1 /***************************************************************************/
5 /* High-level SFNT driver interface (body). */
7 /* Copyright 1996-2007, 2009-2014 by */
8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
10 /* This file is part of the FreeType project, and may only be used, */
11 /* modified, and distributed under the terms of the FreeType project */
12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
13 /* this file you indicate that you have read the license and */
14 /* understand and accept it fully. */
16 /***************************************************************************/
20 #include FT_INTERNAL_DEBUG_H
21 #include FT_INTERNAL_SFNT_H
22 #include FT_INTERNAL_OBJECTS_H
31 #ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
35 #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
39 #ifdef TT_CONFIG_OPTION_BDF
41 #include FT_SERVICE_BDF_H
48 #include FT_SERVICE_GLYPH_DICT_H
49 #include FT_SERVICE_POSTSCRIPT_NAME_H
50 #include FT_SERVICE_SFNT_H
51 #include FT_SERVICE_TT_CMAP_H
54 /*************************************************************************/
56 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
57 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
58 /* messages during execution. */
61 #define FT_COMPONENT trace_sfdriver
70 get_sfnt_table( TT_Face face,
79 table = &face->header;
83 table = &face->horizontal;
87 table = face->vertical_info ? &face->vertical : NULL;
91 table = face->os2.version == 0xFFFFU ? NULL : &face->os2;
95 table = &face->postscript;
99 table = &face->max_profile;
103 table = face->pclt.Version ? &face->pclt : NULL;
115 sfnt_table_info( TT_Face face,
121 if ( !offset || !length )
122 return FT_THROW( Invalid_Argument );
125 *length = face->num_tables;
128 if ( idx >= face->num_tables )
129 return FT_THROW( Table_Missing );
131 *tag = face->dir_tables[idx].Tag;
132 *offset = face->dir_tables[idx].Offset;
133 *length = face->dir_tables[idx].Length;
140 FT_DEFINE_SERVICE_SFNT_TABLEREC(
141 sfnt_service_sfnt_table,
142 (FT_SFNT_TableLoadFunc)tt_face_load_any,
143 (FT_SFNT_TableGetFunc) get_sfnt_table,
144 (FT_SFNT_TableInfoFunc)sfnt_table_info )
147 #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
155 sfnt_get_glyph_name( TT_Face face,
164 error = tt_face_get_ps_name( face, glyph_index, &gname );
166 FT_STRCPYN( buffer, gname, buffer_max );
173 sfnt_get_name_index( TT_Face face,
174 FT_String* glyph_name )
176 FT_Face root = &face->root;
178 FT_UInt i, max_gid = FT_UINT_MAX;
181 if ( root->num_glyphs < 0 )
183 else if ( (FT_ULong)root->num_glyphs < FT_UINT_MAX )
184 max_gid = (FT_UInt)root->num_glyphs;
186 FT_TRACE0(( "Ignore glyph names for invalid GID 0x%08x - 0x%08x\n",
187 FT_UINT_MAX, root->num_glyphs ));
189 for ( i = 0; i < max_gid; i++ )
192 FT_Error error = tt_face_get_ps_name( face, i, &gname );
198 if ( !ft_strcmp( glyph_name, gname ) )
206 FT_DEFINE_SERVICE_GLYPHDICTREC(
207 sfnt_service_glyph_dict,
208 (FT_GlyphDict_GetNameFunc) sfnt_get_glyph_name,
209 (FT_GlyphDict_NameIndexFunc)sfnt_get_name_index )
212 #endif /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES */
216 * POSTSCRIPT NAME SERVICE
221 sfnt_get_ps_name( TT_Face face )
223 FT_Int n, found_win, found_apple;
224 const char* result = NULL;
227 /* shouldn't happen, but just in case to avoid memory leaks */
228 if ( face->postscript_name )
229 return face->postscript_name;
231 /* scan the name table to see whether we have a Postscript name here, */
232 /* either in Macintosh or Windows platform encodings */
236 for ( n = 0; n < face->num_names; n++ )
238 TT_NameEntryRec* name = face->name_table.names + n;
241 if ( name->nameID == 6 && name->stringLength > 0 )
243 if ( name->platformID == 3 &&
244 name->encodingID == 1 &&
245 name->languageID == 0x409 )
248 if ( name->platformID == 1 &&
249 name->encodingID == 0 &&
250 name->languageID == 0 )
255 if ( found_win != -1 )
257 FT_Memory memory = face->root.memory;
258 TT_NameEntryRec* name = face->name_table.names + found_win;
259 FT_UInt len = name->stringLength / 2;
260 FT_Error error = FT_Err_Ok;
265 if ( !FT_ALLOC( result, name->stringLength + 1 ) )
267 FT_Stream stream = face->name_table.stream;
268 FT_String* r = (FT_String*)result;
272 if ( FT_STREAM_SEEK( name->stringOffset ) ||
273 FT_FRAME_ENTER( name->stringLength ) )
276 name->stringLength = 0;
277 name->stringOffset = 0;
278 FT_FREE( name->string );
283 p = (FT_Byte*)stream->cursor;
285 for ( ; len > 0; len--, p += 2 )
287 if ( p[0] == 0 && p[1] >= 32 && p[1] < 128 )
297 if ( found_apple != -1 )
299 FT_Memory memory = face->root.memory;
300 TT_NameEntryRec* name = face->name_table.names + found_apple;
301 FT_UInt len = name->stringLength;
302 FT_Error error = FT_Err_Ok;
307 if ( !FT_ALLOC( result, len + 1 ) )
309 FT_Stream stream = face->name_table.stream;
312 if ( FT_STREAM_SEEK( name->stringOffset ) ||
313 FT_STREAM_READ( result, len ) )
315 name->stringOffset = 0;
316 name->stringLength = 0;
317 FT_FREE( name->string );
321 ((char*)result)[len] = '\0';
326 face->postscript_name = result;
331 FT_DEFINE_SERVICE_PSFONTNAMEREC(
332 sfnt_service_ps_name,
333 (FT_PsName_GetFunc)sfnt_get_ps_name )
339 FT_DEFINE_SERVICE_TTCMAPSREC(
340 tt_service_get_cmap_info,
341 (TT_CMap_Info_GetFunc)tt_get_cmap_info )
344 #ifdef TT_CONFIG_OPTION_BDF
347 sfnt_get_charset_id( TT_Face face,
348 const char* *acharset_encoding,
349 const char* *acharset_registry )
351 BDF_PropertyRec encoding, registry;
355 /* XXX: I don't know whether this is correct, since
356 * tt_face_find_bdf_prop only returns something correct if we have
357 * previously selected a size that is listed in the BDF table.
358 * Should we change the BDF table format to include single offsets
359 * for `CHARSET_REGISTRY' and `CHARSET_ENCODING'?
361 error = tt_face_find_bdf_prop( face, "CHARSET_REGISTRY", ®istry );
364 error = tt_face_find_bdf_prop( face, "CHARSET_ENCODING", &encoding );
367 if ( registry.type == BDF_PROPERTY_TYPE_ATOM &&
368 encoding.type == BDF_PROPERTY_TYPE_ATOM )
370 *acharset_encoding = encoding.u.atom;
371 *acharset_registry = registry.u.atom;
374 error = FT_THROW( Invalid_Argument );
382 FT_DEFINE_SERVICE_BDFRec(
384 (FT_BDF_GetCharsetIdFunc)sfnt_get_charset_id,
385 (FT_BDF_GetPropertyFunc) tt_face_find_bdf_prop )
388 #endif /* TT_CONFIG_OPTION_BDF */
395 #if defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES && defined TT_CONFIG_OPTION_BDF
396 FT_DEFINE_SERVICEDESCREC5(
398 FT_SERVICE_ID_SFNT_TABLE, &SFNT_SERVICE_SFNT_TABLE_GET,
399 FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &SFNT_SERVICE_PS_NAME_GET,
400 FT_SERVICE_ID_GLYPH_DICT, &SFNT_SERVICE_GLYPH_DICT_GET,
401 FT_SERVICE_ID_BDF, &SFNT_SERVICE_BDF_GET,
402 FT_SERVICE_ID_TT_CMAP, &TT_SERVICE_CMAP_INFO_GET )
403 #elif defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES
404 FT_DEFINE_SERVICEDESCREC4(
406 FT_SERVICE_ID_SFNT_TABLE, &SFNT_SERVICE_SFNT_TABLE_GET,
407 FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &SFNT_SERVICE_PS_NAME_GET,
408 FT_SERVICE_ID_GLYPH_DICT, &SFNT_SERVICE_GLYPH_DICT_GET,
409 FT_SERVICE_ID_TT_CMAP, &TT_SERVICE_CMAP_INFO_GET )
410 #elif defined TT_CONFIG_OPTION_BDF
411 FT_DEFINE_SERVICEDESCREC4(
413 FT_SERVICE_ID_SFNT_TABLE, &SFNT_SERVICE_SFNT_TABLE_GET,
414 FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &SFNT_SERVICE_PS_NAME_GET,
415 FT_SERVICE_ID_BDF, &SFNT_SERVICE_BDF_GET,
416 FT_SERVICE_ID_TT_CMAP, &TT_SERVICE_CMAP_INFO_GET )
418 FT_DEFINE_SERVICEDESCREC3(
420 FT_SERVICE_ID_SFNT_TABLE, &SFNT_SERVICE_SFNT_TABLE_GET,
421 FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &SFNT_SERVICE_PS_NAME_GET,
422 FT_SERVICE_ID_TT_CMAP, &TT_SERVICE_CMAP_INFO_GET )
426 FT_CALLBACK_DEF( FT_Module_Interface )
427 sfnt_get_interface( FT_Module module,
428 const char* module_interface )
430 /* SFNT_SERVICES_GET dereferences `library' in PIC mode */
431 #ifdef FT_CONFIG_OPTION_PIC
437 library = module->library;
444 return ft_service_list_lookup( SFNT_SERVICES_GET, module_interface );
448 #ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
449 #define PUT_EMBEDDED_BITMAPS( a ) a
451 #define PUT_EMBEDDED_BITMAPS( a ) NULL
454 #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
455 #define PUT_PS_NAMES( a ) a
457 #define PUT_PS_NAMES( a ) NULL
460 FT_DEFINE_SFNT_INTERFACE(
486 PUT_EMBEDDED_BITMAPS( tt_face_load_bhed ),
488 PUT_EMBEDDED_BITMAPS( tt_face_load_sbit_image ),
491 PUT_PS_NAMES( tt_face_get_ps_name ),
492 PUT_PS_NAMES( tt_face_free_ps_names ),
494 /* since version 2.1.8 */
497 /* since version 2.2 */
498 tt_face_load_font_dir,
501 /* see `ttsbit.h' and `sfnt.h' */
502 PUT_EMBEDDED_BITMAPS( tt_face_load_sbit ),
503 PUT_EMBEDDED_BITMAPS( tt_face_free_sbit ),
505 PUT_EMBEDDED_BITMAPS( tt_face_set_sbit_strike ),
506 PUT_EMBEDDED_BITMAPS( tt_face_load_strike_metrics ),
515 0, /* not a font driver or renderer */
516 sizeof ( FT_ModuleRec ),
518 "sfnt", /* driver name */
519 0x10000L, /* driver version 1.0 */
520 0x20000L, /* driver requires FreeType 2.0 or higher */
522 (const void*)&SFNT_INTERFACE_GET, /* module specific interface */
524 (FT_Module_Constructor)0,
525 (FT_Module_Destructor) 0,
526 (FT_Module_Requester) sfnt_get_interface )