11 |
|
* |
12 |
|
*/ |
13 |
|
|
14 |
+ |
#define _USE_MATH_DEFINES |
15 |
|
#include "rtio.h" |
16 |
|
#include <stdlib.h> |
17 |
|
#include <math.h> |
87 |
|
return (a <= 1e-6) & (a >= -1e-6); |
88 |
|
} |
89 |
|
|
89 |
– |
/* Returns the name of the given tag */ |
90 |
– |
#ifdef ezxml_name |
91 |
– |
#undef ezxml_name |
92 |
– |
static char * |
93 |
– |
ezxml_name(ezxml_t xml) |
94 |
– |
{ |
95 |
– |
if (xml == NULL) |
96 |
– |
return NULL; |
97 |
– |
return xml->name; |
98 |
– |
} |
99 |
– |
#endif |
100 |
– |
|
90 |
|
/* Returns the given tag's character content or empty string if none */ |
91 |
|
#ifdef ezxml_txt |
92 |
|
#undef ezxml_txt |
178 |
|
{ |
179 |
|
ANGLE_BASIS *ab = (ANGLE_BASIS *)p; |
180 |
|
int li, ndx; |
181 |
< |
double pol, azi, d; |
181 |
> |
double pol, azi; |
182 |
|
|
183 |
|
if (v == NULL) |
184 |
|
return -1; |
218 |
|
if (li == last_li) /* cached latitude? */ |
219 |
|
return last_ohm; |
220 |
|
last_li = li; |
232 |
– |
theta1 = M_PI/180. * ab->lat[li+1].tmin; |
233 |
– |
if (ab->lat[li].nphis == 1) /* special case */ |
234 |
– |
return last_ohm = M_PI*(1. - sq(cos(theta1))); |
221 |
|
theta = M_PI/180. * ab->lat[li].tmin; |
222 |
+ |
theta1 = M_PI/180. * ab->lat[li+1].tmin; |
223 |
|
return last_ohm = M_PI*(sq(cos(theta)) - sq(cos(theta1))) / |
224 |
|
(double)ab->lat[li].nphis; |
225 |
|
} |
333 |
|
ezxml_child(ezxml_child(wbb, |
334 |
|
"ThetaBounds"), "UpperTheta"))); |
335 |
|
if (!i) |
336 |
< |
abase_list[nabases].lat[i].tmin = |
350 |
< |
-abase_list[nabases].lat[i+1].tmin; |
336 |
> |
abase_list[nabases].lat[0].tmin = 0; |
337 |
|
else if (!fequal(atof(ezxml_txt(ezxml_child(ezxml_child(wbb, |
338 |
|
"ThetaBounds"), "LowerTheta"))), |
339 |
|
abase_list[nabases].lat[i].tmin)) { |
404 |
|
int i; |
405 |
|
/* allocate BSDF component */ |
406 |
|
sdata = ezxml_txt(ezxml_child(wdb, "WavelengthDataDirection")); |
407 |
+ |
if (!sdata) |
408 |
+ |
return RC_FAIL; |
409 |
|
/* |
410 |
|
* Remember that front and back are reversed from WINDOW 6 orientations |
411 |
|
* Favor their "Front" (incoming light) since that's more often valid |
495 |
|
df->comp[0].dist = dp; |
496 |
|
df->comp[0].func = &SDhandleMtx; |
497 |
|
/* read BSDF data */ |
498 |
< |
sdata = ezxml_txt(ezxml_child(wdb,"ScatteringData")); |
498 |
> |
sdata = ezxml_txt(ezxml_child(wdb, "ScatteringData")); |
499 |
|
if (!sdata || !*sdata) { |
500 |
|
sprintf(SDerrorDetail, "Missing BSDF ScatteringData in '%s'", |
501 |
|
sd->name); |
509 |
|
sd->name); |
510 |
|
return RC_FORMERR; |
511 |
|
} |
512 |
< |
while (*sdnext && isspace(*sdnext)) |
512 |
> |
while (isspace(*sdnext)) |
513 |
|
sdnext++; |
514 |
|
if (*sdnext == ',') sdnext++; |
515 |
|
if (rowinc) { |
516 |
|
int r = i/dp->nout; |
517 |
< |
int c = i - c*dp->nout; |
517 |
> |
int c = i - r*dp->nout; |
518 |
|
mBSDF_value(dp,r,c) = atof(sdata); |
519 |
|
} else |
520 |
|
dp->bsdf[i] = atof(sdata); |
534 |
|
for (i = n; --i; ) |
535 |
|
if (sm->bsdf[i] < minv) |
536 |
|
minv = sm->bsdf[i]; |
537 |
+ |
|
538 |
+ |
if (minv <= FTINY) |
539 |
+ |
return .0; |
540 |
+ |
|
541 |
|
for (i = n; i--; ) |
542 |
|
sm->bsdf[i] -= minv; |
543 |
|
|
563 |
|
c_cmix(&dv->spec, dv->cieY, &dv->spec, ymin, &df->comp[n].cspec[0]); |
564 |
|
dv->cieY += ymin; |
565 |
|
} |
566 |
< |
df->maxHemi -= dv->cieY; /* adjust minimum hemispherical */ |
566 |
> |
df->maxHemi -= dv->cieY; /* adjust maximum hemispherical */ |
567 |
|
/* make sure everything is set */ |
568 |
|
c_ccvt(&dv->spec, C_CSXY+C_CSSPEC); |
569 |
|
} |
572 |
|
SDError |
573 |
|
SDloadMtx(SDData *sd, ezxml_t wtl) |
574 |
|
{ |
575 |
< |
ezxml_t wld, wdb; |
576 |
< |
int rowIn; |
577 |
< |
struct BSDF_data *dp; |
578 |
< |
char *txt; |
579 |
< |
int rval; |
588 |
< |
|
575 |
> |
ezxml_t wld, wdb; |
576 |
> |
int rowIn; |
577 |
> |
char *txt; |
578 |
> |
int rval; |
579 |
> |
/* basic checks and data ordering */ |
580 |
|
txt = ezxml_txt(ezxml_child(ezxml_child(wtl, |
581 |
|
"DataDefinition"), "IncidentDataStructure")); |
582 |
|
if (txt == NULL || !*txt) { |
595 |
|
sd->name); |
596 |
|
return SDEsupport; |
597 |
|
} |
598 |
< |
/* get angle basis */ |
599 |
< |
rval = load_angle_basis(ezxml_child(ezxml_child(wtl, |
600 |
< |
"DataDefinition"), "AngleBasis")); |
601 |
< |
if (rval < 0) |
602 |
< |
return convert_errcode(rval); |
603 |
< |
/* load BSDF components */ |
598 |
> |
/* get angle bases */ |
599 |
> |
for (wld = ezxml_child(ezxml_child(wtl, "DataDefinition"), "AngleBasis"); |
600 |
> |
wld != NULL; wld = wld->next) { |
601 |
> |
rval = load_angle_basis(wld); |
602 |
> |
if (rval < 0) |
603 |
> |
return convert_errcode(rval); |
604 |
> |
} |
605 |
> |
/* load BSDF components */ |
606 |
|
for (wld = ezxml_child(wtl, "WavelengthData"); |
607 |
|
wld != NULL; wld = wld->next) { |
608 |
|
if (strcasecmp(ezxml_txt(ezxml_child(wld,"Wavelength")), |
613 |
|
if ((rval = load_bsdf_data(sd, wdb, rowIn)) < 0) |
614 |
|
return convert_errcode(rval); |
615 |
|
} |
616 |
< |
/* separate diffuse components */ |
616 |
> |
/* separate diffuse components */ |
617 |
|
extract_diffuse(&sd->rLambFront, sd->rf); |
618 |
|
extract_diffuse(&sd->rLambBack, sd->rb); |
619 |
|
extract_diffuse(&sd->tLamb, sd->tf); |
620 |
< |
/* return success */ |
620 |
> |
/* return success */ |
621 |
|
return SDEnone; |
622 |
|
} |
623 |
|
|
675 |
|
psa[0] = out_psa; |
676 |
|
break; |
677 |
|
case SDqueryMin+SDqueryMax: |
678 |
< |
if (inc_psa > psa[0]) |
678 |
> |
if (inc_psa > psa[1]) |
679 |
|
psa[1] = inc_psa; |
680 |
< |
if (out_psa > psa[0]) |
680 |
> |
if (out_psa > psa[1]) |
681 |
|
psa[1] = out_psa; |
682 |
|
/* fall through */ |
690 |
– |
case SDqueryMin: |
683 |
|
case SDqueryVal: |
684 |
|
if (qflags == SDqueryVal) |
685 |
|
psa[0] = M_PI; |
686 |
+ |
/* fall through */ |
687 |
+ |
case SDqueryMin: |
688 |
|
if ((inc_psa > 0) & (inc_psa < psa[0])) |
689 |
|
psa[0] = inc_psa; |
690 |
|
if ((out_psa > 0) & (out_psa < psa[0])) |
755 |
|
reverse = 1; |
756 |
|
} |
757 |
|
cdlast = NULL; /* check for it in cache list */ |
758 |
< |
for (cd = (SDMatCDst *)sdc->cdList; |
759 |
< |
cd != NULL; cd = (SDMatCDst *)cd->next) { |
758 |
> |
for (cd = (SDMatCDst *)sdc->cdList; cd != NULL; |
759 |
> |
cdlast = cd, cd = cd->next) |
760 |
|
if (cd->indx == myCD.indx && (cd->calen == myCD.calen) & |
761 |
|
(cd->ob_priv == myCD.ob_priv) & |
762 |
|
(cd->ob_vec == myCD.ob_vec)) |
763 |
|
break; |
770 |
– |
cdlast = cd; |
771 |
– |
} |
764 |
|
if (cd == NULL) { /* need to allocate new entry */ |
765 |
|
cd = (SDMatCDst *)malloc(sizeof(SDMatCDst) + |
766 |
< |
myCD.calen*sizeof(myCD.carr[0])); |
766 |
> |
sizeof(myCD.carr[0])*myCD.calen); |
767 |
|
if (cd == NULL) |
768 |
|
return NULL; |
769 |
|
*cd = myCD; /* compute cumulative distribution */ |
775 |
|
} |
776 |
|
if (cdlast != NULL) { /* move entry to head of cache list */ |
777 |
|
cdlast->next = cd->next; |
778 |
< |
cd->next = sdc->cdList; |
778 |
> |
cd->next = (SDMatCDst *)sdc->cdList; |
779 |
|
sdc->cdList = (SDCDst *)cd; |
780 |
|
} |
781 |
|
return (SDCDst *)cd; /* ready to go */ |
795 |
|
/* binary search to find index */ |
796 |
|
ilower = 0; iupper = mcd->calen; |
797 |
|
while ((i = (iupper + ilower) >> 1) != ilower) |
798 |
< |
if ((long)target >= (long)mcd->carr[i]) |
798 |
> |
if (target >= mcd->carr[i]) |
799 |
|
ilower = i; |
800 |
|
else |
801 |
|
iupper = i; |