1 | /* |
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2 | * see COPYRIGHT |
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3 | */ |
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4 | |
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5 | /* these definitions are mostly taken from Microsoft's True Type |
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6 | documentation. |
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7 | */ |
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8 | |
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9 | #define BYTE unsigned char |
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10 | #define CHAR signed char |
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11 | #define USHORT unsigned short |
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12 | #define SHORT signed short |
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13 | #define ULONG unsigned int |
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14 | #define LONG signed int |
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15 | #define FWORD SHORT |
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16 | #define UFWORD USHORT |
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17 | |
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18 | #define ONOROFF 0x01 |
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19 | #define XSHORT 0x02 |
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20 | #define YSHORT 0x04 |
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21 | #define REPEAT 0x08 |
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22 | #define XSAME 0x10 |
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23 | #define YSAME 0x20 |
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24 | |
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25 | #define ARG_1_AND_2_ARE_WORDS 0x0001 |
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26 | #define ARGS_ARE_XY_VALUES 0x0002 |
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27 | #define XY_BOUND_TO_GRID 0x0004 |
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28 | #define WE_HAVE_A_SCALE 0x0008 |
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29 | #define MORE_COMPONENTS 0x0020 |
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30 | #define WE_HAVE_AN_X_AND_Y_SCALE 0x0040 |
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31 | #define WE_HAVE_A_TWO_BY_TWO 0x0080 |
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32 | #define WE_HAVE_INSTRUCTIONS 0x0100 |
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33 | #define USE_MY_METRICS 0x0200 |
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34 | |
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35 | typedef struct short_2 { |
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36 | SHORT upper; |
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37 | USHORT lower; |
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38 | } FIXED ; |
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39 | |
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40 | typedef struct longhormetric { |
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41 | UFWORD advanceWidth; |
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42 | FWORD lsb; |
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43 | } LONGHORMETRIC; |
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44 | |
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45 | typedef struct ttf_hhea { |
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46 | BYTE version[4]; |
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47 | SHORT ascender, descender, lineGap; |
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48 | USHORT advnaceWidthMax; |
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49 | SHORT minLSB, minRSB, xMaxExtent; |
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50 | SHORT caretSlopeRise, caretSlopeRun; |
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51 | SHORT reserved[5]; |
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52 | SHORT metricDataFormat; |
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53 | USHORT numberOfHMetrics; |
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54 | } TTF_HHEA; |
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55 | |
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56 | typedef struct ttf_dir_entry { |
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57 | char tag[4]; |
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58 | ULONG checksum; |
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59 | ULONG offset; |
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60 | ULONG length; |
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61 | } TTF_DIR_ENTRY ; |
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62 | |
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63 | typedef struct ttf_directory { |
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64 | ULONG sfntVersion; |
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65 | USHORT numTables; |
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66 | USHORT searchRange; |
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67 | USHORT entrySelector; |
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68 | USHORT rangeShift; |
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69 | TTF_DIR_ENTRY list; |
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70 | } TTF_DIRECTORY ; |
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71 | |
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72 | typedef struct ttf_name_rec { |
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73 | USHORT platformID; |
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74 | USHORT encodingID; |
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75 | USHORT languageID; |
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76 | USHORT nameID; |
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77 | USHORT stringLength; |
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78 | USHORT stringOffset; |
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79 | } TTF_NAME_REC; |
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80 | |
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81 | typedef struct ttf_name { |
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82 | USHORT format; |
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83 | USHORT numberOfNameRecords; |
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84 | USHORT offset; |
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85 | TTF_NAME_REC nameRecords; |
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86 | } TTF_NAME ; |
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87 | |
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88 | typedef struct ttf_head { |
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89 | ULONG version; |
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90 | ULONG fontRevision; |
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91 | ULONG checksumAdjust; |
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92 | ULONG magicNo; |
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93 | USHORT flags; |
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94 | USHORT unitsPerEm; |
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95 | BYTE created[8]; |
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96 | BYTE modified[8]; |
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97 | FWORD xMin, yMin, xMax, yMax; |
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98 | USHORT macStyle, lowestRecPPEM; |
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99 | SHORT fontDirection, indexToLocFormat, glyphDataFormat; |
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100 | } TTF_HEAD ; |
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101 | |
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102 | typedef struct ttf_kern { |
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103 | USHORT version, nTables; |
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104 | } TTF_KERN ; |
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105 | |
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106 | typedef struct ttf_kern_sub { |
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107 | USHORT version, length, coverage; |
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108 | USHORT nPairs, searchRange, entrySelector, rangeShift; |
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109 | } TTF_KERN_SUB; |
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110 | |
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111 | typedef struct ttf_kern_entry { |
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112 | USHORT left, right; |
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113 | FWORD value; |
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114 | } TTF_KERN_ENTRY; |
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115 | |
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116 | typedef struct ttf_cmap_fmt0 { |
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117 | USHORT format; |
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118 | USHORT length; |
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119 | USHORT version; |
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120 | BYTE glyphIdArray[256]; |
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121 | } TTF_CMAP_FMT0; |
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122 | |
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123 | typedef struct ttf_cmap_fmt4 { |
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124 | USHORT format; |
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125 | USHORT length; |
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126 | USHORT version; |
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127 | USHORT segCountX2; |
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128 | USHORT searchRange; |
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129 | USHORT entrySelector; |
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130 | USHORT rangeShift; |
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131 | } TTF_CMAP_FMT4; |
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132 | |
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133 | typedef struct ttf_cmap_entry { |
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134 | USHORT platformID; |
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135 | USHORT encodingID; |
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136 | ULONG offset; |
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137 | } TTF_CMAP_ENTRY; |
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138 | |
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139 | typedef struct ttf_cmap { |
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140 | USHORT version; |
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141 | USHORT numberOfEncodingTables; |
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142 | TTF_CMAP_ENTRY encodingTable[1]; |
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143 | } TTF_CMAP ; |
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144 | |
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145 | typedef struct ttf_glyf { |
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146 | SHORT numberOfContours; |
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147 | FWORD xMin, yMin, xMax, yMax; |
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148 | } TTF_GLYF ; |
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149 | |
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150 | typedef struct ttf_maxp { |
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151 | ULONG version; |
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152 | USHORT numGlyphs, maxPoints, maxContours; |
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153 | USHORT maxCompositePoints, maxCompositeContours; |
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154 | USHORT maxZones, maxTwilightPoints, maxStorage; |
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155 | USHORT maxFunctionDefs, maxInstructionsDefs; |
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156 | USHORT maxSizeOfInstructions, maxComponentElements; |
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157 | USHORT maxComponentDepth; |
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158 | } TTF_MAXP ; |
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159 | |
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160 | typedef struct ttf_post_head { |
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161 | ULONG formatType; |
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162 | FIXED italicAngle; |
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163 | FWORD underlinePosition; |
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164 | FWORD underlineThickness; |
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165 | ULONG isFixedPitch; |
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166 | ULONG minMemType42; |
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167 | ULONG maxMemType42; |
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168 | ULONG minMemType1; |
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169 | ULONG maxMemType1; |
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170 | USHORT numGlyphs; |
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171 | USHORT glyphNameIndex; |
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172 | } TTF_POST_HEAD ; |
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