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/* Copyright (c) 1986 Regents of the University of California */
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#ifndef lint
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static char SCCSid[] = "$SunId$ LBL";
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#endif
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/*
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* ttyimage.c - program to dump pixel file to dumb terminal.
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*
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* 8/15/85
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*/
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#include <stdio.h>
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#include "color.h"
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#define NCOLS 133
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char shadech[] = " .,:;+?%&*$@#";
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#define NSHADES (sizeof(shadech)-1)
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#define shade(col) ( bright(col)>=1.0 ? NSHADES-1 : \
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(int)(bright(col)*NSHADES) )
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char *progname;
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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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FILE *input;
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int xres, yres;
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COLOR scanline[NCOLS];
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char sbuf[256];
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register int i, j;
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progname = argv[0];
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if (argc < 2)
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input = stdin;
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else if ((input = fopen(argv[1], "r")) == NULL) {
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fprintf(stderr, "%s: can't open file \"%s\"\n", progname, argv[1]);
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exit(1);
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}
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/* discard header */
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while (fgets(sbuf, sizeof(sbuf), input) != NULL && sbuf[0] != '\n')
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;
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/* get picture dimensions */
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if (fgetresolu(&xres, &yres, input) != (YMAJOR|YDECR)) {
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fprintf(stderr, "%s: bad picture size\n", progname);
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exit(1);
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}
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if (xres > NCOLS) {
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fprintf(stderr, "%s: resolution mismatch\n", progname);
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exit(1);
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}
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for (i = 0; i < yres; i++) {
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if (freadscan(scanline, xres, input) < 0) {
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fprintf(stderr, "%s: read error\n", progname);
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exit(1);
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}
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for (j = 0; j < xres; j++)
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putchar(shadech[shade(scanline[j])]);
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putchar('\n');
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}
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exit(0);
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}
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