1/* $Id: t4.h 276 2010-06-30 12:18:30Z nijtmans $ */
2
3/*
4 * Copyright (c) 1988-1997 Sam Leffler
5 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
6 *
7 * Permission to use, copy, modify, distribute, and sell this software and
8 * its documentation for any purpose is hereby granted without fee, provided
9 * that (i) the above copyright notices and this permission notice appear in
10 * all copies of the software and related documentation, and (ii) the names of
11 * Sam Leffler and Silicon Graphics may not be used in any advertising or
12 * publicity relating to the software without the specific, prior written
13 * permission of Sam Leffler and Silicon Graphics.
14 *
15 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
17 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
18 *
19 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
20 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
21 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
22 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24 * OF THIS SOFTWARE.
25 */
26
27#ifndef _T4_
28#define	_T4_
29/*
30 * CCITT T.4 1D Huffman runlength codes and
31 * related definitions.  Given the small sizes
32 * of these tables it does not seem
33 * worthwhile to make code & length 8 bits.
34 */
35typedef struct tableentry {
36    unsigned short length;	/* bit length of g3 code */
37    unsigned short code;	/* g3 code */
38    short	runlen;		/* run length in bits */
39} tableentry;
40
41#define	EOL	0x001	/* EOL code value - 0000 0000 0000 1 */
42
43/* status values returned instead of a run length */
44#define	G3CODE_EOL	-1	/* NB: ACT_EOL - ACT_WRUNT */
45#define	G3CODE_INVALID	-2	/* NB: ACT_INVALID - ACT_WRUNT */
46#define	G3CODE_EOF	-3	/* end of input data */
47#define	G3CODE_INCOMP	-4	/* incomplete run code */
48
49/*
50 * Note that these tables are ordered such that the
51 * index into the table is known to be either the
52 * run length, or (run length / 64) + a fixed offset.
53 *
54 * NB: The G3CODE_INVALID entries are only used
55 *     during state generation (see mkg3states.c).
56 */
57#ifdef G3CODES
58const tableentry TIFFFaxWhiteCodes[] = {
59    { 8, 0x35, 0 },	/* 0011 0101 */
60    { 6, 0x7, 1 },	/* 0001 11 */
61    { 4, 0x7, 2 },	/* 0111 */
62    { 4, 0x8, 3 },	/* 1000 */
63    { 4, 0xB, 4 },	/* 1011 */
64    { 4, 0xC, 5 },	/* 1100 */
65    { 4, 0xE, 6 },	/* 1110 */
66    { 4, 0xF, 7 },	/* 1111 */
67    { 5, 0x13, 8 },	/* 1001 1 */
68    { 5, 0x14, 9 },	/* 1010 0 */
69    { 5, 0x7, 10 },	/* 0011 1 */
70    { 5, 0x8, 11 },	/* 0100 0 */
71    { 6, 0x8, 12 },	/* 0010 00 */
72    { 6, 0x3, 13 },	/* 0000 11 */
73    { 6, 0x34, 14 },	/* 1101 00 */
74    { 6, 0x35, 15 },	/* 1101 01 */
75    { 6, 0x2A, 16 },	/* 1010 10 */
76    { 6, 0x2B, 17 },	/* 1010 11 */
77    { 7, 0x27, 18 },	/* 0100 111 */
78    { 7, 0xC, 19 },	/* 0001 100 */
79    { 7, 0x8, 20 },	/* 0001 000 */
80    { 7, 0x17, 21 },	/* 0010 111 */
81    { 7, 0x3, 22 },	/* 0000 011 */
82    { 7, 0x4, 23 },	/* 0000 100 */
83    { 7, 0x28, 24 },	/* 0101 000 */
84    { 7, 0x2B, 25 },	/* 0101 011 */
85    { 7, 0x13, 26 },	/* 0010 011 */
86    { 7, 0x24, 27 },	/* 0100 100 */
87    { 7, 0x18, 28 },	/* 0011 000 */
88    { 8, 0x2, 29 },	/* 0000 0010 */
89    { 8, 0x3, 30 },	/* 0000 0011 */
90    { 8, 0x1A, 31 },	/* 0001 1010 */
91    { 8, 0x1B, 32 },	/* 0001 1011 */
92    { 8, 0x12, 33 },	/* 0001 0010 */
93    { 8, 0x13, 34 },	/* 0001 0011 */
94    { 8, 0x14, 35 },	/* 0001 0100 */
95    { 8, 0x15, 36 },	/* 0001 0101 */
96    { 8, 0x16, 37 },	/* 0001 0110 */
97    { 8, 0x17, 38 },	/* 0001 0111 */
98    { 8, 0x28, 39 },	/* 0010 1000 */
99    { 8, 0x29, 40 },	/* 0010 1001 */
100    { 8, 0x2A, 41 },	/* 0010 1010 */
101    { 8, 0x2B, 42 },	/* 0010 1011 */
102    { 8, 0x2C, 43 },	/* 0010 1100 */
103    { 8, 0x2D, 44 },	/* 0010 1101 */
104    { 8, 0x4, 45 },	/* 0000 0100 */
105    { 8, 0x5, 46 },	/* 0000 0101 */
106    { 8, 0xA, 47 },	/* 0000 1010 */
107    { 8, 0xB, 48 },	/* 0000 1011 */
108    { 8, 0x52, 49 },	/* 0101 0010 */
109    { 8, 0x53, 50 },	/* 0101 0011 */
110    { 8, 0x54, 51 },	/* 0101 0100 */
111    { 8, 0x55, 52 },	/* 0101 0101 */
112    { 8, 0x24, 53 },	/* 0010 0100 */
113    { 8, 0x25, 54 },	/* 0010 0101 */
114    { 8, 0x58, 55 },	/* 0101 1000 */
115    { 8, 0x59, 56 },	/* 0101 1001 */
116    { 8, 0x5A, 57 },	/* 0101 1010 */
117    { 8, 0x5B, 58 },	/* 0101 1011 */
118    { 8, 0x4A, 59 },	/* 0100 1010 */
119    { 8, 0x4B, 60 },	/* 0100 1011 */
120    { 8, 0x32, 61 },	/* 0011 0010 */
121    { 8, 0x33, 62 },	/* 0011 0011 */
122    { 8, 0x34, 63 },	/* 0011 0100 */
123    { 5, 0x1B, 64 },	/* 1101 1 */
124    { 5, 0x12, 128 },	/* 1001 0 */
125    { 6, 0x17, 192 },	/* 0101 11 */
126    { 7, 0x37, 256 },	/* 0110 111 */
127    { 8, 0x36, 320 },	/* 0011 0110 */
128    { 8, 0x37, 384 },	/* 0011 0111 */
129    { 8, 0x64, 448 },	/* 0110 0100 */
130    { 8, 0x65, 512 },	/* 0110 0101 */
131    { 8, 0x68, 576 },	/* 0110 1000 */
132    { 8, 0x67, 640 },	/* 0110 0111 */
133    { 9, 0xCC, 704 },	/* 0110 0110 0 */
134    { 9, 0xCD, 768 },	/* 0110 0110 1 */
135    { 9, 0xD2, 832 },	/* 0110 1001 0 */
136    { 9, 0xD3, 896 },	/* 0110 1001 1 */
137    { 9, 0xD4, 960 },	/* 0110 1010 0 */
138    { 9, 0xD5, 1024 },	/* 0110 1010 1 */
139    { 9, 0xD6, 1088 },	/* 0110 1011 0 */
140    { 9, 0xD7, 1152 },	/* 0110 1011 1 */
141    { 9, 0xD8, 1216 },	/* 0110 1100 0 */
142    { 9, 0xD9, 1280 },	/* 0110 1100 1 */
143    { 9, 0xDA, 1344 },	/* 0110 1101 0 */
144    { 9, 0xDB, 1408 },	/* 0110 1101 1 */
145    { 9, 0x98, 1472 },	/* 0100 1100 0 */
146    { 9, 0x99, 1536 },	/* 0100 1100 1 */
147    { 9, 0x9A, 1600 },	/* 0100 1101 0 */
148    { 6, 0x18, 1664 },	/* 0110 00 */
149    { 9, 0x9B, 1728 },	/* 0100 1101 1 */
150    { 11, 0x8, 1792 },	/* 0000 0001 000 */
151    { 11, 0xC, 1856 },	/* 0000 0001 100 */
152    { 11, 0xD, 1920 },	/* 0000 0001 101 */
153    { 12, 0x12, 1984 },	/* 0000 0001 0010 */
154    { 12, 0x13, 2048 },	/* 0000 0001 0011 */
155    { 12, 0x14, 2112 },	/* 0000 0001 0100 */
156    { 12, 0x15, 2176 },	/* 0000 0001 0101 */
157    { 12, 0x16, 2240 },	/* 0000 0001 0110 */
158    { 12, 0x17, 2304 },	/* 0000 0001 0111 */
159    { 12, 0x1C, 2368 },	/* 0000 0001 1100 */
160    { 12, 0x1D, 2432 },	/* 0000 0001 1101 */
161    { 12, 0x1E, 2496 },	/* 0000 0001 1110 */
162    { 12, 0x1F, 2560 },	/* 0000 0001 1111 */
163    { 12, 0x1, G3CODE_EOL },	/* 0000 0000 0001 */
164    { 9, 0x1, G3CODE_INVALID },	/* 0000 0000 1 */
165    { 10, 0x1, G3CODE_INVALID },	/* 0000 0000 01 */
166    { 11, 0x1, G3CODE_INVALID },	/* 0000 0000 001 */
167    { 12, 0x0, G3CODE_INVALID },	/* 0000 0000 0000 */
168};
169
170const tableentry TIFFFaxBlackCodes[] = {
171    { 10, 0x37, 0 },	/* 0000 1101 11 */
172    { 3, 0x2, 1 },	/* 010 */
173    { 2, 0x3, 2 },	/* 11 */
174    { 2, 0x2, 3 },	/* 10 */
175    { 3, 0x3, 4 },	/* 011 */
176    { 4, 0x3, 5 },	/* 0011 */
177    { 4, 0x2, 6 },	/* 0010 */
178    { 5, 0x3, 7 },	/* 0001 1 */
179    { 6, 0x5, 8 },	/* 0001 01 */
180    { 6, 0x4, 9 },	/* 0001 00 */
181    { 7, 0x4, 10 },	/* 0000 100 */
182    { 7, 0x5, 11 },	/* 0000 101 */
183    { 7, 0x7, 12 },	/* 0000 111 */
184    { 8, 0x4, 13 },	/* 0000 0100 */
185    { 8, 0x7, 14 },	/* 0000 0111 */
186    { 9, 0x18, 15 },	/* 0000 1100 0 */
187    { 10, 0x17, 16 },	/* 0000 0101 11 */
188    { 10, 0x18, 17 },	/* 0000 0110 00 */
189    { 10, 0x8, 18 },	/* 0000 0010 00 */
190    { 11, 0x67, 19 },	/* 0000 1100 111 */
191    { 11, 0x68, 20 },	/* 0000 1101 000 */
192    { 11, 0x6C, 21 },	/* 0000 1101 100 */
193    { 11, 0x37, 22 },	/* 0000 0110 111 */
194    { 11, 0x28, 23 },	/* 0000 0101 000 */
195    { 11, 0x17, 24 },	/* 0000 0010 111 */
196    { 11, 0x18, 25 },	/* 0000 0011 000 */
197    { 12, 0xCA, 26 },	/* 0000 1100 1010 */
198    { 12, 0xCB, 27 },	/* 0000 1100 1011 */
199    { 12, 0xCC, 28 },	/* 0000 1100 1100 */
200    { 12, 0xCD, 29 },	/* 0000 1100 1101 */
201    { 12, 0x68, 30 },	/* 0000 0110 1000 */
202    { 12, 0x69, 31 },	/* 0000 0110 1001 */
203    { 12, 0x6A, 32 },	/* 0000 0110 1010 */
204    { 12, 0x6B, 33 },	/* 0000 0110 1011 */
205    { 12, 0xD2, 34 },	/* 0000 1101 0010 */
206    { 12, 0xD3, 35 },	/* 0000 1101 0011 */
207    { 12, 0xD4, 36 },	/* 0000 1101 0100 */
208    { 12, 0xD5, 37 },	/* 0000 1101 0101 */
209    { 12, 0xD6, 38 },	/* 0000 1101 0110 */
210    { 12, 0xD7, 39 },	/* 0000 1101 0111 */
211    { 12, 0x6C, 40 },	/* 0000 0110 1100 */
212    { 12, 0x6D, 41 },	/* 0000 0110 1101 */
213    { 12, 0xDA, 42 },	/* 0000 1101 1010 */
214    { 12, 0xDB, 43 },	/* 0000 1101 1011 */
215    { 12, 0x54, 44 },	/* 0000 0101 0100 */
216    { 12, 0x55, 45 },	/* 0000 0101 0101 */
217    { 12, 0x56, 46 },	/* 0000 0101 0110 */
218    { 12, 0x57, 47 },	/* 0000 0101 0111 */
219    { 12, 0x64, 48 },	/* 0000 0110 0100 */
220    { 12, 0x65, 49 },	/* 0000 0110 0101 */
221    { 12, 0x52, 50 },	/* 0000 0101 0010 */
222    { 12, 0x53, 51 },	/* 0000 0101 0011 */
223    { 12, 0x24, 52 },	/* 0000 0010 0100 */
224    { 12, 0x37, 53 },	/* 0000 0011 0111 */
225    { 12, 0x38, 54 },	/* 0000 0011 1000 */
226    { 12, 0x27, 55 },	/* 0000 0010 0111 */
227    { 12, 0x28, 56 },	/* 0000 0010 1000 */
228    { 12, 0x58, 57 },	/* 0000 0101 1000 */
229    { 12, 0x59, 58 },	/* 0000 0101 1001 */
230    { 12, 0x2B, 59 },	/* 0000 0010 1011 */
231    { 12, 0x2C, 60 },	/* 0000 0010 1100 */
232    { 12, 0x5A, 61 },	/* 0000 0101 1010 */
233    { 12, 0x66, 62 },	/* 0000 0110 0110 */
234    { 12, 0x67, 63 },	/* 0000 0110 0111 */
235    { 10, 0xF, 64 },	/* 0000 0011 11 */
236    { 12, 0xC8, 128 },	/* 0000 1100 1000 */
237    { 12, 0xC9, 192 },	/* 0000 1100 1001 */
238    { 12, 0x5B, 256 },	/* 0000 0101 1011 */
239    { 12, 0x33, 320 },	/* 0000 0011 0011 */
240    { 12, 0x34, 384 },	/* 0000 0011 0100 */
241    { 12, 0x35, 448 },	/* 0000 0011 0101 */
242    { 13, 0x6C, 512 },	/* 0000 0011 0110 0 */
243    { 13, 0x6D, 576 },	/* 0000 0011 0110 1 */
244    { 13, 0x4A, 640 },	/* 0000 0010 0101 0 */
245    { 13, 0x4B, 704 },	/* 0000 0010 0101 1 */
246    { 13, 0x4C, 768 },	/* 0000 0010 0110 0 */
247    { 13, 0x4D, 832 },	/* 0000 0010 0110 1 */
248    { 13, 0x72, 896 },	/* 0000 0011 1001 0 */
249    { 13, 0x73, 960 },	/* 0000 0011 1001 1 */
250    { 13, 0x74, 1024 },	/* 0000 0011 1010 0 */
251    { 13, 0x75, 1088 },	/* 0000 0011 1010 1 */
252    { 13, 0x76, 1152 },	/* 0000 0011 1011 0 */
253    { 13, 0x77, 1216 },	/* 0000 0011 1011 1 */
254    { 13, 0x52, 1280 },	/* 0000 0010 1001 0 */
255    { 13, 0x53, 1344 },	/* 0000 0010 1001 1 */
256    { 13, 0x54, 1408 },	/* 0000 0010 1010 0 */
257    { 13, 0x55, 1472 },	/* 0000 0010 1010 1 */
258    { 13, 0x5A, 1536 },	/* 0000 0010 1101 0 */
259    { 13, 0x5B, 1600 },	/* 0000 0010 1101 1 */
260    { 13, 0x64, 1664 },	/* 0000 0011 0010 0 */
261    { 13, 0x65, 1728 },	/* 0000 0011 0010 1 */
262    { 11, 0x8, 1792 },	/* 0000 0001 000 */
263    { 11, 0xC, 1856 },	/* 0000 0001 100 */
264    { 11, 0xD, 1920 },	/* 0000 0001 101 */
265    { 12, 0x12, 1984 },	/* 0000 0001 0010 */
266    { 12, 0x13, 2048 },	/* 0000 0001 0011 */
267    { 12, 0x14, 2112 },	/* 0000 0001 0100 */
268    { 12, 0x15, 2176 },	/* 0000 0001 0101 */
269    { 12, 0x16, 2240 },	/* 0000 0001 0110 */
270    { 12, 0x17, 2304 },	/* 0000 0001 0111 */
271    { 12, 0x1C, 2368 },	/* 0000 0001 1100 */
272    { 12, 0x1D, 2432 },	/* 0000 0001 1101 */
273    { 12, 0x1E, 2496 },	/* 0000 0001 1110 */
274    { 12, 0x1F, 2560 },	/* 0000 0001 1111 */
275    { 12, 0x1, G3CODE_EOL },	/* 0000 0000 0001 */
276    { 9, 0x1, G3CODE_INVALID },	/* 0000 0000 1 */
277    { 10, 0x1, G3CODE_INVALID },	/* 0000 0000 01 */
278    { 11, 0x1, G3CODE_INVALID },	/* 0000 0000 001 */
279    { 12, 0x0, G3CODE_INVALID },	/* 0000 0000 0000 */
280};
281#else
282extern	const tableentry TIFFFaxWhiteCodes[];
283extern	const tableentry TIFFFaxBlackCodes[];
284#endif
285#endif /* _T4_ */
286/*
287 * Local Variables:
288 * mode: c
289 * c-basic-offset: 8
290 * fill-column: 78
291 * End:
292 */
293