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290 lines
11 KiB
C
290 lines
11 KiB
C
/*
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* Copyright (c) 1988-1997 Sam Leffler
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* Copyright (c) 1991-1997 Silicon Graphics, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that (i) the above copyright notices and this permission notice appear in
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* all copies of the software and related documentation, and (ii) the names of
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* Sam Leffler and Silicon Graphics may not be used in any advertising or
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* publicity relating to the software without the specific, prior written
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* permission of Sam Leffler and Silicon Graphics.
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*
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* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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*
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* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#ifndef _T4_
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#define _T4_
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/*
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* CCITT T.4 1D Huffman runlength codes and
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* related definitions. Given the small sizes
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* of these tables it does not seem
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* worthwhile to make code & length 8 bits.
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*/
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typedef struct tableentry {
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unsigned short length; /* bit length of g3 code */
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unsigned short code; /* g3 code */
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short runlen; /* run length in bits */
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} tableentry;
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#define EOL 0x001 /* EOL code value - 0000 0000 0000 1 */
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/* status values returned instead of a run length */
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#define G3CODE_EOL -1 /* NB: ACT_EOL - ACT_WRUNT */
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#define G3CODE_INVALID -2 /* NB: ACT_INVALID - ACT_WRUNT */
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#define G3CODE_EOF -3 /* end of input data */
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#define G3CODE_INCOMP -4 /* incomplete run code */
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/*
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* Note that these tables are ordered such that the
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* index into the table is known to be either the
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* run length, or (run length / 64) + a fixed offset.
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*
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* NB: The G3CODE_INVALID entries are only used
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* during state generation (see mkg3states.c).
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*/
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#ifdef G3CODES
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const tableentry TIFFFaxWhiteCodes[] = {
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{ 8, 0x35, 0 }, /* 0011 0101 */
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{ 6, 0x7, 1 }, /* 0001 11 */
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{ 4, 0x7, 2 }, /* 0111 */
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{ 4, 0x8, 3 }, /* 1000 */
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{ 4, 0xB, 4 }, /* 1011 */
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{ 4, 0xC, 5 }, /* 1100 */
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{ 4, 0xE, 6 }, /* 1110 */
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{ 4, 0xF, 7 }, /* 1111 */
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{ 5, 0x13, 8 }, /* 1001 1 */
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{ 5, 0x14, 9 }, /* 1010 0 */
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{ 5, 0x7, 10 }, /* 0011 1 */
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{ 5, 0x8, 11 }, /* 0100 0 */
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{ 6, 0x8, 12 }, /* 0010 00 */
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{ 6, 0x3, 13 }, /* 0000 11 */
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{ 6, 0x34, 14 }, /* 1101 00 */
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{ 6, 0x35, 15 }, /* 1101 01 */
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{ 6, 0x2A, 16 }, /* 1010 10 */
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{ 6, 0x2B, 17 }, /* 1010 11 */
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{ 7, 0x27, 18 }, /* 0100 111 */
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{ 7, 0xC, 19 }, /* 0001 100 */
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{ 7, 0x8, 20 }, /* 0001 000 */
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{ 7, 0x17, 21 }, /* 0010 111 */
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{ 7, 0x3, 22 }, /* 0000 011 */
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{ 7, 0x4, 23 }, /* 0000 100 */
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{ 7, 0x28, 24 }, /* 0101 000 */
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{ 7, 0x2B, 25 }, /* 0101 011 */
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{ 7, 0x13, 26 }, /* 0010 011 */
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{ 7, 0x24, 27 }, /* 0100 100 */
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{ 7, 0x18, 28 }, /* 0011 000 */
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{ 8, 0x2, 29 }, /* 0000 0010 */
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{ 8, 0x3, 30 }, /* 0000 0011 */
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{ 8, 0x1A, 31 }, /* 0001 1010 */
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{ 8, 0x1B, 32 }, /* 0001 1011 */
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{ 8, 0x12, 33 }, /* 0001 0010 */
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{ 8, 0x13, 34 }, /* 0001 0011 */
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{ 8, 0x14, 35 }, /* 0001 0100 */
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{ 8, 0x15, 36 }, /* 0001 0101 */
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{ 8, 0x16, 37 }, /* 0001 0110 */
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{ 8, 0x17, 38 }, /* 0001 0111 */
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{ 8, 0x28, 39 }, /* 0010 1000 */
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{ 8, 0x29, 40 }, /* 0010 1001 */
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{ 8, 0x2A, 41 }, /* 0010 1010 */
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{ 8, 0x2B, 42 }, /* 0010 1011 */
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{ 8, 0x2C, 43 }, /* 0010 1100 */
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{ 8, 0x2D, 44 }, /* 0010 1101 */
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{ 8, 0x4, 45 }, /* 0000 0100 */
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{ 8, 0x5, 46 }, /* 0000 0101 */
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{ 8, 0xA, 47 }, /* 0000 1010 */
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{ 8, 0xB, 48 }, /* 0000 1011 */
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{ 8, 0x52, 49 }, /* 0101 0010 */
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{ 8, 0x53, 50 }, /* 0101 0011 */
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{ 8, 0x54, 51 }, /* 0101 0100 */
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{ 8, 0x55, 52 }, /* 0101 0101 */
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{ 8, 0x24, 53 }, /* 0010 0100 */
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{ 8, 0x25, 54 }, /* 0010 0101 */
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{ 8, 0x58, 55 }, /* 0101 1000 */
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{ 8, 0x59, 56 }, /* 0101 1001 */
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{ 8, 0x5A, 57 }, /* 0101 1010 */
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{ 8, 0x5B, 58 }, /* 0101 1011 */
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{ 8, 0x4A, 59 }, /* 0100 1010 */
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{ 8, 0x4B, 60 }, /* 0100 1011 */
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{ 8, 0x32, 61 }, /* 0011 0010 */
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{ 8, 0x33, 62 }, /* 0011 0011 */
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{ 8, 0x34, 63 }, /* 0011 0100 */
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{ 5, 0x1B, 64 }, /* 1101 1 */
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{ 5, 0x12, 128 }, /* 1001 0 */
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{ 6, 0x17, 192 }, /* 0101 11 */
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{ 7, 0x37, 256 }, /* 0110 111 */
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{ 8, 0x36, 320 }, /* 0011 0110 */
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{ 8, 0x37, 384 }, /* 0011 0111 */
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{ 8, 0x64, 448 }, /* 0110 0100 */
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{ 8, 0x65, 512 }, /* 0110 0101 */
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{ 8, 0x68, 576 }, /* 0110 1000 */
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{ 8, 0x67, 640 }, /* 0110 0111 */
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{ 9, 0xCC, 704 }, /* 0110 0110 0 */
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{ 9, 0xCD, 768 }, /* 0110 0110 1 */
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{ 9, 0xD2, 832 }, /* 0110 1001 0 */
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{ 9, 0xD3, 896 }, /* 0110 1001 1 */
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{ 9, 0xD4, 960 }, /* 0110 1010 0 */
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{ 9, 0xD5, 1024 }, /* 0110 1010 1 */
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{ 9, 0xD6, 1088 }, /* 0110 1011 0 */
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{ 9, 0xD7, 1152 }, /* 0110 1011 1 */
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{ 9, 0xD8, 1216 }, /* 0110 1100 0 */
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{ 9, 0xD9, 1280 }, /* 0110 1100 1 */
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{ 9, 0xDA, 1344 }, /* 0110 1101 0 */
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{ 9, 0xDB, 1408 }, /* 0110 1101 1 */
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{ 9, 0x98, 1472 }, /* 0100 1100 0 */
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{ 9, 0x99, 1536 }, /* 0100 1100 1 */
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{ 9, 0x9A, 1600 }, /* 0100 1101 0 */
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{ 6, 0x18, 1664 }, /* 0110 00 */
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{ 9, 0x9B, 1728 }, /* 0100 1101 1 */
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{ 11, 0x8, 1792 }, /* 0000 0001 000 */
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{ 11, 0xC, 1856 }, /* 0000 0001 100 */
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{ 11, 0xD, 1920 }, /* 0000 0001 101 */
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{ 12, 0x12, 1984 }, /* 0000 0001 0010 */
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{ 12, 0x13, 2048 }, /* 0000 0001 0011 */
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{ 12, 0x14, 2112 }, /* 0000 0001 0100 */
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{ 12, 0x15, 2176 }, /* 0000 0001 0101 */
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{ 12, 0x16, 2240 }, /* 0000 0001 0110 */
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{ 12, 0x17, 2304 }, /* 0000 0001 0111 */
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{ 12, 0x1C, 2368 }, /* 0000 0001 1100 */
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{ 12, 0x1D, 2432 }, /* 0000 0001 1101 */
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{ 12, 0x1E, 2496 }, /* 0000 0001 1110 */
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{ 12, 0x1F, 2560 }, /* 0000 0001 1111 */
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{ 12, 0x1, G3CODE_EOL }, /* 0000 0000 0001 */
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{ 9, 0x1, G3CODE_INVALID }, /* 0000 0000 1 */
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{ 10, 0x1, G3CODE_INVALID }, /* 0000 0000 01 */
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{ 11, 0x1, G3CODE_INVALID }, /* 0000 0000 001 */
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{ 12, 0x0, G3CODE_INVALID }, /* 0000 0000 0000 */
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};
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const tableentry TIFFFaxBlackCodes[] = {
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{ 10, 0x37, 0 }, /* 0000 1101 11 */
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{ 3, 0x2, 1 }, /* 010 */
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{ 2, 0x3, 2 }, /* 11 */
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{ 2, 0x2, 3 }, /* 10 */
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{ 3, 0x3, 4 }, /* 011 */
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{ 4, 0x3, 5 }, /* 0011 */
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{ 4, 0x2, 6 }, /* 0010 */
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{ 5, 0x3, 7 }, /* 0001 1 */
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{ 6, 0x5, 8 }, /* 0001 01 */
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{ 6, 0x4, 9 }, /* 0001 00 */
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{ 7, 0x4, 10 }, /* 0000 100 */
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{ 7, 0x5, 11 }, /* 0000 101 */
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{ 7, 0x7, 12 }, /* 0000 111 */
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{ 8, 0x4, 13 }, /* 0000 0100 */
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{ 8, 0x7, 14 }, /* 0000 0111 */
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{ 9, 0x18, 15 }, /* 0000 1100 0 */
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{ 10, 0x17, 16 }, /* 0000 0101 11 */
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{ 10, 0x18, 17 }, /* 0000 0110 00 */
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{ 10, 0x8, 18 }, /* 0000 0010 00 */
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{ 11, 0x67, 19 }, /* 0000 1100 111 */
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{ 11, 0x68, 20 }, /* 0000 1101 000 */
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{ 11, 0x6C, 21 }, /* 0000 1101 100 */
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{ 11, 0x37, 22 }, /* 0000 0110 111 */
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{ 11, 0x28, 23 }, /* 0000 0101 000 */
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{ 11, 0x17, 24 }, /* 0000 0010 111 */
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{ 11, 0x18, 25 }, /* 0000 0011 000 */
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{ 12, 0xCA, 26 }, /* 0000 1100 1010 */
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{ 12, 0xCB, 27 }, /* 0000 1100 1011 */
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{ 12, 0xCC, 28 }, /* 0000 1100 1100 */
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{ 12, 0xCD, 29 }, /* 0000 1100 1101 */
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{ 12, 0x68, 30 }, /* 0000 0110 1000 */
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{ 12, 0x69, 31 }, /* 0000 0110 1001 */
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{ 12, 0x6A, 32 }, /* 0000 0110 1010 */
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{ 12, 0x6B, 33 }, /* 0000 0110 1011 */
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{ 12, 0xD2, 34 }, /* 0000 1101 0010 */
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{ 12, 0xD3, 35 }, /* 0000 1101 0011 */
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{ 12, 0xD4, 36 }, /* 0000 1101 0100 */
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{ 12, 0xD5, 37 }, /* 0000 1101 0101 */
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{ 12, 0xD6, 38 }, /* 0000 1101 0110 */
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{ 12, 0xD7, 39 }, /* 0000 1101 0111 */
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{ 12, 0x6C, 40 }, /* 0000 0110 1100 */
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{ 12, 0x6D, 41 }, /* 0000 0110 1101 */
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{ 12, 0xDA, 42 }, /* 0000 1101 1010 */
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{ 12, 0xDB, 43 }, /* 0000 1101 1011 */
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{ 12, 0x54, 44 }, /* 0000 0101 0100 */
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{ 12, 0x55, 45 }, /* 0000 0101 0101 */
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{ 12, 0x56, 46 }, /* 0000 0101 0110 */
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{ 12, 0x57, 47 }, /* 0000 0101 0111 */
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{ 12, 0x64, 48 }, /* 0000 0110 0100 */
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{ 12, 0x65, 49 }, /* 0000 0110 0101 */
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{ 12, 0x52, 50 }, /* 0000 0101 0010 */
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{ 12, 0x53, 51 }, /* 0000 0101 0011 */
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{ 12, 0x24, 52 }, /* 0000 0010 0100 */
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{ 12, 0x37, 53 }, /* 0000 0011 0111 */
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{ 12, 0x38, 54 }, /* 0000 0011 1000 */
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{ 12, 0x27, 55 }, /* 0000 0010 0111 */
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{ 12, 0x28, 56 }, /* 0000 0010 1000 */
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{ 12, 0x58, 57 }, /* 0000 0101 1000 */
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{ 12, 0x59, 58 }, /* 0000 0101 1001 */
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{ 12, 0x2B, 59 }, /* 0000 0010 1011 */
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{ 12, 0x2C, 60 }, /* 0000 0010 1100 */
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{ 12, 0x5A, 61 }, /* 0000 0101 1010 */
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{ 12, 0x66, 62 }, /* 0000 0110 0110 */
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{ 12, 0x67, 63 }, /* 0000 0110 0111 */
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{ 10, 0xF, 64 }, /* 0000 0011 11 */
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{ 12, 0xC8, 128 }, /* 0000 1100 1000 */
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{ 12, 0xC9, 192 }, /* 0000 1100 1001 */
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{ 12, 0x5B, 256 }, /* 0000 0101 1011 */
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{ 12, 0x33, 320 }, /* 0000 0011 0011 */
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{ 12, 0x34, 384 }, /* 0000 0011 0100 */
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{ 12, 0x35, 448 }, /* 0000 0011 0101 */
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{ 13, 0x6C, 512 }, /* 0000 0011 0110 0 */
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{ 13, 0x6D, 576 }, /* 0000 0011 0110 1 */
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{ 13, 0x4A, 640 }, /* 0000 0010 0101 0 */
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{ 13, 0x4B, 704 }, /* 0000 0010 0101 1 */
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{ 13, 0x4C, 768 }, /* 0000 0010 0110 0 */
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{ 13, 0x4D, 832 }, /* 0000 0010 0110 1 */
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{ 13, 0x72, 896 }, /* 0000 0011 1001 0 */
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{ 13, 0x73, 960 }, /* 0000 0011 1001 1 */
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{ 13, 0x74, 1024 }, /* 0000 0011 1010 0 */
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{ 13, 0x75, 1088 }, /* 0000 0011 1010 1 */
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{ 13, 0x76, 1152 }, /* 0000 0011 1011 0 */
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{ 13, 0x77, 1216 }, /* 0000 0011 1011 1 */
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{ 13, 0x52, 1280 }, /* 0000 0010 1001 0 */
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{ 13, 0x53, 1344 }, /* 0000 0010 1001 1 */
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{ 13, 0x54, 1408 }, /* 0000 0010 1010 0 */
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{ 13, 0x55, 1472 }, /* 0000 0010 1010 1 */
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{ 13, 0x5A, 1536 }, /* 0000 0010 1101 0 */
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{ 13, 0x5B, 1600 }, /* 0000 0010 1101 1 */
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{ 13, 0x64, 1664 }, /* 0000 0011 0010 0 */
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{ 13, 0x65, 1728 }, /* 0000 0011 0010 1 */
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{ 11, 0x8, 1792 }, /* 0000 0001 000 */
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{ 11, 0xC, 1856 }, /* 0000 0001 100 */
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{ 11, 0xD, 1920 }, /* 0000 0001 101 */
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{ 12, 0x12, 1984 }, /* 0000 0001 0010 */
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{ 12, 0x13, 2048 }, /* 0000 0001 0011 */
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{ 12, 0x14, 2112 }, /* 0000 0001 0100 */
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{ 12, 0x15, 2176 }, /* 0000 0001 0101 */
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{ 12, 0x16, 2240 }, /* 0000 0001 0110 */
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{ 12, 0x17, 2304 }, /* 0000 0001 0111 */
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{ 12, 0x1C, 2368 }, /* 0000 0001 1100 */
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{ 12, 0x1D, 2432 }, /* 0000 0001 1101 */
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{ 12, 0x1E, 2496 }, /* 0000 0001 1110 */
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{ 12, 0x1F, 2560 }, /* 0000 0001 1111 */
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{ 12, 0x1, G3CODE_EOL }, /* 0000 0000 0001 */
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{ 9, 0x1, G3CODE_INVALID }, /* 0000 0000 1 */
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{ 10, 0x1, G3CODE_INVALID }, /* 0000 0000 01 */
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{ 11, 0x1, G3CODE_INVALID }, /* 0000 0000 001 */
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{ 12, 0x0, G3CODE_INVALID }, /* 0000 0000 0000 */
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};
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#else
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extern const tableentry TIFFFaxWhiteCodes[];
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extern const tableentry TIFFFaxBlackCodes[];
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#endif
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#endif /* _T4_ */
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/*
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* Local Variables:
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* mode: c
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* c-basic-offset: 8
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* fill-column: 78
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* End:
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*/
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