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root/radiance/ray/src/hd/rholo.c
Revision: 3.4
Committed: Mon Nov 3 18:33:12 1997 UTC (26 years, 5 months ago) by gregl
Content type: text/plain
Branch: MAIN
Changes since 3.3: +13 -9 lines
Log Message:
added more routines for display support

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 hdcachesize = 1024.*1024.*vflt(CACHE);
142 /* open report file */
143 if (vdef(REPORT)) {
144 register char *s = sskip2(vval(REPORT), 1);
145 if (*s && freopen(s, "a", stderr) == NULL)
146 quit(2);
147 }
148 /* start rtrace */
149 if (ncprocs > 0) {
150 i = start_rtrace();
151 if (i < 1)
152 error(USER, "cannot start rtrace process");
153 if (vdef(REPORT)) { /* make first report */
154 printargs(rtargc, rtargv, stderr);
155 report(0);
156 }
157 /* allocate packets */
158 freepacks = (PACKET *)bmalloc(i*sizeof(PACKET));
159 if (freepacks == NULL)
160 goto memerr;
161 freepacks[--i].nr = 0;
162 freepacks[i].next = NULL;
163 if (!vbool(OBSTRUCTIONS)) {
164 freepacks[i].offset = (float *)bmalloc(
165 RPACKSIZ*sizeof(float)*(i+1) );
166 if (freepacks[i].offset == NULL)
167 goto memerr;
168 } else
169 freepacks[i].offset = NULL;
170 while (i--) {
171 freepacks[i].nr = 0;
172 freepacks[i].offset = freepacks[i+1].offset == NULL ?
173 NULL : freepacks[i+1].offset+RPACKSIZ ;
174 freepacks[i].next = &freepacks[i+1];
175 }
176 }
177 return;
178 memerr:
179 error(SYSTEM, "out of memory in initrholo");
180 }
181
182
183 rholo() /* holodeck main loop */
184 {
185 static int idle = 1;
186 PACKET *pl = NULL, *plend;
187 register PACKET *p;
188 time_t t;
189 long l;
190
191 if (outdev != NULL) /* check display */
192 if (!disp_check(idle))
193 return(0);
194 /* display only? */
195 if (ncprocs <= 0)
196 return(1);
197 /* check file size */
198 if ((l = 1024.*1024.*vflt(DISKSPACE)) > 0 &&
199 hdfiluse(hdlist[0]->fd, 0) + hdmemuse(0) >= l)
200 return(0);
201 /* check time */
202 if (endtime > 0 || reporttime > 0)
203 t = time(NULL);
204 if (endtime > 0 && t >= endtime)
205 return(0);
206 if (reporttime > 0 && t >= reporttime)
207 report(t);
208 /* get packets to process */
209 while (freepacks != NULL) {
210 p = freepacks; freepacks = p->next; p->next = NULL;
211 if (!next_packet(p)) {
212 p->next = freepacks; freepacks = p;
213 break;
214 }
215 if (pl == NULL) pl = p;
216 else plend->next = p;
217 plend = p;
218 }
219 idle = pl == NULL && freepacks != NULL;
220 /* are we out of stuff to do? */
221 if (idle && outdev == NULL)
222 return(0);
223 /* else process packets */
224 done_packets(do_packets(pl));
225 return(1); /* and continue */
226 }
227
228
229 report(t) /* report progress so far */
230 time_t t;
231 {
232 if (t == 0)
233 t = time(NULL);
234 fprintf(stderr, "%s: %ld packets (%ld rays) done after %.2f hours\n",
235 progname, npacksdone, nraysdone, (t-starttime)/3600.);
236 fflush(stderr);
237 if (vdef(REPORT))
238 reporttime = t + (time_t)(vflt(REPORT)*60.+.5);
239 }
240
241
242 setdefaults(gp) /* set default values */
243 register HDGRID *gp;
244 {
245 extern char *atos();
246 register int i;
247 double len[3], maxlen, d;
248 char buf[64];
249
250 if (!vdef(SECTION)) {
251 sprintf(errmsg, "%s must be defined", vnam(SECTION));
252 error(USER, errmsg);
253 }
254 if (vdef(SECTION) > 1) {
255 sprintf(errmsg, "ignoring all but first %s", vnam(SECTION));
256 error(WARNING, errmsg);
257 }
258 if (sscanf(vval(SECTION),
259 "%lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf",
260 &gp->orig[0], &gp->orig[1], &gp->orig[2],
261 &gp->xv[0][0], &gp->xv[0][1], &gp->xv[0][2],
262 &gp->xv[1][0], &gp->xv[1][1], &gp->xv[1][2],
263 &gp->xv[2][0], &gp->xv[2][1], &gp->xv[2][2]) != 12)
264 badvalue(SECTION);
265 maxlen = 0.;
266 for (i = 0; i < 3; i++)
267 if ((len[i] = VLEN(gp->xv[i])) > maxlen)
268 maxlen = len[i];
269 if (!vdef(GRID)) {
270 sprintf(buf, "%.4f", maxlen/8.);
271 vval(GRID) = savqstr(buf);
272 vdef(GRID)++;
273 }
274 if ((d = vflt(GRID)) <= FTINY)
275 badvalue(GRID);
276 for (i = 0; i < 3; i++)
277 gp->grid[i] = len[i]/d + (1.-FTINY);
278 if (!vdef(EXPOSURE)) {
279 sprintf(errmsg, "%s must be defined", vnam(EXPOSURE));
280 error(USER, errmsg);
281 }
282 expval = vval(EXPOSURE)[0] == '-' || vval(EXPOSURE)[0] == '+' ?
283 pow(2., vflt(EXPOSURE)) : vflt(EXPOSURE);
284 if (!vdef(OCTREE)) {
285 if ((vval(OCTREE) = bmalloc(strlen(froot)+5)) == NULL)
286 error(SYSTEM, "out of memory");
287 sprintf(vval(OCTREE), "%s.oct", froot);
288 vdef(OCTREE)++;
289 }
290 if (!vdef(DISKSPACE)) {
291 sprintf(errmsg,
292 "no %s setting, assuming 100 Mbytes available",
293 vnam(DISKSPACE));
294 error(WARNING, errmsg);
295 vval(DISKSPACE) = "100";
296 vdef(DISKSPACE)++;
297 }
298 if (!vdef(CACHE)) {
299 sprintf(errmsg,
300 "no %s setting, assuming 10 Mbytes available",
301 vnam(CACHE));
302 error(WARNING, errmsg);
303 vval(CACHE) = "10";
304 vdef(CACHE)++;
305 }
306 if (!vdef(OBSTRUCTIONS)) {
307 vval(OBSTRUCTIONS) = "T";
308 vdef(OBSTRUCTIONS)++;
309 }
310 if (!vdef(OCCUPANCY)) {
311 vval(OCCUPANCY) = "U";
312 vdef(OCCUPANCY)++;
313 }
314 /* append rendering options */
315 if (vdef(RENDER))
316 rtargc += wordstring(rtargv+rtargc, vval(RENDER));
317 }
318
319
320 creatholo(gp) /* create a holodeck output file */
321 HDGRID *gp;
322 {
323 long endloc = 0;
324 FILE *fp;
325 /* open & truncate file */
326 if ((fp = fopen(hdkfile, "w+")) == NULL) {
327 sprintf(errmsg, "cannot open \"%s\" for writing", hdkfile);
328 error(SYSTEM, errmsg);
329 }
330 /* write information header */
331 newheader("RADIANCE", fp);
332 printvars(fp);
333 fputformat(HOLOFMT, fp);
334 fputc('\n', fp);
335 putw(HOLOMAGIC, fp); /* put magic number & terminus */
336 fwrite(&endloc, sizeof(long), 1, fp);
337 fflush(fp); /* flush buffer */
338 hdinit(fileno(fp), gp); /* allocate and initialize index */
339 /* we're dropping fp here.... */
340 }
341
342
343 headline(s) /* process information header line */
344 char *s;
345 {
346 extern char FMTSTR[];
347 register char *cp;
348 char fmt[32];
349
350 if (formatval(fmt, s)) {
351 if (strcmp(fmt, HOLOFMT)) {
352 sprintf(errmsg, "%s file \"%s\" has %s%s",
353 HOLOFMT, hdkfile, FMTSTR, fmt);
354 error(USER, errmsg);
355 }
356 return;
357 }
358 for (cp = s; *cp; cp++) /* take off any comments */
359 if (*cp == '#') {
360 *cp = '\0';
361 break;
362 }
363 setvariable(s, matchvar); /* don't flag errors */
364 }
365
366
367 loadholo() /* start loading a holodeck from fname */
368 {
369 FILE *fp;
370 long endloc;
371 /* open holodeck file */
372 if ((fp = fopen(hdkfile, ncprocs>0 ? "r+" : "r")) == NULL) {
373 sprintf(errmsg, "cannot open \"%s\" for %s", hdkfile,
374 ncprocs>0 ? "appending" : "reading");
375 error(SYSTEM, errmsg);
376 }
377 /* load variables from header */
378 getheader(fp, headline, NULL);
379 /* check magic number */
380 if (getw(fp) != HOLOMAGIC) {
381 sprintf(errmsg, "bad magic number in holodeck file \"%s\"",
382 hdkfile);
383 error(USER, errmsg);
384 }
385 fread(&endloc, sizeof(long), 1, fp);
386 if (endloc != 0)
387 error(WARNING, "ignoring multiple sections in holodeck file");
388 fseek(fp, 0L, 1); /* align system file pointer */
389 hdinit(fileno(fp), NULL); /* allocate and load index */
390 /* we're dropping fp here.... */
391 }
392
393
394 done_packets(pl) /* handle finished packets */
395 PACKET *pl;
396 {
397 register PACKET *p;
398
399 while (pl != NULL) {
400 p = pl; pl = p->next; p->next = NULL;
401 if (p->nr > 0) { /* add to holodeck */
402 bcopy((char *)p->ra,
403 (char *)hdnewrays(hdlist[p->hd],p->bi,p->nr),
404 p->nr*sizeof(RAYVAL));
405 if (outdev != NULL) /* display it */
406 disp_packet(p);
407 }
408 nraysdone += p->nr;
409 npacksdone++;
410 p->nr = 0; /* push onto free list */
411 p->next = freepacks;
412 freepacks = p;
413 }
414 }
415
416
417 getradfile(rfargs) /* run rad and get needed variables */
418 char *rfargs;
419 {
420 static short mvar[] = {VIEW,OCTREE,EXPOSURE,-1};
421 static char tf1[] = TEMPLATE;
422 char tf2[64];
423 char combuf[256];
424 char *pippt;
425 register int i;
426 register char *cp;
427 /* create rad command */
428 mktemp(tf1);
429 sprintf(tf2, "%s.rif", tf1);
430 sprintf(combuf,
431 "rad -v 0 -s -e -w %s OPTFILE=%s | egrep '^[ \t]*(NOMATCH",
432 rfargs, tf1);
433 cp = combuf;
434 while (*cp){
435 if (*cp == '|') pippt = cp;
436 cp++;
437 } /* match unset variables */
438 for (i = 0; mvar[i] >= 0; i++)
439 if (!vdef(mvar[i])) {
440 *cp++ = '|';
441 strcpy(cp, vnam(mvar[i]));
442 while (*cp) cp++;
443 pippt = NULL;
444 }
445 if (pippt != NULL)
446 strcpy(pippt, "> /dev/null"); /* nothing to match */
447 else
448 sprintf(cp, ")[ \t]*=' > %s", tf2);
449 if (system(combuf)) {
450 error(SYSTEM, "cannot execute rad command");
451 unlink(tf2); /* clean up */
452 unlink(tf1);
453 quit(1);
454 }
455 if (pippt == NULL) {
456 loadvars(tf2); /* load variables */
457 unlink(tf2);
458 }
459 rtargc += wordfile(rtargv+rtargc, tf1); /* get rtrace options */
460 unlink(tf1); /* clean up */
461 }
462
463
464 rootname(rn, fn) /* remove tail from end of fn */
465 register char *rn, *fn;
466 {
467 char *tp, *dp;
468
469 for (tp = NULL, dp = rn; *rn = *fn++; rn++)
470 if (ISDIRSEP(*rn))
471 dp = rn;
472 else if (*rn == '.')
473 tp = rn;
474 if (tp != NULL && tp > dp)
475 *tp = '\0';
476 }
477
478
479 badvalue(vc) /* report bad variable value and exit */
480 int vc;
481 {
482 sprintf(errmsg, "bad value for variable '%s'", vnam(vc));
483 error(USER, errmsg);
484 }
485
486
487 eputs(s) /* put error message to stderr */
488 register char *s;
489 {
490 static int midline = 0;
491
492 if (!*s)
493 return;
494 if (!midline++) { /* prepend line with program name */
495 fputs(progname, stderr);
496 fputs(": ", stderr);
497 }
498 fputs(s, stderr);
499 if (s[strlen(s)-1] == '\n') {
500 fflush(stderr);
501 midline = 0;
502 }
503 }
504
505
506 wputs(s) /* put warning string to stderr */
507 char *s;
508 {
509 if (!nowarn)
510 eputs(s);
511 }
512
513
514 quit(ec) /* exit program gracefully */
515 int ec;
516 {
517 int status = 0;
518
519 if (outdev != NULL) /* close display */
520 disp_close();
521 if (hdlist[0] != NULL) { /* flush holodeck */
522 if (ncprocs > 0) {
523 done_packets(flush_queue());
524 status = end_rtrace(); /* close rtrace */
525 hdflush(NULL);
526 if (vdef(REPORT)) {
527 long fsiz, fuse;
528 report(0);
529 fsiz = lseek(hdlist[0]->fd, 0L, 2);
530 fuse = hdfiluse(hdlist[0]->fd, 1);
531 fprintf(stderr,
532 "%s: %.1f Mbyte holodeck file, %.1f%% fragmentation\n",
533 hdkfile, fsiz/(1024.*1024.),
534 100.*(fsiz-fuse)/fsiz);
535 }
536 } else
537 hdflush(NULL);
538 }
539 exit(ec ? ec : status); /* exit */
540 }