1 |
– |
/* Copyright (c) 1991 Regents of the University of California */ |
2 |
– |
|
1 |
|
#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
|
#endif |
6 |
– |
|
4 |
|
/* |
5 |
|
* Find glare sources in a scene or image. |
6 |
|
* |
9 |
|
|
10 |
|
#include "glare.h" |
11 |
|
|
12 |
< |
#define FEQ(a,b) ((a)-(b)<=FTINY&&(a)-(b)<=FTINY) |
12 |
> |
#define FEQ(a,b) ((a)-(b)<=FTINY&&(b)-(a)<=FTINY) |
13 |
|
#define VEQ(v1,v2) (FEQ((v1)[0],(v2)[0])&&FEQ((v1)[1],(v2)[1]) \ |
14 |
|
&&FEQ((v1)[2],(v2)[2])) |
15 |
|
|
16 |
< |
char *rtargv[32] = {"rtrace", "-h", "-ov", "-fff"}; |
17 |
< |
int rtargc = 4; |
16 |
> |
char *rtargv[64] = {"rtrace", "-h-", "-ov", "-fff", "-ld-", "-i-", "-I-"}; |
17 |
> |
int rtargc = 7; |
18 |
|
|
19 |
|
VIEW ourview = STDVIEW; /* our view */ |
20 |
|
VIEW pictview = STDVIEW; /* picture view */ |
39 |
|
long npixinvw; /* number of pixels in view */ |
40 |
|
long npixmiss; /* number of pixels missed */ |
41 |
|
|
42 |
+ |
static int angcmp(const void *ap1, const void *ap2); |
43 |
+ |
static void init(void); |
44 |
+ |
static void cleanup(void); |
45 |
+ |
static void printsources(void); |
46 |
+ |
static void printillum(void); |
47 |
|
|
48 |
< |
main(argc, argv) |
49 |
< |
int argc; |
50 |
< |
char *argv[]; |
48 |
> |
|
49 |
> |
|
50 |
> |
int |
51 |
> |
main( |
52 |
> |
int argc, |
53 |
> |
char *argv[] |
54 |
> |
) |
55 |
|
{ |
56 |
|
int combine = 1; |
57 |
|
int gotview = 0; |
61 |
|
progname = argv[0]; |
62 |
|
/* process options */ |
63 |
|
for (i = 1; i < argc && argv[i][0] == '-'; i++) { |
64 |
+ |
/* expand arguments */ |
65 |
+ |
while ((rval = expandarg(&argc, &argv, i)) > 0) |
66 |
+ |
; |
67 |
+ |
if (rval < 0) { |
68 |
+ |
fprintf(stderr, "%s: cannot expand '%s'\n", |
69 |
+ |
argv[0], argv[i]); |
70 |
+ |
exit(1); |
71 |
+ |
} |
72 |
|
rval = getviewopt(&ourview, argc-i, argv+i); |
73 |
|
if (rval >= 0) { |
74 |
|
i += rval; |
89 |
|
} |
90 |
|
if (argv[i][2] != 'f') |
91 |
|
goto userr; |
92 |
< |
rval = viewfile(argv[++i], &ourview, 0, 0); |
92 |
> |
rval = viewfile(argv[++i], &ourview, NULL); |
93 |
|
if (rval < 0) { |
94 |
|
fprintf(stderr, |
95 |
|
"%s: cannot open view file \"%s\"\n", |
119 |
|
combine = !combine; |
120 |
|
break; |
121 |
|
case 'd': |
122 |
+ |
rtargv[rtargc++] = argv[i]; |
123 |
+ |
if (argv[i][2] != 'v') |
124 |
+ |
rtargv[rtargc++] = argv[++i]; |
125 |
+ |
break; |
126 |
|
case 'l': |
127 |
+ |
if (argv[i][2] == 'd') |
128 |
+ |
break; |
129 |
+ |
/* FALL THROUGH */ |
130 |
+ |
case 's': |
131 |
+ |
case 'P': |
132 |
+ |
case 'n': |
133 |
|
rtargv[rtargc++] = argv[i]; |
134 |
|
rtargv[rtargc++] = argv[++i]; |
135 |
|
break; |
136 |
+ |
case 'w': |
137 |
+ |
case 'u': |
138 |
+ |
case 'b': |
139 |
+ |
rtargv[rtargc++] = argv[i]; |
140 |
+ |
break; |
141 |
|
case 'a': |
142 |
|
rtargv[rtargc++] = argv[i]; |
143 |
|
if (argv[i][2] == 'v') { |
146 |
|
} |
147 |
|
rtargv[rtargc++] = argv[++i]; |
148 |
|
break; |
149 |
+ |
case 'm': |
150 |
+ |
rtargv[rtargc++] = argv[i]; |
151 |
+ |
if ((argv[i][2] == 'e') | (argv[i][2] == 'a')) { |
152 |
+ |
rtargv[rtargc++] = argv[++i]; |
153 |
+ |
rtargv[rtargc++] = argv[++i]; |
154 |
+ |
} |
155 |
+ |
rtargv[rtargc++] = argv[++i]; |
156 |
+ |
break; |
157 |
|
default: |
158 |
|
goto userr; |
159 |
|
} |
167 |
|
} |
168 |
|
/* get view */ |
169 |
|
if (picture != NULL) { |
170 |
< |
rval = viewfile(picture, &pictview, 0, 0); |
170 |
> |
rval = viewfile(picture, &pictview, NULL); |
171 |
|
if (rval < 0) { |
172 |
|
fprintf(stderr, "%s: cannot open picture file \"%s\"\n", |
173 |
|
progname, picture); |
194 |
|
progname); |
195 |
|
exit(1); |
196 |
|
} |
197 |
< |
copystruct(&ourview, &pictview); |
197 |
> |
ourview = pictview; |
198 |
|
} else if (picture != NULL && !VEQ(ourview.vp, pictview.vp)) { |
199 |
|
fprintf(stderr, "%s: picture must have same viewpoint\n", |
200 |
|
progname); |
223 |
|
absorb_specks(); /* eliminate tiny sources */ |
224 |
|
cleanup(); /* tidy up */ |
225 |
|
/* print header */ |
226 |
+ |
newheader("RADIANCE", stdout); |
227 |
|
printargs(argc, argv, stdout); |
228 |
|
fputs(VIEWSTR, stdout); |
229 |
|
fprintview(&ourview, stdout); |
241 |
|
} |
242 |
|
|
243 |
|
|
244 |
< |
init() /* initialize global variables */ |
244 |
> |
static int |
245 |
> |
angcmp( /* compare two angles */ |
246 |
> |
const void *ap1, |
247 |
> |
const void *ap2 |
248 |
> |
) |
249 |
|
{ |
250 |
+ |
register int a1, a2; |
251 |
+ |
|
252 |
+ |
a1 = *(ANGLE *)ap1; |
253 |
+ |
a2 = *(ANGLE *)ap2; |
254 |
+ |
if (a1 == a2) { |
255 |
+ |
fprintf(stderr, "%s: duplicate glare angle (%d)\n", |
256 |
+ |
progname, a1); |
257 |
+ |
exit(1); |
258 |
+ |
} |
259 |
+ |
return(a1-a2); |
260 |
+ |
} |
261 |
+ |
|
262 |
+ |
|
263 |
+ |
static void |
264 |
+ |
init(void) /* initialize global variables */ |
265 |
+ |
{ |
266 |
|
double d; |
267 |
|
register int i; |
268 |
|
|
272 |
|
/* set direction vectors */ |
273 |
|
for (i = 0; glarang[i] != AEND; i++) |
274 |
|
; |
275 |
< |
if (i > 0 && (glarang[0] <= 0 || glarang[i-1] >= 180)) { |
276 |
< |
fprintf(stderr, "%s: glare angles must be between 1 and 179\n", |
275 |
> |
qsort(glarang, i, sizeof(ANGLE), angcmp); |
276 |
> |
if (i > 0 && (glarang[0] <= 0 || glarang[i-1] > 180)) { |
277 |
> |
fprintf(stderr, "%s: glare angles must be between 1 and 180\n", |
278 |
|
progname); |
279 |
|
exit(1); |
280 |
|
} |
292 |
|
if (indirect == NULL) |
293 |
|
memerr("indirect illuminances"); |
294 |
|
npixinvw = npixmiss = 0L; |
295 |
< |
copystruct(&leftview, &ourview); |
296 |
< |
copystruct(&rightview, &ourview); |
295 |
> |
leftview = ourview; |
296 |
> |
rightview = ourview; |
297 |
|
spinvector(leftview.vdir, ourview.vdir, ourview.vup, maxtheta); |
298 |
|
spinvector(rightview.vdir, ourview.vdir, ourview.vup, -maxtheta); |
299 |
|
setview(&leftview); |
337 |
|
} |
338 |
|
|
339 |
|
|
340 |
< |
cleanup() /* close files, wait for children */ |
340 |
> |
static void |
341 |
> |
cleanup(void) /* close files, wait for children */ |
342 |
|
{ |
343 |
|
if (verbose) |
344 |
|
fprintf(stderr, "%s: cleaning up... \n", progname); |
347 |
|
if (octree != NULL) |
348 |
|
done_rtrace(); |
349 |
|
if (npixinvw < 100*npixmiss) |
350 |
< |
fprintf(stderr, "%s: warning -- missing %ld%% of samples\n", |
351 |
< |
progname, 100L*npixmiss/npixinvw); |
350 |
> |
fprintf(stderr, "%s: warning -- missing %d%% of samples\n", |
351 |
> |
progname, (int)(100L*npixmiss/npixinvw)); |
352 |
|
} |
353 |
|
|
354 |
|
|
355 |
< |
compdir(vd, x, y) /* compute direction for x,y */ |
356 |
< |
FVECT vd; |
357 |
< |
int x, y; |
355 |
> |
extern int |
356 |
> |
compdir( /* compute direction for x,y */ |
357 |
> |
FVECT vd, |
358 |
> |
int x, |
359 |
> |
int y |
360 |
> |
) |
361 |
|
{ |
362 |
|
int hl; |
363 |
|
FVECT org; /* dummy variable */ |
364 |
|
|
365 |
|
hl = hlim(y); |
366 |
< |
if (x <= -hl) /* left region */ |
366 |
> |
if (x <= -hl) { /* left region */ |
367 |
> |
if (x <= -hl-sampdens) |
368 |
> |
return(-1); |
369 |
|
return(viewray(org, vd, &leftview, |
370 |
|
(double)(x+hl)/(2*sampdens)+.5, |
371 |
|
(double)y/(2*sampdens)+.5)); |
372 |
< |
if (x >= hl) /* right region */ |
372 |
> |
} |
373 |
> |
if (x >= hl) { /* right region */ |
374 |
> |
if (x >= hl+sampdens) |
375 |
> |
return(-1); |
376 |
|
return(viewray(org, vd, &rightview, |
377 |
|
(double)(x-hl)/(2*sampdens)+.5, |
378 |
|
(double)y/(2*sampdens)+.5)); |
379 |
+ |
} |
380 |
|
/* central region */ |
381 |
|
if (viewray(org, vd, &ourview, .5, (double)y/(2*sampdens)+.5) < 0) |
382 |
|
return(-1); |
385 |
|
} |
386 |
|
|
387 |
|
|
388 |
< |
double |
389 |
< |
pixsize(x, y) /* return the solid angle of pixel at (x,y) */ |
390 |
< |
int x, y; |
388 |
> |
extern double |
389 |
> |
pixsize( /* return the solid angle of pixel at (x,y) */ |
390 |
> |
int x, |
391 |
> |
int y |
392 |
> |
) |
393 |
|
{ |
394 |
|
register int hl, xo; |
395 |
|
double disc; |
401 |
|
xo = x-hl; |
402 |
|
else |
403 |
|
xo = 0; |
404 |
< |
disc = 1. - (double)(xo*xo + y*y)/(sampdens*sampdens); |
405 |
< |
if (disc <= FTINY) |
404 |
> |
disc = 1. - (double)((long)xo*xo + (long)y*y)/((long)sampdens*sampdens); |
405 |
> |
if (disc <= FTINY*FTINY) |
406 |
|
return(0.); |
407 |
|
return(1./(sampdens*sampdens*sqrt(disc))); |
408 |
|
} |
409 |
|
|
410 |
|
|
411 |
< |
memerr(s) /* malloc failure */ |
412 |
< |
char *s; |
411 |
> |
extern void |
412 |
> |
memerr( /* malloc failure */ |
413 |
> |
char *s |
414 |
> |
) |
415 |
|
{ |
416 |
|
fprintf(stderr, "%s: out of memory for %s\n", progname, s); |
417 |
|
exit(1); |
418 |
|
} |
419 |
|
|
420 |
|
|
421 |
< |
printsources() /* print out glare sources */ |
421 |
> |
static void |
422 |
> |
printsources(void) /* print out glare sources */ |
423 |
|
{ |
424 |
|
register struct source *sp; |
425 |
|
|
432 |
|
} |
433 |
|
|
434 |
|
|
435 |
< |
printillum() /* print out indirect illuminances */ |
435 |
> |
static void |
436 |
> |
printillum(void) /* print out indirect illuminances */ |
437 |
|
{ |
438 |
|
register int i; |
439 |
|
|