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-rw-r--r--tiff/tools/pal2rgb.c431
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diff --git a/tiff/tools/pal2rgb.c b/tiff/tools/pal2rgb.c
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+/* $Id: pal2rgb.c,v 1.10.2.1 2010-06-08 18:50:44 bfriesen Exp $ */
+
+/*
+ * Copyright (c) 1988-1997 Sam Leffler
+ * Copyright (c) 1991-1997 Silicon Graphics, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that (i) the above copyright notices and this permission notice appear in
+ * all copies of the software and related documentation, and (ii) the names of
+ * Sam Leffler and Silicon Graphics may not be used in any advertising or
+ * publicity relating to the software without the specific, prior written
+ * permission of Sam Leffler and Silicon Graphics.
+ *
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
+ * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
+ * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include "tif_config.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#include "tiffio.h"
+
+#define streq(a,b) (strcmp(a,b) == 0)
+#define strneq(a,b,n) (strncmp(a,b,n) == 0)
+
+static void usage(void);
+static void cpTags(TIFF* in, TIFF* out);
+
+static int
+checkcmap(int n, uint16* r, uint16* g, uint16* b)
+{
+ while (n-- > 0)
+ if (*r++ >= 256 || *g++ >= 256 || *b++ >= 256)
+ return (16);
+ fprintf(stderr, "Warning, assuming 8-bit colormap.\n");
+ return (8);
+}
+
+#define CopyField(tag, v) \
+ if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v)
+#define CopyField3(tag, v1, v2, v3) \
+ if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3)
+
+static uint16 compression = (uint16) -1;
+static uint16 predictor = 0;
+static int quality = 75; /* JPEG quality */
+static int jpegcolormode = JPEGCOLORMODE_RGB;
+static int processCompressOptions(char*);
+
+int
+main(int argc, char* argv[])
+{
+ uint16 bitspersample, shortv;
+ uint32 imagewidth, imagelength;
+ uint16 config = PLANARCONFIG_CONTIG;
+ uint32 rowsperstrip = (uint32) -1;
+ uint16 photometric = PHOTOMETRIC_RGB;
+ uint16 *rmap, *gmap, *bmap;
+ uint32 row;
+ int cmap = -1;
+ TIFF *in, *out;
+ int c;
+ extern int optind;
+ extern char* optarg;
+
+ while ((c = getopt(argc, argv, "C:c:p:r:")) != -1)
+ switch (c) {
+ case 'C': /* force colormap interpretation */
+ cmap = atoi(optarg);
+ break;
+ case 'c': /* compression scheme */
+ if (!processCompressOptions(optarg))
+ usage();
+ break;
+ case 'p': /* planar configuration */
+ if (streq(optarg, "separate"))
+ config = PLANARCONFIG_SEPARATE;
+ else if (streq(optarg, "contig"))
+ config = PLANARCONFIG_CONTIG;
+ else
+ usage();
+ break;
+ case 'r': /* rows/strip */
+ rowsperstrip = atoi(optarg);
+ break;
+ case '?':
+ usage();
+ /*NOTREACHED*/
+ }
+ if (argc - optind != 2)
+ usage();
+ in = TIFFOpen(argv[optind], "r");
+ if (in == NULL)
+ return (-1);
+ if (!TIFFGetField(in, TIFFTAG_PHOTOMETRIC, &shortv) ||
+ shortv != PHOTOMETRIC_PALETTE) {
+ fprintf(stderr, "%s: Expecting a palette image.\n",
+ argv[optind]);
+ return (-1);
+ }
+ if (!TIFFGetField(in, TIFFTAG_COLORMAP, &rmap, &gmap, &bmap)) {
+ fprintf(stderr,
+ "%s: No colormap (not a valid palette image).\n",
+ argv[optind]);
+ return (-1);
+ }
+ bitspersample = 0;
+ TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bitspersample);
+ if (bitspersample != 8) {
+ fprintf(stderr, "%s: Sorry, can only handle 8-bit images.\n",
+ argv[optind]);
+ return (-1);
+ }
+ out = TIFFOpen(argv[optind+1], "w");
+ if (out == NULL)
+ return (-2);
+ cpTags(in, out);
+ TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &imagewidth);
+ TIFFGetField(in, TIFFTAG_IMAGELENGTH, &imagelength);
+ if (compression != (uint16)-1)
+ TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
+ else
+ TIFFGetField(in, TIFFTAG_COMPRESSION, &compression);
+ switch (compression) {
+ case COMPRESSION_JPEG:
+ if (jpegcolormode == JPEGCOLORMODE_RGB)
+ photometric = PHOTOMETRIC_YCBCR;
+ else
+ photometric = PHOTOMETRIC_RGB;
+ TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality);
+ TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode);
+ break;
+ case COMPRESSION_LZW:
+ case COMPRESSION_DEFLATE:
+ if (predictor != 0)
+ TIFFSetField(out, TIFFTAG_PREDICTOR, predictor);
+ break;
+ }
+ TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric);
+ TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 3);
+ TIFFSetField(out, TIFFTAG_PLANARCONFIG, config);
+ TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
+ rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip));
+ (void) TIFFGetField(in, TIFFTAG_PLANARCONFIG, &shortv);
+ if (cmap == -1)
+ cmap = checkcmap(1<<bitspersample, rmap, gmap, bmap);
+ if (cmap == 16) {
+ /*
+ * Convert 16-bit colormap to 8-bit.
+ */
+ int i;
+
+ for (i = (1<<bitspersample)-1; i >= 0; i--) {
+#define CVT(x) (((x) * 255) / ((1L<<16)-1))
+ rmap[i] = CVT(rmap[i]);
+ gmap[i] = CVT(gmap[i]);
+ bmap[i] = CVT(bmap[i]);
+ }
+ }
+ { unsigned char *ibuf, *obuf;
+ register unsigned char* pp;
+ register uint32 x;
+ ibuf = (unsigned char*)_TIFFmalloc(TIFFScanlineSize(in));
+ obuf = (unsigned char*)_TIFFmalloc(TIFFScanlineSize(out));
+ switch (config) {
+ case PLANARCONFIG_CONTIG:
+ for (row = 0; row < imagelength; row++) {
+ if (!TIFFReadScanline(in, ibuf, row, 0))
+ goto done;
+ pp = obuf;
+ for (x = 0; x < imagewidth; x++) {
+ *pp++ = (unsigned char) rmap[ibuf[x]];
+ *pp++ = (unsigned char) gmap[ibuf[x]];
+ *pp++ = (unsigned char) bmap[ibuf[x]];
+ }
+ if (!TIFFWriteScanline(out, obuf, row, 0))
+ goto done;
+ }
+ break;
+ case PLANARCONFIG_SEPARATE:
+ for (row = 0; row < imagelength; row++) {
+ if (!TIFFReadScanline(in, ibuf, row, 0))
+ goto done;
+ for (pp = obuf, x = 0; x < imagewidth; x++)
+ *pp++ = (unsigned char) rmap[ibuf[x]];
+ if (!TIFFWriteScanline(out, obuf, row, 0))
+ goto done;
+ for (pp = obuf, x = 0; x < imagewidth; x++)
+ *pp++ = (unsigned char) gmap[ibuf[x]];
+ if (!TIFFWriteScanline(out, obuf, row, 0))
+ goto done;
+ for (pp = obuf, x = 0; x < imagewidth; x++)
+ *pp++ = (unsigned char) bmap[ibuf[x]];
+ if (!TIFFWriteScanline(out, obuf, row, 0))
+ goto done;
+ }
+ break;
+ }
+ _TIFFfree(ibuf);
+ _TIFFfree(obuf);
+ }
+done:
+ (void) TIFFClose(in);
+ (void) TIFFClose(out);
+ return (0);
+}
+
+static int
+processCompressOptions(char* opt)
+{
+ if (streq(opt, "none"))
+ compression = COMPRESSION_NONE;
+ else if (streq(opt, "packbits"))
+ compression = COMPRESSION_PACKBITS;
+ else if (strneq(opt, "jpeg", 4)) {
+ char* cp = strchr(opt, ':');
+
+ compression = COMPRESSION_JPEG;
+ while( cp )
+ {
+ if (isdigit((int)cp[1]))
+ quality = atoi(cp+1);
+ else if (cp[1] == 'r' )
+ jpegcolormode = JPEGCOLORMODE_RAW;
+ else
+ usage();
+
+ cp = strchr(cp+1,':');
+ }
+ } else if (strneq(opt, "lzw", 3)) {
+ char* cp = strchr(opt, ':');
+ if (cp)
+ predictor = atoi(cp+1);
+ compression = COMPRESSION_LZW;
+ } else if (strneq(opt, "zip", 3)) {
+ char* cp = strchr(opt, ':');
+ if (cp)
+ predictor = atoi(cp+1);
+ compression = COMPRESSION_DEFLATE;
+ } else
+ return (0);
+ return (1);
+}
+
+#define CopyField(tag, v) \
+ if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v)
+#define CopyField2(tag, v1, v2) \
+ if (TIFFGetField(in, tag, &v1, &v2)) TIFFSetField(out, tag, v1, v2)
+#define CopyField3(tag, v1, v2, v3) \
+ if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3)
+#define CopyField4(tag, v1, v2, v3, v4) \
+ if (TIFFGetField(in, tag, &v1, &v2, &v3, &v4)) TIFFSetField(out, tag, v1, v2, v3, v4)
+
+static void
+cpTag(TIFF* in, TIFF* out, uint16 tag, uint16 count, TIFFDataType type)
+{
+ switch (type) {
+ case TIFF_SHORT:
+ if (count == 1) {
+ uint16 shortv;
+ CopyField(tag, shortv);
+ } else if (count == 2) {
+ uint16 shortv1, shortv2;
+ CopyField2(tag, shortv1, shortv2);
+ } else if (count == 4) {
+ uint16 *tr, *tg, *tb, *ta;
+ CopyField4(tag, tr, tg, tb, ta);
+ } else if (count == (uint16) -1) {
+ uint16 shortv1;
+ uint16* shortav;
+ CopyField2(tag, shortv1, shortav);
+ }
+ break;
+ case TIFF_LONG:
+ { uint32 longv;
+ CopyField(tag, longv);
+ }
+ break;
+ case TIFF_RATIONAL:
+ if (count == 1) {
+ float floatv;
+ CopyField(tag, floatv);
+ } else if (count == (uint16) -1) {
+ float* floatav;
+ CopyField(tag, floatav);
+ }
+ break;
+ case TIFF_ASCII:
+ { char* stringv;
+ CopyField(tag, stringv);
+ }
+ break;
+ case TIFF_DOUBLE:
+ if (count == 1) {
+ double doublev;
+ CopyField(tag, doublev);
+ } else if (count == (uint16) -1) {
+ double* doubleav;
+ CopyField(tag, doubleav);
+ }
+ break;
+ default:
+ TIFFError(TIFFFileName(in),
+ "Data type %d is not supported, tag %d skipped.",
+ tag, type);
+ }
+}
+
+#undef CopyField4
+#undef CopyField3
+#undef CopyField2
+#undef CopyField
+
+static struct cpTag {
+ uint16 tag;
+ uint16 count;
+ TIFFDataType type;
+} tags[] = {
+ { TIFFTAG_IMAGEWIDTH, 1, TIFF_LONG },
+ { TIFFTAG_IMAGELENGTH, 1, TIFF_LONG },
+ { TIFFTAG_BITSPERSAMPLE, 1, TIFF_SHORT },
+ { TIFFTAG_COMPRESSION, 1, TIFF_SHORT },
+ { TIFFTAG_FILLORDER, 1, TIFF_SHORT },
+ { TIFFTAG_ROWSPERSTRIP, 1, TIFF_LONG },
+ { TIFFTAG_GROUP3OPTIONS, 1, TIFF_LONG },
+ { TIFFTAG_SUBFILETYPE, 1, TIFF_LONG },
+ { TIFFTAG_THRESHHOLDING, 1, TIFF_SHORT },
+ { TIFFTAG_DOCUMENTNAME, 1, TIFF_ASCII },
+ { TIFFTAG_IMAGEDESCRIPTION, 1, TIFF_ASCII },
+ { TIFFTAG_MAKE, 1, TIFF_ASCII },
+ { TIFFTAG_MODEL, 1, TIFF_ASCII },
+ { TIFFTAG_ORIENTATION, 1, TIFF_SHORT },
+ { TIFFTAG_MINSAMPLEVALUE, 1, TIFF_SHORT },
+ { TIFFTAG_MAXSAMPLEVALUE, 1, TIFF_SHORT },
+ { TIFFTAG_XRESOLUTION, 1, TIFF_RATIONAL },
+ { TIFFTAG_YRESOLUTION, 1, TIFF_RATIONAL },
+ { TIFFTAG_PAGENAME, 1, TIFF_ASCII },
+ { TIFFTAG_XPOSITION, 1, TIFF_RATIONAL },
+ { TIFFTAG_YPOSITION, 1, TIFF_RATIONAL },
+ { TIFFTAG_GROUP4OPTIONS, 1, TIFF_LONG },
+ { TIFFTAG_RESOLUTIONUNIT, 1, TIFF_SHORT },
+ { TIFFTAG_PAGENUMBER, 2, TIFF_SHORT },
+ { TIFFTAG_SOFTWARE, 1, TIFF_ASCII },
+ { TIFFTAG_DATETIME, 1, TIFF_ASCII },
+ { TIFFTAG_ARTIST, 1, TIFF_ASCII },
+ { TIFFTAG_HOSTCOMPUTER, 1, TIFF_ASCII },
+ { TIFFTAG_WHITEPOINT, 1, TIFF_RATIONAL },
+ { TIFFTAG_PRIMARYCHROMATICITIES, (uint16) -1,TIFF_RATIONAL },
+ { TIFFTAG_HALFTONEHINTS, 2, TIFF_SHORT },
+ { TIFFTAG_BADFAXLINES, 1, TIFF_LONG },
+ { TIFFTAG_CLEANFAXDATA, 1, TIFF_SHORT },
+ { TIFFTAG_CONSECUTIVEBADFAXLINES, 1, TIFF_LONG },
+ { TIFFTAG_INKSET, 1, TIFF_SHORT },
+ { TIFFTAG_INKNAMES, 1, TIFF_ASCII },
+ { TIFFTAG_DOTRANGE, 2, TIFF_SHORT },
+ { TIFFTAG_TARGETPRINTER, 1, TIFF_ASCII },
+ { TIFFTAG_SAMPLEFORMAT, 1, TIFF_SHORT },
+ { TIFFTAG_YCBCRCOEFFICIENTS, (uint16) -1,TIFF_RATIONAL },
+ { TIFFTAG_YCBCRSUBSAMPLING, 2, TIFF_SHORT },
+ { TIFFTAG_YCBCRPOSITIONING, 1, TIFF_SHORT },
+ { TIFFTAG_REFERENCEBLACKWHITE, (uint16) -1,TIFF_RATIONAL },
+};
+#define NTAGS (sizeof (tags) / sizeof (tags[0]))
+
+static void
+cpTags(TIFF* in, TIFF* out)
+{
+ struct cpTag *p;
+ for (p = tags; p < &tags[NTAGS]; p++)
+ cpTag(in, out, p->tag, p->count, p->type);
+}
+#undef NTAGS
+
+char* stuff[] = {
+"usage: pal2rgb [options] input.tif output.tif",
+"where options are:",
+" -p contig pack samples contiguously (e.g. RGBRGB...)",
+" -p separate store samples separately (e.g. RRR...GGG...BBB...)",
+" -r # make each strip have no more than # rows",
+" -C 8 assume 8-bit colormap values (instead of 16-bit)",
+" -C 16 assume 16-bit colormap values",
+"",
+" -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 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(void)
+{
+ char buf[BUFSIZ];
+ int i;
+
+ setbuf(stderr, buf);
+ fprintf(stderr, "%s\n\n", TIFFGetVersion());
+ for (i = 0; stuff[i] != NULL; i++)
+ fprintf(stderr, "%s\n", stuff[i]);
+ exit(-1);
+}
+
+/* vim: set ts=8 sts=8 sw=8 noet: */
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 8
+ * fill-column: 78
+ * End:
+ */
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