| 45 |
|
SDError |
| 46 |
|
SDreportEnglish(SDError ec, FILE *fp) |
| 47 |
|
{ |
| 48 |
– |
if (fp == NULL) |
| 49 |
– |
return ec; |
| 48 |
|
if (!ec) |
| 49 |
|
return SDEnone; |
| 50 |
+ |
if ((ec < SDEnone) | (ec > SDEunknown)) { |
| 51 |
+ |
SDerrorDetail[0] = '\0'; |
| 52 |
+ |
ec = SDEunknown; |
| 53 |
+ |
} |
| 54 |
+ |
if (fp == NULL) |
| 55 |
+ |
return ec; |
| 56 |
|
fputs(SDerrorEnglish[ec], fp); |
| 57 |
|
if (SDerrorDetail[0]) { |
| 58 |
|
fputs(": ", fp); |
| 81 |
|
|
| 82 |
|
/* Load geometric dimensions and description (if any) */ |
| 83 |
|
static SDError |
| 84 |
< |
SDloadGeometry(SDData *dp, ezxml_t wdb) |
| 84 |
> |
SDloadGeometry(SDData *sd, ezxml_t wdb) |
| 85 |
|
{ |
| 86 |
|
ezxml_t geom; |
| 87 |
|
double cfact; |
| 88 |
|
const char *fmt, *mgfstr; |
| 89 |
|
|
| 90 |
< |
sprintf(SDerrorDetail, "Negative size in \"%s\"", dp->name); |
| 91 |
< |
dp->dim[0] = dp->dim[1] = dp->dim[2] = .0; |
| 90 |
> |
if (wdb == NULL) /* no geometry section? */ |
| 91 |
> |
return SDEnone; |
| 92 |
> |
sd->dim[0] = sd->dim[1] = sd->dim[2] = .0; |
| 93 |
|
if ((geom = ezxml_child(wdb, "Width")) != NULL) |
| 94 |
< |
dp->dim[0] = atof(ezxml_txt(geom)) * |
| 94 |
> |
sd->dim[0] = atof(ezxml_txt(geom)) * |
| 95 |
|
to_meters(ezxml_attr(geom, "unit")); |
| 96 |
|
if ((geom = ezxml_child(wdb, "Height")) != NULL) |
| 97 |
< |
dp->dim[1] = atof(ezxml_txt(geom)) * |
| 97 |
> |
sd->dim[1] = atof(ezxml_txt(geom)) * |
| 98 |
|
to_meters(ezxml_attr(geom, "unit")); |
| 99 |
|
if ((geom = ezxml_child(wdb, "Thickness")) != NULL) |
| 100 |
< |
dp->dim[2] = atof(ezxml_txt(geom)) * |
| 100 |
> |
sd->dim[2] = atof(ezxml_txt(geom)) * |
| 101 |
|
to_meters(ezxml_attr(geom, "unit")); |
| 102 |
< |
if ((dp->dim[0] < .0) | (dp->dim[1] < .0) | (dp->dim[2] < .0)) |
| 102 |
> |
if ((sd->dim[0] < .0) | (sd->dim[1] < .0) | (sd->dim[2] < .0)) { |
| 103 |
> |
sprintf(SDerrorDetail, "Negative size in \"%s\"", sd->name); |
| 104 |
|
return SDEdata; |
| 105 |
+ |
} |
| 106 |
|
if ((geom = ezxml_child(wdb, "Geometry")) == NULL || |
| 107 |
|
(mgfstr = ezxml_txt(geom)) == NULL) |
| 108 |
|
return SDEnone; |
| 110 |
|
strcasecmp(fmt, "MGF")) { |
| 111 |
|
sprintf(SDerrorDetail, |
| 112 |
|
"Unrecognized geometry format '%s' in \"%s\"", |
| 113 |
< |
fmt, dp->name); |
| 113 |
> |
fmt, sd->name); |
| 114 |
|
return SDEsupport; |
| 115 |
|
} |
| 116 |
|
cfact = to_meters(ezxml_attr(geom, "unit")); |
| 117 |
< |
dp->mgf = (char *)malloc(strlen(mgfstr)+32); |
| 118 |
< |
if (dp->mgf == NULL) { |
| 117 |
> |
sd->mgf = (char *)malloc(strlen(mgfstr)+32); |
| 118 |
> |
if (sd->mgf == NULL) { |
| 119 |
|
strcpy(SDerrorDetail, "Out of memory in SDloadGeometry"); |
| 120 |
|
return SDEmemory; |
| 121 |
|
} |
| 122 |
|
if (cfact < 0.99 || cfact > 1.01) |
| 123 |
< |
sprintf(dp->mgf, "xf -s %.5f\n%s\nxf\n", cfact, mgfstr); |
| 123 |
> |
sprintf(sd->mgf, "xf -s %.5f\n%s\nxf\n", cfact, mgfstr); |
| 124 |
|
else |
| 125 |
< |
strcpy(dp->mgf, mgfstr); |
| 125 |
> |
strcpy(sd->mgf, mgfstr); |
| 126 |
|
return SDEnone; |
| 127 |
|
} |
| 128 |
|
|
| 122 |
– |
|
| 129 |
|
/* Load a BSDF struct from the given file (free first and keep name) */ |
| 130 |
|
SDError |
| 131 |
|
SDloadFile(SDData *sd, const char *fname) |
| 132 |
|
{ |
| 133 |
|
SDError lastErr; |
| 134 |
< |
ezxml_t fl; |
| 134 |
> |
ezxml_t fl, wtl; |
| 135 |
|
|
| 136 |
|
if ((sd == NULL) | (fname == NULL || !*fname)) |
| 137 |
|
return SDEargument; |
| 148 |
|
ezxml_free(fl); |
| 149 |
|
return SDEformat; |
| 150 |
|
} |
| 151 |
+ |
if (strcmp(ezxml_name(fl), "WindowElement")) { |
| 152 |
+ |
sprintf(SDerrorDetail, |
| 153 |
+ |
"BSDF \"%s\": top level node not 'WindowElement'", |
| 154 |
+ |
sd->name); |
| 155 |
+ |
ezxml_free(fl); |
| 156 |
+ |
return SDEformat; |
| 157 |
+ |
} |
| 158 |
+ |
wtl = ezxml_child(ezxml_child(fl, "Optical"), "Layer"); |
| 159 |
+ |
if (wtl == NULL) { |
| 160 |
+ |
sprintf(SDerrorDetail, "BSDF \"%s\": no optical layer'", |
| 161 |
+ |
sd->name); |
| 162 |
+ |
ezxml_free(fl); |
| 163 |
+ |
return SDEformat; |
| 164 |
+ |
} |
| 165 |
|
/* load geometry if present */ |
| 166 |
< |
if ((lastErr = SDloadGeometry(sd, fl))) |
| 166 |
> |
lastErr = SDloadGeometry(sd, ezxml_child(wtl, "Material")); |
| 167 |
> |
if (lastErr) |
| 168 |
|
return lastErr; |
| 169 |
|
/* try loading variable resolution data */ |
| 170 |
< |
lastErr = SDloadTre(sd, fl); |
| 170 |
> |
lastErr = SDloadTre(sd, wtl); |
| 171 |
|
/* check our result */ |
| 172 |
|
switch (lastErr) { |
| 173 |
|
case SDEformat: |
| 174 |
|
case SDEdata: |
| 175 |
|
case SDEsupport: /* possibly we just tried the wrong format */ |
| 176 |
< |
lastErr = SDloadMtx(sd, fl); |
| 176 |
> |
lastErr = SDloadMtx(sd, wtl); |
| 177 |
|
break; |
| 178 |
|
default: /* variable res. OK else serious error */ |
| 179 |
|
break; |
| 180 |
|
} |
| 181 |
|
/* done with XML file */ |
| 182 |
|
ezxml_free(fl); |
| 183 |
< |
/* return success or failure */ |
| 184 |
< |
return lastErr; |
| 183 |
> |
|
| 184 |
> |
if (lastErr) { /* was there a load error? */ |
| 185 |
> |
SDfreeBSDF(sd); |
| 186 |
> |
return lastErr; |
| 187 |
> |
} |
| 188 |
> |
/* remove any insignificant components */ |
| 189 |
> |
if (sd->rf != NULL && sd->rf->maxHemi <= .001) { |
| 190 |
> |
SDfreeSpectralDF(sd->rf); sd->rf = NULL; |
| 191 |
> |
} |
| 192 |
> |
if (sd->rb != NULL && sd->rb->maxHemi <= .001) { |
| 193 |
> |
SDfreeSpectralDF(sd->rb); sd->rb = NULL; |
| 194 |
> |
} |
| 195 |
> |
if (sd->tf != NULL && sd->tf->maxHemi <= .001) { |
| 196 |
> |
SDfreeSpectralDF(sd->tf); sd->tf = NULL; |
| 197 |
> |
} |
| 198 |
> |
/* return success */ |
| 199 |
> |
return SDEnone; |
| 200 |
|
} |
| 201 |
|
|
| 202 |
|
/* Allocate new spectral distribution function */ |
| 255 |
|
|
| 256 |
|
/* Shorten file path to useable BSDF name, removing suffix */ |
| 257 |
|
void |
| 258 |
< |
SDclipName(char res[SDnameLn], const char *fname) |
| 258 |
> |
SDclipName(char *res, const char *fname) |
| 259 |
|
{ |
| 260 |
|
const char *cp, *dot = NULL; |
| 261 |
|
|
| 273 |
|
|
| 274 |
|
/* Initialize an unused BSDF struct (simply clears to zeroes) */ |
| 275 |
|
void |
| 276 |
< |
SDclearBSDF(SDData *sd) |
| 276 |
> |
SDclearBSDF(SDData *sd, const char *fname) |
| 277 |
|
{ |
| 278 |
< |
if (sd != NULL) |
| 279 |
< |
memset(sd, 0, sizeof(SDData)); |
| 278 |
> |
if (sd == NULL) |
| 279 |
> |
return; |
| 280 |
> |
memset(sd, 0, sizeof(SDData)); |
| 281 |
> |
if (fname == NULL) |
| 282 |
> |
return; |
| 283 |
> |
SDclipName(sd->name, fname); |
| 284 |
|
} |
| 285 |
|
|
| 286 |
|
/* Free data associated with BSDF struct */ |
| 306 |
|
sd->tf = NULL; |
| 307 |
|
} |
| 308 |
|
sd->rLambFront.cieY = .0; |
| 309 |
< |
sd->rLambFront.spec.clock = 0; |
| 309 |
> |
sd->rLambFront.spec.flags = 0; |
| 310 |
|
sd->rLambBack.cieY = .0; |
| 311 |
< |
sd->rLambBack.spec.clock = 0; |
| 311 |
> |
sd->rLambBack.spec.flags = 0; |
| 312 |
|
sd->tLamb.cieY = .0; |
| 313 |
< |
sd->tLamb.spec.clock = 0; |
| 313 |
> |
sd->tLamb.spec.flags = 0; |
| 314 |
|
} |
| 315 |
|
|
| 316 |
|
/* Find writeable BSDF by name, or allocate new cache entry if absent */ |
| 338 |
|
sdl->next = SDcacheList; |
| 339 |
|
SDcacheList = sdl; |
| 340 |
|
|
| 341 |
< |
sdl->refcnt++; |
| 341 |
> |
sdl->refcnt = 1; |
| 342 |
|
return &sdl->bsdf; |
| 343 |
|
} |
| 344 |
|
|
| 382 |
|
for (sdl = SDcacheList; sdl != NULL; sdl = (sdLast=sdl)->next) |
| 383 |
|
if (&sdl->bsdf == sd) |
| 384 |
|
break; |
| 385 |
< |
if (sdl == NULL || --sdl->refcnt) |
| 385 |
> |
if (sdl == NULL || (sdl->refcnt -= (sdl->refcnt > 0))) |
| 386 |
|
return; /* missing or still in use */ |
| 387 |
|
/* keep unreferenced data? */ |
| 388 |
|
if (SDisLoaded(sd) && SDretainSet) { |
| 459 |
|
bitmask_t ndx, coord[MS_MAXDIM]; |
| 460 |
|
|
| 461 |
|
while (n > MS_MAXDIM) /* punt for higher dimensions */ |
| 462 |
< |
t[--n] = drand48(); |
| 462 |
> |
t[--n] = rand()*(1./(RAND_MAX+.5)); |
| 463 |
|
nBits = (8*sizeof(bitmask_t) - 1) / n; |
| 464 |
|
ndx = randX * (double)((bitmask_t)1 << (nBits*n)); |
| 465 |
|
/* get coordinate on Hilbert curve */ |
| 467 |
|
/* convert back to [0,1) range */ |
| 468 |
|
scale = 1. / (double)((bitmask_t)1 << nBits); |
| 469 |
|
while (n--) |
| 470 |
< |
t[n] = scale * ((double)coord[n] + drand48()); |
| 470 |
> |
t[n] = scale * ((double)coord[n] + rand()*(1./(RAND_MAX+.5))); |
| 471 |
|
} |
| 472 |
|
|
| 473 |
|
#undef MS_MAXDIM |
| 488 |
|
|
| 489 |
|
/* Query projected solid angle coverage for non-diffuse BSDF direction */ |
| 490 |
|
SDError |
| 491 |
< |
SDsizeBSDF(double *projSA, const FVECT vec, int qflags, const SDData *sd) |
| 491 |
> |
SDsizeBSDF(double *projSA, const FVECT v1, const RREAL *v2, |
| 492 |
> |
int qflags, const SDData *sd) |
| 493 |
|
{ |
| 494 |
|
SDSpectralDF *rdf; |
| 495 |
|
SDError ec; |
| 496 |
|
int i; |
| 497 |
|
/* check arguments */ |
| 498 |
< |
if ((projSA == NULL) | (vec == NULL) | (sd == NULL)) |
| 498 |
> |
if ((projSA == NULL) | (v1 == NULL)) |
| 499 |
|
return SDEargument; |
| 500 |
|
/* initialize extrema */ |
| 501 |
< |
switch (qflags & SDqueryMin+SDqueryMax) { |
| 501 |
> |
switch (qflags) { |
| 502 |
|
case SDqueryMax: |
| 503 |
|
projSA[0] = .0; |
| 504 |
|
break; |
| 511 |
|
case 0: |
| 512 |
|
return SDEargument; |
| 513 |
|
} |
| 514 |
< |
if (vec[2] > .0) /* front surface query? */ |
| 514 |
> |
if (v1[2] > .0) /* front surface query? */ |
| 515 |
|
rdf = sd->rf; |
| 516 |
|
else |
| 517 |
|
rdf = sd->rb; |
| 518 |
|
ec = SDEdata; /* run through components */ |
| 519 |
|
for (i = (rdf==NULL) ? 0 : rdf->ncomp; i--; ) { |
| 520 |
< |
ec = (*rdf->comp[i].func->queryProjSA)(projSA, vec, qflags, |
| 521 |
< |
rdf->comp[i].dist); |
| 520 |
> |
ec = (*rdf->comp[i].func->queryProjSA)(projSA, v1, v2, |
| 521 |
> |
qflags, rdf->comp[i].dist); |
| 522 |
|
if (ec) |
| 523 |
|
return ec; |
| 524 |
|
} |
| 525 |
|
for (i = (sd->tf==NULL) ? 0 : sd->tf->ncomp; i--; ) { |
| 526 |
< |
ec = (*sd->tf->comp[i].func->queryProjSA)(projSA, vec, qflags, |
| 527 |
< |
sd->tf->comp[i].dist); |
| 526 |
> |
ec = (*sd->tf->comp[i].func->queryProjSA)(projSA, v1, v2, |
| 527 |
> |
qflags, sd->tf->comp[i].dist); |
| 528 |
|
if (ec) |
| 529 |
|
return ec; |
| 530 |
|
} |
| 531 |
< |
return ec; |
| 531 |
> |
if (ec) { /* all diffuse? */ |
| 532 |
> |
projSA[0] = M_PI; |
| 533 |
> |
if (qflags == SDqueryMin+SDqueryMax) |
| 534 |
> |
projSA[1] = M_PI; |
| 535 |
> |
} |
| 536 |
> |
return SDEnone; |
| 537 |
|
} |
| 538 |
|
|
| 539 |
|
/* Return BSDF for the given incident and scattered ray vectors */ |
| 1123 |
|
break; |
| 1124 |
|
} |
| 1125 |
|
if (i < 0) { |
| 1126 |
< |
sprintf(errmsg, "undefined RowAngleBasis '%s'", cbasis); |
| 1126 |
> |
sprintf(errmsg, "undefined RowAngleBasis '%s'", rbasis); |
| 1127 |
|
error(WARNING, errmsg); |
| 1128 |
|
return; |
| 1129 |
|
} |