329 lines
8.7 KiB
C
329 lines
8.7 KiB
C
/* $Id: sgi2tiff.c,v 1.5 2006/01/11 16:59:36 fwarmerdam Exp $ */
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/*
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* Copyright (c) 1991-1997 Sam Leffler
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* Copyright (c) 1991-1997 Silicon Graphics, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that (i) the above copyright notices and this permission notice appear in
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* all copies of the software and related documentation, and (ii) the names of
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* Sam Leffler and Silicon Graphics may not be used in any advertising or
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* publicity relating to the software without the specific, prior written
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* permission of Sam Leffler and Silicon Graphics.
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*
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* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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*
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* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <gl/image.h>
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#include <ctype.h>
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#include "tiffio.h"
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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 short config = PLANARCONFIG_CONTIG;
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static uint16 compression = COMPRESSION_PACKBITS;
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static uint16 predictor = 0;
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static uint16 fillorder = 0;
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static uint32 rowsperstrip = (uint32) -1;
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static int jpegcolormode = JPEGCOLORMODE_RGB;
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static int quality = 75; /* JPEG quality */
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static uint16 photometric;
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static void usage(void);
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static int cpContig(IMAGE*, TIFF*);
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static int cpSeparate(IMAGE*, TIFF*);
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static int processCompressOptions(char*);
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/* XXX image library has no prototypes */
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extern IMAGE* iopen(const char*, const char*);
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extern void iclose(IMAGE*);
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extern void getrow(IMAGE*, short*, int, int);
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int
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main(int argc, char* argv[])
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{
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IMAGE *in;
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TIFF *out;
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int c;
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extern int optind;
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extern char* optarg;
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while ((c = getopt(argc, argv, "c:p:r:")) != -1)
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switch (c) {
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case 'c': /* compression scheme */
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if (!processCompressOptions(optarg))
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usage();
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break;
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case 'f': /* fill order */
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if (streq(optarg, "lsb2msb"))
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fillorder = FILLORDER_LSB2MSB;
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else if (streq(optarg, "msb2lsb"))
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fillorder = FILLORDER_MSB2LSB;
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else
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usage();
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break;
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case 'p': /* planar configuration */
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if (streq(optarg, "separate"))
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config = PLANARCONFIG_SEPARATE;
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else if (streq(optarg, "contig"))
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config = PLANARCONFIG_CONTIG;
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else
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usage();
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break;
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case 'r': /* rows/strip */
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rowsperstrip = atoi(optarg);
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break;
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case '?':
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usage();
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/*NOTREACHED*/
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}
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if (argc - optind != 2)
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usage();
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in = iopen(argv[optind], "r");
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if (in == NULL)
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return (-1);
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out = TIFFOpen(argv[optind+1], "w");
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if (out == NULL)
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return (-2);
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TIFFSetField(out, TIFFTAG_IMAGEWIDTH, (uint32) in->xsize);
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TIFFSetField(out, TIFFTAG_IMAGELENGTH, (uint32) in->ysize);
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TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 8);
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TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
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if (in->zsize == 1)
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photometric = PHOTOMETRIC_MINISBLACK;
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else
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photometric = PHOTOMETRIC_RGB;
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switch (compression) {
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case COMPRESSION_JPEG:
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if (photometric == PHOTOMETRIC_RGB && jpegcolormode == JPEGCOLORMODE_RGB)
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photometric = PHOTOMETRIC_YCBCR;
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TIFFSetField(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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TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric);
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if (fillorder != 0)
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TIFFSetField(out, TIFFTAG_FILLORDER, fillorder);
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TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
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TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, in->zsize);
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if (in->zsize > 3) {
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uint16 v[1];
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v[0] = EXTRASAMPLE_UNASSALPHA;
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TIFFSetField(out, TIFFTAG_EXTRASAMPLES, 1, v);
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}
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TIFFSetField(out, TIFFTAG_MINSAMPLEVALUE, (uint16) in->min);
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TIFFSetField(out, TIFFTAG_MAXSAMPLEVALUE, (uint16) in->max);
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TIFFSetField(out, TIFFTAG_PLANARCONFIG, config);
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if (config != PLANARCONFIG_SEPARATE)
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TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
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TIFFDefaultStripSize(out, rowsperstrip));
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else /* force 1 row/strip for library limitation */
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TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, 1L);
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if (in->name[0] != '\0')
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TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, in->name);
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if (config == PLANARCONFIG_CONTIG)
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cpContig(in, out);
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else
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cpSeparate(in, out);
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(void) iclose(in);
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(void) TIFFClose(out);
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return (0);
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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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defcompression = 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();
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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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static int
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cpContig(IMAGE* in, TIFF* out)
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{
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tdata_t buf = _TIFFmalloc(TIFFScanlineSize(out));
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short *r = NULL;
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int x, y;
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if (in->zsize == 3) {
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short *g, *b;
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r = (short *)_TIFFmalloc(3 * in->xsize * sizeof (short));
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g = r + in->xsize;
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b = g + in->xsize;
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for (y = in->ysize-1; y >= 0; y--) {
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uint8* pp = (uint8*) buf;
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getrow(in, r, y, 0);
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getrow(in, g, y, 1);
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getrow(in, b, y, 2);
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for (x = 0; x < in->xsize; x++) {
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pp[0] = r[x];
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pp[1] = g[x];
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pp[2] = b[x];
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pp += 3;
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}
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if (TIFFWriteScanline(out, buf, in->ysize-y-1, 0) < 0)
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goto bad;
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}
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} else if (in->zsize == 4) {
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short *g, *b, *a;
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r = (short *)_TIFFmalloc(4 * in->xsize * sizeof (short));
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g = r + in->xsize;
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b = g + in->xsize;
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a = b + in->xsize;
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for (y = in->ysize-1; y >= 0; y--) {
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uint8* pp = (uint8*) buf;
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getrow(in, r, y, 0);
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getrow(in, g, y, 1);
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getrow(in, b, y, 2);
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getrow(in, a, y, 3);
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for (x = 0; x < in->xsize; x++) {
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pp[0] = r[x];
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pp[1] = g[x];
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pp[2] = b[x];
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pp[3] = a[x];
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pp += 4;
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}
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if (TIFFWriteScanline(out, buf, in->ysize-y-1, 0) < 0)
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goto bad;
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}
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} else {
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uint8* pp = (uint8*) buf;
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r = (short *)_TIFFmalloc(in->xsize * sizeof (short));
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for (y = in->ysize-1; y >= 0; y--) {
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getrow(in, r, y, 0);
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for (x = in->xsize-1; x >= 0; x--)
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pp[x] = r[x];
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if (TIFFWriteScanline(out, buf, in->ysize-y-1, 0) < 0)
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goto bad;
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}
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}
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if (r)
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_TIFFfree(r);
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_TIFFfree(buf);
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return (1);
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bad:
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if (r)
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_TIFFfree(r);
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_TIFFfree(buf);
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return (0);
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}
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static int
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cpSeparate(IMAGE* in, TIFF* out)
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{
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tdata_t buf = _TIFFmalloc(TIFFScanlineSize(out));
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short *r = (short *)_TIFFmalloc(in->xsize * sizeof (short));
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uint8* pp = (uint8*) buf;
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int x, y, z;
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for (z = 0; z < in->zsize; z++) {
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for (y = in->ysize-1; y >= 0; y--) {
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getrow(in, r, y, z);
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for (x = 0; x < in->xsize; x++)
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pp[x] = r[x];
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if (TIFFWriteScanline(out, buf, in->ysize-y-1, z) < 0)
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goto bad;
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}
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}
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_TIFFfree(r);
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_TIFFfree(buf);
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return (1);
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bad:
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_TIFFfree(r);
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_TIFFfree(buf);
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return (0);
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}
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char* stuff[] = {
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"usage: sgi2tiff [options] input.rgb output.tif",
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"where options are:",
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" -r # make each strip have no more than # rows",
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"",
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" -p contig pack samples contiguously (e.g. RGBRGB...)",
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" -p separate store samples separately (e.g. RRR...GGG...BBB...)",
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"",
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" -f lsb2msb force lsb-to-msb FillOrder for output",
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" -f msb2lsb force msb-to-lsb FillOrder for output",
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"",
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" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding",
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" -c zip[:opts] compress output with deflate encoding",
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" -c jpeg[:opts]compress output with JPEG encoding",
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" -c packbits compress output with packbits encoding",
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" -c none use no compression algorithm on output",
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"",
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"JPEG options:",
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" # set compression quality level (0-100, default 75)",
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" r output color image as RGB rather than YCbCr",
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"",
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"LZW and deflate options:",
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" # set predictor value",
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"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing",
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NULL
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};
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static void
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usage(void)
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{
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char buf[BUFSIZ];
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int i;
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setbuf(stderr, buf);
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for (i = 0; stuff[i] != NULL; i++)
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fprintf(stderr, "%s\n", stuff[i]);
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exit(-1);
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}
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