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72 lines
2.5 KiB
72 lines
2.5 KiB
/* $Header: /cvsroot/VTK/VTK/Utilities/vtktiff/mkspans.c,v 1.1 2004/04/28 15:49:22 king Exp $ */
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/*
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* Copyright (c) 1991-1997 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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#include "tiffcomp.h"
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/*
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* Hack program to construct tables used to find
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* runs of zeros and ones in Group 3 Fax encoding.
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*/
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dumparray(name, runs)
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char *name;
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unsigned char runs[256];
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{
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register int i;
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register char *sep;
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printf("static u_char %s[256] = {\n", name);
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sep = " ";
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for (i = 0; i < 256; i++) {
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printf("%s%d", sep, runs[i]);
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if (((i + 1) % 16) == 0) {
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printf(", /* 0x%02x - 0x%02x */\n", i-15, i);
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sep = " ";
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} else
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sep = ", ";
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}
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printf("\n};\n");
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}
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main()
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{
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unsigned char runs[2][256];
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memset(runs[0], 0, 256*sizeof (char));
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memset(runs[1], 0, 256*sizeof (char));
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{ register int run, runlen, i;
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runlen = 1;
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for (run = 0x80; run != 0xff; run = (run>>1)|0x80) {
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for (i = run-1; i >= 0; i--) {
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runs[1][run|i] = runlen;
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runs[0][(~(run|i)) & 0xff] = runlen;
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}
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runlen++;
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}
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runs[1][0xff] = runs[0][0] = 8;
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}
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dumparray("bruns", runs[0]);
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dumparray("wruns", runs[1]);
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}
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