/* $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 __APPLE__ #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 );