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root/radiance/ray/src/rt/rtmain.c
Revision: 2.18
Committed: Sat Dec 12 19:01:00 2009 UTC (14 years, 4 months ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 2.17: +54 -17 lines
Log Message:
Added -n option to rtrace and moved quit() funciton out of raypcalls

File Contents

# User Rev Content
1 greg 2.1 #ifndef lint
2 greg 2.18 static const char RCSid[] = "$Id: rtmain.c,v 2.17 2009/06/22 20:52:56 greg Exp $";
3 greg 2.1 #endif
4     /*
5     * rtmain.c - main for rtrace per-ray calculation program
6     */
7    
8 greg 2.2 #include "copyright.h"
9 greg 2.1
10 schorsch 2.4 #include <signal.h>
11    
12     #include "platform.h"
13 schorsch 2.7 #include "rtprocess.h" /* getpid() */
14 schorsch 2.9 #include "resolu.h"
15 greg 2.1 #include "ray.h"
16     #include "source.h"
17     #include "ambient.h"
18     #include "random.h"
19     #include "paths.h"
20    
21 greg 2.18 extern char *progname; /* global argv[0] */
22    
23     extern char *shm_boundary; /* boundary of shared memory */
24    
25 greg 2.1 /* persistent processes define */
26     #ifdef F_SETLKW
27     #define PERSIST 1 /* normal persist */
28     #define PARALLEL 2 /* parallel persist */
29     #define PCHILD 3 /* child of normal persist */
30     #endif
31    
32     char *sigerr[NSIG]; /* signal error messages */
33     char *errfile = NULL; /* error output file */
34    
35 greg 2.18 int nproc = 1; /* number of processes */
36    
37 greg 2.1 extern char *formstr(); /* string from format */
38 greg 2.18 int inform = 'a'; /* input format */
39     int outform = 'a'; /* output format */
40     char *outvals = "v"; /* output specification */
41 greg 2.1
42 greg 2.18 int hresolu = 0; /* horizontal (scan) size */
43     int vresolu = 0; /* vertical resolution */
44 greg 2.1
45 greg 2.18 int imm_irrad = 0; /* compute immediate irradiance? */
46     int lim_dist = 0; /* limit distance? */
47    
48     #ifndef MAXMODLIST
49     #define MAXMODLIST 1024 /* maximum modifiers we'll track */
50     #endif
51 greg 2.1
52 greg 2.18 extern void (*addobjnotify[])(); /* object notification calls */
53     extern void tranotify(OBJECT obj);
54    
55     char *tralist[MAXMODLIST]; /* list of modifers to trace (or no) */
56     int traincl = -1; /* include == 1, exclude == 0 */
57 greg 2.1
58 greg 2.10 static int loadflags = ~IO_FILES; /* what to load from octree */
59    
60 schorsch 2.9 static void onsig(int signo);
61     static void sigdie(int signo, char *msg);
62     static void printdefaults(void);
63 greg 2.1
64    
65     int
66 schorsch 2.9 main(int argc, char *argv[])
67 greg 2.1 {
68     #define check(ol,al) if (argv[i][ol] || \
69     badarg(argc-i-1,argv+i+1,al)) \
70     goto badopt
71     #define bool(olen,var) switch (argv[i][olen]) { \
72     case '\0': var = !var; break; \
73     case 'y': case 'Y': case 't': case 'T': \
74     case '+': case '1': var = 1; break; \
75     case 'n': case 'N': case 'f': case 'F': \
76     case '-': case '0': var = 0; break; \
77     default: goto badopt; }
78     int persist = 0;
79 greg 2.18 char *octnm = NULL;
80 greg 2.1 char **tralp;
81     int duped1;
82     int rval;
83     int i;
84     /* global program name */
85     progname = argv[0] = fixargv0(argv[0]);
86 greg 2.18 /* add trace notify function */
87     for (i = 0; addobjnotify[i] != NULL; i++)
88     ;
89     addobjnotify[i] = tranotify;
90     /* set our defaults */
91     maxdepth = -10;
92     minweight = 2e-3;
93 greg 2.1 /* option city */
94     for (i = 1; i < argc; i++) {
95     /* expand arguments */
96     while ((rval = expandarg(&argc, &argv, i)) > 0)
97     ;
98     if (rval < 0) {
99     sprintf(errmsg, "cannot expand '%s'", argv[i]);
100     error(SYSTEM, errmsg);
101     }
102     if (argv[i] == NULL || argv[i][0] != '-')
103     break; /* break from options */
104     if (!strcmp(argv[i], "-version")) {
105     puts(VersionID);
106     quit(0);
107     }
108     if (!strcmp(argv[i], "-defaults") ||
109     !strcmp(argv[i], "-help")) {
110     printdefaults();
111     quit(0);
112     }
113     rval = getrenderopt(argc-i, argv+i);
114     if (rval >= 0) {
115     i += rval;
116     continue;
117     }
118     switch (argv[i][1]) {
119 greg 2.18 case 'n': /* number of cores */
120     check(2,"i");
121     nproc = atoi(argv[++i]);
122     if (nproc <= 0)
123     error(USER, "bad number of processes");
124     break;
125 greg 2.1 case 'x': /* x resolution */
126     check(2,"i");
127     hresolu = atoi(argv[++i]);
128     break;
129     case 'y': /* y resolution */
130     check(2,"i");
131     vresolu = atoi(argv[++i]);
132     break;
133     case 'w': /* warnings */
134     rval = erract[WARNING].pf != NULL;
135     bool(2,rval);
136     if (rval) erract[WARNING].pf = wputs;
137     else erract[WARNING].pf = NULL;
138     break;
139     case 'e': /* error file */
140     check(2,"s");
141     errfile = argv[++i];
142     break;
143     case 'l': /* limit distance */
144     if (argv[i][2] != 'd')
145     goto badopt;
146     bool(3,lim_dist);
147     break;
148     case 'I': /* immed. irradiance */
149     bool(2,imm_irrad);
150     break;
151     case 'f': /* format i/o */
152     switch (argv[i][2]) {
153     case 'a': /* ascii */
154     case 'f': /* float */
155     case 'd': /* double */
156     inform = argv[i][2];
157     break;
158     default:
159     goto badopt;
160     }
161     switch (argv[i][3]) {
162     case '\0':
163     outform = inform;
164     break;
165     case 'a': /* ascii */
166     case 'f': /* float */
167     case 'd': /* double */
168     case 'c': /* color */
169     check(4,"");
170     outform = argv[i][3];
171     break;
172     default:
173     goto badopt;
174     }
175     break;
176     case 'o': /* output */
177     outvals = argv[i]+2;
178     break;
179     case 'h': /* header output */
180     rval = loadflags & IO_INFO;
181     bool(2,rval);
182     loadflags = rval ? loadflags | IO_INFO :
183     loadflags & ~IO_INFO;
184     break;
185     case 't': /* trace */
186     switch (argv[i][2]) {
187     case 'i': /* include */
188     case 'I':
189     check(3,"s");
190     if (traincl != 1) {
191     traincl = 1;
192     tralp = tralist;
193     }
194     if (argv[i][2] == 'I') { /* file */
195     rval = wordfile(tralp,
196 greg 2.3 getpath(argv[++i],getrlibpath(),R_OK));
197 greg 2.1 if (rval < 0) {
198     sprintf(errmsg,
199     "cannot open trace include file \"%s\"",
200     argv[i]);
201     error(SYSTEM, errmsg);
202     }
203     tralp += rval;
204     } else {
205     *tralp++ = argv[++i];
206     *tralp = NULL;
207     }
208     break;
209     case 'e': /* exclude */
210     case 'E':
211     check(3,"s");
212     if (traincl != 0) {
213     traincl = 0;
214     tralp = tralist;
215     }
216     if (argv[i][2] == 'E') { /* file */
217     rval = wordfile(tralp,
218 greg 2.3 getpath(argv[++i],getrlibpath(),R_OK));
219 greg 2.1 if (rval < 0) {
220     sprintf(errmsg,
221     "cannot open trace exclude file \"%s\"",
222     argv[i]);
223     error(SYSTEM, errmsg);
224     }
225     tralp += rval;
226     } else {
227     *tralp++ = argv[++i];
228     *tralp = NULL;
229     }
230     break;
231     default:
232     goto badopt;
233     }
234     break;
235     #ifdef PERSIST
236     case 'P': /* persist file */
237     if (argv[i][2] == 'P') {
238     check(3,"s");
239     persist = PARALLEL;
240     } else {
241     check(2,"s");
242     persist = PERSIST;
243     }
244     persistfile(argv[++i]);
245     break;
246     #endif
247     default:
248     goto badopt;
249     }
250     }
251 greg 2.18 if (nproc > 1) {
252     if (persist)
253     error(USER, "multiprocessing incompatible with persist file");
254     if (imm_irrad)
255     error(USER, "multiprocessing incompatible with immediate irradiance");
256     if (hresolu > 0 && hresolu < nproc)
257     error(WARNING, "number of cores should not exceed horizontal resolution");
258     if (trace != NULL)
259     error(WARNING, "multiprocessing does not work properly with trace mode");
260     }
261 greg 2.1 /* initialize object types */
262     initotypes();
263     /* initialize urand */
264 greg 2.14 if (rand_samp) {
265     srandom((long)time(0));
266     initurand(0);
267     } else {
268     srandom(0L);
269     initurand(2048);
270     }
271 greg 2.1 /* set up signal handling */
272     sigdie(SIGINT, "Interrupt");
273 schorsch 2.5 #ifdef SIGHUP
274 greg 2.1 sigdie(SIGHUP, "Hangup");
275 schorsch 2.5 #endif
276 greg 2.1 sigdie(SIGTERM, "Terminate");
277 schorsch 2.5 #ifdef SIGPIPE
278 greg 2.1 sigdie(SIGPIPE, "Broken pipe");
279 schorsch 2.5 #endif
280     #ifdef SIGALRM
281 greg 2.1 sigdie(SIGALRM, "Alarm clock");
282 schorsch 2.5 #endif
283 greg 2.1 #ifdef SIGXCPU
284     sigdie(SIGXCPU, "CPU limit exceeded");
285     sigdie(SIGXFSZ, "File size exceeded");
286     #endif
287     /* open error file */
288     if (errfile != NULL) {
289     if (freopen(errfile, "a", stderr) == NULL)
290     quit(2);
291     fprintf(stderr, "**************\n*** PID %5d: ",
292     getpid());
293     printargs(argc, argv, stderr);
294     putc('\n', stderr);
295     fflush(stderr);
296     }
297     #ifdef NICE
298     nice(NICE); /* lower priority */
299     #endif
300     /* get octree */
301     if (i == argc)
302 greg 2.18 octnm = NULL;
303 greg 2.1 else if (i == argc-1)
304 greg 2.18 octnm = argv[i];
305 greg 2.1 else
306     goto badopt;
307 greg 2.18 if (octnm == NULL)
308 greg 2.1 error(USER, "missing octree argument");
309     /* set up output */
310     #ifdef PERSIST
311     if (persist) {
312     duped1 = dup(fileno(stdout)); /* don't lose our output */
313     openheader();
314     }
315     #endif
316     if (outform != 'a')
317 schorsch 2.4 SET_FILE_BINARY(stdout);
318 greg 2.18 readoct(octnm, loadflags, &thescene, NULL);
319 greg 2.1 nsceneobjs = nobjects;
320    
321     if (loadflags & IO_INFO) { /* print header */
322     printargs(i, argv, stdout);
323     printf("SOFTWARE= %s\n", VersionID);
324     fputnow(stdout);
325     fputformat(formstr(outform), stdout);
326     putchar('\n');
327     }
328    
329     marksources(); /* find and mark sources */
330    
331     setambient(); /* initialize ambient calculation */
332    
333     #ifdef PERSIST
334     if (persist) {
335     fflush(stdout);
336     /* reconnect stdout */
337     dup2(duped1, fileno(stdout));
338     close(duped1);
339     if (persist == PARALLEL) { /* multiprocessing */
340     preload_objs(); /* preload scene */
341     shm_boundary = (char *)malloc(16);
342     strcpy(shm_boundary, "SHM_BOUNDARY");
343     while ((rval=fork()) == 0) { /* keep on forkin' */
344     pflock(1);
345     pfhold();
346 greg 2.15 ambsync(); /* load new values */
347 greg 2.1 }
348     if (rval < 0)
349     error(SYSTEM, "cannot fork child for persist function");
350 greg 2.15 pfdetach(); /* parent will run then exit */
351 greg 2.1 }
352     }
353     runagain:
354     if (persist)
355     dupheader(); /* send header to stdout */
356     #endif
357 greg 2.18 if (nproc > 1) /* start multiprocessing */
358     ray_popen(nproc);
359 greg 2.1 /* trace rays */
360     rtrace(NULL);
361     /* flush ambient file */
362     ambsync();
363     #ifdef PERSIST
364     if (persist == PERSIST) { /* first run-through */
365     if ((rval=fork()) == 0) { /* child loops until killed */
366     pflock(1);
367     persist = PCHILD;
368     } else { /* original process exits */
369     if (rval < 0)
370     error(SYSTEM, "cannot fork child for persist function");
371     pfdetach(); /* parent exits */
372     }
373     }
374     if (persist == PCHILD) { /* wait for a signal then go again */
375     pfhold();
376     raynum = nrays = 0; /* reinitialize */
377     goto runagain;
378     }
379     #endif
380     quit(0);
381    
382     badopt:
383     sprintf(errmsg, "command line error at '%s'", argv[i]);
384     error(USER, errmsg);
385 schorsch 2.9 return 1; /* pro forma return */
386 greg 2.1
387     #undef check
388     #undef bool
389     }
390    
391    
392     void
393 schorsch 2.9 wputs( /* warning output function */
394     char *s
395     )
396 greg 2.1 {
397     int lasterrno = errno;
398     eputs(s);
399     errno = lasterrno;
400     }
401    
402    
403     void
404 schorsch 2.9 eputs( /* put string to stderr */
405     register char *s
406     )
407 greg 2.1 {
408     static int midline = 0;
409    
410     if (!*s)
411     return;
412     if (!midline++) {
413     fputs(progname, stderr);
414     fputs(": ", stderr);
415     }
416     fputs(s, stderr);
417     if (s[strlen(s)-1] == '\n') {
418     fflush(stderr);
419     midline = 0;
420     }
421     }
422    
423    
424 schorsch 2.9 static void
425     onsig( /* fatal signal */
426     int signo
427     )
428 greg 2.1 {
429     static int gotsig = 0;
430    
431     if (gotsig++) /* two signals and we're gone! */
432     _exit(signo);
433    
434 schorsch 2.5 #ifdef SIGALRM
435 greg 2.1 alarm(15); /* allow 15 seconds to clean up */
436     signal(SIGALRM, SIG_DFL); /* make certain we do die */
437 schorsch 2.5 #endif
438 greg 2.1 eputs("signal - ");
439     eputs(sigerr[signo]);
440     eputs("\n");
441     quit(3);
442     }
443    
444    
445 schorsch 2.9 static void
446     sigdie( /* set fatal signal */
447     int signo,
448     char *msg
449     )
450 greg 2.1 {
451     if (signal(signo, onsig) == SIG_IGN)
452     signal(signo, SIG_IGN);
453     sigerr[signo] = msg;
454     }
455    
456    
457 schorsch 2.9 static void
458 schorsch 2.8 printdefaults(void) /* print default values to stdout */
459 greg 2.1 {
460     register char *cp;
461    
462     if (imm_irrad)
463     printf("-I+\t\t\t\t# immediate irradiance on\n");
464 greg 2.18 printf("-n %-2d\t\t\t\t# number of rendering processes\n", nproc);
465 greg 2.16 printf("-x %-9d\t\t\t# x resolution (flush interval)\n", hresolu);
466     printf("-y %-9d\t\t\t# y resolution\n", vresolu);
467 greg 2.1 printf(lim_dist ? "-ld+\t\t\t\t# limit distance on\n" :
468     "-ld-\t\t\t\t# limit distance off\n");
469 greg 2.10 printf("-h%c\t\t\t\t# %s header\n", loadflags & IO_INFO ? '+' : '-',
470     loadflags & IO_INFO ? "output" : "no");
471 greg 2.1 printf("-f%c%c\t\t\t\t# format input/output = %s/%s\n",
472     inform, outform, formstr(inform), formstr(outform));
473 greg 2.10 printf("-o%-9s\t\t\t# output", outvals);
474 greg 2.1 for (cp = outvals; *cp; cp++)
475     switch (*cp) {
476 greg 2.10 case 't': case 'T': printf(" trace"); break;
477 greg 2.1 case 'o': printf(" origin"); break;
478     case 'd': printf(" direction"); break;
479     case 'v': printf(" value"); break;
480 greg 2.13 case 'V': printf(" contribution"); break;
481 greg 2.1 case 'l': printf(" length"); break;
482     case 'L': printf(" first_length"); break;
483     case 'p': printf(" point"); break;
484     case 'n': printf(" normal"); break;
485     case 'N': printf(" unperturbed_normal"); break;
486     case 's': printf(" surface"); break;
487     case 'w': printf(" weight"); break;
488 greg 2.13 case 'W': printf(" coefficient"); break;
489 greg 2.1 case 'm': printf(" modifier"); break;
490 greg 2.10 case 'M': printf(" material"); break;
491     case '-': printf(" stroke"); break;
492 greg 2.1 }
493     putchar('\n');
494     printf(erract[WARNING].pf != NULL ?
495     "-w+\t\t\t\t# warning messages on\n" :
496     "-w-\t\t\t\t# warning messages off\n");
497     print_rdefaults();
498     }