2 * Copyright (c) 1988-1997 Sam Leffler
3 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
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.
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.
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
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.
33 typedef struct tableentry
35 unsigned short length
; /* bit length of g3 code */
36 unsigned short code
; /* g3 code */
37 short runlen
; /* run length in bits */
40 #define EOL 0x001 /* EOL code value - 0000 0000 0000 1 */
42 /* status values returned instead of a run length */
43 #define G3CODE_EOL -1 /* NB: ACT_EOL - ACT_WRUNT */
44 #define G3CODE_INVALID -2 /* NB: ACT_INVALID - ACT_WRUNT */
45 #define G3CODE_EOF -3 /* end of input data */
46 #define G3CODE_INCOMP -4 /* incomplete run code */
49 * Note that these tables are ordered such that the
50 * index into the table is known to be either the
51 * run length, or (run length / 64) + a fixed offset.
53 * NB: The G3CODE_INVALID entries are only used
54 * during state generation (see mkg3states.c).
57 const tableentry TIFFFaxWhiteCodes
[] = {
58 {8, 0x35, 0}, /* 0011 0101 */
59 {6, 0x7, 1}, /* 0001 11 */
60 {4, 0x7, 2}, /* 0111 */
61 {4, 0x8, 3}, /* 1000 */
62 {4, 0xB, 4}, /* 1011 */
63 {4, 0xC, 5}, /* 1100 */
64 {4, 0xE, 6}, /* 1110 */
65 {4, 0xF, 7}, /* 1111 */
66 {5, 0x13, 8}, /* 1001 1 */
67 {5, 0x14, 9}, /* 1010 0 */
68 {5, 0x7, 10}, /* 0011 1 */
69 {5, 0x8, 11}, /* 0100 0 */
70 {6, 0x8, 12}, /* 0010 00 */
71 {6, 0x3, 13}, /* 0000 11 */
72 {6, 0x34, 14}, /* 1101 00 */
73 {6, 0x35, 15}, /* 1101 01 */
74 {6, 0x2A, 16}, /* 1010 10 */
75 {6, 0x2B, 17}, /* 1010 11 */
76 {7, 0x27, 18}, /* 0100 111 */
77 {7, 0xC, 19}, /* 0001 100 */
78 {7, 0x8, 20}, /* 0001 000 */
79 {7, 0x17, 21}, /* 0010 111 */
80 {7, 0x3, 22}, /* 0000 011 */
81 {7, 0x4, 23}, /* 0000 100 */
82 {7, 0x28, 24}, /* 0101 000 */
83 {7, 0x2B, 25}, /* 0101 011 */
84 {7, 0x13, 26}, /* 0010 011 */
85 {7, 0x24, 27}, /* 0100 100 */
86 {7, 0x18, 28}, /* 0011 000 */
87 {8, 0x2, 29}, /* 0000 0010 */
88 {8, 0x3, 30}, /* 0000 0011 */
89 {8, 0x1A, 31}, /* 0001 1010 */
90 {8, 0x1B, 32}, /* 0001 1011 */
91 {8, 0x12, 33}, /* 0001 0010 */
92 {8, 0x13, 34}, /* 0001 0011 */
93 {8, 0x14, 35}, /* 0001 0100 */
94 {8, 0x15, 36}, /* 0001 0101 */
95 {8, 0x16, 37}, /* 0001 0110 */
96 {8, 0x17, 38}, /* 0001 0111 */
97 {8, 0x28, 39}, /* 0010 1000 */
98 {8, 0x29, 40}, /* 0010 1001 */
99 {8, 0x2A, 41}, /* 0010 1010 */
100 {8, 0x2B, 42}, /* 0010 1011 */
101 {8, 0x2C, 43}, /* 0010 1100 */
102 {8, 0x2D, 44}, /* 0010 1101 */
103 {8, 0x4, 45}, /* 0000 0100 */
104 {8, 0x5, 46}, /* 0000 0101 */
105 {8, 0xA, 47}, /* 0000 1010 */
106 {8, 0xB, 48}, /* 0000 1011 */
107 {8, 0x52, 49}, /* 0101 0010 */
108 {8, 0x53, 50}, /* 0101 0011 */
109 {8, 0x54, 51}, /* 0101 0100 */
110 {8, 0x55, 52}, /* 0101 0101 */
111 {8, 0x24, 53}, /* 0010 0100 */
112 {8, 0x25, 54}, /* 0010 0101 */
113 {8, 0x58, 55}, /* 0101 1000 */
114 {8, 0x59, 56}, /* 0101 1001 */
115 {8, 0x5A, 57}, /* 0101 1010 */
116 {8, 0x5B, 58}, /* 0101 1011 */
117 {8, 0x4A, 59}, /* 0100 1010 */
118 {8, 0x4B, 60}, /* 0100 1011 */
119 {8, 0x32, 61}, /* 0011 0010 */
120 {8, 0x33, 62}, /* 0011 0011 */
121 {8, 0x34, 63}, /* 0011 0100 */
122 {5, 0x1B, 64}, /* 1101 1 */
123 {5, 0x12, 128}, /* 1001 0 */
124 {6, 0x17, 192}, /* 0101 11 */
125 {7, 0x37, 256}, /* 0110 111 */
126 {8, 0x36, 320}, /* 0011 0110 */
127 {8, 0x37, 384}, /* 0011 0111 */
128 {8, 0x64, 448}, /* 0110 0100 */
129 {8, 0x65, 512}, /* 0110 0101 */
130 {8, 0x68, 576}, /* 0110 1000 */
131 {8, 0x67, 640}, /* 0110 0111 */
132 {9, 0xCC, 704}, /* 0110 0110 0 */
133 {9, 0xCD, 768}, /* 0110 0110 1 */
134 {9, 0xD2, 832}, /* 0110 1001 0 */
135 {9, 0xD3, 896}, /* 0110 1001 1 */
136 {9, 0xD4, 960}, /* 0110 1010 0 */
137 {9, 0xD5, 1024}, /* 0110 1010 1 */
138 {9, 0xD6, 1088}, /* 0110 1011 0 */
139 {9, 0xD7, 1152}, /* 0110 1011 1 */
140 {9, 0xD8, 1216}, /* 0110 1100 0 */
141 {9, 0xD9, 1280}, /* 0110 1100 1 */
142 {9, 0xDA, 1344}, /* 0110 1101 0 */
143 {9, 0xDB, 1408}, /* 0110 1101 1 */
144 {9, 0x98, 1472}, /* 0100 1100 0 */
145 {9, 0x99, 1536}, /* 0100 1100 1 */
146 {9, 0x9A, 1600}, /* 0100 1101 0 */
147 {6, 0x18, 1664}, /* 0110 00 */
148 {9, 0x9B, 1728}, /* 0100 1101 1 */
149 {11, 0x8, 1792}, /* 0000 0001 000 */
150 {11, 0xC, 1856}, /* 0000 0001 100 */
151 {11, 0xD, 1920}, /* 0000 0001 101 */
152 {12, 0x12, 1984}, /* 0000 0001 0010 */
153 {12, 0x13, 2048}, /* 0000 0001 0011 */
154 {12, 0x14, 2112}, /* 0000 0001 0100 */
155 {12, 0x15, 2176}, /* 0000 0001 0101 */
156 {12, 0x16, 2240}, /* 0000 0001 0110 */
157 {12, 0x17, 2304}, /* 0000 0001 0111 */
158 {12, 0x1C, 2368}, /* 0000 0001 1100 */
159 {12, 0x1D, 2432}, /* 0000 0001 1101 */
160 {12, 0x1E, 2496}, /* 0000 0001 1110 */
161 {12, 0x1F, 2560}, /* 0000 0001 1111 */
162 {12, 0x1, G3CODE_EOL
}, /* 0000 0000 0001 */
163 {9, 0x1, G3CODE_INVALID
}, /* 0000 0000 1 */
164 {10, 0x1, G3CODE_INVALID
}, /* 0000 0000 01 */
165 {11, 0x1, G3CODE_INVALID
}, /* 0000 0000 001 */
166 {12, 0x0, G3CODE_INVALID
}, /* 0000 0000 0000 */
169 const tableentry TIFFFaxBlackCodes
[] = {
170 {10, 0x37, 0}, /* 0000 1101 11 */
171 {3, 0x2, 1}, /* 010 */
172 {2, 0x3, 2}, /* 11 */
173 {2, 0x2, 3}, /* 10 */
174 {3, 0x3, 4}, /* 011 */
175 {4, 0x3, 5}, /* 0011 */
176 {4, 0x2, 6}, /* 0010 */
177 {5, 0x3, 7}, /* 0001 1 */
178 {6, 0x5, 8}, /* 0001 01 */
179 {6, 0x4, 9}, /* 0001 00 */
180 {7, 0x4, 10}, /* 0000 100 */
181 {7, 0x5, 11}, /* 0000 101 */
182 {7, 0x7, 12}, /* 0000 111 */
183 {8, 0x4, 13}, /* 0000 0100 */
184 {8, 0x7, 14}, /* 0000 0111 */
185 {9, 0x18, 15}, /* 0000 1100 0 */
186 {10, 0x17, 16}, /* 0000 0101 11 */
187 {10, 0x18, 17}, /* 0000 0110 00 */
188 {10, 0x8, 18}, /* 0000 0010 00 */
189 {11, 0x67, 19}, /* 0000 1100 111 */
190 {11, 0x68, 20}, /* 0000 1101 000 */
191 {11, 0x6C, 21}, /* 0000 1101 100 */
192 {11, 0x37, 22}, /* 0000 0110 111 */
193 {11, 0x28, 23}, /* 0000 0101 000 */
194 {11, 0x17, 24}, /* 0000 0010 111 */
195 {11, 0x18, 25}, /* 0000 0011 000 */
196 {12, 0xCA, 26}, /* 0000 1100 1010 */
197 {12, 0xCB, 27}, /* 0000 1100 1011 */
198 {12, 0xCC, 28}, /* 0000 1100 1100 */
199 {12, 0xCD, 29}, /* 0000 1100 1101 */
200 {12, 0x68, 30}, /* 0000 0110 1000 */
201 {12, 0x69, 31}, /* 0000 0110 1001 */
202 {12, 0x6A, 32}, /* 0000 0110 1010 */
203 {12, 0x6B, 33}, /* 0000 0110 1011 */
204 {12, 0xD2, 34}, /* 0000 1101 0010 */
205 {12, 0xD3, 35}, /* 0000 1101 0011 */
206 {12, 0xD4, 36}, /* 0000 1101 0100 */
207 {12, 0xD5, 37}, /* 0000 1101 0101 */
208 {12, 0xD6, 38}, /* 0000 1101 0110 */
209 {12, 0xD7, 39}, /* 0000 1101 0111 */
210 {12, 0x6C, 40}, /* 0000 0110 1100 */
211 {12, 0x6D, 41}, /* 0000 0110 1101 */
212 {12, 0xDA, 42}, /* 0000 1101 1010 */
213 {12, 0xDB, 43}, /* 0000 1101 1011 */
214 {12, 0x54, 44}, /* 0000 0101 0100 */
215 {12, 0x55, 45}, /* 0000 0101 0101 */
216 {12, 0x56, 46}, /* 0000 0101 0110 */
217 {12, 0x57, 47}, /* 0000 0101 0111 */
218 {12, 0x64, 48}, /* 0000 0110 0100 */
219 {12, 0x65, 49}, /* 0000 0110 0101 */
220 {12, 0x52, 50}, /* 0000 0101 0010 */
221 {12, 0x53, 51}, /* 0000 0101 0011 */
222 {12, 0x24, 52}, /* 0000 0010 0100 */
223 {12, 0x37, 53}, /* 0000 0011 0111 */
224 {12, 0x38, 54}, /* 0000 0011 1000 */
225 {12, 0x27, 55}, /* 0000 0010 0111 */
226 {12, 0x28, 56}, /* 0000 0010 1000 */
227 {12, 0x58, 57}, /* 0000 0101 1000 */
228 {12, 0x59, 58}, /* 0000 0101 1001 */
229 {12, 0x2B, 59}, /* 0000 0010 1011 */
230 {12, 0x2C, 60}, /* 0000 0010 1100 */
231 {12, 0x5A, 61}, /* 0000 0101 1010 */
232 {12, 0x66, 62}, /* 0000 0110 0110 */
233 {12, 0x67, 63}, /* 0000 0110 0111 */
234 {10, 0xF, 64}, /* 0000 0011 11 */
235 {12, 0xC8, 128}, /* 0000 1100 1000 */
236 {12, 0xC9, 192}, /* 0000 1100 1001 */
237 {12, 0x5B, 256}, /* 0000 0101 1011 */
238 {12, 0x33, 320}, /* 0000 0011 0011 */
239 {12, 0x34, 384}, /* 0000 0011 0100 */
240 {12, 0x35, 448}, /* 0000 0011 0101 */
241 {13, 0x6C, 512}, /* 0000 0011 0110 0 */
242 {13, 0x6D, 576}, /* 0000 0011 0110 1 */
243 {13, 0x4A, 640}, /* 0000 0010 0101 0 */
244 {13, 0x4B, 704}, /* 0000 0010 0101 1 */
245 {13, 0x4C, 768}, /* 0000 0010 0110 0 */
246 {13, 0x4D, 832}, /* 0000 0010 0110 1 */
247 {13, 0x72, 896}, /* 0000 0011 1001 0 */
248 {13, 0x73, 960}, /* 0000 0011 1001 1 */
249 {13, 0x74, 1024}, /* 0000 0011 1010 0 */
250 {13, 0x75, 1088}, /* 0000 0011 1010 1 */
251 {13, 0x76, 1152}, /* 0000 0011 1011 0 */
252 {13, 0x77, 1216}, /* 0000 0011 1011 1 */
253 {13, 0x52, 1280}, /* 0000 0010 1001 0 */
254 {13, 0x53, 1344}, /* 0000 0010 1001 1 */
255 {13, 0x54, 1408}, /* 0000 0010 1010 0 */
256 {13, 0x55, 1472}, /* 0000 0010 1010 1 */
257 {13, 0x5A, 1536}, /* 0000 0010 1101 0 */
258 {13, 0x5B, 1600}, /* 0000 0010 1101 1 */
259 {13, 0x64, 1664}, /* 0000 0011 0010 0 */
260 {13, 0x65, 1728}, /* 0000 0011 0010 1 */
261 {11, 0x8, 1792}, /* 0000 0001 000 */
262 {11, 0xC, 1856}, /* 0000 0001 100 */
263 {11, 0xD, 1920}, /* 0000 0001 101 */
264 {12, 0x12, 1984}, /* 0000 0001 0010 */
265 {12, 0x13, 2048}, /* 0000 0001 0011 */
266 {12, 0x14, 2112}, /* 0000 0001 0100 */
267 {12, 0x15, 2176}, /* 0000 0001 0101 */
268 {12, 0x16, 2240}, /* 0000 0001 0110 */
269 {12, 0x17, 2304}, /* 0000 0001 0111 */
270 {12, 0x1C, 2368}, /* 0000 0001 1100 */
271 {12, 0x1D, 2432}, /* 0000 0001 1101 */
272 {12, 0x1E, 2496}, /* 0000 0001 1110 */
273 {12, 0x1F, 2560}, /* 0000 0001 1111 */
274 {12, 0x1, G3CODE_EOL
}, /* 0000 0000 0001 */
275 {9, 0x1, G3CODE_INVALID
}, /* 0000 0000 1 */
276 {10, 0x1, G3CODE_INVALID
}, /* 0000 0000 01 */
277 {11, 0x1, G3CODE_INVALID
}, /* 0000 0000 001 */
278 {12, 0x0, G3CODE_INVALID
}, /* 0000 0000 0000 */
281 extern const tableentry TIFFFaxWhiteCodes
[];
282 extern const tableentry TIFFFaxBlackCodes
[];
