1 /* 2 * Copyright (c) 1988-1997 Sam Leffler 3 * Copyright (c) 1991-1997 Silicon Graphics, Inc. 4 * 5 * Permission to use, copy, modify, distribute, and sell this software and 6 * its documentation for any purpose is hereby granted without fee, provided 7 * that (i) the above copyright notices and this permission notice appear in 8 * all copies of the software and related documentation, and (ii) the names of 9 * Sam Leffler and Silicon Graphics may not be used in any advertising or 10 * publicity relating to the software without the specific, prior written 11 * permission of Sam Leffler and Silicon Graphics. 12 * 13 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 14 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 15 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 16 * 17 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR 18 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, 19 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 20 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 21 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 22 * OF THIS SOFTWARE. 23 */ 24 25 #ifndef _T4_ 26 #define _T4_ 27 /* 28 * CCITT T.4 1D Huffman runlength codes and 29 * related definitions. Given the small sizes 30 * of these tables it does not seem 31 * worthwhile to make code & length 8 bits. 32 */ 33 typedef struct tableentry { 34 unsigned short length; /* bit length of g3 code */ 35 unsigned short code; /* g3 code */ 36 short runlen; /* run length in bits */ 37 } tableentry; 38 39 #define EOL 0x001 /* EOL code value - 0000 0000 0000 1 */ 40 41 /* status values returned instead of a run length */ 42 #define G3CODE_EOL -1 /* NB: ACT_EOL - ACT_WRUNT */ 43 #define G3CODE_INVALID -2 /* NB: ACT_INVALID - ACT_WRUNT */ 44 #define G3CODE_EOF -3 /* end of input data */ 45 #define G3CODE_INCOMP -4 /* incomplete run code */ 46 47 /* 48 * Note that these tables are ordered such that the 49 * index into the table is known to be either the 50 * run length, or (run length / 64) + a fixed offset. 51 * 52 * NB: The G3CODE_INVALID entries are only used 53 * during state generation (see mkg3states.c). 54 */ 55 #ifdef G3CODES 56 const tableentry TIFFFaxWhiteCodes[] = { 57 { 8, 0x35, 0 }, /* 0011 0101 */ 58 { 6, 0x7, 1 }, /* 0001 11 */ 59 { 4, 0x7, 2 }, /* 0111 */ 60 { 4, 0x8, 3 }, /* 1000 */ 61 { 4, 0xB, 4 }, /* 1011 */ 62 { 4, 0xC, 5 }, /* 1100 */ 63 { 4, 0xE, 6 }, /* 1110 */ 64 { 4, 0xF, 7 }, /* 1111 */ 65 { 5, 0x13, 8 }, /* 1001 1 */ 66 { 5, 0x14, 9 }, /* 1010 0 */ 67 { 5, 0x7, 10 }, /* 0011 1 */ 68 { 5, 0x8, 11 }, /* 0100 0 */ 69 { 6, 0x8, 12 }, /* 0010 00 */ 70 { 6, 0x3, 13 }, /* 0000 11 */ 71 { 6, 0x34, 14 }, /* 1101 00 */ 72 { 6, 0x35, 15 }, /* 1101 01 */ 73 { 6, 0x2A, 16 }, /* 1010 10 */ 74 { 6, 0x2B, 17 }, /* 1010 11 */ 75 { 7, 0x27, 18 }, /* 0100 111 */ 76 { 7, 0xC, 19 }, /* 0001 100 */ 77 { 7, 0x8, 20 }, /* 0001 000 */ 78 { 7, 0x17, 21 }, /* 0010 111 */ 79 { 7, 0x3, 22 }, /* 0000 011 */ 80 { 7, 0x4, 23 }, /* 0000 100 */ 81 { 7, 0x28, 24 }, /* 0101 000 */ 82 { 7, 0x2B, 25 }, /* 0101 011 */ 83 { 7, 0x13, 26 }, /* 0010 011 */ 84 { 7, 0x24, 27 }, /* 0100 100 */ 85 { 7, 0x18, 28 }, /* 0011 000 */ 86 { 8, 0x2, 29 }, /* 0000 0010 */ 87 { 8, 0x3, 30 }, /* 0000 0011 */ 88 { 8, 0x1A, 31 }, /* 0001 1010 */ 89 { 8, 0x1B, 32 }, /* 0001 1011 */ 90 { 8, 0x12, 33 }, /* 0001 0010 */ 91 { 8, 0x13, 34 }, /* 0001 0011 */ 92 { 8, 0x14, 35 }, /* 0001 0100 */ 93 { 8, 0x15, 36 }, /* 0001 0101 */ 94 { 8, 0x16, 37 }, /* 0001 0110 */ 95 { 8, 0x17, 38 }, /* 0001 0111 */ 96 { 8, 0x28, 39 }, /* 0010 1000 */ 97 { 8, 0x29, 40 }, /* 0010 1001 */ 98 { 8, 0x2A, 41 }, /* 0010 1010 */ 99 { 8, 0x2B, 42 }, /* 0010 1011 */ 100 { 8, 0x2C, 43 }, /* 0010 1100 */ 101 { 8, 0x2D, 44 }, /* 0010 1101 */ 102 { 8, 0x4, 45 }, /* 0000 0100 */ 103 { 8, 0x5, 46 }, /* 0000 0101 */ 104 { 8, 0xA, 47 }, /* 0000 1010 */ 105 { 8, 0xB, 48 }, /* 0000 1011 */ 106 { 8, 0x52, 49 }, /* 0101 0010 */ 107 { 8, 0x53, 50 }, /* 0101 0011 */ 108 { 8, 0x54, 51 }, /* 0101 0100 */ 109 { 8, 0x55, 52 }, /* 0101 0101 */ 110 { 8, 0x24, 53 }, /* 0010 0100 */ 111 { 8, 0x25, 54 }, /* 0010 0101 */ 112 { 8, 0x58, 55 }, /* 0101 1000 */ 113 { 8, 0x59, 56 }, /* 0101 1001 */ 114 { 8, 0x5A, 57 }, /* 0101 1010 */ 115 { 8, 0x5B, 58 }, /* 0101 1011 */ 116 { 8, 0x4A, 59 }, /* 0100 1010 */ 117 { 8, 0x4B, 60 }, /* 0100 1011 */ 118 { 8, 0x32, 61 }, /* 0011 0010 */ 119 { 8, 0x33, 62 }, /* 0011 0011 */ 120 { 8, 0x34, 63 }, /* 0011 0100 */ 121 { 5, 0x1B, 64 }, /* 1101 1 */ 122 { 5, 0x12, 128 }, /* 1001 0 */ 123 { 6, 0x17, 192 }, /* 0101 11 */ 124 { 7, 0x37, 256 }, /* 0110 111 */ 125 { 8, 0x36, 320 }, /* 0011 0110 */ 126 { 8, 0x37, 384 }, /* 0011 0111 */ 127 { 8, 0x64, 448 }, /* 0110 0100 */ 128 { 8, 0x65, 512 }, /* 0110 0101 */ 129 { 8, 0x68, 576 }, /* 0110 1000 */ 130 { 8, 0x67, 640 }, /* 0110 0111 */ 131 { 9, 0xCC, 704 }, /* 0110 0110 0 */ 132 { 9, 0xCD, 768 }, /* 0110 0110 1 */ 133 { 9, 0xD2, 832 }, /* 0110 1001 0 */ 134 { 9, 0xD3, 896 }, /* 0110 1001 1 */ 135 { 9, 0xD4, 960 }, /* 0110 1010 0 */ 136 { 9, 0xD5, 1024 }, /* 0110 1010 1 */ 137 { 9, 0xD6, 1088 }, /* 0110 1011 0 */ 138 { 9, 0xD7, 1152 }, /* 0110 1011 1 */ 139 { 9, 0xD8, 1216 }, /* 0110 1100 0 */ 140 { 9, 0xD9, 1280 }, /* 0110 1100 1 */ 141 { 9, 0xDA, 1344 }, /* 0110 1101 0 */ 142 { 9, 0xDB, 1408 }, /* 0110 1101 1 */ 143 { 9, 0x98, 1472 }, /* 0100 1100 0 */ 144 { 9, 0x99, 1536 }, /* 0100 1100 1 */ 145 { 9, 0x9A, 1600 }, /* 0100 1101 0 */ 146 { 6, 0x18, 1664 }, /* 0110 00 */ 147 { 9, 0x9B, 1728 }, /* 0100 1101 1 */ 148 { 11, 0x8, 1792 }, /* 0000 0001 000 */ 149 { 11, 0xC, 1856 }, /* 0000 0001 100 */ 150 { 11, 0xD, 1920 }, /* 0000 0001 101 */ 151 { 12, 0x12, 1984 }, /* 0000 0001 0010 */ 152 { 12, 0x13, 2048 }, /* 0000 0001 0011 */ 153 { 12, 0x14, 2112 }, /* 0000 0001 0100 */ 154 { 12, 0x15, 2176 }, /* 0000 0001 0101 */ 155 { 12, 0x16, 2240 }, /* 0000 0001 0110 */ 156 { 12, 0x17, 2304 }, /* 0000 0001 0111 */ 157 { 12, 0x1C, 2368 }, /* 0000 0001 1100 */ 158 { 12, 0x1D, 2432 }, /* 0000 0001 1101 */ 159 { 12, 0x1E, 2496 }, /* 0000 0001 1110 */ 160 { 12, 0x1F, 2560 }, /* 0000 0001 1111 */ 161 { 12, 0x1, G3CODE_EOL }, /* 0000 0000 0001 */ 162 { 9, 0x1, G3CODE_INVALID }, /* 0000 0000 1 */ 163 { 10, 0x1, G3CODE_INVALID }, /* 0000 0000 01 */ 164 { 11, 0x1, G3CODE_INVALID }, /* 0000 0000 001 */ 165 { 12, 0x0, G3CODE_INVALID }, /* 0000 0000 0000 */ 166 }; 167 168 const tableentry TIFFFaxBlackCodes[] = { 169 { 10, 0x37, 0 }, /* 0000 1101 11 */ 170 { 3, 0x2, 1 }, /* 010 */ 171 { 2, 0x3, 2 }, /* 11 */ 172 { 2, 0x2, 3 }, /* 10 */ 173 { 3, 0x3, 4 }, /* 011 */ 174 { 4, 0x3, 5 }, /* 0011 */ 175 { 4, 0x2, 6 }, /* 0010 */ 176 { 5, 0x3, 7 }, /* 0001 1 */ 177 { 6, 0x5, 8 }, /* 0001 01 */ 178 { 6, 0x4, 9 }, /* 0001 00 */ 179 { 7, 0x4, 10 }, /* 0000 100 */ 180 { 7, 0x5, 11 }, /* 0000 101 */ 181 { 7, 0x7, 12 }, /* 0000 111 */ 182 { 8, 0x4, 13 }, /* 0000 0100 */ 183 { 8, 0x7, 14 }, /* 0000 0111 */ 184 { 9, 0x18, 15 }, /* 0000 1100 0 */ 185 { 10, 0x17, 16 }, /* 0000 0101 11 */ 186 { 10, 0x18, 17 }, /* 0000 0110 00 */ 187 { 10, 0x8, 18 }, /* 0000 0010 00 */ 188 { 11, 0x67, 19 }, /* 0000 1100 111 */ 189 { 11, 0x68, 20 }, /* 0000 1101 000 */ 190 { 11, 0x6C, 21 }, /* 0000 1101 100 */ 191 { 11, 0x37, 22 }, /* 0000 0110 111 */ 192 { 11, 0x28, 23 }, /* 0000 0101 000 */ 193 { 11, 0x17, 24 }, /* 0000 0010 111 */ 194 { 11, 0x18, 25 }, /* 0000 0011 000 */ 195 { 12, 0xCA, 26 }, /* 0000 1100 1010 */ 196 { 12, 0xCB, 27 }, /* 0000 1100 1011 */ 197 { 12, 0xCC, 28 }, /* 0000 1100 1100 */ 198 { 12, 0xCD, 29 }, /* 0000 1100 1101 */ 199 { 12, 0x68, 30 }, /* 0000 0110 1000 */ 200 { 12, 0x69, 31 }, /* 0000 0110 1001 */ 201 { 12, 0x6A, 32 }, /* 0000 0110 1010 */ 202 { 12, 0x6B, 33 }, /* 0000 0110 1011 */ 203 { 12, 0xD2, 34 }, /* 0000 1101 0010 */ 204 { 12, 0xD3, 35 }, /* 0000 1101 0011 */ 205 { 12, 0xD4, 36 }, /* 0000 1101 0100 */ 206 { 12, 0xD5, 37 }, /* 0000 1101 0101 */ 207 { 12, 0xD6, 38 }, /* 0000 1101 0110 */ 208 { 12, 0xD7, 39 }, /* 0000 1101 0111 */ 209 { 12, 0x6C, 40 }, /* 0000 0110 1100 */ 210 { 12, 0x6D, 41 }, /* 0000 0110 1101 */ 211 { 12, 0xDA, 42 }, /* 0000 1101 1010 */ 212 { 12, 0xDB, 43 }, /* 0000 1101 1011 */ 213 { 12, 0x54, 44 }, /* 0000 0101 0100 */ 214 { 12, 0x55, 45 }, /* 0000 0101 0101 */ 215 { 12, 0x56, 46 }, /* 0000 0101 0110 */ 216 { 12, 0x57, 47 }, /* 0000 0101 0111 */ 217 { 12, 0x64, 48 }, /* 0000 0110 0100 */ 218 { 12, 0x65, 49 }, /* 0000 0110 0101 */ 219 { 12, 0x52, 50 }, /* 0000 0101 0010 */ 220 { 12, 0x53, 51 }, /* 0000 0101 0011 */ 221 { 12, 0x24, 52 }, /* 0000 0010 0100 */ 222 { 12, 0x37, 53 }, /* 0000 0011 0111 */ 223 { 12, 0x38, 54 }, /* 0000 0011 1000 */ 224 { 12, 0x27, 55 }, /* 0000 0010 0111 */ 225 { 12, 0x28, 56 }, /* 0000 0010 1000 */ 226 { 12, 0x58, 57 }, /* 0000 0101 1000 */ 227 { 12, 0x59, 58 }, /* 0000 0101 1001 */ 228 { 12, 0x2B, 59 }, /* 0000 0010 1011 */ 229 { 12, 0x2C, 60 }, /* 0000 0010 1100 */ 230 { 12, 0x5A, 61 }, /* 0000 0101 1010 */ 231 { 12, 0x66, 62 }, /* 0000 0110 0110 */ 232 { 12, 0x67, 63 }, /* 0000 0110 0111 */ 233 { 10, 0xF, 64 }, /* 0000 0011 11 */ 234 { 12, 0xC8, 128 }, /* 0000 1100 1000 */ 235 { 12, 0xC9, 192 }, /* 0000 1100 1001 */ 236 { 12, 0x5B, 256 }, /* 0000 0101 1011 */ 237 { 12, 0x33, 320 }, /* 0000 0011 0011 */ 238 { 12, 0x34, 384 }, /* 0000 0011 0100 */ 239 { 12, 0x35, 448 }, /* 0000 0011 0101 */ 240 { 13, 0x6C, 512 }, /* 0000 0011 0110 0 */ 241 { 13, 0x6D, 576 }, /* 0000 0011 0110 1 */ 242 { 13, 0x4A, 640 }, /* 0000 0010 0101 0 */ 243 { 13, 0x4B, 704 }, /* 0000 0010 0101 1 */ 244 { 13, 0x4C, 768 }, /* 0000 0010 0110 0 */ 245 { 13, 0x4D, 832 }, /* 0000 0010 0110 1 */ 246 { 13, 0x72, 896 }, /* 0000 0011 1001 0 */ 247 { 13, 0x73, 960 }, /* 0000 0011 1001 1 */ 248 { 13, 0x74, 1024 }, /* 0000 0011 1010 0 */ 249 { 13, 0x75, 1088 }, /* 0000 0011 1010 1 */ 250 { 13, 0x76, 1152 }, /* 0000 0011 1011 0 */ 251 { 13, 0x77, 1216 }, /* 0000 0011 1011 1 */ 252 { 13, 0x52, 1280 }, /* 0000 0010 1001 0 */ 253 { 13, 0x53, 1344 }, /* 0000 0010 1001 1 */ 254 { 13, 0x54, 1408 }, /* 0000 0010 1010 0 */ 255 { 13, 0x55, 1472 }, /* 0000 0010 1010 1 */ 256 { 13, 0x5A, 1536 }, /* 0000 0010 1101 0 */ 257 { 13, 0x5B, 1600 }, /* 0000 0010 1101 1 */ 258 { 13, 0x64, 1664 }, /* 0000 0011 0010 0 */ 259 { 13, 0x65, 1728 }, /* 0000 0011 0010 1 */ 260 { 11, 0x8, 1792 }, /* 0000 0001 000 */ 261 { 11, 0xC, 1856 }, /* 0000 0001 100 */ 262 { 11, 0xD, 1920 }, /* 0000 0001 101 */ 263 { 12, 0x12, 1984 }, /* 0000 0001 0010 */ 264 { 12, 0x13, 2048 }, /* 0000 0001 0011 */ 265 { 12, 0x14, 2112 }, /* 0000 0001 0100 */ 266 { 12, 0x15, 2176 }, /* 0000 0001 0101 */ 267 { 12, 0x16, 2240 }, /* 0000 0001 0110 */ 268 { 12, 0x17, 2304 }, /* 0000 0001 0111 */ 269 { 12, 0x1C, 2368 }, /* 0000 0001 1100 */ 270 { 12, 0x1D, 2432 }, /* 0000 0001 1101 */ 271 { 12, 0x1E, 2496 }, /* 0000 0001 1110 */ 272 { 12, 0x1F, 2560 }, /* 0000 0001 1111 */ 273 { 12, 0x1, G3CODE_EOL }, /* 0000 0000 0001 */ 274 { 9, 0x1, G3CODE_INVALID }, /* 0000 0000 1 */ 275 { 10, 0x1, G3CODE_INVALID }, /* 0000 0000 01 */ 276 { 11, 0x1, G3CODE_INVALID }, /* 0000 0000 001 */ 277 { 12, 0x0, G3CODE_INVALID }, /* 0000 0000 0000 */ 278 }; 279 #else 280 extern const tableentry TIFFFaxWhiteCodes[]; 281 extern const tableentry TIFFFaxBlackCodes[]; 282 #endif 283 #endif /* _T4_ */ 284 /* 285 * Local Variables: 286 * mode: c 287 * c-basic-offset: 8 288 * fill-column: 78 289 * End: 290 */ 291