1 /* ftfont.c -- FreeType font driver.
2 Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
3 Copyright (C) 2006, 2007, 2008
4 National Institute of Advanced Industrial Science and Technology (AIST)
5 Registration Number H13PRO009
7 This file is part of GNU Emacs.
9 GNU Emacs is free software: you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation, either version 3 of the License, or
12 (at your option) any later version.
14 GNU Emacs is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
25 #include <fontconfig/fontconfig.h>
26 #include <fontconfig/fcfreetype.h>
29 #include "dispextern.h"
31 #include "blockinput.h"
32 #include "character.h"
39 /* Symbolic type of this font-driver. */
40 Lisp_Object Qfreetype
;
42 /* Fontconfig's generic families and their aliases. */
43 static Lisp_Object Qmonospace
, Qsans_serif
, Qserif
, Qmono
, Qsans
, Qsans__serif
;
45 /* Flag to tell if FcInit is areadly called or not. */
46 static int fc_initialized
;
48 /* Handle to a FreeType library instance. */
49 static FT_Library ft_library
;
51 /* Cache for FreeType fonts. */
52 static Lisp_Object freetype_font_cache
;
54 /* Cache for FT_Face */
55 static Lisp_Object ft_face_cache
;
57 /* The actual structure for FreeType font that can be casted to struct
66 int maybe_otf
; /* Flag to tell if this may be OTF or not. */
68 #endif /* HAVE_LIBOTF */
71 static Lisp_Object ftfont_pattern_entity
P_ ((FcPattern
*, Lisp_Object
, int));
73 static Lisp_Object ftfont_resolve_generic_family
P_ ((Lisp_Object
));
74 Lisp_Object ftfont_font_format
P_ ((FcPattern
*));
76 #define SYMBOL_FcChar8(SYM) (FcChar8 *) SDATA (SYMBOL_NAME (SYM))
82 /* characters to distinguish the charset from the others */
84 /* set in syms_of_ftfont */
87 FcCharSet
*fc_charset
;
88 } fc_charset_table
[] =
89 { { "iso-8859-1", { 0x00A0, 0x00A1, 0x00B4, 0x00BC, 0x00D0 }, -1 },
90 { "iso-8859-2", { 0x00A0, 0x010E }},
91 { "iso-8859-3", { 0x00A0, 0x0108 }},
92 { "iso-8859-4", { 0x00A0, 0x00AF, 0x0128, 0x0156, 0x02C7 }},
93 { "iso-8859-5", { 0x00A0, 0x0401 }},
94 { "iso-8859-6", { 0x00A0, 0x060C }},
95 { "iso-8859-7", { 0x00A0, 0x0384 }},
96 { "iso-8859-8", { 0x00A0, 0x05D0 }},
97 { "iso-8859-9", { 0x00A0, 0x00A1, 0x00BC, 0x011E }},
98 { "iso-8859-10", { 0x00A0, 0x00D0, 0x0128, 0x2015 }},
99 { "iso-8859-11", { 0x00A0, 0x0E01 }},
100 { "iso-8859-13", { 0x00A0, 0x201C }},
101 { "iso-8859-14", { 0x00A0, 0x0174 }},
102 { "iso-8859-15", { 0x00A0, 0x00A1, 0x00D0, 0x0152 }},
103 { "iso-8859-16", { 0x00A0, 0x0218}},
104 { "chinese-gb2312", { 0x4E13 }},
105 { "big5", { 0xF6B1 }},
106 { "japanese-jisx0208", { 0x4E55 }},
107 { "korean-ksc5601", { 0xAC00 }},
108 { "chinese-cns11643-1", { 0xFE32 }},
109 { "chinese-cns11643-2", { 0x4E33, 0x7934 }},
110 { "chinese-cns11643-3", { 0x201A9 }},
111 { "chinese-cns11643-4", { 0x20057 }},
112 { "chinese-cns11643-5", { 0x20000 }},
113 { "chinese-cns11643-6", { 0x20003 }},
114 { "chinese-cns11643-7", { 0x20055 }},
115 { "chinese-gbk", { 0x4E06 }},
116 { "japanese-jisx0212", { 0x4E44 }},
117 { "japanese-jisx0213-1", { 0xFA10 }},
118 { "japanese-jisx0213-2", { 0xFA49 }},
119 { "japanese-jisx0213.2004-1", { 0x20B9F }},
120 { "viscii", { 0x1EA0, 0x1EAE, 0x1ED2 }},
121 { "tis620", { 0x0E01 }},
122 { "windows-1251", { 0x0401, 0x0490 }},
123 { "koi8-r", { 0x0401, 0x2219 }},
124 { "mule-lao", { 0x0E81 }},
128 extern Lisp_Object Qc
, Qm
, Qp
, Qd
;
131 ftfont_pattern_entity (p
, registry
, fc_charset_idx
)
133 Lisp_Object registry
;
142 if (FcPatternGetString (p
, FC_FILE
, 0, (FcChar8
**) &file
) != FcResultMatch
)
145 entity
= font_make_entity ();
147 ASET (entity
, FONT_TYPE_INDEX
, Qfreetype
);
148 ASET (entity
, FONT_REGISTRY_INDEX
, registry
);
150 if (FcPatternGetString (p
, FC_FOUNDRY
, 0, (FcChar8
**) &str
) == FcResultMatch
)
151 ASET (entity
, FONT_FOUNDRY_INDEX
, font_intern_prop (str
, strlen (str
)));
152 if (FcPatternGetString (p
, FC_FAMILY
, 0, (FcChar8
**) &str
) == FcResultMatch
)
153 ASET (entity
, FONT_FAMILY_INDEX
, font_intern_prop (str
, strlen (str
)));
154 if (FcPatternGetInteger (p
, FC_WEIGHT
, 0, &numeric
) == FcResultMatch
)
156 if (numeric
>= FC_WEIGHT_REGULAR
&& numeric
< FC_WEIGHT_MEDIUM
)
157 numeric
= FC_WEIGHT_MEDIUM
;
158 FONT_SET_STYLE (entity
, FONT_WEIGHT_INDEX
, make_number (numeric
));
160 if (FcPatternGetInteger (p
, FC_SLANT
, 0, &numeric
) == FcResultMatch
)
163 FONT_SET_STYLE (entity
, FONT_SLANT_INDEX
, make_number (numeric
));
165 if (FcPatternGetInteger (p
, FC_WIDTH
, 0, &numeric
) == FcResultMatch
)
167 FONT_SET_STYLE (entity
, FONT_WIDTH_INDEX
, make_number (numeric
));
169 if (FcPatternGetDouble (p
, FC_PIXEL_SIZE
, 0, &dbl
) == FcResultMatch
)
170 ASET (entity
, FONT_SIZE_INDEX
, make_number (dbl
));
172 ASET (entity
, FONT_SIZE_INDEX
, make_number (0));
173 if (FcPatternGetInteger (p
, FC_SPACING
, 0, &numeric
) == FcResultMatch
)
174 ASET (entity
, FONT_SPACING_INDEX
, make_number (numeric
));
175 if (FcPatternGetDouble (p
, FC_DPI
, 0, &dbl
) == FcResultMatch
)
178 ASET (entity
, FONT_DPI_INDEX
, make_number (dpi
));
180 if (FcPatternGetBool (p
, FC_SCALABLE
, 0, &b
) == FcResultMatch
182 ASET (entity
, FONT_AVGWIDTH_INDEX
, make_number (0));
184 font_put_extra (entity
, QCfont_entity
,
185 Fcons (make_unibyte_string ((char *) file
,
186 strlen ((char *) file
)),
187 make_number (fc_charset_idx
)));
192 static Lisp_Object ftfont_generic_family_list
;
195 ftfont_resolve_generic_family (family
)
199 FcPattern
*pattern
= NULL
, *match
;
202 family
= Fintern (Fdowncase (SYMBOL_NAME (family
)), Qnil
);
203 if (EQ (family
, Qmono
))
205 else if (EQ (family
, Qsans
) || EQ (family
, Qsans__serif
))
206 family
= Qsans_serif
;
207 slot
= assq_no_quit (family
, ftfont_generic_family_list
);
210 if (! EQ (XCDR (slot
), Qt
))
212 pattern
= FcPatternBuild (NULL
, FC_FAMILY
, FcTypeString
,
213 SYMBOL_FcChar8 (family
), (char *) 0);
216 FcConfigSubstitute (NULL
, pattern
, FcMatchPattern
);
217 FcDefaultSubstitute (pattern
);
218 match
= FcFontMatch (NULL
, pattern
, &result
);
223 if (FcPatternGetString (match
, FC_FAMILY
, 0, &fam
) == FcResultMatch
)
224 family
= intern ((char *) fam
);
228 XSETCDR (slot
, family
);
230 if (match
) FcPatternDestroy (match
);
231 if (pattern
) FcPatternDestroy (pattern
);
236 ftfont_lookup_cache (filename
)
237 Lisp_Object filename
;
239 Lisp_Object cache
, val
;
241 cache
= assoc_no_quit (filename
, ft_face_cache
);
244 val
= make_save_value (NULL
, 0);
245 cache
= Fcons (filename
, val
);
246 ft_face_cache
= Fcons (cache
, ft_face_cache
);
250 if (! XSAVE_VALUE (val
)->pointer
)
255 && FT_Init_FreeType (&ft_library
) != 0)
257 if (FT_New_Face (ft_library
, (char *) SDATA (filename
), 0, &ft_face
) != 0)
259 XSAVE_VALUE (val
)->pointer
= ft_face
;
264 static Lisp_Object ftfont_get_cache
P_ ((FRAME_PTR
));
265 static Lisp_Object ftfont_list
P_ ((Lisp_Object
, Lisp_Object
));
266 static Lisp_Object ftfont_match
P_ ((Lisp_Object
, Lisp_Object
));
267 static Lisp_Object ftfont_list_family
P_ ((Lisp_Object
));
268 static Lisp_Object ftfont_open
P_ ((FRAME_PTR
, Lisp_Object
, int));
269 static void ftfont_close
P_ ((FRAME_PTR
, struct font
*));
270 static int ftfont_has_char
P_ ((Lisp_Object
, int));
271 static unsigned ftfont_encode_char
P_ ((struct font
*, int));
272 static int ftfont_text_extents
P_ ((struct font
*, unsigned *, int,
273 struct font_metrics
*));
274 static int ftfont_get_bitmap
P_ ((struct font
*, unsigned,
275 struct font_bitmap
*, int));
276 static int ftfont_anchor_point
P_ ((struct font
*, unsigned, int,
278 static Lisp_Object ftfont_shape
P_ ((Lisp_Object
));
280 struct font_driver ftfont_driver
=
283 0, /* case insensitive */
291 /* We can't draw a text without device dependent functions. */
297 /* We can't draw a text without device dependent functions. */
308 #if defined (HAVE_M17N_FLT) && defined (HAVE_LIBOTF)
310 #else /* not (HAVE_M17N_FLT && HAVE_LIBOTF) */
312 #endif /* not (HAVE_M17N_FLT && HAVE_LIBOTF) */
315 extern Lisp_Object QCname
;
321 return freetype_font_cache
;
325 ftfont_get_charset (registry
)
326 Lisp_Object registry
;
328 struct charset
*encoding
;
331 if (font_registry_charsets (registry
, &encoding
, NULL
) < 0)
333 if (fc_charset_table
[0].charset_id
< 0)
334 /* Setup charset_id field of all elements. */
335 for (i
= 0; fc_charset_table
[i
].name
; i
++)
337 Lisp_Object sym
= intern (fc_charset_table
[i
].name
);
340 fc_charset_table
[i
].charset_id
= XINT (CHARSET_SYMBOL_ID (sym
));
342 fc_charset_table
[i
].charset_id
= -1;
345 for (i
= 0; fc_charset_table
[i
].name
; i
++)
346 if (encoding
->id
== fc_charset_table
[i
].charset_id
)
348 if (! fc_charset_table
[i
].name
)
350 if (! fc_charset_table
[i
].fc_charset
)
352 FcCharSet
*charset
= FcCharSetCreate ();
353 int *uniquifier
= fc_charset_table
[i
].uniquifier
;
357 for (j
= 0; uniquifier
[j
]; j
++)
358 if (! FcCharSetAddChar (charset
, uniquifier
[j
]))
360 FcCharSetDestroy (charset
);
363 fc_charset_table
[i
].fc_charset
= charset
;
371 unsigned int script_tag
, langsys_tag
;
373 unsigned int *features
[2];
376 #define OTF_SYM_TAG(SYM, TAG) \
378 unsigned char *p = SDATA (SYMBOL_NAME (SYM)); \
379 TAG = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; \
382 #define OTF_TAG_STR(TAG, P) \
384 (P)[0] = (char) (TAG >> 24); \
385 (P)[1] = (char) ((TAG >> 16) & 0xFF); \
386 (P)[2] = (char) ((TAG >> 8) & 0xFF); \
387 (P)[3] = (char) (TAG & 0xFF); \
391 static struct OpenTypeSpec
*
392 ftfont_get_open_type_spec (Lisp_Object otf_spec
)
394 struct OpenTypeSpec
*spec
= malloc (sizeof (struct OpenTypeSpec
));
400 spec
->script
= XCAR (otf_spec
);
401 if (! NILP (spec
->script
))
403 OTF_SYM_TAG (spec
->script
, spec
->script_tag
);
404 val
= assq_no_quit (spec
->script
, Votf_script_alist
);
405 if (CONSP (val
) && SYMBOLP (XCDR (val
)))
406 spec
->script
= XCDR (val
);
411 spec
->script_tag
= 0x44464C54; /* "DFLT" */
412 otf_spec
= XCDR (otf_spec
);
413 val
= XCAR (otf_spec
);
415 OTF_SYM_TAG (val
, spec
->langsys_tag
);
417 spec
->langsys_tag
= 0;
418 spec
->nfeatures
[0] = spec
->nfeatures
[1] = 0;
419 for (i
= 0; i
< 2; i
++)
423 otf_spec
= XCDR (otf_spec
);
426 val
= XCAR (otf_spec
);
430 spec
->features
[i
] = malloc (sizeof (int) * XINT (len
));
431 if (! spec
->features
[i
])
433 if (i
> 0 && spec
->features
[0])
434 free (spec
->features
[0]);
438 for (j
= 0, negative
= 0; CONSP (val
); val
= XCDR (val
))
440 if (NILP (XCAR (val
)))
446 OTF_SYM_TAG (XCAR (val
), tag
);
447 spec
->features
[i
][j
++] = negative
? tag
& 0x80000000 : tag
;
450 spec
->nfeatures
[i
] = j
;
455 static FcPattern
*ftfont_spec_pattern
P_ ((Lisp_Object
, int *, char *,
456 struct OpenTypeSpec
**));
459 ftfont_spec_pattern (spec
, fc_charset_idx
, otlayout
, otspec
)
463 struct OpenTypeSpec
**otspec
;
465 Lisp_Object tmp
, extra
;
466 FcPattern
*pattern
= NULL
;
467 FcCharSet
*charset
= NULL
;
468 FcLangSet
*langset
= NULL
;
472 Lisp_Object name
= Qnil
;
473 Lisp_Object script
= Qnil
;
474 Lisp_Object registry
;
476 if (! NILP (AREF (spec
, FONT_ADSTYLE_INDEX
))
477 && SBYTES (SYMBOL_NAME (AREF (spec
, FONT_ADSTYLE_INDEX
))) > 0)
478 /* Fontconfig doesn't support adstyle property. */
480 if ((n
= FONT_SLANT_NUMERIC (spec
)) >= 0
482 /* Fontconfig doesn't support reverse-italic/obligue. */
485 if (INTEGERP (AREF (spec
, FONT_DPI_INDEX
)))
486 dpi
= XINT (AREF (spec
, FONT_DPI_INDEX
));
487 if (INTEGERP (AREF (spec
, FONT_AVGWIDTH_INDEX
))
488 && XINT (AREF (spec
, FONT_AVGWIDTH_INDEX
)) == 0)
491 registry
= AREF (spec
, FONT_REGISTRY_INDEX
);
493 || EQ (registry
, Qiso10646_1
)
494 || EQ (registry
, Qunicode_bmp
)
495 || EQ (registry
, Qunicode_sip
))
496 *fc_charset_idx
= -1;
499 *fc_charset_idx
= ftfont_get_charset (registry
);
500 if (*fc_charset_idx
< 0)
502 charset
= fc_charset_table
[*fc_charset_idx
].fc_charset
;
506 for (extra
= AREF (spec
, FONT_EXTRA_INDEX
);
507 CONSP (extra
); extra
= XCDR (extra
))
509 Lisp_Object key
, val
;
511 key
= XCAR (XCAR (extra
)), val
= XCDR (XCAR (extra
));
514 else if (EQ (key
, QCfc_unknown_spec
))
516 else if (EQ (key
, QClang
))
518 langset
= FcLangSetCreate ();
523 if (! FcLangSetAdd (langset
, SYMBOL_FcChar8 (val
)))
527 for (; CONSP (val
); val
= XCDR (val
))
528 if (SYMBOLP (XCAR (val
))
529 && ! FcLangSetAdd (langset
, SYMBOL_FcChar8 (XCAR (val
))))
532 else if (EQ (key
, QCname
))
534 else if (EQ (key
, QCotf
))
536 *otspec
= ftfont_get_open_type_spec (val
);
539 strcat (otlayout
, "otlayout:");
540 OTF_TAG_STR ((*otspec
)->script_tag
, otlayout
+ 9);
541 script
= (*otspec
)->script
;
543 else if (EQ (key
, QCscript
))
545 else if (EQ (key
, QCscalable
))
546 scalable
= ! NILP (val
);
549 if (! NILP (script
) && ! charset
)
551 Lisp_Object chars
= assq_no_quit (script
, Vscript_representative_chars
);
555 charset
= FcCharSetCreate ();
558 for (chars
= XCDR (chars
); CONSP (chars
); chars
= XCDR (chars
))
559 if (CHARACTERP (XCAR (chars
))
560 && ! FcCharSetAddChar (charset
, XUINT (XCAR (chars
))))
565 pattern
= NILP (name
) ? FcPatternCreate () : FcNameParse (SDATA (name
));
568 FcPatternDel (pattern
, FC_SIZE
);
569 FcPatternDel (pattern
, FC_PIXEL_SIZE
);
570 FcPatternDel (pattern
, FC_FOUNDRY
);
571 FcPatternDel (pattern
, FC_FAMILY
);
572 tmp
= AREF (spec
, FONT_FOUNDRY_INDEX
);
574 && ! FcPatternAddString (pattern
, FC_FOUNDRY
, SYMBOL_FcChar8 (tmp
)))
576 tmp
= AREF (spec
, FONT_FAMILY_INDEX
);
578 && ! FcPatternAddString (pattern
, FC_FAMILY
, SYMBOL_FcChar8 (tmp
)))
581 && ! FcPatternAddCharSet (pattern
, FC_CHARSET
, charset
))
584 && ! FcPatternAddLangSet (pattern
, FC_LANG
, langset
))
587 && ! FcPatternAddDouble (pattern
, FC_DPI
, dpi
))
590 && ! FcPatternAddBool (pattern
, FC_SCALABLE
, scalable
? FcTrue
: FcFalse
))
595 /* We come here because of unexpected error in fontconfig API call
596 (usually insufficient memory). */
599 FcPatternDestroy (pattern
);
604 if ((*otspec
)->nfeatures
[0] > 0)
605 free ((*otspec
)->features
[0]);
606 if ((*otspec
)->nfeatures
[1] > 0)
607 free ((*otspec
)->features
[1]);
613 if (langset
) FcLangSetDestroy (langset
);
614 if (charset
&& *fc_charset_idx
< 0) FcCharSetDestroy (charset
);
619 ftfont_list (frame
, spec
)
620 Lisp_Object frame
, spec
;
622 Lisp_Object val
= Qnil
, registry
, family
;
625 FcFontSet
*fontset
= NULL
;
626 FcObjectSet
*objset
= NULL
;
628 char otlayout
[15]; /* For "otlayout:XXXX" */
629 struct OpenTypeSpec
*otspec
= NULL
;
632 if (! fc_initialized
)
638 pattern
= ftfont_spec_pattern (spec
, &fc_charset_idx
, otlayout
, &otspec
);
641 if (INTEGERP (AREF (spec
, FONT_SPACING_INDEX
)))
642 spacing
= XINT (AREF (spec
, FONT_SPACING_INDEX
));
643 registry
= AREF (spec
, FONT_REGISTRY_INDEX
);
644 family
= AREF (spec
, FONT_FAMILY_INDEX
);
647 Lisp_Object resolved
;
649 resolved
= ftfont_resolve_generic_family (family
);
650 if (! NILP (resolved
))
652 FcPatternDel (pattern
, FC_FAMILY
);
653 if (! FcPatternAddString (pattern
, FC_FAMILY
,
654 SYMBOL_FcChar8 (resolved
)))
659 objset
= FcObjectSetBuild (FC_FOUNDRY
, FC_FAMILY
, FC_WEIGHT
, FC_SLANT
,
660 FC_WIDTH
, FC_PIXEL_SIZE
, FC_SPACING
, FC_SCALABLE
,
664 #endif /* FC_CAPABILITY */
669 fontset
= FcFontList (NULL
, pattern
, objset
);
672 for (i
= 0; i
< fontset
->nfont
; i
++)
680 if ((FcPatternGetInteger (fontset
->fonts
[i
], FC_SPACING
, 0, &this)
691 if (FcPatternGetString (fontset
->fonts
[i
], FC_CAPABILITY
, 0,
692 &this) != FcResultMatch
693 || ! strstr ((char *) this, otlayout
))
696 #endif /* FC_CAPABILITY */
703 if (FcPatternGetString (fontset
->fonts
[i
], FC_FILE
, 0, &file
)
706 otf
= OTF_open ((char *) file
);
709 if (OTF_check_features (otf
, 1,
710 otspec
->script_tag
, otspec
->langsys_tag
,
712 otspec
->nfeatures
[0]) != 1
713 || OTF_check_features (otf
, 0,
714 otspec
->script_tag
, otspec
->langsys_tag
,
716 otspec
->nfeatures
[1]) != 1)
719 #endif /* HAVE_LIBOTF */
720 entity
= ftfont_pattern_entity (fontset
->fonts
[i
], registry
,
723 val
= Fcons (entity
, val
);
725 font_add_log ("ftfont-list", spec
, val
);
729 /* We come here because of unexpected error in fontconfig API call
730 (usually insufficient memory). */
734 if (objset
) FcObjectSetDestroy (objset
);
735 if (fontset
) FcFontSetDestroy (fontset
);
736 if (pattern
) FcPatternDestroy (pattern
);
741 ftfont_match (frame
, spec
)
742 Lisp_Object frame
, spec
;
745 FcPattern
*pattern
, *match
= NULL
;
747 char otlayout
[15]; /* For "otlayout:XXXX" */
748 struct OpenTypeSpec
*otspec
= NULL
;
751 if (! fc_initialized
)
757 pattern
= ftfont_spec_pattern (spec
, &fc_charset_idx
, otlayout
, &otspec
);
761 if (INTEGERP (AREF (spec
, FONT_SIZE_INDEX
)))
765 value
.type
= FcTypeDouble
;
766 value
.u
.d
= XINT (AREF (spec
, FONT_SIZE_INDEX
));
767 FcPatternAdd (pattern
, FC_PIXEL_SIZE
, value
, FcFalse
);
769 if (FcConfigSubstitute (NULL
, pattern
, FcMatchPattern
) == FcTrue
)
771 FcDefaultSubstitute (pattern
);
772 match
= FcFontMatch (NULL
, pattern
, &result
);
775 entity
= ftfont_pattern_entity (match
, Qunicode_bmp
, fc_charset_idx
);
776 FcPatternDestroy (match
);
777 if (! NILP (AREF (spec
, FONT_FAMILY_INDEX
))
778 && NILP (assq_no_quit (AREF (spec
, FONT_FAMILY_INDEX
),
779 ftfont_generic_family_list
))
780 && NILP (Fstring_equal (AREF (spec
, FONT_FAMILY_INDEX
),
781 AREF (entity
, FONT_FAMILY_INDEX
))))
785 FcPatternDestroy (pattern
);
787 font_add_log ("ftfont-match", spec
, entity
);
792 ftfont_list_family (frame
)
796 FcPattern
*pattern
= NULL
;
797 FcFontSet
*fontset
= NULL
;
798 FcObjectSet
*objset
= NULL
;
801 if (! fc_initialized
)
807 pattern
= FcPatternCreate ();
810 objset
= FcObjectSetBuild (FC_FAMILY
, NULL
);
813 fontset
= FcFontList (NULL
, pattern
, objset
);
818 for (i
= 0; i
< fontset
->nfont
; i
++)
820 FcPattern
*pat
= fontset
->fonts
[i
];
823 if (FcPatternGetString (pat
, FC_FAMILY
, 0, &str
) == FcResultMatch
)
824 list
= Fcons (intern ((char *) str
), list
);
828 if (objset
) FcObjectSetDestroy (objset
);
829 if (fontset
) FcFontSetDestroy (fontset
);
830 if (pattern
) FcPatternDestroy (pattern
);
837 ftfont_open (f
, entity
, pixel_size
)
842 struct ftfont_info
*ftfont_info
;
847 Lisp_Object val
, filename
, cache
, font_object
;
856 val
= assq_no_quit (QCfont_entity
, AREF (entity
, FONT_EXTRA_INDEX
));
860 filename
= XCAR (val
);
861 fc_charset_idx
= XINT (XCDR (val
));
862 cache
= ftfont_lookup_cache (filename
);
865 filename
= XCAR (cache
);
867 ft_face
= XSAVE_VALUE (val
)->pointer
;
868 if (XSAVE_VALUE (val
)->integer
> 0)
870 /* FT_Face in this cache is already used by the different size. */
871 if (FT_New_Size (ft_face
, &ft_size
) != 0)
873 if (FT_Activate_Size (ft_size
) != 0)
875 FT_Done_Size (ft_size
);
879 XSAVE_VALUE (val
)->integer
++;
880 size
= XINT (AREF (entity
, FONT_SIZE_INDEX
));
883 if (FT_Set_Pixel_Sizes (ft_face
, size
, size
) != 0)
885 if (XSAVE_VALUE (val
)->integer
== 0)
886 FT_Done_Face (ft_face
);
890 font_object
= font_make_object (VECSIZE (struct ftfont_info
));
891 ASET (font_object
, FONT_TYPE_INDEX
, Qfreetype
);
892 for (i
= 1;i
< FONT_ENTITY_MAX
; i
++)
893 ASET (font_object
, i
, AREF (entity
, i
));
894 ASET (font_object
, FONT_SIZE_INDEX
, make_number (size
));
895 len
= font_unparse_xlfd (entity
, size
, name
, 256);
897 ASET (font_object
, FONT_NAME_INDEX
, make_unibyte_string (name
, len
));
898 len
= font_unparse_fcname (entity
, size
, name
, 256);
900 ASET (font_object
, FONT_FULLNAME_INDEX
, make_unibyte_string (name
, len
));
902 ASET (font_object
, FONT_FULLNAME_INDEX
,
903 AREF (font_object
, FONT_NAME_INDEX
));
904 ASET (font_object
, FONT_FILE_INDEX
, filename
);
905 ASET (font_object
, FONT_FORMAT_INDEX
, ftfont_font_format (pattern
));
906 font
= XFONT_OBJECT (font_object
);
907 ftfont_info
= (struct ftfont_info
*) font
;
908 ftfont_info
->ft_size
= ft_face
->size
;
909 ftfont_info
->fc_charset_idx
= fc_charset_idx
;
911 ftfont_info
->maybe_otf
= ft_face
->face_flags
& FT_FACE_FLAG_SFNT
;
912 ftfont_info
->otf
= NULL
;
913 #endif /* HAVE_LIBOTF */
914 font
->pixel_size
= size
;
915 font
->driver
= &ftfont_driver
;
916 font
->encoding_charset
= font
->repertory_charset
= -1;
918 upEM
= ft_face
->units_per_EM
;
919 scalable
= (INTEGERP (AREF (entity
, FONT_AVGWIDTH_INDEX
))
920 && XINT (AREF (entity
, FONT_AVGWIDTH_INDEX
)) == 0);
923 font
->ascent
= ft_face
->ascender
* size
/ upEM
;
924 font
->descent
= - ft_face
->descender
* size
/ upEM
;
925 font
->height
= ft_face
->height
* size
/ upEM
;
929 font
->ascent
= ft_face
->size
->metrics
.ascender
>> 6;
930 font
->descent
= - ft_face
->size
->metrics
.descender
>> 6;
931 font
->height
= ft_face
->size
->metrics
.height
>> 6;
933 if (INTEGERP (AREF (entity
, FONT_SPACING_INDEX
)))
934 spacing
= XINT (AREF (entity
, FONT_SPACING_INDEX
));
936 spacing
= FC_PROPORTIONAL
;
937 if (spacing
!= FC_PROPORTIONAL
)
938 font
->min_width
= font
->average_width
= font
->space_width
939 = (scalable
? ft_face
->max_advance_width
* size
/ upEM
940 : ft_face
->size
->metrics
.max_advance
>> 6);
945 font
->min_width
= font
->average_width
= font
->space_width
= 0;
946 for (i
= 32, n
= 0; i
< 127; i
++)
947 if (FT_Load_Char (ft_face
, i
, FT_LOAD_DEFAULT
) != 0)
949 int this_width
= ft_face
->glyph
->metrics
.horiAdvance
>> 6;
952 && (! font
->min_width
|| font
->min_width
> this_width
))
953 font
->min_width
= this_width
;
955 font
->space_width
= this_width
;
956 font
->average_width
+= this_width
;
960 font
->average_width
/= n
;
963 font
->baseline_offset
= 0;
964 font
->relative_compose
= 0;
965 font
->default_ascent
= 0;
966 font
->vertical_centering
= 0;
969 font
->underline_position
= -ft_face
->underline_position
* size
/ upEM
;
970 font
->underline_thickness
= -ft_face
->underline_thickness
* size
/ upEM
;
974 font
->underline_position
= -1;
975 font
->underline_thickness
= 0;
982 ftfont_close (f
, font
)
986 struct ftfont_info
*ftfont_info
= (struct ftfont_info
*) font
;
987 Lisp_Object val
, cache
;
989 cache
= ftfont_lookup_cache (font
->props
[FONT_FILE_INDEX
]);
991 (XSAVE_VALUE (val
)->integer
)--;
992 if (XSAVE_VALUE (val
)->integer
== 0)
994 FT_Face ft_face
= XSAVE_VALUE (val
)->pointer
;
996 FT_Done_Face (ft_face
);
998 if (ftfont_info
->otf
)
999 OTF_close (ftfont_info
->otf
);
1001 XSAVE_VALUE (val
)->pointer
= NULL
;
1004 FT_Done_Size (ftfont_info
->ft_size
);
1008 ftfont_has_char (entity
, c
)
1014 struct charset
*charset
;
1016 val
= assq_no_quit (QCfont_entity
, AREF (entity
, FONT_EXTRA_INDEX
));
1017 fc_charset_idx
= XINT (XCDR (XCDR (val
)));
1018 if (fc_charset_idx
< 0)
1020 charset
= CHARSET_FROM_ID (fc_charset_table
[fc_charset_idx
].charset_id
);
1021 return (ENCODE_CHAR (charset
, c
) != CHARSET_INVALID_CODE (charset
));
1025 ftfont_encode_char (font
, c
)
1029 struct ftfont_info
*ftfont_info
= (struct ftfont_info
*) font
;
1030 FT_Face ft_face
= ftfont_info
->ft_size
->face
;
1031 FT_ULong charcode
= c
;
1032 FT_UInt code
= FT_Get_Char_Index (ft_face
, charcode
);
1034 return (code
> 0 ? code
: FONT_INVALID_CODE
);
1038 ftfont_text_extents (font
, code
, nglyphs
, metrics
)
1042 struct font_metrics
*metrics
;
1044 struct ftfont_info
*ftfont_info
= (struct ftfont_info
*) font
;
1045 FT_Face ft_face
= ftfont_info
->ft_size
->face
;
1049 if (ftfont_info
->ft_size
!= ft_face
->size
)
1050 FT_Activate_Size (ftfont_info
->ft_size
);
1052 bzero (metrics
, sizeof (struct font_metrics
));
1053 for (i
= 0; i
< nglyphs
; i
++)
1055 if (FT_Load_Glyph (ft_face
, code
[i
], FT_LOAD_DEFAULT
) == 0)
1057 FT_Glyph_Metrics
*m
= &ft_face
->glyph
->metrics
;
1061 if (metrics
->lbearing
> width
+ (m
->horiBearingX
>> 6))
1062 metrics
->lbearing
= width
+ (m
->horiBearingX
>> 6);
1063 if (metrics
->rbearing
1064 < width
+ ((m
->horiBearingX
+ m
->width
) >> 6))
1066 = width
+ ((m
->horiBearingX
+ m
->width
) >> 6);
1067 if (metrics
->ascent
< (m
->horiBearingY
>> 6))
1068 metrics
->ascent
= m
->horiBearingY
>> 6;
1069 if (metrics
->descent
> ((m
->horiBearingY
+ m
->height
) >> 6))
1070 metrics
->descent
= (m
->horiBearingY
+ m
->height
) >> 6;
1072 width
+= m
->horiAdvance
>> 6;
1076 width
+= font
->space_width
;
1080 metrics
->width
= width
;
1086 ftfont_get_bitmap (font
, code
, bitmap
, bits_per_pixel
)
1089 struct font_bitmap
*bitmap
;
1092 struct ftfont_info
*ftfont_info
= (struct ftfont_info
*) font
;
1093 FT_Face ft_face
= ftfont_info
->ft_size
->face
;
1094 FT_Int32 load_flags
= FT_LOAD_RENDER
;
1096 if (ftfont_info
->ft_size
!= ft_face
->size
)
1097 FT_Activate_Size (ftfont_info
->ft_size
);
1098 if (bits_per_pixel
== 1)
1100 #ifdef FT_LOAD_TARGET_MONO
1101 load_flags
|= FT_LOAD_TARGET_MONO
;
1103 load_flags
|= FT_LOAD_MONOCHROME
;
1106 else if (bits_per_pixel
!= 8)
1107 /* We don't support such a rendering. */
1110 if (FT_Load_Glyph (ft_face
, code
, load_flags
) != 0)
1112 bitmap
->bits_per_pixel
1113 = (ft_face
->glyph
->bitmap
.pixel_mode
== FT_PIXEL_MODE_MONO
? 1
1114 : ft_face
->glyph
->bitmap
.pixel_mode
== FT_PIXEL_MODE_GRAY
? 8
1115 : ft_face
->glyph
->bitmap
.pixel_mode
== FT_PIXEL_MODE_LCD
? 8
1116 : ft_face
->glyph
->bitmap
.pixel_mode
== FT_PIXEL_MODE_LCD_V
? 8
1118 if (bitmap
->bits_per_pixel
< 0)
1119 /* We don't suport that kind of pixel mode. */
1121 bitmap
->rows
= ft_face
->glyph
->bitmap
.rows
;
1122 bitmap
->width
= ft_face
->glyph
->bitmap
.width
;
1123 bitmap
->pitch
= ft_face
->glyph
->bitmap
.pitch
;
1124 bitmap
->buffer
= ft_face
->glyph
->bitmap
.buffer
;
1125 bitmap
->left
= ft_face
->glyph
->bitmap_left
;
1126 bitmap
->top
= ft_face
->glyph
->bitmap_top
;
1127 bitmap
->advance
= ft_face
->glyph
->metrics
.horiAdvance
>> 6;
1128 bitmap
->extra
= NULL
;
1134 ftfont_anchor_point (font
, code
, index
, x
, y
)
1140 struct ftfont_info
*ftfont_info
= (struct ftfont_info
*) font
;
1141 FT_Face ft_face
= ftfont_info
->ft_size
->face
;
1143 if (ftfont_info
->ft_size
!= ft_face
->size
)
1144 FT_Activate_Size (ftfont_info
->ft_size
);
1145 if (FT_Load_Glyph (ft_face
, code
, FT_LOAD_DEFAULT
) != 0)
1147 if (ft_face
->glyph
->format
!= FT_GLYPH_FORMAT_OUTLINE
)
1149 if (index
>= ft_face
->glyph
->outline
.n_points
)
1151 *x
= ft_face
->glyph
->outline
.points
[index
].x
;
1152 *y
= ft_face
->glyph
->outline
.points
[index
].y
;
1157 #ifdef HAVE_M17N_FLT
1168 ftfont_get_glyph_id (font
, gstring
, from
, to
)
1170 MFLTGlyphString
*gstring
;
1173 struct MFLTFontFT
*flt_font_ft
= (struct MFLTFontFT
*) font
;
1174 FT_Face ft_face
= flt_font_ft
->ft_face
;
1177 for (g
= gstring
->glyphs
+ from
; from
< to
; g
++, from
++)
1180 FT_UInt code
= FT_Get_Char_Index (ft_face
, g
->code
);
1182 g
->code
= code
> 0 ? code
: FONT_INVALID_CODE
;
1189 ftfont_get_metrics (font
, gstring
, from
, to
)
1191 MFLTGlyphString
*gstring
;
1194 struct MFLTFontFT
*flt_font_ft
= (struct MFLTFontFT
*) font
;
1195 FT_Face ft_face
= flt_font_ft
->ft_face
;
1198 for (g
= gstring
->glyphs
+ from
; from
< to
; g
++, from
++)
1201 if (g
->code
!= FONT_INVALID_CODE
)
1203 FT_Glyph_Metrics
*m
;
1205 if (FT_Load_Glyph (ft_face
, g
->code
, FT_LOAD_DEFAULT
) != 0)
1207 m
= &ft_face
->glyph
->metrics
;
1209 g
->lbearing
= m
->horiBearingX
;
1210 g
->rbearing
= m
->horiBearingX
+ m
->width
;
1211 g
->ascent
= m
->horiBearingY
;
1212 g
->descent
= m
->height
- m
->horiBearingY
;
1213 g
->xadv
= m
->horiAdvance
;
1218 g
->rbearing
= g
->xadv
= flt_font_ft
->font
->space_width
<< 6;
1219 g
->ascent
= flt_font_ft
->font
->ascent
<< 6;
1220 g
->descent
= flt_font_ft
->font
->descent
<< 6;
1229 ftfont_check_otf (MFLTFont
*font
, MFLTOtfSpec
*spec
)
1231 struct MFLTFontFT
*flt_font_ft
= (struct MFLTFontFT
*) font
;
1232 OTF
*otf
= flt_font_ft
->otf
;
1236 for (i
= 0; i
< 2; i
++)
1238 if (! spec
->features
[i
])
1240 for (n
= 0; spec
->features
[i
][n
]; n
++);
1241 tags
= alloca (sizeof (OTF_Tag
) * n
);
1242 for (n
= 0, negative
= 0; spec
->features
[i
][n
]; n
++)
1244 if (spec
->features
[i
][n
] == 0xFFFFFFFF)
1247 tags
[n
- 1] = spec
->features
[i
][n
] | 0x80000000;
1249 tags
[n
] = spec
->features
[i
][n
];
1251 if (n
- negative
> 0
1252 && OTF_check_features (otf
, i
== 0, spec
->script
, spec
->langsys
,
1253 tags
, n
- negative
) != 1)
1259 #define DEVICE_DELTA(table, size) \
1260 (((size) >= (table).StartSize && (size) <= (table).EndSize) \
1261 ? (table).DeltaValue[(size) - (table).StartSize] << 6 \
1265 adjust_anchor (FT_Face ft_face
, OTF_Anchor
*anchor
,
1266 unsigned code
, int x_ppem
, int y_ppem
, int *x
, int *y
)
1268 if (anchor
->AnchorFormat
== 2)
1270 FT_Outline
*outline
;
1271 int ap
= anchor
->f
.f1
.AnchorPoint
;
1273 FT_Load_Glyph (ft_face
, (FT_UInt
) code
, FT_LOAD_MONOCHROME
);
1274 outline
= &ft_face
->glyph
->outline
;
1275 if (ap
< outline
->n_points
)
1277 *x
= outline
->points
[ap
].x
<< 6;
1278 *y
= outline
->points
[ap
].y
<< 6;
1281 else if (anchor
->AnchorFormat
== 3)
1283 if (anchor
->f
.f2
.XDeviceTable
.offset
)
1284 *x
+= DEVICE_DELTA (anchor
->f
.f2
.XDeviceTable
, x_ppem
);
1285 if (anchor
->f
.f2
.YDeviceTable
.offset
)
1286 *y
+= DEVICE_DELTA (anchor
->f
.f2
.YDeviceTable
, y_ppem
);
1290 static OTF_GlyphString otf_gstring
;
1293 ftfont_drive_otf (font
, spec
, in
, from
, to
, out
, adjustment
)
1296 MFLTGlyphString
*in
;
1298 MFLTGlyphString
*out
;
1299 MFLTGlyphAdjustment
*adjustment
;
1301 struct MFLTFontFT
*flt_font_ft
= (struct MFLTFontFT
*) font
;
1302 FT_Face ft_face
= flt_font_ft
->ft_face
;
1303 OTF
*otf
= flt_font_ft
->otf
;
1304 int len
= to
- from
;
1307 char script
[5], *langsys
= NULL
;
1308 char *gsub_features
= NULL
, *gpos_features
= NULL
;
1312 OTF_tag_name (spec
->script
, script
);
1315 langsys
= alloca (5);
1316 OTF_tag_name (spec
->langsys
, langsys
);
1318 for (i
= 0; i
< 2; i
++)
1322 if (spec
->features
[i
] && spec
->features
[i
][1] != 0xFFFFFFFF)
1324 for (j
= 0; spec
->features
[i
][j
]; j
++);
1326 p
= gsub_features
= alloca (6 * j
);
1328 p
= gpos_features
= alloca (6 * j
);
1329 for (j
= 0; spec
->features
[i
][j
]; j
++)
1331 if (spec
->features
[i
][j
] == 0xFFFFFFFF)
1332 *p
++ = '*', *p
++ = ',';
1335 OTF_tag_name (spec
->features
[i
][j
], p
);
1344 if (otf_gstring
.size
== 0)
1346 otf_gstring
.glyphs
= (OTF_Glyph
*) malloc (sizeof (OTF_Glyph
) * len
);
1347 otf_gstring
.size
= len
;
1349 else if (otf_gstring
.size
< len
)
1351 otf_gstring
.glyphs
= (OTF_Glyph
*) realloc (otf_gstring
.glyphs
,
1352 sizeof (OTF_Glyph
) * len
);
1353 otf_gstring
.size
= len
;
1355 otf_gstring
.used
= len
;
1356 memset (otf_gstring
.glyphs
, 0, sizeof (OTF_Glyph
) * len
);
1357 for (i
= 0; i
< len
; i
++)
1359 otf_gstring
.glyphs
[i
].c
= in
->glyphs
[from
+ i
].c
;
1360 otf_gstring
.glyphs
[i
].glyph_id
= in
->glyphs
[from
+ i
].code
;
1363 OTF_drive_gdef (otf
, &otf_gstring
);
1368 if (OTF_drive_gsub (otf
, &otf_gstring
, script
, langsys
, gsub_features
)
1371 if (out
->allocated
< out
->used
+ otf_gstring
.used
)
1373 for (i
= 0, otfg
= otf_gstring
.glyphs
; i
< otf_gstring
.used
; )
1376 int min_from
, max_to
;
1379 g
= out
->glyphs
+ out
->used
;
1380 *g
= in
->glyphs
[from
+ otfg
->f
.index
.from
];
1381 if (g
->code
!= otfg
->glyph_id
)
1384 g
->code
= otfg
->glyph_id
;
1390 if (otfg
->f
.index
.from
< otfg
->f
.index
.to
)
1392 /* OTFG substitutes multiple glyphs in IN. */
1393 for (j
= from
+ otfg
->f
.index
.from
+ 1;
1394 j
<= from
+ otfg
->f
.index
.to
; j
++)
1396 if (min_from
> in
->glyphs
[j
].from
)
1397 min_from
= in
->glyphs
[j
].from
;
1398 if (max_to
< in
->glyphs
[j
].to
)
1399 max_to
= in
->glyphs
[j
].to
;
1404 for (i
++, otfg
++; (i
< otf_gstring
.used
1405 && otfg
->f
.index
.from
== otfg
[-1].f
.index
.from
);
1408 g
= out
->glyphs
+ out
->used
;
1409 *g
= in
->glyphs
[from
+ otfg
->f
.index
.to
];
1410 if (g
->code
!= otfg
->glyph_id
)
1413 g
->code
= otfg
->glyph_id
;
1422 if (out
->allocated
< out
->used
+ len
)
1424 for (i
= 0; i
< len
; i
++)
1425 out
->glyphs
[out
->used
++] = in
->glyphs
[from
+ i
];
1430 MFLTGlyph
*base
= NULL
, *mark
= NULL
, *g
;
1431 int x_ppem
, y_ppem
, x_scale
, y_scale
;
1433 if (OTF_drive_gpos (otf
, &otf_gstring
, script
, langsys
, gpos_features
)
1437 x_ppem
= ft_face
->size
->metrics
.x_ppem
;
1438 y_ppem
= ft_face
->size
->metrics
.y_ppem
;
1439 x_scale
= ft_face
->size
->metrics
.x_scale
;
1440 y_scale
= ft_face
->size
->metrics
.y_scale
;
1442 for (i
= 0, otfg
= otf_gstring
.glyphs
, g
= out
->glyphs
+ gidx
;
1443 i
< otf_gstring
.used
; i
++, otfg
++, g
++)
1447 if (! otfg
->glyph_id
)
1449 switch (otfg
->positioning_type
)
1453 case 1: /* Single */
1456 int format
= otfg
->f
.f1
.format
;
1458 if (format
& OTF_XPlacement
)
1460 = otfg
->f
.f1
.value
->XPlacement
* x_scale
/ 0x10000;
1461 if (format
& OTF_XPlaDevice
)
1463 += DEVICE_DELTA (otfg
->f
.f1
.value
->XPlaDevice
, x_ppem
);
1464 if (format
& OTF_YPlacement
)
1466 = - (otfg
->f
.f1
.value
->YPlacement
* y_scale
/ 0x10000);
1467 if (format
& OTF_YPlaDevice
)
1469 -= DEVICE_DELTA (otfg
->f
.f1
.value
->YPlaDevice
, y_ppem
);
1470 if (format
& OTF_XAdvance
)
1472 += otfg
->f
.f1
.value
->XAdvance
* x_scale
/ 0x10000;
1473 if (format
& OTF_XAdvDevice
)
1475 += DEVICE_DELTA (otfg
->f
.f1
.value
->XAdvDevice
, x_ppem
);
1476 if (format
& OTF_YAdvance
)
1478 += otfg
->f
.f1
.value
->YAdvance
* y_scale
/ 0x10000;
1479 if (format
& OTF_YAdvDevice
)
1481 += DEVICE_DELTA (otfg
->f
.f1
.value
->YAdvDevice
, y_ppem
);
1482 adjustment
[i
].set
= 1;
1485 case 3: /* Cursive */
1486 /* Not yet supported. */
1488 case 4: /* Mark-to-Base */
1489 case 5: /* Mark-to-Ligature */
1493 goto label_adjust_anchor
;
1494 default: /* i.e. case 6 Mark-to-Mark */
1499 label_adjust_anchor
:
1501 int base_x
, base_y
, mark_x
, mark_y
;
1502 int this_from
, this_to
;
1504 base_x
= otfg
->f
.f4
.base_anchor
->XCoordinate
* x_scale
/ 0x10000;
1505 base_y
= otfg
->f
.f4
.base_anchor
->YCoordinate
* y_scale
/ 0x10000;
1506 mark_x
= otfg
->f
.f4
.mark_anchor
->XCoordinate
* x_scale
/ 0x10000;
1507 mark_y
= otfg
->f
.f4
.mark_anchor
->YCoordinate
* y_scale
/ 0x10000;;
1509 if (otfg
->f
.f4
.base_anchor
->AnchorFormat
!= 1)
1510 adjust_anchor (ft_face
, otfg
->f
.f4
.base_anchor
,
1511 prev
->code
, x_ppem
, y_ppem
, &base_x
, &base_y
);
1512 if (otfg
->f
.f4
.mark_anchor
->AnchorFormat
!= 1)
1513 adjust_anchor (ft_face
, otfg
->f
.f4
.mark_anchor
, g
->code
,
1514 x_ppem
, y_ppem
, &mark_x
, &mark_y
);
1515 adjustment
[i
].xoff
= (base_x
- mark_x
);
1516 adjustment
[i
].yoff
= - (base_y
- mark_y
);
1517 adjustment
[i
].back
= (g
- prev
);
1518 adjustment
[i
].xadv
= 0;
1519 adjustment
[i
].advance_is_absolute
= 1;
1520 adjustment
[i
].set
= 1;
1521 this_from
= g
->from
;
1523 for (j
= 0; prev
+ j
< g
; j
++)
1525 if (this_from
> prev
[j
].from
)
1526 this_from
= prev
[j
].from
;
1527 if (this_to
< prev
[j
].to
)
1528 this_to
= prev
[j
].to
;
1530 for (; prev
<= g
; prev
++)
1532 prev
->from
= this_from
;
1537 if (otfg
->GlyphClass
== OTF_GlyphClass0
)
1539 else if (otfg
->GlyphClass
== OTF_GlyphClassMark
)
1548 if (out
->allocated
< out
->used
+ len
)
1550 font
->get_metrics (font
, in
, from
, to
);
1551 memcpy (out
->glyphs
+ out
->used
, in
->glyphs
+ from
,
1552 sizeof (MFLTGlyph
) * len
);
1557 static MFLTGlyphString gstring
;
1559 static int m17n_flt_initialized
;
1561 extern Lisp_Object QCfamily
;
1564 ftfont_shape_by_flt (lgstring
, font
, ft_face
, otf
)
1565 Lisp_Object lgstring
;
1570 EMACS_UINT len
= LGSTRING_LENGTH (lgstring
);
1572 struct MFLTFontFT flt_font_ft
;
1574 if (! m17n_flt_initialized
)
1577 m17n_flt_initialized
= 1;
1580 for (i
= 0; i
< len
; i
++)
1581 if (NILP (LGSTRING_GLYPH (lgstring
, i
)))
1585 if (gstring
.allocated
== 0)
1587 gstring
.allocated
= len
* 2;
1588 gstring
.glyph_size
= sizeof (MFLTGlyph
);
1589 gstring
.glyphs
= malloc (sizeof (MFLTGlyph
) * gstring
.allocated
);
1591 else if (gstring
.allocated
< len
* 2)
1593 gstring
.allocated
= len
* 2;
1594 gstring
.glyphs
= realloc (gstring
.glyphs
,
1595 sizeof (MFLTGlyph
) * gstring
.allocated
);
1597 for (i
= 0; i
< len
; i
++)
1598 gstring
.glyphs
[i
].c
= LGLYPH_CHAR (LGSTRING_GLYPH (lgstring
, i
));
1603 Lisp_Object family
= Ffont_get (LGSTRING_FONT (lgstring
), QCfamily
);
1606 flt_font_ft
.flt_font
.family
= Mnil
;
1608 flt_font_ft
.flt_font
.family
1609 = msymbol ((char *) SDATA (SYMBOL_NAME (family
)));
1611 flt_font_ft
.flt_font
.x_ppem
= ft_face
->size
->metrics
.x_ppem
;
1612 flt_font_ft
.flt_font
.y_ppem
= ft_face
->size
->metrics
.y_ppem
;
1613 flt_font_ft
.flt_font
.get_glyph_id
= ftfont_get_glyph_id
;
1614 flt_font_ft
.flt_font
.get_metrics
= ftfont_get_metrics
;
1615 flt_font_ft
.flt_font
.check_otf
= ftfont_check_otf
;
1616 flt_font_ft
.flt_font
.drive_otf
= ftfont_drive_otf
;
1617 flt_font_ft
.flt_font
.internal
= NULL
;
1618 flt_font_ft
.font
= font
;
1619 flt_font_ft
.ft_face
= ft_face
;
1620 flt_font_ft
.otf
= otf
;
1621 for (i
= 0; i
< 3; i
++)
1623 int result
= mflt_run (&gstring
, 0, len
, &flt_font_ft
.flt_font
, NULL
);
1626 gstring
.allocated
+= gstring
.allocated
;
1627 gstring
.glyphs
= realloc (gstring
.glyphs
,
1628 sizeof (MFLTGlyph
) * gstring
.allocated
);
1630 if (gstring
.used
> LGSTRING_LENGTH (lgstring
))
1632 for (i
= 0; i
< gstring
.used
; i
++)
1634 MFLTGlyph
*g
= gstring
.glyphs
+ i
;
1636 g
->from
= LGLYPH_FROM (LGSTRING_GLYPH (lgstring
, g
->from
));
1637 g
->to
= LGLYPH_TO (LGSTRING_GLYPH (lgstring
, g
->to
));
1640 for (i
= 0; i
< gstring
.used
; i
++)
1642 Lisp_Object lglyph
= LGSTRING_GLYPH (lgstring
, i
);
1643 MFLTGlyph
*g
= gstring
.glyphs
+ i
;
1647 lglyph
= Fmake_vector (make_number (LGLYPH_SIZE
), Qnil
);
1648 LGSTRING_SET_GLYPH (lgstring
, i
, lglyph
);
1650 LGLYPH_SET_FROM (lglyph
, g
->from
);
1651 LGLYPH_SET_TO (lglyph
, g
->to
);
1652 LGLYPH_SET_CHAR (lglyph
, g
->c
);
1653 LGLYPH_SET_CODE (lglyph
, g
->code
);
1654 LGLYPH_SET_WIDTH (lglyph
, g
->xadv
>> 6);
1655 LGLYPH_SET_LBEARING (lglyph
, g
->lbearing
>> 6);
1656 LGLYPH_SET_RBEARING (lglyph
, g
->rbearing
>> 6);
1657 LGLYPH_SET_ASCENT (lglyph
, g
->ascent
>> 6);
1658 LGLYPH_SET_DESCENT (lglyph
, g
->descent
>> 6);
1663 vec
= Fmake_vector (make_number (3), Qnil
);
1664 ASET (vec
, 0, make_number (g
->xoff
>> 6));
1665 ASET (vec
, 1, make_number (g
->yoff
>> 6));
1666 ASET (vec
, 2, make_number (g
->xadv
>> 6));
1667 LGLYPH_SET_ADJUSTMENT (lglyph
, vec
);
1670 return make_number (i
);
1674 ftfont_shape (lgstring
)
1675 Lisp_Object lgstring
;
1678 struct ftfont_info
*ftfont_info
;
1680 CHECK_FONT_GET_OBJECT (LGSTRING_FONT (lgstring
), font
);
1681 ftfont_info
= (struct ftfont_info
*) font
;
1682 if (! ftfont_info
->maybe_otf
)
1683 return make_number (0);
1684 if (! ftfont_info
->otf
)
1686 OTF
*otf
= OTF_open_ft_face (ftfont_info
->ft_size
->face
);
1688 if (! otf
|| OTF_get_table (otf
, "head") < 0)
1692 ftfont_info
->maybe_otf
= 0;
1693 return make_number (0);
1696 ftfont_info
->otf
= otf
;
1699 return ftfont_shape_by_flt (lgstring
, font
, ftfont_info
->ft_size
->face
,
1703 #endif /* HAVE_M17N_FLT */
1704 #endif /* HAVE_LIBOTF */
1707 ftfont_font_format (FcPattern
*pattern
)
1711 #ifdef FC_FONTFORMAT
1712 if (FcPatternGetString (pattern
, FC_FONTFORMAT
, 0, &str
) != FcResultMatch
)
1714 if (strcmp ((char *) str
, "TrueType") == 0)
1715 return intern ("truetype");
1716 if (strcmp ((char *) str
, "Type 1") == 0)
1717 return intern ("type1");
1718 if (strcmp ((char *) str
, "PCF") == 0)
1719 return intern ("pcf");
1720 if (strcmp ((char *) str
, "BDF") == 0)
1721 return intern ("bdf");
1722 #else /* not FC_FONTFORMAT */
1723 if (FcPatternGetString (pattern
, FC_FILE
, 0, &str
) != FcResultMatch
)
1725 if (strcasestr ((char *) str
, ".ttf") == 0)
1726 return intern ("truetype");
1727 if (strcasestr ((char *) str
, "pfb") == 0)
1728 return intern ("type1");
1729 if (strcasestr ((char *) str
, "pcf") == 0)
1730 return intern ("pcf");
1731 if (strcasestr ((char *) str
, "bdf") == 0)
1732 return intern ("bdf");
1733 #endif /* not FC_FONTFORMAT */
1734 return intern ("unknown");
1741 DEFSYM (Qfreetype
, "freetype");
1742 DEFSYM (Qmonospace
, "monospace");
1743 DEFSYM (Qsans_serif
, "sans-serif");
1744 DEFSYM (Qserif
, "serif");
1745 DEFSYM (Qmono
, "mono");
1746 DEFSYM (Qsans
, "sans");
1747 DEFSYM (Qsans__serif
, "sans serif");
1749 staticpro (&freetype_font_cache
);
1750 freetype_font_cache
= Fcons (Qt
, Qnil
);
1752 staticpro (&ftfont_generic_family_list
);
1753 ftfont_generic_family_list
1754 = Fcons (Fcons (Qmonospace
, Qt
),
1755 Fcons (Fcons (Qsans_serif
, Qt
),
1756 Fcons (Fcons (Qsans
, Qt
), Qnil
)));
1758 staticpro (&ft_face_cache
);
1759 ft_face_cache
= Qnil
;
1761 ftfont_driver
.type
= Qfreetype
;
1762 register_font_driver (&ftfont_driver
, NULL
);
1765 /* arch-tag: 7cfa432c-33a6-4988-83d2-a82ed8604aca
1766 (do not change this comment) */