1 /****************************************************************************
2 *
3 * sfobjs.c
4 *
5 * SFNT object management (base).
6 *
7 * Copyright (C) 1996-2019 by
8 * David Turner, Robert Wilhelm, and Werner Lemberg.
9 *
10 * This file is part of the FreeType project, and may only be used,
11 * modified, and distributed under the terms of the FreeType project
12 * license, LICENSE.TXT. By continuing to use, modify, or distribute
13 * this file you indicate that you have read the license and
14 * understand and accept it fully.
15 *
16 */
17
18
19 #include <ft2build.h>
20 #include "sfobjs.h"
21 #include "ttload.h"
22 #include "ttcmap.h"
23 #include "ttkern.h"
24 #include "sfwoff.h"
25 #include FT_INTERNAL_SFNT_H
26 #include FT_INTERNAL_DEBUG_H
27 #include FT_TRUETYPE_IDS_H
28 #include FT_TRUETYPE_TAGS_H
29 #include FT_SERVICE_POSTSCRIPT_CMAPS_H
30 #include FT_SFNT_NAMES_H
31
32 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
33 #include FT_SERVICE_MULTIPLE_MASTERS_H
34 #include FT_SERVICE_METRICS_VARIATIONS_H
35 #endif
36
37 #include "sferrors.h"
38
39 #ifdef TT_CONFIG_OPTION_BDF
40 #include "ttbdf.h"
41 #endif
42
43
44 /**************************************************************************
45 *
46 * The macro FT_COMPONENT is used in trace mode. It is an implicit
47 * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
48 * messages during execution.
49 */
50 #undef FT_COMPONENT
51 #define FT_COMPONENT sfobjs
52
53
54
55 /* convert a UTF-16 name entry to ASCII */
56 static FT_String*
57 tt_name_ascii_from_utf16( TT_Name entry,
58 FT_Memory memory )
59 {
60 FT_String* string = NULL;
61 FT_UInt len, code, n;
62 FT_Byte* read = (FT_Byte*)entry->string;
63 FT_Error error;
64
65
66 len = (FT_UInt)entry->stringLength / 2;
67
68 if ( FT_NEW_ARRAY( string, len + 1 ) )
69 return NULL;
70
71 for ( n = 0; n < len; n++ )
72 {
73 code = FT_NEXT_USHORT( read );
74
75 if ( code == 0 )
76 break;
77
78 if ( code < 32 || code > 127 )
79 code = '?';
80
81 string[n] = (char)code;
82 }
83
84 string[n] = 0;
85
86 return string;
87 }
88
89
90 /* convert an Apple Roman or symbol name entry to ASCII */
91 static FT_String*
92 tt_name_ascii_from_other( TT_Name entry,
93 FT_Memory memory )
94 {
95 FT_String* string = NULL;
96 FT_UInt len, code, n;
97 FT_Byte* read = (FT_Byte*)entry->string;
98 FT_Error error;
99
100
101 len = (FT_UInt)entry->stringLength;
102
103 if ( FT_NEW_ARRAY( string, len + 1 ) )
104 return NULL;
105
106 for ( n = 0; n < len; n++ )
107 {
108 code = *read++;
109
110 if ( code == 0 )
111 break;
112
113 if ( code < 32 || code > 127 )
114 code = '?';
115
116 string[n] = (char)code;
117 }
118
119 string[n] = 0;
120
121 return string;
122 }
123
124
125 typedef FT_String* (*TT_Name_ConvertFunc)( TT_Name entry,
126 FT_Memory memory );
127
128
129 /* documentation is in sfnt.h */
130
131 FT_LOCAL_DEF( FT_Error )
132 tt_face_get_name( TT_Face face,
133 FT_UShort nameid,
134 FT_String** name )
135 {
136 FT_Memory memory = face->root.memory;
137 FT_Error error = FT_Err_Ok;
138 FT_String* result = NULL;
139 FT_UShort n;
140 TT_Name rec;
141
142 FT_Int found_apple = -1;
143 FT_Int found_apple_roman = -1;
144 FT_Int found_apple_english = -1;
145 FT_Int found_win = -1;
146 FT_Int found_unicode = -1;
147
148 FT_Bool is_english = 0;
149
150 TT_Name_ConvertFunc convert;
151
152
153 FT_ASSERT( name );
154
155 rec = face->name_table.names;
156 for ( n = 0; n < face->num_names; n++, rec++ )
157 {
158 /* According to the OpenType 1.3 specification, only Microsoft or */
159 /* Apple platform IDs might be used in the `name' table. The */
160 /* `Unicode' platform is reserved for the `cmap' table, and the */
161 /* `ISO' one is deprecated. */
162 /* */
163 /* However, the Apple TrueType specification doesn't say the same */
164 /* thing and goes to suggest that all Unicode `name' table entries */
165 /* should be coded in UTF-16 (in big-endian format I suppose). */
166 /* */
167 if ( rec->nameID == nameid && rec->stringLength > 0 )
168 {
169 switch ( rec->platformID )
170 {
171 case TT_PLATFORM_APPLE_UNICODE:
172 case TT_PLATFORM_ISO:
173 /* there is `languageID' to check there. We should use this */
174 /* field only as a last solution when nothing else is */
175 /* available. */
176 /* */
177 found_unicode = n;
178 break;
179
180 case TT_PLATFORM_MACINTOSH:
181 /* This is a bit special because some fonts will use either */
182 /* an English language id, or a Roman encoding id, to indicate */
183 /* the English version of its font name. */
184 /* */
185 if ( rec->languageID == TT_MAC_LANGID_ENGLISH )
186 found_apple_english = n;
187 else if ( rec->encodingID == TT_MAC_ID_ROMAN )
188 found_apple_roman = n;
189 break;
190
191 case TT_PLATFORM_MICROSOFT:
192 /* we only take a non-English name when there is nothing */
193 /* else available in the font */
194 /* */
195 if ( found_win == -1 || ( rec->languageID & 0x3FF ) == 0x009 )
196 {
197 switch ( rec->encodingID )
198 {
199 case TT_MS_ID_SYMBOL_CS:
200 case TT_MS_ID_UNICODE_CS:
201 case TT_MS_ID_UCS_4:
202 is_english = FT_BOOL( ( rec->languageID & 0x3FF ) == 0x009 );
203 found_win = n;
204 break;
205
206 default:
207 ;
208 }
209 }
210 break;
211
212 default:
213 ;
214 }
215 }
216 }
217
218 found_apple = found_apple_roman;
219 if ( found_apple_english >= 0 )
220 found_apple = found_apple_english;
221
222 /* some fonts contain invalid Unicode or Macintosh formatted entries; */
223 /* we will thus favor names encoded in Windows formats if available */
224 /* (provided it is an English name) */
225 /* */
226 convert = NULL;
227 if ( found_win >= 0 && !( found_apple >= 0 && !is_english ) )
228 {
229 rec = face->name_table.names + found_win;
230 switch ( rec->encodingID )
231 {
232 /* all Unicode strings are encoded using UTF-16BE */
233 case TT_MS_ID_UNICODE_CS:
234 case TT_MS_ID_SYMBOL_CS:
235 convert = tt_name_ascii_from_utf16;
236 break;
237
238 case TT_MS_ID_UCS_4:
239 /* Apparently, if this value is found in a name table entry, it is */
240 /* documented as `full Unicode repertoire'. Experience with the */
241 /* MsGothic font shipped with Windows Vista shows that this really */
242 /* means UTF-16 encoded names (UCS-4 values are only used within */
243 /* charmaps). */
244 convert = tt_name_ascii_from_utf16;
245 break;
246
247 default:
248 ;
249 }
250 }
251 else if ( found_apple >= 0 )
252 {
253 rec = face->name_table.names + found_apple;
254 convert = tt_name_ascii_from_other;
255 }
256 else if ( found_unicode >= 0 )
257 {
258 rec = face->name_table.names + found_unicode;
259 convert = tt_name_ascii_from_utf16;
260 }
261
262 if ( rec && convert )
263 {
264 if ( !rec->string )
265 {
266 FT_Stream stream = face->name_table.stream;
267
268
269 if ( FT_QNEW_ARRAY ( rec->string, rec->stringLength ) ||
270 FT_STREAM_SEEK( rec->stringOffset ) ||
271 FT_STREAM_READ( rec->string, rec->stringLength ) )
272 {
273 FT_FREE( rec->string );
274 rec->stringLength = 0;
275 result = NULL;
276 goto Exit;
277 }
278 }
279
280 result = convert( rec, memory );
281 }
282
283 Exit:
284 *name = result;
285 return error;
286 }
287
288
289 static FT_Encoding
290 sfnt_find_encoding( int platform_id,
291 int encoding_id )
292 {
293 typedef struct TEncoding_
294 {
295 int platform_id;
296 int encoding_id;
297 FT_Encoding encoding;
298
299 } TEncoding;
300
301 static
302 const TEncoding tt_encodings[] =
303 {
304 { TT_PLATFORM_ISO, -1, FT_ENCODING_UNICODE },
305
306 { TT_PLATFORM_APPLE_UNICODE, -1, FT_ENCODING_UNICODE },
307
308 { TT_PLATFORM_MACINTOSH, TT_MAC_ID_ROMAN, FT_ENCODING_APPLE_ROMAN },
309
310 { TT_PLATFORM_MICROSOFT, TT_MS_ID_SYMBOL_CS, FT_ENCODING_MS_SYMBOL },
311 { TT_PLATFORM_MICROSOFT, TT_MS_ID_UCS_4, FT_ENCODING_UNICODE },
312 { TT_PLATFORM_MICROSOFT, TT_MS_ID_UNICODE_CS, FT_ENCODING_UNICODE },
313 { TT_PLATFORM_MICROSOFT, TT_MS_ID_SJIS, FT_ENCODING_SJIS },
314 { TT_PLATFORM_MICROSOFT, TT_MS_ID_PRC, FT_ENCODING_PRC },
315 { TT_PLATFORM_MICROSOFT, TT_MS_ID_BIG_5, FT_ENCODING_BIG5 },
316 { TT_PLATFORM_MICROSOFT, TT_MS_ID_WANSUNG, FT_ENCODING_WANSUNG },
317 { TT_PLATFORM_MICROSOFT, TT_MS_ID_JOHAB, FT_ENCODING_JOHAB }
318 };
319
320 const TEncoding *cur, *limit;
321
322
323 cur = tt_encodings;
324 limit = cur + sizeof ( tt_encodings ) / sizeof ( tt_encodings[0] );
325
326 for ( ; cur < limit; cur++ )
327 {
328 if ( cur->platform_id == platform_id )
329 {
330 if ( cur->encoding_id == encoding_id ||
331 cur->encoding_id == -1 )
332 return cur->encoding;
333 }
334 }
335
336 return FT_ENCODING_NONE;
337 }
338
339
340 /* Fill in face->ttc_header. If the font is not a TTC, it is */
341 /* synthesized into a TTC with one offset table. */
342 static FT_Error
343 sfnt_open_font( FT_Stream stream,
344 TT_Face face )
345 {
346 FT_Memory memory = stream->memory;
347 FT_Error error;
348 FT_ULong tag, offset;
349
350 static const FT_Frame_Field ttc_header_fields[] =
351 {
352 #undef FT_STRUCTURE
353 #define FT_STRUCTURE TTC_HeaderRec
354
355 FT_FRAME_START( 8 ),
356 FT_FRAME_LONG( version ),
357 FT_FRAME_LONG( count ), /* this is ULong in the specs */
358 FT_FRAME_END
359 };
360
361
362 face->ttc_header.tag = 0;
363 face->ttc_header.version = 0;
364 face->ttc_header.count = 0;
365
366 retry:
367 offset = FT_STREAM_POS();
368
369 if ( FT_READ_ULONG( tag ) )
370 return error;
371
372 if ( tag == TTAG_wOFF )
373 {
374 FT_TRACE2(( "sfnt_open_font: file is a WOFF; synthesizing SFNT\n" ));
375
376 if ( FT_STREAM_SEEK( offset ) )
377 return error;
378
379 error = woff_open_font( stream, face );
380 if ( error )
381 return error;
382
383 /* Swap out stream and retry! */
384 stream = face->root.stream;
385 goto retry;
386 }
387
388 if ( tag != 0x00010000UL &&
389 tag != TTAG_ttcf &&
390 tag != TTAG_OTTO &&
391 tag != TTAG_true &&
392 tag != TTAG_typ1 &&
393 tag != TTAG_0xA5kbd &&
394 tag != TTAG_0xA5lst &&
395 tag != 0x00020000UL )
396 {
397 FT_TRACE2(( " not a font using the SFNT container format\n" ));
398 return FT_THROW( Unknown_File_Format );
399 }
400
401 face->ttc_header.tag = TTAG_ttcf;
402
403 if ( tag == TTAG_ttcf )
404 {
405 FT_Int n;
406
407
408 FT_TRACE3(( "sfnt_open_font: file is a collection\n" ));
409
410 if ( FT_STREAM_READ_FIELDS( ttc_header_fields, &face->ttc_header ) )
411 return error;
412
413 FT_TRACE3(( " with %ld subfonts\n",
414 face->ttc_header.count ));
415
416 if ( face->ttc_header.count == 0 )
417 return FT_THROW( Invalid_Table );
418
419 /* a rough size estimate: let's conservatively assume that there */
420 /* is just a single table info in each subfont header (12 + 16*1 = */
421 /* 28 bytes), thus we have (at least) `12 + 4*count' bytes for the */
422 /* size of the TTC header plus `28*count' bytes for all subfont */
423 /* headers */
424 if ( (FT_ULong)face->ttc_header.count > stream->size / ( 28 + 4 ) )
425 return FT_THROW( Array_Too_Large );
426
427 /* now read the offsets of each font in the file */
428 if ( FT_NEW_ARRAY( face->ttc_header.offsets, face->ttc_header.count ) )
429 return error;
430
431 if ( FT_FRAME_ENTER( face->ttc_header.count * 4L ) )
432 return error;
433
434 for ( n = 0; n < face->ttc_header.count; n++ )
435 face->ttc_header.offsets[n] = FT_GET_ULONG();
436
437 FT_FRAME_EXIT();
438 }
439 else
440 {
441 FT_TRACE3(( "sfnt_open_font: synthesize TTC\n" ));
442
443 face->ttc_header.version = 1 << 16;
444 face->ttc_header.count = 1;
445
446 if ( FT_NEW( face->ttc_header.offsets ) )
447 return error;
448
449 face->ttc_header.offsets[0] = offset;
450 }
451
452 return error;
453 }
454
455
456 FT_LOCAL_DEF( FT_Error )
457 sfnt_init_face( FT_Stream stream,
458 TT_Face face,
459 FT_Int face_instance_index,
460 FT_Int num_params,
461 FT_Parameter* params )
462 {
463 FT_Error error;
464 FT_Library library = face->root.driver->root.library;
465 SFNT_Service sfnt;
466 FT_Int face_index;
467
468
469 /* for now, parameters are unused */
470 FT_UNUSED( num_params );
471 FT_UNUSED( params );
472
473
474 sfnt = (SFNT_Service)face->sfnt;
475 if ( !sfnt )
476 {
477 sfnt = (SFNT_Service)FT_Get_Module_Interface( library, "sfnt" );
478 if ( !sfnt )
479 {
480 FT_ERROR(( "sfnt_init_face: cannot access `sfnt' module\n" ));
481 return FT_THROW( Missing_Module );
482 }
483
484 face->sfnt = sfnt;
485 face->goto_table = sfnt->goto_table;
486 }
487
488 FT_FACE_FIND_GLOBAL_SERVICE( face, face->psnames, POSTSCRIPT_CMAPS );
489
490 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
491 if ( !face->mm )
492 {
493 /* we want the MM interface from the `truetype' module only */
494 FT_Module tt_module = FT_Get_Module( library, "truetype" );
495
496
497 face->mm = ft_module_get_service( tt_module,
498 FT_SERVICE_ID_MULTI_MASTERS,
499 0 );
500 }
501
502 if ( !face->var )
503 {
504 /* we want the metrics variations interface */
505 /* from the `truetype' module only */
506 FT_Module tt_module = FT_Get_Module( library, "truetype" );
507
508
509 face->var = ft_module_get_service( tt_module,
510 FT_SERVICE_ID_METRICS_VARIATIONS,
511 0 );
512 }
513 #endif
514
515 FT_TRACE2(( "SFNT driver\n" ));
516
517 error = sfnt_open_font( stream, face );
518 if ( error )
519 return error;
520
521 /* Stream may have changed in sfnt_open_font. */
522 stream = face->root.stream;
523
524 FT_TRACE2(( "sfnt_init_face: %08p (index %d)\n",
525 face,
526 face_instance_index ));
527
528 face_index = FT_ABS( face_instance_index ) & 0xFFFF;
529
530 /* value -(N+1) requests information on index N */
531 if ( face_instance_index < 0 )
532 face_index--;
533
534 if ( face_index >= face->ttc_header.count )
535 {
536 if ( face_instance_index >= 0 )
537 return FT_THROW( Invalid_Argument );
538 else
539 face_index = 0;
540 }
541
542 if ( FT_STREAM_SEEK( face->ttc_header.offsets[face_index] ) )
543 return error;
544
545 /* check whether we have a valid TrueType file */
546 error = sfnt->load_font_dir( face, stream );
547 if ( error )
548 return error;
549
550 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
551 {
552 FT_Memory memory = face->root.memory;
553
554 FT_ULong fvar_len;
555
556 FT_ULong version;
557 FT_ULong offset;
558
559 FT_UShort num_axes;
560 FT_UShort axis_size;
561 FT_UShort num_instances;
562 FT_UShort instance_size;
563
564 FT_Int instance_index;
565
566 FT_Byte* default_values = NULL;
567 FT_Byte* instance_values = NULL;
568
569
570 instance_index = FT_ABS( face_instance_index ) >> 16;
571
572 /* test whether current face is a GX font with named instances */
573 if ( face->goto_table( face, TTAG_fvar, stream, &fvar_len ) ||
574 fvar_len < 20 ||
575 FT_READ_ULONG( version ) ||
576 FT_READ_USHORT( offset ) ||
577 FT_STREAM_SKIP( 2 ) /* reserved */ ||
578 FT_READ_USHORT( num_axes ) ||
579 FT_READ_USHORT( axis_size ) ||
580 FT_READ_USHORT( num_instances ) ||
581 FT_READ_USHORT( instance_size ) )
582 {
583 version = 0;
584 offset = 0;
585 num_axes = 0;
586 axis_size = 0;
587 num_instances = 0;
588 instance_size = 0;
589 }
590
591 /* check that the data is bound by the table length */
592 if ( version != 0x00010000UL ||
593 axis_size != 20 ||
594 num_axes == 0 ||
595 /* `num_axes' limit implied by 16-bit `instance_size' */
596 num_axes > 0x3FFE ||
597 !( instance_size == 4 + 4 * num_axes ||
598 instance_size == 6 + 4 * num_axes ) ||
599 /* `num_instances' limit implied by limited range of name IDs */
600 num_instances > 0x7EFF ||
601 offset +
602 axis_size * num_axes +
603 instance_size * num_instances > fvar_len )
604 num_instances = 0;
605 else
606 face->variation_support |= TT_FACE_FLAG_VAR_FVAR;
607
608 /*
609 * As documented in the OpenType specification, an entry for the
610 * default instance may be omitted in the named instance table. In
611 * particular this means that even if there is no named instance
612 * table in the font we actually do have a named instance, namely the
613 * default instance.
614 *
615 * For consistency, we always want the default instance in our list
616 * of named instances. If it is missing, we try to synthesize it
617 * later on. Here, we have to adjust `num_instances' accordingly.
618 */
619
620 if ( ( face->variation_support & TT_FACE_FLAG_VAR_FVAR ) &&
621 !( FT_ALLOC( default_values, num_axes * 4 ) ||
622 FT_ALLOC( instance_values, num_axes * 4 ) ) )
623 {
624 /* the current stream position is 16 bytes after the table start */
625 FT_ULong array_start = FT_STREAM_POS() - 16 + offset;
626 FT_ULong default_value_offset, instance_offset;
627
628 FT_Byte* p;
629 FT_UInt i;
630
631
632 default_value_offset = array_start + 8;
633 p = default_values;
634
635 for ( i = 0; i < num_axes; i++ )
636 {
637 (void)FT_STREAM_READ_AT( default_value_offset, p, 4 );
638
639 default_value_offset += axis_size;
640 p += 4;
641 }
642
643 instance_offset = array_start + axis_size * num_axes + 4;
644
645 for ( i = 0; i < num_instances; i++ )
646 {
647 (void)FT_STREAM_READ_AT( instance_offset,
648 instance_values,
649 num_axes * 4 );
650
651 if ( !ft_memcmp( default_values, instance_values, num_axes * 4 ) )
652 break;
653
654 instance_offset += instance_size;
655 }
656
657 if ( i == num_instances )
658 {
659 /* no default instance in named instance table; */
660 /* we thus have to synthesize it */
661 num_instances++;
662 }
663 }
664
665 FT_FREE( default_values );
666 FT_FREE( instance_values );
667
668 /* we don't support Multiple Master CFFs yet; */
669 /* note that `glyf' or `CFF2' have precedence */
670 if ( face->goto_table( face, TTAG_glyf, stream, 0 ) &&
671 face->goto_table( face, TTAG_CFF2, stream, 0 ) &&
672 !face->goto_table( face, TTAG_CFF, stream, 0 ) )
673 num_instances = 0;
674
675 /* instance indices in `face_instance_index' start with index 1, */
676 /* thus `>' and not `>=' */
677 if ( instance_index > num_instances )
678 {
679 if ( face_instance_index >= 0 )
680 return FT_THROW( Invalid_Argument );
681 else
682 num_instances = 0;
683 }
684
685 face->root.style_flags = (FT_Long)num_instances << 16;
686 }
687 #endif
688
689 face->root.num_faces = face->ttc_header.count;
690 face->root.face_index = face_instance_index;
691
692 return error;
693 }
694
695
696 #define LOAD_( x ) \
697 do \
698 { \
699 FT_TRACE2(( "`" #x "' " )); \
700 FT_TRACE3(( "-->\n" )); \
701 \
702 error = sfnt->load_ ## x( face, stream ); \
703 \
704 FT_TRACE2(( "%s\n", ( !error ) \
705 ? "loaded" \
706 : FT_ERR_EQ( error, Table_Missing ) \
707 ? "missing" \
708 : "failed to load" )); \
709 FT_TRACE3(( "\n" )); \
710 } while ( 0 )
711
712 #define LOADM_( x, vertical ) \
713 do \
714 { \
715 FT_TRACE2(( "`%s" #x "' ", \
716 vertical ? "vertical " : "" )); \
717 FT_TRACE3(( "-->\n" )); \
718 \
719 error = sfnt->load_ ## x( face, stream, vertical ); \
720 \
721 FT_TRACE2(( "%s\n", ( !error ) \
722 ? "loaded" \
723 : FT_ERR_EQ( error, Table_Missing ) \
724 ? "missing" \
725 : "failed to load" )); \
726 FT_TRACE3(( "\n" )); \
727 } while ( 0 )
728
729 #define GET_NAME( id, field ) \
730 do \
731 { \
732 error = tt_face_get_name( face, TT_NAME_ID_ ## id, field ); \
733 if ( error ) \
734 goto Exit; \
735 } while ( 0 )
736
737
738 FT_LOCAL_DEF( FT_Error )
739 sfnt_load_face( FT_Stream stream,
740 TT_Face face,
741 FT_Int face_instance_index,
742 FT_Int num_params,
743 FT_Parameter* params )
744 {
745 FT_Error error;
746 #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
747 FT_Error psnames_error;
748 #endif
749 FT_Bool has_outline;
750 FT_Bool is_apple_sbit;
751 FT_Bool is_apple_sbix;
752 FT_Bool has_CBLC;
753 FT_Bool has_CBDT;
754 FT_Bool ignore_typographic_family = FALSE;
755 FT_Bool ignore_typographic_subfamily = FALSE;
756
757 SFNT_Service sfnt = (SFNT_Service)face->sfnt;
758
759 FT_UNUSED( face_instance_index );
760
761
762 /* Check parameters */
763
764 {
765 FT_Int i;
766
767
768 for ( i = 0; i < num_params; i++ )
769 {
770 if ( params[i].tag == FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY )
771 ignore_typographic_family = TRUE;
772 else if ( params[i].tag == FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY )
773 ignore_typographic_subfamily = TRUE;
774 }
775 }
776
777 /* Load tables */
778
779 /* We now support two SFNT-based bitmapped font formats. They */
780 /* are recognized easily as they do not include a `glyf' */
781 /* table. */
782 /* */
783 /* The first format comes from Apple, and uses a table named */
784 /* `bhed' instead of `head' to store the font header (using */
785 /* the same format). It also doesn't include horizontal and */
786 /* vertical metrics tables (i.e. `hhea' and `vhea' tables are */
787 /* missing). */
788 /* */
789 /* The other format comes from Microsoft, and is used with */
790 /* WinCE/PocketPC. It looks like a standard TTF, except that */
791 /* it doesn't contain outlines. */
792 /* */
793
794 FT_TRACE2(( "sfnt_load_face: %08p\n\n", face ));
795
796 /* do we have outlines in there? */
797 #ifdef FT_CONFIG_OPTION_INCREMENTAL
798 has_outline = FT_BOOL( face->root.internal->incremental_interface ||
799 tt_face_lookup_table( face, TTAG_glyf ) ||
800 tt_face_lookup_table( face, TTAG_CFF ) ||
801 tt_face_lookup_table( face, TTAG_CFF2 ) );
802 #else
803 has_outline = FT_BOOL( tt_face_lookup_table( face, TTAG_glyf ) ||
804 tt_face_lookup_table( face, TTAG_CFF ) ||
805 tt_face_lookup_table( face, TTAG_CFF2 ) );
806 #endif
807
808 is_apple_sbit = 0;
809 is_apple_sbix = !face->goto_table( face, TTAG_sbix, stream, 0 );
810
811 /* Apple 'sbix' color bitmaps are rendered scaled and then the 'glyf'
812 * outline rendered on top. We don't support that yet, so just ignore
813 * the 'glyf' outline and advertise it as a bitmap-only font. */
814 if ( is_apple_sbix )
815 has_outline = FALSE;
816
817 /* if this font doesn't contain outlines, we try to load */
818 /* a `bhed' table */
819 if ( !has_outline && sfnt->load_bhed )
820 {
821 LOAD_( bhed );
822 is_apple_sbit = FT_BOOL( !error );
823 }
824
825 /* load the font header (`head' table) if this isn't an Apple */
826 /* sbit font file */
827 if ( !is_apple_sbit || is_apple_sbix )
828 {
829 LOAD_( head );
830 if ( error )
831 goto Exit;
832 }
833
834 has_CBLC = !face->goto_table( face, TTAG_CBLC, stream, 0 );
835 has_CBDT = !face->goto_table( face, TTAG_CBDT, stream, 0 );
836
837 /* Ignore outlines for CBLC/CBDT fonts. */
838 if ( has_CBLC || has_CBDT )
839 has_outline = FALSE;
840
841 /* OpenType 1.8.2 introduced limits to this value; */
842 /* however, they make sense for older SFNT fonts also */
843 if ( face->header.Units_Per_EM < 16 ||
844 face->header.Units_Per_EM > 16384 )
845 {
846 error = FT_THROW( Invalid_Table );
847
848 goto Exit;
849 }
850
851 /* the following tables are often not present in embedded TrueType */
852 /* fonts within PDF documents, so don't check for them. */
853 LOAD_( maxp );
854 LOAD_( cmap );
855
856 /* the following tables are optional in PCL fonts -- */
857 /* don't check for errors */
858 LOAD_( name );
859 LOAD_( post );
860
861 #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
862 psnames_error = error;
863 #endif
864
865 /* do not load the metrics headers and tables if this is an Apple */
866 /* sbit font file */
867 if ( !is_apple_sbit )
868 {
869 /* load the `hhea' and `hmtx' tables */
870 LOADM_( hhea, 0 );
871 if ( !error )
872 {
873 LOADM_( hmtx, 0 );
874 if ( FT_ERR_EQ( error, Table_Missing ) )
875 {
876 error = FT_THROW( Hmtx_Table_Missing );
877
878 #ifdef FT_CONFIG_OPTION_INCREMENTAL
879 /* If this is an incrementally loaded font and there are */
880 /* overriding metrics, tolerate a missing `hmtx' table. */
881 if ( face->root.internal->incremental_interface &&
882 face->root.internal->incremental_interface->funcs->
883 get_glyph_metrics )
884 {
885 face->horizontal.number_Of_HMetrics = 0;
886 error = FT_Err_Ok;
887 }
888 #endif
889 }
890 }
891 else if ( FT_ERR_EQ( error, Table_Missing ) )
892 {
893 /* No `hhea' table necessary for SFNT Mac fonts. */
894 if ( face->format_tag == TTAG_true )
895 {
896 FT_TRACE2(( "This is an SFNT Mac font.\n" ));
897
898 has_outline = 0;
899 error = FT_Err_Ok;
900 }
901 else
902 {
903 error = FT_THROW( Horiz_Header_Missing );
904
905 #ifdef FT_CONFIG_OPTION_INCREMENTAL
906 /* If this is an incrementally loaded font and there are */
907 /* overriding metrics, tolerate a missing `hhea' table. */
908 if ( face->root.internal->incremental_interface &&
909 face->root.internal->incremental_interface->funcs->
910 get_glyph_metrics )
911 {
912 face->horizontal.number_Of_HMetrics = 0;
913 error = FT_Err_Ok;
914 }
915 #endif
916
917 }
918 }
919
920 if ( error )
921 goto Exit;
922
923 /* try to load the `vhea' and `vmtx' tables */
924 LOADM_( hhea, 1 );
925 if ( !error )
926 {
927 LOADM_( hmtx, 1 );
928 if ( !error )
929 face->vertical_info = 1;
930 }
931
932 if ( error && FT_ERR_NEQ( error, Table_Missing ) )
933 goto Exit;
934
935 LOAD_( os2 );
936 if ( error )
937 {
938 /* we treat the table as missing if there are any errors */
939 face->os2.version = 0xFFFFU;
940 }
941 }
942
943 /* the optional tables */
944
945 /* embedded bitmap support */
946 if ( sfnt->load_eblc )
947 LOAD_( eblc );
948
949 /* colored glyph support */
950 if ( sfnt->load_cpal )
951 {
952 LOAD_( cpal );
953 LOAD_( colr );
954 }
955
956 /* consider the pclt, kerning, and gasp tables as optional */
957 LOAD_( pclt );
958 LOAD_( gasp );
959 LOAD_( kern );
960
961 face->root.num_glyphs = face->max_profile.numGlyphs;
962
963 /* Bit 8 of the `fsSelection' field in the `OS/2' table denotes */
964 /* a WWS-only font face. `WWS' stands for `weight', width', and */
965 /* `slope', a term used by Microsoft's Windows Presentation */
966 /* Foundation (WPF). This flag has been introduced in version */
967 /* 1.5 of the OpenType specification (May 2008). */
968
969 face->root.family_name = NULL;
970 face->root.style_name = NULL;
971 if ( face->os2.version != 0xFFFFU && face->os2.fsSelection & 256 )
972 {
973 if ( !ignore_typographic_family )
974 GET_NAME( TYPOGRAPHIC_FAMILY, &face->root.family_name );
975 if ( !face->root.family_name )
976 GET_NAME( FONT_FAMILY, &face->root.family_name );
977
978 if ( !ignore_typographic_subfamily )
979 GET_NAME( TYPOGRAPHIC_SUBFAMILY, &face->root.style_name );
980 if ( !face->root.style_name )
981 GET_NAME( FONT_SUBFAMILY, &face->root.style_name );
982 }
983 else
984 {
985 GET_NAME( WWS_FAMILY, &face->root.family_name );
986 if ( !face->root.family_name && !ignore_typographic_family )
987 GET_NAME( TYPOGRAPHIC_FAMILY, &face->root.family_name );
988 if ( !face->root.family_name )
989 GET_NAME( FONT_FAMILY, &face->root.family_name );
990
991 GET_NAME( WWS_SUBFAMILY, &face->root.style_name );
992 if ( !face->root.style_name && !ignore_typographic_subfamily )
993 GET_NAME( TYPOGRAPHIC_SUBFAMILY, &face->root.style_name );
994 if ( !face->root.style_name )
995 GET_NAME( FONT_SUBFAMILY, &face->root.style_name );
996 }
997
998 /* now set up root fields */
999 {
1000 FT_Face root = &face->root;
1001 FT_Long flags = root->face_flags;
1002
1003
1004 /**********************************************************************
1005 *
1006 * Compute face flags.
1007 */
1008 if ( face->sbit_table_type == TT_SBIT_TABLE_TYPE_CBLC ||
1009 face->sbit_table_type == TT_SBIT_TABLE_TYPE_SBIX ||
1010 face->colr )
1011 flags |= FT_FACE_FLAG_COLOR; /* color glyphs */
1012
1013 if ( has_outline == TRUE )
1014 flags |= FT_FACE_FLAG_SCALABLE; /* scalable outlines */
1015
1016 /* The sfnt driver only supports bitmap fonts natively, thus we */
1017 /* don't set FT_FACE_FLAG_HINTER. */
1018 flags |= FT_FACE_FLAG_SFNT | /* SFNT file format */
1019 FT_FACE_FLAG_HORIZONTAL; /* horizontal data */
1020
1021 #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
1022 if ( !psnames_error &&
1023 face->postscript.FormatType != 0x00030000L )
1024 flags |= FT_FACE_FLAG_GLYPH_NAMES;
1025 #endif
1026
1027 /* fixed width font? */
1028 if ( face->postscript.isFixedPitch )
1029 flags |= FT_FACE_FLAG_FIXED_WIDTH;
1030
1031 /* vertical information? */
1032 if ( face->vertical_info )
1033 flags |= FT_FACE_FLAG_VERTICAL;
1034
1035 /* kerning available ? */
1036 if ( TT_FACE_HAS_KERNING( face ) )
1037 flags |= FT_FACE_FLAG_KERNING;
1038
1039 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
1040 /* Don't bother to load the tables unless somebody asks for them. */
1041 /* No need to do work which will (probably) not be used. */
1042 if ( face->variation_support & TT_FACE_FLAG_VAR_FVAR )
1043 {
1044 if ( tt_face_lookup_table( face, TTAG_glyf ) != 0 &&
1045 tt_face_lookup_table( face, TTAG_gvar ) != 0 )
1046 flags |= FT_FACE_FLAG_MULTIPLE_MASTERS;
1047 if ( tt_face_lookup_table( face, TTAG_CFF2 ) != 0 )
1048 flags |= FT_FACE_FLAG_MULTIPLE_MASTERS;
1049 }
1050 #endif
1051
1052 root->face_flags = flags;
1053
1054 /**********************************************************************
1055 *
1056 * Compute style flags.
1057 */
1058
1059 flags = 0;
1060 if ( has_outline == TRUE && face->os2.version != 0xFFFFU )
1061 {
1062 /* We have an OS/2 table; use the `fsSelection' field. Bit 9 */
1063 /* indicates an oblique font face. This flag has been */
1064 /* introduced in version 1.5 of the OpenType specification. */
1065
1066 if ( face->os2.fsSelection & 512 ) /* bit 9 */
1067 flags |= FT_STYLE_FLAG_ITALIC;
1068 else if ( face->os2.fsSelection & 1 ) /* bit 0 */
1069 flags |= FT_STYLE_FLAG_ITALIC;
1070
1071 if ( face->os2.fsSelection & 32 ) /* bit 5 */
1072 flags |= FT_STYLE_FLAG_BOLD;
1073 }
1074 else
1075 {
1076 /* this is an old Mac font, use the header field */
1077
1078 if ( face->header.Mac_Style & 1 )
1079 flags |= FT_STYLE_FLAG_BOLD;
1080
1081 if ( face->header.Mac_Style & 2 )
1082 flags |= FT_STYLE_FLAG_ITALIC;
1083 }
1084
1085 root->style_flags |= flags;
1086
1087 /**********************************************************************
1088 *
1089 * Polish the charmaps.
1090 *
1091 * Try to set the charmap encoding according to the platform &
1092 * encoding ID of each charmap. Emulate Unicode charmap if one
1093 * is missing.
1094 */
1095
1096 tt_face_build_cmaps( face ); /* ignore errors */
1097
1098
1099 /* set the encoding fields */
1100 {
1101 FT_Int m;
1102 #ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES
1103 FT_Bool has_unicode = FALSE;
1104 #endif
1105
1106
1107 for ( m = 0; m < root->num_charmaps; m++ )
1108 {
1109 FT_CharMap charmap = root->charmaps[m];
1110
1111
1112 charmap->encoding = sfnt_find_encoding( charmap->platform_id,
1113 charmap->encoding_id );
1114
1115 #ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES
1116
1117 if ( charmap->encoding == FT_ENCODING_UNICODE ||
1118 charmap->encoding == FT_ENCODING_MS_SYMBOL ) /* PUA */
1119 has_unicode = TRUE;
1120 }
1121
1122 /* synthesize Unicode charmap if one is missing */
1123 if ( !has_unicode )
1124 {
1125 FT_CharMapRec cmaprec;
1126
1127
1128 cmaprec.face = root;
1129 cmaprec.platform_id = TT_PLATFORM_MICROSOFT;
1130 cmaprec.encoding_id = TT_MS_ID_UNICODE_CS;
1131 cmaprec.encoding = FT_ENCODING_UNICODE;
1132
1133
1134 error = FT_CMap_New( (FT_CMap_Class)&tt_cmap_unicode_class_rec,
1135 NULL, &cmaprec, NULL );
1136 if ( error &&
1137 FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) &&
1138 FT_ERR_NEQ( error, Unimplemented_Feature ) )
1139 goto Exit;
1140 error = FT_Err_Ok;
1141
1142 #endif /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES */
1143
1144 }
1145 }
1146
1147 #ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
1148
1149 /*
1150 * Now allocate the root array of FT_Bitmap_Size records and
1151 * populate them. Unfortunately, it isn't possible to indicate bit
1152 * depths in the FT_Bitmap_Size record. This is a design error.
1153 */
1154 {
1155 FT_UInt count;
1156
1157
1158 count = face->sbit_num_strikes;
1159
1160 if ( count > 0 )
1161 {
1162 FT_Memory memory = face->root.stream->memory;
1163 FT_UShort em_size = face->header.Units_Per_EM;
1164 FT_Short avgwidth = face->os2.xAvgCharWidth;
1165 FT_Size_Metrics metrics;
1166
1167 FT_UInt* sbit_strike_map = NULL;
1168 FT_UInt strike_idx, bsize_idx;
1169
1170
1171 if ( em_size == 0 || face->os2.version == 0xFFFFU )
1172 {
1173 avgwidth = 1;
1174 em_size = 1;
1175 }
1176
1177 /* to avoid invalid strike data in the `available_sizes' field */
1178 /* of `FT_Face', we map `available_sizes' indices to strike */
1179 /* indices */
1180 if ( FT_NEW_ARRAY( root->available_sizes, count ) ||
1181 FT_NEW_ARRAY( sbit_strike_map, count ) )
1182 goto Exit;
1183
1184 bsize_idx = 0;
1185 for ( strike_idx = 0; strike_idx < count; strike_idx++ )
1186 {
1187 FT_Bitmap_Size* bsize = root->available_sizes + bsize_idx;
1188
1189
1190 error = sfnt->load_strike_metrics( face, strike_idx, &metrics );
1191 if ( error )
1192 continue;
1193
1194 bsize->height = (FT_Short)( metrics.height >> 6 );
1195 bsize->width = (FT_Short)(
1196 ( avgwidth * metrics.x_ppem + em_size / 2 ) / em_size );
1197
1198 bsize->x_ppem = metrics.x_ppem << 6;
1199 bsize->y_ppem = metrics.y_ppem << 6;
1200
1201 /* assume 72dpi */
1202 bsize->size = metrics.y_ppem << 6;
1203
1204 /* only use strikes with valid PPEM values */
1205 if ( bsize->x_ppem && bsize->y_ppem )
1206 sbit_strike_map[bsize_idx++] = strike_idx;
1207 }
1208
1209 /* reduce array size to the actually used elements */
1210 (void)FT_RENEW_ARRAY( sbit_strike_map, count, bsize_idx );
1211
1212 /* from now on, all strike indices are mapped */
1213 /* using `sbit_strike_map' */
1214 if ( bsize_idx )
1215 {
1216 face->sbit_strike_map = sbit_strike_map;
1217
1218 root->face_flags |= FT_FACE_FLAG_FIXED_SIZES;
1219 root->num_fixed_sizes = (FT_Int)bsize_idx;
1220 }
1221 }
1222 }
1223
1224 #endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
1225
1226 /* a font with no bitmaps and no outlines is scalable; */
1227 /* it has only empty glyphs then */
1228 if ( !FT_HAS_FIXED_SIZES( root ) && !FT_IS_SCALABLE( root ) )
1229 root->face_flags |= FT_FACE_FLAG_SCALABLE;
1230
1231
1232 /**********************************************************************
1233 *
1234 * Set up metrics.
1235 */
1236 if ( FT_IS_SCALABLE( root ) )
1237 {
1238 /* XXX What about if outline header is missing */
1239 /* (e.g. sfnt wrapped bitmap)? */
1240 root->bbox.xMin = face->header.xMin;
1241 root->bbox.yMin = face->header.yMin;
1242 root->bbox.xMax = face->header.xMax;
1243 root->bbox.yMax = face->header.yMax;
1244 root->units_per_EM = face->header.Units_Per_EM;
1245
1246
1247 /*
1248 * Computing the ascender/descender/height is tricky.
1249 *
1250 * The OpenType specification v1.8.3 says:
1251 *
1252 * [OS/2's] sTypoAscender, sTypoDescender and sTypoLineGap fields
1253 * are intended to allow applications to lay out documents in a
1254 * typographically-correct and portable fashion.
1255 *
1256 * This is somewhat at odds with the decades of backwards
1257 * compatibility, operating systems and applications doing whatever
1258 * they want, not to mention broken fonts.
1259 *
1260 * Not all fonts have an OS/2 table; in this case, we take the values
1261 * in the horizontal header, although there is nothing stopping the
1262 * values from being unreliable. Even with a OS/2 table, certain fonts
1263 * set the sTypoAscender, sTypoDescender and sTypoLineGap fields to 0
1264 * and instead correctly set usWinAscent and usWinDescent.
1265 *
1266 * As an example, Arial Narrow is shipped as four files ARIALN.TTF,
1267 * ARIALNI.TTF, ARIALNB.TTF and ARIALNBI.TTF. Strangely, all fonts have
1268 * the same values in their sTypo* fields, except ARIALNB.ttf which
1269 * sets them to 0. All of them have different usWinAscent/Descent
1270 * values. The OS/2 table therefore cannot be trusted for computing the
1271 * text height reliably.
1272 *
1273 * As a compromise, do the following:
1274 *
1275 * 1. If the OS/2 table exists and the fsSelection bit 7 is set
1276 * (USE_TYPO_METRICS), trust the font and use the sTypo* metrics.
1277 * 2. Otherwise, use the `hhea' table's metrics.
1278 * 3. If they are zero and the OS/2 table exists,
1279 * 1. use the OS/2 table's sTypo* metrics if they are non-zero.
1280 * 2. Otherwise, use the OS/2 table's usWin* metrics.
1281 */
1282
1283 if ( face->os2.version != 0xFFFFU && face->os2.fsSelection & 128 )
1284 {
1285 root->ascender = face->os2.sTypoAscender;
1286 root->descender = face->os2.sTypoDescender;
1287 root->height = root->ascender - root->descender +
1288 face->os2.sTypoLineGap;
1289 }
1290 else
1291 {
1292 root->ascender = face->horizontal.Ascender;
1293 root->descender = face->horizontal.Descender;
1294 root->height = root->ascender - root->descender +
1295 face->horizontal.Line_Gap;
1296
1297 if ( !( root->ascender || root->descender ) )
1298 {
1299 if ( face->os2.version != 0xFFFFU )
1300 {
1301 if ( face->os2.sTypoAscender || face->os2.sTypoDescender )
1302 {
1303 root->ascender = face->os2.sTypoAscender;
1304 root->descender = face->os2.sTypoDescender;
1305 root->height = root->ascender - root->descender +
1306 face->os2.sTypoLineGap;
1307 }
1308 else
1309 {
1310 root->ascender = (FT_Short)face->os2.usWinAscent;
1311 root->descender = -(FT_Short)face->os2.usWinDescent;
1312 root->height = root->ascender - root->descender;
1313 }
1314 }
1315 }
1316 }
1317
1318 root->max_advance_width =
1319 (FT_Short)face->horizontal.advance_Width_Max;
1320 root->max_advance_height =
1321 (FT_Short)( face->vertical_info ? face->vertical.advance_Height_Max
1322 : root->height );
1323
1324 /* See https://www.microsoft.com/typography/otspec/post.htm -- */
1325 /* Adjust underline position from top edge to centre of */
1326 /* stroke to convert TrueType meaning to FreeType meaning. */
1327 root->underline_position = face->postscript.underlinePosition -
1328 face->postscript.underlineThickness / 2;
1329 root->underline_thickness = face->postscript.underlineThickness;
1330 }
1331
1332 }
1333
1334 Exit:
1335 FT_TRACE2(( "sfnt_load_face: done\n" ));
1336
1337 return error;
1338 }
1339
1340
1341 #undef LOAD_
1342 #undef LOADM_
1343 #undef GET_NAME
1344
1345
1346 FT_LOCAL_DEF( void )
1347 sfnt_done_face( TT_Face face )
1348 {
1349 FT_Memory memory;
1350 SFNT_Service sfnt;
1351
1352
1353 if ( !face )
1354 return;
1355
1356 memory = face->root.memory;
1357 sfnt = (SFNT_Service)face->sfnt;
1358
1359 if ( sfnt )
1360 {
1361 /* destroy the postscript names table if it is loaded */
1362 if ( sfnt->free_psnames )
1363 sfnt->free_psnames( face );
1364
1365 /* destroy the embedded bitmaps table if it is loaded */
1366 if ( sfnt->free_eblc )
1367 sfnt->free_eblc( face );
1368
1369 /* destroy color table data if it is loaded */
1370 if ( sfnt->free_cpal )
1371 {
1372 sfnt->free_cpal( face );
1373 sfnt->free_colr( face );
1374 }
1375 }
1376
1377 #ifdef TT_CONFIG_OPTION_BDF
1378 /* freeing the embedded BDF properties */
1379 tt_face_free_bdf_props( face );
1380 #endif
1381
1382 /* freeing the kerning table */
1383 tt_face_done_kern( face );
1384
1385 /* freeing the collection table */
1386 FT_FREE( face->ttc_header.offsets );
1387 face->ttc_header.count = 0;
1388
1389 /* freeing table directory */
1390 FT_FREE( face->dir_tables );
1391 face->num_tables = 0;
1392
1393 {
1394 FT_Stream stream = FT_FACE_STREAM( face );
1395
1396
1397 /* simply release the 'cmap' table frame */
1398 FT_FRAME_RELEASE( face->cmap_table );
1399 face->cmap_size = 0;
1400 }
1401
1402 face->horz_metrics_size = 0;
1403 face->vert_metrics_size = 0;
1404
1405 /* freeing vertical metrics, if any */
1406 if ( face->vertical_info )
1407 {
1408 FT_FREE( face->vertical.long_metrics );
1409 FT_FREE( face->vertical.short_metrics );
1410 face->vertical_info = 0;
1411 }
1412
1413 /* freeing the gasp table */
1414 FT_FREE( face->gasp.gaspRanges );
1415 face->gasp.numRanges = 0;
1416
1417 /* freeing the name table */
1418 if ( sfnt )
1419 sfnt->free_name( face );
1420
1421 /* freeing family and style name */
1422 FT_FREE( face->root.family_name );
1423 FT_FREE( face->root.style_name );
1424
1425 /* freeing sbit size table */
1426 FT_FREE( face->root.available_sizes );
1427 FT_FREE( face->sbit_strike_map );
1428 face->root.num_fixed_sizes = 0;
1429
1430 FT_FREE( face->postscript_name );
1431
1432 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
1433 FT_FREE( face->var_postscript_prefix );
1434 #endif
1435
1436 /* freeing glyph color palette data */
1437 FT_FREE( face->palette_data.palette_name_ids );
1438 FT_FREE( face->palette_data.palette_flags );
1439 FT_FREE( face->palette_data.palette_entry_name_ids );
1440 FT_FREE( face->palette );
1441
1442 face->sfnt = NULL;
1443 }
1444
1445
1446 /* END */