1 |
/* |
2 |
* Compute time-step glare using imageless DGP calculation method. |
3 |
* |
4 |
* N. Jones |
5 |
*/ |
6 |
|
7 |
/* |
8 |
* Copyright (c) 2017-2019 Nathaniel Jones |
9 |
* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
26 |
* SOFTWARE. |
27 |
*/ |
28 |
|
29 |
#include <ctype.h> |
30 |
#include "platform.h" |
31 |
#include "standard.h" |
32 |
#include "cmatrix.h" |
33 |
#include "resolu.h" |
34 |
#include "cmglare.h" |
35 |
|
36 |
char *progname; /* global argv[0] */ |
37 |
|
38 |
/* Sum together a set of images and write result to fout */ |
39 |
static int |
40 |
sum_images(const char *fspec, const CMATRIX *cv, FILE *fout) |
41 |
{ |
42 |
int myDT = DTfromHeader; |
43 |
COLR *scanline = NULL; |
44 |
CMATRIX *pmat = NULL; |
45 |
int myXR=0, myYR=0; |
46 |
int i, y; |
47 |
|
48 |
if (cv->ncols != 1) |
49 |
error(INTERNAL, "expected vector in sum_images()"); |
50 |
for (i = 0; i < cv->nrows; i++) { |
51 |
const COLORV *scv = cv_lval(cv,i); |
52 |
int flat_file = 0; |
53 |
char fname[1024]; |
54 |
FILE *fp; |
55 |
long data_start; |
56 |
int dt, xr, yr; |
57 |
COLORV *psp; |
58 |
char *err; |
59 |
/* check for zero */ |
60 |
if ((scv[RED] == 0) & (scv[GRN] == 0) & (scv[BLU] == 0) && |
61 |
(myDT != DTfromHeader) | (i < cv->nrows-1)) |
62 |
continue; |
63 |
/* open next picture */ |
64 |
sprintf(fname, fspec, i); |
65 |
if ((fp = fopen(fname, "rb")) == NULL) { |
66 |
sprintf(errmsg, "cannot open picture '%s'", fname); |
67 |
error(SYSTEM, errmsg); |
68 |
} |
69 |
dt = DTfromHeader; |
70 |
if ((err = cm_getheader(&dt, NULL, NULL, NULL, NULL, fp)) != NULL) |
71 |
error(USER, err); |
72 |
if ((dt != DTrgbe) & (dt != DTxyze) || |
73 |
!fscnresolu(&xr, &yr, fp)) { |
74 |
sprintf(errmsg, "file '%s' not a picture", fname); |
75 |
error(USER, errmsg); |
76 |
} |
77 |
if (myDT == DTfromHeader) { /* on first one */ |
78 |
myDT = dt; |
79 |
myXR = xr; myYR = yr; |
80 |
scanline = (COLR *)malloc(sizeof(COLR)*myXR); |
81 |
if (scanline == NULL) |
82 |
error(SYSTEM, "out of memory in sum_images()"); |
83 |
pmat = cm_alloc(myYR, myXR); |
84 |
memset(pmat->cmem, 0, sizeof(COLOR)*myXR*myYR); |
85 |
/* finish header */ |
86 |
fputformat(cm_fmt_id[myDT], fout); |
87 |
fputc('\n', fout); |
88 |
fflush(fout); |
89 |
} else if ((dt != myDT) | (xr != myXR) | (yr != myYR)) { |
90 |
sprintf(errmsg, "picture '%s' format/size mismatch", |
91 |
fname); |
92 |
error(USER, errmsg); |
93 |
} |
94 |
/* flat file check */ |
95 |
if ((data_start = ftell(fp)) > 0 && fseek(fp, 0L, SEEK_END) == 0) { |
96 |
flat_file = (ftell(fp) == data_start + sizeof(COLR)*xr*yr); |
97 |
if (fseek(fp, data_start, SEEK_SET) < 0) { |
98 |
sprintf(errmsg, "cannot seek on picture '%s'", fname); |
99 |
error(SYSTEM, errmsg); |
100 |
} |
101 |
} |
102 |
psp = pmat->cmem; |
103 |
for (y = 0; y < yr; y++) { /* read it in */ |
104 |
COLOR col; |
105 |
int x; |
106 |
if (flat_file ? getbinary(scanline, sizeof(COLR), xr, fp) != xr : |
107 |
freadcolrs(scanline, xr, fp) < 0) { |
108 |
sprintf(errmsg, "error reading picture '%s'", |
109 |
fname); |
110 |
error(SYSTEM, errmsg); |
111 |
} |
112 |
/* sum in scanline */ |
113 |
for (x = 0; x < xr; x++, psp += 3) { |
114 |
if (!scanline[x][EXP]) |
115 |
continue; /* skip zeroes */ |
116 |
colr_color(col, scanline[x]); |
117 |
multcolor(col, scv); |
118 |
addcolor(psp, col); |
119 |
} |
120 |
} |
121 |
fclose(fp); /* done this picture */ |
122 |
} |
123 |
free(scanline); |
124 |
i = cm_write(pmat, myDT, fout); /* write picture */ |
125 |
cm_free(pmat); /* free data */ |
126 |
return(i); |
127 |
} |
128 |
|
129 |
/* check to see if a string contains a %d or %o specification */ |
130 |
static int |
131 |
hasNumberFormat(const char *s) |
132 |
{ |
133 |
if (s == NULL) |
134 |
return(0); |
135 |
|
136 |
while (*s) { |
137 |
while (*s != '%') |
138 |
if (!*s++) |
139 |
return(0); |
140 |
if (*++s == '%') { /* ignore "%%" */ |
141 |
++s; |
142 |
continue; |
143 |
} |
144 |
while (isdigit(*s)) /* field length */ |
145 |
++s; |
146 |
/* field we'll use? */ |
147 |
if ((*s == 'd') | (*s == 'i') | (*s == 'o') | |
148 |
(*s == 'x') | (*s == 'X')) |
149 |
return(1); |
150 |
} |
151 |
return(0); /* didn't find one */ |
152 |
} |
153 |
|
154 |
int |
155 |
main(int argc, char *argv[]) |
156 |
{ |
157 |
int skyfmt = DTfromHeader; |
158 |
int outfmt = DTascii; |
159 |
int headout = 1; |
160 |
int nsteps = 0; |
161 |
char *ofspec = NULL; |
162 |
FILE *ofp = stdout; |
163 |
CMATRIX *cmtx; /* component vector/matrix result */ |
164 |
char fnbuf[256]; |
165 |
int a, i; |
166 |
#ifdef DC_GLARE |
167 |
char *direct_path = NULL; |
168 |
char *schedule_path = NULL; |
169 |
int *occupancy = NULL; |
170 |
int start_hour = 0; |
171 |
int end_hour = 24; |
172 |
double dgp_limit = -1; |
173 |
double dgp_threshold = 2000; |
174 |
char *view_path = NULL; |
175 |
FILE *fp; |
176 |
float *dgp_values = NULL; |
177 |
FVECT vdir, vup; |
178 |
FVECT *views = NULL; |
179 |
int viewfmt = DTascii; |
180 |
|
181 |
vdir[0] = vdir[1] = vdir[2] = vup[0] = vup[1] = 0; |
182 |
vup[2] = 1; |
183 |
|
184 |
clock_t timer = clock(); |
185 |
#endif /* DC_GLARE */ |
186 |
|
187 |
progname = argv[0]; |
188 |
/* get options */ |
189 |
for (a = 1; a < argc && argv[a][0] == '-'; a++) |
190 |
switch (argv[a][1]) { |
191 |
case 'n': |
192 |
nsteps = atoi(argv[++a]); |
193 |
if (nsteps < 0) |
194 |
goto userr; |
195 |
skyfmt = nsteps ? DTascii : DTfromHeader; |
196 |
break; |
197 |
case 'h': |
198 |
headout = !headout; |
199 |
break; |
200 |
case 'i': |
201 |
switch (argv[a][2]) { |
202 |
case 'f': |
203 |
skyfmt = DTfloat; |
204 |
break; |
205 |
case 'd': |
206 |
skyfmt = DTdouble; |
207 |
break; |
208 |
case 'a': |
209 |
skyfmt = DTascii; |
210 |
break; |
211 |
default: |
212 |
goto userr; |
213 |
} |
214 |
break; |
215 |
case 'o': |
216 |
switch (argv[a][2]) { |
217 |
#ifndef DC_GLARE |
218 |
case '\0': /* output specification (not format) */ |
219 |
ofspec = argv[++a]; |
220 |
break; |
221 |
#endif /* DC_GLARE */ |
222 |
case 'f': |
223 |
outfmt = DTfloat; |
224 |
break; |
225 |
case 'd': |
226 |
outfmt = DTdouble; |
227 |
break; |
228 |
case 'a': |
229 |
outfmt = DTascii; |
230 |
break; |
231 |
default: |
232 |
goto userr; |
233 |
} |
234 |
break; |
235 |
#ifdef DC_GLARE |
236 |
case 's': |
237 |
switch (argv[a][2]) { |
238 |
case 'f': /* occupancy schedule file */ |
239 |
schedule_path = argv[++a]; |
240 |
break; |
241 |
case 's': /* occupancy start hour */ |
242 |
start_hour = atoi(argv[++a]); |
243 |
break; |
244 |
case 'e': /* occupancy end hour */ |
245 |
end_hour = atoi(argv[++a]); |
246 |
break; |
247 |
default: |
248 |
goto userr; |
249 |
} |
250 |
break; |
251 |
case 'l': /* perceptible glare threshold */ |
252 |
dgp_limit = atof(argv[++a]); |
253 |
break; |
254 |
case 'b': /* luminance threshold */ |
255 |
dgp_threshold = atof(argv[++a]); |
256 |
break; |
257 |
case 'v': |
258 |
switch (argv[a][2]) { |
259 |
case 'd': /* forward */ |
260 |
//check(3, "fff"); |
261 |
vdir[0] = atof(argv[++a]); |
262 |
vdir[1] = atof(argv[++a]); |
263 |
vdir[2] = atof(argv[++a]); |
264 |
if (normalize(vdir) == 0.0) goto userr; |
265 |
break; |
266 |
case 'u': /* up */ |
267 |
//check(3, "fff"); |
268 |
vup[0] = atof(argv[++a]); |
269 |
vup[1] = atof(argv[++a]); |
270 |
vup[2] = atof(argv[++a]); |
271 |
if (normalize(vup) == 0.0) goto userr; |
272 |
break; |
273 |
case 'f': /* view directions file */ |
274 |
//check(2, "s"); |
275 |
view_path = argv[++a]; |
276 |
break; |
277 |
case 'i': |
278 |
switch (argv[a][3]) { |
279 |
case 'f': |
280 |
viewfmt = DTfloat; |
281 |
break; |
282 |
case 'd': |
283 |
viewfmt = DTdouble; |
284 |
break; |
285 |
case 'a': |
286 |
viewfmt = DTascii; |
287 |
break; |
288 |
default: |
289 |
goto userr; |
290 |
} |
291 |
default: |
292 |
goto userr; |
293 |
} |
294 |
break; |
295 |
#endif /* DC_GLARE */ |
296 |
default: |
297 |
goto userr; |
298 |
} |
299 |
#ifdef DC_GLARE |
300 |
if ((argc-a < 2) | (argc-a > 5)) |
301 |
goto userr; |
302 |
/* single bounce daylight coefficients file */ |
303 |
direct_path = argv[a++]; |
304 |
#else |
305 |
if ((argc-a < 1) | (argc-a > 4)) |
306 |
goto userr; |
307 |
#endif /* DC_GLARE */ |
308 |
|
309 |
if (argc-a > 2) { /* VTDs expression */ |
310 |
CMATRIX *smtx, *Dmat, *Tmat, *imtx; |
311 |
const char *ccp; |
312 |
/* get sky vector/matrix */ |
313 |
smtx = cm_load(argv[a+3], 0, nsteps, skyfmt); |
314 |
nsteps = smtx->ncols; |
315 |
/* load BSDF */ |
316 |
if (argv[a+1][0] != '!' && |
317 |
(ccp = strrchr(argv[a+1], '.')) != NULL && |
318 |
!strcasecmp(ccp+1, "XML")) |
319 |
Tmat = cm_loadBTDF(argv[a+1]); |
320 |
else |
321 |
Tmat = cm_load(argv[a+1], 0, 0, DTfromHeader); |
322 |
/* load Daylight matrix */ |
323 |
Dmat = cm_load(argv[a+2], Tmat->ncols, |
324 |
smtx->nrows, DTfromHeader); |
325 |
/* multiply vector through */ |
326 |
imtx = cm_multiply(Dmat, smtx); |
327 |
cm_free(Dmat); cm_free(smtx); |
328 |
cmtx = cm_multiply(Tmat, imtx); |
329 |
cm_free(Tmat); |
330 |
cm_free(imtx); |
331 |
} else { /* sky vector/matrix only */ |
332 |
//TIMER(timer, "read args"); |
333 |
cmtx = cm_load(argv[a+1], 0, nsteps, skyfmt); |
334 |
nsteps = cmtx->ncols; |
335 |
//TIMER(timer, "load sky matrix"); |
336 |
} |
337 |
/* prepare output stream */ |
338 |
if ((ofspec != NULL) & (nsteps == 1) && hasNumberFormat(ofspec)) { |
339 |
sprintf(fnbuf, ofspec, 1); |
340 |
ofspec = fnbuf; |
341 |
} |
342 |
if (ofspec != NULL && !hasNumberFormat(ofspec)) { |
343 |
if ((ofp = fopen(ofspec, "w")) == NULL) { |
344 |
fprintf(stderr, "%s: cannot open '%s' for output\n", |
345 |
progname, ofspec); |
346 |
return(1); |
347 |
} |
348 |
ofspec = NULL; /* only need to open once */ |
349 |
} |
350 |
if (hasNumberFormat(argv[a])) { /* generating image(s) */ |
351 |
if (ofspec == NULL) { |
352 |
SET_FILE_BINARY(ofp); |
353 |
newheader("RADIANCE", ofp); |
354 |
printargs(argc, argv, ofp); |
355 |
fputnow(ofp); |
356 |
} |
357 |
if (nsteps > 1) /* multiple output frames? */ |
358 |
for (i = 0; i < nsteps; i++) { |
359 |
CMATRIX *cvec = cm_column(cmtx, i); |
360 |
if (ofspec != NULL) { |
361 |
sprintf(fnbuf, ofspec, i); |
362 |
if ((ofp = fopen(fnbuf, "wb")) == NULL) { |
363 |
fprintf(stderr, |
364 |
"%s: cannot open '%s' for output\n", |
365 |
progname, fnbuf); |
366 |
return(1); |
367 |
} |
368 |
newheader("RADIANCE", ofp); |
369 |
printargs(argc, argv, ofp); |
370 |
fputnow(ofp); |
371 |
} |
372 |
fprintf(ofp, "FRAME=%d\n", i); |
373 |
if (!sum_images(argv[a], cvec, ofp)) |
374 |
return(1); |
375 |
if (ofspec != NULL) { |
376 |
if (fclose(ofp) == EOF) { |
377 |
fprintf(stderr, |
378 |
"%s: error writing to '%s'\n", |
379 |
progname, fnbuf); |
380 |
return(1); |
381 |
} |
382 |
ofp = stdout; |
383 |
} |
384 |
cm_free(cvec); |
385 |
} |
386 |
else if (!sum_images(argv[a], cmtx, ofp)) |
387 |
return(1); |
388 |
} else { /* generating vector/matrix */ |
389 |
CMATRIX *Vmat = cm_load(argv[a], 0, cmtx->nrows, DTfromHeader); |
390 |
//TIMER(timer, "load view matrix"); |
391 |
CMATRIX *rmtx = cm_multiply(Vmat, cmtx); |
392 |
//TIMER(timer, "multiply"); |
393 |
cm_free(Vmat); |
394 |
#ifdef DC_GLARE |
395 |
if (direct_path) { /* Do glare autonomy calculation */ |
396 |
/* Load occupancy schedule */ |
397 |
occupancy = (int*)malloc(nsteps * sizeof(int)); |
398 |
if (!occupancy) { |
399 |
fprintf(stderr, |
400 |
"%s: out of memory for schedule\n", |
401 |
progname); |
402 |
return(1); |
403 |
} |
404 |
if (schedule_path) { |
405 |
if ((fp = fopen(schedule_path, "r")) == NULL) { |
406 |
fprintf(stderr, |
407 |
"%s: cannot open input file \"%s\"\n", |
408 |
progname, schedule_path); |
409 |
return(1); |
410 |
} |
411 |
if (cm_load_schedule(nsteps, occupancy, fp) < 0) return(1); |
412 |
} |
413 |
else { |
414 |
for (i = 0; i < nsteps; i++) { |
415 |
/* Assume hourly spacing */ |
416 |
int hour = i % 24; |
417 |
occupancy[i] = ((hour >= start_hour) & (hour < end_hour)); |
418 |
} |
419 |
} |
420 |
//TIMER(timer, "load occupancy schedule"); |
421 |
|
422 |
/* Load view directions */ |
423 |
if (view_path == NULL) { |
424 |
if (vdir[0] == 0.0f && vdir[1] == 0.0f && vdir[2] == 0.0f) { |
425 |
fprintf(stderr, |
426 |
"%s: missing view direction\n", |
427 |
progname); |
428 |
return(1); |
429 |
} |
430 |
} |
431 |
else { |
432 |
if ((fp = fopen(view_path, "r")) == NULL) { |
433 |
fprintf(stderr, |
434 |
"%s: cannot open input file \"%s\"\n", |
435 |
progname, view_path); |
436 |
return(1); |
437 |
} |
438 |
if (viewfmt != DTascii) |
439 |
SET_FILE_BINARY(fp); |
440 |
views = cm_load_views(rmtx->nrows, viewfmt, fp); |
441 |
if (!views) return(1); |
442 |
//TIMER(timer, "load views"); |
443 |
} |
444 |
|
445 |
/* Calculate glare values */ |
446 |
Vmat = cm_load(direct_path, 0, cmtx->nrows, DTfromHeader); |
447 |
//TIMER(timer, "load direct matrix"); |
448 |
dgp_values = cm_glare(Vmat, rmtx, cmtx, occupancy, dgp_limit, dgp_threshold, views, vdir, vup); |
449 |
//TIMER(timer, "calculate dgp"); |
450 |
free(views); |
451 |
cm_free(Vmat); |
452 |
|
453 |
/* Check successful calculation */ |
454 |
if (!dgp_values) return(1); |
455 |
} |
456 |
#endif /* DC_GLARE */ |
457 |
if (ofspec != NULL) { /* multiple vector files? */ |
458 |
const char *wtype = (outfmt==DTascii) ? "w" : "wb"; |
459 |
for (i = 0; i < nsteps; i++) { |
460 |
CMATRIX *rvec = cm_column(rmtx, i); |
461 |
sprintf(fnbuf, ofspec, i); |
462 |
if ((ofp = fopen(fnbuf, wtype)) == NULL) { |
463 |
fprintf(stderr, |
464 |
"%s: cannot open '%s' for output\n", |
465 |
progname, fnbuf); |
466 |
return(1); |
467 |
} |
468 |
#ifdef getc_unlocked |
469 |
flockfile(ofp); |
470 |
#endif |
471 |
if (headout) { /* header output */ |
472 |
newheader("RADIANCE", ofp); |
473 |
printargs(argc, argv, ofp); |
474 |
fputnow(ofp); |
475 |
fprintf(ofp, "FRAME=%d\n", i); |
476 |
fprintf(ofp, "NROWS=%d\n", rvec->nrows); |
477 |
fputs("NCOLS=1\nNCOMP=3\n", ofp); |
478 |
if ((outfmt == DTfloat) | (outfmt == DTdouble)) |
479 |
fputendian(ofp); |
480 |
fputformat(cm_fmt_id[outfmt], ofp); |
481 |
fputc('\n', ofp); |
482 |
} |
483 |
cm_write(rvec, outfmt, ofp); |
484 |
if (fclose(ofp) == EOF) { |
485 |
fprintf(stderr, |
486 |
"%s: error writing to '%s'\n", |
487 |
progname, fnbuf); |
488 |
return(1); |
489 |
} |
490 |
ofp = stdout; |
491 |
cm_free(rvec); |
492 |
} |
493 |
} else { |
494 |
#ifdef getc_unlocked |
495 |
flockfile(ofp); |
496 |
#endif |
497 |
if (outfmt != DTascii) |
498 |
SET_FILE_BINARY(ofp); |
499 |
if (headout) { /* header output */ |
500 |
newheader("RADIANCE", ofp); |
501 |
printargs(argc, argv, ofp); |
502 |
fputnow(ofp); |
503 |
fprintf(ofp, "NROWS=%d\n", rmtx->nrows); |
504 |
#ifdef DC_GLARE |
505 |
fprintf(ofp, "NCOLS=%d\n", (!dgp_values || dgp_limit < 0) ? rmtx->ncols : 1); |
506 |
fprintf(ofp, "NCOMP=%d\n", dgp_values ? 1 : 3); |
507 |
#else |
508 |
fprintf(ofp, "NCOLS=%d\n", rmtx->ncols); |
509 |
fputs("NCOMP=3\n", ofp); |
510 |
#endif /* DC_GLARE */ |
511 |
if ((outfmt == DTfloat) | (outfmt == DTdouble)) |
512 |
fputendian(ofp); |
513 |
fputformat(cm_fmt_id[outfmt], ofp); |
514 |
fputc('\n', ofp); |
515 |
} |
516 |
#ifdef DC_GLARE |
517 |
if (dgp_values) { /* Write glare autonomy */ |
518 |
cm_write_glare(dgp_values, rmtx->nrows, dgp_limit < 0 ? rmtx->ncols : 1, outfmt, ofp); |
519 |
free(dgp_values); |
520 |
//TIMER(timer, "write"); |
521 |
} |
522 |
else |
523 |
#endif /* DC_GLARE */ |
524 |
cm_write(rmtx, outfmt, ofp); |
525 |
} |
526 |
cm_free(rmtx); |
527 |
} |
528 |
if (fflush(ofp) == EOF) { /* final clean-up */ |
529 |
fprintf(stderr, "%s: write error on output\n", progname); |
530 |
return(1); |
531 |
} |
532 |
cm_free(cmtx); |
533 |
return(0); |
534 |
userr: |
535 |
#ifdef DC_GLARE |
536 |
fprintf(stderr, "Usage: %s [-n nsteps][-i{f|d|h}][-o{f|d}][-l limit][-b threshold][{-sf occupancy|-ss start -se end}]{-vf views [-vi{f|d}]|-vd x y z}[-vu x y z] DCdirect DCtotal [skyf]\n", |
537 |
progname); |
538 |
fprintf(stderr, " or: %s [-n nsteps][-i{f|d|h}][-o{f|d}][-l limit][-b threshold][{-sf occupancy|-ss start -se end}]{-vf views [-vi{f|d}]|-vd x y z}[-vu x y z] DCdirect Vspec Tbsdf Dmat.dat [skyf]\n", |
539 |
progname); |
540 |
#else |
541 |
fprintf(stderr, "Usage: %s [-n nsteps][-o ospec][-i{f|d|h}][-o{f|d}] DCspec [skyf]\n", |
542 |
progname); |
543 |
fprintf(stderr, " or: %s [-n nsteps][-o ospec][-i{f|d|h}][-o{f|d}] Vspec Tbsdf Dmat.dat [skyf]\n", |
544 |
progname); |
545 |
#endif /* DC_GLARE */ |
546 |
return(1); |
547 |
} |