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root/radiance/ray/src/hd/rholo.c
Revision: 3.5
Committed: Wed Nov 5 17:29:17 1997 UTC (26 years, 4 months ago) by gregl
Content type: text/plain
Branch: MAIN
Changes since 3.4: +11 -9 lines
Log Message:
added manual flushing for when there is no display process

File Contents

# Content
1 /* Copyright (c) 1997 Silicon Graphics, Inc. */
2
3 #ifndef lint
4 static char SCCSid[] = "$SunId$ SGI";
5 #endif
6
7 /*
8 * Radiance holodeck generation controller
9 */
10
11 #include "rholo.h"
12 #include "paths.h"
13 #include <sys/types.h>
14
15 /* the following must be consistent with rholo.h */
16 int NVARS = NRHVARS; /* total number of variables */
17
18 VARIABLE vv[] = RHVINIT; /* variable-value pairs */
19
20 char *progname; /* our program name */
21 char *hdkfile; /* holodeck file name */
22 char froot[MAXPATH]; /* root file name */
23
24 int nowarn = 0; /* turn warnings off? */
25
26 double expval = 1.; /* global exposure value */
27
28 int ncprocs = 0; /* desired number of compute processes */
29
30 char *outdev = NULL; /* output device name */
31
32 time_t starttime; /* time we got started */
33 time_t endtime; /* time we should end by */
34 time_t reporttime; /* time for next report */
35
36 int rtargc = 1; /* rtrace command */
37 char *rtargv[128] = {"rtrace", NULL};
38
39 long nraysdone = 0L; /* number of rays done */
40 long npacksdone = 0L; /* number of packets done */
41
42 PACKET *freepacks; /* available packets */
43
44 extern time_t time();
45
46
47 main(argc, argv)
48 int argc;
49 char *argv[];
50 {
51 HDGRID hdg;
52 int i;
53 int force = 0;
54 /* mark start time */
55 starttime = time(NULL);
56 progname = argv[0]; /* get arguments */
57 for (i = 1; i < argc && argv[i][0] == '-'; i++)
58 switch (argv[i][1]) {
59 case 'w': /* turn off warnings */
60 nowarn++;
61 break;
62 case 'f': /* force overwrite */
63 force++;
64 break;
65 case 'n': /* compute processes */
66 if (i >= argc-2)
67 goto userr;
68 ncprocs = atoi(argv[++i]);
69 break;
70 case 'o': /* output display */
71 if (i >= argc-2)
72 goto userr;
73 outdev = argv[++i];
74 break;
75 default:
76 goto userr;
77 }
78 /* do we have a job? */
79 if (outdev == NULL && ncprocs <= 0)
80 goto userr;
81 /* get root file name */
82 rootname(froot, hdkfile=argv[i++]);
83 /* load... */
84 if (i < argc) { /* variables */
85 loadvars(argv[i++]);
86 /* cmdline settings */
87 for ( ; i < argc; i++)
88 if (setvariable(argv[i], matchvar) < 0) {
89 sprintf(errmsg, "unknown variable: %s",
90 argv[i]);
91 error(USER, errmsg);
92 }
93 /* check settings */
94 checkvalues();
95 /* load RIF if any */
96 if (vdef(RIF))
97 getradfile(vval(RIF));
98 /* set defaults */
99 setdefaults(&hdg);
100 /* holodeck exists? */
101 if (!force && access(hdkfile, R_OK|W_OK) == 0)
102 error(USER,
103 "holodeck file exists -- use -f to overwrite");
104 /* create holodeck */
105 creatholo(&hdg);
106 } else { /* else load holodeck */
107 loadholo();
108 if (vdef(RIF)) /* load RIF if any */
109 getradfile(vval(RIF));
110 }
111 /* initialize */
112 initrholo();
113 /* run */
114 while (rholo())
115 ;
116 /* done */
117 quit(0);
118 userr:
119 fprintf(stderr,
120 "Usage: %s {-n nprocs|-o disp} [-w][-f] output.hdk [control.hif [VAR=val ..]]\n",
121 progname);
122 quit(1);
123 }
124
125
126 initrholo() /* get our holodeck running */
127 {
128 extern int global_packet();
129 register int i;
130
131 if (outdev != NULL) /* open output device */
132 disp_open(outdev);
133 else if (ncprocs > 0) /* else use global ray feed */
134 init_global();
135 /* record end time */
136 if (!vdef(TIME) || vflt(TIME) <= FTINY)
137 endtime = 0;
138 else
139 endtime = starttime + vflt(TIME)*3600.;
140 /* set up memory cache */
141 if (outdev == NULL)
142 hdcachesize = 0; /* manual flushing */
143 else if (vdef(CACHE))
144 hdcachesize = 1024.*1024.*vflt(CACHE);
145 /* open report file */
146 if (vdef(REPORT)) {
147 register char *s = sskip2(vval(REPORT), 1);
148 if (*s && freopen(s, "a", stderr) == NULL)
149 quit(2);
150 }
151 /* start rtrace */
152 if (ncprocs > 0) {
153 i = start_rtrace();
154 if (i < 1)
155 error(USER, "cannot start rtrace process");
156 if (vdef(REPORT)) { /* make first report */
157 printargs(rtargc, rtargv, stderr);
158 report(0);
159 }
160 /* allocate packets */
161 freepacks = (PACKET *)bmalloc(i*sizeof(PACKET));
162 if (freepacks == NULL)
163 goto memerr;
164 freepacks[--i].nr = 0;
165 freepacks[i].next = NULL;
166 if (!vbool(OBSTRUCTIONS)) {
167 freepacks[i].offset = (float *)bmalloc(
168 RPACKSIZ*sizeof(float)*(i+1) );
169 if (freepacks[i].offset == NULL)
170 goto memerr;
171 } else
172 freepacks[i].offset = NULL;
173 while (i--) {
174 freepacks[i].nr = 0;
175 freepacks[i].offset = freepacks[i+1].offset == NULL ?
176 NULL : freepacks[i+1].offset+RPACKSIZ ;
177 freepacks[i].next = &freepacks[i+1];
178 }
179 }
180 return;
181 memerr:
182 error(SYSTEM, "out of memory in initrholo");
183 }
184
185
186 rholo() /* holodeck main loop */
187 {
188 static int idle = 1;
189 PACKET *pl = NULL, *plend;
190 register PACKET *p;
191 time_t t;
192 long l;
193
194 if (outdev != NULL) /* check display */
195 if (!disp_check(idle))
196 return(0);
197 /* display only? */
198 if (ncprocs <= 0)
199 return(1);
200 /* check file size */
201 if ((l = 1024.*1024.*vflt(DISKSPACE)) > 0 &&
202 hdfiluse(hdlist[0]->fd, 0) + hdmemuse(0) >= l)
203 return(0);
204 /* check time */
205 if (endtime > 0 || reporttime > 0)
206 t = time(NULL);
207 if (endtime > 0 && t >= endtime)
208 return(0);
209 if (reporttime > 0 && t >= reporttime)
210 report(t);
211 /* get packets to process */
212 while (freepacks != NULL) {
213 p = freepacks; freepacks = p->next; p->next = NULL;
214 if (!next_packet(p)) {
215 p->next = freepacks; freepacks = p;
216 break;
217 }
218 if (pl == NULL) pl = p;
219 else plend->next = p;
220 plend = p;
221 }
222 idle = pl == NULL && freepacks != NULL;
223 /* are we out of stuff to do? */
224 if (idle && outdev == NULL)
225 return(0);
226 /* else process packets */
227 done_packets(do_packets(pl));
228 return(1); /* and continue */
229 }
230
231
232 report(t) /* report progress so far */
233 time_t t;
234 {
235 if (t == 0)
236 t = time(NULL);
237 fprintf(stderr, "%s: %ld packets (%ld rays) done after %.2f hours\n",
238 progname, npacksdone, nraysdone, (t-starttime)/3600.);
239 fflush(stderr);
240 if (vdef(REPORT))
241 reporttime = t + (time_t)(vflt(REPORT)*60.+.5);
242 }
243
244
245 setdefaults(gp) /* set default values */
246 register HDGRID *gp;
247 {
248 extern char *atos();
249 register int i;
250 double len[3], maxlen, d;
251 char buf[64];
252
253 if (!vdef(SECTION)) {
254 sprintf(errmsg, "%s must be defined", vnam(SECTION));
255 error(USER, errmsg);
256 }
257 if (vdef(SECTION) > 1) {
258 sprintf(errmsg, "ignoring all but first %s", vnam(SECTION));
259 error(WARNING, errmsg);
260 }
261 if (sscanf(vval(SECTION),
262 "%lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf",
263 &gp->orig[0], &gp->orig[1], &gp->orig[2],
264 &gp->xv[0][0], &gp->xv[0][1], &gp->xv[0][2],
265 &gp->xv[1][0], &gp->xv[1][1], &gp->xv[1][2],
266 &gp->xv[2][0], &gp->xv[2][1], &gp->xv[2][2]) != 12)
267 badvalue(SECTION);
268 maxlen = 0.;
269 for (i = 0; i < 3; i++)
270 if ((len[i] = VLEN(gp->xv[i])) > maxlen)
271 maxlen = len[i];
272 if (!vdef(GRID)) {
273 sprintf(buf, "%.4f", maxlen/8.);
274 vval(GRID) = savqstr(buf);
275 vdef(GRID)++;
276 }
277 if ((d = vflt(GRID)) <= FTINY)
278 badvalue(GRID);
279 for (i = 0; i < 3; i++)
280 gp->grid[i] = len[i]/d + (1.-FTINY);
281 if (!vdef(EXPOSURE)) {
282 sprintf(errmsg, "%s must be defined", vnam(EXPOSURE));
283 error(USER, errmsg);
284 }
285 expval = vval(EXPOSURE)[0] == '-' || vval(EXPOSURE)[0] == '+' ?
286 pow(2., vflt(EXPOSURE)) : vflt(EXPOSURE);
287 if (!vdef(OCTREE)) {
288 if ((vval(OCTREE) = bmalloc(strlen(froot)+5)) == NULL)
289 error(SYSTEM, "out of memory");
290 sprintf(vval(OCTREE), "%s.oct", froot);
291 vdef(OCTREE)++;
292 }
293 if (!vdef(DISKSPACE)) {
294 sprintf(errmsg,
295 "no %s setting, assuming 100 Mbytes available",
296 vnam(DISKSPACE));
297 error(WARNING, errmsg);
298 vval(DISKSPACE) = "100";
299 vdef(DISKSPACE)++;
300 }
301 if (!vdef(OBSTRUCTIONS)) {
302 vval(OBSTRUCTIONS) = "T";
303 vdef(OBSTRUCTIONS)++;
304 }
305 if (!vdef(OCCUPANCY)) {
306 vval(OCCUPANCY) = "U";
307 vdef(OCCUPANCY)++;
308 }
309 /* append rendering options */
310 if (vdef(RENDER))
311 rtargc += wordstring(rtargv+rtargc, vval(RENDER));
312 }
313
314
315 creatholo(gp) /* create a holodeck output file */
316 HDGRID *gp;
317 {
318 long endloc = 0;
319 FILE *fp;
320 /* open & truncate file */
321 if ((fp = fopen(hdkfile, "w+")) == NULL) {
322 sprintf(errmsg, "cannot open \"%s\" for writing", hdkfile);
323 error(SYSTEM, errmsg);
324 }
325 /* write information header */
326 newheader("RADIANCE", fp);
327 printvars(fp);
328 fputformat(HOLOFMT, fp);
329 fputc('\n', fp);
330 putw(HOLOMAGIC, fp); /* put magic number & terminus */
331 fwrite(&endloc, sizeof(long), 1, fp);
332 fflush(fp); /* flush buffer */
333 hdinit(fileno(fp), gp); /* allocate and initialize index */
334 /* we're dropping fp here.... */
335 }
336
337
338 headline(s) /* process information header line */
339 char *s;
340 {
341 extern char FMTSTR[];
342 register char *cp;
343 char fmt[32];
344
345 if (formatval(fmt, s)) {
346 if (strcmp(fmt, HOLOFMT)) {
347 sprintf(errmsg, "%s file \"%s\" has %s%s",
348 HOLOFMT, hdkfile, FMTSTR, fmt);
349 error(USER, errmsg);
350 }
351 return;
352 }
353 for (cp = s; *cp; cp++) /* take off any comments */
354 if (*cp == '#') {
355 *cp = '\0';
356 break;
357 }
358 setvariable(s, matchvar); /* don't flag errors */
359 }
360
361
362 loadholo() /* start loading a holodeck from fname */
363 {
364 FILE *fp;
365 long endloc;
366 /* open holodeck file */
367 if ((fp = fopen(hdkfile, ncprocs>0 ? "r+" : "r")) == NULL) {
368 sprintf(errmsg, "cannot open \"%s\" for %s", hdkfile,
369 ncprocs>0 ? "appending" : "reading");
370 error(SYSTEM, errmsg);
371 }
372 /* load variables from header */
373 getheader(fp, headline, NULL);
374 /* check magic number */
375 if (getw(fp) != HOLOMAGIC) {
376 sprintf(errmsg, "bad magic number in holodeck file \"%s\"",
377 hdkfile);
378 error(USER, errmsg);
379 }
380 fread(&endloc, sizeof(long), 1, fp);
381 if (endloc != 0)
382 error(WARNING, "ignoring multiple sections in holodeck file");
383 fseek(fp, 0L, 1); /* align system file pointer */
384 hdinit(fileno(fp), NULL); /* allocate and load index */
385 /* we're dropping fp here.... */
386 }
387
388
389 done_packets(pl) /* handle finished packets */
390 PACKET *pl;
391 {
392 static int nunflushed = 0;
393 register PACKET *p;
394
395 while (pl != NULL) {
396 p = pl; pl = p->next; p->next = NULL;
397 if (p->nr > 0) { /* add to holodeck */
398 bcopy((char *)p->ra,
399 (char *)hdnewrays(hdlist[p->hd],p->bi,p->nr),
400 p->nr*sizeof(RAYVAL));
401 if (outdev != NULL) /* display it */
402 disp_packet(p);
403 else
404 nunflushed += p->nr;
405 }
406 nraysdone += p->nr;
407 npacksdone++;
408 p->nr = 0; /* push onto free list */
409 p->next = freepacks;
410 freepacks = p;
411 }
412 if (nunflushed >= 256*RPACKSIZ) {
413 hdflush(NULL); /* flush holodeck buffers */
414 nunflushed = 0;
415 }
416 }
417
418
419 getradfile(rfargs) /* run rad and get needed variables */
420 char *rfargs;
421 {
422 static short mvar[] = {VIEW,OCTREE,EXPOSURE,-1};
423 static char tf1[] = TEMPLATE;
424 char tf2[64];
425 char combuf[256];
426 char *pippt;
427 register int i;
428 register char *cp;
429 /* create rad command */
430 mktemp(tf1);
431 sprintf(tf2, "%s.rif", tf1);
432 sprintf(combuf,
433 "rad -v 0 -s -e -w %s OPTFILE=%s | egrep '^[ \t]*(NOMATCH",
434 rfargs, tf1);
435 cp = combuf;
436 while (*cp){
437 if (*cp == '|') pippt = cp;
438 cp++;
439 } /* match unset variables */
440 for (i = 0; mvar[i] >= 0; i++)
441 if (!vdef(mvar[i])) {
442 *cp++ = '|';
443 strcpy(cp, vnam(mvar[i]));
444 while (*cp) cp++;
445 pippt = NULL;
446 }
447 if (pippt != NULL)
448 strcpy(pippt, "> /dev/null"); /* nothing to match */
449 else
450 sprintf(cp, ")[ \t]*=' > %s", tf2);
451 if (system(combuf)) {
452 error(SYSTEM, "cannot execute rad command");
453 unlink(tf2); /* clean up */
454 unlink(tf1);
455 quit(1);
456 }
457 if (pippt == NULL) {
458 loadvars(tf2); /* load variables */
459 unlink(tf2);
460 }
461 rtargc += wordfile(rtargv+rtargc, tf1); /* get rtrace options */
462 unlink(tf1); /* clean up */
463 }
464
465
466 rootname(rn, fn) /* remove tail from end of fn */
467 register char *rn, *fn;
468 {
469 char *tp, *dp;
470
471 for (tp = NULL, dp = rn; *rn = *fn++; rn++)
472 if (ISDIRSEP(*rn))
473 dp = rn;
474 else if (*rn == '.')
475 tp = rn;
476 if (tp != NULL && tp > dp)
477 *tp = '\0';
478 }
479
480
481 badvalue(vc) /* report bad variable value and exit */
482 int vc;
483 {
484 sprintf(errmsg, "bad value for variable '%s'", vnam(vc));
485 error(USER, errmsg);
486 }
487
488
489 eputs(s) /* put error message to stderr */
490 register char *s;
491 {
492 static int midline = 0;
493
494 if (!*s)
495 return;
496 if (!midline++) { /* prepend line with program name */
497 fputs(progname, stderr);
498 fputs(": ", stderr);
499 }
500 fputs(s, stderr);
501 if (s[strlen(s)-1] == '\n') {
502 fflush(stderr);
503 midline = 0;
504 }
505 }
506
507
508 wputs(s) /* put warning string to stderr */
509 char *s;
510 {
511 if (!nowarn)
512 eputs(s);
513 }
514
515
516 quit(ec) /* exit program gracefully */
517 int ec;
518 {
519 int status = 0;
520
521 if (outdev != NULL) /* close display */
522 disp_close();
523 if (hdlist[0] != NULL) { /* flush holodeck */
524 if (ncprocs > 0) {
525 done_packets(flush_queue());
526 status = end_rtrace(); /* close rtrace */
527 hdflush(NULL);
528 if (vdef(REPORT)) {
529 long fsiz, fuse;
530 report(0);
531 fsiz = lseek(hdlist[0]->fd, 0L, 2);
532 fuse = hdfiluse(hdlist[0]->fd, 1);
533 fprintf(stderr,
534 "%s: %.1f Mbyte holodeck file, %.1f%% fragmentation\n",
535 hdkfile, fsiz/(1024.*1024.),
536 100.*(fsiz-fuse)/fsiz);
537 }
538 } else
539 hdflush(NULL);
540 }
541 exit(ec ? ec : status); /* exit */
542 }