1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: rxcmain.cpp,v 2.14 2025/01/02 16:16:49 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 'e': /* .cal expression */ |
246 |
check(2,"s"); |
247 |
scompile(argv[++i], NULL, 0); |
248 |
break; |
249 |
case 'l': /* limit distance */ |
250 |
if (argv[i][2] != 'd') |
251 |
goto badopt; |
252 |
rval = myRCmanager.HasFlag(RTlimDist); |
253 |
check_bool(3,rval); |
254 |
myRCmanager.SetFlag(RTlimDist, rval); |
255 |
break; |
256 |
case 'I': /* immed. irradiance */ |
257 |
rval = myRCmanager.HasFlag(RTimmIrrad); |
258 |
check_bool(2,rval); |
259 |
myRCmanager.SetFlag(RTimmIrrad, rval); |
260 |
break; |
261 |
case 'f': /* .cal file or force or format */ |
262 |
if (!argv[i][2]) { |
263 |
check(2,"s"); |
264 |
loadfunc(argv[++i]); |
265 |
break; |
266 |
} |
267 |
if (argv[i][2] == 'o') { |
268 |
check_bool(3,force_open); |
269 |
break; |
270 |
} |
271 |
setformat(argv[i]+2); |
272 |
myRCmanager.SetDataFormat(outfmt); |
273 |
break; |
274 |
case 'o': /* output file */ |
275 |
check(2,"s"); |
276 |
curout = argv[++i]; |
277 |
break; |
278 |
case 'r': /* recover output */ |
279 |
check_bool(2,recover); |
280 |
break; |
281 |
case 'p': /* parameter setting(s) */ |
282 |
check(2,"s"); |
283 |
set_eparams(prms = argv[++i]); |
284 |
break; |
285 |
case 'c': /* sample count */ |
286 |
check(2,"i"); |
287 |
myRCmanager.accum = atoi(argv[++i]); |
288 |
break; |
289 |
case 'b': /* bin expression/count */ |
290 |
if (argv[i][2] == 'n') { |
291 |
check(3,"s"); |
292 |
bincnt = (int)(eval(argv[++i]) + .5); |
293 |
break; |
294 |
} |
295 |
check(2,"s"); |
296 |
binval = argv[++i]; |
297 |
break; |
298 |
case 'm': /* modifier name */ |
299 |
check(2,"s"); |
300 |
myRCmanager.AddModifier(argv[++i], curout, prms, binval, bincnt); |
301 |
break; |
302 |
case 'M': /* file of modifier names */ |
303 |
check(2,"s"); |
304 |
myRCmanager.AddModFile(argv[++i], curout, prms, binval, bincnt); |
305 |
break; |
306 |
case 't': /* reporting interval */ |
307 |
check(2,"i"); |
308 |
report_intvl = atoi(argv[++i]); |
309 |
break; |
310 |
default: |
311 |
goto badopt; |
312 |
} |
313 |
} |
314 |
if (i != argc-1) |
315 |
error(USER, "expected single octree argument"); |
316 |
|
317 |
override_options(); /* override some option settings */ |
318 |
|
319 |
if (!myRCmanager.GetOutput()) // check that we have work to do |
320 |
error(USER, "missing required modifier argument"); |
321 |
// get ready to rock... |
322 |
if (setspectrsamp(CNDX, WLPART) < 0) |
323 |
error(USER, "unsupported spectral sampling"); |
324 |
/* set up signal handling */ |
325 |
sigdie(SIGINT, "Interrupt"); |
326 |
#ifdef SIGHUP |
327 |
sigdie(SIGHUP, "Hangup"); |
328 |
#endif |
329 |
sigdie(SIGTERM, "Terminate"); |
330 |
#ifdef SIGPIPE |
331 |
sigdie(SIGPIPE, "Broken pipe"); |
332 |
#endif |
333 |
#ifdef SIGALRM |
334 |
sigdie(SIGALRM, "Alarm clock"); |
335 |
#endif |
336 |
#ifdef SIGXCPU |
337 |
sigdie(SIGXCPU, "CPU limit exceeded"); |
338 |
sigdie(SIGXFSZ, "File size exceeded"); |
339 |
#endif |
340 |
#ifdef NICE |
341 |
nice(NICE); /* lower priority */ |
342 |
#endif |
343 |
// load octree |
344 |
myRCmanager.LoadOctree(argv[argc-1]); |
345 |
// add to header |
346 |
myRCmanager.AddHeader(argc-1, argv); |
347 |
// prepare output files |
348 |
if (recover) |
349 |
myRCmanager.outOp = RCOrecover; |
350 |
else if (force_open) |
351 |
myRCmanager.outOp = RCOforce; |
352 |
else |
353 |
myRCmanager.outOp = RCOnew; |
354 |
// rval = # rows recovered |
355 |
rval = myRCmanager.PrepOutput(); |
356 |
// check if recovered everything |
357 |
if (rval >= myRCmanager.GetRowMax()) { |
358 |
error(WARNING, "nothing left to compute"); |
359 |
quit(0); |
360 |
} |
361 |
rxcontrib(rval); /* trace ray contributions (loop) */ |
362 |
|
363 |
quit(0); /* exit clean */ |
364 |
|
365 |
badopt: |
366 |
fprintf(stderr, |
367 |
"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", |
368 |
progname); |
369 |
sprintf(errmsg, "command line error at '%s'", argv[i]); |
370 |
error(USER, errmsg); |
371 |
return(1); /* pro forma return */ |
372 |
|
373 |
#undef check |
374 |
#undef check_bool |
375 |
} |
376 |
|
377 |
|
378 |
// skip specified number of bytes, return false if EOF |
379 |
static bool |
380 |
skipBytes(int n2skip) |
381 |
{ |
382 |
while (n2skip-- > 0) |
383 |
if (getchar() == EOF) |
384 |
return false; |
385 |
return true; |
386 |
} |
387 |
|
388 |
|
389 |
// skip specified number of whitespace-separated words, return false if EOF |
390 |
static bool |
391 |
skipWords(int n2skip) |
392 |
{ |
393 |
int c; |
394 |
|
395 |
while (n2skip-- > 0) { |
396 |
do { |
397 |
c = getchar(); |
398 |
} while (isspace(c)); |
399 |
do { |
400 |
if (c == EOF) return false; |
401 |
c = getchar(); |
402 |
} while (!isspace(c)); |
403 |
} |
404 |
return true; |
405 |
} |
406 |
|
407 |
|
408 |
// read a bundle of myRCmanager.accum ray origins and directions |
409 |
static bool |
410 |
getRayBundle(FVECT *orig_dir = NULL) |
411 |
{ |
412 |
int n2go = myRCmanager.accum; |
413 |
|
414 |
switch (inpfmt) { |
415 |
case 'a': // ASCII input |
416 |
if (!orig_dir) |
417 |
return skipWords(6*n2go); |
418 |
while (n2go-- > 0) { |
419 |
if (scanf(FVFORMAT, &orig_dir[0][0], |
420 |
&orig_dir[0][1], &orig_dir[0][2]) != 3) |
421 |
return false; |
422 |
if (scanf(FVFORMAT, &orig_dir[1][0], |
423 |
&orig_dir[1][1], &orig_dir[1][2]) != 3) |
424 |
return false; |
425 |
orig_dir += 2; |
426 |
} |
427 |
break; |
428 |
case 'f': // float input |
429 |
if (!orig_dir) |
430 |
return skipBytes(6*sizeof(float)*n2go); |
431 |
#ifdef SMLFLT |
432 |
if (getbinary(orig_dir, sizeof(FVECT), 2*n2go, stdin) != 2*n2go) |
433 |
return false; |
434 |
orig_dir += 2*n2go; |
435 |
#else |
436 |
while (n2go-- > 0) { |
437 |
float fvecs[6]; |
438 |
if (getbinary(fvecs, sizeof(fvecs), 1, stdin) != 1) |
439 |
return false; |
440 |
for (int i = 6; i--; ) |
441 |
orig_dir[0][i] = fvecs[i]; |
442 |
orig_dir += 2; |
443 |
} |
444 |
#endif |
445 |
break; |
446 |
case 'd': // double input |
447 |
if (!orig_dir) |
448 |
return skipBytes(6*sizeof(double)*n2go); |
449 |
#ifndef SMLFLT |
450 |
if (getbinary(orig_dir, sizeof(FVECT), 2*n2go, stdin) != 2*n2go) |
451 |
return false; |
452 |
orig_dir += 2*n2go; |
453 |
#else |
454 |
while (n2go-- > 0) { |
455 |
double dvecs[6]; |
456 |
if (getbinary(dvecs, sizeof(dvecs), 1, stdin) != 1) |
457 |
return false; |
458 |
for (int i = 6; i--; ) |
459 |
orig_dir[0][i] = dvecs[i]; |
460 |
orig_dir += 2; |
461 |
} |
462 |
#endif |
463 |
break; |
464 |
default: |
465 |
error(INTERNAL, "unsupported format in getRayBundle()"); |
466 |
return false; |
467 |
} |
468 |
n2go = myRCmanager.accum; // normalize directions |
469 |
while (n2go-- > 0) { |
470 |
orig_dir -= 2; |
471 |
normalize(orig_dir[1]); |
472 |
} |
473 |
return true; |
474 |
} |
475 |
|
476 |
|
477 |
// Run loop to load data, report progress, etc. |
478 |
void |
479 |
rxcontrib(const int rstart) |
480 |
{ |
481 |
const int totRows = myRCmanager.GetRowMax(); |
482 |
FVECT * odarr = (FVECT *)emalloc(sizeof(FVECT)*2*myRCmanager.accum); |
483 |
time_t tstart, last_report; |
484 |
int r = 0; |
485 |
|
486 |
while (r < rstart) { // skip input rays already done |
487 |
if (!getRayBundle()) |
488 |
goto readerr; |
489 |
r++; |
490 |
} |
491 |
if (report_intvl > 0) { // set up reporting |
492 |
if (r > 0) { |
493 |
sprintf(errmsg, "recovered %.2f%% of total\n", |
494 |
100.*r/totRows); |
495 |
eputs(errmsg); |
496 |
} |
497 |
last_report = tstart = time(0); |
498 |
} |
499 |
// start children as requested |
500 |
myRCmanager.SetThreadCount(nproc); |
501 |
|
502 |
while (r < totRows) { // loop until done |
503 |
time_t tnow; |
504 |
if (!getRayBundle(odarr)) |
505 |
goto readerr; |
506 |
if (myRCmanager.ComputeRecord(odarr) <= 0) |
507 |
return; // error reported, hopefully... |
508 |
r++; |
509 |
if (report_intvl <= 0) |
510 |
continue; |
511 |
if (r == totRows) // need to finish up? |
512 |
myRCmanager.SetThreadCount(1); |
513 |
tnow = time(0); |
514 |
if ((r < totRows) & (tnow < last_report+report_intvl)) |
515 |
continue; |
516 |
sprintf(errmsg, "%.2f%% done after %.3f hours\n", |
517 |
100.*myRCmanager.GetRowFinished()/totRows, |
518 |
(1./3600.)*(tnow - tstart)); |
519 |
eputs(errmsg); |
520 |
last_report = tnow; |
521 |
} |
522 |
efree(odarr); |
523 |
return; |
524 |
readerr: |
525 |
sprintf(errmsg, "unexpected EOF on standard input (record %d of %d)", |
526 |
r, totRows); |
527 |
error(USER, errmsg); |
528 |
} |
529 |
|
530 |
|
531 |
void |
532 |
wputs( /* warning output function */ |
533 |
const char *s |
534 |
) |
535 |
{ |
536 |
if (!erract[WARNING].pf) return; |
537 |
int lasterrno = errno; |
538 |
eputs(s); |
539 |
errno = lasterrno; |
540 |
} |
541 |
|
542 |
|
543 |
void |
544 |
eputs( /* put string to stderr */ |
545 |
const char *s |
546 |
) |
547 |
{ |
548 |
static int midline = 0; |
549 |
|
550 |
if (!*s) |
551 |
return; |
552 |
if (!midline++) { |
553 |
fputs(progname, stderr); |
554 |
fputs(": ", stderr); |
555 |
} |
556 |
fputs(s, stderr); |
557 |
if (s[strlen(s)-1] == '\n') { |
558 |
fflush(stderr); |
559 |
midline = 0; |
560 |
} |
561 |
} |
562 |
|
563 |
|
564 |
/* Exit program */ |
565 |
void |
566 |
quit( |
567 |
int code |
568 |
) |
569 |
{ |
570 |
myRCmanager.FlushQueue(); // leave nothing in queue |
571 |
|
572 |
exit(code); |
573 |
} |