1 /* ftfont.c -- FreeType font driver.
2 Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
3 Copyright (C) 2006, 2007, 2008, 2009
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"
35 #include "composite.h"
40 /* Symbolic type of this font-driver. */
41 Lisp_Object Qfreetype
;
43 /* Fontconfig's generic families and their aliases. */
44 static Lisp_Object Qmonospace
, Qsans_serif
, Qserif
, Qmono
, Qsans
, Qsans__serif
;
46 /* Special ADSTYLE properties to avoid fonts used for Latin characters. */
47 static Lisp_Object Qja
, Qko
;
49 /* Flag to tell if FcInit is already called or not. */
50 static int fc_initialized
;
52 /* Handle to a FreeType library instance. */
53 static FT_Library ft_library
;
55 /* Cache for FreeType fonts. */
56 static Lisp_Object freetype_font_cache
;
58 /* Cache for FT_Face and FcCharSet. */
59 static Lisp_Object ft_face_cache
;
61 /* The actual structure for FreeType font that can be casted to struct
68 /* The following four members must be here in this order to be
69 compatible with struct xftfont_info (in xftfont.c). */
70 int maybe_otf
; /* Flag to tell if this may be OTF or not. */
72 #endif /* HAVE_LIBOTF */
77 static Lisp_Object ftfont_pattern_entity
P_ ((FcPattern
*, Lisp_Object
));
79 static Lisp_Object ftfont_resolve_generic_family
P_ ((Lisp_Object
,
81 static Lisp_Object ftfont_lookup_cache
P_ ((Lisp_Object
, int));
83 Lisp_Object ftfont_font_format
P_ ((FcPattern
*, Lisp_Object
));
85 #define SYMBOL_FcChar8(SYM) (FcChar8 *) SDATA (SYMBOL_NAME (SYM))
91 /* characters to distinguish the charset from the others */
93 /* additional constraint by language */
96 FcCharSet
*fc_charset
;
97 } fc_charset_table
[] =
98 { { "iso8859-1", { } }, /* ftfont_get_latin1_charset handles it. */
99 { "iso8859-2", { 0x00A0, 0x010E }},
100 { "iso8859-3", { 0x00A0, 0x0108 }},
101 { "iso8859-4", { 0x00A0, 0x00AF, 0x0128, 0x0156, 0x02C7 }},
102 { "iso8859-5", { 0x00A0, 0x0401 }},
103 { "iso8859-6", { 0x00A0, 0x060C }},
104 { "iso8859-7", { 0x00A0, 0x0384 }},
105 { "iso8859-8", { 0x00A0, 0x05D0 }},
106 { "iso8859-9", { 0x00A0, 0x00A1, 0x00BC, 0x011E }},
107 { "iso8859-10", { 0x00A0, 0x00D0, 0x0128, 0x2015 }},
108 { "iso8859-11", { 0x00A0, 0x0E01 }},
109 { "iso8859-13", { 0x00A0, 0x201C }},
110 { "iso8859-14", { 0x00A0, 0x0174 }},
111 { "iso8859-15", { 0x00A0, 0x00A1, 0x00D0, 0x0152 }},
112 { "iso8859-16", { 0x00A0, 0x0218}},
113 { "gb2312.1980-0", { 0x4E13 }, "zh-cn"},
114 { "big5-0", { 0xF6B1 }, "zh-tw" },
115 { "jisx0208.1983-0", { 0x4E55 }, "ja"},
116 { "ksc5601.1985-0", { 0xAC00 }, "ko"},
117 { "cns11643.1992-1", { 0xFE32 }, "zh-tw"},
118 { "cns11643.1992-2", { 0x4E33, 0x7934 }},
119 { "cns11643.1992-3", { 0x201A9 }},
120 { "cns11643.1992-4", { 0x20057 }},
121 { "cns11643.1992-5", { 0x20000 }},
122 { "cns11643.1992-6", { 0x20003 }},
123 { "cns11643.1992-7", { 0x20055 }},
124 { "gbk-0", { 0x4E06 }, "zh-cn"},
125 { "jisx0212.1990-0", { 0x4E44 }},
126 { "jisx0213.2000-1", { 0xFA10 }, "ja"},
127 { "jisx0213.2000-2", { 0xFA49 }},
128 { "jisx0213.2004-1", { 0x20B9F }},
129 { "viscii1.1-1", { 0x1EA0, 0x1EAE, 0x1ED2 }, "vi"},
130 { "tis620.2529-1", { 0x0E01 }, "th"},
131 { "windows-1251", { 0x0401, 0x0490 }, "ru"},
132 { "koi8-r", { 0x0401, 0x2219 }, "ru"},
133 { "mulelao-1", { 0x0E81 }, "lo"},
134 { "unicode-sip", { 0x20000 }},
138 /* Return a FcCharSet for iso8859-1 from fc_charset_table[0]. If the
139 charset is not yet ready, create it. */
141 ftfont_get_latin1_charset ()
146 if (fc_charset_table
[0].fc_charset
)
147 return fc_charset_table
[0].fc_charset
;
148 cs
= FcCharSetCreate ();
151 for (c
= 33; c
<= 0xFF; c
++)
153 FcCharSetAddChar (cs
, c
);
157 fc_charset_table
[0].fc_charset
= cs
;
161 extern Lisp_Object Qc
, Qm
, Qp
, Qd
;
163 /* Dirty hack for handing ADSTYLE property.
165 Fontconfig (actually the underlying FreeType) gives such ADSTYLE
166 font property of PCF/BDF fonts in FC_STYLE. And, "Bold",
167 "Oblique", "Italic", or any non-normal SWIDTH property names
168 (e.g. SemiCondensed) are appended. In addition, if there's no
169 ADSTYLE property nor non-normal WEIGHT/SLANT/SWIDTH properties,
170 "Regular" is used for FC_STYLE (see the function
171 pcf_interpret_style in src/pcf/pcfread.c of FreeType).
173 Unfortunately this behavior is not documented, so the following
174 code may fail if FreeType changes the behavior in the future. */
177 get_adstyle_property (FcPattern
*p
)
182 if (FcPatternGetString (p
, FC_STYLE
, 0, (FcChar8
**) &str
) != FcResultMatch
)
184 for (end
= str
; *end
&& *end
!= ' '; end
++);
187 char *p
= alloca (end
- str
+ 1);
188 memcpy (p
, str
, end
- str
);
190 end
= p
+ (end
- str
);
193 if (xstrcasecmp (str
, "Regular") == 0
194 || xstrcasecmp (str
, "Bold") == 0
195 || xstrcasecmp (str
, "Oblique") == 0
196 || xstrcasecmp (str
, "Italic") == 0)
198 adstyle
= font_intern_prop (str
, end
- str
, 0);
199 if (font_style_to_value (FONT_WIDTH_INDEX
, adstyle
, 0) >= 0)
205 ftfont_pattern_entity (p
, extra
)
216 if (FcPatternGetString (p
, FC_FILE
, 0, (FcChar8
**) &file
) != FcResultMatch
)
218 if (FcPatternGetInteger (p
, FC_INDEX
, 0, &index
) != FcResultMatch
)
221 entity
= font_make_entity ();
223 ASET (entity
, FONT_TYPE_INDEX
, Qfreetype
);
224 ASET (entity
, FONT_REGISTRY_INDEX
, Qiso10646_1
);
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
)
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
));
236 if (FcPatternGetInteger (p
, FC_SLANT
, 0, &numeric
) == FcResultMatch
)
239 FONT_SET_STYLE (entity
, FONT_SLANT_INDEX
, make_number (numeric
));
241 if (FcPatternGetInteger (p
, FC_WIDTH
, 0, &numeric
) == FcResultMatch
)
243 FONT_SET_STYLE (entity
, FONT_WIDTH_INDEX
, make_number (numeric
));
245 if (FcPatternGetDouble (p
, FC_PIXEL_SIZE
, 0, &dbl
) == FcResultMatch
)
249 ASET (entity
, FONT_SIZE_INDEX
, make_number (dbl
));
250 /* As this font has PIXEL_SIZE property, parhaps this is a BDF
252 ASET (entity
, FONT_ADSTYLE_INDEX
, get_adstyle_property (p
));
255 ASET (entity
, FONT_SIZE_INDEX
, make_number (0));
256 if (FcPatternGetInteger (p
, FC_SPACING
, 0, &numeric
) == FcResultMatch
)
257 ASET (entity
, FONT_SPACING_INDEX
, make_number (numeric
));
258 if (FcPatternGetDouble (p
, FC_DPI
, 0, &dbl
) == FcResultMatch
)
261 ASET (entity
, FONT_DPI_INDEX
, make_number (dpi
));
263 if (FcPatternGetBool (p
, FC_SCALABLE
, 0, &b
) == FcResultMatch
265 ASET (entity
, FONT_AVGWIDTH_INDEX
, make_number (0));
267 ASET (entity
, FONT_EXTRA_INDEX
, Fcopy_sequence (extra
));
268 font_put_extra (entity
, QCfont_entity
,
269 Fcons (make_unibyte_string ((char *) file
,
270 strlen ((char *) file
)),
271 make_number (index
)));
276 static Lisp_Object ftfont_generic_family_list
;
279 ftfont_resolve_generic_family (family
, pattern
)
288 family
= Fintern (Fdowncase (SYMBOL_NAME (family
)), Qnil
);
289 if (EQ (family
, Qmono
))
291 else if (EQ (family
, Qsans
) || EQ (family
, Qsans__serif
))
292 family
= Qsans_serif
;
293 slot
= assq_no_quit (family
, ftfont_generic_family_list
);
296 if (! EQ (XCDR (slot
), Qt
))
298 pattern
= FcPatternDuplicate (pattern
);
301 FcPatternDel (pattern
, FC_FOUNDRY
);
302 FcPatternDel (pattern
, FC_FAMILY
);
303 FcPatternAddString (pattern
, FC_FAMILY
, SYMBOL_FcChar8 (family
));
304 if (FcPatternGetLangSet (pattern
, FC_LANG
, 0, &langset
) != FcResultMatch
)
306 /* This is to avoid the effect of locale. */
307 langset
= FcLangSetCreate ();
308 FcLangSetAdd (langset
, "en");
309 FcPatternAddLangSet (pattern
, FC_LANG
, langset
);
310 FcLangSetDestroy (langset
);
312 FcConfigSubstitute (NULL
, pattern
, FcMatchPattern
);
313 FcDefaultSubstitute (pattern
);
314 match
= FcFontMatch (NULL
, pattern
, &result
);
319 if (FcPatternGetString (match
, FC_FAMILY
, 0, &fam
) == FcResultMatch
)
320 family
= intern ((char *) fam
);
324 XSETCDR (slot
, family
);
325 if (match
) FcPatternDestroy (match
);
327 if (pattern
) FcPatternDestroy (pattern
);
331 struct ftfont_cache_data
334 FcCharSet
*fc_charset
;
338 ftfont_lookup_cache (key
, for_face
)
342 Lisp_Object cache
, val
, entity
;
343 struct ftfont_cache_data
*cache_data
;
345 if (FONT_ENTITY_P (key
))
348 val
= assq_no_quit (QCfont_entity
, AREF (entity
, FONT_EXTRA_INDEX
));
349 xassert (CONSP (val
));
355 cache
= assoc_no_quit (key
, ft_face_cache
);
358 cache_data
= xmalloc (sizeof (struct ftfont_cache_data
));
359 cache_data
->ft_face
= NULL
;
360 cache_data
->fc_charset
= NULL
;
361 val
= make_save_value (NULL
, 0);
362 XSAVE_VALUE (val
)->integer
= 0;
363 XSAVE_VALUE (val
)->pointer
= cache_data
;
364 cache
= Fcons (key
, val
);
365 ft_face_cache
= Fcons (cache
, ft_face_cache
);
370 cache_data
= XSAVE_VALUE (val
)->pointer
;
372 if (for_face
? ! cache_data
->ft_face
: ! cache_data
->fc_charset
)
374 char *filename
= (char *) SDATA (XCAR (key
));
375 int index
= XINT (XCDR (key
));
380 && FT_Init_FreeType (&ft_library
) != 0)
382 if (FT_New_Face (ft_library
, filename
, index
, &cache_data
->ft_face
)
388 FcPattern
*pat
= NULL
;
389 FcFontSet
*fontset
= NULL
;
390 FcObjectSet
*objset
= NULL
;
391 FcCharSet
*charset
= NULL
;
393 pat
= FcPatternBuild (0, FC_FILE
, FcTypeString
, (FcChar8
*) filename
,
394 FC_INDEX
, FcTypeInteger
, index
, NULL
);
397 objset
= FcObjectSetBuild (FC_CHARSET
, FC_STYLE
, NULL
);
400 fontset
= FcFontList (NULL
, pat
, objset
);
403 if (fontset
&& fontset
->nfont
> 0)
405 if (FcPatternGetCharSet (fontset
->fonts
[0], FC_CHARSET
, 0,
409 /* Dirty hack. Fonts of "ja" and "ko" adstyle are
410 not suitable for Latin characters. */
412 && (EQ (AREF (entity
, FONT_ADSTYLE_INDEX
), Qja
)
413 || EQ (AREF (entity
, FONT_ADSTYLE_INDEX
), Qko
)))
415 FcCharSet
*latin1
= ftfont_get_latin1_charset ();
419 cache_data
->fc_charset
= FcCharSetSubtract (charset
,
423 cache_data
->fc_charset
= FcCharSetCopy (charset
);
426 cache_data
->fc_charset
= FcCharSetCreate ();
429 cache_data
->fc_charset
= FcCharSetCreate ();
433 FcFontSetDestroy (fontset
);
435 FcObjectSetDestroy (objset
);
437 FcPatternDestroy (pat
);
444 ftfont_get_fc_charset (entity
)
447 Lisp_Object val
, cache
;
448 struct ftfont_cache_data
*cache_data
;
450 cache
= ftfont_lookup_cache (entity
, 0);
452 cache_data
= XSAVE_VALUE (val
)->pointer
;
453 return cache_data
->fc_charset
;
458 ftfont_get_otf (ftfont_info
)
459 struct ftfont_info
*ftfont_info
;
463 if (ftfont_info
->otf
)
464 return ftfont_info
->otf
;
465 if (! ftfont_info
->maybe_otf
)
467 otf
= OTF_open_ft_face (ftfont_info
->ft_size
->face
);
468 if (! otf
|| OTF_get_table (otf
, "head") < 0)
472 ftfont_info
->maybe_otf
= 0;
475 ftfont_info
->otf
= otf
;
478 #endif /* HAVE_LIBOTF */
480 static Lisp_Object ftfont_get_cache
P_ ((FRAME_PTR
));
481 static Lisp_Object ftfont_list
P_ ((Lisp_Object
, Lisp_Object
));
482 static Lisp_Object ftfont_match
P_ ((Lisp_Object
, Lisp_Object
));
483 static Lisp_Object ftfont_list_family
P_ ((Lisp_Object
));
484 static Lisp_Object ftfont_open
P_ ((FRAME_PTR
, Lisp_Object
, int));
485 static void ftfont_close
P_ ((FRAME_PTR
, struct font
*));
486 static int ftfont_has_char
P_ ((Lisp_Object
, int));
487 static unsigned ftfont_encode_char
P_ ((struct font
*, int));
488 static int ftfont_text_extents
P_ ((struct font
*, unsigned *, int,
489 struct font_metrics
*));
490 static int ftfont_get_bitmap
P_ ((struct font
*, unsigned,
491 struct font_bitmap
*, int));
492 static int ftfont_anchor_point
P_ ((struct font
*, unsigned, int,
494 static Lisp_Object ftfont_otf_capability
P_ ((struct font
*));
495 static Lisp_Object ftfont_shape
P_ ((Lisp_Object
));
497 #ifdef HAVE_OTF_GET_VARIATION_GLYPHS
498 static int ftfont_variation_glyphs
P_ ((struct font
*, int c
,
499 unsigned variations
[256]));
500 #endif /* HAVE_OTF_GET_VARIATION_GLYPHS */
502 struct font_driver ftfont_driver
=
505 0, /* case insensitive */
510 NULL
, /* free_entity */
513 /* We can't draw a text without device dependent functions. */
514 NULL
, /* prepare_face */
515 NULL
, /* done_face */
519 /* We can't draw a text without device dependent functions. */
522 NULL
, /* get_bitmap */
523 NULL
, /* free_bitmap */
524 NULL
, /* get_outline */
527 ftfont_otf_capability
,
528 #else /* not HAVE_LIBOTF */
530 #endif /* not HAVE_LIBOTF */
531 NULL
, /* otf_drive */
532 NULL
, /* start_for_frame */
533 NULL
, /* end_for_frame */
534 #if defined (HAVE_M17N_FLT) && defined (HAVE_LIBOTF)
536 #else /* not (HAVE_M17N_FLT && HAVE_LIBOTF) */
538 #endif /* not (HAVE_M17N_FLT && HAVE_LIBOTF) */
541 #ifdef HAVE_OTF_GET_VARIATION_GLYPHS
542 ftfont_variation_glyphs
548 extern Lisp_Object QCname
;
554 return freetype_font_cache
;
558 ftfont_get_charset (registry
)
559 Lisp_Object registry
;
561 char *str
= (char *) SDATA (SYMBOL_NAME (registry
));
562 char *re
= alloca (SBYTES (SYMBOL_NAME (registry
)) * 2 + 1);
566 for (i
= j
= 0; i
< SBYTES (SYMBOL_NAME (registry
)); i
++, j
++)
570 else if (str
[i
] == '*')
577 regexp
= make_unibyte_string (re
, j
);
578 for (i
= 0; fc_charset_table
[i
].name
; i
++)
579 if (fast_c_string_match_ignore_case (regexp
, fc_charset_table
[i
].name
) >= 0)
581 if (! fc_charset_table
[i
].name
)
583 if (! fc_charset_table
[i
].fc_charset
)
586 ftfont_get_latin1_charset ();
589 FcCharSet
*charset
= FcCharSetCreate ();
590 int *uniquifier
= fc_charset_table
[i
].uniquifier
;
594 for (j
= 0; uniquifier
[j
]; j
++)
595 if (! FcCharSetAddChar (charset
, uniquifier
[j
]))
597 FcCharSetDestroy (charset
);
600 fc_charset_table
[i
].fc_charset
= charset
;
609 unsigned int script_tag
, langsys_tag
;
611 unsigned int *features
[2];
614 #define OTF_SYM_TAG(SYM, TAG) \
616 unsigned char *p = SDATA (SYMBOL_NAME (SYM)); \
617 TAG = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; \
620 #define OTF_TAG_STR(TAG, P) \
622 (P)[0] = (char) (TAG >> 24); \
623 (P)[1] = (char) ((TAG >> 16) & 0xFF); \
624 (P)[2] = (char) ((TAG >> 8) & 0xFF); \
625 (P)[3] = (char) (TAG & 0xFF); \
629 #define OTF_TAG_SYM(SYM, TAG) \
633 OTF_TAG_STR (TAG, str); \
634 (SYM) = font_intern_prop (str, 4, 1); \
638 static struct OpenTypeSpec
*
639 ftfont_get_open_type_spec (Lisp_Object otf_spec
)
641 struct OpenTypeSpec
*spec
= malloc (sizeof (struct OpenTypeSpec
));
647 spec
->script
= XCAR (otf_spec
);
648 if (! NILP (spec
->script
))
650 OTF_SYM_TAG (spec
->script
, spec
->script_tag
);
651 val
= assq_no_quit (spec
->script
, Votf_script_alist
);
652 if (CONSP (val
) && SYMBOLP (XCDR (val
)))
653 spec
->script
= XCDR (val
);
658 spec
->script_tag
= 0x44464C54; /* "DFLT" */
659 otf_spec
= XCDR (otf_spec
);
660 val
= XCAR (otf_spec
);
662 OTF_SYM_TAG (val
, spec
->langsys_tag
);
664 spec
->langsys_tag
= 0;
665 spec
->nfeatures
[0] = spec
->nfeatures
[1] = 0;
666 for (i
= 0; i
< 2; i
++)
670 otf_spec
= XCDR (otf_spec
);
673 val
= XCAR (otf_spec
);
677 spec
->features
[i
] = malloc (sizeof (int) * XINT (len
));
678 if (! spec
->features
[i
])
680 if (i
> 0 && spec
->features
[0])
681 free (spec
->features
[0]);
685 for (j
= 0, negative
= 0; CONSP (val
); val
= XCDR (val
))
687 if (NILP (XCAR (val
)))
693 OTF_SYM_TAG (XCAR (val
), tag
);
694 spec
->features
[i
][j
++] = negative
? tag
& 0x80000000 : tag
;
697 spec
->nfeatures
[i
] = j
;
702 static FcPattern
*ftfont_spec_pattern
P_ ((Lisp_Object
, char *,
703 struct OpenTypeSpec
**));
706 ftfont_spec_pattern (spec
, otlayout
, otspec
)
709 struct OpenTypeSpec
**otspec
;
711 Lisp_Object tmp
, extra
;
712 FcPattern
*pattern
= NULL
;
713 FcCharSet
*charset
= NULL
;
714 FcLangSet
*langset
= NULL
;
718 Lisp_Object script
= Qnil
;
719 Lisp_Object registry
;
722 if ((n
= FONT_SLANT_NUMERIC (spec
)) >= 0
724 /* Fontconfig doesn't support reverse-italic/obligue. */
727 if (INTEGERP (AREF (spec
, FONT_DPI_INDEX
)))
728 dpi
= XINT (AREF (spec
, FONT_DPI_INDEX
));
729 if (INTEGERP (AREF (spec
, FONT_AVGWIDTH_INDEX
))
730 && XINT (AREF (spec
, FONT_AVGWIDTH_INDEX
)) == 0)
733 registry
= AREF (spec
, FONT_REGISTRY_INDEX
);
735 || EQ (registry
, Qascii_0
)
736 || EQ (registry
, Qiso10646_1
)
737 || EQ (registry
, Qunicode_bmp
))
743 fc_charset_idx
= ftfont_get_charset (registry
);
744 if (fc_charset_idx
< 0)
746 charset
= fc_charset_table
[fc_charset_idx
].fc_charset
;
747 lang
= (FcChar8
*) fc_charset_table
[fc_charset_idx
].lang
;
750 langset
= FcLangSetCreate ();
753 FcLangSetAdd (langset
, lang
);
758 for (extra
= AREF (spec
, FONT_EXTRA_INDEX
);
759 CONSP (extra
); extra
= XCDR (extra
))
761 Lisp_Object key
, val
;
763 key
= XCAR (XCAR (extra
)), val
= XCDR (XCAR (extra
));
766 else if (EQ (key
, QClang
))
769 langset
= FcLangSetCreate ();
774 if (! FcLangSetAdd (langset
, SYMBOL_FcChar8 (val
)))
778 for (; CONSP (val
); val
= XCDR (val
))
779 if (SYMBOLP (XCAR (val
))
780 && ! FcLangSetAdd (langset
, SYMBOL_FcChar8 (XCAR (val
))))
783 else if (EQ (key
, QCotf
))
785 *otspec
= ftfont_get_open_type_spec (val
);
788 strcat (otlayout
, "otlayout:");
789 OTF_TAG_STR ((*otspec
)->script_tag
, otlayout
+ 9);
790 script
= (*otspec
)->script
;
792 else if (EQ (key
, QCscript
))
794 else if (EQ (key
, QCscalable
))
795 scalable
= ! NILP (val
);
798 if (! NILP (script
) && ! charset
)
800 Lisp_Object chars
= assq_no_quit (script
, Vscript_representative_chars
);
802 if (CONSP (chars
) && CONSP (CDR (chars
)))
804 charset
= FcCharSetCreate ();
807 for (chars
= XCDR (chars
); CONSP (chars
); chars
= XCDR (chars
))
808 if (CHARACTERP (XCAR (chars
))
809 && ! FcCharSetAddChar (charset
, XUINT (XCAR (chars
))))
814 pattern
= FcPatternCreate ();
817 tmp
= AREF (spec
, FONT_FOUNDRY_INDEX
);
819 && ! FcPatternAddString (pattern
, FC_FOUNDRY
, SYMBOL_FcChar8 (tmp
)))
821 tmp
= AREF (spec
, FONT_FAMILY_INDEX
);
823 && ! FcPatternAddString (pattern
, FC_FAMILY
, SYMBOL_FcChar8 (tmp
)))
826 && ! FcPatternAddCharSet (pattern
, FC_CHARSET
, charset
))
829 && ! FcPatternAddLangSet (pattern
, FC_LANG
, langset
))
832 && ! FcPatternAddDouble (pattern
, FC_DPI
, dpi
))
835 && ! FcPatternAddBool (pattern
, FC_SCALABLE
, scalable
? FcTrue
: FcFalse
))
841 /* We come here because of unexpected error in fontconfig API call
842 (usually insufficient memory). */
845 FcPatternDestroy (pattern
);
850 if ((*otspec
)->nfeatures
[0] > 0)
851 free ((*otspec
)->features
[0]);
852 if ((*otspec
)->nfeatures
[1] > 0)
853 free ((*otspec
)->features
[1]);
859 if (langset
) FcLangSetDestroy (langset
);
860 if (charset
&& fc_charset_idx
< 0) FcCharSetDestroy (charset
);
865 ftfont_list (frame
, spec
)
866 Lisp_Object frame
, spec
;
868 Lisp_Object val
= Qnil
, family
, adstyle
;
871 FcFontSet
*fontset
= NULL
;
872 FcObjectSet
*objset
= NULL
;
874 Lisp_Object chars
= Qnil
;
876 char otlayout
[15]; /* For "otlayout:XXXX" */
877 struct OpenTypeSpec
*otspec
= NULL
;
880 if (! fc_initialized
)
886 pattern
= ftfont_spec_pattern (spec
, otlayout
, &otspec
);
889 if (FcPatternGetCharSet (pattern
, FC_CHARSET
, 0, &charset
) != FcResultMatch
)
891 val
= assq_no_quit (QCscript
, AREF (spec
, FONT_EXTRA_INDEX
));
894 val
= assq_no_quit (XCDR (val
), Vscript_representative_chars
);
895 if (CONSP (val
) && VECTORP (XCDR (val
)))
900 if (INTEGERP (AREF (spec
, FONT_SPACING_INDEX
)))
901 spacing
= XINT (AREF (spec
, FONT_SPACING_INDEX
));
902 family
= AREF (spec
, FONT_FAMILY_INDEX
);
905 Lisp_Object resolved
;
907 resolved
= ftfont_resolve_generic_family (family
, pattern
);
908 if (! NILP (resolved
))
910 FcPatternDel (pattern
, FC_FAMILY
);
911 if (! FcPatternAddString (pattern
, FC_FAMILY
,
912 SYMBOL_FcChar8 (resolved
)))
916 adstyle
= AREF (spec
, FONT_ADSTYLE_INDEX
);
917 if (! NILP (adstyle
) && SBYTES (SYMBOL_NAME (adstyle
)) == 0)
919 objset
= FcObjectSetBuild (FC_FOUNDRY
, FC_FAMILY
, FC_WEIGHT
, FC_SLANT
,
920 FC_WIDTH
, FC_PIXEL_SIZE
, FC_SPACING
, FC_SCALABLE
,
921 FC_STYLE
, FC_FILE
, FC_INDEX
,
924 #endif /* FC_CAPABILITY */
932 FcObjectSetAdd (objset
, FC_CHARSET
);
934 fontset
= FcFontList (NULL
, pattern
, objset
);
935 if (! fontset
|| fontset
->nfont
== 0)
938 /* Need fix because this finds any fonts. */
939 if (fontset
->nfont
== 0 && ! NILP (family
))
941 /* Try maching with configuration. For instance, the
942 configuration may specify "Nimbus Mono L" as an alias of
944 FcPattern
*pat
= FcPatternBuild (0, FC_FAMILY
, FcTypeString
,
945 SYMBOL_FcChar8 (family
), NULL
);
948 if (FcConfigSubstitute (NULL
, pat
, FcMatchPattern
) == FcTrue
)
951 FcPatternGetString (pat
, FC_FAMILY
, i
, &fam
) == FcResultMatch
;
954 FcPatternDel (pattern
, FC_FAMILY
);
955 FcPatternAddString (pattern
, FC_FAMILY
, fam
);
956 FcFontSetDestroy (fontset
);
957 fontset
= FcFontList (NULL
, pattern
, objset
);
958 if (fontset
&& fontset
->nfont
> 0)
964 for (i
= 0; i
< fontset
->nfont
; i
++)
972 if ((FcPatternGetInteger (fontset
->fonts
[i
], FC_SPACING
, 0, &this)
983 if (FcPatternGetString (fontset
->fonts
[i
], FC_CAPABILITY
, 0, &this)
985 || ! strstr ((char *) this, otlayout
))
988 #endif /* FC_CAPABILITY */
995 if (FcPatternGetString (fontset
->fonts
[i
], FC_FILE
, 0, &file
)
998 otf
= OTF_open ((char *) file
);
1001 if (OTF_check_features (otf
, 1,
1002 otspec
->script_tag
, otspec
->langsys_tag
,
1003 otspec
->features
[0],
1004 otspec
->nfeatures
[0]) != 1
1005 || OTF_check_features (otf
, 0,
1006 otspec
->script_tag
, otspec
->langsys_tag
,
1007 otspec
->features
[1],
1008 otspec
->nfeatures
[1]) != 1)
1011 #endif /* HAVE_LIBOTF */
1012 if (VECTORP (chars
))
1016 if (FcPatternGetCharSet (fontset
->fonts
[i
], FC_CHARSET
, 0, &charset
)
1019 for (j
= 0; j
< ASIZE (chars
); j
++)
1020 if (NATNUMP (AREF (chars
, j
))
1021 && FcCharSetHasChar (charset
, XFASTINT (AREF (chars
, j
))))
1023 if (j
== ASIZE (chars
))
1026 if (! NILP (adstyle
))
1028 Lisp_Object this_adstyle
= get_adstyle_property (fontset
->fonts
[i
]);
1030 if (NILP (this_adstyle
)
1031 || xstrcasecmp (SDATA (SYMBOL_NAME (adstyle
)),
1032 SDATA (SYMBOL_NAME (this_adstyle
))) != 0)
1035 entity
= ftfont_pattern_entity (fontset
->fonts
[i
],
1036 AREF (spec
, FONT_EXTRA_INDEX
));
1037 if (! NILP (entity
))
1038 val
= Fcons (entity
, val
);
1040 val
= Fnreverse (val
);
1044 /* We come here because of unexpected error in fontconfig API call
1045 (usually insufficient memory). */
1049 font_add_log ("ftfont-list", spec
, val
);
1050 if (objset
) FcObjectSetDestroy (objset
);
1051 if (fontset
) FcFontSetDestroy (fontset
);
1052 if (pattern
) FcPatternDestroy (pattern
);
1057 ftfont_match (frame
, spec
)
1058 Lisp_Object frame
, spec
;
1060 Lisp_Object entity
= Qnil
;
1061 FcPattern
*pattern
, *match
= NULL
;
1063 char otlayout
[15]; /* For "otlayout:XXXX" */
1064 struct OpenTypeSpec
*otspec
= NULL
;
1066 if (! fc_initialized
)
1072 pattern
= ftfont_spec_pattern (spec
, otlayout
, &otspec
);
1076 if (INTEGERP (AREF (spec
, FONT_SIZE_INDEX
)))
1080 value
.type
= FcTypeDouble
;
1081 value
.u
.d
= XINT (AREF (spec
, FONT_SIZE_INDEX
));
1082 FcPatternAdd (pattern
, FC_PIXEL_SIZE
, value
, FcFalse
);
1084 if (FcConfigSubstitute (NULL
, pattern
, FcMatchPattern
) == FcTrue
)
1086 FcDefaultSubstitute (pattern
);
1087 match
= FcFontMatch (NULL
, pattern
, &result
);
1090 entity
= ftfont_pattern_entity (match
, AREF (spec
, FONT_EXTRA_INDEX
));
1091 FcPatternDestroy (match
);
1092 if (! NILP (AREF (spec
, FONT_FAMILY_INDEX
))
1093 && NILP (assq_no_quit (AREF (spec
, FONT_FAMILY_INDEX
),
1094 ftfont_generic_family_list
))
1095 && NILP (Fstring_equal (AREF (spec
, FONT_FAMILY_INDEX
),
1096 AREF (entity
, FONT_FAMILY_INDEX
))))
1100 FcPatternDestroy (pattern
);
1102 font_add_log ("ftfont-match", spec
, entity
);
1107 ftfont_list_family (frame
)
1110 Lisp_Object list
= Qnil
;
1111 FcPattern
*pattern
= NULL
;
1112 FcFontSet
*fontset
= NULL
;
1113 FcObjectSet
*objset
= NULL
;
1116 if (! fc_initialized
)
1122 pattern
= FcPatternCreate ();
1125 objset
= FcObjectSetBuild (FC_FAMILY
, NULL
);
1128 fontset
= FcFontList (NULL
, pattern
, objset
);
1132 for (i
= 0; i
< fontset
->nfont
; i
++)
1134 FcPattern
*pat
= fontset
->fonts
[i
];
1137 if (FcPatternGetString (pat
, FC_FAMILY
, 0, &str
) == FcResultMatch
)
1138 list
= Fcons (intern ((char *) str
), list
);
1142 if (objset
) FcObjectSetDestroy (objset
);
1143 if (fontset
) FcFontSetDestroy (fontset
);
1144 if (pattern
) FcPatternDestroy (pattern
);
1151 ftfont_open (f
, entity
, pixel_size
)
1156 struct ftfont_info
*ftfont_info
;
1158 struct ftfont_cache_data
*cache_data
;
1162 Lisp_Object val
, filename
, index
, cache
, font_object
;
1169 val
= assq_no_quit (QCfont_entity
, AREF (entity
, FONT_EXTRA_INDEX
));
1173 cache
= ftfont_lookup_cache (entity
, 1);
1176 filename
= XCAR (val
);
1179 cache_data
= XSAVE_VALUE (XCDR (cache
))->pointer
;
1180 ft_face
= cache_data
->ft_face
;
1181 if (XSAVE_VALUE (val
)->integer
> 0)
1183 /* FT_Face in this cache is already used by the different size. */
1184 if (FT_New_Size (ft_face
, &ft_size
) != 0)
1186 if (FT_Activate_Size (ft_size
) != 0)
1188 FT_Done_Size (ft_size
);
1192 XSAVE_VALUE (val
)->integer
++;
1193 size
= XINT (AREF (entity
, FONT_SIZE_INDEX
));
1196 if (FT_Set_Pixel_Sizes (ft_face
, size
, size
) != 0)
1198 if (XSAVE_VALUE (val
)->integer
== 0)
1199 FT_Done_Face (ft_face
);
1203 font_object
= font_make_object (VECSIZE (struct ftfont_info
), entity
, size
);
1204 ASET (font_object
, FONT_TYPE_INDEX
, Qfreetype
);
1205 len
= font_unparse_xlfd (entity
, size
, name
, 256);
1207 ASET (font_object
, FONT_NAME_INDEX
, make_string (name
, len
));
1208 len
= font_unparse_fcname (entity
, size
, name
, 256);
1210 ASET (font_object
, FONT_FULLNAME_INDEX
, make_string (name
, len
));
1212 ASET (font_object
, FONT_FULLNAME_INDEX
,
1213 AREF (font_object
, FONT_NAME_INDEX
));
1214 ASET (font_object
, FONT_FILE_INDEX
, filename
);
1215 ASET (font_object
, FONT_FORMAT_INDEX
, ftfont_font_format (NULL
, filename
));
1216 font
= XFONT_OBJECT (font_object
);
1217 ftfont_info
= (struct ftfont_info
*) font
;
1218 ftfont_info
->ft_size
= ft_face
->size
;
1219 ftfont_info
->index
= XINT (index
);
1221 ftfont_info
->maybe_otf
= ft_face
->face_flags
& FT_FACE_FLAG_SFNT
;
1222 ftfont_info
->otf
= NULL
;
1223 #endif /* HAVE_LIBOTF */
1224 font
->pixel_size
= size
;
1225 font
->driver
= &ftfont_driver
;
1226 font
->encoding_charset
= font
->repertory_charset
= -1;
1228 upEM
= ft_face
->units_per_EM
;
1229 scalable
= (INTEGERP (AREF (entity
, FONT_AVGWIDTH_INDEX
))
1230 && XINT (AREF (entity
, FONT_AVGWIDTH_INDEX
)) == 0);
1233 font
->ascent
= ft_face
->ascender
* size
/ upEM
;
1234 font
->descent
= - ft_face
->descender
* size
/ upEM
;
1235 font
->height
= ft_face
->height
* size
/ upEM
;
1239 font
->ascent
= ft_face
->size
->metrics
.ascender
>> 6;
1240 font
->descent
= - ft_face
->size
->metrics
.descender
>> 6;
1241 font
->height
= ft_face
->size
->metrics
.height
>> 6;
1243 if (INTEGERP (AREF (entity
, FONT_SPACING_INDEX
)))
1244 spacing
= XINT (AREF (entity
, FONT_SPACING_INDEX
));
1246 spacing
= FC_PROPORTIONAL
;
1247 if (spacing
!= FC_PROPORTIONAL
)
1248 font
->min_width
= font
->average_width
= font
->space_width
1249 = (scalable
? ft_face
->max_advance_width
* size
/ upEM
1250 : ft_face
->size
->metrics
.max_advance
>> 6);
1255 font
->min_width
= font
->average_width
= font
->space_width
= 0;
1256 for (i
= 32, n
= 0; i
< 127; i
++)
1257 if (FT_Load_Char (ft_face
, i
, FT_LOAD_DEFAULT
) == 0)
1259 int this_width
= ft_face
->glyph
->metrics
.horiAdvance
>> 6;
1262 && (! font
->min_width
|| font
->min_width
> this_width
))
1263 font
->min_width
= this_width
;
1265 font
->space_width
= this_width
;
1266 font
->average_width
+= this_width
;
1270 font
->average_width
/= n
;
1273 font
->baseline_offset
= 0;
1274 font
->relative_compose
= 0;
1275 font
->default_ascent
= 0;
1276 font
->vertical_centering
= 0;
1279 font
->underline_position
= -ft_face
->underline_position
* size
/ upEM
;
1280 font
->underline_thickness
= ft_face
->underline_thickness
* size
/ upEM
;
1284 font
->underline_position
= -1;
1285 font
->underline_thickness
= 0;
1292 ftfont_close (f
, font
)
1296 struct ftfont_info
*ftfont_info
= (struct ftfont_info
*) font
;
1297 Lisp_Object val
, cache
;
1299 val
= Fcons (font
->props
[FONT_FILE_INDEX
], make_number (ftfont_info
->index
));
1300 cache
= ftfont_lookup_cache (val
, 1);
1301 xassert (CONSP (cache
));
1303 (XSAVE_VALUE (val
)->integer
)--;
1304 if (XSAVE_VALUE (val
)->integer
== 0)
1306 struct ftfont_cache_data
*cache_data
= XSAVE_VALUE (val
)->pointer
;
1308 FT_Done_Face (cache_data
->ft_face
);
1310 if (ftfont_info
->otf
)
1311 OTF_close (ftfont_info
->otf
);
1313 cache_data
->ft_face
= NULL
;
1316 FT_Done_Size (ftfont_info
->ft_size
);
1320 ftfont_has_char (font
, c
)
1324 if (FONT_ENTITY_P (font
))
1326 FcCharSet
*charset
= ftfont_get_fc_charset (font
);
1328 return (FcCharSetHasChar (charset
, c
) == FcTrue
);
1332 struct ftfont_info
*ftfont_info
;
1334 ftfont_info
= (struct ftfont_info
*) XFONT_OBJECT (font
);
1335 return (FT_Get_Char_Index (ftfont_info
->ft_size
->face
, (FT_ULong
) c
)
1341 ftfont_encode_char (font
, c
)
1345 struct ftfont_info
*ftfont_info
= (struct ftfont_info
*) font
;
1346 FT_Face ft_face
= ftfont_info
->ft_size
->face
;
1347 FT_ULong charcode
= c
;
1348 FT_UInt code
= FT_Get_Char_Index (ft_face
, charcode
);
1350 return (code
> 0 ? code
: FONT_INVALID_CODE
);
1354 ftfont_text_extents (font
, code
, nglyphs
, metrics
)
1358 struct font_metrics
*metrics
;
1360 struct ftfont_info
*ftfont_info
= (struct ftfont_info
*) font
;
1361 FT_Face ft_face
= ftfont_info
->ft_size
->face
;
1365 if (ftfont_info
->ft_size
!= ft_face
->size
)
1366 FT_Activate_Size (ftfont_info
->ft_size
);
1368 bzero (metrics
, sizeof (struct font_metrics
));
1369 for (i
= 0, first
= 1; i
< nglyphs
; i
++)
1371 if (FT_Load_Glyph (ft_face
, code
[i
], FT_LOAD_DEFAULT
) == 0)
1373 FT_Glyph_Metrics
*m
= &ft_face
->glyph
->metrics
;
1379 metrics
->lbearing
= m
->horiBearingX
>> 6;
1380 metrics
->rbearing
= (m
->horiBearingX
+ m
->width
) >> 6;
1381 metrics
->ascent
= m
->horiBearingY
>> 6;
1382 metrics
->descent
= (m
->height
- m
->horiBearingY
) >> 6;
1388 if (metrics
->lbearing
> width
+ (m
->horiBearingX
>> 6))
1389 metrics
->lbearing
= width
+ (m
->horiBearingX
>> 6);
1390 if (metrics
->rbearing
1391 < width
+ ((m
->horiBearingX
+ m
->width
) >> 6))
1393 = width
+ ((m
->horiBearingX
+ m
->width
) >> 6);
1394 if (metrics
->ascent
< (m
->horiBearingY
>> 6))
1395 metrics
->ascent
= m
->horiBearingY
>> 6;
1396 if (metrics
->descent
> ((m
->height
- m
->horiBearingY
) >> 6))
1397 metrics
->descent
= (m
->height
- m
->horiBearingY
) >> 6;
1399 width
+= m
->horiAdvance
>> 6;
1403 width
+= font
->space_width
;
1407 metrics
->width
= width
;
1413 ftfont_get_bitmap (font
, code
, bitmap
, bits_per_pixel
)
1416 struct font_bitmap
*bitmap
;
1419 struct ftfont_info
*ftfont_info
= (struct ftfont_info
*) font
;
1420 FT_Face ft_face
= ftfont_info
->ft_size
->face
;
1421 FT_Int32 load_flags
= FT_LOAD_RENDER
;
1423 if (ftfont_info
->ft_size
!= ft_face
->size
)
1424 FT_Activate_Size (ftfont_info
->ft_size
);
1425 if (bits_per_pixel
== 1)
1427 #ifdef FT_LOAD_TARGET_MONO
1428 load_flags
|= FT_LOAD_TARGET_MONO
;
1430 load_flags
|= FT_LOAD_MONOCHROME
;
1433 else if (bits_per_pixel
!= 8)
1434 /* We don't support such a rendering. */
1437 if (FT_Load_Glyph (ft_face
, code
, load_flags
) != 0)
1439 bitmap
->bits_per_pixel
1440 = (ft_face
->glyph
->bitmap
.pixel_mode
== FT_PIXEL_MODE_MONO
? 1
1441 : ft_face
->glyph
->bitmap
.pixel_mode
== FT_PIXEL_MODE_GRAY
? 8
1442 : ft_face
->glyph
->bitmap
.pixel_mode
== FT_PIXEL_MODE_LCD
? 8
1443 : ft_face
->glyph
->bitmap
.pixel_mode
== FT_PIXEL_MODE_LCD_V
? 8
1445 if (bitmap
->bits_per_pixel
< 0)
1446 /* We don't suport that kind of pixel mode. */
1448 bitmap
->rows
= ft_face
->glyph
->bitmap
.rows
;
1449 bitmap
->width
= ft_face
->glyph
->bitmap
.width
;
1450 bitmap
->pitch
= ft_face
->glyph
->bitmap
.pitch
;
1451 bitmap
->buffer
= ft_face
->glyph
->bitmap
.buffer
;
1452 bitmap
->left
= ft_face
->glyph
->bitmap_left
;
1453 bitmap
->top
= ft_face
->glyph
->bitmap_top
;
1454 bitmap
->advance
= ft_face
->glyph
->metrics
.horiAdvance
>> 6;
1455 bitmap
->extra
= NULL
;
1461 ftfont_anchor_point (font
, code
, index
, x
, y
)
1467 struct ftfont_info
*ftfont_info
= (struct ftfont_info
*) font
;
1468 FT_Face ft_face
= ftfont_info
->ft_size
->face
;
1470 if (ftfont_info
->ft_size
!= ft_face
->size
)
1471 FT_Activate_Size (ftfont_info
->ft_size
);
1472 if (FT_Load_Glyph (ft_face
, code
, FT_LOAD_DEFAULT
) != 0)
1474 if (ft_face
->glyph
->format
!= FT_GLYPH_FORMAT_OUTLINE
)
1476 if (index
>= ft_face
->glyph
->outline
.n_points
)
1478 *x
= ft_face
->glyph
->outline
.points
[index
].x
;
1479 *y
= ft_face
->glyph
->outline
.points
[index
].y
;
1486 ftfont_otf_features (gsub_gpos
)
1487 OTF_GSUB_GPOS
*gsub_gpos
;
1489 Lisp_Object scripts
, langsyses
, features
, sym
;
1492 for (scripts
= Qnil
, i
= gsub_gpos
->ScriptList
.ScriptCount
- 1; i
>= 0; i
--)
1494 OTF_Script
*otf_script
= gsub_gpos
->ScriptList
.Script
+ i
;
1496 for (langsyses
= Qnil
, j
= otf_script
->LangSysCount
- 1; j
>= -1; j
--)
1498 OTF_LangSys
*otf_langsys
;
1501 otf_langsys
= otf_script
->LangSys
+ j
;
1502 else if (otf_script
->DefaultLangSysOffset
)
1503 otf_langsys
= &otf_script
->DefaultLangSys
;
1507 for (features
= Qnil
, k
= otf_langsys
->FeatureCount
- 1; k
>= 0; k
--)
1509 l
= otf_langsys
->FeatureIndex
[k
];
1510 if (l
>= gsub_gpos
->FeatureList
.FeatureCount
)
1512 OTF_TAG_SYM (sym
, gsub_gpos
->FeatureList
.Feature
[l
].FeatureTag
);
1513 features
= Fcons (sym
, features
);
1516 OTF_TAG_SYM (sym
, otf_script
->LangSysRecord
[j
].LangSysTag
);
1519 langsyses
= Fcons (Fcons (sym
, features
), langsyses
);
1522 OTF_TAG_SYM (sym
, gsub_gpos
->ScriptList
.Script
[i
].ScriptTag
);
1523 scripts
= Fcons (Fcons (sym
, langsyses
), scripts
);
1531 ftfont_otf_capability (font
)
1534 struct ftfont_info
*ftfont_info
= (struct ftfont_info
*) font
;
1535 OTF
*otf
= ftfont_get_otf (ftfont_info
);
1536 Lisp_Object gsub_gpos
;
1540 gsub_gpos
= Fcons (Qnil
, Qnil
);
1541 if (OTF_get_table (otf
, "GSUB") == 0
1542 && otf
->gsub
->FeatureList
.FeatureCount
> 0)
1543 XSETCAR (gsub_gpos
, ftfont_otf_features (otf
->gsub
));
1544 if (OTF_get_table (otf
, "GPOS") == 0
1545 && otf
->gpos
->FeatureList
.FeatureCount
> 0)
1546 XSETCDR (gsub_gpos
, ftfont_otf_features (otf
->gpos
));
1550 #ifdef HAVE_M17N_FLT
1561 ftfont_get_glyph_id (font
, gstring
, from
, to
)
1563 MFLTGlyphString
*gstring
;
1566 struct MFLTFontFT
*flt_font_ft
= (struct MFLTFontFT
*) font
;
1567 FT_Face ft_face
= flt_font_ft
->ft_face
;
1570 for (g
= gstring
->glyphs
+ from
; from
< to
; g
++, from
++)
1573 FT_UInt code
= FT_Get_Char_Index (ft_face
, g
->code
);
1575 g
->code
= code
> 0 ? code
: FONT_INVALID_CODE
;
1582 ftfont_get_metrics (font
, gstring
, from
, to
)
1584 MFLTGlyphString
*gstring
;
1587 struct MFLTFontFT
*flt_font_ft
= (struct MFLTFontFT
*) font
;
1588 FT_Face ft_face
= flt_font_ft
->ft_face
;
1591 for (g
= gstring
->glyphs
+ from
; from
< to
; g
++, from
++)
1594 if (g
->code
!= FONT_INVALID_CODE
)
1596 FT_Glyph_Metrics
*m
;
1598 if (FT_Load_Glyph (ft_face
, g
->code
, FT_LOAD_DEFAULT
) != 0)
1600 m
= &ft_face
->glyph
->metrics
;
1602 g
->lbearing
= m
->horiBearingX
;
1603 g
->rbearing
= m
->horiBearingX
+ m
->width
;
1604 g
->ascent
= m
->horiBearingY
;
1605 g
->descent
= m
->height
- m
->horiBearingY
;
1606 g
->xadv
= m
->horiAdvance
;
1611 g
->rbearing
= g
->xadv
= flt_font_ft
->font
->space_width
<< 6;
1612 g
->ascent
= flt_font_ft
->font
->ascent
<< 6;
1613 g
->descent
= flt_font_ft
->font
->descent
<< 6;
1622 ftfont_check_otf (MFLTFont
*font
, MFLTOtfSpec
*spec
)
1624 struct MFLTFontFT
*flt_font_ft
= (struct MFLTFontFT
*) font
;
1625 OTF
*otf
= flt_font_ft
->otf
;
1629 for (i
= 0; i
< 2; i
++)
1631 if (! spec
->features
[i
])
1633 for (n
= 0; spec
->features
[i
][n
]; n
++);
1634 tags
= alloca (sizeof (OTF_Tag
) * n
);
1635 for (n
= 0, negative
= 0; spec
->features
[i
][n
]; n
++)
1637 if (spec
->features
[i
][n
] == 0xFFFFFFFF)
1640 tags
[n
- 1] = spec
->features
[i
][n
] | 0x80000000;
1642 tags
[n
] = spec
->features
[i
][n
];
1644 if (n
- negative
> 0
1645 && OTF_check_features (otf
, i
== 0, spec
->script
, spec
->langsys
,
1646 tags
, n
- negative
) != 1)
1652 #define DEVICE_DELTA(table, size) \
1653 (((size) >= (table).StartSize && (size) <= (table).EndSize) \
1654 ? (table).DeltaValue[(size) - (table).StartSize] << 6 \
1658 adjust_anchor (FT_Face ft_face
, OTF_Anchor
*anchor
,
1659 unsigned code
, int x_ppem
, int y_ppem
, int *x
, int *y
)
1661 if (anchor
->AnchorFormat
== 2)
1663 FT_Outline
*outline
;
1664 int ap
= anchor
->f
.f1
.AnchorPoint
;
1666 FT_Load_Glyph (ft_face
, (FT_UInt
) code
, FT_LOAD_MONOCHROME
);
1667 outline
= &ft_face
->glyph
->outline
;
1668 if (ap
< outline
->n_points
)
1670 *x
= outline
->points
[ap
].x
<< 6;
1671 *y
= outline
->points
[ap
].y
<< 6;
1674 else if (anchor
->AnchorFormat
== 3)
1676 if (anchor
->f
.f2
.XDeviceTable
.offset
1677 && anchor
->f
.f2
.XDeviceTable
.DeltaValue
)
1678 *x
+= DEVICE_DELTA (anchor
->f
.f2
.XDeviceTable
, x_ppem
);
1679 if (anchor
->f
.f2
.YDeviceTable
.offset
1680 && anchor
->f
.f2
.YDeviceTable
.DeltaValue
)
1681 *y
+= DEVICE_DELTA (anchor
->f
.f2
.YDeviceTable
, y_ppem
);
1685 static OTF_GlyphString otf_gstring
;
1688 setup_otf_gstring (int size
)
1690 if (otf_gstring
.size
== 0)
1692 otf_gstring
.glyphs
= (OTF_Glyph
*) malloc (sizeof (OTF_Glyph
) * size
);
1693 otf_gstring
.size
= size
;
1695 else if (otf_gstring
.size
< size
)
1697 otf_gstring
.glyphs
= (OTF_Glyph
*) realloc (otf_gstring
.glyphs
,
1698 sizeof (OTF_Glyph
) * size
);
1699 otf_gstring
.size
= size
;
1701 otf_gstring
.used
= size
;
1702 memset (otf_gstring
.glyphs
, 0, sizeof (OTF_Glyph
) * size
);
1707 ftfont_drive_otf (font
, spec
, in
, from
, to
, out
, adjustment
)
1710 MFLTGlyphString
*in
;
1712 MFLTGlyphString
*out
;
1713 MFLTGlyphAdjustment
*adjustment
;
1715 struct MFLTFontFT
*flt_font_ft
= (struct MFLTFontFT
*) font
;
1716 FT_Face ft_face
= flt_font_ft
->ft_face
;
1717 OTF
*otf
= flt_font_ft
->otf
;
1718 int len
= to
- from
;
1721 char script
[5], *langsys
= NULL
;
1722 char *gsub_features
= NULL
, *gpos_features
= NULL
;
1726 OTF_tag_name (spec
->script
, script
);
1729 langsys
= alloca (5);
1730 OTF_tag_name (spec
->langsys
, langsys
);
1732 for (i
= 0; i
< 2; i
++)
1736 if (spec
->features
[i
] && spec
->features
[i
][1] != 0xFFFFFFFF)
1738 for (j
= 0; spec
->features
[i
][j
]; j
++);
1740 p
= gsub_features
= alloca (6 * j
);
1742 p
= gpos_features
= alloca (6 * j
);
1743 for (j
= 0; spec
->features
[i
][j
]; j
++)
1745 if (spec
->features
[i
][j
] == 0xFFFFFFFF)
1746 *p
++ = '*', *p
++ = ',';
1749 OTF_tag_name (spec
->features
[i
][j
], p
);
1758 setup_otf_gstring (len
);
1759 for (i
= 0; i
< len
; i
++)
1761 otf_gstring
.glyphs
[i
].c
= in
->glyphs
[from
+ i
].c
;
1762 otf_gstring
.glyphs
[i
].glyph_id
= in
->glyphs
[from
+ i
].code
;
1765 OTF_drive_gdef (otf
, &otf_gstring
);
1770 if (OTF_drive_gsub (otf
, &otf_gstring
, script
, langsys
, gsub_features
)
1773 if (out
->allocated
< out
->used
+ otf_gstring
.used
)
1775 for (i
= 0, otfg
= otf_gstring
.glyphs
; i
< otf_gstring
.used
; )
1778 int min_from
, max_to
;
1781 g
= out
->glyphs
+ out
->used
;
1782 *g
= in
->glyphs
[from
+ otfg
->f
.index
.from
];
1783 if (g
->code
!= otfg
->glyph_id
)
1786 g
->code
= otfg
->glyph_id
;
1792 if (otfg
->f
.index
.from
< otfg
->f
.index
.to
)
1794 /* OTFG substitutes multiple glyphs in IN. */
1795 for (j
= from
+ otfg
->f
.index
.from
+ 1;
1796 j
<= from
+ otfg
->f
.index
.to
; j
++)
1798 if (min_from
> in
->glyphs
[j
].from
)
1799 min_from
= in
->glyphs
[j
].from
;
1800 if (max_to
< in
->glyphs
[j
].to
)
1801 max_to
= in
->glyphs
[j
].to
;
1806 for (i
++, otfg
++; (i
< otf_gstring
.used
1807 && otfg
->f
.index
.from
== otfg
[-1].f
.index
.from
);
1810 g
= out
->glyphs
+ out
->used
;
1811 *g
= in
->glyphs
[from
+ otfg
->f
.index
.to
];
1812 if (g
->code
!= otfg
->glyph_id
)
1815 g
->code
= otfg
->glyph_id
;
1824 if (out
->allocated
< out
->used
+ len
)
1826 for (i
= 0; i
< len
; i
++)
1827 out
->glyphs
[out
->used
++] = in
->glyphs
[from
+ i
];
1832 MFLTGlyph
*base
= NULL
, *mark
= NULL
, *g
;
1833 int x_ppem
, y_ppem
, x_scale
, y_scale
;
1835 if (OTF_drive_gpos (otf
, &otf_gstring
, script
, langsys
, gpos_features
)
1839 x_ppem
= ft_face
->size
->metrics
.x_ppem
;
1840 y_ppem
= ft_face
->size
->metrics
.y_ppem
;
1841 x_scale
= ft_face
->size
->metrics
.x_scale
;
1842 y_scale
= ft_face
->size
->metrics
.y_scale
;
1844 for (i
= 0, otfg
= otf_gstring
.glyphs
, g
= out
->glyphs
+ gidx
;
1845 i
< otf_gstring
.used
; i
++, otfg
++, g
++)
1849 if (! otfg
->glyph_id
)
1851 switch (otfg
->positioning_type
)
1855 case 1: /* Single */
1858 int format
= otfg
->f
.f1
.format
;
1860 if (format
& OTF_XPlacement
)
1862 = otfg
->f
.f1
.value
->XPlacement
* x_scale
/ 0x10000;
1863 if (format
& OTF_XPlaDevice
)
1865 += DEVICE_DELTA (otfg
->f
.f1
.value
->XPlaDevice
, x_ppem
);
1866 if (format
& OTF_YPlacement
)
1868 = - (otfg
->f
.f1
.value
->YPlacement
* y_scale
/ 0x10000);
1869 if (format
& OTF_YPlaDevice
)
1871 -= DEVICE_DELTA (otfg
->f
.f1
.value
->YPlaDevice
, y_ppem
);
1872 if (format
& OTF_XAdvance
)
1874 += otfg
->f
.f1
.value
->XAdvance
* x_scale
/ 0x10000;
1875 if (format
& OTF_XAdvDevice
)
1877 += DEVICE_DELTA (otfg
->f
.f1
.value
->XAdvDevice
, x_ppem
);
1878 if (format
& OTF_YAdvance
)
1880 += otfg
->f
.f1
.value
->YAdvance
* y_scale
/ 0x10000;
1881 if (format
& OTF_YAdvDevice
)
1883 += DEVICE_DELTA (otfg
->f
.f1
.value
->YAdvDevice
, y_ppem
);
1884 adjustment
[i
].set
= 1;
1887 case 3: /* Cursive */
1888 /* Not yet supported. */
1890 case 4: /* Mark-to-Base */
1891 case 5: /* Mark-to-Ligature */
1895 goto label_adjust_anchor
;
1896 default: /* i.e. case 6 Mark-to-Mark */
1901 label_adjust_anchor
:
1903 int base_x
, base_y
, mark_x
, mark_y
;
1904 int this_from
, this_to
;
1906 base_x
= otfg
->f
.f4
.base_anchor
->XCoordinate
* x_scale
/ 0x10000;
1907 base_y
= otfg
->f
.f4
.base_anchor
->YCoordinate
* y_scale
/ 0x10000;
1908 mark_x
= otfg
->f
.f4
.mark_anchor
->XCoordinate
* x_scale
/ 0x10000;
1909 mark_y
= otfg
->f
.f4
.mark_anchor
->YCoordinate
* y_scale
/ 0x10000;
1911 if (otfg
->f
.f4
.base_anchor
->AnchorFormat
!= 1)
1912 adjust_anchor (ft_face
, otfg
->f
.f4
.base_anchor
,
1913 prev
->code
, x_ppem
, y_ppem
, &base_x
, &base_y
);
1914 if (otfg
->f
.f4
.mark_anchor
->AnchorFormat
!= 1)
1915 adjust_anchor (ft_face
, otfg
->f
.f4
.mark_anchor
, g
->code
,
1916 x_ppem
, y_ppem
, &mark_x
, &mark_y
);
1917 adjustment
[i
].xoff
= (base_x
- mark_x
);
1918 adjustment
[i
].yoff
= - (base_y
- mark_y
);
1919 adjustment
[i
].back
= (g
- prev
);
1920 adjustment
[i
].xadv
= 0;
1921 adjustment
[i
].advance_is_absolute
= 1;
1922 adjustment
[i
].set
= 1;
1923 this_from
= g
->from
;
1925 for (j
= 0; prev
+ j
< g
; j
++)
1927 if (this_from
> prev
[j
].from
)
1928 this_from
= prev
[j
].from
;
1929 if (this_to
< prev
[j
].to
)
1930 this_to
= prev
[j
].to
;
1932 for (; prev
<= g
; prev
++)
1934 prev
->from
= this_from
;
1939 if (otfg
->GlyphClass
== OTF_GlyphClass0
)
1941 else if (otfg
->GlyphClass
== OTF_GlyphClassMark
)
1950 if (out
->allocated
< out
->used
+ len
)
1952 font
->get_metrics (font
, in
, from
, to
);
1953 memcpy (out
->glyphs
+ out
->used
, in
->glyphs
+ from
,
1954 sizeof (MFLTGlyph
) * len
);
1959 static MFLTGlyphString gstring
;
1961 static int m17n_flt_initialized
;
1963 extern Lisp_Object QCfamily
;
1966 ftfont_shape_by_flt (lgstring
, font
, ft_face
, otf
)
1967 Lisp_Object lgstring
;
1972 EMACS_UINT len
= LGSTRING_GLYPH_LEN (lgstring
);
1974 struct MFLTFontFT flt_font_ft
;
1976 int with_variation_selector
= 0;
1978 if (! m17n_flt_initialized
)
1981 m17n_flt_initialized
= 1;
1984 for (i
= 0; i
< len
; i
++)
1986 Lisp_Object g
= LGSTRING_GLYPH (lgstring
, i
);
1991 c
= LGLYPH_CHAR (g
);
1992 if (CHAR_VARIATION_SELECTOR_P (c
))
1993 with_variation_selector
++;
1996 if (with_variation_selector
)
1998 setup_otf_gstring (len
);
1999 for (i
= 0; i
< len
; i
++)
2001 Lisp_Object g
= LGSTRING_GLYPH (lgstring
, i
);
2003 otf_gstring
.glyphs
[i
].c
= LGLYPH_CHAR (g
);
2004 otf_gstring
.glyphs
[i
].f
.index
.from
= LGLYPH_FROM (g
);
2005 otf_gstring
.glyphs
[i
].f
.index
.to
= LGLYPH_TO (g
);
2007 OTF_drive_cmap (otf
, &otf_gstring
);
2008 for (i
= 0; i
< otf_gstring
.used
; i
++)
2010 OTF_Glyph
*otfg
= otf_gstring
.glyphs
+ i
;
2011 Lisp_Object g0
= LGSTRING_GLYPH (lgstring
, otfg
->f
.index
.from
);
2012 Lisp_Object g1
= LGSTRING_GLYPH (lgstring
, otfg
->f
.index
.to
);
2014 LGLYPH_SET_CODE (g0
, otfg
->glyph_id
);
2015 LGLYPH_SET_TO (g0
, LGLYPH_TO (g1
));
2016 LGSTRING_SET_GLYPH (lgstring
, i
, g0
);
2018 if (len
> otf_gstring
.used
)
2020 len
= otf_gstring
.used
;
2021 LGSTRING_SET_GLYPH (lgstring
, len
, Qnil
);
2025 if (gstring
.allocated
== 0)
2027 gstring
.allocated
= len
* 2;
2028 gstring
.glyph_size
= sizeof (MFLTGlyph
);
2029 gstring
.glyphs
= malloc (sizeof (MFLTGlyph
) * gstring
.allocated
);
2031 else if (gstring
.allocated
< len
* 2)
2033 gstring
.allocated
= len
* 2;
2034 gstring
.glyphs
= realloc (gstring
.glyphs
,
2035 sizeof (MFLTGlyph
) * gstring
.allocated
);
2037 memset (gstring
.glyphs
, 0, sizeof (MFLTGlyph
) * len
);
2038 for (i
= 0; i
< len
; i
++)
2040 Lisp_Object g
= LGSTRING_GLYPH (lgstring
, i
);
2042 gstring
.glyphs
[i
].c
= LGLYPH_CHAR (g
);
2043 if (with_variation_selector
)
2045 gstring
.glyphs
[i
].code
= LGLYPH_CODE (g
);
2046 gstring
.glyphs
[i
].encoded
= 1;
2054 Lisp_Object family
= Ffont_get (LGSTRING_FONT (lgstring
), QCfamily
);
2057 flt_font_ft
.flt_font
.family
= Mnil
;
2059 flt_font_ft
.flt_font
.family
2060 = msymbol ((char *) SDATA (Fdowncase (SYMBOL_NAME (family
))));
2062 flt_font_ft
.flt_font
.x_ppem
= ft_face
->size
->metrics
.x_ppem
;
2063 flt_font_ft
.flt_font
.y_ppem
= ft_face
->size
->metrics
.y_ppem
;
2064 flt_font_ft
.flt_font
.get_glyph_id
= ftfont_get_glyph_id
;
2065 flt_font_ft
.flt_font
.get_metrics
= ftfont_get_metrics
;
2066 flt_font_ft
.flt_font
.check_otf
= ftfont_check_otf
;
2067 flt_font_ft
.flt_font
.drive_otf
= ftfont_drive_otf
;
2068 flt_font_ft
.flt_font
.internal
= NULL
;
2069 flt_font_ft
.font
= font
;
2070 flt_font_ft
.ft_face
= ft_face
;
2071 flt_font_ft
.otf
= otf
;
2073 && gstring
.glyphs
[1].c
>= 0x300 && gstring
.glyphs
[1].c
<= 0x36F)
2074 /* A little bit ad hoc. Perhaps, shaper must get script and
2075 language information, and select a proper flt for them
2077 flt
= mflt_get (msymbol ("combining"));
2078 for (i
= 0; i
< 3; i
++)
2080 int result
= mflt_run (&gstring
, 0, len
, &flt_font_ft
.flt_font
, flt
);
2083 gstring
.allocated
+= gstring
.allocated
;
2084 gstring
.glyphs
= realloc (gstring
.glyphs
,
2085 sizeof (MFLTGlyph
) * gstring
.allocated
);
2087 if (gstring
.used
> LGSTRING_GLYPH_LEN (lgstring
))
2089 for (i
= 0; i
< gstring
.used
; i
++)
2091 MFLTGlyph
*g
= gstring
.glyphs
+ i
;
2093 g
->from
= LGLYPH_FROM (LGSTRING_GLYPH (lgstring
, g
->from
));
2094 g
->to
= LGLYPH_TO (LGSTRING_GLYPH (lgstring
, g
->to
));
2097 for (i
= 0; i
< gstring
.used
; i
++)
2099 Lisp_Object lglyph
= LGSTRING_GLYPH (lgstring
, i
);
2100 MFLTGlyph
*g
= gstring
.glyphs
+ i
;
2104 lglyph
= Fmake_vector (make_number (LGLYPH_SIZE
), Qnil
);
2105 LGSTRING_SET_GLYPH (lgstring
, i
, lglyph
);
2107 LGLYPH_SET_FROM (lglyph
, g
->from
);
2108 LGLYPH_SET_TO (lglyph
, g
->to
);
2109 LGLYPH_SET_CHAR (lglyph
, g
->c
);
2110 LGLYPH_SET_CODE (lglyph
, g
->code
);
2111 LGLYPH_SET_WIDTH (lglyph
, g
->xadv
>> 6);
2112 LGLYPH_SET_LBEARING (lglyph
, g
->lbearing
>> 6);
2113 LGLYPH_SET_RBEARING (lglyph
, g
->rbearing
>> 6);
2114 LGLYPH_SET_ASCENT (lglyph
, g
->ascent
>> 6);
2115 LGLYPH_SET_DESCENT (lglyph
, g
->descent
>> 6);
2120 vec
= Fmake_vector (make_number (3), Qnil
);
2121 ASET (vec
, 0, make_number (g
->xoff
>> 6));
2122 ASET (vec
, 1, make_number (g
->yoff
>> 6));
2123 ASET (vec
, 2, make_number (g
->xadv
>> 6));
2124 LGLYPH_SET_ADJUSTMENT (lglyph
, vec
);
2127 return make_number (i
);
2131 ftfont_shape (lgstring
)
2132 Lisp_Object lgstring
;
2135 struct ftfont_info
*ftfont_info
;
2138 CHECK_FONT_GET_OBJECT (LGSTRING_FONT (lgstring
), font
);
2139 ftfont_info
= (struct ftfont_info
*) font
;
2140 otf
= ftfont_get_otf (ftfont_info
);
2142 return make_number (0);
2143 return ftfont_shape_by_flt (lgstring
, font
, ftfont_info
->ft_size
->face
, otf
);
2146 #endif /* HAVE_M17N_FLT */
2148 #ifdef HAVE_OTF_GET_VARIATION_GLYPHS
2151 ftfont_variation_glyphs (font
, c
, variations
)
2154 unsigned variations
[256];
2156 struct ftfont_info
*ftfont_info
= (struct ftfont_info
*) font
;
2157 OTF
*otf
= ftfont_get_otf (ftfont_info
);
2161 return OTF_get_variation_glyphs (otf
, c
, variations
);
2164 #endif /* HAVE_OTF_GET_VARIATION_GLYPHS */
2165 #endif /* HAVE_LIBOTF */
2168 ftfont_font_format (FcPattern
*pattern
, Lisp_Object filename
)
2172 #ifdef FC_FONTFORMAT
2175 if (FcPatternGetString (pattern
, FC_FONTFORMAT
, 0, &str
) != FcResultMatch
)
2177 if (strcmp ((char *) str
, "TrueType") == 0)
2178 return intern ("truetype");
2179 if (strcmp ((char *) str
, "Type 1") == 0)
2180 return intern ("type1");
2181 if (strcmp ((char *) str
, "PCF") == 0)
2182 return intern ("pcf");
2183 if (strcmp ((char *) str
, "BDF") == 0)
2184 return intern ("bdf");
2186 #endif /* FC_FONTFORMAT */
2187 if (STRINGP (filename
))
2189 int len
= SBYTES (filename
);
2193 str
= (FcChar8
*) (SDATA (filename
) + len
- 4);
2194 if (xstrcasecmp ((char *) str
, ".ttf") == 0)
2195 return intern ("truetype");
2196 if (xstrcasecmp ((char *) str
, ".pfb") == 0)
2197 return intern ("type1");
2198 if (xstrcasecmp ((char *) str
, ".pcf") == 0)
2199 return intern ("pcf");
2200 if (xstrcasecmp ((char *) str
, ".bdf") == 0)
2201 return intern ("bdf");
2204 return intern ("unknown");
2211 DEFSYM (Qfreetype
, "freetype");
2212 DEFSYM (Qmonospace
, "monospace");
2213 DEFSYM (Qsans_serif
, "sans-serif");
2214 DEFSYM (Qserif
, "serif");
2215 DEFSYM (Qmono
, "mono");
2216 DEFSYM (Qsans
, "sans");
2217 DEFSYM (Qsans__serif
, "sans serif");
2221 staticpro (&freetype_font_cache
);
2222 freetype_font_cache
= Fcons (Qt
, Qnil
);
2224 staticpro (&ftfont_generic_family_list
);
2225 ftfont_generic_family_list
2226 = Fcons (Fcons (Qmonospace
, Qt
),
2227 Fcons (Fcons (Qsans_serif
, Qt
),
2228 Fcons (Fcons (Qsans
, Qt
), Qnil
)));
2230 staticpro (&ft_face_cache
);
2231 ft_face_cache
= Qnil
;
2233 ftfont_driver
.type
= Qfreetype
;
2234 register_font_driver (&ftfont_driver
, NULL
);
2237 /* arch-tag: 7cfa432c-33a6-4988-83d2-a82ed8604aca
2238 (do not change this comment) */