index_enter( self ): + pass + + def index_name_enter( self, name ): + pass + + def index_name_exit( self, name ): + pass + + def index_exit( self ): + pass + + def index_dump( self, index_filename = None ): + output = None + if index_filename: + output = open_output( index_filename ) + + self.index_enter() + + for name in self.block_index: + self.index_name_enter( name ) + self.index_name_exit( name ) + + self.index_exit() + + if output: + close_output( output ) + + # + # Formatting a section + # + def section_enter( self, section ): + pass + + def block_enter( self, block ): + pass + + def markup_enter( self, markup, block = None ): + pass + + def field_enter( self, field, markup = None, block = None ): + pass + + def field_exit( self, field, markup = None, block = None ): + pass + + def markup_exit( self, markup, block = None ): + pass + + def block_exit( self, block ): + pass + + def section_exit( self, section ): + pass + + def section_dump( self, section, section_filename = None ): + output = None + if section_filename: + output = open_output( section_filename ) + + self.section_enter( section ) + + for name in section.block_names: + block = self.identifiers[name] + self.block_enter( block ) + + for markup in block.markups[1:]: # always ignore first markup! + self.markup_enter( markup, block ) + + for field in markup.fields: + self.field_enter( field, markup, block ) + self.field_exit( field, markup, block ) + + self.markup_exit( markup, block ) + + self.block_exit( block ) + + self.section_exit( section ) + + if output: + close_output( output ) + + def section_dump_all( self ): + for section in self.sections: + self.section_dump( section ) + +# eof diff --git a/src/tools/docmaker/sources.py b/src/tools/docmaker/sources.py new file mode 100644 index 0000000..7b68c07 --- /dev/null +++ b/src/tools/docmaker/sources.py @@ -0,0 +1,347 @@ +# Sources (c) 2002, 2003, 2004, 2006, 2007, 2008, 2009 +# David Turner <david@freetype.org> +# +# +# this file contains definitions of classes needed to decompose +# C sources files into a series of multi-line "blocks". There are +# two kinds of blocks: +# +# - normal blocks, which contain source code or ordinary comments +# +# - documentation blocks, which have restricted formatting, and +# whose text always start with a documentation markup tag like +# "<Function>", "<Type>", etc.. +# +# the routines used to process the content of documentation blocks +# are not contained here, but in "content.py" +# +# the classes and methods found here only deal with text parsing +# and basic documentation block extraction +# + +import fileinput, re, sys, os, string + + + +################################################################ +## +## BLOCK FORMAT PATTERN +## +## A simple class containing compiled regular expressions used +## to detect potential documentation format block comments within +## C source code +## +## note that the 'column' pattern must contain a group that will +## be used to "unbox" the content of documentation comment blocks +## +class SourceBlockFormat: + + def __init__( self, id, start, column, end ): + """create a block pattern, used to recognize special documentation blocks""" + self.id = id + self.start = re.compile( start, re.VERBOSE ) + self.column = re.compile( column, re.VERBOSE ) + self.end = re.compile( end, re.VERBOSE ) + + + +# +# format 1 documentation comment blocks look like the following: +# +# /************************************/ +# /* */ +# /* */ +# /* */ +# /************************************/ +# +# we define a few regular expressions here to detect them +# + +start = r''' + \s* # any number of whitespace + /\*{2,}/ # followed by '/' and at least two asterisks then '/' + \s*$ # probably followed by whitespace +''' + +column = r''' + \s* # any number of whitespace + /\*{1} # followed by '/' and precisely one asterisk + ([^*].*) # followed by anything (group 1) + \*{1}/ # followed by one asterisk and a '/' + \s*$ # probably followed by whitespace +''' + +re_source_block_format1 = SourceBlockFormat( 1, start, column, start ) + + +# +# format 2 documentation comment blocks look like the following: +# +# /************************************ (at least 2 asterisks) +# * +# * +# * +# * +# **/ (1 or more asterisks at the end) +# +# we define a few regular expressions here to detect them +# +start = r''' + \s* # any number of whitespace + /\*{2,} # followed by '/' and at least two asterisks + \s*$ # probably followed by whitespace +''' + +column = r''' + \s* # any number of whitespace + \*{1}(?!/) # followed by precisely one asterisk not followed by `/' + (.*) # then anything (group1) +''' + +end = r''' + \s* # any number of whitespace + \*+/ # followed by at least one asterisk, then '/' +''' + +re_source_block_format2 = SourceBlockFormat( 2, start, column, end ) + + +# +# the list of supported documentation block formats, we could add new ones +# relatively easily +# +re_source_block_formats = [re_source_block_format1, re_source_block_format2] + + +# +# the following regular expressions corresponds to markup tags +# within the documentation comment blocks. they're equivalent +# despite their different syntax +# +# notice how each markup tag _must_ begin a new line +# +re_markup_tag1 = re.compile( r'''\s*<(\w*)>''' ) # <xxxx> format +re_markup_tag2 = re.compile( r'''\s*@(\w*):''' ) # @xxxx: format + +# +# the list of supported markup tags, we could add new ones relatively +# easily +# +re_markup_tags = [re_markup_tag1, re_markup_tag2] + +# +# used to detect a cross-reference, after markup tags have been stripped +# +re_crossref = re.compile( r'@(\w*)(.*)' ) + +# +# used to detect italic and bold styles in paragraph text +# +re_italic = re.compile( r"_(\w(\w|')*)_(.*)" ) # _italic_ +re_bold = re.compile( r"\*(\w(\w|')*)\*(.*)" ) # *bold* + +# +# used to detect the end of commented source lines +# +re_source_sep = re.compile( r'\s*/\*\s*\*/' ) + +# +# used to perform cross-reference within source output +# +re_source_crossref = re.compile( r'(\W*)(\w*)' ) + +# +# a list of reserved source keywords +# +re_source_keywords = re.compile( '''\\b ( typedef | + struct | + enum | + union | + const | + char | + int | + short | + long | + void | + signed | + unsigned | + \#include | + \#define | + \#undef | + \#if | + \#ifdef | + \#ifndef | + \#else | + \#endif ) \\b''', re.VERBOSE ) + + +################################################################ +## +## SOURCE BLOCK CLASS +## +## A SourceProcessor is in charge of reading a C source file +## and decomposing it into a series of different "SourceBlocks". +## each one of these blocks can be made of the following data: +## +## - A documentation comment block that starts with "/**" and +## whose exact format will be discussed later +## +## - normal sources lines, including comments +## +## the important fields in a text block are the following ones: +## +## self.lines : a list of text lines for the corresponding block +## +## self.content : for documentation comment blocks only, this is the +## block content that has been "unboxed" from its +## decoration. This is None for all other blocks +## (i.e. sources or ordinary comments with no starting +## markup tag) +## +class SourceBlock: + + def __init__( self, processor, filename, lineno, lines ): + self.processor = processor + self.filename = filename + self.lineno = lineno + self.lines = lines[:] + self.format = processor.format + self.content = [] + + if self.format == None: + return + + words = [] + + # extract comment lines + lines = [] + + for line0 in self.lines: + m = self.format.column.match( line0 ) + if m: + lines.append( m.group( 1 ) ) + + # now, look for a markup tag + for l in lines: + l = string.strip( l ) + if len( l ) > 0: + for tag in re_markup_tags: + if tag.match( l ): + self.content = lines + return + + def location( self ): + return "(" + self.filename + ":" + repr( self.lineno ) + ")" + + # debugging only - not used in normal operations + def dump( self ): + if self.content: + print "{{{content start---" + for l in self.content: + print l + print "---content end}}}" + return + + fmt = "" + if self.format: + fmt = repr( self.format.id ) + " " + + for line in self.lines: + print line + + + +################################################################ +## +## SOURCE PROCESSOR CLASS +## +## The SourceProcessor is in charge of reading a C source file +## and decomposing it into a series of different "SourceBlock" +## objects. +## +## each one of these blocks can be made of the following data: +## +## - A documentation comment block that starts with "/**" and +## whose exact format will be discussed later +## +## - normal sources lines, include comments +## +## +class SourceProcessor: + + def __init__( self ): + """initialize a source processor""" + self.blocks = [] + self.filename = None + self.format = None + self.lines = [] + + def reset( self ): + """reset a block processor, clean all its blocks""" + self.blocks = [] + self.format = None + + def parse_file( self, filename ): + """parse a C source file, and add its blocks to the processor's list""" + self.reset() + + self.filename = filename + + fileinput.close() + self.format = None + self.lineno = 0 + self.lines = [] + + for line in fileinput.input( filename ): + # strip trailing newlines, important on Windows machines! + if line[-1] == '\012': + line = line[0:-1] + + if self.format == None: + self.process_normal_line( line ) + else: + if self.format.end.match( line ): + # that's a normal block end, add it to 'lines' and + # create a new block + self.lines.append( line ) + self.add_block_lines() + elif self.format.column.match( line ): + # that's a normal column line, add it to 'lines' + self.lines.append( line ) + else: + # humm.. this is an unexpected block end, + # create a new block, but don't process the line + self.add_block_lines() + + # we need to process the line again + self.process_normal_line( line ) + + # record the last lines + self.add_block_lines() + + def process_normal_line( self, line ): + """process a normal line and check whether it is the start of a new block""" + for f in re_source_block_formats: + if f.start.match( line ): + self.add_block_lines() + self.format = f + self.lineno = fileinput.filelineno() + + self.lines.append( line ) + + def add_block_lines( self ): + """add the current accumulated lines and create a new block""" + if self.lines != []: + block = SourceBlock( self, self.filename, self.lineno, self.lines ) + + self.blocks.append( block ) + self.format = None + self.lines = [] + + # debugging only, not used in normal operations + def dump( self ): + """print all blocks in a processor""" + for b in self.blocks: + b.dump() + +# eof diff --git a/src/tools/docmaker/tohtml.py b/src/tools/docmaker/tohtml.py new file mode 100644 index 0000000..fffa120 --- /dev/null +++ b/src/tools/docmaker/tohtml.py @@ -0,0 +1,593 @@ +# ToHTML (c) 2002, 2003, 2005, 2006, 2007, 2008 +# David Turner <david@freetype.org> + +from sources import * +from content import * +from formatter import * + +import time + + +# The following defines the HTML header used by all generated pages. +html_header_1 = """\ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" +"http://www.w3.org/TR/html4/loose.dtd"> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<title>\ +""" + +html_header_2 = """\ + API Reference + + + +""" + +html_header_3 = """ + + + +
      [
      [Index][TOC]
      +

      \ +""" + +html_header_5t = """\ +">Index] + +

      \ +""" + +html_header_6 = """\ + API Reference

      +""" + + +# The HTML footer used by all generated pages. +html_footer = """\ + +\ +""" + +# The header and footer used for each section. +section_title_header = "

      " +section_title_footer = "

      " + +# The header and footer used for code segments. +code_header = '
      '
      +code_footer = '
      ' + +# Paragraph header and footer. +para_header = "

      " +para_footer = "

      " + +# Block header and footer. +block_header = '
      ' +block_footer_start = """\ +
      +
      + + +
      [Index][TOC]
      +""" + +# Description header/footer. +description_header = '
      ' +description_footer = "

      " + +# Marker header/inter/footer combination. +marker_header = '
      ' +marker_inter = "
      " +marker_footer = "
      " + +# Header location header/footer. +header_location_header = '
      ' +header_location_footer = "

      " + +# Source code extracts header/footer. +source_header = '
      \n'
      +source_footer = "\n

      " + +# Chapter header/inter/footer. +chapter_header = '

      ' +chapter_inter = '

      • ' +chapter_footer = '
      ' + +# Index footer. +index_footer_start = """\ +
      + +
      [TOC]
      +""" + +# TOC footer. +toc_footer_start = """\ +
      + + +
      [Index]
      +""" + + +# source language keyword coloration/styling +keyword_prefix = '' +keyword_suffix = '' + +section_synopsis_header = '

      Synopsis

      ' +section_synopsis_footer = '' + + +# Translate a single line of source to HTML. This will convert +# a "<" into "<.", ">" into ">.", etc. +def html_quote( line ): + result = string.replace( line, "&", "&" ) + result = string.replace( result, "<", "<" ) + result = string.replace( result, ">", ">" ) + return result + + +# same as 'html_quote', but ignores left and right brackets +def html_quote0( line ): + return string.replace( line, "&", "&" ) + + +def dump_html_code( lines, prefix = "" ): + # clean the last empty lines + l = len( self.lines ) + while l > 0 and string.strip( self.lines[l - 1] ) == "": + l = l - 1 + + # The code footer should be directly appended to the last code + # line to avoid an additional blank line. + print prefix + code_header, + for line in self.lines[0 : l + 1]: + print '\n' + prefix + html_quote( line ), + print prefix + code_footer, + + + +class HtmlFormatter( Formatter ): + + def __init__( self, processor, project_title, file_prefix ): + Formatter.__init__( self, processor ) + + global html_header_1, html_header_2, html_header_3 + global html_header_4, html_header_5, html_footer + + if file_prefix: + file_prefix = file_prefix + "-" + else: + file_prefix = "" + + self.headers = processor.headers + self.project_title = project_title + self.file_prefix = file_prefix + self.html_header = html_header_1 + project_title + \ + html_header_2 + \ + html_header_3 + file_prefix + "index.html" + \ + html_header_4 + file_prefix + "toc.html" + \ + html_header_5 + project_title + \ + html_header_6 + + self.html_index_header = html_header_1 + project_title + \ + html_header_2 + \ + html_header_3i + file_prefix + "toc.html" + \ + html_header_5 + project_title + \ + html_header_6 + + self.html_toc_header = html_header_1 + project_title + \ + html_header_2 + \ + html_header_3 + file_prefix + "index.html" + \ + html_header_5t + project_title + \ + html_header_6 + + self.html_footer = "
      generated on " + \ + time.asctime( time.localtime( time.time() ) ) + \ + "
      " + html_footer + + self.columns = 3 + + def make_section_url( self, section ): + return self.file_prefix + section.name + ".html" + + def make_block_url( self, block ): + return self.make_section_url( block.section ) + "#" + block.name + + def make_html_words( self, words ): + """ convert a series of simple words into some HTML text """ + line = "" + if words: + line = html_quote( words[0] ) + for w in words[1:]: + line = line + " " + html_quote( w ) + + return line + + def make_html_word( self, word ): + """analyze a simple word to detect cross-references and styling""" + # look for cross-references + m = re_crossref.match( word ) + if m: + try: + name = m.group( 1 ) + rest = m.group( 2 ) + block = self.identifiers[name] + url = self.make_block_url( block ) + return '' + name + '' + rest + except: + # we detected a cross-reference to an unknown item + sys.stderr.write( \ + "WARNING: undefined cross reference '" + name + "'.\n" ) + return '?' + name + '?' + rest + + # look for italics and bolds + m = re_italic.match( word ) + if m: + name = m.group( 1 ) + rest = m.group( 3 ) + return '' + name + '' + rest + + m = re_bold.match( word ) + if m: + name = m.group( 1 ) + rest = m.group( 3 ) + return '' + name + '' + rest + + return html_quote( word ) + + def make_html_para( self, words ): + """ convert words of a paragraph into tagged HTML text, handle xrefs """ + line = "" + if words: + line = self.make_html_word( words[0] ) + for word in words[1:]: + line = line + " " + self.make_html_word( word ) + # convert `...' quotations into real left and right single quotes + line = re.sub( r"(^|\W)`(.*?)'(\W|$)", \ + r'\1‘\2’\3', \ + line ) + # convert tilde into non-breakable space + line = string.replace( line, "~", " " ) + + return para_header + line + para_footer + + def make_html_code( self, lines ): + """ convert a code sequence to HTML """ + line = code_header + '\n' + for l in lines: + line = line + html_quote( l ) + '\n' + + return line + code_footer + + def make_html_items( self, items ): + """ convert a field's content into some valid HTML """ + lines = [] + for item in items: + if item.lines: + lines.append( self.make_html_code( item.lines ) ) + else: + lines.append( self.make_html_para( item.words ) ) + + return string.join( lines, '\n' ) + + def print_html_items( self, items ): + print self.make_html_items( items ) + + def print_html_field( self, field ): + if field.name: + print "
      " + field.name + "" + + print self.make_html_items( field.items ) + + if field.name: + print "
      " + + def html_source_quote( self, line, block_name = None ): + result = "" + while line: + m = re_source_crossref.match( line ) + if m: + name = m.group( 2 ) + prefix = html_quote( m.group( 1 ) ) + length = len( m.group( 0 ) ) + + if name == block_name: + # this is the current block name, if any + result = result + prefix + '' + name + '' + elif re_source_keywords.match( name ): + # this is a C keyword + result = result + prefix + keyword_prefix + name + keyword_suffix + elif self.identifiers.has_key( name ): + # this is a known identifier + block = self.identifiers[name] + result = result + prefix + '' + name + '' + else: + result = result + html_quote( line[:length] ) + + line = line[length:] + else: + result = result + html_quote( line ) + line = [] + + return result + + def print_html_field_list( self, fields ): + print "

      " + print "" + for field in fields: + if len( field.name ) > 22: + print "" + print "" + print "
      " + field.name + "
      " + else: + print "
      " + field.name + "" + + self.print_html_items( field.items ) + print "
      " + + def print_html_markup( self, markup ): + table_fields = [] + for field in markup.fields: + if field.name: + # we begin a new series of field or value definitions, we + # will record them in the 'table_fields' list before outputting + # all of them as a single table + # + table_fields.append( field ) + else: + if table_fields: + self.print_html_field_list( table_fields ) + table_fields = [] + + self.print_html_items( field.items ) + + if table_fields: + self.print_html_field_list( table_fields ) + + # + # Formatting the index + # + def index_enter( self ): + print self.html_index_header + self.index_items = {} + + def index_name_enter( self, name ): + block = self.identifiers[name] + url = self.make_block_url( block ) + self.index_items[name] = url + + def index_exit( self ): + # block_index already contains the sorted list of index names + count = len( self.block_index ) + rows = ( count + self.columns - 1 ) / self.columns + + print "" + for r in range( rows ): + line = "" + for c in range( self.columns ): + i = r + c * rows + if i < count: + bname = self.block_index[r + c * rows] + url = self.index_items[bname] + line = line + '' + else: + line = line + '' + line = line + "" + print line + + print "
      ' + bname + '
      " + + print index_footer_start + \ + self.file_prefix + "toc.html" + \ + index_footer_end + + print self.html_footer + + self.index_items = {} + + def index_dump( self, index_filename = None ): + if index_filename == None: + index_filename = self.file_prefix + "index.html" + + Formatter.index_dump( self, index_filename ) + + # + # Formatting the table of content + # + def toc_enter( self ): + print self.html_toc_header + print "

      Table of Contents

      " + + def toc_chapter_enter( self, chapter ): + print chapter_header + string.join( chapter.title ) + chapter_inter + print "" + + def toc_section_enter( self, section ): + print '" + + def toc_chapter_exit( self, chapter ): + print "
      ' + print '' + \ + section.title + '' + + print self.make_html_para( section.abstract ) + + def toc_section_exit( self, section ): + print "
      " + print chapter_footer + + def toc_index( self, index_filename ): + print chapter_header + \ + 'Global Index' + \ + chapter_inter + chapter_footer + + def toc_exit( self ): + print toc_footer_start + \ + self.file_prefix + "index.html" + \ + toc_footer_end + + print self.html_footer + + def toc_dump( self, toc_filename = None, index_filename = None ): + if toc_filename == None: + toc_filename = self.file_prefix + "toc.html" + + if index_filename == None: + index_filename = self.file_prefix + "index.html" + + Formatter.toc_dump( self, toc_filename, index_filename ) + + # + # Formatting sections + # + def section_enter( self, section ): + print self.html_header + + print section_title_header + print section.title + print section_title_footer + + maxwidth = 0 + for b in section.blocks.values(): + if len( b.name ) > maxwidth: + maxwidth = len( b.name ) + + width = 70 # XXX magic number + if maxwidth <> 0: + # print section synopsis + print section_synopsis_header + print "" + + columns = width / maxwidth + if columns < 1: + columns = 1 + + count = len( section.block_names ) + rows = ( count + columns - 1 ) / columns + + for r in range( rows ): + line = "" + for c in range( columns ): + i = r + c * rows + line = line + '' + line = line + "" + print line + + print "
      ' + if i < count: + name = section.block_names[i] + line = line + '' + name + '' + + line = line + '


      " + print section_synopsis_footer + + print description_header + print self.make_html_items( section.description ) + print description_footer + + def block_enter( self, block ): + print block_header + + # place html anchor if needed + if block.name: + print '

      ' + block.name + '

      ' + + # dump the block C source lines now + if block.code: + header = '' + for f in self.headers.keys(): + if block.source.filename.find( f ) >= 0: + header = self.headers[f] + ' (' + f + ')' + break; + +# if not header: +# sys.stderr.write( \ +# 'WARNING: No header macro for ' + block.source.filename + '.\n' ) + + if header: + print header_location_header + print 'Defined in ' + header + '.' + print header_location_footer + + print source_header + for l in block.code: + print self.html_source_quote( l, block.name ) + print source_footer + + def markup_enter( self, markup, block ): + if markup.tag == "description": + print description_header + else: + print marker_header + markup.tag + marker_inter + + self.print_html_markup( markup ) + + def markup_exit( self, markup, block ): + if markup.tag == "description": + print description_footer + else: + print marker_footer + + def block_exit( self, block ): + print block_footer_start + self.file_prefix + "index.html" + \ + block_footer_middle + self.file_prefix + "toc.html" + \ + block_footer_end + + def section_exit( self, section ): + print html_footer + + def section_dump_all( self ): + for section in self.sections: + self.section_dump( section, self.file_prefix + section.name + '.html' ) + +# eof diff --git a/src/tools/docmaker/utils.py b/src/tools/docmaker/utils.py new file mode 100644 index 0000000..1d96658 --- /dev/null +++ b/src/tools/docmaker/utils.py @@ -0,0 +1,132 @@ +# Utils (c) 2002, 2004, 2007, 2008 David Turner +# + +import string, sys, os, glob + +# current output directory +# +output_dir = None + + +# This function is used to sort the index. It is a simple lexicographical +# sort, except that it places capital letters before lowercase ones. +# +def index_sort( s1, s2 ): + if not s1: + return -1 + + if not s2: + return 1 + + l1 = len( s1 ) + l2 = len( s2 ) + m1 = string.lower( s1 ) + m2 = string.lower( s2 ) + + for i in range( l1 ): + if i >= l2 or m1[i] > m2[i]: + return 1 + + if m1[i] < m2[i]: + return -1 + + if s1[i] < s2[i]: + return -1 + + if s1[i] > s2[i]: + return 1 + + if l2 > l1: + return -1 + + return 0 + + +# Sort input_list, placing the elements of order_list in front. +# +def sort_order_list( input_list, order_list ): + new_list = order_list[:] + for id in input_list: + if not id in order_list: + new_list.append( id ) + return new_list + + +# Open the standard output to a given project documentation file. Use +# "output_dir" to determine the filename location if necessary and save the +# old stdout in a tuple that is returned by this function. +# +def open_output( filename ): + global output_dir + + if output_dir and output_dir != "": + filename = output_dir + os.sep + filename + + old_stdout = sys.stdout + new_file = open( filename, "w" ) + sys.stdout = new_file + + return ( new_file, old_stdout ) + + +# Close the output that was returned by "close_output". +# +def close_output( output ): + output[0].close() + sys.stdout = output[1] + + +# Check output directory. +# +def check_output(): + global output_dir + if output_dir: + if output_dir != "": + if not os.path.isdir( output_dir ): + sys.stderr.write( "argument" + " '" + output_dir + "' " + \ + "is not a valid directory" ) + sys.exit( 2 ) + else: + output_dir = None + + +def file_exists( pathname ): + """checks that a given file exists""" + result = 1 + try: + file = open( pathname, "r" ) + file.close() + except: + result = None + sys.stderr.write( pathname + " couldn't be accessed\n" ) + + return result + + +def make_file_list( args = None ): + """builds a list of input files from command-line arguments""" + file_list = [] + # sys.stderr.write( repr( sys.argv[1 :] ) + '\n' ) + + if not args: + args = sys.argv[1 :] + + for pathname in args: + if string.find( pathname, '*' ) >= 0: + newpath = glob.glob( pathname ) + newpath.sort() # sort files -- this is important because + # of the order of files + else: + newpath = [pathname] + + file_list.extend( newpath ) + + if len( file_list ) == 0: + file_list = None + else: + # now filter the file list to remove non-existing ones + file_list = filter( file_exists, file_list ) + + return file_list + +# eof diff --git a/src/tools/ftrandom/Makefile b/src/tools/ftrandom/Makefile new file mode 100644 index 0000000..2e61929 --- /dev/null +++ b/src/tools/ftrandom/Makefile @@ -0,0 +1,35 @@ +# TOP_DIR and OBJ_DIR should be set by the user to the right directories, +# if necessary. + +TOP_DIR ?= ../../.. +OBJ_DIR ?= $(TOP_DIR)/objs + + +# The setup below is for gcc on a Unix-like platform. + +SRC_DIR = $(TOP_DIR)/src/tools/ftrandom + +CC = gcc +WFLAGS = -Wmissing-prototypes \ + -Wunused \ + -Wimplicit \ + -Wreturn-type \ + -Wparentheses \ + -pedantic \ + -Wformat \ + -Wchar-subscripts \ + -Wsequence-point +CFLAGS = $(WFLAGS) \ + -g \ + -I $(TOP_DIR)/include +LIBS = -lm \ + -L $(OBJ_DIR) \ + -lfreetype \ + -lz + +all: $(OBJ_DIR)/ftrandom + +$(OBJ_DIR)/ftrandom: $(SRC_DIR)/ftrandom.c $(OBJ_DIR)/libfreetype.a + $(CC) -o $(OBJ_DIR)/ftrandom $(CFLAGS) $(SRC_DIR)/ftrandom.c $(LIBS) + +# EOF diff --git a/src/tools/ftrandom/README b/src/tools/ftrandom/README new file mode 100644 index 0000000..c093f15 --- /dev/null +++ b/src/tools/ftrandom/README @@ -0,0 +1,48 @@ +ftrandom +-------- + +This program expects a set of directories containing good fonts, and a set +of extensions of fonts to be tested. It will randomly pick a font, copy it, +introduce and error and then test it. + +The FreeType tests are quite basic: + + For each erroneous font it + forks off a new tester; + initializes the library; + opens each font in the file; + loads each glyph; + (optionally reviewing the contours of the glyph) + (optionally rasterizing) + closes the face. + +If the tester exits with a signal, or takes longer than 20 seconds then +ftrandom saves the erroneous font and continues. If the tester exits +normally or with an error, then the superstructure removes the test font and +continues. + +Arguments are: + + --all Test every font in the directory(ies) no matter + what its extension (some CID-keyed fonts have no + extension). + --check-outlines Call FT_Outline_Decompose on each glyph. + --dir Append to the list of directories to search + for good fonts. + --error-count Introduce single-byte errors into the + erroneous fonts. + --error-fraction Multiply the file size of the font by and + introduce that many errors into the erroneous + font file. + --ext Add to the set of font types tested. Known + extensions are `ttf', `otf', `ttc', `cid', `pfb', + `pfa', `bdf', `pcf', `pfr', `fon', `otb', and + `cff'. + --help Print out this list of options. + --nohints Specify FT_LOAD_NO_HINTING when loading glyphs. + --rasterize Call FT_Render_Glyph as well as loading it. + --result This is the directory in which test files are + placed. + --test Run a single test on a pre-generated testcase. + Done in the current process so it can be debugged + more easily. diff --git a/src/tools/ftrandom/ftrandom.c b/src/tools/ftrandom/ftrandom.c new file mode 100644 index 0000000..4daac0d --- /dev/null +++ b/src/tools/ftrandom/ftrandom.c @@ -0,0 +1,659 @@ +/* Copyright (C) 2005, 2007, 2008 by George Williams */ +/* + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + + * The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* modified by Werner Lemberg */ +/* This file is now part of the FreeType library */ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include FT_FREETYPE_H +#include FT_OUTLINE_H + +#define true 1 +#define false 0 +#define forever for (;;) + + + static int check_outlines = false; + static int nohints = false; + static int rasterize = false; + static char* results_dir = "results"; + +#define GOOD_FONTS_DIR "/home/wl/freetype-testfonts" + + static char* default_dir_list[] = + { + GOOD_FONTS_DIR, + NULL + }; + + static char* default_ext_list[] = + { + "ttf", + "otf", + "ttc", + "cid", + "pfb", + "pfa", + "bdf", + "pcf", + "pfr", + "fon", + "otb", + "cff", + NULL + }; + + static int error_count = 1; + static int error_fraction = 0; + + static FT_F26Dot6 font_size = 12 * 64; + + static struct fontlist + { + char* name; + int len; + unsigned int isbinary: 1; + unsigned int isascii: 1; + unsigned int ishex: 1; + + } *fontlist; + + static int fcnt; + + + static int + FT_MoveTo( const FT_Vector *to, + void *user ) + { + return 0; + } + + + static int + FT_LineTo( const FT_Vector *to, + void *user ) + { + return 0; + } + + + static int + FT_ConicTo( const FT_Vector *_cp, + const FT_Vector *to, + void *user ) + { + return 0; + } + + + static int + FT_CubicTo( const FT_Vector *cp1, + const FT_Vector *cp2, + const FT_Vector *to, + void *user ) + { + return 0; + } + + + static FT_Outline_Funcs outlinefuncs = + { + FT_MoveTo, + FT_LineTo, + FT_ConicTo, + FT_CubicTo, + 0, 0 /* No shift, no delta */ + }; + + + static void + TestFace( FT_Face face ) + { + int gid; + int load_flags = FT_LOAD_DEFAULT; + + + if ( check_outlines && + FT_IS_SCALABLE( face ) ) + load_flags = FT_LOAD_NO_BITMAP; + + if ( nohints ) + load_flags |= FT_LOAD_NO_HINTING; + + FT_Set_Char_Size( face, 0, font_size, 72, 72 ); + + for ( gid = 0; gid < face->num_glyphs; ++gid ) + { + if ( check_outlines && + FT_IS_SCALABLE( face ) ) + { + if ( !FT_Load_Glyph( face, gid, load_flags ) ) + FT_Outline_Decompose( &face->glyph->outline, &outlinefuncs, NULL ); + } + else + FT_Load_Glyph( face, gid, load_flags ); + + if ( rasterize ) + FT_Render_Glyph( face->glyph, ft_render_mode_normal ); + } + + FT_Done_Face( face ); + } + + + static void + ExecuteTest( char* testfont ) + { + FT_Library context; + FT_Face face; + int i, num; + + + if ( FT_Init_FreeType( &context ) ) + { + fprintf( stderr, "Can't initialize FreeType.\n" ); + exit( 1 ); + } + + if ( FT_New_Face( context, testfont, 0, &face ) ) + { + /* The font is erroneous, so if this fails that's ok. */ + exit( 0 ); + } + + if ( face->num_faces == 1 ) + TestFace( face ); + else + { + num = face->num_faces; + FT_Done_Face( face ); + + for ( i = 0; i < num; ++i ) + { + if ( !FT_New_Face( context, testfont, i, &face ) ) + TestFace( face ); + } + } + + exit( 0 ); + } + + + static int + extmatch( char* filename, + char** extensions ) + { + int i; + char* pt; + + + if ( extensions == NULL ) + return true; + + pt = strrchr( filename, '.' ); + if ( pt == NULL ) + return false; + if ( pt < strrchr( filename, '/' ) ) + return false; + + for ( i = 0; extensions[i] != NULL; ++i ) + if ( strcasecmp( pt + 1, extensions[i] ) == 0 || + strcasecmp( pt, extensions[i] ) == 0 ) + return true; + + return false; + } + + + static void + figurefiletype( struct fontlist* item ) + { + FILE* foo; + + + item->isbinary = item->isascii = item->ishex = false; + + foo = fopen( item->name, "rb" ); + if ( foo != NULL ) + { + /* Try to guess the file type from the first few characters... */ + int ch1 = getc( foo ); + int ch2 = getc( foo ); + int ch3 = getc( foo ); + int ch4 = getc( foo ); + + + fclose( foo ); + + if ( ( ch1 == 0 && ch2 == 1 && ch3 == 0 && ch4 == 0 ) || + ( ch1 == 'O' && ch2 == 'T' && ch3 == 'T' && ch4 == 'O' ) || + ( ch1 == 't' && ch2 == 'r' && ch3 == 'u' && ch4 == 'e' ) || + ( ch1 == 't' && ch2 == 't' && ch3 == 'c' && ch4 == 'f' ) ) + { + /* ttf, otf, ttc files */ + item->isbinary = true; + } + else if ( ch1 == 0x80 && ch2 == '\01' ) + { + /* PFB header */ + item->isbinary = true; + } + else if ( ch1 == '%' && ch2 == '!' ) + { + /* Random PostScript */ + if ( strstr( item->name, ".pfa" ) != NULL || + strstr( item->name, ".PFA" ) != NULL ) + item->ishex = true; + else + item->isascii = true; + } + else if ( ch1 == 1 && ch2 == 0 && ch3 == 4 ) + { + /* Bare CFF */ + item->isbinary = true; + } + else if ( ch1 == 'S' && ch2 == 'T' && ch3 == 'A' && ch4 == 'R' ) + { + /* BDF */ + item->ishex = true; + } + else if ( ch1 == 'P' && ch2 == 'F' && ch3 == 'R' && ch4 == '0' ) + { + /* PFR */ + item->isbinary = true; + } + else if ( ( ch1 == '\1' && ch2 == 'f' && ch3 == 'c' && ch4 == 'p' ) || + ( ch1 == 'M' && ch2 == 'Z' ) ) + { + /* Windows FON */ + item->isbinary = true; + } + else + { + fprintf( stderr, + "Can't recognize file type of `%s', assuming binary\n", + item->name ); + item->isbinary = true; + } + } + else + { + fprintf( stderr, "Can't open `%s' for typing the file.\n", + item->name ); + item->isbinary = true; + } + } + + + static void + FindFonts( char** fontdirs, + char** extensions ) + { + DIR* examples; + struct dirent* ent; + + int i, max; + char buffer[1025]; + struct stat statb; + + + max = 0; + fcnt = 0; + + for ( i = 0; fontdirs[i] != NULL; ++i ) + { + examples = opendir( fontdirs[i] ); + if ( examples == NULL ) + { + fprintf( stderr, + "Can't open example font directory `%s'\n", + fontdirs[i] ); + exit( 1 ); + } + + while ( ( ent = readdir( examples ) ) != NULL ) + { + snprintf( buffer, sizeof ( buffer ), + "%s/%s", fontdirs[i], ent->d_name ); + if ( stat( buffer, &statb ) == -1 || S_ISDIR( statb.st_mode ) ) + continue; + if ( extensions == NULL || extmatch( buffer, extensions ) ) + { + if ( fcnt >= max ) + { + max += 100; + fontlist = realloc( fontlist, max * sizeof ( struct fontlist ) ); + if ( fontlist == NULL ) + { + fprintf( stderr, "Can't allocate memory\n" ); + exit( 1 ); + } + } + + fontlist[fcnt].name = strdup( buffer ); + fontlist[fcnt].len = statb.st_size; + + figurefiletype( &fontlist[fcnt] ); + ++fcnt; + } + } + + closedir( examples ); + } + + if ( fcnt == 0 ) + { + fprintf( stderr, "Can't find matching font files.\n" ); + exit( 1 ); + } + + fontlist[fcnt].name = NULL; + } + + + static int + getErrorCnt( struct fontlist* item ) + { + if ( error_count == 0 && error_fraction == 0 ) + return 0; + + return error_count + ceil( error_fraction * item->len ); + } + + + static int + getRandom( int low, + int high ) + { + if ( low - high < 0x10000L ) + return low + ( ( random() >> 8 ) % ( high + 1 - low ) ); + + return low + ( random() % ( high + 1 - low ) ); + } + + + static int + copyfont( struct fontlist* item, + char* newfont ) + { + static char buffer[8096]; + FILE *good, *new; + int len; + int i, err_cnt; + + + good = fopen( item->name, "r" ); + if ( good == NULL ) + { + fprintf( stderr, "Can't open `%s'\n", item->name ); + return false; + } + + new = fopen( newfont, "w+" ); + if ( new == NULL ) + { + fprintf( stderr, "Can't create temporary output file `%s'\n", + newfont ); + exit( 1 ); + } + + while ( ( len = fread( buffer, 1, sizeof ( buffer ), good ) ) > 0 ) + fwrite( buffer, 1, len, new ); + + fclose( good ); + + err_cnt = getErrorCnt( item ); + for ( i = 0; i < err_cnt; ++i ) + { + fseek( new, getRandom( 0, item->len - 1 ), SEEK_SET ); + + if ( item->isbinary ) + putc( getRandom( 0, 0xff ), new ); + else if ( item->isascii ) + putc( getRandom( 0x20, 0x7e ), new ); + else + { + int hex = getRandom( 0, 15 ); + + + if ( hex < 10 ) + hex += '0'; + else + hex += 'A' - 10; + + putc( hex, new ); + } + } + + if ( ferror( new ) ) + { + fclose( new ); + unlink( newfont ); + return false; + } + + fclose( new ); + + return true; + } + + + static int child_pid; + + static void + abort_test( int sig ) + { + /* If a time-out happens, then kill the child */ + kill( child_pid, SIGFPE ); + write( 2, "Timeout... ", 11 ); + } + + + static void + do_test( void ) + { + int i = getRandom( 0, fcnt - 1 ); + static int test_num = 0; + char buffer[1024]; + + + sprintf( buffer, "%s/test%d", results_dir, test_num++ ); + + if ( copyfont ( &fontlist[i], buffer ) ) + { + signal( SIGALRM, abort_test ); + /* Anything that takes more than 20 seconds */ + /* to parse and/or rasterize is an error. */ + alarm( 20 ); + if ( ( child_pid = fork() ) == 0 ) + ExecuteTest( buffer ); + else if ( child_pid != -1 ) + { + int status; + + + waitpid( child_pid, &status, 0 ); + alarm( 0 ); + if ( WIFSIGNALED ( status ) ) + printf( "Error found in file `%s'\n", buffer ); + else + unlink( buffer ); + } + else + { + fprintf( stderr, "Can't fork test case.\n" ); + exit( 1 ); + } + alarm( 0 ); + } + } + + + static void + usage( FILE* out, + char* name ) + { + fprintf( out, "%s [options] -- Generate random erroneous fonts\n" + " and attempt to parse them with FreeType.\n\n", name ); + + fprintf( out, " --all All non-directory files are assumed to be fonts.\n" ); + fprintf( out, " --check-outlines Make sure we can parse the outlines of each glyph.\n" ); + fprintf( out, " --dir Append to list of font search directories.\n" ); + fprintf( out, " --error-count Introduce single byte errors into each font.\n" ); + fprintf( out, " --error-fraction Introduce *filesize single byte errors\n" + " into each font.\n" ); + fprintf( out, " --ext Add to list of extensions indicating fonts.\n" ); + fprintf( out, " --help Print this.\n" ); + fprintf( out, " --nohints Turn off hinting.\n" ); + fprintf( out, " --rasterize Attempt to rasterize each glyph.\n" ); + fprintf( out, " --results Directory in which to place the test fonts.\n" ); + fprintf( out, " --size Use the given font size for the tests.\n" ); + fprintf( out, " --test Run a single test on an already existing file.\n" ); + } + + + int + main( int argc, + char** argv ) + { + char **dirs, **exts; + char *pt, *end; + int dcnt = 0, ecnt = 0, rset = false, allexts = false; + int i; + time_t now; + char* testfile = NULL; + + + dirs = calloc( argc + 1, sizeof ( char ** ) ); + exts = calloc( argc + 1, sizeof ( char ** ) ); + + for ( i = 1; i < argc; ++i ) + { + pt = argv[i]; + if ( pt[0] == '-' && pt[1] == '-' ) + ++pt; + + if ( strcmp( pt, "-all" ) == 0 ) + allexts = true; + else if ( strcmp( pt, "-check-outlines" ) == 0 ) + check_outlines = true; + else if ( strcmp( pt, "-dir" ) == 0 ) + dirs[dcnt++] = argv[++i]; + else if ( strcmp( pt, "-error-count" ) == 0 ) + { + if ( !rset ) + error_fraction = 0; + rset = true; + error_count = strtol( argv[++i], &end, 10 ); + if ( *end != '\0' ) + { + fprintf( stderr, "Bad value for error-count: %s\n", argv[i] ); + exit( 1 ); + } + } + else if ( strcmp( pt, "-error-fraction" ) == 0 ) + { + if ( !rset ) + error_count = 0; + rset = true; + error_fraction = strtod( argv[++i], &end ); + if ( *end != '\0' ) + { + fprintf( stderr, "Bad value for error-fraction: %s\n", argv[i] ); + exit( 1 ); + } + } + else if ( strcmp( pt, "-ext" ) == 0 ) + exts[ecnt++] = argv[++i]; + else if ( strcmp( pt, "-help" ) == 0 ) + { + usage( stdout, argv[0] ); + exit( 0 ); + } + else if ( strcmp( pt, "-nohints" ) == 0 ) + nohints = true; + else if ( strcmp( pt, "-rasterize" ) == 0 ) + rasterize = true; + else if ( strcmp( pt, "-results" ) == 0 ) + results_dir = argv[++i]; + else if ( strcmp( pt, "-size" ) == 0 ) + { + font_size = (FT_F26Dot6)( strtod( argv[++i], &end ) * 64 ); + if ( *end != '\0' || font_size < 64 ) + { + fprintf( stderr, "Bad value for size: %s\n", argv[i] ); + exit( 1 ); + } + } + else if ( strcmp( pt, "-test" ) == 0 ) + testfile = argv[++i]; + else + { + usage( stderr, argv[0] ); + exit( 1 ); + } + } + + if ( allexts ) + exts = NULL; + else if ( ecnt == 0 ) + exts = default_ext_list; + + if ( dcnt == 0 ) + dirs = default_dir_list; + + if ( testfile != NULL ) + ExecuteTest( testfile ); /* This should never return */ + + time( &now ); + srandom( now ); + + FindFonts( dirs, exts ); + mkdir( results_dir, 0755 ); + + forever + do_test(); + + return 0; + } + + +/* EOF */ diff --git a/src/tools/glnames.py b/src/tools/glnames.py new file mode 100644 index 0000000..8810bf5 --- /dev/null +++ b/src/tools/glnames.py @@ -0,0 +1,5487 @@ +#!/usr/bin/env python +# + +# +# FreeType 2 glyph name builder +# + + +# Copyright 1996-2000, 2003, 2005, 2007, 2008, 2011 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +"""\ + +usage: %s + + This python script generates the glyph names tables defined in the + `psnames' module. + + Its single argument is the name of the header file to be created. +""" + + +import sys, string, struct, re, os.path + + +# This table lists the glyphs according to the Macintosh specification. +# It is used by the TrueType Postscript names table. +# +# See +# +# http://fonts.apple.com/TTRefMan/RM06/Chap6post.html +# +# for the official list. +# +mac_standard_names = \ +[ + # 0 + ".notdef", ".null", "nonmarkingreturn", "space", "exclam", + "quotedbl", "numbersign", "dollar", "percent", "ampersand", + + # 10 + "quotesingle", "parenleft", "parenright", "asterisk", "plus", + "comma", "hyphen", "period", "slash", "zero", + + # 20 + "one", "two", "three", "four", "five", + "six", "seven", "eight", "nine", "colon", + + # 30 + "semicolon", "less", "equal", "greater", "question", + "at", "A", "B", "C", "D", + + # 40 + "E", "F", "G", "H", "I", + "J", "K", "L", "M", "N", + + # 50 + "O", "P", "Q", "R", "S", + "T", "U", "V", "W", "X", + + # 60 + "Y", "Z", "bracketleft", "backslash", "bracketright", + "asciicircum", "underscore", "grave", "a", "b", + + # 70 + "c", "d", "e", "f", "g", + "h", "i", "j", "k", "l", + + # 80 + "m", "n", "o", "p", "q", + "r", "s", "t", "u", "v", + + # 90 + "w", "x", "y", "z", "braceleft", + "bar", "braceright", "asciitilde", "Adieresis", "Aring", + + # 100 + "Ccedilla", "Eacute", "Ntilde", "Odieresis", "Udieresis", + "aacute", "agrave", "acircumflex", "adieresis", "atilde", + + # 110 + "aring", "ccedilla", "eacute", "egrave", "ecircumflex", + "edieresis", "iacute", "igrave", "icircumflex", "idieresis", + + # 120 + "ntilde", "oacute", "ograve", "ocircumflex", "odieresis", + "otilde", "uacute", "ugrave", "ucircumflex", "udieresis", + + # 130 + "dagger", "degree", "cent", "sterling", "section", + "bullet", "paragraph", "germandbls", "registered", "copyright", + + # 140 + "trademark", "acute", "dieresis", "notequal", "AE", + "Oslash", "infinity", "plusminus", "lessequal", "greaterequal", + + # 150 + "yen", "mu", "partialdiff", "summation", "product", + "pi", "integral", "ordfeminine", "ordmasculine", "Omega", + + # 160 + "ae", "oslash", "questiondown", "exclamdown", "logicalnot", + "radical", "florin", "approxequal", "Delta", "guillemotleft", + + # 170 + "guillemotright", "ellipsis", "nonbreakingspace", "Agrave", "Atilde", + "Otilde", "OE", "oe", "endash", "emdash", + + # 180 + "quotedblleft", "quotedblright", "quoteleft", "quoteright", "divide", + "lozenge", "ydieresis", "Ydieresis", "fraction", "currency", + + # 190 + "guilsinglleft", "guilsinglright", "fi", "fl", "daggerdbl", + "periodcentered", "quotesinglbase", "quotedblbase", "perthousand", + "Acircumflex", + + # 200 + "Ecircumflex", "Aacute", "Edieresis", "Egrave", "Iacute", + "Icircumflex", "Idieresis", "Igrave", "Oacute", "Ocircumflex", + + # 210 + "apple", "Ograve", "Uacute", "Ucircumflex", "Ugrave", + "dotlessi", "circumflex", "tilde", "macron", "breve", + + # 220 + "dotaccent", "ring", "cedilla", "hungarumlaut", "ogonek", + "caron", "Lslash", "lslash", "Scaron", "scaron", + + # 230 + "Zcaron", "zcaron", "brokenbar", "Eth", "eth", + "Yacute", "yacute", "Thorn", "thorn", "minus", + + # 240 + "multiply", "onesuperior", "twosuperior", "threesuperior", "onehalf", + "onequarter", "threequarters", "franc", "Gbreve", "gbreve", + + # 250 + "Idotaccent", "Scedilla", "scedilla", "Cacute", "cacute", + "Ccaron", "ccaron", "dcroat" +] + + +# The list of standard `SID' glyph names. For the official list, +# see Annex A of document at +# +# http://partners.adobe.com/public/developer/en/font/5176.CFF.pdf . +# +sid_standard_names = \ +[ + # 0 + ".notdef", "space", "exclam", "quotedbl", "numbersign", + "dollar", "percent", "ampersand", "quoteright", "parenleft", + + # 10 + "parenright", "asterisk", "plus", "comma", "hyphen", + "period", "slash", "zero", "one", "two", + + # 20 + "three", "four", "five", "six", "seven", + "eight", "nine", "colon", "semicolon", "less", + + # 30 + "equal", "greater", "question", "at", "A", + "B", "C", "D", "E", "F", + + # 40 + "G", "H", "I", "J", "K", + "L", "M", "N", "O", "P", + + # 50 + "Q", "R", "S", "T", "U", + "V", "W", "X", "Y", "Z", + + # 60 + "bracketleft", "backslash", "bracketright", "asciicircum", "underscore", + "quoteleft", "a", "b", "c", "d", + + # 70 + "e", "f", "g", "h", "i", + "j", "k", "l", "m", "n", + + # 80 + "o", "p", "q", "r", "s", + "t", "u", "v", "w", "x", + + # 90 + "y", "z", "braceleft", "bar", "braceright", + "asciitilde", "exclamdown", "cent", "sterling", "fraction", + + # 100 + "yen", "florin", "section", "currency", "quotesingle", + "quotedblleft", "guillemotleft", "guilsinglleft", "guilsinglright", "fi", + + # 110 + "fl", "endash", "dagger", "daggerdbl", "periodcentered", + "paragraph", "bullet", "quotesinglbase", "quotedblbase", "quotedblright", + + # 120 + "guillemotright", "ellipsis", "perthousand", "questiondown", "grave", + "acute", "circumflex", "tilde", "macron", "breve", + + # 130 + "dotaccent", "dieresis", "ring", "cedilla", "hungarumlaut", + "ogonek", "caron", "emdash", "AE", "ordfeminine", + + # 140 + "Lslash", "Oslash", "OE", "ordmasculine", "ae", + "dotlessi", "lslash", "oslash", "oe", "germandbls", + + # 150 + "onesuperior", "logicalnot", "mu", "trademark", "Eth", + "onehalf", "plusminus", "Thorn", "onequarter", "divide", + + # 160 + "brokenbar", "degree", "thorn", "threequarters", "twosuperior", + "registered", "minus", "eth", "multiply", "threesuperior", + + # 170 + "copyright", "Aacute", "Acircumflex", "Adieresis", "Agrave", + "Aring", "Atilde", "Ccedilla", "Eacute", "Ecircumflex", + + # 180 + "Edieresis", "Egrave", "Iacute", "Icircumflex", "Idieresis", + "Igrave", "Ntilde", "Oacute", "Ocircumflex", "Odieresis", + + # 190 + "Ograve", "Otilde", "Scaron", "Uacute", "Ucircumflex", + "Udieresis", "Ugrave", "Yacute", "Ydieresis", "Zcaron", + + # 200 + "aacute", "acircumflex", "adieresis", "agrave", "aring", + "atilde", "ccedilla", "eacute", "ecircumflex", "edieresis", + + # 210 + "egrave", "iacute", "icircumflex", "idieresis", "igrave", + "ntilde", "oacute", "ocircumflex", "odieresis", "ograve", + + # 220 + "otilde", "scaron", "uacute", "ucircumflex", "udieresis", + "ugrave", "yacute", "ydieresis", "zcaron", "exclamsmall", + + # 230 + "Hungarumlautsmall", "dollaroldstyle", "dollarsuperior", "ampersandsmall", + "Acutesmall", + "parenleftsuperior", "parenrightsuperior", "twodotenleader", + "onedotenleader", "zerooldstyle", + + # 240 + "oneoldstyle", "twooldstyle", "threeoldstyle", "fouroldstyle", + "fiveoldstyle", + "sixoldstyle", "sevenoldstyle", "eightoldstyle", "nineoldstyle", + "commasuperior", + + # 250 + "threequartersemdash", "periodsuperior", "questionsmall", "asuperior", + "bsuperior", + "centsuperior", "dsuperior", "esuperior", "isuperior", "lsuperior", + + # 260 + "msuperior", "nsuperior", "osuperior", "rsuperior", "ssuperior", + "tsuperior", "ff", "ffi", "ffl", "parenleftinferior", + + # 270 + "parenrightinferior", "Circumflexsmall", "hyphensuperior", "Gravesmall", + "Asmall", + "Bsmall", "Csmall", "Dsmall", "Esmall", "Fsmall", + + # 280 + "Gsmall", "Hsmall", "Ismall", "Jsmall", "Ksmall", + "Lsmall", "Msmall", "Nsmall", "Osmall", "Psmall", + + # 290 + "Qsmall", "Rsmall", "Ssmall", "Tsmall", "Usmall", + "Vsmall", "Wsmall", "Xsmall", "Ysmall", "Zsmall", + + # 300 + "colonmonetary", "onefitted", "rupiah", "Tildesmall", "exclamdownsmall", + "centoldstyle", "Lslashsmall", "Scaronsmall", "Zcaronsmall", + "Dieresissmall", + + # 310 + "Brevesmall", "Caronsmall", "Dotaccentsmall", "Macronsmall", "figuredash", + "hypheninferior", "Ogoneksmall", "Ringsmall", "Cedillasmall", + "questiondownsmall", + + # 320 + "oneeighth", "threeeighths", "fiveeighths", "seveneighths", "onethird", + "twothirds", "zerosuperior", "foursuperior", "fivesuperior", + "sixsuperior", + + # 330 + "sevensuperior", "eightsuperior", "ninesuperior", "zeroinferior", + "oneinferior", + "twoinferior", "threeinferior", "fourinferior", "fiveinferior", + "sixinferior", + + # 340 + "seveninferior", "eightinferior", "nineinferior", "centinferior", + "dollarinferior", + "periodinferior", "commainferior", "Agravesmall", "Aacutesmall", + "Acircumflexsmall", + + # 350 + "Atildesmall", "Adieresissmall", "Aringsmall", "AEsmall", "Ccedillasmall", + "Egravesmall", "Eacutesmall", "Ecircumflexsmall", "Edieresissmall", + "Igravesmall", + + # 360 + "Iacutesmall", "Icircumflexsmall", "Idieresissmall", "Ethsmall", + "Ntildesmall", + "Ogravesmall", "Oacutesmall", "Ocircumflexsmall", "Otildesmall", + "Odieresissmall", + + # 370 + "OEsmall", "Oslashsmall", "Ugravesmall", "Uacutesmall", + "Ucircumflexsmall", + "Udieresissmall", "Yacutesmall", "Thornsmall", "Ydieresissmall", + "001.000", + + # 380 + "001.001", "001.002", "001.003", "Black", "Bold", + "Book", "Light", "Medium", "Regular", "Roman", + + # 390 + "Semibold" +] + + +# This table maps character codes of the Adobe Standard Type 1 +# encoding to glyph indices in the sid_standard_names table. +# +t1_standard_encoding = \ +[ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, + 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, + + 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, + 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, + 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, + 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, + 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, + + 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, + 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, + 89, 90, 91, 92, 93, 94, 95, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 96, 97, 98, 99, 100, 101, 102, 103, 104, + 105, 106, 107, 108, 109, 110, 0, 111, 112, 113, + 114, 0, 115, 116, 117, 118, 119, 120, 121, 122, + 0, 123, 0, 124, 125, 126, 127, 128, 129, 130, + + 131, 0, 132, 133, 0, 134, 135, 136, 137, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 138, 0, 139, 0, 0, + 0, 0, 140, 141, 142, 143, 0, 0, 0, 0, + 0, 144, 0, 0, 0, 145, 0, 0, 146, 147, + + 148, 149, 0, 0, 0, 0 +] + + +# This table maps character codes of the Adobe Expert Type 1 +# encoding to glyph indices in the sid_standard_names table. +# +t1_expert_encoding = \ +[ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 1, 229, 230, 0, 231, 232, 233, 234, + 235, 236, 237, 238, 13, 14, 15, 99, 239, 240, + + 241, 242, 243, 244, 245, 246, 247, 248, 27, 28, + 249, 250, 251, 252, 0, 253, 254, 255, 256, 257, + 0, 0, 0, 258, 0, 0, 259, 260, 261, 262, + 0, 0, 263, 264, 265, 0, 266, 109, 110, 267, + 268, 269, 0, 270, 271, 272, 273, 274, 275, 276, + + 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, + 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, + 297, 298, 299, 300, 301, 302, 303, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 304, 305, 306, 0, 0, 307, 308, 309, 310, + 311, 0, 312, 0, 0, 313, 0, 0, 314, 315, + 0, 0, 316, 317, 318, 0, 0, 0, 158, 155, + 163, 319, 320, 321, 322, 323, 324, 325, 0, 0, + + 326, 150, 164, 169, 327, 328, 329, 330, 331, 332, + 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, + 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, + 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, + 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, + + 373, 374, 375, 376, 377, 378 +] + + +# This data has been taken literally from the files `glyphlist.txt' +# and `zapfdingbats.txt' version 2.0, Sept 2002. It is available from +# +# http://sourceforge.net/adobe/aglfn/ +# +adobe_glyph_list = """\ +A;0041 +AE;00C6 +AEacute;01FC +AEmacron;01E2 +AEsmall;F7E6 +Aacute;00C1 +Aacutesmall;F7E1 +Abreve;0102 +Abreveacute;1EAE +Abrevecyrillic;04D0 +Abrevedotbelow;1EB6 +Abrevegrave;1EB0 +Abrevehookabove;1EB2 +Abrevetilde;1EB4 +Acaron;01CD +Acircle;24B6 +Acircumflex;00C2 +Acircumflexacute;1EA4 +Acircumflexdotbelow;1EAC +Acircumflexgrave;1EA6 +Acircumflexhookabove;1EA8 +Acircumflexsmall;F7E2 +Acircumflextilde;1EAA +Acute;F6C9 +Acutesmall;F7B4 +Acyrillic;0410 +Adblgrave;0200 +Adieresis;00C4 +Adieresiscyrillic;04D2 +Adieresismacron;01DE +Adieresissmall;F7E4 +Adotbelow;1EA0 +Adotmacron;01E0 +Agrave;00C0 +Agravesmall;F7E0 +Ahookabove;1EA2 +Aiecyrillic;04D4 +Ainvertedbreve;0202 +Alpha;0391 +Alphatonos;0386 +Amacron;0100 +Amonospace;FF21 +Aogonek;0104 +Aring;00C5 +Aringacute;01FA +Aringbelow;1E00 +Aringsmall;F7E5 +Asmall;F761 +Atilde;00C3 +Atildesmall;F7E3 +Aybarmenian;0531 +B;0042 +Bcircle;24B7 +Bdotaccent;1E02 +Bdotbelow;1E04 +Becyrillic;0411 +Benarmenian;0532 +Beta;0392 +Bhook;0181 +Blinebelow;1E06 +Bmonospace;FF22 +Brevesmall;F6F4 +Bsmall;F762 +Btopbar;0182 +C;0043 +Caarmenian;053E +Cacute;0106 +Caron;F6CA +Caronsmall;F6F5 +Ccaron;010C +Ccedilla;00C7 +Ccedillaacute;1E08 +Ccedillasmall;F7E7 +Ccircle;24B8 +Ccircumflex;0108 +Cdot;010A +Cdotaccent;010A +Cedillasmall;F7B8 +Chaarmenian;0549 +Cheabkhasiancyrillic;04BC +Checyrillic;0427 +Chedescenderabkhasiancyrillic;04BE +Chedescendercyrillic;04B6 +Chedieresiscyrillic;04F4 +Cheharmenian;0543 +Chekhakassiancyrillic;04CB +Cheverticalstrokecyrillic;04B8 +Chi;03A7 +Chook;0187 +Circumflexsmall;F6F6 +Cmonospace;FF23 +Coarmenian;0551 +Csmall;F763 +D;0044 +DZ;01F1 +DZcaron;01C4 +Daarmenian;0534 +Dafrican;0189 +Dcaron;010E +Dcedilla;1E10 +Dcircle;24B9 +Dcircumflexbelow;1E12 +Dcroat;0110 +Ddotaccent;1E0A +Ddotbelow;1E0C +Decyrillic;0414 +Deicoptic;03EE +Delta;2206 +Deltagreek;0394 +Dhook;018A +Dieresis;F6CB +DieresisAcute;F6CC 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+yhook;01B4 +yhookabove;1EF7 +yiarmenian;0575 +yicyrillic;0457 +yikorean;3162 +yinyang;262F +yiwnarmenian;0582 +ymonospace;FF59 +yod;05D9 +yoddagesh;FB39 +yoddageshhebrew;FB39 +yodhebrew;05D9 +yodyodhebrew;05F2 +yodyodpatahhebrew;FB1F +yohiragana;3088 +yoikorean;3189 +yokatakana;30E8 +yokatakanahalfwidth;FF96 +yokorean;315B +yosmallhiragana;3087 +yosmallkatakana;30E7 +yosmallkatakanahalfwidth;FF6E +yotgreek;03F3 +yoyaekorean;3188 +yoyakorean;3187 +yoyakthai;0E22 +yoyingthai;0E0D +yparen;24B4 +ypogegrammeni;037A +ypogegrammenigreekcmb;0345 +yr;01A6 +yring;1E99 +ysuperior;02B8 +ytilde;1EF9 +yturned;028E +yuhiragana;3086 +yuikorean;318C +yukatakana;30E6 +yukatakanahalfwidth;FF95 +yukorean;3160 +yusbigcyrillic;046B +yusbigiotifiedcyrillic;046D +yuslittlecyrillic;0467 +yuslittleiotifiedcyrillic;0469 +yusmallhiragana;3085 +yusmallkatakana;30E5 +yusmallkatakanahalfwidth;FF6D +yuyekorean;318B +yuyeokorean;318A +yyabengali;09DF +yyadeva;095F +z;007A +zaarmenian;0566 +zacute;017A +zadeva;095B +zagurmukhi;0A5B +zaharabic;0638 +zahfinalarabic;FEC6 +zahinitialarabic;FEC7 +zahiragana;3056 +zahmedialarabic;FEC8 +zainarabic;0632 +zainfinalarabic;FEB0 +zakatakana;30B6 +zaqefgadolhebrew;0595 +zaqefqatanhebrew;0594 +zarqahebrew;0598 +zayin;05D6 +zayindagesh;FB36 +zayindageshhebrew;FB36 +zayinhebrew;05D6 +zbopomofo;3117 +zcaron;017E +zcircle;24E9 +zcircumflex;1E91 +zcurl;0291 +zdot;017C +zdotaccent;017C +zdotbelow;1E93 +zecyrillic;0437 +zedescendercyrillic;0499 +zedieresiscyrillic;04DF +zehiragana;305C +zekatakana;30BC +zero;0030 +zeroarabic;0660 +zerobengali;09E6 +zerodeva;0966 +zerogujarati;0AE6 +zerogurmukhi;0A66 +zerohackarabic;0660 +zeroinferior;2080 +zeromonospace;FF10 +zerooldstyle;F730 +zeropersian;06F0 +zerosuperior;2070 +zerothai;0E50 +zerowidthjoiner;FEFF +zerowidthnonjoiner;200C +zerowidthspace;200B +zeta;03B6 +zhbopomofo;3113 +zhearmenian;056A +zhebrevecyrillic;04C2 +zhecyrillic;0436 +zhedescendercyrillic;0497 +zhedieresiscyrillic;04DD +zihiragana;3058 +zikatakana;30B8 +zinorhebrew;05AE +zlinebelow;1E95 +zmonospace;FF5A +zohiragana;305E +zokatakana;30BE +zparen;24B5 +zretroflexhook;0290 +zstroke;01B6 +zuhiragana;305A +zukatakana;30BA +a100;275E +a101;2761 +a102;2762 +a103;2763 +a104;2764 +a105;2710 +a106;2765 +a107;2766 +a108;2767 +a109;2660 +a10;2721 +a110;2665 +a111;2666 +a112;2663 +a117;2709 +a118;2708 +a119;2707 +a11;261B +a120;2460 +a121;2461 +a122;2462 +a123;2463 +a124;2464 +a125;2465 +a126;2466 +a127;2467 +a128;2468 +a129;2469 +a12;261E +a130;2776 +a131;2777 +a132;2778 +a133;2779 +a134;277A +a135;277B +a136;277C +a137;277D +a138;277E +a139;277F +a13;270C +a140;2780 +a141;2781 +a142;2782 +a143;2783 +a144;2784 +a145;2785 +a146;2786 +a147;2787 +a148;2788 +a149;2789 +a14;270D +a150;278A +a151;278B +a152;278C +a153;278D +a154;278E +a155;278F +a156;2790 +a157;2791 +a158;2792 +a159;2793 +a15;270E +a160;2794 +a161;2192 +a162;27A3 +a163;2194 +a164;2195 +a165;2799 +a166;279B +a167;279C +a168;279D +a169;279E +a16;270F +a170;279F +a171;27A0 +a172;27A1 +a173;27A2 +a174;27A4 +a175;27A5 +a176;27A6 +a177;27A7 +a178;27A8 +a179;27A9 +a17;2711 +a180;27AB +a181;27AD +a182;27AF +a183;27B2 +a184;27B3 +a185;27B5 +a186;27B8 +a187;27BA +a188;27BB +a189;27BC +a18;2712 +a190;27BD +a191;27BE +a192;279A +a193;27AA +a194;27B6 +a195;27B9 +a196;2798 +a197;27B4 +a198;27B7 +a199;27AC +a19;2713 +a1;2701 +a200;27AE +a201;27B1 +a202;2703 +a203;2750 +a204;2752 +a205;276E +a206;2770 +a20;2714 +a21;2715 +a22;2716 +a23;2717 +a24;2718 +a25;2719 +a26;271A +a27;271B +a28;271C +a29;2722 +a2;2702 +a30;2723 +a31;2724 +a32;2725 +a33;2726 +a34;2727 +a35;2605 +a36;2729 +a37;272A +a38;272B +a39;272C +a3;2704 +a40;272D +a41;272E +a42;272F +a43;2730 +a44;2731 +a45;2732 +a46;2733 +a47;2734 +a48;2735 +a49;2736 +a4;260E +a50;2737 +a51;2738 +a52;2739 +a53;273A +a54;273B +a55;273C +a56;273D +a57;273E +a58;273F +a59;2740 +a5;2706 +a60;2741 +a61;2742 +a62;2743 +a63;2744 +a64;2745 +a65;2746 +a66;2747 +a67;2748 +a68;2749 +a69;274A +a6;271D +a70;274B +a71;25CF +a72;274D +a73;25A0 +a74;274F +a75;2751 +a76;25B2 +a77;25BC +a78;25C6 +a79;2756 +a7;271E +a81;25D7 +a82;2758 +a83;2759 +a84;275A +a85;276F +a86;2771 +a87;2772 +a88;2773 +a89;2768 +a8;271F +a90;2769 +a91;276C +a92;276D +a93;276A +a94;276B +a95;2774 +a96;2775 +a97;275B +a98;275C +a99;275D +a9;2720 +""" + + +# string table management +# +class StringTable: + def __init__( self, name_list, master_table_name ): + self.names = name_list + self.master_table = master_table_name + self.indices = {} + index = 0 + + for name in name_list: + self.indices[name] = index + index += len( name ) + 1 + + self.total = index + + def dump( self, file ): + write = file.write + write( " static const char " + self.master_table + + "[" + repr( self.total ) + "] =\n" ) + write( " {\n" ) + + line = "" + for name in self.names: + line += " '" + line += string.join( ( re.findall( ".", name ) ), "','" ) + line += "', 0,\n" + + write( line + " };\n\n\n" ) + + def dump_sublist( self, file, table_name, macro_name, sublist ): + write = file.write + write( "#define " + macro_name + " " + repr( len( sublist ) ) + "\n\n" ) + + write( " /* Values are offsets into the `" + + self.master_table + "' table */\n\n" ) + write( " static const short " + table_name + + "[" + macro_name + "] =\n" ) + write( " {\n" ) + + line = " " + comma = "" + col = 0 + + for name in sublist: + line += comma + line += "%4d" % self.indices[name] + col += 1 + comma = "," + if col == 14: + col = 0 + comma = ",\n " + + write( line + "\n };\n\n\n" ) + + +# We now store the Adobe Glyph List in compressed form. The list is put +# into a data structure called `trie' (because it has a tree-like +# appearance). Consider, for example, that you want to store the +# following name mapping: +# +# A => 1 +# Aacute => 6 +# Abalon => 2 +# Abstract => 4 +# +# It is possible to store the entries as follows. +# +# A => 1 +# | +# +-acute => 6 +# | +# +-b +# | +# +-alon => 2 +# | +# +-stract => 4 +# +# We see that each node in the trie has: +# +# - one or more `letters' +# - an optional value +# - zero or more child nodes +# +# The first step is to call +# +# root = StringNode( "", 0 ) +# for word in map.values(): +# root.add( word, map[word] ) +# +# which creates a large trie where each node has only one children. +# +# Executing +# +# root = root.optimize() +# +# optimizes the trie by merging the letters of successive nodes whenever +# possible. +# +# Each node of the trie is stored as follows. +# +# - First the node's letter, according to the following scheme. We +# use the fact that in the AGL no name contains character codes > 127. +# +# name bitsize description +# ---------------------------------------------------------------- +# notlast 1 Set to 1 if this is not the last letter +# in the word. +# ascii 7 The letter's ASCII value. +# +# - The letter is followed by a children count and the value of the +# current key (if any). Again we can do some optimization because all +# AGL entries are from the BMP; this means that 16 bits are sufficient +# to store its Unicode values. Additionally, no node has more than +# 127 children. +# +# name bitsize description +# ----------------------------------------- +# hasvalue 1 Set to 1 if a 16-bit Unicode value follows. +# num_children 7 Number of children. Can be 0 only if +# `hasvalue' is set to 1. +# value 16 Optional Unicode value. +# +# - A node is finished by a list of 16bit absolute offsets to the +# children, which must be sorted in increasing order of their first +# letter. +# +# For simplicity, all 16bit quantities are stored in big-endian order. +# +# The root node has first letter = 0, and no value. +# +class StringNode: + def __init__( self, letter, value ): + self.letter = letter + self.value = value + self.children = {} + + def __cmp__( self, other ): + return ord( self.letter[0] ) - ord( other.letter[0] ) + + def add( self, word, value ): + if len( word ) == 0: + self.value = value + return + + letter = word[0] + word = word[1:] + + if self.children.has_key( letter ): + child = self.children[letter] + else: + child = StringNode( letter, 0 ) + self.children[letter] = child + + child.add( word, value ) + + def optimize( self ): + # optimize all children first + children = self.children.values() + self.children = {} + + for child in children: + self.children[child.letter[0]] = child.optimize() + + # don't optimize if there's a value, + # if we don't have any child or if we + # have more than one child + if ( self.value != 0 ) or ( not children ) or len( children ) > 1: + return self + + child = children[0] + + self.letter += child.letter + self.value = child.value + self.children = child.children + + return self + + def dump_debug( self, write, margin ): + # this is used during debugging + line = margin + "+-" + if len( self.letter ) == 0: + line += "" + else: + line += self.letter + + if self.value: + line += " => " + repr( self.value ) + + write( line + "\n" ) + + if self.children: + margin += "| " + for child in self.children.values(): + child.dump_debug( write, margin ) + + def locate( self, index ): + self.index = index + if len( self.letter ) > 0: + index += len( self.letter ) + 1 + else: + index += 2 + + if self.value != 0: + index += 2 + + children = self.children.values() + children.sort() + + index += 2 * len( children ) + for child in children: + index = child.locate( index ) + + return index + + def store( self, storage ): + # write the letters + l = len( self.letter ) + if l == 0: + storage += struct.pack( "B", 0 ) + else: + for n in range( l ): + val = ord( self.letter[n] ) + if n < l - 1: + val += 128 + storage += struct.pack( "B", val ) + + # write the count + children = self.children.values() + children.sort() + + count = len( children ) + + if self.value != 0: + storage += struct.pack( "!BH", count + 128, self.value ) + else: + storage += struct.pack( "B", count ) + + for child in children: + storage += struct.pack( "!H", child.index ) + + for child in children: + storage = child.store( storage ) + + return storage + + +def adobe_glyph_values(): + """return the list of glyph names and their unicode values""" + + lines = string.split( adobe_glyph_list, '\n' ) + glyphs = [] + values = [] + + for line in lines: + if line: + fields = string.split( line, ';' ) +# print fields[1] + ' - ' + fields[0] + subfields = string.split( fields[1], ' ' ) + if len( subfields ) == 1: + glyphs.append( fields[0] ) + values.append( fields[1] ) + + return glyphs, values + + +def filter_glyph_names( alist, filter ): + """filter `alist' by taking _out_ all glyph names that are in `filter'""" + + count = 0 + extras = [] + + for name in alist: + try: + filtered_index = filter.index( name ) + except: + extras.append( name ) + + return extras + + +def dump_encoding( file, encoding_name, encoding_list ): + """dump a given encoding""" + + write = file.write + write( " /* the following are indices into the SID name table */\n" ) + write( " static const unsigned short " + encoding_name + + "[" + repr( len( encoding_list ) ) + "] =\n" ) + write( " {\n" ) + + line = " " + comma = "" + col = 0 + for value in encoding_list: + line += comma + line += "%3d" % value + comma = "," + col += 1 + if col == 16: + col = 0 + comma = ",\n " + + write( line + "\n };\n\n\n" ) + + +def dump_array( the_array, write, array_name ): + """dumps a given encoding""" + + write( " static const unsigned char " + array_name + + "[" + repr( len( the_array ) ) + "L] =\n" ) + write( " {\n" ) + + line = "" + comma = " " + col = 0 + + for value in the_array: + line += comma + line += "%3d" % ord( value ) + comma = "," + col += 1 + + if col == 16: + col = 0 + comma = ",\n " + + if len( line ) > 1024: + write( line ) + line = "" + + write( line + "\n };\n\n\n" ) + + +def main(): + """main program body""" + + if len( sys.argv ) != 2: + print __doc__ % sys.argv[0] + sys.exit( 1 ) + + file = open( sys.argv[1], "w\n" ) + write = file.write + + count_sid = len( sid_standard_names ) + + # `mac_extras' contains the list of glyph names in the Macintosh standard + # encoding which are not in the SID Standard Names. + # + mac_extras = filter_glyph_names( mac_standard_names, sid_standard_names ) + + # `base_list' contains the names of our final glyph names table. + # It consists of the `mac_extras' glyph names, followed by the SID + # standard names. + # + mac_extras_count = len( mac_extras ) + base_list = mac_extras + sid_standard_names + + write( "/***************************************************************************/\n" ) + write( "/* */\n" ) + + write( "/* %-71s*/\n" % os.path.basename( sys.argv[1] ) ) + + write( "/* */\n" ) + write( "/* PostScript glyph names. */\n" ) + write( "/* */\n" ) + write( "/* Copyright 2005, 2008, 2011 by */\n" ) + write( "/* David Turner, Robert Wilhelm, and Werner Lemberg. */\n" ) + write( "/* */\n" ) + write( "/* This file is part of the FreeType project, and may only be used, */\n" ) + write( "/* modified, and distributed under the terms of the FreeType project */\n" ) + write( "/* license, LICENSE.TXT. By continuing to use, modify, or distribute */\n" ) + write( "/* this file you indicate that you have read the license and */\n" ) + write( "/* understand and accept it fully. */\n" ) + write( "/* */\n" ) + write( "/***************************************************************************/\n" ) + write( "\n" ) + write( "\n" ) + write( " /* This file has been generated automatically -- do not edit! */\n" ) + write( "\n" ) + write( "\n" ) + + # dump final glyph list (mac extras + sid standard names) + # + st = StringTable( base_list, "ft_standard_glyph_names" ) + + st.dump( file ) + st.dump_sublist( file, "ft_mac_names", + "FT_NUM_MAC_NAMES", mac_standard_names ) + st.dump_sublist( file, "ft_sid_names", + "FT_NUM_SID_NAMES", sid_standard_names ) + + dump_encoding( file, "t1_standard_encoding", t1_standard_encoding ) + dump_encoding( file, "t1_expert_encoding", t1_expert_encoding ) + + # dump the AGL in its compressed form + # + agl_glyphs, agl_values = adobe_glyph_values() + dict = StringNode( "", 0 ) + + for g in range( len( agl_glyphs ) ): + dict.add( agl_glyphs[g], eval( "0x" + agl_values[g] ) ) + + dict = dict.optimize() + dict_len = dict.locate( 0 ) + dict_array = dict.store( "" ) + + write( """\ + /* + * This table is a compressed version of the Adobe Glyph List (AGL), + * optimized for efficient searching. It has been generated by the + * `glnames.py' python script located in the `src/tools' directory. + * + * The lookup function to get the Unicode value for a given string + * is defined below the table. + */ + +#ifdef FT_CONFIG_OPTION_ADOBE_GLYPH_LIST + +""" ) + + dump_array( dict_array, write, "ft_adobe_glyph_list" ) + + # write the lookup routine now + # + write( """\ + /* + * This function searches the compressed table efficiently. + */ + static unsigned long + ft_get_adobe_glyph_index( const char* name, + const char* limit ) + { + int c = 0; + int count, min, max; + const unsigned char* p = ft_adobe_glyph_list; + + + if ( name == 0 || name >= limit ) + goto NotFound; + + c = *name++; + count = p[1]; + p += 2; + + min = 0; + max = count; + + while ( min < max ) + { + int mid = ( min + max ) >> 1; + const unsigned char* q = p + mid * 2; + int c2; + + + q = ft_adobe_glyph_list + ( ( (int)q[0] << 8 ) | q[1] ); + + c2 = q[0] & 127; + if ( c2 == c ) + { + p = q; + goto Found; + } + if ( c2 < c ) + min = mid + 1; + else + max = mid; + } + goto NotFound; + + Found: + for (;;) + { + /* assert (*p & 127) == c */ + + if ( name >= limit ) + { + if ( (p[0] & 128) == 0 && + (p[1] & 128) != 0 ) + return (unsigned long)( ( (int)p[2] << 8 ) | p[3] ); + + goto NotFound; + } + c = *name++; + if ( p[0] & 128 ) + { + p++; + if ( c != (p[0] & 127) ) + goto NotFound; + + continue; + } + + p++; + count = p[0] & 127; + if ( p[0] & 128 ) + p += 2; + + p++; + + for ( ; count > 0; count--, p += 2 ) + { + int offset = ( (int)p[0] << 8 ) | p[1]; + const unsigned char* q = ft_adobe_glyph_list + offset; + + if ( c == ( q[0] & 127 ) ) + { + p = q; + goto NextIter; + } + } + goto NotFound; + + NextIter: + ; + } + + NotFound: + return 0; + } + +#endif /* FT_CONFIG_OPTION_ADOBE_GLYPH_LIST */ + +""" ) + + if 0: # generate unit test, or don't + # + # now write the unit test to check that everything works OK + # + write( "#ifdef TEST\n\n" ) + + write( "static const char* const the_names[] = {\n" ) + for name in agl_glyphs: + write( ' "' + name + '",\n' ) + write( " 0\n};\n" ) + + write( "static const unsigned long the_values[] = {\n" ) + for val in agl_values: + write( ' 0x' + val + ',\n' ) + write( " 0\n};\n" ) + + write( """ +#include +#include + + int + main( void ) + { + int result = 0; + const char* const* names = the_names; + const unsigned long* values = the_values; + + + for ( ; *names; names++, values++ ) + { + const char* name = *names; + unsigned long reference = *values; + unsigned long value; + + + value = ft_get_adobe_glyph_index( name, name + strlen( name ) ); + if ( value != reference ) + { + result = 1; + fprintf( stderr, "name '%s' => %04x instead of %04x\\n", + name, value, reference ); + } + } + + return result; + } +""" ) + + write( "#endif /* TEST */\n" ) + + write("\n/* END */\n") + + +# Now run the main routine +# +main() + + +# END diff --git a/src/tools/test_afm.c b/src/tools/test_afm.c new file mode 100644 index 0000000..f5f9936 --- /dev/null +++ b/src/tools/test_afm.c @@ -0,0 +1,157 @@ +/* + * gcc -DFT2_BUILD_LIBRARY -I../../include -o test_afm test_afm.c \ + * -L../../objs/.libs -lfreetype -lz -static + */ +#include +#include FT_FREETYPE_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + void dump_fontinfo( AFM_FontInfo fi ) + { + FT_Int i; + + + printf( "This AFM is for %sCID font.\n\n", + ( fi->IsCIDFont ) ? "" : "non-" ); + + printf( "FontBBox: %.2f %.2f %.2f %.2f\n", fi->FontBBox.xMin / 65536., + fi->FontBBox.yMin / 65536., + fi->FontBBox.xMax / 65536., + fi->FontBBox.yMax / 65536. ); + printf( "Ascender: %.2f\n", fi->Ascender / 65536. ); + printf( "Descender: %.2f\n\n", fi->Descender / 65536. ); + + if ( fi->NumTrackKern ) + printf( "There are %d sets of track kernings:\n", + fi->NumTrackKern ); + else + printf( "There is no track kerning.\n" ); + + for ( i = 0; i < fi->NumTrackKern; i++ ) + { + AFM_TrackKern tk = fi->TrackKerns + i; + + + printf( "\t%2d: %5.2f %5.2f %5.2f %5.2f\n", tk->degree, + tk->min_ptsize / 65536., + tk->min_kern / 65536., + tk->max_ptsize / 65536., + tk->max_kern / 65536. ); + } + + printf( "\n" ); + + if ( fi->NumKernPair ) + printf( "There are %d kerning pairs:\n", + fi->NumKernPair ); + else + printf( "There is no kerning pair.\n" ); + + for ( i = 0; i < fi->NumKernPair; i++ ) + { + AFM_KernPair kp = fi->KernPairs + i; + + + printf( "\t%3d + %3d => (%4d, %4d)\n", kp->index1, + kp->index2, + kp->x, + kp->y ); + } + + } + + int + dummy_get_index( const char* name, + FT_Offset len, + void* user_data ) + { + if ( len ) + return name[0]; + else + return 0; + } + + FT_Error + parse_afm( FT_Library library, + FT_Stream stream, + AFM_FontInfo fi ) + { + PSAux_Service psaux; + AFM_ParserRec parser; + FT_Error error = FT_Err_Ok; + + + psaux = (PSAux_Service)FT_Get_Module_Interface( library, "psaux" ); + if ( !psaux || !psaux->afm_parser_funcs ) + return -1; + + error = FT_Stream_EnterFrame( stream, stream->size ); + if ( error ) + return error; + + error = psaux->afm_parser_funcs->init( &parser, + library->memory, + stream->cursor, + stream->limit ); + if ( error ) + return error; + + parser.FontInfo = fi; + parser.get_index = dummy_get_index; + + error = psaux->afm_parser_funcs->parse( &parser ); + + psaux->afm_parser_funcs->done( &parser ); + + return error; + } + + + int main( int argc, + char** argv ) + { + FT_Library library; + FT_StreamRec stream; + FT_Error error = FT_Err_Ok; + AFM_FontInfoRec fi; + + + if ( argc < 2 ) + return FT_Err_Invalid_Argument; + + error = FT_Init_FreeType( &library ); + if ( error ) + return error; + + FT_ZERO( &stream ); + error = FT_Stream_Open( &stream, argv[1] ); + if ( error ) + goto Exit; + stream.memory = library->memory; + + FT_ZERO( &fi ); + error = parse_afm( library, &stream, &fi ); + + if ( !error ) + { + FT_Memory memory = library->memory; + + + dump_fontinfo( &fi ); + + if ( fi.KernPairs ) + FT_FREE( fi.KernPairs ); + if ( fi.TrackKerns ) + FT_FREE( fi.TrackKerns ); + } + else + printf( "parse error\n" ); + + FT_Stream_Close( &stream ); + + Exit: + FT_Done_FreeType( library ); + + return error; + } diff --git a/src/tools/test_bbox.c b/src/tools/test_bbox.c new file mode 100644 index 0000000..e085c5b --- /dev/null +++ b/src/tools/test_bbox.c @@ -0,0 +1,160 @@ +#include +#include FT_FREETYPE_H +#include FT_BBOX_H + + +#include /* for clock() */ + +/* SunOS 4.1.* does not define CLOCKS_PER_SEC, so include */ +/* to get the HZ macro which is the equivalent. */ +#if defined(__sun__) && !defined(SVR4) && !defined(__SVR4) +#include +#define CLOCKS_PER_SEC HZ +#endif + + static long + get_time( void ) + { + return clock() * 10000L / CLOCKS_PER_SEC; + } + + + + + /* test bbox computations */ + +#define XSCALE 65536 +#define XX(x) ((FT_Pos)(x*XSCALE)) +#define XVEC(x,y) { XX(x), XX(y) } +#define XVAL(x) ((x)/(1.0*XSCALE)) + + /* dummy outline #1 */ + static FT_Vector dummy_vec_1[4] = + { +#if 1 + XVEC( 408.9111, 535.3164 ), + XVEC( 455.8887, 634.396 ), + XVEC( -37.8765, 786.2207 ), + XVEC( 164.6074, 535.3164 ) +#else + { (FT_Int32)0x0198E93DL , (FT_Int32)0x021750FFL }, /* 408.9111, 535.3164 */ + { (FT_Int32)0x01C7E312L , (FT_Int32)0x027A6560L }, /* 455.8887, 634.3960 */ + { (FT_Int32)0xFFDA1F9EL , (FT_Int32)0x0312387FL }, /* -37.8765, 786.2207 */ + { (FT_Int32)0x00A49B7EL , (FT_Int32)0x021750FFL } /* 164.6074, 535.3164 */ +#endif + }; + + static char dummy_tag_1[4] = + { + FT_CURVE_TAG_ON, + FT_CURVE_TAG_CUBIC, + FT_CURVE_TAG_CUBIC, + FT_CURVE_TAG_ON + }; + + static short dummy_contour_1[1] = + { + 3 + }; + + static FT_Outline dummy_outline_1 = + { + 1, + 4, + dummy_vec_1, + dummy_tag_1, + dummy_contour_1, + 0 + }; + + + /* dummy outline #2 */ + static FT_Vector dummy_vec_2[4] = + { + XVEC( 100.0, 100.0 ), + XVEC( 100.0, 200.0 ), + XVEC( 200.0, 200.0 ), + XVEC( 200.0, 133.0 ) + }; + + static FT_Outline dummy_outline_2 = + { + 1, + 4, + dummy_vec_2, + dummy_tag_1, + dummy_contour_1, + 0 + }; + + + static void + dump_outline( FT_Outline* outline ) + { + FT_BBox bbox; + + /* compute and display cbox */ + FT_Outline_Get_CBox( outline, &bbox ); + printf( "cbox = [%.2f %.2f %.2f %.2f]\n", + XVAL( bbox.xMin ), + XVAL( bbox.yMin ), + XVAL( bbox.xMax ), + XVAL( bbox.yMax ) ); + + /* compute and display bbox */ + FT_Outline_Get_BBox( outline, &bbox ); + printf( "bbox = [%.2f %.2f %.2f %.2f]\n", + XVAL( bbox.xMin ), + XVAL( bbox.yMin ), + XVAL( bbox.xMax ), + XVAL( bbox.yMax ) ); + } + + + + static void + profile_outline( FT_Outline* outline, + long repeat ) + { + FT_BBox bbox; + long count; + long time0; + + time0 = get_time(); + for ( count = repeat; count > 0; count-- ) + FT_Outline_Get_CBox( outline, &bbox ); + + time0 = get_time() - time0; + printf( "time = %5.2f cbox = [%.2f %.2f %.2f %.2f]\n", + ((double)time0/10000.0), + XVAL( bbox.xMin ), + XVAL( bbox.yMin ), + XVAL( bbox.xMax ), + XVAL( bbox.yMax ) ); + + + time0 = get_time(); + for ( count = repeat; count > 0; count-- ) + FT_Outline_Get_BBox( outline, &bbox ); + + time0 = get_time() - time0; + printf( "time = %5.2f bbox = [%.2f %.2f %.2f %.2f]\n", + ((double)time0/10000.0), + XVAL( bbox.xMin ), + XVAL( bbox.yMin ), + XVAL( bbox.xMax ), + XVAL( bbox.yMax ) ); + } + +#define REPEAT 100000L + + int main( int argc, char** argv ) + { + printf( "outline #1\n" ); + profile_outline( &dummy_outline_1, REPEAT ); + + printf( "outline #2\n" ); + profile_outline( &dummy_outline_2, REPEAT ); + return 0; + } + diff --git a/src/tools/test_trig.c b/src/tools/test_trig.c new file mode 100644 index 0000000..8c8a544 --- /dev/null +++ b/src/tools/test_trig.c @@ -0,0 +1,236 @@ +#include +#include FT_FREETYPE_H +#include FT_TRIGONOMETRY_H + +#include +#include + +#define PI 3.14159265358979323846 +#define SPI (PI/FT_ANGLE_PI) + +/* the precision in 16.16 fixed float points of the checks. Expect */ +/* between 2 and 5 noise LSB bits during operations, due to */ +/* rounding errors.. */ +#define THRESHOLD 64 + + static error = 0; + + static void + test_cos( void ) + { + FT_Fixed f1, f2; + double d1, d2; + int i; + + for ( i = 0; i < FT_ANGLE_2PI; i += 0x10000 ) + { + f1 = FT_Cos(i); + d1 = f1/65536.0; + d2 = cos( i*SPI ); + f2 = (FT_Fixed)(d2*65536.0); + + if ( abs( f2-f1 ) > THRESHOLD ) + { + error = 1; + printf( "FT_Cos[%3d] = %.7f cos[%3d] = %.7f\n", + (i >> 16), f1/65536.0, (i >> 16), d2 ); + } + } + } + + + + static void + test_sin( void ) + { + FT_Fixed f1, f2; + double d1, d2; + int i; + + for ( i = 0; i < FT_ANGLE_2PI; i += 0x10000 ) + { + f1 = FT_Sin(i); + d1 = f1/65536.0; + d2 = sin( i*SPI ); + f2 = (FT_Fixed)(d2*65536.0); + + if ( abs( f2-f1 ) > THRESHOLD ) + { + error = 1; + printf( "FT_Sin[%3d] = %.7f sin[%3d] = %.7f\n", + (i >> 16), f1/65536.0, (i >> 16), d2 ); + } + } + } + + + static void + test_tan( void ) + { + FT_Fixed f1, f2; + double d1, d2; + int i; + + for ( i = 0; i < FT_ANGLE_PI2-0x2000000; i += 0x10000 ) + { + f1 = FT_Tan(i); + d1 = f1/65536.0; + d2 = tan( i*SPI ); + f2 = (FT_Fixed)(d2*65536.0); + + if ( abs( f2-f1 ) > THRESHOLD ) + { + error = 1; + printf( "FT_Tan[%3d] = %.7f tan[%3d] = %.7f\n", + (i >> 16), f1/65536.0, (i >> 16), d2 ); + } + } + } + + + static void + test_atan2( void ) + { + FT_Fixed c2, s2; + double l, a, c1, s1; + int i, j; + + for ( i = 0; i < FT_ANGLE_2PI; i += 0x10000 ) + { + l = 5.0; + a = i*SPI; + + c1 = l * cos(a); + s1 = l * sin(a); + + c2 = (FT_Fixed)(c1*65536.0); + s2 = (FT_Fixed)(s1*65536.0); + + j = FT_Atan2( c2, s2 ); + if ( j < 0 ) + j += FT_ANGLE_2PI; + + if ( abs( i - j ) > 1 ) + { + printf( "FT_Atan2( %.7f, %.7f ) = %.5f, atan = %.5f\n", + c2/65536.0, s2/65536.0, j/65536.0, i/65536.0 ); + } + } + } + + static void + test_unit( void ) + { + FT_Vector v; + double a, c1, s1; + FT_Fixed c2, s2; + int i; + + for ( i = 0; i < FT_ANGLE_2PI; i += 0x10000 ) + { + FT_Vector_Unit( &v, i ); + a = ( i*SPI ); + c1 = cos(a); + s1 = sin(a); + c2 = (FT_Fixed)(c1*65536.0); + s2 = (FT_Fixed)(s1*65536.0); + + if ( abs( v.x-c2 ) > THRESHOLD || + abs( v.y-s2 ) > THRESHOLD ) + { + error = 1; + printf( "FT_Vector_Unit[%3d] = ( %.7f, %.7f ) vec = ( %.7f, %.7f )\n", + (i >> 16), + v.x/65536.0, v.y/65536.0, + c1, s1 ); + } + } + } + + + static void + test_length( void ) + { + FT_Vector v; + FT_Fixed l, l2; + int i; + + for ( i = 0; i < FT_ANGLE_2PI; i += 0x10000 ) + { + l = (FT_Fixed)(500.0*65536.0); + v.x = (FT_Fixed)( l * cos( i*SPI ) ); + v.y = (FT_Fixed)( l * sin( i*SPI ) ); + l2 = FT_Vector_Length( &v ); + + if ( abs( l2-l ) > THRESHOLD ) + { + error = 1; + printf( "FT_Length( %.7f, %.7f ) = %.5f, length = %.5f\n", + v.x/65536.0, v.y/65536.0, l2/65536.0, l/65536.0 ); + } + } + } + + + static void + test_rotate( void ) + { + FT_Fixed c2, s2, c4, s4; + FT_Vector v; + double l, ra, a, c1, s1, cra, sra, c3, s3; + int i, j, rotate; + + for ( rotate = 0; rotate < FT_ANGLE_2PI; rotate += 0x10000 ) + { + ra = rotate*SPI; + cra = cos( ra ); + sra = sin( ra ); + + for ( i = 0; i < FT_ANGLE_2PI; i += 0x10000 ) + { + l = 500.0; + a = i*SPI; + + c1 = l * cos(a); + s1 = l * sin(a); + + v.x = c2 = (FT_Fixed)(c1*65536.0); + v.y = s2 = (FT_Fixed)(s1*65536.0); + + FT_Vector_Rotate( &v, rotate ); + + c3 = c1 * cra - s1 * sra; + s3 = c1 * sra + s1 * cra; + + c4 = (FT_Fixed)(c3*65536.0); + s4 = (FT_Fixed)(s3*65536.0); + + if ( abs( c4 - v.x ) > THRESHOLD || + abs( s4 - v.y ) > THRESHOLD ) + { + error = 1; + printf( "FT_Rotate( (%.7f,%.7f), %.5f ) = ( %.7f, %.7f ), rot = ( %.7f, %.7f )\n", + c1, s1, ra, + c2/65536.0, s2/65536.0, + c4/65536.0, s4/65536.0 ); + } + } + } + } + + + int main( void ) + { + test_cos(); + test_sin(); + test_tan(); + test_atan2(); + test_unit(); + test_length(); + test_rotate(); + + if (!error) + printf( "trigonometry test ok !\n" ); + + return !error; + } diff --git a/src/truetype/Jamfile b/src/truetype/Jamfile new file mode 100644 index 0000000..a8cccfe --- /dev/null +++ b/src/truetype/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/truetype Jamfile +# +# Copyright 2001, 2004 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) truetype ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = ttdriver ttobjs ttpload ttgload ttinterp ttgxvar ttpic ; + } + else + { + _sources = truetype ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/truetype Jamfile diff --git a/src/truetype/module.mk b/src/truetype/module.mk new file mode 100644 index 0000000..baee81a --- /dev/null +++ b/src/truetype/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 TrueType module definition +# + + +# Copyright 1996-2000, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += TRUETYPE_DRIVER + +define TRUETYPE_DRIVER +$(OPEN_DRIVER) FT_Driver_ClassRec, tt_driver_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)truetype $(ECHO_DRIVER_DESC)Windows/Mac font files with extension *.ttf or *.ttc$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/truetype/rules.mk b/src/truetype/rules.mk new file mode 100644 index 0000000..507ef16 --- /dev/null +++ b/src/truetype/rules.mk @@ -0,0 +1,73 @@ +# +# FreeType 2 TrueType driver configuration rules +# + + +# Copyright 1996-2000, 2001, 2003, 2004, 2011 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# TrueType driver directory +# +TT_DIR := $(SRC_DIR)/truetype + + +# compilation flags for the driver +# +TT_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(TT_DIR)) + + +# TrueType driver sources (i.e., C files) +# +TT_DRV_SRC := $(TT_DIR)/ttdriver.c \ + $(TT_DIR)/ttgload.c \ + $(TT_DIR)/ttgxvar.c \ + $(TT_DIR)/ttinterp.c \ + $(TT_DIR)/ttobjs.c \ + $(TT_DIR)/ttpic.c \ + $(TT_DIR)/ttpload.c + +# TrueType driver headers +# +TT_DRV_H := $(TT_DRV_SRC:%.c=%.h) \ + $(TT_DIR)/tterrors.h + + +# TrueType driver object(s) +# +# TT_DRV_OBJ_M is used during `multi' builds +# TT_DRV_OBJ_S is used during `single' builds +# +TT_DRV_OBJ_M := $(TT_DRV_SRC:$(TT_DIR)/%.c=$(OBJ_DIR)/%.$O) +TT_DRV_OBJ_S := $(OBJ_DIR)/truetype.$O + +# TrueType driver source file for single build +# +TT_DRV_SRC_S := $(TT_DIR)/truetype.c + + +# TrueType driver - single object +# +$(TT_DRV_OBJ_S): $(TT_DRV_SRC_S) $(TT_DRV_SRC) $(FREETYPE_H) $(TT_DRV_H) + $(TT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(TT_DRV_SRC_S)) + + +# driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(TT_DIR)/%.c $(FREETYPE_H) $(TT_DRV_H) + $(TT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(TT_DRV_OBJ_S) +DRV_OBJS_M += $(TT_DRV_OBJ_M) + + +# EOF diff --git a/src/truetype/truetype.c b/src/truetype/truetype.c new file mode 100644 index 0000000..4bd1209 --- /dev/null +++ b/src/truetype/truetype.c @@ -0,0 +1,37 @@ +/***************************************************************************/ +/* */ +/* truetype.c */ +/* */ +/* FreeType TrueType driver component (body only). */ +/* */ +/* Copyright 1996-2001, 2004, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include +#include "ttpic.c" +#include "ttdriver.c" /* driver interface */ +#include "ttpload.c" /* tables loader */ +#include "ttgload.c" /* glyph loader */ +#include "ttobjs.c" /* object manager */ + +#ifdef TT_USE_BYTECODE_INTERPRETER +#include "ttinterp.c" +#endif + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include "ttgxvar.c" /* gx distortable font */ +#endif + + +/* END */ diff --git a/src/truetype/ttdriver.c b/src/truetype/ttdriver.c new file mode 100644 index 0000000..3669d45 --- /dev/null +++ b/src/truetype/ttdriver.c @@ -0,0 +1,502 @@ +/***************************************************************************/ +/* */ +/* ttdriver.c */ +/* */ +/* TrueType font driver implementation (body). */ +/* */ +/* Copyright 1996-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include FT_SERVICE_XFREE86_NAME_H + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include FT_MULTIPLE_MASTERS_H +#include FT_SERVICE_MULTIPLE_MASTERS_H +#endif + +#include FT_SERVICE_TRUETYPE_ENGINE_H +#include FT_SERVICE_TRUETYPE_GLYF_H + +#include "ttdriver.h" +#include "ttgload.h" +#include "ttpload.h" + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include "ttgxvar.h" +#endif + +#include "tterrors.h" + +#include "ttpic.h" + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttdriver + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** F A C E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#undef PAIR_TAG +#define PAIR_TAG( left, right ) ( ( (FT_ULong)left << 16 ) | \ + (FT_ULong)right ) + + + /*************************************************************************/ + /* */ + /* */ + /* tt_get_kerning */ + /* */ + /* */ + /* A driver method used to return the kerning vector between two */ + /* glyphs of the same face. */ + /* */ + /* */ + /* face :: A handle to the source face object. */ + /* */ + /* left_glyph :: The index of the left glyph in the kern pair. */ + /* */ + /* right_glyph :: The index of the right glyph in the kern pair. */ + /* */ + /* */ + /* kerning :: The kerning vector. This is in font units for */ + /* scalable formats, and in pixels for fixed-sizes */ + /* formats. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + /* */ + /* Only horizontal layouts (left-to-right & right-to-left) are */ + /* supported by this function. Other layouts, or more sophisticated */ + /* kernings, are out of scope of this method (the basic driver */ + /* interface is meant to be simple). */ + /* */ + /* They can be implemented by format-specific interfaces. */ + /* */ + static FT_Error + tt_get_kerning( FT_Face ttface, /* TT_Face */ + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_Vector* kerning ) + { + TT_Face face = (TT_Face)ttface; + SFNT_Service sfnt = (SFNT_Service)face->sfnt; + + + kerning->x = 0; + kerning->y = 0; + + if ( sfnt ) + kerning->x = sfnt->get_kerning( face, left_glyph, right_glyph ); + + return 0; + } + + +#undef PAIR_TAG + + + static FT_Error + tt_get_advances( FT_Face ttface, + FT_UInt start, + FT_UInt count, + FT_Int32 flags, + FT_Fixed *advances ) + { + FT_UInt nn; + TT_Face face = (TT_Face) ttface; + + + /* XXX: TODO: check for sbits */ + + if ( flags & FT_LOAD_VERTICAL_LAYOUT ) + { + for ( nn = 0; nn < count; nn++ ) + { + FT_Short tsb; + FT_UShort ah; + + + TT_Get_VMetrics( face, start + nn, &tsb, &ah ); + advances[nn] = ah; + } + } + else + { + for ( nn = 0; nn < count; nn++ ) + { + FT_Short lsb; + FT_UShort aw; + + + TT_Get_HMetrics( face, start + nn, &lsb, &aw ); + advances[nn] = aw; + } + } + + return TT_Err_Ok; + } + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** S I Z E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + static FT_Error + tt_size_select( FT_Size size, + FT_ULong strike_index ) + { + TT_Face ttface = (TT_Face)size->face; + TT_Size ttsize = (TT_Size)size; + FT_Error error = TT_Err_Ok; + + + ttsize->strike_index = strike_index; + + if ( FT_IS_SCALABLE( size->face ) ) + { + /* use the scaled metrics, even when tt_size_reset fails */ + FT_Select_Metrics( size->face, strike_index ); + + tt_size_reset( ttsize ); + } + else + { + SFNT_Service sfnt = (SFNT_Service) ttface->sfnt; + FT_Size_Metrics* metrics = &size->metrics; + + + error = sfnt->load_strike_metrics( ttface, strike_index, metrics ); + if ( error ) + ttsize->strike_index = 0xFFFFFFFFUL; + } + + return error; + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + + static FT_Error + tt_size_request( FT_Size size, + FT_Size_Request req ) + { + TT_Size ttsize = (TT_Size)size; + FT_Error error = TT_Err_Ok; + + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + if ( FT_HAS_FIXED_SIZES( size->face ) ) + { + TT_Face ttface = (TT_Face)size->face; + SFNT_Service sfnt = (SFNT_Service) ttface->sfnt; + FT_ULong strike_index; + + + error = sfnt->set_sbit_strike( ttface, req, &strike_index ); + + if ( error ) + ttsize->strike_index = 0xFFFFFFFFUL; + else + return tt_size_select( size, strike_index ); + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + FT_Request_Metrics( size->face, req ); + + if ( FT_IS_SCALABLE( size->face ) ) + { + error = tt_size_reset( ttsize ); + ttsize->root.metrics = ttsize->metrics; + } + + return error; + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_glyph_load */ + /* */ + /* */ + /* A driver method used to load a glyph within a given glyph slot. */ + /* */ + /* */ + /* slot :: A handle to the target slot object where the glyph */ + /* will be loaded. */ + /* */ + /* size :: A handle to the source face size at which the glyph */ + /* must be scaled, loaded, etc. */ + /* */ + /* glyph_index :: The index of the glyph in the font file. */ + /* */ + /* load_flags :: A flag indicating what to load for this glyph. The */ + /* FT_LOAD_XXX constants can be used to control the */ + /* glyph loading process (e.g., whether the outline */ + /* should be scaled, whether to load bitmaps or not, */ + /* whether to hint the outline, etc). */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + tt_glyph_load( FT_GlyphSlot ttslot, /* TT_GlyphSlot */ + FT_Size ttsize, /* TT_Size */ + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + TT_GlyphSlot slot = (TT_GlyphSlot)ttslot; + TT_Size size = (TT_Size)ttsize; + FT_Face face = ttslot->face; + FT_Error error; + + + if ( !slot ) + return TT_Err_Invalid_Slot_Handle; + + if ( !size ) + return TT_Err_Invalid_Size_Handle; + + if ( !face ) + return TT_Err_Invalid_Argument; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + if ( glyph_index >= (FT_UInt)face->num_glyphs && + !face->internal->incremental_interface ) +#else + if ( glyph_index >= (FT_UInt)face->num_glyphs ) +#endif + return TT_Err_Invalid_Argument; + + if ( load_flags & FT_LOAD_NO_HINTING ) + { + /* both FT_LOAD_NO_HINTING and FT_LOAD_NO_AUTOHINT */ + /* are necessary to disable hinting for tricky fonts */ + + if ( FT_IS_TRICKY( face ) ) + load_flags &= ~FT_LOAD_NO_HINTING; + + if ( load_flags & FT_LOAD_NO_AUTOHINT ) + load_flags |= FT_LOAD_NO_HINTING; + } + + if ( load_flags & ( FT_LOAD_NO_RECURSE | FT_LOAD_NO_SCALE ) ) + { + load_flags |= FT_LOAD_NO_BITMAP | FT_LOAD_NO_SCALE; + + if ( !FT_IS_TRICKY( face ) ) + load_flags |= FT_LOAD_NO_HINTING; + } + + /* now load the glyph outline if necessary */ + error = TT_Load_Glyph( size, slot, glyph_index, load_flags ); + + /* force drop-out mode to 2 - irrelevant now */ + /* slot->outline.dropout_mode = 2; */ + + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** D R I V E R I N T E R F A C E ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_DEFINE_SERVICE_MULTIMASTERSREC(tt_service_gx_multi_masters, + (FT_Get_MM_Func) NULL, + (FT_Set_MM_Design_Func) NULL, + (FT_Set_MM_Blend_Func) TT_Set_MM_Blend, + (FT_Get_MM_Var_Func) TT_Get_MM_Var, + (FT_Set_Var_Design_Func)TT_Set_Var_Design + ) +#endif + + static const FT_Service_TrueTypeEngineRec tt_service_truetype_engine = + { +#ifdef TT_USE_BYTECODE_INTERPRETER + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + FT_TRUETYPE_ENGINE_TYPE_UNPATENTED +#else + FT_TRUETYPE_ENGINE_TYPE_PATENTED +#endif + +#else /* !TT_USE_BYTECODE_INTERPRETER */ + + FT_TRUETYPE_ENGINE_TYPE_NONE + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + }; + + FT_DEFINE_SERVICE_TTGLYFREC(tt_service_truetype_glyf, + (TT_Glyf_GetLocationFunc)tt_face_get_location + ) + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_DEFINE_SERVICEDESCREC4(tt_services, + FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_TRUETYPE, + FT_SERVICE_ID_MULTI_MASTERS, &FT_TT_SERVICE_GX_MULTI_MASTERS_GET, + FT_SERVICE_ID_TRUETYPE_ENGINE, &tt_service_truetype_engine, + FT_SERVICE_ID_TT_GLYF, &FT_TT_SERVICE_TRUETYPE_GLYF_GET + ) +#else + FT_DEFINE_SERVICEDESCREC3(tt_services, + FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_TRUETYPE, + FT_SERVICE_ID_TRUETYPE_ENGINE, &tt_service_truetype_engine, + FT_SERVICE_ID_TT_GLYF, &FT_TT_SERVICE_TRUETYPE_GLYF_GET + ) +#endif + + FT_CALLBACK_DEF( FT_Module_Interface ) + tt_get_interface( FT_Module driver, /* TT_Driver */ + const char* tt_interface ) + { + FT_Library library; + FT_Module_Interface result; + FT_Module sfntd; + SFNT_Service sfnt; + + + /* FT_TT_SERVICES_GET derefers `library' in PIC mode */ +#ifdef FT_CONFIG_OPTION_PIC + if ( !driver ) + return NULL; + library = driver->library; + if ( !library ) + return NULL; +#endif + + result = ft_service_list_lookup( FT_TT_SERVICES_GET, tt_interface ); + if ( result != NULL ) + return result; + +#ifndef FT_CONFIG_OPTION_PIC + if ( !driver ) + return NULL; + library = driver->library; + if ( !library ) + return NULL; +#endif + + /* only return the default interface from the SFNT module */ + sfntd = FT_Get_Module( library, "sfnt" ); + if ( sfntd ) + { + sfnt = (SFNT_Service)( sfntd->clazz->module_interface ); + if ( sfnt ) + return sfnt->get_interface( driver, tt_interface ); + } + + return 0; + } + + + /* The FT_DriverInterface structure is defined in ftdriver.h. */ + +#ifdef TT_USE_BYTECODE_INTERPRETER +#define TT_HINTER_FLAG FT_MODULE_DRIVER_HAS_HINTER +#else +#define TT_HINTER_FLAG 0 +#endif + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS +#define TT_SIZE_SELECT tt_size_select +#else +#define TT_SIZE_SELECT 0 +#endif + + FT_DEFINE_DRIVER( tt_driver_class, + + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_SCALABLE | + TT_HINTER_FLAG, + + sizeof ( TT_DriverRec ), + + "truetype", /* driver name */ + 0x10000L, /* driver version == 1.0 */ + 0x20000L, /* driver requires FreeType 2.0 or above */ + + (void*)0, /* driver specific interface */ + + tt_driver_init, + tt_driver_done, + tt_get_interface, + + sizeof ( TT_FaceRec ), + sizeof ( TT_SizeRec ), + sizeof ( FT_GlyphSlotRec ), + + tt_face_init, + tt_face_done, + tt_size_init, + tt_size_done, + tt_slot_init, + 0, /* FT_Slot_DoneFunc */ + + ft_stub_set_char_sizes, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + ft_stub_set_pixel_sizes, /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + tt_glyph_load, + + tt_get_kerning, + 0, /* FT_Face_AttachFunc */ + tt_get_advances, + + tt_size_request, + TT_SIZE_SELECT + ) + + +/* END */ diff --git a/src/truetype/ttdriver.h b/src/truetype/ttdriver.h new file mode 100644 index 0000000..aae00f2 --- /dev/null +++ b/src/truetype/ttdriver.h @@ -0,0 +1,38 @@ +/***************************************************************************/ +/* */ +/* ttdriver.h */ +/* */ +/* High-level TrueType driver interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTDRIVER_H__ +#define __TTDRIVER_H__ + + +#include +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + + + FT_DECLARE_DRIVER( tt_driver_class ) + + +FT_END_HEADER + +#endif /* __TTDRIVER_H__ */ + + +/* END */ diff --git a/src/truetype/tterrors.h b/src/truetype/tterrors.h new file mode 100644 index 0000000..78d138f --- /dev/null +++ b/src/truetype/tterrors.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* tterrors.h */ +/* */ +/* TrueType error codes (specification only). */ +/* */ +/* Copyright 2001, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the TrueType error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __TTERRORS_H__ +#define __TTERRORS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX TT_Err_ +#define FT_ERR_BASE FT_Mod_Err_TrueType + +#include FT_ERRORS_H + +#endif /* __TTERRORS_H__ */ + +/* END */ diff --git a/src/truetype/ttgload.c b/src/truetype/ttgload.c new file mode 100644 index 0000000..ce8c888 --- /dev/null +++ b/src/truetype/ttgload.c @@ -0,0 +1,2111 @@ +/***************************************************************************/ +/* */ +/* ttgload.c */ +/* */ +/* TrueType Glyph Loader (body). */ +/* */ +/* Copyright 1996-2012 */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include FT_TRUETYPE_TAGS_H +#include FT_OUTLINE_H + +#include "ttgload.h" +#include "ttpload.h" + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include "ttgxvar.h" +#endif + +#include "tterrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttgload + + + /*************************************************************************/ + /* */ + /* Composite glyph flags. */ + /* */ +#define ARGS_ARE_WORDS 0x0001 +#define ARGS_ARE_XY_VALUES 0x0002 +#define ROUND_XY_TO_GRID 0x0004 +#define WE_HAVE_A_SCALE 0x0008 +/* reserved 0x0010 */ +#define MORE_COMPONENTS 0x0020 +#define WE_HAVE_AN_XY_SCALE 0x0040 +#define WE_HAVE_A_2X2 0x0080 +#define WE_HAVE_INSTR 0x0100 +#define USE_MY_METRICS 0x0200 +#define OVERLAP_COMPOUND 0x0400 +#define SCALED_COMPONENT_OFFSET 0x0800 +#define UNSCALED_COMPONENT_OFFSET 0x1000 + + + /*************************************************************************/ + /* */ + /* Return the horizontal metrics in font units for a given glyph. */ + /* */ + FT_LOCAL_DEF( void ) + TT_Get_HMetrics( TT_Face face, + FT_UInt idx, + FT_Short* lsb, + FT_UShort* aw ) + { + ( (SFNT_Service)face->sfnt )->get_metrics( face, 0, idx, lsb, aw ); + + FT_TRACE5(( " advance width (font units): %d\n", *aw )); + FT_TRACE5(( " left side bearing (font units): %d\n", *lsb )); + } + + + /*************************************************************************/ + /* */ + /* Return the vertical metrics in font units for a given glyph. */ + /* Greg Hitchcock from Microsoft told us that if there were no `vmtx' */ + /* table, typoAscender/Descender from the `OS/2' table would be used */ + /* instead, and if there were no `OS/2' table, use ascender/descender */ + /* from the `hhea' table. But that is not what Microsoft's rasterizer */ + /* apparently does: It uses the ppem value as the advance height, and */ + /* sets the top side bearing to be zero. */ + /* */ + FT_LOCAL_DEF( void ) + TT_Get_VMetrics( TT_Face face, + FT_UInt idx, + FT_Short* tsb, + FT_UShort* ah ) + { + if ( face->vertical_info ) + ( (SFNT_Service)face->sfnt )->get_metrics( face, 1, idx, tsb, ah ); + +#if 1 /* Empirically determined, at variance with what MS said */ + + else + { + *tsb = 0; + *ah = face->root.units_per_EM; + } + +#else /* This is what MS said to do. It isn't what they do, however. */ + + else if ( face->os2.version != 0xFFFFU ) + { + *tsb = face->os2.sTypoAscender; + *ah = face->os2.sTypoAscender - face->os2.sTypoDescender; + } + else + { + *tsb = face->horizontal.Ascender; + *ah = face->horizontal.Ascender - face->horizontal.Descender; + } + +#endif + + FT_TRACE5(( " advance height (font units): %d\n", *ah )); + FT_TRACE5(( " top side bearing (font units): %d\n", *tsb )); + } + + + static void + tt_get_metrics( TT_Loader loader, + FT_UInt glyph_index ) + { + TT_Face face = (TT_Face)loader->face; + + FT_Short left_bearing = 0, top_bearing = 0; + FT_UShort advance_width = 0, advance_height = 0; + + + TT_Get_HMetrics( face, glyph_index, + &left_bearing, + &advance_width ); + TT_Get_VMetrics( face, glyph_index, + &top_bearing, + &advance_height ); + + loader->left_bearing = left_bearing; + loader->advance = advance_width; + loader->top_bearing = top_bearing; + loader->vadvance = advance_height; + + if ( !loader->linear_def ) + { + loader->linear_def = 1; + loader->linear = advance_width; + } + } + + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + static void + tt_get_metrics_incr_overrides( TT_Loader loader, + FT_UInt glyph_index ) + { + TT_Face face = (TT_Face)loader->face; + + FT_Short left_bearing = 0, top_bearing = 0; + FT_UShort advance_width = 0, advance_height = 0; + + + /* If this is an incrementally loaded font check whether there are */ + /* overriding metrics for this glyph. */ + if ( face->root.internal->incremental_interface && + face->root.internal->incremental_interface->funcs->get_glyph_metrics ) + { + FT_Incremental_MetricsRec metrics; + FT_Error error; + + + metrics.bearing_x = loader->left_bearing; + metrics.bearing_y = 0; + metrics.advance = loader->advance; + metrics.advance_v = 0; + + error = face->root.internal->incremental_interface->funcs->get_glyph_metrics( + face->root.internal->incremental_interface->object, + glyph_index, FALSE, &metrics ); + if ( error ) + goto Exit; + + left_bearing = (FT_Short)metrics.bearing_x; + advance_width = (FT_UShort)metrics.advance; + +#if 0 + + /* GWW: Do I do the same for vertical metrics? */ + metrics.bearing_x = 0; + metrics.bearing_y = loader->top_bearing; + metrics.advance = loader->vadvance; + + error = face->root.internal->incremental_interface->funcs->get_glyph_metrics( + face->root.internal->incremental_interface->object, + glyph_index, TRUE, &metrics ); + if ( error ) + goto Exit; + + top_bearing = (FT_Short)metrics.bearing_y; + advance_height = (FT_UShort)metrics.advance; + +#endif /* 0 */ + + loader->left_bearing = left_bearing; + loader->advance = advance_width; + loader->top_bearing = top_bearing; + loader->vadvance = advance_height; + + if ( !loader->linear_def ) + { + loader->linear_def = 1; + loader->linear = advance_width; + } + } + + Exit: + return; + } + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + + /*************************************************************************/ + /* */ + /* Translates an array of coordinates. */ + /* */ + static void + translate_array( FT_UInt n, + FT_Vector* coords, + FT_Pos delta_x, + FT_Pos delta_y ) + { + FT_UInt k; + + + if ( delta_x ) + for ( k = 0; k < n; k++ ) + coords[k].x += delta_x; + + if ( delta_y ) + for ( k = 0; k < n; k++ ) + coords[k].y += delta_y; + } + + +#undef IS_HINTED +#define IS_HINTED( flags ) ( ( flags & FT_LOAD_NO_HINTING ) == 0 ) + + + /*************************************************************************/ + /* */ + /* The following functions are used by default with TrueType fonts. */ + /* However, they can be replaced by alternatives if we need to support */ + /* TrueType-compressed formats (like MicroType) in the future. */ + /* */ + /*************************************************************************/ + + FT_CALLBACK_DEF( FT_Error ) + TT_Access_Glyph_Frame( TT_Loader loader, + FT_UInt glyph_index, + FT_ULong offset, + FT_UInt byte_count ) + { + FT_Error error; + FT_Stream stream = loader->stream; + + /* for non-debug mode */ + FT_UNUSED( glyph_index ); + + + FT_TRACE4(( "Glyph %ld\n", glyph_index )); + + /* the following line sets the `error' variable through macros! */ + if ( FT_STREAM_SEEK( offset ) || FT_FRAME_ENTER( byte_count ) ) + return error; + + loader->cursor = stream->cursor; + loader->limit = stream->limit; + + return TT_Err_Ok; + } + + + FT_CALLBACK_DEF( void ) + TT_Forget_Glyph_Frame( TT_Loader loader ) + { + FT_Stream stream = loader->stream; + + + FT_FRAME_EXIT(); + } + + + FT_CALLBACK_DEF( FT_Error ) + TT_Load_Glyph_Header( TT_Loader loader ) + { + FT_Byte* p = loader->cursor; + FT_Byte* limit = loader->limit; + + + if ( p + 10 > limit ) + return TT_Err_Invalid_Outline; + + loader->n_contours = FT_NEXT_SHORT( p ); + + loader->bbox.xMin = FT_NEXT_SHORT( p ); + loader->bbox.yMin = FT_NEXT_SHORT( p ); + loader->bbox.xMax = FT_NEXT_SHORT( p ); + loader->bbox.yMax = FT_NEXT_SHORT( p ); + + FT_TRACE5(( " # of contours: %d\n", loader->n_contours )); + FT_TRACE5(( " xMin: %4d xMax: %4d\n", loader->bbox.xMin, + loader->bbox.xMax )); + FT_TRACE5(( " yMin: %4d yMax: %4d\n", loader->bbox.yMin, + loader->bbox.yMax )); + loader->cursor = p; + + return TT_Err_Ok; + } + + + FT_CALLBACK_DEF( FT_Error ) + TT_Load_Simple_Glyph( TT_Loader load ) + { + FT_Error error; + FT_Byte* p = load->cursor; + FT_Byte* limit = load->limit; + FT_GlyphLoader gloader = load->gloader; + FT_Int n_contours = load->n_contours; + FT_Outline* outline; + TT_Face face = (TT_Face)load->face; + FT_UShort n_ins; + FT_Int n_points; + + FT_Byte *flag, *flag_limit; + FT_Byte c, count; + FT_Vector *vec, *vec_limit; + FT_Pos x; + FT_Short *cont, *cont_limit, prev_cont; + FT_Int xy_size = 0; + + + /* check that we can add the contours to the glyph */ + error = FT_GLYPHLOADER_CHECK_POINTS( gloader, 0, n_contours ); + if ( error ) + goto Fail; + + /* reading the contours' endpoints & number of points */ + cont = gloader->current.outline.contours; + cont_limit = cont + n_contours; + + /* check space for contours array + instructions count */ + if ( n_contours >= 0xFFF || p + ( n_contours + 1 ) * 2 > limit ) + goto Invalid_Outline; + + prev_cont = FT_NEXT_SHORT( p ); + + if ( n_contours > 0 ) + cont[0] = prev_cont; + + if ( prev_cont < 0 ) + goto Invalid_Outline; + + for ( cont++; cont < cont_limit; cont++ ) + { + cont[0] = FT_NEXT_SHORT( p ); + if ( cont[0] <= prev_cont ) + { + /* unordered contours: this is invalid */ + goto Invalid_Outline; + } + prev_cont = cont[0]; + } + + n_points = 0; + if ( n_contours > 0 ) + { + n_points = cont[-1] + 1; + if ( n_points < 0 ) + goto Invalid_Outline; + } + + /* note that we will add four phantom points later */ + error = FT_GLYPHLOADER_CHECK_POINTS( gloader, n_points + 4, 0 ); + if ( error ) + goto Fail; + + /* reading the bytecode instructions */ + load->glyph->control_len = 0; + load->glyph->control_data = 0; + + if ( p + 2 > limit ) + goto Invalid_Outline; + + n_ins = FT_NEXT_USHORT( p ); + + FT_TRACE5(( " Instructions size: %u\n", n_ins )); + + if ( n_ins > face->max_profile.maxSizeOfInstructions ) + { + FT_TRACE0(( "TT_Load_Simple_Glyph: too many instructions (%d)\n", + n_ins )); + error = TT_Err_Too_Many_Hints; + goto Fail; + } + + if ( ( limit - p ) < n_ins ) + { + FT_TRACE0(( "TT_Load_Simple_Glyph: instruction count mismatch\n" )); + error = TT_Err_Too_Many_Hints; + goto Fail; + } + +#ifdef TT_USE_BYTECODE_INTERPRETER + + if ( IS_HINTED( load->load_flags ) ) + { + load->glyph->control_len = n_ins; + load->glyph->control_data = load->exec->glyphIns; + + FT_MEM_COPY( load->exec->glyphIns, p, (FT_Long)n_ins ); + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + p += n_ins; + + outline = &gloader->current.outline; + + /* reading the point tags */ + flag = (FT_Byte*)outline->tags; + flag_limit = flag + n_points; + + FT_ASSERT( flag != NULL ); + + while ( flag < flag_limit ) + { + if ( p + 1 > limit ) + goto Invalid_Outline; + + *flag++ = c = FT_NEXT_BYTE( p ); + if ( c & 8 ) + { + if ( p + 1 > limit ) + goto Invalid_Outline; + + count = FT_NEXT_BYTE( p ); + if ( flag + (FT_Int)count > flag_limit ) + goto Invalid_Outline; + + for ( ; count > 0; count-- ) + *flag++ = c; + } + } + + /* reading the X coordinates */ + + vec = outline->points; + vec_limit = vec + n_points; + flag = (FT_Byte*)outline->tags; + x = 0; + + if ( p + xy_size > limit ) + goto Invalid_Outline; + + for ( ; vec < vec_limit; vec++, flag++ ) + { + FT_Pos y = 0; + FT_Byte f = *flag; + + + if ( f & 2 ) + { + if ( p + 1 > limit ) + goto Invalid_Outline; + + y = (FT_Pos)FT_NEXT_BYTE( p ); + if ( ( f & 16 ) == 0 ) + y = -y; + } + else if ( ( f & 16 ) == 0 ) + { + if ( p + 2 > limit ) + goto Invalid_Outline; + + y = (FT_Pos)FT_NEXT_SHORT( p ); + } + + x += y; + vec->x = x; + /* the cast is for stupid compilers */ + *flag = (FT_Byte)( f & ~( 2 | 16 ) ); + } + + /* reading the Y coordinates */ + + vec = gloader->current.outline.points; + vec_limit = vec + n_points; + flag = (FT_Byte*)outline->tags; + x = 0; + + for ( ; vec < vec_limit; vec++, flag++ ) + { + FT_Pos y = 0; + FT_Byte f = *flag; + + + if ( f & 4 ) + { + if ( p + 1 > limit ) + goto Invalid_Outline; + + y = (FT_Pos)FT_NEXT_BYTE( p ); + if ( ( f & 32 ) == 0 ) + y = -y; + } + else if ( ( f & 32 ) == 0 ) + { + if ( p + 2 > limit ) + goto Invalid_Outline; + + y = (FT_Pos)FT_NEXT_SHORT( p ); + } + + x += y; + vec->y = x; + /* the cast is for stupid compilers */ + *flag = (FT_Byte)( f & FT_CURVE_TAG_ON ); + } + + outline->n_points = (FT_UShort)n_points; + outline->n_contours = (FT_Short) n_contours; + + load->cursor = p; + + Fail: + return error; + + Invalid_Outline: + error = TT_Err_Invalid_Outline; + goto Fail; + } + + + FT_CALLBACK_DEF( FT_Error ) + TT_Load_Composite_Glyph( TT_Loader loader ) + { + FT_Error error; + FT_Byte* p = loader->cursor; + FT_Byte* limit = loader->limit; + FT_GlyphLoader gloader = loader->gloader; + FT_SubGlyph subglyph; + FT_UInt num_subglyphs; + + + num_subglyphs = 0; + + do + { + FT_Fixed xx, xy, yy, yx; + FT_UInt count; + + + /* check that we can load a new subglyph */ + error = FT_GlyphLoader_CheckSubGlyphs( gloader, num_subglyphs + 1 ); + if ( error ) + goto Fail; + + /* check space */ + if ( p + 4 > limit ) + goto Invalid_Composite; + + subglyph = gloader->current.subglyphs + num_subglyphs; + + subglyph->arg1 = subglyph->arg2 = 0; + + subglyph->flags = FT_NEXT_USHORT( p ); + subglyph->index = FT_NEXT_USHORT( p ); + + /* check space */ + count = 2; + if ( subglyph->flags & ARGS_ARE_WORDS ) + count += 2; + if ( subglyph->flags & WE_HAVE_A_SCALE ) + count += 2; + else if ( subglyph->flags & WE_HAVE_AN_XY_SCALE ) + count += 4; + else if ( subglyph->flags & WE_HAVE_A_2X2 ) + count += 8; + + if ( p + count > limit ) + goto Invalid_Composite; + + /* read arguments */ + if ( subglyph->flags & ARGS_ARE_WORDS ) + { + subglyph->arg1 = FT_NEXT_SHORT( p ); + subglyph->arg2 = FT_NEXT_SHORT( p ); + } + else + { + subglyph->arg1 = FT_NEXT_CHAR( p ); + subglyph->arg2 = FT_NEXT_CHAR( p ); + } + + /* read transform */ + xx = yy = 0x10000L; + xy = yx = 0; + + if ( subglyph->flags & WE_HAVE_A_SCALE ) + { + xx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + yy = xx; + } + else if ( subglyph->flags & WE_HAVE_AN_XY_SCALE ) + { + xx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + yy = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + } + else if ( subglyph->flags & WE_HAVE_A_2X2 ) + { + xx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + yx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + xy = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + yy = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; + } + + subglyph->transform.xx = xx; + subglyph->transform.xy = xy; + subglyph->transform.yx = yx; + subglyph->transform.yy = yy; + + num_subglyphs++; + + } while ( subglyph->flags & MORE_COMPONENTS ); + + gloader->current.num_subglyphs = num_subglyphs; + +#ifdef TT_USE_BYTECODE_INTERPRETER + + { + FT_Stream stream = loader->stream; + + + /* we must undo the FT_FRAME_ENTER in order to point */ + /* to the composite instructions, if we find some. */ + /* We will process them later. */ + /* */ + loader->ins_pos = (FT_ULong)( FT_STREAM_POS() + + p - limit ); + } + +#endif + + loader->cursor = p; + + Fail: + return error; + + Invalid_Composite: + error = TT_Err_Invalid_Composite; + goto Fail; + } + + + FT_LOCAL_DEF( void ) + TT_Init_Glyph_Loading( TT_Face face ) + { + face->access_glyph_frame = TT_Access_Glyph_Frame; + face->read_glyph_header = TT_Load_Glyph_Header; + face->read_simple_glyph = TT_Load_Simple_Glyph; + face->read_composite_glyph = TT_Load_Composite_Glyph; + face->forget_glyph_frame = TT_Forget_Glyph_Frame; + } + + + static void + tt_prepare_zone( TT_GlyphZone zone, + FT_GlyphLoad load, + FT_UInt start_point, + FT_UInt start_contour ) + { + zone->n_points = (FT_UShort)( load->outline.n_points - start_point ); + zone->n_contours = (FT_Short) ( load->outline.n_contours - + start_contour ); + zone->org = load->extra_points + start_point; + zone->cur = load->outline.points + start_point; + zone->orus = load->extra_points2 + start_point; + zone->tags = (FT_Byte*)load->outline.tags + start_point; + zone->contours = (FT_UShort*)load->outline.contours + start_contour; + zone->first_point = (FT_UShort)start_point; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Hint_Glyph */ + /* */ + /* */ + /* Hint the glyph using the zone prepared by the caller. Note that */ + /* the zone is supposed to include four phantom points. */ + /* */ + static FT_Error + TT_Hint_Glyph( TT_Loader loader, + FT_Bool is_composite ) + { + TT_GlyphZone zone = &loader->zone; + FT_Pos origin; + +#ifdef TT_USE_BYTECODE_INTERPRETER + FT_UInt n_ins; +#else + FT_UNUSED( is_composite ); +#endif + + +#ifdef TT_USE_BYTECODE_INTERPRETER + if ( loader->glyph->control_len > 0xFFFFL ) + { + FT_TRACE1(( "TT_Hint_Glyph: too long instructions " )); + FT_TRACE1(( "(0x%lx byte) is truncated\n", + loader->glyph->control_len )); + } + n_ins = (FT_UInt)( loader->glyph->control_len ); +#endif + + origin = zone->cur[zone->n_points - 4].x; + origin = FT_PIX_ROUND( origin ) - origin; + if ( origin ) + translate_array( zone->n_points, zone->cur, origin, 0 ); + +#ifdef TT_USE_BYTECODE_INTERPRETER + /* save original point position in org */ + if ( n_ins > 0 ) + FT_ARRAY_COPY( zone->org, zone->cur, zone->n_points ); + + /* Reset graphics state. */ + loader->exec->GS = ((TT_Size)loader->size)->GS; + + /* XXX: UNDOCUMENTED! Hinting instructions of a composite glyph */ + /* completely refer to the (already) hinted subglyphs. */ + if ( is_composite ) + { + loader->exec->metrics.x_scale = 1 << 16; + loader->exec->metrics.y_scale = 1 << 16; + + FT_ARRAY_COPY( zone->orus, zone->cur, zone->n_points ); + } + else + { + loader->exec->metrics.x_scale = + ((TT_Size)loader->size)->metrics.x_scale; + loader->exec->metrics.y_scale = + ((TT_Size)loader->size)->metrics.y_scale; + } +#endif + + /* round pp2 and pp4 */ + zone->cur[zone->n_points - 3].x = + FT_PIX_ROUND( zone->cur[zone->n_points - 3].x ); + zone->cur[zone->n_points - 1].y = + FT_PIX_ROUND( zone->cur[zone->n_points - 1].y ); + +#ifdef TT_USE_BYTECODE_INTERPRETER + + if ( n_ins > 0 ) + { + FT_Bool debug; + FT_Error error; + + FT_GlyphLoader gloader = loader->gloader; + FT_Outline current_outline = gloader->current.outline; + + + error = TT_Set_CodeRange( loader->exec, tt_coderange_glyph, + loader->exec->glyphIns, n_ins ); + if ( error ) + return error; + + loader->exec->is_composite = is_composite; + loader->exec->pts = *zone; + + debug = FT_BOOL( !( loader->load_flags & FT_LOAD_NO_SCALE ) && + ((TT_Size)loader->size)->debug ); + + error = TT_Run_Context( loader->exec, debug ); + if ( error && loader->exec->pedantic_hinting ) + return error; + + /* store drop-out mode in bits 5-7; set bit 2 also as a marker */ + current_outline.tags[0] |= + ( loader->exec->GS.scan_type << 5 ) | FT_CURVE_TAG_HAS_SCANMODE; + } + +#endif + + /* save glyph phantom points */ + if ( !loader->preserve_pps ) + { + loader->pp1 = zone->cur[zone->n_points - 4]; + loader->pp2 = zone->cur[zone->n_points - 3]; + loader->pp3 = zone->cur[zone->n_points - 2]; + loader->pp4 = zone->cur[zone->n_points - 1]; + } + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Process_Simple_Glyph */ + /* */ + /* */ + /* Once a simple glyph has been loaded, it needs to be processed. */ + /* Usually, this means scaling and hinting through bytecode */ + /* interpretation. */ + /* */ + static FT_Error + TT_Process_Simple_Glyph( TT_Loader loader ) + { + FT_GlyphLoader gloader = loader->gloader; + FT_Error error = TT_Err_Ok; + FT_Outline* outline; + FT_Int n_points; + + + outline = &gloader->current.outline; + n_points = outline->n_points; + + /* set phantom points */ + + outline->points[n_points ] = loader->pp1; + outline->points[n_points + 1] = loader->pp2; + outline->points[n_points + 2] = loader->pp3; + outline->points[n_points + 3] = loader->pp4; + + outline->tags[n_points ] = 0; + outline->tags[n_points + 1] = 0; + outline->tags[n_points + 2] = 0; + outline->tags[n_points + 3] = 0; + + n_points += 4; + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + + if ( ((TT_Face)loader->face)->doblend ) + { + /* Deltas apply to the unscaled data. */ + FT_Vector* deltas; + FT_Memory memory = loader->face->memory; + FT_Int i; + + + error = TT_Vary_Get_Glyph_Deltas( (TT_Face)(loader->face), + loader->glyph_index, + &deltas, + n_points ); + if ( error ) + return error; + + for ( i = 0; i < n_points; ++i ) + { + outline->points[i].x += deltas[i].x; + outline->points[i].y += deltas[i].y; + } + + FT_FREE( deltas ); + } + +#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ + + if ( IS_HINTED( loader->load_flags ) ) + { + tt_prepare_zone( &loader->zone, &gloader->current, 0, 0 ); + + FT_ARRAY_COPY( loader->zone.orus, loader->zone.cur, + loader->zone.n_points + 4 ); + } + + /* scale the glyph */ + if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) + { + FT_Vector* vec = outline->points; + FT_Vector* limit = outline->points + n_points; + FT_Fixed x_scale = ((TT_Size)loader->size)->metrics.x_scale; + FT_Fixed y_scale = ((TT_Size)loader->size)->metrics.y_scale; + + + for ( ; vec < limit; vec++ ) + { + vec->x = FT_MulFix( vec->x, x_scale ); + vec->y = FT_MulFix( vec->y, y_scale ); + } + + loader->pp1 = outline->points[n_points - 4]; + loader->pp2 = outline->points[n_points - 3]; + loader->pp3 = outline->points[n_points - 2]; + loader->pp4 = outline->points[n_points - 1]; + } + + if ( IS_HINTED( loader->load_flags ) ) + { + loader->zone.n_points += 4; + + error = TT_Hint_Glyph( loader, 0 ); + } + + return error; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Process_Composite_Component */ + /* */ + /* */ + /* Once a composite component has been loaded, it needs to be */ + /* processed. Usually, this means transforming and translating. */ + /* */ + static FT_Error + TT_Process_Composite_Component( TT_Loader loader, + FT_SubGlyph subglyph, + FT_UInt start_point, + FT_UInt num_base_points ) + { + FT_GlyphLoader gloader = loader->gloader; + FT_Vector* base_vec = gloader->base.outline.points; + FT_UInt num_points = gloader->base.outline.n_points; + FT_Bool have_scale; + FT_Pos x, y; + + + have_scale = FT_BOOL( subglyph->flags & ( WE_HAVE_A_SCALE | + WE_HAVE_AN_XY_SCALE | + WE_HAVE_A_2X2 ) ); + + /* perform the transform required for this subglyph */ + if ( have_scale ) + { + FT_UInt i; + + + for ( i = num_base_points; i < num_points; i++ ) + FT_Vector_Transform( base_vec + i, &subglyph->transform ); + } + + /* get offset */ + if ( !( subglyph->flags & ARGS_ARE_XY_VALUES ) ) + { + FT_UInt k = subglyph->arg1; + FT_UInt l = subglyph->arg2; + FT_Vector* p1; + FT_Vector* p2; + + + /* match l-th point of the newly loaded component to the k-th point */ + /* of the previously loaded components. */ + + /* change to the point numbers used by our outline */ + k += start_point; + l += num_base_points; + if ( k >= num_base_points || + l >= num_points ) + return TT_Err_Invalid_Composite; + + p1 = gloader->base.outline.points + k; + p2 = gloader->base.outline.points + l; + + x = p1->x - p2->x; + y = p1->y - p2->y; + } + else + { + x = subglyph->arg1; + y = subglyph->arg2; + + if ( !x && !y ) + return TT_Err_Ok; + + /* Use a default value dependent on */ + /* TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED. This is useful for old TT */ + /* fonts which don't set the xxx_COMPONENT_OFFSET bit. */ + + if ( have_scale && +#ifdef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED + !( subglyph->flags & UNSCALED_COMPONENT_OFFSET ) ) +#else + ( subglyph->flags & SCALED_COMPONENT_OFFSET ) ) +#endif + { + +#if 0 + + /*************************************************************************/ + /* */ + /* This algorithm is what Apple documents. But it doesn't work. */ + /* */ + int a = subglyph->transform.xx > 0 ? subglyph->transform.xx + : -subglyph->transform.xx; + int b = subglyph->transform.yx > 0 ? subglyph->transform.yx + : -subglyph->transform.yx; + int c = subglyph->transform.xy > 0 ? subglyph->transform.xy + : -subglyph->transform.xy; + int d = subglyph->transform.yy > 0 ? subglyph->transform.yy + : -subglyph->transform.yy; + int m = a > b ? a : b; + int n = c > d ? c : d; + + + if ( a - b <= 33 && a - b >= -33 ) + m *= 2; + if ( c - d <= 33 && c - d >= -33 ) + n *= 2; + x = FT_MulFix( x, m ); + y = FT_MulFix( y, n ); + +#else /* 0 */ + + /*************************************************************************/ + /* */ + /* This algorithm is a guess and works much better than the above. */ + /* */ + FT_Fixed mac_xscale = FT_SqrtFixed( + (FT_Int32)FT_MulFix( subglyph->transform.xx, + subglyph->transform.xx ) + + (FT_Int32)FT_MulFix( subglyph->transform.xy, + subglyph->transform.xy ) ); + FT_Fixed mac_yscale = FT_SqrtFixed( + (FT_Int32)FT_MulFix( subglyph->transform.yy, + subglyph->transform.yy ) + + (FT_Int32)FT_MulFix( subglyph->transform.yx, + subglyph->transform.yx ) ); + + + x = FT_MulFix( x, mac_xscale ); + y = FT_MulFix( y, mac_yscale ); + +#endif /* 0 */ + + } + + if ( !( loader->load_flags & FT_LOAD_NO_SCALE ) ) + { + FT_Fixed x_scale = ((TT_Size)loader->size)->metrics.x_scale; + FT_Fixed y_scale = ((TT_Size)loader->size)->metrics.y_scale; + + + x = FT_MulFix( x, x_scale ); + y = FT_MulFix( y, y_scale ); + + if ( subglyph->flags & ROUND_XY_TO_GRID ) + { + x = FT_PIX_ROUND( x ); + y = FT_PIX_ROUND( y ); + } + } + } + + if ( x || y ) + translate_array( num_points - num_base_points, + base_vec + num_base_points, + x, y ); + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Process_Composite_Glyph */ + /* */ + /* */ + /* This is slightly different from TT_Process_Simple_Glyph, in that */ + /* its sole purpose is to hint the glyph. Thus this function is */ + /* only available when bytecode interpreter is enabled. */ + /* */ + static FT_Error + TT_Process_Composite_Glyph( TT_Loader loader, + FT_UInt start_point, + FT_UInt start_contour ) + { + FT_Error error; + FT_Outline* outline; + FT_UInt i; + + + outline = &loader->gloader->base.outline; + + /* make room for phantom points */ + error = FT_GLYPHLOADER_CHECK_POINTS( loader->gloader, + outline->n_points + 4, + 0 ); + if ( error ) + return error; + + outline->points[outline->n_points ] = loader->pp1; + outline->points[outline->n_points + 1] = loader->pp2; + outline->points[outline->n_points + 2] = loader->pp3; + outline->points[outline->n_points + 3] = loader->pp4; + + outline->tags[outline->n_points ] = 0; + outline->tags[outline->n_points + 1] = 0; + outline->tags[outline->n_points + 2] = 0; + outline->tags[outline->n_points + 3] = 0; + +#ifdef TT_USE_BYTECODE_INTERPRETER + + { + FT_Stream stream = loader->stream; + FT_UShort n_ins, max_ins; + FT_ULong tmp; + + + /* TT_Load_Composite_Glyph only gives us the offset of instructions */ + /* so we read them here */ + if ( FT_STREAM_SEEK( loader->ins_pos ) || + FT_READ_USHORT( n_ins ) ) + return error; + + FT_TRACE5(( " Instructions size = %d\n", n_ins )); + + /* check it */ + max_ins = ((TT_Face)loader->face)->max_profile.maxSizeOfInstructions; + if ( n_ins > max_ins ) + { + /* acroread ignores this field, so we only do a rough safety check */ + if ( (FT_Int)n_ins > loader->byte_len ) + { + FT_TRACE1(( "TT_Process_Composite_Glyph: " + "too many instructions (%d) for glyph with length %d\n", + n_ins, loader->byte_len )); + return TT_Err_Too_Many_Hints; + } + + tmp = loader->exec->glyphSize; + error = Update_Max( loader->exec->memory, + &tmp, + sizeof ( FT_Byte ), + (void*)&loader->exec->glyphIns, + n_ins ); + loader->exec->glyphSize = (FT_UShort)tmp; + if ( error ) + return error; + } + else if ( n_ins == 0 ) + return TT_Err_Ok; + + if ( FT_STREAM_READ( loader->exec->glyphIns, n_ins ) ) + return error; + + loader->glyph->control_data = loader->exec->glyphIns; + loader->glyph->control_len = n_ins; + } + +#endif + + tt_prepare_zone( &loader->zone, &loader->gloader->base, + start_point, start_contour ); + + /* Some points are likely touched during execution of */ + /* instructions on components. So let's untouch them. */ + for ( i = start_point; i < loader->zone.n_points; i++ ) + loader->zone.tags[i] &= ~FT_CURVE_TAG_TOUCH_BOTH; + + loader->zone.n_points += 4; + + return TT_Hint_Glyph( loader, 1 ); + } + + + /* Calculate the four phantom points. */ + /* The first two stand for horizontal origin and advance. */ + /* The last two stand for vertical origin and advance. */ +#define TT_LOADER_SET_PP( loader ) \ + do { \ + (loader)->pp1.x = (loader)->bbox.xMin - (loader)->left_bearing; \ + (loader)->pp1.y = 0; \ + (loader)->pp2.x = (loader)->pp1.x + (loader)->advance; \ + (loader)->pp2.y = 0; \ + (loader)->pp3.x = 0; \ + (loader)->pp3.y = (loader)->top_bearing + (loader)->bbox.yMax; \ + (loader)->pp4.x = 0; \ + (loader)->pp4.y = (loader)->pp3.y - (loader)->vadvance; \ + } while ( 0 ) + + + /*************************************************************************/ + /* */ + /* */ + /* load_truetype_glyph */ + /* */ + /* */ + /* Loads a given truetype glyph. Handles composites and uses a */ + /* TT_Loader object. */ + /* */ + static FT_Error + load_truetype_glyph( TT_Loader loader, + FT_UInt glyph_index, + FT_UInt recurse_count, + FT_Bool header_only ) + { + FT_Error error = TT_Err_Ok; + FT_Fixed x_scale, y_scale; + FT_ULong offset; + TT_Face face = (TT_Face)loader->face; + FT_GlyphLoader gloader = loader->gloader; + FT_Bool opened_frame = 0; + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_Vector* deltas = NULL; +#endif + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + FT_StreamRec inc_stream; + FT_Data glyph_data; + FT_Bool glyph_data_loaded = 0; +#endif + + + /* some fonts have an incorrect value of `maxComponentDepth', */ + /* thus we allow depth 1 to catch the majority of them */ + if ( recurse_count > 1 && + recurse_count > face->max_profile.maxComponentDepth ) + { + error = TT_Err_Invalid_Composite; + goto Exit; + } + + /* check glyph index */ + if ( glyph_index >= (FT_UInt)face->root.num_glyphs ) + { + error = TT_Err_Invalid_Glyph_Index; + goto Exit; + } + + loader->glyph_index = glyph_index; + + if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) + { + x_scale = ((TT_Size)loader->size)->metrics.x_scale; + y_scale = ((TT_Size)loader->size)->metrics.y_scale; + } + else + { + x_scale = 0x10000L; + y_scale = 0x10000L; + } + + tt_get_metrics( loader, glyph_index ); + + /* Set `offset' to the start of the glyph relative to the start of */ + /* the `glyf' table, and `byte_len' to the length of the glyph in */ + /* bytes. */ + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + /* If we are loading glyph data via the incremental interface, set */ + /* the loader stream to a memory stream reading the data returned */ + /* by the interface. */ + if ( face->root.internal->incremental_interface ) + { + error = face->root.internal->incremental_interface->funcs->get_glyph_data( + face->root.internal->incremental_interface->object, + glyph_index, &glyph_data ); + if ( error ) + goto Exit; + + glyph_data_loaded = 1; + offset = 0; + loader->byte_len = glyph_data.length; + + FT_MEM_ZERO( &inc_stream, sizeof ( inc_stream ) ); + FT_Stream_OpenMemory( &inc_stream, + glyph_data.pointer, glyph_data.length ); + + loader->stream = &inc_stream; + } + else + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + offset = tt_face_get_location( face, glyph_index, + (FT_UInt*)&loader->byte_len ); + + if ( loader->byte_len > 0 ) + { +#ifdef FT_CONFIG_OPTION_INCREMENTAL + /* for the incremental interface, `glyf_offset' is always zero */ + if ( !loader->glyf_offset && + !face->root.internal->incremental_interface ) +#else + if ( !loader->glyf_offset ) +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + { + FT_TRACE2(( "no `glyf' table but non-zero `loca' entry\n" )); + error = TT_Err_Invalid_Table; + goto Exit; + } + + error = face->access_glyph_frame( loader, glyph_index, + loader->glyf_offset + offset, + loader->byte_len ); + if ( error ) + goto Exit; + + opened_frame = 1; + + /* read glyph header first */ + error = face->read_glyph_header( loader ); + if ( error || header_only ) + goto Exit; + } + + if ( loader->byte_len == 0 || loader->n_contours == 0 ) + { + loader->bbox.xMin = 0; + loader->bbox.xMax = 0; + loader->bbox.yMin = 0; + loader->bbox.yMax = 0; + + if ( header_only ) + goto Exit; + + /* must initialize points before (possibly) overriding */ + /* glyph metrics from the incremental interface */ + TT_LOADER_SET_PP( loader ); + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + tt_get_metrics_incr_overrides( loader, glyph_index ); +#endif + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + + if ( ((TT_Face)(loader->face))->doblend ) + { + /* this must be done before scaling */ + FT_Memory memory = loader->face->memory; + + + error = TT_Vary_Get_Glyph_Deltas( (TT_Face)(loader->face), + glyph_index, &deltas, 4 ); + if ( error ) + goto Exit; + + loader->pp1.x += deltas[0].x; loader->pp1.y += deltas[0].y; + loader->pp2.x += deltas[1].x; loader->pp2.y += deltas[1].y; + loader->pp3.x += deltas[2].x; loader->pp3.y += deltas[2].y; + loader->pp4.x += deltas[3].x; loader->pp4.y += deltas[3].y; + + FT_FREE( deltas ); + } + +#endif + + if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) + { + loader->pp1.x = FT_MulFix( loader->pp1.x, x_scale ); + loader->pp2.x = FT_MulFix( loader->pp2.x, x_scale ); + loader->pp3.y = FT_MulFix( loader->pp3.y, y_scale ); + loader->pp4.y = FT_MulFix( loader->pp4.y, y_scale ); + } + + error = TT_Err_Ok; + goto Exit; + } + + /* must initialize points before (possibly) overriding */ + /* glyph metrics from the incremental interface */ + TT_LOADER_SET_PP( loader ); + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + tt_get_metrics_incr_overrides( loader, glyph_index ); +#endif + + /***********************************************************************/ + /***********************************************************************/ + /***********************************************************************/ + + /* if it is a simple glyph, load it */ + + if ( loader->n_contours > 0 ) + { + error = face->read_simple_glyph( loader ); + if ( error ) + goto Exit; + + /* all data have been read */ + face->forget_glyph_frame( loader ); + opened_frame = 0; + + error = TT_Process_Simple_Glyph( loader ); + if ( error ) + goto Exit; + + FT_GlyphLoader_Add( gloader ); + } + + /***********************************************************************/ + /***********************************************************************/ + /***********************************************************************/ + + /* otherwise, load a composite! */ + else if ( loader->n_contours == -1 ) + { + FT_UInt start_point; + FT_UInt start_contour; + FT_ULong ins_pos; /* position of composite instructions, if any */ + + + start_point = gloader->base.outline.n_points; + start_contour = gloader->base.outline.n_contours; + + /* for each subglyph, read composite header */ + error = face->read_composite_glyph( loader ); + if ( error ) + goto Exit; + + /* store the offset of instructions */ + ins_pos = loader->ins_pos; + + /* all data we need are read */ + face->forget_glyph_frame( loader ); + opened_frame = 0; + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + + if ( face->doblend ) + { + FT_Int i, limit; + FT_SubGlyph subglyph; + FT_Memory memory = face->root.memory; + + + /* this provides additional offsets */ + /* for each component's translation */ + + if ( ( error = TT_Vary_Get_Glyph_Deltas( + face, + glyph_index, + &deltas, + gloader->current.num_subglyphs + 4 )) != 0 ) + goto Exit; + + subglyph = gloader->current.subglyphs + gloader->base.num_subglyphs; + limit = gloader->current.num_subglyphs; + + for ( i = 0; i < limit; ++i, ++subglyph ) + { + if ( subglyph->flags & ARGS_ARE_XY_VALUES ) + { + /* XXX: overflow check for subglyph->{arg1,arg2}. */ + /* deltas[i].{x,y} must be within signed 16-bit, */ + /* but the restriction of summed delta is not clear */ + subglyph->arg1 += (FT_Int16)deltas[i].x; + subglyph->arg2 += (FT_Int16)deltas[i].y; + } + } + + loader->pp1.x += deltas[i + 0].x; loader->pp1.y += deltas[i + 0].y; + loader->pp2.x += deltas[i + 1].x; loader->pp2.y += deltas[i + 1].y; + loader->pp3.x += deltas[i + 2].x; loader->pp3.y += deltas[i + 2].y; + loader->pp4.x += deltas[i + 3].x; loader->pp4.y += deltas[i + 3].y; + + FT_FREE( deltas ); + } + +#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ + + if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) + { + loader->pp1.x = FT_MulFix( loader->pp1.x, x_scale ); + loader->pp2.x = FT_MulFix( loader->pp2.x, x_scale ); + loader->pp3.y = FT_MulFix( loader->pp3.y, y_scale ); + loader->pp4.y = FT_MulFix( loader->pp4.y, y_scale ); + } + + /* if the flag FT_LOAD_NO_RECURSE is set, we return the subglyph */ + /* `as is' in the glyph slot (the client application will be */ + /* responsible for interpreting these data)... */ + if ( loader->load_flags & FT_LOAD_NO_RECURSE ) + { + FT_GlyphLoader_Add( gloader ); + loader->glyph->format = FT_GLYPH_FORMAT_COMPOSITE; + + goto Exit; + } + + /*********************************************************************/ + /*********************************************************************/ + /*********************************************************************/ + + { + FT_UInt n, num_base_points; + FT_SubGlyph subglyph = 0; + + FT_UInt num_points = start_point; + FT_UInt num_subglyphs = gloader->current.num_subglyphs; + FT_UInt num_base_subgs = gloader->base.num_subglyphs; + + FT_Stream old_stream = loader->stream; + FT_Int old_byte_len = loader->byte_len; + + + FT_GlyphLoader_Add( gloader ); + + /* read each subglyph independently */ + for ( n = 0; n < num_subglyphs; n++ ) + { + FT_Vector pp[4]; + + + /* Each time we call load_truetype_glyph in this loop, the */ + /* value of `gloader.base.subglyphs' can change due to table */ + /* reallocations. We thus need to recompute the subglyph */ + /* pointer on each iteration. */ + subglyph = gloader->base.subglyphs + num_base_subgs + n; + + pp[0] = loader->pp1; + pp[1] = loader->pp2; + pp[2] = loader->pp3; + pp[3] = loader->pp4; + + num_base_points = gloader->base.outline.n_points; + + error = load_truetype_glyph( loader, subglyph->index, + recurse_count + 1, FALSE ); + if ( error ) + goto Exit; + + /* restore subglyph pointer */ + subglyph = gloader->base.subglyphs + num_base_subgs + n; + + if ( !( subglyph->flags & USE_MY_METRICS ) ) + { + loader->pp1 = pp[0]; + loader->pp2 = pp[1]; + loader->pp3 = pp[2]; + loader->pp4 = pp[3]; + } + + num_points = gloader->base.outline.n_points; + + if ( num_points == num_base_points ) + continue; + + /* gloader->base.outline consists of three parts: */ + /* 0 -(1)-> start_point -(2)-> num_base_points -(3)-> n_points. */ + /* */ + /* (1): exists from the beginning */ + /* (2): components that have been loaded so far */ + /* (3): the newly loaded component */ + TT_Process_Composite_Component( loader, subglyph, start_point, + num_base_points ); + } + + loader->stream = old_stream; + loader->byte_len = old_byte_len; + + /* process the glyph */ + loader->ins_pos = ins_pos; + if ( IS_HINTED( loader->load_flags ) && + +#ifdef TT_USE_BYTECODE_INTERPRETER + + subglyph->flags & WE_HAVE_INSTR && + +#endif + + num_points > start_point ) + TT_Process_Composite_Glyph( loader, start_point, start_contour ); + + } + } + else + { + /* invalid composite count (negative but not -1) */ + error = TT_Err_Invalid_Outline; + goto Exit; + } + + /***********************************************************************/ + /***********************************************************************/ + /***********************************************************************/ + + Exit: + + if ( opened_frame ) + face->forget_glyph_frame( loader ); + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + if ( glyph_data_loaded ) + face->root.internal->incremental_interface->funcs->free_glyph_data( + face->root.internal->incremental_interface->object, + &glyph_data ); + +#endif + + return error; + } + + + static FT_Error + compute_glyph_metrics( TT_Loader loader, + FT_UInt glyph_index ) + { + FT_BBox bbox; + TT_Face face = (TT_Face)loader->face; + FT_Fixed y_scale; + TT_GlyphSlot glyph = loader->glyph; + TT_Size size = (TT_Size)loader->size; + + + y_scale = 0x10000L; + if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) + y_scale = size->root.metrics.y_scale; + + if ( glyph->format != FT_GLYPH_FORMAT_COMPOSITE ) + FT_Outline_Get_CBox( &glyph->outline, &bbox ); + else + bbox = loader->bbox; + + /* get the device-independent horizontal advance; it is scaled later */ + /* by the base layer. */ + glyph->linearHoriAdvance = loader->linear; + + glyph->metrics.horiBearingX = bbox.xMin; + glyph->metrics.horiBearingY = bbox.yMax; + glyph->metrics.horiAdvance = loader->pp2.x - loader->pp1.x; + + /* adjust advance width to the value contained in the hdmx table */ + if ( !face->postscript.isFixedPitch && + IS_HINTED( loader->load_flags ) ) + { + FT_Byte* widthp; + + + widthp = tt_face_get_device_metrics( face, + size->root.metrics.x_ppem, + glyph_index ); + + if ( widthp ) + glyph->metrics.horiAdvance = *widthp << 6; + } + + /* set glyph dimensions */ + glyph->metrics.width = bbox.xMax - bbox.xMin; + glyph->metrics.height = bbox.yMax - bbox.yMin; + + /* Now take care of vertical metrics. In the case where there is */ + /* no vertical information within the font (relatively common), */ + /* create some metrics manually */ + { + FT_Pos top; /* scaled vertical top side bearing */ + FT_Pos advance; /* scaled vertical advance height */ + + + /* Get the unscaled top bearing and advance height. */ + if ( face->vertical_info && + face->vertical.number_Of_VMetrics > 0 ) + { + top = (FT_Short)FT_DivFix( loader->pp3.y - bbox.yMax, + y_scale ); + + if ( loader->pp3.y <= loader->pp4.y ) + advance = 0; + else + advance = (FT_UShort)FT_DivFix( loader->pp3.y - loader->pp4.y, + y_scale ); + } + else + { + FT_Pos height; + + + /* XXX Compute top side bearing and advance height in */ + /* Get_VMetrics instead of here. */ + + /* NOTE: The OS/2 values are the only `portable' ones, */ + /* which is why we use them, if there is an OS/2 */ + /* table in the font. Otherwise, we use the */ + /* values defined in the horizontal header. */ + + height = (FT_Short)FT_DivFix( bbox.yMax - bbox.yMin, + y_scale ); + if ( face->os2.version != 0xFFFFU ) + advance = (FT_Pos)( face->os2.sTypoAscender - + face->os2.sTypoDescender ); + else + advance = (FT_Pos)( face->horizontal.Ascender - + face->horizontal.Descender ); + + top = ( advance - height ) / 2; + } + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + { + FT_Incremental_InterfaceRec* incr; + FT_Incremental_MetricsRec metrics; + FT_Error error; + + + incr = face->root.internal->incremental_interface; + + /* If this is an incrementally loaded font see if there are */ + /* overriding metrics for this glyph. */ + if ( incr && incr->funcs->get_glyph_metrics ) + { + metrics.bearing_x = 0; + metrics.bearing_y = top; + metrics.advance = advance; + + error = incr->funcs->get_glyph_metrics( incr->object, + glyph_index, + TRUE, + &metrics ); + if ( error ) + return error; + + top = metrics.bearing_y; + advance = metrics.advance; + } + } + + /* GWW: Do vertical metrics get loaded incrementally too? */ + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + glyph->linearVertAdvance = advance; + + /* scale the metrics */ + if ( !( loader->load_flags & FT_LOAD_NO_SCALE ) ) + { + top = FT_MulFix( top, y_scale ); + advance = FT_MulFix( advance, y_scale ); + } + + /* XXX: for now, we have no better algorithm for the lsb, but it */ + /* should work fine. */ + /* */ + glyph->metrics.vertBearingX = glyph->metrics.horiBearingX - + glyph->metrics.horiAdvance / 2; + glyph->metrics.vertBearingY = top; + glyph->metrics.vertAdvance = advance; + } + + return 0; + } + + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + static FT_Error + load_sbit_image( TT_Size size, + TT_GlyphSlot glyph, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + TT_Face face; + SFNT_Service sfnt; + FT_Stream stream; + FT_Error error; + TT_SBit_MetricsRec metrics; + + + face = (TT_Face)glyph->face; + sfnt = (SFNT_Service)face->sfnt; + stream = face->root.stream; + + error = sfnt->load_sbit_image( face, + size->strike_index, + glyph_index, + (FT_Int)load_flags, + stream, + &glyph->bitmap, + &metrics ); + if ( !error ) + { + glyph->outline.n_points = 0; + glyph->outline.n_contours = 0; + + glyph->metrics.width = (FT_Pos)metrics.width << 6; + glyph->metrics.height = (FT_Pos)metrics.height << 6; + + glyph->metrics.horiBearingX = (FT_Pos)metrics.horiBearingX << 6; + glyph->metrics.horiBearingY = (FT_Pos)metrics.horiBearingY << 6; + glyph->metrics.horiAdvance = (FT_Pos)metrics.horiAdvance << 6; + + glyph->metrics.vertBearingX = (FT_Pos)metrics.vertBearingX << 6; + glyph->metrics.vertBearingY = (FT_Pos)metrics.vertBearingY << 6; + glyph->metrics.vertAdvance = (FT_Pos)metrics.vertAdvance << 6; + + glyph->format = FT_GLYPH_FORMAT_BITMAP; + + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + glyph->bitmap_left = metrics.vertBearingX; + glyph->bitmap_top = metrics.vertBearingY; + } + else + { + glyph->bitmap_left = metrics.horiBearingX; + glyph->bitmap_top = metrics.horiBearingY; + } + } + + return error; + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + + static FT_Error + tt_loader_init( TT_Loader loader, + TT_Size size, + TT_GlyphSlot glyph, + FT_Int32 load_flags, + FT_Bool glyf_table_only ) + { + TT_Face face; + FT_Stream stream; + FT_Bool pedantic = FT_BOOL( load_flags & FT_LOAD_PEDANTIC ); + + + face = (TT_Face)glyph->face; + stream = face->root.stream; + + FT_MEM_ZERO( loader, sizeof ( TT_LoaderRec ) ); + +#ifdef TT_USE_BYTECODE_INTERPRETER + + /* load execution context */ + if ( IS_HINTED( load_flags ) && !glyf_table_only ) + { + TT_ExecContext exec; + FT_Bool grayscale; + + + if ( !size->cvt_ready ) + { + FT_Error error = tt_size_ready_bytecode( size, pedantic ); + + + if ( error ) + return error; + } + + /* query new execution context */ + exec = size->debug ? size->context + : ( (TT_Driver)FT_FACE_DRIVER( face ) )->context; + if ( !exec ) + return TT_Err_Could_Not_Find_Context; + + grayscale = + FT_BOOL( FT_LOAD_TARGET_MODE( load_flags ) != FT_RENDER_MODE_MONO ); + + TT_Load_Context( exec, face, size ); + + /* a change from mono to grayscale rendering (and vice versa) */ + /* requires a re-execution of the CVT program */ + if ( grayscale != exec->grayscale ) + { + FT_UInt i; + + + FT_TRACE4(( "tt_loader_init: grayscale change," + " re-executing `prep' table\n" )); + + exec->grayscale = grayscale; + + for ( i = 0; i < size->cvt_size; i++ ) + size->cvt[i] = FT_MulFix( face->cvt[i], size->ttmetrics.scale ); + tt_size_run_prep( size, pedantic ); + } + + /* see whether the cvt program has disabled hinting */ + if ( exec->GS.instruct_control & 1 ) + load_flags |= FT_LOAD_NO_HINTING; + + /* load default graphics state -- if needed */ + if ( exec->GS.instruct_control & 2 ) + exec->GS = tt_default_graphics_state; + + exec->pedantic_hinting = FT_BOOL( load_flags & FT_LOAD_PEDANTIC ); + loader->exec = exec; + loader->instructions = exec->glyphIns; + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + /* seek to the beginning of the glyph table -- for Type 42 fonts */ + /* the table might be accessed from a Postscript stream or something */ + /* else... */ + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + if ( face->root.internal->incremental_interface ) + loader->glyf_offset = 0; + else + +#endif + + { + FT_Error error = face->goto_table( face, TTAG_glyf, stream, 0 ); + + + if ( error == TT_Err_Table_Missing ) + loader->glyf_offset = 0; + else if ( error ) + { + FT_ERROR(( "tt_loader_init: could not access glyph table\n" )); + return error; + } + else + loader->glyf_offset = FT_STREAM_POS(); + } + + /* get face's glyph loader */ + if ( !glyf_table_only ) + { + FT_GlyphLoader gloader = glyph->internal->loader; + + + FT_GlyphLoader_Rewind( gloader ); + loader->gloader = gloader; + } + + loader->load_flags = load_flags; + + loader->face = (FT_Face)face; + loader->size = (FT_Size)size; + loader->glyph = (FT_GlyphSlot)glyph; + loader->stream = stream; + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Load_Glyph */ + /* */ + /* */ + /* A function used to load a single glyph within a given glyph slot, */ + /* for a given size. */ + /* */ + /* */ + /* glyph :: A handle to a target slot object where the glyph */ + /* will be loaded. */ + /* */ + /* size :: A handle to the source face size at which the glyph */ + /* must be scaled/loaded. */ + /* */ + /* glyph_index :: The index of the glyph in the font file. */ + /* */ + /* load_flags :: A flag indicating what to load for this glyph. The */ + /* FT_LOAD_XXX constants can be used to control the */ + /* glyph loading process (e.g., whether the outline */ + /* should be scaled, whether to load bitmaps or not, */ + /* whether to hint the outline, etc). */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Load_Glyph( TT_Size size, + TT_GlyphSlot glyph, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + TT_Face face; + FT_Error error; + TT_LoaderRec loader; + + + face = (TT_Face)glyph->face; + error = TT_Err_Ok; + +#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS + + /* try to load embedded bitmap if any */ + /* */ + /* XXX: The convention should be emphasized in */ + /* the documents because it can be confusing. */ + if ( size->strike_index != 0xFFFFFFFFUL && + ( load_flags & FT_LOAD_NO_BITMAP ) == 0 ) + { + error = load_sbit_image( size, glyph, glyph_index, load_flags ); + if ( !error ) + { + FT_Face root = &face->root; + + + if ( FT_IS_SCALABLE( root ) ) + { + /* for the bbox we need the header only */ + (void)tt_loader_init( &loader, size, glyph, load_flags, TRUE ); + (void)load_truetype_glyph( &loader, glyph_index, 0, TRUE ); + glyph->linearHoriAdvance = loader.linear; + glyph->linearVertAdvance = loader.top_bearing + loader.bbox.yMax - + loader.vadvance; + } + + return TT_Err_Ok; + } + } + +#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ + + /* if FT_LOAD_NO_SCALE is not set, `ttmetrics' must be valid */ + if ( !( load_flags & FT_LOAD_NO_SCALE ) && !size->ttmetrics.valid ) + return TT_Err_Invalid_Size_Handle; + + if ( load_flags & FT_LOAD_SBITS_ONLY ) + return TT_Err_Invalid_Argument; + + error = tt_loader_init( &loader, size, glyph, load_flags, FALSE ); + if ( error ) + return error; + + glyph->format = FT_GLYPH_FORMAT_OUTLINE; + glyph->num_subglyphs = 0; + glyph->outline.flags = 0; + + /* main loading loop */ + error = load_truetype_glyph( &loader, glyph_index, 0, FALSE ); + if ( !error ) + { + if ( glyph->format == FT_GLYPH_FORMAT_COMPOSITE ) + { + glyph->num_subglyphs = loader.gloader->base.num_subglyphs; + glyph->subglyphs = loader.gloader->base.subglyphs; + } + else + { + glyph->outline = loader.gloader->base.outline; + glyph->outline.flags &= ~FT_OUTLINE_SINGLE_PASS; + + /* Translate array so that (0,0) is the glyph's origin. Note */ + /* that this behaviour is independent on the value of bit 1 of */ + /* the `flags' field in the `head' table -- at least major */ + /* applications like Acroread indicate that. */ + if ( loader.pp1.x ) + FT_Outline_Translate( &glyph->outline, -loader.pp1.x, 0 ); + } + +#ifdef TT_USE_BYTECODE_INTERPRETER + + if ( IS_HINTED( load_flags ) ) + { + if ( loader.exec->GS.scan_control ) + { + /* convert scan conversion mode to FT_OUTLINE_XXX flags */ + switch ( loader.exec->GS.scan_type ) + { + case 0: /* simple drop-outs including stubs */ + glyph->outline.flags |= FT_OUTLINE_INCLUDE_STUBS; + break; + case 1: /* simple drop-outs excluding stubs */ + /* nothing; it's the default rendering mode */ + break; + case 4: /* smart drop-outs including stubs */ + glyph->outline.flags |= FT_OUTLINE_SMART_DROPOUTS | + FT_OUTLINE_INCLUDE_STUBS; + break; + case 5: /* smart drop-outs excluding stubs */ + glyph->outline.flags |= FT_OUTLINE_SMART_DROPOUTS; + break; + + default: /* no drop-out control */ + glyph->outline.flags |= FT_OUTLINE_IGNORE_DROPOUTS; + break; + } + } + else + glyph->outline.flags |= FT_OUTLINE_IGNORE_DROPOUTS; + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + compute_glyph_metrics( &loader, glyph_index ); + } + + /* Set the `high precision' bit flag. */ + /* This is _critical_ to get correct output for monochrome */ + /* TrueType glyphs at all sizes using the bytecode interpreter. */ + /* */ + if ( !( load_flags & FT_LOAD_NO_SCALE ) && + size->root.metrics.y_ppem < 24 ) + glyph->outline.flags |= FT_OUTLINE_HIGH_PRECISION; + + return error; + } + + +/* END */ diff --git a/src/truetype/ttgload.h b/src/truetype/ttgload.h new file mode 100644 index 0000000..05f7588 --- /dev/null +++ b/src/truetype/ttgload.h @@ -0,0 +1,61 @@ +/***************************************************************************/ +/* */ +/* ttgload.h */ +/* */ +/* TrueType Glyph Loader (specification). */ +/* */ +/* Copyright 1996-2006, 2008, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTGLOAD_H__ +#define __TTGLOAD_H__ + + +#include +#include "ttobjs.h" + +#ifdef TT_USE_BYTECODE_INTERPRETER +#include "ttinterp.h" +#endif + + +FT_BEGIN_HEADER + + + FT_LOCAL( void ) + TT_Init_Glyph_Loading( TT_Face face ); + + FT_LOCAL( void ) + TT_Get_HMetrics( TT_Face face, + FT_UInt idx, + FT_Short* lsb, + FT_UShort* aw ); + + FT_LOCAL( void ) + TT_Get_VMetrics( TT_Face face, + FT_UInt idx, + FT_Short* tsb, + FT_UShort* ah ); + + FT_LOCAL( FT_Error ) + TT_Load_Glyph( TT_Size size, + TT_GlyphSlot glyph, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + +FT_END_HEADER + +#endif /* __TTGLOAD_H__ */ + + +/* END */ diff --git a/src/truetype/ttgxvar.c b/src/truetype/ttgxvar.c new file mode 100644 index 0000000..69b702f --- /dev/null +++ b/src/truetype/ttgxvar.c @@ -0,0 +1,1551 @@ +/***************************************************************************/ +/* */ +/* ttgxvar.c */ +/* */ +/* TrueType GX Font Variation loader */ +/* */ +/* Copyright 2004-2011 by */ +/* David Turner, Robert Wilhelm, Werner Lemberg, and George Williams. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Apple documents the `fvar', `gvar', `cvar', and `avar' tables at */ + /* */ + /* http://developer.apple.com/fonts/TTRefMan/RM06/Chap6[fgca]var.html */ + /* */ + /* The documentation for `fvar' is inconsistent. At one point it says */ + /* that `countSizePairs' should be 3, at another point 2. It should */ + /* be 2. */ + /* */ + /* The documentation for `gvar' is not intelligible; `cvar' refers you */ + /* to `gvar' and is thus also incomprehensible. */ + /* */ + /* The documentation for `avar' appears correct, but Apple has no fonts */ + /* with an `avar' table, so it is hard to test. */ + /* */ + /* Many thanks to John Jenkins (at Apple) in figuring this out. */ + /* */ + /* */ + /* Apple's `kern' table has some references to tuple indices, but as */ + /* there is no indication where these indices are defined, nor how to */ + /* interpolate the kerning values (different tuples have different */ + /* classes) this issue is ignored. */ + /* */ + /*************************************************************************/ + + +#include +#include FT_INTERNAL_DEBUG_H +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H +#include FT_TRUETYPE_TAGS_H +#include FT_MULTIPLE_MASTERS_H + +#include "ttpload.h" +#include "ttgxvar.h" + +#include "tterrors.h" + + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + + +#define FT_Stream_FTell( stream ) \ + ( (stream)->cursor - (stream)->base ) +#define FT_Stream_SeekSet( stream, off ) \ + ( (stream)->cursor = (stream)->base+(off) ) + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttgxvar + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** Internal Routines *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* The macro ALL_POINTS is used in `ft_var_readpackedpoints'. It */ + /* indicates that there is a delta for every point without needing to */ + /* enumerate all of them. */ + /* */ +#define ALL_POINTS (FT_UShort*)( -1 ) + + +#define GX_PT_POINTS_ARE_WORDS 0x80 +#define GX_PT_POINT_RUN_COUNT_MASK 0x7F + + + /*************************************************************************/ + /* */ + /* */ + /* ft_var_readpackedpoints */ + /* */ + /* */ + /* Read a set of points to which the following deltas will apply. */ + /* Points are packed with a run length encoding. */ + /* */ + /* */ + /* stream :: The data stream. */ + /* */ + /* */ + /* point_cnt :: The number of points read. A zero value means that */ + /* all points in the glyph will be affected, without */ + /* enumerating them individually. */ + /* */ + /* */ + /* An array of FT_UShort containing the affected points or the */ + /* special value ALL_POINTS. */ + /* */ + static FT_UShort* + ft_var_readpackedpoints( FT_Stream stream, + FT_UInt *point_cnt ) + { + FT_UShort *points = NULL; + FT_Int n; + FT_Int runcnt; + FT_Int i; + FT_Int j; + FT_Int first; + FT_Memory memory = stream->memory; + FT_Error error = TT_Err_Ok; + + FT_UNUSED( error ); + + + *point_cnt = n = FT_GET_BYTE(); + if ( n == 0 ) + return ALL_POINTS; + + if ( n & GX_PT_POINTS_ARE_WORDS ) + n = FT_GET_BYTE() | ( ( n & GX_PT_POINT_RUN_COUNT_MASK ) << 8 ); + + if ( FT_NEW_ARRAY( points, n ) ) + return NULL; + + i = 0; + while ( i < n ) + { + runcnt = FT_GET_BYTE(); + if ( runcnt & GX_PT_POINTS_ARE_WORDS ) + { + runcnt = runcnt & GX_PT_POINT_RUN_COUNT_MASK; + first = points[i++] = FT_GET_USHORT(); + + if ( runcnt < 1 || i + runcnt >= n ) + goto Exit; + + /* first point not included in runcount */ + for ( j = 0; j < runcnt; ++j ) + points[i++] = (FT_UShort)( first += FT_GET_USHORT() ); + } + else + { + first = points[i++] = FT_GET_BYTE(); + + if ( runcnt < 1 || i + runcnt >= n ) + goto Exit; + + for ( j = 0; j < runcnt; ++j ) + points[i++] = (FT_UShort)( first += FT_GET_BYTE() ); + } + } + + Exit: + return points; + } + + + enum + { + GX_DT_DELTAS_ARE_ZERO = 0x80, + GX_DT_DELTAS_ARE_WORDS = 0x40, + GX_DT_DELTA_RUN_COUNT_MASK = 0x3F + }; + + + /*************************************************************************/ + /* */ + /* */ + /* ft_var_readpackeddeltas */ + /* */ + /* */ + /* Read a set of deltas. These are packed slightly differently than */ + /* points. In particular there is no overall count. */ + /* */ + /* */ + /* stream :: The data stream. */ + /* */ + /* delta_cnt :: The number of to be read. */ + /* */ + /* */ + /* An array of FT_Short containing the deltas for the affected */ + /* points. (This only gets the deltas for one dimension. It will */ + /* generally be called twice, once for x, once for y. When used in */ + /* cvt table, it will only be called once.) */ + /* */ + static FT_Short* + ft_var_readpackeddeltas( FT_Stream stream, + FT_Offset delta_cnt ) + { + FT_Short *deltas = NULL; + FT_UInt runcnt; + FT_Offset i; + FT_UInt j; + FT_Memory memory = stream->memory; + FT_Error error = TT_Err_Ok; + + FT_UNUSED( error ); + + + if ( FT_NEW_ARRAY( deltas, delta_cnt ) ) + return NULL; + + i = 0; + while ( i < delta_cnt ) + { + runcnt = FT_GET_BYTE(); + if ( runcnt & GX_DT_DELTAS_ARE_ZERO ) + { + /* runcnt zeroes get added */ + for ( j = 0; + j <= ( runcnt & GX_DT_DELTA_RUN_COUNT_MASK ) && i < delta_cnt; + ++j ) + deltas[i++] = 0; + } + else if ( runcnt & GX_DT_DELTAS_ARE_WORDS ) + { + /* runcnt shorts from the stack */ + for ( j = 0; + j <= ( runcnt & GX_DT_DELTA_RUN_COUNT_MASK ) && i < delta_cnt; + ++j ) + deltas[i++] = FT_GET_SHORT(); + } + else + { + /* runcnt signed bytes from the stack */ + for ( j = 0; + j <= ( runcnt & GX_DT_DELTA_RUN_COUNT_MASK ) && i < delta_cnt; + ++j ) + deltas[i++] = FT_GET_CHAR(); + } + + if ( j <= ( runcnt & GX_DT_DELTA_RUN_COUNT_MASK ) ) + { + /* Bad format */ + FT_FREE( deltas ); + return NULL; + } + } + + return deltas; + } + + + /*************************************************************************/ + /* */ + /* */ + /* ft_var_load_avar */ + /* */ + /* */ + /* Parse the `avar' table if present. It need not be, so we return */ + /* nothing. */ + /* */ + /* */ + /* face :: The font face. */ + /* */ + static void + ft_var_load_avar( TT_Face face ) + { + FT_Stream stream = FT_FACE_STREAM(face); + FT_Memory memory = stream->memory; + GX_Blend blend = face->blend; + GX_AVarSegment segment; + FT_Error error = TT_Err_Ok; + FT_ULong version; + FT_Long axisCount; + FT_Int i, j; + FT_ULong table_len; + + FT_UNUSED( error ); + + + blend->avar_checked = TRUE; + if ( (error = face->goto_table( face, TTAG_avar, stream, &table_len )) != 0 ) + return; + + if ( FT_FRAME_ENTER( table_len ) ) + return; + + version = FT_GET_LONG(); + axisCount = FT_GET_LONG(); + + if ( version != 0x00010000L || + axisCount != (FT_Long)blend->mmvar->num_axis ) + goto Exit; + + if ( FT_NEW_ARRAY( blend->avar_segment, axisCount ) ) + goto Exit; + + segment = &blend->avar_segment[0]; + for ( i = 0; i < axisCount; ++i, ++segment ) + { + segment->pairCount = FT_GET_USHORT(); + if ( FT_NEW_ARRAY( segment->correspondence, segment->pairCount ) ) + { + /* Failure. Free everything we have done so far. We must do */ + /* it right now since loading the `avar' table is optional. */ + + for ( j = i - 1; j >= 0; --j ) + FT_FREE( blend->avar_segment[j].correspondence ); + + FT_FREE( blend->avar_segment ); + blend->avar_segment = NULL; + goto Exit; + } + + for ( j = 0; j < segment->pairCount; ++j ) + { + segment->correspondence[j].fromCoord = + FT_GET_SHORT() << 2; /* convert to Fixed */ + segment->correspondence[j].toCoord = + FT_GET_SHORT()<<2; /* convert to Fixed */ + } + } + + Exit: + FT_FRAME_EXIT(); + } + + + typedef struct GX_GVar_Head_ + { + FT_Long version; + FT_UShort axisCount; + FT_UShort globalCoordCount; + FT_ULong offsetToCoord; + FT_UShort glyphCount; + FT_UShort flags; + FT_ULong offsetToData; + + } GX_GVar_Head; + + + /*************************************************************************/ + /* */ + /* */ + /* ft_var_load_gvar */ + /* */ + /* */ + /* Parses the `gvar' table if present. If `fvar' is there, `gvar' */ + /* had better be there too. */ + /* */ + /* */ + /* face :: The font face. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + ft_var_load_gvar( TT_Face face ) + { + FT_Stream stream = FT_FACE_STREAM(face); + FT_Memory memory = stream->memory; + GX_Blend blend = face->blend; + FT_Error error; + FT_UInt i, j; + FT_ULong table_len; + FT_ULong gvar_start; + FT_ULong offsetToData; + GX_GVar_Head gvar_head; + + static const FT_Frame_Field gvar_fields[] = + { + +#undef FT_STRUCTURE +#define FT_STRUCTURE GX_GVar_Head + + FT_FRAME_START( 20 ), + FT_FRAME_LONG ( version ), + FT_FRAME_USHORT( axisCount ), + FT_FRAME_USHORT( globalCoordCount ), + FT_FRAME_ULONG ( offsetToCoord ), + FT_FRAME_USHORT( glyphCount ), + FT_FRAME_USHORT( flags ), + FT_FRAME_ULONG ( offsetToData ), + FT_FRAME_END + }; + + if ( (error = face->goto_table( face, TTAG_gvar, stream, &table_len )) != 0 ) + goto Exit; + + gvar_start = FT_STREAM_POS( ); + if ( FT_STREAM_READ_FIELDS( gvar_fields, &gvar_head ) ) + goto Exit; + + blend->tuplecount = gvar_head.globalCoordCount; + blend->gv_glyphcnt = gvar_head.glyphCount; + offsetToData = gvar_start + gvar_head.offsetToData; + + if ( gvar_head.version != (FT_Long)0x00010000L || + gvar_head.axisCount != (FT_UShort)blend->mmvar->num_axis ) + { + error = TT_Err_Invalid_Table; + goto Exit; + } + + if ( FT_NEW_ARRAY( blend->glyphoffsets, blend->gv_glyphcnt + 1 ) ) + goto Exit; + + if ( gvar_head.flags & 1 ) + { + /* long offsets (one more offset than glyphs, to mark size of last) */ + if ( FT_FRAME_ENTER( ( blend->gv_glyphcnt + 1 ) * 4L ) ) + goto Exit; + + for ( i = 0; i <= blend->gv_glyphcnt; ++i ) + blend->glyphoffsets[i] = offsetToData + FT_GET_LONG(); + + FT_FRAME_EXIT(); + } + else + { + /* short offsets (one more offset than glyphs, to mark size of last) */ + if ( FT_FRAME_ENTER( ( blend->gv_glyphcnt + 1 ) * 2L ) ) + goto Exit; + + for ( i = 0; i <= blend->gv_glyphcnt; ++i ) + blend->glyphoffsets[i] = offsetToData + FT_GET_USHORT() * 2; + /* XXX: Undocumented: `*2'! */ + + FT_FRAME_EXIT(); + } + + if ( blend->tuplecount != 0 ) + { + if ( FT_NEW_ARRAY( blend->tuplecoords, + gvar_head.axisCount * blend->tuplecount ) ) + goto Exit; + + if ( FT_STREAM_SEEK( gvar_start + gvar_head.offsetToCoord ) || + FT_FRAME_ENTER( blend->tuplecount * gvar_head.axisCount * 2L ) ) + goto Exit; + + for ( i = 0; i < blend->tuplecount; ++i ) + for ( j = 0 ; j < (FT_UInt)gvar_head.axisCount; ++j ) + blend->tuplecoords[i * gvar_head.axisCount + j] = + FT_GET_SHORT() << 2; /* convert to FT_Fixed */ + + FT_FRAME_EXIT(); + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* */ + /* ft_var_apply_tuple */ + /* */ + /* */ + /* Figure out whether a given tuple (design) applies to the current */ + /* blend, and if so, what is the scaling factor. */ + /* */ + /* */ + /* blend :: The current blend of the font. */ + /* */ + /* tupleIndex :: A flag saying whether this is an intermediate */ + /* tuple or not. */ + /* */ + /* tuple_coords :: The coordinates of the tuple in normalized axis */ + /* units. */ + /* */ + /* im_start_coords :: The initial coordinates where this tuple starts */ + /* to apply (for intermediate coordinates). */ + /* */ + /* im_end_coords :: The final coordinates after which this tuple no */ + /* longer applies (for intermediate coordinates). */ + /* */ + /* */ + /* An FT_Fixed value containing the scaling factor. */ + /* */ + static FT_Fixed + ft_var_apply_tuple( GX_Blend blend, + FT_UShort tupleIndex, + FT_Fixed* tuple_coords, + FT_Fixed* im_start_coords, + FT_Fixed* im_end_coords ) + { + FT_UInt i; + FT_Fixed apply; + FT_Fixed temp; + + + apply = 0x10000L; + for ( i = 0; i < blend->num_axis; ++i ) + { + if ( tuple_coords[i] == 0 ) + /* It's not clear why (for intermediate tuples) we don't need */ + /* to check against start/end -- the documentation says we don't. */ + /* Similarly, it's unclear why we don't need to scale along the */ + /* axis. */ + continue; + + else if ( blend->normalizedcoords[i] == 0 || + ( blend->normalizedcoords[i] < 0 && tuple_coords[i] > 0 ) || + ( blend->normalizedcoords[i] > 0 && tuple_coords[i] < 0 ) ) + { + apply = 0; + break; + } + + else if ( !( tupleIndex & GX_TI_INTERMEDIATE_TUPLE ) ) + /* not an intermediate tuple */ + apply = FT_MulDiv( apply, + blend->normalizedcoords[i] > 0 + ? blend->normalizedcoords[i] + : -blend->normalizedcoords[i], + 0x10000L ); + + else if ( blend->normalizedcoords[i] <= im_start_coords[i] || + blend->normalizedcoords[i] >= im_end_coords[i] ) + { + apply = 0; + break; + } + + else if ( blend->normalizedcoords[i] < tuple_coords[i] ) + { + temp = FT_MulDiv( blend->normalizedcoords[i] - im_start_coords[i], + 0x10000L, + tuple_coords[i] - im_start_coords[i]); + apply = FT_MulDiv( apply, temp, 0x10000L ); + } + + else + { + temp = FT_MulDiv( im_end_coords[i] - blend->normalizedcoords[i], + 0x10000L, + im_end_coords[i] - tuple_coords[i] ); + apply = FT_MulDiv( apply, temp, 0x10000L ); + } + } + + return apply; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MULTIPLE MASTERS SERVICE FUNCTIONS *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + typedef struct GX_FVar_Head_ + { + FT_Long version; + FT_UShort offsetToData; + FT_UShort countSizePairs; + FT_UShort axisCount; + FT_UShort axisSize; + FT_UShort instanceCount; + FT_UShort instanceSize; + + } GX_FVar_Head; + + + typedef struct fvar_axis_ + { + FT_ULong axisTag; + FT_ULong minValue; + FT_ULong defaultValue; + FT_ULong maxValue; + FT_UShort flags; + FT_UShort nameID; + + } GX_FVar_Axis; + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Get_MM_Var */ + /* */ + /* */ + /* Check that the font's `fvar' table is valid, parse it, and return */ + /* those data. */ + /* */ + /* */ + /* face :: The font face. */ + /* TT_Get_MM_Var initializes the blend structure. */ + /* */ + /* */ + /* master :: The `fvar' data (must be freed by caller). */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Get_MM_Var( TT_Face face, + FT_MM_Var* *master ) + { + FT_Stream stream = face->root.stream; + FT_Memory memory = face->root.memory; + FT_ULong table_len; + FT_Error error = TT_Err_Ok; + FT_ULong fvar_start; + FT_Int i, j; + FT_MM_Var* mmvar = NULL; + FT_Fixed* next_coords; + FT_String* next_name; + FT_Var_Axis* a; + FT_Var_Named_Style* ns; + GX_FVar_Head fvar_head; + + static const FT_Frame_Field fvar_fields[] = + { + +#undef FT_STRUCTURE +#define FT_STRUCTURE GX_FVar_Head + + FT_FRAME_START( 16 ), + FT_FRAME_LONG ( version ), + FT_FRAME_USHORT( offsetToData ), + FT_FRAME_USHORT( countSizePairs ), + FT_FRAME_USHORT( axisCount ), + FT_FRAME_USHORT( axisSize ), + FT_FRAME_USHORT( instanceCount ), + FT_FRAME_USHORT( instanceSize ), + FT_FRAME_END + }; + + static const FT_Frame_Field fvaraxis_fields[] = + { + +#undef FT_STRUCTURE +#define FT_STRUCTURE GX_FVar_Axis + + FT_FRAME_START( 20 ), + FT_FRAME_ULONG ( axisTag ), + FT_FRAME_ULONG ( minValue ), + FT_FRAME_ULONG ( defaultValue ), + FT_FRAME_ULONG ( maxValue ), + FT_FRAME_USHORT( flags ), + FT_FRAME_USHORT( nameID ), + FT_FRAME_END + }; + + + if ( face->blend == NULL ) + { + /* both `fvar' and `gvar' must be present */ + if ( (error = face->goto_table( face, TTAG_gvar, + stream, &table_len )) != 0 ) + goto Exit; + + if ( (error = face->goto_table( face, TTAG_fvar, + stream, &table_len )) != 0 ) + goto Exit; + + fvar_start = FT_STREAM_POS( ); + + if ( FT_STREAM_READ_FIELDS( fvar_fields, &fvar_head ) ) + goto Exit; + + if ( fvar_head.version != (FT_Long)0x00010000L || + fvar_head.countSizePairs != 2 || + fvar_head.axisSize != 20 || + /* axisCount limit implied by 16-bit instanceSize */ + fvar_head.axisCount > 0x3FFE || + fvar_head.instanceSize != 4 + 4 * fvar_head.axisCount || + /* instanceCount limit implied by limited range of name IDs */ + fvar_head.instanceCount > 0x7EFF || + fvar_head.offsetToData + fvar_head.axisCount * 20U + + fvar_head.instanceCount * fvar_head.instanceSize > table_len ) + { + error = TT_Err_Invalid_Table; + goto Exit; + } + + if ( FT_NEW( face->blend ) ) + goto Exit; + + /* cannot overflow 32-bit arithmetic because of limits above */ + face->blend->mmvar_len = + sizeof ( FT_MM_Var ) + + fvar_head.axisCount * sizeof ( FT_Var_Axis ) + + fvar_head.instanceCount * sizeof ( FT_Var_Named_Style ) + + fvar_head.instanceCount * fvar_head.axisCount * sizeof ( FT_Fixed ) + + 5 * fvar_head.axisCount; + + if ( FT_ALLOC( mmvar, face->blend->mmvar_len ) ) + goto Exit; + face->blend->mmvar = mmvar; + + mmvar->num_axis = + fvar_head.axisCount; + mmvar->num_designs = + (FT_UInt)-1; /* meaningless in this context; each glyph */ + /* may have a different number of designs */ + /* (or tuples, as called by Apple) */ + mmvar->num_namedstyles = + fvar_head.instanceCount; + mmvar->axis = + (FT_Var_Axis*)&(mmvar[1]); + mmvar->namedstyle = + (FT_Var_Named_Style*)&(mmvar->axis[fvar_head.axisCount]); + + next_coords = + (FT_Fixed*)&(mmvar->namedstyle[fvar_head.instanceCount]); + for ( i = 0; i < fvar_head.instanceCount; ++i ) + { + mmvar->namedstyle[i].coords = next_coords; + next_coords += fvar_head.axisCount; + } + + next_name = (FT_String*)next_coords; + for ( i = 0; i < fvar_head.axisCount; ++i ) + { + mmvar->axis[i].name = next_name; + next_name += 5; + } + + if ( FT_STREAM_SEEK( fvar_start + fvar_head.offsetToData ) ) + goto Exit; + + a = mmvar->axis; + for ( i = 0; i < fvar_head.axisCount; ++i ) + { + GX_FVar_Axis axis_rec; + + + if ( FT_STREAM_READ_FIELDS( fvaraxis_fields, &axis_rec ) ) + goto Exit; + a->tag = axis_rec.axisTag; + a->minimum = axis_rec.minValue; /* A Fixed */ + a->def = axis_rec.defaultValue; /* A Fixed */ + a->maximum = axis_rec.maxValue; /* A Fixed */ + a->strid = axis_rec.nameID; + + a->name[0] = (FT_String)( a->tag >> 24 ); + a->name[1] = (FT_String)( ( a->tag >> 16 ) & 0xFF ); + a->name[2] = (FT_String)( ( a->tag >> 8 ) & 0xFF ); + a->name[3] = (FT_String)( ( a->tag ) & 0xFF ); + a->name[4] = 0; + + ++a; + } + + ns = mmvar->namedstyle; + for ( i = 0; i < fvar_head.instanceCount; ++i, ++ns ) + { + if ( FT_FRAME_ENTER( 4L + 4L * fvar_head.axisCount ) ) + goto Exit; + + ns->strid = FT_GET_USHORT(); + (void) /* flags = */ FT_GET_USHORT(); + + for ( j = 0; j < fvar_head.axisCount; ++j ) + ns->coords[j] = FT_GET_ULONG(); /* A Fixed */ + + FT_FRAME_EXIT(); + } + } + + if ( master != NULL ) + { + FT_UInt n; + + + if ( FT_ALLOC( mmvar, face->blend->mmvar_len ) ) + goto Exit; + FT_MEM_COPY( mmvar, face->blend->mmvar, face->blend->mmvar_len ); + + mmvar->axis = + (FT_Var_Axis*)&(mmvar[1]); + mmvar->namedstyle = + (FT_Var_Named_Style*)&(mmvar->axis[mmvar->num_axis]); + next_coords = + (FT_Fixed*)&(mmvar->namedstyle[mmvar->num_namedstyles]); + + for ( n = 0; n < mmvar->num_namedstyles; ++n ) + { + mmvar->namedstyle[n].coords = next_coords; + next_coords += mmvar->num_axis; + } + + a = mmvar->axis; + next_name = (FT_String*)next_coords; + for ( n = 0; n < mmvar->num_axis; ++n ) + { + a->name = next_name; + + /* standard PostScript names for some standard apple tags */ + if ( a->tag == TTAG_wght ) + a->name = (char *)"Weight"; + else if ( a->tag == TTAG_wdth ) + a->name = (char *)"Width"; + else if ( a->tag == TTAG_opsz ) + a->name = (char *)"OpticalSize"; + else if ( a->tag == TTAG_slnt ) + a->name = (char *)"Slant"; + + next_name += 5; + ++a; + } + + *master = mmvar; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Set_MM_Blend */ + /* */ + /* */ + /* Set the blend (normalized) coordinates for this instance of the */ + /* font. Check that the `gvar' table is reasonable and does some */ + /* initial preparation. */ + /* */ + /* */ + /* face :: The font. */ + /* Initialize the blend structure with `gvar' data. */ + /* */ + /* */ + /* num_coords :: Must be the axis count of the font. */ + /* */ + /* coords :: An array of num_coords, each between [-1,1]. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Set_MM_Blend( TT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error = TT_Err_Ok; + GX_Blend blend; + FT_MM_Var* mmvar; + FT_UInt i; + FT_Memory memory = face->root.memory; + + enum + { + mcvt_retain, + mcvt_modify, + mcvt_load + + } manageCvt; + + + face->doblend = FALSE; + + if ( face->blend == NULL ) + { + if ( (error = TT_Get_MM_Var( face, NULL)) != 0 ) + goto Exit; + } + + blend = face->blend; + mmvar = blend->mmvar; + + if ( num_coords != mmvar->num_axis ) + { + error = TT_Err_Invalid_Argument; + goto Exit; + } + + for ( i = 0; i < num_coords; ++i ) + if ( coords[i] < -0x00010000L || coords[i] > 0x00010000L ) + { + error = TT_Err_Invalid_Argument; + goto Exit; + } + + if ( blend->glyphoffsets == NULL ) + if ( (error = ft_var_load_gvar( face )) != 0 ) + goto Exit; + + if ( blend->normalizedcoords == NULL ) + { + if ( FT_NEW_ARRAY( blend->normalizedcoords, num_coords ) ) + goto Exit; + + manageCvt = mcvt_modify; + + /* If we have not set the blend coordinates before this, then the */ + /* cvt table will still be what we read from the `cvt ' table and */ + /* we don't need to reload it. We may need to change it though... */ + } + else + { + manageCvt = mcvt_retain; + for ( i = 0; i < num_coords; ++i ) + { + if ( blend->normalizedcoords[i] != coords[i] ) + { + manageCvt = mcvt_load; + break; + } + } + + /* If we don't change the blend coords then we don't need to do */ + /* anything to the cvt table. It will be correct. Otherwise we */ + /* no longer have the original cvt (it was modified when we set */ + /* the blend last time), so we must reload and then modify it. */ + } + + blend->num_axis = num_coords; + FT_MEM_COPY( blend->normalizedcoords, + coords, + num_coords * sizeof ( FT_Fixed ) ); + + face->doblend = TRUE; + + if ( face->cvt != NULL ) + { + switch ( manageCvt ) + { + case mcvt_load: + /* The cvt table has been loaded already; every time we change the */ + /* blend we may need to reload and remodify the cvt table. */ + FT_FREE( face->cvt ); + face->cvt = NULL; + + tt_face_load_cvt( face, face->root.stream ); + break; + + case mcvt_modify: + /* The original cvt table is in memory. All we need to do is */ + /* apply the `cvar' table (if any). */ + tt_face_vary_cvt( face, face->root.stream ); + break; + + case mcvt_retain: + /* The cvt table is correct for this set of coordinates. */ + break; + } + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Set_Var_Design */ + /* */ + /* */ + /* Set the coordinates for the instance, measured in the user */ + /* coordinate system. Parse the `avar' table (if present) to convert */ + /* from user to normalized coordinates. */ + /* */ + /* */ + /* face :: The font face. */ + /* Initialize the blend struct with `gvar' data. */ + /* */ + /* */ + /* num_coords :: This must be the axis count of the font. */ + /* */ + /* coords :: A coordinate array with `num_coords' elements. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Set_Var_Design( TT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error = TT_Err_Ok; + FT_Fixed* normalized = NULL; + GX_Blend blend; + FT_MM_Var* mmvar; + FT_UInt i, j; + FT_Var_Axis* a; + GX_AVarSegment av; + FT_Memory memory = face->root.memory; + + + if ( face->blend == NULL ) + { + if ( (error = TT_Get_MM_Var( face, NULL )) != 0 ) + goto Exit; + } + + blend = face->blend; + mmvar = blend->mmvar; + + if ( num_coords != mmvar->num_axis ) + { + error = TT_Err_Invalid_Argument; + goto Exit; + } + + /* Axis normalization is a two stage process. First we normalize */ + /* based on the [min,def,max] values for the axis to be [-1,0,1]. */ + /* Then, if there's an `avar' table, we renormalize this range. */ + + if ( FT_NEW_ARRAY( normalized, mmvar->num_axis ) ) + goto Exit; + + a = mmvar->axis; + for ( i = 0; i < mmvar->num_axis; ++i, ++a ) + { + if ( coords[i] > a->maximum || coords[i] < a->minimum ) + { + error = TT_Err_Invalid_Argument; + goto Exit; + } + + if ( coords[i] < a->def ) + { + normalized[i] = -FT_MulDiv( coords[i] - a->def, + 0x10000L, + a->minimum - a->def ); + } + else if ( a->maximum == a->def ) + normalized[i] = 0; + else + { + normalized[i] = FT_MulDiv( coords[i] - a->def, + 0x10000L, + a->maximum - a->def ); + } + } + + if ( !blend->avar_checked ) + ft_var_load_avar( face ); + + if ( blend->avar_segment != NULL ) + { + av = blend->avar_segment; + for ( i = 0; i < mmvar->num_axis; ++i, ++av ) + { + for ( j = 1; j < (FT_UInt)av->pairCount; ++j ) + if ( normalized[i] < av->correspondence[j].fromCoord ) + { + normalized[i] = + FT_MulDiv( + FT_MulDiv( + normalized[i] - av->correspondence[j - 1].fromCoord, + 0x10000L, + av->correspondence[j].fromCoord - + av->correspondence[j - 1].fromCoord ), + av->correspondence[j].toCoord - + av->correspondence[j - 1].toCoord, + 0x10000L ) + + av->correspondence[j - 1].toCoord; + break; + } + } + } + + error = TT_Set_MM_Blend( face, num_coords, normalized ); + + Exit: + FT_FREE( normalized ); + return error; + } + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** GX VAR PARSING ROUTINES *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* tt_face_vary_cvt */ + /* */ + /* */ + /* Modify the loaded cvt table according to the `cvar' table and the */ + /* font's blend. */ + /* */ + /* */ + /* face :: A handle to the target face object. */ + /* */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + /* Most errors are ignored. It is perfectly valid not to have a */ + /* `cvar' table even if there is a `gvar' and `fvar' table. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_vary_cvt( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + FT_Memory memory = stream->memory; + FT_ULong table_start; + FT_ULong table_len; + FT_UInt tupleCount; + FT_ULong offsetToData; + FT_ULong here; + FT_UInt i, j; + FT_Fixed* tuple_coords = NULL; + FT_Fixed* im_start_coords = NULL; + FT_Fixed* im_end_coords = NULL; + GX_Blend blend = face->blend; + FT_UInt point_count; + FT_UShort* localpoints; + FT_Short* deltas; + + + FT_TRACE2(( "CVAR " )); + + if ( blend == NULL ) + { + FT_TRACE2(( "tt_face_vary_cvt: no blend specified\n" )); + + error = TT_Err_Ok; + goto Exit; + } + + if ( face->cvt == NULL ) + { + FT_TRACE2(( "tt_face_vary_cvt: no `cvt ' table\n" )); + + error = TT_Err_Ok; + goto Exit; + } + + error = face->goto_table( face, TTAG_cvar, stream, &table_len ); + if ( error ) + { + FT_TRACE2(( "is missing\n" )); + + error = TT_Err_Ok; + goto Exit; + } + + if ( FT_FRAME_ENTER( table_len ) ) + { + error = TT_Err_Ok; + goto Exit; + } + + table_start = FT_Stream_FTell( stream ); + if ( FT_GET_LONG() != 0x00010000L ) + { + FT_TRACE2(( "bad table version\n" )); + + error = TT_Err_Ok; + goto FExit; + } + + if ( FT_NEW_ARRAY( tuple_coords, blend->num_axis ) || + FT_NEW_ARRAY( im_start_coords, blend->num_axis ) || + FT_NEW_ARRAY( im_end_coords, blend->num_axis ) ) + goto FExit; + + tupleCount = FT_GET_USHORT(); + offsetToData = table_start + FT_GET_USHORT(); + + /* The documentation implies there are flags packed into the */ + /* tuplecount, but John Jenkins says that shared points don't apply */ + /* to `cvar', and no other flags are defined. */ + + for ( i = 0; i < ( tupleCount & 0xFFF ); ++i ) + { + FT_UInt tupleDataSize; + FT_UInt tupleIndex; + FT_Fixed apply; + + + tupleDataSize = FT_GET_USHORT(); + tupleIndex = FT_GET_USHORT(); + + /* There is no provision here for a global tuple coordinate section, */ + /* so John says. There are no tuple indices, just embedded tuples. */ + + if ( tupleIndex & GX_TI_EMBEDDED_TUPLE_COORD ) + { + for ( j = 0; j < blend->num_axis; ++j ) + tuple_coords[j] = FT_GET_SHORT() << 2; /* convert from */ + /* short frac to fixed */ + } + else + { + /* skip this tuple; it makes no sense */ + + if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE ) + for ( j = 0; j < 2 * blend->num_axis; ++j ) + (void)FT_GET_SHORT(); + + offsetToData += tupleDataSize; + continue; + } + + if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE ) + { + for ( j = 0; j < blend->num_axis; ++j ) + im_start_coords[j] = FT_GET_SHORT() << 2; + for ( j = 0; j < blend->num_axis; ++j ) + im_end_coords[j] = FT_GET_SHORT() << 2; + } + + apply = ft_var_apply_tuple( blend, + (FT_UShort)tupleIndex, + tuple_coords, + im_start_coords, + im_end_coords ); + if ( /* tuple isn't active for our blend */ + apply == 0 || + /* global points not allowed, */ + /* if they aren't local, makes no sense */ + !( tupleIndex & GX_TI_PRIVATE_POINT_NUMBERS ) ) + { + offsetToData += tupleDataSize; + continue; + } + + here = FT_Stream_FTell( stream ); + + FT_Stream_SeekSet( stream, offsetToData ); + + localpoints = ft_var_readpackedpoints( stream, &point_count ); + deltas = ft_var_readpackeddeltas( stream, + point_count == 0 ? face->cvt_size + : point_count ); + if ( localpoints == NULL || deltas == NULL ) + /* failure, ignore it */; + + else if ( localpoints == ALL_POINTS ) + { + /* this means that there are deltas for every entry in cvt */ + for ( j = 0; j < face->cvt_size; ++j ) + face->cvt[j] = (FT_Short)( face->cvt[j] + + FT_MulFix( deltas[j], apply ) ); + } + + else + { + for ( j = 0; j < point_count; ++j ) + { + int pindex = localpoints[j]; + + face->cvt[pindex] = (FT_Short)( face->cvt[pindex] + + FT_MulFix( deltas[j], apply ) ); + } + } + + if ( localpoints != ALL_POINTS ) + FT_FREE( localpoints ); + FT_FREE( deltas ); + + offsetToData += tupleDataSize; + + FT_Stream_SeekSet( stream, here ); + } + + FExit: + FT_FRAME_EXIT(); + + Exit: + FT_FREE( tuple_coords ); + FT_FREE( im_start_coords ); + FT_FREE( im_end_coords ); + + return error; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Vary_Get_Glyph_Deltas */ + /* */ + /* */ + /* Load the appropriate deltas for the current glyph. */ + /* */ + /* */ + /* face :: A handle to the target face object. */ + /* */ + /* glyph_index :: The index of the glyph being modified. */ + /* */ + /* n_points :: The number of the points in the glyph, including */ + /* phantom points. */ + /* */ + /* */ + /* deltas :: The array of points to change. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Vary_Get_Glyph_Deltas( TT_Face face, + FT_UInt glyph_index, + FT_Vector* *deltas, + FT_UInt n_points ) + { + FT_Stream stream = face->root.stream; + FT_Memory memory = stream->memory; + GX_Blend blend = face->blend; + FT_Vector* delta_xy = NULL; + + FT_Error error; + FT_ULong glyph_start; + FT_UInt tupleCount; + FT_ULong offsetToData; + FT_ULong here; + FT_UInt i, j; + FT_Fixed* tuple_coords = NULL; + FT_Fixed* im_start_coords = NULL; + FT_Fixed* im_end_coords = NULL; + FT_UInt point_count, spoint_count = 0; + FT_UShort* sharedpoints = NULL; + FT_UShort* localpoints = NULL; + FT_UShort* points; + FT_Short *deltas_x, *deltas_y; + + + if ( !face->doblend || blend == NULL ) + return TT_Err_Invalid_Argument; + + /* to be freed by the caller */ + if ( FT_NEW_ARRAY( delta_xy, n_points ) ) + goto Exit; + *deltas = delta_xy; + + if ( glyph_index >= blend->gv_glyphcnt || + blend->glyphoffsets[glyph_index] == + blend->glyphoffsets[glyph_index + 1] ) + return TT_Err_Ok; /* no variation data for this glyph */ + + if ( FT_STREAM_SEEK( blend->glyphoffsets[glyph_index] ) || + FT_FRAME_ENTER( blend->glyphoffsets[glyph_index + 1] - + blend->glyphoffsets[glyph_index] ) ) + goto Fail1; + + glyph_start = FT_Stream_FTell( stream ); + + /* each set of glyph variation data is formatted similarly to `cvar' */ + /* (except we get shared points and global tuples) */ + + if ( FT_NEW_ARRAY( tuple_coords, blend->num_axis ) || + FT_NEW_ARRAY( im_start_coords, blend->num_axis ) || + FT_NEW_ARRAY( im_end_coords, blend->num_axis ) ) + goto Fail2; + + tupleCount = FT_GET_USHORT(); + offsetToData = glyph_start + FT_GET_USHORT(); + + if ( tupleCount & GX_TC_TUPLES_SHARE_POINT_NUMBERS ) + { + here = FT_Stream_FTell( stream ); + + FT_Stream_SeekSet( stream, offsetToData ); + + sharedpoints = ft_var_readpackedpoints( stream, &spoint_count ); + offsetToData = FT_Stream_FTell( stream ); + + FT_Stream_SeekSet( stream, here ); + } + + for ( i = 0; i < ( tupleCount & GX_TC_TUPLE_COUNT_MASK ); ++i ) + { + FT_UInt tupleDataSize; + FT_UInt tupleIndex; + FT_Fixed apply; + + + tupleDataSize = FT_GET_USHORT(); + tupleIndex = FT_GET_USHORT(); + + if ( tupleIndex & GX_TI_EMBEDDED_TUPLE_COORD ) + { + for ( j = 0; j < blend->num_axis; ++j ) + tuple_coords[j] = FT_GET_SHORT() << 2; /* convert from */ + /* short frac to fixed */ + } + else if ( ( tupleIndex & GX_TI_TUPLE_INDEX_MASK ) >= blend->tuplecount ) + { + error = TT_Err_Invalid_Table; + goto Fail3; + } + else + { + FT_MEM_COPY( + tuple_coords, + &blend->tuplecoords[(tupleIndex & 0xFFF) * blend->num_axis], + blend->num_axis * sizeof ( FT_Fixed ) ); + } + + if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE ) + { + for ( j = 0; j < blend->num_axis; ++j ) + im_start_coords[j] = FT_GET_SHORT() << 2; + for ( j = 0; j < blend->num_axis; ++j ) + im_end_coords[j] = FT_GET_SHORT() << 2; + } + + apply = ft_var_apply_tuple( blend, + (FT_UShort)tupleIndex, + tuple_coords, + im_start_coords, + im_end_coords ); + + if ( apply == 0 ) /* tuple isn't active for our blend */ + { + offsetToData += tupleDataSize; + continue; + } + + here = FT_Stream_FTell( stream ); + + if ( tupleIndex & GX_TI_PRIVATE_POINT_NUMBERS ) + { + FT_Stream_SeekSet( stream, offsetToData ); + + localpoints = ft_var_readpackedpoints( stream, &point_count ); + points = localpoints; + } + else + { + points = sharedpoints; + point_count = spoint_count; + } + + deltas_x = ft_var_readpackeddeltas( stream, + point_count == 0 ? n_points + : point_count ); + deltas_y = ft_var_readpackeddeltas( stream, + point_count == 0 ? n_points + : point_count ); + + if ( points == NULL || deltas_y == NULL || deltas_x == NULL ) + ; /* failure, ignore it */ + + else if ( points == ALL_POINTS ) + { + /* this means that there are deltas for every point in the glyph */ + for ( j = 0; j < n_points; ++j ) + { + delta_xy[j].x += FT_MulFix( deltas_x[j], apply ); + delta_xy[j].y += FT_MulFix( deltas_y[j], apply ); + } + } + + else + { + for ( j = 0; j < point_count; ++j ) + { + if ( localpoints[j] >= n_points ) + continue; + + delta_xy[localpoints[j]].x += FT_MulFix( deltas_x[j], apply ); + delta_xy[localpoints[j]].y += FT_MulFix( deltas_y[j], apply ); + } + } + + if ( localpoints != ALL_POINTS ) + FT_FREE( localpoints ); + FT_FREE( deltas_x ); + FT_FREE( deltas_y ); + + offsetToData += tupleDataSize; + + FT_Stream_SeekSet( stream, here ); + } + + Fail3: + FT_FREE( tuple_coords ); + FT_FREE( im_start_coords ); + FT_FREE( im_end_coords ); + + Fail2: + FT_FRAME_EXIT(); + + Fail1: + if ( error ) + { + FT_FREE( delta_xy ); + *deltas = NULL; + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_done_blend */ + /* */ + /* */ + /* Frees the blend internal data structure. */ + /* */ + FT_LOCAL_DEF( void ) + tt_done_blend( FT_Memory memory, + GX_Blend blend ) + { + if ( blend != NULL ) + { + FT_UInt i; + + + FT_FREE( blend->normalizedcoords ); + FT_FREE( blend->mmvar ); + + if ( blend->avar_segment != NULL ) + { + for ( i = 0; i < blend->num_axis; ++i ) + FT_FREE( blend->avar_segment[i].correspondence ); + FT_FREE( blend->avar_segment ); + } + + FT_FREE( blend->tuplecoords ); + FT_FREE( blend->glyphoffsets ); + FT_FREE( blend ); + } + } + +#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ + + +/* END */ diff --git a/src/truetype/ttgxvar.h b/src/truetype/ttgxvar.h new file mode 100644 index 0000000..82dfc44 --- /dev/null +++ b/src/truetype/ttgxvar.h @@ -0,0 +1,182 @@ +/***************************************************************************/ +/* */ +/* ttgxvar.h */ +/* */ +/* TrueType GX Font Variation loader (specification) */ +/* */ +/* Copyright 2004 by */ +/* David Turner, Robert Wilhelm, Werner Lemberg and George Williams. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTGXVAR_H__ +#define __TTGXVAR_H__ + + +#include +#include "ttobjs.h" + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* */ + /* GX_AVarCorrespondenceRec */ + /* */ + /* */ + /* A data structure representing `shortFracCorrespondence' in `avar' */ + /* table according to the specifications from Apple. */ + /* */ + typedef struct GX_AVarCorrespondenceRec_ + { + FT_Fixed fromCoord; + FT_Fixed toCoord; + + } GX_AVarCorrespondenceRec_, *GX_AVarCorrespondence; + + + /*************************************************************************/ + /* */ + /* */ + /* GX_AVarRec */ + /* */ + /* */ + /* Data from the segment field of `avar' table. */ + /* There is one of these for each axis. */ + /* */ + typedef struct GX_AVarSegmentRec_ + { + FT_UShort pairCount; + GX_AVarCorrespondence correspondence; /* array with pairCount entries */ + + } GX_AVarSegmentRec, *GX_AVarSegment; + + + /*************************************************************************/ + /* */ + /* */ + /* GX_BlendRec */ + /* */ + /* */ + /* Data for interpolating a font from a distortable font specified */ + /* by the GX *var tables ([fgca]var). */ + /* */ + /* */ + /* num_axis :: The number of axes along which interpolation */ + /* may happen */ + /* */ + /* normalizedcoords :: A normalized value (between [-1,1]) indicating */ + /* the contribution along each axis to the final */ + /* interpolated font. */ + /* */ + typedef struct GX_BlendRec_ + { + FT_UInt num_axis; + FT_Fixed* normalizedcoords; + + FT_MM_Var* mmvar; + FT_Offset mmvar_len; + + FT_Bool avar_checked; + GX_AVarSegment avar_segment; + + FT_UInt tuplecount; /* shared tuples in `gvar' */ + FT_Fixed* tuplecoords; /* tuplecoords[tuplecount][num_axis] */ + + FT_UInt gv_glyphcnt; + FT_ULong* glyphoffsets; + + } GX_BlendRec; + + + /*************************************************************************/ + /* */ + /* */ + /* GX_TupleCountFlags */ + /* */ + /* */ + /* Flags used within the `TupleCount' field of the `gvar' table. */ + /* */ + typedef enum GX_TupleCountFlags_ + { + GX_TC_TUPLES_SHARE_POINT_NUMBERS = 0x8000, + GX_TC_RESERVED_TUPLE_FLAGS = 0x7000, + GX_TC_TUPLE_COUNT_MASK = 0x0FFF + + } GX_TupleCountFlags; + + + /*************************************************************************/ + /* */ + /* */ + /* GX_TupleIndexFlags */ + /* */ + /* */ + /* Flags used within the `TupleIndex' field of the `gvar' and `cvar' */ + /* tables. */ + /* */ + typedef enum GX_TupleIndexFlags_ + { + GX_TI_EMBEDDED_TUPLE_COORD = 0x8000, + GX_TI_INTERMEDIATE_TUPLE = 0x4000, + GX_TI_PRIVATE_POINT_NUMBERS = 0x2000, + GX_TI_RESERVED_TUPLE_FLAG = 0x1000, + GX_TI_TUPLE_INDEX_MASK = 0x0FFF + + } GX_TupleIndexFlags; + + +#define TTAG_wght FT_MAKE_TAG( 'w', 'g', 'h', 't' ) +#define TTAG_wdth FT_MAKE_TAG( 'w', 'd', 't', 'h' ) +#define TTAG_opsz FT_MAKE_TAG( 'o', 'p', 's', 'z' ) +#define TTAG_slnt FT_MAKE_TAG( 's', 'l', 'n', 't' ) + + + FT_LOCAL( FT_Error ) + TT_Set_MM_Blend( TT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + FT_LOCAL( FT_Error ) + TT_Set_Var_Design( TT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + FT_LOCAL( FT_Error ) + TT_Get_MM_Var( TT_Face face, + FT_MM_Var* *master ); + + + FT_LOCAL( FT_Error ) + tt_face_vary_cvt( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + TT_Vary_Get_Glyph_Deltas( TT_Face face, + FT_UInt glyph_index, + FT_Vector* *deltas, + FT_UInt n_points ); + + + FT_LOCAL( void ) + tt_done_blend( FT_Memory memory, + GX_Blend blend ); + + +FT_END_HEADER + + +#endif /* __TTGXVAR_H__ */ + + +/* END */ diff --git a/src/truetype/ttinterp.c b/src/truetype/ttinterp.c new file mode 100644 index 0000000..3acb24a --- /dev/null +++ b/src/truetype/ttinterp.c @@ -0,0 +1,8267 @@ +/***************************************************************************/ +/* */ +/* ttinterp.c */ +/* */ +/* TrueType bytecode interpreter (body). */ +/* */ +/* Copyright 1996-2012 */ +/* by David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +/* Greg Hitchcock from Microsoft has helped a lot in resolving unclear */ +/* issues; many thanks! */ + + +#include +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_CALC_H +#include FT_TRIGONOMETRY_H +#include FT_SYSTEM_H + +#include "ttinterp.h" + +#include "tterrors.h" + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + +#define TT_MULFIX FT_MulFix +#define TT_MULDIV FT_MulDiv +#define TT_MULDIV_NO_ROUND FT_MulDiv_No_Round + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttinterp + + /*************************************************************************/ + /* */ + /* In order to detect infinite loops in the code, we set up a counter */ + /* within the run loop. A single stroke of interpretation is now */ + /* limited to a maximal number of opcodes defined below. */ + /* */ +#define MAX_RUNNABLE_OPCODES 1000000L + + + /*************************************************************************/ + /* */ + /* There are two kinds of implementations: */ + /* */ + /* a. static implementation */ + /* */ + /* The current execution context is a static variable, which fields */ + /* are accessed directly by the interpreter during execution. The */ + /* context is named `cur'. */ + /* */ + /* This version is non-reentrant, of course. */ + /* */ + /* b. indirect implementation */ + /* */ + /* The current execution context is passed to _each_ function as its */ + /* first argument, and each field is thus accessed indirectly. */ + /* */ + /* This version is fully re-entrant. */ + /* */ + /* The idea is that an indirect implementation may be slower to execute */ + /* on low-end processors that are used in some systems (like 386s or */ + /* even 486s). */ + /* */ + /* As a consequence, the indirect implementation is now the default, as */ + /* its performance costs can be considered negligible in our context. */ + /* Note, however, that we kept the same source with macros because: */ + /* */ + /* - The code is kept very close in design to the Pascal code used for */ + /* development. */ + /* */ + /* - It's much more readable that way! */ + /* */ + /* - It's still open to experimentation and tuning. */ + /* */ + /*************************************************************************/ + + +#ifndef TT_CONFIG_OPTION_STATIC_INTERPRETER /* indirect implementation */ + +#define CUR (*exc) /* see ttobjs.h */ + + /*************************************************************************/ + /* */ + /* This macro is used whenever `exec' is unused in a function, to avoid */ + /* stupid warnings from pedantic compilers. */ + /* */ +#define FT_UNUSED_EXEC FT_UNUSED( exc ) + +#else /* static implementation */ + +#define CUR cur + +#define FT_UNUSED_EXEC int __dummy = __dummy + + static + TT_ExecContextRec cur; /* static exec. context variable */ + + /* apparently, we have a _lot_ of direct indexing when accessing */ + /* the static `cur', which makes the code bigger (due to all the */ + /* four bytes addresses). */ + +#endif /* TT_CONFIG_OPTION_STATIC_INTERPRETER */ + + + /*************************************************************************/ + /* */ + /* The instruction argument stack. */ + /* */ +#define INS_ARG EXEC_OP_ FT_Long* args /* see ttobjs.h for EXEC_OP_ */ + + + /*************************************************************************/ + /* */ + /* This macro is used whenever `args' is unused in a function, to avoid */ + /* stupid warnings from pedantic compilers. */ + /* */ +#define FT_UNUSED_ARG FT_UNUSED_EXEC; FT_UNUSED( args ) + + + /*************************************************************************/ + /* */ + /* The following macros hide the use of EXEC_ARG and EXEC_ARG_ to */ + /* increase readability of the code. */ + /* */ + /*************************************************************************/ + + +#define SKIP_Code() \ + SkipCode( EXEC_ARG ) + +#define GET_ShortIns() \ + GetShortIns( EXEC_ARG ) + +#define NORMalize( x, y, v ) \ + Normalize( EXEC_ARG_ x, y, v ) + +#define SET_SuperRound( scale, flags ) \ + SetSuperRound( EXEC_ARG_ scale, flags ) + +#define ROUND_None( d, c ) \ + Round_None( EXEC_ARG_ d, c ) + +#define INS_Goto_CodeRange( range, ip ) \ + Ins_Goto_CodeRange( EXEC_ARG_ range, ip ) + +#define CUR_Func_move( z, p, d ) \ + CUR.func_move( EXEC_ARG_ z, p, d ) + +#define CUR_Func_move_orig( z, p, d ) \ + CUR.func_move_orig( EXEC_ARG_ z, p, d ) + +#define CUR_Func_round( d, c ) \ + CUR.func_round( EXEC_ARG_ d, c ) + +#define CUR_Func_read_cvt( index ) \ + CUR.func_read_cvt( EXEC_ARG_ index ) + +#define CUR_Func_write_cvt( index, val ) \ + CUR.func_write_cvt( EXEC_ARG_ index, val ) + +#define CUR_Func_move_cvt( index, val ) \ + CUR.func_move_cvt( EXEC_ARG_ index, val ) + +#define CURRENT_Ratio() \ + Current_Ratio( EXEC_ARG ) + +#define CURRENT_Ppem() \ + Current_Ppem( EXEC_ARG ) + +#define CUR_Ppem() \ + Cur_PPEM( EXEC_ARG ) + +#define INS_SxVTL( a, b, c, d ) \ + Ins_SxVTL( EXEC_ARG_ a, b, c, d ) + +#define COMPUTE_Funcs() \ + Compute_Funcs( EXEC_ARG ) + +#define COMPUTE_Round( a ) \ + Compute_Round( EXEC_ARG_ a ) + +#define COMPUTE_Point_Displacement( a, b, c, d ) \ + Compute_Point_Displacement( EXEC_ARG_ a, b, c, d ) + +#define MOVE_Zp2_Point( a, b, c, t ) \ + Move_Zp2_Point( EXEC_ARG_ a, b, c, t ) + + +#define CUR_Func_project( v1, v2 ) \ + CUR.func_project( EXEC_ARG_ (v1)->x - (v2)->x, (v1)->y - (v2)->y ) + +#define CUR_Func_dualproj( v1, v2 ) \ + CUR.func_dualproj( EXEC_ARG_ (v1)->x - (v2)->x, (v1)->y - (v2)->y ) + +#define CUR_fast_project( v ) \ + CUR.func_project( EXEC_ARG_ (v)->x, (v)->y ) + +#define CUR_fast_dualproj( v ) \ + CUR.func_dualproj( EXEC_ARG_ (v)->x, (v)->y ) + + + /*************************************************************************/ + /* */ + /* Instruction dispatch function, as used by the interpreter. */ + /* */ + typedef void (*TInstruction_Function)( INS_ARG ); + + + /*************************************************************************/ + /* */ + /* Two simple bounds-checking macros. */ + /* */ +#define BOUNDS( x, n ) ( (FT_UInt)(x) >= (FT_UInt)(n) ) +#define BOUNDSL( x, n ) ( (FT_ULong)(x) >= (FT_ULong)(n) ) + +#undef SUCCESS +#define SUCCESS 0 + +#undef FAILURE +#define FAILURE 1 + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING +#define GUESS_VECTOR( V ) \ + if ( CUR.face->unpatented_hinting ) \ + { \ + CUR.GS.V.x = (FT_F2Dot14)( CUR.GS.both_x_axis ? 0x4000 : 0 ); \ + CUR.GS.V.y = (FT_F2Dot14)( CUR.GS.both_x_axis ? 0 : 0x4000 ); \ + } +#else +#define GUESS_VECTOR( V ) +#endif + + /*************************************************************************/ + /* */ + /* CODERANGE FUNCTIONS */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Goto_CodeRange */ + /* */ + /* */ + /* Switches to a new code range (updates the code related elements in */ + /* `exec', and `IP'). */ + /* */ + /* */ + /* range :: The new execution code range. */ + /* */ + /* IP :: The new IP in the new code range. */ + /* */ + /* */ + /* exec :: The target execution context. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Goto_CodeRange( TT_ExecContext exec, + FT_Int range, + FT_Long IP ) + { + TT_CodeRange* coderange; + + + FT_ASSERT( range >= 1 && range <= 3 ); + + coderange = &exec->codeRangeTable[range - 1]; + + FT_ASSERT( coderange->base != NULL ); + + /* NOTE: Because the last instruction of a program may be a CALL */ + /* which will return to the first byte *after* the code */ + /* range, we test for IP <= Size instead of IP < Size. */ + /* */ + FT_ASSERT( (FT_ULong)IP <= coderange->size ); + + exec->code = coderange->base; + exec->codeSize = coderange->size; + exec->IP = IP; + exec->curRange = range; + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Set_CodeRange */ + /* */ + /* */ + /* Sets a code range. */ + /* */ + /* */ + /* range :: The code range index. */ + /* */ + /* base :: The new code base. */ + /* */ + /* length :: The range size in bytes. */ + /* */ + /* */ + /* exec :: The target execution context. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Set_CodeRange( TT_ExecContext exec, + FT_Int range, + void* base, + FT_Long length ) + { + FT_ASSERT( range >= 1 && range <= 3 ); + + exec->codeRangeTable[range - 1].base = (FT_Byte*)base; + exec->codeRangeTable[range - 1].size = length; + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Clear_CodeRange */ + /* */ + /* */ + /* Clears a code range. */ + /* */ + /* */ + /* range :: The code range index. */ + /* */ + /* */ + /* exec :: The target execution context. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + /* */ + /* Does not set the Error variable. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Clear_CodeRange( TT_ExecContext exec, + FT_Int range ) + { + FT_ASSERT( range >= 1 && range <= 3 ); + + exec->codeRangeTable[range - 1].base = NULL; + exec->codeRangeTable[range - 1].size = 0; + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* EXECUTION CONTEXT ROUTINES */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Done_Context */ + /* */ + /* */ + /* Destroys a given context. */ + /* */ + /* */ + /* exec :: A handle to the target execution context. */ + /* */ + /* memory :: A handle to the parent memory object. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + /* */ + /* Only the glyph loader and debugger should call this function. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Done_Context( TT_ExecContext exec ) + { + FT_Memory memory = exec->memory; + + + /* points zone */ + exec->maxPoints = 0; + exec->maxContours = 0; + + /* free stack */ + FT_FREE( exec->stack ); + exec->stackSize = 0; + + /* free call stack */ + FT_FREE( exec->callStack ); + exec->callSize = 0; + exec->callTop = 0; + + /* free glyph code range */ + FT_FREE( exec->glyphIns ); + exec->glyphSize = 0; + + exec->size = NULL; + exec->face = NULL; + + FT_FREE( exec ); + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Init_Context */ + /* */ + /* */ + /* Initializes a context object. */ + /* */ + /* */ + /* memory :: A handle to the parent memory object. */ + /* */ + /* */ + /* exec :: A handle to the target execution context. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + static FT_Error + Init_Context( TT_ExecContext exec, + FT_Memory memory ) + { + FT_Error error; + + + FT_TRACE1(( "Init_Context: new object at 0x%08p\n", exec )); + + exec->memory = memory; + exec->callSize = 32; + + if ( FT_NEW_ARRAY( exec->callStack, exec->callSize ) ) + goto Fail_Memory; + + /* all values in the context are set to 0 already, but this is */ + /* here as a remainder */ + exec->maxPoints = 0; + exec->maxContours = 0; + + exec->stackSize = 0; + exec->glyphSize = 0; + + exec->stack = NULL; + exec->glyphIns = NULL; + + exec->face = NULL; + exec->size = NULL; + + return TT_Err_Ok; + + Fail_Memory: + FT_ERROR(( "Init_Context: not enough memory for %p\n", exec )); + TT_Done_Context( exec ); + + return error; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Update_Max */ + /* */ + /* */ + /* Checks the size of a buffer and reallocates it if necessary. */ + /* */ + /* */ + /* memory :: A handle to the parent memory object. */ + /* */ + /* multiplier :: The size in bytes of each element in the buffer. */ + /* */ + /* new_max :: The new capacity (size) of the buffer. */ + /* */ + /* */ + /* size :: The address of the buffer's current size expressed */ + /* in elements. */ + /* */ + /* buff :: The address of the buffer base pointer. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + Update_Max( FT_Memory memory, + FT_ULong* size, + FT_Long multiplier, + void* _pbuff, + FT_ULong new_max ) + { + FT_Error error; + void** pbuff = (void**)_pbuff; + + + if ( *size < new_max ) + { + if ( FT_REALLOC( *pbuff, *size * multiplier, new_max * multiplier ) ) + return error; + *size = new_max; + } + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Load_Context */ + /* */ + /* */ + /* Prepare an execution context for glyph hinting. */ + /* */ + /* */ + /* face :: A handle to the source face object. */ + /* */ + /* size :: A handle to the source size object. */ + /* */ + /* */ + /* exec :: A handle to the target execution context. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + /* */ + /* Only the glyph loader and debugger should call this function. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Load_Context( TT_ExecContext exec, + TT_Face face, + TT_Size size ) + { + FT_Int i; + FT_ULong tmp; + TT_MaxProfile* maxp; + FT_Error error; + + + exec->face = face; + maxp = &face->max_profile; + exec->size = size; + + if ( size ) + { + exec->numFDefs = size->num_function_defs; + exec->maxFDefs = size->max_function_defs; + exec->numIDefs = size->num_instruction_defs; + exec->maxIDefs = size->max_instruction_defs; + exec->FDefs = size->function_defs; + exec->IDefs = size->instruction_defs; + exec->tt_metrics = size->ttmetrics; + exec->metrics = size->metrics; + + exec->maxFunc = size->max_func; + exec->maxIns = size->max_ins; + + for ( i = 0; i < TT_MAX_CODE_RANGES; i++ ) + exec->codeRangeTable[i] = size->codeRangeTable[i]; + + /* set graphics state */ + exec->GS = size->GS; + + exec->cvtSize = size->cvt_size; + exec->cvt = size->cvt; + + exec->storeSize = size->storage_size; + exec->storage = size->storage; + + exec->twilight = size->twilight; + + /* In case of multi-threading it can happen that the old size object */ + /* no longer exists, thus we must clear all glyph zone references. */ + ft_memset( &exec->zp0, 0, sizeof ( exec->zp0 ) ); + exec->zp1 = exec->zp0; + exec->zp2 = exec->zp0; + } + + /* XXX: We reserve a little more elements on the stack to deal safely */ + /* with broken fonts like arialbs, courbs, timesbs, etc. */ + tmp = exec->stackSize; + error = Update_Max( exec->memory, + &tmp, + sizeof ( FT_F26Dot6 ), + (void*)&exec->stack, + maxp->maxStackElements + 32 ); + exec->stackSize = (FT_UInt)tmp; + if ( error ) + return error; + + tmp = exec->glyphSize; + error = Update_Max( exec->memory, + &tmp, + sizeof ( FT_Byte ), + (void*)&exec->glyphIns, + maxp->maxSizeOfInstructions ); + exec->glyphSize = (FT_UShort)tmp; + if ( error ) + return error; + + exec->pts.n_points = 0; + exec->pts.n_contours = 0; + + exec->zp1 = exec->pts; + exec->zp2 = exec->pts; + exec->zp0 = exec->pts; + + exec->instruction_trap = FALSE; + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Save_Context */ + /* */ + /* */ + /* Saves the code ranges in a `size' object. */ + /* */ + /* */ + /* exec :: A handle to the source execution context. */ + /* */ + /* */ + /* size :: A handle to the target size object. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + /* */ + /* Only the glyph loader and debugger should call this function. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Save_Context( TT_ExecContext exec, + TT_Size size ) + { + FT_Int i; + + + /* XXX: Will probably disappear soon with all the code range */ + /* management, which is now rather obsolete. */ + /* */ + size->num_function_defs = exec->numFDefs; + size->num_instruction_defs = exec->numIDefs; + + size->max_func = exec->maxFunc; + size->max_ins = exec->maxIns; + + for ( i = 0; i < TT_MAX_CODE_RANGES; i++ ) + size->codeRangeTable[i] = exec->codeRangeTable[i]; + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Run_Context */ + /* */ + /* */ + /* Executes one or more instructions in the execution context. */ + /* */ + /* */ + /* debug :: A Boolean flag. If set, the function sets some internal */ + /* variables and returns immediately, otherwise TT_RunIns() */ + /* is called. */ + /* */ + /* This is commented out currently. */ + /* */ + /* */ + /* exec :: A handle to the target execution context. */ + /* */ + /* */ + /* TrueType error code. 0 means success. */ + /* */ + /* */ + /* Only the glyph loader and debugger should call this function. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Run_Context( TT_ExecContext exec, + FT_Bool debug ) + { + FT_Error error; + + + if ( ( error = TT_Goto_CodeRange( exec, tt_coderange_glyph, 0 ) ) + != TT_Err_Ok ) + return error; + + exec->zp0 = exec->pts; + exec->zp1 = exec->pts; + exec->zp2 = exec->pts; + + exec->GS.gep0 = 1; + exec->GS.gep1 = 1; + exec->GS.gep2 = 1; + + exec->GS.projVector.x = 0x4000; + exec->GS.projVector.y = 0x0000; + + exec->GS.freeVector = exec->GS.projVector; + exec->GS.dualVector = exec->GS.projVector; + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + exec->GS.both_x_axis = TRUE; +#endif + + exec->GS.round_state = 1; + exec->GS.loop = 1; + + /* some glyphs leave something on the stack. so we clean it */ + /* before a new execution. */ + exec->top = 0; + exec->callTop = 0; + +#if 1 + FT_UNUSED( debug ); + + return exec->face->interpreter( exec ); +#else + if ( !debug ) + return TT_RunIns( exec ); + else + return TT_Err_Ok; +#endif + } + + + /* The default value for `scan_control' is documented as FALSE in the */ + /* TrueType specification. This is confusing since it implies a */ + /* Boolean value. However, this is not the case, thus both the */ + /* default values of our `scan_type' and `scan_control' fields (which */ + /* the documentation's `scan_control' variable is split into) are */ + /* zero. */ + + const TT_GraphicsState tt_default_graphics_state = + { + 0, 0, 0, + { 0x4000, 0 }, + { 0x4000, 0 }, + { 0x4000, 0 }, + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + TRUE, +#endif + + 1, 64, 1, + TRUE, 68, 0, 0, 9, 3, + 0, FALSE, 0, 1, 1, 1 + }; + + + /* documentation is in ttinterp.h */ + + FT_EXPORT_DEF( TT_ExecContext ) + TT_New_Context( TT_Driver driver ) + { + TT_ExecContext exec; + FT_Memory memory; + + + memory = driver->root.root.memory; + exec = driver->context; + + if ( !driver->context ) + { + FT_Error error; + + + /* allocate object */ + if ( FT_NEW( exec ) ) + goto Fail; + + /* initialize it; in case of error this deallocates `exec' too */ + error = Init_Context( exec, memory ); + if ( error ) + goto Fail; + + /* store it into the driver */ + driver->context = exec; + } + + return driver->context; + + Fail: + return NULL; + } + + + /*************************************************************************/ + /* */ + /* Before an opcode is executed, the interpreter verifies that there are */ + /* enough arguments on the stack, with the help of the `Pop_Push_Count' */ + /* table. */ + /* */ + /* For each opcode, the first column gives the number of arguments that */ + /* are popped from the stack; the second one gives the number of those */ + /* that are pushed in result. */ + /* */ + /* Opcodes which have a varying number of parameters in the data stream */ + /* (NPUSHB, NPUSHW) are handled specially; they have a negative value in */ + /* the `opcode_length' table, and the value in `Pop_Push_Count' is set */ + /* to zero. */ + /* */ + /*************************************************************************/ + + +#undef PACK +#define PACK( x, y ) ( ( x << 4 ) | y ) + + + static + const FT_Byte Pop_Push_Count[256] = + { + /* opcodes are gathered in groups of 16 */ + /* please keep the spaces as they are */ + + /* SVTCA y */ PACK( 0, 0 ), + /* SVTCA x */ PACK( 0, 0 ), + /* SPvTCA y */ PACK( 0, 0 ), + /* SPvTCA x */ PACK( 0, 0 ), + /* SFvTCA y */ PACK( 0, 0 ), + /* SFvTCA x */ PACK( 0, 0 ), + /* SPvTL // */ PACK( 2, 0 ), + /* SPvTL + */ PACK( 2, 0 ), + /* SFvTL // */ PACK( 2, 0 ), + /* SFvTL + */ PACK( 2, 0 ), + /* SPvFS */ PACK( 2, 0 ), + /* SFvFS */ PACK( 2, 0 ), + /* GPV */ PACK( 0, 2 ), + /* GFV */ PACK( 0, 2 ), + /* SFvTPv */ PACK( 0, 0 ), + /* ISECT */ PACK( 5, 0 ), + + /* SRP0 */ PACK( 1, 0 ), + /* SRP1 */ PACK( 1, 0 ), + /* SRP2 */ PACK( 1, 0 ), + /* SZP0 */ PACK( 1, 0 ), + /* SZP1 */ PACK( 1, 0 ), + /* SZP2 */ PACK( 1, 0 ), + /* SZPS */ PACK( 1, 0 ), + /* SLOOP */ PACK( 1, 0 ), + /* RTG */ PACK( 0, 0 ), + /* RTHG */ PACK( 0, 0 ), + /* SMD */ PACK( 1, 0 ), + /* ELSE */ PACK( 0, 0 ), + /* JMPR */ PACK( 1, 0 ), + /* SCvTCi */ PACK( 1, 0 ), + /* SSwCi */ PACK( 1, 0 ), + /* SSW */ PACK( 1, 0 ), + + /* DUP */ PACK( 1, 2 ), + /* POP */ PACK( 1, 0 ), + /* CLEAR */ PACK( 0, 0 ), + /* SWAP */ PACK( 2, 2 ), + /* DEPTH */ PACK( 0, 1 ), + /* CINDEX */ PACK( 1, 1 ), + /* MINDEX */ PACK( 1, 0 ), + /* AlignPTS */ PACK( 2, 0 ), + /* INS_$28 */ PACK( 0, 0 ), + /* UTP */ PACK( 1, 0 ), + /* LOOPCALL */ PACK( 2, 0 ), + /* CALL */ PACK( 1, 0 ), + /* FDEF */ PACK( 1, 0 ), + /* ENDF */ PACK( 0, 0 ), + /* MDAP[0] */ PACK( 1, 0 ), + /* MDAP[1] */ PACK( 1, 0 ), + + /* IUP[0] */ PACK( 0, 0 ), + /* IUP[1] */ PACK( 0, 0 ), + /* SHP[0] */ PACK( 0, 0 ), + /* SHP[1] */ PACK( 0, 0 ), + /* SHC[0] */ PACK( 1, 0 ), + /* SHC[1] */ PACK( 1, 0 ), + /* SHZ[0] */ PACK( 1, 0 ), + /* SHZ[1] */ PACK( 1, 0 ), + /* SHPIX */ PACK( 1, 0 ), + /* IP */ PACK( 0, 0 ), + /* MSIRP[0] */ PACK( 2, 0 ), + /* MSIRP[1] */ PACK( 2, 0 ), + /* AlignRP */ PACK( 0, 0 ), + /* RTDG */ PACK( 0, 0 ), + /* MIAP[0] */ PACK( 2, 0 ), + /* MIAP[1] */ PACK( 2, 0 ), + + /* NPushB */ PACK( 0, 0 ), + /* NPushW */ PACK( 0, 0 ), + /* WS */ PACK( 2, 0 ), + /* RS */ PACK( 1, 1 ), + /* WCvtP */ PACK( 2, 0 ), + /* RCvt */ PACK( 1, 1 ), + /* GC[0] */ PACK( 1, 1 ), + /* GC[1] */ PACK( 1, 1 ), + /* SCFS */ PACK( 2, 0 ), + /* MD[0] */ PACK( 2, 1 ), + /* MD[1] */ PACK( 2, 1 ), + /* MPPEM */ PACK( 0, 1 ), + /* MPS */ PACK( 0, 1 ), + /* FlipON */ PACK( 0, 0 ), + /* FlipOFF */ PACK( 0, 0 ), + /* DEBUG */ PACK( 1, 0 ), + + /* LT */ PACK( 2, 1 ), + /* LTEQ */ PACK( 2, 1 ), + /* GT */ PACK( 2, 1 ), + /* GTEQ */ PACK( 2, 1 ), + /* EQ */ PACK( 2, 1 ), + /* NEQ */ PACK( 2, 1 ), + /* ODD */ PACK( 1, 1 ), + /* EVEN */ PACK( 1, 1 ), + /* IF */ PACK( 1, 0 ), + /* EIF */ PACK( 0, 0 ), + /* AND */ PACK( 2, 1 ), + /* OR */ PACK( 2, 1 ), + /* NOT */ PACK( 1, 1 ), + /* DeltaP1 */ PACK( 1, 0 ), + /* SDB */ PACK( 1, 0 ), + /* SDS */ PACK( 1, 0 ), + + /* ADD */ PACK( 2, 1 ), + /* SUB */ PACK( 2, 1 ), + /* DIV */ PACK( 2, 1 ), + /* MUL */ PACK( 2, 1 ), + /* ABS */ PACK( 1, 1 ), + /* NEG */ PACK( 1, 1 ), + /* FLOOR */ PACK( 1, 1 ), + /* CEILING */ PACK( 1, 1 ), + /* ROUND[0] */ PACK( 1, 1 ), + /* ROUND[1] */ PACK( 1, 1 ), + /* ROUND[2] */ PACK( 1, 1 ), + /* ROUND[3] */ PACK( 1, 1 ), + /* NROUND[0] */ PACK( 1, 1 ), + /* NROUND[1] */ PACK( 1, 1 ), + /* NROUND[2] */ PACK( 1, 1 ), + /* NROUND[3] */ PACK( 1, 1 ), + + /* WCvtF */ PACK( 2, 0 ), + /* DeltaP2 */ PACK( 1, 0 ), + /* DeltaP3 */ PACK( 1, 0 ), + /* DeltaCn[0] */ PACK( 1, 0 ), + /* DeltaCn[1] */ PACK( 1, 0 ), + /* DeltaCn[2] */ PACK( 1, 0 ), + /* SROUND */ PACK( 1, 0 ), + /* S45Round */ PACK( 1, 0 ), + /* JROT */ PACK( 2, 0 ), + /* JROF */ PACK( 2, 0 ), + /* ROFF */ PACK( 0, 0 ), + /* INS_$7B */ PACK( 0, 0 ), + /* RUTG */ PACK( 0, 0 ), + /* RDTG */ PACK( 0, 0 ), + /* SANGW */ PACK( 1, 0 ), + /* AA */ PACK( 1, 0 ), + + /* FlipPT */ PACK( 0, 0 ), + /* FlipRgON */ PACK( 2, 0 ), + /* FlipRgOFF */ PACK( 2, 0 ), + /* INS_$83 */ PACK( 0, 0 ), + /* INS_$84 */ PACK( 0, 0 ), + /* ScanCTRL */ PACK( 1, 0 ), + /* SDPVTL[0] */ PACK( 2, 0 ), + /* SDPVTL[1] */ PACK( 2, 0 ), + /* GetINFO */ PACK( 1, 1 ), + /* IDEF */ PACK( 1, 0 ), + /* ROLL */ PACK( 3, 3 ), + /* MAX */ PACK( 2, 1 ), + /* MIN */ PACK( 2, 1 ), + /* ScanTYPE */ PACK( 1, 0 ), + /* InstCTRL */ PACK( 2, 0 ), + /* INS_$8F */ PACK( 0, 0 ), + + /* INS_$90 */ PACK( 0, 0 ), + /* INS_$91 */ PACK( 0, 0 ), + /* INS_$92 */ PACK( 0, 0 ), + /* INS_$93 */ PACK( 0, 0 ), + /* INS_$94 */ PACK( 0, 0 ), + /* INS_$95 */ PACK( 0, 0 ), + /* INS_$96 */ PACK( 0, 0 ), + /* INS_$97 */ PACK( 0, 0 ), + /* INS_$98 */ PACK( 0, 0 ), + /* INS_$99 */ PACK( 0, 0 ), + /* INS_$9A */ PACK( 0, 0 ), + /* INS_$9B */ PACK( 0, 0 ), + /* INS_$9C */ PACK( 0, 0 ), + /* INS_$9D */ PACK( 0, 0 ), + /* INS_$9E */ PACK( 0, 0 ), + /* INS_$9F */ PACK( 0, 0 ), + + /* INS_$A0 */ PACK( 0, 0 ), + /* INS_$A1 */ PACK( 0, 0 ), + /* INS_$A2 */ PACK( 0, 0 ), + /* INS_$A3 */ PACK( 0, 0 ), + /* INS_$A4 */ PACK( 0, 0 ), + /* INS_$A5 */ PACK( 0, 0 ), + /* INS_$A6 */ PACK( 0, 0 ), + /* INS_$A7 */ PACK( 0, 0 ), + /* INS_$A8 */ PACK( 0, 0 ), + /* INS_$A9 */ PACK( 0, 0 ), + /* INS_$AA */ PACK( 0, 0 ), + /* INS_$AB */ PACK( 0, 0 ), + /* INS_$AC */ PACK( 0, 0 ), + /* INS_$AD */ PACK( 0, 0 ), + /* INS_$AE */ PACK( 0, 0 ), + /* INS_$AF */ PACK( 0, 0 ), + + /* PushB[0] */ PACK( 0, 1 ), + /* PushB[1] */ PACK( 0, 2 ), + /* PushB[2] */ PACK( 0, 3 ), + /* PushB[3] */ PACK( 0, 4 ), + /* PushB[4] */ PACK( 0, 5 ), + /* PushB[5] */ PACK( 0, 6 ), + /* PushB[6] */ PACK( 0, 7 ), + /* PushB[7] */ PACK( 0, 8 ), + /* PushW[0] */ PACK( 0, 1 ), + /* PushW[1] */ PACK( 0, 2 ), + /* PushW[2] */ PACK( 0, 3 ), + /* PushW[3] */ PACK( 0, 4 ), + /* PushW[4] */ PACK( 0, 5 ), + /* PushW[5] */ PACK( 0, 6 ), + /* PushW[6] */ PACK( 0, 7 ), + /* PushW[7] */ PACK( 0, 8 ), + + /* MDRP[00] */ PACK( 1, 0 ), + /* MDRP[01] */ PACK( 1, 0 ), + /* MDRP[02] */ PACK( 1, 0 ), + /* MDRP[03] */ PACK( 1, 0 ), + /* MDRP[04] */ PACK( 1, 0 ), + /* MDRP[05] */ PACK( 1, 0 ), + /* MDRP[06] */ PACK( 1, 0 ), + /* MDRP[07] */ PACK( 1, 0 ), + /* MDRP[08] */ PACK( 1, 0 ), + /* MDRP[09] */ PACK( 1, 0 ), + /* MDRP[10] */ PACK( 1, 0 ), + /* MDRP[11] */ PACK( 1, 0 ), + /* MDRP[12] */ PACK( 1, 0 ), + /* MDRP[13] */ PACK( 1, 0 ), + /* MDRP[14] */ PACK( 1, 0 ), + /* MDRP[15] */ PACK( 1, 0 ), + + /* MDRP[16] */ PACK( 1, 0 ), + /* MDRP[17] */ PACK( 1, 0 ), + /* MDRP[18] */ PACK( 1, 0 ), + /* MDRP[19] */ PACK( 1, 0 ), + /* MDRP[20] */ PACK( 1, 0 ), + /* MDRP[21] */ PACK( 1, 0 ), + /* MDRP[22] */ PACK( 1, 0 ), + /* MDRP[23] */ PACK( 1, 0 ), + /* MDRP[24] */ PACK( 1, 0 ), + /* MDRP[25] */ PACK( 1, 0 ), + /* MDRP[26] */ PACK( 1, 0 ), + /* MDRP[27] */ PACK( 1, 0 ), + /* MDRP[28] */ PACK( 1, 0 ), + /* MDRP[29] */ PACK( 1, 0 ), + /* MDRP[30] */ PACK( 1, 0 ), + /* MDRP[31] */ PACK( 1, 0 ), + + /* MIRP[00] */ PACK( 2, 0 ), + /* MIRP[01] */ PACK( 2, 0 ), + /* MIRP[02] */ PACK( 2, 0 ), + /* MIRP[03] */ PACK( 2, 0 ), + /* MIRP[04] */ PACK( 2, 0 ), + /* MIRP[05] */ PACK( 2, 0 ), + /* MIRP[06] */ PACK( 2, 0 ), + /* MIRP[07] */ PACK( 2, 0 ), + /* MIRP[08] */ PACK( 2, 0 ), + /* MIRP[09] */ PACK( 2, 0 ), + /* MIRP[10] */ PACK( 2, 0 ), + /* MIRP[11] */ PACK( 2, 0 ), + /* MIRP[12] */ PACK( 2, 0 ), + /* MIRP[13] */ PACK( 2, 0 ), + /* MIRP[14] */ PACK( 2, 0 ), + /* MIRP[15] */ PACK( 2, 0 ), + + /* MIRP[16] */ PACK( 2, 0 ), + /* MIRP[17] */ PACK( 2, 0 ), + /* MIRP[18] */ PACK( 2, 0 ), + /* MIRP[19] */ PACK( 2, 0 ), + /* MIRP[20] */ PACK( 2, 0 ), + /* MIRP[21] */ PACK( 2, 0 ), + /* MIRP[22] */ PACK( 2, 0 ), + /* MIRP[23] */ PACK( 2, 0 ), + /* MIRP[24] */ PACK( 2, 0 ), + /* MIRP[25] */ PACK( 2, 0 ), + /* MIRP[26] */ PACK( 2, 0 ), + /* MIRP[27] */ PACK( 2, 0 ), + /* MIRP[28] */ PACK( 2, 0 ), + /* MIRP[29] */ PACK( 2, 0 ), + /* MIRP[30] */ PACK( 2, 0 ), + /* MIRP[31] */ PACK( 2, 0 ) + }; + + +#ifdef FT_DEBUG_LEVEL_TRACE + + static + const char* const opcode_name[256] = + { + "SVTCA y", + "SVTCA x", + "SPvTCA y", + "SPvTCA x", + "SFvTCA y", + "SFvTCA x", + "SPvTL ||", + "SPvTL +", + "SFvTL ||", + "SFvTL +", + "SPvFS", + "SFvFS", + "GPV", + "GFV", + "SFvTPv", + "ISECT", + + "SRP0", + "SRP1", + "SRP2", + "SZP0", + "SZP1", + "SZP2", + "SZPS", + "SLOOP", + "RTG", + "RTHG", + "SMD", + "ELSE", + "JMPR", + "SCvTCi", + "SSwCi", + "SSW", + + "DUP", + "POP", + "CLEAR", + "SWAP", + "DEPTH", + "CINDEX", + "MINDEX", + "AlignPTS", + "INS_$28", + "UTP", + "LOOPCALL", + "CALL", + "FDEF", + "ENDF", + "MDAP[0]", + "MDAP[1]", + + "IUP[0]", + "IUP[1]", + "SHP[0]", + "SHP[1]", + "SHC[0]", + "SHC[1]", + "SHZ[0]", + "SHZ[1]", + "SHPIX", + "IP", + "MSIRP[0]", + "MSIRP[1]", + "AlignRP", + "RTDG", + "MIAP[0]", + "MIAP[1]", + + "NPushB", + "NPushW", + "WS", + "RS", + "WCvtP", + "RCvt", + "GC[0]", + "GC[1]", + "SCFS", + "MD[0]", + "MD[1]", + "MPPEM", + "MPS", + "FlipON", + "FlipOFF", + "DEBUG", + + "LT", + "LTEQ", + "GT", + "GTEQ", + "EQ", + "NEQ", + "ODD", + "EVEN", + "IF", + "EIF", + "AND", + "OR", + "NOT", + "DeltaP1", + "SDB", + "SDS", + + "ADD", + "SUB", + "DIV", + "MUL", + "ABS", + "NEG", + "FLOOR", + "CEILING", + "ROUND[0]", + "ROUND[1]", + "ROUND[2]", + "ROUND[3]", + "NROUND[0]", + "NROUND[1]", + "NROUND[2]", + "NROUND[3]", + + "WCvtF", + "DeltaP2", + "DeltaP3", + "DeltaCn[0]", + "DeltaCn[1]", + "DeltaCn[2]", + "SROUND", + "S45Round", + "JROT", + "JROF", + "ROFF", + "INS_$7B", + "RUTG", + "RDTG", + "SANGW", + "AA", + + "FlipPT", + "FlipRgON", + "FlipRgOFF", + "INS_$83", + "INS_$84", + "ScanCTRL", + "SDVPTL[0]", + "SDVPTL[1]", + "GetINFO", + "IDEF", + "ROLL", + "MAX", + "MIN", + "ScanTYPE", + "InstCTRL", + "INS_$8F", + + "INS_$90", + "INS_$91", + "INS_$92", + "INS_$93", + "INS_$94", + "INS_$95", + "INS_$96", + "INS_$97", + "INS_$98", + "INS_$99", + "INS_$9A", + "INS_$9B", + "INS_$9C", + "INS_$9D", + "INS_$9E", + "INS_$9F", + + "INS_$A0", + "INS_$A1", + "INS_$A2", + "INS_$A3", + "INS_$A4", + "INS_$A5", + "INS_$A6", + "INS_$A7", + "INS_$A8", + "INS_$A9", + "INS_$AA", + "INS_$AB", + "INS_$AC", + "INS_$AD", + "INS_$AE", + "INS_$AF", + + "PushB[0]", + "PushB[1]", + "PushB[2]", + "PushB[3]", + "PushB[4]", + "PushB[5]", + "PushB[6]", + "PushB[7]", + "PushW[0]", + "PushW[1]", + "PushW[2]", + "PushW[3]", + "PushW[4]", + "PushW[5]", + "PushW[6]", + "PushW[7]", + + "MDRP[00]", + "MDRP[01]", + "MDRP[02]", + "MDRP[03]", + "MDRP[04]", + "MDRP[05]", + "MDRP[06]", + "MDRP[07]", + "MDRP[08]", + "MDRP[09]", + "MDRP[10]", + "MDRP[11]", + "MDRP[12]", + "MDRP[13]", + "MDRP[14]", + "MDRP[15]", + + "MDRP[16]", + "MDRP[17]", + "MDRP[18]", + "MDRP[19]", + "MDRP[20]", + "MDRP[21]", + "MDRP[22]", + "MDRP[23]", + "MDRP[24]", + "MDRP[25]", + "MDRP[26]", + "MDRP[27]", + "MDRP[28]", + "MDRP[29]", + "MDRP[30]", + "MDRP[31]", + + "MIRP[00]", + "MIRP[01]", + "MIRP[02]", + "MIRP[03]", + "MIRP[04]", + "MIRP[05]", + "MIRP[06]", + "MIRP[07]", + "MIRP[08]", + "MIRP[09]", + "MIRP[10]", + "MIRP[11]", + "MIRP[12]", + "MIRP[13]", + "MIRP[14]", + "MIRP[15]", + + "MIRP[16]", + "MIRP[17]", + "MIRP[18]", + "MIRP[19]", + "MIRP[20]", + "MIRP[21]", + "MIRP[22]", + "MIRP[23]", + "MIRP[24]", + "MIRP[25]", + "MIRP[26]", + "MIRP[27]", + "MIRP[28]", + "MIRP[29]", + "MIRP[30]", + "MIRP[31]" + }; + +#endif /* FT_DEBUG_LEVEL_TRACE */ + + + static + const FT_Char opcode_length[256] = + { + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + -1,-2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 2, 3, 4, 5, 6, 7, 8, 9, 3, 5, 7, 9, 11,13,15,17, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + }; + +#undef PACK + +#if 1 + + static FT_Int32 + TT_MulFix14( FT_Int32 a, + FT_Int b ) + { + FT_Int32 sign; + FT_UInt32 ah, al, mid, lo, hi; + + + sign = a ^ b; + + if ( a < 0 ) + a = -a; + if ( b < 0 ) + b = -b; + + ah = (FT_UInt32)( ( a >> 16 ) & 0xFFFFU ); + al = (FT_UInt32)( a & 0xFFFFU ); + + lo = al * b; + mid = ah * b; + hi = mid >> 16; + mid = ( mid << 16 ) + ( 1 << 13 ); /* rounding */ + lo += mid; + if ( lo < mid ) + hi += 1; + + mid = ( lo >> 14 ) | ( hi << 18 ); + + return sign >= 0 ? (FT_Int32)mid : -(FT_Int32)mid; + } + +#else + + /* compute (a*b)/2^14 with maximal accuracy and rounding */ + static FT_Int32 + TT_MulFix14( FT_Int32 a, + FT_Int b ) + { + FT_Int32 m, s, hi; + FT_UInt32 l, lo; + + + /* compute ax*bx as 64-bit value */ + l = (FT_UInt32)( ( a & 0xFFFFU ) * b ); + m = ( a >> 16 ) * b; + + lo = l + (FT_UInt32)( m << 16 ); + hi = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo < l ); + + /* divide the result by 2^14 with rounding */ + s = hi >> 31; + l = lo + (FT_UInt32)s; + hi += s + ( l < lo ); + lo = l; + + l = lo + 0x2000U; + hi += l < lo; + + return ( hi << 18 ) | ( l >> 14 ); + } +#endif + + + /* compute (ax*bx+ay*by)/2^14 with maximal accuracy and rounding */ + static FT_Int32 + TT_DotFix14( FT_Int32 ax, + FT_Int32 ay, + FT_Int bx, + FT_Int by ) + { + FT_Int32 m, s, hi1, hi2, hi; + FT_UInt32 l, lo1, lo2, lo; + + + /* compute ax*bx as 64-bit value */ + l = (FT_UInt32)( ( ax & 0xFFFFU ) * bx ); + m = ( ax >> 16 ) * bx; + + lo1 = l + (FT_UInt32)( m << 16 ); + hi1 = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo1 < l ); + + /* compute ay*by as 64-bit value */ + l = (FT_UInt32)( ( ay & 0xFFFFU ) * by ); + m = ( ay >> 16 ) * by; + + lo2 = l + (FT_UInt32)( m << 16 ); + hi2 = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo2 < l ); + + /* add them */ + lo = lo1 + lo2; + hi = hi1 + hi2 + ( lo < lo1 ); + + /* divide the result by 2^14 with rounding */ + s = hi >> 31; + l = lo + (FT_UInt32)s; + hi += s + ( l < lo ); + lo = l; + + l = lo + 0x2000U; + hi += ( l < lo ); + + return ( hi << 18 ) | ( l >> 14 ); + } + + + /* return length of given vector */ + +#if 0 + + static FT_Int32 + TT_VecLen( FT_Int32 x, + FT_Int32 y ) + { + FT_Int32 m, hi1, hi2, hi; + FT_UInt32 l, lo1, lo2, lo; + + + /* compute x*x as 64-bit value */ + lo = (FT_UInt32)( x & 0xFFFFU ); + hi = x >> 16; + + l = lo * lo; + m = hi * lo; + hi = hi * hi; + + lo1 = l + (FT_UInt32)( m << 17 ); + hi1 = hi + ( m >> 15 ) + ( lo1 < l ); + + /* compute y*y as 64-bit value */ + lo = (FT_UInt32)( y & 0xFFFFU ); + hi = y >> 16; + + l = lo * lo; + m = hi * lo; + hi = hi * hi; + + lo2 = l + (FT_UInt32)( m << 17 ); + hi2 = hi + ( m >> 15 ) + ( lo2 < l ); + + /* add them to get 'x*x+y*y' as 64-bit value */ + lo = lo1 + lo2; + hi = hi1 + hi2 + ( lo < lo1 ); + + /* compute the square root of this value */ + { + FT_UInt32 root, rem, test_div; + FT_Int count; + + + root = 0; + + { + rem = 0; + count = 32; + do + { + rem = ( rem << 2 ) | ( (FT_UInt32)hi >> 30 ); + hi = ( hi << 2 ) | ( lo >> 30 ); + lo <<= 2; + root <<= 1; + test_div = ( root << 1 ) + 1; + + if ( rem >= test_div ) + { + rem -= test_div; + root += 1; + } + } while ( --count ); + } + + return (FT_Int32)root; + } + } + +#else + + /* this version uses FT_Vector_Length which computes the same value */ + /* much, much faster.. */ + /* */ + static FT_F26Dot6 + TT_VecLen( FT_F26Dot6 X, + FT_F26Dot6 Y ) + { + FT_Vector v; + + + v.x = X; + v.y = Y; + + return FT_Vector_Length( &v ); + } + +#endif + + + /*************************************************************************/ + /* */ + /* */ + /* Current_Ratio */ + /* */ + /* */ + /* Returns the current aspect ratio scaling factor depending on the */ + /* projection vector's state and device resolutions. */ + /* */ + /* */ + /* The aspect ratio in 16.16 format, always <= 1.0 . */ + /* */ + static FT_Long + Current_Ratio( EXEC_OP ) + { + if ( !CUR.tt_metrics.ratio ) + { +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + if ( CUR.face->unpatented_hinting ) + { + if ( CUR.GS.both_x_axis ) + CUR.tt_metrics.ratio = CUR.tt_metrics.x_ratio; + else + CUR.tt_metrics.ratio = CUR.tt_metrics.y_ratio; + } + else +#endif + { + if ( CUR.GS.projVector.y == 0 ) + CUR.tt_metrics.ratio = CUR.tt_metrics.x_ratio; + + else if ( CUR.GS.projVector.x == 0 ) + CUR.tt_metrics.ratio = CUR.tt_metrics.y_ratio; + + else + { + FT_Long x, y; + + + x = TT_MULDIV( CUR.GS.projVector.x, + CUR.tt_metrics.x_ratio, 0x4000 ); + y = TT_MULDIV( CUR.GS.projVector.y, + CUR.tt_metrics.y_ratio, 0x4000 ); + CUR.tt_metrics.ratio = TT_VecLen( x, y ); + } + } + } + return CUR.tt_metrics.ratio; + } + + + static FT_Long + Current_Ppem( EXEC_OP ) + { + return TT_MULFIX( CUR.tt_metrics.ppem, CURRENT_Ratio() ); + } + + + /*************************************************************************/ + /* */ + /* Functions related to the control value table (CVT). */ + /* */ + /*************************************************************************/ + + + FT_CALLBACK_DEF( FT_F26Dot6 ) + Read_CVT( EXEC_OP_ FT_ULong idx ) + { + return CUR.cvt[idx]; + } + + + FT_CALLBACK_DEF( FT_F26Dot6 ) + Read_CVT_Stretched( EXEC_OP_ FT_ULong idx ) + { + return TT_MULFIX( CUR.cvt[idx], CURRENT_Ratio() ); + } + + + FT_CALLBACK_DEF( void ) + Write_CVT( EXEC_OP_ FT_ULong idx, + FT_F26Dot6 value ) + { + CUR.cvt[idx] = value; + } + + + FT_CALLBACK_DEF( void ) + Write_CVT_Stretched( EXEC_OP_ FT_ULong idx, + FT_F26Dot6 value ) + { + CUR.cvt[idx] = FT_DivFix( value, CURRENT_Ratio() ); + } + + + FT_CALLBACK_DEF( void ) + Move_CVT( EXEC_OP_ FT_ULong idx, + FT_F26Dot6 value ) + { + CUR.cvt[idx] += value; + } + + + FT_CALLBACK_DEF( void ) + Move_CVT_Stretched( EXEC_OP_ FT_ULong idx, + FT_F26Dot6 value ) + { + CUR.cvt[idx] += FT_DivFix( value, CURRENT_Ratio() ); + } + + + /*************************************************************************/ + /* */ + /* */ + /* GetShortIns */ + /* */ + /* */ + /* Returns a short integer taken from the instruction stream at */ + /* address IP. */ + /* */ + /* */ + /* Short read at code[IP]. */ + /* */ + /* */ + /* This one could become a macro. */ + /* */ + static FT_Short + GetShortIns( EXEC_OP ) + { + /* Reading a byte stream so there is no endianess (DaveP) */ + CUR.IP += 2; + return (FT_Short)( ( CUR.code[CUR.IP - 2] << 8 ) + + CUR.code[CUR.IP - 1] ); + } + + + /*************************************************************************/ + /* */ + /* */ + /* Ins_Goto_CodeRange */ + /* */ + /* */ + /* Goes to a certain code range in the instruction stream. */ + /* */ + /* */ + /* aRange :: The index of the code range. */ + /* */ + /* aIP :: The new IP address in the code range. */ + /* */ + /* */ + /* SUCCESS or FAILURE. */ + /* */ + static FT_Bool + Ins_Goto_CodeRange( EXEC_OP_ FT_Int aRange, + FT_ULong aIP ) + { + TT_CodeRange* range; + + + if ( aRange < 1 || aRange > 3 ) + { + CUR.error = TT_Err_Bad_Argument; + return FAILURE; + } + + range = &CUR.codeRangeTable[aRange - 1]; + + if ( range->base == NULL ) /* invalid coderange */ + { + CUR.error = TT_Err_Invalid_CodeRange; + return FAILURE; + } + + /* NOTE: Because the last instruction of a program may be a CALL */ + /* which will return to the first byte *after* the code */ + /* range, we test for aIP <= Size, instead of aIP < Size. */ + + if ( aIP > range->size ) + { + CUR.error = TT_Err_Code_Overflow; + return FAILURE; + } + + CUR.code = range->base; + CUR.codeSize = range->size; + CUR.IP = aIP; + CUR.curRange = aRange; + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Direct_Move */ + /* */ + /* */ + /* Moves a point by a given distance along the freedom vector. The */ + /* point will be `touched'. */ + /* */ + /* */ + /* point :: The index of the point to move. */ + /* */ + /* distance :: The distance to apply. */ + /* */ + /* */ + /* zone :: The affected glyph zone. */ + /* */ + static void + Direct_Move( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ) + { + FT_F26Dot6 v; + + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + FT_ASSERT( !CUR.face->unpatented_hinting ); +#endif + + v = CUR.GS.freeVector.x; + + if ( v != 0 ) + { + zone->cur[point].x += TT_MULDIV( distance, + v * 0x10000L, + CUR.F_dot_P ); + + zone->tags[point] |= FT_CURVE_TAG_TOUCH_X; + } + + v = CUR.GS.freeVector.y; + + if ( v != 0 ) + { + zone->cur[point].y += TT_MULDIV( distance, + v * 0x10000L, + CUR.F_dot_P ); + + zone->tags[point] |= FT_CURVE_TAG_TOUCH_Y; + } + } + + + /*************************************************************************/ + /* */ + /* */ + /* Direct_Move_Orig */ + /* */ + /* */ + /* Moves the *original* position of a point by a given distance along */ + /* the freedom vector. Obviously, the point will not be `touched'. */ + /* */ + /* */ + /* point :: The index of the point to move. */ + /* */ + /* distance :: The distance to apply. */ + /* */ + /* */ + /* zone :: The affected glyph zone. */ + /* */ + static void + Direct_Move_Orig( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ) + { + FT_F26Dot6 v; + + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + FT_ASSERT( !CUR.face->unpatented_hinting ); +#endif + + v = CUR.GS.freeVector.x; + + if ( v != 0 ) + zone->org[point].x += TT_MULDIV( distance, + v * 0x10000L, + CUR.F_dot_P ); + + v = CUR.GS.freeVector.y; + + if ( v != 0 ) + zone->org[point].y += TT_MULDIV( distance, + v * 0x10000L, + CUR.F_dot_P ); + } + + + /*************************************************************************/ + /* */ + /* Special versions of Direct_Move() */ + /* */ + /* The following versions are used whenever both vectors are both */ + /* along one of the coordinate unit vectors, i.e. in 90% of the cases. */ + /* */ + /*************************************************************************/ + + + static void + Direct_Move_X( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ) + { + FT_UNUSED_EXEC; + + zone->cur[point].x += distance; + zone->tags[point] |= FT_CURVE_TAG_TOUCH_X; + } + + + static void + Direct_Move_Y( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ) + { + FT_UNUSED_EXEC; + + zone->cur[point].y += distance; + zone->tags[point] |= FT_CURVE_TAG_TOUCH_Y; + } + + + /*************************************************************************/ + /* */ + /* Special versions of Direct_Move_Orig() */ + /* */ + /* The following versions are used whenever both vectors are both */ + /* along one of the coordinate unit vectors, i.e. in 90% of the cases. */ + /* */ + /*************************************************************************/ + + + static void + Direct_Move_Orig_X( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ) + { + FT_UNUSED_EXEC; + + zone->org[point].x += distance; + } + + + static void + Direct_Move_Orig_Y( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ) + { + FT_UNUSED_EXEC; + + zone->org[point].y += distance; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Round_None */ + /* */ + /* */ + /* Does not round, but adds engine compensation. */ + /* */ + /* */ + /* distance :: The distance (not) to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* */ + /* The compensated distance. */ + /* */ + /* */ + /* The TrueType specification says very few about the relationship */ + /* between rounding and engine compensation. However, it seems from */ + /* the description of super round that we should add the compensation */ + /* before rounding. */ + /* */ + static FT_F26Dot6 + Round_None( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + FT_UNUSED_EXEC; + + + if ( distance >= 0 ) + { + val = distance + compensation; + if ( distance && val < 0 ) + val = 0; + } + else + { + val = distance - compensation; + if ( val > 0 ) + val = 0; + } + return val; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Round_To_Grid */ + /* */ + /* */ + /* Rounds value to grid after adding engine compensation. */ + /* */ + /* */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* */ + /* Rounded distance. */ + /* */ + static FT_F26Dot6 + Round_To_Grid( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + FT_UNUSED_EXEC; + + + if ( distance >= 0 ) + { + val = distance + compensation + 32; + if ( distance && val > 0 ) + val &= ~63; + else + val = 0; + } + else + { + val = -FT_PIX_ROUND( compensation - distance ); + if ( val > 0 ) + val = 0; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Round_To_Half_Grid */ + /* */ + /* */ + /* Rounds value to half grid after adding engine compensation. */ + /* */ + /* */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* */ + /* Rounded distance. */ + /* */ + static FT_F26Dot6 + Round_To_Half_Grid( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + FT_UNUSED_EXEC; + + + if ( distance >= 0 ) + { + val = FT_PIX_FLOOR( distance + compensation ) + 32; + if ( distance && val < 0 ) + val = 0; + } + else + { + val = -( FT_PIX_FLOOR( compensation - distance ) + 32 ); + if ( val > 0 ) + val = 0; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Round_Down_To_Grid */ + /* */ + /* */ + /* Rounds value down to grid after adding engine compensation. */ + /* */ + /* */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* */ + /* Rounded distance. */ + /* */ + static FT_F26Dot6 + Round_Down_To_Grid( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + FT_UNUSED_EXEC; + + + if ( distance >= 0 ) + { + val = distance + compensation; + if ( distance && val > 0 ) + val &= ~63; + else + val = 0; + } + else + { + val = -( ( compensation - distance ) & -64 ); + if ( val > 0 ) + val = 0; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Round_Up_To_Grid */ + /* */ + /* */ + /* Rounds value up to grid after adding engine compensation. */ + /* */ + /* */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* */ + /* Rounded distance. */ + /* */ + static FT_F26Dot6 + Round_Up_To_Grid( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + FT_UNUSED_EXEC; + + + if ( distance >= 0 ) + { + val = distance + compensation + 63; + if ( distance && val > 0 ) + val &= ~63; + else + val = 0; + } + else + { + val = - FT_PIX_CEIL( compensation - distance ); + if ( val > 0 ) + val = 0; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Round_To_Double_Grid */ + /* */ + /* */ + /* Rounds value to double grid after adding engine compensation. */ + /* */ + /* */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* */ + /* Rounded distance. */ + /* */ + static FT_F26Dot6 + Round_To_Double_Grid( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + FT_UNUSED_EXEC; + + + if ( distance >= 0 ) + { + val = distance + compensation + 16; + if ( distance && val > 0 ) + val &= ~31; + else + val = 0; + } + else + { + val = -FT_PAD_ROUND( compensation - distance, 32 ); + if ( val > 0 ) + val = 0; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Round_Super */ + /* */ + /* */ + /* Super-rounds value to grid after adding engine compensation. */ + /* */ + /* */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* */ + /* Rounded distance. */ + /* */ + /* */ + /* The TrueType specification says very few about the relationship */ + /* between rounding and engine compensation. However, it seems from */ + /* the description of super round that we should add the compensation */ + /* before rounding. */ + /* */ + static FT_F26Dot6 + Round_Super( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + + if ( distance >= 0 ) + { + val = ( distance - CUR.phase + CUR.threshold + compensation ) & + -CUR.period; + if ( distance && val < 0 ) + val = 0; + val += CUR.phase; + } + else + { + val = -( ( CUR.threshold - CUR.phase - distance + compensation ) & + -CUR.period ); + if ( val > 0 ) + val = 0; + val -= CUR.phase; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Round_Super_45 */ + /* */ + /* */ + /* Super-rounds value to grid after adding engine compensation. */ + /* */ + /* */ + /* distance :: The distance to round. */ + /* */ + /* compensation :: The engine compensation. */ + /* */ + /* */ + /* Rounded distance. */ + /* */ + /* */ + /* There is a separate function for Round_Super_45() as we may need */ + /* greater precision. */ + /* */ + static FT_F26Dot6 + Round_Super_45( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ) + { + FT_F26Dot6 val; + + + if ( distance >= 0 ) + { + val = ( ( distance - CUR.phase + CUR.threshold + compensation ) / + CUR.period ) * CUR.period; + if ( distance && val < 0 ) + val = 0; + val += CUR.phase; + } + else + { + val = -( ( ( CUR.threshold - CUR.phase - distance + compensation ) / + CUR.period ) * CUR.period ); + if ( val > 0 ) + val = 0; + val -= CUR.phase; + } + + return val; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Compute_Round */ + /* */ + /* */ + /* Sets the rounding mode. */ + /* */ + /* */ + /* round_mode :: The rounding mode to be used. */ + /* */ + static void + Compute_Round( EXEC_OP_ FT_Byte round_mode ) + { + switch ( round_mode ) + { + case TT_Round_Off: + CUR.func_round = (TT_Round_Func)Round_None; + break; + + case TT_Round_To_Grid: + CUR.func_round = (TT_Round_Func)Round_To_Grid; + break; + + case TT_Round_Up_To_Grid: + CUR.func_round = (TT_Round_Func)Round_Up_To_Grid; + break; + + case TT_Round_Down_To_Grid: + CUR.func_round = (TT_Round_Func)Round_Down_To_Grid; + break; + + case TT_Round_To_Half_Grid: + CUR.func_round = (TT_Round_Func)Round_To_Half_Grid; + break; + + case TT_Round_To_Double_Grid: + CUR.func_round = (TT_Round_Func)Round_To_Double_Grid; + break; + + case TT_Round_Super: + CUR.func_round = (TT_Round_Func)Round_Super; + break; + + case TT_Round_Super_45: + CUR.func_round = (TT_Round_Func)Round_Super_45; + break; + } + } + + + /*************************************************************************/ + /* */ + /* */ + /* SetSuperRound */ + /* */ + /* */ + /* Sets Super Round parameters. */ + /* */ + /* */ + /* GridPeriod :: Grid period */ + /* selector :: SROUND opcode */ + /* */ + static void + SetSuperRound( EXEC_OP_ FT_F26Dot6 GridPeriod, + FT_Long selector ) + { + switch ( (FT_Int)( selector & 0xC0 ) ) + { + case 0: + CUR.period = GridPeriod / 2; + break; + + case 0x40: + CUR.period = GridPeriod; + break; + + case 0x80: + CUR.period = GridPeriod * 2; + break; + + /* This opcode is reserved, but... */ + + case 0xC0: + CUR.period = GridPeriod; + break; + } + + switch ( (FT_Int)( selector & 0x30 ) ) + { + case 0: + CUR.phase = 0; + break; + + case 0x10: + CUR.phase = CUR.period / 4; + break; + + case 0x20: + CUR.phase = CUR.period / 2; + break; + + case 0x30: + CUR.phase = CUR.period * 3 / 4; + break; + } + + if ( ( selector & 0x0F ) == 0 ) + CUR.threshold = CUR.period - 1; + else + CUR.threshold = ( (FT_Int)( selector & 0x0F ) - 4 ) * CUR.period / 8; + + CUR.period /= 256; + CUR.phase /= 256; + CUR.threshold /= 256; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Project */ + /* */ + /* */ + /* Computes the projection of vector given by (v2-v1) along the */ + /* current projection vector. */ + /* */ + /* */ + /* v1 :: First input vector. */ + /* v2 :: Second input vector. */ + /* */ + /* */ + /* The distance in F26dot6 format. */ + /* */ + static FT_F26Dot6 + Project( EXEC_OP_ FT_Pos dx, + FT_Pos dy ) + { +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + FT_ASSERT( !CUR.face->unpatented_hinting ); +#endif + + return TT_DotFix14( (FT_UInt32)dx, (FT_UInt32)dy, + CUR.GS.projVector.x, + CUR.GS.projVector.y ); + } + + + /*************************************************************************/ + /* */ + /* */ + /* Dual_Project */ + /* */ + /* */ + /* Computes the projection of the vector given by (v2-v1) along the */ + /* current dual vector. */ + /* */ + /* */ + /* v1 :: First input vector. */ + /* v2 :: Second input vector. */ + /* */ + /* */ + /* The distance in F26dot6 format. */ + /* */ + static FT_F26Dot6 + Dual_Project( EXEC_OP_ FT_Pos dx, + FT_Pos dy ) + { + return TT_DotFix14( (FT_UInt32)dx, (FT_UInt32)dy, + CUR.GS.dualVector.x, + CUR.GS.dualVector.y ); + } + + + /*************************************************************************/ + /* */ + /* */ + /* Project_x */ + /* */ + /* */ + /* Computes the projection of the vector given by (v2-v1) along the */ + /* horizontal axis. */ + /* */ + /* */ + /* v1 :: First input vector. */ + /* v2 :: Second input vector. */ + /* */ + /* */ + /* The distance in F26dot6 format. */ + /* */ + static FT_F26Dot6 + Project_x( EXEC_OP_ FT_Pos dx, + FT_Pos dy ) + { + FT_UNUSED_EXEC; + FT_UNUSED( dy ); + + return dx; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Project_y */ + /* */ + /* */ + /* Computes the projection of the vector given by (v2-v1) along the */ + /* vertical axis. */ + /* */ + /* */ + /* v1 :: First input vector. */ + /* v2 :: Second input vector. */ + /* */ + /* */ + /* The distance in F26dot6 format. */ + /* */ + static FT_F26Dot6 + Project_y( EXEC_OP_ FT_Pos dx, + FT_Pos dy ) + { + FT_UNUSED_EXEC; + FT_UNUSED( dx ); + + return dy; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Compute_Funcs */ + /* */ + /* */ + /* Computes the projection and movement function pointers according */ + /* to the current graphics state. */ + /* */ + static void + Compute_Funcs( EXEC_OP ) + { +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + if ( CUR.face->unpatented_hinting ) + { + /* If both vectors point rightwards along the x axis, set */ + /* `both-x-axis' true, otherwise set it false. The x values only */ + /* need be tested because the vector has been normalised to a unit */ + /* vector of length 0x4000 = unity. */ + CUR.GS.both_x_axis = (FT_Bool)( CUR.GS.projVector.x == 0x4000 && + CUR.GS.freeVector.x == 0x4000 ); + + /* Throw away projection and freedom vector information */ + /* because the patents don't allow them to be stored. */ + /* The relevant US Patents are 5155805 and 5325479. */ + CUR.GS.projVector.x = 0; + CUR.GS.projVector.y = 0; + CUR.GS.freeVector.x = 0; + CUR.GS.freeVector.y = 0; + + if ( CUR.GS.both_x_axis ) + { + CUR.func_project = Project_x; + CUR.func_move = Direct_Move_X; + CUR.func_move_orig = Direct_Move_Orig_X; + } + else + { + CUR.func_project = Project_y; + CUR.func_move = Direct_Move_Y; + CUR.func_move_orig = Direct_Move_Orig_Y; + } + + if ( CUR.GS.dualVector.x == 0x4000 ) + CUR.func_dualproj = Project_x; + else + { + if ( CUR.GS.dualVector.y == 0x4000 ) + CUR.func_dualproj = Project_y; + else + CUR.func_dualproj = Dual_Project; + } + + /* Force recalculation of cached aspect ratio */ + CUR.tt_metrics.ratio = 0; + + return; + } +#endif /* TT_CONFIG_OPTION_UNPATENTED_HINTING */ + + if ( CUR.GS.freeVector.x == 0x4000 ) + CUR.F_dot_P = CUR.GS.projVector.x * 0x10000L; + else + { + if ( CUR.GS.freeVector.y == 0x4000 ) + CUR.F_dot_P = CUR.GS.projVector.y * 0x10000L; + else + CUR.F_dot_P = (FT_Long)CUR.GS.projVector.x * CUR.GS.freeVector.x * 4 + + (FT_Long)CUR.GS.projVector.y * CUR.GS.freeVector.y * 4; + } + + if ( CUR.GS.projVector.x == 0x4000 ) + CUR.func_project = (TT_Project_Func)Project_x; + else + { + if ( CUR.GS.projVector.y == 0x4000 ) + CUR.func_project = (TT_Project_Func)Project_y; + else + CUR.func_project = (TT_Project_Func)Project; + } + + if ( CUR.GS.dualVector.x == 0x4000 ) + CUR.func_dualproj = (TT_Project_Func)Project_x; + else + { + if ( CUR.GS.dualVector.y == 0x4000 ) + CUR.func_dualproj = (TT_Project_Func)Project_y; + else + CUR.func_dualproj = (TT_Project_Func)Dual_Project; + } + + CUR.func_move = (TT_Move_Func)Direct_Move; + CUR.func_move_orig = (TT_Move_Func)Direct_Move_Orig; + + if ( CUR.F_dot_P == 0x40000000L ) + { + if ( CUR.GS.freeVector.x == 0x4000 ) + { + CUR.func_move = (TT_Move_Func)Direct_Move_X; + CUR.func_move_orig = (TT_Move_Func)Direct_Move_Orig_X; + } + else + { + if ( CUR.GS.freeVector.y == 0x4000 ) + { + CUR.func_move = (TT_Move_Func)Direct_Move_Y; + CUR.func_move_orig = (TT_Move_Func)Direct_Move_Orig_Y; + } + } + } + + /* at small sizes, F_dot_P can become too small, resulting */ + /* in overflows and `spikes' in a number of glyphs like `w'. */ + + if ( FT_ABS( CUR.F_dot_P ) < 0x4000000L ) + CUR.F_dot_P = 0x40000000L; + + /* Disable cached aspect ratio */ + CUR.tt_metrics.ratio = 0; + } + + + /*************************************************************************/ + /* */ + /* */ + /* Normalize */ + /* */ + /* */ + /* Norms a vector. */ + /* */ + /* */ + /* Vx :: The horizontal input vector coordinate. */ + /* Vy :: The vertical input vector coordinate. */ + /* */ + /* */ + /* R :: The normed unit vector. */ + /* */ + /* */ + /* Returns FAILURE if a vector parameter is zero. */ + /* */ + /* */ + /* In case Vx and Vy are both zero, Normalize() returns SUCCESS, and */ + /* R is undefined. */ + /* */ + + + static FT_Bool + Normalize( EXEC_OP_ FT_F26Dot6 Vx, + FT_F26Dot6 Vy, + FT_UnitVector* R ) + { + FT_F26Dot6 W; + FT_Bool S1, S2; + + FT_UNUSED_EXEC; + + + if ( FT_ABS( Vx ) < 0x10000L && FT_ABS( Vy ) < 0x10000L ) + { + Vx *= 0x100; + Vy *= 0x100; + + W = TT_VecLen( Vx, Vy ); + + if ( W == 0 ) + { + /* XXX: UNDOCUMENTED! It seems that it is possible to try */ + /* to normalize the vector (0,0). Return immediately. */ + return SUCCESS; + } + + R->x = (FT_F2Dot14)FT_MulDiv( Vx, 0x4000L, W ); + R->y = (FT_F2Dot14)FT_MulDiv( Vy, 0x4000L, W ); + + return SUCCESS; + } + + W = TT_VecLen( Vx, Vy ); + + Vx = FT_MulDiv( Vx, 0x4000L, W ); + Vy = FT_MulDiv( Vy, 0x4000L, W ); + + W = Vx * Vx + Vy * Vy; + + /* Now, we want that Sqrt( W ) = 0x4000 */ + /* Or 0x10000000 <= W < 0x10004000 */ + + if ( Vx < 0 ) + { + Vx = -Vx; + S1 = TRUE; + } + else + S1 = FALSE; + + if ( Vy < 0 ) + { + Vy = -Vy; + S2 = TRUE; + } + else + S2 = FALSE; + + while ( W < 0x10000000L ) + { + /* We need to increase W by a minimal amount */ + if ( Vx < Vy ) + Vx++; + else + Vy++; + + W = Vx * Vx + Vy * Vy; + } + + while ( W >= 0x10004000L ) + { + /* We need to decrease W by a minimal amount */ + if ( Vx < Vy ) + Vx--; + else + Vy--; + + W = Vx * Vx + Vy * Vy; + } + + /* Note that in various cases, we can only */ + /* compute a Sqrt(W) of 0x3FFF, eg. Vx = Vy */ + + if ( S1 ) + Vx = -Vx; + + if ( S2 ) + Vy = -Vy; + + R->x = (FT_F2Dot14)Vx; /* Type conversion */ + R->y = (FT_F2Dot14)Vy; /* Type conversion */ + + return SUCCESS; + } + + + /*************************************************************************/ + /* */ + /* Here we start with the implementation of the various opcodes. */ + /* */ + /*************************************************************************/ + + + static FT_Bool + Ins_SxVTL( EXEC_OP_ FT_UShort aIdx1, + FT_UShort aIdx2, + FT_Int aOpc, + FT_UnitVector* Vec ) + { + FT_Long A, B, C; + FT_Vector* p1; + FT_Vector* p2; + + + if ( BOUNDS( aIdx1, CUR.zp2.n_points ) || + BOUNDS( aIdx2, CUR.zp1.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return FAILURE; + } + + p1 = CUR.zp1.cur + aIdx2; + p2 = CUR.zp2.cur + aIdx1; + + A = p1->x - p2->x; + B = p1->y - p2->y; + + /* If p1 == p2, SPVTL and SFVTL behave the same as */ + /* SPVTCA[X] and SFVTCA[X], respectively. */ + /* */ + /* Confirmed by Greg Hitchcock. */ + + if ( A == 0 && B == 0 ) + { + A = 0x4000; + aOpc = 0; + } + + if ( ( aOpc & 1 ) != 0 ) + { + C = B; /* counter clockwise rotation */ + B = A; + A = -C; + } + + NORMalize( A, B, Vec ); + + return SUCCESS; + } + + + /* When not using the big switch statements, the interpreter uses a */ + /* call table defined later below in this source. Each opcode must */ + /* thus have a corresponding function, even trivial ones. */ + /* */ + /* They are all defined there. */ + +#define DO_SVTCA \ + { \ + FT_Short A, B; \ + \ + \ + A = (FT_Short)( CUR.opcode & 1 ) << 14; \ + B = A ^ (FT_Short)0x4000; \ + \ + CUR.GS.freeVector.x = A; \ + CUR.GS.projVector.x = A; \ + CUR.GS.dualVector.x = A; \ + \ + CUR.GS.freeVector.y = B; \ + CUR.GS.projVector.y = B; \ + CUR.GS.dualVector.y = B; \ + \ + COMPUTE_Funcs(); \ + } + + +#define DO_SPVTCA \ + { \ + FT_Short A, B; \ + \ + \ + A = (FT_Short)( CUR.opcode & 1 ) << 14; \ + B = A ^ (FT_Short)0x4000; \ + \ + CUR.GS.projVector.x = A; \ + CUR.GS.dualVector.x = A; \ + \ + CUR.GS.projVector.y = B; \ + CUR.GS.dualVector.y = B; \ + \ + GUESS_VECTOR( freeVector ); \ + \ + COMPUTE_Funcs(); \ + } + + +#define DO_SFVTCA \ + { \ + FT_Short A, B; \ + \ + \ + A = (FT_Short)( CUR.opcode & 1 ) << 14; \ + B = A ^ (FT_Short)0x4000; \ + \ + CUR.GS.freeVector.x = A; \ + CUR.GS.freeVector.y = B; \ + \ + GUESS_VECTOR( projVector ); \ + \ + COMPUTE_Funcs(); \ + } + + +#define DO_SPVTL \ + if ( INS_SxVTL( (FT_UShort)args[1], \ + (FT_UShort)args[0], \ + CUR.opcode, \ + &CUR.GS.projVector ) == SUCCESS ) \ + { \ + CUR.GS.dualVector = CUR.GS.projVector; \ + GUESS_VECTOR( freeVector ); \ + COMPUTE_Funcs(); \ + } + + +#define DO_SFVTL \ + if ( INS_SxVTL( (FT_UShort)args[1], \ + (FT_UShort)args[0], \ + CUR.opcode, \ + &CUR.GS.freeVector ) == SUCCESS ) \ + { \ + GUESS_VECTOR( projVector ); \ + COMPUTE_Funcs(); \ + } + + +#define DO_SFVTPV \ + GUESS_VECTOR( projVector ); \ + CUR.GS.freeVector = CUR.GS.projVector; \ + COMPUTE_Funcs(); + + +#define DO_SPVFS \ + { \ + FT_Short S; \ + FT_Long X, Y; \ + \ + \ + /* Only use low 16bits, then sign extend */ \ + S = (FT_Short)args[1]; \ + Y = (FT_Long)S; \ + S = (FT_Short)args[0]; \ + X = (FT_Long)S; \ + \ + NORMalize( X, Y, &CUR.GS.projVector ); \ + \ + CUR.GS.dualVector = CUR.GS.projVector; \ + GUESS_VECTOR( freeVector ); \ + COMPUTE_Funcs(); \ + } + + +#define DO_SFVFS \ + { \ + FT_Short S; \ + FT_Long X, Y; \ + \ + \ + /* Only use low 16bits, then sign extend */ \ + S = (FT_Short)args[1]; \ + Y = (FT_Long)S; \ + S = (FT_Short)args[0]; \ + X = S; \ + \ + NORMalize( X, Y, &CUR.GS.freeVector ); \ + GUESS_VECTOR( projVector ); \ + COMPUTE_Funcs(); \ + } + + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING +#define DO_GPV \ + if ( CUR.face->unpatented_hinting ) \ + { \ + args[0] = CUR.GS.both_x_axis ? 0x4000 : 0; \ + args[1] = CUR.GS.both_x_axis ? 0 : 0x4000; \ + } \ + else \ + { \ + args[0] = CUR.GS.projVector.x; \ + args[1] = CUR.GS.projVector.y; \ + } +#else +#define DO_GPV \ + args[0] = CUR.GS.projVector.x; \ + args[1] = CUR.GS.projVector.y; +#endif + + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING +#define DO_GFV \ + if ( CUR.face->unpatented_hinting ) \ + { \ + args[0] = CUR.GS.both_x_axis ? 0x4000 : 0; \ + args[1] = CUR.GS.both_x_axis ? 0 : 0x4000; \ + } \ + else \ + { \ + args[0] = CUR.GS.freeVector.x; \ + args[1] = CUR.GS.freeVector.y; \ + } +#else +#define DO_GFV \ + args[0] = CUR.GS.freeVector.x; \ + args[1] = CUR.GS.freeVector.y; +#endif + + +#define DO_SRP0 \ + CUR.GS.rp0 = (FT_UShort)args[0]; + + +#define DO_SRP1 \ + CUR.GS.rp1 = (FT_UShort)args[0]; + + +#define DO_SRP2 \ + CUR.GS.rp2 = (FT_UShort)args[0]; + + +#define DO_RTHG \ + CUR.GS.round_state = TT_Round_To_Half_Grid; \ + CUR.func_round = (TT_Round_Func)Round_To_Half_Grid; + + +#define DO_RTG \ + CUR.GS.round_state = TT_Round_To_Grid; \ + CUR.func_round = (TT_Round_Func)Round_To_Grid; + + +#define DO_RTDG \ + CUR.GS.round_state = TT_Round_To_Double_Grid; \ + CUR.func_round = (TT_Round_Func)Round_To_Double_Grid; + + +#define DO_RUTG \ + CUR.GS.round_state = TT_Round_Up_To_Grid; \ + CUR.func_round = (TT_Round_Func)Round_Up_To_Grid; + + +#define DO_RDTG \ + CUR.GS.round_state = TT_Round_Down_To_Grid; \ + CUR.func_round = (TT_Round_Func)Round_Down_To_Grid; + + +#define DO_ROFF \ + CUR.GS.round_state = TT_Round_Off; \ + CUR.func_round = (TT_Round_Func)Round_None; + + +#define DO_SROUND \ + SET_SuperRound( 0x4000, args[0] ); \ + CUR.GS.round_state = TT_Round_Super; \ + CUR.func_round = (TT_Round_Func)Round_Super; + + +#define DO_S45ROUND \ + SET_SuperRound( 0x2D41, args[0] ); \ + CUR.GS.round_state = TT_Round_Super_45; \ + CUR.func_round = (TT_Round_Func)Round_Super_45; + + +#define DO_SLOOP \ + if ( args[0] < 0 ) \ + CUR.error = TT_Err_Bad_Argument; \ + else \ + CUR.GS.loop = args[0]; + + +#define DO_SMD \ + CUR.GS.minimum_distance = args[0]; + + +#define DO_SCVTCI \ + CUR.GS.control_value_cutin = (FT_F26Dot6)args[0]; + + +#define DO_SSWCI \ + CUR.GS.single_width_cutin = (FT_F26Dot6)args[0]; + + + /* XXX: UNDOCUMENTED! or bug in the Windows engine? */ + /* */ + /* It seems that the value that is read here is */ + /* expressed in 16.16 format rather than in font */ + /* units. */ + /* */ +#define DO_SSW \ + CUR.GS.single_width_value = (FT_F26Dot6)( args[0] >> 10 ); + + +#define DO_FLIPON \ + CUR.GS.auto_flip = TRUE; + + +#define DO_FLIPOFF \ + CUR.GS.auto_flip = FALSE; + + +#define DO_SDB \ + CUR.GS.delta_base = (FT_Short)args[0]; + + +#define DO_SDS \ + CUR.GS.delta_shift = (FT_Short)args[0]; + + +#define DO_MD /* nothing */ + + +#define DO_MPPEM \ + args[0] = CURRENT_Ppem(); + + + /* Note: The pointSize should be irrelevant in a given font program; */ + /* we thus decide to return only the ppem. */ +#if 0 + +#define DO_MPS \ + args[0] = CUR.metrics.pointSize; + +#else + +#define DO_MPS \ + args[0] = CURRENT_Ppem(); + +#endif /* 0 */ + + +#define DO_DUP \ + args[1] = args[0]; + + +#define DO_CLEAR \ + CUR.new_top = 0; + + +#define DO_SWAP \ + { \ + FT_Long L; \ + \ + \ + L = args[0]; \ + args[0] = args[1]; \ + args[1] = L; \ + } + + +#define DO_DEPTH \ + args[0] = CUR.top; + + +#define DO_CINDEX \ + { \ + FT_Long L; \ + \ + \ + L = args[0]; \ + \ + if ( L <= 0 || L > CUR.args ) \ + { \ + if ( CUR.pedantic_hinting ) \ + CUR.error = TT_Err_Invalid_Reference; \ + args[0] = 0; \ + } \ + else \ + args[0] = CUR.stack[CUR.args - L]; \ + } + + +#define DO_JROT \ + if ( args[1] != 0 ) \ + { \ + if ( args[0] == 0 && CUR.args == 0 ) \ + CUR.error = TT_Err_Bad_Argument; \ + CUR.IP += args[0]; \ + if ( CUR.IP < 0 || \ + ( CUR.callTop > 0 && \ + CUR.IP > CUR.callStack[CUR.callTop - 1].Cur_End ) ) \ + CUR.error = TT_Err_Bad_Argument; \ + CUR.step_ins = FALSE; \ + } + + +#define DO_JMPR \ + if ( args[0] == 0 && CUR.args == 0 ) \ + CUR.error = TT_Err_Bad_Argument; \ + CUR.IP += args[0]; \ + if ( CUR.IP < 0 || \ + ( CUR.callTop > 0 && \ + CUR.IP > CUR.callStack[CUR.callTop - 1].Cur_End ) ) \ + CUR.error = TT_Err_Bad_Argument; \ + CUR.step_ins = FALSE; + + +#define DO_JROF \ + if ( args[1] == 0 ) \ + { \ + if ( args[0] == 0 && CUR.args == 0 ) \ + CUR.error = TT_Err_Bad_Argument; \ + CUR.IP += args[0]; \ + if ( CUR.IP < 0 || \ + ( CUR.callTop > 0 && \ + CUR.IP > CUR.callStack[CUR.callTop - 1].Cur_End ) ) \ + CUR.error = TT_Err_Bad_Argument; \ + CUR.step_ins = FALSE; \ + } + + +#define DO_LT \ + args[0] = ( args[0] < args[1] ); + + +#define DO_LTEQ \ + args[0] = ( args[0] <= args[1] ); + + +#define DO_GT \ + args[0] = ( args[0] > args[1] ); + + +#define DO_GTEQ \ + args[0] = ( args[0] >= args[1] ); + + +#define DO_EQ \ + args[0] = ( args[0] == args[1] ); + + +#define DO_NEQ \ + args[0] = ( args[0] != args[1] ); + + +#define DO_ODD \ + args[0] = ( ( CUR_Func_round( args[0], 0 ) & 127 ) == 64 ); + + +#define DO_EVEN \ + args[0] = ( ( CUR_Func_round( args[0], 0 ) & 127 ) == 0 ); + + +#define DO_AND \ + args[0] = ( args[0] && args[1] ); + + +#define DO_OR \ + args[0] = ( args[0] || args[1] ); + + +#define DO_NOT \ + args[0] = !args[0]; + + +#define DO_ADD \ + args[0] += args[1]; + + +#define DO_SUB \ + args[0] -= args[1]; + + +#define DO_DIV \ + if ( args[1] == 0 ) \ + CUR.error = TT_Err_Divide_By_Zero; \ + else \ + args[0] = TT_MULDIV_NO_ROUND( args[0], 64L, args[1] ); + + +#define DO_MUL \ + args[0] = TT_MULDIV( args[0], args[1], 64L ); + + +#define DO_ABS \ + args[0] = FT_ABS( args[0] ); + + +#define DO_NEG \ + args[0] = -args[0]; + + +#define DO_FLOOR \ + args[0] = FT_PIX_FLOOR( args[0] ); + + +#define DO_CEILING \ + args[0] = FT_PIX_CEIL( args[0] ); + + +#define DO_RS \ + { \ + FT_ULong I = (FT_ULong)args[0]; \ + \ + \ + if ( BOUNDSL( I, CUR.storeSize ) ) \ + { \ + if ( CUR.pedantic_hinting ) \ + { \ + ARRAY_BOUND_ERROR; \ + } \ + else \ + args[0] = 0; \ + } \ + else \ + args[0] = CUR.storage[I]; \ + } + + +#define DO_WS \ + { \ + FT_ULong I = (FT_ULong)args[0]; \ + \ + \ + if ( BOUNDSL( I, CUR.storeSize ) ) \ + { \ + if ( CUR.pedantic_hinting ) \ + { \ + ARRAY_BOUND_ERROR; \ + } \ + } \ + else \ + CUR.storage[I] = args[1]; \ + } + + +#define DO_RCVT \ + { \ + FT_ULong I = (FT_ULong)args[0]; \ + \ + \ + if ( BOUNDSL( I, CUR.cvtSize ) ) \ + { \ + if ( CUR.pedantic_hinting ) \ + { \ + ARRAY_BOUND_ERROR; \ + } \ + else \ + args[0] = 0; \ + } \ + else \ + args[0] = CUR_Func_read_cvt( I ); \ + } + + +#define DO_WCVTP \ + { \ + FT_ULong I = (FT_ULong)args[0]; \ + \ + \ + if ( BOUNDSL( I, CUR.cvtSize ) ) \ + { \ + if ( CUR.pedantic_hinting ) \ + { \ + ARRAY_BOUND_ERROR; \ + } \ + } \ + else \ + CUR_Func_write_cvt( I, args[1] ); \ + } + + +#define DO_WCVTF \ + { \ + FT_ULong I = (FT_ULong)args[0]; \ + \ + \ + if ( BOUNDSL( I, CUR.cvtSize ) ) \ + { \ + if ( CUR.pedantic_hinting ) \ + { \ + ARRAY_BOUND_ERROR; \ + } \ + } \ + else \ + CUR.cvt[I] = TT_MULFIX( args[1], CUR.tt_metrics.scale ); \ + } + + +#define DO_DEBUG \ + CUR.error = TT_Err_Debug_OpCode; + + +#define DO_ROUND \ + args[0] = CUR_Func_round( \ + args[0], \ + CUR.tt_metrics.compensations[CUR.opcode - 0x68] ); + + +#define DO_NROUND \ + args[0] = ROUND_None( args[0], \ + CUR.tt_metrics.compensations[CUR.opcode - 0x6C] ); + + +#define DO_MAX \ + if ( args[1] > args[0] ) \ + args[0] = args[1]; + + +#define DO_MIN \ + if ( args[1] < args[0] ) \ + args[0] = args[1]; + + +#ifndef TT_CONFIG_OPTION_INTERPRETER_SWITCH + + +#undef ARRAY_BOUND_ERROR +#define ARRAY_BOUND_ERROR \ + { \ + CUR.error = TT_Err_Invalid_Reference; \ + return; \ + } + + + /*************************************************************************/ + /* */ + /* SVTCA[a]: Set (F and P) Vectors to Coordinate Axis */ + /* Opcode range: 0x00-0x01 */ + /* Stack: --> */ + /* */ + static void + Ins_SVTCA( INS_ARG ) + { + DO_SVTCA + } + + + /*************************************************************************/ + /* */ + /* SPVTCA[a]: Set PVector to Coordinate Axis */ + /* Opcode range: 0x02-0x03 */ + /* Stack: --> */ + /* */ + static void + Ins_SPVTCA( INS_ARG ) + { + DO_SPVTCA + } + + + /*************************************************************************/ + /* */ + /* SFVTCA[a]: Set FVector to Coordinate Axis */ + /* Opcode range: 0x04-0x05 */ + /* Stack: --> */ + /* */ + static void + Ins_SFVTCA( INS_ARG ) + { + DO_SFVTCA + } + + + /*************************************************************************/ + /* */ + /* SPVTL[a]: Set PVector To Line */ + /* Opcode range: 0x06-0x07 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_SPVTL( INS_ARG ) + { + DO_SPVTL + } + + + /*************************************************************************/ + /* */ + /* SFVTL[a]: Set FVector To Line */ + /* Opcode range: 0x08-0x09 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_SFVTL( INS_ARG ) + { + DO_SFVTL + } + + + /*************************************************************************/ + /* */ + /* SFVTPV[]: Set FVector To PVector */ + /* Opcode range: 0x0E */ + /* Stack: --> */ + /* */ + static void + Ins_SFVTPV( INS_ARG ) + { + DO_SFVTPV + } + + + /*************************************************************************/ + /* */ + /* SPVFS[]: Set PVector From Stack */ + /* Opcode range: 0x0A */ + /* Stack: f2.14 f2.14 --> */ + /* */ + static void + Ins_SPVFS( INS_ARG ) + { + DO_SPVFS + } + + + /*************************************************************************/ + /* */ + /* SFVFS[]: Set FVector From Stack */ + /* Opcode range: 0x0B */ + /* Stack: f2.14 f2.14 --> */ + /* */ + static void + Ins_SFVFS( INS_ARG ) + { + DO_SFVFS + } + + + /*************************************************************************/ + /* */ + /* GPV[]: Get Projection Vector */ + /* Opcode range: 0x0C */ + /* Stack: ef2.14 --> ef2.14 */ + /* */ + static void + Ins_GPV( INS_ARG ) + { + DO_GPV + } + + + /*************************************************************************/ + /* GFV[]: Get Freedom Vector */ + /* Opcode range: 0x0D */ + /* Stack: ef2.14 --> ef2.14 */ + /* */ + static void + Ins_GFV( INS_ARG ) + { + DO_GFV + } + + + /*************************************************************************/ + /* */ + /* SRP0[]: Set Reference Point 0 */ + /* Opcode range: 0x10 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SRP0( INS_ARG ) + { + DO_SRP0 + } + + + /*************************************************************************/ + /* */ + /* SRP1[]: Set Reference Point 1 */ + /* Opcode range: 0x11 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SRP1( INS_ARG ) + { + DO_SRP1 + } + + + /*************************************************************************/ + /* */ + /* SRP2[]: Set Reference Point 2 */ + /* Opcode range: 0x12 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SRP2( INS_ARG ) + { + DO_SRP2 + } + + + /*************************************************************************/ + /* */ + /* RTHG[]: Round To Half Grid */ + /* Opcode range: 0x19 */ + /* Stack: --> */ + /* */ + static void + Ins_RTHG( INS_ARG ) + { + DO_RTHG + } + + + /*************************************************************************/ + /* */ + /* RTG[]: Round To Grid */ + /* Opcode range: 0x18 */ + /* Stack: --> */ + /* */ + static void + Ins_RTG( INS_ARG ) + { + DO_RTG + } + + + /*************************************************************************/ + /* RTDG[]: Round To Double Grid */ + /* Opcode range: 0x3D */ + /* Stack: --> */ + /* */ + static void + Ins_RTDG( INS_ARG ) + { + DO_RTDG + } + + + /*************************************************************************/ + /* RUTG[]: Round Up To Grid */ + /* Opcode range: 0x7C */ + /* Stack: --> */ + /* */ + static void + Ins_RUTG( INS_ARG ) + { + DO_RUTG + } + + + /*************************************************************************/ + /* */ + /* RDTG[]: Round Down To Grid */ + /* Opcode range: 0x7D */ + /* Stack: --> */ + /* */ + static void + Ins_RDTG( INS_ARG ) + { + DO_RDTG + } + + + /*************************************************************************/ + /* */ + /* ROFF[]: Round OFF */ + /* Opcode range: 0x7A */ + /* Stack: --> */ + /* */ + static void + Ins_ROFF( INS_ARG ) + { + DO_ROFF + } + + + /*************************************************************************/ + /* */ + /* SROUND[]: Super ROUND */ + /* Opcode range: 0x76 */ + /* Stack: Eint8 --> */ + /* */ + static void + Ins_SROUND( INS_ARG ) + { + DO_SROUND + } + + + /*************************************************************************/ + /* */ + /* S45ROUND[]: Super ROUND 45 degrees */ + /* Opcode range: 0x77 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_S45ROUND( INS_ARG ) + { + DO_S45ROUND + } + + + /*************************************************************************/ + /* */ + /* SLOOP[]: Set LOOP variable */ + /* Opcode range: 0x17 */ + /* Stack: int32? --> */ + /* */ + static void + Ins_SLOOP( INS_ARG ) + { + DO_SLOOP + } + + + /*************************************************************************/ + /* */ + /* SMD[]: Set Minimum Distance */ + /* Opcode range: 0x1A */ + /* Stack: f26.6 --> */ + /* */ + static void + Ins_SMD( INS_ARG ) + { + DO_SMD + } + + + /*************************************************************************/ + /* */ + /* SCVTCI[]: Set Control Value Table Cut In */ + /* Opcode range: 0x1D */ + /* Stack: f26.6 --> */ + /* */ + static void + Ins_SCVTCI( INS_ARG ) + { + DO_SCVTCI + } + + + /*************************************************************************/ + /* */ + /* SSWCI[]: Set Single Width Cut In */ + /* Opcode range: 0x1E */ + /* Stack: f26.6 --> */ + /* */ + static void + Ins_SSWCI( INS_ARG ) + { + DO_SSWCI + } + + + /*************************************************************************/ + /* */ + /* SSW[]: Set Single Width */ + /* Opcode range: 0x1F */ + /* Stack: int32? --> */ + /* */ + static void + Ins_SSW( INS_ARG ) + { + DO_SSW + } + + + /*************************************************************************/ + /* */ + /* FLIPON[]: Set auto-FLIP to ON */ + /* Opcode range: 0x4D */ + /* Stack: --> */ + /* */ + static void + Ins_FLIPON( INS_ARG ) + { + DO_FLIPON + } + + + /*************************************************************************/ + /* */ + /* FLIPOFF[]: Set auto-FLIP to OFF */ + /* Opcode range: 0x4E */ + /* Stack: --> */ + /* */ + static void + Ins_FLIPOFF( INS_ARG ) + { + DO_FLIPOFF + } + + + /*************************************************************************/ + /* */ + /* SANGW[]: Set ANGle Weight */ + /* Opcode range: 0x7E */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SANGW( INS_ARG ) + { + /* instruction not supported anymore */ + } + + + /*************************************************************************/ + /* */ + /* SDB[]: Set Delta Base */ + /* Opcode range: 0x5E */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SDB( INS_ARG ) + { + DO_SDB + } + + + /*************************************************************************/ + /* */ + /* SDS[]: Set Delta Shift */ + /* Opcode range: 0x5F */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SDS( INS_ARG ) + { + DO_SDS + } + + + /*************************************************************************/ + /* */ + /* MPPEM[]: Measure Pixel Per EM */ + /* Opcode range: 0x4B */ + /* Stack: --> Euint16 */ + /* */ + static void + Ins_MPPEM( INS_ARG ) + { + DO_MPPEM + } + + + /*************************************************************************/ + /* */ + /* MPS[]: Measure Point Size */ + /* Opcode range: 0x4C */ + /* Stack: --> Euint16 */ + /* */ + static void + Ins_MPS( INS_ARG ) + { + DO_MPS + } + + + /*************************************************************************/ + /* */ + /* DUP[]: DUPlicate the top stack's element */ + /* Opcode range: 0x20 */ + /* Stack: StkElt --> StkElt StkElt */ + /* */ + static void + Ins_DUP( INS_ARG ) + { + DO_DUP + } + + + /*************************************************************************/ + /* */ + /* POP[]: POP the stack's top element */ + /* Opcode range: 0x21 */ + /* Stack: StkElt --> */ + /* */ + static void + Ins_POP( INS_ARG ) + { + /* nothing to do */ + } + + + /*************************************************************************/ + /* */ + /* CLEAR[]: CLEAR the entire stack */ + /* Opcode range: 0x22 */ + /* Stack: StkElt... --> */ + /* */ + static void + Ins_CLEAR( INS_ARG ) + { + DO_CLEAR + } + + + /*************************************************************************/ + /* */ + /* SWAP[]: SWAP the stack's top two elements */ + /* Opcode range: 0x23 */ + /* Stack: 2 * StkElt --> 2 * StkElt */ + /* */ + static void + Ins_SWAP( INS_ARG ) + { + DO_SWAP + } + + + /*************************************************************************/ + /* */ + /* DEPTH[]: return the stack DEPTH */ + /* Opcode range: 0x24 */ + /* Stack: --> uint32 */ + /* */ + static void + Ins_DEPTH( INS_ARG ) + { + DO_DEPTH + } + + + /*************************************************************************/ + /* */ + /* CINDEX[]: Copy INDEXed element */ + /* Opcode range: 0x25 */ + /* Stack: int32 --> StkElt */ + /* */ + static void + Ins_CINDEX( INS_ARG ) + { + DO_CINDEX + } + + + /*************************************************************************/ + /* */ + /* EIF[]: End IF */ + /* Opcode range: 0x59 */ + /* Stack: --> */ + /* */ + static void + Ins_EIF( INS_ARG ) + { + /* nothing to do */ + } + + + /*************************************************************************/ + /* */ + /* JROT[]: Jump Relative On True */ + /* Opcode range: 0x78 */ + /* Stack: StkElt int32 --> */ + /* */ + static void + Ins_JROT( INS_ARG ) + { + DO_JROT + } + + + /*************************************************************************/ + /* */ + /* JMPR[]: JuMP Relative */ + /* Opcode range: 0x1C */ + /* Stack: int32 --> */ + /* */ + static void + Ins_JMPR( INS_ARG ) + { + DO_JMPR + } + + + /*************************************************************************/ + /* */ + /* JROF[]: Jump Relative On False */ + /* Opcode range: 0x79 */ + /* Stack: StkElt int32 --> */ + /* */ + static void + Ins_JROF( INS_ARG ) + { + DO_JROF + } + + + /*************************************************************************/ + /* */ + /* LT[]: Less Than */ + /* Opcode range: 0x50 */ + /* Stack: int32? int32? --> bool */ + /* */ + static void + Ins_LT( INS_ARG ) + { + DO_LT + } + + + /*************************************************************************/ + /* */ + /* LTEQ[]: Less Than or EQual */ + /* Opcode range: 0x51 */ + /* Stack: int32? int32? --> bool */ + /* */ + static void + Ins_LTEQ( INS_ARG ) + { + DO_LTEQ + } + + + /*************************************************************************/ + /* */ + /* GT[]: Greater Than */ + /* Opcode range: 0x52 */ + /* Stack: int32? int32? --> bool */ + /* */ + static void + Ins_GT( INS_ARG ) + { + DO_GT + } + + + /*************************************************************************/ + /* */ + /* GTEQ[]: Greater Than or EQual */ + /* Opcode range: 0x53 */ + /* Stack: int32? int32? --> bool */ + /* */ + static void + Ins_GTEQ( INS_ARG ) + { + DO_GTEQ + } + + + /*************************************************************************/ + /* */ + /* EQ[]: EQual */ + /* Opcode range: 0x54 */ + /* Stack: StkElt StkElt --> bool */ + /* */ + static void + Ins_EQ( INS_ARG ) + { + DO_EQ + } + + + /*************************************************************************/ + /* */ + /* NEQ[]: Not EQual */ + /* Opcode range: 0x55 */ + /* Stack: StkElt StkElt --> bool */ + /* */ + static void + Ins_NEQ( INS_ARG ) + { + DO_NEQ + } + + + /*************************************************************************/ + /* */ + /* ODD[]: Is ODD */ + /* Opcode range: 0x56 */ + /* Stack: f26.6 --> bool */ + /* */ + static void + Ins_ODD( INS_ARG ) + { + DO_ODD + } + + + /*************************************************************************/ + /* */ + /* EVEN[]: Is EVEN */ + /* Opcode range: 0x57 */ + /* Stack: f26.6 --> bool */ + /* */ + static void + Ins_EVEN( INS_ARG ) + { + DO_EVEN + } + + + /*************************************************************************/ + /* */ + /* AND[]: logical AND */ + /* Opcode range: 0x5A */ + /* Stack: uint32 uint32 --> uint32 */ + /* */ + static void + Ins_AND( INS_ARG ) + { + DO_AND + } + + + /*************************************************************************/ + /* */ + /* OR[]: logical OR */ + /* Opcode range: 0x5B */ + /* Stack: uint32 uint32 --> uint32 */ + /* */ + static void + Ins_OR( INS_ARG ) + { + DO_OR + } + + + /*************************************************************************/ + /* */ + /* NOT[]: logical NOT */ + /* Opcode range: 0x5C */ + /* Stack: StkElt --> uint32 */ + /* */ + static void + Ins_NOT( INS_ARG ) + { + DO_NOT + } + + + /*************************************************************************/ + /* */ + /* ADD[]: ADD */ + /* Opcode range: 0x60 */ + /* Stack: f26.6 f26.6 --> f26.6 */ + /* */ + static void + Ins_ADD( INS_ARG ) + { + DO_ADD + } + + + /*************************************************************************/ + /* */ + /* SUB[]: SUBtract */ + /* Opcode range: 0x61 */ + /* Stack: f26.6 f26.6 --> f26.6 */ + /* */ + static void + Ins_SUB( INS_ARG ) + { + DO_SUB + } + + + /*************************************************************************/ + /* */ + /* DIV[]: DIVide */ + /* Opcode range: 0x62 */ + /* Stack: f26.6 f26.6 --> f26.6 */ + /* */ + static void + Ins_DIV( INS_ARG ) + { + DO_DIV + } + + + /*************************************************************************/ + /* */ + /* MUL[]: MULtiply */ + /* Opcode range: 0x63 */ + /* Stack: f26.6 f26.6 --> f26.6 */ + /* */ + static void + Ins_MUL( INS_ARG ) + { + DO_MUL + } + + + /*************************************************************************/ + /* */ + /* ABS[]: ABSolute value */ + /* Opcode range: 0x64 */ + /* Stack: f26.6 --> f26.6 */ + /* */ + static void + Ins_ABS( INS_ARG ) + { + DO_ABS + } + + + /*************************************************************************/ + /* */ + /* NEG[]: NEGate */ + /* Opcode range: 0x65 */ + /* Stack: f26.6 --> f26.6 */ + /* */ + static void + Ins_NEG( INS_ARG ) + { + DO_NEG + } + + + /*************************************************************************/ + /* */ + /* FLOOR[]: FLOOR */ + /* Opcode range: 0x66 */ + /* Stack: f26.6 --> f26.6 */ + /* */ + static void + Ins_FLOOR( INS_ARG ) + { + DO_FLOOR + } + + + /*************************************************************************/ + /* */ + /* CEILING[]: CEILING */ + /* Opcode range: 0x67 */ + /* Stack: f26.6 --> f26.6 */ + /* */ + static void + Ins_CEILING( INS_ARG ) + { + DO_CEILING + } + + + /*************************************************************************/ + /* */ + /* RS[]: Read Store */ + /* Opcode range: 0x43 */ + /* Stack: uint32 --> uint32 */ + /* */ + static void + Ins_RS( INS_ARG ) + { + DO_RS + } + + + /*************************************************************************/ + /* */ + /* WS[]: Write Store */ + /* Opcode range: 0x42 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_WS( INS_ARG ) + { + DO_WS + } + + + /*************************************************************************/ + /* */ + /* WCVTP[]: Write CVT in Pixel units */ + /* Opcode range: 0x44 */ + /* Stack: f26.6 uint32 --> */ + /* */ + static void + Ins_WCVTP( INS_ARG ) + { + DO_WCVTP + } + + + /*************************************************************************/ + /* */ + /* WCVTF[]: Write CVT in Funits */ + /* Opcode range: 0x70 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_WCVTF( INS_ARG ) + { + DO_WCVTF + } + + + /*************************************************************************/ + /* */ + /* RCVT[]: Read CVT */ + /* Opcode range: 0x45 */ + /* Stack: uint32 --> f26.6 */ + /* */ + static void + Ins_RCVT( INS_ARG ) + { + DO_RCVT + } + + + /*************************************************************************/ + /* */ + /* AA[]: Adjust Angle */ + /* Opcode range: 0x7F */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_AA( INS_ARG ) + { + /* intentionally no longer supported */ + } + + + /*************************************************************************/ + /* */ + /* DEBUG[]: DEBUG. Unsupported. */ + /* Opcode range: 0x4F */ + /* Stack: uint32 --> */ + /* */ + /* Note: The original instruction pops a value from the stack. */ + /* */ + static void + Ins_DEBUG( INS_ARG ) + { + DO_DEBUG + } + + + /*************************************************************************/ + /* */ + /* ROUND[ab]: ROUND value */ + /* Opcode range: 0x68-0x6B */ + /* Stack: f26.6 --> f26.6 */ + /* */ + static void + Ins_ROUND( INS_ARG ) + { + DO_ROUND + } + + + /*************************************************************************/ + /* */ + /* NROUND[ab]: No ROUNDing of value */ + /* Opcode range: 0x6C-0x6F */ + /* Stack: f26.6 --> f26.6 */ + /* */ + static void + Ins_NROUND( INS_ARG ) + { + DO_NROUND + } + + + /*************************************************************************/ + /* */ + /* MAX[]: MAXimum */ + /* Opcode range: 0x68 */ + /* Stack: int32? int32? --> int32 */ + /* */ + static void + Ins_MAX( INS_ARG ) + { + DO_MAX + } + + + /*************************************************************************/ + /* */ + /* MIN[]: MINimum */ + /* Opcode range: 0x69 */ + /* Stack: int32? int32? --> int32 */ + /* */ + static void + Ins_MIN( INS_ARG ) + { + DO_MIN + } + + +#endif /* !TT_CONFIG_OPTION_INTERPRETER_SWITCH */ + + + /*************************************************************************/ + /* */ + /* The following functions are called as is within the switch statement. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* MINDEX[]: Move INDEXed element */ + /* Opcode range: 0x26 */ + /* Stack: int32? --> StkElt */ + /* */ + static void + Ins_MINDEX( INS_ARG ) + { + FT_Long L, K; + + + L = args[0]; + + if ( L <= 0 || L > CUR.args ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + } + else + { + K = CUR.stack[CUR.args - L]; + + FT_ARRAY_MOVE( &CUR.stack[CUR.args - L ], + &CUR.stack[CUR.args - L + 1], + ( L - 1 ) ); + + CUR.stack[CUR.args - 1] = K; + } + } + + + /*************************************************************************/ + /* */ + /* ROLL[]: ROLL top three elements */ + /* Opcode range: 0x8A */ + /* Stack: 3 * StkElt --> 3 * StkElt */ + /* */ + static void + Ins_ROLL( INS_ARG ) + { + FT_Long A, B, C; + + FT_UNUSED_EXEC; + + + A = args[2]; + B = args[1]; + C = args[0]; + + args[2] = C; + args[1] = A; + args[0] = B; + } + + + /*************************************************************************/ + /* */ + /* MANAGING THE FLOW OF CONTROL */ + /* */ + /* Instructions appear in the specification's order. */ + /* */ + /*************************************************************************/ + + + static FT_Bool + SkipCode( EXEC_OP ) + { + CUR.IP += CUR.length; + + if ( CUR.IP < CUR.codeSize ) + { + CUR.opcode = CUR.code[CUR.IP]; + + CUR.length = opcode_length[CUR.opcode]; + if ( CUR.length < 0 ) + { + if ( CUR.IP + 1 >= CUR.codeSize ) + goto Fail_Overflow; + CUR.length = 2 - CUR.length * CUR.code[CUR.IP + 1]; + } + + if ( CUR.IP + CUR.length <= CUR.codeSize ) + return SUCCESS; + } + + Fail_Overflow: + CUR.error = TT_Err_Code_Overflow; + return FAILURE; + } + + + /*************************************************************************/ + /* */ + /* IF[]: IF test */ + /* Opcode range: 0x58 */ + /* Stack: StkElt --> */ + /* */ + static void + Ins_IF( INS_ARG ) + { + FT_Int nIfs; + FT_Bool Out; + + + if ( args[0] != 0 ) + return; + + nIfs = 1; + Out = 0; + + do + { + if ( SKIP_Code() == FAILURE ) + return; + + switch ( CUR.opcode ) + { + case 0x58: /* IF */ + nIfs++; + break; + + case 0x1B: /* ELSE */ + Out = FT_BOOL( nIfs == 1 ); + break; + + case 0x59: /* EIF */ + nIfs--; + Out = FT_BOOL( nIfs == 0 ); + break; + } + } while ( Out == 0 ); + } + + + /*************************************************************************/ + /* */ + /* ELSE[]: ELSE */ + /* Opcode range: 0x1B */ + /* Stack: --> */ + /* */ + static void + Ins_ELSE( INS_ARG ) + { + FT_Int nIfs; + + FT_UNUSED_ARG; + + + nIfs = 1; + + do + { + if ( SKIP_Code() == FAILURE ) + return; + + switch ( CUR.opcode ) + { + case 0x58: /* IF */ + nIfs++; + break; + + case 0x59: /* EIF */ + nIfs--; + break; + } + } while ( nIfs != 0 ); + } + + + /*************************************************************************/ + /* */ + /* DEFINING AND USING FUNCTIONS AND INSTRUCTIONS */ + /* */ + /* Instructions appear in the specification's order. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* FDEF[]: Function DEFinition */ + /* Opcode range: 0x2C */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_FDEF( INS_ARG ) + { + FT_ULong n; + TT_DefRecord* rec; + TT_DefRecord* limit; + + + /* some font programs are broken enough to redefine functions! */ + /* We will then parse the current table. */ + + rec = CUR.FDefs; + limit = rec + CUR.numFDefs; + n = args[0]; + + for ( ; rec < limit; rec++ ) + { + if ( rec->opc == n ) + break; + } + + if ( rec == limit ) + { + /* check that there is enough room for new functions */ + if ( CUR.numFDefs >= CUR.maxFDefs ) + { + CUR.error = TT_Err_Too_Many_Function_Defs; + return; + } + CUR.numFDefs++; + } + + /* Although FDEF takes unsigned 32-bit integer, */ + /* func # must be within unsigned 16-bit integer */ + if ( n > 0xFFFFU ) + { + CUR.error = TT_Err_Too_Many_Function_Defs; + return; + } + + rec->range = CUR.curRange; + rec->opc = (FT_UInt16)n; + rec->start = CUR.IP + 1; + rec->active = TRUE; + + if ( n > CUR.maxFunc ) + CUR.maxFunc = (FT_UInt16)n; + + /* Now skip the whole function definition. */ + /* We don't allow nested IDEFS & FDEFs. */ + + while ( SKIP_Code() == SUCCESS ) + { + switch ( CUR.opcode ) + { + case 0x89: /* IDEF */ + case 0x2C: /* FDEF */ + CUR.error = TT_Err_Nested_DEFS; + return; + + case 0x2D: /* ENDF */ + rec->end = CUR.IP; + return; + } + } + } + + + /*************************************************************************/ + /* */ + /* ENDF[]: END Function definition */ + /* Opcode range: 0x2D */ + /* Stack: --> */ + /* */ + static void + Ins_ENDF( INS_ARG ) + { + TT_CallRec* pRec; + + FT_UNUSED_ARG; + + + if ( CUR.callTop <= 0 ) /* We encountered an ENDF without a call */ + { + CUR.error = TT_Err_ENDF_In_Exec_Stream; + return; + } + + CUR.callTop--; + + pRec = &CUR.callStack[CUR.callTop]; + + pRec->Cur_Count--; + + CUR.step_ins = FALSE; + + if ( pRec->Cur_Count > 0 ) + { + CUR.callTop++; + CUR.IP = pRec->Cur_Restart; + } + else + /* Loop through the current function */ + INS_Goto_CodeRange( pRec->Caller_Range, + pRec->Caller_IP ); + + /* Exit the current call frame. */ + + /* NOTE: If the last instruction of a program is a */ + /* CALL or LOOPCALL, the return address is */ + /* always out of the code range. This is a */ + /* valid address, and it is why we do not test */ + /* the result of Ins_Goto_CodeRange() here! */ + } + + + /*************************************************************************/ + /* */ + /* CALL[]: CALL function */ + /* Opcode range: 0x2B */ + /* Stack: uint32? --> */ + /* */ + static void + Ins_CALL( INS_ARG ) + { + FT_ULong F; + TT_CallRec* pCrec; + TT_DefRecord* def; + + + /* first of all, check the index */ + + F = args[0]; + if ( BOUNDSL( F, CUR.maxFunc + 1 ) ) + goto Fail; + + /* Except for some old Apple fonts, all functions in a TrueType */ + /* font are defined in increasing order, starting from 0. This */ + /* means that we normally have */ + /* */ + /* CUR.maxFunc+1 == CUR.numFDefs */ + /* CUR.FDefs[n].opc == n for n in 0..CUR.maxFunc */ + /* */ + /* If this isn't true, we need to look up the function table. */ + + def = CUR.FDefs + F; + if ( CUR.maxFunc + 1 != CUR.numFDefs || def->opc != F ) + { + /* look up the FDefs table */ + TT_DefRecord* limit; + + + def = CUR.FDefs; + limit = def + CUR.numFDefs; + + while ( def < limit && def->opc != F ) + def++; + + if ( def == limit ) + goto Fail; + } + + /* check that the function is active */ + if ( !def->active ) + goto Fail; + + /* check the call stack */ + if ( CUR.callTop >= CUR.callSize ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + pCrec = CUR.callStack + CUR.callTop; + + pCrec->Caller_Range = CUR.curRange; + pCrec->Caller_IP = CUR.IP + 1; + pCrec->Cur_Count = 1; + pCrec->Cur_Restart = def->start; + pCrec->Cur_End = def->end; + + CUR.callTop++; + + INS_Goto_CodeRange( def->range, + def->start ); + + CUR.step_ins = FALSE; + return; + + Fail: + CUR.error = TT_Err_Invalid_Reference; + } + + + /*************************************************************************/ + /* */ + /* LOOPCALL[]: LOOP and CALL function */ + /* Opcode range: 0x2A */ + /* Stack: uint32? Eint16? --> */ + /* */ + static void + Ins_LOOPCALL( INS_ARG ) + { + FT_ULong F; + TT_CallRec* pCrec; + TT_DefRecord* def; + + + /* first of all, check the index */ + F = args[1]; + if ( BOUNDSL( F, CUR.maxFunc + 1 ) ) + goto Fail; + + /* Except for some old Apple fonts, all functions in a TrueType */ + /* font are defined in increasing order, starting from 0. This */ + /* means that we normally have */ + /* */ + /* CUR.maxFunc+1 == CUR.numFDefs */ + /* CUR.FDefs[n].opc == n for n in 0..CUR.maxFunc */ + /* */ + /* If this isn't true, we need to look up the function table. */ + + def = CUR.FDefs + F; + if ( CUR.maxFunc + 1 != CUR.numFDefs || def->opc != F ) + { + /* look up the FDefs table */ + TT_DefRecord* limit; + + + def = CUR.FDefs; + limit = def + CUR.numFDefs; + + while ( def < limit && def->opc != F ) + def++; + + if ( def == limit ) + goto Fail; + } + + /* check that the function is active */ + if ( !def->active ) + goto Fail; + + /* check stack */ + if ( CUR.callTop >= CUR.callSize ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + if ( args[0] > 0 ) + { + pCrec = CUR.callStack + CUR.callTop; + + pCrec->Caller_Range = CUR.curRange; + pCrec->Caller_IP = CUR.IP + 1; + pCrec->Cur_Count = (FT_Int)args[0]; + pCrec->Cur_Restart = def->start; + pCrec->Cur_End = def->end; + + CUR.callTop++; + + INS_Goto_CodeRange( def->range, def->start ); + + CUR.step_ins = FALSE; + } + return; + + Fail: + CUR.error = TT_Err_Invalid_Reference; + } + + + /*************************************************************************/ + /* */ + /* IDEF[]: Instruction DEFinition */ + /* Opcode range: 0x89 */ + /* Stack: Eint8 --> */ + /* */ + static void + Ins_IDEF( INS_ARG ) + { + TT_DefRecord* def; + TT_DefRecord* limit; + + + /* First of all, look for the same function in our table */ + + def = CUR.IDefs; + limit = def + CUR.numIDefs; + + for ( ; def < limit; def++ ) + if ( def->opc == (FT_ULong)args[0] ) + break; + + if ( def == limit ) + { + /* check that there is enough room for a new instruction */ + if ( CUR.numIDefs >= CUR.maxIDefs ) + { + CUR.error = TT_Err_Too_Many_Instruction_Defs; + return; + } + CUR.numIDefs++; + } + + /* opcode must be unsigned 8-bit integer */ + if ( 0 > args[0] || args[0] > 0x00FF ) + { + CUR.error = TT_Err_Too_Many_Instruction_Defs; + return; + } + + def->opc = (FT_Byte)args[0]; + def->start = CUR.IP + 1; + def->range = CUR.curRange; + def->active = TRUE; + + if ( (FT_ULong)args[0] > CUR.maxIns ) + CUR.maxIns = (FT_Byte)args[0]; + + /* Now skip the whole function definition. */ + /* We don't allow nested IDEFs & FDEFs. */ + + while ( SKIP_Code() == SUCCESS ) + { + switch ( CUR.opcode ) + { + case 0x89: /* IDEF */ + case 0x2C: /* FDEF */ + CUR.error = TT_Err_Nested_DEFS; + return; + case 0x2D: /* ENDF */ + return; + } + } + } + + + /*************************************************************************/ + /* */ + /* PUSHING DATA ONTO THE INTERPRETER STACK */ + /* */ + /* Instructions appear in the specification's order. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* NPUSHB[]: PUSH N Bytes */ + /* Opcode range: 0x40 */ + /* Stack: --> uint32... */ + /* */ + static void + Ins_NPUSHB( INS_ARG ) + { + FT_UShort L, K; + + + L = (FT_UShort)CUR.code[CUR.IP + 1]; + + if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + for ( K = 1; K <= L; K++ ) + args[K - 1] = CUR.code[CUR.IP + K + 1]; + + CUR.new_top += L; + } + + + /*************************************************************************/ + /* */ + /* NPUSHW[]: PUSH N Words */ + /* Opcode range: 0x41 */ + /* Stack: --> int32... */ + /* */ + static void + Ins_NPUSHW( INS_ARG ) + { + FT_UShort L, K; + + + L = (FT_UShort)CUR.code[CUR.IP + 1]; + + if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + CUR.IP += 2; + + for ( K = 0; K < L; K++ ) + args[K] = GET_ShortIns(); + + CUR.step_ins = FALSE; + CUR.new_top += L; + } + + + /*************************************************************************/ + /* */ + /* PUSHB[abc]: PUSH Bytes */ + /* Opcode range: 0xB0-0xB7 */ + /* Stack: --> uint32... */ + /* */ + static void + Ins_PUSHB( INS_ARG ) + { + FT_UShort L, K; + + + L = (FT_UShort)( CUR.opcode - 0xB0 + 1 ); + + if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + for ( K = 1; K <= L; K++ ) + args[K - 1] = CUR.code[CUR.IP + K]; + } + + + /*************************************************************************/ + /* */ + /* PUSHW[abc]: PUSH Words */ + /* Opcode range: 0xB8-0xBF */ + /* Stack: --> int32... */ + /* */ + static void + Ins_PUSHW( INS_ARG ) + { + FT_UShort L, K; + + + L = (FT_UShort)( CUR.opcode - 0xB8 + 1 ); + + if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + CUR.IP++; + + for ( K = 0; K < L; K++ ) + args[K] = GET_ShortIns(); + + CUR.step_ins = FALSE; + } + + + /*************************************************************************/ + /* */ + /* MANAGING THE GRAPHICS STATE */ + /* */ + /* Instructions appear in the specs' order. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* GC[a]: Get Coordinate projected onto */ + /* Opcode range: 0x46-0x47 */ + /* Stack: uint32 --> f26.6 */ + /* */ + /* XXX: UNDOCUMENTED: Measures from the original glyph must be taken */ + /* along the dual projection vector! */ + /* */ + static void + Ins_GC( INS_ARG ) + { + FT_ULong L; + FT_F26Dot6 R; + + + L = (FT_ULong)args[0]; + + if ( BOUNDSL( L, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + R = 0; + } + else + { + if ( CUR.opcode & 1 ) + R = CUR_fast_dualproj( &CUR.zp2.org[L] ); + else + R = CUR_fast_project( &CUR.zp2.cur[L] ); + } + + args[0] = R; + } + + + /*************************************************************************/ + /* */ + /* SCFS[]: Set Coordinate From Stack */ + /* Opcode range: 0x48 */ + /* Stack: f26.6 uint32 --> */ + /* */ + /* Formula: */ + /* */ + /* OA := OA + ( value - OA.p )/( f.p ) * f */ + /* */ + static void + Ins_SCFS( INS_ARG ) + { + FT_Long K; + FT_UShort L; + + + L = (FT_UShort)args[0]; + + if ( BOUNDS( L, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + K = CUR_fast_project( &CUR.zp2.cur[L] ); + + CUR_Func_move( &CUR.zp2, L, args[1] - K ); + + /* UNDOCUMENTED! The MS rasterizer does that with */ + /* twilight points (confirmed by Greg Hitchcock) */ + if ( CUR.GS.gep2 == 0 ) + CUR.zp2.org[L] = CUR.zp2.cur[L]; + } + + + /*************************************************************************/ + /* */ + /* MD[a]: Measure Distance */ + /* Opcode range: 0x49-0x4A */ + /* Stack: uint32 uint32 --> f26.6 */ + /* */ + /* XXX: UNDOCUMENTED: Measure taken in the original glyph must be along */ + /* the dual projection vector. */ + /* */ + /* XXX: UNDOCUMENTED: Flag attributes are inverted! */ + /* 0 => measure distance in original outline */ + /* 1 => measure distance in grid-fitted outline */ + /* */ + /* XXX: UNDOCUMENTED: `zp0 - zp1', and not `zp2 - zp1! */ + /* */ + static void + Ins_MD( INS_ARG ) + { + FT_UShort K, L; + FT_F26Dot6 D; + + + K = (FT_UShort)args[1]; + L = (FT_UShort)args[0]; + + if ( BOUNDS( L, CUR.zp0.n_points ) || + BOUNDS( K, CUR.zp1.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + D = 0; + } + else + { + if ( CUR.opcode & 1 ) + D = CUR_Func_project( CUR.zp0.cur + L, CUR.zp1.cur + K ); + else + { + /* XXX: UNDOCUMENTED: twilight zone special case */ + + if ( CUR.GS.gep0 == 0 || CUR.GS.gep1 == 0 ) + { + FT_Vector* vec1 = CUR.zp0.org + L; + FT_Vector* vec2 = CUR.zp1.org + K; + + + D = CUR_Func_dualproj( vec1, vec2 ); + } + else + { + FT_Vector* vec1 = CUR.zp0.orus + L; + FT_Vector* vec2 = CUR.zp1.orus + K; + + + if ( CUR.metrics.x_scale == CUR.metrics.y_scale ) + { + /* this should be faster */ + D = CUR_Func_dualproj( vec1, vec2 ); + D = TT_MULFIX( D, CUR.metrics.x_scale ); + } + else + { + FT_Vector vec; + + + vec.x = TT_MULFIX( vec1->x - vec2->x, CUR.metrics.x_scale ); + vec.y = TT_MULFIX( vec1->y - vec2->y, CUR.metrics.y_scale ); + + D = CUR_fast_dualproj( &vec ); + } + } + } + } + + args[0] = D; + } + + + /*************************************************************************/ + /* */ + /* SDPVTL[a]: Set Dual PVector to Line */ + /* Opcode range: 0x86-0x87 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_SDPVTL( INS_ARG ) + { + FT_Long A, B, C; + FT_UShort p1, p2; /* was FT_Int in pas type ERROR */ + FT_Int aOpc = CUR.opcode; + + + p1 = (FT_UShort)args[1]; + p2 = (FT_UShort)args[0]; + + if ( BOUNDS( p2, CUR.zp1.n_points ) || + BOUNDS( p1, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + { + FT_Vector* v1 = CUR.zp1.org + p2; + FT_Vector* v2 = CUR.zp2.org + p1; + + + A = v1->x - v2->x; + B = v1->y - v2->y; + + /* If v1 == v2, SDPVTL behaves the same as */ + /* SVTCA[X], respectively. */ + /* */ + /* Confirmed by Greg Hitchcock. */ + + if ( A == 0 && B == 0 ) + { + A = 0x4000; + aOpc = 0; + } + } + + if ( ( aOpc & 1 ) != 0 ) + { + C = B; /* counter clockwise rotation */ + B = A; + A = -C; + } + + NORMalize( A, B, &CUR.GS.dualVector ); + + { + FT_Vector* v1 = CUR.zp1.cur + p2; + FT_Vector* v2 = CUR.zp2.cur + p1; + + + A = v1->x - v2->x; + B = v1->y - v2->y; + } + + if ( ( aOpc & 1 ) != 0 ) + { + C = B; /* counter clockwise rotation */ + B = A; + A = -C; + } + + NORMalize( A, B, &CUR.GS.projVector ); + + GUESS_VECTOR( freeVector ); + + COMPUTE_Funcs(); + } + + + /*************************************************************************/ + /* */ + /* SZP0[]: Set Zone Pointer 0 */ + /* Opcode range: 0x13 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SZP0( INS_ARG ) + { + switch ( (FT_Int)args[0] ) + { + case 0: + CUR.zp0 = CUR.twilight; + break; + + case 1: + CUR.zp0 = CUR.pts; + break; + + default: + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + CUR.GS.gep0 = (FT_UShort)args[0]; + } + + + /*************************************************************************/ + /* */ + /* SZP1[]: Set Zone Pointer 1 */ + /* Opcode range: 0x14 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SZP1( INS_ARG ) + { + switch ( (FT_Int)args[0] ) + { + case 0: + CUR.zp1 = CUR.twilight; + break; + + case 1: + CUR.zp1 = CUR.pts; + break; + + default: + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + CUR.GS.gep1 = (FT_UShort)args[0]; + } + + + /*************************************************************************/ + /* */ + /* SZP2[]: Set Zone Pointer 2 */ + /* Opcode range: 0x15 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SZP2( INS_ARG ) + { + switch ( (FT_Int)args[0] ) + { + case 0: + CUR.zp2 = CUR.twilight; + break; + + case 1: + CUR.zp2 = CUR.pts; + break; + + default: + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + CUR.GS.gep2 = (FT_UShort)args[0]; + } + + + /*************************************************************************/ + /* */ + /* SZPS[]: Set Zone PointerS */ + /* Opcode range: 0x16 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SZPS( INS_ARG ) + { + switch ( (FT_Int)args[0] ) + { + case 0: + CUR.zp0 = CUR.twilight; + break; + + case 1: + CUR.zp0 = CUR.pts; + break; + + default: + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + CUR.zp1 = CUR.zp0; + CUR.zp2 = CUR.zp0; + + CUR.GS.gep0 = (FT_UShort)args[0]; + CUR.GS.gep1 = (FT_UShort)args[0]; + CUR.GS.gep2 = (FT_UShort)args[0]; + } + + + /*************************************************************************/ + /* */ + /* INSTCTRL[]: INSTruction ConTRoL */ + /* Opcode range: 0x8e */ + /* Stack: int32 int32 --> */ + /* */ + static void + Ins_INSTCTRL( INS_ARG ) + { + FT_Long K, L; + + + K = args[1]; + L = args[0]; + + if ( K < 1 || K > 2 ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + if ( L != 0 ) + L = K; + + CUR.GS.instruct_control = FT_BOOL( + ( (FT_Byte)CUR.GS.instruct_control & ~(FT_Byte)K ) | (FT_Byte)L ); + } + + + /*************************************************************************/ + /* */ + /* SCANCTRL[]: SCAN ConTRoL */ + /* Opcode range: 0x85 */ + /* Stack: uint32? --> */ + /* */ + static void + Ins_SCANCTRL( INS_ARG ) + { + FT_Int A; + + + /* Get Threshold */ + A = (FT_Int)( args[0] & 0xFF ); + + if ( A == 0xFF ) + { + CUR.GS.scan_control = TRUE; + return; + } + else if ( A == 0 ) + { + CUR.GS.scan_control = FALSE; + return; + } + + if ( ( args[0] & 0x100 ) != 0 && CUR.tt_metrics.ppem <= A ) + CUR.GS.scan_control = TRUE; + + if ( ( args[0] & 0x200 ) != 0 && CUR.tt_metrics.rotated ) + CUR.GS.scan_control = TRUE; + + if ( ( args[0] & 0x400 ) != 0 && CUR.tt_metrics.stretched ) + CUR.GS.scan_control = TRUE; + + if ( ( args[0] & 0x800 ) != 0 && CUR.tt_metrics.ppem > A ) + CUR.GS.scan_control = FALSE; + + if ( ( args[0] & 0x1000 ) != 0 && CUR.tt_metrics.rotated ) + CUR.GS.scan_control = FALSE; + + if ( ( args[0] & 0x2000 ) != 0 && CUR.tt_metrics.stretched ) + CUR.GS.scan_control = FALSE; + } + + + /*************************************************************************/ + /* */ + /* SCANTYPE[]: SCAN TYPE */ + /* Opcode range: 0x8D */ + /* Stack: uint32? --> */ + /* */ + static void + Ins_SCANTYPE( INS_ARG ) + { + if ( args[0] >= 0 ) + CUR.GS.scan_type = (FT_Int)args[0]; + } + + + /*************************************************************************/ + /* */ + /* MANAGING OUTLINES */ + /* */ + /* Instructions appear in the specification's order. */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* FLIPPT[]: FLIP PoinT */ + /* Opcode range: 0x80 */ + /* Stack: uint32... --> */ + /* */ + static void + Ins_FLIPPT( INS_ARG ) + { + FT_UShort point; + + FT_UNUSED_ARG; + + + if ( CUR.top < CUR.GS.loop ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Too_Few_Arguments; + goto Fail; + } + + while ( CUR.GS.loop > 0 ) + { + CUR.args--; + + point = (FT_UShort)CUR.stack[CUR.args]; + + if ( BOUNDS( point, CUR.pts.n_points ) ) + { + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Invalid_Reference; + return; + } + } + else + CUR.pts.tags[point] ^= FT_CURVE_TAG_ON; + + CUR.GS.loop--; + } + + Fail: + CUR.GS.loop = 1; + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* FLIPRGON[]: FLIP RanGe ON */ + /* Opcode range: 0x81 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_FLIPRGON( INS_ARG ) + { + FT_UShort I, K, L; + + + K = (FT_UShort)args[1]; + L = (FT_UShort)args[0]; + + if ( BOUNDS( K, CUR.pts.n_points ) || + BOUNDS( L, CUR.pts.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + for ( I = L; I <= K; I++ ) + CUR.pts.tags[I] |= FT_CURVE_TAG_ON; + } + + + /*************************************************************************/ + /* */ + /* FLIPRGOFF: FLIP RanGe OFF */ + /* Opcode range: 0x82 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_FLIPRGOFF( INS_ARG ) + { + FT_UShort I, K, L; + + + K = (FT_UShort)args[1]; + L = (FT_UShort)args[0]; + + if ( BOUNDS( K, CUR.pts.n_points ) || + BOUNDS( L, CUR.pts.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + for ( I = L; I <= K; I++ ) + CUR.pts.tags[I] &= ~FT_CURVE_TAG_ON; + } + + + static FT_Bool + Compute_Point_Displacement( EXEC_OP_ FT_F26Dot6* x, + FT_F26Dot6* y, + TT_GlyphZone zone, + FT_UShort* refp ) + { + TT_GlyphZoneRec zp; + FT_UShort p; + FT_F26Dot6 d; + + + if ( CUR.opcode & 1 ) + { + zp = CUR.zp0; + p = CUR.GS.rp1; + } + else + { + zp = CUR.zp1; + p = CUR.GS.rp2; + } + + if ( BOUNDS( p, zp.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + *refp = 0; + return FAILURE; + } + + *zone = zp; + *refp = p; + + d = CUR_Func_project( zp.cur + p, zp.org + p ); + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + if ( CUR.face->unpatented_hinting ) + { + if ( CUR.GS.both_x_axis ) + { + *x = d; + *y = 0; + } + else + { + *x = 0; + *y = d; + } + } + else +#endif + { + *x = TT_MULDIV( d, + (FT_Long)CUR.GS.freeVector.x * 0x10000L, + CUR.F_dot_P ); + *y = TT_MULDIV( d, + (FT_Long)CUR.GS.freeVector.y * 0x10000L, + CUR.F_dot_P ); + } + + return SUCCESS; + } + + + static void + Move_Zp2_Point( EXEC_OP_ FT_UShort point, + FT_F26Dot6 dx, + FT_F26Dot6 dy, + FT_Bool touch ) + { +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + if ( CUR.face->unpatented_hinting ) + { + if ( CUR.GS.both_x_axis ) + { + CUR.zp2.cur[point].x += dx; + if ( touch ) + CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_X; + } + else + { + CUR.zp2.cur[point].y += dy; + if ( touch ) + CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_Y; + } + return; + } +#endif + + if ( CUR.GS.freeVector.x != 0 ) + { + CUR.zp2.cur[point].x += dx; + if ( touch ) + CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_X; + } + + if ( CUR.GS.freeVector.y != 0 ) + { + CUR.zp2.cur[point].y += dy; + if ( touch ) + CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_Y; + } + } + + + /*************************************************************************/ + /* */ + /* SHP[a]: SHift Point by the last point */ + /* Opcode range: 0x32-0x33 */ + /* Stack: uint32... --> */ + /* */ + static void + Ins_SHP( INS_ARG ) + { + TT_GlyphZoneRec zp; + FT_UShort refp; + + FT_F26Dot6 dx, + dy; + FT_UShort point; + + FT_UNUSED_ARG; + + + if ( CUR.top < CUR.GS.loop ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) ) + return; + + while ( CUR.GS.loop > 0 ) + { + CUR.args--; + point = (FT_UShort)CUR.stack[CUR.args]; + + if ( BOUNDS( point, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Invalid_Reference; + return; + } + } + else + MOVE_Zp2_Point( point, dx, dy, TRUE ); + + CUR.GS.loop--; + } + + Fail: + CUR.GS.loop = 1; + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* SHC[a]: SHift Contour */ + /* Opcode range: 0x34-35 */ + /* Stack: uint32 --> */ + /* */ + /* UNDOCUMENTED: According to Greg Hitchcock, there is one (virtual) */ + /* contour in the twilight zone, namely contour number */ + /* zero. */ + /* */ + static void + Ins_SHC( INS_ARG ) + { + TT_GlyphZoneRec zp; + FT_UShort refp; + FT_F26Dot6 dx, dy; + + FT_Short contour, bounds; + FT_UShort start, limit, i; + + + contour = (FT_UShort)args[0]; + bounds = ( CUR.GS.gep2 == 0 ) ? 1 : CUR.zp2.n_contours; + + if ( BOUNDS( contour, bounds ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) ) + return; + + if ( contour == 0 ) + start = 0; + else + start = (FT_UShort)( CUR.zp2.contours[contour - 1] + 1 - + CUR.zp2.first_point ); + + /* we use the number of points if in the twilight zone */ + if ( CUR.GS.gep2 == 0 ) + limit = CUR.zp2.n_points; + else + limit = (FT_UShort)( CUR.zp2.contours[contour] - + CUR.zp2.first_point + 1 ); + + for ( i = start; i < limit; i++ ) + { + if ( zp.cur != CUR.zp2.cur || refp != i ) + MOVE_Zp2_Point( i, dx, dy, TRUE ); + } + } + + + /*************************************************************************/ + /* */ + /* SHZ[a]: SHift Zone */ + /* Opcode range: 0x36-37 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_SHZ( INS_ARG ) + { + TT_GlyphZoneRec zp; + FT_UShort refp; + FT_F26Dot6 dx, + dy; + + FT_UShort limit, i; + + + if ( BOUNDS( args[0], 2 ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) ) + return; + + /* XXX: UNDOCUMENTED! SHZ doesn't move the phantom points. */ + /* Twilight zone has no real contours, so use `n_points'. */ + /* Normal zone's `n_points' includes phantoms, so must */ + /* use end of last contour. */ + if ( CUR.GS.gep2 == 0 ) + limit = (FT_UShort)CUR.zp2.n_points; + else if ( CUR.GS.gep2 == 1 && CUR.zp2.n_contours > 0 ) + limit = (FT_UShort)( CUR.zp2.contours[CUR.zp2.n_contours - 1] + 1 ); + else + limit = 0; + + /* XXX: UNDOCUMENTED! SHZ doesn't touch the points */ + for ( i = 0; i < limit; i++ ) + { + if ( zp.cur != CUR.zp2.cur || refp != i ) + MOVE_Zp2_Point( i, dx, dy, FALSE ); + } + } + + + /*************************************************************************/ + /* */ + /* SHPIX[]: SHift points by a PIXel amount */ + /* Opcode range: 0x38 */ + /* Stack: f26.6 uint32... --> */ + /* */ + static void + Ins_SHPIX( INS_ARG ) + { + FT_F26Dot6 dx, dy; + FT_UShort point; + + + if ( CUR.top < CUR.GS.loop + 1 ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + if ( CUR.face->unpatented_hinting ) + { + if ( CUR.GS.both_x_axis ) + { + dx = TT_MulFix14( (FT_UInt32)args[0], 0x4000 ); + dy = 0; + } + else + { + dx = 0; + dy = TT_MulFix14( (FT_UInt32)args[0], 0x4000 ); + } + } + else +#endif + { + dx = TT_MulFix14( (FT_UInt32)args[0], CUR.GS.freeVector.x ); + dy = TT_MulFix14( (FT_UInt32)args[0], CUR.GS.freeVector.y ); + } + + while ( CUR.GS.loop > 0 ) + { + CUR.args--; + + point = (FT_UShort)CUR.stack[CUR.args]; + + if ( BOUNDS( point, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Invalid_Reference; + return; + } + } + else + MOVE_Zp2_Point( point, dx, dy, TRUE ); + + CUR.GS.loop--; + } + + Fail: + CUR.GS.loop = 1; + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* MSIRP[a]: Move Stack Indirect Relative Position */ + /* Opcode range: 0x3A-0x3B */ + /* Stack: f26.6 uint32 --> */ + /* */ + static void + Ins_MSIRP( INS_ARG ) + { + FT_UShort point; + FT_F26Dot6 distance; + + + point = (FT_UShort)args[0]; + + if ( BOUNDS( point, CUR.zp1.n_points ) || + BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + /* UNDOCUMENTED! The MS rasterizer does that with */ + /* twilight points (confirmed by Greg Hitchcock) */ + if ( CUR.GS.gep1 == 0 ) + { + CUR.zp1.org[point] = CUR.zp0.org[CUR.GS.rp0]; + CUR_Func_move_orig( &CUR.zp1, point, args[1] ); + CUR.zp1.cur[point] = CUR.zp1.org[point]; + } + + distance = CUR_Func_project( CUR.zp1.cur + point, + CUR.zp0.cur + CUR.GS.rp0 ); + + CUR_Func_move( &CUR.zp1, point, args[1] - distance ); + + CUR.GS.rp1 = CUR.GS.rp0; + CUR.GS.rp2 = point; + + if ( ( CUR.opcode & 1 ) != 0 ) + CUR.GS.rp0 = point; + } + + + /*************************************************************************/ + /* */ + /* MDAP[a]: Move Direct Absolute Point */ + /* Opcode range: 0x2E-0x2F */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_MDAP( INS_ARG ) + { + FT_UShort point; + FT_F26Dot6 cur_dist, + distance; + + + point = (FT_UShort)args[0]; + + if ( BOUNDS( point, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + if ( ( CUR.opcode & 1 ) != 0 ) + { + cur_dist = CUR_fast_project( &CUR.zp0.cur[point] ); + distance = CUR_Func_round( cur_dist, + CUR.tt_metrics.compensations[0] ) - cur_dist; + } + else + distance = 0; + + CUR_Func_move( &CUR.zp0, point, distance ); + + CUR.GS.rp0 = point; + CUR.GS.rp1 = point; + } + + + /*************************************************************************/ + /* */ + /* MIAP[a]: Move Indirect Absolute Point */ + /* Opcode range: 0x3E-0x3F */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_MIAP( INS_ARG ) + { + FT_ULong cvtEntry; + FT_UShort point; + FT_F26Dot6 distance, + org_dist; + + + cvtEntry = (FT_ULong)args[1]; + point = (FT_UShort)args[0]; + + if ( BOUNDS( point, CUR.zp0.n_points ) || + BOUNDSL( cvtEntry, CUR.cvtSize ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + /* UNDOCUMENTED! */ + /* */ + /* The behaviour of an MIAP instruction is quite different when used */ + /* in the twilight zone. */ + /* */ + /* First, no control value cut-in test is performed as it would fail */ + /* anyway. Second, the original point, i.e. (org_x,org_y) of */ + /* zp0.point, is set to the absolute, unrounded distance found in the */ + /* CVT. */ + /* */ + /* This is used in the CVT programs of the Microsoft fonts Arial, */ + /* Times, etc., in order to re-adjust some key font heights. It */ + /* allows the use of the IP instruction in the twilight zone, which */ + /* otherwise would be invalid according to the specification. */ + /* */ + /* We implement it with a special sequence for the twilight zone. */ + /* This is a bad hack, but it seems to work. */ + /* */ + /* Confirmed by Greg Hitchcock. */ + + distance = CUR_Func_read_cvt( cvtEntry ); + + if ( CUR.GS.gep0 == 0 ) /* If in twilight zone */ + { + CUR.zp0.org[point].x = TT_MulFix14( (FT_UInt32)distance, + CUR.GS.freeVector.x ); + CUR.zp0.org[point].y = TT_MulFix14( (FT_UInt32)distance, + CUR.GS.freeVector.y ), + CUR.zp0.cur[point] = CUR.zp0.org[point]; + } + + org_dist = CUR_fast_project( &CUR.zp0.cur[point] ); + + if ( ( CUR.opcode & 1 ) != 0 ) /* rounding and control cutin flag */ + { + if ( FT_ABS( distance - org_dist ) > CUR.GS.control_value_cutin ) + distance = org_dist; + + distance = CUR_Func_round( distance, CUR.tt_metrics.compensations[0] ); + } + + CUR_Func_move( &CUR.zp0, point, distance - org_dist ); + + Fail: + CUR.GS.rp0 = point; + CUR.GS.rp1 = point; + } + + + /*************************************************************************/ + /* */ + /* MDRP[abcde]: Move Direct Relative Point */ + /* Opcode range: 0xC0-0xDF */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_MDRP( INS_ARG ) + { + FT_UShort point; + FT_F26Dot6 org_dist, distance; + + + point = (FT_UShort)args[0]; + + if ( BOUNDS( point, CUR.zp1.n_points ) || + BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + /* XXX: Is there some undocumented feature while in the */ + /* twilight zone? */ + + /* XXX: UNDOCUMENTED: twilight zone special case */ + + if ( CUR.GS.gep0 == 0 || CUR.GS.gep1 == 0 ) + { + FT_Vector* vec1 = &CUR.zp1.org[point]; + FT_Vector* vec2 = &CUR.zp0.org[CUR.GS.rp0]; + + + org_dist = CUR_Func_dualproj( vec1, vec2 ); + } + else + { + FT_Vector* vec1 = &CUR.zp1.orus[point]; + FT_Vector* vec2 = &CUR.zp0.orus[CUR.GS.rp0]; + + + if ( CUR.metrics.x_scale == CUR.metrics.y_scale ) + { + /* this should be faster */ + org_dist = CUR_Func_dualproj( vec1, vec2 ); + org_dist = TT_MULFIX( org_dist, CUR.metrics.x_scale ); + } + else + { + FT_Vector vec; + + + vec.x = TT_MULFIX( vec1->x - vec2->x, CUR.metrics.x_scale ); + vec.y = TT_MULFIX( vec1->y - vec2->y, CUR.metrics.y_scale ); + + org_dist = CUR_fast_dualproj( &vec ); + } + } + + /* single width cut-in test */ + + if ( FT_ABS( org_dist - CUR.GS.single_width_value ) < + CUR.GS.single_width_cutin ) + { + if ( org_dist >= 0 ) + org_dist = CUR.GS.single_width_value; + else + org_dist = -CUR.GS.single_width_value; + } + + /* round flag */ + + if ( ( CUR.opcode & 4 ) != 0 ) + distance = CUR_Func_round( + org_dist, + CUR.tt_metrics.compensations[CUR.opcode & 3] ); + else + distance = ROUND_None( + org_dist, + CUR.tt_metrics.compensations[CUR.opcode & 3] ); + + /* minimum distance flag */ + + if ( ( CUR.opcode & 8 ) != 0 ) + { + if ( org_dist >= 0 ) + { + if ( distance < CUR.GS.minimum_distance ) + distance = CUR.GS.minimum_distance; + } + else + { + if ( distance > -CUR.GS.minimum_distance ) + distance = -CUR.GS.minimum_distance; + } + } + + /* now move the point */ + + org_dist = CUR_Func_project( CUR.zp1.cur + point, + CUR.zp0.cur + CUR.GS.rp0 ); + + CUR_Func_move( &CUR.zp1, point, distance - org_dist ); + + Fail: + CUR.GS.rp1 = CUR.GS.rp0; + CUR.GS.rp2 = point; + + if ( ( CUR.opcode & 16 ) != 0 ) + CUR.GS.rp0 = point; + } + + + /*************************************************************************/ + /* */ + /* MIRP[abcde]: Move Indirect Relative Point */ + /* Opcode range: 0xE0-0xFF */ + /* Stack: int32? uint32 --> */ + /* */ + static void + Ins_MIRP( INS_ARG ) + { + FT_UShort point; + FT_ULong cvtEntry; + + FT_F26Dot6 cvt_dist, + distance, + cur_dist, + org_dist; + + + point = (FT_UShort)args[0]; + cvtEntry = (FT_ULong)( args[1] + 1 ); + + /* XXX: UNDOCUMENTED! cvt[-1] = 0 always */ + + if ( BOUNDS( point, CUR.zp1.n_points ) || + BOUNDSL( cvtEntry, CUR.cvtSize + 1 ) || + BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + if ( !cvtEntry ) + cvt_dist = 0; + else + cvt_dist = CUR_Func_read_cvt( cvtEntry - 1 ); + + /* single width test */ + + if ( FT_ABS( cvt_dist - CUR.GS.single_width_value ) < + CUR.GS.single_width_cutin ) + { + if ( cvt_dist >= 0 ) + cvt_dist = CUR.GS.single_width_value; + else + cvt_dist = -CUR.GS.single_width_value; + } + + /* UNDOCUMENTED! The MS rasterizer does that with */ + /* twilight points (confirmed by Greg Hitchcock) */ + if ( CUR.GS.gep1 == 0 ) + { + CUR.zp1.org[point].x = CUR.zp0.org[CUR.GS.rp0].x + + TT_MulFix14( (FT_UInt32)cvt_dist, + CUR.GS.freeVector.x ); + CUR.zp1.org[point].y = CUR.zp0.org[CUR.GS.rp0].y + + TT_MulFix14( (FT_UInt32)cvt_dist, + CUR.GS.freeVector.y ); + CUR.zp1.cur[point] = CUR.zp1.org[point]; + } + + org_dist = CUR_Func_dualproj( &CUR.zp1.org[point], + &CUR.zp0.org[CUR.GS.rp0] ); + cur_dist = CUR_Func_project ( &CUR.zp1.cur[point], + &CUR.zp0.cur[CUR.GS.rp0] ); + + /* auto-flip test */ + + if ( CUR.GS.auto_flip ) + { + if ( ( org_dist ^ cvt_dist ) < 0 ) + cvt_dist = -cvt_dist; + } + + /* control value cutin and round */ + + if ( ( CUR.opcode & 4 ) != 0 ) + { + /* XXX: UNDOCUMENTED! Only perform cut-in test when both points */ + /* refer to the same zone. */ + + if ( CUR.GS.gep0 == CUR.GS.gep1 ) + { + /* XXX: According to Greg Hitchcock, the following wording is */ + /* the right one: */ + /* */ + /* When the absolute difference between the value in */ + /* the table [CVT] and the measurement directly from */ + /* the outline is _greater_ than the cut_in value, the */ + /* outline measurement is used. */ + /* */ + /* This is from `instgly.doc'. The description in */ + /* `ttinst2.doc', version 1.66, is thus incorrect since */ + /* it implies `>=' instead of `>'. */ + + if ( FT_ABS( cvt_dist - org_dist ) > CUR.GS.control_value_cutin ) + cvt_dist = org_dist; + } + + distance = CUR_Func_round( + cvt_dist, + CUR.tt_metrics.compensations[CUR.opcode & 3] ); + } + else + distance = ROUND_None( + cvt_dist, + CUR.tt_metrics.compensations[CUR.opcode & 3] ); + + /* minimum distance test */ + + if ( ( CUR.opcode & 8 ) != 0 ) + { + if ( org_dist >= 0 ) + { + if ( distance < CUR.GS.minimum_distance ) + distance = CUR.GS.minimum_distance; + } + else + { + if ( distance > -CUR.GS.minimum_distance ) + distance = -CUR.GS.minimum_distance; + } + } + + CUR_Func_move( &CUR.zp1, point, distance - cur_dist ); + + Fail: + CUR.GS.rp1 = CUR.GS.rp0; + + if ( ( CUR.opcode & 16 ) != 0 ) + CUR.GS.rp0 = point; + + CUR.GS.rp2 = point; + } + + + /*************************************************************************/ + /* */ + /* ALIGNRP[]: ALIGN Relative Point */ + /* Opcode range: 0x3C */ + /* Stack: uint32 uint32... --> */ + /* */ + static void + Ins_ALIGNRP( INS_ARG ) + { + FT_UShort point; + FT_F26Dot6 distance; + + FT_UNUSED_ARG; + + + if ( CUR.top < CUR.GS.loop || + BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + while ( CUR.GS.loop > 0 ) + { + CUR.args--; + + point = (FT_UShort)CUR.stack[CUR.args]; + + if ( BOUNDS( point, CUR.zp1.n_points ) ) + { + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Invalid_Reference; + return; + } + } + else + { + distance = CUR_Func_project( CUR.zp1.cur + point, + CUR.zp0.cur + CUR.GS.rp0 ); + + CUR_Func_move( &CUR.zp1, point, -distance ); + } + + CUR.GS.loop--; + } + + Fail: + CUR.GS.loop = 1; + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* ISECT[]: moves point to InterSECTion */ + /* Opcode range: 0x0F */ + /* Stack: 5 * uint32 --> */ + /* */ + static void + Ins_ISECT( INS_ARG ) + { + FT_UShort point, + a0, a1, + b0, b1; + + FT_F26Dot6 discriminant; + + FT_F26Dot6 dx, dy, + dax, day, + dbx, dby; + + FT_F26Dot6 val; + + FT_Vector R; + + + point = (FT_UShort)args[0]; + + a0 = (FT_UShort)args[1]; + a1 = (FT_UShort)args[2]; + b0 = (FT_UShort)args[3]; + b1 = (FT_UShort)args[4]; + + if ( BOUNDS( b0, CUR.zp0.n_points ) || + BOUNDS( b1, CUR.zp0.n_points ) || + BOUNDS( a0, CUR.zp1.n_points ) || + BOUNDS( a1, CUR.zp1.n_points ) || + BOUNDS( point, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + dbx = CUR.zp0.cur[b1].x - CUR.zp0.cur[b0].x; + dby = CUR.zp0.cur[b1].y - CUR.zp0.cur[b0].y; + + dax = CUR.zp1.cur[a1].x - CUR.zp1.cur[a0].x; + day = CUR.zp1.cur[a1].y - CUR.zp1.cur[a0].y; + + dx = CUR.zp0.cur[b0].x - CUR.zp1.cur[a0].x; + dy = CUR.zp0.cur[b0].y - CUR.zp1.cur[a0].y; + + CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_BOTH; + + discriminant = TT_MULDIV( dax, -dby, 0x40 ) + + TT_MULDIV( day, dbx, 0x40 ); + + if ( FT_ABS( discriminant ) >= 0x40 ) + { + val = TT_MULDIV( dx, -dby, 0x40 ) + TT_MULDIV( dy, dbx, 0x40 ); + + R.x = TT_MULDIV( val, dax, discriminant ); + R.y = TT_MULDIV( val, day, discriminant ); + + CUR.zp2.cur[point].x = CUR.zp1.cur[a0].x + R.x; + CUR.zp2.cur[point].y = CUR.zp1.cur[a0].y + R.y; + } + else + { + /* else, take the middle of the middles of A and B */ + + CUR.zp2.cur[point].x = ( CUR.zp1.cur[a0].x + + CUR.zp1.cur[a1].x + + CUR.zp0.cur[b0].x + + CUR.zp0.cur[b1].x ) / 4; + CUR.zp2.cur[point].y = ( CUR.zp1.cur[a0].y + + CUR.zp1.cur[a1].y + + CUR.zp0.cur[b0].y + + CUR.zp0.cur[b1].y ) / 4; + } + } + + + /*************************************************************************/ + /* */ + /* ALIGNPTS[]: ALIGN PoinTS */ + /* Opcode range: 0x27 */ + /* Stack: uint32 uint32 --> */ + /* */ + static void + Ins_ALIGNPTS( INS_ARG ) + { + FT_UShort p1, p2; + FT_F26Dot6 distance; + + + p1 = (FT_UShort)args[0]; + p2 = (FT_UShort)args[1]; + + if ( BOUNDS( p1, CUR.zp1.n_points ) || + BOUNDS( p2, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + distance = CUR_Func_project( CUR.zp0.cur + p2, + CUR.zp1.cur + p1 ) / 2; + + CUR_Func_move( &CUR.zp1, p1, distance ); + CUR_Func_move( &CUR.zp0, p2, -distance ); + } + + + /*************************************************************************/ + /* */ + /* IP[]: Interpolate Point */ + /* Opcode range: 0x39 */ + /* Stack: uint32... --> */ + /* */ + + /* SOMETIMES, DUMBER CODE IS BETTER CODE */ + + static void + Ins_IP( INS_ARG ) + { + FT_F26Dot6 old_range, cur_range; + FT_Vector* orus_base; + FT_Vector* cur_base; + FT_Int twilight; + + FT_UNUSED_ARG; + + + if ( CUR.top < CUR.GS.loop ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + /* + * We need to deal in a special way with the twilight zone. + * Otherwise, by definition, the value of CUR.twilight.orus[n] is (0,0), + * for every n. + */ + twilight = CUR.GS.gep0 == 0 || CUR.GS.gep1 == 0 || CUR.GS.gep2 == 0; + + if ( BOUNDS( CUR.GS.rp1, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + goto Fail; + } + + if ( twilight ) + orus_base = &CUR.zp0.org[CUR.GS.rp1]; + else + orus_base = &CUR.zp0.orus[CUR.GS.rp1]; + + cur_base = &CUR.zp0.cur[CUR.GS.rp1]; + + /* XXX: There are some glyphs in some braindead but popular */ + /* fonts out there (e.g. [aeu]grave in monotype.ttf) */ + /* calling IP[] with bad values of rp[12]. */ + /* Do something sane when this odd thing happens. */ + if ( BOUNDS( CUR.GS.rp1, CUR.zp0.n_points ) || + BOUNDS( CUR.GS.rp2, CUR.zp1.n_points ) ) + { + old_range = 0; + cur_range = 0; + } + else + { + if ( twilight ) + old_range = CUR_Func_dualproj( &CUR.zp1.org[CUR.GS.rp2], + orus_base ); + else if ( CUR.metrics.x_scale == CUR.metrics.y_scale ) + old_range = CUR_Func_dualproj( &CUR.zp1.orus[CUR.GS.rp2], + orus_base ); + else + { + FT_Vector vec; + + + vec.x = TT_MULFIX( CUR.zp1.orus[CUR.GS.rp2].x - orus_base->x, + CUR.metrics.x_scale ); + vec.y = TT_MULFIX( CUR.zp1.orus[CUR.GS.rp2].y - orus_base->y, + CUR.metrics.y_scale ); + + old_range = CUR_fast_dualproj( &vec ); + } + + cur_range = CUR_Func_project ( &CUR.zp1.cur[CUR.GS.rp2], cur_base ); + } + + for ( ; CUR.GS.loop > 0; --CUR.GS.loop ) + { + FT_UInt point = (FT_UInt)CUR.stack[--CUR.args]; + FT_F26Dot6 org_dist, cur_dist, new_dist; + + + /* check point bounds */ + if ( BOUNDS( point, CUR.zp2.n_points ) ) + { + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Invalid_Reference; + return; + } + continue; + } + + if ( twilight ) + org_dist = CUR_Func_dualproj( &CUR.zp2.org[point], orus_base ); + else if ( CUR.metrics.x_scale == CUR.metrics.y_scale ) + org_dist = CUR_Func_dualproj( &CUR.zp2.orus[point], orus_base ); + else + { + FT_Vector vec; + + + vec.x = TT_MULFIX( CUR.zp2.orus[point].x - orus_base->x, + CUR.metrics.x_scale ); + vec.y = TT_MULFIX( CUR.zp2.orus[point].y - orus_base->y, + CUR.metrics.y_scale ); + + org_dist = CUR_fast_dualproj( &vec ); + } + + cur_dist = CUR_Func_project ( &CUR.zp2.cur[point], cur_base ); + + if ( org_dist ) + new_dist = ( old_range != 0 ) + ? TT_MULDIV( org_dist, cur_range, old_range ) + : cur_dist; + else + new_dist = 0; + + CUR_Func_move( &CUR.zp2, (FT_UShort)point, new_dist - cur_dist ); + } + + Fail: + CUR.GS.loop = 1; + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* UTP[a]: UnTouch Point */ + /* Opcode range: 0x29 */ + /* Stack: uint32 --> */ + /* */ + static void + Ins_UTP( INS_ARG ) + { + FT_UShort point; + FT_Byte mask; + + + point = (FT_UShort)args[0]; + + if ( BOUNDS( point, CUR.zp0.n_points ) ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + return; + } + + mask = 0xFF; + + if ( CUR.GS.freeVector.x != 0 ) + mask &= ~FT_CURVE_TAG_TOUCH_X; + + if ( CUR.GS.freeVector.y != 0 ) + mask &= ~FT_CURVE_TAG_TOUCH_Y; + + CUR.zp0.tags[point] &= mask; + } + + + /* Local variables for Ins_IUP: */ + typedef struct IUP_WorkerRec_ + { + FT_Vector* orgs; /* original and current coordinate */ + FT_Vector* curs; /* arrays */ + FT_Vector* orus; + FT_UInt max_points; + + } IUP_WorkerRec, *IUP_Worker; + + + static void + _iup_worker_shift( IUP_Worker worker, + FT_UInt p1, + FT_UInt p2, + FT_UInt p ) + { + FT_UInt i; + FT_F26Dot6 dx; + + + dx = worker->curs[p].x - worker->orgs[p].x; + if ( dx != 0 ) + { + for ( i = p1; i < p; i++ ) + worker->curs[i].x += dx; + + for ( i = p + 1; i <= p2; i++ ) + worker->curs[i].x += dx; + } + } + + + static void + _iup_worker_interpolate( IUP_Worker worker, + FT_UInt p1, + FT_UInt p2, + FT_UInt ref1, + FT_UInt ref2 ) + { + FT_UInt i; + FT_F26Dot6 orus1, orus2, org1, org2, delta1, delta2; + + + if ( p1 > p2 ) + return; + + if ( BOUNDS( ref1, worker->max_points ) || + BOUNDS( ref2, worker->max_points ) ) + return; + + orus1 = worker->orus[ref1].x; + orus2 = worker->orus[ref2].x; + + if ( orus1 > orus2 ) + { + FT_F26Dot6 tmp_o; + FT_UInt tmp_r; + + + tmp_o = orus1; + orus1 = orus2; + orus2 = tmp_o; + + tmp_r = ref1; + ref1 = ref2; + ref2 = tmp_r; + } + + org1 = worker->orgs[ref1].x; + org2 = worker->orgs[ref2].x; + delta1 = worker->curs[ref1].x - org1; + delta2 = worker->curs[ref2].x - org2; + + if ( orus1 == orus2 ) + { + /* simple shift of untouched points */ + for ( i = p1; i <= p2; i++ ) + { + FT_F26Dot6 x = worker->orgs[i].x; + + + if ( x <= org1 ) + x += delta1; + else + x += delta2; + + worker->curs[i].x = x; + } + } + else + { + FT_Fixed scale = 0; + FT_Bool scale_valid = 0; + + + /* interpolation */ + for ( i = p1; i <= p2; i++ ) + { + FT_F26Dot6 x = worker->orgs[i].x; + + + if ( x <= org1 ) + x += delta1; + + else if ( x >= org2 ) + x += delta2; + + else + { + if ( !scale_valid ) + { + scale_valid = 1; + scale = TT_MULDIV( org2 + delta2 - ( org1 + delta1 ), + 0x10000L, orus2 - orus1 ); + } + + x = ( org1 + delta1 ) + + TT_MULFIX( worker->orus[i].x - orus1, scale ); + } + worker->curs[i].x = x; + } + } + } + + + /*************************************************************************/ + /* */ + /* IUP[a]: Interpolate Untouched Points */ + /* Opcode range: 0x30-0x31 */ + /* Stack: --> */ + /* */ + static void + Ins_IUP( INS_ARG ) + { + IUP_WorkerRec V; + FT_Byte mask; + + FT_UInt first_point; /* first point of contour */ + FT_UInt end_point; /* end point (last+1) of contour */ + + FT_UInt first_touched; /* first touched point in contour */ + FT_UInt cur_touched; /* current touched point in contour */ + + FT_UInt point; /* current point */ + FT_Short contour; /* current contour */ + + FT_UNUSED_ARG; + + + /* ignore empty outlines */ + if ( CUR.pts.n_contours == 0 ) + return; + + if ( CUR.opcode & 1 ) + { + mask = FT_CURVE_TAG_TOUCH_X; + V.orgs = CUR.pts.org; + V.curs = CUR.pts.cur; + V.orus = CUR.pts.orus; + } + else + { + mask = FT_CURVE_TAG_TOUCH_Y; + V.orgs = (FT_Vector*)( (FT_Pos*)CUR.pts.org + 1 ); + V.curs = (FT_Vector*)( (FT_Pos*)CUR.pts.cur + 1 ); + V.orus = (FT_Vector*)( (FT_Pos*)CUR.pts.orus + 1 ); + } + V.max_points = CUR.pts.n_points; + + contour = 0; + point = 0; + + do + { + end_point = CUR.pts.contours[contour] - CUR.pts.first_point; + first_point = point; + + if ( BOUNDS ( end_point, CUR.pts.n_points ) ) + end_point = CUR.pts.n_points - 1; + + while ( point <= end_point && ( CUR.pts.tags[point] & mask ) == 0 ) + point++; + + if ( point <= end_point ) + { + first_touched = point; + cur_touched = point; + + point++; + + while ( point <= end_point ) + { + if ( ( CUR.pts.tags[point] & mask ) != 0 ) + { + _iup_worker_interpolate( &V, + cur_touched + 1, + point - 1, + cur_touched, + point ); + cur_touched = point; + } + + point++; + } + + if ( cur_touched == first_touched ) + _iup_worker_shift( &V, first_point, end_point, cur_touched ); + else + { + _iup_worker_interpolate( &V, + (FT_UShort)( cur_touched + 1 ), + end_point, + cur_touched, + first_touched ); + + if ( first_touched > 0 ) + _iup_worker_interpolate( &V, + first_point, + first_touched - 1, + cur_touched, + first_touched ); + } + } + contour++; + } while ( contour < CUR.pts.n_contours ); + } + + + /*************************************************************************/ + /* */ + /* DELTAPn[]: DELTA exceptions P1, P2, P3 */ + /* Opcode range: 0x5D,0x71,0x72 */ + /* Stack: uint32 (2 * uint32)... --> */ + /* */ + static void + Ins_DELTAP( INS_ARG ) + { + FT_ULong k, nump; + FT_UShort A; + FT_ULong C; + FT_Long B; + + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + /* Delta hinting is covered by US Patent 5159668. */ + if ( CUR.face->unpatented_hinting ) + { + FT_Long n = args[0] * 2; + + + if ( CUR.args < n ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Too_Few_Arguments; + n = CUR.args; + } + + CUR.args -= n; + CUR.new_top = CUR.args; + return; + } +#endif + + nump = (FT_ULong)args[0]; /* some points theoretically may occur more + than once, thus UShort isn't enough */ + + for ( k = 1; k <= nump; k++ ) + { + if ( CUR.args < 2 ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Too_Few_Arguments; + CUR.args = 0; + goto Fail; + } + + CUR.args -= 2; + + A = (FT_UShort)CUR.stack[CUR.args + 1]; + B = CUR.stack[CUR.args]; + + /* XXX: Because some popular fonts contain some invalid DeltaP */ + /* instructions, we simply ignore them when the stacked */ + /* point reference is off limit, rather than returning an */ + /* error. As a delta instruction doesn't change a glyph */ + /* in great ways, this shouldn't be a problem. */ + + if ( !BOUNDS( A, CUR.zp0.n_points ) ) + { + C = ( (FT_ULong)B & 0xF0 ) >> 4; + + switch ( CUR.opcode ) + { + case 0x5D: + break; + + case 0x71: + C += 16; + break; + + case 0x72: + C += 32; + break; + } + + C += CUR.GS.delta_base; + + if ( CURRENT_Ppem() == (FT_Long)C ) + { + B = ( (FT_ULong)B & 0xF ) - 8; + if ( B >= 0 ) + B++; + B = B * 64 / ( 1L << CUR.GS.delta_shift ); + + CUR_Func_move( &CUR.zp0, A, B ); + } + } + else + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Invalid_Reference; + } + + Fail: + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* DELTACn[]: DELTA exceptions C1, C2, C3 */ + /* Opcode range: 0x73,0x74,0x75 */ + /* Stack: uint32 (2 * uint32)... --> */ + /* */ + static void + Ins_DELTAC( INS_ARG ) + { + FT_ULong nump, k; + FT_ULong A, C; + FT_Long B; + + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + /* Delta hinting is covered by US Patent 5159668. */ + if ( CUR.face->unpatented_hinting ) + { + FT_Long n = args[0] * 2; + + + if ( CUR.args < n ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Too_Few_Arguments; + n = CUR.args; + } + + CUR.args -= n; + CUR.new_top = CUR.args; + return; + } +#endif + + nump = (FT_ULong)args[0]; + + for ( k = 1; k <= nump; k++ ) + { + if ( CUR.args < 2 ) + { + if ( CUR.pedantic_hinting ) + CUR.error = TT_Err_Too_Few_Arguments; + CUR.args = 0; + goto Fail; + } + + CUR.args -= 2; + + A = (FT_ULong)CUR.stack[CUR.args + 1]; + B = CUR.stack[CUR.args]; + + if ( BOUNDSL( A, CUR.cvtSize ) ) + { + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Invalid_Reference; + return; + } + } + else + { + C = ( (FT_ULong)B & 0xF0 ) >> 4; + + switch ( CUR.opcode ) + { + case 0x73: + break; + + case 0x74: + C += 16; + break; + + case 0x75: + C += 32; + break; + } + + C += CUR.GS.delta_base; + + if ( CURRENT_Ppem() == (FT_Long)C ) + { + B = ( (FT_ULong)B & 0xF ) - 8; + if ( B >= 0 ) + B++; + B = B * 64 / ( 1L << CUR.GS.delta_shift ); + + CUR_Func_move_cvt( A, B ); + } + } + } + + Fail: + CUR.new_top = CUR.args; + } + + + /*************************************************************************/ + /* */ + /* MISC. INSTRUCTIONS */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* GETINFO[]: GET INFOrmation */ + /* Opcode range: 0x88 */ + /* Stack: uint32 --> uint32 */ + /* */ + static void + Ins_GETINFO( INS_ARG ) + { + FT_Long K; + + + K = 0; + + /* We return MS rasterizer version 1.7 for the font scaler. */ + if ( ( args[0] & 1 ) != 0 ) + K = 35; + + /* Has the glyph been rotated? */ + if ( ( args[0] & 2 ) != 0 && CUR.tt_metrics.rotated ) + K |= 0x80; + + /* Has the glyph been stretched? */ + if ( ( args[0] & 4 ) != 0 && CUR.tt_metrics.stretched ) + K |= 1 << 8; + + /* Are we hinting for grayscale? */ + if ( ( args[0] & 32 ) != 0 && CUR.grayscale ) + K |= 1 << 12; + + args[0] = K; + } + + + static void + Ins_UNKNOWN( INS_ARG ) + { + TT_DefRecord* def = CUR.IDefs; + TT_DefRecord* limit = def + CUR.numIDefs; + + FT_UNUSED_ARG; + + + for ( ; def < limit; def++ ) + { + if ( (FT_Byte)def->opc == CUR.opcode && def->active ) + { + TT_CallRec* call; + + + if ( CUR.callTop >= CUR.callSize ) + { + CUR.error = TT_Err_Stack_Overflow; + return; + } + + call = CUR.callStack + CUR.callTop++; + + call->Caller_Range = CUR.curRange; + call->Caller_IP = CUR.IP + 1; + call->Cur_Count = 1; + call->Cur_Restart = def->start; + call->Cur_End = def->end; + + INS_Goto_CodeRange( def->range, def->start ); + + CUR.step_ins = FALSE; + return; + } + } + + CUR.error = TT_Err_Invalid_Opcode; + } + + +#ifndef TT_CONFIG_OPTION_INTERPRETER_SWITCH + + + static + TInstruction_Function Instruct_Dispatch[256] = + { + /* Opcodes are gathered in groups of 16. */ + /* Please keep the spaces as they are. */ + + /* SVTCA y */ Ins_SVTCA, + /* SVTCA x */ Ins_SVTCA, + /* SPvTCA y */ Ins_SPVTCA, + /* SPvTCA x */ Ins_SPVTCA, + /* SFvTCA y */ Ins_SFVTCA, + /* SFvTCA x */ Ins_SFVTCA, + /* SPvTL // */ Ins_SPVTL, + /* SPvTL + */ Ins_SPVTL, + /* SFvTL // */ Ins_SFVTL, + /* SFvTL + */ Ins_SFVTL, + /* SPvFS */ Ins_SPVFS, + /* SFvFS */ Ins_SFVFS, + /* GPV */ Ins_GPV, + /* GFV */ Ins_GFV, + /* SFvTPv */ Ins_SFVTPV, + /* ISECT */ Ins_ISECT, + + /* SRP0 */ Ins_SRP0, + /* SRP1 */ Ins_SRP1, + /* SRP2 */ Ins_SRP2, + /* SZP0 */ Ins_SZP0, + /* SZP1 */ Ins_SZP1, + /* SZP2 */ Ins_SZP2, + /* SZPS */ Ins_SZPS, + /* SLOOP */ Ins_SLOOP, + /* RTG */ Ins_RTG, + /* RTHG */ Ins_RTHG, + /* SMD */ Ins_SMD, + /* ELSE */ Ins_ELSE, + /* JMPR */ Ins_JMPR, + /* SCvTCi */ Ins_SCVTCI, + /* SSwCi */ Ins_SSWCI, + /* SSW */ Ins_SSW, + + /* DUP */ Ins_DUP, + /* POP */ Ins_POP, + /* CLEAR */ Ins_CLEAR, + /* SWAP */ Ins_SWAP, + /* DEPTH */ Ins_DEPTH, + /* CINDEX */ Ins_CINDEX, + /* MINDEX */ Ins_MINDEX, + /* AlignPTS */ Ins_ALIGNPTS, + /* INS_0x28 */ Ins_UNKNOWN, + /* UTP */ Ins_UTP, + /* LOOPCALL */ Ins_LOOPCALL, + /* CALL */ Ins_CALL, + /* FDEF */ Ins_FDEF, + /* ENDF */ Ins_ENDF, + /* MDAP[0] */ Ins_MDAP, + /* MDAP[1] */ Ins_MDAP, + + /* IUP[0] */ Ins_IUP, + /* IUP[1] */ Ins_IUP, + /* SHP[0] */ Ins_SHP, + /* SHP[1] */ Ins_SHP, + /* SHC[0] */ Ins_SHC, + /* SHC[1] */ Ins_SHC, + /* SHZ[0] */ Ins_SHZ, + /* SHZ[1] */ Ins_SHZ, + /* SHPIX */ Ins_SHPIX, + /* IP */ Ins_IP, + /* MSIRP[0] */ Ins_MSIRP, + /* MSIRP[1] */ Ins_MSIRP, + /* AlignRP */ Ins_ALIGNRP, + /* RTDG */ Ins_RTDG, + /* MIAP[0] */ Ins_MIAP, + /* MIAP[1] */ Ins_MIAP, + + /* NPushB */ Ins_NPUSHB, + /* NPushW */ Ins_NPUSHW, + /* WS */ Ins_WS, + /* RS */ Ins_RS, + /* WCvtP */ Ins_WCVTP, + /* RCvt */ Ins_RCVT, + /* GC[0] */ Ins_GC, + /* GC[1] */ Ins_GC, + /* SCFS */ Ins_SCFS, + /* MD[0] */ Ins_MD, + /* MD[1] */ Ins_MD, + /* MPPEM */ Ins_MPPEM, + /* MPS */ Ins_MPS, + /* FlipON */ Ins_FLIPON, + /* FlipOFF */ Ins_FLIPOFF, + /* DEBUG */ Ins_DEBUG, + + /* LT */ Ins_LT, + /* LTEQ */ Ins_LTEQ, + /* GT */ Ins_GT, + /* GTEQ */ Ins_GTEQ, + /* EQ */ Ins_EQ, + /* NEQ */ Ins_NEQ, + /* ODD */ Ins_ODD, + /* EVEN */ Ins_EVEN, + /* IF */ Ins_IF, + /* EIF */ Ins_EIF, + /* AND */ Ins_AND, + /* OR */ Ins_OR, + /* NOT */ Ins_NOT, + /* DeltaP1 */ Ins_DELTAP, + /* SDB */ Ins_SDB, + /* SDS */ Ins_SDS, + + /* ADD */ Ins_ADD, + /* SUB */ Ins_SUB, + /* DIV */ Ins_DIV, + /* MUL */ Ins_MUL, + /* ABS */ Ins_ABS, + /* NEG */ Ins_NEG, + /* FLOOR */ Ins_FLOOR, + /* CEILING */ Ins_CEILING, + /* ROUND[0] */ Ins_ROUND, + /* ROUND[1] */ Ins_ROUND, + /* ROUND[2] */ Ins_ROUND, + /* ROUND[3] */ Ins_ROUND, + /* NROUND[0] */ Ins_NROUND, + /* NROUND[1] */ Ins_NROUND, + /* NROUND[2] */ Ins_NROUND, + /* NROUND[3] */ Ins_NROUND, + + /* WCvtF */ Ins_WCVTF, + /* DeltaP2 */ Ins_DELTAP, + /* DeltaP3 */ Ins_DELTAP, + /* DeltaCn[0] */ Ins_DELTAC, + /* DeltaCn[1] */ Ins_DELTAC, + /* DeltaCn[2] */ Ins_DELTAC, + /* SROUND */ Ins_SROUND, + /* S45Round */ Ins_S45ROUND, + /* JROT */ Ins_JROT, + /* JROF */ Ins_JROF, + /* ROFF */ Ins_ROFF, + /* INS_0x7B */ Ins_UNKNOWN, + /* RUTG */ Ins_RUTG, + /* RDTG */ Ins_RDTG, + /* SANGW */ Ins_SANGW, + /* AA */ Ins_AA, + + /* FlipPT */ Ins_FLIPPT, + /* FlipRgON */ Ins_FLIPRGON, + /* FlipRgOFF */ Ins_FLIPRGOFF, + /* INS_0x83 */ Ins_UNKNOWN, + /* INS_0x84 */ Ins_UNKNOWN, + /* ScanCTRL */ Ins_SCANCTRL, + /* SDPVTL[0] */ Ins_SDPVTL, + /* SDPVTL[1] */ Ins_SDPVTL, + /* GetINFO */ Ins_GETINFO, + /* IDEF */ Ins_IDEF, + /* ROLL */ Ins_ROLL, + /* MAX */ Ins_MAX, + /* MIN */ Ins_MIN, + /* ScanTYPE */ Ins_SCANTYPE, + /* InstCTRL */ Ins_INSTCTRL, + /* INS_0x8F */ Ins_UNKNOWN, + + /* INS_0x90 */ Ins_UNKNOWN, + /* INS_0x91 */ Ins_UNKNOWN, + /* INS_0x92 */ Ins_UNKNOWN, + /* INS_0x93 */ Ins_UNKNOWN, + /* INS_0x94 */ Ins_UNKNOWN, + /* INS_0x95 */ Ins_UNKNOWN, + /* INS_0x96 */ Ins_UNKNOWN, + /* INS_0x97 */ Ins_UNKNOWN, + /* INS_0x98 */ Ins_UNKNOWN, + /* INS_0x99 */ Ins_UNKNOWN, + /* INS_0x9A */ Ins_UNKNOWN, + /* INS_0x9B */ Ins_UNKNOWN, + /* INS_0x9C */ Ins_UNKNOWN, + /* INS_0x9D */ Ins_UNKNOWN, + /* INS_0x9E */ Ins_UNKNOWN, + /* INS_0x9F */ Ins_UNKNOWN, + + /* INS_0xA0 */ Ins_UNKNOWN, + /* INS_0xA1 */ Ins_UNKNOWN, + /* INS_0xA2 */ Ins_UNKNOWN, + /* INS_0xA3 */ Ins_UNKNOWN, + /* INS_0xA4 */ Ins_UNKNOWN, + /* INS_0xA5 */ Ins_UNKNOWN, + /* INS_0xA6 */ Ins_UNKNOWN, + /* INS_0xA7 */ Ins_UNKNOWN, + /* INS_0xA8 */ Ins_UNKNOWN, + /* INS_0xA9 */ Ins_UNKNOWN, + /* INS_0xAA */ Ins_UNKNOWN, + /* INS_0xAB */ Ins_UNKNOWN, + /* INS_0xAC */ Ins_UNKNOWN, + /* INS_0xAD */ Ins_UNKNOWN, + /* INS_0xAE */ Ins_UNKNOWN, + /* INS_0xAF */ Ins_UNKNOWN, + + /* PushB[0] */ Ins_PUSHB, + /* PushB[1] */ Ins_PUSHB, + /* PushB[2] */ Ins_PUSHB, + /* PushB[3] */ Ins_PUSHB, + /* PushB[4] */ Ins_PUSHB, + /* PushB[5] */ Ins_PUSHB, + /* PushB[6] */ Ins_PUSHB, + /* PushB[7] */ Ins_PUSHB, + /* PushW[0] */ Ins_PUSHW, + /* PushW[1] */ Ins_PUSHW, + /* PushW[2] */ Ins_PUSHW, + /* PushW[3] */ Ins_PUSHW, + /* PushW[4] */ Ins_PUSHW, + /* PushW[5] */ Ins_PUSHW, + /* PushW[6] */ Ins_PUSHW, + /* PushW[7] */ Ins_PUSHW, + + /* MDRP[00] */ Ins_MDRP, + /* MDRP[01] */ Ins_MDRP, + /* MDRP[02] */ Ins_MDRP, + /* MDRP[03] */ Ins_MDRP, + /* MDRP[04] */ Ins_MDRP, + /* MDRP[05] */ Ins_MDRP, + /* MDRP[06] */ Ins_MDRP, + /* MDRP[07] */ Ins_MDRP, + /* MDRP[08] */ Ins_MDRP, + /* MDRP[09] */ Ins_MDRP, + /* MDRP[10] */ Ins_MDRP, + /* MDRP[11] */ Ins_MDRP, + /* MDRP[12] */ Ins_MDRP, + /* MDRP[13] */ Ins_MDRP, + /* MDRP[14] */ Ins_MDRP, + /* MDRP[15] */ Ins_MDRP, + + /* MDRP[16] */ Ins_MDRP, + /* MDRP[17] */ Ins_MDRP, + /* MDRP[18] */ Ins_MDRP, + /* MDRP[19] */ Ins_MDRP, + /* MDRP[20] */ Ins_MDRP, + /* MDRP[21] */ Ins_MDRP, + /* MDRP[22] */ Ins_MDRP, + /* MDRP[23] */ Ins_MDRP, + /* MDRP[24] */ Ins_MDRP, + /* MDRP[25] */ Ins_MDRP, + /* MDRP[26] */ Ins_MDRP, + /* MDRP[27] */ Ins_MDRP, + /* MDRP[28] */ Ins_MDRP, + /* MDRP[29] */ Ins_MDRP, + /* MDRP[30] */ Ins_MDRP, + /* MDRP[31] */ Ins_MDRP, + + /* MIRP[00] */ Ins_MIRP, + /* MIRP[01] */ Ins_MIRP, + /* MIRP[02] */ Ins_MIRP, + /* MIRP[03] */ Ins_MIRP, + /* MIRP[04] */ Ins_MIRP, + /* MIRP[05] */ Ins_MIRP, + /* MIRP[06] */ Ins_MIRP, + /* MIRP[07] */ Ins_MIRP, + /* MIRP[08] */ Ins_MIRP, + /* MIRP[09] */ Ins_MIRP, + /* MIRP[10] */ Ins_MIRP, + /* MIRP[11] */ Ins_MIRP, + /* MIRP[12] */ Ins_MIRP, + /* MIRP[13] */ Ins_MIRP, + /* MIRP[14] */ Ins_MIRP, + /* MIRP[15] */ Ins_MIRP, + + /* MIRP[16] */ Ins_MIRP, + /* MIRP[17] */ Ins_MIRP, + /* MIRP[18] */ Ins_MIRP, + /* MIRP[19] */ Ins_MIRP, + /* MIRP[20] */ Ins_MIRP, + /* MIRP[21] */ Ins_MIRP, + /* MIRP[22] */ Ins_MIRP, + /* MIRP[23] */ Ins_MIRP, + /* MIRP[24] */ Ins_MIRP, + /* MIRP[25] */ Ins_MIRP, + /* MIRP[26] */ Ins_MIRP, + /* MIRP[27] */ Ins_MIRP, + /* MIRP[28] */ Ins_MIRP, + /* MIRP[29] */ Ins_MIRP, + /* MIRP[30] */ Ins_MIRP, + /* MIRP[31] */ Ins_MIRP + }; + + +#endif /* !TT_CONFIG_OPTION_INTERPRETER_SWITCH */ + + + /*************************************************************************/ + /* */ + /* RUN */ + /* */ + /* This function executes a run of opcodes. It will exit in the */ + /* following cases: */ + /* */ + /* - Errors (in which case it returns FALSE). */ + /* */ + /* - Reaching the end of the main code range (returns TRUE). */ + /* Reaching the end of a code range within a function call is an */ + /* error. */ + /* */ + /* - After executing one single opcode, if the flag `Instruction_Trap' */ + /* is set to TRUE (returns TRUE). */ + /* */ + /* On exit with TRUE, test IP < CodeSize to know whether it comes from */ + /* an instruction trap or a normal termination. */ + /* */ + /* */ + /* Note: The documented DEBUG opcode pops a value from the stack. This */ + /* behaviour is unsupported; here a DEBUG opcode is always an */ + /* error. */ + /* */ + /* */ + /* THIS IS THE INTERPRETER'S MAIN LOOP. */ + /* */ + /* Instructions appear in the specification's order. */ + /* */ + /*************************************************************************/ + + + /* documentation is in ttinterp.h */ + + FT_EXPORT_DEF( FT_Error ) + TT_RunIns( TT_ExecContext exc ) + { + FT_Long ins_counter = 0; /* executed instructions counter */ + + +#ifdef TT_CONFIG_OPTION_STATIC_RASTER + cur = *exc; +#endif + + /* set CVT functions */ + CUR.tt_metrics.ratio = 0; + if ( CUR.metrics.x_ppem != CUR.metrics.y_ppem ) + { + /* non-square pixels, use the stretched routines */ + CUR.func_read_cvt = Read_CVT_Stretched; + CUR.func_write_cvt = Write_CVT_Stretched; + CUR.func_move_cvt = Move_CVT_Stretched; + } + else + { + /* square pixels, use normal routines */ + CUR.func_read_cvt = Read_CVT; + CUR.func_write_cvt = Write_CVT; + CUR.func_move_cvt = Move_CVT; + } + + COMPUTE_Funcs(); + COMPUTE_Round( (FT_Byte)exc->GS.round_state ); + + do + { + CUR.opcode = CUR.code[CUR.IP]; + + FT_TRACE7(( " " )); + FT_TRACE7(( opcode_name[CUR.opcode] )); + FT_TRACE7(( "\n" )); + + if ( ( CUR.length = opcode_length[CUR.opcode] ) < 0 ) + { + if ( CUR.IP + 1 >= CUR.codeSize ) + goto LErrorCodeOverflow_; + + CUR.length = 2 - CUR.length * CUR.code[CUR.IP + 1]; + } + + if ( CUR.IP + CUR.length > CUR.codeSize ) + goto LErrorCodeOverflow_; + + /* First, let's check for empty stack and overflow */ + CUR.args = CUR.top - ( Pop_Push_Count[CUR.opcode] >> 4 ); + + /* `args' is the top of the stack once arguments have been popped. */ + /* One can also interpret it as the index of the last argument. */ + if ( CUR.args < 0 ) + { + FT_UShort i; + + + if ( CUR.pedantic_hinting ) + { + CUR.error = TT_Err_Too_Few_Arguments; + goto LErrorLabel_; + } + + /* push zeroes onto the stack */ + for ( i = 0; i < Pop_Push_Count[CUR.opcode] >> 4; i++ ) + CUR.stack[i] = 0; + CUR.args = 0; + } + + CUR.new_top = CUR.args + ( Pop_Push_Count[CUR.opcode] & 15 ); + + /* `new_top' is the new top of the stack, after the instruction's */ + /* execution. `top' will be set to `new_top' after the `switch' */ + /* statement. */ + if ( CUR.new_top > CUR.stackSize ) + { + CUR.error = TT_Err_Stack_Overflow; + goto LErrorLabel_; + } + + CUR.step_ins = TRUE; + CUR.error = TT_Err_Ok; + +#ifdef TT_CONFIG_OPTION_INTERPRETER_SWITCH + + { + FT_Long* args = CUR.stack + CUR.args; + FT_Byte opcode = CUR.opcode; + + +#undef ARRAY_BOUND_ERROR +#define ARRAY_BOUND_ERROR goto Set_Invalid_Ref + + + switch ( opcode ) + { + case 0x00: /* SVTCA y */ + case 0x01: /* SVTCA x */ + case 0x02: /* SPvTCA y */ + case 0x03: /* SPvTCA x */ + case 0x04: /* SFvTCA y */ + case 0x05: /* SFvTCA x */ + { + FT_Short AA, BB; + + + AA = (FT_Short)( ( opcode & 1 ) << 14 ); + BB = (FT_Short)( AA ^ 0x4000 ); + + if ( opcode < 4 ) + { + CUR.GS.projVector.x = AA; + CUR.GS.projVector.y = BB; + + CUR.GS.dualVector.x = AA; + CUR.GS.dualVector.y = BB; + } + else + { + GUESS_VECTOR( projVector ); + } + + if ( ( opcode & 2 ) == 0 ) + { + CUR.GS.freeVector.x = AA; + CUR.GS.freeVector.y = BB; + } + else + { + GUESS_VECTOR( freeVector ); + } + + COMPUTE_Funcs(); + } + break; + + case 0x06: /* SPvTL // */ + case 0x07: /* SPvTL + */ + DO_SPVTL + break; + + case 0x08: /* SFvTL // */ + case 0x09: /* SFvTL + */ + DO_SFVTL + break; + + case 0x0A: /* SPvFS */ + DO_SPVFS + break; + + case 0x0B: /* SFvFS */ + DO_SFVFS + break; + + case 0x0C: /* GPV */ + DO_GPV + break; + + case 0x0D: /* GFV */ + DO_GFV + break; + + case 0x0E: /* SFvTPv */ + DO_SFVTPV + break; + + case 0x0F: /* ISECT */ + Ins_ISECT( EXEC_ARG_ args ); + break; + + case 0x10: /* SRP0 */ + DO_SRP0 + break; + + case 0x11: /* SRP1 */ + DO_SRP1 + break; + + case 0x12: /* SRP2 */ + DO_SRP2 + break; + + case 0x13: /* SZP0 */ + Ins_SZP0( EXEC_ARG_ args ); + break; + + case 0x14: /* SZP1 */ + Ins_SZP1( EXEC_ARG_ args ); + break; + + case 0x15: /* SZP2 */ + Ins_SZP2( EXEC_ARG_ args ); + break; + + case 0x16: /* SZPS */ + Ins_SZPS( EXEC_ARG_ args ); + break; + + case 0x17: /* SLOOP */ + DO_SLOOP + break; + + case 0x18: /* RTG */ + DO_RTG + break; + + case 0x19: /* RTHG */ + DO_RTHG + break; + + case 0x1A: /* SMD */ + DO_SMD + break; + + case 0x1B: /* ELSE */ + Ins_ELSE( EXEC_ARG_ args ); + break; + + case 0x1C: /* JMPR */ + DO_JMPR + break; + + case 0x1D: /* SCVTCI */ + DO_SCVTCI + break; + + case 0x1E: /* SSWCI */ + DO_SSWCI + break; + + case 0x1F: /* SSW */ + DO_SSW + break; + + case 0x20: /* DUP */ + DO_DUP + break; + + case 0x21: /* POP */ + /* nothing :-) */ + break; + + case 0x22: /* CLEAR */ + DO_CLEAR + break; + + case 0x23: /* SWAP */ + DO_SWAP + break; + + case 0x24: /* DEPTH */ + DO_DEPTH + break; + + case 0x25: /* CINDEX */ + DO_CINDEX + break; + + case 0x26: /* MINDEX */ + Ins_MINDEX( EXEC_ARG_ args ); + break; + + case 0x27: /* ALIGNPTS */ + Ins_ALIGNPTS( EXEC_ARG_ args ); + break; + + case 0x28: /* ???? */ + Ins_UNKNOWN( EXEC_ARG_ args ); + break; + + case 0x29: /* UTP */ + Ins_UTP( EXEC_ARG_ args ); + break; + + case 0x2A: /* LOOPCALL */ + Ins_LOOPCALL( EXEC_ARG_ args ); + break; + + case 0x2B: /* CALL */ + Ins_CALL( EXEC_ARG_ args ); + break; + + case 0x2C: /* FDEF */ + Ins_FDEF( EXEC_ARG_ args ); + break; + + case 0x2D: /* ENDF */ + Ins_ENDF( EXEC_ARG_ args ); + break; + + case 0x2E: /* MDAP */ + case 0x2F: /* MDAP */ + Ins_MDAP( EXEC_ARG_ args ); + break; + + + case 0x30: /* IUP */ + case 0x31: /* IUP */ + Ins_IUP( EXEC_ARG_ args ); + break; + + case 0x32: /* SHP */ + case 0x33: /* SHP */ + Ins_SHP( EXEC_ARG_ args ); + break; + + case 0x34: /* SHC */ + case 0x35: /* SHC */ + Ins_SHC( EXEC_ARG_ args ); + break; + + case 0x36: /* SHZ */ + case 0x37: /* SHZ */ + Ins_SHZ( EXEC_ARG_ args ); + break; + + case 0x38: /* SHPIX */ + Ins_SHPIX( EXEC_ARG_ args ); + break; + + case 0x39: /* IP */ + Ins_IP( EXEC_ARG_ args ); + break; + + case 0x3A: /* MSIRP */ + case 0x3B: /* MSIRP */ + Ins_MSIRP( EXEC_ARG_ args ); + break; + + case 0x3C: /* AlignRP */ + Ins_ALIGNRP( EXEC_ARG_ args ); + break; + + case 0x3D: /* RTDG */ + DO_RTDG + break; + + case 0x3E: /* MIAP */ + case 0x3F: /* MIAP */ + Ins_MIAP( EXEC_ARG_ args ); + break; + + case 0x40: /* NPUSHB */ + Ins_NPUSHB( EXEC_ARG_ args ); + break; + + case 0x41: /* NPUSHW */ + Ins_NPUSHW( EXEC_ARG_ args ); + break; + + case 0x42: /* WS */ + DO_WS + break; + + Set_Invalid_Ref: + CUR.error = TT_Err_Invalid_Reference; + break; + + case 0x43: /* RS */ + DO_RS + break; + + case 0x44: /* WCVTP */ + DO_WCVTP + break; + + case 0x45: /* RCVT */ + DO_RCVT + break; + + case 0x46: /* GC */ + case 0x47: /* GC */ + Ins_GC( EXEC_ARG_ args ); + break; + + case 0x48: /* SCFS */ + Ins_SCFS( EXEC_ARG_ args ); + break; + + case 0x49: /* MD */ + case 0x4A: /* MD */ + Ins_MD( EXEC_ARG_ args ); + break; + + case 0x4B: /* MPPEM */ + DO_MPPEM + break; + + case 0x4C: /* MPS */ + DO_MPS + break; + + case 0x4D: /* FLIPON */ + DO_FLIPON + break; + + case 0x4E: /* FLIPOFF */ + DO_FLIPOFF + break; + + case 0x4F: /* DEBUG */ + DO_DEBUG + break; + + case 0x50: /* LT */ + DO_LT + break; + + case 0x51: /* LTEQ */ + DO_LTEQ + break; + + case 0x52: /* GT */ + DO_GT + break; + + case 0x53: /* GTEQ */ + DO_GTEQ + break; + + case 0x54: /* EQ */ + DO_EQ + break; + + case 0x55: /* NEQ */ + DO_NEQ + break; + + case 0x56: /* ODD */ + DO_ODD + break; + + case 0x57: /* EVEN */ + DO_EVEN + break; + + case 0x58: /* IF */ + Ins_IF( EXEC_ARG_ args ); + break; + + case 0x59: /* EIF */ + /* do nothing */ + break; + + case 0x5A: /* AND */ + DO_AND + break; + + case 0x5B: /* OR */ + DO_OR + break; + + case 0x5C: /* NOT */ + DO_NOT + break; + + case 0x5D: /* DELTAP1 */ + Ins_DELTAP( EXEC_ARG_ args ); + break; + + case 0x5E: /* SDB */ + DO_SDB + break; + + case 0x5F: /* SDS */ + DO_SDS + break; + + case 0x60: /* ADD */ + DO_ADD + break; + + case 0x61: /* SUB */ + DO_SUB + break; + + case 0x62: /* DIV */ + DO_DIV + break; + + case 0x63: /* MUL */ + DO_MUL + break; + + case 0x64: /* ABS */ + DO_ABS + break; + + case 0x65: /* NEG */ + DO_NEG + break; + + case 0x66: /* FLOOR */ + DO_FLOOR + break; + + case 0x67: /* CEILING */ + DO_CEILING + break; + + case 0x68: /* ROUND */ + case 0x69: /* ROUND */ + case 0x6A: /* ROUND */ + case 0x6B: /* ROUND */ + DO_ROUND + break; + + case 0x6C: /* NROUND */ + case 0x6D: /* NROUND */ + case 0x6E: /* NRRUND */ + case 0x6F: /* NROUND */ + DO_NROUND + break; + + case 0x70: /* WCVTF */ + DO_WCVTF + break; + + case 0x71: /* DELTAP2 */ + case 0x72: /* DELTAP3 */ + Ins_DELTAP( EXEC_ARG_ args ); + break; + + case 0x73: /* DELTAC0 */ + case 0x74: /* DELTAC1 */ + case 0x75: /* DELTAC2 */ + Ins_DELTAC( EXEC_ARG_ args ); + break; + + case 0x76: /* SROUND */ + DO_SROUND + break; + + case 0x77: /* S45Round */ + DO_S45ROUND + break; + + case 0x78: /* JROT */ + DO_JROT + break; + + case 0x79: /* JROF */ + DO_JROF + break; + + case 0x7A: /* ROFF */ + DO_ROFF + break; + + case 0x7B: /* ???? */ + Ins_UNKNOWN( EXEC_ARG_ args ); + break; + + case 0x7C: /* RUTG */ + DO_RUTG + break; + + case 0x7D: /* RDTG */ + DO_RDTG + break; + + case 0x7E: /* SANGW */ + case 0x7F: /* AA */ + /* nothing - obsolete */ + break; + + case 0x80: /* FLIPPT */ + Ins_FLIPPT( EXEC_ARG_ args ); + break; + + case 0x81: /* FLIPRGON */ + Ins_FLIPRGON( EXEC_ARG_ args ); + break; + + case 0x82: /* FLIPRGOFF */ + Ins_FLIPRGOFF( EXEC_ARG_ args ); + break; + + case 0x83: /* UNKNOWN */ + case 0x84: /* UNKNOWN */ + Ins_UNKNOWN( EXEC_ARG_ args ); + break; + + case 0x85: /* SCANCTRL */ + Ins_SCANCTRL( EXEC_ARG_ args ); + break; + + case 0x86: /* SDPVTL */ + case 0x87: /* SDPVTL */ + Ins_SDPVTL( EXEC_ARG_ args ); + break; + + case 0x88: /* GETINFO */ + Ins_GETINFO( EXEC_ARG_ args ); + break; + + case 0x89: /* IDEF */ + Ins_IDEF( EXEC_ARG_ args ); + break; + + case 0x8A: /* ROLL */ + Ins_ROLL( EXEC_ARG_ args ); + break; + + case 0x8B: /* MAX */ + DO_MAX + break; + + case 0x8C: /* MIN */ + DO_MIN + break; + + case 0x8D: /* SCANTYPE */ + Ins_SCANTYPE( EXEC_ARG_ args ); + break; + + case 0x8E: /* INSTCTRL */ + Ins_INSTCTRL( EXEC_ARG_ args ); + break; + + case 0x8F: + Ins_UNKNOWN( EXEC_ARG_ args ); + break; + + default: + if ( opcode >= 0xE0 ) + Ins_MIRP( EXEC_ARG_ args ); + else if ( opcode >= 0xC0 ) + Ins_MDRP( EXEC_ARG_ args ); + else if ( opcode >= 0xB8 ) + Ins_PUSHW( EXEC_ARG_ args ); + else if ( opcode >= 0xB0 ) + Ins_PUSHB( EXEC_ARG_ args ); + else + Ins_UNKNOWN( EXEC_ARG_ args ); + } + + } + +#else + + Instruct_Dispatch[CUR.opcode]( EXEC_ARG_ &CUR.stack[CUR.args] ); + +#endif /* TT_CONFIG_OPTION_INTERPRETER_SWITCH */ + + if ( CUR.error != TT_Err_Ok ) + { + switch ( CUR.error ) + { + case TT_Err_Invalid_Opcode: /* looking for redefined instructions */ + { + TT_DefRecord* def = CUR.IDefs; + TT_DefRecord* limit = def + CUR.numIDefs; + + + for ( ; def < limit; def++ ) + { + if ( def->active && CUR.opcode == (FT_Byte)def->opc ) + { + TT_CallRec* callrec; + + + if ( CUR.callTop >= CUR.callSize ) + { + CUR.error = TT_Err_Invalid_Reference; + goto LErrorLabel_; + } + + callrec = &CUR.callStack[CUR.callTop]; + + callrec->Caller_Range = CUR.curRange; + callrec->Caller_IP = CUR.IP + 1; + callrec->Cur_Count = 1; + callrec->Cur_Restart = def->start; + callrec->Cur_End = def->end; + + if ( INS_Goto_CodeRange( def->range, def->start ) == FAILURE ) + goto LErrorLabel_; + + goto LSuiteLabel_; + } + } + } + + CUR.error = TT_Err_Invalid_Opcode; + goto LErrorLabel_; + +#if 0 + break; /* Unreachable code warning suppression. */ + /* Leave to remind in case a later change the editor */ + /* to consider break; */ +#endif + + default: + goto LErrorLabel_; + +#if 0 + break; +#endif + } + } + + CUR.top = CUR.new_top; + + if ( CUR.step_ins ) + CUR.IP += CUR.length; + + /* increment instruction counter and check if we didn't */ + /* run this program for too long (e.g. infinite loops). */ + if ( ++ins_counter > MAX_RUNNABLE_OPCODES ) + return TT_Err_Execution_Too_Long; + + LSuiteLabel_: + if ( CUR.IP >= CUR.codeSize ) + { + if ( CUR.callTop > 0 ) + { + CUR.error = TT_Err_Code_Overflow; + goto LErrorLabel_; + } + else + goto LNo_Error_; + } + } while ( !CUR.instruction_trap ); + + LNo_Error_: + +#ifdef TT_CONFIG_OPTION_STATIC_RASTER + *exc = cur; +#endif + + return TT_Err_Ok; + + LErrorCodeOverflow_: + CUR.error = TT_Err_Code_Overflow; + + LErrorLabel_: + +#ifdef TT_CONFIG_OPTION_STATIC_RASTER + *exc = cur; +#endif + + /* If any errors have occurred, function tables may be broken. */ + /* Force a re-execution of `prep' and `fpgm' tables if no */ + /* bytecode debugger is run. */ + if ( CUR.error && !CUR.instruction_trap ) + { + FT_TRACE1(( " The interpreter returned error 0x%x\n", CUR.error )); + exc->size->cvt_ready = FALSE; + } + + return CUR.error; + } + + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + +/* END */ diff --git a/src/truetype/ttinterp.h b/src/truetype/ttinterp.h new file mode 100644 index 0000000..6d0fc03 --- /dev/null +++ b/src/truetype/ttinterp.h @@ -0,0 +1,320 @@ +/***************************************************************************/ +/* */ +/* ttinterp.h */ +/* */ +/* TrueType bytecode interpreter (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTINTERP_H__ +#define __TTINTERP_H__ + +#include +#include "ttobjs.h" + + +FT_BEGIN_HEADER + + +#ifndef TT_CONFIG_OPTION_STATIC_INTERPRETER /* indirect implementation */ + +#define EXEC_OP_ TT_ExecContext exc, +#define EXEC_OP TT_ExecContext exc +#define EXEC_ARG_ exc, +#define EXEC_ARG exc + +#else /* static implementation */ + +#define EXEC_OP_ /* void */ +#define EXEC_OP /* void */ +#define EXEC_ARG_ /* void */ +#define EXEC_ARG /* void */ + +#endif /* TT_CONFIG_OPTION_STATIC_INTERPRETER */ + + + /*************************************************************************/ + /* */ + /* Rounding mode constants. */ + /* */ +#define TT_Round_Off 5 +#define TT_Round_To_Half_Grid 0 +#define TT_Round_To_Grid 1 +#define TT_Round_To_Double_Grid 2 +#define TT_Round_Up_To_Grid 4 +#define TT_Round_Down_To_Grid 3 +#define TT_Round_Super 6 +#define TT_Round_Super_45 7 + + + /*************************************************************************/ + /* */ + /* Function types used by the interpreter, depending on various modes */ + /* (e.g. the rounding mode, whether to render a vertical or horizontal */ + /* line etc). */ + /* */ + /*************************************************************************/ + + /* Rounding function */ + typedef FT_F26Dot6 + (*TT_Round_Func)( EXEC_OP_ FT_F26Dot6 distance, + FT_F26Dot6 compensation ); + + /* Point displacement along the freedom vector routine */ + typedef void + (*TT_Move_Func)( EXEC_OP_ TT_GlyphZone zone, + FT_UShort point, + FT_F26Dot6 distance ); + + /* Distance projection along one of the projection vectors */ + typedef FT_F26Dot6 + (*TT_Project_Func)( EXEC_OP_ FT_Pos dx, + FT_Pos dy ); + + /* reading a cvt value. Take care of non-square pixels if necessary */ + typedef FT_F26Dot6 + (*TT_Get_CVT_Func)( EXEC_OP_ FT_ULong idx ); + + /* setting or moving a cvt value. Take care of non-square pixels */ + /* if necessary */ + typedef void + (*TT_Set_CVT_Func)( EXEC_OP_ FT_ULong idx, + FT_F26Dot6 value ); + + + /*************************************************************************/ + /* */ + /* This structure defines a call record, used to manage function calls. */ + /* */ + typedef struct TT_CallRec_ + { + FT_Int Caller_Range; + FT_Long Caller_IP; + FT_Long Cur_Count; + FT_Long Cur_Restart; + FT_Long Cur_End; + + } TT_CallRec, *TT_CallStack; + + + /*************************************************************************/ + /* */ + /* The main structure for the interpreter which collects all necessary */ + /* variables and states. */ + /* */ + typedef struct TT_ExecContextRec_ + { + TT_Face face; + TT_Size size; + FT_Memory memory; + + /* instructions state */ + + FT_Error error; /* last execution error */ + + FT_Long top; /* top of exec. stack */ + + FT_UInt stackSize; /* size of exec. stack */ + FT_Long* stack; /* current exec. stack */ + + FT_Long args; + FT_UInt new_top; /* new top after exec. */ + + TT_GlyphZoneRec zp0, /* zone records */ + zp1, + zp2, + pts, + twilight; + + FT_Size_Metrics metrics; + TT_Size_Metrics tt_metrics; /* size metrics */ + + TT_GraphicsState GS; /* current graphics state */ + + FT_Int curRange; /* current code range number */ + FT_Byte* code; /* current code range */ + FT_Long IP; /* current instruction pointer */ + FT_Long codeSize; /* size of current range */ + + FT_Byte opcode; /* current opcode */ + FT_Int length; /* length of current opcode */ + + FT_Bool step_ins; /* true if the interpreter must */ + /* increment IP after ins. exec */ + FT_ULong cvtSize; + FT_Long* cvt; + + FT_UInt glyphSize; /* glyph instructions buffer size */ + FT_Byte* glyphIns; /* glyph instructions buffer */ + + FT_UInt numFDefs; /* number of function defs */ + FT_UInt maxFDefs; /* maximum number of function defs */ + TT_DefArray FDefs; /* table of FDefs entries */ + + FT_UInt numIDefs; /* number of instruction defs */ + FT_UInt maxIDefs; /* maximum number of ins defs */ + TT_DefArray IDefs; /* table of IDefs entries */ + + FT_UInt maxFunc; /* maximum function index */ + FT_UInt maxIns; /* maximum instruction index */ + + FT_Int callTop, /* top of call stack during execution */ + callSize; /* size of call stack */ + TT_CallStack callStack; /* call stack */ + + FT_UShort maxPoints; /* capacity of this context's `pts' */ + FT_Short maxContours; /* record, expressed in points and */ + /* contours. */ + + TT_CodeRangeTable codeRangeTable; /* table of valid code ranges */ + /* useful for the debugger */ + + FT_UShort storeSize; /* size of current storage */ + FT_Long* storage; /* storage area */ + + FT_F26Dot6 period; /* values used for the */ + FT_F26Dot6 phase; /* `SuperRounding' */ + FT_F26Dot6 threshold; + +#if 0 + /* this seems to be unused */ + FT_Int cur_ppem; /* ppem along the current proj vector */ +#endif + + FT_Bool instruction_trap; /* If `True', the interpreter will */ + /* exit after each instruction */ + + TT_GraphicsState default_GS; /* graphics state resulting from */ + /* the prep program */ + FT_Bool is_composite; /* true if the glyph is composite */ + FT_Bool pedantic_hinting; /* true if pedantic interpretation */ + + /* latest interpreter additions */ + + FT_Long F_dot_P; /* dot product of freedom and projection */ + /* vectors */ + TT_Round_Func func_round; /* current rounding function */ + + TT_Project_Func func_project, /* current projection function */ + func_dualproj, /* current dual proj. function */ + func_freeProj; /* current freedom proj. func */ + + TT_Move_Func func_move; /* current point move function */ + TT_Move_Func func_move_orig; /* move original position function */ + + TT_Get_CVT_Func func_read_cvt; /* read a cvt entry */ + TT_Set_CVT_Func func_write_cvt; /* write a cvt entry (in pixels) */ + TT_Set_CVT_Func func_move_cvt; /* incr a cvt entry (in pixels) */ + + FT_Bool grayscale; /* are we hinting for grayscale? */ + + } TT_ExecContextRec; + + + extern const TT_GraphicsState tt_default_graphics_state; + + + FT_LOCAL( FT_Error ) + TT_Goto_CodeRange( TT_ExecContext exec, + FT_Int range, + FT_Long IP ); + + FT_LOCAL( FT_Error ) + TT_Set_CodeRange( TT_ExecContext exec, + FT_Int range, + void* base, + FT_Long length ); + + FT_LOCAL( FT_Error ) + TT_Clear_CodeRange( TT_ExecContext exec, + FT_Int range ); + + + FT_LOCAL( FT_Error ) + Update_Max( FT_Memory memory, + FT_ULong* size, + FT_Long multiplier, + void* _pbuff, + FT_ULong new_max ); + + + /*************************************************************************/ + /* */ + /* */ + /* TT_New_Context */ + /* */ + /* */ + /* Queries the face context for a given font. Note that there is */ + /* now a _single_ execution context in the TrueType driver which is */ + /* shared among faces. */ + /* */ + /* */ + /* face :: A handle to the source face object. */ + /* */ + /* */ + /* A handle to the execution context. Initialized for `face'. */ + /* */ + /* */ + /* Only the glyph loader and debugger should call this function. */ + /* */ + FT_EXPORT( TT_ExecContext ) + TT_New_Context( TT_Driver driver ); + + FT_LOCAL( FT_Error ) + TT_Done_Context( TT_ExecContext exec ); + + FT_LOCAL( FT_Error ) + TT_Load_Context( TT_ExecContext exec, + TT_Face face, + TT_Size size ); + + FT_LOCAL( FT_Error ) + TT_Save_Context( TT_ExecContext exec, + TT_Size ins ); + + FT_LOCAL( FT_Error ) + TT_Run_Context( TT_ExecContext exec, + FT_Bool debug ); + + + /*************************************************************************/ + /* */ + /* */ + /* TT_RunIns */ + /* */ + /* */ + /* Executes one or more instruction in the execution context. This */ + /* is the main function of the TrueType opcode interpreter. */ + /* */ + /* */ + /* exec :: A handle to the target execution context. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + /* */ + /* Only the object manager and debugger should call this function. */ + /* */ + /* This function is publicly exported because it is directly */ + /* invoked by the TrueType debugger. */ + /* */ + FT_EXPORT( FT_Error ) + TT_RunIns( TT_ExecContext exec ); + + +FT_END_HEADER + +#endif /* __TTINTERP_H__ */ + + +/* END */ diff --git a/src/truetype/ttobjs.c b/src/truetype/ttobjs.c new file mode 100644 index 0000000..814c713 --- /dev/null +++ b/src/truetype/ttobjs.c @@ -0,0 +1,1286 @@ +/***************************************************************************/ +/* */ +/* ttobjs.c */ +/* */ +/* Objects manager (body). */ +/* */ +/* Copyright 1996-2011 */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H +#include FT_INTERNAL_SFNT_H + +#include "ttgload.h" +#include "ttpload.h" + +#include "tterrors.h" + +#ifdef TT_USE_BYTECODE_INTERPRETER +#include "ttinterp.h" +#endif + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING +#include FT_TRUETYPE_UNPATENTED_H +#endif + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include "ttgxvar.h" +#endif + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttobjs + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + /*************************************************************************/ + /* */ + /* GLYPH ZONE FUNCTIONS */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* tt_glyphzone_done */ + /* */ + /* */ + /* Deallocate a glyph zone. */ + /* */ + /* */ + /* zone :: A pointer to the target glyph zone. */ + /* */ + FT_LOCAL_DEF( void ) + tt_glyphzone_done( TT_GlyphZone zone ) + { + FT_Memory memory = zone->memory; + + + if ( memory ) + { + FT_FREE( zone->contours ); + FT_FREE( zone->tags ); + FT_FREE( zone->cur ); + FT_FREE( zone->org ); + FT_FREE( zone->orus ); + + zone->max_points = zone->n_points = 0; + zone->max_contours = zone->n_contours = 0; + zone->memory = NULL; + } + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_glyphzone_new */ + /* */ + /* */ + /* Allocate a new glyph zone. */ + /* */ + /* */ + /* memory :: A handle to the current memory object. */ + /* */ + /* maxPoints :: The capacity of glyph zone in points. */ + /* */ + /* maxContours :: The capacity of glyph zone in contours. */ + /* */ + /* */ + /* zone :: A pointer to the target glyph zone record. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_glyphzone_new( FT_Memory memory, + FT_UShort maxPoints, + FT_Short maxContours, + TT_GlyphZone zone ) + { + FT_Error error; + + + FT_MEM_ZERO( zone, sizeof ( *zone ) ); + zone->memory = memory; + + if ( FT_NEW_ARRAY( zone->org, maxPoints ) || + FT_NEW_ARRAY( zone->cur, maxPoints ) || + FT_NEW_ARRAY( zone->orus, maxPoints ) || + FT_NEW_ARRAY( zone->tags, maxPoints ) || + FT_NEW_ARRAY( zone->contours, maxContours ) ) + { + tt_glyphzone_done( zone ); + } + else + { + zone->max_points = maxPoints; + zone->max_contours = maxContours; + } + + return error; + } +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + /* Compare the face with a list of well-known `tricky' fonts. */ + /* This list shall be expanded as we find more of them. */ + + static FT_Bool + tt_check_trickyness_family( FT_String* name ) + { + +#define TRICK_NAMES_MAX_CHARACTERS 16 +#define TRICK_NAMES_COUNT 8 + + static const char trick_names[TRICK_NAMES_COUNT] + [TRICK_NAMES_MAX_CHARACTERS + 1] = + { + "DFKaiSho-SB", /* dfkaisb.ttf */ + "DFKaiShu", + "DFKai-SB", /* kaiu.ttf */ + "HuaTianKaiTi?", /* htkt2.ttf */ + "HuaTianSongTi?", /* htst3.ttf */ + "MingLiU", /* mingliu.ttf & mingliu.ttc */ + "PMingLiU", /* mingliu.ttc */ + "MingLi43", /* mingli.ttf */ + }; + + int nn; + + + for ( nn = 0; nn < TRICK_NAMES_COUNT; nn++ ) + if ( ft_strstr( name, trick_names[nn] ) ) + return TRUE; + + return FALSE; + } + + + /* XXX: This function should be in the `sfnt' module. */ + + /* Some PDF generators clear the checksums in the TrueType header table. */ + /* For example, Quartz ContextPDF clears all entries, or Bullzip PDF */ + /* Printer clears the entries for subsetted subtables. We thus have to */ + /* recalculate the checksums where necessary. */ + + static FT_UInt32 + tt_synth_sfnt_checksum( FT_Stream stream, + FT_ULong length ) + { + FT_Error error; + FT_UInt32 checksum = 0; + int i; + + + if ( FT_FRAME_ENTER( length ) ) + return 0; + + for ( ; length > 3; length -= 4 ) + checksum += (FT_UInt32)FT_GET_ULONG(); + + for ( i = 3; length > 0; length --, i-- ) + checksum += (FT_UInt32)( FT_GET_BYTE() << ( i * 8 ) ); + + FT_FRAME_EXIT(); + + return checksum; + } + + + /* XXX: This function should be in the `sfnt' module. */ + + static FT_ULong + tt_get_sfnt_checksum( TT_Face face, + FT_UShort i ) + { +#if 0 /* if we believe the written value, use following part. */ + if ( face->dir_tables[i].CheckSum ) + return face->dir_tables[i].CheckSum; +#endif + + if ( !face->goto_table ) + return 0; + + if ( face->goto_table( face, + face->dir_tables[i].Tag, + face->root.stream, + NULL ) ) + return 0; + + return (FT_ULong)tt_synth_sfnt_checksum( face->root.stream, + face->dir_tables[i].Length ); + } + + + typedef struct tt_sfnt_id_rec_ + { + FT_ULong CheckSum; + FT_ULong Length; + + } tt_sfnt_id_rec; + + + static FT_Bool + tt_check_trickyness_sfnt_ids( TT_Face face ) + { +#define TRICK_SFNT_IDS_PER_FACE 3 +#define TRICK_SFNT_IDS_NUM_FACES 13 + + static const tt_sfnt_id_rec sfnt_id[TRICK_SFNT_IDS_NUM_FACES] + [TRICK_SFNT_IDS_PER_FACE] = { + +#define TRICK_SFNT_ID_cvt 0 +#define TRICK_SFNT_ID_fpgm 1 +#define TRICK_SFNT_ID_prep 2 + + { /* MingLiU 1995 */ + { 0x05bcf058, 0x000002e4 }, /* cvt */ + { 0x28233bf1, 0x000087c4 }, /* fpgm */ + { 0xa344a1ea, 0x000001e1 } /* prep */ + }, + { /* MingLiU 1996- */ + { 0x05bcf058, 0x000002e4 }, /* cvt */ + { 0x28233bf1, 0x000087c4 }, /* fpgm */ + { 0xa344a1eb, 0x000001e1 } /* prep */ + }, + { /* DFKaiShu */ + { 0x11e5ead4, 0x00000350 }, /* cvt */ + { 0x5a30ca3b, 0x00009063 }, /* fpgm */ + { 0x13a42602, 0x0000007e } /* prep */ + }, + { /* HuaTianKaiTi */ + { 0xfffbfffc, 0x00000008 }, /* cvt */ + { 0x9c9e48b8, 0x0000bea2 }, /* fpgm */ + { 0x70020112, 0x00000008 } /* prep */ + }, + { /* HuaTianSongTi */ + { 0xfffbfffc, 0x00000008 }, /* cvt */ + { 0x0a5a0483, 0x00017c39 }, /* fpgm */ + { 0x70020112, 0x00000008 } /* prep */ + }, + { /* NEC fadpop7.ttf */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x40c92555, 0x000000e5 }, /* fpgm */ + { 0xa39b58e3, 0x0000117c } /* prep */ + }, + { /* NEC fadrei5.ttf */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x33c41652, 0x000000e5 }, /* fpgm */ + { 0x26d6c52a, 0x00000f6a } /* prep */ + }, + { /* NEC fangot7.ttf */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x6db1651d, 0x0000019d }, /* fpgm */ + { 0x6c6e4b03, 0x00002492 } /* prep */ + }, + { /* NEC fangyo5.ttf */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x40c92555, 0x000000e5 }, /* fpgm */ + { 0xde51fad0, 0x0000117c } /* prep */ + }, + { /* NEC fankyo5.ttf */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x85e47664, 0x000000e5 }, /* fpgm */ + { 0xa6c62831, 0x00001caa } /* prep */ + }, + { /* NEC fanrgo5.ttf */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x2d891cfd, 0x0000019d }, /* fpgm */ + { 0xa0604633, 0x00001de8 } /* prep */ + }, + { /* NEC fangot5.ttc */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x40aa774c, 0x000001cb }, /* fpgm */ + { 0x9b5caa96, 0x00001f9a } /* prep */ + }, + { /* NEC fanmin3.ttc */ + { 0x00000000, 0x00000000 }, /* cvt */ + { 0x0d3de9cb, 0x00000141 }, /* fpgm */ + { 0xd4127766, 0x00002280 } /* prep */ + } + }; + + FT_ULong checksum; + int num_matched_ids[TRICK_SFNT_IDS_NUM_FACES]; + FT_Bool has_cvt, has_fpgm, has_prep; + FT_UShort i; + int j, k; + + + FT_MEM_SET( num_matched_ids, 0, + sizeof ( int ) * TRICK_SFNT_IDS_NUM_FACES ); + has_cvt = FALSE; + has_fpgm = FALSE; + has_prep = FALSE; + + for ( i = 0; i < face->num_tables; i++ ) + { + checksum = 0; + + switch( face->dir_tables[i].Tag ) + { + case TTAG_cvt: + k = TRICK_SFNT_ID_cvt; + has_cvt = TRUE; + break; + + case TTAG_fpgm: + k = TRICK_SFNT_ID_fpgm; + has_fpgm = TRUE; + break; + + case TTAG_prep: + k = TRICK_SFNT_ID_prep; + has_prep = TRUE; + break; + + default: + continue; + } + + for ( j = 0; j < TRICK_SFNT_IDS_NUM_FACES; j++ ) + if ( face->dir_tables[i].Length == sfnt_id[j][k].Length ) + { + if ( !checksum ) + checksum = tt_get_sfnt_checksum( face, i ); + + if ( sfnt_id[j][k].CheckSum == checksum ) + num_matched_ids[j]++; + + if ( num_matched_ids[j] == TRICK_SFNT_IDS_PER_FACE ) + return TRUE; + } + } + + for ( j = 0; j < TRICK_SFNT_IDS_NUM_FACES; j++ ) + { + if ( !has_cvt && !sfnt_id[j][TRICK_SFNT_ID_cvt].Length ) + num_matched_ids[j] ++; + if ( !has_fpgm && !sfnt_id[j][TRICK_SFNT_ID_fpgm].Length ) + num_matched_ids[j] ++; + if ( !has_prep && !sfnt_id[j][TRICK_SFNT_ID_prep].Length ) + num_matched_ids[j] ++; + if ( num_matched_ids[j] == TRICK_SFNT_IDS_PER_FACE ) + return TRUE; + } + + return FALSE; + } + + + static FT_Bool + tt_check_trickyness( FT_Face face ) + { + if ( !face ) + return FALSE; + + /* For first, check the face name for quick check. */ + if ( face->family_name && + tt_check_trickyness_family( face->family_name ) ) + return TRUE; + + /* Type42 fonts may lack `name' tables, we thus try to identify */ + /* tricky fonts by checking the checksums of Type42-persistent */ + /* sfnt tables (`cvt', `fpgm', and `prep'). */ + if ( tt_check_trickyness_sfnt_ids( (TT_Face)face ) ) + return TRUE; + + return FALSE; + } + + + /* Check whether `.notdef' is the only glyph in the `loca' table. */ + static FT_Bool + tt_check_single_notdef( FT_Face ttface ) + { + FT_Bool result = FALSE; + + TT_Face face = (TT_Face)ttface; + FT_UInt asize; + FT_ULong i; + FT_ULong glyph_index = 0; + FT_UInt count = 0; + + + for( i = 0; i < face->num_locations; i++ ) + { + tt_face_get_location( face, i, &asize ); + if ( asize > 0 ) + { + count += 1; + if ( count > 1 ) + break; + glyph_index = i; + } + } + + /* Only have a single outline. */ + if ( count == 1 ) + { + if ( glyph_index == 0 ) + result = TRUE; + else + { + /* FIXME: Need to test glyphname == .notdef ? */ + FT_Error error; + char buf[8]; + + + error = FT_Get_Glyph_Name( ttface, glyph_index, buf, 8 ); + if ( !error && + buf[0] == '.' && !ft_strncmp( buf, ".notdef", 8 ) ) + result = TRUE; + } + } + + return result; + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_face_init */ + /* */ + /* */ + /* Initialize a given TrueType face object. */ + /* */ + /* */ + /* stream :: The source font stream. */ + /* */ + /* face_index :: The index of the font face in the resource. */ + /* */ + /* num_params :: Number of additional generic parameters. Ignored. */ + /* */ + /* params :: Additional generic parameters. Ignored. */ + /* */ + /* */ + /* face :: The newly built face object. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_init( FT_Stream stream, + FT_Face ttface, /* TT_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + FT_Error error; + FT_Library library; + SFNT_Service sfnt; + TT_Face face = (TT_Face)ttface; + + + FT_TRACE2(( "TTF driver\n" )); + + library = ttface->driver->root.library; + + sfnt = (SFNT_Service)FT_Get_Module_Interface( library, "sfnt" ); + if ( !sfnt ) + { + FT_ERROR(( "tt_face_init: cannot access `sfnt' module\n" )); + error = TT_Err_Missing_Module; + goto Exit; + } + + /* create input stream from resource */ + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + + /* check that we have a valid TrueType file */ + error = sfnt->init_face( stream, face, face_index, num_params, params ); + if ( error ) + goto Exit; + + /* We must also be able to accept Mac/GX fonts, as well as OT ones. */ + /* The 0x00020000 tag is completely undocumented; some fonts from */ + /* Arphic made for Chinese Windows 3.1 have this. */ + if ( face->format_tag != 0x00010000L && /* MS fonts */ + face->format_tag != 0x00020000L && /* CJK fonts for Win 3.1 */ + face->format_tag != TTAG_true ) /* Mac fonts */ + { + FT_TRACE2(( " not a TTF font\n" )); + goto Bad_Format; + } + +#ifdef TT_USE_BYTECODE_INTERPRETER + ttface->face_flags |= FT_FACE_FLAG_HINTER; +#endif + + /* If we are performing a simple font format check, exit immediately. */ + if ( face_index < 0 ) + return TT_Err_Ok; + + /* Load font directory */ + error = sfnt->load_face( stream, face, face_index, num_params, params ); + if ( error ) + goto Exit; + + if ( tt_check_trickyness( ttface ) ) + ttface->face_flags |= FT_FACE_FLAG_TRICKY; + + error = tt_face_load_hdmx( face, stream ); + if ( error ) + goto Exit; + + if ( FT_IS_SCALABLE( ttface ) ) + { + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + if ( !ttface->internal->incremental_interface ) + error = tt_face_load_loca( face, stream ); + if ( !error ) + error = tt_face_load_cvt( face, stream ); + if ( !error ) + error = tt_face_load_fpgm( face, stream ); + if ( !error ) + error = tt_face_load_prep( face, stream ); + + /* Check the scalable flag based on `loca'. */ + if ( !ttface->internal->incremental_interface && + ttface->num_fixed_sizes && + face->glyph_locations && + tt_check_single_notdef( ttface ) ) + { + FT_TRACE5(( "tt_face_init:" + " Only the `.notdef' glyph has an outline.\n" + " " + " Resetting scalable flag to FALSE.\n" )); + + ttface->face_flags &= ~FT_FACE_FLAG_SCALABLE; + } + +#else + + if ( !error ) + error = tt_face_load_loca( face, stream ); + if ( !error ) + error = tt_face_load_cvt( face, stream ); + if ( !error ) + error = tt_face_load_fpgm( face, stream ); + if ( !error ) + error = tt_face_load_prep( face, stream ); + + /* Check the scalable flag based on `loca'. */ + if ( ttface->num_fixed_sizes && + face->glyph_locations && + tt_check_single_notdef( ttface ) ) + { + FT_TRACE5(( "tt_face_init:" + " Only the `.notdef' glyph has an outline.\n" + " " + " Resetting scalable flag to FALSE.\n" )); + + ttface->face_flags &= ~FT_FACE_FLAG_SCALABLE; + } + +#endif + + } + +#if defined( TT_CONFIG_OPTION_UNPATENTED_HINTING ) && \ + !defined( TT_CONFIG_OPTION_BYTECODE_INTERPRETER ) + + { + FT_Bool unpatented_hinting; + int i; + + + /* Determine whether unpatented hinting is to be used for this face. */ + unpatented_hinting = FT_BOOL + ( library->debug_hooks[FT_DEBUG_HOOK_UNPATENTED_HINTING] != NULL ); + + for ( i = 0; i < num_params && !face->unpatented_hinting; i++ ) + if ( params[i].tag == FT_PARAM_TAG_UNPATENTED_HINTING ) + unpatented_hinting = TRUE; + + if ( !unpatented_hinting ) + ttface->internal->ignore_unpatented_hinter = TRUE; + } + +#endif /* TT_CONFIG_OPTION_UNPATENTED_HINTING && + !TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ + + /* initialize standard glyph loading routines */ + TT_Init_Glyph_Loading( face ); + + Exit: + return error; + + Bad_Format: + error = TT_Err_Unknown_File_Format; + goto Exit; + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_face_done */ + /* */ + /* */ + /* Finalize a given face object. */ + /* */ + /* */ + /* face :: A pointer to the face object to destroy. */ + /* */ + FT_LOCAL_DEF( void ) + tt_face_done( FT_Face ttface ) /* TT_Face */ + { + TT_Face face = (TT_Face)ttface; + FT_Memory memory; + FT_Stream stream; + SFNT_Service sfnt; + + + if ( !face ) + return; + + memory = ttface->memory; + stream = ttface->stream; + sfnt = (SFNT_Service)face->sfnt; + + /* for `extended TrueType formats' (i.e. compressed versions) */ + if ( face->extra.finalizer ) + face->extra.finalizer( face->extra.data ); + + if ( sfnt ) + sfnt->done_face( face ); + + /* freeing the locations table */ + tt_face_done_loca( face ); + + tt_face_free_hdmx( face ); + + /* freeing the CVT */ + FT_FREE( face->cvt ); + face->cvt_size = 0; + + /* freeing the programs */ + FT_FRAME_RELEASE( face->font_program ); + FT_FRAME_RELEASE( face->cvt_program ); + face->font_program_size = 0; + face->cvt_program_size = 0; + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + tt_done_blend( memory, face->blend ); + face->blend = NULL; +#endif + } + + + /*************************************************************************/ + /* */ + /* SIZE FUNCTIONS */ + /* */ + /*************************************************************************/ + +#ifdef TT_USE_BYTECODE_INTERPRETER + + /*************************************************************************/ + /* */ + /* */ + /* tt_size_run_fpgm */ + /* */ + /* */ + /* Run the font program. */ + /* */ + /* */ + /* size :: A handle to the size object. */ + /* */ + /* pedantic :: Set if bytecode execution should be pedantic. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_size_run_fpgm( TT_Size size, + FT_Bool pedantic ) + { + TT_Face face = (TT_Face)size->root.face; + TT_ExecContext exec; + FT_Error error; + + + /* debugging instances have their own context */ + if ( size->debug ) + exec = size->context; + else + exec = ( (TT_Driver)FT_FACE_DRIVER( face ) )->context; + + if ( !exec ) + return TT_Err_Could_Not_Find_Context; + + TT_Load_Context( exec, face, size ); + + exec->callTop = 0; + exec->top = 0; + + exec->period = 64; + exec->phase = 0; + exec->threshold = 0; + + exec->instruction_trap = FALSE; + exec->F_dot_P = 0x10000L; + + exec->pedantic_hinting = pedantic; + + { + FT_Size_Metrics* metrics = &exec->metrics; + TT_Size_Metrics* tt_metrics = &exec->tt_metrics; + + + metrics->x_ppem = 0; + metrics->y_ppem = 0; + metrics->x_scale = 0; + metrics->y_scale = 0; + + tt_metrics->ppem = 0; + tt_metrics->scale = 0; + tt_metrics->ratio = 0x10000L; + } + + /* allow font program execution */ + TT_Set_CodeRange( exec, + tt_coderange_font, + face->font_program, + face->font_program_size ); + + /* disable CVT and glyph programs coderange */ + TT_Clear_CodeRange( exec, tt_coderange_cvt ); + TT_Clear_CodeRange( exec, tt_coderange_glyph ); + + if ( face->font_program_size > 0 ) + { + error = TT_Goto_CodeRange( exec, tt_coderange_font, 0 ); + + if ( !error ) + { + FT_TRACE4(( "Executing `fpgm' table.\n" )); + + error = face->interpreter( exec ); + } + } + else + error = TT_Err_Ok; + + if ( !error ) + TT_Save_Context( exec, size ); + + return error; + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_size_run_prep */ + /* */ + /* */ + /* Run the control value program. */ + /* */ + /* */ + /* size :: A handle to the size object. */ + /* */ + /* pedantic :: Set if bytecode execution should be pedantic. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_size_run_prep( TT_Size size, + FT_Bool pedantic ) + { + TT_Face face = (TT_Face)size->root.face; + TT_ExecContext exec; + FT_Error error; + + + /* debugging instances have their own context */ + if ( size->debug ) + exec = size->context; + else + exec = ( (TT_Driver)FT_FACE_DRIVER( face ) )->context; + + if ( !exec ) + return TT_Err_Could_Not_Find_Context; + + TT_Load_Context( exec, face, size ); + + exec->callTop = 0; + exec->top = 0; + + exec->instruction_trap = FALSE; + + exec->pedantic_hinting = pedantic; + + TT_Set_CodeRange( exec, + tt_coderange_cvt, + face->cvt_program, + face->cvt_program_size ); + + TT_Clear_CodeRange( exec, tt_coderange_glyph ); + + if ( face->cvt_program_size > 0 ) + { + error = TT_Goto_CodeRange( exec, tt_coderange_cvt, 0 ); + + if ( !error && !size->debug ) + { + FT_TRACE4(( "Executing `prep' table.\n" )); + + error = face->interpreter( exec ); + } + } + else + error = TT_Err_Ok; + + /* save as default graphics state */ + size->GS = exec->GS; + + TT_Save_Context( exec, size ); + + return error; + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + static void + tt_size_done_bytecode( FT_Size ftsize ) + { + TT_Size size = (TT_Size)ftsize; + TT_Face face = (TT_Face)ftsize->face; + FT_Memory memory = face->root.memory; + + + if ( size->debug ) + { + /* the debug context must be deleted by the debugger itself */ + size->context = NULL; + size->debug = FALSE; + } + + FT_FREE( size->cvt ); + size->cvt_size = 0; + + /* free storage area */ + FT_FREE( size->storage ); + size->storage_size = 0; + + /* twilight zone */ + tt_glyphzone_done( &size->twilight ); + + FT_FREE( size->function_defs ); + FT_FREE( size->instruction_defs ); + + size->num_function_defs = 0; + size->max_function_defs = 0; + size->num_instruction_defs = 0; + size->max_instruction_defs = 0; + + size->max_func = 0; + size->max_ins = 0; + + size->bytecode_ready = 0; + size->cvt_ready = 0; + } + + + /* Initialize bytecode-related fields in the size object. */ + /* We do this only if bytecode interpretation is really needed. */ + static FT_Error + tt_size_init_bytecode( FT_Size ftsize, + FT_Bool pedantic ) + { + FT_Error error; + TT_Size size = (TT_Size)ftsize; + TT_Face face = (TT_Face)ftsize->face; + FT_Memory memory = face->root.memory; + FT_Int i; + + FT_UShort n_twilight; + TT_MaxProfile* maxp = &face->max_profile; + + + size->bytecode_ready = 1; + size->cvt_ready = 0; + + size->max_function_defs = maxp->maxFunctionDefs; + size->max_instruction_defs = maxp->maxInstructionDefs; + + size->num_function_defs = 0; + size->num_instruction_defs = 0; + + size->max_func = 0; + size->max_ins = 0; + + size->cvt_size = face->cvt_size; + size->storage_size = maxp->maxStorage; + + /* Set default metrics */ + { + TT_Size_Metrics* metrics = &size->ttmetrics; + + + metrics->rotated = FALSE; + metrics->stretched = FALSE; + + /* set default compensation (all 0) */ + for ( i = 0; i < 4; i++ ) + metrics->compensations[i] = 0; + } + + /* allocate function defs, instruction defs, cvt, and storage area */ + if ( FT_NEW_ARRAY( size->function_defs, size->max_function_defs ) || + FT_NEW_ARRAY( size->instruction_defs, size->max_instruction_defs ) || + FT_NEW_ARRAY( size->cvt, size->cvt_size ) || + FT_NEW_ARRAY( size->storage, size->storage_size ) ) + goto Exit; + + /* reserve twilight zone */ + n_twilight = maxp->maxTwilightPoints; + + /* there are 4 phantom points (do we need this?) */ + n_twilight += 4; + + error = tt_glyphzone_new( memory, n_twilight, 0, &size->twilight ); + if ( error ) + goto Exit; + + size->twilight.n_points = n_twilight; + + size->GS = tt_default_graphics_state; + + /* set `face->interpreter' according to the debug hook present */ + { + FT_Library library = face->root.driver->root.library; + + + face->interpreter = (TT_Interpreter) + library->debug_hooks[FT_DEBUG_HOOK_TRUETYPE]; + if ( !face->interpreter ) + face->interpreter = (TT_Interpreter)TT_RunIns; + } + + /* Fine, now run the font program! */ + error = tt_size_run_fpgm( size, pedantic ); + + Exit: + if ( error ) + tt_size_done_bytecode( ftsize ); + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + tt_size_ready_bytecode( TT_Size size, + FT_Bool pedantic ) + { + FT_Error error = TT_Err_Ok; + + + if ( !size->bytecode_ready ) + { + error = tt_size_init_bytecode( (FT_Size)size, pedantic ); + if ( error ) + goto Exit; + } + + /* rescale CVT when needed */ + if ( !size->cvt_ready ) + { + FT_UInt i; + TT_Face face = (TT_Face)size->root.face; + + + /* Scale the cvt values to the new ppem. */ + /* We use by default the y ppem to scale the CVT. */ + for ( i = 0; i < size->cvt_size; i++ ) + size->cvt[i] = FT_MulFix( face->cvt[i], size->ttmetrics.scale ); + + /* all twilight points are originally zero */ + for ( i = 0; i < (FT_UInt)size->twilight.n_points; i++ ) + { + size->twilight.org[i].x = 0; + size->twilight.org[i].y = 0; + size->twilight.cur[i].x = 0; + size->twilight.cur[i].y = 0; + } + + /* clear storage area */ + for ( i = 0; i < (FT_UInt)size->storage_size; i++ ) + size->storage[i] = 0; + + size->GS = tt_default_graphics_state; + + error = tt_size_run_prep( size, pedantic ); + if ( !error ) + size->cvt_ready = 1; + } + + Exit: + return error; + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + /*************************************************************************/ + /* */ + /* */ + /* tt_size_init */ + /* */ + /* */ + /* Initialize a new TrueType size object. */ + /* */ + /* */ + /* size :: A handle to the size object. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_size_init( FT_Size ttsize ) /* TT_Size */ + { + TT_Size size = (TT_Size)ttsize; + FT_Error error = TT_Err_Ok; + +#ifdef TT_USE_BYTECODE_INTERPRETER + size->bytecode_ready = 0; + size->cvt_ready = 0; +#endif + + size->ttmetrics.valid = FALSE; + size->strike_index = 0xFFFFFFFFUL; + + return error; + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_size_done */ + /* */ + /* */ + /* The TrueType size object finalizer. */ + /* */ + /* */ + /* size :: A handle to the target size object. */ + /* */ + FT_LOCAL_DEF( void ) + tt_size_done( FT_Size ttsize ) /* TT_Size */ + { + TT_Size size = (TT_Size)ttsize; + + +#ifdef TT_USE_BYTECODE_INTERPRETER + if ( size->bytecode_ready ) + tt_size_done_bytecode( ttsize ); +#endif + + size->ttmetrics.valid = FALSE; + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_size_reset */ + /* */ + /* */ + /* Reset a TrueType size when resolutions and character dimensions */ + /* have been changed. */ + /* */ + /* */ + /* size :: A handle to the target size object. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_size_reset( TT_Size size ) + { + TT_Face face; + FT_Error error = TT_Err_Ok; + FT_Size_Metrics* metrics; + + + size->ttmetrics.valid = FALSE; + + face = (TT_Face)size->root.face; + + metrics = &size->metrics; + + /* copy the result from base layer */ + *metrics = size->root.metrics; + + if ( metrics->x_ppem < 1 || metrics->y_ppem < 1 ) + return TT_Err_Invalid_PPem; + + /* This bit flag, if set, indicates that the ppems must be */ + /* rounded to integers. Nearly all TrueType fonts have this bit */ + /* set, as hinting won't work really well otherwise. */ + /* */ + if ( face->header.Flags & 8 ) + { + metrics->x_scale = FT_DivFix( metrics->x_ppem << 6, + face->root.units_per_EM ); + metrics->y_scale = FT_DivFix( metrics->y_ppem << 6, + face->root.units_per_EM ); + + metrics->ascender = + FT_PIX_ROUND( FT_MulFix( face->root.ascender, metrics->y_scale ) ); + metrics->descender = + FT_PIX_ROUND( FT_MulFix( face->root.descender, metrics->y_scale ) ); + metrics->height = + FT_PIX_ROUND( FT_MulFix( face->root.height, metrics->y_scale ) ); + metrics->max_advance = + FT_PIX_ROUND( FT_MulFix( face->root.max_advance_width, + metrics->x_scale ) ); + } + + /* compute new transformation */ + if ( metrics->x_ppem >= metrics->y_ppem ) + { + size->ttmetrics.scale = metrics->x_scale; + size->ttmetrics.ppem = metrics->x_ppem; + size->ttmetrics.x_ratio = 0x10000L; + size->ttmetrics.y_ratio = FT_MulDiv( metrics->y_ppem, + 0x10000L, + metrics->x_ppem ); + } + else + { + size->ttmetrics.scale = metrics->y_scale; + size->ttmetrics.ppem = metrics->y_ppem; + size->ttmetrics.x_ratio = FT_MulDiv( metrics->x_ppem, + 0x10000L, + metrics->y_ppem ); + size->ttmetrics.y_ratio = 0x10000L; + } + +#ifdef TT_USE_BYTECODE_INTERPRETER + size->cvt_ready = 0; +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + if ( !error ) + size->ttmetrics.valid = TRUE; + + return error; + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_driver_init */ + /* */ + /* */ + /* Initialize a given TrueType driver object. */ + /* */ + /* */ + /* driver :: A handle to the target driver object. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_driver_init( FT_Module ttdriver ) /* TT_Driver */ + { + +#ifdef TT_USE_BYTECODE_INTERPRETER + + TT_Driver driver = (TT_Driver)ttdriver; + + + if ( !TT_New_Context( driver ) ) + return TT_Err_Could_Not_Find_Context; + +#else + + FT_UNUSED( ttdriver ); + +#endif + + return TT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_driver_done */ + /* */ + /* */ + /* Finalize a given TrueType driver. */ + /* */ + /* */ + /* driver :: A handle to the target TrueType driver. */ + /* */ + FT_LOCAL_DEF( void ) + tt_driver_done( FT_Module ttdriver ) /* TT_Driver */ + { +#ifdef TT_USE_BYTECODE_INTERPRETER + TT_Driver driver = (TT_Driver)ttdriver; + + + /* destroy the execution context */ + if ( driver->context ) + { + TT_Done_Context( driver->context ); + driver->context = NULL; + } +#else + FT_UNUSED( ttdriver ); +#endif + + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_slot_init */ + /* */ + /* */ + /* Initialize a new slot object. */ + /* */ + /* */ + /* slot :: A handle to the slot object. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_slot_init( FT_GlyphSlot slot ) + { + return FT_GlyphLoader_CreateExtra( slot->internal->loader ); + } + + +/* END */ diff --git a/src/truetype/ttobjs.h b/src/truetype/ttobjs.h new file mode 100644 index 0000000..47e4129 --- /dev/null +++ b/src/truetype/ttobjs.h @@ -0,0 +1,435 @@ +/***************************************************************************/ +/* */ +/* ttobjs.h */ +/* */ +/* Objects manager (specification). */ +/* */ +/* Copyright 1996-2009, 2011-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTOBJS_H__ +#define __TTOBJS_H__ + + +#include +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Driver */ + /* */ + /* */ + /* A handle to a TrueType driver object. */ + /* */ + typedef struct TT_DriverRec_* TT_Driver; + + + /*************************************************************************/ + /* */ + /* */ + /* TT_Instance */ + /* */ + /* */ + /* A handle to a TrueType size object. */ + /* */ + typedef struct TT_SizeRec_* TT_Size; + + + /*************************************************************************/ + /* */ + /* */ + /* TT_GlyphSlot */ + /* */ + /* */ + /* A handle to a TrueType glyph slot object. */ + /* */ + /* */ + /* This is a direct typedef of FT_GlyphSlot, as there is nothing */ + /* specific about the TrueType glyph slot. */ + /* */ + typedef FT_GlyphSlot TT_GlyphSlot; + + + /*************************************************************************/ + /* */ + /* */ + /* TT_GraphicsState */ + /* */ + /* */ + /* The TrueType graphics state used during bytecode interpretation. */ + /* */ + typedef struct TT_GraphicsState_ + { + FT_UShort rp0; + FT_UShort rp1; + FT_UShort rp2; + + FT_UnitVector dualVector; + FT_UnitVector projVector; + FT_UnitVector freeVector; + +#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING + FT_Bool both_x_axis; +#endif + + FT_Long loop; + FT_F26Dot6 minimum_distance; + FT_Int round_state; + + FT_Bool auto_flip; + FT_F26Dot6 control_value_cutin; + FT_F26Dot6 single_width_cutin; + FT_F26Dot6 single_width_value; + FT_Short delta_base; + FT_Short delta_shift; + + FT_Byte instruct_control; + /* According to Greg Hitchcock from Microsoft, the `scan_control' */ + /* variable as documented in the TrueType specification is a 32-bit */ + /* integer; the high-word part holds the SCANTYPE value, the low-word */ + /* part the SCANCTRL value. We separate it into two fields. */ + FT_Bool scan_control; + FT_Int scan_type; + + FT_UShort gep0; + FT_UShort gep1; + FT_UShort gep2; + + } TT_GraphicsState; + + +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_LOCAL( void ) + tt_glyphzone_done( TT_GlyphZone zone ); + + FT_LOCAL( FT_Error ) + tt_glyphzone_new( FT_Memory memory, + FT_UShort maxPoints, + FT_Short maxContours, + TT_GlyphZone zone ); + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + + + /*************************************************************************/ + /* */ + /* EXECUTION SUBTABLES */ + /* */ + /* These sub-tables relate to instruction execution. */ + /* */ + /*************************************************************************/ + + +#define TT_MAX_CODE_RANGES 3 + + + /*************************************************************************/ + /* */ + /* There can only be 3 active code ranges at once: */ + /* - the Font Program */ + /* - the CVT Program */ + /* - a glyph's instructions set */ + /* */ + typedef enum TT_CodeRange_Tag_ + { + tt_coderange_none = 0, + tt_coderange_font, + tt_coderange_cvt, + tt_coderange_glyph + + } TT_CodeRange_Tag; + + + typedef struct TT_CodeRange_ + { + FT_Byte* base; + FT_ULong size; + + } TT_CodeRange; + + typedef TT_CodeRange TT_CodeRangeTable[TT_MAX_CODE_RANGES]; + + + /*************************************************************************/ + /* */ + /* Defines a function/instruction definition record. */ + /* */ + typedef struct TT_DefRecord_ + { + FT_Int range; /* in which code range is it located? */ + FT_Long start; /* where does it start? */ + FT_Long end; /* where does it end? */ + FT_UInt opc; /* function #, or instruction code */ + FT_Bool active; /* is it active? */ + + } TT_DefRecord, *TT_DefArray; + + + /*************************************************************************/ + /* */ + /* Subglyph transformation record. */ + /* */ + typedef struct TT_Transform_ + { + FT_Fixed xx, xy; /* transformation matrix coefficients */ + FT_Fixed yx, yy; + FT_F26Dot6 ox, oy; /* offsets */ + + } TT_Transform; + + + /*************************************************************************/ + /* */ + /* A note regarding non-squared pixels: */ + /* */ + /* (This text will probably go into some docs at some time; for now, it */ + /* is kept here to explain some definitions in the TT_Size_Metrics */ + /* record). */ + /* */ + /* The CVT is a one-dimensional array containing values that control */ + /* certain important characteristics in a font, like the height of all */ + /* capitals, all lowercase letter, default spacing or stem width/height. */ + /* */ + /* These values are found in FUnits in the font file, and must be scaled */ + /* to pixel coordinates before being used by the CVT and glyph programs. */ + /* Unfortunately, when using distinct x and y resolutions (or distinct x */ + /* and y pointsizes), there are two possible scalings. */ + /* */ + /* A first try was to implement a `lazy' scheme where all values were */ + /* scaled when first used. However, while some values are always used */ + /* in the same direction, some others are used under many different */ + /* circumstances and orientations. */ + /* */ + /* I have found a simpler way to do the same, and it even seems to work */ + /* in most of the cases: */ + /* */ + /* - All CVT values are scaled to the maximum ppem size. */ + /* */ + /* - When performing a read or write in the CVT, a ratio factor is used */ + /* to perform adequate scaling. Example: */ + /* */ + /* x_ppem = 14 */ + /* y_ppem = 10 */ + /* */ + /* We choose ppem = x_ppem = 14 as the CVT scaling size. All cvt */ + /* entries are scaled to it. */ + /* */ + /* x_ratio = 1.0 */ + /* y_ratio = y_ppem/ppem (< 1.0) */ + /* */ + /* We compute the current ratio like: */ + /* */ + /* - If projVector is horizontal, */ + /* ratio = x_ratio = 1.0 */ + /* */ + /* - if projVector is vertical, */ + /* ratio = y_ratio */ + /* */ + /* - else, */ + /* ratio = sqrt( (proj.x * x_ratio) ^ 2 + (proj.y * y_ratio) ^ 2 ) */ + /* */ + /* Reading a cvt value returns */ + /* ratio * cvt[index] */ + /* */ + /* Writing a cvt value in pixels: */ + /* cvt[index] / ratio */ + /* */ + /* The current ppem is simply */ + /* ratio * ppem */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* Metrics used by the TrueType size and context objects. */ + /* */ + typedef struct TT_Size_Metrics_ + { + /* for non-square pixels */ + FT_Long x_ratio; + FT_Long y_ratio; + + FT_UShort ppem; /* maximum ppem size */ + FT_Long ratio; /* current ratio */ + FT_Fixed scale; + + FT_F26Dot6 compensations[4]; /* device-specific compensations */ + + FT_Bool valid; + + FT_Bool rotated; /* `is the glyph rotated?'-flag */ + FT_Bool stretched; /* `is the glyph stretched?'-flag */ + + } TT_Size_Metrics; + + + /*************************************************************************/ + /* */ + /* TrueType size class. */ + /* */ + typedef struct TT_SizeRec_ + { + FT_SizeRec root; + + /* we have our own copy of metrics so that we can modify */ + /* it without affecting auto-hinting (when used) */ + FT_Size_Metrics metrics; + + TT_Size_Metrics ttmetrics; + + FT_ULong strike_index; /* 0xFFFFFFFF to indicate invalid */ + +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_UInt num_function_defs; /* number of function definitions */ + FT_UInt max_function_defs; + TT_DefArray function_defs; /* table of function definitions */ + + FT_UInt num_instruction_defs; /* number of ins. definitions */ + FT_UInt max_instruction_defs; + TT_DefArray instruction_defs; /* table of ins. definitions */ + + FT_UInt max_func; + FT_UInt max_ins; + + TT_CodeRangeTable codeRangeTable; + + TT_GraphicsState GS; + + FT_ULong cvt_size; /* the scaled control value table */ + FT_Long* cvt; + + FT_UShort storage_size; /* The storage area is now part of */ + FT_Long* storage; /* the instance */ + + TT_GlyphZoneRec twilight; /* The instance's twilight zone */ + + /* debugging variables */ + + /* When using the debugger, we must keep the */ + /* execution context tied to the instance */ + /* object rather than asking it on demand. */ + + FT_Bool debug; + TT_ExecContext context; + + FT_Bool bytecode_ready; + FT_Bool cvt_ready; + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + } TT_SizeRec; + + + /*************************************************************************/ + /* */ + /* TrueType driver class. */ + /* */ + typedef struct TT_DriverRec_ + { + FT_DriverRec root; + TT_ExecContext context; /* execution context */ + TT_GlyphZoneRec zone; /* glyph loader points zone */ + + void* extension_component; + + } TT_DriverRec; + + + /* Note: All of the functions below (except tt_size_reset()) are used */ + /* as function pointers in a FT_Driver_ClassRec. Therefore their */ + /* parameters are of types FT_Face, FT_Size, etc., rather than TT_Face, */ + /* TT_Size, etc., so that the compiler can confirm that the types and */ + /* number of parameters are correct. In all cases the FT_xxx types are */ + /* cast to their TT_xxx counterparts inside the functions since FreeType */ + /* will always use the TT driver to create them. */ + + + /*************************************************************************/ + /* */ + /* Face functions */ + /* */ + FT_LOCAL( FT_Error ) + tt_face_init( FT_Stream stream, + FT_Face ttface, /* TT_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( void ) + tt_face_done( FT_Face ttface ); /* TT_Face */ + + + /*************************************************************************/ + /* */ + /* Size functions */ + /* */ + FT_LOCAL( FT_Error ) + tt_size_init( FT_Size ttsize ); /* TT_Size */ + + FT_LOCAL( void ) + tt_size_done( FT_Size ttsize ); /* TT_Size */ + +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_LOCAL( FT_Error ) + tt_size_run_fpgm( TT_Size size, + FT_Bool pedantic ); + + FT_LOCAL( FT_Error ) + tt_size_run_prep( TT_Size size, + FT_Bool pedantic ); + + FT_LOCAL( FT_Error ) + tt_size_ready_bytecode( TT_Size size, + FT_Bool pedantic ); + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + + FT_LOCAL( FT_Error ) + tt_size_reset( TT_Size size ); + + + /*************************************************************************/ + /* */ + /* Driver functions */ + /* */ + FT_LOCAL( FT_Error ) + tt_driver_init( FT_Module ttdriver ); /* TT_Driver */ + + FT_LOCAL( void ) + tt_driver_done( FT_Module ttdriver ); /* TT_Driver */ + + + /*************************************************************************/ + /* */ + /* Slot functions */ + /* */ + FT_LOCAL( FT_Error ) + tt_slot_init( FT_GlyphSlot slot ); + + +FT_END_HEADER + +#endif /* __TTOBJS_H__ */ + + +/* END */ diff --git a/src/truetype/ttpic.c b/src/truetype/ttpic.c new file mode 100644 index 0000000..65ca845 --- /dev/null +++ b/src/truetype/ttpic.c @@ -0,0 +1,100 @@ +/***************************************************************************/ +/* */ +/* ttpic.c */ +/* */ +/* The FreeType position independent code services for truetype module. */ +/* */ +/* Copyright 2009, 2010 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include +#include FT_FREETYPE_H +#include FT_INTERNAL_OBJECTS_H +#include "ttpic.h" +#include "tterrors.h" + +#ifdef FT_CONFIG_OPTION_PIC + + /* forward declaration of PIC init functions from ttdriver.c */ + FT_Error + FT_Create_Class_tt_services( FT_Library library, + FT_ServiceDescRec** output_class ); + + void + FT_Destroy_Class_tt_services( FT_Library library, + FT_ServiceDescRec* clazz ); + + void + FT_Init_Class_tt_service_gx_multi_masters( + FT_Service_MultiMastersRec* sv_mm ); + + void + FT_Init_Class_tt_service_truetype_glyf( + FT_Service_TTGlyfRec* sv_ttglyf ); + + void + tt_driver_class_pic_free( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Memory memory = library->memory; + + + if ( pic_container->truetype ) + { + TTModulePIC* container = (TTModulePIC*)pic_container->truetype; + + + if ( container->tt_services ) + FT_Destroy_Class_tt_services( library, container->tt_services ); + container->tt_services = NULL; + FT_FREE( container ); + pic_container->truetype = NULL; + } + } + + + FT_Error + tt_driver_class_pic_init( FT_Library library ) + { + FT_PIC_Container* pic_container = &library->pic_container; + FT_Error error = TT_Err_Ok; + TTModulePIC* container; + FT_Memory memory = library->memory; + + + /* allocate pointer, clear and set global container pointer */ + if ( FT_ALLOC ( container, sizeof ( *container ) ) ) + return error; + FT_MEM_SET( container, 0, sizeof ( *container ) ); + pic_container->truetype = container; + + /* initialize pointer table - this is how the module usually expects this data */ + error = FT_Create_Class_tt_services( library, + &container->tt_services ); + if ( error ) + goto Exit; +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_Init_Class_tt_service_gx_multi_masters( + &container->tt_service_gx_multi_masters ); +#endif + FT_Init_Class_tt_service_truetype_glyf( + &container->tt_service_truetype_glyf ); +Exit: + if ( error ) + tt_driver_class_pic_free( library ); + return error; + } + +#endif /* FT_CONFIG_OPTION_PIC */ + + +/* END */ diff --git a/src/truetype/ttpic.h b/src/truetype/ttpic.h new file mode 100644 index 0000000..48f43a5 --- /dev/null +++ b/src/truetype/ttpic.h @@ -0,0 +1,66 @@ +/***************************************************************************/ +/* */ +/* ttpic.h */ +/* */ +/* The FreeType position independent code services for truetype module. */ +/* */ +/* Copyright 2009 by */ +/* Oran Agra and Mickey Gabel. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTPIC_H__ +#define __TTPIC_H__ + + +FT_BEGIN_HEADER + +#ifndef FT_CONFIG_OPTION_PIC +#define FT_TT_SERVICES_GET tt_services +#define FT_TT_SERVICE_GX_MULTI_MASTERS_GET tt_service_gx_multi_masters +#define FT_TT_SERVICE_TRUETYPE_GLYF_GET tt_service_truetype_glyf + +#else /* FT_CONFIG_OPTION_PIC */ + +#include FT_MULTIPLE_MASTERS_H +#include FT_SERVICE_MULTIPLE_MASTERS_H +#include FT_SERVICE_TRUETYPE_GLYF_H + + typedef struct TTModulePIC_ + { + FT_ServiceDescRec* tt_services; +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_Service_MultiMastersRec tt_service_gx_multi_masters; +#endif + FT_Service_TTGlyfRec tt_service_truetype_glyf; + } TTModulePIC; + +#define GET_PIC(lib) ((TTModulePIC*)((lib)->pic_container.truetype)) +#define FT_TT_SERVICES_GET (GET_PIC(library)->tt_services) +#define FT_TT_SERVICE_GX_MULTI_MASTERS_GET (GET_PIC(library)->tt_service_gx_multi_masters) +#define FT_TT_SERVICE_TRUETYPE_GLYF_GET (GET_PIC(library)->tt_service_truetype_glyf) + + /* see ttpic.c for the implementation */ + void + tt_driver_class_pic_free( FT_Library library ); + + FT_Error + tt_driver_class_pic_init( FT_Library library ); + +#endif /* FT_CONFIG_OPTION_PIC */ + + /* */ + +FT_END_HEADER + +#endif /* __TTPIC_H__ */ + + +/* END */ diff --git a/src/truetype/ttpload.c b/src/truetype/ttpload.c new file mode 100644 index 0000000..bb6005d --- /dev/null +++ b/src/truetype/ttpload.c @@ -0,0 +1,599 @@ +/***************************************************************************/ +/* */ +/* ttpload.c */ +/* */ +/* TrueType-specific tables loader (body). */ +/* */ +/* Copyright 1996-2002, 2004-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TAGS_H + +#include "ttpload.h" + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include "ttgxvar.h" +#endif + +#include "tterrors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_ttpload + + + /*************************************************************************/ + /* */ + /* */ + /* tt_face_load_loca */ + /* */ + /* */ + /* Load the locations table. */ + /* */ + /* */ + /* face :: A handle to the target face object. */ + /* */ + /* */ + /* stream :: The input stream. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_loca( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + FT_ULong table_len; + FT_Int shift; + + + /* we need the size of the `glyf' table for malformed `loca' tables */ + error = face->goto_table( face, TTAG_glyf, stream, &face->glyf_len ); + + /* it is possible that a font doesn't have a glyf table at all */ + /* or its size is zero */ + if ( error == TT_Err_Table_Missing ) + face->glyf_len = 0; + else if ( error ) + goto Exit; + + FT_TRACE2(( "Locations " )); + error = face->goto_table( face, TTAG_loca, stream, &table_len ); + if ( error ) + { + error = TT_Err_Locations_Missing; + goto Exit; + } + + if ( face->header.Index_To_Loc_Format != 0 ) + { + shift = 2; + + if ( table_len >= 0x40000L ) + { + FT_TRACE2(( "table too large\n" )); + error = TT_Err_Invalid_Table; + goto Exit; + } + face->num_locations = table_len >> shift; + } + else + { + shift = 1; + + if ( table_len >= 0x20000L ) + { + FT_TRACE2(( "table too large\n" )); + error = TT_Err_Invalid_Table; + goto Exit; + } + face->num_locations = table_len >> shift; + } + + if ( face->num_locations != (FT_ULong)face->root.num_glyphs + 1 ) + { + FT_TRACE2(( "glyph count mismatch! loca: %d, maxp: %d\n", + face->num_locations - 1, face->root.num_glyphs )); + + /* we only handle the case where `maxp' gives a larger value */ + if ( face->num_locations <= (FT_ULong)face->root.num_glyphs ) + { + FT_Long new_loca_len = + ( (FT_Long)( face->root.num_glyphs ) + 1 ) << shift; + + TT_Table entry = face->dir_tables; + TT_Table limit = entry + face->num_tables; + + FT_Long pos = FT_Stream_Pos( stream ); + FT_Long dist = 0x7FFFFFFFL; + + + /* compute the distance to next table in font file */ + for ( ; entry < limit; entry++ ) + { + FT_Long diff = entry->Offset - pos; + + + if ( diff > 0 && diff < dist ) + dist = diff; + } + + if ( entry == limit ) + { + /* `loca' is the last table */ + dist = stream->size - pos; + } + + if ( new_loca_len <= dist ) + { + face->num_locations = face->root.num_glyphs + 1; + table_len = new_loca_len; + + FT_TRACE2(( "adjusting num_locations to %d\n", + face->num_locations )); + } + } + } + + /* + * Extract the frame. We don't need to decompress it since + * we are able to parse it directly. + */ + if ( FT_FRAME_EXTRACT( table_len, face->glyph_locations ) ) + goto Exit; + + FT_TRACE2(( "loaded\n" )); + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_ULong ) + tt_face_get_location( TT_Face face, + FT_UInt gindex, + FT_UInt *asize ) + { + FT_ULong pos1, pos2; + FT_Byte* p; + FT_Byte* p_limit; + + + pos1 = pos2 = 0; + + if ( gindex < face->num_locations ) + { + if ( face->header.Index_To_Loc_Format != 0 ) + { + p = face->glyph_locations + gindex * 4; + p_limit = face->glyph_locations + face->num_locations * 4; + + pos1 = FT_NEXT_ULONG( p ); + pos2 = pos1; + + if ( p + 4 <= p_limit ) + pos2 = FT_NEXT_ULONG( p ); + } + else + { + p = face->glyph_locations + gindex * 2; + p_limit = face->glyph_locations + face->num_locations * 2; + + pos1 = FT_NEXT_USHORT( p ); + pos2 = pos1; + + if ( p + 2 <= p_limit ) + pos2 = FT_NEXT_USHORT( p ); + + pos1 <<= 1; + pos2 <<= 1; + } + } + + /* Check broken location data */ + if ( pos1 > face->glyf_len ) + { + FT_TRACE1(( "tt_face_get_location:" + " too large offset=0x%08lx found for gid=0x%04lx," + " exceeding the end of glyf table (0x%08lx)\n", + pos1, gindex, face->glyf_len )); + *asize = 0; + return 0; + } + + if ( pos2 > face->glyf_len ) + { + FT_TRACE1(( "tt_face_get_location:" + " too large offset=0x%08lx found for gid=0x%04lx," + " truncate at the end of glyf table (0x%08lx)\n", + pos2, gindex + 1, face->glyf_len )); + pos2 = face->glyf_len; + } + + /* The `loca' table must be ordered; it refers to the length of */ + /* an entry as the difference between the current and the next */ + /* position. However, there do exist (malformed) fonts which */ + /* don't obey this rule, so we are only able to provide an */ + /* upper bound for the size. */ + /* */ + /* We get (intentionally) a wrong, non-zero result in case the */ + /* `glyf' table is missing. */ + if ( pos2 >= pos1 ) + *asize = (FT_UInt)( pos2 - pos1 ); + else + *asize = (FT_UInt)( face->glyf_len - pos1 ); + + return pos1; + } + + + FT_LOCAL_DEF( void ) + tt_face_done_loca( TT_Face face ) + { + FT_Stream stream = face->root.stream; + + + FT_FRAME_RELEASE( face->glyph_locations ); + face->num_locations = 0; + } + + + + /*************************************************************************/ + /* */ + /* */ + /* tt_face_load_cvt */ + /* */ + /* */ + /* Load the control value table into a face object. */ + /* */ + /* */ + /* face :: A handle to the target face object. */ + /* */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_cvt( TT_Face face, + FT_Stream stream ) + { +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_Error error; + FT_Memory memory = stream->memory; + FT_ULong table_len; + + + FT_TRACE2(( "CVT " )); + + error = face->goto_table( face, TTAG_cvt, stream, &table_len ); + if ( error ) + { + FT_TRACE2(( "is missing\n" )); + + face->cvt_size = 0; + face->cvt = NULL; + error = TT_Err_Ok; + + goto Exit; + } + + face->cvt_size = table_len / 2; + + if ( FT_NEW_ARRAY( face->cvt, face->cvt_size ) ) + goto Exit; + + if ( FT_FRAME_ENTER( face->cvt_size * 2L ) ) + goto Exit; + + { + FT_Short* cur = face->cvt; + FT_Short* limit = cur + face->cvt_size; + + + for ( ; cur < limit; cur++ ) + *cur = FT_GET_SHORT(); + } + + FT_FRAME_EXIT(); + FT_TRACE2(( "loaded\n" )); + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + if ( face->doblend ) + error = tt_face_vary_cvt( face, stream ); +#endif + + Exit: + return error; + +#else /* !TT_USE_BYTECODE_INTERPRETER */ + + FT_UNUSED( face ); + FT_UNUSED( stream ); + + return TT_Err_Ok; + +#endif + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_face_load_fpgm */ + /* */ + /* */ + /* Load the font program. */ + /* */ + /* */ + /* face :: A handle to the target face object. */ + /* */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_fpgm( TT_Face face, + FT_Stream stream ) + { +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_Error error; + FT_ULong table_len; + + + FT_TRACE2(( "Font program " )); + + /* The font program is optional */ + error = face->goto_table( face, TTAG_fpgm, stream, &table_len ); + if ( error ) + { + face->font_program = NULL; + face->font_program_size = 0; + error = TT_Err_Ok; + + FT_TRACE2(( "is missing\n" )); + } + else + { + face->font_program_size = table_len; + if ( FT_FRAME_EXTRACT( table_len, face->font_program ) ) + goto Exit; + + FT_TRACE2(( "loaded, %12d bytes\n", face->font_program_size )); + } + + Exit: + return error; + +#else /* !TT_USE_BYTECODE_INTERPRETER */ + + FT_UNUSED( face ); + FT_UNUSED( stream ); + + return TT_Err_Ok; + +#endif + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_face_load_prep */ + /* */ + /* */ + /* Load the cvt program. */ + /* */ + /* */ + /* face :: A handle to the target face object. */ + /* */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + tt_face_load_prep( TT_Face face, + FT_Stream stream ) + { +#ifdef TT_USE_BYTECODE_INTERPRETER + + FT_Error error; + FT_ULong table_len; + + + FT_TRACE2(( "Prep program " )); + + error = face->goto_table( face, TTAG_prep, stream, &table_len ); + if ( error ) + { + face->cvt_program = NULL; + face->cvt_program_size = 0; + error = TT_Err_Ok; + + FT_TRACE2(( "is missing\n" )); + } + else + { + face->cvt_program_size = table_len; + if ( FT_FRAME_EXTRACT( table_len, face->cvt_program ) ) + goto Exit; + + FT_TRACE2(( "loaded, %12d bytes\n", face->cvt_program_size )); + } + + Exit: + return error; + +#else /* !TT_USE_BYTECODE_INTERPRETER */ + + FT_UNUSED( face ); + FT_UNUSED( stream ); + + return TT_Err_Ok; + +#endif + } + + + /*************************************************************************/ + /* */ + /* */ + /* tt_face_load_hdmx */ + /* */ + /* */ + /* Load the `hdmx' table into the face object. */ + /* */ + /* */ + /* face :: A handle to the target face object. */ + /* */ + /* stream :: A handle to the input stream. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + + FT_LOCAL_DEF( FT_Error ) + tt_face_load_hdmx( TT_Face face, + FT_Stream stream ) + { + FT_Error error; + FT_Memory memory = stream->memory; + FT_UInt version, nn, num_records; + FT_ULong table_size, record_size; + FT_Byte* p; + FT_Byte* limit; + + + /* this table is optional */ + error = face->goto_table( face, TTAG_hdmx, stream, &table_size ); + if ( error || table_size < 8 ) + return TT_Err_Ok; + + if ( FT_FRAME_EXTRACT( table_size, face->hdmx_table ) ) + goto Exit; + + p = face->hdmx_table; + limit = p + table_size; + + version = FT_NEXT_USHORT( p ); + num_records = FT_NEXT_USHORT( p ); + record_size = FT_NEXT_ULONG( p ); + + /* The maximum number of bytes in an hdmx device record is the */ + /* maximum number of glyphs + 2; this is 0xFFFF + 2; this is */ + /* the reason why `record_size' is a long (which we read as */ + /* unsigned long for convenience). In practice, two bytes */ + /* sufficient to hold the size value. */ + /* */ + /* There are at least two fonts, HANNOM-A and HANNOM-B version */ + /* 2.0 (2005), which get this wrong: The upper two bytes of */ + /* the size value are set to 0xFF instead of 0x00. We catch */ + /* and fix this. */ + + if ( record_size >= 0xFFFF0000UL ) + record_size &= 0xFFFFU; + + /* The limit for `num_records' is a heuristic value. */ + + if ( version != 0 || num_records > 255 || record_size > 0x10001L ) + { + error = TT_Err_Invalid_File_Format; + goto Fail; + } + + if ( FT_NEW_ARRAY( face->hdmx_record_sizes, num_records ) ) + goto Fail; + + for ( nn = 0; nn < num_records; nn++ ) + { + if ( p + record_size > limit ) + break; + + face->hdmx_record_sizes[nn] = p[0]; + p += record_size; + } + + face->hdmx_record_count = nn; + face->hdmx_table_size = table_size; + face->hdmx_record_size = record_size; + + Exit: + return error; + + Fail: + FT_FRAME_RELEASE( face->hdmx_table ); + face->hdmx_table_size = 0; + goto Exit; + } + + + FT_LOCAL_DEF( void ) + tt_face_free_hdmx( TT_Face face ) + { + FT_Stream stream = face->root.stream; + FT_Memory memory = stream->memory; + + + FT_FREE( face->hdmx_record_sizes ); + FT_FRAME_RELEASE( face->hdmx_table ); + } + + + /*************************************************************************/ + /* */ + /* Return the advance width table for a given pixel size if it is found */ + /* in the font's `hdmx' table (if any). */ + /* */ + FT_LOCAL_DEF( FT_Byte* ) + tt_face_get_device_metrics( TT_Face face, + FT_UInt ppem, + FT_UInt gindex ) + { + FT_UInt nn; + FT_Byte* result = NULL; + FT_ULong record_size = face->hdmx_record_size; + FT_Byte* record = face->hdmx_table + 8; + + + for ( nn = 0; nn < face->hdmx_record_count; nn++ ) + if ( face->hdmx_record_sizes[nn] == ppem ) + { + gindex += 2; + if ( gindex < record_size ) + result = record + nn * record_size + gindex; + break; + } + + return result; + } + + +/* END */ diff --git a/src/truetype/ttpload.h b/src/truetype/ttpload.h new file mode 100644 index 0000000..f61ac07 --- /dev/null +++ b/src/truetype/ttpload.h @@ -0,0 +1,75 @@ +/***************************************************************************/ +/* */ +/* ttpload.h */ +/* */ +/* TrueType-specific tables loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2005, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __TTPLOAD_H__ +#define __TTPLOAD_H__ + + +#include +#include FT_INTERNAL_TRUETYPE_TYPES_H + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + tt_face_load_loca( TT_Face face, + FT_Stream stream ); + + FT_LOCAL( FT_ULong ) + tt_face_get_location( TT_Face face, + FT_UInt gindex, + FT_UInt *asize ); + + FT_LOCAL( void ) + tt_face_done_loca( TT_Face face ); + + FT_LOCAL( FT_Error ) + tt_face_load_cvt( TT_Face face, + FT_Stream stream ); + + FT_LOCAL( FT_Error ) + tt_face_load_fpgm( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_prep( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( FT_Error ) + tt_face_load_hdmx( TT_Face face, + FT_Stream stream ); + + + FT_LOCAL( void ) + tt_face_free_hdmx( TT_Face face ); + + + FT_LOCAL( FT_Byte* ) + tt_face_get_device_metrics( TT_Face face, + FT_UInt ppem, + FT_UInt gindex ); + +FT_END_HEADER + +#endif /* __TTPLOAD_H__ */ + + +/* END */ diff --git a/src/type1/Jamfile b/src/type1/Jamfile new file mode 100644 index 0000000..8e366ba --- /dev/null +++ b/src/type1/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/type1 Jamfile +# +# Copyright 2001 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) type1 ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = t1afm t1driver t1objs t1load t1gload t1parse ; + } + else + { + _sources = type1 ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/type1 Jamfile diff --git a/src/type1/module.mk b/src/type1/module.mk new file mode 100644 index 0000000..ade0210 --- /dev/null +++ b/src/type1/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 Type1 module definition +# + + +# Copyright 1996-2000, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += TYPE1_DRIVER + +define TYPE1_DRIVER +$(OPEN_DRIVER) FT_Driver_ClassRec, t1_driver_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)type1 $(ECHO_DRIVER_DESC)Postscript font files with extension *.pfa or *.pfb$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/type1/rules.mk b/src/type1/rules.mk new file mode 100644 index 0000000..15087b0 --- /dev/null +++ b/src/type1/rules.mk @@ -0,0 +1,73 @@ +# +# FreeType 2 Type1 driver configuration rules +# + + +# Copyright 1996-2000, 2001, 2003 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Type1 driver directory +# +T1_DIR := $(SRC_DIR)/type1 + + +# compilation flags for the driver +# +T1_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(T1_DIR)) + + +# Type1 driver sources (i.e., C files) +# +T1_DRV_SRC := $(T1_DIR)/t1parse.c \ + $(T1_DIR)/t1load.c \ + $(T1_DIR)/t1driver.c \ + $(T1_DIR)/t1afm.c \ + $(T1_DIR)/t1gload.c \ + $(T1_DIR)/t1objs.c + +# Type1 driver headers +# +T1_DRV_H := $(T1_DRV_SRC:%.c=%.h) \ + $(T1_DIR)/t1tokens.h \ + $(T1_DIR)/t1errors.h + + +# Type1 driver object(s) +# +# T1_DRV_OBJ_M is used during `multi' builds +# T1_DRV_OBJ_S is used during `single' builds +# +T1_DRV_OBJ_M := $(T1_DRV_SRC:$(T1_DIR)/%.c=$(OBJ_DIR)/%.$O) +T1_DRV_OBJ_S := $(OBJ_DIR)/type1.$O + +# Type1 driver source file for single build +# +T1_DRV_SRC_S := $(T1_DIR)/type1.c + + +# Type1 driver - single object +# +$(T1_DRV_OBJ_S): $(T1_DRV_SRC_S) $(T1_DRV_SRC) $(FREETYPE_H) $(T1_DRV_H) + $(T1_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(T1_DRV_SRC_S)) + + +# Type1 driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(T1_DIR)/%.c $(FREETYPE_H) $(T1_DRV_H) + $(T1_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(T1_DRV_OBJ_S) +DRV_OBJS_M += $(T1_DRV_OBJ_M) + + +# EOF diff --git a/src/type1/t1afm.c b/src/type1/t1afm.c new file mode 100644 index 0000000..1fff15d --- /dev/null +++ b/src/type1/t1afm.c @@ -0,0 +1,396 @@ +/***************************************************************************/ +/* */ +/* t1afm.c */ +/* */ +/* AFM support for Type 1 fonts (body). */ +/* */ +/* Copyright 1996-2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include +#include "t1afm.h" +#include "t1errors.h" +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1afm + + + FT_LOCAL_DEF( void ) + T1_Done_Metrics( FT_Memory memory, + AFM_FontInfo fi ) + { + FT_FREE( fi->KernPairs ); + fi->NumKernPair = 0; + + FT_FREE( fi->TrackKerns ); + fi->NumTrackKern = 0; + + FT_FREE( fi ); + } + + + /* read a glyph name and return the equivalent glyph index */ + static FT_Int + t1_get_index( const char* name, + FT_Offset len, + void* user_data ) + { + T1_Font type1 = (T1_Font)user_data; + FT_Int n; + + + /* PS string/name length must be < 16-bit */ + if ( len > 0xFFFFU ) + return 0; + + for ( n = 0; n < type1->num_glyphs; n++ ) + { + char* gname = (char*)type1->glyph_names[n]; + + + if ( gname && gname[0] == name[0] && + ft_strlen( gname ) == len && + ft_strncmp( gname, name, len ) == 0 ) + return n; + } + + return 0; + } + + +#undef KERN_INDEX +#define KERN_INDEX( g1, g2 ) ( ( (FT_ULong)(g1) << 16 ) | (g2) ) + + + /* compare two kerning pairs */ + FT_CALLBACK_DEF( int ) + compare_kern_pairs( const void* a, + const void* b ) + { + AFM_KernPair pair1 = (AFM_KernPair)a; + AFM_KernPair pair2 = (AFM_KernPair)b; + + FT_ULong index1 = KERN_INDEX( pair1->index1, pair1->index2 ); + FT_ULong index2 = KERN_INDEX( pair2->index1, pair2->index2 ); + + + if ( index1 > index2 ) + return 1; + else if ( index1 < index2 ) + return -1; + else + return 0; + } + + + /* parse a PFM file -- for now, only read the kerning pairs */ + static FT_Error + T1_Read_PFM( FT_Face t1_face, + FT_Stream stream, + AFM_FontInfo fi ) + { + FT_Error error = T1_Err_Ok; + FT_Memory memory = stream->memory; + FT_Byte* start; + FT_Byte* limit; + FT_Byte* p; + AFM_KernPair kp; + FT_Int width_table_length; + FT_CharMap oldcharmap; + FT_CharMap charmap; + FT_Int n; + + + start = (FT_Byte*)stream->cursor; + limit = (FT_Byte*)stream->limit; + p = start; + + /* Figure out how long the width table is. */ + /* This info is a little-endian short at offset 99. */ + p = start + 99; + if ( p + 2 > limit ) + { + error = T1_Err_Unknown_File_Format; + goto Exit; + } + width_table_length = FT_PEEK_USHORT_LE( p ); + + p += 18 + width_table_length; + if ( p + 0x12 > limit || FT_PEEK_USHORT_LE( p ) < 0x12 ) + /* extension table is probably optional */ + goto Exit; + + /* Kerning offset is 14 bytes from start of extensions table. */ + p += 14; + p = start + FT_PEEK_ULONG_LE( p ); + + if ( p == start ) + /* zero offset means no table */ + goto Exit; + + if ( p + 2 > limit ) + { + error = T1_Err_Unknown_File_Format; + goto Exit; + } + + fi->NumKernPair = FT_PEEK_USHORT_LE( p ); + p += 2; + if ( p + 4 * fi->NumKernPair > limit ) + { + error = T1_Err_Unknown_File_Format; + goto Exit; + } + + /* Actually, kerning pairs are simply optional! */ + if ( fi->NumKernPair == 0 ) + goto Exit; + + /* allocate the pairs */ + if ( FT_QNEW_ARRAY( fi->KernPairs, fi->NumKernPair ) ) + goto Exit; + + /* now, read each kern pair */ + kp = fi->KernPairs; + limit = p + 4 * fi->NumKernPair; + + /* PFM kerning data are stored by encoding rather than glyph index, */ + /* so find the PostScript charmap of this font and install it */ + /* temporarily. If we find no PostScript charmap, then just use */ + /* the default and hope it is the right one. */ + oldcharmap = t1_face->charmap; + charmap = NULL; + + for ( n = 0; n < t1_face->num_charmaps; n++ ) + { + charmap = t1_face->charmaps[n]; + /* check against PostScript pseudo platform */ + if ( charmap->platform_id == 7 ) + { + error = FT_Set_Charmap( t1_face, charmap ); + if ( error ) + goto Exit; + break; + } + } + + /* Kerning info is stored as: */ + /* */ + /* encoding of first glyph (1 byte) */ + /* encoding of second glyph (1 byte) */ + /* offset (little-endian short) */ + for ( ; p < limit ; p += 4 ) + { + kp->index1 = FT_Get_Char_Index( t1_face, p[0] ); + kp->index2 = FT_Get_Char_Index( t1_face, p[1] ); + + kp->x = (FT_Int)FT_PEEK_SHORT_LE(p + 2); + kp->y = 0; + + kp++; + } + + if ( oldcharmap != NULL ) + error = FT_Set_Charmap( t1_face, oldcharmap ); + if ( error ) + goto Exit; + + /* now, sort the kern pairs according to their glyph indices */ + ft_qsort( fi->KernPairs, fi->NumKernPair, sizeof ( AFM_KernPairRec ), + compare_kern_pairs ); + + Exit: + if ( error ) + { + FT_FREE( fi->KernPairs ); + fi->NumKernPair = 0; + } + + return error; + } + + + /* parse a metrics file -- either AFM or PFM depending on what */ + /* it turns out to be */ + FT_LOCAL_DEF( FT_Error ) + T1_Read_Metrics( FT_Face t1_face, + FT_Stream stream ) + { + PSAux_Service psaux; + FT_Memory memory = stream->memory; + AFM_ParserRec parser; + AFM_FontInfo fi = NULL; + FT_Error error = T1_Err_Unknown_File_Format; + T1_Font t1_font = &( (T1_Face)t1_face )->type1; + + + if ( FT_NEW( fi ) || + FT_FRAME_ENTER( stream->size ) ) + goto Exit; + + fi->FontBBox = t1_font->font_bbox; + fi->Ascender = t1_font->font_bbox.yMax; + fi->Descender = t1_font->font_bbox.yMin; + + psaux = (PSAux_Service)( (T1_Face)t1_face )->psaux; + if ( psaux->afm_parser_funcs ) + { + error = psaux->afm_parser_funcs->init( &parser, + stream->memory, + stream->cursor, + stream->limit ); + + if ( !error ) + { + parser.FontInfo = fi; + parser.get_index = t1_get_index; + parser.user_data = t1_font; + + error = psaux->afm_parser_funcs->parse( &parser ); + psaux->afm_parser_funcs->done( &parser ); + } + } + + if ( error == T1_Err_Unknown_File_Format ) + { + FT_Byte* start = stream->cursor; + + + /* MS Windows allows versions up to 0x3FF without complaining */ + if ( stream->size > 6 && + start[1] < 4 && + FT_PEEK_ULONG_LE( start + 2 ) == stream->size ) + error = T1_Read_PFM( t1_face, stream, fi ); + } + + if ( !error ) + { + t1_font->font_bbox = fi->FontBBox; + + t1_face->bbox.xMin = fi->FontBBox.xMin >> 16; + t1_face->bbox.yMin = fi->FontBBox.yMin >> 16; + /* no `U' suffix here to 0xFFFF! */ + t1_face->bbox.xMax = ( fi->FontBBox.xMax + 0xFFFF ) >> 16; + t1_face->bbox.yMax = ( fi->FontBBox.yMax + 0xFFFF ) >> 16; + + /* no `U' suffix here to 0x8000! */ + t1_face->ascender = (FT_Short)( ( fi->Ascender + 0x8000 ) >> 16 ); + t1_face->descender = (FT_Short)( ( fi->Descender + 0x8000 ) >> 16 ); + + if ( fi->NumKernPair ) + { + t1_face->face_flags |= FT_FACE_FLAG_KERNING; + ( (T1_Face)t1_face )->afm_data = fi; + fi = NULL; + } + } + + FT_FRAME_EXIT(); + + Exit: + if ( fi != NULL ) + T1_Done_Metrics( memory, fi ); + + return error; + } + + + /* find the kerning for a given glyph pair */ + FT_LOCAL_DEF( void ) + T1_Get_Kerning( AFM_FontInfo fi, + FT_UInt glyph1, + FT_UInt glyph2, + FT_Vector* kerning ) + { + AFM_KernPair min, mid, max; + FT_ULong idx = KERN_INDEX( glyph1, glyph2 ); + + + /* simple binary search */ + min = fi->KernPairs; + max = min + fi->NumKernPair - 1; + + while ( min <= max ) + { + FT_ULong midi; + + + mid = min + ( max - min ) / 2; + midi = KERN_INDEX( mid->index1, mid->index2 ); + + if ( midi == idx ) + { + kerning->x = mid->x; + kerning->y = mid->y; + + return; + } + + if ( midi < idx ) + min = mid + 1; + else + max = mid - 1; + } + + kerning->x = 0; + kerning->y = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Get_Track_Kerning( FT_Face face, + FT_Fixed ptsize, + FT_Int degree, + FT_Fixed* kerning ) + { + AFM_FontInfo fi = (AFM_FontInfo)( (T1_Face)face )->afm_data; + FT_Int i; + + + if ( !fi ) + return T1_Err_Invalid_Argument; + + for ( i = 0; i < fi->NumTrackKern; i++ ) + { + AFM_TrackKern tk = fi->TrackKerns + i; + + + if ( tk->degree != degree ) + continue; + + if ( ptsize < tk->min_ptsize ) + *kerning = tk->min_kern; + else if ( ptsize > tk->max_ptsize ) + *kerning = tk->max_kern; + else + { + *kerning = FT_MulDiv( ptsize - tk->min_ptsize, + tk->max_kern - tk->min_kern, + tk->max_ptsize - tk->min_ptsize ) + + tk->min_kern; + } + } + + return T1_Err_Ok; + } + + +/* END */ diff --git a/src/type1/t1afm.h b/src/type1/t1afm.h new file mode 100644 index 0000000..8eb1764 --- /dev/null +++ b/src/type1/t1afm.h @@ -0,0 +1,54 @@ +/***************************************************************************/ +/* */ +/* t1afm.h */ +/* */ +/* AFM support for Type 1 fonts (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2006 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1AFM_H__ +#define __T1AFM_H__ + +#include +#include "t1objs.h" +#include FT_INTERNAL_TYPE1_TYPES_H + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + T1_Read_Metrics( FT_Face face, + FT_Stream stream ); + + FT_LOCAL( void ) + T1_Done_Metrics( FT_Memory memory, + AFM_FontInfo fi ); + + FT_LOCAL( void ) + T1_Get_Kerning( AFM_FontInfo fi, + FT_UInt glyph1, + FT_UInt glyph2, + FT_Vector* kerning ); + + FT_LOCAL( FT_Error ) + T1_Get_Track_Kerning( FT_Face face, + FT_Fixed ptsize, + FT_Int degree, + FT_Fixed* kerning ); + +FT_END_HEADER + +#endif /* __T1AFM_H__ */ + + +/* END */ diff --git a/src/type1/t1driver.c b/src/type1/t1driver.c new file mode 100644 index 0000000..e35d7b1 --- /dev/null +++ b/src/type1/t1driver.c @@ -0,0 +1,730 @@ +/***************************************************************************/ +/* */ +/* t1driver.c */ +/* */ +/* Type 1 driver interface (body). */ +/* */ +/* Copyright 1996-2004, 2006, 2007, 2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include +#include "t1driver.h" +#include "t1gload.h" +#include "t1load.h" + +#include "t1errors.h" + +#ifndef T1_CONFIG_OPTION_NO_AFM +#include "t1afm.h" +#endif + +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H + +#include FT_SERVICE_MULTIPLE_MASTERS_H +#include FT_SERVICE_GLYPH_DICT_H +#include FT_SERVICE_XFREE86_NAME_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_SERVICE_POSTSCRIPT_INFO_H +#include FT_SERVICE_KERNING_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1driver + + /* + * GLYPH DICT SERVICE + * + */ + + static FT_Error + t1_get_glyph_name( T1_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ) + { + FT_STRCPYN( buffer, face->type1.glyph_names[glyph_index], buffer_max ); + + return T1_Err_Ok; + } + + + static FT_UInt + t1_get_name_index( T1_Face face, + FT_String* glyph_name ) + { + FT_Int i; + FT_String* gname; + + + for ( i = 0; i < face->type1.num_glyphs; i++ ) + { + gname = face->type1.glyph_names[i]; + + if ( !ft_strcmp( glyph_name, gname ) ) + return (FT_UInt)i; + } + + return 0; + } + + + static const FT_Service_GlyphDictRec t1_service_glyph_dict = + { + (FT_GlyphDict_GetNameFunc) t1_get_glyph_name, + (FT_GlyphDict_NameIndexFunc)t1_get_name_index + }; + + + /* + * POSTSCRIPT NAME SERVICE + * + */ + + static const char* + t1_get_ps_name( T1_Face face ) + { + return (const char*) face->type1.font_name; + } + + + static const FT_Service_PsFontNameRec t1_service_ps_name = + { + (FT_PsName_GetFunc)t1_get_ps_name + }; + + + /* + * MULTIPLE MASTERS SERVICE + * + */ + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + static const FT_Service_MultiMastersRec t1_service_multi_masters = + { + (FT_Get_MM_Func) T1_Get_Multi_Master, + (FT_Set_MM_Design_Func) T1_Set_MM_Design, + (FT_Set_MM_Blend_Func) T1_Set_MM_Blend, + (FT_Get_MM_Var_Func) T1_Get_MM_Var, + (FT_Set_Var_Design_Func)T1_Set_Var_Design + }; +#endif + + + /* + * POSTSCRIPT INFO SERVICE + * + */ + + static FT_Error + t1_ps_get_font_info( FT_Face face, + PS_FontInfoRec* afont_info ) + { + *afont_info = ((T1_Face)face)->type1.font_info; + + return T1_Err_Ok; + } + + + static FT_Error + t1_ps_get_font_extra( FT_Face face, + PS_FontExtraRec* afont_extra ) + { + *afont_extra = ((T1_Face)face)->type1.font_extra; + + return T1_Err_Ok; + } + + + static FT_Int + t1_ps_has_glyph_names( FT_Face face ) + { + FT_UNUSED( face ); + + return 1; + } + + + static FT_Error + t1_ps_get_font_private( FT_Face face, + PS_PrivateRec* afont_private ) + { + *afont_private = ((T1_Face)face)->type1.private_dict; + + return T1_Err_Ok; + } + + + static FT_Long + t1_ps_get_font_value( FT_Face face, + PS_Dict_Keys key, + FT_UInt idx, + void *value, + FT_Long value_len ) + { + FT_Long retval = -1; + T1_Face t1face = (T1_Face)face; + T1_Font type1 = &t1face->type1; + + + switch ( key ) + { + case PS_DICT_FONT_TYPE: + retval = sizeof ( type1->font_type ); + if ( value && value_len >= retval ) + *((FT_Byte *)value) = type1->font_type; + break; + + case PS_DICT_FONT_MATRIX: + if ( idx < sizeof ( type1->font_matrix ) / + sizeof ( type1->font_matrix.xx ) ) + { + FT_Fixed val = 0; + + + retval = sizeof ( val ); + if ( value && value_len >= retval ) + { + switch ( idx ) + { + case 0: + val = type1->font_matrix.xx; + break; + case 1: + val = type1->font_matrix.xy; + break; + case 2: + val = type1->font_matrix.yx; + break; + case 3: + val = type1->font_matrix.yy; + break; + } + *((FT_Fixed *)value) = val; + } + } + break; + + case PS_DICT_FONT_BBOX: + if ( idx < sizeof ( type1->font_bbox ) / + sizeof ( type1->font_bbox.xMin ) ) + { + FT_Fixed val = 0; + + + retval = sizeof ( val ); + if ( value && value_len >= retval ) + { + switch ( idx ) + { + case 0: + val = type1->font_bbox.xMin; + break; + case 1: + val = type1->font_bbox.yMin; + break; + case 2: + val = type1->font_bbox.xMax; + break; + case 3: + val = type1->font_bbox.yMax; + break; + } + *((FT_Fixed *)value) = val; + } + } + break; + + case PS_DICT_PAINT_TYPE: + retval = sizeof ( type1->paint_type ); + if ( value && value_len >= retval ) + *((FT_Byte *)value) = type1->paint_type; + break; + + case PS_DICT_FONT_NAME: + retval = ft_strlen( type1->font_name ) + 1; + if ( value && value_len >= retval ) + ft_memcpy( value, (void *)( type1->font_name ), retval ); + break; + + case PS_DICT_UNIQUE_ID: + retval = sizeof ( type1->private_dict.unique_id ); + if ( value && value_len >= retval ) + *((FT_Int *)value) = type1->private_dict.unique_id; + break; + + case PS_DICT_NUM_CHAR_STRINGS: + retval = sizeof ( type1->num_glyphs ); + if ( value && value_len >= retval ) + *((FT_Int *)value) = type1->num_glyphs; + break; + + case PS_DICT_CHAR_STRING_KEY: + if ( idx < (FT_UInt)type1->num_glyphs ) + { + retval = ft_strlen( type1->glyph_names[idx] ) + 1; + if ( value && value_len >= retval ) + { + ft_memcpy( value, (void *)( type1->glyph_names[idx] ), retval ); + ((FT_Char *)value)[retval - 1] = (FT_Char)'\0'; + } + } + break; + + case PS_DICT_CHAR_STRING: + if ( idx < (FT_UInt)type1->num_glyphs ) + { + retval = type1->charstrings_len[idx] + 1; + if ( value && value_len >= retval ) + { + ft_memcpy( value, (void *)( type1->charstrings[idx] ), + retval - 1 ); + ((FT_Char *)value)[retval - 1] = (FT_Char)'\0'; + } + } + break; + + case PS_DICT_ENCODING_TYPE: + retval = sizeof ( type1->encoding_type ); + if ( value && value_len >= retval ) + *((T1_EncodingType *)value) = type1->encoding_type; + break; + + case PS_DICT_ENCODING_ENTRY: + if ( type1->encoding_type == T1_ENCODING_TYPE_ARRAY && + idx < (FT_UInt)type1->encoding.num_chars ) + { + retval = ft_strlen( type1->encoding.char_name[idx] ) + 1; + if ( value && value_len >= retval ) + { + ft_memcpy( value, (void *)( type1->encoding.char_name[idx] ), + retval - 1 ); + ((FT_Char *)value)[retval - 1] = (FT_Char)'\0'; + } + } + break; + + case PS_DICT_NUM_SUBRS: + retval = sizeof ( type1->num_subrs ); + if ( value && value_len >= retval ) + *((FT_Int *)value) = type1->num_subrs; + break; + + case PS_DICT_SUBR: + if ( idx < (FT_UInt)type1->num_subrs ) + { + retval = type1->subrs_len[idx] + 1; + if ( value && value_len >= retval ) + { + ft_memcpy( value, (void *)( type1->subrs[idx] ), retval - 1 ); + ((FT_Char *)value)[retval - 1] = (FT_Char)'\0'; + } + } + break; + + case PS_DICT_STD_HW: + retval = sizeof ( type1->private_dict.standard_width[0] ); + if ( value && value_len >= retval ) + *((FT_UShort *)value) = type1->private_dict.standard_width[0]; + break; + + case PS_DICT_STD_VW: + retval = sizeof ( type1->private_dict.standard_height[0] ); + if ( value && value_len >= retval ) + *((FT_UShort *)value) = type1->private_dict.standard_height[0]; + break; + + case PS_DICT_NUM_BLUE_VALUES: + retval = sizeof ( type1->private_dict.num_blue_values ); + if ( value && value_len >= retval ) + *((FT_Byte *)value) = type1->private_dict.num_blue_values; + break; + + case PS_DICT_BLUE_VALUE: + if ( idx < type1->private_dict.num_blue_values ) + { + retval = sizeof ( type1->private_dict.blue_values[idx] ); + if ( value && value_len >= retval ) + *((FT_Short *)value) = type1->private_dict.blue_values[idx]; + } + break; + + case PS_DICT_BLUE_SCALE: + retval = sizeof ( type1->private_dict.blue_scale ); + if ( value && value_len >= retval ) + *((FT_Fixed *)value) = type1->private_dict.blue_scale; + break; + + case PS_DICT_BLUE_FUZZ: + retval = sizeof ( type1->private_dict.blue_fuzz ); + if ( value && value_len >= retval ) + *((FT_Int *)value) = type1->private_dict.blue_fuzz; + break; + + case PS_DICT_BLUE_SHIFT: + retval = sizeof ( type1->private_dict.blue_shift ); + if ( value && value_len >= retval ) + *((FT_Int *)value) = type1->private_dict.blue_shift; + break; + + case PS_DICT_NUM_OTHER_BLUES: + retval = sizeof ( type1->private_dict.num_other_blues ); + if ( value && value_len >= retval ) + *((FT_Byte *)value) = type1->private_dict.num_other_blues; + break; + + case PS_DICT_OTHER_BLUE: + if ( idx < type1->private_dict.num_other_blues ) + { + retval = sizeof ( type1->private_dict.other_blues[idx] ); + if ( value && value_len >= retval ) + *((FT_Short *)value) = type1->private_dict.other_blues[idx]; + } + break; + + case PS_DICT_NUM_FAMILY_BLUES: + retval = sizeof ( type1->private_dict.num_family_blues ); + if ( value && value_len >= retval ) + *((FT_Byte *)value) = type1->private_dict.num_family_blues; + break; + + case PS_DICT_FAMILY_BLUE: + if ( idx < type1->private_dict.num_family_blues ) + { + retval = sizeof ( type1->private_dict.family_blues[idx] ); + if ( value && value_len >= retval ) + *((FT_Short *)value) = type1->private_dict.family_blues[idx]; + } + break; + + case PS_DICT_NUM_FAMILY_OTHER_BLUES: + retval = sizeof ( type1->private_dict.num_family_other_blues ); + if ( value && value_len >= retval ) + *((FT_Byte *)value) = type1->private_dict.num_family_other_blues; + break; + + case PS_DICT_FAMILY_OTHER_BLUE: + if ( idx < type1->private_dict.num_family_other_blues ) + { + retval = sizeof ( type1->private_dict.family_other_blues[idx] ); + if ( value && value_len >= retval ) + *((FT_Short *)value) = type1->private_dict.family_other_blues[idx]; + } + break; + + case PS_DICT_NUM_STEM_SNAP_H: + retval = sizeof ( type1->private_dict.num_snap_widths ); + if ( value && value_len >= retval ) + *((FT_Byte *)value) = type1->private_dict.num_snap_widths; + break; + + case PS_DICT_STEM_SNAP_H: + if ( idx < type1->private_dict.num_snap_widths ) + { + retval = sizeof ( type1->private_dict.snap_widths[idx] ); + if ( value && value_len >= retval ) + *((FT_Short *)value) = type1->private_dict.snap_widths[idx]; + } + break; + + case PS_DICT_NUM_STEM_SNAP_V: + retval = sizeof ( type1->private_dict.num_snap_heights ); + if ( value && value_len >= retval ) + *((FT_Byte *)value) = type1->private_dict.num_snap_heights; + break; + + case PS_DICT_STEM_SNAP_V: + if ( idx < type1->private_dict.num_snap_heights ) + { + retval = sizeof ( type1->private_dict.snap_heights[idx] ); + if ( value && value_len >= retval ) + *((FT_Short *)value) = type1->private_dict.snap_heights[idx]; + } + break; + + case PS_DICT_RND_STEM_UP: + retval = sizeof ( type1->private_dict.round_stem_up ); + if ( value && value_len >= retval ) + *((FT_Bool *)value) = type1->private_dict.round_stem_up; + break; + + case PS_DICT_FORCE_BOLD: + retval = sizeof ( type1->private_dict.force_bold ); + if ( value && value_len >= retval ) + *((FT_Bool *)value) = type1->private_dict.force_bold; + break; + + case PS_DICT_MIN_FEATURE: + if ( idx < sizeof ( type1->private_dict.min_feature ) / + sizeof ( type1->private_dict.min_feature[0] ) ) + { + retval = sizeof ( type1->private_dict.min_feature[idx] ); + if ( value && value_len >= retval ) + *((FT_Short *)value) = type1->private_dict.min_feature[idx]; + } + break; + + case PS_DICT_LEN_IV: + retval = sizeof ( type1->private_dict.lenIV ); + if ( value && value_len >= retval ) + *((FT_Int *)value) = type1->private_dict.lenIV; + break; + + case PS_DICT_PASSWORD: + retval = sizeof ( type1->private_dict.password ); + if ( value && value_len >= retval ) + *((FT_Long *)value) = type1->private_dict.password; + break; + + case PS_DICT_LANGUAGE_GROUP: + retval = sizeof ( type1->private_dict.language_group ); + if ( value && value_len >= retval ) + *((FT_Long *)value) = type1->private_dict.language_group; + break; + + case PS_DICT_IS_FIXED_PITCH: + retval = sizeof ( type1->font_info.is_fixed_pitch ); + if ( value && value_len >= retval ) + *((FT_Bool *)value) = type1->font_info.is_fixed_pitch; + break; + + case PS_DICT_UNDERLINE_POSITION: + retval = sizeof ( type1->font_info.underline_position ); + if ( value && value_len >= retval ) + *((FT_Short *)value) = type1->font_info.underline_position; + break; + + case PS_DICT_UNDERLINE_THICKNESS: + retval = sizeof ( type1->font_info.underline_thickness ); + if ( value && value_len >= retval ) + *((FT_UShort *)value) = type1->font_info.underline_thickness; + break; + + case PS_DICT_FS_TYPE: + retval = sizeof ( type1->font_extra.fs_type ); + if ( value && value_len >= retval ) + *((FT_UShort *)value) = type1->font_extra.fs_type; + break; + + case PS_DICT_VERSION: + retval = ft_strlen( type1->font_info.version ) + 1; + if ( value && value_len >= retval ) + ft_memcpy( value, (void *)( type1->font_info.version ), retval ); + break; + + case PS_DICT_NOTICE: + retval = ft_strlen( type1->font_info.notice ) + 1; + if ( value && value_len >= retval ) + ft_memcpy( value, (void *)( type1->font_info.notice ), retval ); + break; + + case PS_DICT_FULL_NAME: + retval = ft_strlen( type1->font_info.full_name ) + 1; + if ( value && value_len >= retval ) + ft_memcpy( value, (void *)( type1->font_info.full_name ), retval ); + break; + + case PS_DICT_FAMILY_NAME: + retval = ft_strlen( type1->font_info.family_name ) + 1; + if ( value && value_len >= retval ) + ft_memcpy( value, (void *)( type1->font_info.family_name ), retval ); + break; + + case PS_DICT_WEIGHT: + retval = ft_strlen( type1->font_info.weight ) + 1; + if ( value && value_len >= retval ) + ft_memcpy( value, (void *)( type1->font_info.weight ), retval ); + break; + + case PS_DICT_ITALIC_ANGLE: + retval = sizeof ( type1->font_info.italic_angle ); + if ( value && value_len >= retval ) + *((FT_Long *)value) = type1->font_info.italic_angle; + break; + + default: + break; + } + + return retval; + } + + + static const FT_Service_PsInfoRec t1_service_ps_info = + { + (PS_GetFontInfoFunc) t1_ps_get_font_info, + (PS_GetFontExtraFunc) t1_ps_get_font_extra, + (PS_HasGlyphNamesFunc) t1_ps_has_glyph_names, + (PS_GetFontPrivateFunc)t1_ps_get_font_private, + (PS_GetFontValueFunc) t1_ps_get_font_value, + }; + + +#ifndef T1_CONFIG_OPTION_NO_AFM + static const FT_Service_KerningRec t1_service_kerning = + { + T1_Get_Track_Kerning, + }; +#endif + + + /* + * SERVICE LIST + * + */ + + static const FT_ServiceDescRec t1_services[] = + { + { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t1_service_ps_name }, + { FT_SERVICE_ID_GLYPH_DICT, &t1_service_glyph_dict }, + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_TYPE_1 }, + { FT_SERVICE_ID_POSTSCRIPT_INFO, &t1_service_ps_info }, + +#ifndef T1_CONFIG_OPTION_NO_AFM + { FT_SERVICE_ID_KERNING, &t1_service_kerning }, +#endif + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + { FT_SERVICE_ID_MULTI_MASTERS, &t1_service_multi_masters }, +#endif + { NULL, NULL } + }; + + + FT_CALLBACK_DEF( FT_Module_Interface ) + Get_Interface( FT_Module module, + const FT_String* t1_interface ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( t1_services, t1_interface ); + } + + +#ifndef T1_CONFIG_OPTION_NO_AFM + + /*************************************************************************/ + /* */ + /* */ + /* Get_Kerning */ + /* */ + /* */ + /* A driver method used to return the kerning vector between two */ + /* glyphs of the same face. */ + /* */ + /* */ + /* face :: A handle to the source face object. */ + /* */ + /* left_glyph :: The index of the left glyph in the kern pair. */ + /* */ + /* right_glyph :: The index of the right glyph in the kern pair. */ + /* */ + /* */ + /* kerning :: The kerning vector. This is in font units for */ + /* scalable formats, and in pixels for fixed-sizes */ + /* formats. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + /* */ + /* Only horizontal layouts (left-to-right & right-to-left) are */ + /* supported by this function. Other layouts, or more sophisticated */ + /* kernings are out of scope of this method (the basic driver */ + /* interface is meant to be simple). */ + /* */ + /* They can be implemented by format-specific interfaces. */ + /* */ + static FT_Error + Get_Kerning( FT_Face t1face, /* T1_Face */ + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_Vector* kerning ) + { + T1_Face face = (T1_Face)t1face; + + + kerning->x = 0; + kerning->y = 0; + + if ( face->afm_data ) + T1_Get_Kerning( (AFM_FontInfo)face->afm_data, + left_glyph, + right_glyph, + kerning ); + + return T1_Err_Ok; + } + + +#endif /* T1_CONFIG_OPTION_NO_AFM */ + + + FT_CALLBACK_TABLE_DEF + const FT_Driver_ClassRec t1_driver_class = + { + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_SCALABLE | + FT_MODULE_DRIVER_HAS_HINTER, + + sizeof ( FT_DriverRec ), + + "type1", + 0x10000L, + 0x20000L, + + 0, /* format interface */ + + T1_Driver_Init, + T1_Driver_Done, + Get_Interface, + }, + + sizeof ( T1_FaceRec ), + sizeof ( T1_SizeRec ), + sizeof ( T1_GlyphSlotRec ), + + T1_Face_Init, + T1_Face_Done, + T1_Size_Init, + T1_Size_Done, + T1_GlyphSlot_Init, + T1_GlyphSlot_Done, + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + T1_Load_Glyph, + +#ifdef T1_CONFIG_OPTION_NO_AFM + 0, /* FT_Face_GetKerningFunc */ + 0, /* FT_Face_AttachFunc */ +#else + Get_Kerning, + T1_Read_Metrics, +#endif + T1_Get_Advances, + T1_Size_Request, + 0 /* FT_Size_SelectFunc */ + }; + + +/* END */ diff --git a/src/type1/t1driver.h b/src/type1/t1driver.h new file mode 100644 index 0000000..639cd4a --- /dev/null +++ b/src/type1/t1driver.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* t1driver.h */ +/* */ +/* High-level Type 1 driver interface (specification). */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1DRIVER_H__ +#define __T1DRIVER_H__ + + +#include +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_EXPORT_VAR( const FT_Driver_ClassRec ) t1_driver_class; + + +FT_END_HEADER + +#endif /* __T1DRIVER_H__ */ + + +/* END */ diff --git a/src/type1/t1errors.h b/src/type1/t1errors.h new file mode 100644 index 0000000..8740530 --- /dev/null +++ b/src/type1/t1errors.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* t1errors.h */ +/* */ +/* Type 1 error codes (specification only). */ +/* */ +/* Copyright 2001, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the Type 1 error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __T1ERRORS_H__ +#define __T1ERRORS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX T1_Err_ +#define FT_ERR_BASE FT_Mod_Err_Type1 + +#include FT_ERRORS_H + +#endif /* __T1ERRORS_H__ */ + + +/* END */ diff --git a/src/type1/t1gload.c b/src/type1/t1gload.c new file mode 100644 index 0000000..80e5453 --- /dev/null +++ b/src/type1/t1gload.c @@ -0,0 +1,517 @@ +/***************************************************************************/ +/* */ +/* t1gload.c */ +/* */ +/* Type 1 Glyph Loader (body). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2010 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include +#include "t1gload.h" +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_OUTLINE_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + +#include "t1errors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1gload + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /********** *********/ + /********** COMPUTE THE MAXIMUM ADVANCE WIDTH *********/ + /********** *********/ + /********** The following code is in charge of computing *********/ + /********** the maximum advance width of the font. It *********/ + /********** quickly processes each glyph charstring to *********/ + /********** extract the value from either a `sbw' or `seac' *********/ + /********** operator. *********/ + /********** *********/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_LOCAL_DEF( FT_Error ) + T1_Parse_Glyph_And_Get_Char_String( T1_Decoder decoder, + FT_UInt glyph_index, + FT_Data* char_string ) + { + T1_Face face = (T1_Face)decoder->builder.face; + T1_Font type1 = &face->type1; + FT_Error error = T1_Err_Ok; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + FT_Incremental_InterfaceRec *inc = + face->root.internal->incremental_interface; +#endif + + + decoder->font_matrix = type1->font_matrix; + decoder->font_offset = type1->font_offset; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + /* For incremental fonts get the character data using the */ + /* callback function. */ + if ( inc ) + error = inc->funcs->get_glyph_data( inc->object, + glyph_index, char_string ); + else + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + /* For ordinary fonts get the character data stored in the face record. */ + { + char_string->pointer = type1->charstrings[glyph_index]; + char_string->length = (FT_Int)type1->charstrings_len[glyph_index]; + } + + if ( !error ) + error = decoder->funcs.parse_charstrings( + decoder, (FT_Byte*)char_string->pointer, + char_string->length ); + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + /* Incremental fonts can optionally override the metrics. */ + if ( !error && inc && inc->funcs->get_glyph_metrics ) + { + FT_Incremental_MetricsRec metrics; + + + metrics.bearing_x = FIXED_TO_INT( decoder->builder.left_bearing.x ); + metrics.bearing_y = 0; + metrics.advance = FIXED_TO_INT( decoder->builder.advance.x ); + metrics.advance_v = FIXED_TO_INT( decoder->builder.advance.y ); + + error = inc->funcs->get_glyph_metrics( inc->object, + glyph_index, FALSE, &metrics ); + + decoder->builder.left_bearing.x = INT_TO_FIXED( metrics.bearing_x ); + decoder->builder.advance.x = INT_TO_FIXED( metrics.advance ); + decoder->builder.advance.y = INT_TO_FIXED( metrics.advance_v ); + } + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + T1_Parse_Glyph( T1_Decoder decoder, + FT_UInt glyph_index ) + { + FT_Data glyph_data; + FT_Error error = T1_Parse_Glyph_And_Get_Char_String( + decoder, glyph_index, &glyph_data ); + + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + + if ( !error ) + { + T1_Face face = (T1_Face)decoder->builder.face; + + + if ( face->root.internal->incremental_interface ) + face->root.internal->incremental_interface->funcs->free_glyph_data( + face->root.internal->incremental_interface->object, + &glyph_data ); + } + +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Compute_Max_Advance( T1_Face face, + FT_Pos* max_advance ) + { + FT_Error error; + T1_DecoderRec decoder; + FT_Int glyph_index; + T1_Font type1 = &face->type1; + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + FT_ASSERT( ( face->len_buildchar == 0 ) == ( face->buildchar == NULL ) ); + + *max_advance = 0; + + /* initialize load decoder */ + error = psaux->t1_decoder_funcs->init( &decoder, + (FT_Face)face, + 0, /* size */ + 0, /* glyph slot */ + (FT_Byte**)type1->glyph_names, + face->blend, + 0, + FT_RENDER_MODE_NORMAL, + T1_Parse_Glyph ); + if ( error ) + return error; + + decoder.builder.metrics_only = 1; + decoder.builder.load_points = 0; + + decoder.num_subrs = type1->num_subrs; + decoder.subrs = type1->subrs; + decoder.subrs_len = type1->subrs_len; + + decoder.buildchar = face->buildchar; + decoder.len_buildchar = face->len_buildchar; + + *max_advance = 0; + + /* for each glyph, parse the glyph charstring and extract */ + /* the advance width */ + for ( glyph_index = 0; glyph_index < type1->num_glyphs; glyph_index++ ) + { + /* now get load the unscaled outline */ + error = T1_Parse_Glyph( &decoder, glyph_index ); + if ( glyph_index == 0 || decoder.builder.advance.x > *max_advance ) + *max_advance = decoder.builder.advance.x; + + /* ignore the error if one occurred - skip to next glyph */ + } + + psaux->t1_decoder_funcs->done( &decoder ); + + return T1_Err_Ok; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Get_Advances( FT_Face t1face, /* T1_Face */ + FT_UInt first, + FT_UInt count, + FT_Int32 load_flags, + FT_Fixed* advances ) + { + T1_Face face = (T1_Face)t1face; + T1_DecoderRec decoder; + T1_Font type1 = &face->type1; + PSAux_Service psaux = (PSAux_Service)face->psaux; + FT_UInt nn; + FT_Error error; + + + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + for ( nn = 0; nn < count; nn++ ) + advances[nn] = 0; + + return T1_Err_Ok; + } + + error = psaux->t1_decoder_funcs->init( &decoder, + (FT_Face)face, + 0, /* size */ + 0, /* glyph slot */ + (FT_Byte**)type1->glyph_names, + face->blend, + 0, + FT_RENDER_MODE_NORMAL, + T1_Parse_Glyph ); + if ( error ) + return error; + + decoder.builder.metrics_only = 1; + decoder.builder.load_points = 0; + + decoder.num_subrs = type1->num_subrs; + decoder.subrs = type1->subrs; + decoder.subrs_len = type1->subrs_len; + + decoder.buildchar = face->buildchar; + decoder.len_buildchar = face->len_buildchar; + + for ( nn = 0; nn < count; nn++ ) + { + error = T1_Parse_Glyph( &decoder, first + nn ); + if ( !error ) + advances[nn] = FIXED_TO_INT( decoder.builder.advance.x ); + else + advances[nn] = 0; + } + + return T1_Err_Ok; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Load_Glyph( FT_GlyphSlot t1glyph, /* T1_GlyphSlot */ + FT_Size t1size, /* T1_Size */ + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + T1_GlyphSlot glyph = (T1_GlyphSlot)t1glyph; + FT_Error error; + T1_DecoderRec decoder; + T1_Face face = (T1_Face)t1glyph->face; + FT_Bool hinting; + T1_Font type1 = &face->type1; + PSAux_Service psaux = (PSAux_Service)face->psaux; + const T1_Decoder_Funcs decoder_funcs = psaux->t1_decoder_funcs; + + FT_Matrix font_matrix; + FT_Vector font_offset; + FT_Data glyph_data; + FT_Bool must_finish_decoder = FALSE; +#ifdef FT_CONFIG_OPTION_INCREMENTAL + FT_Bool glyph_data_loaded = 0; +#endif + + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + if ( glyph_index >= (FT_UInt)face->root.num_glyphs && + !face->root.internal->incremental_interface ) +#else + if ( glyph_index >= (FT_UInt)face->root.num_glyphs ) +#endif /* FT_CONFIG_OPTION_INCREMENTAL */ + { + error = T1_Err_Invalid_Argument; + goto Exit; + } + + FT_ASSERT( ( face->len_buildchar == 0 ) == ( face->buildchar == NULL ) ); + + if ( load_flags & FT_LOAD_NO_RECURSE ) + load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; + + if ( t1size ) + { + glyph->x_scale = t1size->metrics.x_scale; + glyph->y_scale = t1size->metrics.y_scale; + } + else + { + glyph->x_scale = 0x10000L; + glyph->y_scale = 0x10000L; + } + + t1glyph->outline.n_points = 0; + t1glyph->outline.n_contours = 0; + + hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 && + ( load_flags & FT_LOAD_NO_HINTING ) == 0 ); + + t1glyph->format = FT_GLYPH_FORMAT_OUTLINE; + + error = decoder_funcs->init( &decoder, + t1glyph->face, + t1size, + t1glyph, + (FT_Byte**)type1->glyph_names, + face->blend, + FT_BOOL( hinting ), + FT_LOAD_TARGET_MODE( load_flags ), + T1_Parse_Glyph ); + if ( error ) + goto Exit; + + must_finish_decoder = TRUE; + + decoder.builder.no_recurse = FT_BOOL( + ( load_flags & FT_LOAD_NO_RECURSE ) != 0 ); + + decoder.num_subrs = type1->num_subrs; + decoder.subrs = type1->subrs; + decoder.subrs_len = type1->subrs_len; + + decoder.buildchar = face->buildchar; + decoder.len_buildchar = face->len_buildchar; + + /* now load the unscaled outline */ + error = T1_Parse_Glyph_And_Get_Char_String( &decoder, glyph_index, + &glyph_data ); + if ( error ) + goto Exit; +#ifdef FT_CONFIG_OPTION_INCREMENTAL + glyph_data_loaded = 1; +#endif + + font_matrix = decoder.font_matrix; + font_offset = decoder.font_offset; + + /* save new glyph tables */ + decoder_funcs->done( &decoder ); + + must_finish_decoder = FALSE; + + /* now, set the metrics -- this is rather simple, as */ + /* the left side bearing is the xMin, and the top side */ + /* bearing the yMax */ + if ( !error ) + { + t1glyph->outline.flags &= FT_OUTLINE_OWNER; + t1glyph->outline.flags |= FT_OUTLINE_REVERSE_FILL; + + /* for composite glyphs, return only left side bearing and */ + /* advance width */ + if ( load_flags & FT_LOAD_NO_RECURSE ) + { + FT_Slot_Internal internal = t1glyph->internal; + + + t1glyph->metrics.horiBearingX = + FIXED_TO_INT( decoder.builder.left_bearing.x ); + t1glyph->metrics.horiAdvance = + FIXED_TO_INT( decoder.builder.advance.x ); + + internal->glyph_matrix = font_matrix; + internal->glyph_delta = font_offset; + internal->glyph_transformed = 1; + } + else + { + FT_BBox cbox; + FT_Glyph_Metrics* metrics = &t1glyph->metrics; + FT_Vector advance; + + + /* copy the _unscaled_ advance width */ + metrics->horiAdvance = + FIXED_TO_INT( decoder.builder.advance.x ); + t1glyph->linearHoriAdvance = + FIXED_TO_INT( decoder.builder.advance.x ); + t1glyph->internal->glyph_transformed = 0; + + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + /* make up vertical ones */ + metrics->vertAdvance = ( face->type1.font_bbox.yMax - + face->type1.font_bbox.yMin ) >> 16; + t1glyph->linearVertAdvance = metrics->vertAdvance; + } + else + { + metrics->vertAdvance = + FIXED_TO_INT( decoder.builder.advance.y ); + t1glyph->linearVertAdvance = + FIXED_TO_INT( decoder.builder.advance.y ); + } + + t1glyph->format = FT_GLYPH_FORMAT_OUTLINE; + + if ( t1size && t1size->metrics.y_ppem < 24 ) + t1glyph->outline.flags |= FT_OUTLINE_HIGH_PRECISION; + +#if 1 + /* apply the font matrix, if any */ + if ( font_matrix.xx != 0x10000L || font_matrix.yy != font_matrix.xx || + font_matrix.xy != 0 || font_matrix.yx != 0 ) + FT_Outline_Transform( &t1glyph->outline, &font_matrix ); + + if ( font_offset.x || font_offset.y ) + FT_Outline_Translate( &t1glyph->outline, + font_offset.x, + font_offset.y ); + + advance.x = metrics->horiAdvance; + advance.y = 0; + FT_Vector_Transform( &advance, &font_matrix ); + metrics->horiAdvance = advance.x + font_offset.x; + advance.x = 0; + advance.y = metrics->vertAdvance; + FT_Vector_Transform( &advance, &font_matrix ); + metrics->vertAdvance = advance.y + font_offset.y; +#endif + + if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 ) + { + /* scale the outline and the metrics */ + FT_Int n; + FT_Outline* cur = decoder.builder.base; + FT_Vector* vec = cur->points; + FT_Fixed x_scale = glyph->x_scale; + FT_Fixed y_scale = glyph->y_scale; + + + /* First of all, scale the points, if we are not hinting */ + if ( !hinting || ! decoder.builder.hints_funcs ) + for ( n = cur->n_points; n > 0; n--, vec++ ) + { + vec->x = FT_MulFix( vec->x, x_scale ); + vec->y = FT_MulFix( vec->y, y_scale ); + } + + /* Then scale the metrics */ + metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale ); + metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale ); + } + + /* compute the other metrics */ + FT_Outline_Get_CBox( &t1glyph->outline, &cbox ); + + metrics->width = cbox.xMax - cbox.xMin; + metrics->height = cbox.yMax - cbox.yMin; + + metrics->horiBearingX = cbox.xMin; + metrics->horiBearingY = cbox.yMax; + + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + /* make up vertical ones */ + ft_synthesize_vertical_metrics( metrics, + metrics->vertAdvance ); + } + } + + /* Set control data to the glyph charstrings. Note that this is */ + /* _not_ zero-terminated. */ + t1glyph->control_data = (FT_Byte*)glyph_data.pointer; + t1glyph->control_len = glyph_data.length; + } + + + Exit: + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + if ( glyph_data_loaded && face->root.internal->incremental_interface ) + { + face->root.internal->incremental_interface->funcs->free_glyph_data( + face->root.internal->incremental_interface->object, + &glyph_data ); + + /* Set the control data to null - it is no longer available if */ + /* loaded incrementally. */ + t1glyph->control_data = 0; + t1glyph->control_len = 0; + } +#endif + + if ( must_finish_decoder ) + decoder_funcs->done( &decoder ); + + return error; + } + + +/* END */ diff --git a/src/type1/t1gload.h b/src/type1/t1gload.h new file mode 100644 index 0000000..0bdea3a --- /dev/null +++ b/src/type1/t1gload.h @@ -0,0 +1,53 @@ +/***************************************************************************/ +/* */ +/* t1gload.h */ +/* */ +/* Type 1 Glyph Loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2008, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1GLOAD_H__ +#define __T1GLOAD_H__ + + +#include +#include "t1objs.h" + + +FT_BEGIN_HEADER + + + FT_LOCAL( FT_Error ) + T1_Compute_Max_Advance( T1_Face face, + FT_Pos* max_advance ); + + FT_LOCAL( FT_Error ) + T1_Get_Advances( FT_Face face, + FT_UInt first, + FT_UInt count, + FT_Int32 load_flags, + FT_Fixed* advances ); + + FT_LOCAL( FT_Error ) + T1_Load_Glyph( FT_GlyphSlot glyph, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + +FT_END_HEADER + +#endif /* __T1GLOAD_H__ */ + + +/* END */ diff --git a/src/type1/t1load.c b/src/type1/t1load.c new file mode 100644 index 0000000..a0adfd4 --- /dev/null +++ b/src/type1/t1load.c @@ -0,0 +1,2243 @@ +/***************************************************************************/ +/* */ +/* t1load.c */ +/* */ +/* Type 1 font loader (body). */ +/* */ +/* Copyright 1996-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This is the new and improved Type 1 data loader for FreeType 2. The */ + /* old loader has several problems: it is slow, complex, difficult to */ + /* maintain, and contains incredible hacks to make it accept some */ + /* ill-formed Type 1 fonts without hiccup-ing. Moreover, about 5% of */ + /* the Type 1 fonts on my machine still aren't loaded correctly by it. */ + /* */ + /* This version is much simpler, much faster and also easier to read and */ + /* maintain by a great order of magnitude. The idea behind it is to */ + /* _not_ try to read the Type 1 token stream with a state machine (i.e. */ + /* a Postscript-like interpreter) but rather to perform simple pattern */ + /* matching. */ + /* */ + /* Indeed, nearly all data definitions follow a simple pattern like */ + /* */ + /* ... /Field ... */ + /* */ + /* where can be a number, a boolean, a string, or an array of */ + /* numbers. There are a few exceptions, namely the encoding, font name, */ + /* charstrings, and subrs; they are handled with a special pattern */ + /* matching routine. */ + /* */ + /* All other common cases are handled very simply. The matching rules */ + /* are defined in the file `t1tokens.h' through the use of several */ + /* macros calls PARSE_XXX. This file is included twice here; the first */ + /* time to generate parsing callback functions, the second time to */ + /* generate a table of keywords (with pointers to the associated */ + /* callback functions). */ + /* */ + /* The function `parse_dict' simply scans *linearly* a given dictionary */ + /* (either the top-level or private one) and calls the appropriate */ + /* callback when it encounters an immediate keyword. */ + /* */ + /* This is by far the fastest way one can find to parse and read all */ + /* data. */ + /* */ + /* This led to tremendous code size reduction. Note that later, the */ + /* glyph loader will also be _greatly_ simplified, and the automatic */ + /* hinter will replace the clumsy `t1hinter'. */ + /* */ + /*************************************************************************/ + + +#include +#include FT_INTERNAL_DEBUG_H +#include FT_CONFIG_CONFIG_H +#include FT_MULTIPLE_MASTERS_H +#include FT_INTERNAL_TYPE1_TYPES_H +#include FT_INTERNAL_CALC_H + +#include "t1load.h" +#include "t1errors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1load + + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** MULTIPLE MASTERS SUPPORT *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + t1_allocate_blend( T1_Face face, + FT_UInt num_designs, + FT_UInt num_axis ) + { + PS_Blend blend; + FT_Memory memory = face->root.memory; + FT_Error error = T1_Err_Ok; + + + blend = face->blend; + if ( !blend ) + { + if ( FT_NEW( blend ) ) + goto Exit; + + blend->num_default_design_vector = 0; + + face->blend = blend; + } + + /* allocate design data if needed */ + if ( num_designs > 0 ) + { + if ( blend->num_designs == 0 ) + { + FT_UInt nn; + + + /* allocate the blend `private' and `font_info' dictionaries */ + if ( FT_NEW_ARRAY( blend->font_infos[1], num_designs ) || + FT_NEW_ARRAY( blend->privates[1], num_designs ) || + FT_NEW_ARRAY( blend->bboxes[1], num_designs ) || + FT_NEW_ARRAY( blend->weight_vector, num_designs * 2 ) ) + goto Exit; + + blend->default_weight_vector = blend->weight_vector + num_designs; + + blend->font_infos[0] = &face->type1.font_info; + blend->privates [0] = &face->type1.private_dict; + blend->bboxes [0] = &face->type1.font_bbox; + + for ( nn = 2; nn <= num_designs; nn++ ) + { + blend->privates[nn] = blend->privates [nn - 1] + 1; + blend->font_infos[nn] = blend->font_infos[nn - 1] + 1; + blend->bboxes[nn] = blend->bboxes [nn - 1] + 1; + } + + blend->num_designs = num_designs; + } + else if ( blend->num_designs != num_designs ) + goto Fail; + } + + /* allocate axis data if needed */ + if ( num_axis > 0 ) + { + if ( blend->num_axis != 0 && blend->num_axis != num_axis ) + goto Fail; + + blend->num_axis = num_axis; + } + + /* allocate the blend design pos table if needed */ + num_designs = blend->num_designs; + num_axis = blend->num_axis; + if ( num_designs && num_axis && blend->design_pos[0] == 0 ) + { + FT_UInt n; + + + if ( FT_NEW_ARRAY( blend->design_pos[0], num_designs * num_axis ) ) + goto Exit; + + for ( n = 1; n < num_designs; n++ ) + blend->design_pos[n] = blend->design_pos[0] + num_axis * n; + } + + Exit: + return error; + + Fail: + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Get_Multi_Master( T1_Face face, + FT_Multi_Master* master ) + { + PS_Blend blend = face->blend; + FT_UInt n; + FT_Error error; + + + error = T1_Err_Invalid_Argument; + + if ( blend ) + { + master->num_axis = blend->num_axis; + master->num_designs = blend->num_designs; + + for ( n = 0; n < blend->num_axis; n++ ) + { + FT_MM_Axis* axis = master->axis + n; + PS_DesignMap map = blend->design_map + n; + + + axis->name = blend->axis_names[n]; + axis->minimum = map->design_points[0]; + axis->maximum = map->design_points[map->num_points - 1]; + } + + error = T1_Err_Ok; + } + + return error; + } + + + /*************************************************************************/ + /* */ + /* Given a normalized (blend) coordinate, figure out the design */ + /* coordinate appropriate for that value. */ + /* */ + FT_LOCAL_DEF( FT_Fixed ) + mm_axis_unmap( PS_DesignMap axismap, + FT_Fixed ncv ) + { + int j; + + + if ( ncv <= axismap->blend_points[0] ) + return INT_TO_FIXED( axismap->design_points[0] ); + + for ( j = 1; j < axismap->num_points; ++j ) + { + if ( ncv <= axismap->blend_points[j] ) + { + FT_Fixed t = FT_MulDiv( ncv - axismap->blend_points[j - 1], + 0x10000L, + axismap->blend_points[j] - + axismap->blend_points[j - 1] ); + + return INT_TO_FIXED( axismap->design_points[j - 1] ) + + FT_MulDiv( t, + axismap->design_points[j] - + axismap->design_points[j - 1], + 1L ); + } + } + + return INT_TO_FIXED( axismap->design_points[axismap->num_points - 1] ); + } + + + /*************************************************************************/ + /* */ + /* Given a vector of weights, one for each design, figure out the */ + /* normalized axis coordinates which gave rise to those weights. */ + /* */ + FT_LOCAL_DEF( void ) + mm_weights_unmap( FT_Fixed* weights, + FT_Fixed* axiscoords, + FT_UInt axis_count ) + { + FT_ASSERT( axis_count <= T1_MAX_MM_AXIS ); + + if ( axis_count == 1 ) + axiscoords[0] = weights[1]; + + else if ( axis_count == 2 ) + { + axiscoords[0] = weights[3] + weights[1]; + axiscoords[1] = weights[3] + weights[2]; + } + + else if ( axis_count == 3 ) + { + axiscoords[0] = weights[7] + weights[5] + weights[3] + weights[1]; + axiscoords[1] = weights[7] + weights[6] + weights[3] + weights[2]; + axiscoords[2] = weights[7] + weights[6] + weights[5] + weights[4]; + } + + else + { + axiscoords[0] = weights[15] + weights[13] + weights[11] + weights[9] + + weights[7] + weights[5] + weights[3] + weights[1]; + axiscoords[1] = weights[15] + weights[14] + weights[11] + weights[10] + + weights[7] + weights[6] + weights[3] + weights[2]; + axiscoords[2] = weights[15] + weights[14] + weights[13] + weights[12] + + weights[7] + weights[6] + weights[5] + weights[4]; + axiscoords[3] = weights[15] + weights[14] + weights[13] + weights[12] + + weights[11] + weights[10] + weights[9] + weights[8]; + } + } + + + /*************************************************************************/ + /* */ + /* Just a wrapper around T1_Get_Multi_Master to support the different */ + /* arguments needed by the GX var distortable fonts. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + T1_Get_MM_Var( T1_Face face, + FT_MM_Var* *master ) + { + FT_Memory memory = face->root.memory; + FT_MM_Var *mmvar = NULL; + FT_Multi_Master mmaster; + FT_Error error; + FT_UInt i; + FT_Fixed axiscoords[T1_MAX_MM_AXIS]; + PS_Blend blend = face->blend; + + + error = T1_Get_Multi_Master( face, &mmaster ); + if ( error ) + goto Exit; + if ( FT_ALLOC( mmvar, + sizeof ( FT_MM_Var ) + + mmaster.num_axis * sizeof ( FT_Var_Axis ) ) ) + goto Exit; + + mmvar->num_axis = mmaster.num_axis; + mmvar->num_designs = mmaster.num_designs; + mmvar->num_namedstyles = (FT_UInt)-1; /* Does not apply */ + mmvar->axis = (FT_Var_Axis*)&mmvar[1]; + /* Point to axes after MM_Var struct */ + mmvar->namedstyle = NULL; + + for ( i = 0 ; i < mmaster.num_axis; ++i ) + { + mmvar->axis[i].name = mmaster.axis[i].name; + mmvar->axis[i].minimum = INT_TO_FIXED( mmaster.axis[i].minimum); + mmvar->axis[i].maximum = INT_TO_FIXED( mmaster.axis[i].maximum); + mmvar->axis[i].def = ( mmvar->axis[i].minimum + + mmvar->axis[i].maximum ) / 2; + /* Does not apply. But this value is in range */ + mmvar->axis[i].strid = (FT_UInt)-1; /* Does not apply */ + mmvar->axis[i].tag = (FT_ULong)-1; /* Does not apply */ + + if ( ft_strcmp( mmvar->axis[i].name, "Weight" ) == 0 ) + mmvar->axis[i].tag = FT_MAKE_TAG( 'w', 'g', 'h', 't' ); + else if ( ft_strcmp( mmvar->axis[i].name, "Width" ) == 0 ) + mmvar->axis[i].tag = FT_MAKE_TAG( 'w', 'd', 't', 'h' ); + else if ( ft_strcmp( mmvar->axis[i].name, "OpticalSize" ) == 0 ) + mmvar->axis[i].tag = FT_MAKE_TAG( 'o', 'p', 's', 'z' ); + } + + if ( blend->num_designs == ( 1U << blend->num_axis ) ) + { + mm_weights_unmap( blend->default_weight_vector, + axiscoords, + blend->num_axis ); + + for ( i = 0; i < mmaster.num_axis; ++i ) + mmvar->axis[i].def = mm_axis_unmap( &blend->design_map[i], + axiscoords[i] ); + } + + *master = mmvar; + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Set_MM_Blend( T1_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + PS_Blend blend = face->blend; + FT_Error error; + FT_UInt n, m; + + + error = T1_Err_Invalid_Argument; + + if ( blend && blend->num_axis == num_coords ) + { + /* recompute the weight vector from the blend coordinates */ + error = T1_Err_Ok; + + for ( n = 0; n < blend->num_designs; n++ ) + { + FT_Fixed result = 0x10000L; /* 1.0 fixed */ + + + for ( m = 0; m < blend->num_axis; m++ ) + { + FT_Fixed factor; + + + /* get current blend axis position */ + factor = coords[m]; + if ( factor < 0 ) factor = 0; + if ( factor > 0x10000L ) factor = 0x10000L; + + if ( ( n & ( 1 << m ) ) == 0 ) + factor = 0x10000L - factor; + + result = FT_MulFix( result, factor ); + } + blend->weight_vector[n] = result; + } + + error = T1_Err_Ok; + } + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Set_MM_Design( T1_Face face, + FT_UInt num_coords, + FT_Long* coords ) + { + PS_Blend blend = face->blend; + FT_Error error; + FT_UInt n, p; + + + error = T1_Err_Invalid_Argument; + if ( blend && blend->num_axis == num_coords ) + { + /* compute the blend coordinates through the blend design map */ + FT_Fixed final_blends[T1_MAX_MM_DESIGNS]; + + + for ( n = 0; n < blend->num_axis; n++ ) + { + FT_Long design = coords[n]; + FT_Fixed the_blend; + PS_DesignMap map = blend->design_map + n; + FT_Long* designs = map->design_points; + FT_Fixed* blends = map->blend_points; + FT_Int before = -1, after = -1; + + + for ( p = 0; p < (FT_UInt)map->num_points; p++ ) + { + FT_Long p_design = designs[p]; + + + /* exact match? */ + if ( design == p_design ) + { + the_blend = blends[p]; + goto Found; + } + + if ( design < p_design ) + { + after = p; + break; + } + + before = p; + } + + /* now interpolate if necessary */ + if ( before < 0 ) + the_blend = blends[0]; + + else if ( after < 0 ) + the_blend = blends[map->num_points - 1]; + + else + the_blend = FT_MulDiv( design - designs[before], + blends [after] - blends [before], + designs[after] - designs[before] ); + + Found: + final_blends[n] = the_blend; + } + + error = T1_Set_MM_Blend( face, num_coords, final_blends ); + } + + return error; + } + + + /*************************************************************************/ + /* */ + /* Just a wrapper around T1_Set_MM_Design to support the different */ + /* arguments needed by the GX var distortable fonts. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + T1_Set_Var_Design( T1_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Long lcoords[4]; /* maximum axis count is 4 */ + FT_UInt i; + FT_Error error; + + + error = T1_Err_Invalid_Argument; + if ( num_coords <= 4 && num_coords > 0 ) + { + for ( i = 0; i < num_coords; ++i ) + lcoords[i] = FIXED_TO_INT( coords[i] ); + error = T1_Set_MM_Design( face, num_coords, lcoords ); + } + + return error; + } + + + FT_LOCAL_DEF( void ) + T1_Done_Blend( T1_Face face ) + { + FT_Memory memory = face->root.memory; + PS_Blend blend = face->blend; + + + if ( blend ) + { + FT_UInt num_designs = blend->num_designs; + FT_UInt num_axis = blend->num_axis; + FT_UInt n; + + + /* release design pos table */ + FT_FREE( blend->design_pos[0] ); + for ( n = 1; n < num_designs; n++ ) + blend->design_pos[n] = 0; + + /* release blend `private' and `font info' dictionaries */ + FT_FREE( blend->privates[1] ); + FT_FREE( blend->font_infos[1] ); + FT_FREE( blend->bboxes[1] ); + + for ( n = 0; n < num_designs; n++ ) + { + blend->privates [n] = 0; + blend->font_infos[n] = 0; + blend->bboxes [n] = 0; + } + + /* release weight vectors */ + FT_FREE( blend->weight_vector ); + blend->default_weight_vector = 0; + + /* release axis names */ + for ( n = 0; n < num_axis; n++ ) + FT_FREE( blend->axis_names[n] ); + + /* release design map */ + for ( n = 0; n < num_axis; n++ ) + { + PS_DesignMap dmap = blend->design_map + n; + + + FT_FREE( dmap->design_points ); + dmap->num_points = 0; + } + + FT_FREE( face->blend ); + } + } + + + static void + parse_blend_axis_types( T1_Face face, + T1_Loader loader ) + { + T1_TokenRec axis_tokens[T1_MAX_MM_AXIS]; + FT_Int n, num_axis; + FT_Error error = T1_Err_Ok; + PS_Blend blend; + FT_Memory memory; + + + /* take an array of objects */ + T1_ToTokenArray( &loader->parser, axis_tokens, + T1_MAX_MM_AXIS, &num_axis ); + if ( num_axis < 0 ) + { + error = T1_Err_Ignore; + goto Exit; + } + if ( num_axis == 0 || num_axis > T1_MAX_MM_AXIS ) + { + FT_ERROR(( "parse_blend_axis_types: incorrect number of axes: %d\n", + num_axis )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + /* allocate blend if necessary */ + error = t1_allocate_blend( face, 0, (FT_UInt)num_axis ); + if ( error ) + goto Exit; + + blend = face->blend; + memory = face->root.memory; + + /* each token is an immediate containing the name of the axis */ + for ( n = 0; n < num_axis; n++ ) + { + T1_Token token = axis_tokens + n; + FT_Byte* name; + FT_PtrDist len; + + + /* skip first slash, if any */ + if ( token->start[0] == '/' ) + token->start++; + + len = token->limit - token->start; + if ( len == 0 ) + { + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + if ( FT_ALLOC( blend->axis_names[n], len + 1 ) ) + goto Exit; + + name = (FT_Byte*)blend->axis_names[n]; + FT_MEM_COPY( name, token->start, len ); + name[len] = 0; + } + + Exit: + loader->parser.root.error = error; + } + + + static void + parse_blend_design_positions( T1_Face face, + T1_Loader loader ) + { + T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS]; + FT_Int num_designs; + FT_Int num_axis; + T1_Parser parser = &loader->parser; + + FT_Error error = T1_Err_Ok; + PS_Blend blend; + + + /* get the array of design tokens -- compute number of designs */ + T1_ToTokenArray( parser, design_tokens, + T1_MAX_MM_DESIGNS, &num_designs ); + if ( num_designs < 0 ) + { + error = T1_Err_Ignore; + goto Exit; + } + if ( num_designs == 0 || num_designs > T1_MAX_MM_DESIGNS ) + { + FT_ERROR(( "parse_blend_design_positions:" + " incorrect number of designs: %d\n", + num_designs )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + { + FT_Byte* old_cursor = parser->root.cursor; + FT_Byte* old_limit = parser->root.limit; + FT_Int n; + + + blend = face->blend; + num_axis = 0; /* make compiler happy */ + + for ( n = 0; n < num_designs; n++ ) + { + T1_TokenRec axis_tokens[T1_MAX_MM_AXIS]; + T1_Token token; + FT_Int axis, n_axis; + + + /* read axis/coordinates tokens */ + token = design_tokens + n; + parser->root.cursor = token->start; + parser->root.limit = token->limit; + T1_ToTokenArray( parser, axis_tokens, T1_MAX_MM_AXIS, &n_axis ); + + if ( n == 0 ) + { + if ( n_axis <= 0 || n_axis > T1_MAX_MM_AXIS ) + { + FT_ERROR(( "parse_blend_design_positions:" + " invalid number of axes: %d\n", + n_axis )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + num_axis = n_axis; + error = t1_allocate_blend( face, num_designs, num_axis ); + if ( error ) + goto Exit; + blend = face->blend; + } + else if ( n_axis != num_axis ) + { + FT_ERROR(( "parse_blend_design_positions: incorrect table\n" )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + /* now read each axis token into the design position */ + for ( axis = 0; axis < n_axis; axis++ ) + { + T1_Token token2 = axis_tokens + axis; + + + parser->root.cursor = token2->start; + parser->root.limit = token2->limit; + blend->design_pos[n][axis] = T1_ToFixed( parser, 0 ); + } + } + + loader->parser.root.cursor = old_cursor; + loader->parser.root.limit = old_limit; + } + + Exit: + loader->parser.root.error = error; + } + + + static void + parse_blend_design_map( T1_Face face, + T1_Loader loader ) + { + FT_Error error = T1_Err_Ok; + T1_Parser parser = &loader->parser; + PS_Blend blend; + T1_TokenRec axis_tokens[T1_MAX_MM_AXIS]; + FT_Int n, num_axis; + FT_Byte* old_cursor; + FT_Byte* old_limit; + FT_Memory memory = face->root.memory; + + + T1_ToTokenArray( parser, axis_tokens, + T1_MAX_MM_AXIS, &num_axis ); + if ( num_axis < 0 ) + { + error = T1_Err_Ignore; + goto Exit; + } + if ( num_axis == 0 || num_axis > T1_MAX_MM_AXIS ) + { + FT_ERROR(( "parse_blend_design_map: incorrect number of axes: %d\n", + num_axis )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + old_cursor = parser->root.cursor; + old_limit = parser->root.limit; + + error = t1_allocate_blend( face, 0, num_axis ); + if ( error ) + goto Exit; + blend = face->blend; + + /* now read each axis design map */ + for ( n = 0; n < num_axis; n++ ) + { + PS_DesignMap map = blend->design_map + n; + T1_Token axis_token; + T1_TokenRec point_tokens[T1_MAX_MM_MAP_POINTS]; + FT_Int p, num_points; + + + axis_token = axis_tokens + n; + + parser->root.cursor = axis_token->start; + parser->root.limit = axis_token->limit; + T1_ToTokenArray( parser, point_tokens, + T1_MAX_MM_MAP_POINTS, &num_points ); + + if ( num_points <= 0 || num_points > T1_MAX_MM_MAP_POINTS ) + { + FT_ERROR(( "parse_blend_design_map: incorrect table\n" )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + /* allocate design map data */ + if ( FT_NEW_ARRAY( map->design_points, num_points * 2 ) ) + goto Exit; + map->blend_points = map->design_points + num_points; + map->num_points = (FT_Byte)num_points; + + for ( p = 0; p < num_points; p++ ) + { + T1_Token point_token; + + + point_token = point_tokens + p; + + /* don't include delimiting brackets */ + parser->root.cursor = point_token->start + 1; + parser->root.limit = point_token->limit - 1; + + map->design_points[p] = T1_ToInt( parser ); + map->blend_points [p] = T1_ToFixed( parser, 0 ); + } + } + + parser->root.cursor = old_cursor; + parser->root.limit = old_limit; + + Exit: + parser->root.error = error; + } + + + static void + parse_weight_vector( T1_Face face, + T1_Loader loader ) + { + T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS]; + FT_Int num_designs; + FT_Error error = T1_Err_Ok; + T1_Parser parser = &loader->parser; + PS_Blend blend = face->blend; + T1_Token token; + FT_Int n; + FT_Byte* old_cursor; + FT_Byte* old_limit; + + + T1_ToTokenArray( parser, design_tokens, + T1_MAX_MM_DESIGNS, &num_designs ); + if ( num_designs < 0 ) + { + error = T1_Err_Ignore; + goto Exit; + } + if ( num_designs == 0 || num_designs > T1_MAX_MM_DESIGNS ) + { + FT_ERROR(( "parse_weight_vector:" + " incorrect number of designs: %d\n", + num_designs )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + if ( !blend || !blend->num_designs ) + { + error = t1_allocate_blend( face, num_designs, 0 ); + if ( error ) + goto Exit; + blend = face->blend; + } + else if ( blend->num_designs != (FT_UInt)num_designs ) + { + FT_ERROR(( "parse_weight_vector:" + " /BlendDesignPosition and /WeightVector have\n" + " " + " different number of elements\n" )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + old_cursor = parser->root.cursor; + old_limit = parser->root.limit; + + for ( n = 0; n < num_designs; n++ ) + { + token = design_tokens + n; + parser->root.cursor = token->start; + parser->root.limit = token->limit; + + blend->default_weight_vector[n] = + blend->weight_vector[n] = T1_ToFixed( parser, 0 ); + } + + parser->root.cursor = old_cursor; + parser->root.limit = old_limit; + + Exit: + parser->root.error = error; + } + + + /* e.g., /BuildCharArray [0 0 0 0 0 0 0 0] def */ + /* we're only interested in the number of array elements */ + static void + parse_buildchar( T1_Face face, + T1_Loader loader ) + { + face->len_buildchar = T1_ToFixedArray( &loader->parser, 0, NULL, 0 ); + + return; + } + + +#endif /* !T1_CONFIG_OPTION_NO_MM_SUPPORT */ + + + + + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** TYPE 1 SYMBOL PARSING *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + t1_load_keyword( T1_Face face, + T1_Loader loader, + const T1_Field field ) + { + FT_Error error; + void* dummy_object; + void** objects; + FT_UInt max_objects; + PS_Blend blend = face->blend; + + + if ( blend && blend->num_designs == 0 ) + blend = NULL; + + /* if the keyword has a dedicated callback, call it */ + if ( field->type == T1_FIELD_TYPE_CALLBACK ) + { + field->reader( (FT_Face)face, loader ); + error = loader->parser.root.error; + goto Exit; + } + + /* now, the keyword is either a simple field, or a table of fields; */ + /* we are now going to take care of it */ + switch ( field->location ) + { + case T1_FIELD_LOCATION_FONT_INFO: + dummy_object = &face->type1.font_info; + objects = &dummy_object; + max_objects = 0; + + if ( blend ) + { + objects = (void**)blend->font_infos; + max_objects = blend->num_designs; + } + break; + + case T1_FIELD_LOCATION_FONT_EXTRA: + dummy_object = &face->type1.font_extra; + objects = &dummy_object; + max_objects = 0; + break; + + case T1_FIELD_LOCATION_PRIVATE: + dummy_object = &face->type1.private_dict; + objects = &dummy_object; + max_objects = 0; + + if ( blend ) + { + objects = (void**)blend->privates; + max_objects = blend->num_designs; + } + break; + + case T1_FIELD_LOCATION_BBOX: + dummy_object = &face->type1.font_bbox; + objects = &dummy_object; + max_objects = 0; + + if ( blend ) + { + objects = (void**)blend->bboxes; + max_objects = blend->num_designs; + } + break; + + case T1_FIELD_LOCATION_LOADER: + dummy_object = loader; + objects = &dummy_object; + max_objects = 0; + break; + + case T1_FIELD_LOCATION_FACE: + dummy_object = face; + objects = &dummy_object; + max_objects = 0; + break; + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + case T1_FIELD_LOCATION_BLEND: + dummy_object = face->blend; + objects = &dummy_object; + max_objects = 0; + break; +#endif + + default: + dummy_object = &face->type1; + objects = &dummy_object; + max_objects = 0; + } + + if ( field->type == T1_FIELD_TYPE_INTEGER_ARRAY || + field->type == T1_FIELD_TYPE_FIXED_ARRAY ) + error = T1_Load_Field_Table( &loader->parser, field, + objects, max_objects, 0 ); + else + error = T1_Load_Field( &loader->parser, field, + objects, max_objects, 0 ); + + Exit: + return error; + } + + + static void + parse_private( T1_Face face, + T1_Loader loader ) + { + FT_UNUSED( face ); + + loader->keywords_encountered |= T1_PRIVATE; + } + + + static int + read_binary_data( T1_Parser parser, + FT_Long* size, + FT_Byte** base ) + { + FT_Byte* cur; + FT_Byte* limit = parser->root.limit; + + + /* the binary data has one of the following formats */ + /* */ + /* `size' [white*] RD white ....... ND */ + /* `size' [white*] -| white ....... |- */ + /* */ + + T1_Skip_Spaces( parser ); + + cur = parser->root.cursor; + + if ( cur < limit && ft_isdigit( *cur ) ) + { + FT_Long s = T1_ToInt( parser ); + + + T1_Skip_PS_Token( parser ); /* `RD' or `-|' or something else */ + + /* there is only one whitespace char after the */ + /* `RD' or `-|' token */ + *base = parser->root.cursor + 1; + + if ( s >= 0 && s < limit - *base ) + { + parser->root.cursor += s + 1; + *size = s; + return !parser->root.error; + } + } + + FT_ERROR(( "read_binary_data: invalid size field\n" )); + parser->root.error = T1_Err_Invalid_File_Format; + return 0; + } + + + /* We now define the routines to handle the `/Encoding', `/Subrs', */ + /* and `/CharStrings' dictionaries. */ + + static void + t1_parse_font_matrix( T1_Face face, + T1_Loader loader ) + { + T1_Parser parser = &loader->parser; + FT_Matrix* matrix = &face->type1.font_matrix; + FT_Vector* offset = &face->type1.font_offset; + FT_Face root = (FT_Face)&face->root; + FT_Fixed temp[6]; + FT_Fixed temp_scale; + FT_Int result; + + + result = T1_ToFixedArray( parser, 6, temp, 3 ); + + if ( result < 0 ) + { + parser->root.error = T1_Err_Invalid_File_Format; + return; + } + + temp_scale = FT_ABS( temp[3] ); + + if ( temp_scale == 0 ) + { + FT_ERROR(( "t1_parse_font_matrix: invalid font matrix\n" )); + parser->root.error = T1_Err_Invalid_File_Format; + return; + } + + /* Set Units per EM based on FontMatrix values. We set the value to */ + /* 1000 / temp_scale, because temp_scale was already multiplied by */ + /* 1000 (in t1_tofixed, from psobjs.c). */ + + root->units_per_EM = (FT_UShort)( FT_DivFix( 1000 * 0x10000L, + temp_scale ) >> 16 ); + + /* we need to scale the values by 1.0/temp_scale */ + if ( temp_scale != 0x10000L ) + { + temp[0] = FT_DivFix( temp[0], temp_scale ); + temp[1] = FT_DivFix( temp[1], temp_scale ); + temp[2] = FT_DivFix( temp[2], temp_scale ); + temp[4] = FT_DivFix( temp[4], temp_scale ); + temp[5] = FT_DivFix( temp[5], temp_scale ); + temp[3] = temp[3] < 0 ? -0x10000L : 0x10000L; + } + + matrix->xx = temp[0]; + matrix->yx = temp[1]; + matrix->xy = temp[2]; + matrix->yy = temp[3]; + + /* note that the offsets must be expressed in integer font units */ + offset->x = temp[4] >> 16; + offset->y = temp[5] >> 16; + } + + + static void + parse_encoding( T1_Face face, + T1_Loader loader ) + { + T1_Parser parser = &loader->parser; + FT_Byte* cur; + FT_Byte* limit = parser->root.limit; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + T1_Skip_Spaces( parser ); + cur = parser->root.cursor; + if ( cur >= limit ) + { + FT_ERROR(( "parse_encoding: out of bounds\n" )); + parser->root.error = T1_Err_Invalid_File_Format; + return; + } + + /* if we have a number or `[', the encoding is an array, */ + /* and we must load it now */ + if ( ft_isdigit( *cur ) || *cur == '[' ) + { + T1_Encoding encode = &face->type1.encoding; + FT_Int count, n; + PS_Table char_table = &loader->encoding_table; + FT_Memory memory = parser->root.memory; + FT_Error error; + FT_Bool only_immediates = 0; + + + /* read the number of entries in the encoding; should be 256 */ + if ( *cur == '[' ) + { + count = 256; + only_immediates = 1; + parser->root.cursor++; + } + else + count = (FT_Int)T1_ToInt( parser ); + + T1_Skip_Spaces( parser ); + if ( parser->root.cursor >= limit ) + return; + + /* we use a T1_Table to store our charnames */ + loader->num_chars = encode->num_chars = count; + if ( FT_NEW_ARRAY( encode->char_index, count ) || + FT_NEW_ARRAY( encode->char_name, count ) || + FT_SET_ERROR( psaux->ps_table_funcs->init( + char_table, count, memory ) ) ) + { + parser->root.error = error; + return; + } + + /* We need to `zero' out encoding_table.elements */ + for ( n = 0; n < count; n++ ) + { + char* notdef = (char *)".notdef"; + + + T1_Add_Table( char_table, n, notdef, 8 ); + } + + /* Now we need to read records of the form */ + /* */ + /* ... charcode /charname ... */ + /* */ + /* for each entry in our table. */ + /* */ + /* We simply look for a number followed by an immediate */ + /* name. Note that this ignores correctly the sequence */ + /* that is often seen in type1 fonts: */ + /* */ + /* 0 1 255 { 1 index exch /.notdef put } for dup */ + /* */ + /* used to clean the encoding array before anything else. */ + /* */ + /* Alternatively, if the array is directly given as */ + /* */ + /* /Encoding [ ... ] */ + /* */ + /* we only read immediates. */ + + n = 0; + T1_Skip_Spaces( parser ); + + while ( parser->root.cursor < limit ) + { + cur = parser->root.cursor; + + /* we stop when we encounter a `def' or `]' */ + if ( *cur == 'd' && cur + 3 < limit ) + { + if ( cur[1] == 'e' && + cur[2] == 'f' && + IS_PS_DELIM( cur[3] ) ) + { + FT_TRACE6(( "encoding end\n" )); + cur += 3; + break; + } + } + if ( *cur == ']' ) + { + FT_TRACE6(( "encoding end\n" )); + cur++; + break; + } + + /* check whether we've found an entry */ + if ( ft_isdigit( *cur ) || only_immediates ) + { + FT_Int charcode; + + + if ( only_immediates ) + charcode = n; + else + { + charcode = (FT_Int)T1_ToInt( parser ); + T1_Skip_Spaces( parser ); + } + + cur = parser->root.cursor; + + if ( *cur == '/' && cur + 2 < limit && n < count ) + { + FT_PtrDist len; + + + cur++; + + parser->root.cursor = cur; + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + + len = parser->root.cursor - cur; + + parser->root.error = T1_Add_Table( char_table, charcode, + cur, len + 1 ); + if ( parser->root.error ) + return; + char_table->elements[charcode][len] = '\0'; + + n++; + } + else if ( only_immediates ) + { + /* Since the current position is not updated for */ + /* immediates-only mode we would get an infinite loop if */ + /* we don't do anything here. */ + /* */ + /* This encoding array is not valid according to the type1 */ + /* specification (it might be an encoding for a CID type1 */ + /* font, however), so we conclude that this font is NOT a */ + /* type1 font. */ + parser->root.error = FT_Err_Unknown_File_Format; + return; + } + } + else + { + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + } + + T1_Skip_Spaces( parser ); + } + + face->type1.encoding_type = T1_ENCODING_TYPE_ARRAY; + parser->root.cursor = cur; + } + + /* Otherwise, we should have either `StandardEncoding', */ + /* `ExpertEncoding', or `ISOLatin1Encoding' */ + else + { + if ( cur + 17 < limit && + ft_strncmp( (const char*)cur, "StandardEncoding", 16 ) == 0 ) + face->type1.encoding_type = T1_ENCODING_TYPE_STANDARD; + + else if ( cur + 15 < limit && + ft_strncmp( (const char*)cur, "ExpertEncoding", 14 ) == 0 ) + face->type1.encoding_type = T1_ENCODING_TYPE_EXPERT; + + else if ( cur + 18 < limit && + ft_strncmp( (const char*)cur, "ISOLatin1Encoding", 17 ) == 0 ) + face->type1.encoding_type = T1_ENCODING_TYPE_ISOLATIN1; + + else + parser->root.error = T1_Err_Ignore; + } + } + + + static void + parse_subrs( T1_Face face, + T1_Loader loader ) + { + T1_Parser parser = &loader->parser; + PS_Table table = &loader->subrs; + FT_Memory memory = parser->root.memory; + FT_Error error; + FT_Int num_subrs; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + T1_Skip_Spaces( parser ); + + /* test for empty array */ + if ( parser->root.cursor < parser->root.limit && + *parser->root.cursor == '[' ) + { + T1_Skip_PS_Token( parser ); + T1_Skip_Spaces ( parser ); + if ( parser->root.cursor >= parser->root.limit || + *parser->root.cursor != ']' ) + parser->root.error = T1_Err_Invalid_File_Format; + return; + } + + num_subrs = (FT_Int)T1_ToInt( parser ); + + /* position the parser right before the `dup' of the first subr */ + T1_Skip_PS_Token( parser ); /* `array' */ + if ( parser->root.error ) + return; + T1_Skip_Spaces( parser ); + + /* initialize subrs array -- with synthetic fonts it is possible */ + /* we get here twice */ + if ( !loader->num_subrs ) + { + error = psaux->ps_table_funcs->init( table, num_subrs, memory ); + if ( error ) + goto Fail; + } + + /* the format is simple: */ + /* */ + /* `index' + binary data */ + /* */ + for (;;) + { + FT_Long idx, size; + FT_Byte* base; + + + /* If the next token isn't `dup' we are done. */ + if ( parser->root.cursor + 4 < parser->root.limit && + ft_strncmp( (char*)parser->root.cursor, "dup", 3 ) != 0 ) + break; + + T1_Skip_PS_Token( parser ); /* `dup' */ + + idx = T1_ToInt( parser ); + + if ( !read_binary_data( parser, &size, &base ) ) + return; + + /* The binary string is followed by one token, e.g. `NP' */ + /* (bound to `noaccess put') or by two separate tokens: */ + /* `noaccess' & `put'. We position the parser right */ + /* before the next `dup', if any. */ + T1_Skip_PS_Token( parser ); /* `NP' or `|' or `noaccess' */ + if ( parser->root.error ) + return; + T1_Skip_Spaces ( parser ); + + if ( parser->root.cursor + 4 < parser->root.limit && + ft_strncmp( (char*)parser->root.cursor, "put", 3 ) == 0 ) + { + T1_Skip_PS_Token( parser ); /* skip `put' */ + T1_Skip_Spaces ( parser ); + } + + /* with synthetic fonts it is possible we get here twice */ + if ( loader->num_subrs ) + continue; + + /* some fonts use a value of -1 for lenIV to indicate that */ + /* the charstrings are unencoded */ + /* */ + /* thanks to Tom Kacvinsky for pointing this out */ + /* */ + if ( face->type1.private_dict.lenIV >= 0 ) + { + FT_Byte* temp; + + + /* some fonts define empty subr records -- this is not totally */ + /* compliant to the specification (which says they should at */ + /* least contain a `return'), but we support them anyway */ + if ( size < face->type1.private_dict.lenIV ) + { + error = T1_Err_Invalid_File_Format; + goto Fail; + } + + /* t1_decrypt() shouldn't write to base -- make temporary copy */ + if ( FT_ALLOC( temp, size ) ) + goto Fail; + FT_MEM_COPY( temp, base, size ); + psaux->t1_decrypt( temp, size, 4330 ); + size -= face->type1.private_dict.lenIV; + error = T1_Add_Table( table, (FT_Int)idx, + temp + face->type1.private_dict.lenIV, size ); + FT_FREE( temp ); + } + else + error = T1_Add_Table( table, (FT_Int)idx, base, size ); + if ( error ) + goto Fail; + } + + if ( !loader->num_subrs ) + loader->num_subrs = num_subrs; + + return; + + Fail: + parser->root.error = error; + } + + +#define TABLE_EXTEND 5 + + + static void + parse_charstrings( T1_Face face, + T1_Loader loader ) + { + T1_Parser parser = &loader->parser; + PS_Table code_table = &loader->charstrings; + PS_Table name_table = &loader->glyph_names; + PS_Table swap_table = &loader->swap_table; + FT_Memory memory = parser->root.memory; + FT_Error error; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + FT_Byte* cur; + FT_Byte* limit = parser->root.limit; + FT_Int n, num_glyphs; + FT_UInt notdef_index = 0; + FT_Byte notdef_found = 0; + + + num_glyphs = (FT_Int)T1_ToInt( parser ); + /* some fonts like Optima-Oblique not only define the /CharStrings */ + /* array but access it also */ + if ( num_glyphs == 0 || parser->root.error ) + return; + + /* initialize tables, leaving space for addition of .notdef, */ + /* if necessary, and a few other glyphs to handle buggy */ + /* fonts which have more glyphs than specified. */ + + /* for some non-standard fonts like `Optima' which provides */ + /* different outlines depending on the resolution it is */ + /* possible to get here twice */ + if ( !loader->num_glyphs ) + { + error = psaux->ps_table_funcs->init( + code_table, num_glyphs + 1 + TABLE_EXTEND, memory ); + if ( error ) + goto Fail; + + error = psaux->ps_table_funcs->init( + name_table, num_glyphs + 1 + TABLE_EXTEND, memory ); + if ( error ) + goto Fail; + + /* Initialize table for swapping index notdef_index and */ + /* index 0 names and codes (if necessary). */ + + error = psaux->ps_table_funcs->init( swap_table, 4, memory ); + if ( error ) + goto Fail; + } + + n = 0; + + for (;;) + { + FT_Long size; + FT_Byte* base; + + + /* the format is simple: */ + /* `/glyphname' + binary data */ + + T1_Skip_Spaces( parser ); + + cur = parser->root.cursor; + if ( cur >= limit ) + break; + + /* we stop when we find a `def' or `end' keyword */ + if ( cur + 3 < limit && IS_PS_DELIM( cur[3] ) ) + { + if ( cur[0] == 'd' && + cur[1] == 'e' && + cur[2] == 'f' ) + { + /* There are fonts which have this: */ + /* */ + /* /CharStrings 118 dict def */ + /* Private begin */ + /* CharStrings begin */ + /* ... */ + /* */ + /* To catch this we ignore `def' if */ + /* no charstring has actually been */ + /* seen. */ + if ( n ) + break; + } + + if ( cur[0] == 'e' && + cur[1] == 'n' && + cur[2] == 'd' ) + break; + } + + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + + if ( *cur == '/' ) + { + FT_PtrDist len; + + + if ( cur + 1 >= limit ) + { + error = T1_Err_Invalid_File_Format; + goto Fail; + } + + cur++; /* skip `/' */ + len = parser->root.cursor - cur; + + if ( !read_binary_data( parser, &size, &base ) ) + return; + + /* for some non-standard fonts like `Optima' which provides */ + /* different outlines depending on the resolution it is */ + /* possible to get here twice */ + if ( loader->num_glyphs ) + continue; + + error = T1_Add_Table( name_table, n, cur, len + 1 ); + if ( error ) + goto Fail; + + /* add a trailing zero to the name table */ + name_table->elements[n][len] = '\0'; + + /* record index of /.notdef */ + if ( *cur == '.' && + ft_strcmp( ".notdef", + (const char*)(name_table->elements[n]) ) == 0 ) + { + notdef_index = n; + notdef_found = 1; + } + + if ( face->type1.private_dict.lenIV >= 0 && + n < num_glyphs + TABLE_EXTEND ) + { + FT_Byte* temp; + + + if ( size <= face->type1.private_dict.lenIV ) + { + error = T1_Err_Invalid_File_Format; + goto Fail; + } + + /* t1_decrypt() shouldn't write to base -- make temporary copy */ + if ( FT_ALLOC( temp, size ) ) + goto Fail; + FT_MEM_COPY( temp, base, size ); + psaux->t1_decrypt( temp, size, 4330 ); + size -= face->type1.private_dict.lenIV; + error = T1_Add_Table( code_table, n, + temp + face->type1.private_dict.lenIV, size ); + FT_FREE( temp ); + } + else + error = T1_Add_Table( code_table, n, base, size ); + if ( error ) + goto Fail; + + n++; + } + } + + loader->num_glyphs = n; + + /* if /.notdef is found but does not occupy index 0, do our magic. */ + if ( notdef_found && + ft_strcmp( ".notdef", (const char*)name_table->elements[0] ) ) + { + /* Swap glyph in index 0 with /.notdef glyph. First, add index 0 */ + /* name and code entries to swap_table. Then place notdef_index */ + /* name and code entries into swap_table. Then swap name and code */ + /* entries at indices notdef_index and 0 using values stored in */ + /* swap_table. */ + + /* Index 0 name */ + error = T1_Add_Table( swap_table, 0, + name_table->elements[0], + name_table->lengths [0] ); + if ( error ) + goto Fail; + + /* Index 0 code */ + error = T1_Add_Table( swap_table, 1, + code_table->elements[0], + code_table->lengths [0] ); + if ( error ) + goto Fail; + + /* Index notdef_index name */ + error = T1_Add_Table( swap_table, 2, + name_table->elements[notdef_index], + name_table->lengths [notdef_index] ); + if ( error ) + goto Fail; + + /* Index notdef_index code */ + error = T1_Add_Table( swap_table, 3, + code_table->elements[notdef_index], + code_table->lengths [notdef_index] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( name_table, notdef_index, + swap_table->elements[0], + swap_table->lengths [0] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( code_table, notdef_index, + swap_table->elements[1], + swap_table->lengths [1] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( name_table, 0, + swap_table->elements[2], + swap_table->lengths [2] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( code_table, 0, + swap_table->elements[3], + swap_table->lengths [3] ); + if ( error ) + goto Fail; + + } + else if ( !notdef_found ) + { + /* notdef_index is already 0, or /.notdef is undefined in */ + /* charstrings dictionary. Worry about /.notdef undefined. */ + /* We take index 0 and add it to the end of the table(s) */ + /* and add our own /.notdef glyph to index 0. */ + + /* 0 333 hsbw endchar */ + FT_Byte notdef_glyph[] = { 0x8B, 0xF7, 0xE1, 0x0D, 0x0E }; + char* notdef_name = (char *)".notdef"; + + + error = T1_Add_Table( swap_table, 0, + name_table->elements[0], + name_table->lengths [0] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( swap_table, 1, + code_table->elements[0], + code_table->lengths [0] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( name_table, 0, notdef_name, 8 ); + if ( error ) + goto Fail; + + error = T1_Add_Table( code_table, 0, notdef_glyph, 5 ); + + if ( error ) + goto Fail; + + error = T1_Add_Table( name_table, n, + swap_table->elements[0], + swap_table->lengths [0] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( code_table, n, + swap_table->elements[1], + swap_table->lengths [1] ); + if ( error ) + goto Fail; + + /* we added a glyph. */ + loader->num_glyphs += 1; + } + + return; + + Fail: + parser->root.error = error; + } + + + /*************************************************************************/ + /* */ + /* Define the token field static variables. This is a set of */ + /* T1_FieldRec variables. */ + /* */ + /*************************************************************************/ + + + static + const T1_FieldRec t1_keywords[] = + { + +#include "t1tokens.h" + + /* now add the special functions... */ + T1_FIELD_CALLBACK( "FontMatrix", t1_parse_font_matrix, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_CALLBACK( "Encoding", parse_encoding, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_CALLBACK( "Subrs", parse_subrs, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_CALLBACK( "CharStrings", parse_charstrings, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_CALLBACK( "Private", parse_private, + T1_FIELD_DICT_FONTDICT ) + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + T1_FIELD_CALLBACK( "BlendDesignPositions", parse_blend_design_positions, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_CALLBACK( "BlendDesignMap", parse_blend_design_map, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_CALLBACK( "BlendAxisTypes", parse_blend_axis_types, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_CALLBACK( "WeightVector", parse_weight_vector, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_CALLBACK( "BuildCharArray", parse_buildchar, + T1_FIELD_DICT_PRIVATE ) +#endif + + { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 } + }; + + +#define T1_FIELD_COUNT \ + ( sizeof ( t1_keywords ) / sizeof ( t1_keywords[0] ) ) + + + static FT_Error + parse_dict( T1_Face face, + T1_Loader loader, + FT_Byte* base, + FT_Long size ) + { + T1_Parser parser = &loader->parser; + FT_Byte *limit, *start_binary = NULL; + FT_Bool have_integer = 0; + + + parser->root.cursor = base; + parser->root.limit = base + size; + parser->root.error = T1_Err_Ok; + + limit = parser->root.limit; + + T1_Skip_Spaces( parser ); + + while ( parser->root.cursor < limit ) + { + FT_Byte* cur; + + + cur = parser->root.cursor; + + /* look for `eexec' */ + if ( IS_PS_TOKEN( cur, limit, "eexec" ) ) + break; + + /* look for `closefile' which ends the eexec section */ + else if ( IS_PS_TOKEN( cur, limit, "closefile" ) ) + break; + + /* in a synthetic font the base font starts after a */ + /* `FontDictionary' token that is placed after a Private dict */ + else if ( IS_PS_TOKEN( cur, limit, "FontDirectory" ) ) + { + if ( loader->keywords_encountered & T1_PRIVATE ) + loader->keywords_encountered |= + T1_FONTDIR_AFTER_PRIVATE; + parser->root.cursor += 13; + } + + /* check whether we have an integer */ + else if ( ft_isdigit( *cur ) ) + { + start_binary = cur; + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + have_integer = 1; + } + + /* in valid Type 1 fonts we don't see `RD' or `-|' directly */ + /* since those tokens are handled by parse_subrs and */ + /* parse_charstrings */ + else if ( *cur == 'R' && cur + 6 < limit && *(cur + 1) == 'D' && + have_integer ) + { + FT_Long s; + FT_Byte* b; + + + parser->root.cursor = start_binary; + if ( !read_binary_data( parser, &s, &b ) ) + return T1_Err_Invalid_File_Format; + have_integer = 0; + } + + else if ( *cur == '-' && cur + 6 < limit && *(cur + 1) == '|' && + have_integer ) + { + FT_Long s; + FT_Byte* b; + + + parser->root.cursor = start_binary; + if ( !read_binary_data( parser, &s, &b ) ) + return T1_Err_Invalid_File_Format; + have_integer = 0; + } + + /* look for immediates */ + else if ( *cur == '/' && cur + 2 < limit ) + { + FT_PtrDist len; + + + cur++; + + parser->root.cursor = cur; + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + + len = parser->root.cursor - cur; + + if ( len > 0 && len < 22 && parser->root.cursor < limit ) + { + /* now compare the immediate name to the keyword table */ + T1_Field keyword = (T1_Field)t1_keywords; + + + for (;;) + { + FT_Byte* name; + + + name = (FT_Byte*)keyword->ident; + if ( !name ) + break; + + if ( cur[0] == name[0] && + len == (FT_PtrDist)ft_strlen( (const char *)name ) && + ft_memcmp( cur, name, len ) == 0 ) + { + /* We found it -- run the parsing callback! */ + /* We record every instance of every field */ + /* (until we reach the base font of a */ + /* synthetic font) to deal adequately with */ + /* multiple master fonts; this is also */ + /* necessary because later PostScript */ + /* definitions override earlier ones. */ + + /* Once we encounter `FontDirectory' after */ + /* `/Private', we know that this is a synthetic */ + /* font; except for `/CharStrings' we are not */ + /* interested in anything that follows this */ + /* `FontDirectory'. */ + + /* MM fonts have more than one /Private token at */ + /* the top level; let's hope that all the junk */ + /* that follows the first /Private token is not */ + /* interesting to us. */ + + /* According to Adobe Tech Note #5175 (CID-Keyed */ + /* Font Installation for ATM Software) a `begin' */ + /* must be followed by exactly one `end', and */ + /* `begin' -- `end' pairs must be accurately */ + /* paired. We could use this to distinguish */ + /* between the global Private and the Private */ + /* dict that is a member of the Blend dict. */ + + const FT_UInt dict = + ( loader->keywords_encountered & T1_PRIVATE ) + ? T1_FIELD_DICT_PRIVATE + : T1_FIELD_DICT_FONTDICT; + + if ( !( dict & keyword->dict ) ) + { + FT_TRACE1(( "parse_dict: found %s but ignoring it " + "since it is in the wrong dictionary\n", + keyword->ident )); + break; + } + + if ( !( loader->keywords_encountered & + T1_FONTDIR_AFTER_PRIVATE ) || + ft_strcmp( (const char*)name, "CharStrings" ) == 0 ) + { + parser->root.error = t1_load_keyword( face, + loader, + keyword ); + if ( parser->root.error != T1_Err_Ok ) + { + if ( FT_ERROR_BASE( parser->root.error ) == FT_Err_Ignore ) + parser->root.error = T1_Err_Ok; + else + return parser->root.error; + } + } + break; + } + + keyword++; + } + } + + have_integer = 0; + } + else + { + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + have_integer = 0; + } + + T1_Skip_Spaces( parser ); + } + + Exit: + return parser->root.error; + } + + + static void + t1_init_loader( T1_Loader loader, + T1_Face face ) + { + FT_UNUSED( face ); + + FT_MEM_ZERO( loader, sizeof ( *loader ) ); + loader->num_glyphs = 0; + loader->num_chars = 0; + + /* initialize the tables -- simply set their `init' field to 0 */ + loader->encoding_table.init = 0; + loader->charstrings.init = 0; + loader->glyph_names.init = 0; + loader->subrs.init = 0; + loader->swap_table.init = 0; + loader->fontdata = 0; + loader->keywords_encountered = 0; + } + + + static void + t1_done_loader( T1_Loader loader ) + { + T1_Parser parser = &loader->parser; + + + /* finalize tables */ + T1_Release_Table( &loader->encoding_table ); + T1_Release_Table( &loader->charstrings ); + T1_Release_Table( &loader->glyph_names ); + T1_Release_Table( &loader->swap_table ); + T1_Release_Table( &loader->subrs ); + + /* finalize parser */ + T1_Finalize_Parser( parser ); + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Open_Face( T1_Face face ) + { + T1_LoaderRec loader; + T1_Parser parser; + T1_Font type1 = &face->type1; + PS_Private priv = &type1->private_dict; + FT_Error error; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + t1_init_loader( &loader, face ); + + /* default values */ + face->ndv_idx = -1; + face->cdv_idx = -1; + face->len_buildchar = 0; + + priv->blue_shift = 7; + priv->blue_fuzz = 1; + priv->lenIV = 4; + priv->expansion_factor = (FT_Fixed)( 0.06 * 0x10000L ); + priv->blue_scale = (FT_Fixed)( 0.039625 * 0x10000L * 1000 ); + + parser = &loader.parser; + error = T1_New_Parser( parser, + face->root.stream, + face->root.memory, + psaux ); + if ( error ) + goto Exit; + + error = parse_dict( face, &loader, + parser->base_dict, parser->base_len ); + if ( error ) + goto Exit; + + error = T1_Get_Private_Dict( parser, psaux ); + if ( error ) + goto Exit; + + error = parse_dict( face, &loader, + parser->private_dict, parser->private_len ); + if ( error ) + goto Exit; + + /* ensure even-ness of `num_blue_values' */ + priv->num_blue_values &= ~1; + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + + if ( face->blend && + face->blend->num_default_design_vector != 0 && + face->blend->num_default_design_vector != face->blend->num_axis ) + { + /* we don't use it currently so just warn, reset, and ignore */ + FT_ERROR(( "T1_Open_Face(): /DesignVector contains %u entries " + "while there are %u axes.\n", + face->blend->num_default_design_vector, + face->blend->num_axis )); + + face->blend->num_default_design_vector = 0; + } + + /* the following can happen for MM instances; we then treat the */ + /* font as a normal PS font */ + if ( face->blend && + ( !face->blend->num_designs || !face->blend->num_axis ) ) + T1_Done_Blend( face ); + + /* another safety check */ + if ( face->blend ) + { + FT_UInt i; + + + for ( i = 0; i < face->blend->num_axis; i++ ) + if ( !face->blend->design_map[i].num_points ) + { + T1_Done_Blend( face ); + break; + } + } + + if ( face->blend ) + { + if ( face->len_buildchar > 0 ) + { + FT_Memory memory = face->root.memory; + + + if ( FT_NEW_ARRAY( face->buildchar, face->len_buildchar ) ) + { + FT_ERROR(( "T1_Open_Face: cannot allocate BuildCharArray\n" )); + face->len_buildchar = 0; + goto Exit; + } + } + } + else + face->len_buildchar = 0; + +#endif /* !T1_CONFIG_OPTION_NO_MM_SUPPORT */ + + /* now, propagate the subrs, charstrings, and glyphnames tables */ + /* to the Type1 data */ + type1->num_glyphs = loader.num_glyphs; + + if ( loader.subrs.init ) + { + loader.subrs.init = 0; + type1->num_subrs = loader.num_subrs; + type1->subrs_block = loader.subrs.block; + type1->subrs = loader.subrs.elements; + type1->subrs_len = loader.subrs.lengths; + } + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + if ( !face->root.internal->incremental_interface ) +#endif + if ( !loader.charstrings.init ) + { + FT_ERROR(( "T1_Open_Face: no `/CharStrings' array in face\n" )); + error = T1_Err_Invalid_File_Format; + } + + loader.charstrings.init = 0; + type1->charstrings_block = loader.charstrings.block; + type1->charstrings = loader.charstrings.elements; + type1->charstrings_len = loader.charstrings.lengths; + + /* we copy the glyph names `block' and `elements' fields; */ + /* the `lengths' field must be released later */ + type1->glyph_names_block = loader.glyph_names.block; + type1->glyph_names = (FT_String**)loader.glyph_names.elements; + loader.glyph_names.block = 0; + loader.glyph_names.elements = 0; + + /* we must now build type1.encoding when we have a custom array */ + if ( type1->encoding_type == T1_ENCODING_TYPE_ARRAY ) + { + FT_Int charcode, idx, min_char, max_char; + FT_Byte* char_name; + FT_Byte* glyph_name; + + + /* OK, we do the following: for each element in the encoding */ + /* table, look up the index of the glyph having the same name */ + /* the index is then stored in type1.encoding.char_index, and */ + /* the name to type1.encoding.char_name */ + + min_char = 0; + max_char = 0; + + charcode = 0; + for ( ; charcode < loader.encoding_table.max_elems; charcode++ ) + { + type1->encoding.char_index[charcode] = 0; + type1->encoding.char_name [charcode] = (char *)".notdef"; + + char_name = loader.encoding_table.elements[charcode]; + if ( char_name ) + for ( idx = 0; idx < type1->num_glyphs; idx++ ) + { + glyph_name = (FT_Byte*)type1->glyph_names[idx]; + if ( ft_strcmp( (const char*)char_name, + (const char*)glyph_name ) == 0 ) + { + type1->encoding.char_index[charcode] = (FT_UShort)idx; + type1->encoding.char_name [charcode] = (char*)glyph_name; + + /* Change min/max encoded char only if glyph name is */ + /* not /.notdef */ + if ( ft_strcmp( (const char*)".notdef", + (const char*)glyph_name ) != 0 ) + { + if ( charcode < min_char ) + min_char = charcode; + if ( charcode >= max_char ) + max_char = charcode + 1; + } + break; + } + } + } + + type1->encoding.code_first = min_char; + type1->encoding.code_last = max_char; + type1->encoding.num_chars = loader.num_chars; + } + + Exit: + t1_done_loader( &loader ); + return error; + } + + +/* END */ diff --git a/src/type1/t1load.h b/src/type1/t1load.h new file mode 100644 index 0000000..546fc33 --- /dev/null +++ b/src/type1/t1load.h @@ -0,0 +1,102 @@ +/***************************************************************************/ +/* */ +/* t1load.h */ +/* */ +/* Type 1 font loader (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2004, 2006, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1LOAD_H__ +#define __T1LOAD_H__ + + +#include +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H +#include FT_MULTIPLE_MASTERS_H + +#include "t1parse.h" + + +FT_BEGIN_HEADER + + + typedef struct T1_Loader_ + { + T1_ParserRec parser; /* parser used to read the stream */ + + FT_Int num_chars; /* number of characters in encoding */ + PS_TableRec encoding_table; /* PS_Table used to store the */ + /* encoding character names */ + + FT_Int num_glyphs; + PS_TableRec glyph_names; + PS_TableRec charstrings; + PS_TableRec swap_table; /* For moving .notdef glyph to index 0. */ + + FT_Int num_subrs; + PS_TableRec subrs; + FT_Bool fontdata; + + FT_UInt keywords_encountered; /* T1_LOADER_ENCOUNTERED_XXX */ + + } T1_LoaderRec, *T1_Loader; + + + /* treatment of some keywords differs depending on whether */ + /* they precede or follow certain other keywords */ + +#define T1_PRIVATE ( 1 << 0 ) +#define T1_FONTDIR_AFTER_PRIVATE ( 1 << 1 ) + + + FT_LOCAL( FT_Error ) + T1_Open_Face( T1_Face face ); + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + + FT_LOCAL( FT_Error ) + T1_Get_Multi_Master( T1_Face face, + FT_Multi_Master* master ); + + FT_LOCAL_DEF( FT_Error ) + T1_Get_MM_Var( T1_Face face, + FT_MM_Var* *master ); + + FT_LOCAL( FT_Error ) + T1_Set_MM_Blend( T1_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + FT_LOCAL( FT_Error ) + T1_Set_MM_Design( T1_Face face, + FT_UInt num_coords, + FT_Long* coords ); + + FT_LOCAL_DEF( FT_Error ) + T1_Set_Var_Design( T1_Face face, + FT_UInt num_coords, + FT_Fixed* coords ); + + FT_LOCAL( void ) + T1_Done_Blend( T1_Face face ); + +#endif /* !T1_CONFIG_OPTION_NO_MM_SUPPORT */ + + +FT_END_HEADER + +#endif /* __T1LOAD_H__ */ + + +/* END */ diff --git a/src/type1/t1objs.c b/src/type1/t1objs.c new file mode 100644 index 0000000..b685f2f --- /dev/null +++ b/src/type1/t1objs.c @@ -0,0 +1,615 @@ +/***************************************************************************/ +/* */ +/* t1objs.c */ +/* */ +/* Type 1 objects manager (body). */ +/* */ +/* Copyright 1996-2009, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_IDS_H + +#include "t1gload.h" +#include "t1load.h" + +#include "t1errors.h" + +#ifndef T1_CONFIG_OPTION_NO_AFM +#include "t1afm.h" +#endif + +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1objs + + + /*************************************************************************/ + /* */ + /* SIZE FUNCTIONS */ + /* */ + /* note that we store the global hints in the size's "internal" root */ + /* field */ + /* */ + /*************************************************************************/ + + + static PSH_Globals_Funcs + T1_Size_Get_Globals_Funcs( T1_Size size ) + { + T1_Face face = (T1_Face)size->root.face; + PSHinter_Service pshinter = (PSHinter_Service)face->pshinter; + FT_Module module; + + + module = FT_Get_Module( size->root.face->driver->root.library, + "pshinter" ); + return ( module && pshinter && pshinter->get_globals_funcs ) + ? pshinter->get_globals_funcs( module ) + : 0 ; + } + + + FT_LOCAL_DEF( void ) + T1_Size_Done( FT_Size t1size ) /* T1_Size */ + { + T1_Size size = (T1_Size)t1size; + + + if ( size->root.internal ) + { + PSH_Globals_Funcs funcs; + + + funcs = T1_Size_Get_Globals_Funcs( size ); + if ( funcs ) + funcs->destroy( (PSH_Globals)size->root.internal ); + + size->root.internal = 0; + } + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Size_Init( FT_Size t1size ) /* T1_Size */ + { + T1_Size size = (T1_Size)t1size; + FT_Error error = T1_Err_Ok; + PSH_Globals_Funcs funcs = T1_Size_Get_Globals_Funcs( size ); + + + if ( funcs ) + { + PSH_Globals globals; + T1_Face face = (T1_Face)size->root.face; + + + error = funcs->create( size->root.face->memory, + &face->type1.private_dict, &globals ); + if ( !error ) + size->root.internal = (FT_Size_Internal)(void*)globals; + } + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Size_Request( FT_Size t1size, /* T1_Size */ + FT_Size_Request req ) + { + T1_Size size = (T1_Size)t1size; + PSH_Globals_Funcs funcs = T1_Size_Get_Globals_Funcs( size ); + + + FT_Request_Metrics( size->root.face, req ); + + if ( funcs ) + funcs->set_scale( (PSH_Globals)size->root.internal, + size->root.metrics.x_scale, + size->root.metrics.y_scale, + 0, 0 ); + + return T1_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* SLOT FUNCTIONS */ + /* */ + /*************************************************************************/ + + FT_LOCAL_DEF( void ) + T1_GlyphSlot_Done( FT_GlyphSlot slot ) + { + slot->internal->glyph_hints = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_GlyphSlot_Init( FT_GlyphSlot slot ) + { + T1_Face face; + PSHinter_Service pshinter; + + + face = (T1_Face)slot->face; + pshinter = (PSHinter_Service)face->pshinter; + + if ( pshinter ) + { + FT_Module module; + + + module = FT_Get_Module( slot->face->driver->root.library, + "pshinter" ); + if ( module ) + { + T1_Hints_Funcs funcs; + + + funcs = pshinter->get_t1_funcs( module ); + slot->internal->glyph_hints = (void*)funcs; + } + } + + return 0; + } + + + /*************************************************************************/ + /* */ + /* FACE FUNCTIONS */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* T1_Face_Done */ + /* */ + /* */ + /* The face object destructor. */ + /* */ + /* */ + /* face :: A typeless pointer to the face object to destroy. */ + /* */ + FT_LOCAL_DEF( void ) + T1_Face_Done( FT_Face t1face ) /* T1_Face */ + { + T1_Face face = (T1_Face)t1face; + FT_Memory memory; + T1_Font type1; + + + if ( !face ) + return; + + memory = face->root.memory; + type1 = &face->type1; + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + /* release multiple masters information */ + FT_ASSERT( ( face->len_buildchar == 0 ) == ( face->buildchar == NULL ) ); + + if ( face->buildchar ) + { + FT_FREE( face->buildchar ); + + face->buildchar = NULL; + face->len_buildchar = 0; + } + + T1_Done_Blend( face ); + face->blend = 0; +#endif + + /* release font info strings */ + { + PS_FontInfo info = &type1->font_info; + + + FT_FREE( info->version ); + FT_FREE( info->notice ); + FT_FREE( info->full_name ); + FT_FREE( info->family_name ); + FT_FREE( info->weight ); + } + + /* release top dictionary */ + FT_FREE( type1->charstrings_len ); + FT_FREE( type1->charstrings ); + FT_FREE( type1->glyph_names ); + + FT_FREE( type1->subrs ); + FT_FREE( type1->subrs_len ); + + FT_FREE( type1->subrs_block ); + FT_FREE( type1->charstrings_block ); + FT_FREE( type1->glyph_names_block ); + + FT_FREE( type1->encoding.char_index ); + FT_FREE( type1->encoding.char_name ); + FT_FREE( type1->font_name ); + +#ifndef T1_CONFIG_OPTION_NO_AFM + /* release afm data if present */ + if ( face->afm_data ) + T1_Done_Metrics( memory, (AFM_FontInfo)face->afm_data ); +#endif + + /* release unicode map, if any */ +#if 0 + FT_FREE( face->unicode_map_rec.maps ); + face->unicode_map_rec.num_maps = 0; + face->unicode_map = NULL; +#endif + + face->root.family_name = NULL; + face->root.style_name = NULL; + } + + + /*************************************************************************/ + /* */ + /* */ + /* T1_Face_Init */ + /* */ + /* */ + /* The face object constructor. */ + /* */ + /* */ + /* stream :: input stream where to load font data. */ + /* */ + /* face_index :: The index of the font face in the resource. */ + /* */ + /* num_params :: Number of additional generic parameters. Ignored. */ + /* */ + /* params :: Additional generic parameters. Ignored. */ + /* */ + /* */ + /* face :: The face record to build. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + T1_Face_Init( FT_Stream stream, + FT_Face t1face, /* T1_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + T1_Face face = (T1_Face)t1face; + FT_Error error; + FT_Service_PsCMaps psnames; + PSAux_Service psaux; + T1_Font type1 = &face->type1; + PS_FontInfo info = &type1->font_info; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + FT_UNUSED( stream ); + + + face->root.num_faces = 1; + + FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); + face->psnames = psnames; + + face->psaux = FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), + "psaux" ); + psaux = (PSAux_Service)face->psaux; + if ( !psaux ) + { + FT_ERROR(( "T1_Face_Init: cannot access `psaux' module\n" )); + error = T1_Err_Missing_Module; + goto Exit; + } + + face->pshinter = FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), + "pshinter" ); + + FT_TRACE2(( "Type 1 driver\n" )); + + /* open the tokenizer; this will also check the font format */ + error = T1_Open_Face( face ); + if ( error ) + goto Exit; + + /* if we just wanted to check the format, leave successfully now */ + if ( face_index < 0 ) + goto Exit; + + /* check the face index */ + if ( face_index > 0 ) + { + FT_ERROR(( "T1_Face_Init: invalid face index\n" )); + error = T1_Err_Invalid_Argument; + goto Exit; + } + + /* now load the font program into the face object */ + + /* initialize the face object fields */ + + /* set up root face fields */ + { + FT_Face root = (FT_Face)&face->root; + + + root->num_glyphs = type1->num_glyphs; + root->face_index = 0; + + root->face_flags = FT_FACE_FLAG_SCALABLE | + FT_FACE_FLAG_HORIZONTAL | + FT_FACE_FLAG_GLYPH_NAMES | + FT_FACE_FLAG_HINTER; + + if ( info->is_fixed_pitch ) + root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + if ( face->blend ) + root->face_flags |= FT_FACE_FLAG_MULTIPLE_MASTERS; + + /* XXX: TODO -- add kerning with .afm support */ + + + /* The following code to extract the family and the style is very */ + /* simplistic and might get some things wrong. For a full-featured */ + /* algorithm you might have a look at the whitepaper given at */ + /* */ + /* http://blogs.msdn.com/text/archive/2007/04/23/wpf-font-selection-model.aspx */ + + /* get style name -- be careful, some broken fonts only */ + /* have a `/FontName' dictionary entry! */ + root->family_name = info->family_name; + root->style_name = NULL; + + if ( root->family_name ) + { + char* full = info->full_name; + char* family = root->family_name; + + + if ( full ) + { + FT_Bool the_same = TRUE; + + + while ( *full ) + { + if ( *full == *family ) + { + family++; + full++; + } + else + { + if ( *full == ' ' || *full == '-' ) + full++; + else if ( *family == ' ' || *family == '-' ) + family++; + else + { + the_same = FALSE; + + if ( !*family ) + root->style_name = full; + break; + } + } + } + + if ( the_same ) + root->style_name = (char *)"Regular"; + } + } + else + { + /* do we have a `/FontName'? */ + if ( type1->font_name ) + root->family_name = type1->font_name; + } + + if ( !root->style_name ) + { + if ( info->weight ) + root->style_name = info->weight; + else + /* assume `Regular' style because we don't know better */ + root->style_name = (char *)"Regular"; + } + + /* compute style flags */ + root->style_flags = 0; + if ( info->italic_angle ) + root->style_flags |= FT_STYLE_FLAG_ITALIC; + if ( info->weight ) + { + if ( !ft_strcmp( info->weight, "Bold" ) || + !ft_strcmp( info->weight, "Black" ) ) + root->style_flags |= FT_STYLE_FLAG_BOLD; + } + + /* no embedded bitmap support */ + root->num_fixed_sizes = 0; + root->available_sizes = 0; + + root->bbox.xMin = type1->font_bbox.xMin >> 16; + root->bbox.yMin = type1->font_bbox.yMin >> 16; + /* no `U' suffix here to 0xFFFF! */ + root->bbox.xMax = ( type1->font_bbox.xMax + 0xFFFF ) >> 16; + root->bbox.yMax = ( type1->font_bbox.yMax + 0xFFFF ) >> 16; + + /* Set units_per_EM if we didn't set it in t1_parse_font_matrix. */ + if ( !root->units_per_EM ) + root->units_per_EM = 1000; + + root->ascender = (FT_Short)( root->bbox.yMax ); + root->descender = (FT_Short)( root->bbox.yMin ); + + root->height = (FT_Short)( ( root->units_per_EM * 12 ) / 10 ); + if ( root->height < root->ascender - root->descender ) + root->height = (FT_Short)( root->ascender - root->descender ); + + /* now compute the maximum advance width */ + root->max_advance_width = + (FT_Short)( root->bbox.xMax ); + { + FT_Pos max_advance; + + + error = T1_Compute_Max_Advance( face, &max_advance ); + + /* in case of error, keep the standard width */ + if ( !error ) + root->max_advance_width = (FT_Short)FIXED_TO_INT( max_advance ); + else + error = T1_Err_Ok; /* clear error */ + } + + root->max_advance_height = root->height; + + root->underline_position = (FT_Short)info->underline_position; + root->underline_thickness = (FT_Short)info->underline_thickness; + } + + { + FT_Face root = &face->root; + + + if ( psnames ) + { + FT_CharMapRec charmap; + T1_CMap_Classes cmap_classes = psaux->t1_cmap_classes; + FT_CMap_Class clazz; + + + charmap.face = root; + + /* first of all, try to synthesize a Unicode charmap */ + charmap.platform_id = TT_PLATFORM_MICROSOFT; + charmap.encoding_id = TT_MS_ID_UNICODE_CS; + charmap.encoding = FT_ENCODING_UNICODE; + + error = FT_CMap_New( cmap_classes->unicode, NULL, &charmap, NULL ); + if ( error && FT_Err_No_Unicode_Glyph_Name != error ) + goto Exit; + error = FT_Err_Ok; + + /* now, generate an Adobe Standard encoding when appropriate */ + charmap.platform_id = TT_PLATFORM_ADOBE; + clazz = NULL; + + switch ( type1->encoding_type ) + { + case T1_ENCODING_TYPE_STANDARD: + charmap.encoding = FT_ENCODING_ADOBE_STANDARD; + charmap.encoding_id = TT_ADOBE_ID_STANDARD; + clazz = cmap_classes->standard; + break; + + case T1_ENCODING_TYPE_EXPERT: + charmap.encoding = FT_ENCODING_ADOBE_EXPERT; + charmap.encoding_id = TT_ADOBE_ID_EXPERT; + clazz = cmap_classes->expert; + break; + + case T1_ENCODING_TYPE_ARRAY: + charmap.encoding = FT_ENCODING_ADOBE_CUSTOM; + charmap.encoding_id = TT_ADOBE_ID_CUSTOM; + clazz = cmap_classes->custom; + break; + + case T1_ENCODING_TYPE_ISOLATIN1: + charmap.encoding = FT_ENCODING_ADOBE_LATIN_1; + charmap.encoding_id = TT_ADOBE_ID_LATIN_1; + clazz = cmap_classes->unicode; + break; + + default: + ; + } + + if ( clazz ) + error = FT_CMap_New( clazz, NULL, &charmap, NULL ); + +#if 0 + /* Select default charmap */ + if (root->num_charmaps) + root->charmap = root->charmaps[0]; +#endif + } + } + + Exit: + return error; + } + + + /*************************************************************************/ + /* */ + /* */ + /* T1_Driver_Init */ + /* */ + /* */ + /* Initializes a given Type 1 driver object. */ + /* */ + /* */ + /* driver :: A handle to the target driver object. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + T1_Driver_Init( FT_Module driver ) + { + FT_UNUSED( driver ); + + return T1_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* */ + /* T1_Driver_Done */ + /* */ + /* */ + /* Finalizes a given Type 1 driver. */ + /* */ + /* */ + /* driver :: A handle to the target Type 1 driver. */ + /* */ + FT_LOCAL_DEF( void ) + T1_Driver_Done( FT_Module driver ) + { + FT_UNUSED( driver ); + } + + +/* END */ diff --git a/src/type1/t1objs.h b/src/type1/t1objs.h new file mode 100644 index 0000000..54ccbb9 --- /dev/null +++ b/src/type1/t1objs.h @@ -0,0 +1,160 @@ +/***************************************************************************/ +/* */ +/* t1objs.h */ +/* */ +/* Type 1 objects manager (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2006, 2011 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1OBJS_H__ +#define __T1OBJS_H__ + + +#include +#include FT_INTERNAL_OBJECTS_H +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_TYPE1_TYPES_H + + +FT_BEGIN_HEADER + + + /* The following structures must be defined by the hinter */ + typedef struct T1_Size_Hints_ T1_Size_Hints; + typedef struct T1_Glyph_Hints_ T1_Glyph_Hints; + + + /*************************************************************************/ + /* */ + /* */ + /* T1_Size */ + /* */ + /* */ + /* A handle to a Type 1 size object. */ + /* */ + typedef struct T1_SizeRec_* T1_Size; + + + /*************************************************************************/ + /* */ + /* */ + /* T1_GlyphSlot */ + /* */ + /* */ + /* A handle to a Type 1 glyph slot object. */ + /* */ + typedef struct T1_GlyphSlotRec_* T1_GlyphSlot; + + + /*************************************************************************/ + /* */ + /* */ + /* T1_CharMap */ + /* */ + /* */ + /* A handle to a Type 1 character mapping object. */ + /* */ + /* */ + /* The Type 1 format doesn't use a charmap but an encoding table. */ + /* The driver is responsible for making up charmap objects */ + /* corresponding to these tables. */ + /* */ + typedef struct T1_CharMapRec_* T1_CharMap; + + + /*************************************************************************/ + /* */ + /* HERE BEGINS THE TYPE1 SPECIFIC STUFF */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* */ + /* T1_SizeRec */ + /* */ + /* */ + /* Type 1 size record. */ + /* */ + typedef struct T1_SizeRec_ + { + FT_SizeRec root; + + } T1_SizeRec; + + + FT_LOCAL( void ) + T1_Size_Done( FT_Size size ); + + FT_LOCAL( FT_Error ) + T1_Size_Request( FT_Size size, + FT_Size_Request req ); + + FT_LOCAL( FT_Error ) + T1_Size_Init( FT_Size size ); + + + /*************************************************************************/ + /* */ + /* */ + /* T1_GlyphSlotRec */ + /* */ + /* */ + /* Type 1 glyph slot record. */ + /* */ + typedef struct T1_GlyphSlotRec_ + { + FT_GlyphSlotRec root; + + FT_Bool hint; + FT_Bool scaled; + + FT_Int max_points; + FT_Int max_contours; + + FT_Fixed x_scale; + FT_Fixed y_scale; + + } T1_GlyphSlotRec; + + + FT_LOCAL( FT_Error ) + T1_Face_Init( FT_Stream stream, + FT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + FT_LOCAL( void ) + T1_Face_Done( FT_Face face ); + + FT_LOCAL( FT_Error ) + T1_GlyphSlot_Init( FT_GlyphSlot slot ); + + FT_LOCAL( void ) + T1_GlyphSlot_Done( FT_GlyphSlot slot ); + + FT_LOCAL( FT_Error ) + T1_Driver_Init( FT_Module driver ); + + FT_LOCAL( void ) + T1_Driver_Done( FT_Module driver ); + + +FT_END_HEADER + +#endif /* __T1OBJS_H__ */ + + +/* END */ diff --git a/src/type1/t1parse.c b/src/type1/t1parse.c new file mode 100644 index 0000000..4955279 --- /dev/null +++ b/src/type1/t1parse.c @@ -0,0 +1,494 @@ +/***************************************************************************/ +/* */ +/* t1parse.c */ +/* */ +/* Type 1 parser (body). */ +/* */ +/* Copyright 1996-2005, 2008, 2009, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* The Type 1 parser is in charge of the following: */ + /* */ + /* - provide an implementation of a growing sequence of objects called */ + /* a `T1_Table' (used to build various tables needed by the loader). */ + /* */ + /* - opening .pfb and .pfa files to extract their top-level and private */ + /* dictionaries. */ + /* */ + /* - read numbers, arrays & strings from any dictionary. */ + /* */ + /* See `t1load.c' to see how data is loaded from the font file. */ + /* */ + /*************************************************************************/ + + +#include +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + +#include "t1parse.h" + +#include "t1errors.h" + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t1parse + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** INPUT STREAM PARSER *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* see Adobe Technical Note 5040.Download_Fonts.pdf */ + + static FT_Error + read_pfb_tag( FT_Stream stream, + FT_UShort *atag, + FT_ULong *asize ) + { + FT_Error error; + FT_UShort tag; + FT_ULong size; + + + *atag = 0; + *asize = 0; + + if ( !FT_READ_USHORT( tag ) ) + { + if ( tag == 0x8001U || tag == 0x8002U ) + { + if ( !FT_READ_ULONG_LE( size ) ) + *asize = size; + } + + *atag = tag; + } + + return error; + } + + + static FT_Error + check_type1_format( FT_Stream stream, + const char* header_string, + size_t header_length ) + { + FT_Error error; + FT_UShort tag; + FT_ULong dummy; + + + if ( FT_STREAM_SEEK( 0 ) ) + goto Exit; + + error = read_pfb_tag( stream, &tag, &dummy ); + if ( error ) + goto Exit; + + /* We assume that the first segment in a PFB is always encoded as */ + /* text. This might be wrong (and the specification doesn't insist */ + /* on that), but we have never seen a counterexample. */ + if ( tag != 0x8001U && FT_STREAM_SEEK( 0 ) ) + goto Exit; + + if ( !FT_FRAME_ENTER( header_length ) ) + { + error = T1_Err_Ok; + + if ( ft_memcmp( stream->cursor, header_string, header_length ) != 0 ) + error = T1_Err_Unknown_File_Format; + + FT_FRAME_EXIT(); + } + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T1_New_Parser( T1_Parser parser, + FT_Stream stream, + FT_Memory memory, + PSAux_Service psaux ) + { + FT_Error error; + FT_UShort tag; + FT_ULong size; + + + psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory ); + + parser->stream = stream; + parser->base_len = 0; + parser->base_dict = 0; + parser->private_len = 0; + parser->private_dict = 0; + parser->in_pfb = 0; + parser->in_memory = 0; + parser->single_block = 0; + + /* check the header format */ + error = check_type1_format( stream, "%!PS-AdobeFont", 14 ); + if ( error ) + { + if ( error != T1_Err_Unknown_File_Format ) + goto Exit; + + error = check_type1_format( stream, "%!FontType", 10 ); + if ( error ) + { + FT_TRACE2(( " not a Type 1 font\n" )); + goto Exit; + } + } + + /******************************************************************/ + /* */ + /* Here a short summary of what is going on: */ + /* */ + /* When creating a new Type 1 parser, we try to locate and load */ + /* the base dictionary if this is possible (i.e., for PFB */ + /* files). Otherwise, we load the whole font into memory. */ + /* */ + /* When `loading' the base dictionary, we only setup pointers */ + /* in the case of a memory-based stream. Otherwise, we */ + /* allocate and load the base dictionary in it. */ + /* */ + /* parser->in_pfb is set if we are in a binary (`.pfb') font. */ + /* parser->in_memory is set if we have a memory stream. */ + /* */ + + /* try to compute the size of the base dictionary; */ + /* look for a Postscript binary file tag, i.e., 0x8001 */ + if ( FT_STREAM_SEEK( 0L ) ) + goto Exit; + + error = read_pfb_tag( stream, &tag, &size ); + if ( error ) + goto Exit; + + if ( tag != 0x8001U ) + { + /* assume that this is a PFA file for now; an error will */ + /* be produced later when more things are checked */ + if ( FT_STREAM_SEEK( 0L ) ) + goto Exit; + size = stream->size; + } + else + parser->in_pfb = 1; + + /* now, try to load `size' bytes of the `base' dictionary we */ + /* found previously */ + + /* if it is a memory-based resource, set up pointers */ + if ( !stream->read ) + { + parser->base_dict = (FT_Byte*)stream->base + stream->pos; + parser->base_len = size; + parser->in_memory = 1; + + /* check that the `size' field is valid */ + if ( FT_STREAM_SKIP( size ) ) + goto Exit; + } + else + { + /* read segment in memory -- this is clumsy, but so does the format */ + if ( FT_ALLOC( parser->base_dict, size ) || + FT_STREAM_READ( parser->base_dict, size ) ) + goto Exit; + parser->base_len = size; + } + + parser->root.base = parser->base_dict; + parser->root.cursor = parser->base_dict; + parser->root.limit = parser->root.cursor + parser->base_len; + + Exit: + if ( error && !parser->in_memory ) + FT_FREE( parser->base_dict ); + + return error; + } + + + FT_LOCAL_DEF( void ) + T1_Finalize_Parser( T1_Parser parser ) + { + FT_Memory memory = parser->root.memory; + + + /* always free the private dictionary */ + FT_FREE( parser->private_dict ); + + /* free the base dictionary only when we have a disk stream */ + if ( !parser->in_memory ) + FT_FREE( parser->base_dict ); + + parser->root.funcs.done( &parser->root ); + } + + + FT_LOCAL_DEF( FT_Error ) + T1_Get_Private_Dict( T1_Parser parser, + PSAux_Service psaux ) + { + FT_Stream stream = parser->stream; + FT_Memory memory = parser->root.memory; + FT_Error error = T1_Err_Ok; + FT_ULong size; + + + if ( parser->in_pfb ) + { + /* in the case of the PFB format, the private dictionary can be */ + /* made of several segments. We thus first read the number of */ + /* segments to compute the total size of the private dictionary */ + /* then re-read them into memory. */ + FT_Long start_pos = FT_STREAM_POS(); + FT_UShort tag; + + + parser->private_len = 0; + for (;;) + { + error = read_pfb_tag( stream, &tag, &size ); + if ( error ) + goto Fail; + + if ( tag != 0x8002U ) + break; + + parser->private_len += size; + + if ( FT_STREAM_SKIP( size ) ) + goto Fail; + } + + /* Check that we have a private dictionary there */ + /* and allocate private dictionary buffer */ + if ( parser->private_len == 0 ) + { + FT_ERROR(( "T1_Get_Private_Dict:" + " invalid private dictionary section\n" )); + error = T1_Err_Invalid_File_Format; + goto Fail; + } + + if ( FT_STREAM_SEEK( start_pos ) || + FT_ALLOC( parser->private_dict, parser->private_len ) ) + goto Fail; + + parser->private_len = 0; + for (;;) + { + error = read_pfb_tag( stream, &tag, &size ); + if ( error || tag != 0x8002U ) + { + error = T1_Err_Ok; + break; + } + + if ( FT_STREAM_READ( parser->private_dict + parser->private_len, + size ) ) + goto Fail; + + parser->private_len += size; + } + } + else + { + /* We have already `loaded' the whole PFA font file into memory; */ + /* if this is a memory resource, allocate a new block to hold */ + /* the private dict. Otherwise, simply overwrite into the base */ + /* dictionary block in the heap. */ + + /* first of all, look at the `eexec' keyword */ + FT_Byte* cur = parser->base_dict; + FT_Byte* limit = cur + parser->base_len; + FT_Byte c; + + + Again: + for (;;) + { + c = cur[0]; + if ( c == 'e' && cur + 9 < limit ) /* 9 = 5 letters for `eexec' + */ + /* newline + 4 chars */ + { + if ( cur[1] == 'e' && + cur[2] == 'x' && + cur[3] == 'e' && + cur[4] == 'c' ) + break; + } + cur++; + if ( cur >= limit ) + { + FT_ERROR(( "T1_Get_Private_Dict:" + " could not find `eexec' keyword\n" )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + } + + /* check whether `eexec' was real -- it could be in a comment */ + /* or string (as e.g. in u003043t.gsf from ghostscript) */ + + parser->root.cursor = parser->base_dict; + parser->root.limit = cur + 9; + + cur = parser->root.cursor; + limit = parser->root.limit; + + while ( cur < limit ) + { + if ( *cur == 'e' && ft_strncmp( (char*)cur, "eexec", 5 ) == 0 ) + goto Found; + + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + break; + T1_Skip_Spaces ( parser ); + cur = parser->root.cursor; + } + + /* we haven't found the correct `eexec'; go back and continue */ + /* searching */ + + cur = limit; + limit = parser->base_dict + parser->base_len; + goto Again; + + /* now determine where to write the _encrypted_ binary private */ + /* dictionary. We overwrite the base dictionary for disk-based */ + /* resources and allocate a new block otherwise */ + + Found: + parser->root.limit = parser->base_dict + parser->base_len; + + T1_Skip_PS_Token( parser ); + cur = parser->root.cursor; + + /* according to the Type1 spec, the first cipher byte must not be */ + /* an ASCII whitespace character code (blank, tab, carriage return */ + /* or line feed). We have seen Type 1 fonts with two line feed */ + /* characters... So skip now all whitespace character codes. */ + while ( cur < limit && + ( *cur == ' ' || + *cur == '\t' || + *cur == '\r' || + *cur == '\n' ) ) + ++cur; + if ( cur >= limit ) + { + FT_ERROR(( "T1_Get_Private_Dict:" + " `eexec' not properly terminated\n" )); + error = T1_Err_Invalid_File_Format; + goto Exit; + } + + size = parser->base_len - ( cur - parser->base_dict ); + + if ( parser->in_memory ) + { + /* note that we allocate one more byte to put a terminating `0' */ + if ( FT_ALLOC( parser->private_dict, size + 1 ) ) + goto Fail; + parser->private_len = size; + } + else + { + parser->single_block = 1; + parser->private_dict = parser->base_dict; + parser->private_len = size; + parser->base_dict = 0; + parser->base_len = 0; + } + + /* now determine whether the private dictionary is encoded in binary */ + /* or hexadecimal ASCII format -- decode it accordingly */ + + /* we need to access the next 4 bytes (after the final \r following */ + /* the `eexec' keyword); if they all are hexadecimal digits, then */ + /* we have a case of ASCII storage */ + + if ( ft_isxdigit( cur[0] ) && ft_isxdigit( cur[1] ) && + ft_isxdigit( cur[2] ) && ft_isxdigit( cur[3] ) ) + { + /* ASCII hexadecimal encoding */ + FT_Long len; + + + parser->root.cursor = cur; + (void)psaux->ps_parser_funcs->to_bytes( &parser->root, + parser->private_dict, + parser->private_len, + &len, + 0 ); + parser->private_len = len; + + /* put a safeguard */ + parser->private_dict[len] = '\0'; + } + else + /* binary encoding -- copy the private dict */ + FT_MEM_MOVE( parser->private_dict, cur, size ); + } + + /* we now decrypt the encoded binary private dictionary */ + psaux->t1_decrypt( parser->private_dict, parser->private_len, 55665U ); + + if ( parser->private_len < 4 ) + { + FT_ERROR(( "T1_Get_Private_Dict:" + " invalid private dictionary section\n" )); + error = T1_Err_Invalid_File_Format; + goto Fail; + } + + /* replace the four random bytes at the beginning with whitespace */ + parser->private_dict[0] = ' '; + parser->private_dict[1] = ' '; + parser->private_dict[2] = ' '; + parser->private_dict[3] = ' '; + + parser->root.base = parser->private_dict; + parser->root.cursor = parser->private_dict; + parser->root.limit = parser->root.cursor + parser->private_len; + + Fail: + Exit: + return error; + } + + +/* END */ diff --git a/src/type1/t1parse.h b/src/type1/t1parse.h new file mode 100644 index 0000000..fb1c8a8 --- /dev/null +++ b/src/type1/t1parse.h @@ -0,0 +1,135 @@ +/***************************************************************************/ +/* */ +/* t1parse.h */ +/* */ +/* Type 1 parser (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2008 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T1PARSE_H__ +#define __T1PARSE_H__ + + +#include +#include FT_INTERNAL_TYPE1_TYPES_H +#include FT_INTERNAL_STREAM_H + + +FT_BEGIN_HEADER + + + /*************************************************************************/ + /* */ + /* */ + /* T1_ParserRec */ + /* */ + /* */ + /* A PS_ParserRec is an object used to parse a Type 1 fonts very */ + /* quickly. */ + /* */ + /* */ + /* root :: The root parser. */ + /* */ + /* stream :: The current input stream. */ + /* */ + /* base_dict :: A pointer to the top-level dictionary. */ + /* */ + /* base_len :: The length in bytes of the top dictionary. */ + /* */ + /* private_dict :: A pointer to the private dictionary. */ + /* */ + /* private_len :: The length in bytes of the private dictionary. */ + /* */ + /* in_pfb :: A boolean. Indicates that we are handling a PFB */ + /* file. */ + /* */ + /* in_memory :: A boolean. Indicates a memory-based stream. */ + /* */ + /* single_block :: A boolean. Indicates that the private dictionary */ + /* is stored in lieu of the base dictionary. */ + /* */ + typedef struct T1_ParserRec_ + { + PS_ParserRec root; + FT_Stream stream; + + FT_Byte* base_dict; + FT_ULong base_len; + + FT_Byte* private_dict; + FT_ULong private_len; + + FT_Bool in_pfb; + FT_Bool in_memory; + FT_Bool single_block; + + } T1_ParserRec, *T1_Parser; + + +#define T1_Add_Table( p, i, o, l ) (p)->funcs.add( (p), i, o, l ) +#define T1_Done_Table( p ) \ + do \ + { \ + if ( (p)->funcs.done ) \ + (p)->funcs.done( p ); \ + } while ( 0 ) +#define T1_Release_Table( p ) \ + do \ + { \ + if ( (p)->funcs.release ) \ + (p)->funcs.release( p ); \ + } while ( 0 ) + + +#define T1_Skip_Spaces( p ) (p)->root.funcs.skip_spaces( &(p)->root ) +#define T1_Skip_PS_Token( p ) (p)->root.funcs.skip_PS_token( &(p)->root ) + +#define T1_ToInt( p ) (p)->root.funcs.to_int( &(p)->root ) +#define T1_ToFixed( p, t ) (p)->root.funcs.to_fixed( &(p)->root, t ) + +#define T1_ToCoordArray( p, m, c ) \ + (p)->root.funcs.to_coord_array( &(p)->root, m, c ) +#define T1_ToFixedArray( p, m, f, t ) \ + (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t ) +#define T1_ToToken( p, t ) \ + (p)->root.funcs.to_token( &(p)->root, t ) +#define T1_ToTokenArray( p, t, m, c ) \ + (p)->root.funcs.to_token_array( &(p)->root, t, m, c ) + +#define T1_Load_Field( p, f, o, m, pf ) \ + (p)->root.funcs.load_field( &(p)->root, f, o, m, pf ) + +#define T1_Load_Field_Table( p, f, o, m, pf ) \ + (p)->root.funcs.load_field_table( &(p)->root, f, o, m, pf ) + + + FT_LOCAL( FT_Error ) + T1_New_Parser( T1_Parser parser, + FT_Stream stream, + FT_Memory memory, + PSAux_Service psaux ); + + FT_LOCAL( FT_Error ) + T1_Get_Private_Dict( T1_Parser parser, + PSAux_Service psaux ); + + FT_LOCAL( void ) + T1_Finalize_Parser( T1_Parser parser ); + + +FT_END_HEADER + +#endif /* __T1PARSE_H__ */ + + +/* END */ diff --git a/src/type1/t1tokens.h b/src/type1/t1tokens.h new file mode 100644 index 0000000..e37276b --- /dev/null +++ b/src/type1/t1tokens.h @@ -0,0 +1,143 @@ +/***************************************************************************/ +/* */ +/* t1tokens.h */ +/* */ +/* Type 1 tokenizer (specification). */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008, 2009 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_FontInfoRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_INFO + + T1_FIELD_STRING( "version", version, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_STRING( "Notice", notice, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_STRING( "FullName", full_name, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_STRING( "FamilyName", family_name, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_STRING( "Weight", weight, + T1_FIELD_DICT_FONTDICT ) + + /* we use pointers to detect modifications made by synthetic fonts */ + T1_FIELD_NUM ( "ItalicAngle", italic_angle, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_BOOL ( "isFixedPitch", is_fixed_pitch, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_NUM ( "UnderlinePosition", underline_position, + T1_FIELD_DICT_FONTDICT ) + T1_FIELD_NUM ( "UnderlineThickness", underline_thickness, + T1_FIELD_DICT_FONTDICT ) + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_FontExtraRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_EXTRA + + T1_FIELD_NUM ( "FSType", fs_type, + T1_FIELD_DICT_FONTDICT ) + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_PrivateRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_PRIVATE + + T1_FIELD_NUM ( "UniqueID", unique_id, + T1_FIELD_DICT_FONTDICT | T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM ( "lenIV", lenIV, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM ( "LanguageGroup", language_group, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM ( "password", password, + T1_FIELD_DICT_PRIVATE ) + + T1_FIELD_FIXED_1000( "BlueScale", blue_scale, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM ( "BlueShift", blue_shift, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM ( "BlueFuzz", blue_fuzz, + T1_FIELD_DICT_PRIVATE ) + + T1_FIELD_NUM_TABLE ( "BlueValues", blue_values, 14, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM_TABLE ( "OtherBlues", other_blues, 10, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM_TABLE ( "FamilyBlues", family_blues, 14, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM_TABLE ( "FamilyOtherBlues", family_other_blues, 10, + T1_FIELD_DICT_PRIVATE ) + + T1_FIELD_NUM_TABLE2( "StdHW", standard_width, 1, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM_TABLE2( "StdVW", standard_height, 1, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM_TABLE2( "MinFeature", min_feature, 2, + T1_FIELD_DICT_PRIVATE ) + + T1_FIELD_NUM_TABLE ( "StemSnapH", snap_widths, 12, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM_TABLE ( "StemSnapV", snap_heights, 12, + T1_FIELD_DICT_PRIVATE ) + + T1_FIELD_FIXED ( "ExpansionFactor", expansion_factor, + T1_FIELD_DICT_PRIVATE ) + T1_FIELD_BOOL ( "ForceBold", force_bold, + T1_FIELD_DICT_PRIVATE ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE T1_FontRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_DICT + + T1_FIELD_KEY ( "FontName", font_name, T1_FIELD_DICT_FONTDICT ) + T1_FIELD_NUM ( "PaintType", paint_type, T1_FIELD_DICT_FONTDICT ) + T1_FIELD_NUM ( "FontType", font_type, T1_FIELD_DICT_FONTDICT ) + T1_FIELD_FIXED( "StrokeWidth", stroke_width, T1_FIELD_DICT_FONTDICT ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE FT_BBox +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_BBOX + + T1_FIELD_BBOX( "FontBBox", xMin, T1_FIELD_DICT_FONTDICT ) + + +#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT + +#undef FT_STRUCTURE +#define FT_STRUCTURE T1_FaceRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FACE + + T1_FIELD_NUM( "NDV", ndv_idx, T1_FIELD_DICT_PRIVATE ) + T1_FIELD_NUM( "CDV", cdv_idx, T1_FIELD_DICT_PRIVATE ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_BlendRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_BLEND + + T1_FIELD_NUM_TABLE( "DesignVector", default_design_vector, + T1_MAX_MM_DESIGNS, T1_FIELD_DICT_FONTDICT ) + + +#endif /* T1_CONFIG_OPTION_NO_MM_SUPPORT */ + + +/* END */ diff --git a/src/type1/type1.c b/src/type1/type1.c new file mode 100644 index 0000000..ccc12be --- /dev/null +++ b/src/type1/type1.c @@ -0,0 +1,33 @@ +/***************************************************************************/ +/* */ +/* type1.c */ +/* */ +/* FreeType Type 1 driver component (body only). */ +/* */ +/* Copyright 1996-2001 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include +#include "t1parse.c" +#include "t1load.c" +#include "t1objs.c" +#include "t1driver.c" +#include "t1gload.c" + +#ifndef T1_CONFIG_OPTION_NO_AFM +#include "t1afm.c" +#endif + + +/* END */ diff --git a/src/type42/Jamfile b/src/type42/Jamfile new file mode 100644 index 0000000..00371d5 --- /dev/null +++ b/src/type42/Jamfile @@ -0,0 +1,29 @@ +# FreeType 2 src/type42 Jamfile +# +# Copyright 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) type42 ; + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = t42objs t42parse t42drivr ; + } + else + { + _sources = type42 ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# end of src/type42 Jamfile diff --git a/src/type42/module.mk b/src/type42/module.mk new file mode 100644 index 0000000..b3f10a8 --- /dev/null +++ b/src/type42/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 Type42 module definition +# + + +# Copyright 2002, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += TYPE42_DRIVER + +define TYPE42_DRIVER +$(OPEN_DRIVER) FT_Driver_ClassRec, t42_driver_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)type42 $(ECHO_DRIVER_DESC)Type 42 font files with no known extension$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/type42/rules.mk b/src/type42/rules.mk new file mode 100644 index 0000000..eac1081 --- /dev/null +++ b/src/type42/rules.mk @@ -0,0 +1,70 @@ +# +# FreeType 2 Type42 driver configuration rules +# + + +# Copyright 2002, 2003, 2008 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Type42 driver directory +# +T42_DIR := $(SRC_DIR)/type42 + + +# compilation flags for the driver +# +T42_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(T42_DIR)) + + +# Type42 driver source +# +T42_DRV_SRC := $(T42_DIR)/t42objs.c \ + $(T42_DIR)/t42parse.c \ + $(T42_DIR)/t42drivr.c + +# Type42 driver headers +# +T42_DRV_H := $(T42_DRV_SRC:%.c=%.h) \ + $(T42_DIR)/t42error.h \ + $(T42_DIR)/t42types.h + + +# Type42 driver object(s) +# +# T42_DRV_OBJ_M is used during `multi' builds +# T42_DRV_OBJ_S is used during `single' builds +# +T42_DRV_OBJ_M := $(T42_DRV_SRC:$(T42_DIR)/%.c=$(OBJ_DIR)/%.$O) +T42_DRV_OBJ_S := $(OBJ_DIR)/type42.$O + +# Type42 driver source file for single build +# +T42_DRV_SRC_S := $(T42_DIR)/type42.c + + +# Type42 driver - single object +# +$(T42_DRV_OBJ_S): $(T42_DRV_SRC_S) $(T42_DRV_SRC) $(FREETYPE_H) $(T42_DRV_H) + $(T42_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(T42_DRV_SRC_S)) + + +# Type42 driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(T42_DIR)/%.c $(FREETYPE_H) $(T42_DRV_H) + $(T42_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(T42_DRV_OBJ_S) +DRV_OBJS_M += $(T42_DRV_OBJ_M) + + +# EOF diff --git a/src/type42/t42drivr.c b/src/type42/t42drivr.c new file mode 100644 index 0000000..9b93209 --- /dev/null +++ b/src/type42/t42drivr.c @@ -0,0 +1,247 @@ +/***************************************************************************/ +/* */ +/* t42drivr.c */ +/* */ +/* High-level Type 42 driver interface (body). */ +/* */ +/* Copyright 2002-2004, 2006, 2007, 2009, 2011 by Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This driver implements Type42 fonts as described in the */ + /* Technical Note #5012 from Adobe, with these limitations: */ + /* */ + /* 1) CID Fonts are not currently supported. */ + /* 2) Incremental fonts making use of the GlyphDirectory keyword */ + /* will be loaded, but the rendering will be using the TrueType */ + /* tables. */ + /* 3) As for Type1 fonts, CDevProc is not supported. */ + /* 4) The Metrics dictionary is not supported. */ + /* 5) AFM metrics are not supported. */ + /* */ + /* In other words, this driver supports Type42 fonts derived from */ + /* TrueType fonts in a non-CID manner, as done by usual conversion */ + /* programs. */ + /* */ + /*************************************************************************/ + + +#include "t42drivr.h" +#include "t42objs.h" +#include "t42error.h" +#include FT_INTERNAL_DEBUG_H + +#include FT_SERVICE_XFREE86_NAME_H +#include FT_SERVICE_GLYPH_DICT_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_POSTSCRIPT_INFO_H + +#undef FT_COMPONENT +#define FT_COMPONENT trace_t42 + + + /* + * + * GLYPH DICT SERVICE + * + */ + + static FT_Error + t42_get_glyph_name( T42_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ) + { + FT_STRCPYN( buffer, face->type1.glyph_names[glyph_index], buffer_max ); + + return T42_Err_Ok; + } + + + static FT_UInt + t42_get_name_index( T42_Face face, + FT_String* glyph_name ) + { + FT_Int i; + FT_String* gname; + + + for ( i = 0; i < face->type1.num_glyphs; i++ ) + { + gname = face->type1.glyph_names[i]; + + if ( glyph_name[0] == gname[0] && !ft_strcmp( glyph_name, gname ) ) + return (FT_UInt)ft_atol( (const char *)face->type1.charstrings[i] ); + } + + return 0; + } + + + static const FT_Service_GlyphDictRec t42_service_glyph_dict = + { + (FT_GlyphDict_GetNameFunc) t42_get_glyph_name, + (FT_GlyphDict_NameIndexFunc)t42_get_name_index + }; + + + /* + * + * POSTSCRIPT NAME SERVICE + * + */ + + static const char* + t42_get_ps_font_name( T42_Face face ) + { + return (const char*)face->type1.font_name; + } + + + static const FT_Service_PsFontNameRec t42_service_ps_font_name = + { + (FT_PsName_GetFunc)t42_get_ps_font_name + }; + + + /* + * + * POSTSCRIPT INFO SERVICE + * + */ + + static FT_Error + t42_ps_get_font_info( FT_Face face, + PS_FontInfoRec* afont_info ) + { + *afont_info = ((T42_Face)face)->type1.font_info; + + return T42_Err_Ok; + } + + + static FT_Error + t42_ps_get_font_extra( FT_Face face, + PS_FontExtraRec* afont_extra ) + { + *afont_extra = ((T42_Face)face)->type1.font_extra; + + return T42_Err_Ok; + } + + + static FT_Int + t42_ps_has_glyph_names( FT_Face face ) + { + FT_UNUSED( face ); + + return 1; + } + + + static FT_Error + t42_ps_get_font_private( FT_Face face, + PS_PrivateRec* afont_private ) + { + *afont_private = ((T42_Face)face)->type1.private_dict; + + return T42_Err_Ok; + } + + + static const FT_Service_PsInfoRec t42_service_ps_info = + { + (PS_GetFontInfoFunc) t42_ps_get_font_info, + (PS_GetFontExtraFunc) t42_ps_get_font_extra, + (PS_HasGlyphNamesFunc) t42_ps_has_glyph_names, + (PS_GetFontPrivateFunc)t42_ps_get_font_private, + (PS_GetFontValueFunc) NULL /* not implemented */ + }; + + + /* + * + * SERVICE LIST + * + */ + + static const FT_ServiceDescRec t42_services[] = + { + { FT_SERVICE_ID_GLYPH_DICT, &t42_service_glyph_dict }, + { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t42_service_ps_font_name }, + { FT_SERVICE_ID_POSTSCRIPT_INFO, &t42_service_ps_info }, + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_TYPE_42 }, + { NULL, NULL } + }; + + + FT_CALLBACK_DEF( FT_Module_Interface ) + T42_Get_Interface( FT_Module module, + const FT_String* t42_interface ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( t42_services, t42_interface ); + } + + + const FT_Driver_ClassRec t42_driver_class = + { + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_SCALABLE | +#ifdef TT_USE_BYTECODE_INTERPRETER + FT_MODULE_DRIVER_HAS_HINTER, +#else + 0, +#endif + + sizeof ( T42_DriverRec ), + + "type42", + 0x10000L, + 0x20000L, + + 0, /* format interface */ + + T42_Driver_Init, + T42_Driver_Done, + T42_Get_Interface, + }, + + sizeof ( T42_FaceRec ), + sizeof ( T42_SizeRec ), + sizeof ( T42_GlyphSlotRec ), + + T42_Face_Init, + T42_Face_Done, + T42_Size_Init, + T42_Size_Done, + T42_GlyphSlot_Init, + T42_GlyphSlot_Done, + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + T42_GlyphSlot_Load, + + 0, /* FT_Face_GetKerningFunc */ + 0, /* FT_Face_AttachFunc */ + + 0, /* FT_Face_GetAdvancesFunc */ + T42_Size_Request, + T42_Size_Select + }; + + +/* END */ diff --git a/src/type42/t42drivr.h b/src/type42/t42drivr.h new file mode 100644 index 0000000..9a1e97e --- /dev/null +++ b/src/type42/t42drivr.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* t42drivr.h */ +/* */ +/* High-level Type 42 driver interface (specification). */ +/* */ +/* Copyright 2002 by Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T42DRIVR_H__ +#define __T42DRIVR_H__ + + +#include +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + + FT_EXPORT_VAR( const FT_Driver_ClassRec ) t42_driver_class; + + +FT_END_HEADER + + +#endif /* __T42DRIVR_H__ */ + + +/* END */ diff --git a/src/type42/t42error.h b/src/type42/t42error.h new file mode 100644 index 0000000..217ae8b --- /dev/null +++ b/src/type42/t42error.h @@ -0,0 +1,41 @@ +/***************************************************************************/ +/* */ +/* t42error.h */ +/* */ +/* Type 42 error codes (specification only). */ +/* */ +/* Copyright 2002, 2003, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the Type 42 error enumeration constants. */ + /* */ + /*************************************************************************/ + +#ifndef __T42ERROR_H__ +#define __T42ERROR_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX T42_Err_ +#define FT_ERR_BASE FT_Mod_Err_Type42 + +#include FT_ERRORS_H + +#endif /* __T42ERROR_H__ */ + + +/* END */ diff --git a/src/type42/t42objs.c b/src/type42/t42objs.c new file mode 100644 index 0000000..c6053af --- /dev/null +++ b/src/type42/t42objs.c @@ -0,0 +1,679 @@ +/***************************************************************************/ +/* */ +/* t42objs.c */ +/* */ +/* Type 42 objects manager (body). */ +/* */ +/* Copyright 2002-2009, 2011 */ +/* by Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "t42objs.h" +#include "t42parse.h" +#include "t42error.h" +#include FT_INTERNAL_DEBUG_H +#include FT_LIST_H +#include FT_TRUETYPE_IDS_H + + +#undef FT_COMPONENT +#define FT_COMPONENT trace_t42 + + + static FT_Error + T42_Open_Face( T42_Face face ) + { + T42_LoaderRec loader; + T42_Parser parser; + T1_Font type1 = &face->type1; + FT_Memory memory = face->root.memory; + FT_Error error; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + t42_loader_init( &loader, face ); + + parser = &loader.parser; + + if ( FT_ALLOC( face->ttf_data, 12 ) ) + goto Exit; + + error = t42_parser_init( parser, + face->root.stream, + memory, + psaux); + if ( error ) + goto Exit; + + error = t42_parse_dict( face, &loader, + parser->base_dict, parser->base_len ); + if ( error ) + goto Exit; + + if ( type1->font_type != 42 ) + { + FT_ERROR(( "T42_Open_Face: cannot handle FontType %d\n", + type1->font_type )); + error = T42_Err_Unknown_File_Format; + goto Exit; + } + + /* now, propagate the charstrings and glyphnames tables */ + /* to the Type1 data */ + type1->num_glyphs = loader.num_glyphs; + + if ( !loader.charstrings.init ) + { + FT_ERROR(( "T42_Open_Face: no charstrings array in face\n" )); + error = T42_Err_Invalid_File_Format; + } + + loader.charstrings.init = 0; + type1->charstrings_block = loader.charstrings.block; + type1->charstrings = loader.charstrings.elements; + type1->charstrings_len = loader.charstrings.lengths; + + /* we copy the glyph names `block' and `elements' fields; */ + /* the `lengths' field must be released later */ + type1->glyph_names_block = loader.glyph_names.block; + type1->glyph_names = (FT_String**)loader.glyph_names.elements; + loader.glyph_names.block = 0; + loader.glyph_names.elements = 0; + + /* we must now build type1.encoding when we have a custom array */ + if ( type1->encoding_type == T1_ENCODING_TYPE_ARRAY ) + { + FT_Int charcode, idx, min_char, max_char; + FT_Byte* char_name; + FT_Byte* glyph_name; + + + /* OK, we do the following: for each element in the encoding */ + /* table, look up the index of the glyph having the same name */ + /* as defined in the CharStrings array. */ + /* The index is then stored in type1.encoding.char_index, and */ + /* the name in type1.encoding.char_name */ + + min_char = 0; + max_char = 0; + + charcode = 0; + for ( ; charcode < loader.encoding_table.max_elems; charcode++ ) + { + type1->encoding.char_index[charcode] = 0; + type1->encoding.char_name [charcode] = (char *)".notdef"; + + char_name = loader.encoding_table.elements[charcode]; + if ( char_name ) + for ( idx = 0; idx < type1->num_glyphs; idx++ ) + { + glyph_name = (FT_Byte*)type1->glyph_names[idx]; + if ( ft_strcmp( (const char*)char_name, + (const char*)glyph_name ) == 0 ) + { + type1->encoding.char_index[charcode] = (FT_UShort)idx; + type1->encoding.char_name [charcode] = (char*)glyph_name; + + /* Change min/max encoded char only if glyph name is */ + /* not /.notdef */ + if ( ft_strcmp( (const char*)".notdef", + (const char*)glyph_name ) != 0 ) + { + if ( charcode < min_char ) + min_char = charcode; + if ( charcode >= max_char ) + max_char = charcode + 1; + } + break; + } + } + } + + type1->encoding.code_first = min_char; + type1->encoding.code_last = max_char; + type1->encoding.num_chars = loader.num_chars; + } + + Exit: + t42_loader_done( &loader ); + return error; + } + + + /***************** Driver Functions *************/ + + + FT_LOCAL_DEF( FT_Error ) + T42_Face_Init( FT_Stream stream, + FT_Face t42face, /* T42_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + T42_Face face = (T42_Face)t42face; + FT_Error error; + FT_Service_PsCMaps psnames; + PSAux_Service psaux; + FT_Face root = (FT_Face)&face->root; + T1_Font type1 = &face->type1; + PS_FontInfo info = &type1->font_info; + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + FT_UNUSED( face_index ); + FT_UNUSED( stream ); + + + face->ttf_face = NULL; + face->root.num_faces = 1; + + FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); + face->psnames = psnames; + + face->psaux = FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), + "psaux" ); + psaux = (PSAux_Service)face->psaux; + if ( !psaux ) + { + FT_ERROR(( "T42_Face_Init: cannot access `psaux' module\n" )); + error = T42_Err_Missing_Module; + goto Exit; + } + + FT_TRACE2(( "Type 42 driver\n" )); + + /* open the tokenizer, this will also check the font format */ + error = T42_Open_Face( face ); + if ( error ) + goto Exit; + + /* if we just wanted to check the format, leave successfully now */ + if ( face_index < 0 ) + goto Exit; + + /* check the face index */ + if ( face_index > 0 ) + { + FT_ERROR(( "T42_Face_Init: invalid face index\n" )); + error = T42_Err_Invalid_Argument; + goto Exit; + } + + /* Now load the font program into the face object */ + + /* Init the face object fields */ + /* Now set up root face fields */ + + root->num_glyphs = type1->num_glyphs; + root->num_charmaps = 0; + root->face_index = 0; + + root->face_flags = FT_FACE_FLAG_SCALABLE | + FT_FACE_FLAG_HORIZONTAL | + FT_FACE_FLAG_GLYPH_NAMES; + + if ( info->is_fixed_pitch ) + root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + /* We only set this flag if we have the patented bytecode interpreter. */ + /* There are no known `tricky' Type42 fonts that could be loaded with */ + /* the unpatented interpreter. */ +#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER + root->face_flags |= FT_FACE_FLAG_HINTER; +#endif + + /* XXX: TODO -- add kerning with .afm support */ + + /* get style name -- be careful, some broken fonts only */ + /* have a `/FontName' dictionary entry! */ + root->family_name = info->family_name; + /* assume "Regular" style if we don't know better */ + root->style_name = (char *)"Regular"; + if ( root->family_name ) + { + char* full = info->full_name; + char* family = root->family_name; + + + if ( full ) + { + while ( *full ) + { + if ( *full == *family ) + { + family++; + full++; + } + else + { + if ( *full == ' ' || *full == '-' ) + full++; + else if ( *family == ' ' || *family == '-' ) + family++; + else + { + if ( !*family ) + root->style_name = full; + break; + } + } + } + } + } + else + { + /* do we have a `/FontName'? */ + if ( type1->font_name ) + root->family_name = type1->font_name; + } + + /* no embedded bitmap support */ + root->num_fixed_sizes = 0; + root->available_sizes = 0; + + /* Load the TTF font embedded in the T42 font */ + { + FT_Open_Args args; + + + args.flags = FT_OPEN_MEMORY; + args.memory_base = face->ttf_data; + args.memory_size = face->ttf_size; + + if ( num_params ) + { + args.flags |= FT_OPEN_PARAMS; + args.num_params = num_params; + args.params = params; + } + + error = FT_Open_Face( FT_FACE_LIBRARY( face ), + &args, 0, &face->ttf_face ); + } + + if ( error ) + goto Exit; + + FT_Done_Size( face->ttf_face->size ); + + /* Ignore info in FontInfo dictionary and use the info from the */ + /* loaded TTF font. The PostScript interpreter also ignores it. */ + root->bbox = face->ttf_face->bbox; + root->units_per_EM = face->ttf_face->units_per_EM; + + root->ascender = face->ttf_face->ascender; + root->descender = face->ttf_face->descender; + root->height = face->ttf_face->height; + + root->max_advance_width = face->ttf_face->max_advance_width; + root->max_advance_height = face->ttf_face->max_advance_height; + + root->underline_position = (FT_Short)info->underline_position; + root->underline_thickness = (FT_Short)info->underline_thickness; + + /* compute style flags */ + root->style_flags = 0; + if ( info->italic_angle ) + root->style_flags |= FT_STYLE_FLAG_ITALIC; + + if ( face->ttf_face->style_flags & FT_STYLE_FLAG_BOLD ) + root->style_flags |= FT_STYLE_FLAG_BOLD; + + if ( face->ttf_face->face_flags & FT_FACE_FLAG_VERTICAL ) + root->face_flags |= FT_FACE_FLAG_VERTICAL; + + { + if ( psnames ) + { + FT_CharMapRec charmap; + T1_CMap_Classes cmap_classes = psaux->t1_cmap_classes; + FT_CMap_Class clazz; + + + charmap.face = root; + + /* first of all, try to synthesize a Unicode charmap */ + charmap.platform_id = TT_PLATFORM_MICROSOFT; + charmap.encoding_id = TT_MS_ID_UNICODE_CS; + charmap.encoding = FT_ENCODING_UNICODE; + + error = FT_CMap_New( cmap_classes->unicode, NULL, &charmap, NULL ); + if ( error && FT_Err_No_Unicode_Glyph_Name != error ) + goto Exit; + error = FT_Err_Ok; + + /* now, generate an Adobe Standard encoding when appropriate */ + charmap.platform_id = TT_PLATFORM_ADOBE; + clazz = NULL; + + switch ( type1->encoding_type ) + { + case T1_ENCODING_TYPE_STANDARD: + charmap.encoding = FT_ENCODING_ADOBE_STANDARD; + charmap.encoding_id = TT_ADOBE_ID_STANDARD; + clazz = cmap_classes->standard; + break; + + case T1_ENCODING_TYPE_EXPERT: + charmap.encoding = FT_ENCODING_ADOBE_EXPERT; + charmap.encoding_id = TT_ADOBE_ID_EXPERT; + clazz = cmap_classes->expert; + break; + + case T1_ENCODING_TYPE_ARRAY: + charmap.encoding = FT_ENCODING_ADOBE_CUSTOM; + charmap.encoding_id = TT_ADOBE_ID_CUSTOM; + clazz = cmap_classes->custom; + break; + + case T1_ENCODING_TYPE_ISOLATIN1: + charmap.encoding = FT_ENCODING_ADOBE_LATIN_1; + charmap.encoding_id = TT_ADOBE_ID_LATIN_1; + clazz = cmap_classes->unicode; + break; + + default: + ; + } + + if ( clazz ) + error = FT_CMap_New( clazz, NULL, &charmap, NULL ); + +#if 0 + /* Select default charmap */ + if ( root->num_charmaps ) + root->charmap = root->charmaps[0]; +#endif + } + } + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + T42_Face_Done( FT_Face t42face ) + { + T42_Face face = (T42_Face)t42face; + T1_Font type1; + PS_FontInfo info; + FT_Memory memory; + + + if ( !face ) + return; + + type1 = &face->type1; + info = &type1->font_info; + memory = face->root.memory; + + /* delete internal ttf face prior to freeing face->ttf_data */ + if ( face->ttf_face ) + FT_Done_Face( face->ttf_face ); + + /* release font info strings */ + FT_FREE( info->version ); + FT_FREE( info->notice ); + FT_FREE( info->full_name ); + FT_FREE( info->family_name ); + FT_FREE( info->weight ); + + /* release top dictionary */ + FT_FREE( type1->charstrings_len ); + FT_FREE( type1->charstrings ); + FT_FREE( type1->glyph_names ); + + FT_FREE( type1->charstrings_block ); + FT_FREE( type1->glyph_names_block ); + + FT_FREE( type1->encoding.char_index ); + FT_FREE( type1->encoding.char_name ); + FT_FREE( type1->font_name ); + + FT_FREE( face->ttf_data ); + +#if 0 + /* release afm data if present */ + if ( face->afm_data ) + T1_Done_AFM( memory, (T1_AFM*)face->afm_data ); +#endif + + /* release unicode map, if any */ + FT_FREE( face->unicode_map.maps ); + face->unicode_map.num_maps = 0; + + face->root.family_name = 0; + face->root.style_name = 0; + } + + + /*************************************************************************/ + /* */ + /* */ + /* T42_Driver_Init */ + /* */ + /* */ + /* Initializes a given Type 42 driver object. */ + /* */ + /* */ + /* driver :: A handle to the target driver object. */ + /* */ + /* */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + T42_Driver_Init( FT_Module module ) /* T42_Driver */ + { + T42_Driver driver = (T42_Driver)module; + FT_Module ttmodule; + + + ttmodule = FT_Get_Module( module->library, "truetype" ); + if ( !ttmodule ) + { + FT_ERROR(( "T42_Driver_Init: cannot access `truetype' module\n" )); + return T42_Err_Missing_Module; + } + + driver->ttclazz = (FT_Driver_Class)ttmodule->clazz; + + return T42_Err_Ok; + } + + + FT_LOCAL_DEF( void ) + T42_Driver_Done( FT_Module module ) + { + FT_UNUSED( module ); + } + + + FT_LOCAL_DEF( FT_Error ) + T42_Size_Init( FT_Size size ) /* T42_Size */ + { + T42_Size t42size = (T42_Size)size; + FT_Face face = size->face; + T42_Face t42face = (T42_Face)face; + FT_Size ttsize; + FT_Error error = T42_Err_Ok; + + + error = FT_New_Size( t42face->ttf_face, &ttsize ); + t42size->ttsize = ttsize; + + FT_Activate_Size( ttsize ); + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T42_Size_Request( FT_Size t42size, /* T42_Size */ + FT_Size_Request req ) + { + T42_Size size = (T42_Size)t42size; + T42_Face face = (T42_Face)t42size->face; + FT_Error error; + + + FT_Activate_Size( size->ttsize ); + + error = FT_Request_Size( face->ttf_face, req ); + if ( !error ) + t42size->metrics = face->ttf_face->size->metrics; + + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + T42_Size_Select( FT_Size t42size, /* T42_Size */ + FT_ULong strike_index ) + { + T42_Size size = (T42_Size)t42size; + T42_Face face = (T42_Face)t42size->face; + FT_Error error; + + + FT_Activate_Size( size->ttsize ); + + error = FT_Select_Size( face->ttf_face, (FT_Int)strike_index ); + if ( !error ) + t42size->metrics = face->ttf_face->size->metrics; + + return error; + + } + + + FT_LOCAL_DEF( void ) + T42_Size_Done( FT_Size t42size ) /* T42_Size */ + { + T42_Size size = (T42_Size)t42size; + FT_Face face = t42size->face; + T42_Face t42face = (T42_Face)face; + FT_ListNode node; + + + node = FT_List_Find( &t42face->ttf_face->sizes_list, size->ttsize ); + if ( node ) + { + FT_Done_Size( size->ttsize ); + size->ttsize = NULL; + } + } + + + FT_LOCAL_DEF( FT_Error ) + T42_GlyphSlot_Init( FT_GlyphSlot t42slot ) /* T42_GlyphSlot */ + { + T42_GlyphSlot slot = (T42_GlyphSlot)t42slot; + FT_Face face = t42slot->face; + T42_Face t42face = (T42_Face)face; + FT_GlyphSlot ttslot; + FT_Error error = T42_Err_Ok; + + + if ( face->glyph == NULL ) + { + /* First glyph slot for this face */ + slot->ttslot = t42face->ttf_face->glyph; + } + else + { + error = FT_New_GlyphSlot( t42face->ttf_face, &ttslot ); + slot->ttslot = ttslot; + } + + return error; + } + + + FT_LOCAL_DEF( void ) + T42_GlyphSlot_Done( FT_GlyphSlot t42slot ) /* T42_GlyphSlot */ + { + T42_GlyphSlot slot = (T42_GlyphSlot)t42slot; + + + FT_Done_GlyphSlot( slot->ttslot ); + } + + + static void + t42_glyphslot_clear( FT_GlyphSlot slot ) + { + /* free bitmap if needed */ + ft_glyphslot_free_bitmap( slot ); + + /* clear all public fields in the glyph slot */ + FT_ZERO( &slot->metrics ); + FT_ZERO( &slot->outline ); + FT_ZERO( &slot->bitmap ); + + slot->bitmap_left = 0; + slot->bitmap_top = 0; + slot->num_subglyphs = 0; + slot->subglyphs = 0; + slot->control_data = 0; + slot->control_len = 0; + slot->other = 0; + slot->format = FT_GLYPH_FORMAT_NONE; + + slot->linearHoriAdvance = 0; + slot->linearVertAdvance = 0; + } + + + FT_LOCAL_DEF( FT_Error ) + T42_GlyphSlot_Load( FT_GlyphSlot glyph, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FT_Error error; + T42_GlyphSlot t42slot = (T42_GlyphSlot)glyph; + T42_Size t42size = (T42_Size)size; + FT_Driver_Class ttclazz = ((T42_Driver)glyph->face->driver)->ttclazz; + + + t42_glyphslot_clear( t42slot->ttslot ); + error = ttclazz->load_glyph( t42slot->ttslot, + t42size->ttsize, + glyph_index, + load_flags | FT_LOAD_NO_BITMAP ); + + if ( !error ) + { + glyph->metrics = t42slot->ttslot->metrics; + + glyph->linearHoriAdvance = t42slot->ttslot->linearHoriAdvance; + glyph->linearVertAdvance = t42slot->ttslot->linearVertAdvance; + + glyph->format = t42slot->ttslot->format; + glyph->outline = t42slot->ttslot->outline; + + glyph->bitmap = t42slot->ttslot->bitmap; + glyph->bitmap_left = t42slot->ttslot->bitmap_left; + glyph->bitmap_top = t42slot->ttslot->bitmap_top; + + glyph->num_subglyphs = t42slot->ttslot->num_subglyphs; + glyph->subglyphs = t42slot->ttslot->subglyphs; + + glyph->control_data = t42slot->ttslot->control_data; + glyph->control_len = t42slot->ttslot->control_len; + } + + return error; + } + + +/* END */ diff --git a/src/type42/t42objs.h b/src/type42/t42objs.h new file mode 100644 index 0000000..02d1325 --- /dev/null +++ b/src/type42/t42objs.h @@ -0,0 +1,124 @@ +/***************************************************************************/ +/* */ +/* t42objs.h */ +/* */ +/* Type 42 objects manager (specification). */ +/* */ +/* Copyright 2002, 2003, 2006, 2007, 2011 by Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T42OBJS_H__ +#define __T42OBJS_H__ + +#include +#include FT_FREETYPE_H +#include FT_TYPE1_TABLES_H +#include FT_INTERNAL_TYPE1_TYPES_H +#include "t42types.h" +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DRIVER_H +#include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + + +FT_BEGIN_HEADER + + + /* Type42 size */ + typedef struct T42_SizeRec_ + { + FT_SizeRec root; + FT_Size ttsize; + + } T42_SizeRec, *T42_Size; + + + /* Type42 slot */ + typedef struct T42_GlyphSlotRec_ + { + FT_GlyphSlotRec root; + FT_GlyphSlot ttslot; + + } T42_GlyphSlotRec, *T42_GlyphSlot; + + + /* Type 42 driver */ + typedef struct T42_DriverRec_ + { + FT_DriverRec root; + FT_Driver_Class ttclazz; + void* extension_component; + + } T42_DriverRec, *T42_Driver; + + + /* */ + + + FT_LOCAL( FT_Error ) + T42_Face_Init( FT_Stream stream, + FT_Face face, + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ); + + + FT_LOCAL( void ) + T42_Face_Done( FT_Face face ); + + + FT_LOCAL( FT_Error ) + T42_Size_Init( FT_Size size ); + + + FT_LOCAL( FT_Error ) + T42_Size_Request( FT_Size size, + FT_Size_Request req ); + + + FT_LOCAL( FT_Error ) + T42_Size_Select( FT_Size size, + FT_ULong strike_index ); + + + FT_LOCAL( void ) + T42_Size_Done( FT_Size size ); + + + FT_LOCAL( FT_Error ) + T42_GlyphSlot_Init( FT_GlyphSlot slot ); + + + FT_LOCAL( FT_Error ) + T42_GlyphSlot_Load( FT_GlyphSlot glyph, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ); + + FT_LOCAL( void ) + T42_GlyphSlot_Done( FT_GlyphSlot slot ); + + + FT_LOCAL( FT_Error ) + T42_Driver_Init( FT_Module module ); + + FT_LOCAL( void ) + T42_Driver_Done( FT_Module module ); + + /* */ + +FT_END_HEADER + + +#endif /* __T42OBJS_H__ */ + + +/* END */ diff --git a/src/type42/t42parse.c b/src/type42/t42parse.c new file mode 100644 index 0000000..468b463 --- /dev/null +++ b/src/type42/t42parse.c @@ -0,0 +1,1188 @@ +/***************************************************************************/ +/* */ +/* t42parse.c */ +/* */ +/* Type 42 font parser (body). */ +/* */ +/* Copyright 2002-2012 by */ +/* Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include "t42parse.h" +#include "t42error.h" +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_t42 + + + static void + t42_parse_font_matrix( T42_Face face, + T42_Loader loader ); + static void + t42_parse_encoding( T42_Face face, + T42_Loader loader ); + + static void + t42_parse_charstrings( T42_Face face, + T42_Loader loader ); + + static void + t42_parse_sfnts( T42_Face face, + T42_Loader loader ); + + + /* as Type42 fonts have no Private dict, */ + /* we set the last argument of T1_FIELD_XXX to 0 */ + static const + T1_FieldRec t42_keywords[] = + { + +#undef FT_STRUCTURE +#define FT_STRUCTURE T1_FontInfo +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_INFO + + T1_FIELD_STRING( "version", version, 0 ) + T1_FIELD_STRING( "Notice", notice, 0 ) + T1_FIELD_STRING( "FullName", full_name, 0 ) + T1_FIELD_STRING( "FamilyName", family_name, 0 ) + T1_FIELD_STRING( "Weight", weight, 0 ) + T1_FIELD_NUM ( "ItalicAngle", italic_angle, 0 ) + T1_FIELD_BOOL ( "isFixedPitch", is_fixed_pitch, 0 ) + T1_FIELD_NUM ( "UnderlinePosition", underline_position, 0 ) + T1_FIELD_NUM ( "UnderlineThickness", underline_thickness, 0 ) + +#undef FT_STRUCTURE +#define FT_STRUCTURE PS_FontExtraRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_EXTRA + + T1_FIELD_NUM ( "FSType", fs_type, 0 ) + +#undef FT_STRUCTURE +#define FT_STRUCTURE T1_FontRec +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_FONT_DICT + + T1_FIELD_KEY ( "FontName", font_name, 0 ) + T1_FIELD_NUM ( "PaintType", paint_type, 0 ) + T1_FIELD_NUM ( "FontType", font_type, 0 ) + T1_FIELD_FIXED( "StrokeWidth", stroke_width, 0 ) + +#undef FT_STRUCTURE +#define FT_STRUCTURE FT_BBox +#undef T1CODE +#define T1CODE T1_FIELD_LOCATION_BBOX + + T1_FIELD_BBOX("FontBBox", xMin, 0 ) + + T1_FIELD_CALLBACK( "FontMatrix", t42_parse_font_matrix, 0 ) + T1_FIELD_CALLBACK( "Encoding", t42_parse_encoding, 0 ) + T1_FIELD_CALLBACK( "CharStrings", t42_parse_charstrings, 0 ) + T1_FIELD_CALLBACK( "sfnts", t42_parse_sfnts, 0 ) + + { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 } + }; + + +#define T1_Add_Table( p, i, o, l ) (p)->funcs.add( (p), i, o, l ) +#define T1_Done_Table( p ) \ + do \ + { \ + if ( (p)->funcs.done ) \ + (p)->funcs.done( p ); \ + } while ( 0 ) +#define T1_Release_Table( p ) \ + do \ + { \ + if ( (p)->funcs.release ) \ + (p)->funcs.release( p ); \ + } while ( 0 ) + +#define T1_Skip_Spaces( p ) (p)->root.funcs.skip_spaces( &(p)->root ) +#define T1_Skip_PS_Token( p ) (p)->root.funcs.skip_PS_token( &(p)->root ) + +#define T1_ToInt( p ) \ + (p)->root.funcs.to_int( &(p)->root ) +#define T1_ToBytes( p, b, m, n, d ) \ + (p)->root.funcs.to_bytes( &(p)->root, b, m, n, d ) + +#define T1_ToFixedArray( p, m, f, t ) \ + (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t ) +#define T1_ToToken( p, t ) \ + (p)->root.funcs.to_token( &(p)->root, t ) + +#define T1_Load_Field( p, f, o, m, pf ) \ + (p)->root.funcs.load_field( &(p)->root, f, o, m, pf ) +#define T1_Load_Field_Table( p, f, o, m, pf ) \ + (p)->root.funcs.load_field_table( &(p)->root, f, o, m, pf ) + + + /********************* Parsing Functions ******************/ + + FT_LOCAL_DEF( FT_Error ) + t42_parser_init( T42_Parser parser, + FT_Stream stream, + FT_Memory memory, + PSAux_Service psaux ) + { + FT_Error error = T42_Err_Ok; + FT_Long size; + + + psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory ); + + parser->stream = stream; + parser->base_len = 0; + parser->base_dict = 0; + parser->in_memory = 0; + + /*******************************************************************/ + /* */ + /* Here a short summary of what is going on: */ + /* */ + /* When creating a new Type 42 parser, we try to locate and load */ + /* the base dictionary, loading the whole font into memory. */ + /* */ + /* When `loading' the base dictionary, we only set up pointers */ + /* in the case of a memory-based stream. Otherwise, we allocate */ + /* and load the base dictionary in it. */ + /* */ + /* parser->in_memory is set if we have a memory stream. */ + /* */ + + if ( FT_STREAM_SEEK( 0L ) || + FT_FRAME_ENTER( 17 ) ) + goto Exit; + + if ( ft_memcmp( stream->cursor, "%!PS-TrueTypeFont", 17 ) != 0 ) + { + FT_TRACE2(( " not a Type42 font\n" )); + error = T42_Err_Unknown_File_Format; + } + + FT_FRAME_EXIT(); + + if ( error || FT_STREAM_SEEK( 0 ) ) + goto Exit; + + size = stream->size; + + /* now, try to load `size' bytes of the `base' dictionary we */ + /* found previously */ + + /* if it is a memory-based resource, set up pointers */ + if ( !stream->read ) + { + parser->base_dict = (FT_Byte*)stream->base + stream->pos; + parser->base_len = size; + parser->in_memory = 1; + + /* check that the `size' field is valid */ + if ( FT_STREAM_SKIP( size ) ) + goto Exit; + } + else + { + /* read segment in memory */ + if ( FT_ALLOC( parser->base_dict, size ) || + FT_STREAM_READ( parser->base_dict, size ) ) + goto Exit; + + parser->base_len = size; + } + + parser->root.base = parser->base_dict; + parser->root.cursor = parser->base_dict; + parser->root.limit = parser->root.cursor + parser->base_len; + + Exit: + if ( error && !parser->in_memory ) + FT_FREE( parser->base_dict ); + + return error; + } + + + FT_LOCAL_DEF( void ) + t42_parser_done( T42_Parser parser ) + { + FT_Memory memory = parser->root.memory; + + + /* free the base dictionary only when we have a disk stream */ + if ( !parser->in_memory ) + FT_FREE( parser->base_dict ); + + parser->root.funcs.done( &parser->root ); + } + + + static int + t42_is_space( FT_Byte c ) + { + return ( c == ' ' || c == '\t' || + c == '\r' || c == '\n' || c == '\f' || + c == '\0' ); + } + + + static void + t42_parse_font_matrix( T42_Face face, + T42_Loader loader ) + { + T42_Parser parser = &loader->parser; + FT_Matrix* matrix = &face->type1.font_matrix; + FT_Vector* offset = &face->type1.font_offset; + FT_Face root = (FT_Face)&face->root; + FT_Fixed temp[6]; + FT_Fixed temp_scale; + + + (void)T1_ToFixedArray( parser, 6, temp, 3 ); + + temp_scale = FT_ABS( temp[3] ); + + /* Set Units per EM based on FontMatrix values. We set the value to */ + /* 1000 / temp_scale, because temp_scale was already multiplied by */ + /* 1000 (in t1_tofixed, from psobjs.c). */ + + root->units_per_EM = (FT_UShort)( FT_DivFix( 1000 * 0x10000L, + temp_scale ) >> 16 ); + + /* we need to scale the values by 1.0/temp_scale */ + if ( temp_scale != 0x10000L ) + { + temp[0] = FT_DivFix( temp[0], temp_scale ); + temp[1] = FT_DivFix( temp[1], temp_scale ); + temp[2] = FT_DivFix( temp[2], temp_scale ); + temp[4] = FT_DivFix( temp[4], temp_scale ); + temp[5] = FT_DivFix( temp[5], temp_scale ); + temp[3] = 0x10000L; + } + + matrix->xx = temp[0]; + matrix->yx = temp[1]; + matrix->xy = temp[2]; + matrix->yy = temp[3]; + + /* note that the offsets must be expressed in integer font units */ + offset->x = temp[4] >> 16; + offset->y = temp[5] >> 16; + } + + + static void + t42_parse_encoding( T42_Face face, + T42_Loader loader ) + { + T42_Parser parser = &loader->parser; + FT_Byte* cur; + FT_Byte* limit = parser->root.limit; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + + T1_Skip_Spaces( parser ); + cur = parser->root.cursor; + if ( cur >= limit ) + { + FT_ERROR(( "t42_parse_encoding: out of bounds\n" )); + parser->root.error = T42_Err_Invalid_File_Format; + return; + } + + /* if we have a number or `[', the encoding is an array, */ + /* and we must load it now */ + if ( ft_isdigit( *cur ) || *cur == '[' ) + { + T1_Encoding encode = &face->type1.encoding; + FT_UInt count, n; + PS_Table char_table = &loader->encoding_table; + FT_Memory memory = parser->root.memory; + FT_Error error; + FT_Bool only_immediates = 0; + + + /* read the number of entries in the encoding; should be 256 */ + if ( *cur == '[' ) + { + count = 256; + only_immediates = 1; + parser->root.cursor++; + } + else + count = (FT_UInt)T1_ToInt( parser ); + + T1_Skip_Spaces( parser ); + if ( parser->root.cursor >= limit ) + return; + + /* we use a T1_Table to store our charnames */ + loader->num_chars = encode->num_chars = count; + if ( FT_NEW_ARRAY( encode->char_index, count ) || + FT_NEW_ARRAY( encode->char_name, count ) || + FT_SET_ERROR( psaux->ps_table_funcs->init( + char_table, count, memory ) ) ) + { + parser->root.error = error; + return; + } + + /* We need to `zero' out encoding_table.elements */ + for ( n = 0; n < count; n++ ) + { + char* notdef = (char *)".notdef"; + + + T1_Add_Table( char_table, n, notdef, 8 ); + } + + /* Now we need to read records of the form */ + /* */ + /* ... charcode /charname ... */ + /* */ + /* for each entry in our table. */ + /* */ + /* We simply look for a number followed by an immediate */ + /* name. Note that this ignores correctly the sequence */ + /* that is often seen in type42 fonts: */ + /* */ + /* 0 1 255 { 1 index exch /.notdef put } for dup */ + /* */ + /* used to clean the encoding array before anything else. */ + /* */ + /* Alternatively, if the array is directly given as */ + /* */ + /* /Encoding [ ... ] */ + /* */ + /* we only read immediates. */ + + n = 0; + T1_Skip_Spaces( parser ); + + while ( parser->root.cursor < limit ) + { + cur = parser->root.cursor; + + /* we stop when we encounter `def' or `]' */ + if ( *cur == 'd' && cur + 3 < limit ) + { + if ( cur[1] == 'e' && + cur[2] == 'f' && + t42_is_space( cur[3] ) ) + { + FT_TRACE6(( "encoding end\n" )); + cur += 3; + break; + } + } + if ( *cur == ']' ) + { + FT_TRACE6(( "encoding end\n" )); + cur++; + break; + } + + /* check whether we have found an entry */ + if ( ft_isdigit( *cur ) || only_immediates ) + { + FT_Int charcode; + + + if ( only_immediates ) + charcode = n; + else + { + charcode = (FT_Int)T1_ToInt( parser ); + T1_Skip_Spaces( parser ); + } + + cur = parser->root.cursor; + + if ( *cur == '/' && cur + 2 < limit && n < count ) + { + FT_PtrDist len; + + + cur++; + + parser->root.cursor = cur; + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + + len = parser->root.cursor - cur; + + parser->root.error = T1_Add_Table( char_table, charcode, + cur, len + 1 ); + if ( parser->root.error ) + return; + char_table->elements[charcode][len] = '\0'; + + n++; + } + } + else + { + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + } + + T1_Skip_Spaces( parser ); + } + + face->type1.encoding_type = T1_ENCODING_TYPE_ARRAY; + parser->root.cursor = cur; + } + + /* Otherwise, we should have either `StandardEncoding', */ + /* `ExpertEncoding', or `ISOLatin1Encoding' */ + else + { + if ( cur + 17 < limit && + ft_strncmp( (const char*)cur, "StandardEncoding", 16 ) == 0 ) + face->type1.encoding_type = T1_ENCODING_TYPE_STANDARD; + + else if ( cur + 15 < limit && + ft_strncmp( (const char*)cur, "ExpertEncoding", 14 ) == 0 ) + face->type1.encoding_type = T1_ENCODING_TYPE_EXPERT; + + else if ( cur + 18 < limit && + ft_strncmp( (const char*)cur, "ISOLatin1Encoding", 17 ) == 0 ) + face->type1.encoding_type = T1_ENCODING_TYPE_ISOLATIN1; + + else + { + FT_ERROR(( "t42_parse_encoding: invalid token\n" )); + parser->root.error = T42_Err_Invalid_File_Format; + } + } + } + + + typedef enum T42_Load_Status_ + { + BEFORE_START, + BEFORE_TABLE_DIR, + OTHER_TABLES + + } T42_Load_Status; + + + static void + t42_parse_sfnts( T42_Face face, + T42_Loader loader ) + { + T42_Parser parser = &loader->parser; + FT_Memory memory = parser->root.memory; + FT_Byte* cur; + FT_Byte* limit = parser->root.limit; + FT_Error error; + FT_Int num_tables = 0; + FT_ULong count, ttf_size = 0; + + FT_Long n, string_size, old_string_size, real_size; + FT_Byte* string_buf = NULL; + FT_Bool allocated = 0; + + T42_Load_Status status; + + + /* The format is */ + /* */ + /* /sfnts [ ... ] def */ + /* */ + /* or */ + /* */ + /* /sfnts [ */ + /* RD */ + /* RD */ + /* ... */ + /* ] def */ + /* */ + /* with exactly one space after the `RD' token. */ + + T1_Skip_Spaces( parser ); + + if ( parser->root.cursor >= limit || *parser->root.cursor++ != '[' ) + { + FT_ERROR(( "t42_parse_sfnts: can't find begin of sfnts vector\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + T1_Skip_Spaces( parser ); + status = BEFORE_START; + string_size = 0; + old_string_size = 0; + count = 0; + + while ( parser->root.cursor < limit ) + { + cur = parser->root.cursor; + + if ( *cur == ']' ) + { + parser->root.cursor++; + goto Exit; + } + + else if ( *cur == '<' ) + { + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + + /* don't include delimiters */ + string_size = (FT_Long)( ( parser->root.cursor - cur - 2 + 1 ) / 2 ); + if ( FT_REALLOC( string_buf, old_string_size, string_size ) ) + goto Fail; + + allocated = 1; + + parser->root.cursor = cur; + (void)T1_ToBytes( parser, string_buf, string_size, &real_size, 1 ); + old_string_size = string_size; + string_size = real_size; + } + + else if ( ft_isdigit( *cur ) ) + { + if ( allocated ) + { + FT_ERROR(( "t42_parse_sfnts: " + "can't handle mixed binary and hex strings\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + string_size = T1_ToInt( parser ); + if ( string_size < 0 ) + { + FT_ERROR(( "t42_parse_sfnts: invalid string size\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + T1_Skip_PS_Token( parser ); /* `RD' */ + if ( parser->root.error ) + return; + + string_buf = parser->root.cursor + 1; /* one space after `RD' */ + + if ( limit - parser->root.cursor < string_size ) + { + FT_ERROR(( "t42_parse_sfnts: too many binary data\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + else + parser->root.cursor += string_size + 1; + } + + if ( !string_buf ) + { + FT_ERROR(( "t42_parse_sfnts: invalid data in sfnts array\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + /* A string can have a trailing zero (odd) byte for padding. */ + /* Ignore it. */ + if ( ( string_size & 1 ) && string_buf[string_size - 1] == 0 ) + string_size--; + + if ( !string_size ) + { + FT_ERROR(( "t42_parse_sfnts: invalid string\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + for ( n = 0; n < string_size; n++ ) + { + switch ( status ) + { + case BEFORE_START: + /* load offset table, 12 bytes */ + if ( count < 12 ) + { + face->ttf_data[count++] = string_buf[n]; + continue; + } + else + { + num_tables = 16 * face->ttf_data[4] + face->ttf_data[5]; + status = BEFORE_TABLE_DIR; + ttf_size = 12 + 16 * num_tables; + + if ( FT_REALLOC( face->ttf_data, 12, ttf_size ) ) + goto Fail; + } + /* fall through */ + + case BEFORE_TABLE_DIR: + /* the offset table is read; read the table directory */ + if ( count < ttf_size ) + { + face->ttf_data[count++] = string_buf[n]; + continue; + } + else + { + int i; + FT_ULong len; + + + for ( i = 0; i < num_tables; i++ ) + { + FT_Byte* p = face->ttf_data + 12 + 16 * i + 12; + + + len = FT_PEEK_ULONG( p ); + + /* Pad to a 4-byte boundary length */ + ttf_size += ( len + 3 ) & ~3; + } + + status = OTHER_TABLES; + face->ttf_size = ttf_size; + + /* there are no more than 256 tables, so no size check here */ + if ( FT_REALLOC( face->ttf_data, 12 + 16 * num_tables, + ttf_size + 1 ) ) + goto Fail; + } + /* fall through */ + + case OTHER_TABLES: + /* all other tables are just copied */ + if ( count >= ttf_size ) + { + FT_ERROR(( "t42_parse_sfnts: too many binary data\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + face->ttf_data[count++] = string_buf[n]; + } + } + + T1_Skip_Spaces( parser ); + } + + /* if control reaches this point, the format was not valid */ + error = T42_Err_Invalid_File_Format; + + Fail: + parser->root.error = error; + + Exit: + if ( allocated ) + FT_FREE( string_buf ); + } + + + static void + t42_parse_charstrings( T42_Face face, + T42_Loader loader ) + { + T42_Parser parser = &loader->parser; + PS_Table code_table = &loader->charstrings; + PS_Table name_table = &loader->glyph_names; + PS_Table swap_table = &loader->swap_table; + FT_Memory memory = parser->root.memory; + FT_Error error; + + PSAux_Service psaux = (PSAux_Service)face->psaux; + + FT_Byte* cur; + FT_Byte* limit = parser->root.limit; + FT_UInt n; + FT_UInt notdef_index = 0; + FT_Byte notdef_found = 0; + + + T1_Skip_Spaces( parser ); + + if ( parser->root.cursor >= limit ) + { + FT_ERROR(( "t42_parse_charstrings: out of bounds\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + if ( ft_isdigit( *parser->root.cursor ) ) + { + loader->num_glyphs = (FT_UInt)T1_ToInt( parser ); + if ( parser->root.error ) + return; + } + else if ( *parser->root.cursor == '<' ) + { + /* We have `<< ... >>'. Count the number of `/' in the dictionary */ + /* to get its size. */ + FT_UInt count = 0; + + + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + T1_Skip_Spaces( parser ); + cur = parser->root.cursor; + + while ( parser->root.cursor < limit ) + { + if ( *parser->root.cursor == '/' ) + count++; + else if ( *parser->root.cursor == '>' ) + { + loader->num_glyphs = count; + parser->root.cursor = cur; /* rewind */ + break; + } + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + T1_Skip_Spaces( parser ); + } + } + else + { + FT_ERROR(( "t42_parse_charstrings: invalid token\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + if ( parser->root.cursor >= limit ) + { + FT_ERROR(( "t42_parse_charstrings: out of bounds\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + /* initialize tables */ + + error = psaux->ps_table_funcs->init( code_table, + loader->num_glyphs, + memory ); + if ( error ) + goto Fail; + + error = psaux->ps_table_funcs->init( name_table, + loader->num_glyphs, + memory ); + if ( error ) + goto Fail; + + /* Initialize table for swapping index notdef_index and */ + /* index 0 names and codes (if necessary). */ + + error = psaux->ps_table_funcs->init( swap_table, 4, memory ); + if ( error ) + goto Fail; + + n = 0; + + for (;;) + { + /* The format is simple: */ + /* `/glyphname' + index [+ def] */ + + T1_Skip_Spaces( parser ); + + cur = parser->root.cursor; + if ( cur >= limit ) + break; + + /* We stop when we find an `end' keyword or '>' */ + if ( *cur == 'e' && + cur + 3 < limit && + cur[1] == 'n' && + cur[2] == 'd' && + t42_is_space( cur[3] ) ) + break; + if ( *cur == '>' ) + break; + + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + return; + + if ( *cur == '/' ) + { + FT_PtrDist len; + + + if ( cur + 1 >= limit ) + { + FT_ERROR(( "t42_parse_charstrings: out of bounds\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + cur++; /* skip `/' */ + len = parser->root.cursor - cur; + + error = T1_Add_Table( name_table, n, cur, len + 1 ); + if ( error ) + goto Fail; + + /* add a trailing zero to the name table */ + name_table->elements[n][len] = '\0'; + + /* record index of /.notdef */ + if ( *cur == '.' && + ft_strcmp( ".notdef", + (const char*)(name_table->elements[n]) ) == 0 ) + { + notdef_index = n; + notdef_found = 1; + } + + T1_Skip_Spaces( parser ); + + cur = parser->root.cursor; + + (void)T1_ToInt( parser ); + if ( parser->root.cursor >= limit ) + { + FT_ERROR(( "t42_parse_charstrings: out of bounds\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + len = parser->root.cursor - cur; + + error = T1_Add_Table( code_table, n, cur, len + 1 ); + if ( error ) + goto Fail; + + code_table->elements[n][len] = '\0'; + + n++; + if ( n >= loader->num_glyphs ) + break; + } + } + + loader->num_glyphs = n; + + if ( !notdef_found ) + { + FT_ERROR(( "t42_parse_charstrings: no /.notdef glyph\n" )); + error = T42_Err_Invalid_File_Format; + goto Fail; + } + + /* if /.notdef does not occupy index 0, do our magic. */ + if ( ft_strcmp( (const char*)".notdef", + (const char*)name_table->elements[0] ) ) + { + /* Swap glyph in index 0 with /.notdef glyph. First, add index 0 */ + /* name and code entries to swap_table. Then place notdef_index */ + /* name and code entries into swap_table. Then swap name and code */ + /* entries at indices notdef_index and 0 using values stored in */ + /* swap_table. */ + + /* Index 0 name */ + error = T1_Add_Table( swap_table, 0, + name_table->elements[0], + name_table->lengths [0] ); + if ( error ) + goto Fail; + + /* Index 0 code */ + error = T1_Add_Table( swap_table, 1, + code_table->elements[0], + code_table->lengths [0] ); + if ( error ) + goto Fail; + + /* Index notdef_index name */ + error = T1_Add_Table( swap_table, 2, + name_table->elements[notdef_index], + name_table->lengths [notdef_index] ); + if ( error ) + goto Fail; + + /* Index notdef_index code */ + error = T1_Add_Table( swap_table, 3, + code_table->elements[notdef_index], + code_table->lengths [notdef_index] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( name_table, notdef_index, + swap_table->elements[0], + swap_table->lengths [0] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( code_table, notdef_index, + swap_table->elements[1], + swap_table->lengths [1] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( name_table, 0, + swap_table->elements[2], + swap_table->lengths [2] ); + if ( error ) + goto Fail; + + error = T1_Add_Table( code_table, 0, + swap_table->elements[3], + swap_table->lengths [3] ); + if ( error ) + goto Fail; + + } + + return; + + Fail: + parser->root.error = error; + } + + + static FT_Error + t42_load_keyword( T42_Face face, + T42_Loader loader, + T1_Field field ) + { + FT_Error error; + void* dummy_object; + void** objects; + FT_UInt max_objects = 0; + + + /* if the keyword has a dedicated callback, call it */ + if ( field->type == T1_FIELD_TYPE_CALLBACK ) + { + field->reader( (FT_Face)face, loader ); + error = loader->parser.root.error; + goto Exit; + } + + /* now the keyword is either a simple field or a table of fields; */ + /* we are now going to take care of it */ + + switch ( field->location ) + { + case T1_FIELD_LOCATION_FONT_INFO: + dummy_object = &face->type1.font_info; + break; + + case T1_FIELD_LOCATION_FONT_EXTRA: + dummy_object = &face->type1.font_extra; + break; + + case T1_FIELD_LOCATION_BBOX: + dummy_object = &face->type1.font_bbox; + break; + + default: + dummy_object = &face->type1; + } + + objects = &dummy_object; + + if ( field->type == T1_FIELD_TYPE_INTEGER_ARRAY || + field->type == T1_FIELD_TYPE_FIXED_ARRAY ) + error = T1_Load_Field_Table( &loader->parser, field, + objects, max_objects, 0 ); + else + error = T1_Load_Field( &loader->parser, field, + objects, max_objects, 0 ); + + Exit: + return error; + } + + + FT_LOCAL_DEF( FT_Error ) + t42_parse_dict( T42_Face face, + T42_Loader loader, + FT_Byte* base, + FT_Long size ) + { + T42_Parser parser = &loader->parser; + FT_Byte* limit; + FT_Int n_keywords = (FT_Int)( sizeof ( t42_keywords ) / + sizeof ( t42_keywords[0] ) ); + + + parser->root.cursor = base; + parser->root.limit = base + size; + parser->root.error = T42_Err_Ok; + + limit = parser->root.limit; + + T1_Skip_Spaces( parser ); + + while ( parser->root.cursor < limit ) + { + FT_Byte* cur; + + + cur = parser->root.cursor; + + /* look for `FontDirectory' which causes problems for some fonts */ + if ( *cur == 'F' && cur + 25 < limit && + ft_strncmp( (char*)cur, "FontDirectory", 13 ) == 0 ) + { + FT_Byte* cur2; + + + /* skip the `FontDirectory' keyword */ + T1_Skip_PS_Token( parser ); + T1_Skip_Spaces ( parser ); + cur = cur2 = parser->root.cursor; + + /* look up the `known' keyword */ + while ( cur < limit ) + { + if ( *cur == 'k' && cur + 5 < limit && + ft_strncmp( (char*)cur, "known", 5 ) == 0 ) + break; + + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + T1_Skip_Spaces ( parser ); + cur = parser->root.cursor; + } + + if ( cur < limit ) + { + T1_TokenRec token; + + + /* skip the `known' keyword and the token following it */ + T1_Skip_PS_Token( parser ); + T1_ToToken( parser, &token ); + + /* if the last token was an array, skip it! */ + if ( token.type == T1_TOKEN_TYPE_ARRAY ) + cur2 = parser->root.cursor; + } + parser->root.cursor = cur2; + } + + /* look for immediates */ + else if ( *cur == '/' && cur + 2 < limit ) + { + FT_PtrDist len; + + + cur++; + + parser->root.cursor = cur; + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + + len = parser->root.cursor - cur; + + if ( len > 0 && len < 22 && parser->root.cursor < limit ) + { + int i; + + + /* now compare the immediate name to the keyword table */ + + /* loop through all known keywords */ + for ( i = 0; i < n_keywords; i++ ) + { + T1_Field keyword = (T1_Field)&t42_keywords[i]; + FT_Byte *name = (FT_Byte*)keyword->ident; + + + if ( !name ) + continue; + + if ( cur[0] == name[0] && + len == (FT_PtrDist)ft_strlen( (const char *)name ) && + ft_memcmp( cur, name, len ) == 0 ) + { + /* we found it -- run the parsing callback! */ + parser->root.error = t42_load_keyword( face, + loader, + keyword ); + if ( parser->root.error ) + return parser->root.error; + break; + } + } + } + } + else + { + T1_Skip_PS_Token( parser ); + if ( parser->root.error ) + goto Exit; + } + + T1_Skip_Spaces( parser ); + } + + Exit: + return parser->root.error; + } + + + FT_LOCAL_DEF( void ) + t42_loader_init( T42_Loader loader, + T42_Face face ) + { + FT_UNUSED( face ); + + FT_MEM_ZERO( loader, sizeof ( *loader ) ); + loader->num_glyphs = 0; + loader->num_chars = 0; + + /* initialize the tables -- simply set their `init' field to 0 */ + loader->encoding_table.init = 0; + loader->charstrings.init = 0; + loader->glyph_names.init = 0; + } + + + FT_LOCAL_DEF( void ) + t42_loader_done( T42_Loader loader ) + { + T42_Parser parser = &loader->parser; + + + /* finalize tables */ + T1_Release_Table( &loader->encoding_table ); + T1_Release_Table( &loader->charstrings ); + T1_Release_Table( &loader->glyph_names ); + T1_Release_Table( &loader->swap_table ); + + /* finalize parser */ + t42_parser_done( parser ); + } + + +/* END */ diff --git a/src/type42/t42parse.h b/src/type42/t42parse.h new file mode 100644 index 0000000..f77ec4a --- /dev/null +++ b/src/type42/t42parse.h @@ -0,0 +1,90 @@ +/***************************************************************************/ +/* */ +/* t42parse.h */ +/* */ +/* Type 42 font parser (specification). */ +/* */ +/* Copyright 2002, 2003 by Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T42PARSE_H__ +#define __T42PARSE_H__ + + +#include "t42objs.h" +#include FT_INTERNAL_POSTSCRIPT_AUX_H + + +FT_BEGIN_HEADER + + typedef struct T42_ParserRec_ + { + PS_ParserRec root; + FT_Stream stream; + + FT_Byte* base_dict; + FT_Long base_len; + + FT_Bool in_memory; + + } T42_ParserRec, *T42_Parser; + + + typedef struct T42_Loader_ + { + T42_ParserRec parser; /* parser used to read the stream */ + + FT_UInt num_chars; /* number of characters in encoding */ + PS_TableRec encoding_table; /* PS_Table used to store the */ + /* encoding character names */ + + FT_UInt num_glyphs; + PS_TableRec glyph_names; + PS_TableRec charstrings; + PS_TableRec swap_table; /* For moving .notdef glyph to index 0. */ + + } T42_LoaderRec, *T42_Loader; + + + FT_LOCAL( FT_Error ) + t42_parser_init( T42_Parser parser, + FT_Stream stream, + FT_Memory memory, + PSAux_Service psaux ); + + FT_LOCAL( void ) + t42_parser_done( T42_Parser parser ); + + + FT_LOCAL( FT_Error ) + t42_parse_dict( T42_Face face, + T42_Loader loader, + FT_Byte* base, + FT_Long size ); + + + FT_LOCAL( void ) + t42_loader_init( T42_Loader loader, + T42_Face face ); + + FT_LOCAL( void ) + t42_loader_done( T42_Loader loader ); + + + /* */ + +FT_END_HEADER + + +#endif /* __T42PARSE_H__ */ + + +/* END */ diff --git a/src/type42/t42types.h b/src/type42/t42types.h new file mode 100644 index 0000000..c7c2db4 --- /dev/null +++ b/src/type42/t42types.h @@ -0,0 +1,56 @@ +/***************************************************************************/ +/* */ +/* t42types.h */ +/* */ +/* Type 42 font data types (specification only). */ +/* */ +/* Copyright 2002, 2003, 2006, 2008 by Roberto Alameda. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __T42TYPES_H__ +#define __T42TYPES_H__ + + +#include +#include FT_FREETYPE_H +#include FT_TYPE1_TABLES_H +#include FT_INTERNAL_TYPE1_TYPES_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H + + +FT_BEGIN_HEADER + + + typedef struct T42_FaceRec_ + { + FT_FaceRec root; + T1_FontRec type1; + const void* psnames; + const void* psaux; +#if 0 + const void* afm_data; +#endif + FT_Byte* ttf_data; + FT_ULong ttf_size; + FT_Face ttf_face; + FT_CharMapRec charmaprecs[2]; + FT_CharMap charmaps[2]; + PS_UnicodesRec unicode_map; + + } T42_FaceRec, *T42_Face; + + +FT_END_HEADER + +#endif /* __T42TYPES_H__ */ + + +/* END */ diff --git a/src/type42/type42.c b/src/type42/type42.c new file mode 100644 index 0000000..d13df56 --- /dev/null +++ b/src/type42/type42.c @@ -0,0 +1,25 @@ +/***************************************************************************/ +/* */ +/* type42.c */ +/* */ +/* FreeType Type 42 driver component. */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include +#include "t42objs.c" +#include "t42parse.c" +#include "t42drivr.c" + +/* END */ diff --git a/src/winfonts/Jamfile b/src/winfonts/Jamfile new file mode 100644 index 0000000..71cf567 --- /dev/null +++ b/src/winfonts/Jamfile @@ -0,0 +1,16 @@ +# FreeType 2 src/winfonts Jamfile +# +# Copyright 2001 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +SubDir FT2_TOP $(FT2_SRC_DIR) winfonts ; + +Library $(FT2_LIB) : winfnt.c ; + +# end of src/winfonts Jamfile diff --git a/src/winfonts/fnterrs.h b/src/winfonts/fnterrs.h new file mode 100644 index 0000000..463ba77 --- /dev/null +++ b/src/winfonts/fnterrs.h @@ -0,0 +1,42 @@ +/***************************************************************************/ +/* */ +/* fnterrs.h */ +/* */ +/* Win FNT/FON error codes (specification only). */ +/* */ +/* Copyright 2001, 2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This file is used to define the Windows FNT/FON error enumeration */ + /* constants. */ + /* */ + /*************************************************************************/ + +#ifndef __FNTERRS_H__ +#define __FNTERRS_H__ + +#include FT_MODULE_ERRORS_H + +#undef __FTERRORS_H__ + +#undef FT_ERR_PREFIX +#define FT_ERR_PREFIX FNT_Err_ +#define FT_ERR_BASE FT_Mod_Err_Winfonts + +#include FT_ERRORS_H + +#endif /* __FNTERRS_H__ */ + + +/* END */ diff --git a/src/winfonts/module.mk b/src/winfonts/module.mk new file mode 100644 index 0000000..b44d7f0 --- /dev/null +++ b/src/winfonts/module.mk @@ -0,0 +1,23 @@ +# +# FreeType 2 Windows FNT/FON module definition +# + + +# Copyright 1996-2000, 2006 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +FTMODULE_H_COMMANDS += WINDOWS_DRIVER + +define WINDOWS_DRIVER +$(OPEN_DRIVER) FT_Driver_ClassRec, winfnt_driver_class $(CLOSE_DRIVER) +$(ECHO_DRIVER)winfnt $(ECHO_DRIVER_DESC)Windows bitmap fonts with extension *.fnt or *.fon$(ECHO_DRIVER_DONE) +endef + +# EOF diff --git a/src/winfonts/rules.mk b/src/winfonts/rules.mk new file mode 100644 index 0000000..71a7df2 --- /dev/null +++ b/src/winfonts/rules.mk @@ -0,0 +1,65 @@ +# +# FreeType 2 Windows FNT/FON driver configuration rules +# + + +# Copyright 1996-2000, 2001, 2003 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +# Windows driver directory +# +FNT_DIR := $(SRC_DIR)/winfonts + + +FNT_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(FNT_DIR)) + + +# Windows driver sources (i.e., C files) +# +FNT_DRV_SRC := $(FNT_DIR)/winfnt.c + +# Windows driver headers +# +FNT_DRV_H := $(FNT_DRV_SRC:%.c=%.h) \ + $(FNT_DIR)/fnterrs.h + + +# Windows driver object(s) +# +# FNT_DRV_OBJ_M is used during `multi' builds +# FNT_DRV_OBJ_S is used during `single' builds +# +FNT_DRV_OBJ_M := $(FNT_DRV_SRC:$(FNT_DIR)/%.c=$(OBJ_DIR)/%.$O) +FNT_DRV_OBJ_S := $(OBJ_DIR)/winfnt.$O + +# Windows driver source file for single build +# +FNT_DRV_SRC_S := $(FNT_DIR)/winfnt.c + + +# Windows driver - single object +# +$(FNT_DRV_OBJ_S): $(FNT_DRV_SRC_S) $(FNT_DRV_SRC) $(FREETYPE_H) $(FNT_DRV_H) + $(FNT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(FNT_DRV_SRC_S)) + + +# Windows driver - multiple objects +# +$(OBJ_DIR)/%.$O: $(FNT_DIR)/%.c $(FREETYPE_H) $(FNT_DRV_H) + $(FNT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# update main driver object lists +# +DRV_OBJS_S += $(FNT_DRV_OBJ_S) +DRV_OBJS_M += $(FNT_DRV_OBJ_M) + + +# EOF diff --git a/src/winfonts/winfnt.c b/src/winfonts/winfnt.c new file mode 100644 index 0000000..a551896 --- /dev/null +++ b/src/winfonts/winfnt.c @@ -0,0 +1,1159 @@ +/***************************************************************************/ +/* */ +/* winfnt.c */ +/* */ +/* FreeType font driver for Windows FNT/FON files */ +/* */ +/* Copyright 1996-2004, 2006-2012 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* Copyright 2003 Huw D M Davies for Codeweavers */ +/* Copyright 2007 Dmitry Timoshkov for Codeweavers */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include +#include FT_WINFONTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_OBJECTS_H +#include FT_TRUETYPE_IDS_H + +#include "winfnt.h" +#include "fnterrs.h" +#include FT_SERVICE_WINFNT_H +#include FT_SERVICE_XFREE86_NAME_H + + /*************************************************************************/ + /* */ + /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ + /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ + /* messages during execution. */ + /* */ +#undef FT_COMPONENT +#define FT_COMPONENT trace_winfnt + + + static const FT_Frame_Field winmz_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinMZ_HeaderRec + + FT_FRAME_START( 64 ), + FT_FRAME_USHORT_LE ( magic ), + FT_FRAME_SKIP_BYTES( 29 * 2 ), + FT_FRAME_ULONG_LE ( lfanew ), + FT_FRAME_END + }; + + static const FT_Frame_Field winne_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinNE_HeaderRec + + FT_FRAME_START( 40 ), + FT_FRAME_USHORT_LE ( magic ), + FT_FRAME_SKIP_BYTES( 34 ), + FT_FRAME_USHORT_LE ( resource_tab_offset ), + FT_FRAME_USHORT_LE ( rname_tab_offset ), + FT_FRAME_END + }; + + static const FT_Frame_Field winpe32_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinPE32_HeaderRec + + FT_FRAME_START( 248 ), + FT_FRAME_ULONG_LE ( magic ), /* PE00 */ + FT_FRAME_USHORT_LE ( machine ), /* 0x014c - i386 */ + FT_FRAME_USHORT_LE ( number_of_sections ), + FT_FRAME_SKIP_BYTES( 12 ), + FT_FRAME_USHORT_LE ( size_of_optional_header ), + FT_FRAME_SKIP_BYTES( 2 ), + FT_FRAME_USHORT_LE ( magic32 ), /* 0x10b */ + FT_FRAME_SKIP_BYTES( 110 ), + FT_FRAME_ULONG_LE ( rsrc_virtual_address ), + FT_FRAME_ULONG_LE ( rsrc_size ), + FT_FRAME_SKIP_BYTES( 104 ), + FT_FRAME_END + }; + + static const FT_Frame_Field winpe32_section_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinPE32_SectionRec + + FT_FRAME_START( 40 ), + FT_FRAME_BYTES ( name, 8 ), + FT_FRAME_SKIP_BYTES( 4 ), + FT_FRAME_ULONG_LE ( virtual_address ), + FT_FRAME_ULONG_LE ( size_of_raw_data ), + FT_FRAME_ULONG_LE ( pointer_to_raw_data ), + FT_FRAME_SKIP_BYTES( 16 ), + FT_FRAME_END + }; + + static const FT_Frame_Field winpe_rsrc_dir_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinPE_RsrcDirRec + + FT_FRAME_START( 16 ), + FT_FRAME_ULONG_LE ( characteristics ), + FT_FRAME_ULONG_LE ( time_date_stamp ), + FT_FRAME_USHORT_LE( major_version ), + FT_FRAME_USHORT_LE( minor_version ), + FT_FRAME_USHORT_LE( number_of_named_entries ), + FT_FRAME_USHORT_LE( number_of_id_entries ), + FT_FRAME_END + }; + + static const FT_Frame_Field winpe_rsrc_dir_entry_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinPE_RsrcDirEntryRec + + FT_FRAME_START( 8 ), + FT_FRAME_ULONG_LE( name ), + FT_FRAME_ULONG_LE( offset ), + FT_FRAME_END + }; + + static const FT_Frame_Field winpe_rsrc_data_entry_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE WinPE_RsrcDataEntryRec + + FT_FRAME_START( 16 ), + FT_FRAME_ULONG_LE( offset_to_data ), + FT_FRAME_ULONG_LE( size ), + FT_FRAME_ULONG_LE( code_page ), + FT_FRAME_ULONG_LE( reserved ), + FT_FRAME_END + }; + + static const FT_Frame_Field winfnt_header_fields[] = + { +#undef FT_STRUCTURE +#define FT_STRUCTURE FT_WinFNT_HeaderRec + + FT_FRAME_START( 148 ), + FT_FRAME_USHORT_LE( version ), + FT_FRAME_ULONG_LE ( file_size ), + FT_FRAME_BYTES ( copyright, 60 ), + FT_FRAME_USHORT_LE( file_type ), + FT_FRAME_USHORT_LE( nominal_point_size ), + FT_FRAME_USHORT_LE( vertical_resolution ), + FT_FRAME_USHORT_LE( horizontal_resolution ), + FT_FRAME_USHORT_LE( ascent ), + FT_FRAME_USHORT_LE( internal_leading ), + FT_FRAME_USHORT_LE( external_leading ), + FT_FRAME_BYTE ( italic ), + FT_FRAME_BYTE ( underline ), + FT_FRAME_BYTE ( strike_out ), + FT_FRAME_USHORT_LE( weight ), + FT_FRAME_BYTE ( charset ), + FT_FRAME_USHORT_LE( pixel_width ), + FT_FRAME_USHORT_LE( pixel_height ), + FT_FRAME_BYTE ( pitch_and_family ), + FT_FRAME_USHORT_LE( avg_width ), + FT_FRAME_USHORT_LE( max_width ), + FT_FRAME_BYTE ( first_char ), + FT_FRAME_BYTE ( last_char ), + FT_FRAME_BYTE ( default_char ), + FT_FRAME_BYTE ( break_char ), + FT_FRAME_USHORT_LE( bytes_per_row ), + FT_FRAME_ULONG_LE ( device_offset ), + FT_FRAME_ULONG_LE ( face_name_offset ), + FT_FRAME_ULONG_LE ( bits_pointer ), + FT_FRAME_ULONG_LE ( bits_offset ), + FT_FRAME_BYTE ( reserved ), + FT_FRAME_ULONG_LE ( flags ), + FT_FRAME_USHORT_LE( A_space ), + FT_FRAME_USHORT_LE( B_space ), + FT_FRAME_USHORT_LE( C_space ), + FT_FRAME_ULONG_LE ( color_table_offset ), + FT_FRAME_BYTES ( reserved1, 16 ), + FT_FRAME_END + }; + + + static void + fnt_font_done( FNT_Face face ) + { + FT_Memory memory = FT_FACE( face )->memory; + FT_Stream stream = FT_FACE( face )->stream; + FNT_Font font = face->font; + + + if ( !font ) + return; + + if ( font->fnt_frame ) + FT_FRAME_RELEASE( font->fnt_frame ); + FT_FREE( font->family_name ); + + FT_FREE( font ); + face->font = 0; + } + + + static FT_Error + fnt_font_load( FNT_Font font, + FT_Stream stream ) + { + FT_Error error; + FT_WinFNT_Header header = &font->header; + FT_Bool new_format; + FT_UInt size; + + + /* first of all, read the FNT header */ + if ( FT_STREAM_SEEK( font->offset ) || + FT_STREAM_READ_FIELDS( winfnt_header_fields, header ) ) + goto Exit; + + /* check header */ + if ( header->version != 0x200 && + header->version != 0x300 ) + { + FT_TRACE2(( " not a Windows FNT file\n" )); + error = FNT_Err_Unknown_File_Format; + goto Exit; + } + + new_format = FT_BOOL( font->header.version == 0x300 ); + size = new_format ? 148 : 118; + + if ( header->file_size < size ) + { + FT_TRACE2(( " not a Windows FNT file\n" )); + error = FNT_Err_Unknown_File_Format; + goto Exit; + } + + /* Version 2 doesn't have these fields */ + if ( header->version == 0x200 ) + { + header->flags = 0; + header->A_space = 0; + header->B_space = 0; + header->C_space = 0; + + header->color_table_offset = 0; + } + + if ( header->file_type & 1 ) + { + FT_TRACE2(( "[can't handle vector FNT fonts]\n" )); + error = FNT_Err_Unknown_File_Format; + goto Exit; + } + + /* this is a FNT file/table; extract its frame */ + if ( FT_STREAM_SEEK( font->offset ) || + FT_FRAME_EXTRACT( header->file_size, font->fnt_frame ) ) + goto Exit; + + Exit: + return error; + } + + + static FT_Error + fnt_face_get_dll_font( FNT_Face face, + FT_Int face_index ) + { + FT_Error error; + FT_Stream stream = FT_FACE( face )->stream; + FT_Memory memory = FT_FACE( face )->memory; + WinMZ_HeaderRec mz_header; + + + face->font = 0; + + /* does it begin with an MZ header? */ + if ( FT_STREAM_SEEK( 0 ) || + FT_STREAM_READ_FIELDS( winmz_header_fields, &mz_header ) ) + goto Exit; + + error = FNT_Err_Unknown_File_Format; + if ( mz_header.magic == WINFNT_MZ_MAGIC ) + { + /* yes, now look for an NE header in the file */ + WinNE_HeaderRec ne_header; + + + FT_TRACE2(( "MZ signature found\n" )); + + if ( FT_STREAM_SEEK( mz_header.lfanew ) || + FT_STREAM_READ_FIELDS( winne_header_fields, &ne_header ) ) + goto Exit; + + error = FNT_Err_Unknown_File_Format; + if ( ne_header.magic == WINFNT_NE_MAGIC ) + { + /* good, now look into the resource table for each FNT resource */ + FT_ULong res_offset = mz_header.lfanew + + ne_header.resource_tab_offset; + FT_UShort size_shift; + FT_UShort font_count = 0; + FT_ULong font_offset = 0; + + + FT_TRACE2(( "NE signature found\n" )); + + if ( FT_STREAM_SEEK( res_offset ) || + FT_FRAME_ENTER( ne_header.rname_tab_offset - + ne_header.resource_tab_offset ) ) + goto Exit; + + size_shift = FT_GET_USHORT_LE(); + + for (;;) + { + FT_UShort type_id, count; + + + type_id = FT_GET_USHORT_LE(); + if ( !type_id ) + break; + + count = FT_GET_USHORT_LE(); + + if ( type_id == 0x8008U ) + { + font_count = count; + font_offset = (FT_ULong)( FT_STREAM_POS() + 4 + + ( stream->cursor - stream->limit ) ); + break; + } + + stream->cursor += 4 + count * 12; + } + + FT_FRAME_EXIT(); + + if ( !font_count || !font_offset ) + { + FT_TRACE2(( "this file doesn't contain any FNT resources\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + /* loading `winfnt_header_fields' needs at least 118 bytes; */ + /* use this as a rough measure to check the expected font size */ + if ( font_count * 118UL > stream->size ) + { + FT_TRACE2(( "invalid number of faces\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + face->root.num_faces = font_count; + + if ( face_index >= font_count ) + { + error = FNT_Err_Invalid_Argument; + goto Exit; + } + else if ( face_index < 0 ) + goto Exit; + + if ( FT_NEW( face->font ) ) + goto Exit; + + if ( FT_STREAM_SEEK( font_offset + face_index * 12 ) || + FT_FRAME_ENTER( 12 ) ) + goto Fail; + + face->font->offset = (FT_ULong)FT_GET_USHORT_LE() << size_shift; + face->font->fnt_size = (FT_ULong)FT_GET_USHORT_LE() << size_shift; + + stream->cursor += 8; + + FT_FRAME_EXIT(); + + error = fnt_font_load( face->font, stream ); + } + else if ( ne_header.magic == WINFNT_PE_MAGIC ) + { + WinPE32_HeaderRec pe32_header; + WinPE32_SectionRec pe32_section; + WinPE_RsrcDirRec root_dir, name_dir, lang_dir; + WinPE_RsrcDirEntryRec dir_entry1, dir_entry2, dir_entry3; + WinPE_RsrcDataEntryRec data_entry; + + FT_Long root_dir_offset, name_dir_offset, lang_dir_offset; + FT_UShort i, j, k; + + + FT_TRACE2(( "PE signature found\n" )); + + if ( FT_STREAM_SEEK( mz_header.lfanew ) || + FT_STREAM_READ_FIELDS( winpe32_header_fields, &pe32_header ) ) + goto Exit; + + FT_TRACE2(( "magic %04lx, machine %02x, number_of_sections %u, " + "size_of_optional_header %02x\n" + "magic32 %02x, rsrc_virtual_address %04lx, " + "rsrc_size %04lx\n", + pe32_header.magic, pe32_header.machine, + pe32_header.number_of_sections, + pe32_header.size_of_optional_header, + pe32_header.magic32, pe32_header.rsrc_virtual_address, + pe32_header.rsrc_size )); + + if ( pe32_header.magic != WINFNT_PE_MAGIC /* check full signature */ || + pe32_header.machine != 0x014c /* i386 */ || + pe32_header.size_of_optional_header != 0xe0 /* FIXME */ || + pe32_header.magic32 != 0x10b ) + { + FT_TRACE2(( "this file has an invalid PE header\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + face->root.num_faces = 0; + + for ( i = 0; i < pe32_header.number_of_sections; i++ ) + { + if ( FT_STREAM_READ_FIELDS( winpe32_section_fields, + &pe32_section ) ) + goto Exit; + + FT_TRACE2(( "name %.8s, va %04lx, size %04lx, offset %04lx\n", + pe32_section.name, pe32_section.virtual_address, + pe32_section.size_of_raw_data, + pe32_section.pointer_to_raw_data )); + + if ( pe32_header.rsrc_virtual_address == + pe32_section.virtual_address ) + goto Found_rsrc_section; + } + + FT_TRACE2(( "this file doesn't contain any resources\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + + Found_rsrc_section: + FT_TRACE2(( "found resources section %.8s\n", pe32_section.name )); + + if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &root_dir ) ) + goto Exit; + + root_dir_offset = pe32_section.pointer_to_raw_data; + + for ( i = 0; i < root_dir.number_of_named_entries + + root_dir.number_of_id_entries; i++ ) + { + if ( FT_STREAM_SEEK( root_dir_offset + 16 + i * 8 ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields, + &dir_entry1 ) ) + goto Exit; + + if ( !(dir_entry1.offset & 0x80000000UL ) /* DataIsDirectory */ ) + { + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + dir_entry1.offset &= ~0x80000000UL; + + name_dir_offset = pe32_section.pointer_to_raw_data + + dir_entry1.offset; + + if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data + + dir_entry1.offset ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &name_dir ) ) + goto Exit; + + for ( j = 0; j < name_dir.number_of_named_entries + + name_dir.number_of_id_entries; j++ ) + { + if ( FT_STREAM_SEEK( name_dir_offset + 16 + j * 8 ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields, + &dir_entry2 ) ) + goto Exit; + + if ( !(dir_entry2.offset & 0x80000000UL ) /* DataIsDirectory */ ) + { + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + dir_entry2.offset &= ~0x80000000UL; + + lang_dir_offset = pe32_section.pointer_to_raw_data + + dir_entry2.offset; + + if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data + + dir_entry2.offset ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &lang_dir ) ) + goto Exit; + + for ( k = 0; k < lang_dir.number_of_named_entries + + lang_dir.number_of_id_entries; k++ ) + { + if ( FT_STREAM_SEEK( lang_dir_offset + 16 + k * 8 ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields, + &dir_entry3 ) ) + goto Exit; + + if ( dir_entry2.offset & 0x80000000UL /* DataIsDirectory */ ) + { + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + if ( dir_entry1.name == 8 /* RT_FONT */ ) + { + if ( FT_STREAM_SEEK( root_dir_offset + dir_entry3.offset ) || + FT_STREAM_READ_FIELDS( winpe_rsrc_data_entry_fields, + &data_entry ) ) + goto Exit; + + FT_TRACE2(( "found font #%lu, offset %04lx, " + "size %04lx, cp %lu\n", + dir_entry2.name, + pe32_section.pointer_to_raw_data + + data_entry.offset_to_data - + pe32_section.virtual_address, + data_entry.size, data_entry.code_page )); + + if ( face_index == face->root.num_faces ) + { + if ( FT_NEW( face->font ) ) + goto Exit; + + face->font->offset = pe32_section.pointer_to_raw_data + + data_entry.offset_to_data - + pe32_section.virtual_address; + face->font->fnt_size = data_entry.size; + + error = fnt_font_load( face->font, stream ); + if ( error ) + { + FT_TRACE2(( "font #%lu load error %d\n", + dir_entry2.name, error )); + goto Fail; + } + else + FT_TRACE2(( "font #%lu successfully loaded\n", + dir_entry2.name )); + } + + face->root.num_faces++; + } + } + } + } + } + + if ( !face->root.num_faces ) + { + FT_TRACE2(( "this file doesn't contain any RT_FONT resources\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + if ( face_index >= face->root.num_faces ) + { + error = FNT_Err_Invalid_Argument; + goto Exit; + } + } + + Fail: + if ( error ) + fnt_font_done( face ); + + Exit: + return error; + } + + + typedef struct FNT_CMapRec_ + { + FT_CMapRec cmap; + FT_UInt32 first; + FT_UInt32 count; + + } FNT_CMapRec, *FNT_CMap; + + + static FT_Error + fnt_cmap_init( FNT_CMap cmap ) + { + FNT_Face face = (FNT_Face)FT_CMAP_FACE( cmap ); + FNT_Font font = face->font; + + + cmap->first = (FT_UInt32) font->header.first_char; + cmap->count = (FT_UInt32)( font->header.last_char - cmap->first + 1 ); + + return 0; + } + + + static FT_UInt + fnt_cmap_char_index( FNT_CMap cmap, + FT_UInt32 char_code ) + { + FT_UInt gindex = 0; + + + char_code -= cmap->first; + if ( char_code < cmap->count ) + /* we artificially increase the glyph index; */ + /* FNT_Load_Glyph reverts to the right one */ + gindex = (FT_UInt)( char_code + 1 ); + return gindex; + } + + + static FT_UInt32 + fnt_cmap_char_next( FNT_CMap cmap, + FT_UInt32 *pchar_code ) + { + FT_UInt gindex = 0; + FT_UInt32 result = 0; + FT_UInt32 char_code = *pchar_code + 1; + + + if ( char_code <= cmap->first ) + { + result = cmap->first; + gindex = 1; + } + else + { + char_code -= cmap->first; + if ( char_code < cmap->count ) + { + result = cmap->first + char_code; + gindex = (FT_UInt)( char_code + 1 ); + } + } + + *pchar_code = result; + return gindex; + } + + + static const FT_CMap_ClassRec fnt_cmap_class_rec = + { + sizeof ( FNT_CMapRec ), + + (FT_CMap_InitFunc) fnt_cmap_init, + (FT_CMap_DoneFunc) NULL, + (FT_CMap_CharIndexFunc)fnt_cmap_char_index, + (FT_CMap_CharNextFunc) fnt_cmap_char_next, + + NULL, NULL, NULL, NULL, NULL + }; + + static FT_CMap_Class const fnt_cmap_class = &fnt_cmap_class_rec; + + + static void + FNT_Face_Done( FT_Face fntface ) /* FNT_Face */ + { + FNT_Face face = (FNT_Face)fntface; + FT_Memory memory; + + + if ( !face ) + return; + + memory = FT_FACE_MEMORY( face ); + + fnt_font_done( face ); + + FT_FREE( fntface->available_sizes ); + fntface->num_fixed_sizes = 0; + } + + + static FT_Error + FNT_Face_Init( FT_Stream stream, + FT_Face fntface, /* FNT_Face */ + FT_Int face_index, + FT_Int num_params, + FT_Parameter* params ) + { + FNT_Face face = (FNT_Face)fntface; + FT_Error error; + FT_Memory memory = FT_FACE_MEMORY( face ); + + FT_UNUSED( num_params ); + FT_UNUSED( params ); + + + FT_TRACE2(( "Windows FNT driver\n" )); + + /* try to load font from a DLL */ + error = fnt_face_get_dll_font( face, face_index ); + if ( !error && face_index < 0 ) + goto Exit; + + if ( error == FNT_Err_Unknown_File_Format ) + { + /* this didn't work; try to load a single FNT font */ + FNT_Font font; + + if ( FT_NEW( face->font ) ) + goto Exit; + + fntface->num_faces = 1; + + font = face->font; + font->offset = 0; + font->fnt_size = stream->size; + + error = fnt_font_load( font, stream ); + + if ( !error ) + { + if ( face_index > 0 ) + error = FNT_Err_Invalid_Argument; + else if ( face_index < 0 ) + goto Exit; + } + } + + if ( error ) + goto Fail; + + /* we now need to fill the root FT_Face fields */ + /* with relevant information */ + { + FT_Face root = FT_FACE( face ); + FNT_Font font = face->font; + FT_PtrDist family_size; + + + root->face_index = face_index; + + root->face_flags = FT_FACE_FLAG_FIXED_SIZES | + FT_FACE_FLAG_HORIZONTAL; + + if ( font->header.avg_width == font->header.max_width ) + root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + + if ( font->header.italic ) + root->style_flags |= FT_STYLE_FLAG_ITALIC; + + if ( font->header.weight >= 800 ) + root->style_flags |= FT_STYLE_FLAG_BOLD; + + /* set up the `fixed_sizes' array */ + if ( FT_NEW_ARRAY( root->available_sizes, 1 ) ) + goto Fail; + + root->num_fixed_sizes = 1; + + { + FT_Bitmap_Size* bsize = root->available_sizes; + FT_UShort x_res, y_res; + + + bsize->width = font->header.avg_width; + bsize->height = (FT_Short)( + font->header.pixel_height + font->header.external_leading ); + bsize->size = font->header.nominal_point_size << 6; + + x_res = font->header.horizontal_resolution; + if ( !x_res ) + x_res = 72; + + y_res = font->header.vertical_resolution; + if ( !y_res ) + y_res = 72; + + bsize->y_ppem = FT_MulDiv( bsize->size, y_res, 72 ); + bsize->y_ppem = FT_PIX_ROUND( bsize->y_ppem ); + + /* + * this reads: + * + * the nominal height is larger than the bbox's height + * + * => nominal_point_size contains incorrect value; + * use pixel_height as the nominal height + */ + if ( bsize->y_ppem > ( font->header.pixel_height << 6 ) ) + { + FT_TRACE2(( "use pixel_height as the nominal height\n" )); + + bsize->y_ppem = font->header.pixel_height << 6; + bsize->size = FT_MulDiv( bsize->y_ppem, 72, y_res ); + } + + bsize->x_ppem = FT_MulDiv( bsize->size, x_res, 72 ); + bsize->x_ppem = FT_PIX_ROUND( bsize->x_ppem ); + } + + { + FT_CharMapRec charmap; + + + charmap.encoding = FT_ENCODING_NONE; + /* initial platform/encoding should indicate unset status? */ + charmap.platform_id = TT_PLATFORM_APPLE_UNICODE; + charmap.encoding_id = TT_APPLE_ID_DEFAULT; + charmap.face = root; + + if ( font->header.charset == FT_WinFNT_ID_MAC ) + { + charmap.encoding = FT_ENCODING_APPLE_ROMAN; + charmap.platform_id = TT_PLATFORM_MACINTOSH; +/* charmap.encoding_id = TT_MAC_ID_ROMAN; */ + } + + error = FT_CMap_New( fnt_cmap_class, + NULL, + &charmap, + NULL ); + if ( error ) + goto Fail; + + /* Select default charmap */ + if ( root->num_charmaps ) + root->charmap = root->charmaps[0]; + } + + /* set up remaining flags */ + + if ( font->header.last_char < font->header.first_char ) + { + FT_TRACE2(( "invalid number of glyphs\n" )); + error = FNT_Err_Invalid_File_Format; + goto Fail; + } + + /* reserve one slot for the .notdef glyph at index 0 */ + root->num_glyphs = font->header.last_char - + font->header.first_char + 1 + 1; + + if ( font->header.face_name_offset >= font->header.file_size ) + { + FT_TRACE2(( "invalid family name offset\n" )); + error = FNT_Err_Invalid_File_Format; + goto Fail; + } + family_size = font->header.file_size - font->header.face_name_offset; + /* Some broken fonts don't delimit the face name with a final */ + /* NULL byte -- the frame is erroneously one byte too small. */ + /* We thus allocate one more byte, setting it explicitly to */ + /* zero. */ + if ( FT_ALLOC( font->family_name, family_size + 1 ) ) + goto Fail; + + FT_MEM_COPY( font->family_name, + font->fnt_frame + font->header.face_name_offset, + family_size ); + + font->family_name[family_size] = '\0'; + + if ( FT_REALLOC( font->family_name, + family_size, + ft_strlen( font->family_name ) + 1 ) ) + goto Fail; + + root->family_name = font->family_name; + root->style_name = (char *)"Regular"; + + if ( root->style_flags & FT_STYLE_FLAG_BOLD ) + { + if ( root->style_flags & FT_STYLE_FLAG_ITALIC ) + root->style_name = (char *)"Bold Italic"; + else + root->style_name = (char *)"Bold"; + } + else if ( root->style_flags & FT_STYLE_FLAG_ITALIC ) + root->style_name = (char *)"Italic"; + } + goto Exit; + + Fail: + FNT_Face_Done( fntface ); + + Exit: + return error; + } + + + static FT_Error + FNT_Size_Select( FT_Size size, + FT_ULong strike_index ) + { + FNT_Face face = (FNT_Face)size->face; + FT_WinFNT_Header header = &face->font->header; + + FT_UNUSED( strike_index ); + + + FT_Select_Metrics( size->face, 0 ); + + size->metrics.ascender = header->ascent * 64; + size->metrics.descender = -( header->pixel_height - + header->ascent ) * 64; + size->metrics.max_advance = header->max_width * 64; + + return FNT_Err_Ok; + } + + + static FT_Error + FNT_Size_Request( FT_Size size, + FT_Size_Request req ) + { + FNT_Face face = (FNT_Face)size->face; + FT_WinFNT_Header header = &face->font->header; + FT_Bitmap_Size* bsize = size->face->available_sizes; + FT_Error error = FNT_Err_Invalid_Pixel_Size; + FT_Long height; + + + height = FT_REQUEST_HEIGHT( req ); + height = ( height + 32 ) >> 6; + + switch ( req->type ) + { + case FT_SIZE_REQUEST_TYPE_NOMINAL: + if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) ) + error = FNT_Err_Ok; + break; + + case FT_SIZE_REQUEST_TYPE_REAL_DIM: + if ( height == header->pixel_height ) + error = FNT_Err_Ok; + break; + + default: + error = FNT_Err_Unimplemented_Feature; + break; + } + + if ( error ) + return error; + else + return FNT_Size_Select( size, 0 ); + } + + + static FT_Error + FNT_Load_Glyph( FT_GlyphSlot slot, + FT_Size size, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FNT_Face face = (FNT_Face)FT_SIZE_FACE( size ); + FNT_Font font; + FT_Error error = FNT_Err_Ok; + FT_Byte* p; + FT_Int len; + FT_Bitmap* bitmap = &slot->bitmap; + FT_ULong offset; + FT_Bool new_format; + + FT_UNUSED( load_flags ); + + + if ( !face ) + { + error = FNT_Err_Invalid_Argument; + goto Exit; + } + + font = face->font; + + if ( !font || + glyph_index >= (FT_UInt)( FT_FACE( face )->num_glyphs ) ) + { + error = FNT_Err_Invalid_Argument; + goto Exit; + } + + if ( glyph_index > 0 ) + glyph_index--; /* revert to real index */ + else + glyph_index = font->header.default_char; /* the .notdef glyph */ + + new_format = FT_BOOL( font->header.version == 0x300 ); + len = new_format ? 6 : 4; + + /* jump to glyph entry */ + p = font->fnt_frame + ( new_format ? 148 : 118 ) + len * glyph_index; + + bitmap->width = FT_NEXT_SHORT_LE( p ); + + if ( new_format ) + offset = FT_NEXT_ULONG_LE( p ); + else + offset = FT_NEXT_USHORT_LE( p ); + + if ( offset >= font->header.file_size ) + { + FT_TRACE2(( "invalid FNT offset\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + /* jump to glyph data */ + p = font->fnt_frame + /* font->header.bits_offset */ + offset; + + /* allocate and build bitmap */ + { + FT_Memory memory = FT_FACE_MEMORY( slot->face ); + FT_Int pitch = ( bitmap->width + 7 ) >> 3; + FT_Byte* column; + FT_Byte* write; + + + bitmap->pitch = pitch; + bitmap->rows = font->header.pixel_height; + bitmap->pixel_mode = FT_PIXEL_MODE_MONO; + + if ( offset + pitch * bitmap->rows >= font->header.file_size ) + { + FT_TRACE2(( "invalid bitmap width\n" )); + error = FNT_Err_Invalid_File_Format; + goto Exit; + } + + /* note: since glyphs are stored in columns and not in rows we */ + /* can't use ft_glyphslot_set_bitmap */ + if ( FT_ALLOC_MULT( bitmap->buffer, pitch, bitmap->rows ) ) + goto Exit; + + column = (FT_Byte*)bitmap->buffer; + + for ( ; pitch > 0; pitch--, column++ ) + { + FT_Byte* limit = p + bitmap->rows; + + + for ( write = column; p < limit; p++, write += bitmap->pitch ) + *write = *p; + } + } + + slot->internal->flags = FT_GLYPH_OWN_BITMAP; + slot->bitmap_left = 0; + slot->bitmap_top = font->header.ascent; + slot->format = FT_GLYPH_FORMAT_BITMAP; + + /* now set up metrics */ + slot->metrics.width = bitmap->width << 6; + slot->metrics.height = bitmap->rows << 6; + slot->metrics.horiAdvance = bitmap->width << 6; + slot->metrics.horiBearingX = 0; + slot->metrics.horiBearingY = slot->bitmap_top << 6; + + ft_synthesize_vertical_metrics( &slot->metrics, + bitmap->rows << 6 ); + + Exit: + return error; + } + + + static FT_Error + winfnt_get_header( FT_Face face, + FT_WinFNT_HeaderRec *aheader ) + { + FNT_Font font = ((FNT_Face)face)->font; + + + *aheader = font->header; + + return 0; + } + + + static const FT_Service_WinFntRec winfnt_service_rec = + { + winfnt_get_header + }; + + /* + * SERVICE LIST + * + */ + + static const FT_ServiceDescRec winfnt_services[] = + { + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_WINFNT }, + { FT_SERVICE_ID_WINFNT, &winfnt_service_rec }, + { NULL, NULL } + }; + + + static FT_Module_Interface + winfnt_get_service( FT_Module module, + const FT_String* service_id ) + { + FT_UNUSED( module ); + + return ft_service_list_lookup( winfnt_services, service_id ); + } + + + + + FT_CALLBACK_TABLE_DEF + const FT_Driver_ClassRec winfnt_driver_class = + { + { + FT_MODULE_FONT_DRIVER | + FT_MODULE_DRIVER_NO_OUTLINES, + sizeof ( FT_DriverRec ), + + "winfonts", + 0x10000L, + 0x20000L, + + 0, + + 0, /* FT_Module_Constructor */ + 0, /* FT_Module_Destructor */ + winfnt_get_service + }, + + sizeof ( FNT_FaceRec ), + sizeof ( FT_SizeRec ), + sizeof ( FT_GlyphSlotRec ), + + FNT_Face_Init, + FNT_Face_Done, + 0, /* FT_Size_InitFunc */ + 0, /* FT_Size_DoneFunc */ + 0, /* FT_Slot_InitFunc */ + 0, /* FT_Slot_DoneFunc */ + +#ifdef FT_CONFIG_OPTION_OLD_INTERNALS + ft_stub_set_char_sizes, + ft_stub_set_pixel_sizes, +#endif + FNT_Load_Glyph, + + 0, /* FT_Face_GetKerningFunc */ + 0, /* FT_Face_AttachFunc */ + 0, /* FT_Face_GetAdvancesFunc */ + + FNT_Size_Request, + FNT_Size_Select + }; + + +/* END */ diff --git a/src/winfonts/winfnt.h b/src/winfonts/winfnt.h new file mode 100644 index 0000000..b7a8073 --- /dev/null +++ b/src/winfonts/winfnt.h @@ -0,0 +1,171 @@ +/***************************************************************************/ +/* */ +/* winfnt.h */ +/* */ +/* FreeType font driver for Windows FNT/FON files */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2007 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* Copyright 2007 Dmitry Timoshkov for Codeweavers */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#ifndef __WINFNT_H__ +#define __WINFNT_H__ + + +#include +#include FT_WINFONTS_H +#include FT_INTERNAL_DRIVER_H + + +FT_BEGIN_HEADER + +#ifdef FT_CONFIG_OPTION_PIC +#error "this module does not support PIC yet" +#endif + + typedef struct WinMZ_HeaderRec_ + { + FT_UShort magic; + /* skipped content */ + FT_UShort lfanew; + + } WinMZ_HeaderRec; + + + typedef struct WinNE_HeaderRec_ + { + FT_UShort magic; + /* skipped content */ + FT_UShort resource_tab_offset; + FT_UShort rname_tab_offset; + + } WinNE_HeaderRec; + + + typedef struct WinPE32_HeaderRec_ + { + FT_ULong magic; + FT_UShort machine; + FT_UShort number_of_sections; + /* skipped content */ + FT_UShort size_of_optional_header; + /* skipped content */ + FT_UShort magic32; + /* skipped content */ + FT_ULong rsrc_virtual_address; + FT_ULong rsrc_size; + /* skipped content */ + + } WinPE32_HeaderRec; + + + typedef struct WinPE32_SectionRec_ + { + FT_Byte name[8]; + /* skipped content */ + FT_ULong virtual_address; + FT_ULong size_of_raw_data; + FT_ULong pointer_to_raw_data; + /* skipped content */ + + } WinPE32_SectionRec; + + + typedef struct WinPE_RsrcDirRec_ + { + FT_ULong characteristics; + FT_ULong time_date_stamp; + FT_UShort major_version; + FT_UShort minor_version; + FT_UShort number_of_named_entries; + FT_UShort number_of_id_entries; + + } WinPE_RsrcDirRec; + + + typedef struct WinPE_RsrcDirEntryRec_ + { + FT_ULong name; + FT_ULong offset; + + } WinPE_RsrcDirEntryRec; + + + typedef struct WinPE_RsrcDataEntryRec_ + { + FT_ULong offset_to_data; + FT_ULong size; + FT_ULong code_page; + FT_ULong reserved; + + } WinPE_RsrcDataEntryRec; + + + typedef struct WinNameInfoRec_ + { + FT_UShort offset; + FT_UShort length; + FT_UShort flags; + FT_UShort id; + FT_UShort handle; + FT_UShort usage; + + } WinNameInfoRec; + + + typedef struct WinResourceInfoRec_ + { + FT_UShort type_id; + FT_UShort count; + + } WinResourceInfoRec; + + +#define WINFNT_MZ_MAGIC 0x5A4D +#define WINFNT_NE_MAGIC 0x454E +#define WINFNT_PE_MAGIC 0x4550 + + + typedef struct FNT_FontRec_ + { + FT_ULong offset; + + FT_WinFNT_HeaderRec header; + + FT_Byte* fnt_frame; + FT_ULong fnt_size; + FT_String* family_name; + + } FNT_FontRec, *FNT_Font; + + + typedef struct FNT_FaceRec_ + { + FT_FaceRec root; + FNT_Font font; + + FT_CharMap charmap_handle; + FT_CharMapRec charmap; /* a single charmap per face */ + + } FNT_FaceRec, *FNT_Face; + + + FT_EXPORT_VAR( const FT_Driver_ClassRec ) winfnt_driver_class; + + +FT_END_HEADER + + +#endif /* __WINFNT_H__ */ + + +/* END */ diff --git a/version.sed b/version.sed new file mode 100644 index 0000000..c281ff5 --- /dev/null +++ b/version.sed @@ -0,0 +1,5 @@ +#! /usr/bin/sed -nf + +s/^#define *FREETYPE_MAJOR *\([^ ][^ ]*\).*$/freetype_major="\1" ;/p +s/^#define *FREETYPE_MINOR *\([^ ][^ ]*\).*$/freetype_minor=".\1" ;/p +s/^#define *FREETYPE_PATCH *\([^ ][^ ]*\).*$/freetype_patch=".\1" ;/p diff --git a/vms_make.com b/vms_make.com new file mode 100644 index 0000000..1aa83e7 --- /dev/null +++ b/vms_make.com @@ -0,0 +1,1286 @@ +$! make Freetype2 under OpenVMS +$! +$! Copyright 2003, 2004, 2006, 2007 by +$! David Turner, Robert Wilhelm, and Werner Lemberg. +$! +$! This file is part of the FreeType project, and may only be used, modified, +$! and distributed under the terms of the FreeType project license, +$! LICENSE.TXT. By continuing to use, modify, or distribute this file you +$! indicate that you have read the license and understand and accept it +$! fully. +$! +$! +$! External libraries (like Freetype, XPM, etc.) are supported via the +$! config file VMSLIB.DAT. Please check the sample file, which is part of this +$! distribution, for the information you need to provide +$! +$! This procedure currently does support the following commandline options +$! in arbitrary order +$! +$! * DEBUG - Compile modules with /noopt/debug and link shareable image +$! with /debug +$! * LOPTS - Options to be passed to the link command +$! * CCOPT - Options to be passed to the C compiler +$! +$! In case of problems with the install you might contact me at +$! zinser@zinser.no-ip.info(preferred) or +$! zinser@sysdev.deutsche-boerse.com (work) +$! +$! Make procedure history for Freetype2 +$! +$!------------------------------------------------------------------------------ +$! Version history +$! 0.01 20040401 First version to receive a number +$! 0.02 20041030 Add error handling, Freetype 2.1.9 +$! +$ on error then goto err_exit +$ true = 1 +$ false = 0 +$ tmpnam = "temp_" + f$getjpi("","pid") +$ tt = tmpnam + ".txt" +$ tc = tmpnam + ".c" +$ th = tmpnam + ".h" +$ its_decc = false +$ its_vaxc = false +$ its_gnuc = false +$! +$! Setup variables holding "config" information +$! +$ Make = "" +$ ccopt = "/name=as_is/float=ieee" +$ lopts = "" +$ dnsrl = "" +$ aconf_in_file = "config.hin" +$ name = "Freetype2" +$ mapfile = name + ".map" +$ optfile = name + ".opt" +$ s_case = false +$ liblist = "" +$! +$ whoami = f$parse(f$environment("Procedure"),,,,"NO_CONCEAL") +$ mydef = F$parse(whoami,,,"DEVICE") +$ mydir = f$parse(whoami,,,"DIRECTORY") - "][" +$ myproc = f$parse(whoami,,,"Name") + f$parse(whoami,,,"type") +$! +$! Check for MMK/MMS +$! +$ If F$Search ("Sys$System:MMS.EXE") .nes. "" Then Make = "MMS" +$ If F$Type (MMK) .eqs. "STRING" Then Make = "MMK" +$! +$! Which command parameters were given +$! +$ gosub check_opts +$! +$! Create option file +$! +$ open/write optf 'optfile' +$! +$! Pull in external libraries +$! +$ create libs.opt +$ open/write libsf libs.opt +$ gosub check_create_vmslib +$! +$! Create objects +$! +$ if libdefs .nes. "" +$ then +$ ccopt = ccopt + "/define=(" + f$extract(0,f$length(libdefs)-1,libdefs) + ")" +$ endif +$! +$ if f$locate("AS_IS",f$edit(ccopt,"UPCASE")) .lt. f$length(ccopt) - + then s_case = true +$ gosub crea_mms +$! +$ 'Make' /macro=(comp_flags="''ccopt'") +$ purge/nolog [...]descrip.mms +$! +$! Add them to options +$! +$FLOOP: +$ file = f$edit(f$search("[...]*.obj"),"UPCASE") +$ if (file .nes. "") +$ then +$ if f$locate("DEMOS",file) .eqs. f$length(file) then write optf file +$ goto floop +$ endif +$! +$ close optf +$! +$! +$! Alpha gets a shareable image +$! +$ If f$getsyi("HW_MODEL") .gt. 1024 +$ Then +$ write sys$output "Creating freetype2shr.exe" +$ call anal_obj_axp 'optfile' _link.opt +$ open/append optf 'optfile' +$ if s_case then WRITE optf "case_sensitive=YES" +$ close optf +$ LINK_/NODEB/SHARE=[.lib]freetype2shr.exe - + 'optfile'/opt,libs.opt/opt,_link.opt/opt +$ endif +$! +$ exit +$! +$ +$ERR_LIB: +$ write sys$output "Error reading config file vmslib.dat" +$ goto err_exit +$FT2_ERR: +$ write sys$output "Could not locate Freetype 2 include files" +$ goto err_exit +$ERR_EXIT: +$ set message/facil/ident/sever/text +$ close/nolog optf +$ close/nolog out +$ close/nolog libdata +$ close/nolog in +$ close/nolog atmp +$ close/nolog xtmp +$ write sys$output "Exiting..." +$ exit 2 +$! +$!------------------------------------------------------------------------------ +$! +$! If MMS/MMK are available dump out the descrip.mms if required +$! +$CREA_MMS: +$ write sys$output "Creating descrip.mms files ..." +$ write sys$output "... Main directory" +$ create descrip.mms +$ open/append out descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 build system -- top-level Makefile for OpenVMS +# + + +# Copyright 2001 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. +$ EOD +$ write out "CFLAGS = ", ccopt +$ copy sys$input: out +$ deck + + +all : + define freetype [--.include.freetype] + define psaux [-.psaux] + define autofit [-.autofit] + define autohint [-.autohint] + define base [-.base] + define cache [-.cache] + define cff [-.cff] + define cid [-.cid] + define pcf [-.pcf] + define psnames [-.psnames] + define raster [-.raster] + define sfnt [-.sfnt] + define smooth [-.smooth] + define truetype [-.truetype] + define type1 [-.type1] + define winfonts [-.winfonts] + if f$search("lib.dir") .eqs. "" then create/directory [.lib] + set default [.builds.vms] + $(MMS)$(MMSQUALIFIERS) +# set default [--.src.autofit] +# $(MMS)$(MMSQUALIFIERS) + set default [--.src.autohint] + $(MMS)$(MMSQUALIFIERS) + set default [-.base] + $(MMS)$(MMSQUALIFIERS) + set default [-.bdf] + $(MMS)$(MMSQUALIFIERS) + set default [-.cache] + $(MMS)$(MMSQUALIFIERS) + set default [-.cff] + $(MMS)$(MMSQUALIFIERS) + set default [-.cid] + $(MMS)$(MMSQUALIFIERS) + set default [-.gzip] + $(MMS)$(MMSQUALIFIERS) + set default [-.lzw] + $(MMS)$(MMSQUALIFIERS) + set default [-.otvalid] + $(MMS)$(MMSQUALIFIERS) + set default [-.pcf] + $(MMS)$(MMSQUALIFIERS) + set default [-.pfr] + $(MMS)$(MMSQUALIFIERS) + set default [-.psaux] + $(MMS)$(MMSQUALIFIERS) + set default [-.pshinter] + $(MMS)$(MMSQUALIFIERS) + set default [-.psnames] + $(MMS)$(MMSQUALIFIERS) + set default [-.raster] + $(MMS)$(MMSQUALIFIERS) + set default [-.sfnt] + $(MMS)$(MMSQUALIFIERS) + set default [-.smooth] + $(MMS)$(MMSQUALIFIERS) + set default [-.truetype] + $(MMS)$(MMSQUALIFIERS) + set default [-.type1] + $(MMS)$(MMSQUALIFIERS) + set default [-.type42] + $(MMS)$(MMSQUALIFIERS) + set default [-.winfonts] + $(MMS)$(MMSQUALIFIERS) + set default [--] + +# EOF +$ eod +$ close out +$ write sys$output "... [.builds.vms] directory" +$ create [.builds.vms]descrip.mms +$ open/append out [.builds.vms]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 system rules for VMS +# + + +# Copyright 2001 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([],[--.include],[--.src.base]) + +OBJS=ftsystem.obj + +all : $(OBJS) + library/create [--.lib]freetype.olb $(OBJS) + +ftsystem.obj : ftsystem.c ftconfig.h + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.autofit] directory" +$ create [.src.autofit]descrip.mms +$ open/append out [.src.autofit]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 auto-fit module compilation rules for VMS +# + + +# Copyright 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.autofit]) + +OBJS=afangles.obj,afhints.obj,aflatin.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.autohint] directory" +$ create [.src.autohint]descrip.mms +$ open/append out [.src.autohint]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 auto-hinter module compilation rules for VMS +# + + +# Copyright 2001, 2002 Catharon Productions Inc. +# +# This file is part of the Catharon Typography Project and shall only +# be used, modified, and distributed under the terms of the Catharon +# Open Source License that should come with this file under the name +# `CatharonLicense.txt'. By continuing to use, modify, or distribute +# this file you indicate that you have read the license and +# understand and accept it fully. +# +# Note that this license is compatible with the FreeType license. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/incl=([--.include],[--.src.autohint]) + +OBJS=autohint.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.base] directory" +$ create [.src.base]descrip.mms +$ open/append out [.src.base]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 base layer compilation rules for VMS +# + + +# Copyright 2001, 2003 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.builds.vms],[--.include],[--.src.base]) + +OBJS=ftbase.obj,ftinit.obj,ftglyph.obj,ftdebug.obj,ftbdf.obj,ftmm.obj,\ + fttype1.obj,ftxf86.obj,ftpfr.obj,ftstroke.obj,ftwinfnt.obj,ftbbox.obj,\ + ftbitmap.obj ftlcdfil.obj ftgasp.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.bdf] directory" +$ create [.src.bdf]descrip.mms +$ open/append out [.src.bdf]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 BDF driver compilation rules for VMS +# + + +# Copyright 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.bdf]) + +OBJS=bdf.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.cache] directory" +$ create [.src.cache]descrip.mms +$ open/append out [.src.cache]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 Cache compilation rules for VMS +# + + +# Copyright 2001, 2002, 2003, 2004 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.cache]) + +OBJS=ftcache.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +ftcache.obj : ftcache.c ftcbasic.c ftccache.c ftccmap.c ftcglyph.c ftcimage.c \ + ftcmanag.c ftcmru.c ftcsbits.c + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.cff] directory" +$ create [.src.cff]descrip.mms +$ open/append out [.src.cff]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 OpenType/CFF driver compilation rules for VMS +# + + +# Copyright 2001, 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.cff]) + +OBJS=cff.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.cid] directory" +$ create [.src.cid]descrip.mms +$ open/append out [.src.cid]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 CID driver compilation rules for VMS +# + + +# Copyright 2001 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.cid]) + +OBJS=type1cid.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.gzip] directory" +$ create [.src.gzip]descrip.mms +$ open/append out [.src.gzip]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 GZip support compilation rules for VMS +# + + +# Copyright 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. +$EOD +$ if libincs .nes. "" then write out "LIBINCS = ", libincs - ",", "," +$ write out "COMP_FLAGS = ", ccopt +$ copy sys$input: out +$ deck + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=($(LIBINCS)[--.include],[--.src.gzip]) + +OBJS=ftgzip.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.lzw] directory" +$ create [.src.lzw]descrip.mms +$ open/append out [.src.lzw]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 LZW support compilation rules for VMS +# + + +# Copyright 2004 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. +$EOD +$ if libincs .nes. "" then write out "LIBINCS = ", libincs - ",", "," +$ write out "COMP_FLAGS = ", ccopt +$ copy sys$input: out +$ deck + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=($(LIBINCS)[--.include],[--.src.lzw]) + +OBJS=ftlzw.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.otlayout] directory" +$ create [.src.otlayout]descrip.mms +$ open/append out [.src.otlayout]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 OT layout compilation rules for VMS +# + + +# Copyright 2004 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.otlayout]) + +OBJS=otlbase.obj,otlcommn.obj,otlgdef.obj,otlgpos.obj,otlgsub.obj,\ + otljstf.obj,otlparse.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.otvalid] directory" +$ create [.src.otvalid]descrip.mms +$ open/append out [.src.otvalid]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 OpenType validation module compilation rules for VMS +# + + +# Copyright 2004 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.otvalid]) + +OBJS=otvalid.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.pcf] directory" +$ create [.src.pcf]descrip.mms +$ open/append out [.src.pcf]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 pcf driver compilation rules for VMS +# + + +# Copyright (C) 2001, 2002 by +# Francesco Zappa Nardelli +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +# THE SOFTWARE. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.pcf]) + +OBJS=pcf.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.pfr] directory" +$ create [.src.pfr]descrip.mms +$ open/append out [.src.pfr]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 PFR driver compilation rules for VMS +# + + +# Copyright 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.pfr]) + +OBJS=pfr.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.psaux] directory" +$ create [.src.psaux]descrip.mms +$ open/append out [.src.psaux]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 PSaux driver compilation rules for VMS +# + + +# Copyright 2001, 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.psaux]) + +OBJS=psaux.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.pshinter] directory" +$ create [.src.pshinter]descrip.mms +$ open/append out [.src.pshinter]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 PSHinter driver compilation rules for OpenVMS +# + + +# Copyright 2001, 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.psnames]) + +OBJS=pshinter.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.psnames] directory" +$ create [.src.psnames]descrip.mms +$ open/append out [.src.psnames]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 PSNames driver compilation rules for VMS +# + + +# Copyright 2001, 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.psnames]) + +OBJS=psnames.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.raster] directory" +$ create [.src.raster]descrip.mms +$ open/append out [.src.raster]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 renderer module compilation rules for VMS +# + + +# Copyright 2001 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.raster]) + +OBJS=raster.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.sfnt] directory" +$ create [.src.sfnt]descrip.mms +$ open/append out [.src.sfnt]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 SFNT driver compilation rules for VMS +# + + +# Copyright 2001, 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.sfnt]) + +OBJS=sfnt.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.smooth] directory" +$ create [.src.smooth]descrip.mms +$ open/append out [.src.smooth]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 smooth renderer module compilation rules for VMS +# + + +# Copyright 2001 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.smooth]) + +OBJS=smooth.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.truetype] directory" +$ create [.src.truetype]descrip.mms +$ open/append out [.src.truetype]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 TrueType driver compilation rules for VMS +# + + +# Copyright 2001, 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.truetype]) + +OBJS=truetype.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.type1] directory" +$ create [.src.type1]descrip.mms +$ open/append out [.src.type1]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 Type1 driver compilation rules for VMS +# + + +# Copyright 1996-2000, 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.type1]) + +OBJS=type1.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +type1.obj : type1.c t1parse.c t1load.c t1objs.c t1driver.c t1gload.c t1afm.c + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.type42] directory" +$ create [.src.type42]descrip.mms +$ open/append out [.src.type42]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 Type 42 driver compilation rules for VMS +# + + +# Copyright 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.type42]) + +OBJS=type42.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ write sys$output "... [.src.winfonts] directory" +$ create [.src.winfonts]descrip.mms +$ open/append out [.src.winfonts]descrip.mms +$ copy sys$input: out +$ deck +# +# FreeType 2 Windows FNT/FON driver compilation rules for VMS +# + + +# Copyright 2001, 2002 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.include],[--.src.winfonts]) + +OBJS=winfnt.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF +$ eod +$ close out +$ return +$!------------------------------------------------------------------------------ +$! +$! Check command line options and set symbols accordingly +$! +$ CHECK_OPTS: +$ i = 1 +$ OPT_LOOP: +$ if i .lt. 9 +$ then +$ cparm = f$edit(p'i',"upcase") +$ if cparm .eqs. "DEBUG" +$ then +$ ccopt = ccopt + "/noopt/deb" +$ lopts = lopts + "/deb" +$ endif +$ if f$locate("CCOPT=",cparm) .lt. f$length(cparm) +$ then +$ start = f$locate("=",cparm) + 1 +$ len = f$length(cparm) - start +$ ccopt = ccopt + f$extract(start,len,cparm) +$ endif +$ if cparm .eqs. "LINK" then linkonly = true +$ if f$locate("LOPTS=",cparm) .lt. f$length(cparm) +$ then +$ start = f$locate("=",cparm) + 1 +$ len = f$length(cparm) - start +$ lopts = lopts + f$extract(start,len,cparm) +$ endif +$ if f$locate("CC=",cparm) .lt. f$length(cparm) +$ then +$ start = f$locate("=",cparm) + 1 +$ len = f$length(cparm) - start +$ cc_com = f$extract(start,len,cparm) + if (cc_com .nes. "DECC") .and. - + (cc_com .nes. "VAXC") .and. - + (cc_com .nes. "GNUC") +$ then +$ write sys$output "Unsupported compiler choice ''cc_com' ignored" +$ write sys$output "Use DECC, VAXC, or GNUC instead" +$ else +$ if cc_com .eqs. "DECC" then its_decc = true +$ if cc_com .eqs. "VAXC" then its_vaxc = true +$ if cc_com .eqs. "GNUC" then its_gnuc = true +$ endif +$ endif +$ if f$locate("MAKE=",cparm) .lt. f$length(cparm) +$ then +$ start = f$locate("=",cparm) + 1 +$ len = f$length(cparm) - start +$ mmks = f$extract(start,len,cparm) +$ if (mmks .eqs. "MMK") .or. (mmks .eqs. "MMS") +$ then +$ make = mmks +$ else +$ write sys$output "Unsupported make choice ''mmks' ignored" +$ write sys$output "Use MMK or MMS instead" +$ endif +$ endif +$ i = i + 1 +$ goto opt_loop +$ endif +$ return +$!------------------------------------------------------------------------------ +$! +$! Take care of driver file with information about external libraries +$! +$! Version history +$! 0.01 20040220 First version to receive a number +$! 0.02 20040229 Echo current procedure name; use general error exit handler +$! Remove xpm hack -> Replaced by more general dnsrl handling +$CHECK_CREATE_VMSLIB: +$! +$ if f$search("VMSLIB.DAT") .eqs. "" +$ then +$ type/out=vmslib.dat sys$input +! +! This is a simple driver file with information used by vms_make.com to +! check if external libraries (like t1lib and freetype) are available on +! the system. +! +! Layout of the file: +! +! - Lines starting with ! are treated as comments +! - Elements in a data line are separated by # signs +! - The elements need to be listed in the following order +! 1.) Name of the Library (only used for informative messages +! from vms_make.com) +! 2.) Location where the object library can be found +! 3.) Location where the include files for the library can be found +! 4.) Include file used to verify library location +! 5.) CPP define to pass to the build to indicate availability of +! the library +! +! Example: The following lines show how definitions +! might look like. They are site specific and the locations of the +! library and include files need almost certainly to be changed. +! +! Location: All of the libaries can be found at the following addresses +! +! ZLIB: http://zinser.no-ip.info/vms/sw/zlib.htmlx +! +ZLIB # sys$library:libz.olb # sys$library: # zlib.h # FT_CONFIG_OPTION_SYSTEM_ZLIB +$ write sys$output "New driver file vmslib.dat created." +$ write sys$output "Please customize libary locations for your site" +$ write sys$output "and afterwards re-execute ''myproc'" +$ goto err_exit +$ endif +$! +$! Init symbols used to hold CPP definitions and include path +$! +$ libdefs = "" +$ libincs = "" +$! +$! Open data file with location of libraries +$! +$ open/read/end=end_lib/err=err_lib libdata VMSLIB.DAT +$LIB_LOOP: +$ read/end=end_lib libdata libline +$ libline = f$edit(libline, "UNCOMMENT,COLLAPSE") +$ if libline .eqs. "" then goto LIB_LOOP ! Comment line +$ libname = f$edit(f$element(0,"#",libline),"UPCASE") +$ write sys$output "Processing ''libname' setup ..." +$ libloc = f$element(1,"#",libline) +$ libsrc = f$element(2,"#",libline) +$ testinc = f$element(3,"#",libline) +$ cppdef = f$element(4,"#",libline) +$ old_cpp = f$locate("=1",cppdef) +$ if old_cpp.lt.f$length(cppdef) then cppdef = f$extract(0,old_cpp,cppdef) +$ if f$search("''libloc'").eqs. "" +$ then +$ write sys$output "Can not find library ''libloc' - Skipping ''libname'" +$ goto LIB_LOOP +$ endif +$ libsrc_elem = 0 +$ libsrc_found = false +$LIBSRC_LOOP: +$ libsrcdir = f$element(libsrc_elem,",",libsrc) +$ if (libsrcdir .eqs. ",") then goto END_LIBSRC +$ if f$search("''libsrcdir'''testinc'") .nes. "" then libsrc_found = true +$ libsrc_elem = libsrc_elem + 1 +$ goto LIBSRC_LOOP +$END_LIBSRC: +$ if .not. libsrc_found +$ then +$ write sys$output "Can not find includes at ''libsrc' - Skipping ''libname'" +$ goto LIB_LOOP +$ endif +$ if (cppdef .nes. "") then libdefs = libdefs + cppdef + "," +$ libincs = libincs + "," + libsrc +$ lqual = "/lib" +$ libtype = f$edit(f$parse(libloc,,,"TYPE"),"UPCASE") +$ if f$locate("EXE",libtype) .lt. f$length(libtype) then lqual = "/share" +$ write optf libloc , lqual +$ if (f$trnlnm("topt") .nes. "") then write topt libloc , lqual +$! +$! Nasty hack to get the freetype includes to work +$! +$ ft2def = false +$ if ((libname .eqs. "FREETYPE") .and. - + (f$locate("FREETYPE2",cppdef) .lt. f$length(cppdef))) +$ then +$ if ((f$search("freetype:freetype.h") .nes. "") .and. - + (f$search("freetype:[internal]ftobjs.h") .nes. "")) +$ then +$ write sys$output "Will use local definition of freetype logical" +$ else +$ ft2elem = 0 +$FT2_LOOP: +$ ft2srcdir = f$element(ft2elem,",",libsrc) +$ if f$search("''ft2srcdir'''testinc'") .nes. "" +$ then +$ if f$search("''ft2srcdir'internal.dir") .nes. "" +$ then +$ ft2dev = f$parse("''ft2srcdir'",,,"device","no_conceal") +$ ft2dir = f$parse("''ft2srcdir'",,,"directory","no_conceal") +$ ft2conc = f$locate("][",ft2dir) +$ ft2len = f$length(ft2dir) +$ if ft2conc .lt. ft2len +$ then +$ ft2dir = f$extract(0,ft2conc,ft2dir) + - + f$extract(ft2conc+2,ft2len-2,ft2dir) +$ endif +$ ft2dir = ft2dir - "]" + ".]" +$ define freetype 'ft2dev''ft2dir','ft2srcdir' +$ ft2def = true +$ else +$ goto ft2_err +$ endif +$ else +$ ft2elem = ft2elem + 1 +$ goto ft2_loop +$ endif +$ endif +$ endif +$ goto LIB_LOOP +$END_LIB: +$ close libdata +$ return +$!------------------------------------------------------------------------------ +$! +$! Analyze Object files for OpenVMS AXP to extract Procedure and Data +$! information to build a symbol vector for a shareable image +$! All the "brains" of this logic was suggested by Hartmut Becker +$! (Hartmut.Becker@compaq.com). All the bugs were introduced by me +$! (zinser@decus.de), so if you do have problem reports please do not +$! bother Hartmut/HP, but get in touch with me +$! +$! Version history +$! 0.01 20040006 Skip over shareable images in option file +$! +$ ANAL_OBJ_AXP: Subroutine +$ V = 'F$Verify(0) +$ SAY := "WRITE_ SYS$OUTPUT" +$ +$ IF F$SEARCH("''P1'") .EQS. "" +$ THEN +$ SAY "ANAL_OBJ_AXP-E-NOSUCHFILE: Error, inputfile ''p1' not available" +$ goto exit_aa +$ ENDIF +$ IF "''P2'" .EQS. "" +$ THEN +$ SAY "ANAL_OBJ_AXP: Error, no output file provided" +$ goto exit_aa +$ ENDIF +$ +$ open/read in 'p1 +$ create a.tmp +$ open/append atmp a.tmp +$ loop: +$ read/end=end_loop in line +$ if f$locate("/SHARE",f$edit(line,"upcase")) .lt. f$length(line) +$ then +$ write sys$output "ANAL_SKP_SHR-i-skipshare, ''line'" +$ goto loop +$ endif +$ if f$locate("/LIB",f$edit(line,"upcase")) .lt. f$length(line) +$ then +$ write libsf line +$ write sys$output "ANAL_SKP_LIB-i-skiplib, ''line'" +$ goto loop +$ endif +$ f= f$search(line) +$ if f .eqs. "" +$ then +$ write sys$output "ANAL_OBJ_AXP-w-nosuchfile, ''line'" +$ goto loop +$ endif +$ def/user sys$output nl: +$ def/user sys$error nl: +$ anal/obj/gsd 'f /out=x.tmp +$ open/read xtmp x.tmp +$ XLOOP: +$ read/end=end_xloop xtmp xline +$ xline = f$edit(xline,"compress") +$ write atmp xline +$ goto xloop +$ END_XLOOP: +$ close xtmp +$ goto loop +$ end_loop: +$ close in +$ close atmp +$ if f$search("a.tmp") .eqs. "" - + then $ exit +$ ! all global definitions +$ search a.tmp "symbol:","EGSY$V_DEF 1","EGSY$V_NORM 1"/out=b.tmp +$ ! all procedures +$ search b.tmp "EGSY$V_NORM 1"/wind=(0,1) /out=c.tmp +$ search c.tmp "symbol:"/out=d.tmp +$ def/user sys$output nl: +$ edito/edt/command=sys$input d.tmp +sub/symbol: "/symbol_vector=(/whole +sub/"/=PROCEDURE)/whole +exit +$ ! all data +$ search b.tmp "EGSY$V_DEF 1"/wind=(0,1) /out=e.tmp +$ search e.tmp "symbol:"/out=f.tmp +$ def/user sys$output nl: +$ edito/edt/command=sys$input f.tmp +sub/symbol: "/symbol_vector=(/whole +sub/"/=DATA)/whole +exit +$ sort/nodupl d.tmp,f.tmp 'p2' +$ delete a.tmp;*,b.tmp;*,c.tmp;*,d.tmp;*,e.tmp;*,f.tmp;* +$ if f$search("x.tmp") .nes. "" - + then $ delete x.tmp;* +$! +$ close libsf +$ EXIT_AA: +$ if V then set verify +$ endsubroutine