src/px/oki20.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 *  oki20.c - program to dump pixel file to OkiMate 20 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

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--;
        }
        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:	2.9
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 2.8:	+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	2.1	#ifndef lint
2	greg	2.9	static const char RCSid[] = "$Id$";
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	2.6	#ifdef MSDOS
10			#include <fcntl.h>
11			#endif
12	greg	2.9	#include <time.h>
13	greg	2.1
14			#include "color.h"
15			#include "resolu.h"
16
17	greg	2.6	#define NROWS 1440 /* 10" at 144 dpi */
18			#define NCOLS 960 /* 8" at 120 dpi */
19	greg	2.1
20	greg	2.6	#define ASPECT (120./144.) /* pixel aspect ratio */
21	greg	2.1
22	greg	2.6	#define FILTER "pfilt -1 -x %d -y %d -p %f %s",NCOLS,NROWS,ASPECT
23	greg	2.1
24			long lpat[NCOLS];
25
26			int dofilter = 0; /* filter through pfilt first? */
27
28	greg	2.6	extern FILE *popen();
29	greg	2.1
30	greg	2.6
31	greg	2.1	main(argc, argv)
32			int argc;
33			char *argv[];
34			{
35			int i, status = 0;
36	greg	2.6	#ifdef MSDOS
37			extern int _fmode;
38			_fmode = O_BINARY;
39			setmode(fileno(stdin), O_BINARY);
40			setmode(fileno(stdout), O_BINARY);
41			#endif
42	greg	2.1	if (argc > 1 && !strcmp(argv[1], "-p")) {
43			dofilter++;
44			argv++; argc--;
45			}
46			if (argc < 2)
47			status = printp(NULL) == -1;
48			else
49			for (i = 1; i < argc; i++)
50			status += printp(argv[i]) == -1;
51			exit(status);
52			}
53
54
55			printp(fname) /* print a picture */
56			char *fname;
57			{
58			char buf[64];
59			FILE *input;
60			int xres, yres;
61			COLR scanline[NCOLS];
62			int i;
63
64			if (dofilter) {
65	greg	2.2	if (fname == NULL) {
66			sprintf(buf, FILTER, "");
67			fname = "<stdin>";
68			} else
69			sprintf(buf, FILTER, fname);
70	greg	2.1	if ((input = popen(buf, "r")) == NULL) {
71			fprintf(stderr, "Cannot execute: %s\n", buf);
72			return(-1);
73			}
74			} else if (fname == NULL) {
75			input = stdin;
76			fname = "<stdin>";
77			} else if ((input = fopen(fname, "r")) == NULL) {
78			fprintf(stderr, "%s: cannot open\n", fname);
79			return(-1);
80			}
81			/* discard header */
82			if (checkheader(input, COLRFMT, NULL) < 0) {
83			fprintf(stderr, "%s: not a Radiance picture\n", fname);
84			return(-1);
85			}
86			/* get picture dimensions */
87			if (fgetresolu(&xres, &yres, input) < 0) {
88			fprintf(stderr, "%s: bad picture size\n", fname);
89			return(-1);
90			}
91	greg	2.3	if (xres > NCOLS) {
92	greg	2.1	fprintf(stderr, "%s: resolution mismatch\n", fname);
93			return(-1);
94			}
95			/* set line spacing (overlap for knitting) */
96	greg	2.4	fputs("\0333\042\022", stdout);
97	greg	2.1	/* put out scanlines */
98			for (i = yres-1; i >= 0; i--) {
99			if (freadcolrs(scanline, xres, input) < 0) {
100			fprintf(stderr, "%s: read error (y=%d)\n", fname, i);
101			return(-1);
102			}
103			normcolrs(scanline, xres, 0);
104			plotscan(scanline, xres, i);
105			}
106			/* advance page */
107			putchar('\f');
108
109			if (dofilter)
110			pclose(input);
111			else
112			fclose(input);
113
114			return(0);
115			}
116
117
118			plotscan(scan, len, y) /* plot a scanline */
119			COLR scan[];
120			int len;
121			int y;
122			{
123	greg	2.4	int bpos, start, end;
124	greg	2.1	register long c;
125			register int i;
126
127	greg	2.4	bpos = y % 23;
128			for (i = 0; i < len; i++)
129			lpat[i] \|= (long)bit(scan[i],i) << bpos;
130	greg	2.1
131	greg	2.4	if (bpos)
132			return;
133			/* find limits of non-zero print buffer */
134			for (i = 0; lpat[i] == 0; i++)
135			if (i == len-1) {
136			putchar('\n');
137			return;
138	greg	2.1	}
139	greg	2.4	start = i - i%12;
140			i = len;
141			while (lpat[--i] == 0)
142			;
143			end = i;
144			/* skip to start position */
145			for (i = start/12; i-- > 0; )
146			putchar(' ');
147			/* print non-zero portion of buffer */
148			fputs("\033%O", stdout);
149			i = end+1-start;
150			putchar(i & 255);
151			putchar(i >> 8);
152			for (i = start; i <= end; i++) {
153			c = lpat[i];
154	greg	2.6	putchar((int)(c>>16));
155			putchar((int)(c>>8 & 255));
156			putchar((int)(c & 255));
157	greg	2.5	if (y) /* repeat this row next time */
158			lpat[i] = (c & 1) << 23;
159			else /* or clear for next image */
160			lpat[i] = 0L;
161	greg	2.1	}
162	greg	2.4	putchar('\r');
163			putchar('\n');
164			fflush(stdout);
165	greg	2.1	}
166
167
168			bit(col, x) /* determine bit value for pixel at x */
169			COLR col;
170			register int x;
171			{
172			static int cerr[NCOLS];
173			static int err;
174			int b, errp;
175			register int ison;
176
177			b = normbright(col);
178			errp = err;
179			err += b + cerr[x];
180			ison = err < 128;
181			if (!ison) err -= 256;
182			err /= 3;
183			cerr[x] = err + errp;
184			return(ison);
185			}