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 /* 128 * This file uses X11 terminology for PCF data; an `encoding' in X11 speak 129 * is the same as a `character code' in FreeType speak. 130 */ 131 typedef struct PCF_EncodingRec_ 132 { 133 FT_ULong enc; 134 FT_UShort glyph; /* an index into PCF_Face's `metrics' array */ 135 136 } PCF_EncodingRec, *PCF_Encoding; 137 138 139 typedef struct PCF_FaceRec_ 140 { 141 FT_FaceRec root; 142 143 FT_StreamRec comp_stream; 144 FT_Stream comp_source; 145 146 char* charset_encoding; 147 char* charset_registry; 148 149 PCF_TocRec toc; 150 PCF_AccelRec accel; 151 152 int nprops; 153 PCF_Property properties; 154 155 FT_ULong nmetrics; 156 PCF_Metric metrics; 157 FT_ULong nencodings; 158 PCF_Encoding encodings; 159 160 FT_UShort defaultChar; 161 162 FT_ULong bitmapsFormat; 163 164 FT_CharMap charmap_handle; 165 FT_CharMapRec charmap; /* a single charmap per face */ 166 167 } PCF_FaceRec, *PCF_Face; 168 169 170 typedef struct PCF_DriverRec_ 171 { 172 FT_DriverRec root; 173 174 FT_Bool no_long_family_names; 175 176 } PCF_DriverRec, *PCF_Driver; 177 178 179 /* macros for pcf font format */ 180 181 #define LSBFirst 0 182 #define MSBFirst 1 183 184 #define PCF_FILE_VERSION ( ( 'p' << 24 ) | \ 185 ( 'c' << 16 ) | \ 186 ( 'f' << 8 ) | 1 ) 187 #define PCF_FORMAT_MASK 0xFFFFFF00UL 188 189 #define PCF_DEFAULT_FORMAT 0x00000000UL 190 #define PCF_INKBOUNDS 0x00000200UL 191 #define PCF_ACCEL_W_INKBOUNDS 0x00000100UL 192 #define PCF_COMPRESSED_METRICS 0x00000100UL 193 194 #define PCF_FORMAT_MATCH( a, b ) \ 195 ( ( (a) & PCF_FORMAT_MASK ) == ( (b) & PCF_FORMAT_MASK ) ) 196 197 #define PCF_GLYPH_PAD_MASK ( 3 << 0 ) 198 #define PCF_BYTE_MASK ( 1 << 2 ) 199 #define PCF_BIT_MASK ( 1 << 3 ) 200 #define PCF_SCAN_UNIT_MASK ( 3 << 4 ) 201 202 #define PCF_BYTE_ORDER( f ) \ 203 ( ( (f) & PCF_BYTE_MASK ) ? MSBFirst : LSBFirst ) 204 #define PCF_BIT_ORDER( f ) \ 205 ( ( (f) & PCF_BIT_MASK ) ? MSBFirst : LSBFirst ) 206 #define PCF_GLYPH_PAD_INDEX( f ) \ 207 ( (f) & PCF_GLYPH_PAD_MASK ) 208 #define PCF_GLYPH_PAD( f ) \ 209 ( 1 << PCF_GLYPH_PAD_INDEX( f ) ) 210 #define PCF_SCAN_UNIT_INDEX( f ) \ 211 ( ( (f) & PCF_SCAN_UNIT_MASK ) >> 4 ) 212 #define PCF_SCAN_UNIT( f ) \ 213 ( 1 << PCF_SCAN_UNIT_INDEX( f ) ) 214 #define PCF_FORMAT_BITS( f ) \ 215 ( (f) & ( PCF_GLYPH_PAD_MASK | \ 216 PCF_BYTE_MASK | \ 217 PCF_BIT_MASK | \ 218 PCF_SCAN_UNIT_MASK ) ) 219 220 #define PCF_SIZE_TO_INDEX( s ) ( (s) == 4 ? 2 : (s) == 2 ? 1 : 0 ) 221 #define PCF_INDEX_TO_SIZE( b ) ( 1 << b ) 222 223 #define PCF_FORMAT( bit, byte, glyph, scan ) \ 224 ( ( PCF_SIZE_TO_INDEX( scan ) << 4 ) | \ 225 ( ( (bit) == MSBFirst ? 1 : 0 ) << 3 ) | \ 226 ( ( (byte) == MSBFirst ? 1 : 0 ) << 2 ) | \ 227 ( PCF_SIZE_TO_INDEX( glyph ) << 0 ) ) 228 229 #define PCF_PROPERTIES ( 1 << 0 ) 230 #define PCF_ACCELERATORS ( 1 << 1 ) 231 #define PCF_METRICS ( 1 << 2 ) 232 #define PCF_BITMAPS ( 1 << 3 ) 233 #define PCF_INK_METRICS ( 1 << 4 ) 234 #define PCF_BDF_ENCODINGS ( 1 << 5 ) 235 #define PCF_SWIDTHS ( 1 << 6 ) 236 #define PCF_GLYPH_NAMES ( 1 << 7 ) 237 #define PCF_BDF_ACCELERATORS ( 1 << 8 ) 238 239 #define GLYPHPADOPTIONS 4 /* I'm not sure about this */ 240 241 FT_LOCAL( FT_Error ) 242 pcf_load_font( FT_Stream stream, 243 PCF_Face face, 244 FT_Long face_index ); 245 246 FT_END_HEADER 247 248 #endif /* PCF_H_ */ 249 250 251 /* END */ 252