1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: rxcmain.cpp,v 2.17 2025/04/22 17:12:25 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 |
RcontribSimulManager myRCmanager; // global rcontrib simulation manager |
27 |
|
28 |
#define RCONTRIB_FEATURES "Multiprocessing\n" \ |
29 |
"Accumulation\nRecovery\n" \ |
30 |
"ImmediateIrradiance\n" \ |
31 |
"ProgressReporting\nDistanceLimiting\n" \ |
32 |
"InputFormats=a,f,d\nOutputFormats=f,d,c\n" \ |
33 |
"Outputs=V,W\n" \ |
34 |
"OutputCS=RGB,spec\n" |
35 |
|
36 |
static void rxcontrib(const int rstart = 0); |
37 |
|
38 |
static void |
39 |
printdefaults(void) /* print default values to stdout */ |
40 |
{ |
41 |
printf("-c %-5d\t\t\t# accumulated rays per record\n", myRCmanager.accum); |
42 |
printf(myRCmanager.HasFlag(RCcontrib) ? |
43 |
"-V+\t\t\t\t# output contributions\n" : |
44 |
"-V-\t\t\t\t# output coefficients\n"); |
45 |
if (myRCmanager.HasFlag(RTimmIrrad)) |
46 |
printf("-I+\t\t\t\t# immediate irradiance on\n"); |
47 |
printf("-n %-2d\t\t\t\t# number of rendering processes\n", nproc); |
48 |
printf("-x %-9d\t\t\t# x resolution\n", myRCmanager.xres); |
49 |
printf("-y %-9d\t\t\t# y resolution\n", myRCmanager.yres); |
50 |
printf(myRCmanager.HasFlag(RTlimDist) ? |
51 |
"-ld+\t\t\t\t# limit distance on\n" : |
52 |
"-ld-\t\t\t\t# limit distance off\n"); |
53 |
printf("-f%c%c\t\t\t\t# format input/output = %s/%s\n", |
54 |
inpfmt, outfmt, formstr(inpfmt), formstr(outfmt)); |
55 |
if (report_intvl > 0) |
56 |
printf("-t %-9d\t\t\t# time between reports\n", report_intvl); |
57 |
printf(erract[WARNING].pf != NULL ? |
58 |
"-w+\t\t\t\t# warning messages on\n" : |
59 |
"-w-\t\t\t\t# warning messages off\n"); |
60 |
print_rdefaults(); |
61 |
} |
62 |
|
63 |
|
64 |
static void |
65 |
onsig( /* fatal signal */ |
66 |
int signo |
67 |
) |
68 |
{ |
69 |
static int gotsig = 0; |
70 |
|
71 |
if (gotsig++) /* two signals and we're gone! */ |
72 |
_exit(signo); |
73 |
|
74 |
#ifdef SIGALRM |
75 |
alarm(600); /* allow 10 minutes to clean up */ |
76 |
signal(SIGALRM, SIG_DFL); /* make certain we do die */ |
77 |
#endif |
78 |
eputs("signal - "); |
79 |
eputs(sigerr[signo]); |
80 |
eputs("\n"); |
81 |
quit(3); |
82 |
} |
83 |
|
84 |
|
85 |
static void |
86 |
sigdie( /* set fatal signal */ |
87 |
int signo, |
88 |
const char *msg |
89 |
) |
90 |
{ |
91 |
if (signal(signo, onsig) == SIG_IGN) |
92 |
signal(signo, SIG_IGN); |
93 |
sigerr[signo] = msg; |
94 |
} |
95 |
|
96 |
/* set input/output format */ |
97 |
static void |
98 |
setformat(const char *fmt) |
99 |
{ |
100 |
switch (fmt[0]) { |
101 |
case 'f': |
102 |
case 'd': |
103 |
SET_FILE_BINARY(stdin); |
104 |
/* fall through */ |
105 |
case 'a': |
106 |
inpfmt = fmt[0]; |
107 |
break; |
108 |
default: |
109 |
goto fmterr; |
110 |
} |
111 |
switch (fmt[1]) { |
112 |
case '\0': |
113 |
if (inpfmt == 'a') |
114 |
goto fmterr; |
115 |
outfmt = inpfmt; |
116 |
return; |
117 |
case 'f': |
118 |
case 'd': |
119 |
case 'c': |
120 |
outfmt = fmt[1]; |
121 |
break; |
122 |
default: |
123 |
goto fmterr; |
124 |
} |
125 |
if (!fmt[2]) |
126 |
return; |
127 |
fmterr: |
128 |
sprintf(errmsg, "Unsupported i/o format: -f%s", fmt); |
129 |
error(USER, errmsg); |
130 |
} |
131 |
|
132 |
/* Set default options */ |
133 |
static void |
134 |
default_options(void) |
135 |
{ |
136 |
rand_samp = 1; |
137 |
dstrsrc = 0.9; |
138 |
directrelay = 3; |
139 |
vspretest = 512; |
140 |
srcsizerat = .2; |
141 |
specthresh = .02; |
142 |
specjitter = 1.; |
143 |
maxdepth = -10; |
144 |
minweight = 2e-3; |
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ambres = 256; |
146 |
ambdiv = 350; |
147 |
ambounce = 1; |
148 |
} |
149 |
|
150 |
/* Set overriding options */ |
151 |
static void |
152 |
override_options(void) |
153 |
{ |
154 |
shadthresh = 0; |
155 |
ambssamp = 0; |
156 |
ambacc = 0; |
157 |
} |
158 |
|
159 |
int |
160 |
main(int argc, char *argv[]) |
161 |
{ |
162 |
#define check(ol,al) if (argv[i][ol] || \ |
163 |
badarg(argc-i-1,argv+i+1,al)) \ |
164 |
goto badopt |
165 |
#define check_bool(olen,var) switch (argv[i][olen]) { \ |
166 |
case '\0': var = !var; break; \ |
167 |
case 'y': case 'Y': case 't': case 'T': \ |
168 |
case '+': case '1': var = 1; break; \ |
169 |
case 'n': case 'N': case 'f': case 'F': \ |
170 |
case '-': case '0': var = 0; break; \ |
171 |
default: goto badopt; } |
172 |
int force_open = 0; |
173 |
int recover = 0; |
174 |
char *curout = NULL; |
175 |
char *prms = NULL; |
176 |
char *binval = NULL; |
177 |
int bincnt = 0; |
178 |
int rval; |
179 |
int i; |
180 |
/* global program name */ |
181 |
progname = argv[0]; |
182 |
/* feature check only? */ |
183 |
strcat(RFeatureList, RCONTRIB_FEATURES); |
184 |
if (argc > 1 && !strcmp(argv[1], "-features")) |
185 |
return feature_status(argc-2, argv+2); |
186 |
/* initialize calcomp routines early */ |
187 |
initfunc(); |
188 |
calcontext(RCCONTEXT); |
189 |
/* set rcontrib defaults */ |
190 |
default_options(); |
191 |
/* option city */ |
192 |
for (i = 1; i < argc; i++) { |
193 |
/* expand arguments */ |
194 |
while ((rval = expandarg(&argc, &argv, i)) > 0) |
195 |
; |
196 |
if (rval < 0) { |
197 |
sprintf(errmsg, "cannot expand '%s'", argv[i]); |
198 |
error(SYSTEM, errmsg); |
199 |
} |
200 |
if (argv[i] == NULL || argv[i][0] != '-') |
201 |
break; /* break from options */ |
202 |
if (!strcmp(argv[i], "-version")) { |
203 |
puts(VersionID); |
204 |
quit(0); |
205 |
} |
206 |
if (!strcmp(argv[i], "-defaults") || |
207 |
!strcmp(argv[i], "-help")) { |
208 |
override_options(); |
209 |
printdefaults(); |
210 |
quit(0); |
211 |
} |
212 |
rval = getrenderopt(argc-i, argv+i); |
213 |
if (rval >= 0) { |
214 |
i += rval; |
215 |
continue; |
216 |
} |
217 |
switch (argv[i][1]) { |
218 |
case 'n': /* number of processes */ |
219 |
check(2,"i"); |
220 |
nproc = atoi(argv[++i]); |
221 |
if (nproc < 0 && (nproc += RadSimulManager::GetNCores()) <= 0) |
222 |
nproc = 1; |
223 |
break; |
224 |
case 'V': /* output contributions? */ |
225 |
rval = myRCmanager.HasFlag(RCcontrib); |
226 |
check_bool(2,rval); |
227 |
myRCmanager.SetFlag(RCcontrib, rval); |
228 |
break; |
229 |
case 'x': /* x resolution */ |
230 |
check(2,"i"); |
231 |
myRCmanager.xres = atoi(argv[++i]); |
232 |
break; |
233 |
case 'y': /* y resolution */ |
234 |
check(2,"i"); |
235 |
myRCmanager.yres = atoi(argv[++i]); |
236 |
break; |
237 |
case 'w': /* warnings on/off */ |
238 |
rval = (erract[WARNING].pf != NULL); |
239 |
check_bool(2,rval); |
240 |
if (rval) erract[WARNING].pf = wputs; |
241 |
else erract[WARNING].pf = NULL; |
242 |
break; |
243 |
case 'l': /* limit distance */ |
244 |
if (argv[i][2] != 'd') |
245 |
goto badopt; |
246 |
rval = myRCmanager.HasFlag(RTlimDist); |
247 |
check_bool(3,rval); |
248 |
myRCmanager.SetFlag(RTlimDist, rval); |
249 |
break; |
250 |
case 'I': /* immed. irradiance */ |
251 |
rval = myRCmanager.HasFlag(RTimmIrrad); |
252 |
check_bool(2,rval); |
253 |
myRCmanager.SetFlag(RTimmIrrad, rval); |
254 |
break; |
255 |
case 'f': /* force or format */ |
256 |
if (argv[i][2] == 'o') { |
257 |
check_bool(3,force_open); |
258 |
break; |
259 |
} |
260 |
setformat(argv[i]+2); |
261 |
myRCmanager.SetDataFormat(outfmt); |
262 |
break; |
263 |
case 'o': /* output file */ |
264 |
check(2,"s"); |
265 |
curout = argv[++i]; |
266 |
break; |
267 |
case 'r': /* recover output */ |
268 |
check_bool(2,recover); |
269 |
break; |
270 |
case 'p': /* parameter setting(s) */ |
271 |
check(2,"s"); |
272 |
set_eparams(prms = argv[++i]); |
273 |
break; |
274 |
case 'c': /* sample count */ |
275 |
check(2,"i"); |
276 |
myRCmanager.accum = atoi(argv[++i]); |
277 |
break; |
278 |
case 'b': /* bin expression/count */ |
279 |
if (argv[i][2] == 'n') { |
280 |
check(3,"s"); |
281 |
bincnt = (int)(eval(argv[++i]) + .5); |
282 |
break; |
283 |
} |
284 |
check(2,"s"); |
285 |
binval = argv[++i]; |
286 |
break; |
287 |
case 'm': /* modifier name */ |
288 |
check(2,"s"); |
289 |
myRCmanager.AddModifier(argv[++i], curout, prms, binval, bincnt); |
290 |
break; |
291 |
case 'M': /* file of modifier names */ |
292 |
check(2,"s"); |
293 |
myRCmanager.AddModFile(argv[++i], curout, prms, binval, bincnt); |
294 |
break; |
295 |
case 't': /* reporting interval */ |
296 |
check(2,"i"); |
297 |
report_intvl = atoi(argv[++i]); |
298 |
break; |
299 |
default: |
300 |
goto badopt; |
301 |
} |
302 |
} |
303 |
if (i != argc-1) |
304 |
error(USER, "expected single octree argument"); |
305 |
|
306 |
override_options(); /* override some option settings */ |
307 |
|
308 |
if (!myRCmanager.GetOutput()) // check that we have work to do |
309 |
error(USER, "missing required modifier argument"); |
310 |
// get ready to rock... |
311 |
if (setspectrsamp(CNDX, WLPART) < 0) |
312 |
error(USER, "unsupported spectral sampling"); |
313 |
/* set up signal handling */ |
314 |
sigdie(SIGINT, "Interrupt"); |
315 |
#ifdef SIGHUP |
316 |
sigdie(SIGHUP, "Hangup"); |
317 |
#endif |
318 |
sigdie(SIGTERM, "Terminate"); |
319 |
#ifdef SIGPIPE |
320 |
sigdie(SIGPIPE, "Broken pipe"); |
321 |
#endif |
322 |
#ifdef SIGALRM |
323 |
sigdie(SIGALRM, "Alarm clock"); |
324 |
#endif |
325 |
#ifdef SIGXCPU |
326 |
sigdie(SIGXCPU, "CPU limit exceeded"); |
327 |
sigdie(SIGXFSZ, "File size exceeded"); |
328 |
#endif |
329 |
#ifdef NICE |
330 |
nice(NICE); /* lower priority */ |
331 |
#endif |
332 |
// load octree |
333 |
myRCmanager.LoadOctree(argv[argc-1]); |
334 |
// add to header |
335 |
myRCmanager.AddHeader(argc-1, argv); |
336 |
{ |
337 |
char buf[128] = "SOFTWARE= "; |
338 |
strcpy(buf+10, VersionID); |
339 |
myRCmanager.AddHeader(buf); |
340 |
} |
341 |
// prepare output files |
342 |
if (recover) |
343 |
myRCmanager.outOp = RCOrecover; |
344 |
else if (force_open) |
345 |
myRCmanager.outOp = RCOforce; |
346 |
else |
347 |
myRCmanager.outOp = RCOnew; |
348 |
// rval = # rows recovered |
349 |
rval = myRCmanager.PrepOutput(); |
350 |
// check if recovered everything |
351 |
if (rval >= myRCmanager.GetRowMax()) { |
352 |
error(WARNING, "nothing left to compute"); |
353 |
quit(0); |
354 |
} |
355 |
rxcontrib(rval); /* trace ray contributions (loop) */ |
356 |
|
357 |
quit(0); /* exit clean */ |
358 |
|
359 |
badopt: |
360 |
fprintf(stderr, |
361 |
"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", |
362 |
progname); |
363 |
sprintf(errmsg, "command line error at '%s'", argv[i]); |
364 |
error(USER, errmsg); |
365 |
return(1); /* pro forma return */ |
366 |
|
367 |
#undef check |
368 |
#undef check_bool |
369 |
} |
370 |
|
371 |
|
372 |
// skip specified number of bytes, return false if EOF |
373 |
static bool |
374 |
skipBytes(int n2skip) |
375 |
{ |
376 |
while (n2skip-- > 0) |
377 |
if (getchar() == EOF) |
378 |
return false; |
379 |
return true; |
380 |
} |
381 |
|
382 |
|
383 |
// skip specified number of whitespace-separated words, return false if EOF |
384 |
static bool |
385 |
skipWords(int n2skip) |
386 |
{ |
387 |
int c; |
388 |
|
389 |
while (n2skip-- > 0) { |
390 |
do { |
391 |
c = getchar(); |
392 |
} while (isspace(c)); |
393 |
do { |
394 |
if (c == EOF) return false; |
395 |
c = getchar(); |
396 |
} while (!isspace(c)); |
397 |
} |
398 |
return true; |
399 |
} |
400 |
|
401 |
|
402 |
// read a bundle of myRCmanager.accum ray origins and directions |
403 |
static bool |
404 |
getRayBundle(FVECT *orig_dir = NULL) |
405 |
{ |
406 |
int n2go = myRCmanager.accum; |
407 |
|
408 |
switch (inpfmt) { |
409 |
case 'a': // ASCII input |
410 |
if (!orig_dir) |
411 |
return skipWords(6*n2go); |
412 |
while (n2go-- > 0) { |
413 |
if (scanf(FVFORMAT, &orig_dir[0][0], |
414 |
&orig_dir[0][1], &orig_dir[0][2]) != 3) |
415 |
return false; |
416 |
if (scanf(FVFORMAT, &orig_dir[1][0], |
417 |
&orig_dir[1][1], &orig_dir[1][2]) != 3) |
418 |
return false; |
419 |
orig_dir += 2; |
420 |
} |
421 |
break; |
422 |
case 'f': // float input |
423 |
if (!orig_dir) |
424 |
return skipBytes(6*sizeof(float)*n2go); |
425 |
#ifdef SMLFLT |
426 |
if (getbinary(orig_dir, sizeof(FVECT), 2*n2go, stdin) != 2*n2go) |
427 |
return false; |
428 |
orig_dir += 2*n2go; |
429 |
#else |
430 |
while (n2go-- > 0) { |
431 |
float fvecs[6]; |
432 |
if (getbinary(fvecs, sizeof(fvecs), 1, stdin) != 1) |
433 |
return false; |
434 |
for (int i = 6; i--; ) |
435 |
orig_dir[0][i] = fvecs[i]; |
436 |
orig_dir += 2; |
437 |
} |
438 |
#endif |
439 |
break; |
440 |
case 'd': // double input |
441 |
if (!orig_dir) |
442 |
return skipBytes(6*sizeof(double)*n2go); |
443 |
#ifndef SMLFLT |
444 |
if (getbinary(orig_dir, sizeof(FVECT), 2*n2go, stdin) != 2*n2go) |
445 |
return false; |
446 |
orig_dir += 2*n2go; |
447 |
#else |
448 |
while (n2go-- > 0) { |
449 |
double dvecs[6]; |
450 |
if (getbinary(dvecs, sizeof(dvecs), 1, stdin) != 1) |
451 |
return false; |
452 |
for (int i = 6; i--; ) |
453 |
orig_dir[0][i] = dvecs[i]; |
454 |
orig_dir += 2; |
455 |
} |
456 |
#endif |
457 |
break; |
458 |
default: |
459 |
error(INTERNAL, "unsupported format in getRayBundle()"); |
460 |
return false; |
461 |
} |
462 |
n2go = myRCmanager.accum; // normalize directions |
463 |
while (n2go-- > 0) { |
464 |
orig_dir -= 2; |
465 |
normalize(orig_dir[1]); |
466 |
} |
467 |
return true; |
468 |
} |
469 |
|
470 |
|
471 |
// Run loop to load data, report progress, etc. |
472 |
void |
473 |
rxcontrib(const int rstart) |
474 |
{ |
475 |
const int totRows = myRCmanager.GetRowMax(); |
476 |
FVECT * odarr = (FVECT *)emalloc(sizeof(FVECT)*2*myRCmanager.accum); |
477 |
time_t tstart, last_report; |
478 |
int r = 0; |
479 |
|
480 |
while (r < rstart) { // skip input rays already done |
481 |
if (!getRayBundle()) |
482 |
goto readerr; |
483 |
r++; |
484 |
} |
485 |
if (report_intvl > 0) { // set up reporting |
486 |
if (r > 0) { |
487 |
sprintf(errmsg, "recovered %.2f%% of total\n", |
488 |
100.*r/totRows); |
489 |
eputs(errmsg); |
490 |
} |
491 |
last_report = tstart = time(0); |
492 |
} |
493 |
// start children as requested |
494 |
myRCmanager.SetThreadCount(nproc); |
495 |
|
496 |
while (r < totRows) { // loop until done |
497 |
time_t tnow; |
498 |
if (!getRayBundle(odarr)) |
499 |
goto readerr; |
500 |
if (myRCmanager.ComputeRecord(odarr) <= 0) |
501 |
return; // error reported, hopefully... |
502 |
r++; |
503 |
if (report_intvl <= 0) |
504 |
continue; |
505 |
if (r == totRows) // need to finish up? |
506 |
myRCmanager.SetThreadCount(1); |
507 |
tnow = time(0); |
508 |
if ((r < totRows) & (tnow < last_report+report_intvl)) |
509 |
continue; |
510 |
sprintf(errmsg, "%.2f%% done after %.3f hours\n", |
511 |
100.*myRCmanager.GetRowFinished()/totRows, |
512 |
(1./3600.)*(tnow - tstart)); |
513 |
eputs(errmsg); |
514 |
last_report = tnow; |
515 |
} |
516 |
efree(odarr); |
517 |
return; |
518 |
readerr: |
519 |
sprintf(errmsg, "unexpected EOF on standard input (record %d of %d)", |
520 |
r, totRows); |
521 |
error(USER, errmsg); |
522 |
} |
523 |
|
524 |
|
525 |
void |
526 |
wputs( /* warning output function */ |
527 |
const char *s |
528 |
) |
529 |
{ |
530 |
if (!erract[WARNING].pf) return; |
531 |
int lasterrno = errno; |
532 |
eputs(s); |
533 |
errno = lasterrno; |
534 |
} |
535 |
|
536 |
|
537 |
void |
538 |
eputs( /* put string to stderr */ |
539 |
const char *s |
540 |
) |
541 |
{ |
542 |
static int midline = 0; |
543 |
|
544 |
if (!*s) |
545 |
return; |
546 |
if (!midline++) { |
547 |
fputs(progname, stderr); |
548 |
fputs(": ", stderr); |
549 |
} |
550 |
fputs(s, stderr); |
551 |
if (s[strlen(s)-1] == '\n') { |
552 |
fflush(stderr); |
553 |
midline = 0; |
554 |
} |
555 |
} |
556 |
|
557 |
|
558 |
/* Exit program */ |
559 |
void |
560 |
quit( |
561 |
int code |
562 |
) |
563 |
{ |
564 |
myRCmanager.FlushQueue(); // leave nothing in queue |
565 |
|
566 |
exit(code); |
567 |
} |