18 |
|
|
19 |
|
struct tmStruct *tmTop = NULL; /* current tone mapping stack */ |
20 |
|
|
21 |
+ |
/* our list of conversion packages */ |
22 |
+ |
struct tmPackage *tmPkg[TM_MAXPKG]; |
23 |
+ |
int tmNumPkgs = 0; /* number of registered packages */ |
24 |
|
|
25 |
+ |
int tmLastError; /* last error incurred by library */ |
26 |
+ |
char *tmLastFunction; /* error-generating function name */ |
27 |
+ |
|
28 |
+ |
|
29 |
|
int |
30 |
|
tmErrorReturn(func, err) /* error return (with message) */ |
31 |
|
char *func; |
32 |
|
int err; |
33 |
|
{ |
34 |
+ |
tmLastFunction = func; |
35 |
+ |
tmLastError = err; |
36 |
|
if (tmTop != NULL && tmTop->flags & TM_F_NOSTDERR) |
37 |
|
return(err); |
38 |
|
fputs(func, stderr); |
71 |
|
tmnew->clf[GRN] = cmat[1][1]; |
72 |
|
tmnew->clf[BLU] = cmat[1][2]; |
73 |
|
} |
65 |
– |
tmnew->clfb[RED] = 256.*tmnew->clf[RED] + .5; |
66 |
– |
tmnew->clfb[GRN] = 256.*tmnew->clf[GRN] + .5; |
67 |
– |
tmnew->clfb[BLU] = 256.*tmnew->clf[BLU] + .5; |
68 |
– |
tmnew->clfb[EXP] = COLXS; |
74 |
|
/* set gamma value */ |
75 |
|
if (gamval < MINGAM) |
76 |
|
tmnew->mongam = DEFGAM; |
77 |
|
else |
78 |
|
tmnew->mongam = gamval; |
79 |
< |
for (i = TM_GAMTSZ; i--; ) |
80 |
< |
tmnew->gamb[i] = 256.*pow((i+.5)/TM_GAMTSZ, 1./tmnew->mongam); |
79 |
> |
/* set color divisors */ |
80 |
> |
for (i = 0; i < 3; i++) |
81 |
> |
tmnew->cdiv[i] = 256.*pow(tmnew->clf[i], 1./tmnew->mongam); |
82 |
> |
|
83 |
|
/* set input transform */ |
84 |
|
tmnew->inppri = tmnew->monpri; |
85 |
|
tmnew->cmat[0][0] = tmnew->cmat[1][1] = tmnew->cmat[2][2] = |
86 |
|
tmnew->inpsf = WHTEFFICACY; |
80 |
– |
tmnew->inpsfb = TM_BRTSCALE*log(tmnew->inpsf) + .5; |
87 |
|
tmnew->cmat[0][1] = tmnew->cmat[0][2] = tmnew->cmat[1][0] = |
88 |
|
tmnew->cmat[1][2] = tmnew->cmat[2][0] = tmnew->cmat[2][1] = 0.; |
83 |
– |
tmnew->flags &= ~TM_F_NEEDMAT; |
89 |
|
tmnew->brmin = tmnew->brmax = 0; |
90 |
|
tmnew->histo = NULL; |
91 |
|
tmnew->lumap = NULL; |
92 |
< |
tmnew->tmprev = NULL; |
93 |
< |
|
94 |
< |
tmnew->flags |= TM_F_INITED; |
95 |
< |
/* make it current */ |
92 |
> |
/* zero private data */ |
93 |
> |
for (i = TM_MAXPKG; i--; ) |
94 |
> |
tmnew->pd[i] = NULL; |
95 |
> |
/* make tmnew current */ |
96 |
|
tmnew->tmprev = tmTop; |
97 |
|
return(tmTop = tmnew); |
98 |
|
} |
115 |
|
returnOK; |
116 |
|
tmTop->inppri = pri; /* let's set it */ |
117 |
|
tmTop->inpsf = sf; |
113 |
– |
tmTop->inpsfb = TM_BRTSCALE*log(sf) + (sf>=1. ? .5 : -.5); |
118 |
|
|
119 |
|
if (tmTop->flags & TM_F_BW) { /* color doesn't matter */ |
120 |
|
tmTop->monpri = tmTop->inppri; /* eliminate xform */ |
121 |
|
if (tmTop->inppri == TM_XYZPRIM) { |
122 |
|
tmTop->clf[CIEX] = tmTop->clf[CIEZ] = 0.; |
123 |
|
tmTop->clf[CIEY] = 1.; |
120 |
– |
tmTop->clfb[CIEX] = tmTop->clfb[CIEZ] = 0; |
121 |
– |
tmTop->clfb[CIEY] = 255; |
124 |
|
} else { |
125 |
|
comprgb2xyzmat(tmTop->cmat, tmTop->monpri); |
126 |
|
tmTop->clf[RED] = tmTop->cmat[1][0]; |
144 |
|
for (i = 0; i < 3; i++) |
145 |
|
for (j = 0; j < 3; j++) |
146 |
|
tmTop->cmat[i][j] *= tmTop->inpsf; |
147 |
< |
if (tmTop->inppri != tmTop->monpri) |
148 |
< |
tmTop->flags |= TM_F_NEEDMAT; |
149 |
< |
else |
150 |
< |
tmTop->flags &= ~TM_F_NEEDMAT; |
147 |
> |
/* set color divisors */ |
148 |
> |
for (i = 0; i < 3; i++) |
149 |
> |
if (tmTop->clf[i] > .001) |
150 |
> |
tmTop->cdiv[i] = |
151 |
> |
256.*pow(tmTop->clf[i], 1./tmTop->mongam); |
152 |
> |
else |
153 |
> |
tmTop->cdiv[i] = 1; |
154 |
> |
/* notify packages */ |
155 |
> |
for (i = tmNumPkgs; i--; ) |
156 |
> |
if (tmTop->pd[i] != NULL && tmPkg[i]->NewSpace != NULL) |
157 |
> |
(*tmPkg[i]->NewSpace)(tmTop); |
158 |
|
returnOK; |
159 |
|
} |
160 |
|
|
164 |
|
{ |
165 |
|
if (tmTop == NULL || tmTop->histo == NULL) |
166 |
|
return; |
167 |
< |
free((char *)tmTop->histo); |
167 |
> |
free((MEM_PTR)tmTop->histo); |
168 |
|
tmTop->histo = NULL; |
169 |
|
} |
170 |
|
|
177 |
|
int len; |
178 |
|
{ |
179 |
|
static char funcName[] = "tmCvColors"; |
180 |
+ |
static COLOR csmall = {1e-6, 1e-6, 1e-6}; |
181 |
|
COLOR cmon; |
182 |
|
double lum, slum; |
183 |
|
register double d; |
188 |
|
if (ls == NULL | scan == NULL | len <= 0) |
189 |
|
returnErr(TM_E_ILLEGAL); |
190 |
|
for (i = len; i--; ) { |
191 |
< |
if (tmTop->flags & TM_F_NEEDMAT) /* get monitor RGB */ |
191 |
> |
if (tmNeedMatrix(tmTop)) /* get monitor RGB */ |
192 |
|
colortrans(cmon, tmTop->cmat, scan[i]); |
193 |
|
else { |
194 |
|
cmon[RED] = tmTop->inpsf*scan[i][RED]; |
200 |
|
tmTop->clf[GRN]*cmon[GRN] + |
201 |
|
tmTop->clf[BLU]*cmon[BLU] ; |
202 |
|
/* check range */ |
203 |
< |
if (clipgamut(cmon, lum, CGAMUT_LOWER, cblack, cwhite)) |
203 |
> |
if (clipgamut(cmon, lum, CGAMUT_LOWER, csmall, cwhite)) |
204 |
|
lum = tmTop->clf[RED]*cmon[RED] + |
205 |
|
tmTop->clf[GRN]*cmon[GRN] + |
206 |
|
tmTop->clf[BLU]*cmon[BLU] ; |
233 |
|
cmon[RED] = cmon[GRN] = cmon[BLU] = lum; |
234 |
|
} |
235 |
|
d = tmTop->clf[RED]*cmon[RED]/lum; |
236 |
< |
/* cs[3*i ] = d>.999 ? 255 : 256.*pow(d, 1./tmTop->mongam); */ |
237 |
< |
cs[3*i ] = d>.999 ? 255 : tmTop->gamb[(int)(d*TM_GAMTSZ)]; |
236 |
> |
cs[3*i ] = d>=.999 ? 255 : |
237 |
> |
(int)(256.*pow(d, 1./tmTop->mongam)); |
238 |
|
d = tmTop->clf[GRN]*cmon[GRN]/lum; |
239 |
< |
/* cs[3*i+1] = d>.999 ? 255 : 256.*pow(d, 1./tmTop->mongam); */ |
240 |
< |
cs[3*i+1] = d>.999 ? 255 : tmTop->gamb[(int)(d*TM_GAMTSZ)]; |
239 |
> |
cs[3*i+1] = d>=.999 ? 255 : |
240 |
> |
(int)(256.*pow(d, 1./tmTop->mongam)); |
241 |
|
d = tmTop->clf[BLU]*cmon[BLU]/lum; |
242 |
< |
/* cs[3*i+2] = d>.999 ? 255 : 256.*pow(d, 1./tmTop->mongam); */ |
243 |
< |
cs[3*i+2] = d>.999 ? 255 : tmTop->gamb[(int)(d*TM_GAMTSZ)]; |
242 |
> |
cs[3*i+2] = d>=.999 ? 255 : |
243 |
> |
(int)(256.*pow(d, 1./tmTop->mongam)); |
244 |
|
} |
245 |
|
returnOK; |
246 |
|
} |
289 |
|
if (oldlen) { /* copy and free old */ |
290 |
|
for (i = oldlen, j = i+oldorig-horig; i; ) |
291 |
|
newhist[--j] = tmTop->histo[--i]; |
292 |
< |
free((char *)tmTop->histo); |
292 |
> |
free((MEM_PTR)tmTop->histo); |
293 |
|
} |
294 |
|
tmTop->histo = newhist; |
295 |
|
if (tmTop->lumap != NULL) { /* invalid tone map */ |
296 |
< |
free((char *)tmTop->lumap); |
296 |
> |
free((MEM_PTR)tmTop->lumap); |
297 |
|
tmTop->lumap = NULL; |
298 |
|
} |
299 |
|
} |
430 |
|
} |
431 |
|
} |
432 |
|
if (!(tmTop->flags & TM_F_LINEAR)) { |
433 |
< |
free((char *)histo); |
434 |
< |
free((char *)cumf); |
433 |
> |
free((MEM_PTR)histo); |
434 |
> |
free((MEM_PTR)cumf); |
435 |
|
} |
436 |
|
returnOK; |
437 |
|
} |
445 |
|
int len; |
446 |
|
{ |
447 |
|
static char funcName[] = "tmMapPixels"; |
448 |
< |
int rdiv, gdiv, bdiv; |
439 |
< |
register int li, pv; |
448 |
> |
register int4 li, pv; |
449 |
|
|
450 |
|
if (tmTop == NULL || tmTop->lumap == NULL) |
451 |
|
returnErr(TM_E_TMINVAL); |
452 |
|
if (ps == NULL | ls == NULL | len <= 0) |
453 |
|
returnErr(TM_E_ILLEGAL); |
445 |
– |
rdiv = tmTop->gamb[((int4)TM_GAMTSZ*tmTop->clfb[RED])>>8]; |
446 |
– |
gdiv = tmTop->gamb[((int4)TM_GAMTSZ*tmTop->clfb[GRN])>>8]; |
447 |
– |
bdiv = tmTop->gamb[((int4)TM_GAMTSZ*tmTop->clfb[BLU])>>8]; |
454 |
|
while (len--) { |
455 |
|
if ((li = *ls++) < tmTop->brmin) |
456 |
|
li = tmTop->brmin; |
460 |
|
if (cs == TM_NOCHROM) |
461 |
|
*ps++ = li>255 ? 255 : li; |
462 |
|
else { |
463 |
< |
pv = *cs++ * li / rdiv; |
463 |
> |
pv = *cs++ * li / tmTop->cdiv[RED]; |
464 |
|
*ps++ = pv>255 ? 255 : pv; |
465 |
< |
pv = *cs++ * li / gdiv; |
465 |
> |
pv = *cs++ * li / tmTop->cdiv[GRN]; |
466 |
|
*ps++ = pv>255 ? 255 : pv; |
467 |
< |
pv = *cs++ * li / bdiv; |
467 |
> |
pv = *cs++ * li / tmTop->cdiv[BLU]; |
468 |
|
*ps++ = pv>255 ? 255 : pv; |
469 |
|
} |
470 |
|
} |
535 |
|
for (i = len; i--; ) |
536 |
|
tmnew->lumap[i] = tmTop->lumap[i]; |
537 |
|
} |
538 |
+ |
/* clear package data */ |
539 |
+ |
for (i = tmNumPkgs; i--; ) |
540 |
+ |
tmnew->pd[i] = NULL; |
541 |
|
tmnew->tmprev = tmTop; /* make copy current */ |
542 |
|
return(tmTop = tmnew); |
543 |
|
} |
549 |
|
{ |
550 |
|
static char funcName[] = "tmPush"; |
551 |
|
/* check validity */ |
552 |
< |
if (tms == NULL || !(tms->flags & TM_F_INITED)) |
552 |
> |
if (tms == NULL) |
553 |
|
returnErr(TM_E_ILLEGAL); |
554 |
|
if (tms == tmTop) /* check necessity */ |
555 |
|
returnOK; |
566 |
|
tmDone(tms) /* done with tone mapping -- destroy it */ |
567 |
|
register struct tmStruct *tms; |
568 |
|
{ |
569 |
+ |
register int i; |
570 |
|
/* NULL arg. is equiv. to tmTop */ |
571 |
|
if (tms == NULL && (tms = tmTop) == NULL) |
572 |
|
return; |
574 |
|
(void)tmPull(tms); |
575 |
|
/* free tables */ |
576 |
|
if (tms->histo != NULL) |
577 |
< |
free((char *)tms->histo); |
577 |
> |
free((MEM_PTR)tms->histo); |
578 |
|
if (tms->lumap != NULL) |
579 |
< |
free((char *)tms->lumap); |
580 |
< |
tms->flags = 0; |
581 |
< |
free((char *)tms); /* free basic structure */ |
579 |
> |
free((MEM_PTR)tms->lumap); |
580 |
> |
/* free private data */ |
581 |
> |
for (i = tmNumPkgs; i--; ) |
582 |
> |
if (tms->pd[i] != NULL) |
583 |
> |
(*tmPkg[i]->Free)(tms->pd[i]); |
584 |
> |
free((MEM_PTR)tms); /* free basic structure */ |
585 |
|
} |