16 |
|
struct source *curlist = NULL; /* current source list */ |
17 |
|
struct source *donelist = NULL; /* finished sources */ |
18 |
|
|
19 |
– |
double threshold; /* glare threshold */ |
19 |
|
|
21 |
– |
|
20 |
|
struct srcspan * |
21 |
|
newspan(l, r, v, sb) /* allocate a new source span */ |
22 |
|
int l, r, v; |
48 |
|
if (spanbr == NULL) |
49 |
|
memerr("view span brightness buffer"); |
50 |
|
for (v = vsize; v >= -vsize; v--) { |
51 |
+ |
close_sources(v); |
52 |
|
getviewspan(v, spanbr); |
53 |
|
left = hsize + 1; |
54 |
< |
for (h = -hsize; h <= hsize; h++) |
54 |
> |
for (h = -hsize; h <= hsize; h++) { |
55 |
|
if (spanbr[h+hsize] < 0.0) { /* off view */ |
56 |
|
if (left < h) { |
57 |
< |
addsrcspan(newspan(left,h-1,v,spanbr)); |
57 |
> |
addsrcspan(newspan(left,h,v,spanbr)); |
58 |
|
left = hsize + 1; |
59 |
|
} |
60 |
|
continue; |
61 |
|
} |
62 |
|
if (spanbr[h+hsize] > threshold) { /* in source */ |
63 |
< |
if (left >= h) |
63 |
> |
if (left > h) |
64 |
|
left = h; |
65 |
|
} else { /* out of source */ |
66 |
|
if (left < h) { |
67 |
< |
addsrcspan(newspan(left,h-1,v,spanbr)); |
67 |
> |
addsrcspan(newspan(left,h,v,spanbr)); |
68 |
|
left = hsize + 1; |
69 |
|
} |
70 |
|
addindirect(h, spanbr[h+hsize]); |
71 |
|
} |
72 |
+ |
} |
73 |
|
if (left < h) |
74 |
< |
addsrcspan(newspan(left,h-1,v,spanbr)); |
75 |
< |
close_sources(v); |
74 |
> |
addsrcspan(newspan(left,h,v,spanbr)); |
75 |
|
} |
76 |
|
close_allsrcs(); |
77 |
|
free((char *)spanbr); |
86 |
|
register int i; |
87 |
|
|
88 |
|
if (h <= -hlim) { /* left region */ |
89 |
< |
d = (double)(h+hlim)/SAMPDENS; |
89 |
> |
d = (double)(h+hlim)/sampdens; |
90 |
|
if (d <= -1.0+FTINY) |
91 |
|
return; |
92 |
|
tanb = d/sqrt(1.0-d*d); |
100 |
|
return; |
101 |
|
} |
102 |
|
if (h >= hlim) { /* right region */ |
103 |
< |
d = (double)(h-hlim)/SAMPDENS; |
103 |
> |
d = (double)(h-hlim)/sampdens; |
104 |
|
if (d >= 1.0-FTINY) |
105 |
|
return; |
106 |
|
tanb = d/sqrt(1.0-d*d); |
151 |
|
fprintf(stderr, "%s: threshold zero!\n", progname); |
152 |
|
exit(1); |
153 |
|
} |
154 |
< |
if (verbose) |
154 |
> |
if (verbose) { |
155 |
> |
pict_stats(); |
156 |
|
fprintf(stderr, |
157 |
|
"%s: threshold set to %f cd/m2 from %d samples\n", |
158 |
|
progname, threshold, nsamps); |
159 |
+ |
} |
160 |
|
} |
161 |
|
|
162 |
|
|
165 |
|
{ |
166 |
|
struct source *last, *cs, *this; |
167 |
|
register struct srcspan *ss; |
167 |
– |
register int res; |
168 |
|
|
169 |
|
cs = NULL; |
170 |
|
for (this = curlist; this != NULL; this = this->next) { |
178 |
|
mergesource(cs, this); |
179 |
|
last->next = this->next; |
180 |
|
free((char *)this); |
181 |
+ |
this = last; |
182 |
|
} |
183 |
|
break; |
184 |
|
} |
244 |
|
|
245 |
|
close_allsrcs() /* done with everything */ |
246 |
|
{ |
247 |
< |
register struct source *this; |
247 |
> |
register struct source *this, *next; |
248 |
|
|
249 |
< |
for (this = curlist; this != NULL; this = this->next) |
249 |
> |
this = curlist; |
250 |
> |
while (this != NULL) { |
251 |
> |
next = this->next; |
252 |
|
donesource(this); |
253 |
+ |
this = next; |
254 |
+ |
} |
255 |
|
curlist = NULL; |
256 |
|
} |
257 |
|
|
265 |
|
double d; |
266 |
|
|
267 |
|
sp->dom = 0.0; |
268 |
< |
sp->dir[0] = sp->dir[1] = sp->dir[1] = 0.0; |
268 |
> |
sp->dir[0] = sp->dir[1] = sp->dir[2] = 0.0; |
269 |
|
sp->brt = 0.0; |
270 |
+ |
n = 0; |
271 |
|
for (ss = sp->first; ss != NULL; ss = ss->next) { |
272 |
|
sp->brt += ss->brsum; |
273 |
|
n += ss->r - ss->l; |
274 |
< |
compdir(dright, ss->r, ss->v); |
275 |
< |
for (h = ss->r-1; h >= ss->l; h--) { |
276 |
< |
compdir(dthis, h, ss->v); |
277 |
< |
d = dist2(dthis, dright); |
278 |
< |
fvsum(sp->dir, sp->dir, dthis, d); |
279 |
< |
sp->dom += d; |
280 |
< |
VCOPY(dright, dthis); |
281 |
< |
} |
274 |
> |
if (compdir(dright, ss->r, ss->v) < 0) |
275 |
> |
compdir(dright, ss->r-2, ss->v); |
276 |
> |
for (h = ss->r-1; h >= ss->l; h--) |
277 |
> |
if (compdir(dthis, h, ss->v) == 0) { |
278 |
> |
d = dist2(dthis, dright); |
279 |
> |
fvsum(sp->dir, sp->dir, dthis, d); |
280 |
> |
sp->dom += d; |
281 |
> |
VCOPY(dright, dthis); |
282 |
> |
} |
283 |
|
free((char *)ss); |
284 |
|
} |
285 |
|
sp->first = NULL; |
286 |
|
sp->brt /= (double)n; |
287 |
< |
sp->dir[0] /= sp->dom; |
281 |
< |
sp->dir[1] /= sp->dom; |
282 |
< |
sp->dir[2] /= sp->dom; |
287 |
> |
normalize(sp->dir); |
288 |
|
sp->next = donelist; |
289 |
|
donelist = sp; |
290 |
|
if (verbose) |
291 |
|
fprintf(stderr, |
292 |
< |
"%s: found source at (%f,%f,%f), solid angle %f, brightness %f\n", |
293 |
< |
progname, sp->dir[0], sp->dir[1], sp->dir[2], sp->brt); |
292 |
> |
"%s: found source at (%.3f,%.3f,%.3f), dw %.5f, br %.1f (%d samps)\n", |
293 |
> |
progname, sp->dir[0], sp->dir[1], sp->dir[2], |
294 |
> |
sp->dom, sp->brt, n); |
295 |
|
} |