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/* $Xorg: lbxfax.h,v 1.3 2000/08/17 19:46:41 cpqbld Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1991, 1992 Sam Leffler
* Copyright (c) 1991, 1992 Silicon Graphics, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that (i) the above copyright notices and this permission notice appear in
* all copies of the software and related documentation, and (ii) the names of
* Sam Leffler and Silicon Graphics may not be used in any advertising or
* publicity relating to the software without the specific, prior written
* permission of Sam Leffler and Silicon Graphics.
*
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
/* $XFree86$ */
/*
* This header file contains various constants and tables needed
* for FAX G42D compression.
*/
typedef struct tableentry {
unsigned short length; /* bit length of g3 code */
unsigned short code; /* g3 code */
short runlen; /* run length in bits */
} tableentry;
#define EOL 0x001 /* EOL code value - 0000 0000 0000 1 */
/* status values returned instead of a run length */
#define G3CODE_INVALID -1
#define G3CODE_INCOMP -2
#define G3CODE_EOL -3
#define G3CODE_EOF -4
#define ROUNDUP8(x) ((x + 7) >> 3)
#ifdef __DARWIN__
#ifndef TIFFaxWhiteCodes
#define TIFFFaxWhiteCodes Darwin_X_TIFFFaxWhiteCodes
#define TIFFFaxBlackCodes Darwin_X_TIFFFaxBlackCodes
#endif
#endif
extern tableentry TIFFFaxWhiteCodes[];
extern tableentry TIFFFaxBlackCodes[];
/* misc.c */
extern int LbxImageFindDiff ( unsigned char *cp, int bs, int be, int color );
extern void LbxReverseBits ( unsigned char *cp, int n );
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