10 |
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* 3/24/87 |
11 |
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*/ |
12 |
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|
13 |
< |
#include "standard.h" |
13 |
> |
#include "ray.h" |
14 |
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|
15 |
– |
#include "color.h" |
16 |
– |
|
15 |
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#include "rpaint.h" |
16 |
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|
17 |
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#include <signal.h> |
21 |
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VIEW ourview = STDVIEW; /* viewing parameters */ |
22 |
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int hresolu, vresolu; /* image resolution */ |
23 |
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|
24 |
+ |
int dimlist[MAXDIM]; /* sampling dimensions */ |
25 |
+ |
int ndims = 0; /* number of sampling dimensions */ |
26 |
+ |
int samplendx = 0; /* index for this sample */ |
27 |
+ |
|
28 |
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int psample = 8; /* pixel sample size */ |
29 |
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double maxdiff = .15; /* max. sample difference */ |
30 |
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|
33 |
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double dstrsrc = 0.0; /* square source distribution */ |
34 |
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double shadthresh = .1; /* shadow threshold */ |
35 |
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double shadcert = .25; /* shadow certainty */ |
36 |
+ |
int directrelay = 0; /* number of source relays */ |
37 |
+ |
int vspretest = 128; /* virtual source pretest density */ |
38 |
+ |
int directinvis = 0; /* sources invisible? */ |
39 |
+ |
double srcsizerat = 0.; /* maximum ratio source size/dist. */ |
40 |
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|
41 |
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int maxdepth = 4; /* maximum recursion depth */ |
42 |
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double minweight = 1e-2; /* minimum ray weight */ |
63 |
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|
64 |
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static char *reserve_mem = NULL; /* pre-allocated reserve memory */ |
65 |
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|
66 |
< |
#define RESERVE_AMT 8192 /* amount of memory to reserve */ |
66 |
> |
#define RESERVE_AMT 32768 /* amount of memory to reserve */ |
67 |
|
|
68 |
|
#define CTRL(c) ('c'-'@') |
69 |
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|
317 |
|
/* sample the image */ |
318 |
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for (y = 0; /* y < ysiz */ ; y++) { |
319 |
|
for (x = 0; x < xsiz-1; x++) { |
320 |
< |
if (dev->inpready) |
320 |
> |
if (dev->inpready || errno == ENOMEM) |
321 |
|
goto escape; |
322 |
|
/* |
323 |
|
* Test super-pixel to the right. |
333 |
|
if (y >= ysiz-1) |
334 |
|
break; |
335 |
|
for (x = 0; x < xsiz; x++) { |
336 |
< |
if (dev->inpready) |
336 |
> |
if (dev->inpready || errno == ENOMEM) |
337 |
|
goto escape; |
338 |
|
/* |
339 |
|
* Find super-pixel at this position in next row. |
388 |
|
if (p->kid == NULL) { /* subdivide */ |
389 |
|
|
390 |
|
if ((p->kid = newptree()) == NULL) |
391 |
< |
return(growth); |
391 |
> |
return(0); |
392 |
|
/* |
393 |
|
* The following paint order can leave a black pixel |
394 |
|
* when redraw() is called in (*dev->paintr)(). |