12 |
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#include "copyright.h" |
13 |
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|
14 |
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#include <stdio.h> |
15 |
+ |
#include <stdlib.h> |
16 |
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#include <math.h> |
17 |
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#include "tmprivat.h" |
18 |
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#include "tmerrmsg.h" |
134 |
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if (tms->inppri != tms->monpri && |
135 |
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PRIMEQ(tms->inppri, tms->monpri)) |
136 |
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tms->inppri = tms->monpri; /* no xform */ |
137 |
< |
comprgb2rgbWBmat(tms->cmat, tms->inppri, tms->monpri); |
137 |
> |
if (!comprgb2rgbWBmat(tms->cmat, tms->inppri, tms->monpri)) |
138 |
> |
returnErr(TM_E_ILLEGAL); |
139 |
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} |
140 |
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for (i = 0; i < 3; i++) |
141 |
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for (j = 0; j < 3; j++) |
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tms->cmat[i][j] *= tms->inpsf; |
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/* set color divisors */ |
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for (i = 0; i < 3; i++) |
145 |
< |
if (tms->clf[i] > .001) |
146 |
< |
tms->cdiv[i] = |
145 |
< |
256.*pow(tms->clf[i], 1./tms->mongam); |
146 |
< |
else |
147 |
< |
tms->cdiv[i] = 1; |
145 |
> |
tms->cdiv[i] = 256.*pow(tms->clf[i] < .001 ? .001 : |
146 |
> |
tms->clf[i], 1./tms->mongam); |
147 |
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/* notify packages */ |
148 |
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for (i = tmNumPkgs; i--; ) |
149 |
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if (tms->pd[i] != NULL && tmPkg[i]->NewSpace != NULL) |
178 |
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#endif |
179 |
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return(TM_NOBRT); |
180 |
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d = TM_BRTSCALE*log(lum); |
181 |
< |
if (d > 0.) |
183 |
< |
return((TMbright)(d+.5)); |
184 |
< |
return((TMbright)(d-.5)); |
181 |
> |
return((TMbright)(d + .5 - (d < 0.))); |
182 |
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} |
183 |
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|
184 |
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|
252 |
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tmCvColors( /* convert float colors */ |
253 |
|
TMstruct *tms, |
254 |
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TMbright *ls, |
255 |
< |
BYTE *cs, |
255 |
> |
uby8 *cs, |
256 |
|
COLOR *scan, |
257 |
|
int len |
258 |
|
) |
259 |
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{ |
260 |
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static const char funcName[] = "tmCvColors"; |
261 |
< |
static BYTE gamtab[1024]; |
261 |
> |
static uby8 gamtab[1024]; |
262 |
|
static double curgam = .0; |
263 |
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COLOR cmon; |
264 |
|
float lum, slum, d; |
360 |
|
tms->hbrmin = tms->hbrmax = ls[i]; |
361 |
|
oldlen = 0; |
362 |
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} else { |
363 |
< |
oldorig = (tms->hbrmin-MINBRT)/HISTEP; |
364 |
< |
oldlen = (tms->hbrmax-MINBRT)/HISTEP + 1 - oldorig; |
363 |
> |
oldorig = HISTI(tms->hbrmin); |
364 |
> |
oldlen = HISTI(tms->hbrmax) + 1 - oldorig; |
365 |
|
} |
366 |
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for (i = len; i--; ) { |
367 |
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if ((j = ls[i]) < MINBRT) |
371 |
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else if (j > tms->hbrmax) |
372 |
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tms->hbrmax = j; |
373 |
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} |
374 |
< |
horig = (tms->hbrmin-MINBRT)/HISTEP; |
375 |
< |
hlen = (tms->hbrmax-MINBRT)/HISTEP + 1 - horig; |
374 |
> |
horig = HISTI(tms->hbrmin); |
375 |
> |
hlen = HISTI(tms->hbrmax) + 1 - horig; |
376 |
|
if (hlen > oldlen) { /* (re)allocate histogram */ |
377 |
|
int *newhist = (int *)calloc(hlen, sizeof(int)); |
378 |
|
if (newhist == NULL) |
388 |
|
returnOK; |
389 |
|
for (i = len; i--; ) /* add in new counts */ |
390 |
|
if (ls[i] >= MINBRT) |
391 |
< |
tms->histo[ (ls[i]-MINBRT)/HISTEP - horig ] += wt; |
391 |
> |
tms->histo[ HISTI(ls[i]) - horig ] += wt; |
392 |
|
returnOK; |
393 |
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} |
394 |
|
|
416 |
|
} |
417 |
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|
418 |
|
|
422 |
– |
static int |
423 |
– |
tmNewMap( /* allocate new tone-mapping array */ |
424 |
– |
TMstruct *tms |
425 |
– |
) |
426 |
– |
{ |
427 |
– |
if (tms->lumap != NULL && (tms->mbrmax - tms->mbrmin) != |
428 |
– |
(tms->hbrmax - tms->hbrmin)) { |
429 |
– |
free((MEM_PTR)tms->lumap); |
430 |
– |
tms->lumap = NULL; |
431 |
– |
} |
432 |
– |
tms->mbrmin = tms->hbrmin; |
433 |
– |
tms->mbrmax = tms->hbrmax; |
434 |
– |
if (tms->mbrmin > tms->mbrmax) |
435 |
– |
return 0; |
436 |
– |
if (tms->lumap == NULL) |
437 |
– |
tms->lumap = (unsigned short *)malloc(sizeof(unsigned short)* |
438 |
– |
(tms->mbrmax-tms->mbrmin+1)); |
439 |
– |
return(tms->lumap != NULL); |
440 |
– |
} |
441 |
– |
|
442 |
– |
|
419 |
|
int |
420 |
|
tmFixedMapping( /* compute fixed, linear tone-mapping */ |
421 |
|
TMstruct *tms, |
434 |
|
if (gamval < MINGAM) |
435 |
|
gamval = tms->mongam; |
436 |
|
d = log(expmult/tms->inpsf); |
437 |
< |
for (i = tms->mbrmax-tms->mbrmin+1; i--; ) |
438 |
< |
tms->lumap[i] = 256. * exp( |
437 |
> |
for (i = tms->mbrmax-tms->mbrmin+1; i--; ) { |
438 |
> |
double val = 256. * exp( |
439 |
|
( d + (tms->mbrmin+i)*(1./TM_BRTSCALE) ) |
440 |
< |
/ gamval ); |
440 |
> |
/ gamval); |
441 |
> |
tms->lumap[i] = val >= (double)0xffff ? 0xffff : (int)val; |
442 |
> |
} |
443 |
|
returnOK; |
444 |
|
} |
445 |
|
|
472 |
|
Ldmin = Ldmax/Lddyn; |
473 |
|
logLddyn = log(Lddyn); |
474 |
|
Ldavg = sqrt(Ldmax*Ldmin); |
475 |
< |
i = (tms->hbrmin-MINBRT)/HISTEP; |
476 |
< |
brt0 = MINBRT + HISTEP/2 + i*HISTEP; |
477 |
< |
histlen = (tms->hbrmax-MINBRT)/HISTEP + 1 - i; |
475 |
> |
i = HISTI(tms->hbrmin); |
476 |
> |
brt0 = HISTV(i); |
477 |
> |
histlen = HISTI(tms->hbrmax) + 1 - i; |
478 |
|
/* histogram total and mean */ |
479 |
|
histot = 0; sum = 0; |
480 |
|
j = brt0 + histlen*HISTEP; |
481 |
|
for (i = histlen; i--; ) { |
482 |
|
histot += tms->histo[i]; |
483 |
< |
sum += (j -= HISTEP) * tms->histo[i]; |
483 |
> |
sum += (double)(j -= HISTEP) * tms->histo[i]; |
484 |
|
} |
485 |
|
threshold = histot*0.005 + .5; |
486 |
< |
if (threshold < 4) |
486 |
> |
if (!histot) |
487 |
|
returnErr(TM_E_TMFAIL); |
488 |
|
Lwavg = tmLuminance( (double)sum / histot ); |
511 |
– |
/* allocate space for mapping */ |
512 |
– |
if (!tmNewMap(tms)) |
513 |
– |
returnErr(TM_E_NOMEM); |
489 |
|
/* use linear tone mapping? */ |
490 |
< |
if (tms->flags & TM_F_LINEAR) |
490 |
> |
if (tms->flags & TM_F_LINEAR || threshold < 4 || |
491 |
> |
tms->hbrmax - tms->hbrmin < TM_BRTSCALE*logLddyn) |
492 |
|
goto linearmap; |
493 |
|
/* clamp histogram */ |
494 |
|
histo = (int *)malloc(histlen*sizeof(int)); |
529 |
|
goto linearmap; |
530 |
|
} |
531 |
|
} while (trimmings > threshold); |
532 |
+ |
/* allocate space for mapping */ |
533 |
+ |
if (!tmNewMap(tms)) |
534 |
+ |
returnErr(TM_E_NOMEM); |
535 |
|
/* assign tone-mapping */ |
536 |
|
for (i = tms->mbrmax-tms->mbrmin+1; i--; ) { |
537 |
|
j = d = (double)i/(tms->mbrmax-tms->mbrmin)*histlen; |
555 |
|
int |
556 |
|
tmMapPixels( /* apply tone-mapping to pixel(s) */ |
557 |
|
TMstruct *tms, |
558 |
< |
BYTE *ps, |
558 |
> |
uby8 *ps, |
559 |
|
TMbright *ls, |
560 |
< |
BYTE *cs, |
560 |
> |
uby8 *cs, |
561 |
|
int len |
562 |
|
) |
563 |
|
{ |
591 |
|
} |
592 |
|
|
593 |
|
|
615 |
– |
|
616 |
– |
|
594 |
|
TMstruct * |
595 |
|
tmDup( /* duplicate top tone mapping */ |
596 |
|
TMstruct *tms |
607 |
|
return(NULL); |
608 |
|
*tmnew = *tms; /* copy everything */ |
609 |
|
if (tmnew->histo != NULL) { /* duplicate histogram */ |
610 |
< |
len = (tmnew->hbrmax-MINBRT)/HISTEP + 1 - |
634 |
< |
(tmnew->hbrmin-MINBRT)/HISTEP; |
610 |
> |
len = HISTI(tmnew->hbrmax) + 1 - HISTI(tmnew->hbrmin); |
611 |
|
tmnew->histo = (int *)malloc(len*sizeof(int)); |
612 |
|
if (tmnew->histo != NULL) |
613 |
|
for (i = len; i--; ) |
651 |
|
|
652 |
|
/******************** Shared but Private library routines *********************/ |
653 |
|
|
654 |
< |
BYTE tmMesofact[BMESUPPER-BMESLOWER]; |
654 |
> |
uby8 tmMesofact[BMESUPPER-BMESLOWER]; |
655 |
|
|
656 |
|
void |
657 |
|
tmMkMesofact() /* build mesopic lookup factor table */ |
665 |
|
tmMesofact[i-BMESLOWER] = 256. * |
666 |
|
(tmLuminance(i) - LMESLOWER) / |
667 |
|
(LMESUPPER - LMESLOWER); |
668 |
+ |
} |
669 |
+ |
|
670 |
+ |
|
671 |
+ |
int |
672 |
+ |
tmNewMap( /* allocate new tone-mapping array */ |
673 |
+ |
TMstruct *tms |
674 |
+ |
) |
675 |
+ |
{ |
676 |
+ |
if (tms->lumap != NULL && (tms->mbrmax - tms->mbrmin) != |
677 |
+ |
(tms->hbrmax - tms->hbrmin)) { |
678 |
+ |
free((MEM_PTR)tms->lumap); |
679 |
+ |
tms->lumap = NULL; |
680 |
+ |
} |
681 |
+ |
tms->mbrmin = tms->hbrmin; |
682 |
+ |
tms->mbrmax = tms->hbrmax; |
683 |
+ |
if (tms->mbrmin > tms->mbrmax) |
684 |
+ |
return 0; |
685 |
+ |
if (tms->lumap == NULL) |
686 |
+ |
tms->lumap = (unsigned short *)malloc(sizeof(unsigned short)* |
687 |
+ |
(tms->mbrmax-tms->mbrmin+1)); |
688 |
+ |
return(tms->lumap != NULL); |
689 |
|
} |
690 |
|
|
691 |
|
|