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-rwxr-xr-xtiff/tools/sgi2tiff.c335
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diff --git a/tiff/tools/sgi2tiff.c b/tiff/tools/sgi2tiff.c
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+/* $Id: sgi2tiff.c,v 1.6 2010-03-10 18:56:49 bfriesen Exp $ */
+
+/*
+ * Copyright (c) 1991-1997 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <gl/image.h>
+#include <ctype.h>
+
+#include "tiffio.h"
+
+#define streq(a,b) (strcmp(a,b) == 0)
+#define strneq(a,b,n) (strncmp(a,b,n) == 0)
+
+static short config = PLANARCONFIG_CONTIG;
+static uint16 compression = COMPRESSION_PACKBITS;
+static uint16 predictor = 0;
+static uint16 fillorder = 0;
+static uint32 rowsperstrip = (uint32) -1;
+static int jpegcolormode = JPEGCOLORMODE_RGB;
+static int quality = 75; /* JPEG quality */
+static uint16 photometric;
+
+static void usage(void);
+static int cpContig(IMAGE*, TIFF*);
+static int cpSeparate(IMAGE*, TIFF*);
+static int processCompressOptions(char*);
+
+/* XXX image library has no prototypes */
+extern IMAGE* iopen(const char*, const char*);
+extern void iclose(IMAGE*);
+extern void getrow(IMAGE*, short*, int, int);
+
+int
+main(int argc, char* argv[])
+{
+ IMAGE *in;
+ TIFF *out;
+ int c;
+ extern int optind;
+ extern char* optarg;
+
+ while ((c = getopt(argc, argv, "c:p:r:")) != -1)
+ switch (c) {
+ case 'c': /* compression scheme */
+ if (!processCompressOptions(optarg))
+ usage();
+ break;
+ case 'f': /* fill order */
+ if (streq(optarg, "lsb2msb"))
+ fillorder = FILLORDER_LSB2MSB;
+ else if (streq(optarg, "msb2lsb"))
+ fillorder = FILLORDER_MSB2LSB;
+ else
+ 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 = iopen(argv[optind], "r");
+ if (in == NULL)
+ return (-1);
+ out = TIFFOpen(argv[optind+1], "w");
+ if (out == NULL)
+ return (-2);
+ TIFFSetField(out, TIFFTAG_IMAGEWIDTH, (uint32) in->xsize);
+ TIFFSetField(out, TIFFTAG_IMAGELENGTH, (uint32) in->ysize);
+ TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 8);
+ TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
+ if (in->zsize == 1)
+ photometric = PHOTOMETRIC_MINISBLACK;
+ else
+ photometric = PHOTOMETRIC_RGB;
+ switch (compression) {
+ case COMPRESSION_JPEG:
+ if (photometric == PHOTOMETRIC_RGB && jpegcolormode == JPEGCOLORMODE_RGB)
+ photometric = PHOTOMETRIC_YCBCR;
+ 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);
+ if (fillorder != 0)
+ TIFFSetField(out, TIFFTAG_FILLORDER, fillorder);
+ TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
+ TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, in->zsize);
+ if (in->zsize > 3) {
+ uint16 v[1];
+ v[0] = EXTRASAMPLE_UNASSALPHA;
+ TIFFSetField(out, TIFFTAG_EXTRASAMPLES, 1, v);
+ }
+ TIFFSetField(out, TIFFTAG_MINSAMPLEVALUE, (uint16) in->min);
+ TIFFSetField(out, TIFFTAG_MAXSAMPLEVALUE, (uint16) in->max);
+ TIFFSetField(out, TIFFTAG_PLANARCONFIG, config);
+ if (config != PLANARCONFIG_SEPARATE)
+ TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
+ TIFFDefaultStripSize(out, rowsperstrip));
+ else /* force 1 row/strip for library limitation */
+ TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, 1L);
+ if (in->name[0] != '\0')
+ TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, in->name);
+ if (config == PLANARCONFIG_CONTIG)
+ cpContig(in, out);
+ else
+ cpSeparate(in, out);
+ (void) iclose(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, ':');
+
+ defcompression = 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);
+}
+
+static int
+cpContig(IMAGE* in, TIFF* out)
+{
+ tdata_t buf = _TIFFmalloc(TIFFScanlineSize(out));
+ short *r = NULL;
+ int x, y;
+
+ if (in->zsize == 3) {
+ short *g, *b;
+
+ r = (short *)_TIFFmalloc(3 * in->xsize * sizeof (short));
+ g = r + in->xsize;
+ b = g + in->xsize;
+ for (y = in->ysize-1; y >= 0; y--) {
+ uint8* pp = (uint8*) buf;
+
+ getrow(in, r, y, 0);
+ getrow(in, g, y, 1);
+ getrow(in, b, y, 2);
+ for (x = 0; x < in->xsize; x++) {
+ pp[0] = r[x];
+ pp[1] = g[x];
+ pp[2] = b[x];
+ pp += 3;
+ }
+ if (TIFFWriteScanline(out, buf, in->ysize-y-1, 0) < 0)
+ goto bad;
+ }
+ } else if (in->zsize == 4) {
+ short *g, *b, *a;
+
+ r = (short *)_TIFFmalloc(4 * in->xsize * sizeof (short));
+ g = r + in->xsize;
+ b = g + in->xsize;
+ a = b + in->xsize;
+ for (y = in->ysize-1; y >= 0; y--) {
+ uint8* pp = (uint8*) buf;
+
+ getrow(in, r, y, 0);
+ getrow(in, g, y, 1);
+ getrow(in, b, y, 2);
+ getrow(in, a, y, 3);
+ for (x = 0; x < in->xsize; x++) {
+ pp[0] = r[x];
+ pp[1] = g[x];
+ pp[2] = b[x];
+ pp[3] = a[x];
+ pp += 4;
+ }
+ if (TIFFWriteScanline(out, buf, in->ysize-y-1, 0) < 0)
+ goto bad;
+ }
+ } else {
+ uint8* pp = (uint8*) buf;
+
+ r = (short *)_TIFFmalloc(in->xsize * sizeof (short));
+ for (y = in->ysize-1; y >= 0; y--) {
+ getrow(in, r, y, 0);
+ for (x = in->xsize-1; x >= 0; x--)
+ pp[x] = r[x];
+ if (TIFFWriteScanline(out, buf, in->ysize-y-1, 0) < 0)
+ goto bad;
+ }
+ }
+ if (r)
+ _TIFFfree(r);
+ _TIFFfree(buf);
+ return (1);
+bad:
+ if (r)
+ _TIFFfree(r);
+ _TIFFfree(buf);
+ return (0);
+}
+
+static int
+cpSeparate(IMAGE* in, TIFF* out)
+{
+ tdata_t buf = _TIFFmalloc(TIFFScanlineSize(out));
+ short *r = (short *)_TIFFmalloc(in->xsize * sizeof (short));
+ uint8* pp = (uint8*) buf;
+ int x, y, z;
+
+ for (z = 0; z < in->zsize; z++) {
+ for (y = in->ysize-1; y >= 0; y--) {
+ getrow(in, r, y, z);
+ for (x = 0; x < in->xsize; x++)
+ pp[x] = r[x];
+ if (TIFFWriteScanline(out, buf, in->ysize-y-1, z) < 0)
+ goto bad;
+ }
+ }
+ _TIFFfree(r);
+ _TIFFfree(buf);
+ return (1);
+bad:
+ _TIFFfree(r);
+ _TIFFfree(buf);
+ return (0);
+}
+
+char* stuff[] = {
+"usage: sgi2tiff [options] input.rgb output.tif",
+"where options are:",
+" -r # make each strip have no more than # rows",
+"",
+" -p contig pack samples contiguously (e.g. RGBRGB...)",
+" -p separate store samples separately (e.g. RRR...GGG...BBB...)",
+"",
+" -f lsb2msb force lsb-to-msb FillOrder for output",
+" -f msb2lsb force msb-to-lsb FillOrder for output",
+"",
+" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding",
+" -c zip[:opts] compress output with deflate encoding",
+" -c jpeg[:opts]compress output with JPEG encoding",
+" -c packbits compress output with packbits encoding",
+" -c none use no compression algorithm on output",
+"",
+"JPEG options:",
+" # set compression quality level (0-100, default 75)",
+" r output color image as RGB rather than YCbCr",
+"",
+"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);
+ for (i = 0; stuff[i] != NULL; i++)
+ fprintf(stderr, "%s\n", stuff[i]);
+ exit(-1);
+}
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 8
+ * fill-column: 78
+ * End:
+ */
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