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| 1 /*************************************************************************** | |
| 2 * | |
| 3 * Copyright (C) 1998-2013, International Business Machines | |
| 4 * Corporation and others. All Rights Reserved. | |
| 5 * | |
| 6 ************************************************************************/ | |
| 7 | |
| 8 | |
| 9 #ifndef __FONTOBJECT_H | |
| 10 #define __FONTOBJECT_H | |
| 11 | |
| 12 #include <stdio.h> | |
| 13 | |
| 14 #include "LETypes.h" | |
| 15 | |
| 16 | |
| 17 #ifndef ANY_NUMBER | |
| 18 #define ANY_NUMBER 1 | |
| 19 #endif | |
| 20 | |
| 21 struct DirectoryEntry | |
| 22 { | |
| 23 le_uint32 tag; | |
| 24 le_uint32 checksum; | |
| 25 le_uint32 offset; | |
| 26 le_uint32 length; | |
| 27 }; | |
| 28 | |
| 29 struct SFNTDirectory | |
| 30 { | |
| 31 le_uint32 scalerType; | |
| 32 le_uint16 numTables; | |
| 33 le_uint16 searchRange; | |
| 34 le_uint16 entrySelector; | |
| 35 le_uint16 rangeShift; | |
| 36 DirectoryEntry tableDirectory[ANY_NUMBER]; | |
| 37 }; | |
| 38 | |
| 39 | |
| 40 struct CMAPEncodingSubtableHeader | |
| 41 { | |
| 42 le_uint16 platformID; | |
| 43 le_uint16 platformSpecificID; | |
| 44 le_uint32 encodingOffset; | |
| 45 }; | |
| 46 | |
| 47 struct CMAPTable | |
| 48 { | |
| 49 le_uint16 version; | |
| 50 le_uint16 numberSubtables; | |
| 51 CMAPEncodingSubtableHeader encodingSubtableHeaders[ANY_NUMBER]; | |
| 52 }; | |
| 53 | |
| 54 struct CMAPEncodingSubtable | |
| 55 { | |
| 56 le_uint16 format; | |
| 57 le_uint16 length; | |
| 58 le_uint16 language; | |
| 59 }; | |
| 60 | |
| 61 struct CMAPFormat0Encoding : CMAPEncodingSubtable | |
| 62 { | |
| 63 le_uint8 glyphIndexArray[256]; | |
| 64 }; | |
| 65 | |
| 66 struct CMAPFormat2Subheader | |
| 67 { | |
| 68 le_uint16 firstCode; | |
| 69 le_uint16 entryCount; | |
| 70 le_int16 idDelta; | |
| 71 le_uint16 idRangeOffset; | |
| 72 }; | |
| 73 | |
| 74 struct CMAPFormat2Encoding : CMAPEncodingSubtable | |
| 75 { | |
| 76 le_uint16 subHeadKeys[256]; | |
| 77 CMAPFormat2Subheader subheaders[ANY_NUMBER]; | |
| 78 }; | |
| 79 | |
| 80 struct CMAPFormat4Encoding : CMAPEncodingSubtable | |
| 81 { | |
| 82 le_uint16 segCountX2; | |
| 83 le_uint16 searchRange; | |
| 84 le_uint16 entrySelector; | |
| 85 le_uint16 rangeShift; | |
| 86 le_uint16 endCodes[ANY_NUMBER]; | |
| 87 // le_uint16 reservedPad; | |
| 88 // le_uint16 startCodes[ANY_NUMBER]; | |
| 89 // le_uint16 idDelta[ANY_NUMBER]; | |
| 90 // le_uint16 idRangeOffset[ANY_NUMBER]; | |
| 91 // le_uint16 glyphIndexArray[ANY_NUMBER]; | |
| 92 }; | |
| 93 | |
| 94 struct CMAPFormat6Encoding : CMAPEncodingSubtable | |
| 95 { | |
| 96 le_uint16 firstCode; | |
| 97 le_uint16 entryCount; | |
| 98 le_uint16 glyphIndexArray[ANY_NUMBER]; | |
| 99 }; | |
| 100 | |
| 101 typedef le_int32 fixed; | |
| 102 | |
| 103 struct BigDate | |
| 104 { | |
| 105 le_uint32 bc; | |
| 106 le_uint32 ad; | |
| 107 }; | |
| 108 | |
| 109 struct HEADTable | |
| 110 { | |
| 111 fixed version; | |
| 112 fixed fontRevision; | |
| 113 le_uint32 checksumAdjustment; | |
| 114 le_uint32 magicNumber; | |
| 115 le_uint16 flags; | |
| 116 le_uint16 unitsPerEm; | |
| 117 BigDate created; | |
| 118 BigDate modified; | |
| 119 le_int16 xMin; | |
| 120 le_int16 yMin; | |
| 121 le_int16 xMax; | |
| 122 le_int16 yMax; | |
| 123 le_int16 lowestRecPPEM; | |
| 124 le_int16 fontDirectionHint; | |
| 125 le_int16 indexToLocFormat; | |
| 126 le_int16 glyphDataFormat; | |
| 127 }; | |
| 128 | |
| 129 struct MAXPTable | |
| 130 { | |
| 131 fixed version; | |
| 132 le_uint16 numGlyphs; | |
| 133 le_uint16 maxPoints; | |
| 134 le_uint16 maxContours; | |
| 135 le_uint16 maxComponentPoints; | |
| 136 le_uint16 maxComponentContours; | |
| 137 le_uint16 maxZones; | |
| 138 le_uint16 maxTwilightPoints; | |
| 139 le_uint16 maxStorage; | |
| 140 le_uint16 maxFunctionDefs; | |
| 141 le_uint16 maxInstructionDefs; | |
| 142 le_uint16 maxStackElements; | |
| 143 le_uint16 maxSizeOfInstructions; | |
| 144 le_uint16 maxComponentElements; | |
| 145 le_uint16 maxComponentDepth; | |
| 146 }; | |
| 147 | |
| 148 struct HHEATable | |
| 149 { | |
| 150 fixed version; | |
| 151 le_int16 ascent; | |
| 152 le_int16 descent; | |
| 153 le_int16 lineGap; | |
| 154 le_uint16 advanceWidthMax; | |
| 155 le_int16 minLeftSideBearing; | |
| 156 le_int16 minRightSideBearing; | |
| 157 le_int16 xMaxExtent; | |
| 158 le_int16 caretSlopeRise; | |
| 159 le_int16 caretSlopeRun; | |
| 160 le_int16 caretOffset; | |
| 161 le_int16 reserved1; | |
| 162 le_int16 reserved2; | |
| 163 le_int16 reserved3; | |
| 164 le_int16 reserved4; | |
| 165 le_int16 metricDataFormat; | |
| 166 le_uint16 numOfLongHorMetrics; | |
| 167 }; | |
| 168 | |
| 169 struct LongHorMetric | |
| 170 { | |
| 171 le_uint16 advanceWidth; | |
| 172 le_int16 leftSideBearing; | |
| 173 }; | |
| 174 | |
| 175 struct HMTXTable | |
| 176 { | |
| 177 LongHorMetric hMetrics[ANY_NUMBER]; // ANY_NUMBER = numOfLongHorMetri
cs from hhea table | |
| 178 // le_int16 leftSideBearing[ANY_NUMBER]; // ANY_NUMBER = numGlyphs - numOf
LongHorMetrics | |
| 179 }; | |
| 180 | |
| 181 class FontObject | |
| 182 { | |
| 183 public: | |
| 184 FontObject(char *fontName); | |
| 185 ~FontObject(); | |
| 186 | |
| 187 void *readTable(LETag tag, le_uint32 *length); | |
| 188 void deleteTable(void *table); | |
| 189 | |
| 190 LEGlyphID unicodeToGlyph(LEUnicode32 unicode); | |
| 191 | |
| 192 #if 0 | |
| 193 le_uint32 unicodesToGlyphs(LEUnicode *chars, le_uint32 nChars, LEGlyphID *gl
yphs, | |
| 194 le_uint32 *charIndices, le_bool rightToLeft); | |
| 195 #endif | |
| 196 | |
| 197 le_uint16 getUnitsPerEM(); | |
| 198 | |
| 199 le_uint16 getGlyphAdvance(LEGlyphID glyph); | |
| 200 | |
| 201 private: | |
| 202 FontObject(); | |
| 203 | |
| 204 DirectoryEntry *findTable(LETag tag); | |
| 205 CMAPEncodingSubtable *findCMAP(le_uint16 platformID, le_uint16 platformSpeci
ficID); | |
| 206 void initUnicodeCMAP(); | |
| 207 | |
| 208 SFNTDirectory *directory; | |
| 209 le_uint16 numTables; | |
| 210 le_uint16 searchRange; | |
| 211 le_uint16 entrySelector; | |
| 212 le_uint16 rangeShift; | |
| 213 | |
| 214 CMAPTable *cmapTable; | |
| 215 le_uint16 cmSegCount; | |
| 216 le_uint16 cmSearchRange; | |
| 217 le_uint16 cmEntrySelector; | |
| 218 le_uint16 cmRangeShift; | |
| 219 le_uint16 *cmEndCodes; | |
| 220 le_uint16 *cmStartCodes; | |
| 221 le_uint16 *cmIdDelta; | |
| 222 le_uint16 *cmIdRangeOffset; | |
| 223 | |
| 224 HEADTable *headTable; | |
| 225 | |
| 226 HMTXTable *hmtxTable; | |
| 227 le_uint16 numGlyphs; | |
| 228 le_uint16 numOfLongHorMetrics; | |
| 229 | |
| 230 FILE *file; | |
| 231 | |
| 232 }; | |
| 233 | |
| 234 #endif | |
| 235 | |
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Chromium Code Reviews
Issue 2435373002:
Delete source/test (Closed)
