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/* $Id: ras2tiff.c,v 1.15.2.1 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 <stdlib.h>
#include <string.h>
#include <ctype.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "rasterfile.h"
#include "tiffio.h"
#ifndef howmany
#define howmany(x, y) (((x)+((y)-1))/(y))
#endif
#define streq(a,b) (strcmp(a,b) == 0)
#define strneq(a,b,n) (strncmp(a,b,n) == 0)
static uint16 compression = (uint16) -1;
static int jpegcolormode = JPEGCOLORMODE_RGB;
static int quality = 75; /* JPEG quality */
static uint16 predictor = 0;
static void usage(void);
static int processCompressOptions(char*);
int
main(int argc, char* argv[])
{
unsigned char* buf;
long row;
tsize_t linebytes, scanline;
TIFF *out;
FILE *in;
struct rasterfile h;
uint16 photometric;
uint16 config = PLANARCONFIG_CONTIG;
uint32 rowsperstrip = (uint32) -1;
int c;
extern int optind;
extern char* optarg;
while ((c = getopt(argc, argv, "c:r:h")) != -1)
switch (c) {
case 'c': /* compression scheme */
if (!processCompressOptions(optarg))
usage();
break;
case 'r': /* rows/strip */
rowsperstrip = atoi(optarg);
break;
case 'h':
usage();
/*NOTREACHED*/
}
if (argc - optind != 2)
usage();
in = fopen(argv[optind], "rb");
if (in == NULL) {
fprintf(stderr, "%s: Can not open.\n", argv[optind]);
return (-1);
}
if (fread(&h, sizeof (h), 1, in) != 1) {
fprintf(stderr, "%s: Can not read header.\n", argv[optind]);
return (-2);
}
if (strcmp(h.ras_magic, RAS_MAGIC) == 0) {
#ifndef WORDS_BIGENDIAN
TIFFSwabLong((uint32 *)&h.ras_width);
TIFFSwabLong((uint32 *)&h.ras_height);
TIFFSwabLong((uint32 *)&h.ras_depth);
TIFFSwabLong((uint32 *)&h.ras_length);
TIFFSwabLong((uint32 *)&h.ras_type);
TIFFSwabLong((uint32 *)&h.ras_maptype);
TIFFSwabLong((uint32 *)&h.ras_maplength);
#endif
} else if (strcmp(h.ras_magic, RAS_MAGIC_INV) == 0) {
#ifdef WORDS_BIGENDIAN
TIFFSwabLong((uint32 *)&h.ras_width);
TIFFSwabLong((uint32 *)&h.ras_height);
TIFFSwabLong((uint32 *)&h.ras_depth);
TIFFSwabLong((uint32 *)&h.ras_length);
TIFFSwabLong((uint32 *)&h.ras_type);
TIFFSwabLong((uint32 *)&h.ras_maptype);
TIFFSwabLong((uint32 *)&h.ras_maplength);
#endif
} else {
fprintf(stderr, "%s: Not a rasterfile.\n", argv[optind]);
return (-3);
}
out = TIFFOpen(argv[optind+1], "w");
if (out == NULL)
return (-4);
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, (uint32) h.ras_width);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, (uint32) h.ras_height);
TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, h.ras_depth > 8 ? 3 : 1);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, h.ras_depth > 1 ? 8 : 1);
TIFFSetField(out, TIFFTAG_PLANARCONFIG, config);
if (h.ras_maptype != RMT_NONE) {
uint16* red;
register uint16* map;
register int i, j;
int mapsize;
buf = (unsigned char *)_TIFFmalloc(h.ras_maplength);
if (buf == NULL) {
fprintf(stderr, "No space to read in colormap.\n");
return (-5);
}
if (fread(buf, h.ras_maplength, 1, in) != 1) {
fprintf(stderr, "%s: Read error on colormap.\n",
argv[optind]);
return (-6);
}
mapsize = 1<<h.ras_depth;
if (h.ras_maplength > mapsize*3) {
fprintf(stderr,
"%s: Huh, %ld colormap entries, should be %d?\n",
argv[optind], h.ras_maplength, mapsize*3);
return (-7);
}
red = (uint16*)_TIFFmalloc(mapsize * 3 * sizeof (uint16));
if (red == NULL) {
fprintf(stderr, "No space for colormap.\n");
return (-8);
}
map = red;
for (j = 0; j < 3; j++) {
#define SCALE(x) (((x)*((1L<<16)-1))/255)
for (i = h.ras_maplength/3; i-- > 0;)
*map++ = SCALE(*buf++);
if ((i = h.ras_maplength/3) < mapsize) {
i = mapsize - i;
_TIFFmemset(map, 0, i*sizeof (uint16));
map += i;
}
}
TIFFSetField(out, TIFFTAG_COLORMAP,
red, red + mapsize, red + 2*mapsize);
photometric = PHOTOMETRIC_PALETTE;
if (compression == (uint16) -1)
compression = COMPRESSION_PACKBITS;
TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
} else {
/* XXX this is bogus... */
photometric = h.ras_depth == 24 ?
PHOTOMETRIC_RGB : PHOTOMETRIC_MINISBLACK;
if (compression == (uint16) -1)
compression = COMPRESSION_LZW;
TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
}
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);
linebytes = ((h.ras_depth*h.ras_width+15) >> 3) &~ 1;
scanline = TIFFScanlineSize(out);
if (scanline > linebytes) {
buf = (unsigned char *)_TIFFmalloc(scanline);
_TIFFmemset(buf+linebytes, 0, scanline-linebytes);
} else
buf = (unsigned char *)_TIFFmalloc(linebytes);
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
TIFFDefaultStripSize(out, rowsperstrip));
for (row = 0; row < h.ras_height; row++) {
if (fread(buf, linebytes, 1, in) != 1) {
fprintf(stderr, "%s: scanline %ld: Read error.\n",
argv[optind], row);
break;
}
if (h.ras_type == RT_STANDARD && h.ras_depth == 24) {
tsize_t cc = h.ras_width;
unsigned char* cp = buf;
#define SWAP(a,b) { unsigned char t = (a); (a) = (b); (b) = t; }
do {
SWAP(cp[0], cp[2]);
cp += 3;
} while (--cc);
}
if (TIFFWriteScanline(out, buf, row, 0) < 0)
break;
}
(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);
}
char* stuff[] = {
"usage: ras2tiff [options] input.ras output.tif",
"where options are:",
" -r # make each strip have no more than # rows",
"",
" -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",
"For example, -c jpeg:r:50 to get JPEG-encoded RGB data with 50% comp. quality",
"",
"LZW and deflate options:",
" # set predictor value",
"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing",
" -h this help message",
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:
*/
|
