Sync with trunk r47367
[reactos.git] / lib / 3rdparty / freetype / src / base / ftmac.c
1 /***************************************************************************/
2 /* */
3 /* ftmac.c */
4 /* */
5 /* Mac FOND support. Written by just@letterror.com. */
6 /* Heavily modified by mpsuzuki, George Williams, and Sean McBride. */
7 /* */
8 /* This file is for Mac OS X only; see builds/mac/ftoldmac.c for */
9 /* classic platforms built by MPW. */
10 /* */
11 /* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, */
12 /* 2009 by */
13 /* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg. */
14 /* */
15 /* This file is part of the FreeType project, and may only be used, */
16 /* modified, and distributed under the terms of the FreeType project */
17 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
18 /* this file you indicate that you have read the license and */
19 /* understand and accept it fully. */
20 /* */
21 /***************************************************************************/
22
23
24 /*
25 Notes
26
27 Mac suitcase files can (and often do!) contain multiple fonts. To
28 support this I use the face_index argument of FT_(Open|New)_Face()
29 functions, and pretend the suitcase file is a collection.
30
31 Warning: fbit and NFNT bitmap resources are not supported yet. In old
32 sfnt fonts, bitmap glyph data for each size is stored in each `NFNT'
33 resources instead of the `bdat' table in the sfnt resource. Therefore,
34 face->num_fixed_sizes is set to 0, because bitmap data in `NFNT'
35 resource is unavailable at present.
36
37 The Mac FOND support works roughly like this:
38
39 - Check whether the offered stream points to a Mac suitcase file. This
40 is done by checking the file type: it has to be 'FFIL' or 'tfil'. The
41 stream that gets passed to our init_face() routine is a stdio stream,
42 which isn't usable for us, since the FOND resources live in the
43 resource fork. So we just grab the stream->pathname field.
44
45 - Read the FOND resource into memory, then check whether there is a
46 TrueType font and/or(!) a Type 1 font available.
47
48 - If there is a Type 1 font available (as a separate `LWFN' file), read
49 its data into memory, massage it slightly so it becomes PFB data, wrap
50 it into a memory stream, load the Type 1 driver and delegate the rest
51 of the work to it by calling FT_Open_Face(). (XXX TODO: after this
52 has been done, the kerning data from the FOND resource should be
53 appended to the face: On the Mac there are usually no AFM files
54 available. However, this is tricky since we need to map Mac char
55 codes to ps glyph names to glyph ID's...)
56
57 - If there is a TrueType font (an `sfnt' resource), read it into memory,
58 wrap it into a memory stream, load the TrueType driver and delegate
59 the rest of the work to it, by calling FT_Open_Face().
60
61 - Some suitcase fonts (notably Onyx) might point the `LWFN' file to
62 itself, even though it doesn't contains `POST' resources. To handle
63 this special case without opening the file an extra time, we just
64 ignore errors from the `LWFN' and fallback to the `sfnt' if both are
65 available.
66 */
67
68
69 #include <ft2build.h>
70 #include FT_FREETYPE_H
71 #include FT_TRUETYPE_TAGS_H
72 #include FT_INTERNAL_STREAM_H
73 #include "ftbase.h"
74
75 /* This is for Mac OS X. Without redefinition, OS_INLINE */
76 /* expands to `static inline' which doesn't survive the */
77 /* -ansi compilation flag of GCC. */
78 #if !HAVE_ANSI_OS_INLINE
79 #undef OS_INLINE
80 #define OS_INLINE static __inline__
81 #endif
82
83 /* `configure' checks the availability of `ResourceIndex' strictly */
84 /* and sets HAVE_TYPE_RESOURCE_INDEX 1 or 0 always. If it is */
85 /* not set (e.g., a build without `configure'), the availability */
86 /* is guessed from the SDK version. */
87 #ifndef HAVE_TYPE_RESOURCE_INDEX
88 #if !defined( MAC_OS_X_VERSION_10_5 ) || \
89 ( MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5 )
90 #define HAVE_TYPE_RESOURCE_INDEX 0
91 #else
92 #define HAVE_TYPE_RESOURCE_INDEX 1
93 #endif
94 #endif /* !HAVE_TYPE_RESOURCE_INDEX */
95
96 #if ( HAVE_TYPE_RESOURCE_INDEX == 0 )
97 typedef short ResourceIndex;
98 #endif
99
100 #include <CoreServices/CoreServices.h>
101 #include <ApplicationServices/ApplicationServices.h>
102 #include <sys/syslimits.h> /* PATH_MAX */
103
104 /* Don't want warnings about our own use of deprecated functions. */
105 #define FT_DEPRECATED_ATTRIBUTE
106
107 #include FT_MAC_H
108
109 #ifndef kATSOptionFlagsUnRestrictedScope /* since Mac OS X 10.1 */
110 #define kATSOptionFlagsUnRestrictedScope kATSOptionFlagsDefault
111 #endif
112
113
114 /* Set PREFER_LWFN to 1 if LWFN (Type 1) is preferred over
115 TrueType in case *both* are available (this is not common,
116 but it *is* possible). */
117 #ifndef PREFER_LWFN
118 #define PREFER_LWFN 1
119 #endif
120
121
122 /* This function is deprecated because FSSpec is deprecated in Mac OS X */
123 FT_EXPORT_DEF( FT_Error )
124 FT_GetFile_From_Mac_Name( const char* fontName,
125 FSSpec* pathSpec,
126 FT_Long* face_index )
127 {
128 FT_UNUSED( fontName );
129 FT_UNUSED( pathSpec );
130 FT_UNUSED( face_index );
131
132 return FT_Err_Unimplemented_Feature;
133 }
134
135
136 /* Private function. */
137 /* The FSSpec type has been discouraged for a long time, */
138 /* unfortunately an FSRef replacement API for */
139 /* ATSFontGetFileSpecification() is only available in */
140 /* Mac OS X 10.5 and later. */
141 static OSStatus
142 FT_ATSFontGetFileReference( ATSFontRef ats_font_id,
143 FSRef* ats_font_ref )
144 {
145 #if defined( MAC_OS_X_VERSION_10_5 ) && \
146 ( MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 )
147
148 OSStatus err;
149
150 err = ATSFontGetFileReference( ats_font_id, ats_font_ref );
151
152 return err;
153 #elif __LP64__ /* No 64bit Carbon API on legacy platforms */
154 FT_UNUSED( ats_font_id );
155 FT_UNUSED( ats_font_ref );
156
157
158 return fnfErr;
159 #else /* 32bit Carbon API on legacy platforms */
160 OSStatus err;
161 FSSpec spec;
162
163
164 err = ATSFontGetFileSpecification( ats_font_id, &spec );
165 if ( noErr == err )
166 err = FSpMakeFSRef( &spec, ats_font_ref );
167
168 return err;
169 #endif
170 }
171
172
173 static FT_Error
174 FT_GetFileRef_From_Mac_ATS_Name( const char* fontName,
175 FSRef* ats_font_ref,
176 FT_Long* face_index )
177 {
178 CFStringRef cf_fontName;
179 ATSFontRef ats_font_id;
180
181
182 *face_index = 0;
183
184 cf_fontName = CFStringCreateWithCString( NULL, fontName,
185 kCFStringEncodingMacRoman );
186 ats_font_id = ATSFontFindFromName( cf_fontName,
187 kATSOptionFlagsUnRestrictedScope );
188 CFRelease( cf_fontName );
189
190 if ( ats_font_id == 0 || ats_font_id == 0xFFFFFFFFUL )
191 return FT_Err_Unknown_File_Format;
192
193 if ( noErr != FT_ATSFontGetFileReference( ats_font_id, ats_font_ref ) )
194 return FT_Err_Unknown_File_Format;
195
196 /* face_index calculation by searching preceding fontIDs */
197 /* with same FSRef */
198 {
199 ATSFontRef id2 = ats_font_id - 1;
200 FSRef ref2;
201
202
203 while ( id2 > 0 )
204 {
205 if ( noErr != FT_ATSFontGetFileReference( id2, &ref2 ) )
206 break;
207 if ( noErr != FSCompareFSRefs( ats_font_ref, &ref2 ) )
208 break;
209
210 id2 --;
211 }
212 *face_index = ats_font_id - ( id2 + 1 );
213 }
214
215 return FT_Err_Ok;
216 }
217
218
219 FT_EXPORT_DEF( FT_Error )
220 FT_GetFilePath_From_Mac_ATS_Name( const char* fontName,
221 UInt8* path,
222 UInt32 maxPathSize,
223 FT_Long* face_index )
224 {
225 FSRef ref;
226 FT_Error err;
227
228
229 err = FT_GetFileRef_From_Mac_ATS_Name( fontName, &ref, face_index );
230 if ( FT_Err_Ok != err )
231 return err;
232
233 if ( noErr != FSRefMakePath( &ref, path, maxPathSize ) )
234 return FT_Err_Unknown_File_Format;
235
236 return FT_Err_Ok;
237 }
238
239
240 /* This function is deprecated because FSSpec is deprecated in Mac OS X */
241 FT_EXPORT_DEF( FT_Error )
242 FT_GetFile_From_Mac_ATS_Name( const char* fontName,
243 FSSpec* pathSpec,
244 FT_Long* face_index )
245 {
246 #if ( __LP64__ ) || ( defined( MAC_OS_X_VERSION_10_5 ) && \
247 ( MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 ) )
248 FT_UNUSED( fontName );
249 FT_UNUSED( pathSpec );
250 FT_UNUSED( face_index );
251
252 return FT_Err_Unimplemented_Feature;
253 #else
254 FSRef ref;
255 FT_Error err;
256
257
258 err = FT_GetFileRef_From_Mac_ATS_Name( fontName, &ref, face_index );
259 if ( FT_Err_Ok != err )
260 return err;
261
262 if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, NULL, NULL,
263 pathSpec, NULL ) )
264 return FT_Err_Unknown_File_Format;
265
266 return FT_Err_Ok;
267 #endif
268 }
269
270
271 static OSErr
272 FT_FSPathMakeRes( const UInt8* pathname,
273 ResFileRefNum* res )
274 {
275 OSErr err;
276 FSRef ref;
277
278
279 if ( noErr != FSPathMakeRef( pathname, &ref, FALSE ) )
280 return FT_Err_Cannot_Open_Resource;
281
282 /* at present, no support for dfont format */
283 err = FSOpenResourceFile( &ref, 0, NULL, fsRdPerm, res );
284 if ( noErr == err )
285 return err;
286
287 /* fallback to original resource-fork font */
288 *res = FSOpenResFile( &ref, fsRdPerm );
289 err = ResError();
290
291 return err;
292 }
293
294
295 /* Return the file type for given pathname */
296 static OSType
297 get_file_type_from_path( const UInt8* pathname )
298 {
299 FSRef ref;
300 FSCatalogInfo info;
301
302
303 if ( noErr != FSPathMakeRef( pathname, &ref, FALSE ) )
304 return ( OSType ) 0;
305
306 if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoFinderInfo, &info,
307 NULL, NULL, NULL ) )
308 return ( OSType ) 0;
309
310 return ((FInfo *)(info.finderInfo))->fdType;
311 }
312
313
314 /* Given a PostScript font name, create the Macintosh LWFN file name. */
315 static void
316 create_lwfn_name( char* ps_name,
317 Str255 lwfn_file_name )
318 {
319 int max = 5, count = 0;
320 FT_Byte* p = lwfn_file_name;
321 FT_Byte* q = (FT_Byte*)ps_name;
322
323
324 lwfn_file_name[0] = 0;
325
326 while ( *q )
327 {
328 if ( ft_isupper( *q ) )
329 {
330 if ( count )
331 max = 3;
332 count = 0;
333 }
334 if ( count < max && ( ft_isalnum( *q ) || *q == '_' ) )
335 {
336 *++p = *q;
337 lwfn_file_name[0]++;
338 count++;
339 }
340 q++;
341 }
342 }
343
344
345 static short
346 count_faces_sfnt( char* fond_data )
347 {
348 /* The count is 1 greater than the value in the FOND. */
349 /* Isn't that cute? :-) */
350
351 return EndianS16_BtoN( *( (short*)( fond_data +
352 sizeof ( FamRec ) ) ) ) + 1;
353 }
354
355
356 static short
357 count_faces_scalable( char* fond_data )
358 {
359 AsscEntry* assoc;
360 FamRec* fond;
361 short i, face, face_all;
362
363
364 fond = (FamRec*)fond_data;
365 face_all = EndianS16_BtoN( *( (short *)( fond_data +
366 sizeof ( FamRec ) ) ) ) + 1;
367 assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 );
368 face = 0;
369
370 for ( i = 0; i < face_all; i++ )
371 {
372 if ( 0 == EndianS16_BtoN( assoc[i].fontSize ) )
373 face++;
374 }
375 return face;
376 }
377
378
379 /* Look inside the FOND data, answer whether there should be an SFNT
380 resource, and answer the name of a possible LWFN Type 1 file.
381
382 Thanks to Paul Miller (paulm@profoundeffects.com) for the fix
383 to load a face OTHER than the first one in the FOND!
384 */
385
386
387 static void
388 parse_fond( char* fond_data,
389 short* have_sfnt,
390 ResID* sfnt_id,
391 Str255 lwfn_file_name,
392 short face_index )
393 {
394 AsscEntry* assoc;
395 AsscEntry* base_assoc;
396 FamRec* fond;
397
398
399 *sfnt_id = 0;
400 *have_sfnt = 0;
401 lwfn_file_name[0] = 0;
402
403 fond = (FamRec*)fond_data;
404 assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 );
405 base_assoc = assoc;
406
407 /* the maximum faces in a FOND is 48, size of StyleTable.indexes[] */
408 if ( 47 < face_index )
409 return;
410
411 /* Let's do a little range checking before we get too excited here */
412 if ( face_index < count_faces_sfnt( fond_data ) )
413 {
414 assoc += face_index; /* add on the face_index! */
415
416 /* if the face at this index is not scalable,
417 fall back to the first one (old behavior) */
418 if ( EndianS16_BtoN( assoc->fontSize ) == 0 )
419 {
420 *have_sfnt = 1;
421 *sfnt_id = EndianS16_BtoN( assoc->fontID );
422 }
423 else if ( base_assoc->fontSize == 0 )
424 {
425 *have_sfnt = 1;
426 *sfnt_id = EndianS16_BtoN( base_assoc->fontID );
427 }
428 }
429
430 if ( EndianS32_BtoN( fond->ffStylOff ) )
431 {
432 unsigned char* p = (unsigned char*)fond_data;
433 StyleTable* style;
434 unsigned short string_count;
435 char ps_name[256];
436 unsigned char* names[64];
437 int i;
438
439
440 p += EndianS32_BtoN( fond->ffStylOff );
441 style = (StyleTable*)p;
442 p += sizeof ( StyleTable );
443 string_count = EndianS16_BtoN( *(short*)(p) );
444 p += sizeof ( short );
445
446 for ( i = 0; i < string_count && i < 64; i++ )
447 {
448 names[i] = p;
449 p += names[i][0];
450 p++;
451 }
452
453 {
454 size_t ps_name_len = (size_t)names[0][0];
455
456
457 if ( ps_name_len != 0 )
458 {
459 ft_memcpy(ps_name, names[0] + 1, ps_name_len);
460 ps_name[ps_name_len] = 0;
461 }
462 if ( style->indexes[face_index] > 1 &&
463 style->indexes[face_index] <= FT_MIN( string_count, 64 ) )
464 {
465 unsigned char* suffixes = names[style->indexes[face_index] - 1];
466
467
468 for ( i = 1; i <= suffixes[0]; i++ )
469 {
470 unsigned char* s;
471 size_t j = suffixes[i] - 1;
472
473
474 if ( j < string_count && ( s = names[j] ) != NULL )
475 {
476 size_t s_len = (size_t)s[0];
477
478
479 if ( s_len != 0 && ps_name_len + s_len < sizeof ( ps_name ) )
480 {
481 ft_memcpy( ps_name + ps_name_len, s + 1, s_len );
482 ps_name_len += s_len;
483 ps_name[ps_name_len] = 0;
484 }
485 }
486 }
487 }
488 }
489
490 create_lwfn_name( ps_name, lwfn_file_name );
491 }
492 }
493
494
495 static FT_Error
496 lookup_lwfn_by_fond( const UInt8* path_fond,
497 ConstStr255Param base_lwfn,
498 UInt8* path_lwfn,
499 size_t path_size )
500 {
501 FSRef ref, par_ref;
502 size_t dirname_len;
503
504
505 /* Pathname for FSRef can be in various formats: HFS, HFS+, and POSIX. */
506 /* We should not extract parent directory by string manipulation. */
507
508 if ( noErr != FSPathMakeRef( path_fond, &ref, FALSE ) )
509 return FT_Err_Invalid_Argument;
510
511 if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone,
512 NULL, NULL, NULL, &par_ref ) )
513 return FT_Err_Invalid_Argument;
514
515 if ( noErr != FSRefMakePath( &par_ref, path_lwfn, path_size ) )
516 return FT_Err_Invalid_Argument;
517
518 if ( ft_strlen( (char *)path_lwfn ) + 1 + base_lwfn[0] > path_size )
519 return FT_Err_Invalid_Argument;
520
521 /* now we have absolute dirname in path_lwfn */
522 ft_strcat( (char *)path_lwfn, "/" );
523 dirname_len = ft_strlen( (char *)path_lwfn );
524 ft_strcat( (char *)path_lwfn, (char *)base_lwfn + 1 );
525 path_lwfn[dirname_len + base_lwfn[0]] = '\0';
526
527 if ( noErr != FSPathMakeRef( path_lwfn, &ref, FALSE ) )
528 return FT_Err_Cannot_Open_Resource;
529
530 if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone,
531 NULL, NULL, NULL, NULL ) )
532 return FT_Err_Cannot_Open_Resource;
533
534 return FT_Err_Ok;
535 }
536
537
538 static short
539 count_faces( Handle fond,
540 const UInt8* pathname )
541 {
542 ResID sfnt_id;
543 short have_sfnt, have_lwfn;
544 Str255 lwfn_file_name;
545 UInt8 buff[PATH_MAX];
546 FT_Error err;
547 short num_faces;
548
549
550 have_sfnt = have_lwfn = 0;
551
552 parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, 0 );
553
554 if ( lwfn_file_name[0] )
555 {
556 err = lookup_lwfn_by_fond( pathname, lwfn_file_name,
557 buff, sizeof ( buff ) );
558 if ( FT_Err_Ok == err )
559 have_lwfn = 1;
560 }
561
562 if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) )
563 num_faces = 1;
564 else
565 num_faces = count_faces_scalable( *fond );
566
567 return num_faces;
568 }
569
570
571 /* Read Type 1 data from the POST resources inside the LWFN file,
572 return a PFB buffer. This is somewhat convoluted because the FT2
573 PFB parser wants the ASCII header as one chunk, and the LWFN
574 chunks are often not organized that way, so we glue chunks
575 of the same type together. */
576 static FT_Error
577 read_lwfn( FT_Memory memory,
578 ResFileRefNum res,
579 FT_Byte** pfb_data,
580 FT_ULong* size )
581 {
582 FT_Error error = FT_Err_Ok;
583 ResID res_id;
584 unsigned char *buffer, *p, *size_p = NULL;
585 FT_ULong total_size = 0;
586 FT_ULong old_total_size = 0;
587 FT_ULong post_size, pfb_chunk_size;
588 Handle post_data;
589 char code, last_code;
590
591
592 UseResFile( res );
593
594 /* First pass: load all POST resources, and determine the size of */
595 /* the output buffer. */
596 res_id = 501;
597 last_code = -1;
598
599 for (;;)
600 {
601 post_data = Get1Resource( TTAG_POST, res_id++ );
602 if ( post_data == NULL )
603 break; /* we are done */
604
605 code = (*post_data)[0];
606
607 if ( code != last_code )
608 {
609 if ( code == 5 )
610 total_size += 2; /* just the end code */
611 else
612 total_size += 6; /* code + 4 bytes chunk length */
613 }
614
615 total_size += GetHandleSize( post_data ) - 2;
616 last_code = code;
617
618 /* detect integer overflows */
619 if ( total_size < old_total_size )
620 {
621 error = FT_Err_Array_Too_Large;
622 goto Error;
623 }
624
625 old_total_size = total_size;
626 }
627
628 if ( FT_ALLOC( buffer, (FT_Long)total_size ) )
629 goto Error;
630
631 /* Second pass: append all POST data to the buffer, add PFB fields. */
632 /* Glue all consecutive chunks of the same type together. */
633 p = buffer;
634 res_id = 501;
635 last_code = -1;
636 pfb_chunk_size = 0;
637
638 for (;;)
639 {
640 post_data = Get1Resource( TTAG_POST, res_id++ );
641 if ( post_data == NULL )
642 break; /* we are done */
643
644 post_size = (FT_ULong)GetHandleSize( post_data ) - 2;
645 code = (*post_data)[0];
646
647 if ( code != last_code )
648 {
649 if ( last_code != -1 )
650 {
651 /* we are done adding a chunk, fill in the size field */
652 if ( size_p != NULL )
653 {
654 *size_p++ = (FT_Byte)( pfb_chunk_size & 0xFF );
655 *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 8 ) & 0xFF );
656 *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 16 ) & 0xFF );
657 *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 24 ) & 0xFF );
658 }
659 pfb_chunk_size = 0;
660 }
661
662 *p++ = 0x80;
663 if ( code == 5 )
664 *p++ = 0x03; /* the end */
665 else if ( code == 2 )
666 *p++ = 0x02; /* binary segment */
667 else
668 *p++ = 0x01; /* ASCII segment */
669
670 if ( code != 5 )
671 {
672 size_p = p; /* save for later */
673 p += 4; /* make space for size field */
674 }
675 }
676
677 ft_memcpy( p, *post_data + 2, post_size );
678 pfb_chunk_size += post_size;
679 p += post_size;
680 last_code = code;
681 }
682
683 *pfb_data = buffer;
684 *size = total_size;
685
686 Error:
687 CloseResFile( res );
688 return error;
689 }
690
691
692 /* Create a new FT_Face from a file path to an LWFN file. */
693 static FT_Error
694 FT_New_Face_From_LWFN( FT_Library library,
695 const UInt8* pathname,
696 FT_Long face_index,
697 FT_Face* aface )
698 {
699 FT_Byte* pfb_data;
700 FT_ULong pfb_size;
701 FT_Error error;
702 ResFileRefNum res;
703
704
705 if ( noErr != FT_FSPathMakeRes( pathname, &res ) )
706 return FT_Err_Cannot_Open_Resource;
707
708 pfb_data = NULL;
709 pfb_size = 0;
710 error = read_lwfn( library->memory, res, &pfb_data, &pfb_size );
711 CloseResFile( res ); /* PFB is already loaded, useless anymore */
712 if ( error )
713 return error;
714
715 return open_face_from_buffer( library,
716 pfb_data,
717 pfb_size,
718 face_index,
719 "type1",
720 aface );
721 }
722
723
724 /* Create a new FT_Face from an SFNT resource, specified by res ID. */
725 static FT_Error
726 FT_New_Face_From_SFNT( FT_Library library,
727 ResID sfnt_id,
728 FT_Long face_index,
729 FT_Face* aface )
730 {
731 Handle sfnt = NULL;
732 FT_Byte* sfnt_data;
733 size_t sfnt_size;
734 FT_Error error = FT_Err_Ok;
735 FT_Memory memory = library->memory;
736 int is_cff, is_sfnt_ps;
737
738
739 sfnt = GetResource( TTAG_sfnt, sfnt_id );
740 if ( sfnt == NULL )
741 return FT_Err_Invalid_Handle;
742
743 sfnt_size = (FT_ULong)GetHandleSize( sfnt );
744 if ( FT_ALLOC( sfnt_data, (FT_Long)sfnt_size ) )
745 {
746 ReleaseResource( sfnt );
747 return error;
748 }
749
750 ft_memcpy( sfnt_data, *sfnt, sfnt_size );
751 ReleaseResource( sfnt );
752
753 is_cff = sfnt_size > 4 && !ft_memcmp( sfnt_data, "OTTO", 4 );
754 is_sfnt_ps = sfnt_size > 4 && !ft_memcmp( sfnt_data, "typ1", 4 );
755
756 if ( is_sfnt_ps )
757 {
758 FT_Stream stream;
759
760
761 if ( FT_NEW( stream ) )
762 goto Try_OpenType;
763
764 FT_Stream_OpenMemory( stream, sfnt_data, sfnt_size );
765 if ( !open_face_PS_from_sfnt_stream( library,
766 stream,
767 face_index,
768 0, NULL,
769 aface ) )
770 {
771 FT_Stream_Close( stream );
772 FT_FREE( stream );
773 FT_FREE( sfnt_data );
774 goto Exit;
775 }
776
777 FT_FREE( stream );
778 }
779 Try_OpenType:
780 error = open_face_from_buffer( library,
781 sfnt_data,
782 sfnt_size,
783 face_index,
784 is_cff ? "cff" : "truetype",
785 aface );
786 Exit:
787 return error;
788 }
789
790
791 /* Create a new FT_Face from a file path to a suitcase file. */
792 static FT_Error
793 FT_New_Face_From_Suitcase( FT_Library library,
794 const UInt8* pathname,
795 FT_Long face_index,
796 FT_Face* aface )
797 {
798 FT_Error error = FT_Err_Cannot_Open_Resource;
799 ResFileRefNum res_ref;
800 ResourceIndex res_index;
801 Handle fond;
802 short num_faces_in_res, num_faces_in_fond;
803
804
805 if ( noErr != FT_FSPathMakeRes( pathname, &res_ref ) )
806 return FT_Err_Cannot_Open_Resource;
807
808 UseResFile( res_ref );
809 if ( ResError() )
810 return FT_Err_Cannot_Open_Resource;
811
812 num_faces_in_res = 0;
813 for ( res_index = 1; ; ++res_index )
814 {
815 fond = Get1IndResource( TTAG_FOND, res_index );
816 if ( ResError() )
817 break;
818
819 num_faces_in_fond = count_faces( fond, pathname );
820 num_faces_in_res += num_faces_in_fond;
821
822 if ( 0 <= face_index && face_index < num_faces_in_fond && error )
823 error = FT_New_Face_From_FOND( library, fond, face_index, aface );
824
825 face_index -= num_faces_in_fond;
826 }
827
828 CloseResFile( res_ref );
829 if ( FT_Err_Ok == error && NULL != aface && NULL != *aface )
830 (*aface)->num_faces = num_faces_in_res;
831 return error;
832 }
833
834
835 /* documentation is in ftmac.h */
836
837 FT_EXPORT_DEF( FT_Error )
838 FT_New_Face_From_FOND( FT_Library library,
839 Handle fond,
840 FT_Long face_index,
841 FT_Face* aface )
842 {
843 short have_sfnt, have_lwfn = 0;
844 ResID sfnt_id, fond_id;
845 OSType fond_type;
846 Str255 fond_name;
847 Str255 lwfn_file_name;
848 UInt8 path_lwfn[PATH_MAX];
849 OSErr err;
850 FT_Error error = FT_Err_Ok;
851
852
853 GetResInfo( fond, &fond_id, &fond_type, fond_name );
854 if ( ResError() != noErr || fond_type != TTAG_FOND )
855 return FT_Err_Invalid_File_Format;
856
857 parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, face_index );
858
859 if ( lwfn_file_name[0] )
860 {
861 ResFileRefNum res;
862
863
864 res = HomeResFile( fond );
865 if ( noErr != ResError() )
866 goto found_no_lwfn_file;
867
868 {
869 UInt8 path_fond[PATH_MAX];
870 FSRef ref;
871
872
873 err = FSGetForkCBInfo( res, kFSInvalidVolumeRefNum,
874 NULL, NULL, NULL, &ref, NULL );
875 if ( noErr != err )
876 goto found_no_lwfn_file;
877
878 err = FSRefMakePath( &ref, path_fond, sizeof ( path_fond ) );
879 if ( noErr != err )
880 goto found_no_lwfn_file;
881
882 error = lookup_lwfn_by_fond( path_fond, lwfn_file_name,
883 path_lwfn, sizeof ( path_lwfn ) );
884 if ( FT_Err_Ok == error )
885 have_lwfn = 1;
886 }
887 }
888
889 if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) )
890 error = FT_New_Face_From_LWFN( library,
891 path_lwfn,
892 face_index,
893 aface );
894 else
895 error = FT_Err_Unknown_File_Format;
896
897 found_no_lwfn_file:
898 if ( have_sfnt && FT_Err_Ok != error )
899 error = FT_New_Face_From_SFNT( library,
900 sfnt_id,
901 face_index,
902 aface );
903
904 return error;
905 }
906
907
908 /* Common function to load a new FT_Face from a resource file. */
909 static FT_Error
910 FT_New_Face_From_Resource( FT_Library library,
911 const UInt8* pathname,
912 FT_Long face_index,
913 FT_Face* aface )
914 {
915 OSType file_type;
916 FT_Error error;
917
918
919 /* LWFN is a (very) specific file format, check for it explicitly */
920 file_type = get_file_type_from_path( pathname );
921 if ( file_type == TTAG_LWFN )
922 return FT_New_Face_From_LWFN( library, pathname, face_index, aface );
923
924 /* Otherwise the file type doesn't matter (there are more than */
925 /* `FFIL' and `tfil'). Just try opening it as a font suitcase; */
926 /* if it works, fine. */
927
928 error = FT_New_Face_From_Suitcase( library, pathname, face_index, aface );
929 if ( error == 0 )
930 return error;
931
932 /* let it fall through to normal loader (.ttf, .otf, etc.); */
933 /* we signal this by returning no error and no FT_Face */
934 *aface = NULL;
935 return 0;
936 }
937
938
939 /*************************************************************************/
940 /* */
941 /* <Function> */
942 /* FT_New_Face */
943 /* */
944 /* <Description> */
945 /* This is the Mac-specific implementation of FT_New_Face. In */
946 /* addition to the standard FT_New_Face() functionality, it also */
947 /* accepts pathnames to Mac suitcase files. For further */
948 /* documentation see the original FT_New_Face() in freetype.h. */
949 /* */
950 FT_EXPORT_DEF( FT_Error )
951 FT_New_Face( FT_Library library,
952 const char* pathname,
953 FT_Long face_index,
954 FT_Face* aface )
955 {
956 FT_Open_Args args;
957 FT_Error error;
958
959
960 /* test for valid `library' and `aface' delayed to FT_Open_Face() */
961 if ( !pathname )
962 return FT_Err_Invalid_Argument;
963
964 error = FT_Err_Ok;
965 *aface = NULL;
966
967 /* try resourcefork based font: LWFN, FFIL */
968 error = FT_New_Face_From_Resource( library, (UInt8 *)pathname,
969 face_index, aface );
970 if ( error != 0 || *aface != NULL )
971 return error;
972
973 /* let it fall through to normal loader (.ttf, .otf, etc.) */
974 args.flags = FT_OPEN_PATHNAME;
975 args.pathname = (char*)pathname;
976 return FT_Open_Face( library, &args, face_index, aface );
977 }
978
979
980 /*************************************************************************/
981 /* */
982 /* <Function> */
983 /* FT_New_Face_From_FSRef */
984 /* */
985 /* <Description> */
986 /* FT_New_Face_From_FSRef is identical to FT_New_Face except it */
987 /* accepts an FSRef instead of a path. */
988 /* */
989 /* This function is deprecated because Carbon data types (FSRef) */
990 /* are not cross-platform, and thus not suitable for the freetype API. */
991 FT_EXPORT_DEF( FT_Error )
992 FT_New_Face_From_FSRef( FT_Library library,
993 const FSRef* ref,
994 FT_Long face_index,
995 FT_Face* aface )
996 {
997 FT_Error error;
998 FT_Open_Args args;
999 OSErr err;
1000 UInt8 pathname[PATH_MAX];
1001
1002
1003 if ( !ref )
1004 return FT_Err_Invalid_Argument;
1005
1006 err = FSRefMakePath( ref, pathname, sizeof ( pathname ) );
1007 if ( err )
1008 error = FT_Err_Cannot_Open_Resource;
1009
1010 error = FT_New_Face_From_Resource( library, pathname, face_index, aface );
1011 if ( error != 0 || *aface != NULL )
1012 return error;
1013
1014 /* fallback to datafork font */
1015 args.flags = FT_OPEN_PATHNAME;
1016 args.pathname = (char*)pathname;
1017 return FT_Open_Face( library, &args, face_index, aface );
1018 }
1019
1020
1021 /*************************************************************************/
1022 /* */
1023 /* <Function> */
1024 /* FT_New_Face_From_FSSpec */
1025 /* */
1026 /* <Description> */
1027 /* FT_New_Face_From_FSSpec is identical to FT_New_Face except it */
1028 /* accepts an FSSpec instead of a path. */
1029 /* */
1030 /* This function is deprecated because FSSpec is deprecated in Mac OS X */
1031 FT_EXPORT_DEF( FT_Error )
1032 FT_New_Face_From_FSSpec( FT_Library library,
1033 const FSSpec* spec,
1034 FT_Long face_index,
1035 FT_Face* aface )
1036 {
1037 #if ( __LP64__ ) || ( defined( MAC_OS_X_VERSION_10_5 ) && \
1038 ( MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 ) )
1039 FT_UNUSED( library );
1040 FT_UNUSED( spec );
1041 FT_UNUSED( face_index );
1042 FT_UNUSED( aface );
1043
1044 return FT_Err_Unimplemented_Feature;
1045 #else
1046 FSRef ref;
1047
1048
1049 if ( !spec || FSpMakeFSRef( spec, &ref ) != noErr )
1050 return FT_Err_Invalid_Argument;
1051 else
1052 return FT_New_Face_From_FSRef( library, &ref, face_index, aface );
1053 #endif
1054 }
1055
1056
1057 /* END */