45 |
|
extern int hresolu; /* horizontal resolution */ |
46 |
|
extern int vresolu; /* vertical resolution */ |
47 |
|
|
48 |
< |
static int castonly = 0; |
48 |
> |
int castonly = 0; /* only doing ray-casting? */ |
49 |
|
|
50 |
|
#ifndef MAXTSET |
51 |
|
#define MAXTSET 8191 /* maximum number in trace set */ |
68 |
|
oputr, oputR, oputx, oputX, oputn, oputN, oputs, |
69 |
|
oputw, oputW, oputm, oputM, oputtilde; |
70 |
|
|
71 |
– |
static void setoutput(char *vs); |
71 |
|
extern void tranotify(OBJECT obj); |
72 |
+ |
static int is_fifo(FILE *fp); |
73 |
|
static void bogusray(void); |
74 |
|
static void raycast(RAY *r); |
75 |
|
static void rayirrad(RAY *r); |
92 |
|
{ |
93 |
|
if (ray_pnprocs > 0) /* close children if any */ |
94 |
|
ray_pclose(0); |
95 |
+ |
else if (ray_pnprocs < 0) |
96 |
+ |
_exit(code); /* avoid flush() in child */ |
97 |
|
#ifndef NON_POSIX |
98 |
< |
else if (!ray_pnprocs) { |
98 |
> |
else { |
99 |
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headclean(); /* delete header file */ |
100 |
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pfclean(); /* clean up persist files */ |
101 |
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} |
119 |
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} |
120 |
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|
121 |
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|
122 |
< |
extern void |
122 |
> |
void |
123 |
|
rtrace( /* trace rays from file */ |
124 |
|
char *fname, |
125 |
|
int nproc |
146 |
|
if (inform != 'a') |
147 |
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SET_FILE_BINARY(inpfp); |
148 |
|
/* set up output */ |
149 |
< |
setoutput(outvals); |
148 |
< |
if (imm_irrad) |
149 |
< |
castonly = 0; |
150 |
< |
else if (castonly || every_out[0] != NULL) |
149 |
> |
if (castonly || every_out[0] != NULL) |
150 |
|
nproc = 1; /* don't bother multiprocessing */ |
151 |
|
if ((nextflush > 0) & (nproc > nextflush)) { |
152 |
|
error(WARNING, "reducing number of processes to match flush interval"); |
157 |
|
case 'f': putreal = putf; break; |
158 |
|
case 'd': putreal = putd; break; |
159 |
|
case 'c': |
160 |
< |
if (outvals[0] && (outvals[1] || !strchr("vrx", outvals[0]))) |
160 |
> |
if (outvals[1] || !strchr("vrx", outvals[0])) |
161 |
|
error(USER, "color format only with -ov, -or, -ox"); |
162 |
|
putreal = putrgbe; break; |
163 |
|
default: |
227 |
|
} |
228 |
|
|
229 |
|
|
230 |
< |
static void |
231 |
< |
setoutput( /* set up output tables */ |
233 |
< |
char *vs |
234 |
< |
) |
230 |
> |
int |
231 |
> |
setrtoutput(void) /* set up output tables, return #comp */ |
232 |
|
{ |
233 |
+ |
char *vs = outvals; |
234 |
|
oputf_t **table = ray_out; |
235 |
+ |
int ncomp = 0; |
236 |
|
|
237 |
< |
castonly = 1; |
238 |
< |
while (*vs) |
239 |
< |
switch (*vs++) { |
237 |
> |
if (!*vs) |
238 |
> |
error(USER, "empty output specification"); |
239 |
> |
|
240 |
> |
castonly = 1; /* sets castonly as side-effect */ |
241 |
> |
do |
242 |
> |
switch (*vs) { |
243 |
|
case 'T': /* trace sources */ |
244 |
< |
if (!*vs) break; |
244 |
> |
if (!vs[1]) break; |
245 |
|
trace_sources(); |
246 |
|
/* fall through */ |
247 |
|
case 't': /* trace */ |
248 |
< |
if (!*vs) break; |
248 |
> |
if (!vs[1]) break; |
249 |
|
*table = NULL; |
250 |
|
table = every_out; |
251 |
|
trace = ourtrace; |
253 |
|
break; |
254 |
|
case 'o': /* origin */ |
255 |
|
*table++ = oputo; |
256 |
+ |
ncomp += 3; |
257 |
|
break; |
258 |
|
case 'd': /* direction */ |
259 |
|
*table++ = oputd; |
260 |
+ |
ncomp += 3; |
261 |
|
break; |
262 |
|
case 'r': /* reflected contrib. */ |
263 |
|
*table++ = oputr; |
264 |
+ |
ncomp += 3; |
265 |
|
castonly = 0; |
266 |
|
break; |
267 |
|
case 'R': /* reflected distance */ |
268 |
|
*table++ = oputR; |
269 |
+ |
ncomp++; |
270 |
|
castonly = 0; |
271 |
|
break; |
272 |
|
case 'x': /* xmit contrib. */ |
273 |
|
*table++ = oputx; |
274 |
+ |
ncomp += 3; |
275 |
|
castonly = 0; |
276 |
|
break; |
277 |
|
case 'X': /* xmit distance */ |
278 |
|
*table++ = oputX; |
279 |
+ |
ncomp++; |
280 |
|
castonly = 0; |
281 |
|
break; |
282 |
|
case 'v': /* value */ |
283 |
|
*table++ = oputv; |
284 |
+ |
ncomp += 3; |
285 |
|
castonly = 0; |
286 |
|
break; |
287 |
|
case 'V': /* contribution */ |
288 |
|
*table++ = oputV; |
289 |
+ |
ncomp += 3; |
290 |
+ |
castonly = 0; |
291 |
|
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0)) |
292 |
|
error(WARNING, |
293 |
|
"-otV accuracy depends on -aa 0 -as 0"); |
294 |
|
break; |
295 |
|
case 'l': /* effective distance */ |
296 |
|
*table++ = oputl; |
297 |
+ |
ncomp++; |
298 |
|
castonly = 0; |
299 |
|
break; |
300 |
|
case 'c': /* local coordinates */ |
301 |
|
*table++ = oputc; |
302 |
+ |
ncomp += 2; |
303 |
|
break; |
304 |
|
case 'L': /* single ray length */ |
305 |
|
*table++ = oputL; |
306 |
+ |
ncomp++; |
307 |
|
break; |
308 |
|
case 'p': /* point */ |
309 |
|
*table++ = oputp; |
310 |
+ |
ncomp += 3; |
311 |
|
break; |
312 |
|
case 'n': /* perturbed normal */ |
313 |
|
*table++ = oputn; |
314 |
+ |
ncomp += 3; |
315 |
|
castonly = 0; |
316 |
|
break; |
317 |
|
case 'N': /* unperturbed normal */ |
318 |
|
*table++ = oputN; |
319 |
+ |
ncomp += 3; |
320 |
|
break; |
321 |
|
case 's': /* surface */ |
322 |
|
*table++ = oputs; |
323 |
+ |
ncomp++; |
324 |
|
break; |
325 |
|
case 'w': /* weight */ |
326 |
|
*table++ = oputw; |
327 |
+ |
ncomp++; |
328 |
|
break; |
329 |
|
case 'W': /* coefficient */ |
330 |
|
*table++ = oputW; |
331 |
+ |
ncomp += 3; |
332 |
|
castonly = 0; |
333 |
|
if (ambounce > 0 && (ambacc > FTINY) | (ambssamp > 0)) |
334 |
|
error(WARNING, |
336 |
|
break; |
337 |
|
case 'm': /* modifier */ |
338 |
|
*table++ = oputm; |
339 |
+ |
ncomp++; |
340 |
|
break; |
341 |
|
case 'M': /* material */ |
342 |
|
*table++ = oputM; |
343 |
+ |
ncomp++; |
344 |
|
break; |
345 |
|
case '~': /* tilde */ |
346 |
|
*table++ = oputtilde; |
347 |
|
break; |
348 |
+ |
default: |
349 |
+ |
sprintf(errmsg, "unrecognized output option '%c'", *vs); |
350 |
+ |
error(USER, errmsg); |
351 |
|
} |
352 |
+ |
while (*++vs); |
353 |
+ |
|
354 |
|
*table = NULL; |
355 |
+ |
if (*every_out != NULL) |
356 |
+ |
ncomp = 0; |
357 |
|
/* compatibility */ |
358 |
+ |
if ((do_irrad | imm_irrad) && castonly) |
359 |
+ |
error(USER, "-I+ and -i+ options require some value output"); |
360 |
|
for (table = ray_out; *table != NULL; table++) { |
361 |
|
if ((*table == oputV) | (*table == oputW)) |
362 |
|
error(WARNING, "-oVW options require trace mode"); |
365 |
|
(*table == oputx) | (*table == oputX)) |
366 |
|
error(WARNING, "-orRxX options incompatible with -I+ and -i+"); |
367 |
|
} |
368 |
+ |
return(ncomp); |
369 |
|
} |
370 |
|
|
371 |
|
|
464 |
|
|
465 |
|
|
466 |
|
static int |
467 |
+ |
is_fifo( /* check if file pointer connected to pipe */ |
468 |
+ |
FILE *fp |
469 |
+ |
) |
470 |
+ |
{ |
471 |
+ |
#ifdef S_ISFIFO |
472 |
+ |
struct stat sbuf; |
473 |
+ |
|
474 |
+ |
if (fstat(fileno(fp), &sbuf) < 0) |
475 |
+ |
error(SYSTEM, "fstat() failed on input stream"); |
476 |
+ |
return(S_ISFIFO(sbuf.st_mode)); |
477 |
+ |
#else |
478 |
+ |
return (fp == stdin); /* just a guess, really */ |
479 |
+ |
#endif |
480 |
+ |
} |
481 |
+ |
|
482 |
+ |
|
483 |
+ |
static int |
484 |
|
getvec( /* get a vector from fp */ |
485 |
|
FVECT vec, |
486 |
|
int fmt, |
544 |
|
int rsiz = 6*20; /* conservative ascii ray size */ |
545 |
|
if (inform == 'f') rsiz = 6*sizeof(float); |
546 |
|
else if (inform == 'd') rsiz = 6*sizeof(double); |
547 |
< |
if ((inpfp == stdin) & (qlength*rsiz > 512)) /* pipe limit */ |
547 |
> |
/* check against pipe limit */ |
548 |
> |
if (qlength*rsiz > 512 && is_fifo(inpfp)) |
549 |
|
inp_queue = (FVECT *)malloc(sizeof(FVECT)*2*qlength); |
550 |
|
inp_qend = -(inp_queue == NULL); /* flag for no queue */ |
551 |
|
} |
765 |
|
|
766 |
|
|
767 |
|
static void |
768 |
< |
oputp( /* print point */ |
768 |
> |
oputp( /* print intersection point */ |
769 |
|
RAY *r |
770 |
|
) |
771 |
|
{ |
772 |
< |
if (r->rot < FHUGE*.99) |
723 |
< |
(*putreal)(r->rop, 3); |
724 |
< |
else |
725 |
< |
(*putreal)(vdummy, 3); |
772 |
> |
(*putreal)(r->rop, 3); /* set to ray origin if distant or no hit */ |
773 |
|
} |
774 |
|
|
775 |
|
|
778 |
|
RAY *r |
779 |
|
) |
780 |
|
{ |
781 |
< |
if (r->rot < FHUGE*.99) { |
735 |
< |
if (r->rflips & 1) { /* undo any flippin' flips */ |
736 |
< |
FVECT unrm; |
737 |
< |
unrm[0] = -r->ron[0]; |
738 |
< |
unrm[1] = -r->ron[1]; |
739 |
< |
unrm[2] = -r->ron[2]; |
740 |
< |
(*putreal)(unrm, 3); |
741 |
< |
} else |
742 |
< |
(*putreal)(r->ron, 3); |
743 |
< |
} else |
781 |
> |
if (r->ro == NULL) { /* zero vector if clipped or no hit */ |
782 |
|
(*putreal)(vdummy, 3); |
783 |
+ |
return; |
784 |
+ |
} |
785 |
+ |
if (r->rflips & 1) { /* undo any flippin' flips */ |
786 |
+ |
FVECT unrm; |
787 |
+ |
unrm[0] = -r->ron[0]; |
788 |
+ |
unrm[1] = -r->ron[1]; |
789 |
+ |
unrm[2] = -r->ron[2]; |
790 |
+ |
(*putreal)(unrm, 3); |
791 |
+ |
} else |
792 |
+ |
(*putreal)(r->ron, 3); |
793 |
|
} |
794 |
|
|
795 |
|
|
800 |
|
{ |
801 |
|
FVECT pnorm; |
802 |
|
|
803 |
< |
if (r->rot >= FHUGE*.99) { |
803 |
> |
if (r->ro == NULL) { /* clipped or no hit */ |
804 |
|
(*putreal)(vdummy, 3); |
805 |
|
return; |
806 |
|
} |