src/px/oki20c.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 *  oki20c.c - program to dump pixel file to OkiMate 20 color printer.
 */

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

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

#define  NROWS          1440            /* 10" at 144 dpi */
#define  NCOLS          960             /* 8" at 120 dpi */

#define  ASPECT         (120./144.)     /* pixel aspect ratio */

#define  FILTER         "pfilt -1 -x %d -y %d -p %f %s",NCOLS,NROWS,ASPECT

/*
 *  Subtractive primaries are ordered:  Yellow, Magenta, Cyan.
 */

#define  sub_add(sub)   (2-(sub))       /* map subtractive to additive pri. */

long  lpat[NCOLS][3];

int  dofilter = 0;              /* filter through pfilt first? */

extern FILE  *popen();


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 > 1 && !strcmp(argv[1], "-p")) {
                dofilter++;
                argv++; argc--;
        }
        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;
{
        char  buf[64];
        FILE  *input;
        int  xres, yres;
        COLR  scanline[NCOLS];
        int  i;

        if (dofilter) {
                if (fname == NULL) {
                        sprintf(buf, FILTER, "");
                        fname = "<stdin>";
                } else
                        sprintf(buf, FILTER, fname);
                if ((input = popen(buf, "r")) == NULL) {
                        fprintf(stderr, "Cannot execute: %s\n", buf);
                        return(-1);
                }
        } else 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 line spacing (overlap for knitting) */
        fputs("\0333\042", stdout);
                                /* put out scanlines */
        for (i = yres-1; i >= 0; i--) {
                if (freadcolrs(scanline, xres, input) < 0) {
                        fprintf(stderr, "%s: read error (y=%d)\n", fname, i);
                        return(-1);
                }
                normcolrs(scanline, xres, 0);
                plotscan(scanline, xres, i);
        }
                                /* advance page */
        putchar('\f');
        
        if (dofilter)
                pclose(input);
        else
                fclose(input);

        return(0);
}


plotscan(scan, len, y)                  /* plot a scanline */
COLR  scan[];
int  len;
int  y;
{
        int  bpos;
        register long  c;
        register int  i, j;

        if (bpos = y % 23) {

                for (j = 0; j < 3; j++)
                        for (i = 0; i < len; i++)
                                lpat[i][j] |= (long)colbit(scan[i],i,j) << bpos;
                return;
        }
        fputs("\033\031", stdout);

        for (j = 0; j < 3; j++) {
                i = (NCOLS + len)/2;            /* center image */
                fputs("\033%O", stdout);
                putchar(i & 255);
                putchar(i >> 8);
                while (i-- > len) {
                        putchar(0);
                        putchar(0);
                        putchar(0);
                }
                for (i = 0; i < len; i++) {
                        c = lpat[i][j] | colbit(scan[i],i,j);
                        putchar((int)(c>>16));
                        putchar((int)(c>>8 & 255));
                        putchar((int)(c & 255));
                        if (y)                  /* repeat this row */
                                lpat[i][j] = (c & 1) << 23;
                        else                    /* or clear for next image */
                                lpat[i][j] = 0L;
                }
                putchar('\r');
        }
        putchar('\n');
        fflush(stdout);
}


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

        a = sub_add(s);                 /* use additive primary */
        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:	2.11
Committed:	Sat Feb 22 02:07:27 2003 UTC (21 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R5
Changes since 2.10:	+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	2.11	static const char RCSid[] = "$Id$";
3	greg	1.1	#endif
4			/*
5			* oki20c.c - program to dump pixel file to OkiMate 20 color printer.
6			*/
7
8			#include <stdio.h>
9	greg	2.9	#ifdef MSDOS
10			#include <fcntl.h>
11			#endif
12	greg	2.11	#include <time.h>
13	greg	1.1
14			#include "color.h"
15	greg	1.12	#include "resolu.h"
16	greg	1.1
17	greg	2.9	#define NROWS 1440 /* 10" at 144 dpi */
18			#define NCOLS 960 /* 8" at 120 dpi */
19	greg	1.1
20	greg	2.9	#define ASPECT (120./144.) /* pixel aspect ratio */
21	greg	2.3
22	greg	2.9	#define FILTER "pfilt -1 -x %d -y %d -p %f %s",NCOLS,NROWS,ASPECT
23	greg	2.3
24	greg	1.1	/*
25	greg	2.9	* Subtractive primaries are ordered: Yellow, Magenta, Cyan.
26	greg	1.1	*/
27
28	greg	2.9	#define sub_add(sub) (2-(sub)) /* map subtractive to additive pri. */
29	greg	1.1
30	greg	1.9	long lpat[NCOLS][3];
31
32	greg	2.3	int dofilter = 0; /* filter through pfilt first? */
33	greg	1.9
34	greg	2.9	extern FILE *popen();
35	greg	2.3
36	greg	2.9
37	greg	1.1	main(argc, argv)
38			int argc;
39			char *argv[];
40			{
41			int i, status = 0;
42	greg	2.9	#ifdef MSDOS
43			extern int _fmode;
44			_fmode = O_BINARY;
45			setmode(fileno(stdin), O_BINARY);
46			setmode(fileno(stdout), O_BINARY);
47			#endif
48	greg	2.3	if (argc > 1 && !strcmp(argv[1], "-p")) {
49			dofilter++;
50			argv++; argc--;
51			}
52	greg	1.1	if (argc < 2)
53			status = printp(NULL) == -1;
54			else
55			for (i = 1; i < argc; i++)
56			status += printp(argv[i]) == -1;
57			exit(status);
58			}
59
60
61			printp(fname) /* print a picture */
62			char *fname;
63			{
64	greg	2.3	char buf[64];
65	greg	1.1	FILE *input;
66			int xres, yres;
67	greg	1.6	COLR scanline[NCOLS];
68	greg	1.1	int i;
69
70	greg	2.3	if (dofilter) {
71	greg	2.6	if (fname == NULL) {
72			sprintf(buf, FILTER, "");
73			fname = "<stdin>";
74			} else
75			sprintf(buf, FILTER, fname);
76	greg	2.3	if ((input = popen(buf, "r")) == NULL) {
77			fprintf(stderr, "Cannot execute: %s\n", buf);
78			return(-1);
79			}
80			} else if (fname == NULL) {
81	greg	1.1	input = stdin;
82			fname = "<stdin>";
83			} else if ((input = fopen(fname, "r")) == NULL) {
84			fprintf(stderr, "%s: cannot open\n", fname);
85			return(-1);
86			}
87			/* discard header */
88	greg	1.10	if (checkheader(input, COLRFMT, NULL) < 0) {
89			fprintf(stderr, "%s: not a Radiance picture\n", fname);
90			return(-1);
91			}
92	greg	1.1	/* get picture dimensions */
93	greg	1.12	if (fgetresolu(&xres, &yres, input) < 0) {
94	greg	1.1	fprintf(stderr, "%s: bad picture size\n", fname);
95			return(-1);
96			}
97	greg	2.7	if (xres > NCOLS) {
98	greg	1.1	fprintf(stderr, "%s: resolution mismatch\n", fname);
99			return(-1);
100			}
101	greg	1.3	/* set line spacing (overlap for knitting) */
102	greg	1.5	fputs("\0333\042", stdout);
103	greg	1.3	/* put out scanlines */
104	greg	1.1	for (i = yres-1; i >= 0; i--) {
105	greg	1.6	if (freadcolrs(scanline, xres, input) < 0) {
106	greg	1.1	fprintf(stderr, "%s: read error (y=%d)\n", fname, i);
107			return(-1);
108			}
109	greg	1.8	normcolrs(scanline, xres, 0);
110	greg	1.1	plotscan(scanline, xres, i);
111			}
112	greg	1.3	/* advance page */
113	greg	1.1	putchar('\f');
114
115	greg	2.3	if (dofilter)
116			pclose(input);
117			else
118			fclose(input);
119	greg	1.1
120			return(0);
121	greg	1.6	}
122
123
124	greg	1.1	plotscan(scan, len, y) /* plot a scanline */
125	greg	1.6	COLR scan[];
126	greg	1.1	int len;
127			int y;
128			{
129			int bpos;
130			register long c;
131			register int i, j;
132
133	greg	1.5	if (bpos = y % 23) {
134	greg	1.1
135	greg	1.5	for (j = 0; j < 3; j++)
136			for (i = 0; i < len; i++)
137	greg	1.9	lpat[i][j] \|= (long)colbit(scan[i],i,j) << bpos;
138	greg	2.8	return;
139			}
140			fputs("\033\031", stdout);
141	greg	1.1
142	greg	2.8	for (j = 0; j < 3; j++) {
143			i = (NCOLS + len)/2; /* center image */
144			fputs("\033%O", stdout);
145			putchar(i & 255);
146			putchar(i >> 8);
147			while (i-- > len) {
148			putchar(0);
149			putchar(0);
150			putchar(0);
151			}
152			for (i = 0; i < len; i++) {
153			c = lpat[i][j] \| colbit(scan[i],i,j);
154	greg	2.9	putchar((int)(c>>16));
155			putchar((int)(c>>8 & 255));
156			putchar((int)(c & 255));
157	greg	2.8	if (y) /* repeat this row */
158	greg	1.9	lpat[i][j] = (c & 1) << 23;
159	greg	2.8	else /* or clear for next image */
160			lpat[i][j] = 0L;
161	greg	1.1	}
162	greg	2.8	putchar('\r');
163	greg	1.1	}
164	greg	2.8	putchar('\n');
165			fflush(stdout);
166	greg	1.1	}
167
168
169			colbit(col, x, s) /* determine bit value for primary at x */
170	greg	1.6	COLR col;
171	greg	1.1	register int x;
172			int s;
173			{
174	greg	1.6	static int cerr[NCOLS][3];
175	greg	2.2	static int err[3];
176			int b, errp;
177	greg	1.1	register int a, ison;
178
179			a = sub_add(s); /* use additive primary */
180	greg	1.6	b = col[a];
181	greg	2.2	errp = err[a];
182	greg	1.1	err[a] += b + cerr[x][a];
183	greg	1.6	ison = err[a] < 128;
184			if (!ison) err[a] -= 256;
185	greg	1.11	err[a] /= 3;
186	greg	2.2	cerr[x][a] = err[a] + errp;
187	greg	1.1	return(ison);
188			}