src/px/oki20c.c

#ifndef lint
static const char       RCSid[] = "$Id: oki20c.c,v 2.15 2003/11/10 12:28:56 schorsch Exp $";
#endif
/*
 *  oki20c.c - program to dump pixel file to OkiMate 20 color 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

/*
 *  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? */

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


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", 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;
        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);
}


static int
colbit(         /* 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:	2.16
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 2.15:	+26 -14 lines
Log Message:	Continued ANSIfication, and other fixes and clarifications.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	2.16	static const char RCSid[] = "$Id: oki20c.c,v 2.15 2003/11/10 12:28:56 schorsch Exp $";
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	2.11	#include <time.h>
10	greg	1.1
11	schorsch	2.12	#include "platform.h"
12	schorsch	2.14	#include "rtprocess.h"
13	greg	1.1	#include "color.h"
14	greg	1.12	#include "resolu.h"
15	greg	1.1
16	greg	2.9	#define NROWS 1440 /* 10" at 144 dpi */
17			#define NCOLS 960 /* 8" at 120 dpi */
18	greg	1.1
19	greg	2.9	#define ASPECT (120./144.) /* pixel aspect ratio */
20	greg	2.3
21	schorsch	2.15	#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	2.3
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
34	schorsch	2.16	static int printp(char *fname);
35			static void plotscan(COLR scan[], int len, int y);
36			static int colbit(COLR col, int x, int s);
37	greg	2.9
38	schorsch	2.16
39			int
40			main(
41			int argc,
42			char *argv[]
43			)
44	greg	1.1	{
45			int i, status = 0;
46	schorsch	2.12	SET_DEFAULT_BINARY();
47			SET_FILE_BINARY(stdin);
48			SET_FILE_BINARY(stdout);
49	greg	2.3	if (argc > 1 && !strcmp(argv[1], "-p")) {
50			dofilter++;
51			argv++; argc--;
52			}
53	greg	1.1	if (argc < 2)
54			status = printp(NULL) == -1;
55			else
56			for (i = 1; i < argc; i++)
57			status += printp(argv[i]) == -1;
58			exit(status);
59			}
60
61
62	schorsch	2.16	static int
63			printp( /* print a picture */
64			char *fname
65			)
66	greg	1.1	{
67	schorsch	2.15	char buf[PATH_MAX];
68	greg	1.1	FILE *input;
69			int xres, yres;
70	greg	1.6	COLR scanline[NCOLS];
71	greg	1.1	int i;
72
73	greg	2.3	if (dofilter) {
74	greg	2.6	if (fname == NULL) {
75	schorsch	2.15	sprintf(buf, FILTER);
76	greg	2.6	fname = "<stdin>";
77			} else
78	schorsch	2.15	sprintf(buf, FILTER_F, fname);
79	greg	2.3	if ((input = popen(buf, "r")) == NULL) {
80			fprintf(stderr, "Cannot execute: %s\n", buf);
81			return(-1);
82			}
83			} else if (fname == NULL) {
84	greg	1.1	input = stdin;
85			fname = "<stdin>";
86			} else if ((input = fopen(fname, "r")) == NULL) {
87			fprintf(stderr, "%s: cannot open\n", fname);
88			return(-1);
89			}
90			/* discard header */
91	greg	1.10	if (checkheader(input, COLRFMT, NULL) < 0) {
92			fprintf(stderr, "%s: not a Radiance picture\n", fname);
93			return(-1);
94			}
95	greg	1.1	/* get picture dimensions */
96	greg	1.12	if (fgetresolu(&xres, &yres, input) < 0) {
97	greg	1.1	fprintf(stderr, "%s: bad picture size\n", fname);
98			return(-1);
99			}
100	greg	2.7	if (xres > NCOLS) {
101	greg	1.1	fprintf(stderr, "%s: resolution mismatch\n", fname);
102			return(-1);
103			}
104	greg	1.3	/* set line spacing (overlap for knitting) */
105	greg	1.5	fputs("\0333\042", stdout);
106	greg	1.3	/* put out scanlines */
107	greg	1.1	for (i = yres-1; i >= 0; i--) {
108	greg	1.6	if (freadcolrs(scanline, xres, input) < 0) {
109	greg	1.1	fprintf(stderr, "%s: read error (y=%d)\n", fname, i);
110			return(-1);
111			}
112	greg	1.8	normcolrs(scanline, xres, 0);
113	greg	1.1	plotscan(scanline, xres, i);
114			}
115	greg	1.3	/* advance page */
116	greg	1.1	putchar('\f');
117
118	greg	2.3	if (dofilter)
119			pclose(input);
120			else
121			fclose(input);
122	greg	1.1
123			return(0);
124	greg	1.6	}
125
126
127	schorsch	2.16	static void
128			plotscan( /* plot a scanline */
129			COLR scan[],
130			int len,
131			int y
132			)
133	greg	1.1	{
134			int bpos;
135			register long c;
136			register int i, j;
137
138	schorsch	2.13	if ( (bpos = y % 23) ) {
139	greg	1.1
140	greg	1.5	for (j = 0; j < 3; j++)
141			for (i = 0; i < len; i++)
142	greg	1.9	lpat[i][j] \|= (long)colbit(scan[i],i,j) << bpos;
143	greg	2.8	return;
144			}
145			fputs("\033\031", stdout);
146	greg	1.1
147	greg	2.8	for (j = 0; j < 3; j++) {
148			i = (NCOLS + len)/2; /* center image */
149			fputs("\033%O", stdout);
150			putchar(i & 255);
151			putchar(i >> 8);
152			while (i-- > len) {
153			putchar(0);
154			putchar(0);
155			putchar(0);
156			}
157			for (i = 0; i < len; i++) {
158			c = lpat[i][j] \| colbit(scan[i],i,j);
159	greg	2.9	putchar((int)(c>>16));
160			putchar((int)(c>>8 & 255));
161			putchar((int)(c & 255));
162	greg	2.8	if (y) /* repeat this row */
163	greg	1.9	lpat[i][j] = (c & 1) << 23;
164	greg	2.8	else /* or clear for next image */
165			lpat[i][j] = 0L;
166	greg	1.1	}
167	greg	2.8	putchar('\r');
168	greg	1.1	}
169	greg	2.8	putchar('\n');
170			fflush(stdout);
171	greg	1.1	}
172
173
174	schorsch	2.16	static int
175			colbit( /* determine bit value for primary at x */
176			COLR col,
177			register int x,
178			int s
179			)
180	greg	1.1	{
181	greg	1.6	static int cerr[NCOLS][3];
182	greg	2.2	static int err[3];
183			int b, errp;
184	greg	1.1	register int a, ison;
185
186			a = sub_add(s); /* use additive primary */
187	greg	1.6	b = col[a];
188	greg	2.2	errp = err[a];
189	greg	1.1	err[a] += b + cerr[x][a];
190	greg	1.6	ison = err[a] < 128;
191			if (!ison) err[a] -= 256;
192	greg	1.11	err[a] /= 3;
193	greg	2.2	cerr[x][a] = err[a] + errp;
194	greg	1.1	return(ison);
195			}