src/px/ttyimage.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 *  ttyimage.c - program to dump pixel file to dumb terminal.
 *
 *     8/15/85
 */

#include  <stdio.h>
#ifdef MSDOS
#include  <fcntl.h>
#endif
#include  <time.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);
        }
#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:	2.3
Committed:	Sat Feb 22 02:07:28 2003 UTC (21 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R5
Changes since 2.2:	+2 -4 lines
Log Message:	Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	greg	2.3	static const char RCSid[] = "$Id$";
3	greg	1.1	#endif
4			/*
5			* ttyimage.c - program to dump pixel file to dumb terminal.
6			*
7			* 8/15/85
8			*/
9
10			#include <stdio.h>
11	greg	2.2	#ifdef MSDOS
12			#include <fcntl.h>
13			#endif
14	greg	2.3	#include <time.h>
15	greg	1.1
16			#include "color.h"
17	greg	1.8	#include "resolu.h"
18	greg	1.1
19
20	greg	2.2	#define NCOLS 133
21	greg	1.1
22
23			main(argc, argv)
24			int argc;
25			char **argv;
26			{
27			FILE *input;
28			int xres, yres;
29	greg	1.3	COLR scanline[NCOLS];
30	greg	1.1	register int i, j;
31
32			if (argc < 2)
33			input = stdin;
34			else if ((input = fopen(argv[1], "r")) == NULL) {
35	greg	1.3	fprintf(stderr, "%s: can't open file \"%s\"\n", argv[0], argv[1]);
36	greg	1.1	exit(1);
37			}
38	greg	2.2	#ifdef MSDOS
39			setmode(fileno(input), O_BINARY);
40			#endif
41	greg	1.1	/* get picture dimensions */
42	greg	1.7	if (checkheader(input, COLRFMT, NULL) < 0 \|\|
43	greg	1.8	fgetresolu(&xres, &yres, input) < 0) {
44	greg	1.7	fprintf(stderr, "%s: bad picture format\n", argv[0]);
45	greg	1.1	exit(1);
46			}
47			if (xres > NCOLS) {
48	greg	1.3	fprintf(stderr, "%s: resolution mismatch\n", argv[0]);
49	greg	1.1	exit(1);
50			}
51
52			for (i = 0; i < yres; i++) {
53	greg	1.3	if (freadcolrs(scanline, xres, input) < 0) {
54			fprintf(stderr, "%s: read error\n", argv[0]);
55	greg	1.1	exit(1);
56			}
57	greg	1.6	normcolrs(scanline, xres, 0);
58	greg	1.1	for (j = 0; j < xres; j++)
59	greg	1.3	putchar(shade(scanline[j]));
60	greg	1.1	putchar('\n');
61			}
62
63			exit(0);
64	greg	1.3	}
65
66
67			int
68			shade(clr) /* return character for color */
69			COLR clr;
70			{
71	greg	2.2	#define NSHADES 13
72	greg	1.3
73			static char shadech[NSHADES+1] = " .,:;+?%&*$@#";
74
75	greg	1.4	return(shadech[normbright(clr)*NSHADES/256]);
76	greg	1.3
77			#undef NSHADES
78	greg	1.1	}