| 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) |
| 108 |
|
CMATRIX *cm; |
| 109 |
|
FILE *fp = stdin; |
| 110 |
|
|
| 111 |
+ |
if (ncols <= 0) |
| 112 |
+ |
error(USER, "Non-positive number of columns"); |
| 113 |
|
if (fname == NULL) |
| 114 |
|
fname = "<stdin>"; |
| 115 |
|
else if ((fp = fopen(fname, "r")) == NULL) { |
| 162 |
|
int maxrow = (nrows > 0 ? nrows : 32000); |
| 163 |
|
int r, c; |
| 164 |
|
for (r = 0; r < maxrow; r++) { |
| 165 |
< |
if (r >= cm->nrows) /* need more space? */ |
| 165 |
> |
if (r >= cm->nrows) /* need more space? */ |
| 166 |
|
cm = cm_resize(cm, 2*cm->nrows); |
| 167 |
|
for (c = 0; c < ncols; c++) { |
| 168 |
|
COLORV *cv = cm_lval(cm,r,c); |
| 169 |
|
if (fscanf(fp, COLSPEC, cv, cv+1, cv+2) != 3) |
| 170 |
< |
if ((nrows <= 0) & (r > 0) & (c == 0)) { |
| 170 |
> |
if ((nrows <= 0) & (r > 0) & !c) { |
| 171 |
|
cm = cm_resize(cm, maxrow=r); |
| 172 |
|
break; |
| 173 |
|
} else |
| 195 |
|
if (nread == cm->nrows*cm->ncols) |
| 196 |
|
/* need more space? */ |
| 197 |
|
cm = cm_resize(cm, 2*cm->nrows); |
| 198 |
< |
else if (nread % cm->ncols == 0) |
| 198 |
> |
else if (nread && !(nread % cm->ncols)) |
| 199 |
|
/* seem to be done */ |
| 200 |
|
cm = cm_resize(cm, nread/cm->ncols); |
| 201 |
|
else /* ended mid-row */ |
| 296 |
|
cm_bsdf(const struct BSDF_data *bsdf) |
| 297 |
|
{ |
| 298 |
|
CMATRIX *cm = cm_alloc(bsdf->nout, bsdf->ninc); |
| 299 |
< |
COLORV *mp = cm->cmem; |
| 299 |
> |
int nbadohm = 0; |
| 300 |
> |
int nneg = 0; |
| 301 |
|
int r, c; |
| 302 |
|
|
| 303 |
< |
for (r = 0; r < cm->nrows; r++) |
| 304 |
< |
for (c = 0; c < cm->ncols; c++, mp += 3) |
| 305 |
< |
mp[0] = mp[1] = mp[2] = BSDF_value(bsdf,c,r); |
| 303 |
> |
for (c = 0; c < cm->ncols; c++) { |
| 304 |
> |
float dom = getBSDF_incohm(bsdf,c); |
| 305 |
> |
FVECT v; |
| 306 |
> |
|
| 307 |
> |
if (dom <= .0) { |
| 308 |
> |
nbadohm++; |
| 309 |
> |
continue; |
| 310 |
> |
} |
| 311 |
> |
if (!getBSDF_incvec(v,bsdf,c) || v[2] > FTINY) |
| 312 |
> |
error(USER, "illegal incoming BTDF direction"); |
| 313 |
> |
dom *= -v[2]; |
| 314 |
> |
|
| 315 |
> |
for (r = 0; r < cm->nrows; r++) { |
| 316 |
> |
float f = BSDF_value(bsdf,c,r); |
| 317 |
> |
COLORV *mp = cm_lval(cm,r,c); |
| 318 |
> |
|
| 319 |
> |
if (f <= .0) { |
| 320 |
> |
nneg += (f < -FTINY); |
| 321 |
> |
f = .0f; |
| 322 |
> |
} |
| 323 |
> |
mp[0] = mp[1] = mp[2] = f * dom; |
| 324 |
> |
} |
| 325 |
> |
} |
| 326 |
> |
if (nneg || nbadohm) { |
| 327 |
> |
sprintf(errmsg, |
| 328 |
> |
"BTDF has %d negatives and %d bad incoming solid angles", |
| 329 |
> |
nneg, nbadohm); |
| 330 |
> |
error(WARNING, errmsg); |
| 331 |
> |
} |
| 332 |
|
return(cm); |
| 333 |
|
} |
| 334 |
|
|
| 335 |
|
/* Sum together a set of images and write result to stdout */ |
| 336 |
|
static int |
| 337 |
< |
sum_images(const char *fspec, const CMATRIX *cv) |
| 337 |
> |
sum_images(const char *fspec, const CMATRIX *cv, FILE *fp) |
| 338 |
|
{ |
| 339 |
|
int myDT = DTfromHeader; |
| 340 |
|
CMATRIX *pmat; |
| 372 |
|
pmat = cm_alloc(myYR, myXR); |
| 373 |
|
memset(pmat->cmem, 0, sizeof(COLOR)*myXR*myYR); |
| 374 |
|
/* finish header */ |
| 375 |
< |
fputformat(myDT==DTrgbe ? COLRFMT : CIEFMT, stdout); |
| 376 |
< |
fputc('\n', stdout); |
| 377 |
< |
fprtresolu(myXR, myYR, stdout); |
| 378 |
< |
fflush(stdout); |
| 375 |
> |
fputformat(myDT==DTrgbe ? COLRFMT : CIEFMT, fp); |
| 376 |
> |
fputc('\n', fp); |
| 377 |
> |
fprtresolu(myXR, myYR, fp); |
| 378 |
> |
fflush(fp); |
| 379 |
|
} else if ((dt != myDT) | (xr != myXR) | (yr != myYR)) { |
| 380 |
|
sprintf(errmsg, "picture '%s' format/size mismatch", |
| 381 |
|
fname); |
| 400 |
|
free(scanline); |
| 401 |
|
/* write scanlines */ |
| 402 |
|
for (y = 0; y < myYR; y++) |
| 403 |
< |
if (fwritescan((COLOR *)cm_lval(pmat, y, 0), myXR, stdout) < 0) |
| 403 |
> |
if (fwritescan((COLOR *)cm_lval(pmat, y, 0), myXR, fp) < 0) |
| 404 |
|
return(0); |
| 405 |
|
cm_free(pmat); /* all done */ |
| 406 |
< |
return(fflush(stdout) == 0); |
| 406 |
> |
return(fflush(fp) == 0); |
| 407 |
|
} |
| 408 |
|
|
| 409 |
< |
/* check to see if a string contains a %d specification */ |
| 410 |
< |
int |
| 411 |
< |
hasDecimalSpec(const char *s) |
| 409 |
> |
/* check to see if a string contains a %d or %o specification */ |
| 410 |
> |
static int |
| 411 |
> |
hasNumberFormat(const char *s) |
| 412 |
|
{ |
| 413 |
|
while (*s && *s != '%') |
| 414 |
|
s++; |
| 418 |
|
++s; |
| 419 |
|
while (isdigit(*s)); |
| 420 |
|
|
| 421 |
< |
return(*s == 'd'); |
| 421 |
> |
return(*s == 'd' | *s == 'i' | *s == 'o' | *s == 'x' | *s == 'X'); |
| 422 |
|
} |
| 423 |
|
|
| 424 |
|
int |
| 425 |
|
main(int argc, char *argv[]) |
| 426 |
|
{ |
| 427 |
< |
CMATRIX *tvec, *Dmat, *Tmat, *ivec, *cvec; |
| 399 |
< |
struct BSDF_data *btdf; |
| 427 |
> |
CMATRIX *cvec; |
| 428 |
|
|
| 429 |
|
progname = argv[0]; |
| 430 |
|
|
| 431 |
< |
if ((argc < 4) | (argc > 5)) { |
| 432 |
< |
fprintf(stderr, "Usage: %s Vspec Tbsdf.xml Dmat.dat [tregvec]\n", |
| 433 |
< |
progname); |
| 431 |
> |
if ((argc < 2) | (argc > 5)) { |
| 432 |
> |
fprintf(stderr, "Usage: %s DCspec [tregvec]\n", progname); |
| 433 |
> |
fprintf(stderr, " or: %s Vspec Tbsdf.xml Dmat.dat [tregvec]\n", |
| 434 |
> |
progname); |
| 435 |
|
return(1); |
| 436 |
|
} |
| 437 |
< |
tvec = cm_load(argv[4], 0, 1, DTascii); /* argv[4]==NULL iff argc==4 */ |
| 438 |
< |
Dmat = cm_load(argv[3], 0, tvec->nrows, DTfromHeader); |
| 439 |
< |
btdf = load_BSDF(argv[2]); |
| 440 |
< |
if (btdf == NULL) |
| 441 |
< |
return(1); |
| 442 |
< |
if (btdf->ninc != Dmat->nrows) { |
| 443 |
< |
sprintf(errmsg, "Incoming BTDF dir (%d) mismatch to D (%d)", |
| 444 |
< |
btdf->ninc, Dmat->nrows); |
| 445 |
< |
error(USER, errmsg); |
| 446 |
< |
} |
| 437 |
> |
|
| 438 |
> |
if (argc > 3) { /* need to compute DC matrix? */ |
| 439 |
> |
CMATRIX *svec, *Dmat, *Tmat, *ivec; |
| 440 |
> |
struct BSDF_data *btdf; |
| 441 |
> |
/* get sky vector */ |
| 442 |
> |
svec = cm_load(argv[4], 0, 1, DTascii); |
| 443 |
> |
/* load BSDF */ |
| 444 |
> |
btdf = load_BSDF(argv[2]); |
| 445 |
> |
if (btdf == NULL) |
| 446 |
> |
return(1); |
| 447 |
> |
/* load Daylight matrix */ |
| 448 |
> |
Dmat = cm_load(argv[3], btdf->ninc, svec->nrows, DTfromHeader); |
| 449 |
|
/* multiply vector through */ |
| 450 |
< |
ivec = cm_multiply(Dmat, tvec); |
| 451 |
< |
cm_free(Dmat); cm_free(tvec); |
| 452 |
< |
Tmat = cm_bsdf(btdf); /* convert BTDF to matrix */ |
| 453 |
< |
free_BSDF(btdf); |
| 454 |
< |
cvec = cm_multiply(Tmat, ivec); /* cvec = component vector */ |
| 455 |
< |
cm_free(Tmat); cm_free(ivec); |
| 456 |
< |
if (hasDecimalSpec(argv[1])) { /* generating image */ |
| 450 |
> |
ivec = cm_multiply(Dmat, svec); |
| 451 |
> |
cm_free(Dmat); cm_free(svec); |
| 452 |
> |
Tmat = cm_bsdf(btdf); /* convert BTDF to matrix */ |
| 453 |
> |
free_BSDF(btdf); |
| 454 |
> |
cvec = cm_multiply(Tmat, ivec); /* cvec = component vector */ |
| 455 |
> |
cm_free(Tmat); cm_free(ivec); |
| 456 |
> |
} else { /* else just use sky vector */ |
| 457 |
> |
cvec = cm_load(argv[2], 0, 1, DTascii); |
| 458 |
> |
} |
| 459 |
> |
|
| 460 |
> |
if (hasNumberFormat(argv[1])) { /* generating image */ |
| 461 |
|
SET_FILE_BINARY(stdout); |
| 462 |
|
newheader("RADIANCE", stdout); |
| 463 |
|
printargs(argc, argv, stdout); |
| 464 |
|
fputnow(stdout); |
| 465 |
< |
if (!sum_images(argv[1], cvec)) |
| 465 |
> |
if (!sum_images(argv[1], cvec, stdout)) |
| 466 |
|
return(1); |
| 467 |
|
} else { /* generating vector */ |
| 468 |
|
CMATRIX *Vmat = cm_load(argv[1], 0, cvec->nrows, DTfromHeader); |
