src/px/ttyimage.c

/* Copyright (c) 1992 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>
#ifdef MSDOS
#include  <fcntl.h>
#endif

#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);
        }
#ifdef MSDOS
        setmode(fileno(input), O_BINARY);
#endif
                                /* 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:	2.2
Committed:	Mon Sep 21 12:15:22 1992 UTC (31 years, 7 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.1:	+9 -4 lines
Log Message:	Changes for PC port
#	User	Rev	Content
1	greg	2.2	/* Copyright (c) 1992 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	greg	2.2	#ifdef MSDOS
15			#include <fcntl.h>
16			#endif
17	greg	1.1
18			#include "color.h"
19	greg	1.8	#include "resolu.h"
20	greg	1.1
21
22	greg	2.2	#define NCOLS 133
23	greg	1.1
24
25			main(argc, argv)
26			int argc;
27			char **argv;
28			{
29			FILE *input;
30			int xres, yres;
31	greg	1.3	COLR scanline[NCOLS];
32	greg	1.1	register int i, j;
33
34			if (argc < 2)
35			input = stdin;
36			else if ((input = fopen(argv[1], "r")) == NULL) {
37	greg	1.3	fprintf(stderr, "%s: can't open file \"%s\"\n", argv[0], argv[1]);
38	greg	1.1	exit(1);
39			}
40	greg	2.2	#ifdef MSDOS
41			setmode(fileno(input), O_BINARY);
42			#endif
43	greg	1.1	/* get picture dimensions */
44	greg	1.7	if (checkheader(input, COLRFMT, NULL) < 0 \|\|
45	greg	1.8	fgetresolu(&xres, &yres, input) < 0) {
46	greg	1.7	fprintf(stderr, "%s: bad picture format\n", argv[0]);
47	greg	1.1	exit(1);
48			}
49			if (xres > NCOLS) {
50	greg	1.3	fprintf(stderr, "%s: resolution mismatch\n", argv[0]);
51	greg	1.1	exit(1);
52			}
53
54			for (i = 0; i < yres; i++) {
55	greg	1.3	if (freadcolrs(scanline, xres, input) < 0) {
56			fprintf(stderr, "%s: read error\n", argv[0]);
57	greg	1.1	exit(1);
58			}
59	greg	1.6	normcolrs(scanline, xres, 0);
60	greg	1.1	for (j = 0; j < xres; j++)
61	greg	1.3	putchar(shade(scanline[j]));
62	greg	1.1	putchar('\n');
63			}
64
65			exit(0);
66	greg	1.3	}
67
68
69			int
70			shade(clr) /* return character for color */
71			COLR clr;
72			{
73	greg	2.2	#define NSHADES 13
74	greg	1.3
75			static char shadech[NSHADES+1] = " .,:;+?%&*$@#";
76
77	greg	1.4	return(shadech[normbright(clr)*NSHADES/256]);
78	greg	1.3
79			#undef NSHADES
80	greg	1.1	}