src/px/oki20.c

#ifndef lint
static const char       RCSid[] = "$Id: oki20.c,v 2.12 2003/11/10 12:28:56 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",NCOLS,NROWS,ASPECT
#define  FILTER_F       "pfilt -1 -x %d -y %d -p %f \"%s\"",NCOLS,NROWS,ASPECT

long  lpat[NCOLS];

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

static int printp(char  *fname);
static void plotscan(COLR  scan[], int  len, int  y);
static int bit(COLR  col, int  x);


int
main(
        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);
}


static int
printp(                         /* print a picture */
        char  *fname
)
{
        char  buf[PATH_MAX];
        FILE  *input;
        int  xres, yres;
        COLR  scanline[NCOLS];
        int  i;

        if (dofilter) {
                if (fname == NULL) {
                        sprintf(buf, FILTER);
                        fname = "<stdin>";
                } else
                        sprintf(buf, FILTER_F, 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);
}


static void
plotscan(                       /* 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);
}


static int
bit(            /* 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:	2.13
Committed:	Sun Mar 28 20:33:14 2004 UTC (20 years, 1 month ago) by schorsch
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R6P1, rad3R6
Changes since 2.12:	+25 -13 lines
Log Message:	Continued ANSIfication, and other fixes and clarifications.
#	User	Rev	Content
1	greg	2.1	#ifndef lint
2	schorsch	2.13	static const char RCSid[] = "$Id: oki20.c,v 2.12 2003/11/10 12:28:56 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	schorsch	2.12	#define FILTER "pfilt -1 -x %d -y %d -p %f",NCOLS,NROWS,ASPECT
22			#define FILTER_F "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	schorsch	2.13	static int printp(char *fname);
29			static void plotscan(COLR scan[], int len, int y);
30			static int bit(COLR col, int x);
31	greg	2.6
32	schorsch	2.13
33			int
34			main(
35			int argc,
36			char *argv[]
37			)
38	greg	2.1	{
39			int i, status = 0;
40	schorsch	2.10	SET_DEFAULT_BINARY();
41			SET_FILE_BINARY(stdin);
42			SET_FILE_BINARY(stdout);
43	greg	2.1	if (argc > 1 && !strcmp(argv[1], "-p")) {
44			dofilter++;
45			argv++; argc--;
46			}
47			if (argc < 2)
48			status = printp(NULL) == -1;
49			else
50			for (i = 1; i < argc; i++)
51			status += printp(argv[i]) == -1;
52			exit(status);
53			}
54
55
56	schorsch	2.13	static int
57			printp( /* print a picture */
58			char *fname
59			)
60	greg	2.1	{
61	schorsch	2.12	char buf[PATH_MAX];
62	greg	2.1	FILE *input;
63			int xres, yres;
64			COLR scanline[NCOLS];
65			int i;
66
67			if (dofilter) {
68	greg	2.2	if (fname == NULL) {
69	schorsch	2.12	sprintf(buf, FILTER);
70	greg	2.2	fname = "<stdin>";
71			} else
72	schorsch	2.12	sprintf(buf, FILTER_F, fname);
73	greg	2.1	if ((input = popen(buf, "r")) == NULL) {
74			fprintf(stderr, "Cannot execute: %s\n", buf);
75			return(-1);
76			}
77			} else if (fname == NULL) {
78			input = stdin;
79			fname = "<stdin>";
80			} else if ((input = fopen(fname, "r")) == NULL) {
81			fprintf(stderr, "%s: cannot open\n", fname);
82			return(-1);
83			}
84			/* discard header */
85			if (checkheader(input, COLRFMT, NULL) < 0) {
86			fprintf(stderr, "%s: not a Radiance picture\n", fname);
87			return(-1);
88			}
89			/* get picture dimensions */
90			if (fgetresolu(&xres, &yres, input) < 0) {
91			fprintf(stderr, "%s: bad picture size\n", fname);
92			return(-1);
93			}
94	greg	2.3	if (xres > NCOLS) {
95	greg	2.1	fprintf(stderr, "%s: resolution mismatch\n", fname);
96			return(-1);
97			}
98			/* set line spacing (overlap for knitting) */
99	greg	2.4	fputs("\0333\042\022", stdout);
100	greg	2.1	/* put out scanlines */
101			for (i = yres-1; i >= 0; i--) {
102			if (freadcolrs(scanline, xres, input) < 0) {
103			fprintf(stderr, "%s: read error (y=%d)\n", fname, i);
104			return(-1);
105			}
106			normcolrs(scanline, xres, 0);
107			plotscan(scanline, xres, i);
108			}
109			/* advance page */
110			putchar('\f');
111
112			if (dofilter)
113			pclose(input);
114			else
115			fclose(input);
116
117			return(0);
118			}
119
120
121	schorsch	2.13	static void
122			plotscan( /* plot a scanline */
123			COLR scan[],
124			int len,
125			int y
126			)
127	greg	2.1	{
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	schorsch	2.13	static int
174			bit( /* determine bit value for pixel at x */
175			COLR col,
176			register int x
177			)
178	greg	2.1	{
179			static int cerr[NCOLS];
180			static int err;
181			int b, errp;
182			register int ison;
183
184			b = normbright(col);
185			errp = err;
186			err += b + cerr[x];
187			ison = err < 128;
188			if (!ison) err -= 256;
189			err /= 3;
190			cerr[x] = err + errp;
191			return(ison);
192			}