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/* $Id: ppm2tiff.c,v 1.13.2.2 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 "tif_config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif
#ifdef HAVE_IO_H
# include <io.h>
#endif
#include "tiffio.h"
#ifndef HAVE_GETOPT
extern int getopt(int, char**, char*);
#endif
#define streq(a,b) (strcmp(a,b) == 0)
#define strneq(a,b,n) (strncmp(a,b,n) == 0)
static uint16 compression = COMPRESSION_PACKBITS;
static uint16 predictor = 0;
static int quality = 75; /* JPEG quality */
static int jpegcolormode = JPEGCOLORMODE_RGB;
static uint32 g3opts;
static void usage(void);
static int processCompressOptions(char*);
static void
BadPPM(char* file)
{
fprintf(stderr, "%s: Not a PPM file.\n", file);
exit(-2);
}
int
main(int argc, char* argv[])
{
uint16 photometric = 0;
uint32 rowsperstrip = (uint32) -1;
double resolution = -1;
unsigned char *buf = NULL;
tsize_t linebytes = 0;
uint16 spp = 1;
uint16 bpp = 8;
TIFF *out;
FILE *in;
unsigned int w, h, prec, row;
char *infile;
int c;
extern int optind;
extern char* optarg;
if (argc < 2) {
fprintf(stderr, "%s: Too few arguments\n", argv[0]);
usage();
}
while ((c = getopt(argc, argv, "c:r:R:")) != -1)
switch (c) {
case 'c': /* compression scheme */
if (!processCompressOptions(optarg))
usage();
break;
case 'r': /* rows/strip */
rowsperstrip = atoi(optarg);
break;
case 'R': /* resolution */
resolution = atof(optarg);
break;
case '?':
usage();
/*NOTREACHED*/
}
if (optind + 2 < argc) {
fprintf(stderr, "%s: Too many arguments\n", argv[0]);
usage();
}
/*
* If only one file is specified, read input from
* stdin; otherwise usage is: ppm2tiff input output.
*/
if (argc - optind > 1) {
infile = argv[optind++];
in = fopen(infile, "rb");
if (in == NULL) {
fprintf(stderr, "%s: Can not open.\n", infile);
return (-1);
}
} else {
infile = "<stdin>";
in = stdin;
#if defined(HAVE_SETMODE) && defined(O_BINARY)
setmode(fileno(stdin), O_BINARY);
#endif
}
if (fgetc(in) != 'P')
BadPPM(infile);
switch (fgetc(in)) {
case '4': /* it's a PBM file */
bpp = 1;
spp = 1;
photometric = PHOTOMETRIC_MINISWHITE;
break;
case '5': /* it's a PGM file */
bpp = 8;
spp = 1;
photometric = PHOTOMETRIC_MINISBLACK;
break;
case '6': /* it's a PPM file */
bpp = 8;
spp = 3;
photometric = PHOTOMETRIC_RGB;
if (compression == COMPRESSION_JPEG &&
jpegcolormode == JPEGCOLORMODE_RGB)
photometric = PHOTOMETRIC_YCBCR;
break;
default:
BadPPM(infile);
}
/* Parse header */
while(1) {
if (feof(in))
BadPPM(infile);
c = fgetc(in);
/* Skip whitespaces (blanks, TABs, CRs, LFs) */
if (strchr(" \t\r\n", c))
continue;
/* Check for comment line */
if (c == '#') {
do {
c = fgetc(in);
} while(!(strchr("\r\n", c) || feof(in)));
continue;
}
ungetc(c, in);
break;
}
switch (bpp) {
case 1:
if (fscanf(in, " %u %u", &w, &h) != 2)
BadPPM(infile);
if (fgetc(in) != '\n')
BadPPM(infile);
break;
case 8:
if (fscanf(in, " %u %u %u", &w, &h, &prec) != 3)
BadPPM(infile);
if (fgetc(in) != '\n' || prec != 255)
BadPPM(infile);
break;
}
out = TIFFOpen(argv[optind], "w");
if (out == NULL)
return (-4);
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, (uint32) w);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, (uint32) h);
TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, spp);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, bpp);
TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric);
TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
switch (compression) {
case COMPRESSION_JPEG:
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;
case COMPRESSION_CCITTFAX3:
TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, g3opts);
break;
}
switch (bpp) {
case 1:
linebytes = (spp * w + (8 - 1)) / 8;
if (rowsperstrip == (uint32) -1) {
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, h);
} else {
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
TIFFDefaultStripSize(out, rowsperstrip));
}
break;
case 8:
linebytes = spp * w;
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
TIFFDefaultStripSize(out, rowsperstrip));
break;
}
if (TIFFScanlineSize(out) > linebytes)
buf = (unsigned char *)_TIFFmalloc(linebytes);
else
buf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(out));
if (resolution > 0) {
TIFFSetField(out, TIFFTAG_XRESOLUTION, resolution);
TIFFSetField(out, TIFFTAG_YRESOLUTION, resolution);
TIFFSetField(out, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH);
}
for (row = 0; row < h; row++) {
if (fread(buf, linebytes, 1, in) != 1) {
fprintf(stderr, "%s: scanline %lu: Read error.\n",
infile, (unsigned long) row);
break;
}
if (TIFFWriteScanline(out, buf, row, 0) < 0)
break;
}
(void) TIFFClose(out);
if (buf)
_TIFFfree(buf);
return (0);
}
static void
processG3Options(char* cp)
{
g3opts = 0;
if( (cp = strchr(cp, ':')) ) {
do {
cp++;
if (strneq(cp, "1d", 2))
g3opts &= ~GROUP3OPT_2DENCODING;
else if (strneq(cp, "2d", 2))
g3opts |= GROUP3OPT_2DENCODING;
else if (strneq(cp, "fill", 4))
g3opts |= GROUP3OPT_FILLBITS;
else
usage();
} while( (cp = strchr(cp, ':')) );
}
}
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, "g3", 2)) {
processG3Options(opt);
compression = COMPRESSION_CCITTFAX3;
} else if (streq(opt, "g4")) {
compression = COMPRESSION_CCITTFAX4;
} 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: ppm2tiff [options] input.ppm output.tif",
"where options are:",
" -r # make each strip have no more than # rows",
" -R # set x&y resolution (dpi)",
"",
" -c jpeg[:opts] compress output with JPEG encoding",
" -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 (the default)",
" -c g3[:opts] compress output with CCITT Group 3 encoding",
" -c g4 compress output with CCITT Group 4 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);
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:
*/
|
