| 5 |
|
* program to convert between RADIANCE and Windows BMP file |
| 6 |
|
*/ |
| 7 |
|
|
| 8 |
– |
#include <stdio.h> |
| 8 |
|
#include <math.h> |
| 10 |
– |
#include <string.h> |
| 9 |
|
|
| 10 |
+ |
#include "rtio.h" |
| 11 |
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#include "platform.h" |
| 12 |
|
#include "color.h" |
| 13 |
|
#include "tonemap.h" |
| 18 |
|
|
| 19 |
|
double gamcor = 2.2; /* gamma correction value */ |
| 20 |
|
|
| 21 |
< |
char *progname; |
| 21 |
> |
char *info = ""; /* information header string */ |
| 22 |
> |
int infolen = 0; /* information header length */ |
| 23 |
|
|
| 24 |
< |
static void quiterr(const char *err); |
| 25 |
< |
static void tmap2bmp(char *fnin, char *fnout, char *expec, |
| 24 |
> |
extern void quiterr(const char *err); |
| 25 |
> |
extern void addBMPcspace(RGBPRIMP pp, double gamma); |
| 26 |
> |
extern void tmap2bmp(char *fnin, char *fnout, char *expec, |
| 27 |
|
RGBPRIMP monpri, double gamval); |
| 28 |
< |
static void rad2bmp(FILE *rfp, BMPWriter *bwr, int inv, RGBPRIMP monpri); |
| 29 |
< |
static void bmp2rad(BMPReader *brd, FILE *rfp, int inv); |
| 28 |
> |
extern void rad2bmp(FILE *rfp, BMPWriter *bwr, int inv, RGBPRIMP monpri); |
| 29 |
> |
extern void bmp2rad(BMPReader *brd, FILE *rfp, int inv); |
| 30 |
> |
extern void info2rad(char *infs, int len, FILE *fout); |
| 31 |
> |
extern char *growInfo(int n); |
| 32 |
> |
extern gethfunc headline; |
| 33 |
|
|
| 34 |
< |
static RGBPRIMP rgbinp = stdprims; /* RGB input primitives */ |
| 35 |
< |
static RGBPRIMS myinprims; /* custom primitives holder */ |
| 34 |
> |
#define add2info(s) {int _n=strlen(s); memcpy(growInfo(_n), s, _n+1);} |
| 35 |
> |
#define clearInfo() growInfo(-infolen) |
| 36 |
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|
| 37 |
< |
static gethfunc headline; |
| 37 |
> |
RGBPRIMP rgbinp = stdprims; /* RGB input primitives */ |
| 38 |
> |
RGBPRIMS myinprims; /* custom primitives holder */ |
| 39 |
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|
| 40 |
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|
| 41 |
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int |
| 49 |
|
RESOLU rs; |
| 50 |
|
int i; |
| 51 |
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|
| 52 |
< |
progname = argv[0]; |
| 52 |
> |
fixargv0(argv[0]); /* assigns progname */ |
| 53 |
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|
| 54 |
|
for (i = 1; i < argc; i++) |
| 55 |
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if (argv[i][0] == '-' && argv[i][1]) |
| 101 |
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|
| 102 |
|
if (i == argc-2 && strcmp(argv[i+1], "-")) |
| 103 |
|
outfile = argv[i+1]; |
| 104 |
< |
/* check for tone-mapping */ |
| 105 |
< |
if (expec != NULL) { |
| 104 |
> |
|
| 105 |
> |
if (expec != NULL) { /* check for tone-mapping */ |
| 106 |
|
if (reverse) |
| 107 |
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goto userr; |
| 108 |
|
tmap2bmp(inpfile, outfile, expec, rgbp, gamcor); |
| 109 |
|
return(0); |
| 110 |
|
} |
| 106 |
– |
|
| 107 |
– |
setcolrgam(gamcor); /* set up conversion */ |
| 108 |
– |
|
| 111 |
|
if (reverse) { |
| 112 |
|
BMPReader *rdr; |
| 113 |
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/* open BMP file or stream */ |
| 129 |
|
} |
| 130 |
|
/* put Radiance header */ |
| 131 |
|
newheader("RADIANCE", stdout); |
| 132 |
+ |
info2rad(BMPinfo(rdr->hdr), rdr->hdr->infoSiz, stdout); |
| 133 |
|
printargs(i, argv, stdout); |
| 134 |
|
fputformat(COLRFMT, stdout); |
| 135 |
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putchar('\n'); |
| 140 |
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if (rdr->hdr->yIsDown || inpfile != NULL) |
| 141 |
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rs.rt |= YDECR; |
| 142 |
|
fputsresolu(&rs, stdout); |
| 143 |
+ |
/* set up conversion */ |
| 144 |
+ |
setcolrgam(gamcor); |
| 145 |
|
/* convert file */ |
| 146 |
< |
bmp2rad(rdr, stdout, !rdr->hdr->yIsDown && inpfile!=NULL); |
| 146 |
> |
bmp2rad(rdr, stdout, !rdr->hdr->yIsDown & (inpfile!=NULL)); |
| 147 |
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/* flush output */ |
| 148 |
|
BMPcloseInput(rdr); |
| 149 |
|
if (fflush(stdout) < 0) |
| 157 |
|
inpfile); |
| 158 |
|
exit(1); |
| 159 |
|
} |
| 160 |
< |
/* get header info. */ |
| 160 |
> |
/* get/save header info. */ |
| 161 |
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if (getheader(stdin, headline, NULL) < 0 || |
| 162 |
< |
!fgetsresolu(&rs, stdin)) |
| 162 |
> |
!fgetsresolu(&rs, stdin)) |
| 163 |
|
quiterr("bad Radiance picture format"); |
| 164 |
< |
/* initialize BMP header */ |
| 164 |
> |
/* record color space */ |
| 165 |
> |
addBMPcspace(rgbp, gamcor); |
| 166 |
> |
/* open output/write BMP header */ |
| 167 |
|
if (rgbp == NULL) { |
| 168 |
|
hdr = BMPmappedHeader(scanlen(&rs), |
| 169 |
< |
numscans(&rs), 0, 256); |
| 169 |
> |
numscans(&rs), infolen+1, 256); |
| 170 |
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/* |
| 171 |
|
if (outfile != NULL) |
| 172 |
|
hdr->compr = BI_RLE8; |
| 173 |
|
*/ |
| 174 |
|
} else |
| 175 |
|
hdr = BMPtruecolorHeader(scanlen(&rs), |
| 176 |
< |
numscans(&rs), 0); |
| 176 |
> |
numscans(&rs), infolen+1); |
| 177 |
|
if (hdr == NULL) |
| 178 |
< |
quiterr("cannot initialize BMP header"); |
| 178 |
> |
quiterr("cannot create BMP output"); |
| 179 |
> |
/* copy info to BMP header */ |
| 180 |
> |
strcpy(BMPinfo(hdr), info); |
| 181 |
> |
clearInfo(); |
| 182 |
|
/* set up output direction */ |
| 183 |
|
hdr->yIsDown = ((outfile == NULL) | (hdr->compr == BI_RLE8)); |
| 184 |
|
/* open BMP output */ |
| 188 |
|
wtr = BMPopenOutputStream(stdout, hdr); |
| 189 |
|
if (wtr == NULL) |
| 190 |
|
quiterr("cannot allocate writer structure"); |
| 191 |
+ |
/* set up conversion */ |
| 192 |
+ |
setcolrgam(gamcor); |
| 193 |
|
/* convert file */ |
| 194 |
|
rad2bmp(stdin, wtr, !hdr->yIsDown, rgbp); |
| 195 |
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/* flush output */ |
| 209 |
|
} |
| 210 |
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|
| 211 |
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/* print message and exit */ |
| 212 |
< |
static void |
| 212 |
> |
void |
| 213 |
|
quiterr(const char *err) |
| 214 |
|
{ |
| 215 |
|
if (err != NULL) { |
| 219 |
|
exit(0); |
| 220 |
|
} |
| 221 |
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|
| 222 |
+ |
/* grow (or shrink) saved info header string */ |
| 223 |
+ |
char * |
| 224 |
+ |
growInfo(int n) |
| 225 |
+ |
{ |
| 226 |
+ |
char *ns = NULL; |
| 227 |
+ |
|
| 228 |
+ |
if (infolen + n <= 0) { |
| 229 |
+ |
if (info) free(info); |
| 230 |
+ |
info = ""; |
| 231 |
+ |
infolen = 0; |
| 232 |
+ |
return(NULL); |
| 233 |
+ |
} |
| 234 |
+ |
if (infolen) |
| 235 |
+ |
info = (char *)realloc(info, infolen+n+1); |
| 236 |
+ |
else |
| 237 |
+ |
info = (char *)malloc(n+1); |
| 238 |
+ |
|
| 239 |
+ |
if (info == NULL) |
| 240 |
+ |
quiterr("out of memory in growInfo()"); |
| 241 |
+ |
|
| 242 |
+ |
if (n > 0) memset(ns = info+infolen, 0, n+1); |
| 243 |
+ |
|
| 244 |
+ |
infolen += n; |
| 245 |
+ |
return(ns); |
| 246 |
+ |
} |
| 247 |
+ |
|
| 248 |
|
/* process header line (don't echo) */ |
| 249 |
< |
static int |
| 249 |
> |
int |
| 250 |
|
headline(char *s, void *p) |
| 251 |
|
{ |
| 252 |
< |
char fmt[32]; |
| 252 |
> |
char fmt[MAXFMTLEN]; |
| 253 |
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|
| 254 |
+ |
if (isheadid(s)) /* skip header magic ID */ |
| 255 |
+ |
return(0); |
| 256 |
|
if (formatval(fmt, s)) { /* check if format string */ |
| 257 |
|
if (!strcmp(fmt,COLRFMT)) |
| 258 |
|
return(0); |
| 260 |
|
rgbinp = TM_XYZPRIM; |
| 261 |
|
return(0); |
| 262 |
|
} |
| 263 |
+ |
if (!strcmp(fmt,SPECFMT)) |
| 264 |
+ |
return(0); |
| 265 |
|
return(-1); |
| 266 |
|
} |
| 267 |
|
if (isprims(s)) { /* get input primaries */ |
| 269 |
|
rgbinp = myinprims; |
| 270 |
|
return(0); |
| 271 |
|
} |
| 272 |
< |
/* should I grok colcorr also? */ |
| 273 |
< |
return(0); |
| 272 |
> |
if (isexpos(s)) |
| 273 |
> |
return(0); /* ignore this on input */ |
| 274 |
> |
if (!strncmp(s, "GAMMA=", 6)) |
| 275 |
> |
return(0); /* should not be here! */ |
| 276 |
> |
if (isncomp(s)) { |
| 277 |
> |
NCSAMP = ncompval(s); |
| 278 |
> |
return(0); |
| 279 |
> |
} |
| 280 |
> |
if (iswlsplit(s)) { |
| 281 |
> |
wlsplitval(WLPART, s); |
| 282 |
> |
return(0); |
| 283 |
> |
} |
| 284 |
> |
add2info(s); /* else save info string */ |
| 285 |
> |
return(1); |
| 286 |
|
} |
| 287 |
|
|
| 288 |
+ |
/* add BMP output color space to info string */ |
| 289 |
+ |
void |
| 290 |
+ |
addBMPcspace(RGBPRIMP pp, double gamma) |
| 291 |
+ |
{ |
| 292 |
+ |
char ibuf[196]; |
| 293 |
+ |
char *cp = ibuf; |
| 294 |
|
|
| 295 |
+ |
sprintf(cp, "GAMMA=%.2f\n", gamma); |
| 296 |
+ |
cp += strlen(cp); |
| 297 |
+ |
if (pp != NULL) { |
| 298 |
+ |
sprintf(cp, |
| 299 |
+ |
"%s %.4f %.4f %.4f %.4f %.4f %.4f %.4f %.4f\n", |
| 300 |
+ |
PRIMARYSTR, |
| 301 |
+ |
pp[RED][CIEX],pp[RED][CIEY], |
| 302 |
+ |
pp[GRN][CIEX],pp[GRN][CIEY], |
| 303 |
+ |
pp[BLU][CIEX],pp[BLU][CIEY], |
| 304 |
+ |
pp[WHT][CIEX],pp[WHT][CIEY]); |
| 305 |
+ |
/* cp += strlen(cp); */ |
| 306 |
+ |
} |
| 307 |
+ |
add2info(ibuf); |
| 308 |
+ |
} |
| 309 |
+ |
|
| 310 |
+ |
/* write out Radiance header from BMP info string */ |
| 311 |
+ |
void |
| 312 |
+ |
info2rad(char *infs, int len, FILE *fout) |
| 313 |
+ |
{ |
| 314 |
+ |
char *cp; |
| 315 |
+ |
/* must fit metadata profile */ |
| 316 |
+ |
if (len < 3 || infs[0] == '\n' || |
| 317 |
+ |
infs[--len] != '\0' || infs[len-1] != '\n') |
| 318 |
+ |
return; /* not what we expected */ |
| 319 |
+ |
if (strlen(infs) < len || strstr(infs, "\n\n") != NULL) |
| 320 |
+ |
return; /* also not cool */ |
| 321 |
+ |
/* check for gamma */ |
| 322 |
+ |
if ((cp = strstr(infs, "GAMMA=")) != NULL) { |
| 323 |
+ |
/* copy what came before */ |
| 324 |
+ |
fwrite(infs, 1, cp-infs, fout); |
| 325 |
+ |
cp += 6; |
| 326 |
+ |
gamcor = atof(cp); /* record setting */ |
| 327 |
+ |
while (*cp++ != '\n') |
| 328 |
+ |
; |
| 329 |
+ |
len -= cp - infs; |
| 330 |
+ |
infs = cp; /* & elide from output */ |
| 331 |
+ |
} |
| 332 |
+ |
fputs(infs, fout); /* copy the remainder */ |
| 333 |
+ |
} |
| 334 |
+ |
|
| 335 |
|
/* convert Radiance picture to BMP */ |
| 336 |
< |
static void |
| 336 |
> |
void |
| 337 |
|
rad2bmp(FILE *rfp, BMPWriter *bwr, int inv, RGBPRIMP monpri) |
| 338 |
|
{ |
| 339 |
|
int usexfm = 0; |
| 347 |
|
if (scanin == NULL) |
| 348 |
|
quiterr("out of memory in rad2bmp"); |
| 349 |
|
/* set up color conversion */ |
| 350 |
< |
usexfm = (monpri != NULL ? rgbinp != monpri : |
| 351 |
< |
rgbinp != TM_XYZPRIM && rgbinp != stdprims); |
| 350 |
> |
usexfm = (monpri != NULL) ? (rgbinp != monpri) : |
| 351 |
> |
((rgbinp != TM_XYZPRIM) & (rgbinp != stdprims)); |
| 352 |
|
if (usexfm) { |
| 353 |
< |
double expcomp = pow(2.0, (double)bradj); |
| 353 |
> |
RGBPRIMP destpri = monpri != NULL ? monpri : stdprims; |
| 354 |
> |
double expcomp = pow(2.0, (double)bradj); |
| 355 |
|
if (rgbinp == TM_XYZPRIM) |
| 356 |
< |
compxyz2rgbWBmat(xfm, monpri); |
| 356 |
> |
compxyz2rgbWBmat(xfm, destpri); |
| 357 |
|
else |
| 358 |
< |
comprgb2rgbWBmat(xfm, rgbinp, monpri); |
| 358 |
> |
comprgb2rgbWBmat(xfm, rgbinp, destpri); |
| 359 |
|
for (y = 0; y < 3; y++) |
| 360 |
|
for (x = 0; x < 3; x++) |
| 361 |
|
xfm[y][x] *= expcomp; |
| 370 |
|
} |
| 371 |
|
/* convert each scanline */ |
| 372 |
|
for ( ; y != yend; y += ystp) { |
| 373 |
< |
if (freadcolrs(scanin, bwr->hdr->width, rfp) < 0) |
| 373 |
> |
if (fread2colrs(scanin, bwr->hdr->width, rfp, NCSAMP, WLPART) < 0) |
| 374 |
|
quiterr("error reading Radiance picture"); |
| 375 |
|
if (usexfm) |
| 376 |
|
for (x = bwr->hdr->width; x--; ) { |
| 382 |
|
} |
| 383 |
|
else if (bradj) |
| 384 |
|
shiftcolrs(scanin, bwr->hdr->width, bradj); |
| 385 |
< |
if (monpri == NULL && rgbinp != TM_XYZPRIM) |
| 385 |
> |
if ((monpri == NULL) & (rgbinp != TM_XYZPRIM)) |
| 386 |
|
for (x = bwr->hdr->width; x--; ) |
| 387 |
|
scanin[x][GRN] = normbright(scanin[x]); |
| 388 |
|
colrs_gambs(scanin, bwr->hdr->width); |
| 400 |
|
if (x != BIR_OK) |
| 401 |
|
quiterr(BMPerrorMessage(x)); |
| 402 |
|
} |
| 403 |
< |
/* free scanline */ |
| 303 |
< |
free((void *)scanin); |
| 403 |
> |
free(scanin); /* free scanline */ |
| 404 |
|
} |
| 405 |
|
|
| 406 |
|
/* convert BMP file to Radiance */ |
| 407 |
< |
static void |
| 407 |
> |
void |
| 408 |
|
bmp2rad(BMPReader *brd, FILE *rfp, int inv) |
| 409 |
|
{ |
| 410 |
|
COLR *scanout; |
| 439 |
|
if (fwritecolrs(scanout, brd->hdr->width, rfp) < 0) |
| 440 |
|
quiterr("error writing Radiance picture"); |
| 441 |
|
} |
| 442 |
< |
/* clean up */ |
| 343 |
< |
free((void *)scanout); |
| 442 |
> |
free(scanout); /* clean up */ |
| 443 |
|
} |
| 444 |
|
|
| 445 |
|
/* Tone-map and convert Radiance picture */ |
| 446 |
< |
static void |
| 446 |
> |
void |
| 447 |
|
tmap2bmp(char *fnin, char *fnout, char *expec, RGBPRIMP monpri, double gamval) |
| 448 |
|
{ |
| 449 |
|
int tmflags; |
| 451 |
|
BMPWriter *wtr; |
| 452 |
|
FILE *fp; |
| 453 |
|
int xr, yr; |
| 454 |
< |
BYTE *pa; |
| 454 |
> |
uby8 *pa; |
| 455 |
|
int i; |
| 456 |
|
/* check tone-mapping spec */ |
| 457 |
|
i = strlen(expec); |
| 463 |
|
tmflags = TM_F_LINEAR; |
| 464 |
|
else |
| 465 |
|
quiterr("illegal exposure specification (auto|human|linear)"); |
| 466 |
< |
if (monpri == NULL) { |
| 467 |
< |
tmflags |= TM_F_BW; |
| 369 |
< |
monpri = stdprims; |
| 370 |
< |
} |
| 466 |
> |
|
| 467 |
> |
tmflags |= (monpri == NULL)*TM_F_BW; |
| 468 |
|
/* open Radiance input */ |
| 469 |
|
if (fnin == NULL) |
| 470 |
|
fp = stdin; |
| 473 |
|
exit(1); |
| 474 |
|
} |
| 475 |
|
/* tone-map picture */ |
| 476 |
< |
if (tmMapPicture(&pa, &xr, &yr, tmflags, monpri, gamval, |
| 476 |
> |
if (tmMapPicture(&pa, &xr, &yr, tmflags, |
| 477 |
> |
tmflags&TM_F_BW ? stdprims : monpri, gamval, |
| 478 |
|
0., 0., fnin, fp) != TM_E_OK) |
| 479 |
|
exit(1); |
| 480 |
+ |
/* try to retrieve info */ |
| 481 |
+ |
if (fseek(fp, 0L, SEEK_SET) == 0) |
| 482 |
+ |
getheader(fp, headline, NULL); |
| 483 |
+ |
/* add output color space */ |
| 484 |
+ |
addBMPcspace(monpri, gamval); |
| 485 |
|
/* initialize BMP header */ |
| 486 |
|
if (tmflags & TM_F_BW) { |
| 487 |
< |
hdr = BMPmappedHeader(xr, yr, 0, 256); |
| 487 |
> |
hdr = BMPmappedHeader(xr, yr, infolen+1, 256); |
| 488 |
|
if (fnout != NULL) |
| 489 |
|
hdr->compr = BI_RLE8; |
| 490 |
|
} else |
| 491 |
< |
hdr = BMPtruecolorHeader(xr, yr, 0); |
| 491 |
> |
hdr = BMPtruecolorHeader(xr, yr, infolen+1); |
| 492 |
|
if (hdr == NULL) |
| 493 |
|
quiterr("cannot initialize BMP header"); |
| 494 |
+ |
|
| 495 |
+ |
strcpy(BMPinfo(hdr), info); /* copy info if any */ |
| 496 |
+ |
clearInfo(); |
| 497 |
|
/* open BMP output */ |
| 498 |
|
if (fnout != NULL) |
| 499 |
|
wtr = BMPopenOutputFile(fnout, hdr); |
| 503 |
|
quiterr("cannot allocate writer structure"); |
| 504 |
|
/* write to BMP file */ |
| 505 |
|
while (wtr->yscan < yr) { |
| 506 |
< |
BYTE *scn = pa + xr*((tmflags & TM_F_BW) ? 1 : 3)* |
| 506 |
> |
uby8 *scn = pa + xr*((tmflags & TM_F_BW) ? 1 : 3)* |
| 507 |
|
(yr-1 - wtr->yscan); |
| 508 |
|
if (tmflags & TM_F_BW) |
| 509 |
< |
memcpy((void *)wtr->scanline, (void *)scn, xr); |
| 509 |
> |
memcpy(wtr->scanline, scn, xr); |
| 510 |
|
else |
| 511 |
|
for (i = xr; i--; ) { |
| 512 |
|
wtr->scanline[3*i] = scn[3*i+BLU]; |
| 522 |
|
/* clean up */ |
| 523 |
|
if (fnin != NULL) |
| 524 |
|
fclose(fp); |
| 525 |
< |
free((void *)pa); |
| 525 |
> |
free(pa); |
| 526 |
|
BMPcloseOutput(wtr); |
| 527 |
|
} |