| 1 |
/* Copyright (c) 1991 Regents of the University of California */ |
| 2 |
|
| 3 |
#ifndef lint |
| 4 |
static char SCCSid[] = "$SunId$ LBL"; |
| 5 |
#endif |
| 6 |
|
| 7 |
/* |
| 8 |
* pvalue.c - program to print pixel values. |
| 9 |
* |
| 10 |
* 4/23/86 |
| 11 |
*/ |
| 12 |
|
| 13 |
#include <stdio.h> |
| 14 |
|
| 15 |
#include "color.h" |
| 16 |
|
| 17 |
#define min(a,b) ((a)<(b)?(a):(b)) |
| 18 |
|
| 19 |
int xres = 0; /* resolution of input */ |
| 20 |
int yres = 0; |
| 21 |
|
| 22 |
int uniq = 0; /* print only unique values? */ |
| 23 |
|
| 24 |
int original = 0; /* convert back to original values? */ |
| 25 |
|
| 26 |
int dataonly = 0; /* data only format? */ |
| 27 |
|
| 28 |
int brightonly = 0; /* only brightness values? */ |
| 29 |
|
| 30 |
int reverse = 0; /* reverse conversion? */ |
| 31 |
|
| 32 |
int format = 'a'; /* input/output format */ |
| 33 |
char *fmtid = "ascii"; /* format identifier for header */ |
| 34 |
|
| 35 |
int header = 1; /* do header */ |
| 36 |
|
| 37 |
int wrongformat = 0; /* wrong input format? */ |
| 38 |
|
| 39 |
double gamma = 1.0; /* gamma correction */ |
| 40 |
|
| 41 |
COLOR exposure = WHTCOLOR; |
| 42 |
|
| 43 |
char *progname; |
| 44 |
|
| 45 |
FILE *fin; |
| 46 |
|
| 47 |
extern double atof(), pow(); |
| 48 |
|
| 49 |
int (*getval)(), (*putval)(); |
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|
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|
| 52 |
main(argc, argv) |
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int argc; |
| 54 |
char **argv; |
| 55 |
{ |
| 56 |
extern int checkhead(); |
| 57 |
int i; |
| 58 |
|
| 59 |
progname = argv[0]; |
| 60 |
|
| 61 |
for (i = 1; i < argc; i++) |
| 62 |
if (argv[i][0] == '-') |
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switch (argv[i][1]) { |
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case 'h': /* no header */ |
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header = 0; |
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break; |
| 67 |
case 'u': /* unique values */ |
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uniq = 1; |
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break; |
| 70 |
case 'o': /* original values */ |
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original = 1; |
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break; |
| 73 |
case 'g': /* gamma correction */ |
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gamma = atof(argv[++i]); |
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break; |
| 76 |
case 'r': /* reverse conversion */ |
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reverse = 1; |
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break; |
| 79 |
case 'b': /* brightness values */ |
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brightonly = 1; |
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break; |
| 82 |
case 'd': /* data only (no indices) */ |
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dataonly = 1; |
| 84 |
switch (argv[i][2]) { |
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case '\0': |
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case 'a': /* ascii */ |
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format = 'a'; |
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fmtid = "ascii"; |
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break; |
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case 'i': /* integer */ |
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format = 'i'; |
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fmtid = "ascii"; |
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break; |
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case 'b': /* byte */ |
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format = 'b'; |
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fmtid = "byte"; |
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break; |
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case 'f': /* float */ |
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format = 'f'; |
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fmtid = "float"; |
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break; |
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case 'd': /* double */ |
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format = 'd'; |
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fmtid = "double"; |
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break; |
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default: |
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goto unkopt; |
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} |
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break; |
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case 'x': /* x resolution */ |
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xres = atoi(argv[++i]); |
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break; |
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case 'y': /* y resolution */ |
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yres = atoi(argv[++i]); |
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break; |
| 116 |
default: |
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unkopt: |
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fprintf(stderr, "%s: unknown option: %s\n", |
| 119 |
progname, argv[i]); |
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quit(1); |
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break; |
| 122 |
} |
| 123 |
else |
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break; |
| 125 |
/* recognize special formats */ |
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if (dataonly && format == 'b') |
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if (brightonly) |
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fmtid = "8-bit_grey"; |
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else |
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fmtid = "24-bit_rgb"; |
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|
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if (i == argc) { |
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fin = stdin; |
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} else if (i == argc-1) { |
| 135 |
if ((fin = fopen(argv[i], "r")) == NULL) { |
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fprintf(stderr, "%s: can't open file \"%s\"\n", |
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progname, argv[i]); |
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quit(1); |
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} |
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} else { |
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fprintf(stderr, "%s: bad # file arguments\n", progname); |
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quit(1); |
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} |
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|
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set_io(); |
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|
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if (reverse) { |
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if (yres <= 0 || xres <= 0) { |
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fprintf(stderr, "%s: missing x and y resolution\n", |
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progname); |
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quit(1); |
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} |
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/* get header */ |
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if (header && checkheader(fin, fmtid, stdout) < 0) { |
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fprintf(stderr, "%s: wrong input format\n", progname); |
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quit(1); |
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} |
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/* add to header */ |
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printargs(i, argv, stdout); |
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fputformat(COLRFMT, stdout); |
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printf("\n"); |
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fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
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valtopix(); |
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} else { |
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/* get header */ |
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getheader(fin, checkhead, NULL); |
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if (wrongformat) { |
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fprintf(stderr, "%s: input not a Radiance picture\n", |
| 169 |
progname); |
| 170 |
quit(1); |
| 171 |
} |
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|
| 173 |
if (xres <= 0 || yres <= 0) /* get picture size */ |
| 174 |
if (fgetresolu(&xres, &yres, fin) != (YMAJOR|YDECR)) { |
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fprintf(stderr, |
| 176 |
"%s: missing x and y resolution\n", |
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progname); |
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quit(1); |
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} |
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if (header) { |
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printargs(i, argv, stdout); |
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fputformat(fmtid, stdout); |
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printf("\n"); |
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} |
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pixtoval(); |
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} |
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|
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quit(0); |
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} |
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|
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|
| 192 |
checkhead(line) /* deal with line from header */ |
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char *line; |
| 194 |
{ |
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char fmt[32]; |
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double d; |
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COLOR ctmp; |
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|
| 199 |
if (isformat(line)) { |
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formatval(fmt, line); |
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wrongformat = strcmp(fmt, COLRFMT); |
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} else if (original && isexpos(line)) { |
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d = 1.0/exposval(line); |
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scalecolor(exposure, d); |
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} else if (original && iscolcor(line)) { |
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colcorval(ctmp, line); |
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setcolor(exposure, colval(exposure,RED)/colval(ctmp,RED), |
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colval(exposure,GRN)/colval(ctmp,GRN), |
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colval(exposure,BLU)/colval(ctmp,BLU)); |
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} else if (header) |
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fputs(line, stdout); |
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} |
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|
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|
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pixtoval() /* convert picture to values */ |
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{ |
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register COLOR *scanln; |
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int dogamma; |
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COLOR lastc; |
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int y; |
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register int x; |
| 222 |
|
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scanln = (COLOR *)malloc(xres*sizeof(COLOR)); |
| 224 |
if (scanln == NULL) { |
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fprintf(stderr, "%s: out of memory\n", progname); |
| 226 |
quit(1); |
| 227 |
} |
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dogamma = gamma < .95 || gamma > 1.05; |
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setcolor(lastc, 0.0, 0.0, 0.0); |
| 230 |
for (y = yres-1; y >= 0; y--) { |
| 231 |
if (freadscan(scanln, xres, fin) < 0) { |
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fprintf(stderr, "%s: read error\n", progname); |
| 233 |
quit(1); |
| 234 |
} |
| 235 |
for (x = 0; x < xres; x++) { |
| 236 |
if (uniq) |
| 237 |
if ( colval(scanln[x],RED) == |
| 238 |
colval(lastc,RED) && |
| 239 |
colval(scanln[x],GRN) == |
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colval(lastc,GRN) && |
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colval(scanln[x],BLU) == |
| 242 |
colval(lastc,BLU) ) |
| 243 |
continue; |
| 244 |
else |
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copycolor(lastc, scanln[x]); |
| 246 |
if (original) |
| 247 |
multcolor(scanln[x], exposure); |
| 248 |
if (dogamma) |
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setcolor(scanln[x], |
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pow(colval(scanln[x],RED), 1.0/gamma), |
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pow(colval(scanln[x],GRN), 1.0/gamma), |
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pow(colval(scanln[x],BLU), 1.0/gamma)); |
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if (!dataonly) |
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printf("%7d %7d ", x, y); |
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if ((*putval)(scanln[x], stdout) < 0) { |
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fprintf(stderr, "%s: write error\n", progname); |
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quit(1); |
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} |
| 259 |
} |
| 260 |
} |
| 261 |
free((char *)scanln); |
| 262 |
} |
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|
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|
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valtopix() /* convert values to a pixel file */ |
| 266 |
{ |
| 267 |
int dogamma; |
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register COLOR *scanln; |
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int y; |
| 270 |
register int x; |
| 271 |
|
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scanln = (COLOR *)malloc(xres*sizeof(COLOR)); |
| 273 |
if (scanln == NULL) { |
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fprintf(stderr, "%s: out of memory\n", progname); |
| 275 |
quit(1); |
| 276 |
} |
| 277 |
dogamma = gamma < .95 || gamma > 1.05; |
| 278 |
for (y = yres-1; y >= 0; y--) { |
| 279 |
for (x = 0; x < xres; x++) { |
| 280 |
if (!dataonly) |
| 281 |
fscanf(fin, "%*d %*d"); |
| 282 |
if ((*getval)(scanln[x], fin) < 0) { |
| 283 |
fprintf(stderr, "%s: read error\n", progname); |
| 284 |
quit(1); |
| 285 |
} |
| 286 |
if (dogamma) |
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setcolor(scanln[x], |
| 288 |
pow(colval(scanln[x],RED), gamma), |
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pow(colval(scanln[x],GRN), gamma), |
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pow(colval(scanln[x],BLU), gamma)); |
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} |
| 292 |
if (fwritescan(scanln, xres, stdout) < 0) { |
| 293 |
fprintf(stderr, "%s: write error\n", progname); |
| 294 |
quit(1); |
| 295 |
} |
| 296 |
} |
| 297 |
free((char *)scanln); |
| 298 |
} |
| 299 |
|
| 300 |
|
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quit(code) |
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int code; |
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{ |
| 304 |
exit(code); |
| 305 |
} |
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|
| 307 |
|
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getcascii(col, fp) /* get an ascii color value from fp */ |
| 309 |
COLOR col; |
| 310 |
FILE *fp; |
| 311 |
{ |
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double vd[3]; |
| 313 |
|
| 314 |
if (fscanf(fp, "%lf %lf %lf", &vd[0], &vd[1], &vd[2]) != 3) |
| 315 |
return(-1); |
| 316 |
setcolor(col, vd[0], vd[1], vd[2]); |
| 317 |
return(0); |
| 318 |
} |
| 319 |
|
| 320 |
|
| 321 |
getcdouble(col, fp) /* get a double color value from fp */ |
| 322 |
COLOR col; |
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FILE *fp; |
| 324 |
{ |
| 325 |
double vd[3]; |
| 326 |
|
| 327 |
if (fread((char *)vd, sizeof(double), 3, fp) != 3) |
| 328 |
return(-1); |
| 329 |
setcolor(col, vd[0], vd[1], vd[2]); |
| 330 |
return(0); |
| 331 |
} |
| 332 |
|
| 333 |
|
| 334 |
getcfloat(col, fp) /* get a float color value from fp */ |
| 335 |
COLOR col; |
| 336 |
FILE *fp; |
| 337 |
{ |
| 338 |
float vf[3]; |
| 339 |
|
| 340 |
if (fread((char *)vf, sizeof(float), 3, fp) != 3) |
| 341 |
return(-1); |
| 342 |
setcolor(col, vf[0], vf[1], vf[2]); |
| 343 |
return(0); |
| 344 |
} |
| 345 |
|
| 346 |
|
| 347 |
getcint(col, fp) /* get an int color value from fp */ |
| 348 |
COLOR col; |
| 349 |
FILE *fp; |
| 350 |
{ |
| 351 |
int vi[3]; |
| 352 |
|
| 353 |
if (fscanf(fp, "%d %d %d", &vi[0], &vi[1], &vi[2]) != 3) |
| 354 |
return(-1); |
| 355 |
setcolor(col,(vi[0]+.5)/256.,(vi[1]+.5)/256.,(vi[2]+.5)/256.); |
| 356 |
return(0); |
| 357 |
} |
| 358 |
|
| 359 |
|
| 360 |
getcbyte(col, fp) /* get a byte color value from fp */ |
| 361 |
COLOR col; |
| 362 |
FILE *fp; |
| 363 |
{ |
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BYTE vb[3]; |
| 365 |
|
| 366 |
if (fread((char *)vb, sizeof(BYTE), 3, fp) != 3) |
| 367 |
return(-1); |
| 368 |
setcolor(col,(vb[0]+.5)/256.,(vb[1]+.5)/256.,(vb[2]+.5)/256.); |
| 369 |
return(0); |
| 370 |
} |
| 371 |
|
| 372 |
|
| 373 |
getbascii(col, fp) /* get an ascii brightness value from fp */ |
| 374 |
COLOR col; |
| 375 |
FILE *fp; |
| 376 |
{ |
| 377 |
double vd; |
| 378 |
|
| 379 |
if (fscanf(fp, "%lf", &vd) != 1) |
| 380 |
return(-1); |
| 381 |
setcolor(col, vd, vd, vd); |
| 382 |
return(0); |
| 383 |
} |
| 384 |
|
| 385 |
|
| 386 |
getbdouble(col, fp) /* get a double brightness value from fp */ |
| 387 |
COLOR col; |
| 388 |
FILE *fp; |
| 389 |
{ |
| 390 |
double vd; |
| 391 |
|
| 392 |
if (fread((char *)&vd, sizeof(double), 1, fp) != 1) |
| 393 |
return(-1); |
| 394 |
setcolor(col, vd, vd, vd); |
| 395 |
return(0); |
| 396 |
} |
| 397 |
|
| 398 |
|
| 399 |
getbfloat(col, fp) /* get a float brightness value from fp */ |
| 400 |
COLOR col; |
| 401 |
FILE *fp; |
| 402 |
{ |
| 403 |
float vf; |
| 404 |
|
| 405 |
if (fread((char *)&vf, sizeof(float), 1, fp) != 1) |
| 406 |
return(-1); |
| 407 |
setcolor(col, vf, vf, vf); |
| 408 |
return(0); |
| 409 |
} |
| 410 |
|
| 411 |
|
| 412 |
getbint(col, fp) /* get an int brightness value from fp */ |
| 413 |
COLOR col; |
| 414 |
FILE *fp; |
| 415 |
{ |
| 416 |
int vi; |
| 417 |
double d; |
| 418 |
|
| 419 |
if (fscanf(fp, "%d", &vi) != 1) |
| 420 |
return(-1); |
| 421 |
d = (vi+.5)/256.; |
| 422 |
setcolor(col, d, d, d); |
| 423 |
return(0); |
| 424 |
} |
| 425 |
|
| 426 |
|
| 427 |
getbbyte(col, fp) /* get a byte brightness value from fp */ |
| 428 |
COLOR col; |
| 429 |
FILE *fp; |
| 430 |
{ |
| 431 |
BYTE vb; |
| 432 |
double d; |
| 433 |
|
| 434 |
if (fread((char *)&vb, sizeof(BYTE), 1, fp) != 1) |
| 435 |
return(-1); |
| 436 |
d = (vb+.5)/256.; |
| 437 |
setcolor(col, d, d, d); |
| 438 |
return(0); |
| 439 |
} |
| 440 |
|
| 441 |
|
| 442 |
putcascii(col, fp) /* put an ascii color to fp */ |
| 443 |
COLOR col; |
| 444 |
FILE *fp; |
| 445 |
{ |
| 446 |
fprintf(fp, "%15.3e %15.3e %15.3e\n", |
| 447 |
colval(col,RED), |
| 448 |
colval(col,GRN), |
| 449 |
colval(col,BLU)); |
| 450 |
|
| 451 |
return(ferror(fp) ? -1 : 0); |
| 452 |
} |
| 453 |
|
| 454 |
|
| 455 |
putcfloat(col, fp) /* put a float color to fp */ |
| 456 |
COLOR col; |
| 457 |
FILE *fp; |
| 458 |
{ |
| 459 |
float vf[3]; |
| 460 |
|
| 461 |
vf[0] = colval(col,RED); |
| 462 |
vf[1] = colval(col,GRN); |
| 463 |
vf[2] = colval(col,BLU); |
| 464 |
fwrite((char *)vf, sizeof(float), 3, fp); |
| 465 |
|
| 466 |
return(ferror(fp) ? -1 : 0); |
| 467 |
} |
| 468 |
|
| 469 |
|
| 470 |
putcdouble(col, fp) /* put a double color to fp */ |
| 471 |
COLOR col; |
| 472 |
FILE *fp; |
| 473 |
{ |
| 474 |
double vd[3]; |
| 475 |
|
| 476 |
vd[0] = colval(col,RED); |
| 477 |
vd[1] = colval(col,GRN); |
| 478 |
vd[2] = colval(col,BLU); |
| 479 |
fwrite((char *)vd, sizeof(double), 3, fp); |
| 480 |
|
| 481 |
return(ferror(fp) ? -1 : 0); |
| 482 |
} |
| 483 |
|
| 484 |
|
| 485 |
putcint(col, fp) /* put an int color to fp */ |
| 486 |
COLOR col; |
| 487 |
FILE *fp; |
| 488 |
{ |
| 489 |
fprintf(fp, "%d %d %d\n", |
| 490 |
(int)(colval(col,RED)*256.), |
| 491 |
(int)(colval(col,GRN)*256.), |
| 492 |
(int)(colval(col,BLU)*256.)); |
| 493 |
|
| 494 |
return(ferror(fp) ? -1 : 0); |
| 495 |
} |
| 496 |
|
| 497 |
|
| 498 |
putcbyte(col, fp) /* put a byte color to fp */ |
| 499 |
COLOR col; |
| 500 |
FILE *fp; |
| 501 |
{ |
| 502 |
register int i; |
| 503 |
BYTE vb[3]; |
| 504 |
|
| 505 |
i = colval(col,RED)*256.; |
| 506 |
vb[0] = min(i,255); |
| 507 |
i = colval(col,GRN)*256.; |
| 508 |
vb[1] = min(i,255); |
| 509 |
i = colval(col,BLU)*256.; |
| 510 |
vb[2] = min(i,255); |
| 511 |
fwrite((char *)vb, sizeof(BYTE), 3, fp); |
| 512 |
|
| 513 |
return(ferror(fp) ? -1 : 0); |
| 514 |
} |
| 515 |
|
| 516 |
|
| 517 |
putbascii(col, fp) /* put an ascii brightness to fp */ |
| 518 |
COLOR col; |
| 519 |
FILE *fp; |
| 520 |
{ |
| 521 |
fprintf(fp, "%15.3e\n", bright(col)); |
| 522 |
|
| 523 |
return(ferror(fp) ? -1 : 0); |
| 524 |
} |
| 525 |
|
| 526 |
|
| 527 |
putbfloat(col, fp) /* put a float brightness to fp */ |
| 528 |
COLOR col; |
| 529 |
FILE *fp; |
| 530 |
{ |
| 531 |
float vf; |
| 532 |
|
| 533 |
vf = bright(col); |
| 534 |
fwrite((char *)&vf, sizeof(float), 1, fp); |
| 535 |
|
| 536 |
return(ferror(fp) ? -1 : 0); |
| 537 |
} |
| 538 |
|
| 539 |
|
| 540 |
putbdouble(col, fp) /* put a double brightness to fp */ |
| 541 |
COLOR col; |
| 542 |
FILE *fp; |
| 543 |
{ |
| 544 |
double vd; |
| 545 |
|
| 546 |
vd = bright(col); |
| 547 |
fwrite((char *)&vd, sizeof(double), 1, fp); |
| 548 |
|
| 549 |
return(ferror(fp) ? -1 : 0); |
| 550 |
} |
| 551 |
|
| 552 |
|
| 553 |
putbint(col, fp) /* put an int brightness to fp */ |
| 554 |
COLOR col; |
| 555 |
FILE *fp; |
| 556 |
{ |
| 557 |
fprintf(fp, "%d\n", (int)(bright(col)*256.)); |
| 558 |
|
| 559 |
return(ferror(fp) ? -1 : 0); |
| 560 |
} |
| 561 |
|
| 562 |
|
| 563 |
putbbyte(col, fp) /* put a byte brightness to fp */ |
| 564 |
COLOR col; |
| 565 |
FILE *fp; |
| 566 |
{ |
| 567 |
register int i; |
| 568 |
BYTE vb; |
| 569 |
|
| 570 |
i = bright(col)*256.; |
| 571 |
vb = min(i,255); |
| 572 |
fwrite((char *)&vb, sizeof(BYTE), 1, fp); |
| 573 |
|
| 574 |
return(ferror(fp) ? -1 : 0); |
| 575 |
} |
| 576 |
|
| 577 |
|
| 578 |
set_io() /* set put and get functions */ |
| 579 |
{ |
| 580 |
switch (format) { |
| 581 |
case 'a': /* ascii */ |
| 582 |
if (brightonly) { |
| 583 |
getval = getbascii; |
| 584 |
putval = putbascii; |
| 585 |
} else { |
| 586 |
getval = getcascii; |
| 587 |
putval = putcascii; |
| 588 |
} |
| 589 |
return; |
| 590 |
case 'f': /* binary float */ |
| 591 |
if (brightonly) { |
| 592 |
getval = getbfloat; |
| 593 |
putval = putbfloat; |
| 594 |
} else { |
| 595 |
getval = getcfloat; |
| 596 |
putval = putcfloat; |
| 597 |
} |
| 598 |
return; |
| 599 |
case 'd': /* binary double */ |
| 600 |
if (brightonly) { |
| 601 |
getval = getbdouble; |
| 602 |
putval = putbdouble; |
| 603 |
} else { |
| 604 |
getval = getcdouble; |
| 605 |
putval = putcdouble; |
| 606 |
} |
| 607 |
return; |
| 608 |
case 'i': /* integer */ |
| 609 |
if (brightonly) { |
| 610 |
getval = getbint; |
| 611 |
putval = putbint; |
| 612 |
} else { |
| 613 |
getval = getcint; |
| 614 |
putval = putcint; |
| 615 |
} |
| 616 |
return; |
| 617 |
case 'b': /* byte */ |
| 618 |
if (brightonly) { |
| 619 |
getval = getbbyte; |
| 620 |
putval = putbbyte; |
| 621 |
} else { |
| 622 |
getval = getcbyte; |
| 623 |
putval = putcbyte; |
| 624 |
} |
| 625 |
return; |
| 626 |
} |
| 627 |
} |
