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greg |
1.1 |
#ifndef lint
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schorsch |
2.3 |
static const char RCSid[] = "$Id: ra_im.c,v 2.2 2003/02/22 02:07:27 greg Exp $";
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greg |
1.1 |
#endif
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/*
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* ra_im.c - convert Radiance picture to imagetools raw format.
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*
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* 9/16/88
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*/
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#include <stdio.h>
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schorsch |
2.3 |
#include "rtprocess.h"
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greg |
1.1 |
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#define PCOMM "pvalue -h -b -db"
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#define MINVAL 1
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#define MAXVAL 252
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schorsch |
2.3 |
extern FILE *freopen();
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greg |
1.1 |
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main(argc, argv)
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int argc;
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char *argv[];
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{
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register int c;
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register FILE *fp;
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if (argc > 3) {
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fputs("Usage: ", stderr);
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fputs(argv[0], stderr);
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fputs(" [infile [outfile]]\n", stderr);
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exit(1);
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}
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if (argc > 1 && freopen(argv[1], "r", stdin) == NULL) {
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perror(argv[1]);
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exit(1);
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}
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if (argc > 2 && freopen(argv[2], "w", stdout) == NULL) {
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perror(argv[2]);
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exit(1);
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}
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if ((fp = popen(PCOMM, "r")) == NULL) {
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perror(argv[0]);
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exit(1);
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}
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while ((c = getc(fp)) != EOF) {
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if (c < MINVAL)
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putc(MINVAL, stdout);
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else if (c > MAXVAL)
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putc(MAXVAL, stdout);
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else
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putc(c, stdout);
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}
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exit(pclose(fp));
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}
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