1 /* pcf.h 2 3 FreeType font driver for pcf fonts 4 5 Copyright (C) 2000, 2001, 2002, 2003, 2006, 2010 by 6 Francesco Zappa Nardelli 7 8 Permission is hereby granted, free of charge, to any person obtaining a copy 9 of this software and associated documentation files (the "Software"), to deal 10 in the Software without restriction, including without limitation the rights 11 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 copies of the Software, and to permit persons to whom the Software is 13 furnished to do so, subject to the following conditions: 14 15 The above copyright notice and this permission notice shall be included in 16 all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 21 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 THE SOFTWARE. 25 */ 26 27 28 #ifndef __PCF_H__ 29 #define __PCF_H__ 30 31 32 #include <ft2build.h> 33 #include FT_INTERNAL_DRIVER_H 34 #include FT_INTERNAL_STREAM_H 35 36 37 FT_BEGIN_HEADER 38 39 typedef struct PCF_TableRec_ 40 { 41 FT_ULong type; 42 FT_ULong format; 43 FT_ULong size; 44 FT_ULong offset; 45 46 } PCF_TableRec, *PCF_Table; 47 48 49 typedef struct PCF_TocRec_ 50 { 51 FT_ULong version; 52 FT_ULong count; 53 PCF_Table tables; 54 55 } PCF_TocRec, *PCF_Toc; 56 57 58 typedef struct PCF_ParsePropertyRec_ 59 { 60 FT_Long name; 61 FT_Byte isString; 62 FT_Long value; 63 64 } PCF_ParsePropertyRec, *PCF_ParseProperty; 65 66 67 typedef struct PCF_PropertyRec_ 68 { 69 FT_String* name; 70 FT_Byte isString; 71 72 union 73 { 74 FT_String* atom; 75 FT_Long l; 76 FT_ULong ul; 77 78 } value; 79 80 } PCF_PropertyRec, *PCF_Property; 81 82 83 typedef struct PCF_Compressed_MetricRec_ 84 { 85 FT_Byte leftSideBearing; 86 FT_Byte rightSideBearing; 87 FT_Byte characterWidth; 88 FT_Byte ascent; 89 FT_Byte descent; 90 91 } PCF_Compressed_MetricRec, *PCF_Compressed_Metric; 92 93 94 typedef struct PCF_MetricRec_ 95 { 96 FT_Short leftSideBearing; 97 FT_Short rightSideBearing; 98 FT_Short characterWidth; 99 FT_Short ascent; 100 FT_Short descent; 101 FT_Short attributes; 102 FT_ULong bits; 103 104 } PCF_MetricRec, *PCF_Metric; 105 106 107 typedef struct PCF_AccelRec_ 108 { 109 FT_Byte noOverlap; 110 FT_Byte constantMetrics; 111 FT_Byte terminalFont; 112 FT_Byte constantWidth; 113 FT_Byte inkInside; 114 FT_Byte inkMetrics; 115 FT_Byte drawDirection; 116 FT_Long fontAscent; 117 FT_Long fontDescent; 118 FT_Long maxOverlap; 119 PCF_MetricRec minbounds; 120 PCF_MetricRec maxbounds; 121 PCF_MetricRec ink_minbounds; 122 PCF_MetricRec ink_maxbounds; 123 124 } PCF_AccelRec, *PCF_Accel; 125 126 127 typedef struct PCF_EncodingRec_ 128 { 129 FT_Long enc; 130 FT_UShort glyph; 131 132 } PCF_EncodingRec, *PCF_Encoding; 133 134 135 typedef struct PCF_FaceRec_ 136 { 137 FT_FaceRec root; 138 139 FT_StreamRec comp_stream; 140 FT_Stream comp_source; 141 142 char* charset_encoding; 143 char* charset_registry; 144 145 PCF_TocRec toc; 146 PCF_AccelRec accel; 147 148 int nprops; 149 PCF_Property properties; 150 151 FT_ULong nmetrics; 152 PCF_Metric metrics; 153 FT_ULong nencodings; 154 PCF_Encoding encodings; 155 156 FT_Short defaultChar; 157 158 FT_ULong bitmapsFormat; 159 160 FT_CharMap charmap_handle; 161 FT_CharMapRec charmap; /* a single charmap per face */ 162 163 } PCF_FaceRec, *PCF_Face; 164 165 166 /* macros for pcf font format */ 167 168 #define LSBFirst 0 169 #define MSBFirst 1 170 171 #define PCF_FILE_VERSION ( ( 'p' << 24 ) | \ 172 ( 'c' << 16 ) | \ 173 ( 'f' << 8 ) | 1 ) 174 #define PCF_FORMAT_MASK 0xFFFFFF00UL 175 176 #define PCF_DEFAULT_FORMAT 0x00000000UL 177 #define PCF_INKBOUNDS 0x00000200UL 178 #define PCF_ACCEL_W_INKBOUNDS 0x00000100UL 179 #define PCF_COMPRESSED_METRICS 0x00000100UL 180 181 #define PCF_FORMAT_MATCH( a, b ) \ 182 ( ( (a) & PCF_FORMAT_MASK ) == ( (b) & PCF_FORMAT_MASK ) ) 183 184 #define PCF_GLYPH_PAD_MASK ( 3 << 0 ) 185 #define PCF_BYTE_MASK ( 1 << 2 ) 186 #define PCF_BIT_MASK ( 1 << 3 ) 187 #define PCF_SCAN_UNIT_MASK ( 3 << 4 ) 188 189 #define PCF_BYTE_ORDER( f ) \ 190 ( ( (f) & PCF_BYTE_MASK ) ? MSBFirst : LSBFirst ) 191 #define PCF_BIT_ORDER( f ) \ 192 ( ( (f) & PCF_BIT_MASK ) ? MSBFirst : LSBFirst ) 193 #define PCF_GLYPH_PAD_INDEX( f ) \ 194 ( (f) & PCF_GLYPH_PAD_MASK ) 195 #define PCF_GLYPH_PAD( f ) \ 196 ( 1 << PCF_GLYPH_PAD_INDEX( f ) ) 197 #define PCF_SCAN_UNIT_INDEX( f ) \ 198 ( ( (f) & PCF_SCAN_UNIT_MASK ) >> 4 ) 199 #define PCF_SCAN_UNIT( f ) \ 200 ( 1 << PCF_SCAN_UNIT_INDEX( f ) ) 201 #define PCF_FORMAT_BITS( f ) \ 202 ( (f) & ( PCF_GLYPH_PAD_MASK | \ 203 PCF_BYTE_MASK | \ 204 PCF_BIT_MASK | \ 205 PCF_SCAN_UNIT_MASK ) ) 206 207 #define PCF_SIZE_TO_INDEX( s ) ( (s) == 4 ? 2 : (s) == 2 ? 1 : 0 ) 208 #define PCF_INDEX_TO_SIZE( b ) ( 1 << b ) 209 210 #define PCF_FORMAT( bit, byte, glyph, scan ) \ 211 ( ( PCF_SIZE_TO_INDEX( scan ) << 4 ) | \ 212 ( ( (bit) == MSBFirst ? 1 : 0 ) << 3 ) | \ 213 ( ( (byte) == MSBFirst ? 1 : 0 ) << 2 ) | \ 214 ( PCF_SIZE_TO_INDEX( glyph ) << 0 ) ) 215 216 #define PCF_PROPERTIES ( 1 << 0 ) 217 #define PCF_ACCELERATORS ( 1 << 1 ) 218 #define PCF_METRICS ( 1 << 2 ) 219 #define PCF_BITMAPS ( 1 << 3 ) 220 #define PCF_INK_METRICS ( 1 << 4 ) 221 #define PCF_BDF_ENCODINGS ( 1 << 5 ) 222 #define PCF_SWIDTHS ( 1 << 6 ) 223 #define PCF_GLYPH_NAMES ( 1 << 7 ) 224 #define PCF_BDF_ACCELERATORS ( 1 << 8 ) 225 226 #define GLYPHPADOPTIONS 4 /* I'm not sure about this */ 227 228 FT_LOCAL( FT_Error ) 229 pcf_load_font( FT_Stream stream, 230 PCF_Face face, 231 FT_Long face_index ); 232 233 FT_END_HEADER 234 235 #endif /* __PCF_H__ */ 236 237 238 /* END */ 239
