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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4973 | right-hear | 1 | /******************************************************************* |
| 2 | * |
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| 3 | * tttables.h 1.1 |
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| 4 | * |
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| 5 | * TrueType Tables structures and handling (specification). |
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| 6 | * |
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| 7 | * Copyright 1996-1999 by |
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| 8 | * David Turner, Robert Wilhelm, and Werner Lemberg. |
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| 9 | * |
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| 10 | * This file is part of the FreeType project, and may only be used |
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| 11 | * modified and distributed under the terms of the FreeType project |
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| 12 | * license, LICENSE.TXT. By continuing to use, modify, or distribute |
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| 13 | * this file you indicate that you have read the license and |
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| 14 | * understand and accept it fully. |
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| 15 | * |
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| 16 | ******************************************************************/ |
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| 17 | |||
| 18 | #ifndef TTTABLES_H |
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| 19 | #define TTTABLES_H |
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| 20 | |||
| 21 | #include "ttconfig.h" |
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| 22 | #include "tttypes.h" |
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| 23 | |||
| 24 | #ifdef __cplusplus |
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| 25 | extern "C" { |
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| 26 | #endif |
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| 27 | |||
| 28 | /***********************************************************************/ |
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| 29 | /* */ |
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| 30 | /* TrueType Table Types */ |
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| 31 | /* */ |
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| 32 | /***********************************************************************/ |
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| 33 | |||
| 34 | /* TrueType Collection Header */ |
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| 35 | |||
| 36 | struct TTTCHeader_ |
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| 37 | { |
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| 38 | ULong Tag; |
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| 39 | TT_Fixed version; |
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| 40 | ULong DirCount; |
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| 41 | PULong TableDirectory; |
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| 42 | }; |
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| 43 | |||
| 44 | typedef struct TTTCHeader_ TTTCHeader; |
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| 45 | typedef TTTCHeader* PTTCHeader; |
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| 46 | |||
| 47 | |||
| 48 | /* TrueType Table Directory type */ |
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| 49 | |||
| 50 | struct TTableDir_ |
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| 51 | { |
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| 52 | TT_Fixed version; /* should be 0x10000 */ |
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| 53 | UShort numTables; /* number of tables */ |
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| 54 | |||
| 55 | UShort searchRange; /* These parameters are only used */ |
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| 56 | UShort entrySelector; /* for a dichotomy search in the */ |
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| 57 | UShort rangeShift; /* directory. We ignore them. */ |
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| 58 | }; |
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| 59 | |||
| 60 | typedef struct TTableDir_ TTableDir; |
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| 61 | typedef TTableDir* PTableDir; |
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| 62 | |||
| 63 | |||
| 64 | /* The 'TableDir' is followed by 'numTables' TableDirEntries */ |
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| 65 | |||
| 66 | struct TTableDirEntry_ |
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| 67 | { |
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| 68 | ULong Tag; /* table type */ |
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| 69 | ULong CheckSum; /* table checksum */ |
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| 70 | ULong Offset; /* table file offset */ |
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| 71 | ULong Length; /* table length */ |
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| 72 | }; |
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| 73 | |||
| 74 | typedef struct TTableDirEntry_ TTableDirEntry; |
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| 75 | typedef TTableDirEntry* PTableDirEntry; |
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| 76 | |||
| 77 | |||
| 78 | /* 'cmap' tables */ |
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| 79 | |||
| 80 | struct TCMapDir_ |
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| 81 | { |
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| 82 | UShort tableVersionNumber; |
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| 83 | UShort numCMaps; |
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| 84 | }; |
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| 85 | |||
| 86 | typedef struct TCMapDir_ TCMapDir; |
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| 87 | typedef TCMapDir* PCMapDir; |
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| 88 | |||
| 89 | struct TCMapDirEntry_ |
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| 90 | { |
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| 91 | UShort platformID; |
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| 92 | UShort platformEncodingID; |
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| 93 | Long offset; |
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| 94 | }; |
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| 95 | |||
| 96 | typedef struct TCMapDirEntry_ TCMapDirEntry; |
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| 97 | typedef TCMapDirEntry* PCMapDirEntries; |
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| 98 | |||
| 99 | |||
| 100 | /* 'maxp' Maximum Profiles table */ |
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| 101 | |||
| 102 | struct TMaxProfile_ |
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| 103 | { |
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| 104 | TT_Fixed version; |
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| 105 | UShort numGlyphs, |
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| 106 | maxPoints, |
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| 107 | maxContours, |
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| 108 | maxCompositePoints, |
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| 109 | maxCompositeContours, |
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| 110 | maxZones, |
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| 111 | maxTwilightPoints, |
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| 112 | maxStorage, |
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| 113 | maxFunctionDefs, |
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| 114 | maxInstructionDefs, |
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| 115 | maxStackElements, |
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| 116 | maxSizeOfInstructions, |
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| 117 | maxComponentElements, |
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| 118 | maxComponentDepth; |
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| 119 | }; |
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| 120 | |||
| 121 | typedef struct TMaxProfile_ TMaxProfile; |
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| 122 | typedef TMaxProfile* PMaxProfile; |
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| 123 | |||
| 124 | |||
| 125 | /* table "gasp" */ |
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| 126 | |||
| 127 | #define GASP_GRIDFIT 0x01 |
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| 128 | #define GASP_DOGRAY 0x02 |
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| 129 | |||
| 130 | struct GaspRange_ |
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| 131 | { |
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| 132 | UShort maxPPEM; |
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| 133 | UShort gaspFlag; |
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| 134 | }; |
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| 135 | |||
| 136 | typedef struct GaspRange_ GaspRange; |
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| 137 | |||
| 138 | |||
| 139 | struct TGasp_ |
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| 140 | { |
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| 141 | UShort version; |
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| 142 | UShort numRanges; |
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| 143 | GaspRange* gaspRanges; |
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| 144 | }; |
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| 145 | |||
| 146 | typedef struct TGasp_ TGasp; |
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| 147 | |||
| 148 | |||
| 149 | /* table "head" - now defined in freetype.h */ |
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| 150 | /* table "hhea" - now defined in freetype.h */ |
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| 151 | |||
| 152 | |||
| 153 | /* tables "HMTX" and "VMTX" */ |
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| 154 | |||
| 155 | struct TLongMetrics_ |
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| 156 | { |
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| 157 | UShort advance; |
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| 158 | Short bearing; |
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| 159 | }; |
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| 160 | |||
| 161 | typedef struct TLongMetrics_ TLongMetrics, *PLongMetrics; |
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| 162 | |||
| 163 | typedef Short TShortMetrics, *PShortMetrics; |
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| 164 | |||
| 165 | /* 'loca' location table type */ |
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| 166 | |||
| 167 | struct TLoca_ |
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| 168 | { |
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| 169 | UShort Size; |
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| 170 | PStorage Table; |
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| 171 | }; |
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| 172 | |||
| 173 | typedef struct TLoca_ TLoca; |
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| 174 | |||
| 175 | |||
| 176 | /* table "name" */ |
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| 177 | |||
| 178 | struct TNameRec_ |
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| 179 | { |
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| 180 | UShort platformID; |
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| 181 | UShort encodingID; |
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| 182 | UShort languageID; |
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| 183 | UShort nameID; |
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| 184 | UShort stringLength; |
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| 185 | UShort stringOffset; |
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| 186 | |||
| 187 | /* this last field is not defined in the spec */ |
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| 188 | /* but used by the FreeType engine */ |
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| 189 | |||
| 190 | PByte string; |
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| 191 | }; |
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| 192 | |||
| 193 | typedef struct TNameRec_ TNameRec; |
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| 194 | |||
| 195 | |||
| 196 | struct TName_Table_ |
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| 197 | { |
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| 198 | UShort format; |
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| 199 | UShort numNameRecords; |
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| 200 | UShort storageOffset; |
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| 201 | TNameRec* names; |
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| 202 | PByte storage; |
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| 203 | }; |
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| 204 | |||
| 205 | typedef struct TName_Table_ TName_Table; |
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| 206 | |||
| 207 | |||
| 208 | #ifdef __cplusplus |
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| 209 | } |
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| 210 | #endif |
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| 211 | |||
| 212 | #endif /* TTTABLES_H */ |
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| 213 | |||
| 214 | |||
| 215 | /* END */ |