| 1 |
#ifndef lint
|
| 2 |
static const char RCSid[] = "$Id$";
|
| 3 |
#endif
|
| 4 |
/*
|
| 5 |
* rtmain.c - main for rtrace per-ray calculation program
|
| 6 |
*/
|
| 7 |
|
| 8 |
/* ====================================================================
|
| 9 |
* The Radiance Software License, Version 1.0
|
| 10 |
*
|
| 11 |
* Copyright (c) 1990 - 2002 The Regents of the University of California,
|
| 12 |
* through Lawrence Berkeley National Laboratory. All rights reserved.
|
| 13 |
*
|
| 14 |
* Redistribution and use in source and binary forms, with or without
|
| 15 |
* modification, are permitted provided that the following conditions
|
| 16 |
* are met:
|
| 17 |
*
|
| 18 |
* 1. Redistributions of source code must retain the above copyright
|
| 19 |
* notice, this list of conditions and the following disclaimer.
|
| 20 |
*
|
| 21 |
* 2. Redistributions in binary form must reproduce the above copyright
|
| 22 |
* notice, this list of conditions and the following disclaimer in
|
| 23 |
* the documentation and/or other materials provided with the
|
| 24 |
* distribution.
|
| 25 |
*
|
| 26 |
* 3. The end-user documentation included with the redistribution,
|
| 27 |
* if any, must include the following acknowledgment:
|
| 28 |
* "This product includes Radiance software
|
| 29 |
* (http://radsite.lbl.gov/)
|
| 30 |
* developed by the Lawrence Berkeley National Laboratory
|
| 31 |
* (http://www.lbl.gov/)."
|
| 32 |
* Alternately, this acknowledgment may appear in the software itself,
|
| 33 |
* if and wherever such third-party acknowledgments normally appear.
|
| 34 |
*
|
| 35 |
* 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
|
| 36 |
* and "The Regents of the University of California" must
|
| 37 |
* not be used to endorse or promote products derived from this
|
| 38 |
* software without prior written permission. For written
|
| 39 |
* permission, please contact [email protected].
|
| 40 |
*
|
| 41 |
* 5. Products derived from this software may not be called "Radiance",
|
| 42 |
* nor may "Radiance" appear in their name, without prior written
|
| 43 |
* permission of Lawrence Berkeley National Laboratory.
|
| 44 |
*
|
| 45 |
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
|
| 46 |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
| 47 |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
| 48 |
* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
|
| 49 |
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
| 50 |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
| 51 |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
| 52 |
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
| 53 |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
| 54 |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
| 55 |
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
| 56 |
* SUCH DAMAGE.
|
| 57 |
* ====================================================================
|
| 58 |
*
|
| 59 |
* This software consists of voluntary contributions made by many
|
| 60 |
* individuals on behalf of Lawrence Berkeley National Laboratory. For more
|
| 61 |
* information on Lawrence Berkeley National Laboratory, please see
|
| 62 |
* <http://www.lbl.gov/>.
|
| 63 |
*/
|
| 64 |
|
| 65 |
#include "ray.h"
|
| 66 |
|
| 67 |
#include "source.h"
|
| 68 |
|
| 69 |
#include "ambient.h"
|
| 70 |
|
| 71 |
#include "random.h"
|
| 72 |
|
| 73 |
#include "paths.h"
|
| 74 |
|
| 75 |
#include <sys/types.h>
|
| 76 |
|
| 77 |
#include <signal.h>
|
| 78 |
/* persistent processes define */
|
| 79 |
#ifdef F_SETLKW
|
| 80 |
#define PERSIST 1 /* normal persist */
|
| 81 |
#define PARALLEL 2 /* parallel persist */
|
| 82 |
#define PCHILD 3 /* child of normal persist */
|
| 83 |
#endif
|
| 84 |
|
| 85 |
char *progname; /* argv[0] */
|
| 86 |
|
| 87 |
char *octname; /* octree name */
|
| 88 |
|
| 89 |
char *sigerr[NSIG]; /* signal error messages */
|
| 90 |
|
| 91 |
char *shm_boundary = NULL; /* boundary of shared memory */
|
| 92 |
|
| 93 |
char *errfile = NULL; /* error output file */
|
| 94 |
|
| 95 |
extern char *formstr(); /* string from format */
|
| 96 |
extern int inform; /* input format */
|
| 97 |
extern int outform; /* output format */
|
| 98 |
extern char *outvals; /* output values */
|
| 99 |
|
| 100 |
extern int hresolu; /* horizontal resolution */
|
| 101 |
extern int vresolu; /* vertical resolution */
|
| 102 |
|
| 103 |
extern int imm_irrad; /* compute immediate irradiance? */
|
| 104 |
extern int lim_dist; /* limit distance? */
|
| 105 |
|
| 106 |
extern char *tralist[]; /* list of modifers to trace (or no) */
|
| 107 |
extern int traincl; /* include == 1, exclude == 0 */
|
| 108 |
|
| 109 |
void onsig();
|
| 110 |
void sigdie();
|
| 111 |
void printdefaults();
|
| 112 |
|
| 113 |
|
| 114 |
int
|
| 115 |
main(argc, argv)
|
| 116 |
int argc;
|
| 117 |
char *argv[];
|
| 118 |
{
|
| 119 |
#define check(ol,al) if (argv[i][ol] || \
|
| 120 |
badarg(argc-i-1,argv+i+1,al)) \
|
| 121 |
goto badopt
|
| 122 |
#define bool(olen,var) switch (argv[i][olen]) { \
|
| 123 |
case '\0': var = !var; break; \
|
| 124 |
case 'y': case 'Y': case 't': case 'T': \
|
| 125 |
case '+': case '1': var = 1; break; \
|
| 126 |
case 'n': case 'N': case 'f': case 'F': \
|
| 127 |
case '-': case '0': var = 0; break; \
|
| 128 |
default: goto badopt; }
|
| 129 |
int loadflags = ~IO_FILES;
|
| 130 |
int persist = 0;
|
| 131 |
char **tralp;
|
| 132 |
int duped1;
|
| 133 |
int rval;
|
| 134 |
int i;
|
| 135 |
/* global program name */
|
| 136 |
progname = argv[0] = fixargv0(argv[0]);
|
| 137 |
/* option city */
|
| 138 |
for (i = 1; i < argc; i++) {
|
| 139 |
/* expand arguments */
|
| 140 |
while ((rval = expandarg(&argc, &argv, i)) > 0)
|
| 141 |
;
|
| 142 |
if (rval < 0) {
|
| 143 |
sprintf(errmsg, "cannot expand '%s'", argv[i]);
|
| 144 |
error(SYSTEM, errmsg);
|
| 145 |
}
|
| 146 |
if (argv[i] == NULL || argv[i][0] != '-')
|
| 147 |
break; /* break from options */
|
| 148 |
if (!strcmp(argv[i], "-version")) {
|
| 149 |
puts(VersionID);
|
| 150 |
quit(0);
|
| 151 |
}
|
| 152 |
if (!strcmp(argv[i], "-defaults") ||
|
| 153 |
!strcmp(argv[i], "-help")) {
|
| 154 |
printdefaults();
|
| 155 |
quit(0);
|
| 156 |
}
|
| 157 |
rval = getrenderopt(argc-i, argv+i);
|
| 158 |
if (rval >= 0) {
|
| 159 |
i += rval;
|
| 160 |
continue;
|
| 161 |
}
|
| 162 |
switch (argv[i][1]) {
|
| 163 |
case 'x': /* x resolution */
|
| 164 |
check(2,"i");
|
| 165 |
hresolu = atoi(argv[++i]);
|
| 166 |
break;
|
| 167 |
case 'y': /* y resolution */
|
| 168 |
check(2,"i");
|
| 169 |
vresolu = atoi(argv[++i]);
|
| 170 |
break;
|
| 171 |
case 'w': /* warnings */
|
| 172 |
rval = erract[WARNING].pf != NULL;
|
| 173 |
bool(2,rval);
|
| 174 |
if (rval) erract[WARNING].pf = wputs;
|
| 175 |
else erract[WARNING].pf = NULL;
|
| 176 |
break;
|
| 177 |
case 'e': /* error file */
|
| 178 |
check(2,"s");
|
| 179 |
errfile = argv[++i];
|
| 180 |
break;
|
| 181 |
case 'l': /* limit distance */
|
| 182 |
if (argv[i][2] != 'd')
|
| 183 |
goto badopt;
|
| 184 |
bool(3,lim_dist);
|
| 185 |
break;
|
| 186 |
case 'I': /* immed. irradiance */
|
| 187 |
bool(2,imm_irrad);
|
| 188 |
break;
|
| 189 |
case 'f': /* format i/o */
|
| 190 |
switch (argv[i][2]) {
|
| 191 |
case 'a': /* ascii */
|
| 192 |
case 'f': /* float */
|
| 193 |
case 'd': /* double */
|
| 194 |
inform = argv[i][2];
|
| 195 |
break;
|
| 196 |
default:
|
| 197 |
goto badopt;
|
| 198 |
}
|
| 199 |
switch (argv[i][3]) {
|
| 200 |
case '\0':
|
| 201 |
outform = inform;
|
| 202 |
break;
|
| 203 |
case 'a': /* ascii */
|
| 204 |
case 'f': /* float */
|
| 205 |
case 'd': /* double */
|
| 206 |
case 'c': /* color */
|
| 207 |
check(4,"");
|
| 208 |
outform = argv[i][3];
|
| 209 |
break;
|
| 210 |
default:
|
| 211 |
goto badopt;
|
| 212 |
}
|
| 213 |
break;
|
| 214 |
case 'o': /* output */
|
| 215 |
outvals = argv[i]+2;
|
| 216 |
break;
|
| 217 |
case 'h': /* header output */
|
| 218 |
rval = loadflags & IO_INFO;
|
| 219 |
bool(2,rval);
|
| 220 |
loadflags = rval ? loadflags | IO_INFO :
|
| 221 |
loadflags & ~IO_INFO;
|
| 222 |
break;
|
| 223 |
case 't': /* trace */
|
| 224 |
switch (argv[i][2]) {
|
| 225 |
case 'i': /* include */
|
| 226 |
case 'I':
|
| 227 |
check(3,"s");
|
| 228 |
if (traincl != 1) {
|
| 229 |
traincl = 1;
|
| 230 |
tralp = tralist;
|
| 231 |
}
|
| 232 |
if (argv[i][2] == 'I') { /* file */
|
| 233 |
rval = wordfile(tralp,
|
| 234 |
getpath(argv[++i],getlibpath(),R_OK));
|
| 235 |
if (rval < 0) {
|
| 236 |
sprintf(errmsg,
|
| 237 |
"cannot open trace include file \"%s\"",
|
| 238 |
argv[i]);
|
| 239 |
error(SYSTEM, errmsg);
|
| 240 |
}
|
| 241 |
tralp += rval;
|
| 242 |
} else {
|
| 243 |
*tralp++ = argv[++i];
|
| 244 |
*tralp = NULL;
|
| 245 |
}
|
| 246 |
break;
|
| 247 |
case 'e': /* exclude */
|
| 248 |
case 'E':
|
| 249 |
check(3,"s");
|
| 250 |
if (traincl != 0) {
|
| 251 |
traincl = 0;
|
| 252 |
tralp = tralist;
|
| 253 |
}
|
| 254 |
if (argv[i][2] == 'E') { /* file */
|
| 255 |
rval = wordfile(tralp,
|
| 256 |
getpath(argv[++i],getlibpath(),R_OK));
|
| 257 |
if (rval < 0) {
|
| 258 |
sprintf(errmsg,
|
| 259 |
"cannot open trace exclude file \"%s\"",
|
| 260 |
argv[i]);
|
| 261 |
error(SYSTEM, errmsg);
|
| 262 |
}
|
| 263 |
tralp += rval;
|
| 264 |
} else {
|
| 265 |
*tralp++ = argv[++i];
|
| 266 |
*tralp = NULL;
|
| 267 |
}
|
| 268 |
break;
|
| 269 |
default:
|
| 270 |
goto badopt;
|
| 271 |
}
|
| 272 |
break;
|
| 273 |
#ifdef PERSIST
|
| 274 |
case 'P': /* persist file */
|
| 275 |
if (argv[i][2] == 'P') {
|
| 276 |
check(3,"s");
|
| 277 |
persist = PARALLEL;
|
| 278 |
} else {
|
| 279 |
check(2,"s");
|
| 280 |
persist = PERSIST;
|
| 281 |
}
|
| 282 |
persistfile(argv[++i]);
|
| 283 |
break;
|
| 284 |
#endif
|
| 285 |
default:
|
| 286 |
goto badopt;
|
| 287 |
}
|
| 288 |
}
|
| 289 |
/* initialize object types */
|
| 290 |
initotypes();
|
| 291 |
/* initialize urand */
|
| 292 |
initurand(2048);
|
| 293 |
/* set up signal handling */
|
| 294 |
sigdie(SIGINT, "Interrupt");
|
| 295 |
sigdie(SIGHUP, "Hangup");
|
| 296 |
sigdie(SIGTERM, "Terminate");
|
| 297 |
sigdie(SIGPIPE, "Broken pipe");
|
| 298 |
sigdie(SIGALRM, "Alarm clock");
|
| 299 |
#ifdef SIGXCPU
|
| 300 |
sigdie(SIGXCPU, "CPU limit exceeded");
|
| 301 |
sigdie(SIGXFSZ, "File size exceeded");
|
| 302 |
#endif
|
| 303 |
/* open error file */
|
| 304 |
if (errfile != NULL) {
|
| 305 |
if (freopen(errfile, "a", stderr) == NULL)
|
| 306 |
quit(2);
|
| 307 |
fprintf(stderr, "**************\n*** PID %5d: ",
|
| 308 |
getpid());
|
| 309 |
printargs(argc, argv, stderr);
|
| 310 |
putc('\n', stderr);
|
| 311 |
fflush(stderr);
|
| 312 |
}
|
| 313 |
#ifdef NICE
|
| 314 |
nice(NICE); /* lower priority */
|
| 315 |
#endif
|
| 316 |
/* get octree */
|
| 317 |
if (i == argc)
|
| 318 |
octname = NULL;
|
| 319 |
else if (i == argc-1)
|
| 320 |
octname = argv[i];
|
| 321 |
else
|
| 322 |
goto badopt;
|
| 323 |
if (octname == NULL)
|
| 324 |
error(USER, "missing octree argument");
|
| 325 |
/* set up output */
|
| 326 |
#ifdef PERSIST
|
| 327 |
if (persist) {
|
| 328 |
duped1 = dup(fileno(stdout)); /* don't lose our output */
|
| 329 |
openheader();
|
| 330 |
}
|
| 331 |
#endif
|
| 332 |
#ifdef MSDOS
|
| 333 |
if (outform != 'a')
|
| 334 |
setmode(fileno(stdout), O_BINARY);
|
| 335 |
if (octname == NULL)
|
| 336 |
setmode(fileno(stdin), O_BINARY);
|
| 337 |
#endif
|
| 338 |
readoct(octname, loadflags, &thescene, NULL);
|
| 339 |
nsceneobjs = nobjects;
|
| 340 |
|
| 341 |
if (loadflags & IO_INFO) { /* print header */
|
| 342 |
printargs(i, argv, stdout);
|
| 343 |
printf("SOFTWARE= %s\n", VersionID);
|
| 344 |
fputnow(stdout);
|
| 345 |
fputformat(formstr(outform), stdout);
|
| 346 |
putchar('\n');
|
| 347 |
}
|
| 348 |
|
| 349 |
marksources(); /* find and mark sources */
|
| 350 |
|
| 351 |
setambient(); /* initialize ambient calculation */
|
| 352 |
|
| 353 |
#ifdef PERSIST
|
| 354 |
if (persist) {
|
| 355 |
fflush(stdout);
|
| 356 |
/* reconnect stdout */
|
| 357 |
dup2(duped1, fileno(stdout));
|
| 358 |
close(duped1);
|
| 359 |
if (persist == PARALLEL) { /* multiprocessing */
|
| 360 |
preload_objs(); /* preload scene */
|
| 361 |
shm_boundary = (char *)malloc(16);
|
| 362 |
strcpy(shm_boundary, "SHM_BOUNDARY");
|
| 363 |
while ((rval=fork()) == 0) { /* keep on forkin' */
|
| 364 |
pflock(1);
|
| 365 |
pfhold();
|
| 366 |
}
|
| 367 |
if (rval < 0)
|
| 368 |
error(SYSTEM, "cannot fork child for persist function");
|
| 369 |
pfdetach(); /* parent exits */
|
| 370 |
}
|
| 371 |
}
|
| 372 |
runagain:
|
| 373 |
if (persist)
|
| 374 |
dupheader(); /* send header to stdout */
|
| 375 |
#endif
|
| 376 |
/* trace rays */
|
| 377 |
rtrace(NULL);
|
| 378 |
/* flush ambient file */
|
| 379 |
ambsync();
|
| 380 |
#ifdef PERSIST
|
| 381 |
if (persist == PERSIST) { /* first run-through */
|
| 382 |
if ((rval=fork()) == 0) { /* child loops until killed */
|
| 383 |
pflock(1);
|
| 384 |
persist = PCHILD;
|
| 385 |
} else { /* original process exits */
|
| 386 |
if (rval < 0)
|
| 387 |
error(SYSTEM, "cannot fork child for persist function");
|
| 388 |
pfdetach(); /* parent exits */
|
| 389 |
}
|
| 390 |
}
|
| 391 |
if (persist == PCHILD) { /* wait for a signal then go again */
|
| 392 |
close(duped1); /* release output handle */
|
| 393 |
pfhold();
|
| 394 |
raynum = nrays = 0; /* reinitialize */
|
| 395 |
goto runagain;
|
| 396 |
}
|
| 397 |
#endif
|
| 398 |
quit(0);
|
| 399 |
|
| 400 |
badopt:
|
| 401 |
sprintf(errmsg, "command line error at '%s'", argv[i]);
|
| 402 |
error(USER, errmsg);
|
| 403 |
|
| 404 |
#undef check
|
| 405 |
#undef bool
|
| 406 |
}
|
| 407 |
|
| 408 |
|
| 409 |
void
|
| 410 |
wputs(s) /* warning output function */
|
| 411 |
char *s;
|
| 412 |
{
|
| 413 |
int lasterrno = errno;
|
| 414 |
eputs(s);
|
| 415 |
errno = lasterrno;
|
| 416 |
}
|
| 417 |
|
| 418 |
|
| 419 |
void
|
| 420 |
eputs(s) /* put string to stderr */
|
| 421 |
register char *s;
|
| 422 |
{
|
| 423 |
static int midline = 0;
|
| 424 |
|
| 425 |
if (!*s)
|
| 426 |
return;
|
| 427 |
if (!midline++) {
|
| 428 |
fputs(progname, stderr);
|
| 429 |
fputs(": ", stderr);
|
| 430 |
}
|
| 431 |
fputs(s, stderr);
|
| 432 |
if (s[strlen(s)-1] == '\n') {
|
| 433 |
fflush(stderr);
|
| 434 |
midline = 0;
|
| 435 |
}
|
| 436 |
}
|
| 437 |
|
| 438 |
|
| 439 |
void
|
| 440 |
onsig(signo) /* fatal signal */
|
| 441 |
int signo;
|
| 442 |
{
|
| 443 |
static int gotsig = 0;
|
| 444 |
|
| 445 |
if (gotsig++) /* two signals and we're gone! */
|
| 446 |
_exit(signo);
|
| 447 |
|
| 448 |
alarm(15); /* allow 15 seconds to clean up */
|
| 449 |
signal(SIGALRM, SIG_DFL); /* make certain we do die */
|
| 450 |
eputs("signal - ");
|
| 451 |
eputs(sigerr[signo]);
|
| 452 |
eputs("\n");
|
| 453 |
quit(3);
|
| 454 |
}
|
| 455 |
|
| 456 |
|
| 457 |
void
|
| 458 |
sigdie(signo, msg) /* set fatal signal */
|
| 459 |
int signo;
|
| 460 |
char *msg;
|
| 461 |
{
|
| 462 |
if (signal(signo, onsig) == SIG_IGN)
|
| 463 |
signal(signo, SIG_IGN);
|
| 464 |
sigerr[signo] = msg;
|
| 465 |
}
|
| 466 |
|
| 467 |
|
| 468 |
void
|
| 469 |
printdefaults() /* print default values to stdout */
|
| 470 |
{
|
| 471 |
register char *cp;
|
| 472 |
|
| 473 |
if (imm_irrad)
|
| 474 |
printf("-I+\t\t\t\t# immediate irradiance on\n");
|
| 475 |
printf("-x %-9d\t\t\t# x resolution\n", hresolu);
|
| 476 |
printf("-y %-9d\t\t\t# y resolution\n", vresolu);
|
| 477 |
printf(lim_dist ? "-ld+\t\t\t\t# limit distance on\n" :
|
| 478 |
"-ld-\t\t\t\t# limit distance off\n");
|
| 479 |
printf("-f%c%c\t\t\t\t# format input/output = %s/%s\n",
|
| 480 |
inform, outform, formstr(inform), formstr(outform));
|
| 481 |
printf("-o%s\t\t\t\t# output", outvals);
|
| 482 |
for (cp = outvals; *cp; cp++)
|
| 483 |
switch (*cp) {
|
| 484 |
case 't': printf(" trace"); break;
|
| 485 |
case 'o': printf(" origin"); break;
|
| 486 |
case 'd': printf(" direction"); break;
|
| 487 |
case 'v': printf(" value"); break;
|
| 488 |
case 'l': printf(" length"); break;
|
| 489 |
case 'L': printf(" first_length"); break;
|
| 490 |
case 'p': printf(" point"); break;
|
| 491 |
case 'n': printf(" normal"); break;
|
| 492 |
case 'N': printf(" unperturbed_normal"); break;
|
| 493 |
case 's': printf(" surface"); break;
|
| 494 |
case 'w': printf(" weight"); break;
|
| 495 |
case 'm': printf(" modifier"); break;
|
| 496 |
}
|
| 497 |
putchar('\n');
|
| 498 |
printf(erract[WARNING].pf != NULL ?
|
| 499 |
"-w+\t\t\t\t# warning messages on\n" :
|
| 500 |
"-w-\t\t\t\t# warning messages off\n");
|
| 501 |
print_rdefaults();
|
| 502 |
}
|
