src/px/ttyimage.c

#ifndef lint
static const char       RCSid[] = "$Id: ttyimage.c,v 2.4 2003/06/05 19:29:34 schorsch Exp $";
#endif
/*
 *  ttyimage.c - program to dump pixel file to dumb terminal.
 *
 *     8/15/85
 */

#include  <stdio.h>
#include  <time.h>

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


#define  NCOLS          133

static int shade(COLR clr);


int
main(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);
        }
        SET_FILE_BINARY(input);
                                /* 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);
}


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

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

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

#undef NSHADES
}
Revision:	2.5
Committed:	Sun Mar 28 20:33:14 2004 UTC (20 years, 1 month ago) by schorsch
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad5R2, rad4R2P2, rad5R0, rad5R1, rad3R7P2, rad3R7P1, rad4R2, rad4R1, rad4R0, rad3R6, rad3R6P1, rad3R8, rad3R9, rad4R2P1
Changes since 2.4:	+9 -7 lines
Log Message:	Continued ANSIfication, and other fixes and clarifications.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	2.5	static const char RCSid[] = "$Id: ttyimage.c,v 2.4 2003/06/05 19:29:34 schorsch Exp $";
3	greg	1.1	#endif
4			/*
5			* ttyimage.c - program to dump pixel file to dumb terminal.
6			*
7			* 8/15/85
8			*/
9
10			#include <stdio.h>
11	greg	2.3	#include <time.h>
12	greg	1.1
13	schorsch	2.4	#include "platform.h"
14	greg	1.1	#include "color.h"
15	greg	1.8	#include "resolu.h"
16	greg	1.1
17
18	greg	2.2	#define NCOLS 133
19	greg	1.1
20	schorsch	2.5	static int shade(COLR clr);
21	greg	1.1
22	schorsch	2.5
23			int
24			main(int argc, char **argv)
25	greg	1.1	{
26			FILE *input;
27			int xres, yres;
28	greg	1.3	COLR scanline[NCOLS];
29	greg	1.1	register int i, j;
30
31			if (argc < 2)
32			input = stdin;
33			else if ((input = fopen(argv[1], "r")) == NULL) {
34	greg	1.3	fprintf(stderr, "%s: can't open file \"%s\"\n", argv[0], argv[1]);
35	greg	1.1	exit(1);
36			}
37	schorsch	2.4	SET_FILE_BINARY(input);
38	greg	1.1	/* get picture dimensions */
39	greg	1.7	if (checkheader(input, COLRFMT, NULL) < 0 \|\|
40	greg	1.8	fgetresolu(&xres, &yres, input) < 0) {
41	greg	1.7	fprintf(stderr, "%s: bad picture format\n", argv[0]);
42	greg	1.1	exit(1);
43			}
44			if (xres > NCOLS) {
45	greg	1.3	fprintf(stderr, "%s: resolution mismatch\n", argv[0]);
46	greg	1.1	exit(1);
47			}
48
49			for (i = 0; i < yres; i++) {
50	greg	1.3	if (freadcolrs(scanline, xres, input) < 0) {
51			fprintf(stderr, "%s: read error\n", argv[0]);
52	greg	1.1	exit(1);
53			}
54	greg	1.6	normcolrs(scanline, xres, 0);
55	greg	1.1	for (j = 0; j < xres; j++)
56	greg	1.3	putchar(shade(scanline[j]));
57	greg	1.1	putchar('\n');
58			}
59
60			exit(0);
61	greg	1.3	}
62
63
64	schorsch	2.5	static int
65			shade( /* return character for color */
66			COLR clr
67			)
68	greg	1.3	{
69	greg	2.2	#define NSHADES 13
70	greg	1.3
71			static char shadech[NSHADES+1] = " .,:;+?%&*$@#";
72
73	greg	1.4	return(shadech[normbright(clr)*NSHADES/256]);
74	greg	1.3
75			#undef NSHADES
76	greg	1.1	}