| 744 |
|
const SDCDst * |
| 745 |
|
SDgetTreCDist(const FVECT inVec, SDComponent *sdc) |
| 746 |
|
{ |
| 747 |
+ |
unsigned long cacheLeft = SDmaxCache; |
| 748 |
|
const SDTre *sdt; |
| 749 |
|
double inCoord[2]; |
| 750 |
|
int i; |
| 751 |
|
int mode; |
| 752 |
< |
SDTreCDst *cd, *cdlast; |
| 752 |
> |
SDTreCDst *cd, *cdlast, *cdlimit; |
| 753 |
|
/* check arguments */ |
| 754 |
|
if ((inVec == NULL) | (sdc == NULL) || |
| 755 |
|
(sdt = (SDTre *)sdc->dist) == NULL) |
| 789 |
|
/* quantize to avoid f.p. errors */ |
| 790 |
|
for (i = sdt->stc[tt_Y]->ndim - 2; i--; ) |
| 791 |
|
inCoord[i] = floor(inCoord[i]/quantum)*quantum + .5*quantum; |
| 792 |
< |
cdlast = NULL; /* check for direction in cache list */ |
| 792 |
> |
cdlast = cdlimit = NULL; /* check for direction in cache list */ |
| 793 |
> |
/* PLACE MUTEX LOCK HERE FOR THREAD-SAFE */ |
| 794 |
|
for (cd = (SDTreCDst *)sdc->cdList; cd != NULL; |
| 795 |
|
cdlast = cd, cd = cd->next) { |
| 796 |
+ |
if (cacheLeft) { /* check cache size limit */ |
| 797 |
+ |
long csiz = sizeof(SDTreCDst) + |
| 798 |
+ |
sizeof(cd->carr[0])*cd->calen; |
| 799 |
+ |
if (cacheLeft > csiz) |
| 800 |
+ |
cacheLeft -= csiz; |
| 801 |
+ |
else { |
| 802 |
+ |
cdlimit = cdlast; |
| 803 |
+ |
cacheLeft = 0; |
| 804 |
+ |
} |
| 805 |
+ |
} |
| 806 |
|
if (cd->sidef != mode) |
| 807 |
|
continue; |
| 808 |
|
for (i = sdt->stc[tt_Y]->ndim - 2; i--; ) |
| 812 |
|
if (i < 0) |
| 813 |
|
break; /* means we have a match */ |
| 814 |
|
} |
| 815 |
< |
if (cd == NULL) /* need to create new entry? */ |
| 815 |
> |
if (cd == NULL) { /* need to create new entry? */ |
| 816 |
> |
if (cdlimit != NULL) /* exceeded cache size limit? */ |
| 817 |
> |
while ((cd = cdlimit->next) != NULL) { |
| 818 |
> |
cdlimit->next = cd->next; |
| 819 |
> |
free(cd); |
| 820 |
> |
} |
| 821 |
|
cdlast = cd = make_cdist(sdt, inCoord, mode != sdt->sidef); |
| 822 |
+ |
} |
| 823 |
|
if (cdlast != NULL) { /* move entry to head of cache list */ |
| 824 |
|
cdlast->next = cd->next; |
| 825 |
|
cd->next = (SDTreCDst *)sdc->cdList; |
| 826 |
|
sdc->cdList = (SDCDst *)cd; |
| 827 |
|
} |
| 828 |
+ |
/* END MUTEX LOCK */ |
| 829 |
|
return (SDCDst *)cd; /* ready to go */ |
| 830 |
|
} |
| 831 |
|
|
| 1193 |
|
static double |
| 1194 |
|
subtract_min_Y(SDNode *st) |
| 1195 |
|
{ |
| 1196 |
< |
float vmin; |
| 1196 |
> |
const float vmaxmin = 1.5/M_PI; |
| 1197 |
> |
float vmin; |
| 1198 |
|
/* be sure to skip unused portion */ |
| 1199 |
|
if (st->ndim == 3) { |
| 1200 |
|
int n; |
| 1201 |
< |
vmin = 1./M_PI; |
| 1201 |
> |
vmin = vmaxmin; |
| 1202 |
|
if (st->log2GR < 0) { |
| 1203 |
|
for (n = 0; n < 8; n += 2) { |
| 1204 |
|
float v = SDgetTreMin(st->u.t[n]); |
| 1214 |
|
} else /* anisotropic covers entire tree */ |
| 1215 |
|
vmin = SDgetTreMin(st); |
| 1216 |
|
|
| 1217 |
< |
if (vmin <= .01/M_PI) |
| 1217 |
> |
if ((vmin >= vmaxmin) | (vmin <= .01/M_PI)) |
| 1218 |
|
return .0; /* not worth bothering about */ |
| 1219 |
|
|
| 1220 |
|
SDsubtractTreVal(st, vmin); |
| 1336 |
|
SDtraverseTre(stc[tt_Y], NULL, 0, get_min_RGB, &my_min); |
| 1337 |
|
/* convert to C_COLOR */ |
| 1338 |
|
ymin = c_fromSharpRGB(my_min.rgb, cs); |
| 1339 |
< |
if (ymin <= .01/M_PI) /* not worth bothering about? */ |
| 1340 |
< |
return .0; |
| 1339 |
> |
if ((ymin >= .5*FHUGE) | (ymin <= .01/M_PI)) |
| 1340 |
> |
return .0; /* close to zero or no tree */ |
| 1341 |
|
/* adjust u' & v' trees */ |
| 1342 |
|
SDtraverseTre(stc[tt_u], NULL, 0, adjust_utree, &my_min); |
| 1343 |
|
SDtraverseTre(stc[tt_v], NULL, 0, adjust_vtree, &my_min); |
| 1378 |
|
dv->cieY = subtract_min_Y(sdt->stc[tt_Y]); |
| 1379 |
|
} |
| 1380 |
|
df->maxHemi -= dv->cieY; /* adjust maximum hemispherical */ |
| 1381 |
< |
/* make sure everything is set */ |
| 1382 |
< |
c_ccvt(&dv->spec, C_CSXY+C_CSSPEC); |
| 1381 |
> |
|
| 1382 |
> |
c_ccvt(&dv->spec, C_CSXY); /* make sure (x,y) is set */ |
| 1383 |
|
} |
| 1384 |
|
|
| 1385 |
|
/* Load a variable-resolution BSDF tree from an open XML file */ |
| 1430 |
|
/* separate diffuse components */ |
| 1431 |
|
extract_diffuse(&sd->rLambFront, sd->rf); |
| 1432 |
|
extract_diffuse(&sd->rLambBack, sd->rb); |
| 1433 |
< |
if (sd->tf != NULL) |
| 1434 |
< |
extract_diffuse(&sd->tLamb, sd->tf); |
| 1415 |
< |
if (sd->tb != NULL) |
| 1416 |
< |
extract_diffuse(&sd->tLamb, sd->tb); |
| 1433 |
> |
extract_diffuse(&sd->tLambFront, sd->tf); |
| 1434 |
> |
extract_diffuse(&sd->tLambBack, sd->tb); |
| 1435 |
|
/* return success */ |
| 1436 |
|
return SDEnone; |
| 1437 |
|
} |
| 1438 |
|
|
| 1439 |
|
/* Variable resolution BSDF methods */ |
| 1440 |
< |
SDFunc SDhandleTre = { |
| 1440 |
> |
const SDFunc SDhandleTre = { |
| 1441 |
|
&SDgetTreBSDF, |
| 1442 |
|
&SDqueryTreProjSA, |
| 1443 |
|
&SDgetTreCDist, |
