12 |
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#include "copyright.h" |
13 |
|
|
14 |
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#include <stdio.h> |
15 |
+ |
#include <stdlib.h> |
16 |
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#include <math.h> |
17 |
+ |
#include <string.h> |
18 |
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#include "tmprivat.h" |
19 |
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#include "tmerrmsg.h" |
20 |
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|
25 |
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int tmNumPkgs = 0; /* number of registered packages */ |
26 |
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|
27 |
|
/* luminance->brightness lookup */ |
28 |
< |
static TMbright *tmFloat2BrtLUT; |
28 |
> |
static TMbright *tmFloat2BrtLUT = NULL; |
29 |
|
|
30 |
|
#define tmCvLumLUfp(pf) tmFloat2BrtLUT[*(int32 *)(pf) >> 15] |
31 |
|
|
55 |
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tmnew->clf[GRN] = rgb2xyzmat[1][1]; |
56 |
|
tmnew->clf[BLU] = rgb2xyzmat[1][2]; |
57 |
|
} else { |
58 |
< |
comprgb2xyzWBmat(cmat, tmnew->monpri=monpri); |
58 |
> |
comprgb2xyzmat(cmat, tmnew->monpri=monpri); |
59 |
|
tmnew->clf[RED] = cmat[1][0]; |
60 |
|
tmnew->clf[GRN] = cmat[1][1]; |
61 |
|
tmnew->clf[BLU] = cmat[1][2]; |
118 |
|
tms->clf[CIEX] = tms->clf[CIEZ] = 0.; |
119 |
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tms->clf[CIEY] = 1.; |
120 |
|
} else { |
121 |
< |
comprgb2xyzWBmat(tms->cmat, tms->monpri); |
121 |
> |
comprgb2xyzmat(tms->cmat, tms->monpri); |
122 |
|
tms->clf[RED] = tms->cmat[1][0]; |
123 |
|
tms->clf[GRN] = tms->cmat[1][1]; |
124 |
|
tms->clf[BLU] = tms->cmat[1][2]; |
135 |
|
if (tms->inppri != tms->monpri && |
136 |
|
PRIMEQ(tms->inppri, tms->monpri)) |
137 |
|
tms->inppri = tms->monpri; /* no xform */ |
138 |
< |
comprgb2rgbWBmat(tms->cmat, tms->inppri, tms->monpri); |
138 |
> |
if (!comprgb2rgbWBmat(tms->cmat, tms->inppri, tms->monpri)) |
139 |
> |
returnErr(TM_E_ILLEGAL); |
140 |
|
} |
141 |
|
for (i = 0; i < 3; i++) |
142 |
|
for (j = 0; j < 3; j++) |
143 |
|
tms->cmat[i][j] *= tms->inpsf; |
144 |
|
/* set color divisors */ |
145 |
|
for (i = 0; i < 3; i++) |
146 |
< |
if (tms->clf[i] > .001) |
147 |
< |
tms->cdiv[i] = |
145 |
< |
256.*pow(tms->clf[i], 1./tms->mongam); |
146 |
< |
else |
147 |
< |
tms->cdiv[i] = 1; |
146 |
> |
tms->cdiv[i] = 256.*pow(tms->clf[i] < .001 ? .001 : |
147 |
> |
tms->clf[i], 1./tms->mongam); |
148 |
|
/* notify packages */ |
149 |
|
for (i = tmNumPkgs; i--; ) |
150 |
|
if (tms->pd[i] != NULL && tmPkg[i]->NewSpace != NULL) |
179 |
|
#endif |
180 |
|
return(TM_NOBRT); |
181 |
|
d = TM_BRTSCALE*log(lum); |
182 |
< |
if (d > 0.) |
183 |
< |
return((TMbright)(d+.5)); |
184 |
< |
return((TMbright)(d-.5)); |
182 |
> |
return((TMbright)(d + .5 - (d < 0.))); |
183 |
|
} |
184 |
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|
185 |
|
|
230 |
|
) |
231 |
|
{ |
232 |
|
static const char funcName[] = "tmCvGrays"; |
235 |
– |
double d; |
233 |
|
int i; |
234 |
|
|
235 |
|
if (tms == NULL) |
236 |
|
returnErr(TM_E_TMINVAL); |
237 |
|
if ((ls == NULL) | (scan == NULL) | (len < 0)) |
238 |
|
returnErr(TM_E_ILLEGAL); |
239 |
+ |
if (tmFloat2BrtLUT == NULL) /* initialize */ |
240 |
+ |
tmCvLums(NULL, NULL, 0); |
241 |
|
for (i = len; i--; ) { |
242 |
|
float lum = tms->inpsf * scan[i]; |
243 |
|
if (lum <= TM_NOLUM) |
253 |
|
tmCvColors( /* convert float colors */ |
254 |
|
TMstruct *tms, |
255 |
|
TMbright *ls, |
256 |
< |
BYTE *cs, |
256 |
> |
uby8 *cs, |
257 |
|
COLOR *scan, |
258 |
|
int len |
259 |
|
) |
260 |
|
{ |
261 |
|
static const char funcName[] = "tmCvColors"; |
262 |
< |
static COLOR csmall = {.5*MINLUM, .5*MINLUM, .5*MINLUM}; |
264 |
< |
static BYTE gamtab[1024]; |
262 |
> |
static uby8 gamtab[1024]; |
263 |
|
static double curgam = .0; |
264 |
|
COLOR cmon; |
265 |
|
float lum, slum, d; |
269 |
|
returnErr(TM_E_TMINVAL); |
270 |
|
if ((ls == NULL) | (scan == NULL) | (len < 0)) |
271 |
|
returnErr(TM_E_ILLEGAL); |
272 |
< |
tmCvLums(NULL, NULL, 0); /* initialize */ |
272 |
> |
if (tmFloat2BrtLUT == NULL) /* initialize */ |
273 |
> |
tmCvLums(NULL, NULL, 0); |
274 |
|
if (cs != TM_NOCHROM && fabs(tms->mongam - curgam) > .02) { |
275 |
|
curgam = tms->mongam; /* (re)build table */ |
276 |
|
for (i = 1024; i--; ) |
297 |
|
lum = tms->clf[RED]*cmon[RED] + |
298 |
|
tms->clf[GRN]*cmon[GRN] + |
299 |
|
tms->clf[BLU]*cmon[BLU] ; |
300 |
< |
if (lum <= TM_NOLUM) /* convert brightness */ |
300 |
> |
if (lum <= TM_NOLUM) { /* convert brightness */ |
301 |
> |
lum = cmon[RED] = cmon[GRN] = cmon[BLU] = TM_NOLUM; |
302 |
|
ls[i] = TM_NOBRT; |
303 |
< |
else |
303 |
> |
} else |
304 |
|
ls[i] = tmCvLumLUfp(&lum); |
305 |
|
if (cs == TM_NOCHROM) /* no color? */ |
306 |
|
continue; |
307 |
|
if (tms->flags & TM_F_MESOPIC && lum < LMESUPPER) { |
308 |
|
slum = scotlum(cmon); /* mesopic adj. */ |
309 |
< |
if (lum < LMESLOWER) |
309 |
> |
if (lum < LMESLOWER) { |
310 |
|
cmon[RED] = cmon[GRN] = cmon[BLU] = slum; |
311 |
< |
else { |
311 |
> |
} else { |
312 |
|
d = (lum - LMESLOWER)/(LMESUPPER - LMESLOWER); |
313 |
|
if (tms->flags & TM_F_BW) |
314 |
|
cmon[RED] = cmon[GRN] = |
361 |
|
tms->hbrmin = tms->hbrmax = ls[i]; |
362 |
|
oldlen = 0; |
363 |
|
} else { |
364 |
< |
oldorig = (tms->hbrmin-MINBRT)/HISTEP; |
365 |
< |
oldlen = (tms->hbrmax-MINBRT)/HISTEP + 1 - oldorig; |
364 |
> |
oldorig = HISTI(tms->hbrmin); |
365 |
> |
oldlen = HISTI(tms->hbrmax) + 1 - oldorig; |
366 |
|
} |
367 |
|
for (i = len; i--; ) { |
368 |
|
if ((j = ls[i]) < MINBRT) |
372 |
|
else if (j > tms->hbrmax) |
373 |
|
tms->hbrmax = j; |
374 |
|
} |
375 |
< |
horig = (tms->hbrmin-MINBRT)/HISTEP; |
376 |
< |
hlen = (tms->hbrmax-MINBRT)/HISTEP + 1 - horig; |
375 |
> |
horig = HISTI(tms->hbrmin); |
376 |
> |
hlen = HISTI(tms->hbrmax) + 1 - horig; |
377 |
|
if (hlen > oldlen) { /* (re)allocate histogram */ |
378 |
< |
int *newhist = (int *)calloc(hlen, sizeof(int)); |
378 |
> |
HIST_TYP *newhist = (HIST_TYP *)calloc(hlen, sizeof(HIST_TYP)); |
379 |
|
if (newhist == NULL) |
380 |
|
returnErr(TM_E_NOMEM); |
381 |
|
if (oldlen) { /* copy and free old */ |
382 |
< |
for (i = oldlen, j = i+oldorig-horig; i; ) |
383 |
< |
newhist[--j] = tms->histo[--i]; |
382 |
> |
memcpy((MEM_PTR)newhist+(oldorig-horig), |
383 |
> |
(MEM_PTR)tms->histo, oldlen*sizeof(HIST_TYP)); |
384 |
|
free((MEM_PTR)tms->histo); |
385 |
|
} |
386 |
|
tms->histo = newhist; |
389 |
|
returnOK; |
390 |
|
for (i = len; i--; ) /* add in new counts */ |
391 |
|
if (ls[i] >= MINBRT) |
392 |
< |
tms->histo[ (ls[i]-MINBRT)/HISTEP - horig ] += wt; |
392 |
> |
tms->histo[ HISTI(ls[i]) - horig ] += wt; |
393 |
|
returnOK; |
394 |
|
} |
395 |
|
|
417 |
|
} |
418 |
|
|
419 |
|
|
420 |
– |
static int |
421 |
– |
tmNewMap( /* allocate new tone-mapping array */ |
422 |
– |
TMstruct *tms |
423 |
– |
) |
424 |
– |
{ |
425 |
– |
if (tms->lumap != NULL && (tms->mbrmax - tms->mbrmin) != |
426 |
– |
(tms->hbrmax - tms->hbrmin)) { |
427 |
– |
free((MEM_PTR)tms->lumap); |
428 |
– |
tms->lumap = NULL; |
429 |
– |
} |
430 |
– |
tms->mbrmin = tms->hbrmin; |
431 |
– |
tms->mbrmax = tms->hbrmax; |
432 |
– |
if (tms->mbrmin > tms->mbrmax) |
433 |
– |
return 0; |
434 |
– |
if (tms->lumap == NULL) |
435 |
– |
tms->lumap = (unsigned short *)malloc(sizeof(unsigned short)* |
436 |
– |
(tms->mbrmax-tms->mbrmin+1)); |
437 |
– |
return(tms->lumap != NULL); |
438 |
– |
} |
439 |
– |
|
440 |
– |
|
420 |
|
int |
421 |
|
tmFixedMapping( /* compute fixed, linear tone-mapping */ |
422 |
|
TMstruct *tms, |
435 |
|
if (gamval < MINGAM) |
436 |
|
gamval = tms->mongam; |
437 |
|
d = log(expmult/tms->inpsf); |
438 |
< |
for (i = tms->mbrmax-tms->mbrmin+1; i--; ) |
439 |
< |
tms->lumap[i] = 256. * exp( |
438 |
> |
for (i = tms->mbrmax-tms->mbrmin+1; i--; ) { |
439 |
> |
double val = 256. * exp( |
440 |
|
( d + (tms->mbrmin+i)*(1./TM_BRTSCALE) ) |
441 |
< |
/ gamval ); |
441 |
> |
/ gamval); |
442 |
> |
tms->lumap[i] = val >= (double)0xffff ? 0xffff : (int)val; |
443 |
> |
} |
444 |
|
returnOK; |
445 |
|
} |
446 |
|
|
454 |
|
) |
455 |
|
{ |
456 |
|
static const char funcName[] = "tmComputeMapping"; |
457 |
< |
int *histo; |
457 |
> |
HIST_TYP *histo; |
458 |
|
float *cumf; |
459 |
< |
int brt0, histlen, threshold, ceiling, trimmings; |
459 |
> |
int brt0, histlen; |
460 |
> |
HIST_TYP threshold, ceiling, trimmings; |
461 |
|
double logLddyn, Ldmin, Ldavg, Lwavg, Tr, Lw, Ld; |
462 |
< |
int32 histot; |
462 |
> |
HIST_TYP histot; |
463 |
|
double sum; |
464 |
|
double d; |
465 |
|
int i, j; |
474 |
|
Ldmin = Ldmax/Lddyn; |
475 |
|
logLddyn = log(Lddyn); |
476 |
|
Ldavg = sqrt(Ldmax*Ldmin); |
477 |
< |
i = (tms->hbrmin-MINBRT)/HISTEP; |
478 |
< |
brt0 = MINBRT + HISTEP/2 + i*HISTEP; |
479 |
< |
histlen = (tms->hbrmax-MINBRT)/HISTEP + 1 - i; |
477 |
> |
i = HISTI(tms->hbrmin); |
478 |
> |
brt0 = HISTV(i); |
479 |
> |
histlen = HISTI(tms->hbrmax) + 1 - i; |
480 |
|
/* histogram total and mean */ |
481 |
|
histot = 0; sum = 0; |
482 |
|
j = brt0 + histlen*HISTEP; |
483 |
|
for (i = histlen; i--; ) { |
484 |
|
histot += tms->histo[i]; |
485 |
< |
sum += (j -= HISTEP) * tms->histo[i]; |
485 |
> |
sum += (double)(j -= HISTEP) * tms->histo[i]; |
486 |
|
} |
487 |
|
threshold = histot*0.005 + .5; |
488 |
< |
if (threshold < 4) |
488 |
> |
if (!histot) |
489 |
|
returnErr(TM_E_TMFAIL); |
490 |
|
Lwavg = tmLuminance( (double)sum / histot ); |
509 |
– |
/* allocate space for mapping */ |
510 |
– |
if (!tmNewMap(tms)) |
511 |
– |
returnErr(TM_E_NOMEM); |
491 |
|
/* use linear tone mapping? */ |
492 |
< |
if (tms->flags & TM_F_LINEAR) |
492 |
> |
if (tms->flags & TM_F_LINEAR || threshold < 4 || |
493 |
> |
tms->hbrmax - tms->hbrmin < TM_BRTSCALE*logLddyn) |
494 |
|
goto linearmap; |
495 |
|
/* clamp histogram */ |
496 |
< |
histo = (int *)malloc(histlen*sizeof(int)); |
496 |
> |
histo = (HIST_TYP *)malloc(histlen*sizeof(HIST_TYP)); |
497 |
|
cumf = (float *)malloc((histlen+2)*sizeof(float)); |
498 |
|
if ((histo == NULL) | (cumf == NULL)) |
499 |
|
returnErr(TM_E_NOMEM); |
531 |
|
goto linearmap; |
532 |
|
} |
533 |
|
} while (trimmings > threshold); |
534 |
+ |
/* allocate space for mapping */ |
535 |
+ |
if (!tmNewMap(tms)) |
536 |
+ |
returnErr(TM_E_NOMEM); |
537 |
|
/* assign tone-mapping */ |
538 |
|
for (i = tms->mbrmax-tms->mbrmin+1; i--; ) { |
539 |
|
j = d = (double)i/(tms->mbrmax-tms->mbrmin)*histlen; |
557 |
|
int |
558 |
|
tmMapPixels( /* apply tone-mapping to pixel(s) */ |
559 |
|
TMstruct *tms, |
560 |
< |
BYTE *ps, |
560 |
> |
uby8 *ps, |
561 |
|
TMbright *ls, |
562 |
< |
BYTE *cs, |
562 |
> |
uby8 *cs, |
563 |
|
int len |
564 |
|
) |
565 |
|
{ |
593 |
|
} |
594 |
|
|
595 |
|
|
613 |
– |
|
614 |
– |
|
596 |
|
TMstruct * |
597 |
|
tmDup( /* duplicate top tone mapping */ |
598 |
|
TMstruct *tms |
609 |
|
return(NULL); |
610 |
|
*tmnew = *tms; /* copy everything */ |
611 |
|
if (tmnew->histo != NULL) { /* duplicate histogram */ |
612 |
< |
len = (tmnew->hbrmax-MINBRT)/HISTEP + 1 - |
613 |
< |
(tmnew->hbrmin-MINBRT)/HISTEP; |
633 |
< |
tmnew->histo = (int *)malloc(len*sizeof(int)); |
612 |
> |
len = HISTI(tmnew->hbrmax) + 1 - HISTI(tmnew->hbrmin); |
613 |
> |
tmnew->histo = (HIST_TYP *)malloc(len*sizeof(HIST_TYP)); |
614 |
|
if (tmnew->histo != NULL) |
615 |
< |
for (i = len; i--; ) |
616 |
< |
tmnew->histo[i] = tms->histo[i]; |
615 |
> |
memcpy((MEM_PTR)tmnew->histo, (MEM_PTR)tms->histo, |
616 |
> |
len*sizeof(HIST_TYP)); |
617 |
|
} |
618 |
|
if (tmnew->lumap != NULL) { /* duplicate luminance mapping */ |
619 |
|
len = tmnew->mbrmax-tmnew->mbrmin+1; |
620 |
< |
tmnew->lumap = (unsigned short *)malloc( |
641 |
< |
len*sizeof(unsigned short) ); |
620 |
> |
tmnew->lumap = (TMAP_TYP *)malloc(len*sizeof(TMAP_TYP)); |
621 |
|
if (tmnew->lumap != NULL) |
622 |
< |
for (i = len; i--; ) |
623 |
< |
tmnew->lumap[i] = tms->lumap[i]; |
622 |
> |
memcpy((MEM_PTR)tmnew->lumap, (MEM_PTR)tms->lumap, |
623 |
> |
len*sizeof(TMAP_TYP)); |
624 |
|
} |
625 |
|
/* clear package data */ |
626 |
|
for (i = tmNumPkgs; i--; ) |
652 |
|
|
653 |
|
/******************** Shared but Private library routines *********************/ |
654 |
|
|
655 |
< |
BYTE tmMesofact[BMESUPPER-BMESLOWER]; |
655 |
> |
uby8 tmMesofact[BMESUPPER-BMESLOWER]; |
656 |
|
|
657 |
|
void |
658 |
|
tmMkMesofact() /* build mesopic lookup factor table */ |
666 |
|
tmMesofact[i-BMESLOWER] = 256. * |
667 |
|
(tmLuminance(i) - LMESLOWER) / |
668 |
|
(LMESUPPER - LMESLOWER); |
669 |
+ |
} |
670 |
+ |
|
671 |
+ |
|
672 |
+ |
int |
673 |
+ |
tmNewMap( /* allocate new tone-mapping array */ |
674 |
+ |
TMstruct *tms |
675 |
+ |
) |
676 |
+ |
{ |
677 |
+ |
if (tms->lumap != NULL && (tms->mbrmax - tms->mbrmin) != |
678 |
+ |
(tms->hbrmax - tms->hbrmin)) { |
679 |
+ |
free((MEM_PTR)tms->lumap); |
680 |
+ |
tms->lumap = NULL; |
681 |
+ |
} |
682 |
+ |
tms->mbrmin = tms->hbrmin; |
683 |
+ |
tms->mbrmax = tms->hbrmax; |
684 |
+ |
if (tms->mbrmin > tms->mbrmax) |
685 |
+ |
return 0; |
686 |
+ |
if (tms->lumap == NULL) |
687 |
+ |
tms->lumap = (TMAP_TYP *)malloc(sizeof(TMAP_TYP)* |
688 |
+ |
(tms->mbrmax-tms->mbrmin+1)); |
689 |
+ |
return(tms->lumap != NULL); |
690 |
|
} |
691 |
|
|
692 |
|
|