| 38 |
|
CMATRIX *cm; |
| 39 |
|
|
| 40 |
|
if ((nrows <= 0) | (ncols <= 0)) |
| 41 |
< |
return(NULL); |
| 41 |
> |
error(USER, "attempt to create empty matrix"); |
| 42 |
|
cm = (CMATRIX *)malloc(sizeof(CMATRIX) + |
| 43 |
|
3*sizeof(COLORV)*(nrows*ncols - 1)); |
| 44 |
|
if (cm == NULL) |
| 160 |
|
int maxrow = (nrows > 0 ? nrows : 32000); |
| 161 |
|
int r, c; |
| 162 |
|
for (r = 0; r < maxrow; r++) { |
| 163 |
< |
if (r >= cm->nrows) /* need more space? */ |
| 163 |
> |
if (r >= cm->nrows) /* need more space? */ |
| 164 |
|
cm = cm_resize(cm, 2*cm->nrows); |
| 165 |
|
for (c = 0; c < ncols; c++) { |
| 166 |
|
COLORV *cv = cm_lval(cm,r,c); |
| 167 |
|
if (fscanf(fp, COLSPEC, cv, cv+1, cv+2) != 3) |
| 168 |
< |
if ((nrows <= 0) & (r > 0) & (c == 0)) { |
| 168 |
> |
if ((nrows <= 0) & (r > 0) & !c) { |
| 169 |
|
cm = cm_resize(cm, maxrow=r); |
| 170 |
|
break; |
| 171 |
|
} else |
| 193 |
|
if (nread == cm->nrows*cm->ncols) |
| 194 |
|
/* need more space? */ |
| 195 |
|
cm = cm_resize(cm, 2*cm->nrows); |
| 196 |
< |
else if (nread % cm->ncols == 0) |
| 196 |
> |
else if (nread && !(nread % cm->ncols)) |
| 197 |
|
/* seem to be done */ |
| 198 |
|
cm = cm_resize(cm, nread/cm->ncols); |
| 199 |
|
else /* ended mid-row */ |
| 294 |
|
cm_bsdf(const struct BSDF_data *bsdf) |
| 295 |
|
{ |
| 296 |
|
CMATRIX *cm = cm_alloc(bsdf->nout, bsdf->ninc); |
| 297 |
< |
COLORV *mp = cm->cmem; |
| 297 |
> |
int nbadohm = 0; |
| 298 |
> |
int nneg = 0; |
| 299 |
|
int r, c; |
| 300 |
|
|
| 301 |
< |
for (r = 0; r < cm->nrows; r++) |
| 302 |
< |
for (c = 0; c < cm->ncols; c++, mp += 3) |
| 303 |
< |
mp[0] = mp[1] = mp[2] = BSDF_value(bsdf,c,r); |
| 301 |
> |
for (c = 0; c < cm->ncols; c++) { |
| 302 |
> |
float dom = getBSDF_incohm(bsdf,c); |
| 303 |
> |
FVECT v; |
| 304 |
> |
|
| 305 |
> |
if (dom <= .0) { |
| 306 |
> |
nbadohm++; |
| 307 |
> |
continue; |
| 308 |
> |
} |
| 309 |
> |
if (!getBSDF_incvec(v,bsdf,c) || v[2] > FTINY) |
| 310 |
> |
error(USER, "illegal incoming BTDF direction"); |
| 311 |
> |
dom *= -v[2]; |
| 312 |
> |
|
| 313 |
> |
for (r = 0; r < cm->nrows; r++) { |
| 314 |
> |
float f = BSDF_value(bsdf,c,r); |
| 315 |
> |
COLORV *mp = cm_lval(cm,r,c); |
| 316 |
> |
|
| 317 |
> |
if (f <= .0) { |
| 318 |
> |
nneg += (f < -FTINY); |
| 319 |
> |
f = .0f; |
| 320 |
> |
} |
| 321 |
> |
mp[0] = mp[1] = mp[2] = f * dom; |
| 322 |
> |
} |
| 323 |
> |
} |
| 324 |
> |
if (nneg || nbadohm) { |
| 325 |
> |
sprintf(errmsg, |
| 326 |
> |
"BTDF has %d negatives and %d bad incoming solid angles", |
| 327 |
> |
nneg, nbadohm); |
| 328 |
> |
error(WARNING, errmsg); |
| 329 |
> |
} |
| 330 |
|
return(cm); |
| 331 |
|
} |
| 332 |
|
|
| 432 |
|
progname); |
| 433 |
|
return(1); |
| 434 |
|
} |
| 435 |
+ |
/* load Tregenza vector */ |
| 436 |
|
tvec = cm_load(argv[4], 0, 1, DTascii); /* argv[4]==NULL iff argc==4 */ |
| 437 |
< |
Dmat = cm_load(argv[3], 0, tvec->nrows, DTfromHeader); |
| 437 |
> |
/* load BTDF */ |
| 438 |
|
btdf = load_BSDF(argv[2]); |
| 439 |
|
if (btdf == NULL) |
| 440 |
|
return(1); |
| 441 |
< |
if (btdf->ninc != Dmat->nrows) { |
| 442 |
< |
sprintf(errmsg, "Incoming BTDF dir (%d) mismatch to D (%d)", |
| 415 |
< |
btdf->ninc, Dmat->nrows); |
| 416 |
< |
error(USER, errmsg); |
| 417 |
< |
} |
| 441 |
> |
/* load Daylight matrix */ |
| 442 |
> |
Dmat = cm_load(argv[3], btdf->ninc, tvec->nrows, DTfromHeader); |
| 443 |
|
/* multiply vector through */ |
| 444 |
|
ivec = cm_multiply(Dmat, tvec); |
| 445 |
|
cm_free(Dmat); cm_free(tvec); |
