2 * $XFree86: xc/lib/fontconfig/src/fcfreetype.c,v 1.6 2002/07/06 23:47:43 keithp Exp $
4 * Copyright © 2001 Keith Packard, member of The XFree86 Project, Inc.
6 * Permission to use, copy, modify, distribute, and sell this software and its
7 * documentation for any purpose is hereby granted without fee, provided that
8 * the above copyright notice appear in all copies and that both that
9 * copyright notice and this permission notice appear in supporting
10 * documentation, and that the name of Keith Packard not be used in
11 * advertising or publicity pertaining to distribution of the software without
12 * specific, written prior permission. Keith Packard makes no
13 * representations about the suitability of this software for any purpose. It
14 * is provided "as is" without express or implied warranty.
16 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
17 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
18 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
19 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
20 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
21 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
22 * PERFORMANCE OF THIS SOFTWARE.
29 #include <freetype/freetype.h>
30 #include <freetype/internal/ftobjs.h>
31 #include <freetype/tttables.h>
34 * Keep Han languages separated by eliminating languages
35 * that the codePageRange bits says aren't supported
41 } FcCodePageRange[] = {
42 { 17, (const FcChar8 *) "ja" },
43 { 18, (const FcChar8 *) "zh-tw" },
44 { 19, (const FcChar8 *) "ko" },
45 { 20, (const FcChar8 *) "zh-cn" },
48 #define NUM_CODE_PAGE_RANGE (sizeof FcCodePageRange / sizeof FcCodePageRange[0])
51 FcFreeTypeIsExclusiveLang (const FcChar8 *lang)
55 for (i = 0; i < NUM_CODE_PAGE_RANGE; i++)
57 if (FcLangCompare (lang, FcCodePageRange[i].lang) != FcLangDifferentLang)
64 FcFreeTypeQuery (const FcChar8 *file,
76 const FcChar8 *family;
78 const FcChar8 *exclusiveLang = 0;
80 if (FT_Init_FreeType (&ftLibrary))
83 if (FT_New_Face (ftLibrary, (char *) file, id, &face))
86 *count = face->num_faces;
88 pat = FcPatternCreate ();
92 if (!FcPatternAddBool (pat, FC_OUTLINE,
93 (face->face_flags & FT_FACE_FLAG_SCALABLE) != 0))
96 if (!FcPatternAddBool (pat, FC_SCALABLE,
97 (face->face_flags & FT_FACE_FLAG_SCALABLE) != 0))
101 slant = FC_SLANT_ROMAN;
102 if (face->style_flags & FT_STYLE_FLAG_ITALIC)
103 slant = FC_SLANT_ITALIC;
105 if (!FcPatternAddInteger (pat, FC_SLANT, slant))
108 weight = FC_WEIGHT_MEDIUM;
109 if (face->style_flags & FT_STYLE_FLAG_BOLD)
110 weight = FC_WEIGHT_BOLD;
112 if (!FcPatternAddInteger (pat, FC_WEIGHT, weight))
115 family = (FcChar8 *) face->family_name;
118 family = (FcChar8 *) strrchr ((char *) file, '/');
124 if (!FcPatternAddString (pat, FC_FAMILY, family))
127 if (face->style_name)
129 if (!FcPatternAddString (pat, FC_STYLE, (FcChar8 *) face->style_name))
133 if (!FcPatternAddString (pat, FC_FILE, file))
136 if (!FcPatternAddInteger (pat, FC_INDEX, id))
139 if (!FcPatternAddString (pat, FC_SOURCE, (FcChar8 *) "FreeType"))
143 if ((face->face_flags & FT_FACE_FLAG_FIXED_WIDTH) != 0)
144 if (!FcPatternAddInteger (pat, FC_SPACING, FC_MONO))
149 * Get the OS/2 table and poke about
151 os2 = (TT_OS2 *) FT_Get_Sfnt_Table (face, ft_sfnt_os2);
152 if (os2 && os2->version >= 0x0001 && os2->version != 0xffff)
154 for (i = 0; i < NUM_CODE_PAGE_RANGE; i++)
158 if (FcCodePageRange[i].bit < 32)
160 bits = os2->ulCodePageRange1;
161 bit = FcCodePageRange[i].bit;
165 bits = os2->ulCodePageRange2;
166 bit = FcCodePageRange[i].bit - 32;
168 if (bits & (1 << bit))
171 * If the font advertises support for multiple
172 * "exclusive" languages, then include support
173 * for any language found to have coverage
180 exclusiveLang = FcCodePageRange[i].lang;
186 * Compute the unicode coverage for the font
188 cs = FcFreeTypeCharSet (face, blanks);
193 * Skip over PCF fonts that have no encoded characters; they're
194 * usually just Unicode fonts transcoded to some legacy encoding
196 if (FcCharSetCount (cs) == 0)
198 if (!strcmp(FT_MODULE_CLASS(&face->driver->root)->module_name, "pcf"))
202 if (!FcPatternAddCharSet (pat, FC_CHARSET, cs))
205 if (!FcFreeTypeSetLang (pat, cs, exclusiveLang))
209 * Drop our reference to the charset
211 FcCharSetDestroy (cs);
213 if (!(face->face_flags & FT_FACE_FLAG_SCALABLE))
215 for (i = 0; i < face->num_fixed_sizes; i++)
216 if (!FcPatternAddDouble (pat, FC_PIXEL_SIZE,
217 (double) face->available_sizes[i].height))
219 if (!FcPatternAddBool (pat, FC_ANTIALIAS, FcFalse))
224 FT_Done_FreeType (ftLibrary);
228 FcCharSetDestroy (cs);
230 FcPatternDestroy (pat);
234 FT_Done_FreeType (ftLibrary);