src/px/oki20.c

#ifndef lint
static const char       RCSid[] = "$Id: oki20.c,v 2.10 2003/06/05 19:29:34 schorsch Exp $";
#endif
/*
 *  oki20.c - program to dump pixel file to OkiMate 20 printer.
 */

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

#include  "platform.h"
#include  "rtprocess.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

long  lpat[NCOLS];

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


main(argc, argv)
int  argc;
char  *argv[];
{
        int  i, status = 0;
        SET_DEFAULT_BINARY();
        SET_FILE_BINARY(stdin);
        SET_FILE_BINARY(stdout);
        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\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:	2.11
Committed:	Mon Oct 27 10:24:51 2003 UTC (20 years, 6 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 2.10:	+2 -3 lines
Log Message:	Various compatibility fixes.
#	User	Rev	Content
1	greg	2.1	#ifndef lint
2	schorsch	2.11	static const char RCSid[] = "$Id: oki20.c,v 2.10 2003/06/05 19:29:34 schorsch Exp $";
3	greg	2.1	#endif
4			/*
5	greg	2.7	* oki20.c - program to dump pixel file to OkiMate 20 printer.
6	greg	2.1	*/
7
8			#include <stdio.h>
9	greg	2.9	#include <time.h>
10	greg	2.1
11	schorsch	2.10	#include "platform.h"
12	schorsch	2.11	#include "rtprocess.h"
13	greg	2.1	#include "color.h"
14			#include "resolu.h"
15
16	greg	2.6	#define NROWS 1440 /* 10" at 144 dpi */
17			#define NCOLS 960 /* 8" at 120 dpi */
18	greg	2.1
19	greg	2.6	#define ASPECT (120./144.) /* pixel aspect ratio */
20	greg	2.1
21	greg	2.6	#define FILTER "pfilt -1 -x %d -y %d -p %f %s",NCOLS,NROWS,ASPECT
22	greg	2.1
23			long lpat[NCOLS];
24
25			int dofilter = 0; /* filter through pfilt first? */
26
27	greg	2.6
28	greg	2.1	main(argc, argv)
29			int argc;
30			char *argv[];
31			{
32			int i, status = 0;
33	schorsch	2.10	SET_DEFAULT_BINARY();
34			SET_FILE_BINARY(stdin);
35			SET_FILE_BINARY(stdout);
36	greg	2.1	if (argc > 1 && !strcmp(argv[1], "-p")) {
37			dofilter++;
38			argv++; argc--;
39			}
40			if (argc < 2)
41			status = printp(NULL) == -1;
42			else
43			for (i = 1; i < argc; i++)
44			status += printp(argv[i]) == -1;
45			exit(status);
46			}
47
48
49			printp(fname) /* print a picture */
50			char *fname;
51			{
52			char buf[64];
53			FILE *input;
54			int xres, yres;
55			COLR scanline[NCOLS];
56			int i;
57
58			if (dofilter) {
59	greg	2.2	if (fname == NULL) {
60			sprintf(buf, FILTER, "");
61			fname = "<stdin>";
62			} else
63			sprintf(buf, FILTER, fname);
64	greg	2.1	if ((input = popen(buf, "r")) == NULL) {
65			fprintf(stderr, "Cannot execute: %s\n", buf);
66			return(-1);
67			}
68			} else if (fname == NULL) {
69			input = stdin;
70			fname = "<stdin>";
71			} else if ((input = fopen(fname, "r")) == NULL) {
72			fprintf(stderr, "%s: cannot open\n", fname);
73			return(-1);
74			}
75			/* discard header */
76			if (checkheader(input, COLRFMT, NULL) < 0) {
77			fprintf(stderr, "%s: not a Radiance picture\n", fname);
78			return(-1);
79			}
80			/* get picture dimensions */
81			if (fgetresolu(&xres, &yres, input) < 0) {
82			fprintf(stderr, "%s: bad picture size\n", fname);
83			return(-1);
84			}
85	greg	2.3	if (xres > NCOLS) {
86	greg	2.1	fprintf(stderr, "%s: resolution mismatch\n", fname);
87			return(-1);
88			}
89			/* set line spacing (overlap for knitting) */
90	greg	2.4	fputs("\0333\042\022", stdout);
91	greg	2.1	/* put out scanlines */
92			for (i = yres-1; i >= 0; i--) {
93			if (freadcolrs(scanline, xres, input) < 0) {
94			fprintf(stderr, "%s: read error (y=%d)\n", fname, i);
95			return(-1);
96			}
97			normcolrs(scanline, xres, 0);
98			plotscan(scanline, xres, i);
99			}
100			/* advance page */
101			putchar('\f');
102
103			if (dofilter)
104			pclose(input);
105			else
106			fclose(input);
107
108			return(0);
109			}
110
111
112			plotscan(scan, len, y) /* plot a scanline */
113			COLR scan[];
114			int len;
115			int y;
116			{
117	greg	2.4	int bpos, start, end;
118	greg	2.1	register long c;
119			register int i;
120
121	greg	2.4	bpos = y % 23;
122			for (i = 0; i < len; i++)
123			lpat[i] \|= (long)bit(scan[i],i) << bpos;
124	greg	2.1
125	greg	2.4	if (bpos)
126			return;
127			/* find limits of non-zero print buffer */
128			for (i = 0; lpat[i] == 0; i++)
129			if (i == len-1) {
130			putchar('\n');
131			return;
132	greg	2.1	}
133	greg	2.4	start = i - i%12;
134			i = len;
135			while (lpat[--i] == 0)
136			;
137			end = i;
138			/* skip to start position */
139			for (i = start/12; i-- > 0; )
140			putchar(' ');
141			/* print non-zero portion of buffer */
142			fputs("\033%O", stdout);
143			i = end+1-start;
144			putchar(i & 255);
145			putchar(i >> 8);
146			for (i = start; i <= end; i++) {
147			c = lpat[i];
148	greg	2.6	putchar((int)(c>>16));
149			putchar((int)(c>>8 & 255));
150			putchar((int)(c & 255));
151	greg	2.5	if (y) /* repeat this row next time */
152			lpat[i] = (c & 1) << 23;
153			else /* or clear for next image */
154			lpat[i] = 0L;
155	greg	2.1	}
156	greg	2.4	putchar('\r');
157			putchar('\n');
158			fflush(stdout);
159	greg	2.1	}
160
161
162			bit(col, x) /* determine bit value for pixel at x */
163			COLR col;
164			register int x;
165			{
166			static int cerr[NCOLS];
167			static int err;
168			int b, errp;
169			register int ison;
170
171			b = normbright(col);
172			errp = err;
173			err += b + cerr[x];
174			ison = err < 128;
175			if (!ison) err -= 256;
176			err /= 3;
177			cerr[x] = err + errp;
178			return(ison);
179			}