HCoop / bpt / emacs.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge from emacs-24; up to 2014-06-01T23:37:59Z!eggert@cs.ucla.edu
[bpt/emacs.git] / src / macfont.m
1 /* Font driver on Mac OSX Core text.
2 Copyright (C) 2009-2014 Free Software Foundation, Inc.
3
4 This file is part of GNU Emacs.
5
6 GNU Emacs is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
10
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
18
19 Original author: YAMAMOTO Mitsuharu
20 */
21
22 #include <config.h>
23
24 #include "lisp.h"
25 #include "dispextern.h"
26 #include "frame.h"
27 #include "blockinput.h"
28 #include "character.h"
29 #include "charset.h"
30 #include "composite.h"
31 #include "fontset.h"
32 #include "font.h"
33 #include "termchar.h"
34 #include "nsgui.h"
35 #include "nsterm.h"
36 #include "macfont.h"
37 #include "macuvs.h"
38
39 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
40
41 #include <libkern/OSByteOrder.h>
42
43 static struct font_driver macfont_driver;
44
45 /* Core Text, for Mac OS X 10.5 and later. */
46 static Lisp_Object Qmac_ct;
47
48 static double mac_ctfont_get_advance_width_for_glyph (CTFontRef, CGGlyph);
49 static CGRect mac_ctfont_get_bounding_rect_for_glyph (CTFontRef, CGGlyph);
50 static CFArrayRef mac_ctfont_create_available_families (void);
51 static Boolean mac_ctfont_equal_in_postscript_name (CTFontRef, CTFontRef);
52 static CTLineRef mac_ctfont_create_line_with_string_and_font (CFStringRef,
53 CTFontRef);
54 static CFComparisonResult mac_font_family_compare (const void *,
55 const void *, void *);
56 static Boolean mac_ctfont_descriptor_supports_languages (CTFontDescriptorRef,
57 CFArrayRef);
58 static CFStringRef mac_ctfont_create_preferred_family_for_attributes (CFDictionaryRef);
59 static CFIndex mac_ctfont_shape (CTFontRef, CFStringRef,
60 struct mac_glyph_layout *, CFIndex);
61 static CFArrayRef
62 mac_font_copy_default_descriptors_for_language (CFStringRef language);
63
64 static CFStringRef
65 mac_font_copy_default_name_for_charset_and_languages (CFCharacterSetRef charset,
66 CFArrayRef languages);
67
68 #if USE_CT_GLYPH_INFO
69 static CGGlyph mac_ctfont_get_glyph_for_cid (CTFontRef,
70 CTCharacterCollection,
71 CGFontIndex);
72 #endif
73
74 /* The font property key specifying the font design destination. The
75 value is an unsigned integer code: 0 for WYSIWYG, and 1 for Video
76 text. (See the documentation of X Logical Font Description
77 Conventions.) In the Mac font driver, 1 means the screen font is
78 used for calculating some glyph metrics. You can see the
79 difference with Monaco 8pt or 9pt, for example. */
80 static Lisp_Object QCdestination;
81
82 /* The boolean-valued font property key specifying the use of
83 leading. */
84 static Lisp_Object QCminspace;
85
86 struct macfont_metrics;
87
88 /* The actual structure for Mac font that can be cast to struct font. */
89
90 struct macfont_info
91 {
92 struct font font;
93 FontRef macfont;
94 CGFontRef cgfont;
95 ScreenFontRef screen_font;
96 struct macfont_cache *cache;
97 struct macfont_metrics **metrics;
98 short metrics_nrows;
99 bool_bf synthetic_italic_p : 1;
100 bool_bf synthetic_bold_p : 1;
101 unsigned spacing : 2;
102 unsigned antialias : 2;
103 bool_bf color_bitmap_p : 1;
104 };
105
106 /* Values for the `spacing' member in `struct macfont_info'. */
107
108 enum
109 {
110 MACFONT_SPACING_PROPORTIONAL,
111 MACFONT_SPACING_MONO,
112 MACFONT_SPACING_SYNTHETIC_MONO,
113 };
114
115 /* Values for the `antialias' member in `struct macfont_info'. */
116
117 enum
118 {
119 MACFONT_ANTIALIAS_DEFAULT,
120 MACFONT_ANTIALIAS_OFF,
121 MACFONT_ANTIALIAS_ON,
122 };
123
124 enum {FONT_SLANT_SYNTHETIC_ITALIC = 200}; /* FC_SLANT_ITALIC + 100 */
125 enum {FONT_WEIGHT_SYNTHETIC_BOLD = 200}; /* FC_WEIGHT_BOLD */
126 enum {FONT_SPACING_SYNTHETIC_MONO = FONT_SPACING_MONO};
127
128 static const CGAffineTransform synthetic_italic_atfm = {1, 0, 0.25, 1, 0, 0};
129 static const CGFloat synthetic_bold_factor = 0.024;
130
131 static Boolean cfnumber_get_font_symbolic_traits_value (CFNumberRef,
132 FontSymbolicTraits *);
133 static void macfont_store_descriptor_attributes (FontDescriptorRef,
134 Lisp_Object);
135 static Lisp_Object macfont_descriptor_entity (FontDescriptorRef,
136 Lisp_Object,
137 FontSymbolicTraits);
138 static CFStringRef macfont_create_family_with_symbol (Lisp_Object);
139 static int macfont_glyph_extents (struct font *, CGGlyph,
140 struct font_metrics *, CGFloat *, int);
141 static CFMutableDictionaryRef macfont_create_attributes_with_spec (Lisp_Object);
142 static Boolean macfont_supports_charset_and_languages_p (FontDescriptorRef,
143 CFCharacterSetRef,
144 Lisp_Object,
145 CFArrayRef);
146 static CFIndex macfont_closest_traits_index (CFArrayRef,
147 FontSymbolicTraits);
148 static CFDataRef mac_font_copy_uvs_table (FontRef);
149 static void mac_font_get_glyphs_for_variants (CFDataRef, UTF32Char,
150 const UTF32Char [],
151 CGGlyph [], CFIndex);
152
153 /* From CFData to a lisp string. Always returns a unibyte string. */
154
155 static Lisp_Object
156 cfdata_to_lisp (CFDataRef data)
157 {
158 CFIndex len = CFDataGetLength (data);
159 Lisp_Object result = make_uninit_string (len);
160
161 CFDataGetBytes (data, CFRangeMake (0, len), SDATA (result));
162
163 return result;
164 }
165
166
167
168 /* From CFString to a lisp string. Returns a unibyte string
169 containing a UTF-8 byte sequence. */
170
171 static Lisp_Object
172 cfstring_to_lisp_nodecode (CFStringRef string)
173 {
174 Lisp_Object result = Qnil;
175 CFDataRef data;
176 const char *s = CFStringGetCStringPtr (string, kCFStringEncodingUTF8);
177
178 if (s)
179 {
180 CFIndex i, length = CFStringGetLength (string);
181
182 for (i = 0; i < length; i++)
183 if (CFStringGetCharacterAtIndex (string, i) == 0)
184 break;
185
186 if (i == length)
187 return make_unibyte_string (s, strlen (s));
188 }
189
190 data = CFStringCreateExternalRepresentation (NULL, string,
191 kCFStringEncodingUTF8, '?');
192 if (data)
193 {
194 result = cfdata_to_lisp (data);
195 CFRelease (data);
196 }
197
198 return result;
199 }
200
201 /* Lisp string containing a UTF-8 byte sequence to CFString. Unlike
202 cfstring_create_with_utf8_cstring, this function preserves NUL
203 characters. */
204
205 static CFStringRef
206 cfstring_create_with_string_noencode (Lisp_Object s)
207 {
208 CFStringRef string = CFStringCreateWithBytes (NULL, SDATA (s), SBYTES (s),
209 kCFStringEncodingUTF8, false);
210
211 if (string == NULL)
212 /* Failed to interpret as UTF 8. Fall back on Mac Roman. */
213 string = CFStringCreateWithBytes (NULL, SDATA (s), SBYTES (s),
214 kCFStringEncodingMacRoman, false);
215
216 return string;
217 }
218
219 static CGFloat
220 mac_screen_font_get_advance_width_for_glyph (ScreenFontRef font, CGGlyph glyph)
221 {
222 NSSize advancement = [(NSFont *)font advancementForGlyph:glyph];
223
224 return advancement.width;
225 }
226
227 static CGGlyph
228 mac_font_get_glyph_for_cid (FontRef font, CharacterCollection collection,
229 CGFontIndex cid)
230 {
231 #if USE_CT_GLYPH_INFO
232 return mac_ctfont_get_glyph_for_cid ((CTFontRef) font, collection, cid);
233 #else
234 {
235 CGGlyph result = kCGFontIndexInvalid;
236 NSFont *nsFont = (NSFont *) font;
237 unichar characters[] = {0xfffd};
238 NSString *string =
239 [NSString stringWithCharacters:characters
240 length:ARRAYELTS (characters)];
241 NSGlyphInfo *glyphInfo =
242 [NSGlyphInfo glyphInfoWithCharacterIdentifier:cid
243 collection:collection
244 baseString:string];
245 NSDictionary *attributes =
246 [NSDictionary dictionaryWithObjectsAndKeys:nsFont,NSFontAttributeName,
247 glyphInfo,NSGlyphInfoAttributeName,nil];
248 NSTextStorage *textStorage =
249 [[NSTextStorage alloc] initWithString:string
250 attributes:attributes];
251 NSLayoutManager *layoutManager = [[NSLayoutManager alloc] init];
252 NSTextContainer *textContainer = [[NSTextContainer alloc] init];
253 NSFont *fontInTextStorage;
254
255 [layoutManager addTextContainer:textContainer];
256 [textContainer release];
257 [textStorage addLayoutManager:layoutManager];
258 [layoutManager release];
259
260 /* Force layout. */
261 (void) [layoutManager glyphRangeForTextContainer:textContainer];
262
263 fontInTextStorage = [textStorage attribute:NSFontAttributeName atIndex:0
264 effectiveRange:NULL];
265 if (fontInTextStorage == nsFont
266 || [[fontInTextStorage fontName] isEqualToString:[nsFont fontName]])
267 {
268 NSGlyph glyph = [layoutManager glyphAtIndex:0];
269
270 if (glyph < [nsFont numberOfGlyphs])
271 result = glyph;
272 }
273
274 [textStorage release];
275
276 return result;
277 }
278 }
279 #endif
280
281 static ScreenFontRef
282 mac_screen_font_create_with_name (CFStringRef name, CGFloat size)
283 {
284 NSFont *result, *font;
285
286 font = [NSFont fontWithName:((NSString *) name) size:size];
287 result = [font screenFont];
288
289 return (ScreenFontRef)[result retain];
290 }
291
292
293 static Boolean
294 mac_screen_font_get_metrics (ScreenFontRef font, CGFloat *ascent,
295 CGFloat *descent, CGFloat *leading)
296 {
297 NSFont *nsFont = [(NSFont *)font printerFont];
298 NSTextStorage *textStorage;
299 NSLayoutManager *layoutManager;
300 NSTextContainer *textContainer;
301 NSRect usedRect;
302 NSPoint spaceLocation;
303 CGFloat descender;
304
305 textStorage = [[NSTextStorage alloc] initWithString:@" "];
306 layoutManager = [[NSLayoutManager alloc] init];
307 textContainer = [[NSTextContainer alloc] init];
308
309 [textStorage setFont:nsFont];
310 [textContainer setLineFragmentPadding:0];
311 [layoutManager setUsesScreenFonts:YES];
312
313 [layoutManager addTextContainer:textContainer];
314 [textContainer release];
315 [textStorage addLayoutManager:layoutManager];
316 [layoutManager release];
317
318 if (!(textStorage && layoutManager && textContainer))
319 {
320 [textStorage release];
321
322 return false;
323 }
324
325 usedRect = [layoutManager lineFragmentUsedRectForGlyphAtIndex:0
326 effectiveRange:NULL];
327 spaceLocation = [layoutManager locationForGlyphAtIndex:0];
328 [textStorage release];
329
330 *ascent = spaceLocation.y;
331 *descent = NSHeight (usedRect) - spaceLocation.y;
332 *leading = 0;
333 descender = [nsFont descender];
334 if (- descender < *descent)
335 {
336 *leading = *descent + descender;
337 *descent = - descender;
338 }
339
340 return true;
341 }
342
343 static CFIndex
344 mac_font_shape_1 (NSFont *font, NSString *string,
345 struct mac_glyph_layout *glyph_layouts, CFIndex glyph_len,
346 BOOL screen_font_p)
347 {
348 NSUInteger i;
349 CFIndex result = 0;
350 NSTextStorage *textStorage;
351 NSLayoutManager *layoutManager;
352 NSTextContainer *textContainer;
353 NSUInteger stringLength;
354 NSPoint spaceLocation;
355 NSUInteger used, numberOfGlyphs;
356
357 textStorage = [[NSTextStorage alloc] initWithString:string];
358 layoutManager = [[NSLayoutManager alloc] init];
359 textContainer = [[NSTextContainer alloc] init];
360
361 /* Append a trailing space to measure baseline position. */
362 [textStorage appendAttributedString:([[[NSAttributedString alloc]
363 initWithString:@" "] autorelease])];
364 [textStorage setFont:font];
365 [textContainer setLineFragmentPadding:0];
366 [layoutManager setUsesScreenFonts:screen_font_p];
367
368 [layoutManager addTextContainer:textContainer];
369 [textContainer release];
370 [textStorage addLayoutManager:layoutManager];
371 [layoutManager release];
372
373 if (!(textStorage && layoutManager && textContainer))
374 {
375 [textStorage release];
376
377 return 0;
378 }
379
380 stringLength = [string length];
381
382 /* Force layout. */
383 (void) [layoutManager glyphRangeForTextContainer:textContainer];
384
385 spaceLocation = [layoutManager locationForGlyphAtIndex:stringLength];
386
387 /* Remove the appended trailing space because otherwise it may
388 generate a wrong result for a right-to-left text. */
389 [textStorage beginEditing];
390 [textStorage deleteCharactersInRange:(NSMakeRange (stringLength, 1))];
391 [textStorage endEditing];
392 (void) [layoutManager glyphRangeForTextContainer:textContainer];
393
394 i = 0;
395 while (i < stringLength)
396 {
397 NSRange range;
398 NSFont *fontInTextStorage =
399 [textStorage attribute:NSFontAttributeName atIndex:i
400 longestEffectiveRange:&range
401 inRange:(NSMakeRange (0, stringLength))];
402
403 if (!(fontInTextStorage == font
404 || [[fontInTextStorage fontName] isEqualToString:[font fontName]]))
405 break;
406 i = NSMaxRange (range);
407 }
408 if (i < stringLength)
409 /* Make the test `used <= glyph_len' below fail if textStorage
410 contained some fonts other than the specified one. */
411 used = glyph_len + 1;
412 else
413 {
414 NSRange range = NSMakeRange (0, stringLength);
415
416 range = [layoutManager glyphRangeForCharacterRange:range
417 actualCharacterRange:NULL];
418 numberOfGlyphs = NSMaxRange (range);
419 used = numberOfGlyphs;
420 for (i = 0; i < numberOfGlyphs; i++)
421 if ([layoutManager notShownAttributeForGlyphAtIndex:i])
422 used--;
423 }
424
425 if (0 < used && used <= glyph_len)
426 {
427 NSUInteger glyphIndex, prevGlyphIndex;
428 unsigned char bidiLevel;
429 NSUInteger *permutation;
430 NSRange compRange, range;
431 CGFloat totalAdvance;
432
433 glyphIndex = 0;
434 while ([layoutManager notShownAttributeForGlyphAtIndex:glyphIndex])
435 glyphIndex++;
436
437 /* For now we assume the direction is not changed within the
438 string. */
439 [layoutManager getGlyphsInRange:(NSMakeRange (glyphIndex, 1))
440 glyphs:NULL characterIndexes:NULL
441 glyphInscriptions:NULL elasticBits:NULL
442 bidiLevels:&bidiLevel];
443 if (bidiLevel & 1)
444 permutation = xmalloc (sizeof (NSUInteger) * used);
445 else
446 permutation = NULL;
447
448 #define RIGHT_TO_LEFT_P permutation
449
450 /* Fill the `comp_range' member of struct mac_glyph_layout, and
451 setup a permutation for right-to-left text. */
452 compRange = NSMakeRange (0, 0);
453 for (range = NSMakeRange (0, 0); NSMaxRange (range) < used;
454 range.length++)
455 {
456 struct mac_glyph_layout *gl = glyph_layouts + NSMaxRange (range);
457 NSUInteger characterIndex =
458 [layoutManager characterIndexForGlyphAtIndex:glyphIndex];
459
460 gl->string_index = characterIndex;
461
462 if (characterIndex >= NSMaxRange (compRange))
463 {
464 compRange.location = NSMaxRange (compRange);
465 do
466 {
467 NSRange characterRange =
468 [string
469 rangeOfComposedCharacterSequenceAtIndex:characterIndex];
470
471 compRange.length =
472 NSMaxRange (characterRange) - compRange.location;
473 [layoutManager glyphRangeForCharacterRange:compRange
474 actualCharacterRange:&characterRange];
475 characterIndex = NSMaxRange (characterRange) - 1;
476 }
477 while (characterIndex >= NSMaxRange (compRange));
478
479 if (RIGHT_TO_LEFT_P)
480 for (i = 0; i < range.length; i++)
481 permutation[range.location + i] = NSMaxRange (range) - i - 1;
482
483 range = NSMakeRange (NSMaxRange (range), 0);
484 }
485
486 gl->comp_range.location = compRange.location;
487 gl->comp_range.length = compRange.length;
488
489 while (++glyphIndex < numberOfGlyphs)
490 if (![layoutManager notShownAttributeForGlyphAtIndex:glyphIndex])
491 break;
492 }
493 if (RIGHT_TO_LEFT_P)
494 for (i = 0; i < range.length; i++)
495 permutation[range.location + i] = NSMaxRange (range) - i - 1;
496
497 /* Then fill the remaining members. */
498 glyphIndex = prevGlyphIndex = 0;
499 while ([layoutManager notShownAttributeForGlyphAtIndex:glyphIndex])
500 glyphIndex++;
501
502 if (!RIGHT_TO_LEFT_P)
503 totalAdvance = 0;
504 else
505 {
506 NSUInteger nrects;
507 NSRect *glyphRects =
508 [layoutManager
509 rectArrayForGlyphRange:(NSMakeRange (0, numberOfGlyphs))
510 withinSelectedGlyphRange:(NSMakeRange (NSNotFound, 0))
511 inTextContainer:textContainer rectCount:&nrects];
512
513 totalAdvance = NSMaxX (glyphRects[0]);
514 }
515
516 for (i = 0; i < used; i++)
517 {
518 struct mac_glyph_layout *gl;
519 NSPoint location;
520 NSUInteger nextGlyphIndex;
521 NSRange glyphRange;
522 NSRect *glyphRects;
523 NSUInteger nrects;
524
525 if (!RIGHT_TO_LEFT_P)
526 gl = glyph_layouts + i;
527 else
528 {
529 NSUInteger dest = permutation[i];
530
531 gl = glyph_layouts + dest;
532 if (i < dest)
533 {
534 CFIndex tmp = gl->string_index;
535
536 gl->string_index = glyph_layouts[i].string_index;
537 glyph_layouts[i].string_index = tmp;
538 }
539 }
540 gl->glyph_id = [layoutManager glyphAtIndex:glyphIndex];
541
542 location = [layoutManager locationForGlyphAtIndex:glyphIndex];
543 gl->baseline_delta = spaceLocation.y - location.y;
544
545 for (nextGlyphIndex = glyphIndex + 1; nextGlyphIndex < numberOfGlyphs;
546 nextGlyphIndex++)
547 if (![layoutManager
548 notShownAttributeForGlyphAtIndex:nextGlyphIndex])
549 break;
550
551 if (!RIGHT_TO_LEFT_P)
552 {
553 CGFloat maxX;
554
555 if (prevGlyphIndex == 0)
556 glyphRange = NSMakeRange (0, nextGlyphIndex);
557 else
558 glyphRange = NSMakeRange (glyphIndex,
559 nextGlyphIndex - glyphIndex);
560 glyphRects =
561 [layoutManager
562 rectArrayForGlyphRange:glyphRange
563 withinSelectedGlyphRange:(NSMakeRange (NSNotFound, 0))
564 inTextContainer:textContainer rectCount:&nrects];
565 maxX = max (NSMaxX (glyphRects[0]), totalAdvance);
566 gl->advance_delta = location.x - totalAdvance;
567 gl->advance = maxX - totalAdvance;
568 totalAdvance = maxX;
569 }
570 else
571 {
572 CGFloat minX;
573
574 if (nextGlyphIndex == numberOfGlyphs)
575 glyphRange = NSMakeRange (prevGlyphIndex,
576 numberOfGlyphs - prevGlyphIndex);
577 else
578 glyphRange = NSMakeRange (prevGlyphIndex,
579 glyphIndex + 1 - prevGlyphIndex);
580 glyphRects =
581 [layoutManager
582 rectArrayForGlyphRange:glyphRange
583 withinSelectedGlyphRange:(NSMakeRange (NSNotFound, 0))
584 inTextContainer:textContainer rectCount:&nrects];
585 minX = min (NSMinX (glyphRects[0]), totalAdvance);
586 gl->advance = totalAdvance - minX;
587 totalAdvance = minX;
588 gl->advance_delta = location.x - totalAdvance;
589 }
590
591 prevGlyphIndex = glyphIndex + 1;
592 glyphIndex = nextGlyphIndex;
593 }
594
595 if (RIGHT_TO_LEFT_P)
596 xfree (permutation);
597
598 #undef RIGHT_TO_LEFT_P
599
600 result = used;
601 }
602 [textStorage release];
603
604 return result;
605 }
606
607 static CFIndex
608 mac_screen_font_shape (ScreenFontRef font, CFStringRef string,
609 struct mac_glyph_layout *glyph_layouts,
610 CFIndex glyph_len)
611 {
612 return mac_font_shape_1 ([(NSFont *)font printerFont],
613 (NSString *) string,
614 glyph_layouts, glyph_len, YES);
615 }
616
617 static CGColorRef
618 get_cgcolor(unsigned long idx, struct frame *f)
619 {
620 NSColor *nsColor = ns_lookup_indexed_color (idx, f);
621 [nsColor set];
622 CGColorSpaceRef colorSpace = [[nsColor colorSpace] CGColorSpace];
623 NSInteger noc = [nsColor numberOfComponents];
624 CGFloat *components = xmalloc (sizeof(CGFloat)*(1+noc));
625 CGColorRef cgColor;
626
627 [nsColor getComponents: components];
628 cgColor = CGColorCreate (colorSpace, components);
629 xfree (components);
630 return cgColor;
631 }
632
633 #define CG_SET_FILL_COLOR_WITH_FACE_FOREGROUND(context, face, f) \
634 do { \
635 CGColorRef refcol_ = get_cgcolor (NS_FACE_FOREGROUND (face), f); \
636 CGContextSetFillColorWithColor (context, refcol_) ; \
637 CGColorRelease (refcol_); \
638 } while (0)
639 #define CG_SET_FILL_COLOR_WITH_FACE_BACKGROUND(context, face, f) \
640 do { \
641 CGColorRef refcol_ = get_cgcolor (NS_FACE_BACKGROUND (face), f); \
642 CGContextSetFillColorWithColor (context, refcol_); \
643 CGColorRelease (refcol_); \
644 } while (0)
645 #define CG_SET_STROKE_COLOR_WITH_FACE_FOREGROUND(context, face, f) \
646 do { \
647 CGColorRef refcol_ = get_cgcolor (NS_FACE_FOREGROUND (face), f); \
648 CGContextSetStrokeColorWithColor (context, refcol_); \
649 CGColorRelease (refcol_); \
650 } while (0)
651
652 \f
653 /* Mac font driver. */
654
655 static struct
656 {
657 /* registry name */
658 const char *name;
659 /* characters to distinguish the charset from the others */
660 int uniquifier[6];
661 /* additional constraint by language */
662 CFStringRef lang;
663 /* set on demand */
664 CFCharacterSetRef cf_charset;
665 CFStringRef cf_charset_string;
666 } cf_charset_table[] =
667 { { "iso8859-1", { 0x00A0, 0x00A1, 0x00B4, 0x00BC, 0x00D0 } },
668 { "iso8859-2", { 0x00A0, 0x010E }},
669 { "iso8859-3", { 0x00A0, 0x0108 }},
670 { "iso8859-4", { 0x00A0, 0x00AF, 0x0128, 0x0156, 0x02C7 }},
671 { "iso8859-5", { 0x00A0, 0x0401 }},
672 { "iso8859-6", { 0x00A0, 0x060C }},
673 { "iso8859-7", { 0x00A0, 0x0384 }},
674 { "iso8859-8", { 0x00A0, 0x05D0 }},
675 { "iso8859-9", { 0x00A0, 0x00A1, 0x00BC, 0x011E }},
676 { "iso8859-10", { 0x00A0, 0x00D0, 0x0128, 0x2015 }},
677 { "iso8859-11", { 0x00A0, 0x0E01 }},
678 { "iso8859-13", { 0x00A0, 0x201C }},
679 { "iso8859-14", { 0x00A0, 0x0174 }},
680 { "iso8859-15", { 0x00A0, 0x00A1, 0x00D0, 0x0152 }},
681 { "iso8859-16", { 0x00A0, 0x0218}},
682 { "gb2312.1980-0", { 0x4E13 }, CFSTR ("zh-Hans")},
683 { "big5-0", { /* 0xF6B1 in ftfont.c */ 0x4EDC }, CFSTR ("zh-Hant") },
684 { "jisx0208.1983-0", { 0x4E55 }, CFSTR ("ja")},
685 { "ksc5601.1987-0", { 0xAC00 }, CFSTR ("ko")},
686 { "cns11643.1992-1", { 0xFE32 }, CFSTR ("zh-Hant")},
687 { "cns11643.1992-2", { 0x4E33, 0x7934 }},
688 { "cns11643.1992-3", { 0x201A9 }},
689 { "cns11643.1992-4", { 0x20057 }},
690 { "cns11643.1992-5", { 0x20000 }},
691 { "cns11643.1992-6", { 0x20003 }},
692 { "cns11643.1992-7", { 0x20055 }},
693 { "gbk-0", { 0x4E06 }, CFSTR ("zh-Hans")},
694 { "jisx0212.1990-0", { 0x4E44 }},
695 { "jisx0213.2000-1", { 0xFA10 }, CFSTR ("ja")},
696 { "jisx0213.2000-2", { 0xFA49 }},
697 { "jisx0213.2004-1", { 0x20B9F }},
698 { "viscii1.1-1", { 0x1EA0, 0x1EAE, 0x1ED2 }, CFSTR ("vi")},
699 { "tis620.2529-1", { 0x0E01 }, CFSTR ("th")},
700 { "windows-1251", { 0x0401, 0x0490 }, CFSTR ("ru")},
701 { "koi8-r", { 0x0401, 0x2219 }, CFSTR ("ru")},
702 { "mulelao-1", { 0x0E81 }, CFSTR ("lo")},
703 { "unicode-sip", { 0x20000 }},
704 { NULL }
705 };
706
707 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1080
708 static const struct
709 {
710 CFStringRef language;
711 CFStringRef font_names[3];
712 } macfont_language_default_font_names[] = {
713 { CFSTR ("ja"), { CFSTR ("HiraKakuProN-W3"), /* 10.5 - 10.9 */
714 CFSTR ("HiraKakuPro-W3"), /* 10.4 */
715 NULL }},
716 { CFSTR ("ko"), { CFSTR ("AppleSDGothicNeo-Regular"), /* 10.8 - 10.9 */
717 CFSTR ("AppleGothic"), /* 10.4 - 10.7 */
718 NULL }},
719 { CFSTR ("zh-Hans"), { CFSTR ("STHeitiSC-Light"), /* 10.6 - 10.9 */
720 CFSTR ("STXihei"), /* 10.4 - 10.5 */
721 NULL }},
722 { CFSTR ("zh-Hant"), { CFSTR ("STHeitiTC-Light"), /* 10.6 - 10.9 */
723 CFSTR ("LiHeiPro"), /* 10.4 - 10.5 */
724 NULL }},
725 { NULL }
726 };
727 #endif
728
729 static CGFloat macfont_antialias_threshold;
730
731 static void
732 macfont_update_antialias_threshold (void)
733 {
734 int threshold;
735 Boolean valid_p;
736
737 threshold =
738 CFPreferencesGetAppIntegerValue (CFSTR ("AppleAntiAliasingThreshold"),
739 kCFPreferencesCurrentApplication,
740 &valid_p);
741 if (valid_p)
742 macfont_antialias_threshold = threshold;
743 }
744
745 static inline Lisp_Object
746 macfont_intern_prop_cfstring (CFStringRef cfstring)
747 {
748 Lisp_Object string = cfstring_to_lisp_nodecode (cfstring);
749
750 return font_intern_prop (SSDATA (string), SBYTES (string), 1);
751 }
752
753 static inline CFIndex
754 macfont_store_utf32char_to_unichars (UTF32Char c, UniChar *unichars)
755 {
756 if (c < 0x10000)
757 {
758 unichars[0] = c;
759
760 return 1;
761 }
762 else
763 {
764 c -= 0x10000;
765 unichars[0] = (c >> 10) + 0xD800;
766 unichars[1] = (c & 0x3FF) + 0xDC00;
767
768 return 2;
769 }
770 }
771
772 static Boolean
773 cfnumber_get_font_symbolic_traits_value (CFNumberRef number,
774 FontSymbolicTraits *sym_traits)
775 {
776 SInt64 sint64_value;
777
778 /* Getting symbolic traits with kCFNumberSInt32Type is lossy on Mac
779 OS X 10.6 when the value is greater than or equal to 1 << 31. */
780 if (CFNumberGetValue (number, kCFNumberSInt64Type, &sint64_value))
781 {
782 *sym_traits = (FontSymbolicTraits) sint64_value;
783
784 return true;
785 }
786
787 return false;
788 }
789
790 static void
791 macfont_store_descriptor_attributes (FontDescriptorRef desc,
792 Lisp_Object spec_or_entity)
793 {
794 CFStringRef str;
795 CFDictionaryRef dict;
796 CFNumberRef num;
797 CGFloat floatval;
798
799 str = mac_font_descriptor_copy_attribute (desc,
800 MAC_FONT_FAMILY_NAME_ATTRIBUTE);
801 if (str)
802 {
803 ASET (spec_or_entity, FONT_FAMILY_INDEX,
804 macfont_intern_prop_cfstring (str));
805 CFRelease (str);
806 }
807 dict = mac_font_descriptor_copy_attribute (desc, MAC_FONT_TRAITS_ATTRIBUTE);
808 if (dict)
809 {
810 struct {
811 enum font_property_index index;
812 CFStringRef trait;
813 CGPoint points[6];
814 } numeric_traits[] =
815 {{FONT_WEIGHT_INDEX, MAC_FONT_WEIGHT_TRAIT,
816 {{-0.4, 50}, /* light */
817 {-0.24, 87.5}, /* (semi-light + normal) / 2 */
818 {0, 100}, /* normal */
819 {0.24, 140}, /* (semi-bold + normal) / 2 */
820 {0.4, 200}, /* bold */
821 {CGFLOAT_MAX, CGFLOAT_MAX}}},
822 {FONT_SLANT_INDEX, MAC_FONT_SLANT_TRAIT,
823 {{0, 100}, {0.1, 200}, {CGFLOAT_MAX, CGFLOAT_MAX}}},
824 {FONT_WIDTH_INDEX, MAC_FONT_WIDTH_TRAIT,
825 {{0, 100}, {1, 200}, {CGFLOAT_MAX, CGFLOAT_MAX}}}};
826 int i;
827
828 for (i = 0; i < ARRAYELTS (numeric_traits); i++)
829 {
830 num = CFDictionaryGetValue (dict, numeric_traits[i].trait);
831 if (num && CFNumberGetValue (num, kCFNumberCGFloatType, &floatval))
832 {
833 CGPoint *point = numeric_traits[i].points;
834
835 while (point->x < floatval)
836 point++;
837 if (point == numeric_traits[i].points)
838 point++;
839 else if (point->x == CGFLOAT_MAX)
840 point--;
841 floatval = (point - 1)->y + ((floatval - (point - 1)->x)
842 * ((point->y - (point - 1)->y)
843 / (point->x - (point - 1)->x)));
844 FONT_SET_STYLE (spec_or_entity, numeric_traits[i].index,
845 make_number (lround (floatval)));
846 }
847 }
848
849 num = CFDictionaryGetValue (dict, MAC_FONT_SYMBOLIC_TRAIT);
850 if (num)
851 {
852 FontSymbolicTraits sym_traits;
853 int spacing;
854
855 cfnumber_get_font_symbolic_traits_value (num, &sym_traits);
856 spacing = (sym_traits & MAC_FONT_TRAIT_MONO_SPACE
857 ? FONT_SPACING_MONO : FONT_SPACING_PROPORTIONAL);
858 ASET (spec_or_entity, FONT_SPACING_INDEX, make_number (spacing));
859 }
860
861 CFRelease (dict);
862 }
863 num = mac_font_descriptor_copy_attribute (desc, MAC_FONT_SIZE_ATTRIBUTE);
864 if (num && CFNumberGetValue (num, kCFNumberCGFloatType, &floatval))
865 ASET (spec_or_entity, FONT_SIZE_INDEX, make_number (floatval));
866 else
867 ASET (spec_or_entity, FONT_SIZE_INDEX, make_number (0));
868 if (num)
869 CFRelease (num);
870 }
871
872 static Lisp_Object
873 macfont_descriptor_entity (FontDescriptorRef desc, Lisp_Object extra,
874 FontSymbolicTraits synth_sym_traits)
875 {
876 Lisp_Object entity;
877 CFDictionaryRef dict;
878 FontSymbolicTraits sym_traits = 0;
879 CFStringRef name;
880
881 entity = font_make_entity ();
882
883 ASET (entity, FONT_TYPE_INDEX, macfont_driver.type);
884 ASET (entity, FONT_REGISTRY_INDEX, Qiso10646_1);
885
886 macfont_store_descriptor_attributes (desc, entity);
887
888 dict = mac_font_descriptor_copy_attribute (desc, MAC_FONT_TRAITS_ATTRIBUTE);
889 if (dict)
890 {
891 CFNumberRef num = CFDictionaryGetValue (dict, MAC_FONT_SYMBOLIC_TRAIT);
892
893 if (num)
894 cfnumber_get_font_symbolic_traits_value (num, &sym_traits);
895 CFRelease (dict);
896 }
897 if (EQ (AREF (entity, FONT_SIZE_INDEX), make_number (0)))
898 ASET (entity, FONT_AVGWIDTH_INDEX, make_number (0));
899 ASET (entity, FONT_EXTRA_INDEX, Fcopy_sequence (extra));
900 name = mac_font_descriptor_copy_attribute (desc, MAC_FONT_NAME_ATTRIBUTE);
901 font_put_extra (entity, QCfont_entity,
902 make_save_ptr_int ((void *) name, sym_traits));
903 if (synth_sym_traits & MAC_FONT_TRAIT_ITALIC)
904 FONT_SET_STYLE (entity, FONT_SLANT_INDEX,
905 make_number (FONT_SLANT_SYNTHETIC_ITALIC));
906 if (synth_sym_traits & MAC_FONT_TRAIT_BOLD)
907 FONT_SET_STYLE (entity, FONT_WEIGHT_INDEX,
908 make_number (FONT_WEIGHT_SYNTHETIC_BOLD));
909 if (synth_sym_traits & MAC_FONT_TRAIT_MONO_SPACE)
910 ASET (entity, FONT_SPACING_INDEX,
911 make_number (FONT_SPACING_SYNTHETIC_MONO));
912
913 return entity;
914 }
915
916 static CFStringRef
917 macfont_create_family_with_symbol (Lisp_Object symbol)
918 {
919 static CFArrayRef families = NULL;
920 CFStringRef result = NULL, family_name;
921 int using_cache_p = 1;
922 CFComparatorFunction family_name_comparator;
923
924 family_name = cfstring_create_with_string_noencode (SYMBOL_NAME (symbol));
925 if (family_name == NULL)
926 return NULL;
927
928 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
929 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
930 if (CTFontManagerCompareFontFamilyNames != NULL)
931 #endif
932 {
933 family_name_comparator = CTFontManagerCompareFontFamilyNames;
934 }
935 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
936 else /* CTFontManagerCompareFontFamilyNames == NULL */
937 #endif
938 #endif /* MAC_OS_X_VERSION_MAX_ALLOWED >= 1060 */
939 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
940 {
941 family_name_comparator = mac_font_family_compare;
942 }
943 #endif
944
945 if ((*family_name_comparator) (family_name, CFSTR ("LastResort"), NULL)
946 == kCFCompareEqualTo)
947 result = CFSTR ("LastResort");
948 else
949 while (1)
950 {
951 CFIndex i, count;
952
953 if (families == NULL)
954 {
955 families = mac_font_create_available_families ();
956 using_cache_p = 0;
957 if (families == NULL)
958 break;
959 }
960
961 count = CFArrayGetCount (families);
962 i = CFArrayBSearchValues (families, CFRangeMake (0, count),
963 (const void *) family_name,
964 family_name_comparator, NULL);
965 if (i < count)
966 {
967 CFStringRef name = CFArrayGetValueAtIndex (families, i);
968
969 if ((*family_name_comparator) (name, family_name, NULL)
970 == kCFCompareEqualTo)
971 result = CFRetain (name);
972 }
973
974 if (result || !using_cache_p)
975 break;
976 else
977 {
978 CFRelease (families);
979 families = NULL;
980 }
981 }
982
983 CFRelease (family_name);
984
985 return result;
986 }
987
988 #define WIDTH_FRAC_BITS (4)
989 #define WIDTH_FRAC_SCALE (2 * ((1 << (WIDTH_FRAC_BITS - 1)) - 1))
990
991 struct macfont_metrics
992 {
993 unsigned char lbearing_low, rbearing_low;
994 signed lbearing_high : 4, rbearing_high : 4;
995 unsigned char ascent_low, descent_low;
996 signed ascent_high : 4, descent_high : 4;
997
998 /* These two members are used for fixed-point representation of
999 glyph width. The `width_int' member is an integer that is
1000 closest to the width. The `width_frac' member is the fractional
1001 adjustment representing a value in [-.5, .5], multiplied by
1002 WIDTH_FRAC_SCALE. For synthetic monospace fonts, they represent
1003 the advance delta for centering instead of the glyph width. */
1004 signed width_frac : WIDTH_FRAC_BITS, width_int : 16 - WIDTH_FRAC_BITS;
1005 };
1006
1007 #define METRICS_VALUE(metrics, member) \
1008 (((metrics)->member##_high << 8) | (metrics)->member##_low)
1009 #define METRICS_SET_VALUE(metrics, member, value) \
1010 do {short tmp = (value); (metrics)->member##_low = tmp & 0xff; \
1011 (metrics)->member##_high = tmp >> 8;} while (0)
1012
1013 enum metrics_status
1014 {
1015 METRICS_INVALID = -1, /* metrics entry is invalid */
1016 METRICS_WIDTH_VALID = -2 /* width is valid but others are invalid */
1017 };
1018
1019 #define METRICS_STATUS(metrics) \
1020 (METRICS_VALUE (metrics, ascent) + METRICS_VALUE (metrics, descent))
1021 #define METRICS_SET_STATUS(metrics, status) \
1022 do {METRICS_SET_VALUE (metrics, ascent, 0); \
1023 METRICS_SET_VALUE (metrics, descent, status);} while (0)
1024
1025 #define METRICS_NCOLS_PER_ROW (128)
1026 #define LCD_FONT_SMOOTHING_LEFT_MARGIN (0.396f)
1027 #define LCD_FONT_SMOOTHING_RIGHT_MARGIN (0.396f)
1028
1029 static int
1030 macfont_glyph_extents (struct font *font, CGGlyph glyph,
1031 struct font_metrics *metrics, CGFloat *advance_delta,
1032 int force_integral_p)
1033 {
1034 struct macfont_info *macfont_info = (struct macfont_info *) font;
1035 FontRef macfont = macfont_info->macfont;
1036 int row, col;
1037 struct macfont_metrics *cache;
1038 int width;
1039
1040 row = glyph / METRICS_NCOLS_PER_ROW;
1041 col = glyph % METRICS_NCOLS_PER_ROW;
1042 if (row >= macfont_info->metrics_nrows)
1043 {
1044 macfont_info->metrics =
1045 xrealloc (macfont_info->metrics,
1046 sizeof (struct macfont_metrics *) * (row + 1));
1047 memset (macfont_info->metrics + macfont_info->metrics_nrows, 0,
1048 (sizeof (struct macfont_metrics *)
1049 * (row + 1 - macfont_info->metrics_nrows)));
1050 macfont_info->metrics_nrows = row + 1;
1051 }
1052 if (macfont_info->metrics[row] == NULL)
1053 {
1054 struct macfont_metrics *new;
1055 int i;
1056
1057 new = xmalloc (sizeof (struct macfont_metrics) * METRICS_NCOLS_PER_ROW);
1058 for (i = 0; i < METRICS_NCOLS_PER_ROW; i++)
1059 METRICS_SET_STATUS (new + i, METRICS_INVALID);
1060 macfont_info->metrics[row] = new;
1061 }
1062 cache = macfont_info->metrics[row] + col;
1063
1064 if (METRICS_STATUS (cache) == METRICS_INVALID)
1065 {
1066 CGFloat fwidth;
1067
1068 if (macfont_info->screen_font)
1069 fwidth = mac_screen_font_get_advance_width_for_glyph (macfont_info->screen_font, glyph);
1070 else
1071 fwidth = mac_font_get_advance_width_for_glyph (macfont, glyph);
1072
1073 /* For synthetic mono fonts, cache->width_{int,frac} holds the
1074 advance delta value. */
1075 if (macfont_info->spacing == MACFONT_SPACING_SYNTHETIC_MONO)
1076 fwidth = (font->pixel_size - fwidth) / 2;
1077 cache->width_int = lround (fwidth);
1078 cache->width_frac = lround ((fwidth - cache->width_int)
1079 * WIDTH_FRAC_SCALE);
1080 METRICS_SET_STATUS (cache, METRICS_WIDTH_VALID);
1081 }
1082 if (macfont_info->spacing == MACFONT_SPACING_SYNTHETIC_MONO)
1083 width = font->pixel_size;
1084 else
1085 width = cache->width_int;
1086
1087 if (metrics)
1088 {
1089 if (METRICS_STATUS (cache) == METRICS_WIDTH_VALID)
1090 {
1091 CGRect bounds = mac_font_get_bounding_rect_for_glyph (macfont, glyph);
1092
1093 if (macfont_info->synthetic_italic_p)
1094 {
1095 /* We assume the members a, b, c, and d in
1096 synthetic_italic_atfm are non-negative. */
1097 bounds.origin =
1098 CGPointApplyAffineTransform (bounds.origin,
1099 synthetic_italic_atfm);
1100 bounds.size =
1101 CGSizeApplyAffineTransform (bounds.size, synthetic_italic_atfm);
1102 }
1103 if (macfont_info->synthetic_bold_p)
1104 {
1105 CGFloat d =
1106 - synthetic_bold_factor * mac_font_get_size (macfont) / 2;
1107
1108 bounds = CGRectInset (bounds, d, d);
1109 }
1110 switch (macfont_info->spacing)
1111 {
1112 case MACFONT_SPACING_PROPORTIONAL:
1113 bounds.origin.x += - (cache->width_frac
1114 / (CGFloat) (WIDTH_FRAC_SCALE * 2));
1115 break;
1116 case MACFONT_SPACING_MONO:
1117 break;
1118 case MACFONT_SPACING_SYNTHETIC_MONO:
1119 bounds.origin.x += (cache->width_int
1120 + (cache->width_frac
1121 / (CGFloat) WIDTH_FRAC_SCALE));
1122 break;
1123 }
1124 if (bounds.size.width > 0)
1125 {
1126 bounds.origin.x -= LCD_FONT_SMOOTHING_LEFT_MARGIN;
1127 bounds.size.width += (LCD_FONT_SMOOTHING_LEFT_MARGIN
1128 + LCD_FONT_SMOOTHING_RIGHT_MARGIN);
1129 }
1130 bounds = CGRectIntegral (bounds);
1131 METRICS_SET_VALUE (cache, lbearing, CGRectGetMinX (bounds));
1132 METRICS_SET_VALUE (cache, rbearing, CGRectGetMaxX (bounds));
1133 METRICS_SET_VALUE (cache, ascent, CGRectGetMaxY (bounds));
1134 METRICS_SET_VALUE (cache, descent, -CGRectGetMinY (bounds));
1135 }
1136 metrics->lbearing = METRICS_VALUE (cache, lbearing);
1137 metrics->rbearing = METRICS_VALUE (cache, rbearing);
1138 metrics->width = width;
1139 metrics->ascent = METRICS_VALUE (cache, ascent);
1140 metrics->descent = METRICS_VALUE (cache, descent);
1141 }
1142
1143 if (advance_delta)
1144 {
1145 switch (macfont_info->spacing)
1146 {
1147 case MACFONT_SPACING_PROPORTIONAL:
1148 *advance_delta = (force_integral_p ? 0
1149 : - (cache->width_frac
1150 / (CGFloat) (WIDTH_FRAC_SCALE * 2)));
1151 break;
1152 case MACFONT_SPACING_MONO:
1153 *advance_delta = 0;
1154 break;
1155 case MACFONT_SPACING_SYNTHETIC_MONO:
1156 *advance_delta = (force_integral_p ? cache->width_int
1157 : (cache->width_int
1158 + (cache->width_frac
1159 / (CGFloat) WIDTH_FRAC_SCALE)));
1160 break;
1161 }
1162 }
1163
1164 return width;
1165 }
1166
1167 static CFMutableDictionaryRef macfont_cache_dictionary;
1168
1169 /* Threshold used in row_nkeys_or_perm. This must be less than or
1170 equal to the number of rows that are invalid as BMP (i.e., from
1171 U+D800 to U+DFFF). */
1172 #define ROW_PERM_OFFSET (8)
1173
1174 /* The number of glyphs that can be stored in a value for a single
1175 entry of CFDictionary. */
1176 #define NGLYPHS_IN_VALUE (sizeof (void *) / sizeof (CGGlyph))
1177
1178 struct macfont_cache
1179 {
1180 int reference_count;
1181 CFCharacterSetRef cf_charset;
1182 struct {
1183 /* The cached glyph for a BMP character c is stored in
1184 matrix[row_nkeys_or_perm[c / 256] - ROW_PERM_OFFSET][c % 256]
1185 if row_nkeys_or_perm[c / 256] >= ROW_PERM_OFFSET. */
1186 unsigned char row_nkeys_or_perm[256];
1187 CGGlyph **matrix;
1188
1189 /* Number of rows for which the BMP cache is allocated so far.
1190 I.e., matrix[0] ... matrix[nrows - 1] are non-NULL. */
1191 int nrows;
1192
1193 /* The cached glyph for a character c is stored as the (c %
1194 NGLYPHS_IN_VALUE)-th CGGlyph block of a value for the key (c /
1195 NGLYPHS_IN_VALUE). However, the glyph for a BMP character c is
1196 not stored here if row_nkeys_or_perm[c / 256] >=
1197 ROW_PERM_OFFSET. */
1198 CFMutableDictionaryRef dictionary;
1199 } glyph;
1200
1201 struct {
1202 /* UVS (Unicode Variation Sequence) subtable data, which is of
1203 type CFDataRef if available. NULL means it is not initialized
1204 yet. kCFNull means the subtable is not found and there is no
1205 suitable fallback table for this font. */
1206 CFTypeRef table;
1207
1208 /* Character collection specifying the destination of the mapping
1209 provided by `table' above. If `table' is obtained from the UVS
1210 subtable in the font cmap table, then the value of this member
1211 should be MAC_CHARACTER_COLLECTION_IDENTITY_MAPPING. */
1212 CharacterCollection collection;
1213 } uvs;
1214 };
1215
1216 static struct macfont_cache *macfont_lookup_cache (CFStringRef);
1217 static struct macfont_cache *macfont_retain_cache (struct macfont_cache *);
1218 static void macfont_release_cache (struct macfont_cache *);
1219 static CFCharacterSetRef macfont_get_cf_charset (struct font *);
1220 static CFCharacterSetRef macfont_get_cf_charset_for_name (CFStringRef);
1221 static CGGlyph macfont_get_glyph_for_character (struct font *, UTF32Char);
1222 static CGGlyph macfont_get_glyph_for_cid (struct font *font,
1223 CharacterCollection, CGFontIndex);
1224 static CFDataRef macfont_get_uvs_table (struct font *, CharacterCollection *);
1225
1226 static struct macfont_cache *
1227 macfont_lookup_cache (CFStringRef key)
1228 {
1229 struct macfont_cache *cache;
1230
1231 if (macfont_cache_dictionary == NULL)
1232 {
1233 macfont_cache_dictionary =
1234 CFDictionaryCreateMutable (NULL, 0,
1235 &kCFTypeDictionaryKeyCallBacks, NULL);
1236 cache = NULL;
1237 }
1238 else
1239 cache = ((struct macfont_cache *)
1240 CFDictionaryGetValue (macfont_cache_dictionary, key));
1241
1242 if (cache == NULL)
1243 {
1244 FontRef macfont = mac_font_create_with_name (key, 0);
1245
1246 if (macfont)
1247 {
1248 cache = xzalloc (sizeof (struct macfont_cache));
1249 /* Treat the LastResort font as if it contained glyphs for
1250 all characters. This may look too rough, but neither
1251 CTFontCopyCharacterSet nor -[NSFont coveredCharacterSet]
1252 for this font is correct for non-BMP characters on Mac OS
1253 X 10.5, anyway. */
1254 if (CFEqual (key, CFSTR ("LastResort")))
1255 {
1256 CFRange range = CFRangeMake (0, MAX_UNICODE_CHAR + 1);
1257
1258 cache->cf_charset =
1259 CFCharacterSetCreateWithCharactersInRange (NULL, range);
1260 }
1261 if (cache->cf_charset == NULL)
1262 cache->cf_charset = mac_font_copy_character_set (macfont);
1263 CFDictionaryAddValue (macfont_cache_dictionary, key,
1264 (const void *) cache);
1265 CFRelease (macfont);
1266 }
1267 }
1268
1269 return cache;
1270 }
1271
1272 static struct macfont_cache *
1273 macfont_retain_cache (struct macfont_cache *cache)
1274 {
1275 cache->reference_count++;
1276
1277 return cache;
1278 }
1279
1280 static void
1281 macfont_release_cache (struct macfont_cache *cache)
1282 {
1283 if (--cache->reference_count == 0)
1284 {
1285 int i;
1286
1287 for (i = 0; i < cache->glyph.nrows; i++)
1288 xfree (cache->glyph.matrix[i]);
1289 xfree (cache->glyph.matrix);
1290 if (cache->glyph.dictionary)
1291 CFRelease (cache->glyph.dictionary);
1292 memset (&cache->glyph, 0, sizeof (cache->glyph));
1293 if (cache->uvs.table)
1294 CFRelease (cache->uvs.table);
1295 memset (&cache->uvs, 0, sizeof (cache->uvs));
1296 }
1297 }
1298
1299 static CFCharacterSetRef
1300 macfont_get_cf_charset (struct font *font)
1301 {
1302 struct macfont_info *macfont_info = (struct macfont_info *) font;
1303
1304 return macfont_info->cache->cf_charset;
1305 }
1306
1307 static CFCharacterSetRef
1308 macfont_get_cf_charset_for_name (CFStringRef name)
1309 {
1310 struct macfont_cache *cache = macfont_lookup_cache (name);
1311
1312 return cache->cf_charset;
1313 }
1314
1315 static CGGlyph
1316 macfont_get_glyph_for_character (struct font *font, UTF32Char c)
1317 {
1318 struct macfont_info *macfont_info = (struct macfont_info *) font;
1319 FontRef macfont = macfont_info->macfont;
1320 struct macfont_cache *cache = macfont_info->cache;
1321
1322 if (c < 0xD800 || (c > 0xDFFF && c < 0x10000))
1323 {
1324 int row = c / 256;
1325 int nkeys_or_perm = cache->glyph.row_nkeys_or_perm[row];
1326
1327 if (nkeys_or_perm < ROW_PERM_OFFSET)
1328 {
1329 UniChar unichars[256], ch;
1330 CGGlyph *glyphs;
1331 int i, len;
1332 int nrows;
1333 #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
1334 dispatch_queue_t queue;
1335 dispatch_group_t group = NULL;
1336 #else
1337 int nkeys;
1338 #endif
1339
1340 if (row != 0)
1341 {
1342 CFMutableDictionaryRef dictionary;
1343 uintptr_t key, value;
1344 int nshifts;
1345 CGGlyph glyph;
1346
1347 if (cache->glyph.dictionary == NULL)
1348 cache->glyph.dictionary =
1349 CFDictionaryCreateMutable (NULL, 0, NULL, NULL);
1350 dictionary = cache->glyph.dictionary;
1351 key = c / NGLYPHS_IN_VALUE;
1352 nshifts = ((c % NGLYPHS_IN_VALUE) * sizeof (CGGlyph) * 8);
1353 value = ((uintptr_t)
1354 CFDictionaryGetValue (dictionary, (const void *) key));
1355 glyph = (value >> nshifts);
1356 if (glyph)
1357 return glyph;
1358
1359 if (nkeys_or_perm + 1 != ROW_PERM_OFFSET)
1360 {
1361 ch = c;
1362 if (!mac_font_get_glyphs_for_characters (macfont, &ch,
1363 &glyph, 1)
1364 || glyph == 0)
1365 glyph = kCGFontIndexInvalid;
1366
1367 if (value == 0)
1368 cache->glyph.row_nkeys_or_perm[row] = nkeys_or_perm + 1;
1369 value |= ((uintptr_t) glyph << nshifts);
1370 CFDictionarySetValue (dictionary, (const void *) key,
1371 (const void *) value);
1372
1373 return glyph;
1374 }
1375
1376 #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
1377 queue =
1378 dispatch_get_global_queue (DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
1379 group = dispatch_group_create ();
1380 dispatch_group_async (group, queue, ^{
1381 int nkeys;
1382 uintptr_t key;
1383 #endif
1384 nkeys = nkeys_or_perm;
1385 for (key = row * (256 / NGLYPHS_IN_VALUE); ; key++)
1386 if (CFDictionaryContainsKey (dictionary,
1387 (const void *) key))
1388 {
1389 CFDictionaryRemoveValue (dictionary,
1390 (const void *) key);
1391 if (--nkeys == 0)
1392 break;
1393 }
1394 #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
1395 });
1396 #endif
1397 }
1398
1399 len = 0;
1400 for (i = 0; i < 256; i++)
1401 {
1402 ch = row * 256 + i;
1403 if (CFCharacterSetIsLongCharacterMember (cache->cf_charset, ch))
1404 unichars[len++] = ch;
1405 }
1406
1407 glyphs = xmalloc (sizeof (CGGlyph) * 256);
1408 if (len > 0)
1409 {
1410 mac_font_get_glyphs_for_characters (macfont, unichars,
1411 glyphs, len);
1412 while (i > len)
1413 {
1414 int next = unichars[len - 1] % 256;
1415
1416 while (--i > next)
1417 glyphs[i] = kCGFontIndexInvalid;
1418
1419 len--;
1420 glyphs[i] = glyphs[len];
1421 if (len == 0)
1422 break;
1423 }
1424 }
1425 if (i > len)
1426 while (i-- > 0)
1427 glyphs[i] = kCGFontIndexInvalid;
1428
1429 nrows = cache->glyph.nrows;
1430 nkeys_or_perm = nrows + ROW_PERM_OFFSET;
1431 cache->glyph.row_nkeys_or_perm[row] = nkeys_or_perm;
1432 nrows++;
1433 cache->glyph.matrix = xrealloc (cache->glyph.matrix,
1434 sizeof (CGGlyph *) * nrows);
1435 cache->glyph.matrix[nrows - 1] = glyphs;
1436 cache->glyph.nrows = nrows;
1437
1438 #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
1439 if (group)
1440 {
1441 dispatch_group_wait (group, DISPATCH_TIME_FOREVER);
1442 dispatch_release (group);
1443 }
1444 #endif
1445 }
1446
1447 return cache->glyph.matrix[nkeys_or_perm - ROW_PERM_OFFSET][c % 256];
1448 }
1449 else
1450 {
1451 uintptr_t key, value;
1452 int nshifts;
1453 CGGlyph glyph;
1454
1455 if (cache->glyph.dictionary == NULL)
1456 cache->glyph.dictionary =
1457 CFDictionaryCreateMutable (NULL, 0, NULL, NULL);
1458 key = c / NGLYPHS_IN_VALUE;
1459 nshifts = ((c % NGLYPHS_IN_VALUE) * sizeof (CGGlyph) * 8);
1460 value = (uintptr_t) CFDictionaryGetValue (cache->glyph.dictionary,
1461 (const void *) key);
1462 glyph = (value >> nshifts);
1463 if (glyph == 0)
1464 {
1465 UniChar unichars[2];
1466 CGGlyph glyphs[2];
1467 CFIndex count = macfont_store_utf32char_to_unichars (c, unichars);
1468
1469 if (mac_font_get_glyphs_for_characters (macfont, unichars, glyphs,
1470 count))
1471 glyph = glyphs[0];
1472 if (glyph == 0)
1473 glyph = kCGFontIndexInvalid;
1474
1475 value |= ((uintptr_t) glyph << nshifts);
1476 CFDictionarySetValue (cache->glyph.dictionary,
1477 (const void *) key, (const void *) value);
1478 }
1479
1480 return glyph;
1481 }
1482 }
1483
1484 static CGGlyph
1485 macfont_get_glyph_for_cid (struct font *font, CharacterCollection collection,
1486 CGFontIndex cid)
1487 {
1488 struct macfont_info *macfont_info = (struct macfont_info *) font;
1489 FontRef macfont = macfont_info->macfont;
1490
1491 /* Cache it? */
1492 return mac_font_get_glyph_for_cid (macfont, collection, cid);
1493 }
1494
1495 static CFDataRef
1496 macfont_get_uvs_table (struct font *font, CharacterCollection *collection)
1497 {
1498 struct macfont_info *macfont_info = (struct macfont_info *) font;
1499 FontRef macfont = macfont_info->macfont;
1500 struct macfont_cache *cache = macfont_info->cache;
1501 CFDataRef result = NULL;
1502
1503 if (cache->uvs.table == NULL)
1504 {
1505 CFDataRef uvs_table = mac_font_copy_uvs_table (macfont);
1506 CharacterCollection uvs_collection =
1507 MAC_CHARACTER_COLLECTION_IDENTITY_MAPPING;
1508
1509 if (uvs_table == NULL
1510 && mac_font_get_glyph_for_cid (macfont,
1511 MAC_CHARACTER_COLLECTION_ADOBE_JAPAN1,
1512 6480) != kCGFontIndexInvalid)
1513 {
1514 /* If the glyph for U+4E55 is accessible via its CID 6480,
1515 then we use the Adobe-Japan1 UVS table, which maps a
1516 variation sequence to a CID, as a fallback. */
1517 static CFDataRef mac_uvs_table_adobe_japan1 = NULL;
1518
1519 if (mac_uvs_table_adobe_japan1 == NULL)
1520 mac_uvs_table_adobe_japan1 =
1521 CFDataCreateWithBytesNoCopy (NULL,
1522 mac_uvs_table_adobe_japan1_bytes,
1523 sizeof (mac_uvs_table_adobe_japan1_bytes),
1524 kCFAllocatorNull);
1525 if (mac_uvs_table_adobe_japan1)
1526 {
1527 uvs_table = CFRetain (mac_uvs_table_adobe_japan1);
1528 uvs_collection = MAC_CHARACTER_COLLECTION_ADOBE_JAPAN1;
1529 }
1530 }
1531 if (uvs_table == NULL)
1532 cache->uvs.table = kCFNull;
1533 else
1534 cache->uvs.table = uvs_table;
1535 cache->uvs.collection = uvs_collection;
1536 }
1537
1538 if (cache->uvs.table != kCFNull)
1539 {
1540 result = cache->uvs.table;
1541 *collection = cache->uvs.collection;
1542 }
1543
1544 return result;
1545 }
1546
1547 static Lisp_Object macfont_get_cache (struct frame *);
1548 static Lisp_Object macfont_list (struct frame *, Lisp_Object);
1549 static Lisp_Object macfont_match (struct frame *, Lisp_Object);
1550 static Lisp_Object macfont_list_family (struct frame *);
1551 static void macfont_free_entity (Lisp_Object);
1552 static Lisp_Object macfont_open (struct frame *, Lisp_Object, int);
1553 static void macfont_close (struct font *);
1554 static int macfont_has_char (Lisp_Object, int);
1555 static unsigned macfont_encode_char (struct font *, int);
1556 static int macfont_text_extents (struct font *, unsigned int *, int,
1557 struct font_metrics *);
1558 static int macfont_draw (struct glyph_string *, int, int, int, int, bool);
1559 static Lisp_Object macfont_shape (Lisp_Object);
1560 static int macfont_variation_glyphs (struct font *, int c,
1561 unsigned variations[256]);
1562 static void macfont_filter_properties (Lisp_Object, Lisp_Object);
1563
1564 static struct font_driver macfont_driver =
1565 {
1566 LISP_INITIALLY_ZERO, /* Qmac_ct */
1567 0, /* case insensitive */
1568 macfont_get_cache,
1569 macfont_list,
1570 macfont_match,
1571 macfont_list_family,
1572 macfont_free_entity,
1573 macfont_open,
1574 macfont_close,
1575 NULL, /* prepare_face */
1576 NULL, /* done_face */
1577 macfont_has_char,
1578 macfont_encode_char,
1579 macfont_text_extents,
1580 macfont_draw,
1581 NULL, /* get_bitmap */
1582 NULL, /* free_bitmap */
1583 NULL, /* get_outline */
1584 NULL, /* free_outline */
1585 NULL, /* anchor_point */
1586 NULL, /* otf_capability */
1587 NULL, /* otf_drive */
1588 NULL, /* start_for_frame */
1589 NULL, /* end_for_frame */
1590 macfont_shape,
1591 NULL, /* check */
1592 macfont_variation_glyphs,
1593 macfont_filter_properties,
1594 };
1595
1596 static Lisp_Object
1597 macfont_get_cache (struct frame * f)
1598 {
1599 Display_Info *dpyinfo = FRAME_DISPLAY_INFO (f);
1600
1601 return (dpyinfo->name_list_element);
1602 }
1603
1604 static int
1605 macfont_get_charset (Lisp_Object registry)
1606 {
1607 char *str = SSDATA (SYMBOL_NAME (registry));
1608 char *re = alloca (SBYTES (SYMBOL_NAME (registry)) * 2 + 1);
1609 Lisp_Object regexp;
1610 int i, j;
1611
1612 for (i = j = 0; i < SBYTES (SYMBOL_NAME (registry)); i++, j++)
1613 {
1614 if (str[i] == '.')
1615 re[j++] = '\\';
1616 else if (str[i] == '*')
1617 re[j++] = '.';
1618 re[j] = str[i];
1619 if (re[j] == '?')
1620 re[j] = '.';
1621 }
1622 re[j] = '\0';
1623 regexp = make_unibyte_string (re, j);
1624 for (i = 0; cf_charset_table[i].name; i++)
1625 if (fast_c_string_match_ignore_case
1626 (regexp, cf_charset_table[i].name,
1627 strlen (cf_charset_table[i].name)) >= 0)
1628 break;
1629 if (! cf_charset_table[i].name)
1630 return -1;
1631 if (! cf_charset_table[i].cf_charset)
1632 {
1633 int *uniquifier = cf_charset_table[i].uniquifier;
1634 UniChar *unichars = alloca (sizeof (cf_charset_table[i].uniquifier));
1635 CFIndex count = 0;
1636 CFStringRef string;
1637 CFMutableCharacterSetRef charset = CFCharacterSetCreateMutable (NULL);
1638
1639 if (! charset)
1640 return -1;
1641 for (j = 0; uniquifier[j]; j++)
1642 {
1643 count += macfont_store_utf32char_to_unichars (uniquifier[j],
1644 unichars + count);
1645 CFCharacterSetAddCharactersInRange (charset,
1646 CFRangeMake (uniquifier[j], 1));
1647 }
1648
1649 string = CFStringCreateWithCharacters (NULL, unichars, count);
1650 if (! string)
1651 {
1652 CFRelease (charset);
1653 return -1;
1654 }
1655 cf_charset_table[i].cf_charset = CFCharacterSetCreateCopy (NULL,
1656 charset);
1657 CFRelease (charset);
1658 /* CFCharacterSetCreateWithCharactersInString does not handle
1659 surrogate pairs properly as of Mac OS X 10.5. */
1660 cf_charset_table[i].cf_charset_string = string;
1661 }
1662 return i;
1663 }
1664
1665 struct OpenTypeSpec
1666 {
1667 Lisp_Object script;
1668 unsigned int script_tag, langsys_tag;
1669 int nfeatures[2];
1670 unsigned int *features[2];
1671 };
1672
1673 #define OTF_SYM_TAG(SYM, TAG) \
1674 do { \
1675 unsigned char *p = SDATA (SYMBOL_NAME (SYM)); \
1676 TAG = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; \
1677 } while (0)
1678
1679 #define OTF_TAG_STR(TAG, P) \
1680 do { \
1681 (P)[0] = (char) (TAG >> 24); \
1682 (P)[1] = (char) ((TAG >> 16) & 0xFF); \
1683 (P)[2] = (char) ((TAG >> 8) & 0xFF); \
1684 (P)[3] = (char) (TAG & 0xFF); \
1685 (P)[4] = '\0'; \
1686 } while (0)
1687
1688 static struct OpenTypeSpec *
1689 macfont_get_open_type_spec (Lisp_Object otf_spec)
1690 {
1691 struct OpenTypeSpec *spec = xmalloc (sizeof *spec);
1692 Lisp_Object val;
1693 int i, j;
1694 bool negative;
1695
1696 if (! spec)
1697 return NULL;
1698 spec->script = XCAR (otf_spec);
1699 if (! NILP (spec->script))
1700 {
1701 OTF_SYM_TAG (spec->script, spec->script_tag);
1702 val = assq_no_quit (spec->script, Votf_script_alist);
1703 if (CONSP (val) && SYMBOLP (XCDR (val)))
1704 spec->script = XCDR (val);
1705 else
1706 spec->script = Qnil;
1707 }
1708 else
1709 spec->script_tag = 0x44464C54; /* "DFLT" */
1710 otf_spec = XCDR (otf_spec);
1711 spec->langsys_tag = 0;
1712 if (! NILP (otf_spec))
1713 {
1714 val = XCAR (otf_spec);
1715 if (! NILP (val))
1716 OTF_SYM_TAG (val, spec->langsys_tag);
1717 otf_spec = XCDR (otf_spec);
1718 }
1719 spec->nfeatures[0] = spec->nfeatures[1] = 0;
1720 for (i = 0; i < 2 && ! NILP (otf_spec); i++, otf_spec = XCDR (otf_spec))
1721 {
1722 Lisp_Object len;
1723
1724 val = XCAR (otf_spec);
1725 if (NILP (val))
1726 continue;
1727 len = Flength (val);
1728 spec->features[i] =
1729 (min (PTRDIFF_MAX, SIZE_MAX) / sizeof (int) < XINT (len)
1730 ? 0
1731 : malloc (XINT (len) * sizeof *spec->features[i]));
1732 if (! spec->features[i])
1733 {
1734 if (i > 0 && spec->features[0])
1735 free (spec->features[0]);
1736 free (spec);
1737 return NULL;
1738 }
1739 for (j = 0, negative = 0; CONSP (val); val = XCDR (val))
1740 {
1741 if (NILP (XCAR (val)))
1742 negative = 1;
1743 else
1744 {
1745 unsigned int tag;
1746
1747 OTF_SYM_TAG (XCAR (val), tag);
1748 spec->features[i][j++] = negative ? tag & 0x80000000 : tag;
1749 }
1750 }
1751 spec->nfeatures[i] = j;
1752 }
1753 return spec;
1754 }
1755
1756 static CFMutableDictionaryRef
1757 macfont_create_attributes_with_spec (Lisp_Object spec)
1758 {
1759 Lisp_Object tmp, extra;
1760 CFMutableArrayRef langarray = NULL;
1761 CFCharacterSetRef charset = NULL;
1762 CFStringRef charset_string = NULL;
1763 CFMutableDictionaryRef attributes = NULL, traits = NULL;
1764 Lisp_Object script = Qnil;
1765 Lisp_Object registry;
1766 int cf_charset_idx, i;
1767 struct OpenTypeSpec *otspec = NULL;
1768 struct {
1769 enum font_property_index index;
1770 CFStringRef trait;
1771 CGPoint points[6];
1772 } numeric_traits[] =
1773 {{FONT_WEIGHT_INDEX, MAC_FONT_WEIGHT_TRAIT,
1774 {{-0.4, 50}, /* light */
1775 {-0.24, 87.5}, /* (semi-light + normal) / 2 */
1776 {0, 100}, /* normal */
1777 {0.24, 140}, /* (semi-bold + normal) / 2 */
1778 {0.4, 200}, /* bold */
1779 {CGFLOAT_MAX, CGFLOAT_MAX}}},
1780 {FONT_SLANT_INDEX, MAC_FONT_SLANT_TRAIT,
1781 {{0, 100}, {0.1, 200}, {CGFLOAT_MAX, CGFLOAT_MAX}}},
1782 {FONT_WIDTH_INDEX, MAC_FONT_WIDTH_TRAIT,
1783 {{0, 100}, {1, 200}, {CGFLOAT_MAX, CGFLOAT_MAX}}}};
1784
1785 registry = AREF (spec, FONT_REGISTRY_INDEX);
1786 if (NILP (registry)
1787 || EQ (registry, Qascii_0)
1788 || EQ (registry, Qiso10646_1)
1789 || EQ (registry, Qunicode_bmp))
1790 cf_charset_idx = -1;
1791 else
1792 {
1793 CFStringRef lang;
1794
1795 cf_charset_idx = macfont_get_charset (registry);
1796 if (cf_charset_idx < 0)
1797 goto err;
1798 charset = cf_charset_table[cf_charset_idx].cf_charset;
1799 charset_string = cf_charset_table[cf_charset_idx].cf_charset_string;
1800 lang = cf_charset_table[cf_charset_idx].lang;
1801 if (lang)
1802 {
1803 langarray = CFArrayCreateMutable (NULL, 0, &kCFTypeArrayCallBacks);
1804 if (! langarray)
1805 goto err;
1806 CFArrayAppendValue (langarray, lang);
1807 }
1808 }
1809
1810 for (extra = AREF (spec, FONT_EXTRA_INDEX);
1811 CONSP (extra); extra = XCDR (extra))
1812 {
1813 Lisp_Object key, val;
1814
1815 tmp = XCAR (extra);
1816 key = XCAR (tmp), val = XCDR (tmp);
1817 if (EQ (key, QClang))
1818 {
1819 if (! langarray)
1820 langarray = CFArrayCreateMutable (NULL, 0, &kCFTypeArrayCallBacks);
1821 if (! langarray)
1822 goto err;
1823 if (SYMBOLP (val))
1824 val = list1 (val);
1825 for (; CONSP (val); val = XCDR (val))
1826 if (SYMBOLP (XCAR (val)))
1827 {
1828 CFStringRef lang =
1829 cfstring_create_with_string_noencode (SYMBOL_NAME
1830 (XCAR (val)));
1831
1832 if (lang == NULL)
1833 goto err;
1834 CFArrayAppendValue (langarray, lang);
1835 CFRelease (lang);
1836 }
1837 }
1838 else if (EQ (key, QCotf))
1839 {
1840 otspec = macfont_get_open_type_spec (val);
1841 if (! otspec)
1842 goto err;
1843 script = otspec->script;
1844 }
1845 else if (EQ (key, QCscript))
1846 script = val;
1847 }
1848
1849 if (! NILP (script) && ! charset)
1850 {
1851 Lisp_Object chars = assq_no_quit (script, Vscript_representative_chars);
1852
1853 if (CONSP (chars) && CONSP (CDR (chars)))
1854 {
1855 CFMutableStringRef string = CFStringCreateMutable (NULL, 0);
1856 CFMutableCharacterSetRef cs = CFCharacterSetCreateMutable (NULL);
1857
1858 if (! string || !cs)
1859 {
1860 if (string)
1861 CFRelease (string);
1862 else if (cs)
1863 CFRelease (cs);
1864 goto err;
1865 }
1866 for (chars = XCDR (chars); CONSP (chars); chars = XCDR (chars))
1867 if (CHARACTERP (XCAR (chars)))
1868 {
1869 UniChar unichars[2];
1870 CFIndex count =
1871 macfont_store_utf32char_to_unichars (XFASTINT (XCAR (chars)),
1872 unichars);
1873 CFRange range = CFRangeMake (XFASTINT (XCAR (chars)), 1);
1874
1875 CFStringAppendCharacters (string, unichars, count);
1876 CFCharacterSetAddCharactersInRange (cs, range);
1877 }
1878 charset = cs;
1879 /* CFCharacterSetCreateWithCharactersInString does not
1880 handle surrogate pairs properly as of Mac OS X 10.5. */
1881 charset_string = string;
1882 }
1883 }
1884
1885 attributes = CFDictionaryCreateMutable (NULL, 0,
1886 &kCFTypeDictionaryKeyCallBacks,
1887 &kCFTypeDictionaryValueCallBacks);
1888 if (! attributes)
1889 goto err;
1890
1891 tmp = AREF (spec, FONT_FAMILY_INDEX);
1892 if (SYMBOLP (tmp) && ! NILP (tmp))
1893 {
1894 CFStringRef family = macfont_create_family_with_symbol (tmp);
1895
1896 if (! family)
1897 goto err;
1898 CFDictionaryAddValue (attributes, MAC_FONT_FAMILY_NAME_ATTRIBUTE,
1899 family);
1900 CFRelease (family);
1901 }
1902
1903 traits = CFDictionaryCreateMutable (NULL, 4,
1904 &kCFTypeDictionaryKeyCallBacks,
1905 &kCFTypeDictionaryValueCallBacks);
1906 if (! traits)
1907 goto err;
1908
1909 for (i = 0; i < ARRAYELTS (numeric_traits); i++)
1910 {
1911 tmp = AREF (spec, numeric_traits[i].index);
1912 if (INTEGERP (tmp))
1913 {
1914 CGPoint *point = numeric_traits[i].points;
1915 CGFloat floatval = (XINT (tmp) >> 8); // XXX
1916 CFNumberRef num;
1917
1918 while (point->y < floatval)
1919 point++;
1920 if (point == numeric_traits[i].points)
1921 point++;
1922 else if (point->y == CGFLOAT_MAX)
1923 point--;
1924 floatval = (point - 1)->x + ((floatval - (point - 1)->y)
1925 * ((point->x - (point - 1)->x)
1926 / (point->y - (point - 1)->y)));
1927 if (floatval > 1.0)
1928 floatval = 1.0;
1929 else if (floatval < -1.0)
1930 floatval = -1.0;
1931 num = CFNumberCreate (NULL, kCFNumberCGFloatType, &floatval);
1932 if (! num)
1933 goto err;
1934 CFDictionaryAddValue (traits, numeric_traits[i].trait, num);
1935 CFRelease (num);
1936 }
1937 }
1938 if (CFDictionaryGetCount (traits))
1939 CFDictionaryAddValue (attributes, MAC_FONT_TRAITS_ATTRIBUTE, traits);
1940
1941 if (charset)
1942 CFDictionaryAddValue (attributes, MAC_FONT_CHARACTER_SET_ATTRIBUTE,
1943 charset);
1944 if (charset_string)
1945 CFDictionaryAddValue (attributes, MAC_FONT_CHARACTER_SET_STRING_ATTRIBUTE,
1946 charset_string);
1947 if (langarray)
1948 CFDictionaryAddValue (attributes, MAC_FONT_LANGUAGES_ATTRIBUTE, langarray);
1949
1950 goto finish;
1951
1952 err:
1953 if (attributes)
1954 {
1955 CFRelease (attributes);
1956 attributes = NULL;
1957 }
1958
1959 finish:
1960 if (langarray) CFRelease (langarray);
1961 if (charset && cf_charset_idx < 0) CFRelease (charset);
1962 if (charset_string && cf_charset_idx < 0) CFRelease (charset_string);
1963 if (traits) CFRelease (traits);
1964 if (otspec)
1965 {
1966 if (otspec->nfeatures[0] > 0)
1967 free (otspec->features[0]);
1968 if (otspec->nfeatures[1] > 0)
1969 free (otspec->features[1]);
1970 free (otspec);
1971 }
1972
1973 return attributes;
1974 }
1975
1976 static Boolean
1977 macfont_supports_charset_and_languages_p (FontDescriptorRef desc,
1978 CFCharacterSetRef charset,
1979 Lisp_Object chars,
1980 CFArrayRef languages)
1981 {
1982 Boolean result = true;
1983
1984 if (charset || VECTORP (chars))
1985 {
1986 CFCharacterSetRef desc_charset =
1987 mac_font_descriptor_copy_attribute (desc,
1988 MAC_FONT_CHARACTER_SET_ATTRIBUTE);
1989
1990 if (desc_charset == NULL)
1991 result = false;
1992 else
1993 {
1994 if (charset)
1995 result = CFCharacterSetIsSupersetOfSet (desc_charset, charset);
1996 else /* VECTORP (chars) */
1997 {
1998 ptrdiff_t j;
1999
2000 for (j = 0; j < ASIZE (chars); j++)
2001 if (TYPE_RANGED_INTEGERP (UTF32Char, AREF (chars, j))
2002 && CFCharacterSetIsLongCharacterMember (desc_charset,
2003 XFASTINT (AREF (chars, j))))
2004 break;
2005 if (j == ASIZE (chars))
2006 result = false;
2007 }
2008 CFRelease (desc_charset);
2009 }
2010 }
2011 if (result && languages)
2012 result = mac_font_descriptor_supports_languages (desc, languages);
2013
2014 return result;
2015 }
2016
2017 static CFIndex
2018 macfont_closest_traits_index (CFArrayRef traits_array,
2019 FontSymbolicTraits target)
2020 {
2021 CFIndex i, result = -1, count = CFArrayGetCount (traits_array);
2022 int min_distance = (1 << 3);
2023
2024 for (i = 0; i < count; i++)
2025 {
2026 FontSymbolicTraits traits, diff;
2027 int distance = 0;
2028
2029 traits = ((FontSymbolicTraits) (uintptr_t)
2030 CFArrayGetValueAtIndex (traits_array, i));
2031 diff = (target ^ traits);
2032 /* We prefer synthetic bold of italic to synthetic italic of
2033 bold when both bold and italic are available but bold-italic
2034 is not available. */
2035 if (diff & MAC_FONT_TRAIT_BOLD)
2036 distance |= (1 << 0);
2037 if (diff & MAC_FONT_TRAIT_ITALIC)
2038 distance |= (1 << 1);
2039 if (diff & MAC_FONT_TRAIT_MONO_SPACE)
2040 distance |= (1 << 2);
2041 if (distance < min_distance)
2042 {
2043 min_distance = distance;
2044 result = i;
2045 }
2046 }
2047
2048 return result;
2049 }
2050
2051 static Lisp_Object
2052 macfont_list (struct frame *f, Lisp_Object spec)
2053 {
2054 Lisp_Object val = Qnil, family, extra;
2055 int i, n;
2056 CFStringRef family_name = NULL;
2057 CFMutableDictionaryRef attributes = NULL, traits;
2058 Lisp_Object chars = Qnil;
2059 int spacing = -1;
2060 FontSymbolicTraits synth_sym_traits = 0;
2061 CFArrayRef families;
2062 CFIndex families_count;
2063 CFCharacterSetRef charset = NULL;
2064 CFArrayRef languages = NULL;
2065
2066 block_input ();
2067
2068 family = AREF (spec, FONT_FAMILY_INDEX);
2069 if (! NILP (family))
2070 {
2071 family_name = macfont_create_family_with_symbol (family);
2072 if (family_name == NULL)
2073 goto finish;
2074 }
2075
2076 attributes = macfont_create_attributes_with_spec (spec);
2077 if (! attributes)
2078 goto finish;
2079
2080 languages = CFDictionaryGetValue (attributes, MAC_FONT_LANGUAGES_ATTRIBUTE);
2081
2082 if (INTEGERP (AREF (spec, FONT_SPACING_INDEX)))
2083 spacing = XINT (AREF (spec, FONT_SPACING_INDEX));
2084
2085 traits = ((CFMutableDictionaryRef)
2086 CFDictionaryGetValue (attributes, MAC_FONT_TRAITS_ATTRIBUTE));
2087
2088 n = FONT_SLANT_NUMERIC (spec);
2089 if (n < 0 || n == FONT_SLANT_SYNTHETIC_ITALIC)
2090 {
2091 synth_sym_traits |= MAC_FONT_TRAIT_ITALIC;
2092 if (traits)
2093 CFDictionaryRemoveValue (traits, MAC_FONT_SLANT_TRAIT);
2094 }
2095
2096 n = FONT_WEIGHT_NUMERIC (spec);
2097 if (n < 0 || n == FONT_WEIGHT_SYNTHETIC_BOLD)
2098 {
2099 synth_sym_traits |= MAC_FONT_TRAIT_BOLD;
2100 if (traits)
2101 CFDictionaryRemoveValue (traits, MAC_FONT_WEIGHT_TRAIT);
2102 }
2103
2104 if (languages
2105 && (spacing < 0 || spacing == FONT_SPACING_SYNTHETIC_MONO))
2106 {
2107 CFStringRef language = CFArrayGetValueAtIndex (languages, 0);
2108
2109 if (CFStringHasPrefix (language, CFSTR ("ja"))
2110 || CFStringHasPrefix (language, CFSTR ("ko"))
2111 || CFStringHasPrefix (language, CFSTR ("zh")))
2112 synth_sym_traits |= MAC_FONT_TRAIT_MONO_SPACE;
2113 }
2114
2115 /* Create array of families. */
2116 if (family_name)
2117 families = CFArrayCreate (NULL, (const void **) &family_name,
2118 1, &kCFTypeArrayCallBacks);
2119 else
2120 {
2121 CFStringRef pref_family;
2122 CFIndex families_count, pref_family_index = -1;
2123
2124 families = mac_font_create_available_families ();
2125 if (families == NULL)
2126 goto err;
2127
2128 families_count = CFArrayGetCount (families);
2129
2130 /* Move preferred family to the front if exists. */
2131 pref_family =
2132 mac_font_create_preferred_family_for_attributes (attributes);
2133 if (pref_family)
2134 {
2135 pref_family_index =
2136 CFArrayGetFirstIndexOfValue (families,
2137 CFRangeMake (0, families_count),
2138 pref_family);
2139 CFRelease (pref_family);
2140 }
2141 if (pref_family_index > 0)
2142 {
2143 CFMutableArrayRef mutable_families =
2144 CFArrayCreateMutable (NULL, families_count, &kCFTypeArrayCallBacks);
2145
2146 if (mutable_families)
2147 {
2148 CFArrayAppendValue (mutable_families,
2149 CFArrayGetValueAtIndex (families,
2150 pref_family_index));
2151 CFArrayAppendArray (mutable_families, families,
2152 CFRangeMake (0, pref_family_index));
2153 if (pref_family_index + 1 < families_count)
2154 CFArrayAppendArray (mutable_families, families,
2155 CFRangeMake (pref_family_index + 1,
2156 families_count
2157 - (pref_family_index + 1)));
2158 CFRelease (families);
2159 families = mutable_families;
2160 }
2161 }
2162 }
2163
2164 charset = CFDictionaryGetValue (attributes,
2165 MAC_FONT_CHARACTER_SET_ATTRIBUTE);
2166 if (charset)
2167 {
2168 CFRetain (charset);
2169 CFDictionaryRemoveValue (attributes, MAC_FONT_CHARACTER_SET_ATTRIBUTE);
2170 }
2171 else
2172 {
2173 val = assq_no_quit (QCscript, AREF (spec, FONT_EXTRA_INDEX));
2174 if (! NILP (val))
2175 {
2176 val = assq_no_quit (XCDR (val), Vscript_representative_chars);
2177 if (CONSP (val) && VECTORP (XCDR (val)))
2178 chars = XCDR (val);
2179 }
2180 val = Qnil;
2181 }
2182
2183 if (languages)
2184 {
2185 CFRetain (languages);
2186 CFDictionaryRemoveValue (attributes, MAC_FONT_LANGUAGES_ATTRIBUTE);
2187 }
2188
2189 val = Qnil;
2190 extra = AREF (spec, FONT_EXTRA_INDEX);
2191 families_count = CFArrayGetCount (families);
2192 for (i = 0; i < families_count; i++)
2193 {
2194 CFStringRef family_name = CFArrayGetValueAtIndex (families, i);
2195 FontDescriptorRef pat_desc;
2196 CFArrayRef descs;
2197 CFIndex descs_count;
2198 CFMutableArrayRef filtered_descs, traits_array;
2199 Lisp_Object entity;
2200 int j;
2201
2202 CFDictionarySetValue (attributes, MAC_FONT_FAMILY_NAME_ATTRIBUTE,
2203 family_name);
2204 pat_desc = mac_font_descriptor_create_with_attributes (attributes);
2205 if (! pat_desc)
2206 goto err;
2207
2208 /* CTFontDescriptorCreateMatchingFontDescriptors on Mac OS X
2209 10.7 returns NULL if pat_desc represents the LastResort font.
2210 So we use CTFontDescriptorCreateMatchingFontDescriptor (no
2211 trailing "s") for such a font. */
2212 if (!CFEqual (family_name, CFSTR ("LastResort")))
2213 descs = mac_font_descriptor_create_matching_font_descriptors (pat_desc,
2214 NULL);
2215 else
2216 {
2217 FontDescriptorRef lr_desc =
2218 mac_font_descriptor_create_matching_font_descriptor (pat_desc,
2219 NULL);
2220 if (lr_desc)
2221 {
2222 descs = CFArrayCreate (NULL, (const void **) &lr_desc, 1,
2223 &kCFTypeArrayCallBacks);
2224 CFRelease (lr_desc);
2225 }
2226 else
2227 descs = NULL;
2228 }
2229 CFRelease (pat_desc);
2230 if (! descs)
2231 goto err;
2232
2233 descs_count = CFArrayGetCount (descs);
2234 if (descs_count == 0
2235 || !macfont_supports_charset_and_languages_p (CFArrayGetValueAtIndex (descs, 0),
2236 charset, chars,
2237 languages))
2238 {
2239 CFRelease (descs);
2240 continue;
2241 }
2242
2243 filtered_descs =
2244 CFArrayCreateMutable (NULL, descs_count, &kCFTypeArrayCallBacks);
2245 traits_array = CFArrayCreateMutable (NULL, descs_count, NULL);
2246 for (j = 0; j < descs_count; j++)
2247 {
2248 FontDescriptorRef desc = CFArrayGetValueAtIndex (descs, j);
2249 CFDictionaryRef dict;
2250 CFNumberRef num;
2251 FontSymbolicTraits sym_traits;
2252
2253 dict = mac_font_descriptor_copy_attribute (desc,
2254 MAC_FONT_TRAITS_ATTRIBUTE);
2255 if (dict == NULL)
2256 continue;
2257
2258 num = CFDictionaryGetValue (dict, MAC_FONT_SYMBOLIC_TRAIT);
2259 CFRelease (dict);
2260 if (num == NULL
2261 || !cfnumber_get_font_symbolic_traits_value (num, &sym_traits))
2262 continue;
2263
2264 if (spacing >= 0
2265 && !(synth_sym_traits & MAC_FONT_TRAIT_MONO_SPACE)
2266 && (((sym_traits & MAC_FONT_TRAIT_MONO_SPACE) != 0)
2267 != (spacing >= FONT_SPACING_MONO)))
2268 continue;
2269
2270 /* Don't use a color bitmap font unless its family is
2271 explicitly specified. */
2272 if ((sym_traits & MAC_FONT_TRAIT_COLOR_GLYPHS) && NILP (family))
2273 continue;
2274
2275 if (j > 0
2276 && !macfont_supports_charset_and_languages_p (desc, charset,
2277 chars, languages))
2278 continue;
2279
2280 CFArrayAppendValue (filtered_descs, desc);
2281 CFArrayAppendValue (traits_array,
2282 (const void *) (uintptr_t) sym_traits);
2283 }
2284
2285 CFRelease (descs);
2286 descs = filtered_descs;
2287 descs_count = CFArrayGetCount (descs);
2288
2289 for (j = 0; j < descs_count; j++)
2290 {
2291 FontDescriptorRef desc = CFArrayGetValueAtIndex (descs, j);
2292 FontSymbolicTraits sym_traits =
2293 ((FontSymbolicTraits) (uintptr_t)
2294 CFArrayGetValueAtIndex (traits_array, j));
2295 FontSymbolicTraits mask_min, mask_max, imask, bmask, mmask;
2296
2297 mask_min = ((synth_sym_traits ^ sym_traits)
2298 & (MAC_FONT_TRAIT_ITALIC | MAC_FONT_TRAIT_BOLD));
2299 if (FONT_SLANT_NUMERIC (spec) < 0)
2300 mask_min &= ~MAC_FONT_TRAIT_ITALIC;
2301 if (FONT_WEIGHT_NUMERIC (spec) < 0)
2302 mask_min &= ~MAC_FONT_TRAIT_BOLD;
2303
2304 mask_max = (synth_sym_traits & ~sym_traits);
2305 /* Synthetic bold does not work for bitmap-only fonts on Mac
2306 OS X 10.6. */
2307 if ((mask_min ^ mask_max) & MAC_FONT_TRAIT_BOLD)
2308 {
2309 CFNumberRef format =
2310 mac_font_descriptor_copy_attribute (desc,
2311 MAC_FONT_FORMAT_ATTRIBUTE);
2312
2313 if (format)
2314 {
2315 uint32_t format_val;
2316
2317 if (CFNumberGetValue (format, kCFNumberSInt32Type,
2318 &format_val)
2319 && format_val == MAC_FONT_FORMAT_BITMAP)
2320 mask_max &= ~MAC_FONT_TRAIT_BOLD;
2321 }
2322 }
2323 if (spacing >= 0)
2324 mask_min |= (mask_max & MAC_FONT_TRAIT_MONO_SPACE);
2325
2326 for (mmask = (mask_min & MAC_FONT_TRAIT_MONO_SPACE);
2327 mmask <= (mask_max & MAC_FONT_TRAIT_MONO_SPACE);
2328 mmask += MAC_FONT_TRAIT_MONO_SPACE)
2329 for (bmask = (mask_min & MAC_FONT_TRAIT_BOLD);
2330 bmask <= (mask_max & MAC_FONT_TRAIT_BOLD);
2331 bmask += MAC_FONT_TRAIT_BOLD)
2332 for (imask = (mask_min & MAC_FONT_TRAIT_ITALIC);
2333 imask <= (mask_max & MAC_FONT_TRAIT_ITALIC);
2334 imask += MAC_FONT_TRAIT_ITALIC)
2335 {
2336 FontSymbolicTraits synth = (imask | bmask | mmask);
2337
2338 if (synth == 0
2339 || j == macfont_closest_traits_index (traits_array,
2340 (sym_traits | synth)))
2341 {
2342 entity = macfont_descriptor_entity (desc, extra, synth);
2343 if (! NILP (entity))
2344 val = Fcons (entity, val);
2345 }
2346 }
2347 }
2348
2349 CFRelease (traits_array);
2350 CFRelease (descs);
2351 }
2352
2353 CFRelease (families);
2354 val = Fnreverse (val);
2355 goto finish;
2356 err:
2357 val = Qnil;
2358
2359 finish:
2360 FONT_ADD_LOG ("macfont-list", spec, val);
2361 if (charset) CFRelease (charset);
2362 if (languages) CFRelease (languages);
2363 if (attributes) CFRelease (attributes);
2364 if (family_name) CFRelease (family_name);
2365
2366 unblock_input ();
2367
2368 return val;
2369 }
2370
2371 static Lisp_Object
2372 macfont_match (struct frame * frame, Lisp_Object spec)
2373 {
2374 Lisp_Object entity = Qnil;
2375 CFMutableDictionaryRef attributes;
2376 FontDescriptorRef pat_desc = NULL, desc = NULL;
2377
2378 block_input ();
2379
2380 attributes = macfont_create_attributes_with_spec (spec);
2381 if (attributes)
2382 {
2383 pat_desc = mac_font_descriptor_create_with_attributes (attributes);
2384 CFRelease (attributes);
2385 }
2386 if (pat_desc)
2387 {
2388 desc = mac_font_descriptor_create_matching_font_descriptor (pat_desc,
2389 NULL);
2390 CFRelease (pat_desc);
2391 }
2392 if (desc)
2393 {
2394 entity = macfont_descriptor_entity (desc, AREF (spec, FONT_EXTRA_INDEX),
2395 0);
2396 CFRelease (desc);
2397 }
2398 unblock_input ();
2399
2400 FONT_ADD_LOG ("macfont-match", spec, entity);
2401 return entity;
2402 }
2403
2404 static Lisp_Object
2405 macfont_list_family (struct frame *frame)
2406 {
2407 Lisp_Object list = Qnil;
2408 CFArrayRef families;
2409
2410 block_input ();
2411
2412 families = mac_font_create_available_families ();
2413 if (families)
2414 {
2415 CFIndex i, count = CFArrayGetCount (families);
2416
2417 for (i = 0; i < count; i++)
2418 list = Fcons (macfont_intern_prop_cfstring (CFArrayGetValueAtIndex (families, i)), list);
2419 CFRelease (families);
2420 }
2421
2422 unblock_input ();
2423
2424 return list;
2425 }
2426
2427 static void
2428 macfont_free_entity (Lisp_Object entity)
2429 {
2430 Lisp_Object val = assq_no_quit (QCfont_entity,
2431 AREF (entity, FONT_EXTRA_INDEX));
2432 CFStringRef name = XSAVE_POINTER (XCDR (val), 0);
2433
2434 block_input ();
2435 CFRelease (name);
2436 unblock_input ();
2437 }
2438
2439 static Lisp_Object
2440 macfont_open (struct frame * f, Lisp_Object entity, int pixel_size)
2441 {
2442 Lisp_Object val, font_object;
2443 CFStringRef font_name;
2444 struct macfont_info *macfont_info = NULL;
2445 struct font *font;
2446 int size;
2447 FontRef macfont;
2448 FontSymbolicTraits sym_traits;
2449 char name[256];
2450 int len, i, total_width;
2451 CGGlyph glyph;
2452 CGFloat ascent, descent, leading;
2453
2454 val = assq_no_quit (QCfont_entity, AREF (entity, FONT_EXTRA_INDEX));
2455 if (! CONSP (val)
2456 || XTYPE (XCDR (val)) != Lisp_Misc
2457 || XMISCTYPE (XCDR (val)) != Lisp_Misc_Save_Value)
2458 return Qnil;
2459 font_name = XSAVE_POINTER (XCDR (val), 0);
2460 sym_traits = XSAVE_INTEGER (XCDR (val), 1);
2461
2462 size = XINT (AREF (entity, FONT_SIZE_INDEX));
2463 if (size == 0)
2464 size = pixel_size;
2465
2466 block_input ();
2467 macfont = mac_font_create_with_name (font_name, size);
2468 if (macfont)
2469 {
2470 int fontsize = (int) [((NSFont *) macfont) pointSize];
2471 if (fontsize != size) size = fontsize;
2472 }
2473 unblock_input ();
2474 if (! macfont)
2475 return Qnil;
2476
2477 font_object = font_make_object (VECSIZE (struct macfont_info), entity, size);
2478 ASET (font_object, FONT_TYPE_INDEX, macfont_driver.type);
2479 len = font_unparse_xlfd (entity, size, name, 256);
2480 if (len > 0)
2481 ASET (font_object, FONT_NAME_INDEX, make_string (name, len));
2482 len = font_unparse_fcname (entity, size, name, 256);
2483 if (len > 0)
2484 ASET (font_object, FONT_FULLNAME_INDEX, make_string (name, len));
2485 else
2486 ASET (font_object, FONT_FULLNAME_INDEX,
2487 AREF (font_object, FONT_NAME_INDEX));
2488 font = XFONT_OBJECT (font_object);
2489 font->pixel_size = size;
2490 font->driver = &macfont_driver;
2491 font->encoding_charset = font->repertory_charset = -1;
2492
2493 block_input ();
2494
2495 macfont_info = (struct macfont_info *) font;
2496 macfont_info->macfont = macfont;
2497 macfont_info->cgfont = mac_font_copy_graphics_font (macfont);
2498
2499 val = assq_no_quit (QCdestination, AREF (entity, FONT_EXTRA_INDEX));
2500 if (CONSP (val) && EQ (XCDR (val), make_number (1)))
2501 macfont_info->screen_font = mac_screen_font_create_with_name (font_name,
2502 size);
2503 else
2504 macfont_info->screen_font = NULL;
2505 macfont_info->cache = macfont_lookup_cache (font_name);
2506 macfont_retain_cache (macfont_info->cache);
2507 macfont_info->metrics = NULL;
2508 macfont_info->metrics_nrows = 0;
2509 macfont_info->synthetic_italic_p = 0;
2510 macfont_info->synthetic_bold_p = 0;
2511 macfont_info->spacing = MACFONT_SPACING_PROPORTIONAL;
2512 macfont_info->antialias = MACFONT_ANTIALIAS_DEFAULT;
2513 if (!(sym_traits & MAC_FONT_TRAIT_ITALIC)
2514 && FONT_SLANT_NUMERIC (entity) == FONT_SLANT_SYNTHETIC_ITALIC)
2515 macfont_info->synthetic_italic_p = 1;
2516 if (!(sym_traits & MAC_FONT_TRAIT_BOLD)
2517 && FONT_WEIGHT_NUMERIC (entity) == FONT_WEIGHT_SYNTHETIC_BOLD)
2518 macfont_info->synthetic_bold_p = 1;
2519 if (sym_traits & MAC_FONT_TRAIT_MONO_SPACE)
2520 macfont_info->spacing = MACFONT_SPACING_MONO;
2521 else if (INTEGERP (AREF (entity, FONT_SPACING_INDEX))
2522 && (XINT (AREF (entity, FONT_SPACING_INDEX))
2523 == FONT_SPACING_SYNTHETIC_MONO))
2524 macfont_info->spacing = MACFONT_SPACING_SYNTHETIC_MONO;
2525 if (macfont_info->synthetic_italic_p || macfont_info->synthetic_bold_p)
2526 macfont_info->antialias = MACFONT_ANTIALIAS_ON;
2527 else
2528 {
2529 val = assq_no_quit (QCantialias, AREF (entity, FONT_EXTRA_INDEX));
2530 if (CONSP (val))
2531 macfont_info->antialias =
2532 NILP (XCDR (val)) ? MACFONT_ANTIALIAS_OFF : MACFONT_ANTIALIAS_ON;
2533 }
2534 macfont_info->color_bitmap_p = 0;
2535 if (sym_traits & MAC_FONT_TRAIT_COLOR_GLYPHS)
2536 macfont_info->color_bitmap_p = 1;
2537
2538 glyph = macfont_get_glyph_for_character (font, ' ');
2539 if (glyph != kCGFontIndexInvalid)
2540 font->space_width = macfont_glyph_extents (font, glyph, NULL, NULL, 0);
2541 else
2542 /* dirty workaround */
2543 font->space_width = pixel_size;
2544
2545 total_width = font->space_width;
2546 for (i = 1; i < 95; i++)
2547 {
2548 glyph = macfont_get_glyph_for_character (font, ' ' + i);
2549 if (glyph == kCGFontIndexInvalid)
2550 break;
2551 total_width += macfont_glyph_extents (font, glyph, NULL, NULL, 0);
2552 }
2553 if (i == 95)
2554 font->average_width = total_width / 95;
2555 else
2556 font->average_width = font->space_width; /* XXX */
2557
2558 if (!(macfont_info->screen_font
2559 && mac_screen_font_get_metrics (macfont_info->screen_font,
2560 &ascent, &descent, &leading)))
2561 {
2562 CFStringRef family_name;
2563
2564 ascent = mac_font_get_ascent (macfont);
2565 descent = mac_font_get_descent (macfont);
2566 leading = mac_font_get_leading (macfont);
2567 /* AppKit and WebKit do some adjustment to the heights of
2568 Courier, Helvetica, and Times. */
2569 family_name = mac_font_copy_family_name (macfont);
2570 if (family_name)
2571 {
2572 if (CFEqual (family_name, CFSTR ("Courier"))
2573 || CFEqual (family_name, CFSTR ("Helvetica"))
2574 || CFEqual (family_name, CFSTR ("Times")))
2575 ascent += (ascent + descent) * .15f;
2576 else if (CFStringHasPrefix (family_name, CFSTR ("Hiragino")))
2577 {
2578 leading *= .25f;
2579 ascent += leading;
2580 }
2581 CFRelease (family_name);
2582 }
2583 }
2584 font->ascent = ascent + 0.5f;
2585 val = assq_no_quit (QCminspace, AREF (entity, FONT_EXTRA_INDEX));
2586 if (CONSP (val) && !NILP (XCDR (val)))
2587 font->descent = descent + 0.5f;
2588 else
2589 font->descent = descent + leading + 0.5f;
2590 font->height = font->ascent + font->descent;
2591
2592 font->underline_position = - mac_font_get_underline_position (macfont) + 0.5f;
2593 font->underline_thickness = mac_font_get_underline_thickness (macfont) + 0.5f;
2594
2595 unblock_input ();
2596
2597 /* Unfortunately Xft doesn't provide a way to get minimum char
2598 width. So, we use space_width instead. */
2599 font->min_width = font->max_width = font->space_width; /* XXX */
2600
2601 font->baseline_offset = 0;
2602 font->relative_compose = 0;
2603 font->default_ascent = 0;
2604 font->vertical_centering = 0;
2605
2606 return font_object;
2607 }
2608
2609 static void
2610 macfont_close (struct font *font)
2611 {
2612 struct macfont_info *macfont_info = (struct macfont_info *) font;
2613 int i;
2614
2615 block_input ();
2616 CFRelease (macfont_info->macfont);
2617 CGFontRelease (macfont_info->cgfont);
2618 if (macfont_info->screen_font)
2619 CFRelease (macfont_info->screen_font);
2620 macfont_release_cache (macfont_info->cache);
2621 for (i = 0; i < macfont_info->metrics_nrows; i++)
2622 if (macfont_info->metrics[i])
2623 xfree (macfont_info->metrics[i]);
2624 if (macfont_info->metrics)
2625 xfree (macfont_info->metrics);
2626 unblock_input ();
2627 }
2628
2629 static int
2630 macfont_has_char (Lisp_Object font, int c)
2631 {
2632 int result;
2633 CFCharacterSetRef charset;
2634
2635 block_input ();
2636 if (FONT_ENTITY_P (font))
2637 {
2638 Lisp_Object val;
2639 CFStringRef name;
2640
2641 val = assq_no_quit (QCfont_entity, AREF (font, FONT_EXTRA_INDEX));
2642 val = XCDR (val);
2643 name = XSAVE_POINTER (val, 0);
2644 charset = macfont_get_cf_charset_for_name (name);
2645 }
2646 else
2647 charset = macfont_get_cf_charset (XFONT_OBJECT (font));
2648
2649 result = CFCharacterSetIsLongCharacterMember (charset, c);
2650 unblock_input ();
2651
2652 return result;
2653 }
2654
2655 static unsigned
2656 macfont_encode_char (struct font *font, int c)
2657 {
2658 struct macfont_info *macfont_info = (struct macfont_info *) font;
2659 CGGlyph glyph;
2660
2661 block_input ();
2662 glyph = macfont_get_glyph_for_character (font, c);
2663 unblock_input ();
2664
2665 return glyph != kCGFontIndexInvalid ? glyph : FONT_INVALID_CODE;
2666 }
2667
2668 static int
2669 macfont_text_extents (struct font *font, unsigned int *code, int nglyphs,
2670 struct font_metrics *metrics)
2671 {
2672 int width, i;
2673
2674 block_input ();
2675 width = macfont_glyph_extents (font, code[0], metrics, NULL, 0);
2676 for (i = 1; i < nglyphs; i++)
2677 {
2678 struct font_metrics m;
2679 int w = macfont_glyph_extents (font, code[i], metrics ? &m : NULL,
2680 NULL, 0);
2681
2682 if (metrics)
2683 {
2684 if (width + m.lbearing < metrics->lbearing)
2685 metrics->lbearing = width + m.lbearing;
2686 if (width + m.rbearing > metrics->rbearing)
2687 metrics->rbearing = width + m.rbearing;
2688 if (m.ascent > metrics->ascent)
2689 metrics->ascent = m.ascent;
2690 if (m.descent > metrics->descent)
2691 metrics->descent = m.descent;
2692 }
2693 width += w;
2694 }
2695 unblock_input ();
2696
2697 if (metrics)
2698 metrics->width = width;
2699
2700 return width;
2701 }
2702
2703 static int
2704 macfont_draw (struct glyph_string *s, int from, int to, int x, int y,
2705 bool with_background)
2706 {
2707 struct frame * f = s->f;
2708 struct macfont_info *macfont_info = (struct macfont_info *) s->font;
2709 CGRect background_rect;
2710 CGPoint text_position;
2711 CGGlyph *glyphs;
2712 CGPoint *positions;
2713 CGFloat font_size = mac_font_get_size (macfont_info->macfont);
2714 bool no_antialias_p =
2715 (macfont_info->antialias == MACFONT_ANTIALIAS_OFF
2716 || (macfont_info->antialias == MACFONT_ANTIALIAS_DEFAULT
2717 && font_size <= macfont_antialias_threshold));
2718 int len = to - from;
2719 struct face *face = s->face;
2720 CGContextRef context;
2721
2722 block_input ();
2723
2724 if (with_background)
2725 background_rect = CGRectMake (x, y - FONT_BASE (s->font),
2726 s->width, FONT_HEIGHT (s->font));
2727 else
2728 background_rect = CGRectNull;
2729
2730 text_position = CGPointMake (x, -y);
2731 glyphs = xmalloc (sizeof (CGGlyph) * len);
2732 {
2733 CGFloat advance_delta;
2734 int i;
2735 CGFloat total_width = 0;
2736
2737 positions = xmalloc (sizeof (CGPoint) * len);
2738 for (i = 0; i < len; i++)
2739 {
2740 int width;
2741
2742 glyphs[i] = s->char2b[from + i];
2743 width = (s->padding_p ? 1
2744 : macfont_glyph_extents (s->font, glyphs[i],
2745 NULL, &advance_delta,
2746 no_antialias_p));
2747 positions[i].x = total_width + advance_delta;
2748 positions[i].y = 0;
2749 total_width += width;
2750 }
2751 }
2752
2753 context = [[NSGraphicsContext currentContext] graphicsPort];
2754 CGContextSaveGState (context);
2755
2756 if (!CGRectIsNull (background_rect))
2757 {
2758 if (s->hl == DRAW_MOUSE_FACE)
2759 {
2760 face = FACE_FROM_ID (s->f, MOUSE_HL_INFO (s->f)->mouse_face_face_id);
2761 if (!face)
2762 face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
2763 }
2764 CG_SET_FILL_COLOR_WITH_FACE_BACKGROUND (context, face, f);
2765 CGContextFillRects (context, &background_rect, 1);
2766 }
2767
2768 if (macfont_info->cgfont)
2769 {
2770 CGAffineTransform atfm;
2771 CGContextScaleCTM (context, 1, -1);
2772 CG_SET_FILL_COLOR_WITH_FACE_FOREGROUND (context, face, s->f);
2773 if (macfont_info->synthetic_italic_p)
2774 atfm = synthetic_italic_atfm;
2775 else
2776 atfm = CGAffineTransformIdentity;
2777 if (macfont_info->synthetic_bold_p)
2778 {
2779 CGContextSetTextDrawingMode (context, kCGTextFillStroke);
2780 CGContextSetLineWidth (context, synthetic_bold_factor * font_size);
2781 CG_SET_STROKE_COLOR_WITH_FACE_FOREGROUND (context, face, f);
2782 }
2783 if (no_antialias_p)
2784 CGContextSetShouldAntialias (context, false);
2785
2786 CGContextSetTextMatrix (context, atfm);
2787 CGContextSetTextPosition (context, text_position.x, text_position.y);
2788
2789 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
2790 if (macfont_info->color_bitmap_p
2791 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1070
2792 && CTFontDrawGlyphs != NULL
2793 #endif
2794 )
2795 {
2796 if (len > 0)
2797 {
2798 CTFontDrawGlyphs (macfont_info->macfont, glyphs, positions, len,
2799 context);
2800 }
2801 }
2802 else
2803 #endif /* MAC_OS_X_VERSION_MAX_ALLOWED >= 1070 */
2804 {
2805 CGContextSetFont (context, macfont_info->cgfont);
2806 CGContextSetFontSize (context, font_size);
2807 CGContextShowGlyphsAtPositions (context, glyphs, positions, len);
2808 }
2809 }
2810
2811
2812 xfree (glyphs);
2813 CGContextRestoreGState (context);
2814
2815 unblock_input ();
2816
2817 return len;
2818 }
2819
2820 static Lisp_Object
2821 macfont_shape (Lisp_Object lgstring)
2822 {
2823 struct font *font;
2824 struct macfont_info *macfont_info;
2825 FontRef macfont;
2826 ptrdiff_t glyph_len, len, i, j;
2827 CFIndex nonbmp_len;
2828 UniChar *unichars;
2829 CFIndex *nonbmp_indices;
2830 CFStringRef string;
2831 CFIndex used = 0;
2832 struct mac_glyph_layout *glyph_layouts;
2833
2834 CHECK_FONT_GET_OBJECT (LGSTRING_FONT (lgstring), font);
2835 macfont_info = (struct macfont_info *) font;
2836 macfont = macfont_info->macfont;
2837
2838 glyph_len = LGSTRING_GLYPH_LEN (lgstring);
2839 nonbmp_len = 0;
2840 for (i = 0; i < glyph_len; i++)
2841 {
2842 Lisp_Object lglyph = LGSTRING_GLYPH (lgstring, i);
2843
2844 if (NILP (lglyph))
2845 break;
2846 if (LGLYPH_CHAR (lglyph) >= 0x10000)
2847 nonbmp_len++;
2848 }
2849
2850 len = i;
2851
2852 if (INT_MAX / 2 < len)
2853 memory_full (SIZE_MAX);
2854
2855 unichars = alloca (sizeof (UniChar) * (len + nonbmp_len));
2856 nonbmp_indices = alloca (sizeof (CFIndex) * (nonbmp_len + 1));
2857 for (i = j = 0; i < len; i++)
2858 {
2859 UTF32Char c = LGLYPH_CHAR (LGSTRING_GLYPH (lgstring, i));
2860
2861 if (macfont_store_utf32char_to_unichars (c, unichars + i + j) > 1)
2862 {
2863 nonbmp_indices[j] = i + j;
2864 j++;
2865 }
2866 }
2867 nonbmp_indices[j] = len + j; /* sentinel */
2868
2869 block_input ();
2870
2871 string = CFStringCreateWithCharactersNoCopy (NULL, unichars, len + nonbmp_len,
2872 kCFAllocatorNull);
2873 if (string)
2874 {
2875 glyph_layouts = alloca (sizeof (struct mac_glyph_layout) * glyph_len);
2876 if (macfont_info->screen_font)
2877 used = mac_screen_font_shape (macfont_info->screen_font, string,
2878 glyph_layouts, glyph_len);
2879 else
2880 used = mac_font_shape (macfont, string, glyph_layouts, glyph_len);
2881 CFRelease (string);
2882 }
2883
2884 unblock_input ();
2885
2886 if (used == 0)
2887 return Qnil;
2888
2889 block_input ();
2890
2891 for (i = 0; i < used; i++)
2892 {
2893 Lisp_Object lglyph = LGSTRING_GLYPH (lgstring, i);
2894 struct mac_glyph_layout *gl = glyph_layouts + i;
2895 EMACS_INT from, to;
2896 struct font_metrics metrics;
2897 int xoff, yoff, wadjust;
2898
2899 if (NILP (lglyph))
2900 {
2901 lglyph = Fmake_vector (make_number (LGLYPH_SIZE), Qnil);
2902 LGSTRING_SET_GLYPH (lgstring, i, lglyph);
2903 }
2904
2905 from = gl->comp_range.location;
2906 /* Convert UTF-16 index to UTF-32. */
2907 j = 0;
2908 while (nonbmp_indices[j] < from)
2909 j++;
2910 from -= j;
2911 LGLYPH_SET_FROM (lglyph, from);
2912
2913 to = gl->comp_range.location + gl->comp_range.length;
2914 /* Convert UTF-16 index to UTF-32. */
2915 while (nonbmp_indices[j] < to)
2916 j++;
2917 to -= j;
2918 LGLYPH_SET_TO (lglyph, to - 1);
2919
2920 /* LGLYPH_CHAR is used in `describe-char' for checking whether
2921 the composition is trivial. */
2922 {
2923 UTF32Char c;
2924
2925 if (unichars[gl->string_index] >= 0xD800
2926 && unichars[gl->string_index] < 0xDC00)
2927 c = (((unichars[gl->string_index] - 0xD800) << 10)
2928 + (unichars[gl->string_index + 1] - 0xDC00) + 0x10000);
2929 else
2930 c = unichars[gl->string_index];
2931 if (macfont_get_glyph_for_character (font, c) != gl->glyph_id)
2932 c = 0;
2933 LGLYPH_SET_CHAR (lglyph, c);
2934 }
2935
2936 {
2937 unsigned long cc = gl->glyph_id;
2938 LGLYPH_SET_CODE (lglyph, cc);
2939 }
2940
2941 macfont_glyph_extents (font, gl->glyph_id, &metrics, NULL, 0);
2942 LGLYPH_SET_WIDTH (lglyph, metrics.width);
2943 LGLYPH_SET_LBEARING (lglyph, metrics.lbearing);
2944 LGLYPH_SET_RBEARING (lglyph, metrics.rbearing);
2945 LGLYPH_SET_ASCENT (lglyph, metrics.ascent);
2946 LGLYPH_SET_DESCENT (lglyph, metrics.descent);
2947
2948 xoff = lround (gl->advance_delta);
2949 yoff = lround (- gl->baseline_delta);
2950 wadjust = lround (gl->advance);
2951 if (xoff != 0 || yoff != 0 || wadjust != metrics.width)
2952 {
2953 Lisp_Object vec;
2954
2955 vec = Fmake_vector (make_number (3), Qnil);
2956 ASET (vec, 0, make_number (xoff));
2957 ASET (vec, 1, make_number (yoff));
2958 ASET (vec, 2, make_number (wadjust));
2959 LGLYPH_SET_ADJUSTMENT (lglyph, vec);
2960 }
2961 }
2962
2963 unblock_input ();
2964
2965 return make_number (used);
2966 }
2967
2968 /* Structures for the UVS subtable (format 14) in the cmap table. */
2969 typedef UInt8 UINT24[3];
2970
2971 #pragma pack(push, 1)
2972 struct variation_selector_record
2973 {
2974 UINT24 var_selector;
2975 UInt32 default_uvs_offset, non_default_uvs_offset;
2976 };
2977 struct uvs_table
2978 {
2979 UInt16 format;
2980 UInt32 length, num_var_selector_records;
2981 struct variation_selector_record variation_selector_records[1];
2982 };
2983 #define SIZEOF_UVS_TABLE_HEADER \
2984 (sizeof (struct uvs_table) - sizeof (struct variation_selector_record))
2985
2986 struct unicode_value_range
2987 {
2988 UINT24 start_unicode_value;
2989 UInt8 additional_count;
2990 };
2991 struct default_uvs_table {
2992 UInt32 num_unicode_value_ranges;
2993 struct unicode_value_range unicode_value_ranges[1];
2994 };
2995 #define SIZEOF_DEFAULT_UVS_TABLE_HEADER \
2996 (sizeof (struct default_uvs_table) - sizeof (struct unicode_value_range))
2997
2998 struct uvs_mapping
2999 {
3000 UINT24 unicode_value;
3001 UInt16 glyph_id;
3002 };
3003 struct non_default_uvs_table
3004 {
3005 UInt32 num_uvs_mappings;
3006 struct uvs_mapping uvs_mappings[1];
3007 };
3008 #define SIZEOF_NON_DEFAULT_UVS_TABLE_HEADER \
3009 (sizeof (struct non_default_uvs_table) - sizeof (struct uvs_mapping))
3010 #pragma pack(pop)
3011
3012 /* Read big endian values. The argument LVAL must be an lvalue. */
3013 /* I suppose OSReadBigInt* takes care of unaligned data. At least, we
3014 can find "... = OSReadBigInt32(cdb, 2);" followed by "... =
3015 OSReadBigInt16(cdb, 7);" in a sample code by Apple. */
3016 #define BUINT8_VALUE(lval) (*((UInt8 *) &(lval)))
3017 #define BUINT16_VALUE(lval) OSReadBigInt16 (&(lval), 0)
3018 /* Succeeding one byte should also be accessible. */
3019 #define BUINT24_VALUE(lval) (OSReadBigInt32 (&(lval), 0) >> 8)
3020 #define BUINT32_VALUE(lval) OSReadBigInt32 (&(lval), 0)
3021
3022 /* Return UVS subtable for the specified FONT. If the subtable is not
3023 found or ill-formatted, then return NULL. */
3024
3025 static CFDataRef
3026 mac_font_copy_uvs_table (FontRef font)
3027 {
3028 CFDataRef cmap_table, uvs_table = NULL;
3029
3030 cmap_table = mac_font_copy_non_synthetic_table (font, cmapFontTableTag);
3031 if (cmap_table)
3032 {
3033 sfntCMapHeader *cmap = (sfntCMapHeader *) CFDataGetBytePtr (cmap_table);
3034 struct uvs_table *uvs;
3035 struct variation_selector_record *records;
3036 UInt32 cmap_len, ntables, i, uvs_offset, uvs_len, nrecords;
3037
3038 #if __LP64__
3039 if (CFDataGetLength (cmap_table) > UINT32_MAX)
3040 goto finish;
3041 #endif
3042
3043 cmap_len = CFDataGetLength (cmap_table);
3044 if (sizeof_sfntCMapHeader > cmap_len)
3045 goto finish;
3046
3047 ntables = BUINT16_VALUE (cmap->numTables);
3048 if (ntables > ((cmap_len - sizeof_sfntCMapHeader)
3049 / sizeof_sfntCMapEncoding))
3050 goto finish;
3051
3052 for (i = 0; i < ntables; i++)
3053 if ((BUINT16_VALUE (cmap->encoding[i].platformID)
3054 == kFontUnicodePlatform)
3055 && (BUINT16_VALUE (cmap->encoding[i].scriptID)
3056 == 5)) /* kFontUnicodeV4_0VariationSequenceSemantics */
3057 {
3058 uvs_offset = BUINT32_VALUE (cmap->encoding[i].offset);
3059 break;
3060 }
3061 if (i == ntables
3062 || uvs_offset > cmap_len
3063 || SIZEOF_UVS_TABLE_HEADER > cmap_len - uvs_offset)
3064 goto finish;
3065
3066 uvs = (struct uvs_table *) ((UInt8 *) cmap + uvs_offset);
3067 uvs_len = BUINT32_VALUE (uvs->length);
3068 if (uvs_len > cmap_len - uvs_offset
3069 || SIZEOF_UVS_TABLE_HEADER > uvs_len)
3070 goto finish;
3071
3072 if (BUINT16_VALUE (uvs->format) != 14)
3073 goto finish;
3074
3075 nrecords = BUINT32_VALUE (uvs->num_var_selector_records);
3076 if (nrecords > ((uvs_len - SIZEOF_UVS_TABLE_HEADER)
3077 / sizeof (struct variation_selector_record)))
3078 goto finish;
3079
3080 records = uvs->variation_selector_records;
3081 for (i = 0; i < nrecords; i++)
3082 {
3083 UInt32 default_uvs_offset, non_default_uvs_offset;
3084
3085 default_uvs_offset = BUINT32_VALUE (records[i].default_uvs_offset);
3086 if (default_uvs_offset)
3087 {
3088 struct default_uvs_table *default_uvs;
3089 UInt32 nranges;
3090
3091 if (default_uvs_offset > uvs_len
3092 || (SIZEOF_DEFAULT_UVS_TABLE_HEADER
3093 > uvs_len - default_uvs_offset))
3094 goto finish;
3095
3096 default_uvs = ((struct default_uvs_table *)
3097 ((UInt8 *) uvs + default_uvs_offset));
3098 nranges = BUINT32_VALUE (default_uvs->num_unicode_value_ranges);
3099 if (nranges > ((uvs_len - default_uvs_offset
3100 - SIZEOF_DEFAULT_UVS_TABLE_HEADER)
3101 / sizeof (struct unicode_value_range)))
3102 goto finish;
3103 /* Now 2 * nranges can't overflow, so we can safely use
3104 `(lo + hi) / 2' instead of `lo + (hi - lo) / 2' in
3105 mac_font_get_glyphs_for_variants. */
3106 }
3107
3108 non_default_uvs_offset =
3109 BUINT32_VALUE (records[i].non_default_uvs_offset);
3110 if (non_default_uvs_offset)
3111 {
3112 struct non_default_uvs_table *non_default_uvs;
3113 UInt32 nmappings;
3114
3115 if (non_default_uvs_offset > uvs_len
3116 || (SIZEOF_NON_DEFAULT_UVS_TABLE_HEADER
3117 > uvs_len - non_default_uvs_offset))
3118 goto finish;
3119
3120 non_default_uvs = ((struct non_default_uvs_table *)
3121 ((UInt8 *) uvs + non_default_uvs_offset));
3122 nmappings = BUINT32_VALUE (non_default_uvs->num_uvs_mappings);
3123 if (nmappings > ((uvs_len - non_default_uvs_offset
3124 - SIZEOF_NON_DEFAULT_UVS_TABLE_HEADER)
3125 / sizeof (struct uvs_mapping)))
3126 goto finish;
3127 /* Now 2 * nmappings can't overflow, so we can safely
3128 use `(lo + hi) / 2' instead of `lo + (hi - lo) / 2'
3129 in mac_font_get_glyphs_for_variants. */
3130 }
3131 }
3132
3133 uvs_table = CFDataCreate (NULL, (UInt8 *) uvs, uvs_len);
3134
3135 finish:
3136 CFRelease (cmap_table);
3137 }
3138
3139 return uvs_table;
3140 }
3141
3142 /* Find an entry in the given UVS subtable UVS_TABLE for a variation
3143 sequence consisting of the given base character C and each
3144 variation selector SELECTORS[i] for 0 <= i < COUNT, and store the
3145 result (explained below) into the corresponding GLYPHS[i]. If the
3146 entry is found in the Default UVS Table, then the result is 0. If
3147 the entry is found in the Non-Default UVS Table, then the result is
3148 the associated glyph ID. Otherwise, kCGFontIndexInvalid. The
3149 elements in SELECTORS must be sorted in strictly increasing
3150 order. */
3151
3152 static void
3153 mac_font_get_glyphs_for_variants (CFDataRef uvs_table, UTF32Char c,
3154 const UTF32Char selectors[], CGGlyph glyphs[],
3155 CFIndex count)
3156 {
3157 struct uvs_table *uvs = (struct uvs_table *) CFDataGetBytePtr (uvs_table);
3158 struct variation_selector_record *records = uvs->variation_selector_records;
3159 CFIndex i;
3160 UInt32 ir, nrecords;
3161 #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
3162 dispatch_queue_t queue =
3163 dispatch_get_global_queue (DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
3164 dispatch_group_t group = dispatch_group_create ();
3165 #endif
3166
3167 nrecords = BUINT32_VALUE (uvs->num_var_selector_records);
3168 i = 0;
3169 ir = 0;
3170 while (i < count && ir < nrecords)
3171 {
3172 UInt32 default_uvs_offset, non_default_uvs_offset;
3173
3174 if (selectors[i] < BUINT24_VALUE (records[ir].var_selector))
3175 {
3176 glyphs[i++] = kCGFontIndexInvalid;
3177 continue;
3178 }
3179 else if (selectors[i] > BUINT24_VALUE (records[ir].var_selector))
3180 {
3181 ir++;
3182 continue;
3183 }
3184
3185 /* selectors[i] == BUINT24_VALUE (records[ir].var_selector) */
3186 default_uvs_offset = BUINT32_VALUE (records[ir].default_uvs_offset);
3187 non_default_uvs_offset =
3188 BUINT32_VALUE (records[ir].non_default_uvs_offset);
3189 #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
3190 dispatch_group_async (group, queue, ^{
3191 #endif
3192 glyphs[i] = kCGFontIndexInvalid;
3193
3194 if (default_uvs_offset)
3195 {
3196 struct default_uvs_table *default_uvs =
3197 (struct default_uvs_table *) ((UInt8 *) uvs
3198 + default_uvs_offset);
3199 struct unicode_value_range *ranges =
3200 default_uvs->unicode_value_ranges;
3201 UInt32 lo, hi;
3202
3203 lo = 0;
3204 hi = BUINT32_VALUE (default_uvs->num_unicode_value_ranges);
3205 while (lo < hi)
3206 {
3207 UInt32 mid = (lo + hi) / 2;
3208
3209 if (c < BUINT24_VALUE (ranges[mid].start_unicode_value))
3210 hi = mid;
3211 else
3212 lo = mid + 1;
3213 }
3214 if (hi > 0
3215 && (c <= (BUINT24_VALUE (ranges[hi - 1].start_unicode_value)
3216 + BUINT8_VALUE (ranges[hi - 1].additional_count))))
3217 glyphs[i] = 0;
3218 }
3219
3220 if (glyphs[i] == kCGFontIndexInvalid && non_default_uvs_offset)
3221 {
3222 struct non_default_uvs_table *non_default_uvs =
3223 (struct non_default_uvs_table *) ((UInt8 *) uvs
3224 + non_default_uvs_offset);
3225 struct uvs_mapping *mappings = non_default_uvs->uvs_mappings;
3226 UInt32 lo, hi;
3227
3228 lo = 0;
3229 hi = BUINT32_VALUE (non_default_uvs->num_uvs_mappings);
3230 while (lo < hi)
3231 {
3232 UInt32 mid = (lo + hi) / 2;
3233
3234 if (c < BUINT24_VALUE (mappings[mid].unicode_value))
3235 hi = mid;
3236 else
3237 lo = mid + 1;
3238 }
3239 if (hi > 0 &&
3240 BUINT24_VALUE (mappings[hi - 1].unicode_value) == c)
3241 glyphs[i] = BUINT16_VALUE (mappings[hi - 1].glyph_id);
3242 }
3243 #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
3244 });
3245 #endif
3246 i++;
3247 ir++;
3248 }
3249 while (i < count)
3250 glyphs[i++] = kCGFontIndexInvalid;
3251 #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
3252 dispatch_group_wait (group, DISPATCH_TIME_FOREVER);
3253 dispatch_release (group);
3254 #endif
3255 }
3256
3257 static int
3258 macfont_variation_glyphs (struct font *font, int c, unsigned variations[256])
3259 {
3260 CFDataRef uvs_table;
3261 CharacterCollection uvs_collection;
3262 int i, n = 0;
3263
3264 block_input ();
3265 uvs_table = macfont_get_uvs_table (font, &uvs_collection);
3266
3267 if (uvs_table)
3268 {
3269 UTF32Char selectors[256];
3270 CGGlyph glyphs[256];
3271
3272 for (i = 0; i < 16; i++)
3273 selectors[i] = 0xFE00 + i;
3274 for (; i < 256; i++)
3275 selectors[i] = 0xE0100 + (i - 16);
3276 mac_font_get_glyphs_for_variants (uvs_table, c, selectors, glyphs, 256);
3277 for (i = 0; i < 256; i++)
3278 {
3279 CGGlyph glyph = glyphs[i];
3280
3281 if (uvs_collection != MAC_CHARACTER_COLLECTION_IDENTITY_MAPPING
3282 && glyph != kCGFontIndexInvalid)
3283 glyph = macfont_get_glyph_for_cid (font, uvs_collection, glyph);
3284 if (glyph == kCGFontIndexInvalid)
3285 variations[i] = 0;
3286 else
3287 {
3288 variations[i] = (glyph ? glyph
3289 : macfont_get_glyph_for_character (font, c));
3290 n++;
3291 }
3292 }
3293 }
3294 unblock_input ();
3295
3296 return n;
3297 }
3298
3299 static const char *const macfont_booleans[] = {
3300 ":antialias",
3301 ":minspace",
3302 NULL,
3303 };
3304
3305 static const char *const macfont_non_booleans[] = {
3306 ":lang",
3307 ":script",
3308 ":destination",
3309 NULL,
3310 };
3311
3312 static void
3313 macfont_filter_properties (Lisp_Object font, Lisp_Object alist)
3314 {
3315 font_filter_properties (font, alist, macfont_booleans, macfont_non_booleans);
3316 }
3317
3318 static Boolean
3319 mac_ctfont_descriptor_supports_languages (CTFontDescriptorRef descriptor,
3320 CFArrayRef languages)
3321 {
3322 Boolean result = true;
3323 CFArrayRef desc_languages =
3324 CTFontDescriptorCopyAttribute (descriptor, kCTFontLanguagesAttribute);
3325
3326 if (desc_languages == NULL)
3327 result = false;
3328 else
3329 {
3330 CFIndex desc_languages_count, i, languages_count;
3331
3332 desc_languages_count = CFArrayGetCount (desc_languages);
3333 languages_count = CFArrayGetCount (languages);
3334 for (i = 0; i < languages_count; i++)
3335 if (!CFArrayContainsValue (desc_languages,
3336 CFRangeMake (0, desc_languages_count),
3337 CFArrayGetValueAtIndex (languages, i)))
3338 {
3339 result = false;
3340 break;
3341 }
3342 CFRelease (desc_languages);
3343 }
3344
3345 return result;
3346 }
3347
3348 static CFStringRef
3349 mac_ctfont_create_preferred_family_for_attributes (CFDictionaryRef attributes)
3350 {
3351 CFStringRef result = NULL;
3352 CFStringRef charset_string =
3353 CFDictionaryGetValue (attributes, MAC_FONT_CHARACTER_SET_STRING_ATTRIBUTE);
3354
3355 if (charset_string && CFStringGetLength (charset_string) > 0)
3356 {
3357 CFStringRef keys[] = {
3358 #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1090
3359 kCTLanguageAttributeName
3360 #else
3361 CFSTR ("NSLanguage")
3362 #endif
3363 };
3364 CFTypeRef values[] = {NULL};
3365 CFIndex num_values = 0;
3366 CFArrayRef languages
3367 = CFDictionaryGetValue (attributes, MAC_FONT_LANGUAGES_ATTRIBUTE);
3368
3369 if (languages && CFArrayGetCount (languages) > 0)
3370 {
3371 if (CTGetCoreTextVersion () >= kCTVersionNumber10_9)
3372 values[num_values++] = CFArrayGetValueAtIndex (languages, 0);
3373 else
3374 {
3375 CFCharacterSetRef charset =
3376 CFDictionaryGetValue (attributes,
3377 MAC_FONT_CHARACTER_SET_ATTRIBUTE);
3378
3379 result = mac_font_copy_default_name_for_charset_and_languages (charset, languages);
3380 }
3381 }
3382 if (result == NULL)
3383 {
3384 CFAttributedStringRef attr_string = NULL;
3385 CTLineRef ctline = NULL;
3386 CFDictionaryRef attrs
3387 = CFDictionaryCreate (NULL, (const void **) keys,
3388 (const void **) values, num_values,
3389 &kCFTypeDictionaryKeyCallBacks,
3390 &kCFTypeDictionaryValueCallBacks);
3391
3392 if (attrs)
3393 {
3394 attr_string = CFAttributedStringCreate (NULL, charset_string,
3395 attrs);
3396 CFRelease (attrs);
3397 }
3398 if (attr_string)
3399 {
3400 ctline = CTLineCreateWithAttributedString (attr_string);
3401 CFRelease (attr_string);
3402 }
3403 if (ctline)
3404 {
3405 CFArrayRef runs = CTLineGetGlyphRuns (ctline);
3406 CFIndex i, nruns = CFArrayGetCount (runs);
3407 CTFontRef font;
3408
3409 for (i = 0; i < nruns; i++)
3410 {
3411 CTRunRef run = CFArrayGetValueAtIndex (runs, i);
3412 CFDictionaryRef attributes = CTRunGetAttributes (run);
3413 CTFontRef font_in_run;
3414
3415 if (attributes == NULL)
3416 break;
3417 font_in_run =
3418 CFDictionaryGetValue (attributes, kCTFontAttributeName);
3419 if (font_in_run == NULL)
3420 break;
3421 if (i == 0)
3422 font = font_in_run;
3423 else if (!mac_ctfont_equal_in_postscript_name (font,
3424 font_in_run))
3425 break;
3426 }
3427 if (nruns > 0 && i == nruns)
3428 result = CTFontCopyAttribute (font, kCTFontFamilyNameAttribute);
3429 CFRelease (ctline);
3430 }
3431 }
3432 }
3433
3434 return result;
3435 }
3436
3437 static inline double
3438 mac_ctfont_get_advance_width_for_glyph (CTFontRef font, CGGlyph glyph)
3439 {
3440 return CTFontGetAdvancesForGlyphs (font, kCTFontDefaultOrientation,
3441 &glyph, NULL, 1);
3442 }
3443
3444 static inline CGRect
3445 mac_ctfont_get_bounding_rect_for_glyph (CTFontRef font, CGGlyph glyph)
3446 {
3447 return CTFontGetBoundingRectsForGlyphs (font, kCTFontDefaultOrientation,
3448 &glyph, NULL, 1);
3449 }
3450
3451 static CFArrayRef
3452 mac_ctfont_create_available_families (void)
3453 {
3454 CFMutableArrayRef families = NULL;
3455
3456 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
3457 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
3458 if (CTFontManagerCopyAvailableFontFamilyNames != NULL)
3459 #endif
3460 {
3461 CFArrayRef orig_families = CTFontManagerCopyAvailableFontFamilyNames ();
3462
3463 if (orig_families)
3464 {
3465 CFIndex i, count = CFArrayGetCount (orig_families);
3466
3467 families = CFArrayCreateMutable (NULL, count, &kCFTypeArrayCallBacks);
3468 if (families)
3469 for (i = 0; i < count; i++)
3470 {
3471 CFStringRef family = CFArrayGetValueAtIndex (orig_families, i);
3472
3473 if (!CFStringHasPrefix (family, CFSTR ("."))
3474 && (CTFontManagerCompareFontFamilyNames (family,
3475 CFSTR ("LastResort"),
3476 NULL)
3477 != kCFCompareEqualTo))
3478 CFArrayAppendValue (families, family);
3479 }
3480 CFRelease (orig_families);
3481 }
3482 }
3483 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
3484 else /* CTFontManagerCopyAvailableFontFamilyNames == NULL */
3485 #endif
3486 #endif /* MAC_OS_X_VERSION_MAX_ALLOWED >= 1060 */
3487 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
3488 {
3489 CTFontCollectionRef collection;
3490 CFArrayRef descs = NULL;
3491
3492 collection = CTFontCollectionCreateFromAvailableFonts (NULL);
3493 if (collection)
3494 {
3495 descs = CTFontCollectionCreateMatchingFontDescriptors (collection);
3496 CFRelease (collection);
3497 }
3498 if (descs)
3499 {
3500 CFIndex i, count = CFArrayGetCount (descs);
3501
3502 families = CFArrayCreateMutable (NULL, count, &kCFTypeArrayCallBacks);
3503 if (families)
3504 for (i = 0; i < count; i++)
3505 {
3506 FontDescriptorRef desc = CFArrayGetValueAtIndex (descs, i);
3507 CFStringRef name =
3508 mac_font_descriptor_copy_attribute (desc,
3509 MAC_FONT_FAMILY_NAME_ATTRIBUTE);
3510
3511 if (name)
3512 {
3513 CFIndex p, limit = CFArrayGetCount (families);
3514
3515 p = CFArrayBSearchValues (families, CFRangeMake (0, limit),
3516 (const void *) name,
3517 mac_font_family_compare, NULL);
3518 if (p >= limit)
3519 CFArrayAppendValue (families, name);
3520 else if (mac_font_family_compare
3521 (CFArrayGetValueAtIndex (families, p),
3522 name, NULL) != kCFCompareEqualTo)
3523 CFArrayInsertValueAtIndex (families, p, name);
3524 CFRelease (name);
3525 }
3526 }
3527 CFRelease (descs);
3528 }
3529 }
3530 #endif
3531
3532 return families;
3533 }
3534
3535 static Boolean
3536 mac_ctfont_equal_in_postscript_name (CTFontRef font1, CTFontRef font2)
3537 {
3538 Boolean result;
3539 CFStringRef name1, name2;
3540
3541 if (font1 == font2)
3542 return true;
3543
3544 result = false;
3545 name1 = CTFontCopyPostScriptName (font1);
3546 if (name1)
3547 {
3548 name2 = CTFontCopyPostScriptName (font2);
3549 if (name2)
3550 {
3551 result = CFEqual (name1, name2);
3552 CFRelease (name2);
3553 }
3554 CFRelease (name1);
3555 }
3556
3557 return result;
3558 }
3559
3560 static CTLineRef
3561 mac_ctfont_create_line_with_string_and_font (CFStringRef string,
3562 CTFontRef macfont)
3563 {
3564 CFStringRef keys[] = {kCTFontAttributeName, kCTKernAttributeName};
3565 CFTypeRef values[] = {NULL, NULL};
3566 CFDictionaryRef attributes = NULL;
3567 CFAttributedStringRef attr_string = NULL;
3568 CTLineRef ctline = NULL;
3569 float float_zero = 0.0f;
3570
3571 values[0] = macfont;
3572 values[1] = CFNumberCreate (NULL, kCFNumberFloatType, &float_zero);
3573 if (values[1])
3574 {
3575 attributes = CFDictionaryCreate (NULL, (const void **) keys,
3576 (const void **) values,
3577 ARRAYELTS (keys),
3578 &kCFTypeDictionaryKeyCallBacks,
3579 &kCFTypeDictionaryValueCallBacks);
3580 CFRelease (values[1]);
3581 }
3582 if (attributes)
3583 {
3584 attr_string = CFAttributedStringCreate (NULL, string, attributes);
3585 CFRelease (attributes);
3586 }
3587 if (attr_string)
3588 {
3589 ctline = CTLineCreateWithAttributedString (attr_string);
3590 CFRelease (attr_string);
3591 }
3592 if (ctline)
3593 {
3594 /* Abandon if ctline contains some fonts other than the
3595 specified one. */
3596 CFArrayRef runs = CTLineGetGlyphRuns (ctline);
3597 CFIndex i, nruns = CFArrayGetCount (runs);
3598
3599 for (i = 0; i < nruns; i++)
3600 {
3601 CTRunRef run = CFArrayGetValueAtIndex (runs, i);
3602 CFDictionaryRef attributes = CTRunGetAttributes (run);
3603 CTFontRef font_in_run;
3604
3605 if (attributes == NULL)
3606 break;
3607 font_in_run =
3608 CFDictionaryGetValue (attributes, kCTFontAttributeName);
3609 if (font_in_run == NULL)
3610 break;
3611 if (!mac_ctfont_equal_in_postscript_name (macfont, font_in_run))
3612 break;
3613 }
3614 if (i < nruns)
3615 {
3616 CFRelease (ctline);
3617 ctline = NULL;
3618 }
3619 }
3620
3621 return ctline;
3622 }
3623
3624 static CFIndex
3625 mac_ctfont_shape (CTFontRef font, CFStringRef string,
3626 struct mac_glyph_layout *glyph_layouts, CFIndex glyph_len)
3627 {
3628 CFIndex used, result = 0;
3629 CTLineRef ctline = mac_ctfont_create_line_with_string_and_font (string, font);
3630
3631 if (ctline == NULL)
3632 return 0;
3633
3634 used = CTLineGetGlyphCount (ctline);
3635 if (used <= glyph_len)
3636 {
3637 CFArrayRef ctruns = CTLineGetGlyphRuns (ctline);
3638 CFIndex k, ctrun_count = CFArrayGetCount (ctruns);
3639 CGFloat total_advance = 0;
3640 CFIndex total_glyph_count = 0;
3641
3642 for (k = 0; k < ctrun_count; k++)
3643 {
3644 CTRunRef ctrun = CFArrayGetValueAtIndex (ctruns, k);
3645 CFIndex i, min_location, glyph_count = CTRunGetGlyphCount (ctrun);
3646 struct mac_glyph_layout *glbuf = glyph_layouts + total_glyph_count;
3647 CFRange string_range, comp_range, range;
3648 CFIndex *permutation;
3649
3650 if (CTRunGetStatus (ctrun) & kCTRunStatusRightToLeft)
3651 permutation = xmalloc (sizeof (CFIndex) * glyph_count);
3652 else
3653 permutation = NULL;
3654
3655 #define RIGHT_TO_LEFT_P permutation
3656
3657 /* Now the `comp_range' member of struct mac_glyph_layout is
3658 temporarily used as a work area such that:
3659 glbuf[i].comp_range.location =
3660 min {compRange[i + 1].location, ...,
3661 compRange[glyph_count - 1].location,
3662 maxRange (stringRangeForCTRun)}
3663 glbuf[i].comp_range.length = maxRange (compRange[i])
3664 where compRange[i] is the range of composed characters
3665 containing i-th glyph. */
3666 string_range = CTRunGetStringRange (ctrun);
3667 min_location = string_range.location + string_range.length;
3668 for (i = 0; i < glyph_count; i++)
3669 {
3670 struct mac_glyph_layout *gl = glbuf + glyph_count - i - 1;
3671 CFIndex glyph_index;
3672 CFRange rng;
3673
3674 if (!RIGHT_TO_LEFT_P)
3675 glyph_index = glyph_count - i - 1;
3676 else
3677 glyph_index = i;
3678 CTRunGetStringIndices (ctrun, CFRangeMake (glyph_index, 1),
3679 &gl->string_index);
3680 rng =
3681 CFStringGetRangeOfComposedCharactersAtIndex (string,
3682 gl->string_index);
3683 gl->comp_range.location = min_location;
3684 gl->comp_range.length = rng.location + rng.length;
3685 if (rng.location < min_location)
3686 min_location = rng.location;
3687 }
3688
3689 /* Fill the `comp_range' member of struct mac_glyph_layout,
3690 and setup a permutation for right-to-left text. */
3691 comp_range = CFRangeMake (string_range.location, 0);
3692 range = CFRangeMake (0, 0);
3693 while (1)
3694 {
3695 struct mac_glyph_layout *gl =
3696 glbuf + range.location + range.length;
3697
3698 if (gl->comp_range.length
3699 > comp_range.location + comp_range.length)
3700 comp_range.length = gl->comp_range.length - comp_range.location;
3701 min_location = gl->comp_range.location;
3702 range.length++;
3703
3704 if (min_location >= comp_range.location + comp_range.length)
3705 {
3706 comp_range.length = min_location - comp_range.location;
3707 for (i = 0; i < range.length; i++)
3708 {
3709 glbuf[range.location + i].comp_range = comp_range;
3710 if (RIGHT_TO_LEFT_P)
3711 permutation[range.location + i] =
3712 range.location + range.length - i - 1;
3713 }
3714
3715 comp_range = CFRangeMake (min_location, 0);
3716 range.location += range.length;
3717 range.length = 0;
3718 if (range.location == glyph_count)
3719 break;
3720 }
3721 }
3722
3723 /* Then fill the remaining members. */
3724 for (range = CFRangeMake (0, 1); range.location < glyph_count;
3725 range.location++)
3726 {
3727 struct mac_glyph_layout *gl;
3728 CGPoint position;
3729
3730 if (!RIGHT_TO_LEFT_P)
3731 gl = glbuf + range.location;
3732 else
3733 {
3734 CFIndex src, dest;
3735
3736 src = glyph_count - 1 - range.location;
3737 dest = permutation[src];
3738 gl = glbuf + dest;
3739 if (src < dest)
3740 {
3741 CFIndex tmp = gl->string_index;
3742
3743 gl->string_index = glbuf[src].string_index;
3744 glbuf[src].string_index = tmp;
3745 }
3746 }
3747 CTRunGetGlyphs (ctrun, range, &gl->glyph_id);
3748
3749 CTRunGetPositions (ctrun, range, &position);
3750 gl->advance_delta = position.x - total_advance;
3751 gl->baseline_delta = position.y;
3752 gl->advance = (gl->advance_delta
3753 + CTRunGetTypographicBounds (ctrun, range,
3754 NULL, NULL, NULL));
3755 total_advance += gl->advance;
3756 }
3757
3758 if (RIGHT_TO_LEFT_P)
3759 xfree (permutation);
3760
3761 #undef RIGHT_TO_LEFT_P
3762
3763 total_glyph_count += glyph_count;
3764 }
3765
3766 result = used;
3767 }
3768 CFRelease (ctline);
3769
3770 return result;
3771 }
3772
3773 /* The function below seems to cause a memory leak for the CFString
3774 created by CFStringCreateWithCharacters as of Mac OS X 10.5.8 and
3775 10.6.3. For now, we use the NSGlyphInfo version instead. */
3776 #if USE_CT_GLYPH_INFO
3777 static CGGlyph
3778 mac_ctfont_get_glyph_for_cid (CTFontRef font, CTCharacterCollection collection,
3779 CGFontIndex cid)
3780 {
3781 CGGlyph result = kCGFontIndexInvalid;
3782 UniChar characters[] = {0xfffd};
3783 CFStringRef string;
3784 CFAttributedStringRef attr_string = NULL;
3785 CTLineRef ctline = NULL;
3786
3787 string = CFStringCreateWithCharacters (NULL, characters,
3788 ARRAYELTS (characters));
3789
3790 if (string)
3791 {
3792 CTGlyphInfoRef glyph_info =
3793 CTGlyphInfoCreateWithCharacterIdentifier (cid, collection, string);
3794 CFDictionaryRef attributes = NULL;
3795
3796 if (glyph_info)
3797 {
3798 CFStringRef keys[] = {kCTFontAttributeName,
3799 kCTGlyphInfoAttributeName};
3800 CFTypeRef values[] = {font, glyph_info};
3801
3802 attributes = CFDictionaryCreate (NULL, (const void **) keys,
3803 (const void **) values,
3804 ARRAYELTS (keys),
3805 &kCFTypeDictionaryKeyCallBacks,
3806 &kCFTypeDictionaryValueCallBacks);
3807 CFRelease (glyph_info);
3808 }
3809 if (attributes)
3810 {
3811 attr_string = CFAttributedStringCreate (NULL, string, attributes);
3812 CFRelease (attributes);
3813 }
3814 CFRelease (string);
3815 }
3816 if (attr_string)
3817 {
3818 ctline = CTLineCreateWithAttributedString (attr_string);
3819 CFRelease (attr_string);
3820 }
3821 if (ctline)
3822 {
3823 CFArrayRef runs = CTLineGetGlyphRuns (ctline);
3824
3825 if (CFArrayGetCount (runs) > 0)
3826 {
3827 CTRunRef run = CFArrayGetValueAtIndex (runs, 0);
3828 CFDictionaryRef attributes = CTRunGetAttributes (run);
3829
3830 if (attributes)
3831 {
3832 CTFontRef font_in_run =
3833 CFDictionaryGetValue (attributes, kCTFontAttributeName);
3834
3835 if (font_in_run
3836 && mac_ctfont_equal_in_postscript_name (font_in_run, font))
3837 {
3838 CTRunGetGlyphs (run, CFRangeMake (0, 1), &result);
3839 if (result >= CTFontGetGlyphCount (font))
3840 result = kCGFontIndexInvalid;
3841 }
3842 }
3843 }
3844 CFRelease (ctline);
3845 }
3846
3847 return result;
3848 }
3849 #endif
3850
3851 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
3852 static inline int
3853 mac_font_family_group (CFStringRef family)
3854 {
3855 if (CFStringHasPrefix (family, CFSTR ("#")))
3856 return 2;
3857 else
3858 {
3859 CFRange range;
3860
3861 range = CFStringFind (family, CFSTR ("Apple"),
3862 kCFCompareCaseInsensitive | kCFCompareAnchored);
3863 if (range.location != kCFNotFound)
3864 return 1;
3865
3866 return 0;
3867 }
3868 }
3869
3870 static CFComparisonResult
3871 mac_font_family_compare (const void *val1, const void *val2, void *context)
3872 {
3873 CFStringRef family1 = (CFStringRef) val1, family2 = (CFStringRef) val2;
3874 int group1, group2;
3875
3876 group1 = mac_font_family_group (family1);
3877 group2 = mac_font_family_group (family2);
3878 if (group1 < group2)
3879 return kCFCompareLessThan;
3880 if (group1 > group2)
3881 return kCFCompareGreaterThan;
3882 return CFStringCompare (family1, family2, kCFCompareCaseInsensitive);
3883 }
3884 #endif /* MAC_OS_X_VERSION_MIN_REQUIRED < 1060 */
3885
3886 static CFArrayRef
3887 mac_font_copy_default_descriptors_for_language (CFStringRef language)
3888 {
3889 CFArrayRef result = NULL;
3890
3891 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
3892 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1080
3893 if (CTFontCopyDefaultCascadeListForLanguages != NULL)
3894 #endif
3895 {
3896 CTFontRef user_font =
3897 CTFontCreateUIFontForLanguage (kCTFontUserFontType, 0, language);
3898
3899 if (user_font)
3900 {
3901 CFArrayRef languages =
3902 CFArrayCreate (NULL, (const void **) &language, 1,
3903 &kCFTypeArrayCallBacks);
3904
3905 if (languages)
3906 {
3907 result = CTFontCopyDefaultCascadeListForLanguages (user_font,
3908 languages);
3909 CFRelease (languages);
3910 }
3911 CFRelease (user_font);
3912 }
3913 }
3914 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1080
3915 else /* CTFontCopyDefaultCascadeListForLanguages == NULL */
3916 #endif
3917 #endif /* MAC_OS_X_VERSION_MAX_ALLOWED >= 1080 */
3918 #if MAC_OS_X_VERSION_MIN_REQUIRED < 1080
3919 {
3920 CFIndex i;
3921
3922 for (i = 0; macfont_language_default_font_names[i].language; i++)
3923 {
3924 if (CFEqual (macfont_language_default_font_names[i].language,
3925 language))
3926 {
3927 CFMutableArrayRef descriptors =
3928 CFArrayCreateMutable (NULL, 0, &kCFTypeArrayCallBacks);
3929
3930 if (descriptors)
3931 {
3932 CFIndex j;
3933
3934 for (j = 0;
3935 macfont_language_default_font_names[i].font_names[j];
3936 j++)
3937 {
3938 CFDictionaryRef attributes =
3939 CFDictionaryCreate (NULL,
3940 ((const void **)
3941 &MAC_FONT_NAME_ATTRIBUTE),
3942 ((const void **)
3943 &macfont_language_default_font_names[i].font_names[j]),
3944 1, &kCFTypeDictionaryKeyCallBacks,
3945 &kCFTypeDictionaryValueCallBacks);
3946
3947 if (attributes)
3948 {
3949 FontDescriptorRef pat_desc =
3950 mac_font_descriptor_create_with_attributes (attributes);
3951
3952 if (pat_desc)
3953 {
3954 FontDescriptorRef descriptor =
3955 mac_font_descriptor_create_matching_font_descriptor (pat_desc, NULL);
3956
3957 if (descriptor)
3958 {
3959 CFArrayAppendValue (descriptors, descriptor);
3960 CFRelease (descriptor);
3961 }
3962 CFRelease (pat_desc);
3963 }
3964 CFRelease (attributes);
3965 }
3966 }
3967 result = descriptors;
3968 }
3969 break;
3970 }
3971 }
3972 }
3973 #endif
3974
3975 return result;
3976 }
3977
3978 static CFStringRef
3979 mac_font_copy_default_name_for_charset_and_languages (CFCharacterSetRef charset,
3980 CFArrayRef languages)
3981 {
3982 CFStringRef result = NULL;
3983 CFStringRef language = CFArrayGetValueAtIndex (languages, 0);
3984 CFArrayRef descriptors =
3985 mac_font_copy_default_descriptors_for_language (language);
3986
3987 if (descriptors)
3988 {
3989 CFIndex i, count = CFArrayGetCount (descriptors);
3990
3991 for (i = 0; i < count; i++)
3992 {
3993 FontDescriptorRef descriptor =
3994 CFArrayGetValueAtIndex (descriptors, i);
3995
3996 if (macfont_supports_charset_and_languages_p (descriptor, charset,
3997 Qnil, languages))
3998 {
3999 CFStringRef family =
4000 mac_font_descriptor_copy_attribute (descriptor,
4001 MAC_FONT_FAMILY_NAME_ATTRIBUTE);
4002 if (family)
4003 {
4004 if (!CFStringHasPrefix (family, CFSTR ("."))
4005 && !CFEqual (family, CFSTR ("LastResort")))
4006 {
4007 result = family;
4008 break;
4009 }
4010 else
4011 CFRelease (family);
4012 }
4013 }
4014 }
4015 CFRelease (descriptors);
4016 }
4017
4018 return result;
4019 }
4020
4021 void *
4022 macfont_get_nsctfont (struct font *font)
4023 {
4024 struct macfont_info *macfont_info = (struct macfont_info *) font;
4025 FontRef macfont = macfont_info->macfont;
4026
4027 return (void *) macfont;
4028 }
4029
4030 void
4031 mac_register_font_driver (struct frame *f)
4032 {
4033 register_font_driver (&macfont_driver, f);
4034 }
4035
4036 #endif // MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
4037
4038 \f
4039 void
4040 syms_of_macfont (void)
4041 {
4042 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
4043 static struct font_driver mac_font_driver;
4044
4045 DEFSYM (Qmac_ct, "mac-ct");
4046 macfont_driver.type = Qmac_ct;
4047 register_font_driver (&macfont_driver, NULL);
4048
4049 DEFSYM (QCdestination, ":destination");
4050 DEFSYM (QCminspace, ":minspace");
4051 #endif
4052 }
Unnamed repository; edit this file 'description' to name the repository.