1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21
22 #include <config.h>
23 #include <stdio.h>
24 #include <setjmp.h>
25
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"
36 #include "composite.h"
37 #include "fontset.h"
38 #include "font.h"
39 #include "ftfont.h"
40
41
42 Lisp_Object Qfreetype;
43
44
45 static Lisp_Object Qmonospace, Qsans_serif, Qserif, Qmono, Qsans, Qsans__serif;
46
47
48 static int fc_initialized;
49
50
51 static FT_Library ft_library;
52
53
54 static Lisp_Object freetype_font_cache;
55
56
57 static Lisp_Object ft_face_cache;
58
59 60
61
62 struct ftfont_info
63 {
64 struct font font;
65 #ifdef HAVE_LIBOTF
66 67
68 int maybe_otf;
69 OTF *otf;
70 #endif
71 FT_Size ft_size;
72 int index;
73 FT_Matrix matrix;
74 };
75
76 enum ftfont_cache_for
77 {
78 FTFONT_CACHE_FOR_FACE,
79 FTFONT_CACHE_FOR_CHARSET,
80 FTFONT_CACHE_FOR_ENTITY
81 };
82
83 static Lisp_Object ftfont_pattern_entity P_ ((FcPattern *, Lisp_Object));
84
85 static Lisp_Object ftfont_resolve_generic_family P_ ((Lisp_Object,
86 FcPattern *));
87 static Lisp_Object ftfont_lookup_cache P_ ((Lisp_Object,
88 enum ftfont_cache_for));
89
90 static void ftfont_filter_properties P_ ((Lisp_Object font, Lisp_Object alist));
91
92 Lisp_Object ftfont_font_format P_ ((FcPattern *, Lisp_Object));
93
94 #define SYMBOL_FcChar8(SYM) (FcChar8 *) SDATA (SYMBOL_NAME (SYM))
95
96 static struct
97 {
98
99 char *name;
100
101 int uniquifier[6];
102
103 char *lang;
104
105 FcCharSet *fc_charset;
106 } fc_charset_table[] =
107 { { "iso8859-1", { 0x00A0, 0x00A1, 0x00B4, 0x00BC, 0x00D0 } },
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"},
140 { "windows-1251", { 0x0401, 0x0490 }, "ru"},
141 { "koi8-r", { 0x0401, 0x2219 }, "ru"},
142 { "mulelao-1", { 0x0E81 }, "lo"},
143 { "unicode-sip", { 0x20000 }},
144 { NULL }
145 };
146
147 extern Lisp_Object Qc, Qm, Qp, Qd;
148
149 150 151 152 153 154 155 156 157 158 159 160
161
162 static Lisp_Object
163 get_adstyle_property (FcPattern *p)
164 {
165 char *str, *end;
166 Lisp_Object adstyle;
167
168 if (FcPatternGetString (p, FC_STYLE, 0, (FcChar8 **) &str) != FcResultMatch)
169 return Qnil;
170 for (end = str; *end && *end != ' '; end++);
171 if (*end)
172 {
173 char *p = alloca (end - str + 1);
174 memcpy (p, str, end - str);
175 p[end - str] = '\0';
176 end = p + (end - str);
177 str = p;
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;
184 adstyle = font_intern_prop (str, end - str, 1);
185 if (font_style_to_value (FONT_WIDTH_INDEX, adstyle, 0) >= 0)
186 return Qnil;
187 return adstyle;
188 }
189
190 static Lisp_Object
191 ftfont_pattern_entity (p, extra)
192 FcPattern *p;
193 Lisp_Object extra;
194 {
195 Lisp_Object key, cache, entity;
196 char *file, *str;
197 int index;
198 int numeric;
199 double dbl;
200 FcBool b;
201
202 if (FcPatternGetString (p, FC_FILE, 0, (FcChar8 **) &file) != FcResultMatch)
203 return Qnil;
204 if (FcPatternGetInteger (p, FC_INDEX, 0, &index) != FcResultMatch)
205 return Qnil;
206
207 key = Fcons (make_unibyte_string ((char *) file, strlen ((char *) file)),
208 make_number (index));
209 cache = ftfont_lookup_cache (key, FTFONT_CACHE_FOR_ENTITY);
210 entity = XCAR (cache);
211 if (! NILP (entity))
212 {
213 Lisp_Object val = font_make_entity ();
214 int i;
215
216 for (i = 0; i < FONT_OBJLIST_INDEX; i++)
217 ASET (val, i, AREF (entity, i));
218 return val;
219 }
220 entity = font_make_entity ();
221 XSETCAR (cache, entity);
222
223 ASET (entity, FONT_TYPE_INDEX, Qfreetype);
224 ASET (entity, FONT_REGISTRY_INDEX, Qiso10646_1);
225
226 if (FcPatternGetString (p, FC_FOUNDRY, 0, (FcChar8 **) &str) == FcResultMatch)
227 ASET (entity, FONT_FOUNDRY_INDEX, font_intern_prop (str, strlen (str), 1));
228 if (FcPatternGetString (p, FC_FAMILY, 0, (FcChar8 **) &str) == FcResultMatch)
229 ASET (entity, FONT_FAMILY_INDEX, font_intern_prop (str, strlen (str), 1));
230 if (FcPatternGetInteger (p, FC_WEIGHT, 0, &numeric) == FcResultMatch)
231 {
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));
235 }
236 if (FcPatternGetInteger (p, FC_SLANT, 0, &numeric) == FcResultMatch)
237 {
238 numeric += 100;
239 FONT_SET_STYLE (entity, FONT_SLANT_INDEX, make_number (numeric));
240 }
241 if (FcPatternGetInteger (p, FC_WIDTH, 0, &numeric) == FcResultMatch)
242 {
243 FONT_SET_STYLE (entity, FONT_WIDTH_INDEX, make_number (numeric));
244 }
245 if (FcPatternGetDouble (p, FC_PIXEL_SIZE, 0, &dbl) == FcResultMatch)
246 {
247 ASET (entity, FONT_SIZE_INDEX, make_number (dbl));
248 }
249 else
250 ASET (entity, FONT_SIZE_INDEX, make_number (0));
251 if (FcPatternGetInteger (p, FC_SPACING, 0, &numeric) == FcResultMatch)
252 ASET (entity, FONT_SPACING_INDEX, make_number (numeric));
253 if (FcPatternGetDouble (p, FC_DPI, 0, &dbl) == FcResultMatch)
254 {
255 int dpi = dbl;
256 ASET (entity, FONT_DPI_INDEX, make_number (dpi));
257 }
258 if (FcPatternGetBool (p, FC_SCALABLE, 0, &b) == FcResultMatch
259 && b == FcTrue)
260 {
261 ASET (entity, FONT_SIZE_INDEX, make_number (0));
262 ASET (entity, FONT_AVGWIDTH_INDEX, make_number (0));
263 }
264 else
265 {
266 267
268 FT_Face ft_face;
269
270 ASET (entity, FONT_ADSTYLE_INDEX, get_adstyle_property (p));
271 if ((ft_library || FT_Init_FreeType (&ft_library) == 0)
272 && FT_New_Face (ft_library, file, index, &ft_face) == 0)
273 {
274 BDF_PropertyRec rec;
275
276 if (FT_Get_BDF_Property (ft_face, "AVERAGE_WIDTH", &rec) == 0
277 && rec.type == BDF_PROPERTY_TYPE_INTEGER)
278 ASET (entity, FONT_AVGWIDTH_INDEX, make_number (rec.u.integer));
279 FT_Done_Face (ft_face);
280 }
281 }
282
283 ASET (entity, FONT_EXTRA_INDEX, Fcopy_sequence (extra));
284 font_put_extra (entity, QCfont_entity, key);
285 return entity;
286 }
287
288
289 static Lisp_Object ftfont_generic_family_list;
290
291 static Lisp_Object
292 ftfont_resolve_generic_family (family, pattern)
293 Lisp_Object family;
294 FcPattern *pattern;
295 {
296 Lisp_Object slot;
297 FcPattern *match;
298 FcResult result;
299 FcLangSet *langset;
300
301 family = Fintern (Fdowncase (SYMBOL_NAME (family)), Qnil);
302 if (EQ (family, Qmono))
303 family = Qmonospace;
304 else if (EQ (family, Qsans) || EQ (family, Qsans__serif))
305 family = Qsans_serif;
306 slot = assq_no_quit (family, ftfont_generic_family_list);
307 if (! CONSP (slot))
308 return Qnil;
309 if (! EQ (XCDR (slot), Qt))
310 return XCDR (slot);
311 pattern = FcPatternDuplicate (pattern);
312 if (! pattern)
313 goto err;
314 FcPatternDel (pattern, FC_FOUNDRY);
315 FcPatternDel (pattern, FC_FAMILY);
316 FcPatternAddString (pattern, FC_FAMILY, SYMBOL_FcChar8 (family));
317 if (FcPatternGetLangSet (pattern, FC_LANG, 0, &langset) != FcResultMatch)
318 {
319
320 langset = FcLangSetCreate ();
321 FcLangSetAdd (langset, "en");
322 FcPatternAddLangSet (pattern, FC_LANG, langset);
323 FcLangSetDestroy (langset);
324 }
325 FcConfigSubstitute (NULL, pattern, FcMatchPattern);
326 FcDefaultSubstitute (pattern);
327 match = FcFontMatch (NULL, pattern, &result);
328 if (match)
329 {
330 FcChar8 *fam;
331
332 if (FcPatternGetString (match, FC_FAMILY, 0, &fam) == FcResultMatch)
333 family = intern ((char *) fam);
334 }
335 else
336 family = Qnil;
337 XSETCDR (slot, family);
338 if (match) FcPatternDestroy (match);
339 err:
340 if (pattern) FcPatternDestroy (pattern);
341 return family;
342 }
343
344 struct ftfont_cache_data
345 {
346 FT_Face ft_face;
347 FcCharSet *fc_charset;
348 };
349
350 static Lisp_Object
351 ftfont_lookup_cache (key, cache_for)
352 Lisp_Object key;
353 enum ftfont_cache_for cache_for;
354 {
355 Lisp_Object cache, val, entity;
356 struct ftfont_cache_data *cache_data;
357
358 if (FONT_ENTITY_P (key))
359 {
360 entity = key;
361 val = assq_no_quit (QCfont_entity, AREF (entity, FONT_EXTRA_INDEX));
362 xassert (CONSP (val));
363 key = XCDR (val);
364 }
365 else
366 entity = Qnil;
367
368 if (NILP (ft_face_cache))
369 cache = Qnil;
370 else
371 cache = Fgethash (key, ft_face_cache, Qnil);
372 if (NILP (cache))
373 {
374 if (NILP (ft_face_cache))
375 {
376 Lisp_Object args[2];
377
378 args[0] = QCtest;
379 args[1] = Qequal;
380 ft_face_cache = Fmake_hash_table (2, args);
381 }
382 cache_data = xmalloc (sizeof (struct ftfont_cache_data));
383 cache_data->ft_face = NULL;
384 cache_data->fc_charset = NULL;
385 val = make_save_value (NULL, 0);
386 XSAVE_VALUE (val)->integer = 0;
387 XSAVE_VALUE (val)->pointer = cache_data;
388 cache = Fcons (Qnil, val);
389 Fputhash (key, cache, ft_face_cache);
390 }
391 else
392 {
393 val = XCDR (cache);
394 cache_data = XSAVE_VALUE (val)->pointer;
395 }
396
397 if (cache_for == FTFONT_CACHE_FOR_ENTITY)
398 return cache;
399
400 if (cache_for == FTFONT_CACHE_FOR_FACE
401 ? ! cache_data->ft_face : ! cache_data->fc_charset)
402 {
403 char *filename = (char *) SDATA (XCAR (key));
404 int index = XINT (XCDR (key));
405
406 if (cache_for == FTFONT_CACHE_FOR_FACE)
407 {
408 if (! ft_library
409 && FT_Init_FreeType (&ft_library) != 0)
410 return Qnil;
411 if (FT_New_Face (ft_library, filename, index, &cache_data->ft_face)
412 != 0)
413 return Qnil;
414 }
415 else
416 {
417 FcPattern *pat = NULL;
418 FcFontSet *fontset = NULL;
419 FcObjectSet *objset = NULL;
420 FcCharSet *charset = NULL;
421
422 pat = FcPatternBuild (0, FC_FILE, FcTypeString, (FcChar8 *) filename,
423 FC_INDEX, FcTypeInteger, index, NULL);
424 if (! pat)
425 goto finish;
426 objset = FcObjectSetBuild (FC_CHARSET, FC_STYLE, NULL);
427 if (! objset)
428 goto finish;
429 fontset = FcFontList (NULL, pat, objset);
430 if (! fontset)
431 goto finish;
432 if (fontset && fontset->nfont > 0
433 && (FcPatternGetCharSet (fontset->fonts[0], FC_CHARSET, 0,
434 &charset)
435 == FcResultMatch))
436 cache_data->fc_charset = FcCharSetCopy (charset);
437 else
438 cache_data->fc_charset = FcCharSetCreate ();
439
440 finish:
441 if (fontset)
442 FcFontSetDestroy (fontset);
443 if (objset)
444 FcObjectSetDestroy (objset);
445 if (pat)
446 FcPatternDestroy (pat);
447 }
448 }
449 return cache;
450 }
451
452 FcCharSet *
453 ftfont_get_fc_charset (entity)
454 Lisp_Object entity;
455 {
456 Lisp_Object val, cache;
457 struct ftfont_cache_data *cache_data;
458
459 cache = ftfont_lookup_cache (entity, FTFONT_CACHE_FOR_CHARSET);
460 val = XCDR (cache);
461 cache_data = XSAVE_VALUE (val)->pointer;
462 return cache_data->fc_charset;
463 }
464
465 #ifdef HAVE_LIBOTF
466 static OTF *
467 ftfont_get_otf (ftfont_info)
468 struct ftfont_info *ftfont_info;
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
488
489 static Lisp_Object ftfont_get_cache P_ ((FRAME_PTR));
490 static Lisp_Object ftfont_list P_ ((Lisp_Object, Lisp_Object));
491 static Lisp_Object ftfont_match P_ ((Lisp_Object, Lisp_Object));
492 static Lisp_Object ftfont_list_family P_ ((Lisp_Object));
493 static Lisp_Object ftfont_open P_ ((FRAME_PTR, Lisp_Object, int));
494 static void ftfont_close P_ ((FRAME_PTR, struct font *));
495 static int ftfont_has_char P_ ((Lisp_Object, int));
496 static unsigned ftfont_encode_char P_ ((struct font *, int));
497 static int ftfont_text_extents P_ ((struct font *, unsigned *, int,
498 struct font_metrics *));
499 static int ftfont_get_bitmap P_ ((struct font *, unsigned,
500 struct font_bitmap *, int));
501 static int ftfont_anchor_point P_ ((struct font *, unsigned, int,
502 int *, int *));
503 static Lisp_Object ftfont_otf_capability P_ ((struct font *));
504 static Lisp_Object ftfont_shape P_ ((Lisp_Object));
505
506 #ifdef HAVE_OTF_GET_VARIATION_GLYPHS
507 static int ftfont_variation_glyphs P_ ((struct font *, int c,
508 unsigned variations[256]));
509 #endif
510
511 struct font_driver ftfont_driver =
512 {
513 0,
514 0,
515 ftfont_get_cache,
516 ftfont_list,
517 ftfont_match,
518 ftfont_list_family,
519 NULL,
520 ftfont_open,
521 ftfont_close,
522
523 NULL,
524 NULL,
525 ftfont_has_char,
526 ftfont_encode_char,
527 ftfont_text_extents,
528
529 NULL,
530 ftfont_get_bitmap,
531 NULL,
532 NULL,
533 NULL,
534 ftfont_anchor_point,
535 #ifdef HAVE_LIBOTF
536 ftfont_otf_capability,
537 #else
538 NULL,
539 #endif
540 NULL,
541 NULL,
542 NULL,
543 #if defined (HAVE_M17N_FLT) && defined (HAVE_LIBOTF)
544 ftfont_shape,
545 #else
546 NULL,
547 #endif
548 NULL,
549
550 #ifdef HAVE_OTF_GET_VARIATION_GLYPHS
551 ftfont_variation_glyphs,
552 #else
553 NULL,
554 #endif
555
556 ftfont_filter_properties,
557 };
558
559 extern Lisp_Object QCname;
560
561 static Lisp_Object
562 ftfont_get_cache (f)
563 FRAME_PTR f;
564 {
565 return freetype_font_cache;
566 }
567
568 static int
569 ftfont_get_charset (registry)
570 Lisp_Object registry;
571 {
572 char *str = (char *) SDATA (SYMBOL_NAME (registry));
573 char *re = alloca (SBYTES (SYMBOL_NAME (registry)) * 2 + 1);
574 Lisp_Object regexp;
575 int i, j;
576
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);
589 for (i = 0; fc_charset_table[i].name; i++)
590 if (fast_c_string_match_ignore_case (regexp, fc_charset_table[i].name) >= 0)
591 break;
592 if (! fc_charset_table[i].name)
593 return -1;
594 if (! fc_charset_table[i].fc_charset)
595 {
596 FcCharSet *charset = FcCharSetCreate ();
597 int *uniquifier = fc_charset_table[i].uniquifier;
598
599 if (! charset)
600 return -1;
601 for (j = 0; uniquifier[j]; j++)
602 if (! FcCharSetAddChar (charset, uniquifier[j]))
603 {
604 FcCharSetDestroy (charset);
605 return -1;
606 }
607 fc_charset_table[i].fc_charset = charset;
608 }
609 return i;
610 }
611
612 struct OpenTypeSpec
613 {
614 Lisp_Object script;
615 unsigned int script_tag, langsys_tag;
616 int nfeatures[2];
617 unsigned int *features[2];
618 };
619
620 #define OTF_SYM_TAG(SYM, TAG) \
621 do { \
622 unsigned char *p = SDATA (SYMBOL_NAME (SYM)); \
623 TAG = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; \
624 } while (0)
625
626 #define OTF_TAG_STR(TAG, P) \
627 do { \
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); \
632 (P)[4] = '\0'; \
633 } while (0)
634
635 #define OTF_TAG_SYM(SYM, TAG) \
636 do { \
637 char str[5]; \
638 \
639 OTF_TAG_STR (TAG, str); \
640 (SYM) = font_intern_prop (str, 4, 1); \
641 } while (0)
642
643
644 static struct OpenTypeSpec *
645 ftfont_get_open_type_spec (Lisp_Object otf_spec)
646 {
647 struct OpenTypeSpec *spec = malloc (sizeof (struct OpenTypeSpec));
648 Lisp_Object val;
649 int i, j, negative;
650
651 if (! spec)
652 return NULL;
653 spec->script = XCAR (otf_spec);
654 if (! NILP (spec->script))
655 {
656 OTF_SYM_TAG (spec->script, spec->script_tag);
657 val = assq_no_quit (spec->script, Votf_script_alist);
658 if (CONSP (val) && SYMBOLP (XCDR (val)))
659 spec->script = XCDR (val);
660 else
661 spec->script = Qnil;
662 }
663 else
664 spec->script_tag = 0x44464C54;
665 otf_spec = XCDR (otf_spec);
666 spec->langsys_tag = 0;
667 if (! NILP (otf_spec))
668 {
669 val = XCAR (otf_spec);
670 if (! NILP (val))
671 OTF_SYM_TAG (val, spec->langsys_tag);
672 otf_spec = XCDR (otf_spec);
673 }
674 spec->nfeatures[0] = spec->nfeatures[1] = 0;
675 for (i = 0; i < 2 && ! NILP (otf_spec); i++, otf_spec = XCDR (otf_spec))
676 {
677 Lisp_Object len;
678
679 val = XCAR (otf_spec);
680 if (NILP (val))
681 continue;
682 len = Flength (val);
683 spec->features[i] = malloc (sizeof (int) * XINT (len));
684 if (! spec->features[i])
685 {
686 if (i > 0 && spec->features[0])
687 free (spec->features[0]);
688 free (spec);
689 return NULL;
690 }
691 for (j = 0, negative = 0; CONSP (val); val = XCDR (val))
692 {
693 if (NILP (XCAR (val)))
694 negative = 1;
695 else
696 {
697 unsigned int tag;
698
699 OTF_SYM_TAG (XCAR (val), tag);
700 spec->features[i][j++] = negative ? tag & 0x80000000 : tag;
701 }
702 }
703 spec->nfeatures[i] = j;
704 }
705 return spec;
706 }
707
708 static FcPattern *ftfont_spec_pattern P_ ((Lisp_Object, char *,
709 struct OpenTypeSpec **,
710 char **langname));
711
712 static FcPattern *
713 ftfont_spec_pattern (spec, otlayout, otspec, langname)
714 Lisp_Object spec;
715 char *otlayout;
716 struct OpenTypeSpec **otspec;
717 char **langname;
718 {
719 Lisp_Object tmp, extra;
720 FcPattern *pattern = NULL;
721 FcCharSet *charset = NULL;
722 FcLangSet *langset = NULL;
723 int n;
724 int dpi = -1;
725 int scalable = -1;
726 Lisp_Object script = Qnil;
727 Lisp_Object registry;
728 int fc_charset_idx;
729
730 if ((n = FONT_SLANT_NUMERIC (spec)) >= 0
731 && n < 100)
732
733 return NULL;
734
735 if (INTEGERP (AREF (spec, FONT_DPI_INDEX)))
736 dpi = XINT (AREF (spec, FONT_DPI_INDEX));
737 if (INTEGERP (AREF (spec, FONT_AVGWIDTH_INDEX))
738 && XINT (AREF (spec, FONT_AVGWIDTH_INDEX)) == 0)
739 scalable = 1;
740
741 registry = AREF (spec, FONT_REGISTRY_INDEX);
742 if (NILP (registry)
743 || EQ (registry, Qascii_0)
744 || EQ (registry, Qiso10646_1)
745 || EQ (registry, Qunicode_bmp))
746 fc_charset_idx = -1;
747 else
748 {
749 FcChar8 *lang;
750
751 fc_charset_idx = ftfont_get_charset (registry);
752 if (fc_charset_idx < 0)
753 return NULL;
754 charset = fc_charset_table[fc_charset_idx].fc_charset;
755 *langname = fc_charset_table[fc_charset_idx].lang;
756 lang = (FcChar8 *) *langname;
757 if (lang)
758 {
759 langset = FcLangSetCreate ();
760 if (! langset)
761 goto err;
762 FcLangSetAdd (langset, lang);
763 }
764 }
765
766 otlayout[0] = '\0';
767 for (extra = AREF (spec, FONT_EXTRA_INDEX);
768 CONSP (extra); extra = XCDR (extra))
769 {
770 Lisp_Object key, val;
771
772 key = XCAR (XCAR (extra)), val = XCDR (XCAR (extra));
773 if (EQ (key, QCdpi))
774 dpi = XINT (val);
775 else if (EQ (key, QClang))
776 {
777 if (! langset)
778 langset = FcLangSetCreate ();
779 if (! langset)
780 goto err;
781 if (SYMBOLP (val))
782 {
783 if (! FcLangSetAdd (langset, SYMBOL_FcChar8 (val)))
784 goto err;
785 }
786 else
787 for (; CONSP (val); val = XCDR (val))
788 if (SYMBOLP (XCAR (val))
789 && ! FcLangSetAdd (langset, SYMBOL_FcChar8 (XCAR (val))))
790 goto err;
791 }
792 else if (EQ (key, QCotf))
793 {
794 *otspec = ftfont_get_open_type_spec (val);
795 if (! *otspec)
796 return NULL;
797 strcat (otlayout, "otlayout:");
798 OTF_TAG_STR ((*otspec)->script_tag, otlayout + 9);
799 script = (*otspec)->script;
800 }
801 else if (EQ (key, QCscript))
802 script = val;
803 else if (EQ (key, QCscalable))
804 scalable = ! NILP (val);
805 }
806
807 if (! NILP (script) && ! charset)
808 {
809 Lisp_Object chars = assq_no_quit (script, Vscript_representative_chars);
810
811 if (CONSP (chars) && CONSP (CDR (chars)))
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;
820 }
821 }
822
823 pattern = FcPatternCreate ();
824 if (! pattern)
825 goto err;
826 tmp = AREF (spec, FONT_FOUNDRY_INDEX);
827 if (! NILP (tmp)
828 && ! FcPatternAddString (pattern, FC_FOUNDRY, SYMBOL_FcChar8 (tmp)))
829 goto err;
830 tmp = AREF (spec, FONT_FAMILY_INDEX);
831 if (! NILP (tmp)
832 && ! FcPatternAddString (pattern, FC_FAMILY, SYMBOL_FcChar8 (tmp)))
833 goto err;
834 if (charset
835 && ! FcPatternAddCharSet (pattern, FC_CHARSET, charset))
836 goto err;
837 if (langset
838 && ! FcPatternAddLangSet (pattern, FC_LANG, langset))
839 goto err;
840 if (dpi >= 0
841 && ! FcPatternAddDouble (pattern, FC_DPI, dpi))
842 goto err;
843 if (scalable >= 0
844 && ! FcPatternAddBool (pattern, FC_SCALABLE, scalable ? FcTrue : FcFalse))
845 goto err;
846
847 goto finish;
848
849 err:
850 851
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:
868 if (langset) FcLangSetDestroy (langset);
869 if (charset && fc_charset_idx < 0) FcCharSetDestroy (charset);
870 return pattern;
871 }
872
873 static Lisp_Object
874 ftfont_list (frame, spec)
875 Lisp_Object frame, spec;
876 {
877 Lisp_Object val = Qnil, family, adstyle;
878 int i;
879 FcPattern *pattern;
880 FcFontSet *fontset = NULL;
881 FcObjectSet *objset = NULL;
882 FcCharSet *charset;
883 Lisp_Object chars = Qnil;
884 FcResult result;
885 char otlayout[15];
886 struct OpenTypeSpec *otspec = NULL;
887 int spacing = -1;
888 char *langname = NULL;
889
890 if (! fc_initialized)
891 {
892 FcInit ();
893 fc_initialized = 1;
894 }
895
896 pattern = ftfont_spec_pattern (spec, otlayout, &otspec, &langname);
897 if (! pattern)
898 return Qnil;
899 if (FcPatternGetCharSet (pattern, FC_CHARSET, 0, &charset) != FcResultMatch)
900 {
901 val = assq_no_quit (QCscript, AREF (spec, FONT_EXTRA_INDEX));
902 if (! NILP (val))
903 {
904 val = assq_no_quit (XCDR (val), Vscript_representative_chars);
905 if (CONSP (val) && VECTORP (XCDR (val)))
906 chars = XCDR (val);
907 }
908 val = Qnil;
909 }
910 if (INTEGERP (AREF (spec, FONT_SPACING_INDEX)))
911 spacing = XINT (AREF (spec, FONT_SPACING_INDEX));
912 family = AREF (spec, FONT_FAMILY_INDEX);
913 if (! NILP (family))
914 {
915 Lisp_Object resolved;
916
917 resolved = ftfont_resolve_generic_family (family, pattern);
918 if (! NILP (resolved))
919 {
920 FcPatternDel (pattern, FC_FAMILY);
921 if (! FcPatternAddString (pattern, FC_FAMILY,
922 SYMBOL_FcChar8 (resolved)))
923 goto err;
924 }
925 }
926 adstyle = AREF (spec, FONT_ADSTYLE_INDEX);
927 if (! NILP (adstyle) && SBYTES (SYMBOL_NAME (adstyle)) == 0)
928 adstyle = Qnil;
929 objset = FcObjectSetBuild (FC_FOUNDRY, FC_FAMILY, FC_WEIGHT, FC_SLANT,
930 FC_WIDTH, FC_PIXEL_SIZE, FC_SPACING, FC_SCALABLE,
931 FC_STYLE, FC_FILE, FC_INDEX,
932 #ifdef FC_CAPABILITY
933 FC_CAPABILITY,
934 #endif
935 #ifdef FC_FONTFORMAT
936 FC_FONTFORMAT,
937 #endif
938 NULL);
939 if (! objset)
940 goto err;
941 if (! NILP (chars))
942 FcObjectSetAdd (objset, FC_CHARSET);
943
944 fontset = FcFontList (NULL, pattern, objset);
945 if (! fontset || fontset->nfont == 0)
946 goto finish;
947 #if 0
948
949 if (fontset->nfont == 0 && ! NILP (family))
950 {
951 952 953
954 FcPattern *pat = FcPatternBuild (0, FC_FAMILY, FcTypeString,
955 SYMBOL_FcChar8 (family), NULL);
956 FcChar8 *fam;
957
958 if (FcConfigSubstitute (NULL, pat, FcMatchPattern) == FcTrue)
959 {
960 for (i = 0;
961 FcPatternGetString (pat, FC_FAMILY, i, &fam) == FcResultMatch;
962 i++)
963 {
964 FcPatternDel (pattern, FC_FAMILY);
965 FcPatternAddString (pattern, FC_FAMILY, fam);
966 FcFontSetDestroy (fontset);
967 fontset = FcFontList (NULL, pattern, objset);
968 if (fontset && fontset->nfont > 0)
969 break;
970 }
971 }
972 }
973 #endif
974 for (i = 0; i < fontset->nfont; i++)
975 {
976 Lisp_Object entity;
977
978 if (spacing >= 0)
979 {
980 int this;
981
982 if ((FcPatternGetInteger (fontset->fonts[i], FC_SPACING, 0, &this)
983 == FcResultMatch)
984 && spacing != this)
985 continue;
986 }
987
988 #ifdef FC_CAPABILITY
989 if (otlayout[0])
990 {
991 FcChar8 *this;
992
993 if (FcPatternGetString (fontset->fonts[i], FC_CAPABILITY, 0, &this)
994 != FcResultMatch
995 || ! strstr ((char *) this, otlayout))
996 continue;
997 }
998 #endif
999 #ifdef HAVE_LIBOTF
1000 if (otspec)
1001 {
1002 FcChar8 *file;
1003 OTF *otf;
1004
1005 if (FcPatternGetString (fontset->fonts[i], FC_FILE, 0, &file)
1006 != FcResultMatch)
1007 continue;
1008 otf = OTF_open ((char *) file);
1009 if (! otf)
1010 continue;
1011 if (OTF_check_features (otf, 1,
1012 otspec->script_tag, otspec->langsys_tag,
1013 otspec->features[0],
1014 otspec->nfeatures[0]) != 1
1015 || OTF_check_features (otf, 0,
1016 otspec->script_tag, otspec->langsys_tag,
1017 otspec->features[1],
1018 otspec->nfeatures[1]) != 1)
1019 continue;
1020 }
1021 #endif
1022 if (VECTORP (chars))
1023 {
1024 int j;
1025
1026 if (FcPatternGetCharSet (fontset->fonts[i], FC_CHARSET, 0, &charset)
1027 != FcResultMatch)
1028 continue;
1029 for (j = 0; j < ASIZE (chars); j++)
1030 if (NATNUMP (AREF (chars, j))
1031 && FcCharSetHasChar (charset, XFASTINT (AREF (chars, j))))
1032 break;
1033 if (j == ASIZE (chars))
1034 continue;
1035 }
1036 if (! NILP (adstyle) || langname)
1037 {
1038 Lisp_Object this_adstyle = get_adstyle_property (fontset->fonts[i]);
1039
1040 if (! NILP (adstyle)
1041 && (NILP (this_adstyle)
1042 || xstrcasecmp (SDATA (SYMBOL_NAME (adstyle)),
1043 SDATA (SYMBOL_NAME (this_adstyle))) != 0))
1044 continue;
1045 if (langname
1046 && ! NILP (this_adstyle)
1047 && xstrcasecmp (langname, SDATA (SYMBOL_NAME (this_adstyle))))
1048 continue;
1049 }
1050 entity = ftfont_pattern_entity (fontset->fonts[i],
1051 AREF (spec, FONT_EXTRA_INDEX));
1052 if (! NILP (entity))
1053 val = Fcons (entity, val);
1054 }
1055 val = Fnreverse (val);
1056 goto finish;
1057
1058 err:
1059 1060
1061 val = Qnil;
1062
1063 finish:
1064 FONT_ADD_LOG ("ftfont-list", spec, val);
1065 if (objset) FcObjectSetDestroy (objset);
1066 if (fontset) FcFontSetDestroy (fontset);
1067 if (pattern) FcPatternDestroy (pattern);
1068 return val;
1069 }
1070
1071 static Lisp_Object
1072 ftfont_match (frame, spec)
1073 Lisp_Object frame, spec;
1074 {
1075 Lisp_Object entity = Qnil;
1076 FcPattern *pattern, *match = NULL;
1077 FcResult result;
1078 char otlayout[15];
1079 struct OpenTypeSpec *otspec = NULL;
1080 char *langname = NULL;
1081
1082 if (! fc_initialized)
1083 {
1084 FcInit ();
1085 fc_initialized = 1;
1086 }
1087
1088 pattern = ftfont_spec_pattern (spec, otlayout, &otspec, &langname);
1089 if (! pattern)
1090 return Qnil;
1091
1092 if (INTEGERP (AREF (spec, FONT_SIZE_INDEX)))
1093 {
1094 FcValue value;
1095
1096 value.type = FcTypeDouble;
1097 value.u.d = XINT (AREF (spec, FONT_SIZE_INDEX));
1098 FcPatternAdd (pattern, FC_PIXEL_SIZE, value, FcFalse);
1099 }
1100 if (FcConfigSubstitute (NULL, pattern, FcMatchPattern) == FcTrue)
1101 {
1102 FcDefaultSubstitute (pattern);
1103 match = FcFontMatch (NULL, pattern, &result);
1104 if (match)
1105 {
1106 entity = ftfont_pattern_entity (match, AREF (spec, FONT_EXTRA_INDEX));
1107 FcPatternDestroy (match);
1108 if (! NILP (AREF (spec, FONT_FAMILY_INDEX))
1109 && NILP (assq_no_quit (AREF (spec, FONT_FAMILY_INDEX),
1110 ftfont_generic_family_list))
1111 && NILP (Fstring_equal (AREF (spec, FONT_FAMILY_INDEX),
1112 AREF (entity, FONT_FAMILY_INDEX))))
1113 entity = Qnil;
1114 }
1115 }
1116 FcPatternDestroy (pattern);
1117
1118 FONT_ADD_LOG ("ftfont-match", spec, entity);
1119 return entity;
1120 }
1121
1122 static Lisp_Object
1123 ftfont_list_family (frame)
1124 Lisp_Object frame;
1125 {
1126 Lisp_Object list = Qnil;
1127 FcPattern *pattern = NULL;
1128 FcFontSet *fontset = NULL;
1129 FcObjectSet *objset = NULL;
1130 int i;
1131
1132 if (! fc_initialized)
1133 {
1134 FcInit ();
1135 fc_initialized = 1;
1136 }
1137
1138 pattern = FcPatternCreate ();
1139 if (! pattern)
1140 goto finish;
1141 objset = FcObjectSetBuild (FC_FAMILY, NULL);
1142 if (! objset)
1143 goto finish;
1144 fontset = FcFontList (NULL, pattern, objset);
1145 if (! fontset)
1146 goto finish;
1147
1148 for (i = 0; i < fontset->nfont; i++)
1149 {
1150 FcPattern *pat = fontset->fonts[i];
1151 FcChar8 *str;
1152
1153 if (FcPatternGetString (pat, FC_FAMILY, 0, &str) == FcResultMatch)
1154 list = Fcons (intern ((char *) str), list);
1155 }
1156
1157 finish:
1158 if (objset) FcObjectSetDestroy (objset);
1159 if (fontset) FcFontSetDestroy (fontset);
1160 if (pattern) FcPatternDestroy (pattern);
1161
1162 return list;
1163 }
1164
1165
1166 static Lisp_Object
1167 ftfont_open (f, entity, pixel_size)
1168 FRAME_PTR f;
1169 Lisp_Object entity;
1170 int pixel_size;
1171 {
1172 struct ftfont_info *ftfont_info;
1173 struct font *font;
1174 struct ftfont_cache_data *cache_data;
1175 FT_Face ft_face;
1176 FT_Size ft_size;
1177 FT_UInt size;
1178 Lisp_Object val, filename, index, cache, font_object;
1179 int scalable;
1180 int spacing;
1181 char name[256];
1182 int i, len;
1183 int upEM;
1184
1185 val = assq_no_quit (QCfont_entity, AREF (entity, FONT_EXTRA_INDEX));
1186 if (! CONSP (val))
1187 return Qnil;
1188 val = XCDR (val);
1189 cache = ftfont_lookup_cache (entity, FTFONT_CACHE_FOR_FACE);
1190 if (NILP (cache))
1191 return Qnil;
1192 filename = XCAR (val);
1193 index = XCDR (val);
1194 val = XCDR (cache);
1195 cache_data = XSAVE_VALUE (XCDR (cache))->pointer;
1196 ft_face = cache_data->ft_face;
1197 if (XSAVE_VALUE (val)->integer > 0)
1198 {
1199
1200 if (FT_New_Size (ft_face, &ft_size) != 0)
1201 return Qnil;
1202 if (FT_Activate_Size (ft_size) != 0)
1203 {
1204 FT_Done_Size (ft_size);
1205 return Qnil;
1206 }
1207 }
1208 XSAVE_VALUE (val)->integer++;
1209 size = XINT (AREF (entity, FONT_SIZE_INDEX));
1210 if (size == 0)
1211 size = pixel_size;
1212 if (FT_Set_Pixel_Sizes (ft_face, size, size) != 0)
1213 {
1214 if (XSAVE_VALUE (val)->integer == 0)
1215 FT_Done_Face (ft_face);
1216 return Qnil;
1217 }
1218
1219 font_object = font_make_object (VECSIZE (struct ftfont_info), entity, size);
1220 ASET (font_object, FONT_TYPE_INDEX, Qfreetype);
1221 len = font_unparse_xlfd (entity, size, name, 256);
1222 if (len > 0)
1223 ASET (font_object, FONT_NAME_INDEX, make_string (name, len));
1224 len = font_unparse_fcname (entity, size, name, 256);
1225 if (len > 0)
1226 ASET (font_object, FONT_FULLNAME_INDEX, make_string (name, len));
1227 else
1228 ASET (font_object, FONT_FULLNAME_INDEX,
1229 AREF (font_object, FONT_NAME_INDEX));
1230 ASET (font_object, FONT_FILE_INDEX, filename);
1231 ASET (font_object, FONT_FORMAT_INDEX, ftfont_font_format (NULL, filename));
1232 font = XFONT_OBJECT (font_object);
1233 ftfont_info = (struct ftfont_info *) font;
1234 ftfont_info->ft_size = ft_face->size;
1235 ftfont_info->index = XINT (index);
1236 #ifdef HAVE_LIBOTF
1237 ftfont_info->maybe_otf = ft_face->face_flags & FT_FACE_FLAG_SFNT;
1238 ftfont_info->otf = NULL;
1239 #endif
1240
1241 ftfont_info->matrix.xx = 0;
1242 font->pixel_size = size;
1243 font->driver = &ftfont_driver;
1244 font->encoding_charset = font->repertory_charset = -1;
1245
1246 upEM = ft_face->units_per_EM;
1247 scalable = (INTEGERP (AREF (entity, FONT_AVGWIDTH_INDEX))
1248 && XINT (AREF (entity, FONT_AVGWIDTH_INDEX)) == 0);
1249 if (scalable)
1250 {
1251 font->ascent = ft_face->ascender * size / upEM;
1252 font->descent = - ft_face->descender * size / upEM;
1253 font->height = ft_face->height * size / upEM;
1254 }
1255 else
1256 {
1257 font->ascent = ft_face->size->metrics.ascender >> 6;
1258 font->descent = - ft_face->size->metrics.descender >> 6;
1259 font->height = ft_face->size->metrics.height >> 6;
1260 }
1261 if (INTEGERP (AREF (entity, FONT_SPACING_INDEX)))
1262 spacing = XINT (AREF (entity, FONT_SPACING_INDEX));
1263 else
1264 spacing = FC_PROPORTIONAL;
1265 if (spacing != FC_PROPORTIONAL)
1266 font->min_width = font->average_width = font->space_width
1267 = (scalable ? ft_face->max_advance_width * size / upEM
1268 : ft_face->size->metrics.max_advance >> 6);
1269 else
1270 {
1271 int n;
1272
1273 font->min_width = font->average_width = font->space_width = 0;
1274 for (i = 32, n = 0; i < 127; i++)
1275 if (FT_Load_Char (ft_face, i, FT_LOAD_DEFAULT) == 0)
1276 {
1277 int this_width = ft_face->glyph->metrics.horiAdvance >> 6;
1278
1279 if (this_width > 0
1280 && (! font->min_width || font->min_width > this_width))
1281 font->min_width = this_width;
1282 if (i == 32)
1283 font->space_width = this_width;
1284 font->average_width += this_width;
1285 n++;
1286 }
1287 if (n > 0)
1288 font->average_width /= n;
1289 }
1290
1291 font->baseline_offset = 0;
1292 font->relative_compose = 0;
1293 font->default_ascent = 0;
1294 font->vertical_centering = 0;
1295 if (scalable)
1296 {
1297 font->underline_position = -ft_face->underline_position * size / upEM;
1298 font->underline_thickness = ft_face->underline_thickness * size / upEM;
1299 }
1300 else
1301 {
1302 font->underline_position = -1;
1303 font->underline_thickness = 0;
1304 }
1305
1306 return font_object;
1307 }
1308
1309 static void
1310 ftfont_close (f, font)
1311 FRAME_PTR f;
1312 struct font *font;
1313 {
1314 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
1315 Lisp_Object val, cache;
1316
1317 val = Fcons (font->props[FONT_FILE_INDEX], make_number (ftfont_info->index));
1318 cache = ftfont_lookup_cache (val, FTFONT_CACHE_FOR_FACE);
1319 xassert (CONSP (cache));
1320 val = XCDR (cache);
1321 (XSAVE_VALUE (val)->integer)--;
1322 if (XSAVE_VALUE (val)->integer == 0)
1323 {
1324 struct ftfont_cache_data *cache_data = XSAVE_VALUE (val)->pointer;
1325
1326 FT_Done_Face (cache_data->ft_face);
1327 #ifdef HAVE_LIBOTF
1328 if (ftfont_info->otf)
1329 OTF_close (ftfont_info->otf);
1330 #endif
1331 cache_data->ft_face = NULL;
1332 }
1333 else
1334 FT_Done_Size (ftfont_info->ft_size);
1335 }
1336
1337 static int
1338 ftfont_has_char (font, c)
1339 Lisp_Object font;
1340 int c;
1341 {
1342 struct charset *cs = NULL;
1343
1344 if (EQ (AREF (font, FONT_ADSTYLE_INDEX), Qja)
1345 && charset_jisx0208 >= 0)
1346 cs = CHARSET_FROM_ID (charset_jisx0208);
1347 else if (EQ (AREF (font, FONT_ADSTYLE_INDEX), Qko)
1348 && charset_ksc5601 >= 0)
1349 cs = CHARSET_FROM_ID (charset_ksc5601);
1350 if (cs)
1351 return (ENCODE_CHAR (cs, c) != CHARSET_INVALID_CODE (cs));
1352
1353 if (FONT_ENTITY_P (font))
1354 {
1355 FcCharSet *charset = ftfont_get_fc_charset (font);
1356
1357 return (FcCharSetHasChar (charset, c) == FcTrue);
1358 }
1359 else
1360 {
1361 struct ftfont_info *ftfont_info;
1362
1363 ftfont_info = (struct ftfont_info *) XFONT_OBJECT (font);
1364 return (FT_Get_Char_Index (ftfont_info->ft_size->face, (FT_ULong) c)
1365 != 0);
1366 }
1367 }
1368
1369 static unsigned
1370 ftfont_encode_char (font, c)
1371 struct font *font;
1372 int c;
1373 {
1374 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
1375 FT_Face ft_face = ftfont_info->ft_size->face;
1376 FT_ULong charcode = c;
1377 FT_UInt code = FT_Get_Char_Index (ft_face, charcode);
1378
1379 return (code > 0 ? code : FONT_INVALID_CODE);
1380 }
1381
1382 static int
1383 ftfont_text_extents (font, code, nglyphs, metrics)
1384 struct font *font;
1385 unsigned *code;
1386 int nglyphs;
1387 struct font_metrics *metrics;
1388 {
1389 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
1390 FT_Face ft_face = ftfont_info->ft_size->face;
1391 int width = 0;
1392 int i, first;
1393
1394 if (ftfont_info->ft_size != ft_face->size)
1395 FT_Activate_Size (ftfont_info->ft_size);
1396 if (metrics)
1397 bzero (metrics, sizeof (struct font_metrics));
1398 for (i = 0, first = 1; i < nglyphs; i++)
1399 {
1400 if (FT_Load_Glyph (ft_face, code[i], FT_LOAD_DEFAULT) == 0)
1401 {
1402 FT_Glyph_Metrics *m = &ft_face->glyph->metrics;
1403
1404 if (first)
1405 {
1406 if (metrics)
1407 {
1408 metrics->lbearing = m->horiBearingX >> 6;
1409 metrics->rbearing = (m->horiBearingX + m->width) >> 6;
1410 metrics->ascent = m->horiBearingY >> 6;
1411 metrics->descent = (m->height - m->horiBearingY) >> 6;
1412 }
1413 first = 0;
1414 }
1415 if (metrics)
1416 {
1417 if (metrics->lbearing > width + (m->horiBearingX >> 6))
1418 metrics->lbearing = width + (m->horiBearingX >> 6);
1419 if (metrics->rbearing
1420 < width + ((m->horiBearingX + m->width) >> 6))
1421 metrics->rbearing
1422 = width + ((m->horiBearingX + m->width) >> 6);
1423 if (metrics->ascent < (m->horiBearingY >> 6))
1424 metrics->ascent = m->horiBearingY >> 6;
1425 if (metrics->descent > ((m->height - m->horiBearingY) >> 6))
1426 metrics->descent = (m->height - m->horiBearingY) >> 6;
1427 }
1428 width += m->horiAdvance >> 6;
1429 }
1430 else
1431 {
1432 width += font->space_width;
1433 }
1434 }
1435 if (metrics)
1436 metrics->width = width;
1437
1438 return width;
1439 }
1440
1441 static int
1442 ftfont_get_bitmap (font, code, bitmap, bits_per_pixel)
1443 struct font *font;
1444 unsigned code;
1445 struct font_bitmap *bitmap;
1446 int bits_per_pixel;
1447 {
1448 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
1449 FT_Face ft_face = ftfont_info->ft_size->face;
1450 FT_Int32 load_flags = FT_LOAD_RENDER;
1451
1452 if (ftfont_info->ft_size != ft_face->size)
1453 FT_Activate_Size (ftfont_info->ft_size);
1454 if (bits_per_pixel == 1)
1455 {
1456 #ifdef FT_LOAD_TARGET_MONO
1457 load_flags |= FT_LOAD_TARGET_MONO;
1458 #else
1459 load_flags |= FT_LOAD_MONOCHROME;
1460 #endif
1461 }
1462 else if (bits_per_pixel != 8)
1463
1464 return -1;
1465
1466 if (FT_Load_Glyph (ft_face, code, load_flags) != 0)
1467 return -1;
1468 bitmap->bits_per_pixel
1469 = (ft_face->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_MONO ? 1
1470 : ft_face->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_GRAY ? 8
1471 : ft_face->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_LCD ? 8
1472 : ft_face->glyph->bitmap.pixel_mode == FT_PIXEL_MODE_LCD_V ? 8
1473 : -1);
1474 if (bitmap->bits_per_pixel < 0)
1475
1476 return -1;
1477 bitmap->rows = ft_face->glyph->bitmap.rows;
1478 bitmap->width = ft_face->glyph->bitmap.width;
1479 bitmap->pitch = ft_face->glyph->bitmap.pitch;
1480 bitmap->buffer = ft_face->glyph->bitmap.buffer;
1481 bitmap->left = ft_face->glyph->bitmap_left;
1482 bitmap->top = ft_face->glyph->bitmap_top;
1483 bitmap->advance = ft_face->glyph->metrics.horiAdvance >> 6;
1484 bitmap->extra = NULL;
1485
1486 return 0;
1487 }
1488
1489 static int
1490 ftfont_anchor_point (font, code, index, x, y)
1491 struct font *font;
1492 unsigned code;
1493 int index;
1494 int *x, *y;
1495 {
1496 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
1497 FT_Face ft_face = ftfont_info->ft_size->face;
1498
1499 if (ftfont_info->ft_size != ft_face->size)
1500 FT_Activate_Size (ftfont_info->ft_size);
1501 if (FT_Load_Glyph (ft_face, code, FT_LOAD_DEFAULT) != 0)
1502 return -1;
1503 if (ft_face->glyph->format != FT_GLYPH_FORMAT_OUTLINE)
1504 return -1;
1505 if (index >= ft_face->glyph->outline.n_points)
1506 return -1;
1507 *x = ft_face->glyph->outline.points[index].x;
1508 *y = ft_face->glyph->outline.points[index].y;
1509 return 0;
1510 }
1511
1512 #ifdef HAVE_LIBOTF
1513
1514 static Lisp_Object
1515 ftfont_otf_features (gsub_gpos)
1516 OTF_GSUB_GPOS *gsub_gpos;
1517 {
1518 Lisp_Object scripts, langsyses, features, sym;
1519 int i, j, k, l;
1520
1521 for (scripts = Qnil, i = gsub_gpos->ScriptList.ScriptCount - 1; i >= 0; i--)
1522 {
1523 OTF_Script *otf_script = gsub_gpos->ScriptList.Script + i;
1524
1525 for (langsyses = Qnil, j = otf_script->LangSysCount - 1; j >= -1; j--)
1526 {
1527 OTF_LangSys *otf_langsys;
1528
1529 if (j >= 0)
1530 otf_langsys = otf_script->LangSys + j;
1531 else if (otf_script->DefaultLangSysOffset)
1532 otf_langsys = &otf_script->DefaultLangSys;
1533 else
1534 break;
1535
1536 for (features = Qnil, k = otf_langsys->FeatureCount - 1; k >= 0; k--)
1537 {
1538 l = otf_langsys->FeatureIndex[k];
1539 if (l >= gsub_gpos->FeatureList.FeatureCount)
1540 continue;
1541 OTF_TAG_SYM (sym, gsub_gpos->FeatureList.Feature[l].FeatureTag);
1542 features = Fcons (sym, features);
1543 }
1544 if (j >= 0)
1545 OTF_TAG_SYM (sym, otf_script->LangSysRecord[j].LangSysTag);
1546 else
1547 sym = Qnil;
1548 langsyses = Fcons (Fcons (sym, features), langsyses);
1549 }
1550
1551 OTF_TAG_SYM (sym, gsub_gpos->ScriptList.Script[i].ScriptTag);
1552 scripts = Fcons (Fcons (sym, langsyses), scripts);
1553 }
1554 return scripts;
1555
1556 }
1557
1558
1559 static Lisp_Object
1560 ftfont_otf_capability (font)
1561 struct font *font;
1562 {
1563 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
1564 OTF *otf = ftfont_get_otf (ftfont_info);
1565 Lisp_Object gsub_gpos;
1566
1567 if (! otf)
1568 return Qnil;
1569 gsub_gpos = Fcons (Qnil, Qnil);
1570 if (OTF_get_table (otf, "GSUB") == 0
1571 && otf->gsub->FeatureList.FeatureCount > 0)
1572 XSETCAR (gsub_gpos, ftfont_otf_features (otf->gsub));
1573 if (OTF_get_table (otf, "GPOS") == 0
1574 && otf->gpos->FeatureList.FeatureCount > 0)
1575 XSETCDR (gsub_gpos, ftfont_otf_features (otf->gpos));
1576 return gsub_gpos;
1577 }
1578
1579 #ifdef HAVE_M17N_FLT
1580
1581 #if (((LIBOTF_MAJOR_VERSION > 1) || (LIBOTF_RELEASE_NUMBER >= 10)) \
1582 && ((M17NLIB_MAJOR_VERSION > 1) || (M17NLIB_MINOR_VERSION >= 6)))
1583 1584 1585
1586 #define M17N_FLT_USE_NEW_FEATURE
1587 #endif
1588
1589 struct MFLTFontFT
1590 {
1591 MFLTFont flt_font;
1592 struct font *font;
1593 FT_Face ft_face;
1594 OTF *otf;
1595 FT_Matrix *matrix;
1596 };
1597
1598 static int
1599 ftfont_get_glyph_id (font, gstring, from, to)
1600 MFLTFont *font;
1601 MFLTGlyphString *gstring;
1602 int from, to;
1603 {
1604 struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font;
1605 FT_Face ft_face = flt_font_ft->ft_face;
1606 MFLTGlyph *g;
1607
1608 for (g = gstring->glyphs + from; from < to; g++, from++)
1609 if (! g->encoded)
1610 {
1611 FT_UInt code = FT_Get_Char_Index (ft_face, g->code);
1612
1613 g->code = code > 0 ? code : FONT_INVALID_CODE;
1614 g->encoded = 1;
1615 }
1616 return 0;
1617 }
1618
1619
1620
1621 #define FLOOR(x) ((x) & -64)
1622 #define CEIL(x) (((x)+63) & -64)
1623 #define ROUND(x) (((x)+32) & -64)
1624
1625 static int
1626 ftfont_get_metrics (font, gstring, from, to)
1627 MFLTFont *font;
1628 MFLTGlyphString *gstring;
1629 int from, to;
1630 {
1631 struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font;
1632 FT_Face ft_face = flt_font_ft->ft_face;
1633 MFLTGlyph *g;
1634
1635 for (g = gstring->glyphs + from; from < to; g++, from++)
1636 if (! g->measured)
1637 {
1638 if (g->code != FONT_INVALID_CODE)
1639 {
1640 FT_Glyph_Metrics *m;
1641 int lbearing, rbearing, ascent, descent, xadv;
1642
1643 if (FT_Load_Glyph (ft_face, g->code, FT_LOAD_DEFAULT) != 0)
1644 abort ();
1645 m = &ft_face->glyph->metrics;
1646 if (flt_font_ft->matrix)
1647 {
1648 FT_Vector v[4];
1649 int i;
1650
1651 v[0].x = v[1].x = m->horiBearingX;
1652 v[2].x = v[3].x = m->horiBearingX + m->width;
1653 v[0].y = v[2].y = m->horiBearingY;
1654 v[1].y = v[3].y = m->horiBearingY - m->height;
1655 for (i = 0; i < 4; i++)
1656 FT_Vector_Transform (v + i, flt_font_ft->matrix);
1657 g->lbearing = v[0].x < v[1].x ? FLOOR (v[0].x) : FLOOR (v[1].x);
1658 g->rbearing = v[2].x > v[3].x ? CEIL (v[2].x) : CEIL (v[3].x);
1659 g->ascent = v[0].y > v[2].y ? CEIL (v[0].y) : CEIL (v[2].y);
1660 g->descent = v[1].y < v[3].y ? - FLOOR (v[1].y) : - FLOOR (v[3].y);
1661 }
1662 else
1663 {
1664 g->lbearing = FLOOR (m->horiBearingX);
1665 g->rbearing = CEIL (m->horiBearingX + m->width);
1666 g->ascent = CEIL (m->horiBearingY);
1667 g->descent = - FLOOR (m->horiBearingY - m->height);
1668 }
1669 g->xadv = ROUND (ft_face->glyph->advance.x);
1670 }
1671 else
1672 {
1673 g->lbearing = 0;
1674 g->rbearing = g->xadv = flt_font_ft->font->space_width << 6;
1675 g->ascent = flt_font_ft->font->ascent << 6;
1676 g->descent = flt_font_ft->font->descent << 6;
1677 }
1678 g->yadv = 0;
1679 g->measured = 1;
1680 }
1681 return 0;
1682 }
1683
1684 static int
1685 ftfont_check_otf (MFLTFont *font, MFLTOtfSpec *spec)
1686 {
1687 struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font;
1688 OTF *otf = flt_font_ft->otf;
1689 OTF_Tag *tags;
1690 int i, n, negative;
1691
1692 for (i = 0; i < 2; i++)
1693 {
1694 if (! spec->features[i])
1695 continue;
1696 for (n = 0; spec->features[i][n]; n++);
1697 tags = alloca (sizeof (OTF_Tag) * n);
1698 for (n = 0, negative = 0; spec->features[i][n]; n++)
1699 {
1700 if (spec->features[i][n] == 0xFFFFFFFF)
1701 negative = 1;
1702 else if (negative)
1703 tags[n - 1] = spec->features[i][n] | 0x80000000;
1704 else
1705 tags[n] = spec->features[i][n];
1706 }
1707 #ifdef M17N_FLT_USE_NEW_FEATURE
1708 if (OTF_check_features (otf, i == 0, spec->script, spec->langsys,
1709 tags, n - negative) != 1)
1710 return 0;
1711 #else
1712 if (n - negative > 0
1713 && OTF_check_features (otf, i == 0, spec->script, spec->langsys,
1714 tags, n - negative) != 1)
1715 return 0;
1716 #endif
1717 }
1718 return 1;
1719 }
1720
1721 #define DEVICE_DELTA(table, size) \
1722 (((size) >= (table).StartSize && (size) <= (table).EndSize) \
1723 ? (table).DeltaValue[(size) - (table).StartSize] << 6 \
1724 : 0)
1725
1726 static void
1727 adjust_anchor (FT_Face ft_face, OTF_Anchor *anchor,
1728 unsigned code, int x_ppem, int y_ppem, int *x, int *y)
1729 {
1730 if (anchor->AnchorFormat == 2)
1731 {
1732 FT_Outline *outline;
1733 int ap = anchor->f.f1.AnchorPoint;
1734
1735 FT_Load_Glyph (ft_face, (FT_UInt) code, FT_LOAD_MONOCHROME);
1736 outline = &ft_face->glyph->outline;
1737 if (ap < outline->n_points)
1738 {
1739 *x = outline->points[ap].x << 6;
1740 *y = outline->points[ap].y << 6;
1741 }
1742 }
1743 else if (anchor->AnchorFormat == 3)
1744 {
1745 if (anchor->f.f2.XDeviceTable.offset
1746 && anchor->f.f2.XDeviceTable.DeltaValue)
1747 *x += DEVICE_DELTA (anchor->f.f2.XDeviceTable, x_ppem);
1748 if (anchor->f.f2.YDeviceTable.offset
1749 && anchor->f.f2.YDeviceTable.DeltaValue)
1750 *y += DEVICE_DELTA (anchor->f.f2.YDeviceTable, y_ppem);
1751 }
1752 }
1753
1754 static OTF_GlyphString otf_gstring;
1755
1756 static void
1757 setup_otf_gstring (int size)
1758 {
1759 if (otf_gstring.size == 0)
1760 {
1761 otf_gstring.glyphs = (OTF_Glyph *) xmalloc (sizeof (OTF_Glyph) * size);
1762 otf_gstring.size = size;
1763 }
1764 else if (otf_gstring.size < size)
1765 {
1766 otf_gstring.glyphs = xrealloc (otf_gstring.glyphs,
1767 sizeof (OTF_Glyph) * size);
1768 otf_gstring.size = size;
1769 }
1770 otf_gstring.used = size;
1771 memset (otf_gstring.glyphs, 0, sizeof (OTF_Glyph) * size);
1772 }
1773
1774 #ifdef M17N_FLT_USE_NEW_FEATURE
1775
1776
1777 #define PACK_OTF_TAG(TAG) \
1778 ((((TAG) & 0x7F000000) >> 3) \
1779 | (((TAG) & 0x7F0000) >> 2) \
1780 | (((TAG) & 0x7F00) >> 1) \
1781 | ((TAG) & 0x7F))
1782
1783 1784 1785 1786 1787
1788
1789 static int
1790 ftfont_drive_otf (font, spec, in, from, to, out, adjustment)
1791 MFLTFont *font;
1792 MFLTOtfSpec *spec;
1793 MFLTGlyphString *in;
1794 int from, to;
1795 MFLTGlyphString *out;
1796 MFLTGlyphAdjustment *adjustment;
1797 {
1798 struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font;
1799 FT_Face ft_face = flt_font_ft->ft_face;
1800 OTF *otf = flt_font_ft->otf;
1801 int len = to - from;
1802 int i, j, gidx;
1803 OTF_Glyph *otfg;
1804 char script[5], *langsys = NULL;
1805 char *gsub_features = NULL, *gpos_features = NULL;
1806 OTF_Feature *features;
1807
1808 if (len == 0)
1809 return from;
1810 OTF_tag_name (spec->script, script);
1811 if (spec->langsys)
1812 {
1813 langsys = alloca (5);
1814 OTF_tag_name (spec->langsys, langsys);
1815 }
1816 for (i = 0; i < 2; i++)
1817 {
1818 char *p;
1819
1820 if (spec->features[i] && spec->features[i][1] != 0xFFFFFFFF)
1821 {
1822 for (j = 0; spec->features[i][j]; j++);
1823 if (i == 0)
1824 p = gsub_features = alloca (6 * j);
1825 else
1826 p = gpos_features = alloca (6 * j);
1827 for (j = 0; spec->features[i][j]; j++)
1828 {
1829 if (spec->features[i][j] == 0xFFFFFFFF)
1830 *p++ = '*', *p++ = ',';
1831 else
1832 {
1833 OTF_tag_name (spec->features[i][j], p);
1834 p[4] = ',';
1835 p += 5;
1836 }
1837 }
1838 *--p = '\0';
1839 }
1840 }
1841
1842 setup_otf_gstring (len);
1843 for (i = 0; i < len; i++)
1844 {
1845 otf_gstring.glyphs[i].c = in->glyphs[from + i].c;
1846 otf_gstring.glyphs[i].glyph_id = in->glyphs[from + i].code;
1847 }
1848
1849 OTF_drive_gdef (otf, &otf_gstring);
1850 gidx = out ? out->used : from;
1851
1852 if (gsub_features && out)
1853 {
1854 if (OTF_drive_gsub_with_log (otf, &otf_gstring, script, langsys,
1855 gsub_features) < 0)
1856 goto simple_copy;
1857 if (out->allocated < out->used + otf_gstring.used)
1858 return -2;
1859 features = otf->gsub->FeatureList.Feature;
1860 for (i = 0, otfg = otf_gstring.glyphs; i < otf_gstring.used; )
1861 {
1862 MFLTGlyph *g;
1863 int min_from, max_to;
1864 int j;
1865 int feature_idx = otfg->positioning_type >> 4;
1866
1867 g = out->glyphs + out->used;
1868 *g = in->glyphs[from + otfg->f.index.from];
1869 if (g->code != otfg->glyph_id)
1870 {
1871 g->c = 0;
1872 g->code = otfg->glyph_id;
1873 g->measured = 0;
1874 }
1875 out->used++;
1876 min_from = g->from;
1877 max_to = g->to;
1878 if (otfg->f.index.from < otfg->f.index.to)
1879 {
1880
1881 for (j = from + otfg->f.index.from + 1;
1882 j <= from + otfg->f.index.to; j++)
1883 {
1884 if (min_from > in->glyphs[j].from)
1885 min_from = in->glyphs[j].from;
1886 if (max_to < in->glyphs[j].to)
1887 max_to = in->glyphs[j].to;
1888 }
1889 g->from = min_from;
1890 g->to = max_to;
1891 }
1892 if (feature_idx)
1893 {
1894 unsigned int tag = features[feature_idx - 1].FeatureTag;
1895 tag = PACK_OTF_TAG (tag);
1896 g->internal = (g->internal & ~0x1FFFFFFF) | tag;
1897 }
1898 for (i++, otfg++; (i < otf_gstring.used
1899 && otfg->f.index.from == otfg[-1].f.index.from);
1900 i++, otfg++)
1901 {
1902 g = out->glyphs + out->used;
1903 *g = in->glyphs[from + otfg->f.index.to];
1904 if (g->code != otfg->glyph_id)
1905 {
1906 g->c = 0;
1907 g->code = otfg->glyph_id;
1908 g->measured = 0;
1909 }
1910 feature_idx = otfg->positioning_type >> 4;
1911 if (feature_idx)
1912 {
1913 unsigned int tag = features[feature_idx - 1].FeatureTag;
1914 tag = PACK_OTF_TAG (tag);
1915 g->internal = (g->internal & ~0x1FFFFFFF) | tag;
1916 }
1917 out->used++;
1918 }
1919 }
1920 }
1921 else if (gsub_features)
1922 {
1923
1924 if (OTF_drive_gsub_with_log (otf, &otf_gstring, script, langsys,
1925 gsub_features) < 0)
1926 goto simple_copy;
1927 features = otf->gsub->FeatureList.Feature;
1928 for (i = 0, otfg = otf_gstring.glyphs; i < otf_gstring.used; i++,
1929 otfg++)
1930 {
1931 int feature_idx = otfg->positioning_type >> 4;
1932
1933 if (feature_idx)
1934 {
1935 unsigned int tag = features[feature_idx - 1].FeatureTag;
1936 tag = PACK_OTF_TAG (tag);
1937 for (j = otfg->f.index.from; j <= otfg->f.index.to; j++)
1938 {
1939 MFLTGlyph *g = in->glyphs + (from + j);
1940 g->internal = (g->internal & ~0x1FFFFFFF) | tag;
1941 }
1942 }
1943 }
1944 }
1945 else if (out)
1946 {
1947 if (out->allocated < out->used + len)
1948 return -2;
1949 for (i = 0; i < len; i++)
1950 out->glyphs[out->used++] = in->glyphs[from + i];
1951 }
1952
1953 if (gpos_features && out)
1954 {
1955 MFLTGlyph *base = NULL, *mark = NULL, *g;
1956 int x_ppem, y_ppem, x_scale, y_scale;
1957
1958 if (OTF_drive_gpos_with_log (otf, &otf_gstring, script, langsys,
1959 gpos_features) < 0)
1960 return to;
1961 features = otf->gpos->FeatureList.Feature;
1962 x_ppem = ft_face->size->metrics.x_ppem;
1963 y_ppem = ft_face->size->metrics.y_ppem;
1964 x_scale = ft_face->size->metrics.x_scale;
1965 y_scale = ft_face->size->metrics.y_scale;
1966
1967 for (i = 0, otfg = otf_gstring.glyphs, g = out->glyphs + gidx;
1968 i < otf_gstring.used; i++, otfg++, g++)
1969 {
1970 MFLTGlyph *prev;
1971 int feature_idx = otfg->positioning_type >> 4;
1972
1973 if (feature_idx)
1974 {
1975 unsigned int tag = features[feature_idx - 1].FeatureTag;
1976 tag = PACK_OTF_TAG (tag);
1977 g->internal = (g->internal & ~0x1FFFFFFF) | tag;
1978 }
1979
1980 if (! otfg->glyph_id)
1981 continue;
1982 switch (otfg->positioning_type & 0xF)
1983 {
1984 case 0:
1985 break;
1986 case 1:
1987 case 2:
1988 {
1989 int format = otfg->f.f1.format;
1990
1991 if (format & OTF_XPlacement)
1992 adjustment[i].xoff
1993 = otfg->f.f1.value->XPlacement * x_scale / 0x10000;
1994 if (format & OTF_XPlaDevice)
1995 adjustment[i].xoff
1996 += DEVICE_DELTA (otfg->f.f1.value->XPlaDevice, x_ppem);
1997 if (format & OTF_YPlacement)
1998 adjustment[i].yoff
1999 = - (otfg->f.f1.value->YPlacement * y_scale / 0x10000);
2000 if (format & OTF_YPlaDevice)
2001 adjustment[i].yoff
2002 -= DEVICE_DELTA (otfg->f.f1.value->YPlaDevice, y_ppem);
2003 if (format & OTF_XAdvance)
2004 adjustment[i].xadv
2005 += otfg->f.f1.value->XAdvance * x_scale / 0x10000;
2006 if (format & OTF_XAdvDevice)
2007 adjustment[i].xadv
2008 += DEVICE_DELTA (otfg->f.f1.value->XAdvDevice, x_ppem);
2009 if (format & OTF_YAdvance)
2010 adjustment[i].yadv
2011 += otfg->f.f1.value->YAdvance * y_scale / 0x10000;
2012 if (format & OTF_YAdvDevice)
2013 adjustment[i].yadv
2014 += DEVICE_DELTA (otfg->f.f1.value->YAdvDevice, y_ppem);
2015 adjustment[i].set = 1;
2016 }
2017 break;
2018 case 3:
2019
2020 break;
2021 case 4:
2022 case 5:
2023 if (! base)
2024 break;
2025 prev = base;
2026 goto label_adjust_anchor;
2027 default:
2028 if (! mark)
2029 break;
2030 prev = mark;
2031
2032 label_adjust_anchor:
2033 {
2034 int base_x, base_y, mark_x, mark_y;
2035 int this_from, this_to;
2036
2037 base_x = otfg->f.f4.base_anchor->XCoordinate * x_scale / 0x10000;
2038 base_y = otfg->f.f4.base_anchor->YCoordinate * y_scale / 0x10000;
2039 mark_x = otfg->f.f4.mark_anchor->XCoordinate * x_scale / 0x10000;
2040 mark_y = otfg->f.f4.mark_anchor->YCoordinate * y_scale / 0x10000;
2041
2042 if (otfg->f.f4.base_anchor->AnchorFormat != 1)
2043 adjust_anchor (ft_face, otfg->f.f4.base_anchor,
2044 prev->code, x_ppem, y_ppem, &base_x, &base_y);
2045 if (otfg->f.f4.mark_anchor->AnchorFormat != 1)
2046 adjust_anchor (ft_face, otfg->f.f4.mark_anchor, g->code,
2047 x_ppem, y_ppem, &mark_x, &mark_y);
2048 adjustment[i].xoff = (base_x - mark_x);
2049 adjustment[i].yoff = - (base_y - mark_y);
2050 adjustment[i].back = (g - prev);
2051 adjustment[i].xadv = 0;
2052 adjustment[i].advance_is_absolute = 1;
2053 adjustment[i].set = 1;
2054 this_from = g->from;
2055 this_to = g->to;
2056 for (j = 0; prev + j < g; j++)
2057 {
2058 if (this_from > prev[j].from)
2059 this_from = prev[j].from;
2060 if (this_to < prev[j].to)
2061 this_to = prev[j].to;
2062 }
2063 for (; prev <= g; prev++)
2064 {
2065 prev->from = this_from;
2066 prev->to = this_to;
2067 }
2068 }
2069 }
2070 if (otfg->GlyphClass == OTF_GlyphClass0)
2071 base = mark = g;
2072 else if (otfg->GlyphClass == OTF_GlyphClassMark)
2073 mark = g;
2074 else
2075 base = g;
2076 }
2077 }
2078 else if (gpos_features)
2079 {
2080 if (OTF_drive_gpos_with_log (otf, &otf_gstring, script, langsys,
2081 gpos_features) < 0)
2082 return to;
2083 features = otf->gpos->FeatureList.Feature;
2084 for (i = 0, otfg = otf_gstring.glyphs; i < otf_gstring.used;
2085 i++, otfg++)
2086 if (otfg->positioning_type & 0xF)
2087 {
2088 int feature_idx = otfg->positioning_type >> 4;
2089
2090 if (feature_idx)
2091 {
2092 unsigned int tag = features[feature_idx - 1].FeatureTag;
2093 tag = PACK_OTF_TAG (tag);
2094 for (j = otfg->f.index.from; j <= otfg->f.index.to; j++)
2095 {
2096 MFLTGlyph *g = in->glyphs + (from + j);
2097 g->internal = (g->internal & ~0x1FFFFFFF) | tag;
2098 }
2099 }
2100 }
2101 }
2102 return to;
2103
2104 simple_copy:
2105 if (! out)
2106 return to;
2107 if (out->allocated < out->used + len)
2108 return -2;
2109 font->get_metrics (font, in, from, to);
2110 memcpy (out->glyphs + out->used, in->glyphs + from,
2111 sizeof (MFLTGlyph) * len);
2112 out->used += len;
2113 return to;
2114 }
2115
2116 static int
2117 ftfont_try_otf (MFLTFont *font, MFLTOtfSpec *spec,
2118 MFLTGlyphString *in, int from, int to)
2119 {
2120 return ftfont_drive_otf (font, spec, in, from, to, NULL, NULL);
2121 }
2122
2123 #else
2124
2125 static int
2126 ftfont_drive_otf (font, spec, in, from, to, out, adjustment)
2127 MFLTFont *font;
2128 MFLTOtfSpec *spec;
2129 MFLTGlyphString *in;
2130 int from, to;
2131 MFLTGlyphString *out;
2132 MFLTGlyphAdjustment *adjustment;
2133 {
2134 struct MFLTFontFT *flt_font_ft = (struct MFLTFontFT *) font;
2135 FT_Face ft_face = flt_font_ft->ft_face;
2136 OTF *otf = flt_font_ft->otf;
2137 int len = to - from;
2138 int i, j, gidx;
2139 OTF_Glyph *otfg;
2140 char script[5], *langsys = NULL;
2141 char *gsub_features = NULL, *gpos_features = NULL;
2142
2143 if (len == 0)
2144 return from;
2145 OTF_tag_name (spec->script, script);
2146 if (spec->langsys)
2147 {
2148 langsys = alloca (5);
2149 OTF_tag_name (spec->langsys, langsys);
2150 }
2151 for (i = 0; i < 2; i++)
2152 {
2153 char *p;
2154
2155 if (spec->features[i] && spec->features[i][1] != 0xFFFFFFFF)
2156 {
2157 for (j = 0; spec->features[i][j]; j++);
2158 if (i == 0)
2159 p = gsub_features = alloca (6 * j);
2160 else
2161 p = gpos_features = alloca (6 * j);
2162 for (j = 0; spec->features[i][j]; j++)
2163 {
2164 if (spec->features[i][j] == 0xFFFFFFFF)
2165 *p++ = '*', *p++ = ',';
2166 else
2167 {
2168 OTF_tag_name (spec->features[i][j], p);
2169 p[4] = ',';
2170 p += 5;
2171 }
2172 }
2173 *--p = '\0';
2174 }
2175 }
2176
2177 setup_otf_gstring (len);
2178 for (i = 0; i < len; i++)
2179 {
2180 otf_gstring.glyphs[i].c = in->glyphs[from + i].c;
2181 otf_gstring.glyphs[i].glyph_id = in->glyphs[from + i].code;
2182 }
2183
2184 OTF_drive_gdef (otf, &otf_gstring);
2185 gidx = out->used;
2186
2187 if (gsub_features)
2188 {
2189 if (OTF_drive_gsub (otf, &otf_gstring, script, langsys, gsub_features)
2190 < 0)
2191 goto simple_copy;
2192 if (out->allocated < out->used + otf_gstring.used)
2193 return -2;
2194 for (i = 0, otfg = otf_gstring.glyphs; i < otf_gstring.used; )
2195 {
2196 MFLTGlyph *g;
2197 int min_from, max_to;
2198 int j;
2199
2200 g = out->glyphs + out->used;
2201 *g = in->glyphs[from + otfg->f.index.from];
2202 if (g->code != otfg->glyph_id)
2203 {
2204 g->c = 0;
2205 g->code = otfg->glyph_id;
2206 g->measured = 0;
2207 }
2208 out->used++;
2209 min_from = g->from;
2210 max_to = g->to;
2211 if (otfg->f.index.from < otfg->f.index.to)
2212 {
2213
2214 for (j = from + otfg->f.index.from + 1;
2215 j <= from + otfg->f.index.to; j++)
2216 {
2217 if (min_from > in->glyphs[j].from)
2218 min_from = in->glyphs[j].from;
2219 if (max_to < in->glyphs[j].to)
2220 max_to = in->glyphs[j].to;
2221 }
2222 g->from = min_from;
2223 g->to = max_to;
2224 }
2225 for (i++, otfg++; (i < otf_gstring.used
2226 && otfg->f.index.from == otfg[-1].f.index.from);
2227 i++, otfg++)
2228 {
2229 g = out->glyphs + out->used;
2230 *g = in->glyphs[from + otfg->f.index.to];
2231 if (g->code != otfg->glyph_id)
2232 {
2233 g->c = 0;
2234 g->code = otfg->glyph_id;
2235 g->measured = 0;
2236 }
2237 out->used++;
2238 }
2239 }
2240 }
2241 else
2242 {
2243 if (out->allocated < out->used + len)
2244 return -2;
2245 for (i = 0; i < len; i++)
2246 out->glyphs[out->used++] = in->glyphs[from + i];
2247 }
2248
2249 if (gpos_features)
2250 {
2251 MFLTGlyph *base = NULL, *mark = NULL, *g;
2252 int x_ppem, y_ppem, x_scale, y_scale;
2253
2254 if (OTF_drive_gpos (otf, &otf_gstring, script, langsys, gpos_features)
2255 < 0)
2256 return to;
2257
2258 x_ppem = ft_face->size->metrics.x_ppem;
2259 y_ppem = ft_face->size->metrics.y_ppem;
2260 x_scale = ft_face->size->metrics.x_scale;
2261 y_scale = ft_face->size->metrics.y_scale;
2262
2263 for (i = 0, otfg = otf_gstring.glyphs, g = out->glyphs + gidx;
2264 i < otf_gstring.used; i++, otfg++, g++)
2265 {
2266 MFLTGlyph *prev;
2267
2268 if (! otfg->glyph_id)
2269 continue;
2270 switch (otfg->positioning_type)
2271 {
2272 case 0:
2273 break;
2274 case 1:
2275 case 2:
2276 {
2277 int format = otfg->f.f1.format;
2278
2279 if (format & OTF_XPlacement)
2280 adjustment[i].xoff
2281 = otfg->f.f1.value->XPlacement * x_scale / 0x10000;
2282 if (format & OTF_XPlaDevice)
2283 adjustment[i].xoff
2284 += DEVICE_DELTA (otfg->f.f1.value->XPlaDevice, x_ppem);
2285 if (format & OTF_YPlacement)
2286 adjustment[i].yoff
2287 = - (otfg->f.f1.value->YPlacement * y_scale / 0x10000);
2288 if (format & OTF_YPlaDevice)
2289 adjustment[i].yoff
2290 -= DEVICE_DELTA (otfg->f.f1.value->YPlaDevice, y_ppem);
2291 if (format & OTF_XAdvance)
2292 adjustment[i].xadv
2293 += otfg->f.f1.value->XAdvance * x_scale / 0x10000;
2294 if (format & OTF_XAdvDevice)
2295 adjustment[i].xadv
2296 += DEVICE_DELTA (otfg->f.f1.value->XAdvDevice, x_ppem);
2297 if (format & OTF_YAdvance)
2298 adjustment[i].yadv
2299 += otfg->f.f1.value->YAdvance * y_scale / 0x10000;
2300 if (format & OTF_YAdvDevice)
2301 adjustment[i].yadv
2302 += DEVICE_DELTA (otfg->f.f1.value->YAdvDevice, y_ppem);
2303 adjustment[i].set = 1;
2304 }
2305 break;
2306 case 3:
2307
2308 break;
2309 case 4:
2310 case 5:
2311 if (! base)
2312 break;
2313 prev = base;
2314 goto label_adjust_anchor;
2315 default:
2316 if (! mark)
2317 break;
2318 prev = mark;
2319
2320 label_adjust_anchor:
2321 {
2322 int base_x, base_y, mark_x, mark_y;
2323 int this_from, this_to;
2324
2325 base_x = otfg->f.f4.base_anchor->XCoordinate * x_scale / 0x10000;
2326 base_y = otfg->f.f4.base_anchor->YCoordinate * y_scale / 0x10000;
2327 mark_x = otfg->f.f4.mark_anchor->XCoordinate * x_scale / 0x10000;
2328 mark_y = otfg->f.f4.mark_anchor->YCoordinate * y_scale / 0x10000;
2329
2330 if (otfg->f.f4.base_anchor->AnchorFormat != 1)
2331 adjust_anchor (ft_face, otfg->f.f4.base_anchor,
2332 prev->code, x_ppem, y_ppem, &base_x, &base_y);
2333 if (otfg->f.f4.mark_anchor->AnchorFormat != 1)
2334 adjust_anchor (ft_face, otfg->f.f4.mark_anchor, g->code,
2335 x_ppem, y_ppem, &mark_x, &mark_y);
2336 adjustment[i].xoff = (base_x - mark_x);
2337 adjustment[i].yoff = - (base_y - mark_y);
2338 adjustment[i].back = (g - prev);
2339 adjustment[i].xadv = 0;
2340 adjustment[i].advance_is_absolute = 1;
2341 adjustment[i].set = 1;
2342 this_from = g->from;
2343 this_to = g->to;
2344 for (j = 0; prev + j < g; j++)
2345 {
2346 if (this_from > prev[j].from)
2347 this_from = prev[j].from;
2348 if (this_to < prev[j].to)
2349 this_to = prev[j].to;
2350 }
2351 for (; prev <= g; prev++)
2352 {
2353 prev->from = this_from;
2354 prev->to = this_to;
2355 }
2356 }
2357 }
2358 if (otfg->GlyphClass == OTF_GlyphClass0)
2359 base = mark = g;
2360 else if (otfg->GlyphClass == OTF_GlyphClassMark)
2361 mark = g;
2362 else
2363 base = g;
2364 }
2365 }
2366 return to;
2367
2368 simple_copy:
2369 if (out->allocated < out->used + len)
2370 return -2;
2371 font->get_metrics (font, in, from, to);
2372 memcpy (out->glyphs + out->used, in->glyphs + from,
2373 sizeof (MFLTGlyph) * len);
2374 out->used += len;
2375 return to;
2376 }
2377
2378 #endif
2379
2380 static MFLTGlyphString gstring;
2381
2382 static int m17n_flt_initialized;
2383
2384 extern Lisp_Object QCfamily;
2385
2386 static Lisp_Object
2387 ftfont_shape_by_flt (lgstring, font, ft_face, otf, matrix)
2388 Lisp_Object lgstring;
2389 struct font *font;
2390 FT_Face ft_face;
2391 OTF *otf;
2392 FT_Matrix *matrix;
2393 {
2394 EMACS_UINT len = LGSTRING_GLYPH_LEN (lgstring);
2395 EMACS_UINT i;
2396 struct MFLTFontFT flt_font_ft;
2397 MFLT *flt = NULL;
2398 int with_variation_selector = 0;
2399
2400 if (! m17n_flt_initialized)
2401 {
2402 M17N_INIT ();
2403 #ifdef M17N_FLT_USE_NEW_FEATURE
2404 mflt_enable_new_feature = 1;
2405 mflt_try_otf = ftfont_try_otf;
2406 #endif
2407 m17n_flt_initialized = 1;
2408 }
2409
2410 for (i = 0; i < len; i++)
2411 {
2412 Lisp_Object g = LGSTRING_GLYPH (lgstring, i);
2413 int c;
2414
2415 if (NILP (g))
2416 break;
2417 c = LGLYPH_CHAR (g);
2418 if (CHAR_VARIATION_SELECTOR_P (c))
2419 with_variation_selector++;
2420 }
2421 len = i;
2422 if (with_variation_selector)
2423 {
2424 setup_otf_gstring (len);
2425 for (i = 0; i < len; i++)
2426 {
2427 Lisp_Object g = LGSTRING_GLYPH (lgstring, i);
2428
2429 otf_gstring.glyphs[i].c = LGLYPH_CHAR (g);
2430 otf_gstring.glyphs[i].f.index.from = LGLYPH_FROM (g);
2431 otf_gstring.glyphs[i].f.index.to = LGLYPH_TO (g);
2432 }
2433 OTF_drive_cmap (otf, &otf_gstring);
2434 for (i = 0; i < otf_gstring.used; i++)
2435 {
2436 OTF_Glyph *otfg = otf_gstring.glyphs + i;
2437 Lisp_Object g0 = LGSTRING_GLYPH (lgstring, otfg->f.index.from);
2438 Lisp_Object g1 = LGSTRING_GLYPH (lgstring, otfg->f.index.to);
2439
2440 LGLYPH_SET_CODE (g0, otfg->glyph_id);
2441 LGLYPH_SET_TO (g0, LGLYPH_TO (g1));
2442 LGSTRING_SET_GLYPH (lgstring, i, g0);
2443 }
2444 if (len > otf_gstring.used)
2445 {
2446 len = otf_gstring.used;
2447 LGSTRING_SET_GLYPH (lgstring, len, Qnil);
2448 }
2449 }
2450
2451 if (gstring.allocated == 0)
2452 {
2453 gstring.allocated = len * 2;
2454 gstring.glyph_size = sizeof (MFLTGlyph);
2455 gstring.glyphs = xmalloc (sizeof (MFLTGlyph) * gstring.allocated);
2456 }
2457 else if (gstring.allocated < len * 2)
2458 {
2459 gstring.allocated = len * 2;
2460 gstring.glyphs = xrealloc (gstring.glyphs,
2461 sizeof (MFLTGlyph) * gstring.allocated);
2462 }
2463 memset (gstring.glyphs, 0, sizeof (MFLTGlyph) * len);
2464 for (i = 0; i < len; i++)
2465 {
2466 Lisp_Object g = LGSTRING_GLYPH (lgstring, i);
2467
2468 gstring.glyphs[i].c = LGLYPH_CHAR (g);
2469 if (with_variation_selector)
2470 {
2471 gstring.glyphs[i].code = LGLYPH_CODE (g);
2472 gstring.glyphs[i].encoded = 1;
2473 }
2474 }
2475
2476 gstring.used = len;
2477 gstring.r2l = 0;
2478
2479 {
2480 Lisp_Object family = Ffont_get (LGSTRING_FONT (lgstring), QCfamily);
2481
2482 if (NILP (family))
2483 flt_font_ft.flt_font.family = Mnil;
2484 else
2485 flt_font_ft.flt_font.family
2486 = msymbol ((char *) SDATA (Fdowncase (SYMBOL_NAME (family))));
2487 }
2488 flt_font_ft.flt_font.x_ppem = ft_face->size->metrics.x_ppem;
2489 flt_font_ft.flt_font.y_ppem = ft_face->size->metrics.y_ppem;
2490 flt_font_ft.flt_font.get_glyph_id = ftfont_get_glyph_id;
2491 flt_font_ft.flt_font.get_metrics = ftfont_get_metrics;
2492 flt_font_ft.flt_font.check_otf = ftfont_check_otf;
2493 flt_font_ft.flt_font.drive_otf = ftfont_drive_otf;
2494 flt_font_ft.flt_font.internal = NULL;
2495 flt_font_ft.font = font;
2496 flt_font_ft.ft_face = ft_face;
2497 flt_font_ft.otf = otf;
2498 flt_font_ft.matrix = matrix->xx != 0 ? matrix : 0;
2499 if (len > 1
2500 && gstring.glyphs[1].c >= 0x300 && gstring.glyphs[1].c <= 0x36F)
2501 2502 2503
2504 flt = mflt_get (msymbol ("combining"));
2505 for (i = 0; i < 3; i++)
2506 {
2507 int result = mflt_run (&gstring, 0, len, &flt_font_ft.flt_font, flt);
2508 if (result != -2)
2509 break;
2510 gstring.allocated += gstring.allocated;
2511 gstring.glyphs = xrealloc (gstring.glyphs,
2512 sizeof (MFLTGlyph) * gstring.allocated);
2513 }
2514 if (gstring.used > LGSTRING_GLYPH_LEN (lgstring))
2515 return Qnil;
2516 for (i = 0; i < gstring.used; i++)
2517 {
2518 MFLTGlyph *g = gstring.glyphs + i;
2519
2520 g->from = LGLYPH_FROM (LGSTRING_GLYPH (lgstring, g->from));
2521 g->to = LGLYPH_TO (LGSTRING_GLYPH (lgstring, g->to));
2522 }
2523
2524 for (i = 0; i < gstring.used; i++)
2525 {
2526 Lisp_Object lglyph = LGSTRING_GLYPH (lgstring, i);
2527 MFLTGlyph *g = gstring.glyphs + i;
2528
2529 if (NILP (lglyph))
2530 {
2531 lglyph = Fmake_vector (make_number (LGLYPH_SIZE), Qnil);
2532 LGSTRING_SET_GLYPH (lgstring, i, lglyph);
2533 }
2534 LGLYPH_SET_FROM (lglyph, g->from);
2535 LGLYPH_SET_TO (lglyph, g->to);
2536 LGLYPH_SET_CHAR (lglyph, g->c);
2537 LGLYPH_SET_CODE (lglyph, g->code);
2538 LGLYPH_SET_WIDTH (lglyph, g->xadv >> 6);
2539 LGLYPH_SET_LBEARING (lglyph, g->lbearing >> 6);
2540 LGLYPH_SET_RBEARING (lglyph, g->rbearing >> 6);
2541 LGLYPH_SET_ASCENT (lglyph, g->ascent >> 6);
2542 LGLYPH_SET_DESCENT (lglyph, g->descent >> 6);
2543 if (g->adjusted)
2544 {
2545 Lisp_Object vec;
2546
2547 vec = Fmake_vector (make_number (3), Qnil);
2548 ASET (vec, 0, make_number (g->xoff >> 6));
2549 ASET (vec, 1, make_number (g->yoff >> 6));
2550 ASET (vec, 2, make_number (g->xadv >> 6));
2551 LGLYPH_SET_ADJUSTMENT (lglyph, vec);
2552 }
2553 }
2554 return make_number (i);
2555 }
2556
2557 Lisp_Object
2558 ftfont_shape (lgstring)
2559 Lisp_Object lgstring;
2560 {
2561 struct font *font;
2562 struct ftfont_info *ftfont_info;
2563 OTF *otf;
2564
2565 CHECK_FONT_GET_OBJECT (LGSTRING_FONT (lgstring), font);
2566 ftfont_info = (struct ftfont_info *) font;
2567 otf = ftfont_get_otf (ftfont_info);
2568 if (! otf)
2569 return make_number (0);
2570 return ftfont_shape_by_flt (lgstring, font, ftfont_info->ft_size->face, otf,
2571 &ftfont_info->matrix);
2572 }
2573
2574 #endif
2575
2576 #ifdef HAVE_OTF_GET_VARIATION_GLYPHS
2577
2578 static int
2579 ftfont_variation_glyphs (font, c, variations)
2580 struct font *font;
2581 int c;
2582 unsigned variations[256];
2583 {
2584 struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
2585 OTF *otf = ftfont_get_otf (ftfont_info);
2586
2587 if (! otf)
2588 return 0;
2589 return OTF_get_variation_glyphs (otf, c, variations);
2590 }
2591
2592 #endif
2593 #endif
2594
2595 Lisp_Object
2596 ftfont_font_format (FcPattern *pattern, Lisp_Object filename)
2597 {
2598 FcChar8 *str;
2599
2600 #ifdef FC_FONTFORMAT
2601 if (pattern)
2602 {
2603 if (FcPatternGetString (pattern, FC_FONTFORMAT, 0, &str) != FcResultMatch)
2604 return Qnil;
2605 if (strcmp ((char *) str, "TrueType") == 0)
2606 return intern ("truetype");
2607 if (strcmp ((char *) str, "Type 1") == 0)
2608 return intern ("type1");
2609 if (strcmp ((char *) str, "PCF") == 0)
2610 return intern ("pcf");
2611 if (strcmp ((char *) str, "BDF") == 0)
2612 return intern ("bdf");
2613 }
2614 #endif
2615 if (STRINGP (filename))
2616 {
2617 int len = SBYTES (filename);
2618
2619 if (len >= 4)
2620 {
2621 str = (FcChar8 *) (SDATA (filename) + len - 4);
2622 if (xstrcasecmp ((char *) str, ".ttf") == 0)
2623 return intern ("truetype");
2624 if (xstrcasecmp ((char *) str, ".pfb") == 0)
2625 return intern ("type1");
2626 if (xstrcasecmp ((char *) str, ".pcf") == 0)
2627 return intern ("pcf");
2628 if (xstrcasecmp ((char *) str, ".bdf") == 0)
2629 return intern ("bdf");
2630 }
2631 }
2632 return intern ("unknown");
2633 }
2634
2635 static const char *ftfont_booleans [] = {
2636 ":antialias",
2637 ":hinting",
2638 ":verticallayout",
2639 ":autohint",
2640 ":globaladvance",
2641 ":outline",
2642 ":scalable",
2643 ":minspace",
2644 ":embolden",
2645 NULL,
2646 };
2647
2648 static const char *ftfont_non_booleans [] = {
2649 ":family",
2650 ":familylang",
2651 ":style",
2652 ":stylelang",
2653 ":fullname",
2654 ":fullnamelang",
2655 ":slant",
2656 ":weight",
2657 ":size",
2658 ":width",
2659 ":aspect",
2660 ":pixelsize",
2661 ":spacing",
2662 ":foundry",
2663 ":hintstyle",
2664 ":file",
2665 ":index",
2666 ":ftface",
2667 ":rasterizer",
2668 ":scale",
2669 ":dpi",
2670 ":rgba",
2671 ":lcdfilter",
2672 ":charset",
2673 ":lang",
2674 ":fontversion",
2675 ":capability",
2676 NULL,
2677 };
2678
2679 static void
2680 ftfont_filter_properties (font, alist)
2681 Lisp_Object font;
2682 Lisp_Object alist;
2683 {
2684 Lisp_Object it;
2685 int i;
2686
2687
2688 for (i = 0; ftfont_booleans[i] != NULL; ++i)
2689 for (it = alist; ! NILP (it); it = XCDR (it))
2690 {
2691 Lisp_Object key = XCAR (XCAR (it));
2692 Lisp_Object val = XCDR (XCAR (it));
2693 char *keystr = SDATA (SYMBOL_NAME (key));
2694
2695 if (strcmp (ftfont_booleans[i], keystr) == 0)
2696 {
2697 char *str = SYMBOLP (val) ? SDATA (SYMBOL_NAME (val)) : NULL;
2698 if (INTEGERP (val)) str = XINT (val) != 0 ? "true" : "false";
2699 if (str == NULL) str = "true";
2700
2701 val = Qt;
2702 if (strcmp ("false", str) == 0 || strcmp ("False", str) == 0
2703 || strcmp ("FALSE", str) == 0 || strcmp ("FcFalse", str) == 0
2704 || strcmp ("off", str) == 0 || strcmp ("OFF", str) == 0
2705 || strcmp ("Off", str) == 0)
2706 val = Qnil;
2707 Ffont_put (font, key, val);
2708 }
2709 }
2710
2711 for (i = 0; ftfont_non_booleans[i] != NULL; ++i)
2712 for (it = alist; ! NILP (it); it = XCDR (it))
2713 {
2714 Lisp_Object key = XCAR (XCAR (it));
2715 Lisp_Object val = XCDR (XCAR (it));
2716 char *keystr = SDATA (SYMBOL_NAME (key));
2717 if (strcmp (ftfont_non_booleans[i], keystr) == 0)
2718 Ffont_put (font, key, val);
2719 }
2720 }
2721
2722
2723 void
2724 syms_of_ftfont ()
2725 {
2726 DEFSYM (Qfreetype, "freetype");
2727 DEFSYM (Qmonospace, "monospace");
2728 DEFSYM (Qsans_serif, "sans-serif");
2729 DEFSYM (Qserif, "serif");
2730 DEFSYM (Qmono, "mono");
2731 DEFSYM (Qsans, "sans");
2732 DEFSYM (Qsans__serif, "sans serif");
2733
2734 staticpro (&freetype_font_cache);
2735 freetype_font_cache = Fcons (Qt, Qnil);
2736
2737 staticpro (&ftfont_generic_family_list);
2738 ftfont_generic_family_list
2739 = Fcons (Fcons (Qmonospace, Qt),
2740 Fcons (Fcons (Qsans_serif, Qt),
2741 Fcons (Fcons (Qsans, Qt), Qnil)));
2742
2743 staticpro (&ft_face_cache);
2744 ft_face_cache = Qnil;
2745
2746 ftfont_driver.type = Qfreetype;
2747 register_font_driver (&ftfont_driver, NULL);
2748 }
2749
2750 2751