| 1 |
/* Copyright (c) 1992 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 "standard.h" |
| 14 |
|
| 15 |
#include "color.h" |
| 16 |
|
| 17 |
#include "resolu.h" |
| 18 |
|
| 19 |
#define min(a,b) ((a)<(b)?(a):(b)) |
| 20 |
|
| 21 |
RESOLU picres; /* resolution of picture */ |
| 22 |
|
| 23 |
int uniq = 0; /* print only unique values? */ |
| 24 |
|
| 25 |
int original = 0; /* convert back to original values? */ |
| 26 |
|
| 27 |
int dataonly = 0; /* data only format? */ |
| 28 |
|
| 29 |
int brightonly = 0; /* only brightness values? */ |
| 30 |
|
| 31 |
int reverse = 0; /* reverse conversion? */ |
| 32 |
|
| 33 |
int format = 'a'; /* input/output format */ |
| 34 |
char *fmtid = "ascii"; /* format identifier for header */ |
| 35 |
|
| 36 |
int header = 1; /* do header? */ |
| 37 |
|
| 38 |
int resolution = 1; /* put/get resolution string? */ |
| 39 |
|
| 40 |
int wrongformat = 0; /* wrong input format? */ |
| 41 |
|
| 42 |
double gamcor = 1.0; /* gamma correction */ |
| 43 |
|
| 44 |
int ord[3] = {RED, GRN, BLU}; /* RGB ordering */ |
| 45 |
int rord[4]; /* reverse ordering */ |
| 46 |
|
| 47 |
COLOR exposure = WHTCOLOR; |
| 48 |
|
| 49 |
char *progname; |
| 50 |
|
| 51 |
FILE *fin; |
| 52 |
|
| 53 |
int (*getval)(), (*putval)(); |
| 54 |
|
| 55 |
|
| 56 |
main(argc, argv) |
| 57 |
int argc; |
| 58 |
char **argv; |
| 59 |
{ |
| 60 |
extern int checkhead(); |
| 61 |
int i; |
| 62 |
|
| 63 |
progname = argv[0]; |
| 64 |
|
| 65 |
for (i = 1; i < argc; i++) |
| 66 |
if (argv[i][0] == '-' || argv[i][0] == '+') |
| 67 |
switch (argv[i][1]) { |
| 68 |
case 'h': /* header */ |
| 69 |
header = argv[i][0] == '+'; |
| 70 |
break; |
| 71 |
case 'H': /* resolution string */ |
| 72 |
resolution = argv[i][0] == '+'; |
| 73 |
break; |
| 74 |
case 'u': /* unique values */ |
| 75 |
uniq = argv[i][0] == '-'; |
| 76 |
break; |
| 77 |
case 'o': /* original values */ |
| 78 |
original = argv[i][0] == '-'; |
| 79 |
break; |
| 80 |
case 'g': /* gamma correction */ |
| 81 |
gamcor = atof(argv[++i]); |
| 82 |
if (argv[i][0] == '+') |
| 83 |
gamcor = 1.0/gamcor; |
| 84 |
break; |
| 85 |
case 'R': /* reverse byte sequence */ |
| 86 |
if (argv[i][0] == '-') { |
| 87 |
ord[0]=BLU; ord[1]=GRN; ord[2]=RED; |
| 88 |
} else { |
| 89 |
ord[0]=RED; ord[1]=GRN; ord[2]=BLU; |
| 90 |
} |
| 91 |
break; |
| 92 |
case 'r': /* reverse conversion */ |
| 93 |
reverse = argv[i][0] == '-'; |
| 94 |
break; |
| 95 |
case 'b': /* brightness values */ |
| 96 |
brightonly = argv[i][0] == '-'; |
| 97 |
break; |
| 98 |
case 'd': /* data only (no indices) */ |
| 99 |
dataonly = argv[i][0] == '-'; |
| 100 |
switch (argv[i][2]) { |
| 101 |
case '\0': |
| 102 |
case 'a': /* ascii */ |
| 103 |
format = 'a'; |
| 104 |
fmtid = "ascii"; |
| 105 |
break; |
| 106 |
case 'i': /* integer */ |
| 107 |
format = 'i'; |
| 108 |
fmtid = "ascii"; |
| 109 |
break; |
| 110 |
case 'b': /* byte */ |
| 111 |
dataonly = 1; |
| 112 |
format = 'b'; |
| 113 |
fmtid = "byte"; |
| 114 |
break; |
| 115 |
case 'f': /* float */ |
| 116 |
dataonly = 1; |
| 117 |
format = 'f'; |
| 118 |
fmtid = "float"; |
| 119 |
break; |
| 120 |
case 'd': /* double */ |
| 121 |
dataonly = 1; |
| 122 |
format = 'd'; |
| 123 |
fmtid = "double"; |
| 124 |
break; |
| 125 |
default: |
| 126 |
goto unkopt; |
| 127 |
} |
| 128 |
break; |
| 129 |
case 'x': /* x resolution */ |
| 130 |
resolution = 0; |
| 131 |
if (argv[i][0] == '-') |
| 132 |
picres.or |= XDECR; |
| 133 |
picres.xr = atoi(argv[++i]); |
| 134 |
break; |
| 135 |
case 'y': /* y resolution */ |
| 136 |
resolution = 0; |
| 137 |
if (argv[i][0] == '-') |
| 138 |
picres.or |= YDECR; |
| 139 |
if (picres.xr == 0) |
| 140 |
picres.or |= YMAJOR; |
| 141 |
picres.yr = atoi(argv[++i]); |
| 142 |
break; |
| 143 |
default: |
| 144 |
unkopt: |
| 145 |
fprintf(stderr, "%s: unknown option: %s\n", |
| 146 |
progname, argv[i]); |
| 147 |
quit(1); |
| 148 |
break; |
| 149 |
} |
| 150 |
else |
| 151 |
break; |
| 152 |
/* recognize special formats */ |
| 153 |
if (dataonly && format == 'b') |
| 154 |
if (brightonly) |
| 155 |
fmtid = "8-bit_grey"; |
| 156 |
else |
| 157 |
fmtid = "24-bit_rgb"; |
| 158 |
/* assign reverse ordering */ |
| 159 |
rord[ord[0]] = 0; |
| 160 |
rord[ord[1]] = 1; |
| 161 |
rord[ord[2]] = 2; |
| 162 |
/* get input */ |
| 163 |
if (i == argc) { |
| 164 |
fin = stdin; |
| 165 |
} else if (i == argc-1) { |
| 166 |
if ((fin = fopen(argv[i], "r")) == NULL) { |
| 167 |
fprintf(stderr, "%s: can't open file \"%s\"\n", |
| 168 |
progname, argv[i]); |
| 169 |
quit(1); |
| 170 |
} |
| 171 |
} else { |
| 172 |
fprintf(stderr, "%s: bad # file arguments\n", progname); |
| 173 |
quit(1); |
| 174 |
} |
| 175 |
|
| 176 |
set_io(); |
| 177 |
|
| 178 |
if (reverse) { |
| 179 |
#ifdef MSDOS |
| 180 |
setmode(fileno(stdout), O_BINARY); |
| 181 |
if (format != 'a' && format != 'i') |
| 182 |
setmode(fileno(fin), O_BINARY); |
| 183 |
#endif |
| 184 |
/* get header */ |
| 185 |
if (header && checkheader(fin, fmtid, stdout) < 0) { |
| 186 |
fprintf(stderr, "%s: wrong input format\n", progname); |
| 187 |
quit(1); |
| 188 |
} |
| 189 |
/* get resolution */ |
| 190 |
if ((resolution && !fgetsresolu(&picres, fin)) || |
| 191 |
picres.xr <= 0 || picres.yr <= 0) { |
| 192 |
fprintf(stderr, "%s: missing resolution\n", progname); |
| 193 |
quit(1); |
| 194 |
} |
| 195 |
/* add to header */ |
| 196 |
printargs(i, argv, stdout); |
| 197 |
fputformat(COLRFMT, stdout); |
| 198 |
putchar('\n'); |
| 199 |
fputsresolu(&picres, stdout); /* always put resolution */ |
| 200 |
valtopix(); |
| 201 |
} else { |
| 202 |
#ifdef MSDOS |
| 203 |
setmode(fileno(fin), O_BINARY); |
| 204 |
if (format != 'a' && format != 'i') |
| 205 |
setmode(fileno(stdout), O_BINARY); |
| 206 |
#endif |
| 207 |
/* get header */ |
| 208 |
getheader(fin, checkhead, NULL); |
| 209 |
if (wrongformat) { |
| 210 |
fprintf(stderr, "%s: input not a Radiance picture\n", |
| 211 |
progname); |
| 212 |
quit(1); |
| 213 |
} |
| 214 |
if (!fgetsresolu(&picres, fin)) { |
| 215 |
fprintf(stderr, "%s: missing resolution\n", progname); |
| 216 |
quit(1); |
| 217 |
} |
| 218 |
if (header) { |
| 219 |
printargs(i, argv, stdout); |
| 220 |
fputformat(fmtid, stdout); |
| 221 |
putchar('\n'); |
| 222 |
} |
| 223 |
if (resolution) /* put resolution */ |
| 224 |
fputsresolu(&picres, stdout); |
| 225 |
pixtoval(); |
| 226 |
} |
| 227 |
|
| 228 |
quit(0); |
| 229 |
} |
| 230 |
|
| 231 |
|
| 232 |
checkhead(line) /* deal with line from header */ |
| 233 |
char *line; |
| 234 |
{ |
| 235 |
char fmt[32]; |
| 236 |
double d; |
| 237 |
COLOR ctmp; |
| 238 |
|
| 239 |
if (isformat(line)) { |
| 240 |
formatval(fmt, line); |
| 241 |
wrongformat = strcmp(fmt, COLRFMT); |
| 242 |
} else if (original && isexpos(line)) { |
| 243 |
d = 1.0/exposval(line); |
| 244 |
scalecolor(exposure, d); |
| 245 |
} else if (original && iscolcor(line)) { |
| 246 |
colcorval(ctmp, line); |
| 247 |
setcolor(exposure, colval(exposure,RED)/colval(ctmp,RED), |
| 248 |
colval(exposure,GRN)/colval(ctmp,GRN), |
| 249 |
colval(exposure,BLU)/colval(ctmp,BLU)); |
| 250 |
} else if (header) |
| 251 |
fputs(line, stdout); |
| 252 |
} |
| 253 |
|
| 254 |
|
| 255 |
pixtoval() /* convert picture to values */ |
| 256 |
{ |
| 257 |
register COLOR *scanln; |
| 258 |
int dogamma; |
| 259 |
COLOR lastc; |
| 260 |
FLOAT hv[2]; |
| 261 |
int y; |
| 262 |
register int x; |
| 263 |
|
| 264 |
scanln = (COLOR *)malloc(scanlen(&picres)*sizeof(COLOR)); |
| 265 |
if (scanln == NULL) { |
| 266 |
fprintf(stderr, "%s: out of memory\n", progname); |
| 267 |
quit(1); |
| 268 |
} |
| 269 |
dogamma = gamcor < .95 || gamcor > 1.05; |
| 270 |
setcolor(lastc, 0.0, 0.0, 0.0); |
| 271 |
for (y = 0; y < numscans(&picres); y++) { |
| 272 |
if (freadscan(scanln, scanlen(&picres), fin) < 0) { |
| 273 |
fprintf(stderr, "%s: read error\n", progname); |
| 274 |
quit(1); |
| 275 |
} |
| 276 |
for (x = 0; x < scanlen(&picres); x++) { |
| 277 |
if (uniq) |
| 278 |
if ( colval(scanln[x],RED) == |
| 279 |
colval(lastc,RED) && |
| 280 |
colval(scanln[x],GRN) == |
| 281 |
colval(lastc,GRN) && |
| 282 |
colval(scanln[x],BLU) == |
| 283 |
colval(lastc,BLU) ) |
| 284 |
continue; |
| 285 |
else |
| 286 |
copycolor(lastc, scanln[x]); |
| 287 |
if (original) |
| 288 |
multcolor(scanln[x], exposure); |
| 289 |
if (dogamma) |
| 290 |
setcolor(scanln[x], |
| 291 |
pow(colval(scanln[x],RED), 1.0/gamcor), |
| 292 |
pow(colval(scanln[x],GRN), 1.0/gamcor), |
| 293 |
pow(colval(scanln[x],BLU), 1.0/gamcor)); |
| 294 |
if (!dataonly) { |
| 295 |
pix2loc(hv, &picres, x, y); |
| 296 |
printf("%7d %7d ", (int)(hv[0]*picres.xr), |
| 297 |
(int)(hv[1]*picres.yr)); |
| 298 |
} |
| 299 |
if ((*putval)(scanln[x], stdout) < 0) { |
| 300 |
fprintf(stderr, "%s: write error\n", progname); |
| 301 |
quit(1); |
| 302 |
} |
| 303 |
} |
| 304 |
} |
| 305 |
free((char *)scanln); |
| 306 |
} |
| 307 |
|
| 308 |
|
| 309 |
valtopix() /* convert values to a pixel file */ |
| 310 |
{ |
| 311 |
int dogamma; |
| 312 |
register COLOR *scanln; |
| 313 |
int y; |
| 314 |
register int x; |
| 315 |
|
| 316 |
scanln = (COLOR *)malloc(scanlen(&picres)*sizeof(COLOR)); |
| 317 |
if (scanln == NULL) { |
| 318 |
fprintf(stderr, "%s: out of memory\n", progname); |
| 319 |
quit(1); |
| 320 |
} |
| 321 |
dogamma = gamcor < .95 || gamcor > 1.05; |
| 322 |
for (y = 0; y < numscans(&picres); y++) { |
| 323 |
for (x = 0; x < scanlen(&picres); x++) { |
| 324 |
if (!dataonly) |
| 325 |
fscanf(fin, "%*d %*d"); |
| 326 |
if ((*getval)(scanln[x], fin) < 0) { |
| 327 |
fprintf(stderr, "%s: read error\n", progname); |
| 328 |
quit(1); |
| 329 |
} |
| 330 |
if (dogamma) |
| 331 |
setcolor(scanln[x], |
| 332 |
pow(colval(scanln[x],RED), gamcor), |
| 333 |
pow(colval(scanln[x],GRN), gamcor), |
| 334 |
pow(colval(scanln[x],BLU), gamcor)); |
| 335 |
} |
| 336 |
if (fwritescan(scanln, scanlen(&picres), stdout) < 0) { |
| 337 |
fprintf(stderr, "%s: write error\n", progname); |
| 338 |
quit(1); |
| 339 |
} |
| 340 |
} |
| 341 |
free((char *)scanln); |
| 342 |
} |
| 343 |
|
| 344 |
|
| 345 |
quit(code) |
| 346 |
int code; |
| 347 |
{ |
| 348 |
exit(code); |
| 349 |
} |
| 350 |
|
| 351 |
|
| 352 |
getcascii(col, fp) /* get an ascii color value from fp */ |
| 353 |
COLOR col; |
| 354 |
FILE *fp; |
| 355 |
{ |
| 356 |
double vd[3]; |
| 357 |
|
| 358 |
if (fscanf(fp, "%lf %lf %lf", &vd[0], &vd[1], &vd[2]) != 3) |
| 359 |
return(-1); |
| 360 |
setcolor(col, vd[rord[RED]], vd[rord[GRN]], vd[rord[BLU]]); |
| 361 |
return(0); |
| 362 |
} |
| 363 |
|
| 364 |
|
| 365 |
getcdouble(col, fp) /* get a double color value from fp */ |
| 366 |
COLOR col; |
| 367 |
FILE *fp; |
| 368 |
{ |
| 369 |
double vd[3]; |
| 370 |
|
| 371 |
if (fread((char *)vd, sizeof(double), 3, fp) != 3) |
| 372 |
return(-1); |
| 373 |
setcolor(col, vd[rord[RED]], vd[rord[GRN]], vd[rord[BLU]]); |
| 374 |
return(0); |
| 375 |
} |
| 376 |
|
| 377 |
|
| 378 |
getcfloat(col, fp) /* get a float color value from fp */ |
| 379 |
COLOR col; |
| 380 |
FILE *fp; |
| 381 |
{ |
| 382 |
float vf[3]; |
| 383 |
|
| 384 |
if (fread((char *)vf, sizeof(float), 3, fp) != 3) |
| 385 |
return(-1); |
| 386 |
setcolor(col, vf[rord[RED]], vf[rord[GRN]], vf[rord[BLU]]); |
| 387 |
return(0); |
| 388 |
} |
| 389 |
|
| 390 |
|
| 391 |
getcint(col, fp) /* get an int color value from fp */ |
| 392 |
COLOR col; |
| 393 |
FILE *fp; |
| 394 |
{ |
| 395 |
int vi[3]; |
| 396 |
|
| 397 |
if (fscanf(fp, "%d %d %d", &vi[0], &vi[1], &vi[2]) != 3) |
| 398 |
return(-1); |
| 399 |
setcolor(col, (vi[rord[RED]]+.5)/256., |
| 400 |
(vi[rord[GRN]]+.5)/256., (vi[rord[BLU]]+.5)/256.); |
| 401 |
return(0); |
| 402 |
} |
| 403 |
|
| 404 |
|
| 405 |
getcbyte(col, fp) /* get a byte color value from fp */ |
| 406 |
COLOR col; |
| 407 |
FILE *fp; |
| 408 |
{ |
| 409 |
BYTE vb[3]; |
| 410 |
|
| 411 |
if (fread((char *)vb, sizeof(BYTE), 3, fp) != 3) |
| 412 |
return(-1); |
| 413 |
setcolor(col, (vb[rord[RED]]+.5)/256., |
| 414 |
(vb[rord[GRN]]+.5)/256., (vb[rord[BLU]]+.5)/256.); |
| 415 |
return(0); |
| 416 |
} |
| 417 |
|
| 418 |
|
| 419 |
getbascii(col, fp) /* get an ascii brightness value from fp */ |
| 420 |
COLOR col; |
| 421 |
FILE *fp; |
| 422 |
{ |
| 423 |
double vd; |
| 424 |
|
| 425 |
if (fscanf(fp, "%lf", &vd) != 1) |
| 426 |
return(-1); |
| 427 |
setcolor(col, vd, vd, vd); |
| 428 |
return(0); |
| 429 |
} |
| 430 |
|
| 431 |
|
| 432 |
getbdouble(col, fp) /* get a double brightness value from fp */ |
| 433 |
COLOR col; |
| 434 |
FILE *fp; |
| 435 |
{ |
| 436 |
double vd; |
| 437 |
|
| 438 |
if (fread((char *)&vd, sizeof(double), 1, fp) != 1) |
| 439 |
return(-1); |
| 440 |
setcolor(col, vd, vd, vd); |
| 441 |
return(0); |
| 442 |
} |
| 443 |
|
| 444 |
|
| 445 |
getbfloat(col, fp) /* get a float brightness value from fp */ |
| 446 |
COLOR col; |
| 447 |
FILE *fp; |
| 448 |
{ |
| 449 |
float vf; |
| 450 |
|
| 451 |
if (fread((char *)&vf, sizeof(float), 1, fp) != 1) |
| 452 |
return(-1); |
| 453 |
setcolor(col, vf, vf, vf); |
| 454 |
return(0); |
| 455 |
} |
| 456 |
|
| 457 |
|
| 458 |
getbint(col, fp) /* get an int brightness value from fp */ |
| 459 |
COLOR col; |
| 460 |
FILE *fp; |
| 461 |
{ |
| 462 |
int vi; |
| 463 |
double d; |
| 464 |
|
| 465 |
if (fscanf(fp, "%d", &vi) != 1) |
| 466 |
return(-1); |
| 467 |
d = (vi+.5)/256.; |
| 468 |
setcolor(col, d, d, d); |
| 469 |
return(0); |
| 470 |
} |
| 471 |
|
| 472 |
|
| 473 |
getbbyte(col, fp) /* get a byte brightness value from fp */ |
| 474 |
COLOR col; |
| 475 |
FILE *fp; |
| 476 |
{ |
| 477 |
BYTE vb; |
| 478 |
double d; |
| 479 |
|
| 480 |
if (fread((char *)&vb, sizeof(BYTE), 1, fp) != 1) |
| 481 |
return(-1); |
| 482 |
d = (vb+.5)/256.; |
| 483 |
setcolor(col, d, d, d); |
| 484 |
return(0); |
| 485 |
} |
| 486 |
|
| 487 |
|
| 488 |
putcascii(col, fp) /* put an ascii color to fp */ |
| 489 |
COLOR col; |
| 490 |
FILE *fp; |
| 491 |
{ |
| 492 |
fprintf(fp, "%15.3e %15.3e %15.3e\n", |
| 493 |
colval(col,ord[0]), |
| 494 |
colval(col,ord[1]), |
| 495 |
colval(col,ord[2])); |
| 496 |
|
| 497 |
return(ferror(fp) ? -1 : 0); |
| 498 |
} |
| 499 |
|
| 500 |
|
| 501 |
putcfloat(col, fp) /* put a float color to fp */ |
| 502 |
COLOR col; |
| 503 |
FILE *fp; |
| 504 |
{ |
| 505 |
float vf[3]; |
| 506 |
|
| 507 |
vf[0] = colval(col,ord[0]); |
| 508 |
vf[1] = colval(col,ord[1]); |
| 509 |
vf[2] = colval(col,ord[2]); |
| 510 |
fwrite((char *)vf, sizeof(float), 3, fp); |
| 511 |
|
| 512 |
return(ferror(fp) ? -1 : 0); |
| 513 |
} |
| 514 |
|
| 515 |
|
| 516 |
putcdouble(col, fp) /* put a double color to fp */ |
| 517 |
COLOR col; |
| 518 |
FILE *fp; |
| 519 |
{ |
| 520 |
double vd[3]; |
| 521 |
|
| 522 |
vd[0] = colval(col,ord[0]); |
| 523 |
vd[1] = colval(col,ord[1]); |
| 524 |
vd[2] = colval(col,ord[2]); |
| 525 |
fwrite((char *)vd, sizeof(double), 3, fp); |
| 526 |
|
| 527 |
return(ferror(fp) ? -1 : 0); |
| 528 |
} |
| 529 |
|
| 530 |
|
| 531 |
putcint(col, fp) /* put an int color to fp */ |
| 532 |
COLOR col; |
| 533 |
FILE *fp; |
| 534 |
{ |
| 535 |
fprintf(fp, "%d %d %d\n", |
| 536 |
(int)(colval(col,ord[0])*256.), |
| 537 |
(int)(colval(col,ord[1])*256.), |
| 538 |
(int)(colval(col,ord[2])*256.)); |
| 539 |
|
| 540 |
return(ferror(fp) ? -1 : 0); |
| 541 |
} |
| 542 |
|
| 543 |
|
| 544 |
putcbyte(col, fp) /* put a byte color to fp */ |
| 545 |
COLOR col; |
| 546 |
FILE *fp; |
| 547 |
{ |
| 548 |
register int i; |
| 549 |
BYTE vb[3]; |
| 550 |
|
| 551 |
i = colval(col,ord[0])*256.; |
| 552 |
vb[0] = min(i,255); |
| 553 |
i = colval(col,ord[1])*256.; |
| 554 |
vb[1] = min(i,255); |
| 555 |
i = colval(col,ord[2])*256.; |
| 556 |
vb[2] = min(i,255); |
| 557 |
fwrite((char *)vb, sizeof(BYTE), 3, fp); |
| 558 |
|
| 559 |
return(ferror(fp) ? -1 : 0); |
| 560 |
} |
| 561 |
|
| 562 |
|
| 563 |
putbascii(col, fp) /* put an ascii brightness to fp */ |
| 564 |
COLOR col; |
| 565 |
FILE *fp; |
| 566 |
{ |
| 567 |
fprintf(fp, "%15.3e\n", bright(col)); |
| 568 |
|
| 569 |
return(ferror(fp) ? -1 : 0); |
| 570 |
} |
| 571 |
|
| 572 |
|
| 573 |
putbfloat(col, fp) /* put a float brightness to fp */ |
| 574 |
COLOR col; |
| 575 |
FILE *fp; |
| 576 |
{ |
| 577 |
float vf; |
| 578 |
|
| 579 |
vf = bright(col); |
| 580 |
fwrite((char *)&vf, sizeof(float), 1, fp); |
| 581 |
|
| 582 |
return(ferror(fp) ? -1 : 0); |
| 583 |
} |
| 584 |
|
| 585 |
|
| 586 |
putbdouble(col, fp) /* put a double brightness to fp */ |
| 587 |
COLOR col; |
| 588 |
FILE *fp; |
| 589 |
{ |
| 590 |
double vd; |
| 591 |
|
| 592 |
vd = bright(col); |
| 593 |
fwrite((char *)&vd, sizeof(double), 1, fp); |
| 594 |
|
| 595 |
return(ferror(fp) ? -1 : 0); |
| 596 |
} |
| 597 |
|
| 598 |
|
| 599 |
putbint(col, fp) /* put an int brightness to fp */ |
| 600 |
COLOR col; |
| 601 |
FILE *fp; |
| 602 |
{ |
| 603 |
fprintf(fp, "%d\n", (int)(bright(col)*256.)); |
| 604 |
|
| 605 |
return(ferror(fp) ? -1 : 0); |
| 606 |
} |
| 607 |
|
| 608 |
|
| 609 |
putbbyte(col, fp) /* put a byte brightness to fp */ |
| 610 |
COLOR col; |
| 611 |
FILE *fp; |
| 612 |
{ |
| 613 |
register int i; |
| 614 |
BYTE vb; |
| 615 |
|
| 616 |
i = bright(col)*256.; |
| 617 |
vb = min(i,255); |
| 618 |
fwrite((char *)&vb, sizeof(BYTE), 1, fp); |
| 619 |
|
| 620 |
return(ferror(fp) ? -1 : 0); |
| 621 |
} |
| 622 |
|
| 623 |
|
| 624 |
set_io() /* set put and get functions */ |
| 625 |
{ |
| 626 |
switch (format) { |
| 627 |
case 'a': /* ascii */ |
| 628 |
if (brightonly) { |
| 629 |
getval = getbascii; |
| 630 |
putval = putbascii; |
| 631 |
} else { |
| 632 |
getval = getcascii; |
| 633 |
putval = putcascii; |
| 634 |
} |
| 635 |
return; |
| 636 |
case 'f': /* binary float */ |
| 637 |
if (brightonly) { |
| 638 |
getval = getbfloat; |
| 639 |
putval = putbfloat; |
| 640 |
} else { |
| 641 |
getval = getcfloat; |
| 642 |
putval = putcfloat; |
| 643 |
} |
| 644 |
return; |
| 645 |
case 'd': /* binary double */ |
| 646 |
if (brightonly) { |
| 647 |
getval = getbdouble; |
| 648 |
putval = putbdouble; |
| 649 |
} else { |
| 650 |
getval = getcdouble; |
| 651 |
putval = putcdouble; |
| 652 |
} |
| 653 |
return; |
| 654 |
case 'i': /* integer */ |
| 655 |
if (brightonly) { |
| 656 |
getval = getbint; |
| 657 |
putval = putbint; |
| 658 |
} else { |
| 659 |
getval = getcint; |
| 660 |
putval = putcint; |
| 661 |
} |
| 662 |
return; |
| 663 |
case 'b': /* byte */ |
| 664 |
if (brightonly) { |
| 665 |
getval = getbbyte; |
| 666 |
putval = putbbyte; |
| 667 |
} else { |
| 668 |
getval = getcbyte; |
| 669 |
putval = putcbyte; |
| 670 |
} |
| 671 |
return; |
| 672 |
} |
| 673 |
} |
