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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 );