src/px/oki20.c

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

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

/*
 *  oki20c.c - program to dump pixel file to OkiMate 20 color printer.
 */

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

#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

long  lpat[NCOLS];

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--;
        }
#ifdef _IOLBF
        stdout->_flag &= ~_IOLBF;
#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;
{
        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\022", 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, start, end;
        register long  c;
        register int  i;

        bpos = y % 23;
        for (i = 0; i < len; i++)
                lpat[i] |= (long)bit(scan[i],i) << bpos;

        if (bpos)
                return;
                                /* find limits of non-zero print buffer */
        for (i = 0; lpat[i] == 0; i++)
                if (i == len-1) {
                        putchar('\n');
                        return;
                }
        start = i - i%12;
        i = len;
        while (lpat[--i] == 0)
                ;
        end = i;
                                /* skip to start position */
        for (i = start/12; i-- > 0; )
                putchar(' ');
                                /* print non-zero portion of buffer */
        fputs("\033%O", stdout);
        i = end+1-start;
        putchar(i & 255);
        putchar(i >> 8);
        for (i = start; i <= end; i++) {
                c = lpat[i];
                putchar((int)(c>>16));
                putchar((int)(c>>8 & 255));
                putchar((int)(c & 255));
                if (y)                  /* repeat this row next time */
                        lpat[i] = (c & 1) << 23;
                else                    /* or clear for next image */
                        lpat[i] = 0L;
        }
        putchar('\r');
        putchar('\n');
        fflush(stdout);
}


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

        b = normbright(col);
        errp = err;
        err += b + cerr[x];
        ison = err < 128;
        if (!ison) err -= 256;
        err /= 3;
        cerr[x] = err + errp;
        return(ison);
}
Revision:	2.6
Committed:	Mon Sep 21 12:13:33 1992 UTC (31 years, 7 months ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.5:	+18 -8 lines
Log Message:	Changes for PC port
#	User	Rev	Content
1	greg	2.1	/* Copyright (c) 1992 Regents of the University of California */
2
3			#ifndef lint
4			static char SCCSid[] = "$SunId$ LBL";
5			#endif
6
7			/*
8			* oki20c.c - program to dump pixel file to OkiMate 20 color printer.
9			*/
10
11			#include <stdio.h>
12	greg	2.6	#ifdef MSDOS
13			#include <fcntl.h>
14			#endif
15	greg	2.1
16			#include "color.h"
17			#include "resolu.h"
18
19	greg	2.6	#define NROWS 1440 /* 10" at 144 dpi */
20			#define NCOLS 960 /* 8" at 120 dpi */
21	greg	2.1
22	greg	2.6	#define ASPECT (120./144.) /* pixel aspect ratio */
23	greg	2.1
24	greg	2.6	#define FILTER "pfilt -1 -x %d -y %d -p %f %s",NCOLS,NROWS,ASPECT
25	greg	2.1
26			long lpat[NCOLS];
27
28			int dofilter = 0; /* filter through pfilt first? */
29
30	greg	2.6	extern FILE *popen();
31	greg	2.1
32	greg	2.6
33	greg	2.1	main(argc, argv)
34			int argc;
35			char *argv[];
36			{
37			int i, status = 0;
38	greg	2.6	#ifdef MSDOS
39			extern int _fmode;
40			_fmode = O_BINARY;
41			setmode(fileno(stdin), O_BINARY);
42			setmode(fileno(stdout), O_BINARY);
43			#endif
44	greg	2.1	if (argc > 1 && !strcmp(argv[1], "-p")) {
45			dofilter++;
46			argv++; argc--;
47			}
48			#ifdef _IOLBF
49			stdout->_flag &= ~_IOLBF;
50			#endif
51			if (argc < 2)
52			status = printp(NULL) == -1;
53			else
54			for (i = 1; i < argc; i++)
55			status += printp(argv[i]) == -1;
56			exit(status);
57			}
58
59
60			printp(fname) /* print a picture */
61			char *fname;
62			{
63			char buf[64];
64			FILE *input;
65			int xres, yres;
66			COLR scanline[NCOLS];
67			int i;
68
69			if (dofilter) {
70	greg	2.2	if (fname == NULL) {
71			sprintf(buf, FILTER, "");
72			fname = "<stdin>";
73			} else
74			sprintf(buf, FILTER, fname);
75	greg	2.1	if ((input = popen(buf, "r")) == NULL) {
76			fprintf(stderr, "Cannot execute: %s\n", buf);
77			return(-1);
78			}
79			} else if (fname == NULL) {
80			input = stdin;
81			fname = "<stdin>";
82			} else if ((input = fopen(fname, "r")) == NULL) {
83			fprintf(stderr, "%s: cannot open\n", fname);
84			return(-1);
85			}
86			/* discard header */
87			if (checkheader(input, COLRFMT, NULL) < 0) {
88			fprintf(stderr, "%s: not a Radiance picture\n", fname);
89			return(-1);
90			}
91			/* get picture dimensions */
92			if (fgetresolu(&xres, &yres, input) < 0) {
93			fprintf(stderr, "%s: bad picture size\n", fname);
94			return(-1);
95			}
96	greg	2.3	if (xres > NCOLS) {
97	greg	2.1	fprintf(stderr, "%s: resolution mismatch\n", fname);
98			return(-1);
99			}
100			/* set line spacing (overlap for knitting) */
101	greg	2.4	fputs("\0333\042\022", stdout);
102	greg	2.1	/* put out scanlines */
103			for (i = yres-1; i >= 0; i--) {
104			if (freadcolrs(scanline, xres, input) < 0) {
105			fprintf(stderr, "%s: read error (y=%d)\n", fname, i);
106			return(-1);
107			}
108			normcolrs(scanline, xres, 0);
109			plotscan(scanline, xres, i);
110			}
111			/* advance page */
112			putchar('\f');
113
114			if (dofilter)
115			pclose(input);
116			else
117			fclose(input);
118
119			return(0);
120			}
121
122
123			plotscan(scan, len, y) /* plot a scanline */
124			COLR scan[];
125			int len;
126			int y;
127			{
128	greg	2.4	int bpos, start, end;
129	greg	2.1	register long c;
130			register int i;
131
132	greg	2.4	bpos = y % 23;
133			for (i = 0; i < len; i++)
134			lpat[i] \|= (long)bit(scan[i],i) << bpos;
135	greg	2.1
136	greg	2.4	if (bpos)
137			return;
138			/* find limits of non-zero print buffer */
139			for (i = 0; lpat[i] == 0; i++)
140			if (i == len-1) {
141			putchar('\n');
142			return;
143	greg	2.1	}
144	greg	2.4	start = i - i%12;
145			i = len;
146			while (lpat[--i] == 0)
147			;
148			end = i;
149			/* skip to start position */
150			for (i = start/12; i-- > 0; )
151			putchar(' ');
152			/* print non-zero portion of buffer */
153			fputs("\033%O", stdout);
154			i = end+1-start;
155			putchar(i & 255);
156			putchar(i >> 8);
157			for (i = start; i <= end; i++) {
158			c = lpat[i];
159	greg	2.6	putchar((int)(c>>16));
160			putchar((int)(c>>8 & 255));
161			putchar((int)(c & 255));
162	greg	2.5	if (y) /* repeat this row next time */
163			lpat[i] = (c & 1) << 23;
164			else /* or clear for next image */
165			lpat[i] = 0L;
166	greg	2.1	}
167	greg	2.4	putchar('\r');
168			putchar('\n');
169			fflush(stdout);
170	greg	2.1	}
171
172
173			bit(col, x) /* determine bit value for pixel at x */
174			COLR col;
175			register int x;
176			{
177			static int cerr[NCOLS];
178			static int err;
179			int b, errp;
180			register int ison;
181
182			b = normbright(col);
183			errp = err;
184			err += b + cerr[x];
185			ison = err < 128;
186			if (!ison) err -= 256;
187			err /= 3;
188			cerr[x] = err + errp;
189			return(ison);
190			}