317 lines
8.5 KiB
C
317 lines
8.5 KiB
C
/* $Id: sgisv.c,v 1.6 2010-03-10 18:56:49 bfriesen Exp $ */
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/*
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* Copyright (c) 1990-1997 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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <gl.h>
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#include <ctype.h>
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#include "tiffio.h"
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typedef unsigned char unsigned char;
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typedef unsigned long uint32;
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#define streq(a,b) (strcmp(a,b) == 0)
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#define strneq(a,b,n) (strncmp(a,b,n) == 0)
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uint32 rowsperstrip = (uint32) -1;
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uint16 compression = COMPRESSION_PACKBITS;
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uint16 config = PLANARCONFIG_CONTIG;
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uint16 predictor = 0;
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int xmaxscreen;
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int ymaxscreen;
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uint16 photometric = PHOTOMETRIC_RGB;
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int jpegcolormode = JPEGCOLORMODE_RGB;
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int quality = 75; /* JPEG quality */
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static void usage(void);
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static void tiffsv(char*, int, int, int, int);
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int
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main(int argc, char* argv[])
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{
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int c;
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extern int optind;
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extern char* optarg;
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while ((c = getopt(argc, argv, "c:p:r:")) != -1)
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switch (c) {
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case 'b': /* save as b&w */
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photometric = PHOTOMETRIC_MINISBLACK;
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break;
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case 'c': /* compression scheme */
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if (streq(optarg, "none"))
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compression = COMPRESSION_NONE;
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else if (streq(optarg, "packbits"))
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compression = COMPRESSION_PACKBITS;
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else if (strneq(optarg, "jpeg", 4)) {
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char* cp = strchr(optarg, ':');
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if (cp && isdigit(cp[1]))
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quality = atoi(cp+1);
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if (cp && strchr(cp, 'r'))
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jpegcolormode = JPEGCOLORMODE_RAW;
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compression = COMPRESSION_JPEG;
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} else if (strneq(optarg, "lzw", 3)) {
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char* cp = strchr(optarg, ':');
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if (cp)
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predictor = atoi(cp+1);
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compression = COMPRESSION_LZW;
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} else
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usage();
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break;
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case 'p': /* planar configuration */
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if (streq(optarg, "separate"))
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config = PLANARCONFIG_SEPARATE;
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else if (streq(optarg, "contig"))
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config = PLANARCONFIG_CONTIG;
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else
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usage();
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break;
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case 'r': /* rows/strip */
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rowsperstrip = atoi(optarg);
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break;
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case '?':
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usage();
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/*NOTREACHED*/
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}
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if (argc - optind != 1 && argc - optind != 5)
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usage();
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xmaxscreen = getgdesc(GD_XPMAX)-1;
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ymaxscreen = getgdesc(GD_YPMAX)-1;
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foreground();
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noport();
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winopen("tiffsv");
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if (argc - optind == 5)
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tiffsv(argv[optind],
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atoi(argv[optind+1]), atoi(argv[optind+2]),
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atoi(argv[optind+3]), atoi(argv[optind+4]));
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else
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tiffsv(argv[optind], 0, xmaxscreen, 0, ymaxscreen);
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return (0);
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}
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char* stuff[] = {
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"usage: tiffsv [options] outimage.tif [x1 x2 y1 y2] [-b]",
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"where options are:",
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" -p contig pack samples contiguously (e.g. RGBRGB...)",
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" -p separate store samples separately (e.g. RRR...GGG...BBB...)",
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"",
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" -r # make each strip have no more than # rows",
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"",
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" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding",
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" -c jpeg[:opts]compress output with JPEG encoding",
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" -c packbits compress output with packbits encoding",
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" -c none use no compression algorithm on output",
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"",
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"JPEG options:",
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" # set compression quality level (0-100, default 75)",
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" r output color image as RGB rather than YCbCr",
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"",
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"LZW options:",
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" # set predictor value for Lempel-Ziv & Welch encoding",
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"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing",
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NULL
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};
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static void
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usage(void)
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{
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char buf[BUFSIZ];
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int i;
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setbuf(stderr, buf);
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for (i = 0; stuff[i] != NULL; i++)
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fprintf(stderr, "%s\n", stuff[i]);
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exit(-1);
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}
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static void
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svRGBSeparate(TIFF* tif, uint32* ss, int xsize, int ysize)
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{
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tsize_t stripsize = TIFFStripSize(tif);
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unsigned char *rbuf = (unsigned char *)_TIFFmalloc(3*stripsize);
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unsigned char *gbuf = rbuf + stripsize;
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unsigned char *bbuf = gbuf + stripsize;
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register int y;
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for (y = 0; y <= ysize; y += rowsperstrip) {
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unsigned char *rp, *gp, *bp;
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register int x;
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register uint32 n;
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n = rowsperstrip;
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if (n > ysize-y+1)
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n = ysize-y+1;
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rp = rbuf; gp = gbuf; bp = bbuf;
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do {
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for (x = 0; x <= xsize; x++) {
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uint32 v = ss[x];
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rp[x] = v;
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gp[x] = v >> 8;
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bp[x] = v >> 16;
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}
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rp += xsize+1, gp += xsize+1, bp += xsize+1;
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ss += xsize+1;
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} while (--n);
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if (TIFFWriteEncodedStrip(tif, TIFFComputeStrip(tif,y,0),
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rbuf, stripsize) < 0)
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break;
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if (TIFFWriteEncodedStrip(tif, TIFFComputeStrip(tif,y,1),
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gbuf, stripsize) < 0)
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break;
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if (TIFFWriteEncodedStrip(tif, TIFFComputeStrip(tif,y,2),
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bbuf, stripsize) < 0)
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break;
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}
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_TIFFfree(rbuf);
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}
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static void
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svRGBContig(TIFF* tif, uint32* ss, int xsize, int ysize)
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{
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register int x, y;
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tsize_t stripsize = TIFFStripSize(tif);
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unsigned char *strip = (unsigned char *)_TIFFmalloc(stripsize);
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for (y = 0; y <= ysize; y += rowsperstrip) {
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register unsigned char *pp = strip;
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register uint32 n;
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n = rowsperstrip;
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if (n > ysize-y+1)
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n = ysize-y+1;
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do {
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for (x = 0; x <= xsize; x++) {
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uint32 v = ss[x];
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pp[0] = v;
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pp[1] = v >> 8;
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pp[2] = v >> 16;
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pp += 3;
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}
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ss += xsize+1;
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} while (--n);
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if (TIFFWriteEncodedStrip(tif, TIFFComputeStrip(tif,y,0),
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strip, stripsize) < 0)
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break;
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}
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_TIFFfree(strip);
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}
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#undef RED
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#undef GREEN
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#undef BLUE
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#define CVT(x) (((x)*255)/100)
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#define RED CVT(28) /* 28% */
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#define GREEN CVT(59) /* 59% */
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#define BLUE CVT(11) /* 11% */
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static void
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svGrey(TIFF* tif, uint32* ss, int xsize, int ysize)
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{
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register int x, y;
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unsigned char *buf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(tif));
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for (y = 0; y <= ysize; y++) {
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for (x = 0; x <= xsize; x++) {
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unsigned char *cp = (unsigned char *)&ss[x];
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buf[x] = (RED*cp[3] + GREEN*cp[2] + BLUE*cp[1]) >> 8;
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}
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if (TIFFWriteScanline(tif, buf, (uint32) y, 0) < 0)
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break;
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ss += xsize+1;
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}
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_TIFFfree(buf);
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}
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#define MIN(a,b) ((a)<(b)?(a):(b))
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#define ABS(x) ((x)<0?-(x):(x))
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static void
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tiffsv(char* name, int x1, int x2, int y1, int y2)
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{
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TIFF *tif;
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int xsize, ysize;
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int xorg, yorg;
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uint32 *scrbuf;
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xorg = MIN(x1,x2);
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yorg = MIN(y1,y2);
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if (xorg<0)
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xorg = 0;
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if (yorg<0)
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yorg = 0;
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xsize = ABS(x2-x1);
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ysize = ABS(y2-y1);
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if (xorg+xsize > xmaxscreen)
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xsize = xmaxscreen-xorg;
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if (yorg+ysize > ymaxscreen)
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ysize = ymaxscreen-yorg;
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tif = TIFFOpen(name, "w");
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TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, (uint32) (xsize+1));
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TIFFSetField(tif, TIFFTAG_IMAGELENGTH, (uint32) (ysize+1));
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TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8);
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TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL,
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photometric == PHOTOMETRIC_RGB ? 3 : 1);
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TIFFSetField(tif, TIFFTAG_PLANARCONFIG, config);
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TIFFSetField(tif, TIFFTAG_COMPRESSION, compression);
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switch (compression) {
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case COMPRESSION_JPEG:
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if (photometric == PHOTOMETRIC_RGB && jpegcolormode == JPEGCOLORMODE_RGB)
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photometric = PHOTOMETRIC_YCBCR;
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TIFFSetField(tif, TIFFTAG_JPEGQUALITY, quality);
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TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, jpegcolormode);
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break;
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case COMPRESSION_LZW:
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if (predictor != 0)
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TIFFSetField(tif, TIFFTAG_PREDICTOR, predictor);
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break;
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}
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TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, photometric);
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TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_BOTLEFT);
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rowsperstrip = TIFFDefaultStripSize(tif, rowsperstrip);
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TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
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scrbuf = (uint32 *)_TIFFmalloc((xsize+1)*(ysize+1)*sizeof (uint32));
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readdisplay(xorg, yorg, xorg+xsize, yorg+ysize, scrbuf, RD_FREEZE);
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if (photometric == PHOTOMETRIC_RGB) {
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if (config == PLANARCONFIG_SEPARATE)
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svRGBSeparate(tif, scrbuf, xsize, ysize);
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else
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svRGBContig(tif, scrbuf, xsize, ysize);
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} else
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svGrey(tif, scrbuf, xsize, ysize);
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(void) TIFFClose(tif);
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_TIFFfree((char *)scrbuf);
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}
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/*
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* Local Variables:
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* mode: c
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* c-basic-offset: 8
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* fill-column: 78
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* End:
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*/
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