14 |
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#include <stdio.h> |
15 |
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#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 |
|
|
67 |
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tmnew->mongam = gamval; |
68 |
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/* set color divisors */ |
69 |
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for (i = 0; i < 3; i++) |
70 |
< |
tmnew->cdiv[i] = 256.*pow(tmnew->clf[i], 1./tmnew->mongam); |
70 |
> |
tmnew->cdiv[i] = TM_BRES*pow(tmnew->clf[i], 1./tmnew->mongam); |
71 |
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|
72 |
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/* set input transform */ |
73 |
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tmnew->inppri = tmnew->monpri; |
135 |
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if (tms->inppri != tms->monpri && |
136 |
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PRIMEQ(tms->inppri, tms->monpri)) |
137 |
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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 |
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} |
141 |
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for (i = 0; i < 3; i++) |
142 |
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for (j = 0; j < 3; j++) |
143 |
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tms->cmat[i][j] *= tms->inpsf; |
144 |
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/* set color divisors */ |
145 |
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for (i = 0; i < 3; i++) |
146 |
< |
if (tms->clf[i] > .001) |
147 |
< |
tms->cdiv[i] = |
146 |
< |
256.*pow(tms->clf[i], 1./tms->mongam); |
147 |
< |
else |
148 |
< |
tms->cdiv[i] = 1; |
146 |
> |
tms->cdiv[i] = TM_BRES*pow(tms->clf[i] < .001 ? .001 : |
147 |
> |
tms->clf[i], 1./tms->mongam); |
148 |
|
/* notify packages */ |
149 |
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for (i = tmNumPkgs; i--; ) |
150 |
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if (tms->pd[i] != NULL && tmPkg[i]->NewSpace != NULL) |
253 |
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tmCvColors( /* convert float colors */ |
254 |
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TMstruct *tms, |
255 |
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TMbright *ls, |
256 |
< |
BYTE *cs, |
256 |
> |
uby8 *cs, |
257 |
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COLOR *scan, |
258 |
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int len |
259 |
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) |
260 |
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{ |
261 |
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static const char funcName[] = "tmCvColors"; |
262 |
< |
static BYTE gamtab[1024]; |
262 |
> |
static uby8 gamtab[1024]; |
263 |
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static double curgam = .0; |
264 |
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COLOR cmon; |
265 |
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float lum, slum, d; |
375 |
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horig = HISTI(tms->hbrmin); |
376 |
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hlen = HISTI(tms->hbrmax) + 1 - horig; |
377 |
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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 |
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if (newhist == NULL) |
380 |
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returnErr(TM_E_NOMEM); |
381 |
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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 |
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free((MEM_PTR)tms->histo); |
385 |
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} |
386 |
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tms->histo = newhist; |
436 |
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gamval = tms->mongam; |
437 |
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d = log(expmult/tms->inpsf); |
438 |
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for (i = tms->mbrmax-tms->mbrmin+1; i--; ) { |
439 |
< |
double val = 256. * exp( |
439 |
> |
double val = TM_BRES * exp( |
440 |
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( d + (tms->mbrmin+i)*(1./TM_BRTSCALE) ) |
441 |
|
/ gamval); |
442 |
< |
tms->lumap[i] = val >= (double)0xffff ? 0xffff : (int)val; |
442 |
> |
tms->lumap[i] = val; |
443 |
> |
if (sizeof(TMAP_TYP) == 2 && val >= 0xffff) |
444 |
> |
tms->lumap[i] = 0xffff; |
445 |
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} |
446 |
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returnOK; |
447 |
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} |
456 |
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) |
457 |
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{ |
458 |
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static const char funcName[] = "tmComputeMapping"; |
459 |
< |
int *histo; |
459 |
> |
HIST_TYP *histo; |
460 |
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float *cumf; |
461 |
< |
int brt0, histlen, threshold, ceiling, trimmings; |
462 |
< |
double logLddyn, Ldmin, Ldavg, Lwavg, Tr, Lw, Ld; |
463 |
< |
int32 histot; |
461 |
> |
int brt0, histlen; |
462 |
> |
HIST_TYP threshold, ceiling, trimmings, histot; |
463 |
> |
double logLddyn, Ldmin, Lwavg, Tr, Lw, Ld; |
464 |
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double sum; |
465 |
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double d; |
466 |
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int i, j; |
474 |
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/* compute handy values */ |
475 |
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Ldmin = Ldmax/Lddyn; |
476 |
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logLddyn = log(Lddyn); |
476 |
– |
Ldavg = sqrt(Ldmax*Ldmin); |
477 |
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i = HISTI(tms->hbrmin); |
478 |
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brt0 = HISTV(i); |
479 |
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histlen = HISTI(tms->hbrmax) + 1 - i; |
484 |
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histot += tms->histo[i]; |
485 |
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sum += (double)(j -= HISTEP) * tms->histo[i]; |
486 |
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} |
487 |
< |
threshold = histot*0.005 + .5; |
487 |
> |
threshold = histot*0.002 + .5; |
488 |
|
if (!histot) |
489 |
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returnErr(TM_E_TMFAIL); |
490 |
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Lwavg = tmLuminance( (double)sum / histot ); |
493 |
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tms->hbrmax - tms->hbrmin < TM_BRTSCALE*logLddyn) |
494 |
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goto linearmap; |
495 |
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/* clamp histogram */ |
496 |
< |
histo = (int *)malloc(histlen*sizeof(int)); |
496 |
> |
histo = (HIST_TYP *)malloc(histlen*sizeof(HIST_TYP)); |
497 |
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cumf = (float *)malloc((histlen+2)*sizeof(float)); |
498 |
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if ((histo == NULL) | (cumf == NULL)) |
499 |
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returnErr(TM_E_NOMEM); |
500 |
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cumf[histlen+1] = 1.; /* guard for assignment code */ |
501 |
< |
for (i = histlen; i--; ) /* make malleable copy */ |
502 |
< |
histo[i] = tms->histo[i]; |
501 |
> |
/* make malleable copy */ |
502 |
> |
memcpy((MEM_PTR)histo, (MEM_PTR)tms->histo, histlen*sizeof(HIST_TYP)); |
503 |
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do { /* iterate to solution */ |
504 |
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sum = 0; /* cumulative probability */ |
505 |
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for (i = 0; i < histlen; i++) { |
506 |
< |
cumf[i] = (double)sum/histot; |
507 |
< |
sum += histo[i]; |
506 |
> |
cumf[i] = sum/histot; |
507 |
> |
sum += (double)histo[i]; |
508 |
|
} |
509 |
|
cumf[histlen] = 1.; |
510 |
|
Tr = histot * (double)(tms->hbrmax - tms->hbrmin) / |
511 |
< |
((double)histlen*TM_BRTSCALE) / logLddyn; |
511 |
> |
((double)TM_BRTSCALE*histlen*logLddyn); |
512 |
|
ceiling = Tr + 1.; |
513 |
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trimmings = 0; /* clip to envelope */ |
514 |
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for (i = histlen; i--; ) { |
540 |
|
d -= (double)j; |
541 |
|
Ld = Ldmin*exp(logLddyn*((1.-d)*cumf[j]+d*cumf[j+1])); |
542 |
|
d = (Ld - Ldmin)/(Ldmax - Ldmin); |
543 |
< |
tms->lumap[i] = 256.*pow(d, 1./gamval); |
543 |
> |
tms->lumap[i] = TM_BRES*pow(d, 1./gamval); |
544 |
|
} |
545 |
|
free((MEM_PTR)histo); /* clean up and return */ |
546 |
|
free((MEM_PTR)cumf); |
547 |
|
returnOK; |
548 |
|
linearmap: /* linear tone-mapping */ |
549 |
|
if (tms->flags & TM_F_HCONTR) |
550 |
< |
d = htcontrs(Ldavg) / htcontrs(Lwavg); |
550 |
> |
d = htcontrs(sqrt(Ldmax*Ldmin)) / htcontrs(Lwavg); |
551 |
|
else |
552 |
< |
d = Ldavg / Lwavg; |
552 |
> |
d = Ldmax / tmLuminance(tms->hbrmax); |
553 |
|
return(tmFixedMapping(tms, tms->inpsf*d/Ldmax, gamval)); |
554 |
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} |
555 |
|
|
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 |
|
{ |
566 |
|
static const char funcName[] = "tmMapPixels"; |
567 |
< |
int32 li, pv; |
567 |
> |
TMbright lv; |
568 |
> |
TMAP_TYP li; |
569 |
> |
int pv; |
570 |
|
|
571 |
|
if (tms == NULL || tms->lumap == NULL) |
572 |
|
returnErr(TM_E_TMINVAL); |
573 |
|
if ((ps == NULL) | (ls == NULL) | (len < 0)) |
574 |
|
returnErr(TM_E_ILLEGAL); |
575 |
|
while (len--) { |
576 |
< |
if ((li = *ls++) < tms->mbrmin) { |
576 |
> |
if ((lv = *ls++) < tms->mbrmin) { |
577 |
|
li = 0; |
578 |
|
} else { |
579 |
< |
if (li > tms->mbrmax) |
580 |
< |
li = tms->mbrmax; |
581 |
< |
li = tms->lumap[li - tms->mbrmin]; |
579 |
> |
if (lv > tms->mbrmax) |
580 |
> |
lv = tms->mbrmax; |
581 |
> |
li = tms->lumap[lv - tms->mbrmin]; |
582 |
|
} |
583 |
< |
if (cs == TM_NOCHROM) |
584 |
< |
*ps++ = li>255 ? 255 : li; |
585 |
< |
else { |
583 |
> |
if (cs == TM_NOCHROM) { |
584 |
> |
#if !(TM_BRES & 0xff) |
585 |
> |
*ps++ = li>=TM_BRES ? 255 : li/(TM_BRES>>8); |
586 |
> |
#else |
587 |
> |
*ps++ = li>=TM_BRES ? 255 : (li<<8)/TM_BRES; |
588 |
> |
#endif |
589 |
> |
} else { |
590 |
|
pv = *cs++ * li / tms->cdiv[RED]; |
591 |
|
*ps++ = pv>255 ? 255 : pv; |
592 |
|
pv = *cs++ * li / tms->cdiv[GRN]; |
600 |
|
|
601 |
|
|
602 |
|
TMstruct * |
603 |
< |
tmDup( /* duplicate top tone mapping */ |
603 |
> |
tmDup( /* duplicate tone mapping */ |
604 |
|
TMstruct *tms |
605 |
|
) |
606 |
|
{ |
616 |
|
*tmnew = *tms; /* copy everything */ |
617 |
|
if (tmnew->histo != NULL) { /* duplicate histogram */ |
618 |
|
len = HISTI(tmnew->hbrmax) + 1 - HISTI(tmnew->hbrmin); |
619 |
< |
tmnew->histo = (int *)malloc(len*sizeof(int)); |
619 |
> |
tmnew->histo = (HIST_TYP *)malloc(len*sizeof(HIST_TYP)); |
620 |
|
if (tmnew->histo != NULL) |
621 |
< |
for (i = len; i--; ) |
622 |
< |
tmnew->histo[i] = tms->histo[i]; |
621 |
> |
memcpy((MEM_PTR)tmnew->histo, (MEM_PTR)tms->histo, |
622 |
> |
len*sizeof(HIST_TYP)); |
623 |
|
} |
624 |
|
if (tmnew->lumap != NULL) { /* duplicate luminance mapping */ |
625 |
|
len = tmnew->mbrmax-tmnew->mbrmin+1; |
626 |
< |
tmnew->lumap = (unsigned short *)malloc( |
621 |
< |
len*sizeof(unsigned short) ); |
626 |
> |
tmnew->lumap = (TMAP_TYP *)malloc(len*sizeof(TMAP_TYP)); |
627 |
|
if (tmnew->lumap != NULL) |
628 |
< |
for (i = len; i--; ) |
629 |
< |
tmnew->lumap[i] = tms->lumap[i]; |
628 |
> |
memcpy((MEM_PTR)tmnew->lumap, (MEM_PTR)tms->lumap, |
629 |
> |
len*sizeof(TMAP_TYP)); |
630 |
|
} |
631 |
|
/* clear package data */ |
632 |
|
for (i = tmNumPkgs; i--; ) |
658 |
|
|
659 |
|
/******************** Shared but Private library routines *********************/ |
660 |
|
|
661 |
< |
BYTE tmMesofact[BMESUPPER-BMESLOWER]; |
661 |
> |
uby8 tmMesofact[BMESUPPER-BMESLOWER]; |
662 |
|
|
663 |
|
void |
664 |
|
tmMkMesofact() /* build mesopic lookup factor table */ |
690 |
|
if (tms->mbrmin > tms->mbrmax) |
691 |
|
return 0; |
692 |
|
if (tms->lumap == NULL) |
693 |
< |
tms->lumap = (unsigned short *)malloc(sizeof(unsigned short)* |
693 |
> |
tms->lumap = (TMAP_TYP *)malloc(sizeof(TMAP_TYP)* |
694 |
|
(tms->mbrmax-tms->mbrmin+1)); |
695 |
|
return(tms->lumap != NULL); |
696 |
|
} |