src/px/ttyimage.c

#ifndef lint
static const char       RCSid[] = "$Id: ttyimage.c,v 2.5 2004/03/28 20:33:14 schorsch Exp $";
#endif
/*
 *  ttyimage.c - program to dump pixel file to dumb terminal.
 *
 *     8/15/85
 */

#include  "rtio.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:	2.6
Committed:	Fri Jul 19 17:37:56 2019 UTC (6 years, 3 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad6R0, rad5R4, rad5R3, HEAD
Changes since 2.5:	+2 -4 lines
Log Message:	Moved declarations and definitions for header.c from resolu.h to rtio.h
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	greg	2.6	static const char RCSid[] = "$Id: ttyimage.c,v 2.5 2004/03/28 20:33:14 schorsch Exp $";
3	greg	1.1	#endif
4			/*
5			* ttyimage.c - program to dump pixel file to dumb terminal.
6			*
7			* 8/15/85
8			*/
9
10	greg	2.6	#include "rtio.h"
11	schorsch	2.4	#include "platform.h"
12	greg	1.1	#include "color.h"
13	greg	1.8	#include "resolu.h"
14	greg	1.1
15
16	greg	2.2	#define NCOLS 133
17	greg	1.1
18	schorsch	2.5	static int shade(COLR clr);
19	greg	1.1
20	schorsch	2.5
21			int
22			main(int argc, char **argv)
23	greg	1.1	{
24			FILE *input;
25			int xres, yres;
26	greg	1.3	COLR scanline[NCOLS];
27	greg	1.1	register int i, j;
28
29			if (argc < 2)
30			input = stdin;
31			else if ((input = fopen(argv[1], "r")) == NULL) {
32	greg	1.3	fprintf(stderr, "%s: can't open file \"%s\"\n", argv[0], argv[1]);
33	greg	1.1	exit(1);
34			}
35	schorsch	2.4	SET_FILE_BINARY(input);
36	greg	1.1	/* get picture dimensions */
37	greg	1.7	if (checkheader(input, COLRFMT, NULL) < 0 \|\|
38	greg	1.8	fgetresolu(&xres, &yres, input) < 0) {
39	greg	1.7	fprintf(stderr, "%s: bad picture format\n", argv[0]);
40	greg	1.1	exit(1);
41			}
42			if (xres > NCOLS) {
43	greg	1.3	fprintf(stderr, "%s: resolution mismatch\n", argv[0]);
44	greg	1.1	exit(1);
45			}
46
47			for (i = 0; i < yres; i++) {
48	greg	1.3	if (freadcolrs(scanline, xres, input) < 0) {
49			fprintf(stderr, "%s: read error\n", argv[0]);
50	greg	1.1	exit(1);
51			}
52	greg	1.6	normcolrs(scanline, xres, 0);
53	greg	1.1	for (j = 0; j < xres; j++)
54	greg	1.3	putchar(shade(scanline[j]));
55	greg	1.1	putchar('\n');
56			}
57
58			exit(0);
59	greg	1.3	}
60
61
62	schorsch	2.5	static int
63			shade( /* return character for color */
64			COLR clr
65			)
66	greg	1.3	{
67	greg	2.2	#define NSHADES 13
68	greg	1.3
69			static char shadech[NSHADES+1] = " .,:;+?%&*$@#";
70
71	greg	1.4	return(shadech[normbright(clr)*NSHADES/256]);
72	greg	1.3
73			#undef NSHADES
74	greg	1.1	}