| 1 |
/* Copyright (c) 1986 Regents of the University of California */ |
| 2 |
|
| 3 |
#ifndef lint |
| 4 |
static char SCCSid[] = "$SunId$ LBL"; |
| 5 |
#endif |
| 6 |
|
| 7 |
/* |
| 8 |
* ttyimage.c - program to dump pixel file to dumb terminal. |
| 9 |
* |
| 10 |
* 8/15/85 |
| 11 |
*/ |
| 12 |
|
| 13 |
#include <stdio.h> |
| 14 |
|
| 15 |
#include "color.h" |
| 16 |
|
| 17 |
|
| 18 |
#define NCOLS 133 |
| 19 |
|
| 20 |
char shadech[] = " .,:;+?%&*$@#"; |
| 21 |
|
| 22 |
#define NSHADES (sizeof(shadech)-1) |
| 23 |
|
| 24 |
#define shade(col) ( bright(col)>=1.0 ? NSHADES-1 : \ |
| 25 |
(int)(bright(col)*NSHADES) ) |
| 26 |
|
| 27 |
char *progname; |
| 28 |
|
| 29 |
|
| 30 |
main(argc, argv) |
| 31 |
int argc; |
| 32 |
char **argv; |
| 33 |
{ |
| 34 |
FILE *input; |
| 35 |
int xres, yres; |
| 36 |
COLOR scanline[NCOLS]; |
| 37 |
char sbuf[256]; |
| 38 |
register int i, j; |
| 39 |
|
| 40 |
progname = argv[0]; |
| 41 |
|
| 42 |
if (argc < 2) |
| 43 |
input = stdin; |
| 44 |
else if ((input = fopen(argv[1], "r")) == NULL) { |
| 45 |
fprintf(stderr, "%s: can't open file \"%s\"\n", progname, argv[1]); |
| 46 |
exit(1); |
| 47 |
} |
| 48 |
|
| 49 |
/* discard header */ |
| 50 |
while (fgets(sbuf, sizeof(sbuf), input) != NULL && sbuf[0] != '\n') |
| 51 |
; |
| 52 |
/* get picture dimensions */ |
| 53 |
if (fgets(sbuf, sizeof(sbuf), input) == NULL || |
| 54 |
sscanf(sbuf, "-Y %d +X %d\n", &yres, &xres) != 2) { |
| 55 |
fprintf(stderr, "%s: bad picture size\n", progname); |
| 56 |
exit(1); |
| 57 |
} |
| 58 |
if (xres > NCOLS) { |
| 59 |
fprintf(stderr, "%s: resolution mismatch\n", progname); |
| 60 |
exit(1); |
| 61 |
} |
| 62 |
|
| 63 |
for (i = 0; i < yres; i++) { |
| 64 |
if (freadscan(scanline, xres, input) < 0) { |
| 65 |
fprintf(stderr, "%s: read error\n", progname); |
| 66 |
exit(1); |
| 67 |
} |
| 68 |
for (j = 0; j < xres; j++) |
| 69 |
putchar(shadech[shade(scanline[j])]); |
| 70 |
putchar('\n'); |
| 71 |
} |
| 72 |
|
| 73 |
exit(0); |
| 74 |
} |
