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| 1 /***************************************************************************/ | 1 /***************************************************************************/ |
| 2 /* */ | 2 /* */ |
| 3 /* freetype.h */ | 3 /* freetype.h */ |
| 4 /* */ | 4 /* */ |
| 5 /* FreeType high-level API and common types (specification only). */ | 5 /* FreeType high-level API and common types (specification only). */ |
| 6 /* */ | 6 /* */ |
| 7 /* Copyright 1996-2014 by */ | 7 /* Copyright 1996-2015 by */ |
| 8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ | 8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
| 9 /* */ | 9 /* */ |
| 10 /* This file is part of the FreeType project, and may only be used, */ | 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 */ | 11 /* modified, and distributed under the terms of the FreeType project */ |
| 12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ | 12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
| 13 /* this file you indicate that you have read the license and */ | 13 /* this file you indicate that you have read the license and */ |
| 14 /* understand and accept it fully. */ | 14 /* understand and accept it fully. */ |
| 15 /* */ | 15 /* */ |
| 16 /***************************************************************************/ | 16 /***************************************************************************/ |
| 17 | 17 |
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| 387 /* FT_Library */ | 387 /* FT_Library */ |
| 388 /* */ | 388 /* */ |
| 389 /* <Description> */ | 389 /* <Description> */ |
| 390 /* A handle to a FreeType library instance. Each `library' is */ | 390 /* A handle to a FreeType library instance. Each `library' is */ |
| 391 /* completely independent from the others; it is the `root' of a set */ | 391 /* completely independent from the others; it is the `root' of a set */ |
| 392 /* of objects like fonts, faces, sizes, etc. */ | 392 /* of objects like fonts, faces, sizes, etc. */ |
| 393 /* */ | 393 /* */ |
| 394 /* It also embeds a memory manager (see @FT_Memory), as well as a */ | 394 /* It also embeds a memory manager (see @FT_Memory), as well as a */ |
| 395 /* scan-line converter object (see @FT_Raster). */ | 395 /* scan-line converter object (see @FT_Raster). */ |
| 396 /* */ | 396 /* */ |
| 397 /* In multi-threaded applications, make sure that the same FT_Library */ | 397 /* In multi-threaded applications it is easiest to use one */ |
| 398 /* object or any of its children doesn't get accessed in parallel. */ | 398 /* `FT_Library' object per thread. In case this is too cumbersome, */ |
| 399 /* a single `FT_Library' object across threads is possible also */ |
| 400 /* (since FreeType version 2.5.6), as long as a mutex lock is used */ |
| 401 /* around @FT_New_Face and @FT_Done_Face. */ |
| 399 /* */ | 402 /* */ |
| 400 /* <Note> */ | 403 /* <Note> */ |
| 401 /* Library objects are normally created by @FT_Init_FreeType, and */ | 404 /* Library objects are normally created by @FT_Init_FreeType, and */ |
| 402 /* destroyed with @FT_Done_FreeType. If you need reference-counting */ | 405 /* destroyed with @FT_Done_FreeType. If you need reference-counting */ |
| 403 /* (cf. @FT_Reference_Library), use @FT_New_Library and */ | 406 /* (cf. @FT_Reference_Library), use @FT_New_Library and */ |
| 404 /* @FT_Done_Library. */ | 407 /* @FT_Done_Library. */ |
| 405 /* */ | 408 /* */ |
| 406 typedef struct FT_LibraryRec_ *FT_Library; | 409 typedef struct FT_LibraryRec_ *FT_Library; |
| 407 | 410 |
| 408 | 411 |
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| 470 /* */ | 473 /* */ |
| 471 /* <Note> */ | 474 /* <Note> */ |
| 472 /* Each face object also owns a single @FT_GlyphSlot object, as well */ | 475 /* Each face object also owns a single @FT_GlyphSlot object, as well */ |
| 473 /* as one or more @FT_Size objects. */ | 476 /* as one or more @FT_Size objects. */ |
| 474 /* */ | 477 /* */ |
| 475 /* Use @FT_New_Face or @FT_Open_Face to create a new face object from */ | 478 /* Use @FT_New_Face or @FT_Open_Face to create a new face object from */ |
| 476 /* a given filepathname or a custom input stream. */ | 479 /* a given filepathname or a custom input stream. */ |
| 477 /* */ | 480 /* */ |
| 478 /* Use @FT_Done_Face to destroy it (along with its slot and sizes). */ | 481 /* Use @FT_Done_Face to destroy it (along with its slot and sizes). */ |
| 479 /* */ | 482 /* */ |
| 483 /* An `FT_Face' object can only be safely used from one thread at a */ |
| 484 /* time. Similarly, creation and destruction of `FT_Face' with the */ |
| 485 /* same @FT_Library object can only be done from one thread at a */ |
| 486 /* time. On the other hand, functions like @FT_Load_Glyph and its */ |
| 487 /* siblings are thread-safe and do not need the lock to be held as */ |
| 488 /* long as the same `FT_Face' object is not used from multiple */ |
| 489 /* threads at the same time. */ |
| 490 /* */ |
| 480 /* <Also> */ | 491 /* <Also> */ |
| 481 /* See @FT_FaceRec for the publicly accessible fields of a given face */ | 492 /* See @FT_FaceRec for the publicly accessible fields of a given face */ |
| 482 /* object. */ | 493 /* object. */ |
| 483 /* */ | 494 /* */ |
| 484 typedef struct FT_FaceRec_* FT_Face; | 495 typedef struct FT_FaceRec_* FT_Face; |
| 485 | 496 |
| 486 | 497 |
| 487 /*************************************************************************/ | 498 /*************************************************************************/ |
| 488 /* */ | 499 /* */ |
| 489 /* <Type> */ | 500 /* <Type> */ |
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| 624 /* all versions of the Unicode repertoire, including ASCII and */ | 635 /* all versions of the Unicode repertoire, including ASCII and */ |
| 625 /* Latin-1. Most fonts include a Unicode charmap, but not all */ | 636 /* Latin-1. Most fonts include a Unicode charmap, but not all */ |
| 626 /* of them. */ | 637 /* of them. */ |
| 627 /* */ | 638 /* */ |
| 628 /* For example, if you want to access Unicode value U+1F028 (and */ | 639 /* For example, if you want to access Unicode value U+1F028 (and */ |
| 629 /* the font contains it), use value 0x1F028 as the input value for */ | 640 /* the font contains it), use value 0x1F028 as the input value for */ |
| 630 /* @FT_Get_Char_Index. */ | 641 /* @FT_Get_Char_Index. */ |
| 631 /* */ | 642 /* */ |
| 632 /* FT_ENCODING_MS_SYMBOL :: */ | 643 /* FT_ENCODING_MS_SYMBOL :: */ |
| 633 /* Corresponds to the Microsoft Symbol encoding, used to encode */ | 644 /* Corresponds to the Microsoft Symbol encoding, used to encode */ |
| 634 /* mathematical symbols in the 32..255 character code range. For */ | 645 /* mathematical symbols and wingdings. For more information, see */ |
| 635 /* more information, see */ | 646 /* `http://www.microsoft.com/typography/otspec/recom.htm', */ |
| 636 /* `http://www.kostis.net/charsets/symbol.htm'. */ | 647 /* `http://www.kostis.net/charsets/symbol.htm', and */ |
| 648 /* `http://www.kostis.net/charsets/wingding.htm'. */ |
| 649 /* */ |
| 650 /* This encoding uses character codes from the PUA (Private Unicode */ |
| 651 /* Area) in the range U+F020-U+F0FF. */ |
| 637 /* */ | 652 /* */ |
| 638 /* FT_ENCODING_SJIS :: */ | 653 /* FT_ENCODING_SJIS :: */ |
| 639 /* Corresponds to Japanese SJIS encoding. More info at */ | 654 /* Corresponds to Japanese SJIS encoding. More info at */ |
| 640 /* at `http://en.wikipedia.org/wiki/Shift_JIS'. */ | 655 /* at `http://en.wikipedia.org/wiki/Shift_JIS'. */ |
| 641 /* See note on multi-byte encodings below. */ | 656 /* See note on multi-byte encodings below. */ |
| 642 /* */ | 657 /* */ |
| 643 /* FT_ENCODING_GB2312 :: */ | 658 /* FT_ENCODING_GB2312 :: */ |
| 644 /* Corresponds to an encoding system for Simplified Chinese as used */ | 659 /* Corresponds to an encoding system for Simplified Chinese as used */ |
| 645 /* used in mainland China. */ | 660 /* used in mainland China. */ |
| 646 /* */ | 661 /* */ |
| 647 /* FT_ENCODING_BIG5 :: */ | 662 /* FT_ENCODING_BIG5 :: */ |
| 648 /* Corresponds to an encoding system for Traditional Chinese as */ | 663 /* Corresponds to an encoding system for Traditional Chinese as */ |
| 649 /* used in Taiwan and Hong Kong. */ | 664 /* used in Taiwan and Hong Kong. */ |
| 650 /* */ | 665 /* */ |
| 651 /* FT_ENCODING_WANSUNG :: */ | 666 /* FT_ENCODING_WANSUNG :: */ |
| 652 /* Corresponds to the Korean encoding system known as Wansung. */ | 667 /* Corresponds to the Korean encoding system known as Wansung. */ |
| 653 /* For more information see */ | 668 /* For more information see */ |
| 654 /* `http://msdn.microsoft.com/en-US/goglobal/cc305154'. */ | 669 /* `https://msdn.microsoft.com/en-US/goglobal/cc305154'. */ |
| 655 /* */ | 670 /* */ |
| 656 /* FT_ENCODING_JOHAB :: */ | 671 /* FT_ENCODING_JOHAB :: */ |
| 657 /* The Korean standard character set (KS~C 5601-1992), which */ | 672 /* The Korean standard character set (KS~C 5601-1992), which */ |
| 658 /* corresponds to MS Windows code page 1361. This character set */ | 673 /* corresponds to MS Windows code page 1361. This character set */ |
| 659 /* includes all possible Hangeul character combinations. */ | 674 /* includes all possible Hangeul character combinations. */ |
| 660 /* */ | 675 /* */ |
| 661 /* FT_ENCODING_ADOBE_LATIN_1 :: */ | 676 /* FT_ENCODING_ADOBE_LATIN_1 :: */ |
| 662 /* Corresponds to a Latin-1 encoding as defined in a Type~1 */ | 677 /* Corresponds to a Latin-1 encoding as defined in a Type~1 */ |
| 663 /* PostScript font. It is limited to 256 character codes. */ | 678 /* PostScript font. It is limited to 256 character codes. */ |
| 664 /* */ | 679 /* */ |
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| 854 /* */ | 869 /* */ |
| 855 /* <Description> */ | 870 /* <Description> */ |
| 856 /* FreeType root face class structure. A face object models a */ | 871 /* FreeType root face class structure. A face object models a */ |
| 857 /* typeface in a font file. */ | 872 /* typeface in a font file. */ |
| 858 /* */ | 873 /* */ |
| 859 /* <Fields> */ | 874 /* <Fields> */ |
| 860 /* num_faces :: The number of faces in the font file. Some */ | 875 /* num_faces :: The number of faces in the font file. Some */ |
| 861 /* font formats can have multiple faces in */ | 876 /* font formats can have multiple faces in */ |
| 862 /* a font file. */ | 877 /* a font file. */ |
| 863 /* */ | 878 /* */ |
| 864 /* face_index :: The index of the face in the font file. It */ | 879 /* face_index :: This field holds two different values. */ |
| 865 /* is set to~0 if there is only one face in */ | 880 /* Bits 0-15 are the index of the face in the */ |
| 881 /* font file (starting with value~0). They */ |
| 882 /* are set to~0 if there is only one face in */ |
| 866 /* the font file. */ | 883 /* the font file. */ |
| 867 /* */ | 884 /* */ |
| 885 /* Bits 16-30 are relevant to GX variation */ |
| 886 /* fonts only, holding the named instance */ |
| 887 /* index for the current face index (starting */ |
| 888 /* with value~1; value~0 indicates font access */ |
| 889 /* without GX variation data). For non-GX */ |
| 890 /* fonts, bits 16-30 are ignored. If we have */ |
| 891 /* the third named instance of face~4, say, */ |
| 892 /* `face_index' is set to 0x00030004. */ |
| 893 /* */ |
| 894 /* Bit 31 is always zero (this is, */ |
| 895 /* `face_index' is always a positive value). */ |
| 896 /* */ |
| 868 /* face_flags :: A set of bit flags that give important */ | 897 /* face_flags :: A set of bit flags that give important */ |
| 869 /* information about the face; see */ | 898 /* information about the face; see */ |
| 870 /* @FT_FACE_FLAG_XXX for the details. */ | 899 /* @FT_FACE_FLAG_XXX for the details. */ |
| 871 /* */ | 900 /* */ |
| 872 /* style_flags :: A set of bit flags indicating the style of */ | 901 /* style_flags :: The lower 16~bits contain a set of bit */ |
| 873 /* the face; see @FT_STYLE_FLAG_XXX for the */ | 902 /* flags indicating the style of the face; see */ |
| 874 /* details. */ | 903 /* @FT_STYLE_FLAG_XXX for the details. Bits */ |
| 904 /* 16-30 hold the number of named instances */ |
| 905 /* available for the current face if we have a */ |
| 906 /* GX variation (sub)font. Bit 31 is always */ |
| 907 /* zero (this is, `style_flags' is always a */ |
| 908 /* positive value). */ |
| 875 /* */ | 909 /* */ |
| 876 /* num_glyphs :: The number of glyphs in the face. If the */ | 910 /* num_glyphs :: The number of glyphs in the face. If the */ |
| 877 /* face is scalable and has sbits (see */ | 911 /* face is scalable and has sbits (see */ |
| 878 /* `num_fixed_sizes'), it is set to the number */ | 912 /* `num_fixed_sizes'), it is set to the number */ |
| 879 /* of outline glyphs. */ | 913 /* of outline glyphs. */ |
| 880 /* */ | 914 /* */ |
| 881 /* For CID-keyed fonts, this value gives the */ | 915 /* For CID-keyed fonts, this value gives the */ |
| 882 /* highest CID used in the font. */ | 916 /* highest CID used in the font. */ |
| 883 /* */ | 917 /* */ |
| 884 /* family_name :: The face's family name. This is an ASCII */ | 918 /* family_name :: The face's family name. This is an ASCII */ |
| 885 /* string, usually in English, that describes */ | 919 /* string, usually in English, that describes */ |
| 886 /* the typeface's family (like `Times New */ | 920 /* the typeface's family (like `Times New */ |
| 887 /* Roman', `Bodoni', `Garamond', etc). This */ | 921 /* Roman', `Bodoni', `Garamond', etc). This */ |
| 888 /* is a least common denominator used to list */ | 922 /* is a least common denominator used to list */ |
| 889 /* fonts. Some formats (TrueType & OpenType) */ | 923 /* fonts. Some formats (TrueType & OpenType) */ |
| 890 /* provide localized and Unicode versions of */ | 924 /* provide localized and Unicode versions of */ |
| 891 /* this string. Applications should use the */ | 925 /* this string. Applications should use the */ |
| 892 /* format specific interface to access them. */ | 926 /* format specific interface to access them. */ |
| 893 /* Can be NULL (e.g., in fonts embedded in a */ | 927 /* Can be NULL (e.g., in fonts embedded in a */ |
| 894 /* PDF file). */ | 928 /* PDF file). */ |
| 895 /* */ | 929 /* */ |
| 930 /* In case the font doesn't provide a specific */ |
| 931 /* family name entry, FreeType tries to */ |
| 932 /* synthesize one, deriving it from other name */ |
| 933 /* entries. */ |
| 934 /* */ |
| 896 /* style_name :: The face's style name. This is an ASCII */ | 935 /* style_name :: The face's style name. This is an ASCII */ |
| 897 /* string, usually in English, that describes */ | 936 /* string, usually in English, that describes */ |
| 898 /* the typeface's style (like `Italic', */ | 937 /* the typeface's style (like `Italic', */ |
| 899 /* `Bold', `Condensed', etc). Not all font */ | 938 /* `Bold', `Condensed', etc). Not all font */ |
| 900 /* formats provide a style name, so this field */ | 939 /* formats provide a style name, so this field */ |
| 901 /* is optional, and can be set to NULL. As */ | 940 /* is optional, and can be set to NULL. As */ |
| 902 /* for `family_name', some formats provide */ | 941 /* for `family_name', some formats provide */ |
| 903 /* localized and Unicode versions of this */ | 942 /* localized and Unicode versions of this */ |
| 904 /* string. Applications should use the format */ | 943 /* string. Applications should use the format */ |
| 905 /* specific interface to access them. */ | 944 /* specific interface to access them. */ |
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| 1133 /* way (using contiguous indices); the `CID-ness' isn't visible to */ | 1172 /* way (using contiguous indices); the `CID-ness' isn't visible to */ |
| 1134 /* the application. */ | 1173 /* the application. */ |
| 1135 /* */ | 1174 /* */ |
| 1136 /* FT_FACE_FLAG_TRICKY :: */ | 1175 /* FT_FACE_FLAG_TRICKY :: */ |
| 1137 /* Set if the font is `tricky', this is, it always needs the */ | 1176 /* Set if the font is `tricky', this is, it always needs the */ |
| 1138 /* font format's native hinting engine to get a reasonable result. */ | 1177 /* font format's native hinting engine to get a reasonable result. */ |
| 1139 /* A typical example is the Chinese font `mingli.ttf' that uses */ | 1178 /* A typical example is the Chinese font `mingli.ttf' that uses */ |
| 1140 /* TrueType bytecode instructions to move and scale all of its */ | 1179 /* TrueType bytecode instructions to move and scale all of its */ |
| 1141 /* subglyphs. */ | 1180 /* subglyphs. */ |
| 1142 /* */ | 1181 /* */ |
| 1143 /* It is not possible to autohint such fonts using */ | 1182 /* It is not possible to auto-hint such fonts using */ |
| 1144 /* @FT_LOAD_FORCE_AUTOHINT; it will also ignore */ | 1183 /* @FT_LOAD_FORCE_AUTOHINT; it will also ignore */ |
| 1145 /* @FT_LOAD_NO_HINTING. You have to set both @FT_LOAD_NO_HINTING */ | 1184 /* @FT_LOAD_NO_HINTING. You have to set both @FT_LOAD_NO_HINTING */ |
| 1146 /* and @FT_LOAD_NO_AUTOHINT to really disable hinting; however, you */ | 1185 /* and @FT_LOAD_NO_AUTOHINT to really disable hinting; however, you */ |
| 1147 /* probably never want this except for demonstration purposes. */ | 1186 /* probably never want this except for demonstration purposes. */ |
| 1148 /* */ | 1187 /* */ |
| 1149 /* Currently, there are about a dozen TrueType fonts in the list of */ | 1188 /* Currently, there are about a dozen TrueType fonts in the list of */ |
| 1150 /* tricky fonts; they are hard-coded in file `ttobjs.c'. */ | 1189 /* tricky fonts; they are hard-coded in file `ttobjs.c'. */ |
| 1151 /* */ | 1190 /* */ |
| 1152 /* FT_FACE_FLAG_COLOR :: */ | 1191 /* FT_FACE_FLAG_COLOR :: */ |
| 1153 /* Set if the font has color glyph tables. To access color glyphs */ | 1192 /* Set if the font has color glyph tables. To access color glyphs */ |
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| 1365 #define FT_HAS_COLOR( face ) \ | 1404 #define FT_HAS_COLOR( face ) \ |
| 1366 ( face->face_flags & FT_FACE_FLAG_COLOR ) | 1405 ( face->face_flags & FT_FACE_FLAG_COLOR ) |
| 1367 | 1406 |
| 1368 | 1407 |
| 1369 /*************************************************************************/ | 1408 /*************************************************************************/ |
| 1370 /* */ | 1409 /* */ |
| 1371 /* <Const> */ | 1410 /* <Const> */ |
| 1372 /* FT_STYLE_FLAG_XXX */ | 1411 /* FT_STYLE_FLAG_XXX */ |
| 1373 /* */ | 1412 /* */ |
| 1374 /* <Description> */ | 1413 /* <Description> */ |
| 1375 /* A list of bit-flags used to indicate the style of a given face. */ | 1414 /* A list of bit flags used to indicate the style of a given face. */ |
| 1376 /* These are used in the `style_flags' field of @FT_FaceRec. */ | 1415 /* These are used in the `style_flags' field of @FT_FaceRec. */ |
| 1377 /* */ | 1416 /* */ |
| 1378 /* <Values> */ | 1417 /* <Values> */ |
| 1379 /* FT_STYLE_FLAG_ITALIC :: */ | 1418 /* FT_STYLE_FLAG_ITALIC :: */ |
| 1380 /* Indicates that a given face style is italic or oblique. */ | 1419 /* Indicates that a given face style is italic or oblique. */ |
| 1381 /* */ | 1420 /* */ |
| 1382 /* FT_STYLE_FLAG_BOLD :: */ | 1421 /* FT_STYLE_FLAG_BOLD :: */ |
| 1383 /* Indicates that a given face is bold. */ | 1422 /* Indicates that a given face is bold. */ |
| 1384 /* */ | 1423 /* */ |
| 1385 /* <Note> */ | 1424 /* <Note> */ |
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| 1642 /* */ | 1681 /* */ |
| 1643 /* control_len :: This is the length in bytes of the control */ | 1682 /* control_len :: This is the length in bytes of the control */ |
| 1644 /* data. */ | 1683 /* data. */ |
| 1645 /* */ | 1684 /* */ |
| 1646 /* other :: Really wicked formats can use this pointer to */ | 1685 /* other :: Really wicked formats can use this pointer to */ |
| 1647 /* present their own glyph image to client */ | 1686 /* present their own glyph image to client */ |
| 1648 /* applications. Note that the application */ | 1687 /* applications. Note that the application */ |
| 1649 /* needs to know about the image format. */ | 1688 /* needs to know about the image format. */ |
| 1650 /* */ | 1689 /* */ |
| 1651 /* lsb_delta :: The difference between hinted and unhinted */ | 1690 /* lsb_delta :: The difference between hinted and unhinted */ |
| 1652 /* left side bearing while autohinting is */ | 1691 /* left side bearing while auto-hinting is */ |
| 1653 /* active. Zero otherwise. */ | 1692 /* active. Zero otherwise. */ |
| 1654 /* */ | 1693 /* */ |
| 1655 /* rsb_delta :: The difference between hinted and unhinted */ | 1694 /* rsb_delta :: The difference between hinted and unhinted */ |
| 1656 /* right side bearing while autohinting is */ | 1695 /* right side bearing while auto-hinting is */ |
| 1657 /* active. Zero otherwise. */ | 1696 /* active. Zero otherwise. */ |
| 1658 /* */ | 1697 /* */ |
| 1659 /* <Note> */ | 1698 /* <Note> */ |
| 1660 /* If @FT_Load_Glyph is called with default flags (see */ | 1699 /* If @FT_Load_Glyph is called with default flags (see */ |
| 1661 /* @FT_LOAD_DEFAULT) the glyph image is loaded in the glyph slot in */ | 1700 /* @FT_LOAD_DEFAULT) the glyph image is loaded in the glyph slot in */ |
| 1662 /* its native format (e.g., an outline glyph for TrueType and Type~1 */ | 1701 /* its native format (e.g., an outline glyph for TrueType and Type~1 */ |
| 1663 /* formats). */ | 1702 /* formats). */ |
| 1664 /* */ | 1703 /* */ |
| 1665 /* This image can later be converted into a bitmap by calling */ | 1704 /* This image can later be converted into a bitmap by calling */ |
| 1666 /* @FT_Render_Glyph. This function finds the current renderer for */ | 1705 /* @FT_Render_Glyph. This function finds the current renderer for */ |
| 1667 /* the native image's format, then invokes it. */ | 1706 /* the native image's format, then invokes it. */ |
| 1668 /* */ | 1707 /* */ |
| 1669 /* The renderer is in charge of transforming the native image through */ | 1708 /* The renderer is in charge of transforming the native image through */ |
| 1670 /* the slot's face transformation fields, then converting it into a */ | 1709 /* the slot's face transformation fields, then converting it into a */ |
| 1671 /* bitmap that is returned in `slot->bitmap'. */ | 1710 /* bitmap that is returned in `slot->bitmap'. */ |
| 1672 /* */ | 1711 /* */ |
| 1673 /* Note that `slot->bitmap_left' and `slot->bitmap_top' are also used */ | 1712 /* Note that `slot->bitmap_left' and `slot->bitmap_top' are also used */ |
| 1674 /* to specify the position of the bitmap relative to the current pen */ | 1713 /* to specify the position of the bitmap relative to the current pen */ |
| 1675 /* position (e.g., coordinates (0,0) on the baseline). Of course, */ | 1714 /* position (e.g., coordinates (0,0) on the baseline). Of course, */ |
| 1676 /* `slot->format' is also changed to @FT_GLYPH_FORMAT_BITMAP. */ | 1715 /* `slot->format' is also changed to @FT_GLYPH_FORMAT_BITMAP. */ |
| 1677 /* */ | 1716 /* */ |
| 1678 /* <Note> */ | 1717 /* <Note> */ |
| 1679 /* Here a small pseudo code fragment that shows how to use */ | 1718 /* Here is a small pseudo code fragment that shows how to use */ |
| 1680 /* `lsb_delta' and `rsb_delta': */ | 1719 /* `lsb_delta' and `rsb_delta': */ |
| 1681 /* */ | 1720 /* */ |
| 1682 /* { */ | 1721 /* { */ |
| 1683 /* FT_Pos origin_x = 0; */ | 1722 /* FT_Pos origin_x = 0; */ |
| 1684 /* FT_Pos prev_rsb_delta = 0; */ | 1723 /* FT_Pos prev_rsb_delta = 0; */ |
| 1685 /* */ | 1724 /* */ |
| 1686 /* */ | 1725 /* */ |
| 1687 /* for all glyphs do */ | 1726 /* for all glyphs do */ |
| 1688 /* <compute kern between current and previous glyph and add it to */ | 1727 /* <compute kern between current and previous glyph and add it to */ |
| 1689 /* `origin_x'> */ | 1728 /* `origin_x'> */ |
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| 1762 /* alibrary :: A handle to a new library object. */ | 1801 /* alibrary :: A handle to a new library object. */ |
| 1763 /* */ | 1802 /* */ |
| 1764 /* <Return> */ | 1803 /* <Return> */ |
| 1765 /* FreeType error code. 0~means success. */ | 1804 /* FreeType error code. 0~means success. */ |
| 1766 /* */ | 1805 /* */ |
| 1767 /* <Note> */ | 1806 /* <Note> */ |
| 1768 /* In case you want to provide your own memory allocating routines, */ | 1807 /* In case you want to provide your own memory allocating routines, */ |
| 1769 /* use @FT_New_Library instead, followed by a call to */ | 1808 /* use @FT_New_Library instead, followed by a call to */ |
| 1770 /* @FT_Add_Default_Modules (or a series of calls to @FT_Add_Module). */ | 1809 /* @FT_Add_Default_Modules (or a series of calls to @FT_Add_Module). */ |
| 1771 /* */ | 1810 /* */ |
| 1772 /* For multi-threading applications each thread should have its own */ | 1811 /* See the documentation of @FT_Library and @FT_Face for */ |
| 1773 /* FT_Library object. */ | 1812 /* multi-threading issues. */ |
| 1774 /* */ | 1813 /* */ |
| 1775 /* If you need reference-counting (cf. @FT_Reference_Library), use */ | 1814 /* If you need reference-counting (cf. @FT_Reference_Library), use */ |
| 1776 /* @FT_New_Library and @FT_Done_Library. */ | 1815 /* @FT_New_Library and @FT_Done_Library. */ |
| 1777 /* */ | 1816 /* */ |
| 1778 FT_EXPORT( FT_Error ) | 1817 FT_EXPORT( FT_Error ) |
| 1779 FT_Init_FreeType( FT_Library *alibrary ); | 1818 FT_Init_FreeType( FT_Library *alibrary ); |
| 1780 | 1819 |
| 1781 | 1820 |
| 1782 /*************************************************************************/ | 1821 /*************************************************************************/ |
| 1783 /* */ | 1822 /* */ |
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| 1797 FT_EXPORT( FT_Error ) | 1836 FT_EXPORT( FT_Error ) |
| 1798 FT_Done_FreeType( FT_Library library ); | 1837 FT_Done_FreeType( FT_Library library ); |
| 1799 | 1838 |
| 1800 | 1839 |
| 1801 /*************************************************************************/ | 1840 /*************************************************************************/ |
| 1802 /* */ | 1841 /* */ |
| 1803 /* <Enum> */ | 1842 /* <Enum> */ |
| 1804 /* FT_OPEN_XXX */ | 1843 /* FT_OPEN_XXX */ |
| 1805 /* */ | 1844 /* */ |
| 1806 /* <Description> */ | 1845 /* <Description> */ |
| 1807 /* A list of bit-field constants used within the `flags' field of the */ | 1846 /* A list of bit field constants used within the `flags' field of the */ |
| 1808 /* @FT_Open_Args structure. */ | 1847 /* @FT_Open_Args structure. */ |
| 1809 /* */ | 1848 /* */ |
| 1810 /* <Values> */ | 1849 /* <Values> */ |
| 1811 /* FT_OPEN_MEMORY :: This is a memory-based stream. */ | 1850 /* FT_OPEN_MEMORY :: This is a memory-based stream. */ |
| 1812 /* */ | 1851 /* */ |
| 1813 /* FT_OPEN_STREAM :: Copy the stream from the `stream' field. */ | 1852 /* FT_OPEN_STREAM :: Copy the stream from the `stream' field. */ |
| 1814 /* */ | 1853 /* */ |
| 1815 /* FT_OPEN_PATHNAME :: Create a new input stream from a C~path */ | 1854 /* FT_OPEN_PATHNAME :: Create a new input stream from a C~path */ |
| 1816 /* name. */ | 1855 /* name. */ |
| 1817 /* */ | 1856 /* */ |
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| 1944 /* */ | 1983 /* */ |
| 1945 /* <Description> */ | 1984 /* <Description> */ |
| 1946 /* This function calls @FT_Open_Face to open a font by its pathname. */ | 1985 /* This function calls @FT_Open_Face to open a font by its pathname. */ |
| 1947 /* */ | 1986 /* */ |
| 1948 /* <InOut> */ | 1987 /* <InOut> */ |
| 1949 /* library :: A handle to the library resource. */ | 1988 /* library :: A handle to the library resource. */ |
| 1950 /* */ | 1989 /* */ |
| 1951 /* <Input> */ | 1990 /* <Input> */ |
| 1952 /* pathname :: A path to the font file. */ | 1991 /* pathname :: A path to the font file. */ |
| 1953 /* */ | 1992 /* */ |
| 1954 /* face_index :: The index of the face within the font. The first */ | 1993 /* face_index :: See @FT_Open_Face for a detailed description of this */ |
| 1955 /* face has index~0. */ | 1994 /* parameter. */ |
| 1956 /* */ | 1995 /* */ |
| 1957 /* <Output> */ | 1996 /* <Output> */ |
| 1958 /* aface :: A handle to a new face object. If `face_index' is */ | 1997 /* aface :: A handle to a new face object. If `face_index' is */ |
| 1959 /* greater than or equal to zero, it must be non-NULL. */ | 1998 /* greater than or equal to zero, it must be non-NULL. */ |
| 1960 /* See @FT_Open_Face for more details. */ | |
| 1961 /* */ | 1999 /* */ |
| 1962 /* <Return> */ | 2000 /* <Return> */ |
| 1963 /* FreeType error code. 0~means success. */ | 2001 /* FreeType error code. 0~means success. */ |
| 1964 /* */ | 2002 /* */ |
| 1965 /* <Note> */ | 2003 /* <Note> */ |
| 1966 /* Use @FT_Done_Face to destroy the created @FT_Face object (along */ | 2004 /* Use @FT_Done_Face to destroy the created @FT_Face object (along */ |
| 1967 /* with its slot and sizes). */ | 2005 /* with its slot and sizes). */ |
| 1968 /* */ | 2006 /* */ |
| 1969 FT_EXPORT( FT_Error ) | 2007 FT_EXPORT( FT_Error ) |
| 1970 FT_New_Face( FT_Library library, | 2008 FT_New_Face( FT_Library library, |
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| 1983 /* loaded into memory. */ | 2021 /* loaded into memory. */ |
| 1984 /* */ | 2022 /* */ |
| 1985 /* <InOut> */ | 2023 /* <InOut> */ |
| 1986 /* library :: A handle to the library resource. */ | 2024 /* library :: A handle to the library resource. */ |
| 1987 /* */ | 2025 /* */ |
| 1988 /* <Input> */ | 2026 /* <Input> */ |
| 1989 /* file_base :: A pointer to the beginning of the font data. */ | 2027 /* file_base :: A pointer to the beginning of the font data. */ |
| 1990 /* */ | 2028 /* */ |
| 1991 /* file_size :: The size of the memory chunk used by the font data. */ | 2029 /* file_size :: The size of the memory chunk used by the font data. */ |
| 1992 /* */ | 2030 /* */ |
| 1993 /* face_index :: The index of the face within the font. The first */ | 2031 /* face_index :: See @FT_Open_Face for a detailed description of this */ |
| 1994 /* face has index~0. */ | 2032 /* parameter. */ |
| 1995 /* */ | 2033 /* */ |
| 1996 /* <Output> */ | 2034 /* <Output> */ |
| 1997 /* aface :: A handle to a new face object. If `face_index' is */ | 2035 /* aface :: A handle to a new face object. If `face_index' is */ |
| 1998 /* greater than or equal to zero, it must be non-NULL. */ | 2036 /* greater than or equal to zero, it must be non-NULL. */ |
| 1999 /* See @FT_Open_Face for more details. */ | |
| 2000 /* */ | 2037 /* */ |
| 2001 /* <Return> */ | 2038 /* <Return> */ |
| 2002 /* FreeType error code. 0~means success. */ | 2039 /* FreeType error code. 0~means success. */ |
| 2003 /* */ | 2040 /* */ |
| 2004 /* <Note> */ | 2041 /* <Note> */ |
| 2005 /* You must not deallocate the memory before calling @FT_Done_Face. */ | 2042 /* You must not deallocate the memory before calling @FT_Done_Face. */ |
| 2006 /* */ | 2043 /* */ |
| 2007 FT_EXPORT( FT_Error ) | 2044 FT_EXPORT( FT_Error ) |
| 2008 FT_New_Memory_Face( FT_Library library, | 2045 FT_New_Memory_Face( FT_Library library, |
| 2009 const FT_Byte* file_base, | 2046 const FT_Byte* file_base, |
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| 2021 /* Create a face object from a given resource described by */ | 2058 /* Create a face object from a given resource described by */ |
| 2022 /* @FT_Open_Args. */ | 2059 /* @FT_Open_Args. */ |
| 2023 /* */ | 2060 /* */ |
| 2024 /* <InOut> */ | 2061 /* <InOut> */ |
| 2025 /* library :: A handle to the library resource. */ | 2062 /* library :: A handle to the library resource. */ |
| 2026 /* */ | 2063 /* */ |
| 2027 /* <Input> */ | 2064 /* <Input> */ |
| 2028 /* args :: A pointer to an `FT_Open_Args' structure that must */ | 2065 /* args :: A pointer to an `FT_Open_Args' structure that must */ |
| 2029 /* be filled by the caller. */ | 2066 /* be filled by the caller. */ |
| 2030 /* */ | 2067 /* */ |
| 2031 /* face_index :: The index of the face within the font. The first */ | 2068 /* face_index :: This field holds two different values. Bits 0-15 */ |
| 2032 /* face has index~0. */ | 2069 /* are the index of the face in the font file (starting */ |
| 2070 /* with value~0). Set it to~0 if there is only one */ |
| 2071 /* face in the font file. */ |
| 2072 /* */ |
| 2073 /* Bits 16-30 are relevant to GX variation fonts only, */ |
| 2074 /* specifying the named instance index for the current */ |
| 2075 /* face index (starting with value~1; value~0 makes */ |
| 2076 /* FreeType ignore named instances). For non-GX fonts, */ |
| 2077 /* bits 16-30 are ignored. Assuming that you want to */ |
| 2078 /* access the third named instance in face~4, */ |
| 2079 /* `face_index' should be set to 0x00030004. If you */ |
| 2080 /* want to access face~4 without GX variation handling, */ |
| 2081 /* simply set `face_index' to value~4. */ |
| 2082 /* */ |
| 2083 /* FT_Open_Face and its siblings can be used to quickly */ |
| 2084 /* check whether the font format of a given font */ |
| 2085 /* resource is supported by FreeType. In general, if */ |
| 2086 /* the `face_index' argument is negative, the */ |
| 2087 /* function's return value is~0 if the font format is */ |
| 2088 /* recognized, or non-zero otherwise. The function */ |
| 2089 /* allocates a more or less empty face handle in */ |
| 2090 /* `*aface' (if `aface' isn't NULL); the only two */ |
| 2091 /* useful fields in this special case are */ |
| 2092 /* `face->num_faces' and `face->style_flags'. For any */ |
| 2093 /* negative value of `face_index', `face->num_faces' */ |
| 2094 /* gives the number of faces within the font file. For */ |
| 2095 /* the negative value `-(N+1)' (with `N' a 16-bit */ |
| 2096 /* value), bits 16-30 in `face->style_flags' give the */ |
| 2097 /* number of named instances in face `N' if we have a */ |
| 2098 /* GX variation font (or zero otherwise). After */ |
| 2099 /* examination, the returned @FT_Face structure should */ |
| 2100 /* be deallocated with a call to @FT_Done_Face. */ |
| 2033 /* */ | 2101 /* */ |
| 2034 /* <Output> */ | 2102 /* <Output> */ |
| 2035 /* aface :: A handle to a new face object. If `face_index' is */ | 2103 /* aface :: A handle to a new face object. If `face_index' is */ |
| 2036 /* greater than or equal to zero, it must be non-NULL. */ | 2104 /* greater than or equal to zero, it must be non-NULL. */ |
| 2037 /* See note below. */ | |
| 2038 /* */ | 2105 /* */ |
| 2039 /* <Return> */ | 2106 /* <Return> */ |
| 2040 /* FreeType error code. 0~means success. */ | 2107 /* FreeType error code. 0~means success. */ |
| 2041 /* */ | 2108 /* */ |
| 2042 /* <Note> */ | 2109 /* <Note> */ |
| 2043 /* Unlike FreeType 1.x, this function automatically creates a glyph */ | 2110 /* Unlike FreeType 1.x, this function automatically creates a glyph */ |
| 2044 /* slot for the face object that can be accessed directly through */ | 2111 /* slot for the face object that can be accessed directly through */ |
| 2045 /* `face->glyph'. */ | 2112 /* `face->glyph'. */ |
| 2046 /* */ | 2113 /* */ |
| 2047 /* FT_Open_Face can be used to quickly check whether the font */ | |
| 2048 /* format of a given font resource is supported by FreeType. If the */ | |
| 2049 /* `face_index' field is negative, the function's return value is~0 */ | |
| 2050 /* if the font format is recognized, or non-zero otherwise; */ | |
| 2051 /* the function returns a more or less empty face handle in `*aface' */ | |
| 2052 /* (if `aface' isn't NULL). The only useful field in this special */ | |
| 2053 /* case is `face->num_faces' that gives the number of faces within */ | |
| 2054 /* the font file. After examination, the returned @FT_Face structure */ | |
| 2055 /* should be deallocated with a call to @FT_Done_Face. */ | |
| 2056 /* */ | |
| 2057 /* Each new face object created with this function also owns a */ | 2114 /* Each new face object created with this function also owns a */ |
| 2058 /* default @FT_Size object, accessible as `face->size'. */ | 2115 /* default @FT_Size object, accessible as `face->size'. */ |
| 2059 /* */ | 2116 /* */ |
| 2060 /* One @FT_Library instance can have multiple face objects, this is, */ | 2117 /* One @FT_Library instance can have multiple face objects, this is, */ |
| 2061 /* @FT_Open_Face and its siblings can be called multiple times using */ | 2118 /* @FT_Open_Face and its siblings can be called multiple times using */ |
| 2062 /* the same `library' argument. */ | 2119 /* the same `library' argument. */ |
| 2063 /* */ | 2120 /* */ |
| 2064 /* See the discussion of reference counters in the description of */ | 2121 /* See the discussion of reference counters in the description of */ |
| 2065 /* @FT_Reference_Face. */ | 2122 /* @FT_Reference_Face. */ |
| 2066 /* */ | 2123 /* */ |
| 2124 /* To loop over all faces, use code similar to the following snippet */ |
| 2125 /* (omitting the error handling). */ |
| 2126 /* */ |
| 2127 /* { */ |
| 2128 /* ... */ |
| 2129 /* FT_Face face; */ |
| 2130 /* FT_Long i, num_faces; */ |
| 2131 /* */ |
| 2132 /* */ |
| 2133 /* error = FT_Open_Face( library, args, -1, &face ); */ |
| 2134 /* if ( error ) { ... } */ |
| 2135 /* */ |
| 2136 /* num_faces = face->num_faces; */ |
| 2137 /* FT_Done_Face( face ); */ |
| 2138 /* */ |
| 2139 /* for ( i = 0; i < num_faces; i++ ) */ |
| 2140 /* { */ |
| 2141 /* ... */ |
| 2142 /* error = FT_Open_Face( library, args, i, &face ); */ |
| 2143 /* ... */ |
| 2144 /* FT_Done_Face( face ); */ |
| 2145 /* ... */ |
| 2146 /* } */ |
| 2147 /* } */ |
| 2148 /* */ |
| 2149 /* To loop over all valid values for `face_index', use something */ |
| 2150 /* similar to the following snippet, again without error handling. */ |
| 2151 /* The code accesses all faces immediately (thus only a single call */ |
| 2152 /* of `FT_Open_Face' within the do-loop), with and without named */ |
| 2153 /* instances. */ |
| 2154 /* */ |
| 2155 /* { */ |
| 2156 /* ... */ |
| 2157 /* FT_Face face; */ |
| 2158 /* */ |
| 2159 /* FT_Long num_faces = 0; */ |
| 2160 /* FT_Long num_instances = 0; */ |
| 2161 /* */ |
| 2162 /* FT_Long face_idx = 0; */ |
| 2163 /* FT_Long instance_idx = 0; */ |
| 2164 /* */ |
| 2165 /* */ |
| 2166 /* do */ |
| 2167 /* { */ |
| 2168 /* FT_Long id = ( instance_idx << 16 ) + face_idx; */ |
| 2169 /* */ |
| 2170 /* */ |
| 2171 /* error = FT_Open_Face( library, args, id, &face ); */ |
| 2172 /* if ( error ) { ... } */ |
| 2173 /* */ |
| 2174 /* num_faces = face->num_faces; */ |
| 2175 /* num_instances = face->style_flags >> 16; */ |
| 2176 /* */ |
| 2177 /* ... */ |
| 2178 /* */ |
| 2179 /* FT_Done_Face( face ); */ |
| 2180 /* */ |
| 2181 /* if ( instance_idx < num_instances ) */ |
| 2182 /* instance_idx++; */ |
| 2183 /* else */ |
| 2184 /* { */ |
| 2185 /* face_idx++; */ |
| 2186 /* instance_idx = 0; */ |
| 2187 /* } */ |
| 2188 /* */ |
| 2189 /* } while ( face_idx < num_faces ) */ |
| 2190 /* } */ |
| 2191 /* */ |
| 2067 FT_EXPORT( FT_Error ) | 2192 FT_EXPORT( FT_Error ) |
| 2068 FT_Open_Face( FT_Library library, | 2193 FT_Open_Face( FT_Library library, |
| 2069 const FT_Open_Args* args, | 2194 const FT_Open_Args* args, |
| 2070 FT_Long face_index, | 2195 FT_Long face_index, |
| 2071 FT_Face *aface ); | 2196 FT_Face *aface ); |
| 2072 | 2197 |
| 2073 | 2198 |
| 2074 /*************************************************************************/ | 2199 /*************************************************************************/ |
| 2075 /* */ | 2200 /* */ |
| 2076 /* <Function> */ | 2201 /* <Function> */ |
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| 2494 FT_ULong char_code, | 2619 FT_ULong char_code, |
| 2495 FT_Int32 load_flags ); | 2620 FT_Int32 load_flags ); |
| 2496 | 2621 |
| 2497 | 2622 |
| 2498 /************************************************************************* | 2623 /************************************************************************* |
| 2499 * | 2624 * |
| 2500 * @enum: | 2625 * @enum: |
| 2501 * FT_LOAD_XXX | 2626 * FT_LOAD_XXX |
| 2502 * | 2627 * |
| 2503 * @description: | 2628 * @description: |
| 2504 * A list of bit-field constants used with @FT_Load_Glyph to indicate | 2629 * A list of bit field constants used with @FT_Load_Glyph to indicate |
| 2505 * what kind of operations to perform during glyph loading. | 2630 * what kind of operations to perform during glyph loading. |
| 2506 * | 2631 * |
| 2507 * @values: | 2632 * @values: |
| 2508 * FT_LOAD_DEFAULT :: | 2633 * FT_LOAD_DEFAULT :: |
| 2509 * Corresponding to~0, this value is used as the default glyph load | 2634 * Corresponding to~0, this value is used as the default glyph load |
| 2510 * operation. In this case, the following happens: | 2635 * operation. In this case, the following happens: |
| 2511 * | 2636 * |
| 2512 * 1. FreeType looks for a bitmap for the glyph corresponding to the | 2637 * 1. FreeType looks for a bitmap for the glyph corresponding to the |
| 2513 * face's current size. If one is found, the function returns. | 2638 * face's current size. If one is found, the function returns. |
| 2514 * The bitmap data can be accessed from the glyph slot (see note | 2639 * The bitmap data can be accessed from the glyph slot (see note |
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| 2611 * Disable auto-hinter. See also the note below. | 2736 * Disable auto-hinter. See also the note below. |
| 2612 * | 2737 * |
| 2613 * FT_LOAD_COLOR :: | 2738 * FT_LOAD_COLOR :: |
| 2614 * This flag is used to request loading of color embedded-bitmap | 2739 * This flag is used to request loading of color embedded-bitmap |
| 2615 * images. The resulting color bitmaps, if available, will have the | 2740 * images. The resulting color bitmaps, if available, will have the |
| 2616 * @FT_PIXEL_MODE_BGRA format. When the flag is not used and color | 2741 * @FT_PIXEL_MODE_BGRA format. When the flag is not used and color |
| 2617 * bitmaps are found, they will be converted to 256-level gray | 2742 * bitmaps are found, they will be converted to 256-level gray |
| 2618 * bitmaps transparently. Those bitmaps will be in the | 2743 * bitmaps transparently. Those bitmaps will be in the |
| 2619 * @FT_PIXEL_MODE_GRAY format. | 2744 * @FT_PIXEL_MODE_GRAY format. |
| 2620 * | 2745 * |
| 2746 * FT_LOAD_COMPUTE_METRICS :: |
| 2747 * This flag sets computing glyph metrics without the use of bundled |
| 2748 * metrics tables (for example, the `hdmx' table in TrueType fonts). |
| 2749 * Well-behaving fonts have optimized bundled metrics and these should |
| 2750 * be used. This flag is mainly used by font validating or font |
| 2751 * editing applications, which need to ignore, verify, or edit those |
| 2752 * tables. |
| 2753 * |
| 2754 * Currently, this flag is only implemented for TrueType fonts. |
| 2755 * |
| 2621 * FT_LOAD_CROP_BITMAP :: | 2756 * FT_LOAD_CROP_BITMAP :: |
| 2622 * Ignored. Deprecated. | 2757 * Ignored. Deprecated. |
| 2623 * | 2758 * |
| 2624 * FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH :: | 2759 * FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH :: |
| 2625 * Ignored. Deprecated. | 2760 * Ignored. Deprecated. |
| 2626 * | 2761 * |
| 2627 * @note: | 2762 * @note: |
| 2628 * By default, hinting is enabled and the font's native hinter (see | 2763 * By default, hinting is enabled and the font's native hinter (see |
| 2629 * @FT_FACE_FLAG_HINTER) is preferred over the auto-hinter. You can | 2764 * @FT_FACE_FLAG_HINTER) is preferred over the auto-hinter. You can |
| 2630 * disable hinting by setting @FT_LOAD_NO_HINTING or change the | 2765 * disable hinting by setting @FT_LOAD_NO_HINTING or change the |
| (...skipping 25 matching lines...) Expand all Loading... |
| 2656 #define FT_LOAD_CROP_BITMAP ( 1L << 6 ) | 2791 #define FT_LOAD_CROP_BITMAP ( 1L << 6 ) |
| 2657 #define FT_LOAD_PEDANTIC ( 1L << 7 ) | 2792 #define FT_LOAD_PEDANTIC ( 1L << 7 ) |
| 2658 #define FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ( 1L << 9 ) | 2793 #define FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ( 1L << 9 ) |
| 2659 #define FT_LOAD_NO_RECURSE ( 1L << 10 ) | 2794 #define FT_LOAD_NO_RECURSE ( 1L << 10 ) |
| 2660 #define FT_LOAD_IGNORE_TRANSFORM ( 1L << 11 ) | 2795 #define FT_LOAD_IGNORE_TRANSFORM ( 1L << 11 ) |
| 2661 #define FT_LOAD_MONOCHROME ( 1L << 12 ) | 2796 #define FT_LOAD_MONOCHROME ( 1L << 12 ) |
| 2662 #define FT_LOAD_LINEAR_DESIGN ( 1L << 13 ) | 2797 #define FT_LOAD_LINEAR_DESIGN ( 1L << 13 ) |
| 2663 #define FT_LOAD_NO_AUTOHINT ( 1L << 15 ) | 2798 #define FT_LOAD_NO_AUTOHINT ( 1L << 15 ) |
| 2664 /* Bits 16..19 are used by `FT_LOAD_TARGET_' */ | 2799 /* Bits 16..19 are used by `FT_LOAD_TARGET_' */ |
| 2665 #define FT_LOAD_COLOR ( 1L << 20 ) | 2800 #define FT_LOAD_COLOR ( 1L << 20 ) |
| 2801 #define FT_LOAD_COMPUTE_METRICS ( 1L << 21 ) |
| 2666 | 2802 |
| 2667 /* */ | 2803 /* */ |
| 2668 | 2804 |
| 2669 /* used internally only by certain font drivers! */ | 2805 /* used internally only by certain font drivers! */ |
| 2670 #define FT_LOAD_ADVANCE_ONLY ( 1L << 8 ) | 2806 #define FT_LOAD_ADVANCE_ONLY ( 1L << 8 ) |
| 2671 #define FT_LOAD_SBITS_ONLY ( 1L << 14 ) | 2807 #define FT_LOAD_SBITS_ONLY ( 1L << 14 ) |
| 2672 | 2808 |
| 2673 | 2809 |
| 2674 /************************************************************************** | 2810 /************************************************************************** |
| 2675 * | 2811 * |
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| 2900 /*************************************************************************/ | 3036 /*************************************************************************/ |
| 2901 /* */ | 3037 /* */ |
| 2902 /* <Enum> */ | 3038 /* <Enum> */ |
| 2903 /* FT_Kerning_Mode */ | 3039 /* FT_Kerning_Mode */ |
| 2904 /* */ | 3040 /* */ |
| 2905 /* <Description> */ | 3041 /* <Description> */ |
| 2906 /* An enumeration used to specify which kerning values to return in */ | 3042 /* An enumeration used to specify which kerning values to return in */ |
| 2907 /* @FT_Get_Kerning. */ | 3043 /* @FT_Get_Kerning. */ |
| 2908 /* */ | 3044 /* */ |
| 2909 /* <Values> */ | 3045 /* <Values> */ |
| 2910 /* FT_KERNING_DEFAULT :: Return scaled and grid-fitted kerning */ | 3046 /* FT_KERNING_DEFAULT :: Return grid-fitted kerning distances in */ |
| 2911 /* distances (value is~0). */ | 3047 /* pixels (value is~0). Whether they are */ |
| 3048 /* scaled depends on @FT_LOAD_NO_SCALE. */ |
| 2912 /* */ | 3049 /* */ |
| 2913 /* FT_KERNING_UNFITTED :: Return scaled but un-grid-fitted kerning */ | 3050 /* FT_KERNING_UNFITTED :: Return un-grid-fitted kerning distances in */ |
| 2914 /* distances. */ | 3051 /* 26.6 fractional pixels. Whether they are */ |
| 3052 /* scaled depends on @FT_LOAD_NO_SCALE. */ |
| 2915 /* */ | 3053 /* */ |
| 2916 /* FT_KERNING_UNSCALED :: Return the kerning vector in original font */ | 3054 /* FT_KERNING_UNSCALED :: Return the kerning vector in original font */ |
| 2917 /* units. */ | 3055 /* units. */ |
| 2918 /* */ | 3056 /* */ |
| 3057 /* <Note> */ |
| 3058 /* FT_KERNING_DEFAULT returns full pixel values; it also makes */ |
| 3059 /* FreeType heuristically scale down kerning distances at small ppem */ |
| 3060 /* values so that they don't become too big. */ |
| 3061 /* */ |
| 2919 typedef enum FT_Kerning_Mode_ | 3062 typedef enum FT_Kerning_Mode_ |
| 2920 { | 3063 { |
| 2921 FT_KERNING_DEFAULT = 0, | 3064 FT_KERNING_DEFAULT = 0, |
| 2922 FT_KERNING_UNFITTED, | 3065 FT_KERNING_UNFITTED, |
| 2923 FT_KERNING_UNSCALED | 3066 FT_KERNING_UNSCALED |
| 2924 | 3067 |
| 2925 } FT_Kerning_Mode; | 3068 } FT_Kerning_Mode; |
| 2926 | 3069 |
| 2927 | 3070 |
| 2928 /* these constants are deprecated; use the corresponding */ | 3071 /* these constants are deprecated; use the corresponding */ |
| (...skipping 16 matching lines...) Expand all Loading... |
| 2945 /* */ | 3088 /* */ |
| 2946 /* left_glyph :: The index of the left glyph in the kern pair. */ | 3089 /* left_glyph :: The index of the left glyph in the kern pair. */ |
| 2947 /* */ | 3090 /* */ |
| 2948 /* right_glyph :: The index of the right glyph in the kern pair. */ | 3091 /* right_glyph :: The index of the right glyph in the kern pair. */ |
| 2949 /* */ | 3092 /* */ |
| 2950 /* kern_mode :: See @FT_Kerning_Mode for more information. */ | 3093 /* kern_mode :: See @FT_Kerning_Mode for more information. */ |
| 2951 /* Determines the scale and dimension of the returned */ | 3094 /* Determines the scale and dimension of the returned */ |
| 2952 /* kerning vector. */ | 3095 /* kerning vector. */ |
| 2953 /* */ | 3096 /* */ |
| 2954 /* <Output> */ | 3097 /* <Output> */ |
| 2955 /* akerning :: The kerning vector. This is either in font units */ | 3098 /* akerning :: The kerning vector. This is either in font units, */ |
| 2956 /* or in pixels (26.6 format) for scalable formats, */ | 3099 /* fractional pixels (26.6 format), or pixels for */ |
| 2957 /* and in pixels for fixed-sizes formats. */ | 3100 /* scalable formats, and in pixels for fixed-sizes */ |
| 3101 /* formats. */ |
| 2958 /* */ | 3102 /* */ |
| 2959 /* <Return> */ | 3103 /* <Return> */ |
| 2960 /* FreeType error code. 0~means success. */ | 3104 /* FreeType error code. 0~means success. */ |
| 2961 /* */ | 3105 /* */ |
| 2962 /* <Note> */ | 3106 /* <Note> */ |
| 2963 /* Only horizontal layouts (left-to-right & right-to-left) are */ | 3107 /* Only horizontal layouts (left-to-right & right-to-left) are */ |
| 2964 /* supported by this method. Other layouts, or more sophisticated */ | 3108 /* supported by this method. Other layouts, or more sophisticated */ |
| 2965 /* kernings, are out of the scope of this API function -- they can be */ | 3109 /* kernings, are out of the scope of this API function -- they can be */ |
| 2966 /* implemented through format-specific interfaces. */ | 3110 /* implemented through format-specific interfaces. */ |
| 2967 /* */ | 3111 /* */ |
| (...skipping 264 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 3232 /* */ | 3376 /* */ |
| 3233 /* charcode = FT_Get_First_Char( face, &gindex ); */ | 3377 /* charcode = FT_Get_First_Char( face, &gindex ); */ |
| 3234 /* while ( gindex != 0 ) */ | 3378 /* while ( gindex != 0 ) */ |
| 3235 /* { */ | 3379 /* { */ |
| 3236 /* ... do something with (charcode,gindex) pair ... */ | 3380 /* ... do something with (charcode,gindex) pair ... */ |
| 3237 /* */ | 3381 /* */ |
| 3238 /* charcode = FT_Get_Next_Char( face, charcode, &gindex ); */ | 3382 /* charcode = FT_Get_Next_Char( face, charcode, &gindex ); */ |
| 3239 /* } */ | 3383 /* } */ |
| 3240 /* } */ | 3384 /* } */ |
| 3241 /* */ | 3385 /* */ |
| 3386 /* Be aware that character codes can have values up to 0xFFFFFFFF; */ |
| 3387 /* this might happen for non-Unicode or malformed cmaps. However, */ |
| 3388 /* even with regular Unicode encoding, so-called `last resort fonts' */ |
| 3389 /* (using SFNT cmap format 13, see function @FT_Get_CMap_Format) */ |
| 3390 /* normally have entries for all Unicode characters up to 0x1FFFFF, */ |
| 3391 /* which can cause *a lot* of iterations. */ |
| 3392 /* */ |
| 3242 /* Note that `*agindex' is set to~0 if the charmap is empty. The */ | 3393 /* Note that `*agindex' is set to~0 if the charmap is empty. The */ |
| 3243 /* result itself can be~0 in two cases: if the charmap is empty or */ | 3394 /* result itself can be~0 in two cases: if the charmap is empty or */ |
| 3244 /* if the value~0 is the first valid character code. */ | 3395 /* if the value~0 is the first valid character code. */ |
| 3245 /* */ | 3396 /* */ |
| 3246 FT_EXPORT( FT_ULong ) | 3397 FT_EXPORT( FT_ULong ) |
| 3247 FT_Get_First_Char( FT_Face face, | 3398 FT_Get_First_Char( FT_Face face, |
| 3248 FT_UInt *agindex ); | 3399 FT_UInt *agindex ); |
| 3249 | 3400 |
| 3250 | 3401 |
| 3251 /*************************************************************************/ | 3402 /*************************************************************************/ |
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| 3391 /* <Enum> */ | 3542 /* <Enum> */ |
| 3392 /* FT_FSTYPE_XXX */ | 3543 /* FT_FSTYPE_XXX */ |
| 3393 /* */ | 3544 /* */ |
| 3394 /* <Description> */ | 3545 /* <Description> */ |
| 3395 /* A list of bit flags used in the `fsType' field of the OS/2 table */ | 3546 /* A list of bit flags used in the `fsType' field of the OS/2 table */ |
| 3396 /* in a TrueType or OpenType font and the `FSType' entry in a */ | 3547 /* in a TrueType or OpenType font and the `FSType' entry in a */ |
| 3397 /* PostScript font. These bit flags are returned by */ | 3548 /* PostScript font. These bit flags are returned by */ |
| 3398 /* @FT_Get_FSType_Flags; they inform client applications of embedding */ | 3549 /* @FT_Get_FSType_Flags; they inform client applications of embedding */ |
| 3399 /* and subsetting restrictions associated with a font. */ | 3550 /* and subsetting restrictions associated with a font. */ |
| 3400 /* */ | 3551 /* */ |
| 3401 /* See http://www.adobe.com/devnet/acrobat/pdfs/FontPolicies.pdf for */ | 3552 /* See */ |
| 3402 /* more details. */ | 3553 /* http://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/pdfs/FontPolici
es.pdf */ |
| 3554 /* for more details. */ |
| 3403 /* */ | 3555 /* */ |
| 3404 /* <Values> */ | 3556 /* <Values> */ |
| 3405 /* FT_FSTYPE_INSTALLABLE_EMBEDDING :: */ | 3557 /* FT_FSTYPE_INSTALLABLE_EMBEDDING :: */ |
| 3406 /* Fonts with no fsType bit set may be embedded and permanently */ | 3558 /* Fonts with no fsType bit set may be embedded and permanently */ |
| 3407 /* installed on the remote system by an application. */ | 3559 /* installed on the remote system by an application. */ |
| 3408 /* */ | 3560 /* */ |
| 3409 /* FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING :: */ | 3561 /* FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING :: */ |
| 3410 /* Fonts that have only this bit set must not be modified, embedded */ | 3562 /* Fonts that have only this bit set must not be modified, embedded */ |
| 3411 /* or exchanged in any manner without first obtaining permission of */ | 3563 /* or exchanged in any manner without first obtaining permission of */ |
| 3412 /* the font software copyright owner. */ | 3564 /* the font software copyright owner. */ |
| (...skipping 13 matching lines...) Expand all Loading... |
| 3426 /* FT_FSTYPE_NO_SUBSETTING :: */ | 3578 /* FT_FSTYPE_NO_SUBSETTING :: */ |
| 3427 /* If this bit is set, the font may not be subsetted prior to */ | 3579 /* If this bit is set, the font may not be subsetted prior to */ |
| 3428 /* embedding. */ | 3580 /* embedding. */ |
| 3429 /* */ | 3581 /* */ |
| 3430 /* FT_FSTYPE_BITMAP_EMBEDDING_ONLY :: */ | 3582 /* FT_FSTYPE_BITMAP_EMBEDDING_ONLY :: */ |
| 3431 /* If this bit is set, only bitmaps contained in the font may be */ | 3583 /* If this bit is set, only bitmaps contained in the font may be */ |
| 3432 /* embedded; no outline data may be embedded. If there are no */ | 3584 /* embedded; no outline data may be embedded. If there are no */ |
| 3433 /* bitmaps available in the font, then the font is unembeddable. */ | 3585 /* bitmaps available in the font, then the font is unembeddable. */ |
| 3434 /* */ | 3586 /* */ |
| 3435 /* <Note> */ | 3587 /* <Note> */ |
| 3588 /* The flags are ORed together, thus more than a single value can be */ |
| 3589 /* returned. */ |
| 3590 /* */ |
| 3436 /* While the fsType flags can indicate that a font may be embedded, a */ | 3591 /* While the fsType flags can indicate that a font may be embedded, a */ |
| 3437 /* license with the font vendor may be separately required to use the */ | 3592 /* license with the font vendor may be separately required to use the */ |
| 3438 /* font in this way. */ | 3593 /* font in this way. */ |
| 3439 /* */ | 3594 /* */ |
| 3440 #define FT_FSTYPE_INSTALLABLE_EMBEDDING 0x0000 | 3595 #define FT_FSTYPE_INSTALLABLE_EMBEDDING 0x0000 |
| 3441 #define FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING 0x0002 | 3596 #define FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING 0x0002 |
| 3442 #define FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING 0x0004 | 3597 #define FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING 0x0004 |
| 3443 #define FT_FSTYPE_EDITABLE_EMBEDDING 0x0008 | 3598 #define FT_FSTYPE_EDITABLE_EMBEDDING 0x0008 |
| 3444 #define FT_FSTYPE_NO_SUBSETTING 0x0100 | 3599 #define FT_FSTYPE_NO_SUBSETTING 0x0100 |
| 3445 #define FT_FSTYPE_BITMAP_EMBEDDING_ONLY 0x0200 | 3600 #define FT_FSTYPE_BITMAP_EMBEDDING_ONLY 0x0200 |
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| 3811 /* <Function> */ | 3966 /* <Function> */ |
| 3812 /* FT_RoundFix */ | 3967 /* FT_RoundFix */ |
| 3813 /* */ | 3968 /* */ |
| 3814 /* <Description> */ | 3969 /* <Description> */ |
| 3815 /* A very simple function used to round a 16.16 fixed number. */ | 3970 /* A very simple function used to round a 16.16 fixed number. */ |
| 3816 /* */ | 3971 /* */ |
| 3817 /* <Input> */ | 3972 /* <Input> */ |
| 3818 /* a :: The number to be rounded. */ | 3973 /* a :: The number to be rounded. */ |
| 3819 /* */ | 3974 /* */ |
| 3820 /* <Return> */ | 3975 /* <Return> */ |
| 3821 /* The result of `(a + 0x8000) & -0x10000'. */ | 3976 /* `a' rounded to nearest 16.16 fixed integer, halfway cases away */ |
| 3977 /* from zero. */ |
| 3822 /* */ | 3978 /* */ |
| 3823 FT_EXPORT( FT_Fixed ) | 3979 FT_EXPORT( FT_Fixed ) |
| 3824 FT_RoundFix( FT_Fixed a ); | 3980 FT_RoundFix( FT_Fixed a ); |
| 3825 | 3981 |
| 3826 | 3982 |
| 3827 /*************************************************************************/ | 3983 /*************************************************************************/ |
| 3828 /* */ | 3984 /* */ |
| 3829 /* <Function> */ | 3985 /* <Function> */ |
| 3830 /* FT_CeilFix */ | 3986 /* FT_CeilFix */ |
| 3831 /* */ | 3987 /* */ |
| 3832 /* <Description> */ | 3988 /* <Description> */ |
| 3833 /* A very simple function used to compute the ceiling function of a */ | 3989 /* A very simple function used to compute the ceiling function of a */ |
| 3834 /* 16.16 fixed number. */ | 3990 /* 16.16 fixed number. */ |
| 3835 /* */ | 3991 /* */ |
| 3836 /* <Input> */ | 3992 /* <Input> */ |
| 3837 /* a :: The number for which the ceiling function is to be computed. */ | 3993 /* a :: The number for which the ceiling function is to be computed. */ |
| 3838 /* */ | 3994 /* */ |
| 3839 /* <Return> */ | 3995 /* <Return> */ |
| 3840 /* The result of `(a + 0x10000 - 1) & -0x10000'. */ | 3996 /* `a' rounded towards plus infinity. */ |
| 3841 /* */ | 3997 /* */ |
| 3842 FT_EXPORT( FT_Fixed ) | 3998 FT_EXPORT( FT_Fixed ) |
| 3843 FT_CeilFix( FT_Fixed a ); | 3999 FT_CeilFix( FT_Fixed a ); |
| 3844 | 4000 |
| 3845 | 4001 |
| 3846 /*************************************************************************/ | 4002 /*************************************************************************/ |
| 3847 /* */ | 4003 /* */ |
| 3848 /* <Function> */ | 4004 /* <Function> */ |
| 3849 /* FT_FloorFix */ | 4005 /* FT_FloorFix */ |
| 3850 /* */ | 4006 /* */ |
| 3851 /* <Description> */ | 4007 /* <Description> */ |
| 3852 /* A very simple function used to compute the floor function of a */ | 4008 /* A very simple function used to compute the floor function of a */ |
| 3853 /* 16.16 fixed number. */ | 4009 /* 16.16 fixed number. */ |
| 3854 /* */ | 4010 /* */ |
| 3855 /* <Input> */ | 4011 /* <Input> */ |
| 3856 /* a :: The number for which the floor function is to be computed. */ | 4012 /* a :: The number for which the floor function is to be computed. */ |
| 3857 /* */ | 4013 /* */ |
| 3858 /* <Return> */ | 4014 /* <Return> */ |
| 3859 /* The result of `a & -0x10000'. */ | 4015 /* `a' rounded towards minus infinity. */ |
| 3860 /* */ | 4016 /* */ |
| 3861 FT_EXPORT( FT_Fixed ) | 4017 FT_EXPORT( FT_Fixed ) |
| 3862 FT_FloorFix( FT_Fixed a ); | 4018 FT_FloorFix( FT_Fixed a ); |
| 3863 | 4019 |
| 3864 | 4020 |
| 3865 /*************************************************************************/ | 4021 /*************************************************************************/ |
| 3866 /* */ | 4022 /* */ |
| 3867 /* <Function> */ | 4023 /* <Function> */ |
| 3868 /* FT_Vector_Transform */ | 4024 /* FT_Vector_Transform */ |
| 3869 /* */ | 4025 /* */ |
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| 3929 * FREETYPE_MINOR :: The minor version number. | 4085 * FREETYPE_MINOR :: The minor version number. |
| 3930 * FREETYPE_PATCH :: The patch level. | 4086 * FREETYPE_PATCH :: The patch level. |
| 3931 * | 4087 * |
| 3932 * @note: | 4088 * @note: |
| 3933 * The version number of FreeType if built as a dynamic link library | 4089 * The version number of FreeType if built as a dynamic link library |
| 3934 * with the `libtool' package is _not_ controlled by these three | 4090 * with the `libtool' package is _not_ controlled by these three |
| 3935 * macros. | 4091 * macros. |
| 3936 * | 4092 * |
| 3937 */ | 4093 */ |
| 3938 #define FREETYPE_MAJOR 2 | 4094 #define FREETYPE_MAJOR 2 |
| 3939 #define FREETYPE_MINOR 5 | 4095 #define FREETYPE_MINOR 6 |
| 3940 #define FREETYPE_PATCH 4 | 4096 #define FREETYPE_PATCH 1 |
| 3941 | 4097 |
| 3942 | 4098 |
| 3943 /*************************************************************************/ | 4099 /*************************************************************************/ |
| 3944 /* */ | 4100 /* */ |
| 3945 /* <Function> */ | 4101 /* <Function> */ |
| 3946 /* FT_Library_Version */ | 4102 /* FT_Library_Version */ |
| 3947 /* */ | 4103 /* */ |
| 3948 /* <Description> */ | 4104 /* <Description> */ |
| 3949 /* Return the version of the FreeType library being used. This is */ | 4105 /* Return the version of the FreeType library being used. This is */ |
| 3950 /* useful when dynamically linking to the library, since one cannot */ | 4106 /* useful when dynamically linking to the library, since one cannot */ |
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| 4039 | 4195 |
| 4040 /* */ | 4196 /* */ |
| 4041 | 4197 |
| 4042 | 4198 |
| 4043 FT_END_HEADER | 4199 FT_END_HEADER |
| 4044 | 4200 |
| 4045 #endif /* __FREETYPE_H__ */ | 4201 #endif /* __FREETYPE_H__ */ |
| 4046 | 4202 |
| 4047 | 4203 |
| 4048 /* END */ | 4204 /* END */ |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1413673003:
Update bundled freetype to 2.6.1 (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master