Commit | Line | Data |
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c2f5bfd6 | 1 | /* ftfont.c -- FreeType font driver. |
73b0cd50 | 2 | Copyright (C) 2006-2011 Free Software Foundation, Inc. |
5df4f04c | 3 | Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 |
c2f5bfd6 KH |
4 | National Institute of Advanced Industrial Science and Technology (AIST) |
5 | Registration Number H13PRO009 | |
6 | ||
7 | This file is part of GNU Emacs. | |
8 | ||
9ec0b715 | 9 | GNU Emacs is free software: you can redistribute it and/or modify |
c2f5bfd6 | 10 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
11 | the Free Software Foundation, either version 3 of the License, or |
12 | (at your option) any later version. | |
c2f5bfd6 KH |
13 | |
14 | GNU Emacs is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 20 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
c2f5bfd6 KH |
21 | |
22 | #include <config.h> | |
23 | #include <stdio.h> | |
d7306fe6 | 24 | #include <setjmp.h> |
c2f5bfd6 | 25 | |
c2f5bfd6 KH |
26 | #include <fontconfig/fontconfig.h> |
27 | #include <fontconfig/fcfreetype.h> | |
28 | ||
29 | #include "lisp.h" | |
30 | #include "dispextern.h" | |
31 | #include "frame.h" | |
32 | #include "blockinput.h" | |
33 | #include "character.h" | |
34 | #include "charset.h" | |
35 | #include "coding.h" | |
89a95b7c | 36 | #include "composite.h" |
c2f5bfd6 KH |
37 | #include "fontset.h" |
38 | #include "font.h" | |
de023c40 | 39 | #include "ftfont.h" |
c2f5bfd6 | 40 | |
c2801c99 | 41 | /* Symbolic type of this font-driver. */ |
955cbe7b | 42 | static Lisp_Object Qfreetype; |
c2f5bfd6 | 43 | |
706b6995 KH |
44 | /* Fontconfig's generic families and their aliases. */ |
45 | static Lisp_Object Qmonospace, Qsans_serif, Qserif, Qmono, Qsans, Qsans__serif; | |
46 | ||
2a46904e | 47 | /* Flag to tell if FcInit is already called or not. */ |
c2f5bfd6 | 48 | static int fc_initialized; |
c2801c99 KH |
49 | |
50 | /* Handle to a FreeType library instance. */ | |
c2f5bfd6 KH |
51 | static FT_Library ft_library; |
52 | ||
c2801c99 | 53 | /* Cache for FreeType fonts. */ |
c2f5bfd6 KH |
54 | static Lisp_Object freetype_font_cache; |
55 | ||
e302a291 | 56 | /* Cache for FT_Face and FcCharSet. */ |
21988a08 | 57 | static Lisp_Object ft_face_cache; |
c2f5bfd6 KH |
58 | |
59 | /* The actual structure for FreeType font that can be casted to struct | |
60 | font. */ | |
61 | ||
62 | struct ftfont_info | |
63 | { | |
64 | struct font font; | |
de023c40 | 65 | #ifdef HAVE_LIBOTF |
7179ce7b | 66 | /* The following four members must be here in this order to be |
e302a291 | 67 | compatible with struct xftfont_info (in xftfont.c). */ |
de023c40 KH |
68 | int maybe_otf; /* Flag to tell if this may be OTF or not. */ |
69 | OTF *otf; | |
70 | #endif /* HAVE_LIBOTF */ | |
e302a291 KH |
71 | FT_Size ft_size; |
72 | int index; | |
d0db2ec8 | 73 | FT_Matrix matrix; |
c2f5bfd6 KH |
74 | }; |
75 | ||
d7782105 KH |
76 | enum ftfont_cache_for |
77 | { | |
78 | FTFONT_CACHE_FOR_FACE, | |
79 | FTFONT_CACHE_FOR_CHARSET, | |
80 | FTFONT_CACHE_FOR_ENTITY | |
81 | }; | |
82 | ||
f57e2426 | 83 | static Lisp_Object ftfont_pattern_entity (FcPattern *, Lisp_Object); |
21988a08 | 84 | |
f57e2426 J |
85 | static Lisp_Object ftfont_resolve_generic_family (Lisp_Object, |
86 | FcPattern *); | |
87 | static Lisp_Object ftfont_lookup_cache (Lisp_Object, | |
88 | enum ftfont_cache_for); | |
e302a291 | 89 | |
f57e2426 | 90 | static void ftfont_filter_properties (Lisp_Object font, Lisp_Object alist); |
9fa82824 | 91 | |
f57e2426 | 92 | Lisp_Object ftfont_font_format (FcPattern *, Lisp_Object); |
706b6995 KH |
93 | |
94 | #define SYMBOL_FcChar8(SYM) (FcChar8 *) SDATA (SYMBOL_NAME (SYM)) | |
95 | ||
21988a08 | 96 | static struct |
c2f5bfd6 | 97 | { |
e302a291 | 98 | /* registry name */ |
675e2c69 | 99 | const char *name; |
21988a08 KH |
100 | /* characters to distinguish the charset from the others */ |
101 | int uniquifier[6]; | |
7d7ad10e | 102 | /* additional constraint by language */ |
675e2c69 | 103 | const char *lang; |
21988a08 KH |
104 | /* set on demand */ |
105 | FcCharSet *fc_charset; | |
106 | } fc_charset_table[] = | |
d7782105 | 107 | { { "iso8859-1", { 0x00A0, 0x00A1, 0x00B4, 0x00BC, 0x00D0 } }, |
e302a291 KH |
108 | { "iso8859-2", { 0x00A0, 0x010E }}, |
109 | { "iso8859-3", { 0x00A0, 0x0108 }}, | |
110 | { "iso8859-4", { 0x00A0, 0x00AF, 0x0128, 0x0156, 0x02C7 }}, | |
111 | { "iso8859-5", { 0x00A0, 0x0401 }}, | |
112 | { "iso8859-6", { 0x00A0, 0x060C }}, | |
113 | { "iso8859-7", { 0x00A0, 0x0384 }}, | |
114 | { "iso8859-8", { 0x00A0, 0x05D0 }}, | |
115 | { "iso8859-9", { 0x00A0, 0x00A1, 0x00BC, 0x011E }}, | |
116 | { "iso8859-10", { 0x00A0, 0x00D0, 0x0128, 0x2015 }}, | |
117 | { "iso8859-11", { 0x00A0, 0x0E01 }}, | |
118 | { "iso8859-13", { 0x00A0, 0x201C }}, | |
119 | { "iso8859-14", { 0x00A0, 0x0174 }}, | |
120 | { "iso8859-15", { 0x00A0, 0x00A1, 0x00D0, 0x0152 }}, | |
121 | { "iso8859-16", { 0x00A0, 0x0218}}, | |
122 | { "gb2312.1980-0", { 0x4E13 }, "zh-cn"}, | |
123 | { "big5-0", { 0xF6B1 }, "zh-tw" }, | |
124 | { "jisx0208.1983-0", { 0x4E55 }, "ja"}, | |
125 | { "ksc5601.1985-0", { 0xAC00 }, "ko"}, | |
126 | { "cns11643.1992-1", { 0xFE32 }, "zh-tw"}, | |
127 | { "cns11643.1992-2", { 0x4E33, 0x7934 }}, | |
128 | { "cns11643.1992-3", { 0x201A9 }}, | |
129 | { "cns11643.1992-4", { 0x20057 }}, | |
130 | { "cns11643.1992-5", { 0x20000 }}, | |
131 | { "cns11643.1992-6", { 0x20003 }}, | |
132 | { "cns11643.1992-7", { 0x20055 }}, | |
133 | { "gbk-0", { 0x4E06 }, "zh-cn"}, | |
134 | { "jisx0212.1990-0", { 0x4E44 }}, | |
135 | { "jisx0213.2000-1", { 0xFA10 }, "ja"}, | |
136 | { "jisx0213.2000-2", { 0xFA49 }}, | |
137 | { "jisx0213.2004-1", { 0x20B9F }}, | |
138 | { "viscii1.1-1", { 0x1EA0, 0x1EAE, 0x1ED2 }, "vi"}, | |
139 | { "tis620.2529-1", { 0x0E01 }, "th"}, | |
7d7ad10e KH |
140 | { "windows-1251", { 0x0401, 0x0490 }, "ru"}, |
141 | { "koi8-r", { 0x0401, 0x2219 }, "ru"}, | |
e302a291 | 142 | { "mulelao-1", { 0x0E81 }, "lo"}, |
7b649478 | 143 | { "unicode-sip", { 0x20000 }}, |
21988a08 KH |
144 | { NULL } |
145 | }; | |
c2f5bfd6 | 146 | |
99c4d65d KH |
147 | /* Dirty hack for handing ADSTYLE property. |
148 | ||
149 | Fontconfig (actually the underlying FreeType) gives such ADSTYLE | |
150 | font property of PCF/BDF fonts in FC_STYLE. And, "Bold", | |
151 | "Oblique", "Italic", or any non-normal SWIDTH property names | |
152 | (e.g. SemiCondensed) are appended. In addition, if there's no | |
153 | ADSTYLE property nor non-normal WEIGHT/SLANT/SWIDTH properties, | |
154 | "Regular" is used for FC_STYLE (see the function | |
155 | pcf_interpret_style in src/pcf/pcfread.c of FreeType). | |
156 | ||
157 | Unfortunately this behavior is not documented, so the following | |
158 | code may fail if FreeType changes the behavior in the future. */ | |
159 | ||
160 | static Lisp_Object | |
161 | get_adstyle_property (FcPattern *p) | |
162 | { | |
dae0cd48 PE |
163 | FcChar8 *fcstr; |
164 | char *str, *end; | |
99c4d65d KH |
165 | Lisp_Object adstyle; |
166 | ||
dae0cd48 | 167 | if (FcPatternGetString (p, FC_STYLE, 0, &fcstr) != FcResultMatch) |
99c4d65d | 168 | return Qnil; |
dae0cd48 | 169 | str = (char *) fcstr; |
99c4d65d KH |
170 | for (end = str; *end && *end != ' '; end++); |
171 | if (*end) | |
172 | { | |
49eaafba PE |
173 | char *newstr = alloca (end - str + 1); |
174 | memcpy (newstr, str, end - str); | |
175 | newstr[end - str] = '\0'; | |
176 | end = newstr + (end - str); | |
177 | str = newstr; | |
99c4d65d KH |
178 | } |
179 | if (xstrcasecmp (str, "Regular") == 0 | |
180 | || xstrcasecmp (str, "Bold") == 0 | |
181 | || xstrcasecmp (str, "Oblique") == 0 | |
182 | || xstrcasecmp (str, "Italic") == 0) | |
183 | return Qnil; | |
42d4a64f | 184 | adstyle = font_intern_prop (str, end - str, 1); |
99c4d65d KH |
185 | if (font_style_to_value (FONT_WIDTH_INDEX, adstyle, 0) >= 0) |
186 | return Qnil; | |
187 | return adstyle; | |
188 | } | |
189 | ||
706b6995 | 190 | static Lisp_Object |
971de7fb | 191 | ftfont_pattern_entity (FcPattern *p, Lisp_Object extra) |
c2801c99 | 192 | { |
d7782105 | 193 | Lisp_Object key, cache, entity; |
dae0cd48 PE |
194 | FcChar8 *str; |
195 | char *file; | |
49eaafba | 196 | int idx; |
c2801c99 KH |
197 | int numeric; |
198 | double dbl; | |
42984a74 | 199 | FcBool b; |
c2801c99 | 200 | |
dae0cd48 | 201 | if (FcPatternGetString (p, FC_FILE, 0, &str) != FcResultMatch) |
c2801c99 | 202 | return Qnil; |
49eaafba | 203 | if (FcPatternGetInteger (p, FC_INDEX, 0, &idx) != FcResultMatch) |
e302a291 | 204 | return Qnil; |
c2801c99 | 205 | |
dae0cd48 PE |
206 | file = (char *) str; |
207 | key = Fcons (make_unibyte_string (file, strlen (file)), make_number (idx)); | |
d7782105 KH |
208 | cache = ftfont_lookup_cache (key, FTFONT_CACHE_FOR_ENTITY); |
209 | entity = XCAR (cache); | |
210 | if (! NILP (entity)) | |
b50504f5 KH |
211 | { |
212 | Lisp_Object val = font_make_entity (); | |
213 | int i; | |
214 | ||
215 | for (i = 0; i < FONT_OBJLIST_INDEX; i++) | |
216 | ASET (val, i, AREF (entity, i)); | |
217 | return val; | |
218 | } | |
42984a74 | 219 | entity = font_make_entity (); |
d7782105 | 220 | XSETCAR (cache, entity); |
c2801c99 KH |
221 | |
222 | ASET (entity, FONT_TYPE_INDEX, Qfreetype); | |
e302a291 | 223 | ASET (entity, FONT_REGISTRY_INDEX, Qiso10646_1); |
c2801c99 | 224 | |
dae0cd48 PE |
225 | if (FcPatternGetString (p, FC_FOUNDRY, 0, &str) == FcResultMatch) |
226 | { | |
227 | char *s = (char *) str; | |
228 | ASET (entity, FONT_FOUNDRY_INDEX, font_intern_prop (s, strlen (s), 1)); | |
229 | } | |
230 | if (FcPatternGetString (p, FC_FAMILY, 0, &str) == FcResultMatch) | |
231 | { | |
232 | char *s = (char *) str; | |
233 | ASET (entity, FONT_FAMILY_INDEX, font_intern_prop (s, strlen (s), 1)); | |
234 | } | |
c2801c99 | 235 | if (FcPatternGetInteger (p, FC_WEIGHT, 0, &numeric) == FcResultMatch) |
f63d54dc | 236 | { |
42984a74 KH |
237 | if (numeric >= FC_WEIGHT_REGULAR && numeric < FC_WEIGHT_MEDIUM) |
238 | numeric = FC_WEIGHT_MEDIUM; | |
239 | FONT_SET_STYLE (entity, FONT_WEIGHT_INDEX, make_number (numeric)); | |
f63d54dc | 240 | } |
c2801c99 | 241 | if (FcPatternGetInteger (p, FC_SLANT, 0, &numeric) == FcResultMatch) |
42984a74 KH |
242 | { |
243 | numeric += 100; | |
244 | FONT_SET_STYLE (entity, FONT_SLANT_INDEX, make_number (numeric)); | |
245 | } | |
c2801c99 | 246 | if (FcPatternGetInteger (p, FC_WIDTH, 0, &numeric) == FcResultMatch) |
42984a74 KH |
247 | { |
248 | FONT_SET_STYLE (entity, FONT_WIDTH_INDEX, make_number (numeric)); | |
249 | } | |
c2801c99 | 250 | if (FcPatternGetDouble (p, FC_PIXEL_SIZE, 0, &dbl) == FcResultMatch) |
99c4d65d | 251 | { |
99c4d65d | 252 | ASET (entity, FONT_SIZE_INDEX, make_number (dbl)); |
99c4d65d | 253 | } |
c2801c99 KH |
254 | else |
255 | ASET (entity, FONT_SIZE_INDEX, make_number (0)); | |
42984a74 KH |
256 | if (FcPatternGetInteger (p, FC_SPACING, 0, &numeric) == FcResultMatch) |
257 | ASET (entity, FONT_SPACING_INDEX, make_number (numeric)); | |
258 | if (FcPatternGetDouble (p, FC_DPI, 0, &dbl) == FcResultMatch) | |
259 | { | |
260 | int dpi = dbl; | |
261 | ASET (entity, FONT_DPI_INDEX, make_number (dpi)); | |
262 | } | |
263 | if (FcPatternGetBool (p, FC_SCALABLE, 0, &b) == FcResultMatch | |
264 | && b == FcTrue) | |
d7782105 KH |
265 | { |
266 | ASET (entity, FONT_SIZE_INDEX, make_number (0)); | |
267 | ASET (entity, FONT_AVGWIDTH_INDEX, make_number (0)); | |
268 | } | |
269 | else | |
270 | { | |
271 | /* As this font is not scalable, parhaps this is a BDF or PCF | |
9fa82824 | 272 | font. */ |
d7782105 KH |
273 | FT_Face ft_face; |
274 | ||
275 | ASET (entity, FONT_ADSTYLE_INDEX, get_adstyle_property (p)); | |
276 | if ((ft_library || FT_Init_FreeType (&ft_library) == 0) | |
49eaafba | 277 | && FT_New_Face (ft_library, file, idx, &ft_face) == 0) |
d7782105 KH |
278 | { |
279 | BDF_PropertyRec rec; | |
280 | ||
281 | if (FT_Get_BDF_Property (ft_face, "AVERAGE_WIDTH", &rec) == 0 | |
282 | && rec.type == BDF_PROPERTY_TYPE_INTEGER) | |
283 | ASET (entity, FONT_AVGWIDTH_INDEX, make_number (rec.u.integer)); | |
284 | FT_Done_Face (ft_face); | |
285 | } | |
286 | } | |
c2801c99 | 287 | |
4ffe34a4 | 288 | ASET (entity, FONT_EXTRA_INDEX, Fcopy_sequence (extra)); |
d7782105 | 289 | font_put_extra (entity, QCfont_entity, key); |
c2801c99 KH |
290 | return entity; |
291 | } | |
292 | ||
42984a74 | 293 | |
706b6995 KH |
294 | static Lisp_Object ftfont_generic_family_list; |
295 | ||
296 | static Lisp_Object | |
971de7fb | 297 | ftfont_resolve_generic_family (Lisp_Object family, FcPattern *pattern) |
706b6995 | 298 | { |
318548be | 299 | Lisp_Object slot; |
7d7ad10e | 300 | FcPattern *match; |
318548be | 301 | FcResult result; |
89a95b7c | 302 | FcLangSet *langset; |
706b6995 | 303 | |
318548be | 304 | family = Fintern (Fdowncase (SYMBOL_NAME (family)), Qnil); |
706b6995 KH |
305 | if (EQ (family, Qmono)) |
306 | family = Qmonospace; | |
307 | else if (EQ (family, Qsans) || EQ (family, Qsans__serif)) | |
308 | family = Qsans_serif; | |
309 | slot = assq_no_quit (family, ftfont_generic_family_list); | |
310 | if (! CONSP (slot)) | |
42984a74 | 311 | return Qnil; |
318548be KH |
312 | if (! EQ (XCDR (slot), Qt)) |
313 | return XCDR (slot); | |
7d7ad10e | 314 | pattern = FcPatternDuplicate (pattern); |
42984a74 KH |
315 | if (! pattern) |
316 | goto err; | |
bb658864 | 317 | FcPatternDel (pattern, FC_FOUNDRY); |
7d7ad10e KH |
318 | FcPatternDel (pattern, FC_FAMILY); |
319 | FcPatternAddString (pattern, FC_FAMILY, SYMBOL_FcChar8 (family)); | |
89a95b7c KH |
320 | if (FcPatternGetLangSet (pattern, FC_LANG, 0, &langset) != FcResultMatch) |
321 | { | |
322 | /* This is to avoid the effect of locale. */ | |
8ff096c1 | 323 | static const FcChar8 lang[] = "en"; |
89a95b7c | 324 | langset = FcLangSetCreate (); |
8ff096c1 | 325 | FcLangSetAdd (langset, lang); |
89a95b7c KH |
326 | FcPatternAddLangSet (pattern, FC_LANG, langset); |
327 | FcLangSetDestroy (langset); | |
328 | } | |
42984a74 | 329 | FcConfigSubstitute (NULL, pattern, FcMatchPattern); |
318548be KH |
330 | FcDefaultSubstitute (pattern); |
331 | match = FcFontMatch (NULL, pattern, &result); | |
332 | if (match) | |
706b6995 | 333 | { |
318548be KH |
334 | FcChar8 *fam; |
335 | ||
336 | if (FcPatternGetString (match, FC_FAMILY, 0, &fam) == FcResultMatch) | |
337 | family = intern ((char *) fam); | |
706b6995 | 338 | } |
318548be KH |
339 | else |
340 | family = Qnil; | |
341 | XSETCDR (slot, family); | |
318548be | 342 | if (match) FcPatternDestroy (match); |
bf39cdd8 | 343 | err: |
42984a74 | 344 | if (pattern) FcPatternDestroy (pattern); |
318548be | 345 | return family; |
706b6995 KH |
346 | } |
347 | ||
e302a291 KH |
348 | struct ftfont_cache_data |
349 | { | |
350 | FT_Face ft_face; | |
351 | FcCharSet *fc_charset; | |
352 | }; | |
353 | ||
354 | static Lisp_Object | |
971de7fb | 355 | ftfont_lookup_cache (Lisp_Object key, enum ftfont_cache_for cache_for) |
21988a08 | 356 | { |
99c4d65d | 357 | Lisp_Object cache, val, entity; |
e302a291 | 358 | struct ftfont_cache_data *cache_data; |
21988a08 | 359 | |
99c4d65d KH |
360 | if (FONT_ENTITY_P (key)) |
361 | { | |
362 | entity = key; | |
363 | val = assq_no_quit (QCfont_entity, AREF (entity, FONT_EXTRA_INDEX)); | |
364 | xassert (CONSP (val)); | |
365 | key = XCDR (val); | |
366 | } | |
367 | else | |
368 | entity = Qnil; | |
369 | ||
d7782105 KH |
370 | if (NILP (ft_face_cache)) |
371 | cache = Qnil; | |
372 | else | |
373 | cache = Fgethash (key, ft_face_cache, Qnil); | |
21988a08 KH |
374 | if (NILP (cache)) |
375 | { | |
d7782105 KH |
376 | if (NILP (ft_face_cache)) |
377 | { | |
378 | Lisp_Object args[2]; | |
379 | ||
380 | args[0] = QCtest; | |
381 | args[1] = Qequal; | |
382 | ft_face_cache = Fmake_hash_table (2, args); | |
383 | } | |
e302a291 KH |
384 | cache_data = xmalloc (sizeof (struct ftfont_cache_data)); |
385 | cache_data->ft_face = NULL; | |
386 | cache_data->fc_charset = NULL; | |
21988a08 | 387 | val = make_save_value (NULL, 0); |
e302a291 KH |
388 | XSAVE_VALUE (val)->integer = 0; |
389 | XSAVE_VALUE (val)->pointer = cache_data; | |
d7782105 KH |
390 | cache = Fcons (Qnil, val); |
391 | Fputhash (key, cache, ft_face_cache); | |
21988a08 KH |
392 | } |
393 | else | |
21988a08 | 394 | { |
e302a291 KH |
395 | val = XCDR (cache); |
396 | cache_data = XSAVE_VALUE (val)->pointer; | |
397 | } | |
d7782105 KH |
398 | |
399 | if (cache_for == FTFONT_CACHE_FOR_ENTITY) | |
400 | return cache; | |
401 | ||
402 | if (cache_for == FTFONT_CACHE_FOR_FACE | |
403 | ? ! cache_data->ft_face : ! cache_data->fc_charset) | |
e302a291 | 404 | { |
51b59d79 | 405 | char *filename = SSDATA (XCAR (key)); |
49eaafba | 406 | int idx = XINT (XCDR (key)); |
21988a08 | 407 | |
d7782105 | 408 | if (cache_for == FTFONT_CACHE_FOR_FACE) |
e302a291 KH |
409 | { |
410 | if (! ft_library | |
411 | && FT_Init_FreeType (&ft_library) != 0) | |
412 | return Qnil; | |
49eaafba | 413 | if (FT_New_Face (ft_library, filename, idx, &cache_data->ft_face) |
e302a291 KH |
414 | != 0) |
415 | return Qnil; | |
416 | } | |
417 | else | |
418 | { | |
99c4d65d KH |
419 | FcPattern *pat = NULL; |
420 | FcFontSet *fontset = NULL; | |
421 | FcObjectSet *objset = NULL; | |
422 | FcCharSet *charset = NULL; | |
e302a291 KH |
423 | |
424 | pat = FcPatternBuild (0, FC_FILE, FcTypeString, (FcChar8 *) filename, | |
49eaafba | 425 | FC_INDEX, FcTypeInteger, idx, NULL); |
99c4d65d KH |
426 | if (! pat) |
427 | goto finish; | |
428 | objset = FcObjectSetBuild (FC_CHARSET, FC_STYLE, NULL); | |
429 | if (! objset) | |
430 | goto finish; | |
e302a291 | 431 | fontset = FcFontList (NULL, pat, objset); |
99c4d65d KH |
432 | if (! fontset) |
433 | goto finish; | |
d7782105 KH |
434 | if (fontset && fontset->nfont > 0 |
435 | && (FcPatternGetCharSet (fontset->fonts[0], FC_CHARSET, 0, | |
1c0db158 | 436 | &charset) |
d7782105 KH |
437 | == FcResultMatch)) |
438 | cache_data->fc_charset = FcCharSetCopy (charset); | |
e302a291 KH |
439 | else |
440 | cache_data->fc_charset = FcCharSetCreate (); | |
99c4d65d KH |
441 | |
442 | finish: | |
443 | if (fontset) | |
444 | FcFontSetDestroy (fontset); | |
445 | if (objset) | |
446 | FcObjectSetDestroy (objset); | |
447 | if (pat) | |
448 | FcPatternDestroy (pat); | |
e302a291 | 449 | } |
21988a08 KH |
450 | } |
451 | return cache; | |
452 | } | |
453 | ||
e302a291 | 454 | FcCharSet * |
971de7fb | 455 | ftfont_get_fc_charset (Lisp_Object entity) |
e302a291 KH |
456 | { |
457 | Lisp_Object val, cache; | |
458 | struct ftfont_cache_data *cache_data; | |
459 | ||
d7782105 | 460 | cache = ftfont_lookup_cache (entity, FTFONT_CACHE_FOR_CHARSET); |
e302a291 KH |
461 | val = XCDR (cache); |
462 | cache_data = XSAVE_VALUE (val)->pointer; | |
463 | return cache_data->fc_charset; | |
464 | } | |
465 | ||
466 | #ifdef HAVE_LIBOTF | |
467 | static OTF * | |
d5a3eaaf | 468 | ftfont_get_otf (struct ftfont_info *ftfont_info) |
e302a291 KH |
469 | { |
470 | OTF *otf; | |
471 | ||
472 | if (ftfont_info->otf) | |
473 | return ftfont_info->otf; | |
474 | if (! ftfont_info->maybe_otf) | |
475 | return NULL; | |
476 | otf = OTF_open_ft_face (ftfont_info->ft_size->face); | |
477 | if (! otf || OTF_get_table (otf, "head") < 0) | |
478 | { | |
479 | if (otf) | |
480 | OTF_close (otf); | |
481 | ftfont_info->maybe_otf = 0; | |
482 | return NULL; | |
483 | } | |
484 | ftfont_info->otf = otf; | |
485 | return otf; | |
486 | } | |
487 | #endif /* HAVE_LIBOTF */ | |
488 | ||
f57e2426 J |
489 | static Lisp_Object ftfont_get_cache (FRAME_PTR); |
490 | static Lisp_Object ftfont_list (Lisp_Object, Lisp_Object); | |
491 | static Lisp_Object ftfont_match (Lisp_Object, Lisp_Object); | |
492 | static Lisp_Object ftfont_list_family (Lisp_Object); | |
493 | static Lisp_Object ftfont_open (FRAME_PTR, Lisp_Object, int); | |
494 | static void ftfont_close (FRAME_PTR, struct font *); | |
495 | static int ftfont_has_char (Lisp_Object, int); | |
496 | static unsigned ftfont_encode_char (struct font *, int); | |
497 | static int ftfont_text_extents (struct font *, unsigned *, int, | |
498 | struct font_metrics *); | |
499 | static int ftfont_get_bitmap (struct font *, unsigned, | |
500 | struct font_bitmap *, int); | |
501 | static int ftfont_anchor_point (struct font *, unsigned, int, | |
502 | int *, int *); | |
a00924bb | 503 | #ifdef HAVE_LIBOTF |
f57e2426 | 504 | static Lisp_Object ftfont_otf_capability (struct font *); |
a00924bb | 505 | # ifdef HAVE_M17N_FLT |
f57e2426 | 506 | static Lisp_Object ftfont_shape (Lisp_Object); |
a00924bb PE |
507 | # endif |
508 | #endif | |
3ce80cbe | 509 | |
3ce80cbe | 510 | #ifdef HAVE_OTF_GET_VARIATION_GLYPHS |
f57e2426 J |
511 | static int ftfont_variation_glyphs (struct font *, int c, |
512 | unsigned variations[256]); | |
3ce80cbe | 513 | #endif /* HAVE_OTF_GET_VARIATION_GLYPHS */ |
c2f5bfd6 KH |
514 | |
515 | struct font_driver ftfont_driver = | |
516 | { | |
09a56ce4 | 517 | 0, /* Qfreetype */ |
42984a74 | 518 | 0, /* case insensitive */ |
c2f5bfd6 | 519 | ftfont_get_cache, |
c2f5bfd6 | 520 | ftfont_list, |
8daf5667 | 521 | ftfont_match, |
c2f5bfd6 | 522 | ftfont_list_family, |
2b33f1ef | 523 | NULL, /* free_entity */ |
c2f5bfd6 KH |
524 | ftfont_open, |
525 | ftfont_close, | |
526 | /* We can't draw a text without device dependent functions. */ | |
2b33f1ef KH |
527 | NULL, /* prepare_face */ |
528 | NULL, /* done_face */ | |
c2f5bfd6 KH |
529 | ftfont_has_char, |
530 | ftfont_encode_char, | |
531 | ftfont_text_extents, | |
532 | /* We can't draw a text without device dependent functions. */ | |
2b33f1ef | 533 | NULL, /* draw */ |
c2f5bfd6 | 534 | ftfont_get_bitmap, |
2b33f1ef KH |
535 | NULL, /* get_bitmap */ |
536 | NULL, /* free_bitmap */ | |
537 | NULL, /* get_outline */ | |
c2f5bfd6 | 538 | ftfont_anchor_point, |
e302a291 KH |
539 | #ifdef HAVE_LIBOTF |
540 | ftfont_otf_capability, | |
541 | #else /* not HAVE_LIBOTF */ | |
c2f5bfd6 | 542 | NULL, |
e302a291 | 543 | #endif /* not HAVE_LIBOTF */ |
2b33f1ef KH |
544 | NULL, /* otf_drive */ |
545 | NULL, /* start_for_frame */ | |
546 | NULL, /* end_for_frame */ | |
637ac44c | 547 | #if defined (HAVE_M17N_FLT) && defined (HAVE_LIBOTF) |
2b33f1ef | 548 | ftfont_shape, |
637ac44c | 549 | #else /* not (HAVE_M17N_FLT && HAVE_LIBOTF) */ |
2b33f1ef | 550 | NULL, |
637ac44c | 551 | #endif /* not (HAVE_M17N_FLT && HAVE_LIBOTF) */ |
2b33f1ef | 552 | NULL, /* check */ |
3ce80cbe | 553 | |
e3869731 | 554 | #ifdef HAVE_OTF_GET_VARIATION_GLYPHS |
637fa988 | 555 | ftfont_variation_glyphs, |
2b33f1ef | 556 | #else |
637fa988 | 557 | NULL, |
2b33f1ef | 558 | #endif |
637fa988 JD |
559 | |
560 | ftfont_filter_properties, /* filter_properties */ | |
c2f5bfd6 KH |
561 | }; |
562 | ||
c2f5bfd6 | 563 | static Lisp_Object |
971de7fb | 564 | ftfont_get_cache (FRAME_PTR f) |
c2f5bfd6 | 565 | { |
c2f5bfd6 KH |
566 | return freetype_font_cache; |
567 | } | |
568 | ||
21988a08 | 569 | static int |
971de7fb | 570 | ftfont_get_charset (Lisp_Object registry) |
21988a08 | 571 | { |
51b59d79 | 572 | char *str = SSDATA (SYMBOL_NAME (registry)); |
e302a291 KH |
573 | char *re = alloca (SBYTES (SYMBOL_NAME (registry)) * 2 + 1); |
574 | Lisp_Object regexp; | |
21988a08 KH |
575 | int i, j; |
576 | ||
e302a291 KH |
577 | for (i = j = 0; i < SBYTES (SYMBOL_NAME (registry)); i++, j++) |
578 | { | |
579 | if (str[i] == '.') | |
580 | re[j++] = '\\'; | |
581 | else if (str[i] == '*') | |
582 | re[j++] = '.'; | |
583 | re[j] = str[i]; | |
584 | if (re[j] == '?') | |
585 | re[j] = '.'; | |
586 | } | |
587 | re[j] = '\0'; | |
588 | regexp = make_unibyte_string (re, j); | |
21988a08 | 589 | for (i = 0; fc_charset_table[i].name; i++) |
e302a291 | 590 | if (fast_c_string_match_ignore_case (regexp, fc_charset_table[i].name) >= 0) |
21988a08 KH |
591 | break; |
592 | if (! fc_charset_table[i].name) | |
593 | return -1; | |
594 | if (! fc_charset_table[i].fc_charset) | |
595 | { | |
d7782105 KH |
596 | FcCharSet *charset = FcCharSetCreate (); |
597 | int *uniquifier = fc_charset_table[i].uniquifier; | |
21988a08 | 598 | |
d7782105 KH |
599 | if (! charset) |
600 | return -1; | |
601 | for (j = 0; uniquifier[j]; j++) | |
602 | if (! FcCharSetAddChar (charset, uniquifier[j])) | |
603 | { | |
604 | FcCharSetDestroy (charset); | |
21988a08 | 605 | return -1; |
d7782105 KH |
606 | } |
607 | fc_charset_table[i].fc_charset = charset; | |
21988a08 KH |
608 | } |
609 | return i; | |
610 | } | |
611 | ||
cc63eaf9 KH |
612 | struct OpenTypeSpec |
613 | { | |
16963817 KH |
614 | Lisp_Object script; |
615 | unsigned int script_tag, langsys_tag; | |
cc63eaf9 KH |
616 | int nfeatures[2]; |
617 | unsigned int *features[2]; | |
618 | }; | |
619 | ||
7eb5d3d7 | 620 | #define OTF_SYM_TAG(SYM, TAG) \ |
cc63eaf9 | 621 | do { \ |
7eb5d3d7 KH |
622 | unsigned char *p = SDATA (SYMBOL_NAME (SYM)); \ |
623 | TAG = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; \ | |
cc63eaf9 KH |
624 | } while (0) |
625 | ||
7eb5d3d7 | 626 | #define OTF_TAG_STR(TAG, P) \ |
cc63eaf9 | 627 | do { \ |
7eb5d3d7 KH |
628 | (P)[0] = (char) (TAG >> 24); \ |
629 | (P)[1] = (char) ((TAG >> 16) & 0xFF); \ | |
630 | (P)[2] = (char) ((TAG >> 8) & 0xFF); \ | |
631 | (P)[3] = (char) (TAG & 0xFF); \ | |
16963817 | 632 | (P)[4] = '\0'; \ |
cc63eaf9 KH |
633 | } while (0) |
634 | ||
a00924bb | 635 | #ifdef HAVE_LIBOTF |
e302a291 KH |
636 | #define OTF_TAG_SYM(SYM, TAG) \ |
637 | do { \ | |
638 | char str[5]; \ | |
639 | \ | |
640 | OTF_TAG_STR (TAG, str); \ | |
641 | (SYM) = font_intern_prop (str, 4, 1); \ | |
642 | } while (0) | |
a00924bb | 643 | #endif |
e302a291 KH |
644 | |
645 | ||
cc63eaf9 KH |
646 | static struct OpenTypeSpec * |
647 | ftfont_get_open_type_spec (Lisp_Object otf_spec) | |
648 | { | |
649 | struct OpenTypeSpec *spec = malloc (sizeof (struct OpenTypeSpec)); | |
650 | Lisp_Object val; | |
651 | int i, j, negative; | |
652 | ||
653 | if (! spec) | |
654 | return NULL; | |
16963817 | 655 | spec->script = XCAR (otf_spec); |
43f4f91c | 656 | if (! NILP (spec->script)) |
16963817 KH |
657 | { |
658 | OTF_SYM_TAG (spec->script, spec->script_tag); | |
659 | val = assq_no_quit (spec->script, Votf_script_alist); | |
660 | if (CONSP (val) && SYMBOLP (XCDR (val))) | |
661 | spec->script = XCDR (val); | |
662 | else | |
663 | spec->script = Qnil; | |
664 | } | |
cc63eaf9 | 665 | else |
16963817 | 666 | spec->script_tag = 0x44464C54; /* "DFLT" */ |
cc63eaf9 | 667 | otf_spec = XCDR (otf_spec); |
f88cc4d6 KH |
668 | spec->langsys_tag = 0; |
669 | if (! NILP (otf_spec)) | |
670 | { | |
671 | val = XCAR (otf_spec); | |
672 | if (! NILP (val)) | |
673 | OTF_SYM_TAG (val, spec->langsys_tag); | |
674 | otf_spec = XCDR (otf_spec); | |
675 | } | |
cc63eaf9 | 676 | spec->nfeatures[0] = spec->nfeatures[1] = 0; |
f88cc4d6 | 677 | for (i = 0; i < 2 && ! NILP (otf_spec); i++, otf_spec = XCDR (otf_spec)) |
cc63eaf9 KH |
678 | { |
679 | Lisp_Object len; | |
680 | ||
cc63eaf9 KH |
681 | val = XCAR (otf_spec); |
682 | if (NILP (val)) | |
683 | continue; | |
684 | len = Flength (val); | |
685 | spec->features[i] = malloc (sizeof (int) * XINT (len)); | |
686 | if (! spec->features[i]) | |
687 | { | |
688 | if (i > 0 && spec->features[0]) | |
689 | free (spec->features[0]); | |
690 | free (spec); | |
691 | return NULL; | |
692 | } | |
693 | for (j = 0, negative = 0; CONSP (val); val = XCDR (val)) | |
694 | { | |
695 | if (NILP (XCAR (val))) | |
696 | negative = 1; | |
697 | else | |
698 | { | |
699 | unsigned int tag; | |
700 | ||
701 | OTF_SYM_TAG (XCAR (val), tag); | |
702 | spec->features[i][j++] = negative ? tag & 0x80000000 : tag; | |
703 | } | |
704 | } | |
705 | spec->nfeatures[i] = j; | |
706 | } | |
707 | return spec; | |
708 | } | |
709 | ||
42984a74 | 710 | static FcPattern * |
675e2c69 | 711 | ftfont_spec_pattern (Lisp_Object spec, char *otlayout, struct OpenTypeSpec **otspec, const char **langname) |
c2f5bfd6 | 712 | { |
21988a08 | 713 | Lisp_Object tmp, extra; |
c2f5bfd6 KH |
714 | FcPattern *pattern = NULL; |
715 | FcCharSet *charset = NULL; | |
716 | FcLangSet *langset = NULL; | |
42984a74 KH |
717 | int n; |
718 | int dpi = -1; | |
bc9a2afe | 719 | int scalable = -1; |
42984a74 | 720 | Lisp_Object script = Qnil; |
21988a08 | 721 | Lisp_Object registry; |
e302a291 | 722 | int fc_charset_idx; |
c2f5bfd6 | 723 | |
42984a74 KH |
724 | if ((n = FONT_SLANT_NUMERIC (spec)) >= 0 |
725 | && n < 100) | |
63565713 | 726 | /* Fontconfig doesn't support reverse-italic/obligue. */ |
42984a74 KH |
727 | return NULL; |
728 | ||
729 | if (INTEGERP (AREF (spec, FONT_DPI_INDEX))) | |
730 | dpi = XINT (AREF (spec, FONT_DPI_INDEX)); | |
42984a74 KH |
731 | if (INTEGERP (AREF (spec, FONT_AVGWIDTH_INDEX)) |
732 | && XINT (AREF (spec, FONT_AVGWIDTH_INDEX)) == 0) | |
733 | scalable = 1; | |
63565713 | 734 | |
21988a08 KH |
735 | registry = AREF (spec, FONT_REGISTRY_INDEX); |
736 | if (NILP (registry) | |
770835fd | 737 | || EQ (registry, Qascii_0) |
21988a08 | 738 | || EQ (registry, Qiso10646_1) |
7b649478 | 739 | || EQ (registry, Qunicode_bmp)) |
e302a291 | 740 | fc_charset_idx = -1; |
21988a08 | 741 | else |
c2f5bfd6 | 742 | { |
7d7ad10e KH |
743 | FcChar8 *lang; |
744 | ||
e302a291 KH |
745 | fc_charset_idx = ftfont_get_charset (registry); |
746 | if (fc_charset_idx < 0) | |
42984a74 | 747 | return NULL; |
e302a291 | 748 | charset = fc_charset_table[fc_charset_idx].fc_charset; |
497e54d8 KH |
749 | *langname = fc_charset_table[fc_charset_idx].lang; |
750 | lang = (FcChar8 *) *langname; | |
7d7ad10e KH |
751 | if (lang) |
752 | { | |
753 | langset = FcLangSetCreate (); | |
754 | if (! langset) | |
755 | goto err; | |
756 | FcLangSetAdd (langset, lang); | |
757 | } | |
c2f5bfd6 KH |
758 | } |
759 | ||
cc63eaf9 | 760 | otlayout[0] = '\0'; |
8daf5667 KH |
761 | for (extra = AREF (spec, FONT_EXTRA_INDEX); |
762 | CONSP (extra); extra = XCDR (extra)) | |
c2f5bfd6 | 763 | { |
8daf5667 KH |
764 | Lisp_Object key, val; |
765 | ||
42984a74 KH |
766 | key = XCAR (XCAR (extra)), val = XCDR (XCAR (extra)); |
767 | if (EQ (key, QCdpi)) | |
9e269017 KH |
768 | { |
769 | if (INTEGERP (val)) | |
770 | dpi = XINT (val); | |
771 | } | |
42984a74 | 772 | else if (EQ (key, QClang)) |
c2f5bfd6 | 773 | { |
7d7ad10e KH |
774 | if (! langset) |
775 | langset = FcLangSetCreate (); | |
c2f5bfd6 KH |
776 | if (! langset) |
777 | goto err; | |
8daf5667 | 778 | if (SYMBOLP (val)) |
c2f5bfd6 | 779 | { |
8daf5667 | 780 | if (! FcLangSetAdd (langset, SYMBOL_FcChar8 (val))) |
c2f5bfd6 KH |
781 | goto err; |
782 | } | |
783 | else | |
8daf5667 KH |
784 | for (; CONSP (val); val = XCDR (val)) |
785 | if (SYMBOLP (XCAR (val)) | |
786 | && ! FcLangSetAdd (langset, SYMBOL_FcChar8 (XCAR (val)))) | |
787 | goto err; | |
c2f5bfd6 | 788 | } |
42984a74 KH |
789 | else if (EQ (key, QCotf)) |
790 | { | |
9e269017 KH |
791 | if (CONSP (val)) |
792 | { | |
793 | *otspec = ftfont_get_open_type_spec (val); | |
794 | if (! *otspec) | |
795 | return NULL; | |
796 | strcat (otlayout, "otlayout:"); | |
797 | OTF_TAG_STR ((*otspec)->script_tag, otlayout + 9); | |
798 | script = (*otspec)->script; | |
799 | } | |
42984a74 | 800 | } |
8daf5667 KH |
801 | else if (EQ (key, QCscript)) |
802 | script = val; | |
8daf5667 KH |
803 | else if (EQ (key, QCscalable)) |
804 | scalable = ! NILP (val); | |
805 | } | |
c2f5bfd6 | 806 | |
8daf5667 KH |
807 | if (! NILP (script) && ! charset) |
808 | { | |
809 | Lisp_Object chars = assq_no_quit (script, Vscript_representative_chars); | |
810 | ||
7c4bd58d | 811 | if (CONSP (chars) && CONSP (CDR (chars))) |
8daf5667 KH |
812 | { |
813 | charset = FcCharSetCreate (); | |
814 | if (! charset) | |
815 | goto err; | |
816 | for (chars = XCDR (chars); CONSP (chars); chars = XCDR (chars)) | |
817 | if (CHARACTERP (XCAR (chars)) | |
818 | && ! FcCharSetAddChar (charset, XUINT (XCAR (chars)))) | |
819 | goto err; | |
c2f5bfd6 KH |
820 | } |
821 | } | |
822 | ||
4ffe34a4 | 823 | pattern = FcPatternCreate (); |
706b6995 KH |
824 | if (! pattern) |
825 | goto err; | |
706b6995 | 826 | tmp = AREF (spec, FONT_FOUNDRY_INDEX); |
42984a74 | 827 | if (! NILP (tmp) |
706b6995 KH |
828 | && ! FcPatternAddString (pattern, FC_FOUNDRY, SYMBOL_FcChar8 (tmp))) |
829 | goto err; | |
318548be KH |
830 | tmp = AREF (spec, FONT_FAMILY_INDEX); |
831 | if (! NILP (tmp) | |
832 | && ! FcPatternAddString (pattern, FC_FAMILY, SYMBOL_FcChar8 (tmp))) | |
833 | goto err; | |
c2f5bfd6 KH |
834 | if (charset |
835 | && ! FcPatternAddCharSet (pattern, FC_CHARSET, charset)) | |
836 | goto err; | |
837 | if (langset | |
838 | && ! FcPatternAddLangSet (pattern, FC_LANG, langset)) | |
839 | goto err; | |
bc9a2afe KH |
840 | if (dpi >= 0 |
841 | && ! FcPatternAddDouble (pattern, FC_DPI, dpi)) | |
842 | goto err; | |
bc9a2afe | 843 | if (scalable >= 0 |
25a5d05b | 844 | && ! FcPatternAddBool (pattern, FC_SCALABLE, scalable ? FcTrue : FcFalse)) |
bc9a2afe | 845 | goto err; |
7d7ad10e | 846 | |
42984a74 | 847 | goto finish; |
c2f5bfd6 | 848 | |
42984a74 KH |
849 | err: |
850 | /* We come here because of unexpected error in fontconfig API call | |
851 | (usually insufficient memory). */ | |
852 | if (pattern) | |
853 | { | |
854 | FcPatternDestroy (pattern); | |
855 | pattern = NULL; | |
856 | } | |
857 | if (*otspec) | |
858 | { | |
859 | if ((*otspec)->nfeatures[0] > 0) | |
860 | free ((*otspec)->features[0]); | |
861 | if ((*otspec)->nfeatures[1] > 0) | |
862 | free ((*otspec)->features[1]); | |
863 | free (*otspec); | |
864 | *otspec = NULL; | |
865 | } | |
866 | ||
867 | finish: | |
42984a74 | 868 | if (langset) FcLangSetDestroy (langset); |
e302a291 | 869 | if (charset && fc_charset_idx < 0) FcCharSetDestroy (charset); |
42984a74 KH |
870 | return pattern; |
871 | } | |
872 | ||
873 | static Lisp_Object | |
971de7fb | 874 | ftfont_list (Lisp_Object frame, Lisp_Object spec) |
42984a74 | 875 | { |
99c4d65d | 876 | Lisp_Object val = Qnil, family, adstyle; |
42984a74 KH |
877 | int i; |
878 | FcPattern *pattern; | |
879 | FcFontSet *fontset = NULL; | |
880 | FcObjectSet *objset = NULL; | |
7c4bd58d KH |
881 | FcCharSet *charset; |
882 | Lisp_Object chars = Qnil; | |
42984a74 KH |
883 | char otlayout[15]; /* For "otlayout:XXXX" */ |
884 | struct OpenTypeSpec *otspec = NULL; | |
5d376f74 | 885 | int spacing = -1; |
675e2c69 | 886 | const char *langname = NULL; |
2a46904e | 887 | |
42984a74 KH |
888 | if (! fc_initialized) |
889 | { | |
890 | FcInit (); | |
891 | fc_initialized = 1; | |
892 | } | |
893 | ||
497e54d8 | 894 | pattern = ftfont_spec_pattern (spec, otlayout, &otspec, &langname); |
42984a74 KH |
895 | if (! pattern) |
896 | return Qnil; | |
7c4bd58d KH |
897 | if (FcPatternGetCharSet (pattern, FC_CHARSET, 0, &charset) != FcResultMatch) |
898 | { | |
899 | val = assq_no_quit (QCscript, AREF (spec, FONT_EXTRA_INDEX)); | |
900 | if (! NILP (val)) | |
901 | { | |
902 | val = assq_no_quit (XCDR (val), Vscript_representative_chars); | |
903 | if (CONSP (val) && VECTORP (XCDR (val))) | |
904 | chars = XCDR (val); | |
905 | } | |
906 | val = Qnil; | |
907 | } | |
5d376f74 KH |
908 | if (INTEGERP (AREF (spec, FONT_SPACING_INDEX))) |
909 | spacing = XINT (AREF (spec, FONT_SPACING_INDEX)); | |
318548be KH |
910 | family = AREF (spec, FONT_FAMILY_INDEX); |
911 | if (! NILP (family)) | |
912 | { | |
913 | Lisp_Object resolved; | |
914 | ||
7d7ad10e | 915 | resolved = ftfont_resolve_generic_family (family, pattern); |
318548be KH |
916 | if (! NILP (resolved)) |
917 | { | |
918 | FcPatternDel (pattern, FC_FAMILY); | |
919 | if (! FcPatternAddString (pattern, FC_FAMILY, | |
920 | SYMBOL_FcChar8 (resolved))) | |
921 | goto err; | |
922 | } | |
923 | } | |
99c4d65d KH |
924 | adstyle = AREF (spec, FONT_ADSTYLE_INDEX); |
925 | if (! NILP (adstyle) && SBYTES (SYMBOL_NAME (adstyle)) == 0) | |
926 | adstyle = Qnil; | |
706b6995 | 927 | objset = FcObjectSetBuild (FC_FOUNDRY, FC_FAMILY, FC_WEIGHT, FC_SLANT, |
42984a74 | 928 | FC_WIDTH, FC_PIXEL_SIZE, FC_SPACING, FC_SCALABLE, |
99c4d65d | 929 | FC_STYLE, FC_FILE, FC_INDEX, |
42984a74 KH |
930 | #ifdef FC_CAPABILITY |
931 | FC_CAPABILITY, | |
932 | #endif /* FC_CAPABILITY */ | |
4ffe34a4 KH |
933 | #ifdef FC_FONTFORMAT |
934 | FC_FONTFORMAT, | |
935 | #endif | |
e907d979 | 936 | NULL); |
706b6995 KH |
937 | if (! objset) |
938 | goto err; | |
7c4bd58d KH |
939 | if (! NILP (chars)) |
940 | FcObjectSetAdd (objset, FC_CHARSET); | |
42984a74 | 941 | |
318548be | 942 | fontset = FcFontList (NULL, pattern, objset); |
7c4bd58d KH |
943 | if (! fontset || fontset->nfont == 0) |
944 | goto finish; | |
770835fd KH |
945 | #if 0 |
946 | /* Need fix because this finds any fonts. */ | |
947 | if (fontset->nfont == 0 && ! NILP (family)) | |
948 | { | |
949 | /* Try maching with configuration. For instance, the | |
950 | configuration may specify "Nimbus Mono L" as an alias of | |
951 | "Courier". */ | |
952 | FcPattern *pat = FcPatternBuild (0, FC_FAMILY, FcTypeString, | |
953 | SYMBOL_FcChar8 (family), NULL); | |
954 | FcChar8 *fam; | |
955 | ||
956 | if (FcConfigSubstitute (NULL, pat, FcMatchPattern) == FcTrue) | |
957 | { | |
958 | for (i = 0; | |
959 | FcPatternGetString (pat, FC_FAMILY, i, &fam) == FcResultMatch; | |
960 | i++) | |
961 | { | |
962 | FcPatternDel (pattern, FC_FAMILY); | |
963 | FcPatternAddString (pattern, FC_FAMILY, fam); | |
964 | FcFontSetDestroy (fontset); | |
965 | fontset = FcFontList (NULL, pattern, objset); | |
1c0db158 | 966 | if (fontset && fontset->nfont > 0) |
770835fd KH |
967 | break; |
968 | } | |
969 | } | |
970 | } | |
971 | #endif | |
318548be | 972 | for (i = 0; i < fontset->nfont; i++) |
bc5f6c42 | 973 | { |
318548be | 974 | Lisp_Object entity; |
f63d54dc | 975 | |
5d376f74 KH |
976 | if (spacing >= 0) |
977 | { | |
978 | int this; | |
979 | ||
980 | if ((FcPatternGetInteger (fontset->fonts[i], FC_SPACING, 0, &this) | |
981 | == FcResultMatch) | |
982 | && spacing != this) | |
983 | continue; | |
984 | } | |
985 | ||
bc5f6c42 | 986 | #ifdef FC_CAPABILITY |
318548be KH |
987 | if (otlayout[0]) |
988 | { | |
989 | FcChar8 *this; | |
a85f724a | 990 | |
7c4bd58d KH |
991 | if (FcPatternGetString (fontset->fonts[i], FC_CAPABILITY, 0, &this) |
992 | != FcResultMatch | |
318548be KH |
993 | || ! strstr ((char *) this, otlayout)) |
994 | continue; | |
995 | } | |
bc5f6c42 | 996 | #endif /* FC_CAPABILITY */ |
cc63eaf9 | 997 | #ifdef HAVE_LIBOTF |
318548be KH |
998 | if (otspec) |
999 | { | |
1000 | FcChar8 *file; | |
1001 | OTF *otf; | |
1002 | ||
1003 | if (FcPatternGetString (fontset->fonts[i], FC_FILE, 0, &file) | |
1004 | != FcResultMatch) | |
1005 | continue; | |
1006 | otf = OTF_open ((char *) file); | |
1007 | if (! otf) | |
1008 | continue; | |
1009 | if (OTF_check_features (otf, 1, | |
1010 | otspec->script_tag, otspec->langsys_tag, | |
1011 | otspec->features[0], | |
1012 | otspec->nfeatures[0]) != 1 | |
1013 | || OTF_check_features (otf, 0, | |
1014 | otspec->script_tag, otspec->langsys_tag, | |
1015 | otspec->features[1], | |
1016 | otspec->nfeatures[1]) != 1) | |
1017 | continue; | |
c2f5bfd6 | 1018 | } |
318548be | 1019 | #endif /* HAVE_LIBOTF */ |
7c4bd58d KH |
1020 | if (VECTORP (chars)) |
1021 | { | |
1022 | int j; | |
1023 | ||
1024 | if (FcPatternGetCharSet (fontset->fonts[i], FC_CHARSET, 0, &charset) | |
1025 | != FcResultMatch) | |
1026 | continue; | |
1027 | for (j = 0; j < ASIZE (chars); j++) | |
1028 | if (NATNUMP (AREF (chars, j)) | |
1029 | && FcCharSetHasChar (charset, XFASTINT (AREF (chars, j)))) | |
1030 | break; | |
1031 | if (j == ASIZE (chars)) | |
1032 | continue; | |
1033 | } | |
497e54d8 | 1034 | if (! NILP (adstyle) || langname) |
99c4d65d KH |
1035 | { |
1036 | Lisp_Object this_adstyle = get_adstyle_property (fontset->fonts[i]); | |
1037 | ||
497e54d8 KH |
1038 | if (! NILP (adstyle) |
1039 | && (NILP (this_adstyle) | |
25a48bd0 PE |
1040 | || xstrcasecmp (SSDATA (SYMBOL_NAME (adstyle)), |
1041 | SSDATA (SYMBOL_NAME (this_adstyle))) != 0)) | |
497e54d8 KH |
1042 | continue; |
1043 | if (langname | |
1044 | && ! NILP (this_adstyle) | |
25a48bd0 | 1045 | && xstrcasecmp (langname, SSDATA (SYMBOL_NAME (this_adstyle)))) |
99c4d65d KH |
1046 | continue; |
1047 | } | |
e302a291 KH |
1048 | entity = ftfont_pattern_entity (fontset->fonts[i], |
1049 | AREF (spec, FONT_EXTRA_INDEX)); | |
318548be KH |
1050 | if (! NILP (entity)) |
1051 | val = Fcons (entity, val); | |
c2f5bfd6 | 1052 | } |
7c4bd58d | 1053 | val = Fnreverse (val); |
c2f5bfd6 KH |
1054 | goto finish; |
1055 | ||
1056 | err: | |
1057 | /* We come here because of unexpected error in fontconfig API call | |
706b6995 | 1058 | (usually insufficient memory). */ |
c2f5bfd6 KH |
1059 | val = Qnil; |
1060 | ||
1061 | finish: | |
678dca3d | 1062 | FONT_ADD_LOG ("ftfont-list", spec, val); |
c2f5bfd6 KH |
1063 | if (objset) FcObjectSetDestroy (objset); |
1064 | if (fontset) FcFontSetDestroy (fontset); | |
c2f5bfd6 | 1065 | if (pattern) FcPatternDestroy (pattern); |
c2f5bfd6 KH |
1066 | return val; |
1067 | } | |
1068 | ||
8daf5667 | 1069 | static Lisp_Object |
971de7fb | 1070 | ftfont_match (Lisp_Object frame, Lisp_Object spec) |
8daf5667 | 1071 | { |
a3c15670 | 1072 | Lisp_Object entity = Qnil; |
42984a74 | 1073 | FcPattern *pattern, *match = NULL; |
8daf5667 | 1074 | FcResult result; |
42984a74 KH |
1075 | char otlayout[15]; /* For "otlayout:XXXX" */ |
1076 | struct OpenTypeSpec *otspec = NULL; | |
675e2c69 | 1077 | const char *langname = NULL; |
8daf5667 KH |
1078 | |
1079 | if (! fc_initialized) | |
1080 | { | |
1081 | FcInit (); | |
1082 | fc_initialized = 1; | |
1083 | } | |
1084 | ||
497e54d8 | 1085 | pattern = ftfont_spec_pattern (spec, otlayout, &otspec, &langname); |
42984a74 | 1086 | if (! pattern) |
8daf5667 KH |
1087 | return Qnil; |
1088 | ||
42984a74 | 1089 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
8daf5667 | 1090 | { |
42984a74 | 1091 | FcValue value; |
55082642 | 1092 | |
42984a74 KH |
1093 | value.type = FcTypeDouble; |
1094 | value.u.d = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
1095 | FcPatternAdd (pattern, FC_PIXEL_SIZE, value, FcFalse); | |
1096 | } | |
1097 | if (FcConfigSubstitute (NULL, pattern, FcMatchPattern) == FcTrue) | |
1098 | { | |
1099 | FcDefaultSubstitute (pattern); | |
1100 | match = FcFontMatch (NULL, pattern, &result); | |
1101 | if (match) | |
8daf5667 | 1102 | { |
e302a291 | 1103 | entity = ftfont_pattern_entity (match, AREF (spec, FONT_EXTRA_INDEX)); |
42984a74 KH |
1104 | FcPatternDestroy (match); |
1105 | if (! NILP (AREF (spec, FONT_FAMILY_INDEX)) | |
1106 | && NILP (assq_no_quit (AREF (spec, FONT_FAMILY_INDEX), | |
1107 | ftfont_generic_family_list)) | |
1108 | && NILP (Fstring_equal (AREF (spec, FONT_FAMILY_INDEX), | |
1109 | AREF (entity, FONT_FAMILY_INDEX)))) | |
1110 | entity = Qnil; | |
8daf5667 | 1111 | } |
8daf5667 | 1112 | } |
42984a74 | 1113 | FcPatternDestroy (pattern); |
8daf5667 | 1114 | |
678dca3d | 1115 | FONT_ADD_LOG ("ftfont-match", spec, entity); |
8daf5667 KH |
1116 | return entity; |
1117 | } | |
1118 | ||
c2f5bfd6 | 1119 | static Lisp_Object |
971de7fb | 1120 | ftfont_list_family (Lisp_Object frame) |
c2f5bfd6 | 1121 | { |
76d126ec | 1122 | Lisp_Object list = Qnil; |
c2f5bfd6 KH |
1123 | FcPattern *pattern = NULL; |
1124 | FcFontSet *fontset = NULL; | |
1125 | FcObjectSet *objset = NULL; | |
1126 | int i; | |
1127 | ||
1128 | if (! fc_initialized) | |
1129 | { | |
1130 | FcInit (); | |
1131 | fc_initialized = 1; | |
1132 | } | |
1133 | ||
1134 | pattern = FcPatternCreate (); | |
1135 | if (! pattern) | |
1136 | goto finish; | |
706b6995 | 1137 | objset = FcObjectSetBuild (FC_FAMILY, NULL); |
c2f5bfd6 KH |
1138 | if (! objset) |
1139 | goto finish; | |
1140 | fontset = FcFontList (NULL, pattern, objset); | |
1141 | if (! fontset) | |
1142 | goto finish; | |
1143 | ||
c2f5bfd6 KH |
1144 | for (i = 0; i < fontset->nfont; i++) |
1145 | { | |
1146 | FcPattern *pat = fontset->fonts[i]; | |
1147 | FcChar8 *str; | |
1148 | ||
1149 | if (FcPatternGetString (pat, FC_FAMILY, 0, &str) == FcResultMatch) | |
42984a74 | 1150 | list = Fcons (intern ((char *) str), list); |
c2f5bfd6 KH |
1151 | } |
1152 | ||
1153 | finish: | |
1154 | if (objset) FcObjectSetDestroy (objset); | |
1155 | if (fontset) FcFontSetDestroy (fontset); | |
1156 | if (pattern) FcPatternDestroy (pattern); | |
1157 | ||
1158 | return list; | |
1159 | } | |
1160 | ||
1161 | ||
42984a74 | 1162 | static Lisp_Object |
971de7fb | 1163 | ftfont_open (FRAME_PTR f, Lisp_Object entity, int pixel_size) |
c2f5bfd6 KH |
1164 | { |
1165 | struct ftfont_info *ftfont_info; | |
1166 | struct font *font; | |
e302a291 | 1167 | struct ftfont_cache_data *cache_data; |
c2f5bfd6 KH |
1168 | FT_Face ft_face; |
1169 | FT_Size ft_size; | |
1170 | FT_UInt size; | |
49eaafba | 1171 | Lisp_Object val, filename, idx, cache, font_object; |
21988a08 | 1172 | int scalable; |
c2f5bfd6 | 1173 | int spacing; |
42984a74 KH |
1174 | char name[256]; |
1175 | int i, len; | |
1176 | int upEM; | |
c2f5bfd6 | 1177 | |
42984a74 KH |
1178 | val = assq_no_quit (QCfont_entity, AREF (entity, FONT_EXTRA_INDEX)); |
1179 | if (! CONSP (val)) | |
1180 | return Qnil; | |
1181 | val = XCDR (val); | |
d7782105 | 1182 | cache = ftfont_lookup_cache (entity, FTFONT_CACHE_FOR_FACE); |
21988a08 KH |
1183 | if (NILP (cache)) |
1184 | return Qnil; | |
e302a291 | 1185 | filename = XCAR (val); |
49eaafba | 1186 | idx = XCDR (val); |
21988a08 | 1187 | val = XCDR (cache); |
e302a291 KH |
1188 | cache_data = XSAVE_VALUE (XCDR (cache))->pointer; |
1189 | ft_face = cache_data->ft_face; | |
21988a08 | 1190 | if (XSAVE_VALUE (val)->integer > 0) |
c2f5bfd6 | 1191 | { |
21988a08 | 1192 | /* FT_Face in this cache is already used by the different size. */ |
c2f5bfd6 | 1193 | if (FT_New_Size (ft_face, &ft_size) != 0) |
42984a74 | 1194 | return Qnil; |
c2f5bfd6 KH |
1195 | if (FT_Activate_Size (ft_size) != 0) |
1196 | { | |
1197 | FT_Done_Size (ft_size); | |
42984a74 | 1198 | return Qnil; |
c2f5bfd6 | 1199 | } |
21988a08 KH |
1200 | } |
1201 | XSAVE_VALUE (val)->integer++; | |
c2f5bfd6 KH |
1202 | size = XINT (AREF (entity, FONT_SIZE_INDEX)); |
1203 | if (size == 0) | |
1204 | size = pixel_size; | |
1205 | if (FT_Set_Pixel_Sizes (ft_face, size, size) != 0) | |
1206 | { | |
1207 | if (XSAVE_VALUE (val)->integer == 0) | |
1208 | FT_Done_Face (ft_face); | |
42984a74 | 1209 | return Qnil; |
c2f5bfd6 KH |
1210 | } |
1211 | ||
e302a291 | 1212 | font_object = font_make_object (VECSIZE (struct ftfont_info), entity, size); |
42984a74 | 1213 | ASET (font_object, FONT_TYPE_INDEX, Qfreetype); |
42984a74 KH |
1214 | len = font_unparse_xlfd (entity, size, name, 256); |
1215 | if (len > 0) | |
3299c552 | 1216 | ASET (font_object, FONT_NAME_INDEX, make_string (name, len)); |
42984a74 KH |
1217 | len = font_unparse_fcname (entity, size, name, 256); |
1218 | if (len > 0) | |
3299c552 | 1219 | ASET (font_object, FONT_FULLNAME_INDEX, make_string (name, len)); |
42984a74 KH |
1220 | else |
1221 | ASET (font_object, FONT_FULLNAME_INDEX, | |
1222 | AREF (font_object, FONT_NAME_INDEX)); | |
21988a08 | 1223 | ASET (font_object, FONT_FILE_INDEX, filename); |
7d7ad10e | 1224 | ASET (font_object, FONT_FORMAT_INDEX, ftfont_font_format (NULL, filename)); |
42984a74 KH |
1225 | font = XFONT_OBJECT (font_object); |
1226 | ftfont_info = (struct ftfont_info *) font; | |
21988a08 | 1227 | ftfont_info->ft_size = ft_face->size; |
49eaafba | 1228 | ftfont_info->index = XINT (idx); |
0d674a05 | 1229 | #ifdef HAVE_LIBOTF |
de023c40 KH |
1230 | ftfont_info->maybe_otf = ft_face->face_flags & FT_FACE_FLAG_SFNT; |
1231 | ftfont_info->otf = NULL; | |
0d674a05 | 1232 | #endif /* HAVE_LIBOTF */ |
d0db2ec8 KH |
1233 | /* This means that there's no need of transformation. */ |
1234 | ftfont_info->matrix.xx = 0; | |
c2f5bfd6 KH |
1235 | font->pixel_size = size; |
1236 | font->driver = &ftfont_driver; | |
42984a74 | 1237 | font->encoding_charset = font->repertory_charset = -1; |
c9c0c429 | 1238 | |
42984a74 | 1239 | upEM = ft_face->units_per_EM; |
21988a08 KH |
1240 | scalable = (INTEGERP (AREF (entity, FONT_AVGWIDTH_INDEX)) |
1241 | && XINT (AREF (entity, FONT_AVGWIDTH_INDEX)) == 0); | |
42984a74 KH |
1242 | if (scalable) |
1243 | { | |
1244 | font->ascent = ft_face->ascender * size / upEM; | |
1245 | font->descent = - ft_face->descender * size / upEM; | |
1246 | font->height = ft_face->height * size / upEM; | |
1247 | } | |
1248 | else | |
1249 | { | |
1250 | font->ascent = ft_face->size->metrics.ascender >> 6; | |
1251 | font->descent = - ft_face->size->metrics.descender >> 6; | |
1252 | font->height = ft_face->size->metrics.height >> 6; | |
c9c0c429 | 1253 | } |
21988a08 KH |
1254 | if (INTEGERP (AREF (entity, FONT_SPACING_INDEX))) |
1255 | spacing = XINT (AREF (entity, FONT_SPACING_INDEX)); | |
1256 | else | |
c9c0c429 | 1257 | spacing = FC_PROPORTIONAL; |
ea2460a0 KH |
1258 | if (spacing != FC_PROPORTIONAL |
1259 | #ifdef FC_DUAL | |
1260 | && spacing != FC_DUAL | |
1261 | #endif /* FC_DUAL */ | |
1262 | ) | |
42984a74 KH |
1263 | font->min_width = font->average_width = font->space_width |
1264 | = (scalable ? ft_face->max_advance_width * size / upEM | |
1265 | : ft_face->size->metrics.max_advance >> 6); | |
c2f5bfd6 KH |
1266 | else |
1267 | { | |
42984a74 | 1268 | int n; |
c2f5bfd6 | 1269 | |
42984a74 KH |
1270 | font->min_width = font->average_width = font->space_width = 0; |
1271 | for (i = 32, n = 0; i < 127; i++) | |
0c26f026 | 1272 | if (FT_Load_Char (ft_face, i, FT_LOAD_DEFAULT) == 0) |
42984a74 KH |
1273 | { |
1274 | int this_width = ft_face->glyph->metrics.horiAdvance >> 6; | |
1275 | ||
1276 | if (this_width > 0 | |
1277 | && (! font->min_width || font->min_width > this_width)) | |
1278 | font->min_width = this_width; | |
1279 | if (i == 32) | |
1280 | font->space_width = this_width; | |
1281 | font->average_width += this_width; | |
1282 | n++; | |
1283 | } | |
1284 | if (n > 0) | |
1285 | font->average_width /= n; | |
c2f5bfd6 KH |
1286 | } |
1287 | ||
42984a74 KH |
1288 | font->baseline_offset = 0; |
1289 | font->relative_compose = 0; | |
1290 | font->default_ascent = 0; | |
1291 | font->vertical_centering = 0; | |
1292 | if (scalable) | |
1293 | { | |
1294 | font->underline_position = -ft_face->underline_position * size / upEM; | |
0c26f026 | 1295 | font->underline_thickness = ft_face->underline_thickness * size / upEM; |
42984a74 KH |
1296 | } |
1297 | else | |
1298 | { | |
1299 | font->underline_position = -1; | |
1300 | font->underline_thickness = 0; | |
1301 | } | |
c2f5bfd6 | 1302 | |
42984a74 | 1303 | return font_object; |
c2f5bfd6 KH |
1304 | } |
1305 | ||
1306 | static void | |
971de7fb | 1307 | ftfont_close (FRAME_PTR f, struct font *font) |
c2f5bfd6 KH |
1308 | { |
1309 | struct ftfont_info *ftfont_info = (struct ftfont_info *) font; | |
21988a08 | 1310 | Lisp_Object val, cache; |
c2f5bfd6 | 1311 | |
e302a291 | 1312 | val = Fcons (font->props[FONT_FILE_INDEX], make_number (ftfont_info->index)); |
d7782105 | 1313 | cache = ftfont_lookup_cache (val, FTFONT_CACHE_FOR_FACE); |
e302a291 | 1314 | xassert (CONSP (cache)); |
21988a08 | 1315 | val = XCDR (cache); |
c2f5bfd6 KH |
1316 | (XSAVE_VALUE (val)->integer)--; |
1317 | if (XSAVE_VALUE (val)->integer == 0) | |
de023c40 | 1318 | { |
e302a291 | 1319 | struct ftfont_cache_data *cache_data = XSAVE_VALUE (val)->pointer; |
21988a08 | 1320 | |
e302a291 | 1321 | FT_Done_Face (cache_data->ft_face); |
de023c40 KH |
1322 | #ifdef HAVE_LIBOTF |
1323 | if (ftfont_info->otf) | |
1324 | OTF_close (ftfont_info->otf); | |
1325 | #endif | |
e302a291 | 1326 | cache_data->ft_face = NULL; |
de023c40 | 1327 | } |
c2f5bfd6 KH |
1328 | else |
1329 | FT_Done_Size (ftfont_info->ft_size); | |
c2f5bfd6 KH |
1330 | } |
1331 | ||
2a46904e | 1332 | static int |
971de7fb | 1333 | ftfont_has_char (Lisp_Object font, int c) |
c2f5bfd6 | 1334 | { |
d7782105 KH |
1335 | struct charset *cs = NULL; |
1336 | ||
1337 | if (EQ (AREF (font, FONT_ADSTYLE_INDEX), Qja) | |
1338 | && charset_jisx0208 >= 0) | |
1339 | cs = CHARSET_FROM_ID (charset_jisx0208); | |
1340 | else if (EQ (AREF (font, FONT_ADSTYLE_INDEX), Qko) | |
1341 | && charset_ksc5601 >= 0) | |
1342 | cs = CHARSET_FROM_ID (charset_ksc5601); | |
1343 | if (cs) | |
1344 | return (ENCODE_CHAR (cs, c) != CHARSET_INVALID_CODE (cs)); | |
1345 | ||
7179ce7b KH |
1346 | if (FONT_ENTITY_P (font)) |
1347 | { | |
1348 | FcCharSet *charset = ftfont_get_fc_charset (font); | |
c2f5bfd6 | 1349 | |
7179ce7b KH |
1350 | return (FcCharSetHasChar (charset, c) == FcTrue); |
1351 | } | |
1352 | else | |
1353 | { | |
1354 | struct ftfont_info *ftfont_info; | |
1355 | ||
1356 | ftfont_info = (struct ftfont_info *) XFONT_OBJECT (font); | |
1357 | return (FT_Get_Char_Index (ftfont_info->ft_size->face, (FT_ULong) c) | |
1358 | != 0); | |
1359 | } | |
c2f5bfd6 KH |
1360 | } |
1361 | ||
1362 | static unsigned | |
971de7fb | 1363 | ftfont_encode_char (struct font *font, int c) |
c2f5bfd6 KH |
1364 | { |
1365 | struct ftfont_info *ftfont_info = (struct ftfont_info *) font; | |
1366 | FT_Face ft_face = ftfont_info->ft_size->face; | |
1367 | FT_ULong charcode = c; | |
1368 | FT_UInt code = FT_Get_Char_Index (ft_face, charcode); | |
1369 | ||
4cec6061 | 1370 | return (code > 0 ? code : FONT_INVALID_CODE); |
c2f5bfd6 KH |
1371 | } |
1372 | ||
1373 | static int | |
971de7fb | 1374 | ftfont_text_extents (struct font *font, unsigned int *code, int nglyphs, struct font_metrics *metrics) |
c2f5bfd6 KH |
1375 | { |
1376 | struct ftfont_info *ftfont_info = (struct ftfont_info *) font; | |
1377 | FT_Face ft_face = ftfont_info->ft_size->face; | |
1378 | int width = 0; | |
e5d05978 | 1379 | int i, first; |
c2f5bfd6 KH |
1380 | |
1381 | if (ftfont_info->ft_size != ft_face->size) | |
1382 | FT_Activate_Size (ftfont_info->ft_size); | |
1383 | if (metrics) | |
72af86bd | 1384 | memset (metrics, 0, sizeof (struct font_metrics)); |
e5d05978 | 1385 | for (i = 0, first = 1; i < nglyphs; i++) |
c2f5bfd6 KH |
1386 | { |
1387 | if (FT_Load_Glyph (ft_face, code[i], FT_LOAD_DEFAULT) == 0) | |
1388 | { | |
1389 | FT_Glyph_Metrics *m = &ft_face->glyph->metrics; | |
1390 | ||
e5d05978 KH |
1391 | if (first) |
1392 | { | |
1393 | if (metrics) | |
1394 | { | |
1395 | metrics->lbearing = m->horiBearingX >> 6; | |
1396 | metrics->rbearing = (m->horiBearingX + m->width) >> 6; | |
1397 | metrics->ascent = m->horiBearingY >> 6; | |
57d3b93b | 1398 | metrics->descent = (m->height - m->horiBearingY) >> 6; |
e5d05978 KH |
1399 | } |
1400 | first = 0; | |
1401 | } | |
c2f5bfd6 KH |
1402 | if (metrics) |
1403 | { | |
1404 | if (metrics->lbearing > width + (m->horiBearingX >> 6)) | |
1405 | metrics->lbearing = width + (m->horiBearingX >> 6); | |
1406 | if (metrics->rbearing | |
1407 | < width + ((m->horiBearingX + m->width) >> 6)) | |
1408 | metrics->rbearing | |
1409 | = width + ((m->horiBearingX + m->width) >> 6); | |
1410 | if (metrics->ascent < (m->horiBearingY >> 6)) | |
1411 | metrics->ascent = m->horiBearingY >> 6; | |
57d3b93b KH |
1412 | if (metrics->descent > ((m->height - m->horiBearingY) >> 6)) |
1413 | metrics->descent = (m->height - m->horiBearingY) >> 6; | |
c2f5bfd6 KH |
1414 | } |
1415 | width += m->horiAdvance >> 6; | |
1416 | } | |
1417 | else | |
1418 | { | |
42984a74 | 1419 | width += font->space_width; |
c2f5bfd6 KH |
1420 | } |
1421 | } | |
1422 | if (metrics) | |
1423 | metrics->width = width; | |
1424 | ||
1425 | return width; | |
1426 | } | |
1427 | ||
1428 | static int | |
971de7fb | 1429 | ftfont_get_bitmap (struct font *font, unsigned int code, struct font_bitmap *bitmap, int bits_per_pixel) |
c2f5bfd6 KH |
1430 | { |
1431 | struct ftfont_info *ftfont_info = (struct ftfont_info *) font; | |
1432 | FT_Face ft_face = ftfont_info->ft_size->face; | |
1433 | FT_Int32 load_flags = FT_LOAD_RENDER; | |
1434 | ||
1435 | if (ftfont_info->ft_size != ft_face->size) | |
1436 | FT_Activate_Size (ftfont_info->ft_size); | |
1437 | if (bits_per_pixel == 1) | |
1438 | { | |
1439 | #ifdef FT_LOAD_TARGET_MONO | |
1440 | load_flags |= FT_LOAD_TARGET_MONO; | |
1441 | #else | |
1442 | load_flags |= FT_LOAD_MONOCHROME; | |
1443 | #endif | |
1444 | } | |
1445 | else if (bits_per_pixel != 8) | |
1446 | /* We don't support such a rendering. */ | |
1447 | return -1; | |
1448 | ||
1449 | if (FT_Load_Glyph (ft_face, code, load_flags) != 0) | |
1450 | return -1; | |
b51e5112 KH |
1451 | bitmap->bits_per_pixel |
1452 | = (ft_face->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_MONO ? 1 | |
1453 | : ft_face->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_GRAY ? 8 | |
1454 | : ft_face->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_LCD ? 8 | |
1455 | : ft_face->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_LCD_V ? 8 | |
1456 | : -1); | |
1457 | if (bitmap->bits_per_pixel < 0) | |
1458 | /* We don't suport that kind of pixel mode. */ | |
1459 | return -1; | |
c2f5bfd6 KH |
1460 | bitmap->rows = ft_face->glyph->bitmap.rows; |
1461 | bitmap->width = ft_face->glyph->bitmap.width; | |
1462 | bitmap->pitch = ft_face->glyph->bitmap.pitch; | |
1463 | bitmap->buffer = ft_face->glyph->bitmap.buffer; | |
1464 | bitmap->left = ft_face->glyph->bitmap_left; | |
1465 | bitmap->top = ft_face->glyph->bitmap_top; | |
1466 | bitmap->advance = ft_face->glyph->metrics.horiAdvance >> 6; | |
1467 | bitmap->extra = NULL; | |
1468 | ||
1469 | return 0; | |
1470 | } | |
1471 | ||
1472 | static int | |
49eaafba PE |
1473 | ftfont_anchor_point (struct font *font, unsigned int code, int idx, |
1474 | int *x, int *y) | |
c2f5bfd6 KH |
1475 | { |
1476 | struct ftfont_info *ftfont_info = (struct ftfont_info *) font; | |
1477 | FT_Face ft_face = ftfont_info->ft_size->face; | |
1478 | ||
1479 | if (ftfont_info->ft_size != ft_face->size) | |
1480 | FT_Activate_Size (ftfont_info->ft_size); | |
1481 | if (FT_Load_Glyph (ft_face, code, FT_LOAD_DEFAULT) != 0) | |
1482 | return -1; | |
1483 | if (ft_face->glyph->format != FT_GLYPH_FORMAT_OUTLINE) | |
1484 | return -1; | |
49eaafba | 1485 | if (idx >= ft_face->glyph->outline.n_points) |
c2f5bfd6 | 1486 | return -1; |
49eaafba PE |
1487 | *x = ft_face->glyph->outline.points[idx].x; |
1488 | *y = ft_face->glyph->outline.points[idx].y; | |
c2f5bfd6 KH |
1489 | return 0; |
1490 | } | |
1491 | ||
de023c40 | 1492 | #ifdef HAVE_LIBOTF |
e302a291 KH |
1493 | |
1494 | static Lisp_Object | |
d5a3eaaf | 1495 | ftfont_otf_features (OTF_GSUB_GPOS *gsub_gpos) |
e302a291 KH |
1496 | { |
1497 | Lisp_Object scripts, langsyses, features, sym; | |
39356621 | 1498 | int i, j, k, l; |
e302a291 KH |
1499 | |
1500 | for (scripts = Qnil, i = gsub_gpos->ScriptList.ScriptCount - 1; i >= 0; i--) | |
1501 | { | |
1502 | OTF_Script *otf_script = gsub_gpos->ScriptList.Script + i; | |
1503 | ||
1504 | for (langsyses = Qnil, j = otf_script->LangSysCount - 1; j >= -1; j--) | |
1505 | { | |
1506 | OTF_LangSys *otf_langsys; | |
1507 | ||
1508 | if (j >= 0) | |
1509 | otf_langsys = otf_script->LangSys + j; | |
1510 | else if (otf_script->DefaultLangSysOffset) | |
1511 | otf_langsys = &otf_script->DefaultLangSys; | |
1512 | else | |
1513 | break; | |
1514 | ||
1515 | for (features = Qnil, k = otf_langsys->FeatureCount - 1; k >= 0; k--) | |
1516 | { | |
39356621 | 1517 | l = otf_langsys->FeatureIndex[k]; |
064766f2 | 1518 | if (l >= gsub_gpos->FeatureList.FeatureCount) |
39356621 KH |
1519 | continue; |
1520 | OTF_TAG_SYM (sym, gsub_gpos->FeatureList.Feature[l].FeatureTag); | |
e302a291 KH |
1521 | features = Fcons (sym, features); |
1522 | } | |
1523 | if (j >= 0) | |
1524 | OTF_TAG_SYM (sym, otf_script->LangSysRecord[j].LangSysTag); | |
1525 | else | |
1526 | sym = Qnil; | |
1527 | langsyses = Fcons (Fcons (sym, features), langsyses); | |
1528 | } | |
8510724d | 1529 | |
e302a291 KH |
1530 | OTF_TAG_SYM (sym, gsub_gpos->ScriptList.Script[i].ScriptTag); |
1531 | scripts = Fcons (Fcons (sym, langsyses), scripts); | |
1532 | } | |
1533 | return scripts; | |
1534 | ||
1535 | } | |
1536 | ||
1537 | ||
1538 | static Lisp_Object | |
d5a3eaaf | 1539 | ftfont_otf_capability (struct font *font) |
e302a291 KH |
1540 | { |
1541 | struct ftfont_info *ftfont_info = (struct ftfont_info *) font; | |
1542 | OTF *otf = ftfont_get_otf (ftfont_info); | |
1543 | Lisp_Object gsub_gpos; | |
1544 | ||
1545 | if (! otf) | |
1546 | return Qnil; | |
1547 | gsub_gpos = Fcons (Qnil, Qnil); | |
064766f2 KH |
1548 | if (OTF_get_table (otf, "GSUB") == 0 |
1549 | && otf->gsub->FeatureList.FeatureCount > 0) | |
e302a291 | 1550 | XSETCAR (gsub_gpos, ftfont_otf_features (otf->gsub)); |
064766f2 KH |
1551 | if (OTF_get_table (otf, "GPOS") == 0 |
1552 | && otf->gpos->FeatureList.FeatureCount > 0) | |
e302a291 KH |
1553 | XSETCDR (gsub_gpos, ftfont_otf_features (otf->gpos)); |
1554 | return gsub_gpos; | |
1555 | } | |
1556 | ||
de023c40 KH |
1557 | #ifdef HAVE_M17N_FLT |
1558 | ||
c90ca7b7 KH |
1559 | #if (((LIBOTF_MAJOR_VERSION > 1) || (LIBOTF_RELEASE_NUMBER >= 10)) \ |
1560 | && ((M17NLIB_MAJOR_VERSION > 1) || (M17NLIB_MINOR_VERSION >= 6))) | |
c4170e32 KH |
1561 | /* We can use the new feature of libotf and m17n-flt to handle the |
1562 | character encoding scheme introduced in Unicode 5.1 and 5.2 for | |
1563 | some Agian scripts. */ | |
1564 | #define M17N_FLT_USE_NEW_FEATURE | |
1565 | #endif | |
1566 | ||
de023c40 KH |
1567 | struct MFLTFontFT |
1568 | { | |
1569 | MFLTFont flt_font; | |
1570 | struct font *font; | |
1571 | FT_Face ft_face; | |
1572 | OTF *otf; | |
d0db2ec8 | 1573 | FT_Matrix *matrix; |
de023c40 KH |
1574 | }; |
1575 | ||
1576 | static int | |
d5a3eaaf AS |
1577 | ftfont_get_glyph_id (MFLTFont *font, MFLTGlyphString *gstring, |
1578 | int from, int to) | |
de023c40 KH |
1579 | { |
1580 | struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font; | |
1581 | FT_Face ft_face = flt_font_ft->ft_face; | |
1582 | MFLTGlyph *g; | |
1583 | ||
1584 | for (g = gstring->glyphs + from; from < to; g++, from++) | |
1585 | if (! g->encoded) | |
1586 | { | |
1587 | FT_UInt code = FT_Get_Char_Index (ft_face, g->code); | |
1588 | ||
1589 | g->code = code > 0 ? code : FONT_INVALID_CODE; | |
1590 | g->encoded = 1; | |
1591 | } | |
1592 | return 0; | |
1593 | } | |
1594 | ||
d0db2ec8 KH |
1595 | /* Operators for 26.6 fixed fractional pixel format */ |
1596 | ||
1597 | #define FLOOR(x) ((x) & -64) | |
1598 | #define CEIL(x) (((x)+63) & -64) | |
1599 | #define ROUND(x) (((x)+32) & -64) | |
1600 | ||
de023c40 | 1601 | static int |
d5a3eaaf AS |
1602 | ftfont_get_metrics (MFLTFont *font, MFLTGlyphString *gstring, |
1603 | int from, int to) | |
de023c40 KH |
1604 | { |
1605 | struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font; | |
1606 | FT_Face ft_face = flt_font_ft->ft_face; | |
1607 | MFLTGlyph *g; | |
1608 | ||
1609 | for (g = gstring->glyphs + from; from < to; g++, from++) | |
1610 | if (! g->measured) | |
1611 | { | |
1612 | if (g->code != FONT_INVALID_CODE) | |
1613 | { | |
1614 | FT_Glyph_Metrics *m; | |
d0db2ec8 | 1615 | int lbearing, rbearing, ascent, descent, xadv; |
de023c40 KH |
1616 | |
1617 | if (FT_Load_Glyph (ft_face, g->code, FT_LOAD_DEFAULT) != 0) | |
1618 | abort (); | |
1619 | m = &ft_face->glyph->metrics; | |
d0db2ec8 KH |
1620 | if (flt_font_ft->matrix) |
1621 | { | |
1622 | FT_Vector v[4]; | |
1623 | int i; | |
1624 | ||
1625 | v[0].x = v[1].x = m->horiBearingX; | |
1626 | v[2].x = v[3].x = m->horiBearingX + m->width; | |
1627 | v[0].y = v[2].y = m->horiBearingY; | |
1628 | v[1].y = v[3].y = m->horiBearingY - m->height; | |
1629 | for (i = 0; i < 4; i++) | |
1630 | FT_Vector_Transform (v + i, flt_font_ft->matrix); | |
1631 | g->lbearing = v[0].x < v[1].x ? FLOOR (v[0].x) : FLOOR (v[1].x); | |
1632 | g->rbearing = v[2].x > v[3].x ? CEIL (v[2].x) : CEIL (v[3].x); | |
1633 | g->ascent = v[0].y > v[2].y ? CEIL (v[0].y) : CEIL (v[2].y); | |
1634 | g->descent = v[1].y < v[3].y ? - FLOOR (v[1].y) : - FLOOR (v[3].y); | |
1635 | } | |
1636 | else | |
1637 | { | |
1638 | g->lbearing = FLOOR (m->horiBearingX); | |
1639 | g->rbearing = CEIL (m->horiBearingX + m->width); | |
1640 | g->ascent = CEIL (m->horiBearingY); | |
1641 | g->descent = - FLOOR (m->horiBearingY - m->height); | |
1642 | } | |
1643 | g->xadv = ROUND (ft_face->glyph->advance.x); | |
de023c40 KH |
1644 | } |
1645 | else | |
1646 | { | |
1647 | g->lbearing = 0; | |
42984a74 | 1648 | g->rbearing = g->xadv = flt_font_ft->font->space_width << 6; |
de023c40 KH |
1649 | g->ascent = flt_font_ft->font->ascent << 6; |
1650 | g->descent = flt_font_ft->font->descent << 6; | |
1651 | } | |
1652 | g->yadv = 0; | |
1653 | g->measured = 1; | |
1654 | } | |
1655 | return 0; | |
1656 | } | |
1657 | ||
2a46904e | 1658 | static int |
de023c40 KH |
1659 | ftfont_check_otf (MFLTFont *font, MFLTOtfSpec *spec) |
1660 | { | |
78a21772 KH |
1661 | #define FEATURE_NONE(IDX) (! spec->features[IDX]) |
1662 | ||
1663 | #define FEATURE_ANY(IDX) \ | |
1664 | (spec->features[IDX] \ | |
1665 | && spec->features[IDX][0] == 0xFFFFFFFF && spec->features[IDX][1] == 0) | |
1666 | ||
de023c40 KH |
1667 | struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font; |
1668 | OTF *otf = flt_font_ft->otf; | |
1669 | OTF_Tag *tags; | |
1670 | int i, n, negative; | |
1671 | ||
78a21772 | 1672 | if (FEATURE_ANY (0) && FEATURE_ANY (1)) |
fa3f6039 KH |
1673 | /* Return 1 iff any of GSUB or GPOS support the script (and language). */ |
1674 | return (otf | |
1675 | && (OTF_check_features (otf, 0, spec->script, spec->langsys, | |
1676 | NULL, 0) > 0 | |
1677 | || OTF_check_features (otf, 1, spec->script, spec->langsys, | |
1678 | NULL, 0) > 0)); | |
1679 | ||
de023c40 | 1680 | for (i = 0; i < 2; i++) |
78a21772 | 1681 | if (! FEATURE_ANY (i)) |
fa3f6039 | 1682 | { |
78a21772 | 1683 | if (FEATURE_NONE (i)) |
fa3f6039 | 1684 | { |
78a21772 KH |
1685 | if (otf |
1686 | && OTF_check_features (otf, i == 0, spec->script, spec->langsys, | |
1687 | NULL, 0) > 0) | |
1688 | return 0; | |
1689 | continue; | |
fa3f6039 KH |
1690 | } |
1691 | if (spec->features[i][0] == 0xFFFFFFFF) | |
1692 | { | |
78a21772 KH |
1693 | if (! otf |
1694 | || OTF_check_features (otf, i == 0, spec->script, spec->langsys, | |
1695 | NULL, 0) <= 0) | |
fa3f6039 KH |
1696 | continue; |
1697 | } | |
78a21772 | 1698 | else if (! otf) |
fa3f6039 | 1699 | return 0; |
fa3f6039 KH |
1700 | for (n = 1; spec->features[i][n]; n++); |
1701 | tags = alloca (sizeof (OTF_Tag) * n); | |
1702 | for (n = 0, negative = 0; spec->features[i][n]; n++) | |
1703 | { | |
1704 | if (spec->features[i][n] == 0xFFFFFFFF) | |
1705 | negative = 1; | |
1706 | else if (negative) | |
1707 | tags[n - 1] = spec->features[i][n] | 0x80000000; | |
1708 | else | |
1709 | tags[n] = spec->features[i][n]; | |
1710 | } | |
c4170e32 | 1711 | #ifdef M17N_FLT_USE_NEW_FEATURE |
fa3f6039 KH |
1712 | if (OTF_check_features (otf, i == 0, spec->script, spec->langsys, |
1713 | tags, n - negative) != 1) | |
1714 | return 0; | |
c4170e32 | 1715 | #else /* not M17N_FLT_USE_NEW_FEATURE */ |
fa3f6039 KH |
1716 | if (n - negative > 0 |
1717 | && OTF_check_features (otf, i == 0, spec->script, spec->langsys, | |
1718 | tags, n - negative) != 1) | |
1719 | return 0; | |
c4170e32 | 1720 | #endif /* not M17N_FLT_USE_NEW_FEATURE */ |
fa3f6039 | 1721 | } |
de023c40 | 1722 | return 1; |
78a21772 KH |
1723 | #undef FEATURE_NONE |
1724 | #undef FEATURE_ANY | |
de023c40 KH |
1725 | } |
1726 | ||
1727 | #define DEVICE_DELTA(table, size) \ | |
1728 | (((size) >= (table).StartSize && (size) <= (table).EndSize) \ | |
1729 | ? (table).DeltaValue[(size) - (table).StartSize] << 6 \ | |
1730 | : 0) | |
1731 | ||
1732 | static void | |
1733 | adjust_anchor (FT_Face ft_face, OTF_Anchor *anchor, | |
1734 | unsigned code, int x_ppem, int y_ppem, int *x, int *y) | |
1735 | { | |
1736 | if (anchor->AnchorFormat == 2) | |
1737 | { | |
1738 | FT_Outline *outline; | |
1739 | int ap = anchor->f.f1.AnchorPoint; | |
1740 | ||
1741 | FT_Load_Glyph (ft_face, (FT_UInt) code, FT_LOAD_MONOCHROME); | |
1742 | outline = &ft_face->glyph->outline; | |
1743 | if (ap < outline->n_points) | |
1744 | { | |
1745 | *x = outline->points[ap].x << 6; | |
1746 | *y = outline->points[ap].y << 6; | |
1747 | } | |
1748 | } | |
1749 | else if (anchor->AnchorFormat == 3) | |
1750 | { | |
d90bfd1c KH |
1751 | if (anchor->f.f2.XDeviceTable.offset |
1752 | && anchor->f.f2.XDeviceTable.DeltaValue) | |
de023c40 | 1753 | *x += DEVICE_DELTA (anchor->f.f2.XDeviceTable, x_ppem); |
d90bfd1c KH |
1754 | if (anchor->f.f2.YDeviceTable.offset |
1755 | && anchor->f.f2.YDeviceTable.DeltaValue) | |
de023c40 KH |
1756 | *y += DEVICE_DELTA (anchor->f.f2.YDeviceTable, y_ppem); |
1757 | } | |
1758 | } | |
1759 | ||
1760 | static OTF_GlyphString otf_gstring; | |
1761 | ||
2b33f1ef KH |
1762 | static void |
1763 | setup_otf_gstring (int size) | |
1764 | { | |
1765 | if (otf_gstring.size == 0) | |
1766 | { | |
c6da7cd2 | 1767 | otf_gstring.glyphs = (OTF_Glyph *) xmalloc (sizeof (OTF_Glyph) * size); |
2b33f1ef KH |
1768 | otf_gstring.size = size; |
1769 | } | |
1770 | else if (otf_gstring.size < size) | |
1771 | { | |
c6da7cd2 JM |
1772 | otf_gstring.glyphs = xrealloc (otf_gstring.glyphs, |
1773 | sizeof (OTF_Glyph) * size); | |
2b33f1ef KH |
1774 | otf_gstring.size = size; |
1775 | } | |
1776 | otf_gstring.used = size; | |
1777 | memset (otf_gstring.glyphs, 0, sizeof (OTF_Glyph) * size); | |
1778 | } | |
1779 | ||
c4170e32 KH |
1780 | #ifdef M17N_FLT_USE_NEW_FEATURE |
1781 | ||
1782 | /* Pack 32-bit OTF tag (0x7F7F7F7F) into 28-bit (0x0FFFFFFF). */ | |
1783 | #define PACK_OTF_TAG(TAG) \ | |
1784 | ((((TAG) & 0x7F000000) >> 3) \ | |
1785 | | (((TAG) & 0x7F0000) >> 2) \ | |
1786 | | (((TAG) & 0x7F00) >> 1) \ | |
1787 | | ((TAG) & 0x7F)) | |
1788 | ||
1789 | /* Assuming that FONT is an OpenType font, apply OpenType features | |
1790 | specified in SPEC on glyphs between FROM and TO of IN, and record | |
1791 | the lastly applied feature in each glyph of IN. If OUT is not | |
1792 | NULL, append the resulting glyphs to OUT while storing glyph | |
1793 | position adjustment information in ADJUSTMENT. */ | |
1794 | ||
1795 | static int | |
ef1b0ba7 SM |
1796 | ftfont_drive_otf (MFLTFont *font, |
1797 | MFLTOtfSpec *spec, | |
1798 | MFLTGlyphString *in, | |
1799 | int from, | |
1800 | int to, | |
1801 | MFLTGlyphString *out, | |
1802 | MFLTGlyphAdjustment *adjustment) | |
c4170e32 KH |
1803 | { |
1804 | struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font; | |
1805 | FT_Face ft_face = flt_font_ft->ft_face; | |
1806 | OTF *otf = flt_font_ft->otf; | |
1807 | int len = to - from; | |
1808 | int i, j, gidx; | |
1809 | OTF_Glyph *otfg; | |
1810 | char script[5], *langsys = NULL; | |
1811 | char *gsub_features = NULL, *gpos_features = NULL; | |
1812 | OTF_Feature *features; | |
1813 | ||
1814 | if (len == 0) | |
1815 | return from; | |
1816 | OTF_tag_name (spec->script, script); | |
1817 | if (spec->langsys) | |
1818 | { | |
1819 | langsys = alloca (5); | |
1820 | OTF_tag_name (spec->langsys, langsys); | |
1821 | } | |
1822 | for (i = 0; i < 2; i++) | |
1823 | { | |
1824 | char *p; | |
1825 | ||
1826 | if (spec->features[i] && spec->features[i][1] != 0xFFFFFFFF) | |
1827 | { | |
1828 | for (j = 0; spec->features[i][j]; j++); | |
1829 | if (i == 0) | |
1830 | p = gsub_features = alloca (6 * j); | |
1831 | else | |
1832 | p = gpos_features = alloca (6 * j); | |
1833 | for (j = 0; spec->features[i][j]; j++) | |
1834 | { | |
1835 | if (spec->features[i][j] == 0xFFFFFFFF) | |
1836 | *p++ = '*', *p++ = ','; | |
1837 | else | |
1838 | { | |
1839 | OTF_tag_name (spec->features[i][j], p); | |
1840 | p[4] = ','; | |
1841 | p += 5; | |
1842 | } | |
1843 | } | |
1844 | *--p = '\0'; | |
1845 | } | |
1846 | } | |
1847 | ||
1848 | setup_otf_gstring (len); | |
1849 | for (i = 0; i < len; i++) | |
1850 | { | |
1851 | otf_gstring.glyphs[i].c = in->glyphs[from + i].c; | |
1852 | otf_gstring.glyphs[i].glyph_id = in->glyphs[from + i].code; | |
1853 | } | |
1854 | ||
1855 | OTF_drive_gdef (otf, &otf_gstring); | |
1856 | gidx = out ? out->used : from; | |
1857 | ||
1858 | if (gsub_features && out) | |
1859 | { | |
1860 | if (OTF_drive_gsub_with_log (otf, &otf_gstring, script, langsys, | |
1861 | gsub_features) < 0) | |
1862 | goto simple_copy; | |
1863 | if (out->allocated < out->used + otf_gstring.used) | |
1864 | return -2; | |
1865 | features = otf->gsub->FeatureList.Feature; | |
1866 | for (i = 0, otfg = otf_gstring.glyphs; i < otf_gstring.used; ) | |
1867 | { | |
1868 | MFLTGlyph *g; | |
1869 | int min_from, max_to; | |
1870 | int j; | |
1871 | int feature_idx = otfg->positioning_type >> 4; | |
1872 | ||
1873 | g = out->glyphs + out->used; | |
1874 | *g = in->glyphs[from + otfg->f.index.from]; | |
1875 | if (g->code != otfg->glyph_id) | |
1876 | { | |
1877 | g->c = 0; | |
1878 | g->code = otfg->glyph_id; | |
1879 | g->measured = 0; | |
1880 | } | |
1881 | out->used++; | |
1882 | min_from = g->from; | |
1883 | max_to = g->to; | |
1884 | if (otfg->f.index.from < otfg->f.index.to) | |
1885 | { | |
1886 | /* OTFG substitutes multiple glyphs in IN. */ | |
1887 | for (j = from + otfg->f.index.from + 1; | |
1888 | j <= from + otfg->f.index.to; j++) | |
1889 | { | |
1890 | if (min_from > in->glyphs[j].from) | |
1891 | min_from = in->glyphs[j].from; | |
1892 | if (max_to < in->glyphs[j].to) | |
1893 | max_to = in->glyphs[j].to; | |
1894 | } | |
1895 | g->from = min_from; | |
1896 | g->to = max_to; | |
1897 | } | |
1898 | if (feature_idx) | |
1899 | { | |
1900 | unsigned int tag = features[feature_idx - 1].FeatureTag; | |
1901 | tag = PACK_OTF_TAG (tag); | |
1902 | g->internal = (g->internal & ~0x1FFFFFFF) | tag; | |
1903 | } | |
1904 | for (i++, otfg++; (i < otf_gstring.used | |
1905 | && otfg->f.index.from == otfg[-1].f.index.from); | |
1906 | i++, otfg++) | |
1907 | { | |
1908 | g = out->glyphs + out->used; | |
1909 | *g = in->glyphs[from + otfg->f.index.to]; | |
1910 | if (g->code != otfg->glyph_id) | |
1911 | { | |
1912 | g->c = 0; | |
1913 | g->code = otfg->glyph_id; | |
1914 | g->measured = 0; | |
1915 | } | |
1916 | feature_idx = otfg->positioning_type >> 4; | |
1917 | if (feature_idx) | |
1918 | { | |
1919 | unsigned int tag = features[feature_idx - 1].FeatureTag; | |
1920 | tag = PACK_OTF_TAG (tag); | |
1921 | g->internal = (g->internal & ~0x1FFFFFFF) | tag; | |
1922 | } | |
1923 | out->used++; | |
1924 | } | |
1925 | } | |
1926 | } | |
1927 | else if (gsub_features) | |
1928 | { | |
1929 | /* Just for checking which features will be applied. */ | |
1930 | if (OTF_drive_gsub_with_log (otf, &otf_gstring, script, langsys, | |
1931 | gsub_features) < 0) | |
1932 | goto simple_copy; | |
1933 | features = otf->gsub->FeatureList.Feature; | |
1934 | for (i = 0, otfg = otf_gstring.glyphs; i < otf_gstring.used; i++, | |
1935 | otfg++) | |
1936 | { | |
1937 | int feature_idx = otfg->positioning_type >> 4; | |
1938 | ||
1939 | if (feature_idx) | |
1940 | { | |
1941 | unsigned int tag = features[feature_idx - 1].FeatureTag; | |
1942 | tag = PACK_OTF_TAG (tag); | |
1943 | for (j = otfg->f.index.from; j <= otfg->f.index.to; j++) | |
1944 | { | |
1945 | MFLTGlyph *g = in->glyphs + (from + j); | |
1946 | g->internal = (g->internal & ~0x1FFFFFFF) | tag; | |
1947 | } | |
1948 | } | |
1949 | } | |
1950 | } | |
1951 | else if (out) | |
1952 | { | |
1953 | if (out->allocated < out->used + len) | |
1954 | return -2; | |
1955 | for (i = 0; i < len; i++) | |
1956 | out->glyphs[out->used++] = in->glyphs[from + i]; | |
1957 | } | |
1958 | ||
1959 | if (gpos_features && out) | |
1960 | { | |
1961 | MFLTGlyph *base = NULL, *mark = NULL, *g; | |
1962 | int x_ppem, y_ppem, x_scale, y_scale; | |
1963 | ||
1964 | if (OTF_drive_gpos_with_log (otf, &otf_gstring, script, langsys, | |
1965 | gpos_features) < 0) | |
1966 | return to; | |
1967 | features = otf->gpos->FeatureList.Feature; | |
1968 | x_ppem = ft_face->size->metrics.x_ppem; | |
1969 | y_ppem = ft_face->size->metrics.y_ppem; | |
1970 | x_scale = ft_face->size->metrics.x_scale; | |
1971 | y_scale = ft_face->size->metrics.y_scale; | |
1972 | ||
1973 | for (i = 0, otfg = otf_gstring.glyphs, g = out->glyphs + gidx; | |
1974 | i < otf_gstring.used; i++, otfg++, g++) | |
1975 | { | |
1976 | MFLTGlyph *prev; | |
1977 | int feature_idx = otfg->positioning_type >> 4; | |
1978 | ||
1979 | if (feature_idx) | |
1980 | { | |
1981 | unsigned int tag = features[feature_idx - 1].FeatureTag; | |
1982 | tag = PACK_OTF_TAG (tag); | |
1983 | g->internal = (g->internal & ~0x1FFFFFFF) | tag; | |
1984 | } | |
1985 | ||
1986 | if (! otfg->glyph_id) | |
1987 | continue; | |
1988 | switch (otfg->positioning_type & 0xF) | |
1989 | { | |
1990 | case 0: | |
1991 | break; | |
1992 | case 1: /* Single */ | |
1993 | case 2: /* Pair */ | |
1994 | { | |
1995 | int format = otfg->f.f1.format; | |
1996 | ||
1997 | if (format & OTF_XPlacement) | |
1998 | adjustment[i].xoff | |
1999 | = otfg->f.f1.value->XPlacement * x_scale / 0x10000; | |
2000 | if (format & OTF_XPlaDevice) | |
2001 | adjustment[i].xoff | |
2002 | += DEVICE_DELTA (otfg->f.f1.value->XPlaDevice, x_ppem); | |
2003 | if (format & OTF_YPlacement) | |
2004 | adjustment[i].yoff | |
2005 | = - (otfg->f.f1.value->YPlacement * y_scale / 0x10000); | |
2006 | if (format & OTF_YPlaDevice) | |
2007 | adjustment[i].yoff | |
2008 | -= DEVICE_DELTA (otfg->f.f1.value->YPlaDevice, y_ppem); | |
2009 | if (format & OTF_XAdvance) | |
2010 | adjustment[i].xadv | |
2011 | += otfg->f.f1.value->XAdvance * x_scale / 0x10000; | |
2012 | if (format & OTF_XAdvDevice) | |
2013 | adjustment[i].xadv | |
2014 | += DEVICE_DELTA (otfg->f.f1.value->XAdvDevice, x_ppem); | |
2015 | if (format & OTF_YAdvance) | |
2016 | adjustment[i].yadv | |
2017 | += otfg->f.f1.value->YAdvance * y_scale / 0x10000; | |
2018 | if (format & OTF_YAdvDevice) | |
2019 | adjustment[i].yadv | |
2020 | += DEVICE_DELTA (otfg->f.f1.value->YAdvDevice, y_ppem); | |
2021 | adjustment[i].set = 1; | |
2022 | } | |
2023 | break; | |
2024 | case 3: /* Cursive */ | |
2025 | /* Not yet supported. */ | |
2026 | break; | |
2027 | case 4: /* Mark-to-Base */ | |
2028 | case 5: /* Mark-to-Ligature */ | |
2029 | if (! base) | |
2030 | break; | |
2031 | prev = base; | |
2032 | goto label_adjust_anchor; | |
2033 | default: /* i.e. case 6 Mark-to-Mark */ | |
2034 | if (! mark) | |
2035 | break; | |
2036 | prev = mark; | |
2037 | ||
2038 | label_adjust_anchor: | |
2039 | { | |
2040 | int base_x, base_y, mark_x, mark_y; | |
2041 | int this_from, this_to; | |
2042 | ||
2043 | base_x = otfg->f.f4.base_anchor->XCoordinate * x_scale / 0x10000; | |
2044 | base_y = otfg->f.f4.base_anchor->YCoordinate * y_scale / 0x10000; | |
2045 | mark_x = otfg->f.f4.mark_anchor->XCoordinate * x_scale / 0x10000; | |
2046 | mark_y = otfg->f.f4.mark_anchor->YCoordinate * y_scale / 0x10000; | |
2047 | ||
2048 | if (otfg->f.f4.base_anchor->AnchorFormat != 1) | |
2049 | adjust_anchor (ft_face, otfg->f.f4.base_anchor, | |
2050 | prev->code, x_ppem, y_ppem, &base_x, &base_y); | |
2051 | if (otfg->f.f4.mark_anchor->AnchorFormat != 1) | |
2052 | adjust_anchor (ft_face, otfg->f.f4.mark_anchor, g->code, | |
2053 | x_ppem, y_ppem, &mark_x, &mark_y); | |
2054 | adjustment[i].xoff = (base_x - mark_x); | |
2055 | adjustment[i].yoff = - (base_y - mark_y); | |
2056 | adjustment[i].back = (g - prev); | |
2057 | adjustment[i].xadv = 0; | |
2058 | adjustment[i].advance_is_absolute = 1; | |
2059 | adjustment[i].set = 1; | |
2060 | this_from = g->from; | |
2061 | this_to = g->to; | |
2062 | for (j = 0; prev + j < g; j++) | |
2063 | { | |
2064 | if (this_from > prev[j].from) | |
2065 | this_from = prev[j].from; | |
2066 | if (this_to < prev[j].to) | |
2067 | this_to = prev[j].to; | |
2068 | } | |
2069 | for (; prev <= g; prev++) | |
2070 | { | |
2071 | prev->from = this_from; | |
2072 | prev->to = this_to; | |
2073 | } | |
2074 | } | |
2075 | } | |
2076 | if (otfg->GlyphClass == OTF_GlyphClass0) | |
2077 | base = mark = g; | |
2078 | else if (otfg->GlyphClass == OTF_GlyphClassMark) | |
2079 | mark = g; | |
2080 | else | |
2081 | base = g; | |
2082 | } | |
2083 | } | |
2084 | else if (gpos_features) | |
2085 | { | |
2086 | if (OTF_drive_gpos_with_log (otf, &otf_gstring, script, langsys, | |
2087 | gpos_features) < 0) | |
2088 | return to; | |
2089 | features = otf->gpos->FeatureList.Feature; | |
2090 | for (i = 0, otfg = otf_gstring.glyphs; i < otf_gstring.used; | |
2091 | i++, otfg++) | |
2092 | if (otfg->positioning_type & 0xF) | |
2093 | { | |
2094 | int feature_idx = otfg->positioning_type >> 4; | |
2095 | ||
2096 | if (feature_idx) | |
2097 | { | |
2098 | unsigned int tag = features[feature_idx - 1].FeatureTag; | |
2099 | tag = PACK_OTF_TAG (tag); | |
2100 | for (j = otfg->f.index.from; j <= otfg->f.index.to; j++) | |
2101 | { | |
2102 | MFLTGlyph *g = in->glyphs + (from + j); | |
2103 | g->internal = (g->internal & ~0x1FFFFFFF) | tag; | |
2104 | } | |
2105 | } | |
2106 | } | |
2107 | } | |
2108 | return to; | |
2109 | ||
2110 | simple_copy: | |
2111 | if (! out) | |
2112 | return to; | |
2113 | if (out->allocated < out->used + len) | |
2114 | return -2; | |
2115 | font->get_metrics (font, in, from, to); | |
2116 | memcpy (out->glyphs + out->used, in->glyphs + from, | |
2117 | sizeof (MFLTGlyph) * len); | |
2118 | out->used += len; | |
2119 | return to; | |
2120 | } | |
2121 | ||
9fa82824 | 2122 | static int |
c4170e32 KH |
2123 | ftfont_try_otf (MFLTFont *font, MFLTOtfSpec *spec, |
2124 | MFLTGlyphString *in, int from, int to) | |
2125 | { | |
2126 | return ftfont_drive_otf (font, spec, in, from, to, NULL, NULL); | |
2127 | } | |
2128 | ||
2129 | #else /* not M17N_FLT_USE_NEW_FEATURE */ | |
2b33f1ef | 2130 | |
2a46904e | 2131 | static int |
d5a3eaaf AS |
2132 | ftfont_drive_otf (MFLTFont *font, MFLTOtfSpec *spec, MFLTGlyphString *in, |
2133 | int from, int to, | |
2134 | MFLTGlyphString *out, MFLTGlyphAdjustment *adjustment) | |
de023c40 KH |
2135 | { |
2136 | struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font; | |
2137 | FT_Face ft_face = flt_font_ft->ft_face; | |
2138 | OTF *otf = flt_font_ft->otf; | |
2139 | int len = to - from; | |
2140 | int i, j, gidx; | |
2141 | OTF_Glyph *otfg; | |
2142 | char script[5], *langsys = NULL; | |
2143 | char *gsub_features = NULL, *gpos_features = NULL; | |
2144 | ||
2145 | if (len == 0) | |
2146 | return from; | |
2147 | OTF_tag_name (spec->script, script); | |
2148 | if (spec->langsys) | |
2149 | { | |
2150 | langsys = alloca (5); | |
2151 | OTF_tag_name (spec->langsys, langsys); | |
2152 | } | |
2153 | for (i = 0; i < 2; i++) | |
2154 | { | |
2155 | char *p; | |
2156 | ||
2157 | if (spec->features[i] && spec->features[i][1] != 0xFFFFFFFF) | |
2158 | { | |
2159 | for (j = 0; spec->features[i][j]; j++); | |
2160 | if (i == 0) | |
2161 | p = gsub_features = alloca (6 * j); | |
2162 | else | |
2163 | p = gpos_features = alloca (6 * j); | |
2164 | for (j = 0; spec->features[i][j]; j++) | |
2165 | { | |
2166 | if (spec->features[i][j] == 0xFFFFFFFF) | |
2167 | *p++ = '*', *p++ = ','; | |
2168 | else | |
2169 | { | |
2170 | OTF_tag_name (spec->features[i][j], p); | |
2171 | p[4] = ','; | |
2172 | p += 5; | |
2173 | } | |
2174 | } | |
2175 | *--p = '\0'; | |
2176 | } | |
2177 | } | |
2178 | ||
2b33f1ef | 2179 | setup_otf_gstring (len); |
de023c40 KH |
2180 | for (i = 0; i < len; i++) |
2181 | { | |
2182 | otf_gstring.glyphs[i].c = in->glyphs[from + i].c; | |
2183 | otf_gstring.glyphs[i].glyph_id = in->glyphs[from + i].code; | |
2184 | } | |
2185 | ||
2186 | OTF_drive_gdef (otf, &otf_gstring); | |
2187 | gidx = out->used; | |
2188 | ||
2189 | if (gsub_features) | |
2190 | { | |
2191 | if (OTF_drive_gsub (otf, &otf_gstring, script, langsys, gsub_features) | |
2192 | < 0) | |
2193 | goto simple_copy; | |
2194 | if (out->allocated < out->used + otf_gstring.used) | |
2195 | return -2; | |
7d2fd545 | 2196 | for (i = 0, otfg = otf_gstring.glyphs; i < otf_gstring.used; ) |
de023c40 | 2197 | { |
7d2fd545 KH |
2198 | MFLTGlyph *g; |
2199 | int min_from, max_to; | |
de023c40 KH |
2200 | int j; |
2201 | ||
7d2fd545 | 2202 | g = out->glyphs + out->used; |
de023c40 | 2203 | *g = in->glyphs[from + otfg->f.index.from]; |
de023c40 KH |
2204 | if (g->code != otfg->glyph_id) |
2205 | { | |
7d2fd545 | 2206 | g->c = 0; |
de023c40 KH |
2207 | g->code = otfg->glyph_id; |
2208 | g->measured = 0; | |
2209 | } | |
2210 | out->used++; | |
7d2fd545 KH |
2211 | min_from = g->from; |
2212 | max_to = g->to; | |
2213 | if (otfg->f.index.from < otfg->f.index.to) | |
2214 | { | |
2215 | /* OTFG substitutes multiple glyphs in IN. */ | |
2216 | for (j = from + otfg->f.index.from + 1; | |
2217 | j <= from + otfg->f.index.to; j++) | |
2218 | { | |
2219 | if (min_from > in->glyphs[j].from) | |
2220 | min_from = in->glyphs[j].from; | |
2221 | if (max_to < in->glyphs[j].to) | |
2222 | max_to = in->glyphs[j].to; | |
2223 | } | |
2224 | g->from = min_from; | |
2225 | g->to = max_to; | |
2226 | } | |
2227 | for (i++, otfg++; (i < otf_gstring.used | |
2228 | && otfg->f.index.from == otfg[-1].f.index.from); | |
2229 | i++, otfg++) | |
2230 | { | |
2231 | g = out->glyphs + out->used; | |
2232 | *g = in->glyphs[from + otfg->f.index.to]; | |
2233 | if (g->code != otfg->glyph_id) | |
2234 | { | |
2235 | g->c = 0; | |
2236 | g->code = otfg->glyph_id; | |
2237 | g->measured = 0; | |
2238 | } | |
2239 | out->used++; | |
2240 | } | |
de023c40 KH |
2241 | } |
2242 | } | |
2243 | else | |
2244 | { | |
2245 | if (out->allocated < out->used + len) | |
2246 | return -2; | |
2247 | for (i = 0; i < len; i++) | |
2248 | out->glyphs[out->used++] = in->glyphs[from + i]; | |
2249 | } | |
2250 | ||
2251 | if (gpos_features) | |
2252 | { | |
2253 | MFLTGlyph *base = NULL, *mark = NULL, *g; | |
2254 | int x_ppem, y_ppem, x_scale, y_scale; | |
2255 | ||
2256 | if (OTF_drive_gpos (otf, &otf_gstring, script, langsys, gpos_features) | |
2257 | < 0) | |
2258 | return to; | |
2259 | ||
2260 | x_ppem = ft_face->size->metrics.x_ppem; | |
2261 | y_ppem = ft_face->size->metrics.y_ppem; | |
2262 | x_scale = ft_face->size->metrics.x_scale; | |
2263 | y_scale = ft_face->size->metrics.y_scale; | |
2264 | ||
2265 | for (i = 0, otfg = otf_gstring.glyphs, g = out->glyphs + gidx; | |
2266 | i < otf_gstring.used; i++, otfg++, g++) | |
2267 | { | |
2268 | MFLTGlyph *prev; | |
2269 | ||
2270 | if (! otfg->glyph_id) | |
2271 | continue; | |
2272 | switch (otfg->positioning_type) | |
2273 | { | |
2274 | case 0: | |
2275 | break; | |
2276 | case 1: /* Single */ | |
2277 | case 2: /* Pair */ | |
2278 | { | |
2279 | int format = otfg->f.f1.format; | |
2280 | ||
2281 | if (format & OTF_XPlacement) | |
2282 | adjustment[i].xoff | |
2283 | = otfg->f.f1.value->XPlacement * x_scale / 0x10000; | |
2284 | if (format & OTF_XPlaDevice) | |
2285 | adjustment[i].xoff | |
2286 | += DEVICE_DELTA (otfg->f.f1.value->XPlaDevice, x_ppem); | |
2287 | if (format & OTF_YPlacement) | |
2288 | adjustment[i].yoff | |
2289 | = - (otfg->f.f1.value->YPlacement * y_scale / 0x10000); | |
2290 | if (format & OTF_YPlaDevice) | |
2291 | adjustment[i].yoff | |
2292 | -= DEVICE_DELTA (otfg->f.f1.value->YPlaDevice, y_ppem); | |
2293 | if (format & OTF_XAdvance) | |
2294 | adjustment[i].xadv | |
2295 | += otfg->f.f1.value->XAdvance * x_scale / 0x10000; | |
2296 | if (format & OTF_XAdvDevice) | |
2297 | adjustment[i].xadv | |
2298 | += DEVICE_DELTA (otfg->f.f1.value->XAdvDevice, x_ppem); | |
2299 | if (format & OTF_YAdvance) | |
2300 | adjustment[i].yadv | |
2301 | += otfg->f.f1.value->YAdvance * y_scale / 0x10000; | |
2302 | if (format & OTF_YAdvDevice) | |
2303 | adjustment[i].yadv | |
2304 | += DEVICE_DELTA (otfg->f.f1.value->YAdvDevice, y_ppem); | |
2305 | adjustment[i].set = 1; | |
2306 | } | |
2307 | break; | |
2308 | case 3: /* Cursive */ | |
2309 | /* Not yet supported. */ | |
2310 | break; | |
2311 | case 4: /* Mark-to-Base */ | |
2312 | case 5: /* Mark-to-Ligature */ | |
2313 | if (! base) | |
2314 | break; | |
2315 | prev = base; | |
2316 | goto label_adjust_anchor; | |
2317 | default: /* i.e. case 6 Mark-to-Mark */ | |
2318 | if (! mark) | |
2319 | break; | |
2320 | prev = mark; | |
2321 | ||
2322 | label_adjust_anchor: | |
2323 | { | |
2324 | int base_x, base_y, mark_x, mark_y; | |
2325 | int this_from, this_to; | |
2326 | ||
2327 | base_x = otfg->f.f4.base_anchor->XCoordinate * x_scale / 0x10000; | |
2328 | base_y = otfg->f.f4.base_anchor->YCoordinate * y_scale / 0x10000; | |
2329 | mark_x = otfg->f.f4.mark_anchor->XCoordinate * x_scale / 0x10000; | |
8510724d | 2330 | mark_y = otfg->f.f4.mark_anchor->YCoordinate * y_scale / 0x10000; |
de023c40 KH |
2331 | |
2332 | if (otfg->f.f4.base_anchor->AnchorFormat != 1) | |
2333 | adjust_anchor (ft_face, otfg->f.f4.base_anchor, | |
2334 | prev->code, x_ppem, y_ppem, &base_x, &base_y); | |
2335 | if (otfg->f.f4.mark_anchor->AnchorFormat != 1) | |
2336 | adjust_anchor (ft_face, otfg->f.f4.mark_anchor, g->code, | |
2337 | x_ppem, y_ppem, &mark_x, &mark_y); | |
2338 | adjustment[i].xoff = (base_x - mark_x); | |
2339 | adjustment[i].yoff = - (base_y - mark_y); | |
2340 | adjustment[i].back = (g - prev); | |
2341 | adjustment[i].xadv = 0; | |
2342 | adjustment[i].advance_is_absolute = 1; | |
2343 | adjustment[i].set = 1; | |
2344 | this_from = g->from; | |
2345 | this_to = g->to; | |
2346 | for (j = 0; prev + j < g; j++) | |
2347 | { | |
2348 | if (this_from > prev[j].from) | |
2349 | this_from = prev[j].from; | |
2350 | if (this_to < prev[j].to) | |
2351 | this_to = prev[j].to; | |
2352 | } | |
2353 | for (; prev <= g; prev++) | |
2354 | { | |
2355 | prev->from = this_from; | |
2356 | prev->to = this_to; | |
2357 | } | |
2358 | } | |
2359 | } | |
2360 | if (otfg->GlyphClass == OTF_GlyphClass0) | |
2361 | base = mark = g; | |
2362 | else if (otfg->GlyphClass == OTF_GlyphClassMark) | |
2363 | mark = g; | |
2364 | else | |
2365 | base = g; | |
2366 | } | |
2367 | } | |
2368 | return to; | |
2369 | ||
2370 | simple_copy: | |
2371 | if (out->allocated < out->used + len) | |
2372 | return -2; | |
2373 | font->get_metrics (font, in, from, to); | |
2374 | memcpy (out->glyphs + out->used, in->glyphs + from, | |
2375 | sizeof (MFLTGlyph) * len); | |
2376 | out->used += len; | |
2377 | return to; | |
2378 | } | |
2379 | ||
c4170e32 KH |
2380 | #endif /* not M17N_FLT_USE_NEW_FEATURE */ |
2381 | ||
de023c40 KH |
2382 | static MFLTGlyphString gstring; |
2383 | ||
2384 | static int m17n_flt_initialized; | |
2385 | ||
990a73f0 | 2386 | static Lisp_Object |
d5a3eaaf AS |
2387 | ftfont_shape_by_flt (Lisp_Object lgstring, struct font *font, |
2388 | FT_Face ft_face, OTF *otf, FT_Matrix *matrix) | |
de023c40 | 2389 | { |
89a95b7c | 2390 | EMACS_UINT len = LGSTRING_GLYPH_LEN (lgstring); |
de023c40 KH |
2391 | EMACS_UINT i; |
2392 | struct MFLTFontFT flt_font_ft; | |
da2cf488 | 2393 | MFLT *flt = NULL; |
2b33f1ef | 2394 | int with_variation_selector = 0; |
de023c40 KH |
2395 | |
2396 | if (! m17n_flt_initialized) | |
2397 | { | |
2398 | M17N_INIT (); | |
c4170e32 KH |
2399 | #ifdef M17N_FLT_USE_NEW_FEATURE |
2400 | mflt_enable_new_feature = 1; | |
2401 | mflt_try_otf = ftfont_try_otf; | |
2402 | #endif /* M17N_FLT_USE_NEW_FEATURE */ | |
de023c40 KH |
2403 | m17n_flt_initialized = 1; |
2404 | } | |
2405 | ||
2406 | for (i = 0; i < len; i++) | |
2b33f1ef KH |
2407 | { |
2408 | Lisp_Object g = LGSTRING_GLYPH (lgstring, i); | |
2409 | int c; | |
2410 | ||
2411 | if (NILP (g)) | |
2412 | break; | |
2413 | c = LGLYPH_CHAR (g); | |
2414 | if (CHAR_VARIATION_SELECTOR_P (c)) | |
2415 | with_variation_selector++; | |
2416 | } | |
de023c40 | 2417 | len = i; |
2b33f1ef KH |
2418 | if (with_variation_selector) |
2419 | { | |
2420 | setup_otf_gstring (len); | |
2421 | for (i = 0; i < len; i++) | |
2422 | { | |
2423 | Lisp_Object g = LGSTRING_GLYPH (lgstring, i); | |
2424 | ||
2425 | otf_gstring.glyphs[i].c = LGLYPH_CHAR (g); | |
2426 | otf_gstring.glyphs[i].f.index.from = LGLYPH_FROM (g); | |
2427 | otf_gstring.glyphs[i].f.index.to = LGLYPH_TO (g); | |
2428 | } | |
2429 | OTF_drive_cmap (otf, &otf_gstring); | |
2430 | for (i = 0; i < otf_gstring.used; i++) | |
2431 | { | |
2432 | OTF_Glyph *otfg = otf_gstring.glyphs + i; | |
2433 | Lisp_Object g0 = LGSTRING_GLYPH (lgstring, otfg->f.index.from); | |
2434 | Lisp_Object g1 = LGSTRING_GLYPH (lgstring, otfg->f.index.to); | |
2435 | ||
2436 | LGLYPH_SET_CODE (g0, otfg->glyph_id); | |
2437 | LGLYPH_SET_TO (g0, LGLYPH_TO (g1)); | |
2438 | LGSTRING_SET_GLYPH (lgstring, i, g0); | |
2439 | } | |
2440 | if (len > otf_gstring.used) | |
2441 | { | |
2442 | len = otf_gstring.used; | |
2443 | LGSTRING_SET_GLYPH (lgstring, len, Qnil); | |
2444 | } | |
2445 | } | |
de023c40 KH |
2446 | |
2447 | if (gstring.allocated == 0) | |
2448 | { | |
2449 | gstring.allocated = len * 2; | |
2450 | gstring.glyph_size = sizeof (MFLTGlyph); | |
c6da7cd2 | 2451 | gstring.glyphs = xmalloc (sizeof (MFLTGlyph) * gstring.allocated); |
de023c40 KH |
2452 | } |
2453 | else if (gstring.allocated < len * 2) | |
2454 | { | |
2455 | gstring.allocated = len * 2; | |
c6da7cd2 JM |
2456 | gstring.glyphs = xrealloc (gstring.glyphs, |
2457 | sizeof (MFLTGlyph) * gstring.allocated); | |
de023c40 | 2458 | } |
2b33f1ef | 2459 | memset (gstring.glyphs, 0, sizeof (MFLTGlyph) * len); |
de023c40 | 2460 | for (i = 0; i < len; i++) |
2b33f1ef KH |
2461 | { |
2462 | Lisp_Object g = LGSTRING_GLYPH (lgstring, i); | |
2463 | ||
2464 | gstring.glyphs[i].c = LGLYPH_CHAR (g); | |
2465 | if (with_variation_selector) | |
2466 | { | |
2467 | gstring.glyphs[i].code = LGLYPH_CODE (g); | |
2468 | gstring.glyphs[i].encoded = 1; | |
2469 | } | |
2470 | } | |
2471 | ||
de023c40 KH |
2472 | gstring.used = len; |
2473 | gstring.r2l = 0; | |
2474 | ||
2475 | { | |
2476 | Lisp_Object family = Ffont_get (LGSTRING_FONT (lgstring), QCfamily); | |
2477 | ||
2478 | if (NILP (family)) | |
2479 | flt_font_ft.flt_font.family = Mnil; | |
2480 | else | |
21988a08 | 2481 | flt_font_ft.flt_font.family |
51b59d79 | 2482 | = msymbol (SSDATA (Fdowncase (SYMBOL_NAME (family)))); |
de023c40 KH |
2483 | } |
2484 | flt_font_ft.flt_font.x_ppem = ft_face->size->metrics.x_ppem; | |
2485 | flt_font_ft.flt_font.y_ppem = ft_face->size->metrics.y_ppem; | |
2486 | flt_font_ft.flt_font.get_glyph_id = ftfont_get_glyph_id; | |
2487 | flt_font_ft.flt_font.get_metrics = ftfont_get_metrics; | |
2488 | flt_font_ft.flt_font.check_otf = ftfont_check_otf; | |
2489 | flt_font_ft.flt_font.drive_otf = ftfont_drive_otf; | |
2490 | flt_font_ft.flt_font.internal = NULL; | |
2491 | flt_font_ft.font = font; | |
2492 | flt_font_ft.ft_face = ft_face; | |
2493 | flt_font_ft.otf = otf; | |
d0db2ec8 | 2494 | flt_font_ft.matrix = matrix->xx != 0 ? matrix : 0; |
7bf1bb21 KH |
2495 | if (len > 1 |
2496 | && gstring.glyphs[1].c >= 0x300 && gstring.glyphs[1].c <= 0x36F) | |
da2cf488 KH |
2497 | /* A little bit ad hoc. Perhaps, shaper must get script and |
2498 | language information, and select a proper flt for them | |
2499 | here. */ | |
2500 | flt = mflt_get (msymbol ("combining")); | |
de023c40 KH |
2501 | for (i = 0; i < 3; i++) |
2502 | { | |
da2cf488 | 2503 | int result = mflt_run (&gstring, 0, len, &flt_font_ft.flt_font, flt); |
de023c40 KH |
2504 | if (result != -2) |
2505 | break; | |
2506 | gstring.allocated += gstring.allocated; | |
c6da7cd2 JM |
2507 | gstring.glyphs = xrealloc (gstring.glyphs, |
2508 | sizeof (MFLTGlyph) * gstring.allocated); | |
de023c40 | 2509 | } |
89a95b7c | 2510 | if (gstring.used > LGSTRING_GLYPH_LEN (lgstring)) |
de023c40 KH |
2511 | return Qnil; |
2512 | for (i = 0; i < gstring.used; i++) | |
2513 | { | |
2514 | MFLTGlyph *g = gstring.glyphs + i; | |
2515 | ||
2516 | g->from = LGLYPH_FROM (LGSTRING_GLYPH (lgstring, g->from)); | |
2517 | g->to = LGLYPH_TO (LGSTRING_GLYPH (lgstring, g->to)); | |
2518 | } | |
2519 | ||
2520 | for (i = 0; i < gstring.used; i++) | |
2521 | { | |
2522 | Lisp_Object lglyph = LGSTRING_GLYPH (lgstring, i); | |
2523 | MFLTGlyph *g = gstring.glyphs + i; | |
2524 | ||
4cec6061 KH |
2525 | if (NILP (lglyph)) |
2526 | { | |
2527 | lglyph = Fmake_vector (make_number (LGLYPH_SIZE), Qnil); | |
2528 | LGSTRING_SET_GLYPH (lgstring, i, lglyph); | |
2529 | } | |
de023c40 KH |
2530 | LGLYPH_SET_FROM (lglyph, g->from); |
2531 | LGLYPH_SET_TO (lglyph, g->to); | |
2532 | LGLYPH_SET_CHAR (lglyph, g->c); | |
2533 | LGLYPH_SET_CODE (lglyph, g->code); | |
2534 | LGLYPH_SET_WIDTH (lglyph, g->xadv >> 6); | |
2535 | LGLYPH_SET_LBEARING (lglyph, g->lbearing >> 6); | |
2536 | LGLYPH_SET_RBEARING (lglyph, g->rbearing >> 6); | |
2537 | LGLYPH_SET_ASCENT (lglyph, g->ascent >> 6); | |
2538 | LGLYPH_SET_DESCENT (lglyph, g->descent >> 6); | |
2539 | if (g->adjusted) | |
2540 | { | |
2541 | Lisp_Object vec; | |
2542 | ||
2543 | vec = Fmake_vector (make_number (3), Qnil); | |
2544 | ASET (vec, 0, make_number (g->xoff >> 6)); | |
2545 | ASET (vec, 1, make_number (g->yoff >> 6)); | |
2546 | ASET (vec, 2, make_number (g->xadv >> 6)); | |
2547 | LGLYPH_SET_ADJUSTMENT (lglyph, vec); | |
2548 | } | |
2549 | } | |
2550 | return make_number (i); | |
2551 | } | |
2552 | ||
2553 | Lisp_Object | |
d5a3eaaf | 2554 | ftfont_shape (Lisp_Object lgstring) |
de023c40 KH |
2555 | { |
2556 | struct font *font; | |
2557 | struct ftfont_info *ftfont_info; | |
e302a291 | 2558 | OTF *otf; |
de023c40 KH |
2559 | |
2560 | CHECK_FONT_GET_OBJECT (LGSTRING_FONT (lgstring), font); | |
2561 | ftfont_info = (struct ftfont_info *) font; | |
e302a291 KH |
2562 | otf = ftfont_get_otf (ftfont_info); |
2563 | if (! otf) | |
4cc1c806 | 2564 | return make_number (0); |
d0db2ec8 KH |
2565 | return ftfont_shape_by_flt (lgstring, font, ftfont_info->ft_size->face, otf, |
2566 | &ftfont_info->matrix); | |
de023c40 KH |
2567 | } |
2568 | ||
e3869731 KH |
2569 | #endif /* HAVE_M17N_FLT */ |
2570 | ||
2b33f1ef KH |
2571 | #ifdef HAVE_OTF_GET_VARIATION_GLYPHS |
2572 | ||
2573 | static int | |
d5a3eaaf | 2574 | ftfont_variation_glyphs (struct font *font, int c, unsigned variations[256]) |
2b33f1ef KH |
2575 | { |
2576 | struct ftfont_info *ftfont_info = (struct ftfont_info *) font; | |
2577 | OTF *otf = ftfont_get_otf (ftfont_info); | |
2578 | ||
2579 | if (! otf) | |
2580 | return 0; | |
2581 | return OTF_get_variation_glyphs (otf, c, variations); | |
2582 | } | |
2583 | ||
2584 | #endif /* HAVE_OTF_GET_VARIATION_GLYPHS */ | |
de023c40 KH |
2585 | #endif /* HAVE_LIBOTF */ |
2586 | ||
0b966021 | 2587 | Lisp_Object |
7d7ad10e | 2588 | ftfont_font_format (FcPattern *pattern, Lisp_Object filename) |
0b966021 | 2589 | { |
e907d979 | 2590 | FcChar8 *str; |
0b966021 | 2591 | |
e907d979 | 2592 | #ifdef FC_FONTFORMAT |
7d7ad10e | 2593 | if (pattern) |
719b3d63 | 2594 | { |
7d7ad10e KH |
2595 | if (FcPatternGetString (pattern, FC_FONTFORMAT, 0, &str) != FcResultMatch) |
2596 | return Qnil; | |
2597 | if (strcmp ((char *) str, "TrueType") == 0) | |
719b3d63 | 2598 | return intern ("truetype"); |
7d7ad10e | 2599 | if (strcmp ((char *) str, "Type 1") == 0) |
719b3d63 | 2600 | return intern ("type1"); |
7d7ad10e | 2601 | if (strcmp ((char *) str, "PCF") == 0) |
719b3d63 | 2602 | return intern ("pcf"); |
7d7ad10e | 2603 | if (strcmp ((char *) str, "BDF") == 0) |
719b3d63 KH |
2604 | return intern ("bdf"); |
2605 | } | |
7d7ad10e KH |
2606 | #endif /* FC_FONTFORMAT */ |
2607 | if (STRINGP (filename)) | |
2608 | { | |
2609 | int len = SBYTES (filename); | |
2610 | ||
2611 | if (len >= 4) | |
2612 | { | |
2613 | str = (FcChar8 *) (SDATA (filename) + len - 4); | |
2614 | if (xstrcasecmp ((char *) str, ".ttf") == 0) | |
2615 | return intern ("truetype"); | |
2616 | if (xstrcasecmp ((char *) str, ".pfb") == 0) | |
2617 | return intern ("type1"); | |
2618 | if (xstrcasecmp ((char *) str, ".pcf") == 0) | |
2619 | return intern ("pcf"); | |
2620 | if (xstrcasecmp ((char *) str, ".bdf") == 0) | |
2621 | return intern ("bdf"); | |
2622 | } | |
2623 | } | |
0b966021 KH |
2624 | return intern ("unknown"); |
2625 | } | |
2626 | ||
3106121c | 2627 | static const char *const ftfont_booleans [] = { |
637fa988 JD |
2628 | ":antialias", |
2629 | ":hinting", | |
2630 | ":verticallayout", | |
2631 | ":autohint", | |
2632 | ":globaladvance", | |
2633 | ":outline", | |
2634 | ":scalable", | |
2635 | ":minspace", | |
2636 | ":embolden", | |
2637 | NULL, | |
2638 | }; | |
2639 | ||
3106121c | 2640 | static const char *const ftfont_non_booleans [] = { |
637fa988 JD |
2641 | ":family", |
2642 | ":familylang", | |
2643 | ":style", | |
2644 | ":stylelang", | |
2645 | ":fullname", | |
2646 | ":fullnamelang", | |
2647 | ":slant", | |
2648 | ":weight", | |
2649 | ":size", | |
2650 | ":width", | |
2651 | ":aspect", | |
2652 | ":pixelsize", | |
2653 | ":spacing", | |
2654 | ":foundry", | |
2655 | ":hintstyle", | |
2656 | ":file", | |
2657 | ":index", | |
2658 | ":ftface", | |
2659 | ":rasterizer", | |
2660 | ":scale", | |
2661 | ":dpi", | |
2662 | ":rgba", | |
2663 | ":lcdfilter", | |
2664 | ":charset", | |
2665 | ":lang", | |
2666 | ":fontversion", | |
2667 | ":capability", | |
2668 | NULL, | |
2669 | }; | |
2670 | ||
2671 | static void | |
971de7fb | 2672 | ftfont_filter_properties (Lisp_Object font, Lisp_Object alist) |
637fa988 | 2673 | { |
9fa82824 | 2674 | font_filter_properties (font, alist, ftfont_booleans, ftfont_non_booleans); |
637fa988 JD |
2675 | } |
2676 | ||
2677 | ||
c2f5bfd6 | 2678 | void |
971de7fb | 2679 | syms_of_ftfont (void) |
c2f5bfd6 | 2680 | { |
706b6995 KH |
2681 | DEFSYM (Qfreetype, "freetype"); |
2682 | DEFSYM (Qmonospace, "monospace"); | |
2683 | DEFSYM (Qsans_serif, "sans-serif"); | |
2684 | DEFSYM (Qserif, "serif"); | |
2685 | DEFSYM (Qmono, "mono"); | |
2686 | DEFSYM (Qsans, "sans"); | |
2687 | DEFSYM (Qsans__serif, "sans serif"); | |
2688 | ||
c2f5bfd6 | 2689 | staticpro (&freetype_font_cache); |
c2801c99 | 2690 | freetype_font_cache = Fcons (Qt, Qnil); |
c2f5bfd6 | 2691 | |
706b6995 KH |
2692 | staticpro (&ftfont_generic_family_list); |
2693 | ftfont_generic_family_list | |
2694 | = Fcons (Fcons (Qmonospace, Qt), | |
2695 | Fcons (Fcons (Qsans_serif, Qt), | |
2696 | Fcons (Fcons (Qsans, Qt), Qnil))); | |
c2f5bfd6 | 2697 | |
21988a08 KH |
2698 | staticpro (&ft_face_cache); |
2699 | ft_face_cache = Qnil; | |
2700 | ||
c2f5bfd6 KH |
2701 | ftfont_driver.type = Qfreetype; |
2702 | register_font_driver (&ftfont_driver, NULL); | |
2703 | } |