src/px/paintjet.c

#ifndef lint
static const char       RCSid[] = "$Id: paintjet.c,v 2.4 2003/02/22 02:07:27 greg Exp $";
#endif
/*
 *  paintjet.c - program to dump pixel file to HP PaintJet color printer.
 *
 *     10/6/89
 */

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

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

#define  NCOLS          1440            /* 8" at 180 dpi */


main(argc, argv)
int  argc;
char  *argv[];
{
        int  i, status = 0;
        SET_DEFAULT_BINARY();
        SET_FILE_BINARY(stdin);
        SET_FILE_BINARY(stdout);
        if (argc < 2)
                status = printp(NULL) == -1;
        else
                for (i = 1; i < argc; i++)
                        status += printp(argv[i]) == -1;
        exit(status);
}


printp(fname)                           /* print a picture */
char  *fname;
{
        FILE  *input;
        int  xres, yres;
        COLR  scanline[NCOLS];
        int  i;

        if (fname == NULL) {
                input = stdin;
                fname = "<stdin>";
        } else if ((input = fopen(fname, "r")) == NULL) {
                fprintf(stderr, "%s: cannot open\n", fname);
                return(-1);
        }
                                /* discard header */
        if (checkheader(input, COLRFMT, NULL) < 0) {
                fprintf(stderr, "%s: not a Radiance picture\n", fname);
                return(-1);
        }
                                /* get picture dimensions */
        if (fgetresolu(&xres, &yres, input) < 0) {
                fprintf(stderr, "%s: bad picture size\n", fname);
                return(-1);
        }
        if (xres > NCOLS) {
                fprintf(stderr, "%s: resolution mismatch\n", fname);
                return(-1);
        }
        /*
         * Set 180 dpi, 3 planes, left margin and width.
         */
        printf("\033*t180R\033*r3U\033&a%dH\033*r%dS\033*r1A",
                        ((NCOLS-xres)>>4)<<5, xres);
        
        for (i = yres-1; i >= 0; i--) {
                if (freadcolrs(scanline, xres, input) < 0)
                        return(-1);
                normcolrs(scanline, xres, 0);
                plotscan(scanline, xres, i);
        }

        printf("\033*r0B\f");
        
        fclose(input);

        return(0);
}


plotscan(scan, len, y)                  /* plot a scanline */
COLR  scan[];
int  len;
int  y;
{
        int  c;
        register int  x, b;

        for (c = 0; c < 3; c++) {
                printf("\033*b%d%c", (len+7)>>3, c<2 ? 'V' : 'W');
                b = 0;
                for (x = 0; x < len; x++) {
                        b = b<<1 | colbit(scan[x], x, c);
                        if ((x&7) == 7) {
                                putc(b, stdout);
                                b = 0;
                        }
                }
                if (x & 7)
                        putc(b, stdout);
        }
}


colbit(col, x, a)               /* determine bit value for primary at x */
COLR  col;
register int  x;
register int  a;
{
        static int  cerr[NCOLS][3];
        static int  err[3];
        int  b, errp;
        register int  ison;

        b = col[a];
        errp = err[a];
        err[a] += b + cerr[x][a];
        ison = err[a] > 128;
        if (ison) err[a] -= 256;
        err[a] /= 3;
        cerr[x][a] = err[a] + errp;
        return(ison);
}
Revision:	2.5
Committed:	Thu Jun 5 19:29:34 2003 UTC (22 years, 5 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 2.4:	+5 -10 lines
Log Message:	Macros for setting binary file mode. Replacing MSDOS by _WIN32.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	2.5	static const char RCSid[] = "$Id: paintjet.c,v 2.4 2003/02/22 02:07:27 greg Exp $";
3	greg	1.1	#endif
4			/*
5			* paintjet.c - program to dump pixel file to HP PaintJet color printer.
6			*
7			* 10/6/89
8			*/
9
10			#include <stdio.h>
11	greg	2.4	#include <time.h>
12	greg	1.1
13	schorsch	2.5	#include "platform.h"
14	greg	1.1	#include "color.h"
15	greg	1.7	#include "resolu.h"
16	greg	1.1
17	greg	2.3	#define NCOLS 1440 /* 8" at 180 dpi */
18	greg	1.1
19
20			main(argc, argv)
21			int argc;
22			char *argv[];
23			{
24			int i, status = 0;
25	schorsch	2.5	SET_DEFAULT_BINARY();
26			SET_FILE_BINARY(stdin);
27			SET_FILE_BINARY(stdout);
28	greg	1.1	if (argc < 2)
29			status = printp(NULL) == -1;
30			else
31			for (i = 1; i < argc; i++)
32			status += printp(argv[i]) == -1;
33			exit(status);
34			}
35
36
37			printp(fname) /* print a picture */
38			char *fname;
39			{
40			FILE *input;
41			int xres, yres;
42	greg	1.2	COLR scanline[NCOLS];
43	greg	1.1	int i;
44
45			if (fname == NULL) {
46			input = stdin;
47			fname = "<stdin>";
48			} else if ((input = fopen(fname, "r")) == NULL) {
49			fprintf(stderr, "%s: cannot open\n", fname);
50			return(-1);
51			}
52			/* discard header */
53	greg	1.5	if (checkheader(input, COLRFMT, NULL) < 0) {
54			fprintf(stderr, "%s: not a Radiance picture\n", fname);
55			return(-1);
56			}
57	greg	1.1	/* get picture dimensions */
58	greg	1.7	if (fgetresolu(&xres, &yres, input) < 0) {
59	greg	1.1	fprintf(stderr, "%s: bad picture size\n", fname);
60			return(-1);
61			}
62			if (xres > NCOLS) {
63			fprintf(stderr, "%s: resolution mismatch\n", fname);
64			return(-1);
65			}
66			/*
67			* Set 180 dpi, 3 planes, left margin and width.
68			*/
69			printf("\033t180R\033r3U\033&a%dH\033r%dS\033r1A",
70			((NCOLS-xres)>>4)<<5, xres);
71
72			for (i = yres-1; i >= 0; i--) {
73	greg	1.2	if (freadcolrs(scanline, xres, input) < 0)
74	greg	1.1	return(-1);
75	greg	1.4	normcolrs(scanline, xres, 0);
76	greg	1.1	plotscan(scanline, xres, i);
77			}
78
79			printf("\033*r0B\f");
80
81			fclose(input);
82
83			return(0);
84	greg	1.2	}
85
86
87	greg	1.1	plotscan(scan, len, y) /* plot a scanline */
88	greg	1.2	COLR scan[];
89	greg	1.1	int len;
90			int y;
91			{
92			int c;
93			register int x, b;
94
95			for (c = 0; c < 3; c++) {
96			printf("\033*b%d%c", (len+7)>>3, c<2 ? 'V' : 'W');
97			b = 0;
98			for (x = 0; x < len; x++) {
99			b = b<<1 \| colbit(scan[x], x, c);
100			if ((x&7) == 7) {
101			putc(b, stdout);
102			b = 0;
103			}
104			}
105			if (x & 7)
106			putc(b, stdout);
107			}
108			}
109
110
111			colbit(col, x, a) /* determine bit value for primary at x */
112	greg	1.2	COLR col;
113	greg	1.1	register int x;
114			register int a;
115			{
116	greg	1.2	static int cerr[NCOLS][3];
117	greg	2.2	static int err[3];
118			int b, errp;
119	greg	1.1	register int ison;
120
121	greg	1.2	b = col[a];
122	greg	2.2	errp = err[a];
123	greg	1.1	err[a] += b + cerr[x][a];
124	greg	1.2	ison = err[a] > 128;
125			if (ison) err[a] -= 256;
126	greg	1.6	err[a] /= 3;
127	greg	2.2	cerr[x][a] = err[a] + errp;
128	greg	1.1	return(ison);
129			}