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/* $Header: /usr/people/sam/tiff/libtiff/RCS/mkspans.c,v 1.10 1996/01/10 19:32:53 sam Exp $ */
/*
* Copyright (c) 1991-1996 Sam Leffler
* Copyright (c) 1991-1996 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.
*/
#include "tiffcomp.h"
/*
* Hack program to construct tables used to find
* runs of zeros and ones in Group 3 Fax encoding.
*/
dumparray(name, runs)
char *name;
unsigned char runs[256];
{
register int i;
register char *sep;
printf("static u_char %s[256] = {\n", name);
sep = " ";
for (i = 0; i < 256; i++) {
printf("%s%d", sep, runs[i]);
if (((i + 1) % 16) == 0) {
printf(", /* 0x%02x - 0x%02x */\n", i-15, i);
sep = " ";
} else
sep = ", ";
}
printf("\n};\n");
}
main()
{
unsigned char runs[2][256];
memset(runs[0], 0, 256*sizeof (char));
memset(runs[1], 0, 256*sizeof (char));
{ register int run, runlen, i;
runlen = 1;
for (run = 0x80; run != 0xff; run = (run>>1)|0x80) {
for (i = run-1; i >= 0; i--) {
runs[1][run|i] = runlen;
runs[0][(~(run|i)) & 0xff] = runlen;
}
runlen++;
}
runs[1][0xff] = runs[0][0] = 8;
}
dumparray("bruns", runs[0]);
dumparray("wruns", runs[1]);
}
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