src/px/ttyimage.c

/* Copyright (c) 1991 Regents of the University of California */

#ifndef lint
static char SCCSid[] = "$SunId$ LBL";
#endif

/*
 *  ttyimage.c - program to dump pixel file to dumb terminal.
 *
 *     8/15/85
 */

#include  <stdio.h>

#include  "color.h"
#include  "resolu.h"


#define  NCOLS          133


main(argc, argv)
int  argc;
char  **argv;
{
        FILE  *input;
        int  xres, yres;
        COLR  scanline[NCOLS];
        register int  i, j;
        
        if (argc < 2)
                input = stdin;
        else if ((input = fopen(argv[1], "r")) == NULL) {
                fprintf(stderr, "%s: can't open file \"%s\"\n", argv[0], argv[1]);
                exit(1);
        }
        
                                /* get picture dimensions */
        if (checkheader(input, COLRFMT, NULL) < 0 ||
                        fgetresolu(&xres, &yres, input) < 0) {
                fprintf(stderr, "%s: bad picture format\n", argv[0]);
                exit(1);
        }
        if (xres > NCOLS) {
                fprintf(stderr, "%s: resolution mismatch\n", argv[0]);
                exit(1);
        }
        
        for (i = 0; i < yres; i++) {
                if (freadcolrs(scanline, xres, input) < 0) {
                        fprintf(stderr, "%s: read error\n", argv[0]);
                        exit(1);
                }
                normcolrs(scanline, xres, 0);
                for (j = 0; j < xres; j++)
                        putchar(shade(scanline[j]));
                putchar('\n');
        }

        exit(0);
}


int
shade(clr)                      /* return character for color */
COLR  clr;
{
#define NSHADES  13

        static char  shadech[NSHADES+1] = " .,:;+?%&*$@#";

        return(shadech[normbright(clr)*NSHADES/256]);

#undef NSHADES
}
Revision:	1.8
Committed:	Mon Nov 11 14:01:29 1991 UTC (32 years, 5 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 1.7:	+3 -2 lines
Log Message:	Improved handling of scanline ordering
#	User	Rev	Content
1	greg	1.8	/* Copyright (c) 1991 Regents of the University of California */
2	greg	1.1
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	greg	1.8	#include "resolu.h"
17	greg	1.1
18
19			#define NCOLS 133
20
21
22			main(argc, argv)
23			int argc;
24			char **argv;
25			{
26			FILE *input;
27			int xres, yres;
28	greg	1.3	COLR scanline[NCOLS];
29	greg	1.1	register int i, j;
30
31			if (argc < 2)
32			input = stdin;
33			else if ((input = fopen(argv[1], "r")) == NULL) {
34	greg	1.3	fprintf(stderr, "%s: can't open file \"%s\"\n", argv[0], argv[1]);
35	greg	1.1	exit(1);
36			}
37
38			/* get picture dimensions */
39	greg	1.7	if (checkheader(input, COLRFMT, NULL) < 0 \|\|
40	greg	1.8	fgetresolu(&xres, &yres, input) < 0) {
41	greg	1.7	fprintf(stderr, "%s: bad picture format\n", argv[0]);
42	greg	1.1	exit(1);
43			}
44			if (xres > NCOLS) {
45	greg	1.3	fprintf(stderr, "%s: resolution mismatch\n", argv[0]);
46	greg	1.1	exit(1);
47			}
48
49			for (i = 0; i < yres; i++) {
50	greg	1.3	if (freadcolrs(scanline, xres, input) < 0) {
51			fprintf(stderr, "%s: read error\n", argv[0]);
52	greg	1.1	exit(1);
53			}
54	greg	1.6	normcolrs(scanline, xres, 0);
55	greg	1.1	for (j = 0; j < xres; j++)
56	greg	1.3	putchar(shade(scanline[j]));
57	greg	1.1	putchar('\n');
58			}
59
60			exit(0);
61	greg	1.3	}
62
63
64			int
65			shade(clr) /* return character for color */
66			COLR clr;
67			{
68			#define NSHADES 13
69
70			static char shadech[NSHADES+1] = " .,:;+?%&*$@#";
71
72	greg	1.4	return(shadech[normbright(clr)*NSHADES/256]);
73	greg	1.3
74			#undef NSHADES
75	greg	1.1	}