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Issue 815103002: Update freetype to 2.5.4. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Adjust GYP and GN Created 6 years ago
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1 /***************************************************************************/ 1 /***************************************************************************/
2 /* */ 2 /* */
3 /* tttables.h */ 3 /* tttables.h */
4 /* */ 4 /* */
5 /* Basic SFNT/TrueType tables definitions and interface */ 5 /* Basic SFNT/TrueType tables definitions and interface */
6 /* (specification only). */ 6 /* (specification only). */
7 /* */ 7 /* */
8 /* Copyright 1996-2005, 2008-2012 by */ 8 /* Copyright 1996-2005, 2008-2014 by */
9 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ 9 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
10 /* */ 10 /* */
11 /* This file is part of the FreeType project, and may only be used, */ 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 */ 12 /* modified, and distributed under the terms of the FreeType project */
13 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 13 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
14 /* this file you indicate that you have read the license and */ 14 /* this file you indicate that you have read the license and */
15 /* understand and accept it fully. */ 15 /* understand and accept it fully. */
16 /* */ 16 /* */
17 /***************************************************************************/ 17 /***************************************************************************/
18 18
19 19
20 #ifndef __TTTABLES_H__ 20 #ifndef __TTTABLES_H__
21 #define __TTTABLES_H__ 21 #define __TTTABLES_H__
22 22
23 23
24 #include "../ft2build.h" 24 #include <ft2build.h>
25 #include "freetype.h" 25 #include FT_FREETYPE_H
26 26
27 #ifdef FREETYPE_H 27 #ifdef FREETYPE_H
28 #error "freetype.h of FreeType 1 has been loaded!" 28 #error "freetype.h of FreeType 1 has been loaded!"
29 #error "Please fix the directory search order for header files" 29 #error "Please fix the directory search order for header files"
30 #error "so that freetype.h of FreeType 2 is found first." 30 #error "so that freetype.h of FreeType 2 is found first."
31 #endif 31 #endif
32 32
33 33
34 FT_BEGIN_HEADER 34 FT_BEGIN_HEADER
35 35
36 /*************************************************************************/ 36 /*************************************************************************/
37 /* */ 37 /* */
38 /* <Section> */ 38 /* <Section> */
39 /* truetype_tables */ 39 /* truetype_tables */
40 /* */ 40 /* */
41 /* <Title> */ 41 /* <Title> */
42 /* TrueType Tables */ 42 /* TrueType Tables */
43 /* */ 43 /* */
44 /* <Abstract> */ 44 /* <Abstract> */
45 /* TrueType specific table types and functions. */ 45 /* TrueType specific table types and functions. */
46 /* */ 46 /* */
47 /* <Description> */ 47 /* <Description> */
48 /* This section contains the definition of TrueType-specific tables */ 48 /* This section contains the definition of TrueType-specific tables */
49 /* as well as some routines used to access and process them. */ 49 /* as well as some routines used to access and process them. */
50 /* */ 50 /* */
51 /* <Order> */
52 /* TT_Header */
53 /* TT_HoriHeader */
54 /* TT_VertHeader */
55 /* TT_OS2 */
56 /* TT_Postscript */
57 /* TT_PCLT */
58 /* TT_MaxProfile */
59 /* */
60 /* FT_Sfnt_Tag */
61 /* FT_Get_Sfnt_Table */
62 /* FT_Load_Sfnt_Table */
63 /* FT_Sfnt_Table_Info */
64 /* */
65 /* FT_Get_CMap_Language_ID */
66 /* FT_Get_CMap_Format */
67 /* */
68 /* FT_PARAM_TAG_UNPATENTED_HINTING */
69 /* */
51 /*************************************************************************/ 70 /*************************************************************************/
52 71
53 72
54 /*************************************************************************/ 73 /*************************************************************************/
55 /* */ 74 /* */
56 /* <Struct> */ 75 /* <Struct> */
57 /* TT_Header */ 76 /* TT_Header */
58 /* */ 77 /* */
59 /* <Description> */ 78 /* <Description> */
60 /* A structure used to model a TrueType font header table. All */ 79 /* A structure used to model a TrueType font header table. All */
(...skipping 102 matching lines...) Expand 10 before | Expand all | Expand 10 after
163 /* number_Of_HMetrics :: Number of HMetrics entries in the `hmtx' */ 182 /* number_Of_HMetrics :: Number of HMetrics entries in the `hmtx' */
164 /* table -- this value can be smaller than */ 183 /* table -- this value can be smaller than */
165 /* the total number of glyphs in the font. */ 184 /* the total number of glyphs in the font. */
166 /* */ 185 /* */
167 /* long_metrics :: A pointer into the `hmtx' table. */ 186 /* long_metrics :: A pointer into the `hmtx' table. */
168 /* */ 187 /* */
169 /* short_metrics :: A pointer into the `hmtx' table. */ 188 /* short_metrics :: A pointer into the `hmtx' table. */
170 /* */ 189 /* */
171 /* <Note> */ 190 /* <Note> */
172 /* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */ 191 /* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */
173 /* be identical except for the names of their fields which */ 192 /* be identical except for the names of their fields, */
174 /* are different. */ 193 /* which are different. */
175 /* */ 194 /* */
176 /* This ensures that a single function in the `ttload' */ 195 /* This ensures that a single function in the `ttload' */
177 /* module is able to read both the horizontal and vertical */ 196 /* module is able to read both the horizontal and vertical */
178 /* headers. */ 197 /* headers. */
179 /* */ 198 /* */
180 typedef struct TT_HoriHeader_ 199 typedef struct TT_HoriHeader_
181 { 200 {
182 FT_Fixed Version; 201 FT_Fixed Version;
183 FT_Short Ascender; 202 FT_Short Ascender;
184 FT_Short Descender; 203 FT_Short Descender;
(...skipping 104 matching lines...) Expand 10 before | Expand all | Expand 10 after
289 /* `vmtx' table -- this value can be */ 308 /* `vmtx' table -- this value can be */
290 /* smaller than the total number of glyphs */ 309 /* smaller than the total number of glyphs */
291 /* in the font. */ 310 /* in the font. */
292 /* */ 311 /* */
293 /* long_metrics :: A pointer into the `vmtx' table. */ 312 /* long_metrics :: A pointer into the `vmtx' table. */
294 /* */ 313 /* */
295 /* short_metrics :: A pointer into the `vmtx' table. */ 314 /* short_metrics :: A pointer into the `vmtx' table. */
296 /* */ 315 /* */
297 /* <Note> */ 316 /* <Note> */
298 /* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */ 317 /* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */
299 /* be identical except for the names of their fields which */ 318 /* be identical except for the names of their fields, */
300 /* are different. */ 319 /* which are different. */
301 /* */ 320 /* */
302 /* This ensures that a single function in the `ttload' */ 321 /* This ensures that a single function in the `ttload' */
303 /* module is able to read both the horizontal and vertical */ 322 /* module is able to read both the horizontal and vertical */
304 /* headers. */ 323 /* headers. */
305 /* */ 324 /* */
306 typedef struct TT_VertHeader_ 325 typedef struct TT_VertHeader_
307 { 326 {
308 FT_Fixed Version; 327 FT_Fixed Version;
309 FT_Short Ascender; 328 FT_Short Ascender;
310 FT_Short Descender; 329 FT_Short Descender;
(...skipping 22 matching lines...) Expand all
333 352
334 } TT_VertHeader; 353 } TT_VertHeader;
335 354
336 355
337 /*************************************************************************/ 356 /*************************************************************************/
338 /* */ 357 /* */
339 /* <Struct> */ 358 /* <Struct> */
340 /* TT_OS2 */ 359 /* TT_OS2 */
341 /* */ 360 /* */
342 /* <Description> */ 361 /* <Description> */
343 /* A structure used to model a TrueType OS/2 table. This is the long */ 362 /* A structure used to model a TrueType OS/2 table. All fields */
344 /* table version. All fields comply to the TrueType specification. */ 363 /* comply to the OpenType specification. */
345 /* */ 364 /* */
346 /* Note that we now support old Mac fonts which do not include an */ 365 /* Note that we now support old Mac fonts that do not include an OS/2 */
347 /* OS/2 table. In this case, the `version' field is always set to */ 366 /* table. In this case, the `version' field is always set to 0xFFFF. */
348 /* 0xFFFF. */
349 /* */ 367 /* */
350 typedef struct TT_OS2_ 368 typedef struct TT_OS2_
351 { 369 {
352 FT_UShort version; /* 0x0001 - more or 0xFFFF */ 370 FT_UShort version; /* 0x0001 - more or 0xFFFF */
353 FT_Short xAvgCharWidth; 371 FT_Short xAvgCharWidth;
354 FT_UShort usWeightClass; 372 FT_UShort usWeightClass;
355 FT_UShort usWidthClass; 373 FT_UShort usWidthClass;
356 FT_Short fsType; 374 FT_Short fsType;
357 FT_Short ySubscriptXSize; 375 FT_Short ySubscriptXSize;
358 FT_Short ySubscriptYSize; 376 FT_Short ySubscriptYSize;
(...skipping 18 matching lines...) Expand all
377 395
378 FT_UShort fsSelection; 396 FT_UShort fsSelection;
379 FT_UShort usFirstCharIndex; 397 FT_UShort usFirstCharIndex;
380 FT_UShort usLastCharIndex; 398 FT_UShort usLastCharIndex;
381 FT_Short sTypoAscender; 399 FT_Short sTypoAscender;
382 FT_Short sTypoDescender; 400 FT_Short sTypoDescender;
383 FT_Short sTypoLineGap; 401 FT_Short sTypoLineGap;
384 FT_UShort usWinAscent; 402 FT_UShort usWinAscent;
385 FT_UShort usWinDescent; 403 FT_UShort usWinDescent;
386 404
387 /* only version 1 tables: */ 405 /* only version 1 and higher: */
388 406
389 FT_ULong ulCodePageRange1; /* Bits 0-31 */ 407 FT_ULong ulCodePageRange1; /* Bits 0-31 */
390 FT_ULong ulCodePageRange2; /* Bits 32-63 */ 408 FT_ULong ulCodePageRange2; /* Bits 32-63 */
391 409
392 /* only version 2 tables: */ 410 /* only version 2 and higher: */
393 411
394 FT_Short sxHeight; 412 FT_Short sxHeight;
395 FT_Short sCapHeight; 413 FT_Short sCapHeight;
396 FT_UShort usDefaultChar; 414 FT_UShort usDefaultChar;
397 FT_UShort usBreakChar; 415 FT_UShort usBreakChar;
398 FT_UShort usMaxContext; 416 FT_UShort usMaxContext;
399 417
418 /* only version 5 and higher: */
419
420 FT_UShort usLowerOpticalPointSize; /* in twips (1/20th points) */
421 FT_UShort usUpperOpticalPointSize; /* in twips (1/20th points) */
422
400 } TT_OS2; 423 } TT_OS2;
401 424
402 425
403 /*************************************************************************/ 426 /*************************************************************************/
404 /* */ 427 /* */
405 /* <Struct> */ 428 /* <Struct> */
406 /* TT_Postscript */ 429 /* TT_Postscript */
407 /* */ 430 /* */
408 /* <Description> */ 431 /* <Description> */
409 /* A structure used to model a TrueType PostScript table. All fields */ 432 /* A structure used to model a TrueType PostScript table. All fields */
(...skipping 48 matching lines...) Expand 10 before | Expand all | Expand 10 after
458 481
459 } TT_PCLT; 482 } TT_PCLT;
460 483
461 484
462 /*************************************************************************/ 485 /*************************************************************************/
463 /* */ 486 /* */
464 /* <Struct> */ 487 /* <Struct> */
465 /* TT_MaxProfile */ 488 /* TT_MaxProfile */
466 /* */ 489 /* */
467 /* <Description> */ 490 /* <Description> */
468 /* The maximum profile is a table containing many max values which */ 491 /* The maximum profile is a table containing many max values, which */
469 /* can be used to pre-allocate arrays. This ensures that no memory */ 492 /* can be used to pre-allocate arrays. This ensures that no memory */
470 /* allocation occurs during a glyph load. */ 493 /* allocation occurs during a glyph load. */
471 /* */ 494 /* */
472 /* <Fields> */ 495 /* <Fields> */
473 /* version :: The version number. */ 496 /* version :: The version number. */
474 /* */ 497 /* */
475 /* numGlyphs :: The number of glyphs in this TrueType */ 498 /* numGlyphs :: The number of glyphs in this TrueType */
476 /* font. */ 499 /* font. */
477 /* */ 500 /* */
478 /* maxPoints :: The maximum number of points in a */ 501 /* maxPoints :: The maximum number of points in a */
(...skipping 69 matching lines...) Expand 10 before | Expand all | Expand 10 after
548 571
549 /*************************************************************************/ 572 /*************************************************************************/
550 /* */ 573 /* */
551 /* <Enum> */ 574 /* <Enum> */
552 /* FT_Sfnt_Tag */ 575 /* FT_Sfnt_Tag */
553 /* */ 576 /* */
554 /* <Description> */ 577 /* <Description> */
555 /* An enumeration used to specify the index of an SFNT table. */ 578 /* An enumeration used to specify the index of an SFNT table. */
556 /* Used in the @FT_Get_Sfnt_Table API function. */ 579 /* Used in the @FT_Get_Sfnt_Table API function. */
557 /* */ 580 /* */
581 /* <Values> */
582 /* FT_SFNT_HEAD :: To access the font's @TT_Header structure. */
583 /* */
584 /* FT_SFNT_MAXP :: To access the font's @TT_MaxProfile structure. */
585 /* */
586 /* FT_SFNT_OS2 :: To access the font's @TT_OS2 structure. */
587 /* */
588 /* FT_SFNT_HHEA :: To access the font's @TT_HoriHeader structure. */
589 /* */
590 /* FT_SFNT_VHEA :: To access the font's @TT_VertHeader struture. */
591 /* */
592 /* FT_SFNT_POST :: To access the font's @TT_Postscript structure. */
593 /* */
594 /* FT_SFNT_PCLT :: To access the font's @TT_PCLT structure. */
595 /* */
558 typedef enum FT_Sfnt_Tag_ 596 typedef enum FT_Sfnt_Tag_
559 { 597 {
560 ft_sfnt_head = 0, /* TT_Header */ 598 FT_SFNT_HEAD,
561 ft_sfnt_maxp = 1, /* TT_MaxProfile */ 599 FT_SFNT_MAXP,
562 ft_sfnt_os2 = 2, /* TT_OS2 */ 600 FT_SFNT_OS2,
563 ft_sfnt_hhea = 3, /* TT_HoriHeader */ 601 FT_SFNT_HHEA,
564 ft_sfnt_vhea = 4, /* TT_VertHeader */ 602 FT_SFNT_VHEA,
565 ft_sfnt_post = 5, /* TT_Postscript */ 603 FT_SFNT_POST,
566 ft_sfnt_pclt = 6, /* TT_PCLT */ 604 FT_SFNT_PCLT,
567 605
568 sfnt_max /* internal end mark */ 606 FT_SFNT_MAX
569 607
570 } FT_Sfnt_Tag; 608 } FT_Sfnt_Tag;
571 609
572 /* */ 610 /* these constants are deprecated; use the corresponding `FT_Sfnt_Tag' */
611 /* values instead */
612 #define ft_sfnt_head FT_SFNT_HEAD
613 #define ft_sfnt_maxp FT_SFNT_MAXP
614 #define ft_sfnt_os2 FT_SFNT_OS2
615 #define ft_sfnt_hhea FT_SFNT_HHEA
616 #define ft_sfnt_vhea FT_SFNT_VHEA
617 #define ft_sfnt_post FT_SFNT_POST
618 #define ft_sfnt_pclt FT_SFNT_PCLT
573 619
574 620
575 /*************************************************************************/ 621 /*************************************************************************/
576 /* */ 622 /* */
577 /* <Function> */ 623 /* <Function> */
578 /* FT_Get_Sfnt_Table */ 624 /* FT_Get_Sfnt_Table */
579 /* */ 625 /* */
580 /* <Description> */ 626 /* <Description> */
581 /* Return a pointer to a given SFNT table within a face. */ 627 /* Return a pointer to a given SFNT table within a face. */
582 /* */ 628 /* */
(...skipping 17 matching lines...) Expand all
600 /* by the sfnt, truetype, and opentype drivers. See @FT_Sfnt_Tag for */ 646 /* by the sfnt, truetype, and opentype drivers. See @FT_Sfnt_Tag for */
601 /* a list. */ 647 /* a list. */
602 /* */ 648 /* */
603 /* Here an example how to access the `vhea' table: */ 649 /* Here an example how to access the `vhea' table: */
604 /* */ 650 /* */
605 /* { */ 651 /* { */
606 /* TT_VertHeader* vert_header; */ 652 /* TT_VertHeader* vert_header; */
607 /* */ 653 /* */
608 /* */ 654 /* */
609 /* vert_header = */ 655 /* vert_header = */
610 /* (TT_VertHeader*)FT_Get_Sfnt_Table( face, ft_sfnt_vhea ); */ 656 /* (TT_VertHeader*)FT_Get_Sfnt_Table( face, FT_SFNT_VHEA ); */
611 /* } */ 657 /* } */
612 /* */ 658 /* */
613 FT_EXPORT( void* ) 659 FT_EXPORT( void* )
614 FT_Get_Sfnt_Table( FT_Face face, 660 FT_Get_Sfnt_Table( FT_Face face,
615 FT_Sfnt_Tag tag ); 661 FT_Sfnt_Tag tag );
616 662
617 663
618 /************************************************************************** 664 /**************************************************************************
619 * 665 *
620 * @function: 666 * @function:
(...skipping 44 matching lines...) Expand 10 before | Expand all | Expand 10 after
665 * 711 *
666 * error = FT_Load_Sfnt_Table( face, tag, 0, NULL, &length ); 712 * error = FT_Load_Sfnt_Table( face, tag, 0, NULL, &length );
667 * if ( error ) { ... table does not exist ... } 713 * if ( error ) { ... table does not exist ... }
668 * 714 *
669 * buffer = malloc( length ); 715 * buffer = malloc( length );
670 * if ( buffer == NULL ) { ... not enough memory ... } 716 * if ( buffer == NULL ) { ... not enough memory ... }
671 * 717 *
672 * error = FT_Load_Sfnt_Table( face, tag, 0, buffer, &length ); 718 * error = FT_Load_Sfnt_Table( face, tag, 0, buffer, &length );
673 * if ( error ) { ... could not load table ... } 719 * if ( error ) { ... could not load table ... }
674 * } 720 * }
721 *
722 * Note that structures like @TT_Header or @TT_OS2 can't be used with
723 * this function; they are limited to @FT_Get_Sfnt_Table. Reason is that
724 * those structures depend on the processor architecture, with varying
725 * size (e.g. 32bit vs. 64bit) or order (big endian vs. little endian).
726 *
675 */ 727 */
676 FT_EXPORT( FT_Error ) 728 FT_EXPORT( FT_Error )
677 FT_Load_Sfnt_Table( FT_Face face, 729 FT_Load_Sfnt_Table( FT_Face face,
678 FT_ULong tag, 730 FT_ULong tag,
679 FT_Long offset, 731 FT_Long offset,
680 FT_Byte* buffer, 732 FT_Byte* buffer,
681 FT_ULong* length ); 733 FT_ULong* length );
682 734
683 735
684 /************************************************************************** 736 /**************************************************************************
(...skipping 38 matching lines...) Expand 10 before | Expand all | Expand 10 after
723 FT_ULong *length ); 775 FT_ULong *length );
724 776
725 777
726 /*************************************************************************/ 778 /*************************************************************************/
727 /* */ 779 /* */
728 /* <Function> */ 780 /* <Function> */
729 /* FT_Get_CMap_Language_ID */ 781 /* FT_Get_CMap_Language_ID */
730 /* */ 782 /* */
731 /* <Description> */ 783 /* <Description> */
732 /* Return TrueType/sfnt specific cmap language ID. Definitions of */ 784 /* Return TrueType/sfnt specific cmap language ID. Definitions of */
733 /* language ID values are in `freetype/ttnameid.h'. */ 785 /* language ID values are in `ttnameid.h'. */
734 /* */ 786 /* */
735 /* <Input> */ 787 /* <Input> */
736 /* charmap :: */ 788 /* charmap :: */
737 /* The target charmap. */ 789 /* The target charmap. */
738 /* */ 790 /* */
739 /* <Return> */ 791 /* <Return> */
740 /* The language ID of `charmap'. If `charmap' doesn't belong to a */ 792 /* The language ID of `charmap'. If `charmap' doesn't belong to a */
741 /* TrueType/sfnt face, just return~0 as the default value. */ 793 /* TrueType/sfnt face, just return~0 as the default value. */
742 /* */ 794 /* */
743 /* For a format~14 cmap (to access Unicode IVS), the return value is */ 795 /* For a format~14 cmap (to access Unicode IVS), the return value is */
(...skipping 24 matching lines...) Expand all
768 820
769 /* */ 821 /* */
770 822
771 823
772 FT_END_HEADER 824 FT_END_HEADER
773 825
774 #endif /* __TTTABLES_H__ */ 826 #endif /* __TTTABLES_H__ */
775 827
776 828
777 /* END */ 829 /* END */
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