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1 /***************************************************************************/
2 /* */
3 /* tttables.h */
4 /* */
5 /* Basic SFNT/TrueType tables definitions and interface */
6 /* (specification only). */
7 /* */
8 /* Copyright 1996-2005, 2008-2012 by */
9 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
10 /* */
11 /* This file is part of the FreeType project, and may only be used, */
12 /* modified, and distributed under the terms of the FreeType project */
13 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
14 /* this file you indicate that you have read the license and */
15 /* understand and accept it fully. */
16 /* */
17 /***************************************************************************/
18
19
20 #ifndef __TTTABLES_H__
21 #define __TTTABLES_H__
22
23
24 #include <ft2build.h>
25 #include FT_FREETYPE_H
26
27 #ifdef FREETYPE_H
28 #error "freetype.h of FreeType 1 has been loaded!"
29 #error "Please fix the directory search order for header files"
30 #error "so that freetype.h of FreeType 2 is found first."
31 #endif
32
33
34 FT_BEGIN_HEADER
35
36 /*************************************************************************/
37 /* */
38 /* <Section> */
39 /* truetype_tables */
40 /* */
41 /* <Title> */
42 /* TrueType Tables */
43 /* */
44 /* <Abstract> */
45 /* TrueType specific table types and functions. */
46 /* */
47 /* <Description> */
48 /* This section contains the definition of TrueType-specific tables */
49 /* as well as some routines used to access and process them. */
50 /* */
51 /*************************************************************************/
52
53
54 /*************************************************************************/
55 /* */
56 /* <Struct> */
57 /* TT_Header */
58 /* */
59 /* <Description> */
60 /* A structure used to model a TrueType font header table. All */
61 /* fields follow the TrueType specification. */
62 /* */
63 typedef struct TT_Header_
64 {
65 FT_Fixed Table_Version;
66 FT_Fixed Font_Revision;
67
68 FT_Long CheckSum_Adjust;
69 FT_Long Magic_Number;
70
71 FT_UShort Flags;
72 FT_UShort Units_Per_EM;
73
74 FT_Long Created [2];
75 FT_Long Modified[2];
76
77 FT_Short xMin;
78 FT_Short yMin;
79 FT_Short xMax;
80 FT_Short yMax;
81
82 FT_UShort Mac_Style;
83 FT_UShort Lowest_Rec_PPEM;
84
85 FT_Short Font_Direction;
86 FT_Short Index_To_Loc_Format;
87 FT_Short Glyph_Data_Format;
88
89 } TT_Header;
90
91
92 /*************************************************************************/
93 /* */
94 /* <Struct> */
95 /* TT_HoriHeader */
96 /* */
97 /* <Description> */
98 /* A structure used to model a TrueType horizontal header, the `hhea' */
99 /* table, as well as the corresponding horizontal metrics table, */
100 /* i.e., the `hmtx' table. */
101 /* */
102 /* <Fields> */
103 /* Version :: The table version. */
104 /* */
105 /* Ascender :: The font's ascender, i.e., the distance */
106 /* from the baseline to the top-most of all */
107 /* glyph points found in the font. */
108 /* */
109 /* This value is invalid in many fonts, as */
110 /* it is usually set by the font designer, */
111 /* and often reflects only a portion of the */
112 /* glyphs found in the font (maybe ASCII). */
113 /* */
114 /* You should use the `sTypoAscender' field */
115 /* of the OS/2 table instead if you want */
116 /* the correct one. */
117 /* */
118 /* Descender :: The font's descender, i.e., the distance */
119 /* from the baseline to the bottom-most of */
120 /* all glyph points found in the font. It */
121 /* is negative. */
122 /* */
123 /* This value is invalid in many fonts, as */
124 /* it is usually set by the font designer, */
125 /* and often reflects only a portion of the */
126 /* glyphs found in the font (maybe ASCII). */
127 /* */
128 /* You should use the `sTypoDescender' */
129 /* field of the OS/2 table instead if you */
130 /* want the correct one. */
131 /* */
132 /* Line_Gap :: The font's line gap, i.e., the distance */
133 /* to add to the ascender and descender to */
134 /* get the BTB, i.e., the */
135 /* baseline-to-baseline distance for the */
136 /* font. */
137 /* */
138 /* advance_Width_Max :: This field is the maximum of all advance */
139 /* widths found in the font. It can be */
140 /* used to compute the maximum width of an */
141 /* arbitrary string of text. */
142 /* */
143 /* min_Left_Side_Bearing :: The minimum left side bearing of all */
144 /* glyphs within the font. */
145 /* */
146 /* min_Right_Side_Bearing :: The minimum right side bearing of all */
147 /* glyphs within the font. */
148 /* */
149 /* xMax_Extent :: The maximum horizontal extent (i.e., the */
150 /* `width' of a glyph's bounding box) for */
151 /* all glyphs in the font. */
152 /* */
153 /* caret_Slope_Rise :: The rise coefficient of the cursor's */
154 /* slope of the cursor (slope=rise/run). */
155 /* */
156 /* caret_Slope_Run :: The run coefficient of the cursor's */
157 /* slope. */
158 /* */
159 /* Reserved :: 8~reserved bytes. */
160 /* */
161 /* metric_Data_Format :: Always~0. */
162 /* */
163 /* number_Of_HMetrics :: Number of HMetrics entries in the `hmtx' */
164 /* table -- this value can be smaller than */
165 /* the total number of glyphs in the font. */
166 /* */
167 /* long_metrics :: A pointer into the `hmtx' table. */
168 /* */
169 /* short_metrics :: A pointer into the `hmtx' table. */
170 /* */
171 /* <Note> */
172 /* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */
173 /* be identical except for the names of their fields which */
174 /* are different. */
175 /* */
176 /* This ensures that a single function in the `ttload' */
177 /* module is able to read both the horizontal and vertical */
178 /* headers. */
179 /* */
180 typedef struct TT_HoriHeader_
181 {
182 FT_Fixed Version;
183 FT_Short Ascender;
184 FT_Short Descender;
185 FT_Short Line_Gap;
186
187 FT_UShort advance_Width_Max; /* advance width maximum */
188
189 FT_Short min_Left_Side_Bearing; /* minimum left-sb */
190 FT_Short min_Right_Side_Bearing; /* minimum right-sb */
191 FT_Short xMax_Extent; /* xmax extents */
192 FT_Short caret_Slope_Rise;
193 FT_Short caret_Slope_Run;
194 FT_Short caret_Offset;
195
196 FT_Short Reserved[4];
197
198 FT_Short metric_Data_Format;
199 FT_UShort number_Of_HMetrics;
200
201 /* The following fields are not defined by the TrueType specification */
202 /* but they are used to connect the metrics header to the relevant */
203 /* `HMTX' table. */
204
205 void* long_metrics;
206 void* short_metrics;
207
208 } TT_HoriHeader;
209
210
211 /*************************************************************************/
212 /* */
213 /* <Struct> */
214 /* TT_VertHeader */
215 /* */
216 /* <Description> */
217 /* A structure used to model a TrueType vertical header, the `vhea' */
218 /* table, as well as the corresponding vertical metrics table, i.e., */
219 /* the `vmtx' table. */
220 /* */
221 /* <Fields> */
222 /* Version :: The table version. */
223 /* */
224 /* Ascender :: The font's ascender, i.e., the distance */
225 /* from the baseline to the top-most of */
226 /* all glyph points found in the font. */
227 /* */
228 /* This value is invalid in many fonts, as */
229 /* it is usually set by the font designer, */
230 /* and often reflects only a portion of */
231 /* the glyphs found in the font (maybe */
232 /* ASCII). */
233 /* */
234 /* You should use the `sTypoAscender' */
235 /* field of the OS/2 table instead if you */
236 /* want the correct one. */
237 /* */
238 /* Descender :: The font's descender, i.e., the */
239 /* distance from the baseline to the */
240 /* bottom-most of all glyph points found */
241 /* in the font. It is negative. */
242 /* */
243 /* This value is invalid in many fonts, as */
244 /* it is usually set by the font designer, */
245 /* and often reflects only a portion of */
246 /* the glyphs found in the font (maybe */
247 /* ASCII). */
248 /* */
249 /* You should use the `sTypoDescender' */
250 /* field of the OS/2 table instead if you */
251 /* want the correct one. */
252 /* */
253 /* Line_Gap :: The font's line gap, i.e., the distance */
254 /* to add to the ascender and descender to */
255 /* get the BTB, i.e., the */
256 /* baseline-to-baseline distance for the */
257 /* font. */
258 /* */
259 /* advance_Height_Max :: This field is the maximum of all */
260 /* advance heights found in the font. It */
261 /* can be used to compute the maximum */
262 /* height of an arbitrary string of text. */
263 /* */
264 /* min_Top_Side_Bearing :: The minimum top side bearing of all */
265 /* glyphs within the font. */
266 /* */
267 /* min_Bottom_Side_Bearing :: The minimum bottom side bearing of all */
268 /* glyphs within the font. */
269 /* */
270 /* yMax_Extent :: The maximum vertical extent (i.e., the */
271 /* `height' of a glyph's bounding box) for */
272 /* all glyphs in the font. */
273 /* */
274 /* caret_Slope_Rise :: The rise coefficient of the cursor's */
275 /* slope of the cursor (slope=rise/run). */
276 /* */
277 /* caret_Slope_Run :: The run coefficient of the cursor's */
278 /* slope. */
279 /* */
280 /* caret_Offset :: The cursor's offset for slanted fonts. */
281 /* This value is `reserved' in vmtx */
282 /* version 1.0. */
283 /* */
284 /* Reserved :: 8~reserved bytes. */
285 /* */
286 /* metric_Data_Format :: Always~0. */
287 /* */
288 /* number_Of_HMetrics :: Number of VMetrics entries in the */
289 /* `vmtx' table -- this value can be */
290 /* smaller than the total number of glyphs */
291 /* in the font. */
292 /* */
293 /* long_metrics :: A pointer into the `vmtx' table. */
294 /* */
295 /* short_metrics :: A pointer into the `vmtx' table. */
296 /* */
297 /* <Note> */
298 /* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */
299 /* be identical except for the names of their fields which */
300 /* are different. */
301 /* */
302 /* This ensures that a single function in the `ttload' */
303 /* module is able to read both the horizontal and vertical */
304 /* headers. */
305 /* */
306 typedef struct TT_VertHeader_
307 {
308 FT_Fixed Version;
309 FT_Short Ascender;
310 FT_Short Descender;
311 FT_Short Line_Gap;
312
313 FT_UShort advance_Height_Max; /* advance height maximum */
314
315 FT_Short min_Top_Side_Bearing; /* minimum left-sb or top-sb */
316 FT_Short min_Bottom_Side_Bearing; /* minimum right-sb or bottom-sb */
317 FT_Short yMax_Extent; /* xmax or ymax extents */
318 FT_Short caret_Slope_Rise;
319 FT_Short caret_Slope_Run;
320 FT_Short caret_Offset;
321
322 FT_Short Reserved[4];
323
324 FT_Short metric_Data_Format;
325 FT_UShort number_Of_VMetrics;
326
327 /* The following fields are not defined by the TrueType specification */
328 /* but they're used to connect the metrics header to the relevant */
329 /* `HMTX' or `VMTX' table. */
330
331 void* long_metrics;
332 void* short_metrics;
333
334 } TT_VertHeader;
335
336
337 /*************************************************************************/
338 /* */
339 /* <Struct> */
340 /* TT_OS2 */
341 /* */
342 /* <Description> */
343 /* A structure used to model a TrueType OS/2 table. This is the long */
344 /* table version. All fields comply to the TrueType specification. */
345 /* */
346 /* Note that we now support old Mac fonts which do not include an */
347 /* OS/2 table. In this case, the `version' field is always set to */
348 /* 0xFFFF. */
349 /* */
350 typedef struct TT_OS2_
351 {
352 FT_UShort version; /* 0x0001 - more or 0xFFFF */
353 FT_Short xAvgCharWidth;
354 FT_UShort usWeightClass;
355 FT_UShort usWidthClass;
356 FT_Short fsType;
357 FT_Short ySubscriptXSize;
358 FT_Short ySubscriptYSize;
359 FT_Short ySubscriptXOffset;
360 FT_Short ySubscriptYOffset;
361 FT_Short ySuperscriptXSize;
362 FT_Short ySuperscriptYSize;
363 FT_Short ySuperscriptXOffset;
364 FT_Short ySuperscriptYOffset;
365 FT_Short yStrikeoutSize;
366 FT_Short yStrikeoutPosition;
367 FT_Short sFamilyClass;
368
369 FT_Byte panose[10];
370
371 FT_ULong ulUnicodeRange1; /* Bits 0-31 */
372 FT_ULong ulUnicodeRange2; /* Bits 32-63 */
373 FT_ULong ulUnicodeRange3; /* Bits 64-95 */
374 FT_ULong ulUnicodeRange4; /* Bits 96-127 */
375
376 FT_Char achVendID[4];
377
378 FT_UShort fsSelection;
379 FT_UShort usFirstCharIndex;
380 FT_UShort usLastCharIndex;
381 FT_Short sTypoAscender;
382 FT_Short sTypoDescender;
383 FT_Short sTypoLineGap;
384 FT_UShort usWinAscent;
385 FT_UShort usWinDescent;
386
387 /* only version 1 tables: */
388
389 FT_ULong ulCodePageRange1; /* Bits 0-31 */
390 FT_ULong ulCodePageRange2; /* Bits 32-63 */
391
392 /* only version 2 tables: */
393
394 FT_Short sxHeight;
395 FT_Short sCapHeight;
396 FT_UShort usDefaultChar;
397 FT_UShort usBreakChar;
398 FT_UShort usMaxContext;
399
400 } TT_OS2;
401
402
403 /*************************************************************************/
404 /* */
405 /* <Struct> */
406 /* TT_Postscript */
407 /* */
408 /* <Description> */
409 /* A structure used to model a TrueType PostScript table. All fields */
410 /* comply to the TrueType specification. This structure does not */
411 /* reference the PostScript glyph names, which can be nevertheless */
412 /* accessed with the `ttpost' module. */
413 /* */
414 typedef struct TT_Postscript_
415 {
416 FT_Fixed FormatType;
417 FT_Fixed italicAngle;
418 FT_Short underlinePosition;
419 FT_Short underlineThickness;
420 FT_ULong isFixedPitch;
421 FT_ULong minMemType42;
422 FT_ULong maxMemType42;
423 FT_ULong minMemType1;
424 FT_ULong maxMemType1;
425
426 /* Glyph names follow in the file, but we don't */
427 /* load them by default. See the ttpost.c file. */
428
429 } TT_Postscript;
430
431
432 /*************************************************************************/
433 /* */
434 /* <Struct> */
435 /* TT_PCLT */
436 /* */
437 /* <Description> */
438 /* A structure used to model a TrueType PCLT table. All fields */
439 /* comply to the TrueType specification. */
440 /* */
441 typedef struct TT_PCLT_
442 {
443 FT_Fixed Version;
444 FT_ULong FontNumber;
445 FT_UShort Pitch;
446 FT_UShort xHeight;
447 FT_UShort Style;
448 FT_UShort TypeFamily;
449 FT_UShort CapHeight;
450 FT_UShort SymbolSet;
451 FT_Char TypeFace[16];
452 FT_Char CharacterComplement[8];
453 FT_Char FileName[6];
454 FT_Char StrokeWeight;
455 FT_Char WidthType;
456 FT_Byte SerifStyle;
457 FT_Byte Reserved;
458
459 } TT_PCLT;
460
461
462 /*************************************************************************/
463 /* */
464 /* <Struct> */
465 /* TT_MaxProfile */
466 /* */
467 /* <Description> */
468 /* The maximum profile is a table containing many max values which */
469 /* can be used to pre-allocate arrays. This ensures that no memory */
470 /* allocation occurs during a glyph load. */
471 /* */
472 /* <Fields> */
473 /* version :: The version number. */
474 /* */
475 /* numGlyphs :: The number of glyphs in this TrueType */
476 /* font. */
477 /* */
478 /* maxPoints :: The maximum number of points in a */
479 /* non-composite TrueType glyph. See also */
480 /* the structure element */
481 /* `maxCompositePoints'. */
482 /* */
483 /* maxContours :: The maximum number of contours in a */
484 /* non-composite TrueType glyph. See also */
485 /* the structure element */
486 /* `maxCompositeContours'. */
487 /* */
488 /* maxCompositePoints :: The maximum number of points in a */
489 /* composite TrueType glyph. See also the */
490 /* structure element `maxPoints'. */
491 /* */
492 /* maxCompositeContours :: The maximum number of contours in a */
493 /* composite TrueType glyph. See also the */
494 /* structure element `maxContours'. */
495 /* */
496 /* maxZones :: The maximum number of zones used for */
497 /* glyph hinting. */
498 /* */
499 /* maxTwilightPoints :: The maximum number of points in the */
500 /* twilight zone used for glyph hinting. */
501 /* */
502 /* maxStorage :: The maximum number of elements in the */
503 /* storage area used for glyph hinting. */
504 /* */
505 /* maxFunctionDefs :: The maximum number of function */
506 /* definitions in the TrueType bytecode for */
507 /* this font. */
508 /* */
509 /* maxInstructionDefs :: The maximum number of instruction */
510 /* definitions in the TrueType bytecode for */
511 /* this font. */
512 /* */
513 /* maxStackElements :: The maximum number of stack elements used */
514 /* during bytecode interpretation. */
515 /* */
516 /* maxSizeOfInstructions :: The maximum number of TrueType opcodes */
517 /* used for glyph hinting. */
518 /* */
519 /* maxComponentElements :: The maximum number of simple (i.e., non- */
520 /* composite) glyphs in a composite glyph. */
521 /* */
522 /* maxComponentDepth :: The maximum nesting depth of composite */
523 /* glyphs. */
524 /* */
525 /* <Note> */
526 /* This structure is only used during font loading. */
527 /* */
528 typedef struct TT_MaxProfile_
529 {
530 FT_Fixed version;
531 FT_UShort numGlyphs;
532 FT_UShort maxPoints;
533 FT_UShort maxContours;
534 FT_UShort maxCompositePoints;
535 FT_UShort maxCompositeContours;
536 FT_UShort maxZones;
537 FT_UShort maxTwilightPoints;
538 FT_UShort maxStorage;
539 FT_UShort maxFunctionDefs;
540 FT_UShort maxInstructionDefs;
541 FT_UShort maxStackElements;
542 FT_UShort maxSizeOfInstructions;
543 FT_UShort maxComponentElements;
544 FT_UShort maxComponentDepth;
545
546 } TT_MaxProfile;
547
548
549 /*************************************************************************/
550 /* */
551 /* <Enum> */
552 /* FT_Sfnt_Tag */
553 /* */
554 /* <Description> */
555 /* An enumeration used to specify the index of an SFNT table. */
556 /* Used in the @FT_Get_Sfnt_Table API function. */
557 /* */
558 typedef enum FT_Sfnt_Tag_
559 {
560 ft_sfnt_head = 0, /* TT_Header */
561 ft_sfnt_maxp = 1, /* TT_MaxProfile */
562 ft_sfnt_os2 = 2, /* TT_OS2 */
563 ft_sfnt_hhea = 3, /* TT_HoriHeader */
564 ft_sfnt_vhea = 4, /* TT_VertHeader */
565 ft_sfnt_post = 5, /* TT_Postscript */
566 ft_sfnt_pclt = 6, /* TT_PCLT */
567
568 sfnt_max /* internal end mark */
569
570 } FT_Sfnt_Tag;
571
572 /* */
573
574
575 /*************************************************************************/
576 /* */
577 /* <Function> */
578 /* FT_Get_Sfnt_Table */
579 /* */
580 /* <Description> */
581 /* Return a pointer to a given SFNT table within a face. */
582 /* */
583 /* <Input> */
584 /* face :: A handle to the source. */
585 /* */
586 /* tag :: The index of the SFNT table. */
587 /* */
588 /* <Return> */
589 /* A type-less pointer to the table. This will be~0 in case of */
590 /* error, or if the corresponding table was not found *OR* loaded */
591 /* from the file. */
592 /* */
593 /* Use a typecast according to `tag' to access the structure */
594 /* elements. */
595 /* */
596 /* <Note> */
597 /* The table is owned by the face object and disappears with it. */
598 /* */
599 /* This function is only useful to access SFNT tables that are loaded */
600 /* by the sfnt, truetype, and opentype drivers. See @FT_Sfnt_Tag for */
601 /* a list. */
602 /* */
603 /* Here an example how to access the `vhea' table: */
604 /* */
605 /* { */
606 /* TT_VertHeader* vert_header; */
607 /* */
608 /* */
609 /* vert_header = */
610 /* (TT_VertHeader*)FT_Get_Sfnt_Table( face, ft_sfnt_vhea ); */
611 /* } */
612 /* */
613 FT_EXPORT( void* )
614 FT_Get_Sfnt_Table( FT_Face face,
615 FT_Sfnt_Tag tag );
616
617
618 /**************************************************************************
619 *
620 * @function:
621 * FT_Load_Sfnt_Table
622 *
623 * @description:
624 * Load any font table into client memory.
625 *
626 * @input:
627 * face ::
628 * A handle to the source face.
629 *
630 * tag ::
631 * The four-byte tag of the table to load. Use the value~0 if you want
632 * to access the whole font file. Otherwise, you can use one of the
633 * definitions found in the @FT_TRUETYPE_TAGS_H file, or forge a new
634 * one with @FT_MAKE_TAG.
635 *
636 * offset ::
637 * The starting offset in the table (or file if tag == 0).
638 *
639 * @output:
640 * buffer ::
641 * The target buffer address. The client must ensure that the memory
642 * array is big enough to hold the data.
643 *
644 * @inout:
645 * length ::
646 * If the `length' parameter is NULL, then try to load the whole table.
647 * Return an error code if it fails.
648 *
649 * Else, if `*length' is~0, exit immediately while returning the
650 * table's (or file) full size in it.
651 *
652 * Else the number of bytes to read from the table or file, from the
653 * starting offset.
654 *
655 * @return:
656 * FreeType error code. 0~means success.
657 *
658 * @note:
659 * If you need to determine the table's length you should first call this
660 * function with `*length' set to~0, as in the following example:
661 *
662 * {
663 * FT_ULong length = 0;
664 *
665 *
666 * error = FT_Load_Sfnt_Table( face, tag, 0, NULL, &length );
667 * if ( error ) { ... table does not exist ... }
668 *
669 * buffer = malloc( length );
670 * if ( buffer == NULL ) { ... not enough memory ... }
671 *
672 * error = FT_Load_Sfnt_Table( face, tag, 0, buffer, &length );
673 * if ( error ) { ... could not load table ... }
674 * }
675 */
676 FT_EXPORT( FT_Error )
677 FT_Load_Sfnt_Table( FT_Face face,
678 FT_ULong tag,
679 FT_Long offset,
680 FT_Byte* buffer,
681 FT_ULong* length );
682
683
684 /**************************************************************************
685 *
686 * @function:
687 * FT_Sfnt_Table_Info
688 *
689 * @description:
690 * Return information on an SFNT table.
691 *
692 * @input:
693 * face ::
694 * A handle to the source face.
695 *
696 * table_index ::
697 * The index of an SFNT table. The function returns
698 * FT_Err_Table_Missing for an invalid value.
699 *
700 * @inout:
701 * tag ::
702 * The name tag of the SFNT table. If the value is NULL, `table_index'
703 * is ignored, and `length' returns the number of SFNT tables in the
704 * font.
705 *
706 * @output:
707 * length ::
708 * The length of the SFNT table (or the number of SFNT tables, depending
709 * on `tag').
710 *
711 * @return:
712 * FreeType error code. 0~means success.
713 *
714 * @note:
715 * While parsing fonts, FreeType handles SFNT tables with length zero as
716 * missing.
717 *
718 */
719 FT_EXPORT( FT_Error )
720 FT_Sfnt_Table_Info( FT_Face face,
721 FT_UInt table_index,
722 FT_ULong *tag,
723 FT_ULong *length );
724
725
726 /*************************************************************************/
727 /* */
728 /* <Function> */
729 /* FT_Get_CMap_Language_ID */
730 /* */
731 /* <Description> */
732 /* Return TrueType/sfnt specific cmap language ID. Definitions of */
733 /* language ID values are in `freetype/ttnameid.h'. */
734 /* */
735 /* <Input> */
736 /* charmap :: */
737 /* The target charmap. */
738 /* */
739 /* <Return> */
740 /* The language ID of `charmap'. If `charmap' doesn't belong to a */
741 /* TrueType/sfnt face, just return~0 as the default value. */
742 /* */
743 /* For a format~14 cmap (to access Unicode IVS), the return value is */
744 /* 0xFFFFFFFF. */
745 /* */
746 FT_EXPORT( FT_ULong )
747 FT_Get_CMap_Language_ID( FT_CharMap charmap );
748
749
750 /*************************************************************************/
751 /* */
752 /* <Function> */
753 /* FT_Get_CMap_Format */
754 /* */
755 /* <Description> */
756 /* Return TrueType/sfnt specific cmap format. */
757 /* */
758 /* <Input> */
759 /* charmap :: */
760 /* The target charmap. */
761 /* */
762 /* <Return> */
763 /* The format of `charmap'. If `charmap' doesn't belong to a */
764 /* TrueType/sfnt face, return -1. */
765 /* */
766 FT_EXPORT( FT_Long )
767 FT_Get_CMap_Format( FT_CharMap charmap );
768
769 /* */
770
771
772 FT_END_HEADER
773
774 #endif /* __TTTABLES_H__ */
775
776
777 /* END */