1 /* 2 ****************************************************************************** 3 * 4 * 2016 and later: Unicode, Inc. and others. 5 * License & terms of use: http://www.unicode.org/copyright.html#License 6 * 7 ****************************************************************************** 8 ****************************************************************************** * 9 * 10 * Copyright (C) 1999-2001, International Business Machines 11 * Corporation and others. All Rights Reserved. 12 * 13 ****************************************************************************** * 14 * file name: sfnt.h 15 * 16 * created on: ??/??/2001 17 * created by: Eric R. Mader 18 */ 19 20 #ifndef __SFNT_H 21 #define __SFNT_H 22 23 #include "LETypes.h" 24 25 26 #ifndef ANY_NUMBER 27 #define ANY_NUMBER 1 28 #endif 29 30 struct DirectoryEntry 31 { 32 le_uint32 tag; 33 le_uint32 checksum; 34 le_uint32 offset; 35 le_uint32 length; 36 }; 37 38 struct SFNTDirectory 39 { 40 le_uint32 scalerType; 41 le_uint16 numTables; 42 le_uint16 searchRange; 43 le_uint16 entrySelector; 44 le_uint16 rangeShift; 45 DirectoryEntry tableDirectory[ANY_NUMBER]; 46 }; 47 48 49 struct CMAPEncodingSubtableHeader 50 { 51 le_uint16 platformID; 52 le_uint16 platformSpecificID; 53 le_uint32 encodingOffset; 54 }; 55 56 struct CMAPTable 57 { 58 le_uint16 version; 59 le_uint16 numberSubtables; 60 CMAPEncodingSubtableHeader encodingSubtableHeaders[ANY_NUMBER]; 61 }; 62 63 struct CMAPEncodingSubtable 64 { 65 le_uint16 format; 66 le_uint16 length; 67 le_uint16 language; 68 }; 69 70 struct CMAPFormat0Encoding : CMAPEncodingSubtable 71 { 72 le_uint8 glyphIndexArray[256]; 73 }; 74 75 struct CMAPFormat2Subheader 76 { 77 le_uint16 firstCode; 78 le_uint16 entryCount; 79 le_int16 idDelta; 80 le_uint16 idRangeOffset; 81 }; 82 83 struct CMAPFormat2Encoding : CMAPEncodingSubtable 84 { 85 le_uint16 subHeadKeys[256]; 86 CMAPFormat2Subheader subheaders[ANY_NUMBER]; 87 }; 88 89 struct CMAPFormat4Encoding : CMAPEncodingSubtable 90 { 91 le_uint16 segCountX2; 92 le_uint16 searchRange; 93 le_uint16 entrySelector; 94 le_uint16 rangeShift; 95 le_uint16 endCodes[ANY_NUMBER]; 96 // le_uint16 reservedPad; 97 // le_uint16 startCodes[ANY_NUMBER]; 98 // le_uint16 idDelta[ANY_NUMBER]; 99 // le_uint16 idRangeOffset[ANY_NUMBER]; 100 // le_uint16 glyphIndexArray[ANY_NUMBER]; 101 }; 102 103 struct CMAPFormat6Encoding : CMAPEncodingSubtable 104 { 105 le_uint16 firstCode; 106 le_uint16 entryCount; 107 le_uint16 glyphIndexArray[ANY_NUMBER]; 108 }; 109 110 struct CMAPEncodingSubtable32 111 { 112 le_uint32 format; 113 le_uint32 length; 114 le_uint32 language; 115 }; 116 117 struct CMAPGroup 118 { 119 le_uint32 startCharCode; 120 le_uint32 endCharCode; 121 le_uint32 startGlyphCode; 122 }; 123 124 struct CMAPFormat8Encoding : CMAPEncodingSubtable32 125 { 126 le_uint32 is32[65536/32]; 127 le_uint32 nGroups; 128 CMAPGroup groups[ANY_NUMBER]; 129 }; 130 131 struct CMAPFormat10Encoding : CMAPEncodingSubtable32 132 { 133 le_uint32 startCharCode; 134 le_uint32 numCharCodes; 135 le_uint16 glyphs[ANY_NUMBER]; 136 }; 137 138 struct CMAPFormat12Encoding : CMAPEncodingSubtable32 139 { 140 le_uint32 nGroups; 141 CMAPGroup groups[ANY_NUMBER]; 142 }; 143 144 typedef le_int32 fixed; 145 146 struct BigDate 147 { 148 le_uint32 bc; 149 le_uint32 ad; 150 }; 151 152 struct HEADTable 153 { 154 fixed version; 155 fixed fontRevision; 156 le_uint32 checksumAdjustment; 157 le_uint32 magicNumber; 158 le_uint16 flags; 159 le_uint16 unitsPerEm; 160 BigDate created; 161 BigDate modified; 162 le_int16 xMin; 163 le_int16 yMin; 164 le_int16 xMax; 165 le_int16 yMax; 166 le_int16 lowestRecPPEM; 167 le_int16 fontDirectionHint; 168 le_int16 indexToLocFormat; 169 le_int16 glyphDataFormat; 170 }; 171 172 struct MAXPTable 173 { 174 fixed version; 175 le_uint16 numGlyphs; 176 le_uint16 maxPoints; 177 le_uint16 maxContours; 178 le_uint16 maxComponentPoints; 179 le_uint16 maxComponentContours; 180 le_uint16 maxZones; 181 le_uint16 maxTwilightPoints; 182 le_uint16 maxStorage; 183 le_uint16 maxFunctionDefs; 184 le_uint16 maxInstructionDefs; 185 le_uint16 maxStackElements; 186 le_uint16 maxSizeOfInstructions; 187 le_uint16 maxComponentElements; 188 le_uint16 maxComponentDepth; 189 }; 190 191 struct HHEATable 192 { 193 fixed version; 194 le_int16 ascent; 195 le_int16 descent; 196 le_int16 lineGap; 197 le_uint16 advanceWidthMax; 198 le_int16 minLeftSideBearing; 199 le_int16 minRightSideBearing; 200 le_int16 xMaxExtent; 201 le_int16 caretSlopeRise; 202 le_int16 caretSlopeRun; 203 le_int16 caretOffset; 204 le_int16 reserved1; 205 le_int16 reserved2; 206 le_int16 reserved3; 207 le_int16 reserved4; 208 le_int16 metricDataFormat; 209 le_uint16 numOfLongHorMetrics; 210 }; 211 212 struct LongHorMetric 213 { 214 le_uint16 advanceWidth; 215 le_int16 leftSideBearing; 216 }; 217 218 struct HMTXTable 219 { 220 LongHorMetric hMetrics[ANY_NUMBER]; // ANY_NUMBER = numOfLongHorMetrics from hhea table 221 // le_int16 leftSideBearing[ANY_NUMBER]; // ANY_NUMBER = numGlyphs - numOfLongHorMetrics 222 }; 223 224 #endif 225 226
