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| 1 /* | |
| 2 * Copyright (C) 1998-2004 David Turner and Werner Lemberg | |
| 3 * Copyright (C) 2006 Behdad Esfahbod | |
| 4 * | |
| 5 * This is part of HarfBuzz, an OpenType Layout engine library. | |
| 6 * | |
| 7 * Permission is hereby granted, without written agreement and without | |
| 8 * license or royalty fees, to use, copy, modify, and distribute this | |
| 9 * software and its documentation for any purpose, provided that the | |
| 10 * above copyright notice and the following two paragraphs appear in | |
| 11 * all copies of this software. | |
| 12 * | |
| 13 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR | |
| 14 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES | |
| 15 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN | |
| 16 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH | |
| 17 * DAMAGE. | |
| 18 * | |
| 19 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, | |
| 20 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 21 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS | |
| 22 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO | |
| 23 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. | |
| 24 */ | |
| 25 | |
| 26 #ifndef HARFBUZZ_GDEF_PRIVATE_H | |
| 27 #define HARFBUZZ_GDEF_PRIVATE_H | |
| 28 | |
| 29 #include "harfbuzz-impl.h" | |
| 30 #include "harfbuzz-stream-private.h" | |
| 31 #include "harfbuzz-buffer-private.h" | |
| 32 #include "harfbuzz-gdef.h" | |
| 33 | |
| 34 HB_BEGIN_HEADER | |
| 35 | |
| 36 | |
| 37 #ifdef HB_USE_PACKED_STRUCTS | |
| 38 #pragma pack(push, 1) | |
| 39 #endif | |
| 40 | |
| 41 /* Attachment related structures */ | |
| 42 | |
| 43 struct HB_AttachPoint_ | |
| 44 { | |
| 45 HB_UShort* PointIndex; /* array of contour points */ | |
| 46 HB_UShort PointCount; /* size of the PointIndex array */ | |
| 47 }; | |
| 48 | |
| 49 /* Ligature Caret related structures */ | |
| 50 | |
| 51 struct HB_CaretValueFormat1_ | |
| 52 { | |
| 53 HB_Short Coordinate; /* x or y value (in design units) */ | |
| 54 }; | |
| 55 | |
| 56 typedef struct HB_CaretValueFormat1_ HB_CaretValueFormat1; | |
| 57 | |
| 58 | |
| 59 struct HB_CaretValueFormat2_ | |
| 60 { | |
| 61 HB_UShort CaretValuePoint; /* contour point index on glyph */ | |
| 62 }; | |
| 63 | |
| 64 typedef struct HB_CaretValueFormat2_ HB_CaretValueFormat2; | |
| 65 | |
| 66 | |
| 67 struct HB_CaretValueFormat3_ | |
| 68 { | |
| 69 HB_Device* Device; /* Device table for x or y value */ | |
| 70 HB_Short Coordinate; /* x or y value (in design units) */ | |
| 71 }; | |
| 72 | |
| 73 typedef struct HB_CaretValueFormat3_ HB_CaretValueFormat3; | |
| 74 | |
| 75 | |
| 76 #ifdef HB_SUPPORT_MULTIPLE_MASTER | |
| 77 struct HB_CaretValueFormat4_ | |
| 78 { | |
| 79 HB_UShort IdCaretValue; /* metric ID */ | |
| 80 }; | |
| 81 | |
| 82 typedef struct HB_CaretValueFormat4_ HB_CaretValueFormat4; | |
| 83 #endif | |
| 84 | |
| 85 | |
| 86 struct HB_CaretValue_ | |
| 87 { | |
| 88 union | |
| 89 { | |
| 90 HB_CaretValueFormat1 cvf1; | |
| 91 HB_CaretValueFormat2 cvf2; | |
| 92 HB_CaretValueFormat3 cvf3; | |
| 93 #ifdef HB_SUPPORT_MULTIPLE_MASTER | |
| 94 HB_CaretValueFormat4 cvf4; | |
| 95 #endif | |
| 96 } cvf; | |
| 97 | |
| 98 HB_Byte CaretValueFormat; /* 1, 2, 3, or 4 */ | |
| 99 }; | |
| 100 | |
| 101 typedef struct HB_CaretValue_ HB_CaretValue; | |
| 102 | |
| 103 | |
| 104 struct HB_LigGlyph_ | |
| 105 { | |
| 106 HB_CaretValue* CaretValue; /* array of caret values */ | |
| 107 HB_UShort CaretCount; /* number of caret values */ | |
| 108 HB_Bool loaded; | |
| 109 }; | |
| 110 | |
| 111 | |
| 112 HB_INTERNAL HB_Error | |
| 113 _HB_GDEF_Add_Glyph_Property( HB_GDEFHeader* gdef, | |
| 114 HB_UShort glyphID, | |
| 115 HB_UShort property ); | |
| 116 | |
| 117 HB_INTERNAL HB_Error | |
| 118 _HB_GDEF_Check_Property( HB_GDEFHeader* gdef, | |
| 119 HB_GlyphItem item, | |
| 120 HB_UShort flags, | |
| 121 HB_UShort* property ); | |
| 122 | |
| 123 HB_INTERNAL HB_Error | |
| 124 _HB_GDEF_LoadMarkAttachClassDef_From_LookupFlags( HB_GDEFHeader* gdef, | |
| 125 HB_Stream input, | |
| 126 HB_Lookup* lo, | |
| 127 HB_UShort num_lookups ); | |
| 128 | |
| 129 #ifdef HB_USE_PACKED_STRUCTS | |
| 130 #pragma pack(pop) | |
| 131 #endif | |
| 132 | |
| 133 HB_END_HEADER | |
| 134 | |
| 135 #endif /* HARFBUZZ_GDEF_PRIVATE_H */ | |
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