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root/radiance/ray/src/rt/rmain.c
Revision: 2.28
Committed: Wed Aug 25 13:44:06 1993 UTC (31 years, 9 months ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 2.27: +6 -0 lines
Log Message: 
added -R option and L and V commands for rview

File Contents

# User Rev Content
1 greg 2.20 /* Copyright (c) 1993 Regents of the University of California */
2 greg 1.1
3     #ifndef lint
4     static char SCCSid[] = "$SunId$ LBL";
5     #endif
6    
7     /*
8     * rmain.c - main for ray tracing programs
9     *
10     * 3/24/87
11     */
12    
13     /* for flaky pre-processors */
14 greg 2.10 #ifndef RPICT
15     #define RPICT 0
16 greg 1.1 #endif
17 greg 2.10 #ifndef RTRACE
18     #define RTRACE 0
19 greg 1.1 #endif
20 greg 2.10 #ifndef RVIEW
21     #define RVIEW 0
22 greg 1.1 #endif
23    
24     #include "ray.h"
25    
26 greg 1.50 #include "resolu.h"
27    
28 greg 1.1 #include "octree.h"
29    
30     #include <signal.h>
31    
32     #include "view.h"
33    
34 greg 2.10 #include "paths.h"
35 greg 2.23 /* persistent processes define */
36 greg 2.27 #define NOPERS 0 /* do not persist (must be zero) */
37 greg 2.23 #ifdef F_SETLKW
38     #if RPICT|RTRACE
39 greg 2.27 #define PERSIST 1 /* normal persist */
40     #define PARALLEL 2 /* parallel persist */
41     #define PCHILD 3 /* child of normal persist */
42 greg 2.23 #endif
43     #endif
44 greg 1.1
45     char *progname; /* argv[0] */
46    
47 greg 1.19 char *octname; /* octree name */
48    
49 greg 1.1 char *libpath; /* library directory list */
50    
51     char *sigerr[NSIG]; /* signal error messages */
52    
53 greg 1.46 extern char VersionID[]; /* version ID string */
54    
55 greg 1.1 extern int stderr_v(); /* standard error output */
56     int (*errvec)() = stderr_v; /* error output vector */
57     int (*wrnvec)() = stderr_v; /* warning output vector */
58     int (*cmdvec)() = NULL; /* command error vector */
59    
60     int (*trace)() = NULL; /* trace call */
61 greg 1.36 int do_irrad = 0; /* compute irradiance? */
62 greg 1.1
63 greg 1.34 extern long time();
64     long tstart; /* start time */
65    
66 greg 1.24 extern int ambnotify(); /* new object notify functions */
67 greg 2.25 #if RTRACE
68     extern int tranotify();
69     int (*addobjnotify[])() = {ambnotify, tranotify, NULL};
70     extern char *tralist[]; /* trace include/exclude list */
71     extern int traincl; /* include == 1, exclude == 0 */
72     #else
73 greg 1.24 int (*addobjnotify[])() = {ambnotify, NULL};
74 greg 2.25 #endif
75 greg 1.24
76 greg 1.1 CUBE thescene; /* our scene */
77 greg 2.10 OBJECT nsceneobjs; /* number of objects in our scene */
78 greg 1.1
79 greg 2.24 extern unsigned long raynum, nrays; /* ray counts */
80 greg 2.22
81 greg 1.36 extern int imm_irrad; /* calculate immediate irradiance? */
82    
83 greg 1.1 extern int ralrm; /* seconds between reports */
84    
85     extern int greyscale; /* map colors to brightness? */
86     extern char *devname; /* output device name */
87    
88 greg 2.8 extern char *formstr(); /* string from format */
89 greg 1.1 extern int inform; /* input format */
90     extern int outform; /* output format */
91     extern char *outvals; /* output values */
92    
93     extern VIEW ourview; /* viewing parameters */
94    
95 greg 2.28 extern char rifname[]; /* rad input file name */
96    
97 greg 1.1 extern int hresolu; /* horizontal resolution */
98     extern int vresolu; /* vertical resolution */
99 greg 1.22 extern double pixaspect; /* pixel aspect ratio */
100 greg 1.1
101     extern int psample; /* pixel sample size */
102     extern double maxdiff; /* max. sample difference */
103 greg 1.11 extern double dstrpix; /* square pixel distribution */
104 greg 1.1
105     extern double dstrsrc; /* square source distribution */
106 greg 1.11 extern double shadthresh; /* shadow threshold */
107 greg 1.15 extern double shadcert; /* shadow testing certainty */
108 greg 1.39 extern int directrelay; /* number of source relays */
109 greg 1.40 extern int vspretest; /* virtual source pretest density */
110 greg 2.17 extern int directvis; /* light sources visible to eye? */
111 greg 1.47 extern double srcsizerat; /* maximum source size/dist. ratio */
112 greg 1.1
113 greg 2.4 extern double specthresh; /* specular sampling threshold */
114     extern double specjitter; /* specular sampling jitter */
115    
116 greg 1.1 extern int maxdepth; /* maximum recursion depth */
117     extern double minweight; /* minimum ray weight */
118    
119     extern COLOR ambval; /* ambient value */
120     extern double ambacc; /* ambient accuracy */
121     extern int ambres; /* ambient resolution */
122     extern int ambdiv; /* ambient divisions */
123     extern int ambssamp; /* ambient super-samples */
124     extern int ambounce; /* ambient bounces */
125     extern char *amblist[]; /* ambient include/exclude list */
126     extern int ambincl; /* include == 1, exclude == 0 */
127    
128    
129     main(argc, argv)
130     int argc;
131     char *argv[];
132     {
133 greg 2.10 #define check(ol,al) if (argv[i][ol] || \
134 greg 1.49 badarg(argc-i-1,argv+i+1,al)) \
135     goto badopt
136 greg 2.10 #define bool(olen,var) switch (argv[i][olen]) { \
137 greg 1.43 case '\0': var = !var; break; \
138     case 'y': case 'Y': case 't': case 'T': \
139     case '+': case '1': var = 1; break; \
140     case 'n': case 'N': case 'f': case 'F': \
141     case '-': case '0': var = 0; break; \
142     default: goto badopt; }
143 greg 1.1 char *err;
144     char *recover = NULL;
145 greg 2.7 char *outfile = NULL;
146 greg 1.20 char *zfile = NULL;
147 greg 1.1 char *errfile = NULL;
148     char *ambfile = NULL;
149     int loadflags = ~IO_FILES;
150 greg 2.7 int seqstart = 0;
151 greg 2.27 int persist = NOPERS;
152 greg 2.25 char **amblp;
153     char **tralp;
154 greg 2.18 int duped1;
155 greg 2.7 int rval;
156 greg 1.1 int i;
157 greg 1.34 /* record start time */
158     tstart = time((long *)0);
159 greg 1.1 /* global program name */
160 greg 2.11 progname = argv[0] = fixargv0(argv[0]);
161 greg 1.1 /* get library path */
162     if ((libpath = getenv(ULIBVAR)) == NULL)
163     libpath = DEFPATH;
164 greg 1.31 /* initialize object types */
165     initotypes();
166 greg 1.37 /* initialize urand */
167 greg 1.41 initurand(2048);
168 greg 1.10 /* option city */
169 greg 2.12 for (i = 1; i < argc; i++) {
170 greg 2.13 /* expand arguments */
171     while (rval = expandarg(&argc, &argv, i))
172     if (rval < 0) {
173     sprintf(errmsg, "cannot expand '%s'", argv[i]);
174     error(SYSTEM, errmsg);
175     }
176 greg 2.15 if (argv[i] == NULL || argv[i][0] != '-')
177 greg 2.12 break; /* break from options */
178 greg 1.46 if (!strcmp(argv[i], "-version")) {
179     puts(VersionID);
180     quit(0);
181     }
182 greg 1.18 if (!strcmp(argv[i], "-defaults") ||
183     !strcmp(argv[i], "-help")) {
184 greg 1.1 printdefaults();
185     quit(0);
186     }
187     #if RVIEW
188     if (!strcmp(argv[i], "-devices")) {
189     printdevices();
190     quit(0);
191     }
192     #endif
193 greg 1.21 #if RPICT|RVIEW
194     rval = getviewopt(&ourview, argc-i, argv+i);
195     if (rval >= 0) {
196     i += rval;
197     continue;
198     }
199     #endif
200 greg 1.1 switch (argv[i][1]) {
201     #if RPICT|RVIEW
202 greg 1.21 case 'v': /* view file */
203     if (argv[i][2] != 'f')
204 greg 1.10 goto badopt;
205 greg 1.49 check(3,"s");
206 greg 1.50 rval = viewfile(argv[++i], &ourview, NULL);
207 greg 1.21 if (rval < 0) {
208     sprintf(errmsg,
209     "cannot open view file \"%s\"",
210     argv[i]);
211     error(SYSTEM, errmsg);
212     } else if (rval == 0) {
213     sprintf(errmsg,
214     "bad view file \"%s\"",
215     argv[i]);
216     error(USER, errmsg);
217 greg 2.7 }
218 greg 1.1 break;
219     #endif
220 greg 1.11 case 'd': /* direct */
221 greg 1.1 switch (argv[i][2]) {
222 greg 1.13 case 't': /* threshold */
223 greg 1.49 check(3,"f");
224 greg 1.11 shadthresh = atof(argv[++i]);
225 greg 1.1 break;
226 greg 1.15 case 'c': /* certainty */
227 greg 1.49 check(3,"f");
228 greg 1.15 shadcert = atof(argv[++i]);
229     break;
230 greg 1.11 case 'j': /* jitter */
231 greg 1.49 check(3,"f");
232 greg 1.1 dstrsrc = atof(argv[++i]);
233     break;
234 greg 1.47 case 'r': /* relays */
235 greg 1.49 check(3,"i");
236 greg 1.39 directrelay = atoi(argv[++i]);
237     break;
238 greg 1.47 case 'p': /* pretest */
239 greg 1.49 check(3,"i");
240 greg 1.40 vspretest = atoi(argv[++i]);
241 greg 1.42 break;
242 greg 2.17 case 'v': /* visibility */
243     bool(3,directvis);
244 greg 1.40 break;
245 greg 1.47 case 's': /* size */
246 greg 1.49 check(3,"f");
247 greg 1.47 srcsizerat = atof(argv[++i]);
248     break;
249 greg 1.1 default:
250 greg 1.10 goto badopt;
251 greg 1.1 }
252     break;
253 greg 2.4 case 's': /* specular */
254     switch (argv[i][2]) {
255     case 't': /* threshold */
256     check(3,"f");
257     specthresh = atof(argv[++i]);
258     break;
259     case 'j': /* jitter */
260     check(3,"f");
261     specjitter = atof(argv[++i]);
262     break;
263     default:
264     goto badopt;
265     }
266     break;
267 greg 1.1 #if RPICT|RVIEW
268 greg 2.4 case 'p': /* pixel */
269 greg 1.1 switch (argv[i][2]) {
270 greg 2.4 case 's': /* sample */
271 greg 1.49 check(3,"i");
272 greg 1.1 psample = atoi(argv[++i]);
273     break;
274 greg 1.13 case 't': /* threshold */
275 greg 1.49 check(3,"f");
276 greg 1.1 maxdiff = atof(argv[++i]);
277     break;
278 greg 1.11 #if RPICT
279     case 'j': /* jitter */
280 greg 1.49 check(3,"f");
281 greg 1.11 dstrpix = atof(argv[++i]);
282     break;
283 greg 2.4 case 'a': /* aspect */
284     check(3,"f");
285     pixaspect = atof(argv[++i]);
286     break;
287 greg 1.11 #endif
288 greg 1.1 default:
289 greg 1.10 goto badopt;
290 greg 1.1 }
291     break;
292     #endif
293 greg 1.22 #if RPICT|RTRACE
294 greg 1.1 case 'x': /* x resolution */
295 greg 1.49 check(2,"i");
296 greg 1.1 hresolu = atoi(argv[++i]);
297     break;
298     case 'y': /* y resolution */
299 greg 1.49 check(2,"i");
300 greg 1.1 vresolu = atoi(argv[++i]);
301     break;
302 greg 1.22 #endif
303 greg 1.1 case 'w': /* warnings */
304 greg 1.43 rval = wrnvec != NULL;
305     bool(2,rval);
306 greg 2.6 if (rval) wrnvec = stderr_v;
307     else wrnvec = NULL;
308 greg 1.1 break;
309     case 'e': /* error file */
310 greg 1.49 check(2,"s");
311 greg 1.1 errfile = argv[++i];
312     break;
313     case 'l': /* limit */
314     switch (argv[i][2]) {
315     case 'r': /* recursion */
316 greg 1.49 check(3,"i");
317 greg 1.1 maxdepth = atoi(argv[++i]);
318     break;
319     case 'w': /* weight */
320 greg 1.49 check(3,"f");
321 greg 1.1 minweight = atof(argv[++i]);
322     break;
323     default:
324 greg 1.10 goto badopt;
325 greg 1.1 }
326     break;
327 greg 1.36 case 'i': /* irradiance */
328 greg 1.43 bool(2,do_irrad);
329 greg 1.36 break;
330 greg 1.1 #if RPICT
331 greg 2.7 case 'S': /* slave index */
332     check(2,"i");
333     seqstart = atoi(argv[++i]);
334     break;
335     case 'o': /* output file */
336     check(2,"s");
337     outfile = argv[++i];
338     break;
339 greg 1.20 case 'z': /* z file */
340 greg 1.49 check(2,"s");
341 greg 1.20 zfile = argv[++i];
342     break;
343 greg 1.1 case 'r': /* recover file */
344 greg 2.16 if (argv[i][2] == 'o') { /* +output */
345     check(3,"s");
346     outfile = argv[i+1];
347     } else
348     check(2,"s");
349 greg 1.1 recover = argv[++i];
350     break;
351     case 't': /* timer */
352 greg 1.49 check(2,"i");
353 greg 1.1 ralrm = atoi(argv[++i]);
354     break;
355     #endif
356     case 'a': /* ambient */
357     switch (argv[i][2]) {
358     case 'v': /* value */
359 greg 1.49 check(3,"fff");
360 greg 1.1 setcolor(ambval, atof(argv[i+1]),
361     atof(argv[i+2]),
362     atof(argv[i+3]));
363     i += 3;
364     break;
365     case 'a': /* accuracy */
366 greg 1.49 check(3,"f");
367 greg 1.1 ambacc = atof(argv[++i]);
368     break;
369     case 'r': /* resolution */
370 greg 1.49 check(3,"i");
371 greg 1.1 ambres = atoi(argv[++i]);
372     break;
373     case 'd': /* divisions */
374 greg 1.49 check(3,"i");
375 greg 1.1 ambdiv = atoi(argv[++i]);
376     break;
377     case 's': /* super-samp */
378 greg 1.49 check(3,"i");
379 greg 1.1 ambssamp = atoi(argv[++i]);
380     break;
381     case 'b': /* bounces */
382 greg 1.49 check(3,"i");
383 greg 1.1 ambounce = atoi(argv[++i]);
384     break;
385     case 'i': /* include */
386 greg 2.5 case 'I':
387 greg 1.49 check(3,"s");
388 greg 1.1 if (ambincl != 1) {
389     ambincl = 1;
390     amblp = amblist;
391     }
392 greg 2.5 if (argv[i][2] == 'I') { /* file */
393 greg 2.13 rval = wordfile(amblp,
394     getpath(argv[++i],libpath,R_OK));
395 greg 2.5 if (rval < 0) {
396     sprintf(errmsg,
397     "cannot open ambient include file \"%s\"",
398     argv[i]);
399     error(SYSTEM, errmsg);
400     }
401     amblp += rval;
402 greg 2.25 } else {
403 greg 2.5 *amblp++ = argv[++i];
404 greg 2.25 *amblp = NULL;
405     }
406 greg 1.1 break;
407     case 'e': /* exclude */
408 greg 2.5 case 'E':
409 greg 1.49 check(3,"s");
410 greg 1.1 if (ambincl != 0) {
411     ambincl = 0;
412     amblp = amblist;
413     }
414 greg 2.5 if (argv[i][2] == 'E') { /* file */
415 greg 2.13 rval = wordfile(amblp,
416     getpath(argv[++i],libpath,R_OK));
417 greg 2.5 if (rval < 0) {
418     sprintf(errmsg,
419     "cannot open ambient exclude file \"%s\"",
420     argv[i]);
421     error(SYSTEM, errmsg);
422     }
423     amblp += rval;
424 greg 2.25 } else {
425 greg 2.5 *amblp++ = argv[++i];
426 greg 2.25 *amblp = NULL;
427     }
428 greg 1.1 break;
429     case 'f': /* file */
430 greg 1.49 check(3,"s");
431 greg 1.1 ambfile= argv[++i];
432     break;
433     default:
434 greg 1.10 goto badopt;
435 greg 1.1 }
436     break;
437     #if RTRACE
438 greg 1.36 case 'I': /* immed. irradiance */
439 greg 1.43 bool(2,imm_irrad);
440 greg 1.36 break;
441 greg 1.1 case 'f': /* format i/o */
442     switch (argv[i][2]) {
443     case 'a': /* ascii */
444     case 'f': /* float */
445     case 'd': /* double */
446     inform = argv[i][2];
447     break;
448     default:
449 greg 1.10 goto badopt;
450 greg 1.1 }
451     switch (argv[i][3]) {
452     case '\0':
453     outform = inform;
454     break;
455     case 'a': /* ascii */
456     case 'f': /* float */
457     case 'd': /* double */
458 greg 2.7 case 'c': /* color */
459 greg 1.49 check(4,"");
460 greg 1.1 outform = argv[i][3];
461     break;
462     default:
463 greg 1.10 goto badopt;
464 greg 1.1 }
465     break;
466     case 'o': /* output */
467     outvals = argv[i]+2;
468     break;
469 greg 1.44 case 'h': /* header output */
470     rval = loadflags & IO_INFO;
471     bool(2,rval);
472     loadflags = rval ? loadflags | IO_INFO :
473     loadflags & ~IO_INFO;
474 greg 1.1 break;
475 greg 2.25 case 't': /* trace */
476     switch (argv[i][2]) {
477     case 'i': /* include */
478     case 'I':
479     check(3,"s");
480     if (traincl != 1) {
481     traincl = 1;
482     tralp = tralist;
483     }
484     if (argv[i][2] == 'I') { /* file */
485     rval = wordfile(tralp,
486     getpath(argv[++i],libpath,R_OK));
487     if (rval < 0) {
488     sprintf(errmsg,
489     "cannot open trace include file \"%s\"",
490     argv[i]);
491     error(SYSTEM, errmsg);
492     }
493     tralp += rval;
494     } else {
495     *tralp++ = argv[++i];
496     *tralp = NULL;
497     }
498     break;
499     case 'e': /* exclude */
500     case 'E':
501     check(3,"s");
502     if (traincl != 0) {
503     traincl = 0;
504     tralp = tralist;
505     }
506     if (argv[i][2] == 'E') { /* file */
507     rval = wordfile(tralp,
508     getpath(argv[++i],libpath,R_OK));
509     if (rval < 0) {
510     sprintf(errmsg,
511     "cannot open trace exclude file \"%s\"",
512     argv[i]);
513     error(SYSTEM, errmsg);
514     }
515     tralp += rval;
516     } else {
517     *tralp++ = argv[++i];
518     *tralp = NULL;
519     }
520     break;
521     default:
522     goto badopt;
523     }
524     break;
525 greg 1.1 #endif
526     #if RVIEW
527     case 'b': /* black and white */
528 greg 1.49 bool(2,greyscale);
529 greg 1.1 break;
530     case 'o': /* output device */
531 greg 1.49 check(2,"s");
532 greg 1.1 devname = argv[++i];
533 greg 2.28 break;
534     case 'R': /* render input file */
535     check(2,"s");
536     strcpy(rifname, argv[++i]);
537 greg 1.1 break;
538     #endif
539 greg 2.18 #ifdef PERSIST
540     case 'P': /* persist file */
541     if (argv[i][2] == 'P') {
542     check(3,"s");
543 greg 2.27 persist = PARALLEL;
544 greg 2.18 } else {
545     check(2,"s");
546 greg 2.27 persist = PERSIST;
547 greg 2.18 }
548     persistfile(argv[++i]);
549     break;
550     #endif
551 greg 1.1 default:
552 greg 1.19 goto badopt;
553 greg 1.1 }
554     }
555     #if RPICT|RVIEW
556     err = setview(&ourview); /* set viewing parameters */
557     if (err != NULL)
558     error(USER, err);
559     #endif
560     /* set up signal handling */
561     sigdie(SIGINT, "Interrupt");
562     sigdie(SIGHUP, "Hangup");
563     sigdie(SIGTERM, "Terminate");
564     sigdie(SIGPIPE, "Broken pipe");
565 greg 1.45 sigdie(SIGALRM, "Alarm clock");
566 greg 2.10 #ifdef SIGXCPU
567 greg 1.1 sigdie(SIGXCPU, "CPU limit exceeded");
568     sigdie(SIGXFSZ, "File size exceeded");
569     #endif
570     /* open error file */
571     if (errfile != NULL) {
572     if (freopen(errfile, "a", stderr) == NULL)
573 greg 1.14 quit(2);
574 greg 1.1 fprintf(stderr, "**************\n*** PID %5d: ",
575     getpid());
576     printargs(argc, argv, stderr);
577 greg 2.12 putc('\n', stderr);
578 greg 1.1 fflush(stderr);
579     }
580 greg 2.10 #ifdef NICE
581 greg 1.1 nice(NICE); /* lower priority */
582     #endif
583 greg 1.19 /* get octree */
584 greg 1.1 #if RVIEW
585     loadflags &= ~IO_INFO;
586     #endif
587     if (i == argc)
588 greg 1.19 octname = NULL;
589     else if (i == argc-1)
590     octname = argv[i];
591 greg 1.1 else
592 greg 1.19 goto badopt;
593 greg 2.7 if (
594     #if RPICT
595     seqstart > 0 &&
596     #endif
597     octname == NULL)
598 greg 1.19 error(USER, "missing octree argument");
599 greg 2.26 /* set up output */
600 greg 2.18 #ifdef PERSIST
601     if (persist) {
602 greg 2.7 #if RPICT
603 greg 2.26 if (recover != NULL)
604     error(USER, "persist option used with recover file");
605 greg 2.18 if (seqstart <= 0)
606     error(USER, "persist option only for sequences");
607 greg 2.26 if (outfile == NULL)
608 greg 2.18 #endif
609     duped1 = dup(fileno(stdout)); /* don't lose our output */
610     openheader();
611     }
612     #if RPICT
613 greg 2.27 else
614     #endif
615     #endif
616     #if RPICT
617 greg 2.7 if (outfile != NULL)
618     openheader();
619 greg 1.1 #endif
620 greg 2.10 #ifdef MSDOS
621     #if RTRACE
622     if (outform != 'a')
623     #endif
624     setmode(fileno(stdout), O_BINARY);
625     if (octname == NULL)
626     setmode(fileno(stdin), O_BINARY);
627     #endif
628 greg 1.19 readoct(octname, loadflags, &thescene, NULL);
629 greg 2.9 nsceneobjs = nobjects;
630 greg 1.1
631     if (loadflags & IO_INFO) { /* print header */
632     printargs(i, argv, stdout);
633 greg 1.46 printf("SOFTWARE= %s\n", VersionID);
634 greg 2.8 #if RTRACE
635     fputformat(formstr(outform), stdout);
636     putchar('\n');
637     #endif
638 greg 1.1 }
639    
640     marksources(); /* find and mark sources */
641    
642 greg 1.24 setambient(ambfile); /* initialize ambient calculation */
643 greg 1.1
644 greg 2.18 #ifdef PERSIST
645     if (persist) {
646 greg 2.26 fflush(stdout);
647     if (outfile == NULL) { /* reconnect stdout */
648     dup2(duped1, fileno(stdout));
649     close(duped1);
650     }
651 greg 2.27 if (persist == PARALLEL) { /* multiprocessing */
652 greg 2.18 preload_objs(); /* preload scene */
653     while ((rval=fork()) == 0) { /* keep on forkin' */
654     pflock(1);
655     pfhold();
656 greg 2.22 tstart = time(0);
657 greg 2.18 }
658     if (rval < 0)
659     error(SYSTEM, "cannot fork child for persist function");
660 greg 2.27 pfdetach(); /* parent exits */
661 greg 2.18 }
662     }
663     runagain:
664 greg 2.27 if (persist)
665     if (outfile == NULL) /* if out to stdout */
666     dupheader(); /* send header */
667     else /* if out to file */
668     duped1 = dup(fileno(stdout)); /* hang onto pipe */
669 greg 2.18 #endif
670 greg 1.1 #if RPICT
671 greg 2.7 rpict(seqstart, outfile, zfile, recover);
672 greg 1.1 #endif
673     #if RTRACE
674 greg 2.8 rtrace(NULL);
675 greg 1.1 #endif
676     #if RVIEW
677 greg 2.8 rview();
678 greg 2.18 #endif
679 greg 2.21 ambsync(); /* flush ambient file */
680 greg 2.18 #ifdef PERSIST
681 greg 2.27 if (persist == PERSIST) { /* first run-through */
682 greg 2.20 if ((rval=fork()) == 0) { /* child loops until killed */
683     pflock(1);
684 greg 2.27 persist = PCHILD;
685 greg 2.20 } else { /* original process exits */
686     if (rval < 0)
687     error(SYSTEM, "cannot fork child for persist function");
688 greg 2.27 pfdetach(); /* parent exits */
689 greg 2.20 }
690     }
691 greg 2.27 if (persist == PCHILD) { /* wait for a signal then go again */
692     if (outfile != NULL)
693     close(duped1); /* release output handle */
694 greg 2.20 pfhold();
695 greg 2.22 tstart = time(0); /* reinitialize counters */
696     raynum = nrays = 0;
697 greg 2.18 goto runagain;
698     }
699 greg 1.1 #endif
700     quit(0);
701 greg 1.19
702     badopt:
703     sprintf(errmsg, "command line error at '%s'", argv[i]);
704     error(USER, errmsg);
705    
706 greg 2.10 #undef check
707     #undef bool
708 greg 1.1 }
709    
710    
711     eputs(s) /* error output */
712     char *s;
713     {
714     if (errvec != NULL)
715     (*errvec)(s);
716     }
717    
718    
719     wputs(s) /* warning output */
720     char *s;
721     {
722 greg 2.3 int lasterrno = errno; /* save errno */
723    
724 greg 1.1 if (wrnvec != NULL)
725     (*wrnvec)(s);
726 greg 2.3
727     errno = lasterrno;
728 greg 1.1 }
729    
730    
731     cputs(s) /* command error output */
732     char *s;
733     {
734     if (cmdvec != NULL)
735     (*cmdvec)(s);
736     }
737    
738    
739     stderr_v(s) /* put string to stderr */
740     register char *s;
741     {
742 greg 1.26 static int midline = 0;
743 greg 1.1
744 greg 1.27 if (!*s)
745     return;
746 greg 1.26 if (!midline++) {
747 greg 1.1 fputs(progname, stderr);
748     fputs(": ", stderr);
749     }
750     fputs(s, stderr);
751 greg 1.27 if (s[strlen(s)-1] == '\n') {
752 greg 1.1 fflush(stderr);
753 greg 1.26 midline = 0;
754 greg 1.1 }
755     }
756    
757    
758     onsig(signo) /* fatal signal */
759     int signo;
760     {
761 greg 1.8 static int gotsig = 0;
762    
763     if (gotsig++) /* two signals and we're gone! */
764 greg 1.9 _exit(signo);
765 greg 1.8
766 greg 1.48 alarm(15); /* allow 15 seconds to clean up */
767     signal(SIGALRM, SIG_DFL); /* make certain we do die */
768 greg 1.1 eputs("signal - ");
769     eputs(sigerr[signo]);
770     eputs("\n");
771 greg 1.14 quit(3);
772 greg 1.1 }
773    
774    
775     sigdie(signo, msg) /* set fatal signal */
776     int signo;
777     char *msg;
778     {
779     if (signal(signo, onsig) == SIG_IGN)
780     signal(signo, SIG_IGN);
781     sigerr[signo] = msg;
782     }
783    
784    
785     printdefaults() /* print default values to stdout */
786     {
787     register char *cp;
788    
789 greg 1.43 #if RTRACE
790     if (imm_irrad)
791     printf("-I+\t\t\t\t# immediate irradiance on\n");
792     else
793     #endif
794     printf(do_irrad ? "-i+\t\t\t\t# irradiance calculation on\n" :
795     "-i-\t\t\t\t# irradiance calculation off\n");
796 greg 1.49 #if RVIEW
797     printf(greyscale ? "-b+\t\t\t\t# greyscale on\n" :
798     "-b-\t\t\t\t# greyscale off\n");
799     #endif
800 greg 1.1 #if RPICT|RVIEW
801 greg 1.7 printf("-vt%c\t\t\t\t# view type %s\n", ourview.type,
802 greg 1.1 ourview.type==VT_PER ? "perspective" :
803     ourview.type==VT_PAR ? "parallel" :
804 greg 1.28 ourview.type==VT_HEM ? "hemispherical" :
805     ourview.type==VT_ANG ? "angular" :
806 greg 1.1 "unknown");
807     printf("-vp %f %f %f\t# view point\n",
808     ourview.vp[0], ourview.vp[1], ourview.vp[2]);
809 greg 2.11 printf("-vd %f %f %f\t# view direction\n",
810 greg 1.1 ourview.vdir[0], ourview.vdir[1], ourview.vdir[2]);
811 greg 2.11 printf("-vu %f %f %f\t# view up\n",
812 greg 1.1 ourview.vup[0], ourview.vup[1], ourview.vup[2]);
813     printf("-vh %f\t\t\t# view horizontal size\n", ourview.horiz);
814     printf("-vv %f\t\t\t# view vertical size\n", ourview.vert);
815 greg 1.22 printf("-vs %f\t\t\t# view shift\n", ourview.hoff);
816     printf("-vl %f\t\t\t# view lift\n", ourview.voff);
817 greg 1.1 #endif
818 greg 1.22 #if RPICT|RTRACE
819 greg 1.1 printf("-x %-9d\t\t\t# x resolution\n", hresolu);
820     printf("-y %-9d\t\t\t# y resolution\n", vresolu);
821 greg 1.22 #endif
822     #if RPICT
823 greg 2.4 printf("-pa %f\t\t\t# pixel aspect ratio\n", pixaspect);
824     printf("-pj %f\t\t\t# pixel jitter\n", dstrpix);
825 greg 1.22 #endif
826 greg 1.1 #if RPICT|RVIEW
827 greg 2.4 printf("-ps %-9d\t\t\t# pixel sample\n", psample);
828     printf("-pt %f\t\t\t# pixel threshold\n", maxdiff);
829 greg 1.22 #endif
830 greg 1.29 printf("-dt %f\t\t\t# direct threshold\n", shadthresh);
831     printf("-dc %f\t\t\t# direct certainty\n", shadcert);
832     printf("-dj %f\t\t\t# direct jitter\n", dstrsrc);
833 greg 1.47 printf("-ds %f\t\t\t# direct sampling\n", srcsizerat);
834 greg 1.39 printf("-dr %-9d\t\t\t# direct relays\n", directrelay);
835 greg 1.40 printf("-dp %-9d\t\t\t# direct pretest density\n", vspretest);
836 greg 2.17 printf(directvis ? "-dv+\t\t\t\t# direct visibility on\n" :
837     "-dv-\t\t\t\t# direct visibility off\n");
838 greg 2.4 printf("-sj %f\t\t\t# specular jitter\n", specjitter);
839     printf("-st %f\t\t\t# specular threshold\n", specthresh);
840 greg 1.1 printf("-av %f %f %f\t# ambient value\n", colval(ambval,RED),
841     colval(ambval,GRN), colval(ambval, BLU));
842     printf("-ab %-9d\t\t\t# ambient bounces\n", ambounce);
843     printf("-aa %f\t\t\t# ambient accuracy\n", ambacc);
844     printf("-ar %-9d\t\t\t# ambient resolution\n", ambres);
845     printf("-ad %-9d\t\t\t# ambient divisions\n", ambdiv);
846     printf("-as %-9d\t\t\t# ambient super-samples\n", ambssamp);
847     printf("-lr %-9d\t\t\t# limit reflection\n", maxdepth);
848     printf("-lw %f\t\t\t# limit weight\n", minweight);
849     #if RPICT
850     printf("-t %-9d\t\t\t# time between reports\n", ralrm);
851     #endif
852     #if RVIEW
853     printf("-o %s\t\t\t\t# output device\n", devname);
854     #endif
855     #if RTRACE
856     printf("-f%c%c\t\t\t\t# format input/output = %s/%s\n",
857 greg 2.7 inform, outform, formstr(inform), formstr(outform));
858 greg 1.1 printf("-o%s\t\t\t\t# output", outvals);
859     for (cp = outvals; *cp; cp++)
860     switch (*cp) {
861     case 't': printf(" trace"); break;
862     case 'o': printf(" origin"); break;
863     case 'd': printf(" direction"); break;
864     case 'v': printf(" value"); break;
865     case 'l': printf(" length"); break;
866 greg 2.14 case 'L': printf(" first_length"); break;
867 greg 1.1 case 'p': printf(" point"); break;
868     case 'n': printf(" normal"); break;
869 greg 2.14 case 'N': printf(" unperturbed_normal"); break;
870 greg 1.1 case 's': printf(" surface"); break;
871     case 'w': printf(" weight"); break;
872     case 'm': printf(" modifier"); break;
873     }
874 greg 2.7 putchar('\n');
875 greg 1.1 #endif
876 greg 1.43 printf(wrnvec != NULL ? "-w+\t\t\t\t# warning messages on\n" :
877     "-w-\t\t\t\t# warning messages off\n");
878 greg 1.1 }