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> |
18 |
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|
19 |
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#include <ctype.h> |
20 |
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|
21 |
< |
VIEW ourview = STDVIEW(470); /* viewing parameters */ |
21 |
> |
VIEW ourview = STDVIEW; /* viewing parameters */ |
22 |
> |
int hresolu, vresolu; /* image resolution */ |
23 |
|
|
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. */ |
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|
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int maxdepth = 4; /* maximum recursion depth */ |
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double minweight = 1e-2; /* minimum ray weight */ |
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int ambincl = -1; /* include == 1, exclude == 0 */ |
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|
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int greyscale = 0; /* map colors to brightness? */ |
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< |
char *devname = "X"; /* output device name */ |
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> |
char *devname = dev_default; /* output device name */ |
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|
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struct driver *dev = NULL; /* driver functions */ |
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|
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RECT pframe; /* current frame boundaries */ |
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int pdepth; /* image depth in current frame */ |
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|
64 |
< |
#define CTRL(c) ('c'-'@') |
64 |
> |
static char *reserve_mem = NULL; /* pre-allocated reserve memory */ |
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|
66 |
+ |
#define RESERVE_AMT 32768 /* amount of memory to reserve */ |
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|
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+ |
#define CTRL(c) ((c)-'@') |
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+ |
|
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+ |
|
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quit(code) /* quit program */ |
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int code; |
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{ |
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char *dname; |
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{ |
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extern char *progname, *octname; |
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< |
char *devargv[3]; |
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> |
char *id; |
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register int i; |
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|
86 |
< |
devargv[0] = dname; |
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< |
devargv[1] = octname!=NULL ? octname : progname; |
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< |
devargv[2] = NULL; |
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> |
id = octname!=NULL ? octname : progname; |
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/* check device table */ |
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for (i = 0; devtable[i].name; i++) |
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if (!strcmp(dname, devtable[i].name)) |
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< |
if ((dev = (*devtable[i].init)(devargv[1])) == NULL) { |
90 |
> |
if ((dev = (*devtable[i].init)(dname, id)) == NULL) { |
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sprintf(errmsg, "cannot initialize %s", dname); |
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error(USER, errmsg); |
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} else |
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return; |
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/* not there, try exec */ |
96 |
< |
if ((dev = comm_init(devargv)) == NULL) { |
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> |
if ((dev = comm_init(dname, id)) == NULL) { |
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sprintf(errmsg, "cannot start device \"%s\"", dname); |
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error(USER, errmsg); |
99 |
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} |
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char buf[32]; |
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|
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devopen(devname); /* open device */ |
125 |
< |
newimage(); /* set up image */ |
125 |
> |
newimage(); /* start image (calls fillreserves) */ |
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|
127 |
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for ( ; ; ) { /* quit in command() */ |
128 |
< |
while (ourview.hresolu <= 1<<pdepth && |
120 |
< |
ourview.vresolu <= 1<<pdepth) |
128 |
> |
while (hresolu <= 1<<pdepth && vresolu <= 1<<pdepth) |
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command("done: "); |
130 |
< |
|
131 |
< |
if (ourview.hresolu <= psample<<pdepth && |
132 |
< |
ourview.vresolu <= psample<<pdepth) { |
130 |
> |
while (reserve_mem == NULL) |
131 |
> |
command("out of memory: "); |
132 |
> |
errno = 0; |
133 |
> |
if (hresolu <= psample<<pdepth && vresolu <= psample<<pdepth) { |
134 |
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sprintf(buf, "%d sampling...\n", 1<<pdepth); |
135 |
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(*dev->comout)(buf); |
136 |
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rsample(); |
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} else { |
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sprintf(buf, "%d refining...\n", 1<<pdepth); |
139 |
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(*dev->comout)(buf); |
140 |
< |
refine(&ptrunk, 0, 0, ourview.hresolu, |
132 |
< |
ourview.vresolu, pdepth+1); |
140 |
> |
refine(&ptrunk, 0, 0, hresolu, vresolu, pdepth+1); |
141 |
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} |
142 |
< |
if (dev->inpready) |
142 |
> |
if (errno == ENOMEM) /* ran out of memory */ |
143 |
> |
freereserves(); |
144 |
> |
else if (dev->inpready) /* noticed some input */ |
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command(": "); |
146 |
< |
else |
146 |
> |
else /* finished this depth */ |
147 |
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pdepth++; |
148 |
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} |
149 |
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} |
150 |
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|
151 |
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|
152 |
+ |
fillreserves() /* fill memory reserves */ |
153 |
+ |
{ |
154 |
+ |
if (reserve_mem != NULL) |
155 |
+ |
return; |
156 |
+ |
reserve_mem = malloc(RESERVE_AMT); |
157 |
+ |
} |
158 |
+ |
|
159 |
+ |
|
160 |
+ |
freereserves() /* free memory reserves */ |
161 |
+ |
{ |
162 |
+ |
if (reserve_mem == NULL) |
163 |
+ |
return; |
164 |
+ |
free(reserve_mem); |
165 |
+ |
reserve_mem = NULL; |
166 |
+ |
} |
167 |
+ |
|
168 |
+ |
|
169 |
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command(prompt) /* get/execute command */ |
170 |
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char *prompt; |
171 |
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{ |
172 |
|
#define badcom(s) strncmp(s, inpbuf, args-inpbuf-1) |
146 |
– |
double atof(); |
173 |
|
char inpbuf[256]; |
174 |
|
char *args; |
175 |
|
again: |
176 |
< |
(*dev->comout)(prompt); /* get command + arguments */ |
151 |
< |
(*dev->comin)(inpbuf); |
176 |
> |
(*dev->comin)(inpbuf, prompt); /* get command + arguments */ |
177 |
|
for (args = inpbuf; *args && *args != ' '; args++) |
178 |
|
; |
179 |
|
if (*args) *args++ = '\0'; |
222 |
|
break; |
223 |
|
case 'm': /* move camera */ |
224 |
|
if (badcom("move")) |
225 |
+ |
#ifdef MSTATS |
226 |
+ |
{ |
227 |
+ |
if (badcom("memory")) |
228 |
+ |
goto commerr; |
229 |
+ |
printmemstats(stderr); |
230 |
+ |
break; |
231 |
+ |
} |
232 |
+ |
#else |
233 |
|
goto commerr; |
234 |
+ |
#endif |
235 |
|
getmove(args); |
236 |
|
break; |
237 |
< |
case 'r': /* rotate camera */ |
238 |
< |
if (badcom("rotate")) |
239 |
< |
goto commerr; |
237 |
> |
case 'r': /* rotate/repaint */ |
238 |
> |
if (badcom("rotate")) { |
239 |
> |
if (badcom("repaint")) |
240 |
> |
goto commerr; |
241 |
> |
getrepaint(args); |
242 |
> |
break; |
243 |
> |
} |
244 |
|
getrotate(args); |
245 |
|
break; |
246 |
|
case 'p': /* pivot view */ |
248 |
|
goto commerr; |
249 |
|
getpivot(args); |
250 |
|
break; |
251 |
< |
case CTRL(R): /* redraw */ |
251 |
> |
case CTRL('R'): /* redraw */ |
252 |
|
redraw(); |
253 |
|
break; |
254 |
|
case 'w': /* write */ |
260 |
|
if (badcom("quit")) |
261 |
|
goto commerr; |
262 |
|
quit(0); |
263 |
< |
case CTRL(C): /* interrupt */ |
263 |
> |
case CTRL('C'): /* interrupt */ |
264 |
|
goto again; |
265 |
|
#ifdef SIGTSTP |
266 |
< |
case CTRL(Z): /* stop */ |
266 |
> |
case CTRL('Z'): /* stop */ |
267 |
|
devclose(); |
268 |
|
kill(0, SIGTSTP); |
269 |
|
/* pc stops here */ |
302 |
|
* difference, we subsample the super-pixels. The testing process |
303 |
|
* includes initialization of the next row. |
304 |
|
*/ |
305 |
< |
xsiz = (((pframe.r-pframe.l)<<pdepth)+ourview.hresolu-1) / |
306 |
< |
ourview.hresolu; |
269 |
< |
ysiz = (((pframe.u-pframe.d)<<pdepth)+ourview.vresolu-1) / |
270 |
< |
ourview.vresolu; |
305 |
> |
xsiz = (((pframe.r-pframe.l)<<pdepth)+hresolu-1) / hresolu; |
306 |
> |
ysiz = (((pframe.u-pframe.d)<<pdepth)+vresolu-1) / vresolu; |
307 |
|
rl = (RECT *)malloc(xsiz*sizeof(RECT)); |
308 |
+ |
if (rl == NULL) |
309 |
+ |
return; |
310 |
|
pl = (PNODE **)malloc(xsiz*sizeof(PNODE *)); |
311 |
< |
if (rl == NULL || pl == NULL) |
312 |
< |
error(SYSTEM, "out of memory in rsample"); |
311 |
> |
if (pl == NULL) |
312 |
> |
return; |
313 |
|
/* |
314 |
|
* Initialize the bottom row. |
315 |
|
*/ |
316 |
|
rl[0].l = rl[0].d = 0; |
317 |
< |
rl[0].r = ourview.hresolu; rl[0].u = ourview.vresolu; |
317 |
> |
rl[0].r = hresolu; rl[0].u = vresolu; |
318 |
|
pl[0] = findrect(pframe.l, pframe.d, &ptrunk, rl, pdepth); |
319 |
|
for (x = 1; x < xsiz; x++) { |
320 |
|
rl[x].l = rl[x].d = 0; |
321 |
< |
rl[x].r = ourview.hresolu; rl[x].u = ourview.vresolu; |
322 |
< |
pl[x] = findrect(pframe.l+((x*ourview.hresolu)>>pdepth), |
321 |
> |
rl[x].r = hresolu; rl[x].u = vresolu; |
322 |
> |
pl[x] = findrect(pframe.l+((x*hresolu)>>pdepth), |
323 |
|
pframe.d, &ptrunk, rl+x, pdepth); |
324 |
|
} |
325 |
|
/* sample the image */ |
326 |
|
for (y = 0; /* y < ysiz */ ; y++) { |
327 |
|
for (x = 0; x < xsiz-1; x++) { |
328 |
< |
if (dev->inpready) |
328 |
> |
if (dev->inpready || errno == ENOMEM) |
329 |
|
goto escape; |
330 |
|
/* |
331 |
|
* Test super-pixel to the right. |
341 |
|
if (y >= ysiz-1) |
342 |
|
break; |
343 |
|
for (x = 0; x < xsiz; x++) { |
344 |
< |
if (dev->inpready) |
344 |
> |
if (dev->inpready || errno == ENOMEM) |
345 |
|
goto escape; |
346 |
|
/* |
347 |
|
* Find super-pixel at this position in next row. |
348 |
|
*/ |
349 |
|
r.l = r.d = 0; |
350 |
< |
r.r = ourview.hresolu; r.u = ourview.vresolu; |
351 |
< |
p = findrect(pframe.l+((x*ourview.hresolu)>>pdepth), |
352 |
< |
pframe.d+(((y+1)*ourview.vresolu)>>pdepth), |
350 |
> |
r.r = hresolu; r.u = vresolu; |
351 |
> |
p = findrect(pframe.l+((x*hresolu)>>pdepth), |
352 |
> |
pframe.d+(((y+1)*vresolu)>>pdepth), |
353 |
|
&ptrunk, &r, pdepth); |
354 |
|
/* |
355 |
|
* Test super-pixel in next row. |
396 |
|
if (p->kid == NULL) { /* subdivide */ |
397 |
|
|
398 |
|
if ((p->kid = newptree()) == NULL) |
399 |
< |
error(SYSTEM, "out of memory in refine"); |
399 |
> |
return(0); |
400 |
|
/* |
401 |
|
* The following paint order can leave a black pixel |
402 |
|
* when redraw() is called in (*dev->paintr)(). |