45 |
|
extern int hresolu; /* horizontal resolution */ |
46 |
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extern int vresolu; /* vertical resolution */ |
47 |
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|
48 |
< |
static int castonly = 0; |
48 |
> |
int castonly = 0; /* only doing ray-casting? */ |
49 |
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|
50 |
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#ifndef MAXTSET |
51 |
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#define MAXTSET 8191 /* maximum number in trace set */ |
68 |
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oputr, oputR, oputx, oputX, oputn, oputN, oputs, |
69 |
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oputw, oputW, oputm, oputM, oputtilde; |
70 |
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|
71 |
– |
static void setoutput(char *vs); |
71 |
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extern void tranotify(OBJECT obj); |
72 |
+ |
static int is_fifo(FILE *fp); |
73 |
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static void bogusray(void); |
74 |
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static void raycast(RAY *r); |
75 |
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static void rayirrad(RAY *r); |
117 |
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} |
118 |
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|
119 |
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|
120 |
< |
extern void |
120 |
> |
void |
121 |
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rtrace( /* trace rays from file */ |
122 |
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char *fname, |
123 |
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int nproc |
144 |
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if (inform != 'a') |
145 |
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SET_FILE_BINARY(inpfp); |
146 |
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/* set up output */ |
147 |
< |
setoutput(outvals); |
148 |
< |
if (imm_irrad) |
149 |
< |
castonly = 0; |
150 |
< |
else if (castonly) |
147 |
> |
if (castonly || every_out[0] != NULL) |
148 |
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nproc = 1; /* don't bother multiprocessing */ |
149 |
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if ((nextflush > 0) & (nproc > nextflush)) { |
150 |
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error(WARNING, "reducing number of processes to match flush interval"); |
155 |
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case 'f': putreal = putf; break; |
156 |
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case 'd': putreal = putd; break; |
157 |
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case 'c': |
158 |
< |
if (outvals[0] && (outvals[1] || !strchr("vrx", outvals[0]))) |
158 |
> |
if (outvals[1] || !strchr("vrx", outvals[0])) |
159 |
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error(USER, "color format only with -ov, -or, -ox"); |
160 |
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putreal = putrgbe; break; |
161 |
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default: |
225 |
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} |
226 |
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|
227 |
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|
228 |
< |
static void |
229 |
< |
setoutput( /* set up output tables */ |
233 |
< |
char *vs |
234 |
< |
) |
228 |
> |
int |
229 |
> |
setrtoutput(void) /* set up output tables, return #comp */ |
230 |
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{ |
231 |
+ |
char *vs = outvals; |
232 |
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oputf_t **table = ray_out; |
233 |
+ |
int ncomp = 0; |
234 |
|
|
235 |
< |
castonly = 1; |
236 |
< |
while (*vs) |
237 |
< |
switch (*vs++) { |
235 |
> |
if (!*vs) |
236 |
> |
error(USER, "empty output specification"); |
237 |
> |
|
238 |
> |
castonly = 1; /* sets castonly as side-effect */ |
239 |
> |
do |
240 |
> |
switch (*vs) { |
241 |
|
case 'T': /* trace sources */ |
242 |
< |
if (!*vs) break; |
242 |
> |
if (!vs[1]) break; |
243 |
|
trace_sources(); |
244 |
|
/* fall through */ |
245 |
|
case 't': /* trace */ |
246 |
< |
if (!*vs) break; |
246 |
> |
if (!vs[1]) break; |
247 |
|
*table = NULL; |
248 |
|
table = every_out; |
249 |
|
trace = ourtrace; |
251 |
|
break; |
252 |
|
case 'o': /* origin */ |
253 |
|
*table++ = oputo; |
254 |
+ |
ncomp += 3; |
255 |
|
break; |
256 |
|
case 'd': /* direction */ |
257 |
|
*table++ = oputd; |
258 |
+ |
ncomp += 3; |
259 |
|
break; |
260 |
|
case 'r': /* reflected contrib. */ |
261 |
|
*table++ = oputr; |
262 |
+ |
ncomp += 3; |
263 |
|
castonly = 0; |
264 |
|
break; |
265 |
|
case 'R': /* reflected distance */ |
266 |
|
*table++ = oputR; |
267 |
+ |
ncomp++; |
268 |
|
castonly = 0; |
269 |
|
break; |
270 |
|
case 'x': /* xmit contrib. */ |
271 |
|
*table++ = oputx; |
272 |
+ |
ncomp += 3; |
273 |
|
castonly = 0; |
274 |
|
break; |
275 |
|
case 'X': /* xmit distance */ |
276 |
|
*table++ = oputX; |
277 |
+ |
ncomp++; |
278 |
|
castonly = 0; |
279 |
|
break; |
280 |
|
case 'v': /* value */ |
281 |
|
*table++ = oputv; |
282 |
+ |
ncomp += 3; |
283 |
|
castonly = 0; |
284 |
|
break; |
285 |
|
case 'V': /* contribution */ |
286 |
|
*table++ = oputV; |
287 |
+ |
ncomp += 3; |
288 |
+ |
castonly = 0; |
289 |
|
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0)) |
290 |
|
error(WARNING, |
291 |
|
"-otV accuracy depends on -aa 0 -as 0"); |
292 |
|
break; |
293 |
|
case 'l': /* effective distance */ |
294 |
|
*table++ = oputl; |
295 |
+ |
ncomp++; |
296 |
|
castonly = 0; |
297 |
|
break; |
298 |
|
case 'c': /* local coordinates */ |
299 |
|
*table++ = oputc; |
300 |
+ |
ncomp += 2; |
301 |
|
break; |
302 |
|
case 'L': /* single ray length */ |
303 |
|
*table++ = oputL; |
304 |
+ |
ncomp++; |
305 |
|
break; |
306 |
|
case 'p': /* point */ |
307 |
|
*table++ = oputp; |
308 |
+ |
ncomp += 3; |
309 |
|
break; |
310 |
|
case 'n': /* perturbed normal */ |
311 |
|
*table++ = oputn; |
312 |
+ |
ncomp += 3; |
313 |
|
castonly = 0; |
314 |
|
break; |
315 |
|
case 'N': /* unperturbed normal */ |
316 |
|
*table++ = oputN; |
317 |
+ |
ncomp += 3; |
318 |
|
break; |
319 |
|
case 's': /* surface */ |
320 |
|
*table++ = oputs; |
321 |
+ |
ncomp++; |
322 |
|
break; |
323 |
|
case 'w': /* weight */ |
324 |
|
*table++ = oputw; |
325 |
+ |
ncomp++; |
326 |
|
break; |
327 |
|
case 'W': /* coefficient */ |
328 |
|
*table++ = oputW; |
329 |
+ |
ncomp += 3; |
330 |
|
castonly = 0; |
331 |
|
if (ambounce > 0 && (ambacc > FTINY) | (ambssamp > 0)) |
332 |
|
error(WARNING, |
334 |
|
break; |
335 |
|
case 'm': /* modifier */ |
336 |
|
*table++ = oputm; |
337 |
+ |
ncomp++; |
338 |
|
break; |
339 |
|
case 'M': /* material */ |
340 |
|
*table++ = oputM; |
341 |
+ |
ncomp++; |
342 |
|
break; |
343 |
|
case '~': /* tilde */ |
344 |
|
*table++ = oputtilde; |
345 |
|
break; |
346 |
+ |
default: |
347 |
+ |
sprintf(errmsg, "unrecognized output option '%c'", *vs); |
348 |
+ |
error(USER, errmsg); |
349 |
|
} |
350 |
+ |
while (*++vs); |
351 |
+ |
|
352 |
|
*table = NULL; |
353 |
+ |
if (*every_out != NULL) |
354 |
+ |
ncomp = 0; |
355 |
|
/* compatibility */ |
356 |
+ |
if ((do_irrad | imm_irrad) && castonly) |
357 |
+ |
error(USER, "-I+ and -i+ options require some value output"); |
358 |
|
for (table = ray_out; *table != NULL; table++) { |
359 |
|
if ((*table == oputV) | (*table == oputW)) |
360 |
|
error(WARNING, "-oVW options require trace mode"); |
363 |
|
(*table == oputx) | (*table == oputX)) |
364 |
|
error(WARNING, "-orRxX options incompatible with -I+ and -i+"); |
365 |
|
} |
366 |
+ |
return(ncomp); |
367 |
|
} |
368 |
|
|
369 |
|
|
462 |
|
|
463 |
|
|
464 |
|
static int |
465 |
+ |
is_fifo( /* check if file pointer connected to pipe */ |
466 |
+ |
FILE *fp |
467 |
+ |
) |
468 |
+ |
{ |
469 |
+ |
#ifdef S_ISFIFO |
470 |
+ |
struct stat sbuf; |
471 |
+ |
|
472 |
+ |
if (fstat(fileno(fp), &sbuf) < 0) |
473 |
+ |
error(SYSTEM, "fstat() failed on input stream"); |
474 |
+ |
return(S_ISFIFO(sbuf.st_mode)); |
475 |
+ |
#else |
476 |
+ |
return (fp == stdin); /* just a guess, really */ |
477 |
+ |
#endif |
478 |
+ |
} |
479 |
+ |
|
480 |
+ |
|
481 |
+ |
static int |
482 |
|
getvec( /* get a vector from fp */ |
483 |
|
FVECT vec, |
484 |
|
int fmt, |
542 |
|
int rsiz = 6*20; /* conservative ascii ray size */ |
543 |
|
if (inform == 'f') rsiz = 6*sizeof(float); |
544 |
|
else if (inform == 'd') rsiz = 6*sizeof(double); |
545 |
< |
if ((inpfp == stdin) & (qlength*rsiz > 512)) /* pipe limit */ |
545 |
> |
/* check against pipe limit */ |
546 |
> |
if (qlength*rsiz > 512 && is_fifo(inpfp)) |
547 |
|
inp_queue = (FVECT *)malloc(sizeof(FVECT)*2*qlength); |
548 |
|
inp_qend = -(inp_queue == NULL); /* flag for no queue */ |
549 |
|
} |