517 lines
17 KiB
C
517 lines
17 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 "libport.h"
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#include "tif_config.h"
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#include <ctype.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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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include "tiffio.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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#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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static void usage(int code);
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static void cpTags(TIFF *in, TIFF *out);
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static int checkcmap(int n, uint16_t *r, uint16_t *g, uint16_t *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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fprintf(stderr, "Warning, assuming 8-bit colormap.\n");
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return (8);
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}
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#define CopyField(tag, v) \
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if (TIFFGetField(in, tag, &v)) \
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TIFFSetField(out, tag, v)
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#define CopyField3(tag, v1, v2, v3) \
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if (TIFFGetField(in, tag, &v1, &v2, &v3)) \
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TIFFSetField(out, tag, v1, v2, v3)
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static uint16_t compression = (uint16_t)-1;
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static uint16_t predictor = 0;
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static int quality = 75; /* JPEG quality */
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static int jpegcolormode = JPEGCOLORMODE_RGB;
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static int processCompressOptions(char *);
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int main(int argc, char *argv[])
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{
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uint16_t bitspersample, shortv;
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uint32_t imagewidth, imagelength;
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uint16_t config = PLANARCONFIG_CONTIG;
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uint32_t rowsperstrip = (uint32_t)-1;
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uint16_t photometric = PHOTOMETRIC_RGB;
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uint16_t *rmap, *gmap, *bmap;
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uint32_t row;
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int cmap = -1;
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TIFF *in, *out;
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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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while ((c = getopt(argc, argv, "C:c:p:r:h")) != -1)
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switch (c)
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{
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case 'C': /* force colormap interpretation */
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cmap = atoi(optarg);
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break;
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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 '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(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 'h':
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usage(EXIT_SUCCESS);
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break;
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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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if (!TIFFGetField(in, TIFFTAG_PHOTOMETRIC, &shortv) ||
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shortv != PHOTOMETRIC_PALETTE)
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{
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fprintf(stderr, "%s: Expecting a palette image.\n", argv[optind]);
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(void)TIFFClose(in);
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return (EXIT_FAILURE);
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}
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if (!TIFFGetField(in, TIFFTAG_COLORMAP, &rmap, &gmap, &bmap))
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{
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fprintf(stderr, "%s: No colormap (not a valid palette image).\n",
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argv[optind]);
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(void)TIFFClose(in);
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return (EXIT_FAILURE);
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}
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bitspersample = 0;
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TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bitspersample);
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if (bitspersample != 8)
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{
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fprintf(stderr, "%s: Sorry, can only handle 8-bit images.\n",
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argv[optind]);
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(void)TIFFClose(in);
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return (EXIT_FAILURE);
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}
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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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(void)TIFFClose(in);
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return (EXIT_FAILURE);
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}
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cpTags(in, out);
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TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &imagewidth);
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TIFFGetField(in, TIFFTAG_IMAGELENGTH, &imagelength);
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if (compression != (uint16_t)-1)
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TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
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else
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TIFFGetField(in, TIFFTAG_COMPRESSION, &compression);
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switch (compression)
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{
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case COMPRESSION_JPEG:
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if (jpegcolormode == JPEGCOLORMODE_RGB)
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photometric = PHOTOMETRIC_YCBCR;
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else
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photometric = PHOTOMETRIC_RGB;
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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_ADOBE_DEFLATE:
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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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TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric);
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TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 3);
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TIFFSetField(out, TIFFTAG_PLANARCONFIG, config);
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TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
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rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip));
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(void)TIFFGetField(in, TIFFTAG_PLANARCONFIG, &shortv);
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if (cmap == -1)
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cmap = checkcmap(1 << bitspersample, rmap, gmap, bmap);
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if (cmap == 16)
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{
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/*
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* Convert 16-bit colormap to 8-bit.
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*/
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int i;
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for (i = (1 << bitspersample) - 1; i >= 0; i--)
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{
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#define CVT(x) (((x)*255) / ((1L << 16) - 1))
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rmap[i] = CVT(rmap[i]);
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gmap[i] = CVT(gmap[i]);
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bmap[i] = CVT(bmap[i]);
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}
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}
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{
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unsigned char *ibuf, *obuf;
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register unsigned char *pp;
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register uint32_t x;
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tmsize_t tss_in = TIFFScanlineSize(in);
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tmsize_t tss_out = TIFFScanlineSize(out);
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if (tss_out / tss_in < 3)
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{
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/*
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* BUG 2750: The following code does not know about chroma
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* subsampling of JPEG data. It assumes that the output buffer is 3x
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* the length of the input buffer due to exploding the palette into
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* RGB tuples. If this assumption is incorrect, it could lead to a
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* buffer overflow. Go ahead and fail now to prevent that.
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*/
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fprintf(stderr, "Could not determine correct image size for "
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"output. Exiting.\n");
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return EXIT_FAILURE;
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}
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ibuf = (unsigned char *)_TIFFmalloc(tss_in);
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obuf = (unsigned char *)_TIFFmalloc(tss_out);
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switch (config)
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{
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case PLANARCONFIG_CONTIG:
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for (row = 0; row < imagelength; row++)
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{
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if (!TIFFReadScanline(in, ibuf, row, 0))
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goto done;
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pp = obuf;
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for (x = 0; x < imagewidth; x++)
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{
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*pp++ = (unsigned char)rmap[ibuf[x]];
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*pp++ = (unsigned char)gmap[ibuf[x]];
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*pp++ = (unsigned char)bmap[ibuf[x]];
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}
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if (!TIFFWriteScanline(out, obuf, row, 0))
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goto done;
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}
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break;
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case PLANARCONFIG_SEPARATE:
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for (row = 0; row < imagelength; row++)
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{
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if (!TIFFReadScanline(in, ibuf, row, 0))
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goto done;
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for (pp = obuf, x = 0; x < imagewidth; x++)
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*pp++ = (unsigned char)rmap[ibuf[x]];
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if (!TIFFWriteScanline(out, obuf, row, 0))
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goto done;
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for (pp = obuf, x = 0; x < imagewidth; x++)
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*pp++ = (unsigned char)gmap[ibuf[x]];
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if (!TIFFWriteScanline(out, obuf, row, 0))
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goto done;
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for (pp = obuf, x = 0; x < imagewidth; x++)
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*pp++ = (unsigned char)bmap[ibuf[x]];
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if (!TIFFWriteScanline(out, obuf, row, 0))
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goto done;
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}
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break;
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}
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_TIFFfree(ibuf);
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_TIFFfree(obuf);
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}
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done:
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(void)TIFFClose(in);
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(void)TIFFClose(out);
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return (EXIT_SUCCESS);
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}
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static int 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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{
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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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}
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else if (strneq(opt, "lzw", 3))
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{
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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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}
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else if (strneq(opt, "zip", 3))
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{
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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_ADOBE_DEFLATE;
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}
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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)) \
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TIFFSetField(out, tag, v)
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#define CopyField2(tag, v1, v2) \
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if (TIFFGetField(in, tag, &v1, &v2)) \
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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)) \
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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)) \
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TIFFSetField(out, tag, v1, v2, v3, v4)
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static void cpTag(TIFF *in, TIFF *out, uint16_t tag, uint16_t count,
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TIFFDataType type)
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{
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switch (type)
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{
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case TIFF_SHORT:
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if (count == 1)
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{
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uint16_t shortv;
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CopyField(tag, shortv);
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}
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else if (count == 2)
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{
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uint16_t shortv1, shortv2;
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CopyField2(tag, shortv1, shortv2);
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}
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else if (count == 4)
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{
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uint16_t *tr, *tg, *tb, *ta;
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CopyField4(tag, tr, tg, tb, ta);
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}
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else if (count == (uint16_t)-1)
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{
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uint16_t shortv1;
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uint16_t *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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{
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uint32_t 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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{
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float floatv;
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CopyField(tag, floatv);
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}
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else if (count == (uint16_t)-1)
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{
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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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{
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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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{
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double doublev;
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CopyField(tag, doublev);
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}
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else if (count == (uint16_t)-1)
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{
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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.", tag,
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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 const struct cpTag
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{
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uint16_t tag;
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uint16_t count;
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TIFFDataType type;
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} tags[] = {
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{TIFFTAG_IMAGEWIDTH, 1, TIFF_LONG},
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{TIFFTAG_IMAGELENGTH, 1, TIFF_LONG},
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{TIFFTAG_BITSPERSAMPLE, 1, TIFF_SHORT},
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{TIFFTAG_COMPRESSION, 1, TIFF_SHORT},
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{TIFFTAG_FILLORDER, 1, TIFF_SHORT},
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{TIFFTAG_ROWSPERSTRIP, 1, TIFF_LONG},
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{TIFFTAG_GROUP3OPTIONS, 1, TIFF_LONG},
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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_ORIENTATION, 1, TIFF_SHORT},
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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_GROUP4OPTIONS, 1, TIFF_LONG},
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{TIFFTAG_RESOLUTIONUNIT, 1, TIFF_SHORT},
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{TIFFTAG_PAGENUMBER, 2, 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_t)-1, TIFF_RATIONAL},
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{TIFFTAG_HALFTONEHINTS, 2, TIFF_SHORT},
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{TIFFTAG_BADFAXLINES, 1, TIFF_LONG},
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{TIFFTAG_CLEANFAXDATA, 1, TIFF_SHORT},
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{TIFFTAG_CONSECUTIVEBADFAXLINES, 1, TIFF_LONG},
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{TIFFTAG_INKSET, 1, TIFF_SHORT},
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/*{ TIFFTAG_INKNAMES, 1, TIFF_ASCII },*/ /* Needs much
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more
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complicated
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logic. See
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tiffcp */
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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_t)-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_t)-1, TIFF_RATIONAL},
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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)
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{
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const struct cpTag *p;
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for (p = tags; p < &tags[NTAGS]; p++)
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{
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if (p->tag == TIFFTAG_GROUP3OPTIONS)
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{
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uint16_t compression;
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if (!TIFFGetField(in, TIFFTAG_COMPRESSION, &compression) ||
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compression != COMPRESSION_CCITTFAX3)
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continue;
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}
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if (p->tag == TIFFTAG_GROUP4OPTIONS)
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{
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uint16_t compression;
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if (!TIFFGetField(in, TIFFTAG_COMPRESSION, &compression) ||
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compression != COMPRESSION_CCITTFAX4)
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continue;
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}
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cpTag(in, out, p->tag, p->count, p->type);
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}
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}
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#undef NTAGS
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static const char usage_info[] =
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"Convert a palette color TIFF image to a full color image\n\n"
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"usage: pal2rgb [options] input.tif output.tif\n"
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"where options are:\n"
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" -p contig pack samples contiguously (e.g. RGBRGB...)\n"
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" -p separate store samples separately (e.g. RRR...GGG...BBB...)\n"
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" -r # make each strip have no more than # rows\n"
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" -C 8 assume 8-bit colormap values (instead of 16-bit)\n"
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" -C 16 assume 16-bit colormap values\n"
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"\n"
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#ifdef LZW_SUPPORT
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" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding\n"
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/* " LZW options:\n" */
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" # set predictor value\n"
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" For example, -c lzw:2 to get LZW-encoded data with horizontal "
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"differencing\n"
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#endif
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#ifdef ZIP_SUPPORT
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" -c zip[:opts] compress output with deflate encoding\n"
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/* " Deflate (ZIP) options:\n" */
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" # set predictor value\n"
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#endif
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#ifdef PACKBITS_SUPPORT
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" -c packbits compress output with packbits encoding\n"
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#endif
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#if defined(LZW_SUPPORT) || defined(ZIP_SUPPORT) || defined(PACKBITS_SUPPORT)
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" -c none use no compression algorithm on output\n"
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#endif
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;
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static void usage(int code)
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{
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FILE *out = (code == EXIT_SUCCESS) ? stdout : stderr;
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fprintf(out, "%s\n\n", TIFFGetVersion());
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fprintf(out, "%s", usage_info);
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exit(code);
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}
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