/* $Id: sgi2tiff.c,v 1.5.2.1 2010-06-08 18:50:44 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:
*/