src/px/paintjet.c

/* Copyright (c) 1992 Regents of the University of California */

#ifndef lint
static char SCCSid[] = "$SunId$ LBL";
#endif

/*
 *  paintjet.c - program to dump pixel file to HP PaintJet color printer.
 *
 *     10/6/89
 */

#include  <stdio.h>
#ifdef MSDOS
#include  <fcntl.h>
#endif

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

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


main(argc, argv)
int  argc;
char  *argv[];
{
        int  i, status = 0;
#ifdef MSDOS
        extern int  _fmode;
        _fmode = O_BINARY;
        setmode(fileno(stdin), O_BINARY);
        setmode(fileno(stdout), O_BINARY);
#endif
        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:	2.3
Committed:	Mon Sep 21 12:13:43 1992 UTC (31 years, 7 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.2:	+11 -3 lines
Log Message:	Changes for PC port
#	User	Rev	Content
1	greg	2.3	/* 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			* paintjet.c - program to dump pixel file to HP PaintJet color printer.
9			*
10			* 10/6/89
11			*/
12
13			#include <stdio.h>
14	greg	2.3	#ifdef MSDOS
15			#include <fcntl.h>
16			#endif
17	greg	1.1
18			#include "color.h"
19	greg	1.7	#include "resolu.h"
20	greg	1.1
21	greg	2.3	#define NCOLS 1440 /* 8" at 180 dpi */
22	greg	1.1
23
24			main(argc, argv)
25			int argc;
26			char *argv[];
27			{
28			int i, status = 0;
29	greg	2.3	#ifdef MSDOS
30			extern int _fmode;
31			_fmode = O_BINARY;
32			setmode(fileno(stdin), O_BINARY);
33			setmode(fileno(stdout), O_BINARY);
34			#endif
35	greg	1.1	if (argc < 2)
36			status = printp(NULL) == -1;
37			else
38			for (i = 1; i < argc; i++)
39			status += printp(argv[i]) == -1;
40			exit(status);
41			}
42
43
44			printp(fname) /* print a picture */
45			char *fname;
46			{
47			FILE *input;
48			int xres, yres;
49	greg	1.2	COLR scanline[NCOLS];
50	greg	1.1	int i;
51
52			if (fname == NULL) {
53			input = stdin;
54			fname = "<stdin>";
55			} else if ((input = fopen(fname, "r")) == NULL) {
56			fprintf(stderr, "%s: cannot open\n", fname);
57			return(-1);
58			}
59			/* discard header */
60	greg	1.5	if (checkheader(input, COLRFMT, NULL) < 0) {
61			fprintf(stderr, "%s: not a Radiance picture\n", fname);
62			return(-1);
63			}
64	greg	1.1	/* get picture dimensions */
65	greg	1.7	if (fgetresolu(&xres, &yres, input) < 0) {
66	greg	1.1	fprintf(stderr, "%s: bad picture size\n", fname);
67			return(-1);
68			}
69			if (xres > NCOLS) {
70			fprintf(stderr, "%s: resolution mismatch\n", fname);
71			return(-1);
72			}
73			/*
74			* Set 180 dpi, 3 planes, left margin and width.
75			*/
76			printf("\033t180R\033r3U\033&a%dH\033r%dS\033r1A",
77			((NCOLS-xres)>>4)<<5, xres);
78
79			for (i = yres-1; i >= 0; i--) {
80	greg	1.2	if (freadcolrs(scanline, xres, input) < 0)
81	greg	1.1	return(-1);
82	greg	1.4	normcolrs(scanline, xres, 0);
83	greg	1.1	plotscan(scanline, xres, i);
84			}
85
86			printf("\033*r0B\f");
87
88			fclose(input);
89
90			return(0);
91	greg	1.2	}
92
93
94	greg	1.1	plotscan(scan, len, y) /* plot a scanline */
95	greg	1.2	COLR scan[];
96	greg	1.1	int len;
97			int y;
98			{
99			int c;
100			register int x, b;
101
102			for (c = 0; c < 3; c++) {
103			printf("\033*b%d%c", (len+7)>>3, c<2 ? 'V' : 'W');
104			b = 0;
105			for (x = 0; x < len; x++) {
106			b = b<<1 \| colbit(scan[x], x, c);
107			if ((x&7) == 7) {
108			putc(b, stdout);
109			b = 0;
110			}
111			}
112			if (x & 7)
113			putc(b, stdout);
114			}
115			}
116
117
118			colbit(col, x, a) /* determine bit value for primary at x */
119	greg	1.2	COLR col;
120	greg	1.1	register int x;
121			register int a;
122			{
123	greg	1.2	static int cerr[NCOLS][3];
124	greg	2.2	static int err[3];
125			int b, errp;
126	greg	1.1	register int ison;
127
128	greg	1.2	b = col[a];
129	greg	2.2	errp = err[a];
130	greg	1.1	err[a] += b + cerr[x][a];
131	greg	1.2	ison = err[a] > 128;
132			if (ison) err[a] -= 256;
133	greg	1.6	err[a] /= 3;
134	greg	2.2	cerr[x][a] = err[a] + errp;
135	greg	1.1	return(ison);
136			}