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root/radiance/ray/src/rt/rxcmain.cpp
Revision: 2.17
Committed: Tue Apr 22 17:12:25 2025 UTC (9 days, 19 hours ago) by greg
Branch: MAIN
CVS Tags: HEAD
Changes since 2.16: +2 -11 lines
Log Message:
feat(rpict,rtrace,rvu,rxpict,rxtrace,rxpiece): Added -e expr and -f file.cal options

File Contents

# Content
1 #ifndef lint
2 static const char RCSid[] = "$Id: rxcmain.cpp,v 2.16 2025/03/05 17:29:57 greg Exp $";
3 #endif
4 /*
5 * rxcmain.c - main for rxcontrib ray contribution tracer
6 */
7
8 #include "copyright.h"
9
10 #include <signal.h>
11 #include <time.h>
12 #include <ctype.h>
13 #include "RcontribSimulManager.h"
14 #include "platform.h"
15 #include "func.h"
16
17 const char *sigerr[NSIG]; /* signal error messages */
18
19 int nproc = 1; /* number of processes requested */
20
21 int inpfmt = 'a'; /* input format */
22 int outfmt = 'f'; /* output format */
23
24 int report_intvl = 0; /* reporting interval (seconds) */
25
26 extern char * progname; // global argv[0]
27
28 RcontribSimulManager myRCmanager; // global rcontrib simulation manager
29
30 #define RCONTRIB_FEATURES "Multiprocessing\n" \
31 "Accumulation\nRecovery\n" \
32 "ImmediateIrradiance\n" \
33 "ProgressReporting\nDistanceLimiting\n" \
34 "InputFormats=a,f,d\nOutputFormats=f,d,c\n" \
35 "Outputs=V,W\n" \
36 "OutputCS=RGB,spec\n"
37
38 static void rxcontrib(const int rstart = 0);
39
40 static void
41 printdefaults(void) /* print default values to stdout */
42 {
43 printf("-c %-5d\t\t\t# accumulated rays per record\n", myRCmanager.accum);
44 printf(myRCmanager.HasFlag(RCcontrib) ?
45 "-V+\t\t\t\t# output contributions\n" :
46 "-V-\t\t\t\t# output coefficients\n");
47 if (myRCmanager.HasFlag(RTimmIrrad))
48 printf("-I+\t\t\t\t# immediate irradiance on\n");
49 printf("-n %-2d\t\t\t\t# number of rendering processes\n", nproc);
50 printf("-x %-9d\t\t\t# x resolution\n", myRCmanager.xres);
51 printf("-y %-9d\t\t\t# y resolution\n", myRCmanager.yres);
52 printf(myRCmanager.HasFlag(RTlimDist) ?
53 "-ld+\t\t\t\t# limit distance on\n" :
54 "-ld-\t\t\t\t# limit distance off\n");
55 printf("-f%c%c\t\t\t\t# format input/output = %s/%s\n",
56 inpfmt, outfmt, formstr(inpfmt), formstr(outfmt));
57 if (report_intvl > 0)
58 printf("-t %-9d\t\t\t# time between reports\n", report_intvl);
59 printf(erract[WARNING].pf != NULL ?
60 "-w+\t\t\t\t# warning messages on\n" :
61 "-w-\t\t\t\t# warning messages off\n");
62 print_rdefaults();
63 }
64
65
66 static void
67 onsig( /* fatal signal */
68 int signo
69 )
70 {
71 static int gotsig = 0;
72
73 if (gotsig++) /* two signals and we're gone! */
74 _exit(signo);
75
76 #ifdef SIGALRM
77 alarm(600); /* allow 10 minutes to clean up */
78 signal(SIGALRM, SIG_DFL); /* make certain we do die */
79 #endif
80 eputs("signal - ");
81 eputs(sigerr[signo]);
82 eputs("\n");
83 quit(3);
84 }
85
86
87 static void
88 sigdie( /* set fatal signal */
89 int signo,
90 const char *msg
91 )
92 {
93 if (signal(signo, onsig) == SIG_IGN)
94 signal(signo, SIG_IGN);
95 sigerr[signo] = msg;
96 }
97
98 /* set input/output format */
99 static void
100 setformat(const char *fmt)
101 {
102 switch (fmt[0]) {
103 case 'f':
104 case 'd':
105 SET_FILE_BINARY(stdin);
106 /* fall through */
107 case 'a':
108 inpfmt = fmt[0];
109 break;
110 default:
111 goto fmterr;
112 }
113 switch (fmt[1]) {
114 case '\0':
115 if (inpfmt == 'a')
116 goto fmterr;
117 outfmt = inpfmt;
118 return;
119 case 'f':
120 case 'd':
121 case 'c':
122 outfmt = fmt[1];
123 break;
124 default:
125 goto fmterr;
126 }
127 if (!fmt[2])
128 return;
129 fmterr:
130 sprintf(errmsg, "Unsupported i/o format: -f%s", fmt);
131 error(USER, errmsg);
132 }
133
134 /* Set default options */
135 static void
136 default_options(void)
137 {
138 rand_samp = 1;
139 dstrsrc = 0.9;
140 directrelay = 3;
141 vspretest = 512;
142 srcsizerat = .2;
143 specthresh = .02;
144 specjitter = 1.;
145 maxdepth = -10;
146 minweight = 2e-3;
147 ambres = 256;
148 ambdiv = 350;
149 ambounce = 1;
150 }
151
152 /* Set overriding options */
153 static void
154 override_options(void)
155 {
156 shadthresh = 0;
157 ambssamp = 0;
158 ambacc = 0;
159 }
160
161 int
162 main(int argc, char *argv[])
163 {
164 #define check(ol,al) if (argv[i][ol] || \
165 badarg(argc-i-1,argv+i+1,al)) \
166 goto badopt
167 #define check_bool(olen,var) switch (argv[i][olen]) { \
168 case '\0': var = !var; break; \
169 case 'y': case 'Y': case 't': case 'T': \
170 case '+': case '1': var = 1; break; \
171 case 'n': case 'N': case 'f': case 'F': \
172 case '-': case '0': var = 0; break; \
173 default: goto badopt; }
174 int force_open = 0;
175 int recover = 0;
176 char *curout = NULL;
177 char *prms = NULL;
178 char *binval = NULL;
179 int bincnt = 0;
180 int rval;
181 int i;
182 /* global program name */
183 progname = argv[0];
184 /* feature check only? */
185 strcat(RFeatureList, RCONTRIB_FEATURES);
186 if (argc > 1 && !strcmp(argv[1], "-features"))
187 return feature_status(argc-2, argv+2);
188 /* initialize calcomp routines early */
189 initfunc();
190 calcontext(RCCONTEXT);
191 /* set rcontrib defaults */
192 default_options();
193 /* option city */
194 for (i = 1; i < argc; i++) {
195 /* expand arguments */
196 while ((rval = expandarg(&argc, &argv, i)) > 0)
197 ;
198 if (rval < 0) {
199 sprintf(errmsg, "cannot expand '%s'", argv[i]);
200 error(SYSTEM, errmsg);
201 }
202 if (argv[i] == NULL || argv[i][0] != '-')
203 break; /* break from options */
204 if (!strcmp(argv[i], "-version")) {
205 puts(VersionID);
206 quit(0);
207 }
208 if (!strcmp(argv[i], "-defaults") ||
209 !strcmp(argv[i], "-help")) {
210 override_options();
211 printdefaults();
212 quit(0);
213 }
214 rval = getrenderopt(argc-i, argv+i);
215 if (rval >= 0) {
216 i += rval;
217 continue;
218 }
219 switch (argv[i][1]) {
220 case 'n': /* number of processes */
221 check(2,"i");
222 nproc = atoi(argv[++i]);
223 if (nproc < 0 && (nproc += RadSimulManager::GetNCores()) <= 0)
224 nproc = 1;
225 break;
226 case 'V': /* output contributions? */
227 rval = myRCmanager.HasFlag(RCcontrib);
228 check_bool(2,rval);
229 myRCmanager.SetFlag(RCcontrib, rval);
230 break;
231 case 'x': /* x resolution */
232 check(2,"i");
233 myRCmanager.xres = atoi(argv[++i]);
234 break;
235 case 'y': /* y resolution */
236 check(2,"i");
237 myRCmanager.yres = atoi(argv[++i]);
238 break;
239 case 'w': /* warnings on/off */
240 rval = (erract[WARNING].pf != NULL);
241 check_bool(2,rval);
242 if (rval) erract[WARNING].pf = wputs;
243 else erract[WARNING].pf = NULL;
244 break;
245 case 'l': /* limit distance */
246 if (argv[i][2] != 'd')
247 goto badopt;
248 rval = myRCmanager.HasFlag(RTlimDist);
249 check_bool(3,rval);
250 myRCmanager.SetFlag(RTlimDist, rval);
251 break;
252 case 'I': /* immed. irradiance */
253 rval = myRCmanager.HasFlag(RTimmIrrad);
254 check_bool(2,rval);
255 myRCmanager.SetFlag(RTimmIrrad, rval);
256 break;
257 case 'f': /* force or format */
258 if (argv[i][2] == 'o') {
259 check_bool(3,force_open);
260 break;
261 }
262 setformat(argv[i]+2);
263 myRCmanager.SetDataFormat(outfmt);
264 break;
265 case 'o': /* output file */
266 check(2,"s");
267 curout = argv[++i];
268 break;
269 case 'r': /* recover output */
270 check_bool(2,recover);
271 break;
272 case 'p': /* parameter setting(s) */
273 check(2,"s");
274 set_eparams(prms = argv[++i]);
275 break;
276 case 'c': /* sample count */
277 check(2,"i");
278 myRCmanager.accum = atoi(argv[++i]);
279 break;
280 case 'b': /* bin expression/count */
281 if (argv[i][2] == 'n') {
282 check(3,"s");
283 bincnt = (int)(eval(argv[++i]) + .5);
284 break;
285 }
286 check(2,"s");
287 binval = argv[++i];
288 break;
289 case 'm': /* modifier name */
290 check(2,"s");
291 myRCmanager.AddModifier(argv[++i], curout, prms, binval, bincnt);
292 break;
293 case 'M': /* file of modifier names */
294 check(2,"s");
295 myRCmanager.AddModFile(argv[++i], curout, prms, binval, bincnt);
296 break;
297 case 't': /* reporting interval */
298 check(2,"i");
299 report_intvl = atoi(argv[++i]);
300 break;
301 default:
302 goto badopt;
303 }
304 }
305 if (i != argc-1)
306 error(USER, "expected single octree argument");
307
308 override_options(); /* override some option settings */
309
310 if (!myRCmanager.GetOutput()) // check that we have work to do
311 error(USER, "missing required modifier argument");
312 // get ready to rock...
313 if (setspectrsamp(CNDX, WLPART) < 0)
314 error(USER, "unsupported spectral sampling");
315 /* set up signal handling */
316 sigdie(SIGINT, "Interrupt");
317 #ifdef SIGHUP
318 sigdie(SIGHUP, "Hangup");
319 #endif
320 sigdie(SIGTERM, "Terminate");
321 #ifdef SIGPIPE
322 sigdie(SIGPIPE, "Broken pipe");
323 #endif
324 #ifdef SIGALRM
325 sigdie(SIGALRM, "Alarm clock");
326 #endif
327 #ifdef SIGXCPU
328 sigdie(SIGXCPU, "CPU limit exceeded");
329 sigdie(SIGXFSZ, "File size exceeded");
330 #endif
331 #ifdef NICE
332 nice(NICE); /* lower priority */
333 #endif
334 // load octree
335 myRCmanager.LoadOctree(argv[argc-1]);
336 // add to header
337 myRCmanager.AddHeader(argc-1, argv);
338 {
339 char buf[128] = "SOFTWARE= ";
340 strcpy(buf+10, VersionID);
341 myRCmanager.AddHeader(buf);
342 }
343 // prepare output files
344 if (recover)
345 myRCmanager.outOp = RCOrecover;
346 else if (force_open)
347 myRCmanager.outOp = RCOforce;
348 else
349 myRCmanager.outOp = RCOnew;
350 // rval = # rows recovered
351 rval = myRCmanager.PrepOutput();
352 // check if recovered everything
353 if (rval >= myRCmanager.GetRowMax()) {
354 error(WARNING, "nothing left to compute");
355 quit(0);
356 }
357 rxcontrib(rval); /* trace ray contributions (loop) */
358
359 quit(0); /* exit clean */
360
361 badopt:
362 fprintf(stderr,
363 "Usage: %s [-V][-c count][-r][-e expr][-f source][-o ospec][-p p1=V1,p2=V2][-b binv][-bn N] {-m mod | -M file} [rtrace options] octree\n",
364 progname);
365 sprintf(errmsg, "command line error at '%s'", argv[i]);
366 error(USER, errmsg);
367 return(1); /* pro forma return */
368
369 #undef check
370 #undef check_bool
371 }
372
373
374 // skip specified number of bytes, return false if EOF
375 static bool
376 skipBytes(int n2skip)
377 {
378 while (n2skip-- > 0)
379 if (getchar() == EOF)
380 return false;
381 return true;
382 }
383
384
385 // skip specified number of whitespace-separated words, return false if EOF
386 static bool
387 skipWords(int n2skip)
388 {
389 int c;
390
391 while (n2skip-- > 0) {
392 do {
393 c = getchar();
394 } while (isspace(c));
395 do {
396 if (c == EOF) return false;
397 c = getchar();
398 } while (!isspace(c));
399 }
400 return true;
401 }
402
403
404 // read a bundle of myRCmanager.accum ray origins and directions
405 static bool
406 getRayBundle(FVECT *orig_dir = NULL)
407 {
408 int n2go = myRCmanager.accum;
409
410 switch (inpfmt) {
411 case 'a': // ASCII input
412 if (!orig_dir)
413 return skipWords(6*n2go);
414 while (n2go-- > 0) {
415 if (scanf(FVFORMAT, &orig_dir[0][0],
416 &orig_dir[0][1], &orig_dir[0][2]) != 3)
417 return false;
418 if (scanf(FVFORMAT, &orig_dir[1][0],
419 &orig_dir[1][1], &orig_dir[1][2]) != 3)
420 return false;
421 orig_dir += 2;
422 }
423 break;
424 case 'f': // float input
425 if (!orig_dir)
426 return skipBytes(6*sizeof(float)*n2go);
427 #ifdef SMLFLT
428 if (getbinary(orig_dir, sizeof(FVECT), 2*n2go, stdin) != 2*n2go)
429 return false;
430 orig_dir += 2*n2go;
431 #else
432 while (n2go-- > 0) {
433 float fvecs[6];
434 if (getbinary(fvecs, sizeof(fvecs), 1, stdin) != 1)
435 return false;
436 for (int i = 6; i--; )
437 orig_dir[0][i] = fvecs[i];
438 orig_dir += 2;
439 }
440 #endif
441 break;
442 case 'd': // double input
443 if (!orig_dir)
444 return skipBytes(6*sizeof(double)*n2go);
445 #ifndef SMLFLT
446 if (getbinary(orig_dir, sizeof(FVECT), 2*n2go, stdin) != 2*n2go)
447 return false;
448 orig_dir += 2*n2go;
449 #else
450 while (n2go-- > 0) {
451 double dvecs[6];
452 if (getbinary(dvecs, sizeof(dvecs), 1, stdin) != 1)
453 return false;
454 for (int i = 6; i--; )
455 orig_dir[0][i] = dvecs[i];
456 orig_dir += 2;
457 }
458 #endif
459 break;
460 default:
461 error(INTERNAL, "unsupported format in getRayBundle()");
462 return false;
463 }
464 n2go = myRCmanager.accum; // normalize directions
465 while (n2go-- > 0) {
466 orig_dir -= 2;
467 normalize(orig_dir[1]);
468 }
469 return true;
470 }
471
472
473 // Run loop to load data, report progress, etc.
474 void
475 rxcontrib(const int rstart)
476 {
477 const int totRows = myRCmanager.GetRowMax();
478 FVECT * odarr = (FVECT *)emalloc(sizeof(FVECT)*2*myRCmanager.accum);
479 time_t tstart, last_report;
480 int r = 0;
481
482 while (r < rstart) { // skip input rays already done
483 if (!getRayBundle())
484 goto readerr;
485 r++;
486 }
487 if (report_intvl > 0) { // set up reporting
488 if (r > 0) {
489 sprintf(errmsg, "recovered %.2f%% of total\n",
490 100.*r/totRows);
491 eputs(errmsg);
492 }
493 last_report = tstart = time(0);
494 }
495 // start children as requested
496 myRCmanager.SetThreadCount(nproc);
497
498 while (r < totRows) { // loop until done
499 time_t tnow;
500 if (!getRayBundle(odarr))
501 goto readerr;
502 if (myRCmanager.ComputeRecord(odarr) <= 0)
503 return; // error reported, hopefully...
504 r++;
505 if (report_intvl <= 0)
506 continue;
507 if (r == totRows) // need to finish up?
508 myRCmanager.SetThreadCount(1);
509 tnow = time(0);
510 if ((r < totRows) & (tnow < last_report+report_intvl))
511 continue;
512 sprintf(errmsg, "%.2f%% done after %.3f hours\n",
513 100.*myRCmanager.GetRowFinished()/totRows,
514 (1./3600.)*(tnow - tstart));
515 eputs(errmsg);
516 last_report = tnow;
517 }
518 efree(odarr);
519 return;
520 readerr:
521 sprintf(errmsg, "unexpected EOF on standard input (record %d of %d)",
522 r, totRows);
523 error(USER, errmsg);
524 }
525
526
527 void
528 wputs( /* warning output function */
529 const char *s
530 )
531 {
532 if (!erract[WARNING].pf) return;
533 int lasterrno = errno;
534 eputs(s);
535 errno = lasterrno;
536 }
537
538
539 void
540 eputs( /* put string to stderr */
541 const char *s
542 )
543 {
544 static int midline = 0;
545
546 if (!*s)
547 return;
548 if (!midline++) {
549 fputs(progname, stderr);
550 fputs(": ", stderr);
551 }
552 fputs(s, stderr);
553 if (s[strlen(s)-1] == '\n') {
554 fflush(stderr);
555 midline = 0;
556 }
557 }
558
559
560 /* Exit program */
561 void
562 quit(
563 int code
564 )
565 {
566 myRCmanager.FlushQueue(); // leave nothing in queue
567
568 exit(code);
569 }