545 lines
15 KiB
C
545 lines
15 KiB
C
/*
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* Copyright (c) 1988-1997 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 "tif_config.h"
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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 <ctype.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifdef NEED_LIBPORT
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# include "libport.h"
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#endif
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#include "tiffio.h"
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#include "tiffiop.h"
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#ifndef EXIT_SUCCESS
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#define EXIT_SUCCESS 0
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#endif
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#ifndef EXIT_FAILURE
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#define EXIT_FAILURE 1
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#endif
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/* x% weighting -> fraction of full color */
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#define PCT(x) (((x)*256+50)/100)
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int RED = PCT(30); /* 30% */
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int GREEN = PCT(59); /* 59% */
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int BLUE = PCT(11); /* 11% */
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static void usage(int code);
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static int processCompressOptions(char*);
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static void
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compresscontig(unsigned char* out, unsigned char* rgb, uint32 n)
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{
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register int v, red = RED, green = GREEN, blue = BLUE;
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while (n-- > 0) {
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v = red*(*rgb++);
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v += green*(*rgb++);
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v += blue*(*rgb++);
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*out++ = v>>8;
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}
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}
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static void
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compresssep(unsigned char* out,
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unsigned char* r, unsigned char* g, unsigned char* b, uint32 n)
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{
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register uint32 red = RED, green = GREEN, blue = BLUE;
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while (n-- > 0)
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*out++ = (unsigned char)
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((red*(*r++) + green*(*g++) + blue*(*b++)) >> 8);
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}
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static int
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checkcmap(TIFF* tif, int n, uint16* r, uint16* g, uint16* b)
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{
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while (n-- > 0)
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if (*r++ >= 256 || *g++ >= 256 || *b++ >= 256)
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return (16);
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TIFFWarning(TIFFFileName(tif), "Assuming 8-bit colormap");
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return (8);
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}
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static void
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compresspalette(unsigned char* out, unsigned char* data, uint32 n, uint16* rmap, uint16* gmap, uint16* bmap)
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{
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register int v, red = RED, green = GREEN, blue = BLUE;
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while (n-- > 0) {
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unsigned int ix = *data++;
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v = red*rmap[ix];
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v += green*gmap[ix];
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v += blue*bmap[ix];
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*out++ = v>>8;
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}
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}
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static uint16 compression = (uint16) -1;
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static uint16 predictor = 0;
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static int jpegcolormode = JPEGCOLORMODE_RGB;
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static int quality = 75; /* JPEG quality */
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static void cpTags(TIFF* in, TIFF* out);
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int
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main(int argc, char* argv[])
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{
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uint32 rowsperstrip = (uint32) -1;
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TIFF *in, *out;
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uint32 w, h;
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uint16 samplesperpixel;
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uint16 bitspersample;
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uint16 config;
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uint16 photometric;
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uint16* red;
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uint16* green;
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uint16* blue;
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tsize_t rowsize;
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register uint32 row;
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register tsample_t s;
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unsigned char *inbuf, *outbuf;
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char thing[1024];
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int c;
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#if !HAVE_DECL_OPTARG
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extern int optind;
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extern char *optarg;
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#endif
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in = (TIFF *) NULL;
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out = (TIFF *) NULL;
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inbuf = (unsigned char *) NULL;
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outbuf = (unsigned char *) NULL;
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while ((c = getopt(argc, argv, "c:r:R:G:B:h")) != -1)
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switch (c) {
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case 'c': /* compression scheme */
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if (!processCompressOptions(optarg))
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usage(EXIT_FAILURE);
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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 'R':
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RED = PCT(atoi(optarg));
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break;
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case 'G':
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GREEN = PCT(atoi(optarg));
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break;
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case 'B':
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BLUE = PCT(atoi(optarg));
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break;
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case 'h':
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usage(EXIT_SUCCESS);
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case '?':
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usage(EXIT_FAILURE);
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/*NOTREACHED*/
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}
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if (argc - optind < 2)
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usage(EXIT_FAILURE);
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in = TIFFOpen(argv[optind], "r");
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if (in == NULL)
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return (EXIT_FAILURE);
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photometric = 0;
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TIFFGetField(in, TIFFTAG_PHOTOMETRIC, &photometric);
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if (photometric != PHOTOMETRIC_RGB && photometric != PHOTOMETRIC_PALETTE ) {
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fprintf(stderr,
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"%s: Bad photometric; can only handle RGB and Palette images.\n",
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argv[optind]);
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goto tiff2bw_error;
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}
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TIFFGetField(in, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel);
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if (samplesperpixel != 1 && samplesperpixel != 3) {
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fprintf(stderr, "%s: Bad samples/pixel %u.\n",
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argv[optind], samplesperpixel);
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goto tiff2bw_error;
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}
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if( photometric == PHOTOMETRIC_RGB && samplesperpixel != 3) {
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fprintf(stderr, "%s: Bad samples/pixel %u for PHOTOMETRIC_RGB.\n",
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argv[optind], samplesperpixel);
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goto tiff2bw_error;
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}
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TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bitspersample);
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if (bitspersample != 8) {
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fprintf(stderr,
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" %s: Sorry, only handle 8-bit samples.\n", argv[optind]);
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goto tiff2bw_error;
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}
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TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &w);
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TIFFGetField(in, TIFFTAG_IMAGELENGTH, &h);
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TIFFGetField(in, TIFFTAG_PLANARCONFIG, &config);
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out = TIFFOpen(argv[optind+1], "w");
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if (out == NULL)
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{
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goto tiff2bw_error;
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}
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TIFFSetField(out, TIFFTAG_IMAGEWIDTH, w);
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TIFFSetField(out, TIFFTAG_IMAGELENGTH, h);
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TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 8);
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TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 1);
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TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
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cpTags(in, out);
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if (compression != (uint16) -1) {
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TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
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switch (compression) {
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case COMPRESSION_JPEG:
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TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality);
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TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode);
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break;
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case COMPRESSION_LZW:
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case COMPRESSION_DEFLATE:
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if (predictor != 0)
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TIFFSetField(out, TIFFTAG_PREDICTOR, predictor);
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break;
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}
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}
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TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);
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snprintf(thing, sizeof(thing), "B&W version of %s", argv[optind]);
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TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, thing);
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TIFFSetField(out, TIFFTAG_SOFTWARE, "tiff2bw");
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outbuf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(out));
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if( !outbuf )
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{
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fprintf(stderr, "Out of memory\n");
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goto tiff2bw_error;
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}
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TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
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TIFFDefaultStripSize(out, rowsperstrip));
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#define pack(a,b) ((a)<<8 | (b))
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switch (pack(photometric, config)) {
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case pack(PHOTOMETRIC_PALETTE, PLANARCONFIG_CONTIG):
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case pack(PHOTOMETRIC_PALETTE, PLANARCONFIG_SEPARATE):
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TIFFGetField(in, TIFFTAG_COLORMAP, &red, &green, &blue);
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/*
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* Convert 16-bit colormap to 8-bit (unless it looks
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* like an old-style 8-bit colormap).
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*/
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if (checkcmap(in, 1<<bitspersample, red, green, blue) == 16) {
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int i;
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#define CVT(x) (((x) * 255L) / ((1L<<16)-1))
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for (i = (1<<bitspersample)-1; i >= 0; i--) {
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red[i] = CVT(red[i]);
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green[i] = CVT(green[i]);
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blue[i] = CVT(blue[i]);
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}
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#undef CVT
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}
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inbuf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in));
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if( !inbuf )
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{
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fprintf(stderr, "Out of memory\n");
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goto tiff2bw_error;
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}
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for (row = 0; row < h; row++) {
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if (TIFFReadScanline(in, inbuf, row, 0) < 0)
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break;
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compresspalette(outbuf, inbuf, w, red, green, blue);
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if (TIFFWriteScanline(out, outbuf, row, 0) < 0)
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break;
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}
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break;
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case pack(PHOTOMETRIC_RGB, PLANARCONFIG_CONTIG):
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inbuf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in));
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if( !inbuf )
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{
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fprintf(stderr, "Out of memory\n");
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goto tiff2bw_error;
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}
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for (row = 0; row < h; row++) {
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if (TIFFReadScanline(in, inbuf, row, 0) < 0)
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break;
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compresscontig(outbuf, inbuf, w);
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if (TIFFWriteScanline(out, outbuf, row, 0) < 0)
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break;
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}
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break;
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case pack(PHOTOMETRIC_RGB, PLANARCONFIG_SEPARATE):
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{
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tmsize_t inbufsize;
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rowsize = TIFFScanlineSize(in);
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inbufsize = TIFFSafeMultiply(tmsize_t, 3, rowsize);
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inbuf = (unsigned char *)_TIFFmalloc(inbufsize);
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if( !inbuf )
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{
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fprintf(stderr, "Out of memory\n");
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goto tiff2bw_error;
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}
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for (row = 0; row < h; row++) {
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for (s = 0; s < 3; s++)
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if (TIFFReadScanline(in,
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inbuf+s*rowsize, row, s) < 0)
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goto tiff2bw_error;
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compresssep(outbuf,
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inbuf, inbuf+rowsize, inbuf+2*rowsize, w);
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if (TIFFWriteScanline(out, outbuf, row, 0) < 0)
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break;
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}
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break;
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}
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}
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#undef pack
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if (inbuf)
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_TIFFfree(inbuf);
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if (outbuf)
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_TIFFfree(outbuf);
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TIFFClose(in);
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TIFFClose(out);
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return (EXIT_SUCCESS);
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tiff2bw_error:
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if (inbuf)
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_TIFFfree(inbuf);
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if (outbuf)
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_TIFFfree(outbuf);
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if (out)
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TIFFClose(out);
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if (in)
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TIFFClose(in);
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return (EXIT_FAILURE);
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}
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static int
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processCompressOptions(char* opt)
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{
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if (streq(opt, "none"))
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compression = COMPRESSION_NONE;
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else if (streq(opt, "packbits"))
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compression = COMPRESSION_PACKBITS;
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else if (strneq(opt, "jpeg", 4)) {
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char* cp = strchr(opt, ':');
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compression = COMPRESSION_JPEG;
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while( cp )
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{
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if (isdigit((int)cp[1]))
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quality = atoi(cp+1);
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else if (cp[1] == 'r' )
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jpegcolormode = JPEGCOLORMODE_RAW;
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else
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usage(EXIT_FAILURE);
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cp = strchr(cp+1,':');
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}
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} else if (strneq(opt, "lzw", 3)) {
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char* cp = strchr(opt, ':');
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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 if (strneq(opt, "zip", 3)) {
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char* cp = strchr(opt, ':');
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if (cp)
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predictor = atoi(cp+1);
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compression = COMPRESSION_DEFLATE;
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} else
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return (0);
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return (1);
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}
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#define CopyField(tag, v) \
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if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v)
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#define CopyField2(tag, v1, v2) \
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if (TIFFGetField(in, tag, &v1, &v2)) TIFFSetField(out, tag, v1, v2)
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#define CopyField3(tag, v1, v2, v3) \
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if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3)
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#define CopyField4(tag, v1, v2, v3, v4) \
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if (TIFFGetField(in, tag, &v1, &v2, &v3, &v4)) TIFFSetField(out, tag, v1, v2, v3, v4)
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static void
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cpTag(TIFF* in, TIFF* out, uint16 tag, uint16 count, TIFFDataType type)
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{
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switch (type) {
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case TIFF_SHORT:
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if (count == 1) {
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uint16 shortv;
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CopyField(tag, shortv);
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} else if (count == 2) {
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uint16 shortv1, shortv2;
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CopyField2(tag, shortv1, shortv2);
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} else if (count == 4) {
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uint16 *tr, *tg, *tb, *ta;
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CopyField4(tag, tr, tg, tb, ta);
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} else if (count == (uint16) -1) {
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uint16 shortv1;
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uint16* shortav;
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CopyField2(tag, shortv1, shortav);
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}
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break;
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case TIFF_LONG:
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{ uint32 longv;
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CopyField(tag, longv);
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}
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break;
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case TIFF_RATIONAL:
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if (count == 1) {
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float floatv;
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CopyField(tag, floatv);
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} else if (count == (uint16) -1) {
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float* floatav;
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CopyField(tag, floatav);
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}
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break;
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case TIFF_ASCII:
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{ char* stringv;
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CopyField(tag, stringv);
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}
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break;
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case TIFF_DOUBLE:
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if (count == 1) {
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double doublev;
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CopyField(tag, doublev);
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} else if (count == (uint16) -1) {
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double* doubleav;
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CopyField(tag, doubleav);
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}
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break;
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default:
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TIFFError(TIFFFileName(in),
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"Data type %d is not supported, tag %d skipped.",
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tag, type);
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}
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}
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#undef CopyField4
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#undef CopyField3
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#undef CopyField2
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#undef CopyField
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static struct cpTag {
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uint16 tag;
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uint16 count;
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TIFFDataType type;
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} tags[] = {
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{ TIFFTAG_SUBFILETYPE, 1, TIFF_LONG },
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{ TIFFTAG_THRESHHOLDING, 1, TIFF_SHORT },
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{ TIFFTAG_DOCUMENTNAME, 1, TIFF_ASCII },
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{ TIFFTAG_IMAGEDESCRIPTION, 1, TIFF_ASCII },
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{ TIFFTAG_MAKE, 1, TIFF_ASCII },
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{ TIFFTAG_MODEL, 1, TIFF_ASCII },
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{ TIFFTAG_MINSAMPLEVALUE, 1, TIFF_SHORT },
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{ TIFFTAG_MAXSAMPLEVALUE, 1, TIFF_SHORT },
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{ TIFFTAG_XRESOLUTION, 1, TIFF_RATIONAL },
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{ TIFFTAG_YRESOLUTION, 1, TIFF_RATIONAL },
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{ TIFFTAG_PAGENAME, 1, TIFF_ASCII },
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{ TIFFTAG_XPOSITION, 1, TIFF_RATIONAL },
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{ TIFFTAG_YPOSITION, 1, TIFF_RATIONAL },
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{ TIFFTAG_RESOLUTIONUNIT, 1, TIFF_SHORT },
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{ TIFFTAG_SOFTWARE, 1, TIFF_ASCII },
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{ TIFFTAG_DATETIME, 1, TIFF_ASCII },
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{ TIFFTAG_ARTIST, 1, TIFF_ASCII },
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{ TIFFTAG_HOSTCOMPUTER, 1, TIFF_ASCII },
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{ TIFFTAG_WHITEPOINT, 2, TIFF_RATIONAL },
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{ TIFFTAG_PRIMARYCHROMATICITIES,(uint16) -1,TIFF_RATIONAL },
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{ TIFFTAG_HALFTONEHINTS, 2, TIFF_SHORT },
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{ TIFFTAG_INKSET, 1, TIFF_SHORT },
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{ TIFFTAG_DOTRANGE, 2, TIFF_SHORT },
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{ TIFFTAG_TARGETPRINTER, 1, TIFF_ASCII },
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{ TIFFTAG_SAMPLEFORMAT, 1, TIFF_SHORT },
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{ TIFFTAG_YCBCRCOEFFICIENTS, (uint16) -1,TIFF_RATIONAL },
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{ TIFFTAG_YCBCRSUBSAMPLING, 2, TIFF_SHORT },
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{ TIFFTAG_YCBCRPOSITIONING, 1, TIFF_SHORT },
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{ TIFFTAG_REFERENCEBLACKWHITE, (uint16) -1,TIFF_RATIONAL },
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{ TIFFTAG_EXTRASAMPLES, (uint16) -1, TIFF_SHORT },
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{ TIFFTAG_SMINSAMPLEVALUE, 1, TIFF_DOUBLE },
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{ TIFFTAG_SMAXSAMPLEVALUE, 1, TIFF_DOUBLE },
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{ TIFFTAG_STONITS, 1, TIFF_DOUBLE },
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};
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#define NTAGS (sizeof (tags) / sizeof (tags[0]))
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static void
|
|
cpTags(TIFF* in, TIFF* out)
|
|
{
|
|
struct cpTag *p;
|
|
for (p = tags; p < &tags[NTAGS]; p++)
|
|
{
|
|
if( p->tag == TIFFTAG_GROUP3OPTIONS )
|
|
{
|
|
uint16 compression;
|
|
if( !TIFFGetField(in, TIFFTAG_COMPRESSION, &compression) ||
|
|
compression != COMPRESSION_CCITTFAX3 )
|
|
continue;
|
|
}
|
|
if( p->tag == TIFFTAG_GROUP4OPTIONS )
|
|
{
|
|
uint16 compression;
|
|
if( !TIFFGetField(in, TIFFTAG_COMPRESSION, &compression) ||
|
|
compression != COMPRESSION_CCITTFAX4 )
|
|
continue;
|
|
}
|
|
cpTag(in, out, p->tag, p->count, p->type);
|
|
}
|
|
}
|
|
#undef NTAGS
|
|
|
|
const char* stuff[] = {
|
|
"usage: tiff2bw [options] input.tif output.tif",
|
|
"where options are:",
|
|
" -R % use #% from red channel",
|
|
" -G % use #% from green channel",
|
|
" -B % use #% from blue channel",
|
|
"",
|
|
" -r # make each strip have no more than # rows",
|
|
"",
|
|
" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding",
|
|
" -c zip[:opts] compress output with deflate encoding",
|
|
" -c packbits compress output with packbits encoding",
|
|
" -c g3[:opts] compress output with CCITT Group 3 encoding",
|
|
" -c g4 compress output with CCITT Group 4 encoding",
|
|
" -c none use no compression algorithm on output",
|
|
"",
|
|
"LZW and deflate options:",
|
|
" # set predictor value",
|
|
"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing",
|
|
NULL
|
|
};
|
|
|
|
static void
|
|
usage(int code)
|
|
{
|
|
int i;
|
|
FILE * out = (code == EXIT_SUCCESS) ? stdout : stderr;
|
|
|
|
fprintf(out, "%s\n\n", TIFFGetVersion());
|
|
for (i = 0; stuff[i] != NULL; i++)
|
|
fprintf(out, "%s\n", stuff[i]);
|
|
exit(code);
|
|
}
|
|
|
|
/* vim: set ts=8 sts=8 sw=8 noet: */
|
|
/*
|
|
* Local Variables:
|
|
* mode: c
|
|
* c-basic-offset: 8
|
|
* fill-column: 78
|
|
* End:
|
|
*/
|