10 |
|
#include <ctype.h> |
11 |
|
#include "standard.h" |
12 |
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#include "platform.h" |
13 |
+ |
#include "paths.h" |
14 |
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#include "color.h" |
15 |
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#include "resolu.h" |
16 |
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#include "bsdf.h" |
17 |
+ |
#include "bsdf_m.h" |
18 |
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|
19 |
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char *progname; /* global argv[0] */ |
20 |
|
|
21 |
< |
/* Data types for matrix loading */ |
21 |
> |
/* Data types for file loading */ |
22 |
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enum {DTfromHeader, DTascii, DTfloat, DTdouble, DTrgbe, DTxyze}; |
23 |
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|
24 |
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/* A color coefficient matrix -- vectors have ncols==1 */ |
40 |
|
CMATRIX *cm; |
41 |
|
|
42 |
|
if ((nrows <= 0) | (ncols <= 0)) |
43 |
< |
return(NULL); |
43 |
> |
error(USER, "attempt to create empty matrix"); |
44 |
|
cm = (CMATRIX *)malloc(sizeof(CMATRIX) + |
45 |
|
3*sizeof(COLORV)*(nrows*ncols - 1)); |
46 |
|
if (cm == NULL) |
107 |
|
static CMATRIX * |
108 |
|
cm_load(const char *fname, int nrows, int ncols, int dtype) |
109 |
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{ |
108 |
– |
CMATRIX *cm; |
110 |
|
FILE *fp = stdin; |
111 |
+ |
CMATRIX *cm; |
112 |
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|
113 |
+ |
if (ncols <= 0) |
114 |
+ |
error(USER, "Non-positive number of columns"); |
115 |
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if (fname == NULL) |
116 |
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fname = "<stdin>"; |
117 |
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else if ((fp = fopen(fname, "r")) == NULL) { |
118 |
|
sprintf(errmsg, "cannot open file '%s'", fname); |
119 |
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error(SYSTEM, errmsg); |
120 |
|
} |
121 |
+ |
#ifdef getc_unlocked |
122 |
+ |
flockfile(fp); |
123 |
+ |
#endif |
124 |
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if (dtype != DTascii) |
125 |
< |
SET_FILE_BINARY(fp); |
125 |
> |
SET_FILE_BINARY(fp); /* doesn't really work */ |
126 |
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if (dtype == DTfromHeader) |
127 |
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dtype = getDTfromHeader(fp); |
128 |
|
switch (dtype) { |
132 |
|
break; |
133 |
|
default: |
134 |
|
error(USER, "unexpected data type in cm_load()"); |
128 |
– |
return(NULL); |
135 |
|
} |
136 |
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if (nrows <= 0) { /* don't know length? */ |
137 |
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int guessrows = 147; /* usually big enough */ |
141 |
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long endpos = ftell(fp); |
142 |
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long elemsiz = 3*(dtype==DTfloat ? |
143 |
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sizeof(float) : sizeof(double)); |
144 |
< |
guessrows = (endpos - startpos)/elemsiz; |
144 |
> |
|
145 |
> |
if ((endpos - startpos) % (ncols*elemsiz)) { |
146 |
> |
sprintf(errmsg, |
147 |
> |
"improper length for binary file '%s'", |
148 |
> |
fname); |
149 |
> |
error(USER, errmsg); |
150 |
> |
} |
151 |
> |
guessrows = (endpos - startpos)/(ncols*elemsiz); |
152 |
|
if (fseek(fp, startpos, SEEK_SET) < 0) { |
153 |
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sprintf(errmsg, |
154 |
|
"fseek() error on file '%s'", |
155 |
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fname); |
156 |
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error(SYSTEM, errmsg); |
157 |
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} |
158 |
< |
if ((endpos - startpos) % elemsiz == 0) |
146 |
< |
nrows = guessrows; /* confident */ |
158 |
> |
nrows = guessrows; /* we're confident */ |
159 |
|
} |
160 |
|
} |
161 |
|
cm = cm_alloc(guessrows, ncols); |
162 |
|
} else |
163 |
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cm = cm_alloc(nrows, ncols); |
164 |
< |
if (cm == NULL) |
164 |
> |
if (cm == NULL) /* XXX never happens */ |
165 |
|
return(NULL); |
166 |
|
if (dtype == DTascii) { /* read text file */ |
167 |
|
int maxrow = (nrows > 0 ? nrows : 32000); |
168 |
|
int r, c; |
169 |
|
for (r = 0; r < maxrow; r++) { |
170 |
< |
if (r >= cm->nrows) /* need more space? */ |
170 |
> |
if (r >= cm->nrows) /* need more space? */ |
171 |
|
cm = cm_resize(cm, 2*cm->nrows); |
172 |
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for (c = 0; c < ncols; c++) { |
173 |
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COLORV *cv = cm_lval(cm,r,c); |
174 |
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if (fscanf(fp, COLSPEC, cv, cv+1, cv+2) != 3) |
175 |
< |
if ((nrows <= 0) & (r > 0) & (c == 0)) { |
175 |
> |
if ((nrows <= 0) & (r > 0) & !c) { |
176 |
|
cm = cm_resize(cm, maxrow=r); |
177 |
|
break; |
178 |
|
} else |
200 |
|
if (nread == cm->nrows*cm->ncols) |
201 |
|
/* need more space? */ |
202 |
|
cm = cm_resize(cm, 2*cm->nrows); |
203 |
< |
else if (nread % cm->ncols == 0) |
203 |
> |
else if (nread && !(nread % cm->ncols)) |
204 |
|
/* seem to be done */ |
205 |
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cm = cm_resize(cm, nread/cm->ncols); |
206 |
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else /* ended mid-row */ |
222 |
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copycolor(cvp, dc); |
223 |
|
cvp += 3; |
224 |
|
} |
213 |
– |
|
225 |
|
} else /* dtype == DTfloat */ { |
226 |
|
float fc[3]; /* load from float */ |
227 |
|
COLORV *cvp = cm->cmem; |
236 |
|
cvp += 3; |
237 |
|
} |
238 |
|
} |
239 |
< |
if (getc(fp) != EOF) { |
239 |
> |
if (fgetc(fp) != EOF) { |
240 |
|
sprintf(errmsg, |
241 |
|
"unexpected data at end of binary file %s", |
242 |
|
fname); |
245 |
|
} |
246 |
|
if (fp != stdin) |
247 |
|
fclose(fp); |
248 |
+ |
#ifdef getc_unlocked |
249 |
+ |
else |
250 |
+ |
funlockfile(fp); |
251 |
+ |
#endif |
252 |
|
return(cm); |
253 |
|
EOFerror: |
254 |
< |
sprintf(errmsg, "unexpected EOF reading %s", |
240 |
< |
fname); |
254 |
> |
sprintf(errmsg, "unexpected EOF reading %s", fname); |
255 |
|
error(USER, errmsg); |
256 |
|
not_handled: |
257 |
|
error(INTERNAL, "unhandled data size or length in cm_load()"); |
258 |
|
return(NULL); /* gratis return */ |
259 |
|
} |
260 |
|
|
261 |
< |
/* Multiply two matrices (or a matrix and a vector) and allocate the result*/ |
261 |
> |
/* Extract a column vector from a matrix */ |
262 |
|
static CMATRIX * |
263 |
+ |
cm_column(const CMATRIX *cm, int c) |
264 |
+ |
{ |
265 |
+ |
CMATRIX *cvr; |
266 |
+ |
int dr; |
267 |
+ |
|
268 |
+ |
if ((c < 0) | (c >= cm->ncols)) |
269 |
+ |
error(INTERNAL, "column requested outside matrix"); |
270 |
+ |
cvr = cm_alloc(cm->nrows, 1); |
271 |
+ |
if (cvr == NULL) |
272 |
+ |
return(NULL); |
273 |
+ |
for (dr = 0; dr < cm->nrows; dr++) { |
274 |
+ |
const COLORV *sp = cm_lval(cm,dr,c); |
275 |
+ |
COLORV *dp = cv_lval(cvr,dr); |
276 |
+ |
dp[0] = sp[0]; |
277 |
+ |
dp[1] = sp[1]; |
278 |
+ |
dp[2] = sp[2]; |
279 |
+ |
} |
280 |
+ |
return(cvr); |
281 |
+ |
} |
282 |
+ |
|
283 |
+ |
/* Scale a matrix by a single value */ |
284 |
+ |
static CMATRIX * |
285 |
+ |
cm_scale(const CMATRIX *cm1, const COLOR sca) |
286 |
+ |
{ |
287 |
+ |
CMATRIX *cmr; |
288 |
+ |
int dr, dc; |
289 |
+ |
|
290 |
+ |
cmr = cm_alloc(cm1->nrows, cm1->ncols); |
291 |
+ |
if (cmr == NULL) |
292 |
+ |
return(NULL); |
293 |
+ |
for (dr = 0; dr < cmr->nrows; dr++) |
294 |
+ |
for (dc = 0; dc < cmr->ncols; dc++) { |
295 |
+ |
const COLORV *sp = cm_lval(cm1,dr,dc); |
296 |
+ |
COLORV *dp = cm_lval(cmr,dr,dc); |
297 |
+ |
dp[0] = sp[0] * sca[0]; |
298 |
+ |
dp[1] = sp[1] * sca[1]; |
299 |
+ |
dp[2] = sp[2] * sca[2]; |
300 |
+ |
} |
301 |
+ |
return(cmr); |
302 |
+ |
} |
303 |
+ |
|
304 |
+ |
/* Multiply two matrices (or a matrix and a vector) and allocate the result */ |
305 |
+ |
static CMATRIX * |
306 |
|
cm_multiply(const CMATRIX *cm1, const CMATRIX *cm2) |
307 |
|
{ |
308 |
+ |
char *rowcheck=NULL, *colcheck=NULL; |
309 |
|
CMATRIX *cmr; |
310 |
|
int dr, dc, i; |
311 |
|
|
314 |
|
cmr = cm_alloc(cm1->nrows, cm2->ncols); |
315 |
|
if (cmr == NULL) |
316 |
|
return(NULL); |
317 |
+ |
/* optimization: check for zero rows & cols */ |
318 |
+ |
if (((cm1->nrows > 5) | (cm2->ncols > 5)) & (cm1->ncols > 5)) { |
319 |
+ |
static const COLOR czero; |
320 |
+ |
rowcheck = (char *)calloc(cmr->nrows, 1); |
321 |
+ |
for (dr = cm1->nrows*(rowcheck != NULL); dr--; ) |
322 |
+ |
for (dc = cm1->ncols; dc--; ) |
323 |
+ |
if (memcmp(cm_lval(cm1,dr,dc), czero, sizeof(COLOR))) { |
324 |
+ |
rowcheck[dr] = 1; |
325 |
+ |
break; |
326 |
+ |
} |
327 |
+ |
colcheck = (char *)calloc(cmr->ncols, 1); |
328 |
+ |
for (dc = cm2->ncols*(colcheck != NULL); dc--; ) |
329 |
+ |
for (dr = cm2->nrows; dr--; ) |
330 |
+ |
if (memcmp(cm_lval(cm2,dr,dc), czero, sizeof(COLOR))) { |
331 |
+ |
colcheck[dc] = 1; |
332 |
+ |
break; |
333 |
+ |
} |
334 |
+ |
} |
335 |
|
for (dr = 0; dr < cmr->nrows; dr++) |
336 |
|
for (dc = 0; dc < cmr->ncols; dc++) { |
337 |
|
COLORV *dp = cm_lval(cmr,dr,dc); |
338 |
|
dp[0] = dp[1] = dp[2] = 0; |
339 |
+ |
if (rowcheck != NULL && !rowcheck[dr]) |
340 |
+ |
continue; |
341 |
+ |
if (colcheck != NULL && !colcheck[dc]) |
342 |
+ |
continue; |
343 |
|
for (i = 0; i < cm1->ncols; i++) { |
344 |
|
const COLORV *cp1 = cm_lval(cm1,dr,i); |
345 |
|
const COLORV *cp2 = cm_lval(cm2,i,dc); |
348 |
|
dp[2] += cp1[2] * cp2[2]; |
349 |
|
} |
350 |
|
} |
351 |
+ |
if (rowcheck != NULL) free(rowcheck); |
352 |
+ |
if (colcheck != NULL) free(colcheck); |
353 |
|
return(cmr); |
354 |
|
} |
355 |
|
|
367 |
|
} |
368 |
|
} |
369 |
|
|
370 |
< |
/* convert a BSDF to our matrix representation */ |
370 |
> |
/* Convert a BSDF to our matrix representation */ |
371 |
|
static CMATRIX * |
372 |
< |
cm_bsdf(const struct BSDF_data *bsdf) |
372 |
> |
cm_bsdf(const COLOR bsdfLamb, const COLOR specCol, const SDMat *bsdf) |
373 |
|
{ |
374 |
|
CMATRIX *cm = cm_alloc(bsdf->nout, bsdf->ninc); |
375 |
< |
COLORV *mp = cm->cmem; |
375 |
> |
int nbadohm = 0; |
376 |
> |
int nneg = 0; |
377 |
|
int r, c; |
378 |
< |
|
379 |
< |
for (r = 0; r < cm->nrows; r++) |
380 |
< |
for (c = 0; c < cm->ncols; c++, mp += 3) |
381 |
< |
mp[0] = mp[1] = mp[2] = BSDF_value(bsdf,c,r); |
378 |
> |
/* loop over incident angles */ |
379 |
> |
for (c = 0; c < cm->ncols; c++) { |
380 |
> |
const double dom = mBSDF_incohm(bsdf,c); |
381 |
> |
/* projected solid angle */ |
382 |
> |
nbadohm += (dom <= 0); |
383 |
> |
|
384 |
> |
for (r = 0; r < cm->nrows; r++) { |
385 |
> |
float f = mBSDF_value(bsdf,c,r); |
386 |
> |
COLORV *mp = cm_lval(cm,r,c); |
387 |
> |
/* check BSDF value */ |
388 |
> |
if ((f <= 0) | (dom <= 0)) { |
389 |
> |
nneg += (f < -FTINY); |
390 |
> |
f = .0f; |
391 |
> |
} |
392 |
> |
copycolor(mp, specCol); |
393 |
> |
scalecolor(mp, f); |
394 |
> |
addcolor(mp, bsdfLamb); |
395 |
> |
scalecolor(mp, dom); |
396 |
> |
} |
397 |
> |
} |
398 |
> |
if (nneg | nbadohm) { |
399 |
> |
sprintf(errmsg, |
400 |
> |
"BTDF has %d negatives and %d bad incoming solid angles", |
401 |
> |
nneg, nbadohm); |
402 |
> |
error(WARNING, errmsg); |
403 |
> |
} |
404 |
|
return(cm); |
405 |
|
} |
406 |
|
|
407 |
< |
/* Sum together a set of images and write result to stdout */ |
407 |
> |
/* Convert between input and output indices for reciprocity */ |
408 |
|
static int |
409 |
< |
sum_images(const char *fspec, const CMATRIX *cv) |
409 |
> |
recip_out_from_in(const SDMat *bsdf, int in_recip) |
410 |
|
{ |
411 |
+ |
FVECT v; |
412 |
+ |
|
413 |
+ |
if (!mBSDF_incvec(v, bsdf, in_recip+.5)) |
414 |
+ |
return(in_recip); /* XXX should be error! */ |
415 |
+ |
v[2] = -v[2]; |
416 |
+ |
return(mBSDF_outndx(bsdf, v)); |
417 |
+ |
} |
418 |
+ |
|
419 |
+ |
/* Convert between output and input indices for reciprocity */ |
420 |
+ |
static int |
421 |
+ |
recip_in_from_out(const SDMat *bsdf, int out_recip) |
422 |
+ |
{ |
423 |
+ |
FVECT v; |
424 |
+ |
|
425 |
+ |
if (!mBSDF_outvec(v, bsdf, out_recip+.5)) |
426 |
+ |
return(out_recip); /* XXX should be error! */ |
427 |
+ |
v[2] = -v[2]; |
428 |
+ |
return(mBSDF_incndx(bsdf, v)); |
429 |
+ |
} |
430 |
+ |
|
431 |
+ |
/* Convert a BSDF to our matrix representation, applying reciprocity */ |
432 |
+ |
static CMATRIX * |
433 |
+ |
cm_bsdf_recip(const COLOR bsdfLamb, const COLOR specCol, const SDMat *bsdf) |
434 |
+ |
{ |
435 |
+ |
CMATRIX *cm = cm_alloc(bsdf->ninc, bsdf->nout); |
436 |
+ |
int nbadohm = 0; |
437 |
+ |
int nneg = 0; |
438 |
+ |
int r, c; |
439 |
+ |
/* loop over incident angles */ |
440 |
+ |
for (c = 0; c < cm->ncols; c++) { |
441 |
+ |
const int ro = recip_out_from_in(bsdf,c); |
442 |
+ |
const double dom = mBSDF_outohm(bsdf,ro); |
443 |
+ |
/* projected solid angle */ |
444 |
+ |
nbadohm += (dom <= 0); |
445 |
+ |
|
446 |
+ |
for (r = 0; r < cm->nrows; r++) { |
447 |
+ |
const int ri = recip_in_from_out(bsdf,r); |
448 |
+ |
float f = mBSDF_value(bsdf,ri,ro); |
449 |
+ |
COLORV *mp = cm_lval(cm,r,c); |
450 |
+ |
/* check BSDF value */ |
451 |
+ |
if ((f <= 0) | (dom <= 0)) { |
452 |
+ |
nneg += (f < -FTINY); |
453 |
+ |
f = .0f; |
454 |
+ |
} |
455 |
+ |
copycolor(mp, specCol); |
456 |
+ |
scalecolor(mp, f); |
457 |
+ |
addcolor(mp, bsdfLamb); |
458 |
+ |
scalecolor(mp, dom); |
459 |
+ |
} |
460 |
+ |
} |
461 |
+ |
if (nneg | nbadohm) { |
462 |
+ |
sprintf(errmsg, |
463 |
+ |
"BTDF has %d negatives and %d bad incoming solid angles", |
464 |
+ |
nneg, nbadohm); |
465 |
+ |
error(WARNING, errmsg); |
466 |
+ |
} |
467 |
+ |
return(cm); |
468 |
+ |
} |
469 |
+ |
|
470 |
+ |
/* Load and convert a matrix BSDF from the given XML file */ |
471 |
+ |
static CMATRIX * |
472 |
+ |
cm_loadBSDF(char *fname, COLOR cLamb) |
473 |
+ |
{ |
474 |
+ |
CMATRIX *Tmat; |
475 |
+ |
char *fpath; |
476 |
+ |
int recip; |
477 |
+ |
SDError ec; |
478 |
+ |
SDData myBSDF; |
479 |
+ |
SDSpectralDF *tdf; |
480 |
+ |
COLOR bsdfLamb, specCol; |
481 |
+ |
/* find path to BSDF file */ |
482 |
+ |
fpath = getpath(fname, getrlibpath(), R_OK); |
483 |
+ |
if (fpath == NULL) { |
484 |
+ |
sprintf(errmsg, "cannot find BSDF file '%s'", fname); |
485 |
+ |
error(USER, errmsg); |
486 |
+ |
} |
487 |
+ |
SDclearBSDF(&myBSDF, fname); /* load XML and check type */ |
488 |
+ |
ec = SDloadFile(&myBSDF, fpath); |
489 |
+ |
if (ec) |
490 |
+ |
error(USER, transSDError(ec)); |
491 |
+ |
ccy2rgb(&myBSDF.tLamb.spec, myBSDF.tLamb.cieY/PI, bsdfLamb); |
492 |
+ |
recip = (myBSDF.tb == NULL); |
493 |
+ |
tdf = recip ? myBSDF.tf : myBSDF.tb; |
494 |
+ |
if (tdf == NULL) { /* no non-Lambertian transmission? */ |
495 |
+ |
if (cLamb != NULL) |
496 |
+ |
copycolor(cLamb, bsdfLamb); |
497 |
+ |
SDfreeBSDF(&myBSDF); |
498 |
+ |
return(NULL); |
499 |
+ |
} |
500 |
+ |
if (tdf->ncomp != 1 || tdf->comp[0].func != &SDhandleMtx) { |
501 |
+ |
sprintf(errmsg, "unsupported BSDF '%s'", fpath); |
502 |
+ |
error(USER, errmsg); |
503 |
+ |
} |
504 |
+ |
/* convert BTDF to matrix */ |
505 |
+ |
ccy2rgb(&tdf->comp[0].cspec[0], 1., specCol); |
506 |
+ |
Tmat = recip ? cm_bsdf_recip(bsdfLamb, specCol, (SDMat *)tdf->comp[0].dist) |
507 |
+ |
: cm_bsdf(bsdfLamb, specCol, (SDMat *)tdf->comp[0].dist); |
508 |
+ |
if (cLamb != NULL) /* Lambertian is included */ |
509 |
+ |
setcolor(cLamb, .0, .0, .0); |
510 |
+ |
/* free BSDF and return */ |
511 |
+ |
SDfreeBSDF(&myBSDF); |
512 |
+ |
return(Tmat); |
513 |
+ |
} |
514 |
+ |
|
515 |
+ |
/* Sum together a set of images and write result to fout */ |
516 |
+ |
static int |
517 |
+ |
sum_images(const char *fspec, const CMATRIX *cv, FILE *fout) |
518 |
+ |
{ |
519 |
|
int myDT = DTfromHeader; |
520 |
< |
CMATRIX *pmat; |
521 |
< |
COLOR *scanline; |
522 |
< |
int myXR, myYR; |
520 |
> |
COLOR *scanline = NULL; |
521 |
> |
CMATRIX *pmat = NULL; |
522 |
> |
int myXR=0, myYR=0; |
523 |
|
int i, y; |
524 |
|
|
525 |
|
if (cv->ncols != 1) |
530 |
|
FILE *fp; |
531 |
|
int dt, xr, yr; |
532 |
|
COLORV *psp; |
533 |
+ |
/* check for zero */ |
534 |
+ |
if ((scv[RED] == 0) & (scv[GRN] == 0) & (scv[BLU] == 0) && |
535 |
+ |
(myDT != DTfromHeader) | (i < cv->nrows-1)) |
536 |
+ |
continue; |
537 |
|
/* open next picture */ |
538 |
|
sprintf(fname, fspec, i); |
539 |
|
if ((fp = fopen(fname, "r")) == NULL) { |
555 |
|
error(SYSTEM, "out of memory in sum_images()"); |
556 |
|
pmat = cm_alloc(myYR, myXR); |
557 |
|
memset(pmat->cmem, 0, sizeof(COLOR)*myXR*myYR); |
558 |
+ |
/* finish header */ |
559 |
+ |
fputformat(myDT==DTrgbe ? COLRFMT : CIEFMT, fout); |
560 |
+ |
fputc('\n', fout); |
561 |
+ |
fprtresolu(myXR, myYR, fout); |
562 |
+ |
fflush(fout); |
563 |
|
} else if ((dt != myDT) | (xr != myXR) | (yr != myYR)) { |
564 |
|
sprintf(errmsg, "picture '%s' format/size mismatch", |
565 |
|
fname); |
582 |
|
fclose(fp); /* done this picture */ |
583 |
|
} |
584 |
|
free(scanline); |
363 |
– |
/* finish header */ |
364 |
– |
fputformat(myDT==DTrgbe ? COLRFMT : CIEFMT, stdout); |
365 |
– |
fputc('\n', stdout); |
366 |
– |
fprtresolu(myXR, myYR, stdout); |
585 |
|
/* write scanlines */ |
586 |
|
for (y = 0; y < myYR; y++) |
587 |
< |
if (fwritescan((COLOR *)cm_lval(pmat, y, 0), myXR, stdout) < 0) |
587 |
> |
if (fwritescan((COLOR *)cm_lval(pmat, y, 0), myXR, fout) < 0) |
588 |
|
return(0); |
589 |
|
cm_free(pmat); /* all done */ |
590 |
< |
return(fflush(stdout) == 0); |
590 |
> |
return(fflush(fout) == 0); |
591 |
|
} |
592 |
|
|
593 |
< |
/* check to see if a string contains a %d specification */ |
594 |
< |
int |
595 |
< |
hasDecimalSpec(const char *s) |
593 |
> |
/* check to see if a string contains a %d or %o specification */ |
594 |
> |
static int |
595 |
> |
hasNumberFormat(const char *s) |
596 |
|
{ |
597 |
< |
while (*s && *s != '%') |
380 |
< |
s++; |
381 |
< |
if (!*s) |
597 |
> |
if (s == NULL) |
598 |
|
return(0); |
383 |
– |
do |
384 |
– |
++s; |
385 |
– |
while (isdigit(*s)); |
599 |
|
|
600 |
< |
return(*s == 'd'); |
600 |
> |
while (*s) { |
601 |
> |
while (*s != '%') |
602 |
> |
if (!*s++) |
603 |
> |
return(0); |
604 |
> |
if (*++s == '%') { /* ignore "%%" */ |
605 |
> |
++s; |
606 |
> |
continue; |
607 |
> |
} |
608 |
> |
while (isdigit(*s)) /* field length */ |
609 |
> |
++s; |
610 |
> |
/* field we'll use? */ |
611 |
> |
if ((*s == 'd') | (*s == 'i') | (*s == 'o') | |
612 |
> |
(*s == 'x') | (*s == 'X')) |
613 |
> |
return(1); |
614 |
> |
} |
615 |
> |
return(0); /* didn't find one */ |
616 |
|
} |
617 |
|
|
618 |
|
int |
619 |
|
main(int argc, char *argv[]) |
620 |
|
{ |
621 |
< |
CMATRIX *tvec, *Dmat, *Tmat, *vtmp, *cvec; |
622 |
< |
struct BSDF_data *btdf; |
621 |
> |
int skyfmt = DTascii; |
622 |
> |
int nsteps = 1; |
623 |
> |
char *ofspec = NULL; |
624 |
> |
FILE *ofp = stdout; |
625 |
> |
CMATRIX *cmtx; /* component vector/matrix result */ |
626 |
> |
char fnbuf[256]; |
627 |
> |
int a, i; |
628 |
|
|
629 |
|
progname = argv[0]; |
630 |
+ |
/* get options */ |
631 |
+ |
for (a = 1; a < argc && argv[a][0] == '-'; a++) |
632 |
+ |
switch (argv[a][1]) { |
633 |
+ |
case 'n': |
634 |
+ |
nsteps = atoi(argv[++a]); |
635 |
+ |
if (nsteps <= 0) |
636 |
+ |
goto userr; |
637 |
+ |
break; |
638 |
+ |
case 'o': |
639 |
+ |
ofspec = argv[++a]; |
640 |
+ |
break; |
641 |
+ |
case 'i': |
642 |
+ |
switch (argv[a][2]) { |
643 |
+ |
case 'f': |
644 |
+ |
skyfmt = DTfloat; |
645 |
+ |
break; |
646 |
+ |
case 'd': |
647 |
+ |
skyfmt = DTdouble; |
648 |
+ |
break; |
649 |
+ |
case 'a': |
650 |
+ |
skyfmt = DTascii; |
651 |
+ |
break; |
652 |
+ |
default: |
653 |
+ |
goto userr; |
654 |
+ |
} |
655 |
+ |
break; |
656 |
+ |
default: |
657 |
+ |
goto userr; |
658 |
+ |
} |
659 |
+ |
if ((argc-a < 1) | (argc-a > 4)) |
660 |
+ |
goto userr; |
661 |
|
|
662 |
< |
if ((argc < 4) | (argc > 5)) { |
663 |
< |
fprintf(stderr, "Usage: %s Vspec Tbsdf.xml Dmat.dat [tregvec]\n", |
664 |
< |
progname); |
665 |
< |
return(1); |
662 |
> |
if (argc-a > 2) { /* VTDs expression */ |
663 |
> |
CMATRIX *smtx, *Dmat, *Tmat, *imtx; |
664 |
> |
COLOR tLamb; |
665 |
> |
/* get sky vector/matrix */ |
666 |
> |
smtx = cm_load(argv[a+3], 0, nsteps, skyfmt); |
667 |
> |
/* load BSDF */ |
668 |
> |
Tmat = cm_loadBSDF(argv[a+1], tLamb); |
669 |
> |
/* load Daylight matrix */ |
670 |
> |
Dmat = cm_load(argv[a+2], Tmat==NULL ? 0 : Tmat->ncols, |
671 |
> |
smtx->nrows, DTfromHeader); |
672 |
> |
/* multiply vector through */ |
673 |
> |
imtx = cm_multiply(Dmat, smtx); |
674 |
> |
cm_free(Dmat); cm_free(smtx); |
675 |
> |
if (Tmat == NULL) { /* diffuse only */ |
676 |
> |
cmtx = cm_scale(imtx, tLamb); |
677 |
> |
} else { /* else apply BTDF matrix */ |
678 |
> |
cmtx = cm_multiply(Tmat, imtx); |
679 |
> |
cm_free(Tmat); |
680 |
> |
} |
681 |
> |
cm_free(imtx); |
682 |
> |
} else { /* sky vector/matrix only */ |
683 |
> |
cmtx = cm_load(argv[a+1], 0, nsteps, skyfmt); |
684 |
|
} |
685 |
< |
tvec = cm_load(argv[4], 0, 1, DTascii); /* argv[4]==NULL iff argc==4 */ |
686 |
< |
Dmat = cm_load(argv[3], 0, tvec->nrows, DTfromHeader); |
687 |
< |
btdf = load_BSDF(argv[2]); |
688 |
< |
if (btdf == NULL) |
407 |
< |
return(1); |
408 |
< |
if (btdf->ninc != Dmat->nrows) { |
409 |
< |
sprintf(errmsg, "Incoming BTDF dir (%d) mismatch to D (%d)", |
410 |
< |
btdf->ninc, Dmat->nrows); |
411 |
< |
error(USER, errmsg); |
685 |
> |
/* prepare output stream */ |
686 |
> |
if ((ofspec != NULL) & (nsteps == 1) && hasNumberFormat(ofspec)) { |
687 |
> |
sprintf(fnbuf, ofspec, 1); |
688 |
> |
ofspec = fnbuf; |
689 |
|
} |
690 |
< |
/* multiply vector through */ |
691 |
< |
vtmp = cm_multiply(Dmat, tvec); |
692 |
< |
cm_free(Dmat); cm_free(tvec); |
693 |
< |
Tmat = cm_bsdf(btdf); /* convert BTDF to matrix */ |
417 |
< |
free_BSDF(btdf); |
418 |
< |
cvec = cm_multiply(Tmat, vtmp); /* cvec = component vector */ |
419 |
< |
cm_free(Tmat); cm_free(vtmp); |
420 |
< |
if (hasDecimalSpec(argv[1])) { /* generating image */ |
421 |
< |
SET_FILE_BINARY(stdout); |
422 |
< |
newheader("RADIANCE", stdout); |
423 |
< |
printargs(argc, argv, stdout); |
424 |
< |
fputnow(stdout); |
425 |
< |
if (!sum_images(argv[1], cvec)) |
690 |
> |
if (ofspec != NULL && !hasNumberFormat(ofspec)) { |
691 |
> |
if ((ofp = fopen(ofspec, "w")) == NULL) { |
692 |
> |
fprintf(stderr, "%s: cannot open '%s' for output\n", |
693 |
> |
progname, ofspec); |
694 |
|
return(1); |
695 |
< |
} else { /* generating vector */ |
696 |
< |
CMATRIX *Vmat = cm_load(argv[1], 0, cvec->nrows, DTfromHeader); |
697 |
< |
CMATRIX *rvec = cm_multiply(Vmat, cvec); |
695 |
> |
} |
696 |
> |
ofspec = NULL; /* only need to open once */ |
697 |
> |
} |
698 |
> |
if (hasNumberFormat(argv[a])) { /* generating image(s) */ |
699 |
> |
if (ofspec == NULL) { |
700 |
> |
SET_FILE_BINARY(ofp); |
701 |
> |
newheader("RADIANCE", ofp); |
702 |
> |
printargs(argc, argv, ofp); |
703 |
> |
fputnow(ofp); |
704 |
> |
} |
705 |
> |
if (nsteps > 1) /* multiple output frames? */ |
706 |
> |
for (i = 0; i < nsteps; i++) { |
707 |
> |
CMATRIX *cvec = cm_column(cmtx, i); |
708 |
> |
if (ofspec != NULL) { |
709 |
> |
sprintf(fnbuf, ofspec, i+1); |
710 |
> |
if ((ofp = fopen(fnbuf, "wb")) == NULL) { |
711 |
> |
fprintf(stderr, |
712 |
> |
"%s: cannot open '%s' for output\n", |
713 |
> |
progname, fnbuf); |
714 |
> |
return(1); |
715 |
> |
} |
716 |
> |
newheader("RADIANCE", ofp); |
717 |
> |
printargs(argc, argv, ofp); |
718 |
> |
fputnow(ofp); |
719 |
> |
} |
720 |
> |
fprintf(ofp, "FRAME=%d\n", i+1); |
721 |
> |
if (!sum_images(argv[a], cvec, ofp)) |
722 |
> |
return(1); |
723 |
> |
if (ofspec != NULL) { |
724 |
> |
if (fclose(ofp) == EOF) { |
725 |
> |
fprintf(stderr, |
726 |
> |
"%s: error writing to '%s'\n", |
727 |
> |
progname, fnbuf); |
728 |
> |
return(1); |
729 |
> |
} |
730 |
> |
ofp = stdout; |
731 |
> |
} |
732 |
> |
cm_free(cvec); |
733 |
> |
} |
734 |
> |
else if (!sum_images(argv[a], cmtx, ofp)) |
735 |
> |
return(1); |
736 |
> |
} else { /* generating vector/matrix */ |
737 |
> |
CMATRIX *Vmat = cm_load(argv[a], 0, cmtx->nrows, DTfromHeader); |
738 |
> |
CMATRIX *rmtx = cm_multiply(Vmat, cmtx); |
739 |
|
cm_free(Vmat); |
740 |
< |
cm_print(rvec, stdout); |
741 |
< |
cm_free(rvec); |
740 |
> |
if (ofspec != NULL) /* multiple vector files? */ |
741 |
> |
for (i = 0; i < nsteps; i++) { |
742 |
> |
CMATRIX *rvec = cm_column(rmtx, i); |
743 |
> |
sprintf(fnbuf, ofspec, i+1); |
744 |
> |
if ((ofp = fopen(fnbuf, "w")) == NULL) { |
745 |
> |
fprintf(stderr, |
746 |
> |
"%s: cannot open '%s' for output\n", |
747 |
> |
progname, fnbuf); |
748 |
> |
return(1); |
749 |
> |
} |
750 |
> |
cm_print(rvec, ofp); |
751 |
> |
if (fclose(ofp) == EOF) { |
752 |
> |
fprintf(stderr, |
753 |
> |
"%s: error writing to '%s'\n", |
754 |
> |
progname, fnbuf); |
755 |
> |
return(1); |
756 |
> |
} |
757 |
> |
ofp = stdout; |
758 |
> |
cm_free(rvec); |
759 |
> |
} |
760 |
> |
else |
761 |
> |
cm_print(rmtx, ofp); |
762 |
> |
cm_free(rmtx); |
763 |
|
} |
764 |
< |
cm_free(cvec); /* final clean-up */ |
764 |
> |
if (fflush(ofp) == EOF) { /* final clean-up */ |
765 |
> |
fprintf(stderr, "%s: write error on output\n", progname); |
766 |
> |
return(1); |
767 |
> |
} |
768 |
> |
cm_free(cmtx); |
769 |
|
return(0); |
770 |
+ |
userr: |
771 |
+ |
fprintf(stderr, "Usage: %s [-n nsteps][-o ospec][-i{f|d}] DCspec [skyf]\n", |
772 |
+ |
progname); |
773 |
+ |
fprintf(stderr, " or: %s [-n nsteps][-o ospec][-i{f|d}] Vspec Tbsdf.xml Dmat.dat [skyf]\n", |
774 |
+ |
progname); |
775 |
+ |
return(1); |
776 |
|
} |