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#ifndef lint
static char rcsid[] = "/mode/users/src/master/tiff/tools/ppm2tiff.c,v 1.1.1.1 1994/04/01 17:15:33 fedor Exp";
#endif
/*
* Copyright (c) 1991, 1992 Sam Leffler
* Copyright (c) 1991, 1992 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 "tiffio.h"
typedef unsigned char u_char;
typedef unsigned short u_short;
typedef unsigned long u_long;
#define howmany(x, y) (((x)+((y)-1))/(y))
#define streq(a,b) (strcmp(a,b) == 0)
u_short compression = -1;
u_short photometric;
u_long rowsperstrip = (u_long) -1;
static
BadPPM(file)
char *file;
{
fprintf(stderr, "%s: Not a PPM file.\n", file);
exit(-2);
}
main(argc, argv)
char *argv[];
{
u_char *buf;
int row, linebytes, spp;
TIFF *out;
FILE *in;
int c, w, h, prec;
char *infile;
argc--, argv++;
if (argc < 1)
usage();
for (; argc > 1 && argv[0][0] == '-'; argc--, argv++) {
if (streq(argv[0], "-none")) {
compression = COMPRESSION_NONE;
continue;
}
if (streq(argv[0], "-packbits")) {
compression = COMPRESSION_PACKBITS;
continue;
}
if (streq(argv[0], "-lzw")) {
compression = COMPRESSION_LZW;
continue;
}
if (streq(argv[0], "-rowsperstrip")) {
argc--, argv++;
rowsperstrip = atoi(argv[0]);
continue;
}
usage();
}
/*
* If only one file is specified, read input from
* stdin; otherwise usage is: ppm2tiff input output.
*/
if (argc > 1) {
infile = argv[0];
argv++;
in = fopen(infile, "r");
if (in == NULL) {
fprintf(stderr, "%s: Can not open.\n", infile);
exit(-1);
}
} else {
infile = "<stdin>";
in = stdin;
}
if (getc(in) != 'P')
BadPPM(infile);
switch (c = getc(in)) {
case '5': /* it's a PGM file */
spp = 1;
photometric = PHOTOMETRIC_MINISBLACK;
break;
case '6': /* it's a PPM file */
spp = 3;
photometric = PHOTOMETRIC_RGB;
break;
default:
BadPPM(infile);
}
if (fscanf(in, " %d %d %d", &w, &h, &prec) != 3)
BadPPM(infile);
if (getc(in) != '\n' || w <= 0 || h <= 0 || prec != 255)
BadPPM(infile);
out = TIFFOpen(argv[0], "w");
if (out == NULL)
exit(-4);
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, (u_long) w);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, (u_long) h);
TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, spp);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 8);
TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric);
if (compression == (u_short)-1)
compression = COMPRESSION_LZW;
TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
linebytes = spp * w;
if (TIFFScanlineSize(out) > linebytes)
buf = (u_char *)malloc(linebytes);
else
buf = (u_char *)malloc(TIFFScanlineSize(out));
if (rowsperstrip == (u_long)-1)
rowsperstrip = (8*1024)/linebytes;
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
rowsperstrip == 0 ? 1L : rowsperstrip);
for (row = 0; row < h; row++) {
if (fread(buf, linebytes, 1, in) != 1) {
fprintf(stderr, "%s: scanline %d: Read error.\n",
infile, row);
break;
}
if (TIFFWriteScanline(out, buf, row, 0) < 0)
break;
}
(void) TIFFClose(out);
}
usage()
{
fprintf(stderr, "usage: ppm2tif [options] [input] output\n");
fprintf(stderr, "where options are:\n");
fprintf(stderr,
" -lzw\t\tcompress output with Lempel-Ziv & Welch encoding\n");
fprintf(stderr,
" -packbits\tcompress output with packbits encoding\n");
fprintf(stderr,
" -none\t\tuse no compression algorithm on output\n");
fprintf(stderr, "\n");
fprintf(stderr,
" -rowsperstrip #\tmake each strip have no more than # rows\n");
exit(-1);
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.