icuSources/samples/layout/sfnt.h

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