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(get_adstyle_property): Fix previous change.
[bpt/emacs.git] / src / ftfont.c
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c2f5bfd6 1/* ftfont.c -- FreeType font driver.
76b6f707
GM		 2 Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
3 Copyright (C) 2006, 2007, 2008, 2009
c2f5bfd6
KH		 4 National Institute of Advanced Industrial Science and Technology (AIST)
5 Registration Number H13PRO009
6
7This file is part of GNU Emacs.
8
9ec0b715 9GNU Emacs is free software: you can redistribute it and/or modify
c2f5bfd6 10it under the terms of the GNU General Public License as published by
9ec0b715
GM		 11the Free Software Foundation, either version 3 of the License, or
12(at your option) any later version.
c2f5bfd6
KH		 13
14GNU Emacs is distributed in the hope that it will be useful,
15but WITHOUT ANY WARRANTY; without even the implied warranty of
16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17GNU General Public License for more details.
18
19You should have received a copy of the GNU General Public License
9ec0b715 20along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
c2f5bfd6
KH		 21
22#include <config.h>
23#include <stdio.h>
24
c2f5bfd6
KH		 25#include <fontconfig/fontconfig.h>
26#include <fontconfig/fcfreetype.h>
27
28#include "lisp.h"
29#include "dispextern.h"
30#include "frame.h"
31#include "blockinput.h"
32#include "character.h"
33#include "charset.h"
34#include "coding.h"
89a95b7c 35#include "composite.h"
c2f5bfd6
KH		 36#include "fontset.h"
37#include "font.h"
de023c40 38#include "ftfont.h"
c2f5bfd6 39
c2801c99 40/* Symbolic type of this font-driver. */
c2f5bfd6
KH		 41Lisp_Object Qfreetype;
42
706b6995
KH		 43/* Fontconfig's generic families and their aliases. */
44static Lisp_Object Qmonospace, Qsans_serif, Qserif, Qmono, Qsans, Qsans__serif;
45
99c4d65d
KH		 46/* Special ADSTYLE properties to avoid fonts used for Latin characters. */
47static Lisp_Object Qja, Qko;
48
2a46904e 49/* Flag to tell if FcInit is already called or not. */
c2f5bfd6 50static int fc_initialized;
c2801c99
KH		 51
52/* Handle to a FreeType library instance. */
c2f5bfd6
KH		 53static FT_Library ft_library;
54
c2801c99 55/* Cache for FreeType fonts. */
c2f5bfd6
KH		 56static Lisp_Object freetype_font_cache;
57
e302a291 58/* Cache for FT_Face and FcCharSet. */
21988a08 59static Lisp_Object ft_face_cache;
c2f5bfd6
KH		 60
61/* The actual structure for FreeType font that can be casted to struct
62 font. */
63
64struct ftfont_info
65{
66 struct font font;
de023c40 67#ifdef HAVE_LIBOTF
7179ce7b 68 /* The following four members must be here in this order to be
e302a291 69 compatible with struct xftfont_info (in xftfont.c). */
de023c40
KH		 70 int maybe_otf; /* Flag to tell if this may be OTF or not. */
71 OTF *otf;
72#endif /* HAVE_LIBOTF */
e302a291
KH		 73 FT_Size ft_size;
74 int index;
c2f5bfd6
KH		 75};
76
e302a291 77static Lisp_Object ftfont_pattern_entity P_ ((FcPattern *, Lisp_Object));
21988a08 78
7d7ad10e
KH		 79static Lisp_Object ftfont_resolve_generic_family P_ ((Lisp_Object,
80 FcPattern *));
e302a291
KH		 81static Lisp_Object ftfont_lookup_cache P_ ((Lisp_Object, int));
82
7d7ad10e 83Lisp_Object ftfont_font_format P_ ((FcPattern *, Lisp_Object));
706b6995
KH		 84
85#define SYMBOL_FcChar8(SYM) (FcChar8 *) SDATA (SYMBOL_NAME (SYM))
86
21988a08 87static struct
c2f5bfd6 88{
e302a291 89 /* registry name */
21988a08
KH		 90 char *name;
91 /* characters to distinguish the charset from the others */
92 int uniquifier[6];
7d7ad10e
KH		 93 /* additional constraint by language */
94 char *lang;
21988a08
KH		 95 /* set on demand */
96 FcCharSet *fc_charset;
97} fc_charset_table[] =
99c4d65d 98 { { "iso8859-1", { } }, /* ftfont_get_latin1_charset handles it. */
e302a291
KH		 99 { "iso8859-2", { 0x00A0, 0x010E }},
100 { "iso8859-3", { 0x00A0, 0x0108 }},
101 { "iso8859-4", { 0x00A0, 0x00AF, 0x0128, 0x0156, 0x02C7 }},
102 { "iso8859-5", { 0x00A0, 0x0401 }},
103 { "iso8859-6", { 0x00A0, 0x060C }},
104 { "iso8859-7", { 0x00A0, 0x0384 }},
105 { "iso8859-8", { 0x00A0, 0x05D0 }},
106 { "iso8859-9", { 0x00A0, 0x00A1, 0x00BC, 0x011E }},
107 { "iso8859-10", { 0x00A0, 0x00D0, 0x0128, 0x2015 }},
108 { "iso8859-11", { 0x00A0, 0x0E01 }},
109 { "iso8859-13", { 0x00A0, 0x201C }},
110 { "iso8859-14", { 0x00A0, 0x0174 }},
111 { "iso8859-15", { 0x00A0, 0x00A1, 0x00D0, 0x0152 }},
112 { "iso8859-16", { 0x00A0, 0x0218}},
113 { "gb2312.1980-0", { 0x4E13 }, "zh-cn"},
114 { "big5-0", { 0xF6B1 }, "zh-tw" },
115 { "jisx0208.1983-0", { 0x4E55 }, "ja"},
116 { "ksc5601.1985-0", { 0xAC00 }, "ko"},
117 { "cns11643.1992-1", { 0xFE32 }, "zh-tw"},
118 { "cns11643.1992-2", { 0x4E33, 0x7934 }},
119 { "cns11643.1992-3", { 0x201A9 }},
120 { "cns11643.1992-4", { 0x20057 }},
121 { "cns11643.1992-5", { 0x20000 }},
122 { "cns11643.1992-6", { 0x20003 }},
123 { "cns11643.1992-7", { 0x20055 }},
124 { "gbk-0", { 0x4E06 }, "zh-cn"},
125 { "jisx0212.1990-0", { 0x4E44 }},
126 { "jisx0213.2000-1", { 0xFA10 }, "ja"},
127 { "jisx0213.2000-2", { 0xFA49 }},
128 { "jisx0213.2004-1", { 0x20B9F }},
129 { "viscii1.1-1", { 0x1EA0, 0x1EAE, 0x1ED2 }, "vi"},
130 { "tis620.2529-1", { 0x0E01 }, "th"},
7d7ad10e
KH		 131 { "windows-1251", { 0x0401, 0x0490 }, "ru"},
132 { "koi8-r", { 0x0401, 0x2219 }, "ru"},
e302a291 133 { "mulelao-1", { 0x0E81 }, "lo"},
7b649478 134 { "unicode-sip", { 0x20000 }},
21988a08
KH		 135 { NULL }
136 };
c2f5bfd6 137
99c4d65d
KH		 138/* Return a FcCharSet for iso8859-1 from fc_charset_table[0]. If the
139 charset is not yet ready, create it. */
140static FcCharSet *
141ftfont_get_latin1_charset ()
142{
143 FcCharSet *cs;
144 FcChar32 c;
145
146 if (fc_charset_table[0].fc_charset)
147 return fc_charset_table[0].fc_charset;
148 cs = FcCharSetCreate ();
149 if (! cs)
150 return NULL;
151 for (c = 33; c <= 0xFF; c++)
152 {
153 FcCharSetAddChar (cs, c);
154 if (c == 0x7E)
155 c = 0xA0;
156 }
157 fc_charset_table[0].fc_charset = cs;
158 return cs;
159}
160
42984a74
KH		 161extern Lisp_Object Qc, Qm, Qp, Qd;
162
99c4d65d
KH		 163/* Dirty hack for handing ADSTYLE property.
164
165 Fontconfig (actually the underlying FreeType) gives such ADSTYLE
166 font property of PCF/BDF fonts in FC_STYLE. And, "Bold",
167 "Oblique", "Italic", or any non-normal SWIDTH property names
168 (e.g. SemiCondensed) are appended. In addition, if there's no
169 ADSTYLE property nor non-normal WEIGHT/SLANT/SWIDTH properties,
170 "Regular" is used for FC_STYLE (see the function
171 pcf_interpret_style in src/pcf/pcfread.c of FreeType).
172
173 Unfortunately this behavior is not documented, so the following
174 code may fail if FreeType changes the behavior in the future. */
175
176static Lisp_Object
177get_adstyle_property (FcPattern *p)
178{
179 char *str, *end;
180 Lisp_Object adstyle;
181
182 if (FcPatternGetString (p, FC_STYLE, 0, (FcChar8 **) &str) != FcResultMatch)
183 return Qnil;
184 for (end = str; *end && *end != ' '; end++);
185 if (*end)
186 {
187 char *p = alloca (end - str + 1);
188 memcpy (p, str, end - str);
189 p[end - str] = '\0';
a8a3728b 190 end = p + (end - str);
99c4d65d
KH		 191 str = p;
192 }
193 if (xstrcasecmp (str, "Regular") == 0
194 || xstrcasecmp (str, "Bold") == 0
195 || xstrcasecmp (str, "Oblique") == 0
196 || xstrcasecmp (str, "Italic") == 0)
197 return Qnil;
198 adstyle = font_intern_prop (str, end - str, 0);
199 if (font_style_to_value (FONT_WIDTH_INDEX, adstyle, 0) >= 0)
200 return Qnil;
201 return adstyle;
202}
203
706b6995 204static Lisp_Object
e302a291 205ftfont_pattern_entity (p, extra)
c2801c99 206 FcPattern *p;
e302a291 207 Lisp_Object extra;
c2801c99
KH		 208{
209 Lisp_Object entity;
21988a08 210 char *file, *str;
e302a291 211 int index;
c2801c99
KH		 212 int numeric;
213 double dbl;
42984a74 214 FcBool b;
c2801c99 215
21988a08 216 if (FcPatternGetString (p, FC_FILE, 0, (FcChar8 **) &file) != FcResultMatch)
c2801c99 217 return Qnil;
e302a291
KH		 218 if (FcPatternGetInteger (p, FC_INDEX, 0, &index) != FcResultMatch)
219 return Qnil;
c2801c99 220
42984a74 221 entity = font_make_entity ();
c2801c99
KH		 222
223 ASET (entity, FONT_TYPE_INDEX, Qfreetype);
e302a291 224 ASET (entity, FONT_REGISTRY_INDEX, Qiso10646_1);
c2801c99 225
21988a08 226 if (FcPatternGetString (p, FC_FOUNDRY, 0, (FcChar8 **) &str) == FcResultMatch)
a1a94102 227 ASET (entity, FONT_FOUNDRY_INDEX, font_intern_prop (str, strlen (str), 1));
21988a08 228 if (FcPatternGetString (p, FC_FAMILY, 0, (FcChar8 **) &str) == FcResultMatch)
a1a94102 229 ASET (entity, FONT_FAMILY_INDEX, font_intern_prop (str, strlen (str), 1));
c2801c99 230 if (FcPatternGetInteger (p, FC_WEIGHT, 0, &numeric) == FcResultMatch)
f63d54dc 231 {
42984a74
KH		 232 if (numeric >= FC_WEIGHT_REGULAR && numeric < FC_WEIGHT_MEDIUM)
233 numeric = FC_WEIGHT_MEDIUM;
234 FONT_SET_STYLE (entity, FONT_WEIGHT_INDEX, make_number (numeric));
f63d54dc 235 }
c2801c99 236 if (FcPatternGetInteger (p, FC_SLANT, 0, &numeric) == FcResultMatch)
42984a74
KH		 237 {
238 numeric += 100;
239 FONT_SET_STYLE (entity, FONT_SLANT_INDEX, make_number (numeric));
240 }
c2801c99 241 if (FcPatternGetInteger (p, FC_WIDTH, 0, &numeric) == FcResultMatch)
42984a74
KH		 242 {
243 FONT_SET_STYLE (entity, FONT_WIDTH_INDEX, make_number (numeric));
244 }
c2801c99 245 if (FcPatternGetDouble (p, FC_PIXEL_SIZE, 0, &dbl) == FcResultMatch)
99c4d65d
KH		 246 {
247 Lisp_Object adstyle;
248
249 ASET (entity, FONT_SIZE_INDEX, make_number (dbl));
250 /* As this font has PIXEL_SIZE property, parhaps this is a BDF
251 or PCF font. */
252 ASET (entity, FONT_ADSTYLE_INDEX, get_adstyle_property (p));
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)
265 ASET (entity, FONT_AVGWIDTH_INDEX, make_number (0));
c2801c99 266
4ffe34a4 267 ASET (entity, FONT_EXTRA_INDEX, Fcopy_sequence (extra));
21988a08
KH		 268 font_put_extra (entity, QCfont_entity,
269 Fcons (make_unibyte_string ((char *) file,
270 strlen ((char *) file)),
e302a291 271 make_number (index)));
c2801c99
KH		 272 return entity;
273}
274
42984a74 275
706b6995
KH		 276static Lisp_Object ftfont_generic_family_list;
277
278static Lisp_Object
7d7ad10e 279ftfont_resolve_generic_family (family, pattern)
42984a74 280 Lisp_Object family;
7d7ad10e 281 FcPattern *pattern;
706b6995 282{
318548be 283 Lisp_Object slot;
7d7ad10e 284 FcPattern *match;
318548be 285 FcResult result;
89a95b7c 286 FcLangSet *langset;
706b6995 287
318548be 288 family = Fintern (Fdowncase (SYMBOL_NAME (family)), Qnil);
706b6995
KH		 289 if (EQ (family, Qmono))
290 family = Qmonospace;
291 else if (EQ (family, Qsans) || EQ (family, Qsans__serif))
292 family = Qsans_serif;
293 slot = assq_no_quit (family, ftfont_generic_family_list);
294 if (! CONSP (slot))
42984a74 295 return Qnil;
318548be
KH		 296 if (! EQ (XCDR (slot), Qt))
297 return XCDR (slot);
7d7ad10e 298 pattern = FcPatternDuplicate (pattern);
42984a74
KH		 299 if (! pattern)
300 goto err;
bb658864 301 FcPatternDel (pattern, FC_FOUNDRY);
7d7ad10e
KH		 302 FcPatternDel (pattern, FC_FAMILY);
303 FcPatternAddString (pattern, FC_FAMILY, SYMBOL_FcChar8 (family));
89a95b7c
KH		 304 if (FcPatternGetLangSet (pattern, FC_LANG, 0, &langset) != FcResultMatch)
305 {
306 /* This is to avoid the effect of locale. */
307 langset = FcLangSetCreate ();
308 FcLangSetAdd (langset, "en");
309 FcPatternAddLangSet (pattern, FC_LANG, langset);
310 FcLangSetDestroy (langset);
311 }
42984a74 312 FcConfigSubstitute (NULL, pattern, FcMatchPattern);
318548be
KH		 313 FcDefaultSubstitute (pattern);
314 match = FcFontMatch (NULL, pattern, &result);
315 if (match)
706b6995 316 {
318548be
KH		 317 FcChar8 *fam;
318
319 if (FcPatternGetString (match, FC_FAMILY, 0, &fam) == FcResultMatch)
320 family = intern ((char *) fam);
706b6995 321 }
318548be
KH		 322 else
323 family = Qnil;
324 XSETCDR (slot, family);
318548be 325 if (match) FcPatternDestroy (match);
bf39cdd8 326 err:
42984a74 327 if (pattern) FcPatternDestroy (pattern);
318548be 328 return family;
706b6995
KH		 329}
330
e302a291
KH		 331struct ftfont_cache_data
332{
333 FT_Face ft_face;
334 FcCharSet *fc_charset;
335};
336
337static Lisp_Object
338ftfont_lookup_cache (key, for_face)
339 Lisp_Object key;
340 int for_face;
21988a08 341{
99c4d65d 342 Lisp_Object cache, val, entity;
e302a291 343 struct ftfont_cache_data *cache_data;
21988a08 344
99c4d65d
KH		 345 if (FONT_ENTITY_P (key))
346 {
347 entity = key;
348 val = assq_no_quit (QCfont_entity, AREF (entity, FONT_EXTRA_INDEX));
349 xassert (CONSP (val));
350 key = XCDR (val);
351 }
352 else
353 entity = Qnil;
354
e302a291 355 cache = assoc_no_quit (key, ft_face_cache);
21988a08
KH		 356 if (NILP (cache))
357 {
e302a291
KH		 358 cache_data = xmalloc (sizeof (struct ftfont_cache_data));
359 cache_data->ft_face = NULL;
360 cache_data->fc_charset = NULL;
21988a08 361 val = make_save_value (NULL, 0);
e302a291
KH		 362 XSAVE_VALUE (val)->integer = 0;
363 XSAVE_VALUE (val)->pointer = cache_data;
364 cache = Fcons (key, val);
21988a08
KH		 365 ft_face_cache = Fcons (cache, ft_face_cache);
366 }
367 else
21988a08 368 {
e302a291
KH		 369 val = XCDR (cache);
370 cache_data = XSAVE_VALUE (val)->pointer;
371 }
372 if (for_face ? ! cache_data->ft_face : ! cache_data->fc_charset)
373 {
374 char *filename = (char *) SDATA (XCAR (key));
375 int index = XINT (XCDR (key));
21988a08 376
e302a291
KH		 377 if (for_face)
378 {
379 if (! ft_library
380 && FT_Init_FreeType (&ft_library) != 0)
381 return Qnil;
382 if (FT_New_Face (ft_library, filename, index, &cache_data->ft_face)
383 != 0)
384 return Qnil;
385 }
386 else
387 {
99c4d65d
KH		 388 FcPattern *pat = NULL;
389 FcFontSet *fontset = NULL;
390 FcObjectSet *objset = NULL;
391 FcCharSet *charset = NULL;
e302a291
KH		 392
393 pat = FcPatternBuild (0, FC_FILE, FcTypeString, (FcChar8 *) filename,
394 FC_INDEX, FcTypeInteger, index, NULL);
99c4d65d
KH		 395 if (! pat)
396 goto finish;
397 objset = FcObjectSetBuild (FC_CHARSET, FC_STYLE, NULL);
398 if (! objset)
399 goto finish;
e302a291 400 fontset = FcFontList (NULL, pat, objset);
99c4d65d
KH		 401 if (! fontset)
402 goto finish;
403 if (fontset && fontset->nfont > 0)
404 {
405 if (FcPatternGetCharSet (fontset->fonts[0], FC_CHARSET, 0,
1c0db158 406 &charset)
99c4d65d
KH		 407 == FcResultMatch)
408 {
409 /* Dirty hack. Fonts of "ja" and "ko" adstyle are
410 not suitable for Latin characters. */
411 if (! NILP (entity)
412 && (EQ (AREF (entity, FONT_ADSTYLE_INDEX), Qja)
413 || EQ (AREF (entity, FONT_ADSTYLE_INDEX), Qko)))
414 {
415 FcCharSet *latin1 = ftfont_get_latin1_charset ();
416
417 if (! latin1)
418 goto finish;
419 cache_data->fc_charset = FcCharSetSubtract (charset,
420 latin1);
421 }
422 else
423 cache_data->fc_charset = FcCharSetCopy (charset);
424 }
425 else
426 cache_data->fc_charset = FcCharSetCreate ();
427 }
e302a291
KH		 428 else
429 cache_data->fc_charset = FcCharSetCreate ();
99c4d65d
KH		 430
431 finish:
432 if (fontset)
433 FcFontSetDestroy (fontset);
434 if (objset)
435 FcObjectSetDestroy (objset);
436 if (pat)
437 FcPatternDestroy (pat);
e302a291 438 }
21988a08
KH		 439 }
440 return cache;
441}
442
e302a291
KH		 443FcCharSet *
444ftfont_get_fc_charset (entity)
445 Lisp_Object entity;
446{
447 Lisp_Object val, cache;
448 struct ftfont_cache_data *cache_data;
449
99c4d65d 450 cache = ftfont_lookup_cache (entity, 0);
e302a291
KH		 451 val = XCDR (cache);
452 cache_data = XSAVE_VALUE (val)->pointer;
453 return cache_data->fc_charset;
454}
455
456#ifdef HAVE_LIBOTF
457static OTF *
458ftfont_get_otf (ftfont_info)
459 struct ftfont_info *ftfont_info;
460{
461 OTF *otf;
462
463 if (ftfont_info->otf)
464 return ftfont_info->otf;
465 if (! ftfont_info->maybe_otf)
466 return NULL;
467 otf = OTF_open_ft_face (ftfont_info->ft_size->face);
468 if (! otf || OTF_get_table (otf, "head") < 0)
469 {
470 if (otf)
471 OTF_close (otf);
472 ftfont_info->maybe_otf = 0;
473 return NULL;
474 }
475 ftfont_info->otf = otf;
476 return otf;
477}
478#endif /* HAVE_LIBOTF */
479
77175228 480static Lisp_Object ftfont_get_cache P_ ((FRAME_PTR));
c2f5bfd6 481static Lisp_Object ftfont_list P_ ((Lisp_Object, Lisp_Object));
8daf5667 482static Lisp_Object ftfont_match P_ ((Lisp_Object, Lisp_Object));
c2f5bfd6 483static Lisp_Object ftfont_list_family P_ ((Lisp_Object));
42984a74 484static Lisp_Object ftfont_open P_ ((FRAME_PTR, Lisp_Object, int));
c2f5bfd6
KH		 485static void ftfont_close P_ ((FRAME_PTR, struct font *));
486static int ftfont_has_char P_ ((Lisp_Object, int));
487static unsigned ftfont_encode_char P_ ((struct font *, int));
488static int ftfont_text_extents P_ ((struct font *, unsigned *, int,
489 struct font_metrics *));
490static int ftfont_get_bitmap P_ ((struct font *, unsigned,
491 struct font_bitmap *, int));
492static int ftfont_anchor_point P_ ((struct font *, unsigned, int,
493 int *, int *));
e302a291 494static Lisp_Object ftfont_otf_capability P_ ((struct font *));
de023c40 495static Lisp_Object ftfont_shape P_ ((Lisp_Object));
3ce80cbe 496
3ce80cbe 497#ifdef HAVE_OTF_GET_VARIATION_GLYPHS
2b33f1ef
KH		 498static int ftfont_variation_glyphs P_ ((struct font *, int c,
499 unsigned variations[256]));
3ce80cbe 500#endif /* HAVE_OTF_GET_VARIATION_GLYPHS */
c2f5bfd6
KH		 501
502struct font_driver ftfont_driver =
503 {
09a56ce4 504 0, /* Qfreetype */
42984a74 505 0, /* case insensitive */
c2f5bfd6 506 ftfont_get_cache,
c2f5bfd6 507 ftfont_list,
8daf5667 508 ftfont_match,
c2f5bfd6 509 ftfont_list_family,
2b33f1ef 510 NULL, /* free_entity */
c2f5bfd6
KH		 511 ftfont_open,
512 ftfont_close,
513 /* We can't draw a text without device dependent functions. */
2b33f1ef
KH		 514 NULL, /* prepare_face */
515 NULL, /* done_face */
c2f5bfd6
KH		 516 ftfont_has_char,
517 ftfont_encode_char,
518 ftfont_text_extents,
519 /* We can't draw a text without device dependent functions. */
2b33f1ef 520 NULL, /* draw */
c2f5bfd6 521 ftfont_get_bitmap,
2b33f1ef
KH		 522 NULL, /* get_bitmap */
523 NULL, /* free_bitmap */
524 NULL, /* get_outline */
c2f5bfd6 525 ftfont_anchor_point,
e302a291
KH		 526#ifdef HAVE_LIBOTF
527 ftfont_otf_capability,
528#else /* not HAVE_LIBOTF */
c2f5bfd6 529 NULL,
e302a291 530#endif /* not HAVE_LIBOTF */
2b33f1ef
KH		 531 NULL, /* otf_drive */
532 NULL, /* start_for_frame */
533 NULL, /* end_for_frame */
637ac44c 534#if defined (HAVE_M17N_FLT) && defined (HAVE_LIBOTF)
2b33f1ef 535 ftfont_shape,
637ac44c 536#else /* not (HAVE_M17N_FLT && HAVE_LIBOTF) */
2b33f1ef 537 NULL,
637ac44c 538#endif /* not (HAVE_M17N_FLT && HAVE_LIBOTF) */
2b33f1ef 539 NULL, /* check */
3ce80cbe 540
e3869731 541#ifdef HAVE_OTF_GET_VARIATION_GLYPHS
2b33f1ef
KH		 542 ftfont_variation_glyphs
543#else
544 NULL
545#endif
c2f5bfd6
KH		 546 };
547
c2f5bfd6
KH		 548extern Lisp_Object QCname;
549
550static Lisp_Object
77175228
KH		 551ftfont_get_cache (f)
552 FRAME_PTR f;
c2f5bfd6 553{
c2f5bfd6
KH		 554 return freetype_font_cache;
555}
556
21988a08
KH		 557static int
558ftfont_get_charset (registry)
559 Lisp_Object registry;
560{
e302a291
KH		 561 char *str = (char *) SDATA (SYMBOL_NAME (registry));
562 char *re = alloca (SBYTES (SYMBOL_NAME (registry)) * 2 + 1);
563 Lisp_Object regexp;
21988a08
KH		 564 int i, j;
565
e302a291
KH		 566 for (i = j = 0; i < SBYTES (SYMBOL_NAME (registry)); i++, j++)
567 {
568 if (str[i] == '.')
569 re[j++] = '\\';
570 else if (str[i] == '*')
571 re[j++] = '.';
572 re[j] = str[i];
573 if (re[j] == '?')
574 re[j] = '.';
575 }
576 re[j] = '\0';
577 regexp = make_unibyte_string (re, j);
21988a08 578 for (i = 0; fc_charset_table[i].name; i++)
e302a291 579 if (fast_c_string_match_ignore_case (regexp, fc_charset_table[i].name) >= 0)
21988a08
KH		 580 break;
581 if (! fc_charset_table[i].name)
582 return -1;
583 if (! fc_charset_table[i].fc_charset)
584 {
99c4d65d
KH		 585 if (i == 0)
586 ftfont_get_latin1_charset ();
587 else
588 {
589 FcCharSet *charset = FcCharSetCreate ();
590 int *uniquifier = fc_charset_table[i].uniquifier;
21988a08 591
99c4d65d 592 if (! charset)
21988a08 593 return -1;
99c4d65d
KH		 594 for (j = 0; uniquifier[j]; j++)
595 if (! FcCharSetAddChar (charset, uniquifier[j]))
596 {
597 FcCharSetDestroy (charset);
598 return -1;
599 }
600 fc_charset_table[i].fc_charset = charset;
601 }
21988a08
KH		 602 }
603 return i;
604}
605
cc63eaf9
KH		 606struct OpenTypeSpec
607{
16963817
KH		 608 Lisp_Object script;
609 unsigned int script_tag, langsys_tag;
cc63eaf9
KH		 610 int nfeatures[2];
611 unsigned int *features[2];
612};
613
7eb5d3d7 614#define OTF_SYM_TAG(SYM, TAG) \
cc63eaf9 615 do { \
7eb5d3d7
KH		 616 unsigned char *p = SDATA (SYMBOL_NAME (SYM)); \
617 TAG = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; \
cc63eaf9
KH		 618 } while (0)
619
7eb5d3d7 620#define OTF_TAG_STR(TAG, P) \
cc63eaf9 621 do { \
7eb5d3d7
KH		 622 (P)[0] = (char) (TAG >> 24); \
623 (P)[1] = (char) ((TAG >> 16) & 0xFF); \
624 (P)[2] = (char) ((TAG >> 8) & 0xFF); \
625 (P)[3] = (char) (TAG & 0xFF); \
16963817 626 (P)[4] = '\0'; \
cc63eaf9
KH		 627 } while (0)
628
e302a291
KH		 629#define OTF_TAG_SYM(SYM, TAG) \
630 do { \
631 char str[5]; \
632 \
633 OTF_TAG_STR (TAG, str); \
634 (SYM) = font_intern_prop (str, 4, 1); \
635 } while (0)
636
637
cc63eaf9
KH		 638static struct OpenTypeSpec *
639ftfont_get_open_type_spec (Lisp_Object otf_spec)
640{
641 struct OpenTypeSpec *spec = malloc (sizeof (struct OpenTypeSpec));
642 Lisp_Object val;
643 int i, j, negative;
644
645 if (! spec)
646 return NULL;
16963817 647 spec->script = XCAR (otf_spec);
43f4f91c 648 if (! NILP (spec->script))
16963817
KH		 649 {
650 OTF_SYM_TAG (spec->script, spec->script_tag);
651 val = assq_no_quit (spec->script, Votf_script_alist);
652 if (CONSP (val) && SYMBOLP (XCDR (val)))
653 spec->script = XCDR (val);
654 else
655 spec->script = Qnil;
656 }
cc63eaf9 657 else
16963817 658 spec->script_tag = 0x44464C54; /* "DFLT" */
cc63eaf9
KH		 659 otf_spec = XCDR (otf_spec);
660 val = XCAR (otf_spec);
661 if (! NILP (val))
16963817 662 OTF_SYM_TAG (val, spec->langsys_tag);
cc63eaf9 663 else
16963817 664 spec->langsys_tag = 0;
cc63eaf9
KH		 665 spec->nfeatures[0] = spec->nfeatures[1] = 0;
666 for (i = 0; i < 2; i++)
667 {
668 Lisp_Object len;
669
2a46904e 670 otf_spec = XCDR (otf_spec);
cc63eaf9
KH		 671 if (NILP (otf_spec))
672 break;
673 val = XCAR (otf_spec);
674 if (NILP (val))
675 continue;
676 len = Flength (val);
677 spec->features[i] = malloc (sizeof (int) * XINT (len));
678 if (! spec->features[i])
679 {
680 if (i > 0 && spec->features[0])
681 free (spec->features[0]);
682 free (spec);
683 return NULL;
684 }
685 for (j = 0, negative = 0; CONSP (val); val = XCDR (val))
686 {
687 if (NILP (XCAR (val)))
688 negative = 1;
689 else
690 {
691 unsigned int tag;
692
693 OTF_SYM_TAG (XCAR (val), tag);
694 spec->features[i][j++] = negative ? tag & 0x80000000 : tag;
695 }
696 }
697 spec->nfeatures[i] = j;
698 }
699 return spec;
700}
701
e302a291 702static FcPattern *ftfont_spec_pattern P_ ((Lisp_Object, char *,
21988a08
KH		 703 struct OpenTypeSpec **));
704
42984a74 705static FcPattern *
e302a291 706ftfont_spec_pattern (spec, otlayout, otspec)
42984a74
KH		 707 Lisp_Object spec;
708 char *otlayout;
709 struct OpenTypeSpec **otspec;
c2f5bfd6 710{
21988a08 711 Lisp_Object tmp, extra;
c2f5bfd6
KH		 712 FcPattern *pattern = NULL;
713 FcCharSet *charset = NULL;
714 FcLangSet *langset = NULL;
42984a74
KH		 715 int n;
716 int dpi = -1;
bc9a2afe 717 int scalable = -1;
42984a74 718 Lisp_Object script = Qnil;
21988a08 719 Lisp_Object registry;
e302a291 720 int fc_charset_idx;
c2f5bfd6 721
42984a74
KH		 722 if ((n = FONT_SLANT_NUMERIC (spec)) >= 0
723 && n < 100)
63565713 724 /* Fontconfig doesn't support reverse-italic/obligue. */
42984a74
KH		 725 return NULL;
726
727 if (INTEGERP (AREF (spec, FONT_DPI_INDEX)))
728 dpi = XINT (AREF (spec, FONT_DPI_INDEX));
42984a74
KH		 729 if (INTEGERP (AREF (spec, FONT_AVGWIDTH_INDEX))
730 && XINT (AREF (spec, FONT_AVGWIDTH_INDEX)) == 0)
731 scalable = 1;
63565713 732
21988a08
KH		 733 registry = AREF (spec, FONT_REGISTRY_INDEX);
734 if (NILP (registry)
770835fd 735 || EQ (registry, Qascii_0)
21988a08 736 || EQ (registry, Qiso10646_1)
7b649478 737 || EQ (registry, Qunicode_bmp))
e302a291 738 fc_charset_idx = -1;
21988a08 739 else
c2f5bfd6 740 {
7d7ad10e
KH		 741 FcChar8 *lang;
742
e302a291
KH		 743 fc_charset_idx = ftfont_get_charset (registry);
744 if (fc_charset_idx < 0)
42984a74 745 return NULL;
e302a291
KH		 746 charset = fc_charset_table[fc_charset_idx].fc_charset;
747 lang = (FcChar8 *) fc_charset_table[fc_charset_idx].lang;
7d7ad10e
KH		 748 if (lang)
749 {
750 langset = FcLangSetCreate ();
751 if (! langset)
752 goto err;
753 FcLangSetAdd (langset, lang);
754 }
c2f5bfd6
KH		 755 }
756
cc63eaf9 757 otlayout[0] = '\0';
8daf5667
KH		 758 for (extra = AREF (spec, FONT_EXTRA_INDEX);
759 CONSP (extra); extra = XCDR (extra))
c2f5bfd6 760 {
8daf5667
KH		 761 Lisp_Object key, val;
762
42984a74
KH		 763 key = XCAR (XCAR (extra)), val = XCDR (XCAR (extra));
764 if (EQ (key, QCdpi))
765 dpi = XINT (val);
42984a74 766 else if (EQ (key, QClang))
c2f5bfd6 767 {
7d7ad10e
KH		 768 if (! langset)
769 langset = FcLangSetCreate ();
c2f5bfd6
KH		 770 if (! langset)
771 goto err;
8daf5667 772 if (SYMBOLP (val))
c2f5bfd6 773 {
8daf5667 774 if (! FcLangSetAdd (langset, SYMBOL_FcChar8 (val)))
c2f5bfd6
KH		 775 goto err;
776 }
777 else
8daf5667
KH		 778 for (; CONSP (val); val = XCDR (val))
779 if (SYMBOLP (XCAR (val))
780 && ! FcLangSetAdd (langset, SYMBOL_FcChar8 (XCAR (val))))
781 goto err;
c2f5bfd6 782 }
42984a74
KH		 783 else if (EQ (key, QCotf))
784 {
785 *otspec = ftfont_get_open_type_spec (val);
786 if (! *otspec)
787 return NULL;
788 strcat (otlayout, "otlayout:");
789 OTF_TAG_STR ((*otspec)->script_tag, otlayout + 9);
790 script = (*otspec)->script;
791 }
8daf5667
KH		 792 else if (EQ (key, QCscript))
793 script = val;
8daf5667
KH		 794 else if (EQ (key, QCscalable))
795 scalable = ! NILP (val);
796 }
c2f5bfd6 797
8daf5667
KH		 798 if (! NILP (script) && ! charset)
799 {
800 Lisp_Object chars = assq_no_quit (script, Vscript_representative_chars);
801
7c4bd58d 802 if (CONSP (chars) && CONSP (CDR (chars)))
8daf5667
KH		 803 {
804 charset = FcCharSetCreate ();
805 if (! charset)
806 goto err;
807 for (chars = XCDR (chars); CONSP (chars); chars = XCDR (chars))
808 if (CHARACTERP (XCAR (chars))
809 && ! FcCharSetAddChar (charset, XUINT (XCAR (chars))))
810 goto err;
c2f5bfd6
KH		 811 }
812 }
813
4ffe34a4 814 pattern = FcPatternCreate ();
706b6995
KH		 815 if (! pattern)
816 goto err;
706b6995 817 tmp = AREF (spec, FONT_FOUNDRY_INDEX);
42984a74 818 if (! NILP (tmp)
706b6995
KH		 819 && ! FcPatternAddString (pattern, FC_FOUNDRY, SYMBOL_FcChar8 (tmp)))
820 goto err;
318548be
KH		 821 tmp = AREF (spec, FONT_FAMILY_INDEX);
822 if (! NILP (tmp)
823 && ! FcPatternAddString (pattern, FC_FAMILY, SYMBOL_FcChar8 (tmp)))
824 goto err;
c2f5bfd6
KH		 825 if (charset
826 && ! FcPatternAddCharSet (pattern, FC_CHARSET, charset))
827 goto err;
828 if (langset
829 && ! FcPatternAddLangSet (pattern, FC_LANG, langset))
830 goto err;
bc9a2afe
KH		 831 if (dpi >= 0
832 && ! FcPatternAddDouble (pattern, FC_DPI, dpi))
833 goto err;
bc9a2afe 834 if (scalable >= 0
25a5d05b 835 && ! FcPatternAddBool (pattern, FC_SCALABLE, scalable ? FcTrue : FcFalse))
bc9a2afe 836 goto err;
7d7ad10e 837
42984a74 838 goto finish;
c2f5bfd6 839
42984a74
KH		 840 err:
841 /* We come here because of unexpected error in fontconfig API call
842 (usually insufficient memory). */
843 if (pattern)
844 {
845 FcPatternDestroy (pattern);
846 pattern = NULL;
847 }
848 if (*otspec)
849 {
850 if ((*otspec)->nfeatures[0] > 0)
851 free ((*otspec)->features[0]);
852 if ((*otspec)->nfeatures[1] > 0)
853 free ((*otspec)->features[1]);
854 free (*otspec);
855 *otspec = NULL;
856 }
857
858 finish:
42984a74 859 if (langset) FcLangSetDestroy (langset);
e302a291 860 if (charset && fc_charset_idx < 0) FcCharSetDestroy (charset);
42984a74
KH		 861 return pattern;
862}
863
864static Lisp_Object
865ftfont_list (frame, spec)
866 Lisp_Object frame, spec;
867{
99c4d65d 868 Lisp_Object val = Qnil, family, adstyle;
42984a74
KH		 869 int i;
870 FcPattern *pattern;
871 FcFontSet *fontset = NULL;
872 FcObjectSet *objset = NULL;
7c4bd58d
KH		 873 FcCharSet *charset;
874 Lisp_Object chars = Qnil;
875 FcResult result;
42984a74
KH		 876 char otlayout[15]; /* For "otlayout:XXXX" */
877 struct OpenTypeSpec *otspec = NULL;
5d376f74 878 int spacing = -1;
2a46904e 879
42984a74
KH		 880 if (! fc_initialized)
881 {
882 FcInit ();
883 fc_initialized = 1;
884 }
885
e302a291 886 pattern = ftfont_spec_pattern (spec, otlayout, &otspec);
42984a74
KH		 887 if (! pattern)
888 return Qnil;
7c4bd58d
KH		 889 if (FcPatternGetCharSet (pattern, FC_CHARSET, 0, &charset) != FcResultMatch)
890 {
891 val = assq_no_quit (QCscript, AREF (spec, FONT_EXTRA_INDEX));
892 if (! NILP (val))
893 {
894 val = assq_no_quit (XCDR (val), Vscript_representative_chars);
895 if (CONSP (val) && VECTORP (XCDR (val)))
896 chars = XCDR (val);
897 }
898 val = Qnil;
899 }
5d376f74
KH		 900 if (INTEGERP (AREF (spec, FONT_SPACING_INDEX)))
901 spacing = XINT (AREF (spec, FONT_SPACING_INDEX));
318548be
KH		 902 family = AREF (spec, FONT_FAMILY_INDEX);
903 if (! NILP (family))
904 {
905 Lisp_Object resolved;
906
7d7ad10e 907 resolved = ftfont_resolve_generic_family (family, pattern);
318548be
KH		 908 if (! NILP (resolved))
909 {
910 FcPatternDel (pattern, FC_FAMILY);
911 if (! FcPatternAddString (pattern, FC_FAMILY,
912 SYMBOL_FcChar8 (resolved)))
913 goto err;
914 }
915 }
99c4d65d
KH		 916 adstyle = AREF (spec, FONT_ADSTYLE_INDEX);
917 if (! NILP (adstyle) && SBYTES (SYMBOL_NAME (adstyle)) == 0)
918 adstyle = Qnil;
706b6995 919 objset = FcObjectSetBuild (FC_FOUNDRY, FC_FAMILY, FC_WEIGHT, FC_SLANT,
42984a74 920 FC_WIDTH, FC_PIXEL_SIZE, FC_SPACING, FC_SCALABLE,
99c4d65d 921 FC_STYLE, FC_FILE, FC_INDEX,
42984a74
KH		 922#ifdef FC_CAPABILITY
923 FC_CAPABILITY,
924#endif /* FC_CAPABILITY */
4ffe34a4
KH		 925#ifdef FC_FONTFORMAT
926 FC_FONTFORMAT,
927#endif
e907d979 928 NULL);
706b6995
KH		 929 if (! objset)
930 goto err;
7c4bd58d
KH		 931 if (! NILP (chars))
932 FcObjectSetAdd (objset, FC_CHARSET);
42984a74 933
318548be 934 fontset = FcFontList (NULL, pattern, objset);
7c4bd58d
KH		 935 if (! fontset || fontset->nfont == 0)
936 goto finish;
770835fd
KH		 937#if 0
938 /* Need fix because this finds any fonts. */
939 if (fontset->nfont == 0 && ! NILP (family))
940 {
941 /* Try maching with configuration. For instance, the
942 configuration may specify "Nimbus Mono L" as an alias of
943 "Courier". */
944 FcPattern *pat = FcPatternBuild (0, FC_FAMILY, FcTypeString,
945 SYMBOL_FcChar8 (family), NULL);
946 FcChar8 *fam;
947
948 if (FcConfigSubstitute (NULL, pat, FcMatchPattern) == FcTrue)
949 {
950 for (i = 0;
951 FcPatternGetString (pat, FC_FAMILY, i, &fam) == FcResultMatch;
952 i++)
953 {
954 FcPatternDel (pattern, FC_FAMILY);
955 FcPatternAddString (pattern, FC_FAMILY, fam);
956 FcFontSetDestroy (fontset);
957 fontset = FcFontList (NULL, pattern, objset);
1c0db158 958 if (fontset && fontset->nfont > 0)
770835fd
KH		 959 break;
960 }
961 }
962 }
963#endif
318548be 964 for (i = 0; i < fontset->nfont; i++)
bc5f6c42 965 {
318548be 966 Lisp_Object entity;
f63d54dc 967
5d376f74
KH		 968 if (spacing >= 0)
969 {
970 int this;
971
972 if ((FcPatternGetInteger (fontset->fonts[i], FC_SPACING, 0, &this)
973 == FcResultMatch)
974 && spacing != this)
975 continue;
976 }
977
bc5f6c42 978#ifdef FC_CAPABILITY
318548be
KH		 979 if (otlayout[0])
980 {
981 FcChar8 *this;
a85f724a 982
7c4bd58d
KH		 983 if (FcPatternGetString (fontset->fonts[i], FC_CAPABILITY, 0, &this)
984 != FcResultMatch
318548be
KH		 985 || ! strstr ((char *) this, otlayout))
986 continue;
987 }
bc5f6c42 988#endif /* FC_CAPABILITY */
cc63eaf9 989#ifdef HAVE_LIBOTF
318548be
KH		 990 if (otspec)
991 {
992 FcChar8 *file;
993 OTF *otf;
994
995 if (FcPatternGetString (fontset->fonts[i], FC_FILE, 0, &file)
996 != FcResultMatch)
997 continue;
998 otf = OTF_open ((char *) file);
999 if (! otf)
1000 continue;
1001 if (OTF_check_features (otf, 1,
1002 otspec->script_tag, otspec->langsys_tag,
1003 otspec->features[0],
1004 otspec->nfeatures[0]) != 1
1005 || OTF_check_features (otf, 0,
1006 otspec->script_tag, otspec->langsys_tag,
1007 otspec->features[1],
1008 otspec->nfeatures[1]) != 1)
1009 continue;
c2f5bfd6 1010 }
318548be 1011#endif /* HAVE_LIBOTF */
7c4bd58d
KH		 1012 if (VECTORP (chars))
1013 {
1014 int j;
1015
1016 if (FcPatternGetCharSet (fontset->fonts[i], FC_CHARSET, 0, &charset)
1017 != FcResultMatch)
1018 continue;
1019 for (j = 0; j < ASIZE (chars); j++)
1020 if (NATNUMP (AREF (chars, j))
1021 && FcCharSetHasChar (charset, XFASTINT (AREF (chars, j))))
1022 break;
1023 if (j == ASIZE (chars))
1024 continue;
1025 }
99c4d65d
KH		 1026 if (! NILP (adstyle))
1027 {
1028 Lisp_Object this_adstyle = get_adstyle_property (fontset->fonts[i]);
1029
1030 if (NILP (this_adstyle)
1031 || xstrcasecmp (SDATA (SYMBOL_NAME (adstyle)),
1032 SDATA (SYMBOL_NAME (this_adstyle))) != 0)
1033 continue;
1034 }
e302a291
KH		 1035 entity = ftfont_pattern_entity (fontset->fonts[i],
1036 AREF (spec, FONT_EXTRA_INDEX));
318548be
KH		 1037 if (! NILP (entity))
1038 val = Fcons (entity, val);
c2f5bfd6 1039 }
7c4bd58d 1040 val = Fnreverse (val);
c2f5bfd6
KH		 1041 goto finish;
1042
1043 err:
1044 /* We come here because of unexpected error in fontconfig API call
706b6995 1045 (usually insufficient memory). */
c2f5bfd6
KH		 1046 val = Qnil;
1047
1048 finish:
7c4bd58d 1049 font_add_log ("ftfont-list", spec, val);
c2f5bfd6
KH		 1050 if (objset) FcObjectSetDestroy (objset);
1051 if (fontset) FcFontSetDestroy (fontset);
c2f5bfd6 1052 if (pattern) FcPatternDestroy (pattern);
c2f5bfd6
KH		 1053 return val;
1054}
1055
8daf5667
KH		 1056static Lisp_Object
1057ftfont_match (frame, spec)
1058 Lisp_Object frame, spec;
1059{
a3c15670 1060 Lisp_Object entity = Qnil;
42984a74 1061 FcPattern *pattern, *match = NULL;
8daf5667 1062 FcResult result;
42984a74
KH		 1063 char otlayout[15]; /* For "otlayout:XXXX" */
1064 struct OpenTypeSpec *otspec = NULL;
8daf5667
KH		 1065
1066 if (! fc_initialized)
1067 {
1068 FcInit ();
1069 fc_initialized = 1;
1070 }
1071
e302a291 1072 pattern = ftfont_spec_pattern (spec, otlayout, &otspec);
42984a74 1073 if (! pattern)
8daf5667
KH		 1074 return Qnil;
1075
42984a74 1076 if (INTEGERP (AREF (spec, FONT_SIZE_INDEX)))
8daf5667 1077 {
42984a74 1078 FcValue value;
55082642 1079
42984a74
KH		 1080 value.type = FcTypeDouble;
1081 value.u.d = XINT (AREF (spec, FONT_SIZE_INDEX));
1082 FcPatternAdd (pattern, FC_PIXEL_SIZE, value, FcFalse);
1083 }
1084 if (FcConfigSubstitute (NULL, pattern, FcMatchPattern) == FcTrue)
1085 {
1086 FcDefaultSubstitute (pattern);
1087 match = FcFontMatch (NULL, pattern, &result);
1088 if (match)
8daf5667 1089 {
e302a291 1090 entity = ftfont_pattern_entity (match, AREF (spec, FONT_EXTRA_INDEX));
42984a74
KH		 1091 FcPatternDestroy (match);
1092 if (! NILP (AREF (spec, FONT_FAMILY_INDEX))
1093 && NILP (assq_no_quit (AREF (spec, FONT_FAMILY_INDEX),
1094 ftfont_generic_family_list))
1095 && NILP (Fstring_equal (AREF (spec, FONT_FAMILY_INDEX),
1096 AREF (entity, FONT_FAMILY_INDEX))))
1097 entity = Qnil;
8daf5667 1098 }
8daf5667 1099 }
42984a74 1100 FcPatternDestroy (pattern);
8daf5667 1101
318548be 1102 font_add_log ("ftfont-match", spec, entity);
8daf5667
KH		 1103 return entity;
1104}
1105
c2f5bfd6
KH		 1106static Lisp_Object
1107ftfont_list_family (frame)
1108 Lisp_Object frame;
1109{
76d126ec 1110 Lisp_Object list = Qnil;
c2f5bfd6
KH		 1111 FcPattern *pattern = NULL;
1112 FcFontSet *fontset = NULL;
1113 FcObjectSet *objset = NULL;
1114 int i;
1115
1116 if (! fc_initialized)
1117 {
1118 FcInit ();
1119 fc_initialized = 1;
1120 }
1121
1122 pattern = FcPatternCreate ();
1123 if (! pattern)
1124 goto finish;
706b6995 1125 objset = FcObjectSetBuild (FC_FAMILY, NULL);
c2f5bfd6
KH		 1126 if (! objset)
1127 goto finish;
1128 fontset = FcFontList (NULL, pattern, objset);
1129 if (! fontset)
1130 goto finish;
1131
c2f5bfd6
KH		 1132 for (i = 0; i < fontset->nfont; i++)
1133 {
1134 FcPattern *pat = fontset->fonts[i];
1135 FcChar8 *str;
1136
1137 if (FcPatternGetString (pat, FC_FAMILY, 0, &str) == FcResultMatch)
42984a74 1138 list = Fcons (intern ((char *) str), list);
c2f5bfd6
KH		 1139 }
1140
1141 finish:
1142 if (objset) FcObjectSetDestroy (objset);
1143 if (fontset) FcFontSetDestroy (fontset);
1144 if (pattern) FcPatternDestroy (pattern);
1145
1146 return list;
1147}
1148
1149
42984a74 1150static Lisp_Object
c2f5bfd6
KH		 1151ftfont_open (f, entity, pixel_size)
1152 FRAME_PTR f;
1153 Lisp_Object entity;
1154 int pixel_size;
1155{
1156 struct ftfont_info *ftfont_info;
1157 struct font *font;
e302a291 1158 struct ftfont_cache_data *cache_data;
c2f5bfd6
KH		 1159 FT_Face ft_face;
1160 FT_Size ft_size;
1161 FT_UInt size;
e302a291 1162 Lisp_Object val, filename, index, cache, font_object;
21988a08 1163 int scalable;
c2f5bfd6 1164 int spacing;
42984a74
KH		 1165 char name[256];
1166 int i, len;
1167 int upEM;
c2f5bfd6 1168
42984a74
KH		 1169 val = assq_no_quit (QCfont_entity, AREF (entity, FONT_EXTRA_INDEX));
1170 if (! CONSP (val))
1171 return Qnil;
1172 val = XCDR (val);
99c4d65d 1173 cache = ftfont_lookup_cache (entity, 1);
21988a08
KH		 1174 if (NILP (cache))
1175 return Qnil;
e302a291
KH		 1176 filename = XCAR (val);
1177 index = XCDR (val);
21988a08 1178 val = XCDR (cache);
e302a291
KH		 1179 cache_data = XSAVE_VALUE (XCDR (cache))->pointer;
1180 ft_face = cache_data->ft_face;
21988a08 1181 if (XSAVE_VALUE (val)->integer > 0)
c2f5bfd6 1182 {
21988a08 1183 /* FT_Face in this cache is already used by the different size. */
c2f5bfd6 1184 if (FT_New_Size (ft_face, &ft_size) != 0)
42984a74 1185 return Qnil;
c2f5bfd6
KH		 1186 if (FT_Activate_Size (ft_size) != 0)
1187 {
1188 FT_Done_Size (ft_size);
42984a74 1189 return Qnil;
c2f5bfd6 1190 }
21988a08
KH		 1191 }
1192 XSAVE_VALUE (val)->integer++;
c2f5bfd6
KH		 1193 size = XINT (AREF (entity, FONT_SIZE_INDEX));
1194 if (size == 0)
1195 size = pixel_size;
1196 if (FT_Set_Pixel_Sizes (ft_face, size, size) != 0)
1197 {
1198 if (XSAVE_VALUE (val)->integer == 0)
1199 FT_Done_Face (ft_face);
42984a74 1200 return Qnil;
c2f5bfd6
KH		 1201 }
1202
e302a291 1203 font_object = font_make_object (VECSIZE (struct ftfont_info), entity, size);
42984a74 1204 ASET (font_object, FONT_TYPE_INDEX, Qfreetype);
42984a74
KH		 1205 len = font_unparse_xlfd (entity, size, name, 256);
1206 if (len > 0)
3299c552 1207 ASET (font_object, FONT_NAME_INDEX, make_string (name, len));
42984a74
KH		 1208 len = font_unparse_fcname (entity, size, name, 256);
1209 if (len > 0)
3299c552 1210 ASET (font_object, FONT_FULLNAME_INDEX, make_string (name, len));
42984a74
KH		 1211 else
1212 ASET (font_object, FONT_FULLNAME_INDEX,
1213 AREF (font_object, FONT_NAME_INDEX));
21988a08 1214 ASET (font_object, FONT_FILE_INDEX, filename);
7d7ad10e 1215 ASET (font_object, FONT_FORMAT_INDEX, ftfont_font_format (NULL, filename));
42984a74
KH		 1216 font = XFONT_OBJECT (font_object);
1217 ftfont_info = (struct ftfont_info *) font;
21988a08 1218 ftfont_info->ft_size = ft_face->size;
e302a291 1219 ftfont_info->index = XINT (index);
0d674a05 1220#ifdef HAVE_LIBOTF
de023c40
KH		 1221 ftfont_info->maybe_otf = ft_face->face_flags & FT_FACE_FLAG_SFNT;
1222 ftfont_info->otf = NULL;
0d674a05 1223#endif /* HAVE_LIBOTF */
c2f5bfd6
KH		 1224 font->pixel_size = size;
1225 font->driver = &ftfont_driver;
42984a74 1226 font->encoding_charset = font->repertory_charset = -1;
c9c0c429 1227
42984a74 1228 upEM = ft_face->units_per_EM;
21988a08
KH		 1229 scalable = (INTEGERP (AREF (entity, FONT_AVGWIDTH_INDEX))
1230 && XINT (AREF (entity, FONT_AVGWIDTH_INDEX)) == 0);
42984a74
KH		 1231 if (scalable)
1232 {
1233 font->ascent = ft_face->ascender * size / upEM;
1234 font->descent = - ft_face->descender * size / upEM;
1235 font->height = ft_face->height * size / upEM;
1236 }
1237 else
1238 {
1239 font->ascent = ft_face->size->metrics.ascender >> 6;
1240 font->descent = - ft_face->size->metrics.descender >> 6;
1241 font->height = ft_face->size->metrics.height >> 6;
c9c0c429 1242 }
21988a08
KH		 1243 if (INTEGERP (AREF (entity, FONT_SPACING_INDEX)))
1244 spacing = XINT (AREF (entity, FONT_SPACING_INDEX));
1245 else
c9c0c429
KH		 1246 spacing = FC_PROPORTIONAL;
1247 if (spacing != FC_PROPORTIONAL)
42984a74
KH		 1248 font->min_width = font->average_width = font->space_width
1249 = (scalable ? ft_face->max_advance_width * size / upEM
1250 : ft_face->size->metrics.max_advance >> 6);
c2f5bfd6
KH		 1251 else
1252 {
42984a74 1253 int n;
c2f5bfd6 1254
42984a74
KH		 1255 font->min_width = font->average_width = font->space_width = 0;
1256 for (i = 32, n = 0; i < 127; i++)
0c26f026 1257 if (FT_Load_Char (ft_face, i, FT_LOAD_DEFAULT) == 0)
42984a74
KH		 1258 {
1259 int this_width = ft_face->glyph->metrics.horiAdvance >> 6;
1260
1261 if (this_width > 0
1262 && (! font->min_width || font->min_width > this_width))
1263 font->min_width = this_width;
1264 if (i == 32)
1265 font->space_width = this_width;
1266 font->average_width += this_width;
1267 n++;
1268 }
1269 if (n > 0)
1270 font->average_width /= n;
c2f5bfd6
KH		 1271 }
1272
42984a74
KH		 1273 font->baseline_offset = 0;
1274 font->relative_compose = 0;
1275 font->default_ascent = 0;
1276 font->vertical_centering = 0;
1277 if (scalable)
1278 {
1279 font->underline_position = -ft_face->underline_position * size / upEM;
0c26f026 1280 font->underline_thickness = ft_face->underline_thickness * size / upEM;
42984a74
KH		 1281 }
1282 else
1283 {
1284 font->underline_position = -1;
1285 font->underline_thickness = 0;
1286 }
c2f5bfd6 1287
42984a74 1288 return font_object;
c2f5bfd6
KH		 1289}
1290
1291static void
1292ftfont_close (f, font)
1293 FRAME_PTR f;
1294 struct font *font;
1295{
1296 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
21988a08 1297 Lisp_Object val, cache;
c2f5bfd6 1298
e302a291
KH		 1299 val = Fcons (font->props[FONT_FILE_INDEX], make_number (ftfont_info->index));
1300 cache = ftfont_lookup_cache (val, 1);
1301 xassert (CONSP (cache));
21988a08 1302 val = XCDR (cache);
c2f5bfd6
KH		 1303 (XSAVE_VALUE (val)->integer)--;
1304 if (XSAVE_VALUE (val)->integer == 0)
de023c40 1305 {
e302a291 1306 struct ftfont_cache_data *cache_data = XSAVE_VALUE (val)->pointer;
21988a08 1307
e302a291 1308 FT_Done_Face (cache_data->ft_face);
de023c40
KH		 1309#ifdef HAVE_LIBOTF
1310 if (ftfont_info->otf)
1311 OTF_close (ftfont_info->otf);
1312#endif
e302a291 1313 cache_data->ft_face = NULL;
de023c40 1314 }
c2f5bfd6
KH		 1315 else
1316 FT_Done_Size (ftfont_info->ft_size);
c2f5bfd6
KH		 1317}
1318
2a46904e 1319static int
7179ce7b
KH		 1320ftfont_has_char (font, c)
1321 Lisp_Object font;
c2f5bfd6
KH		 1322 int c;
1323{
7179ce7b
KH		 1324 if (FONT_ENTITY_P (font))
1325 {
1326 FcCharSet *charset = ftfont_get_fc_charset (font);
c2f5bfd6 1327
7179ce7b
KH		 1328 return (FcCharSetHasChar (charset, c) == FcTrue);
1329 }
1330 else
1331 {
1332 struct ftfont_info *ftfont_info;
1333
1334 ftfont_info = (struct ftfont_info *) XFONT_OBJECT (font);
1335 return (FT_Get_Char_Index (ftfont_info->ft_size->face, (FT_ULong) c)
1336 != 0);
1337 }
c2f5bfd6
KH		 1338}
1339
1340static unsigned
1341ftfont_encode_char (font, c)
1342 struct font *font;
1343 int c;
1344{
1345 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
1346 FT_Face ft_face = ftfont_info->ft_size->face;
1347 FT_ULong charcode = c;
1348 FT_UInt code = FT_Get_Char_Index (ft_face, charcode);
1349
4cec6061 1350 return (code > 0 ? code : FONT_INVALID_CODE);
c2f5bfd6
KH		 1351}
1352
1353static int
1354ftfont_text_extents (font, code, nglyphs, metrics)
1355 struct font *font;
1356 unsigned *code;
1357 int nglyphs;
1358 struct font_metrics *metrics;
1359{
1360 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
1361 FT_Face ft_face = ftfont_info->ft_size->face;
1362 int width = 0;
e5d05978 1363 int i, first;
c2f5bfd6
KH		 1364
1365 if (ftfont_info->ft_size != ft_face->size)
1366 FT_Activate_Size (ftfont_info->ft_size);
1367 if (metrics)
1368 bzero (metrics, sizeof (struct font_metrics));
e5d05978 1369 for (i = 0, first = 1; i < nglyphs; i++)
c2f5bfd6
KH		 1370 {
1371 if (FT_Load_Glyph (ft_face, code[i], FT_LOAD_DEFAULT) == 0)
1372 {
1373 FT_Glyph_Metrics *m = &ft_face->glyph->metrics;
1374
e5d05978
KH		 1375 if (first)
1376 {
1377 if (metrics)
1378 {
1379 metrics->lbearing = m->horiBearingX >> 6;
1380 metrics->rbearing = (m->horiBearingX + m->width) >> 6;
1381 metrics->ascent = m->horiBearingY >> 6;
57d3b93b 1382 metrics->descent = (m->height - m->horiBearingY) >> 6;
e5d05978
KH		 1383 }
1384 first = 0;
1385 }
c2f5bfd6
KH		 1386 if (metrics)
1387 {
1388 if (metrics->lbearing > width + (m->horiBearingX >> 6))
1389 metrics->lbearing = width + (m->horiBearingX >> 6);
1390 if (metrics->rbearing
1391 < width + ((m->horiBearingX + m->width) >> 6))
1392 metrics->rbearing
1393 = width + ((m->horiBearingX + m->width) >> 6);
1394 if (metrics->ascent < (m->horiBearingY >> 6))
1395 metrics->ascent = m->horiBearingY >> 6;
57d3b93b
KH		 1396 if (metrics->descent > ((m->height - m->horiBearingY) >> 6))
1397 metrics->descent = (m->height - m->horiBearingY) >> 6;
c2f5bfd6
KH		 1398 }
1399 width += m->horiAdvance >> 6;
1400 }
1401 else
1402 {
42984a74 1403 width += font->space_width;
c2f5bfd6
KH		 1404 }
1405 }
1406 if (metrics)
1407 metrics->width = width;
1408
1409 return width;
1410}
1411
1412static int
1413ftfont_get_bitmap (font, code, bitmap, bits_per_pixel)
1414 struct font *font;
1415 unsigned code;
1416 struct font_bitmap *bitmap;
1417 int bits_per_pixel;
1418{
1419 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
1420 FT_Face ft_face = ftfont_info->ft_size->face;
1421 FT_Int32 load_flags = FT_LOAD_RENDER;
1422
1423 if (ftfont_info->ft_size != ft_face->size)
1424 FT_Activate_Size (ftfont_info->ft_size);
1425 if (bits_per_pixel == 1)
1426 {
1427#ifdef FT_LOAD_TARGET_MONO
1428 load_flags |= FT_LOAD_TARGET_MONO;
1429#else
1430 load_flags |= FT_LOAD_MONOCHROME;
1431#endif
1432 }
1433 else if (bits_per_pixel != 8)
1434 /* We don't support such a rendering. */
1435 return -1;
1436
1437 if (FT_Load_Glyph (ft_face, code, load_flags) != 0)
1438 return -1;
b51e5112
KH		 1439 bitmap->bits_per_pixel
1440 = (ft_face->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_MONO ? 1
1441 : ft_face->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_GRAY ? 8
1442 : ft_face->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_LCD ? 8
1443 : ft_face->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_LCD_V ? 8
1444 : -1);
1445 if (bitmap->bits_per_pixel < 0)
1446 /* We don't suport that kind of pixel mode. */
1447 return -1;
c2f5bfd6
KH		 1448 bitmap->rows = ft_face->glyph->bitmap.rows;
1449 bitmap->width = ft_face->glyph->bitmap.width;
1450 bitmap->pitch = ft_face->glyph->bitmap.pitch;
1451 bitmap->buffer = ft_face->glyph->bitmap.buffer;
1452 bitmap->left = ft_face->glyph->bitmap_left;
1453 bitmap->top = ft_face->glyph->bitmap_top;
1454 bitmap->advance = ft_face->glyph->metrics.horiAdvance >> 6;
1455 bitmap->extra = NULL;
1456
1457 return 0;
1458}
1459
1460static int
1461ftfont_anchor_point (font, code, index, x, y)
1462 struct font *font;
1463 unsigned code;
1464 int index;
1465 int *x, *y;
1466{
1467 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
1468 FT_Face ft_face = ftfont_info->ft_size->face;
1469
1470 if (ftfont_info->ft_size != ft_face->size)
1471 FT_Activate_Size (ftfont_info->ft_size);
1472 if (FT_Load_Glyph (ft_face, code, FT_LOAD_DEFAULT) != 0)
1473 return -1;
1474 if (ft_face->glyph->format != FT_GLYPH_FORMAT_OUTLINE)
1475 return -1;
1476 if (index >= ft_face->glyph->outline.n_points)
1477 return -1;
1478 *x = ft_face->glyph->outline.points[index].x;
1479 *y = ft_face->glyph->outline.points[index].y;
1480 return 0;
1481}
1482
de023c40 1483#ifdef HAVE_LIBOTF
e302a291
KH		 1484
1485static Lisp_Object
1486ftfont_otf_features (gsub_gpos)
1487 OTF_GSUB_GPOS *gsub_gpos;
1488{
1489 Lisp_Object scripts, langsyses, features, sym;
39356621 1490 int i, j, k, l;
e302a291
KH		 1491
1492 for (scripts = Qnil, i = gsub_gpos->ScriptList.ScriptCount - 1; i >= 0; i--)
1493 {
1494 OTF_Script *otf_script = gsub_gpos->ScriptList.Script + i;
1495
1496 for (langsyses = Qnil, j = otf_script->LangSysCount - 1; j >= -1; j--)
1497 {
1498 OTF_LangSys *otf_langsys;
1499
1500 if (j >= 0)
1501 otf_langsys = otf_script->LangSys + j;
1502 else if (otf_script->DefaultLangSysOffset)
1503 otf_langsys = &otf_script->DefaultLangSys;
1504 else
1505 break;
1506
1507 for (features = Qnil, k = otf_langsys->FeatureCount - 1; k >= 0; k--)
1508 {
39356621 1509 l = otf_langsys->FeatureIndex[k];
064766f2 1510 if (l >= gsub_gpos->FeatureList.FeatureCount)
39356621
KH		 1511 continue;
1512 OTF_TAG_SYM (sym, gsub_gpos->FeatureList.Feature[l].FeatureTag);
e302a291
KH		 1513 features = Fcons (sym, features);
1514 }
1515 if (j >= 0)
1516 OTF_TAG_SYM (sym, otf_script->LangSysRecord[j].LangSysTag);
1517 else
1518 sym = Qnil;
1519 langsyses = Fcons (Fcons (sym, features), langsyses);
1520 }
8510724d 1521
e302a291
KH		 1522 OTF_TAG_SYM (sym, gsub_gpos->ScriptList.Script[i].ScriptTag);
1523 scripts = Fcons (Fcons (sym, langsyses), scripts);
1524 }
1525 return scripts;
1526
1527}
1528
1529
1530static Lisp_Object
1531ftfont_otf_capability (font)
1532 struct font *font;
1533{
1534 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
1535 OTF *otf = ftfont_get_otf (ftfont_info);
1536 Lisp_Object gsub_gpos;
1537
1538 if (! otf)
1539 return Qnil;
1540 gsub_gpos = Fcons (Qnil, Qnil);
064766f2
KH		 1541 if (OTF_get_table (otf, "GSUB") == 0
1542 && otf->gsub->FeatureList.FeatureCount > 0)
e302a291 1543 XSETCAR (gsub_gpos, ftfont_otf_features (otf->gsub));
064766f2
KH		 1544 if (OTF_get_table (otf, "GPOS") == 0
1545 && otf->gpos->FeatureList.FeatureCount > 0)
e302a291
KH		 1546 XSETCDR (gsub_gpos, ftfont_otf_features (otf->gpos));
1547 return gsub_gpos;
1548}
1549
de023c40
KH		 1550#ifdef HAVE_M17N_FLT
1551
1552struct MFLTFontFT
1553{
1554 MFLTFont flt_font;
1555 struct font *font;
1556 FT_Face ft_face;
1557 OTF *otf;
1558};
1559
1560static int
1561ftfont_get_glyph_id (font, gstring, from, to)
1562 MFLTFont *font;
1563 MFLTGlyphString *gstring;
1564 int from, to;
1565{
1566 struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font;
1567 FT_Face ft_face = flt_font_ft->ft_face;
1568 MFLTGlyph *g;
1569
1570 for (g = gstring->glyphs + from; from < to; g++, from++)
1571 if (! g->encoded)
1572 {
1573 FT_UInt code = FT_Get_Char_Index (ft_face, g->code);
1574
1575 g->code = code > 0 ? code : FONT_INVALID_CODE;
1576 g->encoded = 1;
1577 }
1578 return 0;
1579}
1580
1581static int
1582ftfont_get_metrics (font, gstring, from, to)
1583 MFLTFont *font;
1584 MFLTGlyphString *gstring;
1585 int from, to;
1586{
1587 struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font;
1588 FT_Face ft_face = flt_font_ft->ft_face;
1589 MFLTGlyph *g;
1590
1591 for (g = gstring->glyphs + from; from < to; g++, from++)
1592 if (! g->measured)
1593 {
1594 if (g->code != FONT_INVALID_CODE)
1595 {
1596 FT_Glyph_Metrics *m;
1597
1598 if (FT_Load_Glyph (ft_face, g->code, FT_LOAD_DEFAULT) != 0)
1599 abort ();
1600 m = &ft_face->glyph->metrics;
1601
1602 g->lbearing = m->horiBearingX;
1603 g->rbearing = m->horiBearingX + m->width;
1604 g->ascent = m->horiBearingY;
1605 g->descent = m->height - m->horiBearingY;
1606 g->xadv = m->horiAdvance;
1607 }
1608 else
1609 {
1610 g->lbearing = 0;
42984a74 1611 g->rbearing = g->xadv = flt_font_ft->font->space_width << 6;
de023c40
KH		 1612 g->ascent = flt_font_ft->font->ascent << 6;
1613 g->descent = flt_font_ft->font->descent << 6;
1614 }
1615 g->yadv = 0;
1616 g->measured = 1;
1617 }
1618 return 0;
1619}
1620
2a46904e 1621static int
de023c40
KH		 1622ftfont_check_otf (MFLTFont *font, MFLTOtfSpec *spec)
1623{
1624 struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font;
1625 OTF *otf = flt_font_ft->otf;
1626 OTF_Tag *tags;
1627 int i, n, negative;
1628
1629 for (i = 0; i < 2; i++)
1630 {
1631 if (! spec->features[i])
1632 continue;
1633 for (n = 0; spec->features[i][n]; n++);
1634 tags = alloca (sizeof (OTF_Tag) * n);
1635 for (n = 0, negative = 0; spec->features[i][n]; n++)
1636 {
1637 if (spec->features[i][n] == 0xFFFFFFFF)
1638 negative = 1;
1639 else if (negative)
1640 tags[n - 1] = spec->features[i][n] | 0x80000000;
1641 else
1642 tags[n] = spec->features[i][n];
1643 }
1644 if (n - negative > 0
1645 && OTF_check_features (otf, i == 0, spec->script, spec->langsys,
1646 tags, n - negative) != 1)
1647 return 0;
1648 }
1649 return 1;
1650}
1651
1652#define DEVICE_DELTA(table, size) \
1653 (((size) >= (table).StartSize && (size) <= (table).EndSize) \
1654 ? (table).DeltaValue[(size) - (table).StartSize] << 6 \
1655 : 0)
1656
1657static void
1658adjust_anchor (FT_Face ft_face, OTF_Anchor *anchor,
1659 unsigned code, int x_ppem, int y_ppem, int *x, int *y)
1660{
1661 if (anchor->AnchorFormat == 2)
1662 {
1663 FT_Outline *outline;
1664 int ap = anchor->f.f1.AnchorPoint;
1665
1666 FT_Load_Glyph (ft_face, (FT_UInt) code, FT_LOAD_MONOCHROME);
1667 outline = &ft_face->glyph->outline;
1668 if (ap < outline->n_points)
1669 {
1670 *x = outline->points[ap].x << 6;
1671 *y = outline->points[ap].y << 6;
1672 }
1673 }
1674 else if (anchor->AnchorFormat == 3)
1675 {
d90bfd1c
KH		 1676 if (anchor->f.f2.XDeviceTable.offset
1677 && anchor->f.f2.XDeviceTable.DeltaValue)
de023c40 1678 *x += DEVICE_DELTA (anchor->f.f2.XDeviceTable, x_ppem);
d90bfd1c
KH		 1679 if (anchor->f.f2.YDeviceTable.offset
1680 && anchor->f.f2.YDeviceTable.DeltaValue)
de023c40
KH		 1681 *y += DEVICE_DELTA (anchor->f.f2.YDeviceTable, y_ppem);
1682 }
1683}
1684
1685static OTF_GlyphString otf_gstring;
1686
2b33f1ef
KH		 1687static void
1688setup_otf_gstring (int size)
1689{
1690 if (otf_gstring.size == 0)
1691 {
1692 otf_gstring.glyphs = (OTF_Glyph *) malloc (sizeof (OTF_Glyph) * size);
1693 otf_gstring.size = size;
1694 }
1695 else if (otf_gstring.size < size)
1696 {
1697 otf_gstring.glyphs = (OTF_Glyph *) realloc (otf_gstring.glyphs,
1698 sizeof (OTF_Glyph) * size);
1699 otf_gstring.size = size;
1700 }
1701 otf_gstring.used = size;
1702 memset (otf_gstring.glyphs, 0, sizeof (OTF_Glyph) * size);
1703}
1704
1705
2a46904e 1706static int
de023c40
KH		 1707ftfont_drive_otf (font, spec, in, from, to, out, adjustment)
1708 MFLTFont *font;
1709 MFLTOtfSpec *spec;
1710 MFLTGlyphString *in;
1711 int from, to;
1712 MFLTGlyphString *out;
1713 MFLTGlyphAdjustment *adjustment;
1714{
1715 struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font;
1716 FT_Face ft_face = flt_font_ft->ft_face;
1717 OTF *otf = flt_font_ft->otf;
1718 int len = to - from;
1719 int i, j, gidx;
1720 OTF_Glyph *otfg;
1721 char script[5], *langsys = NULL;
1722 char *gsub_features = NULL, *gpos_features = NULL;
1723
1724 if (len == 0)
1725 return from;
1726 OTF_tag_name (spec->script, script);
1727 if (spec->langsys)
1728 {
1729 langsys = alloca (5);
1730 OTF_tag_name (spec->langsys, langsys);
1731 }
1732 for (i = 0; i < 2; i++)
1733 {
1734 char *p;
1735
1736 if (spec->features[i] && spec->features[i][1] != 0xFFFFFFFF)
1737 {
1738 for (j = 0; spec->features[i][j]; j++);
1739 if (i == 0)
1740 p = gsub_features = alloca (6 * j);
1741 else
1742 p = gpos_features = alloca (6 * j);
1743 for (j = 0; spec->features[i][j]; j++)
1744 {
1745 if (spec->features[i][j] == 0xFFFFFFFF)
1746 *p++ = '*', *p++ = ',';
1747 else
1748 {
1749 OTF_tag_name (spec->features[i][j], p);
1750 p[4] = ',';
1751 p += 5;
1752 }
1753 }
1754 *--p = '\0';
1755 }
1756 }
1757
2b33f1ef 1758 setup_otf_gstring (len);
de023c40
KH		 1759 for (i = 0; i < len; i++)
1760 {
1761 otf_gstring.glyphs[i].c = in->glyphs[from + i].c;
1762 otf_gstring.glyphs[i].glyph_id = in->glyphs[from + i].code;
1763 }
1764
1765 OTF_drive_gdef (otf, &otf_gstring);
1766 gidx = out->used;
1767
1768 if (gsub_features)
1769 {
1770 if (OTF_drive_gsub (otf, &otf_gstring, script, langsys, gsub_features)
1771 < 0)
1772 goto simple_copy;
1773 if (out->allocated < out->used + otf_gstring.used)
1774 return -2;
7d2fd545 1775 for (i = 0, otfg = otf_gstring.glyphs; i < otf_gstring.used; )
de023c40 1776 {
7d2fd545
KH		 1777 MFLTGlyph *g;
1778 int min_from, max_to;
de023c40
KH		 1779 int j;
1780
7d2fd545 1781 g = out->glyphs + out->used;
de023c40 1782 *g = in->glyphs[from + otfg->f.index.from];
de023c40
KH		 1783 if (g->code != otfg->glyph_id)
1784 {
7d2fd545 1785 g->c = 0;
de023c40
KH		 1786 g->code = otfg->glyph_id;
1787 g->measured = 0;
1788 }
1789 out->used++;
7d2fd545
KH		 1790 min_from = g->from;
1791 max_to = g->to;
1792 if (otfg->f.index.from < otfg->f.index.to)
1793 {
1794 /* OTFG substitutes multiple glyphs in IN. */
1795 for (j = from + otfg->f.index.from + 1;
1796 j <= from + otfg->f.index.to; j++)
1797 {
1798 if (min_from > in->glyphs[j].from)
1799 min_from = in->glyphs[j].from;
1800 if (max_to < in->glyphs[j].to)
1801 max_to = in->glyphs[j].to;
1802 }
1803 g->from = min_from;
1804 g->to = max_to;
1805 }
1806 for (i++, otfg++; (i < otf_gstring.used
1807 && otfg->f.index.from == otfg[-1].f.index.from);
1808 i++, otfg++)
1809 {
1810 g = out->glyphs + out->used;
1811 *g = in->glyphs[from + otfg->f.index.to];
1812 if (g->code != otfg->glyph_id)
1813 {
1814 g->c = 0;
1815 g->code = otfg->glyph_id;
1816 g->measured = 0;
1817 }
1818 out->used++;
1819 }
de023c40
KH		 1820 }
1821 }
1822 else
1823 {
1824 if (out->allocated < out->used + len)
1825 return -2;
1826 for (i = 0; i < len; i++)
1827 out->glyphs[out->used++] = in->glyphs[from + i];
1828 }
1829
1830 if (gpos_features)
1831 {
1832 MFLTGlyph *base = NULL, *mark = NULL, *g;
1833 int x_ppem, y_ppem, x_scale, y_scale;
1834
1835 if (OTF_drive_gpos (otf, &otf_gstring, script, langsys, gpos_features)
1836 < 0)
1837 return to;
1838
1839 x_ppem = ft_face->size->metrics.x_ppem;
1840 y_ppem = ft_face->size->metrics.y_ppem;
1841 x_scale = ft_face->size->metrics.x_scale;
1842 y_scale = ft_face->size->metrics.y_scale;
1843
1844 for (i = 0, otfg = otf_gstring.glyphs, g = out->glyphs + gidx;
1845 i < otf_gstring.used; i++, otfg++, g++)
1846 {
1847 MFLTGlyph *prev;
1848
1849 if (! otfg->glyph_id)
1850 continue;
1851 switch (otfg->positioning_type)
1852 {
1853 case 0:
1854 break;
1855 case 1: /* Single */
1856 case 2: /* Pair */
1857 {
1858 int format = otfg->f.f1.format;
1859
1860 if (format & OTF_XPlacement)
1861 adjustment[i].xoff
1862 = otfg->f.f1.value->XPlacement * x_scale / 0x10000;
1863 if (format & OTF_XPlaDevice)
1864 adjustment[i].xoff
1865 += DEVICE_DELTA (otfg->f.f1.value->XPlaDevice, x_ppem);
1866 if (format & OTF_YPlacement)
1867 adjustment[i].yoff
1868 = - (otfg->f.f1.value->YPlacement * y_scale / 0x10000);
1869 if (format & OTF_YPlaDevice)
1870 adjustment[i].yoff
1871 -= DEVICE_DELTA (otfg->f.f1.value->YPlaDevice, y_ppem);
1872 if (format & OTF_XAdvance)
1873 adjustment[i].xadv
1874 += otfg->f.f1.value->XAdvance * x_scale / 0x10000;
1875 if (format & OTF_XAdvDevice)
1876 adjustment[i].xadv
1877 += DEVICE_DELTA (otfg->f.f1.value->XAdvDevice, x_ppem);
1878 if (format & OTF_YAdvance)
1879 adjustment[i].yadv
1880 += otfg->f.f1.value->YAdvance * y_scale / 0x10000;
1881 if (format & OTF_YAdvDevice)
1882 adjustment[i].yadv
1883 += DEVICE_DELTA (otfg->f.f1.value->YAdvDevice, y_ppem);
1884 adjustment[i].set = 1;
1885 }
1886 break;
1887 case 3: /* Cursive */
1888 /* Not yet supported. */
1889 break;
1890 case 4: /* Mark-to-Base */
1891 case 5: /* Mark-to-Ligature */
1892 if (! base)
1893 break;
1894 prev = base;
1895 goto label_adjust_anchor;
1896 default: /* i.e. case 6 Mark-to-Mark */
1897 if (! mark)
1898 break;
1899 prev = mark;
1900
1901 label_adjust_anchor:
1902 {
1903 int base_x, base_y, mark_x, mark_y;
1904 int this_from, this_to;
1905
1906 base_x = otfg->f.f4.base_anchor->XCoordinate * x_scale / 0x10000;
1907 base_y = otfg->f.f4.base_anchor->YCoordinate * y_scale / 0x10000;
1908 mark_x = otfg->f.f4.mark_anchor->XCoordinate * x_scale / 0x10000;
8510724d 1909 mark_y = otfg->f.f4.mark_anchor->YCoordinate * y_scale / 0x10000;
de023c40
KH		 1910
1911 if (otfg->f.f4.base_anchor->AnchorFormat != 1)
1912 adjust_anchor (ft_face, otfg->f.f4.base_anchor,
1913 prev->code, x_ppem, y_ppem, &base_x, &base_y);
1914 if (otfg->f.f4.mark_anchor->AnchorFormat != 1)
1915 adjust_anchor (ft_face, otfg->f.f4.mark_anchor, g->code,
1916 x_ppem, y_ppem, &mark_x, &mark_y);
1917 adjustment[i].xoff = (base_x - mark_x);
1918 adjustment[i].yoff = - (base_y - mark_y);
1919 adjustment[i].back = (g - prev);
1920 adjustment[i].xadv = 0;
1921 adjustment[i].advance_is_absolute = 1;
1922 adjustment[i].set = 1;
1923 this_from = g->from;
1924 this_to = g->to;
1925 for (j = 0; prev + j < g; j++)
1926 {
1927 if (this_from > prev[j].from)
1928 this_from = prev[j].from;
1929 if (this_to < prev[j].to)
1930 this_to = prev[j].to;
1931 }
1932 for (; prev <= g; prev++)
1933 {
1934 prev->from = this_from;
1935 prev->to = this_to;
1936 }
1937 }
1938 }
1939 if (otfg->GlyphClass == OTF_GlyphClass0)
1940 base = mark = g;
1941 else if (otfg->GlyphClass == OTF_GlyphClassMark)
1942 mark = g;
1943 else
1944 base = g;
1945 }
1946 }
1947 return to;
1948
1949 simple_copy:
1950 if (out->allocated < out->used + len)
1951 return -2;
1952 font->get_metrics (font, in, from, to);
1953 memcpy (out->glyphs + out->used, in->glyphs + from,
1954 sizeof (MFLTGlyph) * len);
1955 out->used += len;
1956 return to;
1957}
1958
1959static MFLTGlyphString gstring;
1960
1961static int m17n_flt_initialized;
1962
1963extern Lisp_Object QCfamily;
1964
990a73f0 1965static Lisp_Object
de023c40
KH		 1966ftfont_shape_by_flt (lgstring, font, ft_face, otf)
1967 Lisp_Object lgstring;
1968 struct font *font;
1969 FT_Face ft_face;
1970 OTF *otf;
1971{
89a95b7c 1972 EMACS_UINT len = LGSTRING_GLYPH_LEN (lgstring);
de023c40
KH		 1973 EMACS_UINT i;
1974 struct MFLTFontFT flt_font_ft;
da2cf488 1975 MFLT *flt = NULL;
2b33f1ef 1976 int with_variation_selector = 0;
de023c40
KH		 1977
1978 if (! m17n_flt_initialized)
1979 {
1980 M17N_INIT ();
1981 m17n_flt_initialized = 1;
1982 }
1983
1984 for (i = 0; i < len; i++)
2b33f1ef
KH		 1985 {
1986 Lisp_Object g = LGSTRING_GLYPH (lgstring, i);
1987 int c;
1988
1989 if (NILP (g))
1990 break;
1991 c = LGLYPH_CHAR (g);
1992 if (CHAR_VARIATION_SELECTOR_P (c))
1993 with_variation_selector++;
1994 }
de023c40 1995 len = i;
2b33f1ef
KH		 1996 if (with_variation_selector)
1997 {
1998 setup_otf_gstring (len);
1999 for (i = 0; i < len; i++)
2000 {
2001 Lisp_Object g = LGSTRING_GLYPH (lgstring, i);
2002
2003 otf_gstring.glyphs[i].c = LGLYPH_CHAR (g);
2004 otf_gstring.glyphs[i].f.index.from = LGLYPH_FROM (g);
2005 otf_gstring.glyphs[i].f.index.to = LGLYPH_TO (g);
2006 }
2007 OTF_drive_cmap (otf, &otf_gstring);
2008 for (i = 0; i < otf_gstring.used; i++)
2009 {
2010 OTF_Glyph *otfg = otf_gstring.glyphs + i;
2011 Lisp_Object g0 = LGSTRING_GLYPH (lgstring, otfg->f.index.from);
2012 Lisp_Object g1 = LGSTRING_GLYPH (lgstring, otfg->f.index.to);
2013
2014 LGLYPH_SET_CODE (g0, otfg->glyph_id);
2015 LGLYPH_SET_TO (g0, LGLYPH_TO (g1));
2016 LGSTRING_SET_GLYPH (lgstring, i, g0);
2017 }
2018 if (len > otf_gstring.used)
2019 {
2020 len = otf_gstring.used;
2021 LGSTRING_SET_GLYPH (lgstring, len, Qnil);
2022 }
2023 }
de023c40
KH		 2024
2025 if (gstring.allocated == 0)
2026 {
2027 gstring.allocated = len * 2;
2028 gstring.glyph_size = sizeof (MFLTGlyph);
2029 gstring.glyphs = malloc (sizeof (MFLTGlyph) * gstring.allocated);
2030 }
2031 else if (gstring.allocated < len * 2)
2032 {
2033 gstring.allocated = len * 2;
2034 gstring.glyphs = realloc (gstring.glyphs,
2035 sizeof (MFLTGlyph) * gstring.allocated);
2036 }
2b33f1ef 2037 memset (gstring.glyphs, 0, sizeof (MFLTGlyph) * len);
de023c40 2038 for (i = 0; i < len; i++)
2b33f1ef
KH		 2039 {
2040 Lisp_Object g = LGSTRING_GLYPH (lgstring, i);
2041
2042 gstring.glyphs[i].c = LGLYPH_CHAR (g);
2043 if (with_variation_selector)
2044 {
2045 gstring.glyphs[i].code = LGLYPH_CODE (g);
2046 gstring.glyphs[i].encoded = 1;
2047 }
2048 }
2049
de023c40
KH		 2050 gstring.used = len;
2051 gstring.r2l = 0;
2052
2053 {
2054 Lisp_Object family = Ffont_get (LGSTRING_FONT (lgstring), QCfamily);
2055
2056 if (NILP (family))
2057 flt_font_ft.flt_font.family = Mnil;
2058 else
21988a08 2059 flt_font_ft.flt_font.family
fdf90679 2060 = msymbol ((char *) SDATA (Fdowncase (SYMBOL_NAME (family))));
de023c40
KH		 2061 }
2062 flt_font_ft.flt_font.x_ppem = ft_face->size->metrics.x_ppem;
2063 flt_font_ft.flt_font.y_ppem = ft_face->size->metrics.y_ppem;
2064 flt_font_ft.flt_font.get_glyph_id = ftfont_get_glyph_id;
2065 flt_font_ft.flt_font.get_metrics = ftfont_get_metrics;
2066 flt_font_ft.flt_font.check_otf = ftfont_check_otf;
2067 flt_font_ft.flt_font.drive_otf = ftfont_drive_otf;
2068 flt_font_ft.flt_font.internal = NULL;
2069 flt_font_ft.font = font;
2070 flt_font_ft.ft_face = ft_face;
2071 flt_font_ft.otf = otf;
7bf1bb21
KH		 2072 if (len > 1
2073 && gstring.glyphs[1].c >= 0x300 && gstring.glyphs[1].c <= 0x36F)
da2cf488
KH		 2074 /* A little bit ad hoc. Perhaps, shaper must get script and
2075 language information, and select a proper flt for them
2076 here. */
2077 flt = mflt_get (msymbol ("combining"));
de023c40
KH		 2078 for (i = 0; i < 3; i++)
2079 {
da2cf488 2080 int result = mflt_run (&gstring, 0, len, &flt_font_ft.flt_font, flt);
de023c40
KH		 2081 if (result != -2)
2082 break;
2083 gstring.allocated += gstring.allocated;
2084 gstring.glyphs = realloc (gstring.glyphs,
2085 sizeof (MFLTGlyph) * gstring.allocated);
2086 }
89a95b7c 2087 if (gstring.used > LGSTRING_GLYPH_LEN (lgstring))
de023c40
KH		 2088 return Qnil;
2089 for (i = 0; i < gstring.used; i++)
2090 {
2091 MFLTGlyph *g = gstring.glyphs + i;
2092
2093 g->from = LGLYPH_FROM (LGSTRING_GLYPH (lgstring, g->from));
2094 g->to = LGLYPH_TO (LGSTRING_GLYPH (lgstring, g->to));
2095 }
2096
2097 for (i = 0; i < gstring.used; i++)
2098 {
2099 Lisp_Object lglyph = LGSTRING_GLYPH (lgstring, i);
2100 MFLTGlyph *g = gstring.glyphs + i;
2101
4cec6061
KH		 2102 if (NILP (lglyph))
2103 {
2104 lglyph = Fmake_vector (make_number (LGLYPH_SIZE), Qnil);
2105 LGSTRING_SET_GLYPH (lgstring, i, lglyph);
2106 }
de023c40
KH		 2107 LGLYPH_SET_FROM (lglyph, g->from);
2108 LGLYPH_SET_TO (lglyph, g->to);
2109 LGLYPH_SET_CHAR (lglyph, g->c);
2110 LGLYPH_SET_CODE (lglyph, g->code);
2111 LGLYPH_SET_WIDTH (lglyph, g->xadv >> 6);
2112 LGLYPH_SET_LBEARING (lglyph, g->lbearing >> 6);
2113 LGLYPH_SET_RBEARING (lglyph, g->rbearing >> 6);
2114 LGLYPH_SET_ASCENT (lglyph, g->ascent >> 6);
2115 LGLYPH_SET_DESCENT (lglyph, g->descent >> 6);
2116 if (g->adjusted)
2117 {
2118 Lisp_Object vec;
2119
2120 vec = Fmake_vector (make_number (3), Qnil);
2121 ASET (vec, 0, make_number (g->xoff >> 6));
2122 ASET (vec, 1, make_number (g->yoff >> 6));
2123 ASET (vec, 2, make_number (g->xadv >> 6));
2124 LGLYPH_SET_ADJUSTMENT (lglyph, vec);
2125 }
2126 }
2127 return make_number (i);
2128}
2129
2130Lisp_Object
2131ftfont_shape (lgstring)
2132 Lisp_Object lgstring;
2133{
2134 struct font *font;
2135 struct ftfont_info *ftfont_info;
e302a291 2136 OTF *otf;
de023c40
KH		 2137
2138 CHECK_FONT_GET_OBJECT (LGSTRING_FONT (lgstring), font);
2139 ftfont_info = (struct ftfont_info *) font;
e302a291
KH		 2140 otf = ftfont_get_otf (ftfont_info);
2141 if (! otf)
4cc1c806 2142 return make_number (0);
e302a291 2143 return ftfont_shape_by_flt (lgstring, font, ftfont_info->ft_size->face, otf);
de023c40
KH		 2144}
2145
e3869731
KH		 2146#endif /* HAVE_M17N_FLT */
2147
2b33f1ef
KH		 2148#ifdef HAVE_OTF_GET_VARIATION_GLYPHS
2149
2150static int
2151ftfont_variation_glyphs (font, c, variations)
2152 struct font *font;
2153 int c;
2154 unsigned variations[256];
2155{
2156 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
2157 OTF *otf = ftfont_get_otf (ftfont_info);
2158
2159 if (! otf)
2160 return 0;
2161 return OTF_get_variation_glyphs (otf, c, variations);
2162}
2163
2164#endif /* HAVE_OTF_GET_VARIATION_GLYPHS */
de023c40
KH		 2165#endif /* HAVE_LIBOTF */
2166
0b966021 2167Lisp_Object
7d7ad10e 2168ftfont_font_format (FcPattern *pattern, Lisp_Object filename)
0b966021 2169{
e907d979 2170 FcChar8 *str;
0b966021 2171
e907d979 2172#ifdef FC_FONTFORMAT
7d7ad10e 2173 if (pattern)
719b3d63 2174 {
7d7ad10e
KH		 2175 if (FcPatternGetString (pattern, FC_FONTFORMAT, 0, &str) != FcResultMatch)
2176 return Qnil;
2177 if (strcmp ((char *) str, "TrueType") == 0)
719b3d63 2178 return intern ("truetype");
7d7ad10e 2179 if (strcmp ((char *) str, "Type 1") == 0)
719b3d63 2180 return intern ("type1");
7d7ad10e 2181 if (strcmp ((char *) str, "PCF") == 0)
719b3d63 2182 return intern ("pcf");
7d7ad10e 2183 if (strcmp ((char *) str, "BDF") == 0)
719b3d63
KH		 2184 return intern ("bdf");
2185 }
7d7ad10e
KH		 2186#endif /* FC_FONTFORMAT */
2187 if (STRINGP (filename))
2188 {
2189 int len = SBYTES (filename);
2190
2191 if (len >= 4)
2192 {
2193 str = (FcChar8 *) (SDATA (filename) + len - 4);
2194 if (xstrcasecmp ((char *) str, ".ttf") == 0)
2195 return intern ("truetype");
2196 if (xstrcasecmp ((char *) str, ".pfb") == 0)
2197 return intern ("type1");
2198 if (xstrcasecmp ((char *) str, ".pcf") == 0)
2199 return intern ("pcf");
2200 if (xstrcasecmp ((char *) str, ".bdf") == 0)
2201 return intern ("bdf");
2202 }
2203 }
0b966021
KH		 2204 return intern ("unknown");
2205}
2206
c2f5bfd6
KH		 2207\f
2208void
2209syms_of_ftfont ()
2210{
706b6995
KH		 2211 DEFSYM (Qfreetype, "freetype");
2212 DEFSYM (Qmonospace, "monospace");
2213 DEFSYM (Qsans_serif, "sans-serif");
2214 DEFSYM (Qserif, "serif");
2215 DEFSYM (Qmono, "mono");
2216 DEFSYM (Qsans, "sans");
2217 DEFSYM (Qsans__serif, "sans serif");
99c4d65d
KH		 2218 DEFSYM (Qja, "ja");
2219 DEFSYM (Qko, "ko");
706b6995 2220
c2f5bfd6 2221 staticpro (&freetype_font_cache);
c2801c99 2222 freetype_font_cache = Fcons (Qt, Qnil);
c2f5bfd6 2223
706b6995
KH		 2224 staticpro (&ftfont_generic_family_list);
2225 ftfont_generic_family_list
2226 = Fcons (Fcons (Qmonospace, Qt),
2227 Fcons (Fcons (Qsans_serif, Qt),
2228 Fcons (Fcons (Qsans, Qt), Qnil)));
c2f5bfd6 2229
21988a08
KH		 2230 staticpro (&ft_face_cache);
2231 ft_face_cache = Qnil;
2232
c2f5bfd6
KH		 2233 ftfont_driver.type = Qfreetype;
2234 register_font_driver (&ftfont_driver, NULL);
2235}
885b7d09
MB		 2236
2237/* arch-tag: 7cfa432c-33a6-4988-83d2-a82ed8604aca
2238 (do not change this comment) */
Unnamed repository; edit this file 'description' to name the repository.