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greg |
1.12 |
/* Copyright (c) 1991 Regents of the University of California */ |
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greg |
1.1 |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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/* |
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* oki20c.c - program to dump pixel file to OkiMate 20 color printer. |
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* |
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* 6/10/87 |
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*/ |
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#include <stdio.h> |
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#include "color.h" |
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greg |
1.12 |
#include "resolu.h" |
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greg |
1.1 |
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#define NROWS 1440 /* 10" at 144 dpi */ |
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#define NCOLS 960 /* 8" at 120 dpi */ |
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greg |
2.3 |
#define ASPECT (120./144.) /* pixel aspect ratio */ |
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#define FILTER "pfilt -1 -x %d -y %d -p %f %s",NCOLS,NROWS,ASPECT |
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greg |
1.1 |
/* |
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* Subtractive primaries are ordered: Yellow, Magenta, Cyan. |
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*/ |
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#define sub_add(sub) (2-(sub)) /* map subtractive to additive pri. */ |
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greg |
1.9 |
#ifdef BSD |
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#define clearlbuf() bzero((char *)lpat, sizeof(lpat)) |
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#else |
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#define clearlbuf() (void)memset((char *)lpat, 0, sizeof(lpat)) |
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#endif |
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greg |
1.1 |
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greg |
1.9 |
long lpat[NCOLS][3]; |
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greg |
2.3 |
int dofilter = 0; /* filter through pfilt first? */ |
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greg |
1.9 |
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greg |
2.3 |
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greg |
1.1 |
main(argc, argv) |
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int argc; |
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char *argv[]; |
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{ |
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int i, status = 0; |
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greg |
2.3 |
if (argc > 1 && !strcmp(argv[1], "-p")) { |
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dofilter++; |
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argv++; argc--; |
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} |
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greg |
1.1 |
if (argc < 2) |
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status = printp(NULL) == -1; |
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else |
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for (i = 1; i < argc; i++) |
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status += printp(argv[i]) == -1; |
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exit(status); |
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} |
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printp(fname) /* print a picture */ |
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char *fname; |
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{ |
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greg |
2.3 |
char buf[64]; |
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greg |
1.1 |
FILE *input; |
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int xres, yres; |
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greg |
1.6 |
COLR scanline[NCOLS]; |
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greg |
1.1 |
int i; |
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greg |
2.3 |
if (dofilter) { |
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if (fname == NULL) |
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fname = ""; |
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sprintf(buf, FILTER, fname); |
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if ((input = popen(buf, "r")) == NULL) { |
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fprintf(stderr, "Cannot execute: %s\n", buf); |
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return(-1); |
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} |
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fname = buf; |
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} else if (fname == NULL) { |
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greg |
1.1 |
input = stdin; |
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fname = "<stdin>"; |
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} else if ((input = fopen(fname, "r")) == NULL) { |
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fprintf(stderr, "%s: cannot open\n", fname); |
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return(-1); |
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} |
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/* discard header */ |
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greg |
1.10 |
if (checkheader(input, COLRFMT, NULL) < 0) { |
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fprintf(stderr, "%s: not a Radiance picture\n", fname); |
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return(-1); |
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} |
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greg |
1.1 |
/* get picture dimensions */ |
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greg |
1.12 |
if (fgetresolu(&xres, &yres, input) < 0) { |
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greg |
1.1 |
fprintf(stderr, "%s: bad picture size\n", fname); |
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return(-1); |
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} |
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if (xres > NCOLS || yres > NROWS) { |
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fprintf(stderr, "%s: resolution mismatch\n", fname); |
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return(-1); |
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} |
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greg |
1.3 |
/* set line spacing (overlap for knitting) */ |
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greg |
1.5 |
fputs("\0333\042", stdout); |
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greg |
1.9 |
/* clear line buffer */ |
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clearlbuf(); |
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greg |
2.3 |
#ifdef _IOLBF |
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stdout->_flag &= ~_IOLBF; |
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#endif |
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greg |
1.3 |
/* put out scanlines */ |
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greg |
1.1 |
for (i = yres-1; i >= 0; i--) { |
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greg |
1.6 |
if (freadcolrs(scanline, xres, input) < 0) { |
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greg |
1.1 |
fprintf(stderr, "%s: read error (y=%d)\n", fname, i); |
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return(-1); |
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} |
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greg |
1.8 |
normcolrs(scanline, xres, 0); |
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greg |
1.1 |
plotscan(scanline, xres, i); |
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} |
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greg |
1.3 |
/* advance page */ |
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greg |
1.1 |
putchar('\f'); |
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greg |
2.3 |
if (dofilter) |
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pclose(input); |
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else |
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fclose(input); |
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greg |
1.1 |
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return(0); |
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greg |
1.6 |
} |
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greg |
1.1 |
plotscan(scan, len, y) /* plot a scanline */ |
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greg |
1.6 |
COLR scan[]; |
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greg |
1.1 |
int len; |
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int y; |
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{ |
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int bpos; |
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register long c; |
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register int i, j; |
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greg |
1.5 |
if (bpos = y % 23) { |
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greg |
1.1 |
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greg |
1.5 |
for (j = 0; j < 3; j++) |
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for (i = 0; i < len; i++) |
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greg |
1.9 |
lpat[i][j] |= (long)colbit(scan[i],i,j) << bpos; |
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greg |
1.1 |
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} else { |
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fputs("\033\031", stdout); |
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for (j = 0; j < 3; j++) { |
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greg |
2.4 |
i = (NCOLS + len)/2; /* center image */ |
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greg |
1.1 |
fputs("\033%O", stdout); |
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greg |
2.4 |
putchar(i & 255); |
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putchar(i >> 8); |
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while (i-- > len) { |
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putchar(0); |
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putchar(0); |
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putchar(0); |
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} |
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greg |
1.1 |
for (i = 0; i < len; i++) { |
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greg |
1.9 |
c = lpat[i][j] | colbit(scan[i],i,j); |
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greg |
1.5 |
/* repeat this row */ |
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greg |
1.9 |
lpat[i][j] = (c & 1) << 23; |
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greg |
1.5 |
putchar(c>>16); |
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putchar(c>>8 & 255); |
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putchar(c & 255); |
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greg |
1.1 |
} |
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putchar('\r'); |
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} |
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putchar('\n'); |
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greg |
2.3 |
fflush(stdout); |
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greg |
1.1 |
} |
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} |
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colbit(col, x, s) /* determine bit value for primary at x */ |
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greg |
1.6 |
COLR col; |
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greg |
1.1 |
register int x; |
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int s; |
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{ |
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greg |
1.6 |
static int cerr[NCOLS][3]; |
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greg |
2.2 |
static int err[3]; |
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int b, errp; |
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greg |
1.1 |
register int a, ison; |
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a = sub_add(s); /* use additive primary */ |
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greg |
1.6 |
b = col[a]; |
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greg |
2.2 |
errp = err[a]; |
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greg |
1.1 |
err[a] += b + cerr[x][a]; |
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greg |
1.6 |
ison = err[a] < 128; |
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if (!ison) err[a] -= 256; |
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greg |
1.11 |
err[a] /= 3; |
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greg |
2.2 |
cerr[x][a] = err[a] + errp; |
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greg |
1.1 |
return(ison); |
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} |